From b453872c35cfcbdbf5a794737817f7d4e7b1b579 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 12 May 2005 22:48:20 -0400 Subject: [NET] ieee80211 subsystem Contributors: Host AP contributors James Ketrenos Francois Romieu Adrian Bunk Matthew Galgoci diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c index 18a7d38..bed160a 100644 --- a/drivers/net/wireless/atmel.c +++ b/drivers/net/wireless/atmel.c @@ -68,7 +68,7 @@ #include #include #include -#include "ieee802_11.h" +#include #include "atmel.h" #define DRIVER_MAJOR 0 @@ -618,12 +618,12 @@ static int atmel_lock_mac(struct atmel_private *priv); static void atmel_wmem32(struct atmel_private *priv, u16 pos, u32 data); static void atmel_command_irq(struct atmel_private *priv); static int atmel_validate_channel(struct atmel_private *priv, int channel); -static void atmel_management_frame(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void atmel_management_frame(struct atmel_private *priv, struct ieee80211_hdr *header, u16 frame_len, u8 rssi); static void atmel_management_timer(u_long a); static void atmel_send_command(struct atmel_private *priv, int command, void *cmd, int cmd_size); static int atmel_send_command_wait(struct atmel_private *priv, int command, void *cmd, int cmd_size); -static void atmel_transmit_management_frame(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void atmel_transmit_management_frame(struct atmel_private *priv, struct ieee80211_hdr *header, u8 *body, int body_len); static u8 atmel_get_mib8(struct atmel_private *priv, u8 type, u8 index); @@ -827,7 +827,7 @@ static void tx_update_descriptor(struct atmel_private *priv, int is_bcast, u16 l static int start_tx (struct sk_buff *skb, struct net_device *dev) { struct atmel_private *priv = netdev_priv(dev); - struct ieee802_11_hdr header; + struct ieee80211_hdr header; unsigned long flags; u16 buff, frame_ctl, len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; u8 SNAP_RFC1024[6] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; @@ -863,17 +863,17 @@ static int start_tx (struct sk_buff *skb, struct net_device *dev) return 1; } - frame_ctl = IEEE802_11_FTYPE_DATA; + frame_ctl = IEEE80211_FTYPE_DATA; header.duration_id = 0; header.seq_ctl = 0; if (priv->wep_is_on) - frame_ctl |= IEEE802_11_FCTL_WEP; + frame_ctl |= IEEE80211_FCTL_WEP; if (priv->operating_mode == IW_MODE_ADHOC) { memcpy(&header.addr1, skb->data, 6); memcpy(&header.addr2, dev->dev_addr, 6); memcpy(&header.addr3, priv->BSSID, 6); } else { - frame_ctl |= IEEE802_11_FCTL_TODS; + frame_ctl |= IEEE80211_FCTL_TODS; memcpy(&header.addr1, priv->CurrentBSSID, 6); memcpy(&header.addr2, dev->dev_addr, 6); memcpy(&header.addr3, skb->data, 6); @@ -902,7 +902,7 @@ static int start_tx (struct sk_buff *skb, struct net_device *dev) } static void atmel_transmit_management_frame(struct atmel_private *priv, - struct ieee802_11_hdr *header, + struct ieee80211_hdr *header, u8 *body, int body_len) { u16 buff; @@ -917,7 +917,7 @@ static void atmel_transmit_management_frame(struct atmel_private *priv, tx_update_descriptor(priv, header->addr1[0] & 0x01, len, buff, TX_PACKET_TYPE_MGMT); } -static void fast_rx_path(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void fast_rx_path(struct atmel_private *priv, struct ieee80211_hdr *header, u16 msdu_size, u16 rx_packet_loc, u32 crc) { /* fast path: unfragmented packet copy directly into skbuf */ @@ -955,7 +955,7 @@ static void fast_rx_path(struct atmel_private *priv, struct ieee802_11_hdr *head } memcpy(skbp, header->addr1, 6); /* destination address */ - if (le16_to_cpu(header->frame_ctl) & IEEE802_11_FCTL_FROMDS) + if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) memcpy(&skbp[6], header->addr3, 6); else memcpy(&skbp[6], header->addr2, 6); /* source address */ @@ -990,14 +990,14 @@ static int probe_crc(struct atmel_private *priv, u16 packet_loc, u16 msdu_size) return (crc ^ 0xffffffff) == netcrc; } -static void frag_rx_path(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void frag_rx_path(struct atmel_private *priv, struct ieee80211_hdr *header, u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no, u8 frag_no, int more_frags) { u8 mac4[6]; u8 source[6]; struct sk_buff *skb; - if (le16_to_cpu(header->frame_ctl) & IEEE802_11_FCTL_FROMDS) + if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) memcpy(source, header->addr3, 6); else memcpy(source, header->addr2, 6); @@ -1082,7 +1082,7 @@ static void frag_rx_path(struct atmel_private *priv, struct ieee802_11_hdr *head static void rx_done_irq(struct atmel_private *priv) { int i; - struct ieee802_11_hdr header; + struct ieee80211_hdr header; for (i = 0; atmel_rmem8(priv, atmel_rx(priv, RX_DESC_FLAGS_OFFSET, priv->rx_desc_head)) == RX_DESC_FLAG_VALID && @@ -1117,7 +1117,7 @@ static void rx_done_irq(struct atmel_private *priv) /* probe for CRC use here if needed once five packets have arrived with the same crc status, we assume we know what's happening and stop probing */ if (priv->probe_crc) { - if (!priv->wep_is_on || !(frame_ctl & IEEE802_11_FCTL_WEP)) { + if (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_WEP)) { priv->do_rx_crc = probe_crc(priv, rx_packet_loc, msdu_size); } else { priv->do_rx_crc = probe_crc(priv, rx_packet_loc + 24, msdu_size - 24); @@ -1132,16 +1132,16 @@ static void rx_done_irq(struct atmel_private *priv) } /* don't CRC header when WEP in use */ - if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE802_11_FCTL_WEP))) { + if (priv->do_rx_crc && (!priv->wep_is_on || !(frame_ctl & IEEE80211_FCTL_WEP))) { crc = crc32_le(0xffffffff, (unsigned char *)&header, 24); } msdu_size -= 24; /* header */ - if ((frame_ctl & IEEE802_11_FCTL_FTYPE) == IEEE802_11_FTYPE_DATA) { + if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) { - int more_fragments = frame_ctl & IEEE802_11_FCTL_MOREFRAGS; - u8 packet_fragment_no = seq_control & IEEE802_11_SCTL_FRAG; - u16 packet_sequence_no = (seq_control & IEEE802_11_SCTL_SEQ) >> 4; + int more_fragments = frame_ctl & IEEE80211_FCTL_MOREFRAGS; + u8 packet_fragment_no = seq_control & IEEE80211_SCTL_FRAG; + u16 packet_sequence_no = (seq_control & IEEE80211_SCTL_SEQ) >> 4; if (!more_fragments && packet_fragment_no == 0 ) { fast_rx_path(priv, &header, msdu_size, rx_packet_loc, crc); @@ -1151,7 +1151,7 @@ static void rx_done_irq(struct atmel_private *priv) } } - if ((frame_ctl & IEEE802_11_FCTL_FTYPE) == IEEE802_11_FTYPE_MGMT) { + if ((frame_ctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { /* copy rest of packet into buffer */ atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size); @@ -2663,10 +2663,10 @@ static void handle_beacon_probe(struct atmel_private *priv, u16 capability, u8 c static void send_authentication_request(struct atmel_private *priv, u8 *challenge, int challenge_len) { - struct ieee802_11_hdr header; + struct ieee80211_hdr header; struct auth_body auth; - header.frame_ctl = cpu_to_le16(IEEE802_11_FTYPE_MGMT | IEEE802_11_STYPE_AUTH); + header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH); header.duration_id = cpu_to_le16(0x8000); header.seq_ctl = 0; memcpy(header.addr1, priv->CurrentBSSID, 6); @@ -2677,7 +2677,7 @@ static void send_authentication_request(struct atmel_private *priv, u8 *challeng auth.alg = cpu_to_le16(C80211_MGMT_AAN_SHAREDKEY); /* no WEP for authentication frames with TrSeqNo 1 */ if (priv->CurrentAuthentTransactionSeqNum != 1) - header.frame_ctl |= cpu_to_le16(IEEE802_11_FCTL_WEP); + header.frame_ctl |= cpu_to_le16(IEEE80211_FCTL_WEP); } else { auth.alg = cpu_to_le16(C80211_MGMT_AAN_OPENSYSTEM); } @@ -2701,7 +2701,7 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc) { u8 *ssid_el_p; int bodysize; - struct ieee802_11_hdr header; + struct ieee80211_hdr header; struct ass_req_format { u16 capability; u16 listen_interval; @@ -2714,8 +2714,8 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc) u8 rates[4]; } body; - header.frame_ctl = cpu_to_le16(IEEE802_11_FTYPE_MGMT | - (is_reassoc ? IEEE802_11_STYPE_REASSOC_REQ : IEEE802_11_STYPE_ASSOC_REQ)); + header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | + (is_reassoc ? IEEE80211_STYPE_REASSOC_REQ : IEEE80211_STYPE_ASSOC_REQ)); header.duration_id = cpu_to_le16(0x8000); header.seq_ctl = 0; @@ -2751,9 +2751,9 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc) atmel_transmit_management_frame(priv, &header, (void *)&body, bodysize); } -static int is_frame_from_current_bss(struct atmel_private *priv, struct ieee802_11_hdr *header) +static int is_frame_from_current_bss(struct atmel_private *priv, struct ieee80211_hdr *header) { - if (le16_to_cpu(header->frame_ctl) & IEEE802_11_FCTL_FROMDS) + if (le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_FROMDS) return memcmp(header->addr3, priv->CurrentBSSID, 6) == 0; else return memcmp(header->addr2, priv->CurrentBSSID, 6) == 0; @@ -2801,7 +2801,7 @@ static int retrieve_bss(struct atmel_private *priv) } -static void store_bss_info(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void store_bss_info(struct atmel_private *priv, struct ieee80211_hdr *header, u16 capability, u16 beacon_period, u8 channel, u8 rssi, u8 ssid_len, u8 *ssid, int is_beacon) { @@ -3085,12 +3085,12 @@ static void atmel_smooth_qual(struct atmel_private *priv) } /* deals with incoming managment frames. */ -static void atmel_management_frame(struct atmel_private *priv, struct ieee802_11_hdr *header, +static void atmel_management_frame(struct atmel_private *priv, struct ieee80211_hdr *header, u16 frame_len, u8 rssi) { u16 subtype; - switch (subtype = le16_to_cpu(header->frame_ctl) & IEEE802_11_FCTL_STYPE) { + switch (subtype = le16_to_cpu(header->frame_ctl) & IEEE80211_FCTL_STYPE) { case C80211_SUBTYPE_MGMT_BEACON : case C80211_SUBTYPE_MGMT_ProbeResponse: diff --git a/drivers/net/wireless/ieee802_11.h b/drivers/net/wireless/ieee802_11.h deleted file mode 100644 index 53dd524..0000000 --- a/drivers/net/wireless/ieee802_11.h +++ /dev/null @@ -1,78 +0,0 @@ -#ifndef _IEEE802_11_H -#define _IEEE802_11_H - -#define IEEE802_11_DATA_LEN 2304 -/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section - 6.2.1.1.2. - - The figure in section 7.1.2 suggests a body size of up to 2312 - bytes is allowed, which is a bit confusing, I suspect this - represents the 2304 bytes of real data, plus a possible 8 bytes of - WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ - - -#define IEEE802_11_HLEN 30 -#define IEEE802_11_FRAME_LEN (IEEE802_11_DATA_LEN + IEEE802_11_HLEN) - -struct ieee802_11_hdr { - u16 frame_ctl; - u16 duration_id; - u8 addr1[ETH_ALEN]; - u8 addr2[ETH_ALEN]; - u8 addr3[ETH_ALEN]; - u16 seq_ctl; - u8 addr4[ETH_ALEN]; -} __attribute__ ((packed)); - -/* Frame control field constants */ -#define IEEE802_11_FCTL_VERS 0x0002 -#define IEEE802_11_FCTL_FTYPE 0x000c -#define IEEE802_11_FCTL_STYPE 0x00f0 -#define IEEE802_11_FCTL_TODS 0x0100 -#define IEEE802_11_FCTL_FROMDS 0x0200 -#define IEEE802_11_FCTL_MOREFRAGS 0x0400 -#define IEEE802_11_FCTL_RETRY 0x0800 -#define IEEE802_11_FCTL_PM 0x1000 -#define IEEE802_11_FCTL_MOREDATA 0x2000 -#define IEEE802_11_FCTL_WEP 0x4000 -#define IEEE802_11_FCTL_ORDER 0x8000 - -#define IEEE802_11_FTYPE_MGMT 0x0000 -#define IEEE802_11_FTYPE_CTL 0x0004 -#define IEEE802_11_FTYPE_DATA 0x0008 - -/* management */ -#define IEEE802_11_STYPE_ASSOC_REQ 0x0000 -#define IEEE802_11_STYPE_ASSOC_RESP 0x0010 -#define IEEE802_11_STYPE_REASSOC_REQ 0x0020 -#define IEEE802_11_STYPE_REASSOC_RESP 0x0030 -#define IEEE802_11_STYPE_PROBE_REQ 0x0040 -#define IEEE802_11_STYPE_PROBE_RESP 0x0050 -#define IEEE802_11_STYPE_BEACON 0x0080 -#define IEEE802_11_STYPE_ATIM 0x0090 -#define IEEE802_11_STYPE_DISASSOC 0x00A0 -#define IEEE802_11_STYPE_AUTH 0x00B0 -#define IEEE802_11_STYPE_DEAUTH 0x00C0 - -/* control */ -#define IEEE802_11_STYPE_PSPOLL 0x00A0 -#define IEEE802_11_STYPE_RTS 0x00B0 -#define IEEE802_11_STYPE_CTS 0x00C0 -#define IEEE802_11_STYPE_ACK 0x00D0 -#define IEEE802_11_STYPE_CFEND 0x00E0 -#define IEEE802_11_STYPE_CFENDACK 0x00F0 - -/* data */ -#define IEEE802_11_STYPE_DATA 0x0000 -#define IEEE802_11_STYPE_DATA_CFACK 0x0010 -#define IEEE802_11_STYPE_DATA_CFPOLL 0x0020 -#define IEEE802_11_STYPE_DATA_CFACKPOLL 0x0030 -#define IEEE802_11_STYPE_NULLFUNC 0x0040 -#define IEEE802_11_STYPE_CFACK 0x0050 -#define IEEE802_11_STYPE_CFPOLL 0x0060 -#define IEEE802_11_STYPE_CFACKPOLL 0x0070 - -#define IEEE802_11_SCTL_FRAG 0x000F -#define IEEE802_11_SCTL_SEQ 0xFFF0 - -#endif /* _IEEE802_11_H */ diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c index a3a3243..b47684c 100644 --- a/drivers/net/wireless/orinoco.c +++ b/drivers/net/wireless/orinoco.c @@ -464,6 +464,8 @@ #include #include +#include + #include #include #include @@ -471,7 +473,6 @@ #include "hermes.h" #include "hermes_rid.h" #include "orinoco.h" -#include "ieee802_11.h" /********************************************************************/ /* Module information */ @@ -509,7 +510,7 @@ MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes"); /********************************************************************/ #define ORINOCO_MIN_MTU 256 -#define ORINOCO_MAX_MTU (IEEE802_11_DATA_LEN - ENCAPS_OVERHEAD) +#define ORINOCO_MAX_MTU (IEEE80211_DATA_LEN - ENCAPS_OVERHEAD) #define SYMBOL_MAX_VER_LEN (14) #define USER_BAP 0 @@ -760,7 +761,7 @@ static int orinoco_change_mtu(struct net_device *dev, int new_mtu) if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) ) return -EINVAL; - if ( (new_mtu + ENCAPS_OVERHEAD + IEEE802_11_HLEN) > + if ( (new_mtu + ENCAPS_OVERHEAD + IEEE80211_HLEN) > (priv->nicbuf_size - ETH_HLEN) ) return -EINVAL; @@ -1104,7 +1105,7 @@ static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw) stats->rx_dropped++; goto drop; } - if (length > IEEE802_11_DATA_LEN) { + if (length > IEEE80211_DATA_LEN) { printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n", dev->name, length); stats->rx_length_errors++; @@ -2264,7 +2265,7 @@ static int orinoco_init(struct net_device *dev) /* No need to lock, the hw_unavailable flag is already set in * alloc_orinocodev() */ - priv->nicbuf_size = IEEE802_11_FRAME_LEN + ETH_HLEN; + priv->nicbuf_size = IEEE80211_FRAME_LEN + ETH_HLEN; /* Initialize the firmware */ err = hermes_init(hw); diff --git a/drivers/net/wireless/wl3501.h b/drivers/net/wireless/wl3501.h index 8636d93..b571943 100644 --- a/drivers/net/wireless/wl3501.h +++ b/drivers/net/wireless/wl3501.h @@ -2,7 +2,7 @@ #define __WL3501_H__ #include -#include "ieee802_11.h" +#include /* define for WLA 2.0 */ #define WL3501_BLKSZ 256 @@ -548,7 +548,7 @@ struct wl3501_80211_tx_plcp_hdr { struct wl3501_80211_tx_hdr { struct wl3501_80211_tx_plcp_hdr pclp_hdr; - struct ieee802_11_hdr mac_hdr; + struct ieee80211_hdr mac_hdr; } __attribute__ ((packed)); /* diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h new file mode 100644 index 0000000..b1bfaf1 --- /dev/null +++ b/include/net/ieee80211.h @@ -0,0 +1,887 @@ +/* + * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11 + * remains copyright by the original authors + * + * Portions of the merged code are based on Host AP (software wireless + * LAN access point) driver for Intersil Prism2/2.5/3. + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2003, Jouni Malinen + * + * Adaption to a generic IEEE 802.11 stack by James Ketrenos + * + * Copyright (c) 2004, Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ +#ifndef IEEE80211_H +#define IEEE80211_H +#include /* ETH_ALEN */ +#include /* ARRAY_SIZE */ + +#if WIRELESS_EXT < 17 +#define IW_QUAL_QUAL_INVALID 0x10 +#define IW_QUAL_LEVEL_INVALID 0x20 +#define IW_QUAL_NOISE_INVALID 0x40 +#define IW_QUAL_QUAL_UPDATED 0x1 +#define IW_QUAL_LEVEL_UPDATED 0x2 +#define IW_QUAL_NOISE_UPDATED 0x4 +#endif + +#define IEEE80211_DATA_LEN 2304 +/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section + 6.2.1.1.2. + + The figure in section 7.1.2 suggests a body size of up to 2312 + bytes is allowed, which is a bit confusing, I suspect this + represents the 2304 bytes of real data, plus a possible 8 bytes of + WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ + + +#define IEEE80211_HLEN 30 +#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN) + +struct ieee80211_hdr { + u16 frame_ctl; + u16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 addr3[ETH_ALEN]; + u16 seq_ctl; + u8 addr4[ETH_ALEN]; +} __attribute__ ((packed)); + +struct ieee80211_hdr_3addr { + u16 frame_ctl; + u16 duration_id; + u8 addr1[ETH_ALEN]; + u8 addr2[ETH_ALEN]; + u8 addr3[ETH_ALEN]; + u16 seq_ctl; +} __attribute__ ((packed)); + +enum eap_type { + EAP_PACKET = 0, + EAPOL_START, + EAPOL_LOGOFF, + EAPOL_KEY, + EAPOL_ENCAP_ASF_ALERT +}; + +static const char *eap_types[] = { + [EAP_PACKET] = "EAP-Packet", + [EAPOL_START] = "EAPOL-Start", + [EAPOL_LOGOFF] = "EAPOL-Logoff", + [EAPOL_KEY] = "EAPOL-Key", + [EAPOL_ENCAP_ASF_ALERT] = "EAPOL-Encap-ASF-Alert" +}; + +static inline const char *eap_get_type(int type) +{ + return (type >= ARRAY_SIZE(eap_types)) ? "Unknown" : eap_types[type]; +} + +struct eapol { + u8 snap[6]; + u16 ethertype; + u8 version; + u8 type; + u16 length; +} __attribute__ ((packed)); + +#define IEEE80211_3ADDR_LEN 24 +#define IEEE80211_4ADDR_LEN 30 +#define IEEE80211_FCS_LEN 4 + +#define MIN_FRAG_THRESHOLD 256U +#define MAX_FRAG_THRESHOLD 2346U + +/* Frame control field constants */ +#define IEEE80211_FCTL_VERS 0x0002 +#define IEEE80211_FCTL_FTYPE 0x000c +#define IEEE80211_FCTL_STYPE 0x00f0 +#define IEEE80211_FCTL_TODS 0x0100 +#define IEEE80211_FCTL_FROMDS 0x0200 +#define IEEE80211_FCTL_MOREFRAGS 0x0400 +#define IEEE80211_FCTL_RETRY 0x0800 +#define IEEE80211_FCTL_PM 0x1000 +#define IEEE80211_FCTL_MOREDATA 0x2000 +#define IEEE80211_FCTL_WEP 0x4000 +#define IEEE80211_FCTL_ORDER 0x8000 + +#define IEEE80211_FTYPE_MGMT 0x0000 +#define IEEE80211_FTYPE_CTL 0x0004 +#define IEEE80211_FTYPE_DATA 0x0008 + +/* management */ +#define IEEE80211_STYPE_ASSOC_REQ 0x0000 +#define IEEE80211_STYPE_ASSOC_RESP 0x0010 +#define IEEE80211_STYPE_REASSOC_REQ 0x0020 +#define IEEE80211_STYPE_REASSOC_RESP 0x0030 +#define IEEE80211_STYPE_PROBE_REQ 0x0040 +#define IEEE80211_STYPE_PROBE_RESP 0x0050 +#define IEEE80211_STYPE_BEACON 0x0080 +#define IEEE80211_STYPE_ATIM 0x0090 +#define IEEE80211_STYPE_DISASSOC 0x00A0 +#define IEEE80211_STYPE_AUTH 0x00B0 +#define IEEE80211_STYPE_DEAUTH 0x00C0 + +/* control */ +#define IEEE80211_STYPE_PSPOLL 0x00A0 +#define IEEE80211_STYPE_RTS 0x00B0 +#define IEEE80211_STYPE_CTS 0x00C0 +#define IEEE80211_STYPE_ACK 0x00D0 +#define IEEE80211_STYPE_CFEND 0x00E0 +#define IEEE80211_STYPE_CFENDACK 0x00F0 + +/* data */ +#define IEEE80211_STYPE_DATA 0x0000 +#define IEEE80211_STYPE_DATA_CFACK 0x0010 +#define IEEE80211_STYPE_DATA_CFPOLL 0x0020 +#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 +#define IEEE80211_STYPE_NULLFUNC 0x0040 +#define IEEE80211_STYPE_CFACK 0x0050 +#define IEEE80211_STYPE_CFPOLL 0x0060 +#define IEEE80211_STYPE_CFACKPOLL 0x0070 + +#define IEEE80211_SCTL_FRAG 0x000F +#define IEEE80211_SCTL_SEQ 0xFFF0 + + +/* debug macros */ + +#ifdef CONFIG_IEEE80211_DEBUG +extern u32 ieee80211_debug_level; +#define IEEE80211_DEBUG(level, fmt, args...) \ +do { if (ieee80211_debug_level & (level)) \ + printk(KERN_DEBUG "ieee80211: %c %s " fmt, \ + in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0) +#else +#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0) +#endif /* CONFIG_IEEE80211_DEBUG */ + +/* + * To use the debug system; + * + * If you are defining a new debug classification, simply add it to the #define + * list here in the form of: + * + * #define IEEE80211_DL_xxxx VALUE + * + * shifting value to the left one bit from the previous entry. xxxx should be + * the name of the classification (for example, WEP) + * + * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your + * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want + * to send output to that classification. + * + * To add your debug level to the list of levels seen when you perform + * + * % cat /proc/net/ipw/debug_level + * + * you simply need to add your entry to the ipw_debug_levels array. + * + * If you do not see debug_level in /proc/net/ipw then you do not have + * CONFIG_IEEE80211_DEBUG defined in your kernel configuration + * + */ + +#define IEEE80211_DL_INFO (1<<0) +#define IEEE80211_DL_WX (1<<1) +#define IEEE80211_DL_SCAN (1<<2) +#define IEEE80211_DL_STATE (1<<3) +#define IEEE80211_DL_MGMT (1<<4) +#define IEEE80211_DL_FRAG (1<<5) +#define IEEE80211_DL_EAP (1<<6) +#define IEEE80211_DL_DROP (1<<7) + +#define IEEE80211_DL_TX (1<<8) +#define IEEE80211_DL_RX (1<<9) + +#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a) +#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a) +#define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a) + +#define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a) +#define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a) +#define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a) +#define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a) +#define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a) +#define IEEE80211_DEBUG_EAP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_EAP, f, ## a) +#define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a) +#define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a) +#define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a) +#include +#include +#include /* ARPHRD_ETHER */ + +#ifndef WIRELESS_SPY +#define WIRELESS_SPY // enable iwspy support +#endif +#include // new driver API + +#ifndef ETH_P_PAE +#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ +#endif /* ETH_P_PAE */ + +#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ + +#ifndef ETH_P_80211_RAW +#define ETH_P_80211_RAW (ETH_P_ECONET + 1) +#endif + +/* IEEE 802.11 defines */ + +#define P80211_OUI_LEN 3 + +struct ieee80211_snap_hdr { + + u8 dsap; /* always 0xAA */ + u8 ssap; /* always 0xAA */ + u8 ctrl; /* always 0x03 */ + u8 oui[P80211_OUI_LEN]; /* organizational universal id */ + +} __attribute__ ((packed)); + +#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr) + +#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE) +#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE) + +#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG) +#define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ) + +/* Authentication algorithms */ +#define WLAN_AUTH_OPEN 0 +#define WLAN_AUTH_SHARED_KEY 1 + +#define WLAN_AUTH_CHALLENGE_LEN 128 + +#define WLAN_CAPABILITY_BSS (1<<0) +#define WLAN_CAPABILITY_IBSS (1<<1) +#define WLAN_CAPABILITY_CF_POLLABLE (1<<2) +#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) +#define WLAN_CAPABILITY_PRIVACY (1<<4) +#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) +#define WLAN_CAPABILITY_PBCC (1<<6) +#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) + +/* Status codes */ +#define WLAN_STATUS_SUCCESS 0 +#define WLAN_STATUS_UNSPECIFIED_FAILURE 1 +#define WLAN_STATUS_CAPS_UNSUPPORTED 10 +#define WLAN_STATUS_REASSOC_NO_ASSOC 11 +#define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12 +#define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13 +#define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14 +#define WLAN_STATUS_CHALLENGE_FAIL 15 +#define WLAN_STATUS_AUTH_TIMEOUT 16 +#define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17 +#define WLAN_STATUS_ASSOC_DENIED_RATES 18 +/* 802.11b */ +#define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19 +#define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20 +#define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21 + +/* Reason codes */ +#define WLAN_REASON_UNSPECIFIED 1 +#define WLAN_REASON_PREV_AUTH_NOT_VALID 2 +#define WLAN_REASON_DEAUTH_LEAVING 3 +#define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4 +#define WLAN_REASON_DISASSOC_AP_BUSY 5 +#define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6 +#define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7 +#define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8 +#define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9 + + +/* Information Element IDs */ +#define WLAN_EID_SSID 0 +#define WLAN_EID_SUPP_RATES 1 +#define WLAN_EID_FH_PARAMS 2 +#define WLAN_EID_DS_PARAMS 3 +#define WLAN_EID_CF_PARAMS 4 +#define WLAN_EID_TIM 5 +#define WLAN_EID_IBSS_PARAMS 6 +#define WLAN_EID_CHALLENGE 16 +#define WLAN_EID_RSN 48 +#define WLAN_EID_GENERIC 221 + +#define IEEE80211_MGMT_HDR_LEN 24 +#define IEEE80211_DATA_HDR3_LEN 24 +#define IEEE80211_DATA_HDR4_LEN 30 + + +#define IEEE80211_STATMASK_SIGNAL (1<<0) +#define IEEE80211_STATMASK_RSSI (1<<1) +#define IEEE80211_STATMASK_NOISE (1<<2) +#define IEEE80211_STATMASK_RATE (1<<3) +#define IEEE80211_STATMASK_WEMASK 0x7 + + +#define IEEE80211_CCK_MODULATION (1<<0) +#define IEEE80211_OFDM_MODULATION (1<<1) + +#define IEEE80211_24GHZ_BAND (1<<0) +#define IEEE80211_52GHZ_BAND (1<<1) + +#define IEEE80211_CCK_RATE_1MB 0x02 +#define IEEE80211_CCK_RATE_2MB 0x04 +#define IEEE80211_CCK_RATE_5MB 0x0B +#define IEEE80211_CCK_RATE_11MB 0x16 +#define IEEE80211_OFDM_RATE_6MB 0x0C +#define IEEE80211_OFDM_RATE_9MB 0x12 +#define IEEE80211_OFDM_RATE_12MB 0x18 +#define IEEE80211_OFDM_RATE_18MB 0x24 +#define IEEE80211_OFDM_RATE_24MB 0x30 +#define IEEE80211_OFDM_RATE_36MB 0x48 +#define IEEE80211_OFDM_RATE_48MB 0x60 +#define IEEE80211_OFDM_RATE_54MB 0x6C +#define IEEE80211_BASIC_RATE_MASK 0x80 + +#define IEEE80211_CCK_RATE_1MB_MASK (1<<0) +#define IEEE80211_CCK_RATE_2MB_MASK (1<<1) +#define IEEE80211_CCK_RATE_5MB_MASK (1<<2) +#define IEEE80211_CCK_RATE_11MB_MASK (1<<3) +#define IEEE80211_OFDM_RATE_6MB_MASK (1<<4) +#define IEEE80211_OFDM_RATE_9MB_MASK (1<<5) +#define IEEE80211_OFDM_RATE_12MB_MASK (1<<6) +#define IEEE80211_OFDM_RATE_18MB_MASK (1<<7) +#define IEEE80211_OFDM_RATE_24MB_MASK (1<<8) +#define IEEE80211_OFDM_RATE_36MB_MASK (1<<9) +#define IEEE80211_OFDM_RATE_48MB_MASK (1<<10) +#define IEEE80211_OFDM_RATE_54MB_MASK (1<<11) + +#define IEEE80211_CCK_RATES_MASK 0x0000000F +#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \ + IEEE80211_CCK_RATE_2MB_MASK) +#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \ + IEEE80211_CCK_RATE_5MB_MASK | \ + IEEE80211_CCK_RATE_11MB_MASK) + +#define IEEE80211_OFDM_RATES_MASK 0x00000FF0 +#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \ + IEEE80211_OFDM_RATE_12MB_MASK | \ + IEEE80211_OFDM_RATE_24MB_MASK) +#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \ + IEEE80211_OFDM_RATE_9MB_MASK | \ + IEEE80211_OFDM_RATE_18MB_MASK | \ + IEEE80211_OFDM_RATE_36MB_MASK | \ + IEEE80211_OFDM_RATE_48MB_MASK | \ + IEEE80211_OFDM_RATE_54MB_MASK) +#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \ + IEEE80211_CCK_DEFAULT_RATES_MASK) + +#define IEEE80211_NUM_OFDM_RATES 8 +#define IEEE80211_NUM_CCK_RATES 4 +#define IEEE80211_OFDM_SHIFT_MASK_A 4 + + + + +/* NOTE: This data is for statistical purposes; not all hardware provides this + * information for frames received. Not setting these will not cause + * any adverse affects. */ +struct ieee80211_rx_stats { + u32 mac_time; + s8 rssi; + u8 signal; + u8 noise; + u16 rate; /* in 100 kbps */ + u8 received_channel; + u8 control; + u8 mask; + u8 freq; + u16 len; +}; + +/* IEEE 802.11 requires that STA supports concurrent reception of at least + * three fragmented frames. This define can be increased to support more + * concurrent frames, but it should be noted that each entry can consume about + * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ +#define IEEE80211_FRAG_CACHE_LEN 4 + +struct ieee80211_frag_entry { + unsigned long first_frag_time; + unsigned int seq; + unsigned int last_frag; + struct sk_buff *skb; + u8 src_addr[ETH_ALEN]; + u8 dst_addr[ETH_ALEN]; +}; + +struct ieee80211_stats { + unsigned int tx_unicast_frames; + unsigned int tx_multicast_frames; + unsigned int tx_fragments; + unsigned int tx_unicast_octets; + unsigned int tx_multicast_octets; + unsigned int tx_deferred_transmissions; + unsigned int tx_single_retry_frames; + unsigned int tx_multiple_retry_frames; + unsigned int tx_retry_limit_exceeded; + unsigned int tx_discards; + unsigned int rx_unicast_frames; + unsigned int rx_multicast_frames; + unsigned int rx_fragments; + unsigned int rx_unicast_octets; + unsigned int rx_multicast_octets; + unsigned int rx_fcs_errors; + unsigned int rx_discards_no_buffer; + unsigned int tx_discards_wrong_sa; + unsigned int rx_discards_undecryptable; + unsigned int rx_message_in_msg_fragments; + unsigned int rx_message_in_bad_msg_fragments; +}; + +struct ieee80211_device; + +#include "ieee80211_crypt.h" + +#define SEC_KEY_1 (1<<0) +#define SEC_KEY_2 (1<<1) +#define SEC_KEY_3 (1<<2) +#define SEC_KEY_4 (1<<3) +#define SEC_ACTIVE_KEY (1<<4) +#define SEC_AUTH_MODE (1<<5) +#define SEC_UNICAST_GROUP (1<<6) +#define SEC_LEVEL (1<<7) +#define SEC_ENABLED (1<<8) + +#define SEC_LEVEL_0 0 /* None */ +#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */ +#define SEC_LEVEL_2 2 /* Level 1 + TKIP */ +#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */ +#define SEC_LEVEL_3 4 /* Level 2 + CCMP */ + +#define WEP_KEYS 4 +#define WEP_KEY_LEN 13 + +struct ieee80211_security { + u16 active_key:2, + enabled:1, + auth_mode:2, + auth_algo:4, + unicast_uses_group:1; + u8 key_sizes[WEP_KEYS]; + u8 keys[WEP_KEYS][WEP_KEY_LEN]; + u8 level; + u16 flags; +} __attribute__ ((packed)); + + +/* + + 802.11 data frame from AP + + ,-------------------------------------------------------------------. +Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | + |------|------|---------|---------|---------|------|---------|------| +Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs | + | | tion | (BSSID) | | | ence | data | | + `-------------------------------------------------------------------' + +Total: 28-2340 bytes + +*/ + +struct ieee80211_header_data { + u16 frame_ctl; + u16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + u16 seq_ctrl; +}; + +#define BEACON_PROBE_SSID_ID_POSITION 12 + +/* Management Frame Information Element Types */ +#define MFIE_TYPE_SSID 0 +#define MFIE_TYPE_RATES 1 +#define MFIE_TYPE_FH_SET 2 +#define MFIE_TYPE_DS_SET 3 +#define MFIE_TYPE_CF_SET 4 +#define MFIE_TYPE_TIM 5 +#define MFIE_TYPE_IBSS_SET 6 +#define MFIE_TYPE_CHALLENGE 16 +#define MFIE_TYPE_RSN 48 +#define MFIE_TYPE_RATES_EX 50 +#define MFIE_TYPE_GENERIC 221 + +struct ieee80211_info_element_hdr { + u8 id; + u8 len; +} __attribute__ ((packed)); + +struct ieee80211_info_element { + u8 id; + u8 len; + u8 data[0]; +} __attribute__ ((packed)); + +/* + * These are the data types that can make up management packets + * + u16 auth_algorithm; + u16 auth_sequence; + u16 beacon_interval; + u16 capability; + u8 current_ap[ETH_ALEN]; + u16 listen_interval; + struct { + u16 association_id:14, reserved:2; + } __attribute__ ((packed)); + u32 time_stamp[2]; + u16 reason; + u16 status; +*/ + +struct ieee80211_authentication { + struct ieee80211_header_data header; + u16 algorithm; + u16 transaction; + u16 status; + struct ieee80211_info_element info_element; +} __attribute__ ((packed)); + + +struct ieee80211_probe_response { + struct ieee80211_header_data header; + u32 time_stamp[2]; + u16 beacon_interval; + u16 capability; + struct ieee80211_info_element info_element; +} __attribute__ ((packed)); + +struct ieee80211_assoc_request_frame { + u16 capability; + u16 listen_interval; + u8 current_ap[ETH_ALEN]; + struct ieee80211_info_element info_element; +} __attribute__ ((packed)); + +struct ieee80211_assoc_response_frame { + struct ieee80211_hdr_3addr header; + u16 capability; + u16 status; + u16 aid; + struct ieee80211_info_element info_element; /* supported rates */ +} __attribute__ ((packed)); + + +struct ieee80211_txb { + u8 nr_frags; + u8 encrypted; + u16 reserved; + u16 frag_size; + u16 payload_size; + struct sk_buff *fragments[0]; +}; + + +/* SWEEP TABLE ENTRIES NUMBER*/ +#define MAX_SWEEP_TAB_ENTRIES 42 +#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7 +/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs + * only use 8, and then use extended rates for the remaining supported + * rates. Other APs, however, stick all of their supported rates on the + * main rates information element... */ +#define MAX_RATES_LENGTH ((u8)12) +#define MAX_RATES_EX_LENGTH ((u8)16) +#define MAX_NETWORK_COUNT 128 + +#define CRC_LENGTH 4U + +#define MAX_WPA_IE_LEN 64 + +#define NETWORK_EMPTY_ESSID (1<<0) +#define NETWORK_HAS_OFDM (1<<1) +#define NETWORK_HAS_CCK (1<<2) + +struct ieee80211_network { + /* These entries are used to identify a unique network */ + u8 bssid[ETH_ALEN]; + u8 channel; + /* Ensure null-terminated for any debug msgs */ + u8 ssid[IW_ESSID_MAX_SIZE + 1]; + u8 ssid_len; + + /* These are network statistics */ + struct ieee80211_rx_stats stats; + u16 capability; + u8 rates[MAX_RATES_LENGTH]; + u8 rates_len; + u8 rates_ex[MAX_RATES_EX_LENGTH]; + u8 rates_ex_len; + unsigned long last_scanned; + u8 mode; + u8 flags; + u32 last_associate; + u32 time_stamp[2]; + u16 beacon_interval; + u16 listen_interval; + u16 atim_window; + u8 wpa_ie[MAX_WPA_IE_LEN]; + size_t wpa_ie_len; + u8 rsn_ie[MAX_WPA_IE_LEN]; + size_t rsn_ie_len; + struct list_head list; +}; + +enum ieee80211_state { + IEEE80211_UNINITIALIZED = 0, + IEEE80211_INITIALIZED, + IEEE80211_ASSOCIATING, + IEEE80211_ASSOCIATED, + IEEE80211_AUTHENTICATING, + IEEE80211_AUTHENTICATED, + IEEE80211_SHUTDOWN +}; + +#define DEFAULT_MAX_SCAN_AGE (15 * HZ) +#define DEFAULT_FTS 2346 +#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" +#define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5] + + +extern inline int is_multicast_ether_addr(const u8 *addr) +{ + return ((addr[0] != 0xff) && (0x01 & addr[0])); +} + +extern inline int is_broadcast_ether_addr(const u8 *addr) +{ + return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ + (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); +} + +#define CFG_IEEE80211_RESERVE_FCS (1<<0) +#define CFG_IEEE80211_COMPUTE_FCS (1<<1) + +struct ieee80211_device { + struct net_device *dev; + + /* Bookkeeping structures */ + struct net_device_stats stats; + struct ieee80211_stats ieee_stats; + + /* Probe / Beacon management */ + struct list_head network_free_list; + struct list_head network_list; + struct ieee80211_network *networks; + int scans; + int scan_age; + + int iw_mode; /* operating mode (IW_MODE_*) */ + + spinlock_t lock; + + int tx_headroom; /* Set to size of any additional room needed at front + * of allocated Tx SKBs */ + u32 config; + + /* WEP and other encryption related settings at the device level */ + int open_wep; /* Set to 1 to allow unencrypted frames */ + + int reset_on_keychange; /* Set to 1 if the HW needs to be reset on + * WEP key changes */ + + /* If the host performs {en,de}cryption, then set to 1 */ + int host_encrypt; + int host_decrypt; + int ieee802_1x; /* is IEEE 802.1X used */ + + /* WPA data */ + int wpa_enabled; + int drop_unencrypted; + int tkip_countermeasures; + int privacy_invoked; + size_t wpa_ie_len; + u8 *wpa_ie; + + struct list_head crypt_deinit_list; + struct ieee80211_crypt_data *crypt[WEP_KEYS]; + int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ + struct timer_list crypt_deinit_timer; + + int bcrx_sta_key; /* use individual keys to override default keys even + * with RX of broad/multicast frames */ + + /* Fragmentation structures */ + struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN]; + unsigned int frag_next_idx; + u16 fts; /* Fragmentation Threshold */ + + /* Association info */ + u8 bssid[ETH_ALEN]; + + enum ieee80211_state state; + + int mode; /* A, B, G */ + int modulation; /* CCK, OFDM */ + int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */ + int abg_ture; /* ABG flag */ + + /* Callback functions */ + void (*set_security)(struct net_device *dev, + struct ieee80211_security *sec); + int (*hard_start_xmit)(struct ieee80211_txb *txb, + struct net_device *dev); + int (*reset_port)(struct net_device *dev); + + /* This must be the last item so that it points to the data + * allocated beyond this structure by alloc_ieee80211 */ + u8 priv[0]; +}; + +#define IEEE_A (1<<0) +#define IEEE_B (1<<1) +#define IEEE_G (1<<2) +#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G) + +extern inline void *ieee80211_priv(struct net_device *dev) +{ + return ((struct ieee80211_device *)netdev_priv(dev))->priv; +} + +extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len) +{ + /* Single white space is for Linksys APs */ + if (essid_len == 1 && essid[0] == ' ') + return 1; + + /* Otherwise, if the entire essid is 0, we assume it is hidden */ + while (essid_len) { + essid_len--; + if (essid[essid_len] != '\0') + return 0; + } + + return 1; +} + +extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode) +{ + /* + * It is possible for both access points and our device to support + * combinations of modes, so as long as there is one valid combination + * of ap/device supported modes, then return success + * + */ + if ((mode & IEEE_A) && + (ieee->modulation & IEEE80211_OFDM_MODULATION) && + (ieee->freq_band & IEEE80211_52GHZ_BAND)) + return 1; + + if ((mode & IEEE_G) && + (ieee->modulation & IEEE80211_OFDM_MODULATION) && + (ieee->freq_band & IEEE80211_24GHZ_BAND)) + return 1; + + if ((mode & IEEE_B) && + (ieee->modulation & IEEE80211_CCK_MODULATION) && + (ieee->freq_band & IEEE80211_24GHZ_BAND)) + return 1; + + return 0; +} + +extern inline int ieee80211_get_hdrlen(u16 fc) +{ + int hdrlen = 24; + + switch (WLAN_FC_GET_TYPE(fc)) { + case IEEE80211_FTYPE_DATA: + if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) + hdrlen = 30; /* Addr4 */ + break; + case IEEE80211_FTYPE_CTL: + switch (WLAN_FC_GET_STYPE(fc)) { + case IEEE80211_STYPE_CTS: + case IEEE80211_STYPE_ACK: + hdrlen = 10; + break; + default: + hdrlen = 16; + break; + } + break; + } + + return hdrlen; +} + + + +/* ieee80211.c */ +extern void free_ieee80211(struct net_device *dev); +extern struct net_device *alloc_ieee80211(int sizeof_priv); + +extern int ieee80211_set_encryption(struct ieee80211_device *ieee); + +/* ieee80211_tx.c */ + + +extern int ieee80211_xmit(struct sk_buff *skb, + struct net_device *dev); +extern void ieee80211_txb_free(struct ieee80211_txb *); + + +/* ieee80211_rx.c */ +extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, + struct ieee80211_rx_stats *rx_stats); +extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, + struct ieee80211_hdr *header, + struct ieee80211_rx_stats *stats); + +/* iee80211_wx.c */ +extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key); +extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key); +extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *key); + + +extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee) +{ + ieee->scans++; +} + +extern inline int ieee80211_get_scans(struct ieee80211_device *ieee) +{ + return ieee->scans; +} + +static inline const char *escape_essid(const char *essid, u8 essid_len) { + static char escaped[IW_ESSID_MAX_SIZE * 2 + 1]; + const char *s = essid; + char *d = escaped; + + if (ieee80211_is_empty_essid(essid, essid_len)) { + memcpy(escaped, "", sizeof("")); + return escaped; + } + + essid_len = min(essid_len, (u8)IW_ESSID_MAX_SIZE); + while (essid_len--) { + if (*s == '\0') { + *d++ = '\\'; + *d++ = '0'; + s++; + } else { + *d++ = *s++; + } + } + *d = '\0'; + return escaped; +} +#endif /* IEEE80211_H */ diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h new file mode 100644 index 0000000..b58a3bc --- /dev/null +++ b/include/net/ieee80211_crypt.h @@ -0,0 +1,86 @@ +/* + * Original code based on Host AP (software wireless LAN access point) driver + * for Intersil Prism2/2.5/3. + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2003, Jouni Malinen + * + * Adaption to a generic IEEE 802.11 stack by James Ketrenos + * + * + * Copyright (c) 2004, Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +/* + * This file defines the interface to the ieee80211 crypto module. + */ +#ifndef IEEE80211_CRYPT_H +#define IEEE80211_CRYPT_H + +#include + +struct ieee80211_crypto_ops { + const char *name; + + /* init new crypto context (e.g., allocate private data space, + * select IV, etc.); returns NULL on failure or pointer to allocated + * private data on success */ + void * (*init)(int keyidx); + + /* deinitialize crypto context and free allocated private data */ + void (*deinit)(void *priv); + + /* encrypt/decrypt return < 0 on error or >= 0 on success. The return + * value from decrypt_mpdu is passed as the keyidx value for + * decrypt_msdu. skb must have enough head and tail room for the + * encryption; if not, error will be returned; these functions are + * called for all MPDUs (i.e., fragments). + */ + int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + + /* These functions are called for full MSDUs, i.e. full frames. + * These can be NULL if full MSDU operations are not needed. */ + int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv); + int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len, + void *priv); + + int (*set_key)(void *key, int len, u8 *seq, void *priv); + int (*get_key)(void *key, int len, u8 *seq, void *priv); + + /* procfs handler for printing out key information and possible + * statistics */ + char * (*print_stats)(char *p, void *priv); + + /* maximum number of bytes added by encryption; encrypt buf is + * allocated with extra_prefix_len bytes, copy of in_buf, and + * extra_postfix_len; encrypt need not use all this space, but + * the result must start at the beginning of the buffer and correct + * length must be returned */ + int extra_prefix_len, extra_postfix_len; + + struct module *owner; +}; + +struct ieee80211_crypt_data { + struct list_head list; /* delayed deletion list */ + struct ieee80211_crypto_ops *ops; + void *priv; + atomic_t refcnt; +}; + +int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops); +int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops); +struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name); +void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int); +void ieee80211_crypt_deinit_handler(unsigned long); +void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee, + struct ieee80211_crypt_data **crypt); + +#endif diff --git a/net/Kconfig b/net/Kconfig index 9251b28..8a12ea8 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -640,6 +640,8 @@ source "net/irda/Kconfig" source "net/bluetooth/Kconfig" +source "net/ieee80211/Kconfig" + source "drivers/net/Kconfig" endmenu diff --git a/net/Makefile b/net/Makefile index 8e2bdc0..83bc52d 100644 --- a/net/Makefile +++ b/net/Makefile @@ -42,6 +42,7 @@ obj-$(CONFIG_DECNET) += decnet/ obj-$(CONFIG_ECONET) += econet/ obj-$(CONFIG_VLAN_8021Q) += 8021q/ obj-$(CONFIG_IP_SCTP) += sctp/ +obj-$(CONFIG_IEEE80211) += ieee80211/ ifeq ($(CONFIG_NET),y) obj-$(CONFIG_SYSCTL) += sysctl_net.o diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig new file mode 100644 index 0000000..23b23f7 --- /dev/null +++ b/net/ieee80211/Kconfig @@ -0,0 +1,67 @@ +config IEEE80211 + tristate "Generic IEEE 802.11 Networking Stack" + select NET_RADIO + ---help--- + This option enables the hardware independent IEEE 802.11 + networking stack. + +config IEEE80211_DEBUG + bool "Enable full debugging output" + depends on IEEE80211 + ---help--- + This option will enable debug tracing output for the + ieee80211 network stack. + + This will result in the kernel module being ~70k larger. You + can control which debug output is sent to the kernel log by + setting the value in + + /proc/net/ieee80211/debug_level + + For example: + + % echo 0x00000FFO > /proc/net/ieee80211/debug_level + + For a list of values you can assign to debug_level, you + can look at the bit mask values in + + If you are not trying to debug or develop the ieee80211 + subsystem, you most likely want to say N here. + +config IEEE80211_CRYPT_WEP + tristate "IEEE 802.11 WEP encryption (802.1x)" + depends on IEEE80211 + select CRYPTO + select CRYPTO_ARC4 + select CRC32 + ---help--- + Include software based cipher suites in support of IEEE + 802.11's WEP. This is needed for WEP as well as 802.1x. + + This can be compiled as a modules and it will be called + "ieee80211_crypt_wep". + +config IEEE80211_CRYPT_CCMP + tristate "IEEE 802.11i CCMP support" + depends on IEEE80211 + select CRYPTO_AES + ---help--- + Include software based cipher suites in support of IEEE 802.11i + (aka TGi, WPA, WPA2, WPA-PSK, etc.) for use with CCMP enabled + networks. + + This can be compiled as a modules and it will be called + "ieee80211_crypt_ccmp". + +config IEEE80211_CRYPT_TKIP + tristate "IEEE 802.11i TKIP encryption" + depends on IEEE80211 + select CRYPTO_MICHAEL_MIC + ---help--- + Include software based cipher suites in support of IEEE 802.11i + (aka TGi, WPA, WPA2, WPA-PSK, etc.) for use with TKIP enabled + networks. + + This can be compiled as a modules and it will be called + "ieee80211_crypt_tkip". + diff --git a/net/ieee80211/Makefile b/net/ieee80211/Makefile new file mode 100644 index 0000000..29be9ca --- /dev/null +++ b/net/ieee80211/Makefile @@ -0,0 +1,11 @@ +obj-$(CONFIG_IEEE80211) += ieee80211.o +obj-$(CONFIG_IEEE80211) += ieee80211_crypt.o +obj-$(CONFIG_IEEE80211_CRYPT_WEP) += ieee80211_crypt_wep.o +obj-$(CONFIG_IEEE80211_CRYPT_CCMP) += ieee80211_crypt_ccmp.o +obj-$(CONFIG_IEEE80211_CRYPT_TKIP) += ieee80211_crypt_tkip.o +ieee80211-objs := \ + ieee80211_module.o \ + ieee80211_tx.o \ + ieee80211_rx.o \ + ieee80211_wx.o + diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c new file mode 100644 index 0000000..05a6f2f --- /dev/null +++ b/net/ieee80211/ieee80211_crypt.c @@ -0,0 +1,259 @@ +/* + * Host AP crypto routines + * + * Copyright (c) 2002-2003, Jouni Malinen + * Portions Copyright (C) 2004, Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("HostAP crypto"); +MODULE_LICENSE("GPL"); + +struct ieee80211_crypto_alg { + struct list_head list; + struct ieee80211_crypto_ops *ops; +}; + + +struct ieee80211_crypto { + struct list_head algs; + spinlock_t lock; +}; + +static struct ieee80211_crypto *hcrypt; + +void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, + int force) +{ + struct list_head *ptr, *n; + struct ieee80211_crypt_data *entry; + + for (ptr = ieee->crypt_deinit_list.next, n = ptr->next; + ptr != &ieee->crypt_deinit_list; ptr = n, n = ptr->next) { + entry = list_entry(ptr, struct ieee80211_crypt_data, list); + + if (atomic_read(&entry->refcnt) != 0 && !force) + continue; + + list_del(ptr); + + if (entry->ops) { + entry->ops->deinit(entry->priv); + module_put(entry->ops->owner); + } + kfree(entry); + } +} + +void ieee80211_crypt_deinit_handler(unsigned long data) +{ + struct ieee80211_device *ieee = (struct ieee80211_device *)data; + unsigned long flags; + + spin_lock_irqsave(&ieee->lock, flags); + ieee80211_crypt_deinit_entries(ieee, 0); + if (!list_empty(&ieee->crypt_deinit_list)) { + printk(KERN_DEBUG "%s: entries remaining in delayed crypt " + "deletion list\n", ieee->dev->name); + ieee->crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&ieee->crypt_deinit_timer); + } + spin_unlock_irqrestore(&ieee->lock, flags); + +} + +void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee, + struct ieee80211_crypt_data **crypt) +{ + struct ieee80211_crypt_data *tmp; + unsigned long flags; + + if (*crypt == NULL) + return; + + tmp = *crypt; + *crypt = NULL; + + /* must not run ops->deinit() while there may be pending encrypt or + * decrypt operations. Use a list of delayed deinits to avoid needing + * locking. */ + + spin_lock_irqsave(&ieee->lock, flags); + list_add(&tmp->list, &ieee->crypt_deinit_list); + if (!timer_pending(&ieee->crypt_deinit_timer)) { + ieee->crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&ieee->crypt_deinit_timer); + } + spin_unlock_irqrestore(&ieee->lock, flags); +} + +int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops) +{ + unsigned long flags; + struct ieee80211_crypto_alg *alg; + + if (hcrypt == NULL) + return -1; + + alg = kmalloc(sizeof(*alg), GFP_KERNEL); + if (alg == NULL) + return -ENOMEM; + + memset(alg, 0, sizeof(*alg)); + alg->ops = ops; + + spin_lock_irqsave(&hcrypt->lock, flags); + list_add(&alg->list, &hcrypt->algs); + spin_unlock_irqrestore(&hcrypt->lock, flags); + + printk(KERN_DEBUG "ieee80211_crypt: registered algorithm '%s'\n", + ops->name); + + return 0; +} + +int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops) +{ + unsigned long flags; + struct list_head *ptr; + struct ieee80211_crypto_alg *del_alg = NULL; + + if (hcrypt == NULL) + return -1; + + spin_lock_irqsave(&hcrypt->lock, flags); + for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { + struct ieee80211_crypto_alg *alg = + (struct ieee80211_crypto_alg *) ptr; + if (alg->ops == ops) { + list_del(&alg->list); + del_alg = alg; + break; + } + } + spin_unlock_irqrestore(&hcrypt->lock, flags); + + if (del_alg) { + printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm " + "'%s'\n", ops->name); + kfree(del_alg); + } + + return del_alg ? 0 : -1; +} + + +struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name) +{ + unsigned long flags; + struct list_head *ptr; + struct ieee80211_crypto_alg *found_alg = NULL; + + if (hcrypt == NULL) + return NULL; + + spin_lock_irqsave(&hcrypt->lock, flags); + for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { + struct ieee80211_crypto_alg *alg = + (struct ieee80211_crypto_alg *) ptr; + if (strcmp(alg->ops->name, name) == 0) { + found_alg = alg; + break; + } + } + spin_unlock_irqrestore(&hcrypt->lock, flags); + + if (found_alg) + return found_alg->ops; + else + return NULL; +} + + +static void * ieee80211_crypt_null_init(int keyidx) { return (void *) 1; } +static void ieee80211_crypt_null_deinit(void *priv) {} + +static struct ieee80211_crypto_ops ieee80211_crypt_null = { + .name = "NULL", + .init = ieee80211_crypt_null_init, + .deinit = ieee80211_crypt_null_deinit, + .encrypt_mpdu = NULL, + .decrypt_mpdu = NULL, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = NULL, + .get_key = NULL, + .extra_prefix_len = 0, + .extra_postfix_len = 0, + .owner = THIS_MODULE, +}; + + +static int __init ieee80211_crypto_init(void) +{ + int ret = -ENOMEM; + + hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL); + if (!hcrypt) + goto out; + + memset(hcrypt, 0, sizeof(*hcrypt)); + INIT_LIST_HEAD(&hcrypt->algs); + spin_lock_init(&hcrypt->lock); + + ret = ieee80211_register_crypto_ops(&ieee80211_crypt_null); + if (ret < 0) { + kfree(hcrypt); + hcrypt = NULL; + } +out: + return ret; +} + + +static void __exit ieee80211_crypto_deinit(void) +{ + struct list_head *ptr, *n; + + if (hcrypt == NULL) + return; + + for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs; + ptr = n, n = ptr->next) { + struct ieee80211_crypto_alg *alg = + (struct ieee80211_crypto_alg *) ptr; + list_del(ptr); + printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm " + "'%s' (deinit)\n", alg->ops->name); + kfree(alg); + } + + kfree(hcrypt); +} + +EXPORT_SYMBOL(ieee80211_crypt_deinit_entries); +EXPORT_SYMBOL(ieee80211_crypt_deinit_handler); +EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit); + +EXPORT_SYMBOL(ieee80211_register_crypto_ops); +EXPORT_SYMBOL(ieee80211_unregister_crypto_ops); +EXPORT_SYMBOL(ieee80211_get_crypto_ops); + +module_init(ieee80211_crypto_init); +module_exit(ieee80211_crypto_deinit); diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c new file mode 100644 index 0000000..f5f412a --- /dev/null +++ b/net/ieee80211/ieee80211_crypt_ccmp.c @@ -0,0 +1,470 @@ +/* + * Host AP crypt: host-based CCMP encryption implementation for Host AP driver + * + * Copyright (c) 2003-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: CCMP"); +MODULE_LICENSE("GPL"); + +#define AES_BLOCK_LEN 16 +#define CCMP_HDR_LEN 8 +#define CCMP_MIC_LEN 8 +#define CCMP_TK_LEN 16 +#define CCMP_PN_LEN 6 + +struct ieee80211_ccmp_data { + u8 key[CCMP_TK_LEN]; + int key_set; + + u8 tx_pn[CCMP_PN_LEN]; + u8 rx_pn[CCMP_PN_LEN]; + + u32 dot11RSNAStatsCCMPFormatErrors; + u32 dot11RSNAStatsCCMPReplays; + u32 dot11RSNAStatsCCMPDecryptErrors; + + int key_idx; + + struct crypto_tfm *tfm; + + /* scratch buffers for virt_to_page() (crypto API) */ + u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], + tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; + u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; +}; + +void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm, + const u8 pt[16], u8 ct[16]) +{ + struct scatterlist src, dst; + + src.page = virt_to_page(pt); + src.offset = offset_in_page(pt); + src.length = AES_BLOCK_LEN; + + dst.page = virt_to_page(ct); + dst.offset = offset_in_page(ct); + dst.length = AES_BLOCK_LEN; + + crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN); +} + +static void * ieee80211_ccmp_init(int key_idx) +{ + struct ieee80211_ccmp_data *priv; + + priv = kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) + goto fail; + memset(priv, 0, sizeof(*priv)); + priv->key_idx = key_idx; + + priv->tfm = crypto_alloc_tfm("aes", 0); + if (priv->tfm == NULL) { + printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate " + "crypto API aes\n"); + goto fail; + } + + return priv; + +fail: + if (priv) { + if (priv->tfm) + crypto_free_tfm(priv->tfm); + kfree(priv); + } + + return NULL; +} + + +static void ieee80211_ccmp_deinit(void *priv) +{ + struct ieee80211_ccmp_data *_priv = priv; + if (_priv && _priv->tfm) + crypto_free_tfm(_priv->tfm); + kfree(priv); +} + + +static inline void xor_block(u8 *b, u8 *a, size_t len) +{ + int i; + for (i = 0; i < len; i++) + b[i] ^= a[i]; +} + + +static void ccmp_init_blocks(struct crypto_tfm *tfm, + struct ieee80211_hdr *hdr, + u8 *pn, size_t dlen, u8 *b0, u8 *auth, + u8 *s0) +{ + u8 *pos, qc = 0; + size_t aad_len; + u16 fc; + int a4_included, qc_included; + u8 aad[2 * AES_BLOCK_LEN]; + + fc = le16_to_cpu(hdr->frame_ctl); + a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)); + qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) && + (WLAN_FC_GET_STYPE(fc) & 0x08)); + aad_len = 22; + if (a4_included) + aad_len += 6; + if (qc_included) { + pos = (u8 *) &hdr->addr4; + if (a4_included) + pos += 6; + qc = *pos & 0x0f; + aad_len += 2; + } + + /* CCM Initial Block: + * Flag (Include authentication header, M=3 (8-octet MIC), + * L=1 (2-octet Dlen)) + * Nonce: 0x00 | A2 | PN + * Dlen */ + b0[0] = 0x59; + b0[1] = qc; + memcpy(b0 + 2, hdr->addr2, ETH_ALEN); + memcpy(b0 + 8, pn, CCMP_PN_LEN); + b0[14] = (dlen >> 8) & 0xff; + b0[15] = dlen & 0xff; + + /* AAD: + * FC with bits 4..6 and 11..13 masked to zero; 14 is always one + * A1 | A2 | A3 + * SC with bits 4..15 (seq#) masked to zero + * A4 (if present) + * QC (if present) + */ + pos = (u8 *) hdr; + aad[0] = 0; /* aad_len >> 8 */ + aad[1] = aad_len & 0xff; + aad[2] = pos[0] & 0x8f; + aad[3] = pos[1] & 0xc7; + memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); + pos = (u8 *) &hdr->seq_ctl; + aad[22] = pos[0] & 0x0f; + aad[23] = 0; /* all bits masked */ + memset(aad + 24, 0, 8); + if (a4_included) + memcpy(aad + 24, hdr->addr4, ETH_ALEN); + if (qc_included) { + aad[a4_included ? 30 : 24] = qc; + /* rest of QC masked */ + } + + /* Start with the first block and AAD */ + ieee80211_ccmp_aes_encrypt(tfm, b0, auth); + xor_block(auth, aad, AES_BLOCK_LEN); + ieee80211_ccmp_aes_encrypt(tfm, auth, auth); + xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); + ieee80211_ccmp_aes_encrypt(tfm, auth, auth); + b0[0] &= 0x07; + b0[14] = b0[15] = 0; + ieee80211_ccmp_aes_encrypt(tfm, b0, s0); +} + + +static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct ieee80211_ccmp_data *key = priv; + int data_len, i, blocks, last, len; + u8 *pos, *mic; + struct ieee80211_hdr *hdr; + u8 *b0 = key->tx_b0; + u8 *b = key->tx_b; + u8 *e = key->tx_e; + u8 *s0 = key->tx_s0; + + if (skb_headroom(skb) < CCMP_HDR_LEN || + skb_tailroom(skb) < CCMP_MIC_LEN || + skb->len < hdr_len) + return -1; + + data_len = skb->len - hdr_len; + pos = skb_push(skb, CCMP_HDR_LEN); + memmove(pos, pos + CCMP_HDR_LEN, hdr_len); + pos += hdr_len; + mic = skb_put(skb, CCMP_MIC_LEN); + + i = CCMP_PN_LEN - 1; + while (i >= 0) { + key->tx_pn[i]++; + if (key->tx_pn[i] != 0) + break; + i--; + } + + *pos++ = key->tx_pn[5]; + *pos++ = key->tx_pn[4]; + *pos++ = 0; + *pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */; + *pos++ = key->tx_pn[3]; + *pos++ = key->tx_pn[2]; + *pos++ = key->tx_pn[1]; + *pos++ = key->tx_pn[0]; + + hdr = (struct ieee80211_hdr *) skb->data; + ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); + + blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + last = data_len % AES_BLOCK_LEN; + + for (i = 1; i <= blocks; i++) { + len = (i == blocks && last) ? last : AES_BLOCK_LEN; + /* Authentication */ + xor_block(b, pos, len); + ieee80211_ccmp_aes_encrypt(key->tfm, b, b); + /* Encryption, with counter */ + b0[14] = (i >> 8) & 0xff; + b0[15] = i & 0xff; + ieee80211_ccmp_aes_encrypt(key->tfm, b0, e); + xor_block(pos, e, len); + pos += len; + } + + for (i = 0; i < CCMP_MIC_LEN; i++) + mic[i] = b[i] ^ s0[i]; + + return 0; +} + + +static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct ieee80211_ccmp_data *key = priv; + u8 keyidx, *pos; + struct ieee80211_hdr *hdr; + u8 *b0 = key->rx_b0; + u8 *b = key->rx_b; + u8 *a = key->rx_a; + u8 pn[6]; + int i, blocks, last, len; + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; + u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; + + if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) { + key->dot11RSNAStatsCCMPFormatErrors++; + return -1; + } + + hdr = (struct ieee80211_hdr *) skb->data; + pos = skb->data + hdr_len; + keyidx = pos[3]; + if (!(keyidx & (1 << 5))) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: received packet without ExtIV" + " flag from " MAC_FMT "\n", MAC_ARG(hdr->addr2)); + } + key->dot11RSNAStatsCCMPFormatErrors++; + return -2; + } + keyidx >>= 6; + if (key->key_idx != keyidx) { + printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame " + "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv); + return -6; + } + if (!key->key_set) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: received packet from " MAC_FMT + " with keyid=%d that does not have a configured" + " key\n", MAC_ARG(hdr->addr2), keyidx); + } + return -3; + } + + pn[0] = pos[7]; + pn[1] = pos[6]; + pn[2] = pos[5]; + pn[3] = pos[4]; + pn[4] = pos[1]; + pn[5] = pos[0]; + pos += 8; + + if (memcmp(pn, key->rx_pn, CCMP_PN_LEN) <= 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: replay detected: STA=" MAC_FMT + " previous PN %02x%02x%02x%02x%02x%02x " + "received PN %02x%02x%02x%02x%02x%02x\n", + MAC_ARG(hdr->addr2), MAC_ARG(key->rx_pn), + MAC_ARG(pn)); + } + key->dot11RSNAStatsCCMPReplays++; + return -4; + } + + ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); + xor_block(mic, b, CCMP_MIC_LEN); + + blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + last = data_len % AES_BLOCK_LEN; + + for (i = 1; i <= blocks; i++) { + len = (i == blocks && last) ? last : AES_BLOCK_LEN; + /* Decrypt, with counter */ + b0[14] = (i >> 8) & 0xff; + b0[15] = i & 0xff; + ieee80211_ccmp_aes_encrypt(key->tfm, b0, b); + xor_block(pos, b, len); + /* Authentication */ + xor_block(a, pos, len); + ieee80211_ccmp_aes_encrypt(key->tfm, a, a); + pos += len; + } + + if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: decrypt failed: STA=" + MAC_FMT "\n", MAC_ARG(hdr->addr2)); + } + key->dot11RSNAStatsCCMPDecryptErrors++; + return -5; + } + + memcpy(key->rx_pn, pn, CCMP_PN_LEN); + + /* Remove hdr and MIC */ + memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len); + skb_pull(skb, CCMP_HDR_LEN); + skb_trim(skb, skb->len - CCMP_MIC_LEN); + + return keyidx; +} + + +static int ieee80211_ccmp_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct ieee80211_ccmp_data *data = priv; + int keyidx; + struct crypto_tfm *tfm = data->tfm; + + keyidx = data->key_idx; + memset(data, 0, sizeof(*data)); + data->key_idx = keyidx; + data->tfm = tfm; + if (len == CCMP_TK_LEN) { + memcpy(data->key, key, CCMP_TK_LEN); + data->key_set = 1; + if (seq) { + data->rx_pn[0] = seq[5]; + data->rx_pn[1] = seq[4]; + data->rx_pn[2] = seq[3]; + data->rx_pn[3] = seq[2]; + data->rx_pn[4] = seq[1]; + data->rx_pn[5] = seq[0]; + } + crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN); + } else if (len == 0) + data->key_set = 0; + else + return -1; + + return 0; +} + + +static int ieee80211_ccmp_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct ieee80211_ccmp_data *data = priv; + + if (len < CCMP_TK_LEN) + return -1; + + if (!data->key_set) + return 0; + memcpy(key, data->key, CCMP_TK_LEN); + + if (seq) { + seq[0] = data->tx_pn[5]; + seq[1] = data->tx_pn[4]; + seq[2] = data->tx_pn[3]; + seq[3] = data->tx_pn[2]; + seq[4] = data->tx_pn[1]; + seq[5] = data->tx_pn[0]; + } + + return CCMP_TK_LEN; +} + + +static char * ieee80211_ccmp_print_stats(char *p, void *priv) +{ + struct ieee80211_ccmp_data *ccmp = priv; + p += sprintf(p, "key[%d] alg=CCMP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "format_errors=%d replays=%d decrypt_errors=%d\n", + ccmp->key_idx, ccmp->key_set, + MAC_ARG(ccmp->tx_pn), MAC_ARG(ccmp->rx_pn), + ccmp->dot11RSNAStatsCCMPFormatErrors, + ccmp->dot11RSNAStatsCCMPReplays, + ccmp->dot11RSNAStatsCCMPDecryptErrors); + + return p; +} + + +static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = { + .name = "CCMP", + .init = ieee80211_ccmp_init, + .deinit = ieee80211_ccmp_deinit, + .encrypt_mpdu = ieee80211_ccmp_encrypt, + .decrypt_mpdu = ieee80211_ccmp_decrypt, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = ieee80211_ccmp_set_key, + .get_key = ieee80211_ccmp_get_key, + .print_stats = ieee80211_ccmp_print_stats, + .extra_prefix_len = CCMP_HDR_LEN, + .extra_postfix_len = CCMP_MIC_LEN, + .owner = THIS_MODULE, +}; + + +static int __init ieee80211_crypto_ccmp_init(void) +{ + return ieee80211_register_crypto_ops(&ieee80211_crypt_ccmp); +} + + +static void __exit ieee80211_crypto_ccmp_exit(void) +{ + ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp); +} + + +module_init(ieee80211_crypto_ccmp_init); +module_exit(ieee80211_crypto_ccmp_exit); diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c new file mode 100644 index 0000000..f91d92c --- /dev/null +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -0,0 +1,708 @@ +/* + * Host AP crypt: host-based TKIP encryption implementation for Host AP driver + * + * Copyright (c) 2003-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +#include +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: TKIP"); +MODULE_LICENSE("GPL"); + +struct ieee80211_tkip_data { +#define TKIP_KEY_LEN 32 + u8 key[TKIP_KEY_LEN]; + int key_set; + + u32 tx_iv32; + u16 tx_iv16; + u16 tx_ttak[5]; + int tx_phase1_done; + + u32 rx_iv32; + u16 rx_iv16; + u16 rx_ttak[5]; + int rx_phase1_done; + u32 rx_iv32_new; + u16 rx_iv16_new; + + u32 dot11RSNAStatsTKIPReplays; + u32 dot11RSNAStatsTKIPICVErrors; + u32 dot11RSNAStatsTKIPLocalMICFailures; + + int key_idx; + + struct crypto_tfm *tfm_arc4; + struct crypto_tfm *tfm_michael; + + /* scratch buffers for virt_to_page() (crypto API) */ + u8 rx_hdr[16], tx_hdr[16]; +}; + +static void * ieee80211_tkip_init(int key_idx) +{ + struct ieee80211_tkip_data *priv; + + priv = kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) + goto fail; + memset(priv, 0, sizeof(*priv)); + priv->key_idx = key_idx; + + priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0); + if (priv->tfm_arc4 == NULL) { + printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " + "crypto API arc4\n"); + goto fail; + } + + priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0); + if (priv->tfm_michael == NULL) { + printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " + "crypto API michael_mic\n"); + goto fail; + } + + return priv; + +fail: + if (priv) { + if (priv->tfm_michael) + crypto_free_tfm(priv->tfm_michael); + if (priv->tfm_arc4) + crypto_free_tfm(priv->tfm_arc4); + kfree(priv); + } + + return NULL; +} + + +static void ieee80211_tkip_deinit(void *priv) +{ + struct ieee80211_tkip_data *_priv = priv; + if (_priv && _priv->tfm_michael) + crypto_free_tfm(_priv->tfm_michael); + if (_priv && _priv->tfm_arc4) + crypto_free_tfm(_priv->tfm_arc4); + kfree(priv); +} + + +static inline u16 RotR1(u16 val) +{ + return (val >> 1) | (val << 15); +} + + +static inline u8 Lo8(u16 val) +{ + return val & 0xff; +} + + +static inline u8 Hi8(u16 val) +{ + return val >> 8; +} + + +static inline u16 Lo16(u32 val) +{ + return val & 0xffff; +} + + +static inline u16 Hi16(u32 val) +{ + return val >> 16; +} + + +static inline u16 Mk16(u8 hi, u8 lo) +{ + return lo | (((u16) hi) << 8); +} + + +static inline u16 Mk16_le(u16 *v) +{ + return le16_to_cpu(*v); +} + + +static const u16 Sbox[256] = +{ + 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154, + 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A, + 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B, + 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B, + 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F, + 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F, + 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5, + 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F, + 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB, + 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397, + 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED, + 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A, + 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194, + 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3, + 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104, + 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D, + 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39, + 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695, + 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83, + 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76, + 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4, + 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B, + 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0, + 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018, + 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751, + 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85, + 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12, + 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9, + 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7, + 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A, + 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8, + 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A, +}; + + +static inline u16 _S_(u16 v) +{ + u16 t = Sbox[Hi8(v)]; + return Sbox[Lo8(v)] ^ ((t << 8) | (t >> 8)); +} + + +#define PHASE1_LOOP_COUNT 8 + +static void tkip_mixing_phase1(u16 *TTAK, const u8 *TK, const u8 *TA, u32 IV32) +{ + int i, j; + + /* Initialize the 80-bit TTAK from TSC (IV32) and TA[0..5] */ + TTAK[0] = Lo16(IV32); + TTAK[1] = Hi16(IV32); + TTAK[2] = Mk16(TA[1], TA[0]); + TTAK[3] = Mk16(TA[3], TA[2]); + TTAK[4] = Mk16(TA[5], TA[4]); + + for (i = 0; i < PHASE1_LOOP_COUNT; i++) { + j = 2 * (i & 1); + TTAK[0] += _S_(TTAK[4] ^ Mk16(TK[1 + j], TK[0 + j])); + TTAK[1] += _S_(TTAK[0] ^ Mk16(TK[5 + j], TK[4 + j])); + TTAK[2] += _S_(TTAK[1] ^ Mk16(TK[9 + j], TK[8 + j])); + TTAK[3] += _S_(TTAK[2] ^ Mk16(TK[13 + j], TK[12 + j])); + TTAK[4] += _S_(TTAK[3] ^ Mk16(TK[1 + j], TK[0 + j])) + i; + } +} + + +static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, + u16 IV16) +{ + /* Make temporary area overlap WEP seed so that the final copy can be + * avoided on little endian hosts. */ + u16 *PPK = (u16 *) &WEPSeed[4]; + + /* Step 1 - make copy of TTAK and bring in TSC */ + PPK[0] = TTAK[0]; + PPK[1] = TTAK[1]; + PPK[2] = TTAK[2]; + PPK[3] = TTAK[3]; + PPK[4] = TTAK[4]; + PPK[5] = TTAK[4] + IV16; + + /* Step 2 - 96-bit bijective mixing using S-box */ + PPK[0] += _S_(PPK[5] ^ Mk16_le((u16 *) &TK[0])); + PPK[1] += _S_(PPK[0] ^ Mk16_le((u16 *) &TK[2])); + PPK[2] += _S_(PPK[1] ^ Mk16_le((u16 *) &TK[4])); + PPK[3] += _S_(PPK[2] ^ Mk16_le((u16 *) &TK[6])); + PPK[4] += _S_(PPK[3] ^ Mk16_le((u16 *) &TK[8])); + PPK[5] += _S_(PPK[4] ^ Mk16_le((u16 *) &TK[10])); + + PPK[0] += RotR1(PPK[5] ^ Mk16_le((u16 *) &TK[12])); + PPK[1] += RotR1(PPK[0] ^ Mk16_le((u16 *) &TK[14])); + PPK[2] += RotR1(PPK[1]); + PPK[3] += RotR1(PPK[2]); + PPK[4] += RotR1(PPK[3]); + PPK[5] += RotR1(PPK[4]); + + /* Step 3 - bring in last of TK bits, assign 24-bit WEP IV value + * WEPSeed[0..2] is transmitted as WEP IV */ + WEPSeed[0] = Hi8(IV16); + WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F; + WEPSeed[2] = Lo8(IV16); + WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((u16 *) &TK[0])) >> 1); + +#ifdef __BIG_ENDIAN + { + int i; + for (i = 0; i < 6; i++) + PPK[i] = (PPK[i] << 8) | (PPK[i] >> 8); + } +#endif +} + +static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + int len; + u8 rc4key[16], *pos, *icv; + struct ieee80211_hdr *hdr; + u32 crc; + struct scatterlist sg; + + if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 || + skb->len < hdr_len) + return -1; + + hdr = (struct ieee80211_hdr *) skb->data; + if (!tkey->tx_phase1_done) { + tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2, + tkey->tx_iv32); + tkey->tx_phase1_done = 1; + } + tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16); + + len = skb->len - hdr_len; + pos = skb_push(skb, 8); + memmove(pos, pos + 8, hdr_len); + pos += hdr_len; + icv = skb_put(skb, 4); + + *pos++ = rc4key[0]; + *pos++ = rc4key[1]; + *pos++ = rc4key[2]; + *pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */; + *pos++ = tkey->tx_iv32 & 0xff; + *pos++ = (tkey->tx_iv32 >> 8) & 0xff; + *pos++ = (tkey->tx_iv32 >> 16) & 0xff; + *pos++ = (tkey->tx_iv32 >> 24) & 0xff; + + crc = ~crc32_le(~0, pos, len); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + + crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = len + 4; + crypto_cipher_encrypt(tkey->tfm_arc4, &sg, &sg, len + 4); + + tkey->tx_iv16++; + if (tkey->tx_iv16 == 0) { + tkey->tx_phase1_done = 0; + tkey->tx_iv32++; + } + + return 0; +} + +static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + u8 rc4key[16]; + u8 keyidx, *pos; + u32 iv32; + u16 iv16; + struct ieee80211_hdr *hdr; + u8 icv[4]; + u32 crc; + struct scatterlist sg; + int plen; + + if (skb->len < hdr_len + 8 + 4) + return -1; + + hdr = (struct ieee80211_hdr *) skb->data; + pos = skb->data + hdr_len; + keyidx = pos[3]; + if (!(keyidx & (1 << 5))) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: received packet without ExtIV" + " flag from " MAC_FMT "\n", MAC_ARG(hdr->addr2)); + } + return -2; + } + keyidx >>= 6; + if (tkey->key_idx != keyidx) { + printk(KERN_DEBUG "TKIP: RX tkey->key_idx=%d frame " + "keyidx=%d priv=%p\n", tkey->key_idx, keyidx, priv); + return -6; + } + if (!tkey->key_set) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: received packet from " MAC_FMT + " with keyid=%d that does not have a configured" + " key\n", MAC_ARG(hdr->addr2), keyidx); + } + return -3; + } + iv16 = (pos[0] << 8) | pos[2]; + iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24); + pos += 8; + + if (iv32 < tkey->rx_iv32 || + (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: replay detected: STA=" MAC_FMT + " previous TSC %08x%04x received TSC " + "%08x%04x\n", MAC_ARG(hdr->addr2), + tkey->rx_iv32, tkey->rx_iv16, iv32, iv16); + } + tkey->dot11RSNAStatsTKIPReplays++; + return -4; + } + + if (iv32 != tkey->rx_iv32 || !tkey->rx_phase1_done) { + tkip_mixing_phase1(tkey->rx_ttak, tkey->key, hdr->addr2, iv32); + tkey->rx_phase1_done = 1; + } + tkip_mixing_phase2(rc4key, tkey->key, tkey->rx_ttak, iv16); + + plen = skb->len - hdr_len - 12; + + crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = plen + 4; + crypto_cipher_decrypt(tkey->tfm_arc4, &sg, &sg, plen + 4); + + crc = ~crc32_le(~0, pos, plen); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + if (memcmp(icv, pos + plen, 4) != 0) { + if (iv32 != tkey->rx_iv32) { + /* Previously cached Phase1 result was already lost, so + * it needs to be recalculated for the next packet. */ + tkey->rx_phase1_done = 0; + } + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: ICV error detected: STA=" + MAC_FMT "\n", MAC_ARG(hdr->addr2)); + } + tkey->dot11RSNAStatsTKIPICVErrors++; + return -5; + } + + /* Update real counters only after Michael MIC verification has + * completed */ + tkey->rx_iv32_new = iv32; + tkey->rx_iv16_new = iv16; + + /* Remove IV and ICV */ + memmove(skb->data + 8, skb->data, hdr_len); + skb_pull(skb, 8); + skb_trim(skb, skb->len - 4); + + return keyidx; +} + + +static int michael_mic(struct ieee80211_tkip_data *tkey, u8 *key, u8 *hdr, + u8 *data, size_t data_len, u8 *mic) +{ + struct scatterlist sg[2]; + + if (tkey->tfm_michael == NULL) { + printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n"); + return -1; + } + sg[0].page = virt_to_page(hdr); + sg[0].offset = offset_in_page(hdr); + sg[0].length = 16; + + sg[1].page = virt_to_page(data); + sg[1].offset = offset_in_page(data); + sg[1].length = data_len; + + crypto_digest_init(tkey->tfm_michael); + crypto_digest_setkey(tkey->tfm_michael, key, 8); + crypto_digest_update(tkey->tfm_michael, sg, 2); + crypto_digest_final(tkey->tfm_michael, mic); + + return 0; +} + +static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr) +{ + struct ieee80211_hdr *hdr11; + + hdr11 = (struct ieee80211_hdr *) skb->data; + switch (le16_to_cpu(hdr11->frame_ctl) & + (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { + case IEEE80211_FCTL_TODS: + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + break; + case IEEE80211_FCTL_FROMDS: + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr3, ETH_ALEN); /* SA */ + break; + case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr4, ETH_ALEN); /* SA */ + break; + case 0: + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + break; + } + + hdr[12] = 0; /* priority */ + hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */ +} + + +static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + u8 *pos; + + if (skb_tailroom(skb) < 8 || skb->len < hdr_len) { + printk(KERN_DEBUG "Invalid packet for Michael MIC add " + "(tailroom=%d hdr_len=%d skb->len=%d)\n", + skb_tailroom(skb), hdr_len, skb->len); + return -1; + } + + michael_mic_hdr(skb, tkey->tx_hdr); + pos = skb_put(skb, 8); + if (michael_mic(tkey, &tkey->key[16], tkey->tx_hdr, + skb->data + hdr_len, skb->len - 8 - hdr_len, pos)) + return -1; + + return 0; +} + + +#if WIRELESS_EXT >= 18 +static void ieee80211_michael_mic_failure(struct net_device *dev, + struct ieee80211_hdr *hdr, + int keyidx) +{ + union iwreq_data wrqu; + struct iw_michaelmicfailure ev; + + /* TODO: needed parameters: count, keyid, key type, TSC */ + memset(&ev, 0, sizeof(ev)); + ev.flags = keyidx & IW_MICFAILURE_KEY_ID; + if (hdr->addr1[0] & 0x01) + ev.flags |= IW_MICFAILURE_GROUP; + else + ev.flags |= IW_MICFAILURE_PAIRWISE; + ev.src_addr.sa_family = ARPHRD_ETHER; + memcpy(ev.src_addr.sa_data, hdr->addr2, ETH_ALEN); + memset(&wrqu, 0, sizeof(wrqu)); + wrqu.data.length = sizeof(ev); + wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &ev); +} +#elif WIRELESS_EXT >= 15 +static void ieee80211_michael_mic_failure(struct net_device *dev, + struct ieee80211_hdr *hdr, + int keyidx) +{ + union iwreq_data wrqu; + char buf[128]; + + /* TODO: needed parameters: count, keyid, key type, TSC */ + sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr=" + MAC_FMT ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", + MAC_ARG(hdr->addr2)); + memset(&wrqu, 0, sizeof(wrqu)); + wrqu.data.length = strlen(buf); + wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); +} +#else /* WIRELESS_EXT >= 15 */ +static inline void ieee80211_michael_mic_failure(struct net_device *dev, + struct ieee80211_hdr *hdr, + int keyidx) +{ +} +#endif /* WIRELESS_EXT >= 15 */ + + +static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, + int hdr_len, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + u8 mic[8]; + + if (!tkey->key_set) + return -1; + + michael_mic_hdr(skb, tkey->rx_hdr); + if (michael_mic(tkey, &tkey->key[24], tkey->rx_hdr, + skb->data + hdr_len, skb->len - 8 - hdr_len, mic)) + return -1; + if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) { + struct ieee80211_hdr *hdr; + hdr = (struct ieee80211_hdr *) skb->data; + printk(KERN_DEBUG "%s: Michael MIC verification failed for " + "MSDU from " MAC_FMT " keyidx=%d\n", + skb->dev ? skb->dev->name : "N/A", MAC_ARG(hdr->addr2), + keyidx); + if (skb->dev) + ieee80211_michael_mic_failure(skb->dev, hdr, keyidx); + tkey->dot11RSNAStatsTKIPLocalMICFailures++; + return -1; + } + + /* Update TSC counters for RX now that the packet verification has + * completed. */ + tkey->rx_iv32 = tkey->rx_iv32_new; + tkey->rx_iv16 = tkey->rx_iv16_new; + + skb_trim(skb, skb->len - 8); + + return 0; +} + + +static int ieee80211_tkip_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + int keyidx; + struct crypto_tfm *tfm = tkey->tfm_michael; + struct crypto_tfm *tfm2 = tkey->tfm_arc4; + + keyidx = tkey->key_idx; + memset(tkey, 0, sizeof(*tkey)); + tkey->key_idx = keyidx; + tkey->tfm_michael = tfm; + tkey->tfm_arc4 = tfm2; + if (len == TKIP_KEY_LEN) { + memcpy(tkey->key, key, TKIP_KEY_LEN); + tkey->key_set = 1; + tkey->tx_iv16 = 1; /* TSC is initialized to 1 */ + if (seq) { + tkey->rx_iv32 = (seq[5] << 24) | (seq[4] << 16) | + (seq[3] << 8) | seq[2]; + tkey->rx_iv16 = (seq[1] << 8) | seq[0]; + } + } else if (len == 0) + tkey->key_set = 0; + else + return -1; + + return 0; +} + + +static int ieee80211_tkip_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct ieee80211_tkip_data *tkey = priv; + + if (len < TKIP_KEY_LEN) + return -1; + + if (!tkey->key_set) + return 0; + memcpy(key, tkey->key, TKIP_KEY_LEN); + + if (seq) { + /* Return the sequence number of the last transmitted frame. */ + u16 iv16 = tkey->tx_iv16; + u32 iv32 = tkey->tx_iv32; + if (iv16 == 0) + iv32--; + iv16--; + seq[0] = tkey->tx_iv16; + seq[1] = tkey->tx_iv16 >> 8; + seq[2] = tkey->tx_iv32; + seq[3] = tkey->tx_iv32 >> 8; + seq[4] = tkey->tx_iv32 >> 16; + seq[5] = tkey->tx_iv32 >> 24; + } + + return TKIP_KEY_LEN; +} + + +static char * ieee80211_tkip_print_stats(char *p, void *priv) +{ + struct ieee80211_tkip_data *tkip = priv; + p += sprintf(p, "key[%d] alg=TKIP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "replays=%d icv_errors=%d local_mic_failures=%d\n", + tkip->key_idx, tkip->key_set, + (tkip->tx_iv32 >> 24) & 0xff, + (tkip->tx_iv32 >> 16) & 0xff, + (tkip->tx_iv32 >> 8) & 0xff, + tkip->tx_iv32 & 0xff, + (tkip->tx_iv16 >> 8) & 0xff, + tkip->tx_iv16 & 0xff, + (tkip->rx_iv32 >> 24) & 0xff, + (tkip->rx_iv32 >> 16) & 0xff, + (tkip->rx_iv32 >> 8) & 0xff, + tkip->rx_iv32 & 0xff, + (tkip->rx_iv16 >> 8) & 0xff, + tkip->rx_iv16 & 0xff, + tkip->dot11RSNAStatsTKIPReplays, + tkip->dot11RSNAStatsTKIPICVErrors, + tkip->dot11RSNAStatsTKIPLocalMICFailures); + return p; +} + + +static struct ieee80211_crypto_ops ieee80211_crypt_tkip = { + .name = "TKIP", + .init = ieee80211_tkip_init, + .deinit = ieee80211_tkip_deinit, + .encrypt_mpdu = ieee80211_tkip_encrypt, + .decrypt_mpdu = ieee80211_tkip_decrypt, + .encrypt_msdu = ieee80211_michael_mic_add, + .decrypt_msdu = ieee80211_michael_mic_verify, + .set_key = ieee80211_tkip_set_key, + .get_key = ieee80211_tkip_get_key, + .print_stats = ieee80211_tkip_print_stats, + .extra_prefix_len = 4 + 4, /* IV + ExtIV */ + .extra_postfix_len = 8 + 4, /* MIC + ICV */ + .owner = THIS_MODULE, +}; + + +static int __init ieee80211_crypto_tkip_init(void) +{ + return ieee80211_register_crypto_ops(&ieee80211_crypt_tkip); +} + + +static void __exit ieee80211_crypto_tkip_exit(void) +{ + ieee80211_unregister_crypto_ops(&ieee80211_crypt_tkip); +} + + +module_init(ieee80211_crypto_tkip_init); +module_exit(ieee80211_crypto_tkip_exit); diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c new file mode 100644 index 0000000..bec1d34 --- /dev/null +++ b/net/ieee80211/ieee80211_crypt_wep.c @@ -0,0 +1,272 @@ +/* + * Host AP crypt: host-based WEP encryption implementation for Host AP driver + * + * Copyright (c) 2002-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +#include +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: WEP"); +MODULE_LICENSE("GPL"); + + +struct prism2_wep_data { + u32 iv; +#define WEP_KEY_LEN 13 + u8 key[WEP_KEY_LEN + 1]; + u8 key_len; + u8 key_idx; + struct crypto_tfm *tfm; +}; + + +static void * prism2_wep_init(int keyidx) +{ + struct prism2_wep_data *priv; + + priv = kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) + goto fail; + memset(priv, 0, sizeof(*priv)); + priv->key_idx = keyidx; + + priv->tfm = crypto_alloc_tfm("arc4", 0); + if (priv->tfm == NULL) { + printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate " + "crypto API arc4\n"); + goto fail; + } + + /* start WEP IV from a random value */ + get_random_bytes(&priv->iv, 4); + + return priv; + +fail: + if (priv) { + if (priv->tfm) + crypto_free_tfm(priv->tfm); + kfree(priv); + } + return NULL; +} + + +static void prism2_wep_deinit(void *priv) +{ + struct prism2_wep_data *_priv = priv; + if (_priv && _priv->tfm) + crypto_free_tfm(_priv->tfm); + kfree(priv); +} + + +/* Perform WEP encryption on given skb that has at least 4 bytes of headroom + * for IV and 4 bytes of tailroom for ICV. Both IV and ICV will be transmitted, + * so the payload length increases with 8 bytes. + * + * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data)) + */ +static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct prism2_wep_data *wep = priv; + u32 crc, klen, len; + u8 key[WEP_KEY_LEN + 3]; + u8 *pos, *icv; + struct scatterlist sg; + + if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 || + skb->len < hdr_len) + return -1; + + len = skb->len - hdr_len; + pos = skb_push(skb, 4); + memmove(pos, pos + 4, hdr_len); + pos += hdr_len; + + klen = 3 + wep->key_len; + + wep->iv++; + + /* Fluhrer, Mantin, and Shamir have reported weaknesses in the key + * scheduling algorithm of RC4. At least IVs (KeyByte + 3, 0xff, N) + * can be used to speedup attacks, so avoid using them. */ + if ((wep->iv & 0xff00) == 0xff00) { + u8 B = (wep->iv >> 16) & 0xff; + if (B >= 3 && B < klen) + wep->iv += 0x0100; + } + + /* Prepend 24-bit IV to RC4 key and TX frame */ + *pos++ = key[0] = (wep->iv >> 16) & 0xff; + *pos++ = key[1] = (wep->iv >> 8) & 0xff; + *pos++ = key[2] = wep->iv & 0xff; + *pos++ = wep->key_idx << 6; + + /* Copy rest of the WEP key (the secret part) */ + memcpy(key + 3, wep->key, wep->key_len); + + /* Append little-endian CRC32 and encrypt it to produce ICV */ + crc = ~crc32_le(~0, pos, len); + icv = skb_put(skb, 4); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + + crypto_cipher_setkey(wep->tfm, key, klen); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = len + 4; + crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4); + + return 0; +} + + +/* Perform WEP decryption on given buffer. Buffer includes whole WEP part of + * the frame: IV (4 bytes), encrypted payload (including SNAP header), + * ICV (4 bytes). len includes both IV and ICV. + * + * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on + * failure. If frame is OK, IV and ICV will be removed. + */ +static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct prism2_wep_data *wep = priv; + u32 crc, klen, plen; + u8 key[WEP_KEY_LEN + 3]; + u8 keyidx, *pos, icv[4]; + struct scatterlist sg; + + if (skb->len < hdr_len + 8) + return -1; + + pos = skb->data + hdr_len; + key[0] = *pos++; + key[1] = *pos++; + key[2] = *pos++; + keyidx = *pos++ >> 6; + if (keyidx != wep->key_idx) + return -1; + + klen = 3 + wep->key_len; + + /* Copy rest of the WEP key (the secret part) */ + memcpy(key + 3, wep->key, wep->key_len); + + /* Apply RC4 to data and compute CRC32 over decrypted data */ + plen = skb->len - hdr_len - 8; + + crypto_cipher_setkey(wep->tfm, key, klen); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = plen + 4; + crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4); + + crc = ~crc32_le(~0, pos, plen); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + if (memcmp(icv, pos + plen, 4) != 0) { + /* ICV mismatch - drop frame */ + return -2; + } + + /* Remove IV and ICV */ + memmove(skb->data + 4, skb->data, hdr_len); + skb_pull(skb, 4); + skb_trim(skb, skb->len - 4); + + return 0; +} + + +static int prism2_wep_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct prism2_wep_data *wep = priv; + + if (len < 0 || len > WEP_KEY_LEN) + return -1; + + memcpy(wep->key, key, len); + wep->key_len = len; + + return 0; +} + + +static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct prism2_wep_data *wep = priv; + + if (len < wep->key_len) + return -1; + + memcpy(key, wep->key, wep->key_len); + + return wep->key_len; +} + + +static char * prism2_wep_print_stats(char *p, void *priv) +{ + struct prism2_wep_data *wep = priv; + p += sprintf(p, "key[%d] alg=WEP len=%d\n", + wep->key_idx, wep->key_len); + return p; +} + + +static struct ieee80211_crypto_ops ieee80211_crypt_wep = { + .name = "WEP", + .init = prism2_wep_init, + .deinit = prism2_wep_deinit, + .encrypt_mpdu = prism2_wep_encrypt, + .decrypt_mpdu = prism2_wep_decrypt, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = prism2_wep_set_key, + .get_key = prism2_wep_get_key, + .print_stats = prism2_wep_print_stats, + .extra_prefix_len = 4, /* IV */ + .extra_postfix_len = 4, /* ICV */ + .owner = THIS_MODULE, +}; + + +static int __init ieee80211_crypto_wep_init(void) +{ + return ieee80211_register_crypto_ops(&ieee80211_crypt_wep); +} + + +static void __exit ieee80211_crypto_wep_exit(void) +{ + ieee80211_unregister_crypto_ops(&ieee80211_crypt_wep); +} + + +module_init(ieee80211_crypto_wep_init); +module_exit(ieee80211_crypto_wep_exit); diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c new file mode 100644 index 0000000..e4ca0da --- /dev/null +++ b/net/ieee80211/ieee80211_module.c @@ -0,0 +1,268 @@ +/******************************************************************************* + + Copyright(c) 2004 Intel Corporation. All rights reserved. + + Portions of this file are based on the WEP enablement code provided by the + Host AP project hostap-drivers v0.1.3 + Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + + Copyright (c) 2002-2003, Jouni Malinen + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +*******************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +MODULE_DESCRIPTION("802.11 data/management/control stack"); +MODULE_AUTHOR("Copyright (C) 2004 Intel Corporation "); +MODULE_LICENSE("GPL"); + +#define DRV_NAME "ieee80211" + +static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee) +{ + if (ieee->networks) + return 0; + + ieee->networks = kmalloc( + MAX_NETWORK_COUNT * sizeof(struct ieee80211_network), + GFP_KERNEL); + if (!ieee->networks) { + printk(KERN_WARNING "%s: Out of memory allocating beacons\n", + ieee->dev->name); + return -ENOMEM; + } + + memset(ieee->networks, 0, + MAX_NETWORK_COUNT * sizeof(struct ieee80211_network)); + + return 0; +} + +static inline void ieee80211_networks_free(struct ieee80211_device *ieee) +{ + if (!ieee->networks) + return; + kfree(ieee->networks); + ieee->networks = NULL; +} + +static inline void ieee80211_networks_initialize(struct ieee80211_device *ieee) +{ + int i; + + INIT_LIST_HEAD(&ieee->network_free_list); + INIT_LIST_HEAD(&ieee->network_list); + for (i = 0; i < MAX_NETWORK_COUNT; i++) + list_add_tail(&ieee->networks[i].list, &ieee->network_free_list); +} + + +struct net_device *alloc_ieee80211(int sizeof_priv) +{ + struct ieee80211_device *ieee; + struct net_device *dev; + int err; + + IEEE80211_DEBUG_INFO("Initializing...\n"); + + dev = alloc_etherdev(sizeof(struct ieee80211_device) + sizeof_priv); + if (!dev) { + IEEE80211_ERROR("Unable to network device.\n"); + goto failed; + } + ieee = netdev_priv(dev); + dev->hard_start_xmit = ieee80211_xmit; + + ieee->dev = dev; + + err = ieee80211_networks_allocate(ieee); + if (err) { + IEEE80211_ERROR("Unable to allocate beacon storage: %d\n", + err); + goto failed; + } + ieee80211_networks_initialize(ieee); + + /* Default fragmentation threshold is maximum payload size */ + ieee->fts = DEFAULT_FTS; + ieee->scan_age = DEFAULT_MAX_SCAN_AGE; + ieee->open_wep = 1; + + /* Default to enabling full open WEP with host based encrypt/decrypt */ + ieee->host_encrypt = 1; + ieee->host_decrypt = 1; + ieee->ieee802_1x = 1; /* Default to supporting 802.1x */ + + INIT_LIST_HEAD(&ieee->crypt_deinit_list); + init_timer(&ieee->crypt_deinit_timer); + ieee->crypt_deinit_timer.data = (unsigned long)ieee; + ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler; + + spin_lock_init(&ieee->lock); + + ieee->wpa_enabled = 0; + ieee->tkip_countermeasures = 0; + ieee->drop_unencrypted = 0; + ieee->privacy_invoked = 0; + ieee->ieee802_1x = 1; + + return dev; + + failed: + if (dev) + free_netdev(dev); + return NULL; +} + + +void free_ieee80211(struct net_device *dev) +{ + struct ieee80211_device *ieee = netdev_priv(dev); + + int i; + + del_timer_sync(&ieee->crypt_deinit_timer); + ieee80211_crypt_deinit_entries(ieee, 1); + + for (i = 0; i < WEP_KEYS; i++) { + struct ieee80211_crypt_data *crypt = ieee->crypt[i]; + if (crypt) { + if (crypt->ops) { + crypt->ops->deinit(crypt->priv); + module_put(crypt->ops->owner); + } + kfree(crypt); + ieee->crypt[i] = NULL; + } + } + + ieee80211_networks_free(ieee); + free_netdev(dev); +} + +#ifdef CONFIG_IEEE80211_DEBUG + +static int debug = 0; +u32 ieee80211_debug_level = 0; +struct proc_dir_entry *ieee80211_proc = NULL; + +static int show_debug_level(char *page, char **start, off_t offset, + int count, int *eof, void *data) +{ + return snprintf(page, count, "0x%08X\n", ieee80211_debug_level); +} + +static int store_debug_level(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + char buf[] = "0x00000000"; + unsigned long len = min(sizeof(buf) - 1, (u32)count); + char *p = (char *)buf; + unsigned long val; + + if (copy_from_user(buf, buffer, len)) + return count; + buf[len] = 0; + if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') { + p++; + if (p[0] == 'x' || p[0] == 'X') + p++; + val = simple_strtoul(p, &p, 16); + } else + val = simple_strtoul(p, &p, 10); + if (p == buf) + printk(KERN_INFO DRV_NAME + ": %s is not in hex or decimal form.\n", buf); + else + ieee80211_debug_level = val; + + return strnlen(buf, count); +} + +static int __init ieee80211_init(void) +{ + struct proc_dir_entry *e; + + ieee80211_debug_level = debug; + ieee80211_proc = create_proc_entry(DRV_NAME, S_IFDIR, proc_net); + if (ieee80211_proc == NULL) { + IEEE80211_ERROR("Unable to create " DRV_NAME + " proc directory\n"); + return -EIO; + } + e = create_proc_entry("debug_level", S_IFREG | S_IRUGO | S_IWUSR, + ieee80211_proc); + if (!e) { + remove_proc_entry(DRV_NAME, proc_net); + ieee80211_proc = NULL; + return -EIO; + } + e->read_proc = show_debug_level; + e->write_proc = store_debug_level; + e->data = NULL; + + return 0; +} + +static void __exit ieee80211_exit(void) +{ + if (ieee80211_proc) { + remove_proc_entry("debug_level", ieee80211_proc); + remove_proc_entry(DRV_NAME, proc_net); + ieee80211_proc = NULL; + } +} + +#include +module_param(debug, int, 0444); +MODULE_PARM_DESC(debug, "debug output mask"); + + +module_exit(ieee80211_exit); +module_init(ieee80211_init); +#endif + +EXPORT_SYMBOL(alloc_ieee80211); +EXPORT_SYMBOL(free_ieee80211); diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c new file mode 100644 index 0000000..2bda8a1 --- /dev/null +++ b/net/ieee80211/ieee80211_rx.c @@ -0,0 +1,1206 @@ +/* + * Original code based Host AP (software wireless LAN access point) driver + * for Intersil Prism2/2.5/3 - hostap.o module, common routines + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2003, Jouni Malinen + * Copyright (c) 2004, Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee, + struct sk_buff *skb, + struct ieee80211_rx_stats *rx_stats) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + u16 fc = le16_to_cpu(hdr->frame_ctl); + + skb->dev = ieee->dev; + skb->mac.raw = skb->data; + skb_pull(skb, ieee80211_get_hdrlen(fc)); + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = __constant_htons(ETH_P_80211_RAW); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_rx(skb); +} + + +/* Called only as a tasklet (software IRQ) */ +static struct ieee80211_frag_entry * +ieee80211_frag_cache_find(struct ieee80211_device *ieee, unsigned int seq, + unsigned int frag, u8 *src, u8 *dst) +{ + struct ieee80211_frag_entry *entry; + int i; + + for (i = 0; i < IEEE80211_FRAG_CACHE_LEN; i++) { + entry = &ieee->frag_cache[i]; + if (entry->skb != NULL && + time_after(jiffies, entry->first_frag_time + 2 * HZ)) { + IEEE80211_DEBUG_FRAG( + "expiring fragment cache entry " + "seq=%u last_frag=%u\n", + entry->seq, entry->last_frag); + dev_kfree_skb_any(entry->skb); + entry->skb = NULL; + } + + if (entry->skb != NULL && entry->seq == seq && + (entry->last_frag + 1 == frag || frag == -1) && + memcmp(entry->src_addr, src, ETH_ALEN) == 0 && + memcmp(entry->dst_addr, dst, ETH_ALEN) == 0) + return entry; + } + + return NULL; +} + +/* Called only as a tasklet (software IRQ) */ +static struct sk_buff * +ieee80211_frag_cache_get(struct ieee80211_device *ieee, + struct ieee80211_hdr *hdr) +{ + struct sk_buff *skb = NULL; + u16 sc; + unsigned int frag, seq; + struct ieee80211_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctl); + frag = WLAN_GET_SEQ_FRAG(sc); + seq = WLAN_GET_SEQ_SEQ(sc); + + if (frag == 0) { + /* Reserve enough space to fit maximum frame length */ + skb = dev_alloc_skb(ieee->dev->mtu + + sizeof(struct ieee80211_hdr) + + 8 /* LLC */ + + 2 /* alignment */ + + 8 /* WEP */ + ETH_ALEN /* WDS */); + if (skb == NULL) + return NULL; + + entry = &ieee->frag_cache[ieee->frag_next_idx]; + ieee->frag_next_idx++; + if (ieee->frag_next_idx >= IEEE80211_FRAG_CACHE_LEN) + ieee->frag_next_idx = 0; + + if (entry->skb != NULL) + dev_kfree_skb_any(entry->skb); + + entry->first_frag_time = jiffies; + entry->seq = seq; + entry->last_frag = frag; + entry->skb = skb; + memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); + memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); + } else { + /* received a fragment of a frame for which the head fragment + * should have already been received */ + entry = ieee80211_frag_cache_find(ieee, seq, frag, hdr->addr2, + hdr->addr1); + if (entry != NULL) { + entry->last_frag = frag; + skb = entry->skb; + } + } + + return skb; +} + + +/* Called only as a tasklet (software IRQ) */ +static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, + struct ieee80211_hdr *hdr) +{ + u16 sc; + unsigned int seq; + struct ieee80211_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctl); + seq = WLAN_GET_SEQ_SEQ(sc); + + entry = ieee80211_frag_cache_find(ieee, seq, -1, hdr->addr2, + hdr->addr1); + + if (entry == NULL) { + IEEE80211_DEBUG_FRAG( + "could not invalidate fragment cache " + "entry (seq=%u)\n", seq); + return -1; + } + + entry->skb = NULL; + return 0; +} + + +#ifdef NOT_YET +/* ieee80211_rx_frame_mgtmt + * + * Responsible for handling management control frames + * + * Called by ieee80211_rx */ +static inline int +ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, + struct ieee80211_rx_stats *rx_stats, u16 type, + u16 stype) +{ + if (ieee->iw_mode == IW_MODE_MASTER) { + printk(KERN_DEBUG "%s: Master mode not yet suppported.\n", + ieee->dev->name); + return 0; +/* + hostap_update_sta_ps(ieee, (struct hostap_ieee80211_hdr *) + skb->data);*/ + } + + if (ieee->hostapd && type == WLAN_FC_TYPE_MGMT) { + if (stype == WLAN_FC_STYPE_BEACON && + ieee->iw_mode == IW_MODE_MASTER) { + struct sk_buff *skb2; + /* Process beacon frames also in kernel driver to + * update STA(AP) table statistics */ + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2) + hostap_rx(skb2->dev, skb2, rx_stats); + } + + /* send management frames to the user space daemon for + * processing */ + ieee->apdevstats.rx_packets++; + ieee->apdevstats.rx_bytes += skb->len; + prism2_rx_80211(ieee->apdev, skb, rx_stats, PRISM2_RX_MGMT); + return 0; + } + + if (ieee->iw_mode == IW_MODE_MASTER) { + if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { + printk(KERN_DEBUG "%s: unknown management frame " + "(type=0x%02x, stype=0x%02x) dropped\n", + skb->dev->name, type, stype); + return -1; + } + + hostap_rx(skb->dev, skb, rx_stats); + return 0; + } + + printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: management frame " + "received in non-Host AP mode\n", skb->dev->name); + return -1; +} +#endif + + +/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ +/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ +static unsigned char rfc1042_header[] = +{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; +/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ +static unsigned char bridge_tunnel_header[] = +{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; +/* No encapsulation header if EtherType < 0x600 (=length) */ + +/* Called by ieee80211_rx_frame_decrypt */ +static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee, + struct sk_buff *skb) +{ + struct net_device *dev = ieee->dev; + u16 fc, ethertype; + struct ieee80211_hdr *hdr; + u8 *pos; + + if (skb->len < 24) + return 0; + + hdr = (struct ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_ctl); + + /* check that the frame is unicast frame to us */ + if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_TODS && + memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 && + memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) { + /* ToDS frame with own addr BSSID and DA */ + } else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_FROMDS && + memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) { + /* FromDS frame with own addr as DA */ + } else + return 0; + + if (skb->len < 24 + 8) + return 0; + + /* check for port access entity Ethernet type */ + pos = skb->data + 24; + ethertype = (pos[6] << 8) | pos[7]; + if (ethertype == ETH_P_PAE) + return 1; + + return 0; +} + +/* Called only as a tasklet (software IRQ), by ieee80211_rx */ +static inline int +ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, + struct ieee80211_crypt_data *crypt) +{ + struct ieee80211_hdr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) + return 0; + + hdr = (struct ieee80211_hdr *) skb->data; + hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); + +#ifdef CONFIG_IEEE80211_CRYPT_TKIP + if (ieee->tkip_countermeasures && + strcmp(crypt->ops->name, "TKIP") == 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " + "received packet from " MAC_FMT "\n", + ieee->dev->name, MAC_ARG(hdr->addr2)); + } + return -1; + } +#endif + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + IEEE80211_DEBUG_DROP( + "decryption failed (SA=" MAC_FMT + ") res=%d\n", MAC_ARG(hdr->addr2), res); + if (res == -2) + IEEE80211_DEBUG_DROP("Decryption failed ICV " + "mismatch (key %d)\n", + skb->data[hdrlen + 3] >> 6); + ieee->ieee_stats.rx_discards_undecryptable++; + return -1; + } + + return res; +} + + +/* Called only as a tasklet (software IRQ), by ieee80211_rx */ +static inline int +ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device* ieee, struct sk_buff *skb, + int keyidx, struct ieee80211_crypt_data *crypt) +{ + struct ieee80211_hdr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) + return 0; + + hdr = (struct ieee80211_hdr *) skb->data; + hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl)); + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" + " (SA=" MAC_FMT " keyidx=%d)\n", + ieee->dev->name, MAC_ARG(hdr->addr2), keyidx); + return -1; + } + + return 0; +} + + +/* All received frames are sent to this function. @skb contains the frame in + * IEEE 802.11 format, i.e., in the format it was sent over air. + * This function is called only as a tasklet (software IRQ). */ +int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, + struct ieee80211_rx_stats *rx_stats) +{ + struct net_device *dev = ieee->dev; + struct ieee80211_hdr *hdr; + size_t hdrlen; + u16 fc, type, stype, sc; + struct net_device_stats *stats; + unsigned int frag; + u8 *payload; + u16 ethertype; +#ifdef NOT_YET + struct net_device *wds = NULL; + struct sk_buff *skb2 = NULL; + struct net_device *wds = NULL; + int frame_authorized = 0; + int from_assoc_ap = 0; + void *sta = NULL; +#endif + u8 dst[ETH_ALEN]; + u8 src[ETH_ALEN]; + struct ieee80211_crypt_data *crypt = NULL; + int keyidx = 0; + + hdr = (struct ieee80211_hdr *)skb->data; + stats = &ieee->stats; + + if (skb->len < 10) { + printk(KERN_INFO "%s: SKB length < 10\n", + dev->name); + goto rx_dropped; + } + + fc = le16_to_cpu(hdr->frame_ctl); + type = WLAN_FC_GET_TYPE(fc); + stype = WLAN_FC_GET_STYPE(fc); + sc = le16_to_cpu(hdr->seq_ctl); + frag = WLAN_GET_SEQ_FRAG(sc); + hdrlen = ieee80211_get_hdrlen(fc); + +#ifdef NOT_YET +#if WIRELESS_EXT > 15 + /* Put this code here so that we avoid duplicating it in all + * Rx paths. - Jean II */ +#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ + /* If spy monitoring on */ + if (iface->spy_data.spy_number > 0) { + struct iw_quality wstats; + wstats.level = rx_stats->signal; + wstats.noise = rx_stats->noise; + wstats.updated = 6; /* No qual value */ + /* Update spy records */ + wireless_spy_update(dev, hdr->addr2, &wstats); + } +#endif /* IW_WIRELESS_SPY */ +#endif /* WIRELESS_EXT > 15 */ + hostap_update_rx_stats(local->ap, hdr, rx_stats); +#endif + +#if WIRELESS_EXT > 15 + if (ieee->iw_mode == IW_MODE_MONITOR) { + ieee80211_monitor_rx(ieee, skb, rx_stats); + stats->rx_packets++; + stats->rx_bytes += skb->len; + return 1; + } +#endif + + if (ieee->host_decrypt) { + int idx = 0; + if (skb->len >= hdrlen + 3) + idx = skb->data[hdrlen + 3] >> 6; + crypt = ieee->crypt[idx]; +#ifdef NOT_YET + sta = NULL; + + /* Use station specific key to override default keys if the + * receiver address is a unicast address ("individual RA"). If + * bcrx_sta_key parameter is set, station specific key is used + * even with broad/multicast targets (this is against IEEE + * 802.11, but makes it easier to use different keys with + * stations that do not support WEP key mapping). */ + + if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key) + (void) hostap_handle_sta_crypto(local, hdr, &crypt, + &sta); +#endif + + /* allow NULL decrypt to indicate an station specific override + * for default encryption */ + if (crypt && (crypt->ops == NULL || + crypt->ops->decrypt_mpdu == NULL)) + crypt = NULL; + + if (!crypt && (fc & IEEE80211_FCTL_WEP)) { + /* This seems to be triggered by some (multicast?) + * frames from other than current BSS, so just drop the + * frames silently instead of filling system log with + * these reports. */ + IEEE80211_DEBUG_DROP("Decryption failed (not set)" + " (SA=" MAC_FMT ")\n", + MAC_ARG(hdr->addr2)); + ieee->ieee_stats.rx_discards_undecryptable++; + goto rx_dropped; + } + } + +#ifdef NOT_YET + if (type != WLAN_FC_TYPE_DATA) { + if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && + fc & IEEE80211_FCTL_WEP && ieee->host_decrypt && + (keyidx = hostap_rx_frame_decrypt(ieee, skb, crypt)) < 0) + { + printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " + "from " MAC_FMT "\n", dev->name, + MAC_ARG(hdr->addr2)); + /* TODO: could inform hostapd about this so that it + * could send auth failure report */ + goto rx_dropped; + } + + if (ieee80211_rx_frame_mgmt(ieee, skb, rx_stats, type, stype)) + goto rx_dropped; + else + goto rx_exit; + } +#endif + + /* Data frame - extract src/dst addresses */ + if (skb->len < IEEE80211_DATA_HDR3_LEN) + goto rx_dropped; + + switch (fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { + case IEEE80211_FCTL_FROMDS: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr3, ETH_ALEN); + break; + case IEEE80211_FCTL_TODS: + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS: + if (skb->len < IEEE80211_DATA_HDR4_LEN) + goto rx_dropped; + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr4, ETH_ALEN); + break; + case 0: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + } + +#ifdef NOT_YET + if (hostap_rx_frame_wds(ieee, hdr, fc, &wds)) + goto rx_dropped; + if (wds) { + skb->dev = dev = wds; + stats = hostap_get_stats(dev); + } + + if (ieee->iw_mode == IW_MODE_MASTER && !wds && + (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS && + ieee->stadev && + memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) { + /* Frame from BSSID of the AP for which we are a client */ + skb->dev = dev = ieee->stadev; + stats = hostap_get_stats(dev); + from_assoc_ap = 1; + } +#endif + + dev->last_rx = jiffies; + +#ifdef NOT_YET + if ((ieee->iw_mode == IW_MODE_MASTER || + ieee->iw_mode == IW_MODE_REPEAT) && + !from_assoc_ap) { + switch (hostap_handle_sta_rx(ieee, dev, skb, rx_stats, + wds != NULL)) { + case AP_RX_CONTINUE_NOT_AUTHORIZED: + frame_authorized = 0; + break; + case AP_RX_CONTINUE: + frame_authorized = 1; + break; + case AP_RX_DROP: + goto rx_dropped; + case AP_RX_EXIT: + goto rx_exit; + } + } +#endif + + /* Nullfunc frames may have PS-bit set, so they must be passed to + * hostap_handle_sta_rx() before being dropped here. */ + if (stype != IEEE80211_STYPE_DATA && + stype != IEEE80211_STYPE_DATA_CFACK && + stype != IEEE80211_STYPE_DATA_CFPOLL && + stype != IEEE80211_STYPE_DATA_CFACKPOLL) { + if (stype != IEEE80211_STYPE_NULLFUNC) + IEEE80211_DEBUG_DROP( + "RX: dropped data frame " + "with no data (type=0x%02x, " + "subtype=0x%02x, len=%d)\n", + type, stype, skb->len); + goto rx_dropped; + } + + /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ + + if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && + (keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0) + goto rx_dropped; + + hdr = (struct ieee80211_hdr *) skb->data; + + /* skb: hdr + (possibly fragmented) plaintext payload */ + // PR: FIXME: hostap has additional conditions in the "if" below: + // ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && + if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) { + int flen; + struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr); + IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag); + + if (!frag_skb) { + IEEE80211_DEBUG(IEEE80211_DL_RX | IEEE80211_DL_FRAG, + "Rx cannot get skb from fragment " + "cache (morefrag=%d seq=%u frag=%u)\n", + (fc & IEEE80211_FCTL_MOREFRAGS) != 0, + WLAN_GET_SEQ_SEQ(sc), frag); + goto rx_dropped; + } + + flen = skb->len; + if (frag != 0) + flen -= hdrlen; + + if (frag_skb->tail + flen > frag_skb->end) { + printk(KERN_WARNING "%s: host decrypted and " + "reassembled frame did not fit skb\n", + dev->name); + ieee80211_frag_cache_invalidate(ieee, hdr); + goto rx_dropped; + } + + if (frag == 0) { + /* copy first fragment (including full headers) into + * beginning of the fragment cache skb */ + memcpy(skb_put(frag_skb, flen), skb->data, flen); + } else { + /* append frame payload to the end of the fragment + * cache skb */ + memcpy(skb_put(frag_skb, flen), skb->data + hdrlen, + flen); + } + dev_kfree_skb_any(skb); + skb = NULL; + + if (fc & IEEE80211_FCTL_MOREFRAGS) { + /* more fragments expected - leave the skb in fragment + * cache for now; it will be delivered to upper layers + * after all fragments have been received */ + goto rx_exit; + } + + /* this was the last fragment and the frame will be + * delivered, so remove skb from fragment cache */ + skb = frag_skb; + hdr = (struct ieee80211_hdr *) skb->data; + ieee80211_frag_cache_invalidate(ieee, hdr); + } + + /* skb: hdr + (possible reassembled) full MSDU payload; possibly still + * encrypted/authenticated */ + if (ieee->host_decrypt && (fc & IEEE80211_FCTL_WEP) && + ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt)) + goto rx_dropped; + + hdr = (struct ieee80211_hdr *) skb->data; + if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep) { + if (/*ieee->ieee802_1x &&*/ + ieee80211_is_eapol_frame(ieee, skb)) { +#ifdef CONFIG_IEEE80211_DEBUG + /* pass unencrypted EAPOL frames even if encryption is + * configured */ + struct eapol *eap = (struct eapol *)(skb->data + + 24); + IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", + eap_get_type(eap->type)); +#endif + } else { + IEEE80211_DEBUG_DROP( + "encryption configured, but RX " + "frame not encrypted (SA=" MAC_FMT ")\n", + MAC_ARG(hdr->addr2)); + goto rx_dropped; + } + } + +#ifdef CONFIG_IEEE80211_DEBUG + if (crypt && !(fc & IEEE80211_FCTL_WEP) && + ieee80211_is_eapol_frame(ieee, skb)) { + struct eapol *eap = (struct eapol *)(skb->data + + 24); + IEEE80211_DEBUG_EAP("RX: IEEE 802.1X EAPOL frame: %s\n", + eap_get_type(eap->type)); + } +#endif + + if (crypt && !(fc & IEEE80211_FCTL_WEP) && !ieee->open_wep && + !ieee80211_is_eapol_frame(ieee, skb)) { + IEEE80211_DEBUG_DROP( + "dropped unencrypted RX data " + "frame from " MAC_FMT + " (drop_unencrypted=1)\n", + MAC_ARG(hdr->addr2)); + goto rx_dropped; + } + + /* skb: hdr + (possible reassembled) full plaintext payload */ + + payload = skb->data + hdrlen; + ethertype = (payload[6] << 8) | payload[7]; + +#ifdef NOT_YET + /* If IEEE 802.1X is used, check whether the port is authorized to send + * the received frame. */ + if (ieee->ieee802_1x && ieee->iw_mode == IW_MODE_MASTER) { + if (ethertype == ETH_P_PAE) { + printk(KERN_DEBUG "%s: RX: IEEE 802.1X frame\n", + dev->name); + if (ieee->hostapd && ieee->apdev) { + /* Send IEEE 802.1X frames to the user + * space daemon for processing */ + prism2_rx_80211(ieee->apdev, skb, rx_stats, + PRISM2_RX_MGMT); + ieee->apdevstats.rx_packets++; + ieee->apdevstats.rx_bytes += skb->len; + goto rx_exit; + } + } else if (!frame_authorized) { + printk(KERN_DEBUG "%s: dropped frame from " + "unauthorized port (IEEE 802.1X): " + "ethertype=0x%04x\n", + dev->name, ethertype); + goto rx_dropped; + } + } +#endif + + /* convert hdr + possible LLC headers into Ethernet header */ + if (skb->len - hdrlen >= 8 && + ((memcmp(payload, rfc1042_header, SNAP_SIZE) == 0 && + ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || + memcmp(payload, bridge_tunnel_header, SNAP_SIZE) == 0)) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and + * replace EtherType */ + skb_pull(skb, hdrlen + SNAP_SIZE); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } else { + u16 len; + /* Leave Ethernet header part of hdr and full payload */ + skb_pull(skb, hdrlen); + len = htons(skb->len); + memcpy(skb_push(skb, 2), &len, 2); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } + +#ifdef NOT_YET + if (wds && ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == + IEEE80211_FCTL_TODS) && + skb->len >= ETH_HLEN + ETH_ALEN) { + /* Non-standard frame: get addr4 from its bogus location after + * the payload */ + memcpy(skb->data + ETH_ALEN, + skb->data + skb->len - ETH_ALEN, ETH_ALEN); + skb_trim(skb, skb->len - ETH_ALEN); + } +#endif + + stats->rx_packets++; + stats->rx_bytes += skb->len; + +#ifdef NOT_YET + if (ieee->iw_mode == IW_MODE_MASTER && !wds && + ieee->ap->bridge_packets) { + if (dst[0] & 0x01) { + /* copy multicast frame both to the higher layers and + * to the wireless media */ + ieee->ap->bridged_multicast++; + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2 == NULL) + printk(KERN_DEBUG "%s: skb_clone failed for " + "multicast frame\n", dev->name); + } else if (hostap_is_sta_assoc(ieee->ap, dst)) { + /* send frame directly to the associated STA using + * wireless media and not passing to higher layers */ + ieee->ap->bridged_unicast++; + skb2 = skb; + skb = NULL; + } + } + + if (skb2 != NULL) { + /* send to wireless media */ + skb2->protocol = __constant_htons(ETH_P_802_3); + skb2->mac.raw = skb2->nh.raw = skb2->data; + /* skb2->nh.raw = skb2->data + ETH_HLEN; */ + skb2->dev = dev; + dev_queue_xmit(skb2); + } + +#endif + + if (skb) { + skb->protocol = eth_type_trans(skb, dev); + memset(skb->cb, 0, sizeof(skb->cb)); + skb->dev = dev; + skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */ + netif_rx(skb); + } + + rx_exit: +#ifdef NOT_YET + if (sta) + hostap_handle_sta_release(sta); +#endif + return 1; + + rx_dropped: + stats->rx_dropped++; + + /* Returning 0 indicates to caller that we have not handled the SKB-- + * so it is still allocated and can be used again by underlying + * hardware as a DMA target */ + return 0; +} + +#define MGMT_FRAME_FIXED_PART_LENGTH 0x24 + +static inline int ieee80211_is_ofdm_rate(u8 rate) +{ + switch (rate & ~IEEE80211_BASIC_RATE_MASK) { + case IEEE80211_OFDM_RATE_6MB: + case IEEE80211_OFDM_RATE_9MB: + case IEEE80211_OFDM_RATE_12MB: + case IEEE80211_OFDM_RATE_18MB: + case IEEE80211_OFDM_RATE_24MB: + case IEEE80211_OFDM_RATE_36MB: + case IEEE80211_OFDM_RATE_48MB: + case IEEE80211_OFDM_RATE_54MB: + return 1; + } + return 0; +} + + +static inline int ieee80211_network_init( + struct ieee80211_device *ieee, + struct ieee80211_probe_response *beacon, + struct ieee80211_network *network, + struct ieee80211_rx_stats *stats) +{ +#ifdef CONFIG_IEEE80211_DEBUG + char rates_str[64]; + char *p; +#endif + struct ieee80211_info_element *info_element; + u16 left; + u8 i; + + /* Pull out fixed field data */ + memcpy(network->bssid, beacon->header.addr3, ETH_ALEN); + network->capability = beacon->capability; + network->last_scanned = jiffies; + network->time_stamp[0] = beacon->time_stamp[0]; + network->time_stamp[1] = beacon->time_stamp[1]; + network->beacon_interval = beacon->beacon_interval; + /* Where to pull this? beacon->listen_interval;*/ + network->listen_interval = 0x0A; + network->rates_len = network->rates_ex_len = 0; + network->last_associate = 0; + network->ssid_len = 0; + network->flags = 0; + network->atim_window = 0; + + if (stats->freq == IEEE80211_52GHZ_BAND) { + /* for A band (No DS info) */ + network->channel = stats->received_channel; + } else + network->flags |= NETWORK_HAS_CCK; + + network->wpa_ie_len = 0; + network->rsn_ie_len = 0; + + info_element = &beacon->info_element; + left = stats->len - ((void *)info_element - (void *)beacon); + while (left >= sizeof(struct ieee80211_info_element_hdr)) { + if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) { + IEEE80211_DEBUG_SCAN("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%d left=%d.\n", + info_element->len + sizeof(struct ieee80211_info_element), + left); + return 1; + } + + switch (info_element->id) { + case MFIE_TYPE_SSID: + if (ieee80211_is_empty_essid(info_element->data, + info_element->len)) { + network->flags |= NETWORK_EMPTY_ESSID; + break; + } + + network->ssid_len = min(info_element->len, + (u8)IW_ESSID_MAX_SIZE); + memcpy(network->ssid, info_element->data, network->ssid_len); + if (network->ssid_len < IW_ESSID_MAX_SIZE) + memset(network->ssid + network->ssid_len, 0, + IW_ESSID_MAX_SIZE - network->ssid_len); + + IEEE80211_DEBUG_SCAN("MFIE_TYPE_SSID: '%s' len=%d.\n", + network->ssid, network->ssid_len); + break; + + case MFIE_TYPE_RATES: +#ifdef CONFIG_IEEE80211_DEBUG + p = rates_str; +#endif + network->rates_len = min(info_element->len, MAX_RATES_LENGTH); + for (i = 0; i < network->rates_len; i++) { + network->rates[i] = info_element->data[i]; +#ifdef CONFIG_IEEE80211_DEBUG + p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); +#endif + if (ieee80211_is_ofdm_rate(info_element->data[i])) { + network->flags |= NETWORK_HAS_OFDM; + if (info_element->data[i] & + IEEE80211_BASIC_RATE_MASK) + network->flags &= + ~NETWORK_HAS_CCK; + } + } + + IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES: '%s' (%d)\n", + rates_str, network->rates_len); + break; + + case MFIE_TYPE_RATES_EX: +#ifdef CONFIG_IEEE80211_DEBUG + p = rates_str; +#endif + network->rates_ex_len = min(info_element->len, MAX_RATES_EX_LENGTH); + for (i = 0; i < network->rates_ex_len; i++) { + network->rates_ex[i] = info_element->data[i]; +#ifdef CONFIG_IEEE80211_DEBUG + p += snprintf(p, sizeof(rates_str) - (p - rates_str), "%02X ", network->rates[i]); +#endif + if (ieee80211_is_ofdm_rate(info_element->data[i])) { + network->flags |= NETWORK_HAS_OFDM; + if (info_element->data[i] & + IEEE80211_BASIC_RATE_MASK) + network->flags &= + ~NETWORK_HAS_CCK; + } + } + + IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES_EX: '%s' (%d)\n", + rates_str, network->rates_ex_len); + break; + + case MFIE_TYPE_DS_SET: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n", + info_element->data[0]); + if (stats->freq == IEEE80211_24GHZ_BAND) + network->channel = info_element->data[0]; + break; + + case MFIE_TYPE_FH_SET: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n"); + break; + + case MFIE_TYPE_CF_SET: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_CF_SET: ignored\n"); + break; + + case MFIE_TYPE_TIM: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_TIM: ignored\n"); + break; + + case MFIE_TYPE_IBSS_SET: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_IBSS_SET: ignored\n"); + break; + + case MFIE_TYPE_CHALLENGE: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_CHALLENGE: ignored\n"); + break; + + case MFIE_TYPE_GENERIC: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", + info_element->len); + if (info_element->len >= 4 && + info_element->data[0] == 0x00 && + info_element->data[1] == 0x50 && + info_element->data[2] == 0xf2 && + info_element->data[3] == 0x01) { + network->wpa_ie_len = min(info_element->len + 2, + MAX_WPA_IE_LEN); + memcpy(network->wpa_ie, info_element, + network->wpa_ie_len); + } + break; + + case MFIE_TYPE_RSN: + IEEE80211_DEBUG_SCAN("MFIE_TYPE_RSN: %d bytes\n", + info_element->len); + network->rsn_ie_len = min(info_element->len + 2, + MAX_WPA_IE_LEN); + memcpy(network->rsn_ie, info_element, + network->rsn_ie_len); + break; + + default: + IEEE80211_DEBUG_SCAN("unsupported IE %d\n", + info_element->id); + break; + } + + left -= sizeof(struct ieee80211_info_element_hdr) + + info_element->len; + info_element = (struct ieee80211_info_element *) + &info_element->data[info_element->len]; + } + + network->mode = 0; + if (stats->freq == IEEE80211_52GHZ_BAND) + network->mode = IEEE_A; + else { + if (network->flags & NETWORK_HAS_OFDM) + network->mode |= IEEE_G; + if (network->flags & NETWORK_HAS_CCK) + network->mode |= IEEE_B; + } + + if (network->mode == 0) { + IEEE80211_DEBUG_SCAN("Filtered out '%s (" MAC_FMT ")' " + "network.\n", + escape_essid(network->ssid, + network->ssid_len), + MAC_ARG(network->bssid)); + return 1; + } + + if (ieee80211_is_empty_essid(network->ssid, network->ssid_len)) + network->flags |= NETWORK_EMPTY_ESSID; + + memcpy(&network->stats, stats, sizeof(network->stats)); + + return 0; +} + +static inline int is_same_network(struct ieee80211_network *src, + struct ieee80211_network *dst) +{ + /* A network is only a duplicate if the channel, BSSID, and ESSID + * all match. We treat all with the same BSSID and channel + * as one network */ + return ((src->ssid_len == dst->ssid_len) && + (src->channel == dst->channel) && + !memcmp(src->bssid, dst->bssid, ETH_ALEN) && + !memcmp(src->ssid, dst->ssid, src->ssid_len)); +} + +static inline void update_network(struct ieee80211_network *dst, + struct ieee80211_network *src) +{ + memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats)); + dst->capability = src->capability; + memcpy(dst->rates, src->rates, src->rates_len); + dst->rates_len = src->rates_len; + memcpy(dst->rates_ex, src->rates_ex, src->rates_ex_len); + dst->rates_ex_len = src->rates_ex_len; + + dst->mode = src->mode; + dst->flags = src->flags; + dst->time_stamp[0] = src->time_stamp[0]; + dst->time_stamp[1] = src->time_stamp[1]; + + dst->beacon_interval = src->beacon_interval; + dst->listen_interval = src->listen_interval; + dst->atim_window = src->atim_window; + + memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len); + dst->wpa_ie_len = src->wpa_ie_len; + memcpy(dst->rsn_ie, src->rsn_ie, src->rsn_ie_len); + dst->rsn_ie_len = src->rsn_ie_len; + + dst->last_scanned = jiffies; + /* dst->last_associate is not overwritten */ +} + +static inline void ieee80211_process_probe_response( + struct ieee80211_device *ieee, + struct ieee80211_probe_response *beacon, + struct ieee80211_rx_stats *stats) +{ + struct ieee80211_network network; + struct ieee80211_network *target; + struct ieee80211_network *oldest = NULL; +#ifdef CONFIG_IEEE80211_DEBUG + struct ieee80211_info_element *info_element = &beacon->info_element; +#endif + unsigned long flags; + + IEEE80211_DEBUG_SCAN( + "'%s' (" MAC_FMT "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", + escape_essid(info_element->data, info_element->len), + MAC_ARG(beacon->header.addr3), + (beacon->capability & (1<<0xf)) ? '1' : '0', + (beacon->capability & (1<<0xe)) ? '1' : '0', + (beacon->capability & (1<<0xd)) ? '1' : '0', + (beacon->capability & (1<<0xc)) ? '1' : '0', + (beacon->capability & (1<<0xb)) ? '1' : '0', + (beacon->capability & (1<<0xa)) ? '1' : '0', + (beacon->capability & (1<<0x9)) ? '1' : '0', + (beacon->capability & (1<<0x8)) ? '1' : '0', + (beacon->capability & (1<<0x7)) ? '1' : '0', + (beacon->capability & (1<<0x6)) ? '1' : '0', + (beacon->capability & (1<<0x5)) ? '1' : '0', + (beacon->capability & (1<<0x4)) ? '1' : '0', + (beacon->capability & (1<<0x3)) ? '1' : '0', + (beacon->capability & (1<<0x2)) ? '1' : '0', + (beacon->capability & (1<<0x1)) ? '1' : '0', + (beacon->capability & (1<<0x0)) ? '1' : '0'); + + if (ieee80211_network_init(ieee, beacon, &network, stats)) { + IEEE80211_DEBUG_SCAN("Dropped '%s' (" MAC_FMT ") via %s.\n", + escape_essid(info_element->data, + info_element->len), + MAC_ARG(beacon->header.addr3), + WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + IEEE80211_STYPE_PROBE_RESP ? + "PROBE RESPONSE" : "BEACON"); + return; + } + + /* The network parsed correctly -- so now we scan our known networks + * to see if we can find it in our list. + * + * NOTE: This search is definitely not optimized. Once its doing + * the "right thing" we'll optimize it for efficiency if + * necessary */ + + /* Search for this entry in the list and update it if it is + * already there. */ + + spin_lock_irqsave(&ieee->lock, flags); + + list_for_each_entry(target, &ieee->network_list, list) { + if (is_same_network(target, &network)) + break; + + if ((oldest == NULL) || + (target->last_scanned < oldest->last_scanned)) + oldest = target; + } + + /* If we didn't find a match, then get a new network slot to initialize + * with this beacon's information */ + if (&target->list == &ieee->network_list) { + if (list_empty(&ieee->network_free_list)) { + /* If there are no more slots, expire the oldest */ + list_del(&oldest->list); + target = oldest; + IEEE80211_DEBUG_SCAN("Expired '%s' (" MAC_FMT ") from " + "network list.\n", + escape_essid(target->ssid, + target->ssid_len), + MAC_ARG(target->bssid)); + } else { + /* Otherwise just pull from the free list */ + target = list_entry(ieee->network_free_list.next, + struct ieee80211_network, list); + list_del(ieee->network_free_list.next); + } + + +#ifdef CONFIG_IEEE80211_DEBUG + IEEE80211_DEBUG_SCAN("Adding '%s' (" MAC_FMT ") via %s.\n", + escape_essid(network.ssid, + network.ssid_len), + MAC_ARG(network.bssid), + WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + IEEE80211_STYPE_PROBE_RESP ? + "PROBE RESPONSE" : "BEACON"); +#endif + memcpy(target, &network, sizeof(*target)); + list_add_tail(&target->list, &ieee->network_list); + } else { + IEEE80211_DEBUG_SCAN("Updating '%s' (" MAC_FMT ") via %s.\n", + escape_essid(target->ssid, + target->ssid_len), + MAC_ARG(target->bssid), + WLAN_FC_GET_STYPE(beacon->header.frame_ctl) == + IEEE80211_STYPE_PROBE_RESP ? + "PROBE RESPONSE" : "BEACON"); + update_network(target, &network); + } + + spin_unlock_irqrestore(&ieee->lock, flags); +} + +void ieee80211_rx_mgt(struct ieee80211_device *ieee, + struct ieee80211_hdr *header, + struct ieee80211_rx_stats *stats) +{ + switch (WLAN_FC_GET_STYPE(header->frame_ctl)) { + case IEEE80211_STYPE_ASSOC_RESP: + IEEE80211_DEBUG_MGMT("received ASSOCIATION RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(header->frame_ctl)); + break; + + case IEEE80211_STYPE_REASSOC_RESP: + IEEE80211_DEBUG_MGMT("received REASSOCIATION RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(header->frame_ctl)); + break; + + case IEEE80211_STYPE_PROBE_RESP: + IEEE80211_DEBUG_MGMT("received PROBE RESPONSE (%d)\n", + WLAN_FC_GET_STYPE(header->frame_ctl)); + IEEE80211_DEBUG_SCAN("Probe response\n"); + ieee80211_process_probe_response( + ieee, (struct ieee80211_probe_response *)header, stats); + break; + + case IEEE80211_STYPE_BEACON: + IEEE80211_DEBUG_MGMT("received BEACON (%d)\n", + WLAN_FC_GET_STYPE(header->frame_ctl)); + IEEE80211_DEBUG_SCAN("Beacon\n"); + ieee80211_process_probe_response( + ieee, (struct ieee80211_probe_response *)header, stats); + break; + + default: + IEEE80211_DEBUG_MGMT("received UNKNOWN (%d)\n", + WLAN_FC_GET_STYPE(header->frame_ctl)); + IEEE80211_WARNING("%s: Unknown management packet: %d\n", + ieee->dev->name, + WLAN_FC_GET_STYPE(header->frame_ctl)); + break; + } +} + + +EXPORT_SYMBOL(ieee80211_rx_mgt); +EXPORT_SYMBOL(ieee80211_rx); diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c new file mode 100644 index 0000000..d70e6b8 --- /dev/null +++ b/net/ieee80211/ieee80211_tx.c @@ -0,0 +1,448 @@ +/****************************************************************************** + + Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved. + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + + +/* + + +802.11 Data Frame + + ,-------------------------------------------------------------------. +Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 | + |------|------|---------|---------|---------|------|---------|------| +Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | Frame | fcs | + | | tion | (BSSID) | | | ence | data | | + `--------------------------------------------------| |------' +Total: 28 non-data bytes `----.----' + | + .- 'Frame data' expands to <---------------------------' + | + V + ,---------------------------------------------------. +Bytes | 1 | 1 | 1 | 3 | 2 | 0-2304 | + |------|------|---------|----------|------|---------| +Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP | + | DSAP | SSAP | | | | Packet | + | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8| | | + `-----------------------------------------| | +Total: 8 non-data bytes `----.----' + | + .- 'IP Packet' expands, if WEP enabled, to <--' + | + V + ,-----------------------. +Bytes | 4 | 0-2296 | 4 | + |-----|-----------|-----| +Desc. | IV | Encrypted | ICV | + | | IP Packet | | + `-----------------------' +Total: 8 non-data bytes + + +802.3 Ethernet Data Frame + + ,-----------------------------------------. +Bytes | 6 | 6 | 2 | Variable | 4 | + |-------|-------|------|-----------|------| +Desc. | Dest. | Source| Type | IP Packet | fcs | + | MAC | MAC | | | | + `-----------------------------------------' +Total: 18 non-data bytes + +In the event that fragmentation is required, the incoming payload is split into +N parts of size ieee->fts. The first fragment contains the SNAP header and the +remaining packets are just data. + +If encryption is enabled, each fragment payload size is reduced by enough space +to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP) +So if you have 1500 bytes of payload with ieee->fts set to 500 without +encryption it will take 3 frames. With WEP it will take 4 frames as the +payload of each frame is reduced to 492 bytes. + +* SKB visualization +* +* ,- skb->data +* | +* | ETHERNET HEADER ,-<-- PAYLOAD +* | | 14 bytes from skb->data +* | 2 bytes for Type --> ,T. | (sizeof ethhdr) +* | | | | +* |,-Dest.--. ,--Src.---. | | | +* | 6 bytes| | 6 bytes | | | | +* v | | | | | | +* 0 | v 1 | v | v 2 +* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 +* ^ | ^ | ^ | +* | | | | | | +* | | | | `T' <---- 2 bytes for Type +* | | | | +* | | '---SNAP--' <-------- 6 bytes for SNAP +* | | +* `-IV--' <-------------------- 4 bytes for IV (WEP) +* +* SNAP HEADER +* +*/ + +static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 }; +static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 }; + +static inline int ieee80211_put_snap(u8 *data, u16 h_proto) +{ + struct ieee80211_snap_hdr *snap; + u8 *oui; + + snap = (struct ieee80211_snap_hdr *)data; + snap->dsap = 0xaa; + snap->ssap = 0xaa; + snap->ctrl = 0x03; + + if (h_proto == 0x8137 || h_proto == 0x80f3) + oui = P802_1H_OUI; + else + oui = RFC1042_OUI; + snap->oui[0] = oui[0]; + snap->oui[1] = oui[1]; + snap->oui[2] = oui[2]; + + *(u16 *)(data + SNAP_SIZE) = htons(h_proto); + + return SNAP_SIZE + sizeof(u16); +} + +static inline int ieee80211_encrypt_fragment( + struct ieee80211_device *ieee, + struct sk_buff *frag, + int hdr_len) +{ + struct ieee80211_crypt_data* crypt = ieee->crypt[ieee->tx_keyidx]; + int res; + +#ifdef CONFIG_IEEE80211_CRYPT_TKIP + struct ieee80211_hdr *header; + + if (ieee->tkip_countermeasures && + crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) { + header = (struct ieee80211_hdr *) frag->data; + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " + "TX packet to " MAC_FMT "\n", + ieee->dev->name, MAC_ARG(header->addr1)); + } + return -1; + } +#endif + /* To encrypt, frame format is: + * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */ + + // PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption. + /* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so + * call both MSDU and MPDU encryption functions from here. */ + atomic_inc(&crypt->refcnt); + res = 0; + if (crypt->ops->encrypt_msdu) + res = crypt->ops->encrypt_msdu(frag, hdr_len, crypt->priv); + if (res == 0 && crypt->ops->encrypt_mpdu) + res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv); + + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_INFO "%s: Encryption failed: len=%d.\n", + ieee->dev->name, frag->len); + ieee->ieee_stats.tx_discards++; + return -1; + } + + return 0; +} + + +void ieee80211_txb_free(struct ieee80211_txb *txb) { + int i; + if (unlikely(!txb)) + return; + for (i = 0; i < txb->nr_frags; i++) + if (txb->fragments[i]) + dev_kfree_skb_any(txb->fragments[i]); + kfree(txb); +} + +struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size, + int gfp_mask) +{ + struct ieee80211_txb *txb; + int i; + txb = kmalloc( + sizeof(struct ieee80211_txb) + (sizeof(u8*) * nr_frags), + gfp_mask); + if (!txb) + return NULL; + + memset(txb, sizeof(struct ieee80211_txb), 0); + txb->nr_frags = nr_frags; + txb->frag_size = txb_size; + + for (i = 0; i < nr_frags; i++) { + txb->fragments[i] = dev_alloc_skb(txb_size); + if (unlikely(!txb->fragments[i])) { + i--; + break; + } + } + if (unlikely(i != nr_frags)) { + while (i >= 0) + dev_kfree_skb_any(txb->fragments[i--]); + kfree(txb); + return NULL; + } + return txb; +} + +/* SKBs are added to the ieee->tx_queue. */ +int ieee80211_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct ieee80211_device *ieee = netdev_priv(dev); + struct ieee80211_txb *txb = NULL; + struct ieee80211_hdr *frag_hdr; + int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size; + unsigned long flags; + struct net_device_stats *stats = &ieee->stats; + int ether_type, encrypt; + int bytes, fc, hdr_len; + struct sk_buff *skb_frag; + struct ieee80211_hdr header = { /* Ensure zero initialized */ + .duration_id = 0, + .seq_ctl = 0 + }; + u8 dest[ETH_ALEN], src[ETH_ALEN]; + + struct ieee80211_crypt_data* crypt; + + spin_lock_irqsave(&ieee->lock, flags); + + /* If there is no driver handler to take the TXB, dont' bother + * creating it... */ + if (!ieee->hard_start_xmit) { + printk(KERN_WARNING "%s: No xmit handler.\n", + ieee->dev->name); + goto success; + } + + if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) { + printk(KERN_WARNING "%s: skb too small (%d).\n", + ieee->dev->name, skb->len); + goto success; + } + + ether_type = ntohs(((struct ethhdr *)skb->data)->h_proto); + + crypt = ieee->crypt[ieee->tx_keyidx]; + + encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) && + ieee->host_encrypt && crypt && crypt->ops; + + if (!encrypt && ieee->ieee802_1x && + ieee->drop_unencrypted && ether_type != ETH_P_PAE) { + stats->tx_dropped++; + goto success; + } + +#ifdef CONFIG_IEEE80211_DEBUG + if (crypt && !encrypt && ether_type == ETH_P_PAE) { + struct eapol *eap = (struct eapol *)(skb->data + + sizeof(struct ethhdr) - SNAP_SIZE - sizeof(u16)); + IEEE80211_DEBUG_EAP("TX: IEEE 802.11 EAPOL frame: %s\n", + eap_get_type(eap->type)); + } +#endif + + /* Save source and destination addresses */ + memcpy(&dest, skb->data, ETH_ALEN); + memcpy(&src, skb->data+ETH_ALEN, ETH_ALEN); + + /* Advance the SKB to the start of the payload */ + skb_pull(skb, sizeof(struct ethhdr)); + + /* Determine total amount of storage required for TXB packets */ + bytes = skb->len + SNAP_SIZE + sizeof(u16); + + if (encrypt) + fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA | + IEEE80211_FCTL_WEP; + else + fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA; + + if (ieee->iw_mode == IW_MODE_INFRA) { + fc |= IEEE80211_FCTL_TODS; + /* To DS: Addr1 = BSSID, Addr2 = SA, + Addr3 = DA */ + memcpy(&header.addr1, ieee->bssid, ETH_ALEN); + memcpy(&header.addr2, &src, ETH_ALEN); + memcpy(&header.addr3, &dest, ETH_ALEN); + } else if (ieee->iw_mode == IW_MODE_ADHOC) { + /* not From/To DS: Addr1 = DA, Addr2 = SA, + Addr3 = BSSID */ + memcpy(&header.addr1, dest, ETH_ALEN); + memcpy(&header.addr2, src, ETH_ALEN); + memcpy(&header.addr3, ieee->bssid, ETH_ALEN); + } + header.frame_ctl = cpu_to_le16(fc); + hdr_len = IEEE80211_3ADDR_LEN; + + /* Determine fragmentation size based on destination (multicast + * and broadcast are not fragmented) */ + if (is_multicast_ether_addr(dest) || + is_broadcast_ether_addr(dest)) + frag_size = MAX_FRAG_THRESHOLD; + else + frag_size = ieee->fts; + + /* Determine amount of payload per fragment. Regardless of if + * this stack is providing the full 802.11 header, one will + * eventually be affixed to this fragment -- so we must account for + * it when determining the amount of payload space. */ + bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN; + if (ieee->config & + (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS)) + bytes_per_frag -= IEEE80211_FCS_LEN; + + /* Each fragment may need to have room for encryptiong pre/postfix */ + if (encrypt) + bytes_per_frag -= crypt->ops->extra_prefix_len + + crypt->ops->extra_postfix_len; + + /* Number of fragments is the total bytes_per_frag / + * payload_per_fragment */ + nr_frags = bytes / bytes_per_frag; + bytes_last_frag = bytes % bytes_per_frag; + if (bytes_last_frag) + nr_frags++; + else + bytes_last_frag = bytes_per_frag; + + /* When we allocate the TXB we allocate enough space for the reserve + * and full fragment bytes (bytes_per_frag doesn't include prefix, + * postfix, header, FCS, etc.) */ + txb = ieee80211_alloc_txb(nr_frags, frag_size, GFP_ATOMIC); + if (unlikely(!txb)) { + printk(KERN_WARNING "%s: Could not allocate TXB\n", + ieee->dev->name); + goto failed; + } + txb->encrypted = encrypt; + txb->payload_size = bytes; + + for (i = 0; i < nr_frags; i++) { + skb_frag = txb->fragments[i]; + + if (encrypt) + skb_reserve(skb_frag, crypt->ops->extra_prefix_len); + + frag_hdr = (struct ieee80211_hdr *)skb_put(skb_frag, hdr_len); + memcpy(frag_hdr, &header, hdr_len); + + /* If this is not the last fragment, then add the MOREFRAGS + * bit to the frame control */ + if (i != nr_frags - 1) { + frag_hdr->frame_ctl = cpu_to_le16( + fc | IEEE80211_FCTL_MOREFRAGS); + bytes = bytes_per_frag; + } else { + /* The last fragment takes the remaining length */ + bytes = bytes_last_frag; + } + + /* Put a SNAP header on the first fragment */ + if (i == 0) { + ieee80211_put_snap( + skb_put(skb_frag, SNAP_SIZE + sizeof(u16)), + ether_type); + bytes -= SNAP_SIZE + sizeof(u16); + } + + memcpy(skb_put(skb_frag, bytes), skb->data, bytes); + + /* Advance the SKB... */ + skb_pull(skb, bytes); + + /* Encryption routine will move the header forward in order + * to insert the IV between the header and the payload */ + if (encrypt) + ieee80211_encrypt_fragment(ieee, skb_frag, hdr_len); + if (ieee->config & + (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS)) + skb_put(skb_frag, 4); + } + + + success: + spin_unlock_irqrestore(&ieee->lock, flags); + + dev_kfree_skb_any(skb); + + if (txb) { + if ((*ieee->hard_start_xmit)(txb, dev) == 0) { + stats->tx_packets++; + stats->tx_bytes += txb->payload_size; + return 0; + } + ieee80211_txb_free(txb); + } + + return 0; + + failed: + spin_unlock_irqrestore(&ieee->lock, flags); + netif_stop_queue(dev); + stats->tx_errors++; + return 1; + +} + +EXPORT_SYMBOL(ieee80211_txb_free); diff --git a/net/ieee80211/ieee80211_wx.c b/net/ieee80211/ieee80211_wx.c new file mode 100644 index 0000000..25a868c --- /dev/null +++ b/net/ieee80211/ieee80211_wx.c @@ -0,0 +1,471 @@ +/****************************************************************************** + + Copyright(c) 2004 Intel Corporation. All rights reserved. + + Portions of this file are based on the WEP enablement code provided by the + Host AP project hostap-drivers v0.1.3 + Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + + Copyright (c) 2002-2003, Jouni Malinen + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program; if not, write to the Free Software Foundation, Inc., 59 + Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + The full GNU General Public License is included in this distribution in the + file called LICENSE. + + Contact Information: + James P. Ketrenos + Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + +******************************************************************************/ +#include +#include +#include +#include + +#include +static const char *ieee80211_modes[] = { + "?", "a", "b", "ab", "g", "ag", "bg", "abg" +}; + +#define MAX_CUSTOM_LEN 64 +static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee, + char *start, char *stop, + struct ieee80211_network *network) +{ + char custom[MAX_CUSTOM_LEN]; + char *p; + struct iw_event iwe; + int i, j; + u8 max_rate, rate; + + /* First entry *MUST* be the AP MAC address */ + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN); + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_ADDR_LEN); + + /* Remaining entries will be displayed in the order we provide them */ + + /* Add the ESSID */ + iwe.cmd = SIOCGIWESSID; + iwe.u.data.flags = 1; + if (network->flags & NETWORK_EMPTY_ESSID) { + iwe.u.data.length = sizeof(""); + start = iwe_stream_add_point(start, stop, &iwe, ""); + } else { + iwe.u.data.length = min(network->ssid_len, (u8)32); + start = iwe_stream_add_point(start, stop, &iwe, network->ssid); + } + + /* Add the protocol name */ + iwe.cmd = SIOCGIWNAME; + snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", ieee80211_modes[network->mode]); + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_CHAR_LEN); + + /* Add mode */ + iwe.cmd = SIOCGIWMODE; + if (network->capability & + (WLAN_CAPABILITY_BSS | WLAN_CAPABILITY_IBSS)) { + if (network->capability & WLAN_CAPABILITY_BSS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + + start = iwe_stream_add_event(start, stop, &iwe, + IW_EV_UINT_LEN); + } + + /* Add frequency/channel */ + iwe.cmd = SIOCGIWFREQ; +/* iwe.u.freq.m = ieee80211_frequency(network->channel, network->mode); + iwe.u.freq.e = 3; */ + iwe.u.freq.m = network->channel; + iwe.u.freq.e = 0; + iwe.u.freq.i = 0; + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN); + + /* Add encryption capability */ + iwe.cmd = SIOCGIWENCODE; + if (network->capability & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + start = iwe_stream_add_point(start, stop, &iwe, network->ssid); + + /* Add basic and extended rates */ + max_rate = 0; + p = custom; + p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): "); + for (i = 0, j = 0; i < network->rates_len; ) { + if (j < network->rates_ex_len && + ((network->rates_ex[j] & 0x7F) < + (network->rates[i] & 0x7F))) + rate = network->rates_ex[j++] & 0x7F; + else + rate = network->rates[i++] & 0x7F; + if (rate > max_rate) + max_rate = rate; + p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), + "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); + } + for (; j < network->rates_ex_len; j++) { + rate = network->rates_ex[j] & 0x7F; + p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), + "%d%s ", rate >> 1, (rate & 1) ? ".5" : ""); + if (rate > max_rate) + max_rate = rate; + } + + iwe.cmd = SIOCGIWRATE; + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + iwe.u.bitrate.value = max_rate * 500000; + start = iwe_stream_add_event(start, stop, &iwe, + IW_EV_PARAM_LEN); + + iwe.cmd = IWEVCUSTOM; + iwe.u.data.length = p - custom; + if (iwe.u.data.length) + start = iwe_stream_add_point(start, stop, &iwe, custom); + + /* Add quality statistics */ + /* TODO: Fix these values... */ + iwe.cmd = IWEVQUAL; + iwe.u.qual.qual = network->stats.signal; + iwe.u.qual.level = network->stats.rssi; + iwe.u.qual.noise = network->stats.noise; + iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK; + if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) + iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; + if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) + iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; + if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL)) + iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID; + + start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN); + + iwe.cmd = IWEVCUSTOM; + p = custom; + + iwe.u.data.length = p - custom; + if (iwe.u.data.length) + start = iwe_stream_add_point(start, stop, &iwe, custom); + + if (ieee->wpa_enabled && network->wpa_ie_len){ + char buf[MAX_WPA_IE_LEN * 2 + 30]; + + u8 *p = buf; + p += sprintf(p, "wpa_ie="); + for (i = 0; i < network->wpa_ie_len; i++) { + p += sprintf(p, "%02x", network->wpa_ie[i]); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + iwe.u.data.length = strlen(buf); + start = iwe_stream_add_point(start, stop, &iwe, buf); + } + + if (ieee->wpa_enabled && network->rsn_ie_len){ + char buf[MAX_WPA_IE_LEN * 2 + 30]; + + u8 *p = buf; + p += sprintf(p, "rsn_ie="); + for (i = 0; i < network->rsn_ie_len; i++) { + p += sprintf(p, "%02x", network->rsn_ie[i]); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + iwe.u.data.length = strlen(buf); + start = iwe_stream_add_point(start, stop, &iwe, buf); + } + + /* Add EXTRA: Age to display seconds since last beacon/probe response + * for given network. */ + iwe.cmd = IWEVCUSTOM; + p = custom; + p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), + " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100)); + iwe.u.data.length = p - custom; + if (iwe.u.data.length) + start = iwe_stream_add_point(start, stop, &iwe, custom); + + + return start; +} + +int ieee80211_wx_get_scan(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct ieee80211_network *network; + unsigned long flags; + + char *ev = extra; + char *stop = ev + IW_SCAN_MAX_DATA; + int i = 0; + + IEEE80211_DEBUG_WX("Getting scan\n"); + + spin_lock_irqsave(&ieee->lock, flags); + + list_for_each_entry(network, &ieee->network_list, list) { + i++; + if (ieee->scan_age == 0 || + time_after(network->last_scanned + ieee->scan_age, jiffies)) + ev = ipw2100_translate_scan(ieee, ev, stop, network); + else + IEEE80211_DEBUG_SCAN( + "Not showing network '%s (" + MAC_FMT ")' due to age (%lums).\n", + escape_essid(network->ssid, + network->ssid_len), + MAC_ARG(network->bssid), + (jiffies - network->last_scanned) / (HZ / 100)); + } + + spin_unlock_irqrestore(&ieee->lock, flags); + + wrqu->data.length = ev - extra; + wrqu->data.flags = 0; + + IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i); + + return 0; +} + +int ieee80211_wx_set_encode(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *keybuf) +{ + struct iw_point *erq = &(wrqu->encoding); + struct net_device *dev = ieee->dev; + struct ieee80211_security sec = { + .flags = 0 + }; + int i, key, key_provided, len; + struct ieee80211_crypt_data **crypt; + + IEEE80211_DEBUG_WX("SET_ENCODE\n"); + + key = erq->flags & IW_ENCODE_INDEX; + if (key) { + if (key > WEP_KEYS) + return -EINVAL; + key--; + key_provided = 1; + } else { + key_provided = 0; + key = ieee->tx_keyidx; + } + + IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ? + "provided" : "default"); + + crypt = &ieee->crypt[key]; + + if (erq->flags & IW_ENCODE_DISABLED) { + if (key_provided && *crypt) { + IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n", + key); + ieee80211_crypt_delayed_deinit(ieee, crypt); + } else + IEEE80211_DEBUG_WX("Disabling encryption.\n"); + + /* Check all the keys to see if any are still configured, + * and if no key index was provided, de-init them all */ + for (i = 0; i < WEP_KEYS; i++) { + if (ieee->crypt[i] != NULL) { + if (key_provided) + break; + ieee80211_crypt_delayed_deinit( + ieee, &ieee->crypt[i]); + } + } + + if (i == WEP_KEYS) { + sec.enabled = 0; + sec.level = SEC_LEVEL_0; + sec.flags |= SEC_ENABLED | SEC_LEVEL; + } + + goto done; + } + + + + sec.enabled = 1; + sec.flags |= SEC_ENABLED; + + if (*crypt != NULL && (*crypt)->ops != NULL && + strcmp((*crypt)->ops->name, "WEP") != 0) { + /* changing to use WEP; deinit previously used algorithm + * on this key */ + ieee80211_crypt_delayed_deinit(ieee, crypt); + } + + if (*crypt == NULL) { + struct ieee80211_crypt_data *new_crypt; + + /* take WEP into use */ + new_crypt = kmalloc(sizeof(struct ieee80211_crypt_data), + GFP_KERNEL); + if (new_crypt == NULL) + return -ENOMEM; + memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data)); + new_crypt->ops = ieee80211_get_crypto_ops("WEP"); + if (!new_crypt->ops) { + request_module("ieee80211_crypt_wep"); + new_crypt->ops = ieee80211_get_crypto_ops("WEP"); + } + + if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) + new_crypt->priv = new_crypt->ops->init(key); + + if (!new_crypt->ops || !new_crypt->priv) { + kfree(new_crypt); + new_crypt = NULL; + + printk(KERN_WARNING "%s: could not initialize WEP: " + "load module ieee80211_crypt_wep\n", + dev->name); + return -EOPNOTSUPP; + } + *crypt = new_crypt; + } + + /* If a new key was provided, set it up */ + if (erq->length > 0) { + len = erq->length <= 5 ? 5 : 13; + memcpy(sec.keys[key], keybuf, erq->length); + if (len > erq->length) + memset(sec.keys[key] + erq->length, 0, + len - erq->length); + IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n", + key, escape_essid(sec.keys[key], len), + erq->length, len); + sec.key_sizes[key] = len; + (*crypt)->ops->set_key(sec.keys[key], len, NULL, + (*crypt)->priv); + sec.flags |= (1 << key); + /* This ensures a key will be activated if no key is + * explicitely set */ + if (key == sec.active_key) + sec.flags |= SEC_ACTIVE_KEY; + } else { + len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, + NULL, (*crypt)->priv); + if (len == 0) { + /* Set a default key of all 0 */ + IEEE80211_DEBUG_WX("Setting key %d to all zero.\n", + key); + memset(sec.keys[key], 0, 13); + (*crypt)->ops->set_key(sec.keys[key], 13, NULL, + (*crypt)->priv); + sec.key_sizes[key] = 13; + sec.flags |= (1 << key); + } + + /* No key data - just set the default TX key index */ + if (key_provided) { + IEEE80211_DEBUG_WX( + "Setting key %d to default Tx key.\n", key); + ieee->tx_keyidx = key; + sec.active_key = key; + sec.flags |= SEC_ACTIVE_KEY; + } + } + + done: + ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); + sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY; + sec.flags |= SEC_AUTH_MODE; + IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ? + "OPEN" : "SHARED KEY"); + + /* For now we just support WEP, so only set that security level... + * TODO: When WPA is added this is one place that needs to change */ + sec.flags |= SEC_LEVEL; + sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ + + if (ieee->set_security) + ieee->set_security(dev, &sec); + + /* Do not reset port if card is in Managed mode since resetting will + * generate new IEEE 802.11 authentication which may end up in looping + * with IEEE 802.1X. If your hardware requires a reset after WEP + * configuration (for example... Prism2), implement the reset_port in + * the callbacks structures used to initialize the 802.11 stack. */ + if (ieee->reset_on_keychange && + ieee->iw_mode != IW_MODE_INFRA && + ieee->reset_port && ieee->reset_port(dev)) { + printk(KERN_DEBUG "%s: reset_port failed\n", dev->name); + return -EINVAL; + } + return 0; +} + +int ieee80211_wx_get_encode(struct ieee80211_device *ieee, + struct iw_request_info *info, + union iwreq_data *wrqu, char *keybuf) +{ + struct iw_point *erq = &(wrqu->encoding); + int len, key; + struct ieee80211_crypt_data *crypt; + + IEEE80211_DEBUG_WX("GET_ENCODE\n"); + + key = erq->flags & IW_ENCODE_INDEX; + if (key) { + if (key > WEP_KEYS) + return -EINVAL; + key--; + } else + key = ieee->tx_keyidx; + + crypt = ieee->crypt[key]; + erq->flags = key + 1; + + if (crypt == NULL || crypt->ops == NULL) { + erq->length = 0; + erq->flags |= IW_ENCODE_DISABLED; + return 0; + } + + if (strcmp(crypt->ops->name, "WEP") != 0) { + /* only WEP is supported with wireless extensions, so just + * report that encryption is used */ + erq->length = 0; + erq->flags |= IW_ENCODE_ENABLED; + return 0; + } + + len = crypt->ops->get_key(keybuf, WEP_KEY_LEN, NULL, crypt->priv); + erq->length = (len >= 0 ? len : 0); + + erq->flags |= IW_ENCODE_ENABLED; + + if (ieee->open_wep) + erq->flags |= IW_ENCODE_OPEN; + else + erq->flags |= IW_ENCODE_RESTRICTED; + + return 0; +} + +EXPORT_SYMBOL(ieee80211_wx_get_scan); +EXPORT_SYMBOL(ieee80211_wx_set_encode); +EXPORT_SYMBOL(ieee80211_wx_get_encode); -- cgit v0.10.2 From ff1d2767d5a43c85f944e86a45284b721f66196c Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Thu, 12 May 2005 22:54:16 -0400 Subject: Add HostAP wireless driver. Includes minor cleanups from Adrian Bunk . diff --git a/MAINTAINERS b/MAINTAINERS index 5b84833..e535471 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -965,6 +965,13 @@ M: mike.miller@hp.com L: iss_storagedev@hp.com S: Supported +HOST AP DRIVER +P: Jouni Malinen +M: jkmaline@cc.hut.fi +L: hostap@shmoo.com +W: http://hostap.epitest.fi/ +S: Maintained + HP100: Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series P: Jaroslav Kysela M: perex@suse.cz diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig index 0aaa12c..a60866d 100644 --- a/drivers/net/wireless/Kconfig +++ b/drivers/net/wireless/Kconfig @@ -355,6 +355,8 @@ config PRISM54 say M here and read . The module will be called prism54.ko. +source "drivers/net/wireless/hostap/Kconfig" + # yes, this works even when no drivers are selected config NET_WIRELESS bool diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile index 2b87841..6c9cb0e 100644 --- a/drivers/net/wireless/Makefile +++ b/drivers/net/wireless/Makefile @@ -28,6 +28,8 @@ obj-$(CONFIG_PCMCIA_ATMEL) += atmel_cs.o obj-$(CONFIG_PRISM54) += prism54/ +obj-$(CONFIG_HOSTAP) += hostap/ + # 16-bit wireless PCMCIA client drivers obj-$(CONFIG_PCMCIA_RAYCS) += ray_cs.o obj-$(CONFIG_PCMCIA_WL3501) += wl3501_cs.o diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 463c789..e3168a1 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -1040,7 +1040,7 @@ typedef struct { u16 status; } WifiCtlHdr; -WifiCtlHdr wifictlhdr8023 = { +static WifiCtlHdr wifictlhdr8023 = { .ctlhdr = { .ctl = HOST_DONT_RLSE, } @@ -1111,13 +1111,13 @@ static int airo_thread(void *data); static void timer_func( struct net_device *dev ); static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); #ifdef WIRELESS_EXT -struct iw_statistics *airo_get_wireless_stats (struct net_device *dev); +static struct iw_statistics *airo_get_wireless_stats (struct net_device *dev); static void airo_read_wireless_stats (struct airo_info *local); #endif /* WIRELESS_EXT */ #ifdef CISCO_EXT static int readrids(struct net_device *dev, aironet_ioctl *comp); static int writerids(struct net_device *dev, aironet_ioctl *comp); -int flashcard(struct net_device *dev, aironet_ioctl *comp); +static int flashcard(struct net_device *dev, aironet_ioctl *comp); #endif /* CISCO_EXT */ #ifdef MICSUPPORT static void micinit(struct airo_info *ai); @@ -1223,6 +1223,12 @@ static int setup_proc_entry( struct net_device *dev, static int takedown_proc_entry( struct net_device *dev, struct airo_info *apriv ); +static int cmdreset(struct airo_info *ai); +static int setflashmode (struct airo_info *ai); +static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime); +static int flashputbuf(struct airo_info *ai); +static int flashrestart(struct airo_info *ai,struct net_device *dev); + #ifdef MICSUPPORT /*********************************************************************** * MIC ROUTINES * @@ -1231,10 +1237,11 @@ static int takedown_proc_entry( struct net_device *dev, static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq); static void MoveWindow(miccntx *context, u32 micSeq); -void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *); -void emmh32_init(emmh32_context *context); -void emmh32_update(emmh32_context *context, u8 *pOctets, int len); -void emmh32_final(emmh32_context *context, u8 digest[4]); +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *); +static void emmh32_init(emmh32_context *context); +static void emmh32_update(emmh32_context *context, u8 *pOctets, int len); +static void emmh32_final(emmh32_context *context, u8 digest[4]); +static int flashpchar(struct airo_info *ai,int byte,int dwelltime); /* micinit - Initialize mic seed */ @@ -1312,7 +1319,7 @@ static int micsetup(struct airo_info *ai) { return SUCCESS; } -char micsnap[]= {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02}; +static char micsnap[] = {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02}; /*=========================================================================== * Description: Mic a packet @@ -1567,7 +1574,7 @@ static void MoveWindow(miccntx *context, u32 micSeq) static unsigned char aes_counter[16]; /* expand the key to fill the MMH coefficient array */ -void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm) +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm) { /* take the keying material, expand if necessary, truncate at 16-bytes */ /* run through AES counter mode to generate context->coeff[] */ @@ -1599,7 +1606,7 @@ void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto } /* prepare for calculation of a new mic */ -void emmh32_init(emmh32_context *context) +static void emmh32_init(emmh32_context *context) { /* prepare for new mic calculation */ context->accum = 0; @@ -1607,7 +1614,7 @@ void emmh32_init(emmh32_context *context) } /* add some bytes to the mic calculation */ -void emmh32_update(emmh32_context *context, u8 *pOctets, int len) +static void emmh32_update(emmh32_context *context, u8 *pOctets, int len) { int coeff_position, byte_position; @@ -1649,7 +1656,7 @@ void emmh32_update(emmh32_context *context, u8 *pOctets, int len) static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L }; /* calculate the mic */ -void emmh32_final(emmh32_context *context, u8 digest[4]) +static void emmh32_final(emmh32_context *context, u8 digest[4]) { int coeff_position, byte_position; u32 val; @@ -2251,7 +2258,7 @@ static void airo_read_stats(struct airo_info *ai) { ai->stats.rx_fifo_errors = vals[0]; } -struct net_device_stats *airo_get_stats(struct net_device *dev) +static struct net_device_stats *airo_get_stats(struct net_device *dev) { struct airo_info *local = dev->priv; @@ -2410,7 +2417,7 @@ EXPORT_SYMBOL(stop_airo_card); static int add_airo_dev( struct net_device *dev ); -int wll_header_parse(struct sk_buff *skb, unsigned char *haddr) +static int wll_header_parse(struct sk_buff *skb, unsigned char *haddr) { memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); return ETH_ALEN; @@ -2677,7 +2684,7 @@ static struct net_device *init_wifidev(struct airo_info *ai, return dev; } -int reset_card( struct net_device *dev , int lock) { +static int reset_card( struct net_device *dev , int lock) { struct airo_info *ai = dev->priv; if (lock && down_interruptible(&ai->sem)) @@ -2692,9 +2699,9 @@ int reset_card( struct net_device *dev , int lock) { return 0; } -struct net_device *_init_airo_card( unsigned short irq, int port, - int is_pcmcia, struct pci_dev *pci, - struct device *dmdev ) +static struct net_device *_init_airo_card( unsigned short irq, int port, + int is_pcmcia, struct pci_dev *pci, + struct device *dmdev ) { struct net_device *dev; struct airo_info *ai; @@ -7177,7 +7184,7 @@ static void airo_read_wireless_stats(struct airo_info *local) local->wstats.miss.beacon = vals[34]; } -struct iw_statistics *airo_get_wireless_stats(struct net_device *dev) +static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev) { struct airo_info *local = dev->priv; @@ -7392,14 +7399,8 @@ static int writerids(struct net_device *dev, aironet_ioctl *comp) { * Flash command switch table */ -int flashcard(struct net_device *dev, aironet_ioctl *comp) { +static int flashcard(struct net_device *dev, aironet_ioctl *comp) { int z; - int cmdreset(struct airo_info *); - int setflashmode(struct airo_info *); - int flashgchar(struct airo_info *,int,int); - int flashpchar(struct airo_info *,int,int); - int flashputbuf(struct airo_info *); - int flashrestart(struct airo_info *,struct net_device *); /* Only super-user can modify flash */ if (!capable(CAP_NET_ADMIN)) @@ -7457,7 +7458,7 @@ int flashcard(struct net_device *dev, aironet_ioctl *comp) { * card. */ -int cmdreset(struct airo_info *ai) { +static int cmdreset(struct airo_info *ai) { disable_MAC(ai, 1); if(!waitbusy (ai)){ @@ -7481,7 +7482,7 @@ int cmdreset(struct airo_info *ai) { * mode */ -int setflashmode (struct airo_info *ai) { +static int setflashmode (struct airo_info *ai) { set_bit (FLAG_FLASHING, &ai->flags); OUT4500(ai, SWS0, FLASH_COMMAND); @@ -7508,7 +7509,7 @@ int setflashmode (struct airo_info *ai) { * x 50us for echo . */ -int flashpchar(struct airo_info *ai,int byte,int dwelltime) { +static int flashpchar(struct airo_info *ai,int byte,int dwelltime) { int echo; int waittime; @@ -7548,7 +7549,7 @@ int flashpchar(struct airo_info *ai,int byte,int dwelltime) { * Get a character from the card matching matchbyte * Step 3) */ -int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){ +static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){ int rchar; unsigned char rbyte=0; @@ -7579,7 +7580,7 @@ int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){ * send to the card */ -int flashputbuf(struct airo_info *ai){ +static int flashputbuf(struct airo_info *ai){ int nwords; /* Write stuff */ @@ -7601,7 +7602,7 @@ int flashputbuf(struct airo_info *ai){ /* * */ -int flashrestart(struct airo_info *ai,struct net_device *dev){ +static int flashrestart(struct airo_info *ai,struct net_device *dev){ int i,status; ssleep(1); /* Added 12/7/00 */ diff --git a/drivers/net/wireless/hostap/Kconfig b/drivers/net/wireless/hostap/Kconfig new file mode 100644 index 0000000..2871e87 --- /dev/null +++ b/drivers/net/wireless/hostap/Kconfig @@ -0,0 +1,104 @@ +config HOSTAP + tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)" + depends on NET_RADIO + ---help--- + Shared driver code for IEEE 802.11b wireless cards based on + Intersil Prism2/2.5/3 chipset. This driver supports so called + Host AP mode that allows the card to act as an IEEE 802.11 + access point. + + In addition, this includes generic IEEE 802.11 code, e.g., for + WEP/TKIP/CCMP encryption that can be shared with other drivers. + + See for more information about the + Host AP driver configuration and tools. This site includes + information and tools (hostapd and wpa_supplicant) for WPA/WPA2 + support. + + This option includes the base Host AP driver code that is shared by + different hardware models. You will also need to enable support for + PLX/PCI/CS version of the driver to actually use the driver. + + The driver can be compiled as a module and it will be called + "hostap.ko". + +config HOSTAP_WEP + tristate "IEEE 802.11 WEP encryption" + depends on HOSTAP + select CRYPTO + ---help--- + Software implementation of IEEE 802.11 WEP encryption. + + This can be compiled as a modules and it will be called + "hostap_crypt_wep.ko". + +config HOSTAP_TKIP + tristate "IEEE 802.11 TKIP encryption" + depends on HOSTAP + select CRYPTO + ---help--- + Software implementation of IEEE 802.11 TKIP encryption. + + This can be compiled as a modules and it will be called + "hostap_crypt_tkip.ko". + +config HOSTAP_CCMP + tristate "IEEE 802.11 CCMP encryption" + depends on HOSTAP + select CRYPTO + ---help--- + Software implementation of IEEE 802.11 CCMP encryption. + + This can be compiled as a modules and it will be called + "hostap_crypt_ccmp.ko". + +config HOSTAP_FIRMWARE + bool "Support downloading firmware images with Host AP driver" + depends on HOSTAP + ---help--- + Configure Host AP driver to include support for firmware image + download. Current version supports only downloading to volatile, i.e., + RAM memory. Flash upgrade is not yet supported. + + Firmware image downloading needs user space tool, prism2_srec. It is + available from http://hostap.epitest.fi/. + +config HOSTAP_PLX + tristate "Host AP driver for Prism2/2.5/3 in PLX9052 PCI adaptors" + depends on PCI && HOSTAP + ---help--- + Host AP driver's version for Prism2/2.5/3 PC Cards in PLX9052 based + PCI adaptors. + + "Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this + driver and its help text includes more information about the Host AP + driver. + + The driver can be compiled as a module and will be named + "hostap_plx.ko". + +config HOSTAP_PCI + tristate "Host AP driver for Prism2.5 PCI adaptors" + depends on PCI && HOSTAP + ---help--- + Host AP driver's version for Prism2.5 PCI adaptors. + + "Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this + driver and its help text includes more information about the Host AP + driver. + + The driver can be compiled as a module and will be named + "hostap_pci.ko". + +config HOSTAP_CS + tristate "Host AP driver for Prism2/2.5/3 PC Cards" + depends on PCMCIA!=n && HOSTAP + ---help--- + Host AP driver's version for Prism2/2.5/3 PC Cards. + + "Host AP support for Prism2/2.5/3 IEEE 802.11b" is required for this + driver and its help text includes more information about the Host AP + driver. + + The driver can be compiled as a module and will be named + "hostap_cs.ko". diff --git a/drivers/net/wireless/hostap/Makefile b/drivers/net/wireless/hostap/Makefile new file mode 100644 index 0000000..0875540 --- /dev/null +++ b/drivers/net/wireless/hostap/Makefile @@ -0,0 +1,8 @@ +obj-$(CONFIG_HOSTAP) += hostap.o +obj-$(CONFIG_HOSTAP_WEP) += hostap_crypt_wep.o +obj-$(CONFIG_HOSTAP_TKIP) += hostap_crypt_tkip.o +obj-$(CONFIG_HOSTAP_CCMP) += hostap_crypt_ccmp.o + +obj-$(CONFIG_HOSTAP_CS) += hostap_cs.o +obj-$(CONFIG_HOSTAP_PLX) += hostap_plx.o +obj-$(CONFIG_HOSTAP_PCI) += hostap_pci.o diff --git a/drivers/net/wireless/hostap/hostap.c b/drivers/net/wireless/hostap/hostap.c new file mode 100644 index 0000000..4fe8017 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap.c @@ -0,0 +1,1207 @@ +/* + * Host AP (software wireless LAN access point) driver for + * Intersil Prism2/2.5/3 - hostap.o module, common routines + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#ifndef EXPORT_SYMTAB +#define EXPORT_SYMTAB +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hostap_wlan.h" +#include "hostap_80211.h" +#include "hostap_ap.h" +#include "hostap.h" +#include "hostap_crypt.h" + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP common routines"); +MODULE_LICENSE("GPL"); + +/* Old hostap_crypt module is now part of hostap module. */ +#include "hostap_crypt.c" + +#define TX_TIMEOUT (2 * HZ) + +#define PRISM2_MAX_FRAME_SIZE 2304 +#define PRISM2_MIN_MTU 256 +/* FIX: */ +#define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */)) + + +/* hostap.c */ +static int prism2_wds_add(local_info_t *local, u8 *remote_addr, + int rtnl_locked); +static int prism2_wds_del(local_info_t *local, u8 *remote_addr, + int rtnl_locked, int do_not_remove); + +/* hostap_ap.c */ +static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[], + struct iw_quality qual[], int buf_size, + int aplist); +static int prism2_ap_translate_scan(struct net_device *dev, char *buffer); +static int prism2_hostapd(struct ap_data *ap, + struct prism2_hostapd_param *param); +static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent, + struct prism2_crypt_data ***crypt); +static void ap_control_kickall(struct ap_data *ap); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +static int ap_control_add_mac(struct mac_restrictions *mac_restrictions, + u8 *mac); +static int ap_control_del_mac(struct mac_restrictions *mac_restrictions, + u8 *mac); +static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions); +static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, + u8 *mac); +#endif /* !PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, + 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; +#define FREQ_COUNT (sizeof(freq_list) / sizeof(freq_list[0])) + + +/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ +/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ +static unsigned char rfc1042_header[] = +{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; +/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ +static unsigned char bridge_tunnel_header[] = +{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; +/* No encapsulation header if EtherType < 0x600 (=length) */ + + +/* FIX: these could be compiled separately and linked together to hostap.o */ +#include "hostap_ap.c" +#include "hostap_info.c" +#include "hostap_ioctl.c" +#include "hostap_proc.c" +#include "hostap_80211_rx.c" +#include "hostap_80211_tx.c" + + +struct net_device * hostap_add_interface(struct local_info *local, + int type, int rtnl_locked, + const char *prefix, + const char *name) +{ + struct net_device *dev, *mdev; + struct hostap_interface *iface; + int ret; + + dev = alloc_etherdev(sizeof(struct hostap_interface)); + if (dev == NULL) + return NULL; + + iface = netdev_priv(dev); + iface->dev = dev; + iface->local = local; + iface->type = type; + list_add(&iface->list, &local->hostap_interfaces); + + mdev = local->dev; + memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN); + dev->base_addr = mdev->base_addr; + dev->irq = mdev->irq; + dev->mem_start = mdev->mem_start; + dev->mem_end = mdev->mem_end; + + hostap_setup_dev(dev, local, 0); + dev->destructor = free_netdev; + + sprintf(dev->name, "%s%s", prefix, name); + if (!rtnl_locked) + rtnl_lock(); + + ret = 0; + if (strchr(dev->name, '%')) + ret = dev_alloc_name(dev, dev->name); + + if (ret >= 0) + ret = register_netdevice(dev); + + if (!rtnl_locked) + rtnl_unlock(); + + if (ret < 0) { + printk(KERN_WARNING "%s: failed to add new netdevice!\n", + dev->name); + free_netdev(dev); + return NULL; + } + + printk(KERN_DEBUG "%s: registered netdevice %s\n", + mdev->name, dev->name); + + return dev; +} + + +void hostap_remove_interface(struct net_device *dev, int rtnl_locked, + int remove_from_list) +{ + struct hostap_interface *iface; + + if (!dev) + return; + + iface = netdev_priv(dev); + + if (remove_from_list) { + list_del(&iface->list); + } + + if (dev == iface->local->ddev) + iface->local->ddev = NULL; + else if (dev == iface->local->apdev) + iface->local->apdev = NULL; + else if (dev == iface->local->stadev) + iface->local->stadev = NULL; + + if (rtnl_locked) + unregister_netdevice(dev); + else + unregister_netdev(dev); + + /* dev->destructor = free_netdev() will free the device data, including + * private data, when removing the device */ +} + + +static inline int prism2_wds_special_addr(u8 *addr) +{ + if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5]) + return 0; + + return 1; +} + + +static int prism2_wds_add(local_info_t *local, u8 *remote_addr, + int rtnl_locked) +{ + struct net_device *dev; + struct list_head *ptr; + struct hostap_interface *iface, *empty, *match; + + empty = match = NULL; + read_lock_bh(&local->iface_lock); + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type != HOSTAP_INTERFACE_WDS) + continue; + + if (prism2_wds_special_addr(iface->u.wds.remote_addr)) + empty = iface; + else if (memcmp(iface->u.wds.remote_addr, remote_addr, + ETH_ALEN) == 0) { + match = iface; + break; + } + } + if (!match && empty && !prism2_wds_special_addr(remote_addr)) { + /* take pre-allocated entry into use */ + memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN); + read_unlock_bh(&local->iface_lock); + printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n", + local->dev->name, empty->dev->name); + return 0; + } + read_unlock_bh(&local->iface_lock); + + if (!prism2_wds_special_addr(remote_addr)) { + if (match) + return -EEXIST; + hostap_add_sta(local->ap, remote_addr); + } + + if (local->wds_connections >= local->wds_max_connections) + return -ENOBUFS; + + /* verify that there is room for wds# postfix in the interface name */ + if (strlen(local->dev->name) > IFNAMSIZ - 5) { + printk(KERN_DEBUG "'%s' too long base device name\n", + local->dev->name); + return -EINVAL; + } + + dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked, + local->ddev->name, "wds%d"); + if (dev == NULL) + return -ENOMEM; + + iface = netdev_priv(dev); + memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN); + + local->wds_connections++; + + return 0; +} + + +static int prism2_wds_del(local_info_t *local, u8 *remote_addr, + int rtnl_locked, int do_not_remove) +{ + unsigned long flags; + struct list_head *ptr; + struct hostap_interface *iface, *selected = NULL; + + write_lock_irqsave(&local->iface_lock, flags); + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type != HOSTAP_INTERFACE_WDS) + continue; + + if (memcmp(iface->u.wds.remote_addr, remote_addr, + ETH_ALEN) == 0) { + selected = iface; + break; + } + } + if (selected && !do_not_remove) + list_del(&selected->list); + write_unlock_irqrestore(&local->iface_lock, flags); + + if (selected) { + if (do_not_remove) + memset(selected->u.wds.remote_addr, 0, ETH_ALEN); + else { + hostap_remove_interface(selected->dev, rtnl_locked, 0); + local->wds_connections--; + } + } + + return selected ? 0 : -ENODEV; +} + + +u16 hostap_tx_callback_register(local_info_t *local, + void (*func)(struct sk_buff *, int ok, void *), + void *data) +{ + unsigned long flags; + struct hostap_tx_callback_info *entry; + + entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry), + GFP_ATOMIC); + if (entry == NULL) + return 0; + + entry->func = func; + entry->data = data; + + spin_lock_irqsave(&local->lock, flags); + entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1; + entry->next = local->tx_callback; + local->tx_callback = entry; + spin_unlock_irqrestore(&local->lock, flags); + + return entry->idx; +} + + +int hostap_tx_callback_unregister(local_info_t *local, u16 idx) +{ + unsigned long flags; + struct hostap_tx_callback_info *cb, *prev = NULL; + + spin_lock_irqsave(&local->lock, flags); + cb = local->tx_callback; + while (cb != NULL && cb->idx != idx) { + prev = cb; + cb = cb->next; + } + if (cb) { + if (prev == NULL) + local->tx_callback = cb->next; + else + prev->next = cb->next; + kfree(cb); + } + spin_unlock_irqrestore(&local->lock, flags); + + return cb ? 0 : -1; +} + + +/* val is in host byte order */ +int hostap_set_word(struct net_device *dev, int rid, u16 val) +{ + struct hostap_interface *iface; + u16 tmp = cpu_to_le16(val); + iface = netdev_priv(dev); + return iface->local->func->set_rid(dev, rid, &tmp, 2); +} + + +int hostap_set_string(struct net_device *dev, int rid, const char *val) +{ + struct hostap_interface *iface; + char buf[MAX_SSID_LEN + 2]; + int len; + + iface = netdev_priv(dev); + len = strlen(val); + if (len > MAX_SSID_LEN) + return -1; + memset(buf, 0, sizeof(buf)); + buf[0] = len; /* little endian 16 bit word */ + memcpy(buf + 2, val, len); + + return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2); +} + + +u16 hostap_get_porttype(local_info_t *local) +{ + if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc) + return HFA384X_PORTTYPE_PSEUDO_IBSS; + if (local->iw_mode == IW_MODE_ADHOC) + return HFA384X_PORTTYPE_IBSS; + if (local->iw_mode == IW_MODE_INFRA) + return HFA384X_PORTTYPE_BSS; + if (local->iw_mode == IW_MODE_REPEAT) + return HFA384X_PORTTYPE_WDS; + if (local->iw_mode == IW_MODE_MONITOR) + return HFA384X_PORTTYPE_PSEUDO_IBSS; + return HFA384X_PORTTYPE_HOSTAP; +} + + +int hostap_set_encryption(local_info_t *local) +{ + u16 val, old_val; + int i, keylen, len, idx; + char keybuf[WEP_KEY_LEN + 1]; + enum { NONE, WEP, OTHER } encrypt_type; + + idx = local->tx_keyidx; + if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL) + encrypt_type = NONE; + else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0) + encrypt_type = WEP; + else + encrypt_type = OTHER; + + if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, + 1) < 0) { + printk(KERN_DEBUG "Could not read current WEP flags.\n"); + goto fail; + } + le16_to_cpus(&val); + old_val = val; + + if (encrypt_type != NONE || local->privacy_invoked) + val |= HFA384X_WEPFLAGS_PRIVACYINVOKED; + else + val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED; + + if (local->open_wep || encrypt_type == NONE || + ((local->ieee_802_1x || local->wpa) && local->host_decrypt)) + val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; + else + val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; + + if ((encrypt_type != NONE || local->privacy_invoked) && + (encrypt_type == OTHER || local->host_encrypt)) + val |= HFA384X_WEPFLAGS_HOSTENCRYPT; + else + val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT; + if ((encrypt_type != NONE || local->privacy_invoked) && + (encrypt_type == OTHER || local->host_decrypt)) + val |= HFA384X_WEPFLAGS_HOSTDECRYPT; + else + val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT; + + if (val != old_val && + hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) { + printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n", + val); + goto fail; + } + + if (encrypt_type != WEP) + return 0; + + /* 104-bit support seems to require that all the keys are set to the + * same keylen */ + keylen = 6; /* first 5 octets */ + len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), + NULL, local->crypt[idx]->priv); + if (idx >= 0 && idx < WEP_KEYS && len > 5) + keylen = WEP_KEY_LEN + 1; /* first 13 octets */ + + for (i = 0; i < WEP_KEYS; i++) { + memset(keybuf, 0, sizeof(keybuf)); + if (local->crypt[i]) { + (void) local->crypt[i]->ops->get_key( + keybuf, sizeof(keybuf), + NULL, local->crypt[i]->priv); + } + if (local->func->set_rid(local->dev, + HFA384X_RID_CNFDEFAULTKEY0 + i, + keybuf, keylen)) { + printk(KERN_DEBUG "Could not set key %d (len=%d)\n", + i, keylen); + goto fail; + } + } + if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) { + printk(KERN_DEBUG "Could not set default keyid %d\n", idx); + goto fail; + } + + return 0; + + fail: + printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name); + return -1; +} + + +int hostap_set_antsel(local_info_t *local) +{ + u16 val; + int ret = 0; + + if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH && + local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, + HFA386X_CR_TX_CONFIGURE, + NULL, &val) == 0) { + val &= ~(BIT(2) | BIT(1)); + switch (local->antsel_tx) { + case HOSTAP_ANTSEL_DIVERSITY: + val |= BIT(1); + break; + case HOSTAP_ANTSEL_LOW: + break; + case HOSTAP_ANTSEL_HIGH: + val |= BIT(2); + break; + } + + if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, + HFA386X_CR_TX_CONFIGURE, &val, NULL)) { + printk(KERN_INFO "%s: setting TX AntSel failed\n", + local->dev->name); + ret = -1; + } + } + + if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH && + local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, + HFA386X_CR_RX_CONFIGURE, + NULL, &val) == 0) { + val &= ~(BIT(1) | BIT(0)); + switch (local->antsel_rx) { + case HOSTAP_ANTSEL_DIVERSITY: + break; + case HOSTAP_ANTSEL_LOW: + val |= BIT(0); + break; + case HOSTAP_ANTSEL_HIGH: + val |= BIT(0) | BIT(1); + break; + } + + if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, + HFA386X_CR_RX_CONFIGURE, &val, NULL)) { + printk(KERN_INFO "%s: setting RX AntSel failed\n", + local->dev->name); + ret = -1; + } + } + + return ret; +} + + +int hostap_set_roaming(local_info_t *local) +{ + u16 val; + + switch (local->host_roaming) { + case 1: + val = HFA384X_ROAMING_HOST; + break; + case 2: + val = HFA384X_ROAMING_DISABLED; + break; + case 0: + default: + val = HFA384X_ROAMING_FIRMWARE; + break; + } + + return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val); +} + + +int hostap_set_auth_algs(local_info_t *local) +{ + int val = local->auth_algs; + /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication + * set to include both Open and Shared Key flags. It tries to use + * Shared Key authentication in that case even if WEP keys are not + * configured.. STA f/w v0.7.6 is able to handle such configuration, + * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */ + if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) && + val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY) + val = PRISM2_AUTH_OPEN; + + if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) { + printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x " + "failed\n", local->dev->name, local->auth_algs); + return -EINVAL; + } + + return 0; +} + + +void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx) +{ + u16 status, fc; + + status = __le16_to_cpu(rx->status); + + printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, " + "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; " + "jiffies=%ld\n", + name, status, (status >> 8) & 0x07, status >> 13, status & 1, + rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies); + + fc = __le16_to_cpu(rx->frame_control); + printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " + "data_len=%d%s%s\n", + fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc), + __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl), + __le16_to_cpu(rx->data_len), + fc & WLAN_FC_TODS ? " [ToDS]" : "", + fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); + + printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" + MACSTR "\n", + MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3), + MAC2STR(rx->addr4)); + + printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", + MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr), + __be16_to_cpu(rx->len)); +} + + +void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx) +{ + u16 fc; + + printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d " + "tx_control=0x%04x; jiffies=%ld\n", + name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate, + __le16_to_cpu(tx->tx_control), jiffies); + + fc = __le16_to_cpu(tx->frame_control); + printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " + "data_len=%d%s%s\n", + fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc), + __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl), + __le16_to_cpu(tx->data_len), + fc & WLAN_FC_TODS ? " [ToDS]" : "", + fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); + + printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" + MACSTR "\n", + MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3), + MAC2STR(tx->addr4)); + + printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", + MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr), + __be16_to_cpu(tx->len)); +} + + +int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr) +{ + memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */ + return ETH_ALEN; +} + + +int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr) +{ + if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) { + memcpy(haddr, skb->mac.raw + + sizeof(struct linux_wlan_ng_prism_hdr) + 10, + ETH_ALEN); /* addr2 */ + } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */ + memcpy(haddr, skb->mac.raw + + sizeof(struct linux_wlan_ng_cap_hdr) + 10, + ETH_ALEN); /* addr2 */ + } + return ETH_ALEN; +} + + +int hostap_80211_get_hdrlen(u16 fc) +{ + int hdrlen = 24; + + switch (WLAN_FC_GET_TYPE(fc)) { + case WLAN_FC_TYPE_DATA: + if ((fc & WLAN_FC_FROMDS) && (fc & WLAN_FC_TODS)) + hdrlen = 30; /* Addr4 */ + break; + case WLAN_FC_TYPE_CTRL: + switch (WLAN_FC_GET_STYPE(fc)) { + case WLAN_FC_STYPE_CTS: + case WLAN_FC_STYPE_ACK: + hdrlen = 10; + break; + default: + hdrlen = 16; + break; + } + break; + } + + return hdrlen; +} + + +struct net_device_stats *hostap_get_stats(struct net_device *dev) +{ + struct hostap_interface *iface; + iface = netdev_priv(dev); + return &iface->stats; +} + + +static int prism2_close(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + + PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name); + + iface = netdev_priv(dev); + local = iface->local; + + if (dev == local->ddev) { + prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING); + } +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (!local->hostapd && dev == local->dev && + (!local->func->card_present || local->func->card_present(local)) && + local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER) + hostap_deauth_all_stas(dev, local->ap, 1); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + if (local->func->dev_close && local->func->dev_close(local)) + return 0; + + if (dev == local->dev) { + local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL); + } + + if (netif_running(dev)) { + netif_stop_queue(dev); + netif_device_detach(dev); + } + + flush_scheduled_work(); + + module_put(local->hw_module); + + local->num_dev_open--; + + if (dev != local->dev && local->dev->flags & IFF_UP && + local->master_dev_auto_open && local->num_dev_open == 1) { + /* Close master radio interface automatically if it was also + * opened automatically and we are now closing the last + * remaining non-master device. */ + dev_close(local->dev); + } + + return 0; +} + + +static int prism2_open(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + + PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name); + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + printk(KERN_DEBUG "%s: could not set interface UP - no PRI " + "f/w\n", dev->name); + return 1; + } + + if ((local->func->card_present && !local->func->card_present(local)) || + local->hw_downloading) + return -ENODEV; + + if (local->func->dev_open && local->func->dev_open(local)) + return 1; + + if (!try_module_get(local->hw_module)) + return -ENODEV; + local->num_dev_open++; + + if (!local->dev_enabled && local->func->hw_enable(dev, 1)) { + printk(KERN_WARNING "%s: could not enable MAC port\n", + dev->name); + prism2_close(dev); + return 1; + } + if (!local->dev_enabled) + prism2_callback(local, PRISM2_CALLBACK_ENABLE); + local->dev_enabled = 1; + + if (dev != local->dev && !(local->dev->flags & IFF_UP)) { + /* Master radio interface is needed for all operation, so open + * it automatically when any virtual net_device is opened. */ + local->master_dev_auto_open = 1; + dev_open(local->dev); + } + + netif_device_attach(dev); + netif_start_queue(dev); + + return 0; +} + + +static int prism2_set_mac_address(struct net_device *dev, void *p) +{ + struct hostap_interface *iface; + local_info_t *local; + struct list_head *ptr; + struct sockaddr *addr = p; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data, + ETH_ALEN) < 0 || local->func->reset_port(dev)) + return -EINVAL; + + read_lock_bh(&local->iface_lock); + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN); + } + memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN); + read_unlock_bh(&local->iface_lock); + + return 0; +} + + +/* TODO: to be further implemented as soon as Prism2 fully supports + * GroupAddresses and correct documentation is available */ +void hostap_set_multicast_list_queue(void *data) +{ + struct net_device *dev = (struct net_device *) data; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE, + local->is_promisc)) { + printk(KERN_INFO "%s: %sabling promiscuous mode failed\n", + dev->name, local->is_promisc ? "en" : "dis"); + } +} + + +static void hostap_set_multicast_list(struct net_device *dev) +{ +#if 0 + /* FIX: promiscuous mode seems to be causing a lot of problems with + * some station firmware versions (FCSErr frames, invalid MACPort, etc. + * corrupted incoming frames). This code is now commented out while the + * problems are investigated. */ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) { + local->is_promisc = 1; + } else { + local->is_promisc = 0; + } + + schedule_work(&local->set_multicast_list_queue); +#endif +} + + +static int prism2_change_mtu(struct net_device *dev, int new_mtu) +{ + if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU) + return -EINVAL; + + dev->mtu = new_mtu; + return 0; +} + + +static void prism2_tx_timeout(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_regs regs; + + iface = netdev_priv(dev); + local = iface->local; + + printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name); + netif_stop_queue(local->dev); + + local->func->read_regs(dev, ®s); + printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x " + "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n", + dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1, + regs.swsupport0); + + local->func->schedule_reset(local); +} + + +void hostap_setup_dev(struct net_device *dev, local_info_t *local, + int main_dev) +{ + struct hostap_interface *iface; + + iface = netdev_priv(dev); + ether_setup(dev); + + /* kernel callbacks */ + dev->get_stats = hostap_get_stats; + if (iface) { + /* Currently, we point to the proper spy_data only on + * the main_dev. This could be fixed. Jean II */ + iface->wireless_data.spy_data = &iface->spy_data; + dev->wireless_data = &iface->wireless_data; + } + dev->wireless_handlers = + (struct iw_handler_def *) &hostap_iw_handler_def; + dev->do_ioctl = hostap_ioctl; + dev->open = prism2_open; + dev->stop = prism2_close; + dev->hard_start_xmit = hostap_data_start_xmit; + dev->set_mac_address = prism2_set_mac_address; + dev->set_multicast_list = hostap_set_multicast_list; + dev->change_mtu = prism2_change_mtu; + dev->tx_timeout = prism2_tx_timeout; + dev->watchdog_timeo = TX_TIMEOUT; + + dev->mtu = local->mtu; + if (!main_dev) { + /* use main radio device queue */ + dev->tx_queue_len = 0; + } + + SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops); + + netif_stop_queue(dev); +} + + +static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked) +{ + struct net_device *dev = local->dev; + + if (local->apdev) + return -EEXIST; + + printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name); + + local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP, + rtnl_locked, local->ddev->name, + "ap"); + if (local->apdev == NULL) + return -ENOMEM; + + local->apdev->hard_start_xmit = hostap_mgmt_start_xmit; + local->apdev->type = ARPHRD_IEEE80211; + local->apdev->hard_header_parse = hostap_80211_header_parse; + + return 0; +} + + +static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked) +{ + struct net_device *dev = local->dev; + + printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); + + hostap_remove_interface(local->apdev, rtnl_locked, 1); + local->apdev = NULL; + + return 0; +} + + +static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked) +{ + struct net_device *dev = local->dev; + + if (local->stadev) + return -EEXIST; + + printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name); + + local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA, + rtnl_locked, local->ddev->name, + "sta"); + if (local->stadev == NULL) + return -ENOMEM; + + return 0; +} + + +static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked) +{ + struct net_device *dev = local->dev; + + printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); + + hostap_remove_interface(local->stadev, rtnl_locked, 1); + local->stadev = NULL; + + return 0; +} + + +int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked) +{ + int ret; + + if (val < 0 || val > 1) + return -EINVAL; + + if (local->hostapd == val) + return 0; + + if (val) { + ret = hostap_enable_hostapd(local, rtnl_locked); + if (ret == 0) + local->hostapd = 1; + } else { + local->hostapd = 0; + ret = hostap_disable_hostapd(local, rtnl_locked); + if (ret != 0) + local->hostapd = 1; + } + + return ret; +} + + +int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked) +{ + int ret; + + if (val < 0 || val > 1) + return -EINVAL; + + if (local->hostapd_sta == val) + return 0; + + if (val) { + ret = hostap_enable_hostapd_sta(local, rtnl_locked); + if (ret == 0) + local->hostapd_sta = 1; + } else { + local->hostapd_sta = 0; + ret = hostap_disable_hostapd_sta(local, rtnl_locked); + if (ret != 0) + local->hostapd_sta = 1; + } + + + return ret; +} + + +int prism2_update_comms_qual(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret = 0; + struct hfa384x_comms_quality sq; + + iface = netdev_priv(dev); + local = iface->local; + if (!local->sta_fw_ver) + ret = -1; + else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) { + if (local->func->get_rid(local->dev, + HFA384X_RID_DBMCOMMSQUALITY, + &sq, sizeof(sq), 1) >= 0) { + local->comms_qual = (s16) le16_to_cpu(sq.comm_qual); + local->avg_signal = (s16) le16_to_cpu(sq.signal_level); + local->avg_noise = (s16) le16_to_cpu(sq.noise_level); + local->last_comms_qual_update = jiffies; + } else + ret = -1; + } else { + if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY, + &sq, sizeof(sq), 1) >= 0) { + local->comms_qual = le16_to_cpu(sq.comm_qual); + local->avg_signal = HFA384X_LEVEL_TO_dBm( + le16_to_cpu(sq.signal_level)); + local->avg_noise = HFA384X_LEVEL_TO_dBm( + le16_to_cpu(sq.noise_level)); + local->last_comms_qual_update = jiffies; + } else + ret = -1; + } + + return ret; +} + + +int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u8 stype, + u8 *body, size_t bodylen) +{ + struct sk_buff *skb; + struct hostap_ieee80211_mgmt *mgmt; + struct hostap_skb_tx_data *meta; + struct net_device *dev = local->dev; + + skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen); + if (skb == NULL) + return -ENOMEM; + + mgmt = (struct hostap_ieee80211_mgmt *) + skb_put(skb, IEEE80211_MGMT_HDR_LEN); + memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN); + mgmt->frame_control = + cpu_to_le16((WLAN_FC_TYPE_MGMT << 2) | (stype << 4)); + memcpy(mgmt->da, dst, ETH_ALEN); + memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); + memcpy(mgmt->bssid, dst, ETH_ALEN); + if (body) + memcpy(skb_put(skb, bodylen), body, bodylen); + + meta = (struct hostap_skb_tx_data *) skb->cb; + memset(meta, 0, sizeof(*meta)); + meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; + meta->iface = netdev_priv(dev); + + skb->dev = dev; + skb->mac.raw = skb->nh.raw = skb->data; + dev_queue_xmit(skb); + + return 0; +} + + +int prism2_sta_deauth(local_info_t *local, u16 reason) +{ + union iwreq_data wrqu; + int ret; + + if (local->iw_mode != IW_MODE_INFRA || + memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 || + memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0) + return 0; + + reason = cpu_to_le16(reason); + ret = prism2_sta_send_mgmt(local, local->bssid, WLAN_FC_STYPE_DEAUTH, + (u8 *) &reason, 2); + memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); + wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL); + return ret; +} + + +struct proc_dir_entry *hostap_proc; + +static int __init hostap_init(void) +{ + hostap_crypto_init(); + + if (proc_net != NULL) { + hostap_proc = proc_mkdir("hostap", proc_net); + if (!hostap_proc) + printk(KERN_WARNING "Failed to mkdir " + "/proc/net/hostap\n"); + } else + hostap_proc = NULL; + + return 0; +} + + +static void __exit hostap_exit(void) +{ + if (hostap_proc != NULL) { + hostap_proc = NULL; + remove_proc_entry("hostap", proc_net); + } + + hostap_crypto_deinit(); +} + + +EXPORT_SYMBOL(hostap_set_word); +EXPORT_SYMBOL(hostap_set_string); +EXPORT_SYMBOL(hostap_get_porttype); +EXPORT_SYMBOL(hostap_set_encryption); +EXPORT_SYMBOL(hostap_set_antsel); +EXPORT_SYMBOL(hostap_set_roaming); +EXPORT_SYMBOL(hostap_set_auth_algs); +EXPORT_SYMBOL(hostap_dump_rx_header); +EXPORT_SYMBOL(hostap_dump_tx_header); +EXPORT_SYMBOL(hostap_80211_header_parse); +EXPORT_SYMBOL(hostap_80211_prism_header_parse); +EXPORT_SYMBOL(hostap_80211_get_hdrlen); +EXPORT_SYMBOL(hostap_get_stats); +EXPORT_SYMBOL(hostap_setup_dev); +EXPORT_SYMBOL(hostap_proc); +EXPORT_SYMBOL(hostap_set_multicast_list_queue); +EXPORT_SYMBOL(hostap_set_hostapd); +EXPORT_SYMBOL(hostap_set_hostapd_sta); +EXPORT_SYMBOL(hostap_add_interface); +EXPORT_SYMBOL(hostap_remove_interface); +EXPORT_SYMBOL(prism2_update_comms_qual); + +module_init(hostap_init); +module_exit(hostap_exit); diff --git a/drivers/net/wireless/hostap/hostap.h b/drivers/net/wireless/hostap/hostap.h new file mode 100644 index 0000000..2ddcf5f --- /dev/null +++ b/drivers/net/wireless/hostap/hostap.h @@ -0,0 +1,57 @@ +#ifndef HOSTAP_H +#define HOSTAP_H + +/* hostap.c */ + +extern struct proc_dir_entry *hostap_proc; + +u16 hostap_tx_callback_register(local_info_t *local, + void (*func)(struct sk_buff *, int ok, void *), + void *data); +int hostap_tx_callback_unregister(local_info_t *local, u16 idx); +int hostap_set_word(struct net_device *dev, int rid, u16 val); +int hostap_set_string(struct net_device *dev, int rid, const char *val); +u16 hostap_get_porttype(local_info_t *local); +int hostap_set_encryption(local_info_t *local); +int hostap_set_antsel(local_info_t *local); +int hostap_set_roaming(local_info_t *local); +int hostap_set_auth_algs(local_info_t *local); +void hostap_dump_rx_header(const char *name, + const struct hfa384x_rx_frame *rx); +void hostap_dump_tx_header(const char *name, + const struct hfa384x_tx_frame *tx); +int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr); +int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr); +int hostap_80211_get_hdrlen(u16 fc); +struct net_device_stats *hostap_get_stats(struct net_device *dev); +void hostap_setup_dev(struct net_device *dev, local_info_t *local, + int main_dev); +void hostap_set_multicast_list_queue(void *data); +int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked); +int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked); +void hostap_cleanup(local_info_t *local); +void hostap_cleanup_handler(void *data); +struct net_device * hostap_add_interface(struct local_info *local, + int type, int rtnl_locked, + const char *prefix, const char *name); +void hostap_remove_interface(struct net_device *dev, int rtnl_locked, + int remove_from_list); +int prism2_update_comms_qual(struct net_device *dev); +int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u8 stype, + u8 *body, size_t bodylen); +int prism2_sta_deauth(local_info_t *local, u16 reason); + + +/* hostap_proc.c */ + +void hostap_init_proc(local_info_t *local); +void hostap_remove_proc(local_info_t *local); + + +/* hostap_info.c */ + +void hostap_info_init(local_info_t *local); +void hostap_info_process(local_info_t *local, struct sk_buff *skb); + + +#endif /* HOSTAP_H */ diff --git a/drivers/net/wireless/hostap/hostap_80211.h b/drivers/net/wireless/hostap/hostap_80211.h new file mode 100644 index 0000000..878151f --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_80211.h @@ -0,0 +1,107 @@ +#ifndef HOSTAP_80211_H +#define HOSTAP_80211_H + +struct hostap_ieee80211_hdr { + u16 frame_control; + u16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + u16 seq_ctrl; + u8 addr4[6]; +} __attribute__ ((packed)); + + +struct hostap_ieee80211_mgmt { + u16 frame_control; + u16 duration; + u8 da[6]; + u8 sa[6]; + u8 bssid[6]; + u16 seq_ctrl; + union { + struct { + u16 auth_alg; + u16 auth_transaction; + u16 status_code; + /* possibly followed by Challenge text */ + u8 variable[0]; + } __attribute__ ((packed)) auth; + struct { + u16 reason_code; + } __attribute__ ((packed)) deauth; + struct { + u16 capab_info; + u16 listen_interval; + /* followed by SSID and Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) assoc_req; + struct { + u16 capab_info; + u16 status_code; + u16 aid; + /* followed by Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) assoc_resp, reassoc_resp; + struct { + u16 capab_info; + u16 listen_interval; + u8 current_ap[6]; + /* followed by SSID and Supported rates */ + u8 variable[0]; + } __attribute__ ((packed)) reassoc_req; + struct { + u16 reason_code; + } __attribute__ ((packed)) disassoc; + struct { + } __attribute__ ((packed)) probe_req; + struct { + u8 timestamp[8]; + u16 beacon_int; + u16 capab_info; + /* followed by some of SSID, Supported rates, + * FH Params, DS Params, CF Params, IBSS Params, TIM */ + u8 variable[0]; + } __attribute__ ((packed)) beacon, probe_resp; + } u; +} __attribute__ ((packed)); + + +#define IEEE80211_MGMT_HDR_LEN 24 +#define IEEE80211_DATA_HDR3_LEN 24 +#define IEEE80211_DATA_HDR4_LEN 30 + + +struct hostap_80211_rx_status { + u32 mac_time; + u8 signal; + u8 noise; + u16 rate; /* in 100 kbps */ +}; + + +void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats); + + +/* prism2_rx_80211 'type' argument */ +enum { + PRISM2_RX_MONITOR, PRISM2_RX_MGMT, PRISM2_RX_NON_ASSOC, + PRISM2_RX_NULLFUNC_ACK +}; + +int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, int type); +void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats); +void hostap_dump_rx_80211(const char *name, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats); + +void hostap_dump_tx_80211(const char *name, struct sk_buff *skb); +int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev); +int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev); +struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb, + struct prism2_crypt_data *crypt); +int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev); + +#endif /* HOSTAP_80211_H */ diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c new file mode 100644 index 0000000..917296c --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_80211_rx.c @@ -0,0 +1,1084 @@ +#include + +#include "hostap_80211.h" +#include "hostap.h" + +void hostap_dump_rx_80211(const char *name, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct hostap_ieee80211_hdr *hdr; + u16 fc; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + printk(KERN_DEBUG "%s: RX signal=%d noise=%d rate=%d len=%d " + "jiffies=%ld\n", + name, rx_stats->signal, rx_stats->noise, rx_stats->rate, + skb->len, jiffies); + + if (skb->len < 2) + return; + + fc = le16_to_cpu(hdr->frame_control); + printk(KERN_DEBUG " FC=0x%04x (type=%d:%d)%s%s", + fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc), + fc & WLAN_FC_TODS ? " [ToDS]" : "", + fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); + + if (skb->len < IEEE80211_DATA_HDR3_LEN) { + printk("\n"); + return; + } + + printk(" dur=0x%04x seq=0x%04x\n", le16_to_cpu(hdr->duration_id), + le16_to_cpu(hdr->seq_ctrl)); + + printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR, + MAC2STR(hdr->addr1), MAC2STR(hdr->addr2), MAC2STR(hdr->addr3)); + if (skb->len >= 30) + printk(" A4=" MACSTR, MAC2STR(hdr->addr4)); + printk("\n"); +} + + +/* Send RX frame to netif with 802.11 (and possible prism) header. + * Called from hardware or software IRQ context. */ +int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, int type) +{ + struct hostap_interface *iface; + local_info_t *local; + int hdrlen, phdrlen, head_need, tail_need; + u16 fc; + int prism_header, ret; + struct hostap_ieee80211_hdr *hdr; + + iface = netdev_priv(dev); + local = iface->local; + dev->last_rx = jiffies; + + if (dev->type == ARPHRD_IEEE80211_PRISM) { + if (local->monitor_type == PRISM2_MONITOR_PRISM) { + prism_header = 1; + phdrlen = sizeof(struct linux_wlan_ng_prism_hdr); + } else { /* local->monitor_type == PRISM2_MONITOR_CAPHDR */ + prism_header = 2; + phdrlen = sizeof(struct linux_wlan_ng_cap_hdr); + } + } else { + prism_header = 0; + phdrlen = 0; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + + if (type == PRISM2_RX_MGMT && (fc & WLAN_FC_PVER)) { + printk(KERN_DEBUG "%s: dropped management frame with header " + "version %d\n", dev->name, fc & WLAN_FC_PVER); + dev_kfree_skb_any(skb); + return 0; + } + + hdrlen = hostap_80211_get_hdrlen(fc); + + /* check if there is enough room for extra data; if not, expand skb + * buffer to be large enough for the changes */ + head_need = phdrlen; + tail_need = 0; +#ifdef PRISM2_ADD_BOGUS_CRC + tail_need += 4; +#endif /* PRISM2_ADD_BOGUS_CRC */ + + head_need -= skb_headroom(skb); + tail_need -= skb_tailroom(skb); + + if (head_need > 0 || tail_need > 0) { + if (pskb_expand_head(skb, head_need > 0 ? head_need : 0, + tail_need > 0 ? tail_need : 0, + GFP_ATOMIC)) { + printk(KERN_DEBUG "%s: prism2_rx_80211 failed to " + "reallocate skb buffer\n", dev->name); + dev_kfree_skb_any(skb); + return 0; + } + } + + /* We now have an skb with enough head and tail room, so just insert + * the extra data */ + +#ifdef PRISM2_ADD_BOGUS_CRC + memset(skb_put(skb, 4), 0xff, 4); /* Prism2 strips CRC */ +#endif /* PRISM2_ADD_BOGUS_CRC */ + + if (prism_header == 1) { + struct linux_wlan_ng_prism_hdr *hdr; + hdr = (struct linux_wlan_ng_prism_hdr *) + skb_push(skb, phdrlen); + memset(hdr, 0, phdrlen); + hdr->msgcode = LWNG_CAP_DID_BASE; + hdr->msglen = sizeof(*hdr); + memcpy(hdr->devname, dev->name, sizeof(hdr->devname)); +#define LWNG_SETVAL(f,i,s,l,d) \ +hdr->f.did = LWNG_CAP_DID_BASE | (i << 12); \ +hdr->f.status = s; hdr->f.len = l; hdr->f.data = d + LWNG_SETVAL(hosttime, 1, 0, 4, jiffies); + LWNG_SETVAL(mactime, 2, 0, 0, rx_stats->mac_time); + LWNG_SETVAL(channel, 3, 1 /* no value */, 4, 0); + LWNG_SETVAL(rssi, 4, 1 /* no value */, 4, 0); + LWNG_SETVAL(sq, 5, 1 /* no value */, 4, 0); + LWNG_SETVAL(signal, 6, 0, 4, rx_stats->signal); + LWNG_SETVAL(noise, 7, 0, 4, rx_stats->noise); + LWNG_SETVAL(rate, 8, 0, 4, rx_stats->rate / 5); + LWNG_SETVAL(istx, 9, 0, 4, 0); + LWNG_SETVAL(frmlen, 10, 0, 4, skb->len - phdrlen); +#undef LWNG_SETVAL + } else if (prism_header == 2) { + struct linux_wlan_ng_cap_hdr *hdr; + hdr = (struct linux_wlan_ng_cap_hdr *) + skb_push(skb, phdrlen); + memset(hdr, 0, phdrlen); + hdr->version = htonl(LWNG_CAPHDR_VERSION); + hdr->length = htonl(phdrlen); + hdr->mactime = __cpu_to_be64(rx_stats->mac_time); + hdr->hosttime = __cpu_to_be64(jiffies); + hdr->phytype = htonl(4); /* dss_dot11_b */ + hdr->channel = htonl(local->channel); + hdr->datarate = htonl(rx_stats->rate); + hdr->antenna = htonl(0); /* unknown */ + hdr->priority = htonl(0); /* unknown */ + hdr->ssi_type = htonl(3); /* raw */ + hdr->ssi_signal = htonl(rx_stats->signal); + hdr->ssi_noise = htonl(rx_stats->noise); + hdr->preamble = htonl(0); /* unknown */ + hdr->encoding = htonl(1); /* cck */ + } + + ret = skb->len - phdrlen; + skb->dev = dev; + skb->mac.raw = skb->data; + skb_pull(skb, hdrlen); + if (prism_header) + skb_pull(skb, phdrlen); + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = __constant_htons(ETH_P_802_2); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_rx(skb); + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +static void monitor_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct net_device_stats *stats; + int len; + + len = prism2_rx_80211(dev, skb, rx_stats, PRISM2_RX_MONITOR); + stats = hostap_get_stats(dev); + stats->rx_packets++; + stats->rx_bytes += len; +} + + +/* Called only as a tasklet (software IRQ) */ +static struct prism2_frag_entry * +prism2_frag_cache_find(local_info_t *local, unsigned int seq, + unsigned int frag, u8 *src, u8 *dst) +{ + struct prism2_frag_entry *entry; + int i; + + for (i = 0; i < PRISM2_FRAG_CACHE_LEN; i++) { + entry = &local->frag_cache[i]; + if (entry->skb != NULL && + time_after(jiffies, entry->first_frag_time + 2 * HZ)) { + printk(KERN_DEBUG "%s: expiring fragment cache entry " + "seq=%u last_frag=%u\n", + local->dev->name, entry->seq, entry->last_frag); + dev_kfree_skb(entry->skb); + entry->skb = NULL; + } + + if (entry->skb != NULL && entry->seq == seq && + (entry->last_frag + 1 == frag || frag == -1) && + memcmp(entry->src_addr, src, ETH_ALEN) == 0 && + memcmp(entry->dst_addr, dst, ETH_ALEN) == 0) + return entry; + } + + return NULL; +} + + +/* Called only as a tasklet (software IRQ) */ +static struct sk_buff * +prism2_frag_cache_get(local_info_t *local, struct hostap_ieee80211_hdr *hdr) +{ + struct sk_buff *skb = NULL; + u16 sc; + unsigned int frag, seq; + struct prism2_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctrl); + frag = WLAN_GET_SEQ_FRAG(sc); + seq = WLAN_GET_SEQ_SEQ(sc); + + if (frag == 0) { + /* Reserve enough space to fit maximum frame length */ + skb = dev_alloc_skb(local->dev->mtu + + sizeof(struct hostap_ieee80211_hdr) + + 8 /* LLC */ + + 2 /* alignment */ + + 8 /* WEP */ + ETH_ALEN /* WDS */); + if (skb == NULL) + return NULL; + + entry = &local->frag_cache[local->frag_next_idx]; + local->frag_next_idx++; + if (local->frag_next_idx >= PRISM2_FRAG_CACHE_LEN) + local->frag_next_idx = 0; + + if (entry->skb != NULL) + dev_kfree_skb(entry->skb); + + entry->first_frag_time = jiffies; + entry->seq = seq; + entry->last_frag = frag; + entry->skb = skb; + memcpy(entry->src_addr, hdr->addr2, ETH_ALEN); + memcpy(entry->dst_addr, hdr->addr1, ETH_ALEN); + } else { + /* received a fragment of a frame for which the head fragment + * should have already been received */ + entry = prism2_frag_cache_find(local, seq, frag, hdr->addr2, + hdr->addr1); + if (entry != NULL) { + entry->last_frag = frag; + skb = entry->skb; + } + } + + return skb; +} + + +/* Called only as a tasklet (software IRQ) */ +static int prism2_frag_cache_invalidate(local_info_t *local, + struct hostap_ieee80211_hdr *hdr) +{ + u16 sc; + unsigned int seq; + struct prism2_frag_entry *entry; + + sc = le16_to_cpu(hdr->seq_ctrl); + seq = WLAN_GET_SEQ_SEQ(sc); + + entry = prism2_frag_cache_find(local, seq, -1, hdr->addr2, hdr->addr1); + + if (entry == NULL) { + printk(KERN_DEBUG "%s: could not invalidate fragment cache " + "entry (seq=%u)\n", + local->dev->name, seq); + return -1; + } + + entry->skb = NULL; + return 0; +} + + +static struct hostap_bss_info *__hostap_get_bss(local_info_t *local, u8 *bssid, + u8 *ssid, size_t ssid_len) +{ + struct list_head *ptr; + struct hostap_bss_info *bss; + + list_for_each(ptr, &local->bss_list) { + bss = list_entry(ptr, struct hostap_bss_info, list); + if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0 && + (ssid == NULL || + (ssid_len == bss->ssid_len && + memcmp(ssid, bss->ssid, ssid_len) == 0))) { + list_move(&bss->list, &local->bss_list); + return bss; + } + } + + return NULL; +} + + +static struct hostap_bss_info *__hostap_add_bss(local_info_t *local, u8 *bssid, + u8 *ssid, size_t ssid_len) +{ + struct hostap_bss_info *bss; + + if (local->num_bss_info >= HOSTAP_MAX_BSS_COUNT) { + bss = list_entry(local->bss_list.prev, + struct hostap_bss_info, list); + list_del(&bss->list); + local->num_bss_info--; + } else { + bss = (struct hostap_bss_info *) + kmalloc(sizeof(*bss), GFP_ATOMIC); + if (bss == NULL) + return NULL; + } + + memset(bss, 0, sizeof(*bss)); + memcpy(bss->bssid, bssid, ETH_ALEN); + memcpy(bss->ssid, ssid, ssid_len); + bss->ssid_len = ssid_len; + local->num_bss_info++; + list_add(&bss->list, &local->bss_list); + return bss; +} + + +static void __hostap_expire_bss(local_info_t *local) +{ + struct hostap_bss_info *bss; + + while (local->num_bss_info > 0) { + bss = list_entry(local->bss_list.prev, + struct hostap_bss_info, list); + if (!time_after(jiffies, bss->last_update + 60 * HZ)) + break; + + list_del(&bss->list); + local->num_bss_info--; + kfree(bss); + } +} + + +/* Both IEEE 802.11 Beacon and Probe Response frames have similar structure, so + * the same routine can be used to parse both of them. */ +static void hostap_rx_sta_beacon(local_info_t *local, struct sk_buff *skb, + int stype) +{ + struct hostap_ieee80211_mgmt *mgmt; + int left, chan = 0; + u8 *pos; + u8 *ssid = NULL, *wpa = NULL, *rsn = NULL; + size_t ssid_len = 0, wpa_len = 0, rsn_len = 0; + struct hostap_bss_info *bss; + + if (skb->len < IEEE80211_MGMT_HDR_LEN + sizeof(mgmt->u.beacon)) + return; + + mgmt = (struct hostap_ieee80211_mgmt *) skb->data; + pos = mgmt->u.beacon.variable; + left = skb->len - (pos - skb->data); + + while (left >= 2) { + if (2 + pos[1] > left) + return; /* parse failed */ + switch (*pos) { + case WLAN_EID_SSID: + ssid = pos + 2; + ssid_len = pos[1]; + break; + case WLAN_EID_GENERIC: + if (pos[1] >= 4 && + pos[2] == 0x00 && pos[3] == 0x50 && + pos[4] == 0xf2 && pos[5] == 1) { + wpa = pos; + wpa_len = pos[1] + 2; + } + break; + case WLAN_EID_RSN: + rsn = pos; + rsn_len = pos[1] + 2; + break; + case WLAN_EID_DS_PARAMS: + if (pos[1] >= 1) + chan = pos[2]; + break; + } + left -= 2 + pos[1]; + pos += 2 + pos[1]; + } + + if (wpa_len > MAX_WPA_IE_LEN) + wpa_len = MAX_WPA_IE_LEN; + if (rsn_len > MAX_WPA_IE_LEN) + rsn_len = MAX_WPA_IE_LEN; + if (ssid_len > sizeof(bss->ssid)) + ssid_len = sizeof(bss->ssid); + + spin_lock(&local->lock); + bss = __hostap_get_bss(local, mgmt->bssid, ssid, ssid_len); + if (bss == NULL) + bss = __hostap_add_bss(local, mgmt->bssid, ssid, ssid_len); + if (bss) { + bss->last_update = jiffies; + bss->count++; + bss->capab_info = le16_to_cpu(mgmt->u.beacon.capab_info); + if (wpa) { + memcpy(bss->wpa_ie, wpa, wpa_len); + bss->wpa_ie_len = wpa_len; + } else + bss->wpa_ie_len = 0; + if (rsn) { + memcpy(bss->rsn_ie, rsn, rsn_len); + bss->rsn_ie_len = rsn_len; + } else + bss->rsn_ie_len = 0; + bss->chan = chan; + } + __hostap_expire_bss(local); + spin_unlock(&local->lock); +} + + +static inline int +hostap_rx_frame_mgmt(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, u16 type, + u16 stype) +{ + if (local->iw_mode == IW_MODE_MASTER) { + hostap_update_sta_ps(local, (struct hostap_ieee80211_hdr *) + skb->data); + } + + if (local->hostapd && type == WLAN_FC_TYPE_MGMT) { + if (stype == WLAN_FC_STYPE_BEACON && + local->iw_mode == IW_MODE_MASTER) { + struct sk_buff *skb2; + /* Process beacon frames also in kernel driver to + * update STA(AP) table statistics */ + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2) + hostap_rx(skb2->dev, skb2, rx_stats); + } + + /* send management frames to the user space daemon for + * processing */ + local->apdevstats.rx_packets++; + local->apdevstats.rx_bytes += skb->len; + if (local->apdev == NULL) + return -1; + prism2_rx_80211(local->apdev, skb, rx_stats, PRISM2_RX_MGMT); + return 0; + } + + if (local->iw_mode == IW_MODE_MASTER) { + if (type != WLAN_FC_TYPE_MGMT && type != WLAN_FC_TYPE_CTRL) { + printk(KERN_DEBUG "%s: unknown management frame " + "(type=0x%02x, stype=0x%02x) dropped\n", + skb->dev->name, type, stype); + return -1; + } + + hostap_rx(skb->dev, skb, rx_stats); + return 0; + } else if (type == WLAN_FC_TYPE_MGMT && + (stype == WLAN_FC_STYPE_BEACON || + stype == WLAN_FC_STYPE_PROBE_RESP)) { + hostap_rx_sta_beacon(local, skb, stype); + return -1; + } else if (type == WLAN_FC_TYPE_MGMT && + (stype == WLAN_FC_STYPE_ASSOC_RESP || + stype == WLAN_FC_STYPE_REASSOC_RESP)) { + /* Ignore (Re)AssocResp silently since these are not currently + * needed but are still received when WPA/RSN mode is enabled. + */ + return -1; + } else { + printk(KERN_DEBUG "%s: hostap_rx_frame_mgmt: dropped unhandled" + " management frame in non-Host AP mode (type=%d:%d)\n", + skb->dev->name, type, stype); + return -1; + } +} + + +/* Called only as a tasklet (software IRQ) */ +static inline struct net_device *prism2_rx_get_wds(local_info_t *local, + u8 *addr) +{ + struct hostap_interface *iface = NULL; + struct list_head *ptr; + + read_lock_bh(&local->iface_lock); + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type == HOSTAP_INTERFACE_WDS && + memcmp(iface->u.wds.remote_addr, addr, ETH_ALEN) == 0) + break; + iface = NULL; + } + read_unlock_bh(&local->iface_lock); + + return iface ? iface->dev : NULL; +} + + +static inline int +hostap_rx_frame_wds(local_info_t *local, struct hostap_ieee80211_hdr *hdr, + u16 fc, struct net_device **wds) +{ + /* FIX: is this really supposed to accept WDS frames only in Master + * mode? What about Repeater or Managed with WDS frames? */ + if ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) != + (WLAN_FC_TODS | WLAN_FC_FROMDS) && + (local->iw_mode != IW_MODE_MASTER || !(fc & WLAN_FC_TODS))) + return 0; /* not a WDS frame */ + + /* Possible WDS frame: either IEEE 802.11 compliant (if FromDS) + * or own non-standard frame with 4th address after payload */ + if (memcmp(hdr->addr1, local->dev->dev_addr, ETH_ALEN) != 0 && + (hdr->addr1[0] != 0xff || hdr->addr1[1] != 0xff || + hdr->addr1[2] != 0xff || hdr->addr1[3] != 0xff || + hdr->addr1[4] != 0xff || hdr->addr1[5] != 0xff)) { + /* RA (or BSSID) is not ours - drop */ + PDEBUG(DEBUG_EXTRA, "%s: received WDS frame with " + "not own or broadcast %s=" MACSTR "\n", + local->dev->name, fc & WLAN_FC_FROMDS ? "RA" : "BSSID", + MAC2STR(hdr->addr1)); + return -1; + } + + /* check if the frame came from a registered WDS connection */ + *wds = prism2_rx_get_wds(local, hdr->addr2); + if (*wds == NULL && fc & WLAN_FC_FROMDS && + (local->iw_mode != IW_MODE_INFRA || + !(local->wds_type & HOSTAP_WDS_AP_CLIENT) || + memcmp(hdr->addr2, local->bssid, ETH_ALEN) != 0)) { + /* require that WDS link has been registered with TA or the + * frame is from current AP when using 'AP client mode' */ + PDEBUG(DEBUG_EXTRA, "%s: received WDS[4 addr] frame " + "from unknown TA=" MACSTR "\n", + local->dev->name, MAC2STR(hdr->addr2)); + if (local->ap && local->ap->autom_ap_wds) + hostap_wds_link_oper(local, hdr->addr2, WDS_ADD); + return -1; + } + + if (*wds && !(fc & WLAN_FC_FROMDS) && local->ap && + hostap_is_sta_assoc(local->ap, hdr->addr2)) { + /* STA is actually associated with us even though it has a + * registered WDS link. Assume it is in 'AP client' mode. + * Since this is a 3-addr frame, assume it is not (bogus) WDS + * frame and process it like any normal ToDS frame from + * associated STA. */ + *wds = NULL; + } + + return 0; +} + + +static int hostap_is_eapol_frame(local_info_t *local, struct sk_buff *skb) +{ + struct net_device *dev = local->dev; + u16 fc, ethertype; + struct hostap_ieee80211_hdr *hdr; + u8 *pos; + + if (skb->len < 24) + return 0; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + + /* check that the frame is unicast frame to us */ + if ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) == WLAN_FC_TODS && + memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 && + memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) { + /* ToDS frame with own addr BSSID and DA */ + } else if ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) == WLAN_FC_FROMDS && + memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) { + /* FromDS frame with own addr as DA */ + } else + return 0; + + if (skb->len < 24 + 8) + return 0; + + /* check for port access entity Ethernet type */ + pos = skb->data + 24; + ethertype = (pos[6] << 8) | pos[7]; + if (ethertype == ETH_P_PAE) + return 1; + + return 0; +} + + +/* Called only as a tasklet (software IRQ) */ +static inline int +hostap_rx_frame_decrypt(local_info_t *local, struct sk_buff *skb, + struct prism2_crypt_data *crypt) +{ + struct hostap_ieee80211_hdr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_mpdu == NULL) + return 0; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(hdr->frame_control)); + + if (local->tkip_countermeasures && + strcmp(crypt->ops->name, "TKIP") == 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " + "received packet from " MACSTR "\n", + local->dev->name, MAC2STR(hdr->addr2)); + } + return -1; + } + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_mpdu(skb, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_DEBUG "%s: decryption failed (SA=" MACSTR + ") res=%d\n", + local->dev->name, MAC2STR(hdr->addr2), res); + local->comm_tallies.rx_discards_wep_undecryptable++; + return -1; + } + + return res; +} + + +/* Called only as a tasklet (software IRQ) */ +static inline int +hostap_rx_frame_decrypt_msdu(local_info_t *local, struct sk_buff *skb, + int keyidx, struct prism2_crypt_data *crypt) +{ + struct hostap_ieee80211_hdr *hdr; + int res, hdrlen; + + if (crypt == NULL || crypt->ops->decrypt_msdu == NULL) + return 0; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(hdr->frame_control)); + + atomic_inc(&crypt->refcnt); + res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed" + " (SA=" MACSTR " keyidx=%d)\n", + local->dev->name, MAC2STR(hdr->addr2), keyidx); + return -1; + } + + return 0; +} + + +/* All received frames are sent to this function. @skb contains the frame in + * IEEE 802.11 format, i.e., in the format it was sent over air. + * This function is called only as a tasklet (software IRQ). */ +void hostap_80211_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hostap_ieee80211_hdr *hdr; + size_t hdrlen; + u16 fc, type, stype, sc; + struct net_device *wds = NULL; + struct net_device_stats *stats; + unsigned int frag; + u8 *payload; + struct sk_buff *skb2 = NULL; + u16 ethertype; + int frame_authorized = 0; + int from_assoc_ap = 0; + u8 dst[ETH_ALEN]; + u8 src[ETH_ALEN]; + struct prism2_crypt_data *crypt = NULL; + void *sta = NULL; + int keyidx = 0; + + iface = netdev_priv(dev); + local = iface->local; + iface->stats.rx_packets++; + iface->stats.rx_bytes += skb->len; + + /* dev is the master radio device; change this to be the default + * virtual interface (this may be changed to WDS device below) */ + dev = local->ddev; + iface = netdev_priv(dev); + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + stats = hostap_get_stats(dev); + + if (skb->len < 10) + goto rx_dropped; + + fc = le16_to_cpu(hdr->frame_control); + type = WLAN_FC_GET_TYPE(fc); + stype = WLAN_FC_GET_STYPE(fc); + sc = le16_to_cpu(hdr->seq_ctrl); + frag = WLAN_GET_SEQ_FRAG(sc); + hdrlen = hostap_80211_get_hdrlen(fc); + + /* Put this code here so that we avoid duplicating it in all + * Rx paths. - Jean II */ +#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ + /* If spy monitoring on */ + if (iface->spy_data.spy_number > 0) { + struct iw_quality wstats; + wstats.level = rx_stats->signal; + wstats.noise = rx_stats->noise; + wstats.updated = 6; /* No qual value */ + /* Update spy records */ + wireless_spy_update(dev, hdr->addr2, &wstats); + } +#endif /* IW_WIRELESS_SPY */ + hostap_update_rx_stats(local->ap, hdr, rx_stats); + + if (local->iw_mode == IW_MODE_MONITOR) { + monitor_rx(dev, skb, rx_stats); + return; + } + + if (local->host_decrypt) { + int idx = 0; + if (skb->len >= hdrlen + 3) + idx = skb->data[hdrlen + 3] >> 6; + crypt = local->crypt[idx]; + sta = NULL; + + /* Use station specific key to override default keys if the + * receiver address is a unicast address ("individual RA"). If + * bcrx_sta_key parameter is set, station specific key is used + * even with broad/multicast targets (this is against IEEE + * 802.11, but makes it easier to use different keys with + * stations that do not support WEP key mapping). */ + + if (!(hdr->addr1[0] & 0x01) || local->bcrx_sta_key) + (void) hostap_handle_sta_crypto(local, hdr, &crypt, + &sta); + + /* allow NULL decrypt to indicate an station specific override + * for default encryption */ + if (crypt && (crypt->ops == NULL || + crypt->ops->decrypt_mpdu == NULL)) + crypt = NULL; + + if (!crypt && (fc & WLAN_FC_ISWEP)) { +#if 0 + /* This seems to be triggered by some (multicast?) + * frames from other than current BSS, so just drop the + * frames silently instead of filling system log with + * these reports. */ + printk(KERN_DEBUG "%s: WEP decryption failed (not set)" + " (SA=" MACSTR ")\n", + local->dev->name, MAC2STR(hdr->addr2)); +#endif + local->comm_tallies.rx_discards_wep_undecryptable++; + goto rx_dropped; + } + } + + if (type != WLAN_FC_TYPE_DATA) { + if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_AUTH && + fc & WLAN_FC_ISWEP && local->host_decrypt && + (keyidx = hostap_rx_frame_decrypt(local, skb, crypt)) < 0) + { + printk(KERN_DEBUG "%s: failed to decrypt mgmt::auth " + "from " MACSTR "\n", dev->name, + MAC2STR(hdr->addr2)); + /* TODO: could inform hostapd about this so that it + * could send auth failure report */ + goto rx_dropped; + } + + if (hostap_rx_frame_mgmt(local, skb, rx_stats, type, stype)) + goto rx_dropped; + else + goto rx_exit; + } + + /* Data frame - extract src/dst addresses */ + if (skb->len < IEEE80211_DATA_HDR3_LEN) + goto rx_dropped; + + switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) { + case WLAN_FC_FROMDS: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr3, ETH_ALEN); + break; + case WLAN_FC_TODS: + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + case WLAN_FC_FROMDS | WLAN_FC_TODS: + if (skb->len < IEEE80211_DATA_HDR4_LEN) + goto rx_dropped; + memcpy(dst, hdr->addr3, ETH_ALEN); + memcpy(src, hdr->addr4, ETH_ALEN); + break; + case 0: + memcpy(dst, hdr->addr1, ETH_ALEN); + memcpy(src, hdr->addr2, ETH_ALEN); + break; + } + + if (hostap_rx_frame_wds(local, hdr, fc, &wds)) + goto rx_dropped; + if (wds) { + skb->dev = dev = wds; + stats = hostap_get_stats(dev); + } + + if (local->iw_mode == IW_MODE_MASTER && !wds && + (fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) == WLAN_FC_FROMDS && + local->stadev && + memcmp(hdr->addr2, local->assoc_ap_addr, ETH_ALEN) == 0) { + /* Frame from BSSID of the AP for which we are a client */ + skb->dev = dev = local->stadev; + stats = hostap_get_stats(dev); + from_assoc_ap = 1; + } + + dev->last_rx = jiffies; + + if ((local->iw_mode == IW_MODE_MASTER || + local->iw_mode == IW_MODE_REPEAT) && + !from_assoc_ap) { + switch (hostap_handle_sta_rx(local, dev, skb, rx_stats, + wds != NULL)) { + case AP_RX_CONTINUE_NOT_AUTHORIZED: + frame_authorized = 0; + break; + case AP_RX_CONTINUE: + frame_authorized = 1; + break; + case AP_RX_DROP: + goto rx_dropped; + case AP_RX_EXIT: + goto rx_exit; + } + } + + /* Nullfunc frames may have PS-bit set, so they must be passed to + * hostap_handle_sta_rx() before being dropped here. */ + if (stype != WLAN_FC_STYPE_DATA && + stype != WLAN_FC_STYPE_DATA_CFACK && + stype != WLAN_FC_STYPE_DATA_CFPOLL && + stype != WLAN_FC_STYPE_DATA_CFACKPOLL) { + if (stype != WLAN_FC_STYPE_NULLFUNC) + printk(KERN_DEBUG "%s: RX: dropped data frame " + "with no data (type=0x%02x, subtype=0x%02x)\n", + dev->name, type, stype); + goto rx_dropped; + } + + /* skb: hdr + (possibly fragmented, possibly encrypted) payload */ + + if (local->host_decrypt && (fc & WLAN_FC_ISWEP) && + (keyidx = hostap_rx_frame_decrypt(local, skb, crypt)) < 0) + goto rx_dropped; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + /* skb: hdr + (possibly fragmented) plaintext payload */ + + if (local->host_decrypt && (fc & WLAN_FC_ISWEP) && + (frag != 0 || (fc & WLAN_FC_MOREFRAG))) { + int flen; + struct sk_buff *frag_skb = + prism2_frag_cache_get(local, hdr); + if (!frag_skb) { + printk(KERN_DEBUG "%s: Rx cannot get skb from " + "fragment cache (morefrag=%d seq=%u frag=%u)\n", + dev->name, (fc & WLAN_FC_MOREFRAG) != 0, + WLAN_GET_SEQ_SEQ(sc), frag); + goto rx_dropped; + } + + flen = skb->len; + if (frag != 0) + flen -= hdrlen; + + if (frag_skb->tail + flen > frag_skb->end) { + printk(KERN_WARNING "%s: host decrypted and " + "reassembled frame did not fit skb\n", + dev->name); + prism2_frag_cache_invalidate(local, hdr); + goto rx_dropped; + } + + if (frag == 0) { + /* copy first fragment (including full headers) into + * beginning of the fragment cache skb */ + memcpy(skb_put(frag_skb, flen), skb->data, flen); + } else { + /* append frame payload to the end of the fragment + * cache skb */ + memcpy(skb_put(frag_skb, flen), skb->data + hdrlen, + flen); + } + dev_kfree_skb(skb); + skb = NULL; + + if (fc & WLAN_FC_MOREFRAG) { + /* more fragments expected - leave the skb in fragment + * cache for now; it will be delivered to upper layers + * after all fragments have been received */ + goto rx_exit; + } + + /* this was the last fragment and the frame will be + * delivered, so remove skb from fragment cache */ + skb = frag_skb; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + prism2_frag_cache_invalidate(local, hdr); + } + + /* skb: hdr + (possible reassembled) full MSDU payload; possibly still + * encrypted/authenticated */ + + if (local->host_decrypt && (fc & WLAN_FC_ISWEP) && + hostap_rx_frame_decrypt_msdu(local, skb, keyidx, crypt)) + goto rx_dropped; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + if (crypt && !(fc & WLAN_FC_ISWEP) && !local->open_wep) { + if (local->ieee_802_1x && + hostap_is_eapol_frame(local, skb)) { + /* pass unencrypted EAPOL frames even if encryption is + * configured */ + PDEBUG(DEBUG_EXTRA2, "%s: RX: IEEE 802.1X - passing " + "unencrypted EAPOL frame\n", local->dev->name); + } else { + printk(KERN_DEBUG "%s: encryption configured, but RX " + "frame not encrypted (SA=" MACSTR ")\n", + local->dev->name, MAC2STR(hdr->addr2)); + goto rx_dropped; + } + } + + if (local->drop_unencrypted && !(fc & WLAN_FC_ISWEP) && + !hostap_is_eapol_frame(local, skb)) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: dropped unencrypted RX data " + "frame from " MACSTR " (drop_unencrypted=1)\n", + dev->name, MAC2STR(hdr->addr2)); + } + goto rx_dropped; + } + + /* skb: hdr + (possible reassembled) full plaintext payload */ + + payload = skb->data + hdrlen; + ethertype = (payload[6] << 8) | payload[7]; + + /* If IEEE 802.1X is used, check whether the port is authorized to send + * the received frame. */ + if (local->ieee_802_1x && local->iw_mode == IW_MODE_MASTER) { + if (ethertype == ETH_P_PAE) { + PDEBUG(DEBUG_EXTRA2, "%s: RX: IEEE 802.1X frame\n", + dev->name); + if (local->hostapd && local->apdev) { + /* Send IEEE 802.1X frames to the user + * space daemon for processing */ + prism2_rx_80211(local->apdev, skb, rx_stats, + PRISM2_RX_MGMT); + local->apdevstats.rx_packets++; + local->apdevstats.rx_bytes += skb->len; + goto rx_exit; + } + } else if (!frame_authorized) { + printk(KERN_DEBUG "%s: dropped frame from " + "unauthorized port (IEEE 802.1X): " + "ethertype=0x%04x\n", + dev->name, ethertype); + goto rx_dropped; + } + } + + /* convert hdr + possible LLC headers into Ethernet header */ + if (skb->len - hdrlen >= 8 && + ((memcmp(payload, rfc1042_header, 6) == 0 && + ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || + memcmp(payload, bridge_tunnel_header, 6) == 0)) { + /* remove RFC1042 or Bridge-Tunnel encapsulation and + * replace EtherType */ + skb_pull(skb, hdrlen + 6); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } else { + u16 len; + /* Leave Ethernet header part of hdr and full payload */ + skb_pull(skb, hdrlen); + len = htons(skb->len); + memcpy(skb_push(skb, 2), &len, 2); + memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); + memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); + } + + if (wds && ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) == WLAN_FC_TODS) && + skb->len >= ETH_HLEN + ETH_ALEN) { + /* Non-standard frame: get addr4 from its bogus location after + * the payload */ + memcpy(skb->data + ETH_ALEN, + skb->data + skb->len - ETH_ALEN, ETH_ALEN); + skb_trim(skb, skb->len - ETH_ALEN); + } + + stats->rx_packets++; + stats->rx_bytes += skb->len; + + if (local->iw_mode == IW_MODE_MASTER && !wds && + local->ap->bridge_packets) { + if (dst[0] & 0x01) { + /* copy multicast frame both to the higher layers and + * to the wireless media */ + local->ap->bridged_multicast++; + skb2 = skb_clone(skb, GFP_ATOMIC); + if (skb2 == NULL) + printk(KERN_DEBUG "%s: skb_clone failed for " + "multicast frame\n", dev->name); + } else if (hostap_is_sta_authorized(local->ap, dst)) { + /* send frame directly to the associated STA using + * wireless media and not passing to higher layers */ + local->ap->bridged_unicast++; + skb2 = skb; + skb = NULL; + } + } + + if (skb2 != NULL) { + /* send to wireless media */ + skb2->protocol = __constant_htons(ETH_P_802_3); + skb2->mac.raw = skb2->nh.raw = skb2->data; + /* skb2->nh.raw = skb2->data + ETH_HLEN; */ + skb2->dev = dev; + dev_queue_xmit(skb2); + } + + if (skb) { + skb->protocol = eth_type_trans(skb, dev); + memset(skb->cb, 0, sizeof(skb->cb)); + skb->dev = dev; + netif_rx(skb); + } + + rx_exit: + if (sta) + hostap_handle_sta_release(sta); + return; + + rx_dropped: + dev_kfree_skb(skb); + + stats->rx_dropped++; + goto rx_exit; +} + + +EXPORT_SYMBOL(hostap_80211_rx); diff --git a/drivers/net/wireless/hostap/hostap_80211_tx.c b/drivers/net/wireless/hostap/hostap_80211_tx.c new file mode 100644 index 0000000..8a94a80 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_80211_tx.c @@ -0,0 +1,522 @@ +void hostap_dump_tx_80211(const char *name, struct sk_buff *skb) +{ + struct hostap_ieee80211_hdr *hdr; + u16 fc; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + printk(KERN_DEBUG "%s: TX len=%d jiffies=%ld\n", + name, skb->len, jiffies); + + if (skb->len < 2) + return; + + fc = le16_to_cpu(hdr->frame_control); + printk(KERN_DEBUG " FC=0x%04x (type=%d:%d)%s%s", + fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc), + fc & WLAN_FC_TODS ? " [ToDS]" : "", + fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); + + if (skb->len < IEEE80211_DATA_HDR3_LEN) { + printk("\n"); + return; + } + + printk(" dur=0x%04x seq=0x%04x\n", le16_to_cpu(hdr->duration_id), + le16_to_cpu(hdr->seq_ctrl)); + + printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR, + MAC2STR(hdr->addr1), MAC2STR(hdr->addr2), MAC2STR(hdr->addr3)); + if (skb->len >= 30) + printk(" A4=" MACSTR, MAC2STR(hdr->addr4)); + printk("\n"); +} + + +/* hard_start_xmit function for data interfaces (wlan#, wlan#wds#, wlan#sta) + * Convert Ethernet header into a suitable IEEE 802.11 header depending on + * device configuration. */ +int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int need_headroom, need_tailroom = 0; + struct hostap_ieee80211_hdr hdr; + u16 fc, ethertype = 0; + enum { + WDS_NO = 0, WDS_OWN_FRAME, WDS_COMPLIANT_FRAME + } use_wds = WDS_NO; + u8 *encaps_data; + int hdr_len, encaps_len, skip_header_bytes; + int to_assoc_ap = 0; + struct hostap_skb_tx_data *meta; + + iface = netdev_priv(dev); + local = iface->local; + + if (skb->len < ETH_HLEN) { + printk(KERN_DEBUG "%s: hostap_data_start_xmit: short skb " + "(len=%d)\n", dev->name, skb->len); + kfree_skb(skb); + return 0; + } + + if (local->ddev != dev) { + use_wds = (local->iw_mode == IW_MODE_MASTER && + !(local->wds_type & HOSTAP_WDS_STANDARD_FRAME)) ? + WDS_OWN_FRAME : WDS_COMPLIANT_FRAME; + if (dev == local->stadev) { + to_assoc_ap = 1; + use_wds = WDS_NO; + } else if (dev == local->apdev) { + printk(KERN_DEBUG "%s: prism2_tx: trying to use " + "AP device with Ethernet net dev\n", dev->name); + kfree_skb(skb); + return 0; + } + } else { + if (local->iw_mode == IW_MODE_REPEAT) { + printk(KERN_DEBUG "%s: prism2_tx: trying to use " + "non-WDS link in Repeater mode\n", dev->name); + kfree_skb(skb); + return 0; + } else if (local->iw_mode == IW_MODE_INFRA && + (local->wds_type & HOSTAP_WDS_AP_CLIENT) && + memcmp(skb->data + ETH_ALEN, dev->dev_addr, + ETH_ALEN) != 0) { + /* AP client mode: send frames with foreign src addr + * using 4-addr WDS frames */ + use_wds = WDS_COMPLIANT_FRAME; + } + } + + /* Incoming skb->data: dst_addr[6], src_addr[6], proto[2], payload + * ==> + * Prism2 TX frame with 802.11 header: + * txdesc (address order depending on used mode; includes dst_addr and + * src_addr), possible encapsulation (RFC1042/Bridge-Tunnel; + * proto[2], payload {, possible addr4[6]} */ + + ethertype = (skb->data[12] << 8) | skb->data[13]; + + memset(&hdr, 0, sizeof(hdr)); + + /* Length of data after IEEE 802.11 header */ + encaps_data = NULL; + encaps_len = 0; + skip_header_bytes = ETH_HLEN; + if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) { + encaps_data = bridge_tunnel_header; + encaps_len = sizeof(bridge_tunnel_header); + skip_header_bytes -= 2; + } else if (ethertype >= 0x600) { + encaps_data = rfc1042_header; + encaps_len = sizeof(rfc1042_header); + skip_header_bytes -= 2; + } + + fc = (WLAN_FC_TYPE_DATA << 2) | (WLAN_FC_STYPE_DATA << 4); + hdr_len = IEEE80211_DATA_HDR3_LEN; + + if (use_wds != WDS_NO) { + /* Note! Prism2 station firmware has problems with sending real + * 802.11 frames with four addresses; until these problems can + * be fixed or worked around, 4-addr frames needed for WDS are + * using incompatible format: FromDS flag is not set and the + * fourth address is added after the frame payload; it is + * assumed, that the receiving station knows how to handle this + * frame format */ + + if (use_wds == WDS_COMPLIANT_FRAME) { + fc |= WLAN_FC_FROMDS | WLAN_FC_TODS; + /* From&To DS: Addr1 = RA, Addr2 = TA, Addr3 = DA, + * Addr4 = SA */ + memcpy(&hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); + hdr_len += ETH_ALEN; + } else { + /* bogus 4-addr format to workaround Prism2 station + * f/w bug */ + fc |= WLAN_FC_TODS; + /* From DS: Addr1 = DA (used as RA), + * Addr2 = BSSID (used as TA), Addr3 = SA (used as DA), + */ + + /* SA from skb->data + ETH_ALEN will be added after + * frame payload; use hdr.addr4 as a temporary buffer + */ + memcpy(&hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); + need_tailroom += ETH_ALEN; + } + + /* send broadcast and multicast frames to broadcast RA, if + * configured; otherwise, use unicast RA of the WDS link */ + if ((local->wds_type & HOSTAP_WDS_BROADCAST_RA) && + skb->data[0] & 0x01) + memset(&hdr.addr1, 0xff, ETH_ALEN); + else if (iface->type == HOSTAP_INTERFACE_WDS) + memcpy(&hdr.addr1, iface->u.wds.remote_addr, + ETH_ALEN); + else + memcpy(&hdr.addr1, local->bssid, ETH_ALEN); + memcpy(&hdr.addr2, dev->dev_addr, ETH_ALEN); + memcpy(&hdr.addr3, skb->data, ETH_ALEN); + } else if (local->iw_mode == IW_MODE_MASTER && !to_assoc_ap) { + fc |= WLAN_FC_FROMDS; + /* From DS: Addr1 = DA, Addr2 = BSSID, Addr3 = SA */ + memcpy(&hdr.addr1, skb->data, ETH_ALEN); + memcpy(&hdr.addr2, dev->dev_addr, ETH_ALEN); + memcpy(&hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN); + } else if (local->iw_mode == IW_MODE_INFRA || to_assoc_ap) { + fc |= WLAN_FC_TODS; + /* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */ + memcpy(&hdr.addr1, to_assoc_ap ? + local->assoc_ap_addr : local->bssid, ETH_ALEN); + memcpy(&hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); + memcpy(&hdr.addr3, skb->data, ETH_ALEN); + } else if (local->iw_mode == IW_MODE_ADHOC) { + /* not From/To DS: Addr1 = DA, Addr2 = SA, Addr3 = BSSID */ + memcpy(&hdr.addr1, skb->data, ETH_ALEN); + memcpy(&hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); + memcpy(&hdr.addr3, local->bssid, ETH_ALEN); + } + + hdr.frame_control = cpu_to_le16(fc); + + skb_pull(skb, skip_header_bytes); + need_headroom = local->func->need_tx_headroom + hdr_len + encaps_len; + if (skb_tailroom(skb) < need_tailroom) { + skb = skb_unshare(skb, GFP_ATOMIC); + if (skb == NULL) { + iface->stats.tx_dropped++; + return 0; + } + if (pskb_expand_head(skb, need_headroom, need_tailroom, + GFP_ATOMIC)) { + kfree_skb(skb); + iface->stats.tx_dropped++; + return 0; + } + } else if (skb_headroom(skb) < need_headroom) { + struct sk_buff *tmp = skb; + skb = skb_realloc_headroom(skb, need_headroom); + kfree_skb(tmp); + if (skb == NULL) { + iface->stats.tx_dropped++; + return 0; + } + } else { + skb = skb_unshare(skb, GFP_ATOMIC); + if (skb == NULL) { + iface->stats.tx_dropped++; + return 0; + } + } + + if (encaps_data) + memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len); + memcpy(skb_push(skb, hdr_len), &hdr, hdr_len); + if (use_wds == WDS_OWN_FRAME) { + memcpy(skb_put(skb, ETH_ALEN), &hdr.addr4, ETH_ALEN); + } + + iface->stats.tx_packets++; + iface->stats.tx_bytes += skb->len; + + skb->mac.raw = skb->data; + meta = (struct hostap_skb_tx_data *) skb->cb; + memset(meta, 0, sizeof(*meta)); + meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; + meta->wds = use_wds; + meta->ethertype = ethertype; + meta->iface = iface; + + /* Send IEEE 802.11 encapsulated frame using the master radio device */ + skb->dev = local->dev; + dev_queue_xmit(skb); + return 0; +} + + +/* hard_start_xmit function for hostapd wlan#ap interfaces */ +int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hostap_skb_tx_data *meta; + struct hostap_ieee80211_hdr *hdr; + u16 fc; + + iface = netdev_priv(dev); + local = iface->local; + + if (skb->len < 10) { + printk(KERN_DEBUG "%s: hostap_mgmt_start_xmit: short skb " + "(len=%d)\n", dev->name, skb->len); + kfree_skb(skb); + return 0; + } + + iface->stats.tx_packets++; + iface->stats.tx_bytes += skb->len; + + meta = (struct hostap_skb_tx_data *) skb->cb; + memset(meta, 0, sizeof(*meta)); + meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; + meta->iface = iface; + + if (skb->len >= IEEE80211_DATA_HDR3_LEN + sizeof(rfc1042_header) + 2) { + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA && + WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_DATA) { + u8 *pos = &skb->data[IEEE80211_DATA_HDR3_LEN + + sizeof(rfc1042_header)]; + meta->ethertype = (pos[0] << 8) | pos[1]; + } + } + + /* Send IEEE 802.11 encapsulated frame using the master radio device */ + skb->dev = local->dev; + dev_queue_xmit(skb); + return 0; +} + + +/* Called only from software IRQ */ +struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb, + struct prism2_crypt_data *crypt) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hostap_ieee80211_hdr *hdr; + u16 fc; + int hdr_len, res; + + iface = netdev_priv(skb->dev); + local = iface->local; + + if (skb->len < IEEE80211_DATA_HDR3_LEN) { + kfree_skb(skb); + return NULL; + } + + if (local->tkip_countermeasures && + crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) { + hdr = (struct hostap_ieee80211_hdr *) skb->data; + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: TKIP countermeasures: dropped " + "TX packet to " MACSTR "\n", + local->dev->name, MAC2STR(hdr->addr1)); + } + kfree_skb(skb); + return NULL; + } + + skb = skb_unshare(skb, GFP_ATOMIC); + if (skb == NULL) + return NULL; + + if ((skb_headroom(skb) < crypt->ops->extra_prefix_len || + skb_tailroom(skb) < crypt->ops->extra_postfix_len) && + pskb_expand_head(skb, crypt->ops->extra_prefix_len, + crypt->ops->extra_postfix_len, GFP_ATOMIC)) { + kfree_skb(skb); + return NULL; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + hdr_len = hostap_80211_get_hdrlen(fc); + + /* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so + * call both MSDU and MPDU encryption functions from here. */ + atomic_inc(&crypt->refcnt); + res = 0; + if (crypt->ops->encrypt_msdu) + res = crypt->ops->encrypt_msdu(skb, hdr_len, crypt->priv); + if (res == 0 && crypt->ops->encrypt_mpdu) + res = crypt->ops->encrypt_mpdu(skb, hdr_len, crypt->priv); + atomic_dec(&crypt->refcnt); + if (res < 0) { + kfree_skb(skb); + return NULL; + } + + return skb; +} + + +/* hard_start_xmit function for master radio interface wifi#. + * AP processing (TX rate control, power save buffering, etc.). + * Use hardware TX function to send the frame. */ +int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret = 1; + u16 fc; + struct hostap_tx_data tx; + ap_tx_ret tx_ret; + struct hostap_skb_tx_data *meta; + int no_encrypt = 0; + struct hostap_ieee80211_hdr *hdr; + + iface = netdev_priv(dev); + local = iface->local; + + tx.skb = skb; + tx.sta_ptr = NULL; + + meta = (struct hostap_skb_tx_data *) skb->cb; + if (meta->magic != HOSTAP_SKB_TX_DATA_MAGIC) { + printk(KERN_DEBUG "%s: invalid skb->cb magic (0x%08x, " + "expected 0x%08x)\n", + dev->name, meta->magic, HOSTAP_SKB_TX_DATA_MAGIC); + ret = 0; + iface->stats.tx_dropped++; + goto fail; + } + + if (local->host_encrypt) { + /* Set crypt to default algorithm and key; will be replaced in + * AP code if STA has own alg/key */ + tx.crypt = local->crypt[local->tx_keyidx]; + tx.host_encrypt = 1; + } else { + tx.crypt = NULL; + tx.host_encrypt = 0; + } + + if (skb->len < 24) { + printk(KERN_DEBUG "%s: hostap_master_start_xmit: short skb " + "(len=%d)\n", dev->name, skb->len); + ret = 0; + iface->stats.tx_dropped++; + goto fail; + } + + /* FIX (?): + * Wi-Fi 802.11b test plan suggests that AP should ignore power save + * bit in authentication and (re)association frames and assume tha + * STA remains awake for the response. */ + tx_ret = hostap_handle_sta_tx(local, &tx); + skb = tx.skb; + meta = (struct hostap_skb_tx_data *) skb->cb; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + switch (tx_ret) { + case AP_TX_CONTINUE: + break; + case AP_TX_CONTINUE_NOT_AUTHORIZED: + if (local->ieee_802_1x && + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA && + meta->ethertype != ETH_P_PAE && !meta->wds) { + printk(KERN_DEBUG "%s: dropped frame to unauthorized " + "port (IEEE 802.1X): ethertype=0x%04x\n", + dev->name, meta->ethertype); + hostap_dump_tx_80211(dev->name, skb); + + ret = 0; /* drop packet */ + iface->stats.tx_dropped++; + goto fail; + } + break; + case AP_TX_DROP: + ret = 0; /* drop packet */ + iface->stats.tx_dropped++; + goto fail; + case AP_TX_RETRY: + goto fail; + case AP_TX_BUFFERED: + /* do not free skb here, it will be freed when the + * buffered frame is sent/timed out */ + ret = 0; + goto tx_exit; + } + + /* Request TX callback if protocol version is 2 in 802.11 header; + * this version 2 is a special case used between hostapd and kernel + * driver */ + if (((fc & WLAN_FC_PVER) == BIT(1)) && + local->ap && local->ap->tx_callback_idx && meta->tx_cb_idx == 0) { + meta->tx_cb_idx = local->ap->tx_callback_idx; + + /* remove special version from the frame header */ + fc &= ~WLAN_FC_PVER; + hdr->frame_control = cpu_to_le16(fc); + } + + if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_DATA) { + no_encrypt = 1; + tx.crypt = NULL; + } + + if (local->ieee_802_1x && meta->ethertype == ETH_P_PAE && tx.crypt && + !(fc & WLAN_FC_ISWEP)) { + no_encrypt = 1; + PDEBUG(DEBUG_EXTRA2, "%s: TX: IEEE 802.1X - passing " + "unencrypted EAPOL frame\n", dev->name); + tx.crypt = NULL; /* no encryption for IEEE 802.1X frames */ + } + + if (tx.crypt && (!tx.crypt->ops || !tx.crypt->ops->encrypt_mpdu)) + tx.crypt = NULL; + else if ((tx.crypt || local->crypt[local->tx_keyidx]) && !no_encrypt) { + /* Add ISWEP flag both for firmware and host based encryption + */ + fc |= WLAN_FC_ISWEP; + hdr->frame_control = cpu_to_le16(fc); + } else if (local->drop_unencrypted && + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA && + meta->ethertype != ETH_P_PAE) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: dropped unencrypted TX data " + "frame (drop_unencrypted=1)\n", dev->name); + } + iface->stats.tx_dropped++; + ret = 0; + goto fail; + } + + if (tx.crypt) { + skb = hostap_tx_encrypt(skb, tx.crypt); + if (skb == NULL) { + printk(KERN_DEBUG "%s: TX - encryption failed\n", + dev->name); + ret = 0; + goto fail; + } + meta = (struct hostap_skb_tx_data *) skb->cb; + if (meta->magic != HOSTAP_SKB_TX_DATA_MAGIC) { + printk(KERN_DEBUG "%s: invalid skb->cb magic (0x%08x, " + "expected 0x%08x) after hostap_tx_encrypt\n", + dev->name, meta->magic, + HOSTAP_SKB_TX_DATA_MAGIC); + ret = 0; + iface->stats.tx_dropped++; + goto fail; + } + } + + if (local->func->tx == NULL || local->func->tx(skb, dev)) { + ret = 0; + iface->stats.tx_dropped++; + } else { + ret = 0; + iface->stats.tx_packets++; + iface->stats.tx_bytes += skb->len; + } + + fail: + if (!ret && skb) + dev_kfree_skb(skb); + tx_exit: + if (tx.sta_ptr) + hostap_handle_sta_release(tx.sta_ptr); + return ret; +} + + +EXPORT_SYMBOL(hostap_dump_tx_80211); +EXPORT_SYMBOL(hostap_tx_encrypt); +EXPORT_SYMBOL(hostap_master_start_xmit); diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c new file mode 100644 index 0000000..b9684e3 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -0,0 +1,3286 @@ +/* + * Intersil Prism2 driver with Host AP (software access point) support + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2003, Jouni Malinen + * + * This file is to be included into hostap.c when S/W AP functionality is + * compiled. + * + * AP: FIX: + * - if unicast Class 2 (assoc,reassoc,disassoc) frame received from + * unauthenticated STA, send deauth. frame (8802.11: 5.5) + * - if unicast Class 3 (data with to/from DS,deauth,pspoll) frame received + * from authenticated, but unassoc STA, send disassoc frame (8802.11: 5.5) + * - if unicast Class 3 received from unauthenticated STA, send deauth. frame + * (8802.11: 5.5) + */ + +static int other_ap_policy[MAX_PARM_DEVICES] = { AP_OTHER_AP_SKIP_ALL, + DEF_INTS }; +module_param_array(other_ap_policy, int, NULL, 0444); +MODULE_PARM_DESC(other_ap_policy, "Other AP beacon monitoring policy (0-3)"); + +static int ap_max_inactivity[MAX_PARM_DEVICES] = { AP_MAX_INACTIVITY_SEC, + DEF_INTS }; +module_param_array(ap_max_inactivity, int, NULL, 0444); +MODULE_PARM_DESC(ap_max_inactivity, "AP timeout (in seconds) for station " + "inactivity"); + +static int ap_bridge_packets[MAX_PARM_DEVICES] = { 1, DEF_INTS }; +module_param_array(ap_bridge_packets, int, NULL, 0444); +MODULE_PARM_DESC(ap_bridge_packets, "Bridge packets directly between " + "stations"); + +static int autom_ap_wds[MAX_PARM_DEVICES] = { 0, DEF_INTS }; +module_param_array(autom_ap_wds, int, NULL, 0444); +MODULE_PARM_DESC(autom_ap_wds, "Add WDS connections to other APs " + "automatically"); + + +static struct sta_info* ap_get_sta(struct ap_data *ap, u8 *sta); +static void hostap_event_expired_sta(struct net_device *dev, + struct sta_info *sta); +static void handle_add_proc_queue(void *data); + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +static void handle_wds_oper_queue(void *data); +static void prism2_send_mgmt(struct net_device *dev, + int type, int subtype, char *body, + int body_len, u8 *addr, u16 tx_cb_idx); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +#ifndef PRISM2_NO_PROCFS_DEBUG +static int ap_debug_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + struct ap_data *ap = (struct ap_data *) data; + + if (off != 0) { + *eof = 1; + return 0; + } + + p += sprintf(p, "BridgedUnicastFrames=%u\n", ap->bridged_unicast); + p += sprintf(p, "BridgedMulticastFrames=%u\n", ap->bridged_multicast); + p += sprintf(p, "max_inactivity=%u\n", ap->max_inactivity / HZ); + p += sprintf(p, "bridge_packets=%u\n", ap->bridge_packets); + p += sprintf(p, "nullfunc_ack=%u\n", ap->nullfunc_ack); + p += sprintf(p, "autom_ap_wds=%u\n", ap->autom_ap_wds); + p += sprintf(p, "auth_algs=%u\n", ap->local->auth_algs); + p += sprintf(p, "tx_drop_nonassoc=%u\n", ap->tx_drop_nonassoc); + + return (p - page); +} +#endif /* PRISM2_NO_PROCFS_DEBUG */ + + +static void ap_sta_hash_add(struct ap_data *ap, struct sta_info *sta) +{ + sta->hnext = ap->sta_hash[STA_HASH(sta->addr)]; + ap->sta_hash[STA_HASH(sta->addr)] = sta; +} + +static void ap_sta_hash_del(struct ap_data *ap, struct sta_info *sta) +{ + struct sta_info *s; + + s = ap->sta_hash[STA_HASH(sta->addr)]; + if (s == NULL) return; + if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) { + ap->sta_hash[STA_HASH(sta->addr)] = s->hnext; + return; + } + + while (s->hnext != NULL && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) + != 0) + s = s->hnext; + if (s->hnext != NULL) + s->hnext = s->hnext->hnext; + else + printk("AP: could not remove STA " MACSTR " from hash table\n", + MAC2STR(sta->addr)); +} + +static void ap_free_sta(struct ap_data *ap, struct sta_info *sta) +{ + if (sta->ap && sta->local) + hostap_event_expired_sta(sta->local->dev, sta); + + if (ap->proc != NULL) { + char name[20]; + sprintf(name, MACSTR, MAC2STR(sta->addr)); + remove_proc_entry(name, ap->proc); + } + + if (sta->crypt) { + sta->crypt->ops->deinit(sta->crypt->priv); + kfree(sta->crypt); + sta->crypt = NULL; + } + + skb_queue_purge(&sta->tx_buf); + + ap->num_sta--; +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (sta->aid > 0) + ap->sta_aid[sta->aid - 1] = NULL; + + if (!sta->ap && sta->u.sta.challenge) + kfree(sta->u.sta.challenge); + del_timer(&sta->timer); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + kfree(sta); +} + + +static void hostap_set_tim(local_info_t *local, int aid, int set) +{ + if (local->func->set_tim) + local->func->set_tim(local->dev, aid, set); +} + + +static void hostap_event_new_sta(struct net_device *dev, struct sta_info *sta) +{ + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof(wrqu)); + memcpy(wrqu.addr.sa_data, sta->addr, ETH_ALEN); + wrqu.addr.sa_family = ARPHRD_ETHER; + wireless_send_event(dev, IWEVREGISTERED, &wrqu, NULL); +} + + +static void hostap_event_expired_sta(struct net_device *dev, + struct sta_info *sta) +{ + union iwreq_data wrqu; + memset(&wrqu, 0, sizeof(wrqu)); + memcpy(wrqu.addr.sa_data, sta->addr, ETH_ALEN); + wrqu.addr.sa_family = ARPHRD_ETHER; + wireless_send_event(dev, IWEVEXPIRED, &wrqu, NULL); +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + +static void ap_handle_timer(unsigned long data) +{ + struct sta_info *sta = (struct sta_info *) data; + local_info_t *local; + struct ap_data *ap; + unsigned long next_time = 0; + int was_assoc; + + if (sta == NULL || sta->local == NULL || sta->local->ap == NULL) { + PDEBUG(DEBUG_AP, "ap_handle_timer() called with NULL data\n"); + return; + } + + local = sta->local; + ap = local->ap; + was_assoc = sta->flags & WLAN_STA_ASSOC; + + if (atomic_read(&sta->users) != 0) + next_time = jiffies + HZ; + else if ((sta->flags & WLAN_STA_PERM) && !(sta->flags & WLAN_STA_AUTH)) + next_time = jiffies + ap->max_inactivity; + + if (time_before(jiffies, sta->last_rx + ap->max_inactivity)) { + /* station activity detected; reset timeout state */ + sta->timeout_next = STA_NULLFUNC; + next_time = sta->last_rx + ap->max_inactivity; + } else if (sta->timeout_next == STA_DISASSOC && + !(sta->flags & WLAN_STA_PENDING_POLL)) { + /* STA ACKed data nullfunc frame poll */ + sta->timeout_next = STA_NULLFUNC; + next_time = jiffies + ap->max_inactivity; + } + + if (next_time) { + sta->timer.expires = next_time; + add_timer(&sta->timer); + return; + } + + if (sta->ap) + sta->timeout_next = STA_DEAUTH; + + if (sta->timeout_next == STA_DEAUTH && !(sta->flags & WLAN_STA_PERM)) { + spin_lock(&ap->sta_table_lock); + ap_sta_hash_del(ap, sta); + list_del(&sta->list); + spin_unlock(&ap->sta_table_lock); + sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC); + } else if (sta->timeout_next == STA_DISASSOC) + sta->flags &= ~WLAN_STA_ASSOC; + + if (was_assoc && !(sta->flags & WLAN_STA_ASSOC) && !sta->ap) + hostap_event_expired_sta(local->dev, sta); + + if (sta->timeout_next == STA_DEAUTH && sta->aid > 0 && + !skb_queue_empty(&sta->tx_buf)) { + hostap_set_tim(local, sta->aid, 0); + sta->flags &= ~WLAN_STA_TIM; + } + + if (sta->ap) { + if (ap->autom_ap_wds) { + PDEBUG(DEBUG_AP, "%s: removing automatic WDS " + "connection to AP " MACSTR "\n", + local->dev->name, MAC2STR(sta->addr)); + hostap_wds_link_oper(local, sta->addr, WDS_DEL); + } + } else if (sta->timeout_next == STA_NULLFUNC) { + /* send data frame to poll STA and check whether this frame + * is ACKed */ + /* FIX: WLAN_FC_STYPE_NULLFUNC would be more appropriate, but + * it is apparently not retried so TX Exc events are not + * received for it */ + sta->flags |= WLAN_STA_PENDING_POLL; + prism2_send_mgmt(local->dev, WLAN_FC_TYPE_DATA, + WLAN_FC_STYPE_DATA, NULL, 0, + sta->addr, ap->tx_callback_poll); + } else { + int deauth = sta->timeout_next == STA_DEAUTH; + u16 resp; + PDEBUG(DEBUG_AP, "%s: sending %s info to STA " MACSTR + "(last=%lu, jiffies=%lu)\n", + local->dev->name, + deauth ? "deauthentication" : "disassociation", + MAC2STR(sta->addr), sta->last_rx, jiffies); + + resp = cpu_to_le16(deauth ? WLAN_REASON_PREV_AUTH_NOT_VALID : + WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY); + prism2_send_mgmt(local->dev, WLAN_FC_TYPE_MGMT, + (deauth ? WLAN_FC_STYPE_DEAUTH : + WLAN_FC_STYPE_DISASSOC), + (char *) &resp, 2, sta->addr, 0); + } + + if (sta->timeout_next == STA_DEAUTH) { + if (sta->flags & WLAN_STA_PERM) { + PDEBUG(DEBUG_AP, "%s: STA " MACSTR " would have been " + "removed, but it has 'perm' flag\n", + local->dev->name, MAC2STR(sta->addr)); + } else + ap_free_sta(ap, sta); + return; + } + + if (sta->timeout_next == STA_NULLFUNC) { + sta->timeout_next = STA_DISASSOC; + sta->timer.expires = jiffies + AP_DISASSOC_DELAY; + } else { + sta->timeout_next = STA_DEAUTH; + sta->timer.expires = jiffies + AP_DEAUTH_DELAY; + } + + add_timer(&sta->timer); +} + + +void hostap_deauth_all_stas(struct net_device *dev, struct ap_data *ap, + int resend) +{ + u8 addr[ETH_ALEN]; + u16 resp; + int i; + + PDEBUG(DEBUG_AP, "%s: Deauthenticate all stations\n", dev->name); + memset(addr, 0xff, ETH_ALEN); + + resp = __constant_cpu_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID); + + /* deauth message sent; try to resend it few times; the message is + * broadcast, so it may be delayed until next DTIM; there is not much + * else we can do at this point since the driver is going to be shut + * down */ + for (i = 0; i < 5; i++) { + prism2_send_mgmt(dev, WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH, + (char *) &resp, 2, addr, 0); + + if (!resend || ap->num_sta <= 0) + return; + + mdelay(50); + } +} + + +static int ap_control_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + struct ap_data *ap = (struct ap_data *) data; + char *policy_txt; + struct list_head *ptr; + struct mac_entry *entry; + + if (off != 0) { + *eof = 1; + return 0; + } + + switch (ap->mac_restrictions.policy) { + case MAC_POLICY_OPEN: + policy_txt = "open"; + break; + case MAC_POLICY_ALLOW: + policy_txt = "allow"; + break; + case MAC_POLICY_DENY: + policy_txt = "deny"; + break; + default: + policy_txt = "unknown"; + break; + }; + p += sprintf(p, "MAC policy: %s\n", policy_txt); + p += sprintf(p, "MAC entries: %u\n", ap->mac_restrictions.entries); + p += sprintf(p, "MAC list:\n"); + spin_lock_bh(&ap->mac_restrictions.lock); + for (ptr = ap->mac_restrictions.mac_list.next; + ptr != &ap->mac_restrictions.mac_list; ptr = ptr->next) { + if (p - page > PAGE_SIZE - 80) { + p += sprintf(p, "All entries did not fit one page.\n"); + break; + } + + entry = list_entry(ptr, struct mac_entry, list); + p += sprintf(p, MACSTR "\n", MAC2STR(entry->addr)); + } + spin_unlock_bh(&ap->mac_restrictions.lock); + + return (p - page); +} + + +static int ap_control_add_mac(struct mac_restrictions *mac_restrictions, + u8 *mac) +{ + struct mac_entry *entry; + + entry = kmalloc(sizeof(struct mac_entry), GFP_KERNEL); + if (entry == NULL) + return -1; + + memcpy(entry->addr, mac, ETH_ALEN); + + spin_lock_bh(&mac_restrictions->lock); + list_add_tail(&entry->list, &mac_restrictions->mac_list); + mac_restrictions->entries++; + spin_unlock_bh(&mac_restrictions->lock); + + return 0; +} + + +static int ap_control_del_mac(struct mac_restrictions *mac_restrictions, + u8 *mac) +{ + struct list_head *ptr; + struct mac_entry *entry; + + spin_lock_bh(&mac_restrictions->lock); + for (ptr = mac_restrictions->mac_list.next; + ptr != &mac_restrictions->mac_list; ptr = ptr->next) { + entry = list_entry(ptr, struct mac_entry, list); + + if (memcmp(entry->addr, mac, ETH_ALEN) == 0) { + list_del(ptr); + kfree(entry); + mac_restrictions->entries--; + spin_unlock_bh(&mac_restrictions->lock); + return 0; + } + } + spin_unlock_bh(&mac_restrictions->lock); + return -1; +} + + +static int ap_control_mac_deny(struct mac_restrictions *mac_restrictions, + u8 *mac) +{ + struct list_head *ptr; + struct mac_entry *entry; + int found = 0; + + if (mac_restrictions->policy == MAC_POLICY_OPEN) + return 0; + + spin_lock_bh(&mac_restrictions->lock); + for (ptr = mac_restrictions->mac_list.next; + ptr != &mac_restrictions->mac_list; ptr = ptr->next) { + entry = list_entry(ptr, struct mac_entry, list); + + if (memcmp(entry->addr, mac, ETH_ALEN) == 0) { + found = 1; + break; + } + } + spin_unlock_bh(&mac_restrictions->lock); + + if (mac_restrictions->policy == MAC_POLICY_ALLOW) + return !found; + else + return found; +} + + +static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions) +{ + struct list_head *ptr, *n; + struct mac_entry *entry; + + if (mac_restrictions->entries == 0) + return; + + spin_lock_bh(&mac_restrictions->lock); + for (ptr = mac_restrictions->mac_list.next, n = ptr->next; + ptr != &mac_restrictions->mac_list; + ptr = n, n = ptr->next) { + entry = list_entry(ptr, struct mac_entry, list); + list_del(ptr); + kfree(entry); + } + mac_restrictions->entries = 0; + spin_unlock_bh(&mac_restrictions->lock); +} + + +static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, + u8 *mac) +{ + struct sta_info *sta; + u16 resp; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, mac); + if (sta) { + ap_sta_hash_del(ap, sta); + list_del(&sta->list); + } + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta) + return -EINVAL; + + resp = cpu_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID); + prism2_send_mgmt(dev, WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_DEAUTH, + (char *) &resp, 2, sta->addr, 0); + + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap) + hostap_event_expired_sta(dev, sta); + + ap_free_sta(ap, sta); + + return 0; +} + +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +static void ap_control_kickall(struct ap_data *ap) +{ + struct list_head *ptr, *n; + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + for (ptr = ap->sta_list.next, n = ptr->next; ptr != &ap->sta_list; + ptr = n, n = ptr->next) { + sta = list_entry(ptr, struct sta_info, list); + ap_sta_hash_del(ap, sta); + list_del(&sta->list); + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap && sta->local) + hostap_event_expired_sta(sta->local->dev, sta); + ap_free_sta(ap, sta); + } + spin_unlock_bh(&ap->sta_table_lock); +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + +#define PROC_LIMIT (PAGE_SIZE - 80) + +static int prism2_ap_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + struct ap_data *ap = (struct ap_data *) data; + struct list_head *ptr; + int i; + + if (off > PROC_LIMIT) { + *eof = 1; + return 0; + } + + p += sprintf(p, "# BSSID CHAN SIGNAL NOISE RATE SSID FLAGS\n"); + spin_lock_bh(&ap->sta_table_lock); + for (ptr = ap->sta_list.next; ptr != &ap->sta_list; ptr = ptr->next) { + struct sta_info *sta = (struct sta_info *) ptr; + + if (!sta->ap) + continue; + + p += sprintf(p, MACSTR " %d %d %d %d '", MAC2STR(sta->addr), + sta->u.ap.channel, sta->last_rx_signal, + sta->last_rx_silence, sta->last_rx_rate); + for (i = 0; i < sta->u.ap.ssid_len; i++) + p += sprintf(p, ((sta->u.ap.ssid[i] >= 32 && + sta->u.ap.ssid[i] < 127) ? + "%c" : "<%02x>"), + sta->u.ap.ssid[i]); + p += sprintf(p, "'"); + if (sta->capability & WLAN_CAPABILITY_ESS) + p += sprintf(p, " [ESS]"); + if (sta->capability & WLAN_CAPABILITY_IBSS) + p += sprintf(p, " [IBSS]"); + if (sta->capability & WLAN_CAPABILITY_PRIVACY) + p += sprintf(p, " [WEP]"); + p += sprintf(p, "\n"); + + if ((p - page) > PROC_LIMIT) { + printk(KERN_DEBUG "hostap: ap proc did not fit\n"); + break; + } + } + spin_unlock_bh(&ap->sta_table_lock); + + if ((p - page) <= off) { + *eof = 1; + return 0; + } + + *start = page + off; + + return (p - page - off); +} +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +void hostap_check_sta_fw_version(struct ap_data *ap, int sta_fw_ver) +{ + if (!ap) + return; + + if (sta_fw_ver == PRISM2_FW_VER(0,8,0)) { + PDEBUG(DEBUG_AP, "Using data::nullfunc ACK workaround - " + "firmware upgrade recommended\n"); + ap->nullfunc_ack = 1; + } else + ap->nullfunc_ack = 0; + + if (sta_fw_ver == PRISM2_FW_VER(1,4,2)) { + printk(KERN_WARNING "%s: Warning: secondary station firmware " + "version 1.4.2 does not seem to work in Host AP mode\n", + ap->local->dev->name); + } +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_ap_tx_cb(struct sk_buff *skb, int ok, void *data) +{ + struct ap_data *ap = data; + u16 fc; + struct hostap_ieee80211_hdr *hdr; + + if (!ap->local->hostapd || !ap->local->apdev) { + dev_kfree_skb(skb); + return; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + + /* Pass the TX callback frame to the hostapd; use 802.11 header version + * 1 to indicate failure (no ACK) and 2 success (frame ACKed) */ + + fc &= ~WLAN_FC_PVER; + fc |= ok ? BIT(1) : BIT(0); + hdr->frame_control = cpu_to_le16(fc); + + skb->dev = ap->local->apdev; + skb_pull(skb, hostap_80211_get_hdrlen(fc)); + skb->pkt_type = PACKET_OTHERHOST; + skb->protocol = __constant_htons(ETH_P_802_2); + memset(skb->cb, 0, sizeof(skb->cb)); + netif_rx(skb); +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +/* Called only as a tasklet (software IRQ) */ +static void hostap_ap_tx_cb_auth(struct sk_buff *skb, int ok, void *data) +{ + struct ap_data *ap = data; + struct net_device *dev = ap->local->dev; + struct hostap_ieee80211_hdr *hdr; + u16 fc, *pos, auth_alg, auth_transaction, status; + struct sta_info *sta = NULL; + char *txt = NULL; + + if (ap->local->hostapd) { + dev_kfree_skb(skb); + return; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT || + WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_AUTH || + skb->len < IEEE80211_MGMT_HDR_LEN + 6) { + printk(KERN_DEBUG "%s: hostap_ap_tx_cb_auth received invalid " + "frame\n", dev->name); + dev_kfree_skb(skb); + return; + } + + pos = (u16 *) (skb->data + IEEE80211_MGMT_HDR_LEN); + auth_alg = le16_to_cpu(*pos++); + auth_transaction = le16_to_cpu(*pos++); + status = le16_to_cpu(*pos++); + + if (!ok) { + txt = "frame was not ACKed"; + goto done; + } + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, hdr->addr1); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&ap->sta_table_lock); + + if (!sta) { + txt = "STA not found"; + goto done; + } + + if (status == WLAN_STATUS_SUCCESS && + ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 2) || + (auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 4))) { + txt = "STA authenticated"; + sta->flags |= WLAN_STA_AUTH; + sta->last_auth = jiffies; + } else if (status != WLAN_STATUS_SUCCESS) + txt = "authentication failed"; + + done: + if (sta) + atomic_dec(&sta->users); + if (txt) { + PDEBUG(DEBUG_AP, "%s: " MACSTR " auth_cb - alg=%d trans#=%d " + "status=%d - %s\n", + dev->name, MAC2STR(hdr->addr1), auth_alg, + auth_transaction, status, txt); + } + dev_kfree_skb(skb); +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_ap_tx_cb_assoc(struct sk_buff *skb, int ok, void *data) +{ + struct ap_data *ap = data; + struct net_device *dev = ap->local->dev; + struct hostap_ieee80211_hdr *hdr; + u16 fc, *pos, status; + struct sta_info *sta = NULL; + char *txt = NULL; + + if (ap->local->hostapd) { + dev_kfree_skb(skb); + return; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT || + (WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ASSOC_RESP && + WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_REASSOC_RESP) || + skb->len < IEEE80211_MGMT_HDR_LEN + 4) { + printk(KERN_DEBUG "%s: hostap_ap_tx_cb_assoc received invalid " + "frame\n", dev->name); + dev_kfree_skb(skb); + return; + } + + if (!ok) { + txt = "frame was not ACKed"; + goto done; + } + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, hdr->addr1); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&ap->sta_table_lock); + + if (!sta) { + txt = "STA not found"; + goto done; + } + + pos = (u16 *) (skb->data + IEEE80211_MGMT_HDR_LEN); + pos++; + status = le16_to_cpu(*pos++); + if (status == WLAN_STATUS_SUCCESS) { + if (!(sta->flags & WLAN_STA_ASSOC)) + hostap_event_new_sta(dev, sta); + txt = "STA associated"; + sta->flags |= WLAN_STA_ASSOC; + sta->last_assoc = jiffies; + } else + txt = "association failed"; + + done: + if (sta) + atomic_dec(&sta->users); + if (txt) { + PDEBUG(DEBUG_AP, "%s: " MACSTR " assoc_cb - %s\n", + dev->name, MAC2STR(hdr->addr1), txt); + } + dev_kfree_skb(skb); +} + +/* Called only as a tasklet (software IRQ); TX callback for poll frames used + * in verifying whether the STA is still present. */ +static void hostap_ap_tx_cb_poll(struct sk_buff *skb, int ok, void *data) +{ + struct ap_data *ap = data; + struct hostap_ieee80211_hdr *hdr; + struct sta_info *sta; + + if (skb->len < 24) + goto fail; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + if (ok) { + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, hdr->addr1); + if (sta) + sta->flags &= ~WLAN_STA_PENDING_POLL; + spin_unlock(&ap->sta_table_lock); + } else { + PDEBUG(DEBUG_AP, "%s: STA " MACSTR " did not ACK activity " + "poll frame\n", ap->local->dev->name, + MAC2STR(hdr->addr1)); + } + + fail: + dev_kfree_skb(skb); +} +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +void hostap_init_data(local_info_t *local) +{ + struct ap_data *ap = local->ap; + + if (ap == NULL) { + printk(KERN_WARNING "hostap_init_data: ap == NULL\n"); + return; + } + memset(ap, 0, sizeof(struct ap_data)); + ap->local = local; + + ap->ap_policy = GET_INT_PARM(other_ap_policy, local->card_idx); + ap->bridge_packets = GET_INT_PARM(ap_bridge_packets, local->card_idx); + ap->max_inactivity = + GET_INT_PARM(ap_max_inactivity, local->card_idx) * HZ; + ap->autom_ap_wds = GET_INT_PARM(autom_ap_wds, local->card_idx); + + spin_lock_init(&ap->sta_table_lock); + INIT_LIST_HEAD(&ap->sta_list); + + /* Initialize task queue structure for AP management */ + INIT_WORK(&local->ap->add_sta_proc_queue, handle_add_proc_queue, ap); + + ap->tx_callback_idx = + hostap_tx_callback_register(local, hostap_ap_tx_cb, ap); + if (ap->tx_callback_idx == 0) + printk(KERN_WARNING "%s: failed to register TX callback for " + "AP\n", local->dev->name); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + INIT_WORK(&local->ap->wds_oper_queue, handle_wds_oper_queue, local); + + ap->tx_callback_auth = + hostap_tx_callback_register(local, hostap_ap_tx_cb_auth, ap); + ap->tx_callback_assoc = + hostap_tx_callback_register(local, hostap_ap_tx_cb_assoc, ap); + ap->tx_callback_poll = + hostap_tx_callback_register(local, hostap_ap_tx_cb_poll, ap); + if (ap->tx_callback_auth == 0 || ap->tx_callback_assoc == 0 || + ap->tx_callback_poll == 0) + printk(KERN_WARNING "%s: failed to register TX callback for " + "AP\n", local->dev->name); + + spin_lock_init(&ap->mac_restrictions.lock); + INIT_LIST_HEAD(&ap->mac_restrictions.mac_list); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + ap->initialized = 1; +} + + +void hostap_init_ap_proc(local_info_t *local) +{ + struct ap_data *ap = local->ap; + + ap->proc = local->proc; + if (ap->proc == NULL) + return; + +#ifndef PRISM2_NO_PROCFS_DEBUG + create_proc_read_entry("ap_debug", 0, ap->proc, + ap_debug_proc_read, ap); +#endif /* PRISM2_NO_PROCFS_DEBUG */ + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + create_proc_read_entry("ap_control", 0, ap->proc, + ap_control_proc_read, ap); + create_proc_read_entry("ap", 0, ap->proc, + prism2_ap_proc_read, ap); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + +} + + +void hostap_free_data(struct ap_data *ap) +{ + struct list_head *n, *ptr; + + if (ap == NULL || !ap->initialized) { + printk(KERN_DEBUG "hostap_free_data: ap has not yet been " + "initialized - skip resource freeing\n"); + return; + } + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (ap->crypt) + ap->crypt->deinit(ap->crypt_priv); + ap->crypt = ap->crypt_priv = NULL; +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + list_for_each_safe(ptr, n, &ap->sta_list) { + struct sta_info *sta = list_entry(ptr, struct sta_info, list); + ap_sta_hash_del(ap, sta); + list_del(&sta->list); + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap && sta->local) + hostap_event_expired_sta(sta->local->dev, sta); + ap_free_sta(ap, sta); + } + +#ifndef PRISM2_NO_PROCFS_DEBUG + if (ap->proc != NULL) { + remove_proc_entry("ap_debug", ap->proc); + } +#endif /* PRISM2_NO_PROCFS_DEBUG */ + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (ap->proc != NULL) { + remove_proc_entry("ap", ap->proc); + remove_proc_entry("ap_control", ap->proc); + } + ap_control_flush_macs(&ap->mac_restrictions); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + ap->initialized = 0; +} + + +/* caller should have mutex for AP STA list handling */ +static struct sta_info* ap_get_sta(struct ap_data *ap, u8 *sta) +{ + struct sta_info *s; + + s = ap->sta_hash[STA_HASH(sta)]; + while (s != NULL && memcmp(s->addr, sta, ETH_ALEN) != 0) + s = s->hnext; + return s; +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + +/* Called from timer handler and from scheduled AP queue handlers */ +static void prism2_send_mgmt(struct net_device *dev, + int type, int subtype, char *body, + int body_len, u8 *addr, u16 tx_cb_idx) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hostap_ieee80211_hdr *hdr; + u16 fc; + struct sk_buff *skb; + struct hostap_skb_tx_data *meta; + int hdrlen; + + iface = netdev_priv(dev); + local = iface->local; + dev = local->dev; /* always use master radio device */ + iface = netdev_priv(dev); + + if (!(dev->flags & IFF_UP)) { + PDEBUG(DEBUG_AP, "%s: prism2_send_mgmt - device is not UP - " + "cannot send frame\n", dev->name); + return; + } + + skb = dev_alloc_skb(sizeof(*hdr) + body_len); + if (skb == NULL) { + PDEBUG(DEBUG_AP, "%s: prism2_send_mgmt failed to allocate " + "skb\n", dev->name); + return; + } + + fc = (type << 2) | (subtype << 4); + hdrlen = hostap_80211_get_hdrlen(fc); + hdr = (struct hostap_ieee80211_hdr *) skb_put(skb, hdrlen); + if (body) + memcpy(skb_put(skb, body_len), body, body_len); + + memset(hdr, 0, hdrlen); + + /* FIX: ctrl::ack sending used special HFA384X_TX_CTRL_802_11 + * tx_control instead of using local->tx_control */ + + + memcpy(hdr->addr1, addr, ETH_ALEN); /* DA / RA */ + if (type == WLAN_FC_TYPE_DATA) { + fc |= WLAN_FC_FROMDS; + memcpy(hdr->addr2, dev->dev_addr, ETH_ALEN); /* BSSID */ + memcpy(hdr->addr3, dev->dev_addr, ETH_ALEN); /* SA */ + } else if (type == WLAN_FC_TYPE_CTRL) { + /* control:ACK does not have addr2 or addr3 */ + memset(hdr->addr2, 0, ETH_ALEN); + memset(hdr->addr3, 0, ETH_ALEN); + } else { + memcpy(hdr->addr2, dev->dev_addr, ETH_ALEN); /* SA */ + memcpy(hdr->addr3, dev->dev_addr, ETH_ALEN); /* BSSID */ + } + + hdr->frame_control = cpu_to_le16(fc); + + meta = (struct hostap_skb_tx_data *) skb->cb; + memset(meta, 0, sizeof(*meta)); + meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; + meta->iface = iface; + meta->tx_cb_idx = tx_cb_idx; + + skb->dev = dev; + skb->mac.raw = skb->nh.raw = skb->data; + dev_queue_xmit(skb); +} +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +static int prism2_sta_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + struct sta_info *sta = (struct sta_info *) data; + int i; + + /* FIX: possible race condition.. the STA data could have just expired, + * but proc entry was still here so that the read could have started; + * some locking should be done here.. */ + + if (off != 0) { + *eof = 1; + return 0; + } + + p += sprintf(p, "%s=" MACSTR "\nusers=%d\naid=%d\n" + "flags=0x%04x%s%s%s%s%s%s%s\n" + "capability=0x%02x\nlisten_interval=%d\nsupported_rates=", + sta->ap ? "AP" : "STA", + MAC2STR(sta->addr), atomic_read(&sta->users), sta->aid, + sta->flags, + sta->flags & WLAN_STA_AUTH ? " AUTH" : "", + sta->flags & WLAN_STA_ASSOC ? " ASSOC" : "", + sta->flags & WLAN_STA_PS ? " PS" : "", + sta->flags & WLAN_STA_TIM ? " TIM" : "", + sta->flags & WLAN_STA_PERM ? " PERM" : "", + sta->flags & WLAN_STA_AUTHORIZED ? " AUTHORIZED" : "", + sta->flags & WLAN_STA_PENDING_POLL ? " POLL" : "", + sta->capability, sta->listen_interval); + /* supported_rates: 500 kbit/s units with msb ignored */ + for (i = 0; i < sizeof(sta->supported_rates); i++) + if (sta->supported_rates[i] != 0) + p += sprintf(p, "%d%sMbps ", + (sta->supported_rates[i] & 0x7f) / 2, + sta->supported_rates[i] & 1 ? ".5" : ""); + p += sprintf(p, "\njiffies=%lu\nlast_auth=%lu\nlast_assoc=%lu\n" + "last_rx=%lu\nlast_tx=%lu\nrx_packets=%lu\n" + "tx_packets=%lu\n" + "rx_bytes=%lu\ntx_bytes=%lu\nbuffer_count=%d\n" + "last_rx: silence=%d dBm signal=%d dBm rate=%d%s Mbps\n" + "tx_rate=%d\ntx[1M]=%d\ntx[2M]=%d\ntx[5.5M]=%d\n" + "tx[11M]=%d\n" + "rx[1M]=%d\nrx[2M]=%d\nrx[5.5M]=%d\nrx[11M]=%d\n", + jiffies, sta->last_auth, sta->last_assoc, sta->last_rx, + sta->last_tx, + sta->rx_packets, sta->tx_packets, sta->rx_bytes, + sta->tx_bytes, skb_queue_len(&sta->tx_buf), + sta->last_rx_silence, + sta->last_rx_signal, sta->last_rx_rate / 10, + sta->last_rx_rate % 10 ? ".5" : "", + sta->tx_rate, sta->tx_count[0], sta->tx_count[1], + sta->tx_count[2], sta->tx_count[3], sta->rx_count[0], + sta->rx_count[1], sta->rx_count[2], sta->rx_count[3]); + if (sta->crypt && sta->crypt->ops && sta->crypt->ops->print_stats) + p = sta->crypt->ops->print_stats(p, sta->crypt->priv); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (sta->ap) { + if (sta->u.ap.channel >= 0) + p += sprintf(p, "channel=%d\n", sta->u.ap.channel); + p += sprintf(p, "ssid="); + for (i = 0; i < sta->u.ap.ssid_len; i++) + p += sprintf(p, ((sta->u.ap.ssid[i] >= 32 && + sta->u.ap.ssid[i] < 127) ? + "%c" : "<%02x>"), + sta->u.ap.ssid[i]); + p += sprintf(p, "\n"); + } +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + return (p - page); +} + + +static void handle_add_proc_queue(void *data) +{ + struct ap_data *ap = (struct ap_data *) data; + struct sta_info *sta; + char name[20]; + struct add_sta_proc_data *entry, *prev; + + entry = ap->add_sta_proc_entries; + ap->add_sta_proc_entries = NULL; + + while (entry) { + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, entry->addr); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&ap->sta_table_lock); + + if (sta) { + sprintf(name, MACSTR, MAC2STR(sta->addr)); + sta->proc = create_proc_read_entry( + name, 0, ap->proc, + prism2_sta_proc_read, sta); + + atomic_dec(&sta->users); + } + + prev = entry; + entry = entry->next; + kfree(prev); + } +} + + +static struct sta_info * ap_add_sta(struct ap_data *ap, u8 *addr) +{ + struct sta_info *sta; + + sta = (struct sta_info *) + kmalloc(sizeof(struct sta_info), GFP_ATOMIC); + if (sta == NULL) { + PDEBUG(DEBUG_AP, "AP: kmalloc failed\n"); + return NULL; + } + + /* initialize STA info data */ + memset(sta, 0, sizeof(struct sta_info)); + sta->local = ap->local; + skb_queue_head_init(&sta->tx_buf); + memcpy(sta->addr, addr, ETH_ALEN); + + atomic_inc(&sta->users); + spin_lock_bh(&ap->sta_table_lock); + list_add(&sta->list, &ap->sta_list); + ap->num_sta++; + ap_sta_hash_add(ap, sta); + spin_unlock_bh(&ap->sta_table_lock); + + if (ap->proc) { + struct add_sta_proc_data *entry; + /* schedule a non-interrupt context process to add a procfs + * entry for the STA since procfs code use GFP_KERNEL */ + entry = kmalloc(sizeof(*entry), GFP_ATOMIC); + if (entry) { + memcpy(entry->addr, sta->addr, ETH_ALEN); + entry->next = ap->add_sta_proc_entries; + ap->add_sta_proc_entries = entry; + schedule_work(&ap->add_sta_proc_queue); + } else + printk(KERN_DEBUG "Failed to add STA proc data\n"); + } + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + init_timer(&sta->timer); + sta->timer.expires = jiffies + ap->max_inactivity; + sta->timer.data = (unsigned long) sta; + sta->timer.function = ap_handle_timer; + if (!ap->local->hostapd) + add_timer(&sta->timer); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + return sta; +} + + +static int ap_tx_rate_ok(int rateidx, struct sta_info *sta, + local_info_t *local) +{ + if (rateidx > sta->tx_max_rate || + !(sta->tx_supp_rates & (1 << rateidx))) + return 0; + + if (local->tx_rate_control != 0 && + !(local->tx_rate_control & (1 << rateidx))) + return 0; + + return 1; +} + + +static void prism2_check_tx_rates(struct sta_info *sta) +{ + int i; + + sta->tx_supp_rates = 0; + for (i = 0; i < sizeof(sta->supported_rates); i++) { + if ((sta->supported_rates[i] & 0x7f) == 2) + sta->tx_supp_rates |= WLAN_RATE_1M; + if ((sta->supported_rates[i] & 0x7f) == 4) + sta->tx_supp_rates |= WLAN_RATE_2M; + if ((sta->supported_rates[i] & 0x7f) == 11) + sta->tx_supp_rates |= WLAN_RATE_5M5; + if ((sta->supported_rates[i] & 0x7f) == 22) + sta->tx_supp_rates |= WLAN_RATE_11M; + } + sta->tx_max_rate = sta->tx_rate = sta->tx_rate_idx = 0; + if (sta->tx_supp_rates & WLAN_RATE_1M) { + sta->tx_max_rate = 0; + if (ap_tx_rate_ok(0, sta, sta->local)) { + sta->tx_rate = 10; + sta->tx_rate_idx = 0; + } + } + if (sta->tx_supp_rates & WLAN_RATE_2M) { + sta->tx_max_rate = 1; + if (ap_tx_rate_ok(1, sta, sta->local)) { + sta->tx_rate = 20; + sta->tx_rate_idx = 1; + } + } + if (sta->tx_supp_rates & WLAN_RATE_5M5) { + sta->tx_max_rate = 2; + if (ap_tx_rate_ok(2, sta, sta->local)) { + sta->tx_rate = 55; + sta->tx_rate_idx = 2; + } + } + if (sta->tx_supp_rates & WLAN_RATE_11M) { + sta->tx_max_rate = 3; + if (ap_tx_rate_ok(3, sta, sta->local)) { + sta->tx_rate = 110; + sta->tx_rate_idx = 3; + } + } +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + +static void ap_crypt_init(struct ap_data *ap) +{ + ap->crypt = hostap_get_crypto_ops("WEP"); + + if (ap->crypt) { + if (ap->crypt->init) { + ap->crypt_priv = ap->crypt->init(0); + if (ap->crypt_priv == NULL) + ap->crypt = NULL; + else { + u8 key[WEP_KEY_LEN]; + get_random_bytes(key, WEP_KEY_LEN); + ap->crypt->set_key(key, WEP_KEY_LEN, NULL, + ap->crypt_priv); + } + } + } + + if (ap->crypt == NULL) { + printk(KERN_WARNING "AP could not initialize WEP: load module " + "hostap_crypt_wep.o\n"); + } +} + + +/* Generate challenge data for shared key authentication. IEEE 802.11 specifies + * that WEP algorithm is used for generating challange. This should be unique, + * but otherwise there is not really need for randomness etc. Initialize WEP + * with pseudo random key and then use increasing IV to get unique challenge + * streams. + * + * Called only as a scheduled task for pending AP frames. + */ +static char * ap_auth_make_challenge(struct ap_data *ap) +{ + char *tmpbuf; + struct sk_buff *skb; + + if (ap->crypt == NULL) { + ap_crypt_init(ap); + if (ap->crypt == NULL) + return NULL; + } + + tmpbuf = (char *) kmalloc(WLAN_AUTH_CHALLENGE_LEN, GFP_ATOMIC); + if (tmpbuf == NULL) { + PDEBUG(DEBUG_AP, "AP: kmalloc failed for challenge\n"); + return NULL; + } + + skb = dev_alloc_skb(WLAN_AUTH_CHALLENGE_LEN + + ap->crypt->extra_prefix_len + + ap->crypt->extra_postfix_len); + if (skb == NULL) { + kfree(tmpbuf); + return NULL; + } + + skb_reserve(skb, ap->crypt->extra_prefix_len); + memset(skb_put(skb, WLAN_AUTH_CHALLENGE_LEN), 0, + WLAN_AUTH_CHALLENGE_LEN); + if (ap->crypt->encrypt_mpdu(skb, 0, ap->crypt_priv)) { + dev_kfree_skb(skb); + kfree(tmpbuf); + return NULL; + } + + memcpy(tmpbuf, skb->data + ap->crypt->extra_prefix_len, + WLAN_AUTH_CHALLENGE_LEN); + dev_kfree_skb(skb); + + return tmpbuf; +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_authen(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct net_device *dev = local->dev; + struct hostap_ieee80211_hdr *hdr = + (struct hostap_ieee80211_hdr *) skb->data; + size_t hdrlen; + struct ap_data *ap = local->ap; + char body[8 + WLAN_AUTH_CHALLENGE_LEN], *challenge = NULL; + int len, olen; + u16 auth_alg, auth_transaction, status_code, *pos; + u16 resp = WLAN_STATUS_SUCCESS, fc; + struct sta_info *sta = NULL; + struct prism2_crypt_data *crypt; + char *txt = ""; + + len = skb->len - IEEE80211_MGMT_HDR_LEN; + + fc = le16_to_cpu(hdr->frame_control); + hdrlen = hostap_80211_get_hdrlen(fc); + + if (len < 6) { + PDEBUG(DEBUG_AP, "%s: handle_authen - too short payload " + "(len=%d) from " MACSTR "\n", dev->name, len, + MAC2STR(hdr->addr2)); + return; + } + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&local->ap->sta_table_lock); + + if (sta && sta->crypt) + crypt = sta->crypt; + else { + int idx = 0; + if (skb->len >= hdrlen + 3) + idx = skb->data[hdrlen + 3] >> 6; + crypt = local->crypt[idx]; + } + + pos = (u16 *) (skb->data + IEEE80211_MGMT_HDR_LEN); + auth_alg = __le16_to_cpu(*pos); + pos++; + auth_transaction = __le16_to_cpu(*pos); + pos++; + status_code = __le16_to_cpu(*pos); + pos++; + + if (memcmp(dev->dev_addr, hdr->addr2, ETH_ALEN) == 0 || + ap_control_mac_deny(&ap->mac_restrictions, hdr->addr2)) { + txt = "authentication denied"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + + if (((local->auth_algs & PRISM2_AUTH_OPEN) && + auth_alg == WLAN_AUTH_OPEN) || + ((local->auth_algs & PRISM2_AUTH_SHARED_KEY) && + crypt && auth_alg == WLAN_AUTH_SHARED_KEY)) { + } else { + txt = "unsupported algorithm"; + resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG; + goto fail; + } + + if (len >= 8) { + u8 *u = (u8 *) pos; + if (*u == WLAN_EID_CHALLENGE) { + if (*(u + 1) != WLAN_AUTH_CHALLENGE_LEN) { + txt = "invalid challenge len"; + resp = WLAN_STATUS_CHALLENGE_FAIL; + goto fail; + } + if (len - 8 < WLAN_AUTH_CHALLENGE_LEN) { + txt = "challenge underflow"; + resp = WLAN_STATUS_CHALLENGE_FAIL; + goto fail; + } + challenge = (char *) (u + 2); + } + } + + if (sta && sta->ap) { + if (time_after(jiffies, sta->u.ap.last_beacon + + (10 * sta->listen_interval * HZ) / 1024)) { + PDEBUG(DEBUG_AP, "%s: no beacons received for a while," + " assuming AP " MACSTR " is now STA\n", + dev->name, MAC2STR(sta->addr)); + sta->ap = 0; + sta->flags = 0; + sta->u.sta.challenge = NULL; + } else { + txt = "AP trying to authenticate?"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + } + + if ((auth_alg == WLAN_AUTH_OPEN && auth_transaction == 1) || + (auth_alg == WLAN_AUTH_SHARED_KEY && + (auth_transaction == 1 || + (auth_transaction == 3 && sta != NULL && + sta->u.sta.challenge != NULL)))) { + } else { + txt = "unknown authentication transaction number"; + resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION; + goto fail; + } + + if (sta == NULL) { + txt = "new STA"; + + if (local->ap->num_sta >= MAX_STA_COUNT) { + /* FIX: might try to remove some old STAs first? */ + txt = "no more room for new STAs"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + + sta = ap_add_sta(local->ap, hdr->addr2); + if (sta == NULL) { + txt = "ap_add_sta failed"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + } + + switch (auth_alg) { + case WLAN_AUTH_OPEN: + txt = "authOK"; + /* IEEE 802.11 standard is not completely clear about + * whether STA is considered authenticated after + * authentication OK frame has been send or after it + * has been ACKed. In order to reduce interoperability + * issues, mark the STA authenticated before ACK. */ + sta->flags |= WLAN_STA_AUTH; + break; + + case WLAN_AUTH_SHARED_KEY: + if (auth_transaction == 1) { + if (sta->u.sta.challenge == NULL) { + sta->u.sta.challenge = + ap_auth_make_challenge(local->ap); + if (sta->u.sta.challenge == NULL) { + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + } + } else { + if (sta->u.sta.challenge == NULL || + challenge == NULL || + memcmp(sta->u.sta.challenge, challenge, + WLAN_AUTH_CHALLENGE_LEN) != 0 || + !(fc & WLAN_FC_ISWEP)) { + txt = "challenge response incorrect"; + resp = WLAN_STATUS_CHALLENGE_FAIL; + goto fail; + } + + txt = "challenge OK - authOK"; + /* IEEE 802.11 standard is not completely clear about + * whether STA is considered authenticated after + * authentication OK frame has been send or after it + * has been ACKed. In order to reduce interoperability + * issues, mark the STA authenticated before ACK. */ + sta->flags |= WLAN_STA_AUTH; + kfree(sta->u.sta.challenge); + sta->u.sta.challenge = NULL; + } + break; + } + + fail: + pos = (u16 *) body; + *pos = cpu_to_le16(auth_alg); + pos++; + *pos = cpu_to_le16(auth_transaction + 1); + pos++; + *pos = cpu_to_le16(resp); /* status_code */ + pos++; + olen = 6; + + if (resp == WLAN_STATUS_SUCCESS && sta != NULL && + sta->u.sta.challenge != NULL && + auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 1) { + u8 *tmp = (u8 *) pos; + *tmp++ = WLAN_EID_CHALLENGE; + *tmp++ = WLAN_AUTH_CHALLENGE_LEN; + pos++; + memcpy(pos, sta->u.sta.challenge, WLAN_AUTH_CHALLENGE_LEN); + olen += 2 + WLAN_AUTH_CHALLENGE_LEN; + } + + prism2_send_mgmt(dev, WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_AUTH, + body, olen, hdr->addr2, ap->tx_callback_auth); + + if (sta) { + sta->last_rx = jiffies; + atomic_dec(&sta->users); + } + + if (resp) { + PDEBUG(DEBUG_AP, "%s: " MACSTR " auth (alg=%d trans#=%d " + "stat=%d len=%d fc=%04x) ==> %d (%s)\n", + dev->name, MAC2STR(hdr->addr2), auth_alg, + auth_transaction, status_code, len, fc, resp, txt); + } +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_assoc(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, int reassoc) +{ + struct net_device *dev = local->dev; + struct hostap_ieee80211_hdr *hdr = + (struct hostap_ieee80211_hdr *) skb->data; + char body[12], *p, *lpos; + int len, left; + u16 *pos; + u16 resp = WLAN_STATUS_SUCCESS; + struct sta_info *sta = NULL; + int send_deauth = 0; + char *txt = ""; + u8 prev_ap[ETH_ALEN]; + + left = len = skb->len - IEEE80211_MGMT_HDR_LEN; + + if (len < (reassoc ? 10 : 4)) { + PDEBUG(DEBUG_AP, "%s: handle_assoc - too short payload " + "(len=%d, reassoc=%d) from " MACSTR "\n", + dev->name, len, reassoc, MAC2STR(hdr->addr2)); + return; + } + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) { + spin_unlock_bh(&local->ap->sta_table_lock); + txt = "trying to associate before authentication"; + send_deauth = 1; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + sta = NULL; /* do not decrement sta->users */ + goto fail; + } + atomic_inc(&sta->users); + spin_unlock_bh(&local->ap->sta_table_lock); + + pos = (u16 *) (skb->data + IEEE80211_MGMT_HDR_LEN); + sta->capability = __le16_to_cpu(*pos); + pos++; left -= 2; + sta->listen_interval = __le16_to_cpu(*pos); + pos++; left -= 2; + + if (reassoc) { + memcpy(prev_ap, pos, ETH_ALEN); + pos++; pos++; pos++; left -= 6; + } else + memset(prev_ap, 0, ETH_ALEN); + + if (left >= 2) { + unsigned int ileft; + unsigned char *u = (unsigned char *) pos; + + if (*u == WLAN_EID_SSID) { + u++; left--; + ileft = *u; + u++; left--; + + if (ileft > left || ileft > MAX_SSID_LEN) { + txt = "SSID overflow"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + + if (ileft != strlen(local->essid) || + memcmp(local->essid, u, ileft) != 0) { + txt = "not our SSID"; + resp = WLAN_STATUS_ASSOC_DENIED_UNSPEC; + goto fail; + } + + u += ileft; + left -= ileft; + } + + if (left >= 2 && *u == WLAN_EID_SUPP_RATES) { + u++; left--; + ileft = *u; + u++; left--; + + if (ileft > left || ileft == 0 || + ileft > WLAN_SUPP_RATES_MAX) { + txt = "SUPP_RATES len error"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + + memset(sta->supported_rates, 0, + sizeof(sta->supported_rates)); + memcpy(sta->supported_rates, u, ileft); + prism2_check_tx_rates(sta); + + u += ileft; + left -= ileft; + } + + if (left > 0) { + PDEBUG(DEBUG_AP, "%s: assoc from " MACSTR " with extra" + " data (%d bytes) [", + dev->name, MAC2STR(hdr->addr2), left); + while (left > 0) { + PDEBUG2(DEBUG_AP, "<%02x>", *u); + u++; left--; + } + PDEBUG2(DEBUG_AP, "]\n"); + } + } else { + txt = "frame underflow"; + resp = WLAN_STATUS_UNSPECIFIED_FAILURE; + goto fail; + } + + /* get a unique AID */ + if (sta->aid > 0) + txt = "OK, old AID"; + else { + spin_lock_bh(&local->ap->sta_table_lock); + for (sta->aid = 1; sta->aid <= MAX_AID_TABLE_SIZE; sta->aid++) + if (local->ap->sta_aid[sta->aid - 1] == NULL) + break; + if (sta->aid > MAX_AID_TABLE_SIZE) { + sta->aid = 0; + spin_unlock_bh(&local->ap->sta_table_lock); + resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA; + txt = "no room for more AIDs"; + } else { + local->ap->sta_aid[sta->aid - 1] = sta; + spin_unlock_bh(&local->ap->sta_table_lock); + txt = "OK, new AID"; + } + } + + fail: + pos = (u16 *) body; + + if (send_deauth) { + *pos = __constant_cpu_to_le16( + WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH); + pos++; + } else { + /* FIX: CF-Pollable and CF-PollReq should be set to match the + * values in beacons/probe responses */ + /* FIX: how about privacy and WEP? */ + /* capability */ + *pos = __constant_cpu_to_le16(WLAN_CAPABILITY_ESS); + pos++; + + /* status_code */ + *pos = __cpu_to_le16(resp); + pos++; + + *pos = __cpu_to_le16((sta && sta->aid > 0 ? sta->aid : 0) | + BIT(14) | BIT(15)); /* AID */ + pos++; + + /* Supported rates (Information element) */ + p = (char *) pos; + *p++ = WLAN_EID_SUPP_RATES; + lpos = p; + *p++ = 0; /* len */ + if (local->tx_rate_control & WLAN_RATE_1M) { + *p++ = local->basic_rates & WLAN_RATE_1M ? 0x82 : 0x02; + (*lpos)++; + } + if (local->tx_rate_control & WLAN_RATE_2M) { + *p++ = local->basic_rates & WLAN_RATE_2M ? 0x84 : 0x04; + (*lpos)++; + } + if (local->tx_rate_control & WLAN_RATE_5M5) { + *p++ = local->basic_rates & WLAN_RATE_5M5 ? + 0x8b : 0x0b; + (*lpos)++; + } + if (local->tx_rate_control & WLAN_RATE_11M) { + *p++ = local->basic_rates & WLAN_RATE_11M ? + 0x96 : 0x16; + (*lpos)++; + } + pos = (u16 *) p; + } + + prism2_send_mgmt(dev, WLAN_FC_TYPE_MGMT, + (send_deauth ? WLAN_FC_STYPE_DEAUTH : + (reassoc ? WLAN_FC_STYPE_REASSOC_RESP : + WLAN_FC_STYPE_ASSOC_RESP)), + body, (u8 *) pos - (u8 *) body, + hdr->addr2, + send_deauth ? 0 : local->ap->tx_callback_assoc); + + if (sta) { + if (resp == WLAN_STATUS_SUCCESS) { + sta->last_rx = jiffies; + /* STA will be marked associated from TX callback, if + * AssocResp is ACKed */ + } + atomic_dec(&sta->users); + } + +#if 0 + PDEBUG(DEBUG_AP, "%s: " MACSTR " %sassoc (len=%d prev_ap=" MACSTR + ") => %d(%d) (%s)\n", + dev->name, MAC2STR(hdr->addr2), reassoc ? "re" : "", len, + MAC2STR(prev_ap), resp, send_deauth, txt); +#endif +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_deauth(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct net_device *dev = local->dev; + struct hostap_ieee80211_hdr *hdr = + (struct hostap_ieee80211_hdr *) skb->data; + char *body = (char *) (skb->data + IEEE80211_MGMT_HDR_LEN); + int len; + u16 reason_code, *pos; + struct sta_info *sta = NULL; + + len = skb->len - IEEE80211_MGMT_HDR_LEN; + + if (len < 2) { + printk("handle_deauth - too short payload (len=%d)\n", len); + return; + } + + pos = (u16 *) body; + reason_code = __le16_to_cpu(*pos); + + PDEBUG(DEBUG_AP, "%s: deauthentication: " MACSTR " len=%d, " + "reason_code=%d\n", dev->name, MAC2STR(hdr->addr2), len, + reason_code); + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta != NULL) { + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap) + hostap_event_expired_sta(local->dev, sta); + sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC); + } + spin_unlock_bh(&local->ap->sta_table_lock); + if (sta == NULL) { + printk("%s: deauthentication from " MACSTR ", " + "reason_code=%d, but STA not authenticated\n", dev->name, + MAC2STR(hdr->addr2), reason_code); + } +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_disassoc(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct net_device *dev = local->dev; + struct hostap_ieee80211_hdr *hdr = + (struct hostap_ieee80211_hdr *) skb->data; + char *body = skb->data + IEEE80211_MGMT_HDR_LEN; + int len; + u16 reason_code, *pos; + struct sta_info *sta = NULL; + + len = skb->len - IEEE80211_MGMT_HDR_LEN; + + if (len < 2) { + printk("handle_disassoc - too short payload (len=%d)\n", len); + return; + } + + pos = (u16 *) body; + reason_code = __le16_to_cpu(*pos); + + PDEBUG(DEBUG_AP, "%s: disassociation: " MACSTR " len=%d, " + "reason_code=%d\n", dev->name, MAC2STR(hdr->addr2), len, + reason_code); + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta != NULL) { + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap) + hostap_event_expired_sta(local->dev, sta); + sta->flags &= ~WLAN_STA_ASSOC; + } + spin_unlock_bh(&local->ap->sta_table_lock); + if (sta == NULL) { + printk("%s: disassociation from " MACSTR ", " + "reason_code=%d, but STA not authenticated\n", + dev->name, MAC2STR(hdr->addr2), reason_code); + } +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void ap_handle_data_nullfunc(local_info_t *local, + struct hostap_ieee80211_hdr *hdr) +{ + struct net_device *dev = local->dev; + + /* some STA f/w's seem to require control::ACK frame for + * data::nullfunc, but at least Prism2 station f/w version 0.8.0 does + * not send this.. + * send control::ACK for the data::nullfunc */ + + printk(KERN_DEBUG "Sending control::ACK for data::nullfunc\n"); + prism2_send_mgmt(dev, WLAN_FC_TYPE_CTRL, WLAN_FC_STYPE_ACK, + NULL, 0, hdr->addr2, 0); +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void ap_handle_dropped_data(local_info_t *local, + struct hostap_ieee80211_hdr *hdr) +{ + struct net_device *dev = local->dev; + struct sta_info *sta; + u16 reason; + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&local->ap->sta_table_lock); + + if (sta != NULL && (sta->flags & WLAN_STA_ASSOC)) { + PDEBUG(DEBUG_AP, "ap_handle_dropped_data: STA is now okay?\n"); + atomic_dec(&sta->users); + return; + } + + reason = __constant_cpu_to_le16( + WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); + prism2_send_mgmt(dev, WLAN_FC_TYPE_MGMT, + ((sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) ? + WLAN_FC_STYPE_DEAUTH : WLAN_FC_STYPE_DISASSOC), + (char *) &reason, sizeof(reason), hdr->addr2, 0); + + if (sta) + atomic_dec(&sta->users); +} + +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +/* Called only as a scheduled task for pending AP frames. */ +static void pspoll_send_buffered(local_info_t *local, struct sta_info *sta, + struct sk_buff *skb) +{ + if (!(sta->flags & WLAN_STA_PS)) { + /* Station has moved to non-PS mode, so send all buffered + * frames using normal device queue. */ + dev_queue_xmit(skb); + return; + } + + /* add a flag for hostap_handle_sta_tx() to know that this skb should + * be passed through even though STA is using PS */ + memcpy(skb->cb, AP_SKB_CB_MAGIC, AP_SKB_CB_MAGIC_LEN); + skb->cb[AP_SKB_CB_MAGIC_LEN] = AP_SKB_CB_BUFFERED_FRAME; + if (!skb_queue_empty(&sta->tx_buf)) { + /* indicate to STA that more frames follow */ + skb->cb[AP_SKB_CB_MAGIC_LEN] |= AP_SKB_CB_ADD_MOREDATA; + } + dev_queue_xmit(skb); +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_pspoll(local_info_t *local, + struct hostap_ieee80211_hdr *hdr, + struct hostap_80211_rx_status *rx_stats) +{ + struct net_device *dev = local->dev; + struct sta_info *sta; + u16 aid; + struct sk_buff *skb; + + PDEBUG(DEBUG_PS2, "handle_pspoll: BSSID=" MACSTR ", TA=" MACSTR + " PWRMGT=%d\n", + MAC2STR(hdr->addr1), MAC2STR(hdr->addr2), + !!(le16_to_cpu(hdr->frame_control) & WLAN_FC_PWRMGT)); + + if (memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN)) { + PDEBUG(DEBUG_AP, "handle_pspoll - addr1(BSSID)=" MACSTR + " not own MAC\n", MAC2STR(hdr->addr1)); + return; + } + + aid = __le16_to_cpu(hdr->duration_id); + if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) { + PDEBUG(DEBUG_PS, " PSPOLL and AID[15:14] not set\n"); + return; + } + aid &= ~BIT(15) & ~BIT(14); + if (aid == 0 || aid > MAX_AID_TABLE_SIZE) { + PDEBUG(DEBUG_PS, " invalid aid=%d\n", aid); + return; + } + PDEBUG(DEBUG_PS2, " aid=%d\n", aid); + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&local->ap->sta_table_lock); + + if (sta == NULL) { + PDEBUG(DEBUG_PS, " STA not found\n"); + return; + } + if (sta->aid != aid) { + PDEBUG(DEBUG_PS, " received aid=%i does not match with " + "assoc.aid=%d\n", aid, sta->aid); + return; + } + + /* FIX: todo: + * - add timeout for buffering (clear aid in TIM vector if buffer timed + * out (expiry time must be longer than ListenInterval for + * the corresponding STA; "8802-11: 11.2.1.9 AP aging function" + * - what to do, if buffered, pspolled, and sent frame is not ACKed by + * sta; store buffer for later use and leave TIM aid bit set? use + * TX event to check whether frame was ACKed? + */ + + while ((skb = skb_dequeue(&sta->tx_buf)) != NULL) { + /* send buffered frame .. */ + PDEBUG(DEBUG_PS2, "Sending buffered frame to STA after PS POLL" + " (buffer_count=%d)\n", skb_queue_len(&sta->tx_buf)); + + pspoll_send_buffered(local, sta, skb); + + if (sta->flags & WLAN_STA_PS) { + /* send only one buffered packet per PS Poll */ + /* FIX: should ignore further PS Polls until the + * buffered packet that was just sent is acknowledged + * (Tx or TxExc event) */ + break; + } + } + + if (skb_queue_empty(&sta->tx_buf)) { + /* try to clear aid from TIM */ + if (!(sta->flags & WLAN_STA_TIM)) + PDEBUG(DEBUG_PS2, "Re-unsetting TIM for aid %d\n", + aid); + hostap_set_tim(local, aid, 0); + sta->flags &= ~WLAN_STA_TIM; + } + + atomic_dec(&sta->users); +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + +static void handle_wds_oper_queue(void *data) +{ + local_info_t *local = data; + struct wds_oper_data *entry, *prev; + + spin_lock_bh(&local->lock); + entry = local->ap->wds_oper_entries; + local->ap->wds_oper_entries = NULL; + spin_unlock_bh(&local->lock); + + while (entry) { + PDEBUG(DEBUG_AP, "%s: %s automatic WDS connection " + "to AP " MACSTR "\n", + local->dev->name, + entry->type == WDS_ADD ? "adding" : "removing", + MAC2STR(entry->addr)); + if (entry->type == WDS_ADD) + prism2_wds_add(local, entry->addr, 0); + else if (entry->type == WDS_DEL) + prism2_wds_del(local, entry->addr, 0, 1); + + prev = entry; + entry = entry->next; + kfree(prev); + } +} + + +/* Called only as a scheduled task for pending AP frames. */ +static void handle_beacon(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct hostap_ieee80211_hdr *hdr = + (struct hostap_ieee80211_hdr *) skb->data; + char *body = skb->data + IEEE80211_MGMT_HDR_LEN; + int len, left; + u16 *pos, beacon_int, capability; + char *ssid = NULL; + unsigned char *supp_rates = NULL; + int ssid_len = 0, supp_rates_len = 0; + struct sta_info *sta = NULL; + int new_sta = 0, channel = -1; + + len = skb->len - IEEE80211_MGMT_HDR_LEN; + + if (len < 8 + 2 + 2) { + printk(KERN_DEBUG "handle_beacon - too short payload " + "(len=%d)\n", len); + return; + } + + pos = (u16 *) body; + left = len; + + /* Timestamp (8 octets) */ + pos += 4; left -= 8; + /* Beacon interval (2 octets) */ + beacon_int = __le16_to_cpu(*pos); + pos++; left -= 2; + /* Capability information (2 octets) */ + capability = __le16_to_cpu(*pos); + pos++; left -= 2; + + if (local->ap->ap_policy != AP_OTHER_AP_EVEN_IBSS && + capability & WLAN_CAPABILITY_IBSS) + return; + + if (left >= 2) { + unsigned int ileft; + unsigned char *u = (unsigned char *) pos; + + if (*u == WLAN_EID_SSID) { + u++; left--; + ileft = *u; + u++; left--; + + if (ileft > left || ileft > MAX_SSID_LEN) { + PDEBUG(DEBUG_AP, "SSID: overflow\n"); + return; + } + + if (local->ap->ap_policy == AP_OTHER_AP_SAME_SSID && + (ileft != strlen(local->essid) || + memcmp(local->essid, u, ileft) != 0)) { + /* not our SSID */ + return; + } + + ssid = u; + ssid_len = ileft; + + u += ileft; + left -= ileft; + } + + if (*u == WLAN_EID_SUPP_RATES) { + u++; left--; + ileft = *u; + u++; left--; + + if (ileft > left || ileft == 0 || ileft > 8) { + PDEBUG(DEBUG_AP, " - SUPP_RATES len error\n"); + return; + } + + supp_rates = u; + supp_rates_len = ileft; + + u += ileft; + left -= ileft; + } + + if (*u == WLAN_EID_DS_PARAMS) { + u++; left--; + ileft = *u; + u++; left--; + + if (ileft > left || ileft != 1) { + PDEBUG(DEBUG_AP, " - DS_PARAMS len error\n"); + return; + } + + channel = *u; + + u += ileft; + left -= ileft; + } + } + + spin_lock_bh(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta != NULL) + atomic_inc(&sta->users); + spin_unlock_bh(&local->ap->sta_table_lock); + + if (sta == NULL) { + /* add new AP */ + new_sta = 1; + sta = ap_add_sta(local->ap, hdr->addr2); + if (sta == NULL) { + printk(KERN_INFO "prism2: kmalloc failed for AP " + "data structure\n"); + return; + } + hostap_event_new_sta(local->dev, sta); + + /* mark APs authentication and associated for pseudo ad-hoc + * style communication */ + sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; + + if (local->ap->autom_ap_wds) { + hostap_wds_link_oper(local, sta->addr, WDS_ADD); + } + } + + sta->ap = 1; + if (ssid) { + sta->u.ap.ssid_len = ssid_len; + memcpy(sta->u.ap.ssid, ssid, ssid_len); + sta->u.ap.ssid[ssid_len] = '\0'; + } else { + sta->u.ap.ssid_len = 0; + sta->u.ap.ssid[0] = '\0'; + } + sta->u.ap.channel = channel; + sta->rx_packets++; + sta->rx_bytes += len; + sta->u.ap.last_beacon = sta->last_rx = jiffies; + sta->capability = capability; + sta->listen_interval = beacon_int; + + atomic_dec(&sta->users); + + if (new_sta) { + memset(sta->supported_rates, 0, sizeof(sta->supported_rates)); + memcpy(sta->supported_rates, supp_rates, supp_rates_len); + prism2_check_tx_rates(sta); + } +} + +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +/* Called only as a tasklet. */ +static void handle_ap_item(local_info_t *local, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + struct net_device *dev = local->dev; +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + u16 fc, type, stype; + struct hostap_ieee80211_hdr *hdr; + + /* FIX: should give skb->len to handler functions and check that the + * buffer is long enough */ + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + type = WLAN_FC_GET_TYPE(fc); + stype = WLAN_FC_GET_STYPE(fc); + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (!local->hostapd && type == WLAN_FC_TYPE_DATA) { + PDEBUG(DEBUG_AP, "handle_ap_item - data frame\n"); + + if (!(fc & WLAN_FC_TODS) || (fc & WLAN_FC_FROMDS)) { + if (stype == WLAN_FC_STYPE_NULLFUNC) { + /* no ToDS nullfunc seems to be used to check + * AP association; so send reject message to + * speed up re-association */ + ap_handle_dropped_data(local, hdr); + goto done; + } + PDEBUG(DEBUG_AP, " not ToDS frame (fc=0x%04x)\n", + fc); + goto done; + } + + if (memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN)) { + PDEBUG(DEBUG_AP, "handle_ap_item - addr1(BSSID)=" + MACSTR " not own MAC\n", + MAC2STR(hdr->addr1)); + goto done; + } + + if (local->ap->nullfunc_ack && stype == WLAN_FC_STYPE_NULLFUNC) + ap_handle_data_nullfunc(local, hdr); + else + ap_handle_dropped_data(local, hdr); + goto done; + } + + if (type == WLAN_FC_TYPE_MGMT && stype == WLAN_FC_STYPE_BEACON) { + handle_beacon(local, skb, rx_stats); + goto done; + } +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + if (type == WLAN_FC_TYPE_CTRL && stype == WLAN_FC_STYPE_PSPOLL) { + handle_pspoll(local, hdr, rx_stats); + goto done; + } + + if (local->hostapd) { + PDEBUG(DEBUG_AP, "Unknown frame in AP queue: type=0x%02x " + "subtype=0x%02x\n", type, stype); + goto done; + } + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (type != WLAN_FC_TYPE_MGMT) { + PDEBUG(DEBUG_AP, "handle_ap_item - not a management frame?\n"); + goto done; + } + + if (memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN)) { + PDEBUG(DEBUG_AP, "handle_ap_item - addr1(DA)=" MACSTR + " not own MAC\n", MAC2STR(hdr->addr1)); + goto done; + } + + if (memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN)) { + PDEBUG(DEBUG_AP, "handle_ap_item - addr3(BSSID)=" MACSTR + " not own MAC\n", MAC2STR(hdr->addr3)); + goto done; + } + + switch (stype) { + case WLAN_FC_STYPE_ASSOC_REQ: + handle_assoc(local, skb, rx_stats, 0); + break; + case WLAN_FC_STYPE_ASSOC_RESP: + PDEBUG(DEBUG_AP, "==> ASSOC RESP (ignored)\n"); + break; + case WLAN_FC_STYPE_REASSOC_REQ: + handle_assoc(local, skb, rx_stats, 1); + break; + case WLAN_FC_STYPE_REASSOC_RESP: + PDEBUG(DEBUG_AP, "==> REASSOC RESP (ignored)\n"); + break; + case WLAN_FC_STYPE_ATIM: + PDEBUG(DEBUG_AP, "==> ATIM (ignored)\n"); + break; + case WLAN_FC_STYPE_DISASSOC: + handle_disassoc(local, skb, rx_stats); + break; + case WLAN_FC_STYPE_AUTH: + handle_authen(local, skb, rx_stats); + break; + case WLAN_FC_STYPE_DEAUTH: + handle_deauth(local, skb, rx_stats); + break; + default: + PDEBUG(DEBUG_AP, "Unknown mgmt frame subtype 0x%02x\n", stype); + break; + } +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + done: + dev_kfree_skb(skb); +} + + +/* Called only as a tasklet (software IRQ) */ +void hostap_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 fc; + struct hostap_ieee80211_hdr *hdr; + + iface = netdev_priv(dev); + local = iface->local; + + if (skb->len < 16) + goto drop; + + local->stats.rx_packets++; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + fc = le16_to_cpu(hdr->frame_control); + + if (local->ap->ap_policy == AP_OTHER_AP_SKIP_ALL && + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && + WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) + goto drop; + + skb->protocol = __constant_htons(ETH_P_HOSTAP); + handle_ap_item(local, skb, rx_stats); + return; + + drop: + dev_kfree_skb(skb); +} + + +/* Called only as a tasklet (software IRQ) */ +static void schedule_packet_send(local_info_t *local, struct sta_info *sta) +{ + struct sk_buff *skb; + struct hostap_ieee80211_hdr *hdr; + struct hostap_80211_rx_status rx_stats; + + if (skb_queue_empty(&sta->tx_buf)) + return; + + skb = dev_alloc_skb(16); + if (skb == NULL) { + printk(KERN_DEBUG "%s: schedule_packet_send: skb alloc " + "failed\n", local->dev->name); + return; + } + + hdr = (struct hostap_ieee80211_hdr *) skb_put(skb, 16); + + /* Generate a fake pspoll frame to start packet delivery */ + hdr->frame_control = __constant_cpu_to_le16( + (WLAN_FC_TYPE_CTRL << 2) | (WLAN_FC_STYPE_PSPOLL << 4)); + memcpy(hdr->addr1, local->dev->dev_addr, ETH_ALEN); + memcpy(hdr->addr2, sta->addr, ETH_ALEN); + hdr->duration_id = cpu_to_le16(sta->aid | BIT(15) | BIT(14)); + + PDEBUG(DEBUG_PS2, "%s: Scheduling buffered packet delivery for " + "STA " MACSTR "\n", local->dev->name, MAC2STR(sta->addr)); + + skb->dev = local->dev; + + memset(&rx_stats, 0, sizeof(rx_stats)); + hostap_rx(local->dev, skb, &rx_stats); +} + + +static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[], + struct iw_quality qual[], int buf_size, + int aplist) +{ + struct ap_data *ap = local->ap; + struct list_head *ptr; + int count = 0; + + spin_lock_bh(&ap->sta_table_lock); + + for (ptr = ap->sta_list.next; ptr != NULL && ptr != &ap->sta_list; + ptr = ptr->next) { + struct sta_info *sta = (struct sta_info *) ptr; + + if (aplist && !sta->ap) + continue; + addr[count].sa_family = ARPHRD_ETHER; + memcpy(addr[count].sa_data, sta->addr, ETH_ALEN); + if (sta->last_rx_silence == 0) + qual[count].qual = sta->last_rx_signal < 27 ? + 0 : (sta->last_rx_signal - 27) * 92 / 127; + else + qual[count].qual = sta->last_rx_signal - + sta->last_rx_silence - 35; + qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); + qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); + qual[count].updated = sta->last_rx_updated; + + sta->last_rx_updated = 0; + + count++; + if (count >= buf_size) + break; + } + spin_unlock_bh(&ap->sta_table_lock); + + return count; +} + + +/* Translate our list of Access Points & Stations to a card independant + * format that the Wireless Tools will understand - Jean II */ +static int prism2_ap_translate_scan(struct net_device *dev, char *buffer) +{ + struct hostap_interface *iface; + local_info_t *local; + struct ap_data *ap; + struct list_head *ptr; + struct iw_event iwe; + char *current_ev = buffer; + char *end_buf = buffer + IW_SCAN_MAX_DATA; +#if !defined(PRISM2_NO_KERNEL_IEEE80211_MGMT) + char buf[64]; +#endif + + iface = netdev_priv(dev); + local = iface->local; + ap = local->ap; + + spin_lock_bh(&ap->sta_table_lock); + + for (ptr = ap->sta_list.next; ptr != NULL && ptr != &ap->sta_list; + ptr = ptr->next) { + struct sta_info *sta = (struct sta_info *) ptr; + + /* First entry *MUST* be the AP MAC address */ + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, sta->addr, ETH_ALEN); + iwe.len = IW_EV_ADDR_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_ADDR_LEN); + + /* Use the mode to indicate if it's a station or + * an Access Point */ + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWMODE; + if (sta->ap) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_INFRA; + iwe.len = IW_EV_UINT_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_UINT_LEN); + + /* Some quality */ + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVQUAL; + if (sta->last_rx_silence == 0) + iwe.u.qual.qual = sta->last_rx_signal < 27 ? + 0 : (sta->last_rx_signal - 27) * 92 / 127; + else + iwe.u.qual.qual = sta->last_rx_signal - + sta->last_rx_silence - 35; + iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal); + iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence); + iwe.u.qual.updated = sta->last_rx_updated; + iwe.len = IW_EV_QUAL_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_QUAL_LEN); + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + if (sta->ap) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWESSID; + iwe.u.data.length = sta->u.ap.ssid_len; + iwe.u.data.flags = 1; + current_ev = iwe_stream_add_point(current_ev, end_buf, + &iwe, + sta->u.ap.ssid); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWENCODE; + if (sta->capability & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = + IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + current_ev = iwe_stream_add_point(current_ev, end_buf, + &iwe, + sta->u.ap.ssid + /* 0 byte memcpy */); + + if (sta->u.ap.channel > 0 && + sta->u.ap.channel <= FREQ_COUNT) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = freq_list[sta->u.ap.channel - 1] + * 100000; + iwe.u.freq.e = 1; + current_ev = iwe_stream_add_event( + current_ev, end_buf, &iwe, + IW_EV_FREQ_LEN); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "beacon_interval=%d", + sta->listen_interval); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(current_ev, end_buf, + &iwe, buf); + } +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + sta->last_rx_updated = 0; + + /* To be continued, we should make good use of IWEVCUSTOM */ + } + + spin_unlock_bh(&ap->sta_table_lock); + + return current_ev - buffer; +} + + +static int prism2_hostapd_add_sta(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, param->sta_addr); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&ap->sta_table_lock); + + if (sta == NULL) { + sta = ap_add_sta(ap, param->sta_addr); + if (sta == NULL) + return -1; + } + + if (!(sta->flags & WLAN_STA_ASSOC) && !sta->ap && sta->local) + hostap_event_new_sta(sta->local->dev, sta); + + sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; + sta->last_rx = jiffies; + sta->aid = param->u.add_sta.aid; + sta->capability = param->u.add_sta.capability; + sta->tx_supp_rates = param->u.add_sta.tx_supp_rates; + if (sta->tx_supp_rates & WLAN_RATE_1M) + sta->supported_rates[0] = 2; + if (sta->tx_supp_rates & WLAN_RATE_2M) + sta->supported_rates[1] = 4; + if (sta->tx_supp_rates & WLAN_RATE_5M5) + sta->supported_rates[2] = 11; + if (sta->tx_supp_rates & WLAN_RATE_11M) + sta->supported_rates[3] = 22; + prism2_check_tx_rates(sta); + atomic_dec(&sta->users); + return 0; +} + + +static int prism2_hostapd_remove_sta(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, param->sta_addr); + if (sta) { + ap_sta_hash_del(ap, sta); + list_del(&sta->list); + } + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta) + return -ENOENT; + + if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap && sta->local) + hostap_event_expired_sta(sta->local->dev, sta); + ap_free_sta(ap, sta); + + return 0; +} + + +static int prism2_hostapd_get_info_sta(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, param->sta_addr); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta) + return -ENOENT; + + param->u.get_info_sta.inactive_sec = (jiffies - sta->last_rx) / HZ; + + atomic_dec(&sta->users); + + return 1; +} + + +static int prism2_hostapd_set_flags_sta(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, param->sta_addr); + if (sta) { + sta->flags |= param->u.set_flags_sta.flags_or; + sta->flags &= param->u.set_flags_sta.flags_and; + } + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta) + return -ENOENT; + + return 0; +} + + +static int prism2_hostapd_sta_clear_stats(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + struct sta_info *sta; + int rate; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, param->sta_addr); + if (sta) { + sta->rx_packets = sta->tx_packets = 0; + sta->rx_bytes = sta->tx_bytes = 0; + for (rate = 0; rate < WLAN_RATE_COUNT; rate++) { + sta->tx_count[rate] = 0; + sta->rx_count[rate] = 0; + } + } + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta) + return -ENOENT; + + return 0; +} + + +static int prism2_hostapd(struct ap_data *ap, + struct prism2_hostapd_param *param) +{ + switch (param->cmd) { + case PRISM2_HOSTAPD_FLUSH: + ap_control_kickall(ap); + return 0; + case PRISM2_HOSTAPD_ADD_STA: + return prism2_hostapd_add_sta(ap, param); + case PRISM2_HOSTAPD_REMOVE_STA: + return prism2_hostapd_remove_sta(ap, param); + case PRISM2_HOSTAPD_GET_INFO_STA: + return prism2_hostapd_get_info_sta(ap, param); + case PRISM2_HOSTAPD_SET_FLAGS_STA: + return prism2_hostapd_set_flags_sta(ap, param); + case PRISM2_HOSTAPD_STA_CLEAR_STATS: + return prism2_hostapd_sta_clear_stats(ap, param); + default: + printk(KERN_WARNING "prism2_hostapd: unknown cmd=%d\n", + param->cmd); + return -EOPNOTSUPP; + } +} + + +/* Update station info for host-based TX rate control and return current + * TX rate */ +static int ap_update_sta_tx_rate(struct sta_info *sta, struct net_device *dev) +{ + int ret = sta->tx_rate; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + sta->tx_count[sta->tx_rate_idx]++; + sta->tx_since_last_failure++; + sta->tx_consecutive_exc = 0; + if (sta->tx_since_last_failure >= WLAN_RATE_UPDATE_COUNT && + sta->tx_rate_idx < sta->tx_max_rate) { + /* use next higher rate */ + int old_rate, new_rate; + old_rate = new_rate = sta->tx_rate_idx; + while (new_rate < sta->tx_max_rate) { + new_rate++; + if (ap_tx_rate_ok(new_rate, sta, local)) { + sta->tx_rate_idx = new_rate; + break; + } + } + if (old_rate != sta->tx_rate_idx) { + switch (sta->tx_rate_idx) { + case 0: sta->tx_rate = 10; break; + case 1: sta->tx_rate = 20; break; + case 2: sta->tx_rate = 55; break; + case 3: sta->tx_rate = 110; break; + default: sta->tx_rate = 0; break; + } + PDEBUG(DEBUG_AP, "%s: STA " MACSTR " TX rate raised to" + " %d\n", dev->name, MAC2STR(sta->addr), + sta->tx_rate); + } + sta->tx_since_last_failure = 0; + } + + return ret; +} + + +/* Called only from software IRQ. Called for each TX frame prior possible + * encryption and transmit. */ +ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx) +{ + struct sta_info *sta = NULL; + struct sk_buff *skb = tx->skb; + int set_tim, ret; + struct hostap_ieee80211_hdr *hdr; + struct hostap_skb_tx_data *meta; + + meta = (struct hostap_skb_tx_data *) skb->cb; + ret = AP_TX_CONTINUE; + if (local->ap == NULL || skb->len < 10 || + meta->iface->type == HOSTAP_INTERFACE_STA) + goto out; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + if (hdr->addr1[0] & 0x01) { + /* broadcast/multicast frame - no AP related processing */ + goto out; + } + + /* unicast packet - check whether destination STA is associated */ + spin_lock(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr1); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&local->ap->sta_table_lock); + + if (local->iw_mode == IW_MODE_MASTER && sta == NULL && !meta->wds && + meta->iface->type != HOSTAP_INTERFACE_MASTER && + meta->iface->type != HOSTAP_INTERFACE_AP) { +#if 0 + /* This can happen, e.g., when wlan0 is added to a bridge and + * bridging code does not know which port is the correct target + * for a unicast frame. In this case, the packet is send to all + * ports of the bridge. Since this is a valid scenario, do not + * print out any errors here. */ + if (net_ratelimit()) { + printk(KERN_DEBUG "AP: drop packet to non-associated " + "STA " MACSTR "\n", MAC2STR(hdr->addr1)); + } +#endif + local->ap->tx_drop_nonassoc++; + ret = AP_TX_DROP; + goto out; + } + + if (sta == NULL) + goto out; + + if (!(sta->flags & WLAN_STA_AUTHORIZED)) + ret = AP_TX_CONTINUE_NOT_AUTHORIZED; + + /* Set tx_rate if using host-based TX rate control */ + if (!local->fw_tx_rate_control) + local->ap->last_tx_rate = meta->rate = + ap_update_sta_tx_rate(sta, local->dev); + + if (local->iw_mode != IW_MODE_MASTER) + goto out; + + if (!(sta->flags & WLAN_STA_PS)) + goto out; + + if (memcmp(skb->cb, AP_SKB_CB_MAGIC, AP_SKB_CB_MAGIC_LEN) == 0) { + if (skb->cb[AP_SKB_CB_MAGIC_LEN] & AP_SKB_CB_ADD_MOREDATA) { + /* indicate to STA that more frames follow */ + hdr->frame_control |= + __constant_cpu_to_le16(WLAN_FC_MOREDATA); + } + + if (skb->cb[AP_SKB_CB_MAGIC_LEN] & AP_SKB_CB_BUFFERED_FRAME) { + /* packet was already buffered and now send due to + * PS poll, so do not rebuffer it */ + goto out; + } + } + + if (skb_queue_len(&sta->tx_buf) >= STA_MAX_TX_BUFFER) { + PDEBUG(DEBUG_PS, "%s: No more space in STA (" MACSTR ")'s PS " + "mode buffer\n", local->dev->name, MAC2STR(sta->addr)); + /* Make sure that TIM is set for the station (it might not be + * after AP wlan hw reset). */ + /* FIX: should fix hw reset to restore bits based on STA + * buffer state.. */ + hostap_set_tim(local, sta->aid, 1); + sta->flags |= WLAN_STA_TIM; + ret = AP_TX_DROP; + goto out; + } + + /* STA in PS mode, buffer frame for later delivery */ + set_tim = skb_queue_empty(&sta->tx_buf); + skb_queue_tail(&sta->tx_buf, skb); + /* FIX: could save RX time to skb and expire buffered frames after + * some time if STA does not poll for them */ + + if (set_tim) { + if (sta->flags & WLAN_STA_TIM) + PDEBUG(DEBUG_PS2, "Re-setting TIM for aid %d\n", + sta->aid); + hostap_set_tim(local, sta->aid, 1); + sta->flags |= WLAN_STA_TIM; + } + + ret = AP_TX_BUFFERED; + + out: + if (sta != NULL) { + if (ret == AP_TX_CONTINUE || + ret == AP_TX_CONTINUE_NOT_AUTHORIZED) { + sta->tx_packets++; + sta->tx_bytes += skb->len; + sta->last_tx = jiffies; + } + + if ((ret == AP_TX_CONTINUE || + ret == AP_TX_CONTINUE_NOT_AUTHORIZED) && + sta->crypt && tx->host_encrypt) { + tx->crypt = sta->crypt; + tx->sta_ptr = sta; /* hostap_handle_sta_release() will + * be called to release sta info + * later */ + } else + atomic_dec(&sta->users); + } + + return ret; +} + + +void hostap_handle_sta_release(void *ptr) +{ + struct sta_info *sta = ptr; + atomic_dec(&sta->users); +} + + +/* Called only as a tasklet (software IRQ) */ +void hostap_handle_sta_tx_exc(local_info_t *local, struct sk_buff *skb) +{ + struct sta_info *sta; + struct hostap_ieee80211_hdr *hdr; + struct hostap_skb_tx_data *meta; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + meta = (struct hostap_skb_tx_data *) skb->cb; + + spin_lock(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr1); + if (!sta) { + spin_unlock(&local->ap->sta_table_lock); + PDEBUG(DEBUG_AP, "%s: Could not find STA " MACSTR " for this " + "TX error (@%lu)\n", + local->dev->name, MAC2STR(hdr->addr1), jiffies); + return; + } + + sta->tx_since_last_failure = 0; + sta->tx_consecutive_exc++; + + if (sta->tx_consecutive_exc >= WLAN_RATE_DECREASE_THRESHOLD && + sta->tx_rate_idx > 0 && meta->rate <= sta->tx_rate) { + /* use next lower rate */ + int old, rate; + old = rate = sta->tx_rate_idx; + while (rate > 0) { + rate--; + if (ap_tx_rate_ok(rate, sta, local)) { + sta->tx_rate_idx = rate; + break; + } + } + if (old != sta->tx_rate_idx) { + switch (sta->tx_rate_idx) { + case 0: sta->tx_rate = 10; break; + case 1: sta->tx_rate = 20; break; + case 2: sta->tx_rate = 55; break; + case 3: sta->tx_rate = 110; break; + default: sta->tx_rate = 0; break; + } + PDEBUG(DEBUG_AP, "%s: STA " MACSTR " TX rate lowered " + "to %d\n", local->dev->name, MAC2STR(sta->addr), + sta->tx_rate); + } + sta->tx_consecutive_exc = 0; + } + spin_unlock(&local->ap->sta_table_lock); +} + + +static void hostap_update_sta_ps2(local_info_t *local, struct sta_info *sta, + int pwrmgt, int type, int stype) +{ + if (pwrmgt && !(sta->flags & WLAN_STA_PS)) { + sta->flags |= WLAN_STA_PS; + PDEBUG(DEBUG_PS2, "STA " MACSTR " changed to use PS " + "mode (type=0x%02X, stype=0x%02X)\n", + MAC2STR(sta->addr), type, stype); + } else if (!pwrmgt && (sta->flags & WLAN_STA_PS)) { + sta->flags &= ~WLAN_STA_PS; + PDEBUG(DEBUG_PS2, "STA " MACSTR " changed to not use " + "PS mode (type=0x%02X, stype=0x%02X)\n", + MAC2STR(sta->addr), type, stype); + if (type != WLAN_FC_TYPE_CTRL || stype != WLAN_FC_STYPE_PSPOLL) + schedule_packet_send(local, sta); + } +} + + +/* Called only as a tasklet (software IRQ). Called for each RX frame to update + * STA power saving state. pwrmgt is a flag from 802.11 frame_control field. */ +int hostap_update_sta_ps(local_info_t *local, struct hostap_ieee80211_hdr *hdr) +{ + struct sta_info *sta; + u16 fc; + + spin_lock(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&local->ap->sta_table_lock); + + if (!sta) + return -1; + + fc = le16_to_cpu(hdr->frame_control); + hostap_update_sta_ps2(local, sta, fc & WLAN_FC_PWRMGT, + WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc)); + + atomic_dec(&sta->users); + return 0; +} + + +/* Called only as a tasklet (software IRQ). Called for each RX frame after + * getting RX header and payload from hardware. */ +ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev, + struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, + int wds) +{ + int ret; + struct sta_info *sta; + u16 fc, type, stype; + struct hostap_ieee80211_hdr *hdr; + + if (local->ap == NULL) + return AP_RX_CONTINUE; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + fc = le16_to_cpu(hdr->frame_control); + type = WLAN_FC_GET_TYPE(fc); + stype = WLAN_FC_GET_STYPE(fc); + + spin_lock(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&local->ap->sta_table_lock); + + if (sta && !(sta->flags & WLAN_STA_AUTHORIZED)) + ret = AP_RX_CONTINUE_NOT_AUTHORIZED; + else + ret = AP_RX_CONTINUE; + + + if (fc & WLAN_FC_TODS) { + if (!wds && (sta == NULL || !(sta->flags & WLAN_STA_ASSOC))) { + if (local->hostapd) { + prism2_rx_80211(local->apdev, skb, rx_stats, + PRISM2_RX_NON_ASSOC); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + } else { + printk(KERN_DEBUG "%s: dropped received packet" + " from non-associated STA " MACSTR + " (type=0x%02x, subtype=0x%02x)\n", + dev->name, MAC2STR(hdr->addr2), type, + stype); + hostap_rx(dev, skb, rx_stats); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + } + ret = AP_RX_EXIT; + goto out; + } + } else if (fc & WLAN_FC_FROMDS) { + if (!wds) { + /* FromDS frame - not for us; probably + * broadcast/multicast in another BSS - drop */ + if (memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) { + printk(KERN_DEBUG "Odd.. FromDS packet " + "received with own BSSID\n"); + hostap_dump_rx_80211(dev->name, skb, rx_stats); + } + ret = AP_RX_DROP; + goto out; + } + } else if (stype == WLAN_FC_STYPE_NULLFUNC && sta == NULL && + memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) { + + if (local->hostapd) { + prism2_rx_80211(local->apdev, skb, rx_stats, + PRISM2_RX_NON_ASSOC); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + } else { + /* At least Lucent f/w seems to send data::nullfunc + * frames with no ToDS flag when the current AP returns + * after being unavailable for some time. Speed up + * re-association by informing the station about it not + * being associated. */ + printk(KERN_DEBUG "%s: rejected received nullfunc " + "frame without ToDS from not associated STA " + MACSTR "\n", + dev->name, MAC2STR(hdr->addr2)); + hostap_rx(dev, skb, rx_stats); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + } + ret = AP_RX_EXIT; + goto out; + } else if (stype == WLAN_FC_STYPE_NULLFUNC) { + /* At least Lucent cards seem to send periodic nullfunc + * frames with ToDS. Let these through to update SQ + * stats and PS state. Nullfunc frames do not contain + * any data and they will be dropped below. */ + } else { + /* If BSSID (Addr3) is foreign, this frame is a normal + * broadcast frame from an IBSS network. Drop it silently. + * If BSSID is own, report the dropping of this frame. */ + if (memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) { + printk(KERN_DEBUG "%s: dropped received packet from " + MACSTR " with no ToDS flag (type=0x%02x, " + "subtype=0x%02x)\n", dev->name, + MAC2STR(hdr->addr2), type, stype); + hostap_dump_rx_80211(dev->name, skb, rx_stats); + } + ret = AP_RX_DROP; + goto out; + } + + if (sta) { + hostap_update_sta_ps2(local, sta, fc & WLAN_FC_PWRMGT, + type, stype); + + sta->rx_packets++; + sta->rx_bytes += skb->len; + sta->last_rx = jiffies; + } + + if (local->ap->nullfunc_ack && stype == WLAN_FC_STYPE_NULLFUNC && + fc & WLAN_FC_TODS) { + if (local->hostapd) { + prism2_rx_80211(local->apdev, skb, rx_stats, + PRISM2_RX_NULLFUNC_ACK); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + } else { + /* some STA f/w's seem to require control::ACK frame + * for data::nullfunc, but Prism2 f/w 0.8.0 (at least + * from Compaq) does not send this.. Try to generate + * ACK for these frames from the host driver to make + * power saving work with, e.g., Lucent WaveLAN f/w */ + hostap_rx(dev, skb, rx_stats); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + } + ret = AP_RX_EXIT; + goto out; + } + + out: + if (sta) + atomic_dec(&sta->users); + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +int hostap_handle_sta_crypto(local_info_t *local, + struct hostap_ieee80211_hdr *hdr, + struct prism2_crypt_data **crypt, void **sta_ptr) +{ + struct sta_info *sta; + + spin_lock(&local->ap->sta_table_lock); + sta = ap_get_sta(local->ap, hdr->addr2); + if (sta) + atomic_inc(&sta->users); + spin_unlock(&local->ap->sta_table_lock); + + if (!sta) + return -1; + + if (sta->crypt) { + *crypt = sta->crypt; + *sta_ptr = sta; + /* hostap_handle_sta_release() will be called to release STA + * info */ + } else + atomic_dec(&sta->users); + + return 0; +} + + +/* Called only as a tasklet (software IRQ) */ +int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr) +{ + struct sta_info *sta; + int ret = 0; + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, sta_addr); + if (sta != NULL && (sta->flags & WLAN_STA_ASSOC) && !sta->ap) + ret = 1; + spin_unlock(&ap->sta_table_lock); + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr) +{ + struct sta_info *sta; + int ret = 0; + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, sta_addr); + if (sta != NULL && (sta->flags & WLAN_STA_ASSOC) && !sta->ap && + ((sta->flags & WLAN_STA_AUTHORIZED) || + ap->local->ieee_802_1x == 0)) + ret = 1; + spin_unlock(&ap->sta_table_lock); + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +int hostap_add_sta(struct ap_data *ap, u8 *sta_addr) +{ + struct sta_info *sta; + int ret = 1; + + if (!ap) + return -1; + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, sta_addr); + if (sta) + ret = 0; + spin_unlock(&ap->sta_table_lock); + + if (ret == 1) { + sta = ap_add_sta(ap, sta_addr); + if (!sta) + ret = -1; + sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; + sta->ap = 1; + memset(sta->supported_rates, 0, sizeof(sta->supported_rates)); + /* No way of knowing which rates are supported since we did not + * get supported rates element from beacon/assoc req. Assume + * that remote end supports all 802.11b rates. */ + sta->supported_rates[0] = 0x82; + sta->supported_rates[1] = 0x84; + sta->supported_rates[2] = 0x0b; + sta->supported_rates[3] = 0x16; + sta->tx_supp_rates = WLAN_RATE_1M | WLAN_RATE_2M | + WLAN_RATE_5M5 | WLAN_RATE_11M; + sta->tx_rate = 110; + sta->tx_max_rate = sta->tx_rate_idx = 3; + } + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +int hostap_update_rx_stats(struct ap_data *ap, + struct hostap_ieee80211_hdr *hdr, + struct hostap_80211_rx_status *rx_stats) +{ + struct sta_info *sta; + + if (!ap) + return -1; + + spin_lock(&ap->sta_table_lock); + sta = ap_get_sta(ap, hdr->addr2); + if (sta) { + sta->last_rx_silence = rx_stats->noise; + sta->last_rx_signal = rx_stats->signal; + sta->last_rx_rate = rx_stats->rate; + sta->last_rx_updated = 7; + if (rx_stats->rate == 10) + sta->rx_count[0]++; + else if (rx_stats->rate == 20) + sta->rx_count[1]++; + else if (rx_stats->rate == 55) + sta->rx_count[2]++; + else if (rx_stats->rate == 110) + sta->rx_count[3]++; + } + spin_unlock(&ap->sta_table_lock); + + return sta ? 0 : -1; +} + + +void hostap_update_rates(local_info_t *local) +{ + struct list_head *ptr; + struct ap_data *ap = local->ap; + + if (!ap) + return; + + spin_lock_bh(&ap->sta_table_lock); + for (ptr = ap->sta_list.next; ptr != &ap->sta_list; ptr = ptr->next) { + struct sta_info *sta = (struct sta_info *) ptr; + prism2_check_tx_rates(sta); + } + spin_unlock_bh(&ap->sta_table_lock); +} + + +static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent, + struct prism2_crypt_data ***crypt) +{ + struct sta_info *sta; + + spin_lock_bh(&ap->sta_table_lock); + sta = ap_get_sta(ap, addr); + if (sta) + atomic_inc(&sta->users); + spin_unlock_bh(&ap->sta_table_lock); + + if (!sta && permanent) + sta = ap_add_sta(ap, addr); + + if (!sta) + return NULL; + + if (permanent) + sta->flags |= WLAN_STA_PERM; + + *crypt = &sta->crypt; + + return sta; +} + + +void hostap_add_wds_links(local_info_t *local) +{ + struct ap_data *ap = local->ap; + struct list_head *ptr; + + spin_lock_bh(&ap->sta_table_lock); + list_for_each(ptr, &ap->sta_list) { + struct sta_info *sta = list_entry(ptr, struct sta_info, list); + if (sta->ap) + hostap_wds_link_oper(local, sta->addr, WDS_ADD); + } + spin_unlock_bh(&ap->sta_table_lock); + + schedule_work(&local->ap->wds_oper_queue); +} + + +void hostap_wds_link_oper(local_info_t *local, u8 *addr, wds_oper_type type) +{ + struct wds_oper_data *entry; + + entry = kmalloc(sizeof(*entry), GFP_ATOMIC); + if (!entry) + return; + memcpy(entry->addr, addr, ETH_ALEN); + entry->type = type; + spin_lock_bh(&local->lock); + entry->next = local->ap->wds_oper_entries; + local->ap->wds_oper_entries = entry; + spin_unlock_bh(&local->lock); + + schedule_work(&local->ap->wds_oper_queue); +} + + +EXPORT_SYMBOL(hostap_init_data); +EXPORT_SYMBOL(hostap_init_ap_proc); +EXPORT_SYMBOL(hostap_free_data); +EXPORT_SYMBOL(hostap_check_sta_fw_version); +EXPORT_SYMBOL(hostap_handle_sta_tx); +EXPORT_SYMBOL(hostap_handle_sta_release); +EXPORT_SYMBOL(hostap_handle_sta_tx_exc); +EXPORT_SYMBOL(hostap_update_sta_ps); +EXPORT_SYMBOL(hostap_handle_sta_rx); +EXPORT_SYMBOL(hostap_is_sta_assoc); +EXPORT_SYMBOL(hostap_is_sta_authorized); +EXPORT_SYMBOL(hostap_add_sta); +EXPORT_SYMBOL(hostap_update_rates); +EXPORT_SYMBOL(hostap_add_wds_links); +EXPORT_SYMBOL(hostap_wds_link_oper); +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +EXPORT_SYMBOL(hostap_deauth_all_stas); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ diff --git a/drivers/net/wireless/hostap/hostap_ap.h b/drivers/net/wireless/hostap/hostap_ap.h new file mode 100644 index 0000000..10137f4 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_ap.h @@ -0,0 +1,272 @@ +#ifndef HOSTAP_AP_H +#define HOSTAP_AP_H + +/* AP data structures for STAs */ + +/* maximum number of frames to buffer per STA */ +#define STA_MAX_TX_BUFFER 32 + +/* Flags used in skb->cb[6] to control how the packet is handled in TX path. + * skb->cb[0..5] must contain magic value 'hostap' to indicate that cb[6] is + * used. */ +#define AP_SKB_CB_MAGIC "hostap" +#define AP_SKB_CB_MAGIC_LEN 6 +#define AP_SKB_CB_BUFFERED_FRAME BIT(0) +#define AP_SKB_CB_ADD_MOREDATA BIT(1) + + +/* STA flags */ +#define WLAN_STA_AUTH BIT(0) +#define WLAN_STA_ASSOC BIT(1) +#define WLAN_STA_PS BIT(2) +#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */ +#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */ +#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is + * controlling whether STA is authorized to + * send and receive non-IEEE 802.1X frames + */ +#define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */ + +#define WLAN_RATE_1M BIT(0) +#define WLAN_RATE_2M BIT(1) +#define WLAN_RATE_5M5 BIT(2) +#define WLAN_RATE_11M BIT(3) +#define WLAN_RATE_COUNT 4 + +/* Maximum size of Supported Rates info element. IEEE 802.11 has a limit of 8, + * but some pre-standard IEEE 802.11g products use longer elements. */ +#define WLAN_SUPP_RATES_MAX 32 + +/* Try to increase TX rate after # successfully sent consecutive packets */ +#define WLAN_RATE_UPDATE_COUNT 50 + +/* Decrease TX rate after # consecutive dropped packets */ +#define WLAN_RATE_DECREASE_THRESHOLD 2 + +struct sta_info { + struct list_head list; + struct sta_info *hnext; /* next entry in hash table list */ + atomic_t users; /* number of users (do not remove if > 0) */ + struct proc_dir_entry *proc; + + u8 addr[6]; + u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */ + u32 flags; + u16 capability; + u16 listen_interval; /* or beacon_int for APs */ + u8 supported_rates[WLAN_SUPP_RATES_MAX]; + + unsigned long last_auth; + unsigned long last_assoc; + unsigned long last_rx; + unsigned long last_tx; + unsigned long rx_packets, tx_packets; + unsigned long rx_bytes, tx_bytes; + struct sk_buff_head tx_buf; + /* FIX: timeout buffers with an expiry time somehow derived from + * listen_interval */ + + s8 last_rx_silence; /* Noise in dBm */ + s8 last_rx_signal; /* Signal strength in dBm */ + u8 last_rx_rate; /* TX rate in 0.1 Mbps */ + u8 last_rx_updated; /* IWSPY's struct iw_quality::updated */ + + u8 tx_supp_rates; /* bit field of supported TX rates */ + u8 tx_rate; /* current TX rate (in 0.1 Mbps) */ + u8 tx_rate_idx; /* current TX rate (WLAN_RATE_*) */ + u8 tx_max_rate; /* max TX rate (WLAN_RATE_*) */ + u32 tx_count[WLAN_RATE_COUNT]; /* number of frames sent (per rate) */ + u32 rx_count[WLAN_RATE_COUNT]; /* number of frames received (per rate) + */ + u32 tx_since_last_failure; + u32 tx_consecutive_exc; + + struct prism2_crypt_data *crypt; + + int ap; /* whether this station is an AP */ + + local_info_t *local; + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + union { + struct { + char *challenge; /* shared key authentication + * challenge */ + } sta; + struct { + int ssid_len; + unsigned char ssid[MAX_SSID_LEN + 1]; /* AP's ssid */ + int channel; + unsigned long last_beacon; /* last RX beacon time */ + } ap; + } u; + + struct timer_list timer; + enum { STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH } timeout_next; +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ +}; + + +#define MAX_STA_COUNT 1024 + +/* Maximum number of AIDs to use for STAs; must be 2007 or lower + * (8802.11 limitation) */ +#define MAX_AID_TABLE_SIZE 128 + +#define STA_HASH_SIZE 256 +#define STA_HASH(sta) (sta[5]) + + +/* Default value for maximum station inactivity. After AP_MAX_INACTIVITY_SEC + * has passed since last received frame from the station, a nullfunc data + * frame is sent to the station. If this frame is not acknowledged and no other + * frames have been received, the station will be disassociated after + * AP_DISASSOC_DELAY. Similarily, a the station will be deauthenticated after + * AP_DEAUTH_DELAY. AP_TIMEOUT_RESOLUTION is the resolution that is used with + * max inactivity timer. */ +#define AP_MAX_INACTIVITY_SEC (5 * 60) +#define AP_DISASSOC_DELAY (HZ) +#define AP_DEAUTH_DELAY (HZ) + +/* ap_policy: whether to accept frames to/from other APs/IBSS */ +typedef enum { + AP_OTHER_AP_SKIP_ALL = 0, + AP_OTHER_AP_SAME_SSID = 1, + AP_OTHER_AP_ALL = 2, + AP_OTHER_AP_EVEN_IBSS = 3 +} ap_policy_enum; + +#define PRISM2_AUTH_OPEN BIT(0) +#define PRISM2_AUTH_SHARED_KEY BIT(1) + + +/* MAC address-based restrictions */ +struct mac_entry { + struct list_head list; + u8 addr[6]; +}; + +struct mac_restrictions { + enum { MAC_POLICY_OPEN = 0, MAC_POLICY_ALLOW, MAC_POLICY_DENY } policy; + unsigned int entries; + struct list_head mac_list; + spinlock_t lock; +}; + + +struct add_sta_proc_data { + u8 addr[ETH_ALEN]; + struct add_sta_proc_data *next; +}; + + +typedef enum { WDS_ADD, WDS_DEL } wds_oper_type; +struct wds_oper_data { + wds_oper_type type; + u8 addr[ETH_ALEN]; + struct wds_oper_data *next; +}; + + +struct ap_data { + int initialized; /* whether ap_data has been initialized */ + local_info_t *local; + int bridge_packets; /* send packet to associated STAs directly to the + * wireless media instead of higher layers in the + * kernel */ + unsigned int bridged_unicast; /* number of unicast frames bridged on + * wireless media */ + unsigned int bridged_multicast; /* number of non-unicast frames + * bridged on wireless media */ + unsigned int tx_drop_nonassoc; /* number of unicast TX packets dropped + * because they were to an address that + * was not associated */ + int nullfunc_ack; /* use workaround for nullfunc frame ACKs */ + + spinlock_t sta_table_lock; + int num_sta; /* number of entries in sta_list */ + struct list_head sta_list; /* STA info list head */ + struct sta_info *sta_hash[STA_HASH_SIZE]; + + struct proc_dir_entry *proc; + + ap_policy_enum ap_policy; + unsigned int max_inactivity; + int autom_ap_wds; + + struct mac_restrictions mac_restrictions; /* MAC-based auth */ + int last_tx_rate; + + struct work_struct add_sta_proc_queue; + struct add_sta_proc_data *add_sta_proc_entries; + + struct work_struct wds_oper_queue; + struct wds_oper_data *wds_oper_entries; + + u16 tx_callback_idx; + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + /* pointers to STA info; based on allocated AID or NULL if AID free + * AID is in the range 1-2007, so sta_aid[0] corresponders to AID 1 + * and so on + */ + struct sta_info *sta_aid[MAX_AID_TABLE_SIZE]; + + u16 tx_callback_auth, tx_callback_assoc, tx_callback_poll; + + /* WEP operations for generating challenges to be used with shared key + * authentication */ + struct hostap_crypto_ops *crypt; + void *crypt_priv; +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ +}; + + +void hostap_rx(struct net_device *dev, struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats); +void hostap_init_data(local_info_t *local); +void hostap_init_ap_proc(local_info_t *local); +void hostap_free_data(struct ap_data *ap); +void hostap_check_sta_fw_version(struct ap_data *ap, int sta_fw_ver); + +typedef enum { + AP_TX_CONTINUE, AP_TX_DROP, AP_TX_RETRY, AP_TX_BUFFERED, + AP_TX_CONTINUE_NOT_AUTHORIZED +} ap_tx_ret; +struct hostap_tx_data { + struct sk_buff *skb; + int host_encrypt; + struct prism2_crypt_data *crypt; + void *sta_ptr; +}; +ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx); +void hostap_handle_sta_release(void *ptr); +void hostap_handle_sta_tx_exc(local_info_t *local, struct sk_buff *skb); +int hostap_update_sta_ps(local_info_t *local, + struct hostap_ieee80211_hdr *hdr); +typedef enum { + AP_RX_CONTINUE, AP_RX_DROP, AP_RX_EXIT, AP_RX_CONTINUE_NOT_AUTHORIZED +} ap_rx_ret; +ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev, + struct sk_buff *skb, + struct hostap_80211_rx_status *rx_stats, + int wds); +int hostap_handle_sta_crypto(local_info_t *local, + struct hostap_ieee80211_hdr *hdr, + struct prism2_crypt_data **crypt, void **sta_ptr); +int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr); +int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr); +int hostap_add_sta(struct ap_data *ap, u8 *sta_addr); +int hostap_update_rx_stats(struct ap_data *ap, + struct hostap_ieee80211_hdr *hdr, + struct hostap_80211_rx_status *rx_stats); +void hostap_update_rates(local_info_t *local); +void hostap_add_wds_links(local_info_t *local); +void hostap_wds_link_oper(local_info_t *local, u8 *addr, wds_oper_type type); + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +void hostap_deauth_all_stas(struct net_device *dev, struct ap_data *ap, + int resend); +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + +#endif /* HOSTAP_AP_H */ diff --git a/drivers/net/wireless/hostap/hostap_common.h b/drivers/net/wireless/hostap/hostap_common.h new file mode 100644 index 0000000..1a9610a --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_common.h @@ -0,0 +1,557 @@ +#ifndef HOSTAP_COMMON_H +#define HOSTAP_COMMON_H + +#define BIT(x) (1 << (x)) + +#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5] +#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x" + + +#ifndef ETH_P_PAE +#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ +#endif /* ETH_P_PAE */ + +#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */ + + + +/* IEEE 802.11 defines */ + +#define WLAN_FC_PVER (BIT(1) | BIT(0)) +#define WLAN_FC_TODS BIT(8) +#define WLAN_FC_FROMDS BIT(9) +#define WLAN_FC_MOREFRAG BIT(10) +#define WLAN_FC_RETRY BIT(11) +#define WLAN_FC_PWRMGT BIT(12) +#define WLAN_FC_MOREDATA BIT(13) +#define WLAN_FC_ISWEP BIT(14) +#define WLAN_FC_ORDER BIT(15) + +#define WLAN_FC_GET_TYPE(fc) (((fc) & (BIT(3) | BIT(2))) >> 2) +#define WLAN_FC_GET_STYPE(fc) \ + (((fc) & (BIT(7) | BIT(6) | BIT(5) | BIT(4))) >> 4) + +#define WLAN_GET_SEQ_FRAG(seq) ((seq) & (BIT(3) | BIT(2) | BIT(1) | BIT(0))) +#define WLAN_GET_SEQ_SEQ(seq) \ + (((seq) & (~(BIT(3) | BIT(2) | BIT(1) | BIT(0)))) >> 4) + +#define WLAN_FC_TYPE_MGMT 0 +#define WLAN_FC_TYPE_CTRL 1 +#define WLAN_FC_TYPE_DATA 2 + +/* management */ +#define WLAN_FC_STYPE_ASSOC_REQ 0 +#define WLAN_FC_STYPE_ASSOC_RESP 1 +#define WLAN_FC_STYPE_REASSOC_REQ 2 +#define WLAN_FC_STYPE_REASSOC_RESP 3 +#define WLAN_FC_STYPE_PROBE_REQ 4 +#define WLAN_FC_STYPE_PROBE_RESP 5 +#define WLAN_FC_STYPE_BEACON 8 +#define WLAN_FC_STYPE_ATIM 9 +#define WLAN_FC_STYPE_DISASSOC 10 +#define WLAN_FC_STYPE_AUTH 11 +#define WLAN_FC_STYPE_DEAUTH 12 + +/* control */ +#define WLAN_FC_STYPE_PSPOLL 10 +#define WLAN_FC_STYPE_RTS 11 +#define WLAN_FC_STYPE_CTS 12 +#define WLAN_FC_STYPE_ACK 13 +#define WLAN_FC_STYPE_CFEND 14 +#define WLAN_FC_STYPE_CFENDACK 15 + +/* data */ +#define WLAN_FC_STYPE_DATA 0 +#define WLAN_FC_STYPE_DATA_CFACK 1 +#define WLAN_FC_STYPE_DATA_CFPOLL 2 +#define WLAN_FC_STYPE_DATA_CFACKPOLL 3 +#define WLAN_FC_STYPE_NULLFUNC 4 +#define WLAN_FC_STYPE_CFACK 5 +#define WLAN_FC_STYPE_CFPOLL 6 +#define WLAN_FC_STYPE_CFACKPOLL 7 + +/* Authentication algorithms */ +#define WLAN_AUTH_OPEN 0 +#define WLAN_AUTH_SHARED_KEY 1 + +#define WLAN_AUTH_CHALLENGE_LEN 128 + +#define WLAN_CAPABILITY_ESS BIT(0) +#define WLAN_CAPABILITY_IBSS BIT(1) +#define WLAN_CAPABILITY_CF_POLLABLE BIT(2) +#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3) +#define WLAN_CAPABILITY_PRIVACY BIT(4) + +/* Status codes */ +#define WLAN_STATUS_SUCCESS 0 +#define WLAN_STATUS_UNSPECIFIED_FAILURE 1 +#define WLAN_STATUS_CAPS_UNSUPPORTED 10 +#define WLAN_STATUS_REASSOC_NO_ASSOC 11 +#define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12 +#define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13 +#define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14 +#define WLAN_STATUS_CHALLENGE_FAIL 15 +#define WLAN_STATUS_AUTH_TIMEOUT 16 +#define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17 +#define WLAN_STATUS_ASSOC_DENIED_RATES 18 +/* 802.11b */ +#define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19 +#define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20 +#define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21 +/* IEEE 802.11i */ +#define WLAN_STATUS_INVALID_IE 40 +#define WLAN_STATUS_GROUP_CIPHER_NOT_VALID 41 +#define WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID 42 +#define WLAN_STATUS_AKMP_NOT_VALID 43 +#define WLAN_STATUS_UNSUPPORTED_RSN_IE_VERSION 44 +#define WLAN_STATUS_INVALID_RSN_IE_CAPAB 45 +#define WLAN_STATUS_CIPHER_REJECTED_PER_POLICY 46 + +/* Reason codes */ +#define WLAN_REASON_UNSPECIFIED 1 +#define WLAN_REASON_PREV_AUTH_NOT_VALID 2 +#define WLAN_REASON_DEAUTH_LEAVING 3 +#define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4 +#define WLAN_REASON_DISASSOC_AP_BUSY 5 +#define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6 +#define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7 +#define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8 +#define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9 +/* IEEE 802.11i */ +#define WLAN_REASON_INVALID_IE 13 +#define WLAN_REASON_MICHAEL_MIC_FAILURE 14 +#define WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT 15 +#define WLAN_REASON_GROUP_KEY_UPDATE_TIMEOUT 16 +#define WLAN_REASON_IE_IN_4WAY_DIFFERS 17 +#define WLAN_REASON_GROUP_CIPHER_NOT_VALID 18 +#define WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID 19 +#define WLAN_REASON_AKMP_NOT_VALID 20 +#define WLAN_REASON_UNSUPPORTED_RSN_IE_VERSION 21 +#define WLAN_REASON_INVALID_RSN_IE_CAPAB 22 +#define WLAN_REASON_IEEE_802_1X_AUTH_FAILED 23 +#define WLAN_REASON_CIPHER_SUITE_REJECTED 24 + + +/* Information Element IDs */ +#define WLAN_EID_SSID 0 +#define WLAN_EID_SUPP_RATES 1 +#define WLAN_EID_FH_PARAMS 2 +#define WLAN_EID_DS_PARAMS 3 +#define WLAN_EID_CF_PARAMS 4 +#define WLAN_EID_TIM 5 +#define WLAN_EID_IBSS_PARAMS 6 +#define WLAN_EID_CHALLENGE 16 +#define WLAN_EID_RSN 48 +#define WLAN_EID_GENERIC 221 + + +/* HFA384X Configuration RIDs */ +#define HFA384X_RID_CNFPORTTYPE 0xFC00 +#define HFA384X_RID_CNFOWNMACADDR 0xFC01 +#define HFA384X_RID_CNFDESIREDSSID 0xFC02 +#define HFA384X_RID_CNFOWNCHANNEL 0xFC03 +#define HFA384X_RID_CNFOWNSSID 0xFC04 +#define HFA384X_RID_CNFOWNATIMWINDOW 0xFC05 +#define HFA384X_RID_CNFSYSTEMSCALE 0xFC06 +#define HFA384X_RID_CNFMAXDATALEN 0xFC07 +#define HFA384X_RID_CNFWDSADDRESS 0xFC08 +#define HFA384X_RID_CNFPMENABLED 0xFC09 +#define HFA384X_RID_CNFPMEPS 0xFC0A +#define HFA384X_RID_CNFMULTICASTRECEIVE 0xFC0B +#define HFA384X_RID_CNFMAXSLEEPDURATION 0xFC0C +#define HFA384X_RID_CNFPMHOLDOVERDURATION 0xFC0D +#define HFA384X_RID_CNFOWNNAME 0xFC0E +#define HFA384X_RID_CNFOWNDTIMPERIOD 0xFC10 +#define HFA384X_RID_CNFWDSADDRESS1 0xFC11 /* AP f/w only */ +#define HFA384X_RID_CNFWDSADDRESS2 0xFC12 /* AP f/w only */ +#define HFA384X_RID_CNFWDSADDRESS3 0xFC13 /* AP f/w only */ +#define HFA384X_RID_CNFWDSADDRESS4 0xFC14 /* AP f/w only */ +#define HFA384X_RID_CNFWDSADDRESS5 0xFC15 /* AP f/w only */ +#define HFA384X_RID_CNFWDSADDRESS6 0xFC16 /* AP f/w only */ +#define HFA384X_RID_CNFMULTICASTPMBUFFERING 0xFC17 /* AP f/w only */ +#define HFA384X_RID_UNKNOWN1 0xFC20 +#define HFA384X_RID_UNKNOWN2 0xFC21 +#define HFA384X_RID_CNFWEPDEFAULTKEYID 0xFC23 +#define HFA384X_RID_CNFDEFAULTKEY0 0xFC24 +#define HFA384X_RID_CNFDEFAULTKEY1 0xFC25 +#define HFA384X_RID_CNFDEFAULTKEY2 0xFC26 +#define HFA384X_RID_CNFDEFAULTKEY3 0xFC27 +#define HFA384X_RID_CNFWEPFLAGS 0xFC28 +#define HFA384X_RID_CNFWEPKEYMAPPINGTABLE 0xFC29 +#define HFA384X_RID_CNFAUTHENTICATION 0xFC2A +#define HFA384X_RID_CNFMAXASSOCSTA 0xFC2B /* AP f/w only */ +#define HFA384X_RID_CNFTXCONTROL 0xFC2C +#define HFA384X_RID_CNFROAMINGMODE 0xFC2D +#define HFA384X_RID_CNFHOSTAUTHENTICATION 0xFC2E /* AP f/w only */ +#define HFA384X_RID_CNFRCVCRCERROR 0xFC30 +#define HFA384X_RID_CNFMMLIFE 0xFC31 +#define HFA384X_RID_CNFALTRETRYCOUNT 0xFC32 +#define HFA384X_RID_CNFBEACONINT 0xFC33 +#define HFA384X_RID_CNFAPPCFINFO 0xFC34 /* AP f/w only */ +#define HFA384X_RID_CNFSTAPCFINFO 0xFC35 +#define HFA384X_RID_CNFPRIORITYQUSAGE 0xFC37 +#define HFA384X_RID_CNFTIMCTRL 0xFC40 +#define HFA384X_RID_UNKNOWN3 0xFC41 /* added in STA f/w 0.7.x */ +#define HFA384X_RID_CNFTHIRTY2TALLY 0xFC42 /* added in STA f/w 0.8.0 */ +#define HFA384X_RID_CNFENHSECURITY 0xFC43 /* AP f/w or STA f/w >= 1.6.3 */ +#define HFA384X_RID_CNFDBMADJUST 0xFC46 /* added in STA f/w 1.3.1 */ +#define HFA384X_RID_GENERICELEMENT 0xFC48 /* added in STA f/w 1.7.0; + * write only */ +#define HFA384X_RID_PROPAGATIONDELAY 0xFC49 /* added in STA f/w 1.7.6 */ +#define HFA384X_RID_GROUPADDRESSES 0xFC80 +#define HFA384X_RID_CREATEIBSS 0xFC81 +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD 0xFC82 +#define HFA384X_RID_RTSTHRESHOLD 0xFC83 +#define HFA384X_RID_TXRATECONTROL 0xFC84 +#define HFA384X_RID_PROMISCUOUSMODE 0xFC85 +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD0 0xFC90 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD1 0xFC91 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD2 0xFC92 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD3 0xFC93 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD4 0xFC94 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD5 0xFC95 /* AP f/w only */ +#define HFA384X_RID_FRAGMENTATIONTHRESHOLD6 0xFC96 /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD0 0xFC97 /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD1 0xFC98 /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD2 0xFC99 /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD3 0xFC9A /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD4 0xFC9B /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD5 0xFC9C /* AP f/w only */ +#define HFA384X_RID_RTSTHRESHOLD6 0xFC9D /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL0 0xFC9E /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL1 0xFC9F /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL2 0xFCA0 /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL3 0xFCA1 /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL4 0xFCA2 /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL5 0xFCA3 /* AP f/w only */ +#define HFA384X_RID_TXRATECONTROL6 0xFCA4 /* AP f/w only */ +#define HFA384X_RID_CNFSHORTPREAMBLE 0xFCB0 +#define HFA384X_RID_CNFEXCLUDELONGPREAMBLE 0xFCB1 +#define HFA384X_RID_CNFAUTHENTICATIONRSPTO 0xFCB2 +#define HFA384X_RID_CNFBASICRATES 0xFCB3 +#define HFA384X_RID_CNFSUPPORTEDRATES 0xFCB4 +#define HFA384X_RID_CNFFALLBACKCTRL 0xFCB5 /* added in STA f/w 1.3.1 */ +#define HFA384X_RID_WEPKEYDISABLE 0xFCB6 /* added in STA f/w 1.3.1 */ +#define HFA384X_RID_WEPKEYMAPINDEX 0xFCB7 /* ? */ +#define HFA384X_RID_BROADCASTKEYID 0xFCB8 /* ? */ +#define HFA384X_RID_ENTSECFLAGEYID 0xFCB9 /* ? */ +#define HFA384X_RID_CNFPASSIVESCANCTRL 0xFCBA /* added in STA f/w 1.5.0 */ +#define HFA384X_RID_SSNHANDLINGMODE 0xFCBB /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_MDCCONTROL 0xFCBC /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_MDCCOUNTRY 0xFCBD /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_TXPOWERMAX 0xFCBE /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_CNFLFOENABLED 0xFCBF /* added in STA f/w 1.6.3 */ +#define HFA384X_RID_CAPINFO 0xFCC0 /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_LISTENINTERVAL 0xFCC1 /* added in STA f/w 1.7.0 */ +#define HFA384X_RID_SW_ANT_DIV 0xFCC2 /* added in STA f/w 1.7.0; Prism3 */ +#define HFA384X_RID_LED_CTRL 0xFCC4 /* added in STA f/w 1.7.6 */ +#define HFA384X_RID_HFODELAY 0xFCC5 /* added in STA f/w 1.7.6 */ +#define HFA384X_RID_DISALLOWEDBSSID 0xFCC6 /* added in STA f/w 1.8.0 */ +#define HFA384X_RID_TICKTIME 0xFCE0 +#define HFA384X_RID_SCANREQUEST 0xFCE1 +#define HFA384X_RID_JOINREQUEST 0xFCE2 +#define HFA384X_RID_AUTHENTICATESTATION 0xFCE3 /* AP f/w only */ +#define HFA384X_RID_CHANNELINFOREQUEST 0xFCE4 /* AP f/w only */ +#define HFA384X_RID_HOSTSCAN 0xFCE5 /* added in STA f/w 1.3.1 */ + +/* HFA384X Information RIDs */ +#define HFA384X_RID_MAXLOADTIME 0xFD00 +#define HFA384X_RID_DOWNLOADBUFFER 0xFD01 +#define HFA384X_RID_PRIID 0xFD02 +#define HFA384X_RID_PRISUPRANGE 0xFD03 +#define HFA384X_RID_CFIACTRANGES 0xFD04 +#define HFA384X_RID_NICSERNUM 0xFD0A +#define HFA384X_RID_NICID 0xFD0B +#define HFA384X_RID_MFISUPRANGE 0xFD0C +#define HFA384X_RID_CFISUPRANGE 0xFD0D +#define HFA384X_RID_CHANNELLIST 0xFD10 +#define HFA384X_RID_REGULATORYDOMAINS 0xFD11 +#define HFA384X_RID_TEMPTYPE 0xFD12 +#define HFA384X_RID_CIS 0xFD13 +#define HFA384X_RID_STAID 0xFD20 +#define HFA384X_RID_STASUPRANGE 0xFD21 +#define HFA384X_RID_MFIACTRANGES 0xFD22 +#define HFA384X_RID_CFIACTRANGES2 0xFD23 +#define HFA384X_RID_PRODUCTNAME 0xFD24 /* added in STA f/w 1.3.1; + * only Prism2.5(?) */ +#define HFA384X_RID_PORTSTATUS 0xFD40 +#define HFA384X_RID_CURRENTSSID 0xFD41 +#define HFA384X_RID_CURRENTBSSID 0xFD42 +#define HFA384X_RID_COMMSQUALITY 0xFD43 +#define HFA384X_RID_CURRENTTXRATE 0xFD44 +#define HFA384X_RID_CURRENTBEACONINTERVAL 0xFD45 +#define HFA384X_RID_CURRENTSCALETHRESHOLDS 0xFD46 +#define HFA384X_RID_PROTOCOLRSPTIME 0xFD47 +#define HFA384X_RID_SHORTRETRYLIMIT 0xFD48 +#define HFA384X_RID_LONGRETRYLIMIT 0xFD49 +#define HFA384X_RID_MAXTRANSMITLIFETIME 0xFD4A +#define HFA384X_RID_MAXRECEIVELIFETIME 0xFD4B +#define HFA384X_RID_CFPOLLABLE 0xFD4C +#define HFA384X_RID_AUTHENTICATIONALGORITHMS 0xFD4D +#define HFA384X_RID_PRIVACYOPTIONIMPLEMENTED 0xFD4F +#define HFA384X_RID_DBMCOMMSQUALITY 0xFD51 /* added in STA f/w 1.3.1 */ +#define HFA384X_RID_CURRENTTXRATE1 0xFD80 /* AP f/w only */ +#define HFA384X_RID_CURRENTTXRATE2 0xFD81 /* AP f/w only */ +#define HFA384X_RID_CURRENTTXRATE3 0xFD82 /* AP f/w only */ +#define HFA384X_RID_CURRENTTXRATE4 0xFD83 /* AP f/w only */ +#define HFA384X_RID_CURRENTTXRATE5 0xFD84 /* AP f/w only */ +#define HFA384X_RID_CURRENTTXRATE6 0xFD85 /* AP f/w only */ +#define HFA384X_RID_OWNMACADDR 0xFD86 /* AP f/w only */ +#define HFA384X_RID_SCANRESULTSTABLE 0xFD88 /* added in STA f/w 0.8.3 */ +#define HFA384X_RID_HOSTSCANRESULTS 0xFD89 /* added in STA f/w 1.3.1 */ +#define HFA384X_RID_AUTHENTICATIONUSED 0xFD8A /* added in STA f/w 1.3.4 */ +#define HFA384X_RID_CNFFAASWITCHCTRL 0xFD8B /* added in STA f/w 1.6.3 */ +#define HFA384X_RID_ASSOCIATIONFAILURE 0xFD8D /* added in STA f/w 1.8.0 */ +#define HFA384X_RID_PHYTYPE 0xFDC0 +#define HFA384X_RID_CURRENTCHANNEL 0xFDC1 +#define HFA384X_RID_CURRENTPOWERSTATE 0xFDC2 +#define HFA384X_RID_CCAMODE 0xFDC3 +#define HFA384X_RID_SUPPORTEDDATARATES 0xFDC6 +#define HFA384X_RID_LFO_VOLT_REG_TEST_RES 0xFDC7 /* added in STA f/w 1.7.1 */ +#define HFA384X_RID_BUILDSEQ 0xFFFE +#define HFA384X_RID_FWID 0xFFFF + + +struct hfa384x_comp_ident +{ + u16 id; + u16 variant; + u16 major; + u16 minor; +} __attribute__ ((packed)); + +#define HFA384X_COMP_ID_PRI 0x15 +#define HFA384X_COMP_ID_STA 0x1f +#define HFA384X_COMP_ID_FW_AP 0x14b + +struct hfa384x_sup_range +{ + u16 role; + u16 id; + u16 variant; + u16 bottom; + u16 top; +} __attribute__ ((packed)); + + +struct hfa384x_build_id +{ + u16 pri_seq; + u16 sec_seq; +} __attribute__ ((packed)); + +/* FD01 - Download Buffer */ +struct hfa384x_rid_download_buffer +{ + u16 page; + u16 offset; + u16 length; +} __attribute__ ((packed)); + +/* BSS connection quality (RID FD43 range, RID FD51 dBm-normalized) */ +struct hfa384x_comms_quality { + u16 comm_qual; /* 0 .. 92 */ + u16 signal_level; /* 27 .. 154 */ + u16 noise_level; /* 27 .. 154 */ +} __attribute__ ((packed)); + + +/* netdevice private ioctls (used, e.g., with iwpriv from user space) */ + +/* New wireless extensions API - SET/GET convention (even ioctl numbers are + * root only) + */ +#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0) +#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1) +#define PRISM2_IOCTL_WRITEMIF (SIOCIWFIRSTPRIV + 2) +#define PRISM2_IOCTL_READMIF (SIOCIWFIRSTPRIV + 3) +#define PRISM2_IOCTL_MONITOR (SIOCIWFIRSTPRIV + 4) +#define PRISM2_IOCTL_RESET (SIOCIWFIRSTPRIV + 6) +#define PRISM2_IOCTL_INQUIRE (SIOCIWFIRSTPRIV + 8) +#define PRISM2_IOCTL_WDS_ADD (SIOCIWFIRSTPRIV + 10) +#define PRISM2_IOCTL_WDS_DEL (SIOCIWFIRSTPRIV + 12) +#define PRISM2_IOCTL_SET_RID_WORD (SIOCIWFIRSTPRIV + 14) +#define PRISM2_IOCTL_MACCMD (SIOCIWFIRSTPRIV + 16) +#define PRISM2_IOCTL_ADDMAC (SIOCIWFIRSTPRIV + 18) +#define PRISM2_IOCTL_DELMAC (SIOCIWFIRSTPRIV + 20) +#define PRISM2_IOCTL_KICKMAC (SIOCIWFIRSTPRIV + 22) + +/* following are not in SIOCGIWPRIV list; check permission in the driver code + */ +#define PRISM2_IOCTL_DOWNLOAD (SIOCDEVPRIVATE + 13) +#define PRISM2_IOCTL_HOSTAPD (SIOCDEVPRIVATE + 14) + + +/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes: */ +enum { + /* PRISM2_PARAM_PTYPE = 1, */ /* REMOVED 2003-10-22 */ + PRISM2_PARAM_TXRATECTRL = 2, + PRISM2_PARAM_BEACON_INT = 3, + PRISM2_PARAM_PSEUDO_IBSS = 4, + PRISM2_PARAM_ALC = 5, + /* PRISM2_PARAM_TXPOWER = 6, */ /* REMOVED 2003-10-22 */ + PRISM2_PARAM_DUMP = 7, + PRISM2_PARAM_OTHER_AP_POLICY = 8, + PRISM2_PARAM_AP_MAX_INACTIVITY = 9, + PRISM2_PARAM_AP_BRIDGE_PACKETS = 10, + PRISM2_PARAM_DTIM_PERIOD = 11, + PRISM2_PARAM_AP_NULLFUNC_ACK = 12, + PRISM2_PARAM_MAX_WDS = 13, + PRISM2_PARAM_AP_AUTOM_AP_WDS = 14, + PRISM2_PARAM_AP_AUTH_ALGS = 15, + PRISM2_PARAM_MONITOR_ALLOW_FCSERR = 16, + PRISM2_PARAM_HOST_ENCRYPT = 17, + PRISM2_PARAM_HOST_DECRYPT = 18, + PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19, + PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20, + PRISM2_PARAM_HOST_ROAMING = 21, + PRISM2_PARAM_BCRX_STA_KEY = 22, + PRISM2_PARAM_IEEE_802_1X = 23, + PRISM2_PARAM_ANTSEL_TX = 24, + PRISM2_PARAM_ANTSEL_RX = 25, + PRISM2_PARAM_MONITOR_TYPE = 26, + PRISM2_PARAM_WDS_TYPE = 27, + PRISM2_PARAM_HOSTSCAN = 28, + PRISM2_PARAM_AP_SCAN = 29, + PRISM2_PARAM_ENH_SEC = 30, + PRISM2_PARAM_IO_DEBUG = 31, + PRISM2_PARAM_BASIC_RATES = 32, + PRISM2_PARAM_OPER_RATES = 33, + PRISM2_PARAM_HOSTAPD = 34, + PRISM2_PARAM_HOSTAPD_STA = 35, + PRISM2_PARAM_WPA = 36, + PRISM2_PARAM_PRIVACY_INVOKED = 37, + PRISM2_PARAM_TKIP_COUNTERMEASURES = 38, + PRISM2_PARAM_DROP_UNENCRYPTED = 39, +}; + +enum { HOSTAP_ANTSEL_DO_NOT_TOUCH = 0, HOSTAP_ANTSEL_DIVERSITY = 1, + HOSTAP_ANTSEL_LOW = 2, HOSTAP_ANTSEL_HIGH = 3 }; + + +/* PRISM2_IOCTL_MACCMD ioctl() subcommands: */ +enum { AP_MAC_CMD_POLICY_OPEN = 0, AP_MAC_CMD_POLICY_ALLOW = 1, + AP_MAC_CMD_POLICY_DENY = 2, AP_MAC_CMD_FLUSH = 3, + AP_MAC_CMD_KICKALL = 4 }; + + +/* PRISM2_IOCTL_DOWNLOAD ioctl() dl_cmd: */ +enum { + PRISM2_DOWNLOAD_VOLATILE = 1 /* RAM */, + /* Note! Old versions of prism2_srec have a fatal error in CRC-16 + * calculation, which will corrupt all non-volatile downloads. + * PRISM2_DOWNLOAD_NON_VOLATILE used to be 2, but it is now 3 to + * prevent use of old versions of prism2_srec for non-volatile + * download. */ + PRISM2_DOWNLOAD_NON_VOLATILE = 3 /* FLASH */, + PRISM2_DOWNLOAD_VOLATILE_GENESIS = 4 /* RAM in Genesis mode */, + /* Persistent versions of volatile download commands (keep firmware + * data in memory and automatically re-download after hw_reset */ + PRISM2_DOWNLOAD_VOLATILE_PERSISTENT = 5, + PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT = 6, +}; + +struct prism2_download_param { + u32 dl_cmd; + u32 start_addr; + u32 num_areas; + struct prism2_download_area { + u32 addr; /* wlan card address */ + u32 len; + void __user *ptr; /* pointer to data in user space */ + } data[0]; +}; + +#define PRISM2_MAX_DOWNLOAD_AREA_LEN 131072 +#define PRISM2_MAX_DOWNLOAD_LEN 262144 + + +/* PRISM2_IOCTL_HOSTAPD ioctl() cmd: */ +enum { + PRISM2_HOSTAPD_FLUSH = 1, + PRISM2_HOSTAPD_ADD_STA = 2, + PRISM2_HOSTAPD_REMOVE_STA = 3, + PRISM2_HOSTAPD_GET_INFO_STA = 4, + /* REMOVED: PRISM2_HOSTAPD_RESET_TXEXC_STA = 5, */ + PRISM2_SET_ENCRYPTION = 6, + PRISM2_GET_ENCRYPTION = 7, + PRISM2_HOSTAPD_SET_FLAGS_STA = 8, + PRISM2_HOSTAPD_GET_RID = 9, + PRISM2_HOSTAPD_SET_RID = 10, + PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR = 11, + PRISM2_HOSTAPD_SET_GENERIC_ELEMENT = 12, + PRISM2_HOSTAPD_MLME = 13, + PRISM2_HOSTAPD_SCAN_REQ = 14, + PRISM2_HOSTAPD_STA_CLEAR_STATS = 15, +}; + +#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024 +#define PRISM2_HOSTAPD_RID_HDR_LEN \ +((int) (&((struct prism2_hostapd_param *) 0)->u.rid.data)) +#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \ +((int) (&((struct prism2_hostapd_param *) 0)->u.generic_elem.data)) + +/* Maximum length for algorithm names (-1 for nul termination) used in ioctl() + */ +#define HOSTAP_CRYPT_ALG_NAME_LEN 16 + + +struct prism2_hostapd_param { + u32 cmd; + u8 sta_addr[ETH_ALEN]; + union { + struct { + u16 aid; + u16 capability; + u8 tx_supp_rates; + } add_sta; + struct { + u32 inactive_sec; + } get_info_sta; + struct { + u8 alg[HOSTAP_CRYPT_ALG_NAME_LEN]; + u32 flags; + u32 err; + u8 idx; + u8 seq[8]; /* sequence counter (set: RX, get: TX) */ + u16 key_len; + u8 key[0]; + } crypt; + struct { + u32 flags_and; + u32 flags_or; + } set_flags_sta; + struct { + u16 rid; + u16 len; + u8 data[0]; + } rid; + struct { + u8 len; + u8 data[0]; + } generic_elem; + struct { +#define MLME_STA_DEAUTH 0 +#define MLME_STA_DISASSOC 1 + u16 cmd; + u16 reason_code; + } mlme; + struct { + u8 ssid_len; + u8 ssid[32]; + } scan_req; + } u; +}; + +#define HOSTAP_CRYPT_FLAG_SET_TX_KEY BIT(0) +#define HOSTAP_CRYPT_FLAG_PERMANENT BIT(1) + +#define HOSTAP_CRYPT_ERR_UNKNOWN_ALG 2 +#define HOSTAP_CRYPT_ERR_UNKNOWN_ADDR 3 +#define HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED 4 +#define HOSTAP_CRYPT_ERR_KEY_SET_FAILED 5 +#define HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED 6 +#define HOSTAP_CRYPT_ERR_CARD_CONF_FAILED 7 + + +#endif /* HOSTAP_COMMON_H */ diff --git a/drivers/net/wireless/hostap/hostap_config.h b/drivers/net/wireless/hostap/hostap_config.h new file mode 100644 index 0000000..fcf4578 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_config.h @@ -0,0 +1,86 @@ +#ifndef HOSTAP_CONFIG_H +#define HOSTAP_CONFIG_H + +#define PRISM2_VERSION "CVS" + +/* In the previous versions of Host AP driver, support for user space version + * of IEEE 802.11 management (hostapd) used to be disabled in the default + * configuration. From now on, support for hostapd is always included and it is + * possible to disable kernel driver version of IEEE 802.11 management with a + * separate define, PRISM2_NO_KERNEL_IEEE80211_MGMT. */ +/* #define PRISM2_NO_KERNEL_IEEE80211_MGMT */ + +/* Maximum number of events handler per one interrupt */ +#define PRISM2_MAX_INTERRUPT_EVENTS 20 + +/* Use PCI bus master to copy data to/from BAP (only available for + * hostap_pci.o). + * + * Note! This is extremely experimental. PCI bus master is not supported by + * Intersil and it seems to have some problems at least on TX path (see below). + * The driver code for implementing bus master support is based on guessing + * and experimenting suitable control bits and these might not be correct. + * This code is included because using bus master makes a huge difference in + * host CPU load (something like 40% host CPU usage to 5-10% when sending or + * receiving at maximum throughput). + * + * Note2! Station firmware version 1.3.5 and primary firmware version 1.0.7 + * have some fixes for PCI corruption and these (or newer) versions are + * recommended especially when using bus mastering. + * + * NOTE: PCI bus mastering code has not been updated for long time and it is + * not likely to compile and it will _not_ work as is. Only enable this if you + * are prepared to first fix the implementation.. + */ +/* #define PRISM2_BUS_MASTER */ + +#ifdef PRISM2_BUS_MASTER + +/* PCI bus master implementation seems to be broken in current + * hardware/firmware versions. Enable this to use enable command to fix + * something before starting bus master operation on TX path. This will add + * some latency and an extra interrupt to each TX packet. */ +#define PRISM2_ENABLE_BEFORE_TX_BUS_MASTER + +#endif /* PRISM2_BUS_MASTER */ + +/* Include code for downloading firmware images into volatile RAM. */ +#define PRISM2_DOWNLOAD_SUPPORT + +/* Allow kernel configuration to enable download support. */ +#if !defined(PRISM2_DOWNLOAD_SUPPORT) && defined(CONFIG_HOSTAP_FIRMWARE) +#define PRISM2_DOWNLOAD_SUPPORT +#endif + +#ifdef PRISM2_DOWNLOAD_SUPPORT +/* Allow writing firmware images into flash, i.e., to non-volatile storage. + * Before you enable this option, you should make absolutely sure that you are + * using prism2_srec utility that comes with THIS version of the driver! + * In addition, please note that it is possible to kill your card with + * non-volatile download if you are using incorrect image. This feature has not + * been fully tested, so please be careful with it. */ +/* #define PRISM2_NON_VOLATILE_DOWNLOAD */ +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + +/* Save low-level I/O for debugging. This should not be enabled in normal use. + */ +/* #define PRISM2_IO_DEBUG */ + +/* Following defines can be used to remove unneeded parts of the driver, e.g., + * to limit the size of the kernel module. Definitions can be added here in + * hostap_config.h or they can be added to make command with EXTRA_CFLAGS, + * e.g., + * 'make pccard EXTRA_CFLAGS="-DPRISM2_NO_DEBUG -DPRISM2_NO_PROCFS_DEBUG"' + */ + +/* Do not include debug messages into the driver */ +/* #define PRISM2_NO_DEBUG */ + +/* Do not include /proc/net/prism2/wlan#/{registers,debug} */ +/* #define PRISM2_NO_PROCFS_DEBUG */ + +/* Do not include station functionality (i.e., allow only Master (Host AP) mode + */ +/* #define PRISM2_NO_STATION_MODES */ + +#endif /* HOSTAP_CONFIG_H */ diff --git a/drivers/net/wireless/hostap/hostap_crypt.c b/drivers/net/wireless/hostap/hostap_crypt.c new file mode 100644 index 0000000..de5390d --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_crypt.c @@ -0,0 +1,167 @@ +/* + * Host AP crypto routines + * + * Copyright (c) 2002-2003, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +struct hostap_crypto_alg { + struct list_head list; + struct hostap_crypto_ops *ops; +}; + + +struct hostap_crypto { + struct list_head algs; + spinlock_t lock; +}; + +static struct hostap_crypto *hcrypt; + + +int hostap_register_crypto_ops(struct hostap_crypto_ops *ops) +{ + unsigned long flags; + struct hostap_crypto_alg *alg; + + if (hcrypt == NULL) + return -1; + + alg = (struct hostap_crypto_alg *) kmalloc(sizeof(*alg), GFP_KERNEL); + if (alg == NULL) + return -ENOMEM; + + memset(alg, 0, sizeof(*alg)); + alg->ops = ops; + + spin_lock_irqsave(&hcrypt->lock, flags); + list_add(&alg->list, &hcrypt->algs); + spin_unlock_irqrestore(&hcrypt->lock, flags); + + printk(KERN_DEBUG "hostap_crypt: registered algorithm '%s'\n", + ops->name); + + return 0; +} + + +int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops) +{ + unsigned long flags; + struct list_head *ptr; + struct hostap_crypto_alg *del_alg = NULL; + + if (hcrypt == NULL) + return -1; + + spin_lock_irqsave(&hcrypt->lock, flags); + for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { + struct hostap_crypto_alg *alg = + (struct hostap_crypto_alg *) ptr; + if (alg->ops == ops) { + list_del(&alg->list); + del_alg = alg; + break; + } + } + spin_unlock_irqrestore(&hcrypt->lock, flags); + + if (del_alg) { + printk(KERN_DEBUG "hostap_crypt: unregistered algorithm " + "'%s'\n", ops->name); + kfree(del_alg); + } + + return del_alg ? 0 : -1; +} + + +struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name) +{ + unsigned long flags; + struct list_head *ptr; + struct hostap_crypto_alg *found_alg = NULL; + + if (hcrypt == NULL) + return NULL; + + spin_lock_irqsave(&hcrypt->lock, flags); + for (ptr = hcrypt->algs.next; ptr != &hcrypt->algs; ptr = ptr->next) { + struct hostap_crypto_alg *alg = + (struct hostap_crypto_alg *) ptr; + if (strcmp(alg->ops->name, name) == 0) { + found_alg = alg; + break; + } + } + spin_unlock_irqrestore(&hcrypt->lock, flags); + + if (found_alg) + return found_alg->ops; + else + return NULL; +} + + +static void * hostap_crypt_null_init(int keyidx) { return (void *) 1; } +static void hostap_crypt_null_deinit(void *priv) {} + +static struct hostap_crypto_ops hostap_crypt_null = { + .name = "NULL", + .init = hostap_crypt_null_init, + .deinit = hostap_crypt_null_deinit, + .encrypt_mpdu = NULL, + .decrypt_mpdu = NULL, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = NULL, + .get_key = NULL, + .extra_prefix_len = 0, + .extra_postfix_len = 0 +}; + + +static int __init hostap_crypto_init(void) +{ + hcrypt = (struct hostap_crypto *) kmalloc(sizeof(*hcrypt), GFP_KERNEL); + if (hcrypt == NULL) + return -ENOMEM; + + memset(hcrypt, 0, sizeof(*hcrypt)); + INIT_LIST_HEAD(&hcrypt->algs); + spin_lock_init(&hcrypt->lock); + + (void) hostap_register_crypto_ops(&hostap_crypt_null); + + return 0; +} + + +static void __exit hostap_crypto_deinit(void) +{ + struct list_head *ptr, *n; + + if (hcrypt == NULL) + return; + + for (ptr = hcrypt->algs.next, n = ptr->next; ptr != &hcrypt->algs; + ptr = n, n = ptr->next) { + struct hostap_crypto_alg *alg = + (struct hostap_crypto_alg *) ptr; + list_del(ptr); + printk(KERN_DEBUG "hostap_crypt: unregistered algorithm " + "'%s' (deinit)\n", alg->ops->name); + kfree(alg); + } + + kfree(hcrypt); +} + + +EXPORT_SYMBOL(hostap_register_crypto_ops); +EXPORT_SYMBOL(hostap_unregister_crypto_ops); +EXPORT_SYMBOL(hostap_get_crypto_ops); diff --git a/drivers/net/wireless/hostap/hostap_crypt.h b/drivers/net/wireless/hostap/hostap_crypt.h new file mode 100644 index 0000000..45d66d0 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_crypt.h @@ -0,0 +1,50 @@ +#ifndef PRISM2_CRYPT_H +#define PRISM2_CRYPT_H + +struct hostap_crypto_ops { + char *name; + + /* init new crypto context (e.g., allocate private data space, + * select IV, etc.); returns NULL on failure or pointer to allocated + * private data on success */ + void * (*init)(int keyidx); + + /* deinitialize crypto context and free allocated private data */ + void (*deinit)(void *priv); + + /* encrypt/decrypt return < 0 on error or >= 0 on success. The return + * value from decrypt_mpdu is passed as the keyidx value for + * decrypt_msdu. skb must have enough head and tail room for the + * encryption; if not, error will be returned; these functions are + * called for all MPDUs (i.e., fragments). + */ + int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + + /* These functions are called for full MSDUs, i.e. full frames. + * These can be NULL if full MSDU operations are not needed. */ + int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv); + int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len, + void *priv); + + int (*set_key)(void *key, int len, u8 *seq, void *priv); + int (*get_key)(void *key, int len, u8 *seq, void *priv); + + /* procfs handler for printing out key information and possible + * statistics */ + char * (*print_stats)(char *p, void *priv); + + /* maximum number of bytes added by encryption; encrypt buf is + * allocated with extra_prefix_len bytes, copy of in_buf, and + * extra_postfix_len; encrypt need not use all this space, but + * the result must start at the beginning of the buffer and correct + * length must be returned */ + int extra_prefix_len, extra_postfix_len; +}; + + +int hostap_register_crypto_ops(struct hostap_crypto_ops *ops); +int hostap_unregister_crypto_ops(struct hostap_crypto_ops *ops); +struct hostap_crypto_ops * hostap_get_crypto_ops(const char *name); + +#endif /* PRISM2_CRYPT_H */ diff --git a/drivers/net/wireless/hostap/hostap_crypt_ccmp.c b/drivers/net/wireless/hostap/hostap_crypt_ccmp.c new file mode 100644 index 0000000..e95bcc7 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_crypt_ccmp.c @@ -0,0 +1,486 @@ +/* + * Host AP crypt: host-based CCMP encryption implementation for Host AP driver + * + * Copyright (c) 2003-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hostap_crypt.h" +#include "hostap_wlan.h" +#include "hostap_80211.h" + +#ifndef CONFIG_CRYPTO +#error CONFIG_CRYPTO is required to build this module. +#endif +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: CCMP"); +MODULE_LICENSE("GPL"); + + +#define AES_BLOCK_LEN 16 +#define CCMP_HDR_LEN 8 +#define CCMP_MIC_LEN 8 +#define CCMP_TK_LEN 16 +#define CCMP_PN_LEN 6 + + +struct hostap_ccmp_data { + u8 key[CCMP_TK_LEN]; + int key_set; + + u8 tx_pn[CCMP_PN_LEN]; + u8 rx_pn[CCMP_PN_LEN]; + + u32 dot11RSNAStatsCCMPFormatErrors; + u32 dot11RSNAStatsCCMPReplays; + u32 dot11RSNAStatsCCMPDecryptErrors; + + int key_idx; + + struct crypto_tfm *tfm; + + /* scratch buffers for virt_to_page() (crypto API) */ + u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], + tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN]; + u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; +}; + + +void hostap_ccmp_aes_encrypt(struct crypto_tfm *tfm, + const u8 pt[16], u8 ct[16]) +{ + struct scatterlist src, dst; + + src.page = virt_to_page(pt); + src.offset = offset_in_page(pt); + src.length = AES_BLOCK_LEN; + + dst.page = virt_to_page(ct); + dst.offset = offset_in_page(ct); + dst.length = AES_BLOCK_LEN; + + crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN); +} + + +static void * hostap_ccmp_init(int key_idx) +{ + struct hostap_ccmp_data *priv; + + if (!try_module_get(THIS_MODULE)) + return NULL; + + priv = (struct hostap_ccmp_data *) kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) { + goto fail; + } + memset(priv, 0, sizeof(*priv)); + priv->key_idx = key_idx; + + priv->tfm = crypto_alloc_tfm("aes", 0); + if (priv->tfm == NULL) { + printk(KERN_DEBUG "hostap_crypt_ccmp: could not allocate " + "crypto API aes\n"); + goto fail; + } + + return priv; + +fail: + if (priv) { + if (priv->tfm) + crypto_free_tfm(priv->tfm); + kfree(priv); + } + module_put(THIS_MODULE); + return NULL; +} + + +static void hostap_ccmp_deinit(void *priv) +{ + struct hostap_ccmp_data *_priv = priv; + if (_priv && _priv->tfm) + crypto_free_tfm(_priv->tfm); + kfree(priv); + module_put(THIS_MODULE); +} + + +static inline void xor_block(u8 *b, u8 *a, size_t len) +{ + int i; + for (i = 0; i < len; i++) + b[i] ^= a[i]; +} + + +static void ccmp_init_blocks(struct crypto_tfm *tfm, + struct hostap_ieee80211_hdr *hdr, + u8 *pn, size_t dlen, u8 *b0, u8 *auth, + u8 *s0) +{ + u8 *pos, qc = 0; + size_t aad_len; + u16 fc; + int a4_included, qc_included; + u8 aad[2 * AES_BLOCK_LEN]; + + fc = le16_to_cpu(hdr->frame_control); + a4_included = ((fc & (WLAN_FC_TODS | WLAN_FC_FROMDS)) == + (WLAN_FC_TODS | WLAN_FC_FROMDS)); + qc_included = ((WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA) && + (WLAN_FC_GET_STYPE(fc) & 0x08)); + aad_len = 22; + if (a4_included) + aad_len += 6; + if (qc_included) { + pos = (u8 *) &hdr->addr4; + if (a4_included) + pos += 6; + qc = *pos & 0x0f; + aad_len += 2; + } + + /* CCM Initial Block: + * Flag (Include authentication header, M=3 (8-octet MIC), + * L=1 (2-octet Dlen)) + * Nonce: 0x00 | A2 | PN + * Dlen */ + b0[0] = 0x59; + b0[1] = qc; + memcpy(b0 + 2, hdr->addr2, ETH_ALEN); + memcpy(b0 + 8, pn, CCMP_PN_LEN); + b0[14] = (dlen >> 8) & 0xff; + b0[15] = dlen & 0xff; + + /* AAD: + * FC with bits 4..6 and 11..13 masked to zero; 14 is always one + * A1 | A2 | A3 + * SC with bits 4..15 (seq#) masked to zero + * A4 (if present) + * QC (if present) + */ + pos = (u8 *) hdr; + aad[0] = 0; /* aad_len >> 8 */ + aad[1] = aad_len & 0xff; + aad[2] = pos[0] & 0x8f; + aad[3] = pos[1] & 0xc7; + memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN); + pos = (u8 *) &hdr->seq_ctrl; + aad[22] = pos[0] & 0x0f; + aad[23] = 0; /* all bits masked */ + memset(aad + 24, 0, 8); + if (a4_included) + memcpy(aad + 24, hdr->addr4, ETH_ALEN); + if (qc_included) { + aad[a4_included ? 30 : 24] = qc; + /* rest of QC masked */ + } + + /* Start with the first block and AAD */ + hostap_ccmp_aes_encrypt(tfm, b0, auth); + xor_block(auth, aad, AES_BLOCK_LEN); + hostap_ccmp_aes_encrypt(tfm, auth, auth); + xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN); + hostap_ccmp_aes_encrypt(tfm, auth, auth); + b0[0] &= 0x07; + b0[14] = b0[15] = 0; + hostap_ccmp_aes_encrypt(tfm, b0, s0); +} + + +static int hostap_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct hostap_ccmp_data *key = priv; + int data_len, i, blocks, last, len; + u8 *pos, *mic; + struct hostap_ieee80211_hdr *hdr; + u8 *b0 = key->tx_b0; + u8 *b = key->tx_b; + u8 *e = key->tx_e; + u8 *s0 = key->tx_s0; + + if (skb_headroom(skb) < CCMP_HDR_LEN || + skb_tailroom(skb) < CCMP_MIC_LEN || + skb->len < hdr_len) + return -1; + + data_len = skb->len - hdr_len; + pos = skb_push(skb, CCMP_HDR_LEN); + memmove(pos, pos + CCMP_HDR_LEN, hdr_len); + pos += hdr_len; + mic = skb_put(skb, CCMP_MIC_LEN); + + i = CCMP_PN_LEN - 1; + while (i >= 0) { + key->tx_pn[i]++; + if (key->tx_pn[i] != 0) + break; + i--; + } + + *pos++ = key->tx_pn[5]; + *pos++ = key->tx_pn[4]; + *pos++ = 0; + *pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */; + *pos++ = key->tx_pn[3]; + *pos++ = key->tx_pn[2]; + *pos++ = key->tx_pn[1]; + *pos++ = key->tx_pn[0]; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0); + + blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + last = data_len % AES_BLOCK_LEN; + + for (i = 1; i <= blocks; i++) { + len = (i == blocks && last) ? last : AES_BLOCK_LEN; + /* Authentication */ + xor_block(b, pos, len); + hostap_ccmp_aes_encrypt(key->tfm, b, b); + /* Encryption, with counter */ + b0[14] = (i >> 8) & 0xff; + b0[15] = i & 0xff; + hostap_ccmp_aes_encrypt(key->tfm, b0, e); + xor_block(pos, e, len); + pos += len; + } + + for (i = 0; i < CCMP_MIC_LEN; i++) + mic[i] = b[i] ^ s0[i]; + + return 0; +} + + +static int hostap_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct hostap_ccmp_data *key = priv; + u8 keyidx, *pos; + struct hostap_ieee80211_hdr *hdr; + u8 *b0 = key->rx_b0; + u8 *b = key->rx_b; + u8 *a = key->rx_a; + u8 pn[6]; + int i, blocks, last, len; + size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; + u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; + + if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) { + key->dot11RSNAStatsCCMPFormatErrors++; + return -1; + } + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + pos = skb->data + hdr_len; + keyidx = pos[3]; + if (!(keyidx & (1 << 5))) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: received packet without ExtIV" + " flag from " MACSTR "\n", MAC2STR(hdr->addr2)); + } + key->dot11RSNAStatsCCMPFormatErrors++; + return -2; + } + keyidx >>= 6; + if (key->key_idx != keyidx) { + printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame " + "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv); + return -6; + } + if (!key->key_set) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: received packet from " MACSTR + " with keyid=%d that does not have a configured" + " key\n", MAC2STR(hdr->addr2), keyidx); + } + return -3; + } + + pn[0] = pos[7]; + pn[1] = pos[6]; + pn[2] = pos[5]; + pn[3] = pos[4]; + pn[4] = pos[1]; + pn[5] = pos[0]; + pos += 8; + + if (memcmp(pn, key->rx_pn, CCMP_PN_LEN) <= 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: replay detected: STA=" MACSTR + " previous PN %02x%02x%02x%02x%02x%02x " + "received PN %02x%02x%02x%02x%02x%02x\n", + MAC2STR(hdr->addr2), MAC2STR(key->rx_pn), + MAC2STR(pn)); + } + key->dot11RSNAStatsCCMPReplays++; + return -4; + } + + ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b); + xor_block(mic, b, CCMP_MIC_LEN); + + blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN; + last = data_len % AES_BLOCK_LEN; + + for (i = 1; i <= blocks; i++) { + len = (i == blocks && last) ? last : AES_BLOCK_LEN; + /* Decrypt, with counter */ + b0[14] = (i >> 8) & 0xff; + b0[15] = i & 0xff; + hostap_ccmp_aes_encrypt(key->tfm, b0, b); + xor_block(pos, b, len); + /* Authentication */ + xor_block(a, pos, len); + hostap_ccmp_aes_encrypt(key->tfm, a, a); + pos += len; + } + + if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { + if (net_ratelimit()) { + printk(KERN_DEBUG "CCMP: decrypt failed: STA=" + MACSTR "\n", MAC2STR(hdr->addr2)); + } + key->dot11RSNAStatsCCMPDecryptErrors++; + return -5; + } + + memcpy(key->rx_pn, pn, CCMP_PN_LEN); + + /* Remove hdr and MIC */ + memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len); + skb_pull(skb, CCMP_HDR_LEN); + skb_trim(skb, skb->len - CCMP_MIC_LEN); + + return keyidx; +} + + +static int hostap_ccmp_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct hostap_ccmp_data *data = priv; + int keyidx; + struct crypto_tfm *tfm = data->tfm; + + keyidx = data->key_idx; + memset(data, 0, sizeof(*data)); + data->key_idx = keyidx; + data->tfm = tfm; + if (len == CCMP_TK_LEN) { + memcpy(data->key, key, CCMP_TK_LEN); + data->key_set = 1; + if (seq) { + data->rx_pn[0] = seq[5]; + data->rx_pn[1] = seq[4]; + data->rx_pn[2] = seq[3]; + data->rx_pn[3] = seq[2]; + data->rx_pn[4] = seq[1]; + data->rx_pn[5] = seq[0]; + } + crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN); + } else if (len == 0) { + data->key_set = 0; + } else + return -1; + + return 0; +} + + +static int hostap_ccmp_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct hostap_ccmp_data *data = priv; + + if (len < CCMP_TK_LEN) + return -1; + + if (!data->key_set) + return 0; + memcpy(key, data->key, CCMP_TK_LEN); + + if (seq) { + seq[0] = data->tx_pn[5]; + seq[1] = data->tx_pn[4]; + seq[2] = data->tx_pn[3]; + seq[3] = data->tx_pn[2]; + seq[4] = data->tx_pn[1]; + seq[5] = data->tx_pn[0]; + } + + return CCMP_TK_LEN; +} + + +static char * hostap_ccmp_print_stats(char *p, void *priv) +{ + struct hostap_ccmp_data *ccmp = priv; + p += sprintf(p, "key[%d] alg=CCMP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "format_errors=%d replays=%d decrypt_errors=%d\n", + ccmp->key_idx, ccmp->key_set, + MAC2STR(ccmp->tx_pn), MAC2STR(ccmp->rx_pn), + ccmp->dot11RSNAStatsCCMPFormatErrors, + ccmp->dot11RSNAStatsCCMPReplays, + ccmp->dot11RSNAStatsCCMPDecryptErrors); + + return p; +} + + +static struct hostap_crypto_ops hostap_crypt_ccmp = { + .name = "CCMP", + .init = hostap_ccmp_init, + .deinit = hostap_ccmp_deinit, + .encrypt_mpdu = hostap_ccmp_encrypt, + .decrypt_mpdu = hostap_ccmp_decrypt, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = hostap_ccmp_set_key, + .get_key = hostap_ccmp_get_key, + .print_stats = hostap_ccmp_print_stats, + .extra_prefix_len = CCMP_HDR_LEN, + .extra_postfix_len = CCMP_MIC_LEN +}; + + +static int __init hostap_crypto_ccmp_init(void) +{ + if (hostap_register_crypto_ops(&hostap_crypt_ccmp) < 0) + return -1; + + return 0; +} + + +static void __exit hostap_crypto_ccmp_exit(void) +{ + hostap_unregister_crypto_ops(&hostap_crypt_ccmp); +} + + +module_init(hostap_crypto_ccmp_init); +module_exit(hostap_crypto_ccmp_exit); diff --git a/drivers/net/wireless/hostap/hostap_crypt_tkip.c b/drivers/net/wireless/hostap/hostap_crypt_tkip.c new file mode 100644 index 0000000..e8d56bc --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_crypt_tkip.c @@ -0,0 +1,696 @@ +/* + * Host AP crypt: host-based TKIP encryption implementation for Host AP driver + * + * Copyright (c) 2003-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hostap_crypt.h" +#include "hostap_wlan.h" +#include "hostap_80211.h" +#include "hostap_config.h" + +#ifndef CONFIG_CRYPTO +#error CONFIG_CRYPTO is required to build this module. +#endif +#include +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: TKIP"); +MODULE_LICENSE("GPL"); + + +struct hostap_tkip_data { +#define TKIP_KEY_LEN 32 + u8 key[TKIP_KEY_LEN]; + int key_set; + + u32 tx_iv32; + u16 tx_iv16; + u16 tx_ttak[5]; + int tx_phase1_done; + + u32 rx_iv32; + u16 rx_iv16; + u16 rx_ttak[5]; + int rx_phase1_done; + u32 rx_iv32_new; + u16 rx_iv16_new; + + u32 dot11RSNAStatsTKIPReplays; + u32 dot11RSNAStatsTKIPICVErrors; + u32 dot11RSNAStatsTKIPLocalMICFailures; + + int key_idx; + + struct crypto_tfm *tfm_arc4; + struct crypto_tfm *tfm_michael; + + /* scratch buffers for virt_to_page() (crypto API) */ + u8 rx_hdr[16], tx_hdr[16]; +}; + + +static void * hostap_tkip_init(int key_idx) +{ + struct hostap_tkip_data *priv; + + if (!try_module_get(THIS_MODULE)) + return NULL; + + priv = (struct hostap_tkip_data *) kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) + goto fail; + memset(priv, 0, sizeof(*priv)); + priv->key_idx = key_idx; + + priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0); + if (priv->tfm_arc4 == NULL) { + printk(KERN_DEBUG "hostap_crypt_tkip: could not allocate " + "crypto API arc4\n"); + goto fail; + } + + priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0); + if (priv->tfm_michael == NULL) { + printk(KERN_DEBUG "hostap_crypt_tkip: could not allocate " + "crypto API michael_mic\n"); + goto fail; + } + + return priv; + +fail: + if (priv) { + if (priv->tfm_michael) + crypto_free_tfm(priv->tfm_michael); + if (priv->tfm_arc4) + crypto_free_tfm(priv->tfm_arc4); + kfree(priv); + } + module_put(THIS_MODULE); + return NULL; +} + + +static void hostap_tkip_deinit(void *priv) +{ + struct hostap_tkip_data *_priv = priv; + if (_priv && _priv->tfm_michael) + crypto_free_tfm(_priv->tfm_michael); + if (_priv && _priv->tfm_arc4) + crypto_free_tfm(_priv->tfm_arc4); + kfree(priv); + module_put(THIS_MODULE); +} + + +static inline u16 RotR1(u16 val) +{ + return (val >> 1) | (val << 15); +} + + +static inline u8 Lo8(u16 val) +{ + return val & 0xff; +} + + +static inline u8 Hi8(u16 val) +{ + return val >> 8; +} + + +static inline u16 Lo16(u32 val) +{ + return val & 0xffff; +} + + +static inline u16 Hi16(u32 val) +{ + return val >> 16; +} + + +static inline u16 Mk16(u8 hi, u8 lo) +{ + return lo | (((u16) hi) << 8); +} + + +static inline u16 Mk16_le(u16 *v) +{ + return le16_to_cpu(*v); +} + + +static const u16 Sbox[256] = +{ + 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154, + 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A, + 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B, + 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B, + 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F, + 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F, + 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5, + 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F, + 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB, + 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397, + 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED, + 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A, + 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194, + 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3, + 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104, + 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D, + 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39, + 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695, + 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83, + 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76, + 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4, + 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B, + 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0, + 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018, + 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751, + 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85, + 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12, + 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9, + 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7, + 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A, + 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8, + 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A, +}; + + +static inline u16 _S_(u16 v) +{ + u16 t = Sbox[Hi8(v)]; + return Sbox[Lo8(v)] ^ ((t << 8) | (t >> 8)); +} + + +#define PHASE1_LOOP_COUNT 8 + +static void tkip_mixing_phase1(u16 *TTAK, const u8 *TK, const u8 *TA, u32 IV32) +{ + int i, j; + + /* Initialize the 80-bit TTAK from TSC (IV32) and TA[0..5] */ + TTAK[0] = Lo16(IV32); + TTAK[1] = Hi16(IV32); + TTAK[2] = Mk16(TA[1], TA[0]); + TTAK[3] = Mk16(TA[3], TA[2]); + TTAK[4] = Mk16(TA[5], TA[4]); + + for (i = 0; i < PHASE1_LOOP_COUNT; i++) { + j = 2 * (i & 1); + TTAK[0] += _S_(TTAK[4] ^ Mk16(TK[1 + j], TK[0 + j])); + TTAK[1] += _S_(TTAK[0] ^ Mk16(TK[5 + j], TK[4 + j])); + TTAK[2] += _S_(TTAK[1] ^ Mk16(TK[9 + j], TK[8 + j])); + TTAK[3] += _S_(TTAK[2] ^ Mk16(TK[13 + j], TK[12 + j])); + TTAK[4] += _S_(TTAK[3] ^ Mk16(TK[1 + j], TK[0 + j])) + i; + } +} + + +static void tkip_mixing_phase2(u8 *WEPSeed, const u8 *TK, const u16 *TTAK, + u16 IV16) +{ + /* Make temporary area overlap WEP seed so that the final copy can be + * avoided on little endian hosts. */ + u16 *PPK = (u16 *) &WEPSeed[4]; + + /* Step 1 - make copy of TTAK and bring in TSC */ + PPK[0] = TTAK[0]; + PPK[1] = TTAK[1]; + PPK[2] = TTAK[2]; + PPK[3] = TTAK[3]; + PPK[4] = TTAK[4]; + PPK[5] = TTAK[4] + IV16; + + /* Step 2 - 96-bit bijective mixing using S-box */ + PPK[0] += _S_(PPK[5] ^ Mk16_le((u16 *) &TK[0])); + PPK[1] += _S_(PPK[0] ^ Mk16_le((u16 *) &TK[2])); + PPK[2] += _S_(PPK[1] ^ Mk16_le((u16 *) &TK[4])); + PPK[3] += _S_(PPK[2] ^ Mk16_le((u16 *) &TK[6])); + PPK[4] += _S_(PPK[3] ^ Mk16_le((u16 *) &TK[8])); + PPK[5] += _S_(PPK[4] ^ Mk16_le((u16 *) &TK[10])); + + PPK[0] += RotR1(PPK[5] ^ Mk16_le((u16 *) &TK[12])); + PPK[1] += RotR1(PPK[0] ^ Mk16_le((u16 *) &TK[14])); + PPK[2] += RotR1(PPK[1]); + PPK[3] += RotR1(PPK[2]); + PPK[4] += RotR1(PPK[3]); + PPK[5] += RotR1(PPK[4]); + + /* Step 3 - bring in last of TK bits, assign 24-bit WEP IV value + * WEPSeed[0..2] is transmitted as WEP IV */ + WEPSeed[0] = Hi8(IV16); + WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F; + WEPSeed[2] = Lo8(IV16); + WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((u16 *) &TK[0])) >> 1); + +#ifdef __BIG_ENDIAN + { + int i; + for (i = 0; i < 6; i++) + PPK[i] = (PPK[i] << 8) | (PPK[i] >> 8); + } +#endif +} + + +static int hostap_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + int len; + u8 rc4key[16], *pos, *icv; + struct hostap_ieee80211_hdr *hdr; + u32 crc; + struct scatterlist sg; + + if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 || + skb->len < hdr_len) + return -1; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + if (!tkey->tx_phase1_done) { + tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2, + tkey->tx_iv32); + tkey->tx_phase1_done = 1; + } + tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16); + + len = skb->len - hdr_len; + pos = skb_push(skb, 8); + memmove(pos, pos + 8, hdr_len); + pos += hdr_len; + icv = skb_put(skb, 4); + + *pos++ = rc4key[0]; + *pos++ = rc4key[1]; + *pos++ = rc4key[2]; + *pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */; + *pos++ = tkey->tx_iv32 & 0xff; + *pos++ = (tkey->tx_iv32 >> 8) & 0xff; + *pos++ = (tkey->tx_iv32 >> 16) & 0xff; + *pos++ = (tkey->tx_iv32 >> 24) & 0xff; + + crc = ~crc32_le(~0, pos, len); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + + crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = len + 4; + crypto_cipher_encrypt(tkey->tfm_arc4, &sg, &sg, len + 4); + + tkey->tx_iv16++; + if (tkey->tx_iv16 == 0) { + tkey->tx_phase1_done = 0; + tkey->tx_iv32++; + } + + return 0; +} + + +static int hostap_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + u8 rc4key[16]; + u8 keyidx, *pos, icv[4]; + u32 iv32; + u16 iv16; + struct hostap_ieee80211_hdr *hdr; + u32 crc; + struct scatterlist sg; + int plen; + + if (skb->len < hdr_len + 8 + 4) + return -1; + + hdr = (struct hostap_ieee80211_hdr *) skb->data; + pos = skb->data + hdr_len; + keyidx = pos[3]; + if (!(keyidx & (1 << 5))) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: received packet without ExtIV" + " flag from " MACSTR "\n", MAC2STR(hdr->addr2)); + } + return -2; + } + keyidx >>= 6; + if (tkey->key_idx != keyidx) { + printk(KERN_DEBUG "TKIP: RX tkey->key_idx=%d frame " + "keyidx=%d priv=%p\n", tkey->key_idx, keyidx, priv); + return -6; + } + if (!tkey->key_set) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: received packet from " MACSTR + " with keyid=%d that does not have a configured" + " key\n", MAC2STR(hdr->addr2), keyidx); + } + return -3; + } + iv16 = (pos[0] << 8) | pos[2]; + iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24); + pos += 8; + + if (iv32 < tkey->rx_iv32 || + (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) { + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: replay detected: STA=" MACSTR + " previous TSC %08x%04x received TSC " + "%08x%04x\n", MAC2STR(hdr->addr2), + tkey->rx_iv32, tkey->rx_iv16, iv32, iv16); + } + tkey->dot11RSNAStatsTKIPReplays++; + return -4; + } + + if (iv32 != tkey->rx_iv32 || !tkey->rx_phase1_done) { + tkip_mixing_phase1(tkey->rx_ttak, tkey->key, hdr->addr2, iv32); + tkey->rx_phase1_done = 1; + } + tkip_mixing_phase2(rc4key, tkey->key, tkey->rx_ttak, iv16); + + plen = skb->len - hdr_len - 12; + + crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = plen + 4; + crypto_cipher_decrypt(tkey->tfm_arc4, &sg, &sg, plen + 4); + + crc = ~crc32_le(~0, pos, plen); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + if (memcmp(icv, pos + plen, 4) != 0) { + if (iv32 != tkey->rx_iv32) { + /* Previously cached Phase1 result was already lost, so + * it needs to be recalculated for the next packet. */ + tkey->rx_phase1_done = 0; + } + if (net_ratelimit()) { + printk(KERN_DEBUG "TKIP: ICV error detected: STA=" + MACSTR "\n", MAC2STR(hdr->addr2)); + } + tkey->dot11RSNAStatsTKIPICVErrors++; + return -5; + } + + /* Update real counters only after Michael MIC verification has + * completed */ + tkey->rx_iv32_new = iv32; + tkey->rx_iv16_new = iv16; + + /* Remove IV and ICV */ + memmove(skb->data + 8, skb->data, hdr_len); + skb_pull(skb, 8); + skb_trim(skb, skb->len - 4); + + return keyidx; +} + + +static int michael_mic(struct hostap_tkip_data *tkey, u8 *key, u8 *hdr, + u8 *data, size_t data_len, u8 *mic) +{ + struct scatterlist sg[2]; + + if (tkey->tfm_michael == NULL) { + printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n"); + return -1; + } + sg[0].page = virt_to_page(hdr); + sg[0].offset = offset_in_page(hdr); + sg[0].length = 16; + + sg[1].page = virt_to_page(data); + sg[1].offset = offset_in_page(data); + sg[1].length = data_len; + + crypto_digest_init(tkey->tfm_michael); + crypto_digest_setkey(tkey->tfm_michael, key, 8); + crypto_digest_update(tkey->tfm_michael, sg, 2); + crypto_digest_final(tkey->tfm_michael, mic); + + return 0; +} + + +static void michael_mic_hdr(struct sk_buff *skb, u8 *hdr) +{ + struct hostap_ieee80211_hdr *hdr11; + + hdr11 = (struct hostap_ieee80211_hdr *) skb->data; + switch (le16_to_cpu(hdr11->frame_control) & + (WLAN_FC_FROMDS | WLAN_FC_TODS)) { + case WLAN_FC_TODS: + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + break; + case WLAN_FC_FROMDS: + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr3, ETH_ALEN); /* SA */ + break; + case WLAN_FC_FROMDS | WLAN_FC_TODS: + memcpy(hdr, hdr11->addr3, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr4, ETH_ALEN); /* SA */ + break; + case 0: + memcpy(hdr, hdr11->addr1, ETH_ALEN); /* DA */ + memcpy(hdr + ETH_ALEN, hdr11->addr2, ETH_ALEN); /* SA */ + break; + } + + hdr[12] = 0; /* priority */ + hdr[13] = hdr[14] = hdr[15] = 0; /* reserved */ +} + + +static int hostap_michael_mic_add(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + u8 *pos; + + if (skb_tailroom(skb) < 8 || skb->len < hdr_len) { + printk(KERN_DEBUG "Invalid packet for Michael MIC add " + "(tailroom=%d hdr_len=%d skb->len=%d)\n", + skb_tailroom(skb), hdr_len, skb->len); + return -1; + } + + michael_mic_hdr(skb, tkey->tx_hdr); + pos = skb_put(skb, 8); + if (michael_mic(tkey, &tkey->key[16], tkey->tx_hdr, + skb->data + hdr_len, skb->len - 8 - hdr_len, pos)) + return -1; + + return 0; +} + + +static void hostap_michael_mic_failure(struct net_device *dev, + struct hostap_ieee80211_hdr *hdr, + int keyidx) +{ + union iwreq_data wrqu; + char buf[128]; + + /* TODO: needed parameters: count, keyid, key type, src address, TSC */ + sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr=" + MACSTR ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", + MAC2STR(hdr->addr2)); + memset(&wrqu, 0, sizeof(wrqu)); + wrqu.data.length = strlen(buf); + wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); +} + + +static int hostap_michael_mic_verify(struct sk_buff *skb, int keyidx, + int hdr_len, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + u8 mic[8]; + + if (!tkey->key_set) + return -1; + + michael_mic_hdr(skb, tkey->rx_hdr); + if (michael_mic(tkey, &tkey->key[24], tkey->rx_hdr, + skb->data + hdr_len, skb->len - 8 - hdr_len, mic)) + return -1; + if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) { + struct hostap_ieee80211_hdr *hdr; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + printk(KERN_DEBUG "%s: Michael MIC verification failed for " + "MSDU from " MACSTR " keyidx=%d\n", + skb->dev ? skb->dev->name : "N/A", MAC2STR(hdr->addr2), + keyidx); + if (skb->dev) + hostap_michael_mic_failure(skb->dev, hdr, keyidx); + tkey->dot11RSNAStatsTKIPLocalMICFailures++; + return -1; + } + + /* Update TSC counters for RX now that the packet verification has + * completed. */ + tkey->rx_iv32 = tkey->rx_iv32_new; + tkey->rx_iv16 = tkey->rx_iv16_new; + + skb_trim(skb, skb->len - 8); + + return 0; +} + + +static int hostap_tkip_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + int keyidx; + struct crypto_tfm *tfm = tkey->tfm_michael; + struct crypto_tfm *tfm2 = tkey->tfm_arc4; + + keyidx = tkey->key_idx; + memset(tkey, 0, sizeof(*tkey)); + tkey->key_idx = keyidx; + tkey->tfm_michael = tfm; + tkey->tfm_arc4 = tfm2; + if (len == TKIP_KEY_LEN) { + memcpy(tkey->key, key, TKIP_KEY_LEN); + tkey->key_set = 1; + tkey->tx_iv16 = 1; /* TSC is initialized to 1 */ + if (seq) { + tkey->rx_iv32 = (seq[5] << 24) | (seq[4] << 16) | + (seq[3] << 8) | seq[2]; + tkey->rx_iv16 = (seq[1] << 8) | seq[0]; + } + } else if (len == 0) { + tkey->key_set = 0; + } else + return -1; + + return 0; +} + + +static int hostap_tkip_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct hostap_tkip_data *tkey = priv; + + if (len < TKIP_KEY_LEN) + return -1; + + if (!tkey->key_set) + return 0; + memcpy(key, tkey->key, TKIP_KEY_LEN); + + if (seq) { + /* Return the sequence number of the last transmitted frame. */ + u16 iv16 = tkey->tx_iv16; + u32 iv32 = tkey->tx_iv32; + if (iv16 == 0) + iv32--; + iv16--; + seq[0] = tkey->tx_iv16; + seq[1] = tkey->tx_iv16 >> 8; + seq[2] = tkey->tx_iv32; + seq[3] = tkey->tx_iv32 >> 8; + seq[4] = tkey->tx_iv32 >> 16; + seq[5] = tkey->tx_iv32 >> 24; + } + + return TKIP_KEY_LEN; +} + + +static char * hostap_tkip_print_stats(char *p, void *priv) +{ + struct hostap_tkip_data *tkip = priv; + p += sprintf(p, "key[%d] alg=TKIP key_set=%d " + "tx_pn=%02x%02x%02x%02x%02x%02x " + "rx_pn=%02x%02x%02x%02x%02x%02x " + "replays=%d icv_errors=%d local_mic_failures=%d\n", + tkip->key_idx, tkip->key_set, + (tkip->tx_iv32 >> 24) & 0xff, + (tkip->tx_iv32 >> 16) & 0xff, + (tkip->tx_iv32 >> 8) & 0xff, + tkip->tx_iv32 & 0xff, + (tkip->tx_iv16 >> 8) & 0xff, + tkip->tx_iv16 & 0xff, + (tkip->rx_iv32 >> 24) & 0xff, + (tkip->rx_iv32 >> 16) & 0xff, + (tkip->rx_iv32 >> 8) & 0xff, + tkip->rx_iv32 & 0xff, + (tkip->rx_iv16 >> 8) & 0xff, + tkip->rx_iv16 & 0xff, + tkip->dot11RSNAStatsTKIPReplays, + tkip->dot11RSNAStatsTKIPICVErrors, + tkip->dot11RSNAStatsTKIPLocalMICFailures); + return p; +} + + +static struct hostap_crypto_ops hostap_crypt_tkip = { + .name = "TKIP", + .init = hostap_tkip_init, + .deinit = hostap_tkip_deinit, + .encrypt_mpdu = hostap_tkip_encrypt, + .decrypt_mpdu = hostap_tkip_decrypt, + .encrypt_msdu = hostap_michael_mic_add, + .decrypt_msdu = hostap_michael_mic_verify, + .set_key = hostap_tkip_set_key, + .get_key = hostap_tkip_get_key, + .print_stats = hostap_tkip_print_stats, + .extra_prefix_len = 4 + 4 /* IV + ExtIV */, + .extra_postfix_len = 8 + 4 /* MIC + ICV */ +}; + + +static int __init hostap_crypto_tkip_init(void) +{ + if (hostap_register_crypto_ops(&hostap_crypt_tkip) < 0) + return -1; + + return 0; +} + + +static void __exit hostap_crypto_tkip_exit(void) +{ + hostap_unregister_crypto_ops(&hostap_crypt_tkip); +} + + +module_init(hostap_crypto_tkip_init); +module_exit(hostap_crypto_tkip_exit); diff --git a/drivers/net/wireless/hostap/hostap_crypt_wep.c b/drivers/net/wireless/hostap/hostap_crypt_wep.c new file mode 100644 index 0000000..a6783e0 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_crypt_wep.c @@ -0,0 +1,281 @@ +/* + * Host AP crypt: host-based WEP encryption implementation for Host AP driver + * + * Copyright (c) 2002-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hostap_crypt.h" + +#ifndef CONFIG_CRYPTO +#error CONFIG_CRYPTO is required to build this module. +#endif +#include +#include +#include + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Host AP crypt: WEP"); +MODULE_LICENSE("GPL"); + + +struct prism2_wep_data { + u32 iv; +#define WEP_KEY_LEN 13 + u8 key[WEP_KEY_LEN + 1]; + u8 key_len; + u8 key_idx; + struct crypto_tfm *tfm; +}; + + +static void * prism2_wep_init(int keyidx) +{ + struct prism2_wep_data *priv; + + if (!try_module_get(THIS_MODULE)) + return NULL; + + priv = (struct prism2_wep_data *) kmalloc(sizeof(*priv), GFP_ATOMIC); + if (priv == NULL) + goto fail; + memset(priv, 0, sizeof(*priv)); + priv->key_idx = keyidx; + + priv->tfm = crypto_alloc_tfm("arc4", 0); + if (priv->tfm == NULL) { + printk(KERN_DEBUG "hostap_crypt_wep: could not allocate " + "crypto API arc4\n"); + goto fail; + } + + /* start WEP IV from a random value */ + get_random_bytes(&priv->iv, 4); + + return priv; + +fail: + if (priv) { + if (priv->tfm) + crypto_free_tfm(priv->tfm); + kfree(priv); + } + module_put(THIS_MODULE); + return NULL; +} + + +static void prism2_wep_deinit(void *priv) +{ + struct prism2_wep_data *_priv = priv; + if (_priv && _priv->tfm) + crypto_free_tfm(_priv->tfm); + kfree(priv); + module_put(THIS_MODULE); +} + + +/* Perform WEP encryption on given skb that has at least 4 bytes of headroom + * for IV and 4 bytes of tailroom for ICV. Both IV and ICV will be transmitted, + * so the payload length increases with 8 bytes. + * + * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data)) + */ +static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct prism2_wep_data *wep = priv; + u32 crc, klen, len; + u8 key[WEP_KEY_LEN + 3]; + u8 *pos, *icv; + struct scatterlist sg; + + if (skb_headroom(skb) < 4 || skb_tailroom(skb) < 4 || + skb->len < hdr_len) + return -1; + + len = skb->len - hdr_len; + pos = skb_push(skb, 4); + memmove(pos, pos + 4, hdr_len); + pos += hdr_len; + + klen = 3 + wep->key_len; + + wep->iv++; + + /* Fluhrer, Mantin, and Shamir have reported weaknesses in the key + * scheduling algorithm of RC4. At least IVs (KeyByte + 3, 0xff, N) + * can be used to speedup attacks, so avoid using them. */ + if ((wep->iv & 0xff00) == 0xff00) { + u8 B = (wep->iv >> 16) & 0xff; + if (B >= 3 && B < klen) + wep->iv += 0x0100; + } + + /* Prepend 24-bit IV to RC4 key and TX frame */ + *pos++ = key[0] = (wep->iv >> 16) & 0xff; + *pos++ = key[1] = (wep->iv >> 8) & 0xff; + *pos++ = key[2] = wep->iv & 0xff; + *pos++ = wep->key_idx << 6; + + /* Copy rest of the WEP key (the secret part) */ + memcpy(key + 3, wep->key, wep->key_len); + + /* Append little-endian CRC32 and encrypt it to produce ICV */ + crc = ~crc32_le(~0, pos, len); + icv = skb_put(skb, 4); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + + crypto_cipher_setkey(wep->tfm, key, klen); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = len + 4; + crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4); + + return 0; +} + + +/* Perform WEP decryption on given buffer. Buffer includes whole WEP part of + * the frame: IV (4 bytes), encrypted payload (including SNAP header), + * ICV (4 bytes). len includes both IV and ICV. + * + * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on + * failure. If frame is OK, IV and ICV will be removed. + */ +static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) +{ + struct prism2_wep_data *wep = priv; + u32 crc, klen, plen; + u8 key[WEP_KEY_LEN + 3]; + u8 keyidx, *pos, icv[4]; + struct scatterlist sg; + + if (skb->len < hdr_len + 8) + return -1; + + pos = skb->data + hdr_len; + key[0] = *pos++; + key[1] = *pos++; + key[2] = *pos++; + keyidx = *pos++ >> 6; + if (keyidx != wep->key_idx) + return -1; + + klen = 3 + wep->key_len; + + /* Copy rest of the WEP key (the secret part) */ + memcpy(key + 3, wep->key, wep->key_len); + + /* Apply RC4 to data and compute CRC32 over decrypted data */ + plen = skb->len - hdr_len - 8; + + crypto_cipher_setkey(wep->tfm, key, klen); + sg.page = virt_to_page(pos); + sg.offset = offset_in_page(pos); + sg.length = plen + 4; + crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4); + + crc = ~crc32_le(~0, pos, plen); + icv[0] = crc; + icv[1] = crc >> 8; + icv[2] = crc >> 16; + icv[3] = crc >> 24; + if (memcmp(icv, pos + plen, 4) != 0) { + /* ICV mismatch - drop frame */ + return -2; + } + + /* Remove IV and ICV */ + memmove(skb->data + 4, skb->data, hdr_len); + skb_pull(skb, 4); + skb_trim(skb, skb->len - 4); + + return 0; +} + + +static int prism2_wep_set_key(void *key, int len, u8 *seq, void *priv) +{ + struct prism2_wep_data *wep = priv; + + if (len < 0 || len > WEP_KEY_LEN) + return -1; + + memcpy(wep->key, key, len); + wep->key_len = len; + + return 0; +} + + +static int prism2_wep_get_key(void *key, int len, u8 *seq, void *priv) +{ + struct prism2_wep_data *wep = priv; + + if (len < wep->key_len) + return -1; + + memcpy(key, wep->key, wep->key_len); + + return wep->key_len; +} + + +static char * prism2_wep_print_stats(char *p, void *priv) +{ + struct prism2_wep_data *wep = priv; + p += sprintf(p, "key[%d] alg=WEP len=%d\n", + wep->key_idx, wep->key_len); + return p; +} + + +static struct hostap_crypto_ops hostap_crypt_wep = { + .name = "WEP", + .init = prism2_wep_init, + .deinit = prism2_wep_deinit, + .encrypt_mpdu = prism2_wep_encrypt, + .decrypt_mpdu = prism2_wep_decrypt, + .encrypt_msdu = NULL, + .decrypt_msdu = NULL, + .set_key = prism2_wep_set_key, + .get_key = prism2_wep_get_key, + .print_stats = prism2_wep_print_stats, + .extra_prefix_len = 4 /* IV */, + .extra_postfix_len = 4 /* ICV */ +}; + + +static int __init hostap_crypto_wep_init(void) +{ + if (hostap_register_crypto_ops(&hostap_crypt_wep) < 0) + return -1; + + return 0; +} + + +static void __exit hostap_crypto_wep_exit(void) +{ + hostap_unregister_crypto_ops(&hostap_crypt_wep); +} + + +module_init(hostap_crypto_wep_init); +module_exit(hostap_crypto_wep_exit); diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c new file mode 100644 index 0000000..e66c797 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -0,0 +1,950 @@ +#define PRISM2_PCCARD + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "hostap_wlan.h" + + +static char *version = PRISM2_VERSION " (Jouni Malinen )"; +static dev_info_t dev_info = "hostap_cs"; +static dev_link_t *dev_list = NULL; + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN " + "cards (PC Card)."); +MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PC Card)"); +MODULE_LICENSE("GPL"); + + +static int irq_mask = 0xdeb8; +module_param(irq_mask, int, 0444); + +static int irq_list[4] = { -1 }; +module_param_array(irq_list, int, NULL, 0444); + +static int ignore_cis_vcc; +module_param(ignore_cis_vcc, int, 0444); +MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry"); + + +#ifdef PRISM2_IO_DEBUG + +static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v); + outb(v, dev->base_addr + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u8 hfa384x_inb_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u8 v; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + v = inb(dev->base_addr + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v); + outw(v, dev->base_addr + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u16 hfa384x_inw_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u16 v; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + v = inw(dev->base_addr + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +static inline void hfa384x_outsw_debug(struct net_device *dev, int a, + u8 *buf, int wc) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc); + outsw(dev->base_addr + a, buf, wc); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline void hfa384x_insw_debug(struct net_device *dev, int a, + u8 *buf, int wc) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc); + insw(dev->base_addr + a, buf, wc); + spin_unlock_irqrestore(&local->lock, flags); +} + +#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v)) +#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a)) +#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v)) +#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a)) +#define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc)) +#define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc)) + +#else /* PRISM2_IO_DEBUG */ + +#define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a)) +#define HFA384X_INB(a) inb(dev->base_addr + (a)) +#define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a)) +#define HFA384X_INW(a) inw(dev->base_addr + (a)) +#define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc) +#define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc) + +#endif /* PRISM2_IO_DEBUG */ + + +static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf, + int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + if (len / 2) + HFA384X_INSW(d_off, buf, len / 2); + pos += len / 2; + + if (len & 1) + *((char *) pos) = HFA384X_INB(d_off); + + return 0; +} + + +static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + if (len / 2) + HFA384X_OUTSW(d_off, buf, len / 2); + pos += len / 2; + + if (len & 1) + HFA384X_OUTB(*((char *) pos), d_off); + + return 0; +} + + +/* FIX: This might change at some point.. */ +#include "hostap_hw.c" + + + +static void prism2_detach(dev_link_t *link); +static void prism2_release(u_long arg); +static int prism2_event(event_t event, int priority, + event_callback_args_t *args); + + +static int prism2_pccard_card_present(local_info_t *local) +{ + if (local->link != NULL && + ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) == + (DEV_PRESENT | DEV_CONFIG))) + return 1; + return 0; +} + + +/* + * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0 + * Document No. 20-10-00058, January 2004 + * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf + */ +#define SANDISK_WLAN_ACTIVATION_OFF 0x40 +#define SANDISK_HCR_OFF 0x42 + + +static void sandisk_set_iobase(local_info_t *local) +{ + int res; + conf_reg_t reg; + + reg.Function = 0; + reg.Action = CS_WRITE; + reg.Offset = 0x10; /* 0x3f0 IO base 1 */ + reg.Value = local->link->io.BasePort1 & 0x00ff; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -" + " res=%d\n", res); + } + udelay(10); + + reg.Function = 0; + reg.Action = CS_WRITE; + reg.Offset = 0x12; /* 0x3f2 IO base 2 */ + reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -" + " res=%d\n", res); + } +} + + +static void sandisk_write_hcr(local_info_t *local, int hcr) +{ + struct net_device *dev = local->dev; + int i; + + HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF); + udelay(50); + for (i = 0; i < 10; i++) { + HFA384X_OUTB(hcr, SANDISK_HCR_OFF); + } + udelay(55); + HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF); +} + + +static int sandisk_enable_wireless(struct net_device *dev) +{ + int res, ret = 0; + conf_reg_t reg; + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + tuple_t tuple; + cisparse_t *parse = NULL; + u_char buf[64]; + + if (local->link->io.NumPorts1 < 0x42) { + /* Not enough ports to be SanDisk multi-function card */ + ret = -ENODEV; + goto done; + } + + parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL); + if (parse == NULL) { + ret = -ENOMEM; + goto done; + } + + tuple.DesiredTuple = CISTPL_MANFID; + tuple.Attributes = TUPLE_RETURN_COMMON; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + if (pcmcia_get_first_tuple(local->link->handle, &tuple) || + pcmcia_get_tuple_data(local->link->handle, &tuple) || + pcmcia_parse_tuple(local->link->handle, &tuple, parse) || + parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) { + /* No SanDisk manfid found */ + ret = -ENODEV; + goto done; + } + + tuple.DesiredTuple = CISTPL_LONGLINK_MFC; + if (pcmcia_get_first_tuple(local->link->handle, &tuple) || + pcmcia_get_tuple_data(local->link->handle, &tuple) || + pcmcia_parse_tuple(local->link->handle, &tuple, parse) || + parse->longlink_mfc.nfn < 2) { + /* No multi-function links found */ + ret = -ENODEV; + goto done; + } + + printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected" + " - using vendor-specific initialization\n", dev->name); + local->sandisk_connectplus = 1; + + reg.Function = 0; + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = COR_SOFT_RESET; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n", + dev->name, res); + goto done; + } + mdelay(5); + + reg.Function = 0; + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + /* + * Do not enable interrupts here to avoid some bogus events. Interrupts + * will be enabled during the first cor_sreset call. + */ + reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n", + dev->name, res); + goto done; + } + mdelay(5); + + sandisk_set_iobase(local); + + HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF); + udelay(10); + HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF); + udelay(10); + +done: + kfree(parse); + return ret; +} + + +static void prism2_pccard_cor_sreset(local_info_t *local) +{ + int res; + conf_reg_t reg; + + if (!prism2_pccard_card_present(local)) + return; + + reg.Function = 0; + reg.Action = CS_READ; + reg.Offset = CISREG_COR; + reg.Value = 0; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n", + res); + return; + } + printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n", + reg.Value); + + reg.Action = CS_WRITE; + reg.Value |= COR_SOFT_RESET; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n", + res); + return; + } + + mdelay(local->sandisk_connectplus ? 5 : 2); + + reg.Value &= ~COR_SOFT_RESET; + if (local->sandisk_connectplus) + reg.Value |= COR_IREQ_ENA; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n", + res); + return; + } + + mdelay(local->sandisk_connectplus ? 5 : 2); + + if (local->sandisk_connectplus) + sandisk_set_iobase(local); +} + + +static void prism2_pccard_genesis_reset(local_info_t *local, int hcr) +{ + int res; + conf_reg_t reg; + int old_cor; + + if (!prism2_pccard_card_present(local)) + return; + + if (local->sandisk_connectplus) { + sandisk_write_hcr(local, hcr); + return; + } + + reg.Function = 0; + reg.Action = CS_READ; + reg.Offset = CISREG_COR; + reg.Value = 0; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 " + "(%d)\n", res); + return; + } + printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n", + reg.Value); + old_cor = reg.Value; + + reg.Action = CS_WRITE; + reg.Value |= COR_SOFT_RESET; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 " + "(%d)\n", res); + return; + } + + mdelay(10); + + /* Setup Genesis mode */ + reg.Action = CS_WRITE; + reg.Value = hcr; + reg.Offset = CISREG_CCSR; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 " + "(%d)\n", res); + return; + } + mdelay(10); + + reg.Action = CS_WRITE; + reg.Offset = CISREG_COR; + reg.Value = old_cor & ~COR_SOFT_RESET; + res = pcmcia_access_configuration_register(local->link->handle, ®); + if (res != CS_SUCCESS) { + printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 " + "(%d)\n", res); + return; + } + + mdelay(10); +} + + +static int prism2_pccard_dev_open(local_info_t *local) +{ + local->link->open++; + return 0; +} + + +static int prism2_pccard_dev_close(local_info_t *local) +{ + if (local == NULL || local->link == NULL) + return 1; + + if (!local->link->open) { + printk(KERN_WARNING "%s: prism2_pccard_dev_close(): " + "link not open?!\n", local->dev->name); + return 1; + } + + local->link->open--; + + return 0; +} + + +static struct prism2_helper_functions prism2_pccard_funcs = +{ + .card_present = prism2_pccard_card_present, + .cor_sreset = prism2_pccard_cor_sreset, + .dev_open = prism2_pccard_dev_open, + .dev_close = prism2_pccard_dev_close, + .genesis_reset = prism2_pccard_genesis_reset, + .hw_type = HOSTAP_HW_PCCARD, +}; + + +/* allocate local data and register with CardServices + * initialize dev_link structure, but do not configure the card yet */ +static dev_link_t *prism2_attach(void) +{ + dev_link_t *link; + client_reg_t client_reg; + int ret; + + link = kmalloc(sizeof(dev_link_t), GFP_KERNEL); + if (link == NULL) + return NULL; + + memset(link, 0, sizeof(dev_link_t)); + + PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info); + link->conf.Vcc = 33; + link->conf.IntType = INT_MEMORY_AND_IO; + + /* register with CardServices */ + link->next = dev_list; + dev_list = link; + client_reg.dev_info = &dev_info; + client_reg.Attributes = INFO_IO_CLIENT; + client_reg.EventMask = CS_EVENT_CARD_INSERTION | + CS_EVENT_CARD_REMOVAL | + CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | + CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; + client_reg.event_handler = &prism2_event; + client_reg.Version = 0x0210; + client_reg.event_callback_args.client_data = link; + ret = pcmcia_register_client(&link->handle, &client_reg); + if (ret != CS_SUCCESS) { + cs_error(link->handle, RegisterClient, ret); + prism2_detach(link); + return NULL; + } + return link; +} + + +static void prism2_detach(dev_link_t *link) +{ + dev_link_t **linkp; + + PDEBUG(DEBUG_FLOW, "prism2_detach\n"); + + for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) + if (*linkp == link) + break; + if (*linkp == NULL) { + printk(KERN_WARNING "%s: Attempt to detach non-existing " + "PCMCIA client\n", dev_info); + return; + } + + if (link->state & DEV_CONFIG) { + prism2_release((u_long)link); + } + + if (link->handle) { + int res = pcmcia_deregister_client(link->handle); + if (res) { + printk("CardService(DeregisterClient) => %d\n", res); + cs_error(link->handle, DeregisterClient, res); + } + } + + *linkp = link->next; + /* release net devices */ + if (link->priv) { + prism2_free_local_data((struct net_device *) link->priv); + + } + kfree(link); +} + + +#define CS_CHECK(fn, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +#define CFG_CHECK2(fn, retf) \ +do { int ret = (retf); \ +if (ret != 0) { \ + PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \ + cs_error(link->handle, fn, ret); \ + goto next_entry; \ +} \ +} while (0) + + +/* run after a CARD_INSERTION event is received to configure the PCMCIA + * socket and make the device available to the system */ +static int prism2_config(dev_link_t *link) +{ + struct net_device *dev; + struct hostap_interface *iface; + local_info_t *local; + int ret = 1; + tuple_t tuple; + cisparse_t *parse; + int last_fn, last_ret; + u_char buf[64]; + config_info_t conf; + cistpl_cftable_entry_t dflt = { 0 }; + + PDEBUG(DEBUG_FLOW, "prism2_config()\n"); + + parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL); + if (parse == NULL) { + ret = -ENOMEM; + goto failed; + } + + tuple.DesiredTuple = CISTPL_CONFIG; + tuple.Attributes = 0; + tuple.TupleData = buf; + tuple.TupleDataMax = sizeof(buf); + tuple.TupleOffset = 0; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple)); + CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple)); + CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse)); + link->conf.ConfigBase = parse->config.base; + link->conf.Present = parse->config.rmask[0]; + + CS_CHECK(GetConfigurationInfo, + pcmcia_get_configuration_info(link->handle, &conf)); + PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info, + ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc); + link->conf.Vcc = conf.Vcc; + + /* Look for an appropriate configuration table entry in the CIS */ + tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; + CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple)); + for (;;) { + cistpl_cftable_entry_t *cfg = &(parse->cftable_entry); + CFG_CHECK2(GetTupleData, + pcmcia_get_tuple_data(link->handle, &tuple)); + CFG_CHECK2(ParseTuple, + pcmcia_parse_tuple(link->handle, &tuple, parse)); + + if (cfg->flags & CISTPL_CFTABLE_DEFAULT) + dflt = *cfg; + if (cfg->index == 0) + goto next_entry; + link->conf.ConfigIndex = cfg->index; + PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X " + "(default 0x%02X)\n", cfg->index, dflt.index); + + /* Does this card need audio output? */ + if (cfg->flags & CISTPL_CFTABLE_AUDIO) { + link->conf.Attributes |= CONF_ENABLE_SPKR; + link->conf.Status = CCSR_AUDIO_ENA; + } + + /* Use power settings for Vcc and Vpp if present */ + /* Note that the CIS values need to be rescaled */ + if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) { + if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / + 10000 && !ignore_cis_vcc) { + PDEBUG(DEBUG_EXTRA, " Vcc mismatch - skipping" + " this entry\n"); + goto next_entry; + } + } else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) { + if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] / + 10000 && !ignore_cis_vcc) { + PDEBUG(DEBUG_EXTRA, " Vcc (default) mismatch " + "- skipping this entry\n"); + goto next_entry; + } + } + + if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM)) + link->conf.Vpp1 = link->conf.Vpp2 = + cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000; + else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM)) + link->conf.Vpp1 = link->conf.Vpp2 = + dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000; + + /* Do we need to allocate an interrupt? */ + if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1) + link->conf.Attributes |= CONF_ENABLE_IRQ; + else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) { + /* At least Compaq WL200 does not have IRQInfo1 set, + * but it does not work without interrupts.. */ + printk("Config has no IRQ info, but trying to enable " + "IRQ anyway..\n"); + link->conf.Attributes |= CONF_ENABLE_IRQ; + } + + /* IO window settings */ + PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d " + "dflt.io.nwin=%d\n", + cfg->io.nwin, dflt.io.nwin); + link->io.NumPorts1 = link->io.NumPorts2 = 0; + if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) { + cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io; + link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; + PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, " + "io.base=0x%04x, len=%d\n", io->flags, + io->win[0].base, io->win[0].len); + if (!(io->flags & CISTPL_IO_8BIT)) + link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; + if (!(io->flags & CISTPL_IO_16BIT)) + link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; + link->io.IOAddrLines = io->flags & + CISTPL_IO_LINES_MASK; + link->io.BasePort1 = io->win[0].base; + link->io.NumPorts1 = io->win[0].len; + if (io->nwin > 1) { + link->io.Attributes2 = link->io.Attributes1; + link->io.BasePort2 = io->win[1].base; + link->io.NumPorts2 = io->win[1].len; + } + } + + /* This reserves IO space but doesn't actually enable it */ + CFG_CHECK2(RequestIO, + pcmcia_request_io(link->handle, &link->io)); + + /* This configuration table entry is OK */ + break; + + next_entry: + CS_CHECK(GetNextTuple, + pcmcia_get_next_tuple(link->handle, &tuple)); + } + + /* Need to allocate net_device before requesting IRQ handler */ + dev = prism2_init_local_data(&prism2_pccard_funcs, 0); + if (dev == NULL) + goto failed; + link->priv = dev; + + /* + * Allocate an interrupt line. Note that this does not assign a + * handler to the interrupt, unless the 'Handler' member of the + * irq structure is initialized. + */ + if (link->conf.Attributes & CONF_ENABLE_IRQ) { + int i; + link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; + link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID; + if (irq_list[0] == -1) + link->irq.IRQInfo2 = irq_mask; + else + for (i = 0; i < 4; i++) + link->irq.IRQInfo2 |= 1 << irq_list[i]; + link->irq.Handler = prism2_interrupt; + link->irq.Instance = dev; + CS_CHECK(RequestIRQ, + pcmcia_request_irq(link->handle, &link->irq)); + } + + /* + * This actually configures the PCMCIA socket -- setting up + * the I/O windows and the interrupt mapping, and putting the + * card and host interface into "Memory and IO" mode. + */ + CS_CHECK(RequestConfiguration, + pcmcia_request_configuration(link->handle, &link->conf)); + + dev->irq = link->irq.AssignedIRQ; + dev->base_addr = link->io.BasePort1; + + /* Finally, report what we've done */ + printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d", + dev_info, link->conf.ConfigIndex, + link->conf.Vcc / 10, link->conf.Vcc % 10); + if (link->conf.Vpp1) + printk(", Vpp %d.%d", link->conf.Vpp1 / 10, + link->conf.Vpp1 % 10); + if (link->conf.Attributes & CONF_ENABLE_IRQ) + printk(", irq %d", link->irq.AssignedIRQ); + if (link->io.NumPorts1) + printk(", io 0x%04x-0x%04x", link->io.BasePort1, + link->io.BasePort1+link->io.NumPorts1-1); + if (link->io.NumPorts2) + printk(" & 0x%04x-0x%04x", link->io.BasePort2, + link->io.BasePort2+link->io.NumPorts2-1); + printk("\n"); + + link->state |= DEV_CONFIG; + link->state &= ~DEV_CONFIG_PENDING; + + iface = netdev_priv(dev); + local = iface->local; + local->link = link; + strcpy(local->node.dev_name, dev->name); + link->dev = &local->node; + + local->shutdown = 0; + + sandisk_enable_wireless(dev); + + ret = prism2_hw_config(dev, 1); + if (!ret) { + ret = hostap_hw_ready(dev); + if (ret == 0 && local->ddev) + strcpy(local->node.dev_name, local->ddev->name); + } + kfree(parse); + return ret; + + cs_failed: + cs_error(link->handle, last_fn, last_ret); + + failed: + kfree(parse); + prism2_release((u_long)link); + return ret; +} + + +static void prism2_release(u_long arg) +{ + dev_link_t *link = (dev_link_t *)arg; + + PDEBUG(DEBUG_FLOW, "prism2_release\n"); + + if (link->priv) { + struct net_device *dev = link->priv; + struct hostap_interface *iface; + + iface = netdev_priv(dev); + if (link->state & DEV_CONFIG) + prism2_hw_shutdown(dev, 0); + iface->local->shutdown = 1; + } + + if (link->win) + pcmcia_release_window(link->win); + pcmcia_release_configuration(link->handle); + if (link->io.NumPorts1) + pcmcia_release_io(link->handle, &link->io); + if (link->irq.AssignedIRQ) + pcmcia_release_irq(link->handle, &link->irq); + + link->state &= ~DEV_CONFIG; + + PDEBUG(DEBUG_FLOW, "release - done\n"); +} + + +static int prism2_event(event_t event, int priority, + event_callback_args_t *args) +{ + dev_link_t *link = args->client_data; + struct net_device *dev = (struct net_device *) link->priv; + + switch (event) { + case CS_EVENT_CARD_INSERTION: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info); + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + if (prism2_config(link)) { + PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n"); + } + break; + + case CS_EVENT_CARD_REMOVAL: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info); + link->state &= ~DEV_PRESENT; + if (link->state & DEV_CONFIG) { + netif_stop_queue(dev); + netif_device_detach(dev); + prism2_release((u_long) link); + } + break; + + case CS_EVENT_PM_SUSPEND: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info); + link->state |= DEV_SUSPEND; + /* fall through */ + + case CS_EVENT_RESET_PHYSICAL: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info); + if (link->state & DEV_CONFIG) { + if (link->open) { + netif_stop_queue(dev); + netif_device_detach(dev); + } + prism2_suspend(dev); + pcmcia_release_configuration(link->handle); + } + break; + + case CS_EVENT_PM_RESUME: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info); + link->state &= ~DEV_SUSPEND; + /* fall through */ + + case CS_EVENT_CARD_RESET: + PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info); + if (link->state & DEV_CONFIG) { + pcmcia_request_configuration(link->handle, + &link->conf); + prism2_hw_shutdown(dev, 1); + prism2_hw_config(dev, link->open ? 0 : 1); + if (link->open) { + netif_device_attach(dev); + netif_start_queue(dev); + } + } + break; + + default: + PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n", + dev_info, event); + break; + } + return 0; +} + + +static struct pcmcia_driver hostap_driver = { + .drv = { + .name = "hostap_cs", + }, + .attach = prism2_attach, + .detach = prism2_detach, + .owner = THIS_MODULE, +}; + +static int __init init_prism2_pccard(void) +{ + printk(KERN_INFO "%s: %s\n", dev_info, version); + return pcmcia_register_driver(&hostap_driver); +} + +static void __exit exit_prism2_pccard(void) +{ + pcmcia_unregister_driver(&hostap_driver); + printk(KERN_INFO "%s: Driver unloaded\n", dev_info); +} + + +module_init(init_prism2_pccard); +module_exit(exit_prism2_pccard); diff --git a/drivers/net/wireless/hostap/hostap_download.c b/drivers/net/wireless/hostap/hostap_download.c new file mode 100644 index 0000000..ab26b52 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_download.c @@ -0,0 +1,766 @@ +static int prism2_enable_aux_port(struct net_device *dev, int enable) +{ + u16 val, reg; + int i, tries; + unsigned long flags; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + if (enable) { + PDEBUG(DEBUG_EXTRA2, "%s: no PRI f/w - assuming Aux " + "port is already enabled\n", dev->name); + } + return 0; + } + + spin_lock_irqsave(&local->cmdlock, flags); + + /* wait until busy bit is clear */ + tries = HFA384X_CMD_BUSY_TIMEOUT; + while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) { + tries--; + udelay(1); + } + if (tries == 0) { + reg = HFA384X_INW(HFA384X_CMD_OFF); + spin_unlock_irqrestore(&local->cmdlock, flags); + printk("%s: prism2_enable_aux_port - timeout - reg=0x%04x\n", + dev->name, reg); + return -ETIMEDOUT; + } + + val = HFA384X_INW(HFA384X_CONTROL_OFF); + + if (enable) { + HFA384X_OUTW(HFA384X_AUX_MAGIC0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(HFA384X_AUX_MAGIC1, HFA384X_PARAM1_OFF); + HFA384X_OUTW(HFA384X_AUX_MAGIC2, HFA384X_PARAM2_OFF); + + if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_DISABLED) + printk("prism2_enable_aux_port: was not disabled!?\n"); + val &= ~HFA384X_AUX_PORT_MASK; + val |= HFA384X_AUX_PORT_ENABLE; + } else { + HFA384X_OUTW(0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + + if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_ENABLED) + printk("prism2_enable_aux_port: was not enabled!?\n"); + val &= ~HFA384X_AUX_PORT_MASK; + val |= HFA384X_AUX_PORT_DISABLE; + } + HFA384X_OUTW(val, HFA384X_CONTROL_OFF); + + udelay(5); + + i = 10000; + while (i > 0) { + val = HFA384X_INW(HFA384X_CONTROL_OFF); + val &= HFA384X_AUX_PORT_MASK; + + if ((enable && val == HFA384X_AUX_PORT_ENABLED) || + (!enable && val == HFA384X_AUX_PORT_DISABLED)) + break; + + udelay(10); + i--; + } + + spin_unlock_irqrestore(&local->cmdlock, flags); + + if (i == 0) { + printk("prism2_enable_aux_port(%d) timed out\n", + enable); + return -ETIMEDOUT; + } + + return 0; +} + + +static int hfa384x_from_aux(struct net_device *dev, unsigned int addr, int len, + void *buf) +{ + u16 page, offset; + if (addr & 1 || len & 1) + return -1; + + page = addr >> 7; + offset = addr & 0x7f; + + HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF); + HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF); + + udelay(5); + +#ifdef PRISM2_PCI + { + u16 *pos = (u16 *) buf; + while (len > 0) { + *pos++ = HFA384X_INW_DATA(HFA384X_AUXDATA_OFF); + len -= 2; + } + } +#else /* PRISM2_PCI */ + HFA384X_INSW(HFA384X_AUXDATA_OFF, buf, len / 2); +#endif /* PRISM2_PCI */ + + return 0; +} + + +static int hfa384x_to_aux(struct net_device *dev, unsigned int addr, int len, + void *buf) +{ + u16 page, offset; + if (addr & 1 || len & 1) + return -1; + + page = addr >> 7; + offset = addr & 0x7f; + + HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF); + HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF); + + udelay(5); + +#ifdef PRISM2_PCI + { + u16 *pos = (u16 *) buf; + while (len > 0) { + HFA384X_OUTW_DATA(*pos++, HFA384X_AUXDATA_OFF); + len -= 2; + } + } +#else /* PRISM2_PCI */ + HFA384X_OUTSW(HFA384X_AUXDATA_OFF, buf, len / 2); +#endif /* PRISM2_PCI */ + + return 0; +} + + +static int prism2_pda_ok(u8 *buf) +{ + u16 *pda = (u16 *) buf; + int pos; + u16 len, pdr; + + if (buf[0] == 0xff && buf[1] == 0x00 && buf[2] == 0xff && + buf[3] == 0x00) + return 0; + + pos = 0; + while (pos + 1 < PRISM2_PDA_SIZE / 2) { + len = le16_to_cpu(pda[pos]); + pdr = le16_to_cpu(pda[pos + 1]); + if (len == 0 || pos + len > PRISM2_PDA_SIZE / 2) + return 0; + + if (pdr == 0x0000 && len == 2) { + /* PDA end found */ + return 1; + } + + pos += len + 1; + } + + return 0; +} + + +static int prism2_download_aux_dump(struct net_device *dev, + unsigned int addr, int len, u8 *buf) +{ + int res; + + prism2_enable_aux_port(dev, 1); + res = hfa384x_from_aux(dev, addr, len, buf); + prism2_enable_aux_port(dev, 0); + if (res) + return -1; + + return 0; +} + + +static u8 * prism2_read_pda(struct net_device *dev) +{ + u8 *buf; + int res, i, found = 0; +#define NUM_PDA_ADDRS 4 + unsigned int pda_addr[NUM_PDA_ADDRS] = { + 0x7f0000 /* others than HFA3841 */, + 0x3f0000 /* HFA3841 */, + 0x390000 /* apparently used in older cards */, + 0x7f0002 /* Intel PRO/Wireless 2011B (PCI) */, + }; + + buf = (u8 *) kmalloc(PRISM2_PDA_SIZE, GFP_KERNEL); + if (buf == NULL) + return NULL; + + /* Note: wlan card should be in initial state (just after init cmd) + * and no other operations should be performed concurrently. */ + + prism2_enable_aux_port(dev, 1); + + for (i = 0; i < NUM_PDA_ADDRS; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: trying to read PDA from 0x%08x", + dev->name, pda_addr[i]); + res = hfa384x_from_aux(dev, pda_addr[i], PRISM2_PDA_SIZE, buf); + if (res) + continue; + if (res == 0 && prism2_pda_ok(buf)) { + PDEBUG2(DEBUG_EXTRA2, ": OK\n"); + found = 1; + break; + } else { + PDEBUG2(DEBUG_EXTRA2, ": failed\n"); + } + } + + prism2_enable_aux_port(dev, 0); + + if (!found) { + printk(KERN_DEBUG "%s: valid PDA not found\n", dev->name); + kfree(buf); + buf = NULL; + } + + return buf; +} + + +static int prism2_download_volatile(local_info_t *local, + struct prism2_download_data *param) +{ + struct net_device *dev = local->dev; + int ret = 0, i; + u16 param0, param1; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -1; + } + + local->hw_downloading = 1; + if (local->pri_only) { + hfa384x_disable_interrupts(dev); + } else { + prism2_hw_shutdown(dev, 0); + + if (prism2_hw_init(dev, 0)) { + printk(KERN_WARNING "%s: Could not initialize card for" + " download\n", dev->name); + ret = -1; + goto out; + } + } + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_WARNING "%s: Could not enable AUX port\n", + dev->name); + ret = -1; + goto out; + } + + param0 = param->start_addr & 0xffff; + param1 = param->start_addr >> 16; + + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_ENABLE_VOLATILE << 8), + param0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n", + dev->name, param->data[i].len, param->data[i].addr); + if (hfa384x_to_aux(dev, param->data[i].addr, + param->data[i].len, param->data[i].data)) { + printk(KERN_WARNING "%s: RAM download at 0x%08x " + "(len=%d) failed\n", dev->name, + param->data[i].addr, param->data[i].len); + ret = -1; + goto out; + } + } + + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + if (hfa384x_cmd_no_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_DISABLE << 8), param0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + /* ProgMode disable causes the hardware to restart itself from the + * given starting address. Give hw some time and ACK command just in + * case restart did not happen. */ + mdelay(5); + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Disabling AUX port failed\n", + dev->name); + /* continue anyway.. restart should have taken care of this */ + } + + mdelay(5); + local->hw_downloading = 0; + if (prism2_hw_config(dev, 2)) { + printk(KERN_WARNING "%s: Card configuration after RAM " + "download failed\n", dev->name); + ret = -1; + goto out; + } + + out: + local->hw_downloading = 0; + return ret; +} + + +static int prism2_enable_genesis(local_info_t *local, int hcr) +{ + struct net_device *dev = local->dev; + u8 initseq[4] = { 0x00, 0xe1, 0xa1, 0xff }; + u8 readbuf[4]; + + printk(KERN_DEBUG "%s: test Genesis mode with HCR 0x%02x\n", + dev->name, hcr); + local->func->cor_sreset(local); + hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq); + local->func->genesis_reset(local, hcr); + + /* Readback test */ + hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf); + hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq); + hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf); + + if (memcmp(initseq, readbuf, sizeof(initseq)) == 0) { + printk(KERN_DEBUG "Readback test succeeded, HCR 0x%02x\n", + hcr); + return 0; + } else { + printk(KERN_DEBUG "Readback test failed, HCR 0x%02x " + "write %02x %02x %02x %02x read %02x %02x %02x %02x\n", + hcr, initseq[0], initseq[1], initseq[2], initseq[3], + readbuf[0], readbuf[1], readbuf[2], readbuf[3]); + return 1; + } +} + + +static int prism2_get_ram_size(local_info_t *local) +{ + int ret; + + /* Try to enable genesis mode; 0x1F for x8 SRAM or 0x0F for x16 SRAM */ + if (prism2_enable_genesis(local, 0x1f) == 0) + ret = 8; + else if (prism2_enable_genesis(local, 0x0f) == 0) + ret = 16; + else + ret = -1; + + /* Disable genesis mode */ + local->func->genesis_reset(local, ret == 16 ? 0x07 : 0x17); + + return ret; +} + + +static int prism2_download_genesis(local_info_t *local, + struct prism2_download_data *param) +{ + struct net_device *dev = local->dev; + int ram16 = 0, i; + int ret = 0; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -EBUSY; + } + + if (!local->func->genesis_reset || !local->func->cor_sreset) { + printk(KERN_INFO "%s: Genesis mode downloading not supported " + "with this hwmodel\n", dev->name); + return -EOPNOTSUPP; + } + + local->hw_downloading = 1; + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_DEBUG "%s: failed to enable AUX port\n", + dev->name); + ret = -EIO; + goto out; + } + + if (local->sram_type == -1) { + /* 0x1F for x8 SRAM or 0x0F for x16 SRAM */ + if (prism2_enable_genesis(local, 0x1f) == 0) { + ram16 = 0; + PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x8 " + "SRAM\n", dev->name); + } else if (prism2_enable_genesis(local, 0x0f) == 0) { + ram16 = 1; + PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x16 " + "SRAM\n", dev->name); + } else { + printk(KERN_DEBUG "%s: Could not initiate genesis " + "mode\n", dev->name); + ret = -EIO; + goto out; + } + } else { + if (prism2_enable_genesis(local, local->sram_type == 8 ? + 0x1f : 0x0f)) { + printk(KERN_DEBUG "%s: Failed to set Genesis " + "mode (sram_type=%d)\n", dev->name, + local->sram_type); + ret = -EIO; + goto out; + } + ram16 = local->sram_type != 8; + } + + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n", + dev->name, param->data[i].len, param->data[i].addr); + if (hfa384x_to_aux(dev, param->data[i].addr, + param->data[i].len, param->data[i].data)) { + printk(KERN_WARNING "%s: RAM download at 0x%08x " + "(len=%d) failed\n", dev->name, + param->data[i].addr, param->data[i].len); + ret = -EIO; + goto out; + } + } + + PDEBUG(DEBUG_EXTRA2, "Disable genesis mode\n"); + local->func->genesis_reset(local, ram16 ? 0x07 : 0x17); + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Failed to disable AUX port\n", + dev->name); + } + + mdelay(5); + local->hw_downloading = 0; + + PDEBUG(DEBUG_EXTRA2, "Trying to initialize card\n"); + /* + * Make sure the INIT command does not generate a command completion + * event by disabling interrupts. + */ + hfa384x_disable_interrupts(dev); + if (prism2_hw_init(dev, 1)) { + printk(KERN_DEBUG "%s: Initialization after genesis mode " + "download failed\n", dev->name); + ret = -EIO; + goto out; + } + + PDEBUG(DEBUG_EXTRA2, "Card initialized - running PRI only\n"); + if (prism2_hw_init2(dev, 1)) { + printk(KERN_DEBUG "%s: Initialization(2) after genesis mode " + "download failed\n", dev->name); + ret = -EIO; + goto out; + } + + out: + local->hw_downloading = 0; + return ret; +} + + +#ifdef PRISM2_NON_VOLATILE_DOWNLOAD +/* Note! Non-volatile downloading functionality has not yet been tested + * thoroughly and it may corrupt flash image and effectively kill the card that + * is being updated. You have been warned. */ + +static inline int prism2_download_block(struct net_device *dev, + u32 addr, u8 *data, + u32 bufaddr, int rest_len) +{ + u16 param0, param1; + int block_len; + + block_len = rest_len < 4096 ? rest_len : 4096; + + param0 = addr & 0xffff; + param1 = addr >> 16; + + HFA384X_OUTW(block_len, HFA384X_PARAM2_OFF); + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_ENABLE_NON_VOLATILE << 8), + param0)) { + printk(KERN_WARNING "%s: Flash download command execution " + "failed\n", dev->name); + return -1; + } + + if (hfa384x_to_aux(dev, bufaddr, block_len, data)) { + printk(KERN_WARNING "%s: flash download at 0x%08x " + "(len=%d) failed\n", dev->name, addr, block_len); + return -1; + } + + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_PROGRAM_NON_VOLATILE << 8), + 0)) { + printk(KERN_WARNING "%s: Flash write command execution " + "failed\n", dev->name); + return -1; + } + + return block_len; +} + + +static int prism2_download_nonvolatile(local_info_t *local, + struct prism2_download_data *dl) +{ + struct net_device *dev = local->dev; + int ret = 0, i; + struct { + u16 page; + u16 offset; + u16 len; + } dlbuffer; + u32 bufaddr; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -1; + } + + ret = local->func->get_rid(dev, HFA384X_RID_DOWNLOADBUFFER, + &dlbuffer, 6, 0); + + if (ret < 0) { + printk(KERN_WARNING "%s: Could not read download buffer " + "parameters\n", dev->name); + goto out; + } + + dlbuffer.page = le16_to_cpu(dlbuffer.page); + dlbuffer.offset = le16_to_cpu(dlbuffer.offset); + dlbuffer.len = le16_to_cpu(dlbuffer.len); + + printk(KERN_DEBUG "Download buffer: %d bytes at 0x%04x:0x%04x\n", + dlbuffer.len, dlbuffer.page, dlbuffer.offset); + + bufaddr = (dlbuffer.page << 7) + dlbuffer.offset; + + local->hw_downloading = 1; + + if (!local->pri_only) { + prism2_hw_shutdown(dev, 0); + + if (prism2_hw_init(dev, 0)) { + printk(KERN_WARNING "%s: Could not initialize card for" + " download\n", dev->name); + ret = -1; + goto out; + } + } + + hfa384x_disable_interrupts(dev); + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_WARNING "%s: Could not enable AUX port\n", + dev->name); + ret = -1; + goto out; + } + + printk(KERN_DEBUG "%s: starting flash download\n", dev->name); + for (i = 0; i < dl->num_areas; i++) { + int rest_len = dl->data[i].len; + int data_off = 0; + + while (rest_len > 0) { + int block_len; + + block_len = prism2_download_block( + dev, dl->data[i].addr + data_off, + dl->data[i].data + data_off, bufaddr, + rest_len); + + if (block_len < 0) { + ret = -1; + goto out; + } + + rest_len -= block_len; + data_off += block_len; + } + } + + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_DISABLE << 8), 0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Disabling AUX port failed\n", + dev->name); + /* continue anyway.. restart should have taken care of this */ + } + + mdelay(5); + + local->func->hw_reset(dev); + local->hw_downloading = 0; + if (prism2_hw_config(dev, 2)) { + printk(KERN_WARNING "%s: Card configuration after flash " + "download failed\n", dev->name); + ret = -1; + } else { + printk(KERN_INFO "%s: Card initialized successfully after " + "flash download\n", dev->name); + } + + out: + local->hw_downloading = 0; + return ret; +} +#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */ + + +static void prism2_download_free_data(struct prism2_download_data *dl) +{ + int i; + + if (dl == NULL) + return; + + for (i = 0; i < dl->num_areas; i++) + kfree(dl->data[i].data); + kfree(dl); +} + + +static int prism2_download(local_info_t *local, + struct prism2_download_param *param) +{ + int ret = 0; + int i; + u32 total_len = 0; + struct prism2_download_data *dl = NULL; + + printk(KERN_DEBUG "prism2_download: dl_cmd=%d start_addr=0x%08x " + "num_areas=%d\n", + param->dl_cmd, param->start_addr, param->num_areas); + + if (param->num_areas > 100) { + ret = -EINVAL; + goto out; + } + + dl = kmalloc(sizeof(*dl) + param->num_areas * + sizeof(struct prism2_download_data_area), GFP_KERNEL); + if (dl == NULL) { + ret = -ENOMEM; + goto out; + } + memset(dl, 0, sizeof(*dl) + param->num_areas * + sizeof(struct prism2_download_data_area)); + dl->dl_cmd = param->dl_cmd; + dl->start_addr = param->start_addr; + dl->num_areas = param->num_areas; + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, + " area %d: addr=0x%08x len=%d ptr=0x%p\n", + i, param->data[i].addr, param->data[i].len, + param->data[i].ptr); + + dl->data[i].addr = param->data[i].addr; + dl->data[i].len = param->data[i].len; + + total_len += param->data[i].len; + if (param->data[i].len > PRISM2_MAX_DOWNLOAD_AREA_LEN || + total_len > PRISM2_MAX_DOWNLOAD_LEN) { + ret = -E2BIG; + goto out; + } + + dl->data[i].data = kmalloc(dl->data[i].len, GFP_KERNEL); + if (dl->data[i].data == NULL) { + ret = -ENOMEM; + goto out; + } + + if (copy_from_user(dl->data[i].data, param->data[i].ptr, + param->data[i].len)) { + ret = -EFAULT; + goto out; + } + } + + switch (param->dl_cmd) { + case PRISM2_DOWNLOAD_VOLATILE: + case PRISM2_DOWNLOAD_VOLATILE_PERSISTENT: + ret = prism2_download_volatile(local, dl); + break; + case PRISM2_DOWNLOAD_VOLATILE_GENESIS: + case PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT: + ret = prism2_download_genesis(local, dl); + break; + case PRISM2_DOWNLOAD_NON_VOLATILE: +#ifdef PRISM2_NON_VOLATILE_DOWNLOAD + ret = prism2_download_nonvolatile(local, dl); +#else /* PRISM2_NON_VOLATILE_DOWNLOAD */ + printk(KERN_INFO "%s: non-volatile downloading not enabled\n", + local->dev->name); + ret = -EOPNOTSUPP; +#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */ + break; + default: + printk(KERN_DEBUG "%s: unsupported download command %d\n", + local->dev->name, param->dl_cmd); + ret = -EINVAL; + break; + }; + + out: + if (ret == 0 && dl && + param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT) { + prism2_download_free_data(local->dl_pri); + local->dl_pri = dl; + } else if (ret == 0 && dl && + param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_PERSISTENT) { + prism2_download_free_data(local->dl_sec); + local->dl_sec = dl; + } else + prism2_download_free_data(dl); + + return ret; +} diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c new file mode 100644 index 0000000..039ef7f --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -0,0 +1,3631 @@ +/* + * Host AP (software wireless LAN access point) driver for + * Intersil Prism2/2.5/3. + * + * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen + * + * Copyright (c) 2002-2004, Jouni Malinen + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. See README and COPYING for + * more details. + * + * FIX: + * - there is currently no way of associating TX packets to correct wds device + * when TX Exc/OK event occurs, so all tx_packets and some + * tx_errors/tx_dropped are added to the main netdevice; using sw_support + * field in txdesc might be used to fix this (using Alloc event to increment + * tx_packets would need some further info in txfid table) + * + * Buffer Access Path (BAP) usage: + * Prism2 cards have two separate BAPs for accessing the card memory. These + * should allow concurrent access to two different frames and the driver + * previously used BAP0 for sending data and BAP1 for receiving data. + * However, there seems to be number of issues with concurrent access and at + * least one know hardware bug in using BAP0 and BAP1 concurrently with PCI + * Prism2.5. Therefore, the driver now only uses BAP0 for moving data between + * host and card memories. BAP0 accesses are protected with local->baplock + * (spin_lock_bh) to prevent concurrent use. + */ + + +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +#include "hostap_80211.h" +#include "hostap.h" +#include "hostap_ap.h" + + +/* #define final_version */ + +static int mtu = 1500; +module_param(mtu, int, 0444); +MODULE_PARM_DESC(mtu, "Maximum transfer unit"); + +static int channel[MAX_PARM_DEVICES] = { 3, DEF_INTS }; +module_param_array(channel, int, NULL, 0444); +MODULE_PARM_DESC(channel, "Initial channel"); + +static char essid[33] = "test"; +module_param_string(essid, essid, sizeof(essid), 0444); +MODULE_PARM_DESC(essid, "Host AP's ESSID"); + +static int iw_mode[MAX_PARM_DEVICES] = { IW_MODE_MASTER, DEF_INTS }; +module_param_array(iw_mode, int, NULL, 0444); +MODULE_PARM_DESC(iw_mode, "Initial operation mode"); + +static int beacon_int[MAX_PARM_DEVICES] = { 100, DEF_INTS }; +module_param_array(beacon_int, int, NULL, 0444); +MODULE_PARM_DESC(beacon_int, "Beacon interval (1 = 1024 usec)"); + +static int dtim_period[MAX_PARM_DEVICES] = { 1, DEF_INTS }; +module_param_array(dtim_period, int, NULL, 0444); +MODULE_PARM_DESC(dtim_period, "DTIM period"); + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) +static int bus_master_threshold_rx[MAX_PARM_DEVICES] = { 100, DEF_INTS }; +module_param_array(bus_master_threshold_rx, int, NULL, 0444); +MODULE_PARM_DESC(bus_master_threshold_rx, "Packet length threshold for using " + "PCI bus master on RX"); + +static int bus_master_threshold_tx[MAX_PARM_DEVICES] = { 100, DEF_INTS }; +module_param_array(bus_master_threshold_tx, int, NULL, 0444); +MODULE_PARM_DESC(bus_master_threshold_tx, "Packet length threshold for using " + "PCI bus master on TX"); +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + +static char dev_template[16] = "wlan%d"; +module_param_string(dev_template, dev_template, sizeof(dev_template), 0444); +MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: " + "wlan%d)"); + +#ifdef final_version +#define EXTRA_EVENTS_WTERR 0 +#else +/* check WTERR events (Wait Time-out) in development versions */ +#define EXTRA_EVENTS_WTERR HFA384X_EV_WTERR +#endif + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) +#define EXTRA_EVENTS_BUS_MASTER (HFA384X_EV_PCI_M0 | HFA384X_EV_PCI_M1) +#else +#define EXTRA_EVENTS_BUS_MASTER 0 +#endif + +/* Events that will be using BAP0 */ +#define HFA384X_BAP0_EVENTS \ + (HFA384X_EV_TXEXC | HFA384X_EV_RX | HFA384X_EV_INFO | HFA384X_EV_TX) + +/* event mask, i.e., events that will result in an interrupt */ +#define HFA384X_EVENT_MASK \ + (HFA384X_BAP0_EVENTS | HFA384X_EV_ALLOC | HFA384X_EV_INFDROP | \ + HFA384X_EV_CMD | HFA384X_EV_TICK | \ + EXTRA_EVENTS_WTERR | EXTRA_EVENTS_BUS_MASTER) + +/* Default TX control flags: use 802.11 headers and request interrupt for + * failed transmits. Frames that request ACK callback, will add + * _TX_OK flag and _ALT_RTRY flag may be used to select different retry policy. + */ +#define HFA384X_TX_CTRL_FLAGS \ + (HFA384X_TX_CTRL_802_11 | HFA384X_TX_CTRL_TX_EX) + + +/* ca. 1 usec */ +#define HFA384X_CMD_BUSY_TIMEOUT 5000 +#define HFA384X_BAP_BUSY_TIMEOUT 50000 + +/* ca. 10 usec */ +#define HFA384X_CMD_COMPL_TIMEOUT 20000 +#define HFA384X_DL_COMPL_TIMEOUT 1000000 + +/* Wait times for initialization; yield to other processes to avoid busy + * waiting for long time. */ +#define HFA384X_INIT_TIMEOUT (HZ / 2) /* 500 ms */ +#define HFA384X_ALLOC_COMPL_TIMEOUT (HZ / 20) /* 50 ms */ + + +static void prism2_hw_reset(struct net_device *dev); +static void prism2_check_sta_fw_version(local_info_t *local); + +#ifdef PRISM2_DOWNLOAD_SUPPORT +/* hostap_download.c */ +static int prism2_download_aux_dump(struct net_device *dev, + unsigned int addr, int len, u8 *buf); +static u8 * prism2_read_pda(struct net_device *dev); +static int prism2_download(local_info_t *local, + struct prism2_download_param *param); +static void prism2_download_free_data(struct prism2_download_data *dl); +static int prism2_download_volatile(local_info_t *local, + struct prism2_download_data *param); +static int prism2_download_genesis(local_info_t *local, + struct prism2_download_data *param); +static int prism2_get_ram_size(local_info_t *local); +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + + + +#ifndef final_version +/* magic value written to SWSUPPORT0 reg. for detecting whether card is still + * present */ +#define HFA384X_MAGIC 0x8A32 +#endif + + +static u16 hfa384x_read_reg(struct net_device *dev, u16 reg) +{ + return HFA384X_INW(reg); +} + + +static void hfa384x_read_regs(struct net_device *dev, + struct hfa384x_regs *regs) +{ + regs->cmd = HFA384X_INW(HFA384X_CMD_OFF); + regs->evstat = HFA384X_INW(HFA384X_EVSTAT_OFF); + regs->offset0 = HFA384X_INW(HFA384X_OFFSET0_OFF); + regs->offset1 = HFA384X_INW(HFA384X_OFFSET1_OFF); + regs->swsupport0 = HFA384X_INW(HFA384X_SWSUPPORT0_OFF); +} + + +/** + * __hostap_cmd_queue_free - Free Prism2 command queue entry (private) + * @local: pointer to private Host AP driver data + * @entry: Prism2 command queue entry to be freed + * @del_req: request the entry to be removed + * + * Internal helper function for freeing Prism2 command queue entries. + * Caller must have acquired local->cmdlock before calling this function. + */ +static inline void __hostap_cmd_queue_free(local_info_t *local, + struct hostap_cmd_queue *entry, + int del_req) +{ + if (del_req) { + entry->del_req = 1; + if (!list_empty(&entry->list)) { + list_del_init(&entry->list); + local->cmd_queue_len--; + } + } + + if (atomic_dec_and_test(&entry->usecnt) && entry->del_req) + kfree(entry); +} + + +/** + * hostap_cmd_queue_free - Free Prism2 command queue entry + * @local: pointer to private Host AP driver data + * @entry: Prism2 command queue entry to be freed + * @del_req: request the entry to be removed + * + * Free a Prism2 command queue entry. + */ +static inline void hostap_cmd_queue_free(local_info_t *local, + struct hostap_cmd_queue *entry, + int del_req) +{ + unsigned long flags; + + spin_lock_irqsave(&local->cmdlock, flags); + __hostap_cmd_queue_free(local, entry, del_req); + spin_unlock_irqrestore(&local->cmdlock, flags); +} + + +/** + * prism2_clear_cmd_queue - Free all pending Prism2 command queue entries + * @local: pointer to private Host AP driver data + */ +static void prism2_clear_cmd_queue(local_info_t *local) +{ + struct list_head *ptr, *n; + unsigned long flags; + struct hostap_cmd_queue *entry; + + spin_lock_irqsave(&local->cmdlock, flags); + list_for_each_safe(ptr, n, &local->cmd_queue) { + entry = list_entry(ptr, struct hostap_cmd_queue, list); + atomic_inc(&entry->usecnt); + printk(KERN_DEBUG "%s: removed pending cmd_queue entry " + "(type=%d, cmd=0x%04x, param0=0x%04x)\n", + local->dev->name, entry->type, entry->cmd, + entry->param0); + __hostap_cmd_queue_free(local, entry, 1); + } + if (local->cmd_queue_len) { + /* This should not happen; print debug message and clear + * queue length. */ + printk(KERN_DEBUG "%s: cmd_queue_len (%d) not zero after " + "flush\n", local->dev->name, local->cmd_queue_len); + local->cmd_queue_len = 0; + } + spin_unlock_irqrestore(&local->cmdlock, flags); +} + + +/** + * hfa384x_cmd_issue - Issue a Prism2 command to the hardware + * @dev: pointer to net_device + * @entry: Prism2 command queue entry to be issued + */ +static inline int hfa384x_cmd_issue(struct net_device *dev, + struct hostap_cmd_queue *entry) +{ + struct hostap_interface *iface; + local_info_t *local; + int tries; + u16 reg; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->card_present && !local->func->card_present(local)) + return -ENODEV; + + if (entry->issued) { + printk(KERN_DEBUG "%s: driver bug - re-issuing command @%p\n", + dev->name, entry); + } + + /* wait until busy bit is clear; this should always be clear since the + * commands are serialized */ + tries = HFA384X_CMD_BUSY_TIMEOUT; + while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) { + tries--; + udelay(1); + } +#ifndef final_version + if (tries != HFA384X_CMD_BUSY_TIMEOUT) { + prism2_io_debug_error(dev, 1); + printk(KERN_DEBUG "%s: hfa384x_cmd_issue: cmd reg was busy " + "for %d usec\n", dev->name, + HFA384X_CMD_BUSY_TIMEOUT - tries); + } +#endif + if (tries == 0) { + reg = HFA384X_INW(HFA384X_CMD_OFF); + prism2_io_debug_error(dev, 2); + printk(KERN_DEBUG "%s: hfa384x_cmd_issue - timeout - " + "reg=0x%04x\n", dev->name, reg); + return -ETIMEDOUT; + } + + /* write command */ + spin_lock_irqsave(&local->cmdlock, flags); + HFA384X_OUTW(entry->param0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(entry->param1, HFA384X_PARAM1_OFF); + HFA384X_OUTW(entry->cmd, HFA384X_CMD_OFF); + entry->issued = 1; + spin_unlock_irqrestore(&local->cmdlock, flags); + + return 0; +} + + +/** + * hfa384x_cmd - Issue a Prism2 command and wait (sleep) for completion + * @dev: pointer to net_device + * @cmd: Prism2 command code (HFA384X_CMD_CODE_*) + * @param0: value for Param0 register + * @param1: value for Param1 register (pointer; %NULL if not used) + * @resp0: pointer for Resp0 data or %NULL if Resp0 is not needed + * + * Issue given command (possibly after waiting in command queue) and sleep + * until the command is completed (or timed out or interrupted). This can be + * called only from user process context. + */ +static int hfa384x_cmd(struct net_device *dev, u16 cmd, u16 param0, + u16 *param1, u16 *resp0) +{ + struct hostap_interface *iface; + local_info_t *local; + int err, res, issue, issued = 0; + unsigned long flags; + struct hostap_cmd_queue *entry; + DECLARE_WAITQUEUE(wait, current); + + iface = netdev_priv(dev); + local = iface->local; + + if (in_interrupt()) { + printk(KERN_DEBUG "%s: hfa384x_cmd called from interrupt " + "context\n", dev->name); + return -1; + } + + if (local->cmd_queue_len >= HOSTAP_CMD_QUEUE_MAX_LEN) { + printk(KERN_DEBUG "%s: hfa384x_cmd: cmd_queue full\n", + dev->name); + return -1; + } + + if (signal_pending(current)) + return -EINTR; + + entry = (struct hostap_cmd_queue *) + kmalloc(sizeof(*entry), GFP_ATOMIC); + if (entry == NULL) { + printk(KERN_DEBUG "%s: hfa384x_cmd - kmalloc failed\n", + dev->name); + return -ENOMEM; + } + memset(entry, 0, sizeof(*entry)); + atomic_set(&entry->usecnt, 1); + entry->type = CMD_SLEEP; + entry->cmd = cmd; + entry->param0 = param0; + if (param1) + entry->param1 = *param1; + init_waitqueue_head(&entry->compl); + + /* prepare to wait for command completion event, but do not sleep yet + */ + add_wait_queue(&entry->compl, &wait); + set_current_state(TASK_INTERRUPTIBLE); + + spin_lock_irqsave(&local->cmdlock, flags); + issue = list_empty(&local->cmd_queue); + if (issue) + entry->issuing = 1; + list_add_tail(&entry->list, &local->cmd_queue); + local->cmd_queue_len++; + spin_unlock_irqrestore(&local->cmdlock, flags); + + err = 0; + if (!issue) + goto wait_completion; + + if (signal_pending(current)) + err = -EINTR; + + if (!err) { + if (hfa384x_cmd_issue(dev, entry)) + err = -ETIMEDOUT; + else + issued = 1; + } + + wait_completion: + if (!err && entry->type != CMD_COMPLETED) { + /* sleep until command is completed or timed out */ + res = schedule_timeout(2 * HZ); + } else + res = -1; + + if (!err && signal_pending(current)) + err = -EINTR; + + if (err && issued) { + /* the command was issued, so a CmdCompl event should occur + * soon; however, there's a pending signal and + * schedule_timeout() would be interrupted; wait a short period + * of time to avoid removing entry from the list before + * CmdCompl event */ + udelay(300); + } + + set_current_state(TASK_RUNNING); + remove_wait_queue(&entry->compl, &wait); + + /* If entry->list is still in the list, it must be removed + * first and in this case prism2_cmd_ev() does not yet have + * local reference to it, and the data can be kfree()'d + * here. If the command completion event is still generated, + * it will be assigned to next (possibly) pending command, but + * the driver will reset the card anyway due to timeout + * + * If the entry is not in the list prism2_cmd_ev() has a local + * reference to it, but keeps cmdlock as long as the data is + * needed, so the data can be kfree()'d here. */ + + /* FIX: if the entry->list is in the list, it has not been completed + * yet, so removing it here is somewhat wrong.. this could cause + * references to freed memory and next list_del() causing NULL pointer + * dereference.. it would probably be better to leave the entry in the + * list and the list should be emptied during hw reset */ + + spin_lock_irqsave(&local->cmdlock, flags); + if (!list_empty(&entry->list)) { + printk(KERN_DEBUG "%s: hfa384x_cmd: entry still in list? " + "(entry=%p, type=%d, res=%d)\n", dev->name, entry, + entry->type, res); + list_del_init(&entry->list); + local->cmd_queue_len--; + } + spin_unlock_irqrestore(&local->cmdlock, flags); + + if (err) { + printk(KERN_DEBUG "%s: hfa384x_cmd: interrupted; err=%d\n", + dev->name, err); + res = err; + goto done; + } + + if (entry->type != CMD_COMPLETED) { + u16 reg = HFA384X_INW(HFA384X_EVSTAT_OFF); + printk(KERN_DEBUG "%s: hfa384x_cmd: command was not " + "completed (res=%d, entry=%p, type=%d, cmd=0x%04x, " + "param0=0x%04x, EVSTAT=%04x INTEN=%04x)\n", dev->name, + res, entry, entry->type, entry->cmd, entry->param0, reg, + HFA384X_INW(HFA384X_INTEN_OFF)); + if (reg & HFA384X_EV_CMD) { + /* Command completion event is pending, but the + * interrupt was not delivered - probably an issue + * with pcmcia-cs configuration. */ + printk(KERN_WARNING "%s: interrupt delivery does not " + "seem to work\n", dev->name); + } + prism2_io_debug_error(dev, 3); + res = -ETIMEDOUT; + goto done; + } + + if (resp0 != NULL) + *resp0 = entry->resp0; +#ifndef final_version + if (entry->res) { + printk(KERN_DEBUG "%s: CMD=0x%04x => res=0x%02x, " + "resp0=0x%04x\n", + dev->name, cmd, entry->res, entry->resp0); + } +#endif /* final_version */ + + res = entry->res; + done: + hostap_cmd_queue_free(local, entry, 1); + return res; +} + + +/** + * hfa384x_cmd_callback - Issue a Prism2 command; callback when completed + * @dev: pointer to net_device + * @cmd: Prism2 command code (HFA384X_CMD_CODE_*) + * @param0: value for Param0 register + * @callback: command completion callback function (%NULL = no callback) + * @context: data pointer to be given to callback function + * + * Issue given command (possibly after waiting in command queue) and use + * callback function to indicate command completion. This can be called both + * from user and interrupt context. The callback function will be called in + * hardware IRQ context. It can be %NULL, when no function is called when + * command is completed. + */ +static int hfa384x_cmd_callback(struct net_device *dev, u16 cmd, u16 param0, + void (*callback)(struct net_device *dev, + void *context, u16 resp0, + u16 status), + void *context) +{ + struct hostap_interface *iface; + local_info_t *local; + int issue, ret; + unsigned long flags; + struct hostap_cmd_queue *entry; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->cmd_queue_len >= HOSTAP_CMD_QUEUE_MAX_LEN + 2) { + printk(KERN_DEBUG "%s: hfa384x_cmd: cmd_queue full\n", + dev->name); + return -1; + } + + entry = (struct hostap_cmd_queue *) + kmalloc(sizeof(*entry), GFP_ATOMIC); + if (entry == NULL) { + printk(KERN_DEBUG "%s: hfa384x_cmd_callback - kmalloc " + "failed\n", dev->name); + return -ENOMEM; + } + memset(entry, 0, sizeof(*entry)); + atomic_set(&entry->usecnt, 1); + entry->type = CMD_CALLBACK; + entry->cmd = cmd; + entry->param0 = param0; + entry->callback = callback; + entry->context = context; + + spin_lock_irqsave(&local->cmdlock, flags); + issue = list_empty(&local->cmd_queue); + if (issue) + entry->issuing = 1; + list_add_tail(&entry->list, &local->cmd_queue); + local->cmd_queue_len++; + spin_unlock_irqrestore(&local->cmdlock, flags); + + if (issue && hfa384x_cmd_issue(dev, entry)) + ret = -ETIMEDOUT; + else + ret = 0; + + hostap_cmd_queue_free(local, entry, ret); + + return ret; +} + + +/** + * __hfa384x_cmd_no_wait - Issue a Prism2 command (private) + * @dev: pointer to net_device + * @cmd: Prism2 command code (HFA384X_CMD_CODE_*) + * @param0: value for Param0 register + * @io_debug_num: I/O debug error number + * + * Shared helper function for hfa384x_cmd_wait() and hfa384x_cmd_no_wait(). + */ +static int __hfa384x_cmd_no_wait(struct net_device *dev, u16 cmd, u16 param0, + int io_debug_num) +{ + int tries; + u16 reg; + + /* wait until busy bit is clear; this should always be clear since the + * commands are serialized */ + tries = HFA384X_CMD_BUSY_TIMEOUT; + while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) { + tries--; + udelay(1); + } + if (tries == 0) { + reg = HFA384X_INW(HFA384X_CMD_OFF); + prism2_io_debug_error(dev, io_debug_num); + printk(KERN_DEBUG "%s: __hfa384x_cmd_no_wait(%d) - timeout - " + "reg=0x%04x\n", dev->name, io_debug_num, reg); + return -ETIMEDOUT; + } + + /* write command */ + HFA384X_OUTW(param0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(cmd, HFA384X_CMD_OFF); + + return 0; +} + + +/** + * hfa384x_cmd_wait - Issue a Prism2 command and busy wait for completion + * @dev: pointer to net_device + * @cmd: Prism2 command code (HFA384X_CMD_CODE_*) + * @param0: value for Param0 register + */ +static int hfa384x_cmd_wait(struct net_device *dev, u16 cmd, u16 param0) +{ + int res, tries; + u16 reg; + + res = __hfa384x_cmd_no_wait(dev, cmd, param0, 4); + if (res) + return res; + + /* wait for command completion */ + if ((cmd & HFA384X_CMDCODE_MASK) == HFA384X_CMDCODE_DOWNLOAD) + tries = HFA384X_DL_COMPL_TIMEOUT; + else + tries = HFA384X_CMD_COMPL_TIMEOUT; + + while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD) && + tries > 0) { + tries--; + udelay(10); + } + if (tries == 0) { + reg = HFA384X_INW(HFA384X_EVSTAT_OFF); + prism2_io_debug_error(dev, 5); + printk(KERN_DEBUG "%s: hfa384x_cmd_wait - timeout2 - " + "reg=0x%04x\n", dev->name, reg); + return -ETIMEDOUT; + } + + res = (HFA384X_INW(HFA384X_STATUS_OFF) & + (BIT(14) | BIT(13) | BIT(12) | BIT(11) | BIT(10) | BIT(9) | + BIT(8))) >> 8; +#ifndef final_version + if (res) { + printk(KERN_DEBUG "%s: CMD=0x%04x => res=0x%02x\n", + dev->name, cmd, res); + } +#endif + + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + + return res; +} + + +/** + * hfa384x_cmd_no_wait - Issue a Prism2 command; do not wait for completion + * @dev: pointer to net_device + * @cmd: Prism2 command code (HFA384X_CMD_CODE_*) + * @param0: value for Param0 register + */ +static inline int hfa384x_cmd_no_wait(struct net_device *dev, u16 cmd, + u16 param0) +{ + return __hfa384x_cmd_no_wait(dev, cmd, param0, 6); +} + + +/** + * prism2_cmd_ev - Prism2 command completion event handler + * @dev: pointer to net_device + * + * Interrupt handler for command completion events. Called by the main + * interrupt handler in hardware IRQ context. Read Resp0 and status registers + * from the hardware and ACK the event. Depending on the issued command type + * either wake up the sleeping process that is waiting for command completion + * or call the callback function. Issue the next command, if one is pending. + */ +static void prism2_cmd_ev(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hostap_cmd_queue *entry = NULL; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock(&local->cmdlock); + if (!list_empty(&local->cmd_queue)) { + entry = list_entry(local->cmd_queue.next, + struct hostap_cmd_queue, list); + atomic_inc(&entry->usecnt); + list_del_init(&entry->list); + local->cmd_queue_len--; + + if (!entry->issued) { + printk(KERN_DEBUG "%s: Command completion event, but " + "cmd not issued\n", dev->name); + __hostap_cmd_queue_free(local, entry, 1); + entry = NULL; + } + } + spin_unlock(&local->cmdlock); + + if (!entry) { + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + printk(KERN_DEBUG "%s: Command completion event, but no " + "pending commands\n", dev->name); + return; + } + + entry->resp0 = HFA384X_INW(HFA384X_RESP0_OFF); + entry->res = (HFA384X_INW(HFA384X_STATUS_OFF) & + (BIT(14) | BIT(13) | BIT(12) | BIT(11) | BIT(10) | + BIT(9) | BIT(8))) >> 8; + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + + /* TODO: rest of the CmdEv handling could be moved to tasklet */ + if (entry->type == CMD_SLEEP) { + entry->type = CMD_COMPLETED; + wake_up_interruptible(&entry->compl); + } else if (entry->type == CMD_CALLBACK) { + if (entry->callback) + entry->callback(dev, entry->context, entry->resp0, + entry->res); + } else { + printk(KERN_DEBUG "%s: Invalid command completion type %d\n", + dev->name, entry->type); + } + hostap_cmd_queue_free(local, entry, 1); + + /* issue next command, if pending */ + entry = NULL; + spin_lock(&local->cmdlock); + if (!list_empty(&local->cmd_queue)) { + entry = list_entry(local->cmd_queue.next, + struct hostap_cmd_queue, list); + if (entry->issuing) { + /* hfa384x_cmd() has already started issuing this + * command, so do not start here */ + entry = NULL; + } + if (entry) + atomic_inc(&entry->usecnt); + } + spin_unlock(&local->cmdlock); + + if (entry) { + /* issue next command; if command issuing fails, remove the + * entry from cmd_queue */ + int res = hfa384x_cmd_issue(dev, entry); + spin_lock(&local->cmdlock); + __hostap_cmd_queue_free(local, entry, res); + spin_unlock(&local->cmdlock); + } +} + + +static inline int hfa384x_wait_offset(struct net_device *dev, u16 o_off) +{ + int tries = HFA384X_BAP_BUSY_TIMEOUT; + int res = HFA384X_INW(o_off) & HFA384X_OFFSET_BUSY; + + while (res && tries > 0) { + tries--; + udelay(1); + res = HFA384X_INW(o_off) & HFA384X_OFFSET_BUSY; + } + return res; +} + + +/* Offset must be even */ +static int hfa384x_setup_bap(struct net_device *dev, u16 bap, u16 id, + int offset) +{ + u16 o_off, s_off; + int ret = 0; + + if (offset % 2 || bap > 1) + return -EINVAL; + + if (bap == BAP1) { + o_off = HFA384X_OFFSET1_OFF; + s_off = HFA384X_SELECT1_OFF; + } else { + o_off = HFA384X_OFFSET0_OFF; + s_off = HFA384X_SELECT0_OFF; + } + + if (hfa384x_wait_offset(dev, o_off)) { + prism2_io_debug_error(dev, 7); + printk(KERN_DEBUG "%s: hfa384x_setup_bap - timeout before\n", + dev->name); + ret = -ETIMEDOUT; + goto out; + } + + HFA384X_OUTW(id, s_off); + HFA384X_OUTW(offset, o_off); + + if (hfa384x_wait_offset(dev, o_off)) { + prism2_io_debug_error(dev, 8); + printk(KERN_DEBUG "%s: hfa384x_setup_bap - timeout after\n", + dev->name); + ret = -ETIMEDOUT; + goto out; + } +#ifndef final_version + if (HFA384X_INW(o_off) & HFA384X_OFFSET_ERR) { + prism2_io_debug_error(dev, 9); + printk(KERN_DEBUG "%s: hfa384x_setup_bap - offset error " + "(%d,0x04%x,%d); reg=0x%04x\n", + dev->name, bap, id, offset, HFA384X_INW(o_off)); + ret = -EINVAL; + } +#endif + + out: + return ret; +} + + +static int hfa384x_get_rid(struct net_device *dev, u16 rid, void *buf, int len, + int exact_len) +{ + struct hostap_interface *iface; + local_info_t *local; + int res, rlen = 0; + struct hfa384x_rid_hdr rec; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + printk(KERN_DEBUG "%s: cannot get RID %04x (len=%d) - no PRI " + "f/w\n", dev->name, rid, len); + return -ENOTTY; /* Well.. not really correct, but return + * something unique enough.. */ + } + + if ((local->func->card_present && !local->func->card_present(local)) || + local->hw_downloading) + return -ENODEV; + + res = down_interruptible(&local->rid_bap_sem); + if (res) + return res; + + res = hfa384x_cmd(dev, HFA384X_CMDCODE_ACCESS, rid, NULL, NULL); + if (res) { + printk(KERN_DEBUG "%s: hfa384x_get_rid: CMDCODE_ACCESS failed " + "(res=%d, rid=%04x, len=%d)\n", + dev->name, res, rid, len); + up(&local->rid_bap_sem); + return res; + } + + spin_lock_bh(&local->baplock); + + res = hfa384x_setup_bap(dev, BAP0, rid, 0); + if (!res) + res = hfa384x_from_bap(dev, BAP0, &rec, sizeof(rec)); + + if (le16_to_cpu(rec.len) == 0) { + /* RID not available */ + res = -ENODATA; + } + + rlen = (le16_to_cpu(rec.len) - 1) * 2; + if (!res && exact_len && rlen != len) { + printk(KERN_DEBUG "%s: hfa384x_get_rid - RID len mismatch: " + "rid=0x%04x, len=%d (expected %d)\n", + dev->name, rid, rlen, len); + res = -ENODATA; + } + + if (!res) + res = hfa384x_from_bap(dev, BAP0, buf, len); + + spin_unlock_bh(&local->baplock); + up(&local->rid_bap_sem); + + if (res) { + if (res != -ENODATA) + printk(KERN_DEBUG "%s: hfa384x_get_rid (rid=%04x, " + "len=%d) - failed - res=%d\n", dev->name, rid, + len, res); + if (res == -ETIMEDOUT) + prism2_hw_reset(dev); + return res; + } + + return rlen; +} + + +static int hfa384x_set_rid(struct net_device *dev, u16 rid, void *buf, int len) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_rid_hdr rec; + int res; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + printk(KERN_DEBUG "%s: cannot set RID %04x (len=%d) - no PRI " + "f/w\n", dev->name, rid, len); + return -ENOTTY; /* Well.. not really correct, but return + * something unique enough.. */ + } + + if ((local->func->card_present && !local->func->card_present(local)) || + local->hw_downloading) + return -ENODEV; + + rec.rid = cpu_to_le16(rid); + /* RID len in words and +1 for rec.rid */ + rec.len = cpu_to_le16(len / 2 + len % 2 + 1); + + res = down_interruptible(&local->rid_bap_sem); + if (res) + return res; + + spin_lock_bh(&local->baplock); + res = hfa384x_setup_bap(dev, BAP0, rid, 0); + if (!res) + res = hfa384x_to_bap(dev, BAP0, &rec, sizeof(rec)); + if (!res) + res = hfa384x_to_bap(dev, BAP0, buf, len); + spin_unlock_bh(&local->baplock); + + if (res) { + printk(KERN_DEBUG "%s: hfa384x_set_rid (rid=%04x, len=%d) - " + "failed - res=%d\n", dev->name, rid, len, res); + up(&local->rid_bap_sem); + return res; + } + + res = hfa384x_cmd(dev, HFA384X_CMDCODE_ACCESS_WRITE, rid, NULL, NULL); + up(&local->rid_bap_sem); + if (res) { + printk(KERN_DEBUG "%s: hfa384x_set_rid: CMDCODE_ACCESS_WRITE " + "failed (res=%d, rid=%04x, len=%d)\n", + dev->name, res, rid, len); + return res; + } + + if (res == -ETIMEDOUT) + prism2_hw_reset(dev); + + return res; +} + + +static void hfa384x_disable_interrupts(struct net_device *dev) +{ + /* disable interrupts and clear event status */ + HFA384X_OUTW(0, HFA384X_INTEN_OFF); + HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF); +} + + +static void hfa384x_enable_interrupts(struct net_device *dev) +{ + /* ack pending events and enable interrupts from selected events */ + HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF); + HFA384X_OUTW(HFA384X_EVENT_MASK, HFA384X_INTEN_OFF); +} + + +static void hfa384x_events_no_bap0(struct net_device *dev) +{ + HFA384X_OUTW(HFA384X_EVENT_MASK & ~HFA384X_BAP0_EVENTS, + HFA384X_INTEN_OFF); +} + + +static void hfa384x_events_all(struct net_device *dev) +{ + HFA384X_OUTW(HFA384X_EVENT_MASK, HFA384X_INTEN_OFF); +} + + +static void hfa384x_events_only_cmd(struct net_device *dev) +{ + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_INTEN_OFF); +} + + +static u16 hfa384x_allocate_fid(struct net_device *dev, int len) +{ + u16 fid; + unsigned long delay; + + /* FIX: this could be replace with hfa384x_cmd() if the Alloc event + * below would be handled like CmdCompl event (sleep here, wake up from + * interrupt handler */ + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_ALLOC, len)) { + printk(KERN_DEBUG "%s: cannot allocate fid, len=%d\n", + dev->name, len); + return 0xffff; + } + + delay = jiffies + HFA384X_ALLOC_COMPL_TIMEOUT; + while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_ALLOC) && + time_before(jiffies, delay)) + yield(); + if (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_ALLOC)) { + printk("%s: fid allocate, len=%d - timeout\n", dev->name, len); + return 0xffff; + } + + fid = HFA384X_INW(HFA384X_ALLOCFID_OFF); + HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF); + + return fid; +} + + +static int prism2_reset_port(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int res; + + iface = netdev_priv(dev); + local = iface->local; + + if (!local->dev_enabled) + return 0; + + res = hfa384x_cmd(dev, HFA384X_CMDCODE_DISABLE, 0, + NULL, NULL); + if (res) + printk(KERN_DEBUG "%s: reset port failed to disable port\n", + dev->name); + else { + res = hfa384x_cmd(dev, HFA384X_CMDCODE_ENABLE, 0, + NULL, NULL); + if (res) + printk(KERN_DEBUG "%s: reset port failed to enable " + "port\n", dev->name); + } + + /* It looks like at least some STA firmware versions reset + * fragmentation threshold back to 2346 after enable command. Restore + * the configured value, if it differs from this default. */ + if (local->fragm_threshold != 2346 && + hostap_set_word(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, + local->fragm_threshold)) { + printk(KERN_DEBUG "%s: failed to restore fragmentation " + "threshold (%d) after Port0 enable\n", + dev->name, local->fragm_threshold); + } + + return res; +} + + +static int prism2_get_version_info(struct net_device *dev, u16 rid, + const char *txt) +{ + struct hfa384x_comp_ident comp; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + /* PRI f/w not yet available - cannot read RIDs */ + return -1; + } + if (hfa384x_get_rid(dev, rid, &comp, sizeof(comp), 1) < 0) { + printk(KERN_DEBUG "Could not get RID for component %s\n", txt); + return -1; + } + + printk(KERN_INFO "%s: %s: id=0x%02x v%d.%d.%d\n", dev->name, txt, + __le16_to_cpu(comp.id), __le16_to_cpu(comp.major), + __le16_to_cpu(comp.minor), __le16_to_cpu(comp.variant)); + return 0; +} + + +static int prism2_setup_rids(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 tmp; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + hostap_set_word(dev, HFA384X_RID_TICKTIME, 2000); + + if (!local->fw_ap) { + tmp = hostap_get_porttype(local); + ret = hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, tmp); + if (ret) { + printk("%s: Port type setting to %d failed\n", + dev->name, tmp); + goto fail; + } + } + + /* Setting SSID to empty string seems to kill the card in Host AP mode + */ + if (local->iw_mode != IW_MODE_MASTER || local->essid[0] != '\0') { + ret = hostap_set_string(dev, HFA384X_RID_CNFOWNSSID, + local->essid); + if (ret) { + printk("%s: AP own SSID setting failed\n", dev->name); + goto fail; + } + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFMAXDATALEN, + PRISM2_DATA_MAXLEN); + if (ret) { + printk("%s: MAC data length setting to %d failed\n", + dev->name, PRISM2_DATA_MAXLEN); + goto fail; + } + + if (hfa384x_get_rid(dev, HFA384X_RID_CHANNELLIST, &tmp, 2, 1) < 0) { + printk("%s: Channel list read failed\n", dev->name); + ret = -EINVAL; + goto fail; + } + local->channel_mask = __le16_to_cpu(tmp); + + if (local->channel < 1 || local->channel > 14 || + !(local->channel_mask & (1 << (local->channel - 1)))) { + printk(KERN_WARNING "%s: Channel setting out of range " + "(%d)!\n", dev->name, local->channel); + ret = -EBUSY; + goto fail; + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFOWNCHANNEL, local->channel); + if (ret) { + printk("%s: Channel setting to %d failed\n", + dev->name, local->channel); + goto fail; + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFBEACONINT, + local->beacon_int); + if (ret) { + printk("%s: Beacon interval setting to %d failed\n", + dev->name, local->beacon_int); + /* this may fail with Symbol/Lucent firmware */ + if (ret == -ETIMEDOUT) + goto fail; + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFOWNDTIMPERIOD, + local->dtim_period); + if (ret) { + printk("%s: DTIM period setting to %d failed\n", + dev->name, local->dtim_period); + /* this may fail with Symbol/Lucent firmware */ + if (ret == -ETIMEDOUT) + goto fail; + } + + ret = hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE, + local->is_promisc); + if (ret) + printk(KERN_INFO "%s: Setting promiscuous mode (%d) failed\n", + dev->name, local->is_promisc); + + if (!local->fw_ap) { + ret = hostap_set_string(dev, HFA384X_RID_CNFDESIREDSSID, + local->essid); + if (ret) { + printk("%s: Desired SSID setting failed\n", dev->name); + goto fail; + } + } + + /* Setup TXRateControl, defaults to allow use of 1, 2, 5.5, and + * 11 Mbps in automatic TX rate fallback and 1 and 2 Mbps as basic + * rates */ + if (local->tx_rate_control == 0) { + local->tx_rate_control = + HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS | + HFA384X_RATES_5MBPS | + HFA384X_RATES_11MBPS; + } + if (local->basic_rates == 0) + local->basic_rates = HFA384X_RATES_1MBPS | HFA384X_RATES_2MBPS; + + if (!local->fw_ap) { + ret = hostap_set_word(dev, HFA384X_RID_TXRATECONTROL, + local->tx_rate_control); + if (ret) { + printk("%s: TXRateControl setting to %d failed\n", + dev->name, local->tx_rate_control); + goto fail; + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFSUPPORTEDRATES, + local->tx_rate_control); + if (ret) { + printk("%s: cnfSupportedRates setting to %d failed\n", + dev->name, local->tx_rate_control); + } + + ret = hostap_set_word(dev, HFA384X_RID_CNFBASICRATES, + local->basic_rates); + if (ret) { + printk("%s: cnfBasicRates setting to %d failed\n", + dev->name, local->basic_rates); + } + + ret = hostap_set_word(dev, HFA384X_RID_CREATEIBSS, 1); + if (ret) { + printk("%s: Create IBSS setting to 1 failed\n", + dev->name); + } + } + + if (local->name_set) + (void) hostap_set_string(dev, HFA384X_RID_CNFOWNNAME, + local->name); + + if (hostap_set_encryption(local)) { + printk(KERN_INFO "%s: could not configure encryption\n", + dev->name); + } + + (void) hostap_set_antsel(local); + + if (hostap_set_roaming(local)) { + printk(KERN_INFO "%s: could not set host roaming\n", + dev->name); + } + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,6,3) && + hostap_set_word(dev, HFA384X_RID_CNFENHSECURITY, local->enh_sec)) + printk(KERN_INFO "%s: cnfEnhSecurity setting to 0x%x failed\n", + dev->name, local->enh_sec); + + /* 32-bit tallies were added in STA f/w 0.8.0, but they were apparently + * not working correctly (last seven counters report bogus values). + * This has been fixed in 0.8.2, so enable 32-bit tallies only + * beginning with that firmware version. Another bug fix for 32-bit + * tallies in 1.4.0; should 16-bit tallies be used for some other + * versions, too? */ + if (local->sta_fw_ver >= PRISM2_FW_VER(0,8,2)) { + if (hostap_set_word(dev, HFA384X_RID_CNFTHIRTY2TALLY, 1)) { + printk(KERN_INFO "%s: cnfThirty2Tally setting " + "failed\n", dev->name); + local->tallies32 = 0; + } else + local->tallies32 = 1; + } else + local->tallies32 = 0; + + hostap_set_auth_algs(local); + + if (hostap_set_word(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, + local->fragm_threshold)) { + printk(KERN_INFO "%s: setting FragmentationThreshold to %d " + "failed\n", dev->name, local->fragm_threshold); + } + + if (hostap_set_word(dev, HFA384X_RID_RTSTHRESHOLD, + local->rts_threshold)) { + printk(KERN_INFO "%s: setting RTSThreshold to %d failed\n", + dev->name, local->rts_threshold); + } + + if (local->manual_retry_count >= 0 && + hostap_set_word(dev, HFA384X_RID_CNFALTRETRYCOUNT, + local->manual_retry_count)) { + printk(KERN_INFO "%s: setting cnfAltRetryCount to %d failed\n", + dev->name, local->manual_retry_count); + } + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1) && + hfa384x_get_rid(dev, HFA384X_RID_CNFDBMADJUST, &tmp, 2, 1) == 2) { + local->rssi_to_dBm = le16_to_cpu(tmp); + } + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,7,0) && local->wpa && + hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, 1)) { + printk(KERN_INFO "%s: setting ssnHandlingMode to 1 failed\n", + dev->name); + } + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,7,0) && local->generic_elem && + hfa384x_set_rid(dev, HFA384X_RID_GENERICELEMENT, + local->generic_elem, local->generic_elem_len)) { + printk(KERN_INFO "%s: setting genericElement failed\n", + dev->name); + } + + fail: + return ret; +} + + +static int prism2_hw_init(struct net_device *dev, int initial) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret, first = 1; + unsigned long start, delay; + + PDEBUG(DEBUG_FLOW, "prism2_hw_init()\n"); + + iface = netdev_priv(dev); + local = iface->local; + + clear_bit(HOSTAP_BITS_TRANSMIT, &local->bits); + + init: + /* initialize HFA 384x */ + ret = hfa384x_cmd_no_wait(dev, HFA384X_CMDCODE_INIT, 0); + if (ret) { + printk(KERN_INFO "%s: first command failed - assuming card " + "does not have primary firmware\n", dev_info); + } + + if (first && (HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD)) { + /* EvStat has Cmd bit set in some cases, so retry once if no + * wait was needed */ + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + printk(KERN_DEBUG "%s: init command completed too quickly - " + "retrying\n", dev->name); + first = 0; + goto init; + } + + start = jiffies; + delay = jiffies + HFA384X_INIT_TIMEOUT; + while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD) && + time_before(jiffies, delay)) + yield(); + if (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD)) { + printk(KERN_DEBUG "%s: assuming no Primary image in " + "flash - card initialization not completed\n", + dev_info); + local->no_pri = 1; +#ifdef PRISM2_DOWNLOAD_SUPPORT + if (local->sram_type == -1) + local->sram_type = prism2_get_ram_size(local); +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + return 1; + } + local->no_pri = 0; + printk(KERN_DEBUG "prism2_hw_init: initialized in %lu ms\n", + (jiffies - start) * 1000 / HZ); + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + return 0; +} + + +static int prism2_hw_init2(struct net_device *dev, int initial) +{ + struct hostap_interface *iface; + local_info_t *local; + int i; + + iface = netdev_priv(dev); + local = iface->local; + +#ifdef PRISM2_DOWNLOAD_SUPPORT + kfree(local->pda); + if (local->no_pri) + local->pda = NULL; + else + local->pda = prism2_read_pda(dev); +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + hfa384x_disable_interrupts(dev); + +#ifndef final_version + HFA384X_OUTW(HFA384X_MAGIC, HFA384X_SWSUPPORT0_OFF); + if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != HFA384X_MAGIC) { + printk("SWSUPPORT0 write/read failed: %04X != %04X\n", + HFA384X_INW(HFA384X_SWSUPPORT0_OFF), HFA384X_MAGIC); + goto failed; + } +#endif + + if (initial || local->pri_only) { + hfa384x_events_only_cmd(dev); + /* get card version information */ + if (prism2_get_version_info(dev, HFA384X_RID_NICID, "NIC") || + prism2_get_version_info(dev, HFA384X_RID_PRIID, "PRI")) { + hfa384x_disable_interrupts(dev); + goto failed; + } + + if (prism2_get_version_info(dev, HFA384X_RID_STAID, "STA")) { + printk(KERN_DEBUG "%s: Failed to read STA f/w version " + "- only Primary f/w present\n", dev->name); + local->pri_only = 1; + return 0; + } + local->pri_only = 0; + hfa384x_disable_interrupts(dev); + } + + /* FIX: could convert allocate_fid to use sleeping CmdCompl wait and + * enable interrupts before this. This would also require some sort of + * sleeping AllocEv waiting */ + + /* allocate TX FIDs */ + local->txfid_len = PRISM2_TXFID_LEN; + for (i = 0; i < PRISM2_TXFID_COUNT; i++) { + local->txfid[i] = hfa384x_allocate_fid(dev, local->txfid_len); + if (local->txfid[i] == 0xffff && local->txfid_len > 1600) { + local->txfid[i] = hfa384x_allocate_fid(dev, 1600); + if (local->txfid[i] != 0xffff) { + printk(KERN_DEBUG "%s: Using shorter TX FID " + "(1600 bytes)\n", dev->name); + local->txfid_len = 1600; + } + } + if (local->txfid[i] == 0xffff) + goto failed; + local->intransmitfid[i] = PRISM2_TXFID_EMPTY; + } + + hfa384x_events_only_cmd(dev); + + if (initial) { + struct list_head *ptr; + prism2_check_sta_fw_version(local); + + if (hfa384x_get_rid(dev, HFA384X_RID_CNFOWNMACADDR, + &dev->dev_addr, 6, 1) < 0) { + printk("%s: could not get own MAC address\n", + dev->name); + } + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + memcpy(iface->dev->dev_addr, dev->dev_addr, ETH_ALEN); + } + } else if (local->fw_ap) + prism2_check_sta_fw_version(local); + + prism2_setup_rids(dev); + + /* MAC is now configured, but port 0 is not yet enabled */ + return 0; + + failed: + if (!local->no_pri) + printk(KERN_WARNING "%s: Initialization failed\n", dev_info); + return 1; +} + + +static int prism2_hw_enable(struct net_device *dev, int initial) +{ + struct hostap_interface *iface; + local_info_t *local; + int was_resetting; + + iface = netdev_priv(dev); + local = iface->local; + was_resetting = local->hw_resetting; + + if (hfa384x_cmd(dev, HFA384X_CMDCODE_ENABLE, 0, NULL, NULL)) { + printk("%s: MAC port 0 enabling failed\n", dev->name); + return 1; + } + + local->hw_ready = 1; + local->hw_reset_tries = 0; + local->hw_resetting = 0; + hfa384x_enable_interrupts(dev); + + /* at least D-Link DWL-650 seems to require additional port reset + * before it starts acting as an AP, so reset port automatically + * here just in case */ + if (initial && prism2_reset_port(dev)) { + printk("%s: MAC port 0 reseting failed\n", dev->name); + return 1; + } + + if (was_resetting && netif_queue_stopped(dev)) { + /* If hw_reset() was called during pending transmit, netif + * queue was stopped. Wake it up now since the wlan card has + * been resetted. */ + netif_wake_queue(dev); + } + + return 0; +} + + +static int prism2_hw_config(struct net_device *dev, int initial) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->hw_downloading) + return 1; + + if (prism2_hw_init(dev, initial)) { + return local->no_pri ? 0 : 1; + } + + if (prism2_hw_init2(dev, initial)) + return 1; + + /* Enable firmware if secondary image is loaded and at least one of the + * netdevices is up. */ + if (!local->pri_only && + (initial == 0 || (initial == 2 && local->num_dev_open > 0))) { + if (!local->dev_enabled) + prism2_callback(local, PRISM2_CALLBACK_ENABLE); + local->dev_enabled = 1; + return prism2_hw_enable(dev, initial); + } + + return 0; +} + + +static void prism2_hw_shutdown(struct net_device *dev, int no_disable) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + /* Allow only command completion events during disable */ + hfa384x_events_only_cmd(dev); + + local->hw_ready = 0; + if (local->dev_enabled) + prism2_callback(local, PRISM2_CALLBACK_DISABLE); + local->dev_enabled = 0; + + if (local->func->card_present && !local->func->card_present(local)) { + printk(KERN_DEBUG "%s: card already removed or not configured " + "during shutdown\n", dev->name); + return; + } + + if ((no_disable & HOSTAP_HW_NO_DISABLE) == 0 && + hfa384x_cmd(dev, HFA384X_CMDCODE_DISABLE, 0, NULL, NULL)) + printk(KERN_WARNING "%s: Shutdown failed\n", dev_info); + + hfa384x_disable_interrupts(dev); + + if (no_disable & HOSTAP_HW_ENABLE_CMDCOMPL) + hfa384x_events_only_cmd(dev); + else + prism2_clear_cmd_queue(local); +} + + +static void prism2_hw_reset(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + +#if 0 + static long last_reset = 0; + + /* do not reset card more than once per second to avoid ending up in a + * busy loop reseting the card */ + if (time_before_eq(jiffies, last_reset + HZ)) + return; + last_reset = jiffies; +#endif + + iface = netdev_priv(dev); + local = iface->local; + + if (in_interrupt()) { + printk(KERN_DEBUG "%s: driver bug - prism2_hw_reset() called " + "in interrupt context\n", dev->name); + return; + } + + if (local->hw_downloading) + return; + + if (local->hw_resetting) { + printk(KERN_WARNING "%s: %s: already resetting card - " + "ignoring reset request\n", dev_info, dev->name); + return; + } + + local->hw_reset_tries++; + if (local->hw_reset_tries > 10) { + printk(KERN_WARNING "%s: too many reset tries, skipping\n", + dev->name); + return; + } + + printk(KERN_WARNING "%s: %s: resetting card\n", dev_info, dev->name); + hfa384x_disable_interrupts(dev); + local->hw_resetting = 1; + if (local->func->cor_sreset) { + /* Host system seems to hang in some cases with high traffic + * load or shared interrupts during COR sreset. Disable shared + * interrupts during reset to avoid these crashes. COS sreset + * takes quite a long time, so it is unfortunate that this + * seems to be needed. Anyway, I do not know of any better way + * of avoiding the crash. */ + disable_irq(dev->irq); + local->func->cor_sreset(local); + enable_irq(dev->irq); + } + prism2_hw_shutdown(dev, 1); + prism2_hw_config(dev, 0); + local->hw_resetting = 0; + +#ifdef PRISM2_DOWNLOAD_SUPPORT + if (local->dl_pri) { + printk(KERN_DEBUG "%s: persistent download of primary " + "firmware\n", dev->name); + if (prism2_download_genesis(local, local->dl_pri) < 0) + printk(KERN_WARNING "%s: download (PRI) failed\n", + dev->name); + } + + if (local->dl_sec) { + printk(KERN_DEBUG "%s: persistent download of secondary " + "firmware\n", dev->name); + if (prism2_download_volatile(local, local->dl_sec) < 0) + printk(KERN_WARNING "%s: download (SEC) failed\n", + dev->name); + } +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + /* TODO: restore beacon TIM bits for STAs that have buffered frames */ +} + + +static void prism2_schedule_reset(local_info_t *local) +{ + schedule_work(&local->reset_queue); +} + + +/* Called only as scheduled task after noticing card timeout in interrupt + * context */ +static void handle_reset_queue(void *data) +{ + local_info_t *local = (local_info_t *) data; + + printk(KERN_DEBUG "%s: scheduled card reset\n", local->dev->name); + prism2_hw_reset(local->dev); + + if (netif_queue_stopped(local->dev)) { + int i; + + for (i = 0; i < PRISM2_TXFID_COUNT; i++) + if (local->intransmitfid[i] == PRISM2_TXFID_EMPTY) { + PDEBUG(DEBUG_EXTRA, "prism2_tx_timeout: " + "wake up queue\n"); + netif_wake_queue(local->dev); + break; + } + } +} + + +static int prism2_get_txfid_idx(local_info_t *local) +{ + int idx, end; + unsigned long flags; + + spin_lock_irqsave(&local->txfidlock, flags); + end = idx = local->next_txfid; + do { + if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY) { + local->intransmitfid[idx] = PRISM2_TXFID_RESERVED; + spin_unlock_irqrestore(&local->txfidlock, flags); + return idx; + } + idx++; + if (idx >= PRISM2_TXFID_COUNT) + idx = 0; + } while (idx != end); + spin_unlock_irqrestore(&local->txfidlock, flags); + + PDEBUG(DEBUG_EXTRA2, "prism2_get_txfid_idx: no room in txfid buf: " + "packet dropped\n"); + local->stats.tx_dropped++; + + return -1; +} + + +/* Called only from hardware IRQ */ +static void prism2_transmit_cb(struct net_device *dev, void *context, + u16 resp0, u16 res) +{ + struct hostap_interface *iface; + local_info_t *local; + int idx = (int) context; + + iface = netdev_priv(dev); + local = iface->local; + + if (res) { + printk(KERN_DEBUG "%s: prism2_transmit_cb - res=0x%02x\n", + dev->name, res); + return; + } + + if (idx < 0 || idx >= PRISM2_TXFID_COUNT) { + printk(KERN_DEBUG "%s: prism2_transmit_cb called with invalid " + "idx=%d\n", dev->name, idx); + return; + } + + if (!test_and_clear_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) { + printk(KERN_DEBUG "%s: driver bug: prism2_transmit_cb called " + "with no pending transmit\n", dev->name); + } + + if (netif_queue_stopped(dev)) { + /* ready for next TX, so wake up queue that was stopped in + * prism2_transmit() */ + netif_wake_queue(dev); + } + + spin_lock(&local->txfidlock); + + /* With reclaim, Resp0 contains new txfid for transmit; the old txfid + * will be automatically allocated for the next TX frame */ + local->intransmitfid[idx] = resp0; + + PDEBUG(DEBUG_FID, "%s: prism2_transmit_cb: txfid[%d]=0x%04x, " + "resp0=0x%04x, transmit_txfid=0x%04x\n", + dev->name, idx, local->txfid[idx], + resp0, local->intransmitfid[local->next_txfid]); + + idx++; + if (idx >= PRISM2_TXFID_COUNT) + idx = 0; + local->next_txfid = idx; + + /* check if all TX buffers are occupied */ + do { + if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY) { + spin_unlock(&local->txfidlock); + return; + } + idx++; + if (idx >= PRISM2_TXFID_COUNT) + idx = 0; + } while (idx != local->next_txfid); + spin_unlock(&local->txfidlock); + + /* no empty TX buffers, stop queue */ + netif_stop_queue(dev); +} + + +/* Called only from software IRQ if PCI bus master is not used (with bus master + * this can be called both from software and hardware IRQ) */ +static int prism2_transmit(struct net_device *dev, int idx) +{ + struct hostap_interface *iface; + local_info_t *local; + int res; + + iface = netdev_priv(dev); + local = iface->local; + + /* The driver tries to stop netif queue so that there would not be + * more than one attempt to transmit frames going on; check that this + * is really the case */ + + if (test_and_set_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) { + printk(KERN_DEBUG "%s: driver bug - prism2_transmit() called " + "when previous TX was pending\n", dev->name); + return -1; + } + + /* stop the queue for the time that transmit is pending */ + netif_stop_queue(dev); + + /* transmit packet */ + res = hfa384x_cmd_callback( + dev, + HFA384X_CMDCODE_TRANSMIT | HFA384X_CMD_TX_RECLAIM, + local->txfid[idx], + prism2_transmit_cb, (void *) idx); + + if (res) { + struct net_device_stats *stats; + printk(KERN_DEBUG "%s: prism2_transmit: CMDCODE_TRANSMIT " + "failed (res=%d)\n", dev->name, res); + stats = hostap_get_stats(dev); + stats->tx_dropped++; + netif_wake_queue(dev); + return -1; + } + dev->trans_start = jiffies; + + /* Since we did not wait for command completion, the card continues + * to process on the background and we will finish handling when + * command completion event is handled (prism2_cmd_ev() function) */ + + return 0; +} + + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) +/* Called only from hardware IRQ */ +static void prism2_tx_cb(struct net_device *dev, void *context, + u16 resp0, u16 res) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long addr; + int buf_len = (int) context; + + iface = netdev_priv(dev); + local = iface->local; + + if (res) { + printk(KERN_DEBUG "%s: prism2_tx_cb - res=0x%02x\n", + dev->name, res); + return; + } + + addr = virt_to_phys(local->bus_m0_buf); + HFA384X_OUTW((addr & 0xffff0000) >> 16, HFA384X_PCI_M0_ADDRH_OFF); + HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF); + HFA384X_OUTW(buf_len / 2, HFA384X_PCI_M0_LEN_OFF); + HFA384X_OUTW(HFA384X_PCI_CTL_TO_BAP, HFA384X_PCI_M0_CTL_OFF); +} +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + +/* Send IEEE 802.11 frame (convert the header into Prism2 TX descriptor and + * send the payload with this descriptor) */ +/* Called only from software IRQ */ +static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_tx_frame txdesc; + struct hostap_ieee80211_hdr *hdr; + struct hostap_skb_tx_data *meta; + int hdr_len, data_len, idx, res, ret = -1; + u16 tx_control, fc; + + iface = netdev_priv(dev); + local = iface->local; + + meta = (struct hostap_skb_tx_data *) skb->cb; + hdr = (struct hostap_ieee80211_hdr *) skb->data; + + prism2_callback(local, PRISM2_CALLBACK_TX_START); + + if ((local->func->card_present && !local->func->card_present(local)) || + !local->hw_ready || local->hw_downloading || local->pri_only) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: prism2_tx_80211: hw not ready -" + " skipping\n", dev->name); + } + goto fail; + } + + memset(&txdesc, 0, sizeof(txdesc)); + + /* skb->data starts with txdesc->frame_control */ + hdr_len = 24; + memcpy(&txdesc.frame_control, skb->data, hdr_len); + fc = le16_to_cpu(txdesc.frame_control); + if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA && + (fc & WLAN_FC_FROMDS) && (fc & WLAN_FC_TODS) && skb->len >= 30) { + /* Addr4 */ + memcpy(txdesc.addr4, skb->data + hdr_len, ETH_ALEN); + hdr_len += ETH_ALEN; + } + + tx_control = local->tx_control; + if (meta->tx_cb_idx) { + tx_control |= HFA384X_TX_CTRL_TX_OK; + txdesc.sw_support = cpu_to_le16(meta->tx_cb_idx); + } + txdesc.tx_control = cpu_to_le16(tx_control); + txdesc.tx_rate = meta->rate; + + data_len = skb->len - hdr_len; + txdesc.data_len = cpu_to_le16(data_len); + txdesc.len = cpu_to_be16(data_len); + + idx = prism2_get_txfid_idx(local); + if (idx < 0) + goto fail; + + if (local->frame_dump & PRISM2_DUMP_TX_HDR) + hostap_dump_tx_header(dev->name, &txdesc); + + spin_lock(&local->baplock); + res = hfa384x_setup_bap(dev, BAP0, local->txfid[idx], 0); + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + if (!res && skb->len >= local->bus_master_threshold_tx) { + u8 *pos; + int buf_len; + + local->bus_m0_tx_idx = idx; + + /* FIX: BAP0 should be locked during bus master transfer, but + * baplock with BH's disabled is not OK for this; netif queue + * stopping is not enough since BAP0 is used also for RID + * read/write */ + + /* stop the queue for the time that bus mastering on BAP0 is + * in use */ + netif_stop_queue(dev); + + spin_unlock(&local->baplock); + + /* Copy frame data to bus_m0_buf */ + pos = local->bus_m0_buf; + memcpy(pos, &txdesc, sizeof(txdesc)); + pos += sizeof(txdesc); + memcpy(pos, skb->data + hdr_len, skb->len - hdr_len); + pos += skb->len - hdr_len; + buf_len = pos - local->bus_m0_buf; + if (buf_len & 1) + buf_len++; + +#ifdef PRISM2_ENABLE_BEFORE_TX_BUS_MASTER + /* Any RX packet seems to break something with TX bus + * mastering; enable command is enough to fix this.. */ + if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_ENABLE, 0, + prism2_tx_cb, (void *) buf_len)) { + printk(KERN_DEBUG "%s: TX: enable port0 failed\n", + dev->name); + } +#else /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */ + prism2_tx_cb(dev, (void *) buf_len, 0, 0); +#endif /* PRISM2_ENABLE_BEFORE_TX_BUS_MASTER */ + + /* Bus master transfer will be started from command completion + * event handler and TX handling will be finished by calling + * prism2_transmit() from bus master event handler */ + goto tx_stats; + } +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + if (!res) + res = hfa384x_to_bap(dev, BAP0, &txdesc, sizeof(txdesc)); + if (!res) + res = hfa384x_to_bap(dev, BAP0, skb->data + hdr_len, + skb->len - hdr_len); + spin_unlock(&local->baplock); + + if (!res) + res = prism2_transmit(dev, idx); + if (res) { + printk(KERN_DEBUG "%s: prism2_tx_80211 - to BAP0 failed\n", + dev->name); + local->intransmitfid[idx] = PRISM2_TXFID_EMPTY; + schedule_work(&local->reset_queue); + goto fail; + } + + ret = 0; + +fail: + prism2_callback(local, PRISM2_CALLBACK_TX_END); + return ret; +} + + +/* Some SMP systems have reported number of odd errors with hostap_pci. fid + * register has changed values between consecutive reads for an unknown reason. + * This should really not happen, so more debugging is needed. This test + * version is a big slower, but it will detect most of such register changes + * and will try to get the correct fid eventually. */ +#define EXTRA_FID_READ_TESTS + +static inline u16 prism2_read_fid_reg(struct net_device *dev, u16 reg) +{ +#ifdef EXTRA_FID_READ_TESTS + u16 val, val2, val3; + int i; + + for (i = 0; i < 10; i++) { + val = HFA384X_INW(reg); + val2 = HFA384X_INW(reg); + val3 = HFA384X_INW(reg); + + if (val == val2 && val == val3) + return val; + + printk(KERN_DEBUG "%s: detected fid change (try=%d, reg=%04x):" + " %04x %04x %04x\n", + dev->name, i, reg, val, val2, val3); + if ((val == val2 || val == val3) && val != 0) + return val; + if (val2 == val3 && val2 != 0) + return val2; + } + printk(KERN_WARNING "%s: Uhhuh.. could not read good fid from reg " + "%04x (%04x %04x %04x)\n", dev->name, reg, val, val2, val3); + return val; +#else /* EXTRA_FID_READ_TESTS */ + return HFA384X_INW(reg); +#endif /* EXTRA_FID_READ_TESTS */ +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_rx(local_info_t *local) +{ + struct net_device *dev = local->dev; + int res, rx_pending = 0; + u16 len, hdr_len, rxfid, status, macport; + struct net_device_stats *stats; + struct hfa384x_rx_frame rxdesc; + struct sk_buff *skb = NULL; + + prism2_callback(local, PRISM2_CALLBACK_RX_START); + stats = hostap_get_stats(dev); + + rxfid = prism2_read_fid_reg(dev, HFA384X_RXFID_OFF); +#ifndef final_version + if (rxfid == 0) { + rxfid = HFA384X_INW(HFA384X_RXFID_OFF); + printk(KERN_DEBUG "prism2_rx: rxfid=0 (next 0x%04x)\n", + rxfid); + if (rxfid == 0) { + schedule_work(&local->reset_queue); + goto rx_dropped; + } + /* try to continue with the new rxfid value */ + } +#endif + + spin_lock(&local->baplock); + res = hfa384x_setup_bap(dev, BAP0, rxfid, 0); + if (!res) + res = hfa384x_from_bap(dev, BAP0, &rxdesc, sizeof(rxdesc)); + + if (res) { + spin_unlock(&local->baplock); + printk(KERN_DEBUG "%s: copy from BAP0 failed %d\n", dev->name, + res); + if (res == -ETIMEDOUT) { + schedule_work(&local->reset_queue); + } + goto rx_dropped; + } + + len = le16_to_cpu(rxdesc.data_len); + hdr_len = sizeof(rxdesc); + status = le16_to_cpu(rxdesc.status); + macport = (status >> 8) & 0x07; + + /* Drop frames with too large reported payload length. Monitor mode + * seems to sometimes pass frames (e.g., ctrl::ack) with signed and + * negative value, so allow also values 65522 .. 65534 (-14 .. -2) for + * macport 7 */ + if (len > PRISM2_DATA_MAXLEN + 8 /* WEP */) { + if (macport == 7 && local->iw_mode == IW_MODE_MONITOR) { + if (len >= (u16) -14) { + hdr_len -= 65535 - len; + hdr_len--; + } + len = 0; + } else { + spin_unlock(&local->baplock); + printk(KERN_DEBUG "%s: Received frame with invalid " + "length 0x%04x\n", dev->name, len); + hostap_dump_rx_header(dev->name, &rxdesc); + goto rx_dropped; + } + } + + skb = dev_alloc_skb(len + hdr_len); + if (!skb) { + spin_unlock(&local->baplock); + printk(KERN_DEBUG "%s: RX failed to allocate skb\n", + dev->name); + goto rx_dropped; + } + skb->dev = dev; + memcpy(skb_put(skb, hdr_len), &rxdesc, hdr_len); + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + if (len >= local->bus_master_threshold_rx) { + unsigned long addr; + + hfa384x_events_no_bap1(dev); + + local->rx_skb = skb; + /* Internal BAP0 offset points to the byte following rxdesc; + * copy rest of the data using bus master */ + addr = virt_to_phys(skb_put(skb, len)); + HFA384X_OUTW((addr & 0xffff0000) >> 16, + HFA384X_PCI_M0_ADDRH_OFF); + HFA384X_OUTW(addr & 0x0000ffff, HFA384X_PCI_M0_ADDRL_OFF); + if (len & 1) + len++; + HFA384X_OUTW(len / 2, HFA384X_PCI_M0_LEN_OFF); + HFA384X_OUTW(HFA384X_PCI_CTL_FROM_BAP, HFA384X_PCI_M0_CTL_OFF); + + /* pci_bus_m1 event will be generated when data transfer is + * complete and the frame will then be added to rx_list and + * rx_tasklet is scheduled */ + rx_pending = 1; + + /* Have to release baplock before returning, although BAP0 + * should really not be used before DMA transfer has been + * completed. */ + spin_unlock(&local->baplock); + } else +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + { + if (len > 0) + res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len), + len); + spin_unlock(&local->baplock); + if (res) { + printk(KERN_DEBUG "%s: RX failed to read " + "frame data\n", dev->name); + goto rx_dropped; + } + + skb_queue_tail(&local->rx_list, skb); + tasklet_schedule(&local->rx_tasklet); + } + + rx_exit: + prism2_callback(local, PRISM2_CALLBACK_RX_END); + if (!rx_pending) { + HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF); + } + + return; + + rx_dropped: + stats->rx_dropped++; + if (skb) + dev_kfree_skb(skb); + goto rx_exit; +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_rx_skb(local_info_t *local, struct sk_buff *skb) +{ + struct hfa384x_rx_frame *rxdesc; + struct net_device *dev = skb->dev; + struct hostap_80211_rx_status stats; + int hdrlen, rx_hdrlen; + + rx_hdrlen = sizeof(*rxdesc); + if (skb->len < sizeof(*rxdesc)) { + /* Allow monitor mode to receive shorter frames */ + if (local->iw_mode == IW_MODE_MONITOR && + skb->len >= sizeof(*rxdesc) - 30) { + rx_hdrlen = skb->len; + } else { + dev_kfree_skb(skb); + return; + } + } + + rxdesc = (struct hfa384x_rx_frame *) skb->data; + + if (local->frame_dump & PRISM2_DUMP_RX_HDR && + skb->len >= sizeof(*rxdesc)) + hostap_dump_rx_header(dev->name, rxdesc); + + if (le16_to_cpu(rxdesc->status) & HFA384X_RX_STATUS_FCSERR && + (!local->monitor_allow_fcserr || + local->iw_mode != IW_MODE_MONITOR)) + goto drop; + + if (skb->len > PRISM2_DATA_MAXLEN) { + printk(KERN_DEBUG "%s: RX: len(%d) > MAX(%d)\n", + dev->name, skb->len, PRISM2_DATA_MAXLEN); + goto drop; + } + + stats.mac_time = le32_to_cpu(rxdesc->time); + stats.signal = rxdesc->signal - local->rssi_to_dBm; + stats.noise = rxdesc->silence - local->rssi_to_dBm; + stats.rate = rxdesc->rate; + + /* Convert Prism2 RX structure into IEEE 802.11 header */ + hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(rxdesc->frame_control)); + if (hdrlen > rx_hdrlen) + hdrlen = rx_hdrlen; + + memmove(skb_pull(skb, rx_hdrlen - hdrlen), + &rxdesc->frame_control, hdrlen); + + hostap_80211_rx(dev, skb, &stats); + return; + + drop: + dev_kfree_skb(skb); +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_rx_tasklet(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + struct sk_buff *skb; + + while ((skb = skb_dequeue(&local->rx_list)) != NULL) + hostap_rx_skb(local, skb); +} + + +/* Called only from hardware IRQ */ +static void prism2_alloc_ev(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int idx; + u16 fid; + + iface = netdev_priv(dev); + local = iface->local; + + fid = prism2_read_fid_reg(dev, HFA384X_ALLOCFID_OFF); + + PDEBUG(DEBUG_FID, "FID: interrupt: ALLOC - fid=0x%04x\n", fid); + + spin_lock(&local->txfidlock); + idx = local->next_alloc; + + do { + if (local->txfid[idx] == fid) { + PDEBUG(DEBUG_FID, "FID: found matching txfid[%d]\n", + idx); + +#ifndef final_version + if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY) + printk("Already released txfid found at idx " + "%d\n", idx); + if (local->intransmitfid[idx] == PRISM2_TXFID_RESERVED) + printk("Already reserved txfid found at idx " + "%d\n", idx); +#endif + local->intransmitfid[idx] = PRISM2_TXFID_EMPTY; + idx++; + local->next_alloc = idx >= PRISM2_TXFID_COUNT ? 0 : + idx; + + if (!test_bit(HOSTAP_BITS_TRANSMIT, &local->bits) && + netif_queue_stopped(dev)) + netif_wake_queue(dev); + + spin_unlock(&local->txfidlock); + return; + } + + idx++; + if (idx >= PRISM2_TXFID_COUNT) + idx = 0; + } while (idx != local->next_alloc); + + printk(KERN_WARNING "%s: could not find matching txfid (0x%04x, new " + "read 0x%04x) for alloc event\n", dev->name, fid, + HFA384X_INW(HFA384X_ALLOCFID_OFF)); + printk(KERN_DEBUG "TXFIDs:"); + for (idx = 0; idx < PRISM2_TXFID_COUNT; idx++) + printk(" %04x[%04x]", local->txfid[idx], + local->intransmitfid[idx]); + printk("\n"); + spin_unlock(&local->txfidlock); + + /* FIX: should probably schedule reset; reference to one txfid was lost + * completely.. Bad things will happen if we run out of txfids + * Actually, this will cause netdev watchdog to notice TX timeout and + * then card reset after all txfids have been leaked. */ +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_tx_callback(local_info_t *local, + struct hfa384x_tx_frame *txdesc, int ok, + char *payload) +{ + u16 sw_support, hdrlen, len; + struct sk_buff *skb; + struct hostap_tx_callback_info *cb; + + /* Make sure that frame was from us. */ + if (memcmp(txdesc->addr2, local->dev->dev_addr, ETH_ALEN)) { + printk(KERN_DEBUG "%s: TX callback - foreign frame\n", + local->dev->name); + return; + } + + sw_support = le16_to_cpu(txdesc->sw_support); + + spin_lock(&local->lock); + cb = local->tx_callback; + while (cb != NULL && cb->idx != sw_support) + cb = cb->next; + spin_unlock(&local->lock); + + if (cb == NULL) { + printk(KERN_DEBUG "%s: could not find TX callback (idx %d)\n", + local->dev->name, sw_support); + return; + } + + hdrlen = hostap_80211_get_hdrlen(le16_to_cpu(txdesc->frame_control)); + len = le16_to_cpu(txdesc->data_len); + skb = dev_alloc_skb(hdrlen + len); + if (skb == NULL) { + printk(KERN_DEBUG "%s: hostap_tx_callback failed to allocate " + "skb\n", local->dev->name); + return; + } + + memcpy(skb_put(skb, hdrlen), (void *) &txdesc->frame_control, hdrlen); + if (payload) + memcpy(skb_put(skb, len), payload, len); + + skb->dev = local->dev; + skb->mac.raw = skb->data; + + cb->func(skb, ok, cb->data); +} + + +/* Called only as a tasklet (software IRQ) */ +static int hostap_tx_compl_read(local_info_t *local, int error, + struct hfa384x_tx_frame *txdesc, + char **payload) +{ + u16 fid, len; + int res, ret = 0; + struct net_device *dev = local->dev; + + fid = prism2_read_fid_reg(dev, HFA384X_TXCOMPLFID_OFF); + + PDEBUG(DEBUG_FID, "interrupt: TX (err=%d) - fid=0x%04x\n", fid, error); + + spin_lock(&local->baplock); + res = hfa384x_setup_bap(dev, BAP0, fid, 0); + if (!res) + res = hfa384x_from_bap(dev, BAP0, txdesc, sizeof(*txdesc)); + if (res) { + PDEBUG(DEBUG_EXTRA, "%s: TX (err=%d) - fid=0x%04x - could not " + "read txdesc\n", dev->name, error, fid); + if (res == -ETIMEDOUT) { + schedule_work(&local->reset_queue); + } + ret = -1; + goto fail; + } + if (txdesc->sw_support) { + len = le16_to_cpu(txdesc->data_len); + if (len < PRISM2_DATA_MAXLEN) { + *payload = (char *) kmalloc(len, GFP_ATOMIC); + if (*payload == NULL || + hfa384x_from_bap(dev, BAP0, *payload, len)) { + PDEBUG(DEBUG_EXTRA, "%s: could not read TX " + "frame payload\n", dev->name); + kfree(*payload); + *payload = NULL; + ret = -1; + goto fail; + } + } + } + + fail: + spin_unlock(&local->baplock); + + return ret; +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_tx_ev(local_info_t *local) +{ + struct net_device *dev = local->dev; + char *payload = NULL; + struct hfa384x_tx_frame txdesc; + + if (hostap_tx_compl_read(local, 0, &txdesc, &payload)) + goto fail; + + if (local->frame_dump & PRISM2_DUMP_TX_HDR) { + PDEBUG(DEBUG_EXTRA, "%s: TX - status=0x%04x " + "retry_count=%d tx_rate=%d seq_ctrl=%d " + "duration_id=%d\n", + dev->name, le16_to_cpu(txdesc.status), + txdesc.retry_count, txdesc.tx_rate, + le16_to_cpu(txdesc.seq_ctrl), + le16_to_cpu(txdesc.duration_id)); + } + + if (txdesc.sw_support) + hostap_tx_callback(local, &txdesc, 1, payload); + kfree(payload); + + fail: + HFA384X_OUTW(HFA384X_EV_TX, HFA384X_EVACK_OFF); +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_sta_tx_exc_tasklet(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + struct sk_buff *skb; + + while ((skb = skb_dequeue(&local->sta_tx_exc_list)) != NULL) { + struct hfa384x_tx_frame *txdesc = + (struct hfa384x_tx_frame *) skb->data; + + if (skb->len >= sizeof(*txdesc)) { + /* Convert Prism2 RX structure into IEEE 802.11 header + */ + u16 fc = le16_to_cpu(txdesc->frame_control); + int hdrlen = hostap_80211_get_hdrlen(fc); + memmove(skb_pull(skb, sizeof(*txdesc) - hdrlen), + &txdesc->frame_control, hdrlen); + + hostap_handle_sta_tx_exc(local, skb); + } + dev_kfree_skb(skb); + } +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_txexc(local_info_t *local) +{ + struct net_device *dev = local->dev; + u16 status, fc; + int show_dump, res; + char *payload = NULL; + struct hfa384x_tx_frame txdesc; + + show_dump = local->frame_dump & PRISM2_DUMP_TXEXC_HDR; + local->stats.tx_errors++; + + res = hostap_tx_compl_read(local, 1, &txdesc, &payload); + HFA384X_OUTW(HFA384X_EV_TXEXC, HFA384X_EVACK_OFF); + if (res) + return; + + status = le16_to_cpu(txdesc.status); + + /* We produce a TXDROP event only for retry or lifetime + * exceeded, because that's the only status that really mean + * that this particular node went away. + * Other errors means that *we* screwed up. - Jean II */ + if (status & (HFA384X_TX_STATUS_RETRYERR | HFA384X_TX_STATUS_AGEDERR)) + { + union iwreq_data wrqu; + + /* Copy 802.11 dest address. */ + memcpy(wrqu.addr.sa_data, txdesc.addr1, ETH_ALEN); + wrqu.addr.sa_family = ARPHRD_ETHER; + wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL); + } else + show_dump = 1; + + if (local->iw_mode == IW_MODE_MASTER || + local->iw_mode == IW_MODE_REPEAT || + local->wds_type & HOSTAP_WDS_AP_CLIENT) { + struct sk_buff *skb; + skb = dev_alloc_skb(sizeof(txdesc)); + if (skb) { + memcpy(skb_put(skb, sizeof(txdesc)), &txdesc, + sizeof(txdesc)); + skb_queue_tail(&local->sta_tx_exc_list, skb); + tasklet_schedule(&local->sta_tx_exc_tasklet); + } + } + + if (txdesc.sw_support) + hostap_tx_callback(local, &txdesc, 0, payload); + kfree(payload); + + if (!show_dump) + return; + + PDEBUG(DEBUG_EXTRA, "%s: TXEXC - status=0x%04x (%s%s%s%s)" + " tx_control=%04x\n", + dev->name, status, + status & HFA384X_TX_STATUS_RETRYERR ? "[RetryErr]" : "", + status & HFA384X_TX_STATUS_AGEDERR ? "[AgedErr]" : "", + status & HFA384X_TX_STATUS_DISCON ? "[Discon]" : "", + status & HFA384X_TX_STATUS_FORMERR ? "[FormErr]" : "", + le16_to_cpu(txdesc.tx_control)); + + fc = le16_to_cpu(txdesc.frame_control); + PDEBUG(DEBUG_EXTRA, " retry_count=%d tx_rate=%d fc=0x%04x " + "(%s%s%s::%d%s%s)\n", + txdesc.retry_count, txdesc.tx_rate, fc, + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT ? "Mgmt" : "", + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_CTRL ? "Ctrl" : "", + WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_DATA ? "Data" : "", + WLAN_FC_GET_STYPE(fc), + fc & WLAN_FC_TODS ? " ToDS" : "", + fc & WLAN_FC_FROMDS ? " FromDS" : ""); + PDEBUG(DEBUG_EXTRA, " A1=" MACSTR " A2=" MACSTR " A3=" + MACSTR " A4=" MACSTR "\n", + MAC2STR(txdesc.addr1), MAC2STR(txdesc.addr2), + MAC2STR(txdesc.addr3), MAC2STR(txdesc.addr4)); +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_info_tasklet(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + struct sk_buff *skb; + + while ((skb = skb_dequeue(&local->info_list)) != NULL) { + hostap_info_process(local, skb); + dev_kfree_skb(skb); + } +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info(local_info_t *local) +{ + struct net_device *dev = local->dev; + u16 fid; + int res, left; + struct hfa384x_info_frame info; + struct sk_buff *skb; + + fid = HFA384X_INW(HFA384X_INFOFID_OFF); + + spin_lock(&local->baplock); + res = hfa384x_setup_bap(dev, BAP0, fid, 0); + if (!res) + res = hfa384x_from_bap(dev, BAP0, &info, sizeof(info)); + if (res) { + spin_unlock(&local->baplock); + printk(KERN_DEBUG "Could not get info frame (fid=0x%04x)\n", + fid); + if (res == -ETIMEDOUT) { + schedule_work(&local->reset_queue); + } + goto out; + } + + le16_to_cpus(&info.len); + le16_to_cpus(&info.type); + left = (info.len - 1) * 2; + + if (info.len & 0x8000 || info.len == 0 || left > 2060) { + /* data register seems to give 0x8000 in some error cases even + * though busy bit is not set in offset register; + * in addition, length must be at least 1 due to type field */ + spin_unlock(&local->baplock); + printk(KERN_DEBUG "%s: Received info frame with invalid " + "length 0x%04x (type 0x%04x)\n", dev->name, info.len, + info.type); + goto out; + } + + skb = dev_alloc_skb(sizeof(info) + left); + if (skb == NULL) { + spin_unlock(&local->baplock); + printk(KERN_DEBUG "%s: Could not allocate skb for info " + "frame\n", dev->name); + goto out; + } + + memcpy(skb_put(skb, sizeof(info)), &info, sizeof(info)); + if (left > 0 && hfa384x_from_bap(dev, BAP0, skb_put(skb, left), left)) + { + spin_unlock(&local->baplock); + printk(KERN_WARNING "%s: Info frame read failed (fid=0x%04x, " + "len=0x%04x, type=0x%04x\n", + dev->name, fid, info.len, info.type); + dev_kfree_skb(skb); + goto out; + } + spin_unlock(&local->baplock); + + skb_queue_tail(&local->info_list, skb); + tasklet_schedule(&local->info_tasklet); + + out: + HFA384X_OUTW(HFA384X_EV_INFO, HFA384X_EVACK_OFF); +} + + +/* Called only as a tasklet (software IRQ) */ +static void hostap_bap_tasklet(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + struct net_device *dev = local->dev; + u16 ev; + int frames = 30; + + if (local->func->card_present && !local->func->card_present(local)) + return; + + set_bit(HOSTAP_BITS_BAP_TASKLET, &local->bits); + + /* Process all pending BAP events without generating new interrupts + * for them */ + while (frames-- > 0) { + ev = HFA384X_INW(HFA384X_EVSTAT_OFF); + if (ev == 0xffff || !(ev & HFA384X_BAP0_EVENTS)) + break; + if (ev & HFA384X_EV_RX) + prism2_rx(local); + if (ev & HFA384X_EV_INFO) + prism2_info(local); + if (ev & HFA384X_EV_TX) + prism2_tx_ev(local); + if (ev & HFA384X_EV_TXEXC) + prism2_txexc(local); + } + + set_bit(HOSTAP_BITS_BAP_TASKLET2, &local->bits); + clear_bit(HOSTAP_BITS_BAP_TASKLET, &local->bits); + + /* Enable interrupts for new BAP events */ + hfa384x_events_all(dev); + clear_bit(HOSTAP_BITS_BAP_TASKLET2, &local->bits); +} + + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) +/* Called only from hardware IRQ */ +static void prism2_bus_master_ev(struct net_device *dev, int bap) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (bap == BAP1) { + /* FIX: frame payload was DMA'd to skb->data; might need to + * invalidate data cache for that memory area */ + skb_queue_tail(&local->rx_list, local->rx_skb); + tasklet_schedule(&local->rx_tasklet); + HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF); + } else { + if (prism2_transmit(dev, local->bus_m0_tx_idx)) { + printk(KERN_DEBUG "%s: prism2_transmit() failed " + "when called from bus master event\n", + dev->name); + local->intransmitfid[local->bus_m0_tx_idx] = + PRISM2_TXFID_EMPTY; + schedule_work(&local->reset_queue); + } + } +} +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + +/* Called only from hardware IRQ */ +static void prism2_infdrop(struct net_device *dev) +{ + static unsigned long last_inquire = 0; + + PDEBUG(DEBUG_EXTRA, "%s: INFDROP event\n", dev->name); + + /* some firmware versions seem to get stuck with + * full CommTallies in high traffic load cases; every + * packet will then cause INFDROP event and CommTallies + * info frame will not be sent automatically. Try to + * get out of this state by inquiring CommTallies. */ + if (!last_inquire || time_after(jiffies, last_inquire + HZ)) { + hfa384x_cmd_callback(dev, HFA384X_CMDCODE_INQUIRE, + HFA384X_INFO_COMMTALLIES, NULL, NULL); + last_inquire = jiffies; + } +} + + +/* Called only from hardware IRQ */ +static void prism2_ev_tick(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 evstat, inten; + static int prev_stuck = 0; + + iface = netdev_priv(dev); + local = iface->local; + + if (time_after(jiffies, local->last_tick_timer + 5 * HZ) && + local->last_tick_timer) { + evstat = HFA384X_INW(HFA384X_EVSTAT_OFF); + inten = HFA384X_INW(HFA384X_INTEN_OFF); + if (!prev_stuck) { + printk(KERN_INFO "%s: SW TICK stuck? " + "bits=0x%lx EvStat=%04x IntEn=%04x\n", + dev->name, local->bits, evstat, inten); + } + local->sw_tick_stuck++; + if ((evstat & HFA384X_BAP0_EVENTS) && + (inten & HFA384X_BAP0_EVENTS)) { + printk(KERN_INFO "%s: trying to recover from IRQ " + "hang\n", dev->name); + hfa384x_events_no_bap0(dev); + } + prev_stuck = 1; + } else + prev_stuck = 0; +} + + +/* Called only from hardware IRQ */ +static inline void prism2_check_magic(local_info_t *local) +{ + /* at least PCI Prism2.5 with bus mastering seems to sometimes + * return 0x0000 in SWSUPPORT0 for unknown reason, but re-reading the + * register once or twice seems to get the correct value.. PCI cards + * cannot anyway be removed during normal operation, so there is not + * really any need for this verification with them. */ + +#ifndef PRISM2_PCI +#ifndef final_version + static unsigned long last_magic_err = 0; + struct net_device *dev = local->dev; + + if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != HFA384X_MAGIC) { + if (!local->hw_ready) + return; + HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF); + if (time_after(jiffies, last_magic_err + 10 * HZ)) { + printk("%s: Interrupt, but SWSUPPORT0 does not match: " + "%04X != %04X - card removed?\n", dev->name, + HFA384X_INW(HFA384X_SWSUPPORT0_OFF), + HFA384X_MAGIC); + last_magic_err = jiffies; + } else if (net_ratelimit()) { + printk(KERN_DEBUG "%s: interrupt - SWSUPPORT0=%04x " + "MAGIC=%04x\n", dev->name, + HFA384X_INW(HFA384X_SWSUPPORT0_OFF), + HFA384X_MAGIC); + } + if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != 0xffff) + schedule_work(&local->reset_queue); + return; + } +#endif /* final_version */ +#endif /* !PRISM2_PCI */ +} + + +/* Called only from hardware IRQ */ +static irqreturn_t prism2_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *) dev_id; + struct hostap_interface *iface; + local_info_t *local; + int events = 0; + u16 ev; + + iface = netdev_priv(dev); + local = iface->local; + + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0); + + if (local->func->card_present && !local->func->card_present(local)) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: Interrupt, but dev not OK\n", + dev->name); + } + return IRQ_HANDLED; + } + + prism2_check_magic(local); + + for (;;) { + ev = HFA384X_INW(HFA384X_EVSTAT_OFF); + if (ev == 0xffff) { + if (local->shutdown) + return IRQ_HANDLED; + HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF); + printk(KERN_DEBUG "%s: prism2_interrupt: ev=0xffff\n", + dev->name); + return IRQ_HANDLED; + } + + ev &= HFA384X_INW(HFA384X_INTEN_OFF); + if (ev == 0) + break; + + if (ev & HFA384X_EV_CMD) { + prism2_cmd_ev(dev); + } + + /* Above events are needed even before hw is ready, but other + * events should be skipped during initialization. This may + * change for AllocEv if allocate_fid is implemented without + * busy waiting. */ + if (!local->hw_ready || local->hw_resetting || + !local->dev_enabled) { + ev = HFA384X_INW(HFA384X_EVSTAT_OFF); + if (ev & HFA384X_EV_CMD) + goto next_event; + if ((ev & HFA384X_EVENT_MASK) == 0) + return IRQ_HANDLED; + if (local->dev_enabled && (ev & ~HFA384X_EV_TICK) && + net_ratelimit()) { + printk(KERN_DEBUG "%s: prism2_interrupt: hw " + "not ready; skipping events 0x%04x " + "(IntEn=0x%04x)%s%s%s\n", + dev->name, ev, + HFA384X_INW(HFA384X_INTEN_OFF), + !local->hw_ready ? " (!hw_ready)" : "", + local->hw_resetting ? + " (hw_resetting)" : "", + !local->dev_enabled ? + " (!dev_enabled)" : ""); + } + HFA384X_OUTW(ev, HFA384X_EVACK_OFF); + return IRQ_HANDLED; + } + + if (ev & HFA384X_EV_TICK) { + prism2_ev_tick(dev); + HFA384X_OUTW(HFA384X_EV_TICK, HFA384X_EVACK_OFF); + } + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + if (ev & HFA384X_EV_PCI_M0) { + prism2_bus_master_ev(dev, BAP0); + HFA384X_OUTW(HFA384X_EV_PCI_M0, HFA384X_EVACK_OFF); + } + + if (ev & HFA384X_EV_PCI_M1) { + /* previous RX has been copied can be ACKed now */ + HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF); + + prism2_bus_master_ev(dev, BAP1); + HFA384X_OUTW(HFA384X_EV_PCI_M1, HFA384X_EVACK_OFF); + } +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + if (ev & HFA384X_EV_ALLOC) { + prism2_alloc_ev(dev); + HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF); + } + + /* Reading data from the card is quite time consuming, so do it + * in tasklets. TX, TXEXC, RX, and INFO events will be ACKed + * and unmasked after needed data has been read completely. */ + if (ev & HFA384X_BAP0_EVENTS) { + hfa384x_events_no_bap0(dev); + tasklet_schedule(&local->bap_tasklet); + } + +#ifndef final_version + if (ev & HFA384X_EV_WTERR) { + PDEBUG(DEBUG_EXTRA, "%s: WTERR event\n", dev->name); + HFA384X_OUTW(HFA384X_EV_WTERR, HFA384X_EVACK_OFF); + } +#endif /* final_version */ + + if (ev & HFA384X_EV_INFDROP) { + prism2_infdrop(dev); + HFA384X_OUTW(HFA384X_EV_INFDROP, HFA384X_EVACK_OFF); + } + + next_event: + events++; + if (events >= PRISM2_MAX_INTERRUPT_EVENTS) { + PDEBUG(DEBUG_EXTRA, "prism2_interrupt: >%d events " + "(EvStat=0x%04x)\n", + PRISM2_MAX_INTERRUPT_EVENTS, + HFA384X_INW(HFA384X_EVSTAT_OFF)); + break; + } + } + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 1); + return IRQ_RETVAL(events); +} + + +static void prism2_check_sta_fw_version(local_info_t *local) +{ + struct hfa384x_comp_ident comp; + int id, variant, major, minor; + + if (hfa384x_get_rid(local->dev, HFA384X_RID_STAID, + &comp, sizeof(comp), 1) < 0) + return; + + local->fw_ap = 0; + id = le16_to_cpu(comp.id); + if (id != HFA384X_COMP_ID_STA) { + if (id == HFA384X_COMP_ID_FW_AP) + local->fw_ap = 1; + return; + } + + major = __le16_to_cpu(comp.major); + minor = __le16_to_cpu(comp.minor); + variant = __le16_to_cpu(comp.variant); + local->sta_fw_ver = PRISM2_FW_VER(major, minor, variant); + + /* Station firmware versions before 1.4.x seem to have a bug in + * firmware-based WEP encryption when using Host AP mode, so use + * host_encrypt as a default for them. Firmware version 1.4.9 is the + * first one that has been seen to produce correct encryption, but the + * bug might be fixed before that (although, at least 1.4.2 is broken). + */ + local->fw_encrypt_ok = local->sta_fw_ver >= PRISM2_FW_VER(1,4,9); + + if (local->iw_mode == IW_MODE_MASTER && !local->host_encrypt && + !local->fw_encrypt_ok) { + printk(KERN_DEBUG "%s: defaulting to host-based encryption as " + "a workaround for firmware bug in Host AP mode WEP\n", + local->dev->name); + local->host_encrypt = 1; + } + + /* IEEE 802.11 standard compliant WDS frames (4 addresses) were broken + * in station firmware versions before 1.5.x. With these versions, the + * driver uses a workaround with bogus frame format (4th address after + * the payload). This is not compatible with other AP devices. Since + * the firmware bug is fixed in the latest station firmware versions, + * automatically enable standard compliant mode for cards using station + * firmware version 1.5.0 or newer. */ + if (local->sta_fw_ver >= PRISM2_FW_VER(1,5,0)) + local->wds_type |= HOSTAP_WDS_STANDARD_FRAME; + else { + printk(KERN_DEBUG "%s: defaulting to bogus WDS frame as a " + "workaround for firmware bug in Host AP mode WDS\n", + local->dev->name); + } + + hostap_check_sta_fw_version(local->ap, local->sta_fw_ver); +} + + +static void prism2_crypt_deinit_entries(local_info_t *local, int force) +{ + struct list_head *ptr, *n; + struct prism2_crypt_data *entry; + + for (ptr = local->crypt_deinit_list.next, n = ptr->next; + ptr != &local->crypt_deinit_list; ptr = n, n = ptr->next) { + entry = list_entry(ptr, struct prism2_crypt_data, list); + + if (atomic_read(&entry->refcnt) != 0 && !force) + continue; + + list_del(ptr); + + if (entry->ops) + entry->ops->deinit(entry->priv); + kfree(entry); + } +} + + +static void prism2_crypt_deinit_handler(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + unsigned long flags; + + spin_lock_irqsave(&local->lock, flags); + prism2_crypt_deinit_entries(local, 0); + if (!list_empty(&local->crypt_deinit_list)) { + printk(KERN_DEBUG "%s: entries remaining in delayed crypt " + "deletion list\n", local->dev->name); + local->crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&local->crypt_deinit_timer); + } + spin_unlock_irqrestore(&local->lock, flags); + +} + + +static void hostap_passive_scan(unsigned long data) +{ + local_info_t *local = (local_info_t *) data; + struct net_device *dev = local->dev; + u16 channel; + + if (local->passive_scan_interval <= 0) + return; + + if (local->passive_scan_state == PASSIVE_SCAN_LISTEN) { + int max_tries = 16; + + /* Even though host system does not really know when the WLAN + * MAC is sending frames, try to avoid changing channels for + * passive scanning when a host-generated frame is being + * transmitted */ + if (test_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) { + printk(KERN_DEBUG "%s: passive scan detected pending " + "TX - delaying\n", dev->name); + local->passive_scan_timer.expires = jiffies + HZ / 10; + add_timer(&local->passive_scan_timer); + return; + } + + do { + local->passive_scan_channel++; + if (local->passive_scan_channel > 14) + local->passive_scan_channel = 1; + max_tries--; + } while (!(local->channel_mask & + (1 << (local->passive_scan_channel - 1))) && + max_tries > 0); + + if (max_tries == 0) { + printk(KERN_INFO "%s: no allowed passive scan channels" + " found\n", dev->name); + return; + } + + printk(KERN_DEBUG "%s: passive scan channel %d\n", + dev->name, local->passive_scan_channel); + channel = local->passive_scan_channel; + local->passive_scan_state = PASSIVE_SCAN_WAIT; + local->passive_scan_timer.expires = jiffies + HZ / 10; + } else { + channel = local->channel; + local->passive_scan_state = PASSIVE_SCAN_LISTEN; + local->passive_scan_timer.expires = jiffies + + local->passive_scan_interval * HZ; + } + + if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_CHANGE_CHANNEL << 8), + channel, NULL, NULL)) + printk(KERN_ERR "%s: passive scan channel set %d " + "failed\n", dev->name, channel); + + add_timer(&local->passive_scan_timer); +} + + +/* Called only as a scheduled task when communications quality values should + * be updated. */ +static void handle_comms_qual_update(void *data) +{ + local_info_t *local = data; + prism2_update_comms_qual(local->dev); +} + + +/* Software watchdog - called as a timer. Hardware interrupt (Tick event) is + * used to monitor that local->last_tick_timer is being updated. If not, + * interrupt busy-loop is assumed and driver tries to recover by masking out + * some events. */ +static void hostap_tick_timer(unsigned long data) +{ + static unsigned long last_inquire = 0; + local_info_t *local = (local_info_t *) data; + local->last_tick_timer = jiffies; + + /* Inquire CommTallies every 10 seconds to keep the statistics updated + * more often during low load and when using 32-bit tallies. */ + if ((!last_inquire || time_after(jiffies, last_inquire + 10 * HZ)) && + !local->hw_downloading && local->hw_ready && + !local->hw_resetting && local->dev_enabled) { + hfa384x_cmd_callback(local->dev, HFA384X_CMDCODE_INQUIRE, + HFA384X_INFO_COMMTALLIES, NULL, NULL); + last_inquire = jiffies; + } + + if ((local->last_comms_qual_update == 0 || + time_after(jiffies, local->last_comms_qual_update + 10 * HZ)) && + (local->iw_mode == IW_MODE_INFRA || + local->iw_mode == IW_MODE_ADHOC)) { + schedule_work(&local->comms_qual_update); + } + + local->tick_timer.expires = jiffies + 2 * HZ; + add_timer(&local->tick_timer); +} + + +#ifndef PRISM2_NO_PROCFS_DEBUG +static int prism2_registers_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + + if (off != 0) { + *eof = 1; + return 0; + } + +#define SHOW_REG(n) \ +p += sprintf(p, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF)) + + SHOW_REG(CMD); + SHOW_REG(PARAM0); + SHOW_REG(PARAM1); + SHOW_REG(PARAM2); + SHOW_REG(STATUS); + SHOW_REG(RESP0); + SHOW_REG(RESP1); + SHOW_REG(RESP2); + SHOW_REG(INFOFID); + SHOW_REG(CONTROL); + SHOW_REG(SELECT0); + SHOW_REG(SELECT1); + SHOW_REG(OFFSET0); + SHOW_REG(OFFSET1); + SHOW_REG(RXFID); + SHOW_REG(ALLOCFID); + SHOW_REG(TXCOMPLFID); + SHOW_REG(SWSUPPORT0); + SHOW_REG(SWSUPPORT1); + SHOW_REG(SWSUPPORT2); + SHOW_REG(EVSTAT); + SHOW_REG(INTEN); + SHOW_REG(EVACK); + /* Do not read data registers, because they change the state of the + * MAC (offset += 2) */ + /* SHOW_REG(DATA0); */ + /* SHOW_REG(DATA1); */ + SHOW_REG(AUXPAGE); + SHOW_REG(AUXOFFSET); + /* SHOW_REG(AUXDATA); */ +#ifdef PRISM2_PCI + SHOW_REG(PCICOR); + SHOW_REG(PCIHCR); + SHOW_REG(PCI_M0_ADDRH); + SHOW_REG(PCI_M0_ADDRL); + SHOW_REG(PCI_M0_LEN); + SHOW_REG(PCI_M0_CTL); + SHOW_REG(PCI_STATUS); + SHOW_REG(PCI_M1_ADDRH); + SHOW_REG(PCI_M1_ADDRL); + SHOW_REG(PCI_M1_LEN); + SHOW_REG(PCI_M1_CTL); +#endif /* PRISM2_PCI */ + + return (p - page); +} +#endif /* PRISM2_NO_PROCFS_DEBUG */ + + +struct set_tim_data { + struct list_head list; + int aid; + int set; +}; + +static int prism2_set_tim(struct net_device *dev, int aid, int set) +{ + struct list_head *ptr; + struct set_tim_data *new_entry; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + new_entry = (struct set_tim_data *) + kmalloc(sizeof(*new_entry), GFP_ATOMIC); + if (new_entry == NULL) { + printk(KERN_DEBUG "%s: prism2_set_tim: kmalloc failed\n", + local->dev->name); + return -ENOMEM; + } + memset(new_entry, 0, sizeof(*new_entry)); + new_entry->aid = aid; + new_entry->set = set; + + spin_lock_bh(&local->set_tim_lock); + list_for_each(ptr, &local->set_tim_list) { + struct set_tim_data *entry = + list_entry(ptr, struct set_tim_data, list); + if (entry->aid == aid) { + PDEBUG(DEBUG_PS2, "%s: prism2_set_tim: aid=%d " + "set=%d ==> %d\n", + local->dev->name, aid, entry->set, set); + entry->set = set; + kfree(new_entry); + new_entry = NULL; + break; + } + } + if (new_entry) + list_add_tail(&new_entry->list, &local->set_tim_list); + spin_unlock_bh(&local->set_tim_lock); + + schedule_work(&local->set_tim_queue); + + return 0; +} + + +static void handle_set_tim_queue(void *data) +{ + local_info_t *local = (local_info_t *) data; + struct set_tim_data *entry; + u16 val; + + for (;;) { + entry = NULL; + spin_lock_bh(&local->set_tim_lock); + if (!list_empty(&local->set_tim_list)) { + entry = list_entry(local->set_tim_list.next, + struct set_tim_data, list); + list_del(&entry->list); + } + spin_unlock_bh(&local->set_tim_lock); + if (!entry) + break; + + PDEBUG(DEBUG_PS2, "%s: handle_set_tim_queue: aid=%d set=%d\n", + local->dev->name, entry->aid, entry->set); + + val = entry->aid; + if (entry->set) + val |= 0x8000; + if (hostap_set_word(local->dev, HFA384X_RID_CNFTIMCTRL, val)) { + printk(KERN_DEBUG "%s: set_tim failed (aid=%d " + "set=%d)\n", + local->dev->name, entry->aid, entry->set); + } + + kfree(entry); + } +} + + +static void prism2_clear_set_tim_queue(local_info_t *local) +{ + struct list_head *ptr, *n; + + list_for_each_safe(ptr, n, &local->set_tim_list) { + struct set_tim_data *entry; + entry = list_entry(ptr, struct set_tim_data, list); + list_del(&entry->list); + kfree(entry); + } +} + + +static struct net_device * +prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx) +{ + struct net_device *dev; + struct hostap_interface *iface; + struct local_info *local; + int len, i, ret; + + if (funcs == NULL) + return NULL; + + len = strlen(dev_template); + if (len >= IFNAMSIZ || strstr(dev_template, "%d") == NULL) { + printk(KERN_WARNING "hostap: Invalid dev_template='%s'\n", + dev_template); + return NULL; + } + + len = sizeof(struct hostap_interface) + + 3 + sizeof(struct local_info) + + 3 + sizeof(struct ap_data); + + dev = alloc_etherdev(len); + if (dev == NULL) + return NULL; + + iface = netdev_priv(dev); + local = (struct local_info *) ((((long) (iface + 1)) + 3) & ~3); + local->ap = (struct ap_data *) ((((long) (local + 1)) + 3) & ~3); + local->dev = iface->dev = dev; + iface->local = local; + iface->type = HOSTAP_INTERFACE_MASTER; + INIT_LIST_HEAD(&local->hostap_interfaces); + + local->hw_module = THIS_MODULE; + +#ifdef PRISM2_IO_DEBUG + local->io_debug_enabled = 1; +#endif /* PRISM2_IO_DEBUG */ + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + local->bus_m0_buf = (u8 *) kmalloc(sizeof(struct hfa384x_tx_frame) + + PRISM2_DATA_MAXLEN, GFP_DMA); + if (local->bus_m0_buf == NULL) + goto fail; +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + local->func = funcs; + local->func->cmd = hfa384x_cmd; + local->func->read_regs = hfa384x_read_regs; + local->func->get_rid = hfa384x_get_rid; + local->func->set_rid = hfa384x_set_rid; + local->func->hw_enable = prism2_hw_enable; + local->func->hw_config = prism2_hw_config; + local->func->hw_reset = prism2_hw_reset; + local->func->hw_shutdown = prism2_hw_shutdown; + local->func->reset_port = prism2_reset_port; + local->func->schedule_reset = prism2_schedule_reset; +#ifdef PRISM2_DOWNLOAD_SUPPORT + local->func->read_aux = prism2_download_aux_dump; + local->func->download = prism2_download; +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + local->func->tx = prism2_tx_80211; + local->func->set_tim = prism2_set_tim; + local->func->need_tx_headroom = 0; /* no need to add txdesc in + * skb->data (FIX: maybe for DMA bus + * mastering? */ + + local->mtu = mtu; + + rwlock_init(&local->iface_lock); + spin_lock_init(&local->txfidlock); + spin_lock_init(&local->cmdlock); + spin_lock_init(&local->baplock); + spin_lock_init(&local->lock); + init_MUTEX(&local->rid_bap_sem); + + if (card_idx < 0 || card_idx >= MAX_PARM_DEVICES) + card_idx = 0; + local->card_idx = card_idx; + + len = strlen(essid); + memcpy(local->essid, essid, + len > MAX_SSID_LEN ? MAX_SSID_LEN : len); + local->essid[MAX_SSID_LEN] = '\0'; + i = GET_INT_PARM(iw_mode, card_idx); + if ((i >= IW_MODE_ADHOC && i <= IW_MODE_REPEAT) || + i == IW_MODE_MONITOR) { + local->iw_mode = i; + } else { + printk(KERN_WARNING "prism2: Unknown iw_mode %d; using " + "IW_MODE_MASTER\n", i); + local->iw_mode = IW_MODE_MASTER; + } + local->channel = GET_INT_PARM(channel, card_idx); + local->beacon_int = GET_INT_PARM(beacon_int, card_idx); + local->dtim_period = GET_INT_PARM(dtim_period, card_idx); + local->wds_max_connections = 16; + local->tx_control = HFA384X_TX_CTRL_FLAGS; + local->manual_retry_count = -1; + local->rts_threshold = 2347; + local->fragm_threshold = 2346; + local->rssi_to_dBm = 100; /* default; to be overriden by + * cnfDbmAdjust, if available */ + local->auth_algs = PRISM2_AUTH_OPEN | PRISM2_AUTH_SHARED_KEY; + local->sram_type = -1; +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + local->bus_master_threshold_rx = GET_INT_PARM(bus_master_threshold_rx, + card_idx); + local->bus_master_threshold_tx = GET_INT_PARM(bus_master_threshold_tx, + card_idx); +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + + /* Initialize task queue structures */ + INIT_WORK(&local->reset_queue, handle_reset_queue, local); + INIT_WORK(&local->set_multicast_list_queue, + hostap_set_multicast_list_queue, local->dev); + + INIT_WORK(&local->set_tim_queue, handle_set_tim_queue, local); + INIT_LIST_HEAD(&local->set_tim_list); + spin_lock_init(&local->set_tim_lock); + + INIT_WORK(&local->comms_qual_update, handle_comms_qual_update, local); + + /* Initialize tasklets for handling hardware IRQ related operations + * outside hw IRQ handler */ +#define HOSTAP_TASKLET_INIT(q, f, d) \ +do { memset((q), 0, sizeof(*(q))); (q)->func = (f); (q)->data = (d); } \ +while (0) + HOSTAP_TASKLET_INIT(&local->bap_tasklet, hostap_bap_tasklet, + (unsigned long) local); + + HOSTAP_TASKLET_INIT(&local->info_tasklet, hostap_info_tasklet, + (unsigned long) local); + hostap_info_init(local); + + HOSTAP_TASKLET_INIT(&local->rx_tasklet, + hostap_rx_tasklet, (unsigned long) local); + skb_queue_head_init(&local->rx_list); + + HOSTAP_TASKLET_INIT(&local->sta_tx_exc_tasklet, + hostap_sta_tx_exc_tasklet, (unsigned long) local); + skb_queue_head_init(&local->sta_tx_exc_list); + + INIT_LIST_HEAD(&local->cmd_queue); + init_waitqueue_head(&local->hostscan_wq); + INIT_LIST_HEAD(&local->crypt_deinit_list); + init_timer(&local->crypt_deinit_timer); + local->crypt_deinit_timer.data = (unsigned long) local; + local->crypt_deinit_timer.function = prism2_crypt_deinit_handler; + + init_timer(&local->passive_scan_timer); + local->passive_scan_timer.data = (unsigned long) local; + local->passive_scan_timer.function = hostap_passive_scan; + + init_timer(&local->tick_timer); + local->tick_timer.data = (unsigned long) local; + local->tick_timer.function = hostap_tick_timer; + local->tick_timer.expires = jiffies + 2 * HZ; + add_timer(&local->tick_timer); + + INIT_LIST_HEAD(&local->bss_list); + + hostap_setup_dev(dev, local, 1); + local->saved_eth_header_parse = dev->hard_header_parse; + + dev->hard_start_xmit = hostap_master_start_xmit; + dev->type = ARPHRD_IEEE80211; + dev->hard_header_parse = hostap_80211_header_parse; + + rtnl_lock(); + ret = dev_alloc_name(dev, "wifi%d"); + if (ret >= 0) + ret = register_netdevice(dev); + rtnl_unlock(); + if (ret < 0) { + printk(KERN_WARNING "%s: register netdevice failed!\n", + dev_info); + goto fail; + } + printk(KERN_INFO "%s: Registered netdevice %s\n", dev_info, dev->name); + +#ifndef PRISM2_NO_PROCFS_DEBUG + create_proc_read_entry("registers", 0, local->proc, + prism2_registers_proc_read, local); +#endif /* PRISM2_NO_PROCFS_DEBUG */ + + hostap_init_data(local); + return dev; + + fail: +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + kfree(local->bus_m0_buf); +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + free_netdev(dev); + return NULL; +} + + +static int hostap_hw_ready(struct net_device *dev) +{ + struct hostap_interface *iface; + struct local_info *local; + + iface = netdev_priv(dev); + local = iface->local; + local->ddev = hostap_add_interface(local, HOSTAP_INTERFACE_MAIN, 0, + "", dev_template); + + if (local->ddev) { + if (local->iw_mode == IW_MODE_INFRA || + local->iw_mode == IW_MODE_ADHOC) { + netif_carrier_off(local->dev); + netif_carrier_off(local->ddev); + } + hostap_init_proc(local); + hostap_init_ap_proc(local); + return 0; + } + + return -1; +} + + +static void prism2_free_local_data(struct net_device *dev) +{ + struct hostap_tx_callback_info *tx_cb, *tx_cb_prev; + int i; + struct hostap_interface *iface; + struct local_info *local; + struct list_head *ptr, *n; + + if (dev == NULL) + return; + + iface = netdev_priv(dev); + local = iface->local; + + flush_scheduled_work(); + + if (timer_pending(&local->crypt_deinit_timer)) + del_timer(&local->crypt_deinit_timer); + prism2_crypt_deinit_entries(local, 1); + + if (timer_pending(&local->passive_scan_timer)) + del_timer(&local->passive_scan_timer); + + if (timer_pending(&local->tick_timer)) + del_timer(&local->tick_timer); + + prism2_clear_cmd_queue(local); + + skb_queue_purge(&local->info_list); + skb_queue_purge(&local->rx_list); + skb_queue_purge(&local->sta_tx_exc_list); + + if (local->dev_enabled) + prism2_callback(local, PRISM2_CALLBACK_DISABLE); + + for (i = 0; i < WEP_KEYS; i++) { + struct prism2_crypt_data *crypt = local->crypt[i]; + if (crypt) { + if (crypt->ops) + crypt->ops->deinit(crypt->priv); + kfree(crypt); + local->crypt[i] = NULL; + } + } + + if (local->ap != NULL) + hostap_free_data(local->ap); + +#ifndef PRISM2_NO_PROCFS_DEBUG + if (local->proc != NULL) + remove_proc_entry("registers", local->proc); +#endif /* PRISM2_NO_PROCFS_DEBUG */ + hostap_remove_proc(local); + + tx_cb = local->tx_callback; + while (tx_cb != NULL) { + tx_cb_prev = tx_cb; + tx_cb = tx_cb->next; + kfree(tx_cb_prev); + } + + hostap_set_hostapd(local, 0, 0); + hostap_set_hostapd_sta(local, 0, 0); + + for (i = 0; i < PRISM2_FRAG_CACHE_LEN; i++) { + if (local->frag_cache[i].skb != NULL) + dev_kfree_skb(local->frag_cache[i].skb); + } + +#ifdef PRISM2_DOWNLOAD_SUPPORT + prism2_download_free_data(local->dl_pri); + prism2_download_free_data(local->dl_sec); +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + list_for_each_safe(ptr, n, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type == HOSTAP_INTERFACE_MASTER) { + /* special handling for this interface below */ + continue; + } + hostap_remove_interface(iface->dev, 0, 1); + } + + prism2_clear_set_tim_queue(local); + + list_for_each_safe(ptr, n, &local->bss_list) { + struct hostap_bss_info *bss = + list_entry(ptr, struct hostap_bss_info, list); + kfree(bss); + } + +#if defined(PRISM2_PCI) && defined(PRISM2_BUS_MASTER) + kfree(local->bus_m0_buf); +#endif /* PRISM2_PCI and PRISM2_BUS_MASTER */ + kfree(local->pda); + kfree(local->last_scan_results); + kfree(local->generic_elem); + + unregister_netdev(local->dev); + free_netdev(local->dev); +} + + +#ifndef PRISM2_PLX +static void prism2_suspend(struct net_device *dev) +{ + struct hostap_interface *iface; + struct local_info *local; + union iwreq_data wrqu; + + iface = dev->priv; + local = iface->local; + + /* Send disconnect event, e.g., to trigger reassociation after resume + * if wpa_supplicant is used. */ + memset(&wrqu, 0, sizeof(wrqu)); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL); + + /* Disable hardware and firmware */ + prism2_hw_shutdown(dev, 0); +} +#endif /* PRISM2_PLX */ + + +/* These might at some point be compiled separately and used as separate + * kernel modules or linked into one */ +#ifdef PRISM2_DOWNLOAD_SUPPORT +#include "hostap_download.c" +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + +#ifdef PRISM2_CALLBACK +/* External hostap_callback.c file can be used to, e.g., blink activity led. + * This can use platform specific code and must define prism2_callback() + * function (if PRISM2_CALLBACK is not defined, these function calls are not + * used. */ +#include "hostap_callback.c" +#endif /* PRISM2_CALLBACK */ diff --git a/drivers/net/wireless/hostap/hostap_info.c b/drivers/net/wireless/hostap/hostap_info.c new file mode 100644 index 0000000..cf9e089 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_info.c @@ -0,0 +1,478 @@ +/* Host AP driver Info Frame processing (part of hostap.o module) */ + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_commtallies16(local_info_t *local, unsigned char *buf, + int left) +{ + struct hfa384x_comm_tallies *tallies; + + if (left < sizeof(struct hfa384x_comm_tallies)) { + printk(KERN_DEBUG "%s: too short (len=%d) commtallies " + "info frame\n", local->dev->name, left); + return; + } + + tallies = (struct hfa384x_comm_tallies *) buf; +#define ADD_COMM_TALLIES(name) \ +local->comm_tallies.name += le16_to_cpu(tallies->name) + ADD_COMM_TALLIES(tx_unicast_frames); + ADD_COMM_TALLIES(tx_multicast_frames); + ADD_COMM_TALLIES(tx_fragments); + ADD_COMM_TALLIES(tx_unicast_octets); + ADD_COMM_TALLIES(tx_multicast_octets); + ADD_COMM_TALLIES(tx_deferred_transmissions); + ADD_COMM_TALLIES(tx_single_retry_frames); + ADD_COMM_TALLIES(tx_multiple_retry_frames); + ADD_COMM_TALLIES(tx_retry_limit_exceeded); + ADD_COMM_TALLIES(tx_discards); + ADD_COMM_TALLIES(rx_unicast_frames); + ADD_COMM_TALLIES(rx_multicast_frames); + ADD_COMM_TALLIES(rx_fragments); + ADD_COMM_TALLIES(rx_unicast_octets); + ADD_COMM_TALLIES(rx_multicast_octets); + ADD_COMM_TALLIES(rx_fcs_errors); + ADD_COMM_TALLIES(rx_discards_no_buffer); + ADD_COMM_TALLIES(tx_discards_wrong_sa); + ADD_COMM_TALLIES(rx_discards_wep_undecryptable); + ADD_COMM_TALLIES(rx_message_in_msg_fragments); + ADD_COMM_TALLIES(rx_message_in_bad_msg_fragments); +#undef ADD_COMM_TALLIES +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_commtallies32(local_info_t *local, unsigned char *buf, + int left) +{ + struct hfa384x_comm_tallies32 *tallies; + + if (left < sizeof(struct hfa384x_comm_tallies32)) { + printk(KERN_DEBUG "%s: too short (len=%d) commtallies32 " + "info frame\n", local->dev->name, left); + return; + } + + tallies = (struct hfa384x_comm_tallies32 *) buf; +#define ADD_COMM_TALLIES(name) \ +local->comm_tallies.name += le32_to_cpu(tallies->name) + ADD_COMM_TALLIES(tx_unicast_frames); + ADD_COMM_TALLIES(tx_multicast_frames); + ADD_COMM_TALLIES(tx_fragments); + ADD_COMM_TALLIES(tx_unicast_octets); + ADD_COMM_TALLIES(tx_multicast_octets); + ADD_COMM_TALLIES(tx_deferred_transmissions); + ADD_COMM_TALLIES(tx_single_retry_frames); + ADD_COMM_TALLIES(tx_multiple_retry_frames); + ADD_COMM_TALLIES(tx_retry_limit_exceeded); + ADD_COMM_TALLIES(tx_discards); + ADD_COMM_TALLIES(rx_unicast_frames); + ADD_COMM_TALLIES(rx_multicast_frames); + ADD_COMM_TALLIES(rx_fragments); + ADD_COMM_TALLIES(rx_unicast_octets); + ADD_COMM_TALLIES(rx_multicast_octets); + ADD_COMM_TALLIES(rx_fcs_errors); + ADD_COMM_TALLIES(rx_discards_no_buffer); + ADD_COMM_TALLIES(tx_discards_wrong_sa); + ADD_COMM_TALLIES(rx_discards_wep_undecryptable); + ADD_COMM_TALLIES(rx_message_in_msg_fragments); + ADD_COMM_TALLIES(rx_message_in_bad_msg_fragments); +#undef ADD_COMM_TALLIES +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_commtallies(local_info_t *local, unsigned char *buf, + int left) +{ + if (local->tallies32) + prism2_info_commtallies32(local, buf, left); + else + prism2_info_commtallies16(local, buf, left); +} + + +#ifndef PRISM2_NO_STATION_MODES +#ifndef PRISM2_NO_DEBUG +static const char* hfa384x_linkstatus_str(u16 linkstatus) +{ + switch (linkstatus) { + case HFA384X_LINKSTATUS_CONNECTED: + return "Connected"; + case HFA384X_LINKSTATUS_DISCONNECTED: + return "Disconnected"; + case HFA384X_LINKSTATUS_AP_CHANGE: + return "Access point change"; + case HFA384X_LINKSTATUS_AP_OUT_OF_RANGE: + return "Access point out of range"; + case HFA384X_LINKSTATUS_AP_IN_RANGE: + return "Access point in range"; + case HFA384X_LINKSTATUS_ASSOC_FAILED: + return "Association failed"; + default: + return "Unknown"; + } +} +#endif /* PRISM2_NO_DEBUG */ + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_linkstatus(local_info_t *local, unsigned char *buf, + int left) +{ + u16 val; + int non_sta_mode; + + /* Alloc new JoinRequests to occur since LinkStatus for the previous + * has been received */ + local->last_join_time = 0; + + if (left != 2) { + printk(KERN_DEBUG "%s: invalid linkstatus info frame " + "length %d\n", local->dev->name, left); + return; + } + + non_sta_mode = local->iw_mode == IW_MODE_MASTER || + local->iw_mode == IW_MODE_REPEAT || + local->iw_mode == IW_MODE_MONITOR; + + val = buf[0] | (buf[1] << 8); + if (!non_sta_mode || val != HFA384X_LINKSTATUS_DISCONNECTED) { + PDEBUG(DEBUG_EXTRA, "%s: LinkStatus=%d (%s)\n", + local->dev->name, val, hfa384x_linkstatus_str(val)); + } + + if (non_sta_mode) { + netif_carrier_on(local->dev); + netif_carrier_on(local->ddev); + return; + } + + /* Get current BSSID later in scheduled task */ + set_bit(PRISM2_INFO_PENDING_LINKSTATUS, &local->pending_info); + local->prev_link_status = val; + schedule_work(&local->info_queue); +} + + +static void prism2_host_roaming(local_info_t *local) +{ + struct hfa384x_join_request req; + struct net_device *dev = local->dev; + struct hfa384x_scan_result *selected, *entry; + int i; + unsigned long flags; + + if (local->last_join_time && + time_before(jiffies, local->last_join_time + 10 * HZ)) { + PDEBUG(DEBUG_EXTRA, "%s: last join request has not yet been " + "completed - waiting for it before issuing new one\n", + dev->name); + return; + } + + /* ScanResults are sorted: first ESS results in decreasing signal + * quality then IBSS results in similar order. + * Trivial roaming policy: just select the first entry. + * This could probably be improved by adding hysteresis to limit + * number of handoffs, etc. + * + * Could do periodic RID_SCANREQUEST or Inquire F101 to get new + * ScanResults */ + spin_lock_irqsave(&local->lock, flags); + if (local->last_scan_results == NULL || + local->last_scan_results_count == 0) { + spin_unlock_irqrestore(&local->lock, flags); + PDEBUG(DEBUG_EXTRA, "%s: no scan results for host roaming\n", + dev->name); + return; + } + + selected = &local->last_scan_results[0]; + + if (local->preferred_ap[0] || local->preferred_ap[1] || + local->preferred_ap[2] || local->preferred_ap[3] || + local->preferred_ap[4] || local->preferred_ap[5]) { + /* Try to find preferred AP */ + PDEBUG(DEBUG_EXTRA, "%s: Preferred AP BSSID " MACSTR "\n", + dev->name, MAC2STR(local->preferred_ap)); + for (i = 0; i < local->last_scan_results_count; i++) { + entry = &local->last_scan_results[i]; + if (memcmp(local->preferred_ap, entry->bssid, 6) == 0) + { + PDEBUG(DEBUG_EXTRA, "%s: using preferred AP " + "selection\n", dev->name); + selected = entry; + break; + } + } + } + + memcpy(req.bssid, selected->bssid, 6); + req.channel = selected->chid; + spin_unlock_irqrestore(&local->lock, flags); + + PDEBUG(DEBUG_EXTRA, "%s: JoinRequest: BSSID=" MACSTR " channel=%d\n", + dev->name, MAC2STR(req.bssid), le16_to_cpu(req.channel)); + if (local->func->set_rid(dev, HFA384X_RID_JOINREQUEST, &req, + sizeof(req))) { + printk(KERN_DEBUG "%s: JoinRequest failed\n", dev->name); + } + local->last_join_time = jiffies; +} + + +static void hostap_report_scan_complete(local_info_t *local) +{ + union iwreq_data wrqu; + + /* Inform user space about new scan results (just empty event, + * SIOCGIWSCAN can be used to fetch data */ + wrqu.data.length = 0; + wrqu.data.flags = 0; + wireless_send_event(local->dev, SIOCGIWSCAN, &wrqu, NULL); + + /* Allow SIOCGIWSCAN handling to occur since we have received + * scanning result */ + local->scan_timestamp = 0; +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_scanresults(local_info_t *local, unsigned char *buf, + int left) +{ + u16 *pos; + int new_count; + unsigned long flags; + struct hfa384x_scan_result *results, *prev; + + if (left < 4) { + printk(KERN_DEBUG "%s: invalid scanresult info frame " + "length %d\n", local->dev->name, left); + return; + } + + pos = (u16 *) buf; + pos++; + pos++; + left -= 4; + + new_count = left / sizeof(struct hfa384x_scan_result); + results = kmalloc(new_count * sizeof(struct hfa384x_scan_result), + GFP_ATOMIC); + if (results == NULL) + return; + memcpy(results, pos, new_count * sizeof(struct hfa384x_scan_result)); + + spin_lock_irqsave(&local->lock, flags); + local->last_scan_type = PRISM2_SCAN; + prev = local->last_scan_results; + local->last_scan_results = results; + local->last_scan_results_count = new_count; + spin_unlock_irqrestore(&local->lock, flags); + kfree(prev); + + hostap_report_scan_complete(local); + + /* Perform rest of ScanResults handling later in scheduled task */ + set_bit(PRISM2_INFO_PENDING_SCANRESULTS, &local->pending_info); + schedule_work(&local->info_queue); +} + + +/* Called only as a tasklet (software IRQ) */ +static void prism2_info_hostscanresults(local_info_t *local, + unsigned char *buf, int left) +{ + int i, result_size, copy_len, new_count; + struct hfa384x_hostscan_result *results, *prev; + unsigned long flags; + u16 *pos; + u8 *ptr; + + wake_up_interruptible(&local->hostscan_wq); + + if (left < 4) { + printk(KERN_DEBUG "%s: invalid hostscanresult info frame " + "length %d\n", local->dev->name, left); + return; + } + + pos = (u16 *) buf; + copy_len = result_size = le16_to_cpu(*pos); + if (result_size == 0) { + printk(KERN_DEBUG "%s: invalid result_size (0) in " + "hostscanresults\n", local->dev->name); + return; + } + if (copy_len > sizeof(struct hfa384x_hostscan_result)) + copy_len = sizeof(struct hfa384x_hostscan_result); + + pos++; + pos++; + left -= 4; + ptr = (u8 *) pos; + + new_count = left / result_size; + results = kmalloc(new_count * sizeof(struct hfa384x_hostscan_result), + GFP_ATOMIC); + if (results == NULL) + return; + memset(results, 0, new_count * sizeof(struct hfa384x_hostscan_result)); + + for (i = 0; i < new_count; i++) { + memcpy(&results[i], ptr, copy_len); + ptr += result_size; + left -= result_size; + } + + if (left) { + printk(KERN_DEBUG "%s: short HostScan result entry (%d/%d)\n", + local->dev->name, left, result_size); + } + + spin_lock_irqsave(&local->lock, flags); + local->last_scan_type = PRISM2_HOSTSCAN; + prev = local->last_hostscan_results; + local->last_hostscan_results = results; + local->last_hostscan_results_count = new_count; + spin_unlock_irqrestore(&local->lock, flags); + kfree(prev); + + hostap_report_scan_complete(local); +} +#endif /* PRISM2_NO_STATION_MODES */ + + +/* Called only as a tasklet (software IRQ) */ +void hostap_info_process(local_info_t *local, struct sk_buff *skb) +{ + struct hfa384x_info_frame *info; + unsigned char *buf; + int left; +#ifndef PRISM2_NO_DEBUG + int i; +#endif /* PRISM2_NO_DEBUG */ + + info = (struct hfa384x_info_frame *) skb->data; + buf = skb->data + sizeof(*info); + left = skb->len - sizeof(*info); + + switch (info->type) { + case HFA384X_INFO_COMMTALLIES: + prism2_info_commtallies(local, buf, left); + break; + +#ifndef PRISM2_NO_STATION_MODES + case HFA384X_INFO_LINKSTATUS: + prism2_info_linkstatus(local, buf, left); + break; + + case HFA384X_INFO_SCANRESULTS: + prism2_info_scanresults(local, buf, left); + break; + + case HFA384X_INFO_HOSTSCANRESULTS: + prism2_info_hostscanresults(local, buf, left); + break; +#endif /* PRISM2_NO_STATION_MODES */ + +#ifndef PRISM2_NO_DEBUG + default: + PDEBUG(DEBUG_EXTRA, "%s: INFO - len=%d type=0x%04x\n", + local->dev->name, info->len, info->type); + PDEBUG(DEBUG_EXTRA, "Unknown info frame:"); + for (i = 0; i < (left < 100 ? left : 100); i++) + PDEBUG2(DEBUG_EXTRA, " %02x", buf[i]); + PDEBUG2(DEBUG_EXTRA, "\n"); + break; +#endif /* PRISM2_NO_DEBUG */ + } +} + + +#ifndef PRISM2_NO_STATION_MODES +static void handle_info_queue_linkstatus(local_info_t *local) +{ + int val = local->prev_link_status; + int connected; + union iwreq_data wrqu; + + connected = + val == HFA384X_LINKSTATUS_CONNECTED || + val == HFA384X_LINKSTATUS_AP_CHANGE || + val == HFA384X_LINKSTATUS_AP_IN_RANGE; + + if (local->func->get_rid(local->dev, HFA384X_RID_CURRENTBSSID, + local->bssid, ETH_ALEN, 1) < 0) { + printk(KERN_DEBUG "%s: could not read CURRENTBSSID after " + "LinkStatus event\n", local->dev->name); + } else { + PDEBUG(DEBUG_EXTRA, "%s: LinkStatus: BSSID=" MACSTR "\n", + local->dev->name, + MAC2STR((unsigned char *) local->bssid)); + if (local->wds_type & HOSTAP_WDS_AP_CLIENT) + hostap_add_sta(local->ap, local->bssid); + } + + /* Get BSSID if we have a valid AP address */ + if (connected) { + netif_carrier_on(local->dev); + netif_carrier_on(local->ddev); + memcpy(wrqu.ap_addr.sa_data, local->bssid, ETH_ALEN); + } else { + netif_carrier_off(local->dev); + netif_carrier_off(local->ddev); + memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); + } + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + + /* + * Filter out sequential disconnect events in order not to cause a + * flood of SIOCGIWAP events that have a race condition with EAPOL + * frames and can confuse wpa_supplicant about the current association + * status. + */ + if (connected || local->prev_linkstatus_connected) + wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL); + local->prev_linkstatus_connected = connected; +} + + +static void handle_info_queue_scanresults(local_info_t *local) +{ + if (local->host_roaming == 1 && local->iw_mode == IW_MODE_INFRA) + prism2_host_roaming(local); +} + + +/* Called only as scheduled task after receiving info frames (used to avoid + * pending too much time in HW IRQ handler). */ +static void handle_info_queue(void *data) +{ + local_info_t *local = (local_info_t *) data; + + if (test_and_clear_bit(PRISM2_INFO_PENDING_LINKSTATUS, + &local->pending_info)) + handle_info_queue_linkstatus(local); + + if (test_and_clear_bit(PRISM2_INFO_PENDING_SCANRESULTS, + &local->pending_info)) + handle_info_queue_scanresults(local); +} +#endif /* PRISM2_NO_STATION_MODES */ + + +void hostap_info_init(local_info_t *local) +{ + skb_queue_head_init(&local->info_list); +#ifndef PRISM2_NO_STATION_MODES + INIT_WORK(&local->info_queue, handle_info_queue, local); +#endif /* PRISM2_NO_STATION_MODES */ +} + + +EXPORT_SYMBOL(hostap_info_init); +EXPORT_SYMBOL(hostap_info_process); diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c new file mode 100644 index 0000000..e545ac9c --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -0,0 +1,4123 @@ +/* ioctl() (mostly Linux Wireless Extensions) routines for Host AP driver */ + +#ifdef in_atomic +/* Get kernel_locked() for in_atomic() */ +#include +#endif +#include + + +static struct iw_statistics *hostap_get_wireless_stats(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct iw_statistics *wstats; + + iface = netdev_priv(dev); + local = iface->local; + + /* Why are we doing that ? Jean II */ + if (iface->type != HOSTAP_INTERFACE_MAIN) + return NULL; + + wstats = &local->wstats; + + wstats->status = 0; + wstats->discard.code = + local->comm_tallies.rx_discards_wep_undecryptable; + wstats->discard.misc = + local->comm_tallies.rx_fcs_errors + + local->comm_tallies.rx_discards_no_buffer + + local->comm_tallies.tx_discards_wrong_sa; + + wstats->discard.retries = + local->comm_tallies.tx_retry_limit_exceeded; + wstats->discard.fragment = + local->comm_tallies.rx_message_in_bad_msg_fragments; + + if (local->iw_mode != IW_MODE_MASTER && + local->iw_mode != IW_MODE_REPEAT) { + int update = 1; +#ifdef in_atomic + /* RID reading might sleep and it must not be called in + * interrupt context or while atomic. However, this + * function seems to be called while atomic (at least in Linux + * 2.5.59). Update signal quality values only if in suitable + * context. Otherwise, previous values read from tick timer + * will be used. */ + if (in_atomic()) + update = 0; +#endif /* in_atomic */ + + if (update && prism2_update_comms_qual(dev) == 0) + wstats->qual.updated = 7; + + wstats->qual.qual = local->comms_qual; + wstats->qual.level = local->avg_signal; + wstats->qual.noise = local->avg_noise; + } else { + wstats->qual.qual = 0; + wstats->qual.level = 0; + wstats->qual.noise = 0; + wstats->qual.updated = 0; + } + + return wstats; +} + + +static int prism2_get_datarates(struct net_device *dev, u8 *rates) +{ + struct hostap_interface *iface; + local_info_t *local; + u8 buf[12]; + int len; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + len = local->func->get_rid(dev, HFA384X_RID_SUPPORTEDDATARATES, buf, + sizeof(buf), 0); + if (len < 2) + return 0; + + val = le16_to_cpu(*(u16 *) buf); /* string length */ + + if (len - 2 < val || val > 10) + return 0; + + memcpy(rates, buf + 2, val); + return val; +} + + +static int prism2_get_name(struct net_device *dev, + struct iw_request_info *info, + char *name, char *extra) +{ + u8 rates[10]; + int len, i, over2 = 0; + + len = prism2_get_datarates(dev, rates); + + for (i = 0; i < len; i++) { + if (rates[i] == 0x0b || rates[i] == 0x16) { + over2 = 1; + break; + } + } + + strcpy(name, over2 ? "IEEE 802.11b" : "IEEE 802.11-DS"); + + return 0; +} + + +static void prism2_crypt_delayed_deinit(local_info_t *local, + struct prism2_crypt_data **crypt) +{ + struct prism2_crypt_data *tmp; + unsigned long flags; + + tmp = *crypt; + *crypt = NULL; + + if (tmp == NULL) + return; + + /* must not run ops->deinit() while there may be pending encrypt or + * decrypt operations. Use a list of delayed deinits to avoid needing + * locking. */ + + spin_lock_irqsave(&local->lock, flags); + list_add(&tmp->list, &local->crypt_deinit_list); + if (!timer_pending(&local->crypt_deinit_timer)) { + local->crypt_deinit_timer.expires = jiffies + HZ; + add_timer(&local->crypt_deinit_timer); + } + spin_unlock_irqrestore(&local->lock, flags); +} + + +static int prism2_ioctl_siwencode(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *erq, char *keybuf) +{ + struct hostap_interface *iface; + local_info_t *local; + int i; + struct prism2_crypt_data **crypt; + + iface = netdev_priv(dev); + local = iface->local; + + i = erq->flags & IW_ENCODE_INDEX; + if (i < 1 || i > 4) + i = local->tx_keyidx; + else + i--; + if (i < 0 || i >= WEP_KEYS) + return -EINVAL; + + crypt = &local->crypt[i]; + + if (erq->flags & IW_ENCODE_DISABLED) { + if (*crypt) + prism2_crypt_delayed_deinit(local, crypt); + goto done; + } + + if (*crypt != NULL && (*crypt)->ops != NULL && + strcmp((*crypt)->ops->name, "WEP") != 0) { + /* changing to use WEP; deinit previously used algorithm */ + prism2_crypt_delayed_deinit(local, crypt); + } + + if (*crypt == NULL) { + struct prism2_crypt_data *new_crypt; + + /* take WEP into use */ + new_crypt = (struct prism2_crypt_data *) + kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL); + if (new_crypt == NULL) + return -ENOMEM; + memset(new_crypt, 0, sizeof(struct prism2_crypt_data)); + new_crypt->ops = hostap_get_crypto_ops("WEP"); + if (!new_crypt->ops) { + request_module("hostap_crypt_wep"); + new_crypt->ops = hostap_get_crypto_ops("WEP"); + } + if (new_crypt->ops) + new_crypt->priv = new_crypt->ops->init(i); + if (!new_crypt->ops || !new_crypt->priv) { + kfree(new_crypt); + new_crypt = NULL; + + printk(KERN_WARNING "%s: could not initialize WEP: " + "load module hostap_crypt_wep.o\n", + dev->name); + return -EOPNOTSUPP; + } + *crypt = new_crypt; + } + + if (erq->length > 0) { + int len = erq->length <= 5 ? 5 : 13; + int first = 1, j; + if (len > erq->length) + memset(keybuf + erq->length, 0, len - erq->length); + (*crypt)->ops->set_key(keybuf, len, NULL, (*crypt)->priv); + for (j = 0; j < WEP_KEYS; j++) { + if (j != i && local->crypt[j]) { + first = 0; + break; + } + } + if (first) + local->tx_keyidx = i; + } else { + /* No key data - just set the default TX key index */ + local->tx_keyidx = i; + } + + done: + local->open_wep = erq->flags & IW_ENCODE_OPEN; + + if (hostap_set_encryption(local)) { + printk(KERN_DEBUG "%s: set_encryption failed\n", dev->name); + return -EINVAL; + } + + /* Do not reset port0 if card is in Managed mode since resetting will + * generate new IEEE 802.11 authentication which may end up in looping + * with IEEE 802.1X. Prism2 documentation seem to require port reset + * after WEP configuration. However, keys are apparently changed at + * least in Managed mode. */ + if (local->iw_mode != IW_MODE_INFRA && local->func->reset_port(dev)) { + printk(KERN_DEBUG "%s: reset_port failed\n", dev->name); + return -EINVAL; + } + + return 0; +} + + +static int prism2_ioctl_giwencode(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *erq, char *key) +{ + struct hostap_interface *iface; + local_info_t *local; + int i, len; + u16 val; + struct prism2_crypt_data *crypt; + + iface = netdev_priv(dev); + local = iface->local; + + i = erq->flags & IW_ENCODE_INDEX; + if (i < 1 || i > 4) + i = local->tx_keyidx; + else + i--; + if (i < 0 || i >= WEP_KEYS) + return -EINVAL; + + crypt = local->crypt[i]; + erq->flags = i + 1; + + if (crypt == NULL || crypt->ops == NULL) { + erq->length = 0; + erq->flags |= IW_ENCODE_DISABLED; + return 0; + } + + if (strcmp(crypt->ops->name, "WEP") != 0) { + /* only WEP is supported with wireless extensions, so just + * report that encryption is used */ + erq->length = 0; + erq->flags |= IW_ENCODE_ENABLED; + return 0; + } + + /* Reads from HFA384X_RID_CNFDEFAULTKEY* return bogus values, so show + * the keys from driver buffer */ + len = crypt->ops->get_key(key, WEP_KEY_LEN, NULL, crypt->priv); + erq->length = (len >= 0 ? len : 0); + + if (local->func->get_rid(dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, 1) < 0) + { + printk("CNFWEPFLAGS reading failed\n"); + return -EOPNOTSUPP; + } + le16_to_cpus(&val); + if (val & HFA384X_WEPFLAGS_PRIVACYINVOKED) + erq->flags |= IW_ENCODE_ENABLED; + else + erq->flags |= IW_ENCODE_DISABLED; + if (val & HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED) + erq->flags |= IW_ENCODE_RESTRICTED; + else + erq->flags |= IW_ENCODE_OPEN; + + return 0; +} + + +static int hostap_set_rate(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret, basic_rates; + + iface = netdev_priv(dev); + local = iface->local; + + basic_rates = local->basic_rates & local->tx_rate_control; + if (!basic_rates || basic_rates != local->basic_rates) { + printk(KERN_INFO "%s: updating basic rate set automatically " + "to match with the new supported rate set\n", + dev->name); + if (!basic_rates) + basic_rates = local->tx_rate_control; + + local->basic_rates = basic_rates; + if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES, + basic_rates)) + printk(KERN_WARNING "%s: failed to set " + "cnfBasicRates\n", dev->name); + } + + ret = (hostap_set_word(dev, HFA384X_RID_TXRATECONTROL, + local->tx_rate_control) || + hostap_set_word(dev, HFA384X_RID_CNFSUPPORTEDRATES, + local->tx_rate_control) || + local->func->reset_port(dev)); + + if (ret) { + printk(KERN_WARNING "%s: TXRateControl/cnfSupportedRates " + "setting to 0x%x failed\n", + dev->name, local->tx_rate_control); + } + + /* Update TX rate configuration for all STAs based on new operational + * rate set. */ + hostap_update_rates(local); + + return ret; +} + + +static int prism2_ioctl_siwrate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (rrq->fixed) { + switch (rrq->value) { + case 11000000: + local->tx_rate_control = HFA384X_RATES_11MBPS; + break; + case 5500000: + local->tx_rate_control = HFA384X_RATES_5MBPS; + break; + case 2000000: + local->tx_rate_control = HFA384X_RATES_2MBPS; + break; + case 1000000: + local->tx_rate_control = HFA384X_RATES_1MBPS; + break; + default: + local->tx_rate_control = HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS | + HFA384X_RATES_11MBPS; + break; + } + } else { + switch (rrq->value) { + case 11000000: + local->tx_rate_control = HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS | + HFA384X_RATES_11MBPS; + break; + case 5500000: + local->tx_rate_control = HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS; + break; + case 2000000: + local->tx_rate_control = HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS; + break; + case 1000000: + local->tx_rate_control = HFA384X_RATES_1MBPS; + break; + default: + local->tx_rate_control = HFA384X_RATES_1MBPS | + HFA384X_RATES_2MBPS | HFA384X_RATES_5MBPS | + HFA384X_RATES_11MBPS; + break; + } + } + + return hostap_set_rate(dev); +} + + +static int prism2_ioctl_giwrate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ + u16 val; + struct hostap_interface *iface; + local_info_t *local; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_TXRATECONTROL, &val, 2, 1) < + 0) + return -EINVAL; + + if ((val & 0x1) && (val > 1)) + rrq->fixed = 0; + else + rrq->fixed = 1; + + if (local->iw_mode == IW_MODE_MASTER && local->ap != NULL && + !local->fw_tx_rate_control) { + /* HFA384X_RID_CURRENTTXRATE seems to always be 2 Mbps in + * Host AP mode, so use the recorded TX rate of the last sent + * frame */ + rrq->value = local->ap->last_tx_rate > 0 ? + local->ap->last_tx_rate * 100000 : 11000000; + return 0; + } + + if (local->func->get_rid(dev, HFA384X_RID_CURRENTTXRATE, &val, 2, 1) < + 0) + return -EINVAL; + + switch (val) { + case HFA384X_RATES_1MBPS: + rrq->value = 1000000; + break; + case HFA384X_RATES_2MBPS: + rrq->value = 2000000; + break; + case HFA384X_RATES_5MBPS: + rrq->value = 5500000; + break; + case HFA384X_RATES_11MBPS: + rrq->value = 11000000; + break; + default: + /* should not happen */ + rrq->value = 11000000; + ret = -EINVAL; + break; + } + + return ret; +} + + +static int prism2_ioctl_siwsens(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *sens, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + /* Set the desired AP density */ + if (sens->value < 1 || sens->value > 3) + return -EINVAL; + + if (hostap_set_word(dev, HFA384X_RID_CNFSYSTEMSCALE, sens->value) || + local->func->reset_port(dev)) + return -EINVAL; + + return 0; +} + +static int prism2_ioctl_giwsens(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *sens, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + /* Get the current AP density */ + if (local->func->get_rid(dev, HFA384X_RID_CNFSYSTEMSCALE, &val, 2, 1) < + 0) + return -EINVAL; + + sens->value = __le16_to_cpu(val); + sens->fixed = 1; + + return 0; +} + + +/* Deprecated in new wireless extension API */ +static int prism2_ioctl_giwaplist(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + struct sockaddr *addr; + struct iw_quality *qual; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->iw_mode != IW_MODE_MASTER) { + printk(KERN_DEBUG "SIOCGIWAPLIST is currently only supported " + "in Host AP mode\n"); + data->length = 0; + return -EOPNOTSUPP; + } + + addr = kmalloc(sizeof(struct sockaddr) * IW_MAX_AP, GFP_KERNEL); + qual = kmalloc(sizeof(struct iw_quality) * IW_MAX_AP, GFP_KERNEL); + if (addr == NULL || qual == NULL) { + kfree(addr); + kfree(qual); + data->length = 0; + return -ENOMEM; + } + + data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1); + + memcpy(extra, &addr, sizeof(struct sockaddr) * data->length); + data->flags = 1; /* has quality information */ + memcpy(extra + sizeof(struct sockaddr) * data->length, &qual, + sizeof(struct iw_quality) * data->length); + + kfree(addr); + kfree(qual); + + return 0; +} + + +static int prism2_ioctl_siwrts(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (rts->disabled) + val = __constant_cpu_to_le16(2347); + else if (rts->value < 0 || rts->value > 2347) + return -EINVAL; + else + val = __cpu_to_le16(rts->value); + + if (local->func->set_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2) || + local->func->reset_port(dev)) + return -EINVAL; + + local->rts_threshold = rts->value; + + return 0; +} + +static int prism2_ioctl_giwrts(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_RTSTHRESHOLD, &val, 2, 1) < + 0) + return -EINVAL; + + rts->value = __le16_to_cpu(val); + rts->disabled = (rts->value == 2347); + rts->fixed = 1; + + return 0; +} + + +static int prism2_ioctl_siwfrag(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (rts->disabled) + val = __constant_cpu_to_le16(2346); + else if (rts->value < 256 || rts->value > 2346) + return -EINVAL; + else + val = __cpu_to_le16(rts->value & ~0x1); /* even numbers only */ + + local->fragm_threshold = rts->value & ~0x1; + if (local->func->set_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, &val, + 2) + || local->func->reset_port(dev)) + return -EINVAL; + + return 0; +} + +static int prism2_ioctl_giwfrag(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rts, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD, + &val, 2, 1) < 0) + return -EINVAL; + + rts->value = __le16_to_cpu(val); + rts->disabled = (rts->value == 2346); + rts->fixed = 1; + + return 0; +} + + +#ifndef PRISM2_NO_STATION_MODES +static int hostap_join_ap(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_join_request req; + unsigned long flags; + int i; + struct hfa384x_scan_result *entry; + + iface = netdev_priv(dev); + local = iface->local; + + memcpy(req.bssid, local->preferred_ap, ETH_ALEN); + req.channel = 0; + + spin_lock_irqsave(&local->lock, flags); + for (i = 0; i < local->last_scan_results_count; i++) { + if (!local->last_scan_results) + break; + entry = &local->last_scan_results[i]; + if (memcmp(local->preferred_ap, entry->bssid, ETH_ALEN) == 0) { + req.channel = entry->chid; + break; + } + } + spin_unlock_irqrestore(&local->lock, flags); + + if (local->func->set_rid(dev, HFA384X_RID_JOINREQUEST, &req, + sizeof(req))) { + printk(KERN_DEBUG "%s: JoinRequest " MACSTR + " failed\n", + dev->name, MAC2STR(local->preferred_ap)); + return -1; + } + + printk(KERN_DEBUG "%s: Trying to join BSSID " MACSTR "\n", + dev->name, MAC2STR(local->preferred_ap)); + + return 0; +} +#endif /* PRISM2_NO_STATION_MODES */ + + +static int prism2_ioctl_siwap(struct net_device *dev, + struct iw_request_info *info, + struct sockaddr *ap_addr, char *extra) +{ +#ifdef PRISM2_NO_STATION_MODES + return -EOPNOTSUPP; +#else /* PRISM2_NO_STATION_MODES */ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + memcpy(local->preferred_ap, &ap_addr->sa_data, ETH_ALEN); + + if (local->host_roaming == 1 && local->iw_mode == IW_MODE_INFRA) { + struct hfa384x_scan_request scan_req; + memset(&scan_req, 0, sizeof(scan_req)); + scan_req.channel_list = __constant_cpu_to_le16(0x3fff); + scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS); + if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST, + &scan_req, sizeof(scan_req))) { + printk(KERN_DEBUG "%s: ScanResults request failed - " + "preferred AP delayed to next unsolicited " + "scan\n", dev->name); + } + } else if (local->host_roaming == 2 && + local->iw_mode == IW_MODE_INFRA) { + if (hostap_join_ap(dev)) + return -EINVAL; + } else { + printk(KERN_DEBUG "%s: Preferred AP (SIOCSIWAP) is used only " + "in Managed mode when host_roaming is enabled\n", + dev->name); + } + + return 0; +#endif /* PRISM2_NO_STATION_MODES */ +} + +static int prism2_ioctl_giwap(struct net_device *dev, + struct iw_request_info *info, + struct sockaddr *ap_addr, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + ap_addr->sa_family = ARPHRD_ETHER; + switch (iface->type) { + case HOSTAP_INTERFACE_AP: + memcpy(&ap_addr->sa_data, dev->dev_addr, ETH_ALEN); + break; + case HOSTAP_INTERFACE_STA: + memcpy(&ap_addr->sa_data, local->assoc_ap_addr, ETH_ALEN); + break; + case HOSTAP_INTERFACE_WDS: + memcpy(&ap_addr->sa_data, iface->u.wds.remote_addr, ETH_ALEN); + break; + default: + if (local->func->get_rid(dev, HFA384X_RID_CURRENTBSSID, + &ap_addr->sa_data, ETH_ALEN, 1) < 0) + return -EOPNOTSUPP; + + /* local->bssid is also updated in LinkStatus handler when in + * station mode */ + memcpy(local->bssid, &ap_addr->sa_data, ETH_ALEN); + break; + } + + return 0; +} + + +static int prism2_ioctl_siwnickn(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *nickname) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + memset(local->name, 0, sizeof(local->name)); + memcpy(local->name, nickname, data->length); + local->name_set = 1; + + if (hostap_set_string(dev, HFA384X_RID_CNFOWNNAME, local->name) || + local->func->reset_port(dev)) + return -EINVAL; + + return 0; +} + +static int prism2_ioctl_giwnickn(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *nickname) +{ + struct hostap_interface *iface; + local_info_t *local; + int len; + char name[MAX_NAME_LEN + 3]; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + len = local->func->get_rid(dev, HFA384X_RID_CNFOWNNAME, + &name, MAX_NAME_LEN + 2, 0); + val = __le16_to_cpu(*(u16 *) name); + if (len > MAX_NAME_LEN + 2 || len < 0 || val > MAX_NAME_LEN) + return -EOPNOTSUPP; + + name[val + 2] = '\0'; + data->length = val + 1; + memcpy(nickname, name + 2, val + 1); + + return 0; +} + + +static int prism2_ioctl_siwfreq(struct net_device *dev, + struct iw_request_info *info, + struct iw_freq *freq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + /* freq => chan. */ + if (freq->e == 1 && + freq->m / 100000 >= freq_list[0] && + freq->m / 100000 <= freq_list[FREQ_COUNT - 1]) { + int ch; + int fr = freq->m / 100000; + for (ch = 0; ch < FREQ_COUNT; ch++) { + if (fr == freq_list[ch]) { + freq->e = 0; + freq->m = ch + 1; + break; + } + } + } + + if (freq->e != 0 || freq->m < 1 || freq->m > FREQ_COUNT || + !(local->channel_mask & (1 << (freq->m - 1)))) + return -EINVAL; + + local->channel = freq->m; /* channel is used in prism2_setup_rids() */ + if (hostap_set_word(dev, HFA384X_RID_CNFOWNCHANNEL, local->channel) || + local->func->reset_port(dev)) + return -EINVAL; + + return 0; +} + +static int prism2_ioctl_giwfreq(struct net_device *dev, + struct iw_request_info *info, + struct iw_freq *freq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_CURRENTCHANNEL, &val, 2, 1) < + 0) + return -EINVAL; + + le16_to_cpus(&val); + if (val < 1 || val > FREQ_COUNT) + return -EINVAL; + + freq->m = freq_list[val - 1] * 100000; + freq->e = 1; + + return 0; +} + + +static void hostap_monitor_set_type(local_info_t *local) +{ + struct net_device *dev = local->ddev; + + if (dev == NULL) + return; + + if (local->monitor_type == PRISM2_MONITOR_PRISM || + local->monitor_type == PRISM2_MONITOR_CAPHDR) { + dev->type = ARPHRD_IEEE80211_PRISM; + dev->hard_header_parse = + hostap_80211_prism_header_parse; + } else { + dev->type = ARPHRD_IEEE80211; + dev->hard_header_parse = hostap_80211_header_parse; + } +} + + +static int prism2_ioctl_siwessid(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *ssid) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (iface->type == HOSTAP_INTERFACE_WDS) + return -EOPNOTSUPP; + + if (data->flags == 0) + ssid[0] = '\0'; /* ANY */ + + if (local->iw_mode == IW_MODE_MASTER && ssid[0] == '\0') { + /* Setting SSID to empty string seems to kill the card in + * Host AP mode */ + printk(KERN_DEBUG "%s: Host AP mode does not support " + "'Any' essid\n", dev->name); + return -EINVAL; + } + + memcpy(local->essid, ssid, data->length); + local->essid[data->length] = '\0'; + + if ((!local->fw_ap && + hostap_set_string(dev, HFA384X_RID_CNFDESIREDSSID, local->essid)) + || hostap_set_string(dev, HFA384X_RID_CNFOWNSSID, local->essid) || + local->func->reset_port(dev)) + return -EINVAL; + + return 0; +} + +static int prism2_ioctl_giwessid(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *essid) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + if (iface->type == HOSTAP_INTERFACE_WDS) + return -EOPNOTSUPP; + + data->flags = 1; /* active */ + if (local->iw_mode == IW_MODE_MASTER) { + data->length = strlen(local->essid); + memcpy(essid, local->essid, IW_ESSID_MAX_SIZE); + } else { + int len; + char ssid[MAX_SSID_LEN + 2]; + memset(ssid, 0, sizeof(ssid)); + len = local->func->get_rid(dev, HFA384X_RID_CURRENTSSID, + &ssid, MAX_SSID_LEN + 2, 0); + val = __le16_to_cpu(*(u16 *) ssid); + if (len > MAX_SSID_LEN + 2 || len < 0 || val > MAX_SSID_LEN) { + return -EOPNOTSUPP; + } + data->length = val; + memcpy(essid, ssid + 2, IW_ESSID_MAX_SIZE); + } + + return 0; +} + + +static int prism2_ioctl_giwrange(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + struct iw_range *range = (struct iw_range *) extra; + u8 rates[10]; + u16 val; + int i, len, over2; + + iface = netdev_priv(dev); + local = iface->local; + + data->length = sizeof(struct iw_range); + memset(range, 0, sizeof(struct iw_range)); + + /* TODO: could fill num_txpower and txpower array with + * something; however, there are 128 different values.. */ + + range->txpower_capa = IW_TXPOW_DBM; + + if (local->iw_mode == IW_MODE_INFRA || local->iw_mode == IW_MODE_ADHOC) + { + range->min_pmp = 1 * 1024; + range->max_pmp = 65535 * 1024; + range->min_pmt = 1 * 1024; + range->max_pmt = 1000 * 1024; + range->pmp_flags = IW_POWER_PERIOD; + range->pmt_flags = IW_POWER_TIMEOUT; + range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | + IW_POWER_UNICAST_R | IW_POWER_ALL_R; + } + + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 18; + + range->retry_capa = IW_RETRY_LIMIT; + range->retry_flags = IW_RETRY_LIMIT; + range->min_retry = 0; + range->max_retry = 255; + + range->num_channels = FREQ_COUNT; + + val = 0; + for (i = 0; i < FREQ_COUNT; i++) { + if (local->channel_mask & (1 << i)) { + range->freq[val].i = i + 1; + range->freq[val].m = freq_list[i] * 100000; + range->freq[val].e = 1; + val++; + } + if (val == IW_MAX_FREQUENCIES) + break; + } + range->num_frequency = val; + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) { + range->max_qual.qual = 70; /* what is correct max? This was not + * documented exactly. At least + * 69 has been observed. */ + range->max_qual.level = 0; /* dB */ + range->max_qual.noise = 0; /* dB */ + + /* What would be suitable values for "average/typical" qual? */ + range->avg_qual.qual = 20; + range->avg_qual.level = -60; + range->avg_qual.noise = -95; + } else { + range->max_qual.qual = 92; /* 0 .. 92 */ + range->max_qual.level = 154; /* 27 .. 154 */ + range->max_qual.noise = 154; /* 27 .. 154 */ + } + range->sensitivity = 3; + + range->max_encoding_tokens = WEP_KEYS; + range->num_encoding_sizes = 2; + range->encoding_size[0] = 5; + range->encoding_size[1] = 13; + + over2 = 0; + len = prism2_get_datarates(dev, rates); + range->num_bitrates = 0; + for (i = 0; i < len; i++) { + if (range->num_bitrates < IW_MAX_BITRATES) { + range->bitrate[range->num_bitrates] = + rates[i] * 500000; + range->num_bitrates++; + } + if (rates[i] == 0x0b || rates[i] == 0x16) + over2 = 1; + } + /* estimated maximum TCP throughput values (bps) */ + range->throughput = over2 ? 5500000 : 1500000; + + range->min_rts = 0; + range->max_rts = 2347; + range->min_frag = 256; + range->max_frag = 2346; + + /* Event capability (kernel + driver) */ + range->event_capa[0] = (IW_EVENT_CAPA_K_0 | + IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | + IW_EVENT_CAPA_MASK(SIOCGIWAP) | + IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); + range->event_capa[1] = IW_EVENT_CAPA_K_1; + range->event_capa[4] = (IW_EVENT_CAPA_MASK(IWEVTXDROP) | + IW_EVENT_CAPA_MASK(IWEVCUSTOM) | + IW_EVENT_CAPA_MASK(IWEVREGISTERED) | + IW_EVENT_CAPA_MASK(IWEVEXPIRED)); + + range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | + IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; + + return 0; +} + + +static int hostap_monitor_mode_enable(local_info_t *local) +{ + struct net_device *dev = local->dev; + + printk(KERN_DEBUG "Enabling monitor mode\n"); + hostap_monitor_set_type(local); + + if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, + HFA384X_PORTTYPE_PSEUDO_IBSS)) { + printk(KERN_DEBUG "Port type setting for monitor mode " + "failed\n"); + return -EOPNOTSUPP; + } + + /* Host decrypt is needed to get the IV and ICV fields; + * however, monitor mode seems to remove WEP flag from frame + * control field */ + if (hostap_set_word(dev, HFA384X_RID_CNFWEPFLAGS, + HFA384X_WEPFLAGS_HOSTENCRYPT | + HFA384X_WEPFLAGS_HOSTDECRYPT)) { + printk(KERN_DEBUG "WEP flags setting failed\n"); + return -EOPNOTSUPP; + } + + if (local->func->reset_port(dev) || + local->func->cmd(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_MONITOR << 8), + 0, NULL, NULL)) { + printk(KERN_DEBUG "Setting monitor mode failed\n"); + return -EOPNOTSUPP; + } + + return 0; +} + + +static int hostap_monitor_mode_disable(local_info_t *local) +{ + struct net_device *dev = local->ddev; + + if (dev == NULL) + return -1; + + printk(KERN_DEBUG "%s: Disabling monitor mode\n", dev->name); + dev->type = ARPHRD_ETHER; + dev->hard_header_parse = local->saved_eth_header_parse; + if (local->func->cmd(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_STOP << 8), + 0, NULL, NULL)) + return -1; + return hostap_set_encryption(local); +} + + +static int prism2_ioctl_siwmode(struct net_device *dev, + struct iw_request_info *info, + __u32 *mode, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + int double_reset = 0; + + iface = netdev_priv(dev); + local = iface->local; + + if (*mode != IW_MODE_ADHOC && *mode != IW_MODE_INFRA && + *mode != IW_MODE_MASTER && *mode != IW_MODE_REPEAT && + *mode != IW_MODE_MONITOR) + return -EOPNOTSUPP; + +#ifdef PRISM2_NO_STATION_MODES + if (*mode == IW_MODE_ADHOC || *mode == IW_MODE_INFRA) + return -EOPNOTSUPP; +#endif /* PRISM2_NO_STATION_MODES */ + + if (*mode == local->iw_mode) + return 0; + + if (*mode == IW_MODE_MASTER && local->essid[0] == '\0') { + printk(KERN_WARNING "%s: empty SSID not allowed in Master " + "mode\n", dev->name); + return -EINVAL; + } + + if (local->iw_mode == IW_MODE_MONITOR) + hostap_monitor_mode_disable(local); + + if (local->iw_mode == IW_MODE_ADHOC && *mode == IW_MODE_MASTER) { + /* There seems to be a firmware bug in at least STA f/w v1.5.6 + * that leaves beacon frames to use IBSS type when moving from + * IBSS to Host AP mode. Doing double Port0 reset seems to be + * enough to workaround this. */ + double_reset = 1; + } + + printk(KERN_DEBUG "prism2: %s: operating mode changed " + "%d -> %d\n", dev->name, local->iw_mode, *mode); + local->iw_mode = *mode; + + if (local->iw_mode == IW_MODE_MONITOR) + hostap_monitor_mode_enable(local); + else if (local->iw_mode == IW_MODE_MASTER && !local->host_encrypt && + !local->fw_encrypt_ok) { + printk(KERN_DEBUG "%s: defaulting to host-based encryption as " + "a workaround for firmware bug in Host AP mode WEP\n", + dev->name); + local->host_encrypt = 1; + } + + if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, + hostap_get_porttype(local))) + return -EOPNOTSUPP; + + if (local->func->reset_port(dev)) + return -EINVAL; + if (double_reset && local->func->reset_port(dev)) + return -EINVAL; + + if (local->iw_mode != IW_MODE_INFRA && local->iw_mode != IW_MODE_ADHOC) + { + /* netif_carrier is used only in client modes for now, so make + * sure carrier is on when moving to non-client modes. */ + netif_carrier_on(local->dev); + netif_carrier_on(local->ddev); + } + return 0; +} + + +static int prism2_ioctl_giwmode(struct net_device *dev, + struct iw_request_info *info, + __u32 *mode, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + switch (iface->type) { + case HOSTAP_INTERFACE_STA: + *mode = IW_MODE_INFRA; + break; + case HOSTAP_INTERFACE_WDS: + *mode = IW_MODE_REPEAT; + break; + default: + *mode = local->iw_mode; + break; + } + return 0; +} + + +static int prism2_ioctl_siwpower(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *wrq, char *extra) +{ +#ifdef PRISM2_NO_STATION_MODES + return -EOPNOTSUPP; +#else /* PRISM2_NO_STATION_MODES */ + int ret = 0; + + if (wrq->disabled) + return hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 0); + + switch (wrq->flags & IW_POWER_MODE) { + case IW_POWER_UNICAST_R: + ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 0); + if (ret) + return ret; + ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1); + if (ret) + return ret; + break; + case IW_POWER_ALL_R: + ret = hostap_set_word(dev, HFA384X_RID_CNFMULTICASTRECEIVE, 1); + if (ret) + return ret; + ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1); + if (ret) + return ret; + break; + case IW_POWER_ON: + break; + default: + return -EINVAL; + } + + if (wrq->flags & IW_POWER_TIMEOUT) { + ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1); + if (ret) + return ret; + ret = hostap_set_word(dev, HFA384X_RID_CNFPMHOLDOVERDURATION, + wrq->value / 1024); + if (ret) + return ret; + } + if (wrq->flags & IW_POWER_PERIOD) { + ret = hostap_set_word(dev, HFA384X_RID_CNFPMENABLED, 1); + if (ret) + return ret; + ret = hostap_set_word(dev, HFA384X_RID_CNFMAXSLEEPDURATION, + wrq->value / 1024); + if (ret) + return ret; + } + + return ret; +#endif /* PRISM2_NO_STATION_MODES */ +} + + +static int prism2_ioctl_giwpower(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ +#ifdef PRISM2_NO_STATION_MODES + return -EOPNOTSUPP; +#else /* PRISM2_NO_STATION_MODES */ + struct hostap_interface *iface; + local_info_t *local; + u16 enable, mcast; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_CNFPMENABLED, &enable, 2, 1) + < 0) + return -EINVAL; + + if (!__le16_to_cpu(enable)) { + rrq->disabled = 1; + return 0; + } + + rrq->disabled = 0; + + if ((rrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { + u16 timeout; + if (local->func->get_rid(dev, + HFA384X_RID_CNFPMHOLDOVERDURATION, + &timeout, 2, 1) < 0) + return -EINVAL; + + rrq->flags = IW_POWER_TIMEOUT; + rrq->value = __le16_to_cpu(timeout) * 1024; + } else { + u16 period; + if (local->func->get_rid(dev, HFA384X_RID_CNFMAXSLEEPDURATION, + &period, 2, 1) < 0) + return -EINVAL; + + rrq->flags = IW_POWER_PERIOD; + rrq->value = __le16_to_cpu(period) * 1024; + } + + if (local->func->get_rid(dev, HFA384X_RID_CNFMULTICASTRECEIVE, &mcast, + 2, 1) < 0) + return -EINVAL; + + if (__le16_to_cpu(mcast)) + rrq->flags |= IW_POWER_ALL_R; + else + rrq->flags |= IW_POWER_UNICAST_R; + + return 0; +#endif /* PRISM2_NO_STATION_MODES */ +} + + +static int prism2_ioctl_siwretry(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (rrq->disabled) + return -EINVAL; + + /* setting retry limits is not supported with the current station + * firmware code; simulate this with alternative retry count for now */ + if (rrq->flags == IW_RETRY_LIMIT) { + if (rrq->value < 0) { + /* disable manual retry count setting and use firmware + * defaults */ + local->manual_retry_count = -1; + local->tx_control &= ~HFA384X_TX_CTRL_ALT_RTRY; + } else { + if (hostap_set_word(dev, HFA384X_RID_CNFALTRETRYCOUNT, + rrq->value)) { + printk(KERN_DEBUG "%s: Alternate retry count " + "setting to %d failed\n", + dev->name, rrq->value); + return -EOPNOTSUPP; + } + + local->manual_retry_count = rrq->value; + local->tx_control |= HFA384X_TX_CTRL_ALT_RTRY; + } + return 0; + } + + return -EOPNOTSUPP; + +#if 0 + /* what could be done, if firmware would support this.. */ + + if (rrq->flags & IW_RETRY_LIMIT) { + if (rrq->flags & IW_RETRY_MAX) + HFA384X_RID_LONGRETRYLIMIT = rrq->value; + else if (rrq->flags & IW_RETRY_MIN) + HFA384X_RID_SHORTRETRYLIMIT = rrq->value; + else { + HFA384X_RID_LONGRETRYLIMIT = rrq->value; + HFA384X_RID_SHORTRETRYLIMIT = rrq->value; + } + + } + + if (rrq->flags & IW_RETRY_LIFETIME) { + HFA384X_RID_MAXTRANSMITLIFETIME = rrq->value / 1024; + } + + return 0; +#endif /* 0 */ +} + +static int prism2_ioctl_giwretry(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 shortretry, longretry, lifetime, altretry; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->get_rid(dev, HFA384X_RID_SHORTRETRYLIMIT, &shortretry, + 2, 1) < 0 || + local->func->get_rid(dev, HFA384X_RID_LONGRETRYLIMIT, &longretry, + 2, 1) < 0 || + local->func->get_rid(dev, HFA384X_RID_MAXTRANSMITLIFETIME, + &lifetime, 2, 1) < 0) + return -EINVAL; + + le16_to_cpus(&shortretry); + le16_to_cpus(&longretry); + le16_to_cpus(&lifetime); + + rrq->disabled = 0; + + if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { + rrq->flags = IW_RETRY_LIFETIME; + rrq->value = lifetime * 1024; + } else { + if (local->manual_retry_count >= 0) { + rrq->flags = IW_RETRY_LIMIT; + if (local->func->get_rid(dev, + HFA384X_RID_CNFALTRETRYCOUNT, + &altretry, 2, 1) >= 0) + rrq->value = le16_to_cpu(altretry); + else + rrq->value = local->manual_retry_count; + } else if ((rrq->flags & IW_RETRY_MAX)) { + rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + rrq->value = longretry; + } else { + rrq->flags = IW_RETRY_LIMIT; + rrq->value = shortretry; + if (shortretry != longretry) + rrq->flags |= IW_RETRY_MIN; + } + } + return 0; +} + + +/* Note! This TX power controlling is experimental and should not be used in + * production use. It just sets raw power register and does not use any kind of + * feedback information from the measured TX power (CR58). This is now + * commented out to make sure that it is not used by accident. TX power + * configuration will be enabled again after proper algorithm using feedback + * has been implemented. */ + +#ifdef RAW_TXPOWER_SETTING +/* Map HFA386x's CR31 to and from dBm with some sort of ad hoc mapping.. + * This version assumes following mapping: + * CR31 is 7-bit value with -64 to +63 range. + * -64 is mapped into +20dBm and +63 into -43dBm. + * This is certainly not an exact mapping for every card, but at least + * increasing dBm value should correspond to increasing TX power. + */ + +static int prism2_txpower_hfa386x_to_dBm(u16 val) +{ + signed char tmp; + + if (val > 255) + val = 255; + + tmp = val; + tmp >>= 2; + + return -12 - tmp; +} + +static u16 prism2_txpower_dBm_to_hfa386x(int val) +{ + signed char tmp; + + if (val > 20) + return 128; + else if (val < -43) + return 127; + + tmp = val; + tmp = -12 - tmp; + tmp <<= 2; + + return (unsigned char) tmp; +} +#endif /* RAW_TXPOWER_SETTING */ + + +static int prism2_ioctl_siwtxpow(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; +#ifdef RAW_TXPOWER_SETTING + char *tmp; +#endif + u16 val; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + if (rrq->disabled) { + if (local->txpower_type != PRISM2_TXPOWER_OFF) { + val = 0xff; /* use all standby and sleep modes */ + ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, + HFA386X_CR_A_D_TEST_MODES2, + &val, NULL); + printk(KERN_DEBUG "%s: Turning radio off: %s\n", + dev->name, ret ? "failed" : "OK"); + local->txpower_type = PRISM2_TXPOWER_OFF; + } + return (ret ? -EOPNOTSUPP : 0); + } + + if (local->txpower_type == PRISM2_TXPOWER_OFF) { + val = 0; /* disable all standby and sleep modes */ + ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, + HFA386X_CR_A_D_TEST_MODES2, &val, NULL); + printk(KERN_DEBUG "%s: Turning radio on: %s\n", + dev->name, ret ? "failed" : "OK"); + local->txpower_type = PRISM2_TXPOWER_UNKNOWN; + } + +#ifdef RAW_TXPOWER_SETTING + if (!rrq->fixed && local->txpower_type != PRISM2_TXPOWER_AUTO) { + printk(KERN_DEBUG "Setting ALC on\n"); + val = HFA384X_TEST_CFG_BIT_ALC; + local->func->cmd(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_CFG_BITS << 8), 1, &val, NULL); + local->txpower_type = PRISM2_TXPOWER_AUTO; + return 0; + } + + if (local->txpower_type != PRISM2_TXPOWER_FIXED) { + printk(KERN_DEBUG "Setting ALC off\n"); + val = HFA384X_TEST_CFG_BIT_ALC; + local->func->cmd(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL); + local->txpower_type = PRISM2_TXPOWER_FIXED; + } + + if (rrq->flags == IW_TXPOW_DBM) + tmp = "dBm"; + else if (rrq->flags == IW_TXPOW_MWATT) + tmp = "mW"; + else + tmp = "UNKNOWN"; + printk(KERN_DEBUG "Setting TX power to %d %s\n", rrq->value, tmp); + + if (rrq->flags != IW_TXPOW_DBM) { + printk("SIOCSIWTXPOW with mW is not supported; use dBm\n"); + return -EOPNOTSUPP; + } + + local->txpower = rrq->value; + val = prism2_txpower_dBm_to_hfa386x(local->txpower); + if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, + HFA386X_CR_MANUAL_TX_POWER, &val, NULL)) + ret = -EOPNOTSUPP; +#else /* RAW_TXPOWER_SETTING */ + if (rrq->fixed) + ret = -EOPNOTSUPP; +#endif /* RAW_TXPOWER_SETTING */ + + return ret; +} + +static int prism2_ioctl_giwtxpow(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *rrq, char *extra) +{ +#ifdef RAW_TXPOWER_SETTING + struct hostap_interface *iface; + local_info_t *local; + u16 resp0; + + iface = netdev_priv(dev); + local = iface->local; + + rrq->flags = IW_TXPOW_DBM; + rrq->disabled = 0; + rrq->fixed = 0; + + if (local->txpower_type == PRISM2_TXPOWER_AUTO) { + if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF, + HFA386X_CR_MANUAL_TX_POWER, + NULL, &resp0) == 0) { + rrq->value = prism2_txpower_hfa386x_to_dBm(resp0); + } else { + /* Could not get real txpower; guess 15 dBm */ + rrq->value = 15; + } + } else if (local->txpower_type == PRISM2_TXPOWER_OFF) { + rrq->value = 0; + rrq->disabled = 1; + } else if (local->txpower_type == PRISM2_TXPOWER_FIXED) { + rrq->value = local->txpower; + rrq->fixed = 1; + } else { + printk("SIOCGIWTXPOW - unknown txpower_type=%d\n", + local->txpower_type); + } + return 0; +#else /* RAW_TXPOWER_SETTING */ + return -EOPNOTSUPP; +#endif /* RAW_TXPOWER_SETTING */ +} + + +#ifndef PRISM2_NO_STATION_MODES + +/* HostScan request works with and without host_roaming mode. In addition, it + * does not break current association. However, it requires newer station + * firmware version (>= 1.3.1) than scan request. */ +static int prism2_request_hostscan(struct net_device *dev, + u8 *ssid, u8 ssid_len) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_hostscan_request scan_req; + + iface = netdev_priv(dev); + local = iface->local; + + memset(&scan_req, 0, sizeof(scan_req)); + scan_req.channel_list = __constant_cpu_to_le16(local->channel_mask); + scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS); + if (ssid) { + if (ssid_len > 32) + return -EINVAL; + scan_req.target_ssid_len = cpu_to_le16(ssid_len); + memcpy(scan_req.target_ssid, ssid, ssid_len); + } + + if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req, + sizeof(scan_req))) { + printk(KERN_DEBUG "%s: HOSTSCAN failed\n", dev->name); + return -EINVAL; + } + return 0; +} + + +static int prism2_request_scan(struct net_device *dev) +{ + struct hostap_interface *iface; + local_info_t *local; + struct hfa384x_scan_request scan_req; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + memset(&scan_req, 0, sizeof(scan_req)); + scan_req.channel_list = __constant_cpu_to_le16(local->channel_mask); + scan_req.txrate = __constant_cpu_to_le16(HFA384X_RATES_1MBPS); + + /* FIX: + * It seems to be enough to set roaming mode for a short moment to + * host-based and then setup scanrequest data and return the mode to + * firmware-based. + * + * Master mode would need to drop to Managed mode for a short while + * to make scanning work.. Or sweep through the different channels and + * use passive scan based on beacons. */ + + if (!local->host_roaming) + hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE, + HFA384X_ROAMING_HOST); + + if (local->func->set_rid(dev, HFA384X_RID_SCANREQUEST, &scan_req, + sizeof(scan_req))) { + printk(KERN_DEBUG "SCANREQUEST failed\n"); + ret = -EINVAL; + } + + if (!local->host_roaming) + hostap_set_word(dev, HFA384X_RID_CNFROAMINGMODE, + HFA384X_ROAMING_FIRMWARE); + + return 0; +} + +#else /* !PRISM2_NO_STATION_MODES */ + +static inline int prism2_request_hostscan(struct net_device *dev, + u8 *ssid, u8 ssid_len) +{ + return -EOPNOTSUPP; +} + + +static inline int prism2_request_scan(struct net_device *dev) +{ + return -EOPNOTSUPP; +} + +#endif /* !PRISM2_NO_STATION_MODES */ + + +static int prism2_ioctl_siwscan(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret; + u8 *ssid = NULL, ssid_len = 0; + struct iw_scan_req *req = (struct iw_scan_req *) extra; + + iface = netdev_priv(dev); + local = iface->local; + + if (data->length < sizeof(struct iw_scan_req)) + req = NULL; + + if (local->iw_mode == IW_MODE_MASTER) { + /* In master mode, we just return the results of our local + * tables, so we don't need to start anything... + * Jean II */ + data->length = 0; + return 0; + } + + if (!local->dev_enabled) + return -ENETDOWN; + + if (req && data->flags & IW_SCAN_THIS_ESSID) { + ssid = req->essid; + ssid_len = req->essid_len; + + if (ssid_len && + ((local->iw_mode != IW_MODE_INFRA && + local->iw_mode != IW_MODE_ADHOC) || + (local->sta_fw_ver < PRISM2_FW_VER(1,3,1)))) + return -EOPNOTSUPP; + } + + if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) + ret = prism2_request_hostscan(dev, ssid, ssid_len); + else + ret = prism2_request_scan(dev); + + if (ret == 0) + local->scan_timestamp = jiffies; + + /* Could inquire F101, F103 or wait for SIOCGIWSCAN and read RID */ + + return ret; +} + + +#ifndef PRISM2_NO_STATION_MODES +static char * __prism2_translate_scan(local_info_t *local, + struct hfa384x_scan_result *scan, + struct hfa384x_hostscan_result *hscan, + int hostscan, + struct hostap_bss_info *bss, u8 *bssid, + char *current_ev, char *end_buf) +{ + int i, chan; + struct iw_event iwe; + char *current_val; + u16 capabilities; + u8 *pos; + u8 *ssid; + size_t ssid_len; + char *buf; + + if (bss) { + ssid = bss->ssid; + ssid_len = bss->ssid_len; + } else { + ssid = hostscan ? hscan->ssid : scan->ssid; + ssid_len = le16_to_cpu(hostscan ? hscan->ssid_len : + scan->ssid_len); + } + if (ssid_len > 32) + ssid_len = 32; + + /* First entry *MUST* be the AP MAC address */ + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, bssid, ETH_ALEN); + /* FIX: + * I do not know how this is possible, but iwe_stream_add_event + * seems to re-order memcpy execution so that len is set only + * after copying.. Pre-setting len here "fixes" this, but real + * problems should be solved (after which these iwe.len + * settings could be removed from this function). */ + iwe.len = IW_EV_ADDR_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_ADDR_LEN); + + /* Other entries will be displayed in the order we give them */ + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWESSID; + iwe.u.data.length = ssid_len; + iwe.u.data.flags = 1; + iwe.len = IW_EV_POINT_LEN + iwe.u.data.length; + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, ssid); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWMODE; + if (bss) { + capabilities = bss->capab_info; + } else { + capabilities = le16_to_cpu(hostscan ? hscan->capability : + scan->capability); + } + if (capabilities & (WLAN_CAPABILITY_ESS | + WLAN_CAPABILITY_IBSS)) { + if (capabilities & WLAN_CAPABILITY_ESS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + iwe.len = IW_EV_UINT_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_UINT_LEN); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWFREQ; + if (hscan || scan) { + chan = hostscan ? hscan->chid : scan->chid; + } else if (bss) { + chan = bss->chan; + } else { + chan = 0; + } + + if (chan > 0) { + iwe.u.freq.m = freq_list[le16_to_cpu(chan - 1)] * 100000; + iwe.u.freq.e = 1; + iwe.len = IW_EV_FREQ_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_FREQ_LEN); + } + + if (scan || hscan) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVQUAL; + if (hostscan) { + iwe.u.qual.level = le16_to_cpu(hscan->sl); + iwe.u.qual.noise = le16_to_cpu(hscan->anl); + } else { + iwe.u.qual.level = + HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->sl)); + iwe.u.qual.noise = + HFA384X_LEVEL_TO_dBm(le16_to_cpu(scan->anl)); + } + iwe.len = IW_EV_QUAL_LEN; + current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, + IW_EV_QUAL_LEN); + } + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWENCODE; + if (capabilities & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + iwe.len = IW_EV_POINT_LEN + iwe.u.data.length; + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, ""); + + /* TODO: add SuppRates into BSS table */ + if (scan || hscan) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = SIOCGIWRATE; + current_val = current_ev + IW_EV_LCP_LEN; + pos = hostscan ? hscan->sup_rates : scan->sup_rates; + for (i = 0; i < sizeof(scan->sup_rates); i++) { + if (pos[i] == 0) + break; + /* Bit rate given in 500 kb/s units (+ 0x80) */ + iwe.u.bitrate.value = ((pos[i] & 0x7f) * 500000); + current_val = iwe_stream_add_value( + current_ev, current_val, end_buf, &iwe, + IW_EV_PARAM_LEN); + } + /* Check if we added any event */ + if ((current_val - current_ev) > IW_EV_LCP_LEN) + current_ev = current_val; + } + + /* TODO: add BeaconInt,resp_rate,atim into BSS table */ + buf = kmalloc(MAX_WPA_IE_LEN * 2 + 30, GFP_KERNEL); + if (buf && (scan || hscan)) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "bcn_int=%d", + le16_to_cpu(hostscan ? hscan->beacon_interval : + scan->beacon_interval)); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, + buf); + + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "resp_rate=%d", le16_to_cpu(hostscan ? + hscan->rate : + scan->rate)); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, + buf); + + if (hostscan && (capabilities & WLAN_CAPABILITY_IBSS)) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "atim=%d", le16_to_cpu(hscan->atim)); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(current_ev, end_buf, + &iwe, buf); + } + } + kfree(buf); + + if (bss && bss->wpa_ie_len > 0 && bss->wpa_ie_len <= MAX_WPA_IE_LEN) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = bss->wpa_ie_len; + current_ev = iwe_stream_add_point( + current_ev, end_buf, &iwe, bss->wpa_ie); + } + + if (bss && bss->rsn_ie_len > 0 && bss->rsn_ie_len <= MAX_WPA_IE_LEN) { + memset(&iwe, 0, sizeof(iwe)); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = bss->rsn_ie_len; + current_ev = iwe_stream_add_point( + current_ev, end_buf, &iwe, bss->rsn_ie); + } + + return current_ev; +} + + +/* Translate scan data returned from the card to a card independant + * format that the Wireless Tools will understand - Jean II */ +static inline int prism2_translate_scan(local_info_t *local, + char *buffer, int buflen) +{ + struct hfa384x_scan_result *scan; + struct hfa384x_hostscan_result *hscan; + int entries, entry, hostscan; + char *current_ev = buffer; + char *end_buf = buffer + buflen; + u8 *bssid; + struct list_head *ptr; + + spin_lock_bh(&local->lock); + + list_for_each(ptr, &local->bss_list) { + struct hostap_bss_info *bss; + bss = list_entry(ptr, struct hostap_bss_info, list); + bss->included = 0; + } + + hostscan = local->last_scan_type == PRISM2_HOSTSCAN; + entries = hostscan ? local->last_hostscan_results_count : + local->last_scan_results_count; + for (entry = 0; entry < entries; entry++) { + int found = 0; + scan = &local->last_scan_results[entry]; + hscan = &local->last_hostscan_results[entry]; + + bssid = hostscan ? hscan->bssid : scan->bssid; + + /* Report every SSID if the AP is using multiple SSIDs. If no + * BSS record is found (e.g., when WPA mode is disabled), + * report the AP once. */ + list_for_each(ptr, &local->bss_list) { + struct hostap_bss_info *bss; + bss = list_entry(ptr, struct hostap_bss_info, list); + if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) { + bss->included = 1; + current_ev = __prism2_translate_scan( + local, scan, hscan, hostscan, bss, + bssid, current_ev, end_buf); + found++; + } + } + if (!found) { + current_ev = __prism2_translate_scan( + local, scan, hscan, hostscan, NULL, bssid, + current_ev, end_buf); + } + /* Check if there is space for one more entry */ + if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) { + /* Ask user space to try again with a bigger buffer */ + spin_unlock_bh(&local->lock); + return -E2BIG; + } + } + + /* Prism2 firmware has limits (32 at least in some versions) for number + * of BSSes in scan results. Extend this limit by using local BSS list. + */ + list_for_each(ptr, &local->bss_list) { + struct hostap_bss_info *bss; + bss = list_entry(ptr, struct hostap_bss_info, list); + if (bss->included) + continue; + current_ev = __prism2_translate_scan(local, NULL, NULL, 0, bss, + bss->bssid, current_ev, + end_buf); + /* Check if there is space for one more entry */ + if ((end_buf - current_ev) <= IW_EV_ADDR_LEN) { + /* Ask user space to try again with a bigger buffer */ + spin_unlock_bh(&local->lock); + return -E2BIG; + } + } + + spin_unlock_bh(&local->lock); + + return current_ev - buffer; +} +#endif /* PRISM2_NO_STATION_MODES */ + + +static inline int prism2_ioctl_giwscan_sta(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ +#ifdef PRISM2_NO_STATION_MODES + return -EOPNOTSUPP; +#else /* PRISM2_NO_STATION_MODES */ + struct hostap_interface *iface; + local_info_t *local; + int res; + + iface = netdev_priv(dev); + local = iface->local; + + /* Wait until the scan is finished. We can probably do better + * than that - Jean II */ + if (local->scan_timestamp && + time_before(jiffies, local->scan_timestamp + 3 * HZ)) { + /* Important note : we don't want to block the caller + * until results are ready for various reasons. + * First, managing wait queues is complex and racy + * (there may be multiple simultaneous callers). + * Second, we grab some rtnetlink lock before comming + * here (in dev_ioctl()). + * Third, the caller can wait on the Wireless Event + * - Jean II */ + return -EAGAIN; + } + local->scan_timestamp = 0; + + res = prism2_translate_scan(local, extra, data->length); + + if (res >= 0) { + data->length = res; + return 0; + } else { + data->length = 0; + return res; + } +#endif /* PRISM2_NO_STATION_MODES */ +} + + +static int prism2_ioctl_giwscan(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + int res; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->iw_mode == IW_MODE_MASTER) { + /* In MASTER mode, it doesn't make sense to go around + * scanning the frequencies and make the stations we serve + * wait when what the user is really interested about is the + * list of stations and access points we are talking to. + * So, just extract results from our cache... + * Jean II */ + + /* Translate to WE format */ + res = prism2_ap_translate_scan(dev, extra); + if (res >= 0) { + printk(KERN_DEBUG "Scan result translation succeeded " + "(length=%d)\n", res); + data->length = res; + return 0; + } else { + printk(KERN_DEBUG + "Scan result translation failed (res=%d)\n", + res); + data->length = 0; + return res; + } + } else { + /* Station mode */ + return prism2_ioctl_giwscan_sta(dev, info, data, extra); + } +} + + +static const struct iw_priv_args prism2_priv[] = { + { PRISM2_IOCTL_MONITOR, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor" }, + { PRISM2_IOCTL_READMIF, + IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, + IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "readmif" }, + { PRISM2_IOCTL_WRITEMIF, + IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 2, 0, "writemif" }, + { PRISM2_IOCTL_RESET, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "reset" }, + { PRISM2_IOCTL_INQUIRE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "inquire" }, + { PRISM2_IOCTL_SET_RID_WORD, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_rid_word" }, + { PRISM2_IOCTL_MACCMD, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "maccmd" }, + { PRISM2_IOCTL_WDS_ADD, + IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_add" }, + { PRISM2_IOCTL_WDS_DEL, + IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "wds_del" }, + { PRISM2_IOCTL_ADDMAC, + IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "addmac" }, + { PRISM2_IOCTL_DELMAC, + IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "delmac" }, + { PRISM2_IOCTL_KICKMAC, + IW_PRIV_TYPE_ADDR | IW_PRIV_SIZE_FIXED | 1, 0, "kickmac" }, + /* --- raw access to sub-ioctls --- */ + { PRISM2_IOCTL_PRISM2_PARAM, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "prism2_param" }, + { PRISM2_IOCTL_GET_PRISM2_PARAM, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprism2_param" }, + /* --- sub-ioctls handlers --- */ + { PRISM2_IOCTL_PRISM2_PARAM, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "" }, + { PRISM2_IOCTL_GET_PRISM2_PARAM, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "" }, + /* --- sub-ioctls definitions --- */ + { PRISM2_PARAM_TXRATECTRL, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "txratectrl" }, + { PRISM2_PARAM_TXRATECTRL, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettxratectrl" }, + { PRISM2_PARAM_BEACON_INT, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "beacon_int" }, + { PRISM2_PARAM_BEACON_INT, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbeacon_int" }, +#ifndef PRISM2_NO_STATION_MODES + { PRISM2_PARAM_PSEUDO_IBSS, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "pseudo_ibss" }, + { PRISM2_PARAM_PSEUDO_IBSS, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getpseudo_ibss" }, +#endif /* PRISM2_NO_STATION_MODES */ + { PRISM2_PARAM_ALC, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "alc" }, + { PRISM2_PARAM_ALC, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getalc" }, + { PRISM2_PARAM_DUMP, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dump" }, + { PRISM2_PARAM_DUMP, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdump" }, + { PRISM2_PARAM_OTHER_AP_POLICY, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "other_ap_policy" }, + { PRISM2_PARAM_OTHER_AP_POLICY, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getother_ap_pol" }, + { PRISM2_PARAM_AP_MAX_INACTIVITY, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_inactivity" }, + { PRISM2_PARAM_AP_MAX_INACTIVITY, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_inactivi" }, + { PRISM2_PARAM_AP_BRIDGE_PACKETS, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bridge_packets" }, + { PRISM2_PARAM_AP_BRIDGE_PACKETS, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbridge_packe" }, + { PRISM2_PARAM_DTIM_PERIOD, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "dtim_period" }, + { PRISM2_PARAM_DTIM_PERIOD, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdtim_period" }, + { PRISM2_PARAM_AP_NULLFUNC_ACK, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "nullfunc_ack" }, + { PRISM2_PARAM_AP_NULLFUNC_ACK, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getnullfunc_ack" }, + { PRISM2_PARAM_MAX_WDS, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "max_wds" }, + { PRISM2_PARAM_MAX_WDS, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmax_wds" }, + { PRISM2_PARAM_AP_AUTOM_AP_WDS, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "autom_ap_wds" }, + { PRISM2_PARAM_AP_AUTOM_AP_WDS, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getautom_ap_wds" }, + { PRISM2_PARAM_AP_AUTH_ALGS, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_auth_algs" }, + { PRISM2_PARAM_AP_AUTH_ALGS, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_auth_algs" }, + { PRISM2_PARAM_MONITOR_ALLOW_FCSERR, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "allow_fcserr" }, + { PRISM2_PARAM_MONITOR_ALLOW_FCSERR, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getallow_fcserr" }, + { PRISM2_PARAM_HOST_ENCRYPT, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_encrypt" }, + { PRISM2_PARAM_HOST_ENCRYPT, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_encrypt" }, + { PRISM2_PARAM_HOST_DECRYPT, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_decrypt" }, + { PRISM2_PARAM_HOST_DECRYPT, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_decrypt" }, + { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_rx" }, + { PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_rx" }, + { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "busmaster_tx" }, + { PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbusmaster_tx" }, +#ifndef PRISM2_NO_STATION_MODES + { PRISM2_PARAM_HOST_ROAMING, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "host_roaming" }, + { PRISM2_PARAM_HOST_ROAMING, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethost_roaming" }, +#endif /* PRISM2_NO_STATION_MODES */ + { PRISM2_PARAM_BCRX_STA_KEY, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "bcrx_sta_key" }, + { PRISM2_PARAM_BCRX_STA_KEY, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbcrx_sta_key" }, + { PRISM2_PARAM_IEEE_802_1X, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ieee_802_1x" }, + { PRISM2_PARAM_IEEE_802_1X, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getieee_802_1x" }, + { PRISM2_PARAM_ANTSEL_TX, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_tx" }, + { PRISM2_PARAM_ANTSEL_TX, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_tx" }, + { PRISM2_PARAM_ANTSEL_RX, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "antsel_rx" }, + { PRISM2_PARAM_ANTSEL_RX, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getantsel_rx" }, + { PRISM2_PARAM_MONITOR_TYPE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "monitor_type" }, + { PRISM2_PARAM_MONITOR_TYPE, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getmonitor_type" }, + { PRISM2_PARAM_WDS_TYPE, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wds_type" }, + { PRISM2_PARAM_WDS_TYPE, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwds_type" }, + { PRISM2_PARAM_HOSTSCAN, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostscan" }, + { PRISM2_PARAM_HOSTSCAN, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostscan" }, + { PRISM2_PARAM_AP_SCAN, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "ap_scan" }, + { PRISM2_PARAM_AP_SCAN, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getap_scan" }, + { PRISM2_PARAM_ENH_SEC, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "enh_sec" }, + { PRISM2_PARAM_ENH_SEC, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getenh_sec" }, +#ifdef PRISM2_IO_DEBUG + { PRISM2_PARAM_IO_DEBUG, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "io_debug" }, + { PRISM2_PARAM_IO_DEBUG, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getio_debug" }, +#endif /* PRISM2_IO_DEBUG */ + { PRISM2_PARAM_BASIC_RATES, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "basic_rates" }, + { PRISM2_PARAM_BASIC_RATES, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getbasic_rates" }, + { PRISM2_PARAM_OPER_RATES, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "oper_rates" }, + { PRISM2_PARAM_OPER_RATES, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getoper_rates" }, + { PRISM2_PARAM_HOSTAPD, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd" }, + { PRISM2_PARAM_HOSTAPD, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd" }, + { PRISM2_PARAM_HOSTAPD_STA, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "hostapd_sta" }, + { PRISM2_PARAM_HOSTAPD_STA, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gethostapd_sta" }, + { PRISM2_PARAM_WPA, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "wpa" }, + { PRISM2_PARAM_WPA, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getwpa" }, + { PRISM2_PARAM_PRIVACY_INVOKED, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "privacy_invoked" }, + { PRISM2_PARAM_PRIVACY_INVOKED, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getprivacy_invo" }, + { PRISM2_PARAM_TKIP_COUNTERMEASURES, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "tkip_countermea" }, + { PRISM2_PARAM_TKIP_COUNTERMEASURES, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "gettkip_counter" }, + { PRISM2_PARAM_DROP_UNENCRYPTED, + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "drop_unencrypte" }, + { PRISM2_PARAM_DROP_UNENCRYPTED, + 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "getdrop_unencry" }, +}; + + +static int prism2_ioctl_priv_inquire(struct net_device *dev, int *i) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->cmd(dev, HFA384X_CMDCODE_INQUIRE, *i, NULL, NULL)) + return -EOPNOTSUPP; + + return 0; +} + + +static int prism2_ioctl_priv_prism2_param(struct net_device *dev, + struct iw_request_info *info, + void *wrqu, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + int *i = (int *) extra; + int param = *i; + int value = *(i + 1); + int ret = 0; + u16 val; + + iface = netdev_priv(dev); + local = iface->local; + + switch (param) { + case PRISM2_PARAM_TXRATECTRL: + local->fw_tx_rate_control = value; + break; + + case PRISM2_PARAM_BEACON_INT: + if (hostap_set_word(dev, HFA384X_RID_CNFBEACONINT, value) || + local->func->reset_port(dev)) + ret = -EINVAL; + else + local->beacon_int = value; + break; + +#ifndef PRISM2_NO_STATION_MODES + case PRISM2_PARAM_PSEUDO_IBSS: + if (value == local->pseudo_adhoc) + break; + + if (value != 0 && value != 1) { + ret = -EINVAL; + break; + } + + printk(KERN_DEBUG "prism2: %s: pseudo IBSS change %d -> %d\n", + dev->name, local->pseudo_adhoc, value); + local->pseudo_adhoc = value; + if (local->iw_mode != IW_MODE_ADHOC) + break; + + if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, + hostap_get_porttype(local))) { + ret = -EOPNOTSUPP; + break; + } + + if (local->func->reset_port(dev)) + ret = -EINVAL; + break; +#endif /* PRISM2_NO_STATION_MODES */ + + case PRISM2_PARAM_ALC: + printk(KERN_DEBUG "%s: %s ALC\n", dev->name, + value == 0 ? "Disabling" : "Enabling"); + val = HFA384X_TEST_CFG_BIT_ALC; + local->func->cmd(dev, HFA384X_CMDCODE_TEST | + (HFA384X_TEST_CFG_BITS << 8), + value == 0 ? 0 : 1, &val, NULL); + break; + + case PRISM2_PARAM_DUMP: + local->frame_dump = value; + break; + + case PRISM2_PARAM_OTHER_AP_POLICY: + if (value < 0 || value > 3) { + ret = -EINVAL; + break; + } + if (local->ap != NULL) + local->ap->ap_policy = value; + break; + + case PRISM2_PARAM_AP_MAX_INACTIVITY: + if (value < 0 || value > 7 * 24 * 60 * 60) { + ret = -EINVAL; + break; + } + if (local->ap != NULL) + local->ap->max_inactivity = value * HZ; + break; + + case PRISM2_PARAM_AP_BRIDGE_PACKETS: + if (local->ap != NULL) + local->ap->bridge_packets = value; + break; + + case PRISM2_PARAM_DTIM_PERIOD: + if (value < 0 || value > 65535) { + ret = -EINVAL; + break; + } + if (hostap_set_word(dev, HFA384X_RID_CNFOWNDTIMPERIOD, value) + || local->func->reset_port(dev)) + ret = -EINVAL; + else + local->dtim_period = value; + break; + + case PRISM2_PARAM_AP_NULLFUNC_ACK: + if (local->ap != NULL) + local->ap->nullfunc_ack = value; + break; + + case PRISM2_PARAM_MAX_WDS: + local->wds_max_connections = value; + break; + + case PRISM2_PARAM_AP_AUTOM_AP_WDS: + if (local->ap != NULL) { + if (!local->ap->autom_ap_wds && value) { + /* add WDS link to all APs in STA table */ + hostap_add_wds_links(local); + } + local->ap->autom_ap_wds = value; + } + break; + + case PRISM2_PARAM_AP_AUTH_ALGS: + local->auth_algs = value; + if (hostap_set_auth_algs(local)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_MONITOR_ALLOW_FCSERR: + local->monitor_allow_fcserr = value; + break; + + case PRISM2_PARAM_HOST_ENCRYPT: + local->host_encrypt = value; + if (hostap_set_encryption(local) || + local->func->reset_port(dev)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_HOST_DECRYPT: + local->host_decrypt = value; + if (hostap_set_encryption(local) || + local->func->reset_port(dev)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX: + local->bus_master_threshold_rx = value; + break; + + case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX: + local->bus_master_threshold_tx = value; + break; + +#ifndef PRISM2_NO_STATION_MODES + case PRISM2_PARAM_HOST_ROAMING: + if (value < 0 || value > 2) { + ret = -EINVAL; + break; + } + local->host_roaming = value; + if (hostap_set_roaming(local) || local->func->reset_port(dev)) + ret = -EINVAL; + break; +#endif /* PRISM2_NO_STATION_MODES */ + + case PRISM2_PARAM_BCRX_STA_KEY: + local->bcrx_sta_key = value; + break; + + case PRISM2_PARAM_IEEE_802_1X: + local->ieee_802_1x = value; + break; + + case PRISM2_PARAM_ANTSEL_TX: + if (value < 0 || value > HOSTAP_ANTSEL_HIGH) { + ret = -EINVAL; + break; + } + local->antsel_tx = value; + hostap_set_antsel(local); + break; + + case PRISM2_PARAM_ANTSEL_RX: + if (value < 0 || value > HOSTAP_ANTSEL_HIGH) { + ret = -EINVAL; + break; + } + local->antsel_rx = value; + hostap_set_antsel(local); + break; + + case PRISM2_PARAM_MONITOR_TYPE: + if (value != PRISM2_MONITOR_80211 && + value != PRISM2_MONITOR_CAPHDR && + value != PRISM2_MONITOR_PRISM) { + ret = -EINVAL; + break; + } + local->monitor_type = value; + if (local->iw_mode == IW_MODE_MONITOR) + hostap_monitor_set_type(local); + break; + + case PRISM2_PARAM_WDS_TYPE: + local->wds_type = value; + break; + + case PRISM2_PARAM_HOSTSCAN: + { + struct hfa384x_hostscan_request scan_req; + u16 rate; + + memset(&scan_req, 0, sizeof(scan_req)); + scan_req.channel_list = __constant_cpu_to_le16(0x3fff); + switch (value) { + case 1: rate = HFA384X_RATES_1MBPS; break; + case 2: rate = HFA384X_RATES_2MBPS; break; + case 3: rate = HFA384X_RATES_5MBPS; break; + case 4: rate = HFA384X_RATES_11MBPS; break; + default: rate = HFA384X_RATES_1MBPS; break; + } + scan_req.txrate = cpu_to_le16(rate); + /* leave SSID empty to accept all SSIDs */ + + if (local->iw_mode == IW_MODE_MASTER) { + if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, + HFA384X_PORTTYPE_BSS) || + local->func->reset_port(dev)) + printk(KERN_DEBUG "Leaving Host AP mode " + "for HostScan failed\n"); + } + + if (local->func->set_rid(dev, HFA384X_RID_HOSTSCAN, &scan_req, + sizeof(scan_req))) { + printk(KERN_DEBUG "HOSTSCAN failed\n"); + ret = -EINVAL; + } + if (local->iw_mode == IW_MODE_MASTER) { + wait_queue_t __wait; + init_waitqueue_entry(&__wait, current); + add_wait_queue(&local->hostscan_wq, &__wait); + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + if (signal_pending(current)) + ret = -EINTR; + set_current_state(TASK_RUNNING); + remove_wait_queue(&local->hostscan_wq, &__wait); + + if (hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, + HFA384X_PORTTYPE_HOSTAP) || + local->func->reset_port(dev)) + printk(KERN_DEBUG "Returning to Host AP mode " + "after HostScan failed\n"); + } + break; + } + + case PRISM2_PARAM_AP_SCAN: + local->passive_scan_interval = value; + if (timer_pending(&local->passive_scan_timer)) + del_timer(&local->passive_scan_timer); + if (value > 0) { + local->passive_scan_timer.expires = jiffies + + local->passive_scan_interval * HZ; + add_timer(&local->passive_scan_timer); + } + break; + + case PRISM2_PARAM_ENH_SEC: + if (value < 0 || value > 3) { + ret = -EINVAL; + break; + } + local->enh_sec = value; + if (hostap_set_word(dev, HFA384X_RID_CNFENHSECURITY, + local->enh_sec) || + local->func->reset_port(dev)) { + printk(KERN_INFO "%s: cnfEnhSecurity requires STA f/w " + "1.6.3 or newer\n", dev->name); + ret = -EOPNOTSUPP; + } + break; + +#ifdef PRISM2_IO_DEBUG + case PRISM2_PARAM_IO_DEBUG: + local->io_debug_enabled = value; + break; +#endif /* PRISM2_IO_DEBUG */ + + case PRISM2_PARAM_BASIC_RATES: + if ((value & local->tx_rate_control) != value || value == 0) { + printk(KERN_INFO "%s: invalid basic rate set - basic " + "rates must be in supported rate set\n", + dev->name); + ret = -EINVAL; + break; + } + local->basic_rates = value; + if (hostap_set_word(dev, HFA384X_RID_CNFBASICRATES, + local->basic_rates) || + local->func->reset_port(dev)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_OPER_RATES: + local->tx_rate_control = value; + if (hostap_set_rate(dev)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_HOSTAPD: + ret = hostap_set_hostapd(local, value, 1); + break; + + case PRISM2_PARAM_HOSTAPD_STA: + ret = hostap_set_hostapd_sta(local, value, 1); + break; + + case PRISM2_PARAM_WPA: + local->wpa = value; + if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0)) + ret = -EOPNOTSUPP; + else if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, + value ? 1 : 0)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_PRIVACY_INVOKED: + local->privacy_invoked = value; + if (hostap_set_encryption(local) || + local->func->reset_port(dev)) + ret = -EINVAL; + break; + + case PRISM2_PARAM_TKIP_COUNTERMEASURES: + local->tkip_countermeasures = value; + break; + + case PRISM2_PARAM_DROP_UNENCRYPTED: + local->drop_unencrypted = value; + break; + + default: + printk(KERN_DEBUG "%s: prism2_param: unknown param %d\n", + dev->name, param); + ret = -EOPNOTSUPP; + break; + } + + return ret; +} + + +static int prism2_ioctl_priv_get_prism2_param(struct net_device *dev, + struct iw_request_info *info, + void *wrqu, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + int *param = (int *) extra; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + switch (*param) { + case PRISM2_PARAM_TXRATECTRL: + *param = local->fw_tx_rate_control; + break; + + case PRISM2_PARAM_BEACON_INT: + *param = local->beacon_int; + break; + + case PRISM2_PARAM_PSEUDO_IBSS: + *param = local->pseudo_adhoc; + break; + + case PRISM2_PARAM_ALC: + ret = -EOPNOTSUPP; /* FIX */ + break; + + case PRISM2_PARAM_DUMP: + *param = local->frame_dump; + break; + + case PRISM2_PARAM_OTHER_AP_POLICY: + if (local->ap != NULL) + *param = local->ap->ap_policy; + else + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_AP_MAX_INACTIVITY: + if (local->ap != NULL) + *param = local->ap->max_inactivity / HZ; + else + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_AP_BRIDGE_PACKETS: + if (local->ap != NULL) + *param = local->ap->bridge_packets; + else + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_DTIM_PERIOD: + *param = local->dtim_period; + break; + + case PRISM2_PARAM_AP_NULLFUNC_ACK: + if (local->ap != NULL) + *param = local->ap->nullfunc_ack; + else + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_MAX_WDS: + *param = local->wds_max_connections; + break; + + case PRISM2_PARAM_AP_AUTOM_AP_WDS: + if (local->ap != NULL) + *param = local->ap->autom_ap_wds; + else + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_AP_AUTH_ALGS: + *param = local->auth_algs; + break; + + case PRISM2_PARAM_MONITOR_ALLOW_FCSERR: + *param = local->monitor_allow_fcserr; + break; + + case PRISM2_PARAM_HOST_ENCRYPT: + *param = local->host_encrypt; + break; + + case PRISM2_PARAM_HOST_DECRYPT: + *param = local->host_decrypt; + break; + + case PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX: + *param = local->bus_master_threshold_rx; + break; + + case PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX: + *param = local->bus_master_threshold_tx; + break; + + case PRISM2_PARAM_HOST_ROAMING: + *param = local->host_roaming; + break; + + case PRISM2_PARAM_BCRX_STA_KEY: + *param = local->bcrx_sta_key; + break; + + case PRISM2_PARAM_IEEE_802_1X: + *param = local->ieee_802_1x; + break; + + case PRISM2_PARAM_ANTSEL_TX: + *param = local->antsel_tx; + break; + + case PRISM2_PARAM_ANTSEL_RX: + *param = local->antsel_rx; + break; + + case PRISM2_PARAM_MONITOR_TYPE: + *param = local->monitor_type; + break; + + case PRISM2_PARAM_WDS_TYPE: + *param = local->wds_type; + break; + + case PRISM2_PARAM_HOSTSCAN: + ret = -EOPNOTSUPP; + break; + + case PRISM2_PARAM_AP_SCAN: + *param = local->passive_scan_interval; + break; + + case PRISM2_PARAM_ENH_SEC: + *param = local->enh_sec; + break; + +#ifdef PRISM2_IO_DEBUG + case PRISM2_PARAM_IO_DEBUG: + *param = local->io_debug_enabled; + break; +#endif /* PRISM2_IO_DEBUG */ + + case PRISM2_PARAM_BASIC_RATES: + *param = local->basic_rates; + break; + + case PRISM2_PARAM_OPER_RATES: + *param = local->tx_rate_control; + break; + + case PRISM2_PARAM_HOSTAPD: + *param = local->hostapd; + break; + + case PRISM2_PARAM_HOSTAPD_STA: + *param = local->hostapd_sta; + break; + + case PRISM2_PARAM_WPA: + if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0)) + ret = -EOPNOTSUPP; + *param = local->wpa; + break; + + case PRISM2_PARAM_PRIVACY_INVOKED: + *param = local->privacy_invoked; + break; + + case PRISM2_PARAM_TKIP_COUNTERMEASURES: + *param = local->tkip_countermeasures; + break; + + case PRISM2_PARAM_DROP_UNENCRYPTED: + *param = local->drop_unencrypted; + break; + + default: + printk(KERN_DEBUG "%s: get_prism2_param: unknown param %d\n", + dev->name, *param); + ret = -EOPNOTSUPP; + break; + } + + return ret; +} + + +static int prism2_ioctl_priv_readmif(struct net_device *dev, + struct iw_request_info *info, + void *wrqu, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 resp0; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->func->cmd(dev, HFA384X_CMDCODE_READMIF, *extra, NULL, + &resp0)) + return -EOPNOTSUPP; + else + *extra = resp0; + + return 0; +} + + +static int prism2_ioctl_priv_writemif(struct net_device *dev, + struct iw_request_info *info, + void *wrqu, char *extra) +{ + struct hostap_interface *iface; + local_info_t *local; + u16 cr, val; + + iface = netdev_priv(dev); + local = iface->local; + + cr = *extra; + val = *(extra + 1); + if (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF, cr, &val, NULL)) + return -EOPNOTSUPP; + + return 0; +} + + +static int prism2_ioctl_priv_monitor(struct net_device *dev, int *i) +{ + struct hostap_interface *iface; + local_info_t *local; + int ret = 0; + u32 mode; + + iface = netdev_priv(dev); + local = iface->local; + + printk(KERN_DEBUG "%s: process %d (%s) used deprecated iwpriv monitor " + "- update software to use iwconfig mode monitor\n", + dev->name, current->pid, current->comm); + + /* Backward compatibility code - this can be removed at some point */ + + if (*i == 0) { + /* Disable monitor mode - old mode was not saved, so go to + * Master mode */ + mode = IW_MODE_MASTER; + ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL); + } else if (*i == 1) { + /* netlink socket mode is not supported anymore since it did + * not separate different devices from each other and was not + * best method for delivering large amount of packets to + * user space */ + ret = -EOPNOTSUPP; + } else if (*i == 2 || *i == 3) { + switch (*i) { + case 2: + local->monitor_type = PRISM2_MONITOR_80211; + break; + case 3: + local->monitor_type = PRISM2_MONITOR_PRISM; + break; + } + mode = IW_MODE_MONITOR; + ret = prism2_ioctl_siwmode(dev, NULL, &mode, NULL); + hostap_monitor_mode_enable(local); + } else + ret = -EINVAL; + + return ret; +} + + +static int prism2_ioctl_priv_reset(struct net_device *dev, int *i) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + printk(KERN_DEBUG "%s: manual reset request(%d)\n", dev->name, *i); + switch (*i) { + case 0: + /* Disable and enable card */ + local->func->hw_shutdown(dev, 1); + local->func->hw_config(dev, 0); + break; + + case 1: + /* COR sreset */ + local->func->hw_reset(dev); + break; + + case 2: + /* Disable and enable port 0 */ + local->func->reset_port(dev); + break; + + case 3: + prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING); + if (local->func->cmd(dev, HFA384X_CMDCODE_DISABLE, 0, NULL, + NULL)) + return -EINVAL; + break; + + case 4: + if (local->func->cmd(dev, HFA384X_CMDCODE_ENABLE, 0, NULL, + NULL)) + return -EINVAL; + break; + + default: + printk(KERN_DEBUG "Unknown reset request %d\n", *i); + return -EOPNOTSUPP; + } + + return 0; +} + + +static int prism2_ioctl_priv_set_rid_word(struct net_device *dev, int *i) +{ + int rid = *i; + int value = *(i + 1); + + printk(KERN_DEBUG "%s: Set RID[0x%X] = %d\n", dev->name, rid, value); + + if (hostap_set_word(dev, rid, value)) + return -EINVAL; + + return 0; +} + + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT +static int ap_mac_cmd_ioctl(local_info_t *local, int *cmd) +{ + int ret = 0; + + switch (*cmd) { + case AP_MAC_CMD_POLICY_OPEN: + local->ap->mac_restrictions.policy = MAC_POLICY_OPEN; + break; + case AP_MAC_CMD_POLICY_ALLOW: + local->ap->mac_restrictions.policy = MAC_POLICY_ALLOW; + break; + case AP_MAC_CMD_POLICY_DENY: + local->ap->mac_restrictions.policy = MAC_POLICY_DENY; + break; + case AP_MAC_CMD_FLUSH: + ap_control_flush_macs(&local->ap->mac_restrictions); + break; + case AP_MAC_CMD_KICKALL: + ap_control_kickall(local->ap); + hostap_deauth_all_stas(local->dev, local->ap, 0); + break; + default: + ret = -EOPNOTSUPP; + break; + } + + return ret; +} +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + +#ifdef PRISM2_DOWNLOAD_SUPPORT +static int prism2_ioctl_priv_download(local_info_t *local, struct iw_point *p) +{ + struct prism2_download_param *param; + int ret = 0; + + if (p->length < sizeof(struct prism2_download_param) || + p->length > 1024 || !p->pointer) + return -EINVAL; + + param = (struct prism2_download_param *) + kmalloc(p->length, GFP_KERNEL); + if (param == NULL) + return -ENOMEM; + + if (copy_from_user(param, p->pointer, p->length)) { + ret = -EFAULT; + goto out; + } + + if (p->length < sizeof(struct prism2_download_param) + + param->num_areas * sizeof(struct prism2_download_area)) { + ret = -EINVAL; + goto out; + } + + ret = local->func->download(local, param); + + out: + if (param != NULL) + kfree(param); + + return ret; +} +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + +static int prism2_set_genericelement(struct net_device *dev, u8 *elem, + size_t len) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + u8 *buf; + + /* + * Add 16-bit length in the beginning of the buffer because Prism2 RID + * includes it. + */ + buf = kmalloc(len + 2, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + *((u16 *) buf) = cpu_to_le16(len); + memcpy(buf + 2, elem, len); + + kfree(local->generic_elem); + local->generic_elem = buf; + local->generic_elem_len = len + 2; + + return local->func->set_rid(local->dev, HFA384X_RID_GENERICELEMENT, + buf, len + 2); +} + + +static int prism2_ioctl_siwauth(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *data, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + + switch (data->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * Host AP driver does not use these parameters and allows + * wpa_supplicant to control them internally. + */ + break; + case IW_AUTH_TKIP_COUNTERMEASURES: + local->tkip_countermeasures = data->value; + break; + case IW_AUTH_DROP_UNENCRYPTED: + local->drop_unencrypted = data->value; + break; + case IW_AUTH_80211_AUTH_ALG: + local->auth_algs = data->value; + break; + case IW_AUTH_WPA_ENABLED: + if (data->value == 0) { + local->wpa = 0; + if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0)) + break; + prism2_set_genericelement(dev, "", 0); + local->host_roaming = 0; + local->privacy_invoked = 0; + if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, + 0) || + hostap_set_roaming(local) || + hostap_set_encryption(local) || + local->func->reset_port(dev)) + return -EINVAL; + break; + } + if (local->sta_fw_ver < PRISM2_FW_VER(1,7,0)) + return -EOPNOTSUPP; + local->host_roaming = 2; + local->privacy_invoked = 1; + local->wpa = 1; + if (hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, 1) || + hostap_set_roaming(local) || + hostap_set_encryption(local) || + local->func->reset_port(dev)) + return -EINVAL; + break; + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + local->ieee_802_1x = data->value; + break; + case IW_AUTH_PRIVACY_INVOKED: + local->privacy_invoked = data->value; + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + + +static int prism2_ioctl_giwauth(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *data, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + + switch (data->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + /* + * Host AP driver does not use these parameters and allows + * wpa_supplicant to control them internally. + */ + return -EOPNOTSUPP; + case IW_AUTH_TKIP_COUNTERMEASURES: + data->value = local->tkip_countermeasures; + break; + case IW_AUTH_DROP_UNENCRYPTED: + data->value = local->drop_unencrypted; + break; + case IW_AUTH_80211_AUTH_ALG: + data->value = local->auth_algs; + break; + case IW_AUTH_WPA_ENABLED: + data->value = local->wpa; + break; + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + data->value = local->ieee_802_1x; + break; + default: + return -EOPNOTSUPP; + } + return 0; +} + + +static int prism2_ioctl_siwencodeext(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *erq, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; + int i, ret = 0; + struct hostap_crypto_ops *ops; + struct prism2_crypt_data **crypt; + void *sta_ptr; + u8 *addr; + const char *alg, *module; + + i = erq->flags & IW_ENCODE_INDEX; + if (i > WEP_KEYS) + return -EINVAL; + if (i < 1 || i > WEP_KEYS) + i = local->tx_keyidx; + else + i--; + if (i < 0 || i >= WEP_KEYS) + return -EINVAL; + + addr = ext->addr.sa_data; + if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff && + addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) { + sta_ptr = NULL; + crypt = &local->crypt[i]; + } else { + if (i != 0) + return -EINVAL; + sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt); + if (sta_ptr == NULL) { + if (local->iw_mode == IW_MODE_INFRA) { + /* + * TODO: add STA entry for the current AP so + * that unicast key can be used. For now, this + * is emulated by using default key idx 0. + */ + i = 0; + crypt = &local->crypt[i]; + } else + return -EINVAL; + } + } + + if ((erq->flags & IW_ENCODE_DISABLED) || + ext->alg == IW_ENCODE_ALG_NONE) { + if (*crypt) + prism2_crypt_delayed_deinit(local, crypt); + goto done; + } + + switch (ext->alg) { + case IW_ENCODE_ALG_WEP: + alg = "WEP"; + module = "hostap_crypt_wep"; + break; + case IW_ENCODE_ALG_TKIP: + alg = "TKIP"; + module = "hostap_crypt_tkip"; + break; + case IW_ENCODE_ALG_CCMP: + alg = "CCMP"; + module = "hostap_crypt_ccmp"; + break; + default: + printk(KERN_DEBUG "%s: unsupported algorithm %d\n", + local->dev->name, ext->alg); + ret = -EOPNOTSUPP; + goto done; + } + + ops = hostap_get_crypto_ops(alg); + if (ops == NULL) { + request_module(module); + ops = hostap_get_crypto_ops(alg); + } + if (ops == NULL) { + printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n", + local->dev->name, alg); + ret = -EOPNOTSUPP; + goto done; + } + + if (sta_ptr || ext->alg != IW_ENCODE_ALG_WEP) { + /* + * Per station encryption and other than WEP algorithms + * require host-based encryption, so force them on + * automatically. + */ + local->host_decrypt = local->host_encrypt = 1; + } + + if (*crypt == NULL || (*crypt)->ops != ops) { + struct prism2_crypt_data *new_crypt; + + prism2_crypt_delayed_deinit(local, crypt); + + new_crypt = (struct prism2_crypt_data *) + kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL); + if (new_crypt == NULL) { + ret = -ENOMEM; + goto done; + } + memset(new_crypt, 0, sizeof(struct prism2_crypt_data)); + new_crypt->ops = ops; + new_crypt->priv = new_crypt->ops->init(i); + if (new_crypt->priv == NULL) { + kfree(new_crypt); + ret = -EINVAL; + goto done; + } + + *crypt = new_crypt; + } + + /* + * TODO: if ext_flags does not have IW_ENCODE_EXT_RX_SEQ_VALID, the + * existing seq# should not be changed. + * TODO: if ext_flags has IW_ENCODE_EXT_TX_SEQ_VALID, next TX seq# + * should be changed to something else than zero. + */ + if ((!(ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) || ext->key_len > 0) + && (*crypt)->ops->set_key && + (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, + (*crypt)->priv) < 0) { + printk(KERN_DEBUG "%s: key setting failed\n", + local->dev->name); + ret = -EINVAL; + goto done; + } + + if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { + if (!sta_ptr) + local->tx_keyidx = i; + else if (i) { + ret = -EINVAL; + goto done; + } + } + + + if (sta_ptr == NULL && ext->key_len > 0) { + int first = 1, j; + for (j = 0; j < WEP_KEYS; j++) { + if (j != i && local->crypt[j]) { + first = 0; + break; + } + } + if (first) + local->tx_keyidx = i; + } + + done: + if (sta_ptr) + hostap_handle_sta_release(sta_ptr); + + local->open_wep = erq->flags & IW_ENCODE_OPEN; + + /* + * Do not reset port0 if card is in Managed mode since resetting will + * generate new IEEE 802.11 authentication which may end up in looping + * with IEEE 802.1X. Prism2 documentation seem to require port reset + * after WEP configuration. However, keys are apparently changed at + * least in Managed mode. + */ + if (ret == 0 && + (hostap_set_encryption(local) || + (local->iw_mode != IW_MODE_INFRA && + local->func->reset_port(local->dev)))) + ret = -EINVAL; + + return ret; +} + + +static int prism2_ioctl_giwencodeext(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *erq, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + struct prism2_crypt_data **crypt; + void *sta_ptr; + int max_key_len, i; + struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; + u8 *addr; + + max_key_len = erq->length - sizeof(*ext); + if (max_key_len < 0) + return -EINVAL; + + i = erq->flags & IW_ENCODE_INDEX; + if (i < 1 || i > WEP_KEYS) + i = local->tx_keyidx; + else + i--; + + addr = ext->addr.sa_data; + if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff && + addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) { + sta_ptr = NULL; + crypt = &local->crypt[i]; + } else { + i = 0; + sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt); + if (sta_ptr == NULL) + return -EINVAL; + } + erq->flags = i + 1; + memset(ext, 0, sizeof(*ext)); + + if (*crypt == NULL || (*crypt)->ops == NULL) { + ext->alg = IW_ENCODE_ALG_NONE; + ext->key_len = 0; + erq->flags |= IW_ENCODE_DISABLED; + } else { + if (strcmp((*crypt)->ops->name, "WEP") == 0) + ext->alg = IW_ENCODE_ALG_WEP; + else if (strcmp((*crypt)->ops->name, "TKIP") == 0) + ext->alg = IW_ENCODE_ALG_TKIP; + else if (strcmp((*crypt)->ops->name, "CCMP") == 0) + ext->alg = IW_ENCODE_ALG_CCMP; + else + return -EINVAL; + + if ((*crypt)->ops->get_key) { + ext->key_len = + (*crypt)->ops->get_key(ext->key, + max_key_len, + ext->tx_seq, + (*crypt)->priv); + if (ext->key_len && + (ext->alg == IW_ENCODE_ALG_TKIP || + ext->alg == IW_ENCODE_ALG_CCMP)) + ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID; + } + } + + if (sta_ptr) + hostap_handle_sta_release(sta_ptr); + + return 0; +} + + +static int prism2_ioctl_set_encryption(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + int ret = 0; + struct hostap_crypto_ops *ops; + struct prism2_crypt_data **crypt; + void *sta_ptr; + + param->u.crypt.err = 0; + param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0'; + + if (param_len != + (int) ((char *) param->u.crypt.key - (char *) param) + + param->u.crypt.key_len) + return -EINVAL; + + if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && + param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && + param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { + if (param->u.crypt.idx >= WEP_KEYS) + return -EINVAL; + sta_ptr = NULL; + crypt = &local->crypt[param->u.crypt.idx]; + } else { + if (param->u.crypt.idx) + return -EINVAL; + sta_ptr = ap_crypt_get_ptrs( + local->ap, param->sta_addr, + (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_PERMANENT), + &crypt); + + if (sta_ptr == NULL) { + param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR; + return -EINVAL; + } + } + + if (strcmp(param->u.crypt.alg, "none") == 0) { + if (crypt) + prism2_crypt_delayed_deinit(local, crypt); + goto done; + } + + ops = hostap_get_crypto_ops(param->u.crypt.alg); + if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) { + request_module("hostap_crypt_wep"); + ops = hostap_get_crypto_ops(param->u.crypt.alg); + } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) { + request_module("hostap_crypt_tkip"); + ops = hostap_get_crypto_ops(param->u.crypt.alg); + } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) { + request_module("hostap_crypt_ccmp"); + ops = hostap_get_crypto_ops(param->u.crypt.alg); + } + if (ops == NULL) { + printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n", + local->dev->name, param->u.crypt.alg); + param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG; + ret = -EINVAL; + goto done; + } + + /* station based encryption and other than WEP algorithms require + * host-based encryption, so force them on automatically */ + local->host_decrypt = local->host_encrypt = 1; + + if (*crypt == NULL || (*crypt)->ops != ops) { + struct prism2_crypt_data *new_crypt; + + prism2_crypt_delayed_deinit(local, crypt); + + new_crypt = (struct prism2_crypt_data *) + kmalloc(sizeof(struct prism2_crypt_data), GFP_KERNEL); + if (new_crypt == NULL) { + ret = -ENOMEM; + goto done; + } + memset(new_crypt, 0, sizeof(struct prism2_crypt_data)); + new_crypt->ops = ops; + new_crypt->priv = new_crypt->ops->init(param->u.crypt.idx); + if (new_crypt->priv == NULL) { + kfree(new_crypt); + param->u.crypt.err = + HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED; + ret = -EINVAL; + goto done; + } + + *crypt = new_crypt; + } + + if ((!(param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) || + param->u.crypt.key_len > 0) && (*crypt)->ops->set_key && + (*crypt)->ops->set_key(param->u.crypt.key, + param->u.crypt.key_len, param->u.crypt.seq, + (*crypt)->priv) < 0) { + printk(KERN_DEBUG "%s: key setting failed\n", + local->dev->name); + param->u.crypt.err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED; + ret = -EINVAL; + goto done; + } + + if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) { + if (!sta_ptr) + local->tx_keyidx = param->u.crypt.idx; + else if (param->u.crypt.idx) { + printk(KERN_DEBUG "%s: TX key idx setting failed\n", + local->dev->name); + param->u.crypt.err = + HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED; + ret = -EINVAL; + goto done; + } + } + + done: + if (sta_ptr) + hostap_handle_sta_release(sta_ptr); + + /* Do not reset port0 if card is in Managed mode since resetting will + * generate new IEEE 802.11 authentication which may end up in looping + * with IEEE 802.1X. Prism2 documentation seem to require port reset + * after WEP configuration. However, keys are apparently changed at + * least in Managed mode. */ + if (ret == 0 && + (hostap_set_encryption(local) || + (local->iw_mode != IW_MODE_INFRA && + local->func->reset_port(local->dev)))) { + param->u.crypt.err = HOSTAP_CRYPT_ERR_CARD_CONF_FAILED; + return -EINVAL; + } + + return ret; +} + + +static int prism2_ioctl_get_encryption(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + struct prism2_crypt_data **crypt; + void *sta_ptr; + int max_key_len; + + param->u.crypt.err = 0; + + max_key_len = param_len - + (int) ((char *) param->u.crypt.key - (char *) param); + if (max_key_len < 0) + return -EINVAL; + + if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && + param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && + param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { + sta_ptr = NULL; + if (param->u.crypt.idx >= WEP_KEYS) + param->u.crypt.idx = local->tx_keyidx; + crypt = &local->crypt[param->u.crypt.idx]; + } else { + param->u.crypt.idx = 0; + sta_ptr = ap_crypt_get_ptrs(local->ap, param->sta_addr, 0, + &crypt); + + if (sta_ptr == NULL) { + param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR; + return -EINVAL; + } + } + + if (*crypt == NULL || (*crypt)->ops == NULL) { + memcpy(param->u.crypt.alg, "none", 5); + param->u.crypt.key_len = 0; + param->u.crypt.idx = 0xff; + } else { + strncpy(param->u.crypt.alg, (*crypt)->ops->name, + HOSTAP_CRYPT_ALG_NAME_LEN); + param->u.crypt.key_len = 0; + + memset(param->u.crypt.seq, 0, 8); + if ((*crypt)->ops->get_key) { + param->u.crypt.key_len = + (*crypt)->ops->get_key(param->u.crypt.key, + max_key_len, + param->u.crypt.seq, + (*crypt)->priv); + } + } + + if (sta_ptr) + hostap_handle_sta_release(sta_ptr); + + return 0; +} + + +static int prism2_ioctl_get_rid(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + int max_len, res; + + max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN; + if (max_len < 0) + return -EINVAL; + + res = local->func->get_rid(local->dev, param->u.rid.rid, + param->u.rid.data, param->u.rid.len, 0); + if (res >= 0) { + param->u.rid.len = res; + return 0; + } + + return res; +} + + +static int prism2_ioctl_set_rid(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + int max_len; + + max_len = param_len - PRISM2_HOSTAPD_RID_HDR_LEN; + if (max_len < 0 || max_len < param->u.rid.len) + return -EINVAL; + + return local->func->set_rid(local->dev, param->u.rid.rid, + param->u.rid.data, param->u.rid.len); +} + + +static int prism2_ioctl_set_assoc_ap_addr(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + printk(KERN_DEBUG "%ssta: associated as client with AP " MACSTR "\n", + local->dev->name, MAC2STR(param->sta_addr)); + memcpy(local->assoc_ap_addr, param->sta_addr, ETH_ALEN); + return 0; +} + + +static int prism2_ioctl_siwgenie(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + return prism2_set_genericelement(dev, extra, data->length); +} + + +static int prism2_ioctl_giwgenie(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + int len = local->generic_elem_len - 2; + + if (len <= 0 || local->generic_elem == NULL) { + data->length = 0; + return 0; + } + + if (data->length < len) + return -E2BIG; + + data->length = len; + memcpy(extra, local->generic_elem + 2, len); + + return 0; +} + + +static int prism2_ioctl_set_generic_element(local_info_t *local, + struct prism2_hostapd_param *param, + int param_len) +{ + int max_len, len; + + len = param->u.generic_elem.len; + max_len = param_len - PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN; + if (max_len < 0 || max_len < len) + return -EINVAL; + + return prism2_set_genericelement(local->dev, + param->u.generic_elem.data, len); +} + + +static int prism2_ioctl_siwmlme(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *data, char *extra) +{ + struct hostap_interface *iface = dev->priv; + local_info_t *local = iface->local; + struct iw_mlme *mlme = (struct iw_mlme *) extra; + u16 reason; + + reason = cpu_to_le16(mlme->reason_code); + + switch (mlme->cmd) { + case IW_MLME_DEAUTH: + return prism2_sta_send_mgmt(local, mlme->addr.sa_data, + WLAN_FC_STYPE_DEAUTH, + (u8 *) &reason, 2); + case IW_MLME_DISASSOC: + return prism2_sta_send_mgmt(local, mlme->addr.sa_data, + WLAN_FC_STYPE_DISASSOC, + (u8 *) &reason, 2); + default: + return -EOPNOTSUPP; + } +} + + +static int prism2_ioctl_mlme(local_info_t *local, + struct prism2_hostapd_param *param) +{ + u16 reason; + + reason = cpu_to_le16(param->u.mlme.reason_code); + switch (param->u.mlme.cmd) { + case MLME_STA_DEAUTH: + return prism2_sta_send_mgmt(local, param->sta_addr, + WLAN_FC_STYPE_DEAUTH, + (u8 *) &reason, 2); + case MLME_STA_DISASSOC: + return prism2_sta_send_mgmt(local, param->sta_addr, + WLAN_FC_STYPE_DISASSOC, + (u8 *) &reason, 2); + default: + return -EOPNOTSUPP; + } +} + + +static int prism2_ioctl_scan_req(local_info_t *local, + struct prism2_hostapd_param *param) +{ +#ifndef PRISM2_NO_STATION_MODES + if ((local->iw_mode != IW_MODE_INFRA && + local->iw_mode != IW_MODE_ADHOC) || + (local->sta_fw_ver < PRISM2_FW_VER(1,3,1))) + return -EOPNOTSUPP; + + if (!local->dev_enabled) + return -ENETDOWN; + + return prism2_request_hostscan(local->dev, param->u.scan_req.ssid, + param->u.scan_req.ssid_len); +#else /* PRISM2_NO_STATION_MODES */ + return -EOPNOTSUPP; +#endif /* PRISM2_NO_STATION_MODES */ +} + + +static int prism2_ioctl_priv_hostapd(local_info_t *local, struct iw_point *p) +{ + struct prism2_hostapd_param *param; + int ret = 0; + int ap_ioctl = 0; + + if (p->length < sizeof(struct prism2_hostapd_param) || + p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) + return -EINVAL; + + param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL); + if (param == NULL) + return -ENOMEM; + + if (copy_from_user(param, p->pointer, p->length)) { + ret = -EFAULT; + goto out; + } + + switch (param->cmd) { + case PRISM2_SET_ENCRYPTION: + ret = prism2_ioctl_set_encryption(local, param, p->length); + break; + case PRISM2_GET_ENCRYPTION: + ret = prism2_ioctl_get_encryption(local, param, p->length); + break; + case PRISM2_HOSTAPD_GET_RID: + ret = prism2_ioctl_get_rid(local, param, p->length); + break; + case PRISM2_HOSTAPD_SET_RID: + ret = prism2_ioctl_set_rid(local, param, p->length); + break; + case PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR: + ret = prism2_ioctl_set_assoc_ap_addr(local, param, p->length); + break; + case PRISM2_HOSTAPD_SET_GENERIC_ELEMENT: + ret = prism2_ioctl_set_generic_element(local, param, + p->length); + break; + case PRISM2_HOSTAPD_MLME: + ret = prism2_ioctl_mlme(local, param); + break; + case PRISM2_HOSTAPD_SCAN_REQ: + ret = prism2_ioctl_scan_req(local, param); + break; + default: + ret = prism2_hostapd(local->ap, param); + ap_ioctl = 1; + break; + } + + if (ret == 1 || !ap_ioctl) { + if (copy_to_user(p->pointer, param, p->length)) { + ret = -EFAULT; + goto out; + } else if (ap_ioctl) + ret = 0; + } + + out: + if (param != NULL) + kfree(param); + + return ret; +} + + +static void prism2_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + strncpy(info->driver, "hostap", sizeof(info->driver) - 1); + strncpy(info->version, PRISM2_VERSION, + sizeof(info->version) - 1); + snprintf(info->fw_version, sizeof(info->fw_version) - 1, + "%d.%d.%d", (local->sta_fw_ver >> 16) & 0xff, + (local->sta_fw_ver >> 8) & 0xff, + local->sta_fw_ver & 0xff); +} + +static struct ethtool_ops prism2_ethtool_ops = { + .get_drvinfo = prism2_get_drvinfo +}; + + +/* Structures to export the Wireless Handlers */ + +static const iw_handler prism2_handler[] = +{ + (iw_handler) NULL, /* SIOCSIWCOMMIT */ + (iw_handler) prism2_get_name, /* SIOCGIWNAME */ + (iw_handler) NULL, /* SIOCSIWNWID */ + (iw_handler) NULL, /* SIOCGIWNWID */ + (iw_handler) prism2_ioctl_siwfreq, /* SIOCSIWFREQ */ + (iw_handler) prism2_ioctl_giwfreq, /* SIOCGIWFREQ */ + (iw_handler) prism2_ioctl_siwmode, /* SIOCSIWMODE */ + (iw_handler) prism2_ioctl_giwmode, /* SIOCGIWMODE */ + (iw_handler) prism2_ioctl_siwsens, /* SIOCSIWSENS */ + (iw_handler) prism2_ioctl_giwsens, /* SIOCGIWSENS */ + (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */ + (iw_handler) prism2_ioctl_giwrange, /* SIOCGIWRANGE */ + (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */ + (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */ + (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */ + (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */ + iw_handler_set_spy, /* SIOCSIWSPY */ + iw_handler_get_spy, /* SIOCGIWSPY */ + iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ + iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ + (iw_handler) prism2_ioctl_siwap, /* SIOCSIWAP */ + (iw_handler) prism2_ioctl_giwap, /* SIOCGIWAP */ + (iw_handler) prism2_ioctl_siwmlme, /* SIOCSIWMLME */ + (iw_handler) prism2_ioctl_giwaplist, /* SIOCGIWAPLIST */ + (iw_handler) prism2_ioctl_siwscan, /* SIOCSIWSCAN */ + (iw_handler) prism2_ioctl_giwscan, /* SIOCGIWSCAN */ + (iw_handler) prism2_ioctl_siwessid, /* SIOCSIWESSID */ + (iw_handler) prism2_ioctl_giwessid, /* SIOCGIWESSID */ + (iw_handler) prism2_ioctl_siwnickn, /* SIOCSIWNICKN */ + (iw_handler) prism2_ioctl_giwnickn, /* SIOCGIWNICKN */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) prism2_ioctl_siwrate, /* SIOCSIWRATE */ + (iw_handler) prism2_ioctl_giwrate, /* SIOCGIWRATE */ + (iw_handler) prism2_ioctl_siwrts, /* SIOCSIWRTS */ + (iw_handler) prism2_ioctl_giwrts, /* SIOCGIWRTS */ + (iw_handler) prism2_ioctl_siwfrag, /* SIOCSIWFRAG */ + (iw_handler) prism2_ioctl_giwfrag, /* SIOCGIWFRAG */ + (iw_handler) prism2_ioctl_siwtxpow, /* SIOCSIWTXPOW */ + (iw_handler) prism2_ioctl_giwtxpow, /* SIOCGIWTXPOW */ + (iw_handler) prism2_ioctl_siwretry, /* SIOCSIWRETRY */ + (iw_handler) prism2_ioctl_giwretry, /* SIOCGIWRETRY */ + (iw_handler) prism2_ioctl_siwencode, /* SIOCSIWENCODE */ + (iw_handler) prism2_ioctl_giwencode, /* SIOCGIWENCODE */ + (iw_handler) prism2_ioctl_siwpower, /* SIOCSIWPOWER */ + (iw_handler) prism2_ioctl_giwpower, /* SIOCGIWPOWER */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) prism2_ioctl_siwgenie, /* SIOCSIWGENIE */ + (iw_handler) prism2_ioctl_giwgenie, /* SIOCGIWGENIE */ + (iw_handler) prism2_ioctl_siwauth, /* SIOCSIWAUTH */ + (iw_handler) prism2_ioctl_giwauth, /* SIOCGIWAUTH */ + (iw_handler) prism2_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */ + (iw_handler) prism2_ioctl_giwencodeext, /* SIOCGIWENCODEEXT */ + (iw_handler) NULL, /* SIOCSIWPMKSA */ + (iw_handler) NULL, /* -- hole -- */ +}; + +static const iw_handler prism2_private_handler[] = +{ /* SIOCIWFIRSTPRIV + */ + (iw_handler) prism2_ioctl_priv_prism2_param, /* 0 */ + (iw_handler) prism2_ioctl_priv_get_prism2_param, /* 1 */ + (iw_handler) prism2_ioctl_priv_writemif, /* 2 */ + (iw_handler) prism2_ioctl_priv_readmif, /* 3 */ +}; + +static const struct iw_handler_def hostap_iw_handler_def = +{ + .num_standard = sizeof(prism2_handler) / sizeof(iw_handler), + .num_private = sizeof(prism2_private_handler) / sizeof(iw_handler), + .num_private_args = sizeof(prism2_priv) / sizeof(struct iw_priv_args), + .standard = (iw_handler *) prism2_handler, + .private = (iw_handler *) prism2_private_handler, + .private_args = (struct iw_priv_args *) prism2_priv, + .get_wireless_stats = hostap_get_wireless_stats, +}; + + +int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct iwreq *wrq = (struct iwreq *) ifr; + struct hostap_interface *iface; + local_info_t *local; + int ret = 0; + + iface = netdev_priv(dev); + local = iface->local; + + switch (cmd) { + /* Private ioctls (iwpriv) that have not yet been converted + * into new wireless extensions API */ + + case PRISM2_IOCTL_INQUIRE: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_inquire(dev, (int *) wrq->u.name); + break; + + case PRISM2_IOCTL_MONITOR: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_monitor(dev, (int *) wrq->u.name); + break; + + case PRISM2_IOCTL_RESET: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_reset(dev, (int *) wrq->u.name); + break; + + case PRISM2_IOCTL_WDS_ADD: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_wds_add(local, wrq->u.ap_addr.sa_data, 1); + break; + + case PRISM2_IOCTL_WDS_DEL: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_wds_del(local, wrq->u.ap_addr.sa_data, 1, 0); + break; + + case PRISM2_IOCTL_SET_RID_WORD: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_set_rid_word(dev, + (int *) wrq->u.name); + break; + +#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT + case PRISM2_IOCTL_MACCMD: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = ap_mac_cmd_ioctl(local, (int *) wrq->u.name); + break; + + case PRISM2_IOCTL_ADDMAC: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = ap_control_add_mac(&local->ap->mac_restrictions, + wrq->u.ap_addr.sa_data); + break; + case PRISM2_IOCTL_DELMAC: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = ap_control_del_mac(&local->ap->mac_restrictions, + wrq->u.ap_addr.sa_data); + break; + case PRISM2_IOCTL_KICKMAC: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = ap_control_kick_mac(local->ap, local->dev, + wrq->u.ap_addr.sa_data); + break; +#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ + + + /* Private ioctls that are not used with iwpriv; + * in SIOCDEVPRIVATE range */ + +#ifdef PRISM2_DOWNLOAD_SUPPORT + case PRISM2_IOCTL_DOWNLOAD: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_download(local, &wrq->u.data); + break; +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + + case PRISM2_IOCTL_HOSTAPD: + if (!capable(CAP_NET_ADMIN)) ret = -EPERM; + else ret = prism2_ioctl_priv_hostapd(local, &wrq->u.data); + break; + + default: + ret = -EOPNOTSUPP; + break; + } + + return ret; +} diff --git a/drivers/net/wireless/hostap/hostap_pci.c b/drivers/net/wireless/hostap/hostap_pci.c new file mode 100644 index 0000000..3a20898 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_pci.c @@ -0,0 +1,453 @@ +#define PRISM2_PCI + +/* Host AP driver's support for Intersil Prism2.5 PCI cards is based on + * driver patches from Reyk Floeter and + * Andy Warner */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "hostap_wlan.h" + + +static char *version = PRISM2_VERSION " (Jouni Malinen )"; +static char *dev_info = "hostap_pci"; + + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Support for Intersil Prism2.5-based 802.11 wireless LAN " + "PCI cards."); +MODULE_SUPPORTED_DEVICE("Intersil Prism2.5-based WLAN PCI cards"); +MODULE_LICENSE("GPL"); + + +/* FIX: do we need mb/wmb/rmb with memory operations? */ + + +static struct pci_device_id prism2_pci_id_table[] __devinitdata = { + /* Intersil Prism3 ISL3872 11Mb/s WLAN Controller */ + { 0x1260, 0x3872, PCI_ANY_ID, PCI_ANY_ID }, + /* Intersil Prism2.5 ISL3874 11Mb/s WLAN Controller */ + { 0x1260, 0x3873, PCI_ANY_ID, PCI_ANY_ID }, + /* Samsung MagicLAN SWL-2210P */ + { 0x167d, 0xa000, PCI_ANY_ID, PCI_ANY_ID }, + { 0 } +}; + + +#ifdef PRISM2_IO_DEBUG + +static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v); + writeb(v, local->mem_start + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u8 hfa384x_inb_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u8 v; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + v = readb(local->mem_start + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v); + writew(v, local->mem_start + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u16 hfa384x_inw_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u16 v; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + v = readw(local->mem_start + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v)) +#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a)) +#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v)) +#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a)) +#define HFA384X_OUTW_DATA(v,a) hfa384x_outw_debug(dev, (a), cpu_to_le16((v))) +#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw_debug(dev, (a))) + +#else /* PRISM2_IO_DEBUG */ + +static inline void hfa384x_outb(struct net_device *dev, int a, u8 v) +{ + struct hostap_interface *iface; + local_info_t *local; + iface = netdev_priv(dev); + local = iface->local; + writeb(v, local->mem_start + a); +} + +static inline u8 hfa384x_inb(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + iface = netdev_priv(dev); + local = iface->local; + return readb(local->mem_start + a); +} + +static inline void hfa384x_outw(struct net_device *dev, int a, u16 v) +{ + struct hostap_interface *iface; + local_info_t *local; + iface = netdev_priv(dev); + local = iface->local; + writew(v, local->mem_start + a); +} + +static inline u16 hfa384x_inw(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + iface = netdev_priv(dev); + local = iface->local; + return readw(local->mem_start + a); +} + +#define HFA384X_OUTB(v,a) hfa384x_outb(dev, (a), (v)) +#define HFA384X_INB(a) hfa384x_inb(dev, (a)) +#define HFA384X_OUTW(v,a) hfa384x_outw(dev, (a), (v)) +#define HFA384X_INW(a) hfa384x_inw(dev, (a)) +#define HFA384X_OUTW_DATA(v,a) hfa384x_outw(dev, (a), cpu_to_le16((v))) +#define HFA384X_INW_DATA(a) (u16) le16_to_cpu(hfa384x_inw(dev, (a))) + +#endif /* PRISM2_IO_DEBUG */ + + +static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf, + int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + for ( ; len > 1; len -= 2) + *pos++ = HFA384X_INW_DATA(d_off); + + if (len & 1) + *((char *) pos) = HFA384X_INB(d_off); + + return 0; +} + + +static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + for ( ; len > 1; len -= 2) + HFA384X_OUTW_DATA(*pos++, d_off); + + if (len & 1) + HFA384X_OUTB(*((char *) pos), d_off); + + return 0; +} + + +/* FIX: This might change at some point.. */ +#include "hostap_hw.c" + +static void prism2_pci_cor_sreset(local_info_t *local) +{ + struct net_device *dev = local->dev; + u16 reg; + + reg = HFA384X_INB(HFA384X_PCICOR_OFF); + printk(KERN_DEBUG "%s: Original COR value: 0x%0x\n", dev->name, reg); + + /* linux-wlan-ng uses extremely long hold and settle times for + * COR sreset. A comment in the driver code mentions that the long + * delays appear to be necessary. However, at least IBM 22P6901 seems + * to work fine with shorter delays. + * + * Longer delays can be configured by uncommenting following line: */ +/* #define PRISM2_PCI_USE_LONG_DELAYS */ + +#ifdef PRISM2_PCI_USE_LONG_DELAYS + int i; + + HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF); + mdelay(250); + + HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF); + mdelay(500); + + /* Wait for f/w to complete initialization (CMD:BUSY == 0) */ + i = 2000000 / 10; + while ((HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) && --i) + udelay(10); + +#else /* PRISM2_PCI_USE_LONG_DELAYS */ + + HFA384X_OUTW(reg | 0x0080, HFA384X_PCICOR_OFF); + mdelay(2); + HFA384X_OUTW(reg & ~0x0080, HFA384X_PCICOR_OFF); + mdelay(2); + +#endif /* PRISM2_PCI_USE_LONG_DELAYS */ + + if (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY) { + printk(KERN_DEBUG "%s: COR sreset timeout\n", dev->name); + } +} + + +static void prism2_pci_genesis_reset(local_info_t *local, int hcr) +{ + struct net_device *dev = local->dev; + + HFA384X_OUTW(0x00C5, HFA384X_PCICOR_OFF); + mdelay(10); + HFA384X_OUTW(hcr, HFA384X_PCIHCR_OFF); + mdelay(10); + HFA384X_OUTW(0x0045, HFA384X_PCICOR_OFF); + mdelay(10); +} + + +static struct prism2_helper_functions prism2_pci_funcs = +{ + .card_present = NULL, + .cor_sreset = prism2_pci_cor_sreset, + .dev_open = NULL, + .dev_close = NULL, + .genesis_reset = prism2_pci_genesis_reset, + .hw_type = HOSTAP_HW_PCI, +}; + + +static int prism2_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + unsigned long phymem; + void __iomem *mem = NULL; + local_info_t *local = NULL; + struct net_device *dev = NULL; + static int cards_found /* = 0 */; + int irq_registered = 0; + struct hostap_interface *iface; + + if (pci_enable_device(pdev)) + return -EIO; + + phymem = pci_resource_start(pdev, 0); + + if (!request_mem_region(phymem, pci_resource_len(pdev, 0), "Prism2")) { + printk(KERN_ERR "prism2: Cannot reserve PCI memory region\n"); + goto err_out_disable; + } + + mem = ioremap(phymem, pci_resource_len(pdev, 0)); + if (mem == NULL) { + printk(KERN_ERR "prism2: Cannot remap PCI memory region\n") ; + goto fail; + } + +#ifdef PRISM2_BUS_MASTER + pci_set_master(pdev); +#endif /* PRISM2_BUS_MASTER */ + + dev = prism2_init_local_data(&prism2_pci_funcs, cards_found); + if (dev == NULL) + goto fail; + iface = netdev_priv(dev); + local = iface->local; + cards_found++; + + dev->irq = pdev->irq; + local->mem_start = mem; + + prism2_pci_cor_sreset(local); + + pci_set_drvdata(pdev, dev); + + if (request_irq(dev->irq, prism2_interrupt, SA_SHIRQ, dev->name, + dev)) { + printk(KERN_WARNING "%s: request_irq failed\n", dev->name); + goto fail; + } else + irq_registered = 1; + + if (!local->pri_only && prism2_hw_config(dev, 1)) { + printk(KERN_DEBUG "%s: hardware initialization failed\n", + dev_info); + goto fail; + } + + printk(KERN_INFO "%s: Intersil Prism2.5 PCI: " + "mem=0x%lx, irq=%d\n", dev->name, phymem, dev->irq); + + return hostap_hw_ready(dev); + + fail: + if (irq_registered && dev) + free_irq(dev->irq, dev); + + if (mem) + iounmap(mem); + + release_mem_region(phymem, pci_resource_len(pdev, 0)); + + err_out_disable: + pci_disable_device(pdev); + prism2_free_local_data(dev); + + return -ENODEV; +} + + +static void prism2_pci_remove(struct pci_dev *pdev) +{ + struct net_device *dev; + struct hostap_interface *iface; + void __iomem *mem_start; + + dev = pci_get_drvdata(pdev); + iface = netdev_priv(dev); + + /* Reset the hardware, and ensure interrupts are disabled. */ + prism2_pci_cor_sreset(iface->local); + hfa384x_disable_interrupts(dev); + + if (dev->irq) + free_irq(dev->irq, dev); + + mem_start = iface->local->mem_start; + prism2_free_local_data(dev); + + iounmap(mem_start); + + release_mem_region(pci_resource_start(pdev, 0), + pci_resource_len(pdev, 0)); + pci_disable_device(pdev); +} + + +#ifdef CONFIG_PM +static int prism2_pci_suspend(struct pci_dev *pdev, u32 state) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + if (netif_running(dev)) { + netif_stop_queue(dev); + netif_device_detach(dev); + } + prism2_suspend(dev); + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, 3); + + return 0; +} + +static int prism2_pci_resume(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + pci_enable_device(pdev); + pci_restore_state(pdev); + prism2_hw_config(dev, 0); + if (netif_running(dev)) { + netif_device_attach(dev); + netif_start_queue(dev); + } + + return 0; +} +#endif /* CONFIG_PM */ + + +MODULE_DEVICE_TABLE(pci, prism2_pci_id_table); + +static struct pci_driver prism2_pci_drv_id = { + .name = "prism2_pci", + .id_table = prism2_pci_id_table, + .probe = prism2_pci_probe, + .remove = prism2_pci_remove, +#ifdef CONFIG_PM + .suspend = prism2_pci_suspend, + .resume = prism2_pci_resume, +#endif /* CONFIG_PM */ + /* Linux 2.4.6 added save_state and enable_wake that are not used here + */ +}; + + +static int __init init_prism2_pci(void) +{ + printk(KERN_INFO "%s: %s\n", dev_info, version); + + return pci_register_driver(&prism2_pci_drv_id); +} + + +static void __exit exit_prism2_pci(void) +{ + pci_unregister_driver(&prism2_pci_drv_id); + printk(KERN_INFO "%s: Driver unloaded\n", dev_info); +} + + +module_init(init_prism2_pci); +module_exit(exit_prism2_pci); diff --git a/drivers/net/wireless/hostap/hostap_plx.c b/drivers/net/wireless/hostap/hostap_plx.c new file mode 100644 index 0000000..ec33501 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_plx.c @@ -0,0 +1,620 @@ +#define PRISM2_PLX + +/* Host AP driver's support for PC Cards on PCI adapters using PLX9052 is + * based on: + * - Host AP driver patch from james@madingley.org + * - linux-wlan-ng driver, Copyright (C) AbsoluteValue Systems, Inc. + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "hostap_wlan.h" + + +static char *version = PRISM2_VERSION " (Jouni Malinen )"; +static char *dev_info = "hostap_plx"; + + +MODULE_AUTHOR("Jouni Malinen"); +MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN " + "cards (PLX)."); +MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PLX)"); +MODULE_LICENSE("GPL"); + + +static int ignore_cis; +module_param(ignore_cis, int, 0444); +MODULE_PARM_DESC(ignore_cis, "Do not verify manfid information in CIS"); + + +#define PLX_MIN_ATTR_LEN 512 /* at least 2 x 256 is needed for CIS */ +#define COR_SRESET 0x80 +#define COR_LEVLREQ 0x40 +#define COR_ENABLE_FUNC 0x01 +/* PCI Configuration Registers */ +#define PLX_PCIIPR 0x3d /* PCI Interrupt Pin */ +/* Local Configuration Registers */ +#define PLX_INTCSR 0x4c /* Interrupt Control/Status Register */ +#define PLX_INTCSR_PCI_INTEN BIT(6) /* PCI Interrupt Enable */ +#define PLX_CNTRL 0x50 +#define PLX_CNTRL_SERIAL_EEPROM_PRESENT BIT(28) + + +#define PLXDEV(vendor,dev,str) { vendor, dev, PCI_ANY_ID, PCI_ANY_ID } + +static struct pci_device_id prism2_plx_id_table[] __devinitdata = { + PLXDEV(0x10b7, 0x7770, "3Com AirConnect PCI 777A"), + PLXDEV(0x111a, 0x1023, "Siemens SpeedStream SS1023"), + PLXDEV(0x126c, 0x8030, "Nortel emobility"), + PLXDEV(0x1385, 0x4100, "Netgear MA301"), + PLXDEV(0x15e8, 0x0130, "National Datacomm NCP130 (PLX9052)"), + PLXDEV(0x15e8, 0x0131, "National Datacomm NCP130 (TMD7160)"), + PLXDEV(0x1638, 0x1100, "Eumitcom WL11000"), + PLXDEV(0x16ab, 0x1101, "Global Sun Tech GL24110P (?)"), + PLXDEV(0x16ab, 0x1102, "Linksys WPC11 with WDT11"), + PLXDEV(0x16ab, 0x1103, "Longshine 8031"), + PLXDEV(0x16ec, 0x3685, "US Robotics USR2415"), + PLXDEV(0xec80, 0xec00, "Belkin F5D6000"), + { 0 } +}; + + +/* Array of known Prism2/2.5 PC Card manufactured ids. If your card's manfid + * is not listed here, you will need to add it here to get the driver + * initialized. */ +static struct prism2_plx_manfid { + u16 manfid1, manfid2; +} prism2_plx_known_manfids[] = { + { 0x000b, 0x7110 } /* D-Link DWL-650 Rev. P1 */, + { 0x000b, 0x7300 } /* Philips 802.11b WLAN PCMCIA */, + { 0x0101, 0x0777 } /* 3Com AirConnect PCI 777A */, + { 0x0126, 0x8000 } /* Proxim RangeLAN */, + { 0x0138, 0x0002 } /* Compaq WL100 */, + { 0x0156, 0x0002 } /* Intersil Prism II Ref. Design (and others) */, + { 0x026f, 0x030b } /* Buffalo WLI-CF-S11G */, + { 0x0274, 0x1612 } /* Linksys WPC11 Ver 2.5 */, + { 0x0274, 0x1613 } /* Linksys WPC11 Ver 3 */, + { 0x028a, 0x0002 } /* D-Link DRC-650 */, + { 0x0250, 0x0002 } /* Samsung SWL2000-N */, + { 0xc250, 0x0002 } /* EMTAC A2424i */, + { 0xd601, 0x0002 } /* Z-Com XI300 */, + { 0xd601, 0x0005 } /* Zcomax XI-325H 200mW */, + { 0, 0} +}; + + +#ifdef PRISM2_IO_DEBUG + +static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v); + outb(v, dev->base_addr + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u8 hfa384x_inb_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u8 v; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + v = inb(dev->base_addr + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v); + outw(v, dev->base_addr + a); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline u16 hfa384x_inw_debug(struct net_device *dev, int a) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + u16 v; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + v = inw(dev->base_addr + a); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v); + spin_unlock_irqrestore(&local->lock, flags); + return v; +} + +static inline void hfa384x_outsw_debug(struct net_device *dev, int a, + u8 *buf, int wc) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc); + outsw(dev->base_addr + a, buf, wc); + spin_unlock_irqrestore(&local->lock, flags); +} + +static inline void hfa384x_insw_debug(struct net_device *dev, int a, + u8 *buf, int wc) +{ + struct hostap_interface *iface; + local_info_t *local; + unsigned long flags; + + iface = netdev_priv(dev); + local = iface->local; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc); + insw(dev->base_addr + a, buf, wc); + spin_unlock_irqrestore(&local->lock, flags); +} + +#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v)) +#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a)) +#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v)) +#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a)) +#define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc)) +#define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc)) + +#else /* PRISM2_IO_DEBUG */ + +#define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a)) +#define HFA384X_INB(a) inb(dev->base_addr + (a)) +#define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a)) +#define HFA384X_INW(a) inw(dev->base_addr + (a)) +#define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc) +#define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc) + +#endif /* PRISM2_IO_DEBUG */ + + +static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf, + int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + if (len / 2) + HFA384X_INSW(d_off, buf, len / 2); + pos += len / 2; + + if (len & 1) + *((char *) pos) = HFA384X_INB(d_off); + + return 0; +} + + +static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len) +{ + u16 d_off; + u16 *pos; + + d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF; + pos = (u16 *) buf; + + if (len / 2) + HFA384X_OUTSW(d_off, buf, len / 2); + pos += len / 2; + + if (len & 1) + HFA384X_OUTB(*((char *) pos), d_off); + + return 0; +} + + +/* FIX: This might change at some point.. */ +#include "hostap_hw.c" + + +static void prism2_plx_cor_sreset(local_info_t *local) +{ + unsigned char corsave; + + printk(KERN_DEBUG "%s: Doing reset via direct COR access.\n", + dev_info); + + /* Set sreset bit of COR and clear it after hold time */ + + if (local->attr_mem == NULL) { + /* TMD7160 - COR at card's first I/O addr */ + corsave = inb(local->cor_offset); + outb(corsave | COR_SRESET, local->cor_offset); + mdelay(2); + outb(corsave & ~COR_SRESET, local->cor_offset); + mdelay(2); + } else { + /* PLX9052 */ + corsave = readb(local->attr_mem + local->cor_offset); + writeb(corsave | COR_SRESET, + local->attr_mem + local->cor_offset); + mdelay(2); + writeb(corsave & ~COR_SRESET, + local->attr_mem + local->cor_offset); + mdelay(2); + } +} + + +static void prism2_plx_genesis_reset(local_info_t *local, int hcr) +{ + unsigned char corsave; + + if (local->attr_mem == NULL) { + /* TMD7160 - COR at card's first I/O addr */ + corsave = inb(local->cor_offset); + outb(corsave | COR_SRESET, local->cor_offset); + mdelay(10); + outb(hcr, local->cor_offset + 2); + mdelay(10); + outb(corsave & ~COR_SRESET, local->cor_offset); + mdelay(10); + } else { + /* PLX9052 */ + corsave = readb(local->attr_mem + local->cor_offset); + writeb(corsave | COR_SRESET, + local->attr_mem + local->cor_offset); + mdelay(10); + writeb(hcr, local->attr_mem + local->cor_offset + 2); + mdelay(10); + writeb(corsave & ~COR_SRESET, + local->attr_mem + local->cor_offset); + mdelay(10); + } +} + + +static struct prism2_helper_functions prism2_plx_funcs = +{ + .card_present = NULL, + .cor_sreset = prism2_plx_cor_sreset, + .dev_open = NULL, + .dev_close = NULL, + .genesis_reset = prism2_plx_genesis_reset, + .hw_type = HOSTAP_HW_PLX, +}; + + +static int prism2_plx_check_cis(void __iomem *attr_mem, int attr_len, + unsigned int *cor_offset, + unsigned int *cor_index) +{ +#define CISTPL_CONFIG 0x1A +#define CISTPL_MANFID 0x20 +#define CISTPL_END 0xFF +#define CIS_MAX_LEN 256 + u8 *cis; + int i, pos; + unsigned int rmsz, rasz, manfid1, manfid2; + struct prism2_plx_manfid *manfid; + + cis = kmalloc(CIS_MAX_LEN, GFP_KERNEL); + if (cis == NULL) + return -ENOMEM; + + /* read CIS; it is in even offsets in the beginning of attr_mem */ + for (i = 0; i < CIS_MAX_LEN; i++) + cis[i] = readb(attr_mem + 2 * i); + printk(KERN_DEBUG "%s: CIS: %02x %02x %02x %02x %02x %02x ...\n", + dev_info, cis[0], cis[1], cis[2], cis[3], cis[4], cis[5]); + + /* set reasonable defaults for Prism2 cards just in case CIS parsing + * fails */ + *cor_offset = 0x3e0; + *cor_index = 0x01; + manfid1 = manfid2 = 0; + + pos = 0; + while (pos < CIS_MAX_LEN - 1 && cis[pos] != CISTPL_END) { + if (pos + cis[pos + 1] >= CIS_MAX_LEN) + goto cis_error; + + switch (cis[pos]) { + case CISTPL_CONFIG: + if (cis[pos + 1] < 1) + goto cis_error; + rmsz = (cis[pos + 2] & 0x3c) >> 2; + rasz = cis[pos + 2] & 0x03; + if (4 + rasz + rmsz > cis[pos + 1]) + goto cis_error; + *cor_index = cis[pos + 3] & 0x3F; + *cor_offset = 0; + for (i = 0; i <= rasz; i++) + *cor_offset += cis[pos + 4 + i] << (8 * i); + printk(KERN_DEBUG "%s: cor_index=0x%x " + "cor_offset=0x%x\n", dev_info, + *cor_index, *cor_offset); + if (*cor_offset > attr_len) { + printk(KERN_ERR "%s: COR offset not within " + "attr_mem\n", dev_info); + kfree(cis); + return -1; + } + break; + + case CISTPL_MANFID: + if (cis[pos + 1] < 4) + goto cis_error; + manfid1 = cis[pos + 2] + (cis[pos + 3] << 8); + manfid2 = cis[pos + 4] + (cis[pos + 5] << 8); + printk(KERN_DEBUG "%s: manfid=0x%04x, 0x%04x\n", + dev_info, manfid1, manfid2); + break; + } + + pos += cis[pos + 1] + 2; + } + + if (pos >= CIS_MAX_LEN || cis[pos] != CISTPL_END) + goto cis_error; + + for (manfid = prism2_plx_known_manfids; manfid->manfid1 != 0; manfid++) + if (manfid1 == manfid->manfid1 && manfid2 == manfid->manfid2) { + kfree(cis); + return 0; + } + + printk(KERN_INFO "%s: unknown manfid 0x%04x, 0x%04x - assuming this is" + " not supported card\n", dev_info, manfid1, manfid2); + goto fail; + + cis_error: + printk(KERN_WARNING "%s: invalid CIS data\n", dev_info); + + fail: + kfree(cis); + if (ignore_cis) { + printk(KERN_INFO "%s: ignore_cis parameter set - ignoring " + "errors during CIS verification\n", dev_info); + return 0; + } + return -1; +} + + +static int prism2_plx_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + unsigned int pccard_ioaddr, plx_ioaddr; + unsigned long pccard_attr_mem; + unsigned int pccard_attr_len; + void __iomem *attr_mem = NULL; + unsigned int cor_offset, cor_index; + u32 reg; + local_info_t *local = NULL; + struct net_device *dev = NULL; + struct hostap_interface *iface; + static int cards_found /* = 0 */; + int irq_registered = 0; + int tmd7160; + + if (pci_enable_device(pdev)) + return -EIO; + + /* National Datacomm NCP130 based on TMD7160, not PLX9052. */ + tmd7160 = (pdev->vendor == 0x15e8) && (pdev->device == 0x0131); + + plx_ioaddr = pci_resource_start(pdev, 1); + pccard_ioaddr = pci_resource_start(pdev, tmd7160 ? 2 : 3); + + if (tmd7160) { + /* TMD7160 */ + attr_mem = NULL; /* no access to PC Card attribute memory */ + + printk(KERN_INFO "TMD7160 PCI/PCMCIA adapter: io=0x%x, " + "irq=%d, pccard_io=0x%x\n", + plx_ioaddr, pdev->irq, pccard_ioaddr); + + cor_offset = plx_ioaddr; + cor_index = 0x04; + + outb(cor_index | COR_LEVLREQ | COR_ENABLE_FUNC, plx_ioaddr); + mdelay(1); + reg = inb(plx_ioaddr); + if (reg != (cor_index | COR_LEVLREQ | COR_ENABLE_FUNC)) { + printk(KERN_ERR "%s: Error setting COR (expected=" + "0x%02x, was=0x%02x)\n", dev_info, + cor_index | COR_LEVLREQ | COR_ENABLE_FUNC, reg); + goto fail; + } + } else { + /* PLX9052 */ + pccard_attr_mem = pci_resource_start(pdev, 2); + pccard_attr_len = pci_resource_len(pdev, 2); + if (pccard_attr_len < PLX_MIN_ATTR_LEN) + goto fail; + + + attr_mem = ioremap(pccard_attr_mem, pccard_attr_len); + if (attr_mem == NULL) { + printk(KERN_ERR "%s: cannot remap attr_mem\n", + dev_info); + goto fail; + } + + printk(KERN_INFO "PLX9052 PCI/PCMCIA adapter: " + "mem=0x%lx, plx_io=0x%x, irq=%d, pccard_io=0x%x\n", + pccard_attr_mem, plx_ioaddr, pdev->irq, pccard_ioaddr); + + if (prism2_plx_check_cis(attr_mem, pccard_attr_len, + &cor_offset, &cor_index)) { + printk(KERN_INFO "Unknown PC Card CIS - not a " + "Prism2/2.5 card?\n"); + goto fail; + } + + printk(KERN_DEBUG "Prism2/2.5 PC Card detected in PLX9052 " + "adapter\n"); + + /* Write COR to enable PC Card */ + writeb(cor_index | COR_LEVLREQ | COR_ENABLE_FUNC, + attr_mem + cor_offset); + + /* Enable PCI interrupts if they are not already enabled */ + reg = inl(plx_ioaddr + PLX_INTCSR); + printk(KERN_DEBUG "PLX_INTCSR=0x%x\n", reg); + if (!(reg & PLX_INTCSR_PCI_INTEN)) { + outl(reg | PLX_INTCSR_PCI_INTEN, + plx_ioaddr + PLX_INTCSR); + if (!(inl(plx_ioaddr + PLX_INTCSR) & + PLX_INTCSR_PCI_INTEN)) { + printk(KERN_WARNING "%s: Could not enable " + "Local Interrupts\n", dev_info); + goto fail; + } + } + + reg = inl(plx_ioaddr + PLX_CNTRL); + printk(KERN_DEBUG "PLX_CNTRL=0x%x (Serial EEPROM " + "present=%d)\n", + reg, (reg & PLX_CNTRL_SERIAL_EEPROM_PRESENT) != 0); + /* should set PLX_PCIIPR to 0x01 (INTA#) if Serial EEPROM is + * not present; but are there really such cards in use(?) */ + } + + dev = prism2_init_local_data(&prism2_plx_funcs, cards_found); + if (dev == NULL) + goto fail; + iface = netdev_priv(dev); + local = iface->local; + cards_found++; + + dev->irq = pdev->irq; + dev->base_addr = pccard_ioaddr; + local->attr_mem = attr_mem; + local->cor_offset = cor_offset; + + pci_set_drvdata(pdev, dev); + + if (request_irq(dev->irq, prism2_interrupt, SA_SHIRQ, dev->name, + dev)) { + printk(KERN_WARNING "%s: request_irq failed\n", dev->name); + goto fail; + } else + irq_registered = 1; + + if (prism2_hw_config(dev, 1)) { + printk(KERN_DEBUG "%s: hardware initialization failed\n", + dev_info); + goto fail; + } + + return hostap_hw_ready(dev); + + fail: + prism2_free_local_data(dev); + + if (irq_registered && dev) + free_irq(dev->irq, dev); + + if (attr_mem) + iounmap(attr_mem); + + pci_disable_device(pdev); + + return -ENODEV; +} + + +static void prism2_plx_remove(struct pci_dev *pdev) +{ + struct net_device *dev; + struct hostap_interface *iface; + + dev = pci_get_drvdata(pdev); + iface = netdev_priv(dev); + + /* Reset the hardware, and ensure interrupts are disabled. */ + prism2_plx_cor_sreset(iface->local); + hfa384x_disable_interrupts(dev); + + if (iface->local->attr_mem) + iounmap(iface->local->attr_mem); + if (dev->irq) + free_irq(dev->irq, dev); + + prism2_free_local_data(dev); + pci_disable_device(pdev); +} + + +MODULE_DEVICE_TABLE(pci, prism2_plx_id_table); + +static struct pci_driver prism2_plx_drv_id = { + .name = "prism2_plx", + .id_table = prism2_plx_id_table, + .probe = prism2_plx_probe, + .remove = prism2_plx_remove, + .suspend = NULL, + .resume = NULL, + .enable_wake = NULL +}; + + +static int __init init_prism2_plx(void) +{ + printk(KERN_INFO "%s: %s\n", dev_info, version); + + return pci_register_driver(&prism2_plx_drv_id); +} + + +static void __exit exit_prism2_plx(void) +{ + pci_unregister_driver(&prism2_plx_drv_id); + printk(KERN_INFO "%s: Driver unloaded\n", dev_info); +} + + +module_init(init_prism2_plx); +module_exit(exit_prism2_plx); diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c new file mode 100644 index 0000000..81b321b --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_proc.c @@ -0,0 +1,466 @@ +/* /proc routines for Host AP driver */ + +#define PROC_LIMIT (PAGE_SIZE - 80) + + +#ifndef PRISM2_NO_PROCFS_DEBUG +static int prism2_debug_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + int i; + + if (off != 0) { + *eof = 1; + return 0; + } + + p += sprintf(p, "next_txfid=%d next_alloc=%d\n", + local->next_txfid, local->next_alloc); + for (i = 0; i < PRISM2_TXFID_COUNT; i++) + p += sprintf(p, "FID: tx=%04X intransmit=%04X\n", + local->txfid[i], local->intransmitfid[i]); + p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control); + p += sprintf(p, "beacon_int=%d\n", local->beacon_int); + p += sprintf(p, "dtim_period=%d\n", local->dtim_period); + p += sprintf(p, "wds_max_connections=%d\n", + local->wds_max_connections); + p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled); + p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck); + for (i = 0; i < WEP_KEYS; i++) { + if (local->crypt[i] && local->crypt[i]->ops) { + p += sprintf(p, "crypt[%d]=%s\n", + i, local->crypt[i]->ops->name); + } + } + p += sprintf(p, "pri_only=%d\n", local->pri_only); + p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI); + p += sprintf(p, "sram_type=%d\n", local->sram_type); + p += sprintf(p, "no_pri=%d\n", local->no_pri); + + return (p - page); +} +#endif /* PRISM2_NO_PROCFS_DEBUG */ + + +static int prism2_stats_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + struct comm_tallies_sums *sums = (struct comm_tallies_sums *) + &local->comm_tallies; + + if (off != 0) { + *eof = 1; + return 0; + } + + p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames); + p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames); + p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments); + p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets); + p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets); + p += sprintf(p, "TxDeferredTransmissions=%u\n", + sums->tx_deferred_transmissions); + p += sprintf(p, "TxSingleRetryFrames=%u\n", + sums->tx_single_retry_frames); + p += sprintf(p, "TxMultipleRetryFrames=%u\n", + sums->tx_multiple_retry_frames); + p += sprintf(p, "TxRetryLimitExceeded=%u\n", + sums->tx_retry_limit_exceeded); + p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards); + p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames); + p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames); + p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments); + p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets); + p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets); + p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors); + p += sprintf(p, "RxDiscardsNoBuffer=%u\n", + sums->rx_discards_no_buffer); + p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa); + p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n", + sums->rx_discards_wep_undecryptable); + p += sprintf(p, "RxMessageInMsgFragments=%u\n", + sums->rx_message_in_msg_fragments); + p += sprintf(p, "RxMessageInBadMsgFragments=%u\n", + sums->rx_message_in_bad_msg_fragments); + /* FIX: this may grow too long for one page(?) */ + + return (p - page); +} + + +static int prism2_wds_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + struct list_head *ptr; + struct hostap_interface *iface; + + if (off > PROC_LIMIT) { + *eof = 1; + return 0; + } + + read_lock_bh(&local->iface_lock); + list_for_each(ptr, &local->hostap_interfaces) { + iface = list_entry(ptr, struct hostap_interface, list); + if (iface->type != HOSTAP_INTERFACE_WDS) + continue; + p += sprintf(p, "%s\t" MACSTR "\n", + iface->dev->name, + MAC2STR(iface->u.wds.remote_addr)); + if ((p - page) > PROC_LIMIT) { + printk(KERN_DEBUG "%s: wds proc did not fit\n", + local->dev->name); + break; + } + } + read_unlock_bh(&local->iface_lock); + + if ((p - page) <= off) { + *eof = 1; + return 0; + } + + *start = page + off; + + return (p - page - off); +} + + +static int prism2_bss_list_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + struct list_head *ptr; + struct hostap_bss_info *bss; + int i; + + if (off > PROC_LIMIT) { + *eof = 1; + return 0; + } + + p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t" + "SSID(hex)\tWPA IE\n"); + spin_lock_bh(&local->lock); + list_for_each(ptr, &local->bss_list) { + bss = list_entry(ptr, struct hostap_bss_info, list); + p += sprintf(p, MACSTR "\t%lu\t%u\t0x%x\t", + MAC2STR(bss->bssid), bss->last_update, + bss->count, bss->capab_info); + for (i = 0; i < bss->ssid_len; i++) { + p += sprintf(p, "%c", + bss->ssid[i] >= 32 && bss->ssid[i] < 127 ? + bss->ssid[i] : '_'); + } + p += sprintf(p, "\t"); + for (i = 0; i < bss->ssid_len; i++) { + p += sprintf(p, "%02x", bss->ssid[i]); + } + p += sprintf(p, "\t"); + for (i = 0; i < bss->wpa_ie_len; i++) { + p += sprintf(p, "%02x", bss->wpa_ie[i]); + } + p += sprintf(p, "\n"); + if ((p - page) > PROC_LIMIT) { + printk(KERN_DEBUG "%s: BSS proc did not fit\n", + local->dev->name); + break; + } + } + spin_unlock_bh(&local->lock); + + if ((p - page) <= off) { + *eof = 1; + return 0; + } + + *start = page + off; + + return (p - page - off); +} + + +static int prism2_crypt_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + int i; + + if (off > PROC_LIMIT) { + *eof = 1; + return 0; + } + + p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx); + for (i = 0; i < WEP_KEYS; i++) { + if (local->crypt[i] && local->crypt[i]->ops && + local->crypt[i]->ops->print_stats) { + p = local->crypt[i]->ops->print_stats( + p, local->crypt[i]->priv); + } + } + + if ((p - page) <= off) { + *eof = 1; + return 0; + } + + *start = page + off; + + return (p - page - off); +} + + +static int prism2_pda_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + local_info_t *local = (local_info_t *) data; + + if (local->pda == NULL || off >= PRISM2_PDA_SIZE) { + *eof = 1; + return 0; + } + + if (off + count > PRISM2_PDA_SIZE) + count = PRISM2_PDA_SIZE - off; + + memcpy(page, local->pda + off, count); + return count; +} + + +static int prism2_aux_dump_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + local_info_t *local = (local_info_t *) data; + + if (local->func->read_aux == NULL) { + *eof = 1; + return 0; + } + + if (local->func->read_aux(local->dev, off, count, page)) { + *eof = 1; + return 0; + } + *start = page; + + return count; +} + + +#ifdef PRISM2_IO_DEBUG +static int prism2_io_debug_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + local_info_t *local = (local_info_t *) data; + int head = local->io_debug_head; + int start_bytes, left, copy, copied; + + if (off + count > PRISM2_IO_DEBUG_SIZE * 4) { + *eof = 1; + if (off >= PRISM2_IO_DEBUG_SIZE * 4) + return 0; + count = PRISM2_IO_DEBUG_SIZE * 4 - off; + } + + copied = 0; + start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4; + left = count; + + if (off < start_bytes) { + copy = start_bytes - off; + if (copy > count) + copy = count; + memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy); + left -= copy; + if (left > 0) + memcpy(&page[copy], local->io_debug, left); + } else { + memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes), + left); + } + + *start = page; + + return count; +} +#endif /* PRISM2_IO_DEBUG */ + + +#ifndef PRISM2_NO_STATION_MODES +static int prism2_scan_results_proc_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + char *p = page; + local_info_t *local = (local_info_t *) data; + int entries, entry, i, len, total = 0, hostscan; + struct hfa384x_scan_result *scanres; + struct hfa384x_hostscan_result *hscanres; + u8 *pos; + + p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates " + "SSID\n"); + + spin_lock_bh(&local->lock); + hostscan = local->last_scan_type == PRISM2_HOSTSCAN; + entries = hostscan ? local->last_hostscan_results_count : + local->last_scan_results_count; + for (entry = 0; entry < entries; entry++) { + hscanres = &local->last_hostscan_results[entry]; + scanres = &local->last_scan_results[entry]; + + if (total + (p - page) <= off) { + total += p - page; + p = page; + } + if (total + (p - page) > off + count) + break; + if ((p - page) > (PAGE_SIZE - 200)) + break; + + if (hostscan) { + p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR " %d ", + le16_to_cpu(hscanres->chid), + (s16) le16_to_cpu(hscanres->anl), + (s16) le16_to_cpu(hscanres->sl), + le16_to_cpu(hscanres->beacon_interval), + le16_to_cpu(hscanres->capability), + le16_to_cpu(hscanres->rate), + MAC2STR(hscanres->bssid), + le16_to_cpu(hscanres->atim)); + } else { + p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR + " N/A ", + le16_to_cpu(scanres->chid), + (s16) le16_to_cpu(scanres->anl), + (s16) le16_to_cpu(scanres->sl), + le16_to_cpu(scanres->beacon_interval), + le16_to_cpu(scanres->capability), + le16_to_cpu(scanres->rate), + MAC2STR(scanres->bssid)); + } + + pos = hostscan ? hscanres->sup_rates : scanres->sup_rates; + for (i = 0; i < sizeof(hscanres->sup_rates); i++) { + if (pos[i] == 0) + break; + p += sprintf(p, "<%02x>", pos[i]); + } + p += sprintf(p, " "); + + pos = hostscan ? hscanres->ssid : scanres->ssid; + len = le16_to_cpu(hostscan ? hscanres->ssid_len : + scanres->ssid_len); + if (len > 32) + len = 32; + for (i = 0; i < len; i++) { + unsigned char c = pos[i]; + if (c >= 32 && c < 127) + p += sprintf(p, "%c", c); + else + p += sprintf(p, "<%02x>", c); + } + p += sprintf(p, "\n"); + } + spin_unlock_bh(&local->lock); + + total += (p - page); + if (total >= off + count) + *eof = 1; + + if (total < off) { + *eof = 1; + return 0; + } + + len = total - off; + if (len > (p - page)) + len = p - page; + *start = p - len; + if (len > count) + len = count; + + return len; +} +#endif /* PRISM2_NO_STATION_MODES */ + + +void hostap_init_proc(local_info_t *local) +{ + local->proc = NULL; + + if (hostap_proc == NULL) { + printk(KERN_WARNING "%s: hostap proc directory not created\n", + local->dev->name); + return; + } + + local->proc = proc_mkdir(local->ddev->name, hostap_proc); + if (local->proc == NULL) { + printk(KERN_INFO "/proc/net/hostap/%s creation failed\n", + local->ddev->name); + return; + } + +#ifndef PRISM2_NO_PROCFS_DEBUG + create_proc_read_entry("debug", 0, local->proc, + prism2_debug_proc_read, local); +#endif /* PRISM2_NO_PROCFS_DEBUG */ + create_proc_read_entry("stats", 0, local->proc, + prism2_stats_proc_read, local); + create_proc_read_entry("wds", 0, local->proc, + prism2_wds_proc_read, local); + create_proc_read_entry("pda", 0, local->proc, + prism2_pda_proc_read, local); + create_proc_read_entry("aux_dump", 0, local->proc, + prism2_aux_dump_proc_read, local); + create_proc_read_entry("bss_list", 0, local->proc, + prism2_bss_list_proc_read, local); + create_proc_read_entry("crypt", 0, local->proc, + prism2_crypt_proc_read, local); +#ifdef PRISM2_IO_DEBUG + create_proc_read_entry("io_debug", 0, local->proc, + prism2_io_debug_proc_read, local); +#endif /* PRISM2_IO_DEBUG */ +#ifndef PRISM2_NO_STATION_MODES + create_proc_read_entry("scan_results", 0, local->proc, + prism2_scan_results_proc_read, local); +#endif /* PRISM2_NO_STATION_MODES */ +} + + +void hostap_remove_proc(local_info_t *local) +{ + if (local->proc != NULL) { +#ifndef PRISM2_NO_STATION_MODES + remove_proc_entry("scan_results", local->proc); +#endif /* PRISM2_NO_STATION_MODES */ +#ifdef PRISM2_IO_DEBUG + remove_proc_entry("io_debug", local->proc); +#endif /* PRISM2_IO_DEBUG */ + remove_proc_entry("pda", local->proc); + remove_proc_entry("aux_dump", local->proc); + remove_proc_entry("wds", local->proc); + remove_proc_entry("stats", local->proc); + remove_proc_entry("bss_list", local->proc); + remove_proc_entry("crypt", local->proc); +#ifndef PRISM2_NO_PROCFS_DEBUG + remove_proc_entry("debug", local->proc); +#endif /* PRISM2_NO_PROCFS_DEBUG */ + if (hostap_proc != NULL) + remove_proc_entry(local->proc->name, hostap_proc); + } +} + + +EXPORT_SYMBOL(hostap_init_proc); +EXPORT_SYMBOL(hostap_remove_proc); diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h new file mode 100644 index 0000000..4b32e2e --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_wlan.h @@ -0,0 +1,1075 @@ +#ifndef HOSTAP_WLAN_H +#define HOSTAP_WLAN_H + +#include "hostap_config.h" +#include "hostap_crypt.h" +#include "hostap_common.h" + +#define MAX_PARM_DEVICES 8 +#define PARM_MIN_MAX "1-" __MODULE_STRING(MAX_PARM_DEVICES) +#define DEF_INTS -1, -1, -1, -1, -1, -1, -1 +#define GET_INT_PARM(var,idx) var[var[idx] < 0 ? 0 : idx] + + +/* Specific skb->protocol value that indicates that the packet already contains + * txdesc header. + * FIX: This might need own value that would be allocated especially for Prism2 + * txdesc; ETH_P_CONTROL is commented as "Card specific control frames". + * However, these skb's should have only minimal path in the kernel side since + * prism2_send_mgmt() sends these with dev_queue_xmit() to prism2_tx(). */ +#define ETH_P_HOSTAP ETH_P_CONTROL + +#ifndef ARPHRD_IEEE80211 +#define ARPHRD_IEEE80211 801 +#endif +#ifndef ARPHRD_IEEE80211_PRISM +#define ARPHRD_IEEE80211_PRISM 802 +#endif + +/* ARPHRD_IEEE80211_PRISM uses a bloated version of Prism2 RX frame header + * (from linux-wlan-ng) */ +struct linux_wlan_ng_val { + u32 did; + u16 status, len; + u32 data; +} __attribute__ ((packed)); + +struct linux_wlan_ng_prism_hdr { + u32 msgcode, msglen; + char devname[16]; + struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal, + noise, rate, istx, frmlen; +} __attribute__ ((packed)); + +struct linux_wlan_ng_cap_hdr { + u32 version; + u32 length; + u64 mactime; + u64 hosttime; + u32 phytype; + u32 channel; + u32 datarate; + u32 antenna; + u32 priority; + u32 ssi_type; + s32 ssi_signal; + s32 ssi_noise; + u32 preamble; + u32 encoding; +} __attribute__ ((packed)); + +#define LWNG_CAP_DID_BASE (4 | (1 << 6)) /* section 4, group 1 */ +#define LWNG_CAPHDR_VERSION 0x80211001 + +struct hfa384x_rx_frame { + /* HFA384X RX frame descriptor */ + u16 status; /* HFA384X_RX_STATUS_ flags */ + u32 time; /* timestamp, 1 microsecond resolution */ + u8 silence; /* 27 .. 154; seems to be 0 */ + u8 signal; /* 27 .. 154 */ + u8 rate; /* 10, 20, 55, or 110 */ + u8 rxflow; + u32 reserved; + + /* 802.11 */ + u16 frame_control; + u16 duration_id; + u8 addr1[6]; + u8 addr2[6]; + u8 addr3[6]; + u16 seq_ctrl; + u8 addr4[6]; + u16 data_len; + + /* 802.3 */ + u8 dst_addr[6]; + u8 src_addr[6]; + u16 len; + + /* followed by frame data; max 2304 bytes */ +} __attribute__ ((packed)); + + +struct hfa384x_tx_frame { + /* HFA384X TX frame descriptor */ + u16 status; /* HFA384X_TX_STATUS_ flags */ + u16 reserved1; + u16 reserved2; + u32 sw_support; + u8 retry_count; /* not yet implemented */ + u8 tx_rate; /* Host AP only; 0 = firmware, or 10, 20, 55, 110 */ + u16 tx_control; /* HFA384X_TX_CTRL_ flags */ + + /* 802.11 */ + u16 frame_control; /* parts not used */ + u16 duration_id; + u8 addr1[6]; + u8 addr2[6]; /* filled by firmware */ + u8 addr3[6]; + u16 seq_ctrl; /* filled by firmware */ + u8 addr4[6]; + u16 data_len; + + /* 802.3 */ + u8 dst_addr[6]; + u8 src_addr[6]; + u16 len; + + /* followed by frame data; max 2304 bytes */ +} __attribute__ ((packed)); + + +struct hfa384x_rid_hdr +{ + u16 len; + u16 rid; +} __attribute__ ((packed)); + + +/* Macro for converting signal levels (range 27 .. 154) to wireless ext + * dBm value with some accuracy */ +#define HFA384X_LEVEL_TO_dBm(v) 0x100 + (v) * 100 / 255 - 100 + +#define HFA384X_LEVEL_TO_dBm_sign(v) (v) * 100 / 255 - 100 + +struct hfa384x_scan_request { + u16 channel_list; + u16 txrate; /* HFA384X_RATES_* */ +} __attribute__ ((packed)); + +struct hfa384x_hostscan_request { + u16 channel_list; + u16 txrate; + u16 target_ssid_len; + u8 target_ssid[32]; +} __attribute__ ((packed)); + +struct hfa384x_join_request { + u8 bssid[6]; + u16 channel; +} __attribute__ ((packed)); + +struct hfa384x_info_frame { + u16 len; + u16 type; +} __attribute__ ((packed)); + +struct hfa384x_comm_tallies { + u16 tx_unicast_frames; + u16 tx_multicast_frames; + u16 tx_fragments; + u16 tx_unicast_octets; + u16 tx_multicast_octets; + u16 tx_deferred_transmissions; + u16 tx_single_retry_frames; + u16 tx_multiple_retry_frames; + u16 tx_retry_limit_exceeded; + u16 tx_discards; + u16 rx_unicast_frames; + u16 rx_multicast_frames; + u16 rx_fragments; + u16 rx_unicast_octets; + u16 rx_multicast_octets; + u16 rx_fcs_errors; + u16 rx_discards_no_buffer; + u16 tx_discards_wrong_sa; + u16 rx_discards_wep_undecryptable; + u16 rx_message_in_msg_fragments; + u16 rx_message_in_bad_msg_fragments; +} __attribute__ ((packed)); + +struct hfa384x_comm_tallies32 { + u32 tx_unicast_frames; + u32 tx_multicast_frames; + u32 tx_fragments; + u32 tx_unicast_octets; + u32 tx_multicast_octets; + u32 tx_deferred_transmissions; + u32 tx_single_retry_frames; + u32 tx_multiple_retry_frames; + u32 tx_retry_limit_exceeded; + u32 tx_discards; + u32 rx_unicast_frames; + u32 rx_multicast_frames; + u32 rx_fragments; + u32 rx_unicast_octets; + u32 rx_multicast_octets; + u32 rx_fcs_errors; + u32 rx_discards_no_buffer; + u32 tx_discards_wrong_sa; + u32 rx_discards_wep_undecryptable; + u32 rx_message_in_msg_fragments; + u32 rx_message_in_bad_msg_fragments; +} __attribute__ ((packed)); + +struct hfa384x_scan_result_hdr { + u16 reserved; + u16 scan_reason; +#define HFA384X_SCAN_IN_PROGRESS 0 /* no results available yet */ +#define HFA384X_SCAN_HOST_INITIATED 1 +#define HFA384X_SCAN_FIRMWARE_INITIATED 2 +#define HFA384X_SCAN_INQUIRY_FROM_HOST 3 +} __attribute__ ((packed)); + +#define HFA384X_SCAN_MAX_RESULTS 32 + +struct hfa384x_scan_result { + u16 chid; + u16 anl; + u16 sl; + u8 bssid[6]; + u16 beacon_interval; + u16 capability; + u16 ssid_len; + u8 ssid[32]; + u8 sup_rates[10]; + u16 rate; +} __attribute__ ((packed)); + +struct hfa384x_hostscan_result { + u16 chid; + u16 anl; + u16 sl; + u8 bssid[6]; + u16 beacon_interval; + u16 capability; + u16 ssid_len; + u8 ssid[32]; + u8 sup_rates[10]; + u16 rate; + u16 atim; +} __attribute__ ((packed)); + +struct comm_tallies_sums { + unsigned int tx_unicast_frames; + unsigned int tx_multicast_frames; + unsigned int tx_fragments; + unsigned int tx_unicast_octets; + unsigned int tx_multicast_octets; + unsigned int tx_deferred_transmissions; + unsigned int tx_single_retry_frames; + unsigned int tx_multiple_retry_frames; + unsigned int tx_retry_limit_exceeded; + unsigned int tx_discards; + unsigned int rx_unicast_frames; + unsigned int rx_multicast_frames; + unsigned int rx_fragments; + unsigned int rx_unicast_octets; + unsigned int rx_multicast_octets; + unsigned int rx_fcs_errors; + unsigned int rx_discards_no_buffer; + unsigned int tx_discards_wrong_sa; + unsigned int rx_discards_wep_undecryptable; + unsigned int rx_message_in_msg_fragments; + unsigned int rx_message_in_bad_msg_fragments; +}; + + +struct hfa384x_regs { + u16 cmd; + u16 evstat; + u16 offset0; + u16 offset1; + u16 swsupport0; +}; + + +#if defined(PRISM2_PCCARD) || defined(PRISM2_PLX) +/* I/O ports for HFA384X Controller access */ +#define HFA384X_CMD_OFF 0x00 +#define HFA384X_PARAM0_OFF 0x02 +#define HFA384X_PARAM1_OFF 0x04 +#define HFA384X_PARAM2_OFF 0x06 +#define HFA384X_STATUS_OFF 0x08 +#define HFA384X_RESP0_OFF 0x0A +#define HFA384X_RESP1_OFF 0x0C +#define HFA384X_RESP2_OFF 0x0E +#define HFA384X_INFOFID_OFF 0x10 +#define HFA384X_CONTROL_OFF 0x14 +#define HFA384X_SELECT0_OFF 0x18 +#define HFA384X_SELECT1_OFF 0x1A +#define HFA384X_OFFSET0_OFF 0x1C +#define HFA384X_OFFSET1_OFF 0x1E +#define HFA384X_RXFID_OFF 0x20 +#define HFA384X_ALLOCFID_OFF 0x22 +#define HFA384X_TXCOMPLFID_OFF 0x24 +#define HFA384X_SWSUPPORT0_OFF 0x28 +#define HFA384X_SWSUPPORT1_OFF 0x2A +#define HFA384X_SWSUPPORT2_OFF 0x2C +#define HFA384X_EVSTAT_OFF 0x30 +#define HFA384X_INTEN_OFF 0x32 +#define HFA384X_EVACK_OFF 0x34 +#define HFA384X_DATA0_OFF 0x36 +#define HFA384X_DATA1_OFF 0x38 +#define HFA384X_AUXPAGE_OFF 0x3A +#define HFA384X_AUXOFFSET_OFF 0x3C +#define HFA384X_AUXDATA_OFF 0x3E +#endif /* PRISM2_PCCARD || PRISM2_PLX */ + +#ifdef PRISM2_PCI +/* Memory addresses for ISL3874 controller access */ +#define HFA384X_CMD_OFF 0x00 +#define HFA384X_PARAM0_OFF 0x04 +#define HFA384X_PARAM1_OFF 0x08 +#define HFA384X_PARAM2_OFF 0x0C +#define HFA384X_STATUS_OFF 0x10 +#define HFA384X_RESP0_OFF 0x14 +#define HFA384X_RESP1_OFF 0x18 +#define HFA384X_RESP2_OFF 0x1C +#define HFA384X_INFOFID_OFF 0x20 +#define HFA384X_CONTROL_OFF 0x28 +#define HFA384X_SELECT0_OFF 0x30 +#define HFA384X_SELECT1_OFF 0x34 +#define HFA384X_OFFSET0_OFF 0x38 +#define HFA384X_OFFSET1_OFF 0x3C +#define HFA384X_RXFID_OFF 0x40 +#define HFA384X_ALLOCFID_OFF 0x44 +#define HFA384X_TXCOMPLFID_OFF 0x48 +#define HFA384X_PCICOR_OFF 0x4C +#define HFA384X_SWSUPPORT0_OFF 0x50 +#define HFA384X_SWSUPPORT1_OFF 0x54 +#define HFA384X_SWSUPPORT2_OFF 0x58 +#define HFA384X_PCIHCR_OFF 0x5C +#define HFA384X_EVSTAT_OFF 0x60 +#define HFA384X_INTEN_OFF 0x64 +#define HFA384X_EVACK_OFF 0x68 +#define HFA384X_DATA0_OFF 0x6C +#define HFA384X_DATA1_OFF 0x70 +#define HFA384X_AUXPAGE_OFF 0x74 +#define HFA384X_AUXOFFSET_OFF 0x78 +#define HFA384X_AUXDATA_OFF 0x7C +#define HFA384X_PCI_M0_ADDRH_OFF 0x80 +#define HFA384X_PCI_M0_ADDRL_OFF 0x84 +#define HFA384X_PCI_M0_LEN_OFF 0x88 +#define HFA384X_PCI_M0_CTL_OFF 0x8C +#define HFA384X_PCI_STATUS_OFF 0x98 +#define HFA384X_PCI_M1_ADDRH_OFF 0xA0 +#define HFA384X_PCI_M1_ADDRL_OFF 0xA4 +#define HFA384X_PCI_M1_LEN_OFF 0xA8 +#define HFA384X_PCI_M1_CTL_OFF 0xAC + +/* PCI bus master control bits (these are undocumented; based on guessing and + * experimenting..) */ +#define HFA384X_PCI_CTL_FROM_BAP (BIT(5) | BIT(1) | BIT(0)) +#define HFA384X_PCI_CTL_TO_BAP (BIT(5) | BIT(0)) + +#endif /* PRISM2_PCI */ + + +/* Command codes for CMD reg. */ +#define HFA384X_CMDCODE_INIT 0x00 +#define HFA384X_CMDCODE_ENABLE 0x01 +#define HFA384X_CMDCODE_DISABLE 0x02 +#define HFA384X_CMDCODE_ALLOC 0x0A +#define HFA384X_CMDCODE_TRANSMIT 0x0B +#define HFA384X_CMDCODE_INQUIRE 0x11 +#define HFA384X_CMDCODE_ACCESS 0x21 +#define HFA384X_CMDCODE_ACCESS_WRITE (0x21 | BIT(8)) +#define HFA384X_CMDCODE_DOWNLOAD 0x22 +#define HFA384X_CMDCODE_READMIF 0x30 +#define HFA384X_CMDCODE_WRITEMIF 0x31 +#define HFA384X_CMDCODE_TEST 0x38 + +#define HFA384X_CMDCODE_MASK 0x3F + +/* Test mode operations */ +#define HFA384X_TEST_CHANGE_CHANNEL 0x08 +#define HFA384X_TEST_MONITOR 0x0B +#define HFA384X_TEST_STOP 0x0F +#define HFA384X_TEST_CFG_BITS 0x15 +#define HFA384X_TEST_CFG_BIT_ALC BIT(3) + +#define HFA384X_CMD_BUSY BIT(15) + +#define HFA384X_CMD_TX_RECLAIM BIT(8) + +#define HFA384X_OFFSET_ERR BIT(14) +#define HFA384X_OFFSET_BUSY BIT(15) + + +/* ProgMode for download command */ +#define HFA384X_PROGMODE_DISABLE 0 +#define HFA384X_PROGMODE_ENABLE_VOLATILE 1 +#define HFA384X_PROGMODE_ENABLE_NON_VOLATILE 2 +#define HFA384X_PROGMODE_PROGRAM_NON_VOLATILE 3 + +#define HFA384X_AUX_MAGIC0 0xfe01 +#define HFA384X_AUX_MAGIC1 0xdc23 +#define HFA384X_AUX_MAGIC2 0xba45 + +#define HFA384X_AUX_PORT_DISABLED 0 +#define HFA384X_AUX_PORT_DISABLE BIT(14) +#define HFA384X_AUX_PORT_ENABLE BIT(15) +#define HFA384X_AUX_PORT_ENABLED (BIT(14) | BIT(15)) +#define HFA384X_AUX_PORT_MASK (BIT(14) | BIT(15)) + +#define PRISM2_PDA_SIZE 1024 + + +/* Events; EvStat, Interrupt mask (IntEn), and acknowledge bits (EvAck) */ +#define HFA384X_EV_TICK BIT(15) +#define HFA384X_EV_WTERR BIT(14) +#define HFA384X_EV_INFDROP BIT(13) +#ifdef PRISM2_PCI +#define HFA384X_EV_PCI_M1 BIT(9) +#define HFA384X_EV_PCI_M0 BIT(8) +#endif /* PRISM2_PCI */ +#define HFA384X_EV_INFO BIT(7) +#define HFA384X_EV_DTIM BIT(5) +#define HFA384X_EV_CMD BIT(4) +#define HFA384X_EV_ALLOC BIT(3) +#define HFA384X_EV_TXEXC BIT(2) +#define HFA384X_EV_TX BIT(1) +#define HFA384X_EV_RX BIT(0) + + +/* HFA384X Information frames */ +#define HFA384X_INFO_HANDOVERADDR 0xF000 /* AP f/w ? */ +#define HFA384X_INFO_HANDOVERDEAUTHADDR 0xF001 /* AP f/w 1.3.7 */ +#define HFA384X_INFO_COMMTALLIES 0xF100 +#define HFA384X_INFO_SCANRESULTS 0xF101 +#define HFA384X_INFO_CHANNELINFORESULTS 0xF102 /* AP f/w only */ +#define HFA384X_INFO_HOSTSCANRESULTS 0xF103 +#define HFA384X_INFO_LINKSTATUS 0xF200 +#define HFA384X_INFO_ASSOCSTATUS 0xF201 /* ? */ +#define HFA384X_INFO_AUTHREQ 0xF202 /* ? */ +#define HFA384X_INFO_PSUSERCNT 0xF203 /* ? */ +#define HFA384X_INFO_KEYIDCHANGED 0xF204 /* ? */ + +enum { HFA384X_LINKSTATUS_CONNECTED = 1, + HFA384X_LINKSTATUS_DISCONNECTED = 2, + HFA384X_LINKSTATUS_AP_CHANGE = 3, + HFA384X_LINKSTATUS_AP_OUT_OF_RANGE = 4, + HFA384X_LINKSTATUS_AP_IN_RANGE = 5, + HFA384X_LINKSTATUS_ASSOC_FAILED = 6 }; + +enum { HFA384X_PORTTYPE_BSS = 1, HFA384X_PORTTYPE_WDS = 2, + HFA384X_PORTTYPE_PSEUDO_IBSS = 3, HFA384X_PORTTYPE_IBSS = 0, + HFA384X_PORTTYPE_HOSTAP = 6 }; + +#define HFA384X_RATES_1MBPS BIT(0) +#define HFA384X_RATES_2MBPS BIT(1) +#define HFA384X_RATES_5MBPS BIT(2) +#define HFA384X_RATES_11MBPS BIT(3) + +#define HFA384X_ROAMING_FIRMWARE 1 +#define HFA384X_ROAMING_HOST 2 +#define HFA384X_ROAMING_DISABLED 3 + +#define HFA384X_WEPFLAGS_PRIVACYINVOKED BIT(0) +#define HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED BIT(1) +#define HFA384X_WEPFLAGS_HOSTENCRYPT BIT(4) +#define HFA384X_WEPFLAGS_HOSTDECRYPT BIT(7) + +#define HFA384X_RX_STATUS_MSGTYPE (BIT(15) | BIT(14) | BIT(13)) +#define HFA384X_RX_STATUS_PCF BIT(12) +#define HFA384X_RX_STATUS_MACPORT (BIT(10) | BIT(9) | BIT(8)) +#define HFA384X_RX_STATUS_UNDECR BIT(1) +#define HFA384X_RX_STATUS_FCSERR BIT(0) + +#define HFA384X_RX_STATUS_GET_MSGTYPE(s) \ +(((s) & HFA384X_RX_STATUS_MSGTYPE) >> 13) +#define HFA384X_RX_STATUS_GET_MACPORT(s) \ +(((s) & HFA384X_RX_STATUS_MACPORT) >> 8) + +enum { HFA384X_RX_MSGTYPE_NORMAL = 0, HFA384X_RX_MSGTYPE_RFC1042 = 1, + HFA384X_RX_MSGTYPE_BRIDGETUNNEL = 2, HFA384X_RX_MSGTYPE_MGMT = 4 }; + + +#define HFA384X_TX_CTRL_ALT_RTRY BIT(5) +#define HFA384X_TX_CTRL_802_11 BIT(3) +#define HFA384X_TX_CTRL_802_3 0 +#define HFA384X_TX_CTRL_TX_EX BIT(2) +#define HFA384X_TX_CTRL_TX_OK BIT(1) + +#define HFA384X_TX_STATUS_RETRYERR BIT(0) +#define HFA384X_TX_STATUS_AGEDERR BIT(1) +#define HFA384X_TX_STATUS_DISCON BIT(2) +#define HFA384X_TX_STATUS_FORMERR BIT(3) + +/* HFA3861/3863 (BBP) Control Registers */ +#define HFA386X_CR_TX_CONFIGURE 0x12 /* CR9 */ +#define HFA386X_CR_RX_CONFIGURE 0x14 /* CR10 */ +#define HFA386X_CR_A_D_TEST_MODES2 0x1A /* CR13 */ +#define HFA386X_CR_MANUAL_TX_POWER 0x3E /* CR31 */ +#define HFA386X_CR_MEASURED_TX_POWER 0x74 /* CR58 */ + + +#ifdef __KERNEL__ + +#define PRISM2_TXFID_COUNT 8 +#define PRISM2_DATA_MAXLEN 2304 +#define PRISM2_TXFID_LEN (PRISM2_DATA_MAXLEN + sizeof(struct hfa384x_tx_frame)) +#define PRISM2_TXFID_EMPTY 0xffff +#define PRISM2_TXFID_RESERVED 0xfffe +#define PRISM2_DUMMY_FID 0xffff +#define MAX_SSID_LEN 32 +#define MAX_NAME_LEN 32 /* this is assumed to be equal to MAX_SSID_LEN */ + +#define PRISM2_DUMP_RX_HDR BIT(0) +#define PRISM2_DUMP_TX_HDR BIT(1) +#define PRISM2_DUMP_TXEXC_HDR BIT(2) + +struct hostap_tx_callback_info { + u16 idx; + void (*func)(struct sk_buff *, int ok, void *); + void *data; + struct hostap_tx_callback_info *next; +}; + + +/* IEEE 802.11 requires that STA supports concurrent reception of at least + * three fragmented frames. This define can be increased to support more + * concurrent frames, but it should be noted that each entry can consume about + * 2 kB of RAM and increasing cache size will slow down frame reassembly. */ +#define PRISM2_FRAG_CACHE_LEN 4 + +struct prism2_frag_entry { + unsigned long first_frag_time; + unsigned int seq; + unsigned int last_frag; + struct sk_buff *skb; + u8 src_addr[ETH_ALEN]; + u8 dst_addr[ETH_ALEN]; +}; + + +struct prism2_crypt_data { + struct list_head list; /* delayed deletion list */ + struct hostap_crypto_ops *ops; + void *priv; + atomic_t refcnt; +}; + +struct hostap_cmd_queue { + struct list_head list; + wait_queue_head_t compl; + volatile enum { CMD_SLEEP, CMD_CALLBACK, CMD_COMPLETED } type; + void (*callback)(struct net_device *dev, void *context, u16 resp0, + u16 res); + void *context; + u16 cmd, param0, param1; + u16 resp0, res; + volatile int issued, issuing; + + atomic_t usecnt; + int del_req; +}; + +/* options for hw_shutdown */ +#define HOSTAP_HW_NO_DISABLE BIT(0) +#define HOSTAP_HW_ENABLE_CMDCOMPL BIT(1) + +typedef struct local_info local_info_t; + +struct prism2_helper_functions { + /* these functions are defined in hardware model specific files + * (hostap_{cs,plx,pci}.c */ + int (*card_present)(local_info_t *local); + void (*cor_sreset)(local_info_t *local); + int (*dev_open)(local_info_t *local); + int (*dev_close)(local_info_t *local); + void (*genesis_reset)(local_info_t *local, int hcr); + + /* the following functions are from hostap_hw.c, but they may have some + * hardware model specific code */ + + /* FIX: low-level commands like cmd might disappear at some point to + * make it easier to change them if needed (e.g., cmd would be replaced + * with write_mif/read_mif/testcmd/inquire); at least get_rid and + * set_rid might move to hostap_{cs,plx,pci}.c */ + int (*cmd)(struct net_device *dev, u16 cmd, u16 param0, u16 *param1, + u16 *resp0); + void (*read_regs)(struct net_device *dev, struct hfa384x_regs *regs); + int (*get_rid)(struct net_device *dev, u16 rid, void *buf, int len, + int exact_len); + int (*set_rid)(struct net_device *dev, u16 rid, void *buf, int len); + int (*hw_enable)(struct net_device *dev, int initial); + int (*hw_config)(struct net_device *dev, int initial); + void (*hw_reset)(struct net_device *dev); + void (*hw_shutdown)(struct net_device *dev, int no_disable); + int (*reset_port)(struct net_device *dev); + void (*schedule_reset)(local_info_t *local); + int (*download)(local_info_t *local, + struct prism2_download_param *param); + int (*tx)(struct sk_buff *skb, struct net_device *dev); + int (*set_tim)(struct net_device *dev, int aid, int set); + int (*read_aux)(struct net_device *dev, unsigned addr, int len, + u8 *buf); + + int need_tx_headroom; /* number of bytes of headroom needed before + * IEEE 802.11 header */ + enum { HOSTAP_HW_PCCARD, HOSTAP_HW_PLX, HOSTAP_HW_PCI } hw_type; +}; + + +struct prism2_download_data { + u32 dl_cmd; + u32 start_addr; + u32 num_areas; + struct prism2_download_data_area { + u32 addr; /* wlan card address */ + u32 len; + u8 *data; /* allocated data */ + } data[0]; +}; + + +#define HOSTAP_MAX_BSS_COUNT 64 +#define MAX_WPA_IE_LEN 64 + +struct hostap_bss_info { + struct list_head list; + unsigned long last_update; + unsigned int count; + u8 bssid[ETH_ALEN]; + u16 capab_info; + u8 ssid[32]; + size_t ssid_len; + u8 wpa_ie[MAX_WPA_IE_LEN]; + size_t wpa_ie_len; + u8 rsn_ie[MAX_WPA_IE_LEN]; + size_t rsn_ie_len; + int chan; + int included; +}; + + +/* Per radio private Host AP data - shared by all net devices interfaces used + * by each radio (wlan#, wlan#ap, wlan#sta, WDS). + * ((struct hostap_interface *) netdev_priv(dev))->local points to this + * structure. */ +struct local_info { + struct module *hw_module; + int card_idx; + int dev_enabled; + int master_dev_auto_open; /* was master device opened automatically */ + int num_dev_open; /* number of open devices */ + struct net_device *dev; /* master radio device */ + struct net_device *ddev; /* main data device */ + struct list_head hostap_interfaces; /* Host AP interface list (contains + * struct hostap_interface entries) + */ + rwlock_t iface_lock; /* hostap_interfaces read lock; use write lock + * when removing entries from the list. + * TX and RX paths can use read lock. */ + spinlock_t cmdlock, baplock, lock; + struct semaphore rid_bap_sem; + u16 infofid; /* MAC buffer id for info frame */ + /* txfid, intransmitfid, next_txtid, and next_alloc are protected by + * txfidlock */ + spinlock_t txfidlock; + int txfid_len; /* length of allocated TX buffers */ + u16 txfid[PRISM2_TXFID_COUNT]; /* buffer IDs for TX frames */ + /* buffer IDs for intransmit frames or PRISM2_TXFID_EMPTY if + * corresponding txfid is free for next TX frame */ + u16 intransmitfid[PRISM2_TXFID_COUNT]; + int next_txfid; /* index to the next txfid to be checked for + * availability */ + int next_alloc; /* index to the next intransmitfid to be checked for + * allocation events */ + + /* bitfield for atomic bitops */ +#define HOSTAP_BITS_TRANSMIT 0 +#define HOSTAP_BITS_BAP_TASKLET 1 +#define HOSTAP_BITS_BAP_TASKLET2 2 + long bits; + + struct ap_data *ap; + + char essid[MAX_SSID_LEN + 1]; + char name[MAX_NAME_LEN + 1]; + int name_set; + u16 channel_mask; + struct comm_tallies_sums comm_tallies; + struct net_device_stats stats; + struct proc_dir_entry *proc; + int iw_mode; /* operating mode (IW_MODE_*) */ + int pseudo_adhoc; /* 0: IW_MODE_ADHOC is real 802.11 compliant IBSS + * 1: IW_MODE_ADHOC is "pseudo IBSS" */ + char bssid[ETH_ALEN]; + int channel; + int beacon_int; + int dtim_period; + int mtu; + int frame_dump; /* dump RX/TX frame headers, PRISM2_DUMP_ flags */ + int fw_tx_rate_control; + u16 tx_rate_control; + u16 basic_rates; + int hw_resetting; + int hw_ready; + int hw_reset_tries; /* how many times reset has been tried */ + int hw_downloading; + int shutdown; + int pri_only; + int no_pri; /* no PRI f/w present */ + int sram_type; /* 8 = x8 SRAM, 16 = x16 SRAM, -1 = unknown */ + + enum { + PRISM2_TXPOWER_AUTO = 0, PRISM2_TXPOWER_OFF, + PRISM2_TXPOWER_FIXED, PRISM2_TXPOWER_UNKNOWN + } txpower_type; + int txpower; /* if txpower_type == PRISM2_TXPOWER_FIXED */ + + /* command queue for hfa384x_cmd(); protected with cmdlock */ + struct list_head cmd_queue; + /* max_len for cmd_queue; in addition, cmd_callback can use two + * additional entries to prevent sleeping commands from stopping + * transmits */ +#define HOSTAP_CMD_QUEUE_MAX_LEN 16 + int cmd_queue_len; /* number of entries in cmd_queue */ + + /* if card timeout is detected in interrupt context, reset_queue is + * used to schedule card reseting to be done in user context */ + struct work_struct reset_queue; + + /* For scheduling a change of the promiscuous mode RID */ + int is_promisc; + struct work_struct set_multicast_list_queue; + + struct work_struct set_tim_queue; + struct list_head set_tim_list; + spinlock_t set_tim_lock; + + int wds_max_connections; + int wds_connections; +#define HOSTAP_WDS_BROADCAST_RA BIT(0) +#define HOSTAP_WDS_AP_CLIENT BIT(1) +#define HOSTAP_WDS_STANDARD_FRAME BIT(2) + u32 wds_type; + u16 tx_control; /* flags to be used in TX description */ + int manual_retry_count; /* -1 = use f/w default; otherwise retry count + * to be used with all frames */ + + struct iw_statistics wstats; + unsigned long scan_timestamp; /* Time started to scan */ + enum { + PRISM2_MONITOR_80211 = 0, PRISM2_MONITOR_PRISM = 1, + PRISM2_MONITOR_CAPHDR = 2 + } monitor_type; + int (*saved_eth_header_parse)(struct sk_buff *skb, + unsigned char *haddr); + int monitor_allow_fcserr; + + int hostapd; /* whether user space daemon, hostapd, is used for AP + * management */ + int hostapd_sta; /* whether hostapd is used with an extra STA interface + */ + struct net_device *apdev; + struct net_device_stats apdevstats; + + char assoc_ap_addr[ETH_ALEN]; + struct net_device *stadev; + struct net_device_stats stadevstats; + +#define WEP_KEYS 4 +#define WEP_KEY_LEN 13 + struct prism2_crypt_data *crypt[WEP_KEYS]; + int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */ + struct timer_list crypt_deinit_timer; + struct list_head crypt_deinit_list; + + int open_wep; /* allow unencrypted frames */ + int host_encrypt; + int host_decrypt; + int privacy_invoked; /* force privacy invoked flag even if no keys are + * configured */ + int fw_encrypt_ok; /* whether firmware-based WEP encrypt is working + * in Host AP mode (STA f/w 1.4.9 or newer) */ + int bcrx_sta_key; /* use individual keys to override default keys even + * with RX of broad/multicast frames */ + + struct prism2_frag_entry frag_cache[PRISM2_FRAG_CACHE_LEN]; + unsigned int frag_next_idx; + + int ieee_802_1x; /* is IEEE 802.1X used */ + + int antsel_tx, antsel_rx; + int rts_threshold; /* dot11RTSThreshold */ + int fragm_threshold; /* dot11FragmentationThreshold */ + int auth_algs; /* PRISM2_AUTH_ flags */ + + int enh_sec; /* cnfEnhSecurity options (broadcast SSID hide/ignore) */ + int tallies32; /* 32-bit tallies in use */ + + struct prism2_helper_functions *func; + + int bus_master_threshold_tx; + int bus_master_threshold_rx; + u8 *bus_m1_buf; + + u8 *pda; + int fw_ap; +#define PRISM2_FW_VER(major, minor, variant) \ +(((major) << 16) | ((minor) << 8) | variant) + u32 sta_fw_ver; + + /* Tasklets for handling hardware IRQ related operations outside hw IRQ + * handler */ + struct tasklet_struct bap_tasklet; + + struct tasklet_struct info_tasklet; + struct sk_buff_head info_list; /* info frames as skb's for + * info_tasklet */ + + struct hostap_tx_callback_info *tx_callback; /* registered TX callbacks + */ + + struct tasklet_struct rx_tasklet; + struct sk_buff_head rx_list; + + struct tasklet_struct sta_tx_exc_tasklet; + struct sk_buff_head sta_tx_exc_list; + + int host_roaming; + unsigned long last_join_time; /* time of last JoinRequest */ + struct hfa384x_scan_result *last_scan_results; + int last_scan_results_count; + struct hfa384x_hostscan_result *last_hostscan_results; + int last_hostscan_results_count; + enum { PRISM2_SCAN, PRISM2_HOSTSCAN } last_scan_type; + struct work_struct info_queue; + long pending_info; /* bit field of pending info_queue items */ +#define PRISM2_INFO_PENDING_LINKSTATUS 0 +#define PRISM2_INFO_PENDING_SCANRESULTS 1 + int prev_link_status; /* previous received LinkStatus info */ + int prev_linkstatus_connected; + u8 preferred_ap[6]; /* use this AP if possible */ + +#ifdef PRISM2_CALLBACK + void *callback_data; /* Can be used in callbacks; e.g., allocate + * on enable event and free on disable event. + * Host AP driver code does not touch this. */ +#endif /* PRISM2_CALLBACK */ + + wait_queue_head_t hostscan_wq; + + /* Passive scan in Host AP mode */ + struct timer_list passive_scan_timer; + int passive_scan_interval; /* in seconds, 0 = disabled */ + int passive_scan_channel; + enum { PASSIVE_SCAN_WAIT, PASSIVE_SCAN_LISTEN } passive_scan_state; + + struct timer_list tick_timer; + unsigned long last_tick_timer; + unsigned int sw_tick_stuck; + + /* commsQuality / dBmCommsQuality data from periodic polling; only + * valid for Managed and Ad-hoc modes */ + unsigned long last_comms_qual_update; + int comms_qual; /* in some odd unit.. */ + int avg_signal; /* in dB (note: negative) */ + int avg_noise; /* in dB (note: negative) */ + struct work_struct comms_qual_update; + + /* RSSI to dBm adjustment (for RX descriptor fields) */ + int rssi_to_dBm; /* substract from RSSI to get approximate dBm value */ + + /* BSS list / protected by local->lock */ + struct list_head bss_list; + int num_bss_info; + int wpa; /* WPA support enabled */ + int tkip_countermeasures; + int drop_unencrypted; + /* Generic IEEE 802.11 info element to be added to + * ProbeResp/Beacon/(Re)AssocReq */ + u8 *generic_elem; + size_t generic_elem_len; + +#ifdef PRISM2_DOWNLOAD_SUPPORT + /* Persistent volatile download data */ + struct prism2_download_data *dl_pri; + struct prism2_download_data *dl_sec; +#endif /* PRISM2_DOWNLOAD_SUPPORT */ + +#ifdef PRISM2_IO_DEBUG +#define PRISM2_IO_DEBUG_SIZE 10000 + u32 io_debug[PRISM2_IO_DEBUG_SIZE]; + int io_debug_head; + int io_debug_enabled; +#endif /* PRISM2_IO_DEBUG */ + + /* struct local_info is used also in hostap.o that does not define + * any PRISM2_{PCCARD,PLX,PCI}. Make sure that the hardware version + * specific fields are in the end of the struct (these could also be + * moved to void *priv or something like that). */ +#ifdef PRISM2_PCCARD + dev_node_t node; + dev_link_t *link; + int sandisk_connectplus; +#endif /* PRISM2_PCCARD */ + +#ifdef PRISM2_PLX + void __iomem *attr_mem; + unsigned int cor_offset; +#endif /* PRISM2_PLX */ + +#ifdef PRISM2_PCI + void __iomem *mem_start; +#ifdef PRISM2_BUS_MASTER + /* bus master for BAP0 (TX) */ + int bus_m0_tx_idx; + u8 *bus_m0_buf; + + /* bus master for BAP1 (RX) */ + struct sk_buff *rx_skb; +#endif /* PRISM2_BUS_MASTER */ +#endif /* PRISM2_PCI */ + + /* NOTE! Do not add common entries here after hardware version + * specific blocks. */ +}; + + +/* Per interface private Host AP data + * Allocated for each net device that Host AP uses (wlan#, wlan#ap, wlan#sta, + * WDS) and netdev_priv(dev) points to this structure. */ +struct hostap_interface { + struct list_head list; /* list entry in Host AP interface list */ + struct net_device *dev; /* pointer to this device */ + struct local_info *local; /* pointer to shared private data */ + struct net_device_stats stats; + struct iw_spy_data spy_data; /* iwspy support */ + struct iw_public_data wireless_data; + + enum { + HOSTAP_INTERFACE_MASTER, + HOSTAP_INTERFACE_MAIN, + HOSTAP_INTERFACE_AP, + HOSTAP_INTERFACE_STA, + HOSTAP_INTERFACE_WDS, + } type; + + union { + struct hostap_interface_wds { + u8 remote_addr[ETH_ALEN]; + } wds; + } u; +}; + + +#define HOSTAP_SKB_TX_DATA_MAGIC 0xf08a36a2 + +/* TX meta data - stored in skb->cb buffer, so this must be not increase over + * 48-byte limit */ +struct hostap_skb_tx_data { + unsigned int magic; /* HOSTAP_SKB_TX_DATA_MAGIC */ + int rate; /* transmit rate */ + struct hostap_interface *iface; + unsigned long jiffies; /* queueing timestamp */ + int wds; + unsigned short ethertype; + int tx_cb_idx; +}; + + +#ifndef PRISM2_NO_DEBUG + +#define DEBUG_FID BIT(0) +#define DEBUG_PS BIT(1) +#define DEBUG_FLOW BIT(2) +#define DEBUG_AP BIT(3) +#define DEBUG_HW BIT(4) +#define DEBUG_EXTRA BIT(5) +#define DEBUG_EXTRA2 BIT(6) +#define DEBUG_PS2 BIT(7) +#define DEBUG_MASK (DEBUG_PS | DEBUG_AP | DEBUG_HW | DEBUG_EXTRA) +#define PDEBUG(n, args...) \ +do { if ((n) & DEBUG_MASK) printk(KERN_DEBUG args); } while (0) +#define PDEBUG2(n, args...) \ +do { if ((n) & DEBUG_MASK) printk(args); } while (0) + +#else /* PRISM2_NO_DEBUG */ + +#define PDEBUG(n, args...) +#define PDEBUG2(n, args...) + +#endif /* PRISM2_NO_DEBUG */ + +enum { BAP0 = 0, BAP1 = 1 }; + +#define PRISM2_IO_DEBUG_CMD_INB 0 +#define PRISM2_IO_DEBUG_CMD_INW 1 +#define PRISM2_IO_DEBUG_CMD_INSW 2 +#define PRISM2_IO_DEBUG_CMD_OUTB 3 +#define PRISM2_IO_DEBUG_CMD_OUTW 4 +#define PRISM2_IO_DEBUG_CMD_OUTSW 5 +#define PRISM2_IO_DEBUG_CMD_ERROR 6 +#define PRISM2_IO_DEBUG_CMD_INTERRUPT 7 + +#ifdef PRISM2_IO_DEBUG + +#define PRISM2_IO_DEBUG_ENTRY(cmd, reg, value) \ +(((cmd) << 24) | ((reg) << 16) | value) + +static inline void prism2_io_debug_add(struct net_device *dev, int cmd, + int reg, int value) +{ + struct hostap_interface *iface = netdev_priv(dev); + local_info_t *local = iface->local; + + if (!local->io_debug_enabled) + return; + + local->io_debug[local->io_debug_head] = jiffies & 0xffffffff; + if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE) + local->io_debug_head = 0; + local->io_debug[local->io_debug_head] = + PRISM2_IO_DEBUG_ENTRY(cmd, reg, value); + if (++local->io_debug_head >= PRISM2_IO_DEBUG_SIZE) + local->io_debug_head = 0; +} + + +static inline void prism2_io_debug_error(struct net_device *dev, int err) +{ + struct hostap_interface *iface = netdev_priv(dev); + local_info_t *local = iface->local; + unsigned long flags; + + if (!local->io_debug_enabled) + return; + + spin_lock_irqsave(&local->lock, flags); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_ERROR, 0, err); + if (local->io_debug_enabled == 1) { + local->io_debug_enabled = 0; + printk(KERN_DEBUG "%s: I/O debug stopped\n", dev->name); + } + spin_unlock_irqrestore(&local->lock, flags); +} + +#else /* PRISM2_IO_DEBUG */ + +static inline void prism2_io_debug_add(struct net_device *dev, int cmd, + int reg, int value) +{ +} + +static inline void prism2_io_debug_error(struct net_device *dev, int err) +{ +} + +#endif /* PRISM2_IO_DEBUG */ + + +#ifdef PRISM2_CALLBACK +enum { + /* Called when card is enabled */ + PRISM2_CALLBACK_ENABLE, + + /* Called when card is disabled */ + PRISM2_CALLBACK_DISABLE, + + /* Called when RX/TX starts/ends */ + PRISM2_CALLBACK_RX_START, PRISM2_CALLBACK_RX_END, + PRISM2_CALLBACK_TX_START, PRISM2_CALLBACK_TX_END +}; +void prism2_callback(local_info_t *local, int event); +#else /* PRISM2_CALLBACK */ +#define prism2_callback(d, e) do { } while (0) +#endif /* PRISM2_CALLBACK */ + +#endif /* __KERNEL__ */ + +#endif /* HOSTAP_WLAN_H */ diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c index ec8cf29f..8f1e730 100644 --- a/drivers/net/wireless/strip.c +++ b/drivers/net/wireless/strip.c @@ -209,7 +209,7 @@ enum { NoStructure = 0, /* Really old firmware */ StructuredMessages = 1, /* Parsable AT response msgs */ ChecksummedMessages = 2 /* Parsable AT response msgs with checksums */ -} FirmwareLevel; +}; struct strip { int magic; diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c index ec83297..5914b63 100644 --- a/drivers/net/wireless/wavelan_cs.c +++ b/drivers/net/wireless/wavelan_cs.c @@ -59,6 +59,12 @@ /* Do *NOT* add other headers here, you are guaranteed to be wrong - Jean II */ #include "wavelan_cs.p.h" /* Private header */ +#ifdef WAVELAN_ROAMING +static void wl_cell_expiry(unsigned long data); +static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp); +static void wv_nwid_filter(unsigned char mode, net_local *lp); +#endif /* WAVELAN_ROAMING */ + /************************* MISC SUBROUTINES **************************/ /* * Subroutines which won't fit in one of the following category @@ -500,9 +506,9 @@ fee_write(u_long base, /* i/o port of the card */ #ifdef WAVELAN_ROAMING /* Conditional compile, see wavelan_cs.h */ -unsigned char WAVELAN_BEACON_ADDRESS[]= {0x09,0x00,0x0e,0x20,0x03,0x00}; +static unsigned char WAVELAN_BEACON_ADDRESS[] = {0x09,0x00,0x0e,0x20,0x03,0x00}; -void wv_roam_init(struct net_device *dev) +static void wv_roam_init(struct net_device *dev) { net_local *lp= netdev_priv(dev); @@ -531,7 +537,7 @@ void wv_roam_init(struct net_device *dev) printk(KERN_DEBUG "WaveLAN: Roaming enabled on device %s\n",dev->name); } -void wv_roam_cleanup(struct net_device *dev) +static void wv_roam_cleanup(struct net_device *dev) { wavepoint_history *ptr,*old_ptr; net_local *lp= netdev_priv(dev); @@ -550,7 +556,7 @@ void wv_roam_cleanup(struct net_device *dev) } /* Enable/Disable NWID promiscuous mode on a given device */ -void wv_nwid_filter(unsigned char mode, net_local *lp) +static void wv_nwid_filter(unsigned char mode, net_local *lp) { mm_t m; unsigned long flags; @@ -575,7 +581,7 @@ void wv_nwid_filter(unsigned char mode, net_local *lp) } /* Find a record in the WavePoint table matching a given NWID */ -wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp) +static wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp) { wavepoint_history *ptr=lp->wavepoint_table.head; @@ -588,7 +594,7 @@ wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp) } /* Create a new wavepoint table entry */ -wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp) +static wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local* lp) { wavepoint_history *new_wavepoint; @@ -624,7 +630,7 @@ wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_ } /* Remove a wavepoint entry from WavePoint table */ -void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp) +static void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp) { if(wavepoint==NULL) return; @@ -646,7 +652,7 @@ void wl_del_wavepoint(wavepoint_history *wavepoint, struct net_local *lp) } /* Timer callback function - checks WavePoint table for stale entries */ -void wl_cell_expiry(unsigned long data) +static void wl_cell_expiry(unsigned long data) { net_local *lp=(net_local *)data; wavepoint_history *wavepoint=lp->wavepoint_table.head,*old_point; @@ -686,7 +692,7 @@ void wl_cell_expiry(unsigned long data) } /* Update SNR history of a wavepoint */ -void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq) +static void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq) { int i=0,num_missed=0,ptr=0; int average_fast=0,average_slow=0; @@ -723,7 +729,7 @@ void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsi } /* Perform a handover to a new WavePoint */ -void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp) +static void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp) { kio_addr_t base = lp->dev->base_addr; mm_t m; diff --git a/drivers/net/wireless/wavelan_cs.h b/drivers/net/wireless/wavelan_cs.h index 29cff6d..fabc63e 100644 --- a/drivers/net/wireless/wavelan_cs.h +++ b/drivers/net/wireless/wavelan_cs.h @@ -62,7 +62,7 @@ * like DEC RoamAbout, or Digital Ocean, Epson, ...), you must modify this * part to accommodate your hardware... */ -const unsigned char MAC_ADDRESSES[][3] = +static const unsigned char MAC_ADDRESSES[][3] = { { 0x08, 0x00, 0x0E }, /* AT&T Wavelan (standard) & DEC RoamAbout */ { 0x08, 0x00, 0x6A }, /* AT&T Wavelan (alternate) */ @@ -79,14 +79,14 @@ const unsigned char MAC_ADDRESSES[][3] = * (as read in the offset register of the dac area). * Used to map channel numbers used by `wfreqsel' to frequencies */ -const short channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8, +static const short channel_bands[] = { 0x30, 0x58, 0x64, 0x7A, 0x80, 0xA8, 0xD0, 0xF0, 0xF8, 0x150 }; /* Frequencies of the 1.0 modem (fixed frequencies). * Use to map the PSA `subband' to a frequency * Note : all frequencies apart from the first one need to be multiplied by 10 */ -const int fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 }; +static const int fixed_bands[] = { 915e6, 2.425e8, 2.46e8, 2.484e8, 2.4305e8 }; /*************************** PC INTERFACE ****************************/ diff --git a/drivers/net/wireless/wavelan_cs.p.h b/drivers/net/wireless/wavelan_cs.p.h index ea2ef8d..4ac359e 100644 --- a/drivers/net/wireless/wavelan_cs.p.h +++ b/drivers/net/wireless/wavelan_cs.p.h @@ -648,23 +648,6 @@ struct net_local void __iomem *mem; }; -/**************************** PROTOTYPES ****************************/ - -#ifdef WAVELAN_ROAMING -/* ---------------------- ROAMING SUBROUTINES -----------------------*/ - -wavepoint_history *wl_roam_check(unsigned short nwid, net_local *lp); -wavepoint_history *wl_new_wavepoint(unsigned short nwid, unsigned char seq, net_local *lp); -void wl_del_wavepoint(wavepoint_history *wavepoint, net_local *lp); -void wl_cell_expiry(unsigned long data); -wavepoint_history *wl_best_sigqual(int fast_search, net_local *lp); -void wl_update_history(wavepoint_history *wavepoint, unsigned char sigqual, unsigned char seq); -void wv_roam_handover(wavepoint_history *wavepoint, net_local *lp); -void wv_nwid_filter(unsigned char mode, net_local *lp); -void wv_roam_init(struct net_device *dev); -void wv_roam_cleanup(struct net_device *dev); -#endif /* WAVELAN_ROAMING */ - /* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */ static inline u_char /* data */ hasr_read(u_long); /* Read the host interface : base address */ diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c index 1433e5a..0e3afab 100644 --- a/drivers/net/wireless/wl3501_cs.c +++ b/drivers/net/wireless/wl3501_cs.c @@ -297,7 +297,8 @@ static int wl3501_get_flash_mac_addr(struct wl3501_card *this) * * Move 'size' bytes from PC to card. (Shouldn't be interrupted) */ -void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, int size) +static void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, + int size) { /* switch to SRAM Page 0 */ wl3501_switch_page(this, (dest & 0x8000) ? WL3501_BSS_SPAGE1 : @@ -318,8 +319,8 @@ void wl3501_set_to_wla(struct wl3501_card *this, u16 dest, void *src, int size) * * Move 'size' bytes from card to PC. (Shouldn't be interrupted) */ -void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, - int size) +static void wl3501_get_from_wla(struct wl3501_card *this, u16 src, void *dest, + int size) { /* switch to SRAM Page 0 */ wl3501_switch_page(this, (src & 0x8000) ? WL3501_BSS_SPAGE1 : @@ -1439,14 +1440,14 @@ fail: goto out; } -struct net_device_stats *wl3501_get_stats(struct net_device *dev) +static struct net_device_stats *wl3501_get_stats(struct net_device *dev) { struct wl3501_card *this = dev->priv; return &this->stats; } -struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) +static struct iw_statistics *wl3501_get_wireless_stats(struct net_device *dev) { struct wl3501_card *this = dev->priv; struct iw_statistics *wstats = &this->wstats; -- cgit v0.10.2 From 8199d3a79c224bbe5943fa08684e1f93a17881b0 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 30 Mar 2005 13:34:31 -0800 Subject: [PATCH] A new 10GB Ethernet Driver by Chelsio Communications A Linux driver for the Chelsio 10Gb Ethernet Network Controller by Chelsio (http://www.chelsio.com). This driver supports the Chelsio N210 NIC and is backward compatible with the Chelsio N110 model 10Gb NICs. It supports AMD64, EM64T and x86 systems. Signed-off-by: Tina Yang Signed-off-by: Scott Bardone Signed-off-by: Christoph Lameter Adrian said: - my3126.c is unused (because t1_my3126_ops isn't used anywhere) - what are the EXTRA_CFLAGS in drivers/net/chelsio/Makefile for? - $(cxgb-y) in drivers/net/chelsio/Makefile seems to be unneeded - completely unused global functions: - espi.c: t1_espi_get_intr_counts - sge.c: t1_sge_get_intr_counts - the following functions can be made static: - sge.c: t1_espi_workaround - sge.c: t1_sge_tx - subr.c: __t1_tpi_read - subr.c: __t1_tpi_write - subr.c: t1_wait_op_done shemminger said: The performance recommendations in cxgb.txt are common to all fast devices, and should be in one file rather than just for this device. I would rather see ip-sysctl.txt updated or a new file on tuning recommendations started. Some of them have consequences that aren't documented well. For example, turning off TCP timestamps risks data corruption from sequence wrap. A new driver shouldn't need so may #ifdef's unless you want to putit on older vendor versions of 2.4 Some accessor and wrapper functions like: t1_pci_read_config_4 adapter_name t1_malloc are just annoying noise. Why have useless dead code like: /* Interrupt handler */ +static int pm3393_interrupt_handler(struct cmac *cmac) +{ + u32 master_intr_status; +/* + 1. Read master interrupt register. + 2. Read BLOCK's interrupt status registers. + 3. Handle BLOCK interrupts. +*/ Jeff said: step 1: kill all the OS wrappers. And do you really need hooks for multiple MACs, when only one MAC is really supported? Typically these hooks are at a higher level anyway -- struct net_device. From: Christoph Lameter Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton diff -puN /dev/null Documentation/networking/cxgb.txt diff --git a/Documentation/networking/cxgb.txt b/Documentation/networking/cxgb.txt new file mode 100644 index 0000000..9f2eb64 --- /dev/null +++ b/Documentation/networking/cxgb.txt @@ -0,0 +1,322 @@ + Chelsio N210 10Gb Ethernet Network Controller + + Driver Release Notes for Linux + + Version 2.1.0 + + March 8, 2005 + +CONTENTS +======== + INTRODUCTION + FEATURES + PERFORMANCE + DRIVER MESSAGES + KNOWN ISSUES + SUPPORT + + +INTRODUCTION +============ + + This document describes the Linux driver for Chelsio 10Gb Ethernet Network + Controller. This driver supports the Chelsio N210 NIC and is backward + compatible with the Chelsio N110 model 10Gb NICs. This driver supports AMD64 + and EM64T, and x86 systems. + + +FEATURES +======== + + Adaptive Interrupts (adaptive-rx) + --------------------------------- + + This feature provides an adaptive algorithm that adjusts the interrupt + coalescing parameters, allowing the driver to dynamically adapt the latency + settings to achieve the highest performance during various types of network + load. + + The interface used to control this feature is ethtool. Please see the + ethtool manpage for additional usage information. + + By default, adaptive-rx is disabled. + To enable adaptive-rx: + + ethtool -C adaptive-rx on + + To disable adaptive-rx, use ethtool: + + ethtool -C adaptive-rx off + + After disabling adaptive-rx, the timer latency value will be set to 50us. + You may set the timer latency after disabling adaptive-rx: + + ethtool -C rx-usecs + + An example to set the timer latency value to 100us on eth0: + + ethtool -C eth0 rx-usecs 100 + + You may also provide a timer latency value while disabling adpative-rx: + + ethtool -C adaptive-rx off rx-usecs + + If adaptive-rx is disabled and a timer latency value is specified, the timer + will be set to the specified value until changed by the user or until + adaptive-rx is enabled. + + To view the status of the adaptive-rx and timer latency values: + + ethtool -c + + + TCP Segmentation Offloading (TSO) Support + ----------------------------------------- + + This feature, also known as "large send", enables a system's protocol stack + to offload portions of outbound TCP processing to a network interface card + thereby reducing system CPU utilization and enhancing performance. + + The interface used to control this feature is ethtool version 1.8 or higher. + Please see the ethtool manpage for additional usage information. + + By default, TSO is enabled. + To disable TSO: + + ethtool -K tso off + + To enable TSO: + + ethtool -K tso on + + To view the status of TSO: + + ethtool -k + + +PERFORMANCE +=========== + + The following information is provided as an example of how to change system + parameters for "performance tuning" an what value to use. You may or may not + want to change these system parameters, depending on your server/workstation + application. Doing so is not warranted in any way by Chelsio Communications, + and is done at "YOUR OWN RISK". Chelsio will not be held responsible for loss + of data or damage to equipment. + + Your distribution may have a different way of doing things, or you may prefer + a different method. These commands are shown only to provide an example of + what to do and are by no means definitive. + + Making any of the following system changes will only last until you reboot + your system. You may want to write a script that runs at boot-up which + includes the optimal settings for your system. + + Setting PCI Latency Timer: + setpci -d 1425:* 0x0c.l=0x0000F800 + + Disabling TCP timestamp: + sysctl -w net.ipv4.tcp_timestamps=0 + + Disabling SACK: + sysctl -w net.ipv4.tcp_sack=0 + + Setting TCP read buffers (min/default/max): + sysctl -w net.ipv4.tcp_rmem="10000000 10000000 10000000" + + Setting TCP write buffers (min/pressure/max): + sysctl -w net.ipv4.tcp_wmem="10000000 10000000 10000000" + + Setting TCP buffer space (min/pressure/max): + sysctl -w net.ipv4.tcp_mem="10000000 10000000 10000000" + + Setting large number of incoming connection requests (2.6.x only): + sysctl -w net.ipv4.tcp_max_syn_backlog=3000 + + Setting maximum receive socket buffer size: + sysctl -w net.core.rmem_max=524287 + + Setting maximum send socket buffer size: + sysctl -w net.core.wmem_max=524287 + + Setting default receive socket buffer size: + sysctl -w net.core.rmem_default=524287 + + Setting default send socket buffer size: + sysctl -w net.core.wmem_default=524287 + + Setting maximum option memory buffers: + sysctl -w net.core.optmem_max=524287 + + Setting maximum backlog (# of unprocessed packets before kernel drops): + sysctl -w net.core.netdev_max_backlog=300000 + + Set smp_affinity (on a multiprocessor system) to a single CPU: + echo 00000001 > /proc/irq//smp_affinity + + TCP window size for single connections: + The receive buffer (RX_WINDOW) size must be at least as large as the + Bandwidth-Delay Product of the communication link between the sender and + receiver. Due to the variations of RTT, you may want to increase the buffer + size up to 2 times the Bandwidth-Delay Product. Reference page 289 of + "TCP/IP Illustrated, Volume 1, The Protocols" by W. Richard Stevens. + At 10Gb speeds, use the following formula: + RX_WINDOW >= 1.25MBytes * RTT(in milliseconds) + Example for RTT with 100us: RX_WINDOW = (1,250,000 * 0.1) = 125,000 + RX_WINDOW sizes of 256KB - 512KB should be sufficient. + Setting the min, max, and default receive buffer (RX_WINDOW) size: + sysctl -w net.ipv4.tcp_rmem=" " + + TCP window size for multiple connections: + The receive buffer (RX_WINDOW) size may be calculated the same as single + connections, but should be divided by the number of connections. The + smaller window prevents congestion and facilitates better pacing, + especially if/when MAC level flow control does not work well or when it is + not supported on the machine. Experimentation may be necessary to attain + the correct value. This method is provided as a starting point fot the + correct receive buffer size. + Setting the min, max, and default receive buffer (RX_WINDOW) size is + performed in the same manner as single connection. + + +DRIVER MESSAGES +=============== + + The following messages are the most common messages logged by syslog. These + may be found in /var/log/messages. + + Driver up: + Chelsio Network Driver - version 2.1.0 + + NIC detected: + eth#: Chelsio N210 1x10GBaseX NIC (rev #), PCIX 133MHz/64-bit + + Link up: + eth#: link is up at 10 Gbps, full duplex + + Link down: + eth#: link is down + + +KNOWN ISSUES +============ + + These issues have been identified during testing. The following information + is provided as a workaround to the problem. In some cases, this problem is + inherent to Linux or to a particular Linux Distribution and/or hardware + platform. + + 1. Large number of TCP retransmits on a multiprocessor (SMP) system. + + On a system with multiple CPUs, the interrupt (IRQ) for the network + controller may be bound to more than one CPU. This will cause TCP + retransmits if the packet data were to be split across different CPUs + and re-assembled in a different order than expected. + + To eliminate the TCP retransmits, set smp_affinity on the particular + interrupt to a single CPU. You can locate the interrupt (IRQ) used on + the N110/N210 by using ifconfig: + ifconfig | grep Interrupt + Set the smp_affinity to a single CPU: + echo 1 > /proc/irq//smp_affinity + + It is highly suggested that you do not run the irqbalance daemon on your + system, as this will change any smp_affinity setting you have applied. + The irqbalance daemon runs on a 10 second interval and binds interrupts + to the least loaded CPU determined by the daemon. To disable this daemon: + chkconfig --level 2345 irqbalance off + + By default, some Linux distributions enable the kernel feature, + irqbalance, which performs the same function as the daemon. To disable + this feature, add the following line to your bootloader: + noirqbalance + + Example using the Grub bootloader: + title Red Hat Enterprise Linux AS (2.4.21-27.ELsmp) + root (hd0,0) + kernel /vmlinuz-2.4.21-27.ELsmp ro root=/dev/hda3 noirqbalance + initrd /initrd-2.4.21-27.ELsmp.img + + 2. After running insmod, the driver is loaded and the incorrect network + interface is brought up without running ifup. + + When using 2.4.x kernels, including RHEL kernels, the Linux kernel + invokes a script named "hotplug". This script is primarily used to + automatically bring up USB devices when they are plugged in, however, + the script also attempts to automatically bring up a network interface + after loading the kernel module. The hotplug script does this by scanning + the ifcfg-eth# config files in /etc/sysconfig/network-scripts, looking + for HWADDR=. + + If the hotplug script does not find the HWADDRR within any of the + ifcfg-eth# files, it will bring up the device with the next available + interface name. If this interface is already configured for a different + network card, your new interface will have incorrect IP address and + network settings. + + To solve this issue, you can add the HWADDR= key to the + interface config file of your network controller. + + To disable this "hotplug" feature, you may add the driver (module name) + to the "blacklist" file located in /etc/hotplug. It has been noted that + this does not work for network devices because the net.agent script + does not use the blacklist file. Simply remove, or rename, the net.agent + script located in /etc/hotplug to disable this feature. + + 3. Transport Protocol (TP) hangs when running heavy multi-connection traffic + on an AMD Opteron system with HyperTransport PCI-X Tunnel chipset. + + If your AMD Opteron system uses the AMD-8131 HyperTransport PCI-X Tunnel + chipset, you may experience the "133-Mhz Mode Split Completion Data + Corruption" bug identified by AMD while using a 133Mhz PCI-X card on the + bus PCI-X bus. + + AMD states, "Under highly specific conditions, the AMD-8131 PCI-X Tunnel + can provide stale data via split completion cycles to a PCI-X card that + is operating at 133 Mhz", causing data corruption. + + AMD's provides three workarounds for this problem, however, Chelsio + recommends the first option for best performance with this bug: + + For 133Mhz secondary bus operation, limit the transaction length and + the number of outstanding transactions, via BIOS configuration + programming of the PCI-X card, to the following: + + Data Length (bytes): 2k + Total allowed outstanding transactions: 1 + + Please refer to AMD 8131-HT/PCI-X Errata 26310 Rev 3.08 August 2004, + section 56, "133-MHz Mode Split Completion Data Corruption" for more + details with this bug and workarounds suggested by AMD. + + +SUPPORT +======= + + If you have problems with the software or hardware, please contact our + customer support team via email at support@chelsio.com or check our website + at http://www.chelsio.com + +=============================================================================== + + Chelsio Communications + 370 San Aleso Ave. + Suite 100 + Sunnyvale, CA 94085 + http://www.chelsio.com + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License, version 2, as +published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License along +with this program; if not, write to the Free Software Foundation, Inc., +59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + + Copyright (c) 2003-2005 Chelsio Communications. All rights reserved. + +=============================================================================== diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 3a0a55b..8a7928f 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2080,6 +2080,25 @@ endmenu menu "Ethernet (10000 Mbit)" depends on NETDEVICES && !UML +config CHELSIO_T1 + tristate "Chelsio 10Gb Ethernet support" + depends on PCI + help + This driver supports Chelsio N110 and N210 models 10Gb Ethernet + cards. More information about adapter features and performance + tuning is in . + + For general information about Chelsio and our products, visit + our website at . + + For customer support, please visit our customer support page at + . + + Please send feedback to . + + To compile this driver as a module, choose M here: the module + will be called cxgb. + config IXGB tristate "Intel(R) PRO/10GbE support" depends on PCI diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 6202b10..1992166 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -9,6 +9,7 @@ endif obj-$(CONFIG_E1000) += e1000/ obj-$(CONFIG_IBM_EMAC) += ibm_emac/ obj-$(CONFIG_IXGB) += ixgb/ +obj-$(CONFIG_CHELSIO_T1) += chelsio/ obj-$(CONFIG_BONDING) += bonding/ obj-$(CONFIG_GIANFAR) += gianfar_driver.o diff --git a/drivers/net/chelsio/Makefile b/drivers/net/chelsio/Makefile new file mode 100644 index 0000000..ff8c11b --- /dev/null +++ b/drivers/net/chelsio/Makefile @@ -0,0 +1,12 @@ +# +# Chelsio 10Gb NIC driver for Linux. +# + +obj-$(CONFIG_CHELSIO_T1) += cxgb.o + +EXTRA_CFLAGS += -I$(TOPDIR)/drivers/net/chelsio $(DEBUG_FLAGS) + + +cxgb-objs := cxgb2.o espi.o tp.o pm3393.o sge.o subr.o mv88x201x.o + + diff --git a/drivers/net/chelsio/ch_ethtool.h b/drivers/net/chelsio/ch_ethtool.h new file mode 100644 index 0000000..c523d24 --- /dev/null +++ b/drivers/net/chelsio/ch_ethtool.h @@ -0,0 +1,102 @@ +/***************************************************************************** + * * + * File: ch_ethtool.h * + * $Revision: 1.5 $ * + * $Date: 2005/03/23 07:15:58 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef __CHETHTOOL_LINUX_H__ +#define __CHETHTOOL_LINUX_H__ + +/* TCB size in 32-bit words */ +#define TCB_WORDS (TCB_SIZE / 4) + +enum { + ETHTOOL_SETREG, + ETHTOOL_GETREG, + ETHTOOL_SETTPI, + ETHTOOL_GETTPI, + ETHTOOL_DEVUP, + ETHTOOL_GETMTUTAB, + ETHTOOL_SETMTUTAB, + ETHTOOL_GETMTU, + ETHTOOL_SET_PM, + ETHTOOL_GET_PM, + ETHTOOL_GET_TCAM, + ETHTOOL_SET_TCAM, + ETHTOOL_GET_TCB, + ETHTOOL_READ_TCAM_WORD, +}; + +struct ethtool_reg { + uint32_t cmd; + uint32_t addr; + uint32_t val; +}; + +struct ethtool_mtus { + uint32_t cmd; + uint16_t mtus[NMTUS]; +}; + +struct ethtool_pm { + uint32_t cmd; + uint32_t tx_pg_sz; + uint32_t tx_num_pg; + uint32_t rx_pg_sz; + uint32_t rx_num_pg; + uint32_t pm_total; +}; + +struct ethtool_tcam { + uint32_t cmd; + uint32_t tcam_size; + uint32_t nservers; + uint32_t nroutes; +}; + +struct ethtool_tcb { + uint32_t cmd; + uint32_t tcb_index; + uint32_t tcb_data[TCB_WORDS]; +}; + +struct ethtool_tcam_word { + uint32_t cmd; + uint32_t addr; + uint32_t buf[3]; +}; + +#define SIOCCHETHTOOL SIOCDEVPRIVATE +#endif diff --git a/drivers/net/chelsio/common.h b/drivers/net/chelsio/common.h new file mode 100644 index 0000000..017684f --- /dev/null +++ b/drivers/net/chelsio/common.h @@ -0,0 +1,269 @@ +/***************************************************************************** + * * + * File: common.h * + * $Revision: 1.5 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_COMMON_H +#define CHELSIO_COMMON_H + +#define DIMOF(x) (sizeof(x)/sizeof(x[0])) + +#define NMTUS 8 +#define MAX_NPORTS 4 +#define TCB_SIZE 128 + +enum { + CHBT_BOARD_7500, + CHBT_BOARD_8000, + CHBT_BOARD_CHT101, + CHBT_BOARD_CHT110, + CHBT_BOARD_CHT210, + CHBT_BOARD_CHT204, + CHBT_BOARD_N110, + CHBT_BOARD_N210, + CHBT_BOARD_COUGAR, + CHBT_BOARD_6800, + CHBT_BOARD_SIMUL +}; + +enum { + CHBT_TERM_FPGA, + CHBT_TERM_T1, + CHBT_TERM_T2, + CHBT_TERM_T3 +}; + +enum { + CHBT_MAC_CHELSIO_A, + CHBT_MAC_IXF1010, + CHBT_MAC_PM3393, + CHBT_MAC_VSC7321, + CHBT_MAC_DUMMY +}; + +enum { + CHBT_PHY_88E1041, + CHBT_PHY_88E1111, + CHBT_PHY_88X2010, + CHBT_PHY_XPAK, + CHBT_PHY_MY3126, + CHBT_PHY_DUMMY +}; + +enum { + PAUSE_RX = 1, + PAUSE_TX = 2, + PAUSE_AUTONEG = 4 +}; + +/* Revisions of T1 chip */ +#define TERM_T1A 0 +#define TERM_T1B 1 +#define TERM_T2 3 + +struct tp_params { + unsigned int pm_size; + unsigned int cm_size; + unsigned int pm_rx_base; + unsigned int pm_tx_base; + unsigned int pm_rx_pg_size; + unsigned int pm_tx_pg_size; + unsigned int pm_rx_num_pgs; + unsigned int pm_tx_num_pgs; + unsigned int use_5tuple_mode; +}; + +struct sge_params { + unsigned int cmdQ_size[2]; + unsigned int freelQ_size[2]; + unsigned int large_buf_capacity; + unsigned int rx_coalesce_usecs; + unsigned int last_rx_coalesce_raw; + unsigned int default_rx_coalesce_usecs; + unsigned int sample_interval_usecs; + unsigned int coalesce_enable; + unsigned int polling; +}; + +struct mc5_params { + unsigned int mode; /* selects MC5 width */ + unsigned int nservers; /* size of server region */ + unsigned int nroutes; /* size of routing region */ +}; + +/* Default MC5 region sizes */ +#define DEFAULT_SERVER_REGION_LEN 256 +#define DEFAULT_RT_REGION_LEN 1024 + +struct pci_params { + unsigned short speed; + unsigned char width; + unsigned char is_pcix; +}; + +struct adapter_params { + struct sge_params sge; + struct mc5_params mc5; + struct tp_params tp; + struct pci_params pci; + + const struct board_info *brd_info; + + unsigned short mtus[NMTUS]; + unsigned int nports; /* # of ethernet ports */ + unsigned int stats_update_period; + unsigned short chip_revision; + unsigned char chip_version; + unsigned char is_asic; +}; + +struct pci_err_cnt { + unsigned int master_parity_err; + unsigned int sig_target_abort; + unsigned int rcv_target_abort; + unsigned int rcv_master_abort; + unsigned int sig_sys_err; + unsigned int det_parity_err; + unsigned int pio_parity_err; + unsigned int wf_parity_err; + unsigned int rf_parity_err; + unsigned int cf_parity_err; +}; + +struct link_config { + unsigned int supported; /* link capabilities */ + unsigned int advertising; /* advertised capabilities */ + unsigned short requested_speed; /* speed user has requested */ + unsigned short speed; /* actual link speed */ + unsigned char requested_duplex; /* duplex user has requested */ + unsigned char duplex; /* actual link duplex */ + unsigned char requested_fc; /* flow control user has requested */ + unsigned char fc; /* actual link flow control */ + unsigned char autoneg; /* autonegotiating? */ +}; + +#define SPEED_INVALID 0xffff +#define DUPLEX_INVALID 0xff + +struct mdio_ops; +struct gmac; +struct gphy; + +struct board_info { + unsigned char board; + unsigned char port_number; + unsigned long caps; + unsigned char chip_term; + unsigned char chip_mac; + unsigned char chip_phy; + unsigned int clock_core; + unsigned int clock_mc3; + unsigned int clock_mc4; + unsigned int espi_nports; + unsigned int clock_cspi; + unsigned int clock_elmer0; + unsigned char mdio_mdien; + unsigned char mdio_mdiinv; + unsigned char mdio_mdc; + unsigned char mdio_phybaseaddr; + struct gmac *gmac; + struct gphy *gphy; + struct mdio_ops *mdio_ops; + const char *desc; +}; + +#include "osdep.h" + +#ifndef PCI_VENDOR_ID_CHELSIO +#define PCI_VENDOR_ID_CHELSIO 0x1425 +#endif + +extern struct pci_device_id t1_pci_tbl[]; + +static inline int t1_is_asic(const adapter_t *adapter) +{ + return adapter->params.is_asic; +} + +static inline int adapter_matches_type(const adapter_t *adapter, + int version, int revision) +{ + return adapter->params.chip_version == version && + adapter->params.chip_revision == revision; +} + +#define t1_is_T1B(adap) adapter_matches_type(adap, CHBT_TERM_T1, TERM_T1B) +#define is_T2(adap) adapter_matches_type(adap, CHBT_TERM_T2, TERM_T2) + +/* Returns true if an adapter supports VLAN acceleration and TSO */ +static inline int vlan_tso_capable(const adapter_t *adapter) +{ + return !t1_is_T1B(adapter); +} + +#define for_each_port(adapter, iter) \ + for (iter = 0; iter < (adapter)->params.nports; ++iter) + +#define board_info(adapter) ((adapter)->params.brd_info) +#define is_10G(adapter) (board_info(adapter)->caps & SUPPORTED_10000baseT_Full) + +static inline unsigned int core_ticks_per_usec(const adapter_t *adap) +{ + return board_info(adap)->clock_core / 1000000; +} + +int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value); +int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value); + +void t1_interrupts_enable(adapter_t *adapter); +void t1_interrupts_disable(adapter_t *adapter); +void t1_interrupts_clear(adapter_t *adapter); +int elmer0_ext_intr_handler(adapter_t *adapter); +int t1_slow_intr_handler(adapter_t *adapter); + +int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc); +const struct board_info *t1_get_board_info(unsigned int board_id); +const struct board_info *t1_get_board_info_from_ids(unsigned int devid, + unsigned short ssid); +int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data); +int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi, + struct adapter_params *p); +int t1_init_hw_modules(adapter_t *adapter); +int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi); +void t1_free_sw_modules(adapter_t *adapter); +void t1_fatal_err(adapter_t *adapter); +#endif + diff --git a/drivers/net/chelsio/cphy.h b/drivers/net/chelsio/cphy.h new file mode 100644 index 0000000..1bc2248 --- /dev/null +++ b/drivers/net/chelsio/cphy.h @@ -0,0 +1,150 @@ +/***************************************************************************** + * * + * File: cphy.h * + * $Revision: 1.4 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_CPHY_H +#define CHELSIO_CPHY_H + +#include "common.h" + +struct mdio_ops { + void (*init)(adapter_t *adapter, const struct board_info *bi); + int (*read)(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int *val); + int (*write)(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int val); +}; + +/* PHY interrupt types */ +enum { + cphy_cause_link_change = 0x1, + cphy_cause_error = 0x2 +}; + +struct cphy; + +/* PHY operations */ +struct cphy_ops { + void (*destroy)(struct cphy *); + int (*reset)(struct cphy *, int wait); + + int (*interrupt_enable)(struct cphy *); + int (*interrupt_disable)(struct cphy *); + int (*interrupt_clear)(struct cphy *); + int (*interrupt_handler)(struct cphy *); + + int (*autoneg_enable)(struct cphy *); + int (*autoneg_disable)(struct cphy *); + int (*autoneg_restart)(struct cphy *); + + int (*advertise)(struct cphy *phy, unsigned int advertise_map); + int (*set_loopback)(struct cphy *, int on); + int (*set_speed_duplex)(struct cphy *phy, int speed, int duplex); + int (*get_link_status)(struct cphy *phy, int *link_ok, int *speed, + int *duplex, int *fc); +}; + +/* A PHY instance */ +struct cphy { + int addr; /* PHY address */ + adapter_t *adapter; /* associated adapter */ + struct cphy_ops *ops; /* PHY operations */ + int (*mdio_read)(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int *val); + int (*mdio_write)(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int val); + struct cphy_instance *instance; +}; + +/* Convenience MDIO read/write wrappers */ +static inline int mdio_read(struct cphy *cphy, int mmd, int reg, + unsigned int *valp) +{ + return cphy->mdio_read(cphy->adapter, cphy->addr, mmd, reg, valp); +} + +static inline int mdio_write(struct cphy *cphy, int mmd, int reg, + unsigned int val) +{ + return cphy->mdio_write(cphy->adapter, cphy->addr, mmd, reg, val); +} + +static inline int simple_mdio_read(struct cphy *cphy, int reg, + unsigned int *valp) +{ + return mdio_read(cphy, 0, reg, valp); +} + +static inline int simple_mdio_write(struct cphy *cphy, int reg, + unsigned int val) +{ + return mdio_write(cphy, 0, reg, val); +} + +/* Convenience initializer */ +static inline void cphy_init(struct cphy *phy, adapter_t *adapter, + int phy_addr, struct cphy_ops *phy_ops, + struct mdio_ops *mdio_ops) +{ + phy->adapter = adapter; + phy->addr = phy_addr; + phy->ops = phy_ops; + if (mdio_ops) { + phy->mdio_read = mdio_ops->read; + phy->mdio_write = mdio_ops->write; + } +} + +/* Operations of the PHY-instance factory */ +struct gphy { + /* Construct a PHY instance with the given PHY address */ + struct cphy *(*create)(adapter_t *adapter, int phy_addr, + struct mdio_ops *mdio_ops); + + /* + * Reset the PHY chip. This resets the whole PHY chip, not individual + * ports. + */ + int (*reset)(adapter_t *adapter); +}; + +extern struct gphy t1_my3126_ops; +extern struct gphy t1_mv88e1xxx_ops; +extern struct gphy t1_xpak_ops; +extern struct gphy t1_mv88x201x_ops; +extern struct gphy t1_dummy_phy_ops; +#endif diff --git a/drivers/net/chelsio/cpl5_cmd.h b/drivers/net/chelsio/cpl5_cmd.h new file mode 100644 index 0000000..45e9248 --- /dev/null +++ b/drivers/net/chelsio/cpl5_cmd.h @@ -0,0 +1,145 @@ +/***************************************************************************** + * * + * File: cpl5_cmd.h * + * $Revision: 1.4 $ * + * $Date: 2005/03/23 07:15:58 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef _CPL5_CMD_H +#define _CPL5_CMD_H + +#include + +#if !defined(__LITTLE_ENDIAN_BITFIELD) && !defined(__BIG_ENDIAN_BITFIELD) +#error "Adjust your defines" +#endif + +enum CPL_opcode { + CPL_RX_PKT = 0xAD, + CPL_TX_PKT = 0xB2, + CPL_TX_PKT_LSO = 0xB6, +}; + +enum { /* TX_PKT_LSO ethernet types */ + CPL_ETH_II, + CPL_ETH_II_VLAN, + CPL_ETH_802_3, + CPL_ETH_802_3_VLAN +}; + +struct cpl_rx_data { + __u32 rsvd0; + __u32 len; + __u32 seq; + __u16 urg; + __u8 rsvd1; + __u8 status; +}; + +/* + * We want this header's alignment to be no more stringent than 2-byte aligned. + * All fields are u8 or u16 except for the length. However that field is not + * used so we break it into 2 16-bit parts to easily meet our alignment needs. + */ +struct cpl_tx_pkt { + __u8 opcode; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8 iff:4; + __u8 ip_csum_dis:1; + __u8 l4_csum_dis:1; + __u8 vlan_valid:1; + __u8 rsvd:1; +#else + __u8 rsvd:1; + __u8 vlan_valid:1; + __u8 l4_csum_dis:1; + __u8 ip_csum_dis:1; + __u8 iff:4; +#endif + __u16 vlan; + __u16 len_hi; + __u16 len_lo; +}; + +struct cpl_tx_pkt_lso { + __u8 opcode; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8 iff:4; + __u8 ip_csum_dis:1; + __u8 l4_csum_dis:1; + __u8 vlan_valid:1; + __u8 rsvd:1; +#else + __u8 rsvd:1; + __u8 vlan_valid:1; + __u8 l4_csum_dis:1; + __u8 ip_csum_dis:1; + __u8 iff:4; +#endif + __u16 vlan; + __u32 len; + + __u32 rsvd2; + __u8 rsvd3; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8 tcp_hdr_words:4; + __u8 ip_hdr_words:4; +#else + __u8 ip_hdr_words:4; + __u8 tcp_hdr_words:4; +#endif + __u16 eth_type_mss; +}; + +struct cpl_rx_pkt { + __u8 opcode; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8 iff:4; + __u8 csum_valid:1; + __u8 bad_pkt:1; + __u8 vlan_valid:1; + __u8 rsvd:1; +#else + __u8 rsvd:1; + __u8 vlan_valid:1; + __u8 bad_pkt:1; + __u8 csum_valid:1; + __u8 iff:4; +#endif + __u16 csum; + __u16 vlan; + __u16 len; +}; + +#endif diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c new file mode 100644 index 0000000..48c4d5a --- /dev/null +++ b/drivers/net/chelsio/cxgb2.c @@ -0,0 +1,1231 @@ +/***************************************************************************** + * * + * File: cxgb2.c * + * $Revision: 1.11 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ch_ethtool.h" +#include "cpl5_cmd.h" +#include "regs.h" +#include "gmac.h" +#include "cphy.h" +#include "sge.h" +#include "tp.h" +#include "espi.h" + +static inline void schedule_mac_stats_update(struct adapter *ap, int secs) +{ + schedule_delayed_work(&ap->stats_update_task, secs * HZ); +} + +static inline void cancel_mac_stats_update(struct adapter *ap) +{ + cancel_delayed_work(&ap->stats_update_task); +} + +#if BITS_PER_LONG == 64 && !defined(CONFIG_X86_64) +# define FMT64 "l" +#else +# define FMT64 "ll" +#endif + +# define DRV_TYPE "" +# define MODULE_DESC "Chelsio Network Driver" + +static char driver_name[] = DRV_NAME; +static char driver_string[] = "Chelsio " DRV_TYPE "Network Driver"; +static char driver_version[] = "2.1.0"; + +#define PCI_DMA_64BIT ~0ULL +#define PCI_DMA_32BIT 0xffffffffULL + +#define MAX_CMDQ_ENTRIES 16384 +#define MAX_CMDQ1_ENTRIES 1024 +#define MAX_RX_BUFFERS 16384 +#define MAX_RX_JUMBO_BUFFERS 16384 +#define MAX_TX_BUFFERS_HIGH 16384U +#define MAX_TX_BUFFERS_LOW 1536U +#define MIN_FL_ENTRIES 32 + +#define PORT_MASK ((1 << MAX_NPORTS) - 1) + +#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ + NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) + +/* + * The EEPROM is actually bigger but only the first few bytes are used so we + * only report those. + */ +#define EEPROM_SIZE 32 + +MODULE_DESCRIPTION(MODULE_DESC); +MODULE_AUTHOR("Chelsio Communications"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, t1_pci_tbl); + +static int dflt_msg_enable = DFLT_MSG_ENABLE; + +MODULE_PARM(dflt_msg_enable, "i"); +MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 message enable bitmap"); + + +static const char pci_speed[][4] = { + "33", "66", "100", "133" +}; + +/* + * Setup MAC to receive the types of packets we want. + */ +static void t1_set_rxmode(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + struct cmac *mac = adapter->port[dev->if_port].mac; + struct t1_rx_mode rm; + + rm.dev = dev; + rm.idx = 0; + rm.list = dev->mc_list; + mac->ops->set_rx_mode(mac, &rm); +} + +static void link_report(struct port_info *p) +{ + if (!netif_carrier_ok(p->dev)) + printk(KERN_INFO "%s: link is down\n", p->dev->name); + else { + const char *s = "10 Mbps"; + + switch (p->link_config.speed) { + case SPEED_10000: s = "10 Gbps"; break; + case SPEED_1000: s = "1000 Mbps"; break; + case SPEED_100: s = "100 Mbps"; break; + } + + printk(KERN_INFO "%s: link is up at %s, %s duplex\n", + p->dev->name, s, + p->link_config.duplex == DUPLEX_FULL ? "full" : "half"); + } +} + +void t1_link_changed(struct adapter *adapter, int port_id, int link_stat, + int speed, int duplex, int pause) +{ + struct port_info *p = &adapter->port[port_id]; + + if (link_stat != netif_carrier_ok(p->dev)) { + if (link_stat) + netif_carrier_on(p->dev); + else + netif_carrier_off(p->dev); + link_report(p); + + } +} + +static void link_start(struct port_info *p) +{ + struct cmac *mac = p->mac; + + mac->ops->reset(mac); + if (mac->ops->macaddress_set) + mac->ops->macaddress_set(mac, p->dev->dev_addr); + t1_set_rxmode(p->dev); + t1_link_start(p->phy, mac, &p->link_config); + mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); +} + +static void enable_hw_csum(struct adapter *adapter) +{ + if (adapter->flags & TSO_CAPABLE) + t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */ + if (adapter->flags & UDP_CSUM_CAPABLE) + t1_tp_set_udp_checksum_offload(adapter->tp, 1); + t1_tp_set_tcp_checksum_offload(adapter->tp, 1); +} + +/* + * Things to do upon first use of a card. + * This must run with the rtnl lock held. + */ +static int cxgb_up(struct adapter *adapter) +{ + int err = 0; + + if (!(adapter->flags & FULL_INIT_DONE)) { + err = t1_init_hw_modules(adapter); + if (err) + goto out_err; + + enable_hw_csum(adapter); + adapter->flags |= FULL_INIT_DONE; + } + + t1_interrupts_clear(adapter); + + if ((err = request_irq(adapter->pdev->irq, &t1_interrupt, SA_SHIRQ, + adapter->name, adapter))) + goto out_err; + + t1_sge_start(adapter->sge); + t1_interrupts_enable(adapter); + + err = 0; + out_err: + return err; +} + +/* + * Release resources when all the ports have been stopped. + */ +static void cxgb_down(struct adapter *adapter) +{ + t1_sge_stop(adapter->sge); + t1_interrupts_disable(adapter); + free_irq(adapter->pdev->irq, adapter); +} + +static int cxgb_open(struct net_device *dev) +{ + int err; + struct adapter *adapter = dev->priv; + int other_ports = adapter->open_device_map & PORT_MASK; + + if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) + return err; + + __set_bit(dev->if_port, &adapter->open_device_map); + link_start(&adapter->port[dev->if_port]); + netif_start_queue(dev); + if (!other_ports && adapter->params.stats_update_period) + schedule_mac_stats_update(adapter, + adapter->params.stats_update_period); + return 0; +} + +static int cxgb_close(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + struct cmac *mac = p->mac; + + netif_stop_queue(dev); + mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX); + netif_carrier_off(dev); + + clear_bit(dev->if_port, &adapter->open_device_map); + if (adapter->params.stats_update_period && + !(adapter->open_device_map & PORT_MASK)) { + /* Stop statistics accumulation. */ + smp_mb__after_clear_bit(); + spin_lock(&adapter->work_lock); /* sync with update task */ + spin_unlock(&adapter->work_lock); + cancel_mac_stats_update(adapter); + } + + if (!adapter->open_device_map) + cxgb_down(adapter); + return 0; +} + +static struct net_device_stats *t1_get_stats(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + struct net_device_stats *ns = &p->netstats; + const struct cmac_statistics *pstats; + + /* Do a full update of the MAC stats */ + pstats = p->mac->ops->statistics_update(p->mac, + MAC_STATS_UPDATE_FULL); + + ns->tx_packets = pstats->TxUnicastFramesOK + + pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK; + + ns->rx_packets = pstats->RxUnicastFramesOK + + pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK; + + ns->tx_bytes = pstats->TxOctetsOK; + ns->rx_bytes = pstats->RxOctetsOK; + + ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors + + pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions; + ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors + + pstats->RxFCSErrors + pstats->RxAlignErrors + + pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors + + pstats->RxSymbolErrors + pstats->RxRuntErrors; + + ns->multicast = pstats->RxMulticastFramesOK; + ns->collisions = pstats->TxTotalCollisions; + + /* detailed rx_errors */ + ns->rx_length_errors = pstats->RxFrameTooLongErrors + + pstats->RxJabberErrors; + ns->rx_over_errors = 0; + ns->rx_crc_errors = pstats->RxFCSErrors; + ns->rx_frame_errors = pstats->RxAlignErrors; + ns->rx_fifo_errors = 0; + ns->rx_missed_errors = 0; + + /* detailed tx_errors */ + ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions; + ns->tx_carrier_errors = 0; + ns->tx_fifo_errors = pstats->TxUnderrun; + ns->tx_heartbeat_errors = 0; + ns->tx_window_errors = pstats->TxLateCollisions; + return ns; +} + +static u32 get_msglevel(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + + return adapter->msg_enable; +} + +static void set_msglevel(struct net_device *dev, u32 val) +{ + struct adapter *adapter = dev->priv; + + adapter->msg_enable = val; +} + +static char stats_strings[][ETH_GSTRING_LEN] = { + "TxOctetsOK", + "TxOctetsBad", + "TxUnicastFramesOK", + "TxMulticastFramesOK", + "TxBroadcastFramesOK", + "TxPauseFrames", + "TxFramesWithDeferredXmissions", + "TxLateCollisions", + "TxTotalCollisions", + "TxFramesAbortedDueToXSCollisions", + "TxUnderrun", + "TxLengthErrors", + "TxInternalMACXmitError", + "TxFramesWithExcessiveDeferral", + "TxFCSErrors", + + "RxOctetsOK", + "RxOctetsBad", + "RxUnicastFramesOK", + "RxMulticastFramesOK", + "RxBroadcastFramesOK", + "RxPauseFrames", + "RxFCSErrors", + "RxAlignErrors", + "RxSymbolErrors", + "RxDataErrors", + "RxSequenceErrors", + "RxRuntErrors", + "RxJabberErrors", + "RxInternalMACRcvError", + "RxInRangeLengthErrors", + "RxOutOfRangeLengthField", + "RxFrameTooLongErrors" +}; + +static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + struct adapter *adapter = dev->priv; + + strcpy(info->driver, driver_name); + strcpy(info->version, driver_version); + strcpy(info->fw_version, "N/A"); + strcpy(info->bus_info, pci_name(adapter->pdev)); +} + +static int get_stats_count(struct net_device *dev) +{ + return ARRAY_SIZE(stats_strings); +} + +static void get_strings(struct net_device *dev, u32 stringset, u8 *data) +{ + if (stringset == ETH_SS_STATS) + memcpy(data, stats_strings, sizeof(stats_strings)); +} + +static void get_stats(struct net_device *dev, struct ethtool_stats *stats, + u64 *data) +{ + struct adapter *adapter = dev->priv; + struct cmac *mac = adapter->port[dev->if_port].mac; + const struct cmac_statistics *s; + + s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL); + + *data++ = s->TxOctetsOK; + *data++ = s->TxOctetsBad; + *data++ = s->TxUnicastFramesOK; + *data++ = s->TxMulticastFramesOK; + *data++ = s->TxBroadcastFramesOK; + *data++ = s->TxPauseFrames; + *data++ = s->TxFramesWithDeferredXmissions; + *data++ = s->TxLateCollisions; + *data++ = s->TxTotalCollisions; + *data++ = s->TxFramesAbortedDueToXSCollisions; + *data++ = s->TxUnderrun; + *data++ = s->TxLengthErrors; + *data++ = s->TxInternalMACXmitError; + *data++ = s->TxFramesWithExcessiveDeferral; + *data++ = s->TxFCSErrors; + + *data++ = s->RxOctetsOK; + *data++ = s->RxOctetsBad; + *data++ = s->RxUnicastFramesOK; + *data++ = s->RxMulticastFramesOK; + *data++ = s->RxBroadcastFramesOK; + *data++ = s->RxPauseFrames; + *data++ = s->RxFCSErrors; + *data++ = s->RxAlignErrors; + *data++ = s->RxSymbolErrors; + *data++ = s->RxDataErrors; + *data++ = s->RxSequenceErrors; + *data++ = s->RxRuntErrors; + *data++ = s->RxJabberErrors; + *data++ = s->RxInternalMACRcvError; + *data++ = s->RxInRangeLengthErrors; + *data++ = s->RxOutOfRangeLengthField; + *data++ = s->RxFrameTooLongErrors; +} + +static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + + cmd->supported = p->link_config.supported; + cmd->advertising = p->link_config.advertising; + + if (netif_carrier_ok(dev)) { + cmd->speed = p->link_config.speed; + cmd->duplex = p->link_config.duplex; + } else { + cmd->speed = -1; + cmd->duplex = -1; + } + + cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE; + cmd->phy_address = p->phy->addr; + cmd->transceiver = XCVR_EXTERNAL; + cmd->autoneg = p->link_config.autoneg; + cmd->maxtxpkt = 0; + cmd->maxrxpkt = 0; + return 0; +} + +static int speed_duplex_to_caps(int speed, int duplex) +{ + int cap = 0; + + switch (speed) { + case SPEED_10: + if (duplex == DUPLEX_FULL) + cap = SUPPORTED_10baseT_Full; + else + cap = SUPPORTED_10baseT_Half; + break; + case SPEED_100: + if (duplex == DUPLEX_FULL) + cap = SUPPORTED_100baseT_Full; + else + cap = SUPPORTED_100baseT_Half; + break; + case SPEED_1000: + if (duplex == DUPLEX_FULL) + cap = SUPPORTED_1000baseT_Full; + else + cap = SUPPORTED_1000baseT_Half; + break; + case SPEED_10000: + if (duplex == DUPLEX_FULL) + cap = SUPPORTED_10000baseT_Full; + } + return cap; +} + +#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \ + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \ + ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \ + ADVERTISED_10000baseT_Full) + +static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + struct link_config *lc = &p->link_config; + + if (!(lc->supported & SUPPORTED_Autoneg)) + return -EOPNOTSUPP; /* can't change speed/duplex */ + + if (cmd->autoneg == AUTONEG_DISABLE) { + int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex); + + if (!(lc->supported & cap) || cmd->speed == SPEED_1000) + return -EINVAL; + lc->requested_speed = cmd->speed; + lc->requested_duplex = cmd->duplex; + lc->advertising = 0; + } else { + cmd->advertising &= ADVERTISED_MASK; + if (cmd->advertising & (cmd->advertising - 1)) + cmd->advertising = lc->supported; + cmd->advertising &= lc->supported; + if (!cmd->advertising) + return -EINVAL; + lc->requested_speed = SPEED_INVALID; + lc->requested_duplex = DUPLEX_INVALID; + lc->advertising = cmd->advertising | ADVERTISED_Autoneg; + } + lc->autoneg = cmd->autoneg; + if (netif_running(dev)) + t1_link_start(p->phy, p->mac, lc); + return 0; +} + +static void get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + + epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0; + epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0; + epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0; +} + +static int set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *epause) +{ + struct adapter *adapter = dev->priv; + struct port_info *p = &adapter->port[dev->if_port]; + struct link_config *lc = &p->link_config; + + if (epause->autoneg == AUTONEG_DISABLE) + lc->requested_fc = 0; + else if (lc->supported & SUPPORTED_Autoneg) + lc->requested_fc = PAUSE_AUTONEG; + else + return -EINVAL; + + if (epause->rx_pause) + lc->requested_fc |= PAUSE_RX; + if (epause->tx_pause) + lc->requested_fc |= PAUSE_TX; + if (lc->autoneg == AUTONEG_ENABLE) { + if (netif_running(dev)) + t1_link_start(p->phy, p->mac, lc); + } else { + lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + if (netif_running(dev)) + p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1, + lc->fc); + } + return 0; +} + +static u32 get_rx_csum(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + + return (adapter->flags & RX_CSUM_ENABLED) != 0; +} + +static int set_rx_csum(struct net_device *dev, u32 data) +{ + struct adapter *adapter = dev->priv; + + if (data) + adapter->flags |= RX_CSUM_ENABLED; + else + adapter->flags &= ~RX_CSUM_ENABLED; + return 0; +} + +static int set_tso(struct net_device *dev, u32 value) +{ + struct adapter *adapter = dev->priv; + + if (!(adapter->flags & TSO_CAPABLE)) + return value ? -EOPNOTSUPP : 0; + return ethtool_op_set_tso(dev, value); +} + +static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) +{ + struct adapter *adapter = dev->priv; + int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0; + + e->rx_max_pending = MAX_RX_BUFFERS; + e->rx_mini_max_pending = 0; + e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS; + e->tx_max_pending = MAX_CMDQ_ENTRIES; + + e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl]; + e->rx_mini_pending = 0; + e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl]; + e->tx_pending = adapter->params.sge.cmdQ_size[0]; +} + +static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) +{ + struct adapter *adapter = dev->priv; + int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0; + + if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending || + e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS || + e->tx_pending > MAX_CMDQ_ENTRIES || + e->rx_pending < MIN_FL_ENTRIES || + e->rx_jumbo_pending < MIN_FL_ENTRIES || + e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1)) + return -EINVAL; + + if (adapter->flags & FULL_INIT_DONE) + return -EBUSY; + + adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending; + adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending; + adapter->params.sge.cmdQ_size[0] = e->tx_pending; + adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ? + MAX_CMDQ1_ENTRIES : e->tx_pending; + return 0; +} + +static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) +{ + struct adapter *adapter = dev->priv; + + unsigned int sge_coalesce_usecs = 0; + + sge_coalesce_usecs = adapter->params.sge.last_rx_coalesce_raw; + sge_coalesce_usecs /= board_info(adapter)->clock_core / 1000000; + if ( (adapter->params.sge.coalesce_enable && !c->use_adaptive_rx_coalesce) && + (c->rx_coalesce_usecs == sge_coalesce_usecs) ) { + adapter->params.sge.rx_coalesce_usecs = + adapter->params.sge.default_rx_coalesce_usecs; + } else { + adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs; + } + + adapter->params.sge.last_rx_coalesce_raw = adapter->params.sge.rx_coalesce_usecs; + adapter->params.sge.last_rx_coalesce_raw *= (board_info(adapter)->clock_core / 1000000); + adapter->params.sge.sample_interval_usecs = c->rate_sample_interval; + adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce; + t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge); + return 0; +} + +static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) +{ + struct adapter *adapter = dev->priv; + + if (adapter->params.sge.coalesce_enable) { /* Adaptive algorithm on */ + c->rx_coalesce_usecs = adapter->params.sge.last_rx_coalesce_raw; + c->rx_coalesce_usecs /= board_info(adapter)->clock_core / 1000000; + } else { + c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs; + } + c->rate_sample_interval = adapter->params.sge.sample_interval_usecs; + c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable; + return 0; +} + +static int get_eeprom_len(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + + return t1_is_asic(adapter) ? EEPROM_SIZE : 0; +} + +#define EEPROM_MAGIC(ap) \ + (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16)) + +static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, + u8 *data) +{ + int i; + u8 buf[EEPROM_SIZE] __attribute__((aligned(4))); + struct adapter *adapter = dev->priv; + + e->magic = EEPROM_MAGIC(adapter); + for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32)) + t1_seeprom_read(adapter, i, (u32 *)&buf[i]); + memcpy(data, buf + e->offset, e->len); + return 0; +} + +static struct ethtool_ops t1_ethtool_ops = { + .get_settings = get_settings, + .set_settings = set_settings, + .get_drvinfo = get_drvinfo, + .get_msglevel = get_msglevel, + .set_msglevel = set_msglevel, + .get_ringparam = get_sge_param, + .set_ringparam = set_sge_param, + .get_coalesce = get_coalesce, + .set_coalesce = set_coalesce, + .get_eeprom_len = get_eeprom_len, + .get_eeprom = get_eeprom, + .get_pauseparam = get_pauseparam, + .set_pauseparam = set_pauseparam, + .get_rx_csum = get_rx_csum, + .set_rx_csum = set_rx_csum, + .get_tx_csum = ethtool_op_get_tx_csum, + .set_tx_csum = ethtool_op_set_tx_csum, + .get_sg = ethtool_op_get_sg, + .set_sg = ethtool_op_set_sg, + .get_link = ethtool_op_get_link, + .get_strings = get_strings, + .get_stats_count = get_stats_count, + .get_ethtool_stats = get_stats, + .get_tso = ethtool_op_get_tso, + .set_tso = set_tso, +}; + +static int ethtool_ioctl(struct net_device *dev, void *useraddr) +{ + u32 cmd; + struct adapter *adapter = dev->priv; + + if (copy_from_user(&cmd, useraddr, sizeof(cmd))) + return -EFAULT; + + switch (cmd) { + case ETHTOOL_SETREG: { + struct ethtool_reg edata; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + if ((edata.addr & 3) != 0 || edata.addr >= adapter->mmio_len) + return -EINVAL; + if (edata.addr == A_ESPI_MISC_CONTROL) + t1_espi_set_misc_ctrl(adapter, edata.val); + else { + if (edata.addr == 0x950) + t1_sge_set_ptimeout(adapter, edata.val); + else + writel(edata.val, adapter->regs + edata.addr); + } + break; + } + case ETHTOOL_GETREG: { + struct ethtool_reg edata; + + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + if ((edata.addr & 3) != 0 || edata.addr >= adapter->mmio_len) + return -EINVAL; + if (edata.addr >= 0x900 && edata.addr <= 0x93c) + edata.val = t1_espi_get_mon(adapter, edata.addr, 1); + else { + if (edata.addr == 0x950) + edata.val = t1_sge_get_ptimeout(adapter); + else + edata.val = readl(adapter->regs + edata.addr); + } + if (copy_to_user(useraddr, &edata, sizeof(edata))) + return -EFAULT; + break; + } + case ETHTOOL_SETTPI: { + struct ethtool_reg edata; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + if ((edata.addr & 3) != 0) + return -EINVAL; + t1_tpi_write(adapter, edata.addr, edata.val); + break; + } + case ETHTOOL_GETTPI: { + struct ethtool_reg edata; + + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + if ((edata.addr & 3) != 0) + return -EINVAL; + t1_tpi_read(adapter, edata.addr, &edata.val); + if (copy_to_user(useraddr, &edata, sizeof(edata))) + return -EFAULT; + break; + } + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd) +{ + struct adapter *adapter = dev->priv; + struct mii_ioctl_data *data = (struct mii_ioctl_data *)&req->ifr_data; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = adapter->port[dev->if_port].phy->addr; + /* FALLTHRU */ + case SIOCGMIIREG: { + struct cphy *phy = adapter->port[dev->if_port].phy; + u32 val; + + if (!phy->mdio_read) return -EOPNOTSUPP; + phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f, + &val); + data->val_out = val; + break; + } + case SIOCSMIIREG: { + struct cphy *phy = adapter->port[dev->if_port].phy; + + if (!capable(CAP_NET_ADMIN)) return -EPERM; + if (!phy->mdio_write) return -EOPNOTSUPP; + phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f, + data->val_in); + break; + } + + case SIOCCHETHTOOL: + return ethtool_ioctl(dev, (void *)req->ifr_data); + default: + return -EOPNOTSUPP; + } + return 0; +} + +static int t1_change_mtu(struct net_device *dev, int new_mtu) +{ + int ret; + struct adapter *adapter = dev->priv; + struct cmac *mac = adapter->port[dev->if_port].mac; + + if (!mac->ops->set_mtu) + return -EOPNOTSUPP; + if (new_mtu < 68) + return -EINVAL; + if ((ret = mac->ops->set_mtu(mac, new_mtu))) + return ret; + dev->mtu = new_mtu; + return 0; +} + +static int t1_set_mac_addr(struct net_device *dev, void *p) +{ + struct adapter *adapter = dev->priv; + struct cmac *mac = adapter->port[dev->if_port].mac; + struct sockaddr *addr = p; + + if (!mac->ops->macaddress_set) + return -EOPNOTSUPP; + + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + mac->ops->macaddress_set(mac, dev->dev_addr); + return 0; +} + +#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) +static void vlan_rx_register(struct net_device *dev, + struct vlan_group *grp) +{ + struct adapter *adapter = dev->priv; + + spin_lock_irq(&adapter->async_lock); + adapter->vlan_grp = grp; + t1_set_vlan_accel(adapter, grp != NULL); + spin_unlock_irq(&adapter->async_lock); +} + +static void vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +{ + struct adapter *adapter = dev->priv; + + spin_lock_irq(&adapter->async_lock); + if (adapter->vlan_grp) + adapter->vlan_grp->vlan_devices[vid] = NULL; + spin_unlock_irq(&adapter->async_lock); +} +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void t1_netpoll(struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + + t1_interrupt(adapter->pdev->irq, adapter, NULL); +} +#endif + +/* + * Periodic accumulation of MAC statistics. This is used only if the MAC + * does not have any other way to prevent stats counter overflow. + */ +static void mac_stats_task(void *data) +{ + int i; + struct adapter *adapter = data; + + for_each_port(adapter, i) { + struct port_info *p = &adapter->port[i]; + + if (netif_running(p->dev)) + p->mac->ops->statistics_update(p->mac, + MAC_STATS_UPDATE_FAST); + } + + /* Schedule the next statistics update if any port is active. */ + spin_lock(&adapter->work_lock); + if (adapter->open_device_map & PORT_MASK) + schedule_mac_stats_update(adapter, + adapter->params.stats_update_period); + spin_unlock(&adapter->work_lock); +} + +/* + * Processes elmer0 external interrupts in process context. + */ +static void ext_intr_task(void *data) +{ + u32 enable; + struct adapter *adapter = data; + + elmer0_ext_intr_handler(adapter); + + /* Now reenable external interrupts */ + t1_write_reg_4(adapter, A_PL_CAUSE, F_PL_INTR_EXT); + enable = t1_read_reg_4(adapter, A_PL_ENABLE); + t1_write_reg_4(adapter, A_PL_ENABLE, enable | F_PL_INTR_EXT); + adapter->slow_intr_mask |= F_PL_INTR_EXT; +} + +/* + * Interrupt-context handler for elmer0 external interrupts. + */ +void t1_elmer0_ext_intr(struct adapter *adapter) +{ + u32 enable = t1_read_reg_4(adapter, A_PL_ENABLE); + + /* + * Schedule a task to handle external interrupts as we require + * a process context. We disable EXT interrupts in the interim + * and let the task reenable them when it's done. + */ + adapter->slow_intr_mask &= ~F_PL_INTR_EXT; + t1_write_reg_4(adapter, A_PL_ENABLE, enable & ~F_PL_INTR_EXT); + schedule_work(&adapter->ext_intr_handler_task); +} + +void t1_fatal_err(struct adapter *adapter) +{ + if (adapter->flags & FULL_INIT_DONE) { + t1_sge_stop(adapter->sge); + t1_interrupts_disable(adapter); + } + CH_ALERT("%s: encountered fatal error, operation suspended\n", + adapter->name); +} + + +static int __devinit init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static int version_printed; + + int i, err, pci_using_dac = 0; + unsigned long mmio_start, mmio_len; + const struct board_info *bi; + struct adapter *adapter = NULL; + struct port_info *pi; + + if (!version_printed) { + printk(KERN_INFO "%s - version %s\n", driver_string, + driver_version); + ++version_printed; + } + + err = pci_enable_device(pdev); + if (err) + return err; + + if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { + CH_ERR("%s: cannot find PCI device memory base address\n", + pci_name(pdev)); + err = -ENODEV; + goto out_disable_pdev; + } + + if (!pci_set_dma_mask(pdev, PCI_DMA_64BIT)) { + pci_using_dac = 1; + if (pci_set_consistent_dma_mask(pdev, PCI_DMA_64BIT)) { + CH_ERR("%s: unable to obtain 64-bit DMA for" + "consistent allocations\n", pci_name(pdev)); + err = -ENODEV; + goto out_disable_pdev; + } + } else if ((err = pci_set_dma_mask(pdev, PCI_DMA_32BIT)) != 0) { + CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev)); + goto out_disable_pdev; + } + + err = pci_request_regions(pdev, driver_name); + if (err) { + CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev)); + goto out_disable_pdev; + } + + pci_set_master(pdev); + + mmio_start = pci_resource_start(pdev, 0); + mmio_len = pci_resource_len(pdev, 0); + bi = t1_get_board_info(ent->driver_data); + + for (i = 0; i < bi->port_number; ++i) { + struct net_device *netdev; + + netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter)); + if (!netdev) { + err = -ENOMEM; + goto out_free_dev; + } + + SET_MODULE_OWNER(netdev); + SET_NETDEV_DEV(netdev, &pdev->dev); + + if (!adapter) { + adapter = netdev->priv; + adapter->pdev = pdev; + adapter->port[0].dev = netdev; /* so we don't leak it */ + + adapter->regs = ioremap(mmio_start, mmio_len); + if (!adapter->regs) { + CH_ERR("%s: cannot map device registers\n", + pci_name(pdev)); + err = -ENOMEM; + goto out_free_dev; + } + + if (t1_get_board_rev(adapter, bi, &adapter->params)) { + err = -ENODEV; /* Can't handle this chip rev */ + goto out_free_dev; + } + + adapter->name = pci_name(pdev); + adapter->msg_enable = dflt_msg_enable; + adapter->mmio_len = mmio_len; + + init_MUTEX(&adapter->mib_mutex); + spin_lock_init(&adapter->tpi_lock); + spin_lock_init(&adapter->work_lock); + spin_lock_init(&adapter->async_lock); + + INIT_WORK(&adapter->ext_intr_handler_task, + ext_intr_task, adapter); + INIT_WORK(&adapter->stats_update_task, mac_stats_task, + adapter); + + pci_set_drvdata(pdev, netdev); + + } + + pi = &adapter->port[i]; + pi->dev = netdev; + netif_carrier_off(netdev); + netdev->irq = pdev->irq; + netdev->if_port = i; + netdev->mem_start = mmio_start; + netdev->mem_end = mmio_start + mmio_len - 1; + netdev->priv = adapter; + netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; + adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE; + if (pci_using_dac) + netdev->features |= NETIF_F_HIGHDMA; + if (vlan_tso_capable(adapter)) { + adapter->flags |= UDP_CSUM_CAPABLE; +#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) + adapter->flags |= VLAN_ACCEL_CAPABLE; + netdev->features |= + NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; + netdev->vlan_rx_register = vlan_rx_register; + netdev->vlan_rx_kill_vid = vlan_rx_kill_vid; +#endif + adapter->flags |= TSO_CAPABLE; + netdev->features |= NETIF_F_TSO; + } + + netdev->open = cxgb_open; + netdev->stop = cxgb_close; + netdev->hard_start_xmit = t1_start_xmit; + netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ? + sizeof(struct cpl_tx_pkt_lso) : + sizeof(struct cpl_tx_pkt); + netdev->get_stats = t1_get_stats; + netdev->set_multicast_list = t1_set_rxmode; + netdev->do_ioctl = t1_ioctl; + netdev->change_mtu = t1_change_mtu; + netdev->set_mac_address = t1_set_mac_addr; +#ifdef CONFIG_NET_POLL_CONTROLLER + netdev->poll_controller = t1_netpoll; +#endif + netdev->weight = 64; + + SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops); + } + + if (t1_init_sw_modules(adapter, bi) < 0) { + err = -ENODEV; + goto out_free_dev; + } + + /* + * The card is now ready to go. If any errors occur during device + * registration we do not fail the whole card but rather proceed only + * with the ports we manage to register successfully. However we must + * register at least one net device. + */ + for (i = 0; i < bi->port_number; ++i) { + err = register_netdev(adapter->port[i].dev); + if (err) + CH_WARN("%s: cannot register net device %s, skipping\n", + pci_name(pdev), adapter->port[i].dev->name); + else { + /* + * Change the name we use for messages to the name of + * the first successfully registered interface. + */ + if (!adapter->registered_device_map) + adapter->name = adapter->port[i].dev->name; + + __set_bit(i, &adapter->registered_device_map); + } + } + if (!adapter->registered_device_map) { + CH_ERR("%s: could not register any net devices\n", + pci_name(pdev)); + goto out_release_adapter_res; + } + + printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name, + bi->desc, adapter->params.chip_revision, + adapter->params.pci.is_pcix ? "PCIX" : "PCI", + adapter->params.pci.speed, adapter->params.pci.width); + return 0; + + out_release_adapter_res: + t1_free_sw_modules(adapter); + out_free_dev: + if (adapter) { + if (adapter->regs) + iounmap(adapter->regs); + for (i = bi->port_number - 1; i >= 0; --i) + if (adapter->port[i].dev) + free_netdev(adapter->port[i].dev); + } + pci_release_regions(pdev); + out_disable_pdev: + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + return err; +} + +static inline void t1_sw_reset(struct pci_dev *pdev) +{ + pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3); + pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0); +} + +static void __devexit remove_one(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + if (dev) { + int i; + struct adapter *adapter = dev->priv; + + for_each_port(adapter, i) + if (test_bit(i, &adapter->registered_device_map)) + unregister_netdev(adapter->port[i].dev); + + t1_free_sw_modules(adapter); + iounmap(adapter->regs); + while (--i >= 0) + if (adapter->port[i].dev) + free_netdev(adapter->port[i].dev); + pci_release_regions(pdev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + t1_sw_reset(pdev); + } +} + +static struct pci_driver driver = { + .name = driver_name, + .id_table = t1_pci_tbl, + .probe = init_one, + .remove = __devexit_p(remove_one), +}; + +static int __init t1_init_module(void) +{ + return pci_module_init(&driver); +} + +static void __exit t1_cleanup_module(void) +{ + pci_unregister_driver(&driver); +} + +module_init(t1_init_module); +module_exit(t1_cleanup_module); + diff --git a/drivers/net/chelsio/cxgb2.h b/drivers/net/chelsio/cxgb2.h new file mode 100644 index 0000000..6ac326a --- /dev/null +++ b/drivers/net/chelsio/cxgb2.h @@ -0,0 +1,122 @@ +/***************************************************************************** + * * + * File: cxgb2.h * + * $Revision: 1.8 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef __CXGB_LINUX_H__ +#define __CXGB_LINUX_H__ + +#include +#include +#include +#include +#include + +/* This belongs in if_ether.h */ +#define ETH_P_CPL5 0xf + +struct cmac; +struct cphy; + +struct port_info { + struct net_device *dev; + struct cmac *mac; + struct cphy *phy; + struct link_config link_config; + struct net_device_stats netstats; +}; + +struct cxgbdev; +struct t1_sge; +struct pemc3; +struct pemc4; +struct pemc5; +struct peulp; +struct petp; +struct pecspi; +struct peespi; +struct work_struct; +struct vlan_group; + +enum { /* adapter flags */ + FULL_INIT_DONE = 0x1, + USING_MSI = 0x2, + TSO_CAPABLE = 0x4, + TCP_CSUM_CAPABLE = 0x8, + UDP_CSUM_CAPABLE = 0x10, + VLAN_ACCEL_CAPABLE = 0x20, + RX_CSUM_ENABLED = 0x40, +}; + +struct adapter { + u8 *regs; + struct pci_dev *pdev; + unsigned long registered_device_map; + unsigned long open_device_map; + unsigned int flags; + + const char *name; + int msg_enable; + u32 mmio_len; + + struct work_struct ext_intr_handler_task; + struct adapter_params params; + + struct vlan_group *vlan_grp; + + /* Terminator modules. */ + struct sge *sge; + struct pemc3 *mc3; + struct pemc4 *mc4; + struct pemc5 *mc5; + struct petp *tp; + struct pecspi *cspi; + struct peespi *espi; + struct peulp *ulp; + + struct port_info port[MAX_NPORTS]; + struct work_struct stats_update_task; + struct timer_list stats_update_timer; + + struct semaphore mib_mutex; + spinlock_t tpi_lock; + spinlock_t work_lock; + + spinlock_t async_lock ____cacheline_aligned; /* guards async operations */ + u32 slow_intr_mask; +}; + +#endif diff --git a/drivers/net/chelsio/elmer0.h b/drivers/net/chelsio/elmer0.h new file mode 100644 index 0000000..08f1486 --- /dev/null +++ b/drivers/net/chelsio/elmer0.h @@ -0,0 +1,157 @@ +/***************************************************************************** + * * + * File: elmer0.h * + * $Revision: 1.3 $ * + * $Date: 2005/03/23 07:15:58 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_ELMER0_H +#define CHELSIO_ELMER0_H + +/* ELMER0 flavors */ +enum { + ELMER0_XC2S300E_6FT256_C, + ELMER0_XC2S100E_6TQ144_C +}; + +/* ELMER0 registers */ +#define A_ELMER0_VERSION 0x100000 +#define A_ELMER0_PHY_CFG 0x100004 +#define A_ELMER0_INT_ENABLE 0x100008 +#define A_ELMER0_INT_CAUSE 0x10000c +#define A_ELMER0_GPI_CFG 0x100010 +#define A_ELMER0_GPI_STAT 0x100014 +#define A_ELMER0_GPO 0x100018 +#define A_ELMER0_PORT0_MI1_CFG 0x400000 + +#define S_MI1_MDI_ENABLE 0 +#define V_MI1_MDI_ENABLE(x) ((x) << S_MI1_MDI_ENABLE) +#define F_MI1_MDI_ENABLE V_MI1_MDI_ENABLE(1U) + +#define S_MI1_MDI_INVERT 1 +#define V_MI1_MDI_INVERT(x) ((x) << S_MI1_MDI_INVERT) +#define F_MI1_MDI_INVERT V_MI1_MDI_INVERT(1U) + +#define S_MI1_PREAMBLE_ENABLE 2 +#define V_MI1_PREAMBLE_ENABLE(x) ((x) << S_MI1_PREAMBLE_ENABLE) +#define F_MI1_PREAMBLE_ENABLE V_MI1_PREAMBLE_ENABLE(1U) + +#define S_MI1_SOF 3 +#define M_MI1_SOF 0x3 +#define V_MI1_SOF(x) ((x) << S_MI1_SOF) +#define G_MI1_SOF(x) (((x) >> S_MI1_SOF) & M_MI1_SOF) + +#define S_MI1_CLK_DIV 5 +#define M_MI1_CLK_DIV 0xff +#define V_MI1_CLK_DIV(x) ((x) << S_MI1_CLK_DIV) +#define G_MI1_CLK_DIV(x) (((x) >> S_MI1_CLK_DIV) & M_MI1_CLK_DIV) + +#define A_ELMER0_PORT0_MI1_ADDR 0x400004 + +#define S_MI1_REG_ADDR 0 +#define M_MI1_REG_ADDR 0x1f +#define V_MI1_REG_ADDR(x) ((x) << S_MI1_REG_ADDR) +#define G_MI1_REG_ADDR(x) (((x) >> S_MI1_REG_ADDR) & M_MI1_REG_ADDR) + +#define S_MI1_PHY_ADDR 5 +#define M_MI1_PHY_ADDR 0x1f +#define V_MI1_PHY_ADDR(x) ((x) << S_MI1_PHY_ADDR) +#define G_MI1_PHY_ADDR(x) (((x) >> S_MI1_PHY_ADDR) & M_MI1_PHY_ADDR) + +#define A_ELMER0_PORT0_MI1_DATA 0x400008 + +#define S_MI1_DATA 0 +#define M_MI1_DATA 0xffff +#define V_MI1_DATA(x) ((x) << S_MI1_DATA) +#define G_MI1_DATA(x) (((x) >> S_MI1_DATA) & M_MI1_DATA) + +#define A_ELMER0_PORT0_MI1_OP 0x40000c + +#define S_MI1_OP 0 +#define M_MI1_OP 0x3 +#define V_MI1_OP(x) ((x) << S_MI1_OP) +#define G_MI1_OP(x) (((x) >> S_MI1_OP) & M_MI1_OP) + +#define S_MI1_ADDR_AUTOINC 2 +#define V_MI1_ADDR_AUTOINC(x) ((x) << S_MI1_ADDR_AUTOINC) +#define F_MI1_ADDR_AUTOINC V_MI1_ADDR_AUTOINC(1U) + +#define S_MI1_OP_BUSY 31 +#define V_MI1_OP_BUSY(x) ((x) << S_MI1_OP_BUSY) +#define F_MI1_OP_BUSY V_MI1_OP_BUSY(1U) + +#define A_ELMER0_PORT1_MI1_CFG 0x500000 +#define A_ELMER0_PORT1_MI1_ADDR 0x500004 +#define A_ELMER0_PORT1_MI1_DATA 0x500008 +#define A_ELMER0_PORT1_MI1_OP 0x50000c +#define A_ELMER0_PORT2_MI1_CFG 0x600000 +#define A_ELMER0_PORT2_MI1_ADDR 0x600004 +#define A_ELMER0_PORT2_MI1_DATA 0x600008 +#define A_ELMER0_PORT2_MI1_OP 0x60000c +#define A_ELMER0_PORT3_MI1_CFG 0x700000 +#define A_ELMER0_PORT3_MI1_ADDR 0x700004 +#define A_ELMER0_PORT3_MI1_DATA 0x700008 +#define A_ELMER0_PORT3_MI1_OP 0x70000c + +/* Simple bit definition for GPI and GP0 registers. */ +#define ELMER0_GP_BIT0 0x0001 +#define ELMER0_GP_BIT1 0x0002 +#define ELMER0_GP_BIT2 0x0004 +#define ELMER0_GP_BIT3 0x0008 +#define ELMER0_GP_BIT4 0x0010 +#define ELMER0_GP_BIT5 0x0020 +#define ELMER0_GP_BIT6 0x0040 +#define ELMER0_GP_BIT7 0x0080 +#define ELMER0_GP_BIT8 0x0100 +#define ELMER0_GP_BIT9 0x0200 +#define ELMER0_GP_BIT10 0x0400 +#define ELMER0_GP_BIT11 0x0800 +#define ELMER0_GP_BIT12 0x1000 +#define ELMER0_GP_BIT13 0x2000 +#define ELMER0_GP_BIT14 0x4000 +#define ELMER0_GP_BIT15 0x8000 +#define ELMER0_GP_BIT16 0x10000 +#define ELMER0_GP_BIT17 0x20000 +#define ELMER0_GP_BIT18 0x40000 +#define ELMER0_GP_BIT19 0x80000 + +#define MI1_OP_DIRECT_WRITE 1 +#define MI1_OP_DIRECT_READ 2 + +#define MI1_OP_INDIRECT_ADDRESS 0 +#define MI1_OP_INDIRECT_WRITE 1 +#define MI1_OP_INDIRECT_READ_INC 2 +#define MI1_OP_INDIRECT_READ 3 + +#endif diff --git a/drivers/net/chelsio/espi.c b/drivers/net/chelsio/espi.c new file mode 100644 index 0000000..7ec2dc7 --- /dev/null +++ b/drivers/net/chelsio/espi.c @@ -0,0 +1,386 @@ +/***************************************************************************** + * * + * File: espi.c * + * $Revision: 1.9 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * Ethernet SPI functionality. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" +#include "regs.h" +#include "espi.h" + +struct peespi { + adapter_t *adapter; + struct espi_intr_counts intr_cnt; + u32 misc_ctrl; + spinlock_t lock; +}; + +#define ESPI_INTR_MASK (F_DIP4ERR | F_RXDROP | F_TXDROP | F_RXOVERFLOW | \ + F_RAMPARITYERR | F_DIP2PARITYERR) +#define MON_MASK (V_MONITORED_PORT_NUM(3) | F_MONITORED_DIRECTION \ + | F_MONITORED_INTERFACE) + +#define TRICN_CNFG 14 +#define TRICN_CMD_READ 0x11 +#define TRICN_CMD_WRITE 0x21 +#define TRICN_CMD_ATTEMPTS 10 + +static int tricn_write(adapter_t *adapter, int bundle_addr, int module_addr, + int ch_addr, int reg_offset, u32 wr_data) +{ + int busy, attempts = TRICN_CMD_ATTEMPTS; + + t1_write_reg_4(adapter, A_ESPI_CMD_ADDR, V_WRITE_DATA(wr_data) | + V_REGISTER_OFFSET(reg_offset) | + V_CHANNEL_ADDR(ch_addr) | V_MODULE_ADDR(module_addr) | + V_BUNDLE_ADDR(bundle_addr) | + V_SPI4_COMMAND(TRICN_CMD_WRITE)); + t1_write_reg_4(adapter, A_ESPI_GOSTAT, 0); + + do { + busy = t1_read_reg_4(adapter, A_ESPI_GOSTAT) & F_ESPI_CMD_BUSY; + } while (busy && --attempts); + + if (busy) + CH_ERR("%s: TRICN write timed out\n", adapter->name); + + return busy; +} + +/* 1. Deassert rx_reset_core. */ +/* 2. Program TRICN_CNFG registers. */ +/* 3. Deassert rx_reset_link */ +static int tricn_init(adapter_t *adapter) +{ + int i = 0; + int sme = 1; + int stat = 0; + int timeout = 0; + int is_ready = 0; + int dynamic_deskew = 0; + + if (dynamic_deskew) + sme = 0; + + + /* 1 */ + timeout=1000; + do { + stat = t1_read_reg_4(adapter, A_ESPI_RX_RESET); + is_ready = (stat & 0x4); + timeout--; + udelay(5); + } while (!is_ready || (timeout==0)); + t1_write_reg_4(adapter, A_ESPI_RX_RESET, 0x2); + if (timeout==0) + { + CH_ERR("ESPI : ERROR : Timeout tricn_init() \n"); + t1_fatal_err(adapter); + } + + /* 2 */ + if (sme) { + tricn_write(adapter, 0, 0, 0, TRICN_CNFG, 0x81); + tricn_write(adapter, 0, 1, 0, TRICN_CNFG, 0x81); + tricn_write(adapter, 0, 2, 0, TRICN_CNFG, 0x81); + } + for (i=1; i<= 8; i++) tricn_write(adapter, 0, 0, i, TRICN_CNFG, 0xf1); + for (i=1; i<= 2; i++) tricn_write(adapter, 0, 1, i, TRICN_CNFG, 0xf1); + for (i=1; i<= 3; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1); + for (i=4; i<= 4; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1); + for (i=5; i<= 5; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xe1); + for (i=6; i<= 6; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1); + for (i=7; i<= 7; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0x80); + for (i=8; i<= 8; i++) tricn_write(adapter, 0, 2, i, TRICN_CNFG, 0xf1); + + /* 3 */ + t1_write_reg_4(adapter, A_ESPI_RX_RESET, 0x3); + + return 0; +} + +void t1_espi_intr_enable(struct peespi *espi) +{ + u32 enable, pl_intr = t1_read_reg_4(espi->adapter, A_PL_ENABLE); + + /* + * Cannot enable ESPI interrupts on T1B because HW asserts the + * interrupt incorrectly, namely the driver gets ESPI interrupts + * but no data is actually dropped (can verify this reading the ESPI + * drop registers). Also, once the ESPI interrupt is asserted it + * cannot be cleared (HW bug). + */ + enable = t1_is_T1B(espi->adapter) ? 0 : ESPI_INTR_MASK; + t1_write_reg_4(espi->adapter, A_ESPI_INTR_ENABLE, enable); + t1_write_reg_4(espi->adapter, A_PL_ENABLE, pl_intr | F_PL_INTR_ESPI); +} + +void t1_espi_intr_clear(struct peespi *espi) +{ + t1_write_reg_4(espi->adapter, A_ESPI_INTR_STATUS, 0xffffffff); + t1_write_reg_4(espi->adapter, A_PL_CAUSE, F_PL_INTR_ESPI); +} + +void t1_espi_intr_disable(struct peespi *espi) +{ + u32 pl_intr = t1_read_reg_4(espi->adapter, A_PL_ENABLE); + + t1_write_reg_4(espi->adapter, A_ESPI_INTR_ENABLE, 0); + t1_write_reg_4(espi->adapter, A_PL_ENABLE, pl_intr & ~F_PL_INTR_ESPI); +} + +int t1_espi_intr_handler(struct peespi *espi) +{ + u32 cnt; + u32 status = t1_read_reg_4(espi->adapter, A_ESPI_INTR_STATUS); + + if (status & F_DIP4ERR) + espi->intr_cnt.DIP4_err++; + if (status & F_RXDROP) + espi->intr_cnt.rx_drops++; + if (status & F_TXDROP) + espi->intr_cnt.tx_drops++; + if (status & F_RXOVERFLOW) + espi->intr_cnt.rx_ovflw++; + if (status & F_RAMPARITYERR) + espi->intr_cnt.parity_err++; + if (status & F_DIP2PARITYERR) { + espi->intr_cnt.DIP2_parity_err++; + + /* + * Must read the error count to clear the interrupt + * that it causes. + */ + cnt = t1_read_reg_4(espi->adapter, A_ESPI_DIP2_ERR_COUNT); + } + + /* + * For T1B we need to write 1 to clear ESPI interrupts. For T2+ we + * write the status as is. + */ + if (status && t1_is_T1B(espi->adapter)) + status = 1; + t1_write_reg_4(espi->adapter, A_ESPI_INTR_STATUS, status); + return 0; +} + +static void espi_setup_for_pm3393(adapter_t *adapter) +{ + u32 wmark = t1_is_T1B(adapter) ? 0x4000 : 0x3200; + + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN0, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN1, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN2, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN3, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK, 0x100); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK, wmark); + t1_write_reg_4(adapter, A_ESPI_CALENDAR_LENGTH, 3); + t1_write_reg_4(adapter, A_ESPI_TRAIN, 0x08000008); + t1_write_reg_4(adapter, A_PORT_CONFIG, + V_RX_NPORTS(1) | V_TX_NPORTS(1)); +} + +static void espi_setup_for_vsc7321(adapter_t *adapter) +{ + u32 wmark = t1_is_T1B(adapter) ? 0x4000 : 0x3200; + + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN0, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN1, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN2, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_SCH_TOKEN3, 0x1f4); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK, 0x100); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK, wmark); + t1_write_reg_4(adapter, A_ESPI_CALENDAR_LENGTH, 3); + t1_write_reg_4(adapter, A_ESPI_TRAIN, 0x08000008); + t1_write_reg_4(adapter, A_PORT_CONFIG, + V_RX_NPORTS(1) | V_TX_NPORTS(1)); +} + +/* + * Note that T1B requires at least 2 ports for IXF1010 due to a HW bug. + */ +static void espi_setup_for_ixf1010(adapter_t *adapter, int nports) +{ + t1_write_reg_4(adapter, A_ESPI_CALENDAR_LENGTH, 1); + if (nports == 4) { + if (is_T2(adapter)) { + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK, + 0xf00); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK, + 0x3c0); + } else { + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK, + 0x7ff); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK, + 0x1ff); + } + } else { + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK, + 0x1fff); + t1_write_reg_4(adapter, A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK, + 0x7ff); + } + t1_write_reg_4(adapter, A_PORT_CONFIG, + V_RX_NPORTS(nports) | V_TX_NPORTS(nports)); +} + +/* T2 Init part -- */ +/* 1. Set T_ESPI_MISCCTRL_ADDR */ +/* 2. Init ESPI registers. */ +/* 3. Init TriCN Hard Macro */ +int t1_espi_init(struct peespi *espi, int mac_type, int nports) +{ + u32 status_enable_extra = 0; + adapter_t *adapter = espi->adapter; + u32 cnt; + u32 status, burstval = 0x800100; + + /* Disable ESPI training. MACs that can handle it enable it below. */ + t1_write_reg_4(adapter, A_ESPI_TRAIN, 0); + + if (is_T2(adapter)) { + t1_write_reg_4(adapter, A_ESPI_MISC_CONTROL, + V_OUT_OF_SYNC_COUNT(4) | + V_DIP2_PARITY_ERR_THRES(3) | V_DIP4_THRES(1)); + if (nports == 4) { + /* T204: maxburst1 = 0x40, maxburst2 = 0x20 */ + burstval = 0x200040; + } + } + t1_write_reg_4(adapter, A_ESPI_MAXBURST1_MAXBURST2, burstval); + + if (mac_type == CHBT_MAC_PM3393) + espi_setup_for_pm3393(adapter); + else if (mac_type == CHBT_MAC_VSC7321) + espi_setup_for_vsc7321(adapter); + else if (mac_type == CHBT_MAC_IXF1010) { + status_enable_extra = F_INTEL1010MODE; + espi_setup_for_ixf1010(adapter, nports); + } else + return -1; + + /* + * Make sure any pending interrupts from the SPI are + * Cleared before enabling the interrupt. + */ + t1_write_reg_4(espi->adapter, A_ESPI_INTR_ENABLE, ESPI_INTR_MASK); + status = t1_read_reg_4(espi->adapter, A_ESPI_INTR_STATUS); + if (status & F_DIP2PARITYERR) { + cnt = t1_read_reg_4(espi->adapter, A_ESPI_DIP2_ERR_COUNT); + } + + /* + * For T1B we need to write 1 to clear ESPI interrupts. For T2+ we + * write the status as is. + */ + if (status && t1_is_T1B(espi->adapter)) + status = 1; + t1_write_reg_4(espi->adapter, A_ESPI_INTR_STATUS, status); + + t1_write_reg_4(adapter, A_ESPI_FIFO_STATUS_ENABLE, + status_enable_extra | F_RXSTATUSENABLE); + + if (is_T2(adapter)) { + tricn_init(adapter); + /* + * Always position the control at the 1st port egress IN + * (sop,eop) counter to reduce PIOs for T/N210 workaround. + */ + espi->misc_ctrl = (t1_read_reg_4(adapter, A_ESPI_MISC_CONTROL) + & ~MON_MASK) | (F_MONITORED_DIRECTION + | F_MONITORED_INTERFACE); + t1_write_reg_4(adapter, A_ESPI_MISC_CONTROL, espi->misc_ctrl); + spin_lock_init(&espi->lock); + } + + return 0; +} + +void t1_espi_destroy(struct peespi *espi) +{ + kfree(espi); +} + +struct peespi *t1_espi_create(adapter_t *adapter) +{ + struct peespi *espi = kmalloc(sizeof(*espi), GFP_KERNEL); + + memset(espi, 0, sizeof(*espi)); + + if (espi) + espi->adapter = adapter; + return espi; +} + +void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val) +{ + struct peespi *espi = adapter->espi; + + if (!is_T2(adapter)) + return; + spin_lock(&espi->lock); + espi->misc_ctrl = (val & ~MON_MASK) | + (espi->misc_ctrl & MON_MASK); + t1_write_reg_4(adapter, A_ESPI_MISC_CONTROL, espi->misc_ctrl); + spin_unlock(&espi->lock); +} + +u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait) +{ + struct peespi *espi = adapter->espi; + u32 sel; + + if (!is_T2(adapter)) + return 0; + sel = V_MONITORED_PORT_NUM((addr & 0x3c) >> 2); + if (!wait) { + if (!spin_trylock(&espi->lock)) + return 0; + } + else + spin_lock(&espi->lock); + if ((sel != (espi->misc_ctrl & MON_MASK))) { + t1_write_reg_4(adapter, A_ESPI_MISC_CONTROL, + ((espi->misc_ctrl & ~MON_MASK) | sel)); + sel = t1_read_reg_4(adapter, A_ESPI_SCH_TOKEN3); + t1_write_reg_4(adapter, A_ESPI_MISC_CONTROL, + espi->misc_ctrl); + } + else + sel = t1_read_reg_4(adapter, A_ESPI_SCH_TOKEN3); + spin_unlock(&espi->lock); + return sel; +} diff --git a/drivers/net/chelsio/espi.h b/drivers/net/chelsio/espi.h new file mode 100644 index 0000000..0f84e8b --- /dev/null +++ b/drivers/net/chelsio/espi.h @@ -0,0 +1,67 @@ +/***************************************************************************** + * * + * File: espi.h * + * $Revision: 1.4 $ * + * $Date: 2005/03/23 07:15:58 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_ESPI_H +#define CHELSIO_ESPI_H + +#include "common.h" + +struct espi_intr_counts { + unsigned int DIP4_err; + unsigned int rx_drops; + unsigned int tx_drops; + unsigned int rx_ovflw; + unsigned int parity_err; + unsigned int DIP2_parity_err; +}; + +struct peespi; + +struct peespi *t1_espi_create(adapter_t *adapter); +void t1_espi_destroy(struct peespi *espi); +int t1_espi_init(struct peespi *espi, int mac_type, int nports); + +void t1_espi_intr_enable(struct peespi *); +void t1_espi_intr_clear(struct peespi *); +void t1_espi_intr_disable(struct peespi *); +int t1_espi_intr_handler(struct peespi *); + +void t1_espi_set_misc_ctrl(adapter_t *adapter, u32 val); +u32 t1_espi_get_mon(adapter_t *adapter, u32 addr, u8 wait); + +#endif diff --git a/drivers/net/chelsio/gmac.h b/drivers/net/chelsio/gmac.h new file mode 100644 index 0000000..24501e2 --- /dev/null +++ b/drivers/net/chelsio/gmac.h @@ -0,0 +1,133 @@ +/***************************************************************************** + * * + * File: gmac.h * + * $Revision: 1.3 $ * + * $Date: 2005/03/23 07:15:58 $ * + * Description: * + * Generic MAC functionality. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_GMAC_H +#define CHELSIO_GMAC_H + +#include "common.h" + +enum { MAC_STATS_UPDATE_FAST, MAC_STATS_UPDATE_FULL }; +enum { MAC_DIRECTION_RX = 1, MAC_DIRECTION_TX = 2 }; + +struct cmac_statistics { + /* Transmit */ + u64 TxOctetsOK; + u64 TxOctetsBad; + u64 TxUnicastFramesOK; + u64 TxMulticastFramesOK; + u64 TxBroadcastFramesOK; + u64 TxPauseFrames; + u64 TxFramesWithDeferredXmissions; + u64 TxLateCollisions; + u64 TxTotalCollisions; + u64 TxFramesAbortedDueToXSCollisions; + u64 TxUnderrun; + u64 TxLengthErrors; + u64 TxInternalMACXmitError; + u64 TxFramesWithExcessiveDeferral; + u64 TxFCSErrors; + + /* Receive */ + u64 RxOctetsOK; + u64 RxOctetsBad; + u64 RxUnicastFramesOK; + u64 RxMulticastFramesOK; + u64 RxBroadcastFramesOK; + u64 RxPauseFrames; + u64 RxFCSErrors; + u64 RxAlignErrors; + u64 RxSymbolErrors; + u64 RxDataErrors; + u64 RxSequenceErrors; + u64 RxRuntErrors; + u64 RxJabberErrors; + u64 RxInternalMACRcvError; + u64 RxInRangeLengthErrors; + u64 RxOutOfRangeLengthField; + u64 RxFrameTooLongErrors; +}; + +struct cmac_ops { + void (*destroy)(struct cmac *); + int (*reset)(struct cmac *); + int (*interrupt_enable)(struct cmac *); + int (*interrupt_disable)(struct cmac *); + int (*interrupt_clear)(struct cmac *); + int (*interrupt_handler)(struct cmac *); + + int (*enable)(struct cmac *, int); + int (*disable)(struct cmac *, int); + + int (*loopback_enable)(struct cmac *); + int (*loopback_disable)(struct cmac *); + + int (*set_mtu)(struct cmac *, int mtu); + int (*set_rx_mode)(struct cmac *, struct t1_rx_mode *rm); + + int (*set_speed_duplex_fc)(struct cmac *, int speed, int duplex, int fc); + int (*get_speed_duplex_fc)(struct cmac *, int *speed, int *duplex, + int *fc); + + const struct cmac_statistics *(*statistics_update)(struct cmac *, int); + + int (*macaddress_get)(struct cmac *, u8 mac_addr[6]); + int (*macaddress_set)(struct cmac *, u8 mac_addr[6]); +}; + +typedef struct _cmac_instance cmac_instance; + +struct cmac { + struct cmac_statistics stats; + adapter_t *adapter; + struct cmac_ops *ops; + cmac_instance *instance; +}; + +struct gmac { + unsigned int stats_update_period; + struct cmac *(*create)(adapter_t *adapter, int index); + int (*reset)(adapter_t *); +}; + +extern struct gmac t1_pm3393_ops; +extern struct gmac t1_chelsio_mac_ops; +extern struct gmac t1_vsc7321_ops; +extern struct gmac t1_ixf1010_ops; +extern struct gmac t1_dummy_mac_ops; +#endif diff --git a/drivers/net/chelsio/mv88x201x.c b/drivers/net/chelsio/mv88x201x.c new file mode 100644 index 0000000..f54133a --- /dev/null +++ b/drivers/net/chelsio/mv88x201x.c @@ -0,0 +1,258 @@ +/***************************************************************************** + * * + * File: mv88x201x.c * + * $Revision: 1.7 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * Marvell PHY (mv88x201x) functionality. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "cphy.h" +#include "elmer0.h" + +/* + * The 88x2010 Rev C. requires some link status registers * to be read + * twice in order to get the right values. Future * revisions will fix + * this problem and then this macro * can disappear. + */ +#define MV88x2010_LINK_STATUS_BUGS 1 + +static int led_init(struct cphy *cphy) +{ + /* Setup the LED registers so we can turn on/off. + * Writing these bits maps control to another + * register. mmd(0x1) addr(0x7) + */ + mdio_write(cphy, 0x3, 0x8304, 0xdddd); + return 0; +} + +static int led_link(struct cphy *cphy, u32 do_enable) +{ + u32 led = 0; +#define LINK_ENABLE_BIT 0x1 + + mdio_read(cphy, 0x1, 0x7, &led); + + if (do_enable & LINK_ENABLE_BIT) { + led |= LINK_ENABLE_BIT; + mdio_write(cphy, 0x1, 0x7, led); + } else { + led &= ~LINK_ENABLE_BIT; + mdio_write(cphy, 0x1, 0x7, led); + } + return 0; +} + +/* Port Reset */ +static int mv88x201x_reset(struct cphy *cphy, int wait) +{ + /* This can be done through registers. It is not required since + * a full chip reset is used. + */ + return 0; +} + +static int mv88x201x_interrupt_enable(struct cphy *cphy) +{ + /* Enable PHY LASI interrupts. */ + mdio_write(cphy, 0x1, 0x9002, 0x1); + + /* Enable Marvell interrupts through Elmer0. */ + if (t1_is_asic(cphy->adapter)) { + u32 elmer; + + t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer); + elmer |= ELMER0_GP_BIT6; + t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer); + } + return 0; +} + +static int mv88x201x_interrupt_disable(struct cphy *cphy) +{ + /* Disable PHY LASI interrupts. */ + mdio_write(cphy, 0x1, 0x9002, 0x0); + + /* Disable Marvell interrupts through Elmer0. */ + if (t1_is_asic(cphy->adapter)) { + u32 elmer; + + t1_tpi_read(cphy->adapter, A_ELMER0_INT_ENABLE, &elmer); + elmer &= ~ELMER0_GP_BIT6; + t1_tpi_write(cphy->adapter, A_ELMER0_INT_ENABLE, elmer); + } + return 0; +} + +static int mv88x201x_interrupt_clear(struct cphy *cphy) +{ + u32 elmer; + u32 val; + +#ifdef MV88x2010_LINK_STATUS_BUGS + /* Required to read twice before clear takes affect. */ + mdio_read(cphy, 0x1, 0x9003, &val); + mdio_read(cphy, 0x1, 0x9004, &val); + mdio_read(cphy, 0x1, 0x9005, &val); + + /* Read this register after the others above it else + * the register doesn't clear correctly. + */ + mdio_read(cphy, 0x1, 0x1, &val); +#endif + + /* Clear link status. */ + mdio_read(cphy, 0x1, 0x1, &val); + /* Clear PHY LASI interrupts. */ + mdio_read(cphy, 0x1, 0x9005, &val); + +#ifdef MV88x2010_LINK_STATUS_BUGS + /* Do it again. */ + mdio_read(cphy, 0x1, 0x9003, &val); + mdio_read(cphy, 0x1, 0x9004, &val); +#endif + + /* Clear Marvell interrupts through Elmer0. */ + if (t1_is_asic(cphy->adapter)) { + t1_tpi_read(cphy->adapter, A_ELMER0_INT_CAUSE, &elmer); + elmer |= ELMER0_GP_BIT6; + t1_tpi_write(cphy->adapter, A_ELMER0_INT_CAUSE, elmer); + } + return 0; +} + +static int mv88x201x_interrupt_handler(struct cphy *cphy) +{ + /* Clear interrupts */ + mv88x201x_interrupt_clear(cphy); + + /* We have only enabled link change interrupts and so + * cphy_cause must be a link change interrupt. + */ + return cphy_cause_link_change; +} + +static int mv88x201x_set_loopback(struct cphy *cphy, int on) +{ + return 0; +} + +static int mv88x201x_get_link_status(struct cphy *cphy, int *link_ok, + int *speed, int *duplex, int *fc) +{ + u32 val = 0; +#define LINK_STATUS_BIT 0x4 + + if (link_ok) { + /* Read link status. */ + mdio_read(cphy, 0x1, 0x1, &val); + val &= LINK_STATUS_BIT; + *link_ok = (val == LINK_STATUS_BIT); + /* Turn on/off Link LED */ + led_link(cphy, *link_ok); + } + if (speed) + *speed = SPEED_10000; + if (duplex) + *duplex = DUPLEX_FULL; + if (fc) + *fc = PAUSE_RX | PAUSE_TX; + return 0; +} + +static void mv88x201x_destroy(struct cphy *cphy) +{ + kfree(cphy); +} + +static struct cphy_ops mv88x201x_ops = { + .destroy = mv88x201x_destroy, + .reset = mv88x201x_reset, + .interrupt_enable = mv88x201x_interrupt_enable, + .interrupt_disable = mv88x201x_interrupt_disable, + .interrupt_clear = mv88x201x_interrupt_clear, + .interrupt_handler = mv88x201x_interrupt_handler, + .get_link_status = mv88x201x_get_link_status, + .set_loopback = mv88x201x_set_loopback, +}; + +static struct cphy *mv88x201x_phy_create(adapter_t *adapter, int phy_addr, + struct mdio_ops *mdio_ops) +{ + u32 val; + struct cphy *cphy = kmalloc(sizeof(*cphy), GFP_KERNEL); + + if (!cphy) + return NULL; + memset(cphy, 0, sizeof(*cphy)); + cphy_init(cphy, adapter, phy_addr, &mv88x201x_ops, mdio_ops); + + /* Commands the PHY to enable XFP's clock. */ + mdio_read(cphy, 0x3, 0x8300, &val); + mdio_write(cphy, 0x3, 0x8300, val | 1); + + /* Clear link status. Required because of a bug in the PHY. */ + mdio_read(cphy, 0x1, 0x8, &val); + mdio_read(cphy, 0x3, 0x8, &val); + + /* Allows for Link,Ack LED turn on/off */ + led_init(cphy); + return cphy; +} + +/* Chip Reset */ +static int mv88x201x_phy_reset(adapter_t *adapter) +{ + u32 val; + + t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~4; + t1_tpi_write(adapter, A_ELMER0_GPO, val); + msleep(100); + + t1_tpi_write(adapter, A_ELMER0_GPO, val | 4); + msleep(1000); + + /* Now lets enable the Laser. Delay 100us */ + t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val |= 0x8000; + t1_tpi_write(adapter, A_ELMER0_GPO, val); + udelay(100); + return 0; +} + +struct gphy t1_mv88x201x_ops = { + mv88x201x_phy_create, + mv88x201x_phy_reset +}; diff --git a/drivers/net/chelsio/osdep.h b/drivers/net/chelsio/osdep.h new file mode 100644 index 0000000..095cb47 --- /dev/null +++ b/drivers/net/chelsio/osdep.h @@ -0,0 +1,169 @@ +/***************************************************************************** + * * + * File: osdep.h * + * $Revision: 1.9 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef __CHELSIO_OSDEP_H +#define __CHELSIO_OSDEP_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cxgb2.h" + +#define DRV_NAME "cxgb" +#define PFX DRV_NAME ": " + +#define CH_ERR(fmt, ...) printk(KERN_ERR PFX fmt, ## __VA_ARGS__) +#define CH_WARN(fmt, ...) printk(KERN_WARNING PFX fmt, ## __VA_ARGS__) +#define CH_ALERT(fmt, ...) printk(KERN_ALERT PFX fmt, ## __VA_ARGS__) + +/* + * More powerful macro that selectively prints messages based on msg_enable. + * For info and debugging messages. + */ +#define CH_MSG(adapter, level, category, fmt, ...) do { \ + if ((adapter)->msg_enable & NETIF_MSG_##category) \ + printk(KERN_##level PFX "%s: " fmt, (adapter)->name, \ + ## __VA_ARGS__); \ +} while (0) + +#ifdef DEBUG +# define CH_DBG(adapter, category, fmt, ...) \ + CH_MSG(adapter, DEBUG, category, fmt, ## __VA_ARGS__) +#else +# define CH_DBG(fmt, ...) +#endif + +/* Additional NETIF_MSG_* categories */ +#define NETIF_MSG_MMIO 0x8000000 + +#define CH_DEVICE(devid, ssid, idx) \ + { PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, ssid, 0, 0, idx } + +#define SUPPORTED_PAUSE (1 << 13) +#define SUPPORTED_LOOPBACK (1 << 15) + +#define ADVERTISED_PAUSE (1 << 13) +#define ADVERTISED_ASYM_PAUSE (1 << 14) + +/* + * Now that we have included the driver's main data structure, + * we typedef it to something the rest of the system understands. + */ +typedef struct adapter adapter_t; + +#define TPI_LOCK(adapter) spin_lock(&(adapter)->tpi_lock) +#define TPI_UNLOCK(adapter) spin_unlock(&(adapter)->tpi_lock) + +void t1_elmer0_ext_intr(adapter_t *adapter); +void t1_link_changed(adapter_t *adapter, int port_id, int link_status, + int speed, int duplex, int fc); + +static inline u16 t1_read_reg_2(adapter_t *adapter, u32 reg_addr) +{ + u16 val = readw(adapter->regs + reg_addr); + + CH_DBG(adapter, MMIO, "read register 0x%x value 0x%x\n", reg_addr, + val); + return val; +} + +static inline void t1_write_reg_2(adapter_t *adapter, u32 reg_addr, u16 val) +{ + CH_DBG(adapter, MMIO, "setting register 0x%x to 0x%x\n", reg_addr, + val); + writew(val, adapter->regs + reg_addr); +} + +static inline u32 t1_read_reg_4(adapter_t *adapter, u32 reg_addr) +{ + u32 val = readl(adapter->regs + reg_addr); + + CH_DBG(adapter, MMIO, "read register 0x%x value 0x%x\n", reg_addr, + val); + return val; +} + +static inline void t1_write_reg_4(adapter_t *adapter, u32 reg_addr, u32 val) +{ + CH_DBG(adapter, MMIO, "setting register 0x%x to 0x%x\n", reg_addr, + val); + writel(val, adapter->regs + reg_addr); +} + +static inline const char *port_name(adapter_t *adapter, int port_idx) +{ + return adapter->port[port_idx].dev->name; +} + +static inline void t1_set_hw_addr(adapter_t *adapter, int port_idx, + u8 hw_addr[]) +{ + memcpy(adapter->port[port_idx].dev->dev_addr, hw_addr, ETH_ALEN); +} + +struct t1_rx_mode { + struct net_device *dev; + u32 idx; + struct dev_mc_list *list; +}; + +#define t1_rx_mode_promisc(rm) (rm->dev->flags & IFF_PROMISC) +#define t1_rx_mode_allmulti(rm) (rm->dev->flags & IFF_ALLMULTI) +#define t1_rx_mode_mc_cnt(rm) (rm->dev->mc_count) + +static inline u8 *t1_get_next_mcaddr(struct t1_rx_mode *rm) +{ + u8 *addr = 0; + + if (rm->idx++ < rm->dev->mc_count) { + addr = rm->list->dmi_addr; + rm->list = rm->list->next; + } + return addr; +} + +#endif diff --git a/drivers/net/chelsio/pm3393.c b/drivers/net/chelsio/pm3393.c new file mode 100644 index 0000000..17bd20f --- /dev/null +++ b/drivers/net/chelsio/pm3393.c @@ -0,0 +1,831 @@ +/***************************************************************************** + * * + * File: pm3393.c * + * $Revision: 1.9 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * PMC/SIERRA (pm3393) MAC-PHY functionality. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" +#include "regs.h" +#include "gmac.h" +#include "elmer0.h" +#include "suni1x10gexp_regs.h" + +/* 802.3ae 10Gb/s MDIO Manageable Device(MMD) + */ +#define MMD_RESERVED 0 +#define MMD_PMAPMD 1 +#define MMD_WIS 2 +#define MMD_PCS 3 +#define MMD_PHY_XGXS 4 /* XGMII Extender Sublayer */ +#define MMD_DTE_XGXS 5 + +#define PHY_XGXS_CTRL_1 0 +#define PHY_XGXS_STATUS_1 1 + +#define OFFSET(REG_ADDR) (REG_ADDR << 2) + +/* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */ +#define MAX_FRAME_SIZE 9600 + +#define IPG 12 +#define TXXG_CONF1_VAL ((IPG << SUNI1x10GEXP_BITOFF_TXXG_IPGT) | \ + SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN | SUNI1x10GEXP_BITMSK_TXXG_CRCEN | \ + SUNI1x10GEXP_BITMSK_TXXG_PADEN) +#define RXXG_CONF1_VAL (SUNI1x10GEXP_BITMSK_RXXG_PUREP | 0x14 | \ + SUNI1x10GEXP_BITMSK_RXXG_FLCHK | SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP) + +/* Update statistics every 15 minutes */ +#define STATS_TICK_SECS (15 * 60) + +enum { /* RMON registers */ + RxOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW, + RxUnicastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW, + RxMulticastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW, + RxBroadcastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW, + RxPAUSEMACCtrlFramesReceived = SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW, + RxFrameCheckSequenceErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW, + RxFramesLostDueToInternalMACErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW, + RxSymbolErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW, + RxInRangeLengthErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW, + RxFramesTooLongErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW, + RxJabbers = SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW, + RxFragments = SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW, + RxUndersizedFrames = SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW, + + TxOctetsTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW, + TxFramesLostDueToInternalMACTransmissionError = SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW, + TxTransmitSystemError = SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW, + TxUnicastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW, + TxMulticastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW, + TxBroadcastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW, + TxPAUSEMACCtrlFramesTransmitted = SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW +}; + +struct _cmac_instance { + u8 enabled; + u8 fc; + u8 mac_addr[6]; +}; + +static int pmread(struct cmac *cmac, u32 reg, u32 * data32) +{ + t1_tpi_read(cmac->adapter, OFFSET(reg), data32); + return 0; +} + +static int pmwrite(struct cmac *cmac, u32 reg, u32 data32) +{ + t1_tpi_write(cmac->adapter, OFFSET(reg), data32); + return 0; +} + +/* Port reset. */ +static int pm3393_reset(struct cmac *cmac) +{ + return 0; +} + +/* + * Enable interrupts for the PM3393 + + 1. Enable PM3393 BLOCK interrupts. + 2. Enable PM3393 Master Interrupt bit(INTE) + 3. Enable ELMER's PM3393 bit. + 4. Enable Terminator external interrupt. +*/ +static int pm3393_interrupt_enable(struct cmac *cmac) +{ + u32 pl_intr; + + /* PM3393 - Enabling all hardware block interrupts. + */ + pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0xffff); + + /* Don't interrupt on statistics overflow, we are polling */ + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0); + + pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0xffff); + + /* PM3393 - Global interrupt enable + */ + /* TBD XXX Disable for now until we figure out why error interrupts keep asserting. */ + pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, + 0 /*SUNI1x10GEXP_BITMSK_TOP_INTE */ ); + + /* TERMINATOR - PL_INTERUPTS_EXT */ + pl_intr = t1_read_reg_4(cmac->adapter, A_PL_ENABLE); + pl_intr |= F_PL_INTR_EXT; + t1_write_reg_4(cmac->adapter, A_PL_ENABLE, pl_intr); + return 0; +} + +static int pm3393_interrupt_disable(struct cmac *cmac) +{ + u32 elmer; + + /* PM3393 - Enabling HW interrupt blocks. */ + pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0); + pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0); + + /* PM3393 - Global interrupt enable */ + pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, 0); + + /* ELMER - External chip interrupts. */ + t1_tpi_read(cmac->adapter, A_ELMER0_INT_ENABLE, &elmer); + elmer &= ~ELMER0_GP_BIT1; + t1_tpi_write(cmac->adapter, A_ELMER0_INT_ENABLE, elmer); + + /* TERMINATOR - PL_INTERUPTS_EXT */ + /* DO NOT DISABLE TERMINATOR's EXTERNAL INTERRUPTS. ANOTHER CHIP + * COULD WANT THEM ENABLED. We disable PM3393 at the ELMER level. + */ + + return 0; +} + +static int pm3393_interrupt_clear(struct cmac *cmac) +{ + u32 elmer; + u32 pl_intr; + u32 val32; + + /* PM3393 - Clearing HW interrupt blocks. Note, this assumes + * bit WCIMODE=0 for a clear-on-read. + */ + pmread(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT, &val32); + pmread(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT, &val32); + pmread(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_RXXG_INTERRUPT, &val32); + pmread(cmac, SUNI1x10GEXP_REG_TXXG_INTERRUPT, &val32); + pmread(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT, &val32); + pmread(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION, + &val32); + pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS, &val32); + pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE, &val32); + + /* PM3393 - Global interrupt status + */ + pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, &val32); + + /* ELMER - External chip interrupts. + */ + t1_tpi_read(cmac->adapter, A_ELMER0_INT_CAUSE, &elmer); + elmer |= ELMER0_GP_BIT1; + t1_tpi_write(cmac->adapter, A_ELMER0_INT_CAUSE, elmer); + + /* TERMINATOR - PL_INTERUPTS_EXT + */ + pl_intr = t1_read_reg_4(cmac->adapter, A_PL_CAUSE); + pl_intr |= F_PL_INTR_EXT; + t1_write_reg_4(cmac->adapter, A_PL_CAUSE, pl_intr); + + return 0; +} + +/* Interrupt handler */ +static int pm3393_interrupt_handler(struct cmac *cmac) +{ + u32 master_intr_status; +/* + 1. Read master interrupt register. + 2. Read BLOCK's interrupt status registers. + 3. Handle BLOCK interrupts. +*/ + /* Read the master interrupt status register. */ + pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, + &master_intr_status); + CH_DBG(cmac->adapter, INTR, "PM3393 intr cause 0x%x\n", + master_intr_status); + + /* TBD XXX Lets just clear everything for now */ + pm3393_interrupt_clear(cmac); + + return 0; +} + +static int pm3393_enable(struct cmac *cmac, int which) +{ + if (which & MAC_DIRECTION_RX) + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, + (RXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_RXXG_RXEN)); + + if (which & MAC_DIRECTION_TX) { + u32 val = TXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_TXXG_TXEN0; + + if (cmac->instance->fc & PAUSE_RX) + val |= SUNI1x10GEXP_BITMSK_TXXG_FCRX; + if (cmac->instance->fc & PAUSE_TX) + val |= SUNI1x10GEXP_BITMSK_TXXG_FCTX; + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, val); + } + + cmac->instance->enabled |= which; + return 0; +} + +static int pm3393_enable_port(struct cmac *cmac, int which) +{ + /* Clear port statistics */ + pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_CONTROL, + SUNI1x10GEXP_BITMSK_MSTAT_CLEAR); + udelay(2); + memset(&cmac->stats, 0, sizeof(struct cmac_statistics)); + + pm3393_enable(cmac, which); + + /* + * XXX This should be done by the PHY and preferrably not at all. + * The PHY doesn't give us link status indication on its own so have + * the link management code query it instead. + */ + { + extern void link_changed(adapter_t *adapter, int port_id); + + link_changed(cmac->adapter, 0); + } + return 0; +} + +static int pm3393_disable(struct cmac *cmac, int which) +{ + if (which & MAC_DIRECTION_RX) + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, RXXG_CONF1_VAL); + if (which & MAC_DIRECTION_TX) + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, TXXG_CONF1_VAL); + + /* + * The disable is graceful. Give the PM3393 time. Can't wait very + * long here, we may be holding locks. + */ + udelay(20); + + cmac->instance->enabled &= ~which; + return 0; +} + +static int pm3393_loopback_enable(struct cmac *cmac) +{ + return 0; +} + +static int pm3393_loopback_disable(struct cmac *cmac) +{ + return 0; +} + +static int pm3393_set_mtu(struct cmac *cmac, int mtu) +{ + int enabled = cmac->instance->enabled; + + /* MAX_FRAME_SIZE includes header + FCS, mtu doesn't */ + mtu += 14 + 4; + if (mtu > MAX_FRAME_SIZE) + return -EINVAL; + + /* Disable Rx/Tx MAC before configuring it. */ + if (enabled) + pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); + + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH, mtu); + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE, mtu); + + if (enabled) + pm3393_enable(cmac, enabled); + return 0; +} + +static u32 calc_crc(u8 *b, int len) +{ + int i; + u32 crc = (u32)~0; + + /* calculate crc one bit at a time */ + while (len--) { + crc ^= *b++; + for (i = 0; i < 8; i++) { + if (crc & 0x1) + crc = (crc >> 1) ^ 0xedb88320; + else + crc = (crc >> 1); + } + } + + /* reverse bits */ + crc = ((crc >> 4) & 0x0f0f0f0f) | ((crc << 4) & 0xf0f0f0f0); + crc = ((crc >> 2) & 0x33333333) | ((crc << 2) & 0xcccccccc); + crc = ((crc >> 1) & 0x55555555) | ((crc << 1) & 0xaaaaaaaa); + /* swap bytes */ + crc = (crc >> 16) | (crc << 16); + crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00); + + return crc; +} + +static int pm3393_set_rx_mode(struct cmac *cmac, struct t1_rx_mode *rm) +{ + int enabled = cmac->instance->enabled & MAC_DIRECTION_RX; + u32 rx_mode; + + /* Disable MAC RX before reconfiguring it */ + if (enabled) + pm3393_disable(cmac, MAC_DIRECTION_RX); + + pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, &rx_mode); + rx_mode &= ~(SUNI1x10GEXP_BITMSK_RXXG_PMODE | + SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, + (u16)rx_mode); + + if (t1_rx_mode_promisc(rm)) { + /* Promiscuous mode. */ + rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_PMODE; + } + if (t1_rx_mode_allmulti(rm)) { + /* Accept all multicast. */ + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, 0xffff); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, 0xffff); + rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN; + } else if (t1_rx_mode_mc_cnt(rm)) { + /* Accept one or more multicast(s). */ + u8 *addr; + int bit; + u16 mc_filter[4] = { 0, }; + + while ((addr = t1_get_next_mcaddr(rm))) { + bit = (calc_crc(addr, ETH_ALEN) >> 23) & 0x3f; /* bit[23:28] */ + mc_filter[bit >> 4] |= 1 << (bit & 0xf); + } + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, mc_filter[0]); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, mc_filter[1]); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, mc_filter[2]); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, mc_filter[3]); + rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN; + } + + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, (u16)rx_mode); + + if (enabled) + pm3393_enable(cmac, MAC_DIRECTION_RX); + + return 0; +} + +static int pm3393_get_speed_duplex_fc(struct cmac *cmac, int *speed, + int *duplex, int *fc) +{ + if (speed) + *speed = SPEED_10000; + if (duplex) + *duplex = DUPLEX_FULL; + if (fc) + *fc = cmac->instance->fc; + return 0; +} + +static int pm3393_set_speed_duplex_fc(struct cmac *cmac, int speed, int duplex, + int fc) +{ + if (speed >= 0 && speed != SPEED_10000) + return -1; + if (duplex >= 0 && duplex != DUPLEX_FULL) + return -1; + if (fc & ~(PAUSE_TX | PAUSE_RX)) + return -1; + + if (fc != cmac->instance->fc) { + cmac->instance->fc = (u8) fc; + if (cmac->instance->enabled & MAC_DIRECTION_TX) + pm3393_enable(cmac, MAC_DIRECTION_TX); + } + return 0; +} + +#define RMON_UPDATE(mac, name, stat_name) \ + { \ + t1_tpi_read((mac)->adapter, OFFSET(name), &val0); \ + t1_tpi_read((mac)->adapter, OFFSET(((name)+1)), &val1); \ + t1_tpi_read((mac)->adapter, OFFSET(((name)+2)), &val2); \ + (mac)->stats.stat_name = ((u64)val0 & 0xffff) | \ + (((u64)val1 & 0xffff) << 16) | \ + (((u64)val2 & 0xff) << 32) | \ + ((mac)->stats.stat_name & \ + (~(u64)0 << 40)); \ + if (ro & \ + ((name - SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW) >> 2)) \ + (mac)->stats.stat_name += ((u64)1 << 40); \ + } + +static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac, + int flag) +{ + u64 ro; + u32 val0, val1, val2, val3; + + /* Snap the counters */ + pmwrite(mac, SUNI1x10GEXP_REG_MSTAT_CONTROL, + SUNI1x10GEXP_BITMSK_MSTAT_SNAP); + + /* Counter rollover, clear on read */ + pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0, &val0); + pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1, &val1); + pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2, &val2); + pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3, &val3); + ro = ((u64)val0 & 0xffff) | (((u64)val1 & 0xffff) << 16) | + (((u64)val2 & 0xffff) << 32) | (((u64)val3 & 0xffff) << 48); + + /* Rx stats */ + RMON_UPDATE(mac, RxOctetsReceivedOK, RxOctetsOK); + RMON_UPDATE(mac, RxUnicastFramesReceivedOK, RxUnicastFramesOK); + RMON_UPDATE(mac, RxMulticastFramesReceivedOK, RxMulticastFramesOK); + RMON_UPDATE(mac, RxBroadcastFramesReceivedOK, RxBroadcastFramesOK); + RMON_UPDATE(mac, RxPAUSEMACCtrlFramesReceived, RxPauseFrames); + RMON_UPDATE(mac, RxFrameCheckSequenceErrors, RxFCSErrors); + RMON_UPDATE(mac, RxFramesLostDueToInternalMACErrors, + RxInternalMACRcvError); + RMON_UPDATE(mac, RxSymbolErrors, RxSymbolErrors); + RMON_UPDATE(mac, RxInRangeLengthErrors, RxInRangeLengthErrors); + RMON_UPDATE(mac, RxFramesTooLongErrors , RxFrameTooLongErrors); + RMON_UPDATE(mac, RxJabbers, RxJabberErrors); + RMON_UPDATE(mac, RxFragments, RxRuntErrors); + RMON_UPDATE(mac, RxUndersizedFrames, RxRuntErrors); + + /* Tx stats */ + RMON_UPDATE(mac, TxOctetsTransmittedOK, TxOctetsOK); + RMON_UPDATE(mac, TxFramesLostDueToInternalMACTransmissionError, + TxInternalMACXmitError); + RMON_UPDATE(mac, TxTransmitSystemError, TxFCSErrors); + RMON_UPDATE(mac, TxUnicastFramesTransmittedOK, TxUnicastFramesOK); + RMON_UPDATE(mac, TxMulticastFramesTransmittedOK, TxMulticastFramesOK); + RMON_UPDATE(mac, TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK); + RMON_UPDATE(mac, TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames); + + return &mac->stats; +} + +static int pm3393_macaddress_get(struct cmac *cmac, u8 mac_addr[6]) +{ + memcpy(mac_addr, cmac->instance->mac_addr, 6); + return 0; +} + +static int pm3393_macaddress_set(struct cmac *cmac, u8 ma[6]) +{ + u32 val, lo, mid, hi, enabled = cmac->instance->enabled; + + /* + * MAC addr: 00:07:43:00:13:09 + * + * ma[5] = 0x09 + * ma[4] = 0x13 + * ma[3] = 0x00 + * ma[2] = 0x43 + * ma[1] = 0x07 + * ma[0] = 0x00 + * + * The PM3393 requires byte swapping and reverse order entry + * when programming MAC addresses: + * + * low_bits[15:0] = ma[1]:ma[0] + * mid_bits[31:16] = ma[3]:ma[2] + * high_bits[47:32] = ma[5]:ma[4] + */ + + /* Store local copy */ + memcpy(cmac->instance->mac_addr, ma, 6); + + lo = ((u32) ma[1] << 8) | (u32) ma[0]; + mid = ((u32) ma[3] << 8) | (u32) ma[2]; + hi = ((u32) ma[5] << 8) | (u32) ma[4]; + + /* Disable Rx/Tx MAC before configuring it. */ + if (enabled) + pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); + + /* Set RXXG Station Address */ + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_15_0, lo); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_31_16, mid); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_47_32, hi); + + /* Set TXXG Station Address */ + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_15_0, lo); + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_31_16, mid); + pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_47_32, hi); + + /* Setup Exact Match Filter 1 with our MAC address + * + * Must disable exact match filter before configuring it. + */ + pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, &val); + val &= 0xff0f; + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val); + + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW, lo); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID, mid); + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH, hi); + + val |= 0x0090; + pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val); + + if (enabled) + pm3393_enable(cmac, enabled); + return 0; +} + +static void pm3393_destroy(struct cmac *cmac) +{ + kfree(cmac); +} + +static struct cmac_ops pm3393_ops = { + .destroy = pm3393_destroy, + .reset = pm3393_reset, + .interrupt_enable = pm3393_interrupt_enable, + .interrupt_disable = pm3393_interrupt_disable, + .interrupt_clear = pm3393_interrupt_clear, + .interrupt_handler = pm3393_interrupt_handler, + .enable = pm3393_enable_port, + .disable = pm3393_disable, + .loopback_enable = pm3393_loopback_enable, + .loopback_disable = pm3393_loopback_disable, + .set_mtu = pm3393_set_mtu, + .set_rx_mode = pm3393_set_rx_mode, + .get_speed_duplex_fc = pm3393_get_speed_duplex_fc, + .set_speed_duplex_fc = pm3393_set_speed_duplex_fc, + .statistics_update = pm3393_update_statistics, + .macaddress_get = pm3393_macaddress_get, + .macaddress_set = pm3393_macaddress_set +}; + +static struct cmac *pm3393_mac_create(adapter_t *adapter, int index) +{ + struct cmac *cmac; + + cmac = kmalloc(sizeof(*cmac) + sizeof(cmac_instance), GFP_KERNEL); + if (!cmac) + return NULL; + memset(cmac, 0, sizeof(*cmac)); + + cmac->ops = &pm3393_ops; + cmac->instance = (cmac_instance *) (cmac + 1); + cmac->adapter = adapter; + cmac->instance->fc = PAUSE_TX | PAUSE_RX; + + t1_tpi_write(adapter, OFFSET(0x0001), 0x00008000); + t1_tpi_write(adapter, OFFSET(0x0001), 0x00000000); + t1_tpi_write(adapter, OFFSET(0x2308), 0x00009800); + t1_tpi_write(adapter, OFFSET(0x2305), 0x00001001); /* PL4IO Enable */ + t1_tpi_write(adapter, OFFSET(0x2320), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2321), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2322), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2323), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2324), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2325), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2326), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2327), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2328), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x2329), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232a), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232b), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232c), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232d), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232e), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x232f), 0x00008800); + t1_tpi_write(adapter, OFFSET(0x230d), 0x00009c00); + t1_tpi_write(adapter, OFFSET(0x2304), 0x00000202); /* PL4IO Calendar Repetitions */ + + t1_tpi_write(adapter, OFFSET(0x3200), 0x00008080); /* EFLX Enable */ + t1_tpi_write(adapter, OFFSET(0x3210), 0x00000000); /* EFLX Channel Deprovision */ + t1_tpi_write(adapter, OFFSET(0x3203), 0x00000000); /* EFLX Low Limit */ + t1_tpi_write(adapter, OFFSET(0x3204), 0x00000040); /* EFLX High Limit */ + t1_tpi_write(adapter, OFFSET(0x3205), 0x000002cc); /* EFLX Almost Full */ + t1_tpi_write(adapter, OFFSET(0x3206), 0x00000199); /* EFLX Almost Empty */ + t1_tpi_write(adapter, OFFSET(0x3207), 0x00000240); /* EFLX Cut Through Threshold */ + t1_tpi_write(adapter, OFFSET(0x3202), 0x00000000); /* EFLX Indirect Register Update */ + t1_tpi_write(adapter, OFFSET(0x3210), 0x00000001); /* EFLX Channel Provision */ + t1_tpi_write(adapter, OFFSET(0x3208), 0x0000ffff); /* EFLX Undocumented */ + t1_tpi_write(adapter, OFFSET(0x320a), 0x0000ffff); /* EFLX Undocumented */ + t1_tpi_write(adapter, OFFSET(0x320c), 0x0000ffff); /* EFLX enable overflow interrupt The other bit are undocumented */ + t1_tpi_write(adapter, OFFSET(0x320e), 0x0000ffff); /* EFLX Undocumented */ + + t1_tpi_write(adapter, OFFSET(0x2200), 0x0000c000); /* IFLX Configuration - enable */ + t1_tpi_write(adapter, OFFSET(0x2201), 0x00000000); /* IFLX Channel Deprovision */ + t1_tpi_write(adapter, OFFSET(0x220e), 0x00000000); /* IFLX Low Limit */ + t1_tpi_write(adapter, OFFSET(0x220f), 0x00000100); /* IFLX High Limit */ + t1_tpi_write(adapter, OFFSET(0x2210), 0x00000c00); /* IFLX Almost Full Limit */ + t1_tpi_write(adapter, OFFSET(0x2211), 0x00000599); /* IFLX Almost Empty Limit */ + t1_tpi_write(adapter, OFFSET(0x220d), 0x00000000); /* IFLX Indirect Register Update */ + t1_tpi_write(adapter, OFFSET(0x2201), 0x00000001); /* IFLX Channel Provision */ + t1_tpi_write(adapter, OFFSET(0x2203), 0x0000ffff); /* IFLX Undocumented */ + t1_tpi_write(adapter, OFFSET(0x2205), 0x0000ffff); /* IFLX Undocumented */ + t1_tpi_write(adapter, OFFSET(0x2209), 0x0000ffff); /* IFLX Enable overflow interrupt. The other bit are undocumented */ + + t1_tpi_write(adapter, OFFSET(0x2241), 0xfffffffe); /* PL4MOS Undocumented */ + t1_tpi_write(adapter, OFFSET(0x2242), 0x0000ffff); /* PL4MOS Undocumented */ + t1_tpi_write(adapter, OFFSET(0x2243), 0x00000008); /* PL4MOS Starving Burst Size */ + t1_tpi_write(adapter, OFFSET(0x2244), 0x00000008); /* PL4MOS Hungry Burst Size */ + t1_tpi_write(adapter, OFFSET(0x2245), 0x00000008); /* PL4MOS Transfer Size */ + t1_tpi_write(adapter, OFFSET(0x2240), 0x00000005); /* PL4MOS Disable */ + + t1_tpi_write(adapter, OFFSET(0x2280), 0x00002103); /* PL4ODP Training Repeat and SOP rule */ + t1_tpi_write(adapter, OFFSET(0x2284), 0x00000000); /* PL4ODP MAX_T setting */ + + t1_tpi_write(adapter, OFFSET(0x3280), 0x00000087); /* PL4IDU Enable data forward, port state machine. Set ALLOW_NON_ZERO_OLB */ + t1_tpi_write(adapter, OFFSET(0x3282), 0x0000001f); /* PL4IDU Enable Dip4 check error interrupts */ + + t1_tpi_write(adapter, OFFSET(0x3040), 0x0c32); /* # TXXG Config */ + /* For T1 use timer based Mac flow control. */ + if (t1_is_T1B(adapter)) + t1_tpi_write(adapter, OFFSET(0x304d), 0x8000); + t1_tpi_write(adapter, OFFSET(0x2040), 0x059c); /* # RXXG Config */ + t1_tpi_write(adapter, OFFSET(0x2049), 0x0000); /* # RXXG Cut Through */ + t1_tpi_write(adapter, OFFSET(0x2070), 0x0000); /* # Disable promiscuous mode */ + + /* Setup Exact Match Filter 0 to allow broadcast packets. + */ + t1_tpi_write(adapter, OFFSET(0x206e), 0x0000); /* # Disable Match Enable bit */ + t1_tpi_write(adapter, OFFSET(0x204a), 0xffff); /* # low addr */ + t1_tpi_write(adapter, OFFSET(0x204b), 0xffff); /* # mid addr */ + t1_tpi_write(adapter, OFFSET(0x204c), 0xffff); /* # high addr */ + t1_tpi_write(adapter, OFFSET(0x206e), 0x0009); /* # Enable Match Enable bit */ + + t1_tpi_write(adapter, OFFSET(0x0003), 0x0000); /* # NO SOP/ PAD_EN setup */ + t1_tpi_write(adapter, OFFSET(0x0100), 0x0ff0); /* # RXEQB disabled */ + t1_tpi_write(adapter, OFFSET(0x0101), 0x0f0f); /* # No Preemphasis */ + + return cmac; +} + +static int pm3393_mac_reset(adapter_t * adapter) +{ + u32 val; + u32 x; + u32 is_pl4_reset_finished; + u32 is_pl4_outof_lock; + u32 is_xaui_mabc_pll_locked; + u32 successful_reset; + int i; + + /* The following steps are required to properly reset + * the PM3393. This information is provided in the + * PM3393 datasheet (Issue 2: November 2002) + * section 13.1 -- Device Reset. + * + * The PM3393 has three types of components that are + * individually reset: + * + * DRESETB - Digital circuitry + * PL4_ARESETB - PL4 analog circuitry + * XAUI_ARESETB - XAUI bus analog circuitry + * + * Steps to reset PM3393 using RSTB pin: + * + * 1. Assert RSTB pin low ( write 0 ) + * 2. Wait at least 1ms to initiate a complete initialization of device. + * 3. Wait until all external clocks and REFSEL are stable. + * 4. Wait minimum of 1ms. (after external clocks and REFEL are stable) + * 5. De-assert RSTB ( write 1 ) + * 6. Wait until internal timers to expires after ~14ms. + * - Allows analog clock synthesizer(PL4CSU) to stabilize to + * selected reference frequency before allowing the digital + * portion of the device to operate. + * 7. Wait at least 200us for XAUI interface to stabilize. + * 8. Verify the PM3393 came out of reset successfully. + * Set successful reset flag if everything worked else try again + * a few more times. + */ + + successful_reset = 0; + for (i = 0; i < 3 && !successful_reset; i++) { + /* 1 */ + t1_tpi_read(adapter, A_ELMER0_GPO, &val); + val &= ~1; + t1_tpi_write(adapter, A_ELMER0_GPO, val); + + /* 2 */ + msleep(1); + + /* 3 */ + msleep(1); + + /* 4 */ + msleep(2 /*1 extra ms for safety */ ); + + /* 5 */ + val |= 1; + t1_tpi_write(adapter, A_ELMER0_GPO, val); + + /* 6 */ + msleep(15 /*1 extra ms for safety */ ); + + /* 7 */ + msleep(1); + + /* 8 */ + + /* Has PL4 analog block come out of reset correctly? */ + t1_tpi_read(adapter, OFFSET(SUNI1x10GEXP_REG_DEVICE_STATUS), &val); + is_pl4_reset_finished = (val & SUNI1x10GEXP_BITMSK_TOP_EXPIRED); + + /* TBD XXX SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL gets locked later in the init sequence + * figure out why? */ + + /* Have all PL4 block clocks locked? */ + x = (SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL + /*| SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL */ | + SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL | + SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL | + SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL); + is_pl4_outof_lock = (val & x); + + /* ??? If this fails, might be able to software reset the XAUI part + * and try to recover... thus saving us from doing another HW reset */ + /* Has the XAUI MABC PLL circuitry stablized? */ + is_xaui_mabc_pll_locked = + (val & SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED); + + successful_reset = (is_pl4_reset_finished && !is_pl4_outof_lock + && is_xaui_mabc_pll_locked); + + CH_DBG(adapter, HW, + "PM3393 HW reset %d: pl4_reset 0x%x, val 0x%x, " + "is_pl4_outof_lock 0x%x, xaui_locked 0x%x\n", + i, is_pl4_reset_finished, val, is_pl4_outof_lock, + is_xaui_mabc_pll_locked); + } + return successful_reset ? 0 : 1; +} + +struct gmac t1_pm3393_ops = { + STATS_TICK_SECS, + pm3393_mac_create, + pm3393_mac_reset +}; diff --git a/drivers/net/chelsio/regs.h b/drivers/net/chelsio/regs.h new file mode 100644 index 0000000..5a70803 --- /dev/null +++ b/drivers/net/chelsio/regs.h @@ -0,0 +1,453 @@ +/***************************************************************************** + * * + * File: regs.h * + * $Revision: 1.4 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +/* Do not edit this file */ + +/* SGE registers */ +#define A_SG_CONTROL 0x0 + +#define S_CMDQ0_ENABLE 0 +#define V_CMDQ0_ENABLE(x) ((x) << S_CMDQ0_ENABLE) +#define F_CMDQ0_ENABLE V_CMDQ0_ENABLE(1U) + +#define S_CMDQ1_ENABLE 1 +#define V_CMDQ1_ENABLE(x) ((x) << S_CMDQ1_ENABLE) +#define F_CMDQ1_ENABLE V_CMDQ1_ENABLE(1U) + +#define S_FL0_ENABLE 2 +#define V_FL0_ENABLE(x) ((x) << S_FL0_ENABLE) +#define F_FL0_ENABLE V_FL0_ENABLE(1U) + +#define S_FL1_ENABLE 3 +#define V_FL1_ENABLE(x) ((x) << S_FL1_ENABLE) +#define F_FL1_ENABLE V_FL1_ENABLE(1U) + +#define S_CPL_ENABLE 4 +#define V_CPL_ENABLE(x) ((x) << S_CPL_ENABLE) +#define F_CPL_ENABLE V_CPL_ENABLE(1U) + +#define S_RESPONSE_QUEUE_ENABLE 5 +#define V_RESPONSE_QUEUE_ENABLE(x) ((x) << S_RESPONSE_QUEUE_ENABLE) +#define F_RESPONSE_QUEUE_ENABLE V_RESPONSE_QUEUE_ENABLE(1U) + +#define S_CMDQ_PRIORITY 6 +#define M_CMDQ_PRIORITY 0x3 +#define V_CMDQ_PRIORITY(x) ((x) << S_CMDQ_PRIORITY) +#define G_CMDQ_PRIORITY(x) (((x) >> S_CMDQ_PRIORITY) & M_CMDQ_PRIORITY) + +#define S_DISABLE_CMDQ1_GTS 9 +#define V_DISABLE_CMDQ1_GTS(x) ((x) << S_DISABLE_CMDQ1_GTS) +#define F_DISABLE_CMDQ1_GTS V_DISABLE_CMDQ1_GTS(1U) + +#define S_ENABLE_BIG_ENDIAN 12 +#define V_ENABLE_BIG_ENDIAN(x) ((x) << S_ENABLE_BIG_ENDIAN) +#define F_ENABLE_BIG_ENDIAN V_ENABLE_BIG_ENDIAN(1U) + +#define S_ISCSI_COALESCE 14 +#define V_ISCSI_COALESCE(x) ((x) << S_ISCSI_COALESCE) +#define F_ISCSI_COALESCE V_ISCSI_COALESCE(1U) + +#define S_RX_PKT_OFFSET 15 +#define V_RX_PKT_OFFSET(x) ((x) << S_RX_PKT_OFFSET) + +#define S_VLAN_XTRACT 18 +#define V_VLAN_XTRACT(x) ((x) << S_VLAN_XTRACT) +#define F_VLAN_XTRACT V_VLAN_XTRACT(1U) + +#define A_SG_DOORBELL 0x4 +#define A_SG_CMD0BASELWR 0x8 +#define A_SG_CMD0BASEUPR 0xc +#define A_SG_CMD1BASELWR 0x10 +#define A_SG_CMD1BASEUPR 0x14 +#define A_SG_FL0BASELWR 0x18 +#define A_SG_FL0BASEUPR 0x1c +#define A_SG_FL1BASELWR 0x20 +#define A_SG_FL1BASEUPR 0x24 +#define A_SG_CMD0SIZE 0x28 +#define A_SG_FL0SIZE 0x2c +#define A_SG_RSPSIZE 0x30 +#define A_SG_RSPBASELWR 0x34 +#define A_SG_RSPBASEUPR 0x38 +#define A_SG_FLTHRESHOLD 0x3c +#define A_SG_RSPQUEUECREDIT 0x40 +#define A_SG_SLEEPING 0x48 +#define A_SG_INTRTIMER 0x4c +#define A_SG_CMD1SIZE 0xb0 +#define A_SG_FL1SIZE 0xb4 +#define A_SG_INT_ENABLE 0xb8 + +#define S_RESPQ_EXHAUSTED 0 +#define V_RESPQ_EXHAUSTED(x) ((x) << S_RESPQ_EXHAUSTED) +#define F_RESPQ_EXHAUSTED V_RESPQ_EXHAUSTED(1U) + +#define S_RESPQ_OVERFLOW 1 +#define V_RESPQ_OVERFLOW(x) ((x) << S_RESPQ_OVERFLOW) +#define F_RESPQ_OVERFLOW V_RESPQ_OVERFLOW(1U) + +#define S_FL_EXHAUSTED 2 +#define V_FL_EXHAUSTED(x) ((x) << S_FL_EXHAUSTED) +#define F_FL_EXHAUSTED V_FL_EXHAUSTED(1U) + +#define S_PACKET_TOO_BIG 3 +#define V_PACKET_TOO_BIG(x) ((x) << S_PACKET_TOO_BIG) +#define F_PACKET_TOO_BIG V_PACKET_TOO_BIG(1U) + +#define S_PACKET_MISMATCH 4 +#define V_PACKET_MISMATCH(x) ((x) << S_PACKET_MISMATCH) +#define F_PACKET_MISMATCH V_PACKET_MISMATCH(1U) + +#define A_SG_INT_CAUSE 0xbc + +/* MC3 registers */ + +#define S_READY 1 +#define V_READY(x) ((x) << S_READY) +#define F_READY V_READY(1U) + +/* MC4 registers */ + +#define A_MC4_CFG 0x180 +#define S_MC4_SLOW 25 +#define V_MC4_SLOW(x) ((x) << S_MC4_SLOW) +#define F_MC4_SLOW V_MC4_SLOW(1U) + +/* TPI registers */ + +#define A_TPI_ADDR 0x280 +#define A_TPI_WR_DATA 0x284 +#define A_TPI_RD_DATA 0x288 +#define A_TPI_CSR 0x28c + +#define S_TPIWR 0 +#define V_TPIWR(x) ((x) << S_TPIWR) +#define F_TPIWR V_TPIWR(1U) + +#define S_TPIRDY 1 +#define V_TPIRDY(x) ((x) << S_TPIRDY) +#define F_TPIRDY V_TPIRDY(1U) + +#define A_TPI_PAR 0x29c + +#define S_TPIPAR 0 +#define M_TPIPAR 0x7f +#define V_TPIPAR(x) ((x) << S_TPIPAR) +#define G_TPIPAR(x) (((x) >> S_TPIPAR) & M_TPIPAR) + +/* TP registers */ + +#define A_TP_IN_CONFIG 0x300 + +#define S_TP_IN_CSPI_CPL 3 +#define V_TP_IN_CSPI_CPL(x) ((x) << S_TP_IN_CSPI_CPL) +#define F_TP_IN_CSPI_CPL V_TP_IN_CSPI_CPL(1U) + +#define S_TP_IN_CSPI_CHECK_IP_CSUM 5 +#define V_TP_IN_CSPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_IP_CSUM) +#define F_TP_IN_CSPI_CHECK_IP_CSUM V_TP_IN_CSPI_CHECK_IP_CSUM(1U) + +#define S_TP_IN_CSPI_CHECK_TCP_CSUM 6 +#define V_TP_IN_CSPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_CSPI_CHECK_TCP_CSUM) +#define F_TP_IN_CSPI_CHECK_TCP_CSUM V_TP_IN_CSPI_CHECK_TCP_CSUM(1U) + +#define S_TP_IN_ESPI_ETHERNET 8 +#define V_TP_IN_ESPI_ETHERNET(x) ((x) << S_TP_IN_ESPI_ETHERNET) +#define F_TP_IN_ESPI_ETHERNET V_TP_IN_ESPI_ETHERNET(1U) + +#define S_TP_IN_ESPI_CHECK_IP_CSUM 12 +#define V_TP_IN_ESPI_CHECK_IP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_IP_CSUM) +#define F_TP_IN_ESPI_CHECK_IP_CSUM V_TP_IN_ESPI_CHECK_IP_CSUM(1U) + +#define S_TP_IN_ESPI_CHECK_TCP_CSUM 13 +#define V_TP_IN_ESPI_CHECK_TCP_CSUM(x) ((x) << S_TP_IN_ESPI_CHECK_TCP_CSUM) +#define F_TP_IN_ESPI_CHECK_TCP_CSUM V_TP_IN_ESPI_CHECK_TCP_CSUM(1U) + +#define S_OFFLOAD_DISABLE 14 +#define V_OFFLOAD_DISABLE(x) ((x) << S_OFFLOAD_DISABLE) +#define F_OFFLOAD_DISABLE V_OFFLOAD_DISABLE(1U) + +#define A_TP_OUT_CONFIG 0x304 + +#define S_TP_OUT_CSPI_CPL 2 +#define V_TP_OUT_CSPI_CPL(x) ((x) << S_TP_OUT_CSPI_CPL) +#define F_TP_OUT_CSPI_CPL V_TP_OUT_CSPI_CPL(1U) + +#define S_TP_OUT_ESPI_ETHERNET 6 +#define V_TP_OUT_ESPI_ETHERNET(x) ((x) << S_TP_OUT_ESPI_ETHERNET) +#define F_TP_OUT_ESPI_ETHERNET V_TP_OUT_ESPI_ETHERNET(1U) + +#define S_TP_OUT_ESPI_GENERATE_IP_CSUM 10 +#define V_TP_OUT_ESPI_GENERATE_IP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_IP_CSUM) +#define F_TP_OUT_ESPI_GENERATE_IP_CSUM V_TP_OUT_ESPI_GENERATE_IP_CSUM(1U) + +#define S_TP_OUT_ESPI_GENERATE_TCP_CSUM 11 +#define V_TP_OUT_ESPI_GENERATE_TCP_CSUM(x) ((x) << S_TP_OUT_ESPI_GENERATE_TCP_CSUM) +#define F_TP_OUT_ESPI_GENERATE_TCP_CSUM V_TP_OUT_ESPI_GENERATE_TCP_CSUM(1U) + +#define A_TP_GLOBAL_CONFIG 0x308 + +#define S_IP_TTL 0 +#define M_IP_TTL 0xff +#define V_IP_TTL(x) ((x) << S_IP_TTL) + +#define S_TCP_CSUM 11 +#define V_TCP_CSUM(x) ((x) << S_TCP_CSUM) +#define F_TCP_CSUM V_TCP_CSUM(1U) + +#define S_UDP_CSUM 12 +#define V_UDP_CSUM(x) ((x) << S_UDP_CSUM) +#define F_UDP_CSUM V_UDP_CSUM(1U) + +#define S_IP_CSUM 13 +#define V_IP_CSUM(x) ((x) << S_IP_CSUM) +#define F_IP_CSUM V_IP_CSUM(1U) + +#define S_PATH_MTU 15 +#define V_PATH_MTU(x) ((x) << S_PATH_MTU) +#define F_PATH_MTU V_PATH_MTU(1U) + +#define S_5TUPLE_LOOKUP 17 +#define V_5TUPLE_LOOKUP(x) ((x) << S_5TUPLE_LOOKUP) + +#define S_SYN_COOKIE_PARAMETER 26 +#define V_SYN_COOKIE_PARAMETER(x) ((x) << S_SYN_COOKIE_PARAMETER) + +#define A_TP_PC_CONFIG 0x348 +#define S_TP_PC_REV 30 +#define M_TP_PC_REV 0x3 +#define G_TP_PC_REV(x) (((x) >> S_TP_PC_REV) & M_TP_PC_REV) +#define A_TP_RESET 0x44c +#define S_TP_RESET 0 +#define V_TP_RESET(x) ((x) << S_TP_RESET) +#define F_TP_RESET V_TP_RESET(1U) + +#define A_TP_INT_ENABLE 0x470 +#define A_TP_INT_CAUSE 0x474 +#define A_TP_TX_DROP_CONFIG 0x4b8 + +#define S_ENABLE_TX_DROP 31 +#define V_ENABLE_TX_DROP(x) ((x) << S_ENABLE_TX_DROP) +#define F_ENABLE_TX_DROP V_ENABLE_TX_DROP(1U) + +#define S_ENABLE_TX_ERROR 30 +#define V_ENABLE_TX_ERROR(x) ((x) << S_ENABLE_TX_ERROR) +#define F_ENABLE_TX_ERROR V_ENABLE_TX_ERROR(1U) + +#define S_DROP_TICKS_CNT 4 +#define V_DROP_TICKS_CNT(x) ((x) << S_DROP_TICKS_CNT) + +#define S_NUM_PKTS_DROPPED 0 +#define V_NUM_PKTS_DROPPED(x) ((x) << S_NUM_PKTS_DROPPED) + +/* CSPI registers */ + +#define S_DIP4ERR 0 +#define V_DIP4ERR(x) ((x) << S_DIP4ERR) +#define F_DIP4ERR V_DIP4ERR(1U) + +#define S_RXDROP 1 +#define V_RXDROP(x) ((x) << S_RXDROP) +#define F_RXDROP V_RXDROP(1U) + +#define S_TXDROP 2 +#define V_TXDROP(x) ((x) << S_TXDROP) +#define F_TXDROP V_TXDROP(1U) + +#define S_RXOVERFLOW 3 +#define V_RXOVERFLOW(x) ((x) << S_RXOVERFLOW) +#define F_RXOVERFLOW V_RXOVERFLOW(1U) + +#define S_RAMPARITYERR 4 +#define V_RAMPARITYERR(x) ((x) << S_RAMPARITYERR) +#define F_RAMPARITYERR V_RAMPARITYERR(1U) + +/* ESPI registers */ + +#define A_ESPI_SCH_TOKEN0 0x880 +#define A_ESPI_SCH_TOKEN1 0x884 +#define A_ESPI_SCH_TOKEN2 0x888 +#define A_ESPI_SCH_TOKEN3 0x88c +#define A_ESPI_RX_FIFO_ALMOST_EMPTY_WATERMARK 0x890 +#define A_ESPI_RX_FIFO_ALMOST_FULL_WATERMARK 0x894 +#define A_ESPI_CALENDAR_LENGTH 0x898 +#define A_PORT_CONFIG 0x89c + +#define S_RX_NPORTS 0 +#define V_RX_NPORTS(x) ((x) << S_RX_NPORTS) + +#define S_TX_NPORTS 8 +#define V_TX_NPORTS(x) ((x) << S_TX_NPORTS) + +#define A_ESPI_FIFO_STATUS_ENABLE 0x8a0 + +#define S_RXSTATUSENABLE 0 +#define V_RXSTATUSENABLE(x) ((x) << S_RXSTATUSENABLE) +#define F_RXSTATUSENABLE V_RXSTATUSENABLE(1U) + +#define S_INTEL1010MODE 4 +#define V_INTEL1010MODE(x) ((x) << S_INTEL1010MODE) +#define F_INTEL1010MODE V_INTEL1010MODE(1U) + +#define A_ESPI_MAXBURST1_MAXBURST2 0x8a8 +#define A_ESPI_TRAIN 0x8ac +#define A_ESPI_INTR_STATUS 0x8c8 + +#define S_DIP2PARITYERR 5 +#define V_DIP2PARITYERR(x) ((x) << S_DIP2PARITYERR) +#define F_DIP2PARITYERR V_DIP2PARITYERR(1U) + +#define A_ESPI_INTR_ENABLE 0x8cc +#define A_RX_DROP_THRESHOLD 0x8d0 +#define A_ESPI_RX_RESET 0x8ec +#define A_ESPI_MISC_CONTROL 0x8f0 + +#define S_OUT_OF_SYNC_COUNT 0 +#define V_OUT_OF_SYNC_COUNT(x) ((x) << S_OUT_OF_SYNC_COUNT) + +#define S_DIP2_PARITY_ERR_THRES 5 +#define V_DIP2_PARITY_ERR_THRES(x) ((x) << S_DIP2_PARITY_ERR_THRES) + +#define S_DIP4_THRES 9 +#define V_DIP4_THRES(x) ((x) << S_DIP4_THRES) + +#define S_MONITORED_PORT_NUM 25 +#define V_MONITORED_PORT_NUM(x) ((x) << S_MONITORED_PORT_NUM) + +#define S_MONITORED_DIRECTION 27 +#define V_MONITORED_DIRECTION(x) ((x) << S_MONITORED_DIRECTION) +#define F_MONITORED_DIRECTION V_MONITORED_DIRECTION(1U) + +#define S_MONITORED_INTERFACE 28 +#define V_MONITORED_INTERFACE(x) ((x) << S_MONITORED_INTERFACE) +#define F_MONITORED_INTERFACE V_MONITORED_INTERFACE(1U) + +#define A_ESPI_DIP2_ERR_COUNT 0x8f4 +#define A_ESPI_CMD_ADDR 0x8f8 + +#define S_WRITE_DATA 0 +#define V_WRITE_DATA(x) ((x) << S_WRITE_DATA) + +#define S_REGISTER_OFFSET 8 +#define V_REGISTER_OFFSET(x) ((x) << S_REGISTER_OFFSET) + +#define S_CHANNEL_ADDR 12 +#define V_CHANNEL_ADDR(x) ((x) << S_CHANNEL_ADDR) + +#define S_MODULE_ADDR 16 +#define V_MODULE_ADDR(x) ((x) << S_MODULE_ADDR) + +#define S_BUNDLE_ADDR 20 +#define V_BUNDLE_ADDR(x) ((x) << S_BUNDLE_ADDR) + +#define S_SPI4_COMMAND 24 +#define V_SPI4_COMMAND(x) ((x) << S_SPI4_COMMAND) + +#define A_ESPI_GOSTAT 0x8fc +#define S_ESPI_CMD_BUSY 8 +#define V_ESPI_CMD_BUSY(x) ((x) << S_ESPI_CMD_BUSY) +#define F_ESPI_CMD_BUSY V_ESPI_CMD_BUSY(1U) + +/* PL registers */ + +#define A_PL_ENABLE 0xa00 + +#define S_PL_INTR_SGE_ERR 0 +#define V_PL_INTR_SGE_ERR(x) ((x) << S_PL_INTR_SGE_ERR) +#define F_PL_INTR_SGE_ERR V_PL_INTR_SGE_ERR(1U) + +#define S_PL_INTR_SGE_DATA 1 +#define V_PL_INTR_SGE_DATA(x) ((x) << S_PL_INTR_SGE_DATA) +#define F_PL_INTR_SGE_DATA V_PL_INTR_SGE_DATA(1U) + +#define S_PL_INTR_TP 6 +#define V_PL_INTR_TP(x) ((x) << S_PL_INTR_TP) +#define F_PL_INTR_TP V_PL_INTR_TP(1U) + +#define S_PL_INTR_ESPI 8 +#define V_PL_INTR_ESPI(x) ((x) << S_PL_INTR_ESPI) +#define F_PL_INTR_ESPI V_PL_INTR_ESPI(1U) + +#define S_PL_INTR_PCIX 10 +#define V_PL_INTR_PCIX(x) ((x) << S_PL_INTR_PCIX) +#define F_PL_INTR_PCIX V_PL_INTR_PCIX(1U) + +#define S_PL_INTR_EXT 11 +#define V_PL_INTR_EXT(x) ((x) << S_PL_INTR_EXT) +#define F_PL_INTR_EXT V_PL_INTR_EXT(1U) + +#define A_PL_CAUSE 0xa04 + +/* MC5 registers */ + +#define A_MC5_CONFIG 0xc04 + +#define S_TCAM_RESET 1 +#define V_TCAM_RESET(x) ((x) << S_TCAM_RESET) +#define F_TCAM_RESET V_TCAM_RESET(1U) + +#define S_M_BUS_ENABLE 5 +#define V_M_BUS_ENABLE(x) ((x) << S_M_BUS_ENABLE) +#define F_M_BUS_ENABLE V_M_BUS_ENABLE(1U) + +/* PCICFG registers */ + +#define A_PCICFG_PM_CSR 0x44 +#define A_PCICFG_VPD_ADDR 0x4a + +#define S_VPD_OP_FLAG 15 +#define V_VPD_OP_FLAG(x) ((x) << S_VPD_OP_FLAG) +#define F_VPD_OP_FLAG V_VPD_OP_FLAG(1U) + +#define A_PCICFG_VPD_DATA 0x4c + +#define A_PCICFG_INTR_ENABLE 0xf4 +#define A_PCICFG_INTR_CAUSE 0xf8 + +#define A_PCICFG_MODE 0xfc + +#define S_PCI_MODE_64BIT 0 +#define V_PCI_MODE_64BIT(x) ((x) << S_PCI_MODE_64BIT) +#define F_PCI_MODE_64BIT V_PCI_MODE_64BIT(1U) + +#define S_PCI_MODE_PCIX 5 +#define V_PCI_MODE_PCIX(x) ((x) << S_PCI_MODE_PCIX) +#define F_PCI_MODE_PCIX V_PCI_MODE_PCIX(1U) + +#define S_PCI_MODE_CLK 6 +#define M_PCI_MODE_CLK 0x3 +#define G_PCI_MODE_CLK(x) (((x) >> S_PCI_MODE_CLK) & M_PCI_MODE_CLK) + diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c new file mode 100644 index 0000000..bcf8b1e --- /dev/null +++ b/drivers/net/chelsio/sge.c @@ -0,0 +1,1451 @@ +/***************************************************************************** + * * + * File: sge.c * + * $Revision: 1.13 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * DMA engine. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "cpl5_cmd.h" +#include "sge.h" +#include "regs.h" +#include "espi.h" + +#include + +#define SGE_CMDQ_N 2 +#define SGE_FREELQ_N 2 +#define SGE_CMDQ0_E_N 512 +#define SGE_CMDQ1_E_N 128 +#define SGE_FREEL_SIZE 4096 +#define SGE_JUMBO_FREEL_SIZE 512 +#define SGE_FREEL_REFILL_THRESH 16 +#define SGE_RESPQ_E_N 1024 +#define SGE_INTR_BUCKETSIZE 100 +#define SGE_INTR_LATBUCKETS 5 +#define SGE_INTR_MAXBUCKETS 11 +#define SGE_INTRTIMER0 1 +#define SGE_INTRTIMER1 50 +#define SGE_INTRTIMER_NRES 10000 +#define SGE_RX_COPY_THRESHOLD 256 +#define SGE_RX_SM_BUF_SIZE 1536 + +#define SGE_RESPQ_REPLENISH_THRES ((3 * SGE_RESPQ_E_N) / 4) + +#define SGE_RX_OFFSET 2 +#ifndef NET_IP_ALIGN +# define NET_IP_ALIGN SGE_RX_OFFSET +#endif + +/* + * Memory Mapped HW Command, Freelist and Response Queue Descriptors + */ +#if defined(__BIG_ENDIAN_BITFIELD) +struct cmdQ_e { + u32 AddrLow; + u32 GenerationBit : 1; + u32 BufferLength : 31; + u32 RespQueueSelector : 4; + u32 ResponseTokens : 12; + u32 CmdId : 8; + u32 Reserved : 3; + u32 TokenValid : 1; + u32 Eop : 1; + u32 Sop : 1; + u32 DataValid : 1; + u32 GenerationBit2 : 1; + u32 AddrHigh; +}; + +struct freelQ_e { + u32 AddrLow; + u32 GenerationBit : 1; + u32 BufferLength : 31; + u32 Reserved : 31; + u32 GenerationBit2 : 1; + u32 AddrHigh; +}; + +struct respQ_e { + u32 Qsleeping : 4; + u32 Cmdq1CreditReturn : 5; + u32 Cmdq1DmaComplete : 5; + u32 Cmdq0CreditReturn : 5; + u32 Cmdq0DmaComplete : 5; + u32 FreelistQid : 2; + u32 CreditValid : 1; + u32 DataValid : 1; + u32 Offload : 1; + u32 Eop : 1; + u32 Sop : 1; + u32 GenerationBit : 1; + u32 BufferLength; +}; + +#elif defined(__LITTLE_ENDIAN_BITFIELD) +struct cmdQ_e { + u32 BufferLength : 31; + u32 GenerationBit : 1; + u32 AddrLow; + u32 AddrHigh; + u32 GenerationBit2 : 1; + u32 DataValid : 1; + u32 Sop : 1; + u32 Eop : 1; + u32 TokenValid : 1; + u32 Reserved : 3; + u32 CmdId : 8; + u32 ResponseTokens : 12; + u32 RespQueueSelector : 4; +}; + +struct freelQ_e { + u32 BufferLength : 31; + u32 GenerationBit : 1; + u32 AddrLow; + u32 AddrHigh; + u32 GenerationBit2 : 1; + u32 Reserved : 31; +}; + +struct respQ_e { + u32 BufferLength; + u32 GenerationBit : 1; + u32 Sop : 1; + u32 Eop : 1; + u32 Offload : 1; + u32 DataValid : 1; + u32 CreditValid : 1; + u32 FreelistQid : 2; + u32 Cmdq0DmaComplete : 5; + u32 Cmdq0CreditReturn : 5; + u32 Cmdq1DmaComplete : 5; + u32 Cmdq1CreditReturn : 5; + u32 Qsleeping : 4; +} ; +#endif + +/* + * SW Context Command and Freelist Queue Descriptors + */ +struct cmdQ_ce { + struct sk_buff *skb; + DECLARE_PCI_UNMAP_ADDR(dma_addr); + DECLARE_PCI_UNMAP_LEN(dma_len); + unsigned int single; +}; + +struct freelQ_ce { + struct sk_buff *skb; + DECLARE_PCI_UNMAP_ADDR(dma_addr); + DECLARE_PCI_UNMAP_LEN(dma_len); +}; + +/* + * SW Command, Freelist and Response Queue + */ +struct cmdQ { + atomic_t asleep; /* HW DMA Fetch status */ + atomic_t credits; /* # available descriptors for TX */ + atomic_t pio_pidx; /* Variable updated on Doorbell */ + u16 entries_n; /* # descriptors for TX */ + u16 pidx; /* producer index (SW) */ + u16 cidx; /* consumer index (HW) */ + u8 genbit; /* current generation (=valid) bit */ + struct cmdQ_e *entries; /* HW command descriptor Q */ + struct cmdQ_ce *centries; /* SW command context descriptor Q */ + spinlock_t Qlock; /* Lock to protect cmdQ enqueuing */ + dma_addr_t dma_addr; /* DMA addr HW command descriptor Q */ +}; + +struct freelQ { + unsigned int credits; /* # of available RX buffers */ + unsigned int entries_n; /* free list capacity */ + u16 pidx; /* producer index (SW) */ + u16 cidx; /* consumer index (HW) */ + u16 rx_buffer_size; /* Buffer size on this free list */ + u16 dma_offset; /* DMA offset to align IP headers */ + u8 genbit; /* current generation (=valid) bit */ + struct freelQ_e *entries; /* HW freelist descriptor Q */ + struct freelQ_ce *centries; /* SW freelist conext descriptor Q */ + dma_addr_t dma_addr; /* DMA addr HW freelist descriptor Q */ +}; + +struct respQ { + u16 credits; /* # of available respQ descriptors */ + u16 credits_pend; /* # of not yet returned descriptors */ + u16 entries_n; /* # of response Q descriptors */ + u16 pidx; /* producer index (HW) */ + u16 cidx; /* consumer index (SW) */ + u8 genbit; /* current generation(=valid) bit */ + struct respQ_e *entries; /* HW response descriptor Q */ + dma_addr_t dma_addr; /* DMA addr HW response descriptor Q */ +}; + +/* + * Main SGE data structure + * + * Interrupts are handled by a single CPU and it is likely that on a MP system + * the application is migrated to another CPU. In that scenario, we try to + * seperate the RX(in irq context) and TX state in order to decrease memory + * contention. + */ +struct sge { + struct adapter *adapter; /* adapter backpointer */ + struct freelQ freelQ[SGE_FREELQ_N]; /* freelist Q(s) */ + struct respQ respQ; /* response Q instatiation */ + unsigned int rx_pkt_pad; /* RX padding for L2 packets */ + unsigned int jumbo_fl; /* jumbo freelist Q index */ + u32 intrtimer[SGE_INTR_MAXBUCKETS]; /* ! */ + u32 currIndex; /* current index into intrtimer[] */ + u32 intrtimer_nres; /* no resource interrupt timer value */ + u32 sge_control; /* shadow content of sge control reg */ + struct sge_intr_counts intr_cnt; + struct timer_list ptimer; + struct sk_buff *pskb; + u32 ptimeout; + struct cmdQ cmdQ[SGE_CMDQ_N] ____cacheline_aligned; /* command Q(s)*/ +}; + +static unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter, + unsigned int qid); + +/* + * PIO to indicate that memory mapped Q contains valid descriptor(s). + */ +static inline void doorbell_pio(struct sge *sge, u32 val) +{ + wmb(); + t1_write_reg_4(sge->adapter, A_SG_DOORBELL, val); +} + +/* + * Disables the DMA engine. + */ +void t1_sge_stop(struct sge *sge) +{ + t1_write_reg_4(sge->adapter, A_SG_CONTROL, 0); + t1_read_reg_4(sge->adapter, A_SG_CONTROL); /* flush write */ + if (is_T2(sge->adapter)) + del_timer_sync(&sge->ptimer); +} + +static u8 ch_mac_addr[ETH_ALEN] = {0x0, 0x7, 0x43, 0x0, 0x0, 0x0}; +static void t1_espi_workaround(void *data) +{ + struct adapter *adapter = (struct adapter *)data; + struct sge *sge = adapter->sge; + + if (netif_running(adapter->port[0].dev) && + atomic_read(&sge->cmdQ[0].asleep)) { + + u32 seop = t1_espi_get_mon(adapter, 0x930, 0); + + if ((seop & 0xfff0fff) == 0xfff && sge->pskb) { + struct sk_buff *skb = sge->pskb; + if (!skb->cb[0]) { + memcpy(skb->data+sizeof(struct cpl_tx_pkt), ch_mac_addr, ETH_ALEN); + memcpy(skb->data+skb->len-10, ch_mac_addr, ETH_ALEN); + + skb->cb[0] = 0xff; + } + t1_sge_tx(skb, adapter,0); + } + } + mod_timer(&adapter->sge->ptimer, jiffies + sge->ptimeout); +} + +/* + * Enables the DMA engine. + */ +void t1_sge_start(struct sge *sge) +{ + t1_write_reg_4(sge->adapter, A_SG_CONTROL, sge->sge_control); + t1_read_reg_4(sge->adapter, A_SG_CONTROL); /* flush write */ + if (is_T2(sge->adapter)) { + init_timer(&sge->ptimer); + sge->ptimer.function = (void *)&t1_espi_workaround; + sge->ptimer.data = (unsigned long)sge->adapter; + sge->ptimer.expires = jiffies + sge->ptimeout; + add_timer(&sge->ptimer); + } +} + +/* + * Creates a t1_sge structure and returns suggested resource parameters. + */ +struct sge * __devinit t1_sge_create(struct adapter *adapter, + struct sge_params *p) +{ + struct sge *sge = kmalloc(sizeof(*sge), GFP_KERNEL); + + if (!sge) + return NULL; + memset(sge, 0, sizeof(*sge)); + + if (is_T2(adapter)) + sge->ptimeout = 1; /* finest allowed */ + + sge->adapter = adapter; + sge->rx_pkt_pad = t1_is_T1B(adapter) ? 0 : SGE_RX_OFFSET; + sge->jumbo_fl = t1_is_T1B(adapter) ? 1 : 0; + + p->cmdQ_size[0] = SGE_CMDQ0_E_N; + p->cmdQ_size[1] = SGE_CMDQ1_E_N; + p->freelQ_size[!sge->jumbo_fl] = SGE_FREEL_SIZE; + p->freelQ_size[sge->jumbo_fl] = SGE_JUMBO_FREEL_SIZE; + p->rx_coalesce_usecs = SGE_INTRTIMER1; + p->last_rx_coalesce_raw = SGE_INTRTIMER1 * + (board_info(sge->adapter)->clock_core / 1000000); + p->default_rx_coalesce_usecs = SGE_INTRTIMER1; + p->coalesce_enable = 0; /* Turn off adaptive algorithm by default */ + p->sample_interval_usecs = 0; + return sge; +} + +/* + * Frees all RX buffers on the freelist Q. The caller must make sure that + * the SGE is turned off before calling this function. + */ +static void free_freelQ_buffers(struct pci_dev *pdev, struct freelQ *Q) +{ + unsigned int cidx = Q->cidx, credits = Q->credits; + + while (credits--) { + struct freelQ_ce *ce = &Q->centries[cidx]; + + pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr), + pci_unmap_len(ce, dma_len), + PCI_DMA_FROMDEVICE); + dev_kfree_skb(ce->skb); + ce->skb = NULL; + if (++cidx == Q->entries_n) + cidx = 0; + } +} + +/* + * Free RX free list and response queue resources. + */ +static void free_rx_resources(struct sge *sge) +{ + struct pci_dev *pdev = sge->adapter->pdev; + unsigned int size, i; + + if (sge->respQ.entries) { + size = sizeof(struct respQ_e) * sge->respQ.entries_n; + pci_free_consistent(pdev, size, sge->respQ.entries, + sge->respQ.dma_addr); + } + + for (i = 0; i < SGE_FREELQ_N; i++) { + struct freelQ *Q = &sge->freelQ[i]; + + if (Q->centries) { + free_freelQ_buffers(pdev, Q); + kfree(Q->centries); + } + if (Q->entries) { + size = sizeof(struct freelQ_e) * Q->entries_n; + pci_free_consistent(pdev, size, Q->entries, + Q->dma_addr); + } + } +} + +/* + * Allocates basic RX resources, consisting of memory mapped freelist Qs and a + * response Q. + */ +static int alloc_rx_resources(struct sge *sge, struct sge_params *p) +{ + struct pci_dev *pdev = sge->adapter->pdev; + unsigned int size, i; + + for (i = 0; i < SGE_FREELQ_N; i++) { + struct freelQ *Q = &sge->freelQ[i]; + + Q->genbit = 1; + Q->entries_n = p->freelQ_size[i]; + Q->dma_offset = SGE_RX_OFFSET - sge->rx_pkt_pad; + size = sizeof(struct freelQ_e) * Q->entries_n; + Q->entries = (struct freelQ_e *) + pci_alloc_consistent(pdev, size, &Q->dma_addr); + if (!Q->entries) + goto err_no_mem; + memset(Q->entries, 0, size); + Q->centries = kcalloc(Q->entries_n, sizeof(struct freelQ_ce), + GFP_KERNEL); + if (!Q->centries) + goto err_no_mem; + } + + /* + * Calculate the buffer sizes for the two free lists. FL0 accommodates + * regular sized Ethernet frames, FL1 is sized not to exceed 16K, + * including all the sk_buff overhead. + * + * Note: For T2 FL0 and FL1 are reversed. + */ + sge->freelQ[!sge->jumbo_fl].rx_buffer_size = SGE_RX_SM_BUF_SIZE + + sizeof(struct cpl_rx_data) + + sge->freelQ[!sge->jumbo_fl].dma_offset; + sge->freelQ[sge->jumbo_fl].rx_buffer_size = (16 * 1024) - + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + + sge->respQ.genbit = 1; + sge->respQ.entries_n = SGE_RESPQ_E_N; + sge->respQ.credits = SGE_RESPQ_E_N; + size = sizeof(struct respQ_e) * sge->respQ.entries_n; + sge->respQ.entries = (struct respQ_e *) + pci_alloc_consistent(pdev, size, &sge->respQ.dma_addr); + if (!sge->respQ.entries) + goto err_no_mem; + memset(sge->respQ.entries, 0, size); + return 0; + +err_no_mem: + free_rx_resources(sge); + return -ENOMEM; +} + +/* + * Frees 'credits_pend' TX buffers and returns the credits to Q->credits. + * + * The adaptive algorithm receives the total size of the buffers freed + * accumulated in @*totpayload. No initialization of this argument here. + * + */ +static void free_cmdQ_buffers(struct sge *sge, struct cmdQ *Q, + unsigned int credits_pend, unsigned int *totpayload) +{ + struct pci_dev *pdev = sge->adapter->pdev; + struct sk_buff *skb; + struct cmdQ_ce *ce, *cq = Q->centries; + unsigned int entries_n = Q->entries_n, cidx = Q->cidx, + i = credits_pend; + + + ce = &cq[cidx]; + while (i--) { + if (ce->single) + pci_unmap_single(pdev, pci_unmap_addr(ce, dma_addr), + pci_unmap_len(ce, dma_len), + PCI_DMA_TODEVICE); + else + pci_unmap_page(pdev, pci_unmap_addr(ce, dma_addr), + pci_unmap_len(ce, dma_len), + PCI_DMA_TODEVICE); + if (totpayload) + *totpayload += pci_unmap_len(ce, dma_len); + + skb = ce->skb; + if (skb) + dev_kfree_skb_irq(skb); + + ce++; + if (++cidx == entries_n) { + cidx = 0; + ce = cq; + } + } + + Q->cidx = cidx; + atomic_add(credits_pend, &Q->credits); +} + +/* + * Free TX resources. + * + * Assumes that SGE is stopped and all interrupts are disabled. + */ +static void free_tx_resources(struct sge *sge) +{ + struct pci_dev *pdev = sge->adapter->pdev; + unsigned int size, i; + + for (i = 0; i < SGE_CMDQ_N; i++) { + struct cmdQ *Q = &sge->cmdQ[i]; + + if (Q->centries) { + unsigned int pending = Q->entries_n - + atomic_read(&Q->credits); + + if (pending) + free_cmdQ_buffers(sge, Q, pending, NULL); + kfree(Q->centries); + } + if (Q->entries) { + size = sizeof(struct cmdQ_e) * Q->entries_n; + pci_free_consistent(pdev, size, Q->entries, + Q->dma_addr); + } + } +} + +/* + * Allocates basic TX resources, consisting of memory mapped command Qs. + */ +static int alloc_tx_resources(struct sge *sge, struct sge_params *p) +{ + struct pci_dev *pdev = sge->adapter->pdev; + unsigned int size, i; + + for (i = 0; i < SGE_CMDQ_N; i++) { + struct cmdQ *Q = &sge->cmdQ[i]; + + Q->genbit = 1; + Q->entries_n = p->cmdQ_size[i]; + atomic_set(&Q->credits, Q->entries_n); + atomic_set(&Q->asleep, 1); + spin_lock_init(&Q->Qlock); + size = sizeof(struct cmdQ_e) * Q->entries_n; + Q->entries = (struct cmdQ_e *) + pci_alloc_consistent(pdev, size, &Q->dma_addr); + if (!Q->entries) + goto err_no_mem; + memset(Q->entries, 0, size); + Q->centries = kcalloc(Q->entries_n, sizeof(struct cmdQ_ce), + GFP_KERNEL); + if (!Q->centries) + goto err_no_mem; + } + + return 0; + +err_no_mem: + free_tx_resources(sge); + return -ENOMEM; +} + +static inline void setup_ring_params(struct adapter *adapter, u64 addr, + u32 size, int base_reg_lo, + int base_reg_hi, int size_reg) +{ + t1_write_reg_4(adapter, base_reg_lo, (u32)addr); + t1_write_reg_4(adapter, base_reg_hi, addr >> 32); + t1_write_reg_4(adapter, size_reg, size); +} + +/* + * Enable/disable VLAN acceleration. + */ +void t1_set_vlan_accel(struct adapter *adapter, int on_off) +{ + struct sge *sge = adapter->sge; + + sge->sge_control &= ~F_VLAN_XTRACT; + if (on_off) + sge->sge_control |= F_VLAN_XTRACT; + if (adapter->open_device_map) { + t1_write_reg_4(adapter, A_SG_CONTROL, sge->sge_control); + t1_read_reg_4(adapter, A_SG_CONTROL); /* flush */ + } +} + +/* + * Sets the interrupt latency timer when the adaptive Rx coalescing + * is turned off. Do nothing when it is turned on again. + * + * This routine relies on the fact that the caller has already set + * the adaptive policy in adapter->sge_params before calling it. +*/ +int t1_sge_set_coalesce_params(struct sge *sge, struct sge_params *p) +{ + if (!p->coalesce_enable) { + u32 newTimer = p->rx_coalesce_usecs * + (board_info(sge->adapter)->clock_core / 1000000); + + t1_write_reg_4(sge->adapter, A_SG_INTRTIMER, newTimer); + } + return 0; +} + +/* + * Programs the various SGE registers. However, the engine is not yet enabled, + * but sge->sge_control is setup and ready to go. + */ +static void configure_sge(struct sge *sge, struct sge_params *p) +{ + struct adapter *ap = sge->adapter; + int i; + + t1_write_reg_4(ap, A_SG_CONTROL, 0); + setup_ring_params(ap, sge->cmdQ[0].dma_addr, sge->cmdQ[0].entries_n, + A_SG_CMD0BASELWR, A_SG_CMD0BASEUPR, A_SG_CMD0SIZE); + setup_ring_params(ap, sge->cmdQ[1].dma_addr, sge->cmdQ[1].entries_n, + A_SG_CMD1BASELWR, A_SG_CMD1BASEUPR, A_SG_CMD1SIZE); + setup_ring_params(ap, sge->freelQ[0].dma_addr, + sge->freelQ[0].entries_n, A_SG_FL0BASELWR, + A_SG_FL0BASEUPR, A_SG_FL0SIZE); + setup_ring_params(ap, sge->freelQ[1].dma_addr, + sge->freelQ[1].entries_n, A_SG_FL1BASELWR, + A_SG_FL1BASEUPR, A_SG_FL1SIZE); + + /* The threshold comparison uses <. */ + t1_write_reg_4(ap, A_SG_FLTHRESHOLD, SGE_RX_SM_BUF_SIZE + 1); + + setup_ring_params(ap, sge->respQ.dma_addr, sge->respQ.entries_n, + A_SG_RSPBASELWR, A_SG_RSPBASEUPR, A_SG_RSPSIZE); + t1_write_reg_4(ap, A_SG_RSPQUEUECREDIT, (u32)sge->respQ.entries_n); + + sge->sge_control = F_CMDQ0_ENABLE | F_CMDQ1_ENABLE | F_FL0_ENABLE | + F_FL1_ENABLE | F_CPL_ENABLE | F_RESPONSE_QUEUE_ENABLE | + V_CMDQ_PRIORITY(2) | F_DISABLE_CMDQ1_GTS | F_ISCSI_COALESCE | + V_RX_PKT_OFFSET(sge->rx_pkt_pad); + +#if defined(__BIG_ENDIAN_BITFIELD) + sge->sge_control |= F_ENABLE_BIG_ENDIAN; +#endif + + /* + * Initialize the SGE Interrupt Timer arrray: + * intrtimer[0] = (SGE_INTRTIMER0) usec + * intrtimer[0intrtimer[0] = board_info(sge->adapter)->clock_core / 1000000; + for (i = 1; i < SGE_INTR_LATBUCKETS; ++i) { + sge->intrtimer[i] = SGE_INTRTIMER0 + (2 * i); + sge->intrtimer[i] *= sge->intrtimer[0]; + } + for (i = SGE_INTR_LATBUCKETS; i < SGE_INTR_MAXBUCKETS - 1; ++i) { + sge->intrtimer[i] = (i - 3) * 6; + sge->intrtimer[i] *= sge->intrtimer[0]; + } + sge->intrtimer[SGE_INTR_MAXBUCKETS - 1] = + sge->intrtimer[0] * SGE_INTRTIMER1; + /* Initialize resource timer */ + sge->intrtimer_nres = sge->intrtimer[0] * SGE_INTRTIMER_NRES; + /* Finally finish initialization of intrtimer[0] */ + sge->intrtimer[0] *= SGE_INTRTIMER0; + /* Initialize for a throughput oriented workload */ + sge->currIndex = SGE_INTR_MAXBUCKETS - 1; + + if (p->coalesce_enable) + t1_write_reg_4(ap, A_SG_INTRTIMER, + sge->intrtimer[sge->currIndex]); + else + t1_sge_set_coalesce_params(sge, p); +} + +/* + * Return the payload capacity of the jumbo free-list buffers. + */ +static inline unsigned int jumbo_payload_capacity(const struct sge *sge) +{ + return sge->freelQ[sge->jumbo_fl].rx_buffer_size - + sizeof(struct cpl_rx_data) - SGE_RX_OFFSET + sge->rx_pkt_pad; +} + +/* + * Allocates both RX and TX resources and configures the SGE. However, + * the hardware is not enabled yet. + */ +int t1_sge_configure(struct sge *sge, struct sge_params *p) +{ + if (alloc_rx_resources(sge, p)) + return -ENOMEM; + if (alloc_tx_resources(sge, p)) { + free_rx_resources(sge); + return -ENOMEM; + } + configure_sge(sge, p); + + /* + * Now that we have sized the free lists calculate the payload + * capacity of the large buffers. Other parts of the driver use + * this to set the max offload coalescing size so that RX packets + * do not overflow our large buffers. + */ + p->large_buf_capacity = jumbo_payload_capacity(sge); + return 0; +} + +/* + * Frees all SGE related resources and the sge structure itself + */ +void t1_sge_destroy(struct sge *sge) +{ + if (sge->pskb) + dev_kfree_skb(sge->pskb); + free_tx_resources(sge); + free_rx_resources(sge); + kfree(sge); +} + +/* + * Allocates new RX buffers on the freelist Q (and tracks them on the freelist + * context Q) until the Q is full or alloc_skb fails. + * + * It is possible that the generation bits already match, indicating that the + * buffer is already valid and nothing needs to be done. This happens when we + * copied a received buffer into a new sk_buff during the interrupt processing. + * + * If the SGE doesn't automatically align packets properly (!sge->rx_pkt_pad), + * we specify a RX_OFFSET in order to make sure that the IP header is 4B + * aligned. + */ +static void refill_free_list(struct sge *sge, struct freelQ *Q) +{ + struct pci_dev *pdev = sge->adapter->pdev; + struct freelQ_ce *ce = &Q->centries[Q->pidx]; + struct freelQ_e *e = &Q->entries[Q->pidx]; + unsigned int dma_len = Q->rx_buffer_size - Q->dma_offset; + + + while (Q->credits < Q->entries_n) { + if (e->GenerationBit != Q->genbit) { + struct sk_buff *skb; + dma_addr_t mapping; + + skb = alloc_skb(Q->rx_buffer_size, GFP_ATOMIC); + if (!skb) + break; + if (Q->dma_offset) + skb_reserve(skb, Q->dma_offset); + mapping = pci_map_single(pdev, skb->data, dma_len, + PCI_DMA_FROMDEVICE); + ce->skb = skb; + pci_unmap_addr_set(ce, dma_addr, mapping); + pci_unmap_len_set(ce, dma_len, dma_len); + e->AddrLow = (u32)mapping; + e->AddrHigh = (u64)mapping >> 32; + e->BufferLength = dma_len; + e->GenerationBit = e->GenerationBit2 = Q->genbit; + } + + e++; + ce++; + if (++Q->pidx == Q->entries_n) { + Q->pidx = 0; + Q->genbit ^= 1; + ce = Q->centries; + e = Q->entries; + } + Q->credits++; + } + +} + +/* + * Calls refill_free_list for both freelist Qs. If we cannot + * fill at least 1/4 of both Qs, we go into 'few interrupt mode' in order + * to give the system time to free up resources. + */ +static void freelQs_empty(struct sge *sge) +{ + u32 irq_reg = t1_read_reg_4(sge->adapter, A_SG_INT_ENABLE); + u32 irqholdoff_reg; + + refill_free_list(sge, &sge->freelQ[0]); + refill_free_list(sge, &sge->freelQ[1]); + + if (sge->freelQ[0].credits > (sge->freelQ[0].entries_n >> 2) && + sge->freelQ[1].credits > (sge->freelQ[1].entries_n >> 2)) { + irq_reg |= F_FL_EXHAUSTED; + irqholdoff_reg = sge->intrtimer[sge->currIndex]; + } else { + /* Clear the F_FL_EXHAUSTED interrupts for now */ + irq_reg &= ~F_FL_EXHAUSTED; + irqholdoff_reg = sge->intrtimer_nres; + } + t1_write_reg_4(sge->adapter, A_SG_INTRTIMER, irqholdoff_reg); + t1_write_reg_4(sge->adapter, A_SG_INT_ENABLE, irq_reg); + + /* We reenable the Qs to force a freelist GTS interrupt later */ + doorbell_pio(sge, F_FL0_ENABLE | F_FL1_ENABLE); +} + +#define SGE_PL_INTR_MASK (F_PL_INTR_SGE_ERR | F_PL_INTR_SGE_DATA) +#define SGE_INT_FATAL (F_RESPQ_OVERFLOW | F_PACKET_TOO_BIG | F_PACKET_MISMATCH) +#define SGE_INT_ENABLE (F_RESPQ_EXHAUSTED | F_RESPQ_OVERFLOW | \ + F_FL_EXHAUSTED | F_PACKET_TOO_BIG | F_PACKET_MISMATCH) + +/* + * Disable SGE Interrupts + */ +void t1_sge_intr_disable(struct sge *sge) +{ + u32 val = t1_read_reg_4(sge->adapter, A_PL_ENABLE); + + t1_write_reg_4(sge->adapter, A_PL_ENABLE, val & ~SGE_PL_INTR_MASK); + t1_write_reg_4(sge->adapter, A_SG_INT_ENABLE, 0); +} + +/* + * Enable SGE interrupts. + */ +void t1_sge_intr_enable(struct sge *sge) +{ + u32 en = SGE_INT_ENABLE; + u32 val = t1_read_reg_4(sge->adapter, A_PL_ENABLE); + + if (sge->adapter->flags & TSO_CAPABLE) + en &= ~F_PACKET_TOO_BIG; + t1_write_reg_4(sge->adapter, A_SG_INT_ENABLE, en); + t1_write_reg_4(sge->adapter, A_PL_ENABLE, val | SGE_PL_INTR_MASK); +} + +/* + * Clear SGE interrupts. + */ +void t1_sge_intr_clear(struct sge *sge) +{ + t1_write_reg_4(sge->adapter, A_PL_CAUSE, SGE_PL_INTR_MASK); + t1_write_reg_4(sge->adapter, A_SG_INT_CAUSE, 0xffffffff); +} + +/* + * SGE 'Error' interrupt handler + */ +int t1_sge_intr_error_handler(struct sge *sge) +{ + struct adapter *adapter = sge->adapter; + u32 cause = t1_read_reg_4(adapter, A_SG_INT_CAUSE); + + if (adapter->flags & TSO_CAPABLE) + cause &= ~F_PACKET_TOO_BIG; + if (cause & F_RESPQ_EXHAUSTED) + sge->intr_cnt.respQ_empty++; + if (cause & F_RESPQ_OVERFLOW) { + sge->intr_cnt.respQ_overflow++; + CH_ALERT("%s: SGE response queue overflow\n", + adapter->name); + } + if (cause & F_FL_EXHAUSTED) { + sge->intr_cnt.freelistQ_empty++; + freelQs_empty(sge); + } + if (cause & F_PACKET_TOO_BIG) { + sge->intr_cnt.pkt_too_big++; + CH_ALERT("%s: SGE max packet size exceeded\n", + adapter->name); + } + if (cause & F_PACKET_MISMATCH) { + sge->intr_cnt.pkt_mismatch++; + CH_ALERT("%s: SGE packet mismatch\n", adapter->name); + } + if (cause & SGE_INT_FATAL) + t1_fatal_err(adapter); + + t1_write_reg_4(adapter, A_SG_INT_CAUSE, cause); + return 0; +} + +/* + * The following code is copied from 2.6, where the skb_pull is doing the + * right thing and only pulls ETH_HLEN. + * + * Determine the packet's protocol ID. The rule here is that we + * assume 802.3 if the type field is short enough to be a length. + * This is normal practice and works for any 'now in use' protocol. + */ +static unsigned short sge_eth_type_trans(struct sk_buff *skb, + struct net_device *dev) +{ + struct ethhdr *eth; + unsigned char *rawp; + + skb->mac.raw = skb->data; + skb_pull(skb, ETH_HLEN); + eth = (struct ethhdr *)skb->mac.raw; + + if (*eth->h_dest&1) { + if(memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0) + skb->pkt_type = PACKET_BROADCAST; + else + skb->pkt_type = PACKET_MULTICAST; + } + + /* + * This ALLMULTI check should be redundant by 1.4 + * so don't forget to remove it. + * + * Seems, you forgot to remove it. All silly devices + * seems to set IFF_PROMISC. + */ + + else if (1 /*dev->flags&IFF_PROMISC*/) + { + if(memcmp(eth->h_dest,dev->dev_addr, ETH_ALEN)) + skb->pkt_type=PACKET_OTHERHOST; + } + + if (ntohs(eth->h_proto) >= 1536) + return eth->h_proto; + + rawp = skb->data; + + /* + * This is a magic hack to spot IPX packets. Older Novell breaks + * the protocol design and runs IPX over 802.3 without an 802.2 LLC + * layer. We look for FFFF which isn't a used 802.2 SSAP/DSAP. This + * won't work for fault tolerant netware but does for the rest. + */ + if (*(unsigned short *)rawp == 0xFFFF) + return htons(ETH_P_802_3); + + /* + * Real 802.2 LLC + */ + return htons(ETH_P_802_2); +} + +/* + * Prepare the received buffer and pass it up the stack. If it is small enough + * and allocation doesn't fail, we use a new sk_buff and copy the content. + */ +static unsigned int t1_sge_rx(struct sge *sge, struct freelQ *Q, + unsigned int len, unsigned int offload) +{ + struct sk_buff *skb; + struct adapter *adapter = sge->adapter; + struct freelQ_ce *ce = &Q->centries[Q->cidx]; + + if (len <= SGE_RX_COPY_THRESHOLD && + (skb = alloc_skb(len + NET_IP_ALIGN, GFP_ATOMIC))) { + struct freelQ_e *e; + char *src = ce->skb->data; + + pci_dma_sync_single_for_cpu(adapter->pdev, + pci_unmap_addr(ce, dma_addr), + pci_unmap_len(ce, dma_len), + PCI_DMA_FROMDEVICE); + if (!offload) { + skb_reserve(skb, NET_IP_ALIGN); + src += sge->rx_pkt_pad; + } + memcpy(skb->data, src, len); + + /* Reuse the entry. */ + e = &Q->entries[Q->cidx]; + e->GenerationBit ^= 1; + e->GenerationBit2 ^= 1; + } else { + pci_unmap_single(adapter->pdev, pci_unmap_addr(ce, dma_addr), + pci_unmap_len(ce, dma_len), + PCI_DMA_FROMDEVICE); + skb = ce->skb; + if (!offload && sge->rx_pkt_pad) + __skb_pull(skb, sge->rx_pkt_pad); + } + + skb_put(skb, len); + + + if (unlikely(offload)) { + { + printk(KERN_ERR + "%s: unexpected offloaded packet, cmd %u\n", + adapter->name, *skb->data); + dev_kfree_skb_any(skb); + } + } else { + struct cpl_rx_pkt *p = (struct cpl_rx_pkt *)skb->data; + + skb_pull(skb, sizeof(*p)); + skb->dev = adapter->port[p->iff].dev; + skb->dev->last_rx = jiffies; + skb->protocol = sge_eth_type_trans(skb, skb->dev); + if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff && + skb->protocol == htons(ETH_P_IP) && + (skb->data[9] == IPPROTO_TCP || + skb->data[9] == IPPROTO_UDP)) + skb->ip_summed = CHECKSUM_UNNECESSARY; + else + skb->ip_summed = CHECKSUM_NONE; + if (adapter->vlan_grp && p->vlan_valid) + vlan_hwaccel_rx(skb, adapter->vlan_grp, + ntohs(p->vlan)); + else + netif_rx(skb); + } + + if (++Q->cidx == Q->entries_n) + Q->cidx = 0; + + if (unlikely(--Q->credits < Q->entries_n - SGE_FREEL_REFILL_THRESH)) + refill_free_list(sge, Q); + return 1; +} + + +/* + * Adaptive interrupt timer logic to keep the CPU utilization to + * manageable levels. Basically, as the Average Packet Size (APS) + * gets higher, the interrupt latency setting gets longer. Every + * SGE_INTR_BUCKETSIZE (of 100B) causes a bump of 2usec to the + * base value of SGE_INTRTIMER0. At large values of payload the + * latency hits the ceiling value of SGE_INTRTIMER1 stored at + * index SGE_INTR_MAXBUCKETS-1 in sge->intrtimer[]. + * + * sge->currIndex caches the last index to save unneeded PIOs. + */ +static inline void update_intr_timer(struct sge *sge, unsigned int avg_payload) +{ + unsigned int newIndex; + + newIndex = avg_payload / SGE_INTR_BUCKETSIZE; + if (newIndex > SGE_INTR_MAXBUCKETS - 1) { + newIndex = SGE_INTR_MAXBUCKETS - 1; + } + /* Save a PIO with this check....maybe */ + if (newIndex != sge->currIndex) { + t1_write_reg_4(sge->adapter, A_SG_INTRTIMER, + sge->intrtimer[newIndex]); + sge->currIndex = newIndex; + sge->adapter->params.sge.last_rx_coalesce_raw = + sge->intrtimer[newIndex]; + } +} + +/* + * Returns true if command queue q_num has enough available descriptors that + * we can resume Tx operation after temporarily disabling its packet queue. + */ +static inline int enough_free_Tx_descs(struct sge *sge, int q_num) +{ + return atomic_read(&sge->cmdQ[q_num].credits) > + (sge->cmdQ[q_num].entries_n >> 2); +} + +/* + * Main interrupt handler, optimized assuming that we took a 'DATA' + * interrupt. + * + * 1. Clear the interrupt + * 2. Loop while we find valid descriptors and process them; accumulate + * information that can be processed after the loop + * 3. Tell the SGE at which index we stopped processing descriptors + * 4. Bookkeeping; free TX buffers, ring doorbell if there are any + * outstanding TX buffers waiting, replenish RX buffers, potentially + * reenable upper layers if they were turned off due to lack of TX + * resources which are available again. + * 5. If we took an interrupt, but no valid respQ descriptors was found we + * let the slow_intr_handler run and do error handling. + */ +irqreturn_t t1_interrupt(int irq, void *cookie, struct pt_regs *regs) +{ + struct net_device *netdev; + struct adapter *adapter = cookie; + struct sge *sge = adapter->sge; + struct respQ *Q = &sge->respQ; + unsigned int credits = Q->credits, flags = 0, ret = 0; + unsigned int tot_rxpayload = 0, tot_txpayload = 0, n_rx = 0, n_tx = 0; + unsigned int credits_pend[SGE_CMDQ_N] = { 0, 0 }; + + struct respQ_e *e = &Q->entries[Q->cidx]; + prefetch(e); + + t1_write_reg_4(adapter, A_PL_CAUSE, F_PL_INTR_SGE_DATA); + + + while (e->GenerationBit == Q->genbit) { + if (--credits < SGE_RESPQ_REPLENISH_THRES) { + u32 n = Q->entries_n - credits - 1; + + t1_write_reg_4(adapter, A_SG_RSPQUEUECREDIT, n); + credits += n; + } + if (likely(e->DataValid)) { + if (!e->Sop || !e->Eop) + BUG(); + t1_sge_rx(sge, &sge->freelQ[e->FreelistQid], + e->BufferLength, e->Offload); + tot_rxpayload += e->BufferLength; + ++n_rx; + } + flags |= e->Qsleeping; + credits_pend[0] += e->Cmdq0CreditReturn; + credits_pend[1] += e->Cmdq1CreditReturn; + +#ifdef CONFIG_SMP + /* + * If enough cmdQ0 buffers have finished DMAing free them so + * anyone that may be waiting for their release can continue. + * We do this only on MP systems to allow other CPUs to proceed + * promptly. UP systems can wait for the free_cmdQ_buffers() + * calls after this loop as the sole CPU is currently busy in + * this loop. + */ + if (unlikely(credits_pend[0] > SGE_FREEL_REFILL_THRESH)) { + free_cmdQ_buffers(sge, &sge->cmdQ[0], credits_pend[0], + &tot_txpayload); + n_tx += credits_pend[0]; + credits_pend[0] = 0; + } +#endif + ret++; + e++; + if (unlikely(++Q->cidx == Q->entries_n)) { + Q->cidx = 0; + Q->genbit ^= 1; + e = Q->entries; + } + } + + Q->credits = credits; + t1_write_reg_4(adapter, A_SG_SLEEPING, Q->cidx); + + if (credits_pend[0]) + free_cmdQ_buffers(sge, &sge->cmdQ[0], credits_pend[0], &tot_txpayload); + if (credits_pend[1]) + free_cmdQ_buffers(sge, &sge->cmdQ[1], credits_pend[1], &tot_txpayload); + + /* Do any coalescing and interrupt latency timer adjustments */ + if (adapter->params.sge.coalesce_enable) { + unsigned int avg_txpayload = 0, avg_rxpayload = 0; + + n_tx += credits_pend[0] + credits_pend[1]; + + /* + * Choose larger avg. payload size to increase + * throughput and reduce [CPU util., intr/s.] + * + * Throughput behavior favored in mixed-mode. + */ + if (n_tx) + avg_txpayload = tot_txpayload/n_tx; + if (n_rx) + avg_rxpayload = tot_rxpayload/n_rx; + + if (n_tx && avg_txpayload > avg_rxpayload){ + update_intr_timer(sge, avg_txpayload); + } else if (n_rx) { + update_intr_timer(sge, avg_rxpayload); + } + } + + if (flags & F_CMDQ0_ENABLE) { + struct cmdQ *cmdQ = &sge->cmdQ[0]; + + atomic_set(&cmdQ->asleep, 1); + if (atomic_read(&cmdQ->pio_pidx) != cmdQ->pidx) { + doorbell_pio(sge, F_CMDQ0_ENABLE); + atomic_set(&cmdQ->pio_pidx, cmdQ->pidx); + } + } + if (unlikely(flags & (F_FL0_ENABLE | F_FL1_ENABLE))) + freelQs_empty(sge); + + netdev = adapter->port[0].dev; + if (unlikely(netif_queue_stopped(netdev) && netif_carrier_ok(netdev) && + enough_free_Tx_descs(sge, 0) && + enough_free_Tx_descs(sge, 1))) { + netif_wake_queue(netdev); + } + if (unlikely(!ret)) + ret = t1_slow_intr_handler(adapter); + + return IRQ_RETVAL(ret != 0); +} + +/* + * Enqueues the sk_buff onto the cmdQ[qid] and has hardware fetch it. + * + * The code figures out how many entries the sk_buff will require in the + * cmdQ and updates the cmdQ data structure with the state once the enqueue + * has complete. Then, it doesn't access the global structure anymore, but + * uses the corresponding fields on the stack. In conjuction with a spinlock + * around that code, we can make the function reentrant without holding the + * lock when we actually enqueue (which might be expensive, especially on + * architectures with IO MMUs). + */ +static unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter, + unsigned int qid) +{ + struct sge *sge = adapter->sge; + struct cmdQ *Q = &sge->cmdQ[qid]; + struct cmdQ_e *e; + struct cmdQ_ce *ce; + dma_addr_t mapping; + unsigned int credits, pidx, genbit; + + unsigned int count = 1 + skb_shinfo(skb)->nr_frags; + + /* + * Coming from the timer + */ + if ((skb == sge->pskb)) { + /* + * Quit if any cmdQ activities + */ + if (!spin_trylock(&Q->Qlock)) + return 0; + if (atomic_read(&Q->credits) != Q->entries_n) { + spin_unlock(&Q->Qlock); + return 0; + } + } + else + spin_lock(&Q->Qlock); + + genbit = Q->genbit; + pidx = Q->pidx; + credits = atomic_read(&Q->credits); + + credits -= count; + atomic_sub(count, &Q->credits); + Q->pidx += count; + if (Q->pidx >= Q->entries_n) { + Q->pidx -= Q->entries_n; + Q->genbit ^= 1; + } + + if (unlikely(credits < (MAX_SKB_FRAGS + 1))) { + sge->intr_cnt.cmdQ_full[qid]++; + netif_stop_queue(adapter->port[0].dev); + } + spin_unlock(&Q->Qlock); + + mapping = pci_map_single(adapter->pdev, skb->data, + skb->len - skb->data_len, PCI_DMA_TODEVICE); + ce = &Q->centries[pidx]; + ce->skb = NULL; + pci_unmap_addr_set(ce, dma_addr, mapping); + pci_unmap_len_set(ce, dma_len, skb->len - skb->data_len); + ce->single = 1; + + e = &Q->entries[pidx]; + e->Sop = 1; + e->DataValid = 1; + e->BufferLength = skb->len - skb->data_len; + e->AddrHigh = (u64)mapping >> 32; + e->AddrLow = (u32)mapping; + + if (--count > 0) { + unsigned int i; + + e->Eop = 0; + wmb(); + e->GenerationBit = e->GenerationBit2 = genbit; + + for (i = 0; i < count; i++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + + ce++; e++; + if (++pidx == Q->entries_n) { + pidx = 0; + genbit ^= 1; + ce = Q->centries; + e = Q->entries; + } + + mapping = pci_map_page(adapter->pdev, frag->page, + frag->page_offset, + frag->size, + PCI_DMA_TODEVICE); + ce->skb = NULL; + pci_unmap_addr_set(ce, dma_addr, mapping); + pci_unmap_len_set(ce, dma_len, frag->size); + ce->single = 0; + + e->Sop = 0; + e->DataValid = 1; + e->BufferLength = frag->size; + e->AddrHigh = (u64)mapping >> 32; + e->AddrLow = (u32)mapping; + + if (i < count - 1) { + e->Eop = 0; + wmb(); + e->GenerationBit = e->GenerationBit2 = genbit; + } + } + } + + if (skb != sge->pskb) + ce->skb = skb; + e->Eop = 1; + wmb(); + e->GenerationBit = e->GenerationBit2 = genbit; + + /* + * We always ring the doorbell for cmdQ1. For cmdQ0, we only ring + * the doorbell if the Q is asleep. There is a natural race, where + * the hardware is going to sleep just after we checked, however, + * then the interrupt handler will detect the outstanding TX packet + * and ring the doorbell for us. + */ + if (qid) { + doorbell_pio(sge, F_CMDQ1_ENABLE); + } else if (atomic_read(&Q->asleep)) { + atomic_set(&Q->asleep, 0); + doorbell_pio(sge, F_CMDQ0_ENABLE); + atomic_set(&Q->pio_pidx, Q->pidx); + } + return 0; +} + +#define MK_ETH_TYPE_MSS(type, mss) (((mss) & 0x3FFF) | ((type) << 14)) + +/* + * Adds the CPL header to the sk_buff and passes it to t1_sge_tx. + */ +int t1_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + struct adapter *adapter = dev->priv; + struct cpl_tx_pkt *cpl; + struct ethhdr *eth; + size_t max_len; + + /* + * We are using a non-standard hard_header_len and some kernel + * components, such as pktgen, do not handle it right. Complain + * when this happens but try to fix things up. + */ + if (unlikely(skb_headroom(skb) < dev->hard_header_len - ETH_HLEN)) { + struct sk_buff *orig_skb = skb; + + if (net_ratelimit()) + printk(KERN_ERR + "%s: Tx packet has inadequate headroom\n", + dev->name); + skb = skb_realloc_headroom(skb, sizeof(struct cpl_tx_pkt_lso)); + dev_kfree_skb_any(orig_skb); + if (!skb) + return -ENOMEM; + } + + if (skb_shinfo(skb)->tso_size) { + int eth_type; + struct cpl_tx_pkt_lso *hdr; + + eth_type = skb->nh.raw - skb->data == ETH_HLEN ? + CPL_ETH_II : CPL_ETH_II_VLAN; + + hdr = (struct cpl_tx_pkt_lso *)skb_push(skb, sizeof(*hdr)); + hdr->opcode = CPL_TX_PKT_LSO; + hdr->ip_csum_dis = hdr->l4_csum_dis = 0; + hdr->ip_hdr_words = skb->nh.iph->ihl; + hdr->tcp_hdr_words = skb->h.th->doff; + hdr->eth_type_mss = htons(MK_ETH_TYPE_MSS(eth_type, + skb_shinfo(skb)->tso_size)); + hdr->len = htonl(skb->len - sizeof(*hdr)); + cpl = (struct cpl_tx_pkt *)hdr; + } else + { + /* + * An Ethernet packet must have at least space for + * the DIX Ethernet header and be no greater than + * the device set MTU. Otherwise trash the packet. + */ + if (skb->len < ETH_HLEN) + goto t1_start_xmit_fail2; + eth = (struct ethhdr *)skb->data; + if (eth->h_proto == htons(ETH_P_8021Q)) + max_len = dev->mtu + VLAN_ETH_HLEN; + else + max_len = dev->mtu + ETH_HLEN; + if (skb->len > max_len) + goto t1_start_xmit_fail2; + + if (!(adapter->flags & UDP_CSUM_CAPABLE) && + skb->ip_summed == CHECKSUM_HW && + skb->nh.iph->protocol == IPPROTO_UDP && + skb_checksum_help(skb, 0)) + goto t1_start_xmit_fail3; + + + if (!adapter->sge->pskb) { + if (skb->protocol == htons(ETH_P_ARP) && + skb->nh.arph->ar_op == htons(ARPOP_REQUEST)) + adapter->sge->pskb = skb; + } + cpl = (struct cpl_tx_pkt *)skb_push(skb, sizeof(*cpl)); + cpl->opcode = CPL_TX_PKT; + cpl->ip_csum_dis = 1; /* SW calculates IP csum */ + cpl->l4_csum_dis = skb->ip_summed == CHECKSUM_HW ? 0 : 1; + /* the length field isn't used so don't bother setting it */ + } + cpl->iff = dev->if_port; + +#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) + if (adapter->vlan_grp && vlan_tx_tag_present(skb)) { + cpl->vlan_valid = 1; + cpl->vlan = htons(vlan_tx_tag_get(skb)); + } else +#endif + cpl->vlan_valid = 0; + + dev->trans_start = jiffies; + return t1_sge_tx(skb, adapter, 0); + +t1_start_xmit_fail3: + printk(KERN_INFO "%s: Unable to complete checksum\n", dev->name); + goto t1_start_xmit_fail1; + +t1_start_xmit_fail2: + printk(KERN_INFO "%s: Invalid packet length %d, dropping\n", + dev->name, skb->len); + +t1_start_xmit_fail1: + dev_kfree_skb_any(skb); + return 0; +} + +void t1_sge_set_ptimeout(adapter_t *adapter, u32 val) +{ + struct sge *sge = adapter->sge; + + if (is_T2(adapter)) + sge->ptimeout = max((u32)((HZ * val) / 1000), (u32)1); +} + +u32 t1_sge_get_ptimeout(adapter_t *adapter) +{ + struct sge *sge = adapter->sge; + + return (is_T2(adapter) ? ((sge->ptimeout * 1000) / HZ) : 0); +} + diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h new file mode 100644 index 0000000..140f896 --- /dev/null +++ b/drivers/net/chelsio/sge.h @@ -0,0 +1,79 @@ +/***************************************************************************** + * * + * File: sge.h * + * $Revision: 1.7 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef _CHELSIO_LINUX_SGE_H_ +#define _CHELSIO_LINUX_SGE_H_ + +#include +#include +#include + +struct sge_intr_counts { + unsigned int respQ_empty; /* # times respQ empty */ + unsigned int respQ_overflow; /* # respQ overflow (fatal) */ + unsigned int freelistQ_empty; /* # times freelist empty */ + unsigned int pkt_too_big; /* packet too large (fatal) */ + unsigned int pkt_mismatch; + unsigned int cmdQ_full[2]; /* not HW interrupt, host cmdQ[] full */ +}; + +struct sk_buff; +struct net_device; +struct cxgbdev; +struct adapter; +struct sge_params; +struct sge; + +struct sge *t1_sge_create(struct adapter *, struct sge_params *); +int t1_sge_configure(struct sge *, struct sge_params *); +int t1_sge_set_coalesce_params(struct sge *, struct sge_params *); +void t1_sge_destroy(struct sge *); +irqreturn_t t1_interrupt(int, void *, struct pt_regs *); +int t1_start_xmit(struct sk_buff *skb, struct net_device *dev); +void t1_set_vlan_accel(struct adapter *adapter, int on_off); +void t1_sge_start(struct sge *); +void t1_sge_stop(struct sge *); +int t1_sge_intr_error_handler(struct sge *); +void t1_sge_intr_enable(struct sge *); +void t1_sge_intr_disable(struct sge *); +void t1_sge_intr_clear(struct sge *); + +void t1_sge_set_ptimeout(adapter_t *adapter, u32 val); +u32 t1_sge_get_ptimeout(adapter_t *adapter); + +#endif /* _CHELSIO_LINUX_SGE_H_ */ diff --git a/drivers/net/chelsio/subr.c b/drivers/net/chelsio/subr.c new file mode 100644 index 0000000..a90a3f9 --- /dev/null +++ b/drivers/net/chelsio/subr.c @@ -0,0 +1,831 @@ +/***************************************************************************** + * * + * File: subr.c * + * $Revision: 1.12 $ * + * $Date: 2005/03/23 07:41:27 $ * + * Description: * + * Various subroutines (intr,pio,etc.) used by Chelsio 10G Ethernet driver. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" +#include "elmer0.h" +#include "regs.h" + +#include "gmac.h" +#include "cphy.h" +#include "sge.h" +#include "tp.h" +#include "espi.h" + +/** + * t1_wait_op_done - wait until an operation is completed + * @adapter: the adapter performing the operation + * @reg: the register to check for completion + * @mask: a single-bit field within @reg that indicates completion + * @polarity: the value of the field when the operation is completed + * @attempts: number of check iterations + * @delay: delay in usecs between iterations + * + * Wait until an operation is completed by checking a bit in a register + * up to @attempts times. Returns %0 if the operation completes and %1 + * otherwise. + */ +static int t1_wait_op_done(adapter_t *adapter, int reg, u32 mask, int polarity, + int attempts, int delay) +{ + while (1) { + u32 val = t1_read_reg_4(adapter, reg) & mask; + + if (!!val == polarity) + return 0; + if (--attempts == 0) + return 1; + if (delay) + udelay(delay); + } +} + +#define TPI_ATTEMPTS 50 + +/* + * Write a register over the TPI interface (unlocked and locked versions). + */ +static int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value) +{ + int tpi_busy; + + t1_write_reg_4(adapter, A_TPI_ADDR, addr); + t1_write_reg_4(adapter, A_TPI_WR_DATA, value); + t1_write_reg_4(adapter, A_TPI_CSR, F_TPIWR); + + tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1, + TPI_ATTEMPTS, 3); + if (tpi_busy) + CH_ALERT("%s: TPI write to 0x%x failed\n", + adapter->name, addr); + return tpi_busy; +} + +int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value) +{ + int ret; + + TPI_LOCK(adapter); + ret = __t1_tpi_write(adapter, addr, value); + TPI_UNLOCK(adapter); + return ret; +} + +/* + * Read a register over the TPI interface (unlocked and locked versions). + */ +static int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp) +{ + int tpi_busy; + + t1_write_reg_4(adapter, A_TPI_ADDR, addr); + t1_write_reg_4(adapter, A_TPI_CSR, 0); + + tpi_busy = t1_wait_op_done(adapter, A_TPI_CSR, F_TPIRDY, 1, + TPI_ATTEMPTS, 3); + if (tpi_busy) + CH_ALERT("%s: TPI read from 0x%x failed\n", + adapter->name, addr); + else + *valp = t1_read_reg_4(adapter, A_TPI_RD_DATA); + return tpi_busy; +} + +int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp) +{ + int ret; + + TPI_LOCK(adapter); + ret = __t1_tpi_read(adapter, addr, valp); + TPI_UNLOCK(adapter); + return ret; +} + +/* + * Set a TPI parameter. + */ +static void t1_tpi_par(adapter_t *adapter, u32 value) +{ + t1_write_reg_4(adapter, A_TPI_PAR, V_TPIPAR(value)); +} + +/* + * Called when a port's link settings change to propagate the new values to the + * associated PHY and MAC. After performing the common tasks it invokes an + * OS-specific handler. + */ +/* static */ void link_changed(adapter_t *adapter, int port_id) +{ + int link_ok, speed, duplex, fc; + struct cphy *phy = adapter->port[port_id].phy; + struct link_config *lc = &adapter->port[port_id].link_config; + + phy->ops->get_link_status(phy, &link_ok, &speed, &duplex, &fc); + + lc->speed = speed < 0 ? SPEED_INVALID : speed; + lc->duplex = duplex < 0 ? DUPLEX_INVALID : duplex; + if (!(lc->requested_fc & PAUSE_AUTONEG)) + fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + + if (link_ok && speed >= 0 && lc->autoneg == AUTONEG_ENABLE) { + /* Set MAC speed, duplex, and flow control to match PHY. */ + struct cmac *mac = adapter->port[port_id].mac; + + mac->ops->set_speed_duplex_fc(mac, speed, duplex, fc); + lc->fc = (unsigned char)fc; + } + t1_link_changed(adapter, port_id, link_ok, speed, duplex, fc); +} + +static int t1_pci_intr_handler(adapter_t *adapter) +{ + u32 pcix_cause; + + pci_read_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, &pcix_cause); + + if (pcix_cause) { + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, + pcix_cause); + t1_fatal_err(adapter); /* PCI errors are fatal */ + } + return 0; +} + + +/* + * Wait until Elmer's MI1 interface is ready for new operations. + */ +static int mi1_wait_until_ready(adapter_t *adapter, int mi1_reg) +{ + int attempts = 100, busy; + + do { + u32 val; + + __t1_tpi_read(adapter, mi1_reg, &val); + busy = val & F_MI1_OP_BUSY; + if (busy) + udelay(10); + } while (busy && --attempts); + if (busy) + CH_ALERT("%s: MDIO operation timed out\n", + adapter->name); + return busy; +} + +/* + * MI1 MDIO initialization. + */ +static void mi1_mdio_init(adapter_t *adapter, const struct board_info *bi) +{ + u32 clkdiv = bi->clock_elmer0 / (2 * bi->mdio_mdc) - 1; + u32 val = F_MI1_PREAMBLE_ENABLE | V_MI1_MDI_INVERT(bi->mdio_mdiinv) | + V_MI1_MDI_ENABLE(bi->mdio_mdien) | V_MI1_CLK_DIV(clkdiv); + + if (!(bi->caps & SUPPORTED_10000baseT_Full)) + val |= V_MI1_SOF(1); + t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_CFG, val); +} + +static int mi1_mdio_ext_read(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int *valp) +{ + u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr); + + TPI_LOCK(adapter); + + /* Write the address we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, + MI1_OP_INDIRECT_ADDRESS); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Write the operation we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_READ); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Read the data. */ + __t1_tpi_read(adapter, A_ELMER0_PORT0_MI1_DATA, valp); + TPI_UNLOCK(adapter); + return 0; +} + +static int mi1_mdio_ext_write(adapter_t *adapter, int phy_addr, int mmd_addr, + int reg_addr, unsigned int val) +{ + u32 addr = V_MI1_REG_ADDR(mmd_addr) | V_MI1_PHY_ADDR(phy_addr); + + TPI_LOCK(adapter); + + /* Write the address we want. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_ADDR, addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, reg_addr); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, + MI1_OP_INDIRECT_ADDRESS); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + + /* Write the data. */ + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_DATA, val); + __t1_tpi_write(adapter, A_ELMER0_PORT0_MI1_OP, MI1_OP_INDIRECT_WRITE); + mi1_wait_until_ready(adapter, A_ELMER0_PORT0_MI1_OP); + TPI_UNLOCK(adapter); + return 0; +} + +static struct mdio_ops mi1_mdio_ext_ops = { + mi1_mdio_init, + mi1_mdio_ext_read, + mi1_mdio_ext_write +}; + +enum { + CH_BRD_N110_1F, + CH_BRD_N210_1F, + CH_BRD_T210_1F, +}; + +static struct board_info t1_board[] = { + +{ CHBT_BOARD_N110, 1/*ports#*/, + SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T1, + CHBT_MAC_PM3393, CHBT_PHY_88X2010, + 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/, + 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/, + 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops, + &t1_mv88x201x_ops, &mi1_mdio_ext_ops, + "Chelsio N110 1x10GBaseX NIC" }, + +{ CHBT_BOARD_N210, 1/*ports#*/, + SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE /*caps*/, CHBT_TERM_T2, + CHBT_MAC_PM3393, CHBT_PHY_88X2010, + 125000000/*clk-core*/, 0/*clk-mc3*/, 0/*clk-mc4*/, + 1/*espi-ports*/, 0/*clk-cspi*/, 44/*clk-elmer0*/, 0/*mdien*/, + 0/*mdiinv*/, 1/*mdc*/, 0/*phybaseaddr*/, &t1_pm3393_ops, + &t1_mv88x201x_ops, &mi1_mdio_ext_ops, + "Chelsio N210 1x10GBaseX NIC" }, + +}; + +struct pci_device_id t1_pci_tbl[] = { + CH_DEVICE(7, 0, CH_BRD_N110_1F), + CH_DEVICE(10, 1, CH_BRD_N210_1F), + { 0, } +}; + +/* + * Return the board_info structure with a given index. Out-of-range indices + * return NULL. + */ +const struct board_info *t1_get_board_info(unsigned int board_id) +{ + return board_id < DIMOF(t1_board) ? &t1_board[board_id] : NULL; +} + +struct chelsio_vpd_t { + u32 format_version; + u8 serial_number[16]; + u8 mac_base_address[6]; + u8 pad[2]; /* make multiple-of-4 size requirement explicit */ +}; + +#define EEPROMSIZE (8 * 1024) +#define EEPROM_MAX_POLL 4 + +/* + * Read SEEPROM. A zero is written to the flag register when the addres is + * written to the Control register. The hardware device will set the flag to a + * one when 4B have been transferred to the Data register. + */ +int t1_seeprom_read(adapter_t *adapter, u32 addr, u32 *data) +{ + int i = EEPROM_MAX_POLL; + u16 val; + + if (addr >= EEPROMSIZE || (addr & 3)) + return -EINVAL; + + pci_write_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, (u16)addr); + do { + udelay(50); + pci_read_config_word(adapter->pdev, A_PCICFG_VPD_ADDR, &val); + } while (!(val & F_VPD_OP_FLAG) && --i); + + if (!(val & F_VPD_OP_FLAG)) { + CH_ERR("%s: reading EEPROM address 0x%x failed\n", + adapter->name, addr); + return -EIO; + } + pci_read_config_dword(adapter->pdev, A_PCICFG_VPD_DATA, data); + *data = le32_to_cpu(*data); + return 0; +} + +static int t1_eeprom_vpd_get(adapter_t *adapter, struct chelsio_vpd_t *vpd) +{ + int addr, ret = 0; + + for (addr = 0; !ret && addr < sizeof(*vpd); addr += sizeof(u32)) + ret = t1_seeprom_read(adapter, addr, + (u32 *)((u8 *)vpd + addr)); + + return ret; +} + +/* + * Read a port's MAC address from the VPD ROM. + */ +static int vpd_macaddress_get(adapter_t *adapter, int index, u8 mac_addr[]) +{ + struct chelsio_vpd_t vpd; + + if (t1_eeprom_vpd_get(adapter, &vpd)) + return 1; + memcpy(mac_addr, vpd.mac_base_address, 5); + mac_addr[5] = vpd.mac_base_address[5] + index; + return 0; +} + +/* + * Set up the MAC/PHY according to the requested link settings. + * + * If the PHY can auto-negotiate first decide what to advertise, then + * enable/disable auto-negotiation as desired and reset. + * + * If the PHY does not auto-negotiate we just reset it. + * + * If auto-negotiation is off set the MAC to the proper speed/duplex/FC, + * otherwise do it later based on the outcome of auto-negotiation. + */ +int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc) +{ + unsigned int fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX); + + if (lc->supported & SUPPORTED_Autoneg) { + lc->advertising &= ~(ADVERTISED_ASYM_PAUSE | ADVERTISED_PAUSE); + if (fc) { + lc->advertising |= ADVERTISED_ASYM_PAUSE; + if (fc == (PAUSE_RX | PAUSE_TX)) + lc->advertising |= ADVERTISED_PAUSE; + } + phy->ops->advertise(phy, lc->advertising); + + if (lc->autoneg == AUTONEG_DISABLE) { + lc->speed = lc->requested_speed; + lc->duplex = lc->requested_duplex; + lc->fc = (unsigned char)fc; + mac->ops->set_speed_duplex_fc(mac, lc->speed, + lc->duplex, fc); + /* Also disables autoneg */ + phy->ops->set_speed_duplex(phy, lc->speed, lc->duplex); + phy->ops->reset(phy, 0); + } else + phy->ops->autoneg_enable(phy); /* also resets PHY */ + } else { + mac->ops->set_speed_duplex_fc(mac, -1, -1, fc); + lc->fc = (unsigned char)fc; + phy->ops->reset(phy, 0); + } + return 0; +} + +/* + * External interrupt handler for boards using elmer0. + */ +int elmer0_ext_intr_handler(adapter_t *adapter) +{ + struct cphy *phy; + int phy_cause; + u32 cause; + + t1_tpi_read(adapter, A_ELMER0_INT_CAUSE, &cause); + + switch (board_info(adapter)->board) { + case CHBT_BOARD_CHT210: + case CHBT_BOARD_N210: + case CHBT_BOARD_N110: + if (cause & ELMER0_GP_BIT6) { /* Marvell 88x2010 interrupt */ + phy = adapter->port[0].phy; + phy_cause = phy->ops->interrupt_handler(phy); + if (phy_cause & cphy_cause_link_change) + link_changed(adapter, 0); + } + break; + case CHBT_BOARD_8000: + case CHBT_BOARD_CHT110: + CH_DBG(adapter, INTR, "External interrupt cause 0x%x\n", + cause); + if (cause & ELMER0_GP_BIT1) { /* PMC3393 INTB */ + struct cmac *mac = adapter->port[0].mac; + + mac->ops->interrupt_handler(mac); + } + if (cause & ELMER0_GP_BIT5) { /* XPAK MOD_DETECT */ + u32 mod_detect; + + t1_tpi_read(adapter, A_ELMER0_GPI_STAT, &mod_detect); + CH_MSG(adapter, INFO, LINK, "XPAK %s\n", + mod_detect ? "removed" : "inserted"); + } + break; + } + t1_tpi_write(adapter, A_ELMER0_INT_CAUSE, cause); + return 0; +} + +/* Enables all interrupts. */ +void t1_interrupts_enable(adapter_t *adapter) +{ + unsigned int i; + + adapter->slow_intr_mask = F_PL_INTR_SGE_ERR | F_PL_INTR_TP; + + t1_sge_intr_enable(adapter->sge); + t1_tp_intr_enable(adapter->tp); + if (adapter->espi) { + adapter->slow_intr_mask |= F_PL_INTR_ESPI; + t1_espi_intr_enable(adapter->espi); + } + + /* Enable MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_enable(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_enable(adapter->port[i].phy); + } + + /* Enable PCIX & external chip interrupts on ASIC boards. */ + if (t1_is_asic(adapter)) { + u32 pl_intr = t1_read_reg_4(adapter, A_PL_ENABLE); + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, + 0xffffffff); + + adapter->slow_intr_mask |= F_PL_INTR_EXT | F_PL_INTR_PCIX; + pl_intr |= F_PL_INTR_EXT | F_PL_INTR_PCIX; + t1_write_reg_4(adapter, A_PL_ENABLE, pl_intr); + } +} + +/* Disables all interrupts. */ +void t1_interrupts_disable(adapter_t* adapter) +{ + unsigned int i; + + t1_sge_intr_disable(adapter->sge); + t1_tp_intr_disable(adapter->tp); + if (adapter->espi) + t1_espi_intr_disable(adapter->espi); + + /* Disable MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_disable(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_disable(adapter->port[i].phy); + } + + /* Disable PCIX & external chip interrupts. */ + if (t1_is_asic(adapter)) + t1_write_reg_4(adapter, A_PL_ENABLE, 0); + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_ENABLE, 0); + + adapter->slow_intr_mask = 0; +} + +/* Clears all interrupts */ +void t1_interrupts_clear(adapter_t* adapter) +{ + unsigned int i; + + t1_sge_intr_clear(adapter->sge); + t1_tp_intr_clear(adapter->tp); + if (adapter->espi) + t1_espi_intr_clear(adapter->espi); + + /* Clear MAC/PHY interrupts for each port. */ + for_each_port(adapter, i) { + adapter->port[i].mac->ops->interrupt_clear(adapter->port[i].mac); + adapter->port[i].phy->ops->interrupt_clear(adapter->port[i].phy); + } + + /* Enable interrupts for external devices. */ + if (t1_is_asic(adapter)) { + u32 pl_intr = t1_read_reg_4(adapter, A_PL_CAUSE); + + t1_write_reg_4(adapter, A_PL_CAUSE, + pl_intr | F_PL_INTR_EXT | F_PL_INTR_PCIX); + } + + /* PCI-X interrupts */ + pci_write_config_dword(adapter->pdev, A_PCICFG_INTR_CAUSE, 0xffffffff); +} + +/* + * Slow path interrupt handler for ASICs. + */ +static int asic_slow_intr(adapter_t *adapter) +{ + u32 cause = t1_read_reg_4(adapter, A_PL_CAUSE); + + cause &= adapter->slow_intr_mask; + if (!cause) + return 0; + if (cause & F_PL_INTR_SGE_ERR) + t1_sge_intr_error_handler(adapter->sge); + if (cause & F_PL_INTR_TP) + t1_tp_intr_handler(adapter->tp); + if (cause & F_PL_INTR_ESPI) + t1_espi_intr_handler(adapter->espi); + if (cause & F_PL_INTR_PCIX) + t1_pci_intr_handler(adapter); + if (cause & F_PL_INTR_EXT) + t1_elmer0_ext_intr(adapter); + + /* Clear the interrupts just processed. */ + t1_write_reg_4(adapter, A_PL_CAUSE, cause); + (void)t1_read_reg_4(adapter, A_PL_CAUSE); /* flush writes */ + return 1; +} + +int t1_slow_intr_handler(adapter_t *adapter) +{ + return asic_slow_intr(adapter); +} + +/* Power sequencing is a work-around for Intel's XPAKs. */ +static void power_sequence_xpak(adapter_t* adapter) +{ + u32 mod_detect; + u32 gpo; + + /* Check for XPAK */ + t1_tpi_read(adapter, A_ELMER0_GPI_STAT, &mod_detect); + if (!(ELMER0_GP_BIT5 & mod_detect)) { + /* XPAK is present */ + t1_tpi_read(adapter, A_ELMER0_GPO, &gpo); + gpo |= ELMER0_GP_BIT18; + t1_tpi_write(adapter, A_ELMER0_GPO, gpo); + } +} + +int __devinit t1_get_board_rev(adapter_t *adapter, const struct board_info *bi, + struct adapter_params *p) +{ + p->chip_version = bi->chip_term; + p->is_asic = (p->chip_version != CHBT_TERM_FPGA); + if (p->chip_version == CHBT_TERM_T1 || + p->chip_version == CHBT_TERM_T2 || + p->chip_version == CHBT_TERM_FPGA) { + u32 val = t1_read_reg_4(adapter, A_TP_PC_CONFIG); + + val = G_TP_PC_REV(val); + if (val == 2) + p->chip_revision = TERM_T1B; + else if (val == 3) + p->chip_revision = TERM_T2; + else + return -1; + } else + return -1; + return 0; +} + +/* + * Enable board components other than the Chelsio chip, such as external MAC + * and PHY. + */ +static int board_init(adapter_t *adapter, const struct board_info *bi) +{ + switch (bi->board) { + case CHBT_BOARD_8000: + case CHBT_BOARD_N110: + case CHBT_BOARD_N210: + case CHBT_BOARD_CHT210: + case CHBT_BOARD_COUGAR: + t1_tpi_par(adapter, 0xf); + t1_tpi_write(adapter, A_ELMER0_GPO, 0x800); + break; + case CHBT_BOARD_CHT110: + t1_tpi_par(adapter, 0xf); + t1_tpi_write(adapter, A_ELMER0_GPO, 0x1800); + + /* TBD XXX Might not need. This fixes a problem + * described in the Intel SR XPAK errata. + */ + power_sequence_xpak(adapter); + break; + } + return 0; +} + +/* + * Initialize and configure the Terminator HW modules. Note that external + * MAC and PHYs are initialized separately. + */ +int t1_init_hw_modules(adapter_t *adapter) +{ + int err = -EIO; + const struct board_info *bi = board_info(adapter); + + if (!adapter->mc4) { + u32 val = t1_read_reg_4(adapter, A_MC4_CFG); + + t1_write_reg_4(adapter, A_MC4_CFG, val | F_READY | F_MC4_SLOW); + t1_write_reg_4(adapter, A_MC5_CONFIG, + F_M_BUS_ENABLE | F_TCAM_RESET); + } + + if (adapter->espi && t1_espi_init(adapter->espi, bi->chip_mac, + bi->espi_nports)) + goto out_err; + + if (t1_tp_reset(adapter->tp, &adapter->params.tp, bi->clock_core)) + goto out_err; + + err = t1_sge_configure(adapter->sge, &adapter->params.sge); + if (err) + goto out_err; + + err = 0; + out_err: + return err; +} + +/* + * Determine a card's PCI mode. + */ +static void __devinit get_pci_mode(adapter_t *adapter, struct pci_params *p) +{ + static unsigned short speed_map[] = { 33, 66, 100, 133 }; + u32 pci_mode; + + pci_read_config_dword(adapter->pdev, A_PCICFG_MODE, &pci_mode); + p->speed = speed_map[G_PCI_MODE_CLK(pci_mode)]; + p->width = (pci_mode & F_PCI_MODE_64BIT) ? 64 : 32; + p->is_pcix = (pci_mode & F_PCI_MODE_PCIX) != 0; +} + +/* + * Release the structures holding the SW per-Terminator-HW-module state. + */ +void t1_free_sw_modules(adapter_t *adapter) +{ + unsigned int i; + + for_each_port(adapter, i) { + struct cmac *mac = adapter->port[i].mac; + struct cphy *phy = adapter->port[i].phy; + + if (mac) + mac->ops->destroy(mac); + if (phy) + phy->ops->destroy(phy); + } + + if (adapter->sge) + t1_sge_destroy(adapter->sge); + if (adapter->tp) + t1_tp_destroy(adapter->tp); + if (adapter->espi) + t1_espi_destroy(adapter->espi); +} + +static void __devinit init_link_config(struct link_config *lc, + const struct board_info *bi) +{ + lc->supported = bi->caps; + lc->requested_speed = lc->speed = SPEED_INVALID; + lc->requested_duplex = lc->duplex = DUPLEX_INVALID; + lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX; + if (lc->supported & SUPPORTED_Autoneg) { + lc->advertising = lc->supported; + lc->autoneg = AUTONEG_ENABLE; + lc->requested_fc |= PAUSE_AUTONEG; + } else { + lc->advertising = 0; + lc->autoneg = AUTONEG_DISABLE; + } +} + + +/* + * Allocate and initialize the data structures that hold the SW state of + * the Terminator HW modules. + */ +int __devinit t1_init_sw_modules(adapter_t *adapter, + const struct board_info *bi) +{ + unsigned int i; + + adapter->params.brd_info = bi; + adapter->params.nports = bi->port_number; + adapter->params.stats_update_period = bi->gmac->stats_update_period; + + adapter->sge = t1_sge_create(adapter, &adapter->params.sge); + if (!adapter->sge) { + CH_ERR("%s: SGE initialization failed\n", + adapter->name); + goto error; + } + + + + if (bi->espi_nports && !(adapter->espi = t1_espi_create(adapter))) { + CH_ERR("%s: ESPI initialization failed\n", + adapter->name); + goto error; + } + + adapter->tp = t1_tp_create(adapter, &adapter->params.tp); + if (!adapter->tp) { + CH_ERR("%s: TP initialization failed\n", + adapter->name); + goto error; + } + + board_init(adapter, bi); + bi->mdio_ops->init(adapter, bi); + if (bi->gphy->reset) + bi->gphy->reset(adapter); + if (bi->gmac->reset) + bi->gmac->reset(adapter); + + for_each_port(adapter, i) { + u8 hw_addr[6]; + struct cmac *mac; + int phy_addr = bi->mdio_phybaseaddr + i; + + adapter->port[i].phy = bi->gphy->create(adapter, phy_addr, + bi->mdio_ops); + if (!adapter->port[i].phy) { + CH_ERR("%s: PHY %d initialization failed\n", + adapter->name, i); + goto error; + } + + adapter->port[i].mac = mac = bi->gmac->create(adapter, i); + if (!mac) { + CH_ERR("%s: MAC %d initialization failed\n", + adapter->name, i); + goto error; + } + + /* + * Get the port's MAC addresses either from the EEPROM if one + * exists or the one hardcoded in the MAC. + */ + if (!t1_is_asic(adapter) || bi->chip_mac == CHBT_MAC_DUMMY) + mac->ops->macaddress_get(mac, hw_addr); + else if (vpd_macaddress_get(adapter, i, hw_addr)) { + CH_ERR("%s: could not read MAC address from VPD ROM\n", + port_name(adapter, i)); + goto error; + } + t1_set_hw_addr(adapter, i, hw_addr); + init_link_config(&adapter->port[i].link_config, bi); + } + + get_pci_mode(adapter, &adapter->params.pci); + t1_interrupts_clear(adapter); + return 0; + + error: + t1_free_sw_modules(adapter); + return -1; +} diff --git a/drivers/net/chelsio/suni1x10gexp_regs.h b/drivers/net/chelsio/suni1x10gexp_regs.h new file mode 100644 index 0000000..98352bd --- /dev/null +++ b/drivers/net/chelsio/suni1x10gexp_regs.h @@ -0,0 +1,221 @@ +/***************************************************************************** + * * + * File: suni1x10gexp_regs.h * + * $Revision: 1.4 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * PMC/SIERRA (pm3393) MAC-PHY functionality. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef _SUNI1x10GEXP_REGS_H +#define _SUNI1x10GEXP_REGS_H + +/******************************************************************************/ +/** S/UNI-1x10GE-XP REGISTER ADDRESS MAP **/ +/******************************************************************************/ +/* Refer to the Register Bit Masks bellow for the naming of each register and */ +/* to the S/UNI-1x10GE-XP Data Sheet for the signification of each bit */ +/******************************************************************************/ + +#define SUNI1x10GEXP_REG_DEVICE_STATUS 0x0004 +#define SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS 0x000D +#define SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE 0x000E +#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE 0x0102 +#define SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS 0x0104 +#define SUNI1x10GEXP_REG_RXXG_CONFIG_1 0x2040 +#define SUNI1x10GEXP_REG_RXXG_CONFIG_3 0x2042 +#define SUNI1x10GEXP_REG_RXXG_INTERRUPT 0x2043 +#define SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH 0x2045 +#define SUNI1x10GEXP_REG_RXXG_SA_15_0 0x2046 +#define SUNI1x10GEXP_REG_RXXG_SA_31_16 0x2047 +#define SUNI1x10GEXP_REG_RXXG_SA_47_32 0x2048 +#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW 0x204D +#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID 0x204E +#define SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH 0x204F +#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW 0x206A +#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW 0x206B +#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH 0x206C +#define SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH 0x206D +#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0 0x206E +#define SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2 0x2070 +#define SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE 0x2088 +#define SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS 0x2089 +#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE 0x208B +#define SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS 0x208C +#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE 0x20C7 +#define SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS 0x20C8 +#define SUNI1x10GEXP_REG_MSTAT_CONTROL 0x2100 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0 0x2101 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1 0x2102 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2 0x2103 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3 0x2104 +#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0 0x2105 +#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1 0x2106 +#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2 0x2107 +#define SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3 0x2108 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW 0x2110 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW 0x2114 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW 0x2120 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW 0x2124 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW 0x2128 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW 0x2130 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW 0x2138 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW 0x213C +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW 0x2140 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW 0x2144 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW 0x214C +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW 0x2150 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW 0x2154 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW 0x2158 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW 0x2194 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW 0x219C +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW 0x21A0 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW 0x21A8 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW 0x21B0 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW 0x21B8 +#define SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW 0x21BC +#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE 0x2209 +#define SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT 0x220A +#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK 0x2282 +#define SUNI1x10GEXP_REG_PL4ODP_INTERRUPT 0x2283 +#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS 0x2300 +#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE 0x2301 +#define SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK 0x2302 +#define SUNI1x10GEXP_REG_TXXG_CONFIG_1 0x3040 +#define SUNI1x10GEXP_REG_TXXG_CONFIG_3 0x3042 +#define SUNI1x10GEXP_REG_TXXG_INTERRUPT 0x3043 +#define SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE 0x3045 +#define SUNI1x10GEXP_REG_TXXG_SA_15_0 0x3047 +#define SUNI1x10GEXP_REG_TXXG_SA_31_16 0x3048 +#define SUNI1x10GEXP_REG_TXXG_SA_47_32 0x3049 +#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS 0x3084 +#define SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE 0x3085 +#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE 0x30C6 +#define SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS 0x30C7 +#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE 0x320C +#define SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION 0x320D +#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK 0x3282 +#define SUNI1x10GEXP_REG_PL4IDU_INTERRUPT 0x3283 + +/******************************************************************************/ +/* -- End register offset definitions -- */ +/******************************************************************************/ + +/******************************************************************************/ +/** SUNI-1x10GE-XP REGISTER BIT MASKS **/ +/******************************************************************************/ + +/*---------------------------------------------------------------------------- + * Register 0x0004: S/UNI-1x10GE-XP Device Status + * Bit 9 TOP_SXRA_EXPIRED + * Bit 8 TOP_MDIO_BUSY + * Bit 7 TOP_DTRB + * Bit 6 TOP_EXPIRED + * Bit 5 TOP_PAUSED + * Bit 4 TOP_PL4_ID_DOOL + * Bit 3 TOP_PL4_IS_DOOL + * Bit 2 TOP_PL4_ID_ROOL + * Bit 1 TOP_PL4_IS_ROOL + * Bit 0 TOP_PL4_OUT_ROOL + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED 0x0200 +#define SUNI1x10GEXP_BITMSK_TOP_EXPIRED 0x0040 +#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL 0x0010 +#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL 0x0008 +#define SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL 0x0004 +#define SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL 0x0002 +#define SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL 0x0001 + +/*---------------------------------------------------------------------------- + * Register 0x000E:PM3393 Global interrupt enable + * Bit 15 TOP_INTE + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_TOP_INTE 0x8000 + +/*---------------------------------------------------------------------------- + * Register 0x2040: RXXG Configuration 1 + * Bit 15 RXXG_RXEN + * Bit 14 RXXG_ROCF + * Bit 13 RXXG_PAD_STRIP + * Bit 10 RXXG_PUREP + * Bit 9 RXXG_LONGP + * Bit 8 RXXG_PARF + * Bit 7 RXXG_FLCHK + * Bit 5 RXXG_PASS_CTRL + * Bit 3 RXXG_CRC_STRIP + * Bit 2-0 RXXG_MIFG + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_RXXG_RXEN 0x8000 +#define SUNI1x10GEXP_BITMSK_RXXG_PUREP 0x0400 +#define SUNI1x10GEXP_BITMSK_RXXG_FLCHK 0x0080 +#define SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP 0x0008 + +/*---------------------------------------------------------------------------- + * Register 0x2070: RXXG Address Filter Control 2 + * Bit 1 RXXG_PMODE + * Bit 0 RXXG_MHASH_EN + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_RXXG_PMODE 0x0002 +#define SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN 0x0001 + +/*---------------------------------------------------------------------------- + * Register 0x2100: MSTAT Control + * Bit 2 MSTAT_WRITE + * Bit 1 MSTAT_CLEAR + * Bit 0 MSTAT_SNAP + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_MSTAT_CLEAR 0x0002 +#define SUNI1x10GEXP_BITMSK_MSTAT_SNAP 0x0001 + +/*---------------------------------------------------------------------------- + * Register 0x3040: TXXG Configuration Register 1 + * Bit 15 TXXG_TXEN0 + * Bit 13 TXXG_HOSTPAUSE + * Bit 12-7 TXXG_IPGT + * Bit 5 TXXG_32BIT_ALIGN + * Bit 4 TXXG_CRCEN + * Bit 3 TXXG_FCTX + * Bit 2 TXXG_FCRX + * Bit 1 TXXG_PADEN + * Bit 0 TXXG_SPRE + *----------------------------------------------------------------------------*/ +#define SUNI1x10GEXP_BITMSK_TXXG_TXEN0 0x8000 +#define SUNI1x10GEXP_BITOFF_TXXG_IPGT 7 +#define SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN 0x0020 +#define SUNI1x10GEXP_BITMSK_TXXG_CRCEN 0x0010 +#define SUNI1x10GEXP_BITMSK_TXXG_FCTX 0x0008 +#define SUNI1x10GEXP_BITMSK_TXXG_FCRX 0x0004 +#define SUNI1x10GEXP_BITMSK_TXXG_PADEN 0x0002 + +#endif /* _SUNI1x10GEXP_REGS_H */ + diff --git a/drivers/net/chelsio/tp.c b/drivers/net/chelsio/tp.c new file mode 100644 index 0000000..9ad5c53 --- /dev/null +++ b/drivers/net/chelsio/tp.c @@ -0,0 +1,188 @@ +/***************************************************************************** + * * + * File: tp.c * + * $Revision: 1.6 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * Core ASIC Management. * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#include "common.h" +#include "regs.h" +#include "tp.h" + +struct petp { + adapter_t *adapter; +}; + +/* Pause deadlock avoidance parameters */ +#define DROP_MSEC 16 +#define DROP_PKTS_CNT 1 + + +static void tp_init(adapter_t *ap, const struct tp_params *p, + unsigned int tp_clk) +{ + if (t1_is_asic(ap)) { + u32 val; + + val = F_TP_IN_CSPI_CPL | F_TP_IN_CSPI_CHECK_IP_CSUM | + F_TP_IN_CSPI_CHECK_TCP_CSUM | F_TP_IN_ESPI_ETHERNET; + if (!p->pm_size) + val |= F_OFFLOAD_DISABLE; + else + val |= F_TP_IN_ESPI_CHECK_IP_CSUM | + F_TP_IN_ESPI_CHECK_TCP_CSUM; + t1_write_reg_4(ap, A_TP_IN_CONFIG, val); + t1_write_reg_4(ap, A_TP_OUT_CONFIG, F_TP_OUT_CSPI_CPL | + F_TP_OUT_ESPI_ETHERNET | + F_TP_OUT_ESPI_GENERATE_IP_CSUM | + F_TP_OUT_ESPI_GENERATE_TCP_CSUM); + t1_write_reg_4(ap, A_TP_GLOBAL_CONFIG, V_IP_TTL(64) | + F_PATH_MTU /* IP DF bit */ | + V_5TUPLE_LOOKUP(p->use_5tuple_mode) | + V_SYN_COOKIE_PARAMETER(29)); + + /* + * Enable pause frame deadlock prevention. + */ + if (is_T2(ap)) { + u32 drop_ticks = DROP_MSEC * (tp_clk / 1000); + + t1_write_reg_4(ap, A_TP_TX_DROP_CONFIG, + F_ENABLE_TX_DROP | F_ENABLE_TX_ERROR | + V_DROP_TICKS_CNT(drop_ticks) | + V_NUM_PKTS_DROPPED(DROP_PKTS_CNT)); + } + + } +} + +void t1_tp_destroy(struct petp *tp) +{ + kfree(tp); +} + +struct petp * __devinit t1_tp_create(adapter_t *adapter, struct tp_params *p) +{ + struct petp *tp = kmalloc(sizeof(*tp), GFP_KERNEL); + if (!tp) + return NULL; + memset(tp, 0, sizeof(*tp)); + tp->adapter = adapter; + + return tp; +} + +void t1_tp_intr_enable(struct petp *tp) +{ + u32 tp_intr = t1_read_reg_4(tp->adapter, A_PL_ENABLE); + + { + /* We don't use any TP interrupts */ + t1_write_reg_4(tp->adapter, A_TP_INT_ENABLE, 0); + t1_write_reg_4(tp->adapter, A_PL_ENABLE, + tp_intr | F_PL_INTR_TP); + } +} + +void t1_tp_intr_disable(struct petp *tp) +{ + u32 tp_intr = t1_read_reg_4(tp->adapter, A_PL_ENABLE); + + { + t1_write_reg_4(tp->adapter, A_TP_INT_ENABLE, 0); + t1_write_reg_4(tp->adapter, A_PL_ENABLE, + tp_intr & ~F_PL_INTR_TP); + } +} + +void t1_tp_intr_clear(struct petp *tp) +{ + t1_write_reg_4(tp->adapter, A_TP_INT_CAUSE, 0xffffffff); + t1_write_reg_4(tp->adapter, A_PL_CAUSE, F_PL_INTR_TP); +} + +int t1_tp_intr_handler(struct petp *tp) +{ + u32 cause; + + + cause = t1_read_reg_4(tp->adapter, A_TP_INT_CAUSE); + t1_write_reg_4(tp->adapter, A_TP_INT_CAUSE, cause); + return 0; +} + +static void set_csum_offload(struct petp *tp, u32 csum_bit, int enable) +{ + u32 val = t1_read_reg_4(tp->adapter, A_TP_GLOBAL_CONFIG); + + if (enable) + val |= csum_bit; + else + val &= ~csum_bit; + t1_write_reg_4(tp->adapter, A_TP_GLOBAL_CONFIG, val); +} + +void t1_tp_set_ip_checksum_offload(struct petp *tp, int enable) +{ + set_csum_offload(tp, F_IP_CSUM, enable); +} + +void t1_tp_set_udp_checksum_offload(struct petp *tp, int enable) +{ + set_csum_offload(tp, F_UDP_CSUM, enable); +} + +void t1_tp_set_tcp_checksum_offload(struct petp *tp, int enable) +{ + set_csum_offload(tp, F_TCP_CSUM, enable); +} + +/* + * Initialize TP state. tp_params contains initial settings for some TP + * parameters, particularly the one-time PM and CM settings. + */ +int t1_tp_reset(struct petp *tp, struct tp_params *p, unsigned int tp_clk) +{ + int busy = 0; + adapter_t *adapter = tp->adapter; + + tp_init(adapter, p, tp_clk); + if (!busy) + t1_write_reg_4(adapter, A_TP_RESET, F_TP_RESET); + else + CH_ERR("%s: TP initialization timed out\n", + adapter->name); + return busy; +} diff --git a/drivers/net/chelsio/tp.h b/drivers/net/chelsio/tp.h new file mode 100644 index 0000000..2ebc5c0 --- /dev/null +++ b/drivers/net/chelsio/tp.h @@ -0,0 +1,110 @@ +/***************************************************************************** + * * + * File: tp.h * + * $Revision: 1.3 $ * + * $Date: 2005/03/23 07:15:59 $ * + * Description: * + * part of the Chelsio 10Gb Ethernet Driver. * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License, version 2, as * + * published by the Free Software Foundation. * + * * + * You should have received a copy of the GNU General Public License along * + * with this program; if not, write to the Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * + * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * + * * + * http://www.chelsio.com * + * * + * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * + * All rights reserved. * + * * + * Maintainers: maintainers@chelsio.com * + * * + * Authors: Dimitrios Michailidis * + * Tina Yang * + * Felix Marti * + * Scott Bardone * + * Kurt Ottaway * + * Frank DiMambro * + * * + * History: * + * * + ****************************************************************************/ + +#ifndef CHELSIO_TP_H +#define CHELSIO_TP_H + +#include "common.h" + +#define TP_MAX_RX_COALESCING_SIZE 16224U + +struct tp_mib_statistics { + + /* IP */ + u32 ipInReceive_hi; + u32 ipInReceive_lo; + u32 ipInHdrErrors_hi; + u32 ipInHdrErrors_lo; + u32 ipInAddrErrors_hi; + u32 ipInAddrErrors_lo; + u32 ipInUnknownProtos_hi; + u32 ipInUnknownProtos_lo; + u32 ipInDiscards_hi; + u32 ipInDiscards_lo; + u32 ipInDelivers_hi; + u32 ipInDelivers_lo; + u32 ipOutRequests_hi; + u32 ipOutRequests_lo; + u32 ipOutDiscards_hi; + u32 ipOutDiscards_lo; + u32 ipOutNoRoutes_hi; + u32 ipOutNoRoutes_lo; + u32 ipReasmTimeout; + u32 ipReasmReqds; + u32 ipReasmOKs; + u32 ipReasmFails; + + u32 reserved[8]; + + /* TCP */ + u32 tcpActiveOpens; + u32 tcpPassiveOpens; + u32 tcpAttemptFails; + u32 tcpEstabResets; + u32 tcpOutRsts; + u32 tcpCurrEstab; + u32 tcpInSegs_hi; + u32 tcpInSegs_lo; + u32 tcpOutSegs_hi; + u32 tcpOutSegs_lo; + u32 tcpRetransSeg_hi; + u32 tcpRetransSeg_lo; + u32 tcpInErrs_hi; + u32 tcpInErrs_lo; + u32 tcpRtoMin; + u32 tcpRtoMax; +}; + +struct petp; +struct tp_params; + +struct petp *t1_tp_create(adapter_t *adapter, struct tp_params *p); +void t1_tp_destroy(struct petp *tp); + +void t1_tp_intr_disable(struct petp *tp); +void t1_tp_intr_enable(struct petp *tp); +void t1_tp_intr_clear(struct petp *tp); +int t1_tp_intr_handler(struct petp *tp); + +void t1_tp_get_mib_statistics(adapter_t *adap, struct tp_mib_statistics *tps); +void t1_tp_set_udp_checksum_offload(struct petp *tp, int enable); +void t1_tp_set_tcp_checksum_offload(struct petp *tp, int enable); +void t1_tp_set_ip_checksum_offload(struct petp *tp, int enable); +int t1_tp_set_coalescing_size(struct petp *tp, unsigned int size); +int t1_tp_reset(struct petp *tp, struct tp_params *p, unsigned int tp_clk); +#endif -- cgit v0.10.2 From 0a989b24fd59e8867274246587b46f5595fa0baa Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Mon, 11 Apr 2005 16:52:15 -0700 Subject: [PATCH] net/ieee80211/ieee80211_tx.c: swapped memset arguments Fix swapped memset() arguments in net/ieee80211/ieee80211_tx.c found by Maciej Soltysiak. Patch by Jesper Juhl. Signed-off-by: Jesper Juhl Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c index d70e6b8..308fcd9 100644 --- a/net/ieee80211/ieee80211_tx.c +++ b/net/ieee80211/ieee80211_tx.c @@ -223,7 +223,7 @@ struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size, if (!txb) return NULL; - memset(txb, sizeof(struct ieee80211_txb), 0); + memset(txb, 0, sizeof(struct ieee80211_txb)); txb->nr_frags = nr_frags; txb->frag_size = txb_size; -- cgit v0.10.2 From 2c86c275015c880e810830304a3a4ab94803b38b Mon Sep 17 00:00:00 2001 From: James Ketrenos Date: Wed, 23 Mar 2005 17:32:29 -0600 Subject: Add ipw2100 wireless driver. diff --git a/Documentation/networking/README.ipw2100 b/Documentation/networking/README.ipw2100 new file mode 100644 index 0000000..2046948 --- /dev/null +++ b/Documentation/networking/README.ipw2100 @@ -0,0 +1,246 @@ + +=========================== +Intel(R) PRO/Wireless 2100 Network Connection Driver for Linux +README.ipw2100 + +March 14, 2005 + +=========================== +Index +--------------------------- +0. Introduction +1. Release 1.1.0 Current Features +2. Command Line Parameters +3. Sysfs Helper Files +4. Radio Kill Switch +5. Dynamic Firmware +6. Power Management +7. Support +8. License + + +=========================== +0. Introduction +------------ ----- ----- ---- --- -- - + +This document provides a brief overview of the features supported by the +IPW2100 driver project. The main project website, where the latest +development version of the driver can be found, is: + + http://ipw2100.sourceforge.net + +There you can find the not only the latest releases, but also information about +potential fixes and patches, as well as links to the development mailing list +for the driver project. + + +=========================== +1. Release 1.1.0 Current Supported Features +--------------------------- +- Managed (BSS) and Ad-Hoc (IBSS) +- WEP (shared key and open) +- Wireless Tools support +- 802.1x (tested with XSupplicant 1.0.1) + +Enabled (but not supported) features: +- Monitor/RFMon mode +- WPA/WPA2 + +The distinction between officially supported and enabled is a reflection +on the amount of validation and interoperability testing that has been +performed on a given feature. + + +=========================== +2. Command Line Parameters +--------------------------- + +If the driver is built as a module, the following optional parameters are used +by entering them on the command line with the modprobe command using this +syntax: + + modprobe ipw2100 [