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net: Make static
[linux-2.6.git] / include / net / ieee80211.h
blob7ab3ed2bbccbfd51a25a898289fb93ebadf12d24
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 * <j@w1.fi>
10 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.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 #include <linux/ieee80211.h>
32
33 #include <net/lib80211.h>
34
35 #define IEEE80211_VERSION "git-1.1.13"
36
37 #define IEEE80211_DATA_LEN 2304
38 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
39 6.2.1.1.2.
40
41 The figure in section 7.1.2 suggests a body size of up to 2312
42 bytes is allowed, which is a bit confusing, I suspect this
43 represents the 2304 bytes of real data, plus a possible 8 bytes of
44 WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
45
46 #define IEEE80211_1ADDR_LEN 10
47 #define IEEE80211_2ADDR_LEN 16
48 #define IEEE80211_3ADDR_LEN 24
49 #define IEEE80211_4ADDR_LEN 30
50 #define IEEE80211_FCS_LEN 4
51 #define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
52 #define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
53
54 #define MIN_FRAG_THRESHOLD 256U
55 #define MAX_FRAG_THRESHOLD 2346U
56
57 /* Frame control field constants */
58 #define IEEE80211_FCTL_VERS 0x0003
59 #define IEEE80211_FCTL_FTYPE 0x000c
60 #define IEEE80211_FCTL_STYPE 0x00f0
61 #define IEEE80211_FCTL_TODS 0x0100
62 #define IEEE80211_FCTL_FROMDS 0x0200
63 #define IEEE80211_FCTL_MOREFRAGS 0x0400
64 #define IEEE80211_FCTL_RETRY 0x0800
65 #define IEEE80211_FCTL_PM 0x1000
66 #define IEEE80211_FCTL_MOREDATA 0x2000
67 #define IEEE80211_FCTL_PROTECTED 0x4000
68 #define IEEE80211_FCTL_ORDER 0x8000
69
70 #define IEEE80211_FTYPE_MGMT 0x0000
71 #define IEEE80211_FTYPE_CTL 0x0004
72 #define IEEE80211_FTYPE_DATA 0x0008
73
74 /* management */
75 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
76 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
77 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
78 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
79 #define IEEE80211_STYPE_PROBE_REQ 0x0040
80 #define IEEE80211_STYPE_PROBE_RESP 0x0050
81 #define IEEE80211_STYPE_BEACON 0x0080
82 #define IEEE80211_STYPE_ATIM 0x0090
83 #define IEEE80211_STYPE_DISASSOC 0x00A0
84 #define IEEE80211_STYPE_AUTH 0x00B0
85 #define IEEE80211_STYPE_DEAUTH 0x00C0
86 #define IEEE80211_STYPE_ACTION 0x00D0
87
88 /* control */
89 #define IEEE80211_STYPE_PSPOLL 0x00A0
90 #define IEEE80211_STYPE_RTS 0x00B0
91 #define IEEE80211_STYPE_CTS 0x00C0
92 #define IEEE80211_STYPE_ACK 0x00D0
93 #define IEEE80211_STYPE_CFEND 0x00E0
94 #define IEEE80211_STYPE_CFENDACK 0x00F0
95
96 /* data */
97 #define IEEE80211_STYPE_DATA 0x0000
98 #define IEEE80211_STYPE_DATA_CFACK 0x0010
99 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
100 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
101 #define IEEE80211_STYPE_NULLFUNC 0x0040
102 #define IEEE80211_STYPE_CFACK 0x0050
103 #define IEEE80211_STYPE_CFPOLL 0x0060
104 #define IEEE80211_STYPE_CFACKPOLL 0x0070
105 #define IEEE80211_STYPE_QOS_DATA 0x0080
106
107 #define IEEE80211_SCTL_FRAG 0x000F
108 #define IEEE80211_SCTL_SEQ 0xFFF0
109
110 /* QOS control */
111 #define IEEE80211_QCTL_TID 0x000F
112
113 /* debug macros */
114
115 #ifdef CONFIG_IEEE80211_DEBUG
116 extern u32 ieee80211_debug_level;
117 #define IEEE80211_DEBUG(level, fmt, args...) \
118 do { if (ieee80211_debug_level & (level)) \
119 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
120 in_interrupt() ? 'I' : 'U', __func__ , ## args); } while (0)
121 static inline bool ieee80211_ratelimit_debug(u32 level)
122 {
123 return (ieee80211_debug_level & level) && net_ratelimit();
124 }
125 #else
126 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
127 static inline bool ieee80211_ratelimit_debug(u32 level)
128 {
129 return false;
130 }
131 #endif /* CONFIG_IEEE80211_DEBUG */
132
133 /*
134 * To use the debug system:
135 *
136 * If you are defining a new debug classification, simply add it to the #define
137 * list here in the form of:
138 *
139 * #define IEEE80211_DL_xxxx VALUE
140 *
141 * shifting value to the left one bit from the previous entry. xxxx should be
142 * the name of the classification (for example, WEP)
143 *
144 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
145 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
146 * to send output to that classification.
147 *
148 * To add your debug level to the list of levels seen when you perform
149 *
150 * % cat /proc/net/ieee80211/debug_level
151 *
152 * you simply need to add your entry to the ieee80211_debug_level array.
153 *
154 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
155 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
156 *
157 */
158
159 #define IEEE80211_DL_INFO (1<<0)
160 #define IEEE80211_DL_WX (1<<1)
161 #define IEEE80211_DL_SCAN (1<<2)
162 #define IEEE80211_DL_STATE (1<<3)
163 #define IEEE80211_DL_MGMT (1<<4)
164 #define IEEE80211_DL_FRAG (1<<5)
165 #define IEEE80211_DL_DROP (1<<7)
166
167 #define IEEE80211_DL_TX (1<<8)
168 #define IEEE80211_DL_RX (1<<9)
169 #define IEEE80211_DL_QOS (1<<31)
170
171 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
172 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
173 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
174
175 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
176 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
177 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
178 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
179 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
180 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
181 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
182 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
183 #define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
184 #include <linux/netdevice.h>
185 #include <linux/if_arp.h> /* ARPHRD_ETHER */
186
187 #ifndef WIRELESS_SPY
188 #define WIRELESS_SPY /* enable iwspy support */
189 #endif
190 #include <net/iw_handler.h> /* new driver API */
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) >> 4)
219
220 /* Action categories - 802.11h */
221 enum ieee80211_actioncategories {
222 WLAN_ACTION_SPECTRUM_MGMT = 0,
223 /* Reserved 1-127 */
224 /* Error 128-255 */
225 };
226
227 /* Action details - 802.11h */
228 enum ieee80211_actiondetails {
229 WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
230 WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
231 WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
232 WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
233 WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
234 /* 5 - 255 Reserved */
235 };
236
237 #define IEEE80211_STATMASK_SIGNAL (1<<0)
238 #define IEEE80211_STATMASK_RSSI (1<<1)
239 #define IEEE80211_STATMASK_NOISE (1<<2)
240 #define IEEE80211_STATMASK_RATE (1<<3)
241 #define IEEE80211_STATMASK_WEMASK 0x7
242
243 #define IEEE80211_CCK_MODULATION (1<<0)
244 #define IEEE80211_OFDM_MODULATION (1<<1)
245
246 #define IEEE80211_24GHZ_BAND (1<<0)
247 #define IEEE80211_52GHZ_BAND (1<<1)
248
249 #define IEEE80211_CCK_RATE_1MB 0x02
250 #define IEEE80211_CCK_RATE_2MB 0x04
251 #define IEEE80211_CCK_RATE_5MB 0x0B
252 #define IEEE80211_CCK_RATE_11MB 0x16
253 #define IEEE80211_OFDM_RATE_6MB 0x0C
254 #define IEEE80211_OFDM_RATE_9MB 0x12
255 #define IEEE80211_OFDM_RATE_12MB 0x18
256 #define IEEE80211_OFDM_RATE_18MB 0x24
257 #define IEEE80211_OFDM_RATE_24MB 0x30
258 #define IEEE80211_OFDM_RATE_36MB 0x48
259 #define IEEE80211_OFDM_RATE_48MB 0x60
260 #define IEEE80211_OFDM_RATE_54MB 0x6C
261 #define IEEE80211_BASIC_RATE_MASK 0x80
262
263 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
264 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
265 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
266 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
267 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
268 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
269 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
270 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
271 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
272 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
273 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
274 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
275
276 #define IEEE80211_CCK_RATES_MASK 0x0000000F
277 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
278 IEEE80211_CCK_RATE_2MB_MASK)
279 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
280 IEEE80211_CCK_RATE_5MB_MASK | \
281 IEEE80211_CCK_RATE_11MB_MASK)
282
283 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
284 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
285 IEEE80211_OFDM_RATE_12MB_MASK | \
286 IEEE80211_OFDM_RATE_24MB_MASK)
287 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
288 IEEE80211_OFDM_RATE_9MB_MASK | \
289 IEEE80211_OFDM_RATE_18MB_MASK | \
290 IEEE80211_OFDM_RATE_36MB_MASK | \
291 IEEE80211_OFDM_RATE_48MB_MASK | \
292 IEEE80211_OFDM_RATE_54MB_MASK)
293 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
294 IEEE80211_CCK_DEFAULT_RATES_MASK)
295
296 #define IEEE80211_NUM_OFDM_RATES 8
297 #define IEEE80211_NUM_CCK_RATES 4
298 #define IEEE80211_OFDM_SHIFT_MASK_A 4
299
300 /* NOTE: This data is for statistical purposes; not all hardware provides this
301 * information for frames received.
302 * For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
303 */
304 struct ieee80211_rx_stats {
305 u32 mac_time;
306 s8 rssi;
307 u8 signal;
308 u8 noise;
309 u16 rate; /* in 100 kbps */
310 u8 received_channel;
311 u8 control;
312 u8 mask;
313 u8 freq;
314 u16 len;
315 u64 tsf;
316 u32 beacon_time;
317 };
318
319 /* IEEE 802.11 requires that STA supports concurrent reception of at least
320 * three fragmented frames. This define can be increased to support more
321 * concurrent frames, but it should be noted that each entry can consume about
322 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
323 #define IEEE80211_FRAG_CACHE_LEN 4
324
325 struct ieee80211_frag_entry {
326 unsigned long first_frag_time;
327 unsigned int seq;
328 unsigned int last_frag;
329 struct sk_buff *skb;
330 u8 src_addr[ETH_ALEN];
331 u8 dst_addr[ETH_ALEN];
332 };
333
334 struct ieee80211_stats {
335 unsigned int tx_unicast_frames;
336 unsigned int tx_multicast_frames;
337 unsigned int tx_fragments;
338 unsigned int tx_unicast_octets;
339 unsigned int tx_multicast_octets;
340 unsigned int tx_deferred_transmissions;
341 unsigned int tx_single_retry_frames;
342 unsigned int tx_multiple_retry_frames;
343 unsigned int tx_retry_limit_exceeded;
344 unsigned int tx_discards;
345 unsigned int rx_unicast_frames;
346 unsigned int rx_multicast_frames;
347 unsigned int rx_fragments;
348 unsigned int rx_unicast_octets;
349 unsigned int rx_multicast_octets;
350 unsigned int rx_fcs_errors;
351 unsigned int rx_discards_no_buffer;
352 unsigned int tx_discards_wrong_sa;
353 unsigned int rx_discards_undecryptable;
354 unsigned int rx_message_in_msg_fragments;
355 unsigned int rx_message_in_bad_msg_fragments;
356 };
357
358 struct ieee80211_device;
359
360 #define SEC_KEY_1 (1<<0)
361 #define SEC_KEY_2 (1<<1)
362 #define SEC_KEY_3 (1<<2)
363 #define SEC_KEY_4 (1<<3)
364 #define SEC_ACTIVE_KEY (1<<4)
365 #define SEC_AUTH_MODE (1<<5)
366 #define SEC_UNICAST_GROUP (1<<6)
367 #define SEC_LEVEL (1<<7)
368 #define SEC_ENABLED (1<<8)
369 #define SEC_ENCRYPT (1<<9)
370
371 #define SEC_LEVEL_0 0 /* None */
372 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
373 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
374 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
375 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
376
377 #define SEC_ALG_NONE 0
378 #define SEC_ALG_WEP 1
379 #define SEC_ALG_TKIP 2
380 #define SEC_ALG_CCMP 3
381
382 #define WEP_KEYS 4
383 #define WEP_KEY_LEN 13
384 #define SCM_KEY_LEN 32
385 #define SCM_TEMPORAL_KEY_LENGTH 16
386
387 struct ieee80211_security {
388 u16 active_key:2,
389 enabled:1,
390 auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
391 u8 encode_alg[WEP_KEYS];
392 u8 key_sizes[WEP_KEYS];
393 u8 keys[WEP_KEYS][SCM_KEY_LEN];
394 u8 level;
395 u16 flags;
396 } __attribute__ ((packed));
397
398 /*
399
400 802.11 data frame from AP
401
402 ,-------------------------------------------------------------------.
403 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
404 |------|------|---------|---------|---------|------|---------|------|
405 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
406 | | tion | (BSSID) | | | ence | data | |
407 `-------------------------------------------------------------------'
408
409 Total: 28-2340 bytes
410
411 */
412
413 #define BEACON_PROBE_SSID_ID_POSITION 12
414
415 /* Management Frame Information Element Types */
416 enum ieee80211_mfie {
417 MFIE_TYPE_SSID = 0,
418 MFIE_TYPE_RATES = 1,
419 MFIE_TYPE_FH_SET = 2,
420 MFIE_TYPE_DS_SET = 3,
421 MFIE_TYPE_CF_SET = 4,
422 MFIE_TYPE_TIM = 5,
423 MFIE_TYPE_IBSS_SET = 6,
424 MFIE_TYPE_COUNTRY = 7,
425 MFIE_TYPE_HOP_PARAMS = 8,
426 MFIE_TYPE_HOP_TABLE = 9,
427 MFIE_TYPE_REQUEST = 10,
428 MFIE_TYPE_CHALLENGE = 16,
429 MFIE_TYPE_POWER_CONSTRAINT = 32,
430 MFIE_TYPE_POWER_CAPABILITY = 33,
431 MFIE_TYPE_TPC_REQUEST = 34,
432 MFIE_TYPE_TPC_REPORT = 35,
433 MFIE_TYPE_SUPP_CHANNELS = 36,
434 MFIE_TYPE_CSA = 37,
435 MFIE_TYPE_MEASURE_REQUEST = 38,
436 MFIE_TYPE_MEASURE_REPORT = 39,
437 MFIE_TYPE_QUIET = 40,
438 MFIE_TYPE_IBSS_DFS = 41,
439 MFIE_TYPE_ERP_INFO = 42,
440 MFIE_TYPE_RSN = 48,
441 MFIE_TYPE_RATES_EX = 50,
442 MFIE_TYPE_GENERIC = 221,
443 MFIE_TYPE_QOS_PARAMETER = 222,
444 };
445
446 struct ieee80211_hdr_1addr {
447 __le16 frame_ctl;
448 __le16 duration_id;
449 u8 addr1[ETH_ALEN];
450 u8 payload[0];
451 } __attribute__ ((packed));
452
453 struct ieee80211_hdr_2addr {
454 __le16 frame_ctl;
455 __le16 duration_id;
456 u8 addr1[ETH_ALEN];
457 u8 addr2[ETH_ALEN];
458 u8 payload[0];
459 } __attribute__ ((packed));
460
461 struct ieee80211_hdr_3addr {
462 __le16 frame_ctl;
463 __le16 duration_id;
464 u8 addr1[ETH_ALEN];
465 u8 addr2[ETH_ALEN];
466 u8 addr3[ETH_ALEN];
467 __le16 seq_ctl;
468 u8 payload[0];
469 } __attribute__ ((packed));
470
471 struct ieee80211_hdr_4addr {
472 __le16 frame_ctl;
473 __le16 duration_id;
474 u8 addr1[ETH_ALEN];
475 u8 addr2[ETH_ALEN];
476 u8 addr3[ETH_ALEN];
477 __le16 seq_ctl;
478 u8 addr4[ETH_ALEN];
479 u8 payload[0];
480 } __attribute__ ((packed));
481
482 struct ieee80211_hdr_3addrqos {
483 __le16 frame_ctl;
484 __le16 duration_id;
485 u8 addr1[ETH_ALEN];
486 u8 addr2[ETH_ALEN];
487 u8 addr3[ETH_ALEN];
488 __le16 seq_ctl;
489 u8 payload[0];
490 __le16 qos_ctl;
491 } __attribute__ ((packed));
492
493 struct ieee80211_info_element {
494 u8 id;
495 u8 len;
496 u8 data[0];
497 } __attribute__ ((packed));
498
499 /*
500 * These are the data types that can make up management packets
501 *
502 u16 auth_algorithm;
503 u16 auth_sequence;
504 u16 beacon_interval;
505 u16 capability;
506 u8 current_ap[ETH_ALEN];
507 u16 listen_interval;
508 struct {
509 u16 association_id:14, reserved:2;
510 } __attribute__ ((packed));
511 u32 time_stamp[2];
512 u16 reason;
513 u16 status;
514 */
515
516 struct ieee80211_auth {
517 struct ieee80211_hdr_3addr header;
518 __le16 algorithm;
519 __le16 transaction;
520 __le16 status;
521 /* challenge */
522 struct ieee80211_info_element info_element[0];
523 } __attribute__ ((packed));
524
525 struct ieee80211_channel_switch {
526 u8 id;
527 u8 len;
528 u8 mode;
529 u8 channel;
530 u8 count;
531 } __attribute__ ((packed));
532
533 struct ieee80211_action {
534 struct ieee80211_hdr_3addr header;
535 u8 category;
536 u8 action;
537 union {
538 struct ieee80211_action_exchange {
539 u8 token;
540 struct ieee80211_info_element info_element[0];
541 } exchange;
542 struct ieee80211_channel_switch channel_switch;
543
544 } format;
545 } __attribute__ ((packed));
546
547 struct ieee80211_disassoc {
548 struct ieee80211_hdr_3addr header;
549 __le16 reason;
550 } __attribute__ ((packed));
551
552 /* Alias deauth for disassoc */
553 #define ieee80211_deauth ieee80211_disassoc
554
555 struct ieee80211_probe_request {
556 struct ieee80211_hdr_3addr header;
557 /* SSID, supported rates */
558 struct ieee80211_info_element info_element[0];
559 } __attribute__ ((packed));
560
561 struct ieee80211_probe_response {
562 struct ieee80211_hdr_3addr header;
563 __le32 time_stamp[2];
564 __le16 beacon_interval;
565 __le16 capability;
566 /* SSID, supported rates, FH params, DS params,
567 * CF params, IBSS params, TIM (if beacon), RSN */
568 struct ieee80211_info_element info_element[0];
569 } __attribute__ ((packed));
570
571 /* Alias beacon for probe_response */
572 #define ieee80211_beacon ieee80211_probe_response
573
574 struct ieee80211_assoc_request {
575 struct ieee80211_hdr_3addr header;
576 __le16 capability;
577 __le16 listen_interval;
578 /* SSID, supported rates, RSN */
579 struct ieee80211_info_element info_element[0];
580 } __attribute__ ((packed));
581
582 struct ieee80211_reassoc_request {
583 struct ieee80211_hdr_3addr header;
584 __le16 capability;
585 __le16 listen_interval;
586 u8 current_ap[ETH_ALEN];
587 struct ieee80211_info_element info_element[0];
588 } __attribute__ ((packed));
589
590 struct ieee80211_assoc_response {
591 struct ieee80211_hdr_3addr header;
592 __le16 capability;
593 __le16 status;
594 __le16 aid;
595 /* supported rates */
596 struct ieee80211_info_element info_element[0];
597 } __attribute__ ((packed));
598
599 struct ieee80211_txb {
600 u8 nr_frags;
601 u8 encrypted;
602 u8 rts_included;
603 u8 reserved;
604 u16 frag_size;
605 u16 payload_size;
606 struct sk_buff *fragments[0];
607 };
608
609 /* SWEEP TABLE ENTRIES NUMBER */
610 #define MAX_SWEEP_TAB_ENTRIES 42
611 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
612 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
613 * only use 8, and then use extended rates for the remaining supported
614 * rates. Other APs, however, stick all of their supported rates on the
615 * main rates information element... */
616 #define MAX_RATES_LENGTH ((u8)12)
617 #define MAX_RATES_EX_LENGTH ((u8)16)
618 #define MAX_NETWORK_COUNT 128
619
620 #define CRC_LENGTH 4U
621
622 #define MAX_WPA_IE_LEN 64
623
624 #define NETWORK_HAS_OFDM (1<<1)
625 #define NETWORK_HAS_CCK (1<<2)
626
627 /* QoS structure */
628 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
629 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
630 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | \
631 NETWORK_HAS_QOS_INFORMATION)
632
633 /* 802.11h */
634 #define NETWORK_HAS_POWER_CONSTRAINT (1<<5)
635 #define NETWORK_HAS_CSA (1<<6)
636 #define NETWORK_HAS_QUIET (1<<7)
637 #define NETWORK_HAS_IBSS_DFS (1<<8)
638 #define NETWORK_HAS_TPC_REPORT (1<<9)
639
640 #define NETWORK_HAS_ERP_VALUE (1<<10)
641
642 #define QOS_QUEUE_NUM 4
643 #define QOS_OUI_LEN 3
644 #define QOS_OUI_TYPE 2
645 #define QOS_ELEMENT_ID 221
646 #define QOS_OUI_INFO_SUB_TYPE 0
647 #define QOS_OUI_PARAM_SUB_TYPE 1
648 #define QOS_VERSION_1 1
649 #define QOS_AIFSN_MIN_VALUE 2
650
651 struct ieee80211_qos_information_element {
652 u8 elementID;
653 u8 length;
654 u8 qui[QOS_OUI_LEN];
655 u8 qui_type;
656 u8 qui_subtype;
657 u8 version;
658 u8 ac_info;
659 } __attribute__ ((packed));
660
661 struct ieee80211_qos_ac_parameter {
662 u8 aci_aifsn;
663 u8 ecw_min_max;
664 __le16 tx_op_limit;
665 } __attribute__ ((packed));
666
667 struct ieee80211_qos_parameter_info {
668 struct ieee80211_qos_information_element info_element;
669 u8 reserved;
670 struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
671 } __attribute__ ((packed));
672
673 struct ieee80211_qos_parameters {
674 __le16 cw_min[QOS_QUEUE_NUM];
675 __le16 cw_max[QOS_QUEUE_NUM];
676 u8 aifs[QOS_QUEUE_NUM];
677 u8 flag[QOS_QUEUE_NUM];
678 __le16 tx_op_limit[QOS_QUEUE_NUM];
679 } __attribute__ ((packed));
680
681 struct ieee80211_qos_data {
682 struct ieee80211_qos_parameters parameters;
683 int active;
684 int supported;
685 u8 param_count;
686 u8 old_param_count;
687 };
688
689 struct ieee80211_tim_parameters {
690 u8 tim_count;
691 u8 tim_period;
692 } __attribute__ ((packed));
693
694 /*******************************************************/
695
696 enum { /* ieee80211_basic_report.map */
697 IEEE80211_BASIC_MAP_BSS = (1 << 0),
698 IEEE80211_BASIC_MAP_OFDM = (1 << 1),
699 IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
700 IEEE80211_BASIC_MAP_RADAR = (1 << 3),
701 IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
702 /* Bits 5-7 are reserved */
703
704 };
705 struct ieee80211_basic_report {
706 u8 channel;
707 __le64 start_time;
708 __le16 duration;
709 u8 map;
710 } __attribute__ ((packed));
711
712 enum { /* ieee80211_measurement_request.mode */
713 /* Bit 0 is reserved */
714 IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
715 IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
716 IEEE80211_MEASUREMENT_REPORT = (1 << 3),
717 /* Bits 4-7 are reserved */
718 };
719
720 enum {
721 IEEE80211_REPORT_BASIC = 0, /* required */
722 IEEE80211_REPORT_CCA = 1, /* optional */
723 IEEE80211_REPORT_RPI = 2, /* optional */
724 /* 3-255 reserved */
725 };
726
727 struct ieee80211_measurement_params {
728 u8 channel;
729 __le64 start_time;
730 __le16 duration;
731 } __attribute__ ((packed));
732
733 struct ieee80211_measurement_request {
734 struct ieee80211_info_element ie;
735 u8 token;
736 u8 mode;
737 u8 type;
738 struct ieee80211_measurement_params params[0];
739 } __attribute__ ((packed));
740
741 struct ieee80211_measurement_report {
742 struct ieee80211_info_element ie;
743 u8 token;
744 u8 mode;
745 u8 type;
746 union {
747 struct ieee80211_basic_report basic[0];
748 } u;
749 } __attribute__ ((packed));
750
751 struct ieee80211_tpc_report {
752 u8 transmit_power;
753 u8 link_margin;
754 } __attribute__ ((packed));
755
756 struct ieee80211_channel_map {
757 u8 channel;
758 u8 map;
759 } __attribute__ ((packed));
760
761 struct ieee80211_ibss_dfs {
762 struct ieee80211_info_element ie;
763 u8 owner[ETH_ALEN];
764 u8 recovery_interval;
765 struct ieee80211_channel_map channel_map[0];
766 };
767
768 struct ieee80211_csa {
769 u8 mode;
770 u8 channel;
771 u8 count;
772 } __attribute__ ((packed));
773
774 struct ieee80211_quiet {
775 u8 count;
776 u8 period;
777 u8 duration;
778 u8 offset;
779 } __attribute__ ((packed));
780
781 struct ieee80211_network {
782 /* These entries are used to identify a unique network */
783 u8 bssid[ETH_ALEN];
784 u8 channel;
785 /* Ensure null-terminated for any debug msgs */
786 u8 ssid[IW_ESSID_MAX_SIZE + 1];
787 u8 ssid_len;
788
789 struct ieee80211_qos_data qos_data;
790
791 /* These are network statistics */
792 struct ieee80211_rx_stats stats;
793 u16 capability;
794 u8 rates[MAX_RATES_LENGTH];
795 u8 rates_len;
796 u8 rates_ex[MAX_RATES_EX_LENGTH];
797 u8 rates_ex_len;
798 unsigned long last_scanned;
799 u8 mode;
800 u32 flags;
801 u32 last_associate;
802 u32 time_stamp[2];
803 u16 beacon_interval;
804 u16 listen_interval;
805 u16 atim_window;
806 u8 erp_value;
807 u8 wpa_ie[MAX_WPA_IE_LEN];
808 size_t wpa_ie_len;
809 u8 rsn_ie[MAX_WPA_IE_LEN];
810 size_t rsn_ie_len;
811 struct ieee80211_tim_parameters tim;
812
813 /* 802.11h info */
814
815 /* Power Constraint - mandatory if spctrm mgmt required */
816 u8 power_constraint;
817
818 /* TPC Report - mandatory if spctrm mgmt required */
819 struct ieee80211_tpc_report tpc_report;
820
821 /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
822 * NOTE: This is variable length and so must be allocated dynamically */
823 struct ieee80211_ibss_dfs *ibss_dfs;
824
825 /* Channel Switch Announcement - optional if spctrm mgmt required */
826 struct ieee80211_csa csa;
827
828 /* Quiet - optional if spctrm mgmt required */
829 struct ieee80211_quiet quiet;
830
831 struct list_head list;
832 };
833
834 enum ieee80211_state {
835 IEEE80211_UNINITIALIZED = 0,
836 IEEE80211_INITIALIZED,
837 IEEE80211_ASSOCIATING,
838 IEEE80211_ASSOCIATED,
839 IEEE80211_AUTHENTICATING,
840 IEEE80211_AUTHENTICATED,
841 IEEE80211_SHUTDOWN
842 };
843
844 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
845 #define DEFAULT_FTS 2346
846
847 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
848 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
849 #define CFG_IEEE80211_RTS (1<<2)
850
851 #define IEEE80211_24GHZ_MIN_CHANNEL 1
852 #define IEEE80211_24GHZ_MAX_CHANNEL 14
853 #define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
854 IEEE80211_24GHZ_MIN_CHANNEL + 1)
855
856 #define IEEE80211_52GHZ_MIN_CHANNEL 34
857 #define IEEE80211_52GHZ_MAX_CHANNEL 165
858 #define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
859 IEEE80211_52GHZ_MIN_CHANNEL + 1)
860
861 enum {
862 IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
863 IEEE80211_CH_80211H_RULES = (1 << 1),
864 IEEE80211_CH_B_ONLY = (1 << 2),
865 IEEE80211_CH_NO_IBSS = (1 << 3),
866 IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
867 IEEE80211_CH_RADAR_DETECT = (1 << 5),
868 IEEE80211_CH_INVALID = (1 << 6),
869 };
870
871 struct ieee80211_channel {
872 u32 freq; /* in MHz */
873 u8 channel;
874 u8 flags;
875 u8 max_power; /* in dBm */
876 };
877
878 struct ieee80211_geo {
879 u8 name[4];
880 u8 bg_channels;
881 u8 a_channels;
882 struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
883 struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
884 };
885
886 struct ieee80211_device {
887 struct net_device *dev;
888 struct ieee80211_security sec;
889
890 /* Bookkeeping structures */
891 struct net_device_stats stats;
892 struct ieee80211_stats ieee_stats;
893
894 struct ieee80211_geo geo;
895
896 /* Probe / Beacon management */
897 struct list_head network_free_list;
898 struct list_head network_list;
899 struct ieee80211_network *networks;
900 int scans;
901 int scan_age;
902
903 int iw_mode; /* operating mode (IW_MODE_*) */
904 struct iw_spy_data spy_data; /* iwspy support */
905
906 spinlock_t lock;
907
908 int tx_headroom; /* Set to size of any additional room needed at front
909 * of allocated Tx SKBs */
910 u32 config;
911
912 /* WEP and other encryption related settings at the device level */
913 int open_wep; /* Set to 1 to allow unencrypted frames */
914
915 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
916 * WEP key changes */
917
918 /* If the host performs {en,de}cryption, then set to 1 */
919 int host_encrypt;
920 int host_encrypt_msdu;
921 int host_decrypt;
922 /* host performs multicast decryption */
923 int host_mc_decrypt;
924
925 /* host should strip IV and ICV from protected frames */
926 /* meaningful only when hardware decryption is being used */
927 int host_strip_iv_icv;
928
929 int host_open_frag;
930 int host_build_iv;
931 int ieee802_1x; /* is IEEE 802.1X used */
932
933 /* WPA data */
934 int wpa_enabled;
935 int drop_unencrypted;
936 int privacy_invoked;
937 size_t wpa_ie_len;
938 u8 *wpa_ie;
939
940 struct lib80211_crypt_info crypt_info;
941
942 int bcrx_sta_key; /* use individual keys to override default keys even
943 * with RX of broad/multicast frames */
944
945 /* Fragmentation structures */
946 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
947 unsigned int frag_next_idx;
948 u16 fts; /* Fragmentation Threshold */
949 u16 rts; /* RTS threshold */
950
951 /* Association info */
952 u8 bssid[ETH_ALEN];
953
954 enum ieee80211_state state;
955
956 int mode; /* A, B, G */
957 int modulation; /* CCK, OFDM */
958 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
959 int abg_true; /* ABG flag */
960
961 int perfect_rssi;
962 int worst_rssi;
963
964 u16 prev_seq_ctl; /* used to drop duplicate frames */
965
966 /* Callback functions */
967 void (*set_security) (struct net_device * dev,
968 struct ieee80211_security * sec);
969 int (*hard_start_xmit) (struct ieee80211_txb * txb,
970 struct net_device * dev, int pri);
971 int (*reset_port) (struct net_device * dev);
972 int (*is_queue_full) (struct net_device * dev, int pri);
973
974 int (*handle_management) (struct net_device * dev,
975 struct ieee80211_network * network, u16 type);
976 int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
977
978 /* Typical STA methods */
979 int (*handle_auth) (struct net_device * dev,
980 struct ieee80211_auth * auth);
981 int (*handle_deauth) (struct net_device * dev,
982 struct ieee80211_deauth * auth);
983 int (*handle_action) (struct net_device * dev,
984 struct ieee80211_action * action,
985 struct ieee80211_rx_stats * stats);
986 int (*handle_disassoc) (struct net_device * dev,
987 struct ieee80211_disassoc * assoc);
988 int (*handle_beacon) (struct net_device * dev,
989 struct ieee80211_beacon * beacon,
990 struct ieee80211_network * network);
991 int (*handle_probe_response) (struct net_device * dev,
992 struct ieee80211_probe_response * resp,
993 struct ieee80211_network * network);
994 int (*handle_probe_request) (struct net_device * dev,
995 struct ieee80211_probe_request * req,
996 struct ieee80211_rx_stats * stats);
997 int (*handle_assoc_response) (struct net_device * dev,
998 struct ieee80211_assoc_response * resp,
999 struct ieee80211_network * network);
1000
1001 /* Typical AP methods */
1002 int (*handle_assoc_request) (struct net_device * dev);
1003 int (*handle_reassoc_request) (struct net_device * dev,
1004 struct ieee80211_reassoc_request * req);
1005
1006 /* This must be the last item so that it points to the data
1007 * allocated beyond this structure by alloc_ieee80211 */
1008 u8 priv[0];
1009 };
1010
1011 #define IEEE_A (1<<0)
1012 #define IEEE_B (1<<1)
1013 #define IEEE_G (1<<2)
1014 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
1015
1016 static inline void *ieee80211_priv(struct net_device *dev)
1017 {
1018 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
1019 }
1020
1021 static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
1022 int mode)
1023 {
1024 /*
1025 * It is possible for both access points and our device to support
1026 * combinations of modes, so as long as there is one valid combination
1027 * of ap/device supported modes, then return success
1028 *
1029 */
1030 if ((mode & IEEE_A) &&
1031 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1032 (ieee->freq_band & IEEE80211_52GHZ_BAND))
1033 return 1;
1034
1035 if ((mode & IEEE_G) &&
1036 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1037 (ieee->freq_band & IEEE80211_24GHZ_BAND))
1038 return 1;
1039
1040 if ((mode & IEEE_B) &&
1041 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
1042 (ieee->freq_band & IEEE80211_24GHZ_BAND))
1043 return 1;
1044
1045 return 0;
1046 }
1047
1048 static inline int ieee80211_get_hdrlen(u16 fc)
1049 {
1050 int hdrlen = IEEE80211_3ADDR_LEN;
1051 u16 stype = WLAN_FC_GET_STYPE(fc);
1052
1053 switch (WLAN_FC_GET_TYPE(fc)) {
1054 case IEEE80211_FTYPE_DATA:
1055 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
1056 hdrlen = IEEE80211_4ADDR_LEN;
1057 if (stype & IEEE80211_STYPE_QOS_DATA)
1058 hdrlen += 2;
1059 break;
1060 case IEEE80211_FTYPE_CTL:
1061 switch (WLAN_FC_GET_STYPE(fc)) {
1062 case IEEE80211_STYPE_CTS:
1063 case IEEE80211_STYPE_ACK:
1064 hdrlen = IEEE80211_1ADDR_LEN;
1065 break;
1066 default:
1067 hdrlen = IEEE80211_2ADDR_LEN;
1068 break;
1069 }
1070 break;
1071 }
1072
1073 return hdrlen;
1074 }
1075
1076 static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
1077 {
1078 switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control))) {
1079 case IEEE80211_1ADDR_LEN:
1080 return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1081 case IEEE80211_2ADDR_LEN:
1082 return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1083 case IEEE80211_3ADDR_LEN:
1084 return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1085 case IEEE80211_4ADDR_LEN:
1086 return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1087 }
1088 return NULL;
1089 }
1090
1091 static inline int ieee80211_is_ofdm_rate(u8 rate)
1092 {
1093 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1094 case IEEE80211_OFDM_RATE_6MB:
1095 case IEEE80211_OFDM_RATE_9MB:
1096 case IEEE80211_OFDM_RATE_12MB:
1097 case IEEE80211_OFDM_RATE_18MB:
1098 case IEEE80211_OFDM_RATE_24MB:
1099 case IEEE80211_OFDM_RATE_36MB:
1100 case IEEE80211_OFDM_RATE_48MB:
1101 case IEEE80211_OFDM_RATE_54MB:
1102 return 1;
1103 }
1104 return 0;
1105 }
1106
1107 static inline int ieee80211_is_cck_rate(u8 rate)
1108 {
1109 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1110 case IEEE80211_CCK_RATE_1MB:
1111 case IEEE80211_CCK_RATE_2MB:
1112 case IEEE80211_CCK_RATE_5MB:
1113 case IEEE80211_CCK_RATE_11MB:
1114 return 1;
1115 }
1116 return 0;
1117 }
1118
1119 /* ieee80211.c */
1120 extern void free_ieee80211(struct net_device *dev);
1121 extern struct net_device *alloc_ieee80211(int sizeof_priv);
1122
1123 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1124
1125 /* ieee80211_tx.c */
1126 extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
1127 extern void ieee80211_txb_free(struct ieee80211_txb *);
1128
1129 /* ieee80211_rx.c */
1130 extern void ieee80211_rx_any(struct ieee80211_device *ieee,
1131 struct sk_buff *skb, struct ieee80211_rx_stats *stats);
1132 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1133 struct ieee80211_rx_stats *rx_stats);
1134 /* make sure to set stats->len */
1135 extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1136 struct ieee80211_hdr_4addr *header,
1137 struct ieee80211_rx_stats *stats);
1138 extern void ieee80211_network_reset(struct ieee80211_network *network);
1139
1140 /* ieee80211_geo.c */
1141 extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1142 *ieee);
1143 extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1144 const struct ieee80211_geo *geo);
1145
1146 extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1147 u8 channel);
1148 extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1149 u8 channel);
1150 extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1151 extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
1152 u8 channel);
1153 extern const struct ieee80211_channel *ieee80211_get_channel(struct
1154 ieee80211_device
1155 *ieee, u8 channel);
1156 extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
1157 u8 channel);
1158
1159 /* ieee80211_wx.c */
1160 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1161 struct iw_request_info *info,
1162 union iwreq_data *wrqu, char *key);
1163 extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1164 struct iw_request_info *info,
1165 union iwreq_data *wrqu, char *key);
1166 extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1167 struct iw_request_info *info,
1168 union iwreq_data *wrqu, char *key);
1169 extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1170 struct iw_request_info *info,
1171 union iwreq_data *wrqu, char *extra);
1172 extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1173 struct iw_request_info *info,
1174 union iwreq_data *wrqu, char *extra);
1175
1176 static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
1177 {
1178 ieee->scans++;
1179 }
1180
1181 static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
1182 {
1183 return ieee->scans;
1184 }
1185
1186 #endif /* IEEE80211_H */
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