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wireless: escape_ssid should handle non-printables
[deliverable/linux.git] / include / linux / ieee80211.h
CommitLineData
a9de8ce0
JB		 1/*
2 * IEEE 802.11 defines
3 *
4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
5 * <jkmaline@cc.hut.fi>
6 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
7 * Copyright (c) 2005, Devicescape Software, Inc.
8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#ifndef IEEE80211_H
16#define IEEE80211_H
17
18#include <linux/types.h>
f97df02e 19#include <asm/byteorder.h>
a9de8ce0
JB		 20
21#define FCS_LEN 4
22
23#define IEEE80211_FCTL_VERS 0x0003
24#define IEEE80211_FCTL_FTYPE 0x000c
25#define IEEE80211_FCTL_STYPE 0x00f0
26#define IEEE80211_FCTL_TODS 0x0100
27#define IEEE80211_FCTL_FROMDS 0x0200
28#define IEEE80211_FCTL_MOREFRAGS 0x0400
29#define IEEE80211_FCTL_RETRY 0x0800
30#define IEEE80211_FCTL_PM 0x1000
31#define IEEE80211_FCTL_MOREDATA 0x2000
32#define IEEE80211_FCTL_PROTECTED 0x4000
33#define IEEE80211_FCTL_ORDER 0x8000
34
35#define IEEE80211_SCTL_FRAG 0x000F
36#define IEEE80211_SCTL_SEQ 0xFFF0
37
38#define IEEE80211_FTYPE_MGMT 0x0000
39#define IEEE80211_FTYPE_CTL 0x0004
40#define IEEE80211_FTYPE_DATA 0x0008
41
42/* management */
43#define IEEE80211_STYPE_ASSOC_REQ 0x0000
44#define IEEE80211_STYPE_ASSOC_RESP 0x0010
45#define IEEE80211_STYPE_REASSOC_REQ 0x0020
46#define IEEE80211_STYPE_REASSOC_RESP 0x0030
47#define IEEE80211_STYPE_PROBE_REQ 0x0040
48#define IEEE80211_STYPE_PROBE_RESP 0x0050
49#define IEEE80211_STYPE_BEACON 0x0080
50#define IEEE80211_STYPE_ATIM 0x0090
51#define IEEE80211_STYPE_DISASSOC 0x00A0
52#define IEEE80211_STYPE_AUTH 0x00B0
53#define IEEE80211_STYPE_DEAUTH 0x00C0
54#define IEEE80211_STYPE_ACTION 0x00D0
55
56/* control */
6b4e3241
RR		 57#define IEEE80211_STYPE_BACK_REQ 0x0080
58#define IEEE80211_STYPE_BACK 0x0090
a9de8ce0
JB		 59#define IEEE80211_STYPE_PSPOLL 0x00A0
60#define IEEE80211_STYPE_RTS 0x00B0
61#define IEEE80211_STYPE_CTS 0x00C0
62#define IEEE80211_STYPE_ACK 0x00D0
63#define IEEE80211_STYPE_CFEND 0x00E0
64#define IEEE80211_STYPE_CFENDACK 0x00F0
65
66/* data */
67#define IEEE80211_STYPE_DATA 0x0000
68#define IEEE80211_STYPE_DATA_CFACK 0x0010
69#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
70#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
71#define IEEE80211_STYPE_NULLFUNC 0x0040
72#define IEEE80211_STYPE_CFACK 0x0050
73#define IEEE80211_STYPE_CFPOLL 0x0060
74#define IEEE80211_STYPE_CFACKPOLL 0x0070
75#define IEEE80211_STYPE_QOS_DATA 0x0080
76#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
77#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
78#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
79#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
80#define IEEE80211_STYPE_QOS_CFACK 0x00D0
81#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
82#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
83
84
85/* miscellaneous IEEE 802.11 constants */
c237899d
MW		 86#define IEEE80211_MAX_FRAG_THRESHOLD 2352
87#define IEEE80211_MAX_RTS_THRESHOLD 2353
a9de8ce0
JB		 88#define IEEE80211_MAX_AID 2007
89#define IEEE80211_MAX_TIM_LEN 251
a9de8ce0
JB		 90/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
91 6.2.1.1.2.
92
c237899d
MW		 93 802.11e clarifies the figure in section 7.1.2. The frame body is
94 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
95#define IEEE80211_MAX_DATA_LEN 2304
96/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
97#define IEEE80211_MAX_FRAME_LEN 2352
a9de8ce0
JB		 98
99#define IEEE80211_MAX_SSID_LEN 32
37c57989 100#define IEEE80211_MAX_MESH_ID_LEN 32
fd7c8a40 101#define IEEE80211_QOS_CTL_LEN 2
238f74a2
HH		 102#define IEEE80211_QOS_CTL_TID_MASK 0x000F
103#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
a9de8ce0
JB		 104
105struct ieee80211_hdr {
106 __le16 frame_control;
107 __le16 duration_id;
108 u8 addr1[6];
109 u8 addr2[6];
110 u8 addr3[6];
111 __le16 seq_ctrl;
112 u8 addr4[6];
113} __attribute__ ((packed));
114
fd7c8a40
HH		 115/**
116 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
117 * @fc: frame control bytes in little-endian byteorder
118 */
119static inline int ieee80211_has_tods(__le16 fc)
120{
121 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
122}
123
124/**
125 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
126 * @fc: frame control bytes in little-endian byteorder
127 */
128static inline int ieee80211_has_fromds(__le16 fc)
129{
130 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
131}
132
133/**
134 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
135 * @fc: frame control bytes in little-endian byteorder
136 */
137static inline int ieee80211_has_a4(__le16 fc)
138{
139 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
140 return (fc & tmp) == tmp;
141}
142
143/**
144 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
145 * @fc: frame control bytes in little-endian byteorder
146 */
147static inline int ieee80211_has_morefrags(__le16 fc)
148{
149 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
150}
151
152/**
153 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
154 * @fc: frame control bytes in little-endian byteorder
155 */
156static inline int ieee80211_has_retry(__le16 fc)
157{
158 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
159}
160
161/**
162 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
163 * @fc: frame control bytes in little-endian byteorder
164 */
165static inline int ieee80211_has_pm(__le16 fc)
166{
167 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
168}
169
170/**
171 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
172 * @fc: frame control bytes in little-endian byteorder
173 */
174static inline int ieee80211_has_moredata(__le16 fc)
175{
176 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
177}
178
179/**
180 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
181 * @fc: frame control bytes in little-endian byteorder
182 */
183static inline int ieee80211_has_protected(__le16 fc)
184{
185 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
186}
187
188/**
189 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
190 * @fc: frame control bytes in little-endian byteorder
191 */
192static inline int ieee80211_has_order(__le16 fc)
193{
194 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
195}
196
197/**
198 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
199 * @fc: frame control bytes in little-endian byteorder
200 */
201static inline int ieee80211_is_mgmt(__le16 fc)
202{
203 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
204 cpu_to_le16(IEEE80211_FTYPE_MGMT);
205}
206
207/**
208 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
209 * @fc: frame control bytes in little-endian byteorder
210 */
211static inline int ieee80211_is_ctl(__le16 fc)
212{
213 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
214 cpu_to_le16(IEEE80211_FTYPE_CTL);
215}
216
217/**
218 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
219 * @fc: frame control bytes in little-endian byteorder
220 */
221static inline int ieee80211_is_data(__le16 fc)
222{
223 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
224 cpu_to_le16(IEEE80211_FTYPE_DATA);
225}
226
227/**
228 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
229 * @fc: frame control bytes in little-endian byteorder
230 */
231static inline int ieee80211_is_data_qos(__le16 fc)
232{
233 /*
234 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
235 * to check the one bit
236 */
237 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
238 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
239}
240
241/**
242 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
243 * @fc: frame control bytes in little-endian byteorder
244 */
245static inline int ieee80211_is_data_present(__le16 fc)
246{
247 /*
248 * mask with 0x40 and test that that bit is clear to only return true
249 * for the data-containing substypes.
250 */
251 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
252 cpu_to_le16(IEEE80211_FTYPE_DATA);
253}
254
255/**
256 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
257 * @fc: frame control bytes in little-endian byteorder
258 */
259static inline int ieee80211_is_assoc_req(__le16 fc)
260{
261 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
262 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
263}
264
265/**
266 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
267 * @fc: frame control bytes in little-endian byteorder
268 */
269static inline int ieee80211_is_assoc_resp(__le16 fc)
270{
271 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
272 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
273}
274
275/**
276 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
277 * @fc: frame control bytes in little-endian byteorder
278 */
279static inline int ieee80211_is_reassoc_req(__le16 fc)
280{
281 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
282 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
283}
284
285/**
286 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
287 * @fc: frame control bytes in little-endian byteorder
288 */
289static inline int ieee80211_is_reassoc_resp(__le16 fc)
290{
291 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
292 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
293}
294
295/**
296 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
297 * @fc: frame control bytes in little-endian byteorder
298 */
299static inline int ieee80211_is_probe_req(__le16 fc)
300{
301 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
302 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
303}
304
305/**
306 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
307 * @fc: frame control bytes in little-endian byteorder
308 */
309static inline int ieee80211_is_probe_resp(__le16 fc)
310{
311 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
312 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
313}
314
315/**
316 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
317 * @fc: frame control bytes in little-endian byteorder
318 */
319static inline int ieee80211_is_beacon(__le16 fc)
320{
321 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
322 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
323}
324
325/**
326 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
327 * @fc: frame control bytes in little-endian byteorder
328 */
329static inline int ieee80211_is_atim(__le16 fc)
330{
331 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
332 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
333}
334
335/**
336 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
337 * @fc: frame control bytes in little-endian byteorder
338 */
339static inline int ieee80211_is_disassoc(__le16 fc)
340{
341 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
342 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
343}
344
345/**
346 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
347 * @fc: frame control bytes in little-endian byteorder
348 */
349static inline int ieee80211_is_auth(__le16 fc)
350{
351 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
352 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
353}
354
355/**
356 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
357 * @fc: frame control bytes in little-endian byteorder
358 */
359static inline int ieee80211_is_deauth(__le16 fc)
360{
361 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
362 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
363}
364
365/**
366 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
367 * @fc: frame control bytes in little-endian byteorder
368 */
369static inline int ieee80211_is_action(__le16 fc)
370{
371 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
372 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
373}
374
375/**
376 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
377 * @fc: frame control bytes in little-endian byteorder
378 */
379static inline int ieee80211_is_back_req(__le16 fc)
380{
381 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
382 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
383}
384
385/**
386 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
387 * @fc: frame control bytes in little-endian byteorder
388 */
389static inline int ieee80211_is_back(__le16 fc)
390{
391 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
392 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
393}
394
395/**
396 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
397 * @fc: frame control bytes in little-endian byteorder
398 */
399static inline int ieee80211_is_pspoll(__le16 fc)
400{
401 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
402 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
403}
404
405/**
406 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
407 * @fc: frame control bytes in little-endian byteorder
408 */
409static inline int ieee80211_is_rts(__le16 fc)
410{
411 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
412 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
413}
414
415/**
416 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
417 * @fc: frame control bytes in little-endian byteorder
418 */
419static inline int ieee80211_is_cts(__le16 fc)
420{
421 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
422 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
423}
424
425/**
426 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
427 * @fc: frame control bytes in little-endian byteorder
428 */
429static inline int ieee80211_is_ack(__le16 fc)
430{
431 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
432 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
433}
434
435/**
436 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
437 * @fc: frame control bytes in little-endian byteorder
438 */
439static inline int ieee80211_is_cfend(__le16 fc)
440{
441 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
442 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
443}
444
445/**
446 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
447 * @fc: frame control bytes in little-endian byteorder
448 */
449static inline int ieee80211_is_cfendack(__le16 fc)
450{
451 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
452 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
453}
454
455/**
456 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC
457 * @fc: frame control bytes in little-endian byteorder
458 */
459static inline int ieee80211_is_nullfunc(__le16 fc)
460{
461 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
462 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
463}
a9de8ce0 464
37c57989
LCC		 465struct ieee80211s_hdr {
466 u8 flags;
467 u8 ttl;
51ceddad 468 __le32 seqnum;
37c57989
LCC		 469 u8 eaddr1[6];
470 u8 eaddr2[6];
471 u8 eaddr3[6];
472} __attribute__ ((packed));
473
79617dee
Y		 474/* Mesh flags */
475#define MESH_FLAGS_AE_A4 0x1
476#define MESH_FLAGS_AE_A5_A6 0x2
477#define MESH_FLAGS_PS_DEEP 0x4
478
f2df3859
AK		 479/**
480 * struct ieee80211_quiet_ie
481 *
482 * This structure refers to "Quiet information element"
483 */
484struct ieee80211_quiet_ie {
485 u8 count;
486 u8 period;
487 __le16 duration;
488 __le16 offset;
489} __attribute__ ((packed));
490
491/**
492 * struct ieee80211_msrment_ie
493 *
494 * This structure refers to "Measurement Request/Report information element"
495 */
496struct ieee80211_msrment_ie {
497 u8 token;
498 u8 mode;
499 u8 type;
500 u8 request[0];
501} __attribute__ ((packed));
502
503/**
504 * struct ieee80211_channel_sw_ie
505 *
506 * This structure refers to "Channel Switch Announcement information element"
507 */
508struct ieee80211_channel_sw_ie {
509 u8 mode;
510 u8 new_ch_num;
511 u8 count;
512} __attribute__ ((packed));
37c57989 513
98f7dfd8
EG		 514/**
515 * struct ieee80211_tim
516 *
517 * This structure refers to "Traffic Indication Map information element"
518 */
519struct ieee80211_tim_ie {
520 u8 dtim_count;
521 u8 dtim_period;
522 u8 bitmap_ctrl;
523 /* variable size: 1 - 251 bytes */
524 u8 virtual_map[0];
525} __attribute__ ((packed));
526
a9de8ce0
JB		 527struct ieee80211_mgmt {
528 __le16 frame_control;
529 __le16 duration;
530 u8 da[6];
531 u8 sa[6];
532 u8 bssid[6];
533 __le16 seq_ctrl;
534 union {
535 struct {
536 __le16 auth_alg;
537 __le16 auth_transaction;
538 __le16 status_code;
539 /* possibly followed by Challenge text */
540 u8 variable[0];
541 } __attribute__ ((packed)) auth;
542 struct {
543 __le16 reason_code;
544 } __attribute__ ((packed)) deauth;
545 struct {
546 __le16 capab_info;
547 __le16 listen_interval;
548 /* followed by SSID and Supported rates */
549 u8 variable[0];
550 } __attribute__ ((packed)) assoc_req;
551 struct {
552 __le16 capab_info;
553 __le16 status_code;
554 __le16 aid;
555 /* followed by Supported rates */
556 u8 variable[0];
557 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
558 struct {
559 __le16 capab_info;
560 __le16 listen_interval;
561 u8 current_ap[6];
562 /* followed by SSID and Supported rates */
563 u8 variable[0];
564 } __attribute__ ((packed)) reassoc_req;
565 struct {
566 __le16 reason_code;
567 } __attribute__ ((packed)) disassoc;
568 struct {
569 __le64 timestamp;
570 __le16 beacon_int;
571 __le16 capab_info;
572 /* followed by some of SSID, Supported rates,
573 * FH Params, DS Params, CF Params, IBSS Params, TIM */
574 u8 variable[0];
575 } __attribute__ ((packed)) beacon;
576 struct {
577 /* only variable items: SSID, Supported rates */
578 u8 variable[0];
579 } __attribute__ ((packed)) probe_req;
580 struct {
581 __le64 timestamp;
582 __le16 beacon_int;
583 __le16 capab_info;
584 /* followed by some of SSID, Supported rates,
585 * FH Params, DS Params, CF Params, IBSS Params */
586 u8 variable[0];
587 } __attribute__ ((packed)) probe_resp;
588 struct {
589 u8 category;
590 union {
591 struct {
592 u8 action_code;
593 u8 dialog_token;
594 u8 status_code;
595 u8 variable[0];
596 } __attribute__ ((packed)) wme_action;
597 struct{
598 u8 action_code;
599 u8 element_id;
600 u8 length;
f2df3859 601 struct ieee80211_channel_sw_ie sw_elem;
a9de8ce0 602 } __attribute__((packed)) chan_switch;
f2df3859
AK		 603 struct{
604 u8 action_code;
605 u8 dialog_token;
606 u8 element_id;
607 u8 length;
608 struct ieee80211_msrment_ie msr_elem;
609 } __attribute__((packed)) measurement;
6b4e3241
RR		 610 struct{
611 u8 action_code;
612 u8 dialog_token;
613 __le16 capab;
614 __le16 timeout;
615 __le16 start_seq_num;
616 } __attribute__((packed)) addba_req;
617 struct{
618 u8 action_code;
619 u8 dialog_token;
620 __le16 status;
621 __le16 capab;
622 __le16 timeout;
623 } __attribute__((packed)) addba_resp;
624 struct{
625 u8 action_code;
626 __le16 params;
627 __le16 reason_code;
628 } __attribute__((packed)) delba;
37c57989
LCC		 629 struct{
630 u8 action_code;
631 /* capab_info for open and confirm,
632 * reason for close
633 */
634 __le16 aux;
635 /* Followed in plink_confirm by status
636 * code, AID and supported rates,
637 * and directly by supported rates in
638 * plink_open and plink_close
639 */
640 u8 variable[0];
641 } __attribute__((packed)) plink_action;
642 struct{
643 u8 action_code;
644 u8 variable[0];
645 } __attribute__((packed)) mesh_action;
a9de8ce0
JB		 646 } u;
647 } __attribute__ ((packed)) action;
648 } u;
649} __attribute__ ((packed));
650
44d414db
JB		 651/* mgmt header + 1 byte category code */
652#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
653
a9de8ce0
JB		 654
655/* Control frames */
656struct ieee80211_rts {
657 __le16 frame_control;
658 __le16 duration;
659 u8 ra[6];
660 u8 ta[6];
661} __attribute__ ((packed));
662
663struct ieee80211_cts {
664 __le16 frame_control;
665 __le16 duration;
666 u8 ra[6];
667} __attribute__ ((packed));
668
6b4e3241
RR		 669/**
670 * struct ieee80211_bar - HT Block Ack Request
671 *
672 * This structure refers to "HT BlockAckReq" as
673 * described in 802.11n draft section 7.2.1.7.1
674 */
675struct ieee80211_bar {
676 __le16 frame_control;
677 __le16 duration;
678 __u8 ra[6];
679 __u8 ta[6];
a8b47ea3
RR		 680 __le16 control;
681 __le16 start_seq_num;
6b4e3241
RR		 682} __attribute__((packed));
683
429a3805
RR		 684/* 802.11 BAR control masks */
685#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
686#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
687
d9fe60de
JB		 688
689#define IEEE80211_HT_MCS_MASK_LEN 10
690
691/**
692 * struct ieee80211_mcs_info - MCS information
693 * @rx_mask: RX mask
694 * @rx_highest: highest supported RX rate
695 * @tx_params: TX parameters
696 */
697struct ieee80211_mcs_info {
698 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
699 __le16 rx_highest;
700 u8 tx_params;
701 u8 reserved[3];
702} __attribute__((packed));
703
704/* 802.11n HT capability MSC set */
705#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
706#define IEEE80211_HT_MCS_TX_DEFINED 0x01
707#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
708/* value 0 == 1 stream etc */
709#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
710#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
711#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
712#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
713
714/*
715 * 802.11n D5.0 20.3.5 / 20.6 says:
716 * - indices 0 to 7 and 32 are single spatial stream
717 * - 8 to 31 are multiple spatial streams using equal modulation
718 * [8..15 for two streams, 16..23 for three and 24..31 for four]
719 * - remainder are multiple spatial streams using unequal modulation
720 */
721#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
722#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
723 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
724
6b4e3241
RR		 725/**
726 * struct ieee80211_ht_cap - HT capabilities
727 *
d9fe60de
JB		 728 * This structure is the "HT capabilities element" as
729 * described in 802.11n D5.0 7.3.2.57
6b4e3241
RR		 730 */
731struct ieee80211_ht_cap {
732 __le16 cap_info;
733 u8 ampdu_params_info;
d9fe60de
JB		 734
735 /* 16 bytes MCS information */
736 struct ieee80211_mcs_info mcs;
737
6b4e3241
RR		 738 __le16 extended_ht_cap_info;
739 __le32 tx_BF_cap_info;
740 u8 antenna_selection_info;
741} __attribute__ ((packed));
742
d9fe60de
JB		 743/* 802.11n HT capabilities masks (for cap_info) */
744#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
745#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
746#define IEEE80211_HT_CAP_SM_PS 0x000C
747#define IEEE80211_HT_CAP_GRN_FLD 0x0010
748#define IEEE80211_HT_CAP_SGI_20 0x0020
749#define IEEE80211_HT_CAP_SGI_40 0x0040
750#define IEEE80211_HT_CAP_TX_STBC 0x0080
751#define IEEE80211_HT_CAP_RX_STBC 0x0300
752#define IEEE80211_HT_CAP_DELAY_BA 0x0400
753#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
754#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
755#define IEEE80211_HT_CAP_PSMP_SUPPORT 0x2000
756#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
757#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
758
759/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
760#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
761#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
762
6b4e3241 763/**
d9fe60de 764 * struct ieee80211_ht_info - HT information
6b4e3241 765 *
d9fe60de
JB		 766 * This structure is the "HT information element" as
767 * described in 802.11n D5.0 7.3.2.58
6b4e3241 768 */
d9fe60de 769struct ieee80211_ht_info {
6b4e3241
RR		 770 u8 control_chan;
771 u8 ht_param;
772 __le16 operation_mode;
773 __le16 stbc_param;
774 u8 basic_set[16];
775} __attribute__ ((packed));
776
d9fe60de
JB		 777/* for ht_param */
778#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
779#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
780#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
781#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
782#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
783#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
784#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
785#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
786
787/* for operation_mode */
788#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
789#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
790#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
791#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
792#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
793#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
794#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
795
796/* for stbc_param */
797#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
798#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
799#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
800#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
801#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
802#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
803
a9de8ce0 804
44d414db
JB		 805/* block-ack parameters */
806#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
807#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
808#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
809#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
810#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
811
812/*
813 * A-PMDU buffer sizes
814 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
815 */
816#define IEEE80211_MIN_AMPDU_BUF 0x8
817#define IEEE80211_MAX_AMPDU_BUF 0x40
818
819
00c5ae2f
TW		 820/* Spatial Multiplexing Power Save Modes */
821#define WLAN_HT_CAP_SM_PS_STATIC 0
822#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
823#define WLAN_HT_CAP_SM_PS_INVALID 2
824#define WLAN_HT_CAP_SM_PS_DISABLED 3
e53cfe0e 825
a9de8ce0
JB		 826/* Authentication algorithms */
827#define WLAN_AUTH_OPEN 0
828#define WLAN_AUTH_SHARED_KEY 1
829#define WLAN_AUTH_FAST_BSS_TRANSITION 2
830#define WLAN_AUTH_LEAP 128
831
832#define WLAN_AUTH_CHALLENGE_LEN 128
833
834#define WLAN_CAPABILITY_ESS (1<<0)
835#define WLAN_CAPABILITY_IBSS (1<<1)
836#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
837#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
838#define WLAN_CAPABILITY_PRIVACY (1<<4)
839#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
840#define WLAN_CAPABILITY_PBCC (1<<6)
841#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
b6623486 842
a9de8ce0
JB		 843/* 802.11h */
844#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
845#define WLAN_CAPABILITY_QOS (1<<9)
846#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
847#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
b6623486
AK		 848/* measurement */
849#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
850#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
851#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
852
853#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
854#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
855#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
856
a9de8ce0 857
5628221c
DD		 858/* 802.11g ERP information element */
859#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
860#define WLAN_ERP_USE_PROTECTION (1<<1)
861#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
862
863/* WLAN_ERP_BARKER_PREAMBLE values */
864enum {
865 WLAN_ERP_PREAMBLE_SHORT = 0,
866 WLAN_ERP_PREAMBLE_LONG = 1,
867};
868
a9de8ce0
JB		 869/* Status codes */
870enum ieee80211_statuscode {
871 WLAN_STATUS_SUCCESS = 0,
872 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
873 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
874 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
875 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
876 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
877 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
878 WLAN_STATUS_CHALLENGE_FAIL = 15,
879 WLAN_STATUS_AUTH_TIMEOUT = 16,
880 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
881 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
882 /* 802.11b */
883 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
884 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
885 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
886 /* 802.11h */
887 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
888 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
889 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
890 /* 802.11g */
891 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
892 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
893 /* 802.11i */
894 WLAN_STATUS_INVALID_IE = 40,
895 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
896 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
897 WLAN_STATUS_INVALID_AKMP = 43,
898 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
899 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
900 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
6b4e3241
RR		 901 /* 802.11e */
902 WLAN_STATUS_UNSPECIFIED_QOS = 32,
903 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
904 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
905 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
906 WLAN_STATUS_REQUEST_DECLINED = 37,
907 WLAN_STATUS_INVALID_QOS_PARAM = 38,
908 WLAN_STATUS_CHANGE_TSPEC = 39,
909 WLAN_STATUS_WAIT_TS_DELAY = 47,
910 WLAN_STATUS_NO_DIRECT_LINK = 48,
911 WLAN_STATUS_STA_NOT_PRESENT = 49,
912 WLAN_STATUS_STA_NOT_QSTA = 50,
a9de8ce0
JB		 913};
914
915
916/* Reason codes */
917enum ieee80211_reasoncode {
918 WLAN_REASON_UNSPECIFIED = 1,
919 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
920 WLAN_REASON_DEAUTH_LEAVING = 3,
921 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
922 WLAN_REASON_DISASSOC_AP_BUSY = 5,
923 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
924 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
925 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
926 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
927 /* 802.11h */
928 WLAN_REASON_DISASSOC_BAD_POWER = 10,
929 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
930 /* 802.11i */
931 WLAN_REASON_INVALID_IE = 13,
932 WLAN_REASON_MIC_FAILURE = 14,
933 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
934 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
935 WLAN_REASON_IE_DIFFERENT = 17,
936 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
937 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
938 WLAN_REASON_INVALID_AKMP = 20,
939 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
940 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
941 WLAN_REASON_IEEE8021X_FAILED = 23,
942 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
6b4e3241
RR		 943 /* 802.11e */
944 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
945 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
946 WLAN_REASON_DISASSOC_LOW_ACK = 34,
947 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
948 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
949 WLAN_REASON_QSTA_NOT_USE = 37,
950 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
951 WLAN_REASON_QSTA_TIMEOUT = 39,
952 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
a9de8ce0
JB		 953};
954
955
956/* Information Element IDs */
957enum ieee80211_eid {
958 WLAN_EID_SSID = 0,
959 WLAN_EID_SUPP_RATES = 1,
960 WLAN_EID_FH_PARAMS = 2,
961 WLAN_EID_DS_PARAMS = 3,
962 WLAN_EID_CF_PARAMS = 4,
963 WLAN_EID_TIM = 5,
964 WLAN_EID_IBSS_PARAMS = 6,
965 WLAN_EID_CHALLENGE = 16,
966 /* 802.11d */
967 WLAN_EID_COUNTRY = 7,
968 WLAN_EID_HP_PARAMS = 8,
969 WLAN_EID_HP_TABLE = 9,
970 WLAN_EID_REQUEST = 10,
6b4e3241
RR		 971 /* 802.11e */
972 WLAN_EID_QBSS_LOAD = 11,
973 WLAN_EID_EDCA_PARAM_SET = 12,
974 WLAN_EID_TSPEC = 13,
975 WLAN_EID_TCLAS = 14,
976 WLAN_EID_SCHEDULE = 15,
977 WLAN_EID_TS_DELAY = 43,
978 WLAN_EID_TCLAS_PROCESSING = 44,
979 WLAN_EID_QOS_CAPA = 46,
d619ee08
LCC		 980 /* 802.11s
981 *
982 * All mesh EID numbers are pending IEEE 802.11 ANA approval.
983 * The numbers have been incremented from those suggested in
984 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
985 * EXT_SUPP_RATES.
986 */
987 WLAN_EID_MESH_CONFIG = 51,
988 WLAN_EID_MESH_ID = 52,
989 WLAN_EID_PEER_LINK = 55,
990 WLAN_EID_PREQ = 68,
991 WLAN_EID_PREP = 69,
992 WLAN_EID_PERR = 70,
a9de8ce0
JB		 993 /* 802.11h */
994 WLAN_EID_PWR_CONSTRAINT = 32,
995 WLAN_EID_PWR_CAPABILITY = 33,
996 WLAN_EID_TPC_REQUEST = 34,
997 WLAN_EID_TPC_REPORT = 35,
998 WLAN_EID_SUPPORTED_CHANNELS = 36,
999 WLAN_EID_CHANNEL_SWITCH = 37,
1000 WLAN_EID_MEASURE_REQUEST = 38,
1001 WLAN_EID_MEASURE_REPORT = 39,
1002 WLAN_EID_QUIET = 40,
1003 WLAN_EID_IBSS_DFS = 41,
1004 /* 802.11g */
1005 WLAN_EID_ERP_INFO = 42,
1006 WLAN_EID_EXT_SUPP_RATES = 50,
6b4e3241
RR		 1007 /* 802.11n */
1008 WLAN_EID_HT_CAPABILITY = 45,
d9fe60de 1009 WLAN_EID_HT_INFORMATION = 61,
a9de8ce0
JB		 1010 /* 802.11i */
1011 WLAN_EID_RSN = 48,
1012 WLAN_EID_WPA = 221,
1013 WLAN_EID_GENERIC = 221,
1014 WLAN_EID_VENDOR_SPECIFIC = 221,
1015 WLAN_EID_QOS_PARAMETER = 222
1016};
1017
6b4e3241
RR		 1018/* Action category code */
1019enum ieee80211_category {
1020 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1021 WLAN_CATEGORY_QOS = 1,
1022 WLAN_CATEGORY_DLS = 2,
1023 WLAN_CATEGORY_BACK = 3,
1024 WLAN_CATEGORY_WMM = 17,
1025};
1026
f2df3859
AK		 1027/* SPECTRUM_MGMT action code */
1028enum ieee80211_spectrum_mgmt_actioncode {
1029 WLAN_ACTION_SPCT_MSR_REQ = 0,
1030 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1031 WLAN_ACTION_SPCT_TPC_REQ = 2,
1032 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1033 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1034};
1035
6b4e3241
RR		 1036/* BACK action code */
1037enum ieee80211_back_actioncode {
1038 WLAN_ACTION_ADDBA_REQ = 0,
1039 WLAN_ACTION_ADDBA_RESP = 1,
1040 WLAN_ACTION_DELBA = 2,
1041};
1042
07db2183
RR		 1043/* BACK (block-ack) parties */
1044enum ieee80211_back_parties {
1045 WLAN_BACK_RECIPIENT = 0,
1046 WLAN_BACK_INITIATOR = 1,
1047 WLAN_BACK_TIMER = 2,
1048};
1049
6b4e3241
RR		 1050/* A-MSDU 802.11n */
1051#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1052
a9de8ce0
JB		 1053/* cipher suite selectors */
1054#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1055#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1056#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1057/* reserved: 0x000FAC03 */
1058#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1059#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
1060
1061#define WLAN_MAX_KEY_LEN 32
1062
fd7c8a40
HH		 1063/**
1064 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1065 * @hdr: the frame
1066 *
1067 * The qos ctrl bytes come after the frame_control, duration, seq_num
1068 * and 3 or 4 addresses of length ETH_ALEN.
1069 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1070 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1071 */
1072static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1073{
1074 if (ieee80211_has_a4(hdr->frame_control))
1075 return (u8 *)hdr + 30;
1076 else
1077 return (u8 *)hdr + 24;
1078}
1079
f97df02e
JB		 1080/**
1081 * ieee80211_get_SA - get pointer to SA
fd7c8a40 1082 * @hdr: the frame
f97df02e
JB		 1083 *
1084 * Given an 802.11 frame, this function returns the offset
1085 * to the source address (SA). It does not verify that the
1086 * header is long enough to contain the address, and the
1087 * header must be long enough to contain the frame control
1088 * field.
f97df02e
JB		 1089 */
1090static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1091{
fd7c8a40 1092 if (ieee80211_has_a4(hdr->frame_control))
5a433b3a 1093 return hdr->addr4;
fd7c8a40
HH		 1094 if (ieee80211_has_fromds(hdr->frame_control))
1095 return hdr->addr3;
1096 return hdr->addr2;
f97df02e
JB		 1097}
1098
1099/**
1100 * ieee80211_get_DA - get pointer to DA
fd7c8a40 1101 * @hdr: the frame
f97df02e
JB		 1102 *
1103 * Given an 802.11 frame, this function returns the offset
1104 * to the destination address (DA). It does not verify that
1105 * the header is long enough to contain the address, and the
1106 * header must be long enough to contain the frame control
1107 * field.
f97df02e
JB		 1108 */
1109static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1110{
fd7c8a40 1111 if (ieee80211_has_tods(hdr->frame_control))
f97df02e 1112 return hdr->addr3;
5a433b3a
HH		 1113 else
1114 return hdr->addr1;
f97df02e
JB		 1115}
1116
a9de8ce0 1117#endif /* IEEE80211_H */
Linux kernel - Deliverables
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