Staging: add rt2870 wireless driver

This is the Ralink RT2870 driver from the company that does horrible
things like reading a config file from /etc.  However, the driver that
is currently under development from the wireless development community
is not working at all yet, so distros and users are using this version
instead (quite common hardware on a lot of netbook machines).

So here is this driver, for now, until the wireless developers get a
"clean" version into the main tree, or until this version is cleaned up
sufficiently to move out of the staging tree.

Ported to the Linux build system and cleaned up a bit already by me.

Cc: Linux wireless <linux-wireless@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 357 insertions, 0 deletions

diff --git a/drivers/staging/rt2870/wpa.h b/drivers/staging/rt2870/wpa.h
new file mode 100644
index 0000000..0134ae6
--- /dev/null
+++ b/drivers/staging/rt2870/wpa.h
@@ -0,0 +1,357 @@
+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, Ralink Technology, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify  *
+ * it under the terms of the GNU General Public License as published by  *
+ * the Free Software Foundation; either version 2 of the License, or     *
+ * (at your option) any later version.                                   *
+ *                                                                       *
+ * 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.             *
+ *                                                                       *
+ *************************************************************************
+
+	Module Name:
+	wpa.h
+
+	Abstract:
+
+	Revision History:
+	Who			When			What
+	--------	----------		----------------------------------------------
+	Name		Date			Modification logs
+*/
+
+#ifndef	__WPA_H__
+#define	__WPA_H__
+
+// EAPOL Key descripter frame format related length
+#define LEN_KEY_DESC_NONCE			32
+#define LEN_KEY_DESC_IV				16
+#define LEN_KEY_DESC_RSC			8
+#define LEN_KEY_DESC_ID				8
+#define LEN_KEY_DESC_REPLAY			8
+#define LEN_KEY_DESC_MIC			16
+
+// The length is the EAPoL-Key frame except key data field.
+// Please refer to 802.11i-2004 ,Figure 43u in p.78
+#define LEN_EAPOL_KEY_MSG			(sizeof(KEY_DESCRIPTER) - MAX_LEN_OF_RSNIE)
+
+// EAP Code Type.
+#define EAP_CODE_REQUEST	1
+#define EAP_CODE_RESPONSE	2
+#define EAP_CODE_SUCCESS    3
+#define EAP_CODE_FAILURE    4
+
+// EAPOL frame Protocol Version
+#define	EAPOL_VER					1
+#define	EAPOL_VER2					2
+
+// EAPOL-KEY Descriptor Type
+#define	WPA1_KEY_DESC				0xfe
+#define WPA2_KEY_DESC               0x02
+
+// Key Descriptor Version of Key Information
+#define	DESC_TYPE_TKIP				1
+#define	DESC_TYPE_AES				2
+#define DESC_TYPE_MESH				3
+
+#define LEN_MSG1_2WAY               0x7f
+#define MAX_LEN_OF_EAP_HS           256
+
+#define LEN_MASTER_KEY				32
+
+// EAPOL EK, MK
+#define LEN_EAP_EK					16
+#define LEN_EAP_MICK				16
+#define LEN_EAP_KEY					((LEN_EAP_EK)+(LEN_EAP_MICK))
+// TKIP key related
+#define LEN_PMKID					16
+#define LEN_TKIP_EK					16
+#define LEN_TKIP_RXMICK				8
+#define LEN_TKIP_TXMICK				8
+#define LEN_AES_EK					16
+#define LEN_AES_KEY					LEN_AES_EK
+#define LEN_TKIP_KEY				((LEN_TKIP_EK)+(LEN_TKIP_RXMICK)+(LEN_TKIP_TXMICK))
+#define TKIP_AP_TXMICK_OFFSET		((LEN_EAP_KEY)+(LEN_TKIP_EK))
+#define TKIP_AP_RXMICK_OFFSET		(TKIP_AP_TXMICK_OFFSET+LEN_TKIP_TXMICK)
+#define TKIP_GTK_LENGTH				((LEN_TKIP_EK)+(LEN_TKIP_RXMICK)+(LEN_TKIP_TXMICK))
+#define LEN_PTK						((LEN_EAP_KEY)+(LEN_TKIP_KEY))
+#define MIN_LEN_OF_GTK				5
+
+// RSN IE Length definition
+#define MAX_LEN_OF_RSNIE         	90
+#define MIN_LEN_OF_RSNIE         	8
+
+//EAP Packet Type
+#define	EAPPacket		0
+#define	EAPOLStart		1
+#define	EAPOLLogoff		2
+#define	EAPOLKey		3
+#define	EAPOLASFAlert	4
+#define	EAPTtypeMax		5
+
+#define	EAPOL_MSG_INVALID	0
+#define	EAPOL_PAIR_MSG_1	1
+#define	EAPOL_PAIR_MSG_2	2
+#define	EAPOL_PAIR_MSG_3	3
+#define	EAPOL_PAIR_MSG_4	4
+#define	EAPOL_GROUP_MSG_1	5
+#define	EAPOL_GROUP_MSG_2	6
+
+#define PAIRWISEKEY					1
+#define GROUPKEY					0
+
+// Retry timer counter initial value
+#define PEER_MSG1_RETRY_TIMER_CTR           0
+#define PEER_MSG3_RETRY_TIMER_CTR           10
+#define GROUP_MSG1_RETRY_TIMER_CTR          20
+
+
+#define EAPOL_START_DISABLE					0
+#define EAPOL_START_PSK						1
+#define EAPOL_START_1X						2
+
+#define MIX_CIPHER_WPA_TKIP_ON(x)       (((x) & 0x08) != 0)
+#define MIX_CIPHER_WPA_AES_ON(x)        (((x) & 0x04) != 0)
+#define MIX_CIPHER_WPA2_TKIP_ON(x)      (((x) & 0x02) != 0)
+#define MIX_CIPHER_WPA2_AES_ON(x)       (((x) & 0x01) != 0)
+
+#define ROUND_UP(__x, __y) \
+	(((ULONG)((__x)+((__y)-1))) & ((ULONG)~((__y)-1)))
+
+#define	ADD_ONE_To_64BIT_VAR(_V)		\
+{										\
+	UCHAR	cnt = LEN_KEY_DESC_REPLAY;	\
+	do									\
+	{									\
+		cnt--;							\
+		_V[cnt]++;						\
+		if (cnt == 0)					\
+			break;						\
+	}while (_V[cnt] == 0);				\
+}
+
+#define IS_WPA_CAPABILITY(a)       (((a) >= Ndis802_11AuthModeWPA) && ((a) <= Ndis802_11AuthModeWPA1PSKWPA2PSK))
+
+// EAPOL Key Information definition within Key descriptor format
+typedef	struct PACKED _KEY_INFO
+{
+#ifdef RT_BIG_ENDIAN
+	UCHAR	KeyAck:1;
+    UCHAR	Install:1;
+    UCHAR	KeyIndex:2;
+    UCHAR	KeyType:1;
+    UCHAR	KeyDescVer:3;
+    UCHAR	Rsvd:3;
+    UCHAR	EKD_DL:1;		// EKD for AP; DL for STA
+    UCHAR	Request:1;
+    UCHAR	Error:1;
+    UCHAR	Secure:1;
+    UCHAR	KeyMic:1;
+#else
+	UCHAR	KeyMic:1;
+	UCHAR	Secure:1;
+	UCHAR	Error:1;
+	UCHAR	Request:1;
+	UCHAR	EKD_DL:1;       // EKD for AP; DL for STA
+	UCHAR	Rsvd:3;
+	UCHAR	KeyDescVer:3;
+	UCHAR	KeyType:1;
+	UCHAR	KeyIndex:2;
+	UCHAR	Install:1;
+	UCHAR	KeyAck:1;
+#endif
+}	KEY_INFO, *PKEY_INFO;
+
+// EAPOL Key descriptor format
+typedef	struct PACKED _KEY_DESCRIPTER
+{
+	UCHAR		Type;
+	KEY_INFO	KeyInfo;
+	UCHAR		KeyLength[2];
+	UCHAR		ReplayCounter[LEN_KEY_DESC_REPLAY];
+	UCHAR		KeyNonce[LEN_KEY_DESC_NONCE];
+	UCHAR		KeyIv[LEN_KEY_DESC_IV];
+	UCHAR		KeyRsc[LEN_KEY_DESC_RSC];
+	UCHAR		KeyId[LEN_KEY_DESC_ID];
+	UCHAR		KeyMic[LEN_KEY_DESC_MIC];
+	UCHAR		KeyDataLen[2];
+	UCHAR		KeyData[MAX_LEN_OF_RSNIE];
+}	KEY_DESCRIPTER, *PKEY_DESCRIPTER;
+
+typedef	struct PACKED _EAPOL_PACKET
+{
+	UCHAR	 			ProVer;
+	UCHAR	 			ProType;
+	UCHAR	 			Body_Len[2];
+	KEY_DESCRIPTER		KeyDesc;
+}	EAPOL_PACKET, *PEAPOL_PACKET;
+
+//802.11i D10 page 83
+typedef struct PACKED _GTK_ENCAP
+{
+#ifndef RT_BIG_ENDIAN
+    UCHAR               Kid:2;
+    UCHAR               tx:1;
+    UCHAR               rsv:5;
+    UCHAR               rsv1;
+#else
+    UCHAR               rsv:5;
+    UCHAR               tx:1;
+    UCHAR               Kid:2;
+    UCHAR               rsv1;
+#endif
+    UCHAR               GTK[TKIP_GTK_LENGTH];
+}   GTK_ENCAP, *PGTK_ENCAP;
+
+typedef struct PACKED _KDE_ENCAP
+{
+    UCHAR               Type;
+    UCHAR               Len;
+    UCHAR               OUI[3];
+    UCHAR               DataType;
+    GTK_ENCAP      GTKEncap;
+}   KDE_ENCAP, *PKDE_ENCAP;
+
+// For WPA1
+typedef struct PACKED _RSNIE {
+    UCHAR   oui[4];
+    USHORT  version;
+    UCHAR   mcast[4];
+    USHORT  ucount;
+    struct PACKED {
+        UCHAR oui[4];
+    }ucast[1];
+} RSNIE, *PRSNIE;
+
+// For WPA2
+typedef struct PACKED _RSNIE2 {
+    USHORT  version;
+    UCHAR   mcast[4];
+    USHORT  ucount;
+    struct PACKED {
+        UCHAR oui[4];
+    }ucast[1];
+} RSNIE2, *PRSNIE2;
+
+// AKM Suite
+typedef struct PACKED _RSNIE_AUTH {
+    USHORT acount;
+    struct PACKED {
+        UCHAR oui[4];
+    }auth[1];
+} RSNIE_AUTH,*PRSNIE_AUTH;
+
+typedef	union PACKED _RSN_CAPABILITIES	{
+	struct	PACKED {
+#ifdef RT_BIG_ENDIAN
+        USHORT		Rsvd:10;
+        USHORT		GTKSA_R_Counter:2;
+        USHORT		PTKSA_R_Counter:2;
+        USHORT		No_Pairwise:1;
+		USHORT		PreAuth:1;
+#else
+        USHORT		PreAuth:1;
+		USHORT		No_Pairwise:1;
+		USHORT		PTKSA_R_Counter:2;
+		USHORT		GTKSA_R_Counter:2;
+		USHORT		Rsvd:10;
+#endif
+	}	field;
+	USHORT			word;
+}	RSN_CAPABILITIES, *PRSN_CAPABILITIES;
+
+typedef struct PACKED _EAP_HDR {
+    UCHAR   ProVer;
+    UCHAR   ProType;
+    UCHAR   Body_Len[2];
+    UCHAR   code;
+    UCHAR   identifier;
+    UCHAR   length[2]; // including code and identifier, followed by length-2 octets of data
+} EAP_HDR, *PEAP_HDR;
+
+// For supplicant state machine states. 802.11i Draft 4.1, p. 97
+// We simplified it
+typedef	enum	_WpaState
+{
+	SS_NOTUSE,				// 0
+	SS_START,				// 1
+	SS_WAIT_MSG_3,			// 2
+	SS_WAIT_GROUP,			// 3
+	SS_FINISH,  			// 4
+	SS_KEYUPDATE,			// 5
+}	WPA_STATE;
+
+//
+//	The definition of the cipher combination
+//
+// 	 bit3	bit2  bit1   bit0
+//	+------------+------------+
+// 	|	  WPA	 |	   WPA2   |
+//	+------+-----+------+-----+
+//	| TKIP | AES | TKIP | AES |
+//	|	0  |  1  |   1  |  0  | -> 0x06
+//	|	0  |  1  |   1  |  1  | -> 0x07
+//	|	1  |  0  |   0  |  1  | -> 0x09
+//	|	1  |  0  |   1  |  1  | -> 0x0B
+//	|	1  |  1  |   0  |  1  | -> 0x0D
+//	|	1  |  1  |   1  |  0  | -> 0x0E
+//	|	1  |  1  |   1  |  1  |	-> 0x0F
+//	+------+-----+------+-----+
+//
+typedef	enum	_WpaMixPairCipher
+{
+	MIX_CIPHER_NOTUSE 			= 0x00,
+	WPA_NONE_WPA2_TKIPAES		= 0x03,		// WPA2-TKIPAES
+	WPA_AES_WPA2_TKIP 			= 0x06,
+	WPA_AES_WPA2_TKIPAES		= 0x07,
+	WPA_TKIP_WPA2_AES			= 0x09,
+	WPA_TKIP_WPA2_TKIPAES		= 0x0B,
+	WPA_TKIPAES_WPA2_NONE		= 0x0C,		// WPA-TKIPAES
+	WPA_TKIPAES_WPA2_AES		= 0x0D,
+	WPA_TKIPAES_WPA2_TKIP		= 0x0E,
+	WPA_TKIPAES_WPA2_TKIPAES	= 0x0F,
+}	WPA_MIX_PAIR_CIPHER;
+
+typedef struct PACKED _RSN_IE_HEADER_STRUCT	{
+	UCHAR		Eid;
+	UCHAR		Length;
+	USHORT		Version;	// Little endian format
+}	RSN_IE_HEADER_STRUCT, *PRSN_IE_HEADER_STRUCT;
+
+// Cipher suite selector types
+typedef struct PACKED _CIPHER_SUITE_STRUCT	{
+	UCHAR		Oui[3];
+	UCHAR		Type;
+}	CIPHER_SUITE_STRUCT, *PCIPHER_SUITE_STRUCT;
+
+// Authentication and Key Management suite selector
+typedef struct PACKED _AKM_SUITE_STRUCT	{
+	UCHAR		Oui[3];
+	UCHAR		Type;
+}	AKM_SUITE_STRUCT, *PAKM_SUITE_STRUCT;
+
+// RSN capability
+typedef struct	PACKED _RSN_CAPABILITY	{
+	USHORT		Rsv:10;
+	USHORT		GTKSAReplayCnt:2;
+	USHORT		PTKSAReplayCnt:2;
+	USHORT		NoPairwise:1;
+	USHORT		PreAuth:1;
+}	RSN_CAPABILITY, *PRSN_CAPABILITY;
+
+#endif