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mac80211: 11h Infrastructure - Parsing
[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
a9de8ce0
JB		 102
103struct ieee80211_hdr {
104 __le16 frame_control;
105 __le16 duration_id;
106 u8 addr1[6];
107 u8 addr2[6];
108 u8 addr3[6];
109 __le16 seq_ctrl;
110 u8 addr4[6];
111} __attribute__ ((packed));
112
fd7c8a40
HH		 113/**
114 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
115 * @fc: frame control bytes in little-endian byteorder
116 */
117static inline int ieee80211_has_tods(__le16 fc)
118{
119 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
120}
121
122/**
123 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
124 * @fc: frame control bytes in little-endian byteorder
125 */
126static inline int ieee80211_has_fromds(__le16 fc)
127{
128 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
129}
130
131/**
132 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
133 * @fc: frame control bytes in little-endian byteorder
134 */
135static inline int ieee80211_has_a4(__le16 fc)
136{
137 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
138 return (fc & tmp) == tmp;
139}
140
141/**
142 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
143 * @fc: frame control bytes in little-endian byteorder
144 */
145static inline int ieee80211_has_morefrags(__le16 fc)
146{
147 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
148}
149
150/**
151 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
152 * @fc: frame control bytes in little-endian byteorder
153 */
154static inline int ieee80211_has_retry(__le16 fc)
155{
156 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
157}
158
159/**
160 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
161 * @fc: frame control bytes in little-endian byteorder
162 */
163static inline int ieee80211_has_pm(__le16 fc)
164{
165 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
166}
167
168/**
169 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
170 * @fc: frame control bytes in little-endian byteorder
171 */
172static inline int ieee80211_has_moredata(__le16 fc)
173{
174 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
175}
176
177/**
178 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
179 * @fc: frame control bytes in little-endian byteorder
180 */
181static inline int ieee80211_has_protected(__le16 fc)
182{
183 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
184}
185
186/**
187 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
188 * @fc: frame control bytes in little-endian byteorder
189 */
190static inline int ieee80211_has_order(__le16 fc)
191{
192 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
193}
194
195/**
196 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
197 * @fc: frame control bytes in little-endian byteorder
198 */
199static inline int ieee80211_is_mgmt(__le16 fc)
200{
201 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
202 cpu_to_le16(IEEE80211_FTYPE_MGMT);
203}
204
205/**
206 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
207 * @fc: frame control bytes in little-endian byteorder
208 */
209static inline int ieee80211_is_ctl(__le16 fc)
210{
211 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
212 cpu_to_le16(IEEE80211_FTYPE_CTL);
213}
214
215/**
216 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
217 * @fc: frame control bytes in little-endian byteorder
218 */
219static inline int ieee80211_is_data(__le16 fc)
220{
221 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
222 cpu_to_le16(IEEE80211_FTYPE_DATA);
223}
224
225/**
226 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
227 * @fc: frame control bytes in little-endian byteorder
228 */
229static inline int ieee80211_is_data_qos(__le16 fc)
230{
231 /*
232 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
233 * to check the one bit
234 */
235 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
236 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
237}
238
239/**
240 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
241 * @fc: frame control bytes in little-endian byteorder
242 */
243static inline int ieee80211_is_data_present(__le16 fc)
244{
245 /*
246 * mask with 0x40 and test that that bit is clear to only return true
247 * for the data-containing substypes.
248 */
249 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
250 cpu_to_le16(IEEE80211_FTYPE_DATA);
251}
252
253/**
254 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
255 * @fc: frame control bytes in little-endian byteorder
256 */
257static inline int ieee80211_is_assoc_req(__le16 fc)
258{
259 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
260 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
261}
262
263/**
264 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
265 * @fc: frame control bytes in little-endian byteorder
266 */
267static inline int ieee80211_is_assoc_resp(__le16 fc)
268{
269 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
270 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
271}
272
273/**
274 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
275 * @fc: frame control bytes in little-endian byteorder
276 */
277static inline int ieee80211_is_reassoc_req(__le16 fc)
278{
279 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
280 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
281}
282
283/**
284 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
285 * @fc: frame control bytes in little-endian byteorder
286 */
287static inline int ieee80211_is_reassoc_resp(__le16 fc)
288{
289 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
290 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
291}
292
293/**
294 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
295 * @fc: frame control bytes in little-endian byteorder
296 */
297static inline int ieee80211_is_probe_req(__le16 fc)
298{
299 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
300 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
301}
302
303/**
304 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
305 * @fc: frame control bytes in little-endian byteorder
306 */
307static inline int ieee80211_is_probe_resp(__le16 fc)
308{
309 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
310 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
311}
312
313/**
314 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
315 * @fc: frame control bytes in little-endian byteorder
316 */
317static inline int ieee80211_is_beacon(__le16 fc)
318{
319 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
320 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
321}
322
323/**
324 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
325 * @fc: frame control bytes in little-endian byteorder
326 */
327static inline int ieee80211_is_atim(__le16 fc)
328{
329 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
330 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
331}
332
333/**
334 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
335 * @fc: frame control bytes in little-endian byteorder
336 */
337static inline int ieee80211_is_disassoc(__le16 fc)
338{
339 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
340 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
341}
342
343/**
344 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
345 * @fc: frame control bytes in little-endian byteorder
346 */
347static inline int ieee80211_is_auth(__le16 fc)
348{
349 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
350 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
351}
352
353/**
354 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
355 * @fc: frame control bytes in little-endian byteorder
356 */
357static inline int ieee80211_is_deauth(__le16 fc)
358{
359 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
360 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
361}
362
363/**
364 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
365 * @fc: frame control bytes in little-endian byteorder
366 */
367static inline int ieee80211_is_action(__le16 fc)
368{
369 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
370 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
371}
372
373/**
374 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
375 * @fc: frame control bytes in little-endian byteorder
376 */
377static inline int ieee80211_is_back_req(__le16 fc)
378{
379 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
380 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
381}
382
383/**
384 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
385 * @fc: frame control bytes in little-endian byteorder
386 */
387static inline int ieee80211_is_back(__le16 fc)
388{
389 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
390 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
391}
392
393/**
394 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
395 * @fc: frame control bytes in little-endian byteorder
396 */
397static inline int ieee80211_is_pspoll(__le16 fc)
398{
399 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
400 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
401}
402
403/**
404 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
405 * @fc: frame control bytes in little-endian byteorder
406 */
407static inline int ieee80211_is_rts(__le16 fc)
408{
409 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
410 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
411}
412
413/**
414 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
415 * @fc: frame control bytes in little-endian byteorder
416 */
417static inline int ieee80211_is_cts(__le16 fc)
418{
419 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
420 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
421}
422
423/**
424 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
425 * @fc: frame control bytes in little-endian byteorder
426 */
427static inline int ieee80211_is_ack(__le16 fc)
428{
429 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
430 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
431}
432
433/**
434 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
435 * @fc: frame control bytes in little-endian byteorder
436 */
437static inline int ieee80211_is_cfend(__le16 fc)
438{
439 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
440 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
441}
442
443/**
444 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
445 * @fc: frame control bytes in little-endian byteorder
446 */
447static inline int ieee80211_is_cfendack(__le16 fc)
448{
449 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
450 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
451}
452
453/**
454 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC
455 * @fc: frame control bytes in little-endian byteorder
456 */
457static inline int ieee80211_is_nullfunc(__le16 fc)
458{
459 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
460 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
461}
a9de8ce0 462
37c57989
LCC		 463struct ieee80211s_hdr {
464 u8 flags;
465 u8 ttl;
51ceddad 466 __le32 seqnum;
37c57989
LCC		 467 u8 eaddr1[6];
468 u8 eaddr2[6];
469 u8 eaddr3[6];
470} __attribute__ ((packed));
471
f2df3859
AK		 472/**
473 * struct ieee80211_quiet_ie
474 *
475 * This structure refers to "Quiet information element"
476 */
477struct ieee80211_quiet_ie {
478 u8 count;
479 u8 period;
480 __le16 duration;
481 __le16 offset;
482} __attribute__ ((packed));
483
484/**
485 * struct ieee80211_msrment_ie
486 *
487 * This structure refers to "Measurement Request/Report information element"
488 */
489struct ieee80211_msrment_ie {
490 u8 token;
491 u8 mode;
492 u8 type;
493 u8 request[0];
494} __attribute__ ((packed));
495
496/**
497 * struct ieee80211_channel_sw_ie
498 *
499 * This structure refers to "Channel Switch Announcement information element"
500 */
501struct ieee80211_channel_sw_ie {
502 u8 mode;
503 u8 new_ch_num;
504 u8 count;
505} __attribute__ ((packed));
37c57989 506
a9de8ce0
JB		 507struct ieee80211_mgmt {
508 __le16 frame_control;
509 __le16 duration;
510 u8 da[6];
511 u8 sa[6];
512 u8 bssid[6];
513 __le16 seq_ctrl;
514 union {
515 struct {
516 __le16 auth_alg;
517 __le16 auth_transaction;
518 __le16 status_code;
519 /* possibly followed by Challenge text */
520 u8 variable[0];
521 } __attribute__ ((packed)) auth;
522 struct {
523 __le16 reason_code;
524 } __attribute__ ((packed)) deauth;
525 struct {
526 __le16 capab_info;
527 __le16 listen_interval;
528 /* followed by SSID and Supported rates */
529 u8 variable[0];
530 } __attribute__ ((packed)) assoc_req;
531 struct {
532 __le16 capab_info;
533 __le16 status_code;
534 __le16 aid;
535 /* followed by Supported rates */
536 u8 variable[0];
537 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
538 struct {
539 __le16 capab_info;
540 __le16 listen_interval;
541 u8 current_ap[6];
542 /* followed by SSID and Supported rates */
543 u8 variable[0];
544 } __attribute__ ((packed)) reassoc_req;
545 struct {
546 __le16 reason_code;
547 } __attribute__ ((packed)) disassoc;
548 struct {
549 __le64 timestamp;
550 __le16 beacon_int;
551 __le16 capab_info;
552 /* followed by some of SSID, Supported rates,
553 * FH Params, DS Params, CF Params, IBSS Params, TIM */
554 u8 variable[0];
555 } __attribute__ ((packed)) beacon;
556 struct {
557 /* only variable items: SSID, Supported rates */
558 u8 variable[0];
559 } __attribute__ ((packed)) probe_req;
560 struct {
561 __le64 timestamp;
562 __le16 beacon_int;
563 __le16 capab_info;
564 /* followed by some of SSID, Supported rates,
565 * FH Params, DS Params, CF Params, IBSS Params */
566 u8 variable[0];
567 } __attribute__ ((packed)) probe_resp;
568 struct {
569 u8 category;
570 union {
571 struct {
572 u8 action_code;
573 u8 dialog_token;
574 u8 status_code;
575 u8 variable[0];
576 } __attribute__ ((packed)) wme_action;
577 struct{
578 u8 action_code;
579 u8 element_id;
580 u8 length;
f2df3859 581 struct ieee80211_channel_sw_ie sw_elem;
a9de8ce0 582 } __attribute__((packed)) chan_switch;
f2df3859
AK		 583 struct{
584 u8 action_code;
585 u8 dialog_token;
586 u8 element_id;
587 u8 length;
588 struct ieee80211_msrment_ie msr_elem;
589 } __attribute__((packed)) measurement;
6b4e3241
RR		 590 struct{
591 u8 action_code;
592 u8 dialog_token;
593 __le16 capab;
594 __le16 timeout;
595 __le16 start_seq_num;
596 } __attribute__((packed)) addba_req;
597 struct{
598 u8 action_code;
599 u8 dialog_token;
600 __le16 status;
601 __le16 capab;
602 __le16 timeout;
603 } __attribute__((packed)) addba_resp;
604 struct{
605 u8 action_code;
606 __le16 params;
607 __le16 reason_code;
608 } __attribute__((packed)) delba;
37c57989
LCC		 609 struct{
610 u8 action_code;
611 /* capab_info for open and confirm,
612 * reason for close
613 */
614 __le16 aux;
615 /* Followed in plink_confirm by status
616 * code, AID and supported rates,
617 * and directly by supported rates in
618 * plink_open and plink_close
619 */
620 u8 variable[0];
621 } __attribute__((packed)) plink_action;
622 struct{
623 u8 action_code;
624 u8 variable[0];
625 } __attribute__((packed)) mesh_action;
a9de8ce0
JB		 626 } u;
627 } __attribute__ ((packed)) action;
628 } u;
629} __attribute__ ((packed));
630
631
632/* Control frames */
633struct ieee80211_rts {
634 __le16 frame_control;
635 __le16 duration;
636 u8 ra[6];
637 u8 ta[6];
638} __attribute__ ((packed));
639
640struct ieee80211_cts {
641 __le16 frame_control;
642 __le16 duration;
643 u8 ra[6];
644} __attribute__ ((packed));
645
6b4e3241
RR		 646/**
647 * struct ieee80211_bar - HT Block Ack Request
648 *
649 * This structure refers to "HT BlockAckReq" as
650 * described in 802.11n draft section 7.2.1.7.1
651 */
652struct ieee80211_bar {
653 __le16 frame_control;
654 __le16 duration;
655 __u8 ra[6];
656 __u8 ta[6];
a8b47ea3
RR		 657 __le16 control;
658 __le16 start_seq_num;
6b4e3241
RR		 659} __attribute__((packed));
660
661/**
662 * struct ieee80211_ht_cap - HT capabilities
663 *
664 * This structure refers to "HT capabilities element" as
665 * described in 802.11n draft section 7.3.2.52
666 */
667struct ieee80211_ht_cap {
668 __le16 cap_info;
669 u8 ampdu_params_info;
670 u8 supp_mcs_set[16];
671 __le16 extended_ht_cap_info;
672 __le32 tx_BF_cap_info;
673 u8 antenna_selection_info;
674} __attribute__ ((packed));
675
676/**
677 * struct ieee80211_ht_cap - HT additional information
678 *
679 * This structure refers to "HT information element" as
680 * described in 802.11n draft section 7.3.2.53
681 */
682struct ieee80211_ht_addt_info {
683 u8 control_chan;
684 u8 ht_param;
685 __le16 operation_mode;
686 __le16 stbc_param;
687 u8 basic_set[16];
688} __attribute__ ((packed));
689
690/* 802.11n HT capabilities masks */
691#define IEEE80211_HT_CAP_SUP_WIDTH 0x0002
692#define IEEE80211_HT_CAP_MIMO_PS 0x000C
693#define IEEE80211_HT_CAP_GRN_FLD 0x0010
694#define IEEE80211_HT_CAP_SGI_20 0x0020
695#define IEEE80211_HT_CAP_SGI_40 0x0040
696#define IEEE80211_HT_CAP_DELAY_BA 0x0400
697#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
edcdf8b2 698/* 802.11n HT capability AMPDU settings */
6b4e3241
RR		 699#define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03
700#define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C
edcdf8b2
RR		 701/* 802.11n HT capability MSC set */
702#define IEEE80211_SUPP_MCS_SET_UEQM 4
703#define IEEE80211_HT_CAP_MAX_STREAMS 4
704#define IEEE80211_SUPP_MCS_SET_LEN 10
705/* maximum streams the spec allows */
706#define IEEE80211_HT_CAP_MCS_TX_DEFINED 0x01
707#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF 0x02
708#define IEEE80211_HT_CAP_MCS_TX_STREAMS 0x0C
709#define IEEE80211_HT_CAP_MCS_TX_UEQM 0x10
6b4e3241
RR		 710/* 802.11n HT IE masks */
711#define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03
963f5517 712#define IEEE80211_HT_IE_CHA_SEC_NONE 0x00
9306102e
EG		 713#define IEEE80211_HT_IE_CHA_SEC_ABOVE 0x01
714#define IEEE80211_HT_IE_CHA_SEC_BELOW 0x03
6b4e3241
RR		 715#define IEEE80211_HT_IE_CHA_WIDTH 0x04
716#define IEEE80211_HT_IE_HT_PROTECTION 0x0003
717#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004
718#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010
a9de8ce0 719
e53cfe0e 720/* MIMO Power Save Modes */
edcdf8b2
RR		 721#define WLAN_HT_CAP_MIMO_PS_STATIC 0
722#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1
723#define WLAN_HT_CAP_MIMO_PS_INVALID 2
724#define WLAN_HT_CAP_MIMO_PS_DISABLED 3
e53cfe0e 725
a9de8ce0
JB		 726/* Authentication algorithms */
727#define WLAN_AUTH_OPEN 0
728#define WLAN_AUTH_SHARED_KEY 1
729#define WLAN_AUTH_FAST_BSS_TRANSITION 2
730#define WLAN_AUTH_LEAP 128
731
732#define WLAN_AUTH_CHALLENGE_LEN 128
733
734#define WLAN_CAPABILITY_ESS (1<<0)
735#define WLAN_CAPABILITY_IBSS (1<<1)
736#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
737#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
738#define WLAN_CAPABILITY_PRIVACY (1<<4)
739#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
740#define WLAN_CAPABILITY_PBCC (1<<6)
741#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
742/* 802.11h */
743#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
744#define WLAN_CAPABILITY_QOS (1<<9)
745#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
746#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
747
5628221c
DD		 748/* 802.11g ERP information element */
749#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
750#define WLAN_ERP_USE_PROTECTION (1<<1)
751#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
752
753/* WLAN_ERP_BARKER_PREAMBLE values */
754enum {
755 WLAN_ERP_PREAMBLE_SHORT = 0,
756 WLAN_ERP_PREAMBLE_LONG = 1,
757};
758
a9de8ce0
JB		 759/* Status codes */
760enum ieee80211_statuscode {
761 WLAN_STATUS_SUCCESS = 0,
762 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
763 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
764 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
765 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
766 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
767 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
768 WLAN_STATUS_CHALLENGE_FAIL = 15,
769 WLAN_STATUS_AUTH_TIMEOUT = 16,
770 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
771 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
772 /* 802.11b */
773 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
774 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
775 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
776 /* 802.11h */
777 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
778 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
779 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
780 /* 802.11g */
781 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
782 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
783 /* 802.11i */
784 WLAN_STATUS_INVALID_IE = 40,
785 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
786 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
787 WLAN_STATUS_INVALID_AKMP = 43,
788 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
789 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
790 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
6b4e3241
RR		 791 /* 802.11e */
792 WLAN_STATUS_UNSPECIFIED_QOS = 32,
793 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
794 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
795 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
796 WLAN_STATUS_REQUEST_DECLINED = 37,
797 WLAN_STATUS_INVALID_QOS_PARAM = 38,
798 WLAN_STATUS_CHANGE_TSPEC = 39,
799 WLAN_STATUS_WAIT_TS_DELAY = 47,
800 WLAN_STATUS_NO_DIRECT_LINK = 48,
801 WLAN_STATUS_STA_NOT_PRESENT = 49,
802 WLAN_STATUS_STA_NOT_QSTA = 50,
a9de8ce0
JB		 803};
804
805
806/* Reason codes */
807enum ieee80211_reasoncode {
808 WLAN_REASON_UNSPECIFIED = 1,
809 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
810 WLAN_REASON_DEAUTH_LEAVING = 3,
811 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
812 WLAN_REASON_DISASSOC_AP_BUSY = 5,
813 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
814 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
815 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
816 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
817 /* 802.11h */
818 WLAN_REASON_DISASSOC_BAD_POWER = 10,
819 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
820 /* 802.11i */
821 WLAN_REASON_INVALID_IE = 13,
822 WLAN_REASON_MIC_FAILURE = 14,
823 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
824 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
825 WLAN_REASON_IE_DIFFERENT = 17,
826 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
827 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
828 WLAN_REASON_INVALID_AKMP = 20,
829 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
830 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
831 WLAN_REASON_IEEE8021X_FAILED = 23,
832 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
6b4e3241
RR		 833 /* 802.11e */
834 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
835 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
836 WLAN_REASON_DISASSOC_LOW_ACK = 34,
837 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
838 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
839 WLAN_REASON_QSTA_NOT_USE = 37,
840 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
841 WLAN_REASON_QSTA_TIMEOUT = 39,
842 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
a9de8ce0
JB		 843};
844
845
846/* Information Element IDs */
847enum ieee80211_eid {
848 WLAN_EID_SSID = 0,
849 WLAN_EID_SUPP_RATES = 1,
850 WLAN_EID_FH_PARAMS = 2,
851 WLAN_EID_DS_PARAMS = 3,
852 WLAN_EID_CF_PARAMS = 4,
853 WLAN_EID_TIM = 5,
854 WLAN_EID_IBSS_PARAMS = 6,
855 WLAN_EID_CHALLENGE = 16,
856 /* 802.11d */
857 WLAN_EID_COUNTRY = 7,
858 WLAN_EID_HP_PARAMS = 8,
859 WLAN_EID_HP_TABLE = 9,
860 WLAN_EID_REQUEST = 10,
6b4e3241
RR		 861 /* 802.11e */
862 WLAN_EID_QBSS_LOAD = 11,
863 WLAN_EID_EDCA_PARAM_SET = 12,
864 WLAN_EID_TSPEC = 13,
865 WLAN_EID_TCLAS = 14,
866 WLAN_EID_SCHEDULE = 15,
867 WLAN_EID_TS_DELAY = 43,
868 WLAN_EID_TCLAS_PROCESSING = 44,
869 WLAN_EID_QOS_CAPA = 46,
d619ee08
LCC		 870 /* 802.11s
871 *
872 * All mesh EID numbers are pending IEEE 802.11 ANA approval.
873 * The numbers have been incremented from those suggested in
874 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
875 * EXT_SUPP_RATES.
876 */
877 WLAN_EID_MESH_CONFIG = 51,
878 WLAN_EID_MESH_ID = 52,
879 WLAN_EID_PEER_LINK = 55,
880 WLAN_EID_PREQ = 68,
881 WLAN_EID_PREP = 69,
882 WLAN_EID_PERR = 70,
a9de8ce0
JB		 883 /* 802.11h */
884 WLAN_EID_PWR_CONSTRAINT = 32,
885 WLAN_EID_PWR_CAPABILITY = 33,
886 WLAN_EID_TPC_REQUEST = 34,
887 WLAN_EID_TPC_REPORT = 35,
888 WLAN_EID_SUPPORTED_CHANNELS = 36,
889 WLAN_EID_CHANNEL_SWITCH = 37,
890 WLAN_EID_MEASURE_REQUEST = 38,
891 WLAN_EID_MEASURE_REPORT = 39,
892 WLAN_EID_QUIET = 40,
893 WLAN_EID_IBSS_DFS = 41,
894 /* 802.11g */
895 WLAN_EID_ERP_INFO = 42,
896 WLAN_EID_EXT_SUPP_RATES = 50,
6b4e3241
RR		 897 /* 802.11n */
898 WLAN_EID_HT_CAPABILITY = 45,
899 WLAN_EID_HT_EXTRA_INFO = 61,
a9de8ce0
JB		 900 /* 802.11i */
901 WLAN_EID_RSN = 48,
902 WLAN_EID_WPA = 221,
903 WLAN_EID_GENERIC = 221,
904 WLAN_EID_VENDOR_SPECIFIC = 221,
905 WLAN_EID_QOS_PARAMETER = 222
906};
907
6b4e3241
RR		 908/* Action category code */
909enum ieee80211_category {
910 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
911 WLAN_CATEGORY_QOS = 1,
912 WLAN_CATEGORY_DLS = 2,
913 WLAN_CATEGORY_BACK = 3,
914 WLAN_CATEGORY_WMM = 17,
915};
916
f2df3859
AK		 917/* SPECTRUM_MGMT action code */
918enum ieee80211_spectrum_mgmt_actioncode {
919 WLAN_ACTION_SPCT_MSR_REQ = 0,
920 WLAN_ACTION_SPCT_MSR_RPRT = 1,
921 WLAN_ACTION_SPCT_TPC_REQ = 2,
922 WLAN_ACTION_SPCT_TPC_RPRT = 3,
923 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
924};
925
6b4e3241
RR		 926/* BACK action code */
927enum ieee80211_back_actioncode {
928 WLAN_ACTION_ADDBA_REQ = 0,
929 WLAN_ACTION_ADDBA_RESP = 1,
930 WLAN_ACTION_DELBA = 2,
931};
932
07db2183
RR		 933/* BACK (block-ack) parties */
934enum ieee80211_back_parties {
935 WLAN_BACK_RECIPIENT = 0,
936 WLAN_BACK_INITIATOR = 1,
937 WLAN_BACK_TIMER = 2,
938};
939
6b4e3241
RR		 940/* A-MSDU 802.11n */
941#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
942
a9de8ce0
JB		 943/* cipher suite selectors */
944#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
945#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
946#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
947/* reserved: 0x000FAC03 */
948#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
949#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
950
951#define WLAN_MAX_KEY_LEN 32
952
fd7c8a40
HH		 953/**
954 * ieee80211_get_qos_ctl - get pointer to qos control bytes
955 * @hdr: the frame
956 *
957 * The qos ctrl bytes come after the frame_control, duration, seq_num
958 * and 3 or 4 addresses of length ETH_ALEN.
959 * 3 addr: 2 + 2 + 2 + 3*6 = 24
960 * 4 addr: 2 + 2 + 2 + 4*6 = 30
961 */
962static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
963{
964 if (ieee80211_has_a4(hdr->frame_control))
965 return (u8 *)hdr + 30;
966 else
967 return (u8 *)hdr + 24;
968}
969
f97df02e
JB		 970/**
971 * ieee80211_get_SA - get pointer to SA
fd7c8a40 972 * @hdr: the frame
f97df02e
JB		 973 *
974 * Given an 802.11 frame, this function returns the offset
975 * to the source address (SA). It does not verify that the
976 * header is long enough to contain the address, and the
977 * header must be long enough to contain the frame control
978 * field.
f97df02e
JB		 979 */
980static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
981{
fd7c8a40 982 if (ieee80211_has_a4(hdr->frame_control))
5a433b3a 983 return hdr->addr4;
fd7c8a40
HH		 984 if (ieee80211_has_fromds(hdr->frame_control))
985 return hdr->addr3;
986 return hdr->addr2;
f97df02e
JB		 987}
988
989/**
990 * ieee80211_get_DA - get pointer to DA
fd7c8a40 991 * @hdr: the frame
f97df02e
JB		 992 *
993 * Given an 802.11 frame, this function returns the offset
994 * to the destination address (DA). It does not verify that
995 * the header is long enough to contain the address, and the
996 * header must be long enough to contain the frame control
997 * field.
f97df02e
JB		 998 */
999static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1000{
fd7c8a40 1001 if (ieee80211_has_tods(hdr->frame_control))
f97df02e 1002 return hdr->addr3;
5a433b3a
HH		 1003 else
1004 return hdr->addr1;
f97df02e
JB		 1005}
1006
a9de8ce0 1007#endif /* IEEE80211_H */
Linux kernel - Deliverables
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