4 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
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>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #ifndef __LINUX_IEEE80211_H
16 #define __LINUX_IEEE80211_H
21 * TA = transmitter address
22 * RA = receiver address
23 * DA = destination address
26 * ToDS FromDS A1(RA) A2(TA) A3 A4 Use
27 * -----------------------------------------------------------------
28 * 0 0 DA SA BSSID - IBSS/DLS
29 * 0 1 DA BSSID SA - AP -> STA
30 * 1 0 BSSID SA DA - AP <- STA
31 * 1 1 RA TA DA SA unspecified (WDS)
36 #define IEEE80211_FCTL_VERS 0x0003
37 #define IEEE80211_FCTL_FTYPE 0x000c
38 #define IEEE80211_FCTL_STYPE 0x00f0
39 #define IEEE80211_FCTL_TODS 0x0100
40 #define IEEE80211_FCTL_FROMDS 0x0200
41 #define IEEE80211_FCTL_MOREFRAGS 0x0400
42 #define IEEE80211_FCTL_RETRY 0x0800
43 #define IEEE80211_FCTL_PM 0x1000
44 #define IEEE80211_FCTL_MOREDATA 0x2000
45 #define IEEE80211_FCTL_PROTECTED 0x4000
46 #define IEEE80211_FCTL_ORDER 0x8000
48 #define IEEE80211_SCTL_FRAG 0x000F
49 #define IEEE80211_SCTL_SEQ 0xFFF0
51 #define IEEE80211_FTYPE_MGMT 0x0000
52 #define IEEE80211_FTYPE_CTL 0x0004
53 #define IEEE80211_FTYPE_DATA 0x0008
56 #define IEEE80211_STYPE_ASSOC_REQ 0x0000
57 #define IEEE80211_STYPE_ASSOC_RESP 0x0010
58 #define IEEE80211_STYPE_REASSOC_REQ 0x0020
59 #define IEEE80211_STYPE_REASSOC_RESP 0x0030
60 #define IEEE80211_STYPE_PROBE_REQ 0x0040
61 #define IEEE80211_STYPE_PROBE_RESP 0x0050
62 #define IEEE80211_STYPE_BEACON 0x0080
63 #define IEEE80211_STYPE_ATIM 0x0090
64 #define IEEE80211_STYPE_DISASSOC 0x00A0
65 #define IEEE80211_STYPE_AUTH 0x00B0
66 #define IEEE80211_STYPE_DEAUTH 0x00C0
67 #define IEEE80211_STYPE_ACTION 0x00D0
70 #define IEEE80211_STYPE_BACK_REQ 0x0080
71 #define IEEE80211_STYPE_BACK 0x0090
72 #define IEEE80211_STYPE_PSPOLL 0x00A0
73 #define IEEE80211_STYPE_RTS 0x00B0
74 #define IEEE80211_STYPE_CTS 0x00C0
75 #define IEEE80211_STYPE_ACK 0x00D0
76 #define IEEE80211_STYPE_CFEND 0x00E0
77 #define IEEE80211_STYPE_CFENDACK 0x00F0
80 #define IEEE80211_STYPE_DATA 0x0000
81 #define IEEE80211_STYPE_DATA_CFACK 0x0010
82 #define IEEE80211_STYPE_DATA_CFPOLL 0x0020
83 #define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
84 #define IEEE80211_STYPE_NULLFUNC 0x0040
85 #define IEEE80211_STYPE_CFACK 0x0050
86 #define IEEE80211_STYPE_CFPOLL 0x0060
87 #define IEEE80211_STYPE_CFACKPOLL 0x0070
88 #define IEEE80211_STYPE_QOS_DATA 0x0080
89 #define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
90 #define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
91 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
92 #define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
93 #define IEEE80211_STYPE_QOS_CFACK 0x00D0
94 #define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
95 #define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
98 /* miscellaneous IEEE 802.11 constants */
99 #define IEEE80211_MAX_FRAG_THRESHOLD 2352
100 #define IEEE80211_MAX_RTS_THRESHOLD 2353
101 #define IEEE80211_MAX_AID 2007
102 #define IEEE80211_MAX_TIM_LEN 251
103 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
106 802.11e clarifies the figure in section 7.1.2. The frame body is
107 up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
108 #define IEEE80211_MAX_DATA_LEN 2304
109 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
110 #define IEEE80211_MAX_FRAME_LEN 2352
112 #define IEEE80211_MAX_SSID_LEN 32
114 #define IEEE80211_MAX_MESH_ID_LEN 32
116 #define IEEE80211_QOS_CTL_LEN 2
118 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
120 #define IEEE80211_QOS_CTL_TID_MASK 0x000f
122 #define IEEE80211_QOS_CTL_EOSP 0x0010
124 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL 0x0000
125 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
126 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL 0x0040
127 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK 0x0060
128 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
130 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
131 /* Mesh Control 802.11s */
132 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
134 /* U-APSD queue for WMM IEs sent by AP */
135 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD (1<<7)
136 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK 0x0f
138 /* U-APSD queues for WMM IEs sent by STA */
139 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO (1<<0)
140 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI (1<<1)
141 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK (1<<2)
142 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE (1<<3)
143 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK 0x0f
145 /* U-APSD max SP length for WMM IEs sent by STA */
146 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0x00
147 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2 0x01
148 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4 0x02
149 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6 0x03
150 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK 0x03
151 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT 5
153 #define IEEE80211_HT_CTL_LEN 4
155 struct ieee80211_hdr {
156 __le16 frame_control;
163 } __attribute__ ((packed));
165 struct ieee80211_hdr_3addr {
166 __le16 frame_control;
172 } __attribute__ ((packed));
174 struct ieee80211_qos_hdr {
175 __le16 frame_control;
182 } __attribute__ ((packed));
185 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
186 * @fc: frame control bytes in little-endian byteorder
188 static inline int ieee80211_has_tods(__le16 fc)
190 return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
194 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
195 * @fc: frame control bytes in little-endian byteorder
197 static inline int ieee80211_has_fromds(__le16 fc)
199 return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
203 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
204 * @fc: frame control bytes in little-endian byteorder
206 static inline int ieee80211_has_a4(__le16 fc)
208 __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
209 return (fc & tmp) == tmp;
213 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
214 * @fc: frame control bytes in little-endian byteorder
216 static inline int ieee80211_has_morefrags(__le16 fc)
218 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
222 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
223 * @fc: frame control bytes in little-endian byteorder
225 static inline int ieee80211_has_retry(__le16 fc)
227 return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
231 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
232 * @fc: frame control bytes in little-endian byteorder
234 static inline int ieee80211_has_pm(__le16 fc)
236 return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
240 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
241 * @fc: frame control bytes in little-endian byteorder
243 static inline int ieee80211_has_moredata(__le16 fc)
245 return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
249 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
250 * @fc: frame control bytes in little-endian byteorder
252 static inline int ieee80211_has_protected(__le16 fc)
254 return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
258 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
259 * @fc: frame control bytes in little-endian byteorder
261 static inline int ieee80211_has_order(__le16 fc)
263 return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
267 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
268 * @fc: frame control bytes in little-endian byteorder
270 static inline int ieee80211_is_mgmt(__le16 fc)
272 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
273 cpu_to_le16(IEEE80211_FTYPE_MGMT);
277 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
278 * @fc: frame control bytes in little-endian byteorder
280 static inline int ieee80211_is_ctl(__le16 fc)
282 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
283 cpu_to_le16(IEEE80211_FTYPE_CTL);
287 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
288 * @fc: frame control bytes in little-endian byteorder
290 static inline int ieee80211_is_data(__le16 fc)
292 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
293 cpu_to_le16(IEEE80211_FTYPE_DATA);
297 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
298 * @fc: frame control bytes in little-endian byteorder
300 static inline int ieee80211_is_data_qos(__le16 fc)
303 * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
304 * to check the one bit
306 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
307 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
311 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
312 * @fc: frame control bytes in little-endian byteorder
314 static inline int ieee80211_is_data_present(__le16 fc)
317 * mask with 0x40 and test that that bit is clear to only return true
318 * for the data-containing substypes.
320 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
321 cpu_to_le16(IEEE80211_FTYPE_DATA);
325 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
326 * @fc: frame control bytes in little-endian byteorder
328 static inline int ieee80211_is_assoc_req(__le16 fc)
330 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
331 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
335 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
336 * @fc: frame control bytes in little-endian byteorder
338 static inline int ieee80211_is_assoc_resp(__le16 fc)
340 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
341 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
345 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
346 * @fc: frame control bytes in little-endian byteorder
348 static inline int ieee80211_is_reassoc_req(__le16 fc)
350 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
351 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
355 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
356 * @fc: frame control bytes in little-endian byteorder
358 static inline int ieee80211_is_reassoc_resp(__le16 fc)
360 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
361 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
365 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
366 * @fc: frame control bytes in little-endian byteorder
368 static inline int ieee80211_is_probe_req(__le16 fc)
370 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
371 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
375 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
376 * @fc: frame control bytes in little-endian byteorder
378 static inline int ieee80211_is_probe_resp(__le16 fc)
380 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
381 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
385 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
386 * @fc: frame control bytes in little-endian byteorder
388 static inline int ieee80211_is_beacon(__le16 fc)
390 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
391 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
395 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
396 * @fc: frame control bytes in little-endian byteorder
398 static inline int ieee80211_is_atim(__le16 fc)
400 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
401 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
405 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
406 * @fc: frame control bytes in little-endian byteorder
408 static inline int ieee80211_is_disassoc(__le16 fc)
410 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
411 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
415 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
416 * @fc: frame control bytes in little-endian byteorder
418 static inline int ieee80211_is_auth(__le16 fc)
420 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
421 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
425 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
426 * @fc: frame control bytes in little-endian byteorder
428 static inline int ieee80211_is_deauth(__le16 fc)
430 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
431 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
435 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
436 * @fc: frame control bytes in little-endian byteorder
438 static inline int ieee80211_is_action(__le16 fc)
440 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
441 cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
445 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
446 * @fc: frame control bytes in little-endian byteorder
448 static inline int ieee80211_is_back_req(__le16 fc)
450 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
451 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
455 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
456 * @fc: frame control bytes in little-endian byteorder
458 static inline int ieee80211_is_back(__le16 fc)
460 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
461 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
465 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
466 * @fc: frame control bytes in little-endian byteorder
468 static inline int ieee80211_is_pspoll(__le16 fc)
470 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
471 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
475 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
476 * @fc: frame control bytes in little-endian byteorder
478 static inline int ieee80211_is_rts(__le16 fc)
480 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
481 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
485 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
486 * @fc: frame control bytes in little-endian byteorder
488 static inline int ieee80211_is_cts(__le16 fc)
490 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
491 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
495 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
496 * @fc: frame control bytes in little-endian byteorder
498 static inline int ieee80211_is_ack(__le16 fc)
500 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
501 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
505 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
506 * @fc: frame control bytes in little-endian byteorder
508 static inline int ieee80211_is_cfend(__le16 fc)
510 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
511 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
515 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
516 * @fc: frame control bytes in little-endian byteorder
518 static inline int ieee80211_is_cfendack(__le16 fc)
520 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
521 cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
525 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
526 * @fc: frame control bytes in little-endian byteorder
528 static inline int ieee80211_is_nullfunc(__le16 fc)
530 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
531 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
535 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
536 * @fc: frame control bytes in little-endian byteorder
538 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
540 return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
541 cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
544 static inline unsigned int ieee80211_hdrlen(__le16 fc)
546 unsigned int hdrlen = 24;
548 if (ieee80211_has_a4(fc))
551 if (ieee80211_is_data_qos(fc)) {
552 hdrlen += IEEE80211_QOS_CTL_LEN;
553 if (ieee80211_has_order(fc))
554 hdrlen += IEEE80211_HT_CTL_LEN;
561 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
562 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
564 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
566 return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
569 struct ieee80211s_hdr {
575 } __attribute__ ((packed));
578 #define MESH_FLAGS_AE_A4 0x1
579 #define MESH_FLAGS_AE_A5_A6 0x2
580 #define MESH_FLAGS_AE 0x3
581 #define MESH_FLAGS_PS_DEEP 0x4
584 * struct ieee80211_quiet_ie
586 * This structure refers to "Quiet information element"
588 struct ieee80211_quiet_ie {
593 } __attribute__ ((packed));
596 * struct ieee80211_msrment_ie
598 * This structure refers to "Measurement Request/Report information element"
600 struct ieee80211_msrment_ie {
605 } __attribute__ ((packed));
608 * struct ieee80211_channel_sw_ie
610 * This structure refers to "Channel Switch Announcement information element"
612 struct ieee80211_channel_sw_ie {
616 } __attribute__ ((packed));
619 * struct ieee80211_tim
621 * This structure refers to "Traffic Indication Map information element"
623 struct ieee80211_tim_ie {
627 /* variable size: 1 - 251 bytes */
629 } __attribute__ ((packed));
632 * struct ieee80211_meshconf_ie
634 * This structure refers to "Mesh Configuration information element"
636 struct ieee80211_meshconf_ie {
644 } __attribute__ ((packed));
647 * struct ieee80211_rann_ie
649 * This structure refers to "Root Announcement information element"
651 struct ieee80211_rann_ie {
657 __le32 rann_interval;
659 } __attribute__ ((packed));
661 enum ieee80211_rann_flags {
662 RANN_FLAG_IS_GATE = 1 << 0,
665 #define WLAN_SA_QUERY_TR_ID_LEN 2
667 struct ieee80211_mgmt {
668 __le16 frame_control;
677 __le16 auth_transaction;
679 /* possibly followed by Challenge text */
681 } __attribute__ ((packed)) auth;
684 } __attribute__ ((packed)) deauth;
687 __le16 listen_interval;
688 /* followed by SSID and Supported rates */
690 } __attribute__ ((packed)) assoc_req;
695 /* followed by Supported rates */
697 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
700 __le16 listen_interval;
702 /* followed by SSID and Supported rates */
704 } __attribute__ ((packed)) reassoc_req;
707 } __attribute__ ((packed)) disassoc;
712 /* followed by some of SSID, Supported rates,
713 * FH Params, DS Params, CF Params, IBSS Params, TIM */
715 } __attribute__ ((packed)) beacon;
717 /* only variable items: SSID, Supported rates */
719 } __attribute__ ((packed)) probe_req;
724 /* followed by some of SSID, Supported rates,
725 * FH Params, DS Params, CF Params, IBSS Params */
727 } __attribute__ ((packed)) probe_resp;
736 } __attribute__ ((packed)) wme_action;
741 struct ieee80211_channel_sw_ie sw_elem;
742 } __attribute__((packed)) chan_switch;
748 struct ieee80211_msrment_ie msr_elem;
749 } __attribute__((packed)) measurement;
755 __le16 start_seq_num;
756 } __attribute__((packed)) addba_req;
763 } __attribute__((packed)) addba_resp;
768 } __attribute__((packed)) delba;
772 } __attribute__((packed)) self_prot;
776 } __attribute__((packed)) mesh_action;
779 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
780 } __attribute__ ((packed)) sa_query;
784 } __attribute__ ((packed)) ht_smps;
790 } __packed tdls_discover_resp;
792 } __attribute__ ((packed)) action;
794 } __attribute__ ((packed));
796 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
797 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY 127
799 /* mgmt header + 1 byte category code */
800 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
803 /* Management MIC information element (IEEE 802.11w) */
804 struct ieee80211_mmie {
808 u8 sequence_number[6];
810 } __attribute__ ((packed));
812 struct ieee80211_vendor_ie {
820 struct ieee80211_rts {
821 __le16 frame_control;
825 } __attribute__ ((packed));
827 struct ieee80211_cts {
828 __le16 frame_control;
831 } __attribute__ ((packed));
833 struct ieee80211_pspoll {
834 __le16 frame_control;
838 } __attribute__ ((packed));
842 /* Link-id information element */
843 struct ieee80211_tdls_lnkie {
844 u8 ie_type; /* Link Identifier IE */
851 struct ieee80211_tdls_data {
863 } __packed setup_req;
869 } __packed setup_resp;
874 } __packed setup_cfm;
882 } __packed discover_req;
887 * struct ieee80211_bar - HT Block Ack Request
889 * This structure refers to "HT BlockAckReq" as
890 * described in 802.11n draft section 7.2.1.7.1
892 struct ieee80211_bar {
893 __le16 frame_control;
898 __le16 start_seq_num;
899 } __attribute__((packed)) __aligned(4);
901 /* 802.11 BA(R) control masks */
902 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL 0x0000
903 #define IEEE80211_BAR_CTRL_MULTI_TID 0x0002
904 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
905 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
906 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
909 * struct ieee80211_ba - HT Block Ack
911 * This structure refers to "HT BlockAck" as
912 * described in 802.11n draft section 7.2.1.8.1
914 struct ieee80211_ba {
915 __le16 frame_control;
921 __le16 start_seq_num;
923 } __attribute__((packed));
925 #define IEEE80211_HT_MCS_MASK_LEN 10
928 * struct ieee80211_mcs_info - MCS information
930 * @rx_highest: highest supported RX rate. If set represents
931 * the highest supported RX data rate in units of 1 Mbps.
932 * If this field is 0 this value should not be used to
933 * consider the highest RX data rate supported.
934 * @tx_params: TX parameters
936 struct ieee80211_mcs_info {
937 u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
941 } __attribute__((packed));
943 /* 802.11n HT capability MSC set */
944 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
945 #define IEEE80211_HT_MCS_TX_DEFINED 0x01
946 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x02
947 /* value 0 == 1 stream etc */
948 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0C
949 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
950 #define IEEE80211_HT_MCS_TX_MAX_STREAMS 4
951 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION 0x10
954 * 802.11n D5.0 20.3.5 / 20.6 says:
955 * - indices 0 to 7 and 32 are single spatial stream
956 * - 8 to 31 are multiple spatial streams using equal modulation
957 * [8..15 for two streams, 16..23 for three and 24..31 for four]
958 * - remainder are multiple spatial streams using unequal modulation
960 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
961 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
962 (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
965 * struct ieee80211_ht_cap - HT capabilities
967 * This structure is the "HT capabilities element" as
968 * described in 802.11n D5.0 7.3.2.57
970 struct ieee80211_ht_cap {
972 u8 ampdu_params_info;
974 /* 16 bytes MCS information */
975 struct ieee80211_mcs_info mcs;
977 __le16 extended_ht_cap_info;
978 __le32 tx_BF_cap_info;
979 u8 antenna_selection_info;
980 } __attribute__ ((packed));
982 /* 802.11n HT capabilities masks (for cap_info) */
983 #define IEEE80211_HT_CAP_LDPC_CODING 0x0001
984 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 0x0002
985 #define IEEE80211_HT_CAP_SM_PS 0x000C
986 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
987 #define IEEE80211_HT_CAP_GRN_FLD 0x0010
988 #define IEEE80211_HT_CAP_SGI_20 0x0020
989 #define IEEE80211_HT_CAP_SGI_40 0x0040
990 #define IEEE80211_HT_CAP_TX_STBC 0x0080
991 #define IEEE80211_HT_CAP_RX_STBC 0x0300
992 #define IEEE80211_HT_CAP_RX_STBC_SHIFT 8
993 #define IEEE80211_HT_CAP_DELAY_BA 0x0400
994 #define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
995 #define IEEE80211_HT_CAP_DSSSCCK40 0x1000
996 #define IEEE80211_HT_CAP_RESERVED 0x2000
997 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT 0x4000
998 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT 0x8000
1000 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1001 #define IEEE80211_HT_EXT_CAP_PCO 0x0001
1002 #define IEEE80211_HT_EXT_CAP_PCO_TIME 0x0006
1003 #define IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT 1
1004 #define IEEE80211_HT_EXT_CAP_MCS_FB 0x0300
1005 #define IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT 8
1006 #define IEEE80211_HT_EXT_CAP_HTC_SUP 0x0400
1007 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER 0x0800
1009 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1010 #define IEEE80211_HT_AMPDU_PARM_FACTOR 0x03
1011 #define IEEE80211_HT_AMPDU_PARM_DENSITY 0x1C
1012 #define IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT 2
1015 * Maximum length of AMPDU that the STA can receive.
1016 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1018 enum ieee80211_max_ampdu_length_exp {
1019 IEEE80211_HT_MAX_AMPDU_8K = 0,
1020 IEEE80211_HT_MAX_AMPDU_16K = 1,
1021 IEEE80211_HT_MAX_AMPDU_32K = 2,
1022 IEEE80211_HT_MAX_AMPDU_64K = 3
1025 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1027 /* Minimum MPDU start spacing */
1028 enum ieee80211_min_mpdu_spacing {
1029 IEEE80211_HT_MPDU_DENSITY_NONE = 0, /* No restriction */
1030 IEEE80211_HT_MPDU_DENSITY_0_25 = 1, /* 1/4 usec */
1031 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 usec */
1032 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 usec */
1033 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 usec */
1034 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4 usec */
1035 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8 usec */
1036 IEEE80211_HT_MPDU_DENSITY_16 = 7 /* 16 usec */
1040 * struct ieee80211_ht_operation - HT operation IE
1042 * This structure is the "HT operation element" as
1043 * described in 802.11n-2009 7.3.2.57
1045 struct ieee80211_ht_operation {
1048 __le16 operation_mode;
1051 } __attribute__ ((packed));
1054 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET 0x03
1055 #define IEEE80211_HT_PARAM_CHA_SEC_NONE 0x00
1056 #define IEEE80211_HT_PARAM_CHA_SEC_ABOVE 0x01
1057 #define IEEE80211_HT_PARAM_CHA_SEC_BELOW 0x03
1058 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY 0x04
1059 #define IEEE80211_HT_PARAM_RIFS_MODE 0x08
1061 /* for operation_mode */
1062 #define IEEE80211_HT_OP_MODE_PROTECTION 0x0003
1063 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE 0
1064 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER 1
1065 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ 2
1066 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED 3
1067 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT 0x0004
1068 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT 0x0010
1070 /* for stbc_param */
1071 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON 0x0040
1072 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080
1073 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON 0x0100
1074 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT 0x0200
1075 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE 0x0400
1076 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE 0x0800
1079 /* block-ack parameters */
1080 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1081 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1082 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1083 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1084 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1087 * A-PMDU buffer sizes
1088 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1090 #define IEEE80211_MIN_AMPDU_BUF 0x8
1091 #define IEEE80211_MAX_AMPDU_BUF 0x40
1094 /* Spatial Multiplexing Power Save Modes (for capability) */
1095 #define WLAN_HT_CAP_SM_PS_STATIC 0
1096 #define WLAN_HT_CAP_SM_PS_DYNAMIC 1
1097 #define WLAN_HT_CAP_SM_PS_INVALID 2
1098 #define WLAN_HT_CAP_SM_PS_DISABLED 3
1100 /* for SM power control field lower two bits */
1101 #define WLAN_HT_SMPS_CONTROL_DISABLED 0
1102 #define WLAN_HT_SMPS_CONTROL_STATIC 1
1103 #define WLAN_HT_SMPS_CONTROL_DYNAMIC 3
1105 /* Authentication algorithms */
1106 #define WLAN_AUTH_OPEN 0
1107 #define WLAN_AUTH_SHARED_KEY 1
1108 #define WLAN_AUTH_FT 2
1109 #define WLAN_AUTH_SAE 3
1110 #define WLAN_AUTH_LEAP 128
1112 #define WLAN_AUTH_CHALLENGE_LEN 128
1114 #define WLAN_CAPABILITY_ESS (1<<0)
1115 #define WLAN_CAPABILITY_IBSS (1<<1)
1118 * A mesh STA sets the ESS and IBSS capability bits to zero.
1119 * however, this holds true for p2p probe responses (in the p2p_find
1122 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1123 (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1125 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
1126 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1127 #define WLAN_CAPABILITY_PRIVACY (1<<4)
1128 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
1129 #define WLAN_CAPABILITY_PBCC (1<<6)
1130 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1133 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
1134 #define WLAN_CAPABILITY_QOS (1<<9)
1135 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1136 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
1138 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE (1<<0)
1139 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE (1<<1)
1140 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED (1<<2)
1142 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC 0
1143 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA 1
1144 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI 2
1147 /* 802.11g ERP information element */
1148 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1149 #define WLAN_ERP_USE_PROTECTION (1<<1)
1150 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1152 /* WLAN_ERP_BARKER_PREAMBLE values */
1154 WLAN_ERP_PREAMBLE_SHORT = 0,
1155 WLAN_ERP_PREAMBLE_LONG = 1,
1159 enum ieee80211_statuscode {
1160 WLAN_STATUS_SUCCESS = 0,
1161 WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1162 WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1163 WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1164 WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1165 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1166 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1167 WLAN_STATUS_CHALLENGE_FAIL = 15,
1168 WLAN_STATUS_AUTH_TIMEOUT = 16,
1169 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1170 WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1172 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1173 WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1174 WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1176 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1177 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1178 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1180 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1181 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1183 WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1184 WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1186 WLAN_STATUS_INVALID_IE = 40,
1187 WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1188 WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1189 WLAN_STATUS_INVALID_AKMP = 43,
1190 WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1191 WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1192 WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1194 WLAN_STATUS_UNSPECIFIED_QOS = 32,
1195 WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1196 WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1197 WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1198 WLAN_STATUS_REQUEST_DECLINED = 37,
1199 WLAN_STATUS_INVALID_QOS_PARAM = 38,
1200 WLAN_STATUS_CHANGE_TSPEC = 39,
1201 WLAN_STATUS_WAIT_TS_DELAY = 47,
1202 WLAN_STATUS_NO_DIRECT_LINK = 48,
1203 WLAN_STATUS_STA_NOT_PRESENT = 49,
1204 WLAN_STATUS_STA_NOT_QSTA = 50,
1206 WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1207 WLAN_STATUS_FCG_NOT_SUPP = 78,
1208 WLAN_STATUS_STA_NO_TBTT = 78,
1213 enum ieee80211_reasoncode {
1214 WLAN_REASON_UNSPECIFIED = 1,
1215 WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1216 WLAN_REASON_DEAUTH_LEAVING = 3,
1217 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1218 WLAN_REASON_DISASSOC_AP_BUSY = 5,
1219 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1220 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1221 WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1222 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1224 WLAN_REASON_DISASSOC_BAD_POWER = 10,
1225 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1227 WLAN_REASON_INVALID_IE = 13,
1228 WLAN_REASON_MIC_FAILURE = 14,
1229 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1230 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1231 WLAN_REASON_IE_DIFFERENT = 17,
1232 WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1233 WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1234 WLAN_REASON_INVALID_AKMP = 20,
1235 WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1236 WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1237 WLAN_REASON_IEEE8021X_FAILED = 23,
1238 WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1240 WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1241 WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1242 WLAN_REASON_DISASSOC_LOW_ACK = 34,
1243 WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1244 WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1245 WLAN_REASON_QSTA_NOT_USE = 37,
1246 WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1247 WLAN_REASON_QSTA_TIMEOUT = 39,
1248 WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1250 WLAN_REASON_MESH_PEER_CANCELED = 52,
1251 WLAN_REASON_MESH_MAX_PEERS = 53,
1252 WLAN_REASON_MESH_CONFIG = 54,
1253 WLAN_REASON_MESH_CLOSE = 55,
1254 WLAN_REASON_MESH_MAX_RETRIES = 56,
1255 WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1256 WLAN_REASON_MESH_INVALID_GTK = 58,
1257 WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1258 WLAN_REASON_MESH_INVALID_SECURITY = 60,
1259 WLAN_REASON_MESH_PATH_ERROR = 61,
1260 WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1261 WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1262 WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1263 WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1264 WLAN_REASON_MESH_CHAN = 66,
1268 /* Information Element IDs */
1269 enum ieee80211_eid {
1271 WLAN_EID_SUPP_RATES = 1,
1272 WLAN_EID_FH_PARAMS = 2,
1273 WLAN_EID_DS_PARAMS = 3,
1274 WLAN_EID_CF_PARAMS = 4,
1276 WLAN_EID_IBSS_PARAMS = 6,
1277 WLAN_EID_CHALLENGE = 16,
1279 WLAN_EID_COUNTRY = 7,
1280 WLAN_EID_HP_PARAMS = 8,
1281 WLAN_EID_HP_TABLE = 9,
1282 WLAN_EID_REQUEST = 10,
1284 WLAN_EID_QBSS_LOAD = 11,
1285 WLAN_EID_EDCA_PARAM_SET = 12,
1286 WLAN_EID_TSPEC = 13,
1287 WLAN_EID_TCLAS = 14,
1288 WLAN_EID_SCHEDULE = 15,
1289 WLAN_EID_TS_DELAY = 43,
1290 WLAN_EID_TCLAS_PROCESSING = 44,
1291 WLAN_EID_QOS_CAPA = 46,
1293 WLAN_EID_LINK_ID = 101,
1295 WLAN_EID_MESH_CONFIG = 113,
1296 WLAN_EID_MESH_ID = 114,
1297 WLAN_EID_LINK_METRIC_REPORT = 115,
1298 WLAN_EID_CONGESTION_NOTIFICATION = 116,
1299 WLAN_EID_PEER_MGMT = 117,
1300 WLAN_EID_CHAN_SWITCH_PARAM = 118,
1301 WLAN_EID_MESH_AWAKE_WINDOW = 119,
1302 WLAN_EID_BEACON_TIMING = 120,
1303 WLAN_EID_MCCAOP_SETUP_REQ = 121,
1304 WLAN_EID_MCCAOP_SETUP_RESP = 122,
1305 WLAN_EID_MCCAOP_ADVERT = 123,
1306 WLAN_EID_MCCAOP_TEARDOWN = 124,
1307 WLAN_EID_GANN = 125,
1308 WLAN_EID_RANN = 126,
1309 WLAN_EID_PREQ = 130,
1310 WLAN_EID_PREP = 131,
1311 WLAN_EID_PERR = 132,
1313 WLAN_EID_PXUC = 138,
1314 WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1317 WLAN_EID_PWR_CONSTRAINT = 32,
1318 WLAN_EID_PWR_CAPABILITY = 33,
1319 WLAN_EID_TPC_REQUEST = 34,
1320 WLAN_EID_TPC_REPORT = 35,
1321 WLAN_EID_SUPPORTED_CHANNELS = 36,
1322 WLAN_EID_CHANNEL_SWITCH = 37,
1323 WLAN_EID_MEASURE_REQUEST = 38,
1324 WLAN_EID_MEASURE_REPORT = 39,
1325 WLAN_EID_QUIET = 40,
1326 WLAN_EID_IBSS_DFS = 41,
1328 WLAN_EID_ERP_INFO = 42,
1329 WLAN_EID_EXT_SUPP_RATES = 50,
1331 WLAN_EID_HT_CAPABILITY = 45,
1332 WLAN_EID_HT_OPERATION = 61,
1337 WLAN_EID_GENERIC = 221,
1338 WLAN_EID_VENDOR_SPECIFIC = 221,
1339 WLAN_EID_QOS_PARAMETER = 222,
1341 WLAN_EID_AP_CHAN_REPORT = 51,
1342 WLAN_EID_NEIGHBOR_REPORT = 52,
1344 WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1345 WLAN_EID_ANTENNA_INFO = 64,
1347 WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1348 WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1349 WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1350 WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1351 WLAN_EID_MULTIPLE_BSSID = 71,
1352 WLAN_EID_BSS_COEX_2040 = 72,
1353 WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1354 WLAN_EID_EXT_CAPABILITY = 127,
1356 WLAN_EID_MOBILITY_DOMAIN = 54,
1357 WLAN_EID_FAST_BSS_TRANSITION = 55,
1358 WLAN_EID_TIMEOUT_INTERVAL = 56,
1359 WLAN_EID_RIC_DATA = 57,
1360 WLAN_EID_RIC_DESCRIPTOR = 75,
1362 WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1363 WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1364 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1367 /* Action category code */
1368 enum ieee80211_category {
1369 WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1370 WLAN_CATEGORY_QOS = 1,
1371 WLAN_CATEGORY_DLS = 2,
1372 WLAN_CATEGORY_BACK = 3,
1373 WLAN_CATEGORY_PUBLIC = 4,
1374 WLAN_CATEGORY_HT = 7,
1375 WLAN_CATEGORY_SA_QUERY = 8,
1376 WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1377 WLAN_CATEGORY_TDLS = 12,
1378 WLAN_CATEGORY_MESH_ACTION = 13,
1379 WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1380 WLAN_CATEGORY_SELF_PROTECTED = 15,
1381 WLAN_CATEGORY_WMM = 17,
1382 WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1383 WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1386 /* SPECTRUM_MGMT action code */
1387 enum ieee80211_spectrum_mgmt_actioncode {
1388 WLAN_ACTION_SPCT_MSR_REQ = 0,
1389 WLAN_ACTION_SPCT_MSR_RPRT = 1,
1390 WLAN_ACTION_SPCT_TPC_REQ = 2,
1391 WLAN_ACTION_SPCT_TPC_RPRT = 3,
1392 WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1395 /* HT action codes */
1396 enum ieee80211_ht_actioncode {
1397 WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1398 WLAN_HT_ACTION_SMPS = 1,
1399 WLAN_HT_ACTION_PSMP = 2,
1400 WLAN_HT_ACTION_PCO_PHASE = 3,
1401 WLAN_HT_ACTION_CSI = 4,
1402 WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1403 WLAN_HT_ACTION_COMPRESSED_BF = 6,
1404 WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1407 /* Self Protected Action codes */
1408 enum ieee80211_self_protected_actioncode {
1409 WLAN_SP_RESERVED = 0,
1410 WLAN_SP_MESH_PEERING_OPEN = 1,
1411 WLAN_SP_MESH_PEERING_CONFIRM = 2,
1412 WLAN_SP_MESH_PEERING_CLOSE = 3,
1413 WLAN_SP_MGK_INFORM = 4,
1414 WLAN_SP_MGK_ACK = 5,
1417 /* Mesh action codes */
1418 enum ieee80211_mesh_actioncode {
1419 WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1420 WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1421 WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1422 WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1423 WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1424 WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1425 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1426 WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1427 WLAN_MESH_ACTION_MCCA_TEARDOWN,
1428 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1429 WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1432 /* Security key length */
1433 enum ieee80211_key_len {
1434 WLAN_KEY_LEN_WEP40 = 5,
1435 WLAN_KEY_LEN_WEP104 = 13,
1436 WLAN_KEY_LEN_CCMP = 16,
1437 WLAN_KEY_LEN_TKIP = 32,
1438 WLAN_KEY_LEN_AES_CMAC = 16,
1441 /* Public action codes */
1442 enum ieee80211_pub_actioncode {
1443 WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1446 /* TDLS action codes */
1447 enum ieee80211_tdls_actioncode {
1448 WLAN_TDLS_SETUP_REQUEST = 0,
1449 WLAN_TDLS_SETUP_RESPONSE = 1,
1450 WLAN_TDLS_SETUP_CONFIRM = 2,
1451 WLAN_TDLS_TEARDOWN = 3,
1452 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1453 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1454 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1455 WLAN_TDLS_PEER_PSM_REQUEST = 7,
1456 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1457 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1458 WLAN_TDLS_DISCOVERY_REQUEST = 10,
1462 * TDLS capabililites to be enabled in the 5th byte of the
1463 * @WLAN_EID_EXT_CAPABILITY information element
1465 #define WLAN_EXT_CAPA5_TDLS_ENABLED BIT(5)
1466 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED BIT(6)
1468 /* TDLS specific payload type in the LLC/SNAP header */
1469 #define WLAN_TDLS_SNAP_RFTYPE 0x2
1472 * enum - mesh synchronization method identifier
1474 * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1475 * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1476 * that will be specified in a vendor specific information element
1479 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1480 IEEE80211_SYNC_METHOD_VENDOR = 255,
1484 * enum - mesh path selection protocol identifier
1486 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1487 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1488 * be specified in a vendor specific information element
1491 IEEE80211_PATH_PROTOCOL_HWMP = 1,
1492 IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1496 * enum - mesh path selection metric identifier
1498 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1499 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1500 * specified in a vendor specific information element
1503 IEEE80211_PATH_METRIC_AIRTIME = 1,
1504 IEEE80211_PATH_METRIC_VENDOR = 255,
1509 * IEEE 802.11-2007 7.3.2.9 Country information element
1511 * Minimum length is 8 octets, ie len must be evenly
1515 /* Although the spec says 8 I'm seeing 6 in practice */
1516 #define IEEE80211_COUNTRY_IE_MIN_LEN 6
1518 /* The Country String field of the element shall be 3 octets in length */
1519 #define IEEE80211_COUNTRY_STRING_LEN 3
1522 * For regulatory extension stuff see IEEE 802.11-2007
1523 * Annex I (page 1141) and Annex J (page 1147). Also
1526 * When dot11RegulatoryClassesRequired is true and the
1527 * first_channel/reg_extension_id is >= 201 then the IE
1528 * compromises of the 'ext' struct represented below:
1530 * - Regulatory extension ID - when generating IE this just needs
1531 * to be monotonically increasing for each triplet passed in
1533 * - Regulatory class - index into set of rules
1534 * - Coverage class - index into air propagation time (Table 7-27),
1535 * in microseconds, you can compute the air propagation time from
1536 * the index by multiplying by 3, so index 10 yields a propagation
1537 * of 10 us. Valid values are 0-31, values 32-255 are not defined
1538 * yet. A value of 0 inicates air propagation of <= 1 us.
1540 * See also Table I.2 for Emission limit sets and table
1541 * I.3 for Behavior limit sets. Table J.1 indicates how to map
1542 * a reg_class to an emission limit set and behavior limit set.
1544 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1547 * Channels numbers in the IE must be monotonically increasing
1548 * if dot11RegulatoryClassesRequired is not true.
1550 * If dot11RegulatoryClassesRequired is true consecutive
1551 * subband triplets following a regulatory triplet shall
1552 * have monotonically increasing first_channel number fields.
1554 * Channel numbers shall not overlap.
1556 * Note that max_power is signed.
1558 struct ieee80211_country_ie_triplet {
1564 } __attribute__ ((packed)) chans;
1566 u8 reg_extension_id;
1569 } __attribute__ ((packed)) ext;
1571 } __attribute__ ((packed));
1573 enum ieee80211_timeout_interval_type {
1574 WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1575 WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1576 WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1579 /* BACK action code */
1580 enum ieee80211_back_actioncode {
1581 WLAN_ACTION_ADDBA_REQ = 0,
1582 WLAN_ACTION_ADDBA_RESP = 1,
1583 WLAN_ACTION_DELBA = 2,
1586 /* BACK (block-ack) parties */
1587 enum ieee80211_back_parties {
1588 WLAN_BACK_RECIPIENT = 0,
1589 WLAN_BACK_INITIATOR = 1,
1592 /* SA Query action */
1593 enum ieee80211_sa_query_action {
1594 WLAN_ACTION_SA_QUERY_REQUEST = 0,
1595 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1599 /* cipher suite selectors */
1600 #define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
1601 #define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
1602 #define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
1603 /* reserved: 0x000FAC03 */
1604 #define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
1605 #define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
1606 #define WLAN_CIPHER_SUITE_AES_CMAC 0x000FAC06
1608 #define WLAN_CIPHER_SUITE_SMS4 0x00147201
1610 /* AKM suite selectors */
1611 #define WLAN_AKM_SUITE_8021X 0x000FAC01
1612 #define WLAN_AKM_SUITE_PSK 0x000FAC02
1613 #define WLAN_AKM_SUITE_SAE 0x000FAC08
1614 #define WLAN_AKM_SUITE_FT_OVER_SAE 0x000FAC09
1616 #define WLAN_MAX_KEY_LEN 32
1618 #define WLAN_PMKID_LEN 16
1620 #define WLAN_OUI_WFA 0x506f9a
1621 #define WLAN_OUI_TYPE_WFA_P2P 9
1624 * WMM/802.11e Tspec Element
1626 #define IEEE80211_WMM_IE_TSPEC_TID_MASK 0x0F
1627 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT 1
1629 enum ieee80211_tspec_status_code {
1630 IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1631 IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1634 struct ieee80211_tspec_ie {
1643 __le16 nominal_msdu;
1645 __le32 min_service_int;
1646 __le32 max_service_int;
1647 __le32 inactivity_int;
1648 __le32 suspension_int;
1649 __le32 service_start_time;
1650 __le32 min_data_rate;
1651 __le32 mean_data_rate;
1652 __le32 peak_data_rate;
1653 __le32 max_burst_size;
1655 __le32 min_phy_rate;
1661 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1664 * The qos ctrl bytes come after the frame_control, duration, seq_num
1665 * and 3 or 4 addresses of length ETH_ALEN.
1666 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1667 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1669 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1671 if (ieee80211_has_a4(hdr->frame_control))
1672 return (u8 *)hdr + 30;
1674 return (u8 *)hdr + 24;
1678 * ieee80211_get_SA - get pointer to SA
1681 * Given an 802.11 frame, this function returns the offset
1682 * to the source address (SA). It does not verify that the
1683 * header is long enough to contain the address, and the
1684 * header must be long enough to contain the frame control
1687 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1689 if (ieee80211_has_a4(hdr->frame_control))
1691 if (ieee80211_has_fromds(hdr->frame_control))
1697 * ieee80211_get_DA - get pointer to DA
1700 * Given an 802.11 frame, this function returns the offset
1701 * to the destination address (DA). It does not verify that
1702 * the header is long enough to contain the address, and the
1703 * header must be long enough to contain the frame control
1706 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1708 if (ieee80211_has_tods(hdr->frame_control))
1715 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1716 * @hdr: the frame (buffer must include at least the first octet of payload)
1718 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1720 if (ieee80211_is_disassoc(hdr->frame_control) ||
1721 ieee80211_is_deauth(hdr->frame_control))
1724 if (ieee80211_is_action(hdr->frame_control)) {
1728 * Action frames, excluding Public Action frames, are Robust
1729 * Management Frames. However, if we are looking at a Protected
1730 * frame, skip the check since the data may be encrypted and
1731 * the frame has already been found to be a Robust Management
1732 * Frame (by the other end).
1734 if (ieee80211_has_protected(hdr->frame_control))
1736 category = ((u8 *) hdr) + 24;
1737 return *category != WLAN_CATEGORY_PUBLIC &&
1738 *category != WLAN_CATEGORY_HT &&
1739 *category != WLAN_CATEGORY_SELF_PROTECTED &&
1740 *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
1747 * ieee80211_is_public_action - check if frame is a public action frame
1749 * @len: length of the frame
1751 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
1754 struct ieee80211_mgmt *mgmt = (void *)hdr;
1756 if (len < IEEE80211_MIN_ACTION_SIZE)
1758 if (!ieee80211_is_action(hdr->frame_control))
1760 return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
1764 * ieee80211_fhss_chan_to_freq - get channel frequency
1765 * @channel: the FHSS channel
1767 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1768 * Ref IEEE 802.11-2007 section 14.6
1770 static inline int ieee80211_fhss_chan_to_freq(int channel)
1772 if ((channel > 1) && (channel < 96))
1773 return channel + 2400;
1779 * ieee80211_freq_to_fhss_chan - get channel
1780 * @freq: the channels frequency
1782 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1783 * Ref IEEE 802.11-2007 section 14.6
1785 static inline int ieee80211_freq_to_fhss_chan(int freq)
1787 if ((freq > 2401) && (freq < 2496))
1794 * ieee80211_dsss_chan_to_freq - get channel center frequency
1795 * @channel: the DSSS channel
1797 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1798 * Ref IEEE 802.11-2007 section 15.6
1800 static inline int ieee80211_dsss_chan_to_freq(int channel)
1802 if ((channel > 0) && (channel < 14))
1803 return 2407 + (channel * 5);
1804 else if (channel == 14)
1811 * ieee80211_freq_to_dsss_chan - get channel
1812 * @freq: the frequency
1814 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1815 * Ref IEEE 802.11-2007 section 15.6
1817 * This routine selects the channel with the closest center frequency.
1819 static inline int ieee80211_freq_to_dsss_chan(int freq)
1821 if ((freq >= 2410) && (freq < 2475))
1822 return (freq - 2405) / 5;
1823 else if ((freq >= 2482) && (freq < 2487))
1829 /* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1830 * Ref IEEE 802.11-2007 section 18.4.6.2
1832 * The channels and frequencies are the same as those defined for DSSS
1834 #define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1835 #define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1837 /* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1838 * Ref IEEE 802.11-2007 section 19.4.2
1840 #define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1841 #define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1844 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1845 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1846 * @channel: the OFDM channel
1848 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1849 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1851 static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1853 if ((channel > 0) && (channel <= 200) &&
1855 return s_freq + (channel * 5);
1861 * ieee80211_freq_to_ofdm_channel - get channel
1862 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1863 * @freq: the frequency
1865 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1866 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1868 * This routine selects the channel with the closest center frequency.
1870 static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1872 if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1874 return (freq + 2 - s_freq) / 5;
1880 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1883 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1889 * ieee80211_check_tim - check if AID bit is set in TIM
1891 * @tim_len: length of the TIM IE
1892 * @aid: the AID to look for
1894 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1895 u8 tim_len, u16 aid)
1898 u8 indexn0, indexn1, indexn2;
1900 if (unlikely(!tim || tim_len < sizeof(*tim)))
1905 mask = 1 << (aid & 7);
1907 indexn1 = tim->bitmap_ctrl & 0xfe;
1908 indexn2 = tim_len + indexn1 - 4;
1910 if (indexn0 < indexn1 || indexn0 > indexn2)
1915 return !!(tim->virtual_map[indexn0] & mask);
1918 #endif /* __LINUX_IEEE80211_H */