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 - 2017 Intel Deutschland GmbH
11 * Copyright (c) 2018 Intel Corporation
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 */
17
18 #ifndef LINUX_IEEE80211_H
19 #define LINUX_IEEE80211_H
20
21 #include <linux/types.h>
22 #include <linux/if_ether.h>
23 #include <linux/etherdevice.h>
24 #include <asm/byteorder.h>
25 #include <asm/unaligned.h>
26
27 /*
28 * DS bit usage
29 *
30 * TA = transmitter address
31 * RA = receiver address
32 * DA = destination address
33 * SA = source address
34 *
35 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use
36 * -----------------------------------------------------------------
37 * 0 0 DA SA BSSID - IBSS/DLS
38 * 0 1 DA BSSID SA - AP -> STA
39 * 1 0 BSSID SA DA - AP <- STA
40 * 1 1 RA TA DA SA unspecified (WDS)
41 */
42
43 #define FCS_LEN 4
44
45 #define IEEE80211_FCTL_VERS 0x0003
46 #define IEEE80211_FCTL_FTYPE 0x000c
47 #define IEEE80211_FCTL_STYPE 0x00f0
48 #define IEEE80211_FCTL_TODS 0x0100
49 #define IEEE80211_FCTL_FROMDS 0x0200
50 #define IEEE80211_FCTL_MOREFRAGS 0x0400
51 #define IEEE80211_FCTL_RETRY 0x0800
52 #define IEEE80211_FCTL_PM 0x1000
53 #define IEEE80211_FCTL_MOREDATA 0x2000
54 #define IEEE80211_FCTL_PROTECTED 0x4000
55 #define IEEE80211_FCTL_ORDER 0x8000
56 #define IEEE80211_FCTL_CTL_EXT 0x0f00
57
58 #define IEEE80211_SCTL_FRAG 0x000F
59 #define IEEE80211_SCTL_SEQ 0xFFF0
60
61 #define IEEE80211_FTYPE_MGMT 0x0000
62 #define IEEE80211_FTYPE_CTL 0x0004
63 #define IEEE80211_FTYPE_DATA 0x0008
64 #define IEEE80211_FTYPE_EXT 0x000c
65
66 /* management */
67 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
68 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
69 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
70 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
71 #define IEEE80211_STYPE_PROBE_REQ 0x0040
72 #define IEEE80211_STYPE_PROBE_RESP 0x0050
73 #define IEEE80211_STYPE_BEACON 0x0080
74 #define IEEE80211_STYPE_ATIM 0x0090
75 #define IEEE80211_STYPE_DISASSOC 0x00A0
76 #define IEEE80211_STYPE_AUTH 0x00B0
77 #define IEEE80211_STYPE_DEAUTH 0x00C0
78 #define IEEE80211_STYPE_ACTION 0x00D0
79
80 /* control */
81 #define IEEE80211_STYPE_CTL_EXT 0x0060
82 #define IEEE80211_STYPE_BACK_REQ 0x0080
83 #define IEEE80211_STYPE_BACK 0x0090
84 #define IEEE80211_STYPE_PSPOLL 0x00A0
85 #define IEEE80211_STYPE_RTS 0x00B0
86 #define IEEE80211_STYPE_CTS 0x00C0
87 #define IEEE80211_STYPE_ACK 0x00D0
88 #define IEEE80211_STYPE_CFEND 0x00E0
89 #define IEEE80211_STYPE_CFENDACK 0x00F0
90
91 /* data */
92 #define IEEE80211_STYPE_DATA 0x0000
93 #define IEEE80211_STYPE_DATA_CFACK 0x0010
94 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
95 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
96 #define IEEE80211_STYPE_NULLFUNC 0x0040
97 #define IEEE80211_STYPE_CFACK 0x0050
98 #define IEEE80211_STYPE_CFPOLL 0x0060
99 #define IEEE80211_STYPE_CFACKPOLL 0x0070
100 #define IEEE80211_STYPE_QOS_DATA 0x0080
101 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
102 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
103 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
104 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
105 #define IEEE80211_STYPE_QOS_CFACK 0x00D0
106 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
107 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
108
109 /* extension, added by 802.11ad */
110 #define IEEE80211_STYPE_DMG_BEACON 0x0000
111
112 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
113 #define IEEE80211_CTL_EXT_POLL 0x2000
114 #define IEEE80211_CTL_EXT_SPR 0x3000
115 #define IEEE80211_CTL_EXT_GRANT 0x4000
116 #define IEEE80211_CTL_EXT_DMG_CTS 0x5000
117 #define IEEE80211_CTL_EXT_DMG_DTS 0x6000
118 #define IEEE80211_CTL_EXT_SSW 0x8000
119 #define IEEE80211_CTL_EXT_SSW_FBACK 0x9000
120 #define IEEE80211_CTL_EXT_SSW_ACK 0xa000
121
122
123 #define IEEE80211_SN_MASK ((IEEE80211_SCTL_SEQ) >> 4)
124 #define IEEE80211_MAX_SN IEEE80211_SN_MASK
125 #define IEEE80211_SN_MODULO (IEEE80211_MAX_SN + 1)
126
ieee80211_sn_less(u16 sn1,u16 sn2)127 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
128 {
129 return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
130 }
131
ieee80211_sn_add(u16 sn1,u16 sn2)132 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
133 {
134 return (sn1 + sn2) & IEEE80211_SN_MASK;
135 }
136
ieee80211_sn_inc(u16 sn)137 static inline u16 ieee80211_sn_inc(u16 sn)
138 {
139 return ieee80211_sn_add(sn, 1);
140 }
141
ieee80211_sn_sub(u16 sn1,u16 sn2)142 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
143 {
144 return (sn1 - sn2) & IEEE80211_SN_MASK;
145 }
146
147 #define IEEE80211_SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
148 #define IEEE80211_SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
149
150 /* miscellaneous IEEE 802.11 constants */
151 #define IEEE80211_MAX_FRAG_THRESHOLD 2352
152 #define IEEE80211_MAX_RTS_THRESHOLD 2353
153 #define IEEE80211_MAX_AID 2007
154 #define IEEE80211_MAX_TIM_LEN 251
155 #define IEEE80211_MAX_MESH_PEERINGS 63
156 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
157 6.2.1.1.2.
158
159 802.11e clarifies the figure in section 7.1.2. The frame body is
160 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
161 #define IEEE80211_MAX_DATA_LEN 2304
162 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
163 * to 7920 bytes, see 8.2.3 General frame format
164 */
165 #define IEEE80211_MAX_DATA_LEN_DMG 7920
166 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
167 #define IEEE80211_MAX_FRAME_LEN 2352
168
169 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
170 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095
171
172 /* Maximal size of an A-MSDU */
173 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
174 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935
175
176 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
177 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
178 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
179
180 #define IEEE80211_MAX_SSID_LEN 32
181
182 #define IEEE80211_MAX_MESH_ID_LEN 32
183
184 #define IEEE80211_FIRST_TSPEC_TSID 8
185 #define IEEE80211_NUM_TIDS 16
186
187 /* number of user priorities 802.11 uses */
188 #define IEEE80211_NUM_UPS 8
189 /* number of ACs */
190 #define IEEE80211_NUM_ACS 4
191
192 #define IEEE80211_QOS_CTL_LEN 2
193 /* 1d tag mask */
194 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
195 /* TID mask */
196 #define IEEE80211_QOS_CTL_TID_MASK 0x000f
197 /* EOSP */
198 #define IEEE80211_QOS_CTL_EOSP 0x0010
199 /* ACK policy */
200 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000
201 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
202 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040
203 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060
204 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
205 /* A-MSDU 802.11n */
206 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
207 /* Mesh Control 802.11s */
208 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
209
210 /* Mesh Power Save Level */
211 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL 0x0200
212 /* Mesh Receiver Service Period Initiated */
213 #define IEEE80211_QOS_CTL_RSPI 0x0400
214
215 /* U-APSD queue for WMM IEs sent by AP */
216 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
217 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
218
219 /* U-APSD queues for WMM IEs sent by STA */
220 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
221 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
222 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
223 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
224 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
225
226 /* U-APSD max SP length for WMM IEs sent by STA */
227 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
228 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
229 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
230 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
231 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
232 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
233
234 #define IEEE80211_HT_CTL_LEN 4
235
236 struct ieee80211_hdr {
237 __le16 frame_control;
238 __le16 duration_id;
239 u8 addr1[ETH_ALEN];
240 u8 addr2[ETH_ALEN];
241 u8 addr3[ETH_ALEN];
242 __le16 seq_ctrl;
243 u8 addr4[ETH_ALEN];
244 } __packed __aligned(2);
245
246 struct ieee80211_hdr_3addr {
247 __le16 frame_control;
248 __le16 duration_id;
249 u8 addr1[ETH_ALEN];
250 u8 addr2[ETH_ALEN];
251 u8 addr3[ETH_ALEN];
252 __le16 seq_ctrl;
253 } __packed __aligned(2);
254
255 struct ieee80211_qos_hdr {
256 __le16 frame_control;
257 __le16 duration_id;
258 u8 addr1[ETH_ALEN];
259 u8 addr2[ETH_ALEN];
260 u8 addr3[ETH_ALEN];
261 __le16 seq_ctrl;
262 __le16 qos_ctrl;
263 } __packed __aligned(2);
264
265 /**
266 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
267 * @fc: frame control bytes in little-endian byteorder
268 */
ieee80211_has_tods(__le16 fc)269 static inline bool ieee80211_has_tods(__le16 fc)
270 {
271 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
272 }
273
274 /**
275 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
276 * @fc: frame control bytes in little-endian byteorder
277 */
ieee80211_has_fromds(__le16 fc)278 static inline bool ieee80211_has_fromds(__le16 fc)
279 {
280 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
281 }
282
283 /**
284 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
285 * @fc: frame control bytes in little-endian byteorder
286 */
ieee80211_has_a4(__le16 fc)287 static inline bool ieee80211_has_a4(__le16 fc)
288 {
289 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
290 return (fc & tmp) == tmp;
291 }
292
293 /**
294 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
295 * @fc: frame control bytes in little-endian byteorder
296 */
ieee80211_has_morefrags(__le16 fc)297 static inline bool ieee80211_has_morefrags(__le16 fc)
298 {
299 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
300 }
301
302 /**
303 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
304 * @fc: frame control bytes in little-endian byteorder
305 */
ieee80211_has_retry(__le16 fc)306 static inline bool ieee80211_has_retry(__le16 fc)
307 {
308 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
309 }
310
311 /**
312 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
313 * @fc: frame control bytes in little-endian byteorder
314 */
ieee80211_has_pm(__le16 fc)315 static inline bool ieee80211_has_pm(__le16 fc)
316 {
317 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
318 }
319
320 /**
321 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
322 * @fc: frame control bytes in little-endian byteorder
323 */
ieee80211_has_moredata(__le16 fc)324 static inline bool ieee80211_has_moredata(__le16 fc)
325 {
326 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
327 }
328
329 /**
330 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
331 * @fc: frame control bytes in little-endian byteorder
332 */
ieee80211_has_protected(__le16 fc)333 static inline bool ieee80211_has_protected(__le16 fc)
334 {
335 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
336 }
337
338 /**
339 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
340 * @fc: frame control bytes in little-endian byteorder
341 */
ieee80211_has_order(__le16 fc)342 static inline bool ieee80211_has_order(__le16 fc)
343 {
344 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
345 }
346
347 /**
348 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
349 * @fc: frame control bytes in little-endian byteorder
350 */
ieee80211_is_mgmt(__le16 fc)351 static inline bool ieee80211_is_mgmt(__le16 fc)
352 {
353 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
354 cpu_to_le16(IEEE80211_FTYPE_MGMT);
355 }
356
357 /**
358 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
359 * @fc: frame control bytes in little-endian byteorder
360 */
ieee80211_is_ctl(__le16 fc)361 static inline bool ieee80211_is_ctl(__le16 fc)
362 {
363 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
364 cpu_to_le16(IEEE80211_FTYPE_CTL);
365 }
366
367 /**
368 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
369 * @fc: frame control bytes in little-endian byteorder
370 */
ieee80211_is_data(__le16 fc)371 static inline bool ieee80211_is_data(__le16 fc)
372 {
373 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
374 cpu_to_le16(IEEE80211_FTYPE_DATA);
375 }
376
377 /**
378 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
379 * @fc: frame control bytes in little-endian byteorder
380 */
ieee80211_is_data_qos(__le16 fc)381 static inline bool ieee80211_is_data_qos(__le16 fc)
382 {
383 /*
384 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
385 * to check the one bit
386 */
387 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
388 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
389 }
390
391 /**
392 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
393 * @fc: frame control bytes in little-endian byteorder
394 */
ieee80211_is_data_present(__le16 fc)395 static inline bool ieee80211_is_data_present(__le16 fc)
396 {
397 /*
398 * mask with 0x40 and test that that bit is clear to only return true
399 * for the data-containing substypes.
400 */
401 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
402 cpu_to_le16(IEEE80211_FTYPE_DATA);
403 }
404
405 /**
406 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
407 * @fc: frame control bytes in little-endian byteorder
408 */
ieee80211_is_assoc_req(__le16 fc)409 static inline bool ieee80211_is_assoc_req(__le16 fc)
410 {
411 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
412 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
413 }
414
415 /**
416 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
417 * @fc: frame control bytes in little-endian byteorder
418 */
ieee80211_is_assoc_resp(__le16 fc)419 static inline bool ieee80211_is_assoc_resp(__le16 fc)
420 {
421 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
422 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
423 }
424
425 /**
426 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
427 * @fc: frame control bytes in little-endian byteorder
428 */
ieee80211_is_reassoc_req(__le16 fc)429 static inline bool ieee80211_is_reassoc_req(__le16 fc)
430 {
431 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
432 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
433 }
434
435 /**
436 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
437 * @fc: frame control bytes in little-endian byteorder
438 */
ieee80211_is_reassoc_resp(__le16 fc)439 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
440 {
441 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
442 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
443 }
444
445 /**
446 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
447 * @fc: frame control bytes in little-endian byteorder
448 */
ieee80211_is_probe_req(__le16 fc)449 static inline bool ieee80211_is_probe_req(__le16 fc)
450 {
451 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
452 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
453 }
454
455 /**
456 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
457 * @fc: frame control bytes in little-endian byteorder
458 */
ieee80211_is_probe_resp(__le16 fc)459 static inline bool ieee80211_is_probe_resp(__le16 fc)
460 {
461 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
462 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
463 }
464
465 /**
466 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
467 * @fc: frame control bytes in little-endian byteorder
468 */
ieee80211_is_beacon(__le16 fc)469 static inline bool ieee80211_is_beacon(__le16 fc)
470 {
471 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
472 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
473 }
474
475 /**
476 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
477 * @fc: frame control bytes in little-endian byteorder
478 */
ieee80211_is_atim(__le16 fc)479 static inline bool ieee80211_is_atim(__le16 fc)
480 {
481 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
482 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
483 }
484
485 /**
486 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
487 * @fc: frame control bytes in little-endian byteorder
488 */
ieee80211_is_disassoc(__le16 fc)489 static inline bool ieee80211_is_disassoc(__le16 fc)
490 {
491 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
492 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
493 }
494
495 /**
496 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
497 * @fc: frame control bytes in little-endian byteorder
498 */
ieee80211_is_auth(__le16 fc)499 static inline bool ieee80211_is_auth(__le16 fc)
500 {
501 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
502 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
503 }
504
505 /**
506 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
507 * @fc: frame control bytes in little-endian byteorder
508 */
ieee80211_is_deauth(__le16 fc)509 static inline bool ieee80211_is_deauth(__le16 fc)
510 {
511 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
512 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
513 }
514
515 /**
516 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
517 * @fc: frame control bytes in little-endian byteorder
518 */
ieee80211_is_action(__le16 fc)519 static inline bool ieee80211_is_action(__le16 fc)
520 {
521 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
522 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
523 }
524
525 /**
526 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
527 * @fc: frame control bytes in little-endian byteorder
528 */
ieee80211_is_back_req(__le16 fc)529 static inline bool ieee80211_is_back_req(__le16 fc)
530 {
531 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
532 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
533 }
534
535 /**
536 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
537 * @fc: frame control bytes in little-endian byteorder
538 */
ieee80211_is_back(__le16 fc)539 static inline bool ieee80211_is_back(__le16 fc)
540 {
541 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
542 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
543 }
544
545 /**
546 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
547 * @fc: frame control bytes in little-endian byteorder
548 */
ieee80211_is_pspoll(__le16 fc)549 static inline bool ieee80211_is_pspoll(__le16 fc)
550 {
551 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
552 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
553 }
554
555 /**
556 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
557 * @fc: frame control bytes in little-endian byteorder
558 */
ieee80211_is_rts(__le16 fc)559 static inline bool ieee80211_is_rts(__le16 fc)
560 {
561 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
562 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
563 }
564
565 /**
566 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
567 * @fc: frame control bytes in little-endian byteorder
568 */
ieee80211_is_cts(__le16 fc)569 static inline bool ieee80211_is_cts(__le16 fc)
570 {
571 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
572 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
573 }
574
575 /**
576 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
577 * @fc: frame control bytes in little-endian byteorder
578 */
ieee80211_is_ack(__le16 fc)579 static inline bool ieee80211_is_ack(__le16 fc)
580 {
581 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
582 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
583 }
584
585 /**
586 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
587 * @fc: frame control bytes in little-endian byteorder
588 */
ieee80211_is_cfend(__le16 fc)589 static inline bool ieee80211_is_cfend(__le16 fc)
590 {
591 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
592 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
593 }
594
595 /**
596 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
597 * @fc: frame control bytes in little-endian byteorder
598 */
ieee80211_is_cfendack(__le16 fc)599 static inline bool ieee80211_is_cfendack(__le16 fc)
600 {
601 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
602 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
603 }
604
605 /**
606 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
607 * @fc: frame control bytes in little-endian byteorder
608 */
ieee80211_is_nullfunc(__le16 fc)609 static inline bool ieee80211_is_nullfunc(__le16 fc)
610 {
611 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
612 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
613 }
614
615 /**
616 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
617 * @fc: frame control bytes in little-endian byteorder
618 */
ieee80211_is_qos_nullfunc(__le16 fc)619 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
620 {
621 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
622 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
623 }
624
625 /**
626 * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
627 * @fc: frame control field in little-endian byteorder
628 */
ieee80211_is_bufferable_mmpdu(__le16 fc)629 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
630 {
631 /* IEEE 802.11-2012, definition of "bufferable management frame";
632 * note that this ignores the IBSS special case. */
633 return ieee80211_is_mgmt(fc) &&
634 (ieee80211_is_action(fc) ||
635 ieee80211_is_disassoc(fc) ||
636 ieee80211_is_deauth(fc));
637 }
638
639 /**
640 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
641 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
642 */
ieee80211_is_first_frag(__le16 seq_ctrl)643 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
644 {
645 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
646 }
647
648 /**
649 * ieee80211_is_frag - check if a frame is a fragment
650 * @hdr: 802.11 header of the frame
651 */
ieee80211_is_frag(struct ieee80211_hdr * hdr)652 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
653 {
654 return ieee80211_has_morefrags(hdr->frame_control) ||
655 hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
656 }
657
658 struct ieee80211s_hdr {
659 u8 flags;
660 u8 ttl;
661 __le32 seqnum;
662 u8 eaddr1[ETH_ALEN];
663 u8 eaddr2[ETH_ALEN];
664 } __packed __aligned(2);
665
666 /* Mesh flags */
667 #define MESH_FLAGS_AE_A4 0x1
668 #define MESH_FLAGS_AE_A5_A6 0x2
669 #define MESH_FLAGS_AE 0x3
670 #define MESH_FLAGS_PS_DEEP 0x4
671
672 /**
673 * enum ieee80211_preq_flags - mesh PREQ element flags
674 *
675 * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
676 */
677 enum ieee80211_preq_flags {
678 IEEE80211_PREQ_PROACTIVE_PREP_FLAG = 1<<2,
679 };
680
681 /**
682 * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
683 *
684 * @IEEE80211_PREQ_TO_FLAG: target only subfield
685 * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
686 */
687 enum ieee80211_preq_target_flags {
688 IEEE80211_PREQ_TO_FLAG = 1<<0,
689 IEEE80211_PREQ_USN_FLAG = 1<<2,
690 };
691
692 /**
693 * struct ieee80211_quiet_ie
694 *
695 * This structure refers to "Quiet information element"
696 */
697 struct ieee80211_quiet_ie {
698 u8 count;
699 u8 period;
700 __le16 duration;
701 __le16 offset;
702 } __packed;
703
704 /**
705 * struct ieee80211_msrment_ie
706 *
707 * This structure refers to "Measurement Request/Report information element"
708 */
709 struct ieee80211_msrment_ie {
710 u8 token;
711 u8 mode;
712 u8 type;
713 u8 request[0];
714 } __packed;
715
716 /**
717 * struct ieee80211_channel_sw_ie
718 *
719 * This structure refers to "Channel Switch Announcement information element"
720 */
721 struct ieee80211_channel_sw_ie {
722 u8 mode;
723 u8 new_ch_num;
724 u8 count;
725 } __packed;
726
727 /**
728 * struct ieee80211_ext_chansw_ie
729 *
730 * This structure represents the "Extended Channel Switch Announcement element"
731 */
732 struct ieee80211_ext_chansw_ie {
733 u8 mode;
734 u8 new_operating_class;
735 u8 new_ch_num;
736 u8 count;
737 } __packed;
738
739 /**
740 * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
741 * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
742 * values here
743 * This structure represents the "Secondary Channel Offset element"
744 */
745 struct ieee80211_sec_chan_offs_ie {
746 u8 sec_chan_offs;
747 } __packed;
748
749 /**
750 * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
751 *
752 * This structure represents the "Mesh Channel Switch Paramters element"
753 */
754 struct ieee80211_mesh_chansw_params_ie {
755 u8 mesh_ttl;
756 u8 mesh_flags;
757 __le16 mesh_reason;
758 __le16 mesh_pre_value;
759 } __packed;
760
761 /**
762 * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
763 */
764 struct ieee80211_wide_bw_chansw_ie {
765 u8 new_channel_width;
766 u8 new_center_freq_seg0, new_center_freq_seg1;
767 } __packed;
768
769 /**
770 * struct ieee80211_tim
771 *
772 * This structure refers to "Traffic Indication Map information element"
773 */
774 struct ieee80211_tim_ie {
775 u8 dtim_count;
776 u8 dtim_period;
777 u8 bitmap_ctrl;
778 /* variable size: 1 - 251 bytes */
779 u8 virtual_map[1];
780 } __packed;
781
782 /**
783 * struct ieee80211_meshconf_ie
784 *
785 * This structure refers to "Mesh Configuration information element"
786 */
787 struct ieee80211_meshconf_ie {
788 u8 meshconf_psel;
789 u8 meshconf_pmetric;
790 u8 meshconf_congest;
791 u8 meshconf_synch;
792 u8 meshconf_auth;
793 u8 meshconf_form;
794 u8 meshconf_cap;
795 } __packed;
796
797 /**
798 * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
799 *
800 * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
801 * additional mesh peerings with other mesh STAs
802 * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
803 * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
804 * is ongoing
805 * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
806 * neighbors in deep sleep mode
807 */
808 enum mesh_config_capab_flags {
809 IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS = 0x01,
810 IEEE80211_MESHCONF_CAPAB_FORWARDING = 0x08,
811 IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING = 0x20,
812 IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL = 0x40,
813 };
814
815 /**
816 * mesh channel switch parameters element's flag indicator
817 *
818 */
819 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
820 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
821 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
822
823 /**
824 * struct ieee80211_rann_ie
825 *
826 * This structure refers to "Root Announcement information element"
827 */
828 struct ieee80211_rann_ie {
829 u8 rann_flags;
830 u8 rann_hopcount;
831 u8 rann_ttl;
832 u8 rann_addr[ETH_ALEN];
833 __le32 rann_seq;
834 __le32 rann_interval;
835 __le32 rann_metric;
836 } __packed;
837
838 enum ieee80211_rann_flags {
839 RANN_FLAG_IS_GATE = 1 << 0,
840 };
841
842 enum ieee80211_ht_chanwidth_values {
843 IEEE80211_HT_CHANWIDTH_20MHZ = 0,
844 IEEE80211_HT_CHANWIDTH_ANY = 1,
845 };
846
847 /**
848 * enum ieee80211_opmode_bits - VHT operating mode field bits
849 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
850 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
851 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
852 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
853 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
854 * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
855 * (the NSS value is the value of this field + 1)
856 * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
857 * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
858 * using a beamforming steering matrix
859 */
860 enum ieee80211_vht_opmode_bits {
861 IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK = 3,
862 IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ = 0,
863 IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ = 1,
864 IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ = 2,
865 IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
866 IEEE80211_OPMODE_NOTIF_RX_NSS_MASK = 0x70,
867 IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT = 4,
868 IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF = 0x80,
869 };
870
871 #define WLAN_SA_QUERY_TR_ID_LEN 2
872 #define WLAN_MEMBERSHIP_LEN 8
873 #define WLAN_USER_POSITION_LEN 16
874
875 /**
876 * struct ieee80211_tpc_report_ie
877 *
878 * This structure refers to "TPC Report element"
879 */
880 struct ieee80211_tpc_report_ie {
881 u8 tx_power;
882 u8 link_margin;
883 } __packed;
884
885 struct ieee80211_mgmt {
886 __le16 frame_control;
887 __le16 duration;
888 u8 da[ETH_ALEN];
889 u8 sa[ETH_ALEN];
890 u8 bssid[ETH_ALEN];
891 __le16 seq_ctrl;
892 union {
893 struct {
894 __le16 auth_alg;
895 __le16 auth_transaction;
896 __le16 status_code;
897 /* possibly followed by Challenge text */
898 u8 variable[0];
899 } __packed auth;
900 struct {
901 __le16 reason_code;
902 } __packed deauth;
903 struct {
904 __le16 capab_info;
905 __le16 listen_interval;
906 /* followed by SSID and Supported rates */
907 u8 variable[0];
908 } __packed assoc_req;
909 struct {
910 __le16 capab_info;
911 __le16 status_code;
912 __le16 aid;
913 /* followed by Supported rates */
914 u8 variable[0];
915 } __packed assoc_resp, reassoc_resp;
916 struct {
917 __le16 capab_info;
918 __le16 listen_interval;
919 u8 current_ap[ETH_ALEN];
920 /* followed by SSID and Supported rates */
921 u8 variable[0];
922 } __packed reassoc_req;
923 struct {
924 __le16 reason_code;
925 } __packed disassoc;
926 struct {
927 __le64 timestamp;
928 __le16 beacon_int;
929 __le16 capab_info;
930 /* followed by some of SSID, Supported rates,
931 * FH Params, DS Params, CF Params, IBSS Params, TIM */
932 u8 variable[0];
933 } __packed beacon;
934 struct {
935 /* only variable items: SSID, Supported rates */
936 u8 variable[0];
937 } __packed probe_req;
938 struct {
939 __le64 timestamp;
940 __le16 beacon_int;
941 __le16 capab_info;
942 /* followed by some of SSID, Supported rates,
943 * FH Params, DS Params, CF Params, IBSS Params */
944 u8 variable[0];
945 } __packed probe_resp;
946 struct {
947 u8 category;
948 union {
949 struct {
950 u8 action_code;
951 u8 dialog_token;
952 u8 status_code;
953 u8 variable[0];
954 } __packed wme_action;
955 struct{
956 u8 action_code;
957 u8 variable[0];
958 } __packed chan_switch;
959 struct{
960 u8 action_code;
961 struct ieee80211_ext_chansw_ie data;
962 u8 variable[0];
963 } __packed ext_chan_switch;
964 struct{
965 u8 action_code;
966 u8 dialog_token;
967 u8 element_id;
968 u8 length;
969 struct ieee80211_msrment_ie msr_elem;
970 } __packed measurement;
971 struct{
972 u8 action_code;
973 u8 dialog_token;
974 __le16 capab;
975 __le16 timeout;
976 __le16 start_seq_num;
977 } __packed addba_req;
978 struct{
979 u8 action_code;
980 u8 dialog_token;
981 __le16 status;
982 __le16 capab;
983 __le16 timeout;
984 } __packed addba_resp;
985 struct{
986 u8 action_code;
987 __le16 params;
988 __le16 reason_code;
989 } __packed delba;
990 struct {
991 u8 action_code;
992 u8 variable[0];
993 } __packed self_prot;
994 struct{
995 u8 action_code;
996 u8 variable[0];
997 } __packed mesh_action;
998 struct {
999 u8 action;
1000 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1001 } __packed sa_query;
1002 struct {
1003 u8 action;
1004 u8 smps_control;
1005 } __packed ht_smps;
1006 struct {
1007 u8 action_code;
1008 u8 chanwidth;
1009 } __packed ht_notify_cw;
1010 struct {
1011 u8 action_code;
1012 u8 dialog_token;
1013 __le16 capability;
1014 u8 variable[0];
1015 } __packed tdls_discover_resp;
1016 struct {
1017 u8 action_code;
1018 u8 operating_mode;
1019 } __packed vht_opmode_notif;
1020 struct {
1021 u8 action_code;
1022 u8 membership[WLAN_MEMBERSHIP_LEN];
1023 u8 position[WLAN_USER_POSITION_LEN];
1024 } __packed vht_group_notif;
1025 struct {
1026 u8 action_code;
1027 u8 dialog_token;
1028 u8 tpc_elem_id;
1029 u8 tpc_elem_length;
1030 struct ieee80211_tpc_report_ie tpc;
1031 } __packed tpc_report;
1032 struct {
1033 u8 action_code;
1034 u8 dialog_token;
1035 u8 follow_up;
1036 u8 tod[6];
1037 u8 toa[6];
1038 __le16 tod_error;
1039 __le16 toa_error;
1040 u8 variable[0];
1041 } __packed ftm;
1042 } u;
1043 } __packed action;
1044 } u;
1045 } __packed __aligned(2);
1046
1047 /* Supported rates membership selectors */
1048 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
1049 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1050
1051 /* mgmt header + 1 byte category code */
1052 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1053
1054
1055 /* Management MIC information element (IEEE 802.11w) */
1056 struct ieee80211_mmie {
1057 u8 element_id;
1058 u8 length;
1059 __le16 key_id;
1060 u8 sequence_number[6];
1061 u8 mic[8];
1062 } __packed;
1063
1064 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1065 struct ieee80211_mmie_16 {
1066 u8 element_id;
1067 u8 length;
1068 __le16 key_id;
1069 u8 sequence_number[6];
1070 u8 mic[16];
1071 } __packed;
1072
1073 struct ieee80211_vendor_ie {
1074 u8 element_id;
1075 u8 len;
1076 u8 oui[3];
1077 u8 oui_type;
1078 } __packed;
1079
1080 struct ieee80211_wmm_ac_param {
1081 u8 aci_aifsn; /* AIFSN, ACM, ACI */
1082 u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1083 __le16 txop_limit;
1084 } __packed;
1085
1086 struct ieee80211_wmm_param_ie {
1087 u8 element_id; /* Element ID: 221 (0xdd); */
1088 u8 len; /* Length: 24 */
1089 /* required fields for WMM version 1 */
1090 u8 oui[3]; /* 00:50:f2 */
1091 u8 oui_type; /* 2 */
1092 u8 oui_subtype; /* 1 */
1093 u8 version; /* 1 for WMM version 1.0 */
1094 u8 qos_info; /* AP/STA specific QoS info */
1095 u8 reserved; /* 0 */
1096 /* AC_BE, AC_BK, AC_VI, AC_VO */
1097 struct ieee80211_wmm_ac_param ac[4];
1098 } __packed;
1099
1100 /* Control frames */
1101 struct ieee80211_rts {
1102 __le16 frame_control;
1103 __le16 duration;
1104 u8 ra[ETH_ALEN];
1105 u8 ta[ETH_ALEN];
1106 } __packed __aligned(2);
1107
1108 struct ieee80211_cts {
1109 __le16 frame_control;
1110 __le16 duration;
1111 u8 ra[ETH_ALEN];
1112 } __packed __aligned(2);
1113
1114 struct ieee80211_pspoll {
1115 __le16 frame_control;
1116 __le16 aid;
1117 u8 bssid[ETH_ALEN];
1118 u8 ta[ETH_ALEN];
1119 } __packed __aligned(2);
1120
1121 /* TDLS */
1122
1123 /* Channel switch timing */
1124 struct ieee80211_ch_switch_timing {
1125 __le16 switch_time;
1126 __le16 switch_timeout;
1127 } __packed;
1128
1129 /* Link-id information element */
1130 struct ieee80211_tdls_lnkie {
1131 u8 ie_type; /* Link Identifier IE */
1132 u8 ie_len;
1133 u8 bssid[ETH_ALEN];
1134 u8 init_sta[ETH_ALEN];
1135 u8 resp_sta[ETH_ALEN];
1136 } __packed;
1137
1138 struct ieee80211_tdls_data {
1139 u8 da[ETH_ALEN];
1140 u8 sa[ETH_ALEN];
1141 __be16 ether_type;
1142 u8 payload_type;
1143 u8 category;
1144 u8 action_code;
1145 union {
1146 struct {
1147 u8 dialog_token;
1148 __le16 capability;
1149 u8 variable[0];
1150 } __packed setup_req;
1151 struct {
1152 __le16 status_code;
1153 u8 dialog_token;
1154 __le16 capability;
1155 u8 variable[0];
1156 } __packed setup_resp;
1157 struct {
1158 __le16 status_code;
1159 u8 dialog_token;
1160 u8 variable[0];
1161 } __packed setup_cfm;
1162 struct {
1163 __le16 reason_code;
1164 u8 variable[0];
1165 } __packed teardown;
1166 struct {
1167 u8 dialog_token;
1168 u8 variable[0];
1169 } __packed discover_req;
1170 struct {
1171 u8 target_channel;
1172 u8 oper_class;
1173 u8 variable[0];
1174 } __packed chan_switch_req;
1175 struct {
1176 __le16 status_code;
1177 u8 variable[0];
1178 } __packed chan_switch_resp;
1179 } u;
1180 } __packed;
1181
1182 /*
1183 * Peer-to-Peer IE attribute related definitions.
1184 */
1185 /**
1186 * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1187 */
1188 enum ieee80211_p2p_attr_id {
1189 IEEE80211_P2P_ATTR_STATUS = 0,
1190 IEEE80211_P2P_ATTR_MINOR_REASON,
1191 IEEE80211_P2P_ATTR_CAPABILITY,
1192 IEEE80211_P2P_ATTR_DEVICE_ID,
1193 IEEE80211_P2P_ATTR_GO_INTENT,
1194 IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1195 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1196 IEEE80211_P2P_ATTR_GROUP_BSSID,
1197 IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1198 IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1199 IEEE80211_P2P_ATTR_MANAGABILITY,
1200 IEEE80211_P2P_ATTR_CHANNEL_LIST,
1201 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1202 IEEE80211_P2P_ATTR_DEVICE_INFO,
1203 IEEE80211_P2P_ATTR_GROUP_INFO,
1204 IEEE80211_P2P_ATTR_GROUP_ID,
1205 IEEE80211_P2P_ATTR_INTERFACE,
1206 IEEE80211_P2P_ATTR_OPER_CHANNEL,
1207 IEEE80211_P2P_ATTR_INVITE_FLAGS,
1208 /* 19 - 220: Reserved */
1209 IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1210
1211 IEEE80211_P2P_ATTR_MAX
1212 };
1213
1214 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1215 /* Typical max value used here */
1216 #define IEEE80211_P2P_NOA_DESC_MAX 4
1217
1218 struct ieee80211_p2p_noa_desc {
1219 u8 count;
1220 __le32 duration;
1221 __le32 interval;
1222 __le32 start_time;
1223 } __packed;
1224
1225 struct ieee80211_p2p_noa_attr {
1226 u8 index;
1227 u8 oppps_ctwindow;
1228 struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1229 } __packed;
1230
1231 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
1232 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7F
1233
1234 /**
1235 * struct ieee80211_bar - HT Block Ack Request
1236 *
1237 * This structure refers to "HT BlockAckReq" as
1238 * described in 802.11n draft section 7.2.1.7.1
1239 */
1240 struct ieee80211_bar {
1241 __le16 frame_control;
1242 __le16 duration;
1243 __u8 ra[ETH_ALEN];
1244 __u8 ta[ETH_ALEN];
1245 __le16 control;
1246 __le16 start_seq_num;
1247 } __packed;
1248
1249 /* 802.11 BAR control masks */
1250 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
1251 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
1252 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1253 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
1254 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
1255
1256 #define IEEE80211_HT_MCS_MASK_LEN 10
1257
1258 /**
1259 * struct ieee80211_mcs_info - MCS information
1260 * @rx_mask: RX mask
1261 * @rx_highest: highest supported RX rate. If set represents
1262 * the highest supported RX data rate in units of 1 Mbps.
1263 * If this field is 0 this value should not be used to
1264 * consider the highest RX data rate supported.
1265 * @tx_params: TX parameters
1266 */
1267 struct ieee80211_mcs_info {
1268 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1269 __le16 rx_highest;
1270 u8 tx_params;
1271 u8 reserved[3];
1272 } __packed;
1273
1274 /* 802.11n HT capability MSC set */
1275 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
1276 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
1277 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
1278 /* value 0 == 1 stream etc */
1279 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
1280 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
1281 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1282 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
1283
1284 /*
1285 * 802.11n D5.0 20.3.5 / 20.6 says:
1286 * - indices 0 to 7 and 32 are single spatial stream
1287 * - 8 to 31 are multiple spatial streams using equal modulation
1288 * [8..15 for two streams, 16..23 for three and 24..31 for four]
1289 * - remainder are multiple spatial streams using unequal modulation
1290 */
1291 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1292 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1293 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1294
1295 /**
1296 * struct ieee80211_ht_cap - HT capabilities
1297 *
1298 * This structure is the "HT capabilities element" as
1299 * described in 802.11n D5.0 7.3.2.57
1300 */
1301 struct ieee80211_ht_cap {
1302 __le16 cap_info;
1303 u8 ampdu_params_info;
1304
1305 /* 16 bytes MCS information */
1306 struct ieee80211_mcs_info mcs;
1307
1308 __le16 extended_ht_cap_info;
1309 __le32 tx_BF_cap_info;
1310 u8 antenna_selection_info;
1311 } __packed;
1312
1313 /* 802.11n HT capabilities masks (for cap_info) */
1314 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
1315 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
1316 #define IEEE80211_HT_CAP_SM_PS 0x000C
1317 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
1318 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
1319 #define IEEE80211_HT_CAP_SGI_20 0x0020
1320 #define IEEE80211_HT_CAP_SGI_40 0x0040
1321 #define IEEE80211_HT_CAP_TX_STBC 0x0080
1322 #define IEEE80211_HT_CAP_RX_STBC 0x0300
1323 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
1324 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
1325 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
1326 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
1327 #define IEEE80211_HT_CAP_RESERVED 0x2000
1328 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
1329 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
1330
1331 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1332 #define IEEE80211_HT_EXT_CAP_PCO 0x0001
1333 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
1334 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
1335 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
1336 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
1337 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
1338 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
1339
1340 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1341 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
1342 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
1343 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
1344
1345 /*
1346 * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1347 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1348 */
1349 enum ieee80211_max_ampdu_length_exp {
1350 IEEE80211_HT_MAX_AMPDU_8K = 0,
1351 IEEE80211_HT_MAX_AMPDU_16K = 1,
1352 IEEE80211_HT_MAX_AMPDU_32K = 2,
1353 IEEE80211_HT_MAX_AMPDU_64K = 3
1354 };
1355
1356 /*
1357 * Maximum length of AMPDU that the STA can receive in VHT.
1358 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1359 */
1360 enum ieee80211_vht_max_ampdu_length_exp {
1361 IEEE80211_VHT_MAX_AMPDU_8K = 0,
1362 IEEE80211_VHT_MAX_AMPDU_16K = 1,
1363 IEEE80211_VHT_MAX_AMPDU_32K = 2,
1364 IEEE80211_VHT_MAX_AMPDU_64K = 3,
1365 IEEE80211_VHT_MAX_AMPDU_128K = 4,
1366 IEEE80211_VHT_MAX_AMPDU_256K = 5,
1367 IEEE80211_VHT_MAX_AMPDU_512K = 6,
1368 IEEE80211_VHT_MAX_AMPDU_1024K = 7
1369 };
1370
1371 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1372
1373 /* Minimum MPDU start spacing */
1374 enum ieee80211_min_mpdu_spacing {
1375 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1376 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1377 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1378 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1379 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1380 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1381 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1382 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1383 };
1384
1385 /**
1386 * struct ieee80211_ht_operation - HT operation IE
1387 *
1388 * This structure is the "HT operation element" as
1389 * described in 802.11n-2009 7.3.2.57
1390 */
1391 struct ieee80211_ht_operation {
1392 u8 primary_chan;
1393 u8 ht_param;
1394 __le16 operation_mode;
1395 __le16 stbc_param;
1396 u8 basic_set[16];
1397 } __packed;
1398
1399 /* for ht_param */
1400 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1401 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1402 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1403 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1404 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1405 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1406
1407 /* for operation_mode */
1408 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1409 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1410 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1411 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1412 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1413 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1414 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1415 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT 5
1416 #define IEEE80211_HT_OP_MODE_CCFS2_MASK 0x1fe0
1417
1418 /* for stbc_param */
1419 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1420 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1421 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1422 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1423 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1424 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1425
1426
1427 /* block-ack parameters */
1428 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1429 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1430 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1431 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1432 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1433 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1434
1435 /*
1436 * A-MPDU buffer sizes
1437 * According to HT size varies from 8 to 64 frames
1438 * HE adds the ability to have up to 256 frames.
1439 */
1440 #define IEEE80211_MIN_AMPDU_BUF 0x8
1441 #define IEEE80211_MAX_AMPDU_BUF_HT 0x40
1442 #define IEEE80211_MAX_AMPDU_BUF 0x100
1443
1444
1445 /* Spatial Multiplexing Power Save Modes (for capability) */
1446 #define WLAN_HT_CAP_SM_PS_STATIC 0
1447 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1448 #define WLAN_HT_CAP_SM_PS_INVALID 2
1449 #define WLAN_HT_CAP_SM_PS_DISABLED 3
1450
1451 /* for SM power control field lower two bits */
1452 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
1453 #define WLAN_HT_SMPS_CONTROL_STATIC 1
1454 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1455
1456 /**
1457 * struct ieee80211_vht_mcs_info - VHT MCS information
1458 * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1459 * @rx_highest: Indicates highest long GI VHT PPDU data rate
1460 * STA can receive. Rate expressed in units of 1 Mbps.
1461 * If this field is 0 this value should not be used to
1462 * consider the highest RX data rate supported.
1463 * The top 3 bits of this field are reserved.
1464 * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1465 * @tx_highest: Indicates highest long GI VHT PPDU data rate
1466 * STA can transmit. Rate expressed in units of 1 Mbps.
1467 * If this field is 0 this value should not be used to
1468 * consider the highest TX data rate supported.
1469 * The top 3 bits of this field are reserved.
1470 */
1471 struct ieee80211_vht_mcs_info {
1472 __le16 rx_mcs_map;
1473 __le16 rx_highest;
1474 __le16 tx_mcs_map;
1475 __le16 tx_highest;
1476 } __packed;
1477
1478 /**
1479 * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1480 * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1481 * number of streams
1482 * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1483 * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1484 * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1485 *
1486 * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1487 * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1488 * both split into 8 subfields by number of streams. These values indicate
1489 * which MCSes are supported for the number of streams the value appears
1490 * for.
1491 */
1492 enum ieee80211_vht_mcs_support {
1493 IEEE80211_VHT_MCS_SUPPORT_0_7 = 0,
1494 IEEE80211_VHT_MCS_SUPPORT_0_8 = 1,
1495 IEEE80211_VHT_MCS_SUPPORT_0_9 = 2,
1496 IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1497 };
1498
1499 /**
1500 * struct ieee80211_vht_cap - VHT capabilities
1501 *
1502 * This structure is the "VHT capabilities element" as
1503 * described in 802.11ac D3.0 8.4.2.160
1504 * @vht_cap_info: VHT capability info
1505 * @supp_mcs: VHT MCS supported rates
1506 */
1507 struct ieee80211_vht_cap {
1508 __le32 vht_cap_info;
1509 struct ieee80211_vht_mcs_info supp_mcs;
1510 } __packed;
1511
1512 /**
1513 * enum ieee80211_vht_chanwidth - VHT channel width
1514 * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1515 * determine the channel width (20 or 40 MHz)
1516 * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1517 * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1518 * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1519 */
1520 enum ieee80211_vht_chanwidth {
1521 IEEE80211_VHT_CHANWIDTH_USE_HT = 0,
1522 IEEE80211_VHT_CHANWIDTH_80MHZ = 1,
1523 IEEE80211_VHT_CHANWIDTH_160MHZ = 2,
1524 IEEE80211_VHT_CHANWIDTH_80P80MHZ = 3,
1525 };
1526
1527 /**
1528 * struct ieee80211_vht_operation - VHT operation IE
1529 *
1530 * This structure is the "VHT operation element" as
1531 * described in 802.11ac D3.0 8.4.2.161
1532 * @chan_width: Operating channel width
1533 * @center_freq_seg0_idx: center freq segment 0 index
1534 * @center_freq_seg1_idx: center freq segment 1 index
1535 * @basic_mcs_set: VHT Basic MCS rate set
1536 */
1537 struct ieee80211_vht_operation {
1538 u8 chan_width;
1539 u8 center_freq_seg0_idx;
1540 u8 center_freq_seg1_idx;
1541 __le16 basic_mcs_set;
1542 } __packed;
1543
1544 /**
1545 * struct ieee80211_he_cap_elem - HE capabilities element
1546 *
1547 * This structure is the "HE capabilities element" fixed fields as
1548 * described in P802.11ax_D2.0 section 9.4.2.237.2 and 9.4.2.237.3
1549 */
1550 struct ieee80211_he_cap_elem {
1551 u8 mac_cap_info[5];
1552 u8 phy_cap_info[9];
1553 } __packed;
1554
1555 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN 5
1556
1557 /**
1558 * enum ieee80211_he_mcs_support - HE MCS support definitions
1559 * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1560 * number of streams
1561 * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1562 * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
1563 * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
1564 *
1565 * These definitions are used in each 2-bit subfield of the rx_mcs_*
1566 * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
1567 * both split into 8 subfields by number of streams. These values indicate
1568 * which MCSes are supported for the number of streams the value appears
1569 * for.
1570 */
1571 enum ieee80211_he_mcs_support {
1572 IEEE80211_HE_MCS_SUPPORT_0_7 = 0,
1573 IEEE80211_HE_MCS_SUPPORT_0_9 = 1,
1574 IEEE80211_HE_MCS_SUPPORT_0_11 = 2,
1575 IEEE80211_HE_MCS_NOT_SUPPORTED = 3,
1576 };
1577
1578 /**
1579 * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
1580 *
1581 * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
1582 * described in P802.11ax_D2.0 section 9.4.2.237.4
1583 *
1584 * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1585 * widths less than 80MHz.
1586 * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1587 * widths less than 80MHz.
1588 * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1589 * width 160MHz.
1590 * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1591 * width 160MHz.
1592 * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
1593 * channel width 80p80MHz.
1594 * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
1595 * channel width 80p80MHz.
1596 */
1597 struct ieee80211_he_mcs_nss_supp {
1598 __le16 rx_mcs_80;
1599 __le16 tx_mcs_80;
1600 __le16 rx_mcs_160;
1601 __le16 tx_mcs_160;
1602 __le16 rx_mcs_80p80;
1603 __le16 tx_mcs_80p80;
1604 } __packed;
1605
1606 /**
1607 * struct ieee80211_he_operation - HE capabilities element
1608 *
1609 * This structure is the "HE operation element" fields as
1610 * described in P802.11ax_D2.0 section 9.4.2.238
1611 */
1612 struct ieee80211_he_operation {
1613 __le32 he_oper_params;
1614 __le16 he_mcs_nss_set;
1615 /* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */
1616 u8 optional[0];
1617 } __packed;
1618
1619 /**
1620 * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
1621 *
1622 * This structure is the "MU AC Parameter Record" fields as
1623 * described in P802.11ax_D2.0 section 9.4.2.240
1624 */
1625 struct ieee80211_he_mu_edca_param_ac_rec {
1626 u8 aifsn;
1627 u8 ecw_min_max;
1628 u8 mu_edca_timer;
1629 } __packed;
1630
1631 /**
1632 * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
1633 *
1634 * This structure is the "MU EDCA Parameter Set element" fields as
1635 * described in P802.11ax_D2.0 section 9.4.2.240
1636 */
1637 struct ieee80211_mu_edca_param_set {
1638 u8 mu_qos_info;
1639 struct ieee80211_he_mu_edca_param_ac_rec ac_be;
1640 struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
1641 struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
1642 struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
1643 } __packed;
1644
1645 /* 802.11ac VHT Capabilities */
1646 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000
1647 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
1648 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002
1649 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK 0x00000003
1650 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004
1651 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008
1652 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK 0x0000000C
1653 #define IEEE80211_VHT_CAP_RXLDPC 0x00000010
1654 #define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020
1655 #define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040
1656 #define IEEE80211_VHT_CAP_TXSTBC 0x00000080
1657 #define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100
1658 #define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200
1659 #define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300
1660 #define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400
1661 #define IEEE80211_VHT_CAP_RXSTBC_MASK 0x00000700
1662 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800
1663 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000
1664 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT 13
1665 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK \
1666 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1667 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT 16
1668 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK \
1669 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1670 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000
1671 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000
1672 #define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000
1673 #define IEEE80211_VHT_CAP_HTC_VHT 0x00400000
1674 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT 23
1675 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
1676 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1677 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000
1678 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000
1679 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000
1680 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000
1681
1682 /* 802.11ax HE MAC capabilities */
1683 #define IEEE80211_HE_MAC_CAP0_HTC_HE 0x01
1684 #define IEEE80211_HE_MAC_CAP0_TWT_REQ 0x02
1685 #define IEEE80211_HE_MAC_CAP0_TWT_RES 0x04
1686 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP 0x00
1687 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1 0x08
1688 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2 0x10
1689 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3 0x18
1690 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK 0x18
1691 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1 0x00
1692 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2 0x20
1693 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4 0x40
1694 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8 0x60
1695 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16 0x80
1696 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32 0xa0
1697 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64 0xc0
1698 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED 0xe0
1699 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK 0xe0
1700
1701 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED 0x00
1702 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128 0x01
1703 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256 0x02
1704 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512 0x03
1705 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK 0x03
1706 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US 0x00
1707 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US 0x04
1708 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US 0x08
1709 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK 0x0c
1710 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_1 0x00
1711 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_2 0x10
1712 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_3 0x20
1713 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_4 0x30
1714 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_5 0x40
1715 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_6 0x50
1716 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_7 0x60
1717 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_8 0x70
1718 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_MASK 0x70
1719
1720 /* Link adaptation is split between byte HE_MAC_CAP1 and
1721 * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
1722 * in which case the following values apply:
1723 * 0 = No feedback.
1724 * 1 = reserved.
1725 * 2 = Unsolicited feedback.
1726 * 3 = both
1727 */
1728 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION 0x80
1729
1730 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION 0x01
1731 #define IEEE80211_HE_MAC_CAP2_ALL_ACK 0x02
1732 #define IEEE80211_HE_MAC_CAP2_UL_MU_RESP_SCHED 0x04
1733 #define IEEE80211_HE_MAC_CAP2_BSR 0x08
1734 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT 0x10
1735 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP 0x20
1736 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING 0x40
1737 #define IEEE80211_HE_MAC_CAP2_ACK_EN 0x80
1738
1739 #define IEEE80211_HE_MAC_CAP3_GRP_ADDR_MULTI_STA_BA_DL_MU 0x01
1740 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL 0x02
1741 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA 0x04
1742
1743 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
1744 * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
1745 * same field in the HE capabilities.
1746 */
1747 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_USE_VHT 0x00
1748 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_1 0x08
1749 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_2 0x10
1750 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_RESERVED 0x18
1751 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_MASK 0x18
1752 #define IEEE80211_HE_MAC_CAP3_A_AMSDU_FRAG 0x20
1753 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED 0x40
1754 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS 0x80
1755
1756 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG 0x01
1757 #define IEEE80211_HE_MAC_CAP4_QTP 0x02
1758 #define IEEE80211_HE_MAC_CAP4_BQR 0x04
1759 #define IEEE80211_HE_MAC_CAP4_SR_RESP 0x08
1760 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP 0x10
1761 #define IEEE80211_HE_MAC_CAP4_OPS 0x20
1762 #define IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU 0x40
1763
1764 /* 802.11ax HE PHY capabilities */
1765 #define IEEE80211_HE_PHY_CAP0_DUAL_BAND 0x01
1766 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G 0x02
1767 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G 0x04
1768 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G 0x08
1769 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G 0x10
1770 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G 0x20
1771 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G 0x40
1772 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK 0xfe
1773
1774 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ 0x01
1775 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ 0x02
1776 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
1777 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
1778 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK 0x0f
1779 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A 0x10
1780 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD 0x20
1781 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US 0x40
1782 /* Midamble RX Max NSTS is split between byte #2 and byte #3 */
1783 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_MAX_NSTS 0x80
1784
1785 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_MAX_NSTS 0x01
1786 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US 0x02
1787 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ 0x04
1788 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ 0x08
1789 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX 0x10
1790 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX 0x20
1791
1792 /* Note that the meaning of UL MU below is different between an AP and a non-AP
1793 * sta, where in the AP case it indicates support for Rx and in the non-AP sta
1794 * case it indicates support for Tx.
1795 */
1796 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO 0x40
1797 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO 0x80
1798
1799 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM 0x00
1800 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK 0x01
1801 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK 0x02
1802 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM 0x03
1803 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK 0x03
1804 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1 0x00
1805 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2 0x04
1806 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM 0x00
1807 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK 0x08
1808 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK 0x10
1809 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM 0x18
1810 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK 0x18
1811 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1 0x00
1812 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2 0x20
1813 #define IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA 0x40
1814 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER 0x80
1815
1816 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE 0x01
1817 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER 0x02
1818
1819 /* Minimal allowed value of Max STS under 80MHz is 3 */
1820 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 0x0c
1821 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5 0x10
1822 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6 0x14
1823 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7 0x18
1824 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8 0x1c
1825 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK 0x1c
1826
1827 /* Minimal allowed value of Max STS above 80MHz is 3 */
1828 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4 0x60
1829 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5 0x80
1830 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6 0xa0
1831 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7 0xc0
1832 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8 0xe0
1833 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK 0xe0
1834
1835 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1 0x00
1836 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2 0x01
1837 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3 0x02
1838 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4 0x03
1839 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5 0x04
1840 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6 0x05
1841 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7 0x06
1842 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8 0x07
1843 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK 0x07
1844
1845 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1 0x00
1846 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2 0x08
1847 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3 0x10
1848 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4 0x18
1849 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5 0x20
1850 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6 0x28
1851 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7 0x30
1852 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8 0x38
1853 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK 0x38
1854
1855 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK 0x40
1856 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK 0x80
1857
1858 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU 0x01
1859 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU 0x02
1860 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB 0x04
1861 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB 0x08
1862 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB 0x10
1863 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE 0x20
1864 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO 0x40
1865 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT 0x80
1866
1867 #define IEEE80211_HE_PHY_CAP7_SRP_BASED_SR 0x01
1868 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR 0x02
1869 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI 0x04
1870 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1 0x08
1871 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2 0x10
1872 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3 0x18
1873 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4 0x20
1874 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5 0x28
1875 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6 0x30
1876 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7 0x38
1877 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK 0x38
1878 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ 0x40
1879 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ 0x80
1880
1881 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI 0x01
1882 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G 0x02
1883 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU 0x04
1884 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU 0x08
1885 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI 0x10
1886 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_2X_AND_1XLTF 0x20
1887
1888 /* 802.11ax HE TX/RX MCS NSS Support */
1889 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS (3)
1890 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS (6)
1891 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS (11)
1892 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK 0x07c0
1893 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK 0xf800
1894
1895 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
1896 enum ieee80211_he_highest_mcs_supported_subfield_enc {
1897 HIGHEST_MCS_SUPPORTED_MCS7 = 0,
1898 HIGHEST_MCS_SUPPORTED_MCS8,
1899 HIGHEST_MCS_SUPPORTED_MCS9,
1900 HIGHEST_MCS_SUPPORTED_MCS10,
1901 HIGHEST_MCS_SUPPORTED_MCS11,
1902 };
1903
1904 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
1905 static inline u8
ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem * he_cap)1906 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
1907 {
1908 u8 count = 4;
1909
1910 if (he_cap->phy_cap_info[0] &
1911 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
1912 count += 4;
1913
1914 if (he_cap->phy_cap_info[0] &
1915 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
1916 count += 4;
1917
1918 return count;
1919 }
1920
1921 /* 802.11ax HE PPE Thresholds */
1922 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS (1)
1923 #define IEEE80211_PPE_THRES_NSS_POS (0)
1924 #define IEEE80211_PPE_THRES_NSS_MASK (7)
1925 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU \
1926 (BIT(5) | BIT(6))
1927 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 0x78
1928 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS (3)
1929 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE (3)
1930
1931 /*
1932 * Calculate 802.11ax HE capabilities IE PPE field size
1933 * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
1934 */
1935 static inline u8
ieee80211_he_ppe_size(u8 ppe_thres_hdr,const u8 * phy_cap_info)1936 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
1937 {
1938 u8 n;
1939
1940 if ((phy_cap_info[6] &
1941 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
1942 return 0;
1943
1944 n = hweight8(ppe_thres_hdr &
1945 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
1946 n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
1947 IEEE80211_PPE_THRES_NSS_POS));
1948
1949 /*
1950 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
1951 * total size.
1952 */
1953 n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
1954 n = DIV_ROUND_UP(n, 8);
1955
1956 return n;
1957 }
1958
1959 /* HE Operation defines */
1960 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK 0x0000003f
1961 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK 0x000001c0
1962 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_OFFSET 6
1963 #define IEEE80211_HE_OPERATION_TWT_REQUIRED 0x00000200
1964 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK 0x000ffc00
1965 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET 10
1966 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x000100000
1967 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO 0x000200000
1968 #define IEEE80211_HE_OPERATION_MULTI_BSSID_AP 0x10000000
1969 #define IEEE80211_HE_OPERATION_TX_BSSID_INDICATOR 0x20000000
1970 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED 0x40000000
1971
1972 /*
1973 * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
1974 * @he_oper_ie: byte data of the He Operations IE, stating from the the byte
1975 * after the ext ID byte. It is assumed that he_oper_ie has at least
1976 * sizeof(struct ieee80211_he_operation) bytes, checked already in
1977 * ieee802_11_parse_elems_crc()
1978 * @return the actual size of the IE data (not including header), or 0 on error
1979 */
1980 static inline u8
ieee80211_he_oper_size(const u8 * he_oper_ie)1981 ieee80211_he_oper_size(const u8 *he_oper_ie)
1982 {
1983 struct ieee80211_he_operation *he_oper = (void *)he_oper_ie;
1984 u8 oper_len = sizeof(struct ieee80211_he_operation);
1985 u32 he_oper_params;
1986
1987 /* Make sure the input is not NULL */
1988 if (!he_oper_ie)
1989 return 0;
1990
1991 /* Calc required length */
1992 he_oper_params = le32_to_cpu(he_oper->he_oper_params);
1993 if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
1994 oper_len += 3;
1995 if (he_oper_params & IEEE80211_HE_OPERATION_MULTI_BSSID_AP)
1996 oper_len++;
1997
1998 /* Add the first byte (extension ID) to the total length */
1999 oper_len++;
2000
2001 return oper_len;
2002 }
2003
2004 /* Authentication algorithms */
2005 #define WLAN_AUTH_OPEN 0
2006 #define WLAN_AUTH_SHARED_KEY 1
2007 #define WLAN_AUTH_FT 2
2008 #define WLAN_AUTH_SAE 3
2009 #define WLAN_AUTH_FILS_SK 4
2010 #define WLAN_AUTH_FILS_SK_PFS 5
2011 #define WLAN_AUTH_FILS_PK 6
2012 #define WLAN_AUTH_LEAP 128
2013
2014 #define WLAN_AUTH_CHALLENGE_LEN 128
2015
2016 #define WLAN_CAPABILITY_ESS (1<<0)
2017 #define WLAN_CAPABILITY_IBSS (1<<1)
2018
2019 /*
2020 * A mesh STA sets the ESS and IBSS capability bits to zero.
2021 * however, this holds true for p2p probe responses (in the p2p_find
2022 * phase) as well.
2023 */
2024 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
2025 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
2026
2027 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
2028 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
2029 #define WLAN_CAPABILITY_PRIVACY (1<<4)
2030 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
2031 #define WLAN_CAPABILITY_PBCC (1<<6)
2032 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
2033
2034 /* 802.11h */
2035 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
2036 #define WLAN_CAPABILITY_QOS (1<<9)
2037 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
2038 #define WLAN_CAPABILITY_APSD (1<<11)
2039 #define WLAN_CAPABILITY_RADIO_MEASURE (1<<12)
2040 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
2041 #define WLAN_CAPABILITY_DEL_BACK (1<<14)
2042 #define WLAN_CAPABILITY_IMM_BACK (1<<15)
2043
2044 /* DMG (60gHz) 802.11ad */
2045 /* type - bits 0..1 */
2046 #define WLAN_CAPABILITY_DMG_TYPE_MASK (3<<0)
2047 #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */
2048 #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */
2049 #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */
2050
2051 #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2)
2052 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3)
2053 #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4)
2054 #define WLAN_CAPABILITY_DMG_ECPAC (1<<5)
2055
2056 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT (1<<8)
2057 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE (1<<12)
2058
2059 /* measurement */
2060 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
2061 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
2062 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
2063
2064 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
2065 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
2066 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
2067
2068 /* 802.11g ERP information element */
2069 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
2070 #define WLAN_ERP_USE_PROTECTION (1<<1)
2071 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
2072
2073 /* WLAN_ERP_BARKER_PREAMBLE values */
2074 enum {
2075 WLAN_ERP_PREAMBLE_SHORT = 0,
2076 WLAN_ERP_PREAMBLE_LONG = 1,
2077 };
2078
2079 /* Band ID, 802.11ad #8.4.1.45 */
2080 enum {
2081 IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
2082 IEEE80211_BANDID_SUB1 = 1, /* Sub-1 GHz (excluding TV white spaces) */
2083 IEEE80211_BANDID_2G = 2, /* 2.4 GHz */
2084 IEEE80211_BANDID_3G = 3, /* 3.6 GHz */
2085 IEEE80211_BANDID_5G = 4, /* 4.9 and 5 GHz */
2086 IEEE80211_BANDID_60G = 5, /* 60 GHz */
2087 };
2088
2089 /* Status codes */
2090 enum ieee80211_statuscode {
2091 WLAN_STATUS_SUCCESS = 0,
2092 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
2093 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
2094 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
2095 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
2096 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
2097 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
2098 WLAN_STATUS_CHALLENGE_FAIL = 15,
2099 WLAN_STATUS_AUTH_TIMEOUT = 16,
2100 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
2101 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
2102 /* 802.11b */
2103 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
2104 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
2105 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
2106 /* 802.11h */
2107 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
2108 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
2109 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
2110 /* 802.11g */
2111 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
2112 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
2113 /* 802.11w */
2114 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
2115 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
2116 /* 802.11i */
2117 WLAN_STATUS_INVALID_IE = 40,
2118 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
2119 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
2120 WLAN_STATUS_INVALID_AKMP = 43,
2121 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
2122 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
2123 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
2124 /* 802.11e */
2125 WLAN_STATUS_UNSPECIFIED_QOS = 32,
2126 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
2127 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
2128 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
2129 WLAN_STATUS_REQUEST_DECLINED = 37,
2130 WLAN_STATUS_INVALID_QOS_PARAM = 38,
2131 WLAN_STATUS_CHANGE_TSPEC = 39,
2132 WLAN_STATUS_WAIT_TS_DELAY = 47,
2133 WLAN_STATUS_NO_DIRECT_LINK = 48,
2134 WLAN_STATUS_STA_NOT_PRESENT = 49,
2135 WLAN_STATUS_STA_NOT_QSTA = 50,
2136 /* 802.11s */
2137 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
2138 WLAN_STATUS_FCG_NOT_SUPP = 78,
2139 WLAN_STATUS_STA_NO_TBTT = 78,
2140 /* 802.11ad */
2141 WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
2142 WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
2143 WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
2144 WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
2145 WLAN_STATUS_PERFORMING_FST_NOW = 87,
2146 WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
2147 WLAN_STATUS_REJECT_U_PID_SETTING = 89,
2148 WLAN_STATUS_REJECT_DSE_BAND = 96,
2149 WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
2150 WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
2151 /* 802.11ai */
2152 WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
2153 WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
2154 };
2155
2156
2157 /* Reason codes */
2158 enum ieee80211_reasoncode {
2159 WLAN_REASON_UNSPECIFIED = 1,
2160 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
2161 WLAN_REASON_DEAUTH_LEAVING = 3,
2162 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
2163 WLAN_REASON_DISASSOC_AP_BUSY = 5,
2164 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
2165 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
2166 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
2167 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
2168 /* 802.11h */
2169 WLAN_REASON_DISASSOC_BAD_POWER = 10,
2170 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
2171 /* 802.11i */
2172 WLAN_REASON_INVALID_IE = 13,
2173 WLAN_REASON_MIC_FAILURE = 14,
2174 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
2175 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
2176 WLAN_REASON_IE_DIFFERENT = 17,
2177 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
2178 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
2179 WLAN_REASON_INVALID_AKMP = 20,
2180 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
2181 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
2182 WLAN_REASON_IEEE8021X_FAILED = 23,
2183 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
2184 /* TDLS (802.11z) */
2185 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
2186 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
2187 /* 802.11e */
2188 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
2189 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
2190 WLAN_REASON_DISASSOC_LOW_ACK = 34,
2191 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
2192 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
2193 WLAN_REASON_QSTA_NOT_USE = 37,
2194 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
2195 WLAN_REASON_QSTA_TIMEOUT = 39,
2196 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
2197 /* 802.11s */
2198 WLAN_REASON_MESH_PEER_CANCELED = 52,
2199 WLAN_REASON_MESH_MAX_PEERS = 53,
2200 WLAN_REASON_MESH_CONFIG = 54,
2201 WLAN_REASON_MESH_CLOSE = 55,
2202 WLAN_REASON_MESH_MAX_RETRIES = 56,
2203 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
2204 WLAN_REASON_MESH_INVALID_GTK = 58,
2205 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
2206 WLAN_REASON_MESH_INVALID_SECURITY = 60,
2207 WLAN_REASON_MESH_PATH_ERROR = 61,
2208 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
2209 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
2210 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
2211 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
2212 WLAN_REASON_MESH_CHAN = 66,
2213 };
2214
2215
2216 /* Information Element IDs */
2217 enum ieee80211_eid {
2218 WLAN_EID_SSID = 0,
2219 WLAN_EID_SUPP_RATES = 1,
2220 WLAN_EID_FH_PARAMS = 2, /* reserved now */
2221 WLAN_EID_DS_PARAMS = 3,
2222 WLAN_EID_CF_PARAMS = 4,
2223 WLAN_EID_TIM = 5,
2224 WLAN_EID_IBSS_PARAMS = 6,
2225 WLAN_EID_COUNTRY = 7,
2226 /* 8, 9 reserved */
2227 WLAN_EID_REQUEST = 10,
2228 WLAN_EID_QBSS_LOAD = 11,
2229 WLAN_EID_EDCA_PARAM_SET = 12,
2230 WLAN_EID_TSPEC = 13,
2231 WLAN_EID_TCLAS = 14,
2232 WLAN_EID_SCHEDULE = 15,
2233 WLAN_EID_CHALLENGE = 16,
2234 /* 17-31 reserved for challenge text extension */
2235 WLAN_EID_PWR_CONSTRAINT = 32,
2236 WLAN_EID_PWR_CAPABILITY = 33,
2237 WLAN_EID_TPC_REQUEST = 34,
2238 WLAN_EID_TPC_REPORT = 35,
2239 WLAN_EID_SUPPORTED_CHANNELS = 36,
2240 WLAN_EID_CHANNEL_SWITCH = 37,
2241 WLAN_EID_MEASURE_REQUEST = 38,
2242 WLAN_EID_MEASURE_REPORT = 39,
2243 WLAN_EID_QUIET = 40,
2244 WLAN_EID_IBSS_DFS = 41,
2245 WLAN_EID_ERP_INFO = 42,
2246 WLAN_EID_TS_DELAY = 43,
2247 WLAN_EID_TCLAS_PROCESSING = 44,
2248 WLAN_EID_HT_CAPABILITY = 45,
2249 WLAN_EID_QOS_CAPA = 46,
2250 /* 47 reserved for Broadcom */
2251 WLAN_EID_RSN = 48,
2252 WLAN_EID_802_15_COEX = 49,
2253 WLAN_EID_EXT_SUPP_RATES = 50,
2254 WLAN_EID_AP_CHAN_REPORT = 51,
2255 WLAN_EID_NEIGHBOR_REPORT = 52,
2256 WLAN_EID_RCPI = 53,
2257 WLAN_EID_MOBILITY_DOMAIN = 54,
2258 WLAN_EID_FAST_BSS_TRANSITION = 55,
2259 WLAN_EID_TIMEOUT_INTERVAL = 56,
2260 WLAN_EID_RIC_DATA = 57,
2261 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
2262 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
2263 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
2264 WLAN_EID_HT_OPERATION = 61,
2265 WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
2266 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
2267 WLAN_EID_ANTENNA_INFO = 64,
2268 WLAN_EID_RSNI = 65,
2269 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
2270 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
2271 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
2272 WLAN_EID_TIME_ADVERTISEMENT = 69,
2273 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
2274 WLAN_EID_MULTIPLE_BSSID = 71,
2275 WLAN_EID_BSS_COEX_2040 = 72,
2276 WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
2277 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
2278 WLAN_EID_RIC_DESCRIPTOR = 75,
2279 WLAN_EID_MMIE = 76,
2280 WLAN_EID_ASSOC_COMEBACK_TIME = 77,
2281 WLAN_EID_EVENT_REQUEST = 78,
2282 WLAN_EID_EVENT_REPORT = 79,
2283 WLAN_EID_DIAGNOSTIC_REQUEST = 80,
2284 WLAN_EID_DIAGNOSTIC_REPORT = 81,
2285 WLAN_EID_LOCATION_PARAMS = 82,
2286 WLAN_EID_NON_TX_BSSID_CAP = 83,
2287 WLAN_EID_SSID_LIST = 84,
2288 WLAN_EID_MULTI_BSSID_IDX = 85,
2289 WLAN_EID_FMS_DESCRIPTOR = 86,
2290 WLAN_EID_FMS_REQUEST = 87,
2291 WLAN_EID_FMS_RESPONSE = 88,
2292 WLAN_EID_QOS_TRAFFIC_CAPA = 89,
2293 WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
2294 WLAN_EID_TSF_REQUEST = 91,
2295 WLAN_EID_TSF_RESPOSNE = 92,
2296 WLAN_EID_WNM_SLEEP_MODE = 93,
2297 WLAN_EID_TIM_BCAST_REQ = 94,
2298 WLAN_EID_TIM_BCAST_RESP = 95,
2299 WLAN_EID_COLL_IF_REPORT = 96,
2300 WLAN_EID_CHANNEL_USAGE = 97,
2301 WLAN_EID_TIME_ZONE = 98,
2302 WLAN_EID_DMS_REQUEST = 99,
2303 WLAN_EID_DMS_RESPONSE = 100,
2304 WLAN_EID_LINK_ID = 101,
2305 WLAN_EID_WAKEUP_SCHEDUL = 102,
2306 /* 103 reserved */
2307 WLAN_EID_CHAN_SWITCH_TIMING = 104,
2308 WLAN_EID_PTI_CONTROL = 105,
2309 WLAN_EID_PU_BUFFER_STATUS = 106,
2310 WLAN_EID_INTERWORKING = 107,
2311 WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
2312 WLAN_EID_EXPEDITED_BW_REQ = 109,
2313 WLAN_EID_QOS_MAP_SET = 110,
2314 WLAN_EID_ROAMING_CONSORTIUM = 111,
2315 WLAN_EID_EMERGENCY_ALERT = 112,
2316 WLAN_EID_MESH_CONFIG = 113,
2317 WLAN_EID_MESH_ID = 114,
2318 WLAN_EID_LINK_METRIC_REPORT = 115,
2319 WLAN_EID_CONGESTION_NOTIFICATION = 116,
2320 WLAN_EID_PEER_MGMT = 117,
2321 WLAN_EID_CHAN_SWITCH_PARAM = 118,
2322 WLAN_EID_MESH_AWAKE_WINDOW = 119,
2323 WLAN_EID_BEACON_TIMING = 120,
2324 WLAN_EID_MCCAOP_SETUP_REQ = 121,
2325 WLAN_EID_MCCAOP_SETUP_RESP = 122,
2326 WLAN_EID_MCCAOP_ADVERT = 123,
2327 WLAN_EID_MCCAOP_TEARDOWN = 124,
2328 WLAN_EID_GANN = 125,
2329 WLAN_EID_RANN = 126,
2330 WLAN_EID_EXT_CAPABILITY = 127,
2331 /* 128, 129 reserved for Agere */
2332 WLAN_EID_PREQ = 130,
2333 WLAN_EID_PREP = 131,
2334 WLAN_EID_PERR = 132,
2335 /* 133-136 reserved for Cisco */
2336 WLAN_EID_PXU = 137,
2337 WLAN_EID_PXUC = 138,
2338 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
2339 WLAN_EID_MIC = 140,
2340 WLAN_EID_DESTINATION_URI = 141,
2341 WLAN_EID_UAPSD_COEX = 142,
2342 WLAN_EID_WAKEUP_SCHEDULE = 143,
2343 WLAN_EID_EXT_SCHEDULE = 144,
2344 WLAN_EID_STA_AVAILABILITY = 145,
2345 WLAN_EID_DMG_TSPEC = 146,
2346 WLAN_EID_DMG_AT = 147,
2347 WLAN_EID_DMG_CAP = 148,
2348 /* 149 reserved for Cisco */
2349 WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
2350 WLAN_EID_DMG_OPERATION = 151,
2351 WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
2352 WLAN_EID_DMG_BEAM_REFINEMENT = 153,
2353 WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
2354 /* 155-156 reserved for Cisco */
2355 WLAN_EID_AWAKE_WINDOW = 157,
2356 WLAN_EID_MULTI_BAND = 158,
2357 WLAN_EID_ADDBA_EXT = 159,
2358 WLAN_EID_NEXT_PCP_LIST = 160,
2359 WLAN_EID_PCP_HANDOVER = 161,
2360 WLAN_EID_DMG_LINK_MARGIN = 162,
2361 WLAN_EID_SWITCHING_STREAM = 163,
2362 WLAN_EID_SESSION_TRANSITION = 164,
2363 WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
2364 WLAN_EID_CLUSTER_REPORT = 166,
2365 WLAN_EID_RELAY_CAP = 167,
2366 WLAN_EID_RELAY_XFER_PARAM_SET = 168,
2367 WLAN_EID_BEAM_LINK_MAINT = 169,
2368 WLAN_EID_MULTIPLE_MAC_ADDR = 170,
2369 WLAN_EID_U_PID = 171,
2370 WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
2371 /* 173 reserved for Symbol */
2372 WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
2373 WLAN_EID_QUIET_PERIOD_REQ = 175,
2374 /* 176 reserved for Symbol */
2375 WLAN_EID_QUIET_PERIOD_RESP = 177,
2376 /* 178-179 reserved for Symbol */
2377 /* 180 reserved for ISO/IEC 20011 */
2378 WLAN_EID_EPAC_POLICY = 182,
2379 WLAN_EID_CLISTER_TIME_OFF = 183,
2380 WLAN_EID_INTER_AC_PRIO = 184,
2381 WLAN_EID_SCS_DESCRIPTOR = 185,
2382 WLAN_EID_QLOAD_REPORT = 186,
2383 WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
2384 WLAN_EID_HL_STREAM_ID = 188,
2385 WLAN_EID_GCR_GROUP_ADDR = 189,
2386 WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
2387 WLAN_EID_VHT_CAPABILITY = 191,
2388 WLAN_EID_VHT_OPERATION = 192,
2389 WLAN_EID_EXTENDED_BSS_LOAD = 193,
2390 WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
2391 WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
2392 WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
2393 WLAN_EID_AID = 197,
2394 WLAN_EID_QUIET_CHANNEL = 198,
2395 WLAN_EID_OPMODE_NOTIF = 199,
2396
2397 WLAN_EID_VENDOR_SPECIFIC = 221,
2398 WLAN_EID_QOS_PARAMETER = 222,
2399 WLAN_EID_CAG_NUMBER = 237,
2400 WLAN_EID_AP_CSN = 239,
2401 WLAN_EID_FILS_INDICATION = 240,
2402 WLAN_EID_DILS = 241,
2403 WLAN_EID_FRAGMENT = 242,
2404 WLAN_EID_EXTENSION = 255
2405 };
2406
2407 /* Element ID Extensions for Element ID 255 */
2408 enum ieee80211_eid_ext {
2409 WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
2410 WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
2411 WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
2412 WLAN_EID_EXT_FILS_SESSION = 4,
2413 WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
2414 WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
2415 WLAN_EID_EXT_KEY_DELIVERY = 7,
2416 WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
2417 WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
2418 WLAN_EID_EXT_FILS_NONCE = 13,
2419 WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
2420 WLAN_EID_EXT_HE_CAPABILITY = 35,
2421 WLAN_EID_EXT_HE_OPERATION = 36,
2422 WLAN_EID_EXT_UORA = 37,
2423 WLAN_EID_EXT_HE_MU_EDCA = 38,
2424 };
2425
2426 /* Action category code */
2427 enum ieee80211_category {
2428 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
2429 WLAN_CATEGORY_QOS = 1,
2430 WLAN_CATEGORY_DLS = 2,
2431 WLAN_CATEGORY_BACK = 3,
2432 WLAN_CATEGORY_PUBLIC = 4,
2433 WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
2434 WLAN_CATEGORY_HT = 7,
2435 WLAN_CATEGORY_SA_QUERY = 8,
2436 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
2437 WLAN_CATEGORY_WNM = 10,
2438 WLAN_CATEGORY_WNM_UNPROTECTED = 11,
2439 WLAN_CATEGORY_TDLS = 12,
2440 WLAN_CATEGORY_MESH_ACTION = 13,
2441 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
2442 WLAN_CATEGORY_SELF_PROTECTED = 15,
2443 WLAN_CATEGORY_DMG = 16,
2444 WLAN_CATEGORY_WMM = 17,
2445 WLAN_CATEGORY_FST = 18,
2446 WLAN_CATEGORY_UNPROT_DMG = 20,
2447 WLAN_CATEGORY_VHT = 21,
2448 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
2449 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
2450 };
2451
2452 /* SPECTRUM_MGMT action code */
2453 enum ieee80211_spectrum_mgmt_actioncode {
2454 WLAN_ACTION_SPCT_MSR_REQ = 0,
2455 WLAN_ACTION_SPCT_MSR_RPRT = 1,
2456 WLAN_ACTION_SPCT_TPC_REQ = 2,
2457 WLAN_ACTION_SPCT_TPC_RPRT = 3,
2458 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2459 };
2460
2461 /* HT action codes */
2462 enum ieee80211_ht_actioncode {
2463 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2464 WLAN_HT_ACTION_SMPS = 1,
2465 WLAN_HT_ACTION_PSMP = 2,
2466 WLAN_HT_ACTION_PCO_PHASE = 3,
2467 WLAN_HT_ACTION_CSI = 4,
2468 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2469 WLAN_HT_ACTION_COMPRESSED_BF = 6,
2470 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2471 };
2472
2473 /* VHT action codes */
2474 enum ieee80211_vht_actioncode {
2475 WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2476 WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2477 WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2478 };
2479
2480 /* Self Protected Action codes */
2481 enum ieee80211_self_protected_actioncode {
2482 WLAN_SP_RESERVED = 0,
2483 WLAN_SP_MESH_PEERING_OPEN = 1,
2484 WLAN_SP_MESH_PEERING_CONFIRM = 2,
2485 WLAN_SP_MESH_PEERING_CLOSE = 3,
2486 WLAN_SP_MGK_INFORM = 4,
2487 WLAN_SP_MGK_ACK = 5,
2488 };
2489
2490 /* Mesh action codes */
2491 enum ieee80211_mesh_actioncode {
2492 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2493 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2494 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2495 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2496 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2497 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2498 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2499 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2500 WLAN_MESH_ACTION_MCCA_TEARDOWN,
2501 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2502 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2503 };
2504
2505 /* Security key length */
2506 enum ieee80211_key_len {
2507 WLAN_KEY_LEN_WEP40 = 5,
2508 WLAN_KEY_LEN_WEP104 = 13,
2509 WLAN_KEY_LEN_CCMP = 16,
2510 WLAN_KEY_LEN_CCMP_256 = 32,
2511 WLAN_KEY_LEN_TKIP = 32,
2512 WLAN_KEY_LEN_AES_CMAC = 16,
2513 WLAN_KEY_LEN_SMS4 = 32,
2514 WLAN_KEY_LEN_GCMP = 16,
2515 WLAN_KEY_LEN_GCMP_256 = 32,
2516 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2517 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2518 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2519 };
2520
2521 #define IEEE80211_WEP_IV_LEN 4
2522 #define IEEE80211_WEP_ICV_LEN 4
2523 #define IEEE80211_CCMP_HDR_LEN 8
2524 #define IEEE80211_CCMP_MIC_LEN 8
2525 #define IEEE80211_CCMP_PN_LEN 6
2526 #define IEEE80211_CCMP_256_HDR_LEN 8
2527 #define IEEE80211_CCMP_256_MIC_LEN 16
2528 #define IEEE80211_CCMP_256_PN_LEN 6
2529 #define IEEE80211_TKIP_IV_LEN 8
2530 #define IEEE80211_TKIP_ICV_LEN 4
2531 #define IEEE80211_CMAC_PN_LEN 6
2532 #define IEEE80211_GMAC_PN_LEN 6
2533 #define IEEE80211_GCMP_HDR_LEN 8
2534 #define IEEE80211_GCMP_MIC_LEN 16
2535 #define IEEE80211_GCMP_PN_LEN 6
2536
2537 #define FILS_NONCE_LEN 16
2538 #define FILS_MAX_KEK_LEN 64
2539
2540 #define FILS_ERP_MAX_USERNAME_LEN 16
2541 #define FILS_ERP_MAX_REALM_LEN 253
2542 #define FILS_ERP_MAX_RRK_LEN 64
2543
2544 #define PMK_MAX_LEN 64
2545
2546 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
2547 enum ieee80211_pub_actioncode {
2548 WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
2549 WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
2550 WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
2551 WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
2552 WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2553 WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
2554 WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
2555 WLAN_PUB_ACTION_MSMT_PILOT = 7,
2556 WLAN_PUB_ACTION_DSE_PC = 8,
2557 WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
2558 WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
2559 WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
2560 WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
2561 WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
2562 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2563 WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
2564 WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
2565 WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
2566 WLAN_PUB_ACTION_QMF_POLICY = 18,
2567 WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
2568 WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
2569 WLAN_PUB_ACTION_QLOAD_REPORT = 21,
2570 WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
2571 WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
2572 WLAN_PUB_ACTION_PUBLIC_KEY = 24,
2573 WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
2574 WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
2575 WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
2576 WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
2577 WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
2578 WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
2579 WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
2580 WLAN_PUB_ACTION_FTM_REQUEST = 32,
2581 WLAN_PUB_ACTION_FTM = 33,
2582 WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
2583 };
2584
2585 /* TDLS action codes */
2586 enum ieee80211_tdls_actioncode {
2587 WLAN_TDLS_SETUP_REQUEST = 0,
2588 WLAN_TDLS_SETUP_RESPONSE = 1,
2589 WLAN_TDLS_SETUP_CONFIRM = 2,
2590 WLAN_TDLS_TEARDOWN = 3,
2591 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2592 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2593 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2594 WLAN_TDLS_PEER_PSM_REQUEST = 7,
2595 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2596 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2597 WLAN_TDLS_DISCOVERY_REQUEST = 10,
2598 };
2599
2600 /* Extended Channel Switching capability to be set in the 1st byte of
2601 * the @WLAN_EID_EXT_CAPABILITY information element
2602 */
2603 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2)
2604
2605 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2606 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA BIT(4)
2607 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM BIT(5)
2608 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH BIT(6)
2609
2610 /* Interworking capabilities are set in 7th bit of 4th byte of the
2611 * @WLAN_EID_EXT_CAPABILITY information element
2612 */
2613 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED BIT(7)
2614
2615 /*
2616 * TDLS capabililites to be enabled in the 5th byte of the
2617 * @WLAN_EID_EXT_CAPABILITY information element
2618 */
2619 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
2620 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
2621 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED BIT(7)
2622
2623 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED BIT(5)
2624 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(6)
2625
2626 /* Defines the maximal number of MSDUs in an A-MSDU. */
2627 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(7)
2628 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(0)
2629
2630 /*
2631 * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2632 * information element
2633 */
2634 #define WLAN_EXT_CAPA9_FTM_INITIATOR BIT(7)
2635
2636 /* TDLS specific payload type in the LLC/SNAP header */
2637 #define WLAN_TDLS_SNAP_RFTYPE 0x2
2638
2639 /* BSS Coex IE information field bits */
2640 #define WLAN_BSS_COEX_INFORMATION_REQUEST BIT(0)
2641
2642 /**
2643 * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
2644 *
2645 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2646 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2647 * that will be specified in a vendor specific information element
2648 */
2649 enum ieee80211_mesh_sync_method {
2650 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2651 IEEE80211_SYNC_METHOD_VENDOR = 255,
2652 };
2653
2654 /**
2655 * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
2656 *
2657 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2658 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2659 * be specified in a vendor specific information element
2660 */
2661 enum ieee80211_mesh_path_protocol {
2662 IEEE80211_PATH_PROTOCOL_HWMP = 1,
2663 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2664 };
2665
2666 /**
2667 * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
2668 *
2669 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2670 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2671 * specified in a vendor specific information element
2672 */
2673 enum ieee80211_mesh_path_metric {
2674 IEEE80211_PATH_METRIC_AIRTIME = 1,
2675 IEEE80211_PATH_METRIC_VENDOR = 255,
2676 };
2677
2678 /**
2679 * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2680 *
2681 * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2682 *
2683 * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2684 * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2685 * this value
2686 * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2687 * the proactive PREQ with proactive PREP subfield set to 0
2688 * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2689 * supports the proactive PREQ with proactive PREP subfield set to 1
2690 * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2691 * the proactive RANN
2692 */
2693 enum ieee80211_root_mode_identifier {
2694 IEEE80211_ROOTMODE_NO_ROOT = 0,
2695 IEEE80211_ROOTMODE_ROOT = 1,
2696 IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2697 IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2698 IEEE80211_PROACTIVE_RANN = 4,
2699 };
2700
2701 /*
2702 * IEEE 802.11-2007 7.3.2.9 Country information element
2703 *
2704 * Minimum length is 8 octets, ie len must be evenly
2705 * divisible by 2
2706 */
2707
2708 /* Although the spec says 8 I'm seeing 6 in practice */
2709 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
2710
2711 /* The Country String field of the element shall be 3 octets in length */
2712 #define IEEE80211_COUNTRY_STRING_LEN 3
2713
2714 /*
2715 * For regulatory extension stuff see IEEE 802.11-2007
2716 * Annex I (page 1141) and Annex J (page 1147). Also
2717 * review 7.3.2.9.
2718 *
2719 * When dot11RegulatoryClassesRequired is true and the
2720 * first_channel/reg_extension_id is >= 201 then the IE
2721 * compromises of the 'ext' struct represented below:
2722 *
2723 * - Regulatory extension ID - when generating IE this just needs
2724 * to be monotonically increasing for each triplet passed in
2725 * the IE
2726 * - Regulatory class - index into set of rules
2727 * - Coverage class - index into air propagation time (Table 7-27),
2728 * in microseconds, you can compute the air propagation time from
2729 * the index by multiplying by 3, so index 10 yields a propagation
2730 * of 10 us. Valid values are 0-31, values 32-255 are not defined
2731 * yet. A value of 0 inicates air propagation of <= 1 us.
2732 *
2733 * See also Table I.2 for Emission limit sets and table
2734 * I.3 for Behavior limit sets. Table J.1 indicates how to map
2735 * a reg_class to an emission limit set and behavior limit set.
2736 */
2737 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2738
2739 /*
2740 * Channels numbers in the IE must be monotonically increasing
2741 * if dot11RegulatoryClassesRequired is not true.
2742 *
2743 * If dot11RegulatoryClassesRequired is true consecutive
2744 * subband triplets following a regulatory triplet shall
2745 * have monotonically increasing first_channel number fields.
2746 *
2747 * Channel numbers shall not overlap.
2748 *
2749 * Note that max_power is signed.
2750 */
2751 struct ieee80211_country_ie_triplet {
2752 union {
2753 struct {
2754 u8 first_channel;
2755 u8 num_channels;
2756 s8 max_power;
2757 } __packed chans;
2758 struct {
2759 u8 reg_extension_id;
2760 u8 reg_class;
2761 u8 coverage_class;
2762 } __packed ext;
2763 };
2764 } __packed;
2765
2766 enum ieee80211_timeout_interval_type {
2767 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2768 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2769 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2770 };
2771
2772 /**
2773 * struct ieee80211_timeout_interval_ie - Timeout Interval element
2774 * @type: type, see &enum ieee80211_timeout_interval_type
2775 * @value: timeout interval value
2776 */
2777 struct ieee80211_timeout_interval_ie {
2778 u8 type;
2779 __le32 value;
2780 } __packed;
2781
2782 /**
2783 * enum ieee80211_idle_options - BSS idle options
2784 * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
2785 * protected frame to the AP to reset the idle timer at the AP for
2786 * the station.
2787 */
2788 enum ieee80211_idle_options {
2789 WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
2790 };
2791
2792 /**
2793 * struct ieee80211_bss_max_idle_period_ie
2794 *
2795 * This structure refers to "BSS Max idle period element"
2796 *
2797 * @max_idle_period: indicates the time period during which a station can
2798 * refrain from transmitting frames to its associated AP without being
2799 * disassociated. In units of 1000 TUs.
2800 * @idle_options: indicates the options associated with the BSS idle capability
2801 * as specified in &enum ieee80211_idle_options.
2802 */
2803 struct ieee80211_bss_max_idle_period_ie {
2804 __le16 max_idle_period;
2805 u8 idle_options;
2806 } __packed;
2807
2808 /* BACK action code */
2809 enum ieee80211_back_actioncode {
2810 WLAN_ACTION_ADDBA_REQ = 0,
2811 WLAN_ACTION_ADDBA_RESP = 1,
2812 WLAN_ACTION_DELBA = 2,
2813 };
2814
2815 /* BACK (block-ack) parties */
2816 enum ieee80211_back_parties {
2817 WLAN_BACK_RECIPIENT = 0,
2818 WLAN_BACK_INITIATOR = 1,
2819 };
2820
2821 /* SA Query action */
2822 enum ieee80211_sa_query_action {
2823 WLAN_ACTION_SA_QUERY_REQUEST = 0,
2824 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2825 };
2826
2827
2828 #define SUITE(oui, id) (((oui) << 8) | (id))
2829
2830 /* cipher suite selectors */
2831 #define WLAN_CIPHER_SUITE_USE_GROUP SUITE(0x000FAC, 0)
2832 #define WLAN_CIPHER_SUITE_WEP40 SUITE(0x000FAC, 1)
2833 #define WLAN_CIPHER_SUITE_TKIP SUITE(0x000FAC, 2)
2834 /* reserved: SUITE(0x000FAC, 3) */
2835 #define WLAN_CIPHER_SUITE_CCMP SUITE(0x000FAC, 4)
2836 #define WLAN_CIPHER_SUITE_WEP104 SUITE(0x000FAC, 5)
2837 #define WLAN_CIPHER_SUITE_AES_CMAC SUITE(0x000FAC, 6)
2838 #define WLAN_CIPHER_SUITE_GCMP SUITE(0x000FAC, 8)
2839 #define WLAN_CIPHER_SUITE_GCMP_256 SUITE(0x000FAC, 9)
2840 #define WLAN_CIPHER_SUITE_CCMP_256 SUITE(0x000FAC, 10)
2841 #define WLAN_CIPHER_SUITE_BIP_GMAC_128 SUITE(0x000FAC, 11)
2842 #define WLAN_CIPHER_SUITE_BIP_GMAC_256 SUITE(0x000FAC, 12)
2843 #define WLAN_CIPHER_SUITE_BIP_CMAC_256 SUITE(0x000FAC, 13)
2844
2845 #define WLAN_CIPHER_SUITE_SMS4 SUITE(0x001472, 1)
2846
2847 /* AKM suite selectors */
2848 #define WLAN_AKM_SUITE_8021X SUITE(0x000FAC, 1)
2849 #define WLAN_AKM_SUITE_PSK SUITE(0x000FAC, 2)
2850 #define WLAN_AKM_SUITE_FT_8021X SUITE(0x000FAC, 3)
2851 #define WLAN_AKM_SUITE_FT_PSK SUITE(0x000FAC, 4)
2852 #define WLAN_AKM_SUITE_8021X_SHA256 SUITE(0x000FAC, 5)
2853 #define WLAN_AKM_SUITE_PSK_SHA256 SUITE(0x000FAC, 6)
2854 #define WLAN_AKM_SUITE_TDLS SUITE(0x000FAC, 7)
2855 #define WLAN_AKM_SUITE_SAE SUITE(0x000FAC, 8)
2856 #define WLAN_AKM_SUITE_FT_OVER_SAE SUITE(0x000FAC, 9)
2857 #define WLAN_AKM_SUITE_8021X_SUITE_B SUITE(0x000FAC, 11)
2858 #define WLAN_AKM_SUITE_8021X_SUITE_B_192 SUITE(0x000FAC, 12)
2859 #define WLAN_AKM_SUITE_FILS_SHA256 SUITE(0x000FAC, 14)
2860 #define WLAN_AKM_SUITE_FILS_SHA384 SUITE(0x000FAC, 15)
2861 #define WLAN_AKM_SUITE_FT_FILS_SHA256 SUITE(0x000FAC, 16)
2862 #define WLAN_AKM_SUITE_FT_FILS_SHA384 SUITE(0x000FAC, 17)
2863
2864 #define WLAN_MAX_KEY_LEN 32
2865
2866 #define WLAN_PMK_NAME_LEN 16
2867 #define WLAN_PMKID_LEN 16
2868 #define WLAN_PMK_LEN_EAP_LEAP 16
2869 #define WLAN_PMK_LEN 32
2870 #define WLAN_PMK_LEN_SUITE_B_192 48
2871
2872 #define WLAN_OUI_WFA 0x506f9a
2873 #define WLAN_OUI_TYPE_WFA_P2P 9
2874 #define WLAN_OUI_MICROSOFT 0x0050f2
2875 #define WLAN_OUI_TYPE_MICROSOFT_WPA 1
2876 #define WLAN_OUI_TYPE_MICROSOFT_WMM 2
2877 #define WLAN_OUI_TYPE_MICROSOFT_WPS 4
2878 #define WLAN_OUI_TYPE_MICROSOFT_TPC 8
2879
2880 /*
2881 * WMM/802.11e Tspec Element
2882 */
2883 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
2884 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
2885
2886 enum ieee80211_tspec_status_code {
2887 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2888 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2889 };
2890
2891 struct ieee80211_tspec_ie {
2892 u8 element_id;
2893 u8 len;
2894 u8 oui[3];
2895 u8 oui_type;
2896 u8 oui_subtype;
2897 u8 version;
2898 __le16 tsinfo;
2899 u8 tsinfo_resvd;
2900 __le16 nominal_msdu;
2901 __le16 max_msdu;
2902 __le32 min_service_int;
2903 __le32 max_service_int;
2904 __le32 inactivity_int;
2905 __le32 suspension_int;
2906 __le32 service_start_time;
2907 __le32 min_data_rate;
2908 __le32 mean_data_rate;
2909 __le32 peak_data_rate;
2910 __le32 max_burst_size;
2911 __le32 delay_bound;
2912 __le32 min_phy_rate;
2913 __le16 sba;
2914 __le16 medium_time;
2915 } __packed;
2916
2917 /**
2918 * ieee80211_get_qos_ctl - get pointer to qos control bytes
2919 * @hdr: the frame
2920 *
2921 * The qos ctrl bytes come after the frame_control, duration, seq_num
2922 * and 3 or 4 addresses of length ETH_ALEN.
2923 * 3 addr: 2 + 2 + 2 + 3*6 = 24
2924 * 4 addr: 2 + 2 + 2 + 4*6 = 30
2925 */
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)2926 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2927 {
2928 if (ieee80211_has_a4(hdr->frame_control))
2929 return (u8 *)hdr + 30;
2930 else
2931 return (u8 *)hdr + 24;
2932 }
2933
2934 /**
2935 * ieee80211_get_tid - get qos TID
2936 * @hdr: the frame
2937 */
ieee80211_get_tid(struct ieee80211_hdr * hdr)2938 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
2939 {
2940 u8 *qc = ieee80211_get_qos_ctl(hdr);
2941
2942 return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2943 }
2944
2945 /**
2946 * ieee80211_get_SA - get pointer to SA
2947 * @hdr: the frame
2948 *
2949 * Given an 802.11 frame, this function returns the offset
2950 * to the source address (SA). It does not verify that the
2951 * header is long enough to contain the address, and the
2952 * header must be long enough to contain the frame control
2953 * field.
2954 */
ieee80211_get_SA(struct ieee80211_hdr * hdr)2955 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2956 {
2957 if (ieee80211_has_a4(hdr->frame_control))
2958 return hdr->addr4;
2959 if (ieee80211_has_fromds(hdr->frame_control))
2960 return hdr->addr3;
2961 return hdr->addr2;
2962 }
2963
2964 /**
2965 * ieee80211_get_DA - get pointer to DA
2966 * @hdr: the frame
2967 *
2968 * Given an 802.11 frame, this function returns the offset
2969 * to the destination address (DA). It does not verify that
2970 * the header is long enough to contain the address, and the
2971 * header must be long enough to contain the frame control
2972 * field.
2973 */
ieee80211_get_DA(struct ieee80211_hdr * hdr)2974 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2975 {
2976 if (ieee80211_has_tods(hdr->frame_control))
2977 return hdr->addr3;
2978 else
2979 return hdr->addr1;
2980 }
2981
2982 /**
2983 * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2984 * @hdr: the frame (buffer must include at least the first octet of payload)
2985 */
_ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr * hdr)2986 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2987 {
2988 if (ieee80211_is_disassoc(hdr->frame_control) ||
2989 ieee80211_is_deauth(hdr->frame_control))
2990 return true;
2991
2992 if (ieee80211_is_action(hdr->frame_control)) {
2993 u8 *category;
2994
2995 /*
2996 * Action frames, excluding Public Action frames, are Robust
2997 * Management Frames. However, if we are looking at a Protected
2998 * frame, skip the check since the data may be encrypted and
2999 * the frame has already been found to be a Robust Management
3000 * Frame (by the other end).
3001 */
3002 if (ieee80211_has_protected(hdr->frame_control))
3003 return true;
3004 category = ((u8 *) hdr) + 24;
3005 return *category != WLAN_CATEGORY_PUBLIC &&
3006 *category != WLAN_CATEGORY_HT &&
3007 *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
3008 *category != WLAN_CATEGORY_SELF_PROTECTED &&
3009 *category != WLAN_CATEGORY_UNPROT_DMG &&
3010 *category != WLAN_CATEGORY_VHT &&
3011 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
3012 }
3013
3014 return false;
3015 }
3016
3017 /**
3018 * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
3019 * @skb: the skb containing the frame, length will be checked
3020 */
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)3021 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
3022 {
3023 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3024 return false;
3025 return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
3026 }
3027
3028 /**
3029 * ieee80211_is_public_action - check if frame is a public action frame
3030 * @hdr: the frame
3031 * @len: length of the frame
3032 */
ieee80211_is_public_action(struct ieee80211_hdr * hdr,size_t len)3033 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
3034 size_t len)
3035 {
3036 struct ieee80211_mgmt *mgmt = (void *)hdr;
3037
3038 if (len < IEEE80211_MIN_ACTION_SIZE)
3039 return false;
3040 if (!ieee80211_is_action(hdr->frame_control))
3041 return false;
3042 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
3043 }
3044
3045 /**
3046 * _ieee80211_is_group_privacy_action - check if frame is a group addressed
3047 * privacy action frame
3048 * @hdr: the frame
3049 */
_ieee80211_is_group_privacy_action(struct ieee80211_hdr * hdr)3050 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
3051 {
3052 struct ieee80211_mgmt *mgmt = (void *)hdr;
3053
3054 if (!ieee80211_is_action(hdr->frame_control) ||
3055 !is_multicast_ether_addr(hdr->addr1))
3056 return false;
3057
3058 return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
3059 mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
3060 }
3061
3062 /**
3063 * ieee80211_is_group_privacy_action - check if frame is a group addressed
3064 * privacy action frame
3065 * @skb: the skb containing the frame, length will be checked
3066 */
ieee80211_is_group_privacy_action(struct sk_buff * skb)3067 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
3068 {
3069 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3070 return false;
3071 return _ieee80211_is_group_privacy_action((void *)skb->data);
3072 }
3073
3074 /**
3075 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
3076 * @tu: the TUs
3077 */
ieee80211_tu_to_usec(unsigned long tu)3078 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
3079 {
3080 return 1024 * tu;
3081 }
3082
3083 /**
3084 * ieee80211_check_tim - check if AID bit is set in TIM
3085 * @tim: the TIM IE
3086 * @tim_len: length of the TIM IE
3087 * @aid: the AID to look for
3088 */
ieee80211_check_tim(const struct ieee80211_tim_ie * tim,u8 tim_len,u16 aid)3089 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
3090 u8 tim_len, u16 aid)
3091 {
3092 u8 mask;
3093 u8 index, indexn1, indexn2;
3094
3095 if (unlikely(!tim || tim_len < sizeof(*tim)))
3096 return false;
3097
3098 aid &= 0x3fff;
3099 index = aid / 8;
3100 mask = 1 << (aid & 7);
3101
3102 indexn1 = tim->bitmap_ctrl & 0xfe;
3103 indexn2 = tim_len + indexn1 - 4;
3104
3105 if (index < indexn1 || index > indexn2)
3106 return false;
3107
3108 index -= indexn1;
3109
3110 return !!(tim->virtual_map[index] & mask);
3111 }
3112
3113 /**
3114 * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
3115 * @skb: the skb containing the frame, length will not be checked
3116 * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
3117 *
3118 * This function assumes the frame is a data frame, and that the network header
3119 * is in the correct place.
3120 */
ieee80211_get_tdls_action(struct sk_buff * skb,u32 hdr_size)3121 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
3122 {
3123 if (!skb_is_nonlinear(skb) &&
3124 skb->len > (skb_network_offset(skb) + 2)) {
3125 /* Point to where the indication of TDLS should start */
3126 const u8 *tdls_data = skb_network_header(skb) - 2;
3127
3128 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
3129 tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
3130 tdls_data[3] == WLAN_CATEGORY_TDLS)
3131 return tdls_data[4];
3132 }
3133
3134 return -1;
3135 }
3136
3137 /* convert time units */
3138 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
3139 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
3140
3141 /**
3142 * ieee80211_action_contains_tpc - checks if the frame contains TPC element
3143 * @skb: the skb containing the frame, length will be checked
3144 *
3145 * This function checks if it's either TPC report action frame or Link
3146 * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
3147 * and 8.5.7.5 accordingly.
3148 */
ieee80211_action_contains_tpc(struct sk_buff * skb)3149 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
3150 {
3151 struct ieee80211_mgmt *mgmt = (void *)skb->data;
3152
3153 if (!ieee80211_is_action(mgmt->frame_control))
3154 return false;
3155
3156 if (skb->len < IEEE80211_MIN_ACTION_SIZE +
3157 sizeof(mgmt->u.action.u.tpc_report))
3158 return false;
3159
3160 /*
3161 * TPC report - check that:
3162 * category = 0 (Spectrum Management) or 5 (Radio Measurement)
3163 * spectrum management action = 3 (TPC/Link Measurement report)
3164 * TPC report EID = 35
3165 * TPC report element length = 2
3166 *
3167 * The spectrum management's tpc_report struct is used here both for
3168 * parsing tpc_report and radio measurement's link measurement report
3169 * frame, since the relevant part is identical in both frames.
3170 */
3171 if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
3172 mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
3173 return false;
3174
3175 /* both spectrum mgmt and link measurement have same action code */
3176 if (mgmt->u.action.u.tpc_report.action_code !=
3177 WLAN_ACTION_SPCT_TPC_RPRT)
3178 return false;
3179
3180 if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
3181 mgmt->u.action.u.tpc_report.tpc_elem_length !=
3182 sizeof(struct ieee80211_tpc_report_ie))
3183 return false;
3184
3185 return true;
3186 }
3187
3188 #endif /* LINUX_IEEE80211_H */
3189
