blob: 1ca1b835902b700e4cc154bc339538ec50026435 [file] [log] [blame]
Jiri Benca9de8ce2007-05-05 11:43:04 -07001/*
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
John W. Linville9387b7c2008-09-30 20:59:05 -040015#ifndef LINUX_IEEE80211_H
16#define LINUX_IEEE80211_H
Jiri Benca9de8ce2007-05-05 11:43:04 -070017
18#include <linux/types.h>
Johannes Bergf97df022007-09-18 17:29:20 -040019#include <asm/byteorder.h>
Jiri Benca9de8ce2007-05-05 11:43:04 -070020
Johannes Berg3f46b292009-03-14 19:10:51 +010021/*
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
Jiri Benca9de8ce2007-05-05 11:43:04 -070037#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 */
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +020073#define IEEE80211_STYPE_BACK_REQ 0x0080
74#define IEEE80211_STYPE_BACK 0x0090
Jiri Benca9de8ce2007-05-05 11:43:04 -070075#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 */
Michael Wuc2378992007-10-30 16:50:05 -0400102#define IEEE80211_MAX_FRAG_THRESHOLD 2352
103#define IEEE80211_MAX_RTS_THRESHOLD 2353
Jiri Benca9de8ce2007-05-05 11:43:04 -0700104#define IEEE80211_MAX_AID 2007
105#define IEEE80211_MAX_TIM_LEN 251
Jiri Benca9de8ce2007-05-05 11:43:04 -0700106/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
107 6.2.1.1.2.
108
Michael Wuc2378992007-10-30 16:50:05 -0400109 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
Jiri Benca9de8ce2007-05-05 11:43:04 -0700114
115#define IEEE80211_MAX_SSID_LEN 32
Johannes Berg1239cd52008-10-28 11:12:57 +0100116
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100117#define IEEE80211_MAX_MESH_ID_LEN 32
Johannes Berg1239cd52008-10-28 11:12:57 +0100118
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700119#define IEEE80211_QOS_CTL_LEN 2
Johannes Berg04b7dcf2011-06-22 10:06:59 +0200120/* 1d tag mask */
121#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
122/* TID mask */
123#define IEEE80211_QOS_CTL_TID_MASK 0x000f
124/* EOSP */
125#define IEEE80211_QOS_CTL_EOSP 0x0010
126/* ACK policy */
127#define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000
128#define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
129#define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040
130#define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060
Thomas Pedersen6cc00d52011-11-03 21:11:11 -0700131#define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
Johannes Berg04b7dcf2011-06-22 10:06:59 +0200132/* A-MSDU 802.11n */
133#define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
Javier Cardona2154c812011-09-07 17:49:53 -0700134/* Mesh Control 802.11s */
135#define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
Jiri Benca9de8ce2007-05-05 11:43:04 -0700136
Kalle Valoab133152010-01-12 10:42:31 +0200137/* U-APSD queue for WMM IEs sent by AP */
138#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
Bing Zhao44316cb2010-12-09 18:24:41 -0800139#define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
Kalle Valoab133152010-01-12 10:42:31 +0200140
141/* U-APSD queues for WMM IEs sent by STA */
142#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
143#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
144#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
145#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
146#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
147
148/* U-APSD max SP length for WMM IEs sent by STA */
149#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
150#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
151#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
152#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
153#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
154#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
155
Andriy Tkachukd0dd2de2010-01-20 13:55:06 +0200156#define IEEE80211_HT_CTL_LEN 4
157
Jiri Benca9de8ce2007-05-05 11:43:04 -0700158struct ieee80211_hdr {
159 __le16 frame_control;
160 __le16 duration_id;
161 u8 addr1[6];
162 u8 addr2[6];
163 u8 addr3[6];
164 __le16 seq_ctrl;
165 u8 addr4[6];
166} __attribute__ ((packed));
167
Kalle Valo7044cc52010-01-05 20:16:19 +0200168struct ieee80211_hdr_3addr {
169 __le16 frame_control;
170 __le16 duration_id;
171 u8 addr1[6];
172 u8 addr2[6];
173 u8 addr3[6];
174 __le16 seq_ctrl;
175} __attribute__ ((packed));
176
Kalle Valo558a6662010-01-12 10:43:00 +0200177struct ieee80211_qos_hdr {
178 __le16 frame_control;
179 __le16 duration_id;
180 u8 addr1[6];
181 u8 addr2[6];
182 u8 addr3[6];
183 __le16 seq_ctrl;
184 __le16 qos_ctrl;
185} __attribute__ ((packed));
186
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700187/**
188 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
189 * @fc: frame control bytes in little-endian byteorder
190 */
191static inline int ieee80211_has_tods(__le16 fc)
192{
193 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
194}
195
196/**
197 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
198 * @fc: frame control bytes in little-endian byteorder
199 */
200static inline int ieee80211_has_fromds(__le16 fc)
201{
202 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
203}
204
205/**
206 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
207 * @fc: frame control bytes in little-endian byteorder
208 */
209static inline int ieee80211_has_a4(__le16 fc)
210{
211 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
212 return (fc & tmp) == tmp;
213}
214
215/**
216 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
217 * @fc: frame control bytes in little-endian byteorder
218 */
219static inline int ieee80211_has_morefrags(__le16 fc)
220{
221 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
222}
223
224/**
225 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
226 * @fc: frame control bytes in little-endian byteorder
227 */
228static inline int ieee80211_has_retry(__le16 fc)
229{
230 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
231}
232
233/**
234 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
235 * @fc: frame control bytes in little-endian byteorder
236 */
237static inline int ieee80211_has_pm(__le16 fc)
238{
239 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
240}
241
242/**
243 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
244 * @fc: frame control bytes in little-endian byteorder
245 */
246static inline int ieee80211_has_moredata(__le16 fc)
247{
248 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
249}
250
251/**
252 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
253 * @fc: frame control bytes in little-endian byteorder
254 */
255static inline int ieee80211_has_protected(__le16 fc)
256{
257 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
258}
259
260/**
261 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
262 * @fc: frame control bytes in little-endian byteorder
263 */
264static inline int ieee80211_has_order(__le16 fc)
265{
266 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
267}
268
269/**
270 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
271 * @fc: frame control bytes in little-endian byteorder
272 */
273static inline int ieee80211_is_mgmt(__le16 fc)
274{
275 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
276 cpu_to_le16(IEEE80211_FTYPE_MGMT);
277}
278
279/**
280 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
281 * @fc: frame control bytes in little-endian byteorder
282 */
283static inline int ieee80211_is_ctl(__le16 fc)
284{
285 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
286 cpu_to_le16(IEEE80211_FTYPE_CTL);
287}
288
289/**
290 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
291 * @fc: frame control bytes in little-endian byteorder
292 */
293static inline int ieee80211_is_data(__le16 fc)
294{
295 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
296 cpu_to_le16(IEEE80211_FTYPE_DATA);
297}
298
299/**
300 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
301 * @fc: frame control bytes in little-endian byteorder
302 */
303static inline int ieee80211_is_data_qos(__le16 fc)
304{
305 /*
306 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
307 * to check the one bit
308 */
309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
310 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
311}
312
313/**
314 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
315 * @fc: frame control bytes in little-endian byteorder
316 */
317static inline int ieee80211_is_data_present(__le16 fc)
318{
319 /*
320 * mask with 0x40 and test that that bit is clear to only return true
321 * for the data-containing substypes.
322 */
323 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
324 cpu_to_le16(IEEE80211_FTYPE_DATA);
325}
326
327/**
328 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
329 * @fc: frame control bytes in little-endian byteorder
330 */
331static inline int ieee80211_is_assoc_req(__le16 fc)
332{
333 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
334 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
335}
336
337/**
338 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
339 * @fc: frame control bytes in little-endian byteorder
340 */
341static inline int ieee80211_is_assoc_resp(__le16 fc)
342{
343 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
344 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
345}
346
347/**
348 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
349 * @fc: frame control bytes in little-endian byteorder
350 */
351static inline int ieee80211_is_reassoc_req(__le16 fc)
352{
353 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
354 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
355}
356
357/**
358 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
359 * @fc: frame control bytes in little-endian byteorder
360 */
361static inline int ieee80211_is_reassoc_resp(__le16 fc)
362{
363 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
364 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
365}
366
367/**
368 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
369 * @fc: frame control bytes in little-endian byteorder
370 */
371static inline int ieee80211_is_probe_req(__le16 fc)
372{
373 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
374 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
375}
376
377/**
378 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
379 * @fc: frame control bytes in little-endian byteorder
380 */
381static inline int ieee80211_is_probe_resp(__le16 fc)
382{
383 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
384 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
385}
386
387/**
388 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
389 * @fc: frame control bytes in little-endian byteorder
390 */
391static inline int ieee80211_is_beacon(__le16 fc)
392{
393 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
394 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
395}
396
397/**
398 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
399 * @fc: frame control bytes in little-endian byteorder
400 */
401static inline int ieee80211_is_atim(__le16 fc)
402{
403 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
404 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
405}
406
407/**
408 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
409 * @fc: frame control bytes in little-endian byteorder
410 */
411static inline int ieee80211_is_disassoc(__le16 fc)
412{
413 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
414 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
415}
416
417/**
418 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
419 * @fc: frame control bytes in little-endian byteorder
420 */
421static inline int ieee80211_is_auth(__le16 fc)
422{
423 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
424 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
425}
426
427/**
428 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
429 * @fc: frame control bytes in little-endian byteorder
430 */
431static inline int ieee80211_is_deauth(__le16 fc)
432{
433 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
434 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
435}
436
437/**
438 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
439 * @fc: frame control bytes in little-endian byteorder
440 */
441static inline int ieee80211_is_action(__le16 fc)
442{
443 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
444 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
445}
446
447/**
448 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
449 * @fc: frame control bytes in little-endian byteorder
450 */
451static inline int ieee80211_is_back_req(__le16 fc)
452{
453 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
454 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
455}
456
457/**
458 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
459 * @fc: frame control bytes in little-endian byteorder
460 */
461static inline int ieee80211_is_back(__le16 fc)
462{
463 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
464 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
465}
466
467/**
468 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
469 * @fc: frame control bytes in little-endian byteorder
470 */
471static inline int ieee80211_is_pspoll(__le16 fc)
472{
473 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
474 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
475}
476
477/**
478 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
479 * @fc: frame control bytes in little-endian byteorder
480 */
481static inline int ieee80211_is_rts(__le16 fc)
482{
483 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
484 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
485}
486
487/**
488 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
489 * @fc: frame control bytes in little-endian byteorder
490 */
491static inline int ieee80211_is_cts(__le16 fc)
492{
493 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
494 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
495}
496
497/**
498 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
499 * @fc: frame control bytes in little-endian byteorder
500 */
501static inline int ieee80211_is_ack(__le16 fc)
502{
503 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
504 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
505}
506
507/**
508 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
509 * @fc: frame control bytes in little-endian byteorder
510 */
511static inline int ieee80211_is_cfend(__le16 fc)
512{
513 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
514 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
515}
516
517/**
518 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
519 * @fc: frame control bytes in little-endian byteorder
520 */
521static inline int ieee80211_is_cfendack(__le16 fc)
522{
523 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
524 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
525}
526
527/**
Johannes Berg22403de2009-10-30 12:55:03 +0100528 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700529 * @fc: frame control bytes in little-endian byteorder
530 */
531static inline int ieee80211_is_nullfunc(__le16 fc)
532{
533 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
534 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
535}
Jiri Benca9de8ce2007-05-05 11:43:04 -0700536
Johannes Berg22403de2009-10-30 12:55:03 +0100537/**
538 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
539 * @fc: frame control bytes in little-endian byteorder
540 */
541static inline int ieee80211_is_qos_nullfunc(__le16 fc)
542{
543 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
544 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
545}
546
Helmut Schaa8cb25e12011-12-08 13:11:54 +0100547/**
548 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
549 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
550 */
551static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
552{
553 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
554}
555
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100556struct ieee80211s_hdr {
557 u8 flags;
558 u8 ttl;
Luis Carlos Cobo51cedda2008-04-23 12:15:29 -0700559 __le32 seqnum;
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100560 u8 eaddr1[6];
561 u8 eaddr2[6];
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100562} __attribute__ ((packed));
563
YanBo79617de2008-09-22 13:30:32 +0800564/* Mesh flags */
565#define MESH_FLAGS_AE_A4 0x1
566#define MESH_FLAGS_AE_A5_A6 0x2
Zhu Yie31a16d2009-05-21 21:47:03 +0800567#define MESH_FLAGS_AE 0x3
YanBo79617de2008-09-22 13:30:32 +0800568#define MESH_FLAGS_PS_DEEP 0x4
569
Assaf Kraussf2df3852008-06-15 18:23:29 +0300570/**
571 * struct ieee80211_quiet_ie
572 *
573 * This structure refers to "Quiet information element"
574 */
575struct ieee80211_quiet_ie {
576 u8 count;
577 u8 period;
578 __le16 duration;
579 __le16 offset;
580} __attribute__ ((packed));
581
582/**
583 * struct ieee80211_msrment_ie
584 *
585 * This structure refers to "Measurement Request/Report information element"
586 */
587struct ieee80211_msrment_ie {
588 u8 token;
589 u8 mode;
590 u8 type;
591 u8 request[0];
592} __attribute__ ((packed));
593
594/**
595 * struct ieee80211_channel_sw_ie
596 *
597 * This structure refers to "Channel Switch Announcement information element"
598 */
599struct ieee80211_channel_sw_ie {
600 u8 mode;
601 u8 new_ch_num;
602 u8 count;
603} __attribute__ ((packed));
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100604
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +0800605/**
606 * struct ieee80211_tim
607 *
608 * This structure refers to "Traffic Indication Map information element"
609 */
610struct ieee80211_tim_ie {
611 u8 dtim_count;
612 u8 dtim_period;
613 u8 bitmap_ctrl;
614 /* variable size: 1 - 251 bytes */
Johannes Berge7ec86f2009-04-18 17:33:24 +0200615 u8 virtual_map[1];
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +0800616} __attribute__ ((packed));
617
Rui Paulo90a5e162009-11-11 00:01:31 +0000618/**
Rui Paulo136cfa22009-11-18 18:40:00 +0000619 * struct ieee80211_meshconf_ie
620 *
621 * This structure refers to "Mesh Configuration information element"
622 */
623struct ieee80211_meshconf_ie {
624 u8 meshconf_psel;
625 u8 meshconf_pmetric;
626 u8 meshconf_congest;
627 u8 meshconf_synch;
628 u8 meshconf_auth;
629 u8 meshconf_form;
630 u8 meshconf_cap;
631} __attribute__ ((packed));
632
633/**
Rui Paulo90a5e162009-11-11 00:01:31 +0000634 * struct ieee80211_rann_ie
635 *
636 * This structure refers to "Root Announcement information element"
637 */
638struct ieee80211_rann_ie {
639 u8 rann_flags;
640 u8 rann_hopcount;
641 u8 rann_ttl;
642 u8 rann_addr[6];
643 u32 rann_seq;
Thomas Pedersen25d49e42011-08-11 19:35:15 -0700644 u32 rann_interval;
Rui Paulo90a5e162009-11-11 00:01:31 +0000645 u32 rann_metric;
646} __attribute__ ((packed));
647
Javier Cardona5ee68e52011-08-09 16:45:08 -0700648enum ieee80211_rann_flags {
649 RANN_FLAG_IS_GATE = 1 << 0,
650};
651
Jouni Malinen9dfd6ba2009-05-06 20:34:10 +0300652#define WLAN_SA_QUERY_TR_ID_LEN 2
Jouni Malinenfea14732009-01-08 13:32:06 +0200653
Jiri Benca9de8ce2007-05-05 11:43:04 -0700654struct ieee80211_mgmt {
655 __le16 frame_control;
656 __le16 duration;
657 u8 da[6];
658 u8 sa[6];
659 u8 bssid[6];
660 __le16 seq_ctrl;
661 union {
662 struct {
663 __le16 auth_alg;
664 __le16 auth_transaction;
665 __le16 status_code;
666 /* possibly followed by Challenge text */
667 u8 variable[0];
668 } __attribute__ ((packed)) auth;
669 struct {
670 __le16 reason_code;
671 } __attribute__ ((packed)) deauth;
672 struct {
673 __le16 capab_info;
674 __le16 listen_interval;
675 /* followed by SSID and Supported rates */
676 u8 variable[0];
677 } __attribute__ ((packed)) assoc_req;
678 struct {
679 __le16 capab_info;
680 __le16 status_code;
681 __le16 aid;
682 /* followed by Supported rates */
683 u8 variable[0];
684 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
685 struct {
686 __le16 capab_info;
687 __le16 listen_interval;
688 u8 current_ap[6];
689 /* followed by SSID and Supported rates */
690 u8 variable[0];
691 } __attribute__ ((packed)) reassoc_req;
692 struct {
693 __le16 reason_code;
694 } __attribute__ ((packed)) disassoc;
695 struct {
696 __le64 timestamp;
697 __le16 beacon_int;
698 __le16 capab_info;
699 /* followed by some of SSID, Supported rates,
700 * FH Params, DS Params, CF Params, IBSS Params, TIM */
701 u8 variable[0];
702 } __attribute__ ((packed)) beacon;
703 struct {
704 /* only variable items: SSID, Supported rates */
705 u8 variable[0];
706 } __attribute__ ((packed)) probe_req;
707 struct {
708 __le64 timestamp;
709 __le16 beacon_int;
710 __le16 capab_info;
711 /* followed by some of SSID, Supported rates,
712 * FH Params, DS Params, CF Params, IBSS Params */
713 u8 variable[0];
714 } __attribute__ ((packed)) probe_resp;
715 struct {
716 u8 category;
717 union {
718 struct {
719 u8 action_code;
720 u8 dialog_token;
721 u8 status_code;
722 u8 variable[0];
723 } __attribute__ ((packed)) wme_action;
724 struct{
725 u8 action_code;
726 u8 element_id;
727 u8 length;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300728 struct ieee80211_channel_sw_ie sw_elem;
Jiri Benca9de8ce2007-05-05 11:43:04 -0700729 } __attribute__((packed)) chan_switch;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200730 struct{
731 u8 action_code;
732 u8 dialog_token;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300733 u8 element_id;
734 u8 length;
735 struct ieee80211_msrment_ie msr_elem;
736 } __attribute__((packed)) measurement;
737 struct{
738 u8 action_code;
739 u8 dialog_token;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200740 __le16 capab;
741 __le16 timeout;
742 __le16 start_seq_num;
743 } __attribute__((packed)) addba_req;
744 struct{
745 u8 action_code;
746 u8 dialog_token;
747 __le16 status;
748 __le16 capab;
749 __le16 timeout;
750 } __attribute__((packed)) addba_resp;
751 struct{
752 u8 action_code;
753 __le16 params;
754 __le16 reason_code;
755 } __attribute__((packed)) delba;
Thomas Pedersen6709a6d2011-08-11 19:35:11 -0700756 struct {
757 u8 action_code;
758 u8 variable[0];
759 } __attribute__((packed)) self_prot;
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100760 struct{
761 u8 action_code;
762 u8 variable[0];
763 } __attribute__((packed)) mesh_action;
Jouni Malinenfea14732009-01-08 13:32:06 +0200764 struct {
765 u8 action;
766 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
767 } __attribute__ ((packed)) sa_query;
Johannes Berg0f782312009-12-01 13:37:02 +0100768 struct {
769 u8 action;
770 u8 smps_control;
771 } __attribute__ ((packed)) ht_smps;
Arik Nemtsovdfe018b2011-09-28 14:12:52 +0300772 struct {
773 u8 action_code;
774 u8 dialog_token;
775 __le16 capability;
776 u8 variable[0];
777 } __packed tdls_discover_resp;
Jiri Benca9de8ce2007-05-05 11:43:04 -0700778 } u;
779 } __attribute__ ((packed)) action;
780 } u;
781} __attribute__ ((packed));
782
Christian Lamparterc74d0842011-10-15 00:14:49 +0200783/* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
784#define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
785
Johannes Berg44d414d2008-09-08 17:44:28 +0200786/* mgmt header + 1 byte category code */
787#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
788
Jiri Benca9de8ce2007-05-05 11:43:04 -0700789
Jouni Malinen765cb462009-01-08 13:32:01 +0200790/* Management MIC information element (IEEE 802.11w) */
791struct ieee80211_mmie {
792 u8 element_id;
793 u8 length;
794 __le16 key_id;
795 u8 sequence_number[6];
796 u8 mic[8];
797} __attribute__ ((packed));
798
Eliad Peller0c28ec52011-09-15 11:53:01 +0300799struct ieee80211_vendor_ie {
800 u8 element_id;
801 u8 len;
802 u8 oui[3];
803 u8 oui_type;
804} __packed;
805
Jiri Benca9de8ce2007-05-05 11:43:04 -0700806/* Control frames */
807struct ieee80211_rts {
808 __le16 frame_control;
809 __le16 duration;
810 u8 ra[6];
811 u8 ta[6];
812} __attribute__ ((packed));
813
814struct ieee80211_cts {
815 __le16 frame_control;
816 __le16 duration;
817 u8 ra[6];
818} __attribute__ ((packed));
819
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200820struct ieee80211_pspoll {
821 __le16 frame_control;
822 __le16 aid;
823 u8 bssid[6];
824 u8 ta[6];
825} __attribute__ ((packed));
826
Arik Nemtsovdfe018b2011-09-28 14:12:52 +0300827/* TDLS */
828
829/* Link-id information element */
830struct ieee80211_tdls_lnkie {
831 u8 ie_type; /* Link Identifier IE */
832 u8 ie_len;
833 u8 bssid[6];
834 u8 init_sta[6];
835 u8 resp_sta[6];
836} __packed;
837
838struct ieee80211_tdls_data {
839 u8 da[6];
840 u8 sa[6];
841 __be16 ether_type;
842 u8 payload_type;
843 u8 category;
844 u8 action_code;
845 union {
846 struct {
847 u8 dialog_token;
848 __le16 capability;
849 u8 variable[0];
850 } __packed setup_req;
851 struct {
852 __le16 status_code;
853 u8 dialog_token;
854 __le16 capability;
855 u8 variable[0];
856 } __packed setup_resp;
857 struct {
858 __le16 status_code;
859 u8 dialog_token;
860 u8 variable[0];
861 } __packed setup_cfm;
862 struct {
863 __le16 reason_code;
864 u8 variable[0];
865 } __packed teardown;
866 struct {
867 u8 dialog_token;
868 u8 variable[0];
869 } __packed discover_req;
870 } u;
871} __packed;
872
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200873/**
874 * struct ieee80211_bar - HT Block Ack Request
875 *
876 * This structure refers to "HT BlockAckReq" as
877 * described in 802.11n draft section 7.2.1.7.1
878 */
879struct ieee80211_bar {
880 __le16 frame_control;
881 __le16 duration;
882 __u8 ra[6];
883 __u8 ta[6];
Ron Rindjunskya8b47ea2008-01-21 12:39:11 +0200884 __le16 control;
885 __le16 start_seq_num;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200886} __attribute__((packed));
887
Ron Rindjunsky429a3802008-07-01 14:16:03 +0300888/* 802.11 BAR control masks */
Helmut Schaac1407b62011-08-11 16:17:41 +0200889#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
890#define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
891#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
892#define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
893#define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200894
895#define IEEE80211_HT_MCS_MASK_LEN 10
896
897/**
898 * struct ieee80211_mcs_info - MCS information
899 * @rx_mask: RX mask
Luis R. Rodriguez9da3e062009-12-07 15:57:50 -0500900 * @rx_highest: highest supported RX rate. If set represents
901 * the highest supported RX data rate in units of 1 Mbps.
902 * If this field is 0 this value should not be used to
903 * consider the highest RX data rate supported.
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200904 * @tx_params: TX parameters
905 */
906struct ieee80211_mcs_info {
907 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
908 __le16 rx_highest;
909 u8 tx_params;
910 u8 reserved[3];
911} __attribute__((packed));
912
913/* 802.11n HT capability MSC set */
914#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
915#define IEEE80211_HT_MCS_TX_DEFINED 0x01
916#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
917/* value 0 == 1 stream etc */
918#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
919#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
920#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
921#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
922
923/*
924 * 802.11n D5.0 20.3.5 / 20.6 says:
925 * - indices 0 to 7 and 32 are single spatial stream
926 * - 8 to 31 are multiple spatial streams using equal modulation
927 * [8..15 for two streams, 16..23 for three and 24..31 for four]
928 * - remainder are multiple spatial streams using unequal modulation
929 */
930#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
931#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
932 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
933
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200934/**
935 * struct ieee80211_ht_cap - HT capabilities
936 *
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200937 * This structure is the "HT capabilities element" as
938 * described in 802.11n D5.0 7.3.2.57
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200939 */
940struct ieee80211_ht_cap {
941 __le16 cap_info;
942 u8 ampdu_params_info;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200943
944 /* 16 bytes MCS information */
945 struct ieee80211_mcs_info mcs;
946
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200947 __le16 extended_ht_cap_info;
948 __le32 tx_BF_cap_info;
949 u8 antenna_selection_info;
950} __attribute__ ((packed));
951
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200952/* 802.11n HT capabilities masks (for cap_info) */
953#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
954#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
955#define IEEE80211_HT_CAP_SM_PS 0x000C
Johannes Berg0f782312009-12-01 13:37:02 +0100956#define IEEE80211_HT_CAP_SM_PS_SHIFT 2
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200957#define IEEE80211_HT_CAP_GRN_FLD 0x0010
958#define IEEE80211_HT_CAP_SGI_20 0x0020
959#define IEEE80211_HT_CAP_SGI_40 0x0040
960#define IEEE80211_HT_CAP_TX_STBC 0x0080
961#define IEEE80211_HT_CAP_RX_STBC 0x0300
Felix Fietkauf79d9ba2010-04-19 19:57:35 +0200962#define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200963#define IEEE80211_HT_CAP_DELAY_BA 0x0400
964#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
965#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
Johannes Berg9a418af2009-12-17 13:55:48 +0100966#define IEEE80211_HT_CAP_RESERVED 0x2000
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200967#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
968#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
969
Bing Zhao4dd365f2011-03-30 18:01:15 -0700970/* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
971#define IEEE80211_HT_EXT_CAP_PCO 0x0001
972#define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
973#define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
974#define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
975#define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
976#define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
977#define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
978
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200979/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
980#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
981#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
Johannes Berg0f782312009-12-01 13:37:02 +0100982#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200983
Sujithd1eba242009-07-23 15:31:31 +0530984/*
985 * Maximum length of AMPDU that the STA can receive.
986 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
987 */
988enum ieee80211_max_ampdu_length_exp {
989 IEEE80211_HT_MAX_AMPDU_8K = 0,
990 IEEE80211_HT_MAX_AMPDU_16K = 1,
991 IEEE80211_HT_MAX_AMPDU_32K = 2,
992 IEEE80211_HT_MAX_AMPDU_64K = 3
993};
994
995#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
996
997/* Minimum MPDU start spacing */
998enum ieee80211_min_mpdu_spacing {
999 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1000 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1001 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1002 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1003 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1004 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1005 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1006 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1007};
1008
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001009/**
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001010 * struct ieee80211_ht_info - HT information
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001011 *
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001012 * This structure is the "HT information element" as
1013 * described in 802.11n D5.0 7.3.2.58
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001014 */
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001015struct ieee80211_ht_info {
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001016 u8 control_chan;
1017 u8 ht_param;
1018 __le16 operation_mode;
1019 __le16 stbc_param;
1020 u8 basic_set[16];
1021} __attribute__ ((packed));
1022
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001023/* for ht_param */
1024#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1025#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1026#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1027#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1028#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1029#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1030#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
1031#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
1032
1033/* for operation_mode */
1034#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1035#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1036#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1037#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1038#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1039#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1040#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1041
1042/* for stbc_param */
1043#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1044#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1045#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1046#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1047#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1048#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1049
Jiri Benca9de8ce2007-05-05 11:43:04 -07001050
Johannes Berg44d414d2008-09-08 17:44:28 +02001051/* block-ack parameters */
1052#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1053#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
Amitkumar Karwar8d661f12011-01-11 16:14:24 -08001054#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
Johannes Berg44d414d2008-09-08 17:44:28 +02001055#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1056#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1057
1058/*
1059 * A-PMDU buffer sizes
1060 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1061 */
1062#define IEEE80211_MIN_AMPDU_BUF 0x8
1063#define IEEE80211_MAX_AMPDU_BUF 0x40
1064
1065
Johannes Berg0f782312009-12-01 13:37:02 +01001066/* Spatial Multiplexing Power Save Modes (for capability) */
Tomas Winkler00c5ae22008-09-03 11:26:42 +08001067#define WLAN_HT_CAP_SM_PS_STATIC 0
1068#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1069#define WLAN_HT_CAP_SM_PS_INVALID 2
1070#define WLAN_HT_CAP_SM_PS_DISABLED 3
Tomas Winklere53cfe02008-01-30 22:05:13 -08001071
Johannes Berg0f782312009-12-01 13:37:02 +01001072/* for SM power control field lower two bits */
1073#define WLAN_HT_SMPS_CONTROL_DISABLED 0
1074#define WLAN_HT_SMPS_CONTROL_STATIC 1
1075#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1076
Mahesh Palivelae76cc0b2012-06-22 07:27:46 +00001077/**
1078 * struct ieee80211_vht_mcs_info - VHT MCS information
1079 * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1080 * @rx_highest: Indicates highest long GI VHT PPDU data rate
1081 * STA can receive. Rate expressed in units of 1 Mbps.
1082 * If this field is 0 this value should not be used to
1083 * consider the highest RX data rate supported.
1084 * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1085 * @tx_highest: Indicates highest long GI VHT PPDU data rate
1086 * STA can transmit. Rate expressed in units of 1 Mbps.
1087 * If this field is 0 this value should not be used to
1088 * consider the highest TX data rate supported.
1089 */
1090struct ieee80211_vht_mcs_info {
1091 __le16 rx_mcs_map;
1092 __le16 rx_highest;
1093 __le16 tx_mcs_map;
1094 __le16 tx_highest;
1095} __packed;
1096
Mahesh Palivela8d200ae2012-10-10 11:25:40 +00001097/**
1098 * struct ieee80211_vht_cap - VHT capabilities
1099 *
1100 * This structure is the "VHT capabilities element" as
1101 * described in 802.11ac D3.0 8.4.2.160
1102 * @vht_cap_info: VHT capability info
1103 * @supp_mcs: VHT MCS supported rates
1104 */
1105struct ieee80211_vht_cap {
1106 __le32 vht_cap_info;
1107 struct ieee80211_vht_mcs_info supp_mcs;
1108} __packed;
1109
1110/**
1111 * struct ieee80211_vht_operation - VHT operation IE
1112 *
1113 * This structure is the "VHT operation element" as
1114 * described in 802.11ac D3.0 8.4.2.161
1115 * @chan_width: Operating channel width
1116 * @center_freq_seg1_idx: center freq segment 1 index
1117 * @center_freq_seg2_idx: center freq segment 2 index
1118 * @basic_mcs_set: VHT Basic MCS rate set
1119 */
1120struct ieee80211_vht_operation {
1121 u8 chan_width;
1122 u8 center_freq_seg1_idx;
1123 u8 center_freq_seg2_idx;
1124 __le16 basic_mcs_set;
1125} __packed;
1126
1127
Mahesh Palivelae76cc0b2012-06-22 07:27:46 +00001128#define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
1129#define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
1130#define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT 2
1131#define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
1132
1133/* 802.11ac VHT Capabilities */
1134#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000
1135#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
1136#define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002
1137#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004
1138#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008
1139#define IEEE80211_VHT_CAP_RXLDPC 0x00000010
1140#define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020
1141#define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040
1142#define IEEE80211_VHT_CAP_TXSTBC 0x00000080
1143#define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100
1144#define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200
1145#define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300
1146#define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400
1147#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800
1148#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000
1149#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX 0x00006000
1150#define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX 0x00030000
1151#define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000
1152#define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000
1153#define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000
1154#define IEEE80211_VHT_CAP_HTC_VHT 0x00400000
1155#define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT 0x00800000
1156#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000
1157#define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000
1158#define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000
1159#define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000
1160
Jiri Benca9de8ce2007-05-05 11:43:04 -07001161/* Authentication algorithms */
1162#define WLAN_AUTH_OPEN 0
1163#define WLAN_AUTH_SHARED_KEY 1
Jouni Malinen636a5d32009-03-19 13:39:22 +02001164#define WLAN_AUTH_FT 2
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001165#define WLAN_AUTH_SAE 3
Senthil Balasubramanianbb608e92008-12-04 20:38:13 +05301166#define WLAN_AUTH_LEAP 128
Jiri Benca9de8ce2007-05-05 11:43:04 -07001167
1168#define WLAN_AUTH_CHALLENGE_LEN 128
1169
1170#define WLAN_CAPABILITY_ESS (1<<0)
1171#define WLAN_CAPABILITY_IBSS (1<<1)
Javier Cardona0a35d362011-05-04 10:24:56 -07001172
Eliad Peller333ba732011-05-29 15:53:20 +03001173/*
1174 * A mesh STA sets the ESS and IBSS capability bits to zero.
1175 * however, this holds true for p2p probe responses (in the p2p_find
1176 * phase) as well.
1177 */
1178#define WLAN_CAPABILITY_IS_STA_BSS(cap) \
Javier Cardona0a35d362011-05-04 10:24:56 -07001179 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1180
Jiri Benca9de8ce2007-05-05 11:43:04 -07001181#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
1182#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1183#define WLAN_CAPABILITY_PRIVACY (1<<4)
1184#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1185#define WLAN_CAPABILITY_PBCC (1<<6)
1186#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
Assaf Kraussb6623482008-06-16 16:09:49 +03001187
Jiri Benca9de8ce2007-05-05 11:43:04 -07001188/* 802.11h */
1189#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1190#define WLAN_CAPABILITY_QOS (1<<9)
1191#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1192#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
Assaf Kraussb6623482008-06-16 16:09:49 +03001193/* measurement */
1194#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1195#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1196#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1197
1198#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1199#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1200#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1201
Jiri Benca9de8ce2007-05-05 11:43:04 -07001202
Daniel Drake56282212007-07-10 19:32:10 +02001203/* 802.11g ERP information element */
1204#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1205#define WLAN_ERP_USE_PROTECTION (1<<1)
1206#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1207
1208/* WLAN_ERP_BARKER_PREAMBLE values */
1209enum {
1210 WLAN_ERP_PREAMBLE_SHORT = 0,
1211 WLAN_ERP_PREAMBLE_LONG = 1,
1212};
1213
Jiri Benca9de8ce2007-05-05 11:43:04 -07001214/* Status codes */
1215enum ieee80211_statuscode {
1216 WLAN_STATUS_SUCCESS = 0,
1217 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1218 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1219 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1220 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1221 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1222 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1223 WLAN_STATUS_CHALLENGE_FAIL = 15,
1224 WLAN_STATUS_AUTH_TIMEOUT = 16,
1225 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1226 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1227 /* 802.11b */
1228 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1229 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1230 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1231 /* 802.11h */
1232 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1233 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1234 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1235 /* 802.11g */
1236 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1237 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
Jouni Malinen63a5ab82009-01-08 13:32:09 +02001238 /* 802.11w */
1239 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1240 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001241 /* 802.11i */
1242 WLAN_STATUS_INVALID_IE = 40,
1243 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1244 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1245 WLAN_STATUS_INVALID_AKMP = 43,
1246 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1247 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1248 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001249 /* 802.11e */
1250 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1251 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1252 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1253 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1254 WLAN_STATUS_REQUEST_DECLINED = 37,
1255 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1256 WLAN_STATUS_CHANGE_TSPEC = 39,
1257 WLAN_STATUS_WAIT_TS_DELAY = 47,
1258 WLAN_STATUS_NO_DIRECT_LINK = 48,
1259 WLAN_STATUS_STA_NOT_PRESENT = 49,
1260 WLAN_STATUS_STA_NOT_QSTA = 50,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001261 /* 802.11s */
1262 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1263 WLAN_STATUS_FCG_NOT_SUPP = 78,
1264 WLAN_STATUS_STA_NO_TBTT = 78,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001265};
1266
1267
1268/* Reason codes */
1269enum ieee80211_reasoncode {
1270 WLAN_REASON_UNSPECIFIED = 1,
1271 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1272 WLAN_REASON_DEAUTH_LEAVING = 3,
1273 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1274 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1275 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1276 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1277 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1278 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1279 /* 802.11h */
1280 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1281 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1282 /* 802.11i */
1283 WLAN_REASON_INVALID_IE = 13,
1284 WLAN_REASON_MIC_FAILURE = 14,
1285 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1286 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1287 WLAN_REASON_IE_DIFFERENT = 17,
1288 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1289 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1290 WLAN_REASON_INVALID_AKMP = 20,
1291 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1292 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1293 WLAN_REASON_IEEE8021X_FAILED = 23,
1294 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001295 /* 802.11e */
1296 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1297 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1298 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1299 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1300 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1301 WLAN_REASON_QSTA_NOT_USE = 37,
1302 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1303 WLAN_REASON_QSTA_TIMEOUT = 39,
1304 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001305 /* 802.11s */
1306 WLAN_REASON_MESH_PEER_CANCELED = 52,
1307 WLAN_REASON_MESH_MAX_PEERS = 53,
1308 WLAN_REASON_MESH_CONFIG = 54,
1309 WLAN_REASON_MESH_CLOSE = 55,
1310 WLAN_REASON_MESH_MAX_RETRIES = 56,
1311 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1312 WLAN_REASON_MESH_INVALID_GTK = 58,
1313 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1314 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1315 WLAN_REASON_MESH_PATH_ERROR = 61,
1316 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1317 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1318 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1319 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1320 WLAN_REASON_MESH_CHAN = 66,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001321};
1322
1323
1324/* Information Element IDs */
1325enum ieee80211_eid {
1326 WLAN_EID_SSID = 0,
1327 WLAN_EID_SUPP_RATES = 1,
1328 WLAN_EID_FH_PARAMS = 2,
1329 WLAN_EID_DS_PARAMS = 3,
1330 WLAN_EID_CF_PARAMS = 4,
1331 WLAN_EID_TIM = 5,
1332 WLAN_EID_IBSS_PARAMS = 6,
1333 WLAN_EID_CHALLENGE = 16,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001334
Jiri Benca9de8ce2007-05-05 11:43:04 -07001335 WLAN_EID_COUNTRY = 7,
1336 WLAN_EID_HP_PARAMS = 8,
1337 WLAN_EID_HP_TABLE = 9,
1338 WLAN_EID_REQUEST = 10,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001339
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001340 WLAN_EID_QBSS_LOAD = 11,
1341 WLAN_EID_EDCA_PARAM_SET = 12,
1342 WLAN_EID_TSPEC = 13,
1343 WLAN_EID_TCLAS = 14,
1344 WLAN_EID_SCHEDULE = 15,
1345 WLAN_EID_TS_DELAY = 43,
1346 WLAN_EID_TCLAS_PROCESSING = 44,
1347 WLAN_EID_QOS_CAPA = 46,
Arik Nemtsovdfe018b2011-09-28 14:12:52 +03001348 /* 802.11z */
1349 WLAN_EID_LINK_ID = 101,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001350 /* 802.11s */
1351 WLAN_EID_MESH_CONFIG = 113,
1352 WLAN_EID_MESH_ID = 114,
1353 WLAN_EID_LINK_METRIC_REPORT = 115,
1354 WLAN_EID_CONGESTION_NOTIFICATION = 116,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001355 WLAN_EID_PEER_MGMT = 117,
1356 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1357 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1358 WLAN_EID_BEACON_TIMING = 120,
1359 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1360 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1361 WLAN_EID_MCCAOP_ADVERT = 123,
1362 WLAN_EID_MCCAOP_TEARDOWN = 124,
1363 WLAN_EID_GANN = 125,
1364 WLAN_EID_RANN = 126,
1365 WLAN_EID_PREQ = 130,
1366 WLAN_EID_PREP = 131,
1367 WLAN_EID_PERR = 132,
1368 WLAN_EID_PXU = 137,
1369 WLAN_EID_PXUC = 138,
1370 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1371 WLAN_EID_MIC = 140,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001372
Jiri Benca9de8ce2007-05-05 11:43:04 -07001373 WLAN_EID_PWR_CONSTRAINT = 32,
1374 WLAN_EID_PWR_CAPABILITY = 33,
1375 WLAN_EID_TPC_REQUEST = 34,
1376 WLAN_EID_TPC_REPORT = 35,
1377 WLAN_EID_SUPPORTED_CHANNELS = 36,
1378 WLAN_EID_CHANNEL_SWITCH = 37,
1379 WLAN_EID_MEASURE_REQUEST = 38,
1380 WLAN_EID_MEASURE_REPORT = 39,
1381 WLAN_EID_QUIET = 40,
1382 WLAN_EID_IBSS_DFS = 41,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001383
Jiri Benca9de8ce2007-05-05 11:43:04 -07001384 WLAN_EID_ERP_INFO = 42,
1385 WLAN_EID_EXT_SUPP_RATES = 50,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001386
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001387 WLAN_EID_HT_CAPABILITY = 45,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001388 WLAN_EID_HT_INFORMATION = 61,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001389
Jiri Benca9de8ce2007-05-05 11:43:04 -07001390 WLAN_EID_RSN = 48,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001391 WLAN_EID_MMIE = 76,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001392 WLAN_EID_WPA = 221,
1393 WLAN_EID_GENERIC = 221,
1394 WLAN_EID_VENDOR_SPECIFIC = 221,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001395 WLAN_EID_QOS_PARAMETER = 222,
1396
1397 WLAN_EID_AP_CHAN_REPORT = 51,
1398 WLAN_EID_NEIGHBOR_REPORT = 52,
1399 WLAN_EID_RCPI = 53,
1400 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1401 WLAN_EID_ANTENNA_INFO = 64,
1402 WLAN_EID_RSNI = 65,
1403 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1404 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1405 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1406 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1407 WLAN_EID_MULTIPLE_BSSID = 71,
Amitkumar Karwarb7e89412010-12-07 13:43:03 -08001408 WLAN_EID_BSS_COEX_2040 = 72,
1409 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1410 WLAN_EID_EXT_CAPABILITY = 127,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001411
1412 WLAN_EID_MOBILITY_DOMAIN = 54,
1413 WLAN_EID_FAST_BSS_TRANSITION = 55,
1414 WLAN_EID_TIMEOUT_INTERVAL = 56,
1415 WLAN_EID_RIC_DATA = 57,
1416 WLAN_EID_RIC_DESCRIPTOR = 75,
1417
1418 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1419 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1420 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
Mahesh Palivelae76cc0b2012-06-22 07:27:46 +00001421
1422 WLAN_EID_VHT_CAPABILITY = 191,
1423 WLAN_EID_VHT_OPERATION = 192,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001424};
1425
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001426/* Action category code */
1427enum ieee80211_category {
1428 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1429 WLAN_CATEGORY_QOS = 1,
1430 WLAN_CATEGORY_DLS = 2,
1431 WLAN_CATEGORY_BACK = 3,
Jouni Malinenfb733332009-01-08 13:32:00 +02001432 WLAN_CATEGORY_PUBLIC = 4,
Jouni Malinen528769c2009-05-11 10:20:35 +03001433 WLAN_CATEGORY_HT = 7,
Jouni Malinenfea14732009-01-08 13:32:06 +02001434 WLAN_CATEGORY_SA_QUERY = 8,
Jouni Malinen528769c2009-05-11 10:20:35 +03001435 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
Arik Nemtsovdfe018b2011-09-28 14:12:52 +03001436 WLAN_CATEGORY_TDLS = 12,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001437 WLAN_CATEGORY_MESH_ACTION = 13,
1438 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1439 WLAN_CATEGORY_SELF_PROTECTED = 15,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001440 WLAN_CATEGORY_WMM = 17,
Jouni Malinen528769c2009-05-11 10:20:35 +03001441 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1442 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001443};
1444
Assaf Kraussf2df3852008-06-15 18:23:29 +03001445/* SPECTRUM_MGMT action code */
1446enum ieee80211_spectrum_mgmt_actioncode {
1447 WLAN_ACTION_SPCT_MSR_REQ = 0,
1448 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1449 WLAN_ACTION_SPCT_TPC_REQ = 2,
1450 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1451 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1452};
1453
Johannes Berg0f782312009-12-01 13:37:02 +01001454/* HT action codes */
1455enum ieee80211_ht_actioncode {
1456 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1457 WLAN_HT_ACTION_SMPS = 1,
1458 WLAN_HT_ACTION_PSMP = 2,
1459 WLAN_HT_ACTION_PCO_PHASE = 3,
1460 WLAN_HT_ACTION_CSI = 4,
1461 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1462 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1463 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1464};
1465
Thomas Pedersen6709a6d2011-08-11 19:35:11 -07001466/* Self Protected Action codes */
1467enum ieee80211_self_protected_actioncode {
1468 WLAN_SP_RESERVED = 0,
1469 WLAN_SP_MESH_PEERING_OPEN = 1,
1470 WLAN_SP_MESH_PEERING_CONFIRM = 2,
1471 WLAN_SP_MESH_PEERING_CLOSE = 3,
1472 WLAN_SP_MGK_INFORM = 4,
1473 WLAN_SP_MGK_ACK = 5,
1474};
1475
Thomas Pedersen36c704f2011-08-11 19:35:14 -07001476/* Mesh action codes */
1477enum ieee80211_mesh_actioncode {
1478 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1479 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1480 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1481 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1482 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1483 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1484 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1485 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1486 WLAN_MESH_ACTION_MCCA_TEARDOWN,
1487 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1488 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1489};
1490
Zhu Yie31a16d2009-05-21 21:47:03 +08001491/* Security key length */
1492enum ieee80211_key_len {
1493 WLAN_KEY_LEN_WEP40 = 5,
1494 WLAN_KEY_LEN_WEP104 = 13,
1495 WLAN_KEY_LEN_CCMP = 16,
1496 WLAN_KEY_LEN_TKIP = 32,
Johannes Berg8fc0fee2009-05-24 16:57:19 +02001497 WLAN_KEY_LEN_AES_CMAC = 16,
Deepthi Gowri5b26a952011-11-29 11:22:42 +05301498 WLAN_KEY_LEN_WAPI_SMS4 = 32,
Zhu Yie31a16d2009-05-21 21:47:03 +08001499};
1500
Arik Nemtsovdfe018b2011-09-28 14:12:52 +03001501/* Public action codes */
1502enum ieee80211_pub_actioncode {
1503 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1504};
1505
1506/* TDLS action codes */
1507enum ieee80211_tdls_actioncode {
1508 WLAN_TDLS_SETUP_REQUEST = 0,
1509 WLAN_TDLS_SETUP_RESPONSE = 1,
1510 WLAN_TDLS_SETUP_CONFIRM = 2,
1511 WLAN_TDLS_TEARDOWN = 3,
1512 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1513 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1514 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1515 WLAN_TDLS_PEER_PSM_REQUEST = 7,
1516 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1517 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1518 WLAN_TDLS_DISCOVERY_REQUEST = 10,
1519};
1520
1521/*
1522 * TDLS capabililites to be enabled in the 5th byte of the
1523 * @WLAN_EID_EXT_CAPABILITY information element
1524 */
1525#define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
1526#define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
1527
1528/* TDLS specific payload type in the LLC/SNAP header */
1529#define WLAN_TDLS_SNAP_RFTYPE 0x2
1530
Javier Cardonac80d5452010-12-16 17:37:49 -08001531/**
1532 * enum - mesh path selection protocol identifier
1533 *
1534 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1535 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1536 * be specified in a vendor specific information element
1537 */
1538enum {
1539 IEEE80211_PATH_PROTOCOL_HWMP = 0,
1540 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1541};
1542
1543/**
1544 * enum - mesh path selection metric identifier
1545 *
1546 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1547 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1548 * specified in a vendor specific information element
1549 */
1550enum {
1551 IEEE80211_PATH_METRIC_AIRTIME = 0,
1552 IEEE80211_PATH_METRIC_VENDOR = 255,
1553};
1554
1555
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -08001556/*
1557 * IEEE 802.11-2007 7.3.2.9 Country information element
1558 *
1559 * Minimum length is 8 octets, ie len must be evenly
1560 * divisible by 2
1561 */
1562
1563/* Although the spec says 8 I'm seeing 6 in practice */
1564#define IEEE80211_COUNTRY_IE_MIN_LEN 6
1565
Bing Zhao80751e22011-03-07 11:14:23 -08001566/* The Country String field of the element shall be 3 octets in length */
1567#define IEEE80211_COUNTRY_STRING_LEN 3
1568
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -08001569/*
1570 * For regulatory extension stuff see IEEE 802.11-2007
1571 * Annex I (page 1141) and Annex J (page 1147). Also
1572 * review 7.3.2.9.
1573 *
1574 * When dot11RegulatoryClassesRequired is true and the
1575 * first_channel/reg_extension_id is >= 201 then the IE
1576 * compromises of the 'ext' struct represented below:
1577 *
1578 * - Regulatory extension ID - when generating IE this just needs
1579 * to be monotonically increasing for each triplet passed in
1580 * the IE
1581 * - Regulatory class - index into set of rules
1582 * - Coverage class - index into air propagation time (Table 7-27),
1583 * in microseconds, you can compute the air propagation time from
1584 * the index by multiplying by 3, so index 10 yields a propagation
1585 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1586 * yet. A value of 0 inicates air propagation of <= 1 us.
1587 *
1588 * See also Table I.2 for Emission limit sets and table
1589 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1590 * a reg_class to an emission limit set and behavior limit set.
1591 */
1592#define IEEE80211_COUNTRY_EXTENSION_ID 201
1593
1594/*
1595 * Channels numbers in the IE must be monotonically increasing
1596 * if dot11RegulatoryClassesRequired is not true.
1597 *
1598 * If dot11RegulatoryClassesRequired is true consecutive
1599 * subband triplets following a regulatory triplet shall
1600 * have monotonically increasing first_channel number fields.
1601 *
1602 * Channel numbers shall not overlap.
1603 *
1604 * Note that max_power is signed.
1605 */
1606struct ieee80211_country_ie_triplet {
1607 union {
1608 struct {
1609 u8 first_channel;
1610 u8 num_channels;
1611 s8 max_power;
1612 } __attribute__ ((packed)) chans;
1613 struct {
1614 u8 reg_extension_id;
1615 u8 reg_class;
1616 u8 coverage_class;
1617 } __attribute__ ((packed)) ext;
1618 };
1619} __attribute__ ((packed));
1620
Jouni Malinenf797eb72009-01-19 18:48:46 +02001621enum ieee80211_timeout_interval_type {
1622 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1623 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1624 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1625};
1626
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001627/* BACK action code */
1628enum ieee80211_back_actioncode {
1629 WLAN_ACTION_ADDBA_REQ = 0,
1630 WLAN_ACTION_ADDBA_RESP = 1,
1631 WLAN_ACTION_DELBA = 2,
1632};
1633
Ron Rindjunsky07db2182007-12-25 17:00:33 +02001634/* BACK (block-ack) parties */
1635enum ieee80211_back_parties {
1636 WLAN_BACK_RECIPIENT = 0,
1637 WLAN_BACK_INITIATOR = 1,
Ron Rindjunsky07db2182007-12-25 17:00:33 +02001638};
1639
Jouni Malinenfea14732009-01-08 13:32:06 +02001640/* SA Query action */
1641enum ieee80211_sa_query_action {
1642 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1643 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1644};
1645
1646
Jiri Benca9de8ce2007-05-05 11:43:04 -07001647/* cipher suite selectors */
1648#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1649#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1650#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1651/* reserved: 0x000FAC03 */
1652#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1653#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
Jouni Malinen3cfcf6a2009-01-08 13:32:02 +02001654#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
Deepthi Gowri5b26a952011-11-29 11:22:42 +05301655#define WLAN_CIPHER_SUITE_SMS4 0x00147201
Jiri Benca9de8ce2007-05-05 11:43:04 -07001656
Jouni Malinenc2e889a2011-11-02 23:34:56 +02001657#define WLAN_CIPHER_SUITE_SMS4 0x00147201
1658
Johannes Berg6a669e62009-07-01 21:26:53 +02001659/* AKM suite selectors */
1660#define WLAN_AKM_SUITE_8021X 0x000FAC01
1661#define WLAN_AKM_SUITE_PSK 0x000FAC02
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001662#define WLAN_AKM_SUITE_SAE 0x000FAC08
1663#define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
Johannes Berg6a669e62009-07-01 21:26:53 +02001664
Jiri Benca9de8ce2007-05-05 11:43:04 -07001665#define WLAN_MAX_KEY_LEN 32
1666
Samuel Ortiz67fbb162009-11-24 23:59:15 +01001667#define WLAN_PMKID_LEN 16
1668
Eliad Peller0c28ec52011-09-15 11:53:01 +03001669#define WLAN_OUI_WFA 0x506f9a
1670#define WLAN_OUI_TYPE_WFA_P2P 9
1671
Kalle Valo856799d2011-07-17 12:13:56 +03001672/*
1673 * WMM/802.11e Tspec Element
1674 */
1675#define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
1676#define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
1677
1678enum ieee80211_tspec_status_code {
1679 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1680 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1681};
1682
1683struct ieee80211_tspec_ie {
1684 u8 element_id;
1685 u8 len;
1686 u8 oui[3];
1687 u8 oui_type;
1688 u8 oui_subtype;
1689 u8 version;
1690 __le16 tsinfo;
1691 u8 tsinfo_resvd;
1692 __le16 nominal_msdu;
1693 __le16 max_msdu;
1694 __le32 min_service_int;
1695 __le32 max_service_int;
1696 __le32 inactivity_int;
1697 __le32 suspension_int;
1698 __le32 service_start_time;
1699 __le32 min_data_rate;
1700 __le32 mean_data_rate;
1701 __le32 peak_data_rate;
1702 __le32 max_burst_size;
1703 __le32 delay_bound;
1704 __le32 min_phy_rate;
1705 __le16 sba;
1706 __le16 medium_time;
1707} __packed;
1708
Johannes Bergf97df022007-09-18 17:29:20 -04001709/**
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001710 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1711 * @hdr: the frame
1712 *
1713 * The qos ctrl bytes come after the frame_control, duration, seq_num
1714 * and 3 or 4 addresses of length ETH_ALEN.
1715 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1716 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1717 */
1718static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1719{
1720 if (ieee80211_has_a4(hdr->frame_control))
1721 return (u8 *)hdr + 30;
1722 else
1723 return (u8 *)hdr + 24;
1724}
1725
1726/**
Johannes Bergf97df022007-09-18 17:29:20 -04001727 * ieee80211_get_SA - get pointer to SA
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001728 * @hdr: the frame
Johannes Bergf97df022007-09-18 17:29:20 -04001729 *
1730 * Given an 802.11 frame, this function returns the offset
1731 * to the source address (SA). It does not verify that the
1732 * header is long enough to contain the address, and the
1733 * header must be long enough to contain the frame control
1734 * field.
Johannes Bergf97df022007-09-18 17:29:20 -04001735 */
1736static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1737{
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001738 if (ieee80211_has_a4(hdr->frame_control))
Harvey Harrison5a433b32008-04-21 10:41:10 -07001739 return hdr->addr4;
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001740 if (ieee80211_has_fromds(hdr->frame_control))
1741 return hdr->addr3;
1742 return hdr->addr2;
Johannes Bergf97df022007-09-18 17:29:20 -04001743}
1744
1745/**
1746 * ieee80211_get_DA - get pointer to DA
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001747 * @hdr: the frame
Johannes Bergf97df022007-09-18 17:29:20 -04001748 *
1749 * Given an 802.11 frame, this function returns the offset
1750 * to the destination address (DA). It does not verify that
1751 * the header is long enough to contain the address, and the
1752 * header must be long enough to contain the frame control
1753 * field.
Johannes Bergf97df022007-09-18 17:29:20 -04001754 */
1755static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1756{
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001757 if (ieee80211_has_tods(hdr->frame_control))
Johannes Bergf97df022007-09-18 17:29:20 -04001758 return hdr->addr3;
Harvey Harrison5a433b32008-04-21 10:41:10 -07001759 else
1760 return hdr->addr1;
Johannes Bergf97df022007-09-18 17:29:20 -04001761}
1762
David Kilroy9ee677c2008-12-23 14:03:38 +00001763/**
Jouni Malinenfb733332009-01-08 13:32:00 +02001764 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1765 * @hdr: the frame (buffer must include at least the first octet of payload)
1766 */
1767static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1768{
1769 if (ieee80211_is_disassoc(hdr->frame_control) ||
1770 ieee80211_is_deauth(hdr->frame_control))
1771 return true;
1772
1773 if (ieee80211_is_action(hdr->frame_control)) {
1774 u8 *category;
1775
1776 /*
1777 * Action frames, excluding Public Action frames, are Robust
1778 * Management Frames. However, if we are looking at a Protected
1779 * frame, skip the check since the data may be encrypted and
1780 * the frame has already been found to be a Robust Management
1781 * Frame (by the other end).
1782 */
1783 if (ieee80211_has_protected(hdr->frame_control))
1784 return true;
1785 category = ((u8 *) hdr) + 24;
Jouni Malinen528769c2009-05-11 10:20:35 +03001786 return *category != WLAN_CATEGORY_PUBLIC &&
1787 *category != WLAN_CATEGORY_HT &&
Thomas Pedersen8f9cb772011-05-03 16:57:14 -07001788 *category != WLAN_CATEGORY_SELF_PROTECTED &&
Jouni Malinen528769c2009-05-11 10:20:35 +03001789 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
Jouni Malinenfb733332009-01-08 13:32:00 +02001790 }
1791
1792 return false;
1793}
1794
1795/**
Johannes Berg3df6eae2011-12-06 10:39:40 +01001796 * ieee80211_is_public_action - check if frame is a public action frame
1797 * @hdr: the frame
1798 * @len: length of the frame
1799 */
1800static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
1801 size_t len)
1802{
1803 struct ieee80211_mgmt *mgmt = (void *)hdr;
1804
1805 if (len < IEEE80211_MIN_ACTION_SIZE)
1806 return false;
1807 if (!ieee80211_is_action(hdr->frame_control))
1808 return false;
1809 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
1810}
1811
1812/**
David Kilroy9ee677c2008-12-23 14:03:38 +00001813 * ieee80211_fhss_chan_to_freq - get channel frequency
1814 * @channel: the FHSS channel
1815 *
1816 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1817 * Ref IEEE 802.11-2007 section 14.6
1818 */
1819static inline int ieee80211_fhss_chan_to_freq(int channel)
1820{
1821 if ((channel > 1) && (channel < 96))
1822 return channel + 2400;
1823 else
1824 return -1;
1825}
1826
1827/**
1828 * ieee80211_freq_to_fhss_chan - get channel
1829 * @freq: the channels frequency
1830 *
1831 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1832 * Ref IEEE 802.11-2007 section 14.6
1833 */
1834static inline int ieee80211_freq_to_fhss_chan(int freq)
1835{
1836 if ((freq > 2401) && (freq < 2496))
1837 return freq - 2400;
1838 else
1839 return -1;
1840}
1841
1842/**
1843 * ieee80211_dsss_chan_to_freq - get channel center frequency
1844 * @channel: the DSSS channel
1845 *
1846 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1847 * Ref IEEE 802.11-2007 section 15.6
1848 */
1849static inline int ieee80211_dsss_chan_to_freq(int channel)
1850{
1851 if ((channel > 0) && (channel < 14))
1852 return 2407 + (channel * 5);
1853 else if (channel == 14)
1854 return 2484;
1855 else
1856 return -1;
1857}
1858
1859/**
1860 * ieee80211_freq_to_dsss_chan - get channel
1861 * @freq: the frequency
1862 *
1863 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1864 * Ref IEEE 802.11-2007 section 15.6
1865 *
1866 * This routine selects the channel with the closest center frequency.
1867 */
1868static inline int ieee80211_freq_to_dsss_chan(int freq)
1869{
1870 if ((freq >= 2410) && (freq < 2475))
1871 return (freq - 2405) / 5;
1872 else if ((freq >= 2482) && (freq < 2487))
1873 return 14;
1874 else
1875 return -1;
1876}
1877
1878/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1879 * Ref IEEE 802.11-2007 section 18.4.6.2
1880 *
1881 * The channels and frequencies are the same as those defined for DSSS
1882 */
1883#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1884#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1885
1886/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1887 * Ref IEEE 802.11-2007 section 19.4.2
1888 */
1889#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1890#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1891
1892/**
1893 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1894 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1895 * @channel: the OFDM channel
1896 *
1897 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1898 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1899 */
1900static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1901{
1902 if ((channel > 0) && (channel <= 200) &&
1903 (s_freq >= 4000))
1904 return s_freq + (channel * 5);
1905 else
1906 return -1;
1907}
1908
1909/**
1910 * ieee80211_freq_to_ofdm_channel - get channel
1911 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1912 * @freq: the frequency
1913 *
1914 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1915 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1916 *
1917 * This routine selects the channel with the closest center frequency.
1918 */
1919static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1920{
1921 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1922 (s_freq >= 4000))
1923 return (freq + 2 - s_freq) / 5;
1924 else
1925 return -1;
1926}
1927
Johannes Berg10f644a2009-04-16 13:17:25 +02001928/**
1929 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1930 * @tu: the TUs
1931 */
1932static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1933{
1934 return 1024 * tu;
1935}
1936
Johannes Berge7ec86f2009-04-18 17:33:24 +02001937/**
1938 * ieee80211_check_tim - check if AID bit is set in TIM
1939 * @tim: the TIM IE
1940 * @tim_len: length of the TIM IE
1941 * @aid: the AID to look for
1942 */
1943static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1944 u8 tim_len, u16 aid)
1945{
1946 u8 mask;
1947 u8 index, indexn1, indexn2;
1948
1949 if (unlikely(!tim || tim_len < sizeof(*tim)))
1950 return false;
1951
1952 aid &= 0x3fff;
1953 index = aid / 8;
1954 mask = 1 << (aid & 7);
1955
1956 indexn1 = tim->bitmap_ctrl & 0xfe;
1957 indexn2 = tim_len + indexn1 - 4;
1958
1959 if (index < indexn1 || index > indexn2)
1960 return false;
1961
1962 index -= indexn1;
1963
1964 return !!(tim->virtual_map[index] & mask);
1965}
1966
John W. Linville9387b7c2008-09-30 20:59:05 -04001967#endif /* LINUX_IEEE80211_H */