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mac80211: check uapsd state for dynamic power save
[deliverable/linux.git] / include / linux / ieee80211.h
CommitLineData
a9de8ce0
JB		 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
9387b7ca
JL		 15#ifndef LINUX_IEEE80211_H
16#define LINUX_IEEE80211_H
a9de8ce0
JB		 17
18#include <linux/types.h>
f97df02e 19#include <asm/byteorder.h>
a9de8ce0 20
3f46b29c
JB		 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
a9de8ce0
JB		 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 */
6b4e3241
RR		 73#define IEEE80211_STYPE_BACK_REQ 0x0080
74#define IEEE80211_STYPE_BACK 0x0090
a9de8ce0
JB		 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 */
c237899d
MW		 102#define IEEE80211_MAX_FRAG_THRESHOLD 2352
103#define IEEE80211_MAX_RTS_THRESHOLD 2353
a9de8ce0
JB		 104#define IEEE80211_MAX_AID 2007
105#define IEEE80211_MAX_TIM_LEN 251
a9de8ce0
JB		 106/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
107 6.2.1.1.2.
108
c237899d
MW		 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
a9de8ce0
JB		 114
115#define IEEE80211_MAX_SSID_LEN 32
1239cd58 116
37c57989 117#define IEEE80211_MAX_MESH_ID_LEN 32
1239cd58 118
fd7c8a40 119#define IEEE80211_QOS_CTL_LEN 2
238f74a2
HH		 120#define IEEE80211_QOS_CTL_TID_MASK 0x000F
121#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
a9de8ce0 122
ab13315a
KV		 123/* U-APSD queue for WMM IEs sent by AP */
124#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
125
126/* U-APSD queues for WMM IEs sent by STA */
127#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
128#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
129#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
130#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
131#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
132
133/* U-APSD max SP length for WMM IEs sent by STA */
134#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
135#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
136#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
137#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
138#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
139#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
140
a9de8ce0
JB		 141struct ieee80211_hdr {
142 __le16 frame_control;
143 __le16 duration_id;
144 u8 addr1[6];
145 u8 addr2[6];
146 u8 addr3[6];
147 __le16 seq_ctrl;
148 u8 addr4[6];
149} __attribute__ ((packed));
150
7044cc56
KV		 151struct ieee80211_hdr_3addr {
152 __le16 frame_control;
153 __le16 duration_id;
154 u8 addr1[6];
155 u8 addr2[6];
156 u8 addr3[6];
157 __le16 seq_ctrl;
158} __attribute__ ((packed));
159
fd7c8a40
HH		 160/**
161 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
162 * @fc: frame control bytes in little-endian byteorder
163 */
164static inline int ieee80211_has_tods(__le16 fc)
165{
166 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
167}
168
169/**
170 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
171 * @fc: frame control bytes in little-endian byteorder
172 */
173static inline int ieee80211_has_fromds(__le16 fc)
174{
175 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
176}
177
178/**
179 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
180 * @fc: frame control bytes in little-endian byteorder
181 */
182static inline int ieee80211_has_a4(__le16 fc)
183{
184 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
185 return (fc & tmp) == tmp;
186}
187
188/**
189 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
190 * @fc: frame control bytes in little-endian byteorder
191 */
192static inline int ieee80211_has_morefrags(__le16 fc)
193{
194 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
195}
196
197/**
198 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
199 * @fc: frame control bytes in little-endian byteorder
200 */
201static inline int ieee80211_has_retry(__le16 fc)
202{
203 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
204}
205
206/**
207 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
208 * @fc: frame control bytes in little-endian byteorder
209 */
210static inline int ieee80211_has_pm(__le16 fc)
211{
212 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
213}
214
215/**
216 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
217 * @fc: frame control bytes in little-endian byteorder
218 */
219static inline int ieee80211_has_moredata(__le16 fc)
220{
221 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
222}
223
224/**
225 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
226 * @fc: frame control bytes in little-endian byteorder
227 */
228static inline int ieee80211_has_protected(__le16 fc)
229{
230 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
231}
232
233/**
234 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
235 * @fc: frame control bytes in little-endian byteorder
236 */
237static inline int ieee80211_has_order(__le16 fc)
238{
239 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
240}
241
242/**
243 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
244 * @fc: frame control bytes in little-endian byteorder
245 */
246static inline int ieee80211_is_mgmt(__le16 fc)
247{
248 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
249 cpu_to_le16(IEEE80211_FTYPE_MGMT);
250}
251
252/**
253 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
254 * @fc: frame control bytes in little-endian byteorder
255 */
256static inline int ieee80211_is_ctl(__le16 fc)
257{
258 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
259 cpu_to_le16(IEEE80211_FTYPE_CTL);
260}
261
262/**
263 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
264 * @fc: frame control bytes in little-endian byteorder
265 */
266static inline int ieee80211_is_data(__le16 fc)
267{
268 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
269 cpu_to_le16(IEEE80211_FTYPE_DATA);
270}
271
272/**
273 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
274 * @fc: frame control bytes in little-endian byteorder
275 */
276static inline int ieee80211_is_data_qos(__le16 fc)
277{
278 /*
279 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
280 * to check the one bit
281 */
282 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
283 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
284}
285
286/**
287 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
288 * @fc: frame control bytes in little-endian byteorder
289 */
290static inline int ieee80211_is_data_present(__le16 fc)
291{
292 /*
293 * mask with 0x40 and test that that bit is clear to only return true
294 * for the data-containing substypes.
295 */
296 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
297 cpu_to_le16(IEEE80211_FTYPE_DATA);
298}
299
300/**
301 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
302 * @fc: frame control bytes in little-endian byteorder
303 */
304static inline int ieee80211_is_assoc_req(__le16 fc)
305{
306 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
307 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
308}
309
310/**
311 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
312 * @fc: frame control bytes in little-endian byteorder
313 */
314static inline int ieee80211_is_assoc_resp(__le16 fc)
315{
316 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
317 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
318}
319
320/**
321 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
322 * @fc: frame control bytes in little-endian byteorder
323 */
324static inline int ieee80211_is_reassoc_req(__le16 fc)
325{
326 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
327 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
328}
329
330/**
331 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
332 * @fc: frame control bytes in little-endian byteorder
333 */
334static inline int ieee80211_is_reassoc_resp(__le16 fc)
335{
336 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
337 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
338}
339
340/**
341 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
342 * @fc: frame control bytes in little-endian byteorder
343 */
344static inline int ieee80211_is_probe_req(__le16 fc)
345{
346 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
347 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
348}
349
350/**
351 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
352 * @fc: frame control bytes in little-endian byteorder
353 */
354static inline int ieee80211_is_probe_resp(__le16 fc)
355{
356 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
357 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
358}
359
360/**
361 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
362 * @fc: frame control bytes in little-endian byteorder
363 */
364static inline int ieee80211_is_beacon(__le16 fc)
365{
366 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
367 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
368}
369
370/**
371 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
372 * @fc: frame control bytes in little-endian byteorder
373 */
374static inline int ieee80211_is_atim(__le16 fc)
375{
376 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
377 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
378}
379
380/**
381 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
382 * @fc: frame control bytes in little-endian byteorder
383 */
384static inline int ieee80211_is_disassoc(__le16 fc)
385{
386 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
387 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
388}
389
390/**
391 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
392 * @fc: frame control bytes in little-endian byteorder
393 */
394static inline int ieee80211_is_auth(__le16 fc)
395{
396 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
397 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
398}
399
400/**
401 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
402 * @fc: frame control bytes in little-endian byteorder
403 */
404static inline int ieee80211_is_deauth(__le16 fc)
405{
406 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
407 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
408}
409
410/**
411 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
412 * @fc: frame control bytes in little-endian byteorder
413 */
414static inline int ieee80211_is_action(__le16 fc)
415{
416 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
417 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
418}
419
420/**
421 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
422 * @fc: frame control bytes in little-endian byteorder
423 */
424static inline int ieee80211_is_back_req(__le16 fc)
425{
426 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
427 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
428}
429
430/**
431 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
432 * @fc: frame control bytes in little-endian byteorder
433 */
434static inline int ieee80211_is_back(__le16 fc)
435{
436 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
437 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
438}
439
440/**
441 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
442 * @fc: frame control bytes in little-endian byteorder
443 */
444static inline int ieee80211_is_pspoll(__le16 fc)
445{
446 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
447 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
448}
449
450/**
451 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
452 * @fc: frame control bytes in little-endian byteorder
453 */
454static inline int ieee80211_is_rts(__le16 fc)
455{
456 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
457 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
458}
459
460/**
461 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
462 * @fc: frame control bytes in little-endian byteorder
463 */
464static inline int ieee80211_is_cts(__le16 fc)
465{
466 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
467 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
468}
469
470/**
471 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
472 * @fc: frame control bytes in little-endian byteorder
473 */
474static inline int ieee80211_is_ack(__le16 fc)
475{
476 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
477 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
478}
479
480/**
481 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
482 * @fc: frame control bytes in little-endian byteorder
483 */
484static inline int ieee80211_is_cfend(__le16 fc)
485{
486 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
487 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
488}
489
490/**
491 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
492 * @fc: frame control bytes in little-endian byteorder
493 */
494static inline int ieee80211_is_cfendack(__le16 fc)
495{
496 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
497 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
498}
499
500/**
22403def 501 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
fd7c8a40
HH		 502 * @fc: frame control bytes in little-endian byteorder
503 */
504static inline int ieee80211_is_nullfunc(__le16 fc)
505{
506 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
507 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
508}
a9de8ce0 509
22403def
JB		 510/**
511 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
512 * @fc: frame control bytes in little-endian byteorder
513 */
514static inline int ieee80211_is_qos_nullfunc(__le16 fc)
515{
516 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
517 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
518}
519
37c57989
LCC		 520struct ieee80211s_hdr {
521 u8 flags;
522 u8 ttl;
51ceddad 523 __le32 seqnum;
37c57989
LCC		 524 u8 eaddr1[6];
525 u8 eaddr2[6];
526 u8 eaddr3[6];
527} __attribute__ ((packed));
528
79617dee
Y		 529/* Mesh flags */
530#define MESH_FLAGS_AE_A4 0x1
531#define MESH_FLAGS_AE_A5_A6 0x2
e31a16d6 532#define MESH_FLAGS_AE 0x3
79617dee
Y		 533#define MESH_FLAGS_PS_DEEP 0x4
534
f2df3859
AK		 535/**
536 * struct ieee80211_quiet_ie
537 *
538 * This structure refers to "Quiet information element"
539 */
540struct ieee80211_quiet_ie {
541 u8 count;
542 u8 period;
543 __le16 duration;
544 __le16 offset;
545} __attribute__ ((packed));
546
547/**
548 * struct ieee80211_msrment_ie
549 *
550 * This structure refers to "Measurement Request/Report information element"
551 */
552struct ieee80211_msrment_ie {
553 u8 token;
554 u8 mode;
555 u8 type;
556 u8 request[0];
557} __attribute__ ((packed));
558
559/**
560 * struct ieee80211_channel_sw_ie
561 *
562 * This structure refers to "Channel Switch Announcement information element"
563 */
564struct ieee80211_channel_sw_ie {
565 u8 mode;
566 u8 new_ch_num;
567 u8 count;
568} __attribute__ ((packed));
37c57989 569
98f7dfd8
EG		 570/**
571 * struct ieee80211_tim
572 *
573 * This structure refers to "Traffic Indication Map information element"
574 */
575struct ieee80211_tim_ie {
576 u8 dtim_count;
577 u8 dtim_period;
578 u8 bitmap_ctrl;
579 /* variable size: 1 - 251 bytes */
e7ec86f5 580 u8 virtual_map[1];
98f7dfd8
EG		 581} __attribute__ ((packed));
582
136cfa28
RP		 583/**
584 * struct ieee80211_meshconf_ie
585 *
586 * This structure refers to "Mesh Configuration information element"
587 */
588struct ieee80211_meshconf_ie {
589 u8 meshconf_psel;
590 u8 meshconf_pmetric;
591 u8 meshconf_congest;
592 u8 meshconf_synch;
593 u8 meshconf_auth;
594 u8 meshconf_form;
595 u8 meshconf_cap;
596} __attribute__ ((packed));
597
90a5e169
RP		 598/**
599 * struct ieee80211_rann_ie
600 *
601 * This structure refers to "Root Announcement information element"
602 */
603struct ieee80211_rann_ie {
604 u8 rann_flags;
605 u8 rann_hopcount;
606 u8 rann_ttl;
607 u8 rann_addr[6];
608 u32 rann_seq;
609 u32 rann_metric;
610} __attribute__ ((packed));
611
9dfd6ba3 612#define WLAN_SA_QUERY_TR_ID_LEN 2
fea14732 613
a9de8ce0
JB		 614struct ieee80211_mgmt {
615 __le16 frame_control;
616 __le16 duration;
617 u8 da[6];
618 u8 sa[6];
619 u8 bssid[6];
620 __le16 seq_ctrl;
621 union {
622 struct {
623 __le16 auth_alg;
624 __le16 auth_transaction;
625 __le16 status_code;
626 /* possibly followed by Challenge text */
627 u8 variable[0];
628 } __attribute__ ((packed)) auth;
629 struct {
630 __le16 reason_code;
631 } __attribute__ ((packed)) deauth;
632 struct {
633 __le16 capab_info;
634 __le16 listen_interval;
635 /* followed by SSID and Supported rates */
636 u8 variable[0];
637 } __attribute__ ((packed)) assoc_req;
638 struct {
639 __le16 capab_info;
640 __le16 status_code;
641 __le16 aid;
642 /* followed by Supported rates */
643 u8 variable[0];
644 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
645 struct {
646 __le16 capab_info;
647 __le16 listen_interval;
648 u8 current_ap[6];
649 /* followed by SSID and Supported rates */
650 u8 variable[0];
651 } __attribute__ ((packed)) reassoc_req;
652 struct {
653 __le16 reason_code;
654 } __attribute__ ((packed)) disassoc;
655 struct {
656 __le64 timestamp;
657 __le16 beacon_int;
658 __le16 capab_info;
659 /* followed by some of SSID, Supported rates,
660 * FH Params, DS Params, CF Params, IBSS Params, TIM */
661 u8 variable[0];
662 } __attribute__ ((packed)) beacon;
663 struct {
664 /* only variable items: SSID, Supported rates */
665 u8 variable[0];
666 } __attribute__ ((packed)) probe_req;
667 struct {
668 __le64 timestamp;
669 __le16 beacon_int;
670 __le16 capab_info;
671 /* followed by some of SSID, Supported rates,
672 * FH Params, DS Params, CF Params, IBSS Params */
673 u8 variable[0];
674 } __attribute__ ((packed)) probe_resp;
675 struct {
676 u8 category;
677 union {
678 struct {
679 u8 action_code;
680 u8 dialog_token;
681 u8 status_code;
682 u8 variable[0];
683 } __attribute__ ((packed)) wme_action;
684 struct{
685 u8 action_code;
686 u8 element_id;
687 u8 length;
f2df3859 688 struct ieee80211_channel_sw_ie sw_elem;
a9de8ce0 689 } __attribute__((packed)) chan_switch;
f2df3859
AK		 690 struct{
691 u8 action_code;
692 u8 dialog_token;
693 u8 element_id;
694 u8 length;
695 struct ieee80211_msrment_ie msr_elem;
696 } __attribute__((packed)) measurement;
6b4e3241
RR		 697 struct{
698 u8 action_code;
699 u8 dialog_token;
700 __le16 capab;
701 __le16 timeout;
702 __le16 start_seq_num;
703 } __attribute__((packed)) addba_req;
704 struct{
705 u8 action_code;
706 u8 dialog_token;
707 __le16 status;
708 __le16 capab;
709 __le16 timeout;
710 } __attribute__((packed)) addba_resp;
711 struct{
712 u8 action_code;
713 __le16 params;
714 __le16 reason_code;
715 } __attribute__((packed)) delba;
37c57989
LCC		 716 struct{
717 u8 action_code;
718 /* capab_info for open and confirm,
719 * reason for close
720 */
721 __le16 aux;
722 /* Followed in plink_confirm by status
723 * code, AID and supported rates,
724 * and directly by supported rates in
725 * plink_open and plink_close
726 */
727 u8 variable[0];
728 } __attribute__((packed)) plink_action;
729 struct{
730 u8 action_code;
731 u8 variable[0];
732 } __attribute__((packed)) mesh_action;
fea14732
JM		 733 struct {
734 u8 action;
735 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
736 } __attribute__ ((packed)) sa_query;
0f78231b
JB		 737 struct {
738 u8 action;
739 u8 smps_control;
740 } __attribute__ ((packed)) ht_smps;
a9de8ce0
JB		 741 } u;
742 } __attribute__ ((packed)) action;
743 } u;
744} __attribute__ ((packed));
745
44d414db
JB		 746/* mgmt header + 1 byte category code */
747#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
748
a9de8ce0 749
765cb46a
JM		 750/* Management MIC information element (IEEE 802.11w) */
751struct ieee80211_mmie {
752 u8 element_id;
753 u8 length;
754 __le16 key_id;
755 u8 sequence_number[6];
756 u8 mic[8];
757} __attribute__ ((packed));
758
a9de8ce0
JB		 759/* Control frames */
760struct ieee80211_rts {
761 __le16 frame_control;
762 __le16 duration;
763 u8 ra[6];
764 u8 ta[6];
765} __attribute__ ((packed));
766
767struct ieee80211_cts {
768 __le16 frame_control;
769 __le16 duration;
770 u8 ra[6];
771} __attribute__ ((packed));
772
fc6971d4
JM		 773struct ieee80211_pspoll {
774 __le16 frame_control;
775 __le16 aid;
776 u8 bssid[6];
777 u8 ta[6];
778} __attribute__ ((packed));
779
6b4e3241
RR		 780/**
781 * struct ieee80211_bar - HT Block Ack Request
782 *
783 * This structure refers to "HT BlockAckReq" as
784 * described in 802.11n draft section 7.2.1.7.1
785 */
786struct ieee80211_bar {
787 __le16 frame_control;
788 __le16 duration;
789 __u8 ra[6];
790 __u8 ta[6];
a8b47ea3
RR		 791 __le16 control;
792 __le16 start_seq_num;
6b4e3241
RR		 793} __attribute__((packed));
794
429a3805
RR		 795/* 802.11 BAR control masks */
796#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
797#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
798
d9fe60de
JB		 799
800#define IEEE80211_HT_MCS_MASK_LEN 10
801
802/**
803 * struct ieee80211_mcs_info - MCS information
804 * @rx_mask: RX mask
9da3e068
LR		 805 * @rx_highest: highest supported RX rate. If set represents
806 * the highest supported RX data rate in units of 1 Mbps.
807 * If this field is 0 this value should not be used to
808 * consider the highest RX data rate supported.
d9fe60de
JB		 809 * @tx_params: TX parameters
810 */
811struct ieee80211_mcs_info {
812 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
813 __le16 rx_highest;
814 u8 tx_params;
815 u8 reserved[3];
816} __attribute__((packed));
817
818/* 802.11n HT capability MSC set */
819#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
820#define IEEE80211_HT_MCS_TX_DEFINED 0x01
821#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
822/* value 0 == 1 stream etc */
823#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
824#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
825#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
826#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
827
828/*
829 * 802.11n D5.0 20.3.5 / 20.6 says:
830 * - indices 0 to 7 and 32 are single spatial stream
831 * - 8 to 31 are multiple spatial streams using equal modulation
832 * [8..15 for two streams, 16..23 for three and 24..31 for four]
833 * - remainder are multiple spatial streams using unequal modulation
834 */
835#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
836#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
837 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
838
6b4e3241
RR		 839/**
840 * struct ieee80211_ht_cap - HT capabilities
841 *
d9fe60de
JB		 842 * This structure is the "HT capabilities element" as
843 * described in 802.11n D5.0 7.3.2.57
6b4e3241
RR		 844 */
845struct ieee80211_ht_cap {
846 __le16 cap_info;
847 u8 ampdu_params_info;
d9fe60de
JB		 848
849 /* 16 bytes MCS information */
850 struct ieee80211_mcs_info mcs;
851
6b4e3241
RR		 852 __le16 extended_ht_cap_info;
853 __le32 tx_BF_cap_info;
854 u8 antenna_selection_info;
855} __attribute__ ((packed));
856
d9fe60de
JB		 857/* 802.11n HT capabilities masks (for cap_info) */
858#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
859#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
860#define IEEE80211_HT_CAP_SM_PS 0x000C
0f78231b 861#define IEEE80211_HT_CAP_SM_PS_SHIFT 2
d9fe60de
JB		 862#define IEEE80211_HT_CAP_GRN_FLD 0x0010
863#define IEEE80211_HT_CAP_SGI_20 0x0020
864#define IEEE80211_HT_CAP_SGI_40 0x0040
865#define IEEE80211_HT_CAP_TX_STBC 0x0080
866#define IEEE80211_HT_CAP_RX_STBC 0x0300
867#define IEEE80211_HT_CAP_DELAY_BA 0x0400
868#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
869#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
9a418af5 870#define IEEE80211_HT_CAP_RESERVED 0x2000
d9fe60de
JB		 871#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
872#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
873
874/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
875#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
876#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
0f78231b 877#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
d9fe60de 878
d1eba248
S		 879/*
880 * Maximum length of AMPDU that the STA can receive.
881 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
882 */
883enum ieee80211_max_ampdu_length_exp {
884 IEEE80211_HT_MAX_AMPDU_8K = 0,
885 IEEE80211_HT_MAX_AMPDU_16K = 1,
886 IEEE80211_HT_MAX_AMPDU_32K = 2,
887 IEEE80211_HT_MAX_AMPDU_64K = 3
888};
889
890#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
891
892/* Minimum MPDU start spacing */
893enum ieee80211_min_mpdu_spacing {
894 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
895 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
896 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
897 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
898 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
899 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
900 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
901 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
902};
903
6b4e3241 904/**
d9fe60de 905 * struct ieee80211_ht_info - HT information
6b4e3241 906 *
d9fe60de
JB		 907 * This structure is the "HT information element" as
908 * described in 802.11n D5.0 7.3.2.58
6b4e3241 909 */
d9fe60de 910struct ieee80211_ht_info {
6b4e3241
RR		 911 u8 control_chan;
912 u8 ht_param;
913 __le16 operation_mode;
914 __le16 stbc_param;
915 u8 basic_set[16];
916} __attribute__ ((packed));
917
d9fe60de
JB		 918/* for ht_param */
919#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
920#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
921#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
922#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
923#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
924#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
925#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
926#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
927
928/* for operation_mode */
929#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
930#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
931#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
932#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
933#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
934#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
935#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
936
937/* for stbc_param */
938#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
939#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
940#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
941#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
942#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
943#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
944
a9de8ce0 945
44d414db
JB		 946/* block-ack parameters */
947#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
948#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
949#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
950#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
951#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
952
953/*
954 * A-PMDU buffer sizes
955 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
956 */
957#define IEEE80211_MIN_AMPDU_BUF 0x8
958#define IEEE80211_MAX_AMPDU_BUF 0x40
959
960
0f78231b 961/* Spatial Multiplexing Power Save Modes (for capability) */
00c5ae2f
TW		 962#define WLAN_HT_CAP_SM_PS_STATIC 0
963#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
964#define WLAN_HT_CAP_SM_PS_INVALID 2
965#define WLAN_HT_CAP_SM_PS_DISABLED 3
e53cfe0e 966
0f78231b
JB		 967/* for SM power control field lower two bits */
968#define WLAN_HT_SMPS_CONTROL_DISABLED 0
969#define WLAN_HT_SMPS_CONTROL_STATIC 1
970#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
971
a9de8ce0
JB		 972/* Authentication algorithms */
973#define WLAN_AUTH_OPEN 0
974#define WLAN_AUTH_SHARED_KEY 1
636a5d36 975#define WLAN_AUTH_FT 2
bb608e9d 976#define WLAN_AUTH_LEAP 128
a9de8ce0
JB		 977
978#define WLAN_AUTH_CHALLENGE_LEN 128
979
980#define WLAN_CAPABILITY_ESS (1<<0)
981#define WLAN_CAPABILITY_IBSS (1<<1)
982#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
983#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
984#define WLAN_CAPABILITY_PRIVACY (1<<4)
985#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
986#define WLAN_CAPABILITY_PBCC (1<<6)
987#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
b6623486 988
a9de8ce0
JB		 989/* 802.11h */
990#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
991#define WLAN_CAPABILITY_QOS (1<<9)
992#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
993#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
b6623486
AK		 994/* measurement */
995#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
996#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
997#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
998
999#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1000#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1001#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1002
a9de8ce0 1003
5628221c
DD		 1004/* 802.11g ERP information element */
1005#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1006#define WLAN_ERP_USE_PROTECTION (1<<1)
1007#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1008
1009/* WLAN_ERP_BARKER_PREAMBLE values */
1010enum {
1011 WLAN_ERP_PREAMBLE_SHORT = 0,
1012 WLAN_ERP_PREAMBLE_LONG = 1,
1013};
1014
a9de8ce0
JB		 1015/* Status codes */
1016enum ieee80211_statuscode {
1017 WLAN_STATUS_SUCCESS = 0,
1018 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1019 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1020 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1021 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1022 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1023 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1024 WLAN_STATUS_CHALLENGE_FAIL = 15,
1025 WLAN_STATUS_AUTH_TIMEOUT = 16,
1026 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1027 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1028 /* 802.11b */
1029 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1030 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1031 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1032 /* 802.11h */
1033 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1034 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1035 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1036 /* 802.11g */
1037 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1038 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
63a5ab82
JM		 1039 /* 802.11w */
1040 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1041 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
a9de8ce0
JB		 1042 /* 802.11i */
1043 WLAN_STATUS_INVALID_IE = 40,
1044 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1045 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1046 WLAN_STATUS_INVALID_AKMP = 43,
1047 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1048 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1049 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
6b4e3241
RR		 1050 /* 802.11e */
1051 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1052 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1053 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1054 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1055 WLAN_STATUS_REQUEST_DECLINED = 37,
1056 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1057 WLAN_STATUS_CHANGE_TSPEC = 39,
1058 WLAN_STATUS_WAIT_TS_DELAY = 47,
1059 WLAN_STATUS_NO_DIRECT_LINK = 48,
1060 WLAN_STATUS_STA_NOT_PRESENT = 49,
1061 WLAN_STATUS_STA_NOT_QSTA = 50,
a9de8ce0
JB		 1062};
1063
1064
1065/* Reason codes */
1066enum ieee80211_reasoncode {
1067 WLAN_REASON_UNSPECIFIED = 1,
1068 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1069 WLAN_REASON_DEAUTH_LEAVING = 3,
1070 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1071 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1072 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1073 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1074 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1075 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1076 /* 802.11h */
1077 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1078 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1079 /* 802.11i */
1080 WLAN_REASON_INVALID_IE = 13,
1081 WLAN_REASON_MIC_FAILURE = 14,
1082 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1083 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1084 WLAN_REASON_IE_DIFFERENT = 17,
1085 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1086 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1087 WLAN_REASON_INVALID_AKMP = 20,
1088 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1089 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1090 WLAN_REASON_IEEE8021X_FAILED = 23,
1091 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
6b4e3241
RR		 1092 /* 802.11e */
1093 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1094 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1095 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1096 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1097 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1098 WLAN_REASON_QSTA_NOT_USE = 37,
1099 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1100 WLAN_REASON_QSTA_TIMEOUT = 39,
1101 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
a9de8ce0
JB		 1102};
1103
1104
1105/* Information Element IDs */
1106enum ieee80211_eid {
1107 WLAN_EID_SSID = 0,
1108 WLAN_EID_SUPP_RATES = 1,
1109 WLAN_EID_FH_PARAMS = 2,
1110 WLAN_EID_DS_PARAMS = 3,
1111 WLAN_EID_CF_PARAMS = 4,
1112 WLAN_EID_TIM = 5,
1113 WLAN_EID_IBSS_PARAMS = 6,
1114 WLAN_EID_CHALLENGE = 16,
8e664fb3 1115
a9de8ce0
JB		 1116 WLAN_EID_COUNTRY = 7,
1117 WLAN_EID_HP_PARAMS = 8,
1118 WLAN_EID_HP_TABLE = 9,
1119 WLAN_EID_REQUEST = 10,
8e664fb3 1120
6b4e3241
RR		 1121 WLAN_EID_QBSS_LOAD = 11,
1122 WLAN_EID_EDCA_PARAM_SET = 12,
1123 WLAN_EID_TSPEC = 13,
1124 WLAN_EID_TCLAS = 14,
1125 WLAN_EID_SCHEDULE = 15,
1126 WLAN_EID_TS_DELAY = 43,
1127 WLAN_EID_TCLAS_PROCESSING = 44,
1128 WLAN_EID_QOS_CAPA = 46,
d619ee08
LCC		 1129 /* 802.11s
1130 *
1131 * All mesh EID numbers are pending IEEE 802.11 ANA approval.
1132 * The numbers have been incremented from those suggested in
1133 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
1134 * EXT_SUPP_RATES.
1135 */
1136 WLAN_EID_MESH_CONFIG = 51,
1137 WLAN_EID_MESH_ID = 52,
1138 WLAN_EID_PEER_LINK = 55,
1139 WLAN_EID_PREQ = 68,
1140 WLAN_EID_PREP = 69,
1141 WLAN_EID_PERR = 70,
90a5e169 1142 WLAN_EID_RANN = 49, /* compatible with FreeBSD */
8e664fb3 1143
a9de8ce0
JB		 1144 WLAN_EID_PWR_CONSTRAINT = 32,
1145 WLAN_EID_PWR_CAPABILITY = 33,
1146 WLAN_EID_TPC_REQUEST = 34,
1147 WLAN_EID_TPC_REPORT = 35,
1148 WLAN_EID_SUPPORTED_CHANNELS = 36,
1149 WLAN_EID_CHANNEL_SWITCH = 37,
1150 WLAN_EID_MEASURE_REQUEST = 38,
1151 WLAN_EID_MEASURE_REPORT = 39,
1152 WLAN_EID_QUIET = 40,
1153 WLAN_EID_IBSS_DFS = 41,
8e664fb3 1154
a9de8ce0
JB		 1155 WLAN_EID_ERP_INFO = 42,
1156 WLAN_EID_EXT_SUPP_RATES = 50,
8e664fb3 1157
6b4e3241 1158 WLAN_EID_HT_CAPABILITY = 45,
d9fe60de 1159 WLAN_EID_HT_INFORMATION = 61,
8e664fb3 1160
a9de8ce0 1161 WLAN_EID_RSN = 48,
8e664fb3 1162 WLAN_EID_MMIE = 76,
a9de8ce0
JB		 1163 WLAN_EID_WPA = 221,
1164 WLAN_EID_GENERIC = 221,
1165 WLAN_EID_VENDOR_SPECIFIC = 221,
8e664fb3
JB		 1166 WLAN_EID_QOS_PARAMETER = 222,
1167
1168 WLAN_EID_AP_CHAN_REPORT = 51,
1169 WLAN_EID_NEIGHBOR_REPORT = 52,
1170 WLAN_EID_RCPI = 53,
1171 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1172 WLAN_EID_ANTENNA_INFO = 64,
1173 WLAN_EID_RSNI = 65,
1174 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1175 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1176 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1177 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1178 WLAN_EID_MULTIPLE_BSSID = 71,
1179
1180 WLAN_EID_MOBILITY_DOMAIN = 54,
1181 WLAN_EID_FAST_BSS_TRANSITION = 55,
1182 WLAN_EID_TIMEOUT_INTERVAL = 56,
1183 WLAN_EID_RIC_DATA = 57,
1184 WLAN_EID_RIC_DESCRIPTOR = 75,
1185
1186 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1187 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1188 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
a9de8ce0
JB		 1189};
1190
6b4e3241
RR		 1191/* Action category code */
1192enum ieee80211_category {
1193 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1194 WLAN_CATEGORY_QOS = 1,
1195 WLAN_CATEGORY_DLS = 2,
1196 WLAN_CATEGORY_BACK = 3,
fb733336 1197 WLAN_CATEGORY_PUBLIC = 4,
528769cf 1198 WLAN_CATEGORY_HT = 7,
fea14732 1199 WLAN_CATEGORY_SA_QUERY = 8,
528769cf 1200 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
6b4e3241 1201 WLAN_CATEGORY_WMM = 17,
528769cf
JM		 1202 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1203 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
6b4e3241
RR		 1204};
1205
f2df3859
AK		 1206/* SPECTRUM_MGMT action code */
1207enum ieee80211_spectrum_mgmt_actioncode {
1208 WLAN_ACTION_SPCT_MSR_REQ = 0,
1209 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1210 WLAN_ACTION_SPCT_TPC_REQ = 2,
1211 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1212 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1213};
1214
0f78231b
JB		 1215/* HT action codes */
1216enum ieee80211_ht_actioncode {
1217 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1218 WLAN_HT_ACTION_SMPS = 1,
1219 WLAN_HT_ACTION_PSMP = 2,
1220 WLAN_HT_ACTION_PCO_PHASE = 3,
1221 WLAN_HT_ACTION_CSI = 4,
1222 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1223 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1224 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1225};
1226
e31a16d6
ZY		 1227/* Security key length */
1228enum ieee80211_key_len {
1229 WLAN_KEY_LEN_WEP40 = 5,
1230 WLAN_KEY_LEN_WEP104 = 13,
1231 WLAN_KEY_LEN_CCMP = 16,
1232 WLAN_KEY_LEN_TKIP = 32,
8fc0fee0 1233 WLAN_KEY_LEN_AES_CMAC = 16,
e31a16d6
ZY		 1234};
1235
3f2355cb
LR		 1236/*
1237 * IEEE 802.11-2007 7.3.2.9 Country information element
1238 *
1239 * Minimum length is 8 octets, ie len must be evenly
1240 * divisible by 2
1241 */
1242
1243/* Although the spec says 8 I'm seeing 6 in practice */
1244#define IEEE80211_COUNTRY_IE_MIN_LEN 6
1245
1246/*
1247 * For regulatory extension stuff see IEEE 802.11-2007
1248 * Annex I (page 1141) and Annex J (page 1147). Also
1249 * review 7.3.2.9.
1250 *
1251 * When dot11RegulatoryClassesRequired is true and the
1252 * first_channel/reg_extension_id is >= 201 then the IE
1253 * compromises of the 'ext' struct represented below:
1254 *
1255 * - Regulatory extension ID - when generating IE this just needs
1256 * to be monotonically increasing for each triplet passed in
1257 * the IE
1258 * - Regulatory class - index into set of rules
1259 * - Coverage class - index into air propagation time (Table 7-27),
1260 * in microseconds, you can compute the air propagation time from
1261 * the index by multiplying by 3, so index 10 yields a propagation
1262 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1263 * yet. A value of 0 inicates air propagation of <= 1 us.
1264 *
1265 * See also Table I.2 for Emission limit sets and table
1266 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1267 * a reg_class to an emission limit set and behavior limit set.
1268 */
1269#define IEEE80211_COUNTRY_EXTENSION_ID 201
1270
1271/*
1272 * Channels numbers in the IE must be monotonically increasing
1273 * if dot11RegulatoryClassesRequired is not true.
1274 *
1275 * If dot11RegulatoryClassesRequired is true consecutive
1276 * subband triplets following a regulatory triplet shall
1277 * have monotonically increasing first_channel number fields.
1278 *
1279 * Channel numbers shall not overlap.
1280 *
1281 * Note that max_power is signed.
1282 */
1283struct ieee80211_country_ie_triplet {
1284 union {
1285 struct {
1286 u8 first_channel;
1287 u8 num_channels;
1288 s8 max_power;
1289 } __attribute__ ((packed)) chans;
1290 struct {
1291 u8 reg_extension_id;
1292 u8 reg_class;
1293 u8 coverage_class;
1294 } __attribute__ ((packed)) ext;
1295 };
1296} __attribute__ ((packed));
1297
f797eb7e
JM		 1298enum ieee80211_timeout_interval_type {
1299 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1300 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1301 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1302};
1303
6b4e3241
RR		 1304/* BACK action code */
1305enum ieee80211_back_actioncode {
1306 WLAN_ACTION_ADDBA_REQ = 0,
1307 WLAN_ACTION_ADDBA_RESP = 1,
1308 WLAN_ACTION_DELBA = 2,
1309};
1310
07db2183
RR		 1311/* BACK (block-ack) parties */
1312enum ieee80211_back_parties {
1313 WLAN_BACK_RECIPIENT = 0,
1314 WLAN_BACK_INITIATOR = 1,
1315 WLAN_BACK_TIMER = 2,
1316};
1317
fea14732
JM		 1318/* SA Query action */
1319enum ieee80211_sa_query_action {
1320 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1321 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1322};
1323
1324
6b4e3241
RR		 1325/* A-MSDU 802.11n */
1326#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1327
a9de8ce0
JB		 1328/* cipher suite selectors */
1329#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1330#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1331#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1332/* reserved: 0x000FAC03 */
1333#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1334#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
3cfcf6ac 1335#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
a9de8ce0 1336
6a669e65
JB		 1337/* AKM suite selectors */
1338#define WLAN_AKM_SUITE_8021X 0x000FAC01
1339#define WLAN_AKM_SUITE_PSK 0x000FAC02
1340
a9de8ce0
JB		 1341#define WLAN_MAX_KEY_LEN 32
1342
67fbb16b
SO		 1343#define WLAN_PMKID_LEN 16
1344
fd7c8a40
HH		 1345/**
1346 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1347 * @hdr: the frame
1348 *
1349 * The qos ctrl bytes come after the frame_control, duration, seq_num
1350 * and 3 or 4 addresses of length ETH_ALEN.
1351 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1352 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1353 */
1354static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1355{
1356 if (ieee80211_has_a4(hdr->frame_control))
1357 return (u8 *)hdr + 30;
1358 else
1359 return (u8 *)hdr + 24;
1360}
1361
f97df02e
JB		 1362/**
1363 * ieee80211_get_SA - get pointer to SA
fd7c8a40 1364 * @hdr: the frame
f97df02e
JB		 1365 *
1366 * Given an 802.11 frame, this function returns the offset
1367 * to the source address (SA). It does not verify that the
1368 * header is long enough to contain the address, and the
1369 * header must be long enough to contain the frame control
1370 * field.
f97df02e
JB		 1371 */
1372static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1373{
fd7c8a40 1374 if (ieee80211_has_a4(hdr->frame_control))
5a433b3a 1375 return hdr->addr4;
fd7c8a40
HH		 1376 if (ieee80211_has_fromds(hdr->frame_control))
1377 return hdr->addr3;
1378 return hdr->addr2;
f97df02e
JB		 1379}
1380
1381/**
1382 * ieee80211_get_DA - get pointer to DA
fd7c8a40 1383 * @hdr: the frame
f97df02e
JB		 1384 *
1385 * Given an 802.11 frame, this function returns the offset
1386 * to the destination address (DA). It does not verify that
1387 * the header is long enough to contain the address, and the
1388 * header must be long enough to contain the frame control
1389 * field.
f97df02e
JB		 1390 */
1391static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1392{
fd7c8a40 1393 if (ieee80211_has_tods(hdr->frame_control))
f97df02e 1394 return hdr->addr3;
5a433b3a
HH		 1395 else
1396 return hdr->addr1;
f97df02e
JB		 1397}
1398
fb733336
JM		 1399/**
1400 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1401 * @hdr: the frame (buffer must include at least the first octet of payload)
1402 */
1403static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1404{
1405 if (ieee80211_is_disassoc(hdr->frame_control) ||
1406 ieee80211_is_deauth(hdr->frame_control))
1407 return true;
1408
1409 if (ieee80211_is_action(hdr->frame_control)) {
1410 u8 *category;
1411
1412 /*
1413 * Action frames, excluding Public Action frames, are Robust
1414 * Management Frames. However, if we are looking at a Protected
1415 * frame, skip the check since the data may be encrypted and
1416 * the frame has already been found to be a Robust Management
1417 * Frame (by the other end).
1418 */
1419 if (ieee80211_has_protected(hdr->frame_control))
1420 return true;
1421 category = ((u8 *) hdr) + 24;
528769cf
JM		 1422 return *category != WLAN_CATEGORY_PUBLIC &&
1423 *category != WLAN_CATEGORY_HT &&
1424 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
fb733336
JM		 1425 }
1426
1427 return false;
1428}
1429
9ee677c2
DK		 1430/**
1431 * ieee80211_fhss_chan_to_freq - get channel frequency
1432 * @channel: the FHSS channel
1433 *
1434 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1435 * Ref IEEE 802.11-2007 section 14.6
1436 */
1437static inline int ieee80211_fhss_chan_to_freq(int channel)
1438{
1439 if ((channel > 1) && (channel < 96))
1440 return channel + 2400;
1441 else
1442 return -1;
1443}
1444
1445/**
1446 * ieee80211_freq_to_fhss_chan - get channel
1447 * @freq: the channels frequency
1448 *
1449 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1450 * Ref IEEE 802.11-2007 section 14.6
1451 */
1452static inline int ieee80211_freq_to_fhss_chan(int freq)
1453{
1454 if ((freq > 2401) && (freq < 2496))
1455 return freq - 2400;
1456 else
1457 return -1;
1458}
1459
1460/**
1461 * ieee80211_dsss_chan_to_freq - get channel center frequency
1462 * @channel: the DSSS channel
1463 *
1464 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1465 * Ref IEEE 802.11-2007 section 15.6
1466 */
1467static inline int ieee80211_dsss_chan_to_freq(int channel)
1468{
1469 if ((channel > 0) && (channel < 14))
1470 return 2407 + (channel * 5);
1471 else if (channel == 14)
1472 return 2484;
1473 else
1474 return -1;
1475}
1476
1477/**
1478 * ieee80211_freq_to_dsss_chan - get channel
1479 * @freq: the frequency
1480 *
1481 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1482 * Ref IEEE 802.11-2007 section 15.6
1483 *
1484 * This routine selects the channel with the closest center frequency.
1485 */
1486static inline int ieee80211_freq_to_dsss_chan(int freq)
1487{
1488 if ((freq >= 2410) && (freq < 2475))
1489 return (freq - 2405) / 5;
1490 else if ((freq >= 2482) && (freq < 2487))
1491 return 14;
1492 else
1493 return -1;
1494}
1495
1496/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1497 * Ref IEEE 802.11-2007 section 18.4.6.2
1498 *
1499 * The channels and frequencies are the same as those defined for DSSS
1500 */
1501#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1502#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1503
1504/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1505 * Ref IEEE 802.11-2007 section 19.4.2
1506 */
1507#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1508#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1509
1510/**
1511 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1512 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1513 * @channel: the OFDM channel
1514 *
1515 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1516 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1517 */
1518static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1519{
1520 if ((channel > 0) && (channel <= 200) &&
1521 (s_freq >= 4000))
1522 return s_freq + (channel * 5);
1523 else
1524 return -1;
1525}
1526
1527/**
1528 * ieee80211_freq_to_ofdm_channel - get channel
1529 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1530 * @freq: the frequency
1531 *
1532 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1533 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1534 *
1535 * This routine selects the channel with the closest center frequency.
1536 */
1537static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1538{
1539 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1540 (s_freq >= 4000))
1541 return (freq + 2 - s_freq) / 5;
1542 else
1543 return -1;
1544}
1545
10f644a4
JB		 1546/**
1547 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1548 * @tu: the TUs
1549 */
1550static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1551{
1552 return 1024 * tu;
1553}
1554
e7ec86f5
JB		 1555/**
1556 * ieee80211_check_tim - check if AID bit is set in TIM
1557 * @tim: the TIM IE
1558 * @tim_len: length of the TIM IE
1559 * @aid: the AID to look for
1560 */
1561static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1562 u8 tim_len, u16 aid)
1563{
1564 u8 mask;
1565 u8 index, indexn1, indexn2;
1566
1567 if (unlikely(!tim || tim_len < sizeof(*tim)))
1568 return false;
1569
1570 aid &= 0x3fff;
1571 index = aid / 8;
1572 mask = 1 << (aid & 7);
1573
1574 indexn1 = tim->bitmap_ctrl & 0xfe;
1575 indexn2 = tim_len + indexn1 - 4;
1576
1577 if (index < indexn1 || index > indexn2)
1578 return false;
1579
1580 index -= indexn1;
1581
1582 return !!(tim->virtual_map[index] & mask);
1583}
1584
9387b7ca 1585#endif /* LINUX_IEEE80211_H */
Linux kernel - Deliverables
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