blob: ed5a03cbe184eba3c77799d164d5e8b9b77c0780 [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
Harvey Harrison238f74a2008-07-02 11:05:34 -0700120#define IEEE80211_QOS_CTL_TID_MASK 0x000F
121#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
Jiri Benca9de8ce2007-05-05 11:43:04 -0700122
Kalle Valoab133152010-01-12 10:42:31 +0200123/* U-APSD queue for WMM IEs sent by AP */
124#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
125
126/* U-APSD queues for WMM IEs sent by STA */
127#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
128#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
129#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
130#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
131#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
132
133/* U-APSD max SP length for WMM IEs sent by STA */
134#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
135#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
136#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
137#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
138#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
139#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
140
Andriy Tkachukd0dd2de2010-01-20 13:55:06 +0200141#define IEEE80211_HT_CTL_LEN 4
142
Jiri Benca9de8ce2007-05-05 11:43:04 -0700143struct ieee80211_hdr {
144 __le16 frame_control;
145 __le16 duration_id;
146 u8 addr1[6];
147 u8 addr2[6];
148 u8 addr3[6];
149 __le16 seq_ctrl;
150 u8 addr4[6];
151} __attribute__ ((packed));
152
Kalle Valo7044cc52010-01-05 20:16:19 +0200153struct ieee80211_hdr_3addr {
154 __le16 frame_control;
155 __le16 duration_id;
156 u8 addr1[6];
157 u8 addr2[6];
158 u8 addr3[6];
159 __le16 seq_ctrl;
160} __attribute__ ((packed));
161
Kalle Valo558a6662010-01-12 10:43:00 +0200162struct ieee80211_qos_hdr {
163 __le16 frame_control;
164 __le16 duration_id;
165 u8 addr1[6];
166 u8 addr2[6];
167 u8 addr3[6];
168 __le16 seq_ctrl;
169 __le16 qos_ctrl;
170} __attribute__ ((packed));
171
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700172/**
173 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
174 * @fc: frame control bytes in little-endian byteorder
175 */
176static inline int ieee80211_has_tods(__le16 fc)
177{
178 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
179}
180
181/**
182 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
183 * @fc: frame control bytes in little-endian byteorder
184 */
185static inline int ieee80211_has_fromds(__le16 fc)
186{
187 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
188}
189
190/**
191 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
192 * @fc: frame control bytes in little-endian byteorder
193 */
194static inline int ieee80211_has_a4(__le16 fc)
195{
196 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
197 return (fc & tmp) == tmp;
198}
199
200/**
201 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
202 * @fc: frame control bytes in little-endian byteorder
203 */
204static inline int ieee80211_has_morefrags(__le16 fc)
205{
206 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
207}
208
209/**
210 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
211 * @fc: frame control bytes in little-endian byteorder
212 */
213static inline int ieee80211_has_retry(__le16 fc)
214{
215 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
216}
217
218/**
219 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
220 * @fc: frame control bytes in little-endian byteorder
221 */
222static inline int ieee80211_has_pm(__le16 fc)
223{
224 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
225}
226
227/**
228 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
229 * @fc: frame control bytes in little-endian byteorder
230 */
231static inline int ieee80211_has_moredata(__le16 fc)
232{
233 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
234}
235
236/**
237 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
238 * @fc: frame control bytes in little-endian byteorder
239 */
240static inline int ieee80211_has_protected(__le16 fc)
241{
242 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
243}
244
245/**
246 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
247 * @fc: frame control bytes in little-endian byteorder
248 */
249static inline int ieee80211_has_order(__le16 fc)
250{
251 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
252}
253
254/**
255 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
256 * @fc: frame control bytes in little-endian byteorder
257 */
258static inline int ieee80211_is_mgmt(__le16 fc)
259{
260 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
261 cpu_to_le16(IEEE80211_FTYPE_MGMT);
262}
263
264/**
265 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
266 * @fc: frame control bytes in little-endian byteorder
267 */
268static inline int ieee80211_is_ctl(__le16 fc)
269{
270 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
271 cpu_to_le16(IEEE80211_FTYPE_CTL);
272}
273
274/**
275 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
276 * @fc: frame control bytes in little-endian byteorder
277 */
278static inline int ieee80211_is_data(__le16 fc)
279{
280 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
281 cpu_to_le16(IEEE80211_FTYPE_DATA);
282}
283
284/**
285 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
286 * @fc: frame control bytes in little-endian byteorder
287 */
288static inline int ieee80211_is_data_qos(__le16 fc)
289{
290 /*
291 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
292 * to check the one bit
293 */
294 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
295 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
296}
297
298/**
299 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
300 * @fc: frame control bytes in little-endian byteorder
301 */
302static inline int ieee80211_is_data_present(__le16 fc)
303{
304 /*
305 * mask with 0x40 and test that that bit is clear to only return true
306 * for the data-containing substypes.
307 */
308 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
309 cpu_to_le16(IEEE80211_FTYPE_DATA);
310}
311
312/**
313 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
314 * @fc: frame control bytes in little-endian byteorder
315 */
316static inline int ieee80211_is_assoc_req(__le16 fc)
317{
318 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
319 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
320}
321
322/**
323 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
324 * @fc: frame control bytes in little-endian byteorder
325 */
326static inline int ieee80211_is_assoc_resp(__le16 fc)
327{
328 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
329 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
330}
331
332/**
333 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
334 * @fc: frame control bytes in little-endian byteorder
335 */
336static inline int ieee80211_is_reassoc_req(__le16 fc)
337{
338 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
339 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
340}
341
342/**
343 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
344 * @fc: frame control bytes in little-endian byteorder
345 */
346static inline int ieee80211_is_reassoc_resp(__le16 fc)
347{
348 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
349 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
350}
351
352/**
353 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
354 * @fc: frame control bytes in little-endian byteorder
355 */
356static inline int ieee80211_is_probe_req(__le16 fc)
357{
358 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
359 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
360}
361
362/**
363 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
364 * @fc: frame control bytes in little-endian byteorder
365 */
366static inline int ieee80211_is_probe_resp(__le16 fc)
367{
368 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
369 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
370}
371
372/**
373 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
374 * @fc: frame control bytes in little-endian byteorder
375 */
376static inline int ieee80211_is_beacon(__le16 fc)
377{
378 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
379 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
380}
381
382/**
383 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
384 * @fc: frame control bytes in little-endian byteorder
385 */
386static inline int ieee80211_is_atim(__le16 fc)
387{
388 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
389 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
390}
391
392/**
393 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
394 * @fc: frame control bytes in little-endian byteorder
395 */
396static inline int ieee80211_is_disassoc(__le16 fc)
397{
398 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
399 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
400}
401
402/**
403 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
404 * @fc: frame control bytes in little-endian byteorder
405 */
406static inline int ieee80211_is_auth(__le16 fc)
407{
408 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
409 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
410}
411
412/**
413 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
414 * @fc: frame control bytes in little-endian byteorder
415 */
416static inline int ieee80211_is_deauth(__le16 fc)
417{
418 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
419 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
420}
421
422/**
423 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
424 * @fc: frame control bytes in little-endian byteorder
425 */
426static inline int ieee80211_is_action(__le16 fc)
427{
428 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
429 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
430}
431
432/**
433 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
434 * @fc: frame control bytes in little-endian byteorder
435 */
436static inline int ieee80211_is_back_req(__le16 fc)
437{
438 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
439 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
440}
441
442/**
443 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
444 * @fc: frame control bytes in little-endian byteorder
445 */
446static inline int ieee80211_is_back(__le16 fc)
447{
448 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
449 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
450}
451
452/**
453 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
454 * @fc: frame control bytes in little-endian byteorder
455 */
456static inline int ieee80211_is_pspoll(__le16 fc)
457{
458 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
459 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
460}
461
462/**
463 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
464 * @fc: frame control bytes in little-endian byteorder
465 */
466static inline int ieee80211_is_rts(__le16 fc)
467{
468 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
469 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
470}
471
472/**
473 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
474 * @fc: frame control bytes in little-endian byteorder
475 */
476static inline int ieee80211_is_cts(__le16 fc)
477{
478 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
479 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
480}
481
482/**
483 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
484 * @fc: frame control bytes in little-endian byteorder
485 */
486static inline int ieee80211_is_ack(__le16 fc)
487{
488 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
489 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
490}
491
492/**
493 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
494 * @fc: frame control bytes in little-endian byteorder
495 */
496static inline int ieee80211_is_cfend(__le16 fc)
497{
498 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
499 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
500}
501
502/**
503 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
504 * @fc: frame control bytes in little-endian byteorder
505 */
506static inline int ieee80211_is_cfendack(__le16 fc)
507{
508 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
509 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
510}
511
512/**
Johannes Berg22403de2009-10-30 12:55:03 +0100513 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -0700514 * @fc: frame control bytes in little-endian byteorder
515 */
516static inline int ieee80211_is_nullfunc(__le16 fc)
517{
518 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
519 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
520}
Jiri Benca9de8ce2007-05-05 11:43:04 -0700521
Johannes Berg22403de2009-10-30 12:55:03 +0100522/**
523 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
524 * @fc: frame control bytes in little-endian byteorder
525 */
526static inline int ieee80211_is_qos_nullfunc(__le16 fc)
527{
528 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
529 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
530}
531
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100532struct ieee80211s_hdr {
533 u8 flags;
534 u8 ttl;
Luis Carlos Cobo51cedda2008-04-23 12:15:29 -0700535 __le32 seqnum;
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100536 u8 eaddr1[6];
537 u8 eaddr2[6];
538 u8 eaddr3[6];
539} __attribute__ ((packed));
540
YanBo79617de2008-09-22 13:30:32 +0800541/* Mesh flags */
542#define MESH_FLAGS_AE_A4 0x1
543#define MESH_FLAGS_AE_A5_A6 0x2
Zhu Yie31a16d2009-05-21 21:47:03 +0800544#define MESH_FLAGS_AE 0x3
YanBo79617de2008-09-22 13:30:32 +0800545#define MESH_FLAGS_PS_DEEP 0x4
546
Assaf Kraussf2df3852008-06-15 18:23:29 +0300547/**
548 * struct ieee80211_quiet_ie
549 *
550 * This structure refers to "Quiet information element"
551 */
552struct ieee80211_quiet_ie {
553 u8 count;
554 u8 period;
555 __le16 duration;
556 __le16 offset;
557} __attribute__ ((packed));
558
559/**
560 * struct ieee80211_msrment_ie
561 *
562 * This structure refers to "Measurement Request/Report information element"
563 */
564struct ieee80211_msrment_ie {
565 u8 token;
566 u8 mode;
567 u8 type;
568 u8 request[0];
569} __attribute__ ((packed));
570
571/**
572 * struct ieee80211_channel_sw_ie
573 *
574 * This structure refers to "Channel Switch Announcement information element"
575 */
576struct ieee80211_channel_sw_ie {
577 u8 mode;
578 u8 new_ch_num;
579 u8 count;
580} __attribute__ ((packed));
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100581
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +0800582/**
583 * struct ieee80211_tim
584 *
585 * This structure refers to "Traffic Indication Map information element"
586 */
587struct ieee80211_tim_ie {
588 u8 dtim_count;
589 u8 dtim_period;
590 u8 bitmap_ctrl;
591 /* variable size: 1 - 251 bytes */
Johannes Berge7ec86f2009-04-18 17:33:24 +0200592 u8 virtual_map[1];
Emmanuel Grumbach98f7dfd2008-07-18 13:52:59 +0800593} __attribute__ ((packed));
594
Rui Paulo90a5e162009-11-11 00:01:31 +0000595/**
Rui Paulo136cfa22009-11-18 18:40:00 +0000596 * struct ieee80211_meshconf_ie
597 *
598 * This structure refers to "Mesh Configuration information element"
599 */
600struct ieee80211_meshconf_ie {
601 u8 meshconf_psel;
602 u8 meshconf_pmetric;
603 u8 meshconf_congest;
604 u8 meshconf_synch;
605 u8 meshconf_auth;
606 u8 meshconf_form;
607 u8 meshconf_cap;
608} __attribute__ ((packed));
609
610/**
Rui Paulo90a5e162009-11-11 00:01:31 +0000611 * struct ieee80211_rann_ie
612 *
613 * This structure refers to "Root Announcement information element"
614 */
615struct ieee80211_rann_ie {
616 u8 rann_flags;
617 u8 rann_hopcount;
618 u8 rann_ttl;
619 u8 rann_addr[6];
620 u32 rann_seq;
621 u32 rann_metric;
622} __attribute__ ((packed));
623
Jouni Malinen9dfd6ba2009-05-06 20:34:10 +0300624#define WLAN_SA_QUERY_TR_ID_LEN 2
Jouni Malinenfea14732009-01-08 13:32:06 +0200625
Jiri Benca9de8ce2007-05-05 11:43:04 -0700626struct ieee80211_mgmt {
627 __le16 frame_control;
628 __le16 duration;
629 u8 da[6];
630 u8 sa[6];
631 u8 bssid[6];
632 __le16 seq_ctrl;
633 union {
634 struct {
635 __le16 auth_alg;
636 __le16 auth_transaction;
637 __le16 status_code;
638 /* possibly followed by Challenge text */
639 u8 variable[0];
640 } __attribute__ ((packed)) auth;
641 struct {
642 __le16 reason_code;
643 } __attribute__ ((packed)) deauth;
644 struct {
645 __le16 capab_info;
646 __le16 listen_interval;
647 /* followed by SSID and Supported rates */
648 u8 variable[0];
649 } __attribute__ ((packed)) assoc_req;
650 struct {
651 __le16 capab_info;
652 __le16 status_code;
653 __le16 aid;
654 /* followed by Supported rates */
655 u8 variable[0];
656 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
657 struct {
658 __le16 capab_info;
659 __le16 listen_interval;
660 u8 current_ap[6];
661 /* followed by SSID and Supported rates */
662 u8 variable[0];
663 } __attribute__ ((packed)) reassoc_req;
664 struct {
665 __le16 reason_code;
666 } __attribute__ ((packed)) disassoc;
667 struct {
668 __le64 timestamp;
669 __le16 beacon_int;
670 __le16 capab_info;
671 /* followed by some of SSID, Supported rates,
672 * FH Params, DS Params, CF Params, IBSS Params, TIM */
673 u8 variable[0];
674 } __attribute__ ((packed)) beacon;
675 struct {
676 /* only variable items: SSID, Supported rates */
677 u8 variable[0];
678 } __attribute__ ((packed)) probe_req;
679 struct {
680 __le64 timestamp;
681 __le16 beacon_int;
682 __le16 capab_info;
683 /* followed by some of SSID, Supported rates,
684 * FH Params, DS Params, CF Params, IBSS Params */
685 u8 variable[0];
686 } __attribute__ ((packed)) probe_resp;
687 struct {
688 u8 category;
689 union {
690 struct {
691 u8 action_code;
692 u8 dialog_token;
693 u8 status_code;
694 u8 variable[0];
695 } __attribute__ ((packed)) wme_action;
696 struct{
697 u8 action_code;
698 u8 element_id;
699 u8 length;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300700 struct ieee80211_channel_sw_ie sw_elem;
Jiri Benca9de8ce2007-05-05 11:43:04 -0700701 } __attribute__((packed)) chan_switch;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200702 struct{
703 u8 action_code;
704 u8 dialog_token;
Assaf Kraussf2df3852008-06-15 18:23:29 +0300705 u8 element_id;
706 u8 length;
707 struct ieee80211_msrment_ie msr_elem;
708 } __attribute__((packed)) measurement;
709 struct{
710 u8 action_code;
711 u8 dialog_token;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200712 __le16 capab;
713 __le16 timeout;
714 __le16 start_seq_num;
715 } __attribute__((packed)) addba_req;
716 struct{
717 u8 action_code;
718 u8 dialog_token;
719 __le16 status;
720 __le16 capab;
721 __le16 timeout;
722 } __attribute__((packed)) addba_resp;
723 struct{
724 u8 action_code;
725 __le16 params;
726 __le16 reason_code;
727 } __attribute__((packed)) delba;
Luis Carlos Cobo37c57982008-02-23 15:17:04 +0100728 struct{
729 u8 action_code;
730 /* capab_info for open and confirm,
731 * reason for close
732 */
733 __le16 aux;
734 /* Followed in plink_confirm by status
735 * code, AID and supported rates,
736 * and directly by supported rates in
737 * plink_open and plink_close
738 */
739 u8 variable[0];
740 } __attribute__((packed)) plink_action;
741 struct{
742 u8 action_code;
743 u8 variable[0];
744 } __attribute__((packed)) mesh_action;
Jouni Malinenfea14732009-01-08 13:32:06 +0200745 struct {
746 u8 action;
747 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
748 } __attribute__ ((packed)) sa_query;
Johannes Berg0f782312009-12-01 13:37:02 +0100749 struct {
750 u8 action;
751 u8 smps_control;
752 } __attribute__ ((packed)) ht_smps;
Jiri Benca9de8ce2007-05-05 11:43:04 -0700753 } u;
754 } __attribute__ ((packed)) action;
755 } u;
756} __attribute__ ((packed));
757
Johannes Berg44d414d2008-09-08 17:44:28 +0200758/* mgmt header + 1 byte category code */
759#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
760
Jiri Benca9de8ce2007-05-05 11:43:04 -0700761
Jouni Malinen765cb462009-01-08 13:32:01 +0200762/* Management MIC information element (IEEE 802.11w) */
763struct ieee80211_mmie {
764 u8 element_id;
765 u8 length;
766 __le16 key_id;
767 u8 sequence_number[6];
768 u8 mic[8];
769} __attribute__ ((packed));
770
Jiri Benca9de8ce2007-05-05 11:43:04 -0700771/* Control frames */
772struct ieee80211_rts {
773 __le16 frame_control;
774 __le16 duration;
775 u8 ra[6];
776 u8 ta[6];
777} __attribute__ ((packed));
778
779struct ieee80211_cts {
780 __le16 frame_control;
781 __le16 duration;
782 u8 ra[6];
783} __attribute__ ((packed));
784
Jouni Malinenfc6971d2008-10-30 19:59:05 +0200785struct ieee80211_pspoll {
786 __le16 frame_control;
787 __le16 aid;
788 u8 bssid[6];
789 u8 ta[6];
790} __attribute__ ((packed));
791
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200792/**
793 * struct ieee80211_bar - HT Block Ack Request
794 *
795 * This structure refers to "HT BlockAckReq" as
796 * described in 802.11n draft section 7.2.1.7.1
797 */
798struct ieee80211_bar {
799 __le16 frame_control;
800 __le16 duration;
801 __u8 ra[6];
802 __u8 ta[6];
Ron Rindjunskya8b47ea2008-01-21 12:39:11 +0200803 __le16 control;
804 __le16 start_seq_num;
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200805} __attribute__((packed));
806
Ron Rindjunsky429a3802008-07-01 14:16:03 +0300807/* 802.11 BAR control masks */
808#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
809#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
810
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200811
812#define IEEE80211_HT_MCS_MASK_LEN 10
813
814/**
815 * struct ieee80211_mcs_info - MCS information
816 * @rx_mask: RX mask
Luis R. Rodriguez9da3e062009-12-07 15:57:50 -0500817 * @rx_highest: highest supported RX rate. If set represents
818 * the highest supported RX data rate in units of 1 Mbps.
819 * If this field is 0 this value should not be used to
820 * consider the highest RX data rate supported.
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200821 * @tx_params: TX parameters
822 */
823struct ieee80211_mcs_info {
824 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
825 __le16 rx_highest;
826 u8 tx_params;
827 u8 reserved[3];
828} __attribute__((packed));
829
830/* 802.11n HT capability MSC set */
831#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
832#define IEEE80211_HT_MCS_TX_DEFINED 0x01
833#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
834/* value 0 == 1 stream etc */
835#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
836#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
837#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
838#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
839
840/*
841 * 802.11n D5.0 20.3.5 / 20.6 says:
842 * - indices 0 to 7 and 32 are single spatial stream
843 * - 8 to 31 are multiple spatial streams using equal modulation
844 * [8..15 for two streams, 16..23 for three and 24..31 for four]
845 * - remainder are multiple spatial streams using unequal modulation
846 */
847#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
848#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
849 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
850
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200851/**
852 * struct ieee80211_ht_cap - HT capabilities
853 *
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200854 * This structure is the "HT capabilities element" as
855 * described in 802.11n D5.0 7.3.2.57
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200856 */
857struct ieee80211_ht_cap {
858 __le16 cap_info;
859 u8 ampdu_params_info;
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200860
861 /* 16 bytes MCS information */
862 struct ieee80211_mcs_info mcs;
863
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200864 __le16 extended_ht_cap_info;
865 __le32 tx_BF_cap_info;
866 u8 antenna_selection_info;
867} __attribute__ ((packed));
868
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200869/* 802.11n HT capabilities masks (for cap_info) */
870#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
871#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
872#define IEEE80211_HT_CAP_SM_PS 0x000C
Johannes Berg0f782312009-12-01 13:37:02 +0100873#define IEEE80211_HT_CAP_SM_PS_SHIFT 2
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200874#define IEEE80211_HT_CAP_GRN_FLD 0x0010
875#define IEEE80211_HT_CAP_SGI_20 0x0020
876#define IEEE80211_HT_CAP_SGI_40 0x0040
877#define IEEE80211_HT_CAP_TX_STBC 0x0080
878#define IEEE80211_HT_CAP_RX_STBC 0x0300
Felix Fietkauf79d9ba2010-04-19 19:57:35 +0200879#define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200880#define IEEE80211_HT_CAP_DELAY_BA 0x0400
881#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
882#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
Johannes Berg9a418af2009-12-17 13:55:48 +0100883#define IEEE80211_HT_CAP_RESERVED 0x2000
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200884#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
885#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
886
887/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
888#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
889#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
Johannes Berg0f782312009-12-01 13:37:02 +0100890#define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200891
Sujithd1eba242009-07-23 15:31:31 +0530892/*
893 * Maximum length of AMPDU that the STA can receive.
894 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
895 */
896enum ieee80211_max_ampdu_length_exp {
897 IEEE80211_HT_MAX_AMPDU_8K = 0,
898 IEEE80211_HT_MAX_AMPDU_16K = 1,
899 IEEE80211_HT_MAX_AMPDU_32K = 2,
900 IEEE80211_HT_MAX_AMPDU_64K = 3
901};
902
903#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
904
905/* Minimum MPDU start spacing */
906enum ieee80211_min_mpdu_spacing {
907 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
908 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
909 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
910 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
911 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
912 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
913 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
914 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
915};
916
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200917/**
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200918 * struct ieee80211_ht_info - HT information
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200919 *
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200920 * This structure is the "HT information element" as
921 * described in 802.11n D5.0 7.3.2.58
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200922 */
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200923struct ieee80211_ht_info {
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +0200924 u8 control_chan;
925 u8 ht_param;
926 __le16 operation_mode;
927 __le16 stbc_param;
928 u8 basic_set[16];
929} __attribute__ ((packed));
930
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200931/* for ht_param */
932#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
933#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
934#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
935#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
936#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
937#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
938#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
939#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
940
941/* for operation_mode */
942#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
943#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
944#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
945#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
946#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
947#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
948#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
949
950/* for stbc_param */
951#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
952#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
953#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
954#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
955#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
956#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
957
Jiri Benca9de8ce2007-05-05 11:43:04 -0700958
Johannes Berg44d414d2008-09-08 17:44:28 +0200959/* block-ack parameters */
960#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
961#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
962#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
963#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
964#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
965
966/*
967 * A-PMDU buffer sizes
968 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
969 */
970#define IEEE80211_MIN_AMPDU_BUF 0x8
971#define IEEE80211_MAX_AMPDU_BUF 0x40
972
973
Johannes Berg0f782312009-12-01 13:37:02 +0100974/* Spatial Multiplexing Power Save Modes (for capability) */
Tomas Winkler00c5ae22008-09-03 11:26:42 +0800975#define WLAN_HT_CAP_SM_PS_STATIC 0
976#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
977#define WLAN_HT_CAP_SM_PS_INVALID 2
978#define WLAN_HT_CAP_SM_PS_DISABLED 3
Tomas Winklere53cfe02008-01-30 22:05:13 -0800979
Johannes Berg0f782312009-12-01 13:37:02 +0100980/* for SM power control field lower two bits */
981#define WLAN_HT_SMPS_CONTROL_DISABLED 0
982#define WLAN_HT_SMPS_CONTROL_STATIC 1
983#define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
984
Jiri Benca9de8ce2007-05-05 11:43:04 -0700985/* Authentication algorithms */
986#define WLAN_AUTH_OPEN 0
987#define WLAN_AUTH_SHARED_KEY 1
Jouni Malinen636a5d32009-03-19 13:39:22 +0200988#define WLAN_AUTH_FT 2
Steve deRosiercfdfa4d2010-10-09 17:23:28 -0700989#define WLAN_AUTH_SAE 3
Senthil Balasubramanianbb608e92008-12-04 20:38:13 +0530990#define WLAN_AUTH_LEAP 128
Jiri Benca9de8ce2007-05-05 11:43:04 -0700991
992#define WLAN_AUTH_CHALLENGE_LEN 128
993
994#define WLAN_CAPABILITY_ESS (1<<0)
995#define WLAN_CAPABILITY_IBSS (1<<1)
996#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
997#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
998#define WLAN_CAPABILITY_PRIVACY (1<<4)
999#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1000#define WLAN_CAPABILITY_PBCC (1<<6)
1001#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
Assaf Kraussb6623482008-06-16 16:09:49 +03001002
Jiri Benca9de8ce2007-05-05 11:43:04 -07001003/* 802.11h */
1004#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1005#define WLAN_CAPABILITY_QOS (1<<9)
1006#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1007#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
Assaf Kraussb6623482008-06-16 16:09:49 +03001008/* measurement */
1009#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1010#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1011#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1012
1013#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1014#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1015#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1016
Jiri Benca9de8ce2007-05-05 11:43:04 -07001017
Daniel Drake56282212007-07-10 19:32:10 +02001018/* 802.11g ERP information element */
1019#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1020#define WLAN_ERP_USE_PROTECTION (1<<1)
1021#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1022
1023/* WLAN_ERP_BARKER_PREAMBLE values */
1024enum {
1025 WLAN_ERP_PREAMBLE_SHORT = 0,
1026 WLAN_ERP_PREAMBLE_LONG = 1,
1027};
1028
Jiri Benca9de8ce2007-05-05 11:43:04 -07001029/* Status codes */
1030enum ieee80211_statuscode {
1031 WLAN_STATUS_SUCCESS = 0,
1032 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1033 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1034 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1035 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1036 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1037 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1038 WLAN_STATUS_CHALLENGE_FAIL = 15,
1039 WLAN_STATUS_AUTH_TIMEOUT = 16,
1040 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1041 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1042 /* 802.11b */
1043 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1044 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1045 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1046 /* 802.11h */
1047 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1048 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1049 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1050 /* 802.11g */
1051 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1052 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
Jouni Malinen63a5ab82009-01-08 13:32:09 +02001053 /* 802.11w */
1054 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1055 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001056 /* 802.11i */
1057 WLAN_STATUS_INVALID_IE = 40,
1058 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1059 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1060 WLAN_STATUS_INVALID_AKMP = 43,
1061 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1062 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1063 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001064 /* 802.11e */
1065 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1066 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1067 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1068 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1069 WLAN_STATUS_REQUEST_DECLINED = 37,
1070 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1071 WLAN_STATUS_CHANGE_TSPEC = 39,
1072 WLAN_STATUS_WAIT_TS_DELAY = 47,
1073 WLAN_STATUS_NO_DIRECT_LINK = 48,
1074 WLAN_STATUS_STA_NOT_PRESENT = 49,
1075 WLAN_STATUS_STA_NOT_QSTA = 50,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001076 /* 802.11s */
1077 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1078 WLAN_STATUS_FCG_NOT_SUPP = 78,
1079 WLAN_STATUS_STA_NO_TBTT = 78,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001080};
1081
1082
1083/* Reason codes */
1084enum ieee80211_reasoncode {
1085 WLAN_REASON_UNSPECIFIED = 1,
1086 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1087 WLAN_REASON_DEAUTH_LEAVING = 3,
1088 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1089 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1090 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1091 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1092 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1093 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1094 /* 802.11h */
1095 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1096 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1097 /* 802.11i */
1098 WLAN_REASON_INVALID_IE = 13,
1099 WLAN_REASON_MIC_FAILURE = 14,
1100 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1101 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1102 WLAN_REASON_IE_DIFFERENT = 17,
1103 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1104 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1105 WLAN_REASON_INVALID_AKMP = 20,
1106 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1107 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1108 WLAN_REASON_IEEE8021X_FAILED = 23,
1109 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001110 /* 802.11e */
1111 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1112 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1113 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1114 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1115 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1116 WLAN_REASON_QSTA_NOT_USE = 37,
1117 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1118 WLAN_REASON_QSTA_TIMEOUT = 39,
1119 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001120 /* 802.11s */
1121 WLAN_REASON_MESH_PEER_CANCELED = 52,
1122 WLAN_REASON_MESH_MAX_PEERS = 53,
1123 WLAN_REASON_MESH_CONFIG = 54,
1124 WLAN_REASON_MESH_CLOSE = 55,
1125 WLAN_REASON_MESH_MAX_RETRIES = 56,
1126 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1127 WLAN_REASON_MESH_INVALID_GTK = 58,
1128 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1129 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1130 WLAN_REASON_MESH_PATH_ERROR = 61,
1131 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1132 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1133 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1134 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1135 WLAN_REASON_MESH_CHAN = 66,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001136};
1137
1138
1139/* Information Element IDs */
1140enum ieee80211_eid {
1141 WLAN_EID_SSID = 0,
1142 WLAN_EID_SUPP_RATES = 1,
1143 WLAN_EID_FH_PARAMS = 2,
1144 WLAN_EID_DS_PARAMS = 3,
1145 WLAN_EID_CF_PARAMS = 4,
1146 WLAN_EID_TIM = 5,
1147 WLAN_EID_IBSS_PARAMS = 6,
1148 WLAN_EID_CHALLENGE = 16,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001149
Jiri Benca9de8ce2007-05-05 11:43:04 -07001150 WLAN_EID_COUNTRY = 7,
1151 WLAN_EID_HP_PARAMS = 8,
1152 WLAN_EID_HP_TABLE = 9,
1153 WLAN_EID_REQUEST = 10,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001154
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001155 WLAN_EID_QBSS_LOAD = 11,
1156 WLAN_EID_EDCA_PARAM_SET = 12,
1157 WLAN_EID_TSPEC = 13,
1158 WLAN_EID_TCLAS = 14,
1159 WLAN_EID_SCHEDULE = 15,
1160 WLAN_EID_TS_DELAY = 43,
1161 WLAN_EID_TCLAS_PROCESSING = 44,
1162 WLAN_EID_QOS_CAPA = 46,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001163 /* 802.11s */
1164 WLAN_EID_MESH_CONFIG = 113,
1165 WLAN_EID_MESH_ID = 114,
1166 WLAN_EID_LINK_METRIC_REPORT = 115,
1167 WLAN_EID_CONGESTION_NOTIFICATION = 116,
1168 /* Note that the Peer Link IE has been replaced with the similar
1169 * Peer Management IE. We will keep the former definition until mesh
1170 * code is changed to comply with latest 802.11s drafts.
Luis Carlos Cobod619ee02008-04-23 12:34:59 -07001171 */
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001172 WLAN_EID_PEER_LINK = 55, /* no longer in 802.11s drafts */
1173 WLAN_EID_PEER_MGMT = 117,
1174 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1175 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1176 WLAN_EID_BEACON_TIMING = 120,
1177 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1178 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1179 WLAN_EID_MCCAOP_ADVERT = 123,
1180 WLAN_EID_MCCAOP_TEARDOWN = 124,
1181 WLAN_EID_GANN = 125,
1182 WLAN_EID_RANN = 126,
1183 WLAN_EID_PREQ = 130,
1184 WLAN_EID_PREP = 131,
1185 WLAN_EID_PERR = 132,
1186 WLAN_EID_PXU = 137,
1187 WLAN_EID_PXUC = 138,
1188 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1189 WLAN_EID_MIC = 140,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001190
Jiri Benca9de8ce2007-05-05 11:43:04 -07001191 WLAN_EID_PWR_CONSTRAINT = 32,
1192 WLAN_EID_PWR_CAPABILITY = 33,
1193 WLAN_EID_TPC_REQUEST = 34,
1194 WLAN_EID_TPC_REPORT = 35,
1195 WLAN_EID_SUPPORTED_CHANNELS = 36,
1196 WLAN_EID_CHANNEL_SWITCH = 37,
1197 WLAN_EID_MEASURE_REQUEST = 38,
1198 WLAN_EID_MEASURE_REPORT = 39,
1199 WLAN_EID_QUIET = 40,
1200 WLAN_EID_IBSS_DFS = 41,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001201
Jiri Benca9de8ce2007-05-05 11:43:04 -07001202 WLAN_EID_ERP_INFO = 42,
1203 WLAN_EID_EXT_SUPP_RATES = 50,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001204
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001205 WLAN_EID_HT_CAPABILITY = 45,
Johannes Bergd9fe60d2008-10-09 12:13:49 +02001206 WLAN_EID_HT_INFORMATION = 61,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001207
Jiri Benca9de8ce2007-05-05 11:43:04 -07001208 WLAN_EID_RSN = 48,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001209 WLAN_EID_MMIE = 76,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001210 WLAN_EID_WPA = 221,
1211 WLAN_EID_GENERIC = 221,
1212 WLAN_EID_VENDOR_SPECIFIC = 221,
Johannes Berg8e664fb2009-12-23 13:15:38 +01001213 WLAN_EID_QOS_PARAMETER = 222,
1214
1215 WLAN_EID_AP_CHAN_REPORT = 51,
1216 WLAN_EID_NEIGHBOR_REPORT = 52,
1217 WLAN_EID_RCPI = 53,
1218 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1219 WLAN_EID_ANTENNA_INFO = 64,
1220 WLAN_EID_RSNI = 65,
1221 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1222 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1223 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1224 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1225 WLAN_EID_MULTIPLE_BSSID = 71,
1226
1227 WLAN_EID_MOBILITY_DOMAIN = 54,
1228 WLAN_EID_FAST_BSS_TRANSITION = 55,
1229 WLAN_EID_TIMEOUT_INTERVAL = 56,
1230 WLAN_EID_RIC_DATA = 57,
1231 WLAN_EID_RIC_DESCRIPTOR = 75,
1232
1233 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1234 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1235 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
Jiri Benca9de8ce2007-05-05 11:43:04 -07001236};
1237
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001238/* Action category code */
1239enum ieee80211_category {
1240 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1241 WLAN_CATEGORY_QOS = 1,
1242 WLAN_CATEGORY_DLS = 2,
1243 WLAN_CATEGORY_BACK = 3,
Jouni Malinenfb733332009-01-08 13:32:00 +02001244 WLAN_CATEGORY_PUBLIC = 4,
Jouni Malinen528769c2009-05-11 10:20:35 +03001245 WLAN_CATEGORY_HT = 7,
Jouni Malinenfea14732009-01-08 13:32:06 +02001246 WLAN_CATEGORY_SA_QUERY = 8,
Jouni Malinen528769c2009-05-11 10:20:35 +03001247 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001248 WLAN_CATEGORY_MESH_ACTION = 13,
1249 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1250 WLAN_CATEGORY_SELF_PROTECTED = 15,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001251 WLAN_CATEGORY_WMM = 17,
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001252 /* TODO: remove MESH_PLINK and MESH_PATH_SEL after */
1253 /* mesh is updated to current 802.11s draft */
1254 WLAN_CATEGORY_MESH_PLINK = 30,
1255 WLAN_CATEGORY_MESH_PATH_SEL = 32,
Jouni Malinen528769c2009-05-11 10:20:35 +03001256 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1257 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001258};
1259
Assaf Kraussf2df3852008-06-15 18:23:29 +03001260/* SPECTRUM_MGMT action code */
1261enum ieee80211_spectrum_mgmt_actioncode {
1262 WLAN_ACTION_SPCT_MSR_REQ = 0,
1263 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1264 WLAN_ACTION_SPCT_TPC_REQ = 2,
1265 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1266 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1267};
1268
Johannes Berg0f782312009-12-01 13:37:02 +01001269/* HT action codes */
1270enum ieee80211_ht_actioncode {
1271 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1272 WLAN_HT_ACTION_SMPS = 1,
1273 WLAN_HT_ACTION_PSMP = 2,
1274 WLAN_HT_ACTION_PCO_PHASE = 3,
1275 WLAN_HT_ACTION_CSI = 4,
1276 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1277 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1278 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1279};
1280
Zhu Yie31a16d2009-05-21 21:47:03 +08001281/* Security key length */
1282enum ieee80211_key_len {
1283 WLAN_KEY_LEN_WEP40 = 5,
1284 WLAN_KEY_LEN_WEP104 = 13,
1285 WLAN_KEY_LEN_CCMP = 16,
1286 WLAN_KEY_LEN_TKIP = 32,
Johannes Berg8fc0fee2009-05-24 16:57:19 +02001287 WLAN_KEY_LEN_AES_CMAC = 16,
Zhu Yie31a16d2009-05-21 21:47:03 +08001288};
1289
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -08001290/*
1291 * IEEE 802.11-2007 7.3.2.9 Country information element
1292 *
1293 * Minimum length is 8 octets, ie len must be evenly
1294 * divisible by 2
1295 */
1296
1297/* Although the spec says 8 I'm seeing 6 in practice */
1298#define IEEE80211_COUNTRY_IE_MIN_LEN 6
1299
1300/*
1301 * For regulatory extension stuff see IEEE 802.11-2007
1302 * Annex I (page 1141) and Annex J (page 1147). Also
1303 * review 7.3.2.9.
1304 *
1305 * When dot11RegulatoryClassesRequired is true and the
1306 * first_channel/reg_extension_id is >= 201 then the IE
1307 * compromises of the 'ext' struct represented below:
1308 *
1309 * - Regulatory extension ID - when generating IE this just needs
1310 * to be monotonically increasing for each triplet passed in
1311 * the IE
1312 * - Regulatory class - index into set of rules
1313 * - Coverage class - index into air propagation time (Table 7-27),
1314 * in microseconds, you can compute the air propagation time from
1315 * the index by multiplying by 3, so index 10 yields a propagation
1316 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1317 * yet. A value of 0 inicates air propagation of <= 1 us.
1318 *
1319 * See also Table I.2 for Emission limit sets and table
1320 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1321 * a reg_class to an emission limit set and behavior limit set.
1322 */
1323#define IEEE80211_COUNTRY_EXTENSION_ID 201
1324
1325/*
1326 * Channels numbers in the IE must be monotonically increasing
1327 * if dot11RegulatoryClassesRequired is not true.
1328 *
1329 * If dot11RegulatoryClassesRequired is true consecutive
1330 * subband triplets following a regulatory triplet shall
1331 * have monotonically increasing first_channel number fields.
1332 *
1333 * Channel numbers shall not overlap.
1334 *
1335 * Note that max_power is signed.
1336 */
1337struct ieee80211_country_ie_triplet {
1338 union {
1339 struct {
1340 u8 first_channel;
1341 u8 num_channels;
1342 s8 max_power;
1343 } __attribute__ ((packed)) chans;
1344 struct {
1345 u8 reg_extension_id;
1346 u8 reg_class;
1347 u8 coverage_class;
1348 } __attribute__ ((packed)) ext;
1349 };
1350} __attribute__ ((packed));
1351
Jouni Malinenf797eb72009-01-19 18:48:46 +02001352enum ieee80211_timeout_interval_type {
1353 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1354 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1355 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1356};
1357
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001358/* BACK action code */
1359enum ieee80211_back_actioncode {
1360 WLAN_ACTION_ADDBA_REQ = 0,
1361 WLAN_ACTION_ADDBA_RESP = 1,
1362 WLAN_ACTION_DELBA = 2,
1363};
1364
Ron Rindjunsky07db2182007-12-25 17:00:33 +02001365/* BACK (block-ack) parties */
1366enum ieee80211_back_parties {
1367 WLAN_BACK_RECIPIENT = 0,
1368 WLAN_BACK_INITIATOR = 1,
Ron Rindjunsky07db2182007-12-25 17:00:33 +02001369};
1370
Jouni Malinenfea14732009-01-08 13:32:06 +02001371/* SA Query action */
1372enum ieee80211_sa_query_action {
1373 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1374 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1375};
1376
1377
Ron Rindjunsky6b4e3242007-11-14 19:57:38 +02001378/* A-MSDU 802.11n */
1379#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1380
Jiri Benca9de8ce2007-05-05 11:43:04 -07001381/* cipher suite selectors */
1382#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1383#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1384#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1385/* reserved: 0x000FAC03 */
1386#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1387#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +02001388#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
Jiri Benca9de8ce2007-05-05 11:43:04 -07001389
Johannes Berg6a669e62009-07-01 21:26:53 +02001390/* AKM suite selectors */
1391#define WLAN_AKM_SUITE_8021X 0x000FAC01
1392#define WLAN_AKM_SUITE_PSK 0x000FAC02
Steve deRosiercfdfa4d2010-10-09 17:23:28 -07001393#define WLAN_AKM_SUITE_SAE 0x000FAC08
1394#define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
Johannes Berg6a669e62009-07-01 21:26:53 +02001395
Jiri Benca9de8ce2007-05-05 11:43:04 -07001396#define WLAN_MAX_KEY_LEN 32
1397
Samuel Ortiz67fbb162009-11-24 23:59:15 +01001398#define WLAN_PMKID_LEN 16
1399
Johannes Bergf97df022007-09-18 17:29:20 -04001400/**
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001401 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1402 * @hdr: the frame
1403 *
1404 * The qos ctrl bytes come after the frame_control, duration, seq_num
1405 * and 3 or 4 addresses of length ETH_ALEN.
1406 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1407 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1408 */
1409static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1410{
1411 if (ieee80211_has_a4(hdr->frame_control))
1412 return (u8 *)hdr + 30;
1413 else
1414 return (u8 *)hdr + 24;
1415}
1416
1417/**
Johannes Bergf97df022007-09-18 17:29:20 -04001418 * ieee80211_get_SA - get pointer to SA
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001419 * @hdr: the frame
Johannes Bergf97df022007-09-18 17:29:20 -04001420 *
1421 * Given an 802.11 frame, this function returns the offset
1422 * to the source address (SA). It does not verify that the
1423 * header is long enough to contain the address, and the
1424 * header must be long enough to contain the frame control
1425 * field.
Johannes Bergf97df022007-09-18 17:29:20 -04001426 */
1427static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1428{
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001429 if (ieee80211_has_a4(hdr->frame_control))
Harvey Harrison5a433b32008-04-21 10:41:10 -07001430 return hdr->addr4;
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001431 if (ieee80211_has_fromds(hdr->frame_control))
1432 return hdr->addr3;
1433 return hdr->addr2;
Johannes Bergf97df022007-09-18 17:29:20 -04001434}
1435
1436/**
1437 * ieee80211_get_DA - get pointer to DA
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001438 * @hdr: the frame
Johannes Bergf97df022007-09-18 17:29:20 -04001439 *
1440 * Given an 802.11 frame, this function returns the offset
1441 * to the destination address (DA). It does not verify that
1442 * the header is long enough to contain the address, and the
1443 * header must be long enough to contain the frame control
1444 * field.
Johannes Bergf97df022007-09-18 17:29:20 -04001445 */
1446static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1447{
Harvey Harrisonfd7c8a42008-06-11 14:21:56 -07001448 if (ieee80211_has_tods(hdr->frame_control))
Johannes Bergf97df022007-09-18 17:29:20 -04001449 return hdr->addr3;
Harvey Harrison5a433b32008-04-21 10:41:10 -07001450 else
1451 return hdr->addr1;
Johannes Bergf97df022007-09-18 17:29:20 -04001452}
1453
David Kilroy9ee677c2008-12-23 14:03:38 +00001454/**
Jouni Malinenfb733332009-01-08 13:32:00 +02001455 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1456 * @hdr: the frame (buffer must include at least the first octet of payload)
1457 */
1458static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1459{
1460 if (ieee80211_is_disassoc(hdr->frame_control) ||
1461 ieee80211_is_deauth(hdr->frame_control))
1462 return true;
1463
1464 if (ieee80211_is_action(hdr->frame_control)) {
1465 u8 *category;
1466
1467 /*
1468 * Action frames, excluding Public Action frames, are Robust
1469 * Management Frames. However, if we are looking at a Protected
1470 * frame, skip the check since the data may be encrypted and
1471 * the frame has already been found to be a Robust Management
1472 * Frame (by the other end).
1473 */
1474 if (ieee80211_has_protected(hdr->frame_control))
1475 return true;
1476 category = ((u8 *) hdr) + 24;
Jouni Malinen528769c2009-05-11 10:20:35 +03001477 return *category != WLAN_CATEGORY_PUBLIC &&
1478 *category != WLAN_CATEGORY_HT &&
1479 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
Jouni Malinenfb733332009-01-08 13:32:00 +02001480 }
1481
1482 return false;
1483}
1484
1485/**
David Kilroy9ee677c2008-12-23 14:03:38 +00001486 * ieee80211_fhss_chan_to_freq - get channel frequency
1487 * @channel: the FHSS channel
1488 *
1489 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1490 * Ref IEEE 802.11-2007 section 14.6
1491 */
1492static inline int ieee80211_fhss_chan_to_freq(int channel)
1493{
1494 if ((channel > 1) && (channel < 96))
1495 return channel + 2400;
1496 else
1497 return -1;
1498}
1499
1500/**
1501 * ieee80211_freq_to_fhss_chan - get channel
1502 * @freq: the channels frequency
1503 *
1504 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1505 * Ref IEEE 802.11-2007 section 14.6
1506 */
1507static inline int ieee80211_freq_to_fhss_chan(int freq)
1508{
1509 if ((freq > 2401) && (freq < 2496))
1510 return freq - 2400;
1511 else
1512 return -1;
1513}
1514
1515/**
1516 * ieee80211_dsss_chan_to_freq - get channel center frequency
1517 * @channel: the DSSS channel
1518 *
1519 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1520 * Ref IEEE 802.11-2007 section 15.6
1521 */
1522static inline int ieee80211_dsss_chan_to_freq(int channel)
1523{
1524 if ((channel > 0) && (channel < 14))
1525 return 2407 + (channel * 5);
1526 else if (channel == 14)
1527 return 2484;
1528 else
1529 return -1;
1530}
1531
1532/**
1533 * ieee80211_freq_to_dsss_chan - get channel
1534 * @freq: the frequency
1535 *
1536 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1537 * Ref IEEE 802.11-2007 section 15.6
1538 *
1539 * This routine selects the channel with the closest center frequency.
1540 */
1541static inline int ieee80211_freq_to_dsss_chan(int freq)
1542{
1543 if ((freq >= 2410) && (freq < 2475))
1544 return (freq - 2405) / 5;
1545 else if ((freq >= 2482) && (freq < 2487))
1546 return 14;
1547 else
1548 return -1;
1549}
1550
1551/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1552 * Ref IEEE 802.11-2007 section 18.4.6.2
1553 *
1554 * The channels and frequencies are the same as those defined for DSSS
1555 */
1556#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1557#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1558
1559/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1560 * Ref IEEE 802.11-2007 section 19.4.2
1561 */
1562#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1563#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1564
1565/**
1566 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1567 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1568 * @channel: the OFDM channel
1569 *
1570 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1571 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1572 */
1573static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1574{
1575 if ((channel > 0) && (channel <= 200) &&
1576 (s_freq >= 4000))
1577 return s_freq + (channel * 5);
1578 else
1579 return -1;
1580}
1581
1582/**
1583 * ieee80211_freq_to_ofdm_channel - get channel
1584 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1585 * @freq: the frequency
1586 *
1587 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1588 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1589 *
1590 * This routine selects the channel with the closest center frequency.
1591 */
1592static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1593{
1594 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1595 (s_freq >= 4000))
1596 return (freq + 2 - s_freq) / 5;
1597 else
1598 return -1;
1599}
1600
Johannes Berg10f644a2009-04-16 13:17:25 +02001601/**
1602 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1603 * @tu: the TUs
1604 */
1605static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1606{
1607 return 1024 * tu;
1608}
1609
Johannes Berge7ec86f2009-04-18 17:33:24 +02001610/**
1611 * ieee80211_check_tim - check if AID bit is set in TIM
1612 * @tim: the TIM IE
1613 * @tim_len: length of the TIM IE
1614 * @aid: the AID to look for
1615 */
1616static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1617 u8 tim_len, u16 aid)
1618{
1619 u8 mask;
1620 u8 index, indexn1, indexn2;
1621
1622 if (unlikely(!tim || tim_len < sizeof(*tim)))
1623 return false;
1624
1625 aid &= 0x3fff;
1626 index = aid / 8;
1627 mask = 1 << (aid & 7);
1628
1629 indexn1 = tim->bitmap_ctrl & 0xfe;
1630 indexn2 = tim_len + indexn1 - 4;
1631
1632 if (index < indexn1 || index > indexn2)
1633 return false;
1634
1635 index -= indexn1;
1636
1637 return !!(tim->virtual_map[index] & mask);
1638}
1639
John W. Linville9387b7c2008-09-30 20:59:05 -04001640#endif /* LINUX_IEEE80211_H */