include/linux/ieee80211.h

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