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forcedeth: add hardware tx checksumming
[deliverable/linux.git] / include / net / ieee80211.h
CommitLineData
b453872c
JG		 1/*
2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
4 *
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
7 *
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 * <jkmaline@cc.hut.fi>
10 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11 *
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
ebeaddcc 14 * Copyright (c) 2004-2005, Intel Corporation
b453872c
JG		 15 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation. See README and COPYING for
19 * more details.
20 */
21#ifndef IEEE80211_H
22#define IEEE80211_H
74079fdc
JK		 23#include <linux/if_ether.h> /* ETH_ALEN */
24#include <linux/kernel.h> /* ARRAY_SIZE */
b7721ff9 25#include <linux/wireless.h>
b453872c 26
b453872c
JG		 27#define IEEE80211_DATA_LEN 2304
28/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
29 6.2.1.1.2.
30
31 The figure in section 7.1.2 suggests a body size of up to 2312
32 bytes is allowed, which is a bit confusing, I suspect this
33 represents the 2304 bytes of real data, plus a possible 8 bytes of
34 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
35
286d9747
JB		 36#define IEEE80211_1ADDR_LEN 10
37#define IEEE80211_2ADDR_LEN 16
b453872c
JG		 38#define IEEE80211_3ADDR_LEN 24
39#define IEEE80211_4ADDR_LEN 30
40#define IEEE80211_FCS_LEN 4
ee34af37
JK		 41#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
42#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
b453872c
JG		 43
44#define MIN_FRAG_THRESHOLD 256U
45#define MAX_FRAG_THRESHOLD 2346U
46
47/* Frame control field constants */
f241be74 48#define IEEE80211_FCTL_VERS 0x0003
b453872c
JG		 49#define IEEE80211_FCTL_FTYPE 0x000c
50#define IEEE80211_FCTL_STYPE 0x00f0
51#define IEEE80211_FCTL_TODS 0x0100
52#define IEEE80211_FCTL_FROMDS 0x0200
53#define IEEE80211_FCTL_MOREFRAGS 0x0400
54#define IEEE80211_FCTL_RETRY 0x0800
55#define IEEE80211_FCTL_PM 0x1000
f13baae4
JB		 56#define IEEE80211_FCTL_MOREDATA 0x2000
57#define IEEE80211_FCTL_PROTECTED 0x4000
b453872c
JG		 58#define IEEE80211_FCTL_ORDER 0x8000
59
60#define IEEE80211_FTYPE_MGMT 0x0000
61#define IEEE80211_FTYPE_CTL 0x0004
62#define IEEE80211_FTYPE_DATA 0x0008
63
64/* management */
65#define IEEE80211_STYPE_ASSOC_REQ 0x0000
66#define IEEE80211_STYPE_ASSOC_RESP 0x0010
67#define IEEE80211_STYPE_REASSOC_REQ 0x0020
68#define IEEE80211_STYPE_REASSOC_RESP 0x0030
69#define IEEE80211_STYPE_PROBE_REQ 0x0040
70#define IEEE80211_STYPE_PROBE_RESP 0x0050
71#define IEEE80211_STYPE_BEACON 0x0080
72#define IEEE80211_STYPE_ATIM 0x0090
73#define IEEE80211_STYPE_DISASSOC 0x00A0
74#define IEEE80211_STYPE_AUTH 0x00B0
75#define IEEE80211_STYPE_DEAUTH 0x00C0
f13baae4 76#define IEEE80211_STYPE_ACTION 0x00D0
b453872c
JG		 77
78/* control */
79#define IEEE80211_STYPE_PSPOLL 0x00A0
80#define IEEE80211_STYPE_RTS 0x00B0
81#define IEEE80211_STYPE_CTS 0x00C0
82#define IEEE80211_STYPE_ACK 0x00D0
83#define IEEE80211_STYPE_CFEND 0x00E0
84#define IEEE80211_STYPE_CFENDACK 0x00F0
85
86/* data */
87#define IEEE80211_STYPE_DATA 0x0000
88#define IEEE80211_STYPE_DATA_CFACK 0x0010
89#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
90#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
91#define IEEE80211_STYPE_NULLFUNC 0x0040
92#define IEEE80211_STYPE_CFACK 0x0050
93#define IEEE80211_STYPE_CFPOLL 0x0060
94#define IEEE80211_STYPE_CFACKPOLL 0x0070
9e8571af 95#define IEEE80211_STYPE_QOS_DATA 0x0080
b453872c
JG		 96
97#define IEEE80211_SCTL_FRAG 0x000F
98#define IEEE80211_SCTL_SEQ 0xFFF0
99
b453872c
JG		 100/* debug macros */
101
102#ifdef CONFIG_IEEE80211_DEBUG
103extern u32 ieee80211_debug_level;
104#define IEEE80211_DEBUG(level, fmt, args...) \
105do { if (ieee80211_debug_level & (level)) \
106 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
107 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
108#else
109#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
74079fdc 110#endif /* CONFIG_IEEE80211_DEBUG */
e88187ee
JB		 111
112/* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
113
114#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
115#define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
116
117/* escape_essid() is intended to be used in debug (and possibly error)
118 * messages. It should never be used for passing essid to user space. */
119const char *escape_essid(const char *essid, u8 essid_len);
120
b453872c 121/*
e88187ee 122 * To use the debug system:
b453872c
JG		 123 *
124 * If you are defining a new debug classification, simply add it to the #define
125 * list here in the form of:
126 *
127 * #define IEEE80211_DL_xxxx VALUE
128 *
129 * shifting value to the left one bit from the previous entry. xxxx should be
130 * the name of the classification (for example, WEP)
131 *
132 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
133 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
134 * to send output to that classification.
135 *
136 * To add your debug level to the list of levels seen when you perform
137 *
91cb70c1 138 * % cat /proc/net/ieee80211/debug_level
b453872c 139 *
91cb70c1 140 * you simply need to add your entry to the ieee80211_debug_level array.
b453872c 141 *
91cb70c1 142 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
b453872c
JG		 143 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
144 *
145 */
146
147#define IEEE80211_DL_INFO (1<<0)
148#define IEEE80211_DL_WX (1<<1)
149#define IEEE80211_DL_SCAN (1<<2)
150#define IEEE80211_DL_STATE (1<<3)
151#define IEEE80211_DL_MGMT (1<<4)
152#define IEEE80211_DL_FRAG (1<<5)
b453872c
JG		 153#define IEEE80211_DL_DROP (1<<7)
154
155#define IEEE80211_DL_TX (1<<8)
156#define IEEE80211_DL_RX (1<<9)
9e8571af 157#define IEEE80211_DL_QOS (1<<31)
b453872c
JG		 158
159#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
160#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
161#define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
162
163#define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
164#define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
165#define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
166#define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
167#define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
b453872c
JG		 168#define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
169#define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
170#define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
9e8571af 171#define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
b453872c
JG		 172#include <linux/netdevice.h>
173#include <linux/wireless.h>
74079fdc 174#include <linux/if_arp.h> /* ARPHRD_ETHER */
b453872c
JG		 175
176#ifndef WIRELESS_SPY
099c5bb1 177#define WIRELESS_SPY /* enable iwspy support */
b453872c 178#endif
099c5bb1 179#include <net/iw_handler.h> /* new driver API */
b453872c
JG		 180
181#ifndef ETH_P_PAE
74079fdc
JK		 182#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
183#endif /* ETH_P_PAE */
b453872c 184
74079fdc 185#define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
b453872c
JG		 186
187#ifndef ETH_P_80211_RAW
188#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
189#endif
190
191/* IEEE 802.11 defines */
192
193#define P80211_OUI_LEN 3
194
195struct ieee80211_snap_hdr {
196
74079fdc
JK		 197 u8 dsap; /* always 0xAA */
198 u8 ssap; /* always 0xAA */
199 u8 ctrl; /* always 0x03 */
200 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
b453872c
JG		 201
202} __attribute__ ((packed));
203
204#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
205
f13baae4 206#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
b453872c
JG		 207#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
208#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
209
210#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
211#define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
212
213/* Authentication algorithms */
214#define WLAN_AUTH_OPEN 0
215#define WLAN_AUTH_SHARED_KEY 1
216
217#define WLAN_AUTH_CHALLENGE_LEN 128
218
2474385e 219#define WLAN_CAPABILITY_ESS (1<<0)
b453872c
JG		 220#define WLAN_CAPABILITY_IBSS (1<<1)
221#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
222#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
223#define WLAN_CAPABILITY_PRIVACY (1<<4)
224#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
225#define WLAN_CAPABILITY_PBCC (1<<6)
226#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
f13baae4 227#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
42c94e43 228#define WLAN_CAPABILITY_QOS (1<<9)
f13baae4 229#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
42c94e43 230#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
b453872c
JG		 231
232/* Status codes */
95d5185d
JB		 233enum ieee80211_statuscode {
234 WLAN_STATUS_SUCCESS = 0,
235 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
236 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
237 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
238 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
239 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
240 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
241 WLAN_STATUS_CHALLENGE_FAIL = 15,
242 WLAN_STATUS_AUTH_TIMEOUT = 16,
243 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
244 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
245 /* 802.11b */
246 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
247 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
248 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
249 /* 802.11h */
250 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
251 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
252 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
253 /* 802.11g */
254 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
255 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
256 /* 802.11i */
257 WLAN_STATUS_INVALID_IE = 40,
258 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
259 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
260 WLAN_STATUS_INVALID_AKMP = 43,
261 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
262 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
263 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
264};
b453872c
JG		 265
266/* Reason codes */
95d5185d
JB		 267enum ieee80211_reasoncode {
268 WLAN_REASON_UNSPECIFIED = 1,
269 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
270 WLAN_REASON_DEAUTH_LEAVING = 3,
271 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
272 WLAN_REASON_DISASSOC_AP_BUSY = 5,
273 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
274 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
275 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
276 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
277 /* 802.11h */
278 WLAN_REASON_DISASSOC_BAD_POWER = 10,
279 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
280 /* 802.11i */
281 WLAN_REASON_INVALID_IE = 13,
282 WLAN_REASON_MIC_FAILURE = 14,
283 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
284 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
285 WLAN_REASON_IE_DIFFERENT = 17,
286 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
287 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
288 WLAN_REASON_INVALID_AKMP = 20,
289 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
290 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
291 WLAN_REASON_IEEE8021X_FAILED = 23,
292 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
293};
b453872c 294
b453872c
JG		 295#define IEEE80211_STATMASK_SIGNAL (1<<0)
296#define IEEE80211_STATMASK_RSSI (1<<1)
297#define IEEE80211_STATMASK_NOISE (1<<2)
298#define IEEE80211_STATMASK_RATE (1<<3)
299#define IEEE80211_STATMASK_WEMASK 0x7
300
b453872c
JG		 301#define IEEE80211_CCK_MODULATION (1<<0)
302#define IEEE80211_OFDM_MODULATION (1<<1)
303
304#define IEEE80211_24GHZ_BAND (1<<0)
305#define IEEE80211_52GHZ_BAND (1<<1)
306
307#define IEEE80211_CCK_RATE_1MB 0x02
308#define IEEE80211_CCK_RATE_2MB 0x04
309#define IEEE80211_CCK_RATE_5MB 0x0B
310#define IEEE80211_CCK_RATE_11MB 0x16
311#define IEEE80211_OFDM_RATE_6MB 0x0C
312#define IEEE80211_OFDM_RATE_9MB 0x12
313#define IEEE80211_OFDM_RATE_12MB 0x18
314#define IEEE80211_OFDM_RATE_18MB 0x24
315#define IEEE80211_OFDM_RATE_24MB 0x30
316#define IEEE80211_OFDM_RATE_36MB 0x48
317#define IEEE80211_OFDM_RATE_48MB 0x60
318#define IEEE80211_OFDM_RATE_54MB 0x6C
319#define IEEE80211_BASIC_RATE_MASK 0x80
320
321#define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
322#define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
323#define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
324#define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
325#define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
326#define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
327#define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
328#define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
329#define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
330#define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
331#define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
332#define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
333
334#define IEEE80211_CCK_RATES_MASK 0x0000000F
335#define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
336 IEEE80211_CCK_RATE_2MB_MASK)
337#define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
338 IEEE80211_CCK_RATE_5MB_MASK | \
339 IEEE80211_CCK_RATE_11MB_MASK)
340
341#define IEEE80211_OFDM_RATES_MASK 0x00000FF0
342#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
343 IEEE80211_OFDM_RATE_12MB_MASK | \
344 IEEE80211_OFDM_RATE_24MB_MASK)
345#define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
346 IEEE80211_OFDM_RATE_9MB_MASK | \
347 IEEE80211_OFDM_RATE_18MB_MASK | \
348 IEEE80211_OFDM_RATE_36MB_MASK | \
349 IEEE80211_OFDM_RATE_48MB_MASK | \
350 IEEE80211_OFDM_RATE_54MB_MASK)
351#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
352 IEEE80211_CCK_DEFAULT_RATES_MASK)
353
354#define IEEE80211_NUM_OFDM_RATES 8
355#define IEEE80211_NUM_CCK_RATES 4
356#define IEEE80211_OFDM_SHIFT_MASK_A 4
357
b453872c
JG		 358/* NOTE: This data is for statistical purposes; not all hardware provides this
359 * information for frames received. Not setting these will not cause
360 * any adverse affects. */
361struct ieee80211_rx_stats {
362 u32 mac_time;
363 s8 rssi;
364 u8 signal;
365 u8 noise;
74079fdc 366 u16 rate; /* in 100 kbps */
b453872c
JG		 367 u8 received_channel;
368 u8 control;
369 u8 mask;
370 u8 freq;
371 u16 len;
372};
373
374/* IEEE 802.11 requires that STA supports concurrent reception of at least
375 * three fragmented frames. This define can be increased to support more
376 * concurrent frames, but it should be noted that each entry can consume about
377 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
378#define IEEE80211_FRAG_CACHE_LEN 4
379
380struct ieee80211_frag_entry {
381 unsigned long first_frag_time;
382 unsigned int seq;
383 unsigned int last_frag;
384 struct sk_buff *skb;
385 u8 src_addr[ETH_ALEN];
386 u8 dst_addr[ETH_ALEN];
387};
388
389struct ieee80211_stats {
390 unsigned int tx_unicast_frames;
391 unsigned int tx_multicast_frames;
392 unsigned int tx_fragments;
393 unsigned int tx_unicast_octets;
394 unsigned int tx_multicast_octets;
395 unsigned int tx_deferred_transmissions;
396 unsigned int tx_single_retry_frames;
397 unsigned int tx_multiple_retry_frames;
398 unsigned int tx_retry_limit_exceeded;
399 unsigned int tx_discards;
400 unsigned int rx_unicast_frames;
401 unsigned int rx_multicast_frames;
402 unsigned int rx_fragments;
403 unsigned int rx_unicast_octets;
404 unsigned int rx_multicast_octets;
405 unsigned int rx_fcs_errors;
406 unsigned int rx_discards_no_buffer;
407 unsigned int tx_discards_wrong_sa;
408 unsigned int rx_discards_undecryptable;
409 unsigned int rx_message_in_msg_fragments;
410 unsigned int rx_message_in_bad_msg_fragments;
411};
412
413struct ieee80211_device;
414
415#include "ieee80211_crypt.h"
416
f1bf6638
JK		 417#define SEC_KEY_1 (1<<0)
418#define SEC_KEY_2 (1<<1)
419#define SEC_KEY_3 (1<<2)
420#define SEC_KEY_4 (1<<3)
421#define SEC_ACTIVE_KEY (1<<4)
422#define SEC_AUTH_MODE (1<<5)
423#define SEC_UNICAST_GROUP (1<<6)
424#define SEC_LEVEL (1<<7)
425#define SEC_ENABLED (1<<8)
259bf1fd 426#define SEC_ENCRYPT (1<<9)
f1bf6638
JK		 427
428#define SEC_LEVEL_0 0 /* None */
429#define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
430#define SEC_LEVEL_2 2 /* Level 1 + TKIP */
431#define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
432#define SEC_LEVEL_3 4 /* Level 2 + CCMP */
433
e0d369d1
JK		 434#define SEC_ALG_NONE 0
435#define SEC_ALG_WEP 1
436#define SEC_ALG_TKIP 2
437#define SEC_ALG_CCMP 3
438
f1bf6638
JK		 439#define WEP_KEYS 4
440#define WEP_KEY_LEN 13
441#define SCM_KEY_LEN 32
442#define SCM_TEMPORAL_KEY_LENGTH 16
b453872c
JG		 443
444struct ieee80211_security {
445 u16 active_key:2,
f1bf6638
JK		 446 enabled:1,
447 auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
e0d369d1 448 u8 encode_alg[WEP_KEYS];
b453872c 449 u8 key_sizes[WEP_KEYS];
f1bf6638 450 u8 keys[WEP_KEYS][SCM_KEY_LEN];
b453872c
JG		 451 u8 level;
452 u16 flags;
453} __attribute__ ((packed));
454
b453872c
JG		 455/*
456
457 802.11 data frame from AP
458
459 ,-------------------------------------------------------------------.
460Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
461 |------|------|---------|---------|---------|------|---------|------|
462Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
463 | | tion | (BSSID) | | | ence | data | |
464 `-------------------------------------------------------------------'
465
466Total: 28-2340 bytes
467
468*/
469
b453872c
JG		 470#define BEACON_PROBE_SSID_ID_POSITION 12
471
472/* Management Frame Information Element Types */
95d5185d
JB		 473enum ieee80211_mfie {
474 MFIE_TYPE_SSID = 0,
475 MFIE_TYPE_RATES = 1,
476 MFIE_TYPE_FH_SET = 2,
477 MFIE_TYPE_DS_SET = 3,
74079fdc 478 MFIE_TYPE_CF_SET = 4,
95d5185d
JB		 479 MFIE_TYPE_TIM = 5,
480 MFIE_TYPE_IBSS_SET = 6,
481 MFIE_TYPE_COUNTRY = 7,
482 MFIE_TYPE_HOP_PARAMS = 8,
483 MFIE_TYPE_HOP_TABLE = 9,
484 MFIE_TYPE_REQUEST = 10,
485 MFIE_TYPE_CHALLENGE = 16,
486 MFIE_TYPE_POWER_CONSTRAINT = 32,
487 MFIE_TYPE_POWER_CAPABILITY = 33,
488 MFIE_TYPE_TPC_REQUEST = 34,
489 MFIE_TYPE_TPC_REPORT = 35,
490 MFIE_TYPE_SUPP_CHANNELS = 36,
491 MFIE_TYPE_CSA = 37,
492 MFIE_TYPE_MEASURE_REQUEST = 38,
493 MFIE_TYPE_MEASURE_REPORT = 39,
494 MFIE_TYPE_QUIET = 40,
495 MFIE_TYPE_IBSS_DFS = 41,
496 MFIE_TYPE_ERP_INFO = 42,
497 MFIE_TYPE_RSN = 48,
498 MFIE_TYPE_RATES_EX = 50,
499 MFIE_TYPE_GENERIC = 221,
9e8571af 500 MFIE_TYPE_QOS_PARAMETER = 222,
95d5185d 501};
b453872c 502
ee34af37
JK		 503/* Minimal header; can be used for passing 802.11 frames with sufficient
504 * information to determine what type of underlying data type is actually
505 * stored in the data. */
506struct ieee80211_hdr {
cdcfc210
JK		 507 __le16 frame_ctl;
508 __le16 duration_id;
ee34af37
JK		 509 u8 payload[0];
510} __attribute__ ((packed));
511
512struct ieee80211_hdr_1addr {
cdcfc210
JK		 513 __le16 frame_ctl;
514 __le16 duration_id;
ee34af37
JK		 515 u8 addr1[ETH_ALEN];
516 u8 payload[0];
517} __attribute__ ((packed));
518
519struct ieee80211_hdr_2addr {
cdcfc210
JK		 520 __le16 frame_ctl;
521 __le16 duration_id;
ee34af37
JK		 522 u8 addr1[ETH_ALEN];
523 u8 addr2[ETH_ALEN];
524 u8 payload[0];
525} __attribute__ ((packed));
526
527struct ieee80211_hdr_3addr {
cdcfc210
JK		 528 __le16 frame_ctl;
529 __le16 duration_id;
ee34af37
JK		 530 u8 addr1[ETH_ALEN];
531 u8 addr2[ETH_ALEN];
532 u8 addr3[ETH_ALEN];
cdcfc210 533 __le16 seq_ctl;
ee34af37
JK		 534 u8 payload[0];
535} __attribute__ ((packed));
536
537struct ieee80211_hdr_4addr {
cdcfc210
JK		 538 __le16 frame_ctl;
539 __le16 duration_id;
ee34af37
JK		 540 u8 addr1[ETH_ALEN];
541 u8 addr2[ETH_ALEN];
542 u8 addr3[ETH_ALEN];
cdcfc210 543 __le16 seq_ctl;
ee34af37
JK		 544 u8 addr4[ETH_ALEN];
545 u8 payload[0];
546} __attribute__ ((packed));
547
9e8571af 548struct ieee80211_hdr_3addrqos {
cdcfc210
JK		 549 __le16 frame_ctl;
550 __le16 duration_id;
9e8571af
JK		 551 u8 addr1[ETH_ALEN];
552 u8 addr2[ETH_ALEN];
553 u8 addr3[ETH_ALEN];
cdcfc210 554 __le16 seq_ctl;
9e8571af 555 u8 payload[0];
cdcfc210 556 __le16 qos_ctl;
9e8571af
JK		 557} __attribute__ ((packed));
558
559struct ieee80211_hdr_4addrqos {
cdcfc210
JK		 560 __le16 frame_ctl;
561 __le16 duration_id;
9e8571af
JK		 562 u8 addr1[ETH_ALEN];
563 u8 addr2[ETH_ALEN];
564 u8 addr3[ETH_ALEN];
cdcfc210 565 __le16 seq_ctl;
9e8571af
JK		 566 u8 addr4[ETH_ALEN];
567 u8 payload[0];
cdcfc210 568 __le16 qos_ctl;
9e8571af
JK		 569} __attribute__ ((packed));
570
b453872c
JG		 571struct ieee80211_info_element {
572 u8 id;
573 u8 len;
574 u8 data[0];
575} __attribute__ ((packed));
576
577/*
578 * These are the data types that can make up management packets
579 *
580 u16 auth_algorithm;
581 u16 auth_sequence;
582 u16 beacon_interval;
583 u16 capability;
584 u8 current_ap[ETH_ALEN];
585 u16 listen_interval;
586 struct {
587 u16 association_id:14, reserved:2;
588 } __attribute__ ((packed));
589 u32 time_stamp[2];
590 u16 reason;
591 u16 status;
592*/
593
ee34af37 594struct ieee80211_auth {
286d9747 595 struct ieee80211_hdr_3addr header;
099c5bb1
JB		 596 __le16 algorithm;
597 __le16 transaction;
598 __le16 status;
68e4e036 599 struct ieee80211_info_element info_element[0];
b453872c
JG		 600} __attribute__ ((packed));
601
ee34af37
JK		 602struct ieee80211_disassoc {
603 struct ieee80211_hdr_3addr header;
cdcfc210 604 __le16 reason_code;
ee34af37
JK		 605 struct ieee80211_info_element info_element[0];
606} __attribute__ ((packed));
607
608struct ieee80211_probe_request {
609 struct ieee80211_hdr_3addr header;
610 struct ieee80211_info_element info_element[0];
611} __attribute__ ((packed));
612
b453872c 613struct ieee80211_probe_response {
286d9747 614 struct ieee80211_hdr_3addr header;
b453872c 615 u32 time_stamp[2];
099c5bb1
JB		 616 __le16 beacon_interval;
617 __le16 capability;
68e4e036 618 struct ieee80211_info_element info_element[0];
b453872c
JG		 619} __attribute__ ((packed));
620
ee34af37
JK		 621/* Alias beacon for probe_response */
622#define ieee80211_beacon ieee80211_probe_response
623
624struct ieee80211_assoc_request {
625 struct ieee80211_hdr_3addr header;
cdcfc210
JK		 626 __le16 capability;
627 __le16 listen_interval;
ee34af37
JK		 628 struct ieee80211_info_element info_element[0];
629} __attribute__ ((packed));
630
631struct ieee80211_reassoc_request {
632 struct ieee80211_hdr_3addr header;
099c5bb1
JB		 633 __le16 capability;
634 __le16 listen_interval;
b453872c 635 u8 current_ap[ETH_ALEN];
68e4e036 636 struct ieee80211_info_element info_element[0];
b453872c
JG		 637} __attribute__ ((packed));
638
ee34af37 639struct ieee80211_assoc_response {
b453872c 640 struct ieee80211_hdr_3addr header;
099c5bb1
JB		 641 __le16 capability;
642 __le16 status;
643 __le16 aid;
68e4e036 644 struct ieee80211_info_element info_element[0]; /* supported rates */
b453872c
JG		 645} __attribute__ ((packed));
646
b453872c
JG		 647struct ieee80211_txb {
648 u8 nr_frags;
649 u8 encrypted;
ee34af37
JK		 650 u8 rts_included;
651 u8 reserved;
cdcfc210
JK		 652 __le16 frag_size;
653 __le16 payload_size;
b453872c
JG		 654 struct sk_buff *fragments[0];
655};
656
099c5bb1 657/* SWEEP TABLE ENTRIES NUMBER */
b453872c
JG		 658#define MAX_SWEEP_TAB_ENTRIES 42
659#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
660/* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
661 * only use 8, and then use extended rates for the remaining supported
662 * rates. Other APs, however, stick all of their supported rates on the
663 * main rates information element... */
664#define MAX_RATES_LENGTH ((u8)12)
665#define MAX_RATES_EX_LENGTH ((u8)16)
666#define MAX_NETWORK_COUNT 128
667
668#define CRC_LENGTH 4U
669
670#define MAX_WPA_IE_LEN 64
671
9e8571af
JK		 672#define NETWORK_EMPTY_ESSID (1<<0)
673#define NETWORK_HAS_OFDM (1<<1)
674#define NETWORK_HAS_CCK (1<<2)
675
676/* QoS structure */
677#define NETWORK_HAS_QOS_PARAMETERS (1<<3)
678#define NETWORK_HAS_QOS_INFORMATION (1<<4)
679#define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | NETWORK_HAS_QOS_INFORMATION)
680
681#define QOS_QUEUE_NUM 4
682#define QOS_OUI_LEN 3
683#define QOS_OUI_TYPE 2
684#define QOS_ELEMENT_ID 221
685#define QOS_OUI_INFO_SUB_TYPE 0
686#define QOS_OUI_PARAM_SUB_TYPE 1
687#define QOS_VERSION_1 1
688#define QOS_AIFSN_MIN_VALUE 2
689
690struct ieee80211_qos_information_element {
691 u8 elementID;
692 u8 length;
693 u8 qui[QOS_OUI_LEN];
694 u8 qui_type;
695 u8 qui_subtype;
696 u8 version;
697 u8 ac_info;
698} __attribute__ ((packed));
699
700struct ieee80211_qos_ac_parameter {
701 u8 aci_aifsn;
702 u8 ecw_min_max;
cdcfc210 703 __le16 tx_op_limit;
9e8571af
JK		 704} __attribute__ ((packed));
705
706struct ieee80211_qos_parameter_info {
707 struct ieee80211_qos_information_element info_element;
708 u8 reserved;
709 struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
710} __attribute__ ((packed));
711
712struct ieee80211_qos_parameters {
cdcfc210
JK		 713 __le16 cw_min[QOS_QUEUE_NUM];
714 __le16 cw_max[QOS_QUEUE_NUM];
9e8571af
JK		 715 u8 aifs[QOS_QUEUE_NUM];
716 u8 flag[QOS_QUEUE_NUM];
cdcfc210 717 __le16 tx_op_limit[QOS_QUEUE_NUM];
9e8571af
JK		 718} __attribute__ ((packed));
719
720struct ieee80211_qos_data {
721 struct ieee80211_qos_parameters parameters;
722 int active;
723 int supported;
724 u8 param_count;
725 u8 old_param_count;
726};
727
728struct ieee80211_tim_parameters {
729 u8 tim_count;
730 u8 tim_period;
731} __attribute__ ((packed));
732
733/*******************************************************/
b453872c
JG		 734
735struct ieee80211_network {
736 /* These entries are used to identify a unique network */
737 u8 bssid[ETH_ALEN];
738 u8 channel;
739 /* Ensure null-terminated for any debug msgs */
740 u8 ssid[IW_ESSID_MAX_SIZE + 1];
741 u8 ssid_len;
742
9e8571af
JK		 743 struct ieee80211_qos_data qos_data;
744
b453872c
JG		 745 /* These are network statistics */
746 struct ieee80211_rx_stats stats;
747 u16 capability;
748 u8 rates[MAX_RATES_LENGTH];
749 u8 rates_len;
750 u8 rates_ex[MAX_RATES_EX_LENGTH];
751 u8 rates_ex_len;
752 unsigned long last_scanned;
753 u8 mode;
754 u8 flags;
755 u32 last_associate;
756 u32 time_stamp[2];
757 u16 beacon_interval;
758 u16 listen_interval;
759 u16 atim_window;
42c94e43 760 u8 erp_value;
b453872c
JG		 761 u8 wpa_ie[MAX_WPA_IE_LEN];
762 size_t wpa_ie_len;
763 u8 rsn_ie[MAX_WPA_IE_LEN];
764 size_t rsn_ie_len;
9e8571af 765 struct ieee80211_tim_parameters tim;
b453872c
JG		 766 struct list_head list;
767};
768
769enum ieee80211_state {
770 IEEE80211_UNINITIALIZED = 0,
771 IEEE80211_INITIALIZED,
772 IEEE80211_ASSOCIATING,
773 IEEE80211_ASSOCIATED,
774 IEEE80211_AUTHENTICATING,
775 IEEE80211_AUTHENTICATED,
776 IEEE80211_SHUTDOWN
777};
778
779#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
780#define DEFAULT_FTS 2346
b453872c 781
b453872c
JG		 782#define CFG_IEEE80211_RESERVE_FCS (1<<0)
783#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
3cdd00c5 784#define CFG_IEEE80211_RTS (1<<2)
b453872c 785
02cda6ae
JK		 786#define IEEE80211_24GHZ_MIN_CHANNEL 1
787#define IEEE80211_24GHZ_MAX_CHANNEL 14
788#define IEEE80211_24GHZ_CHANNELS 14
789
790#define IEEE80211_52GHZ_MIN_CHANNEL 36
791#define IEEE80211_52GHZ_MAX_CHANNEL 165
792#define IEEE80211_52GHZ_CHANNELS 32
793
794enum {
795 IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
796 IEEE80211_CH_B_ONLY = (1 << 2),
797 IEEE80211_CH_NO_IBSS = (1 << 3),
798 IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
799 IEEE80211_CH_RADAR_DETECT = (1 << 5),
800 IEEE80211_CH_INVALID = (1 << 6),
801};
802
803struct ieee80211_channel {
804 u16 freq;
805 u8 channel;
806 u8 flags;
807 u8 max_power;
808};
809
810struct ieee80211_geo {
811 u8 name[4];
812 u8 bg_channels;
813 u8 a_channels;
814 struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
815 struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
816};
817
b453872c
JG		 818struct ieee80211_device {
819 struct net_device *dev;
f1bf6638 820 struct ieee80211_security sec;
b453872c
JG		 821
822 /* Bookkeeping structures */
823 struct net_device_stats stats;
824 struct ieee80211_stats ieee_stats;
825
02cda6ae
JK		 826 struct ieee80211_geo geo;
827
b453872c
JG		 828 /* Probe / Beacon management */
829 struct list_head network_free_list;
830 struct list_head network_list;
831 struct ieee80211_network *networks;
832 int scans;
833 int scan_age;
834
74079fdc
JK		 835 int iw_mode; /* operating mode (IW_MODE_*) */
836 struct iw_spy_data spy_data; /* iwspy support */
b453872c
JG		 837
838 spinlock_t lock;
839
74079fdc
JK		 840 int tx_headroom; /* Set to size of any additional room needed at front
841 * of allocated Tx SKBs */
b453872c
JG		 842 u32 config;
843
844 /* WEP and other encryption related settings at the device level */
74079fdc 845 int open_wep; /* Set to 1 to allow unencrypted frames */
b453872c 846
74079fdc 847 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
b453872c
JG		 848 * WEP key changes */
849
850 /* If the host performs {en,de}cryption, then set to 1 */
851 int host_encrypt;
1264fc04 852 int host_encrypt_msdu;
b453872c 853 int host_decrypt;
ccd0fda3
JK		 854 /* host performs multicast decryption */
855 int host_mc_decrypt;
856
1264fc04 857 int host_open_frag;
74079fdc 858 int ieee802_1x; /* is IEEE 802.1X used */
b453872c
JG		 859
860 /* WPA data */
861 int wpa_enabled;
862 int drop_unencrypted;
863 int tkip_countermeasures;
864 int privacy_invoked;
865 size_t wpa_ie_len;
866 u8 *wpa_ie;
867
868 struct list_head crypt_deinit_list;
869 struct ieee80211_crypt_data *crypt[WEP_KEYS];
74079fdc 870 int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
b453872c 871 struct timer_list crypt_deinit_timer;
0ad0c3c6 872 int crypt_quiesced;
b453872c 873
74079fdc
JK		 874 int bcrx_sta_key; /* use individual keys to override default keys even
875 * with RX of broad/multicast frames */
b453872c
JG		 876
877 /* Fragmentation structures */
878 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
879 unsigned int frag_next_idx;
74079fdc 880 u16 fts; /* Fragmentation Threshold */
3cdd00c5 881 u16 rts; /* RTS threshold */
b453872c
JG		 882
883 /* Association info */
884 u8 bssid[ETH_ALEN];
885
886 enum ieee80211_state state;
887
74079fdc
JK		 888 int mode; /* A, B, G */
889 int modulation; /* CCK, OFDM */
890 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
3bc5ed68 891 int abg_true; /* ABG flag */
b453872c 892
b1b508e1
JK		 893 int perfect_rssi;
894 int worst_rssi;
895
b453872c 896 /* Callback functions */
74079fdc
JK		 897 void (*set_security) (struct net_device * dev,
898 struct ieee80211_security * sec);
899 int (*hard_start_xmit) (struct ieee80211_txb * txb,
9e8571af 900 struct net_device * dev, int pri);
74079fdc 901 int (*reset_port) (struct net_device * dev);
3f552bbf
JK		 902 int (*is_queue_full) (struct net_device * dev, int pri);
903
9e8571af
JK		 904 int (*handle_management) (struct net_device * dev,
905 struct ieee80211_network * network, u16 type);
906
3f552bbf
JK		 907 /* Typical STA methods */
908 int (*handle_auth) (struct net_device * dev,
909 struct ieee80211_auth * auth);
910 int (*handle_disassoc) (struct net_device * dev,
911 struct ieee80211_disassoc * assoc);
912 int (*handle_beacon) (struct net_device * dev,
913 struct ieee80211_beacon * beacon,
914 struct ieee80211_network * network);
915 int (*handle_probe_response) (struct net_device * dev,
916 struct ieee80211_probe_response * resp,
917 struct ieee80211_network * network);
42c94e43
JK		 918 int (*handle_probe_request) (struct net_device * dev,
919 struct ieee80211_probe_request * req,
920 struct ieee80211_rx_stats * stats);
3f552bbf
JK		 921 int (*handle_assoc_response) (struct net_device * dev,
922 struct ieee80211_assoc_response * resp,
923 struct ieee80211_network * network);
924
925 /* Typical AP methods */
926 int (*handle_assoc_request) (struct net_device * dev);
927 int (*handle_reassoc_request) (struct net_device * dev,
928 struct ieee80211_reassoc_request * req);
b453872c
JG		 929
930 /* This must be the last item so that it points to the data
931 * allocated beyond this structure by alloc_ieee80211 */
932 u8 priv[0];
933};
934
935#define IEEE_A (1<<0)
936#define IEEE_B (1<<1)
937#define IEEE_G (1<<2)
938#define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
939
9ba7e0d1 940static inline void *ieee80211_priv(struct net_device *dev)
b453872c
JG		 941{
942 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
943}
944
9ba7e0d1 945static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
b453872c
JG		 946{
947 /* Single white space is for Linksys APs */
948 if (essid_len == 1 && essid[0] == ' ')
949 return 1;
950
951 /* Otherwise, if the entire essid is 0, we assume it is hidden */
952 while (essid_len) {
953 essid_len--;
954 if (essid[essid_len] != '\0')
955 return 0;
956 }
957
958 return 1;
959}
960
9ba7e0d1 961static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
74079fdc 962 int mode)
b453872c
JG		 963{
964 /*
965 * It is possible for both access points and our device to support
966 * combinations of modes, so as long as there is one valid combination
967 * of ap/device supported modes, then return success
968 *
969 */
970 if ((mode & IEEE_A) &&
971 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
972 (ieee->freq_band & IEEE80211_52GHZ_BAND))
973 return 1;
974
975 if ((mode & IEEE_G) &&
976 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
977 (ieee->freq_band & IEEE80211_24GHZ_BAND))
978 return 1;
979
980 if ((mode & IEEE_B) &&
981 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
982 (ieee->freq_band & IEEE80211_24GHZ_BAND))
983 return 1;
984
985 return 0;
986}
987
9ba7e0d1 988static inline int ieee80211_get_hdrlen(u16 fc)
b453872c 989{
286d9747 990 int hdrlen = IEEE80211_3ADDR_LEN;
9e8571af 991 u16 stype = WLAN_FC_GET_STYPE(fc);
b453872c
JG		 992
993 switch (WLAN_FC_GET_TYPE(fc)) {
994 case IEEE80211_FTYPE_DATA:
995 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
286d9747 996 hdrlen = IEEE80211_4ADDR_LEN;
9e8571af
JK		 997 if (stype & IEEE80211_STYPE_QOS_DATA)
998 hdrlen += 2;
b453872c
JG		 999 break;
1000 case IEEE80211_FTYPE_CTL:
1001 switch (WLAN_FC_GET_STYPE(fc)) {
1002 case IEEE80211_STYPE_CTS:
1003 case IEEE80211_STYPE_ACK:
286d9747 1004 hdrlen = IEEE80211_1ADDR_LEN;
b453872c
JG		 1005 break;
1006 default:
286d9747 1007 hdrlen = IEEE80211_2ADDR_LEN;
b453872c
JG		 1008 break;
1009 }
1010 break;
1011 }
1012
1013 return hdrlen;
1014}
1015
9ba7e0d1 1016static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
ee34af37
JK		 1017{
1018 switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
1019 case IEEE80211_1ADDR_LEN:
1020 return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1021 case IEEE80211_2ADDR_LEN:
1022 return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1023 case IEEE80211_3ADDR_LEN:
1024 return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1025 case IEEE80211_4ADDR_LEN:
1026 return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1027 }
1028
1029}
1030
b453872c
JG		 1031/* ieee80211.c */
1032extern void free_ieee80211(struct net_device *dev);
1033extern struct net_device *alloc_ieee80211(int sizeof_priv);
1034
1035extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1036
1037/* ieee80211_tx.c */
74079fdc 1038extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
b453872c 1039extern void ieee80211_txb_free(struct ieee80211_txb *);
3f552bbf
JK		 1040extern int ieee80211_tx_frame(struct ieee80211_device *ieee,
1041 struct ieee80211_hdr *frame, int len);
b453872c 1042
b453872c
JG		 1043/* ieee80211_rx.c */
1044extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1045 struct ieee80211_rx_stats *rx_stats);
1046extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
ee34af37 1047 struct ieee80211_hdr_4addr *header,
b453872c
JG		 1048 struct ieee80211_rx_stats *stats);
1049
02cda6ae
JK		 1050/* ieee80211_geo.c */
1051extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1052 *ieee);
1053extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1054 const struct ieee80211_geo *geo);
1055
1056extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1057 u8 channel);
1058extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1059 u8 channel);
1060extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1061
099c5bb1 1062/* ieee80211_wx.c */
b453872c
JG		 1063extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1064 struct iw_request_info *info,
1065 union iwreq_data *wrqu, char *key);
1066extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1067 struct iw_request_info *info,
1068 union iwreq_data *wrqu, char *key);
1069extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1070 struct iw_request_info *info,
1071 union iwreq_data *wrqu, char *key);
e0d369d1
JK		 1072extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1073 struct iw_request_info *info,
1074 union iwreq_data *wrqu, char *extra);
1075extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1076 struct iw_request_info *info,
1077 union iwreq_data *wrqu, char *extra);
b453872c 1078
9ba7e0d1 1079static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
b453872c
JG		 1080{
1081 ieee->scans++;
1082}
1083
9ba7e0d1 1084static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
b453872c
JG		 1085{
1086 return ieee->scans;
1087}
1088
74079fdc 1089#endif /* IEEE80211_H */
Linux kernel - Deliverables
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