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