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