diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
commit | cf816ecb533ab96b883dfdc0db174598b5b5c4d2 (patch) | |
tree | 1b7705db288ae2917105e624b01fdf81e0882bf1 /net/mac80211/tx.c | |
parent | adf6d34e460387ee3e8f1e1875d52bff51212c7d (diff) | |
parent | 15f7d677ccff6f0f5de8a1ee43a792567e9f9de9 (diff) | |
download | linux-fsl-qoriq-cf816ecb533ab96b883dfdc0db174598b5b5c4d2.tar.xz |
Merge branch 'merge-fixes' into devel
Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r-- | net/mac80211/tx.c | 732 |
1 files changed, 433 insertions, 299 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 67b509e..f35eaea9 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -25,11 +25,12 @@ #include <asm/unaligned.h> #include "ieee80211_i.h" -#include "ieee80211_led.h" +#include "led.h" +#include "mesh.h" #include "wep.h" #include "wpa.h" #include "wme.h" -#include "ieee80211_rate.h" +#include "rate.h" #define IEEE80211_TX_OK 0 #define IEEE80211_TX_AGAIN 1 @@ -86,15 +87,19 @@ static inline void ieee80211_dump_frame(const char *ifname, const char *title, } #endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */ -static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr, +static u16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr, int next_frag_len) { int rate, mrate, erp, dur, i; - struct ieee80211_rate *txrate = tx->u.tx.rate; + struct ieee80211_rate *txrate = tx->rate; struct ieee80211_local *local = tx->local; - struct ieee80211_hw_mode *mode = tx->u.tx.mode; + struct ieee80211_supported_band *sband; - erp = txrate->flags & IEEE80211_RATE_ERP; + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; + + erp = 0; + if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) + erp = txrate->flags & IEEE80211_RATE_ERP_G; /* * data and mgmt (except PS Poll): @@ -150,20 +155,36 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr, * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps */ rate = -1; - mrate = 10; /* use 1 Mbps if everything fails */ - for (i = 0; i < mode->num_rates; i++) { - struct ieee80211_rate *r = &mode->rates[i]; - if (r->rate > txrate->rate) - break; + /* use lowest available if everything fails */ + mrate = sband->bitrates[0].bitrate; + for (i = 0; i < sband->n_bitrates; i++) { + struct ieee80211_rate *r = &sband->bitrates[i]; - if (IEEE80211_RATE_MODULATION(txrate->flags) != - IEEE80211_RATE_MODULATION(r->flags)) - continue; + if (r->bitrate > txrate->bitrate) + break; - if (r->flags & IEEE80211_RATE_BASIC) - rate = r->rate; - else if (r->flags & IEEE80211_RATE_MANDATORY) - mrate = r->rate; + if (tx->sdata->basic_rates & BIT(i)) + rate = r->bitrate; + + switch (sband->band) { + case IEEE80211_BAND_2GHZ: { + u32 flag; + if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) + flag = IEEE80211_RATE_MANDATORY_G; + else + flag = IEEE80211_RATE_MANDATORY_B; + if (r->flags & flag) + mrate = r->bitrate; + break; + } + case IEEE80211_BAND_5GHZ: + if (r->flags & IEEE80211_RATE_MANDATORY_A) + mrate = r->bitrate; + break; + case IEEE80211_NUM_BANDS: + WARN_ON(1); + break; + } } if (rate == -1) { /* No matching basic rate found; use highest suitable mandatory @@ -184,7 +205,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr, dur *= 2; /* ACK + SIFS */ /* next fragment */ dur += ieee80211_frame_duration(local, next_frag_len, - txrate->rate, erp, + txrate->bitrate, erp, tx->sdata->bss_conf.use_short_preamble); } @@ -212,8 +233,8 @@ static int inline is_ieee80211_device(struct net_device *dev, /* tx handlers */ -static ieee80211_txrx_result -ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG struct sk_buff *skb = tx->skb; @@ -221,20 +242,23 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ u32 sta_flags; - if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) - return TXRX_CONTINUE; + if (unlikely(tx->flags & IEEE80211_TX_INJECTED)) + return TX_CONTINUE; if (unlikely(tx->local->sta_sw_scanning) && ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ)) - return TXRX_DROP; + return TX_DROP; - if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED) - return TXRX_CONTINUE; + if (tx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) + return TX_CONTINUE; + + if (tx->flags & IEEE80211_TX_PS_BUFFERED) + return TX_CONTINUE; sta_flags = tx->sta ? tx->sta->flags : 0; - if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) { + if (likely(tx->flags & IEEE80211_TX_UNICAST)) { if (unlikely(!(sta_flags & WLAN_STA_ASSOC) && tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS && (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) { @@ -245,7 +269,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) tx->dev->name, print_mac(mac, hdr->addr1)); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc); - return TXRX_DROP; + return TX_DROP; } } else { if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && @@ -255,23 +279,23 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) * No associated STAs - no need to send multicast * frames. */ - return TXRX_DROP; + return TX_DROP; } - return TXRX_CONTINUE; + return TX_CONTINUE; } - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24) ieee80211_include_sequence(tx->sdata, hdr); - return TXRX_CONTINUE; + return TX_CONTINUE; } /* This function is called whenever the AP is about to exceed the maximum limit @@ -303,10 +327,8 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) } total += skb_queue_len(&ap->ps_bc_buf); } - rcu_read_unlock(); - read_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { + list_for_each_entry_rcu(sta, &local->sta_list, list) { skb = skb_dequeue(&sta->ps_tx_buf); if (skb) { purged++; @@ -314,15 +336,16 @@ static void purge_old_ps_buffers(struct ieee80211_local *local) } total += skb_queue_len(&sta->ps_tx_buf); } - read_unlock_bh(&local->sta_lock); + + rcu_read_unlock(); local->total_ps_buffered = total; printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n", wiphy_name(local->hw.wiphy), purged); } -static ieee80211_txrx_result -ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx) { /* * broadcast/multicast frame @@ -334,11 +357,11 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx) /* not AP/IBSS or ordered frame */ if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER)) - return TXRX_CONTINUE; + return TX_CONTINUE; /* no stations in PS mode */ if (!atomic_read(&tx->sdata->bss->num_sta_ps)) - return TXRX_CONTINUE; + return TX_CONTINUE; /* buffered in mac80211 */ if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) { @@ -355,17 +378,17 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx) } else tx->local->total_ps_buffered++; skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb); - return TXRX_QUEUED; + return TX_QUEUED; } /* buffered in hardware */ - tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM; + tx->control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM; - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) { struct sta_info *sta = tx->sta; DECLARE_MAC_BUF(mac); @@ -373,9 +396,10 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) if (unlikely(!sta || ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP))) - return TXRX_CONTINUE; + return TX_CONTINUE; - if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) { + if (unlikely((sta->flags & WLAN_STA_PS) && + !(sta->flags & WLAN_STA_PSPOLL))) { struct ieee80211_tx_packet_data *pkt_data; #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries " @@ -383,7 +407,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) print_mac(mac, sta->addr), sta->aid, skb_queue_len(&sta->ps_tx_buf)); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - sta->flags |= WLAN_STA_TIM; if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) { @@ -396,18 +419,15 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) dev_kfree_skb(old); } else tx->local->total_ps_buffered++; + /* Queue frame to be sent after STA sends an PS Poll frame */ - if (skb_queue_empty(&sta->ps_tx_buf)) { - if (tx->local->ops->set_tim) - tx->local->ops->set_tim(local_to_hw(tx->local), - sta->aid, 1); - if (tx->sdata->bss) - bss_tim_set(tx->local, tx->sdata->bss, sta->aid); - } + if (skb_queue_empty(&sta->ps_tx_buf)) + sta_info_set_tim_bit(sta); + pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb; pkt_data->jiffies = jiffies; skb_queue_tail(&sta->ps_tx_buf, tx->skb); - return TXRX_QUEUED; + return TX_QUEUED; } #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG else if (unlikely(sta->flags & WLAN_STA_PS)) { @@ -416,40 +436,40 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) print_mac(mac, sta->addr)); } #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - sta->pspoll = 0; + sta->flags &= ~WLAN_STA_PSPOLL; - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx) { - if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)) - return TXRX_CONTINUE; + if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED)) + return TX_CONTINUE; - if (tx->flags & IEEE80211_TXRXD_TXUNICAST) + if (tx->flags & IEEE80211_TX_UNICAST) return ieee80211_tx_h_unicast_ps_buf(tx); else return ieee80211_tx_h_multicast_ps_buf(tx); } -static ieee80211_txrx_result -ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) { struct ieee80211_key *key; u16 fc = tx->fc; - if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) + if (unlikely(tx->control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) tx->key = NULL; else if (tx->sta && (key = rcu_dereference(tx->sta->key))) tx->key = key; else if ((key = rcu_dereference(tx->sdata->default_key))) tx->key = key; else if (tx->sdata->drop_unencrypted && - !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) && - !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) { + !(tx->control->flags & IEEE80211_TXCTL_EAPOL_FRAME) && + !(tx->flags & IEEE80211_TX_INJECTED)) { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); - return TXRX_DROP; + return TX_DROP; } else tx->key = NULL; @@ -476,13 +496,13 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) } if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) - tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; + tx->control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; size_t hdrlen, per_fragm, num_fragm, payload_len, left; @@ -492,8 +512,8 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) u8 *pos; int frag_threshold = tx->local->fragmentation_threshold; - if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED)) - return TXRX_CONTINUE; + if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) + return TX_CONTINUE; first = tx->skb; @@ -544,10 +564,10 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) } skb_trim(first, hdrlen + per_fragm); - tx->u.tx.num_extra_frag = num_fragm - 1; - tx->u.tx.extra_frag = frags; + tx->num_extra_frag = num_fragm - 1; + tx->extra_frag = frags; - return TXRX_CONTINUE; + return TX_CONTINUE; fail: printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name); @@ -558,14 +578,14 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) kfree(frags); } I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment); - return TXRX_DROP; + return TX_DROP; } -static ieee80211_txrx_result -ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx) { if (!tx->key) - return TXRX_CONTINUE; + return TX_CONTINUE; switch (tx->key->conf.alg) { case ALG_WEP: @@ -578,59 +598,60 @@ ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx) /* not reached */ WARN_ON(1); - return TXRX_DROP; + return TX_DROP; } -static ieee80211_txrx_result -ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx) { struct rate_selection rsel; + struct ieee80211_supported_band *sband; + + sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band]; - if (likely(!tx->u.tx.rate)) { - rate_control_get_rate(tx->dev, tx->u.tx.mode, tx->skb, &rsel); - tx->u.tx.rate = rsel.rate; - if (unlikely(rsel.probe != NULL)) { - tx->u.tx.control->flags |= + if (likely(!tx->rate)) { + rate_control_get_rate(tx->dev, sband, tx->skb, &rsel); + tx->rate = rsel.rate; + if (unlikely(rsel.probe)) { + tx->control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE; - tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val; - tx->u.tx.rate = rsel.probe; + tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; + tx->control->alt_retry_rate = tx->rate; + tx->rate = rsel.probe; } else - tx->u.tx.control->alt_retry_rate = -1; + tx->control->alt_retry_rate = NULL; - if (!tx->u.tx.rate) - return TXRX_DROP; + if (!tx->rate) + return TX_DROP; } else - tx->u.tx.control->alt_retry_rate = -1; + tx->control->alt_retry_rate = NULL; - if (tx->u.tx.mode->mode == MODE_IEEE80211G && - tx->sdata->bss_conf.use_cts_prot && - (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) { - tx->u.tx.last_frag_rate = tx->u.tx.rate; + if (tx->sdata->bss_conf.use_cts_prot && + (tx->flags & IEEE80211_TX_FRAGMENTED) && rsel.nonerp) { + tx->last_frag_rate = tx->rate; if (rsel.probe) - tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG; + tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG; else - tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - tx->u.tx.rate = rsel.nonerp; - tx->u.tx.control->rate = rsel.nonerp; - tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE; + tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG; + tx->rate = rsel.nonerp; + tx->control->tx_rate = rsel.nonerp; + tx->control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE; } else { - tx->u.tx.last_frag_rate = tx->u.tx.rate; - tx->u.tx.control->rate = tx->u.tx.rate; + tx->last_frag_rate = tx->rate; + tx->control->tx_rate = tx->rate; } - tx->u.tx.control->tx_rate = tx->u.tx.rate->val; + tx->control->tx_rate = tx->rate; - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_misc(struct ieee80211_tx_data *tx) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; u16 fc = le16_to_cpu(hdr->frame_control); u16 dur; - struct ieee80211_tx_control *control = tx->u.tx.control; - struct ieee80211_hw_mode *mode = tx->u.tx.mode; + struct ieee80211_tx_control *control = tx->control; if (!control->retry_limit) { if (!is_multicast_ether_addr(hdr->addr1)) { @@ -652,20 +673,20 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) } } - if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) { + if (tx->flags & IEEE80211_TX_FRAGMENTED) { /* Do not use multiple retry rates when sending fragmented * frames. * TODO: The last fragment could still use multiple retry * rates. */ - control->alt_retry_rate = -1; + control->alt_retry_rate = NULL; } /* Use CTS protection for unicast frames sent using extended rates if * there are associated non-ERP stations and RTS/CTS is not configured * for the frame. */ - if (mode->mode == MODE_IEEE80211G && - (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) && - (tx->flags & IEEE80211_TXRXD_TXUNICAST) && + if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) && + (tx->rate->flags & IEEE80211_RATE_ERP_G) && + (tx->flags & IEEE80211_TX_UNICAST) && tx->sdata->bss_conf.use_cts_prot && !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS)) control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT; @@ -674,62 +695,77 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) * short preambles at the selected rate and short preambles are * available on the network at the current point in time. */ if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) && - (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) && + (tx->rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && tx->sdata->bss_conf.use_short_preamble && (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) { - tx->u.tx.control->tx_rate = tx->u.tx.rate->val2; + tx->control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE; } /* Setup duration field for the first fragment of the frame. Duration * for remaining fragments will be updated when they are being sent * to low-level driver in ieee80211_tx(). */ dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1), - (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ? - tx->u.tx.extra_frag[0]->len : 0); + (tx->flags & IEEE80211_TX_FRAGMENTED) ? + tx->extra_frag[0]->len : 0); hdr->duration_id = cpu_to_le16(dur); if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) || (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) { - struct ieee80211_rate *rate; + struct ieee80211_supported_band *sband; + struct ieee80211_rate *rate, *baserate; + int idx; + + sband = tx->local->hw.wiphy->bands[ + tx->local->hw.conf.channel->band]; /* Do not use multiple retry rates when using RTS/CTS */ - control->alt_retry_rate = -1; + control->alt_retry_rate = NULL; /* Use min(data rate, max base rate) as CTS/RTS rate */ - rate = tx->u.tx.rate; - while (rate > mode->rates && - !(rate->flags & IEEE80211_RATE_BASIC)) - rate--; + rate = tx->rate; + baserate = NULL; + + for (idx = 0; idx < sband->n_bitrates; idx++) { + if (sband->bitrates[idx].bitrate > rate->bitrate) + continue; + if (tx->sdata->basic_rates & BIT(idx) && + (!baserate || + (baserate->bitrate < sband->bitrates[idx].bitrate))) + baserate = &sband->bitrates[idx]; + } - control->rts_cts_rate = rate->val; - control->rts_rate = rate; + if (baserate) + control->rts_cts_rate = baserate; + else + control->rts_cts_rate = &sband->bitrates[0]; } if (tx->sta) { + control->aid = tx->sta->aid; tx->sta->tx_packets++; tx->sta->tx_fragments++; tx->sta->tx_bytes += tx->skb->len; - if (tx->u.tx.extra_frag) { + if (tx->extra_frag) { int i; - tx->sta->tx_fragments += tx->u.tx.num_extra_frag; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { + tx->sta->tx_fragments += tx->num_extra_frag; + for (i = 0; i < tx->num_extra_frag; i++) { tx->sta->tx_bytes += - tx->u.tx.extra_frag[i]->len; + tx->extra_frag[i]->len; } } } - return TXRX_CONTINUE; + return TX_CONTINUE; } -static ieee80211_txrx_result -ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) +static ieee80211_tx_result +ieee80211_tx_h_load_stats(struct ieee80211_tx_data *tx) { struct ieee80211_local *local = tx->local; - struct ieee80211_hw_mode *mode = tx->u.tx.mode; struct sk_buff *skb = tx->skb; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; u32 load = 0, hdrtime; + struct ieee80211_rate *rate = tx->rate; /* TODO: this could be part of tx_status handling, so that the number * of retries would be known; TX rate should in that case be stored @@ -740,9 +776,9 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values, * 1 usec = 1/8 * (1080 / 10) = 13.5 */ - if (mode->mode == MODE_IEEE80211A || - (mode->mode == MODE_IEEE80211G && - tx->u.tx.rate->flags & IEEE80211_RATE_ERP)) + if (tx->channel->band == IEEE80211_BAND_5GHZ || + (tx->channel->band == IEEE80211_BAND_2GHZ && + rate->flags & IEEE80211_RATE_ERP_G)) hdrtime = CHAN_UTIL_HDR_SHORT; else hdrtime = CHAN_UTIL_HDR_LONG; @@ -751,19 +787,20 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) if (!is_multicast_ether_addr(hdr->addr1)) load += hdrtime; - if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS) + if (tx->control->flags & IEEE80211_TXCTL_USE_RTS_CTS) load += 2 * hdrtime; - else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) + else if (tx->control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) load += hdrtime; - load += skb->len * tx->u.tx.rate->rate_inv; + /* TODO: optimise again */ + load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate; - if (tx->u.tx.extra_frag) { + if (tx->extra_frag) { int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { + for (i = 0; i < tx->num_extra_frag; i++) { load += 2 * hdrtime; - load += tx->u.tx.extra_frag[i]->len * - tx->u.tx.rate->rate; + load += tx->extra_frag[i]->len * + tx->rate->bitrate; } } @@ -774,13 +811,12 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) tx->sta->channel_use_raw += load; tx->sdata->channel_use_raw += load; - return TXRX_CONTINUE; + return TX_CONTINUE; } -/* TODO: implement register/unregister functions for adding TX/RX handlers - * into ordered list */ -ieee80211_tx_handler ieee80211_tx_handlers[] = +typedef ieee80211_tx_result (*ieee80211_tx_handler)(struct ieee80211_tx_data *); +static ieee80211_tx_handler ieee80211_tx_handlers[] = { ieee80211_tx_h_check_assoc, ieee80211_tx_h_sequence, @@ -801,8 +837,8 @@ ieee80211_tx_handler ieee80211_tx_handlers[] = * deal with packet injection down monitor interface * with Radiotap Header -- only called for monitor mode interface */ -static ieee80211_txrx_result -__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, +static ieee80211_tx_result +__ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx, struct sk_buff *skb) { /* @@ -816,13 +852,15 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, struct ieee80211_radiotap_iterator iterator; struct ieee80211_radiotap_header *rthdr = (struct ieee80211_radiotap_header *) skb->data; - struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode; + struct ieee80211_supported_band *sband; int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); - struct ieee80211_tx_control *control = tx->u.tx.control; + struct ieee80211_tx_control *control = tx->control; + + sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band]; control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - tx->flags |= IEEE80211_TXRXD_TX_INJECTED; - tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED; + tx->flags |= IEEE80211_TX_INJECTED; + tx->flags &= ~IEEE80211_TX_FRAGMENTED; /* * for every radiotap entry that is present @@ -852,11 +890,13 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps */ target_rate = (*iterator.this_arg) * 5; - for (i = 0; i < mode->num_rates; i++) { - struct ieee80211_rate *r = &mode->rates[i]; + for (i = 0; i < sband->n_bitrates; i++) { + struct ieee80211_rate *r; + + r = &sband->bitrates[i]; - if (r->rate == target_rate) { - tx->u.tx.rate = r; + if (r->bitrate == target_rate) { + tx->rate = r; break; } } @@ -870,9 +910,11 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, control->antenna_sel_tx = (*iterator.this_arg) + 1; break; +#if 0 case IEEE80211_RADIOTAP_DBM_TX_POWER: control->power_level = *iterator.this_arg; break; +#endif case IEEE80211_RADIOTAP_FLAGS: if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { @@ -884,7 +926,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, * on transmission */ if (skb->len < (iterator.max_length + FCS_LEN)) - return TXRX_DROP; + return TX_DROP; skb_trim(skb, skb->len - FCS_LEN); } @@ -892,7 +934,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, control->flags &= ~IEEE80211_TXCTL_DO_NOT_ENCRYPT; if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; + tx->flags |= IEEE80211_TX_FRAGMENTED; break; /* @@ -907,7 +949,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, } if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */ - return TXRX_DROP; + return TX_DROP; /* * remove the radiotap header @@ -916,14 +958,14 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, */ skb_pull(skb, iterator.max_length); - return TXRX_CONTINUE; + return TX_CONTINUE; } /* * initialises @tx */ -static ieee80211_txrx_result -__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, +static ieee80211_tx_result +__ieee80211_tx_prepare(struct ieee80211_tx_data *tx, struct sk_buff *skb, struct net_device *dev, struct ieee80211_tx_control *control) @@ -939,18 +981,18 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, tx->dev = dev; /* use original interface */ tx->local = local; tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); - tx->u.tx.control = control; + tx->control = control; /* * Set this flag (used below to indicate "automatic fragmentation"), * it will be cleared/left by radiotap as desired. */ - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; + tx->flags |= IEEE80211_TX_FRAGMENTED; /* process and remove the injection radiotap header */ sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) { - if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP) - return TXRX_DROP; + if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP) + return TX_DROP; /* * __ieee80211_parse_tx_radiotap has now removed @@ -965,27 +1007,27 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, tx->fc = le16_to_cpu(hdr->frame_control); if (is_multicast_ether_addr(hdr->addr1)) { - tx->flags &= ~IEEE80211_TXRXD_TXUNICAST; + tx->flags &= ~IEEE80211_TX_UNICAST; control->flags |= IEEE80211_TXCTL_NO_ACK; } else { - tx->flags |= IEEE80211_TXRXD_TXUNICAST; + tx->flags |= IEEE80211_TX_UNICAST; control->flags &= ~IEEE80211_TXCTL_NO_ACK; } - if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) { - if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) && + if (tx->flags & IEEE80211_TX_FRAGMENTED) { + if ((tx->flags & IEEE80211_TX_UNICAST) && skb->len + FCS_LEN > local->fragmentation_threshold && !local->ops->set_frag_threshold) - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; + tx->flags |= IEEE80211_TX_FRAGMENTED; else - tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED; + tx->flags &= ~IEEE80211_TX_FRAGMENTED; } if (!tx->sta) - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - else if (tx->sta->clear_dst_mask) { - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - tx->sta->clear_dst_mask = 0; + control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT; + else if (tx->sta->flags & WLAN_STA_CLEAR_PS_FILT) { + control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT; + tx->sta->flags &= ~WLAN_STA_CLEAR_PS_FILT; } hdrlen = ieee80211_get_hdrlen(tx->fc); @@ -995,13 +1037,13 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, } control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT; - return TXRX_CONTINUE; + return TX_CONTINUE; } /* * NB: @tx is uninitialised when passed in here */ -static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, +static int ieee80211_tx_prepare(struct ieee80211_tx_data *tx, struct sk_buff *skb, struct net_device *mdev, struct ieee80211_tx_control *control) @@ -1024,9 +1066,9 @@ static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, } static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_txrx_data *tx) + struct ieee80211_tx_data *tx) { - struct ieee80211_tx_control *control = tx->u.tx.control; + struct ieee80211_tx_control *control = tx->control; int ret, i; if (!ieee80211_qdisc_installed(local->mdev) && @@ -1043,20 +1085,20 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, local->mdev->trans_start = jiffies; ieee80211_led_tx(local, 1); } - if (tx->u.tx.extra_frag) { + if (tx->extra_frag) { control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS | IEEE80211_TXCTL_USE_CTS_PROTECT | - IEEE80211_TXCTL_CLEAR_DST_MASK | + IEEE80211_TXCTL_CLEAR_PS_FILT | IEEE80211_TXCTL_FIRST_FRAGMENT); - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (!tx->u.tx.extra_frag[i]) + for (i = 0; i < tx->num_extra_frag; i++) { + if (!tx->extra_frag[i]) continue; if (__ieee80211_queue_stopped(local, control->queue)) return IEEE80211_TX_FRAG_AGAIN; - if (i == tx->u.tx.num_extra_frag) { - control->tx_rate = tx->u.tx.last_frag_hwrate; - control->rate = tx->u.tx.last_frag_rate; - if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG) + if (i == tx->num_extra_frag) { + control->tx_rate = tx->last_frag_rate; + + if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG) control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE; else @@ -1066,18 +1108,18 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, ieee80211_dump_frame(wiphy_name(local->hw.wiphy), "TX to low-level driver", - tx->u.tx.extra_frag[i]); + tx->extra_frag[i]); ret = local->ops->tx(local_to_hw(local), - tx->u.tx.extra_frag[i], + tx->extra_frag[i], control); if (ret) return IEEE80211_TX_FRAG_AGAIN; local->mdev->trans_start = jiffies; ieee80211_led_tx(local, 1); - tx->u.tx.extra_frag[i] = NULL; + tx->extra_frag[i] = NULL; } - kfree(tx->u.tx.extra_frag); - tx->u.tx.extra_frag = NULL; + kfree(tx->extra_frag); + tx->extra_frag = NULL; } return IEEE80211_TX_OK; } @@ -1088,8 +1130,8 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct sta_info *sta; ieee80211_tx_handler *handler; - struct ieee80211_txrx_data tx; - ieee80211_txrx_result res = TXRX_DROP, res_prepare; + struct ieee80211_tx_data tx; + ieee80211_tx_result res = TX_DROP, res_prepare; int ret, i; WARN_ON(__ieee80211_queue_pending(local, control->queue)); @@ -1099,59 +1141,52 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, return 0; } + rcu_read_lock(); + /* initialises tx */ res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control); - if (res_prepare == TXRX_DROP) { + if (res_prepare == TX_DROP) { dev_kfree_skb(skb); + rcu_read_unlock(); return 0; } - /* - * key references are protected using RCU and this requires that - * we are in a read-site RCU section during receive processing - */ - rcu_read_lock(); - sta = tx.sta; - tx.u.tx.mode = local->hw.conf.mode; + tx.channel = local->hw.conf.channel; - for (handler = local->tx_handlers; *handler != NULL; + for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) { res = (*handler)(&tx); - if (res != TXRX_CONTINUE) + if (res != TX_CONTINUE) break; } skb = tx.skb; /* handlers are allowed to change skb */ - if (sta) - sta_info_put(sta); - - if (unlikely(res == TXRX_DROP)) { + if (unlikely(res == TX_DROP)) { I802_DEBUG_INC(local->tx_handlers_drop); goto drop; } - if (unlikely(res == TXRX_QUEUED)) { + if (unlikely(res == TX_QUEUED)) { I802_DEBUG_INC(local->tx_handlers_queued); rcu_read_unlock(); return 0; } - if (tx.u.tx.extra_frag) { - for (i = 0; i < tx.u.tx.num_extra_frag; i++) { + if (tx.extra_frag) { + for (i = 0; i < tx.num_extra_frag; i++) { int next_len, dur; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) - tx.u.tx.extra_frag[i]->data; + tx.extra_frag[i]->data; - if (i + 1 < tx.u.tx.num_extra_frag) { - next_len = tx.u.tx.extra_frag[i + 1]->len; + if (i + 1 < tx.num_extra_frag) { + next_len = tx.extra_frag[i + 1]->len; } else { next_len = 0; - tx.u.tx.rate = tx.u.tx.last_frag_rate; - tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val; + tx.rate = tx.last_frag_rate; } dur = ieee80211_duration(&tx, 0, next_len); hdr->duration_id = cpu_to_le16(dur); @@ -1186,12 +1221,11 @@ retry: memcpy(&store->control, control, sizeof(struct ieee80211_tx_control)); store->skb = skb; - store->extra_frag = tx.u.tx.extra_frag; - store->num_extra_frag = tx.u.tx.num_extra_frag; - store->last_frag_hwrate = tx.u.tx.last_frag_hwrate; - store->last_frag_rate = tx.u.tx.last_frag_rate; + store->extra_frag = tx.extra_frag; + store->num_extra_frag = tx.num_extra_frag; + store->last_frag_rate = tx.last_frag_rate; store->last_frag_rate_ctrl_probe = - !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG); + !!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG); } rcu_read_unlock(); return 0; @@ -1199,10 +1233,10 @@ retry: drop: if (skb) dev_kfree_skb(skb); - for (i = 0; i < tx.u.tx.num_extra_frag; i++) - if (tx.u.tx.extra_frag[i]) - dev_kfree_skb(tx.u.tx.extra_frag[i]); - kfree(tx.u.tx.extra_frag); + for (i = 0; i < tx.num_extra_frag; i++) + if (tx.extra_frag[i]) + dev_kfree_skb(tx.extra_frag[i]); + kfree(tx.extra_frag); rcu_read_unlock(); return 0; } @@ -1260,6 +1294,8 @@ int ieee80211_master_start_xmit(struct sk_buff *skb, control.flags |= IEEE80211_TXCTL_REQUEUE; if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME) control.flags |= IEEE80211_TXCTL_EAPOL_FRAME; + if (pkt_data->flags & IEEE80211_TXPD_AMPDU) + control.flags |= IEEE80211_TXCTL_AMPDU; control.queue = pkt_data->queue; ret = ieee80211_tx(odev, skb, &control); @@ -1346,8 +1382,9 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, struct ieee80211_tx_packet_data *pkt_data; struct ieee80211_sub_if_data *sdata; int ret = 1, head_need; - u16 ethertype, hdrlen, fc; + u16 ethertype, hdrlen, meshhdrlen = 0, fc; struct ieee80211_hdr hdr; + struct ieee80211s_hdr mesh_hdr; const u8 *encaps_data; int encaps_len, skip_header_bytes; int nh_pos, h_pos; @@ -1389,6 +1426,37 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); hdrlen = 30; break; +#ifdef CONFIG_MAC80211_MESH + case IEEE80211_IF_TYPE_MESH_POINT: + fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS; + /* RA TA DA SA */ + if (is_multicast_ether_addr(skb->data)) + memcpy(hdr.addr1, skb->data, ETH_ALEN); + else if (mesh_nexthop_lookup(hdr.addr1, skb, dev)) + return 0; + memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN); + memcpy(hdr.addr3, skb->data, ETH_ALEN); + memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); + if (skb->pkt_type == PACKET_OTHERHOST) { + /* Forwarded frame, keep mesh ttl and seqnum */ + struct ieee80211s_hdr *prev_meshhdr; + prev_meshhdr = ((struct ieee80211s_hdr *)skb->cb); + meshhdrlen = ieee80211_get_mesh_hdrlen(prev_meshhdr); + memcpy(&mesh_hdr, prev_meshhdr, meshhdrlen); + sdata->u.sta.mshstats.fwded_frames++; + } else { + if (!sdata->u.sta.mshcfg.dot11MeshTTL) { + /* Do not send frames with mesh_ttl == 0 */ + sdata->u.sta.mshstats.dropped_frames_ttl++; + ret = 0; + goto fail; + } + meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, + sdata); + } + hdrlen = 30; + break; +#endif case IEEE80211_IF_TYPE_STA: fc |= IEEE80211_FCTL_TODS; /* BSSID SA DA */ @@ -1409,10 +1477,17 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, goto fail; } - sta = sta_info_get(local, hdr.addr1); - if (sta) { - sta_flags = sta->flags; - sta_info_put(sta); + /* + * There's no need to try to look up the destination + * if it is a multicast address (which can only happen + * in AP mode) + */ + if (!is_multicast_ether_addr(hdr.addr1)) { + rcu_read_lock(); + sta = sta_info_get(local, hdr.addr1); + if (sta) + sta_flags = sta->flags; + rcu_read_unlock(); } /* receiver is QoS enabled, use a QoS type frame */ @@ -1422,12 +1497,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, } /* - * If port access control is enabled, drop frames to unauthorised - * stations unless they are EAPOL frames from the local station. + * Drop unicast frames to unauthorised stations unless they are + * EAPOL frames from the local station. */ - if (unlikely(sdata->ieee802_1x_pac && - !(sta_flags & WLAN_STA_AUTHORIZED) && - !(ethertype == ETH_P_PAE && + if (unlikely(!is_multicast_ether_addr(hdr.addr1) && + !(sta_flags & WLAN_STA_AUTHORIZED) && + !(ethertype == ETH_P_PAE && compare_ether_addr(dev->dev_addr, skb->data + ETH_ALEN) == 0))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG @@ -1480,7 +1555,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and * alloc_skb() (net/core/skbuff.c) */ - head_need = hdrlen + encaps_len + local->tx_headroom; + head_need = hdrlen + encaps_len + meshhdrlen + local->tx_headroom; head_need -= skb_headroom(skb); /* We are going to modify skb data, so make a copy of it if happens to @@ -1514,6 +1589,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, h_pos += encaps_len; } + if (meshhdrlen > 0) { + memcpy(skb_push(skb, meshhdrlen), &mesh_hdr, meshhdrlen); + nh_pos += meshhdrlen; + h_pos += meshhdrlen; + } + if (fc & IEEE80211_STYPE_QOS_DATA) { __le16 *qos_control; @@ -1583,7 +1664,7 @@ void ieee80211_tx_pending(unsigned long data) struct ieee80211_local *local = (struct ieee80211_local *)data; struct net_device *dev = local->mdev; struct ieee80211_tx_stored_packet *store; - struct ieee80211_txrx_data tx; + struct ieee80211_tx_data tx; int i, ret, reschedule = 0; netif_tx_lock_bh(dev); @@ -1595,14 +1676,13 @@ void ieee80211_tx_pending(unsigned long data) continue; } store = &local->pending_packet[i]; - tx.u.tx.control = &store->control; - tx.u.tx.extra_frag = store->extra_frag; - tx.u.tx.num_extra_frag = store->num_extra_frag; - tx.u.tx.last_frag_hwrate = store->last_frag_hwrate; - tx.u.tx.last_frag_rate = store->last_frag_rate; + tx.control = &store->control; + tx.extra_frag = store->extra_frag; + tx.num_extra_frag = store->num_extra_frag; + tx.last_frag_rate = store->last_frag_rate; tx.flags = 0; if (store->last_frag_rate_ctrl_probe) - tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; + tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG; ret = __ieee80211_tx(local, store->skb, &tx); if (ret) { if (ret == IEEE80211_TX_FRAG_AGAIN) @@ -1636,7 +1716,6 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local, /* Generate bitmap for TIM only if there are any STAs in power save * mode. */ - read_lock_bh(&local->sta_lock); if (atomic_read(&bss->num_sta_ps) > 0) /* in the hope that this is faster than * checking byte-for-byte */ @@ -1687,7 +1766,6 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local, *pos++ = aid0; /* Bitmap control */ *pos++ = 0; /* Part Virt Bitmap */ } - read_unlock_bh(&local->sta_lock); } struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, @@ -1701,16 +1779,96 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, struct ieee80211_if_ap *ap = NULL; struct rate_selection rsel; struct beacon_data *beacon; + struct ieee80211_supported_band *sband; + struct ieee80211_mgmt *mgmt; + int *num_beacons; + bool err = true; + u8 *pos; + + sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; rcu_read_lock(); sdata = vif_to_sdata(vif); bdev = sdata->dev; - ap = &sdata->u.ap; - beacon = rcu_dereference(ap->beacon); + if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { + ap = &sdata->u.ap; + beacon = rcu_dereference(ap->beacon); + if (ap && beacon) { + /* + * headroom, head length, + * tail length and maximum TIM length + */ + skb = dev_alloc_skb(local->tx_headroom + + beacon->head_len + + beacon->tail_len + 256); + if (!skb) + goto out; + + skb_reserve(skb, local->tx_headroom); + memcpy(skb_put(skb, beacon->head_len), beacon->head, + beacon->head_len); + + ieee80211_include_sequence(sdata, + (struct ieee80211_hdr *)skb->data); + + /* + * Not very nice, but we want to allow the driver to call + * ieee80211_beacon_get() as a response to the set_tim() + * callback. That, however, is already invoked under the + * sta_lock to guarantee consistent and race-free update + * of the tim bitmap in mac80211 and the driver. + */ + if (local->tim_in_locked_section) { + ieee80211_beacon_add_tim(local, ap, skb, beacon); + } else { + unsigned long flags; + + spin_lock_irqsave(&local->sta_lock, flags); + ieee80211_beacon_add_tim(local, ap, skb, beacon); + spin_unlock_irqrestore(&local->sta_lock, flags); + } + + if (beacon->tail) + memcpy(skb_put(skb, beacon->tail_len), + beacon->tail, beacon->tail_len); - if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) { + num_beacons = &ap->num_beacons; + + err = false; + } + } else if (ieee80211_vif_is_mesh(&sdata->vif)) { + /* headroom, head length, tail length and maximum TIM length */ + skb = dev_alloc_skb(local->tx_headroom + 400); + if (!skb) + goto out; + + skb_reserve(skb, local->hw.extra_tx_headroom); + mgmt = (struct ieee80211_mgmt *) + skb_put(skb, 24 + sizeof(mgmt->u.beacon)); + memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon)); + mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, + IEEE80211_STYPE_BEACON); + memset(mgmt->da, 0xff, ETH_ALEN); + memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN); + /* BSSID is left zeroed, wildcard value */ + mgmt->u.beacon.beacon_int = + cpu_to_le16(local->hw.conf.beacon_int); + mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */ + + pos = skb_put(skb, 2); + *pos++ = WLAN_EID_SSID; + *pos++ = 0x0; + + mesh_mgmt_ies_add(skb, sdata->dev); + + num_beacons = &sdata->u.sta.num_beacons; + + err = false; + } + + if (err) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG if (net_ratelimit()) printk(KERN_DEBUG "no beacon data avail for %s\n", @@ -1720,27 +1878,8 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, goto out; } - /* headroom, head length, tail length and maximum TIM length */ - skb = dev_alloc_skb(local->tx_headroom + beacon->head_len + - beacon->tail_len + 256); - if (!skb) - goto out; - - skb_reserve(skb, local->tx_headroom); - memcpy(skb_put(skb, beacon->head_len), beacon->head, - beacon->head_len); - - ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data); - - ieee80211_beacon_add_tim(local, ap, skb, beacon); - - if (beacon->tail) - memcpy(skb_put(skb, beacon->tail_len), beacon->tail, - beacon->tail_len); - if (control) { - rate_control_get_rate(local->mdev, local->oper_hw_mode, skb, - &rsel); + rate_control_get_rate(local->mdev, sband, skb, &rsel); if (!rsel.rate) { if (net_ratelimit()) { printk(KERN_DEBUG "%s: ieee80211_beacon_get: " @@ -1753,20 +1892,17 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, } control->vif = vif; - control->tx_rate = - (sdata->bss_conf.use_short_preamble && - (rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ? - rsel.rate->val2 : rsel.rate->val; + control->tx_rate = rsel.rate; + if (sdata->bss_conf.use_short_preamble && + rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) + control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE; control->antenna_sel_tx = local->hw.conf.antenna_sel_tx; - control->power_level = local->hw.conf.power_level; control->flags |= IEEE80211_TXCTL_NO_ACK; control->retry_limit = 1; - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; + control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT; } - - ap->num_beacons++; - - out: + (*num_beacons)++; +out: rcu_read_unlock(); return skb; } @@ -1814,8 +1950,8 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct sk_buff *skb; struct sta_info *sta; ieee80211_tx_handler *handler; - struct ieee80211_txrx_data tx; - ieee80211_txrx_result res = TXRX_DROP; + struct ieee80211_tx_data tx; + ieee80211_tx_result res = TX_DROP; struct net_device *bdev; struct ieee80211_sub_if_data *sdata; struct ieee80211_if_ap *bss = NULL; @@ -1836,7 +1972,6 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, rcu_read_unlock(); return NULL; } - rcu_read_unlock(); if (bss->dtim_count != 0) return NULL; /* send buffered bc/mc only after DTIM beacon */ @@ -1862,27 +1997,26 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, dev_kfree_skb_any(skb); } sta = tx.sta; - tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED; - tx.u.tx.mode = local->hw.conf.mode; + tx.flags |= IEEE80211_TX_PS_BUFFERED; + tx.channel = local->hw.conf.channel; - for (handler = local->tx_handlers; *handler != NULL; handler++) { + for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) { res = (*handler)(&tx); - if (res == TXRX_DROP || res == TXRX_QUEUED) + if (res == TX_DROP || res == TX_QUEUED) break; } skb = tx.skb; /* handlers are allowed to change skb */ - if (res == TXRX_DROP) { + if (res == TX_DROP) { I802_DEBUG_INC(local->tx_handlers_drop); dev_kfree_skb(skb); skb = NULL; - } else if (res == TXRX_QUEUED) { + } else if (res == TX_QUEUED) { I802_DEBUG_INC(local->tx_handlers_queued); skb = NULL; } - if (sta) - sta_info_put(sta); + rcu_read_unlock(); return skb; } |