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[mirror_ubuntu-artful-kernel.git] / include / linux / ieee80211.h
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 * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
10 * Copyright (c) 2016 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17 #ifndef LINUX_IEEE80211_H
18 #define LINUX_IEEE80211_H
19
20 #include <linux/types.h>
21 #include <linux/if_ether.h>
22 #include <linux/etherdevice.h>
23 #include <asm/byteorder.h>
24 #include <asm/unaligned.h>
25
26 /*
27 * DS bit usage
28 *
29 * TA = transmitter address
30 * RA = receiver address
31 * DA = destination address
32 * SA = source address
33 *
34 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use
35 * -----------------------------------------------------------------
36 * 0 0 DA SA BSSID - IBSS/DLS
37 * 0 1 DA BSSID SA - AP -> STA
38 * 1 0 BSSID SA DA - AP <- STA
39 * 1 1 RA TA DA SA unspecified (WDS)
40 */
41
42 #define FCS_LEN 4
43
44 #define IEEE80211_FCTL_VERS 0x0003
45 #define IEEE80211_FCTL_FTYPE 0x000c
46 #define IEEE80211_FCTL_STYPE 0x00f0
47 #define IEEE80211_FCTL_TODS 0x0100
48 #define IEEE80211_FCTL_FROMDS 0x0200
49 #define IEEE80211_FCTL_MOREFRAGS 0x0400
50 #define IEEE80211_FCTL_RETRY 0x0800
51 #define IEEE80211_FCTL_PM 0x1000
52 #define IEEE80211_FCTL_MOREDATA 0x2000
53 #define IEEE80211_FCTL_PROTECTED 0x4000
54 #define IEEE80211_FCTL_ORDER 0x8000
55 #define IEEE80211_FCTL_CTL_EXT 0x0f00
56
57 #define IEEE80211_SCTL_FRAG 0x000F
58 #define IEEE80211_SCTL_SEQ 0xFFF0
59
60 #define IEEE80211_FTYPE_MGMT 0x0000
61 #define IEEE80211_FTYPE_CTL 0x0004
62 #define IEEE80211_FTYPE_DATA 0x0008
63 #define IEEE80211_FTYPE_EXT 0x000c
64
65 /* management */
66 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
67 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
68 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
69 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
70 #define IEEE80211_STYPE_PROBE_REQ 0x0040
71 #define IEEE80211_STYPE_PROBE_RESP 0x0050
72 #define IEEE80211_STYPE_BEACON 0x0080
73 #define IEEE80211_STYPE_ATIM 0x0090
74 #define IEEE80211_STYPE_DISASSOC 0x00A0
75 #define IEEE80211_STYPE_AUTH 0x00B0
76 #define IEEE80211_STYPE_DEAUTH 0x00C0
77 #define IEEE80211_STYPE_ACTION 0x00D0
78
79 /* control */
80 #define IEEE80211_STYPE_CTL_EXT 0x0060
81 #define IEEE80211_STYPE_BACK_REQ 0x0080
82 #define IEEE80211_STYPE_BACK 0x0090
83 #define IEEE80211_STYPE_PSPOLL 0x00A0
84 #define IEEE80211_STYPE_RTS 0x00B0
85 #define IEEE80211_STYPE_CTS 0x00C0
86 #define IEEE80211_STYPE_ACK 0x00D0
87 #define IEEE80211_STYPE_CFEND 0x00E0
88 #define IEEE80211_STYPE_CFENDACK 0x00F0
89
90 /* data */
91 #define IEEE80211_STYPE_DATA 0x0000
92 #define IEEE80211_STYPE_DATA_CFACK 0x0010
93 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
94 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
95 #define IEEE80211_STYPE_NULLFUNC 0x0040
96 #define IEEE80211_STYPE_CFACK 0x0050
97 #define IEEE80211_STYPE_CFPOLL 0x0060
98 #define IEEE80211_STYPE_CFACKPOLL 0x0070
99 #define IEEE80211_STYPE_QOS_DATA 0x0080
100 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
101 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
102 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
103 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
104 #define IEEE80211_STYPE_QOS_CFACK 0x00D0
105 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
106 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
107
108 /* extension, added by 802.11ad */
109 #define IEEE80211_STYPE_DMG_BEACON 0x0000
110
111 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
112 #define IEEE80211_CTL_EXT_POLL 0x2000
113 #define IEEE80211_CTL_EXT_SPR 0x3000
114 #define IEEE80211_CTL_EXT_GRANT 0x4000
115 #define IEEE80211_CTL_EXT_DMG_CTS 0x5000
116 #define IEEE80211_CTL_EXT_DMG_DTS 0x6000
117 #define IEEE80211_CTL_EXT_SSW 0x8000
118 #define IEEE80211_CTL_EXT_SSW_FBACK 0x9000
119 #define IEEE80211_CTL_EXT_SSW_ACK 0xa000
120
121
122 #define IEEE80211_SN_MASK ((IEEE80211_SCTL_SEQ) >> 4)
123 #define IEEE80211_MAX_SN IEEE80211_SN_MASK
124 #define IEEE80211_SN_MODULO (IEEE80211_MAX_SN + 1)
125
126 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
127 {
128 return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
129 }
130
131 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
132 {
133 return (sn1 + sn2) & IEEE80211_SN_MASK;
134 }
135
136 static inline u16 ieee80211_sn_inc(u16 sn)
137 {
138 return ieee80211_sn_add(sn, 1);
139 }
140
141 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
142 {
143 return (sn1 - sn2) & IEEE80211_SN_MASK;
144 }
145
146 #define IEEE80211_SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
147 #define IEEE80211_SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
148
149 /* miscellaneous IEEE 802.11 constants */
150 #define IEEE80211_MAX_FRAG_THRESHOLD 2352
151 #define IEEE80211_MAX_RTS_THRESHOLD 2353
152 #define IEEE80211_MAX_AID 2007
153 #define IEEE80211_MAX_TIM_LEN 251
154 #define IEEE80211_MAX_MESH_PEERINGS 63
155 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
156 6.2.1.1.2.
157
158 802.11e clarifies the figure in section 7.1.2. The frame body is
159 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
160 #define IEEE80211_MAX_DATA_LEN 2304
161 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
162 * to 7920 bytes, see 8.2.3 General frame format
163 */
164 #define IEEE80211_MAX_DATA_LEN_DMG 7920
165 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
166 #define IEEE80211_MAX_FRAME_LEN 2352
167
168 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
169 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095
170
171 /* Maximal size of an A-MSDU */
172 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
173 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935
174
175 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
176 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
177 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
178
179 #define IEEE80211_MAX_SSID_LEN 32
180
181 #define IEEE80211_MAX_MESH_ID_LEN 32
182
183 #define IEEE80211_FIRST_TSPEC_TSID 8
184 #define IEEE80211_NUM_TIDS 16
185
186 /* number of user priorities 802.11 uses */
187 #define IEEE80211_NUM_UPS 8
188
189 #define IEEE80211_QOS_CTL_LEN 2
190 /* 1d tag mask */
191 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
192 /* TID mask */
193 #define IEEE80211_QOS_CTL_TID_MASK 0x000f
194 /* EOSP */
195 #define IEEE80211_QOS_CTL_EOSP 0x0010
196 /* ACK policy */
197 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000
198 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
199 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040
200 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060
201 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
202 /* A-MSDU 802.11n */
203 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
204 /* Mesh Control 802.11s */
205 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
206
207 /* Mesh Power Save Level */
208 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL 0x0200
209 /* Mesh Receiver Service Period Initiated */
210 #define IEEE80211_QOS_CTL_RSPI 0x0400
211
212 /* U-APSD queue for WMM IEs sent by AP */
213 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
214 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
215
216 /* U-APSD queues for WMM IEs sent by STA */
217 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
218 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
219 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
220 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
221 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
222
223 /* U-APSD max SP length for WMM IEs sent by STA */
224 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
225 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
226 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
227 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
228 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
229 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
230
231 #define IEEE80211_HT_CTL_LEN 4
232
233 struct ieee80211_hdr {
234 __le16 frame_control;
235 __le16 duration_id;
236 u8 addr1[ETH_ALEN];
237 u8 addr2[ETH_ALEN];
238 u8 addr3[ETH_ALEN];
239 __le16 seq_ctrl;
240 u8 addr4[ETH_ALEN];
241 } __packed __aligned(2);
242
243 struct ieee80211_hdr_3addr {
244 __le16 frame_control;
245 __le16 duration_id;
246 u8 addr1[ETH_ALEN];
247 u8 addr2[ETH_ALEN];
248 u8 addr3[ETH_ALEN];
249 __le16 seq_ctrl;
250 } __packed __aligned(2);
251
252 struct ieee80211_qos_hdr {
253 __le16 frame_control;
254 __le16 duration_id;
255 u8 addr1[ETH_ALEN];
256 u8 addr2[ETH_ALEN];
257 u8 addr3[ETH_ALEN];
258 __le16 seq_ctrl;
259 __le16 qos_ctrl;
260 } __packed __aligned(2);
261
262 /**
263 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
264 * @fc: frame control bytes in little-endian byteorder
265 */
266 static inline bool ieee80211_has_tods(__le16 fc)
267 {
268 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
269 }
270
271 /**
272 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
273 * @fc: frame control bytes in little-endian byteorder
274 */
275 static inline bool ieee80211_has_fromds(__le16 fc)
276 {
277 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
278 }
279
280 /**
281 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
282 * @fc: frame control bytes in little-endian byteorder
283 */
284 static inline bool ieee80211_has_a4(__le16 fc)
285 {
286 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
287 return (fc & tmp) == tmp;
288 }
289
290 /**
291 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
292 * @fc: frame control bytes in little-endian byteorder
293 */
294 static inline bool ieee80211_has_morefrags(__le16 fc)
295 {
296 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
297 }
298
299 /**
300 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
301 * @fc: frame control bytes in little-endian byteorder
302 */
303 static inline bool ieee80211_has_retry(__le16 fc)
304 {
305 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
306 }
307
308 /**
309 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
310 * @fc: frame control bytes in little-endian byteorder
311 */
312 static inline bool ieee80211_has_pm(__le16 fc)
313 {
314 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
315 }
316
317 /**
318 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
319 * @fc: frame control bytes in little-endian byteorder
320 */
321 static inline bool ieee80211_has_moredata(__le16 fc)
322 {
323 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
324 }
325
326 /**
327 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
328 * @fc: frame control bytes in little-endian byteorder
329 */
330 static inline bool ieee80211_has_protected(__le16 fc)
331 {
332 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
333 }
334
335 /**
336 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
337 * @fc: frame control bytes in little-endian byteorder
338 */
339 static inline bool ieee80211_has_order(__le16 fc)
340 {
341 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
342 }
343
344 /**
345 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
346 * @fc: frame control bytes in little-endian byteorder
347 */
348 static inline bool ieee80211_is_mgmt(__le16 fc)
349 {
350 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
351 cpu_to_le16(IEEE80211_FTYPE_MGMT);
352 }
353
354 /**
355 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
356 * @fc: frame control bytes in little-endian byteorder
357 */
358 static inline bool ieee80211_is_ctl(__le16 fc)
359 {
360 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
361 cpu_to_le16(IEEE80211_FTYPE_CTL);
362 }
363
364 /**
365 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
366 * @fc: frame control bytes in little-endian byteorder
367 */
368 static inline bool ieee80211_is_data(__le16 fc)
369 {
370 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
371 cpu_to_le16(IEEE80211_FTYPE_DATA);
372 }
373
374 /**
375 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
376 * @fc: frame control bytes in little-endian byteorder
377 */
378 static inline bool ieee80211_is_data_qos(__le16 fc)
379 {
380 /*
381 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
382 * to check the one bit
383 */
384 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
385 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
386 }
387
388 /**
389 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
390 * @fc: frame control bytes in little-endian byteorder
391 */
392 static inline bool ieee80211_is_data_present(__le16 fc)
393 {
394 /*
395 * mask with 0x40 and test that that bit is clear to only return true
396 * for the data-containing substypes.
397 */
398 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
399 cpu_to_le16(IEEE80211_FTYPE_DATA);
400 }
401
402 /**
403 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
404 * @fc: frame control bytes in little-endian byteorder
405 */
406 static inline bool ieee80211_is_assoc_req(__le16 fc)
407 {
408 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
409 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
410 }
411
412 /**
413 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
414 * @fc: frame control bytes in little-endian byteorder
415 */
416 static inline bool ieee80211_is_assoc_resp(__le16 fc)
417 {
418 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
419 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
420 }
421
422 /**
423 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
424 * @fc: frame control bytes in little-endian byteorder
425 */
426 static inline bool ieee80211_is_reassoc_req(__le16 fc)
427 {
428 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
429 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
430 }
431
432 /**
433 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
434 * @fc: frame control bytes in little-endian byteorder
435 */
436 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
437 {
438 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
439 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
440 }
441
442 /**
443 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
444 * @fc: frame control bytes in little-endian byteorder
445 */
446 static inline bool ieee80211_is_probe_req(__le16 fc)
447 {
448 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
449 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
450 }
451
452 /**
453 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
454 * @fc: frame control bytes in little-endian byteorder
455 */
456 static inline bool ieee80211_is_probe_resp(__le16 fc)
457 {
458 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
459 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
460 }
461
462 /**
463 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
464 * @fc: frame control bytes in little-endian byteorder
465 */
466 static inline bool ieee80211_is_beacon(__le16 fc)
467 {
468 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
469 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
470 }
471
472 /**
473 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
474 * @fc: frame control bytes in little-endian byteorder
475 */
476 static inline bool ieee80211_is_atim(__le16 fc)
477 {
478 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
479 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
480 }
481
482 /**
483 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
484 * @fc: frame control bytes in little-endian byteorder
485 */
486 static inline bool ieee80211_is_disassoc(__le16 fc)
487 {
488 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
489 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
490 }
491
492 /**
493 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
494 * @fc: frame control bytes in little-endian byteorder
495 */
496 static inline bool ieee80211_is_auth(__le16 fc)
497 {
498 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
499 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
500 }
501
502 /**
503 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
504 * @fc: frame control bytes in little-endian byteorder
505 */
506 static inline bool ieee80211_is_deauth(__le16 fc)
507 {
508 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
509 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
510 }
511
512 /**
513 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
514 * @fc: frame control bytes in little-endian byteorder
515 */
516 static inline bool ieee80211_is_action(__le16 fc)
517 {
518 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
519 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
520 }
521
522 /**
523 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
524 * @fc: frame control bytes in little-endian byteorder
525 */
526 static inline bool ieee80211_is_back_req(__le16 fc)
527 {
528 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
529 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
530 }
531
532 /**
533 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
534 * @fc: frame control bytes in little-endian byteorder
535 */
536 static inline bool ieee80211_is_back(__le16 fc)
537 {
538 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
539 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
540 }
541
542 /**
543 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
544 * @fc: frame control bytes in little-endian byteorder
545 */
546 static inline bool ieee80211_is_pspoll(__le16 fc)
547 {
548 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
549 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
550 }
551
552 /**
553 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
554 * @fc: frame control bytes in little-endian byteorder
555 */
556 static inline bool ieee80211_is_rts(__le16 fc)
557 {
558 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
559 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
560 }
561
562 /**
563 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
564 * @fc: frame control bytes in little-endian byteorder
565 */
566 static inline bool ieee80211_is_cts(__le16 fc)
567 {
568 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
569 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
570 }
571
572 /**
573 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
574 * @fc: frame control bytes in little-endian byteorder
575 */
576 static inline bool ieee80211_is_ack(__le16 fc)
577 {
578 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
579 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
580 }
581
582 /**
583 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
584 * @fc: frame control bytes in little-endian byteorder
585 */
586 static inline bool ieee80211_is_cfend(__le16 fc)
587 {
588 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
589 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
590 }
591
592 /**
593 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
594 * @fc: frame control bytes in little-endian byteorder
595 */
596 static inline bool ieee80211_is_cfendack(__le16 fc)
597 {
598 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
599 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
600 }
601
602 /**
603 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
604 * @fc: frame control bytes in little-endian byteorder
605 */
606 static inline bool ieee80211_is_nullfunc(__le16 fc)
607 {
608 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
609 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
610 }
611
612 /**
613 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
614 * @fc: frame control bytes in little-endian byteorder
615 */
616 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
617 {
618 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
619 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
620 }
621
622 /**
623 * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
624 * @fc: frame control field in little-endian byteorder
625 */
626 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
627 {
628 /* IEEE 802.11-2012, definition of "bufferable management frame";
629 * note that this ignores the IBSS special case. */
630 return ieee80211_is_mgmt(fc) &&
631 (ieee80211_is_action(fc) ||
632 ieee80211_is_disassoc(fc) ||
633 ieee80211_is_deauth(fc));
634 }
635
636 /**
637 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
638 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
639 */
640 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
641 {
642 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
643 }
644
645 /**
646 * ieee80211_is_frag - check if a frame is a fragment
647 * @hdr: 802.11 header of the frame
648 */
649 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
650 {
651 return ieee80211_has_morefrags(hdr->frame_control) ||
652 hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
653 }
654
655 struct ieee80211s_hdr {
656 u8 flags;
657 u8 ttl;
658 __le32 seqnum;
659 u8 eaddr1[ETH_ALEN];
660 u8 eaddr2[ETH_ALEN];
661 } __packed __aligned(2);
662
663 /* Mesh flags */
664 #define MESH_FLAGS_AE_A4 0x1
665 #define MESH_FLAGS_AE_A5_A6 0x2
666 #define MESH_FLAGS_AE 0x3
667 #define MESH_FLAGS_PS_DEEP 0x4
668
669 /**
670 * enum ieee80211_preq_flags - mesh PREQ element flags
671 *
672 * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
673 */
674 enum ieee80211_preq_flags {
675 IEEE80211_PREQ_PROACTIVE_PREP_FLAG = 1<<2,
676 };
677
678 /**
679 * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
680 *
681 * @IEEE80211_PREQ_TO_FLAG: target only subfield
682 * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
683 */
684 enum ieee80211_preq_target_flags {
685 IEEE80211_PREQ_TO_FLAG = 1<<0,
686 IEEE80211_PREQ_USN_FLAG = 1<<2,
687 };
688
689 /**
690 * struct ieee80211_quiet_ie
691 *
692 * This structure refers to "Quiet information element"
693 */
694 struct ieee80211_quiet_ie {
695 u8 count;
696 u8 period;
697 __le16 duration;
698 __le16 offset;
699 } __packed;
700
701 /**
702 * struct ieee80211_msrment_ie
703 *
704 * This structure refers to "Measurement Request/Report information element"
705 */
706 struct ieee80211_msrment_ie {
707 u8 token;
708 u8 mode;
709 u8 type;
710 u8 request[0];
711 } __packed;
712
713 /**
714 * struct ieee80211_channel_sw_ie
715 *
716 * This structure refers to "Channel Switch Announcement information element"
717 */
718 struct ieee80211_channel_sw_ie {
719 u8 mode;
720 u8 new_ch_num;
721 u8 count;
722 } __packed;
723
724 /**
725 * struct ieee80211_ext_chansw_ie
726 *
727 * This structure represents the "Extended Channel Switch Announcement element"
728 */
729 struct ieee80211_ext_chansw_ie {
730 u8 mode;
731 u8 new_operating_class;
732 u8 new_ch_num;
733 u8 count;
734 } __packed;
735
736 /**
737 * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
738 * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
739 * values here
740 * This structure represents the "Secondary Channel Offset element"
741 */
742 struct ieee80211_sec_chan_offs_ie {
743 u8 sec_chan_offs;
744 } __packed;
745
746 /**
747 * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
748 *
749 * This structure represents the "Mesh Channel Switch Paramters element"
750 */
751 struct ieee80211_mesh_chansw_params_ie {
752 u8 mesh_ttl;
753 u8 mesh_flags;
754 __le16 mesh_reason;
755 __le16 mesh_pre_value;
756 } __packed;
757
758 /**
759 * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
760 */
761 struct ieee80211_wide_bw_chansw_ie {
762 u8 new_channel_width;
763 u8 new_center_freq_seg0, new_center_freq_seg1;
764 } __packed;
765
766 /**
767 * struct ieee80211_tim
768 *
769 * This structure refers to "Traffic Indication Map information element"
770 */
771 struct ieee80211_tim_ie {
772 u8 dtim_count;
773 u8 dtim_period;
774 u8 bitmap_ctrl;
775 /* variable size: 1 - 251 bytes */
776 u8 virtual_map[1];
777 } __packed;
778
779 /**
780 * struct ieee80211_meshconf_ie
781 *
782 * This structure refers to "Mesh Configuration information element"
783 */
784 struct ieee80211_meshconf_ie {
785 u8 meshconf_psel;
786 u8 meshconf_pmetric;
787 u8 meshconf_congest;
788 u8 meshconf_synch;
789 u8 meshconf_auth;
790 u8 meshconf_form;
791 u8 meshconf_cap;
792 } __packed;
793
794 /**
795 * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
796 *
797 * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
798 * additional mesh peerings with other mesh STAs
799 * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
800 * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
801 * is ongoing
802 * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
803 * neighbors in deep sleep mode
804 */
805 enum mesh_config_capab_flags {
806 IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS = 0x01,
807 IEEE80211_MESHCONF_CAPAB_FORWARDING = 0x08,
808 IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING = 0x20,
809 IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL = 0x40,
810 };
811
812 /**
813 * mesh channel switch parameters element's flag indicator
814 *
815 */
816 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
817 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
818 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
819
820 /**
821 * struct ieee80211_rann_ie
822 *
823 * This structure refers to "Root Announcement information element"
824 */
825 struct ieee80211_rann_ie {
826 u8 rann_flags;
827 u8 rann_hopcount;
828 u8 rann_ttl;
829 u8 rann_addr[ETH_ALEN];
830 __le32 rann_seq;
831 __le32 rann_interval;
832 __le32 rann_metric;
833 } __packed;
834
835 enum ieee80211_rann_flags {
836 RANN_FLAG_IS_GATE = 1 << 0,
837 };
838
839 enum ieee80211_ht_chanwidth_values {
840 IEEE80211_HT_CHANWIDTH_20MHZ = 0,
841 IEEE80211_HT_CHANWIDTH_ANY = 1,
842 };
843
844 /**
845 * enum ieee80211_opmode_bits - VHT operating mode field bits
846 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
847 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
848 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
849 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
850 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
851 * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
852 * (the NSS value is the value of this field + 1)
853 * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
854 * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
855 * using a beamforming steering matrix
856 */
857 enum ieee80211_vht_opmode_bits {
858 IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK = 3,
859 IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ = 0,
860 IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ = 1,
861 IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ = 2,
862 IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
863 IEEE80211_OPMODE_NOTIF_RX_NSS_MASK = 0x70,
864 IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT = 4,
865 IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF = 0x80,
866 };
867
868 #define WLAN_SA_QUERY_TR_ID_LEN 2
869 #define WLAN_MEMBERSHIP_LEN 8
870 #define WLAN_USER_POSITION_LEN 16
871
872 /**
873 * struct ieee80211_tpc_report_ie
874 *
875 * This structure refers to "TPC Report element"
876 */
877 struct ieee80211_tpc_report_ie {
878 u8 tx_power;
879 u8 link_margin;
880 } __packed;
881
882 struct ieee80211_mgmt {
883 __le16 frame_control;
884 __le16 duration;
885 u8 da[ETH_ALEN];
886 u8 sa[ETH_ALEN];
887 u8 bssid[ETH_ALEN];
888 __le16 seq_ctrl;
889 union {
890 struct {
891 __le16 auth_alg;
892 __le16 auth_transaction;
893 __le16 status_code;
894 /* possibly followed by Challenge text */
895 u8 variable[0];
896 } __packed auth;
897 struct {
898 __le16 reason_code;
899 } __packed deauth;
900 struct {
901 __le16 capab_info;
902 __le16 listen_interval;
903 /* followed by SSID and Supported rates */
904 u8 variable[0];
905 } __packed assoc_req;
906 struct {
907 __le16 capab_info;
908 __le16 status_code;
909 __le16 aid;
910 /* followed by Supported rates */
911 u8 variable[0];
912 } __packed assoc_resp, reassoc_resp;
913 struct {
914 __le16 capab_info;
915 __le16 listen_interval;
916 u8 current_ap[ETH_ALEN];
917 /* followed by SSID and Supported rates */
918 u8 variable[0];
919 } __packed reassoc_req;
920 struct {
921 __le16 reason_code;
922 } __packed disassoc;
923 struct {
924 __le64 timestamp;
925 __le16 beacon_int;
926 __le16 capab_info;
927 /* followed by some of SSID, Supported rates,
928 * FH Params, DS Params, CF Params, IBSS Params, TIM */
929 u8 variable[0];
930 } __packed beacon;
931 struct {
932 /* only variable items: SSID, Supported rates */
933 u8 variable[0];
934 } __packed probe_req;
935 struct {
936 __le64 timestamp;
937 __le16 beacon_int;
938 __le16 capab_info;
939 /* followed by some of SSID, Supported rates,
940 * FH Params, DS Params, CF Params, IBSS Params */
941 u8 variable[0];
942 } __packed probe_resp;
943 struct {
944 u8 category;
945 union {
946 struct {
947 u8 action_code;
948 u8 dialog_token;
949 u8 status_code;
950 u8 variable[0];
951 } __packed wme_action;
952 struct{
953 u8 action_code;
954 u8 variable[0];
955 } __packed chan_switch;
956 struct{
957 u8 action_code;
958 struct ieee80211_ext_chansw_ie data;
959 u8 variable[0];
960 } __packed ext_chan_switch;
961 struct{
962 u8 action_code;
963 u8 dialog_token;
964 u8 element_id;
965 u8 length;
966 struct ieee80211_msrment_ie msr_elem;
967 } __packed measurement;
968 struct{
969 u8 action_code;
970 u8 dialog_token;
971 __le16 capab;
972 __le16 timeout;
973 __le16 start_seq_num;
974 } __packed addba_req;
975 struct{
976 u8 action_code;
977 u8 dialog_token;
978 __le16 status;
979 __le16 capab;
980 __le16 timeout;
981 } __packed addba_resp;
982 struct{
983 u8 action_code;
984 __le16 params;
985 __le16 reason_code;
986 } __packed delba;
987 struct {
988 u8 action_code;
989 u8 variable[0];
990 } __packed self_prot;
991 struct{
992 u8 action_code;
993 u8 variable[0];
994 } __packed mesh_action;
995 struct {
996 u8 action;
997 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
998 } __packed sa_query;
999 struct {
1000 u8 action;
1001 u8 smps_control;
1002 } __packed ht_smps;
1003 struct {
1004 u8 action_code;
1005 u8 chanwidth;
1006 } __packed ht_notify_cw;
1007 struct {
1008 u8 action_code;
1009 u8 dialog_token;
1010 __le16 capability;
1011 u8 variable[0];
1012 } __packed tdls_discover_resp;
1013 struct {
1014 u8 action_code;
1015 u8 operating_mode;
1016 } __packed vht_opmode_notif;
1017 struct {
1018 u8 action_code;
1019 u8 membership[WLAN_MEMBERSHIP_LEN];
1020 u8 position[WLAN_USER_POSITION_LEN];
1021 } __packed vht_group_notif;
1022 struct {
1023 u8 action_code;
1024 u8 dialog_token;
1025 u8 tpc_elem_id;
1026 u8 tpc_elem_length;
1027 struct ieee80211_tpc_report_ie tpc;
1028 } __packed tpc_report;
1029 struct {
1030 u8 action_code;
1031 u8 dialog_token;
1032 u8 follow_up;
1033 u8 tod[6];
1034 u8 toa[6];
1035 __le16 tod_error;
1036 __le16 toa_error;
1037 u8 variable[0];
1038 } __packed ftm;
1039 } u;
1040 } __packed action;
1041 } u;
1042 } __packed __aligned(2);
1043
1044 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1045 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
1046
1047 /* mgmt header + 1 byte category code */
1048 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1049
1050
1051 /* Management MIC information element (IEEE 802.11w) */
1052 struct ieee80211_mmie {
1053 u8 element_id;
1054 u8 length;
1055 __le16 key_id;
1056 u8 sequence_number[6];
1057 u8 mic[8];
1058 } __packed;
1059
1060 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1061 struct ieee80211_mmie_16 {
1062 u8 element_id;
1063 u8 length;
1064 __le16 key_id;
1065 u8 sequence_number[6];
1066 u8 mic[16];
1067 } __packed;
1068
1069 struct ieee80211_vendor_ie {
1070 u8 element_id;
1071 u8 len;
1072 u8 oui[3];
1073 u8 oui_type;
1074 } __packed;
1075
1076 struct ieee80211_wmm_ac_param {
1077 u8 aci_aifsn; /* AIFSN, ACM, ACI */
1078 u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1079 __le16 txop_limit;
1080 } __packed;
1081
1082 struct ieee80211_wmm_param_ie {
1083 u8 element_id; /* Element ID: 221 (0xdd); */
1084 u8 len; /* Length: 24 */
1085 /* required fields for WMM version 1 */
1086 u8 oui[3]; /* 00:50:f2 */
1087 u8 oui_type; /* 2 */
1088 u8 oui_subtype; /* 1 */
1089 u8 version; /* 1 for WMM version 1.0 */
1090 u8 qos_info; /* AP/STA specific QoS info */
1091 u8 reserved; /* 0 */
1092 /* AC_BE, AC_BK, AC_VI, AC_VO */
1093 struct ieee80211_wmm_ac_param ac[4];
1094 } __packed;
1095
1096 /* Control frames */
1097 struct ieee80211_rts {
1098 __le16 frame_control;
1099 __le16 duration;
1100 u8 ra[ETH_ALEN];
1101 u8 ta[ETH_ALEN];
1102 } __packed __aligned(2);
1103
1104 struct ieee80211_cts {
1105 __le16 frame_control;
1106 __le16 duration;
1107 u8 ra[ETH_ALEN];
1108 } __packed __aligned(2);
1109
1110 struct ieee80211_pspoll {
1111 __le16 frame_control;
1112 __le16 aid;
1113 u8 bssid[ETH_ALEN];
1114 u8 ta[ETH_ALEN];
1115 } __packed __aligned(2);
1116
1117 /* TDLS */
1118
1119 /* Channel switch timing */
1120 struct ieee80211_ch_switch_timing {
1121 __le16 switch_time;
1122 __le16 switch_timeout;
1123 } __packed;
1124
1125 /* Link-id information element */
1126 struct ieee80211_tdls_lnkie {
1127 u8 ie_type; /* Link Identifier IE */
1128 u8 ie_len;
1129 u8 bssid[ETH_ALEN];
1130 u8 init_sta[ETH_ALEN];
1131 u8 resp_sta[ETH_ALEN];
1132 } __packed;
1133
1134 struct ieee80211_tdls_data {
1135 u8 da[ETH_ALEN];
1136 u8 sa[ETH_ALEN];
1137 __be16 ether_type;
1138 u8 payload_type;
1139 u8 category;
1140 u8 action_code;
1141 union {
1142 struct {
1143 u8 dialog_token;
1144 __le16 capability;
1145 u8 variable[0];
1146 } __packed setup_req;
1147 struct {
1148 __le16 status_code;
1149 u8 dialog_token;
1150 __le16 capability;
1151 u8 variable[0];
1152 } __packed setup_resp;
1153 struct {
1154 __le16 status_code;
1155 u8 dialog_token;
1156 u8 variable[0];
1157 } __packed setup_cfm;
1158 struct {
1159 __le16 reason_code;
1160 u8 variable[0];
1161 } __packed teardown;
1162 struct {
1163 u8 dialog_token;
1164 u8 variable[0];
1165 } __packed discover_req;
1166 struct {
1167 u8 target_channel;
1168 u8 oper_class;
1169 u8 variable[0];
1170 } __packed chan_switch_req;
1171 struct {
1172 __le16 status_code;
1173 u8 variable[0];
1174 } __packed chan_switch_resp;
1175 } u;
1176 } __packed;
1177
1178 /*
1179 * Peer-to-Peer IE attribute related definitions.
1180 */
1181 /**
1182 * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1183 */
1184 enum ieee80211_p2p_attr_id {
1185 IEEE80211_P2P_ATTR_STATUS = 0,
1186 IEEE80211_P2P_ATTR_MINOR_REASON,
1187 IEEE80211_P2P_ATTR_CAPABILITY,
1188 IEEE80211_P2P_ATTR_DEVICE_ID,
1189 IEEE80211_P2P_ATTR_GO_INTENT,
1190 IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1191 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1192 IEEE80211_P2P_ATTR_GROUP_BSSID,
1193 IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1194 IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1195 IEEE80211_P2P_ATTR_MANAGABILITY,
1196 IEEE80211_P2P_ATTR_CHANNEL_LIST,
1197 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1198 IEEE80211_P2P_ATTR_DEVICE_INFO,
1199 IEEE80211_P2P_ATTR_GROUP_INFO,
1200 IEEE80211_P2P_ATTR_GROUP_ID,
1201 IEEE80211_P2P_ATTR_INTERFACE,
1202 IEEE80211_P2P_ATTR_OPER_CHANNEL,
1203 IEEE80211_P2P_ATTR_INVITE_FLAGS,
1204 /* 19 - 220: Reserved */
1205 IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1206
1207 IEEE80211_P2P_ATTR_MAX
1208 };
1209
1210 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1211 /* Typical max value used here */
1212 #define IEEE80211_P2P_NOA_DESC_MAX 4
1213
1214 struct ieee80211_p2p_noa_desc {
1215 u8 count;
1216 __le32 duration;
1217 __le32 interval;
1218 __le32 start_time;
1219 } __packed;
1220
1221 struct ieee80211_p2p_noa_attr {
1222 u8 index;
1223 u8 oppps_ctwindow;
1224 struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1225 } __packed;
1226
1227 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
1228 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7F
1229
1230 /**
1231 * struct ieee80211_bar - HT Block Ack Request
1232 *
1233 * This structure refers to "HT BlockAckReq" as
1234 * described in 802.11n draft section 7.2.1.7.1
1235 */
1236 struct ieee80211_bar {
1237 __le16 frame_control;
1238 __le16 duration;
1239 __u8 ra[ETH_ALEN];
1240 __u8 ta[ETH_ALEN];
1241 __le16 control;
1242 __le16 start_seq_num;
1243 } __packed;
1244
1245 /* 802.11 BAR control masks */
1246 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
1247 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
1248 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1249 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
1250 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
1251
1252 #define IEEE80211_HT_MCS_MASK_LEN 10
1253
1254 /**
1255 * struct ieee80211_mcs_info - MCS information
1256 * @rx_mask: RX mask
1257 * @rx_highest: highest supported RX rate. If set represents
1258 * the highest supported RX data rate in units of 1 Mbps.
1259 * If this field is 0 this value should not be used to
1260 * consider the highest RX data rate supported.
1261 * @tx_params: TX parameters
1262 */
1263 struct ieee80211_mcs_info {
1264 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1265 __le16 rx_highest;
1266 u8 tx_params;
1267 u8 reserved[3];
1268 } __packed;
1269
1270 /* 802.11n HT capability MSC set */
1271 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
1272 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
1273 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
1274 /* value 0 == 1 stream etc */
1275 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
1276 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
1277 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1278 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
1279
1280 /*
1281 * 802.11n D5.0 20.3.5 / 20.6 says:
1282 * - indices 0 to 7 and 32 are single spatial stream
1283 * - 8 to 31 are multiple spatial streams using equal modulation
1284 * [8..15 for two streams, 16..23 for three and 24..31 for four]
1285 * - remainder are multiple spatial streams using unequal modulation
1286 */
1287 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1288 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1289 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1290
1291 /**
1292 * struct ieee80211_ht_cap - HT capabilities
1293 *
1294 * This structure is the "HT capabilities element" as
1295 * described in 802.11n D5.0 7.3.2.57
1296 */
1297 struct ieee80211_ht_cap {
1298 __le16 cap_info;
1299 u8 ampdu_params_info;
1300
1301 /* 16 bytes MCS information */
1302 struct ieee80211_mcs_info mcs;
1303
1304 __le16 extended_ht_cap_info;
1305 __le32 tx_BF_cap_info;
1306 u8 antenna_selection_info;
1307 } __packed;
1308
1309 /* 802.11n HT capabilities masks (for cap_info) */
1310 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
1311 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
1312 #define IEEE80211_HT_CAP_SM_PS 0x000C
1313 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
1314 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
1315 #define IEEE80211_HT_CAP_SGI_20 0x0020
1316 #define IEEE80211_HT_CAP_SGI_40 0x0040
1317 #define IEEE80211_HT_CAP_TX_STBC 0x0080
1318 #define IEEE80211_HT_CAP_RX_STBC 0x0300
1319 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
1320 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
1321 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
1322 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
1323 #define IEEE80211_HT_CAP_RESERVED 0x2000
1324 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
1325 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
1326
1327 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1328 #define IEEE80211_HT_EXT_CAP_PCO 0x0001
1329 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
1330 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
1331 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
1332 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
1333 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
1334 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
1335
1336 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1337 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
1338 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
1339 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
1340
1341 /*
1342 * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1343 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1344 */
1345 enum ieee80211_max_ampdu_length_exp {
1346 IEEE80211_HT_MAX_AMPDU_8K = 0,
1347 IEEE80211_HT_MAX_AMPDU_16K = 1,
1348 IEEE80211_HT_MAX_AMPDU_32K = 2,
1349 IEEE80211_HT_MAX_AMPDU_64K = 3
1350 };
1351
1352 /*
1353 * Maximum length of AMPDU that the STA can receive in VHT.
1354 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1355 */
1356 enum ieee80211_vht_max_ampdu_length_exp {
1357 IEEE80211_VHT_MAX_AMPDU_8K = 0,
1358 IEEE80211_VHT_MAX_AMPDU_16K = 1,
1359 IEEE80211_VHT_MAX_AMPDU_32K = 2,
1360 IEEE80211_VHT_MAX_AMPDU_64K = 3,
1361 IEEE80211_VHT_MAX_AMPDU_128K = 4,
1362 IEEE80211_VHT_MAX_AMPDU_256K = 5,
1363 IEEE80211_VHT_MAX_AMPDU_512K = 6,
1364 IEEE80211_VHT_MAX_AMPDU_1024K = 7
1365 };
1366
1367 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1368
1369 /* Minimum MPDU start spacing */
1370 enum ieee80211_min_mpdu_spacing {
1371 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1372 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1373 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1374 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1375 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1376 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1377 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1378 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1379 };
1380
1381 /**
1382 * struct ieee80211_ht_operation - HT operation IE
1383 *
1384 * This structure is the "HT operation element" as
1385 * described in 802.11n-2009 7.3.2.57
1386 */
1387 struct ieee80211_ht_operation {
1388 u8 primary_chan;
1389 u8 ht_param;
1390 __le16 operation_mode;
1391 __le16 stbc_param;
1392 u8 basic_set[16];
1393 } __packed;
1394
1395 /* for ht_param */
1396 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1397 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1398 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1399 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1400 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1401 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1402
1403 /* for operation_mode */
1404 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1405 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1406 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1407 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1408 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1409 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1410 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1411
1412 /* for stbc_param */
1413 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1414 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1415 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1416 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1417 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1418 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1419
1420
1421 /* block-ack parameters */
1422 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1423 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1424 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1425 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1426 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1427 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1428
1429 /*
1430 * A-PMDU buffer sizes
1431 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1432 */
1433 #define IEEE80211_MIN_AMPDU_BUF 0x8
1434 #define IEEE80211_MAX_AMPDU_BUF 0x40
1435
1436
1437 /* Spatial Multiplexing Power Save Modes (for capability) */
1438 #define WLAN_HT_CAP_SM_PS_STATIC 0
1439 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1440 #define WLAN_HT_CAP_SM_PS_INVALID 2
1441 #define WLAN_HT_CAP_SM_PS_DISABLED 3
1442
1443 /* for SM power control field lower two bits */
1444 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
1445 #define WLAN_HT_SMPS_CONTROL_STATIC 1
1446 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1447
1448 /**
1449 * struct ieee80211_vht_mcs_info - VHT MCS information
1450 * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1451 * @rx_highest: Indicates highest long GI VHT PPDU data rate
1452 * STA can receive. Rate expressed in units of 1 Mbps.
1453 * If this field is 0 this value should not be used to
1454 * consider the highest RX data rate supported.
1455 * The top 3 bits of this field are reserved.
1456 * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1457 * @tx_highest: Indicates highest long GI VHT PPDU data rate
1458 * STA can transmit. Rate expressed in units of 1 Mbps.
1459 * If this field is 0 this value should not be used to
1460 * consider the highest TX data rate supported.
1461 * The top 3 bits of this field are reserved.
1462 */
1463 struct ieee80211_vht_mcs_info {
1464 __le16 rx_mcs_map;
1465 __le16 rx_highest;
1466 __le16 tx_mcs_map;
1467 __le16 tx_highest;
1468 } __packed;
1469
1470 /**
1471 * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1472 * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1473 * number of streams
1474 * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1475 * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1476 * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1477 *
1478 * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1479 * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1480 * both split into 8 subfields by number of streams. These values indicate
1481 * which MCSes are supported for the number of streams the value appears
1482 * for.
1483 */
1484 enum ieee80211_vht_mcs_support {
1485 IEEE80211_VHT_MCS_SUPPORT_0_7 = 0,
1486 IEEE80211_VHT_MCS_SUPPORT_0_8 = 1,
1487 IEEE80211_VHT_MCS_SUPPORT_0_9 = 2,
1488 IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1489 };
1490
1491 /**
1492 * struct ieee80211_vht_cap - VHT capabilities
1493 *
1494 * This structure is the "VHT capabilities element" as
1495 * described in 802.11ac D3.0 8.4.2.160
1496 * @vht_cap_info: VHT capability info
1497 * @supp_mcs: VHT MCS supported rates
1498 */
1499 struct ieee80211_vht_cap {
1500 __le32 vht_cap_info;
1501 struct ieee80211_vht_mcs_info supp_mcs;
1502 } __packed;
1503
1504 /**
1505 * enum ieee80211_vht_chanwidth - VHT channel width
1506 * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1507 * determine the channel width (20 or 40 MHz)
1508 * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1509 * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1510 * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1511 */
1512 enum ieee80211_vht_chanwidth {
1513 IEEE80211_VHT_CHANWIDTH_USE_HT = 0,
1514 IEEE80211_VHT_CHANWIDTH_80MHZ = 1,
1515 IEEE80211_VHT_CHANWIDTH_160MHZ = 2,
1516 IEEE80211_VHT_CHANWIDTH_80P80MHZ = 3,
1517 };
1518
1519 /**
1520 * struct ieee80211_vht_operation - VHT operation IE
1521 *
1522 * This structure is the "VHT operation element" as
1523 * described in 802.11ac D3.0 8.4.2.161
1524 * @chan_width: Operating channel width
1525 * @center_freq_seg1_idx: center freq segment 1 index
1526 * @center_freq_seg2_idx: center freq segment 2 index
1527 * @basic_mcs_set: VHT Basic MCS rate set
1528 */
1529 struct ieee80211_vht_operation {
1530 u8 chan_width;
1531 u8 center_freq_seg1_idx;
1532 u8 center_freq_seg2_idx;
1533 __le16 basic_mcs_set;
1534 } __packed;
1535
1536
1537 /* 802.11ac VHT Capabilities */
1538 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000
1539 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
1540 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002
1541 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK 0x00000003
1542 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004
1543 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008
1544 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK 0x0000000C
1545 #define IEEE80211_VHT_CAP_RXLDPC 0x00000010
1546 #define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020
1547 #define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040
1548 #define IEEE80211_VHT_CAP_TXSTBC 0x00000080
1549 #define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100
1550 #define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200
1551 #define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300
1552 #define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400
1553 #define IEEE80211_VHT_CAP_RXSTBC_MASK 0x00000700
1554 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800
1555 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000
1556 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT 13
1557 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK \
1558 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1559 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT 16
1560 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK \
1561 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1562 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000
1563 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000
1564 #define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000
1565 #define IEEE80211_VHT_CAP_HTC_VHT 0x00400000
1566 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT 23
1567 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
1568 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1569 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000
1570 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000
1571 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000
1572 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000
1573
1574 /* Authentication algorithms */
1575 #define WLAN_AUTH_OPEN 0
1576 #define WLAN_AUTH_SHARED_KEY 1
1577 #define WLAN_AUTH_FT 2
1578 #define WLAN_AUTH_SAE 3
1579 #define WLAN_AUTH_FILS_SK 4
1580 #define WLAN_AUTH_FILS_SK_PFS 5
1581 #define WLAN_AUTH_FILS_PK 6
1582 #define WLAN_AUTH_LEAP 128
1583
1584 #define WLAN_AUTH_CHALLENGE_LEN 128
1585
1586 #define WLAN_CAPABILITY_ESS (1<<0)
1587 #define WLAN_CAPABILITY_IBSS (1<<1)
1588
1589 /*
1590 * A mesh STA sets the ESS and IBSS capability bits to zero.
1591 * however, this holds true for p2p probe responses (in the p2p_find
1592 * phase) as well.
1593 */
1594 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1595 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1596
1597 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
1598 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1599 #define WLAN_CAPABILITY_PRIVACY (1<<4)
1600 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1601 #define WLAN_CAPABILITY_PBCC (1<<6)
1602 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1603
1604 /* 802.11h */
1605 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1606 #define WLAN_CAPABILITY_QOS (1<<9)
1607 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1608 #define WLAN_CAPABILITY_APSD (1<<11)
1609 #define WLAN_CAPABILITY_RADIO_MEASURE (1<<12)
1610 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
1611 #define WLAN_CAPABILITY_DEL_BACK (1<<14)
1612 #define WLAN_CAPABILITY_IMM_BACK (1<<15)
1613
1614 /* DMG (60gHz) 802.11ad */
1615 /* type - bits 0..1 */
1616 #define WLAN_CAPABILITY_DMG_TYPE_MASK (3<<0)
1617 #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */
1618 #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */
1619 #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */
1620
1621 #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2)
1622 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3)
1623 #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4)
1624 #define WLAN_CAPABILITY_DMG_ECPAC (1<<5)
1625
1626 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT (1<<8)
1627 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE (1<<12)
1628
1629 /* measurement */
1630 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1631 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1632 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1633
1634 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1635 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1636 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1637
1638 /* 802.11g ERP information element */
1639 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1640 #define WLAN_ERP_USE_PROTECTION (1<<1)
1641 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1642
1643 /* WLAN_ERP_BARKER_PREAMBLE values */
1644 enum {
1645 WLAN_ERP_PREAMBLE_SHORT = 0,
1646 WLAN_ERP_PREAMBLE_LONG = 1,
1647 };
1648
1649 /* Band ID, 802.11ad #8.4.1.45 */
1650 enum {
1651 IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1652 IEEE80211_BANDID_SUB1 = 1, /* Sub-1 GHz (excluding TV white spaces) */
1653 IEEE80211_BANDID_2G = 2, /* 2.4 GHz */
1654 IEEE80211_BANDID_3G = 3, /* 3.6 GHz */
1655 IEEE80211_BANDID_5G = 4, /* 4.9 and 5 GHz */
1656 IEEE80211_BANDID_60G = 5, /* 60 GHz */
1657 };
1658
1659 /* Status codes */
1660 enum ieee80211_statuscode {
1661 WLAN_STATUS_SUCCESS = 0,
1662 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1663 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1664 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1665 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1666 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1667 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1668 WLAN_STATUS_CHALLENGE_FAIL = 15,
1669 WLAN_STATUS_AUTH_TIMEOUT = 16,
1670 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1671 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1672 /* 802.11b */
1673 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1674 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1675 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1676 /* 802.11h */
1677 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1678 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1679 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1680 /* 802.11g */
1681 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1682 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1683 /* 802.11w */
1684 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1685 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1686 /* 802.11i */
1687 WLAN_STATUS_INVALID_IE = 40,
1688 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1689 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1690 WLAN_STATUS_INVALID_AKMP = 43,
1691 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1692 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1693 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1694 /* 802.11e */
1695 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1696 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1697 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1698 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1699 WLAN_STATUS_REQUEST_DECLINED = 37,
1700 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1701 WLAN_STATUS_CHANGE_TSPEC = 39,
1702 WLAN_STATUS_WAIT_TS_DELAY = 47,
1703 WLAN_STATUS_NO_DIRECT_LINK = 48,
1704 WLAN_STATUS_STA_NOT_PRESENT = 49,
1705 WLAN_STATUS_STA_NOT_QSTA = 50,
1706 /* 802.11s */
1707 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1708 WLAN_STATUS_FCG_NOT_SUPP = 78,
1709 WLAN_STATUS_STA_NO_TBTT = 78,
1710 /* 802.11ad */
1711 WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1712 WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1713 WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1714 WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1715 WLAN_STATUS_PERFORMING_FST_NOW = 87,
1716 WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1717 WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1718 WLAN_STATUS_REJECT_DSE_BAND = 96,
1719 WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1720 WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1721 };
1722
1723
1724 /* Reason codes */
1725 enum ieee80211_reasoncode {
1726 WLAN_REASON_UNSPECIFIED = 1,
1727 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1728 WLAN_REASON_DEAUTH_LEAVING = 3,
1729 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1730 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1731 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1732 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1733 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1734 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1735 /* 802.11h */
1736 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1737 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1738 /* 802.11i */
1739 WLAN_REASON_INVALID_IE = 13,
1740 WLAN_REASON_MIC_FAILURE = 14,
1741 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1742 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1743 WLAN_REASON_IE_DIFFERENT = 17,
1744 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1745 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1746 WLAN_REASON_INVALID_AKMP = 20,
1747 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1748 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1749 WLAN_REASON_IEEE8021X_FAILED = 23,
1750 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1751 /* TDLS (802.11z) */
1752 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1753 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1754 /* 802.11e */
1755 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1756 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1757 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1758 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1759 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1760 WLAN_REASON_QSTA_NOT_USE = 37,
1761 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1762 WLAN_REASON_QSTA_TIMEOUT = 39,
1763 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1764 /* 802.11s */
1765 WLAN_REASON_MESH_PEER_CANCELED = 52,
1766 WLAN_REASON_MESH_MAX_PEERS = 53,
1767 WLAN_REASON_MESH_CONFIG = 54,
1768 WLAN_REASON_MESH_CLOSE = 55,
1769 WLAN_REASON_MESH_MAX_RETRIES = 56,
1770 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1771 WLAN_REASON_MESH_INVALID_GTK = 58,
1772 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1773 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1774 WLAN_REASON_MESH_PATH_ERROR = 61,
1775 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1776 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1777 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1778 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1779 WLAN_REASON_MESH_CHAN = 66,
1780 };
1781
1782
1783 /* Information Element IDs */
1784 enum ieee80211_eid {
1785 WLAN_EID_SSID = 0,
1786 WLAN_EID_SUPP_RATES = 1,
1787 WLAN_EID_FH_PARAMS = 2, /* reserved now */
1788 WLAN_EID_DS_PARAMS = 3,
1789 WLAN_EID_CF_PARAMS = 4,
1790 WLAN_EID_TIM = 5,
1791 WLAN_EID_IBSS_PARAMS = 6,
1792 WLAN_EID_COUNTRY = 7,
1793 /* 8, 9 reserved */
1794 WLAN_EID_REQUEST = 10,
1795 WLAN_EID_QBSS_LOAD = 11,
1796 WLAN_EID_EDCA_PARAM_SET = 12,
1797 WLAN_EID_TSPEC = 13,
1798 WLAN_EID_TCLAS = 14,
1799 WLAN_EID_SCHEDULE = 15,
1800 WLAN_EID_CHALLENGE = 16,
1801 /* 17-31 reserved for challenge text extension */
1802 WLAN_EID_PWR_CONSTRAINT = 32,
1803 WLAN_EID_PWR_CAPABILITY = 33,
1804 WLAN_EID_TPC_REQUEST = 34,
1805 WLAN_EID_TPC_REPORT = 35,
1806 WLAN_EID_SUPPORTED_CHANNELS = 36,
1807 WLAN_EID_CHANNEL_SWITCH = 37,
1808 WLAN_EID_MEASURE_REQUEST = 38,
1809 WLAN_EID_MEASURE_REPORT = 39,
1810 WLAN_EID_QUIET = 40,
1811 WLAN_EID_IBSS_DFS = 41,
1812 WLAN_EID_ERP_INFO = 42,
1813 WLAN_EID_TS_DELAY = 43,
1814 WLAN_EID_TCLAS_PROCESSING = 44,
1815 WLAN_EID_HT_CAPABILITY = 45,
1816 WLAN_EID_QOS_CAPA = 46,
1817 /* 47 reserved for Broadcom */
1818 WLAN_EID_RSN = 48,
1819 WLAN_EID_802_15_COEX = 49,
1820 WLAN_EID_EXT_SUPP_RATES = 50,
1821 WLAN_EID_AP_CHAN_REPORT = 51,
1822 WLAN_EID_NEIGHBOR_REPORT = 52,
1823 WLAN_EID_RCPI = 53,
1824 WLAN_EID_MOBILITY_DOMAIN = 54,
1825 WLAN_EID_FAST_BSS_TRANSITION = 55,
1826 WLAN_EID_TIMEOUT_INTERVAL = 56,
1827 WLAN_EID_RIC_DATA = 57,
1828 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1829 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1830 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1831 WLAN_EID_HT_OPERATION = 61,
1832 WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1833 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1834 WLAN_EID_ANTENNA_INFO = 64,
1835 WLAN_EID_RSNI = 65,
1836 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1837 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1838 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1839 WLAN_EID_TIME_ADVERTISEMENT = 69,
1840 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1841 WLAN_EID_MULTIPLE_BSSID = 71,
1842 WLAN_EID_BSS_COEX_2040 = 72,
1843 WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1844 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1845 WLAN_EID_RIC_DESCRIPTOR = 75,
1846 WLAN_EID_MMIE = 76,
1847 WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1848 WLAN_EID_EVENT_REQUEST = 78,
1849 WLAN_EID_EVENT_REPORT = 79,
1850 WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1851 WLAN_EID_DIAGNOSTIC_REPORT = 81,
1852 WLAN_EID_LOCATION_PARAMS = 82,
1853 WLAN_EID_NON_TX_BSSID_CAP = 83,
1854 WLAN_EID_SSID_LIST = 84,
1855 WLAN_EID_MULTI_BSSID_IDX = 85,
1856 WLAN_EID_FMS_DESCRIPTOR = 86,
1857 WLAN_EID_FMS_REQUEST = 87,
1858 WLAN_EID_FMS_RESPONSE = 88,
1859 WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1860 WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1861 WLAN_EID_TSF_REQUEST = 91,
1862 WLAN_EID_TSF_RESPOSNE = 92,
1863 WLAN_EID_WNM_SLEEP_MODE = 93,
1864 WLAN_EID_TIM_BCAST_REQ = 94,
1865 WLAN_EID_TIM_BCAST_RESP = 95,
1866 WLAN_EID_COLL_IF_REPORT = 96,
1867 WLAN_EID_CHANNEL_USAGE = 97,
1868 WLAN_EID_TIME_ZONE = 98,
1869 WLAN_EID_DMS_REQUEST = 99,
1870 WLAN_EID_DMS_RESPONSE = 100,
1871 WLAN_EID_LINK_ID = 101,
1872 WLAN_EID_WAKEUP_SCHEDUL = 102,
1873 /* 103 reserved */
1874 WLAN_EID_CHAN_SWITCH_TIMING = 104,
1875 WLAN_EID_PTI_CONTROL = 105,
1876 WLAN_EID_PU_BUFFER_STATUS = 106,
1877 WLAN_EID_INTERWORKING = 107,
1878 WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1879 WLAN_EID_EXPEDITED_BW_REQ = 109,
1880 WLAN_EID_QOS_MAP_SET = 110,
1881 WLAN_EID_ROAMING_CONSORTIUM = 111,
1882 WLAN_EID_EMERGENCY_ALERT = 112,
1883 WLAN_EID_MESH_CONFIG = 113,
1884 WLAN_EID_MESH_ID = 114,
1885 WLAN_EID_LINK_METRIC_REPORT = 115,
1886 WLAN_EID_CONGESTION_NOTIFICATION = 116,
1887 WLAN_EID_PEER_MGMT = 117,
1888 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1889 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1890 WLAN_EID_BEACON_TIMING = 120,
1891 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1892 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1893 WLAN_EID_MCCAOP_ADVERT = 123,
1894 WLAN_EID_MCCAOP_TEARDOWN = 124,
1895 WLAN_EID_GANN = 125,
1896 WLAN_EID_RANN = 126,
1897 WLAN_EID_EXT_CAPABILITY = 127,
1898 /* 128, 129 reserved for Agere */
1899 WLAN_EID_PREQ = 130,
1900 WLAN_EID_PREP = 131,
1901 WLAN_EID_PERR = 132,
1902 /* 133-136 reserved for Cisco */
1903 WLAN_EID_PXU = 137,
1904 WLAN_EID_PXUC = 138,
1905 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1906 WLAN_EID_MIC = 140,
1907 WLAN_EID_DESTINATION_URI = 141,
1908 WLAN_EID_UAPSD_COEX = 142,
1909 WLAN_EID_WAKEUP_SCHEDULE = 143,
1910 WLAN_EID_EXT_SCHEDULE = 144,
1911 WLAN_EID_STA_AVAILABILITY = 145,
1912 WLAN_EID_DMG_TSPEC = 146,
1913 WLAN_EID_DMG_AT = 147,
1914 WLAN_EID_DMG_CAP = 148,
1915 /* 149 reserved for Cisco */
1916 WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1917 WLAN_EID_DMG_OPERATION = 151,
1918 WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1919 WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1920 WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1921 /* 155-156 reserved for Cisco */
1922 WLAN_EID_AWAKE_WINDOW = 157,
1923 WLAN_EID_MULTI_BAND = 158,
1924 WLAN_EID_ADDBA_EXT = 159,
1925 WLAN_EID_NEXT_PCP_LIST = 160,
1926 WLAN_EID_PCP_HANDOVER = 161,
1927 WLAN_EID_DMG_LINK_MARGIN = 162,
1928 WLAN_EID_SWITCHING_STREAM = 163,
1929 WLAN_EID_SESSION_TRANSITION = 164,
1930 WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1931 WLAN_EID_CLUSTER_REPORT = 166,
1932 WLAN_EID_RELAY_CAP = 167,
1933 WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1934 WLAN_EID_BEAM_LINK_MAINT = 169,
1935 WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1936 WLAN_EID_U_PID = 171,
1937 WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1938 /* 173 reserved for Symbol */
1939 WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1940 WLAN_EID_QUIET_PERIOD_REQ = 175,
1941 /* 176 reserved for Symbol */
1942 WLAN_EID_QUIET_PERIOD_RESP = 177,
1943 /* 178-179 reserved for Symbol */
1944 /* 180 reserved for ISO/IEC 20011 */
1945 WLAN_EID_EPAC_POLICY = 182,
1946 WLAN_EID_CLISTER_TIME_OFF = 183,
1947 WLAN_EID_INTER_AC_PRIO = 184,
1948 WLAN_EID_SCS_DESCRIPTOR = 185,
1949 WLAN_EID_QLOAD_REPORT = 186,
1950 WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1951 WLAN_EID_HL_STREAM_ID = 188,
1952 WLAN_EID_GCR_GROUP_ADDR = 189,
1953 WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1954 WLAN_EID_VHT_CAPABILITY = 191,
1955 WLAN_EID_VHT_OPERATION = 192,
1956 WLAN_EID_EXTENDED_BSS_LOAD = 193,
1957 WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1958 WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1959 WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1960 WLAN_EID_AID = 197,
1961 WLAN_EID_QUIET_CHANNEL = 198,
1962 WLAN_EID_OPMODE_NOTIF = 199,
1963
1964 WLAN_EID_VENDOR_SPECIFIC = 221,
1965 WLAN_EID_QOS_PARAMETER = 222,
1966 WLAN_EID_CAG_NUMBER = 237,
1967 WLAN_EID_AP_CSN = 239,
1968 WLAN_EID_FILS_INDICATION = 240,
1969 WLAN_EID_DILS = 241,
1970 WLAN_EID_FRAGMENT = 242,
1971 WLAN_EID_EXTENSION = 255
1972 };
1973
1974 /* Element ID Extensions for Element ID 255 */
1975 enum ieee80211_eid_ext {
1976 WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
1977 WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
1978 WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
1979 WLAN_EID_EXT_FILS_SESSION = 4,
1980 WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
1981 WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
1982 WLAN_EID_EXT_KEY_DELIVERY = 7,
1983 WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
1984 WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
1985 WLAN_EID_EXT_FILS_NONCE = 13,
1986 };
1987
1988 /* Action category code */
1989 enum ieee80211_category {
1990 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1991 WLAN_CATEGORY_QOS = 1,
1992 WLAN_CATEGORY_DLS = 2,
1993 WLAN_CATEGORY_BACK = 3,
1994 WLAN_CATEGORY_PUBLIC = 4,
1995 WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1996 WLAN_CATEGORY_HT = 7,
1997 WLAN_CATEGORY_SA_QUERY = 8,
1998 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1999 WLAN_CATEGORY_WNM = 10,
2000 WLAN_CATEGORY_WNM_UNPROTECTED = 11,
2001 WLAN_CATEGORY_TDLS = 12,
2002 WLAN_CATEGORY_MESH_ACTION = 13,
2003 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
2004 WLAN_CATEGORY_SELF_PROTECTED = 15,
2005 WLAN_CATEGORY_DMG = 16,
2006 WLAN_CATEGORY_WMM = 17,
2007 WLAN_CATEGORY_FST = 18,
2008 WLAN_CATEGORY_UNPROT_DMG = 20,
2009 WLAN_CATEGORY_VHT = 21,
2010 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
2011 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
2012 };
2013
2014 /* SPECTRUM_MGMT action code */
2015 enum ieee80211_spectrum_mgmt_actioncode {
2016 WLAN_ACTION_SPCT_MSR_REQ = 0,
2017 WLAN_ACTION_SPCT_MSR_RPRT = 1,
2018 WLAN_ACTION_SPCT_TPC_REQ = 2,
2019 WLAN_ACTION_SPCT_TPC_RPRT = 3,
2020 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2021 };
2022
2023 /* HT action codes */
2024 enum ieee80211_ht_actioncode {
2025 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2026 WLAN_HT_ACTION_SMPS = 1,
2027 WLAN_HT_ACTION_PSMP = 2,
2028 WLAN_HT_ACTION_PCO_PHASE = 3,
2029 WLAN_HT_ACTION_CSI = 4,
2030 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2031 WLAN_HT_ACTION_COMPRESSED_BF = 6,
2032 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2033 };
2034
2035 /* VHT action codes */
2036 enum ieee80211_vht_actioncode {
2037 WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2038 WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2039 WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2040 };
2041
2042 /* Self Protected Action codes */
2043 enum ieee80211_self_protected_actioncode {
2044 WLAN_SP_RESERVED = 0,
2045 WLAN_SP_MESH_PEERING_OPEN = 1,
2046 WLAN_SP_MESH_PEERING_CONFIRM = 2,
2047 WLAN_SP_MESH_PEERING_CLOSE = 3,
2048 WLAN_SP_MGK_INFORM = 4,
2049 WLAN_SP_MGK_ACK = 5,
2050 };
2051
2052 /* Mesh action codes */
2053 enum ieee80211_mesh_actioncode {
2054 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2055 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2056 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2057 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2058 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2059 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2060 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2061 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2062 WLAN_MESH_ACTION_MCCA_TEARDOWN,
2063 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2064 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2065 };
2066
2067 /* Security key length */
2068 enum ieee80211_key_len {
2069 WLAN_KEY_LEN_WEP40 = 5,
2070 WLAN_KEY_LEN_WEP104 = 13,
2071 WLAN_KEY_LEN_CCMP = 16,
2072 WLAN_KEY_LEN_CCMP_256 = 32,
2073 WLAN_KEY_LEN_TKIP = 32,
2074 WLAN_KEY_LEN_AES_CMAC = 16,
2075 WLAN_KEY_LEN_SMS4 = 32,
2076 WLAN_KEY_LEN_GCMP = 16,
2077 WLAN_KEY_LEN_GCMP_256 = 32,
2078 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2079 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2080 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2081 };
2082
2083 #define IEEE80211_WEP_IV_LEN 4
2084 #define IEEE80211_WEP_ICV_LEN 4
2085 #define IEEE80211_CCMP_HDR_LEN 8
2086 #define IEEE80211_CCMP_MIC_LEN 8
2087 #define IEEE80211_CCMP_PN_LEN 6
2088 #define IEEE80211_CCMP_256_HDR_LEN 8
2089 #define IEEE80211_CCMP_256_MIC_LEN 16
2090 #define IEEE80211_CCMP_256_PN_LEN 6
2091 #define IEEE80211_TKIP_IV_LEN 8
2092 #define IEEE80211_TKIP_ICV_LEN 4
2093 #define IEEE80211_CMAC_PN_LEN 6
2094 #define IEEE80211_GMAC_PN_LEN 6
2095 #define IEEE80211_GCMP_HDR_LEN 8
2096 #define IEEE80211_GCMP_MIC_LEN 16
2097 #define IEEE80211_GCMP_PN_LEN 6
2098
2099 #define FILS_NONCE_LEN 16
2100 #define FILS_MAX_KEK_LEN 64
2101
2102 /* Public action codes */
2103 enum ieee80211_pub_actioncode {
2104 WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2105 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2106 };
2107
2108 /* TDLS action codes */
2109 enum ieee80211_tdls_actioncode {
2110 WLAN_TDLS_SETUP_REQUEST = 0,
2111 WLAN_TDLS_SETUP_RESPONSE = 1,
2112 WLAN_TDLS_SETUP_CONFIRM = 2,
2113 WLAN_TDLS_TEARDOWN = 3,
2114 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2115 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2116 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2117 WLAN_TDLS_PEER_PSM_REQUEST = 7,
2118 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2119 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2120 WLAN_TDLS_DISCOVERY_REQUEST = 10,
2121 };
2122
2123 /* Extended Channel Switching capability to be set in the 1st byte of
2124 * the @WLAN_EID_EXT_CAPABILITY information element
2125 */
2126 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2)
2127
2128 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2129 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA BIT(4)
2130 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM BIT(5)
2131 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH BIT(6)
2132
2133 /* Interworking capabilities are set in 7th bit of 4th byte of the
2134 * @WLAN_EID_EXT_CAPABILITY information element
2135 */
2136 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED BIT(7)
2137
2138 /*
2139 * TDLS capabililites to be enabled in the 5th byte of the
2140 * @WLAN_EID_EXT_CAPABILITY information element
2141 */
2142 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
2143 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
2144 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED BIT(7)
2145
2146 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED BIT(5)
2147 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(6)
2148
2149 /* Defines the maximal number of MSDUs in an A-MSDU. */
2150 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(7)
2151 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(0)
2152
2153 /*
2154 * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2155 * information element
2156 */
2157 #define WLAN_EXT_CAPA9_FTM_INITIATOR BIT(7)
2158
2159 /* TDLS specific payload type in the LLC/SNAP header */
2160 #define WLAN_TDLS_SNAP_RFTYPE 0x2
2161
2162 /* BSS Coex IE information field bits */
2163 #define WLAN_BSS_COEX_INFORMATION_REQUEST BIT(0)
2164
2165 /**
2166 * enum - mesh synchronization method identifier
2167 *
2168 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2169 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2170 * that will be specified in a vendor specific information element
2171 */
2172 enum {
2173 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2174 IEEE80211_SYNC_METHOD_VENDOR = 255,
2175 };
2176
2177 /**
2178 * enum - mesh path selection protocol identifier
2179 *
2180 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2181 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2182 * be specified in a vendor specific information element
2183 */
2184 enum {
2185 IEEE80211_PATH_PROTOCOL_HWMP = 1,
2186 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2187 };
2188
2189 /**
2190 * enum - mesh path selection metric identifier
2191 *
2192 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2193 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2194 * specified in a vendor specific information element
2195 */
2196 enum {
2197 IEEE80211_PATH_METRIC_AIRTIME = 1,
2198 IEEE80211_PATH_METRIC_VENDOR = 255,
2199 };
2200
2201 /**
2202 * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2203 *
2204 * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2205 *
2206 * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2207 * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2208 * this value
2209 * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2210 * the proactive PREQ with proactive PREP subfield set to 0
2211 * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2212 * supports the proactive PREQ with proactive PREP subfield set to 1
2213 * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2214 * the proactive RANN
2215 */
2216 enum ieee80211_root_mode_identifier {
2217 IEEE80211_ROOTMODE_NO_ROOT = 0,
2218 IEEE80211_ROOTMODE_ROOT = 1,
2219 IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2220 IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2221 IEEE80211_PROACTIVE_RANN = 4,
2222 };
2223
2224 /*
2225 * IEEE 802.11-2007 7.3.2.9 Country information element
2226 *
2227 * Minimum length is 8 octets, ie len must be evenly
2228 * divisible by 2
2229 */
2230
2231 /* Although the spec says 8 I'm seeing 6 in practice */
2232 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
2233
2234 /* The Country String field of the element shall be 3 octets in length */
2235 #define IEEE80211_COUNTRY_STRING_LEN 3
2236
2237 /*
2238 * For regulatory extension stuff see IEEE 802.11-2007
2239 * Annex I (page 1141) and Annex J (page 1147). Also
2240 * review 7.3.2.9.
2241 *
2242 * When dot11RegulatoryClassesRequired is true and the
2243 * first_channel/reg_extension_id is >= 201 then the IE
2244 * compromises of the 'ext' struct represented below:
2245 *
2246 * - Regulatory extension ID - when generating IE this just needs
2247 * to be monotonically increasing for each triplet passed in
2248 * the IE
2249 * - Regulatory class - index into set of rules
2250 * - Coverage class - index into air propagation time (Table 7-27),
2251 * in microseconds, you can compute the air propagation time from
2252 * the index by multiplying by 3, so index 10 yields a propagation
2253 * of 10 us. Valid values are 0-31, values 32-255 are not defined
2254 * yet. A value of 0 inicates air propagation of <= 1 us.
2255 *
2256 * See also Table I.2 for Emission limit sets and table
2257 * I.3 for Behavior limit sets. Table J.1 indicates how to map
2258 * a reg_class to an emission limit set and behavior limit set.
2259 */
2260 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2261
2262 /*
2263 * Channels numbers in the IE must be monotonically increasing
2264 * if dot11RegulatoryClassesRequired is not true.
2265 *
2266 * If dot11RegulatoryClassesRequired is true consecutive
2267 * subband triplets following a regulatory triplet shall
2268 * have monotonically increasing first_channel number fields.
2269 *
2270 * Channel numbers shall not overlap.
2271 *
2272 * Note that max_power is signed.
2273 */
2274 struct ieee80211_country_ie_triplet {
2275 union {
2276 struct {
2277 u8 first_channel;
2278 u8 num_channels;
2279 s8 max_power;
2280 } __packed chans;
2281 struct {
2282 u8 reg_extension_id;
2283 u8 reg_class;
2284 u8 coverage_class;
2285 } __packed ext;
2286 };
2287 } __packed;
2288
2289 enum ieee80211_timeout_interval_type {
2290 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2291 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2292 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2293 };
2294
2295 /**
2296 * struct ieee80211_timeout_interval_ie - Timeout Interval element
2297 * @type: type, see &enum ieee80211_timeout_interval_type
2298 * @value: timeout interval value
2299 */
2300 struct ieee80211_timeout_interval_ie {
2301 u8 type;
2302 __le32 value;
2303 } __packed;
2304
2305 /* BACK action code */
2306 enum ieee80211_back_actioncode {
2307 WLAN_ACTION_ADDBA_REQ = 0,
2308 WLAN_ACTION_ADDBA_RESP = 1,
2309 WLAN_ACTION_DELBA = 2,
2310 };
2311
2312 /* BACK (block-ack) parties */
2313 enum ieee80211_back_parties {
2314 WLAN_BACK_RECIPIENT = 0,
2315 WLAN_BACK_INITIATOR = 1,
2316 };
2317
2318 /* SA Query action */
2319 enum ieee80211_sa_query_action {
2320 WLAN_ACTION_SA_QUERY_REQUEST = 0,
2321 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2322 };
2323
2324
2325 /* cipher suite selectors */
2326 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
2327 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
2328 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
2329 /* reserved: 0x000FAC03 */
2330 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
2331 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
2332 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
2333 #define WLAN_CIPHER_SUITE_GCMP 0x000FAC08
2334 #define WLAN_CIPHER_SUITE_GCMP_256 0x000FAC09
2335 #define WLAN_CIPHER_SUITE_CCMP_256 0x000FAC0A
2336 #define WLAN_CIPHER_SUITE_BIP_GMAC_128 0x000FAC0B
2337 #define WLAN_CIPHER_SUITE_BIP_GMAC_256 0x000FAC0C
2338 #define WLAN_CIPHER_SUITE_BIP_CMAC_256 0x000FAC0D
2339
2340 #define WLAN_CIPHER_SUITE_SMS4 0x00147201
2341
2342 /* AKM suite selectors */
2343 #define WLAN_AKM_SUITE_8021X 0x000FAC01
2344 #define WLAN_AKM_SUITE_PSK 0x000FAC02
2345 #define WLAN_AKM_SUITE_8021X_SHA256 0x000FAC05
2346 #define WLAN_AKM_SUITE_PSK_SHA256 0x000FAC06
2347 #define WLAN_AKM_SUITE_TDLS 0x000FAC07
2348 #define WLAN_AKM_SUITE_SAE 0x000FAC08
2349 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
2350
2351 #define WLAN_MAX_KEY_LEN 32
2352
2353 #define WLAN_PMKID_LEN 16
2354
2355 #define WLAN_OUI_WFA 0x506f9a
2356 #define WLAN_OUI_TYPE_WFA_P2P 9
2357 #define WLAN_OUI_MICROSOFT 0x0050f2
2358 #define WLAN_OUI_TYPE_MICROSOFT_WPA 1
2359 #define WLAN_OUI_TYPE_MICROSOFT_WMM 2
2360 #define WLAN_OUI_TYPE_MICROSOFT_WPS 4
2361
2362 /*
2363 * WMM/802.11e Tspec Element
2364 */
2365 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
2366 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
2367
2368 enum ieee80211_tspec_status_code {
2369 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2370 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2371 };
2372
2373 struct ieee80211_tspec_ie {
2374 u8 element_id;
2375 u8 len;
2376 u8 oui[3];
2377 u8 oui_type;
2378 u8 oui_subtype;
2379 u8 version;
2380 __le16 tsinfo;
2381 u8 tsinfo_resvd;
2382 __le16 nominal_msdu;
2383 __le16 max_msdu;
2384 __le32 min_service_int;
2385 __le32 max_service_int;
2386 __le32 inactivity_int;
2387 __le32 suspension_int;
2388 __le32 service_start_time;
2389 __le32 min_data_rate;
2390 __le32 mean_data_rate;
2391 __le32 peak_data_rate;
2392 __le32 max_burst_size;
2393 __le32 delay_bound;
2394 __le32 min_phy_rate;
2395 __le16 sba;
2396 __le16 medium_time;
2397 } __packed;
2398
2399 /**
2400 * ieee80211_get_qos_ctl - get pointer to qos control bytes
2401 * @hdr: the frame
2402 *
2403 * The qos ctrl bytes come after the frame_control, duration, seq_num
2404 * and 3 or 4 addresses of length ETH_ALEN.
2405 * 3 addr: 2 + 2 + 2 + 3*6 = 24
2406 * 4 addr: 2 + 2 + 2 + 4*6 = 30
2407 */
2408 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2409 {
2410 if (ieee80211_has_a4(hdr->frame_control))
2411 return (u8 *)hdr + 30;
2412 else
2413 return (u8 *)hdr + 24;
2414 }
2415
2416 /**
2417 * ieee80211_get_SA - get pointer to SA
2418 * @hdr: the frame
2419 *
2420 * Given an 802.11 frame, this function returns the offset
2421 * to the source address (SA). It does not verify that the
2422 * header is long enough to contain the address, and the
2423 * header must be long enough to contain the frame control
2424 * field.
2425 */
2426 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2427 {
2428 if (ieee80211_has_a4(hdr->frame_control))
2429 return hdr->addr4;
2430 if (ieee80211_has_fromds(hdr->frame_control))
2431 return hdr->addr3;
2432 return hdr->addr2;
2433 }
2434
2435 /**
2436 * ieee80211_get_DA - get pointer to DA
2437 * @hdr: the frame
2438 *
2439 * Given an 802.11 frame, this function returns the offset
2440 * to the destination address (DA). It does not verify that
2441 * the header is long enough to contain the address, and the
2442 * header must be long enough to contain the frame control
2443 * field.
2444 */
2445 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2446 {
2447 if (ieee80211_has_tods(hdr->frame_control))
2448 return hdr->addr3;
2449 else
2450 return hdr->addr1;
2451 }
2452
2453 /**
2454 * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2455 * @hdr: the frame (buffer must include at least the first octet of payload)
2456 */
2457 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2458 {
2459 if (ieee80211_is_disassoc(hdr->frame_control) ||
2460 ieee80211_is_deauth(hdr->frame_control))
2461 return true;
2462
2463 if (ieee80211_is_action(hdr->frame_control)) {
2464 u8 *category;
2465
2466 /*
2467 * Action frames, excluding Public Action frames, are Robust
2468 * Management Frames. However, if we are looking at a Protected
2469 * frame, skip the check since the data may be encrypted and
2470 * the frame has already been found to be a Robust Management
2471 * Frame (by the other end).
2472 */
2473 if (ieee80211_has_protected(hdr->frame_control))
2474 return true;
2475 category = ((u8 *) hdr) + 24;
2476 return *category != WLAN_CATEGORY_PUBLIC &&
2477 *category != WLAN_CATEGORY_HT &&
2478 *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
2479 *category != WLAN_CATEGORY_SELF_PROTECTED &&
2480 *category != WLAN_CATEGORY_UNPROT_DMG &&
2481 *category != WLAN_CATEGORY_VHT &&
2482 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2483 }
2484
2485 return false;
2486 }
2487
2488 /**
2489 * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
2490 * @skb: the skb containing the frame, length will be checked
2491 */
2492 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
2493 {
2494 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
2495 return false;
2496 return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
2497 }
2498
2499 /**
2500 * ieee80211_is_public_action - check if frame is a public action frame
2501 * @hdr: the frame
2502 * @len: length of the frame
2503 */
2504 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2505 size_t len)
2506 {
2507 struct ieee80211_mgmt *mgmt = (void *)hdr;
2508
2509 if (len < IEEE80211_MIN_ACTION_SIZE)
2510 return false;
2511 if (!ieee80211_is_action(hdr->frame_control))
2512 return false;
2513 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2514 }
2515
2516 /**
2517 * _ieee80211_is_group_privacy_action - check if frame is a group addressed
2518 * privacy action frame
2519 * @hdr: the frame
2520 */
2521 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
2522 {
2523 struct ieee80211_mgmt *mgmt = (void *)hdr;
2524
2525 if (!ieee80211_is_action(hdr->frame_control) ||
2526 !is_multicast_ether_addr(hdr->addr1))
2527 return false;
2528
2529 return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
2530 mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
2531 }
2532
2533 /**
2534 * ieee80211_is_group_privacy_action - check if frame is a group addressed
2535 * privacy action frame
2536 * @skb: the skb containing the frame, length will be checked
2537 */
2538 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
2539 {
2540 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
2541 return false;
2542 return _ieee80211_is_group_privacy_action((void *)skb->data);
2543 }
2544
2545 /**
2546 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2547 * @tu: the TUs
2548 */
2549 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2550 {
2551 return 1024 * tu;
2552 }
2553
2554 /**
2555 * ieee80211_check_tim - check if AID bit is set in TIM
2556 * @tim: the TIM IE
2557 * @tim_len: length of the TIM IE
2558 * @aid: the AID to look for
2559 */
2560 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2561 u8 tim_len, u16 aid)
2562 {
2563 u8 mask;
2564 u8 index, indexn1, indexn2;
2565
2566 if (unlikely(!tim || tim_len < sizeof(*tim)))
2567 return false;
2568
2569 aid &= 0x3fff;
2570 index = aid / 8;
2571 mask = 1 << (aid & 7);
2572
2573 indexn1 = tim->bitmap_ctrl & 0xfe;
2574 indexn2 = tim_len + indexn1 - 4;
2575
2576 if (index < indexn1 || index > indexn2)
2577 return false;
2578
2579 index -= indexn1;
2580
2581 return !!(tim->virtual_map[index] & mask);
2582 }
2583
2584 /**
2585 * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
2586 * @skb: the skb containing the frame, length will not be checked
2587 * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
2588 *
2589 * This function assumes the frame is a data frame, and that the network header
2590 * is in the correct place.
2591 */
2592 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
2593 {
2594 if (!skb_is_nonlinear(skb) &&
2595 skb->len > (skb_network_offset(skb) + 2)) {
2596 /* Point to where the indication of TDLS should start */
2597 const u8 *tdls_data = skb_network_header(skb) - 2;
2598
2599 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
2600 tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
2601 tdls_data[3] == WLAN_CATEGORY_TDLS)
2602 return tdls_data[4];
2603 }
2604
2605 return -1;
2606 }
2607
2608 /* convert time units */
2609 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
2610 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
2611
2612 /**
2613 * ieee80211_action_contains_tpc - checks if the frame contains TPC element
2614 * @skb: the skb containing the frame, length will be checked
2615 *
2616 * This function checks if it's either TPC report action frame or Link
2617 * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
2618 * and 8.5.7.5 accordingly.
2619 */
2620 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
2621 {
2622 struct ieee80211_mgmt *mgmt = (void *)skb->data;
2623
2624 if (!ieee80211_is_action(mgmt->frame_control))
2625 return false;
2626
2627 if (skb->len < IEEE80211_MIN_ACTION_SIZE +
2628 sizeof(mgmt->u.action.u.tpc_report))
2629 return false;
2630
2631 /*
2632 * TPC report - check that:
2633 * category = 0 (Spectrum Management) or 5 (Radio Measurement)
2634 * spectrum management action = 3 (TPC/Link Measurement report)
2635 * TPC report EID = 35
2636 * TPC report element length = 2
2637 *
2638 * The spectrum management's tpc_report struct is used here both for
2639 * parsing tpc_report and radio measurement's link measurement report
2640 * frame, since the relevant part is identical in both frames.
2641 */
2642 if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
2643 mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
2644 return false;
2645
2646 /* both spectrum mgmt and link measurement have same action code */
2647 if (mgmt->u.action.u.tpc_report.action_code !=
2648 WLAN_ACTION_SPCT_TPC_RPRT)
2649 return false;
2650
2651 if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
2652 mgmt->u.action.u.tpc_report.tpc_elem_length !=
2653 sizeof(struct ieee80211_tpc_report_ie))
2654 return false;
2655
2656 return true;
2657 }
2658
2659 #endif /* LINUX_IEEE80211_H */
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