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mac80211: Rename mesh_params to mesh_config to prepare for mesh_setup
[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)
44316cb1 125#define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
ab13315a
KV		 126
127/* U-APSD queues for WMM IEs sent by STA */
128#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
129#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
130#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
131#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
132#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
133
134/* U-APSD max SP length for WMM IEs sent by STA */
135#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
136#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
137#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
138#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
139#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
140#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
141
d0dd2de0
AT		 142#define IEEE80211_HT_CTL_LEN 4
143
a9de8ce0
JB		 144struct ieee80211_hdr {
145 __le16 frame_control;
146 __le16 duration_id;
147 u8 addr1[6];
148 u8 addr2[6];
149 u8 addr3[6];
150 __le16 seq_ctrl;
151 u8 addr4[6];
152} __attribute__ ((packed));
153
7044cc56
KV		 154struct ieee80211_hdr_3addr {
155 __le16 frame_control;
156 __le16 duration_id;
157 u8 addr1[6];
158 u8 addr2[6];
159 u8 addr3[6];
160 __le16 seq_ctrl;
161} __attribute__ ((packed));
162
558a6669
KV		 163struct ieee80211_qos_hdr {
164 __le16 frame_control;
165 __le16 duration_id;
166 u8 addr1[6];
167 u8 addr2[6];
168 u8 addr3[6];
169 __le16 seq_ctrl;
170 __le16 qos_ctrl;
171} __attribute__ ((packed));
172
fd7c8a40
HH		 173/**
174 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
175 * @fc: frame control bytes in little-endian byteorder
176 */
177static inline int ieee80211_has_tods(__le16 fc)
178{
179 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
180}
181
182/**
183 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
184 * @fc: frame control bytes in little-endian byteorder
185 */
186static inline int ieee80211_has_fromds(__le16 fc)
187{
188 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
189}
190
191/**
192 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
193 * @fc: frame control bytes in little-endian byteorder
194 */
195static inline int ieee80211_has_a4(__le16 fc)
196{
197 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
198 return (fc & tmp) == tmp;
199}
200
201/**
202 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
203 * @fc: frame control bytes in little-endian byteorder
204 */
205static inline int ieee80211_has_morefrags(__le16 fc)
206{
207 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
208}
209
210/**
211 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
212 * @fc: frame control bytes in little-endian byteorder
213 */
214static inline int ieee80211_has_retry(__le16 fc)
215{
216 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
217}
218
219/**
220 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
221 * @fc: frame control bytes in little-endian byteorder
222 */
223static inline int ieee80211_has_pm(__le16 fc)
224{
225 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
226}
227
228/**
229 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
230 * @fc: frame control bytes in little-endian byteorder
231 */
232static inline int ieee80211_has_moredata(__le16 fc)
233{
234 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
235}
236
237/**
238 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
239 * @fc: frame control bytes in little-endian byteorder
240 */
241static inline int ieee80211_has_protected(__le16 fc)
242{
243 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
244}
245
246/**
247 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
248 * @fc: frame control bytes in little-endian byteorder
249 */
250static inline int ieee80211_has_order(__le16 fc)
251{
252 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
253}
254
255/**
256 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
257 * @fc: frame control bytes in little-endian byteorder
258 */
259static inline int ieee80211_is_mgmt(__le16 fc)
260{
261 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
262 cpu_to_le16(IEEE80211_FTYPE_MGMT);
263}
264
265/**
266 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
267 * @fc: frame control bytes in little-endian byteorder
268 */
269static inline int ieee80211_is_ctl(__le16 fc)
270{
271 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
272 cpu_to_le16(IEEE80211_FTYPE_CTL);
273}
274
275/**
276 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
277 * @fc: frame control bytes in little-endian byteorder
278 */
279static inline int ieee80211_is_data(__le16 fc)
280{
281 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
282 cpu_to_le16(IEEE80211_FTYPE_DATA);
283}
284
285/**
286 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
287 * @fc: frame control bytes in little-endian byteorder
288 */
289static inline int ieee80211_is_data_qos(__le16 fc)
290{
291 /*
292 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
293 * to check the one bit
294 */
295 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
296 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
297}
298
299/**
300 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
301 * @fc: frame control bytes in little-endian byteorder
302 */
303static inline int ieee80211_is_data_present(__le16 fc)
304{
305 /*
306 * mask with 0x40 and test that that bit is clear to only return true
307 * for the data-containing substypes.
308 */
309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
310 cpu_to_le16(IEEE80211_FTYPE_DATA);
311}
312
313/**
314 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
315 * @fc: frame control bytes in little-endian byteorder
316 */
317static inline int ieee80211_is_assoc_req(__le16 fc)
318{
319 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
320 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
321}
322
323/**
324 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
325 * @fc: frame control bytes in little-endian byteorder
326 */
327static inline int ieee80211_is_assoc_resp(__le16 fc)
328{
329 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
330 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
331}
332
333/**
334 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
335 * @fc: frame control bytes in little-endian byteorder
336 */
337static inline int ieee80211_is_reassoc_req(__le16 fc)
338{
339 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
340 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
341}
342
343/**
344 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
345 * @fc: frame control bytes in little-endian byteorder
346 */
347static inline int ieee80211_is_reassoc_resp(__le16 fc)
348{
349 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
350 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
351}
352
353/**
354 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
355 * @fc: frame control bytes in little-endian byteorder
356 */
357static inline int ieee80211_is_probe_req(__le16 fc)
358{
359 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
360 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
361}
362
363/**
364 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
365 * @fc: frame control bytes in little-endian byteorder
366 */
367static inline int ieee80211_is_probe_resp(__le16 fc)
368{
369 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
370 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
371}
372
373/**
374 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
375 * @fc: frame control bytes in little-endian byteorder
376 */
377static inline int ieee80211_is_beacon(__le16 fc)
378{
379 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
380 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
381}
382
383/**
384 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
385 * @fc: frame control bytes in little-endian byteorder
386 */
387static inline int ieee80211_is_atim(__le16 fc)
388{
389 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
390 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
391}
392
393/**
394 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
395 * @fc: frame control bytes in little-endian byteorder
396 */
397static inline int ieee80211_is_disassoc(__le16 fc)
398{
399 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
400 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
401}
402
403/**
404 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
405 * @fc: frame control bytes in little-endian byteorder
406 */
407static inline int ieee80211_is_auth(__le16 fc)
408{
409 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
410 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
411}
412
413/**
414 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
415 * @fc: frame control bytes in little-endian byteorder
416 */
417static inline int ieee80211_is_deauth(__le16 fc)
418{
419 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
420 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
421}
422
423/**
424 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
425 * @fc: frame control bytes in little-endian byteorder
426 */
427static inline int ieee80211_is_action(__le16 fc)
428{
429 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
430 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
431}
432
433/**
434 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
435 * @fc: frame control bytes in little-endian byteorder
436 */
437static inline int ieee80211_is_back_req(__le16 fc)
438{
439 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
440 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
441}
442
443/**
444 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
445 * @fc: frame control bytes in little-endian byteorder
446 */
447static inline int ieee80211_is_back(__le16 fc)
448{
449 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
450 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
451}
452
453/**
454 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
455 * @fc: frame control bytes in little-endian byteorder
456 */
457static inline int ieee80211_is_pspoll(__le16 fc)
458{
459 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
460 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
461}
462
463/**
464 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
465 * @fc: frame control bytes in little-endian byteorder
466 */
467static inline int ieee80211_is_rts(__le16 fc)
468{
469 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
470 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
471}
472
473/**
474 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
475 * @fc: frame control bytes in little-endian byteorder
476 */
477static inline int ieee80211_is_cts(__le16 fc)
478{
479 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
480 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
481}
482
483/**
484 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
485 * @fc: frame control bytes in little-endian byteorder
486 */
487static inline int ieee80211_is_ack(__le16 fc)
488{
489 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
490 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
491}
492
493/**
494 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
495 * @fc: frame control bytes in little-endian byteorder
496 */
497static inline int ieee80211_is_cfend(__le16 fc)
498{
499 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
500 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
501}
502
503/**
504 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
505 * @fc: frame control bytes in little-endian byteorder
506 */
507static inline int ieee80211_is_cfendack(__le16 fc)
508{
509 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
510 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
511}
512
513/**
22403def 514 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
fd7c8a40
HH		 515 * @fc: frame control bytes in little-endian byteorder
516 */
517static inline int ieee80211_is_nullfunc(__le16 fc)
518{
519 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
520 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
521}
a9de8ce0 522
22403def
JB		 523/**
524 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
525 * @fc: frame control bytes in little-endian byteorder
526 */
527static inline int ieee80211_is_qos_nullfunc(__le16 fc)
528{
529 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
530 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
531}
532
37c57989
LCC		 533struct ieee80211s_hdr {
534 u8 flags;
535 u8 ttl;
51ceddad 536 __le32 seqnum;
37c57989
LCC		 537 u8 eaddr1[6];
538 u8 eaddr2[6];
539 u8 eaddr3[6];
540} __attribute__ ((packed));
541
79617dee
Y		 542/* Mesh flags */
543#define MESH_FLAGS_AE_A4 0x1
544#define MESH_FLAGS_AE_A5_A6 0x2
e31a16d6 545#define MESH_FLAGS_AE 0x3
79617dee
Y		 546#define MESH_FLAGS_PS_DEEP 0x4
547
f2df3859
AK		 548/**
549 * struct ieee80211_quiet_ie
550 *
551 * This structure refers to "Quiet information element"
552 */
553struct ieee80211_quiet_ie {
554 u8 count;
555 u8 period;
556 __le16 duration;
557 __le16 offset;
558} __attribute__ ((packed));
559
560/**
561 * struct ieee80211_msrment_ie
562 *
563 * This structure refers to "Measurement Request/Report information element"
564 */
565struct ieee80211_msrment_ie {
566 u8 token;
567 u8 mode;
568 u8 type;
569 u8 request[0];
570} __attribute__ ((packed));
571
572/**
573 * struct ieee80211_channel_sw_ie
574 *
575 * This structure refers to "Channel Switch Announcement information element"
576 */
577struct ieee80211_channel_sw_ie {
578 u8 mode;
579 u8 new_ch_num;
580 u8 count;
581} __attribute__ ((packed));
37c57989 582
98f7dfd8
EG		 583/**
584 * struct ieee80211_tim
585 *
586 * This structure refers to "Traffic Indication Map information element"
587 */
588struct ieee80211_tim_ie {
589 u8 dtim_count;
590 u8 dtim_period;
591 u8 bitmap_ctrl;
592 /* variable size: 1 - 251 bytes */
e7ec86f5 593 u8 virtual_map[1];
98f7dfd8
EG		 594} __attribute__ ((packed));
595
136cfa28
RP		 596/**
597 * struct ieee80211_meshconf_ie
598 *
599 * This structure refers to "Mesh Configuration information element"
600 */
601struct ieee80211_meshconf_ie {
602 u8 meshconf_psel;
603 u8 meshconf_pmetric;
604 u8 meshconf_congest;
605 u8 meshconf_synch;
606 u8 meshconf_auth;
607 u8 meshconf_form;
608 u8 meshconf_cap;
609} __attribute__ ((packed));
610
90a5e169
RP		 611/**
612 * struct ieee80211_rann_ie
613 *
614 * This structure refers to "Root Announcement information element"
615 */
616struct ieee80211_rann_ie {
617 u8 rann_flags;
618 u8 rann_hopcount;
619 u8 rann_ttl;
620 u8 rann_addr[6];
621 u32 rann_seq;
622 u32 rann_metric;
623} __attribute__ ((packed));
624
9dfd6ba3 625#define WLAN_SA_QUERY_TR_ID_LEN 2
fea14732 626
a9de8ce0
JB		 627struct ieee80211_mgmt {
628 __le16 frame_control;
629 __le16 duration;
630 u8 da[6];
631 u8 sa[6];
632 u8 bssid[6];
633 __le16 seq_ctrl;
634 union {
635 struct {
636 __le16 auth_alg;
637 __le16 auth_transaction;
638 __le16 status_code;
639 /* possibly followed by Challenge text */
640 u8 variable[0];
641 } __attribute__ ((packed)) auth;
642 struct {
643 __le16 reason_code;
644 } __attribute__ ((packed)) deauth;
645 struct {
646 __le16 capab_info;
647 __le16 listen_interval;
648 /* followed by SSID and Supported rates */
649 u8 variable[0];
650 } __attribute__ ((packed)) assoc_req;
651 struct {
652 __le16 capab_info;
653 __le16 status_code;
654 __le16 aid;
655 /* followed by Supported rates */
656 u8 variable[0];
657 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
658 struct {
659 __le16 capab_info;
660 __le16 listen_interval;
661 u8 current_ap[6];
662 /* followed by SSID and Supported rates */
663 u8 variable[0];
664 } __attribute__ ((packed)) reassoc_req;
665 struct {
666 __le16 reason_code;
667 } __attribute__ ((packed)) disassoc;
668 struct {
669 __le64 timestamp;
670 __le16 beacon_int;
671 __le16 capab_info;
672 /* followed by some of SSID, Supported rates,
673 * FH Params, DS Params, CF Params, IBSS Params, TIM */
674 u8 variable[0];
675 } __attribute__ ((packed)) beacon;
676 struct {
677 /* only variable items: SSID, Supported rates */
678 u8 variable[0];
679 } __attribute__ ((packed)) probe_req;
680 struct {
681 __le64 timestamp;
682 __le16 beacon_int;
683 __le16 capab_info;
684 /* followed by some of SSID, Supported rates,
685 * FH Params, DS Params, CF Params, IBSS Params */
686 u8 variable[0];
687 } __attribute__ ((packed)) probe_resp;
688 struct {
689 u8 category;
690 union {
691 struct {
692 u8 action_code;
693 u8 dialog_token;
694 u8 status_code;
695 u8 variable[0];
696 } __attribute__ ((packed)) wme_action;
697 struct{
698 u8 action_code;
699 u8 element_id;
700 u8 length;
f2df3859 701 struct ieee80211_channel_sw_ie sw_elem;
a9de8ce0 702 } __attribute__((packed)) chan_switch;
f2df3859
AK		 703 struct{
704 u8 action_code;
705 u8 dialog_token;
706 u8 element_id;
707 u8 length;
708 struct ieee80211_msrment_ie msr_elem;
709 } __attribute__((packed)) measurement;
6b4e3241
RR		 710 struct{
711 u8 action_code;
712 u8 dialog_token;
713 __le16 capab;
714 __le16 timeout;
715 __le16 start_seq_num;
716 } __attribute__((packed)) addba_req;
717 struct{
718 u8 action_code;
719 u8 dialog_token;
720 __le16 status;
721 __le16 capab;
722 __le16 timeout;
723 } __attribute__((packed)) addba_resp;
724 struct{
725 u8 action_code;
726 __le16 params;
727 __le16 reason_code;
728 } __attribute__((packed)) delba;
37c57989
LCC		 729 struct{
730 u8 action_code;
731 /* capab_info for open and confirm,
732 * reason for close
733 */
734 __le16 aux;
735 /* Followed in plink_confirm by status
736 * code, AID and supported rates,
737 * and directly by supported rates in
738 * plink_open and plink_close
739 */
740 u8 variable[0];
741 } __attribute__((packed)) plink_action;
742 struct{
743 u8 action_code;
744 u8 variable[0];
745 } __attribute__((packed)) mesh_action;
fea14732
JM		 746 struct {
747 u8 action;
748 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
749 } __attribute__ ((packed)) sa_query;
0f78231b
JB		 750 struct {
751 u8 action;
752 u8 smps_control;
753 } __attribute__ ((packed)) ht_smps;
a9de8ce0
JB		 754 } u;
755 } __attribute__ ((packed)) action;
756 } u;
757} __attribute__ ((packed));
758
44d414db
JB		 759/* mgmt header + 1 byte category code */
760#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
761
a9de8ce0 762
765cb46a
JM		 763/* Management MIC information element (IEEE 802.11w) */
764struct ieee80211_mmie {
765 u8 element_id;
766 u8 length;
767 __le16 key_id;
768 u8 sequence_number[6];
769 u8 mic[8];
770} __attribute__ ((packed));
771
a9de8ce0
JB		 772/* Control frames */
773struct ieee80211_rts {
774 __le16 frame_control;
775 __le16 duration;
776 u8 ra[6];
777 u8 ta[6];
778} __attribute__ ((packed));
779
780struct ieee80211_cts {
781 __le16 frame_control;
782 __le16 duration;
783 u8 ra[6];
784} __attribute__ ((packed));
785
fc6971d4
JM		 786struct ieee80211_pspoll {
787 __le16 frame_control;
788 __le16 aid;
789 u8 bssid[6];
790 u8 ta[6];
791} __attribute__ ((packed));
792
6b4e3241
RR		 793/**
794 * struct ieee80211_bar - HT Block Ack Request
795 *
796 * This structure refers to "HT BlockAckReq" as
797 * described in 802.11n draft section 7.2.1.7.1
798 */
799struct ieee80211_bar {
800 __le16 frame_control;
801 __le16 duration;
802 __u8 ra[6];
803 __u8 ta[6];
a8b47ea3
RR		 804 __le16 control;
805 __le16 start_seq_num;
6b4e3241
RR		 806} __attribute__((packed));
807
429a3805
RR		 808/* 802.11 BAR control masks */
809#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
810#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
811
d9fe60de
JB		 812
813#define IEEE80211_HT_MCS_MASK_LEN 10
814
815/**
816 * struct ieee80211_mcs_info - MCS information
817 * @rx_mask: RX mask
9da3e068
LR		 818 * @rx_highest: highest supported RX rate. If set represents
819 * the highest supported RX data rate in units of 1 Mbps.
820 * If this field is 0 this value should not be used to
821 * consider the highest RX data rate supported.
d9fe60de
JB		 822 * @tx_params: TX parameters
823 */
824struct ieee80211_mcs_info {
825 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
826 __le16 rx_highest;
827 u8 tx_params;
828 u8 reserved[3];
829} __attribute__((packed));
830
831/* 802.11n HT capability MSC set */
832#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
833#define IEEE80211_HT_MCS_TX_DEFINED 0x01
834#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
835/* value 0 == 1 stream etc */
836#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
837#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
838#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
839#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
840
841/*
842 * 802.11n D5.0 20.3.5 / 20.6 says:
843 * - indices 0 to 7 and 32 are single spatial stream
844 * - 8 to 31 are multiple spatial streams using equal modulation
845 * [8..15 for two streams, 16..23 for three and 24..31 for four]
846 * - remainder are multiple spatial streams using unequal modulation
847 */
848#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
849#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
850 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
851
6b4e3241
RR		 852/**
853 * struct ieee80211_ht_cap - HT capabilities
854 *
d9fe60de
JB		 855 * This structure is the "HT capabilities element" as
856 * described in 802.11n D5.0 7.3.2.57
6b4e3241
RR		 857 */
858struct ieee80211_ht_cap {
859 __le16 cap_info;
860 u8 ampdu_params_info;
d9fe60de
JB		 861
862 /* 16 bytes MCS information */
863 struct ieee80211_mcs_info mcs;
864
6b4e3241
RR		 865 __le16 extended_ht_cap_info;
866 __le32 tx_BF_cap_info;
867 u8 antenna_selection_info;
868} __attribute__ ((packed));
869
d9fe60de
JB		 870/* 802.11n HT capabilities masks (for cap_info) */
871#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
872#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
873#define IEEE80211_HT_CAP_SM_PS 0x000C
0f78231b 874#define IEEE80211_HT_CAP_SM_PS_SHIFT 2
d9fe60de
JB		 875#define IEEE80211_HT_CAP_GRN_FLD 0x0010
876#define IEEE80211_HT_CAP_SGI_20 0x0020
877#define IEEE80211_HT_CAP_SGI_40 0x0040
878#define IEEE80211_HT_CAP_TX_STBC 0x0080
879#define IEEE80211_HT_CAP_RX_STBC 0x0300
f79d9bad 880#define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
d9fe60de
JB		 881#define IEEE80211_HT_CAP_DELAY_BA 0x0400
882#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
883#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
9a418af5 884#define IEEE80211_HT_CAP_RESERVED 0x2000
d9fe60de
JB		 885#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
886#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
887
888/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
889#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
890#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
0f78231b 891#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
d9fe60de 892
d1eba248
S		 893/*
894 * Maximum length of AMPDU that the STA can receive.
895 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
896 */
897enum ieee80211_max_ampdu_length_exp {
898 IEEE80211_HT_MAX_AMPDU_8K = 0,
899 IEEE80211_HT_MAX_AMPDU_16K = 1,
900 IEEE80211_HT_MAX_AMPDU_32K = 2,
901 IEEE80211_HT_MAX_AMPDU_64K = 3
902};
903
904#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
905
906/* Minimum MPDU start spacing */
907enum ieee80211_min_mpdu_spacing {
908 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
909 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
910 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
911 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
912 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
913 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
914 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
915 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
916};
917
6b4e3241 918/**
d9fe60de 919 * struct ieee80211_ht_info - HT information
6b4e3241 920 *
d9fe60de
JB		 921 * This structure is the "HT information element" as
922 * described in 802.11n D5.0 7.3.2.58
6b4e3241 923 */
d9fe60de 924struct ieee80211_ht_info {
6b4e3241
RR		 925 u8 control_chan;
926 u8 ht_param;
927 __le16 operation_mode;
928 __le16 stbc_param;
929 u8 basic_set[16];
930} __attribute__ ((packed));
931
d9fe60de
JB		 932/* for ht_param */
933#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
934#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
935#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
936#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
937#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
938#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
939#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
940#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
941
942/* for operation_mode */
943#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
944#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
945#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
946#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
947#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
948#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
949#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
950
951/* for stbc_param */
952#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
953#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
954#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
955#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
956#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
957#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
958
a9de8ce0 959
44d414db
JB		 960/* block-ack parameters */
961#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
962#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
963#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
964#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
965#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
966
967/*
968 * A-PMDU buffer sizes
969 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
970 */
971#define IEEE80211_MIN_AMPDU_BUF 0x8
972#define IEEE80211_MAX_AMPDU_BUF 0x40
973
974
0f78231b 975/* Spatial Multiplexing Power Save Modes (for capability) */
00c5ae2f
TW		 976#define WLAN_HT_CAP_SM_PS_STATIC 0
977#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
978#define WLAN_HT_CAP_SM_PS_INVALID 2
979#define WLAN_HT_CAP_SM_PS_DISABLED 3
e53cfe0e 980
0f78231b
JB		 981/* for SM power control field lower two bits */
982#define WLAN_HT_SMPS_CONTROL_DISABLED 0
983#define WLAN_HT_SMPS_CONTROL_STATIC 1
984#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
985
a9de8ce0
JB		 986/* Authentication algorithms */
987#define WLAN_AUTH_OPEN 0
988#define WLAN_AUTH_SHARED_KEY 1
636a5d36 989#define WLAN_AUTH_FT 2
cfdfa4d3 990#define WLAN_AUTH_SAE 3
bb608e9d 991#define WLAN_AUTH_LEAP 128
a9de8ce0
JB		 992
993#define WLAN_AUTH_CHALLENGE_LEN 128
994
995#define WLAN_CAPABILITY_ESS (1<<0)
996#define WLAN_CAPABILITY_IBSS (1<<1)
997#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
998#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
999#define WLAN_CAPABILITY_PRIVACY (1<<4)
1000#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1001#define WLAN_CAPABILITY_PBCC (1<<6)
1002#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
b6623486 1003
a9de8ce0
JB		 1004/* 802.11h */
1005#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1006#define WLAN_CAPABILITY_QOS (1<<9)
1007#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1008#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
b6623486
AK		 1009/* measurement */
1010#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1011#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1012#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1013
1014#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1015#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1016#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1017
a9de8ce0 1018
5628221c
DD		 1019/* 802.11g ERP information element */
1020#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1021#define WLAN_ERP_USE_PROTECTION (1<<1)
1022#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1023
1024/* WLAN_ERP_BARKER_PREAMBLE values */
1025enum {
1026 WLAN_ERP_PREAMBLE_SHORT = 0,
1027 WLAN_ERP_PREAMBLE_LONG = 1,
1028};
1029
a9de8ce0
JB		 1030/* Status codes */
1031enum ieee80211_statuscode {
1032 WLAN_STATUS_SUCCESS = 0,
1033 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1034 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1035 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1036 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1037 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1038 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1039 WLAN_STATUS_CHALLENGE_FAIL = 15,
1040 WLAN_STATUS_AUTH_TIMEOUT = 16,
1041 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1042 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1043 /* 802.11b */
1044 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1045 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1046 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1047 /* 802.11h */
1048 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1049 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1050 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1051 /* 802.11g */
1052 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1053 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
63a5ab82
JM		 1054 /* 802.11w */
1055 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1056 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
a9de8ce0
JB		 1057 /* 802.11i */
1058 WLAN_STATUS_INVALID_IE = 40,
1059 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1060 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1061 WLAN_STATUS_INVALID_AKMP = 43,
1062 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1063 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1064 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
6b4e3241
RR		 1065 /* 802.11e */
1066 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1067 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1068 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1069 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1070 WLAN_STATUS_REQUEST_DECLINED = 37,
1071 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1072 WLAN_STATUS_CHANGE_TSPEC = 39,
1073 WLAN_STATUS_WAIT_TS_DELAY = 47,
1074 WLAN_STATUS_NO_DIRECT_LINK = 48,
1075 WLAN_STATUS_STA_NOT_PRESENT = 49,
1076 WLAN_STATUS_STA_NOT_QSTA = 50,
cfdfa4d3
S		 1077 /* 802.11s */
1078 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1079 WLAN_STATUS_FCG_NOT_SUPP = 78,
1080 WLAN_STATUS_STA_NO_TBTT = 78,
a9de8ce0
JB		 1081};
1082
1083
1084/* Reason codes */
1085enum ieee80211_reasoncode {
1086 WLAN_REASON_UNSPECIFIED = 1,
1087 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1088 WLAN_REASON_DEAUTH_LEAVING = 3,
1089 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1090 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1091 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1092 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1093 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1094 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1095 /* 802.11h */
1096 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1097 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1098 /* 802.11i */
1099 WLAN_REASON_INVALID_IE = 13,
1100 WLAN_REASON_MIC_FAILURE = 14,
1101 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1102 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1103 WLAN_REASON_IE_DIFFERENT = 17,
1104 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1105 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1106 WLAN_REASON_INVALID_AKMP = 20,
1107 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1108 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1109 WLAN_REASON_IEEE8021X_FAILED = 23,
1110 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
6b4e3241
RR		 1111 /* 802.11e */
1112 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1113 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1114 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1115 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1116 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1117 WLAN_REASON_QSTA_NOT_USE = 37,
1118 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1119 WLAN_REASON_QSTA_TIMEOUT = 39,
1120 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
cfdfa4d3
S		 1121 /* 802.11s */
1122 WLAN_REASON_MESH_PEER_CANCELED = 52,
1123 WLAN_REASON_MESH_MAX_PEERS = 53,
1124 WLAN_REASON_MESH_CONFIG = 54,
1125 WLAN_REASON_MESH_CLOSE = 55,
1126 WLAN_REASON_MESH_MAX_RETRIES = 56,
1127 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1128 WLAN_REASON_MESH_INVALID_GTK = 58,
1129 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1130 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1131 WLAN_REASON_MESH_PATH_ERROR = 61,
1132 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1133 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1134 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1135 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1136 WLAN_REASON_MESH_CHAN = 66,
a9de8ce0
JB		 1137};
1138
1139
1140/* Information Element IDs */
1141enum ieee80211_eid {
1142 WLAN_EID_SSID = 0,
1143 WLAN_EID_SUPP_RATES = 1,
1144 WLAN_EID_FH_PARAMS = 2,
1145 WLAN_EID_DS_PARAMS = 3,
1146 WLAN_EID_CF_PARAMS = 4,
1147 WLAN_EID_TIM = 5,
1148 WLAN_EID_IBSS_PARAMS = 6,
1149 WLAN_EID_CHALLENGE = 16,
8e664fb3 1150
a9de8ce0
JB		 1151 WLAN_EID_COUNTRY = 7,
1152 WLAN_EID_HP_PARAMS = 8,
1153 WLAN_EID_HP_TABLE = 9,
1154 WLAN_EID_REQUEST = 10,
8e664fb3 1155
6b4e3241
RR		 1156 WLAN_EID_QBSS_LOAD = 11,
1157 WLAN_EID_EDCA_PARAM_SET = 12,
1158 WLAN_EID_TSPEC = 13,
1159 WLAN_EID_TCLAS = 14,
1160 WLAN_EID_SCHEDULE = 15,
1161 WLAN_EID_TS_DELAY = 43,
1162 WLAN_EID_TCLAS_PROCESSING = 44,
1163 WLAN_EID_QOS_CAPA = 46,
cfdfa4d3
S		 1164 /* 802.11s */
1165 WLAN_EID_MESH_CONFIG = 113,
1166 WLAN_EID_MESH_ID = 114,
1167 WLAN_EID_LINK_METRIC_REPORT = 115,
1168 WLAN_EID_CONGESTION_NOTIFICATION = 116,
1169 /* Note that the Peer Link IE has been replaced with the similar
1170 * Peer Management IE. We will keep the former definition until mesh
1171 * code is changed to comply with latest 802.11s drafts.
d619ee08 1172 */
cfdfa4d3
S		 1173 WLAN_EID_PEER_LINK = 55, /* no longer in 802.11s drafts */
1174 WLAN_EID_PEER_MGMT = 117,
1175 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1176 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1177 WLAN_EID_BEACON_TIMING = 120,
1178 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1179 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1180 WLAN_EID_MCCAOP_ADVERT = 123,
1181 WLAN_EID_MCCAOP_TEARDOWN = 124,
1182 WLAN_EID_GANN = 125,
1183 WLAN_EID_RANN = 126,
1184 WLAN_EID_PREQ = 130,
1185 WLAN_EID_PREP = 131,
1186 WLAN_EID_PERR = 132,
1187 WLAN_EID_PXU = 137,
1188 WLAN_EID_PXUC = 138,
1189 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1190 WLAN_EID_MIC = 140,
8e664fb3 1191
a9de8ce0
JB		 1192 WLAN_EID_PWR_CONSTRAINT = 32,
1193 WLAN_EID_PWR_CAPABILITY = 33,
1194 WLAN_EID_TPC_REQUEST = 34,
1195 WLAN_EID_TPC_REPORT = 35,
1196 WLAN_EID_SUPPORTED_CHANNELS = 36,
1197 WLAN_EID_CHANNEL_SWITCH = 37,
1198 WLAN_EID_MEASURE_REQUEST = 38,
1199 WLAN_EID_MEASURE_REPORT = 39,
1200 WLAN_EID_QUIET = 40,
1201 WLAN_EID_IBSS_DFS = 41,
8e664fb3 1202
a9de8ce0
JB		 1203 WLAN_EID_ERP_INFO = 42,
1204 WLAN_EID_EXT_SUPP_RATES = 50,
8e664fb3 1205
6b4e3241 1206 WLAN_EID_HT_CAPABILITY = 45,
d9fe60de 1207 WLAN_EID_HT_INFORMATION = 61,
8e664fb3 1208
a9de8ce0 1209 WLAN_EID_RSN = 48,
8e664fb3 1210 WLAN_EID_MMIE = 76,
a9de8ce0
JB		 1211 WLAN_EID_WPA = 221,
1212 WLAN_EID_GENERIC = 221,
1213 WLAN_EID_VENDOR_SPECIFIC = 221,
8e664fb3
JB		 1214 WLAN_EID_QOS_PARAMETER = 222,
1215
1216 WLAN_EID_AP_CHAN_REPORT = 51,
1217 WLAN_EID_NEIGHBOR_REPORT = 52,
1218 WLAN_EID_RCPI = 53,
1219 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1220 WLAN_EID_ANTENNA_INFO = 64,
1221 WLAN_EID_RSNI = 65,
1222 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1223 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1224 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1225 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1226 WLAN_EID_MULTIPLE_BSSID = 71,
b7e8941b
AK		 1227 WLAN_EID_BSS_COEX_2040 = 72,
1228 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1229 WLAN_EID_EXT_CAPABILITY = 127,
8e664fb3
JB		 1230
1231 WLAN_EID_MOBILITY_DOMAIN = 54,
1232 WLAN_EID_FAST_BSS_TRANSITION = 55,
1233 WLAN_EID_TIMEOUT_INTERVAL = 56,
1234 WLAN_EID_RIC_DATA = 57,
1235 WLAN_EID_RIC_DESCRIPTOR = 75,
1236
1237 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1238 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1239 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
a9de8ce0
JB		 1240};
1241
6b4e3241
RR		 1242/* Action category code */
1243enum ieee80211_category {
1244 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1245 WLAN_CATEGORY_QOS = 1,
1246 WLAN_CATEGORY_DLS = 2,
1247 WLAN_CATEGORY_BACK = 3,
fb733336 1248 WLAN_CATEGORY_PUBLIC = 4,
528769cf 1249 WLAN_CATEGORY_HT = 7,
fea14732 1250 WLAN_CATEGORY_SA_QUERY = 8,
528769cf 1251 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
cfdfa4d3
S		 1252 WLAN_CATEGORY_MESH_ACTION = 13,
1253 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1254 WLAN_CATEGORY_SELF_PROTECTED = 15,
6b4e3241 1255 WLAN_CATEGORY_WMM = 17,
cfdfa4d3
S		 1256 /* TODO: remove MESH_PLINK and MESH_PATH_SEL after */
1257 /* mesh is updated to current 802.11s draft */
1258 WLAN_CATEGORY_MESH_PLINK = 30,
1259 WLAN_CATEGORY_MESH_PATH_SEL = 32,
528769cf
JM		 1260 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1261 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
6b4e3241
RR		 1262};
1263
f2df3859
AK		 1264/* SPECTRUM_MGMT action code */
1265enum ieee80211_spectrum_mgmt_actioncode {
1266 WLAN_ACTION_SPCT_MSR_REQ = 0,
1267 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1268 WLAN_ACTION_SPCT_TPC_REQ = 2,
1269 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1270 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1271};
1272
0f78231b
JB		 1273/* HT action codes */
1274enum ieee80211_ht_actioncode {
1275 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1276 WLAN_HT_ACTION_SMPS = 1,
1277 WLAN_HT_ACTION_PSMP = 2,
1278 WLAN_HT_ACTION_PCO_PHASE = 3,
1279 WLAN_HT_ACTION_CSI = 4,
1280 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1281 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1282 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1283};
1284
e31a16d6
ZY		 1285/* Security key length */
1286enum ieee80211_key_len {
1287 WLAN_KEY_LEN_WEP40 = 5,
1288 WLAN_KEY_LEN_WEP104 = 13,
1289 WLAN_KEY_LEN_CCMP = 16,
1290 WLAN_KEY_LEN_TKIP = 32,
8fc0fee0 1291 WLAN_KEY_LEN_AES_CMAC = 16,
e31a16d6
ZY		 1292};
1293
3f2355cb
LR		 1294/*
1295 * IEEE 802.11-2007 7.3.2.9 Country information element
1296 *
1297 * Minimum length is 8 octets, ie len must be evenly
1298 * divisible by 2
1299 */
1300
1301/* Although the spec says 8 I'm seeing 6 in practice */
1302#define IEEE80211_COUNTRY_IE_MIN_LEN 6
1303
1304/*
1305 * For regulatory extension stuff see IEEE 802.11-2007
1306 * Annex I (page 1141) and Annex J (page 1147). Also
1307 * review 7.3.2.9.
1308 *
1309 * When dot11RegulatoryClassesRequired is true and the
1310 * first_channel/reg_extension_id is >= 201 then the IE
1311 * compromises of the 'ext' struct represented below:
1312 *
1313 * - Regulatory extension ID - when generating IE this just needs
1314 * to be monotonically increasing for each triplet passed in
1315 * the IE
1316 * - Regulatory class - index into set of rules
1317 * - Coverage class - index into air propagation time (Table 7-27),
1318 * in microseconds, you can compute the air propagation time from
1319 * the index by multiplying by 3, so index 10 yields a propagation
1320 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1321 * yet. A value of 0 inicates air propagation of <= 1 us.
1322 *
1323 * See also Table I.2 for Emission limit sets and table
1324 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1325 * a reg_class to an emission limit set and behavior limit set.
1326 */
1327#define IEEE80211_COUNTRY_EXTENSION_ID 201
1328
1329/*
1330 * Channels numbers in the IE must be monotonically increasing
1331 * if dot11RegulatoryClassesRequired is not true.
1332 *
1333 * If dot11RegulatoryClassesRequired is true consecutive
1334 * subband triplets following a regulatory triplet shall
1335 * have monotonically increasing first_channel number fields.
1336 *
1337 * Channel numbers shall not overlap.
1338 *
1339 * Note that max_power is signed.
1340 */
1341struct ieee80211_country_ie_triplet {
1342 union {
1343 struct {
1344 u8 first_channel;
1345 u8 num_channels;
1346 s8 max_power;
1347 } __attribute__ ((packed)) chans;
1348 struct {
1349 u8 reg_extension_id;
1350 u8 reg_class;
1351 u8 coverage_class;
1352 } __attribute__ ((packed)) ext;
1353 };
1354} __attribute__ ((packed));
1355
f797eb7e
JM		 1356enum ieee80211_timeout_interval_type {
1357 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1358 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1359 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1360};
1361
6b4e3241
RR		 1362/* BACK action code */
1363enum ieee80211_back_actioncode {
1364 WLAN_ACTION_ADDBA_REQ = 0,
1365 WLAN_ACTION_ADDBA_RESP = 1,
1366 WLAN_ACTION_DELBA = 2,
1367};
1368
07db2183
RR		 1369/* BACK (block-ack) parties */
1370enum ieee80211_back_parties {
1371 WLAN_BACK_RECIPIENT = 0,
1372 WLAN_BACK_INITIATOR = 1,
07db2183
RR		 1373};
1374
fea14732
JM		 1375/* SA Query action */
1376enum ieee80211_sa_query_action {
1377 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1378 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1379};
1380
1381
6b4e3241
RR		 1382/* A-MSDU 802.11n */
1383#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1384
a9de8ce0
JB		 1385/* cipher suite selectors */
1386#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1387#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1388#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1389/* reserved: 0x000FAC03 */
1390#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1391#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
3cfcf6ac 1392#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
a9de8ce0 1393
6a669e65
JB		 1394/* AKM suite selectors */
1395#define WLAN_AKM_SUITE_8021X 0x000FAC01
1396#define WLAN_AKM_SUITE_PSK 0x000FAC02
cfdfa4d3
S		 1397#define WLAN_AKM_SUITE_SAE 0x000FAC08
1398#define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
6a669e65 1399
a9de8ce0
JB		 1400#define WLAN_MAX_KEY_LEN 32
1401
67fbb16b
SO		 1402#define WLAN_PMKID_LEN 16
1403
fd7c8a40
HH		 1404/**
1405 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1406 * @hdr: the frame
1407 *
1408 * The qos ctrl bytes come after the frame_control, duration, seq_num
1409 * and 3 or 4 addresses of length ETH_ALEN.
1410 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1411 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1412 */
1413static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1414{
1415 if (ieee80211_has_a4(hdr->frame_control))
1416 return (u8 *)hdr + 30;
1417 else
1418 return (u8 *)hdr + 24;
1419}
1420
f97df02e
JB		 1421/**
1422 * ieee80211_get_SA - get pointer to SA
fd7c8a40 1423 * @hdr: the frame
f97df02e
JB		 1424 *
1425 * Given an 802.11 frame, this function returns the offset
1426 * to the source address (SA). It does not verify that the
1427 * header is long enough to contain the address, and the
1428 * header must be long enough to contain the frame control
1429 * field.
f97df02e
JB		 1430 */
1431static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1432{
fd7c8a40 1433 if (ieee80211_has_a4(hdr->frame_control))
5a433b3a 1434 return hdr->addr4;
fd7c8a40
HH		 1435 if (ieee80211_has_fromds(hdr->frame_control))
1436 return hdr->addr3;
1437 return hdr->addr2;
f97df02e
JB		 1438}
1439
1440/**
1441 * ieee80211_get_DA - get pointer to DA
fd7c8a40 1442 * @hdr: the frame
f97df02e
JB		 1443 *
1444 * Given an 802.11 frame, this function returns the offset
1445 * to the destination address (DA). It does not verify that
1446 * the header is long enough to contain the address, and the
1447 * header must be long enough to contain the frame control
1448 * field.
f97df02e
JB		 1449 */
1450static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1451{
fd7c8a40 1452 if (ieee80211_has_tods(hdr->frame_control))
f97df02e 1453 return hdr->addr3;
5a433b3a
HH		 1454 else
1455 return hdr->addr1;
f97df02e
JB		 1456}
1457
fb733336
JM		 1458/**
1459 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1460 * @hdr: the frame (buffer must include at least the first octet of payload)
1461 */
1462static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1463{
1464 if (ieee80211_is_disassoc(hdr->frame_control) ||
1465 ieee80211_is_deauth(hdr->frame_control))
1466 return true;
1467
1468 if (ieee80211_is_action(hdr->frame_control)) {
1469 u8 *category;
1470
1471 /*
1472 * Action frames, excluding Public Action frames, are Robust
1473 * Management Frames. However, if we are looking at a Protected
1474 * frame, skip the check since the data may be encrypted and
1475 * the frame has already been found to be a Robust Management
1476 * Frame (by the other end).
1477 */
1478 if (ieee80211_has_protected(hdr->frame_control))
1479 return true;
1480 category = ((u8 *) hdr) + 24;
528769cf
JM		 1481 return *category != WLAN_CATEGORY_PUBLIC &&
1482 *category != WLAN_CATEGORY_HT &&
1483 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
fb733336
JM		 1484 }
1485
1486 return false;
1487}
1488
9ee677c2
DK		 1489/**
1490 * ieee80211_fhss_chan_to_freq - get channel frequency
1491 * @channel: the FHSS channel
1492 *
1493 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1494 * Ref IEEE 802.11-2007 section 14.6
1495 */
1496static inline int ieee80211_fhss_chan_to_freq(int channel)
1497{
1498 if ((channel > 1) && (channel < 96))
1499 return channel + 2400;
1500 else
1501 return -1;
1502}
1503
1504/**
1505 * ieee80211_freq_to_fhss_chan - get channel
1506 * @freq: the channels frequency
1507 *
1508 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1509 * Ref IEEE 802.11-2007 section 14.6
1510 */
1511static inline int ieee80211_freq_to_fhss_chan(int freq)
1512{
1513 if ((freq > 2401) && (freq < 2496))
1514 return freq - 2400;
1515 else
1516 return -1;
1517}
1518
1519/**
1520 * ieee80211_dsss_chan_to_freq - get channel center frequency
1521 * @channel: the DSSS channel
1522 *
1523 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1524 * Ref IEEE 802.11-2007 section 15.6
1525 */
1526static inline int ieee80211_dsss_chan_to_freq(int channel)
1527{
1528 if ((channel > 0) && (channel < 14))
1529 return 2407 + (channel * 5);
1530 else if (channel == 14)
1531 return 2484;
1532 else
1533 return -1;
1534}
1535
1536/**
1537 * ieee80211_freq_to_dsss_chan - get channel
1538 * @freq: the frequency
1539 *
1540 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1541 * Ref IEEE 802.11-2007 section 15.6
1542 *
1543 * This routine selects the channel with the closest center frequency.
1544 */
1545static inline int ieee80211_freq_to_dsss_chan(int freq)
1546{
1547 if ((freq >= 2410) && (freq < 2475))
1548 return (freq - 2405) / 5;
1549 else if ((freq >= 2482) && (freq < 2487))
1550 return 14;
1551 else
1552 return -1;
1553}
1554
1555/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1556 * Ref IEEE 802.11-2007 section 18.4.6.2
1557 *
1558 * The channels and frequencies are the same as those defined for DSSS
1559 */
1560#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1561#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1562
1563/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1564 * Ref IEEE 802.11-2007 section 19.4.2
1565 */
1566#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1567#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1568
1569/**
1570 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1571 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1572 * @channel: the OFDM channel
1573 *
1574 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1575 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1576 */
1577static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1578{
1579 if ((channel > 0) && (channel <= 200) &&
1580 (s_freq >= 4000))
1581 return s_freq + (channel * 5);
1582 else
1583 return -1;
1584}
1585
1586/**
1587 * ieee80211_freq_to_ofdm_channel - get channel
1588 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1589 * @freq: the frequency
1590 *
1591 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1592 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1593 *
1594 * This routine selects the channel with the closest center frequency.
1595 */
1596static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1597{
1598 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1599 (s_freq >= 4000))
1600 return (freq + 2 - s_freq) / 5;
1601 else
1602 return -1;
1603}
1604
10f644a4
JB		 1605/**
1606 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1607 * @tu: the TUs
1608 */
1609static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1610{
1611 return 1024 * tu;
1612}
1613
e7ec86f5
JB		 1614/**
1615 * ieee80211_check_tim - check if AID bit is set in TIM
1616 * @tim: the TIM IE
1617 * @tim_len: length of the TIM IE
1618 * @aid: the AID to look for
1619 */
1620static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1621 u8 tim_len, u16 aid)
1622{
1623 u8 mask;
1624 u8 index, indexn1, indexn2;
1625
1626 if (unlikely(!tim || tim_len < sizeof(*tim)))
1627 return false;
1628
1629 aid &= 0x3fff;
1630 index = aid / 8;
1631 mask = 1 << (aid & 7);
1632
1633 indexn1 = tim->bitmap_ctrl & 0xfe;
1634 indexn2 = tim_len + indexn1 - 4;
1635
1636 if (index < indexn1 || index > indexn2)
1637 return false;
1638
1639 index -= indexn1;
1640
1641 return !!(tim->virtual_map[index] & mask);
1642}
1643
9387b7ca 1644#endif /* LINUX_IEEE80211_H */
Linux kernel - Deliverables
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