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_any_nullfunc - check if frame is regular or QoS nullfunc frame
627 * @fc: frame control bytes in little-endian byteorder
628 */
ieee80211_is_any_nullfunc(__le16 fc)629 static inline bool ieee80211_is_any_nullfunc(__le16 fc)
630 {
631 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
632 }
633
634 /**
635 * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
636 * @fc: frame control field in little-endian byteorder
637 */
ieee80211_is_bufferable_mmpdu(__le16 fc)638 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
639 {
640 /* IEEE 802.11-2012, definition of "bufferable management frame";
641 * note that this ignores the IBSS special case. */
642 return ieee80211_is_mgmt(fc) &&
643 (ieee80211_is_action(fc) ||
644 ieee80211_is_disassoc(fc) ||
645 ieee80211_is_deauth(fc));
646 }
647
648 /**
649 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
650 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
651 */
ieee80211_is_first_frag(__le16 seq_ctrl)652 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
653 {
654 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
655 }
656
657 /**
658 * ieee80211_is_frag - check if a frame is a fragment
659 * @hdr: 802.11 header of the frame
660 */
ieee80211_is_frag(struct ieee80211_hdr * hdr)661 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
662 {
663 return ieee80211_has_morefrags(hdr->frame_control) ||
664 hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
665 }
666
667 struct ieee80211s_hdr {
668 u8 flags;
669 u8 ttl;
670 __le32 seqnum;
671 u8 eaddr1[ETH_ALEN];
672 u8 eaddr2[ETH_ALEN];
673 } __packed __aligned(2);
674
675 /* Mesh flags */
676 #define MESH_FLAGS_AE_A4 0x1
677 #define MESH_FLAGS_AE_A5_A6 0x2
678 #define MESH_FLAGS_AE 0x3
679 #define MESH_FLAGS_PS_DEEP 0x4
680
681 /**
682 * enum ieee80211_preq_flags - mesh PREQ element flags
683 *
684 * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
685 */
686 enum ieee80211_preq_flags {
687 IEEE80211_PREQ_PROACTIVE_PREP_FLAG = 1<<2,
688 };
689
690 /**
691 * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
692 *
693 * @IEEE80211_PREQ_TO_FLAG: target only subfield
694 * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
695 */
696 enum ieee80211_preq_target_flags {
697 IEEE80211_PREQ_TO_FLAG = 1<<0,
698 IEEE80211_PREQ_USN_FLAG = 1<<2,
699 };
700
701 /**
702 * struct ieee80211_quiet_ie
703 *
704 * This structure refers to "Quiet information element"
705 */
706 struct ieee80211_quiet_ie {
707 u8 count;
708 u8 period;
709 __le16 duration;
710 __le16 offset;
711 } __packed;
712
713 /**
714 * struct ieee80211_msrment_ie
715 *
716 * This structure refers to "Measurement Request/Report information element"
717 */
718 struct ieee80211_msrment_ie {
719 u8 token;
720 u8 mode;
721 u8 type;
722 u8 request[0];
723 } __packed;
724
725 /**
726 * struct ieee80211_channel_sw_ie
727 *
728 * This structure refers to "Channel Switch Announcement information element"
729 */
730 struct ieee80211_channel_sw_ie {
731 u8 mode;
732 u8 new_ch_num;
733 u8 count;
734 } __packed;
735
736 /**
737 * struct ieee80211_ext_chansw_ie
738 *
739 * This structure represents the "Extended Channel Switch Announcement element"
740 */
741 struct ieee80211_ext_chansw_ie {
742 u8 mode;
743 u8 new_operating_class;
744 u8 new_ch_num;
745 u8 count;
746 } __packed;
747
748 /**
749 * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
750 * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
751 * values here
752 * This structure represents the "Secondary Channel Offset element"
753 */
754 struct ieee80211_sec_chan_offs_ie {
755 u8 sec_chan_offs;
756 } __packed;
757
758 /**
759 * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
760 *
761 * This structure represents the "Mesh Channel Switch Paramters element"
762 */
763 struct ieee80211_mesh_chansw_params_ie {
764 u8 mesh_ttl;
765 u8 mesh_flags;
766 __le16 mesh_reason;
767 __le16 mesh_pre_value;
768 } __packed;
769
770 /**
771 * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
772 */
773 struct ieee80211_wide_bw_chansw_ie {
774 u8 new_channel_width;
775 u8 new_center_freq_seg0, new_center_freq_seg1;
776 } __packed;
777
778 /**
779 * struct ieee80211_tim
780 *
781 * This structure refers to "Traffic Indication Map information element"
782 */
783 struct ieee80211_tim_ie {
784 u8 dtim_count;
785 u8 dtim_period;
786 u8 bitmap_ctrl;
787 /* variable size: 1 - 251 bytes */
788 u8 virtual_map[1];
789 } __packed;
790
791 /**
792 * struct ieee80211_meshconf_ie
793 *
794 * This structure refers to "Mesh Configuration information element"
795 */
796 struct ieee80211_meshconf_ie {
797 u8 meshconf_psel;
798 u8 meshconf_pmetric;
799 u8 meshconf_congest;
800 u8 meshconf_synch;
801 u8 meshconf_auth;
802 u8 meshconf_form;
803 u8 meshconf_cap;
804 } __packed;
805
806 /**
807 * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
808 *
809 * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
810 * additional mesh peerings with other mesh STAs
811 * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
812 * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
813 * is ongoing
814 * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
815 * neighbors in deep sleep mode
816 */
817 enum mesh_config_capab_flags {
818 IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS = 0x01,
819 IEEE80211_MESHCONF_CAPAB_FORWARDING = 0x08,
820 IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING = 0x20,
821 IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL = 0x40,
822 };
823
824 /**
825 * mesh channel switch parameters element's flag indicator
826 *
827 */
828 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
829 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
830 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
831
832 /**
833 * struct ieee80211_rann_ie
834 *
835 * This structure refers to "Root Announcement information element"
836 */
837 struct ieee80211_rann_ie {
838 u8 rann_flags;
839 u8 rann_hopcount;
840 u8 rann_ttl;
841 u8 rann_addr[ETH_ALEN];
842 __le32 rann_seq;
843 __le32 rann_interval;
844 __le32 rann_metric;
845 } __packed;
846
847 enum ieee80211_rann_flags {
848 RANN_FLAG_IS_GATE = 1 << 0,
849 };
850
851 enum ieee80211_ht_chanwidth_values {
852 IEEE80211_HT_CHANWIDTH_20MHZ = 0,
853 IEEE80211_HT_CHANWIDTH_ANY = 1,
854 };
855
856 /**
857 * enum ieee80211_opmode_bits - VHT operating mode field bits
858 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
859 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
860 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
861 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
862 * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
863 * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
864 * (the NSS value is the value of this field + 1)
865 * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
866 * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
867 * using a beamforming steering matrix
868 */
869 enum ieee80211_vht_opmode_bits {
870 IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK = 3,
871 IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ = 0,
872 IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ = 1,
873 IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ = 2,
874 IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
875 IEEE80211_OPMODE_NOTIF_RX_NSS_MASK = 0x70,
876 IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT = 4,
877 IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF = 0x80,
878 };
879
880 #define WLAN_SA_QUERY_TR_ID_LEN 2
881 #define WLAN_MEMBERSHIP_LEN 8
882 #define WLAN_USER_POSITION_LEN 16
883
884 /**
885 * struct ieee80211_tpc_report_ie
886 *
887 * This structure refers to "TPC Report element"
888 */
889 struct ieee80211_tpc_report_ie {
890 u8 tx_power;
891 u8 link_margin;
892 } __packed;
893
894 struct ieee80211_mgmt {
895 __le16 frame_control;
896 __le16 duration;
897 u8 da[ETH_ALEN];
898 u8 sa[ETH_ALEN];
899 u8 bssid[ETH_ALEN];
900 __le16 seq_ctrl;
901 union {
902 struct {
903 __le16 auth_alg;
904 __le16 auth_transaction;
905 __le16 status_code;
906 /* possibly followed by Challenge text */
907 u8 variable[0];
908 } __packed auth;
909 struct {
910 __le16 reason_code;
911 } __packed deauth;
912 struct {
913 __le16 capab_info;
914 __le16 listen_interval;
915 /* followed by SSID and Supported rates */
916 u8 variable[0];
917 } __packed assoc_req;
918 struct {
919 __le16 capab_info;
920 __le16 status_code;
921 __le16 aid;
922 /* followed by Supported rates */
923 u8 variable[0];
924 } __packed assoc_resp, reassoc_resp;
925 struct {
926 __le16 capab_info;
927 __le16 listen_interval;
928 u8 current_ap[ETH_ALEN];
929 /* followed by SSID and Supported rates */
930 u8 variable[0];
931 } __packed reassoc_req;
932 struct {
933 __le16 reason_code;
934 } __packed disassoc;
935 struct {
936 __le64 timestamp;
937 __le16 beacon_int;
938 __le16 capab_info;
939 /* followed by some of SSID, Supported rates,
940 * FH Params, DS Params, CF Params, IBSS Params, TIM */
941 u8 variable[0];
942 } __packed beacon;
943 struct {
944 /* only variable items: SSID, Supported rates */
945 u8 variable[0];
946 } __packed probe_req;
947 struct {
948 __le64 timestamp;
949 __le16 beacon_int;
950 __le16 capab_info;
951 /* followed by some of SSID, Supported rates,
952 * FH Params, DS Params, CF Params, IBSS Params */
953 u8 variable[0];
954 } __packed probe_resp;
955 struct {
956 u8 category;
957 union {
958 struct {
959 u8 action_code;
960 u8 dialog_token;
961 u8 status_code;
962 u8 variable[0];
963 } __packed wme_action;
964 struct{
965 u8 action_code;
966 u8 variable[0];
967 } __packed chan_switch;
968 struct{
969 u8 action_code;
970 struct ieee80211_ext_chansw_ie data;
971 u8 variable[0];
972 } __packed ext_chan_switch;
973 struct{
974 u8 action_code;
975 u8 dialog_token;
976 u8 element_id;
977 u8 length;
978 struct ieee80211_msrment_ie msr_elem;
979 } __packed measurement;
980 struct{
981 u8 action_code;
982 u8 dialog_token;
983 __le16 capab;
984 __le16 timeout;
985 __le16 start_seq_num;
986 } __packed addba_req;
987 struct{
988 u8 action_code;
989 u8 dialog_token;
990 __le16 status;
991 __le16 capab;
992 __le16 timeout;
993 } __packed addba_resp;
994 struct{
995 u8 action_code;
996 __le16 params;
997 __le16 reason_code;
998 } __packed delba;
999 struct {
1000 u8 action_code;
1001 u8 variable[0];
1002 } __packed self_prot;
1003 struct{
1004 u8 action_code;
1005 u8 variable[0];
1006 } __packed mesh_action;
1007 struct {
1008 u8 action;
1009 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1010 } __packed sa_query;
1011 struct {
1012 u8 action;
1013 u8 smps_control;
1014 } __packed ht_smps;
1015 struct {
1016 u8 action_code;
1017 u8 chanwidth;
1018 } __packed ht_notify_cw;
1019 struct {
1020 u8 action_code;
1021 u8 dialog_token;
1022 __le16 capability;
1023 u8 variable[0];
1024 } __packed tdls_discover_resp;
1025 struct {
1026 u8 action_code;
1027 u8 operating_mode;
1028 } __packed vht_opmode_notif;
1029 struct {
1030 u8 action_code;
1031 u8 membership[WLAN_MEMBERSHIP_LEN];
1032 u8 position[WLAN_USER_POSITION_LEN];
1033 } __packed vht_group_notif;
1034 struct {
1035 u8 action_code;
1036 u8 dialog_token;
1037 u8 tpc_elem_id;
1038 u8 tpc_elem_length;
1039 struct ieee80211_tpc_report_ie tpc;
1040 } __packed tpc_report;
1041 struct {
1042 u8 action_code;
1043 u8 dialog_token;
1044 u8 follow_up;
1045 u8 tod[6];
1046 u8 toa[6];
1047 __le16 tod_error;
1048 __le16 toa_error;
1049 u8 variable[0];
1050 } __packed ftm;
1051 } u;
1052 } __packed action;
1053 } u;
1054 } __packed __aligned(2);
1055
1056 /* Supported rates membership selectors */
1057 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
1058 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1059
1060 /* mgmt header + 1 byte category code */
1061 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1062
1063
1064 /* Management MIC information element (IEEE 802.11w) */
1065 struct ieee80211_mmie {
1066 u8 element_id;
1067 u8 length;
1068 __le16 key_id;
1069 u8 sequence_number[6];
1070 u8 mic[8];
1071 } __packed;
1072
1073 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1074 struct ieee80211_mmie_16 {
1075 u8 element_id;
1076 u8 length;
1077 __le16 key_id;
1078 u8 sequence_number[6];
1079 u8 mic[16];
1080 } __packed;
1081
1082 struct ieee80211_vendor_ie {
1083 u8 element_id;
1084 u8 len;
1085 u8 oui[3];
1086 u8 oui_type;
1087 } __packed;
1088
1089 struct ieee80211_wmm_ac_param {
1090 u8 aci_aifsn; /* AIFSN, ACM, ACI */
1091 u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1092 __le16 txop_limit;
1093 } __packed;
1094
1095 struct ieee80211_wmm_param_ie {
1096 u8 element_id; /* Element ID: 221 (0xdd); */
1097 u8 len; /* Length: 24 */
1098 /* required fields for WMM version 1 */
1099 u8 oui[3]; /* 00:50:f2 */
1100 u8 oui_type; /* 2 */
1101 u8 oui_subtype; /* 1 */
1102 u8 version; /* 1 for WMM version 1.0 */
1103 u8 qos_info; /* AP/STA specific QoS info */
1104 u8 reserved; /* 0 */
1105 /* AC_BE, AC_BK, AC_VI, AC_VO */
1106 struct ieee80211_wmm_ac_param ac[4];
1107 } __packed;
1108
1109 /* Control frames */
1110 struct ieee80211_rts {
1111 __le16 frame_control;
1112 __le16 duration;
1113 u8 ra[ETH_ALEN];
1114 u8 ta[ETH_ALEN];
1115 } __packed __aligned(2);
1116
1117 struct ieee80211_cts {
1118 __le16 frame_control;
1119 __le16 duration;
1120 u8 ra[ETH_ALEN];
1121 } __packed __aligned(2);
1122
1123 struct ieee80211_pspoll {
1124 __le16 frame_control;
1125 __le16 aid;
1126 u8 bssid[ETH_ALEN];
1127 u8 ta[ETH_ALEN];
1128 } __packed __aligned(2);
1129
1130 /* TDLS */
1131
1132 /* Channel switch timing */
1133 struct ieee80211_ch_switch_timing {
1134 __le16 switch_time;
1135 __le16 switch_timeout;
1136 } __packed;
1137
1138 /* Link-id information element */
1139 struct ieee80211_tdls_lnkie {
1140 u8 ie_type; /* Link Identifier IE */
1141 u8 ie_len;
1142 u8 bssid[ETH_ALEN];
1143 u8 init_sta[ETH_ALEN];
1144 u8 resp_sta[ETH_ALEN];
1145 } __packed;
1146
1147 struct ieee80211_tdls_data {
1148 u8 da[ETH_ALEN];
1149 u8 sa[ETH_ALEN];
1150 __be16 ether_type;
1151 u8 payload_type;
1152 u8 category;
1153 u8 action_code;
1154 union {
1155 struct {
1156 u8 dialog_token;
1157 __le16 capability;
1158 u8 variable[0];
1159 } __packed setup_req;
1160 struct {
1161 __le16 status_code;
1162 u8 dialog_token;
1163 __le16 capability;
1164 u8 variable[0];
1165 } __packed setup_resp;
1166 struct {
1167 __le16 status_code;
1168 u8 dialog_token;
1169 u8 variable[0];
1170 } __packed setup_cfm;
1171 struct {
1172 __le16 reason_code;
1173 u8 variable[0];
1174 } __packed teardown;
1175 struct {
1176 u8 dialog_token;
1177 u8 variable[0];
1178 } __packed discover_req;
1179 struct {
1180 u8 target_channel;
1181 u8 oper_class;
1182 u8 variable[0];
1183 } __packed chan_switch_req;
1184 struct {
1185 __le16 status_code;
1186 u8 variable[0];
1187 } __packed chan_switch_resp;
1188 } u;
1189 } __packed;
1190
1191 /*
1192 * Peer-to-Peer IE attribute related definitions.
1193 */
1194 /**
1195 * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1196 */
1197 enum ieee80211_p2p_attr_id {
1198 IEEE80211_P2P_ATTR_STATUS = 0,
1199 IEEE80211_P2P_ATTR_MINOR_REASON,
1200 IEEE80211_P2P_ATTR_CAPABILITY,
1201 IEEE80211_P2P_ATTR_DEVICE_ID,
1202 IEEE80211_P2P_ATTR_GO_INTENT,
1203 IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1204 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1205 IEEE80211_P2P_ATTR_GROUP_BSSID,
1206 IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1207 IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1208 IEEE80211_P2P_ATTR_MANAGABILITY,
1209 IEEE80211_P2P_ATTR_CHANNEL_LIST,
1210 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1211 IEEE80211_P2P_ATTR_DEVICE_INFO,
1212 IEEE80211_P2P_ATTR_GROUP_INFO,
1213 IEEE80211_P2P_ATTR_GROUP_ID,
1214 IEEE80211_P2P_ATTR_INTERFACE,
1215 IEEE80211_P2P_ATTR_OPER_CHANNEL,
1216 IEEE80211_P2P_ATTR_INVITE_FLAGS,
1217 /* 19 - 220: Reserved */
1218 IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1219
1220 IEEE80211_P2P_ATTR_MAX
1221 };
1222
1223 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1224 /* Typical max value used here */
1225 #define IEEE80211_P2P_NOA_DESC_MAX 4
1226
1227 struct ieee80211_p2p_noa_desc {
1228 u8 count;
1229 __le32 duration;
1230 __le32 interval;
1231 __le32 start_time;
1232 } __packed;
1233
1234 struct ieee80211_p2p_noa_attr {
1235 u8 index;
1236 u8 oppps_ctwindow;
1237 struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1238 } __packed;
1239
1240 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
1241 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7F
1242
1243 /**
1244 * struct ieee80211_bar - HT Block Ack Request
1245 *
1246 * This structure refers to "HT BlockAckReq" as
1247 * described in 802.11n draft section 7.2.1.7.1
1248 */
1249 struct ieee80211_bar {
1250 __le16 frame_control;
1251 __le16 duration;
1252 __u8 ra[ETH_ALEN];
1253 __u8 ta[ETH_ALEN];
1254 __le16 control;
1255 __le16 start_seq_num;
1256 } __packed;
1257
1258 /* 802.11 BAR control masks */
1259 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
1260 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
1261 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1262 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
1263 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
1264
1265 #define IEEE80211_HT_MCS_MASK_LEN 10
1266
1267 /**
1268 * struct ieee80211_mcs_info - MCS information
1269 * @rx_mask: RX mask
1270 * @rx_highest: highest supported RX rate. If set represents
1271 * the highest supported RX data rate in units of 1 Mbps.
1272 * If this field is 0 this value should not be used to
1273 * consider the highest RX data rate supported.
1274 * @tx_params: TX parameters
1275 */
1276 struct ieee80211_mcs_info {
1277 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1278 __le16 rx_highest;
1279 u8 tx_params;
1280 u8 reserved[3];
1281 } __packed;
1282
1283 /* 802.11n HT capability MSC set */
1284 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
1285 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
1286 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
1287 /* value 0 == 1 stream etc */
1288 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
1289 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
1290 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1291 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
1292
1293 /*
1294 * 802.11n D5.0 20.3.5 / 20.6 says:
1295 * - indices 0 to 7 and 32 are single spatial stream
1296 * - 8 to 31 are multiple spatial streams using equal modulation
1297 * [8..15 for two streams, 16..23 for three and 24..31 for four]
1298 * - remainder are multiple spatial streams using unequal modulation
1299 */
1300 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1301 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1302 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1303
1304 /**
1305 * struct ieee80211_ht_cap - HT capabilities
1306 *
1307 * This structure is the "HT capabilities element" as
1308 * described in 802.11n D5.0 7.3.2.57
1309 */
1310 struct ieee80211_ht_cap {
1311 __le16 cap_info;
1312 u8 ampdu_params_info;
1313
1314 /* 16 bytes MCS information */
1315 struct ieee80211_mcs_info mcs;
1316
1317 __le16 extended_ht_cap_info;
1318 __le32 tx_BF_cap_info;
1319 u8 antenna_selection_info;
1320 } __packed;
1321
1322 /* 802.11n HT capabilities masks (for cap_info) */
1323 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
1324 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
1325 #define IEEE80211_HT_CAP_SM_PS 0x000C
1326 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
1327 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
1328 #define IEEE80211_HT_CAP_SGI_20 0x0020
1329 #define IEEE80211_HT_CAP_SGI_40 0x0040
1330 #define IEEE80211_HT_CAP_TX_STBC 0x0080
1331 #define IEEE80211_HT_CAP_RX_STBC 0x0300
1332 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
1333 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
1334 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
1335 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
1336 #define IEEE80211_HT_CAP_RESERVED 0x2000
1337 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
1338 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
1339
1340 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1341 #define IEEE80211_HT_EXT_CAP_PCO 0x0001
1342 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
1343 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
1344 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
1345 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
1346 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
1347 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
1348
1349 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1350 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
1351 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
1352 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
1353
1354 /*
1355 * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1356 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1357 */
1358 enum ieee80211_max_ampdu_length_exp {
1359 IEEE80211_HT_MAX_AMPDU_8K = 0,
1360 IEEE80211_HT_MAX_AMPDU_16K = 1,
1361 IEEE80211_HT_MAX_AMPDU_32K = 2,
1362 IEEE80211_HT_MAX_AMPDU_64K = 3
1363 };
1364
1365 /*
1366 * Maximum length of AMPDU that the STA can receive in VHT.
1367 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1368 */
1369 enum ieee80211_vht_max_ampdu_length_exp {
1370 IEEE80211_VHT_MAX_AMPDU_8K = 0,
1371 IEEE80211_VHT_MAX_AMPDU_16K = 1,
1372 IEEE80211_VHT_MAX_AMPDU_32K = 2,
1373 IEEE80211_VHT_MAX_AMPDU_64K = 3,
1374 IEEE80211_VHT_MAX_AMPDU_128K = 4,
1375 IEEE80211_VHT_MAX_AMPDU_256K = 5,
1376 IEEE80211_VHT_MAX_AMPDU_512K = 6,
1377 IEEE80211_VHT_MAX_AMPDU_1024K = 7
1378 };
1379
1380 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1381
1382 /* Minimum MPDU start spacing */
1383 enum ieee80211_min_mpdu_spacing {
1384 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1385 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1386 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1387 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1388 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1389 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1390 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1391 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1392 };
1393
1394 /**
1395 * struct ieee80211_ht_operation - HT operation IE
1396 *
1397 * This structure is the "HT operation element" as
1398 * described in 802.11n-2009 7.3.2.57
1399 */
1400 struct ieee80211_ht_operation {
1401 u8 primary_chan;
1402 u8 ht_param;
1403 __le16 operation_mode;
1404 __le16 stbc_param;
1405 u8 basic_set[16];
1406 } __packed;
1407
1408 /* for ht_param */
1409 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1410 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1411 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1412 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1413 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1414 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1415
1416 /* for operation_mode */
1417 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1418 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1419 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1420 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1421 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1422 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1423 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1424 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT 5
1425 #define IEEE80211_HT_OP_MODE_CCFS2_MASK 0x1fe0
1426
1427 /* for stbc_param */
1428 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1429 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1430 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1431 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1432 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1433 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1434
1435
1436 /* block-ack parameters */
1437 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1438 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1439 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1440 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1441 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1442 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1443
1444 /*
1445 * A-MPDU buffer sizes
1446 * According to HT size varies from 8 to 64 frames
1447 * HE adds the ability to have up to 256 frames.
1448 */
1449 #define IEEE80211_MIN_AMPDU_BUF 0x8
1450 #define IEEE80211_MAX_AMPDU_BUF_HT 0x40
1451 #define IEEE80211_MAX_AMPDU_BUF 0x100
1452
1453
1454 /* Spatial Multiplexing Power Save Modes (for capability) */
1455 #define WLAN_HT_CAP_SM_PS_STATIC 0
1456 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1457 #define WLAN_HT_CAP_SM_PS_INVALID 2
1458 #define WLAN_HT_CAP_SM_PS_DISABLED 3
1459
1460 /* for SM power control field lower two bits */
1461 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
1462 #define WLAN_HT_SMPS_CONTROL_STATIC 1
1463 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1464
1465 /**
1466 * struct ieee80211_vht_mcs_info - VHT MCS information
1467 * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1468 * @rx_highest: Indicates highest long GI VHT PPDU data rate
1469 * STA can receive. Rate expressed in units of 1 Mbps.
1470 * If this field is 0 this value should not be used to
1471 * consider the highest RX data rate supported.
1472 * The top 3 bits of this field are reserved.
1473 * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1474 * @tx_highest: Indicates highest long GI VHT PPDU data rate
1475 * STA can transmit. Rate expressed in units of 1 Mbps.
1476 * If this field is 0 this value should not be used to
1477 * consider the highest TX data rate supported.
1478 * The top 3 bits of this field are reserved.
1479 */
1480 struct ieee80211_vht_mcs_info {
1481 __le16 rx_mcs_map;
1482 __le16 rx_highest;
1483 __le16 tx_mcs_map;
1484 __le16 tx_highest;
1485 } __packed;
1486
1487 /**
1488 * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1489 * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1490 * number of streams
1491 * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1492 * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1493 * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1494 *
1495 * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1496 * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1497 * both split into 8 subfields by number of streams. These values indicate
1498 * which MCSes are supported for the number of streams the value appears
1499 * for.
1500 */
1501 enum ieee80211_vht_mcs_support {
1502 IEEE80211_VHT_MCS_SUPPORT_0_7 = 0,
1503 IEEE80211_VHT_MCS_SUPPORT_0_8 = 1,
1504 IEEE80211_VHT_MCS_SUPPORT_0_9 = 2,
1505 IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1506 };
1507
1508 /**
1509 * struct ieee80211_vht_cap - VHT capabilities
1510 *
1511 * This structure is the "VHT capabilities element" as
1512 * described in 802.11ac D3.0 8.4.2.160
1513 * @vht_cap_info: VHT capability info
1514 * @supp_mcs: VHT MCS supported rates
1515 */
1516 struct ieee80211_vht_cap {
1517 __le32 vht_cap_info;
1518 struct ieee80211_vht_mcs_info supp_mcs;
1519 } __packed;
1520
1521 /**
1522 * enum ieee80211_vht_chanwidth - VHT channel width
1523 * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1524 * determine the channel width (20 or 40 MHz)
1525 * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1526 * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1527 * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1528 */
1529 enum ieee80211_vht_chanwidth {
1530 IEEE80211_VHT_CHANWIDTH_USE_HT = 0,
1531 IEEE80211_VHT_CHANWIDTH_80MHZ = 1,
1532 IEEE80211_VHT_CHANWIDTH_160MHZ = 2,
1533 IEEE80211_VHT_CHANWIDTH_80P80MHZ = 3,
1534 };
1535
1536 /**
1537 * struct ieee80211_vht_operation - VHT operation IE
1538 *
1539 * This structure is the "VHT operation element" as
1540 * described in 802.11ac D3.0 8.4.2.161
1541 * @chan_width: Operating channel width
1542 * @center_freq_seg0_idx: center freq segment 0 index
1543 * @center_freq_seg1_idx: center freq segment 1 index
1544 * @basic_mcs_set: VHT Basic MCS rate set
1545 */
1546 struct ieee80211_vht_operation {
1547 u8 chan_width;
1548 u8 center_freq_seg0_idx;
1549 u8 center_freq_seg1_idx;
1550 __le16 basic_mcs_set;
1551 } __packed;
1552
1553 /**
1554 * struct ieee80211_he_cap_elem - HE capabilities element
1555 *
1556 * This structure is the "HE capabilities element" fixed fields as
1557 * described in P802.11ax_D2.0 section 9.4.2.237.2 and 9.4.2.237.3
1558 */
1559 struct ieee80211_he_cap_elem {
1560 u8 mac_cap_info[5];
1561 u8 phy_cap_info[9];
1562 } __packed;
1563
1564 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN 5
1565
1566 /**
1567 * enum ieee80211_he_mcs_support - HE MCS support definitions
1568 * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1569 * number of streams
1570 * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1571 * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
1572 * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
1573 *
1574 * These definitions are used in each 2-bit subfield of the rx_mcs_*
1575 * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
1576 * both split into 8 subfields by number of streams. These values indicate
1577 * which MCSes are supported for the number of streams the value appears
1578 * for.
1579 */
1580 enum ieee80211_he_mcs_support {
1581 IEEE80211_HE_MCS_SUPPORT_0_7 = 0,
1582 IEEE80211_HE_MCS_SUPPORT_0_9 = 1,
1583 IEEE80211_HE_MCS_SUPPORT_0_11 = 2,
1584 IEEE80211_HE_MCS_NOT_SUPPORTED = 3,
1585 };
1586
1587 /**
1588 * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
1589 *
1590 * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
1591 * described in P802.11ax_D2.0 section 9.4.2.237.4
1592 *
1593 * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1594 * widths less than 80MHz.
1595 * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1596 * widths less than 80MHz.
1597 * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1598 * width 160MHz.
1599 * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1600 * width 160MHz.
1601 * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
1602 * channel width 80p80MHz.
1603 * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
1604 * channel width 80p80MHz.
1605 */
1606 struct ieee80211_he_mcs_nss_supp {
1607 __le16 rx_mcs_80;
1608 __le16 tx_mcs_80;
1609 __le16 rx_mcs_160;
1610 __le16 tx_mcs_160;
1611 __le16 rx_mcs_80p80;
1612 __le16 tx_mcs_80p80;
1613 } __packed;
1614
1615 /**
1616 * struct ieee80211_he_operation - HE capabilities element
1617 *
1618 * This structure is the "HE operation element" fields as
1619 * described in P802.11ax_D2.0 section 9.4.2.238
1620 */
1621 struct ieee80211_he_operation {
1622 __le32 he_oper_params;
1623 __le16 he_mcs_nss_set;
1624 /* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */
1625 u8 optional[0];
1626 } __packed;
1627
1628 /**
1629 * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
1630 *
1631 * This structure is the "MU AC Parameter Record" fields as
1632 * described in P802.11ax_D2.0 section 9.4.2.240
1633 */
1634 struct ieee80211_he_mu_edca_param_ac_rec {
1635 u8 aifsn;
1636 u8 ecw_min_max;
1637 u8 mu_edca_timer;
1638 } __packed;
1639
1640 /**
1641 * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
1642 *
1643 * This structure is the "MU EDCA Parameter Set element" fields as
1644 * described in P802.11ax_D2.0 section 9.4.2.240
1645 */
1646 struct ieee80211_mu_edca_param_set {
1647 u8 mu_qos_info;
1648 struct ieee80211_he_mu_edca_param_ac_rec ac_be;
1649 struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
1650 struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
1651 struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
1652 } __packed;
1653
1654 /* 802.11ac VHT Capabilities */
1655 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 0x00000000
1656 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 0x00000001
1657 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 0x00000002
1658 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK 0x00000003
1659 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ 0x00000004
1660 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ 0x00000008
1661 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK 0x0000000C
1662 #define IEEE80211_VHT_CAP_RXLDPC 0x00000010
1663 #define IEEE80211_VHT_CAP_SHORT_GI_80 0x00000020
1664 #define IEEE80211_VHT_CAP_SHORT_GI_160 0x00000040
1665 #define IEEE80211_VHT_CAP_TXSTBC 0x00000080
1666 #define IEEE80211_VHT_CAP_RXSTBC_1 0x00000100
1667 #define IEEE80211_VHT_CAP_RXSTBC_2 0x00000200
1668 #define IEEE80211_VHT_CAP_RXSTBC_3 0x00000300
1669 #define IEEE80211_VHT_CAP_RXSTBC_4 0x00000400
1670 #define IEEE80211_VHT_CAP_RXSTBC_MASK 0x00000700
1671 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE 0x00000800
1672 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE 0x00001000
1673 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT 13
1674 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK \
1675 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1676 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT 16
1677 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK \
1678 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1679 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE 0x00080000
1680 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE 0x00100000
1681 #define IEEE80211_VHT_CAP_VHT_TXOP_PS 0x00200000
1682 #define IEEE80211_VHT_CAP_HTC_VHT 0x00400000
1683 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT 23
1684 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
1685 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1686 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB 0x08000000
1687 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB 0x0c000000
1688 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN 0x10000000
1689 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN 0x20000000
1690
1691 /* 802.11ax HE MAC capabilities */
1692 #define IEEE80211_HE_MAC_CAP0_HTC_HE 0x01
1693 #define IEEE80211_HE_MAC_CAP0_TWT_REQ 0x02
1694 #define IEEE80211_HE_MAC_CAP0_TWT_RES 0x04
1695 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP 0x00
1696 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1 0x08
1697 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2 0x10
1698 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3 0x18
1699 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK 0x18
1700 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1 0x00
1701 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2 0x20
1702 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4 0x40
1703 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8 0x60
1704 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16 0x80
1705 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32 0xa0
1706 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64 0xc0
1707 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED 0xe0
1708 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK 0xe0
1709
1710 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED 0x00
1711 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128 0x01
1712 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256 0x02
1713 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512 0x03
1714 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK 0x03
1715 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US 0x00
1716 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US 0x04
1717 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US 0x08
1718 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK 0x0c
1719 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_1 0x00
1720 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_2 0x10
1721 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_3 0x20
1722 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_4 0x30
1723 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_5 0x40
1724 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_6 0x50
1725 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_7 0x60
1726 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_8 0x70
1727 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_MASK 0x70
1728
1729 /* Link adaptation is split between byte HE_MAC_CAP1 and
1730 * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
1731 * in which case the following values apply:
1732 * 0 = No feedback.
1733 * 1 = reserved.
1734 * 2 = Unsolicited feedback.
1735 * 3 = both
1736 */
1737 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION 0x80
1738
1739 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION 0x01
1740 #define IEEE80211_HE_MAC_CAP2_ALL_ACK 0x02
1741 #define IEEE80211_HE_MAC_CAP2_UL_MU_RESP_SCHED 0x04
1742 #define IEEE80211_HE_MAC_CAP2_BSR 0x08
1743 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT 0x10
1744 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP 0x20
1745 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING 0x40
1746 #define IEEE80211_HE_MAC_CAP2_ACK_EN 0x80
1747
1748 #define IEEE80211_HE_MAC_CAP3_GRP_ADDR_MULTI_STA_BA_DL_MU 0x01
1749 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL 0x02
1750 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA 0x04
1751
1752 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
1753 * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
1754 * same field in the HE capabilities.
1755 */
1756 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_USE_VHT 0x00
1757 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_1 0x08
1758 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_2 0x10
1759 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_RESERVED 0x18
1760 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_MASK 0x18
1761 #define IEEE80211_HE_MAC_CAP3_A_AMSDU_FRAG 0x20
1762 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED 0x40
1763 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS 0x80
1764
1765 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG 0x01
1766 #define IEEE80211_HE_MAC_CAP4_QTP 0x02
1767 #define IEEE80211_HE_MAC_CAP4_BQR 0x04
1768 #define IEEE80211_HE_MAC_CAP4_SR_RESP 0x08
1769 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP 0x10
1770 #define IEEE80211_HE_MAC_CAP4_OPS 0x20
1771 #define IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU 0x40
1772
1773 /* 802.11ax HE PHY capabilities */
1774 #define IEEE80211_HE_PHY_CAP0_DUAL_BAND 0x01
1775 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G 0x02
1776 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G 0x04
1777 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G 0x08
1778 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G 0x10
1779 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G 0x20
1780 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G 0x40
1781 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK 0xfe
1782
1783 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ 0x01
1784 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ 0x02
1785 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
1786 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
1787 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK 0x0f
1788 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A 0x10
1789 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD 0x20
1790 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US 0x40
1791 /* Midamble RX Max NSTS is split between byte #2 and byte #3 */
1792 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_MAX_NSTS 0x80
1793
1794 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_MAX_NSTS 0x01
1795 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US 0x02
1796 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ 0x04
1797 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ 0x08
1798 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX 0x10
1799 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX 0x20
1800
1801 /* Note that the meaning of UL MU below is different between an AP and a non-AP
1802 * sta, where in the AP case it indicates support for Rx and in the non-AP sta
1803 * case it indicates support for Tx.
1804 */
1805 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO 0x40
1806 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO 0x80
1807
1808 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM 0x00
1809 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK 0x01
1810 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK 0x02
1811 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM 0x03
1812 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK 0x03
1813 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1 0x00
1814 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2 0x04
1815 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM 0x00
1816 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK 0x08
1817 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK 0x10
1818 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM 0x18
1819 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK 0x18
1820 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1 0x00
1821 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2 0x20
1822 #define IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA 0x40
1823 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER 0x80
1824
1825 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE 0x01
1826 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER 0x02
1827
1828 /* Minimal allowed value of Max STS under 80MHz is 3 */
1829 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 0x0c
1830 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5 0x10
1831 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6 0x14
1832 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7 0x18
1833 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8 0x1c
1834 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK 0x1c
1835
1836 /* Minimal allowed value of Max STS above 80MHz is 3 */
1837 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4 0x60
1838 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5 0x80
1839 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6 0xa0
1840 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7 0xc0
1841 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8 0xe0
1842 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK 0xe0
1843
1844 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1 0x00
1845 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2 0x01
1846 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3 0x02
1847 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4 0x03
1848 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5 0x04
1849 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6 0x05
1850 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7 0x06
1851 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8 0x07
1852 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK 0x07
1853
1854 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1 0x00
1855 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2 0x08
1856 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3 0x10
1857 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4 0x18
1858 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5 0x20
1859 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6 0x28
1860 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7 0x30
1861 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8 0x38
1862 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK 0x38
1863
1864 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK 0x40
1865 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK 0x80
1866
1867 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU 0x01
1868 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU 0x02
1869 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB 0x04
1870 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB 0x08
1871 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB 0x10
1872 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE 0x20
1873 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO 0x40
1874 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT 0x80
1875
1876 #define IEEE80211_HE_PHY_CAP7_SRP_BASED_SR 0x01
1877 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR 0x02
1878 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI 0x04
1879 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1 0x08
1880 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2 0x10
1881 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3 0x18
1882 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4 0x20
1883 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5 0x28
1884 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6 0x30
1885 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7 0x38
1886 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK 0x38
1887 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ 0x40
1888 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ 0x80
1889
1890 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI 0x01
1891 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G 0x02
1892 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU 0x04
1893 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU 0x08
1894 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI 0x10
1895 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_2X_AND_1XLTF 0x20
1896
1897 /* 802.11ax HE TX/RX MCS NSS Support */
1898 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS (3)
1899 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS (6)
1900 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS (11)
1901 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK 0x07c0
1902 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK 0xf800
1903
1904 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
1905 enum ieee80211_he_highest_mcs_supported_subfield_enc {
1906 HIGHEST_MCS_SUPPORTED_MCS7 = 0,
1907 HIGHEST_MCS_SUPPORTED_MCS8,
1908 HIGHEST_MCS_SUPPORTED_MCS9,
1909 HIGHEST_MCS_SUPPORTED_MCS10,
1910 HIGHEST_MCS_SUPPORTED_MCS11,
1911 };
1912
1913 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
1914 static inline u8
ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem * he_cap)1915 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
1916 {
1917 u8 count = 4;
1918
1919 if (he_cap->phy_cap_info[0] &
1920 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
1921 count += 4;
1922
1923 if (he_cap->phy_cap_info[0] &
1924 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
1925 count += 4;
1926
1927 return count;
1928 }
1929
1930 /* 802.11ax HE PPE Thresholds */
1931 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS (1)
1932 #define IEEE80211_PPE_THRES_NSS_POS (0)
1933 #define IEEE80211_PPE_THRES_NSS_MASK (7)
1934 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU \
1935 (BIT(5) | BIT(6))
1936 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 0x78
1937 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS (3)
1938 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE (3)
1939
1940 /*
1941 * Calculate 802.11ax HE capabilities IE PPE field size
1942 * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
1943 */
1944 static inline u8
ieee80211_he_ppe_size(u8 ppe_thres_hdr,const u8 * phy_cap_info)1945 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
1946 {
1947 u8 n;
1948
1949 if ((phy_cap_info[6] &
1950 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
1951 return 0;
1952
1953 n = hweight8(ppe_thres_hdr &
1954 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
1955 n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
1956 IEEE80211_PPE_THRES_NSS_POS));
1957
1958 /*
1959 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
1960 * total size.
1961 */
1962 n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
1963 n = DIV_ROUND_UP(n, 8);
1964
1965 return n;
1966 }
1967
1968 /* HE Operation defines */
1969 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK 0x0000003f
1970 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK 0x000001c0
1971 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_OFFSET 6
1972 #define IEEE80211_HE_OPERATION_TWT_REQUIRED 0x00000200
1973 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK 0x000ffc00
1974 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET 10
1975 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x000100000
1976 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO 0x000200000
1977 #define IEEE80211_HE_OPERATION_MULTI_BSSID_AP 0x10000000
1978 #define IEEE80211_HE_OPERATION_TX_BSSID_INDICATOR 0x20000000
1979 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED 0x40000000
1980
1981 /*
1982 * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
1983 * @he_oper_ie: byte data of the He Operations IE, stating from the the byte
1984 * after the ext ID byte. It is assumed that he_oper_ie has at least
1985 * sizeof(struct ieee80211_he_operation) bytes, checked already in
1986 * ieee802_11_parse_elems_crc()
1987 * @return the actual size of the IE data (not including header), or 0 on error
1988 */
1989 static inline u8
ieee80211_he_oper_size(const u8 * he_oper_ie)1990 ieee80211_he_oper_size(const u8 *he_oper_ie)
1991 {
1992 struct ieee80211_he_operation *he_oper = (void *)he_oper_ie;
1993 u8 oper_len = sizeof(struct ieee80211_he_operation);
1994 u32 he_oper_params;
1995
1996 /* Make sure the input is not NULL */
1997 if (!he_oper_ie)
1998 return 0;
1999
2000 /* Calc required length */
2001 he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2002 if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2003 oper_len += 3;
2004 if (he_oper_params & IEEE80211_HE_OPERATION_MULTI_BSSID_AP)
2005 oper_len++;
2006
2007 /* Add the first byte (extension ID) to the total length */
2008 oper_len++;
2009
2010 return oper_len;
2011 }
2012
2013 /* Authentication algorithms */
2014 #define WLAN_AUTH_OPEN 0
2015 #define WLAN_AUTH_SHARED_KEY 1
2016 #define WLAN_AUTH_FT 2
2017 #define WLAN_AUTH_SAE 3
2018 #define WLAN_AUTH_FILS_SK 4
2019 #define WLAN_AUTH_FILS_SK_PFS 5
2020 #define WLAN_AUTH_FILS_PK 6
2021 #define WLAN_AUTH_LEAP 128
2022
2023 #define WLAN_AUTH_CHALLENGE_LEN 128
2024
2025 #define WLAN_CAPABILITY_ESS (1<<0)
2026 #define WLAN_CAPABILITY_IBSS (1<<1)
2027
2028 /*
2029 * A mesh STA sets the ESS and IBSS capability bits to zero.
2030 * however, this holds true for p2p probe responses (in the p2p_find
2031 * phase) as well.
2032 */
2033 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
2034 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
2035
2036 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
2037 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
2038 #define WLAN_CAPABILITY_PRIVACY (1<<4)
2039 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
2040 #define WLAN_CAPABILITY_PBCC (1<<6)
2041 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
2042
2043 /* 802.11h */
2044 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
2045 #define WLAN_CAPABILITY_QOS (1<<9)
2046 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
2047 #define WLAN_CAPABILITY_APSD (1<<11)
2048 #define WLAN_CAPABILITY_RADIO_MEASURE (1<<12)
2049 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
2050 #define WLAN_CAPABILITY_DEL_BACK (1<<14)
2051 #define WLAN_CAPABILITY_IMM_BACK (1<<15)
2052
2053 /* DMG (60gHz) 802.11ad */
2054 /* type - bits 0..1 */
2055 #define WLAN_CAPABILITY_DMG_TYPE_MASK (3<<0)
2056 #define WLAN_CAPABILITY_DMG_TYPE_IBSS (1<<0) /* Tx by: STA */
2057 #define WLAN_CAPABILITY_DMG_TYPE_PBSS (2<<0) /* Tx by: PCP */
2058 #define WLAN_CAPABILITY_DMG_TYPE_AP (3<<0) /* Tx by: AP */
2059
2060 #define WLAN_CAPABILITY_DMG_CBAP_ONLY (1<<2)
2061 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3)
2062 #define WLAN_CAPABILITY_DMG_PRIVACY (1<<4)
2063 #define WLAN_CAPABILITY_DMG_ECPAC (1<<5)
2064
2065 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT (1<<8)
2066 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE (1<<12)
2067
2068 /* measurement */
2069 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
2070 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
2071 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
2072
2073 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
2074 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
2075 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
2076
2077 /* 802.11g ERP information element */
2078 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
2079 #define WLAN_ERP_USE_PROTECTION (1<<1)
2080 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
2081
2082 /* WLAN_ERP_BARKER_PREAMBLE values */
2083 enum {
2084 WLAN_ERP_PREAMBLE_SHORT = 0,
2085 WLAN_ERP_PREAMBLE_LONG = 1,
2086 };
2087
2088 /* Band ID, 802.11ad #8.4.1.45 */
2089 enum {
2090 IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
2091 IEEE80211_BANDID_SUB1 = 1, /* Sub-1 GHz (excluding TV white spaces) */
2092 IEEE80211_BANDID_2G = 2, /* 2.4 GHz */
2093 IEEE80211_BANDID_3G = 3, /* 3.6 GHz */
2094 IEEE80211_BANDID_5G = 4, /* 4.9 and 5 GHz */
2095 IEEE80211_BANDID_60G = 5, /* 60 GHz */
2096 };
2097
2098 /* Status codes */
2099 enum ieee80211_statuscode {
2100 WLAN_STATUS_SUCCESS = 0,
2101 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
2102 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
2103 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
2104 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
2105 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
2106 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
2107 WLAN_STATUS_CHALLENGE_FAIL = 15,
2108 WLAN_STATUS_AUTH_TIMEOUT = 16,
2109 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
2110 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
2111 /* 802.11b */
2112 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
2113 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
2114 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
2115 /* 802.11h */
2116 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
2117 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
2118 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
2119 /* 802.11g */
2120 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
2121 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
2122 /* 802.11w */
2123 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
2124 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
2125 /* 802.11i */
2126 WLAN_STATUS_INVALID_IE = 40,
2127 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
2128 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
2129 WLAN_STATUS_INVALID_AKMP = 43,
2130 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
2131 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
2132 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
2133 /* 802.11e */
2134 WLAN_STATUS_UNSPECIFIED_QOS = 32,
2135 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
2136 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
2137 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
2138 WLAN_STATUS_REQUEST_DECLINED = 37,
2139 WLAN_STATUS_INVALID_QOS_PARAM = 38,
2140 WLAN_STATUS_CHANGE_TSPEC = 39,
2141 WLAN_STATUS_WAIT_TS_DELAY = 47,
2142 WLAN_STATUS_NO_DIRECT_LINK = 48,
2143 WLAN_STATUS_STA_NOT_PRESENT = 49,
2144 WLAN_STATUS_STA_NOT_QSTA = 50,
2145 /* 802.11s */
2146 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
2147 WLAN_STATUS_FCG_NOT_SUPP = 78,
2148 WLAN_STATUS_STA_NO_TBTT = 78,
2149 /* 802.11ad */
2150 WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
2151 WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
2152 WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
2153 WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
2154 WLAN_STATUS_PERFORMING_FST_NOW = 87,
2155 WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
2156 WLAN_STATUS_REJECT_U_PID_SETTING = 89,
2157 WLAN_STATUS_REJECT_DSE_BAND = 96,
2158 WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
2159 WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
2160 /* 802.11ai */
2161 WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
2162 WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
2163 };
2164
2165
2166 /* Reason codes */
2167 enum ieee80211_reasoncode {
2168 WLAN_REASON_UNSPECIFIED = 1,
2169 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
2170 WLAN_REASON_DEAUTH_LEAVING = 3,
2171 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
2172 WLAN_REASON_DISASSOC_AP_BUSY = 5,
2173 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
2174 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
2175 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
2176 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
2177 /* 802.11h */
2178 WLAN_REASON_DISASSOC_BAD_POWER = 10,
2179 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
2180 /* 802.11i */
2181 WLAN_REASON_INVALID_IE = 13,
2182 WLAN_REASON_MIC_FAILURE = 14,
2183 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
2184 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
2185 WLAN_REASON_IE_DIFFERENT = 17,
2186 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
2187 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
2188 WLAN_REASON_INVALID_AKMP = 20,
2189 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
2190 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
2191 WLAN_REASON_IEEE8021X_FAILED = 23,
2192 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
2193 /* TDLS (802.11z) */
2194 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
2195 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
2196 /* 802.11e */
2197 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
2198 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
2199 WLAN_REASON_DISASSOC_LOW_ACK = 34,
2200 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
2201 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
2202 WLAN_REASON_QSTA_NOT_USE = 37,
2203 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
2204 WLAN_REASON_QSTA_TIMEOUT = 39,
2205 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
2206 /* 802.11s */
2207 WLAN_REASON_MESH_PEER_CANCELED = 52,
2208 WLAN_REASON_MESH_MAX_PEERS = 53,
2209 WLAN_REASON_MESH_CONFIG = 54,
2210 WLAN_REASON_MESH_CLOSE = 55,
2211 WLAN_REASON_MESH_MAX_RETRIES = 56,
2212 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
2213 WLAN_REASON_MESH_INVALID_GTK = 58,
2214 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
2215 WLAN_REASON_MESH_INVALID_SECURITY = 60,
2216 WLAN_REASON_MESH_PATH_ERROR = 61,
2217 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
2218 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
2219 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
2220 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
2221 WLAN_REASON_MESH_CHAN = 66,
2222 };
2223
2224
2225 /* Information Element IDs */
2226 enum ieee80211_eid {
2227 WLAN_EID_SSID = 0,
2228 WLAN_EID_SUPP_RATES = 1,
2229 WLAN_EID_FH_PARAMS = 2, /* reserved now */
2230 WLAN_EID_DS_PARAMS = 3,
2231 WLAN_EID_CF_PARAMS = 4,
2232 WLAN_EID_TIM = 5,
2233 WLAN_EID_IBSS_PARAMS = 6,
2234 WLAN_EID_COUNTRY = 7,
2235 /* 8, 9 reserved */
2236 WLAN_EID_REQUEST = 10,
2237 WLAN_EID_QBSS_LOAD = 11,
2238 WLAN_EID_EDCA_PARAM_SET = 12,
2239 WLAN_EID_TSPEC = 13,
2240 WLAN_EID_TCLAS = 14,
2241 WLAN_EID_SCHEDULE = 15,
2242 WLAN_EID_CHALLENGE = 16,
2243 /* 17-31 reserved for challenge text extension */
2244 WLAN_EID_PWR_CONSTRAINT = 32,
2245 WLAN_EID_PWR_CAPABILITY = 33,
2246 WLAN_EID_TPC_REQUEST = 34,
2247 WLAN_EID_TPC_REPORT = 35,
2248 WLAN_EID_SUPPORTED_CHANNELS = 36,
2249 WLAN_EID_CHANNEL_SWITCH = 37,
2250 WLAN_EID_MEASURE_REQUEST = 38,
2251 WLAN_EID_MEASURE_REPORT = 39,
2252 WLAN_EID_QUIET = 40,
2253 WLAN_EID_IBSS_DFS = 41,
2254 WLAN_EID_ERP_INFO = 42,
2255 WLAN_EID_TS_DELAY = 43,
2256 WLAN_EID_TCLAS_PROCESSING = 44,
2257 WLAN_EID_HT_CAPABILITY = 45,
2258 WLAN_EID_QOS_CAPA = 46,
2259 /* 47 reserved for Broadcom */
2260 WLAN_EID_RSN = 48,
2261 WLAN_EID_802_15_COEX = 49,
2262 WLAN_EID_EXT_SUPP_RATES = 50,
2263 WLAN_EID_AP_CHAN_REPORT = 51,
2264 WLAN_EID_NEIGHBOR_REPORT = 52,
2265 WLAN_EID_RCPI = 53,
2266 WLAN_EID_MOBILITY_DOMAIN = 54,
2267 WLAN_EID_FAST_BSS_TRANSITION = 55,
2268 WLAN_EID_TIMEOUT_INTERVAL = 56,
2269 WLAN_EID_RIC_DATA = 57,
2270 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
2271 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
2272 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
2273 WLAN_EID_HT_OPERATION = 61,
2274 WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
2275 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
2276 WLAN_EID_ANTENNA_INFO = 64,
2277 WLAN_EID_RSNI = 65,
2278 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
2279 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
2280 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
2281 WLAN_EID_TIME_ADVERTISEMENT = 69,
2282 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
2283 WLAN_EID_MULTIPLE_BSSID = 71,
2284 WLAN_EID_BSS_COEX_2040 = 72,
2285 WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
2286 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
2287 WLAN_EID_RIC_DESCRIPTOR = 75,
2288 WLAN_EID_MMIE = 76,
2289 WLAN_EID_ASSOC_COMEBACK_TIME = 77,
2290 WLAN_EID_EVENT_REQUEST = 78,
2291 WLAN_EID_EVENT_REPORT = 79,
2292 WLAN_EID_DIAGNOSTIC_REQUEST = 80,
2293 WLAN_EID_DIAGNOSTIC_REPORT = 81,
2294 WLAN_EID_LOCATION_PARAMS = 82,
2295 WLAN_EID_NON_TX_BSSID_CAP = 83,
2296 WLAN_EID_SSID_LIST = 84,
2297 WLAN_EID_MULTI_BSSID_IDX = 85,
2298 WLAN_EID_FMS_DESCRIPTOR = 86,
2299 WLAN_EID_FMS_REQUEST = 87,
2300 WLAN_EID_FMS_RESPONSE = 88,
2301 WLAN_EID_QOS_TRAFFIC_CAPA = 89,
2302 WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
2303 WLAN_EID_TSF_REQUEST = 91,
2304 WLAN_EID_TSF_RESPOSNE = 92,
2305 WLAN_EID_WNM_SLEEP_MODE = 93,
2306 WLAN_EID_TIM_BCAST_REQ = 94,
2307 WLAN_EID_TIM_BCAST_RESP = 95,
2308 WLAN_EID_COLL_IF_REPORT = 96,
2309 WLAN_EID_CHANNEL_USAGE = 97,
2310 WLAN_EID_TIME_ZONE = 98,
2311 WLAN_EID_DMS_REQUEST = 99,
2312 WLAN_EID_DMS_RESPONSE = 100,
2313 WLAN_EID_LINK_ID = 101,
2314 WLAN_EID_WAKEUP_SCHEDUL = 102,
2315 /* 103 reserved */
2316 WLAN_EID_CHAN_SWITCH_TIMING = 104,
2317 WLAN_EID_PTI_CONTROL = 105,
2318 WLAN_EID_PU_BUFFER_STATUS = 106,
2319 WLAN_EID_INTERWORKING = 107,
2320 WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
2321 WLAN_EID_EXPEDITED_BW_REQ = 109,
2322 WLAN_EID_QOS_MAP_SET = 110,
2323 WLAN_EID_ROAMING_CONSORTIUM = 111,
2324 WLAN_EID_EMERGENCY_ALERT = 112,
2325 WLAN_EID_MESH_CONFIG = 113,
2326 WLAN_EID_MESH_ID = 114,
2327 WLAN_EID_LINK_METRIC_REPORT = 115,
2328 WLAN_EID_CONGESTION_NOTIFICATION = 116,
2329 WLAN_EID_PEER_MGMT = 117,
2330 WLAN_EID_CHAN_SWITCH_PARAM = 118,
2331 WLAN_EID_MESH_AWAKE_WINDOW = 119,
2332 WLAN_EID_BEACON_TIMING = 120,
2333 WLAN_EID_MCCAOP_SETUP_REQ = 121,
2334 WLAN_EID_MCCAOP_SETUP_RESP = 122,
2335 WLAN_EID_MCCAOP_ADVERT = 123,
2336 WLAN_EID_MCCAOP_TEARDOWN = 124,
2337 WLAN_EID_GANN = 125,
2338 WLAN_EID_RANN = 126,
2339 WLAN_EID_EXT_CAPABILITY = 127,
2340 /* 128, 129 reserved for Agere */
2341 WLAN_EID_PREQ = 130,
2342 WLAN_EID_PREP = 131,
2343 WLAN_EID_PERR = 132,
2344 /* 133-136 reserved for Cisco */
2345 WLAN_EID_PXU = 137,
2346 WLAN_EID_PXUC = 138,
2347 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
2348 WLAN_EID_MIC = 140,
2349 WLAN_EID_DESTINATION_URI = 141,
2350 WLAN_EID_UAPSD_COEX = 142,
2351 WLAN_EID_WAKEUP_SCHEDULE = 143,
2352 WLAN_EID_EXT_SCHEDULE = 144,
2353 WLAN_EID_STA_AVAILABILITY = 145,
2354 WLAN_EID_DMG_TSPEC = 146,
2355 WLAN_EID_DMG_AT = 147,
2356 WLAN_EID_DMG_CAP = 148,
2357 /* 149 reserved for Cisco */
2358 WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
2359 WLAN_EID_DMG_OPERATION = 151,
2360 WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
2361 WLAN_EID_DMG_BEAM_REFINEMENT = 153,
2362 WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
2363 /* 155-156 reserved for Cisco */
2364 WLAN_EID_AWAKE_WINDOW = 157,
2365 WLAN_EID_MULTI_BAND = 158,
2366 WLAN_EID_ADDBA_EXT = 159,
2367 WLAN_EID_NEXT_PCP_LIST = 160,
2368 WLAN_EID_PCP_HANDOVER = 161,
2369 WLAN_EID_DMG_LINK_MARGIN = 162,
2370 WLAN_EID_SWITCHING_STREAM = 163,
2371 WLAN_EID_SESSION_TRANSITION = 164,
2372 WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
2373 WLAN_EID_CLUSTER_REPORT = 166,
2374 WLAN_EID_RELAY_CAP = 167,
2375 WLAN_EID_RELAY_XFER_PARAM_SET = 168,
2376 WLAN_EID_BEAM_LINK_MAINT = 169,
2377 WLAN_EID_MULTIPLE_MAC_ADDR = 170,
2378 WLAN_EID_U_PID = 171,
2379 WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
2380 /* 173 reserved for Symbol */
2381 WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
2382 WLAN_EID_QUIET_PERIOD_REQ = 175,
2383 /* 176 reserved for Symbol */
2384 WLAN_EID_QUIET_PERIOD_RESP = 177,
2385 /* 178-179 reserved for Symbol */
2386 /* 180 reserved for ISO/IEC 20011 */
2387 WLAN_EID_EPAC_POLICY = 182,
2388 WLAN_EID_CLISTER_TIME_OFF = 183,
2389 WLAN_EID_INTER_AC_PRIO = 184,
2390 WLAN_EID_SCS_DESCRIPTOR = 185,
2391 WLAN_EID_QLOAD_REPORT = 186,
2392 WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
2393 WLAN_EID_HL_STREAM_ID = 188,
2394 WLAN_EID_GCR_GROUP_ADDR = 189,
2395 WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
2396 WLAN_EID_VHT_CAPABILITY = 191,
2397 WLAN_EID_VHT_OPERATION = 192,
2398 WLAN_EID_EXTENDED_BSS_LOAD = 193,
2399 WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
2400 WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
2401 WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
2402 WLAN_EID_AID = 197,
2403 WLAN_EID_QUIET_CHANNEL = 198,
2404 WLAN_EID_OPMODE_NOTIF = 199,
2405
2406 WLAN_EID_VENDOR_SPECIFIC = 221,
2407 WLAN_EID_QOS_PARAMETER = 222,
2408 WLAN_EID_CAG_NUMBER = 237,
2409 WLAN_EID_AP_CSN = 239,
2410 WLAN_EID_FILS_INDICATION = 240,
2411 WLAN_EID_DILS = 241,
2412 WLAN_EID_FRAGMENT = 242,
2413 WLAN_EID_EXTENSION = 255
2414 };
2415
2416 /* Element ID Extensions for Element ID 255 */
2417 enum ieee80211_eid_ext {
2418 WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
2419 WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
2420 WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
2421 WLAN_EID_EXT_FILS_SESSION = 4,
2422 WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
2423 WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
2424 WLAN_EID_EXT_KEY_DELIVERY = 7,
2425 WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
2426 WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
2427 WLAN_EID_EXT_FILS_NONCE = 13,
2428 WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
2429 WLAN_EID_EXT_HE_CAPABILITY = 35,
2430 WLAN_EID_EXT_HE_OPERATION = 36,
2431 WLAN_EID_EXT_UORA = 37,
2432 WLAN_EID_EXT_HE_MU_EDCA = 38,
2433 };
2434
2435 /* Action category code */
2436 enum ieee80211_category {
2437 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
2438 WLAN_CATEGORY_QOS = 1,
2439 WLAN_CATEGORY_DLS = 2,
2440 WLAN_CATEGORY_BACK = 3,
2441 WLAN_CATEGORY_PUBLIC = 4,
2442 WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
2443 WLAN_CATEGORY_HT = 7,
2444 WLAN_CATEGORY_SA_QUERY = 8,
2445 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
2446 WLAN_CATEGORY_WNM = 10,
2447 WLAN_CATEGORY_WNM_UNPROTECTED = 11,
2448 WLAN_CATEGORY_TDLS = 12,
2449 WLAN_CATEGORY_MESH_ACTION = 13,
2450 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
2451 WLAN_CATEGORY_SELF_PROTECTED = 15,
2452 WLAN_CATEGORY_DMG = 16,
2453 WLAN_CATEGORY_WMM = 17,
2454 WLAN_CATEGORY_FST = 18,
2455 WLAN_CATEGORY_UNPROT_DMG = 20,
2456 WLAN_CATEGORY_VHT = 21,
2457 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
2458 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
2459 };
2460
2461 /* SPECTRUM_MGMT action code */
2462 enum ieee80211_spectrum_mgmt_actioncode {
2463 WLAN_ACTION_SPCT_MSR_REQ = 0,
2464 WLAN_ACTION_SPCT_MSR_RPRT = 1,
2465 WLAN_ACTION_SPCT_TPC_REQ = 2,
2466 WLAN_ACTION_SPCT_TPC_RPRT = 3,
2467 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2468 };
2469
2470 /* HT action codes */
2471 enum ieee80211_ht_actioncode {
2472 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2473 WLAN_HT_ACTION_SMPS = 1,
2474 WLAN_HT_ACTION_PSMP = 2,
2475 WLAN_HT_ACTION_PCO_PHASE = 3,
2476 WLAN_HT_ACTION_CSI = 4,
2477 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2478 WLAN_HT_ACTION_COMPRESSED_BF = 6,
2479 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2480 };
2481
2482 /* VHT action codes */
2483 enum ieee80211_vht_actioncode {
2484 WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2485 WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2486 WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2487 };
2488
2489 /* Self Protected Action codes */
2490 enum ieee80211_self_protected_actioncode {
2491 WLAN_SP_RESERVED = 0,
2492 WLAN_SP_MESH_PEERING_OPEN = 1,
2493 WLAN_SP_MESH_PEERING_CONFIRM = 2,
2494 WLAN_SP_MESH_PEERING_CLOSE = 3,
2495 WLAN_SP_MGK_INFORM = 4,
2496 WLAN_SP_MGK_ACK = 5,
2497 };
2498
2499 /* Mesh action codes */
2500 enum ieee80211_mesh_actioncode {
2501 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2502 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2503 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2504 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2505 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2506 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2507 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2508 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2509 WLAN_MESH_ACTION_MCCA_TEARDOWN,
2510 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2511 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2512 };
2513
2514 /* Security key length */
2515 enum ieee80211_key_len {
2516 WLAN_KEY_LEN_WEP40 = 5,
2517 WLAN_KEY_LEN_WEP104 = 13,
2518 WLAN_KEY_LEN_CCMP = 16,
2519 WLAN_KEY_LEN_CCMP_256 = 32,
2520 WLAN_KEY_LEN_TKIP = 32,
2521 WLAN_KEY_LEN_AES_CMAC = 16,
2522 WLAN_KEY_LEN_SMS4 = 32,
2523 WLAN_KEY_LEN_GCMP = 16,
2524 WLAN_KEY_LEN_GCMP_256 = 32,
2525 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2526 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2527 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2528 };
2529
2530 #define IEEE80211_WEP_IV_LEN 4
2531 #define IEEE80211_WEP_ICV_LEN 4
2532 #define IEEE80211_CCMP_HDR_LEN 8
2533 #define IEEE80211_CCMP_MIC_LEN 8
2534 #define IEEE80211_CCMP_PN_LEN 6
2535 #define IEEE80211_CCMP_256_HDR_LEN 8
2536 #define IEEE80211_CCMP_256_MIC_LEN 16
2537 #define IEEE80211_CCMP_256_PN_LEN 6
2538 #define IEEE80211_TKIP_IV_LEN 8
2539 #define IEEE80211_TKIP_ICV_LEN 4
2540 #define IEEE80211_CMAC_PN_LEN 6
2541 #define IEEE80211_GMAC_PN_LEN 6
2542 #define IEEE80211_GCMP_HDR_LEN 8
2543 #define IEEE80211_GCMP_MIC_LEN 16
2544 #define IEEE80211_GCMP_PN_LEN 6
2545
2546 #define FILS_NONCE_LEN 16
2547 #define FILS_MAX_KEK_LEN 64
2548
2549 #define FILS_ERP_MAX_USERNAME_LEN 16
2550 #define FILS_ERP_MAX_REALM_LEN 253
2551 #define FILS_ERP_MAX_RRK_LEN 64
2552
2553 #define PMK_MAX_LEN 64
2554
2555 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
2556 enum ieee80211_pub_actioncode {
2557 WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
2558 WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
2559 WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
2560 WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
2561 WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2562 WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
2563 WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
2564 WLAN_PUB_ACTION_MSMT_PILOT = 7,
2565 WLAN_PUB_ACTION_DSE_PC = 8,
2566 WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
2567 WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
2568 WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
2569 WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
2570 WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
2571 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2572 WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
2573 WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
2574 WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
2575 WLAN_PUB_ACTION_QMF_POLICY = 18,
2576 WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
2577 WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
2578 WLAN_PUB_ACTION_QLOAD_REPORT = 21,
2579 WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
2580 WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
2581 WLAN_PUB_ACTION_PUBLIC_KEY = 24,
2582 WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
2583 WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
2584 WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
2585 WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
2586 WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
2587 WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
2588 WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
2589 WLAN_PUB_ACTION_FTM_REQUEST = 32,
2590 WLAN_PUB_ACTION_FTM = 33,
2591 WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
2592 };
2593
2594 /* TDLS action codes */
2595 enum ieee80211_tdls_actioncode {
2596 WLAN_TDLS_SETUP_REQUEST = 0,
2597 WLAN_TDLS_SETUP_RESPONSE = 1,
2598 WLAN_TDLS_SETUP_CONFIRM = 2,
2599 WLAN_TDLS_TEARDOWN = 3,
2600 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2601 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2602 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2603 WLAN_TDLS_PEER_PSM_REQUEST = 7,
2604 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2605 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2606 WLAN_TDLS_DISCOVERY_REQUEST = 10,
2607 };
2608
2609 /* Extended Channel Switching capability to be set in the 1st byte of
2610 * the @WLAN_EID_EXT_CAPABILITY information element
2611 */
2612 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2)
2613
2614 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2615 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA BIT(4)
2616 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM BIT(5)
2617 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH BIT(6)
2618
2619 /* Interworking capabilities are set in 7th bit of 4th byte of the
2620 * @WLAN_EID_EXT_CAPABILITY information element
2621 */
2622 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED BIT(7)
2623
2624 /*
2625 * TDLS capabililites to be enabled in the 5th byte of the
2626 * @WLAN_EID_EXT_CAPABILITY information element
2627 */
2628 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
2629 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
2630 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED BIT(7)
2631
2632 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED BIT(5)
2633 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(6)
2634
2635 /* Defines the maximal number of MSDUs in an A-MSDU. */
2636 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(7)
2637 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(0)
2638
2639 /*
2640 * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2641 * information element
2642 */
2643 #define WLAN_EXT_CAPA9_FTM_INITIATOR BIT(7)
2644
2645 /* TDLS specific payload type in the LLC/SNAP header */
2646 #define WLAN_TDLS_SNAP_RFTYPE 0x2
2647
2648 /* BSS Coex IE information field bits */
2649 #define WLAN_BSS_COEX_INFORMATION_REQUEST BIT(0)
2650
2651 /**
2652 * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
2653 *
2654 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2655 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2656 * that will be specified in a vendor specific information element
2657 */
2658 enum ieee80211_mesh_sync_method {
2659 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2660 IEEE80211_SYNC_METHOD_VENDOR = 255,
2661 };
2662
2663 /**
2664 * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
2665 *
2666 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2667 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2668 * be specified in a vendor specific information element
2669 */
2670 enum ieee80211_mesh_path_protocol {
2671 IEEE80211_PATH_PROTOCOL_HWMP = 1,
2672 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2673 };
2674
2675 /**
2676 * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
2677 *
2678 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2679 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2680 * specified in a vendor specific information element
2681 */
2682 enum ieee80211_mesh_path_metric {
2683 IEEE80211_PATH_METRIC_AIRTIME = 1,
2684 IEEE80211_PATH_METRIC_VENDOR = 255,
2685 };
2686
2687 /**
2688 * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2689 *
2690 * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2691 *
2692 * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2693 * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2694 * this value
2695 * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2696 * the proactive PREQ with proactive PREP subfield set to 0
2697 * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2698 * supports the proactive PREQ with proactive PREP subfield set to 1
2699 * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2700 * the proactive RANN
2701 */
2702 enum ieee80211_root_mode_identifier {
2703 IEEE80211_ROOTMODE_NO_ROOT = 0,
2704 IEEE80211_ROOTMODE_ROOT = 1,
2705 IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2706 IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2707 IEEE80211_PROACTIVE_RANN = 4,
2708 };
2709
2710 /*
2711 * IEEE 802.11-2007 7.3.2.9 Country information element
2712 *
2713 * Minimum length is 8 octets, ie len must be evenly
2714 * divisible by 2
2715 */
2716
2717 /* Although the spec says 8 I'm seeing 6 in practice */
2718 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
2719
2720 /* The Country String field of the element shall be 3 octets in length */
2721 #define IEEE80211_COUNTRY_STRING_LEN 3
2722
2723 /*
2724 * For regulatory extension stuff see IEEE 802.11-2007
2725 * Annex I (page 1141) and Annex J (page 1147). Also
2726 * review 7.3.2.9.
2727 *
2728 * When dot11RegulatoryClassesRequired is true and the
2729 * first_channel/reg_extension_id is >= 201 then the IE
2730 * compromises of the 'ext' struct represented below:
2731 *
2732 * - Regulatory extension ID - when generating IE this just needs
2733 * to be monotonically increasing for each triplet passed in
2734 * the IE
2735 * - Regulatory class - index into set of rules
2736 * - Coverage class - index into air propagation time (Table 7-27),
2737 * in microseconds, you can compute the air propagation time from
2738 * the index by multiplying by 3, so index 10 yields a propagation
2739 * of 10 us. Valid values are 0-31, values 32-255 are not defined
2740 * yet. A value of 0 inicates air propagation of <= 1 us.
2741 *
2742 * See also Table I.2 for Emission limit sets and table
2743 * I.3 for Behavior limit sets. Table J.1 indicates how to map
2744 * a reg_class to an emission limit set and behavior limit set.
2745 */
2746 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2747
2748 /*
2749 * Channels numbers in the IE must be monotonically increasing
2750 * if dot11RegulatoryClassesRequired is not true.
2751 *
2752 * If dot11RegulatoryClassesRequired is true consecutive
2753 * subband triplets following a regulatory triplet shall
2754 * have monotonically increasing first_channel number fields.
2755 *
2756 * Channel numbers shall not overlap.
2757 *
2758 * Note that max_power is signed.
2759 */
2760 struct ieee80211_country_ie_triplet {
2761 union {
2762 struct {
2763 u8 first_channel;
2764 u8 num_channels;
2765 s8 max_power;
2766 } __packed chans;
2767 struct {
2768 u8 reg_extension_id;
2769 u8 reg_class;
2770 u8 coverage_class;
2771 } __packed ext;
2772 };
2773 } __packed;
2774
2775 enum ieee80211_timeout_interval_type {
2776 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2777 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2778 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2779 };
2780
2781 /**
2782 * struct ieee80211_timeout_interval_ie - Timeout Interval element
2783 * @type: type, see &enum ieee80211_timeout_interval_type
2784 * @value: timeout interval value
2785 */
2786 struct ieee80211_timeout_interval_ie {
2787 u8 type;
2788 __le32 value;
2789 } __packed;
2790
2791 /**
2792 * enum ieee80211_idle_options - BSS idle options
2793 * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
2794 * protected frame to the AP to reset the idle timer at the AP for
2795 * the station.
2796 */
2797 enum ieee80211_idle_options {
2798 WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
2799 };
2800
2801 /**
2802 * struct ieee80211_bss_max_idle_period_ie
2803 *
2804 * This structure refers to "BSS Max idle period element"
2805 *
2806 * @max_idle_period: indicates the time period during which a station can
2807 * refrain from transmitting frames to its associated AP without being
2808 * disassociated. In units of 1000 TUs.
2809 * @idle_options: indicates the options associated with the BSS idle capability
2810 * as specified in &enum ieee80211_idle_options.
2811 */
2812 struct ieee80211_bss_max_idle_period_ie {
2813 __le16 max_idle_period;
2814 u8 idle_options;
2815 } __packed;
2816
2817 /* BACK action code */
2818 enum ieee80211_back_actioncode {
2819 WLAN_ACTION_ADDBA_REQ = 0,
2820 WLAN_ACTION_ADDBA_RESP = 1,
2821 WLAN_ACTION_DELBA = 2,
2822 };
2823
2824 /* BACK (block-ack) parties */
2825 enum ieee80211_back_parties {
2826 WLAN_BACK_RECIPIENT = 0,
2827 WLAN_BACK_INITIATOR = 1,
2828 };
2829
2830 /* SA Query action */
2831 enum ieee80211_sa_query_action {
2832 WLAN_ACTION_SA_QUERY_REQUEST = 0,
2833 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2834 };
2835
2836
2837 #define SUITE(oui, id) (((oui) << 8) | (id))
2838
2839 /* cipher suite selectors */
2840 #define WLAN_CIPHER_SUITE_USE_GROUP SUITE(0x000FAC, 0)
2841 #define WLAN_CIPHER_SUITE_WEP40 SUITE(0x000FAC, 1)
2842 #define WLAN_CIPHER_SUITE_TKIP SUITE(0x000FAC, 2)
2843 /* reserved: SUITE(0x000FAC, 3) */
2844 #define WLAN_CIPHER_SUITE_CCMP SUITE(0x000FAC, 4)
2845 #define WLAN_CIPHER_SUITE_WEP104 SUITE(0x000FAC, 5)
2846 #define WLAN_CIPHER_SUITE_AES_CMAC SUITE(0x000FAC, 6)
2847 #define WLAN_CIPHER_SUITE_GCMP SUITE(0x000FAC, 8)
2848 #define WLAN_CIPHER_SUITE_GCMP_256 SUITE(0x000FAC, 9)
2849 #define WLAN_CIPHER_SUITE_CCMP_256 SUITE(0x000FAC, 10)
2850 #define WLAN_CIPHER_SUITE_BIP_GMAC_128 SUITE(0x000FAC, 11)
2851 #define WLAN_CIPHER_SUITE_BIP_GMAC_256 SUITE(0x000FAC, 12)
2852 #define WLAN_CIPHER_SUITE_BIP_CMAC_256 SUITE(0x000FAC, 13)
2853
2854 #define WLAN_CIPHER_SUITE_SMS4 SUITE(0x001472, 1)
2855
2856 /* AKM suite selectors */
2857 #define WLAN_AKM_SUITE_8021X SUITE(0x000FAC, 1)
2858 #define WLAN_AKM_SUITE_PSK SUITE(0x000FAC, 2)
2859 #define WLAN_AKM_SUITE_FT_8021X SUITE(0x000FAC, 3)
2860 #define WLAN_AKM_SUITE_FT_PSK SUITE(0x000FAC, 4)
2861 #define WLAN_AKM_SUITE_8021X_SHA256 SUITE(0x000FAC, 5)
2862 #define WLAN_AKM_SUITE_PSK_SHA256 SUITE(0x000FAC, 6)
2863 #define WLAN_AKM_SUITE_TDLS SUITE(0x000FAC, 7)
2864 #define WLAN_AKM_SUITE_SAE SUITE(0x000FAC, 8)
2865 #define WLAN_AKM_SUITE_FT_OVER_SAE SUITE(0x000FAC, 9)
2866 #define WLAN_AKM_SUITE_8021X_SUITE_B SUITE(0x000FAC, 11)
2867 #define WLAN_AKM_SUITE_8021X_SUITE_B_192 SUITE(0x000FAC, 12)
2868 #define WLAN_AKM_SUITE_FILS_SHA256 SUITE(0x000FAC, 14)
2869 #define WLAN_AKM_SUITE_FILS_SHA384 SUITE(0x000FAC, 15)
2870 #define WLAN_AKM_SUITE_FT_FILS_SHA256 SUITE(0x000FAC, 16)
2871 #define WLAN_AKM_SUITE_FT_FILS_SHA384 SUITE(0x000FAC, 17)
2872
2873 #define WLAN_MAX_KEY_LEN 32
2874
2875 #define WLAN_PMK_NAME_LEN 16
2876 #define WLAN_PMKID_LEN 16
2877 #define WLAN_PMK_LEN_EAP_LEAP 16
2878 #define WLAN_PMK_LEN 32
2879 #define WLAN_PMK_LEN_SUITE_B_192 48
2880
2881 #define WLAN_OUI_WFA 0x506f9a
2882 #define WLAN_OUI_TYPE_WFA_P2P 9
2883 #define WLAN_OUI_MICROSOFT 0x0050f2
2884 #define WLAN_OUI_TYPE_MICROSOFT_WPA 1
2885 #define WLAN_OUI_TYPE_MICROSOFT_WMM 2
2886 #define WLAN_OUI_TYPE_MICROSOFT_WPS 4
2887 #define WLAN_OUI_TYPE_MICROSOFT_TPC 8
2888
2889 /*
2890 * WMM/802.11e Tspec Element
2891 */
2892 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
2893 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
2894
2895 enum ieee80211_tspec_status_code {
2896 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2897 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2898 };
2899
2900 struct ieee80211_tspec_ie {
2901 u8 element_id;
2902 u8 len;
2903 u8 oui[3];
2904 u8 oui_type;
2905 u8 oui_subtype;
2906 u8 version;
2907 __le16 tsinfo;
2908 u8 tsinfo_resvd;
2909 __le16 nominal_msdu;
2910 __le16 max_msdu;
2911 __le32 min_service_int;
2912 __le32 max_service_int;
2913 __le32 inactivity_int;
2914 __le32 suspension_int;
2915 __le32 service_start_time;
2916 __le32 min_data_rate;
2917 __le32 mean_data_rate;
2918 __le32 peak_data_rate;
2919 __le32 max_burst_size;
2920 __le32 delay_bound;
2921 __le32 min_phy_rate;
2922 __le16 sba;
2923 __le16 medium_time;
2924 } __packed;
2925
2926 /**
2927 * ieee80211_get_qos_ctl - get pointer to qos control bytes
2928 * @hdr: the frame
2929 *
2930 * The qos ctrl bytes come after the frame_control, duration, seq_num
2931 * and 3 or 4 addresses of length ETH_ALEN.
2932 * 3 addr: 2 + 2 + 2 + 3*6 = 24
2933 * 4 addr: 2 + 2 + 2 + 4*6 = 30
2934 */
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)2935 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2936 {
2937 if (ieee80211_has_a4(hdr->frame_control))
2938 return (u8 *)hdr + 30;
2939 else
2940 return (u8 *)hdr + 24;
2941 }
2942
2943 /**
2944 * ieee80211_get_tid - get qos TID
2945 * @hdr: the frame
2946 */
ieee80211_get_tid(struct ieee80211_hdr * hdr)2947 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
2948 {
2949 u8 *qc = ieee80211_get_qos_ctl(hdr);
2950
2951 return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2952 }
2953
2954 /**
2955 * ieee80211_get_SA - get pointer to SA
2956 * @hdr: the frame
2957 *
2958 * Given an 802.11 frame, this function returns the offset
2959 * to the source address (SA). It does not verify that the
2960 * header is long enough to contain the address, and the
2961 * header must be long enough to contain the frame control
2962 * field.
2963 */
ieee80211_get_SA(struct ieee80211_hdr * hdr)2964 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2965 {
2966 if (ieee80211_has_a4(hdr->frame_control))
2967 return hdr->addr4;
2968 if (ieee80211_has_fromds(hdr->frame_control))
2969 return hdr->addr3;
2970 return hdr->addr2;
2971 }
2972
2973 /**
2974 * ieee80211_get_DA - get pointer to DA
2975 * @hdr: the frame
2976 *
2977 * Given an 802.11 frame, this function returns the offset
2978 * to the destination address (DA). It does not verify that
2979 * the header is long enough to contain the address, and the
2980 * header must be long enough to contain the frame control
2981 * field.
2982 */
ieee80211_get_DA(struct ieee80211_hdr * hdr)2983 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2984 {
2985 if (ieee80211_has_tods(hdr->frame_control))
2986 return hdr->addr3;
2987 else
2988 return hdr->addr1;
2989 }
2990
2991 /**
2992 * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2993 * @hdr: the frame (buffer must include at least the first octet of payload)
2994 */
_ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr * hdr)2995 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2996 {
2997 if (ieee80211_is_disassoc(hdr->frame_control) ||
2998 ieee80211_is_deauth(hdr->frame_control))
2999 return true;
3000
3001 if (ieee80211_is_action(hdr->frame_control)) {
3002 u8 *category;
3003
3004 /*
3005 * Action frames, excluding Public Action frames, are Robust
3006 * Management Frames. However, if we are looking at a Protected
3007 * frame, skip the check since the data may be encrypted and
3008 * the frame has already been found to be a Robust Management
3009 * Frame (by the other end).
3010 */
3011 if (ieee80211_has_protected(hdr->frame_control))
3012 return true;
3013 category = ((u8 *) hdr) + 24;
3014 return *category != WLAN_CATEGORY_PUBLIC &&
3015 *category != WLAN_CATEGORY_HT &&
3016 *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
3017 *category != WLAN_CATEGORY_SELF_PROTECTED &&
3018 *category != WLAN_CATEGORY_UNPROT_DMG &&
3019 *category != WLAN_CATEGORY_VHT &&
3020 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
3021 }
3022
3023 return false;
3024 }
3025
3026 /**
3027 * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
3028 * @skb: the skb containing the frame, length will be checked
3029 */
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)3030 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
3031 {
3032 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3033 return false;
3034 return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
3035 }
3036
3037 /**
3038 * ieee80211_is_public_action - check if frame is a public action frame
3039 * @hdr: the frame
3040 * @len: length of the frame
3041 */
ieee80211_is_public_action(struct ieee80211_hdr * hdr,size_t len)3042 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
3043 size_t len)
3044 {
3045 struct ieee80211_mgmt *mgmt = (void *)hdr;
3046
3047 if (len < IEEE80211_MIN_ACTION_SIZE)
3048 return false;
3049 if (!ieee80211_is_action(hdr->frame_control))
3050 return false;
3051 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
3052 }
3053
3054 /**
3055 * _ieee80211_is_group_privacy_action - check if frame is a group addressed
3056 * privacy action frame
3057 * @hdr: the frame
3058 */
_ieee80211_is_group_privacy_action(struct ieee80211_hdr * hdr)3059 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
3060 {
3061 struct ieee80211_mgmt *mgmt = (void *)hdr;
3062
3063 if (!ieee80211_is_action(hdr->frame_control) ||
3064 !is_multicast_ether_addr(hdr->addr1))
3065 return false;
3066
3067 return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
3068 mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
3069 }
3070
3071 /**
3072 * ieee80211_is_group_privacy_action - check if frame is a group addressed
3073 * privacy action frame
3074 * @skb: the skb containing the frame, length will be checked
3075 */
ieee80211_is_group_privacy_action(struct sk_buff * skb)3076 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
3077 {
3078 if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3079 return false;
3080 return _ieee80211_is_group_privacy_action((void *)skb->data);
3081 }
3082
3083 /**
3084 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
3085 * @tu: the TUs
3086 */
ieee80211_tu_to_usec(unsigned long tu)3087 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
3088 {
3089 return 1024 * tu;
3090 }
3091
3092 /**
3093 * ieee80211_check_tim - check if AID bit is set in TIM
3094 * @tim: the TIM IE
3095 * @tim_len: length of the TIM IE
3096 * @aid: the AID to look for
3097 */
ieee80211_check_tim(const struct ieee80211_tim_ie * tim,u8 tim_len,u16 aid)3098 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
3099 u8 tim_len, u16 aid)
3100 {
3101 u8 mask;
3102 u8 index, indexn1, indexn2;
3103
3104 if (unlikely(!tim || tim_len < sizeof(*tim)))
3105 return false;
3106
3107 aid &= 0x3fff;
3108 index = aid / 8;
3109 mask = 1 << (aid & 7);
3110
3111 indexn1 = tim->bitmap_ctrl & 0xfe;
3112 indexn2 = tim_len + indexn1 - 4;
3113
3114 if (index < indexn1 || index > indexn2)
3115 return false;
3116
3117 index -= indexn1;
3118
3119 return !!(tim->virtual_map[index] & mask);
3120 }
3121
3122 /**
3123 * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
3124 * @skb: the skb containing the frame, length will not be checked
3125 * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
3126 *
3127 * This function assumes the frame is a data frame, and that the network header
3128 * is in the correct place.
3129 */
ieee80211_get_tdls_action(struct sk_buff * skb,u32 hdr_size)3130 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
3131 {
3132 if (!skb_is_nonlinear(skb) &&
3133 skb->len > (skb_network_offset(skb) + 2)) {
3134 /* Point to where the indication of TDLS should start */
3135 const u8 *tdls_data = skb_network_header(skb) - 2;
3136
3137 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
3138 tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
3139 tdls_data[3] == WLAN_CATEGORY_TDLS)
3140 return tdls_data[4];
3141 }
3142
3143 return -1;
3144 }
3145
3146 /* convert time units */
3147 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
3148 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
3149
3150 /**
3151 * ieee80211_action_contains_tpc - checks if the frame contains TPC element
3152 * @skb: the skb containing the frame, length will be checked
3153 *
3154 * This function checks if it's either TPC report action frame or Link
3155 * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
3156 * and 8.5.7.5 accordingly.
3157 */
ieee80211_action_contains_tpc(struct sk_buff * skb)3158 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
3159 {
3160 struct ieee80211_mgmt *mgmt = (void *)skb->data;
3161
3162 if (!ieee80211_is_action(mgmt->frame_control))
3163 return false;
3164
3165 if (skb->len < IEEE80211_MIN_ACTION_SIZE +
3166 sizeof(mgmt->u.action.u.tpc_report))
3167 return false;
3168
3169 /*
3170 * TPC report - check that:
3171 * category = 0 (Spectrum Management) or 5 (Radio Measurement)
3172 * spectrum management action = 3 (TPC/Link Measurement report)
3173 * TPC report EID = 35
3174 * TPC report element length = 2
3175 *
3176 * The spectrum management's tpc_report struct is used here both for
3177 * parsing tpc_report and radio measurement's link measurement report
3178 * frame, since the relevant part is identical in both frames.
3179 */
3180 if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
3181 mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
3182 return false;
3183
3184 /* both spectrum mgmt and link measurement have same action code */
3185 if (mgmt->u.action.u.tpc_report.action_code !=
3186 WLAN_ACTION_SPCT_TPC_RPRT)
3187 return false;
3188
3189 if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
3190 mgmt->u.action.u.tpc_report.tpc_elem_length !=
3191 sizeof(struct ieee80211_tpc_report_ie))
3192 return false;
3193
3194 return true;
3195 }
3196
3197 struct element {
3198 u8 id;
3199 u8 datalen;
3200 u8 data[];
3201 } __packed;
3202
3203 /* element iteration helpers */
3204 #define for_each_element(_elem, _data, _datalen) \
3205 for (_elem = (const struct element *)(_data); \
3206 (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >= \
3207 (int)sizeof(*_elem) && \
3208 (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >= \
3209 (int)sizeof(*_elem) + _elem->datalen; \
3210 _elem = (const struct element *)(_elem->data + _elem->datalen))
3211
3212 #define for_each_element_id(element, _id, data, datalen) \
3213 for_each_element(element, data, datalen) \
3214 if (element->id == (_id))
3215
3216 #define for_each_element_extid(element, extid, data, datalen) \
3217 for_each_element(element, data, datalen) \
3218 if (element->id == WLAN_EID_EXTENSION && \
3219 element->datalen > 0 && \
3220 element->data[0] == (extid))
3221
3222 #define for_each_subelement(sub, element) \
3223 for_each_element(sub, (element)->data, (element)->datalen)
3224
3225 #define for_each_subelement_id(sub, id, element) \
3226 for_each_element_id(sub, id, (element)->data, (element)->datalen)
3227
3228 #define for_each_subelement_extid(sub, extid, element) \
3229 for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
3230
3231 /**
3232 * for_each_element_completed - determine if element parsing consumed all data
3233 * @element: element pointer after for_each_element() or friends
3234 * @data: same data pointer as passed to for_each_element() or friends
3235 * @datalen: same data length as passed to for_each_element() or friends
3236 *
3237 * This function returns %true if all the data was parsed or considered
3238 * while walking the elements. Only use this if your for_each_element()
3239 * loop cannot be broken out of, otherwise it always returns %false.
3240 *
3241 * If some data was malformed, this returns %false since the last parsed
3242 * element will not fill the whole remaining data.
3243 */
for_each_element_completed(const struct element * element,const void * data,size_t datalen)3244 static inline bool for_each_element_completed(const struct element *element,
3245 const void *data, size_t datalen)
3246 {
3247 return (const u8 *)element == (const u8 *)data + datalen;
3248 }
3249
3250 #endif /* LINUX_IEEE80211_H */
3251