include/linux/ieee80211.h

   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 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #ifndef __LINUX_IEEE80211_H
  18 #define __LINUX_IEEE80211_H
  19
  20 /*
  21  * DS bit usage
  22  *
  23  * TA = transmitter address
  24  * RA = receiver address
  25  * DA = destination address
  26  * SA = source address
  27  *
  28  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  29  * -----------------------------------------------------------------
  30  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  31  *  0       1       DA      BSSID   SA      -       AP -> STA
  32  *  1       0       BSSID   SA      DA      -       AP <- STA
  33  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  34  */
  35
  36 #define FCS_LEN 4
  37
  38 #define IEEE80211_FCTL_VERS             0x0003
  39 #define IEEE80211_FCTL_FTYPE            0x000c
  40 #define IEEE80211_FCTL_STYPE            0x00f0
  41 #define IEEE80211_FCTL_TODS             0x0100
  42 #define IEEE80211_FCTL_FROMDS           0x0200
  43 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  44 #define IEEE80211_FCTL_RETRY            0x0800
  45 #define IEEE80211_FCTL_PM               0x1000
  46 #define IEEE80211_FCTL_MOREDATA         0x2000
  47 #define IEEE80211_FCTL_PROTECTED        0x4000
  48 #define IEEE80211_FCTL_ORDER            0x8000
  49 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  50
  51 #define IEEE80211_SCTL_FRAG             0x000F
  52 #define IEEE80211_SCTL_SEQ              0xFFF0
  53
  54 #define IEEE80211_FTYPE_MGMT            0x0000
  55 #define IEEE80211_FTYPE_CTL             0x0004
  56 #define IEEE80211_FTYPE_DATA            0x0008
  57 #define IEEE80211_FTYPE_EXT             0x000c
  58
  59 /* management */
  60 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  61 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  62 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  63 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  64 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  65 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  66 #define IEEE80211_STYPE_BEACON          0x0080
  67 #define IEEE80211_STYPE_ATIM            0x0090
  68 #define IEEE80211_STYPE_DISASSOC        0x00A0
  69 #define IEEE80211_STYPE_AUTH            0x00B0
  70 #define IEEE80211_STYPE_DEAUTH          0x00C0
  71 #define IEEE80211_STYPE_ACTION          0x00D0
  72
  73 /* control */
  74 #define IEEE80211_STYPE_CTL_EXT         0x0060
  75 #define IEEE80211_STYPE_BACK_REQ        0x0080
  76 #define IEEE80211_STYPE_BACK            0x0090
  77 #define IEEE80211_STYPE_PSPOLL          0x00A0
  78 #define IEEE80211_STYPE_RTS             0x00B0
  79 #define IEEE80211_STYPE_CTS             0x00C0
  80 #define IEEE80211_STYPE_ACK             0x00D0
  81 #define IEEE80211_STYPE_CFEND           0x00E0
  82 #define IEEE80211_STYPE_CFENDACK        0x00F0
  83
  84 /* data */
  85 #define IEEE80211_STYPE_DATA                    0x0000
  86 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  87 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  88 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  89 #define IEEE80211_STYPE_NULLFUNC                0x0040
  90 #define IEEE80211_STYPE_CFACK                   0x0050
  91 #define IEEE80211_STYPE_CFPOLL                  0x0060
  92 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  93 #define IEEE80211_STYPE_QOS_DATA                0x0080
  94 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  95 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  96 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  97 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  98 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
  99 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 100 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 101
 102 /* extension, added by 802.11ad */
 103 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 104
 105 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 106 #define IEEE80211_CTL_EXT_POLL          0x2000
 107 #define IEEE80211_CTL_EXT_SPR           0x3000
 108 #define IEEE80211_CTL_EXT_GRANT 0x4000
 109 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 110 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 111 #define IEEE80211_CTL_EXT_SSW           0x8000
 112 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 113 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 114
 115
 116 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 117 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 118 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 119
 120 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 121 {
 122         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 123 }
 124
 125 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 126 {
 127         return (sn1 + sn2) & IEEE80211_SN_MASK;
 128 }
 129
 130 static inline u16 ieee80211_sn_inc(u16 sn)
 131 {
 132         return ieee80211_sn_add(sn, 1);
 133 }
 134
 135 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 136 {
 137         return (sn1 - sn2) & IEEE80211_SN_MASK;
 138 }
 139
 140 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 141 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 142
 143 /* miscellaneous IEEE 802.11 constants */
 144 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 145 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 146 #define IEEE80211_MAX_AID               2007
 147 #define IEEE80211_MAX_TIM_LEN           251
 148 #define IEEE80211_MAX_MESH_PEERINGS     63
 149 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 150    6.2.1.1.2.
 151
 152    802.11e clarifies the figure in section 7.1.2. The frame body is
 153    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 154 #define IEEE80211_MAX_DATA_LEN          2304
 155 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 156  * to 7920 bytes, see 8.2.3 General frame format
 157  */
 158 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 159 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 160 #define IEEE80211_MAX_FRAME_LEN         2352
 161
 162 /* Maximal size of an A-MSDU */
 163 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 164 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 165
 166 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 167 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 168 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 169
 170 #define IEEE80211_MAX_SSID_LEN          32
 171
 172 #define IEEE80211_MAX_MESH_ID_LEN       32
 173
 174 #define IEEE80211_FIRST_TSPEC_TSID      8
 175 #define IEEE80211_NUM_TIDS              16
 176
 177 /* number of user priorities 802.11 uses */
 178 #define IEEE80211_NUM_UPS               8
 179
 180 #define IEEE80211_QOS_CTL_LEN           2
 181 /* 1d tag mask */
 182 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 183 /* TID mask */
 184 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 185 /* EOSP */
 186 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 187 /* ACK policy */
 188 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 189 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 190 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 191 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 192 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 193 /* A-MSDU 802.11n */
 194 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 195 /* Mesh Control 802.11s */
 196 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 197
 198 /* U-APSD queue for WMM IEs sent by AP */
 199 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 200 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 201
 202 /* U-APSD queues for WMM IEs sent by STA */
 203 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 204 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 205 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 206 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 207 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 208
 209 /* U-APSD max SP length for WMM IEs sent by STA */
 210 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 211 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 212 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 213 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 214 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 215 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 216
 217 #define IEEE80211_HT_CTL_LEN            4
 218
 219 struct ieee80211_hdr {
 220         __le16 frame_control;
 221         __le16 duration_id;
 222         u8 addr1[6];
 223         u8 addr2[6];
 224         u8 addr3[6];
 225         __le16 seq_ctrl;
 226         u8 addr4[6];
 227 } __packed __aligned(2);
 228
 229 struct ieee80211_hdr_3addr {
 230         __le16 frame_control;
 231         __le16 duration_id;
 232         u8 addr1[6];
 233         u8 addr2[6];
 234         u8 addr3[6];
 235         __le16 seq_ctrl;
 236 } __packed __aligned(2);
 237
 238 struct ieee80211_qos_hdr {
 239         __le16 frame_control;
 240         __le16 duration_id;
 241         u8 addr1[6];
 242         u8 addr2[6];
 243         u8 addr3[6];
 244         __le16 seq_ctrl;
 245         __le16 qos_ctrl;
 246 } __packed __aligned(2);
 247
 248 /**
 249  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 250  * @fc: frame control bytes in little-endian byteorder
 251  */
 252 static inline bool ieee80211_has_tods(__le16 fc)
 253 {
 254         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 255 }
 256
 257 /**
 258  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 259  * @fc: frame control bytes in little-endian byteorder
 260  */
 261 static inline bool ieee80211_has_fromds(__le16 fc)
 262 {
 263         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 264 }
 265
 266 /**
 267  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 268  * @fc: frame control bytes in little-endian byteorder
 269  */
 270 static inline bool ieee80211_has_a4(__le16 fc)
 271 {
 272         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 273         return (fc & tmp) == tmp;
 274 }
 275
 276 /**
 277  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 278  * @fc: frame control bytes in little-endian byteorder
 279  */
 280 static inline bool ieee80211_has_morefrags(__le16 fc)
 281 {
 282         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 283 }
 284
 285 /**
 286  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 287  * @fc: frame control bytes in little-endian byteorder
 288  */
 289 static inline bool ieee80211_has_retry(__le16 fc)
 290 {
 291         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 292 }
 293
 294 /**
 295  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 296  * @fc: frame control bytes in little-endian byteorder
 297  */
 298 static inline bool ieee80211_has_pm(__le16 fc)
 299 {
 300         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 301 }
 302
 303 /**
 304  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 305  * @fc: frame control bytes in little-endian byteorder
 306  */
 307 static inline bool ieee80211_has_moredata(__le16 fc)
 308 {
 309         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 310 }
 311
 312 /**
 313  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 314  * @fc: frame control bytes in little-endian byteorder
 315  */
 316 static inline bool ieee80211_has_protected(__le16 fc)
 317 {
 318         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 319 }
 320
 321 /**
 322  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 323  * @fc: frame control bytes in little-endian byteorder
 324  */
 325 static inline bool ieee80211_has_order(__le16 fc)
 326 {
 327         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 328 }
 329
 330 /**
 331  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 332  * @fc: frame control bytes in little-endian byteorder
 333  */
 334 static inline bool ieee80211_is_mgmt(__le16 fc)
 335 {
 336         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 337                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 338 }
 339
 340 /**
 341  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 342  * @fc: frame control bytes in little-endian byteorder
 343  */
 344 static inline bool ieee80211_is_ctl(__le16 fc)
 345 {
 346         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 347                cpu_to_le16(IEEE80211_FTYPE_CTL);
 348 }
 349
 350 /**
 351  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 352  * @fc: frame control bytes in little-endian byteorder
 353  */
 354 static inline bool ieee80211_is_data(__le16 fc)
 355 {
 356         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 357                cpu_to_le16(IEEE80211_FTYPE_DATA);
 358 }
 359
 360 /**
 361  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 362  * @fc: frame control bytes in little-endian byteorder
 363  */
 364 static inline bool ieee80211_is_data_qos(__le16 fc)
 365 {
 366         /*
 367          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 368          * to check the one bit
 369          */
 370         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 371                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 372 }
 373
 374 /**
 375  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 376  * @fc: frame control bytes in little-endian byteorder
 377  */
 378 static inline bool ieee80211_is_data_present(__le16 fc)
 379 {
 380         /*
 381          * mask with 0x40 and test that that bit is clear to only return true
 382          * for the data-containing substypes.
 383          */
 384         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 385                cpu_to_le16(IEEE80211_FTYPE_DATA);
 386 }
 387
 388 /**
 389  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 390  * @fc: frame control bytes in little-endian byteorder
 391  */
 392 static inline bool ieee80211_is_assoc_req(__le16 fc)
 393 {
 394         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 395                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 396 }
 397
 398 /**
 399  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 400  * @fc: frame control bytes in little-endian byteorder
 401  */
 402 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 403 {
 404         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 405                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 406 }
 407
 408 /**
 409  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 410  * @fc: frame control bytes in little-endian byteorder
 411  */
 412 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 413 {
 414         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 415                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 416 }
 417
 418 /**
 419  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 420  * @fc: frame control bytes in little-endian byteorder
 421  */
 422 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 423 {
 424         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 425                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 426 }
 427
 428 /**
 429  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 430  * @fc: frame control bytes in little-endian byteorder
 431  */
 432 static inline bool ieee80211_is_probe_req(__le16 fc)
 433 {
 434         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 435                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 436 }
 437
 438 /**
 439  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 440  * @fc: frame control bytes in little-endian byteorder
 441  */
 442 static inline bool ieee80211_is_probe_resp(__le16 fc)
 443 {
 444         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 445                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 446 }
 447
 448 /**
 449  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 450  * @fc: frame control bytes in little-endian byteorder
 451  */
 452 static inline bool ieee80211_is_beacon(__le16 fc)
 453 {
 454         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 455                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 456 }
 457
 458 /**
 459  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 460  * @fc: frame control bytes in little-endian byteorder
 461  */
 462 static inline bool ieee80211_is_atim(__le16 fc)
 463 {
 464         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 465                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 466 }
 467
 468 /**
 469  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 470  * @fc: frame control bytes in little-endian byteorder
 471  */
 472 static inline bool ieee80211_is_disassoc(__le16 fc)
 473 {
 474         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 475                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 476 }
 477
 478 /**
 479  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 480  * @fc: frame control bytes in little-endian byteorder
 481  */
 482 static inline bool ieee80211_is_auth(__le16 fc)
 483 {
 484         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 485                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 486 }
 487
 488 /**
 489  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 490  * @fc: frame control bytes in little-endian byteorder
 491  */
 492 static inline bool ieee80211_is_deauth(__le16 fc)
 493 {
 494         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 495                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 496 }
 497
 498 /**
 499  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 500  * @fc: frame control bytes in little-endian byteorder
 501  */
 502 static inline bool ieee80211_is_action(__le16 fc)
 503 {
 504         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 505                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 506 }
 507
 508 /**
 509  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 510  * @fc: frame control bytes in little-endian byteorder
 511  */
 512 static inline bool ieee80211_is_back_req(__le16 fc)
 513 {
 514         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 515                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 516 }
 517
 518 /**
 519  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 520  * @fc: frame control bytes in little-endian byteorder
 521  */
 522 static inline bool ieee80211_is_back(__le16 fc)
 523 {
 524         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 525                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 526 }
 527
 528 /**
 529  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 530  * @fc: frame control bytes in little-endian byteorder
 531  */
 532 static inline bool ieee80211_is_pspoll(__le16 fc)
 533 {
 534         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 535                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 536 }
 537
 538 /**
 539  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 540  * @fc: frame control bytes in little-endian byteorder
 541  */
 542 static inline bool ieee80211_is_rts(__le16 fc)
 543 {
 544         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 545                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 546 }
 547
 548 /**
 549  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 550  * @fc: frame control bytes in little-endian byteorder
 551  */
 552 static inline bool ieee80211_is_cts(__le16 fc)
 553 {
 554         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 555                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 556 }
 557
 558 /**
 559  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 560  * @fc: frame control bytes in little-endian byteorder
 561  */
 562 static inline bool ieee80211_is_ack(__le16 fc)
 563 {
 564         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 565                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 566 }
 567
 568 /**
 569  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 570  * @fc: frame control bytes in little-endian byteorder
 571  */
 572 static inline bool ieee80211_is_cfend(__le16 fc)
 573 {
 574         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 575                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 576 }
 577
 578 /**
 579  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 580  * @fc: frame control bytes in little-endian byteorder
 581  */
 582 static inline bool ieee80211_is_cfendack(__le16 fc)
 583 {
 584         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 585                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 586 }
 587
 588 /**
 589  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 590  * @fc: frame control bytes in little-endian byteorder
 591  */
 592 static inline bool ieee80211_is_nullfunc(__le16 fc)
 593 {
 594         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 595                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 596 }
 597
 598 /**
 599  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 600  * @fc: frame control bytes in little-endian byteorder
 601  */
 602 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 603 {
 604         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 605                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 606 }
 607
 608 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 609 {
 610         unsigned int hdrlen = 24;
 611
 612         if (ieee80211_has_a4(fc))
 613                 hdrlen = 30;
 614
 615         if (ieee80211_is_data_qos(fc)) {
 616                 hdrlen += IEEE80211_QOS_CTL_LEN;
 617                 if (ieee80211_has_order(fc))
 618                         hdrlen += IEEE80211_HT_CTL_LEN;
 619         }
 620
 621         return hdrlen;
 622 }
 623
 624 /**
 625  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 626  * @fc: frame control field in little-endian byteorder
 627  */
 628 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 629 {
 630         /* IEEE 802.11-2012, definition of "bufferable management frame";
 631          * note that this ignores the IBSS special case. */
 632         return ieee80211_is_mgmt(fc) &&
 633                (ieee80211_is_action(fc) ||
 634                 ieee80211_is_disassoc(fc) ||
 635                 ieee80211_is_deauth(fc));
 636 }
 637
 638 /**
 639  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 640  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 641  */
 642 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 643 {
 644         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 645 }
 646
 647 struct ieee80211s_hdr {
 648         u8 flags;
 649         u8 ttl;
 650         __le32 seqnum;
 651         u8 eaddr1[6];
 652         u8 eaddr2[6];
 653 } __packed __aligned(2);
 654
 655 /* Mesh flags */
 656 #define MESH_FLAGS_AE_A4        0x1
 657 #define MESH_FLAGS_AE_A5_A6     0x2
 658 #define MESH_FLAGS_AE           0x3
 659 #define MESH_FLAGS_PS_DEEP      0x4
 660
 661 /**
 662  * enum ieee80211_preq_flags - mesh PREQ element flags
 663  *
 664  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 665  */
 666 enum ieee80211_preq_flags {
 667         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 668 };
 669
 670 /**
 671  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 672  *
 673  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 674  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 675  */
 676 enum ieee80211_preq_target_flags {
 677         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 678         IEEE80211_PREQ_USN_FLAG = 1<<2,
 679 };
 680
 681 /**
 682  * struct ieee80211_quiet_ie
 683  *
 684  * This structure refers to "Quiet information element"
 685  */
 686 struct ieee80211_quiet_ie {
 687         u8 count;
 688         u8 period;
 689         __le16 duration;
 690         __le16 offset;
 691 } __packed;
 692
 693 /**
 694  * struct ieee80211_msrment_ie
 695  *
 696  * This structure refers to "Measurement Request/Report information element"
 697  */
 698 struct ieee80211_msrment_ie {
 699         u8 token;
 700         u8 mode;
 701         u8 type;
 702         u8 request[0];
 703 } __packed;
 704
 705 /**
 706  * struct ieee80211_channel_sw_ie
 707  *
 708  * This structure refers to "Channel Switch Announcement information element"
 709  */
 710 struct ieee80211_channel_sw_ie {
 711         u8 mode;
 712         u8 new_ch_num;
 713         u8 count;
 714 } __packed;
 715
 716 /**
 717  * struct ieee80211_ext_chansw_ie
 718  *
 719  * This structure represents the "Extended Channel Switch Announcement element"
 720  */
 721 struct ieee80211_ext_chansw_ie {
 722         u8 mode;
 723         u8 new_operating_class;
 724         u8 new_ch_num;
 725         u8 count;
 726 } __packed;
 727
 728 /**
 729  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 730  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 731  *      values here
 732  * This structure represents the "Secondary Channel Offset element"
 733  */
 734 struct ieee80211_sec_chan_offs_ie {
 735         u8 sec_chan_offs;
 736 } __packed;
 737
 738 /**
 739  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 740  *
 741  * This structure represents the "Mesh Channel Switch Paramters element"
 742  */
 743 struct ieee80211_mesh_chansw_params_ie {
 744         u8 mesh_ttl;
 745         u8 mesh_flags;
 746         __le16 mesh_reason;
 747         __le16 mesh_pre_value;
 748 } __packed;
 749
 750 /**
 751  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 752  */
 753 struct ieee80211_wide_bw_chansw_ie {
 754         u8 new_channel_width;
 755         u8 new_center_freq_seg0, new_center_freq_seg1;
 756 } __packed;
 757
 758 /**
 759  * struct ieee80211_tim
 760  *
 761  * This structure refers to "Traffic Indication Map information element"
 762  */
 763 struct ieee80211_tim_ie {
 764         u8 dtim_count;
 765         u8 dtim_period;
 766         u8 bitmap_ctrl;
 767         /* variable size: 1 - 251 bytes */
 768         u8 virtual_map[1];
 769 } __packed;
 770
 771 /**
 772  * struct ieee80211_meshconf_ie
 773  *
 774  * This structure refers to "Mesh Configuration information element"
 775  */
 776 struct ieee80211_meshconf_ie {
 777         u8 meshconf_psel;
 778         u8 meshconf_pmetric;
 779         u8 meshconf_congest;
 780         u8 meshconf_synch;
 781         u8 meshconf_auth;
 782         u8 meshconf_form;
 783         u8 meshconf_cap;
 784 } __packed;
 785
 786 /**
 787  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 788  *
 789  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 790  *      additional mesh peerings with other mesh STAs
 791  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 792  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 793  *      is ongoing
 794  */
 795 enum mesh_config_capab_flags {
 796         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 797         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 798         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 799 };
 800
 801 /**
 802  * mesh channel switch parameters element's flag indicator
 803  *
 804  */
 805 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 806 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 807 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 808
 809 /**
 810  * struct ieee80211_rann_ie
 811  *
 812  * This structure refers to "Root Announcement information element"
 813  */
 814 struct ieee80211_rann_ie {
 815         u8 rann_flags;
 816         u8 rann_hopcount;
 817         u8 rann_ttl;
 818         u8 rann_addr[6];
 819         __le32 rann_seq;
 820         __le32 rann_interval;
 821         __le32 rann_metric;
 822 } __packed;
 823
 824 enum ieee80211_rann_flags {
 825         RANN_FLAG_IS_GATE = 1 << 0,
 826 };
 827
 828 enum ieee80211_ht_chanwidth_values {
 829         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 830         IEEE80211_HT_CHANWIDTH_ANY = 1,
 831 };
 832
 833 /**
 834  * enum ieee80211_opmode_bits - VHT operating mode field bits
 835  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 836  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 837  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 838  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 839  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 840  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 841  *      (the NSS value is the value of this field + 1)
 842  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 843  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 844  *      using a beamforming steering matrix
 845  */
 846 enum ieee80211_vht_opmode_bits {
 847         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 848         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 849         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 850         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 851         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 852         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 853         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 854         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 855 };
 856
 857 #define WLAN_SA_QUERY_TR_ID_LEN 2
 858 #define WLAN_MEMBERSHIP_LEN 8
 859 #define WLAN_USER_POSITION_LEN 16
 860
 861 /**
 862  * struct ieee80211_tpc_report_ie
 863  *
 864  * This structure refers to "TPC Report element"
 865  */
 866 struct ieee80211_tpc_report_ie {
 867         u8 tx_power;
 868         u8 link_margin;
 869 } __packed;
 870
 871 struct ieee80211_mgmt {
 872         __le16 frame_control;
 873         __le16 duration;
 874         u8 da[6];
 875         u8 sa[6];
 876         u8 bssid[6];
 877         __le16 seq_ctrl;
 878         union {
 879                 struct {
 880                         __le16 auth_alg;
 881                         __le16 auth_transaction;
 882                         __le16 status_code;
 883                         /* possibly followed by Challenge text */
 884                         u8 variable[0];
 885                 } __packed auth;
 886                 struct {
 887                         __le16 reason_code;
 888                 } __packed deauth;
 889                 struct {
 890                         __le16 capab_info;
 891                         __le16 listen_interval;
 892                         /* followed by SSID and Supported rates */
 893                         u8 variable[0];
 894                 } __packed assoc_req;
 895                 struct {
 896                         __le16 capab_info;
 897                         __le16 status_code;
 898                         __le16 aid;
 899                         /* followed by Supported rates */
 900                         u8 variable[0];
 901                 } __packed assoc_resp, reassoc_resp;
 902                 struct {
 903                         __le16 capab_info;
 904                         __le16 listen_interval;
 905                         u8 current_ap[6];
 906                         /* followed by SSID and Supported rates */
 907                         u8 variable[0];
 908                 } __packed reassoc_req;
 909                 struct {
 910                         __le16 reason_code;
 911                 } __packed disassoc;
 912                 struct {
 913                         __le64 timestamp;
 914                         __le16 beacon_int;
 915                         __le16 capab_info;
 916                         /* followed by some of SSID, Supported rates,
 917                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 918                         u8 variable[0];
 919                 } __packed beacon;
 920                 struct {
 921                         /* only variable items: SSID, Supported rates */
 922                         u8 variable[0];
 923                 } __packed probe_req;
 924                 struct {
 925                         __le64 timestamp;
 926                         __le16 beacon_int;
 927                         __le16 capab_info;
 928                         /* followed by some of SSID, Supported rates,
 929                          * FH Params, DS Params, CF Params, IBSS Params */
 930                         u8 variable[0];
 931                 } __packed probe_resp;
 932                 struct {
 933                         u8 category;
 934                         union {
 935                                 struct {
 936                                         u8 action_code;
 937                                         u8 dialog_token;
 938                                         u8 status_code;
 939                                         u8 variable[0];
 940                                 } __packed wme_action;
 941                                 struct{
 942                                         u8 action_code;
 943                                         u8 variable[0];
 944                                 } __packed chan_switch;
 945                                 struct{
 946                                         u8 action_code;
 947                                         struct ieee80211_ext_chansw_ie data;
 948                                         u8 variable[0];
 949                                 } __packed ext_chan_switch;
 950                                 struct{
 951                                         u8 action_code;
 952                                         u8 dialog_token;
 953                                         u8 element_id;
 954                                         u8 length;
 955                                         struct ieee80211_msrment_ie msr_elem;
 956                                 } __packed measurement;
 957                                 struct{
 958                                         u8 action_code;
 959                                         u8 dialog_token;
 960                                         __le16 capab;
 961                                         __le16 timeout;
 962                                         __le16 start_seq_num;
 963                                 } __packed addba_req;
 964                                 struct{
 965                                         u8 action_code;
 966                                         u8 dialog_token;
 967                                         __le16 status;
 968                                         __le16 capab;
 969                                         __le16 timeout;
 970                                 } __packed addba_resp;
 971                                 struct{
 972                                         u8 action_code;
 973                                         __le16 params;
 974                                         __le16 reason_code;
 975                                 } __packed delba;
 976                                 struct {
 977                                         u8 action_code;
 978                                         u8 variable[0];
 979                                 } __packed self_prot;
 980                                 struct{
 981                                         u8 action_code;
 982                                         u8 variable[0];
 983                                 } __packed mesh_action;
 984                                 struct {
 985                                         u8 action;
 986                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 987                                 } __packed sa_query;
 988                                 struct {
 989                                         u8 action;
 990                                         u8 smps_control;
 991                                 } __packed ht_smps;
 992                                 struct {
 993                                         u8 action_code;
 994                                         u8 chanwidth;
 995                                 } __packed ht_notify_cw;
 996                                 struct {
 997                                         u8 action_code;
 998                                         u8 dialog_token;
 999                                         __le16 capability;
1000                                         u8 variable[0];
1001                                 } __packed tdls_discover_resp;
1002                                 struct {
1003                                         u8 action_code;
1004                                         u8 operating_mode;
1005                                 } __packed vht_opmode_notif;
1006                                 struct {
1007                                         u8 action_code;
1008                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1009                                         u8 position[WLAN_USER_POSITION_LEN];
1010                                 } __packed vht_group_notif;
1011                                 struct {
1012                                         u8 action_code;
1013                                         u8 dialog_token;
1014                                         u8 tpc_elem_id;
1015                                         u8 tpc_elem_length;
1016                                         struct ieee80211_tpc_report_ie tpc;
1017                                 } __packed tpc_report;
1018                                 struct {
1019                                         u8 action_code;
1020                                         u8 dialog_token;
1021                                         u8 follow_up;
1022                                         u8 tod[6];
1023                                         u8 toa[6];
1024                                         __le16 tod_error;
1025                                         __le16 toa_error;
1026                                         u8 variable[0];
1027                                 } __packed ftm;
1028                         } u;
1029                 } __packed action;
1030         } u;
1031 } __packed __aligned(2);
1032
1033 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1034 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1035
1036 /* mgmt header + 1 byte category code */
1037 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1038
1039
1040 /* Management MIC information element (IEEE 802.11w) */
1041 struct ieee80211_mmie {
1042         u8 element_id;
1043         u8 length;
1044         __le16 key_id;
1045         u8 sequence_number[6];
1046         u8 mic[8];
1047 } __packed;
1048
1049 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1050 struct ieee80211_mmie_16 {
1051         u8 element_id;
1052         u8 length;
1053         __le16 key_id;
1054         u8 sequence_number[6];
1055         u8 mic[16];
1056 } __packed;
1057
1058 struct ieee80211_vendor_ie {
1059         u8 element_id;
1060         u8 len;
1061         u8 oui[3];
1062         u8 oui_type;
1063 } __packed;
1064
1065 struct ieee80211_wmm_ac_param {
1066         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1067         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1068         __le16 txop_limit;
1069 } __packed;
1070
1071 struct ieee80211_wmm_param_ie {
1072         u8 element_id; /* Element ID: 221 (0xdd); */
1073         u8 len; /* Length: 24 */
1074         /* required fields for WMM version 1 */
1075         u8 oui[3]; /* 00:50:f2 */
1076         u8 oui_type; /* 2 */
1077         u8 oui_subtype; /* 1 */
1078         u8 version; /* 1 for WMM version 1.0 */
1079         u8 qos_info; /* AP/STA specific QoS info */
1080         u8 reserved; /* 0 */
1081         /* AC_BE, AC_BK, AC_VI, AC_VO */
1082         struct ieee80211_wmm_ac_param ac[4];
1083 } __packed;
1084
1085 /* Control frames */
1086 struct ieee80211_rts {
1087         __le16 frame_control;
1088         __le16 duration;
1089         u8 ra[6];
1090         u8 ta[6];
1091 } __packed __aligned(2);
1092
1093 struct ieee80211_cts {
1094         __le16 frame_control;
1095         __le16 duration;
1096         u8 ra[6];
1097 } __packed __aligned(2);
1098
1099 struct ieee80211_pspoll {
1100         __le16 frame_control;
1101         __le16 aid;
1102         u8 bssid[6];
1103         u8 ta[6];
1104 } __packed __aligned(2);
1105
1106 /* TDLS */
1107
1108 /* Channel switch timing */
1109 struct ieee80211_ch_switch_timing {
1110         __le16 switch_time;
1111         __le16 switch_timeout;
1112 } __packed;
1113
1114 /* Link-id information element */
1115 struct ieee80211_tdls_lnkie {
1116         u8 ie_type; /* Link Identifier IE */
1117         u8 ie_len;
1118         u8 bssid[6];
1119         u8 init_sta[6];
1120         u8 resp_sta[6];
1121 } __packed;
1122
1123 struct ieee80211_tdls_data {
1124         u8 da[6];
1125         u8 sa[6];
1126         __be16 ether_type;
1127         u8 payload_type;
1128         u8 category;
1129         u8 action_code;
1130         union {
1131                 struct {
1132                         u8 dialog_token;
1133                         __le16 capability;
1134                         u8 variable[0];
1135                 } __packed setup_req;
1136                 struct {
1137                         __le16 status_code;
1138                         u8 dialog_token;
1139                         __le16 capability;
1140                         u8 variable[0];
1141                 } __packed setup_resp;
1142                 struct {
1143                         __le16 status_code;
1144                         u8 dialog_token;
1145                         u8 variable[0];
1146                 } __packed setup_cfm;
1147                 struct {
1148                         __le16 reason_code;
1149                         u8 variable[0];
1150                 } __packed teardown;
1151                 struct {
1152                         u8 dialog_token;
1153                         u8 variable[0];
1154                 } __packed discover_req;
1155                 struct {
1156                         u8 target_channel;
1157                         u8 oper_class;
1158                         u8 variable[0];
1159                 } __packed chan_switch_req;
1160                 struct {
1161                         __le16 status_code;
1162                         u8 variable[0];
1163                 } __packed chan_switch_resp;
1164         } u;
1165 } __packed;
1166
1167 /*
1168  * Peer-to-Peer IE attribute related definitions.
1169  */
1170 /**
1171  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1172  */
1173 enum ieee80211_p2p_attr_id {
1174         IEEE80211_P2P_ATTR_STATUS = 0,
1175         IEEE80211_P2P_ATTR_MINOR_REASON,
1176         IEEE80211_P2P_ATTR_CAPABILITY,
1177         IEEE80211_P2P_ATTR_DEVICE_ID,
1178         IEEE80211_P2P_ATTR_GO_INTENT,
1179         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1180         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1181         IEEE80211_P2P_ATTR_GROUP_BSSID,
1182         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1183         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1184         IEEE80211_P2P_ATTR_MANAGABILITY,
1185         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1186         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1187         IEEE80211_P2P_ATTR_DEVICE_INFO,
1188         IEEE80211_P2P_ATTR_GROUP_INFO,
1189         IEEE80211_P2P_ATTR_GROUP_ID,
1190         IEEE80211_P2P_ATTR_INTERFACE,
1191         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1192         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1193         /* 19 - 220: Reserved */
1194         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1195
1196         IEEE80211_P2P_ATTR_MAX
1197 };
1198
1199 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1200 /* Typical max value used here */
1201 #define IEEE80211_P2P_NOA_DESC_MAX      4
1202
1203 struct ieee80211_p2p_noa_desc {
1204         u8 count;
1205         __le32 duration;
1206         __le32 interval;
1207         __le32 start_time;
1208 } __packed;
1209
1210 struct ieee80211_p2p_noa_attr {
1211         u8 index;
1212         u8 oppps_ctwindow;
1213         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1214 } __packed;
1215
1216 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1217 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1218
1219 /**
1220  * struct ieee80211_bar - HT Block Ack Request
1221  *
1222  * This structure refers to "HT BlockAckReq" as
1223  * described in 802.11n draft section 7.2.1.7.1
1224  */
1225 struct ieee80211_bar {
1226         __le16 frame_control;
1227         __le16 duration;
1228         __u8 ra[6];
1229         __u8 ta[6];
1230         __le16 control;
1231         __le16 start_seq_num;
1232 } __packed __aligned(4);
1233
1234 /* 802.11 BA(R) control masks */
1235 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1236 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1237 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1238 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1239 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1240
1241 /**
1242  * struct ieee80211_ba - HT Block Ack
1243  *
1244  * This structure refers to "HT BlockAck" as
1245  * described in 802.11n draft section 7.2.1.8.1
1246  */
1247 struct ieee80211_ba {
1248         __le16 frame_control;
1249         __le16 duration;
1250         u8 ra[6];
1251         u8 ta[6];
1252         __le16 control;
1253
1254         __le16 start_seq_num;
1255         u8 bitmap[8];
1256 } __packed;
1257
1258 #define IEEE80211_HT_MCS_MASK_LEN               10
1259
1260 /**
1261  * struct ieee80211_mcs_info - MCS information
1262  * @rx_mask: RX mask
1263  * @rx_highest: highest supported RX rate. If set represents
1264  *      the highest supported RX data rate in units of 1 Mbps.
1265  *      If this field is 0 this value should not be used to
1266  *      consider the highest RX data rate supported.
1267  * @tx_params: TX parameters
1268  */
1269 struct ieee80211_mcs_info {
1270         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1271         __le16 rx_highest;
1272         u8 tx_params;
1273         u8 reserved[3];
1274 } __packed;
1275
1276 /* 802.11n HT capability MSC set */
1277 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1278 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1279 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1280 /* value 0 == 1 stream etc */
1281 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1282 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1283 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1284 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1285
1286 /*
1287  * 802.11n D5.0 20.3.5 / 20.6 says:
1288  * - indices 0 to 7 and 32 are single spatial stream
1289  * - 8 to 31 are multiple spatial streams using equal modulation
1290  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1291  * - remainder are multiple spatial streams using unequal modulation
1292  */
1293 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1294 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1295         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1296
1297 /**
1298  * struct ieee80211_ht_cap - HT capabilities
1299  *
1300  * This structure is the "HT capabilities element" as
1301  * described in 802.11n D5.0 7.3.2.57
1302  */
1303 struct ieee80211_ht_cap {
1304         __le16 cap_info;
1305         u8 ampdu_params_info;
1306
1307         /* 16 bytes MCS information */
1308         struct ieee80211_mcs_info mcs;
1309
1310         __le16 extended_ht_cap_info;
1311         __le32 tx_BF_cap_info;
1312         u8 antenna_selection_info;
1313 } __packed;
1314
1315 /* 802.11n HT capabilities masks (for cap_info) */
1316 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1317 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1318 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1319 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1320 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1321 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1322 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1323 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1324 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1325 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1326 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1327 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1328 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1329 #define IEEE80211_HT_CAP_RESERVED               0x2000
1330 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1331 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1332
1333 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1334 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1335 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1336 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1337 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1338 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1339 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1340 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1341
1342 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1343 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1344 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1345 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1346
1347 /*
1348  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1349  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1350  */
1351 enum ieee80211_max_ampdu_length_exp {
1352         IEEE80211_HT_MAX_AMPDU_8K = 0,
1353         IEEE80211_HT_MAX_AMPDU_16K = 1,
1354         IEEE80211_HT_MAX_AMPDU_32K = 2,
1355         IEEE80211_HT_MAX_AMPDU_64K = 3
1356 };
1357
1358 /*
1359  * Maximum length of AMPDU that the STA can receive in VHT.
1360  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1361  */
1362 enum ieee80211_vht_max_ampdu_length_exp {
1363         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1364         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1365         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1366         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1367         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1368         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1369         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1370         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1371 };
1372
1373 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1374
1375 /* Minimum MPDU start spacing */
1376 enum ieee80211_min_mpdu_spacing {
1377         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1378         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1379         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1380         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1381         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1382         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1383         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1384         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1385 };
1386
1387 /**
1388  * struct ieee80211_ht_operation - HT operation IE
1389  *
1390  * This structure is the "HT operation element" as
1391  * described in 802.11n-2009 7.3.2.57
1392  */
1393 struct ieee80211_ht_operation {
1394         u8 primary_chan;
1395         u8 ht_param;
1396         __le16 operation_mode;
1397         __le16 stbc_param;
1398         u8 basic_set[16];
1399 } __packed;
1400
1401 /* for ht_param */
1402 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1403 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1404 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1405 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1406 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1407 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1408
1409 /* for operation_mode */
1410 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1411 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1412 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1413 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1414 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1415 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1416 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1417
1418 /* for stbc_param */
1419 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1420 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1421 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1422 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1423 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1424 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1425
1426
1427 /* block-ack parameters */
1428 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1429 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1430 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1431 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1432 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1433 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1434
1435 /*
1436  * A-PMDU buffer sizes
1437  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1438  */
1439 #define IEEE80211_MIN_AMPDU_BUF 0x8
1440 #define IEEE80211_MAX_AMPDU_BUF 0x40
1441
1442
1443 /* Spatial Multiplexing Power Save Modes (for capability) */
1444 #define WLAN_HT_CAP_SM_PS_STATIC        0
1445 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1446 #define WLAN_HT_CAP_SM_PS_INVALID       2
1447 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1448
1449 /* for SM power control field lower two bits */
1450 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1451 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1452 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1453
1454 /**
1455  * struct ieee80211_vht_mcs_info - VHT MCS information
1456  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1457  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1458  *      STA can receive. Rate expressed in units of 1 Mbps.
1459  *      If this field is 0 this value should not be used to
1460  *      consider the highest RX data rate supported.
1461  *      The top 3 bits of this field are reserved.
1462  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1463  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1464  *      STA can transmit. Rate expressed in units of 1 Mbps.
1465  *      If this field is 0 this value should not be used to
1466  *      consider the highest TX data rate supported.
1467  *      The top 3 bits of this field are reserved.
1468  */
1469 struct ieee80211_vht_mcs_info {
1470         __le16 rx_mcs_map;
1471         __le16 rx_highest;
1472         __le16 tx_mcs_map;
1473         __le16 tx_highest;
1474 } __packed;
1475
1476 /**
1477  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1478  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1479  *      number of streams
1480  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1481  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1482  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1483  *
1484  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1485  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1486  * both split into 8 subfields by number of streams. These values indicate
1487  * which MCSes are supported for the number of streams the value appears
1488  * for.
1489  */
1490 enum ieee80211_vht_mcs_support {
1491         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1492         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1493         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1494         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1495 };
1496
1497 /**
1498  * struct ieee80211_vht_cap - VHT capabilities
1499  *
1500  * This structure is the "VHT capabilities element" as
1501  * described in 802.11ac D3.0 8.4.2.160
1502  * @vht_cap_info: VHT capability info
1503  * @supp_mcs: VHT MCS supported rates
1504  */
1505 struct ieee80211_vht_cap {
1506         __le32 vht_cap_info;
1507         struct ieee80211_vht_mcs_info supp_mcs;
1508 } __packed;
1509
1510 /**
1511  * enum ieee80211_vht_chanwidth - VHT channel width
1512  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1513  *      determine the channel width (20 or 40 MHz)
1514  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1515  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1516  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1517  */
1518 enum ieee80211_vht_chanwidth {
1519         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1520         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1521         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1522         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1523 };
1524
1525 /**
1526  * struct ieee80211_vht_operation - VHT operation IE
1527  *
1528  * This structure is the "VHT operation element" as
1529  * described in 802.11ac D3.0 8.4.2.161
1530  * @chan_width: Operating channel width
1531  * @center_freq_seg1_idx: center freq segment 1 index
1532  * @center_freq_seg2_idx: center freq segment 2 index
1533  * @basic_mcs_set: VHT Basic MCS rate set
1534  */
1535 struct ieee80211_vht_operation {
1536         u8 chan_width;
1537         u8 center_freq_seg1_idx;
1538         u8 center_freq_seg2_idx;
1539         __le16 basic_mcs_set;
1540 } __packed;
1541
1542
1543 /* 802.11ac VHT Capabilities */
1544 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1545 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1546 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1547 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
1548 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1549 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1550 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1551 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1552 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1553 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1554 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1555 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1556 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1557 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1558 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1559 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1560 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1561 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1562 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1563                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1564 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1565 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1566                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1567 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1568 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1569 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1570 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1571 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1572 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1573                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1574 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1575 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1576 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1577 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1578
1579 /* Authentication algorithms */
1580 #define WLAN_AUTH_OPEN 0
1581 #define WLAN_AUTH_SHARED_KEY 1
1582 #define WLAN_AUTH_FT 2
1583 #define WLAN_AUTH_SAE 3
1584 #define WLAN_AUTH_LEAP 128
1585
1586 #define WLAN_AUTH_CHALLENGE_LEN 128
1587
1588 #define WLAN_CAPABILITY_ESS             (1<<0)
1589 #define WLAN_CAPABILITY_IBSS            (1<<1)
1590
1591 /*
1592  * A mesh STA sets the ESS and IBSS capability bits to zero.
1593  * however, this holds true for p2p probe responses (in the p2p_find
1594  * phase) as well.
1595  */
1596 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1597         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1598
1599 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1600 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1601 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1602 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1603 #define WLAN_CAPABILITY_PBCC            (1<<6)
1604 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1605
1606 /* 802.11h */
1607 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1608 #define WLAN_CAPABILITY_QOS             (1<<9)
1609 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1610 #define WLAN_CAPABILITY_APSD            (1<<11)
1611 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1612 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1613 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1614 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1615
1616 /* DMG (60gHz) 802.11ad */
1617 /* type - bits 0..1 */
1618 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1619 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1620 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1621 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1622
1623 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1624 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1625 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1626 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1627
1628 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1629 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1630
1631 /* measurement */
1632 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1633 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1634 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1635
1636 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1637 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1638 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1639
1640 /* 802.11g ERP information element */
1641 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1642 #define WLAN_ERP_USE_PROTECTION (1<<1)
1643 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1644
1645 /* WLAN_ERP_BARKER_PREAMBLE values */
1646 enum {
1647         WLAN_ERP_PREAMBLE_SHORT = 0,
1648         WLAN_ERP_PREAMBLE_LONG = 1,
1649 };
1650
1651 /* Band ID, 802.11ad #8.4.1.45 */
1652 enum {
1653         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1654         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1655         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1656         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1657         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1658         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1659 };
1660
1661 /* Status codes */
1662 enum ieee80211_statuscode {
1663         WLAN_STATUS_SUCCESS = 0,
1664         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1665         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1666         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1667         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1668         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1669         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1670         WLAN_STATUS_CHALLENGE_FAIL = 15,
1671         WLAN_STATUS_AUTH_TIMEOUT = 16,
1672         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1673         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1674         /* 802.11b */
1675         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1676         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1677         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1678         /* 802.11h */
1679         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1680         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1681         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1682         /* 802.11g */
1683         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1684         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1685         /* 802.11w */
1686         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1687         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1688         /* 802.11i */
1689         WLAN_STATUS_INVALID_IE = 40,
1690         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1691         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1692         WLAN_STATUS_INVALID_AKMP = 43,
1693         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1694         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1695         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1696         /* 802.11e */
1697         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1698         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1699         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1700         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1701         WLAN_STATUS_REQUEST_DECLINED = 37,
1702         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1703         WLAN_STATUS_CHANGE_TSPEC = 39,
1704         WLAN_STATUS_WAIT_TS_DELAY = 47,
1705         WLAN_STATUS_NO_DIRECT_LINK = 48,
1706         WLAN_STATUS_STA_NOT_PRESENT = 49,
1707         WLAN_STATUS_STA_NOT_QSTA = 50,
1708         /* 802.11s */
1709         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1710         WLAN_STATUS_FCG_NOT_SUPP = 78,
1711         WLAN_STATUS_STA_NO_TBTT = 78,
1712         /* 802.11ad */
1713         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1714         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1715         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1716         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1717         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1718         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1719         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1720         WLAN_STATUS_REJECT_DSE_BAND = 96,
1721         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1722         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1723 };
1724
1725
1726 /* Reason codes */
1727 enum ieee80211_reasoncode {
1728         WLAN_REASON_UNSPECIFIED = 1,
1729         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1730         WLAN_REASON_DEAUTH_LEAVING = 3,
1731         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1732         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1733         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1734         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1735         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1736         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1737         /* 802.11h */
1738         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1739         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1740         /* 802.11i */
1741         WLAN_REASON_INVALID_IE = 13,
1742         WLAN_REASON_MIC_FAILURE = 14,
1743         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1744         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1745         WLAN_REASON_IE_DIFFERENT = 17,
1746         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1747         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1748         WLAN_REASON_INVALID_AKMP = 20,
1749         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1750         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1751         WLAN_REASON_IEEE8021X_FAILED = 23,
1752         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1753         /* TDLS (802.11z) */
1754         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1755         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1756         /* 802.11e */
1757         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1758         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1759         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1760         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1761         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1762         WLAN_REASON_QSTA_NOT_USE = 37,
1763         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1764         WLAN_REASON_QSTA_TIMEOUT = 39,
1765         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1766         /* 802.11s */
1767         WLAN_REASON_MESH_PEER_CANCELED = 52,
1768         WLAN_REASON_MESH_MAX_PEERS = 53,
1769         WLAN_REASON_MESH_CONFIG = 54,
1770         WLAN_REASON_MESH_CLOSE = 55,
1771         WLAN_REASON_MESH_MAX_RETRIES = 56,
1772         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1773         WLAN_REASON_MESH_INVALID_GTK = 58,
1774         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1775         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1776         WLAN_REASON_MESH_PATH_ERROR = 61,
1777         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1778         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1779         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1780         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1781         WLAN_REASON_MESH_CHAN = 66,
1782 };
1783
1784
1785 /* Information Element IDs */
1786 enum ieee80211_eid {
1787         WLAN_EID_SSID = 0,
1788         WLAN_EID_SUPP_RATES = 1,
1789         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1790         WLAN_EID_DS_PARAMS = 3,
1791         WLAN_EID_CF_PARAMS = 4,
1792         WLAN_EID_TIM = 5,
1793         WLAN_EID_IBSS_PARAMS = 6,
1794         WLAN_EID_COUNTRY = 7,
1795         /* 8, 9 reserved */
1796         WLAN_EID_REQUEST = 10,
1797         WLAN_EID_QBSS_LOAD = 11,
1798         WLAN_EID_EDCA_PARAM_SET = 12,
1799         WLAN_EID_TSPEC = 13,
1800         WLAN_EID_TCLAS = 14,
1801         WLAN_EID_SCHEDULE = 15,
1802         WLAN_EID_CHALLENGE = 16,
1803         /* 17-31 reserved for challenge text extension */
1804         WLAN_EID_PWR_CONSTRAINT = 32,
1805         WLAN_EID_PWR_CAPABILITY = 33,
1806         WLAN_EID_TPC_REQUEST = 34,
1807         WLAN_EID_TPC_REPORT = 35,
1808         WLAN_EID_SUPPORTED_CHANNELS = 36,
1809         WLAN_EID_CHANNEL_SWITCH = 37,
1810         WLAN_EID_MEASURE_REQUEST = 38,
1811         WLAN_EID_MEASURE_REPORT = 39,
1812         WLAN_EID_QUIET = 40,
1813         WLAN_EID_IBSS_DFS = 41,
1814         WLAN_EID_ERP_INFO = 42,
1815         WLAN_EID_TS_DELAY = 43,
1816         WLAN_EID_TCLAS_PROCESSING = 44,
1817         WLAN_EID_HT_CAPABILITY = 45,
1818         WLAN_EID_QOS_CAPA = 46,
1819         /* 47 reserved for Broadcom */
1820         WLAN_EID_RSN = 48,
1821         WLAN_EID_802_15_COEX = 49,
1822         WLAN_EID_EXT_SUPP_RATES = 50,
1823         WLAN_EID_AP_CHAN_REPORT = 51,
1824         WLAN_EID_NEIGHBOR_REPORT = 52,
1825         WLAN_EID_RCPI = 53,
1826         WLAN_EID_MOBILITY_DOMAIN = 54,
1827         WLAN_EID_FAST_BSS_TRANSITION = 55,
1828         WLAN_EID_TIMEOUT_INTERVAL = 56,
1829         WLAN_EID_RIC_DATA = 57,
1830         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1831         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1832         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1833         WLAN_EID_HT_OPERATION = 61,
1834         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1835         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1836         WLAN_EID_ANTENNA_INFO = 64,
1837         WLAN_EID_RSNI = 65,
1838         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1839         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1840         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1841         WLAN_EID_TIME_ADVERTISEMENT = 69,
1842         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1843         WLAN_EID_MULTIPLE_BSSID = 71,
1844         WLAN_EID_BSS_COEX_2040 = 72,
1845         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1846         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1847         WLAN_EID_RIC_DESCRIPTOR = 75,
1848         WLAN_EID_MMIE = 76,
1849         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1850         WLAN_EID_EVENT_REQUEST = 78,
1851         WLAN_EID_EVENT_REPORT = 79,
1852         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1853         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1854         WLAN_EID_LOCATION_PARAMS = 82,
1855         WLAN_EID_NON_TX_BSSID_CAP =  83,
1856         WLAN_EID_SSID_LIST = 84,
1857         WLAN_EID_MULTI_BSSID_IDX = 85,
1858         WLAN_EID_FMS_DESCRIPTOR = 86,
1859         WLAN_EID_FMS_REQUEST = 87,
1860         WLAN_EID_FMS_RESPONSE = 88,
1861         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1862         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1863         WLAN_EID_TSF_REQUEST = 91,
1864         WLAN_EID_TSF_RESPOSNE = 92,
1865         WLAN_EID_WNM_SLEEP_MODE = 93,
1866         WLAN_EID_TIM_BCAST_REQ = 94,
1867         WLAN_EID_TIM_BCAST_RESP = 95,
1868         WLAN_EID_COLL_IF_REPORT = 96,
1869         WLAN_EID_CHANNEL_USAGE = 97,
1870         WLAN_EID_TIME_ZONE = 98,
1871         WLAN_EID_DMS_REQUEST = 99,
1872         WLAN_EID_DMS_RESPONSE = 100,
1873         WLAN_EID_LINK_ID = 101,
1874         WLAN_EID_WAKEUP_SCHEDUL = 102,
1875         /* 103 reserved */
1876         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1877         WLAN_EID_PTI_CONTROL = 105,
1878         WLAN_EID_PU_BUFFER_STATUS = 106,
1879         WLAN_EID_INTERWORKING = 107,
1880         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1881         WLAN_EID_EXPEDITED_BW_REQ = 109,
1882         WLAN_EID_QOS_MAP_SET = 110,
1883         WLAN_EID_ROAMING_CONSORTIUM = 111,
1884         WLAN_EID_EMERGENCY_ALERT = 112,
1885         WLAN_EID_MESH_CONFIG = 113,
1886         WLAN_EID_MESH_ID = 114,
1887         WLAN_EID_LINK_METRIC_REPORT = 115,
1888         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1889         WLAN_EID_PEER_MGMT = 117,
1890         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1891         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1892         WLAN_EID_BEACON_TIMING = 120,
1893         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1894         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1895         WLAN_EID_MCCAOP_ADVERT = 123,
1896         WLAN_EID_MCCAOP_TEARDOWN = 124,
1897         WLAN_EID_GANN = 125,
1898         WLAN_EID_RANN = 126,
1899         WLAN_EID_EXT_CAPABILITY = 127,
1900         /* 128, 129 reserved for Agere */
1901         WLAN_EID_PREQ = 130,
1902         WLAN_EID_PREP = 131,
1903         WLAN_EID_PERR = 132,
1904         /* 133-136 reserved for Cisco */
1905         WLAN_EID_PXU = 137,
1906         WLAN_EID_PXUC = 138,
1907         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1908         WLAN_EID_MIC = 140,
1909         WLAN_EID_DESTINATION_URI = 141,
1910         WLAN_EID_UAPSD_COEX = 142,
1911         WLAN_EID_WAKEUP_SCHEDULE = 143,
1912         WLAN_EID_EXT_SCHEDULE = 144,
1913         WLAN_EID_STA_AVAILABILITY = 145,
1914         WLAN_EID_DMG_TSPEC = 146,
1915         WLAN_EID_DMG_AT = 147,
1916         WLAN_EID_DMG_CAP = 148,
1917         /* 149 reserved for Cisco */
1918         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1919         WLAN_EID_DMG_OPERATION = 151,
1920         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1921         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1922         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1923         /* 155-156 reserved for Cisco */
1924         WLAN_EID_AWAKE_WINDOW = 157,
1925         WLAN_EID_MULTI_BAND = 158,
1926         WLAN_EID_ADDBA_EXT = 159,
1927         WLAN_EID_NEXT_PCP_LIST = 160,
1928         WLAN_EID_PCP_HANDOVER = 161,
1929         WLAN_EID_DMG_LINK_MARGIN = 162,
1930         WLAN_EID_SWITCHING_STREAM = 163,
1931         WLAN_EID_SESSION_TRANSITION = 164,
1932         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1933         WLAN_EID_CLUSTER_REPORT = 166,
1934         WLAN_EID_RELAY_CAP = 167,
1935         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1936         WLAN_EID_BEAM_LINK_MAINT = 169,
1937         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1938         WLAN_EID_U_PID = 171,
1939         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1940         /* 173 reserved for Symbol */
1941         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1942         WLAN_EID_QUIET_PERIOD_REQ = 175,
1943         /* 176 reserved for Symbol */
1944         WLAN_EID_QUIET_PERIOD_RESP = 177,
1945         /* 178-179 reserved for Symbol */
1946         /* 180 reserved for ISO/IEC 20011 */
1947         WLAN_EID_EPAC_POLICY = 182,
1948         WLAN_EID_CLISTER_TIME_OFF = 183,
1949         WLAN_EID_INTER_AC_PRIO = 184,
1950         WLAN_EID_SCS_DESCRIPTOR = 185,
1951         WLAN_EID_QLOAD_REPORT = 186,
1952         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1953         WLAN_EID_HL_STREAM_ID = 188,
1954         WLAN_EID_GCR_GROUP_ADDR = 189,
1955         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1956         WLAN_EID_VHT_CAPABILITY = 191,
1957         WLAN_EID_VHT_OPERATION = 192,
1958         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1959         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1960         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1961         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1962         WLAN_EID_AID = 197,
1963         WLAN_EID_QUIET_CHANNEL = 198,
1964         WLAN_EID_OPMODE_NOTIF = 199,
1965
1966         WLAN_EID_VENDOR_SPECIFIC = 221,
1967         WLAN_EID_QOS_PARAMETER = 222,
1968 };
1969
1970 /* Action category code */
1971 enum ieee80211_category {
1972         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1973         WLAN_CATEGORY_QOS = 1,
1974         WLAN_CATEGORY_DLS = 2,
1975         WLAN_CATEGORY_BACK = 3,
1976         WLAN_CATEGORY_PUBLIC = 4,
1977         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1978         WLAN_CATEGORY_HT = 7,
1979         WLAN_CATEGORY_SA_QUERY = 8,
1980         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1981         WLAN_CATEGORY_WNM = 10,
1982         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
1983         WLAN_CATEGORY_TDLS = 12,
1984         WLAN_CATEGORY_MESH_ACTION = 13,
1985         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1986         WLAN_CATEGORY_SELF_PROTECTED = 15,
1987         WLAN_CATEGORY_DMG = 16,
1988         WLAN_CATEGORY_WMM = 17,
1989         WLAN_CATEGORY_FST = 18,
1990         WLAN_CATEGORY_UNPROT_DMG = 20,
1991         WLAN_CATEGORY_VHT = 21,
1992         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1993         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1994 };
1995
1996 /* SPECTRUM_MGMT action code */
1997 enum ieee80211_spectrum_mgmt_actioncode {
1998         WLAN_ACTION_SPCT_MSR_REQ = 0,
1999         WLAN_ACTION_SPCT_MSR_RPRT = 1,
2000         WLAN_ACTION_SPCT_TPC_REQ = 2,
2001         WLAN_ACTION_SPCT_TPC_RPRT = 3,
2002         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2003 };
2004
2005 /* HT action codes */
2006 enum ieee80211_ht_actioncode {
2007         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2008         WLAN_HT_ACTION_SMPS = 1,
2009         WLAN_HT_ACTION_PSMP = 2,
2010         WLAN_HT_ACTION_PCO_PHASE = 3,
2011         WLAN_HT_ACTION_CSI = 4,
2012         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2013         WLAN_HT_ACTION_COMPRESSED_BF = 6,
2014         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2015 };
2016
2017 /* VHT action codes */
2018 enum ieee80211_vht_actioncode {
2019         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2020         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2021         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2022 };
2023
2024 /* Self Protected Action codes */
2025 enum ieee80211_self_protected_actioncode {
2026         WLAN_SP_RESERVED = 0,
2027         WLAN_SP_MESH_PEERING_OPEN = 1,
2028         WLAN_SP_MESH_PEERING_CONFIRM = 2,
2029         WLAN_SP_MESH_PEERING_CLOSE = 3,
2030         WLAN_SP_MGK_INFORM = 4,
2031         WLAN_SP_MGK_ACK = 5,
2032 };
2033
2034 /* Mesh action codes */
2035 enum ieee80211_mesh_actioncode {
2036         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2037         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2038         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2039         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2040         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2041         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2042         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2043         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2044         WLAN_MESH_ACTION_MCCA_TEARDOWN,
2045         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2046         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2047 };
2048
2049 /* Security key length */
2050 enum ieee80211_key_len {
2051         WLAN_KEY_LEN_WEP40 = 5,
2052         WLAN_KEY_LEN_WEP104 = 13,
2053         WLAN_KEY_LEN_CCMP = 16,
2054         WLAN_KEY_LEN_CCMP_256 = 32,
2055         WLAN_KEY_LEN_TKIP = 32,
2056         WLAN_KEY_LEN_AES_CMAC = 16,
2057         WLAN_KEY_LEN_SMS4 = 32,
2058         WLAN_KEY_LEN_GCMP = 16,
2059         WLAN_KEY_LEN_GCMP_256 = 32,
2060         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2061         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2062         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2063 };
2064
2065 #define IEEE80211_WEP_IV_LEN            4
2066 #define IEEE80211_WEP_ICV_LEN           4
2067 #define IEEE80211_CCMP_HDR_LEN          8
2068 #define IEEE80211_CCMP_MIC_LEN          8
2069 #define IEEE80211_CCMP_PN_LEN           6
2070 #define IEEE80211_CCMP_256_HDR_LEN      8
2071 #define IEEE80211_CCMP_256_MIC_LEN      16
2072 #define IEEE80211_CCMP_256_PN_LEN       6
2073 #define IEEE80211_TKIP_IV_LEN           8
2074 #define IEEE80211_TKIP_ICV_LEN          4
2075 #define IEEE80211_CMAC_PN_LEN           6
2076 #define IEEE80211_GMAC_PN_LEN           6
2077 #define IEEE80211_GCMP_HDR_LEN          8
2078 #define IEEE80211_GCMP_MIC_LEN          16
2079 #define IEEE80211_GCMP_PN_LEN           6
2080
2081 /* Public action codes */
2082 enum ieee80211_pub_actioncode {
2083         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2084         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2085 };
2086
2087 /* TDLS action codes */
2088 enum ieee80211_tdls_actioncode {
2089         WLAN_TDLS_SETUP_REQUEST = 0,
2090         WLAN_TDLS_SETUP_RESPONSE = 1,
2091         WLAN_TDLS_SETUP_CONFIRM = 2,
2092         WLAN_TDLS_TEARDOWN = 3,
2093         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2094         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2095         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2096         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2097         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2098         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2099         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2100 };
2101
2102 /* Extended Channel Switching capability to be set in the 1st byte of
2103  * the @WLAN_EID_EXT_CAPABILITY information element
2104  */
2105 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2106
2107 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2108 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2109 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2110 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2111
2112 /* Interworking capabilities are set in 7th bit of 4th byte of the
2113  * @WLAN_EID_EXT_CAPABILITY information element
2114  */
2115 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2116
2117 /*
2118  * TDLS capabililites to be enabled in the 5th byte of the
2119  * @WLAN_EID_EXT_CAPABILITY information element
2120  */
2121 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2122 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2123 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2124
2125 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
2126 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2127
2128 /* Defines the maximal number of MSDUs in an A-MSDU. */
2129 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
2130 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
2131
2132 /*
2133  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2134  * information element
2135  */
2136 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
2137
2138 /* TDLS specific payload type in the LLC/SNAP header */
2139 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2140
2141 /* BSS Coex IE information field bits */
2142 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2143
2144 /**
2145  * enum - mesh synchronization method identifier
2146  *
2147  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2148  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2149  *      that will be specified in a vendor specific information element
2150  */
2151 enum {
2152         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2153         IEEE80211_SYNC_METHOD_VENDOR = 255,
2154 };
2155
2156 /**
2157  * enum - mesh path selection protocol identifier
2158  *
2159  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2160  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2161  *      be specified in a vendor specific information element
2162  */
2163 enum {
2164         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2165         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2166 };
2167
2168 /**
2169  * enum - mesh path selection metric identifier
2170  *
2171  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2172  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2173  *      specified in a vendor specific information element
2174  */
2175 enum {
2176         IEEE80211_PATH_METRIC_AIRTIME = 1,
2177         IEEE80211_PATH_METRIC_VENDOR = 255,
2178 };
2179
2180 /**
2181  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2182  *
2183  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2184  *
2185  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2186  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2187  *      this value
2188  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2189  *      the proactive PREQ with proactive PREP subfield set to 0
2190  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2191  *      supports the proactive PREQ with proactive PREP subfield set to 1
2192  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2193  *      the proactive RANN
2194  */
2195 enum ieee80211_root_mode_identifier {
2196         IEEE80211_ROOTMODE_NO_ROOT = 0,
2197         IEEE80211_ROOTMODE_ROOT = 1,
2198         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2199         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2200         IEEE80211_PROACTIVE_RANN = 4,
2201 };
2202
2203 /*
2204  * IEEE 802.11-2007 7.3.2.9 Country information element
2205  *
2206  * Minimum length is 8 octets, ie len must be evenly
2207  * divisible by 2
2208  */
2209
2210 /* Although the spec says 8 I'm seeing 6 in practice */
2211 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2212
2213 /* The Country String field of the element shall be 3 octets in length */
2214 #define IEEE80211_COUNTRY_STRING_LEN    3
2215
2216 /*
2217  * For regulatory extension stuff see IEEE 802.11-2007
2218  * Annex I (page 1141) and Annex J (page 1147). Also
2219  * review 7.3.2.9.
2220  *
2221  * When dot11RegulatoryClassesRequired is true and the
2222  * first_channel/reg_extension_id is >= 201 then the IE
2223  * compromises of the 'ext' struct represented below:
2224  *
2225  *  - Regulatory extension ID - when generating IE this just needs
2226  *    to be monotonically increasing for each triplet passed in
2227  *    the IE
2228  *  - Regulatory class - index into set of rules
2229  *  - Coverage class - index into air propagation time (Table 7-27),
2230  *    in microseconds, you can compute the air propagation time from
2231  *    the index by multiplying by 3, so index 10 yields a propagation
2232  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2233  *    yet. A value of 0 inicates air propagation of <= 1 us.
2234  *
2235  *  See also Table I.2 for Emission limit sets and table
2236  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2237  *  a reg_class to an emission limit set and behavior limit set.
2238  */
2239 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2240
2241 /*
2242  *  Channels numbers in the IE must be monotonically increasing
2243  *  if dot11RegulatoryClassesRequired is not true.
2244  *
2245  *  If dot11RegulatoryClassesRequired is true consecutive
2246  *  subband triplets following a regulatory triplet shall
2247  *  have monotonically increasing first_channel number fields.
2248  *
2249  *  Channel numbers shall not overlap.
2250  *
2251  *  Note that max_power is signed.
2252  */
2253 struct ieee80211_country_ie_triplet {
2254         union {
2255                 struct {
2256                         u8 first_channel;
2257                         u8 num_channels;
2258                         s8 max_power;
2259                 } __packed chans;
2260                 struct {
2261                         u8 reg_extension_id;
2262                         u8 reg_class;
2263                         u8 coverage_class;
2264                 } __packed ext;
2265         };
2266 } __packed;
2267
2268 enum ieee80211_timeout_interval_type {
2269         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2270         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2271         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2272 };
2273
2274 /**
2275  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2276  * @type: type, see &enum ieee80211_timeout_interval_type
2277  * @value: timeout interval value
2278  */
2279 struct ieee80211_timeout_interval_ie {
2280         u8 type;
2281         __le32 value;
2282 } __packed;
2283
2284 /* BACK action code */
2285 enum ieee80211_back_actioncode {
2286         WLAN_ACTION_ADDBA_REQ = 0,
2287         WLAN_ACTION_ADDBA_RESP = 1,
2288         WLAN_ACTION_DELBA = 2,
2289 };
2290
2291 /* BACK (block-ack) parties */
2292 enum ieee80211_back_parties {
2293         WLAN_BACK_RECIPIENT = 0,
2294         WLAN_BACK_INITIATOR = 1,
2295 };
2296
2297 /* SA Query action */
2298 enum ieee80211_sa_query_action {
2299         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2300         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2301 };
2302
2303
2304 /* cipher suite selectors */
2305 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2306 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2307 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2308 /* reserved:                            0x000FAC03 */
2309 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2310 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2311 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2312 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2313 #define WLAN_CIPHER_SUITE_GCMP_256      0x000FAC09
2314 #define WLAN_CIPHER_SUITE_CCMP_256      0x000FAC0A
2315 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  0x000FAC0B
2316 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  0x000FAC0C
2317 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  0x000FAC0D
2318
2319 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2320
2321 /* AKM suite selectors */
2322 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2323 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2324 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
2325 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2326
2327 #define WLAN_MAX_KEY_LEN                32
2328
2329 #define WLAN_PMKID_LEN                  16
2330
2331 #define WLAN_OUI_WFA                    0x506f9a
2332 #define WLAN_OUI_TYPE_WFA_P2P           9
2333 #define WLAN_OUI_MICROSOFT              0x0050f2
2334 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2335 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2336 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2337
2338 /*
2339  * WMM/802.11e Tspec Element
2340  */
2341 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2342 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2343
2344 enum ieee80211_tspec_status_code {
2345         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2346         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2347 };
2348
2349 struct ieee80211_tspec_ie {
2350         u8 element_id;
2351         u8 len;
2352         u8 oui[3];
2353         u8 oui_type;
2354         u8 oui_subtype;
2355         u8 version;
2356         __le16 tsinfo;
2357         u8 tsinfo_resvd;
2358         __le16 nominal_msdu;
2359         __le16 max_msdu;
2360         __le32 min_service_int;
2361         __le32 max_service_int;
2362         __le32 inactivity_int;
2363         __le32 suspension_int;
2364         __le32 service_start_time;
2365         __le32 min_data_rate;
2366         __le32 mean_data_rate;
2367         __le32 peak_data_rate;
2368         __le32 max_burst_size;
2369         __le32 delay_bound;
2370         __le32 min_phy_rate;
2371         __le16 sba;
2372         __le16 medium_time;
2373 } __packed;
2374
2375 /**
2376  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2377  * @hdr: the frame
2378  *
2379  * The qos ctrl bytes come after the frame_control, duration, seq_num
2380  * and 3 or 4 addresses of length ETH_ALEN.
2381  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2382  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2383  */
2384 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2385 {
2386         if (ieee80211_has_a4(hdr->frame_control))
2387                 return (u8 *)hdr + 30;
2388         else
2389                 return (u8 *)hdr + 24;
2390 }
2391
2392 /**
2393  * ieee80211_get_SA - get pointer to SA
2394  * @hdr: the frame
2395  *
2396  * Given an 802.11 frame, this function returns the offset
2397  * to the source address (SA). It does not verify that the
2398  * header is long enough to contain the address, and the
2399  * header must be long enough to contain the frame control
2400  * field.
2401  */
2402 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2403 {
2404         if (ieee80211_has_a4(hdr->frame_control))
2405                 return hdr->addr4;
2406         if (ieee80211_has_fromds(hdr->frame_control))
2407                 return hdr->addr3;
2408         return hdr->addr2;
2409 }
2410
2411 /**
2412  * ieee80211_get_DA - get pointer to DA
2413  * @hdr: the frame
2414  *
2415  * Given an 802.11 frame, this function returns the offset
2416  * to the destination address (DA). It does not verify that
2417  * the header is long enough to contain the address, and the
2418  * header must be long enough to contain the frame control
2419  * field.
2420  */
2421 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2422 {
2423         if (ieee80211_has_tods(hdr->frame_control))
2424                 return hdr->addr3;
2425         else
2426                 return hdr->addr1;
2427 }
2428
2429 /**
2430  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2431  * @hdr: the frame (buffer must include at least the first octet of payload)
2432  */
2433 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2434 {
2435         if (ieee80211_is_disassoc(hdr->frame_control) ||
2436             ieee80211_is_deauth(hdr->frame_control))
2437                 return true;
2438
2439         if (ieee80211_is_action(hdr->frame_control)) {
2440                 u8 *category;
2441
2442                 /*
2443                  * Action frames, excluding Public Action frames, are Robust
2444                  * Management Frames. However, if we are looking at a Protected
2445                  * frame, skip the check since the data may be encrypted and
2446                  * the frame has already been found to be a Robust Management
2447                  * Frame (by the other end).
2448                  */
2449                 if (ieee80211_has_protected(hdr->frame_control))
2450                         return true;
2451                 category = ((u8 *) hdr) + 24;
2452                 return *category != WLAN_CATEGORY_PUBLIC &&
2453                         *category != WLAN_CATEGORY_HT &&
2454                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
2455                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2456                         *category != WLAN_CATEGORY_UNPROT_DMG &&
2457                         *category != WLAN_CATEGORY_VHT &&
2458                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2459         }
2460
2461         return false;
2462 }
2463
2464 /**
2465  * ieee80211_is_public_action - check if frame is a public action frame
2466  * @hdr: the frame
2467  * @len: length of the frame
2468  */
2469 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2470                                               size_t len)
2471 {
2472         struct ieee80211_mgmt *mgmt = (void *)hdr;
2473
2474         if (len < IEEE80211_MIN_ACTION_SIZE)
2475                 return false;
2476         if (!ieee80211_is_action(hdr->frame_control))
2477                 return false;
2478         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2479 }
2480
2481 /**
2482  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2483  * @tu: the TUs
2484  */
2485 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2486 {
2487         return 1024 * tu;
2488 }
2489
2490 /**
2491  * ieee80211_check_tim - check if AID bit is set in TIM
2492  * @tim: the TIM IE
2493  * @tim_len: length of the TIM IE
2494  * @aid: the AID to look for
2495  */
2496 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2497                                        u8 tim_len, u16 aid)
2498 {
2499         u8 mask;
2500         u8 indexn0, indexn1, indexn2;
2501
2502         if (unlikely(!tim || tim_len < sizeof(*tim)))
2503                 return false;
2504
2505         aid &= 0x3fff;
2506         indexn0 = aid / 8;
2507         mask  = 1 << (aid & 7);
2508
2509         indexn1 = tim->bitmap_ctrl & 0xfe;
2510         indexn2 = tim_len + indexn1 - 4;
2511
2512         if (indexn0 < indexn1 || indexn0 > indexn2)
2513                 return false;
2514
2515         indexn0 -= indexn1;
2516
2517         return !!(tim->virtual_map[indexn0] & mask);
2518 }
2519
2520 /* convert time units */
2521 #define TU_TO_JIFFIES(x)       (usecs_to_jiffies((x) * 1024))
2522 #define TU_TO_EXP_TIME(x)      (jiffies + TU_TO_JIFFIES(x))
2523
2524 #endif /* __LINUX_IEEE80211_H */