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mac80211: split up and insert custom IEs correctly
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / include / linux / ieee80211.h
blobaeea282bd2fe697d1dd16e86de747ba754b5a974
1 /*
2 * IEEE 802.11 defines
3 *
4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
5 * <jkmaline@cc.hut.fi>
6 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
7 * Copyright (c) 2005, Devicescape Software, Inc.
8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15 #ifndef LINUX_IEEE80211_H
16 #define LINUX_IEEE80211_H
17
18 #include <linux/types.h>
19 #include <asm/byteorder.h>
20
21 /*
22 * DS bit usage
23 *
24 * TA = transmitter address
25 * RA = receiver address
26 * DA = destination address
27 * SA = source address
28 *
29 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use
30 * -----------------------------------------------------------------
31 * 0 0 DA SA BSSID - IBSS/DLS
32 * 0 1 DA BSSID SA - AP -> STA
33 * 1 0 BSSID SA DA - AP <- STA
34 * 1 1 RA TA DA SA unspecified (WDS)
35 */
36
37 #define FCS_LEN 4
38
39 #define IEEE80211_FCTL_VERS 0x0003
40 #define IEEE80211_FCTL_FTYPE 0x000c
41 #define IEEE80211_FCTL_STYPE 0x00f0
42 #define IEEE80211_FCTL_TODS 0x0100
43 #define IEEE80211_FCTL_FROMDS 0x0200
44 #define IEEE80211_FCTL_MOREFRAGS 0x0400
45 #define IEEE80211_FCTL_RETRY 0x0800
46 #define IEEE80211_FCTL_PM 0x1000
47 #define IEEE80211_FCTL_MOREDATA 0x2000
48 #define IEEE80211_FCTL_PROTECTED 0x4000
49 #define IEEE80211_FCTL_ORDER 0x8000
50
51 #define IEEE80211_SCTL_FRAG 0x000F
52 #define IEEE80211_SCTL_SEQ 0xFFF0
53
54 #define IEEE80211_FTYPE_MGMT 0x0000
55 #define IEEE80211_FTYPE_CTL 0x0004
56 #define IEEE80211_FTYPE_DATA 0x0008
57
58 /* management */
59 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
60 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
61 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
62 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
63 #define IEEE80211_STYPE_PROBE_REQ 0x0040
64 #define IEEE80211_STYPE_PROBE_RESP 0x0050
65 #define IEEE80211_STYPE_BEACON 0x0080
66 #define IEEE80211_STYPE_ATIM 0x0090
67 #define IEEE80211_STYPE_DISASSOC 0x00A0
68 #define IEEE80211_STYPE_AUTH 0x00B0
69 #define IEEE80211_STYPE_DEAUTH 0x00C0
70 #define IEEE80211_STYPE_ACTION 0x00D0
71
72 /* control */
73 #define IEEE80211_STYPE_BACK_REQ 0x0080
74 #define IEEE80211_STYPE_BACK 0x0090
75 #define IEEE80211_STYPE_PSPOLL 0x00A0
76 #define IEEE80211_STYPE_RTS 0x00B0
77 #define IEEE80211_STYPE_CTS 0x00C0
78 #define IEEE80211_STYPE_ACK 0x00D0
79 #define IEEE80211_STYPE_CFEND 0x00E0
80 #define IEEE80211_STYPE_CFENDACK 0x00F0
81
82 /* data */
83 #define IEEE80211_STYPE_DATA 0x0000
84 #define IEEE80211_STYPE_DATA_CFACK 0x0010
85 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
86 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
87 #define IEEE80211_STYPE_NULLFUNC 0x0040
88 #define IEEE80211_STYPE_CFACK 0x0050
89 #define IEEE80211_STYPE_CFPOLL 0x0060
90 #define IEEE80211_STYPE_CFACKPOLL 0x0070
91 #define IEEE80211_STYPE_QOS_DATA 0x0080
92 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
93 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
94 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
95 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
96 #define IEEE80211_STYPE_QOS_CFACK 0x00D0
97 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
98 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
99
100
101 /* miscellaneous IEEE 802.11 constants */
102 #define IEEE80211_MAX_FRAG_THRESHOLD 2352
103 #define IEEE80211_MAX_RTS_THRESHOLD 2353
104 #define IEEE80211_MAX_AID 2007
105 #define IEEE80211_MAX_TIM_LEN 251
106 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
107 6.2.1.1.2.
108
109 802.11e clarifies the figure in section 7.1.2. The frame body is
110 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
111 #define IEEE80211_MAX_DATA_LEN 2304
112 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
113 #define IEEE80211_MAX_FRAME_LEN 2352
114
115 #define IEEE80211_MAX_SSID_LEN 32
116
117 #define IEEE80211_MAX_MESH_ID_LEN 32
118
119 #define IEEE80211_QOS_CTL_LEN 2
120 #define IEEE80211_QOS_CTL_TID_MASK 0x000F
121 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
122
123 struct ieee80211_hdr {
124 __le16 frame_control;
125 __le16 duration_id;
126 u8 addr1[6];
127 u8 addr2[6];
128 u8 addr3[6];
129 __le16 seq_ctrl;
130 u8 addr4[6];
131 } __attribute__ ((packed));
132
133 /**
134 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
135 * @fc: frame control bytes in little-endian byteorder
136 */
137 static inline int ieee80211_has_tods(__le16 fc)
138 {
139 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
140 }
141
142 /**
143 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
144 * @fc: frame control bytes in little-endian byteorder
145 */
146 static inline int ieee80211_has_fromds(__le16 fc)
147 {
148 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
149 }
150
151 /**
152 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
153 * @fc: frame control bytes in little-endian byteorder
154 */
155 static inline int ieee80211_has_a4(__le16 fc)
156 {
157 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
158 return (fc & tmp) == tmp;
159 }
160
161 /**
162 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
163 * @fc: frame control bytes in little-endian byteorder
164 */
165 static inline int ieee80211_has_morefrags(__le16 fc)
166 {
167 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
168 }
169
170 /**
171 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
172 * @fc: frame control bytes in little-endian byteorder
173 */
174 static inline int ieee80211_has_retry(__le16 fc)
175 {
176 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
177 }
178
179 /**
180 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
181 * @fc: frame control bytes in little-endian byteorder
182 */
183 static inline int ieee80211_has_pm(__le16 fc)
184 {
185 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
186 }
187
188 /**
189 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
190 * @fc: frame control bytes in little-endian byteorder
191 */
192 static inline int ieee80211_has_moredata(__le16 fc)
193 {
194 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
195 }
196
197 /**
198 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
199 * @fc: frame control bytes in little-endian byteorder
200 */
201 static inline int ieee80211_has_protected(__le16 fc)
202 {
203 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
204 }
205
206 /**
207 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
208 * @fc: frame control bytes in little-endian byteorder
209 */
210 static inline int ieee80211_has_order(__le16 fc)
211 {
212 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
213 }
214
215 /**
216 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
217 * @fc: frame control bytes in little-endian byteorder
218 */
219 static inline int ieee80211_is_mgmt(__le16 fc)
220 {
221 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
222 cpu_to_le16(IEEE80211_FTYPE_MGMT);
223 }
224
225 /**
226 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
227 * @fc: frame control bytes in little-endian byteorder
228 */
229 static inline int ieee80211_is_ctl(__le16 fc)
230 {
231 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
232 cpu_to_le16(IEEE80211_FTYPE_CTL);
233 }
234
235 /**
236 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
237 * @fc: frame control bytes in little-endian byteorder
238 */
239 static inline int ieee80211_is_data(__le16 fc)
240 {
241 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
242 cpu_to_le16(IEEE80211_FTYPE_DATA);
243 }
244
245 /**
246 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
247 * @fc: frame control bytes in little-endian byteorder
248 */
249 static inline int ieee80211_is_data_qos(__le16 fc)
250 {
251 /*
252 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
253 * to check the one bit
254 */
255 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
256 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
257 }
258
259 /**
260 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
261 * @fc: frame control bytes in little-endian byteorder
262 */
263 static inline int ieee80211_is_data_present(__le16 fc)
264 {
265 /*
266 * mask with 0x40 and test that that bit is clear to only return true
267 * for the data-containing substypes.
268 */
269 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
270 cpu_to_le16(IEEE80211_FTYPE_DATA);
271 }
272
273 /**
274 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
275 * @fc: frame control bytes in little-endian byteorder
276 */
277 static inline int ieee80211_is_assoc_req(__le16 fc)
278 {
279 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
280 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
281 }
282
283 /**
284 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
285 * @fc: frame control bytes in little-endian byteorder
286 */
287 static inline int ieee80211_is_assoc_resp(__le16 fc)
288 {
289 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
290 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
291 }
292
293 /**
294 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
295 * @fc: frame control bytes in little-endian byteorder
296 */
297 static inline int ieee80211_is_reassoc_req(__le16 fc)
298 {
299 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
300 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
301 }
302
303 /**
304 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
305 * @fc: frame control bytes in little-endian byteorder
306 */
307 static inline int ieee80211_is_reassoc_resp(__le16 fc)
308 {
309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
310 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
311 }
312
313 /**
314 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
315 * @fc: frame control bytes in little-endian byteorder
316 */
317 static inline int ieee80211_is_probe_req(__le16 fc)
318 {
319 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
320 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
321 }
322
323 /**
324 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
325 * @fc: frame control bytes in little-endian byteorder
326 */
327 static inline int ieee80211_is_probe_resp(__le16 fc)
328 {
329 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
330 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
331 }
332
333 /**
334 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
335 * @fc: frame control bytes in little-endian byteorder
336 */
337 static inline int ieee80211_is_beacon(__le16 fc)
338 {
339 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
340 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
341 }
342
343 /**
344 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
345 * @fc: frame control bytes in little-endian byteorder
346 */
347 static inline int ieee80211_is_atim(__le16 fc)
348 {
349 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
350 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
351 }
352
353 /**
354 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
355 * @fc: frame control bytes in little-endian byteorder
356 */
357 static inline int ieee80211_is_disassoc(__le16 fc)
358 {
359 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
360 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
361 }
362
363 /**
364 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
365 * @fc: frame control bytes in little-endian byteorder
366 */
367 static inline int ieee80211_is_auth(__le16 fc)
368 {
369 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
370 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
371 }
372
373 /**
374 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
375 * @fc: frame control bytes in little-endian byteorder
376 */
377 static inline int ieee80211_is_deauth(__le16 fc)
378 {
379 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
380 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
381 }
382
383 /**
384 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
385 * @fc: frame control bytes in little-endian byteorder
386 */
387 static inline int ieee80211_is_action(__le16 fc)
388 {
389 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
390 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
391 }
392
393 /**
394 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
395 * @fc: frame control bytes in little-endian byteorder
396 */
397 static inline int ieee80211_is_back_req(__le16 fc)
398 {
399 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
400 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
401 }
402
403 /**
404 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
405 * @fc: frame control bytes in little-endian byteorder
406 */
407 static inline int ieee80211_is_back(__le16 fc)
408 {
409 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
410 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
411 }
412
413 /**
414 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
415 * @fc: frame control bytes in little-endian byteorder
416 */
417 static inline int ieee80211_is_pspoll(__le16 fc)
418 {
419 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
420 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
421 }
422
423 /**
424 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
425 * @fc: frame control bytes in little-endian byteorder
426 */
427 static inline int ieee80211_is_rts(__le16 fc)
428 {
429 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
430 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
431 }
432
433 /**
434 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
435 * @fc: frame control bytes in little-endian byteorder
436 */
437 static inline int ieee80211_is_cts(__le16 fc)
438 {
439 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
440 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
441 }
442
443 /**
444 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
445 * @fc: frame control bytes in little-endian byteorder
446 */
447 static inline int ieee80211_is_ack(__le16 fc)
448 {
449 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
450 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
451 }
452
453 /**
454 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
455 * @fc: frame control bytes in little-endian byteorder
456 */
457 static inline int ieee80211_is_cfend(__le16 fc)
458 {
459 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
460 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
461 }
462
463 /**
464 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
465 * @fc: frame control bytes in little-endian byteorder
466 */
467 static inline int ieee80211_is_cfendack(__le16 fc)
468 {
469 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
470 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
471 }
472
473 /**
474 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
475 * @fc: frame control bytes in little-endian byteorder
476 */
477 static inline int ieee80211_is_nullfunc(__le16 fc)
478 {
479 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
480 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
481 }
482
483 /**
484 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
485 * @fc: frame control bytes in little-endian byteorder
486 */
487 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
488 {
489 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
490 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
491 }
492
493 struct ieee80211s_hdr {
494 u8 flags;
495 u8 ttl;
496 __le32 seqnum;
497 u8 eaddr1[6];
498 u8 eaddr2[6];
499 u8 eaddr3[6];
500 } __attribute__ ((packed));
501
502 /* Mesh flags */
503 #define MESH_FLAGS_AE_A4 0x1
504 #define MESH_FLAGS_AE_A5_A6 0x2
505 #define MESH_FLAGS_AE 0x3
506 #define MESH_FLAGS_PS_DEEP 0x4
507
508 /**
509 * struct ieee80211_quiet_ie
510 *
511 * This structure refers to "Quiet information element"
512 */
513 struct ieee80211_quiet_ie {
514 u8 count;
515 u8 period;
516 __le16 duration;
517 __le16 offset;
518 } __attribute__ ((packed));
519
520 /**
521 * struct ieee80211_msrment_ie
522 *
523 * This structure refers to "Measurement Request/Report information element"
524 */
525 struct ieee80211_msrment_ie {
526 u8 token;
527 u8 mode;
528 u8 type;
529 u8 request[0];
530 } __attribute__ ((packed));
531
532 /**
533 * struct ieee80211_channel_sw_ie
534 *
535 * This structure refers to "Channel Switch Announcement information element"
536 */
537 struct ieee80211_channel_sw_ie {
538 u8 mode;
539 u8 new_ch_num;
540 u8 count;
541 } __attribute__ ((packed));
542
543 /**
544 * struct ieee80211_tim
545 *
546 * This structure refers to "Traffic Indication Map information element"
547 */
548 struct ieee80211_tim_ie {
549 u8 dtim_count;
550 u8 dtim_period;
551 u8 bitmap_ctrl;
552 /* variable size: 1 - 251 bytes */
553 u8 virtual_map[1];
554 } __attribute__ ((packed));
555
556 /**
557 * struct ieee80211_meshconf_ie
558 *
559 * This structure refers to "Mesh Configuration information element"
560 */
561 struct ieee80211_meshconf_ie {
562 u8 meshconf_psel;
563 u8 meshconf_pmetric;
564 u8 meshconf_congest;
565 u8 meshconf_synch;
566 u8 meshconf_auth;
567 u8 meshconf_form;
568 u8 meshconf_cap;
569 } __attribute__ ((packed));
570
571 /**
572 * struct ieee80211_rann_ie
573 *
574 * This structure refers to "Root Announcement information element"
575 */
576 struct ieee80211_rann_ie {
577 u8 rann_flags;
578 u8 rann_hopcount;
579 u8 rann_ttl;
580 u8 rann_addr[6];
581 u32 rann_seq;
582 u32 rann_metric;
583 } __attribute__ ((packed));
584
585 #define WLAN_SA_QUERY_TR_ID_LEN 2
586
587 struct ieee80211_mgmt {
588 __le16 frame_control;
589 __le16 duration;
590 u8 da[6];
591 u8 sa[6];
592 u8 bssid[6];
593 __le16 seq_ctrl;
594 union {
595 struct {
596 __le16 auth_alg;
597 __le16 auth_transaction;
598 __le16 status_code;
599 /* possibly followed by Challenge text */
600 u8 variable[0];
601 } __attribute__ ((packed)) auth;
602 struct {
603 __le16 reason_code;
604 } __attribute__ ((packed)) deauth;
605 struct {
606 __le16 capab_info;
607 __le16 listen_interval;
608 /* followed by SSID and Supported rates */
609 u8 variable[0];
610 } __attribute__ ((packed)) assoc_req;
611 struct {
612 __le16 capab_info;
613 __le16 status_code;
614 __le16 aid;
615 /* followed by Supported rates */
616 u8 variable[0];
617 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
618 struct {
619 __le16 capab_info;
620 __le16 listen_interval;
621 u8 current_ap[6];
622 /* followed by SSID and Supported rates */
623 u8 variable[0];
624 } __attribute__ ((packed)) reassoc_req;
625 struct {
626 __le16 reason_code;
627 } __attribute__ ((packed)) disassoc;
628 struct {
629 __le64 timestamp;
630 __le16 beacon_int;
631 __le16 capab_info;
632 /* followed by some of SSID, Supported rates,
633 * FH Params, DS Params, CF Params, IBSS Params, TIM */
634 u8 variable[0];
635 } __attribute__ ((packed)) beacon;
636 struct {
637 /* only variable items: SSID, Supported rates */
638 u8 variable[0];
639 } __attribute__ ((packed)) probe_req;
640 struct {
641 __le64 timestamp;
642 __le16 beacon_int;
643 __le16 capab_info;
644 /* followed by some of SSID, Supported rates,
645 * FH Params, DS Params, CF Params, IBSS Params */
646 u8 variable[0];
647 } __attribute__ ((packed)) probe_resp;
648 struct {
649 u8 category;
650 union {
651 struct {
652 u8 action_code;
653 u8 dialog_token;
654 u8 status_code;
655 u8 variable[0];
656 } __attribute__ ((packed)) wme_action;
657 struct{
658 u8 action_code;
659 u8 element_id;
660 u8 length;
661 struct ieee80211_channel_sw_ie sw_elem;
662 } __attribute__((packed)) chan_switch;
663 struct{
664 u8 action_code;
665 u8 dialog_token;
666 u8 element_id;
667 u8 length;
668 struct ieee80211_msrment_ie msr_elem;
669 } __attribute__((packed)) measurement;
670 struct{
671 u8 action_code;
672 u8 dialog_token;
673 __le16 capab;
674 __le16 timeout;
675 __le16 start_seq_num;
676 } __attribute__((packed)) addba_req;
677 struct{
678 u8 action_code;
679 u8 dialog_token;
680 __le16 status;
681 __le16 capab;
682 __le16 timeout;
683 } __attribute__((packed)) addba_resp;
684 struct{
685 u8 action_code;
686 __le16 params;
687 __le16 reason_code;
688 } __attribute__((packed)) delba;
689 struct{
690 u8 action_code;
691 /* capab_info for open and confirm,
692 * reason for close
693 */
694 __le16 aux;
695 /* Followed in plink_confirm by status
696 * code, AID and supported rates,
697 * and directly by supported rates in
698 * plink_open and plink_close
699 */
700 u8 variable[0];
701 } __attribute__((packed)) plink_action;
702 struct{
703 u8 action_code;
704 u8 variable[0];
705 } __attribute__((packed)) mesh_action;
706 struct {
707 u8 action;
708 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
709 } __attribute__ ((packed)) sa_query;
710 struct {
711 u8 action;
712 u8 smps_control;
713 } __attribute__ ((packed)) ht_smps;
714 } u;
715 } __attribute__ ((packed)) action;
716 } u;
717 } __attribute__ ((packed));
718
719 /* mgmt header + 1 byte category code */
720 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
721
722
723 /* Management MIC information element (IEEE 802.11w) */
724 struct ieee80211_mmie {
725 u8 element_id;
726 u8 length;
727 __le16 key_id;
728 u8 sequence_number[6];
729 u8 mic[8];
730 } __attribute__ ((packed));
731
732 /* Control frames */
733 struct ieee80211_rts {
734 __le16 frame_control;
735 __le16 duration;
736 u8 ra[6];
737 u8 ta[6];
738 } __attribute__ ((packed));
739
740 struct ieee80211_cts {
741 __le16 frame_control;
742 __le16 duration;
743 u8 ra[6];
744 } __attribute__ ((packed));
745
746 struct ieee80211_pspoll {
747 __le16 frame_control;
748 __le16 aid;
749 u8 bssid[6];
750 u8 ta[6];
751 } __attribute__ ((packed));
752
753 /**
754 * struct ieee80211_bar - HT Block Ack Request
755 *
756 * This structure refers to "HT BlockAckReq" as
757 * described in 802.11n draft section 7.2.1.7.1
758 */
759 struct ieee80211_bar {
760 __le16 frame_control;
761 __le16 duration;
762 __u8 ra[6];
763 __u8 ta[6];
764 __le16 control;
765 __le16 start_seq_num;
766 } __attribute__((packed));
767
768 /* 802.11 BAR control masks */
769 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
770 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
771
772
773 #define IEEE80211_HT_MCS_MASK_LEN 10
774
775 /**
776 * struct ieee80211_mcs_info - MCS information
777 * @rx_mask: RX mask
778 * @rx_highest: highest supported RX rate. If set represents
779 * the highest supported RX data rate in units of 1 Mbps.
780 * If this field is 0 this value should not be used to
781 * consider the highest RX data rate supported.
782 * @tx_params: TX parameters
783 */
784 struct ieee80211_mcs_info {
785 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
786 __le16 rx_highest;
787 u8 tx_params;
788 u8 reserved[3];
789 } __attribute__((packed));
790
791 /* 802.11n HT capability MSC set */
792 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
793 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
794 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
795 /* value 0 == 1 stream etc */
796 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
797 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
798 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
799 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
800
801 /*
802 * 802.11n D5.0 20.3.5 / 20.6 says:
803 * - indices 0 to 7 and 32 are single spatial stream
804 * - 8 to 31 are multiple spatial streams using equal modulation
805 * [8..15 for two streams, 16..23 for three and 24..31 for four]
806 * - remainder are multiple spatial streams using unequal modulation
807 */
808 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
809 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
810 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
811
812 /**
813 * struct ieee80211_ht_cap - HT capabilities
814 *
815 * This structure is the "HT capabilities element" as
816 * described in 802.11n D5.0 7.3.2.57
817 */
818 struct ieee80211_ht_cap {
819 __le16 cap_info;
820 u8 ampdu_params_info;
821
822 /* 16 bytes MCS information */
823 struct ieee80211_mcs_info mcs;
824
825 __le16 extended_ht_cap_info;
826 __le32 tx_BF_cap_info;
827 u8 antenna_selection_info;
828 } __attribute__ ((packed));
829
830 /* 802.11n HT capabilities masks (for cap_info) */
831 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
832 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
833 #define IEEE80211_HT_CAP_SM_PS 0x000C
834 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
835 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
836 #define IEEE80211_HT_CAP_SGI_20 0x0020
837 #define IEEE80211_HT_CAP_SGI_40 0x0040
838 #define IEEE80211_HT_CAP_TX_STBC 0x0080
839 #define IEEE80211_HT_CAP_RX_STBC 0x0300
840 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
841 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
842 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
843 #define IEEE80211_HT_CAP_RESERVED 0x2000
844 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
845 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
846
847 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
848 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
849 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
850 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
851
852 /*
853 * Maximum length of AMPDU that the STA can receive.
854 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
855 */
856 enum ieee80211_max_ampdu_length_exp {
857 IEEE80211_HT_MAX_AMPDU_8K = 0,
858 IEEE80211_HT_MAX_AMPDU_16K = 1,
859 IEEE80211_HT_MAX_AMPDU_32K = 2,
860 IEEE80211_HT_MAX_AMPDU_64K = 3
861 };
862
863 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
864
865 /* Minimum MPDU start spacing */
866 enum ieee80211_min_mpdu_spacing {
867 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
868 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
869 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
870 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
871 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
872 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
873 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
874 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
875 };
876
877 /**
878 * struct ieee80211_ht_info - HT information
879 *
880 * This structure is the "HT information element" as
881 * described in 802.11n D5.0 7.3.2.58
882 */
883 struct ieee80211_ht_info {
884 u8 control_chan;
885 u8 ht_param;
886 __le16 operation_mode;
887 __le16 stbc_param;
888 u8 basic_set[16];
889 } __attribute__ ((packed));
890
891 /* for ht_param */
892 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
893 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
894 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
895 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
896 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
897 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
898 #define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
899 #define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
900
901 /* for operation_mode */
902 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
903 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
904 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
905 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
906 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
907 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
908 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
909
910 /* for stbc_param */
911 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
912 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
913 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
914 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
915 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
916 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
917
918
919 /* block-ack parameters */
920 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
921 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
922 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
923 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
924 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
925
926 /*
927 * A-PMDU buffer sizes
928 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
929 */
930 #define IEEE80211_MIN_AMPDU_BUF 0x8
931 #define IEEE80211_MAX_AMPDU_BUF 0x40
932
933
934 /* Spatial Multiplexing Power Save Modes (for capability) */
935 #define WLAN_HT_CAP_SM_PS_STATIC 0
936 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
937 #define WLAN_HT_CAP_SM_PS_INVALID 2
938 #define WLAN_HT_CAP_SM_PS_DISABLED 3
939
940 /* for SM power control field lower two bits */
941 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
942 #define WLAN_HT_SMPS_CONTROL_STATIC 1
943 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
944
945 /* Authentication algorithms */
946 #define WLAN_AUTH_OPEN 0
947 #define WLAN_AUTH_SHARED_KEY 1
948 #define WLAN_AUTH_FT 2
949 #define WLAN_AUTH_LEAP 128
950
951 #define WLAN_AUTH_CHALLENGE_LEN 128
952
953 #define WLAN_CAPABILITY_ESS (1<<0)
954 #define WLAN_CAPABILITY_IBSS (1<<1)
955 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
956 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
957 #define WLAN_CAPABILITY_PRIVACY (1<<4)
958 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
959 #define WLAN_CAPABILITY_PBCC (1<<6)
960 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
961
962 /* 802.11h */
963 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
964 #define WLAN_CAPABILITY_QOS (1<<9)
965 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
966 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
967 /* measurement */
968 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
969 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
970 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
971
972 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
973 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
974 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
975
976
977 /* 802.11g ERP information element */
978 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
979 #define WLAN_ERP_USE_PROTECTION (1<<1)
980 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
981
982 /* WLAN_ERP_BARKER_PREAMBLE values */
983 enum {
984 WLAN_ERP_PREAMBLE_SHORT = 0,
985 WLAN_ERP_PREAMBLE_LONG = 1,
986 };
987
988 /* Status codes */
989 enum ieee80211_statuscode {
990 WLAN_STATUS_SUCCESS = 0,
991 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
992 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
993 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
994 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
995 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
996 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
997 WLAN_STATUS_CHALLENGE_FAIL = 15,
998 WLAN_STATUS_AUTH_TIMEOUT = 16,
999 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1000 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1001 /* 802.11b */
1002 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1003 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1004 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1005 /* 802.11h */
1006 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1007 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1008 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1009 /* 802.11g */
1010 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1011 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1012 /* 802.11w */
1013 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1014 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1015 /* 802.11i */
1016 WLAN_STATUS_INVALID_IE = 40,
1017 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1018 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1019 WLAN_STATUS_INVALID_AKMP = 43,
1020 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1021 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1022 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1023 /* 802.11e */
1024 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1025 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1026 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1027 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1028 WLAN_STATUS_REQUEST_DECLINED = 37,
1029 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1030 WLAN_STATUS_CHANGE_TSPEC = 39,
1031 WLAN_STATUS_WAIT_TS_DELAY = 47,
1032 WLAN_STATUS_NO_DIRECT_LINK = 48,
1033 WLAN_STATUS_STA_NOT_PRESENT = 49,
1034 WLAN_STATUS_STA_NOT_QSTA = 50,
1035 };
1036
1037
1038 /* Reason codes */
1039 enum ieee80211_reasoncode {
1040 WLAN_REASON_UNSPECIFIED = 1,
1041 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1042 WLAN_REASON_DEAUTH_LEAVING = 3,
1043 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1044 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1045 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1046 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1047 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1048 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1049 /* 802.11h */
1050 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1051 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1052 /* 802.11i */
1053 WLAN_REASON_INVALID_IE = 13,
1054 WLAN_REASON_MIC_FAILURE = 14,
1055 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1056 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1057 WLAN_REASON_IE_DIFFERENT = 17,
1058 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1059 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1060 WLAN_REASON_INVALID_AKMP = 20,
1061 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1062 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1063 WLAN_REASON_IEEE8021X_FAILED = 23,
1064 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1065 /* 802.11e */
1066 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1067 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1068 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1069 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1070 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1071 WLAN_REASON_QSTA_NOT_USE = 37,
1072 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1073 WLAN_REASON_QSTA_TIMEOUT = 39,
1074 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1075 };
1076
1077
1078 /* Information Element IDs */
1079 enum ieee80211_eid {
1080 WLAN_EID_SSID = 0,
1081 WLAN_EID_SUPP_RATES = 1,
1082 WLAN_EID_FH_PARAMS = 2,
1083 WLAN_EID_DS_PARAMS = 3,
1084 WLAN_EID_CF_PARAMS = 4,
1085 WLAN_EID_TIM = 5,
1086 WLAN_EID_IBSS_PARAMS = 6,
1087 WLAN_EID_CHALLENGE = 16,
1088
1089 WLAN_EID_COUNTRY = 7,
1090 WLAN_EID_HP_PARAMS = 8,
1091 WLAN_EID_HP_TABLE = 9,
1092 WLAN_EID_REQUEST = 10,
1093
1094 WLAN_EID_QBSS_LOAD = 11,
1095 WLAN_EID_EDCA_PARAM_SET = 12,
1096 WLAN_EID_TSPEC = 13,
1097 WLAN_EID_TCLAS = 14,
1098 WLAN_EID_SCHEDULE = 15,
1099 WLAN_EID_TS_DELAY = 43,
1100 WLAN_EID_TCLAS_PROCESSING = 44,
1101 WLAN_EID_QOS_CAPA = 46,
1102 /* 802.11s
1103 *
1104 * All mesh EID numbers are pending IEEE 802.11 ANA approval.
1105 * The numbers have been incremented from those suggested in
1106 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
1107 * EXT_SUPP_RATES.
1108 */
1109 WLAN_EID_MESH_CONFIG = 51,
1110 WLAN_EID_MESH_ID = 52,
1111 WLAN_EID_PEER_LINK = 55,
1112 WLAN_EID_PREQ = 68,
1113 WLAN_EID_PREP = 69,
1114 WLAN_EID_PERR = 70,
1115 WLAN_EID_RANN = 49, /* compatible with FreeBSD */
1116
1117 WLAN_EID_PWR_CONSTRAINT = 32,
1118 WLAN_EID_PWR_CAPABILITY = 33,
1119 WLAN_EID_TPC_REQUEST = 34,
1120 WLAN_EID_TPC_REPORT = 35,
1121 WLAN_EID_SUPPORTED_CHANNELS = 36,
1122 WLAN_EID_CHANNEL_SWITCH = 37,
1123 WLAN_EID_MEASURE_REQUEST = 38,
1124 WLAN_EID_MEASURE_REPORT = 39,
1125 WLAN_EID_QUIET = 40,
1126 WLAN_EID_IBSS_DFS = 41,
1127
1128 WLAN_EID_ERP_INFO = 42,
1129 WLAN_EID_EXT_SUPP_RATES = 50,
1130
1131 WLAN_EID_HT_CAPABILITY = 45,
1132 WLAN_EID_HT_INFORMATION = 61,
1133
1134 WLAN_EID_RSN = 48,
1135 WLAN_EID_MMIE = 76,
1136 WLAN_EID_WPA = 221,
1137 WLAN_EID_GENERIC = 221,
1138 WLAN_EID_VENDOR_SPECIFIC = 221,
1139 WLAN_EID_QOS_PARAMETER = 222,
1140
1141 WLAN_EID_AP_CHAN_REPORT = 51,
1142 WLAN_EID_NEIGHBOR_REPORT = 52,
1143 WLAN_EID_RCPI = 53,
1144 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1145 WLAN_EID_ANTENNA_INFO = 64,
1146 WLAN_EID_RSNI = 65,
1147 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1148 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1149 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1150 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1151 WLAN_EID_MULTIPLE_BSSID = 71,
1152
1153 WLAN_EID_MOBILITY_DOMAIN = 54,
1154 WLAN_EID_FAST_BSS_TRANSITION = 55,
1155 WLAN_EID_TIMEOUT_INTERVAL = 56,
1156 WLAN_EID_RIC_DATA = 57,
1157 WLAN_EID_RIC_DESCRIPTOR = 75,
1158
1159 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1160 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1161 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1162 };
1163
1164 /* Action category code */
1165 enum ieee80211_category {
1166 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1167 WLAN_CATEGORY_QOS = 1,
1168 WLAN_CATEGORY_DLS = 2,
1169 WLAN_CATEGORY_BACK = 3,
1170 WLAN_CATEGORY_PUBLIC = 4,
1171 WLAN_CATEGORY_HT = 7,
1172 WLAN_CATEGORY_SA_QUERY = 8,
1173 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1174 WLAN_CATEGORY_WMM = 17,
1175 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1176 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1177 };
1178
1179 /* SPECTRUM_MGMT action code */
1180 enum ieee80211_spectrum_mgmt_actioncode {
1181 WLAN_ACTION_SPCT_MSR_REQ = 0,
1182 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1183 WLAN_ACTION_SPCT_TPC_REQ = 2,
1184 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1185 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1186 };
1187
1188 /* HT action codes */
1189 enum ieee80211_ht_actioncode {
1190 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1191 WLAN_HT_ACTION_SMPS = 1,
1192 WLAN_HT_ACTION_PSMP = 2,
1193 WLAN_HT_ACTION_PCO_PHASE = 3,
1194 WLAN_HT_ACTION_CSI = 4,
1195 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1196 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1197 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1198 };
1199
1200 /* Security key length */
1201 enum ieee80211_key_len {
1202 WLAN_KEY_LEN_WEP40 = 5,
1203 WLAN_KEY_LEN_WEP104 = 13,
1204 WLAN_KEY_LEN_CCMP = 16,
1205 WLAN_KEY_LEN_TKIP = 32,
1206 WLAN_KEY_LEN_AES_CMAC = 16,
1207 };
1208
1209 /*
1210 * IEEE 802.11-2007 7.3.2.9 Country information element
1211 *
1212 * Minimum length is 8 octets, ie len must be evenly
1213 * divisible by 2
1214 */
1215
1216 /* Although the spec says 8 I'm seeing 6 in practice */
1217 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
1218
1219 /*
1220 * For regulatory extension stuff see IEEE 802.11-2007
1221 * Annex I (page 1141) and Annex J (page 1147). Also
1222 * review 7.3.2.9.
1223 *
1224 * When dot11RegulatoryClassesRequired is true and the
1225 * first_channel/reg_extension_id is >= 201 then the IE
1226 * compromises of the 'ext' struct represented below:
1227 *
1228 * - Regulatory extension ID - when generating IE this just needs
1229 * to be monotonically increasing for each triplet passed in
1230 * the IE
1231 * - Regulatory class - index into set of rules
1232 * - Coverage class - index into air propagation time (Table 7-27),
1233 * in microseconds, you can compute the air propagation time from
1234 * the index by multiplying by 3, so index 10 yields a propagation
1235 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1236 * yet. A value of 0 inicates air propagation of <= 1 us.
1237 *
1238 * See also Table I.2 for Emission limit sets and table
1239 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1240 * a reg_class to an emission limit set and behavior limit set.
1241 */
1242 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1243
1244 /*
1245 * Channels numbers in the IE must be monotonically increasing
1246 * if dot11RegulatoryClassesRequired is not true.
1247 *
1248 * If dot11RegulatoryClassesRequired is true consecutive
1249 * subband triplets following a regulatory triplet shall
1250 * have monotonically increasing first_channel number fields.
1251 *
1252 * Channel numbers shall not overlap.
1253 *
1254 * Note that max_power is signed.
1255 */
1256 struct ieee80211_country_ie_triplet {
1257 union {
1258 struct {
1259 u8 first_channel;
1260 u8 num_channels;
1261 s8 max_power;
1262 } __attribute__ ((packed)) chans;
1263 struct {
1264 u8 reg_extension_id;
1265 u8 reg_class;
1266 u8 coverage_class;
1267 } __attribute__ ((packed)) ext;
1268 };
1269 } __attribute__ ((packed));
1270
1271 enum ieee80211_timeout_interval_type {
1272 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1273 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1274 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1275 };
1276
1277 /* BACK action code */
1278 enum ieee80211_back_actioncode {
1279 WLAN_ACTION_ADDBA_REQ = 0,
1280 WLAN_ACTION_ADDBA_RESP = 1,
1281 WLAN_ACTION_DELBA = 2,
1282 };
1283
1284 /* BACK (block-ack) parties */
1285 enum ieee80211_back_parties {
1286 WLAN_BACK_RECIPIENT = 0,
1287 WLAN_BACK_INITIATOR = 1,
1288 WLAN_BACK_TIMER = 2,
1289 };
1290
1291 /* SA Query action */
1292 enum ieee80211_sa_query_action {
1293 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1294 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1295 };
1296
1297
1298 /* A-MSDU 802.11n */
1299 #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1300
1301 /* cipher suite selectors */
1302 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1303 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1304 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1305 /* reserved: 0x000FAC03 */
1306 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1307 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
1308 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
1309
1310 /* AKM suite selectors */
1311 #define WLAN_AKM_SUITE_8021X 0x000FAC01
1312 #define WLAN_AKM_SUITE_PSK 0x000FAC02
1313
1314 #define WLAN_MAX_KEY_LEN 32
1315
1316 #define WLAN_PMKID_LEN 16
1317
1318 /**
1319 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1320 * @hdr: the frame
1321 *
1322 * The qos ctrl bytes come after the frame_control, duration, seq_num
1323 * and 3 or 4 addresses of length ETH_ALEN.
1324 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1325 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1326 */
1327 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1328 {
1329 if (ieee80211_has_a4(hdr->frame_control))
1330 return (u8 *)hdr + 30;
1331 else
1332 return (u8 *)hdr + 24;
1333 }
1334
1335 /**
1336 * ieee80211_get_SA - get pointer to SA
1337 * @hdr: the frame
1338 *
1339 * Given an 802.11 frame, this function returns the offset
1340 * to the source address (SA). It does not verify that the
1341 * header is long enough to contain the address, and the
1342 * header must be long enough to contain the frame control
1343 * field.
1344 */
1345 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1346 {
1347 if (ieee80211_has_a4(hdr->frame_control))
1348 return hdr->addr4;
1349 if (ieee80211_has_fromds(hdr->frame_control))
1350 return hdr->addr3;
1351 return hdr->addr2;
1352 }
1353
1354 /**
1355 * ieee80211_get_DA - get pointer to DA
1356 * @hdr: the frame
1357 *
1358 * Given an 802.11 frame, this function returns the offset
1359 * to the destination address (DA). It does not verify that
1360 * the header is long enough to contain the address, and the
1361 * header must be long enough to contain the frame control
1362 * field.
1363 */
1364 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1365 {
1366 if (ieee80211_has_tods(hdr->frame_control))
1367 return hdr->addr3;
1368 else
1369 return hdr->addr1;
1370 }
1371
1372 /**
1373 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1374 * @hdr: the frame (buffer must include at least the first octet of payload)
1375 */
1376 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1377 {
1378 if (ieee80211_is_disassoc(hdr->frame_control) ||
1379 ieee80211_is_deauth(hdr->frame_control))
1380 return true;
1381
1382 if (ieee80211_is_action(hdr->frame_control)) {
1383 u8 *category;
1384
1385 /*
1386 * Action frames, excluding Public Action frames, are Robust
1387 * Management Frames. However, if we are looking at a Protected
1388 * frame, skip the check since the data may be encrypted and
1389 * the frame has already been found to be a Robust Management
1390 * Frame (by the other end).
1391 */
1392 if (ieee80211_has_protected(hdr->frame_control))
1393 return true;
1394 category = ((u8 *) hdr) + 24;
1395 return *category != WLAN_CATEGORY_PUBLIC &&
1396 *category != WLAN_CATEGORY_HT &&
1397 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
1398 }
1399
1400 return false;
1401 }
1402
1403 /**
1404 * ieee80211_fhss_chan_to_freq - get channel frequency
1405 * @channel: the FHSS channel
1406 *
1407 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1408 * Ref IEEE 802.11-2007 section 14.6
1409 */
1410 static inline int ieee80211_fhss_chan_to_freq(int channel)
1411 {
1412 if ((channel > 1) && (channel < 96))
1413 return channel + 2400;
1414 else
1415 return -1;
1416 }
1417
1418 /**
1419 * ieee80211_freq_to_fhss_chan - get channel
1420 * @freq: the channels frequency
1421 *
1422 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1423 * Ref IEEE 802.11-2007 section 14.6
1424 */
1425 static inline int ieee80211_freq_to_fhss_chan(int freq)
1426 {
1427 if ((freq > 2401) && (freq < 2496))
1428 return freq - 2400;
1429 else
1430 return -1;
1431 }
1432
1433 /**
1434 * ieee80211_dsss_chan_to_freq - get channel center frequency
1435 * @channel: the DSSS channel
1436 *
1437 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1438 * Ref IEEE 802.11-2007 section 15.6
1439 */
1440 static inline int ieee80211_dsss_chan_to_freq(int channel)
1441 {
1442 if ((channel > 0) && (channel < 14))
1443 return 2407 + (channel * 5);
1444 else if (channel == 14)
1445 return 2484;
1446 else
1447 return -1;
1448 }
1449
1450 /**
1451 * ieee80211_freq_to_dsss_chan - get channel
1452 * @freq: the frequency
1453 *
1454 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1455 * Ref IEEE 802.11-2007 section 15.6
1456 *
1457 * This routine selects the channel with the closest center frequency.
1458 */
1459 static inline int ieee80211_freq_to_dsss_chan(int freq)
1460 {
1461 if ((freq >= 2410) && (freq < 2475))
1462 return (freq - 2405) / 5;
1463 else if ((freq >= 2482) && (freq < 2487))
1464 return 14;
1465 else
1466 return -1;
1467 }
1468
1469 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1470 * Ref IEEE 802.11-2007 section 18.4.6.2
1471 *
1472 * The channels and frequencies are the same as those defined for DSSS
1473 */
1474 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1475 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1476
1477 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1478 * Ref IEEE 802.11-2007 section 19.4.2
1479 */
1480 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1481 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1482
1483 /**
1484 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1485 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1486 * @channel: the OFDM channel
1487 *
1488 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1489 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1490 */
1491 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1492 {
1493 if ((channel > 0) && (channel <= 200) &&
1494 (s_freq >= 4000))
1495 return s_freq + (channel * 5);
1496 else
1497 return -1;
1498 }
1499
1500 /**
1501 * ieee80211_freq_to_ofdm_channel - get channel
1502 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1503 * @freq: the frequency
1504 *
1505 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1506 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1507 *
1508 * This routine selects the channel with the closest center frequency.
1509 */
1510 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1511 {
1512 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1513 (s_freq >= 4000))
1514 return (freq + 2 - s_freq) / 5;
1515 else
1516 return -1;
1517 }
1518
1519 /**
1520 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1521 * @tu: the TUs
1522 */
1523 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1524 {
1525 return 1024 * tu;
1526 }
1527
1528 /**
1529 * ieee80211_check_tim - check if AID bit is set in TIM
1530 * @tim: the TIM IE
1531 * @tim_len: length of the TIM IE
1532 * @aid: the AID to look for
1533 */
1534 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1535 u8 tim_len, u16 aid)
1536 {
1537 u8 mask;
1538 u8 index, indexn1, indexn2;
1539
1540 if (unlikely(!tim || tim_len < sizeof(*tim)))
1541 return false;
1542
1543 aid &= 0x3fff;
1544 index = aid / 8;
1545 mask = 1 << (aid & 7);
1546
1547 indexn1 = tim->bitmap_ctrl & 0xfe;
1548 indexn2 = tim_len + indexn1 - 4;
1549
1550 if (index < indexn1 || index > indexn2)
1551 return false;
1552
1553 index -= indexn1;
1554
1555 return !!(tim->virtual_map[index] & mask);
1556 }
1557
1558 #endif /* LINUX_IEEE80211_H */
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