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[mirror_ubuntu-zesty-kernel.git] / include / linux / ieee80211.h
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 /* 1d tag mask */
121 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
122 /* TID mask */
123 #define IEEE80211_QOS_CTL_TID_MASK 0x000f
124 /* EOSP */
125 #define IEEE80211_QOS_CTL_EOSP 0x0010
126 /* ACK policy */
127 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000
128 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
129 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040
130 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060
131 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
132 /* A-MSDU 802.11n */
133 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
134 /* Mesh Control 802.11s */
135 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
136
137 /* U-APSD queue for WMM IEs sent by AP */
138 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
139 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
140
141 /* U-APSD queues for WMM IEs sent by STA */
142 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
143 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
144 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
145 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
146 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
147
148 /* U-APSD max SP length for WMM IEs sent by STA */
149 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
150 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
151 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
152 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
153 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
154 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
155
156 #define IEEE80211_HT_CTL_LEN 4
157
158 struct ieee80211_hdr {
159 __le16 frame_control;
160 __le16 duration_id;
161 u8 addr1[6];
162 u8 addr2[6];
163 u8 addr3[6];
164 __le16 seq_ctrl;
165 u8 addr4[6];
166 } __attribute__ ((packed));
167
168 struct ieee80211_hdr_3addr {
169 __le16 frame_control;
170 __le16 duration_id;
171 u8 addr1[6];
172 u8 addr2[6];
173 u8 addr3[6];
174 __le16 seq_ctrl;
175 } __attribute__ ((packed));
176
177 struct ieee80211_qos_hdr {
178 __le16 frame_control;
179 __le16 duration_id;
180 u8 addr1[6];
181 u8 addr2[6];
182 u8 addr3[6];
183 __le16 seq_ctrl;
184 __le16 qos_ctrl;
185 } __attribute__ ((packed));
186
187 /**
188 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
189 * @fc: frame control bytes in little-endian byteorder
190 */
191 static inline int ieee80211_has_tods(__le16 fc)
192 {
193 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
194 }
195
196 /**
197 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
198 * @fc: frame control bytes in little-endian byteorder
199 */
200 static inline int ieee80211_has_fromds(__le16 fc)
201 {
202 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
203 }
204
205 /**
206 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
207 * @fc: frame control bytes in little-endian byteorder
208 */
209 static inline int ieee80211_has_a4(__le16 fc)
210 {
211 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
212 return (fc & tmp) == tmp;
213 }
214
215 /**
216 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
217 * @fc: frame control bytes in little-endian byteorder
218 */
219 static inline int ieee80211_has_morefrags(__le16 fc)
220 {
221 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
222 }
223
224 /**
225 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
226 * @fc: frame control bytes in little-endian byteorder
227 */
228 static inline int ieee80211_has_retry(__le16 fc)
229 {
230 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
231 }
232
233 /**
234 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
235 * @fc: frame control bytes in little-endian byteorder
236 */
237 static inline int ieee80211_has_pm(__le16 fc)
238 {
239 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
240 }
241
242 /**
243 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
244 * @fc: frame control bytes in little-endian byteorder
245 */
246 static inline int ieee80211_has_moredata(__le16 fc)
247 {
248 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
249 }
250
251 /**
252 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
253 * @fc: frame control bytes in little-endian byteorder
254 */
255 static inline int ieee80211_has_protected(__le16 fc)
256 {
257 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
258 }
259
260 /**
261 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
262 * @fc: frame control bytes in little-endian byteorder
263 */
264 static inline int ieee80211_has_order(__le16 fc)
265 {
266 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
267 }
268
269 /**
270 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
271 * @fc: frame control bytes in little-endian byteorder
272 */
273 static inline int ieee80211_is_mgmt(__le16 fc)
274 {
275 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
276 cpu_to_le16(IEEE80211_FTYPE_MGMT);
277 }
278
279 /**
280 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
281 * @fc: frame control bytes in little-endian byteorder
282 */
283 static inline int ieee80211_is_ctl(__le16 fc)
284 {
285 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
286 cpu_to_le16(IEEE80211_FTYPE_CTL);
287 }
288
289 /**
290 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
291 * @fc: frame control bytes in little-endian byteorder
292 */
293 static inline int ieee80211_is_data(__le16 fc)
294 {
295 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
296 cpu_to_le16(IEEE80211_FTYPE_DATA);
297 }
298
299 /**
300 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
301 * @fc: frame control bytes in little-endian byteorder
302 */
303 static inline int ieee80211_is_data_qos(__le16 fc)
304 {
305 /*
306 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
307 * to check the one bit
308 */
309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
310 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
311 }
312
313 /**
314 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
315 * @fc: frame control bytes in little-endian byteorder
316 */
317 static inline int ieee80211_is_data_present(__le16 fc)
318 {
319 /*
320 * mask with 0x40 and test that that bit is clear to only return true
321 * for the data-containing substypes.
322 */
323 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
324 cpu_to_le16(IEEE80211_FTYPE_DATA);
325 }
326
327 /**
328 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
329 * @fc: frame control bytes in little-endian byteorder
330 */
331 static inline int ieee80211_is_assoc_req(__le16 fc)
332 {
333 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
334 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
335 }
336
337 /**
338 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
339 * @fc: frame control bytes in little-endian byteorder
340 */
341 static inline int ieee80211_is_assoc_resp(__le16 fc)
342 {
343 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
344 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
345 }
346
347 /**
348 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
349 * @fc: frame control bytes in little-endian byteorder
350 */
351 static inline int ieee80211_is_reassoc_req(__le16 fc)
352 {
353 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
354 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
355 }
356
357 /**
358 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
359 * @fc: frame control bytes in little-endian byteorder
360 */
361 static inline int ieee80211_is_reassoc_resp(__le16 fc)
362 {
363 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
364 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
365 }
366
367 /**
368 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
369 * @fc: frame control bytes in little-endian byteorder
370 */
371 static inline int ieee80211_is_probe_req(__le16 fc)
372 {
373 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
374 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
375 }
376
377 /**
378 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
379 * @fc: frame control bytes in little-endian byteorder
380 */
381 static inline int ieee80211_is_probe_resp(__le16 fc)
382 {
383 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
384 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
385 }
386
387 /**
388 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
389 * @fc: frame control bytes in little-endian byteorder
390 */
391 static inline int ieee80211_is_beacon(__le16 fc)
392 {
393 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
394 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
395 }
396
397 /**
398 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
399 * @fc: frame control bytes in little-endian byteorder
400 */
401 static inline int ieee80211_is_atim(__le16 fc)
402 {
403 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
404 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
405 }
406
407 /**
408 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
409 * @fc: frame control bytes in little-endian byteorder
410 */
411 static inline int ieee80211_is_disassoc(__le16 fc)
412 {
413 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
414 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
415 }
416
417 /**
418 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
419 * @fc: frame control bytes in little-endian byteorder
420 */
421 static inline int ieee80211_is_auth(__le16 fc)
422 {
423 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
424 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
425 }
426
427 /**
428 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
429 * @fc: frame control bytes in little-endian byteorder
430 */
431 static inline int ieee80211_is_deauth(__le16 fc)
432 {
433 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
434 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
435 }
436
437 /**
438 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
439 * @fc: frame control bytes in little-endian byteorder
440 */
441 static inline int ieee80211_is_action(__le16 fc)
442 {
443 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
444 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
445 }
446
447 /**
448 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
449 * @fc: frame control bytes in little-endian byteorder
450 */
451 static inline int ieee80211_is_back_req(__le16 fc)
452 {
453 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
454 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
455 }
456
457 /**
458 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
459 * @fc: frame control bytes in little-endian byteorder
460 */
461 static inline int ieee80211_is_back(__le16 fc)
462 {
463 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
464 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
465 }
466
467 /**
468 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
469 * @fc: frame control bytes in little-endian byteorder
470 */
471 static inline int ieee80211_is_pspoll(__le16 fc)
472 {
473 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
474 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
475 }
476
477 /**
478 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
479 * @fc: frame control bytes in little-endian byteorder
480 */
481 static inline int ieee80211_is_rts(__le16 fc)
482 {
483 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
484 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
485 }
486
487 /**
488 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
489 * @fc: frame control bytes in little-endian byteorder
490 */
491 static inline int ieee80211_is_cts(__le16 fc)
492 {
493 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
494 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
495 }
496
497 /**
498 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
499 * @fc: frame control bytes in little-endian byteorder
500 */
501 static inline int ieee80211_is_ack(__le16 fc)
502 {
503 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
504 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
505 }
506
507 /**
508 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
509 * @fc: frame control bytes in little-endian byteorder
510 */
511 static inline int ieee80211_is_cfend(__le16 fc)
512 {
513 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
514 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
515 }
516
517 /**
518 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
519 * @fc: frame control bytes in little-endian byteorder
520 */
521 static inline int ieee80211_is_cfendack(__le16 fc)
522 {
523 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
524 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
525 }
526
527 /**
528 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
529 * @fc: frame control bytes in little-endian byteorder
530 */
531 static inline int ieee80211_is_nullfunc(__le16 fc)
532 {
533 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
534 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
535 }
536
537 /**
538 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
539 * @fc: frame control bytes in little-endian byteorder
540 */
541 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
542 {
543 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
544 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
545 }
546
547 /**
548 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
549 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
550 */
551 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
552 {
553 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
554 }
555
556 struct ieee80211s_hdr {
557 u8 flags;
558 u8 ttl;
559 __le32 seqnum;
560 u8 eaddr1[6];
561 u8 eaddr2[6];
562 } __attribute__ ((packed));
563
564 /* Mesh flags */
565 #define MESH_FLAGS_AE_A4 0x1
566 #define MESH_FLAGS_AE_A5_A6 0x2
567 #define MESH_FLAGS_AE 0x3
568 #define MESH_FLAGS_PS_DEEP 0x4
569
570 /**
571 * struct ieee80211_quiet_ie
572 *
573 * This structure refers to "Quiet information element"
574 */
575 struct ieee80211_quiet_ie {
576 u8 count;
577 u8 period;
578 __le16 duration;
579 __le16 offset;
580 } __attribute__ ((packed));
581
582 /**
583 * struct ieee80211_msrment_ie
584 *
585 * This structure refers to "Measurement Request/Report information element"
586 */
587 struct ieee80211_msrment_ie {
588 u8 token;
589 u8 mode;
590 u8 type;
591 u8 request[0];
592 } __attribute__ ((packed));
593
594 /**
595 * struct ieee80211_channel_sw_ie
596 *
597 * This structure refers to "Channel Switch Announcement information element"
598 */
599 struct ieee80211_channel_sw_ie {
600 u8 mode;
601 u8 new_ch_num;
602 u8 count;
603 } __attribute__ ((packed));
604
605 /**
606 * struct ieee80211_tim
607 *
608 * This structure refers to "Traffic Indication Map information element"
609 */
610 struct ieee80211_tim_ie {
611 u8 dtim_count;
612 u8 dtim_period;
613 u8 bitmap_ctrl;
614 /* variable size: 1 - 251 bytes */
615 u8 virtual_map[1];
616 } __attribute__ ((packed));
617
618 /**
619 * struct ieee80211_meshconf_ie
620 *
621 * This structure refers to "Mesh Configuration information element"
622 */
623 struct ieee80211_meshconf_ie {
624 u8 meshconf_psel;
625 u8 meshconf_pmetric;
626 u8 meshconf_congest;
627 u8 meshconf_synch;
628 u8 meshconf_auth;
629 u8 meshconf_form;
630 u8 meshconf_cap;
631 } __attribute__ ((packed));
632
633 /**
634 * struct ieee80211_rann_ie
635 *
636 * This structure refers to "Root Announcement information element"
637 */
638 struct ieee80211_rann_ie {
639 u8 rann_flags;
640 u8 rann_hopcount;
641 u8 rann_ttl;
642 u8 rann_addr[6];
643 __le32 rann_seq;
644 __le32 rann_interval;
645 __le32 rann_metric;
646 } __attribute__ ((packed));
647
648 enum ieee80211_rann_flags {
649 RANN_FLAG_IS_GATE = 1 << 0,
650 };
651
652 #define WLAN_SA_QUERY_TR_ID_LEN 2
653
654 struct ieee80211_mgmt {
655 __le16 frame_control;
656 __le16 duration;
657 u8 da[6];
658 u8 sa[6];
659 u8 bssid[6];
660 __le16 seq_ctrl;
661 union {
662 struct {
663 __le16 auth_alg;
664 __le16 auth_transaction;
665 __le16 status_code;
666 /* possibly followed by Challenge text */
667 u8 variable[0];
668 } __attribute__ ((packed)) auth;
669 struct {
670 __le16 reason_code;
671 } __attribute__ ((packed)) deauth;
672 struct {
673 __le16 capab_info;
674 __le16 listen_interval;
675 /* followed by SSID and Supported rates */
676 u8 variable[0];
677 } __attribute__ ((packed)) assoc_req;
678 struct {
679 __le16 capab_info;
680 __le16 status_code;
681 __le16 aid;
682 /* followed by Supported rates */
683 u8 variable[0];
684 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
685 struct {
686 __le16 capab_info;
687 __le16 listen_interval;
688 u8 current_ap[6];
689 /* followed by SSID and Supported rates */
690 u8 variable[0];
691 } __attribute__ ((packed)) reassoc_req;
692 struct {
693 __le16 reason_code;
694 } __attribute__ ((packed)) disassoc;
695 struct {
696 __le64 timestamp;
697 __le16 beacon_int;
698 __le16 capab_info;
699 /* followed by some of SSID, Supported rates,
700 * FH Params, DS Params, CF Params, IBSS Params, TIM */
701 u8 variable[0];
702 } __attribute__ ((packed)) beacon;
703 struct {
704 /* only variable items: SSID, Supported rates */
705 u8 variable[0];
706 } __attribute__ ((packed)) probe_req;
707 struct {
708 __le64 timestamp;
709 __le16 beacon_int;
710 __le16 capab_info;
711 /* followed by some of SSID, Supported rates,
712 * FH Params, DS Params, CF Params, IBSS Params */
713 u8 variable[0];
714 } __attribute__ ((packed)) probe_resp;
715 struct {
716 u8 category;
717 union {
718 struct {
719 u8 action_code;
720 u8 dialog_token;
721 u8 status_code;
722 u8 variable[0];
723 } __attribute__ ((packed)) wme_action;
724 struct{
725 u8 action_code;
726 u8 element_id;
727 u8 length;
728 struct ieee80211_channel_sw_ie sw_elem;
729 } __attribute__((packed)) chan_switch;
730 struct{
731 u8 action_code;
732 u8 dialog_token;
733 u8 element_id;
734 u8 length;
735 struct ieee80211_msrment_ie msr_elem;
736 } __attribute__((packed)) measurement;
737 struct{
738 u8 action_code;
739 u8 dialog_token;
740 __le16 capab;
741 __le16 timeout;
742 __le16 start_seq_num;
743 } __attribute__((packed)) addba_req;
744 struct{
745 u8 action_code;
746 u8 dialog_token;
747 __le16 status;
748 __le16 capab;
749 __le16 timeout;
750 } __attribute__((packed)) addba_resp;
751 struct{
752 u8 action_code;
753 __le16 params;
754 __le16 reason_code;
755 } __attribute__((packed)) delba;
756 struct {
757 u8 action_code;
758 u8 variable[0];
759 } __attribute__((packed)) self_prot;
760 struct{
761 u8 action_code;
762 u8 variable[0];
763 } __attribute__((packed)) mesh_action;
764 struct {
765 u8 action;
766 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
767 } __attribute__ ((packed)) sa_query;
768 struct {
769 u8 action;
770 u8 smps_control;
771 } __attribute__ ((packed)) ht_smps;
772 struct {
773 u8 action_code;
774 u8 dialog_token;
775 __le16 capability;
776 u8 variable[0];
777 } __packed tdls_discover_resp;
778 } u;
779 } __attribute__ ((packed)) action;
780 } u;
781 } __attribute__ ((packed));
782
783 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
784 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
785
786 /* mgmt header + 1 byte category code */
787 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
788
789
790 /* Management MIC information element (IEEE 802.11w) */
791 struct ieee80211_mmie {
792 u8 element_id;
793 u8 length;
794 __le16 key_id;
795 u8 sequence_number[6];
796 u8 mic[8];
797 } __attribute__ ((packed));
798
799 struct ieee80211_vendor_ie {
800 u8 element_id;
801 u8 len;
802 u8 oui[3];
803 u8 oui_type;
804 } __packed;
805
806 /* Control frames */
807 struct ieee80211_rts {
808 __le16 frame_control;
809 __le16 duration;
810 u8 ra[6];
811 u8 ta[6];
812 } __attribute__ ((packed));
813
814 struct ieee80211_cts {
815 __le16 frame_control;
816 __le16 duration;
817 u8 ra[6];
818 } __attribute__ ((packed));
819
820 struct ieee80211_pspoll {
821 __le16 frame_control;
822 __le16 aid;
823 u8 bssid[6];
824 u8 ta[6];
825 } __attribute__ ((packed));
826
827 /* TDLS */
828
829 /* Link-id information element */
830 struct ieee80211_tdls_lnkie {
831 u8 ie_type; /* Link Identifier IE */
832 u8 ie_len;
833 u8 bssid[6];
834 u8 init_sta[6];
835 u8 resp_sta[6];
836 } __packed;
837
838 struct ieee80211_tdls_data {
839 u8 da[6];
840 u8 sa[6];
841 __be16 ether_type;
842 u8 payload_type;
843 u8 category;
844 u8 action_code;
845 union {
846 struct {
847 u8 dialog_token;
848 __le16 capability;
849 u8 variable[0];
850 } __packed setup_req;
851 struct {
852 __le16 status_code;
853 u8 dialog_token;
854 __le16 capability;
855 u8 variable[0];
856 } __packed setup_resp;
857 struct {
858 __le16 status_code;
859 u8 dialog_token;
860 u8 variable[0];
861 } __packed setup_cfm;
862 struct {
863 __le16 reason_code;
864 u8 variable[0];
865 } __packed teardown;
866 struct {
867 u8 dialog_token;
868 u8 variable[0];
869 } __packed discover_req;
870 } u;
871 } __packed;
872
873 /**
874 * struct ieee80211_bar - HT Block Ack Request
875 *
876 * This structure refers to "HT BlockAckReq" as
877 * described in 802.11n draft section 7.2.1.7.1
878 */
879 struct ieee80211_bar {
880 __le16 frame_control;
881 __le16 duration;
882 __u8 ra[6];
883 __u8 ta[6];
884 __le16 control;
885 __le16 start_seq_num;
886 } __attribute__((packed));
887
888 /* 802.11 BAR control masks */
889 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
890 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
891 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
892 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
893 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
894
895 #define IEEE80211_HT_MCS_MASK_LEN 10
896
897 /**
898 * struct ieee80211_mcs_info - MCS information
899 * @rx_mask: RX mask
900 * @rx_highest: highest supported RX rate. If set represents
901 * the highest supported RX data rate in units of 1 Mbps.
902 * If this field is 0 this value should not be used to
903 * consider the highest RX data rate supported.
904 * @tx_params: TX parameters
905 */
906 struct ieee80211_mcs_info {
907 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
908 __le16 rx_highest;
909 u8 tx_params;
910 u8 reserved[3];
911 } __attribute__((packed));
912
913 /* 802.11n HT capability MSC set */
914 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
915 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
916 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
917 /* value 0 == 1 stream etc */
918 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
919 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
920 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
921 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
922
923 /*
924 * 802.11n D5.0 20.3.5 / 20.6 says:
925 * - indices 0 to 7 and 32 are single spatial stream
926 * - 8 to 31 are multiple spatial streams using equal modulation
927 * [8..15 for two streams, 16..23 for three and 24..31 for four]
928 * - remainder are multiple spatial streams using unequal modulation
929 */
930 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
931 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
932 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
933
934 /**
935 * struct ieee80211_ht_cap - HT capabilities
936 *
937 * This structure is the "HT capabilities element" as
938 * described in 802.11n D5.0 7.3.2.57
939 */
940 struct ieee80211_ht_cap {
941 __le16 cap_info;
942 u8 ampdu_params_info;
943
944 /* 16 bytes MCS information */
945 struct ieee80211_mcs_info mcs;
946
947 __le16 extended_ht_cap_info;
948 __le32 tx_BF_cap_info;
949 u8 antenna_selection_info;
950 } __attribute__ ((packed));
951
952 /* 802.11n HT capabilities masks (for cap_info) */
953 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
954 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
955 #define IEEE80211_HT_CAP_SM_PS 0x000C
956 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
957 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
958 #define IEEE80211_HT_CAP_SGI_20 0x0020
959 #define IEEE80211_HT_CAP_SGI_40 0x0040
960 #define IEEE80211_HT_CAP_TX_STBC 0x0080
961 #define IEEE80211_HT_CAP_RX_STBC 0x0300
962 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
963 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
964 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
965 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
966 #define IEEE80211_HT_CAP_RESERVED 0x2000
967 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
968 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
969
970 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
971 #define IEEE80211_HT_EXT_CAP_PCO 0x0001
972 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
973 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
974 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
975 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
976 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
977 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
978
979 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
980 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
981 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
982 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
983
984 /*
985 * Maximum length of AMPDU that the STA can receive.
986 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
987 */
988 enum ieee80211_max_ampdu_length_exp {
989 IEEE80211_HT_MAX_AMPDU_8K = 0,
990 IEEE80211_HT_MAX_AMPDU_16K = 1,
991 IEEE80211_HT_MAX_AMPDU_32K = 2,
992 IEEE80211_HT_MAX_AMPDU_64K = 3
993 };
994
995 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
996
997 /* Minimum MPDU start spacing */
998 enum ieee80211_min_mpdu_spacing {
999 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1000 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1001 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1002 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1003 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1004 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1005 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1006 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1007 };
1008
1009 /**
1010 * struct ieee80211_ht_operation - HT operation IE
1011 *
1012 * This structure is the "HT operation element" as
1013 * described in 802.11n-2009 7.3.2.57
1014 */
1015 struct ieee80211_ht_operation {
1016 u8 primary_chan;
1017 u8 ht_param;
1018 __le16 operation_mode;
1019 __le16 stbc_param;
1020 u8 basic_set[16];
1021 } __attribute__ ((packed));
1022
1023 /* for ht_param */
1024 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1025 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1026 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1027 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1028 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1029 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1030
1031 /* for operation_mode */
1032 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1033 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1034 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1035 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1036 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1037 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1038 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1039
1040 /* for stbc_param */
1041 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1042 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1043 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1044 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1045 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1046 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1047
1048
1049 /* block-ack parameters */
1050 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1051 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1052 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1053 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1054 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1055
1056 /*
1057 * A-PMDU buffer sizes
1058 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1059 */
1060 #define IEEE80211_MIN_AMPDU_BUF 0x8
1061 #define IEEE80211_MAX_AMPDU_BUF 0x40
1062
1063
1064 /* Spatial Multiplexing Power Save Modes (for capability) */
1065 #define WLAN_HT_CAP_SM_PS_STATIC 0
1066 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1067 #define WLAN_HT_CAP_SM_PS_INVALID 2
1068 #define WLAN_HT_CAP_SM_PS_DISABLED 3
1069
1070 /* for SM power control field lower two bits */
1071 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
1072 #define WLAN_HT_SMPS_CONTROL_STATIC 1
1073 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1074
1075 /* Authentication algorithms */
1076 #define WLAN_AUTH_OPEN 0
1077 #define WLAN_AUTH_SHARED_KEY 1
1078 #define WLAN_AUTH_FT 2
1079 #define WLAN_AUTH_SAE 3
1080 #define WLAN_AUTH_LEAP 128
1081
1082 #define WLAN_AUTH_CHALLENGE_LEN 128
1083
1084 #define WLAN_CAPABILITY_ESS (1<<0)
1085 #define WLAN_CAPABILITY_IBSS (1<<1)
1086
1087 /*
1088 * A mesh STA sets the ESS and IBSS capability bits to zero.
1089 * however, this holds true for p2p probe responses (in the p2p_find
1090 * phase) as well.
1091 */
1092 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1093 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1094
1095 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
1096 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1097 #define WLAN_CAPABILITY_PRIVACY (1<<4)
1098 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1099 #define WLAN_CAPABILITY_PBCC (1<<6)
1100 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1101
1102 /* 802.11h */
1103 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1104 #define WLAN_CAPABILITY_QOS (1<<9)
1105 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1106 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
1107 /* measurement */
1108 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1109 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1110 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1111
1112 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1113 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1114 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1115
1116
1117 /* 802.11g ERP information element */
1118 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1119 #define WLAN_ERP_USE_PROTECTION (1<<1)
1120 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1121
1122 /* WLAN_ERP_BARKER_PREAMBLE values */
1123 enum {
1124 WLAN_ERP_PREAMBLE_SHORT = 0,
1125 WLAN_ERP_PREAMBLE_LONG = 1,
1126 };
1127
1128 /* Status codes */
1129 enum ieee80211_statuscode {
1130 WLAN_STATUS_SUCCESS = 0,
1131 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1132 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1133 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1134 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1135 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1136 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1137 WLAN_STATUS_CHALLENGE_FAIL = 15,
1138 WLAN_STATUS_AUTH_TIMEOUT = 16,
1139 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1140 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1141 /* 802.11b */
1142 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1143 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1144 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1145 /* 802.11h */
1146 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1147 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1148 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1149 /* 802.11g */
1150 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1151 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1152 /* 802.11w */
1153 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1154 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1155 /* 802.11i */
1156 WLAN_STATUS_INVALID_IE = 40,
1157 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1158 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1159 WLAN_STATUS_INVALID_AKMP = 43,
1160 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1161 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1162 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1163 /* 802.11e */
1164 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1165 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1166 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1167 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1168 WLAN_STATUS_REQUEST_DECLINED = 37,
1169 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1170 WLAN_STATUS_CHANGE_TSPEC = 39,
1171 WLAN_STATUS_WAIT_TS_DELAY = 47,
1172 WLAN_STATUS_NO_DIRECT_LINK = 48,
1173 WLAN_STATUS_STA_NOT_PRESENT = 49,
1174 WLAN_STATUS_STA_NOT_QSTA = 50,
1175 /* 802.11s */
1176 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1177 WLAN_STATUS_FCG_NOT_SUPP = 78,
1178 WLAN_STATUS_STA_NO_TBTT = 78,
1179 };
1180
1181
1182 /* Reason codes */
1183 enum ieee80211_reasoncode {
1184 WLAN_REASON_UNSPECIFIED = 1,
1185 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1186 WLAN_REASON_DEAUTH_LEAVING = 3,
1187 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1188 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1189 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1190 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1191 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1192 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1193 /* 802.11h */
1194 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1195 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1196 /* 802.11i */
1197 WLAN_REASON_INVALID_IE = 13,
1198 WLAN_REASON_MIC_FAILURE = 14,
1199 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1200 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1201 WLAN_REASON_IE_DIFFERENT = 17,
1202 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1203 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1204 WLAN_REASON_INVALID_AKMP = 20,
1205 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1206 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1207 WLAN_REASON_IEEE8021X_FAILED = 23,
1208 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1209 /* 802.11e */
1210 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1211 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1212 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1213 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1214 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1215 WLAN_REASON_QSTA_NOT_USE = 37,
1216 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1217 WLAN_REASON_QSTA_TIMEOUT = 39,
1218 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1219 /* 802.11s */
1220 WLAN_REASON_MESH_PEER_CANCELED = 52,
1221 WLAN_REASON_MESH_MAX_PEERS = 53,
1222 WLAN_REASON_MESH_CONFIG = 54,
1223 WLAN_REASON_MESH_CLOSE = 55,
1224 WLAN_REASON_MESH_MAX_RETRIES = 56,
1225 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1226 WLAN_REASON_MESH_INVALID_GTK = 58,
1227 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1228 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1229 WLAN_REASON_MESH_PATH_ERROR = 61,
1230 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1231 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1232 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1233 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1234 WLAN_REASON_MESH_CHAN = 66,
1235 };
1236
1237
1238 /* Information Element IDs */
1239 enum ieee80211_eid {
1240 WLAN_EID_SSID = 0,
1241 WLAN_EID_SUPP_RATES = 1,
1242 WLAN_EID_FH_PARAMS = 2,
1243 WLAN_EID_DS_PARAMS = 3,
1244 WLAN_EID_CF_PARAMS = 4,
1245 WLAN_EID_TIM = 5,
1246 WLAN_EID_IBSS_PARAMS = 6,
1247 WLAN_EID_CHALLENGE = 16,
1248
1249 WLAN_EID_COUNTRY = 7,
1250 WLAN_EID_HP_PARAMS = 8,
1251 WLAN_EID_HP_TABLE = 9,
1252 WLAN_EID_REQUEST = 10,
1253
1254 WLAN_EID_QBSS_LOAD = 11,
1255 WLAN_EID_EDCA_PARAM_SET = 12,
1256 WLAN_EID_TSPEC = 13,
1257 WLAN_EID_TCLAS = 14,
1258 WLAN_EID_SCHEDULE = 15,
1259 WLAN_EID_TS_DELAY = 43,
1260 WLAN_EID_TCLAS_PROCESSING = 44,
1261 WLAN_EID_QOS_CAPA = 46,
1262 /* 802.11z */
1263 WLAN_EID_LINK_ID = 101,
1264 /* 802.11s */
1265 WLAN_EID_MESH_CONFIG = 113,
1266 WLAN_EID_MESH_ID = 114,
1267 WLAN_EID_LINK_METRIC_REPORT = 115,
1268 WLAN_EID_CONGESTION_NOTIFICATION = 116,
1269 WLAN_EID_PEER_MGMT = 117,
1270 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1271 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1272 WLAN_EID_BEACON_TIMING = 120,
1273 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1274 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1275 WLAN_EID_MCCAOP_ADVERT = 123,
1276 WLAN_EID_MCCAOP_TEARDOWN = 124,
1277 WLAN_EID_GANN = 125,
1278 WLAN_EID_RANN = 126,
1279 WLAN_EID_PREQ = 130,
1280 WLAN_EID_PREP = 131,
1281 WLAN_EID_PERR = 132,
1282 WLAN_EID_PXU = 137,
1283 WLAN_EID_PXUC = 138,
1284 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1285 WLAN_EID_MIC = 140,
1286
1287 WLAN_EID_PWR_CONSTRAINT = 32,
1288 WLAN_EID_PWR_CAPABILITY = 33,
1289 WLAN_EID_TPC_REQUEST = 34,
1290 WLAN_EID_TPC_REPORT = 35,
1291 WLAN_EID_SUPPORTED_CHANNELS = 36,
1292 WLAN_EID_CHANNEL_SWITCH = 37,
1293 WLAN_EID_MEASURE_REQUEST = 38,
1294 WLAN_EID_MEASURE_REPORT = 39,
1295 WLAN_EID_QUIET = 40,
1296 WLAN_EID_IBSS_DFS = 41,
1297
1298 WLAN_EID_ERP_INFO = 42,
1299 WLAN_EID_EXT_SUPP_RATES = 50,
1300
1301 WLAN_EID_HT_CAPABILITY = 45,
1302 WLAN_EID_HT_OPERATION = 61,
1303
1304 WLAN_EID_RSN = 48,
1305 WLAN_EID_MMIE = 76,
1306 WLAN_EID_WPA = 221,
1307 WLAN_EID_GENERIC = 221,
1308 WLAN_EID_VENDOR_SPECIFIC = 221,
1309 WLAN_EID_QOS_PARAMETER = 222,
1310
1311 WLAN_EID_AP_CHAN_REPORT = 51,
1312 WLAN_EID_NEIGHBOR_REPORT = 52,
1313 WLAN_EID_RCPI = 53,
1314 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1315 WLAN_EID_ANTENNA_INFO = 64,
1316 WLAN_EID_RSNI = 65,
1317 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1318 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1319 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1320 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1321 WLAN_EID_MULTIPLE_BSSID = 71,
1322 WLAN_EID_BSS_COEX_2040 = 72,
1323 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1324 WLAN_EID_EXT_CAPABILITY = 127,
1325
1326 WLAN_EID_MOBILITY_DOMAIN = 54,
1327 WLAN_EID_FAST_BSS_TRANSITION = 55,
1328 WLAN_EID_TIMEOUT_INTERVAL = 56,
1329 WLAN_EID_RIC_DATA = 57,
1330 WLAN_EID_RIC_DESCRIPTOR = 75,
1331
1332 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1333 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1334 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1335 };
1336
1337 /* Action category code */
1338 enum ieee80211_category {
1339 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1340 WLAN_CATEGORY_QOS = 1,
1341 WLAN_CATEGORY_DLS = 2,
1342 WLAN_CATEGORY_BACK = 3,
1343 WLAN_CATEGORY_PUBLIC = 4,
1344 WLAN_CATEGORY_HT = 7,
1345 WLAN_CATEGORY_SA_QUERY = 8,
1346 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1347 WLAN_CATEGORY_TDLS = 12,
1348 WLAN_CATEGORY_MESH_ACTION = 13,
1349 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1350 WLAN_CATEGORY_SELF_PROTECTED = 15,
1351 WLAN_CATEGORY_WMM = 17,
1352 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1353 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1354 };
1355
1356 /* SPECTRUM_MGMT action code */
1357 enum ieee80211_spectrum_mgmt_actioncode {
1358 WLAN_ACTION_SPCT_MSR_REQ = 0,
1359 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1360 WLAN_ACTION_SPCT_TPC_REQ = 2,
1361 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1362 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1363 };
1364
1365 /* HT action codes */
1366 enum ieee80211_ht_actioncode {
1367 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1368 WLAN_HT_ACTION_SMPS = 1,
1369 WLAN_HT_ACTION_PSMP = 2,
1370 WLAN_HT_ACTION_PCO_PHASE = 3,
1371 WLAN_HT_ACTION_CSI = 4,
1372 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1373 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1374 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1375 };
1376
1377 /* Self Protected Action codes */
1378 enum ieee80211_self_protected_actioncode {
1379 WLAN_SP_RESERVED = 0,
1380 WLAN_SP_MESH_PEERING_OPEN = 1,
1381 WLAN_SP_MESH_PEERING_CONFIRM = 2,
1382 WLAN_SP_MESH_PEERING_CLOSE = 3,
1383 WLAN_SP_MGK_INFORM = 4,
1384 WLAN_SP_MGK_ACK = 5,
1385 };
1386
1387 /* Mesh action codes */
1388 enum ieee80211_mesh_actioncode {
1389 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1390 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1391 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1392 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1393 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1394 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1395 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1396 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1397 WLAN_MESH_ACTION_MCCA_TEARDOWN,
1398 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1399 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1400 };
1401
1402 /* Security key length */
1403 enum ieee80211_key_len {
1404 WLAN_KEY_LEN_WEP40 = 5,
1405 WLAN_KEY_LEN_WEP104 = 13,
1406 WLAN_KEY_LEN_CCMP = 16,
1407 WLAN_KEY_LEN_TKIP = 32,
1408 WLAN_KEY_LEN_AES_CMAC = 16,
1409 };
1410
1411 /* Public action codes */
1412 enum ieee80211_pub_actioncode {
1413 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1414 };
1415
1416 /* TDLS action codes */
1417 enum ieee80211_tdls_actioncode {
1418 WLAN_TDLS_SETUP_REQUEST = 0,
1419 WLAN_TDLS_SETUP_RESPONSE = 1,
1420 WLAN_TDLS_SETUP_CONFIRM = 2,
1421 WLAN_TDLS_TEARDOWN = 3,
1422 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1423 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1424 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1425 WLAN_TDLS_PEER_PSM_REQUEST = 7,
1426 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1427 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1428 WLAN_TDLS_DISCOVERY_REQUEST = 10,
1429 };
1430
1431 /*
1432 * TDLS capabililites to be enabled in the 5th byte of the
1433 * @WLAN_EID_EXT_CAPABILITY information element
1434 */
1435 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
1436 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
1437
1438 /* TDLS specific payload type in the LLC/SNAP header */
1439 #define WLAN_TDLS_SNAP_RFTYPE 0x2
1440
1441 /**
1442 * enum - mesh synchronization method identifier
1443 *
1444 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1445 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1446 * that will be specified in a vendor specific information element
1447 */
1448 enum {
1449 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1450 IEEE80211_SYNC_METHOD_VENDOR = 255,
1451 };
1452
1453 /**
1454 * enum - mesh path selection protocol identifier
1455 *
1456 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1457 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1458 * be specified in a vendor specific information element
1459 */
1460 enum {
1461 IEEE80211_PATH_PROTOCOL_HWMP = 1,
1462 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1463 };
1464
1465 /**
1466 * enum - mesh path selection metric identifier
1467 *
1468 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1469 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1470 * specified in a vendor specific information element
1471 */
1472 enum {
1473 IEEE80211_PATH_METRIC_AIRTIME = 1,
1474 IEEE80211_PATH_METRIC_VENDOR = 255,
1475 };
1476
1477
1478 /*
1479 * IEEE 802.11-2007 7.3.2.9 Country information element
1480 *
1481 * Minimum length is 8 octets, ie len must be evenly
1482 * divisible by 2
1483 */
1484
1485 /* Although the spec says 8 I'm seeing 6 in practice */
1486 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
1487
1488 /* The Country String field of the element shall be 3 octets in length */
1489 #define IEEE80211_COUNTRY_STRING_LEN 3
1490
1491 /*
1492 * For regulatory extension stuff see IEEE 802.11-2007
1493 * Annex I (page 1141) and Annex J (page 1147). Also
1494 * review 7.3.2.9.
1495 *
1496 * When dot11RegulatoryClassesRequired is true and the
1497 * first_channel/reg_extension_id is >= 201 then the IE
1498 * compromises of the 'ext' struct represented below:
1499 *
1500 * - Regulatory extension ID - when generating IE this just needs
1501 * to be monotonically increasing for each triplet passed in
1502 * the IE
1503 * - Regulatory class - index into set of rules
1504 * - Coverage class - index into air propagation time (Table 7-27),
1505 * in microseconds, you can compute the air propagation time from
1506 * the index by multiplying by 3, so index 10 yields a propagation
1507 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1508 * yet. A value of 0 inicates air propagation of <= 1 us.
1509 *
1510 * See also Table I.2 for Emission limit sets and table
1511 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1512 * a reg_class to an emission limit set and behavior limit set.
1513 */
1514 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1515
1516 /*
1517 * Channels numbers in the IE must be monotonically increasing
1518 * if dot11RegulatoryClassesRequired is not true.
1519 *
1520 * If dot11RegulatoryClassesRequired is true consecutive
1521 * subband triplets following a regulatory triplet shall
1522 * have monotonically increasing first_channel number fields.
1523 *
1524 * Channel numbers shall not overlap.
1525 *
1526 * Note that max_power is signed.
1527 */
1528 struct ieee80211_country_ie_triplet {
1529 union {
1530 struct {
1531 u8 first_channel;
1532 u8 num_channels;
1533 s8 max_power;
1534 } __attribute__ ((packed)) chans;
1535 struct {
1536 u8 reg_extension_id;
1537 u8 reg_class;
1538 u8 coverage_class;
1539 } __attribute__ ((packed)) ext;
1540 };
1541 } __attribute__ ((packed));
1542
1543 enum ieee80211_timeout_interval_type {
1544 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1545 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1546 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1547 };
1548
1549 /* BACK action code */
1550 enum ieee80211_back_actioncode {
1551 WLAN_ACTION_ADDBA_REQ = 0,
1552 WLAN_ACTION_ADDBA_RESP = 1,
1553 WLAN_ACTION_DELBA = 2,
1554 };
1555
1556 /* BACK (block-ack) parties */
1557 enum ieee80211_back_parties {
1558 WLAN_BACK_RECIPIENT = 0,
1559 WLAN_BACK_INITIATOR = 1,
1560 };
1561
1562 /* SA Query action */
1563 enum ieee80211_sa_query_action {
1564 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1565 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1566 };
1567
1568
1569 /* cipher suite selectors */
1570 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1571 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1572 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1573 /* reserved: 0x000FAC03 */
1574 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1575 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
1576 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
1577
1578 #define WLAN_CIPHER_SUITE_SMS4 0x00147201
1579
1580 /* AKM suite selectors */
1581 #define WLAN_AKM_SUITE_8021X 0x000FAC01
1582 #define WLAN_AKM_SUITE_PSK 0x000FAC02
1583 #define WLAN_AKM_SUITE_SAE 0x000FAC08
1584 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
1585
1586 #define WLAN_MAX_KEY_LEN 32
1587
1588 #define WLAN_PMKID_LEN 16
1589
1590 #define WLAN_OUI_WFA 0x506f9a
1591 #define WLAN_OUI_TYPE_WFA_P2P 9
1592
1593 /*
1594 * WMM/802.11e Tspec Element
1595 */
1596 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
1597 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
1598
1599 enum ieee80211_tspec_status_code {
1600 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1601 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1602 };
1603
1604 struct ieee80211_tspec_ie {
1605 u8 element_id;
1606 u8 len;
1607 u8 oui[3];
1608 u8 oui_type;
1609 u8 oui_subtype;
1610 u8 version;
1611 __le16 tsinfo;
1612 u8 tsinfo_resvd;
1613 __le16 nominal_msdu;
1614 __le16 max_msdu;
1615 __le32 min_service_int;
1616 __le32 max_service_int;
1617 __le32 inactivity_int;
1618 __le32 suspension_int;
1619 __le32 service_start_time;
1620 __le32 min_data_rate;
1621 __le32 mean_data_rate;
1622 __le32 peak_data_rate;
1623 __le32 max_burst_size;
1624 __le32 delay_bound;
1625 __le32 min_phy_rate;
1626 __le16 sba;
1627 __le16 medium_time;
1628 } __packed;
1629
1630 /**
1631 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1632 * @hdr: the frame
1633 *
1634 * The qos ctrl bytes come after the frame_control, duration, seq_num
1635 * and 3 or 4 addresses of length ETH_ALEN.
1636 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1637 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1638 */
1639 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1640 {
1641 if (ieee80211_has_a4(hdr->frame_control))
1642 return (u8 *)hdr + 30;
1643 else
1644 return (u8 *)hdr + 24;
1645 }
1646
1647 /**
1648 * ieee80211_get_SA - get pointer to SA
1649 * @hdr: the frame
1650 *
1651 * Given an 802.11 frame, this function returns the offset
1652 * to the source address (SA). It does not verify that the
1653 * header is long enough to contain the address, and the
1654 * header must be long enough to contain the frame control
1655 * field.
1656 */
1657 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1658 {
1659 if (ieee80211_has_a4(hdr->frame_control))
1660 return hdr->addr4;
1661 if (ieee80211_has_fromds(hdr->frame_control))
1662 return hdr->addr3;
1663 return hdr->addr2;
1664 }
1665
1666 /**
1667 * ieee80211_get_DA - get pointer to DA
1668 * @hdr: the frame
1669 *
1670 * Given an 802.11 frame, this function returns the offset
1671 * to the destination address (DA). It does not verify that
1672 * the header is long enough to contain the address, and the
1673 * header must be long enough to contain the frame control
1674 * field.
1675 */
1676 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1677 {
1678 if (ieee80211_has_tods(hdr->frame_control))
1679 return hdr->addr3;
1680 else
1681 return hdr->addr1;
1682 }
1683
1684 /**
1685 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1686 * @hdr: the frame (buffer must include at least the first octet of payload)
1687 */
1688 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1689 {
1690 if (ieee80211_is_disassoc(hdr->frame_control) ||
1691 ieee80211_is_deauth(hdr->frame_control))
1692 return true;
1693
1694 if (ieee80211_is_action(hdr->frame_control)) {
1695 u8 *category;
1696
1697 /*
1698 * Action frames, excluding Public Action frames, are Robust
1699 * Management Frames. However, if we are looking at a Protected
1700 * frame, skip the check since the data may be encrypted and
1701 * the frame has already been found to be a Robust Management
1702 * Frame (by the other end).
1703 */
1704 if (ieee80211_has_protected(hdr->frame_control))
1705 return true;
1706 category = ((u8 *) hdr) + 24;
1707 return *category != WLAN_CATEGORY_PUBLIC &&
1708 *category != WLAN_CATEGORY_HT &&
1709 *category != WLAN_CATEGORY_SELF_PROTECTED &&
1710 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
1711 }
1712
1713 return false;
1714 }
1715
1716 /**
1717 * ieee80211_is_public_action - check if frame is a public action frame
1718 * @hdr: the frame
1719 * @len: length of the frame
1720 */
1721 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
1722 size_t len)
1723 {
1724 struct ieee80211_mgmt *mgmt = (void *)hdr;
1725
1726 if (len < IEEE80211_MIN_ACTION_SIZE)
1727 return false;
1728 if (!ieee80211_is_action(hdr->frame_control))
1729 return false;
1730 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
1731 }
1732
1733 /**
1734 * ieee80211_fhss_chan_to_freq - get channel frequency
1735 * @channel: the FHSS channel
1736 *
1737 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1738 * Ref IEEE 802.11-2007 section 14.6
1739 */
1740 static inline int ieee80211_fhss_chan_to_freq(int channel)
1741 {
1742 if ((channel > 1) && (channel < 96))
1743 return channel + 2400;
1744 else
1745 return -1;
1746 }
1747
1748 /**
1749 * ieee80211_freq_to_fhss_chan - get channel
1750 * @freq: the channels frequency
1751 *
1752 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1753 * Ref IEEE 802.11-2007 section 14.6
1754 */
1755 static inline int ieee80211_freq_to_fhss_chan(int freq)
1756 {
1757 if ((freq > 2401) && (freq < 2496))
1758 return freq - 2400;
1759 else
1760 return -1;
1761 }
1762
1763 /**
1764 * ieee80211_dsss_chan_to_freq - get channel center frequency
1765 * @channel: the DSSS channel
1766 *
1767 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1768 * Ref IEEE 802.11-2007 section 15.6
1769 */
1770 static inline int ieee80211_dsss_chan_to_freq(int channel)
1771 {
1772 if ((channel > 0) && (channel < 14))
1773 return 2407 + (channel * 5);
1774 else if (channel == 14)
1775 return 2484;
1776 else
1777 return -1;
1778 }
1779
1780 /**
1781 * ieee80211_freq_to_dsss_chan - get channel
1782 * @freq: the frequency
1783 *
1784 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1785 * Ref IEEE 802.11-2007 section 15.6
1786 *
1787 * This routine selects the channel with the closest center frequency.
1788 */
1789 static inline int ieee80211_freq_to_dsss_chan(int freq)
1790 {
1791 if ((freq >= 2410) && (freq < 2475))
1792 return (freq - 2405) / 5;
1793 else if ((freq >= 2482) && (freq < 2487))
1794 return 14;
1795 else
1796 return -1;
1797 }
1798
1799 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1800 * Ref IEEE 802.11-2007 section 18.4.6.2
1801 *
1802 * The channels and frequencies are the same as those defined for DSSS
1803 */
1804 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1805 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1806
1807 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1808 * Ref IEEE 802.11-2007 section 19.4.2
1809 */
1810 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1811 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1812
1813 /**
1814 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1815 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1816 * @channel: the OFDM channel
1817 *
1818 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1819 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1820 */
1821 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1822 {
1823 if ((channel > 0) && (channel <= 200) &&
1824 (s_freq >= 4000))
1825 return s_freq + (channel * 5);
1826 else
1827 return -1;
1828 }
1829
1830 /**
1831 * ieee80211_freq_to_ofdm_channel - get channel
1832 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1833 * @freq: the frequency
1834 *
1835 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1836 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1837 *
1838 * This routine selects the channel with the closest center frequency.
1839 */
1840 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1841 {
1842 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1843 (s_freq >= 4000))
1844 return (freq + 2 - s_freq) / 5;
1845 else
1846 return -1;
1847 }
1848
1849 /**
1850 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1851 * @tu: the TUs
1852 */
1853 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1854 {
1855 return 1024 * tu;
1856 }
1857
1858 /**
1859 * ieee80211_check_tim - check if AID bit is set in TIM
1860 * @tim: the TIM IE
1861 * @tim_len: length of the TIM IE
1862 * @aid: the AID to look for
1863 */
1864 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1865 u8 tim_len, u16 aid)
1866 {
1867 u8 mask;
1868 u8 index, indexn1, indexn2;
1869
1870 if (unlikely(!tim || tim_len < sizeof(*tim)))
1871 return false;
1872
1873 aid &= 0x3fff;
1874 index = aid / 8;
1875 mask = 1 << (aid & 7);
1876
1877 indexn1 = tim->bitmap_ctrl & 0xfe;
1878 indexn2 = tim_len + indexn1 - 4;
1879
1880 if (index < indexn1 || index > indexn2)
1881 return false;
1882
1883 index -= indexn1;
1884
1885 return !!(tim->virtual_map[index] & mask);
1886 }
1887
1888 #endif /* LINUX_IEEE80211_H */
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