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 /**
 648  * ieee80211_is_frag - check if a frame is a fragment
 649  * @hdr: 802.11 header of the frame
 650  */
 651 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 652 {
 653         return ieee80211_has_morefrags(hdr->frame_control) ||
 654                hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 655 }
 656
 657 struct ieee80211s_hdr {
 658         u8 flags;
 659         u8 ttl;
 660         __le32 seqnum;
 661         u8 eaddr1[6];
 662         u8 eaddr2[6];
 663 } __packed __aligned(2);
 664
 665 /* Mesh flags */
 666 #define MESH_FLAGS_AE_A4        0x1
 667 #define MESH_FLAGS_AE_A5_A6     0x2
 668 #define MESH_FLAGS_AE           0x3
 669 #define MESH_FLAGS_PS_DEEP      0x4
 670
 671 /**
 672  * enum ieee80211_preq_flags - mesh PREQ element flags
 673  *
 674  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 675  */
 676 enum ieee80211_preq_flags {
 677         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 678 };
 679
 680 /**
 681  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 682  *
 683  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 684  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 685  */
 686 enum ieee80211_preq_target_flags {
 687         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 688         IEEE80211_PREQ_USN_FLAG = 1<<2,
 689 };
 690
 691 /**
 692  * struct ieee80211_quiet_ie
 693  *
 694  * This structure refers to "Quiet information element"
 695  */
 696 struct ieee80211_quiet_ie {
 697         u8 count;
 698         u8 period;
 699         __le16 duration;
 700         __le16 offset;
 701 } __packed;
 702
 703 /**
 704  * struct ieee80211_msrment_ie
 705  *
 706  * This structure refers to "Measurement Request/Report information element"
 707  */
 708 struct ieee80211_msrment_ie {
 709         u8 token;
 710         u8 mode;
 711         u8 type;
 712         u8 request[0];
 713 } __packed;
 714
 715 /**
 716  * struct ieee80211_channel_sw_ie
 717  *
 718  * This structure refers to "Channel Switch Announcement information element"
 719  */
 720 struct ieee80211_channel_sw_ie {
 721         u8 mode;
 722         u8 new_ch_num;
 723         u8 count;
 724 } __packed;
 725
 726 /**
 727  * struct ieee80211_ext_chansw_ie
 728  *
 729  * This structure represents the "Extended Channel Switch Announcement element"
 730  */
 731 struct ieee80211_ext_chansw_ie {
 732         u8 mode;
 733         u8 new_operating_class;
 734         u8 new_ch_num;
 735         u8 count;
 736 } __packed;
 737
 738 /**
 739  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 740  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 741  *      values here
 742  * This structure represents the "Secondary Channel Offset element"
 743  */
 744 struct ieee80211_sec_chan_offs_ie {
 745         u8 sec_chan_offs;
 746 } __packed;
 747
 748 /**
 749  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 750  *
 751  * This structure represents the "Mesh Channel Switch Paramters element"
 752  */
 753 struct ieee80211_mesh_chansw_params_ie {
 754         u8 mesh_ttl;
 755         u8 mesh_flags;
 756         __le16 mesh_reason;
 757         __le16 mesh_pre_value;
 758 } __packed;
 759
 760 /**
 761  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 762  */
 763 struct ieee80211_wide_bw_chansw_ie {
 764         u8 new_channel_width;
 765         u8 new_center_freq_seg0, new_center_freq_seg1;
 766 } __packed;
 767
 768 /**
 769  * struct ieee80211_tim
 770  *
 771  * This structure refers to "Traffic Indication Map information element"
 772  */
 773 struct ieee80211_tim_ie {
 774         u8 dtim_count;
 775         u8 dtim_period;
 776         u8 bitmap_ctrl;
 777         /* variable size: 1 - 251 bytes */
 778         u8 virtual_map[1];
 779 } __packed;
 780
 781 /**
 782  * struct ieee80211_meshconf_ie
 783  *
 784  * This structure refers to "Mesh Configuration information element"
 785  */
 786 struct ieee80211_meshconf_ie {
 787         u8 meshconf_psel;
 788         u8 meshconf_pmetric;
 789         u8 meshconf_congest;
 790         u8 meshconf_synch;
 791         u8 meshconf_auth;
 792         u8 meshconf_form;
 793         u8 meshconf_cap;
 794 } __packed;
 795
 796 /**
 797  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 798  *
 799  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 800  *      additional mesh peerings with other mesh STAs
 801  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 802  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 803  *      is ongoing
 804  */
 805 enum mesh_config_capab_flags {
 806         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 807         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 808         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 809 };
 810
 811 /**
 812  * mesh channel switch parameters element's flag indicator
 813  *
 814  */
 815 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 816 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 817 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 818
 819 /**
 820  * struct ieee80211_rann_ie
 821  *
 822  * This structure refers to "Root Announcement information element"
 823  */
 824 struct ieee80211_rann_ie {
 825         u8 rann_flags;
 826         u8 rann_hopcount;
 827         u8 rann_ttl;
 828         u8 rann_addr[6];
 829         __le32 rann_seq;
 830         __le32 rann_interval;
 831         __le32 rann_metric;
 832 } __packed;
 833
 834 enum ieee80211_rann_flags {
 835         RANN_FLAG_IS_GATE = 1 << 0,
 836 };
 837
 838 enum ieee80211_ht_chanwidth_values {
 839         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 840         IEEE80211_HT_CHANWIDTH_ANY = 1,
 841 };
 842
 843 /**
 844  * enum ieee80211_opmode_bits - VHT operating mode field bits
 845  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 846  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 847  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 848  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 849  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 850  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 851  *      (the NSS value is the value of this field + 1)
 852  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 853  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 854  *      using a beamforming steering matrix
 855  */
 856 enum ieee80211_vht_opmode_bits {
 857         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 858         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 859         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 860         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 861         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 862         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 863         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 864         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 865 };
 866
 867 #define WLAN_SA_QUERY_TR_ID_LEN 2
 868 #define WLAN_MEMBERSHIP_LEN 8
 869 #define WLAN_USER_POSITION_LEN 16
 870
 871 /**
 872  * struct ieee80211_tpc_report_ie
 873  *
 874  * This structure refers to "TPC Report element"
 875  */
 876 struct ieee80211_tpc_report_ie {
 877         u8 tx_power;
 878         u8 link_margin;
 879 } __packed;
 880
 881 struct ieee80211_mgmt {
 882         __le16 frame_control;
 883         __le16 duration;
 884         u8 da[6];
 885         u8 sa[6];
 886         u8 bssid[6];
 887         __le16 seq_ctrl;
 888         union {
 889                 struct {
 890                         __le16 auth_alg;
 891                         __le16 auth_transaction;
 892                         __le16 status_code;
 893                         /* possibly followed by Challenge text */
 894                         u8 variable[0];
 895                 } __packed auth;
 896                 struct {
 897                         __le16 reason_code;
 898                 } __packed deauth;
 899                 struct {
 900                         __le16 capab_info;
 901                         __le16 listen_interval;
 902                         /* followed by SSID and Supported rates */
 903                         u8 variable[0];
 904                 } __packed assoc_req;
 905                 struct {
 906                         __le16 capab_info;
 907                         __le16 status_code;
 908                         __le16 aid;
 909                         /* followed by Supported rates */
 910                         u8 variable[0];
 911                 } __packed assoc_resp, reassoc_resp;
 912                 struct {
 913                         __le16 capab_info;
 914                         __le16 listen_interval;
 915                         u8 current_ap[6];
 916                         /* followed by SSID and Supported rates */
 917                         u8 variable[0];
 918                 } __packed reassoc_req;
 919                 struct {
 920                         __le16 reason_code;
 921                 } __packed disassoc;
 922                 struct {
 923                         __le64 timestamp;
 924                         __le16 beacon_int;
 925                         __le16 capab_info;
 926                         /* followed by some of SSID, Supported rates,
 927                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 928                         u8 variable[0];
 929                 } __packed beacon;
 930                 struct {
 931                         /* only variable items: SSID, Supported rates */
 932                         u8 variable[0];
 933                 } __packed probe_req;
 934                 struct {
 935                         __le64 timestamp;
 936                         __le16 beacon_int;
 937                         __le16 capab_info;
 938                         /* followed by some of SSID, Supported rates,
 939                          * FH Params, DS Params, CF Params, IBSS Params */
 940                         u8 variable[0];
 941                 } __packed probe_resp;
 942                 struct {
 943                         u8 category;
 944                         union {
 945                                 struct {
 946                                         u8 action_code;
 947                                         u8 dialog_token;
 948                                         u8 status_code;
 949                                         u8 variable[0];
 950                                 } __packed wme_action;
 951                                 struct{
 952                                         u8 action_code;
 953                                         u8 variable[0];
 954                                 } __packed chan_switch;
 955                                 struct{
 956                                         u8 action_code;
 957                                         struct ieee80211_ext_chansw_ie data;
 958                                         u8 variable[0];
 959                                 } __packed ext_chan_switch;
 960                                 struct{
 961                                         u8 action_code;
 962                                         u8 dialog_token;
 963                                         u8 element_id;
 964                                         u8 length;
 965                                         struct ieee80211_msrment_ie msr_elem;
 966                                 } __packed measurement;
 967                                 struct{
 968                                         u8 action_code;
 969                                         u8 dialog_token;
 970                                         __le16 capab;
 971                                         __le16 timeout;
 972                                         __le16 start_seq_num;
 973                                 } __packed addba_req;
 974                                 struct{
 975                                         u8 action_code;
 976                                         u8 dialog_token;
 977                                         __le16 status;
 978                                         __le16 capab;
 979                                         __le16 timeout;
 980                                 } __packed addba_resp;
 981                                 struct{
 982                                         u8 action_code;
 983                                         __le16 params;
 984                                         __le16 reason_code;
 985                                 } __packed delba;
 986                                 struct {
 987                                         u8 action_code;
 988                                         u8 variable[0];
 989                                 } __packed self_prot;
 990                                 struct{
 991                                         u8 action_code;
 992                                         u8 variable[0];
 993                                 } __packed mesh_action;
 994                                 struct {
 995                                         u8 action;
 996                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 997                                 } __packed sa_query;
 998                                 struct {
 999                                         u8 action;
1000                                         u8 smps_control;
1001                                 } __packed ht_smps;
1002                                 struct {
1003                                         u8 action_code;
1004                                         u8 chanwidth;
1005                                 } __packed ht_notify_cw;
1006                                 struct {
1007                                         u8 action_code;
1008                                         u8 dialog_token;
1009                                         __le16 capability;
1010                                         u8 variable[0];
1011                                 } __packed tdls_discover_resp;
1012                                 struct {
1013                                         u8 action_code;
1014                                         u8 operating_mode;
1015                                 } __packed vht_opmode_notif;
1016                                 struct {
1017                                         u8 action_code;
1018                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1019                                         u8 position[WLAN_USER_POSITION_LEN];
1020                                 } __packed vht_group_notif;
1021                                 struct {
1022                                         u8 action_code;
1023                                         u8 dialog_token;
1024                                         u8 tpc_elem_id;
1025                                         u8 tpc_elem_length;
1026                                         struct ieee80211_tpc_report_ie tpc;
1027                                 } __packed tpc_report;
1028                                 struct {
1029                                         u8 action_code;
1030                                         u8 dialog_token;
1031                                         u8 follow_up;
1032                                         u8 tod[6];
1033                                         u8 toa[6];
1034                                         __le16 tod_error;
1035                                         __le16 toa_error;
1036                                         u8 variable[0];
1037                                 } __packed ftm;
1038                         } u;
1039                 } __packed action;
1040         } u;
1041 } __packed __aligned(2);
1042
1043 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1044 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1045
1046 /* mgmt header + 1 byte category code */
1047 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1048
1049
1050 /* Management MIC information element (IEEE 802.11w) */
1051 struct ieee80211_mmie {
1052         u8 element_id;
1053         u8 length;
1054         __le16 key_id;
1055         u8 sequence_number[6];
1056         u8 mic[8];
1057 } __packed;
1058
1059 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1060 struct ieee80211_mmie_16 {
1061         u8 element_id;
1062         u8 length;
1063         __le16 key_id;
1064         u8 sequence_number[6];
1065         u8 mic[16];
1066 } __packed;
1067
1068 struct ieee80211_vendor_ie {
1069         u8 element_id;
1070         u8 len;
1071         u8 oui[3];
1072         u8 oui_type;
1073 } __packed;
1074
1075 struct ieee80211_wmm_ac_param {
1076         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1077         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1078         __le16 txop_limit;
1079 } __packed;
1080
1081 struct ieee80211_wmm_param_ie {
1082         u8 element_id; /* Element ID: 221 (0xdd); */
1083         u8 len; /* Length: 24 */
1084         /* required fields for WMM version 1 */
1085         u8 oui[3]; /* 00:50:f2 */
1086         u8 oui_type; /* 2 */
1087         u8 oui_subtype; /* 1 */
1088         u8 version; /* 1 for WMM version 1.0 */
1089         u8 qos_info; /* AP/STA specific QoS info */
1090         u8 reserved; /* 0 */
1091         /* AC_BE, AC_BK, AC_VI, AC_VO */
1092         struct ieee80211_wmm_ac_param ac[4];
1093 } __packed;
1094
1095 /* Control frames */
1096 struct ieee80211_rts {
1097         __le16 frame_control;
1098         __le16 duration;
1099         u8 ra[6];
1100         u8 ta[6];
1101 } __packed __aligned(2);
1102
1103 struct ieee80211_cts {
1104         __le16 frame_control;
1105         __le16 duration;
1106         u8 ra[6];
1107 } __packed __aligned(2);
1108
1109 struct ieee80211_pspoll {
1110         __le16 frame_control;
1111         __le16 aid;
1112         u8 bssid[6];
1113         u8 ta[6];
1114 } __packed __aligned(2);
1115
1116 /* TDLS */
1117
1118 /* Channel switch timing */
1119 struct ieee80211_ch_switch_timing {
1120         __le16 switch_time;
1121         __le16 switch_timeout;
1122 } __packed;
1123
1124 /* Link-id information element */
1125 struct ieee80211_tdls_lnkie {
1126         u8 ie_type; /* Link Identifier IE */
1127         u8 ie_len;
1128         u8 bssid[6];
1129         u8 init_sta[6];
1130         u8 resp_sta[6];
1131 } __packed;
1132
1133 struct ieee80211_tdls_data {
1134         u8 da[6];
1135         u8 sa[6];
1136         __be16 ether_type;
1137         u8 payload_type;
1138         u8 category;
1139         u8 action_code;
1140         union {
1141                 struct {
1142                         u8 dialog_token;
1143                         __le16 capability;
1144                         u8 variable[0];
1145                 } __packed setup_req;
1146                 struct {
1147                         __le16 status_code;
1148                         u8 dialog_token;
1149                         __le16 capability;
1150                         u8 variable[0];
1151                 } __packed setup_resp;
1152                 struct {
1153                         __le16 status_code;
1154                         u8 dialog_token;
1155                         u8 variable[0];
1156                 } __packed setup_cfm;
1157                 struct {
1158                         __le16 reason_code;
1159                         u8 variable[0];
1160                 } __packed teardown;
1161                 struct {
1162                         u8 dialog_token;
1163                         u8 variable[0];
1164                 } __packed discover_req;
1165                 struct {
1166                         u8 target_channel;
1167                         u8 oper_class;
1168                         u8 variable[0];
1169                 } __packed chan_switch_req;
1170                 struct {
1171                         __le16 status_code;
1172                         u8 variable[0];
1173                 } __packed chan_switch_resp;
1174         } u;
1175 } __packed;
1176
1177 /*
1178  * Peer-to-Peer IE attribute related definitions.
1179  */
1180 /**
1181  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1182  */
1183 enum ieee80211_p2p_attr_id {
1184         IEEE80211_P2P_ATTR_STATUS = 0,
1185         IEEE80211_P2P_ATTR_MINOR_REASON,
1186         IEEE80211_P2P_ATTR_CAPABILITY,
1187         IEEE80211_P2P_ATTR_DEVICE_ID,
1188         IEEE80211_P2P_ATTR_GO_INTENT,
1189         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1190         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1191         IEEE80211_P2P_ATTR_GROUP_BSSID,
1192         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1193         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1194         IEEE80211_P2P_ATTR_MANAGABILITY,
1195         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1196         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1197         IEEE80211_P2P_ATTR_DEVICE_INFO,
1198         IEEE80211_P2P_ATTR_GROUP_INFO,
1199         IEEE80211_P2P_ATTR_GROUP_ID,
1200         IEEE80211_P2P_ATTR_INTERFACE,
1201         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1202         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1203         /* 19 - 220: Reserved */
1204         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1205
1206         IEEE80211_P2P_ATTR_MAX
1207 };
1208
1209 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1210 /* Typical max value used here */
1211 #define IEEE80211_P2P_NOA_DESC_MAX      4
1212
1213 struct ieee80211_p2p_noa_desc {
1214         u8 count;
1215         __le32 duration;
1216         __le32 interval;
1217         __le32 start_time;
1218 } __packed;
1219
1220 struct ieee80211_p2p_noa_attr {
1221         u8 index;
1222         u8 oppps_ctwindow;
1223         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1224 } __packed;
1225
1226 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1227 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1228
1229 /**
1230  * struct ieee80211_bar - HT Block Ack Request
1231  *
1232  * This structure refers to "HT BlockAckReq" as
1233  * described in 802.11n draft section 7.2.1.7.1
1234  */
1235 struct ieee80211_bar {
1236         __le16 frame_control;
1237         __le16 duration;
1238         __u8 ra[6];
1239         __u8 ta[6];
1240         __le16 control;
1241         __le16 start_seq_num;
1242 } __packed __aligned(4);
1243
1244 /* 802.11 BA(R) control masks */
1245 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1246 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1247 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1248 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1249 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1250
1251 /**
1252  * struct ieee80211_ba - HT Block Ack
1253  *
1254  * This structure refers to "HT BlockAck" as
1255  * described in 802.11n draft section 7.2.1.8.1
1256  */
1257 struct ieee80211_ba {
1258         __le16 frame_control;
1259         __le16 duration;
1260         u8 ra[6];
1261         u8 ta[6];
1262         __le16 control;
1263
1264         __le16 start_seq_num;
1265         u8 bitmap[8];
1266 } __packed;
1267
1268 #define IEEE80211_HT_MCS_MASK_LEN               10
1269
1270 /**
1271  * struct ieee80211_mcs_info - MCS information
1272  * @rx_mask: RX mask
1273  * @rx_highest: highest supported RX rate. If set represents
1274  *      the highest supported RX data rate in units of 1 Mbps.
1275  *      If this field is 0 this value should not be used to
1276  *      consider the highest RX data rate supported.
1277  * @tx_params: TX parameters
1278  */
1279 struct ieee80211_mcs_info {
1280         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1281         __le16 rx_highest;
1282         u8 tx_params;
1283         u8 reserved[3];
1284 } __packed;
1285
1286 /* 802.11n HT capability MSC set */
1287 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1288 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1289 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1290 /* value 0 == 1 stream etc */
1291 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1292 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1293 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1294 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1295
1296 /*
1297  * 802.11n D5.0 20.3.5 / 20.6 says:
1298  * - indices 0 to 7 and 32 are single spatial stream
1299  * - 8 to 31 are multiple spatial streams using equal modulation
1300  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1301  * - remainder are multiple spatial streams using unequal modulation
1302  */
1303 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1304 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1305         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1306
1307 /**
1308  * struct ieee80211_ht_cap - HT capabilities
1309  *
1310  * This structure is the "HT capabilities element" as
1311  * described in 802.11n D5.0 7.3.2.57
1312  */
1313 struct ieee80211_ht_cap {
1314         __le16 cap_info;
1315         u8 ampdu_params_info;
1316
1317         /* 16 bytes MCS information */
1318         struct ieee80211_mcs_info mcs;
1319
1320         __le16 extended_ht_cap_info;
1321         __le32 tx_BF_cap_info;
1322         u8 antenna_selection_info;
1323 } __packed;
1324
1325 /* 802.11n HT capabilities masks (for cap_info) */
1326 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1327 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1328 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1329 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1330 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1331 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1332 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1333 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1334 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1335 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1336 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1337 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1338 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1339 #define IEEE80211_HT_CAP_RESERVED               0x2000
1340 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1341 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1342
1343 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1344 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1345 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1346 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1347 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1348 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1349 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1350 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1351
1352 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1353 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1354 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1355 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1356
1357 /*
1358  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1359  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1360  */
1361 enum ieee80211_max_ampdu_length_exp {
1362         IEEE80211_HT_MAX_AMPDU_8K = 0,
1363         IEEE80211_HT_MAX_AMPDU_16K = 1,
1364         IEEE80211_HT_MAX_AMPDU_32K = 2,
1365         IEEE80211_HT_MAX_AMPDU_64K = 3
1366 };
1367
1368 /*
1369  * Maximum length of AMPDU that the STA can receive in VHT.
1370  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1371  */
1372 enum ieee80211_vht_max_ampdu_length_exp {
1373         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1374         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1375         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1376         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1377         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1378         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1379         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1380         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1381 };
1382
1383 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1384
1385 /* Minimum MPDU start spacing */
1386 enum ieee80211_min_mpdu_spacing {
1387         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1388         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1389         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1390         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1391         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1392         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1393         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1394         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1395 };
1396
1397 /**
1398  * struct ieee80211_ht_operation - HT operation IE
1399  *
1400  * This structure is the "HT operation element" as
1401  * described in 802.11n-2009 7.3.2.57
1402  */
1403 struct ieee80211_ht_operation {
1404         u8 primary_chan;
1405         u8 ht_param;
1406         __le16 operation_mode;
1407         __le16 stbc_param;
1408         u8 basic_set[16];
1409 } __packed;
1410
1411 /* for ht_param */
1412 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1413 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1414 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1415 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1416 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1417 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1418
1419 /* for operation_mode */
1420 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1421 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1422 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1423 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1424 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1425 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1426 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1427
1428 /* for stbc_param */
1429 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1430 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1431 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1432 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1433 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1434 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1435
1436
1437 /* block-ack parameters */
1438 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1439 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1440 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1441 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1442 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1443 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1444
1445 /*
1446  * A-PMDU buffer sizes
1447  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1448  */
1449 #define IEEE80211_MIN_AMPDU_BUF 0x8
1450 #define IEEE80211_MAX_AMPDU_BUF 0x40
1451
1452
1453 /* Spatial Multiplexing Power Save Modes (for capability) */
1454 #define WLAN_HT_CAP_SM_PS_STATIC        0
1455 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1456 #define WLAN_HT_CAP_SM_PS_INVALID       2
1457 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1458
1459 /* for SM power control field lower two bits */
1460 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1461 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1462 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1463
1464 /**
1465  * struct ieee80211_vht_mcs_info - VHT MCS information
1466  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1467  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1468  *      STA can receive. Rate expressed in units of 1 Mbps.
1469  *      If this field is 0 this value should not be used to
1470  *      consider the highest RX data rate supported.
1471  *      The top 3 bits of this field are reserved.
1472  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1473  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1474  *      STA can transmit. Rate expressed in units of 1 Mbps.
1475  *      If this field is 0 this value should not be used to
1476  *      consider the highest TX data rate supported.
1477  *      The top 3 bits of this field are reserved.
1478  */
1479 struct ieee80211_vht_mcs_info {
1480         __le16 rx_mcs_map;
1481         __le16 rx_highest;
1482         __le16 tx_mcs_map;
1483         __le16 tx_highest;
1484 } __packed;
1485
1486 /**
1487  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1488  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1489  *      number of streams
1490  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1491  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1492  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1493  *
1494  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1495  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1496  * both split into 8 subfields by number of streams. These values indicate
1497  * which MCSes are supported for the number of streams the value appears
1498  * for.
1499  */
1500 enum ieee80211_vht_mcs_support {
1501         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1502         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1503         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1504         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1505 };
1506
1507 /**
1508  * struct ieee80211_vht_cap - VHT capabilities
1509  *
1510  * This structure is the "VHT capabilities element" as
1511  * described in 802.11ac D3.0 8.4.2.160
1512  * @vht_cap_info: VHT capability info
1513  * @supp_mcs: VHT MCS supported rates
1514  */
1515 struct ieee80211_vht_cap {
1516         __le32 vht_cap_info;
1517         struct ieee80211_vht_mcs_info supp_mcs;
1518 } __packed;
1519
1520 /**
1521  * enum ieee80211_vht_chanwidth - VHT channel width
1522  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1523  *      determine the channel width (20 or 40 MHz)
1524  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1525  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1526  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1527  */
1528 enum ieee80211_vht_chanwidth {
1529         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1530         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1531         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1532         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1533 };
1534
1535 /**
1536  * struct ieee80211_vht_operation - VHT operation IE
1537  *
1538  * This structure is the "VHT operation element" as
1539  * described in 802.11ac D3.0 8.4.2.161
1540  * @chan_width: Operating channel width
1541  * @center_freq_seg1_idx: center freq segment 1 index
1542  * @center_freq_seg2_idx: center freq segment 2 index
1543  * @basic_mcs_set: VHT Basic MCS rate set
1544  */
1545 struct ieee80211_vht_operation {
1546         u8 chan_width;
1547         u8 center_freq_seg1_idx;
1548         u8 center_freq_seg2_idx;
1549         __le16 basic_mcs_set;
1550 } __packed;
1551
1552
1553 /* 802.11ac VHT Capabilities */
1554 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1555 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1556 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1557 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
1558 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1559 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1560 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1561 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1562 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1563 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1564 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1565 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1566 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1567 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1568 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1569 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1570 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1571 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1572 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1573                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1574 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1575 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1576                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1577 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1578 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1579 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1580 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1581 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1582 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1583                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1584 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1585 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1586 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1587 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1588
1589 /* Authentication algorithms */
1590 #define WLAN_AUTH_OPEN 0
1591 #define WLAN_AUTH_SHARED_KEY 1
1592 #define WLAN_AUTH_FT 2
1593 #define WLAN_AUTH_SAE 3
1594 #define WLAN_AUTH_LEAP 128
1595
1596 #define WLAN_AUTH_CHALLENGE_LEN 128
1597
1598 #define WLAN_CAPABILITY_ESS             (1<<0)
1599 #define WLAN_CAPABILITY_IBSS            (1<<1)
1600
1601 /*
1602  * A mesh STA sets the ESS and IBSS capability bits to zero.
1603  * however, this holds true for p2p probe responses (in the p2p_find
1604  * phase) as well.
1605  */
1606 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1607         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1608
1609 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1610 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1611 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1612 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1613 #define WLAN_CAPABILITY_PBCC            (1<<6)
1614 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1615
1616 /* 802.11h */
1617 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1618 #define WLAN_CAPABILITY_QOS             (1<<9)
1619 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1620 #define WLAN_CAPABILITY_APSD            (1<<11)
1621 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1622 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1623 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1624 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1625
1626 /* DMG (60gHz) 802.11ad */
1627 /* type - bits 0..1 */
1628 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1629 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1630 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1631 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1632
1633 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1634 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1635 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1636 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1637
1638 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1639 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1640
1641 /* measurement */
1642 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1643 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1644 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1645
1646 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1647 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1648 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1649
1650 /* 802.11g ERP information element */
1651 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1652 #define WLAN_ERP_USE_PROTECTION (1<<1)
1653 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1654
1655 /* WLAN_ERP_BARKER_PREAMBLE values */
1656 enum {
1657         WLAN_ERP_PREAMBLE_SHORT = 0,
1658         WLAN_ERP_PREAMBLE_LONG = 1,
1659 };
1660
1661 /* Band ID, 802.11ad #8.4.1.45 */
1662 enum {
1663         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1664         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1665         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1666         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1667         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1668         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1669 };
1670
1671 /* Status codes */
1672 enum ieee80211_statuscode {
1673         WLAN_STATUS_SUCCESS = 0,
1674         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1675         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1676         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1677         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1678         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1679         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1680         WLAN_STATUS_CHALLENGE_FAIL = 15,
1681         WLAN_STATUS_AUTH_TIMEOUT = 16,
1682         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1683         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1684         /* 802.11b */
1685         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1686         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1687         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1688         /* 802.11h */
1689         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1690         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1691         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1692         /* 802.11g */
1693         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1694         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1695         /* 802.11w */
1696         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1697         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1698         /* 802.11i */
1699         WLAN_STATUS_INVALID_IE = 40,
1700         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1701         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1702         WLAN_STATUS_INVALID_AKMP = 43,
1703         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1704         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1705         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1706         /* 802.11e */
1707         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1708         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1709         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1710         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1711         WLAN_STATUS_REQUEST_DECLINED = 37,
1712         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1713         WLAN_STATUS_CHANGE_TSPEC = 39,
1714         WLAN_STATUS_WAIT_TS_DELAY = 47,
1715         WLAN_STATUS_NO_DIRECT_LINK = 48,
1716         WLAN_STATUS_STA_NOT_PRESENT = 49,
1717         WLAN_STATUS_STA_NOT_QSTA = 50,
1718         /* 802.11s */
1719         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1720         WLAN_STATUS_FCG_NOT_SUPP = 78,
1721         WLAN_STATUS_STA_NO_TBTT = 78,
1722         /* 802.11ad */
1723         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1724         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1725         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1726         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1727         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1728         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1729         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1730         WLAN_STATUS_REJECT_DSE_BAND = 96,
1731         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1732         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1733 };
1734
1735
1736 /* Reason codes */
1737 enum ieee80211_reasoncode {
1738         WLAN_REASON_UNSPECIFIED = 1,
1739         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1740         WLAN_REASON_DEAUTH_LEAVING = 3,
1741         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1742         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1743         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1744         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1745         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1746         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1747         /* 802.11h */
1748         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1749         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1750         /* 802.11i */
1751         WLAN_REASON_INVALID_IE = 13,
1752         WLAN_REASON_MIC_FAILURE = 14,
1753         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1754         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1755         WLAN_REASON_IE_DIFFERENT = 17,
1756         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1757         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1758         WLAN_REASON_INVALID_AKMP = 20,
1759         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1760         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1761         WLAN_REASON_IEEE8021X_FAILED = 23,
1762         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1763         /* TDLS (802.11z) */
1764         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1765         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1766         /* 802.11e */
1767         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1768         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1769         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1770         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1771         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1772         WLAN_REASON_QSTA_NOT_USE = 37,
1773         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1774         WLAN_REASON_QSTA_TIMEOUT = 39,
1775         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1776         /* 802.11s */
1777         WLAN_REASON_MESH_PEER_CANCELED = 52,
1778         WLAN_REASON_MESH_MAX_PEERS = 53,
1779         WLAN_REASON_MESH_CONFIG = 54,
1780         WLAN_REASON_MESH_CLOSE = 55,
1781         WLAN_REASON_MESH_MAX_RETRIES = 56,
1782         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1783         WLAN_REASON_MESH_INVALID_GTK = 58,
1784         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1785         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1786         WLAN_REASON_MESH_PATH_ERROR = 61,
1787         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1788         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1789         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1790         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1791         WLAN_REASON_MESH_CHAN = 66,
1792 };
1793
1794
1795 /* Information Element IDs */
1796 enum ieee80211_eid {
1797         WLAN_EID_SSID = 0,
1798         WLAN_EID_SUPP_RATES = 1,
1799         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1800         WLAN_EID_DS_PARAMS = 3,
1801         WLAN_EID_CF_PARAMS = 4,
1802         WLAN_EID_TIM = 5,
1803         WLAN_EID_IBSS_PARAMS = 6,
1804         WLAN_EID_COUNTRY = 7,
1805         /* 8, 9 reserved */
1806         WLAN_EID_REQUEST = 10,
1807         WLAN_EID_QBSS_LOAD = 11,
1808         WLAN_EID_EDCA_PARAM_SET = 12,
1809         WLAN_EID_TSPEC = 13,
1810         WLAN_EID_TCLAS = 14,
1811         WLAN_EID_SCHEDULE = 15,
1812         WLAN_EID_CHALLENGE = 16,
1813         /* 17-31 reserved for challenge text extension */
1814         WLAN_EID_PWR_CONSTRAINT = 32,
1815         WLAN_EID_PWR_CAPABILITY = 33,
1816         WLAN_EID_TPC_REQUEST = 34,
1817         WLAN_EID_TPC_REPORT = 35,
1818         WLAN_EID_SUPPORTED_CHANNELS = 36,
1819         WLAN_EID_CHANNEL_SWITCH = 37,
1820         WLAN_EID_MEASURE_REQUEST = 38,
1821         WLAN_EID_MEASURE_REPORT = 39,
1822         WLAN_EID_QUIET = 40,
1823         WLAN_EID_IBSS_DFS = 41,
1824         WLAN_EID_ERP_INFO = 42,
1825         WLAN_EID_TS_DELAY = 43,
1826         WLAN_EID_TCLAS_PROCESSING = 44,
1827         WLAN_EID_HT_CAPABILITY = 45,
1828         WLAN_EID_QOS_CAPA = 46,
1829         /* 47 reserved for Broadcom */
1830         WLAN_EID_RSN = 48,
1831         WLAN_EID_802_15_COEX = 49,
1832         WLAN_EID_EXT_SUPP_RATES = 50,
1833         WLAN_EID_AP_CHAN_REPORT = 51,
1834         WLAN_EID_NEIGHBOR_REPORT = 52,
1835         WLAN_EID_RCPI = 53,
1836         WLAN_EID_MOBILITY_DOMAIN = 54,
1837         WLAN_EID_FAST_BSS_TRANSITION = 55,
1838         WLAN_EID_TIMEOUT_INTERVAL = 56,
1839         WLAN_EID_RIC_DATA = 57,
1840         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1841         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1842         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1843         WLAN_EID_HT_OPERATION = 61,
1844         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1845         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1846         WLAN_EID_ANTENNA_INFO = 64,
1847         WLAN_EID_RSNI = 65,
1848         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1849         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1850         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1851         WLAN_EID_TIME_ADVERTISEMENT = 69,
1852         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1853         WLAN_EID_MULTIPLE_BSSID = 71,
1854         WLAN_EID_BSS_COEX_2040 = 72,
1855         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1856         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1857         WLAN_EID_RIC_DESCRIPTOR = 75,
1858         WLAN_EID_MMIE = 76,
1859         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1860         WLAN_EID_EVENT_REQUEST = 78,
1861         WLAN_EID_EVENT_REPORT = 79,
1862         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1863         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1864         WLAN_EID_LOCATION_PARAMS = 82,
1865         WLAN_EID_NON_TX_BSSID_CAP =  83,
1866         WLAN_EID_SSID_LIST = 84,
1867         WLAN_EID_MULTI_BSSID_IDX = 85,
1868         WLAN_EID_FMS_DESCRIPTOR = 86,
1869         WLAN_EID_FMS_REQUEST = 87,
1870         WLAN_EID_FMS_RESPONSE = 88,
1871         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1872         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1873         WLAN_EID_TSF_REQUEST = 91,
1874         WLAN_EID_TSF_RESPOSNE = 92,
1875         WLAN_EID_WNM_SLEEP_MODE = 93,
1876         WLAN_EID_TIM_BCAST_REQ = 94,
1877         WLAN_EID_TIM_BCAST_RESP = 95,
1878         WLAN_EID_COLL_IF_REPORT = 96,
1879         WLAN_EID_CHANNEL_USAGE = 97,
1880         WLAN_EID_TIME_ZONE = 98,
1881         WLAN_EID_DMS_REQUEST = 99,
1882         WLAN_EID_DMS_RESPONSE = 100,
1883         WLAN_EID_LINK_ID = 101,
1884         WLAN_EID_WAKEUP_SCHEDUL = 102,
1885         /* 103 reserved */
1886         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1887         WLAN_EID_PTI_CONTROL = 105,
1888         WLAN_EID_PU_BUFFER_STATUS = 106,
1889         WLAN_EID_INTERWORKING = 107,
1890         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1891         WLAN_EID_EXPEDITED_BW_REQ = 109,
1892         WLAN_EID_QOS_MAP_SET = 110,
1893         WLAN_EID_ROAMING_CONSORTIUM = 111,
1894         WLAN_EID_EMERGENCY_ALERT = 112,
1895         WLAN_EID_MESH_CONFIG = 113,
1896         WLAN_EID_MESH_ID = 114,
1897         WLAN_EID_LINK_METRIC_REPORT = 115,
1898         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1899         WLAN_EID_PEER_MGMT = 117,
1900         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1901         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1902         WLAN_EID_BEACON_TIMING = 120,
1903         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1904         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1905         WLAN_EID_MCCAOP_ADVERT = 123,
1906         WLAN_EID_MCCAOP_TEARDOWN = 124,
1907         WLAN_EID_GANN = 125,
1908         WLAN_EID_RANN = 126,
1909         WLAN_EID_EXT_CAPABILITY = 127,
1910         /* 128, 129 reserved for Agere */
1911         WLAN_EID_PREQ = 130,
1912         WLAN_EID_PREP = 131,
1913         WLAN_EID_PERR = 132,
1914         /* 133-136 reserved for Cisco */
1915         WLAN_EID_PXU = 137,
1916         WLAN_EID_PXUC = 138,
1917         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1918         WLAN_EID_MIC = 140,
1919         WLAN_EID_DESTINATION_URI = 141,
1920         WLAN_EID_UAPSD_COEX = 142,
1921         WLAN_EID_WAKEUP_SCHEDULE = 143,
1922         WLAN_EID_EXT_SCHEDULE = 144,
1923         WLAN_EID_STA_AVAILABILITY = 145,
1924         WLAN_EID_DMG_TSPEC = 146,
1925         WLAN_EID_DMG_AT = 147,
1926         WLAN_EID_DMG_CAP = 148,
1927         /* 149 reserved for Cisco */
1928         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1929         WLAN_EID_DMG_OPERATION = 151,
1930         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1931         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1932         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1933         /* 155-156 reserved for Cisco */
1934         WLAN_EID_AWAKE_WINDOW = 157,
1935         WLAN_EID_MULTI_BAND = 158,
1936         WLAN_EID_ADDBA_EXT = 159,
1937         WLAN_EID_NEXT_PCP_LIST = 160,
1938         WLAN_EID_PCP_HANDOVER = 161,
1939         WLAN_EID_DMG_LINK_MARGIN = 162,
1940         WLAN_EID_SWITCHING_STREAM = 163,
1941         WLAN_EID_SESSION_TRANSITION = 164,
1942         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1943         WLAN_EID_CLUSTER_REPORT = 166,
1944         WLAN_EID_RELAY_CAP = 167,
1945         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1946         WLAN_EID_BEAM_LINK_MAINT = 169,
1947         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1948         WLAN_EID_U_PID = 171,
1949         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1950         /* 173 reserved for Symbol */
1951         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1952         WLAN_EID_QUIET_PERIOD_REQ = 175,
1953         /* 176 reserved for Symbol */
1954         WLAN_EID_QUIET_PERIOD_RESP = 177,
1955         /* 178-179 reserved for Symbol */
1956         /* 180 reserved for ISO/IEC 20011 */
1957         WLAN_EID_EPAC_POLICY = 182,
1958         WLAN_EID_CLISTER_TIME_OFF = 183,
1959         WLAN_EID_INTER_AC_PRIO = 184,
1960         WLAN_EID_SCS_DESCRIPTOR = 185,
1961         WLAN_EID_QLOAD_REPORT = 186,
1962         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1963         WLAN_EID_HL_STREAM_ID = 188,
1964         WLAN_EID_GCR_GROUP_ADDR = 189,
1965         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1966         WLAN_EID_VHT_CAPABILITY = 191,
1967         WLAN_EID_VHT_OPERATION = 192,
1968         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1969         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1970         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1971         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1972         WLAN_EID_AID = 197,
1973         WLAN_EID_QUIET_CHANNEL = 198,
1974         WLAN_EID_OPMODE_NOTIF = 199,
1975
1976         WLAN_EID_VENDOR_SPECIFIC = 221,
1977         WLAN_EID_QOS_PARAMETER = 222,
1978 };
1979
1980 /* Action category code */
1981 enum ieee80211_category {
1982         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1983         WLAN_CATEGORY_QOS = 1,
1984         WLAN_CATEGORY_DLS = 2,
1985         WLAN_CATEGORY_BACK = 3,
1986         WLAN_CATEGORY_PUBLIC = 4,
1987         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1988         WLAN_CATEGORY_HT = 7,
1989         WLAN_CATEGORY_SA_QUERY = 8,
1990         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1991         WLAN_CATEGORY_WNM = 10,
1992         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
1993         WLAN_CATEGORY_TDLS = 12,
1994         WLAN_CATEGORY_MESH_ACTION = 13,
1995         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1996         WLAN_CATEGORY_SELF_PROTECTED = 15,
1997         WLAN_CATEGORY_DMG = 16,
1998         WLAN_CATEGORY_WMM = 17,
1999         WLAN_CATEGORY_FST = 18,
2000         WLAN_CATEGORY_UNPROT_DMG = 20,
2001         WLAN_CATEGORY_VHT = 21,
2002         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
2003         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
2004 };
2005
2006 /* SPECTRUM_MGMT action code */
2007 enum ieee80211_spectrum_mgmt_actioncode {
2008         WLAN_ACTION_SPCT_MSR_REQ = 0,
2009         WLAN_ACTION_SPCT_MSR_RPRT = 1,
2010         WLAN_ACTION_SPCT_TPC_REQ = 2,
2011         WLAN_ACTION_SPCT_TPC_RPRT = 3,
2012         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2013 };
2014
2015 /* HT action codes */
2016 enum ieee80211_ht_actioncode {
2017         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2018         WLAN_HT_ACTION_SMPS = 1,
2019         WLAN_HT_ACTION_PSMP = 2,
2020         WLAN_HT_ACTION_PCO_PHASE = 3,
2021         WLAN_HT_ACTION_CSI = 4,
2022         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2023         WLAN_HT_ACTION_COMPRESSED_BF = 6,
2024         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2025 };
2026
2027 /* VHT action codes */
2028 enum ieee80211_vht_actioncode {
2029         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2030         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2031         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2032 };
2033
2034 /* Self Protected Action codes */
2035 enum ieee80211_self_protected_actioncode {
2036         WLAN_SP_RESERVED = 0,
2037         WLAN_SP_MESH_PEERING_OPEN = 1,
2038         WLAN_SP_MESH_PEERING_CONFIRM = 2,
2039         WLAN_SP_MESH_PEERING_CLOSE = 3,
2040         WLAN_SP_MGK_INFORM = 4,
2041         WLAN_SP_MGK_ACK = 5,
2042 };
2043
2044 /* Mesh action codes */
2045 enum ieee80211_mesh_actioncode {
2046         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2047         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2048         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2049         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2050         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2051         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2052         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2053         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2054         WLAN_MESH_ACTION_MCCA_TEARDOWN,
2055         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2056         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2057 };
2058
2059 /* Security key length */
2060 enum ieee80211_key_len {
2061         WLAN_KEY_LEN_WEP40 = 5,
2062         WLAN_KEY_LEN_WEP104 = 13,
2063         WLAN_KEY_LEN_CCMP = 16,
2064         WLAN_KEY_LEN_CCMP_256 = 32,
2065         WLAN_KEY_LEN_TKIP = 32,
2066         WLAN_KEY_LEN_AES_CMAC = 16,
2067         WLAN_KEY_LEN_SMS4 = 32,
2068         WLAN_KEY_LEN_GCMP = 16,
2069         WLAN_KEY_LEN_GCMP_256 = 32,
2070         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2071         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2072         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2073 };
2074
2075 #define IEEE80211_WEP_IV_LEN            4
2076 #define IEEE80211_WEP_ICV_LEN           4
2077 #define IEEE80211_CCMP_HDR_LEN          8
2078 #define IEEE80211_CCMP_MIC_LEN          8
2079 #define IEEE80211_CCMP_PN_LEN           6
2080 #define IEEE80211_CCMP_256_HDR_LEN      8
2081 #define IEEE80211_CCMP_256_MIC_LEN      16
2082 #define IEEE80211_CCMP_256_PN_LEN       6
2083 #define IEEE80211_TKIP_IV_LEN           8
2084 #define IEEE80211_TKIP_ICV_LEN          4
2085 #define IEEE80211_CMAC_PN_LEN           6
2086 #define IEEE80211_GMAC_PN_LEN           6
2087 #define IEEE80211_GCMP_HDR_LEN          8
2088 #define IEEE80211_GCMP_MIC_LEN          16
2089 #define IEEE80211_GCMP_PN_LEN           6
2090
2091 /* Public action codes */
2092 enum ieee80211_pub_actioncode {
2093         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2094         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2095 };
2096
2097 /* TDLS action codes */
2098 enum ieee80211_tdls_actioncode {
2099         WLAN_TDLS_SETUP_REQUEST = 0,
2100         WLAN_TDLS_SETUP_RESPONSE = 1,
2101         WLAN_TDLS_SETUP_CONFIRM = 2,
2102         WLAN_TDLS_TEARDOWN = 3,
2103         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2104         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2105         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2106         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2107         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2108         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2109         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2110 };
2111
2112 /* Extended Channel Switching capability to be set in the 1st byte of
2113  * the @WLAN_EID_EXT_CAPABILITY information element
2114  */
2115 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2116
2117 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2118 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2119 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2120 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2121
2122 /* Interworking capabilities are set in 7th bit of 4th byte of the
2123  * @WLAN_EID_EXT_CAPABILITY information element
2124  */
2125 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2126
2127 /*
2128  * TDLS capabililites to be enabled in the 5th byte of the
2129  * @WLAN_EID_EXT_CAPABILITY information element
2130  */
2131 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2132 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2133 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2134
2135 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
2136 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2137
2138 /* Defines the maximal number of MSDUs in an A-MSDU. */
2139 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
2140 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
2141
2142 /*
2143  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2144  * information element
2145  */
2146 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
2147
2148 /* TDLS specific payload type in the LLC/SNAP header */
2149 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2150
2151 /* BSS Coex IE information field bits */
2152 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2153
2154 /**
2155  * enum - mesh synchronization method identifier
2156  *
2157  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2158  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2159  *      that will be specified in a vendor specific information element
2160  */
2161 enum {
2162         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2163         IEEE80211_SYNC_METHOD_VENDOR = 255,
2164 };
2165
2166 /**
2167  * enum - mesh path selection protocol identifier
2168  *
2169  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2170  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2171  *      be specified in a vendor specific information element
2172  */
2173 enum {
2174         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2175         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2176 };
2177
2178 /**
2179  * enum - mesh path selection metric identifier
2180  *
2181  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2182  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2183  *      specified in a vendor specific information element
2184  */
2185 enum {
2186         IEEE80211_PATH_METRIC_AIRTIME = 1,
2187         IEEE80211_PATH_METRIC_VENDOR = 255,
2188 };
2189
2190 /**
2191  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2192  *
2193  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2194  *
2195  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2196  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2197  *      this value
2198  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2199  *      the proactive PREQ with proactive PREP subfield set to 0
2200  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2201  *      supports the proactive PREQ with proactive PREP subfield set to 1
2202  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2203  *      the proactive RANN
2204  */
2205 enum ieee80211_root_mode_identifier {
2206         IEEE80211_ROOTMODE_NO_ROOT = 0,
2207         IEEE80211_ROOTMODE_ROOT = 1,
2208         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2209         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2210         IEEE80211_PROACTIVE_RANN = 4,
2211 };
2212
2213 /*
2214  * IEEE 802.11-2007 7.3.2.9 Country information element
2215  *
2216  * Minimum length is 8 octets, ie len must be evenly
2217  * divisible by 2
2218  */
2219
2220 /* Although the spec says 8 I'm seeing 6 in practice */
2221 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2222
2223 /* The Country String field of the element shall be 3 octets in length */
2224 #define IEEE80211_COUNTRY_STRING_LEN    3
2225
2226 /*
2227  * For regulatory extension stuff see IEEE 802.11-2007
2228  * Annex I (page 1141) and Annex J (page 1147). Also
2229  * review 7.3.2.9.
2230  *
2231  * When dot11RegulatoryClassesRequired is true and the
2232  * first_channel/reg_extension_id is >= 201 then the IE
2233  * compromises of the 'ext' struct represented below:
2234  *
2235  *  - Regulatory extension ID - when generating IE this just needs
2236  *    to be monotonically increasing for each triplet passed in
2237  *    the IE
2238  *  - Regulatory class - index into set of rules
2239  *  - Coverage class - index into air propagation time (Table 7-27),
2240  *    in microseconds, you can compute the air propagation time from
2241  *    the index by multiplying by 3, so index 10 yields a propagation
2242  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2243  *    yet. A value of 0 inicates air propagation of <= 1 us.
2244  *
2245  *  See also Table I.2 for Emission limit sets and table
2246  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2247  *  a reg_class to an emission limit set and behavior limit set.
2248  */
2249 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2250
2251 /*
2252  *  Channels numbers in the IE must be monotonically increasing
2253  *  if dot11RegulatoryClassesRequired is not true.
2254  *
2255  *  If dot11RegulatoryClassesRequired is true consecutive
2256  *  subband triplets following a regulatory triplet shall
2257  *  have monotonically increasing first_channel number fields.
2258  *
2259  *  Channel numbers shall not overlap.
2260  *
2261  *  Note that max_power is signed.
2262  */
2263 struct ieee80211_country_ie_triplet {
2264         union {
2265                 struct {
2266                         u8 first_channel;
2267                         u8 num_channels;
2268                         s8 max_power;
2269                 } __packed chans;
2270                 struct {
2271                         u8 reg_extension_id;
2272                         u8 reg_class;
2273                         u8 coverage_class;
2274                 } __packed ext;
2275         };
2276 } __packed;
2277
2278 enum ieee80211_timeout_interval_type {
2279         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2280         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2281         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2282 };
2283
2284 /**
2285  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2286  * @type: type, see &enum ieee80211_timeout_interval_type
2287  * @value: timeout interval value
2288  */
2289 struct ieee80211_timeout_interval_ie {
2290         u8 type;
2291         __le32 value;
2292 } __packed;
2293
2294 /* BACK action code */
2295 enum ieee80211_back_actioncode {
2296         WLAN_ACTION_ADDBA_REQ = 0,
2297         WLAN_ACTION_ADDBA_RESP = 1,
2298         WLAN_ACTION_DELBA = 2,
2299 };
2300
2301 /* BACK (block-ack) parties */
2302 enum ieee80211_back_parties {
2303         WLAN_BACK_RECIPIENT = 0,
2304         WLAN_BACK_INITIATOR = 1,
2305 };
2306
2307 /* SA Query action */
2308 enum ieee80211_sa_query_action {
2309         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2310         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2311 };
2312
2313
2314 /* cipher suite selectors */
2315 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2316 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2317 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2318 /* reserved:                            0x000FAC03 */
2319 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2320 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2321 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2322 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2323 #define WLAN_CIPHER_SUITE_GCMP_256      0x000FAC09
2324 #define WLAN_CIPHER_SUITE_CCMP_256      0x000FAC0A
2325 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  0x000FAC0B
2326 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  0x000FAC0C
2327 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  0x000FAC0D
2328
2329 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2330
2331 /* AKM suite selectors */
2332 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2333 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2334 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
2335 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2336
2337 #define WLAN_MAX_KEY_LEN                32
2338
2339 #define WLAN_PMKID_LEN                  16
2340
2341 #define WLAN_OUI_WFA                    0x506f9a
2342 #define WLAN_OUI_TYPE_WFA_P2P           9
2343 #define WLAN_OUI_MICROSOFT              0x0050f2
2344 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2345 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2346 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2347
2348 /*
2349  * WMM/802.11e Tspec Element
2350  */
2351 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2352 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2353
2354 enum ieee80211_tspec_status_code {
2355         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2356         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2357 };
2358
2359 struct ieee80211_tspec_ie {
2360         u8 element_id;
2361         u8 len;
2362         u8 oui[3];
2363         u8 oui_type;
2364         u8 oui_subtype;
2365         u8 version;
2366         __le16 tsinfo;
2367         u8 tsinfo_resvd;
2368         __le16 nominal_msdu;
2369         __le16 max_msdu;
2370         __le32 min_service_int;
2371         __le32 max_service_int;
2372         __le32 inactivity_int;
2373         __le32 suspension_int;
2374         __le32 service_start_time;
2375         __le32 min_data_rate;
2376         __le32 mean_data_rate;
2377         __le32 peak_data_rate;
2378         __le32 max_burst_size;
2379         __le32 delay_bound;
2380         __le32 min_phy_rate;
2381         __le16 sba;
2382         __le16 medium_time;
2383 } __packed;
2384
2385 /**
2386  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2387  * @hdr: the frame
2388  *
2389  * The qos ctrl bytes come after the frame_control, duration, seq_num
2390  * and 3 or 4 addresses of length ETH_ALEN.
2391  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2392  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2393  */
2394 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2395 {
2396         if (ieee80211_has_a4(hdr->frame_control))
2397                 return (u8 *)hdr + 30;
2398         else
2399                 return (u8 *)hdr + 24;
2400 }
2401
2402 /**
2403  * ieee80211_get_SA - get pointer to SA
2404  * @hdr: the frame
2405  *
2406  * Given an 802.11 frame, this function returns the offset
2407  * to the source address (SA). It does not verify that the
2408  * header is long enough to contain the address, and the
2409  * header must be long enough to contain the frame control
2410  * field.
2411  */
2412 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2413 {
2414         if (ieee80211_has_a4(hdr->frame_control))
2415                 return hdr->addr4;
2416         if (ieee80211_has_fromds(hdr->frame_control))
2417                 return hdr->addr3;
2418         return hdr->addr2;
2419 }
2420
2421 /**
2422  * ieee80211_get_DA - get pointer to DA
2423  * @hdr: the frame
2424  *
2425  * Given an 802.11 frame, this function returns the offset
2426  * to the destination address (DA). It does not verify that
2427  * the header is long enough to contain the address, and the
2428  * header must be long enough to contain the frame control
2429  * field.
2430  */
2431 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2432 {
2433         if (ieee80211_has_tods(hdr->frame_control))
2434                 return hdr->addr3;
2435         else
2436                 return hdr->addr1;
2437 }
2438
2439 /**
2440  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2441  * @hdr: the frame (buffer must include at least the first octet of payload)
2442  */
2443 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2444 {
2445         if (ieee80211_is_disassoc(hdr->frame_control) ||
2446             ieee80211_is_deauth(hdr->frame_control))
2447                 return true;
2448
2449         if (ieee80211_is_action(hdr->frame_control)) {
2450                 u8 *category;
2451
2452                 /*
2453                  * Action frames, excluding Public Action frames, are Robust
2454                  * Management Frames. However, if we are looking at a Protected
2455                  * frame, skip the check since the data may be encrypted and
2456                  * the frame has already been found to be a Robust Management
2457                  * Frame (by the other end).
2458                  */
2459                 if (ieee80211_has_protected(hdr->frame_control))
2460                         return true;
2461                 category = ((u8 *) hdr) + 24;
2462                 return *category != WLAN_CATEGORY_PUBLIC &&
2463                         *category != WLAN_CATEGORY_HT &&
2464                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
2465                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2466                         *category != WLAN_CATEGORY_UNPROT_DMG &&
2467                         *category != WLAN_CATEGORY_VHT &&
2468                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2469         }
2470
2471         return false;
2472 }
2473
2474 /**
2475  * ieee80211_is_public_action - check if frame is a public action frame
2476  * @hdr: the frame
2477  * @len: length of the frame
2478  */
2479 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2480                                               size_t len)
2481 {
2482         struct ieee80211_mgmt *mgmt = (void *)hdr;
2483
2484         if (len < IEEE80211_MIN_ACTION_SIZE)
2485                 return false;
2486         if (!ieee80211_is_action(hdr->frame_control))
2487                 return false;
2488         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2489 }
2490
2491 /**
2492  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2493  * @tu: the TUs
2494  */
2495 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2496 {
2497         return 1024 * tu;
2498 }
2499
2500 /**
2501  * ieee80211_check_tim - check if AID bit is set in TIM
2502  * @tim: the TIM IE
2503  * @tim_len: length of the TIM IE
2504  * @aid: the AID to look for
2505  */
2506 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2507                                        u8 tim_len, u16 aid)
2508 {
2509         u8 mask;
2510         u8 indexn0, indexn1, indexn2;
2511
2512         if (unlikely(!tim || tim_len < sizeof(*tim)))
2513                 return false;
2514
2515         aid &= 0x3fff;
2516         indexn0 = aid / 8;
2517         mask  = 1 << (aid & 7);
2518
2519         indexn1 = tim->bitmap_ctrl & 0xfe;
2520         indexn2 = tim_len + indexn1 - 4;
2521
2522         if (indexn0 < indexn1 || indexn0 > indexn2)
2523                 return false;
2524
2525         indexn0 -= indexn1;
2526
2527         return !!(tim->virtual_map[indexn0] & mask);
2528 }
2529
2530 /* convert time units */
2531 #define TU_TO_JIFFIES(x)       (usecs_to_jiffies((x) * 1024))
2532 #define TU_TO_EXP_TIME(x)      (jiffies + TU_TO_JIFFIES(x))
2533
2534 #endif /* __LINUX_IEEE80211_H */