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[deliverable/linux.git] / include / net / ieee80211.h
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>
14 * Copyright (c) 2004-2005, Intel Corporation
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 * API Version History
22 * 1.0.x -- Initial version
23 * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
24 * various structure changes, and crypto API init method
25 */
26 #ifndef IEEE80211_H
27 #define IEEE80211_H
28 #include <linux/if_ether.h> /* ETH_ALEN */
29 #include <linux/kernel.h> /* ARRAY_SIZE */
30 #include <linux/wireless.h>
31
32 #define IEEE80211_VERSION "git-1.1.5"
33
34 #define IEEE80211_DATA_LEN 2304
35 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
36 6.2.1.1.2.
37
38 The figure in section 7.1.2 suggests a body size of up to 2312
39 bytes is allowed, which is a bit confusing, I suspect this
40 represents the 2304 bytes of real data, plus a possible 8 bytes of
41 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
42
43 #define IEEE80211_1ADDR_LEN 10
44 #define IEEE80211_2ADDR_LEN 16
45 #define IEEE80211_3ADDR_LEN 24
46 #define IEEE80211_4ADDR_LEN 30
47 #define IEEE80211_FCS_LEN 4
48 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
49 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
50
51 #define MIN_FRAG_THRESHOLD 256U
52 #define MAX_FRAG_THRESHOLD 2346U
53
54 /* Frame control field constants */
55 #define IEEE80211_FCTL_VERS 0x0003
56 #define IEEE80211_FCTL_FTYPE 0x000c
57 #define IEEE80211_FCTL_STYPE 0x00f0
58 #define IEEE80211_FCTL_TODS 0x0100
59 #define IEEE80211_FCTL_FROMDS 0x0200
60 #define IEEE80211_FCTL_MOREFRAGS 0x0400
61 #define IEEE80211_FCTL_RETRY 0x0800
62 #define IEEE80211_FCTL_PM 0x1000
63 #define IEEE80211_FCTL_MOREDATA 0x2000
64 #define IEEE80211_FCTL_PROTECTED 0x4000
65 #define IEEE80211_FCTL_ORDER 0x8000
66
67 #define IEEE80211_FTYPE_MGMT 0x0000
68 #define IEEE80211_FTYPE_CTL 0x0004
69 #define IEEE80211_FTYPE_DATA 0x0008
70
71 /* management */
72 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
73 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
74 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
75 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
76 #define IEEE80211_STYPE_PROBE_REQ 0x0040
77 #define IEEE80211_STYPE_PROBE_RESP 0x0050
78 #define IEEE80211_STYPE_BEACON 0x0080
79 #define IEEE80211_STYPE_ATIM 0x0090
80 #define IEEE80211_STYPE_DISASSOC 0x00A0
81 #define IEEE80211_STYPE_AUTH 0x00B0
82 #define IEEE80211_STYPE_DEAUTH 0x00C0
83 #define IEEE80211_STYPE_ACTION 0x00D0
84
85 /* control */
86 #define IEEE80211_STYPE_PSPOLL 0x00A0
87 #define IEEE80211_STYPE_RTS 0x00B0
88 #define IEEE80211_STYPE_CTS 0x00C0
89 #define IEEE80211_STYPE_ACK 0x00D0
90 #define IEEE80211_STYPE_CFEND 0x00E0
91 #define IEEE80211_STYPE_CFENDACK 0x00F0
92
93 /* data */
94 #define IEEE80211_STYPE_DATA 0x0000
95 #define IEEE80211_STYPE_DATA_CFACK 0x0010
96 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
97 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
98 #define IEEE80211_STYPE_NULLFUNC 0x0040
99 #define IEEE80211_STYPE_CFACK 0x0050
100 #define IEEE80211_STYPE_CFPOLL 0x0060
101 #define IEEE80211_STYPE_CFACKPOLL 0x0070
102 #define IEEE80211_STYPE_QOS_DATA 0x0080
103
104 #define IEEE80211_SCTL_FRAG 0x000F
105 #define IEEE80211_SCTL_SEQ 0xFFF0
106
107 /* debug macros */
108
109 #ifdef CONFIG_IEEE80211_DEBUG
110 extern u32 ieee80211_debug_level;
111 #define IEEE80211_DEBUG(level, fmt, args...) \
112 do { if (ieee80211_debug_level & (level)) \
113 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
114 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
115 #else
116 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
117 #endif /* CONFIG_IEEE80211_DEBUG */
118
119 /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
120
121 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
122 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
123
124 /* escape_essid() is intended to be used in debug (and possibly error)
125 * messages. It should never be used for passing essid to user space. */
126 const char *escape_essid(const char *essid, u8 essid_len);
127
128 /*
129 * To use the debug system:
130 *
131 * If you are defining a new debug classification, simply add it to the #define
132 * list here in the form of:
133 *
134 * #define IEEE80211_DL_xxxx VALUE
135 *
136 * shifting value to the left one bit from the previous entry. xxxx should be
137 * the name of the classification (for example, WEP)
138 *
139 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
140 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
141 * to send output to that classification.
142 *
143 * To add your debug level to the list of levels seen when you perform
144 *
145 * % cat /proc/net/ieee80211/debug_level
146 *
147 * you simply need to add your entry to the ieee80211_debug_level array.
148 *
149 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
150 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
151 *
152 */
153
154 #define IEEE80211_DL_INFO (1<<0)
155 #define IEEE80211_DL_WX (1<<1)
156 #define IEEE80211_DL_SCAN (1<<2)
157 #define IEEE80211_DL_STATE (1<<3)
158 #define IEEE80211_DL_MGMT (1<<4)
159 #define IEEE80211_DL_FRAG (1<<5)
160 #define IEEE80211_DL_DROP (1<<7)
161
162 #define IEEE80211_DL_TX (1<<8)
163 #define IEEE80211_DL_RX (1<<9)
164 #define IEEE80211_DL_QOS (1<<31)
165
166 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
167 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
168 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
169
170 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
171 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
172 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
173 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
174 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
175 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
176 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
177 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
178 #define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
179 #include <linux/netdevice.h>
180 #include <linux/wireless.h>
181 #include <linux/if_arp.h> /* ARPHRD_ETHER */
182
183 #ifndef WIRELESS_SPY
184 #define WIRELESS_SPY /* enable iwspy support */
185 #endif
186 #include <net/iw_handler.h> /* new driver API */
187
188 #ifndef ETH_P_PAE
189 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
190 #endif /* ETH_P_PAE */
191
192 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
193
194 #ifndef ETH_P_80211_RAW
195 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
196 #endif
197
198 /* IEEE 802.11 defines */
199
200 #define P80211_OUI_LEN 3
201
202 struct ieee80211_snap_hdr {
203
204 u8 dsap; /* always 0xAA */
205 u8 ssap; /* always 0xAA */
206 u8 ctrl; /* always 0x03 */
207 u8 oui[P80211_OUI_LEN]; /* organizational universal id */
208
209 } __attribute__ ((packed));
210
211 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
212
213 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
214 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
215 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
216
217 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
218 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
219
220 /* Authentication algorithms */
221 #define WLAN_AUTH_OPEN 0
222 #define WLAN_AUTH_SHARED_KEY 1
223
224 #define WLAN_AUTH_CHALLENGE_LEN 128
225
226 #define WLAN_CAPABILITY_ESS (1<<0)
227 #define WLAN_CAPABILITY_IBSS (1<<1)
228 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
229 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
230 #define WLAN_CAPABILITY_PRIVACY (1<<4)
231 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
232 #define WLAN_CAPABILITY_PBCC (1<<6)
233 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
234 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
235 #define WLAN_CAPABILITY_QOS (1<<9)
236 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
237 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
238
239 /* Status codes */
240 enum ieee80211_statuscode {
241 WLAN_STATUS_SUCCESS = 0,
242 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
243 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
244 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
245 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
246 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
247 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
248 WLAN_STATUS_CHALLENGE_FAIL = 15,
249 WLAN_STATUS_AUTH_TIMEOUT = 16,
250 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
251 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
252 /* 802.11b */
253 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
254 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
255 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
256 /* 802.11h */
257 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
258 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
259 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
260 /* 802.11g */
261 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
262 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
263 /* 802.11i */
264 WLAN_STATUS_INVALID_IE = 40,
265 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
266 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
267 WLAN_STATUS_INVALID_AKMP = 43,
268 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
269 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
270 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
271 };
272
273 /* Reason codes */
274 enum ieee80211_reasoncode {
275 WLAN_REASON_UNSPECIFIED = 1,
276 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
277 WLAN_REASON_DEAUTH_LEAVING = 3,
278 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
279 WLAN_REASON_DISASSOC_AP_BUSY = 5,
280 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
281 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
282 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
283 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
284 /* 802.11h */
285 WLAN_REASON_DISASSOC_BAD_POWER = 10,
286 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
287 /* 802.11i */
288 WLAN_REASON_INVALID_IE = 13,
289 WLAN_REASON_MIC_FAILURE = 14,
290 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
291 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
292 WLAN_REASON_IE_DIFFERENT = 17,
293 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
294 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
295 WLAN_REASON_INVALID_AKMP = 20,
296 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
297 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
298 WLAN_REASON_IEEE8021X_FAILED = 23,
299 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
300 };
301
302 #define IEEE80211_STATMASK_SIGNAL (1<<0)
303 #define IEEE80211_STATMASK_RSSI (1<<1)
304 #define IEEE80211_STATMASK_NOISE (1<<2)
305 #define IEEE80211_STATMASK_RATE (1<<3)
306 #define IEEE80211_STATMASK_WEMASK 0x7
307
308 #define IEEE80211_CCK_MODULATION (1<<0)
309 #define IEEE80211_OFDM_MODULATION (1<<1)
310
311 #define IEEE80211_24GHZ_BAND (1<<0)
312 #define IEEE80211_52GHZ_BAND (1<<1)
313
314 #define IEEE80211_CCK_RATE_1MB 0x02
315 #define IEEE80211_CCK_RATE_2MB 0x04
316 #define IEEE80211_CCK_RATE_5MB 0x0B
317 #define IEEE80211_CCK_RATE_11MB 0x16
318 #define IEEE80211_OFDM_RATE_6MB 0x0C
319 #define IEEE80211_OFDM_RATE_9MB 0x12
320 #define IEEE80211_OFDM_RATE_12MB 0x18
321 #define IEEE80211_OFDM_RATE_18MB 0x24
322 #define IEEE80211_OFDM_RATE_24MB 0x30
323 #define IEEE80211_OFDM_RATE_36MB 0x48
324 #define IEEE80211_OFDM_RATE_48MB 0x60
325 #define IEEE80211_OFDM_RATE_54MB 0x6C
326 #define IEEE80211_BASIC_RATE_MASK 0x80
327
328 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
329 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
330 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
331 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
332 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
333 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
334 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
335 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
336 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
337 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
338 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
339 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
340
341 #define IEEE80211_CCK_RATES_MASK 0x0000000F
342 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
343 IEEE80211_CCK_RATE_2MB_MASK)
344 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
345 IEEE80211_CCK_RATE_5MB_MASK | \
346 IEEE80211_CCK_RATE_11MB_MASK)
347
348 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
349 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
350 IEEE80211_OFDM_RATE_12MB_MASK | \
351 IEEE80211_OFDM_RATE_24MB_MASK)
352 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
353 IEEE80211_OFDM_RATE_9MB_MASK | \
354 IEEE80211_OFDM_RATE_18MB_MASK | \
355 IEEE80211_OFDM_RATE_36MB_MASK | \
356 IEEE80211_OFDM_RATE_48MB_MASK | \
357 IEEE80211_OFDM_RATE_54MB_MASK)
358 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
359 IEEE80211_CCK_DEFAULT_RATES_MASK)
360
361 #define IEEE80211_NUM_OFDM_RATES 8
362 #define IEEE80211_NUM_CCK_RATES 4
363 #define IEEE80211_OFDM_SHIFT_MASK_A 4
364
365 /* NOTE: This data is for statistical purposes; not all hardware provides this
366 * information for frames received. Not setting these will not cause
367 * any adverse affects. */
368 struct ieee80211_rx_stats {
369 u32 mac_time;
370 s8 rssi;
371 u8 signal;
372 u8 noise;
373 u16 rate; /* in 100 kbps */
374 u8 received_channel;
375 u8 control;
376 u8 mask;
377 u8 freq;
378 u16 len;
379 };
380
381 /* IEEE 802.11 requires that STA supports concurrent reception of at least
382 * three fragmented frames. This define can be increased to support more
383 * concurrent frames, but it should be noted that each entry can consume about
384 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
385 #define IEEE80211_FRAG_CACHE_LEN 4
386
387 struct ieee80211_frag_entry {
388 unsigned long first_frag_time;
389 unsigned int seq;
390 unsigned int last_frag;
391 struct sk_buff *skb;
392 u8 src_addr[ETH_ALEN];
393 u8 dst_addr[ETH_ALEN];
394 };
395
396 struct ieee80211_stats {
397 unsigned int tx_unicast_frames;
398 unsigned int tx_multicast_frames;
399 unsigned int tx_fragments;
400 unsigned int tx_unicast_octets;
401 unsigned int tx_multicast_octets;
402 unsigned int tx_deferred_transmissions;
403 unsigned int tx_single_retry_frames;
404 unsigned int tx_multiple_retry_frames;
405 unsigned int tx_retry_limit_exceeded;
406 unsigned int tx_discards;
407 unsigned int rx_unicast_frames;
408 unsigned int rx_multicast_frames;
409 unsigned int rx_fragments;
410 unsigned int rx_unicast_octets;
411 unsigned int rx_multicast_octets;
412 unsigned int rx_fcs_errors;
413 unsigned int rx_discards_no_buffer;
414 unsigned int tx_discards_wrong_sa;
415 unsigned int rx_discards_undecryptable;
416 unsigned int rx_message_in_msg_fragments;
417 unsigned int rx_message_in_bad_msg_fragments;
418 };
419
420 struct ieee80211_device;
421
422 #include "ieee80211_crypt.h"
423
424 #define SEC_KEY_1 (1<<0)
425 #define SEC_KEY_2 (1<<1)
426 #define SEC_KEY_3 (1<<2)
427 #define SEC_KEY_4 (1<<3)
428 #define SEC_ACTIVE_KEY (1<<4)
429 #define SEC_AUTH_MODE (1<<5)
430 #define SEC_UNICAST_GROUP (1<<6)
431 #define SEC_LEVEL (1<<7)
432 #define SEC_ENABLED (1<<8)
433 #define SEC_ENCRYPT (1<<9)
434
435 #define SEC_LEVEL_0 0 /* None */
436 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
437 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
438 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
439 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
440
441 #define SEC_ALG_NONE 0
442 #define SEC_ALG_WEP 1
443 #define SEC_ALG_TKIP 2
444 #define SEC_ALG_CCMP 3
445
446 #define WEP_KEYS 4
447 #define WEP_KEY_LEN 13
448 #define SCM_KEY_LEN 32
449 #define SCM_TEMPORAL_KEY_LENGTH 16
450
451 struct ieee80211_security {
452 u16 active_key:2,
453 enabled:1,
454 auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
455 u8 encode_alg[WEP_KEYS];
456 u8 key_sizes[WEP_KEYS];
457 u8 keys[WEP_KEYS][SCM_KEY_LEN];
458 u8 level;
459 u16 flags;
460 } __attribute__ ((packed));
461
462 /*
463
464 802.11 data frame from AP
465
466 ,-------------------------------------------------------------------.
467 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
468 |------|------|---------|---------|---------|------|---------|------|
469 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
470 | | tion | (BSSID) | | | ence | data | |
471 `-------------------------------------------------------------------'
472
473 Total: 28-2340 bytes
474
475 */
476
477 #define BEACON_PROBE_SSID_ID_POSITION 12
478
479 /* Management Frame Information Element Types */
480 enum ieee80211_mfie {
481 MFIE_TYPE_SSID = 0,
482 MFIE_TYPE_RATES = 1,
483 MFIE_TYPE_FH_SET = 2,
484 MFIE_TYPE_DS_SET = 3,
485 MFIE_TYPE_CF_SET = 4,
486 MFIE_TYPE_TIM = 5,
487 MFIE_TYPE_IBSS_SET = 6,
488 MFIE_TYPE_COUNTRY = 7,
489 MFIE_TYPE_HOP_PARAMS = 8,
490 MFIE_TYPE_HOP_TABLE = 9,
491 MFIE_TYPE_REQUEST = 10,
492 MFIE_TYPE_CHALLENGE = 16,
493 MFIE_TYPE_POWER_CONSTRAINT = 32,
494 MFIE_TYPE_POWER_CAPABILITY = 33,
495 MFIE_TYPE_TPC_REQUEST = 34,
496 MFIE_TYPE_TPC_REPORT = 35,
497 MFIE_TYPE_SUPP_CHANNELS = 36,
498 MFIE_TYPE_CSA = 37,
499 MFIE_TYPE_MEASURE_REQUEST = 38,
500 MFIE_TYPE_MEASURE_REPORT = 39,
501 MFIE_TYPE_QUIET = 40,
502 MFIE_TYPE_IBSS_DFS = 41,
503 MFIE_TYPE_ERP_INFO = 42,
504 MFIE_TYPE_RSN = 48,
505 MFIE_TYPE_RATES_EX = 50,
506 MFIE_TYPE_GENERIC = 221,
507 MFIE_TYPE_QOS_PARAMETER = 222,
508 };
509
510 /* Minimal header; can be used for passing 802.11 frames with sufficient
511 * information to determine what type of underlying data type is actually
512 * stored in the data. */
513 struct ieee80211_hdr {
514 __le16 frame_ctl;
515 __le16 duration_id;
516 u8 payload[0];
517 } __attribute__ ((packed));
518
519 struct ieee80211_hdr_1addr {
520 __le16 frame_ctl;
521 __le16 duration_id;
522 u8 addr1[ETH_ALEN];
523 u8 payload[0];
524 } __attribute__ ((packed));
525
526 struct ieee80211_hdr_2addr {
527 __le16 frame_ctl;
528 __le16 duration_id;
529 u8 addr1[ETH_ALEN];
530 u8 addr2[ETH_ALEN];
531 u8 payload[0];
532 } __attribute__ ((packed));
533
534 struct ieee80211_hdr_3addr {
535 __le16 frame_ctl;
536 __le16 duration_id;
537 u8 addr1[ETH_ALEN];
538 u8 addr2[ETH_ALEN];
539 u8 addr3[ETH_ALEN];
540 __le16 seq_ctl;
541 u8 payload[0];
542 } __attribute__ ((packed));
543
544 struct ieee80211_hdr_4addr {
545 __le16 frame_ctl;
546 __le16 duration_id;
547 u8 addr1[ETH_ALEN];
548 u8 addr2[ETH_ALEN];
549 u8 addr3[ETH_ALEN];
550 __le16 seq_ctl;
551 u8 addr4[ETH_ALEN];
552 u8 payload[0];
553 } __attribute__ ((packed));
554
555 struct ieee80211_hdr_3addrqos {
556 __le16 frame_ctl;
557 __le16 duration_id;
558 u8 addr1[ETH_ALEN];
559 u8 addr2[ETH_ALEN];
560 u8 addr3[ETH_ALEN];
561 __le16 seq_ctl;
562 u8 payload[0];
563 __le16 qos_ctl;
564 } __attribute__ ((packed));
565
566 struct ieee80211_hdr_4addrqos {
567 __le16 frame_ctl;
568 __le16 duration_id;
569 u8 addr1[ETH_ALEN];
570 u8 addr2[ETH_ALEN];
571 u8 addr3[ETH_ALEN];
572 __le16 seq_ctl;
573 u8 addr4[ETH_ALEN];
574 u8 payload[0];
575 __le16 qos_ctl;
576 } __attribute__ ((packed));
577
578 struct ieee80211_info_element {
579 u8 id;
580 u8 len;
581 u8 data[0];
582 } __attribute__ ((packed));
583
584 /*
585 * These are the data types that can make up management packets
586 *
587 u16 auth_algorithm;
588 u16 auth_sequence;
589 u16 beacon_interval;
590 u16 capability;
591 u8 current_ap[ETH_ALEN];
592 u16 listen_interval;
593 struct {
594 u16 association_id:14, reserved:2;
595 } __attribute__ ((packed));
596 u32 time_stamp[2];
597 u16 reason;
598 u16 status;
599 */
600
601 struct ieee80211_auth {
602 struct ieee80211_hdr_3addr header;
603 __le16 algorithm;
604 __le16 transaction;
605 __le16 status;
606 /* challenge */
607 struct ieee80211_info_element info_element[0];
608 } __attribute__ ((packed));
609
610 struct ieee80211_disassoc {
611 struct ieee80211_hdr_3addr header;
612 __le16 reason;
613 } __attribute__ ((packed));
614
615 /* Alias deauth for disassoc */
616 #define ieee80211_deauth ieee80211_disassoc
617
618 struct ieee80211_probe_request {
619 struct ieee80211_hdr_3addr header;
620 /* SSID, supported rates */
621 struct ieee80211_info_element info_element[0];
622 } __attribute__ ((packed));
623
624 struct ieee80211_probe_response {
625 struct ieee80211_hdr_3addr header;
626 u32 time_stamp[2];
627 __le16 beacon_interval;
628 __le16 capability;
629 /* SSID, supported rates, FH params, DS params,
630 * CF params, IBSS params, TIM (if beacon), RSN */
631 struct ieee80211_info_element info_element[0];
632 } __attribute__ ((packed));
633
634 /* Alias beacon for probe_response */
635 #define ieee80211_beacon ieee80211_probe_response
636
637 struct ieee80211_assoc_request {
638 struct ieee80211_hdr_3addr header;
639 __le16 capability;
640 __le16 listen_interval;
641 /* SSID, supported rates, RSN */
642 struct ieee80211_info_element info_element[0];
643 } __attribute__ ((packed));
644
645 struct ieee80211_reassoc_request {
646 struct ieee80211_hdr_3addr header;
647 __le16 capability;
648 __le16 listen_interval;
649 u8 current_ap[ETH_ALEN];
650 struct ieee80211_info_element info_element[0];
651 } __attribute__ ((packed));
652
653 struct ieee80211_assoc_response {
654 struct ieee80211_hdr_3addr header;
655 __le16 capability;
656 __le16 status;
657 __le16 aid;
658 /* supported rates */
659 struct ieee80211_info_element info_element[0];
660 } __attribute__ ((packed));
661
662 struct ieee80211_txb {
663 u8 nr_frags;
664 u8 encrypted;
665 u8 rts_included;
666 u8 reserved;
667 __le16 frag_size;
668 __le16 payload_size;
669 struct sk_buff *fragments[0];
670 };
671
672 /* SWEEP TABLE ENTRIES NUMBER */
673 #define MAX_SWEEP_TAB_ENTRIES 42
674 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
675 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
676 * only use 8, and then use extended rates for the remaining supported
677 * rates. Other APs, however, stick all of their supported rates on the
678 * main rates information element... */
679 #define MAX_RATES_LENGTH ((u8)12)
680 #define MAX_RATES_EX_LENGTH ((u8)16)
681 #define MAX_NETWORK_COUNT 128
682
683 #define CRC_LENGTH 4U
684
685 #define MAX_WPA_IE_LEN 64
686
687 #define NETWORK_EMPTY_ESSID (1<<0)
688 #define NETWORK_HAS_OFDM (1<<1)
689 #define NETWORK_HAS_CCK (1<<2)
690
691 /* QoS structure */
692 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
693 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
694 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | NETWORK_HAS_QOS_INFORMATION)
695
696 #define QOS_QUEUE_NUM 4
697 #define QOS_OUI_LEN 3
698 #define QOS_OUI_TYPE 2
699 #define QOS_ELEMENT_ID 221
700 #define QOS_OUI_INFO_SUB_TYPE 0
701 #define QOS_OUI_PARAM_SUB_TYPE 1
702 #define QOS_VERSION_1 1
703 #define QOS_AIFSN_MIN_VALUE 2
704
705 struct ieee80211_qos_information_element {
706 u8 elementID;
707 u8 length;
708 u8 qui[QOS_OUI_LEN];
709 u8 qui_type;
710 u8 qui_subtype;
711 u8 version;
712 u8 ac_info;
713 } __attribute__ ((packed));
714
715 struct ieee80211_qos_ac_parameter {
716 u8 aci_aifsn;
717 u8 ecw_min_max;
718 __le16 tx_op_limit;
719 } __attribute__ ((packed));
720
721 struct ieee80211_qos_parameter_info {
722 struct ieee80211_qos_information_element info_element;
723 u8 reserved;
724 struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
725 } __attribute__ ((packed));
726
727 struct ieee80211_qos_parameters {
728 __le16 cw_min[QOS_QUEUE_NUM];
729 __le16 cw_max[QOS_QUEUE_NUM];
730 u8 aifs[QOS_QUEUE_NUM];
731 u8 flag[QOS_QUEUE_NUM];
732 __le16 tx_op_limit[QOS_QUEUE_NUM];
733 } __attribute__ ((packed));
734
735 struct ieee80211_qos_data {
736 struct ieee80211_qos_parameters parameters;
737 int active;
738 int supported;
739 u8 param_count;
740 u8 old_param_count;
741 };
742
743 struct ieee80211_tim_parameters {
744 u8 tim_count;
745 u8 tim_period;
746 } __attribute__ ((packed));
747
748 /*******************************************************/
749
750 struct ieee80211_network {
751 /* These entries are used to identify a unique network */
752 u8 bssid[ETH_ALEN];
753 u8 channel;
754 /* Ensure null-terminated for any debug msgs */
755 u8 ssid[IW_ESSID_MAX_SIZE + 1];
756 u8 ssid_len;
757
758 struct ieee80211_qos_data qos_data;
759
760 /* These are network statistics */
761 struct ieee80211_rx_stats stats;
762 u16 capability;
763 u8 rates[MAX_RATES_LENGTH];
764 u8 rates_len;
765 u8 rates_ex[MAX_RATES_EX_LENGTH];
766 u8 rates_ex_len;
767 unsigned long last_scanned;
768 u8 mode;
769 u8 flags;
770 u32 last_associate;
771 u32 time_stamp[2];
772 u16 beacon_interval;
773 u16 listen_interval;
774 u16 atim_window;
775 u8 erp_value;
776 u8 wpa_ie[MAX_WPA_IE_LEN];
777 size_t wpa_ie_len;
778 u8 rsn_ie[MAX_WPA_IE_LEN];
779 size_t rsn_ie_len;
780 struct ieee80211_tim_parameters tim;
781 struct list_head list;
782 };
783
784 enum ieee80211_state {
785 IEEE80211_UNINITIALIZED = 0,
786 IEEE80211_INITIALIZED,
787 IEEE80211_ASSOCIATING,
788 IEEE80211_ASSOCIATED,
789 IEEE80211_AUTHENTICATING,
790 IEEE80211_AUTHENTICATED,
791 IEEE80211_SHUTDOWN
792 };
793
794 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
795 #define DEFAULT_FTS 2346
796
797 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
798 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
799 #define CFG_IEEE80211_RTS (1<<2)
800
801 #define IEEE80211_24GHZ_MIN_CHANNEL 1
802 #define IEEE80211_24GHZ_MAX_CHANNEL 14
803 #define IEEE80211_24GHZ_CHANNELS 14
804
805 #define IEEE80211_52GHZ_MIN_CHANNEL 36
806 #define IEEE80211_52GHZ_MAX_CHANNEL 165
807 #define IEEE80211_52GHZ_CHANNELS 32
808
809 enum {
810 IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
811 IEEE80211_CH_B_ONLY = (1 << 2),
812 IEEE80211_CH_NO_IBSS = (1 << 3),
813 IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
814 IEEE80211_CH_RADAR_DETECT = (1 << 5),
815 IEEE80211_CH_INVALID = (1 << 6),
816 };
817
818 struct ieee80211_channel {
819 u32 freq;
820 u8 channel;
821 u8 flags;
822 u8 max_power;
823 };
824
825 struct ieee80211_geo {
826 u8 name[4];
827 u8 bg_channels;
828 u8 a_channels;
829 struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
830 struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
831 };
832
833 struct ieee80211_device {
834 struct net_device *dev;
835 struct ieee80211_security sec;
836
837 /* Bookkeeping structures */
838 struct net_device_stats stats;
839 struct ieee80211_stats ieee_stats;
840
841 struct ieee80211_geo geo;
842
843 /* Probe / Beacon management */
844 struct list_head network_free_list;
845 struct list_head network_list;
846 struct ieee80211_network *networks;
847 int scans;
848 int scan_age;
849
850 int iw_mode; /* operating mode (IW_MODE_*) */
851 struct iw_spy_data spy_data; /* iwspy support */
852
853 spinlock_t lock;
854
855 int tx_headroom; /* Set to size of any additional room needed at front
856 * of allocated Tx SKBs */
857 u32 config;
858
859 /* WEP and other encryption related settings at the device level */
860 int open_wep; /* Set to 1 to allow unencrypted frames */
861
862 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
863 * WEP key changes */
864
865 /* If the host performs {en,de}cryption, then set to 1 */
866 int host_encrypt;
867 int host_encrypt_msdu;
868 int host_decrypt;
869 /* host performs multicast decryption */
870 int host_mc_decrypt;
871
872 int host_open_frag;
873 int host_build_iv;
874 int ieee802_1x; /* is IEEE 802.1X used */
875
876 /* WPA data */
877 int wpa_enabled;
878 int drop_unencrypted;
879 int privacy_invoked;
880 size_t wpa_ie_len;
881 u8 *wpa_ie;
882
883 struct list_head crypt_deinit_list;
884 struct ieee80211_crypt_data *crypt[WEP_KEYS];
885 int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
886 struct timer_list crypt_deinit_timer;
887 int crypt_quiesced;
888
889 int bcrx_sta_key; /* use individual keys to override default keys even
890 * with RX of broad/multicast frames */
891
892 /* Fragmentation structures */
893 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
894 unsigned int frag_next_idx;
895 u16 fts; /* Fragmentation Threshold */
896 u16 rts; /* RTS threshold */
897
898 /* Association info */
899 u8 bssid[ETH_ALEN];
900
901 enum ieee80211_state state;
902
903 int mode; /* A, B, G */
904 int modulation; /* CCK, OFDM */
905 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
906 int abg_true; /* ABG flag */
907
908 int perfect_rssi;
909 int worst_rssi;
910
911 /* Callback functions */
912 void (*set_security) (struct net_device * dev,
913 struct ieee80211_security * sec);
914 int (*hard_start_xmit) (struct ieee80211_txb * txb,
915 struct net_device * dev, int pri);
916 int (*reset_port) (struct net_device * dev);
917 int (*is_queue_full) (struct net_device * dev, int pri);
918
919 int (*handle_management) (struct net_device * dev,
920 struct ieee80211_network * network, u16 type);
921
922 /* Typical STA methods */
923 int (*handle_auth) (struct net_device * dev,
924 struct ieee80211_auth * auth);
925 int (*handle_deauth) (struct net_device * dev,
926 struct ieee80211_auth * auth);
927 int (*handle_disassoc) (struct net_device * dev,
928 struct ieee80211_disassoc * assoc);
929 int (*handle_beacon) (struct net_device * dev,
930 struct ieee80211_beacon * beacon,
931 struct ieee80211_network * network);
932 int (*handle_probe_response) (struct net_device * dev,
933 struct ieee80211_probe_response * resp,
934 struct ieee80211_network * network);
935 int (*handle_probe_request) (struct net_device * dev,
936 struct ieee80211_probe_request * req,
937 struct ieee80211_rx_stats * stats);
938 int (*handle_assoc_response) (struct net_device * dev,
939 struct ieee80211_assoc_response * resp,
940 struct ieee80211_network * network);
941
942 /* Typical AP methods */
943 int (*handle_assoc_request) (struct net_device * dev);
944 int (*handle_reassoc_request) (struct net_device * dev,
945 struct ieee80211_reassoc_request * req);
946
947 /* This must be the last item so that it points to the data
948 * allocated beyond this structure by alloc_ieee80211 */
949 u8 priv[0];
950 };
951
952 #define IEEE_A (1<<0)
953 #define IEEE_B (1<<1)
954 #define IEEE_G (1<<2)
955 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
956
957 static inline void *ieee80211_priv(struct net_device *dev)
958 {
959 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
960 }
961
962 static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
963 {
964 /* Single white space is for Linksys APs */
965 if (essid_len == 1 && essid[0] == ' ')
966 return 1;
967
968 /* Otherwise, if the entire essid is 0, we assume it is hidden */
969 while (essid_len) {
970 essid_len--;
971 if (essid[essid_len] != '\0')
972 return 0;
973 }
974
975 return 1;
976 }
977
978 static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
979 int mode)
980 {
981 /*
982 * It is possible for both access points and our device to support
983 * combinations of modes, so as long as there is one valid combination
984 * of ap/device supported modes, then return success
985 *
986 */
987 if ((mode & IEEE_A) &&
988 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
989 (ieee->freq_band & IEEE80211_52GHZ_BAND))
990 return 1;
991
992 if ((mode & IEEE_G) &&
993 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
994 (ieee->freq_band & IEEE80211_24GHZ_BAND))
995 return 1;
996
997 if ((mode & IEEE_B) &&
998 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
999 (ieee->freq_band & IEEE80211_24GHZ_BAND))
1000 return 1;
1001
1002 return 0;
1003 }
1004
1005 static inline int ieee80211_get_hdrlen(u16 fc)
1006 {
1007 int hdrlen = IEEE80211_3ADDR_LEN;
1008 u16 stype = WLAN_FC_GET_STYPE(fc);
1009
1010 switch (WLAN_FC_GET_TYPE(fc)) {
1011 case IEEE80211_FTYPE_DATA:
1012 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
1013 hdrlen = IEEE80211_4ADDR_LEN;
1014 if (stype & IEEE80211_STYPE_QOS_DATA)
1015 hdrlen += 2;
1016 break;
1017 case IEEE80211_FTYPE_CTL:
1018 switch (WLAN_FC_GET_STYPE(fc)) {
1019 case IEEE80211_STYPE_CTS:
1020 case IEEE80211_STYPE_ACK:
1021 hdrlen = IEEE80211_1ADDR_LEN;
1022 break;
1023 default:
1024 hdrlen = IEEE80211_2ADDR_LEN;
1025 break;
1026 }
1027 break;
1028 }
1029
1030 return hdrlen;
1031 }
1032
1033 static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
1034 {
1035 switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
1036 case IEEE80211_1ADDR_LEN:
1037 return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1038 case IEEE80211_2ADDR_LEN:
1039 return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1040 case IEEE80211_3ADDR_LEN:
1041 return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1042 case IEEE80211_4ADDR_LEN:
1043 return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1044 }
1045
1046 }
1047
1048 static inline int ieee80211_is_ofdm_rate(u8 rate)
1049 {
1050 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1051 case IEEE80211_OFDM_RATE_6MB:
1052 case IEEE80211_OFDM_RATE_9MB:
1053 case IEEE80211_OFDM_RATE_12MB:
1054 case IEEE80211_OFDM_RATE_18MB:
1055 case IEEE80211_OFDM_RATE_24MB:
1056 case IEEE80211_OFDM_RATE_36MB:
1057 case IEEE80211_OFDM_RATE_48MB:
1058 case IEEE80211_OFDM_RATE_54MB:
1059 return 1;
1060 }
1061 return 0;
1062 }
1063
1064 static inline int ieee80211_is_cck_rate(u8 rate)
1065 {
1066 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1067 case IEEE80211_CCK_RATE_1MB:
1068 case IEEE80211_CCK_RATE_2MB:
1069 case IEEE80211_CCK_RATE_5MB:
1070 case IEEE80211_CCK_RATE_11MB:
1071 return 1;
1072 }
1073 return 0;
1074 }
1075
1076 /* ieee80211.c */
1077 extern void free_ieee80211(struct net_device *dev);
1078 extern struct net_device *alloc_ieee80211(int sizeof_priv);
1079
1080 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1081
1082 /* ieee80211_tx.c */
1083 extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
1084 extern void ieee80211_txb_free(struct ieee80211_txb *);
1085 extern int ieee80211_tx_frame(struct ieee80211_device *ieee,
1086 struct ieee80211_hdr *frame, int len);
1087
1088 /* ieee80211_rx.c */
1089 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1090 struct ieee80211_rx_stats *rx_stats);
1091 extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1092 struct ieee80211_hdr_4addr *header,
1093 struct ieee80211_rx_stats *stats);
1094
1095 /* ieee80211_geo.c */
1096 extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1097 *ieee);
1098 extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1099 const struct ieee80211_geo *geo);
1100
1101 extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1102 u8 channel);
1103 extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1104 u8 channel);
1105 extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1106
1107 /* ieee80211_wx.c */
1108 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1109 struct iw_request_info *info,
1110 union iwreq_data *wrqu, char *key);
1111 extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1112 struct iw_request_info *info,
1113 union iwreq_data *wrqu, char *key);
1114 extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1115 struct iw_request_info *info,
1116 union iwreq_data *wrqu, char *key);
1117 extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1118 struct iw_request_info *info,
1119 union iwreq_data *wrqu, char *extra);
1120 extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1121 struct iw_request_info *info,
1122 union iwreq_data *wrqu, char *extra);
1123
1124 static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
1125 {
1126 ieee->scans++;
1127 }
1128
1129 static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
1130 {
1131 return ieee->scans;
1132 }
1133
1134 #endif /* IEEE80211_H */
Linux kernel - Deliverables
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