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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 | ||
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 | |
103 | struct 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 | */ | |
117 | static 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 | */ | |
126 | static 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 | */ | |
135 | static 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 | */ | |
145 | static 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 | */ | |
154 | static 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 | */ | |
163 | static 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 | */ | |
172 | static 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 | */ | |
181 | static 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 | */ | |
190 | static 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 | */ | |
199 | static 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 | */ | |
209 | static 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 | */ | |
219 | static 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 | */ | |
229 | static 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 | */ | |
243 | static 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 | */ | |
257 | static 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 | */ | |
267 | static 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 | */ | |
277 | static 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 | */ | |
287 | static 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 | */ | |
297 | static 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 | */ | |
307 | static 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 | */ | |
317 | static 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 | */ | |
327 | static 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 | */ | |
337 | static 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 | */ | |
347 | static 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 | */ | |
357 | static 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 | */ | |
367 | static 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 | */ | |
377 | static 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 | */ | |
387 | static 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 | */ | |
397 | static 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 | */ | |
407 | static 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 | */ | |
417 | static 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 | */ | |
427 | static 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 | */ | |
437 | static 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 | */ | |
447 | static 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 | */ | |
457 | static 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 |
463 | struct 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 | ||
472 | ||
a9de8ce0 JB |
473 | struct ieee80211_mgmt { |
474 | __le16 frame_control; | |
475 | __le16 duration; | |
476 | u8 da[6]; | |
477 | u8 sa[6]; | |
478 | u8 bssid[6]; | |
479 | __le16 seq_ctrl; | |
480 | union { | |
481 | struct { | |
482 | __le16 auth_alg; | |
483 | __le16 auth_transaction; | |
484 | __le16 status_code; | |
485 | /* possibly followed by Challenge text */ | |
486 | u8 variable[0]; | |
487 | } __attribute__ ((packed)) auth; | |
488 | struct { | |
489 | __le16 reason_code; | |
490 | } __attribute__ ((packed)) deauth; | |
491 | struct { | |
492 | __le16 capab_info; | |
493 | __le16 listen_interval; | |
494 | /* followed by SSID and Supported rates */ | |
495 | u8 variable[0]; | |
496 | } __attribute__ ((packed)) assoc_req; | |
497 | struct { | |
498 | __le16 capab_info; | |
499 | __le16 status_code; | |
500 | __le16 aid; | |
501 | /* followed by Supported rates */ | |
502 | u8 variable[0]; | |
503 | } __attribute__ ((packed)) assoc_resp, reassoc_resp; | |
504 | struct { | |
505 | __le16 capab_info; | |
506 | __le16 listen_interval; | |
507 | u8 current_ap[6]; | |
508 | /* followed by SSID and Supported rates */ | |
509 | u8 variable[0]; | |
510 | } __attribute__ ((packed)) reassoc_req; | |
511 | struct { | |
512 | __le16 reason_code; | |
513 | } __attribute__ ((packed)) disassoc; | |
514 | struct { | |
515 | __le64 timestamp; | |
516 | __le16 beacon_int; | |
517 | __le16 capab_info; | |
518 | /* followed by some of SSID, Supported rates, | |
519 | * FH Params, DS Params, CF Params, IBSS Params, TIM */ | |
520 | u8 variable[0]; | |
521 | } __attribute__ ((packed)) beacon; | |
522 | struct { | |
523 | /* only variable items: SSID, Supported rates */ | |
524 | u8 variable[0]; | |
525 | } __attribute__ ((packed)) probe_req; | |
526 | struct { | |
527 | __le64 timestamp; | |
528 | __le16 beacon_int; | |
529 | __le16 capab_info; | |
530 | /* followed by some of SSID, Supported rates, | |
531 | * FH Params, DS Params, CF Params, IBSS Params */ | |
532 | u8 variable[0]; | |
533 | } __attribute__ ((packed)) probe_resp; | |
534 | struct { | |
535 | u8 category; | |
536 | union { | |
537 | struct { | |
538 | u8 action_code; | |
539 | u8 dialog_token; | |
540 | u8 status_code; | |
541 | u8 variable[0]; | |
542 | } __attribute__ ((packed)) wme_action; | |
543 | struct{ | |
544 | u8 action_code; | |
545 | u8 element_id; | |
546 | u8 length; | |
547 | u8 switch_mode; | |
548 | u8 new_chan; | |
549 | u8 switch_count; | |
550 | } __attribute__((packed)) chan_switch; | |
6b4e3241 RR |
551 | struct{ |
552 | u8 action_code; | |
553 | u8 dialog_token; | |
554 | __le16 capab; | |
555 | __le16 timeout; | |
556 | __le16 start_seq_num; | |
557 | } __attribute__((packed)) addba_req; | |
558 | struct{ | |
559 | u8 action_code; | |
560 | u8 dialog_token; | |
561 | __le16 status; | |
562 | __le16 capab; | |
563 | __le16 timeout; | |
564 | } __attribute__((packed)) addba_resp; | |
565 | struct{ | |
566 | u8 action_code; | |
567 | __le16 params; | |
568 | __le16 reason_code; | |
569 | } __attribute__((packed)) delba; | |
37c57989 LCC |
570 | struct{ |
571 | u8 action_code; | |
572 | /* capab_info for open and confirm, | |
573 | * reason for close | |
574 | */ | |
575 | __le16 aux; | |
576 | /* Followed in plink_confirm by status | |
577 | * code, AID and supported rates, | |
578 | * and directly by supported rates in | |
579 | * plink_open and plink_close | |
580 | */ | |
581 | u8 variable[0]; | |
582 | } __attribute__((packed)) plink_action; | |
583 | struct{ | |
584 | u8 action_code; | |
585 | u8 variable[0]; | |
586 | } __attribute__((packed)) mesh_action; | |
a9de8ce0 JB |
587 | } u; |
588 | } __attribute__ ((packed)) action; | |
589 | } u; | |
590 | } __attribute__ ((packed)); | |
591 | ||
592 | ||
593 | /* Control frames */ | |
594 | struct ieee80211_rts { | |
595 | __le16 frame_control; | |
596 | __le16 duration; | |
597 | u8 ra[6]; | |
598 | u8 ta[6]; | |
599 | } __attribute__ ((packed)); | |
600 | ||
601 | struct ieee80211_cts { | |
602 | __le16 frame_control; | |
603 | __le16 duration; | |
604 | u8 ra[6]; | |
605 | } __attribute__ ((packed)); | |
606 | ||
6b4e3241 RR |
607 | /** |
608 | * struct ieee80211_bar - HT Block Ack Request | |
609 | * | |
610 | * This structure refers to "HT BlockAckReq" as | |
611 | * described in 802.11n draft section 7.2.1.7.1 | |
612 | */ | |
613 | struct ieee80211_bar { | |
614 | __le16 frame_control; | |
615 | __le16 duration; | |
616 | __u8 ra[6]; | |
617 | __u8 ta[6]; | |
a8b47ea3 RR |
618 | __le16 control; |
619 | __le16 start_seq_num; | |
6b4e3241 RR |
620 | } __attribute__((packed)); |
621 | ||
622 | /** | |
623 | * struct ieee80211_ht_cap - HT capabilities | |
624 | * | |
625 | * This structure refers to "HT capabilities element" as | |
626 | * described in 802.11n draft section 7.3.2.52 | |
627 | */ | |
628 | struct ieee80211_ht_cap { | |
629 | __le16 cap_info; | |
630 | u8 ampdu_params_info; | |
631 | u8 supp_mcs_set[16]; | |
632 | __le16 extended_ht_cap_info; | |
633 | __le32 tx_BF_cap_info; | |
634 | u8 antenna_selection_info; | |
635 | } __attribute__ ((packed)); | |
636 | ||
637 | /** | |
638 | * struct ieee80211_ht_cap - HT additional information | |
639 | * | |
640 | * This structure refers to "HT information element" as | |
641 | * described in 802.11n draft section 7.3.2.53 | |
642 | */ | |
643 | struct ieee80211_ht_addt_info { | |
644 | u8 control_chan; | |
645 | u8 ht_param; | |
646 | __le16 operation_mode; | |
647 | __le16 stbc_param; | |
648 | u8 basic_set[16]; | |
649 | } __attribute__ ((packed)); | |
650 | ||
651 | /* 802.11n HT capabilities masks */ | |
652 | #define IEEE80211_HT_CAP_SUP_WIDTH 0x0002 | |
653 | #define IEEE80211_HT_CAP_MIMO_PS 0x000C | |
654 | #define IEEE80211_HT_CAP_GRN_FLD 0x0010 | |
655 | #define IEEE80211_HT_CAP_SGI_20 0x0020 | |
656 | #define IEEE80211_HT_CAP_SGI_40 0x0040 | |
657 | #define IEEE80211_HT_CAP_DELAY_BA 0x0400 | |
658 | #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 | |
edcdf8b2 | 659 | /* 802.11n HT capability AMPDU settings */ |
6b4e3241 RR |
660 | #define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03 |
661 | #define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C | |
edcdf8b2 RR |
662 | /* 802.11n HT capability MSC set */ |
663 | #define IEEE80211_SUPP_MCS_SET_UEQM 4 | |
664 | #define IEEE80211_HT_CAP_MAX_STREAMS 4 | |
665 | #define IEEE80211_SUPP_MCS_SET_LEN 10 | |
666 | /* maximum streams the spec allows */ | |
667 | #define IEEE80211_HT_CAP_MCS_TX_DEFINED 0x01 | |
668 | #define IEEE80211_HT_CAP_MCS_TX_RX_DIFF 0x02 | |
669 | #define IEEE80211_HT_CAP_MCS_TX_STREAMS 0x0C | |
670 | #define IEEE80211_HT_CAP_MCS_TX_UEQM 0x10 | |
6b4e3241 RR |
671 | /* 802.11n HT IE masks */ |
672 | #define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03 | |
963f5517 | 673 | #define IEEE80211_HT_IE_CHA_SEC_NONE 0x00 |
9306102e EG |
674 | #define IEEE80211_HT_IE_CHA_SEC_ABOVE 0x01 |
675 | #define IEEE80211_HT_IE_CHA_SEC_BELOW 0x03 | |
6b4e3241 RR |
676 | #define IEEE80211_HT_IE_CHA_WIDTH 0x04 |
677 | #define IEEE80211_HT_IE_HT_PROTECTION 0x0003 | |
678 | #define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004 | |
679 | #define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010 | |
a9de8ce0 | 680 | |
e53cfe0e | 681 | /* MIMO Power Save Modes */ |
edcdf8b2 RR |
682 | #define WLAN_HT_CAP_MIMO_PS_STATIC 0 |
683 | #define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1 | |
684 | #define WLAN_HT_CAP_MIMO_PS_INVALID 2 | |
685 | #define WLAN_HT_CAP_MIMO_PS_DISABLED 3 | |
e53cfe0e | 686 | |
a9de8ce0 JB |
687 | /* Authentication algorithms */ |
688 | #define WLAN_AUTH_OPEN 0 | |
689 | #define WLAN_AUTH_SHARED_KEY 1 | |
690 | #define WLAN_AUTH_FAST_BSS_TRANSITION 2 | |
691 | #define WLAN_AUTH_LEAP 128 | |
692 | ||
693 | #define WLAN_AUTH_CHALLENGE_LEN 128 | |
694 | ||
695 | #define WLAN_CAPABILITY_ESS (1<<0) | |
696 | #define WLAN_CAPABILITY_IBSS (1<<1) | |
697 | #define WLAN_CAPABILITY_CF_POLLABLE (1<<2) | |
698 | #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) | |
699 | #define WLAN_CAPABILITY_PRIVACY (1<<4) | |
700 | #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) | |
701 | #define WLAN_CAPABILITY_PBCC (1<<6) | |
702 | #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) | |
703 | /* 802.11h */ | |
704 | #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) | |
705 | #define WLAN_CAPABILITY_QOS (1<<9) | |
706 | #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) | |
707 | #define WLAN_CAPABILITY_DSSS_OFDM (1<<13) | |
708 | ||
5628221c DD |
709 | /* 802.11g ERP information element */ |
710 | #define WLAN_ERP_NON_ERP_PRESENT (1<<0) | |
711 | #define WLAN_ERP_USE_PROTECTION (1<<1) | |
712 | #define WLAN_ERP_BARKER_PREAMBLE (1<<2) | |
713 | ||
714 | /* WLAN_ERP_BARKER_PREAMBLE values */ | |
715 | enum { | |
716 | WLAN_ERP_PREAMBLE_SHORT = 0, | |
717 | WLAN_ERP_PREAMBLE_LONG = 1, | |
718 | }; | |
719 | ||
a9de8ce0 JB |
720 | /* Status codes */ |
721 | enum ieee80211_statuscode { | |
722 | WLAN_STATUS_SUCCESS = 0, | |
723 | WLAN_STATUS_UNSPECIFIED_FAILURE = 1, | |
724 | WLAN_STATUS_CAPS_UNSUPPORTED = 10, | |
725 | WLAN_STATUS_REASSOC_NO_ASSOC = 11, | |
726 | WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, | |
727 | WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, | |
728 | WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, | |
729 | WLAN_STATUS_CHALLENGE_FAIL = 15, | |
730 | WLAN_STATUS_AUTH_TIMEOUT = 16, | |
731 | WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, | |
732 | WLAN_STATUS_ASSOC_DENIED_RATES = 18, | |
733 | /* 802.11b */ | |
734 | WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, | |
735 | WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, | |
736 | WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, | |
737 | /* 802.11h */ | |
738 | WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, | |
739 | WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, | |
740 | WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, | |
741 | /* 802.11g */ | |
742 | WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, | |
743 | WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, | |
744 | /* 802.11i */ | |
745 | WLAN_STATUS_INVALID_IE = 40, | |
746 | WLAN_STATUS_INVALID_GROUP_CIPHER = 41, | |
747 | WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, | |
748 | WLAN_STATUS_INVALID_AKMP = 43, | |
749 | WLAN_STATUS_UNSUPP_RSN_VERSION = 44, | |
750 | WLAN_STATUS_INVALID_RSN_IE_CAP = 45, | |
751 | WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, | |
6b4e3241 RR |
752 | /* 802.11e */ |
753 | WLAN_STATUS_UNSPECIFIED_QOS = 32, | |
754 | WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, | |
755 | WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, | |
756 | WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, | |
757 | WLAN_STATUS_REQUEST_DECLINED = 37, | |
758 | WLAN_STATUS_INVALID_QOS_PARAM = 38, | |
759 | WLAN_STATUS_CHANGE_TSPEC = 39, | |
760 | WLAN_STATUS_WAIT_TS_DELAY = 47, | |
761 | WLAN_STATUS_NO_DIRECT_LINK = 48, | |
762 | WLAN_STATUS_STA_NOT_PRESENT = 49, | |
763 | WLAN_STATUS_STA_NOT_QSTA = 50, | |
a9de8ce0 JB |
764 | }; |
765 | ||
766 | ||
767 | /* Reason codes */ | |
768 | enum ieee80211_reasoncode { | |
769 | WLAN_REASON_UNSPECIFIED = 1, | |
770 | WLAN_REASON_PREV_AUTH_NOT_VALID = 2, | |
771 | WLAN_REASON_DEAUTH_LEAVING = 3, | |
772 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, | |
773 | WLAN_REASON_DISASSOC_AP_BUSY = 5, | |
774 | WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, | |
775 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, | |
776 | WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, | |
777 | WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, | |
778 | /* 802.11h */ | |
779 | WLAN_REASON_DISASSOC_BAD_POWER = 10, | |
780 | WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, | |
781 | /* 802.11i */ | |
782 | WLAN_REASON_INVALID_IE = 13, | |
783 | WLAN_REASON_MIC_FAILURE = 14, | |
784 | WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, | |
785 | WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, | |
786 | WLAN_REASON_IE_DIFFERENT = 17, | |
787 | WLAN_REASON_INVALID_GROUP_CIPHER = 18, | |
788 | WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, | |
789 | WLAN_REASON_INVALID_AKMP = 20, | |
790 | WLAN_REASON_UNSUPP_RSN_VERSION = 21, | |
791 | WLAN_REASON_INVALID_RSN_IE_CAP = 22, | |
792 | WLAN_REASON_IEEE8021X_FAILED = 23, | |
793 | WLAN_REASON_CIPHER_SUITE_REJECTED = 24, | |
6b4e3241 RR |
794 | /* 802.11e */ |
795 | WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, | |
796 | WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, | |
797 | WLAN_REASON_DISASSOC_LOW_ACK = 34, | |
798 | WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, | |
799 | WLAN_REASON_QSTA_LEAVE_QBSS = 36, | |
800 | WLAN_REASON_QSTA_NOT_USE = 37, | |
801 | WLAN_REASON_QSTA_REQUIRE_SETUP = 38, | |
802 | WLAN_REASON_QSTA_TIMEOUT = 39, | |
803 | WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, | |
a9de8ce0 JB |
804 | }; |
805 | ||
806 | ||
807 | /* Information Element IDs */ | |
808 | enum ieee80211_eid { | |
809 | WLAN_EID_SSID = 0, | |
810 | WLAN_EID_SUPP_RATES = 1, | |
811 | WLAN_EID_FH_PARAMS = 2, | |
812 | WLAN_EID_DS_PARAMS = 3, | |
813 | WLAN_EID_CF_PARAMS = 4, | |
814 | WLAN_EID_TIM = 5, | |
815 | WLAN_EID_IBSS_PARAMS = 6, | |
816 | WLAN_EID_CHALLENGE = 16, | |
817 | /* 802.11d */ | |
818 | WLAN_EID_COUNTRY = 7, | |
819 | WLAN_EID_HP_PARAMS = 8, | |
820 | WLAN_EID_HP_TABLE = 9, | |
821 | WLAN_EID_REQUEST = 10, | |
6b4e3241 RR |
822 | /* 802.11e */ |
823 | WLAN_EID_QBSS_LOAD = 11, | |
824 | WLAN_EID_EDCA_PARAM_SET = 12, | |
825 | WLAN_EID_TSPEC = 13, | |
826 | WLAN_EID_TCLAS = 14, | |
827 | WLAN_EID_SCHEDULE = 15, | |
828 | WLAN_EID_TS_DELAY = 43, | |
829 | WLAN_EID_TCLAS_PROCESSING = 44, | |
830 | WLAN_EID_QOS_CAPA = 46, | |
d619ee08 LCC |
831 | /* 802.11s |
832 | * | |
833 | * All mesh EID numbers are pending IEEE 802.11 ANA approval. | |
834 | * The numbers have been incremented from those suggested in | |
835 | * 802.11s/D2.0 so that MESH_CONFIG does not conflict with | |
836 | * EXT_SUPP_RATES. | |
837 | */ | |
838 | WLAN_EID_MESH_CONFIG = 51, | |
839 | WLAN_EID_MESH_ID = 52, | |
840 | WLAN_EID_PEER_LINK = 55, | |
841 | WLAN_EID_PREQ = 68, | |
842 | WLAN_EID_PREP = 69, | |
843 | WLAN_EID_PERR = 70, | |
a9de8ce0 JB |
844 | /* 802.11h */ |
845 | WLAN_EID_PWR_CONSTRAINT = 32, | |
846 | WLAN_EID_PWR_CAPABILITY = 33, | |
847 | WLAN_EID_TPC_REQUEST = 34, | |
848 | WLAN_EID_TPC_REPORT = 35, | |
849 | WLAN_EID_SUPPORTED_CHANNELS = 36, | |
850 | WLAN_EID_CHANNEL_SWITCH = 37, | |
851 | WLAN_EID_MEASURE_REQUEST = 38, | |
852 | WLAN_EID_MEASURE_REPORT = 39, | |
853 | WLAN_EID_QUIET = 40, | |
854 | WLAN_EID_IBSS_DFS = 41, | |
855 | /* 802.11g */ | |
856 | WLAN_EID_ERP_INFO = 42, | |
857 | WLAN_EID_EXT_SUPP_RATES = 50, | |
6b4e3241 RR |
858 | /* 802.11n */ |
859 | WLAN_EID_HT_CAPABILITY = 45, | |
860 | WLAN_EID_HT_EXTRA_INFO = 61, | |
a9de8ce0 JB |
861 | /* 802.11i */ |
862 | WLAN_EID_RSN = 48, | |
863 | WLAN_EID_WPA = 221, | |
864 | WLAN_EID_GENERIC = 221, | |
865 | WLAN_EID_VENDOR_SPECIFIC = 221, | |
866 | WLAN_EID_QOS_PARAMETER = 222 | |
867 | }; | |
868 | ||
6b4e3241 RR |
869 | /* Action category code */ |
870 | enum ieee80211_category { | |
871 | WLAN_CATEGORY_SPECTRUM_MGMT = 0, | |
872 | WLAN_CATEGORY_QOS = 1, | |
873 | WLAN_CATEGORY_DLS = 2, | |
874 | WLAN_CATEGORY_BACK = 3, | |
875 | WLAN_CATEGORY_WMM = 17, | |
876 | }; | |
877 | ||
878 | /* BACK action code */ | |
879 | enum ieee80211_back_actioncode { | |
880 | WLAN_ACTION_ADDBA_REQ = 0, | |
881 | WLAN_ACTION_ADDBA_RESP = 1, | |
882 | WLAN_ACTION_DELBA = 2, | |
883 | }; | |
884 | ||
07db2183 RR |
885 | /* BACK (block-ack) parties */ |
886 | enum ieee80211_back_parties { | |
887 | WLAN_BACK_RECIPIENT = 0, | |
888 | WLAN_BACK_INITIATOR = 1, | |
889 | WLAN_BACK_TIMER = 2, | |
890 | }; | |
891 | ||
6b4e3241 RR |
892 | /* A-MSDU 802.11n */ |
893 | #define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080 | |
894 | ||
a9de8ce0 JB |
895 | /* cipher suite selectors */ |
896 | #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 | |
897 | #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 | |
898 | #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 | |
899 | /* reserved: 0x000FAC03 */ | |
900 | #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 | |
901 | #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 | |
902 | ||
903 | #define WLAN_MAX_KEY_LEN 32 | |
904 | ||
fd7c8a40 HH |
905 | /** |
906 | * ieee80211_get_qos_ctl - get pointer to qos control bytes | |
907 | * @hdr: the frame | |
908 | * | |
909 | * The qos ctrl bytes come after the frame_control, duration, seq_num | |
910 | * and 3 or 4 addresses of length ETH_ALEN. | |
911 | * 3 addr: 2 + 2 + 2 + 3*6 = 24 | |
912 | * 4 addr: 2 + 2 + 2 + 4*6 = 30 | |
913 | */ | |
914 | static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) | |
915 | { | |
916 | if (ieee80211_has_a4(hdr->frame_control)) | |
917 | return (u8 *)hdr + 30; | |
918 | else | |
919 | return (u8 *)hdr + 24; | |
920 | } | |
921 | ||
f97df02e JB |
922 | /** |
923 | * ieee80211_get_SA - get pointer to SA | |
fd7c8a40 | 924 | * @hdr: the frame |
f97df02e JB |
925 | * |
926 | * Given an 802.11 frame, this function returns the offset | |
927 | * to the source address (SA). It does not verify that the | |
928 | * header is long enough to contain the address, and the | |
929 | * header must be long enough to contain the frame control | |
930 | * field. | |
f97df02e JB |
931 | */ |
932 | static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) | |
933 | { | |
fd7c8a40 | 934 | if (ieee80211_has_a4(hdr->frame_control)) |
5a433b3a | 935 | return hdr->addr4; |
fd7c8a40 HH |
936 | if (ieee80211_has_fromds(hdr->frame_control)) |
937 | return hdr->addr3; | |
938 | return hdr->addr2; | |
f97df02e JB |
939 | } |
940 | ||
941 | /** | |
942 | * ieee80211_get_DA - get pointer to DA | |
fd7c8a40 | 943 | * @hdr: the frame |
f97df02e JB |
944 | * |
945 | * Given an 802.11 frame, this function returns the offset | |
946 | * to the destination address (DA). It does not verify that | |
947 | * the header is long enough to contain the address, and the | |
948 | * header must be long enough to contain the frame control | |
949 | * field. | |
f97df02e JB |
950 | */ |
951 | static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) | |
952 | { | |
fd7c8a40 | 953 | if (ieee80211_has_tods(hdr->frame_control)) |
f97df02e | 954 | return hdr->addr3; |
5a433b3a HH |
955 | else |
956 | return hdr->addr1; | |
f97df02e JB |
957 | } |
958 | ||
a9de8ce0 | 959 | #endif /* IEEE80211_H */ |