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[deliverable/linux.git] / include / linux / ieee80211.h
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a9de8ce0
JB		 1/*
2 * IEEE 802.11 defines
3 *
4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
5 * <jkmaline@cc.hut.fi>
6 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
7 * Copyright (c) 2005, Devicescape Software, Inc.
8 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
9387b7ca
JL		 15#ifndef LINUX_IEEE80211_H
16#define LINUX_IEEE80211_H
a9de8ce0
JB		 17
18#include <linux/types.h>
f97df02e 19#include <asm/byteorder.h>
a9de8ce0
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
1239cd58 100
37c57989 101#define IEEE80211_MAX_MESH_ID_LEN 32
1239cd58
JB		 102#define IEEE80211_MESH_CONFIG_LEN 19
103
fd7c8a40 104#define IEEE80211_QOS_CTL_LEN 2
238f74a2
HH		 105#define IEEE80211_QOS_CTL_TID_MASK 0x000F
106#define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
a9de8ce0
JB		 107
108struct ieee80211_hdr {
109 __le16 frame_control;
110 __le16 duration_id;
111 u8 addr1[6];
112 u8 addr2[6];
113 u8 addr3[6];
114 __le16 seq_ctrl;
115 u8 addr4[6];
116} __attribute__ ((packed));
117
fd7c8a40
HH		 118/**
119 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
120 * @fc: frame control bytes in little-endian byteorder
121 */
122static inline int ieee80211_has_tods(__le16 fc)
123{
124 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
125}
126
127/**
128 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
129 * @fc: frame control bytes in little-endian byteorder
130 */
131static inline int ieee80211_has_fromds(__le16 fc)
132{
133 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
134}
135
136/**
137 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
138 * @fc: frame control bytes in little-endian byteorder
139 */
140static inline int ieee80211_has_a4(__le16 fc)
141{
142 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
143 return (fc & tmp) == tmp;
144}
145
146/**
147 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
148 * @fc: frame control bytes in little-endian byteorder
149 */
150static inline int ieee80211_has_morefrags(__le16 fc)
151{
152 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
153}
154
155/**
156 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
157 * @fc: frame control bytes in little-endian byteorder
158 */
159static inline int ieee80211_has_retry(__le16 fc)
160{
161 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
162}
163
164/**
165 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
166 * @fc: frame control bytes in little-endian byteorder
167 */
168static inline int ieee80211_has_pm(__le16 fc)
169{
170 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
171}
172
173/**
174 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
175 * @fc: frame control bytes in little-endian byteorder
176 */
177static inline int ieee80211_has_moredata(__le16 fc)
178{
179 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
180}
181
182/**
183 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
184 * @fc: frame control bytes in little-endian byteorder
185 */
186static inline int ieee80211_has_protected(__le16 fc)
187{
188 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
189}
190
191/**
192 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
193 * @fc: frame control bytes in little-endian byteorder
194 */
195static inline int ieee80211_has_order(__le16 fc)
196{
197 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
198}
199
200/**
201 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
202 * @fc: frame control bytes in little-endian byteorder
203 */
204static inline int ieee80211_is_mgmt(__le16 fc)
205{
206 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
207 cpu_to_le16(IEEE80211_FTYPE_MGMT);
208}
209
210/**
211 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
212 * @fc: frame control bytes in little-endian byteorder
213 */
214static inline int ieee80211_is_ctl(__le16 fc)
215{
216 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
217 cpu_to_le16(IEEE80211_FTYPE_CTL);
218}
219
220/**
221 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
222 * @fc: frame control bytes in little-endian byteorder
223 */
224static inline int ieee80211_is_data(__le16 fc)
225{
226 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
227 cpu_to_le16(IEEE80211_FTYPE_DATA);
228}
229
230/**
231 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
232 * @fc: frame control bytes in little-endian byteorder
233 */
234static inline int ieee80211_is_data_qos(__le16 fc)
235{
236 /*
237 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
238 * to check the one bit
239 */
240 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
241 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
242}
243
244/**
245 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
246 * @fc: frame control bytes in little-endian byteorder
247 */
248static inline int ieee80211_is_data_present(__le16 fc)
249{
250 /*
251 * mask with 0x40 and test that that bit is clear to only return true
252 * for the data-containing substypes.
253 */
254 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
255 cpu_to_le16(IEEE80211_FTYPE_DATA);
256}
257
258/**
259 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
260 * @fc: frame control bytes in little-endian byteorder
261 */
262static inline int ieee80211_is_assoc_req(__le16 fc)
263{
264 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
265 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
266}
267
268/**
269 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
270 * @fc: frame control bytes in little-endian byteorder
271 */
272static inline int ieee80211_is_assoc_resp(__le16 fc)
273{
274 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
275 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
276}
277
278/**
279 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
280 * @fc: frame control bytes in little-endian byteorder
281 */
282static inline int ieee80211_is_reassoc_req(__le16 fc)
283{
284 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
285 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
286}
287
288/**
289 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
290 * @fc: frame control bytes in little-endian byteorder
291 */
292static inline int ieee80211_is_reassoc_resp(__le16 fc)
293{
294 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
295 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
296}
297
298/**
299 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
300 * @fc: frame control bytes in little-endian byteorder
301 */
302static inline int ieee80211_is_probe_req(__le16 fc)
303{
304 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
305 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
306}
307
308/**
309 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
310 * @fc: frame control bytes in little-endian byteorder
311 */
312static inline int ieee80211_is_probe_resp(__le16 fc)
313{
314 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
315 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
316}
317
318/**
319 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
320 * @fc: frame control bytes in little-endian byteorder
321 */
322static inline int ieee80211_is_beacon(__le16 fc)
323{
324 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
325 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
326}
327
328/**
329 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
330 * @fc: frame control bytes in little-endian byteorder
331 */
332static inline int ieee80211_is_atim(__le16 fc)
333{
334 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
335 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
336}
337
338/**
339 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
340 * @fc: frame control bytes in little-endian byteorder
341 */
342static inline int ieee80211_is_disassoc(__le16 fc)
343{
344 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
345 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
346}
347
348/**
349 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
350 * @fc: frame control bytes in little-endian byteorder
351 */
352static inline int ieee80211_is_auth(__le16 fc)
353{
354 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
355 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
356}
357
358/**
359 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
360 * @fc: frame control bytes in little-endian byteorder
361 */
362static inline int ieee80211_is_deauth(__le16 fc)
363{
364 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
365 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
366}
367
368/**
369 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
370 * @fc: frame control bytes in little-endian byteorder
371 */
372static inline int ieee80211_is_action(__le16 fc)
373{
374 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
375 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
376}
377
378/**
379 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
380 * @fc: frame control bytes in little-endian byteorder
381 */
382static inline int ieee80211_is_back_req(__le16 fc)
383{
384 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
385 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
386}
387
388/**
389 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
390 * @fc: frame control bytes in little-endian byteorder
391 */
392static inline int ieee80211_is_back(__le16 fc)
393{
394 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
395 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
396}
397
398/**
399 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
400 * @fc: frame control bytes in little-endian byteorder
401 */
402static inline int ieee80211_is_pspoll(__le16 fc)
403{
404 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
405 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
406}
407
408/**
409 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
410 * @fc: frame control bytes in little-endian byteorder
411 */
412static inline int ieee80211_is_rts(__le16 fc)
413{
414 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
415 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
416}
417
418/**
419 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
420 * @fc: frame control bytes in little-endian byteorder
421 */
422static inline int ieee80211_is_cts(__le16 fc)
423{
424 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
425 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
426}
427
428/**
429 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
430 * @fc: frame control bytes in little-endian byteorder
431 */
432static inline int ieee80211_is_ack(__le16 fc)
433{
434 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
435 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
436}
437
438/**
439 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
440 * @fc: frame control bytes in little-endian byteorder
441 */
442static inline int ieee80211_is_cfend(__le16 fc)
443{
444 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
445 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
446}
447
448/**
449 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
450 * @fc: frame control bytes in little-endian byteorder
451 */
452static inline int ieee80211_is_cfendack(__le16 fc)
453{
454 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
455 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
456}
457
458/**
459 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC
460 * @fc: frame control bytes in little-endian byteorder
461 */
462static inline int ieee80211_is_nullfunc(__le16 fc)
463{
464 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
465 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
466}
a9de8ce0 467
37c57989
LCC		 468struct ieee80211s_hdr {
469 u8 flags;
470 u8 ttl;
51ceddad 471 __le32 seqnum;
37c57989
LCC		 472 u8 eaddr1[6];
473 u8 eaddr2[6];
474 u8 eaddr3[6];
475} __attribute__ ((packed));
476
79617dee
Y		 477/* Mesh flags */
478#define MESH_FLAGS_AE_A4 0x1
479#define MESH_FLAGS_AE_A5_A6 0x2
480#define MESH_FLAGS_PS_DEEP 0x4
481
f2df3859
AK		 482/**
483 * struct ieee80211_quiet_ie
484 *
485 * This structure refers to "Quiet information element"
486 */
487struct ieee80211_quiet_ie {
488 u8 count;
489 u8 period;
490 __le16 duration;
491 __le16 offset;
492} __attribute__ ((packed));
493
494/**
495 * struct ieee80211_msrment_ie
496 *
497 * This structure refers to "Measurement Request/Report information element"
498 */
499struct ieee80211_msrment_ie {
500 u8 token;
501 u8 mode;
502 u8 type;
503 u8 request[0];
504} __attribute__ ((packed));
505
506/**
507 * struct ieee80211_channel_sw_ie
508 *
509 * This structure refers to "Channel Switch Announcement information element"
510 */
511struct ieee80211_channel_sw_ie {
512 u8 mode;
513 u8 new_ch_num;
514 u8 count;
515} __attribute__ ((packed));
37c57989 516
98f7dfd8
EG		 517/**
518 * struct ieee80211_tim
519 *
520 * This structure refers to "Traffic Indication Map information element"
521 */
522struct ieee80211_tim_ie {
523 u8 dtim_count;
524 u8 dtim_period;
525 u8 bitmap_ctrl;
526 /* variable size: 1 - 251 bytes */
527 u8 virtual_map[0];
528} __attribute__ ((packed));
529
fea14732
JM		 530#define WLAN_SA_QUERY_TR_ID_LEN 16
531
a9de8ce0
JB		 532struct ieee80211_mgmt {
533 __le16 frame_control;
534 __le16 duration;
535 u8 da[6];
536 u8 sa[6];
537 u8 bssid[6];
538 __le16 seq_ctrl;
539 union {
540 struct {
541 __le16 auth_alg;
542 __le16 auth_transaction;
543 __le16 status_code;
544 /* possibly followed by Challenge text */
545 u8 variable[0];
546 } __attribute__ ((packed)) auth;
547 struct {
548 __le16 reason_code;
549 } __attribute__ ((packed)) deauth;
550 struct {
551 __le16 capab_info;
552 __le16 listen_interval;
553 /* followed by SSID and Supported rates */
554 u8 variable[0];
555 } __attribute__ ((packed)) assoc_req;
556 struct {
557 __le16 capab_info;
558 __le16 status_code;
559 __le16 aid;
560 /* followed by Supported rates */
561 u8 variable[0];
562 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
563 struct {
564 __le16 capab_info;
565 __le16 listen_interval;
566 u8 current_ap[6];
567 /* followed by SSID and Supported rates */
568 u8 variable[0];
569 } __attribute__ ((packed)) reassoc_req;
570 struct {
571 __le16 reason_code;
572 } __attribute__ ((packed)) disassoc;
573 struct {
574 __le64 timestamp;
575 __le16 beacon_int;
576 __le16 capab_info;
577 /* followed by some of SSID, Supported rates,
578 * FH Params, DS Params, CF Params, IBSS Params, TIM */
579 u8 variable[0];
580 } __attribute__ ((packed)) beacon;
581 struct {
582 /* only variable items: SSID, Supported rates */
583 u8 variable[0];
584 } __attribute__ ((packed)) probe_req;
585 struct {
586 __le64 timestamp;
587 __le16 beacon_int;
588 __le16 capab_info;
589 /* followed by some of SSID, Supported rates,
590 * FH Params, DS Params, CF Params, IBSS Params */
591 u8 variable[0];
592 } __attribute__ ((packed)) probe_resp;
593 struct {
594 u8 category;
595 union {
596 struct {
597 u8 action_code;
598 u8 dialog_token;
599 u8 status_code;
600 u8 variable[0];
601 } __attribute__ ((packed)) wme_action;
602 struct{
603 u8 action_code;
604 u8 element_id;
605 u8 length;
f2df3859 606 struct ieee80211_channel_sw_ie sw_elem;
a9de8ce0 607 } __attribute__((packed)) chan_switch;
f2df3859
AK		 608 struct{
609 u8 action_code;
610 u8 dialog_token;
611 u8 element_id;
612 u8 length;
613 struct ieee80211_msrment_ie msr_elem;
614 } __attribute__((packed)) measurement;
6b4e3241
RR		 615 struct{
616 u8 action_code;
617 u8 dialog_token;
618 __le16 capab;
619 __le16 timeout;
620 __le16 start_seq_num;
621 } __attribute__((packed)) addba_req;
622 struct{
623 u8 action_code;
624 u8 dialog_token;
625 __le16 status;
626 __le16 capab;
627 __le16 timeout;
628 } __attribute__((packed)) addba_resp;
629 struct{
630 u8 action_code;
631 __le16 params;
632 __le16 reason_code;
633 } __attribute__((packed)) delba;
37c57989
LCC		 634 struct{
635 u8 action_code;
636 /* capab_info for open and confirm,
637 * reason for close
638 */
639 __le16 aux;
640 /* Followed in plink_confirm by status
641 * code, AID and supported rates,
642 * and directly by supported rates in
643 * plink_open and plink_close
644 */
645 u8 variable[0];
646 } __attribute__((packed)) plink_action;
647 struct{
648 u8 action_code;
649 u8 variable[0];
650 } __attribute__((packed)) mesh_action;
fea14732
JM		 651 struct {
652 u8 action;
653 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
654 } __attribute__ ((packed)) sa_query;
a9de8ce0
JB		 655 } u;
656 } __attribute__ ((packed)) action;
657 } u;
658} __attribute__ ((packed));
659
44d414db
JB		 660/* mgmt header + 1 byte category code */
661#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
662
a9de8ce0 663
765cb46a
JM		 664/* Management MIC information element (IEEE 802.11w) */
665struct ieee80211_mmie {
666 u8 element_id;
667 u8 length;
668 __le16 key_id;
669 u8 sequence_number[6];
670 u8 mic[8];
671} __attribute__ ((packed));
672
a9de8ce0
JB		 673/* Control frames */
674struct ieee80211_rts {
675 __le16 frame_control;
676 __le16 duration;
677 u8 ra[6];
678 u8 ta[6];
679} __attribute__ ((packed));
680
681struct ieee80211_cts {
682 __le16 frame_control;
683 __le16 duration;
684 u8 ra[6];
685} __attribute__ ((packed));
686
fc6971d4
JM		 687struct ieee80211_pspoll {
688 __le16 frame_control;
689 __le16 aid;
690 u8 bssid[6];
691 u8 ta[6];
692} __attribute__ ((packed));
693
6b4e3241
RR		 694/**
695 * struct ieee80211_bar - HT Block Ack Request
696 *
697 * This structure refers to "HT BlockAckReq" as
698 * described in 802.11n draft section 7.2.1.7.1
699 */
700struct ieee80211_bar {
701 __le16 frame_control;
702 __le16 duration;
703 __u8 ra[6];
704 __u8 ta[6];
a8b47ea3
RR		 705 __le16 control;
706 __le16 start_seq_num;
6b4e3241
RR		 707} __attribute__((packed));
708
429a3805
RR		 709/* 802.11 BAR control masks */
710#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
711#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
712
d9fe60de
JB		 713
714#define IEEE80211_HT_MCS_MASK_LEN 10
715
716/**
717 * struct ieee80211_mcs_info - MCS information
718 * @rx_mask: RX mask
719 * @rx_highest: highest supported RX rate
720 * @tx_params: TX parameters
721 */
722struct ieee80211_mcs_info {
723 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
724 __le16 rx_highest;
725 u8 tx_params;
726 u8 reserved[3];
727} __attribute__((packed));
728
729/* 802.11n HT capability MSC set */
730#define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
731#define IEEE80211_HT_MCS_TX_DEFINED 0x01
732#define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
733/* value 0 == 1 stream etc */
734#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
735#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
736#define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
737#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
738
739/*
740 * 802.11n D5.0 20.3.5 / 20.6 says:
741 * - indices 0 to 7 and 32 are single spatial stream
742 * - 8 to 31 are multiple spatial streams using equal modulation
743 * [8..15 for two streams, 16..23 for three and 24..31 for four]
744 * - remainder are multiple spatial streams using unequal modulation
745 */
746#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
747#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
748 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
749
6b4e3241
RR		 750/**
751 * struct ieee80211_ht_cap - HT capabilities
752 *
d9fe60de
JB		 753 * This structure is the "HT capabilities element" as
754 * described in 802.11n D5.0 7.3.2.57
6b4e3241
RR		 755 */
756struct ieee80211_ht_cap {
757 __le16 cap_info;
758 u8 ampdu_params_info;
d9fe60de
JB		 759
760 /* 16 bytes MCS information */
761 struct ieee80211_mcs_info mcs;
762
6b4e3241
RR		 763 __le16 extended_ht_cap_info;
764 __le32 tx_BF_cap_info;
765 u8 antenna_selection_info;
766} __attribute__ ((packed));
767
d9fe60de
JB		 768/* 802.11n HT capabilities masks (for cap_info) */
769#define IEEE80211_HT_CAP_LDPC_CODING 0x0001
770#define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
771#define IEEE80211_HT_CAP_SM_PS 0x000C
772#define IEEE80211_HT_CAP_GRN_FLD 0x0010
773#define IEEE80211_HT_CAP_SGI_20 0x0020
774#define IEEE80211_HT_CAP_SGI_40 0x0040
775#define IEEE80211_HT_CAP_TX_STBC 0x0080
776#define IEEE80211_HT_CAP_RX_STBC 0x0300
777#define IEEE80211_HT_CAP_DELAY_BA 0x0400
778#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
779#define IEEE80211_HT_CAP_DSSSCCK40 0x1000
780#define IEEE80211_HT_CAP_PSMP_SUPPORT 0x2000
781#define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
782#define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
783
784/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
785#define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
786#define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
787
6b4e3241 788/**
d9fe60de 789 * struct ieee80211_ht_info - HT information
6b4e3241 790 *
d9fe60de
JB		 791 * This structure is the "HT information element" as
792 * described in 802.11n D5.0 7.3.2.58
6b4e3241 793 */
d9fe60de 794struct ieee80211_ht_info {
6b4e3241
RR		 795 u8 control_chan;
796 u8 ht_param;
797 __le16 operation_mode;
798 __le16 stbc_param;
799 u8 basic_set[16];
800} __attribute__ ((packed));
801
d9fe60de
JB		 802/* for ht_param */
803#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
804#define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
805#define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
806#define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
807#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
808#define IEEE80211_HT_PARAM_RIFS_MODE 0x08
809#define IEEE80211_HT_PARAM_SPSMP_SUPPORT 0x10
810#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN 0xE0
811
812/* for operation_mode */
813#define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
814#define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
815#define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
816#define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
817#define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
818#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
819#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
820
821/* for stbc_param */
822#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
823#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
824#define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
825#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
826#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
827#define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
828
a9de8ce0 829
44d414db
JB		 830/* block-ack parameters */
831#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
832#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
833#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
834#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
835#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
836
837/*
838 * A-PMDU buffer sizes
839 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
840 */
841#define IEEE80211_MIN_AMPDU_BUF 0x8
842#define IEEE80211_MAX_AMPDU_BUF 0x40
843
844
00c5ae2f
TW		 845/* Spatial Multiplexing Power Save Modes */
846#define WLAN_HT_CAP_SM_PS_STATIC 0
847#define WLAN_HT_CAP_SM_PS_DYNAMIC 1
848#define WLAN_HT_CAP_SM_PS_INVALID 2
849#define WLAN_HT_CAP_SM_PS_DISABLED 3
e53cfe0e 850
a9de8ce0
JB		 851/* Authentication algorithms */
852#define WLAN_AUTH_OPEN 0
853#define WLAN_AUTH_SHARED_KEY 1
bb608e9d 854#define WLAN_AUTH_LEAP 128
a9de8ce0
JB		 855
856#define WLAN_AUTH_CHALLENGE_LEN 128
857
858#define WLAN_CAPABILITY_ESS (1<<0)
859#define WLAN_CAPABILITY_IBSS (1<<1)
860#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
861#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
862#define WLAN_CAPABILITY_PRIVACY (1<<4)
863#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
864#define WLAN_CAPABILITY_PBCC (1<<6)
865#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
b6623486 866
a9de8ce0
JB		 867/* 802.11h */
868#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
869#define WLAN_CAPABILITY_QOS (1<<9)
870#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
871#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
b6623486
AK		 872/* measurement */
873#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
874#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
875#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
876
877#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
878#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
879#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
880
a9de8ce0 881
5628221c
DD		 882/* 802.11g ERP information element */
883#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
884#define WLAN_ERP_USE_PROTECTION (1<<1)
885#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
886
887/* WLAN_ERP_BARKER_PREAMBLE values */
888enum {
889 WLAN_ERP_PREAMBLE_SHORT = 0,
890 WLAN_ERP_PREAMBLE_LONG = 1,
891};
892
a9de8ce0
JB		 893/* Status codes */
894enum ieee80211_statuscode {
895 WLAN_STATUS_SUCCESS = 0,
896 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
897 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
898 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
899 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
900 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
901 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
902 WLAN_STATUS_CHALLENGE_FAIL = 15,
903 WLAN_STATUS_AUTH_TIMEOUT = 16,
904 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
905 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
906 /* 802.11b */
907 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
908 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
909 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
910 /* 802.11h */
911 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
912 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
913 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
914 /* 802.11g */
915 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
916 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
63a5ab82
JM		 917 /* 802.11w */
918 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
919 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
a9de8ce0
JB		 920 /* 802.11i */
921 WLAN_STATUS_INVALID_IE = 40,
922 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
923 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
924 WLAN_STATUS_INVALID_AKMP = 43,
925 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
926 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
927 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
6b4e3241
RR		 928 /* 802.11e */
929 WLAN_STATUS_UNSPECIFIED_QOS = 32,
930 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
931 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
932 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
933 WLAN_STATUS_REQUEST_DECLINED = 37,
934 WLAN_STATUS_INVALID_QOS_PARAM = 38,
935 WLAN_STATUS_CHANGE_TSPEC = 39,
936 WLAN_STATUS_WAIT_TS_DELAY = 47,
937 WLAN_STATUS_NO_DIRECT_LINK = 48,
938 WLAN_STATUS_STA_NOT_PRESENT = 49,
939 WLAN_STATUS_STA_NOT_QSTA = 50,
a9de8ce0
JB		 940};
941
942
943/* Reason codes */
944enum ieee80211_reasoncode {
945 WLAN_REASON_UNSPECIFIED = 1,
946 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
947 WLAN_REASON_DEAUTH_LEAVING = 3,
948 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
949 WLAN_REASON_DISASSOC_AP_BUSY = 5,
950 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
951 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
952 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
953 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
954 /* 802.11h */
955 WLAN_REASON_DISASSOC_BAD_POWER = 10,
956 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
957 /* 802.11i */
958 WLAN_REASON_INVALID_IE = 13,
959 WLAN_REASON_MIC_FAILURE = 14,
960 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
961 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
962 WLAN_REASON_IE_DIFFERENT = 17,
963 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
964 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
965 WLAN_REASON_INVALID_AKMP = 20,
966 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
967 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
968 WLAN_REASON_IEEE8021X_FAILED = 23,
969 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
6b4e3241
RR		 970 /* 802.11e */
971 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
972 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
973 WLAN_REASON_DISASSOC_LOW_ACK = 34,
974 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
975 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
976 WLAN_REASON_QSTA_NOT_USE = 37,
977 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
978 WLAN_REASON_QSTA_TIMEOUT = 39,
979 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
a9de8ce0
JB		 980};
981
982
983/* Information Element IDs */
984enum ieee80211_eid {
985 WLAN_EID_SSID = 0,
986 WLAN_EID_SUPP_RATES = 1,
987 WLAN_EID_FH_PARAMS = 2,
988 WLAN_EID_DS_PARAMS = 3,
989 WLAN_EID_CF_PARAMS = 4,
990 WLAN_EID_TIM = 5,
991 WLAN_EID_IBSS_PARAMS = 6,
992 WLAN_EID_CHALLENGE = 16,
993 /* 802.11d */
994 WLAN_EID_COUNTRY = 7,
995 WLAN_EID_HP_PARAMS = 8,
996 WLAN_EID_HP_TABLE = 9,
997 WLAN_EID_REQUEST = 10,
6b4e3241
RR		 998 /* 802.11e */
999 WLAN_EID_QBSS_LOAD = 11,
1000 WLAN_EID_EDCA_PARAM_SET = 12,
1001 WLAN_EID_TSPEC = 13,
1002 WLAN_EID_TCLAS = 14,
1003 WLAN_EID_SCHEDULE = 15,
1004 WLAN_EID_TS_DELAY = 43,
1005 WLAN_EID_TCLAS_PROCESSING = 44,
1006 WLAN_EID_QOS_CAPA = 46,
d619ee08
LCC		 1007 /* 802.11s
1008 *
1009 * All mesh EID numbers are pending IEEE 802.11 ANA approval.
1010 * The numbers have been incremented from those suggested in
1011 * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
1012 * EXT_SUPP_RATES.
1013 */
1014 WLAN_EID_MESH_CONFIG = 51,
1015 WLAN_EID_MESH_ID = 52,
1016 WLAN_EID_PEER_LINK = 55,
1017 WLAN_EID_PREQ = 68,
1018 WLAN_EID_PREP = 69,
1019 WLAN_EID_PERR = 70,
a9de8ce0
JB		 1020 /* 802.11h */
1021 WLAN_EID_PWR_CONSTRAINT = 32,
1022 WLAN_EID_PWR_CAPABILITY = 33,
1023 WLAN_EID_TPC_REQUEST = 34,
1024 WLAN_EID_TPC_REPORT = 35,
1025 WLAN_EID_SUPPORTED_CHANNELS = 36,
1026 WLAN_EID_CHANNEL_SWITCH = 37,
1027 WLAN_EID_MEASURE_REQUEST = 38,
1028 WLAN_EID_MEASURE_REPORT = 39,
1029 WLAN_EID_QUIET = 40,
1030 WLAN_EID_IBSS_DFS = 41,
1031 /* 802.11g */
1032 WLAN_EID_ERP_INFO = 42,
1033 WLAN_EID_EXT_SUPP_RATES = 50,
6b4e3241
RR		 1034 /* 802.11n */
1035 WLAN_EID_HT_CAPABILITY = 45,
d9fe60de 1036 WLAN_EID_HT_INFORMATION = 61,
a9de8ce0
JB		 1037 /* 802.11i */
1038 WLAN_EID_RSN = 48,
f797eb7e 1039 WLAN_EID_TIMEOUT_INTERVAL = 56,
765cb46a 1040 WLAN_EID_MMIE = 76 /* 802.11w */,
a9de8ce0
JB		 1041 WLAN_EID_WPA = 221,
1042 WLAN_EID_GENERIC = 221,
1043 WLAN_EID_VENDOR_SPECIFIC = 221,
1044 WLAN_EID_QOS_PARAMETER = 222
1045};
1046
6b4e3241
RR		 1047/* Action category code */
1048enum ieee80211_category {
1049 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1050 WLAN_CATEGORY_QOS = 1,
1051 WLAN_CATEGORY_DLS = 2,
1052 WLAN_CATEGORY_BACK = 3,
fb733336 1053 WLAN_CATEGORY_PUBLIC = 4,
fea14732 1054 WLAN_CATEGORY_SA_QUERY = 8,
6b4e3241
RR		 1055 WLAN_CATEGORY_WMM = 17,
1056};
1057
f2df3859
AK		 1058/* SPECTRUM_MGMT action code */
1059enum ieee80211_spectrum_mgmt_actioncode {
1060 WLAN_ACTION_SPCT_MSR_REQ = 0,
1061 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1062 WLAN_ACTION_SPCT_TPC_REQ = 2,
1063 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1064 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1065};
1066
3f2355cb
LR		 1067/*
1068 * IEEE 802.11-2007 7.3.2.9 Country information element
1069 *
1070 * Minimum length is 8 octets, ie len must be evenly
1071 * divisible by 2
1072 */
1073
1074/* Although the spec says 8 I'm seeing 6 in practice */
1075#define IEEE80211_COUNTRY_IE_MIN_LEN 6
1076
1077/*
1078 * For regulatory extension stuff see IEEE 802.11-2007
1079 * Annex I (page 1141) and Annex J (page 1147). Also
1080 * review 7.3.2.9.
1081 *
1082 * When dot11RegulatoryClassesRequired is true and the
1083 * first_channel/reg_extension_id is >= 201 then the IE
1084 * compromises of the 'ext' struct represented below:
1085 *
1086 * - Regulatory extension ID - when generating IE this just needs
1087 * to be monotonically increasing for each triplet passed in
1088 * the IE
1089 * - Regulatory class - index into set of rules
1090 * - Coverage class - index into air propagation time (Table 7-27),
1091 * in microseconds, you can compute the air propagation time from
1092 * the index by multiplying by 3, so index 10 yields a propagation
1093 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1094 * yet. A value of 0 inicates air propagation of <= 1 us.
1095 *
1096 * See also Table I.2 for Emission limit sets and table
1097 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1098 * a reg_class to an emission limit set and behavior limit set.
1099 */
1100#define IEEE80211_COUNTRY_EXTENSION_ID 201
1101
1102/*
1103 * Channels numbers in the IE must be monotonically increasing
1104 * if dot11RegulatoryClassesRequired is not true.
1105 *
1106 * If dot11RegulatoryClassesRequired is true consecutive
1107 * subband triplets following a regulatory triplet shall
1108 * have monotonically increasing first_channel number fields.
1109 *
1110 * Channel numbers shall not overlap.
1111 *
1112 * Note that max_power is signed.
1113 */
1114struct ieee80211_country_ie_triplet {
1115 union {
1116 struct {
1117 u8 first_channel;
1118 u8 num_channels;
1119 s8 max_power;
1120 } __attribute__ ((packed)) chans;
1121 struct {
1122 u8 reg_extension_id;
1123 u8 reg_class;
1124 u8 coverage_class;
1125 } __attribute__ ((packed)) ext;
1126 };
1127} __attribute__ ((packed));
1128
f797eb7e
JM		 1129enum ieee80211_timeout_interval_type {
1130 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1131 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1132 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1133};
1134
6b4e3241
RR		 1135/* BACK action code */
1136enum ieee80211_back_actioncode {
1137 WLAN_ACTION_ADDBA_REQ = 0,
1138 WLAN_ACTION_ADDBA_RESP = 1,
1139 WLAN_ACTION_DELBA = 2,
1140};
1141
07db2183
RR		 1142/* BACK (block-ack) parties */
1143enum ieee80211_back_parties {
1144 WLAN_BACK_RECIPIENT = 0,
1145 WLAN_BACK_INITIATOR = 1,
1146 WLAN_BACK_TIMER = 2,
1147};
1148
fea14732
JM		 1149/* SA Query action */
1150enum ieee80211_sa_query_action {
1151 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1152 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1153};
1154
1155
6b4e3241
RR		 1156/* A-MSDU 802.11n */
1157#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1158
a9de8ce0
JB		 1159/* cipher suite selectors */
1160#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1161#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1162#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1163/* reserved: 0x000FAC03 */
1164#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1165#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
3cfcf6ac 1166#define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
a9de8ce0
JB		 1167
1168#define WLAN_MAX_KEY_LEN 32
1169
fd7c8a40
HH		 1170/**
1171 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1172 * @hdr: the frame
1173 *
1174 * The qos ctrl bytes come after the frame_control, duration, seq_num
1175 * and 3 or 4 addresses of length ETH_ALEN.
1176 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1177 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1178 */
1179static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1180{
1181 if (ieee80211_has_a4(hdr->frame_control))
1182 return (u8 *)hdr + 30;
1183 else
1184 return (u8 *)hdr + 24;
1185}
1186
f97df02e
JB		 1187/**
1188 * ieee80211_get_SA - get pointer to SA
fd7c8a40 1189 * @hdr: the frame
f97df02e
JB		 1190 *
1191 * Given an 802.11 frame, this function returns the offset
1192 * to the source address (SA). It does not verify that the
1193 * header is long enough to contain the address, and the
1194 * header must be long enough to contain the frame control
1195 * field.
f97df02e
JB		 1196 */
1197static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1198{
fd7c8a40 1199 if (ieee80211_has_a4(hdr->frame_control))
5a433b3a 1200 return hdr->addr4;
fd7c8a40
HH		 1201 if (ieee80211_has_fromds(hdr->frame_control))
1202 return hdr->addr3;
1203 return hdr->addr2;
f97df02e
JB		 1204}
1205
1206/**
1207 * ieee80211_get_DA - get pointer to DA
fd7c8a40 1208 * @hdr: the frame
f97df02e
JB		 1209 *
1210 * Given an 802.11 frame, this function returns the offset
1211 * to the destination address (DA). It does not verify that
1212 * the header is long enough to contain the address, and the
1213 * header must be long enough to contain the frame control
1214 * field.
f97df02e
JB		 1215 */
1216static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1217{
fd7c8a40 1218 if (ieee80211_has_tods(hdr->frame_control))
f97df02e 1219 return hdr->addr3;
5a433b3a
HH		 1220 else
1221 return hdr->addr1;
f97df02e
JB		 1222}
1223
fb733336
JM		 1224/**
1225 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1226 * @hdr: the frame (buffer must include at least the first octet of payload)
1227 */
1228static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1229{
1230 if (ieee80211_is_disassoc(hdr->frame_control) ||
1231 ieee80211_is_deauth(hdr->frame_control))
1232 return true;
1233
1234 if (ieee80211_is_action(hdr->frame_control)) {
1235 u8 *category;
1236
1237 /*
1238 * Action frames, excluding Public Action frames, are Robust
1239 * Management Frames. However, if we are looking at a Protected
1240 * frame, skip the check since the data may be encrypted and
1241 * the frame has already been found to be a Robust Management
1242 * Frame (by the other end).
1243 */
1244 if (ieee80211_has_protected(hdr->frame_control))
1245 return true;
1246 category = ((u8 *) hdr) + 24;
1247 return *category != WLAN_CATEGORY_PUBLIC;
1248 }
1249
1250 return false;
1251}
1252
9ee677c2
DK		 1253/**
1254 * ieee80211_fhss_chan_to_freq - get channel frequency
1255 * @channel: the FHSS channel
1256 *
1257 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1258 * Ref IEEE 802.11-2007 section 14.6
1259 */
1260static inline int ieee80211_fhss_chan_to_freq(int channel)
1261{
1262 if ((channel > 1) && (channel < 96))
1263 return channel + 2400;
1264 else
1265 return -1;
1266}
1267
1268/**
1269 * ieee80211_freq_to_fhss_chan - get channel
1270 * @freq: the channels frequency
1271 *
1272 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1273 * Ref IEEE 802.11-2007 section 14.6
1274 */
1275static inline int ieee80211_freq_to_fhss_chan(int freq)
1276{
1277 if ((freq > 2401) && (freq < 2496))
1278 return freq - 2400;
1279 else
1280 return -1;
1281}
1282
1283/**
1284 * ieee80211_dsss_chan_to_freq - get channel center frequency
1285 * @channel: the DSSS channel
1286 *
1287 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1288 * Ref IEEE 802.11-2007 section 15.6
1289 */
1290static inline int ieee80211_dsss_chan_to_freq(int channel)
1291{
1292 if ((channel > 0) && (channel < 14))
1293 return 2407 + (channel * 5);
1294 else if (channel == 14)
1295 return 2484;
1296 else
1297 return -1;
1298}
1299
1300/**
1301 * ieee80211_freq_to_dsss_chan - get channel
1302 * @freq: the frequency
1303 *
1304 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1305 * Ref IEEE 802.11-2007 section 15.6
1306 *
1307 * This routine selects the channel with the closest center frequency.
1308 */
1309static inline int ieee80211_freq_to_dsss_chan(int freq)
1310{
1311 if ((freq >= 2410) && (freq < 2475))
1312 return (freq - 2405) / 5;
1313 else if ((freq >= 2482) && (freq < 2487))
1314 return 14;
1315 else
1316 return -1;
1317}
1318
1319/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1320 * Ref IEEE 802.11-2007 section 18.4.6.2
1321 *
1322 * The channels and frequencies are the same as those defined for DSSS
1323 */
1324#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1325#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1326
1327/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1328 * Ref IEEE 802.11-2007 section 19.4.2
1329 */
1330#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1331#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1332
1333/**
1334 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1335 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1336 * @channel: the OFDM channel
1337 *
1338 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1339 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1340 */
1341static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1342{
1343 if ((channel > 0) && (channel <= 200) &&
1344 (s_freq >= 4000))
1345 return s_freq + (channel * 5);
1346 else
1347 return -1;
1348}
1349
1350/**
1351 * ieee80211_freq_to_ofdm_channel - get channel
1352 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1353 * @freq: the frequency
1354 *
1355 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1356 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1357 *
1358 * This routine selects the channel with the closest center frequency.
1359 */
1360static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1361{
1362 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1363 (s_freq >= 4000))
1364 return (freq + 2 - s_freq) / 5;
1365 else
1366 return -1;
1367}
1368
9387b7ca 1369#endif /* LINUX_IEEE80211_H */
Linux kernel - Deliverables
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