include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <[email protected]>
   6  * Copyright (c) 2002-2003, Jouni Malinen <[email protected]>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <[email protected]>
   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 #include <linux/types.h>
  20 #include <linux/if_ether.h>
  21 #include <asm/byteorder.h>
  22 #include <asm/unaligned.h>
  23
  24 /*
  25  * DS bit usage
  26  *
  27  * TA = transmitter address
  28  * RA = receiver address
  29  * DA = destination address
  30  * SA = source address
  31  *
  32  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  33  * -----------------------------------------------------------------
  34  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  35  *  0       1       DA      BSSID   SA      -       AP -> STA
  36  *  1       0       BSSID   SA      DA      -       AP <- STA
  37  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  38  */
  39
  40 #define FCS_LEN 4
  41
  42 #define IEEE80211_FCTL_VERS             0x0003
  43 #define IEEE80211_FCTL_FTYPE            0x000c
  44 #define IEEE80211_FCTL_STYPE            0x00f0
  45 #define IEEE80211_FCTL_TODS             0x0100
  46 #define IEEE80211_FCTL_FROMDS           0x0200
  47 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  48 #define IEEE80211_FCTL_RETRY            0x0800
  49 #define IEEE80211_FCTL_PM               0x1000
  50 #define IEEE80211_FCTL_MOREDATA         0x2000
  51 #define IEEE80211_FCTL_PROTECTED        0x4000
  52 #define IEEE80211_FCTL_ORDER            0x8000
  53 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  54
  55 #define IEEE80211_SCTL_FRAG             0x000F
  56 #define IEEE80211_SCTL_SEQ              0xFFF0
  57
  58 #define IEEE80211_FTYPE_MGMT            0x0000
  59 #define IEEE80211_FTYPE_CTL             0x0004
  60 #define IEEE80211_FTYPE_DATA            0x0008
  61 #define IEEE80211_FTYPE_EXT             0x000c
  62
  63 /* management */
  64 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  65 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  66 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  67 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  68 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  69 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  70 #define IEEE80211_STYPE_BEACON          0x0080
  71 #define IEEE80211_STYPE_ATIM            0x0090
  72 #define IEEE80211_STYPE_DISASSOC        0x00A0
  73 #define IEEE80211_STYPE_AUTH            0x00B0
  74 #define IEEE80211_STYPE_DEAUTH          0x00C0
  75 #define IEEE80211_STYPE_ACTION          0x00D0
  76
  77 /* control */
  78 #define IEEE80211_STYPE_CTL_EXT         0x0060
  79 #define IEEE80211_STYPE_BACK_REQ        0x0080
  80 #define IEEE80211_STYPE_BACK            0x0090
  81 #define IEEE80211_STYPE_PSPOLL          0x00A0
  82 #define IEEE80211_STYPE_RTS             0x00B0
  83 #define IEEE80211_STYPE_CTS             0x00C0
  84 #define IEEE80211_STYPE_ACK             0x00D0
  85 #define IEEE80211_STYPE_CFEND           0x00E0
  86 #define IEEE80211_STYPE_CFENDACK        0x00F0
  87
  88 /* data */
  89 #define IEEE80211_STYPE_DATA                    0x0000
  90 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  91 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  92 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  93 #define IEEE80211_STYPE_NULLFUNC                0x0040
  94 #define IEEE80211_STYPE_CFACK                   0x0050
  95 #define IEEE80211_STYPE_CFPOLL                  0x0060
  96 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  97 #define IEEE80211_STYPE_QOS_DATA                0x0080
  98 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  99 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
 100 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
 101 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 102 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 103 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 104 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 105
 106 /* extension, added by 802.11ad */
 107 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 108
 109 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 110 #define IEEE80211_CTL_EXT_POLL          0x2000
 111 #define IEEE80211_CTL_EXT_SPR           0x3000
 112 #define IEEE80211_CTL_EXT_GRANT 0x4000
 113 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 114 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 115 #define IEEE80211_CTL_EXT_SSW           0x8000
 116 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 117 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 118
 119
 120 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 121 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 122 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 123
 124 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 125 {
 126         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 127 }
 128
 129 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 130 {
 131         return (sn1 + sn2) & IEEE80211_SN_MASK;
 132 }
 133
 134 static inline u16 ieee80211_sn_inc(u16 sn)
 135 {
 136         return ieee80211_sn_add(sn, 1);
 137 }
 138
 139 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 140 {
 141         return (sn1 - sn2) & IEEE80211_SN_MASK;
 142 }
 143
 144 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 145 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 146
 147 /* miscellaneous IEEE 802.11 constants */
 148 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 149 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 150 #define IEEE80211_MAX_AID               2007
 151 #define IEEE80211_MAX_TIM_LEN           251
 152 #define IEEE80211_MAX_MESH_PEERINGS     63
 153 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 154    6.2.1.1.2.
 155
 156    802.11e clarifies the figure in section 7.1.2. The frame body is
 157    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 158 #define IEEE80211_MAX_DATA_LEN          2304
 159 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 160  * to 7920 bytes, see 8.2.3 General frame format
 161  */
 162 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 163 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 164 #define IEEE80211_MAX_FRAME_LEN         2352
 165
 166 /* Maximal size of an A-MSDU */
 167 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 168 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 169
 170 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 171 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 172 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 173
 174 #define IEEE80211_MAX_SSID_LEN          32
 175
 176 #define IEEE80211_MAX_MESH_ID_LEN       32
 177
 178 #define IEEE80211_FIRST_TSPEC_TSID      8
 179 #define IEEE80211_NUM_TIDS              16
 180
 181 /* number of user priorities 802.11 uses */
 182 #define IEEE80211_NUM_UPS               8
 183
 184 #define IEEE80211_QOS_CTL_LEN           2
 185 /* 1d tag mask */
 186 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 187 /* TID mask */
 188 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 189 /* EOSP */
 190 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 191 /* ACK policy */
 192 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 193 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 194 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 195 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 196 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 197 /* A-MSDU 802.11n */
 198 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 199 /* Mesh Control 802.11s */
 200 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 201
 202 /* Mesh Power Save Level */
 203 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 204 /* Mesh Receiver Service Period Initiated */
 205 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 206
 207 /* U-APSD queue for WMM IEs sent by AP */
 208 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 209 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 210
 211 /* U-APSD queues for WMM IEs sent by STA */
 212 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 213 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 214 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 215 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 216 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 217
 218 /* U-APSD max SP length for WMM IEs sent by STA */
 219 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 220 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 221 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 222 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 223 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 224 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 225
 226 #define IEEE80211_HT_CTL_LEN            4
 227
 228 struct ieee80211_hdr {
 229         __le16 frame_control;
 230         __le16 duration_id;
 231         u8 addr1[ETH_ALEN];
 232         u8 addr2[ETH_ALEN];
 233         u8 addr3[ETH_ALEN];
 234         __le16 seq_ctrl;
 235         u8 addr4[ETH_ALEN];
 236 } __packed __aligned(2);
 237
 238 struct ieee80211_hdr_3addr {
 239         __le16 frame_control;
 240         __le16 duration_id;
 241         u8 addr1[ETH_ALEN];
 242         u8 addr2[ETH_ALEN];
 243         u8 addr3[ETH_ALEN];
 244         __le16 seq_ctrl;
 245 } __packed __aligned(2);
 246
 247 struct ieee80211_qos_hdr {
 248         __le16 frame_control;
 249         __le16 duration_id;
 250         u8 addr1[ETH_ALEN];
 251         u8 addr2[ETH_ALEN];
 252         u8 addr3[ETH_ALEN];
 253         __le16 seq_ctrl;
 254         __le16 qos_ctrl;
 255 } __packed __aligned(2);
 256
 257 /**
 258  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 259  * @fc: frame control bytes in little-endian byteorder
 260  */
 261 static inline bool ieee80211_has_tods(__le16 fc)
 262 {
 263         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 264 }
 265
 266 /**
 267  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 268  * @fc: frame control bytes in little-endian byteorder
 269  */
 270 static inline bool ieee80211_has_fromds(__le16 fc)
 271 {
 272         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 273 }
 274
 275 /**
 276  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 277  * @fc: frame control bytes in little-endian byteorder
 278  */
 279 static inline bool ieee80211_has_a4(__le16 fc)
 280 {
 281         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 282         return (fc & tmp) == tmp;
 283 }
 284
 285 /**
 286  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 287  * @fc: frame control bytes in little-endian byteorder
 288  */
 289 static inline bool ieee80211_has_morefrags(__le16 fc)
 290 {
 291         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 292 }
 293
 294 /**
 295  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 296  * @fc: frame control bytes in little-endian byteorder
 297  */
 298 static inline bool ieee80211_has_retry(__le16 fc)
 299 {
 300         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 301 }
 302
 303 /**
 304  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 305  * @fc: frame control bytes in little-endian byteorder
 306  */
 307 static inline bool ieee80211_has_pm(__le16 fc)
 308 {
 309         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 310 }
 311
 312 /**
 313  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 314  * @fc: frame control bytes in little-endian byteorder
 315  */
 316 static inline bool ieee80211_has_moredata(__le16 fc)
 317 {
 318         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 319 }
 320
 321 /**
 322  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 323  * @fc: frame control bytes in little-endian byteorder
 324  */
 325 static inline bool ieee80211_has_protected(__le16 fc)
 326 {
 327         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 328 }
 329
 330 /**
 331  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 332  * @fc: frame control bytes in little-endian byteorder
 333  */
 334 static inline bool ieee80211_has_order(__le16 fc)
 335 {
 336         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 337 }
 338
 339 /**
 340  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 341  * @fc: frame control bytes in little-endian byteorder
 342  */
 343 static inline bool ieee80211_is_mgmt(__le16 fc)
 344 {
 345         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 346                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 347 }
 348
 349 /**
 350  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 351  * @fc: frame control bytes in little-endian byteorder
 352  */
 353 static inline bool ieee80211_is_ctl(__le16 fc)
 354 {
 355         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 356                cpu_to_le16(IEEE80211_FTYPE_CTL);
 357 }
 358
 359 /**
 360  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 361  * @fc: frame control bytes in little-endian byteorder
 362  */
 363 static inline bool ieee80211_is_data(__le16 fc)
 364 {
 365         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 366                cpu_to_le16(IEEE80211_FTYPE_DATA);
 367 }
 368
 369 /**
 370  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 371  * @fc: frame control bytes in little-endian byteorder
 372  */
 373 static inline bool ieee80211_is_data_qos(__le16 fc)
 374 {
 375         /*
 376          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 377          * to check the one bit
 378          */
 379         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 380                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 381 }
 382
 383 /**
 384  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 385  * @fc: frame control bytes in little-endian byteorder
 386  */
 387 static inline bool ieee80211_is_data_present(__le16 fc)
 388 {
 389         /*
 390          * mask with 0x40 and test that that bit is clear to only return true
 391          * for the data-containing substypes.
 392          */
 393         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 394                cpu_to_le16(IEEE80211_FTYPE_DATA);
 395 }
 396
 397 /**
 398  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 399  * @fc: frame control bytes in little-endian byteorder
 400  */
 401 static inline bool ieee80211_is_assoc_req(__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_REQ);
 405 }
 406
 407 /**
 408  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 409  * @fc: frame control bytes in little-endian byteorder
 410  */
 411 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 412 {
 413         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 414                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 415 }
 416
 417 /**
 418  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 419  * @fc: frame control bytes in little-endian byteorder
 420  */
 421 static inline bool ieee80211_is_reassoc_req(__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_REQ);
 425 }
 426
 427 /**
 428  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 429  * @fc: frame control bytes in little-endian byteorder
 430  */
 431 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 432 {
 433         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 434                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 435 }
 436
 437 /**
 438  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 439  * @fc: frame control bytes in little-endian byteorder
 440  */
 441 static inline bool ieee80211_is_probe_req(__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_REQ);
 445 }
 446
 447 /**
 448  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 449  * @fc: frame control bytes in little-endian byteorder
 450  */
 451 static inline bool ieee80211_is_probe_resp(__le16 fc)
 452 {
 453         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 454                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 455 }
 456
 457 /**
 458  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 459  * @fc: frame control bytes in little-endian byteorder
 460  */
 461 static inline bool ieee80211_is_beacon(__le16 fc)
 462 {
 463         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 464                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 465 }
 466
 467 /**
 468  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 469  * @fc: frame control bytes in little-endian byteorder
 470  */
 471 static inline bool ieee80211_is_atim(__le16 fc)
 472 {
 473         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 474                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 475 }
 476
 477 /**
 478  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 479  * @fc: frame control bytes in little-endian byteorder
 480  */
 481 static inline bool ieee80211_is_disassoc(__le16 fc)
 482 {
 483         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 484                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 485 }
 486
 487 /**
 488  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 489  * @fc: frame control bytes in little-endian byteorder
 490  */
 491 static inline bool ieee80211_is_auth(__le16 fc)
 492 {
 493         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 494                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 495 }
 496
 497 /**
 498  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 499  * @fc: frame control bytes in little-endian byteorder
 500  */
 501 static inline bool ieee80211_is_deauth(__le16 fc)
 502 {
 503         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 504                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 505 }
 506
 507 /**
 508  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 509  * @fc: frame control bytes in little-endian byteorder
 510  */
 511 static inline bool ieee80211_is_action(__le16 fc)
 512 {
 513         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 514                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 515 }
 516
 517 /**
 518  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 519  * @fc: frame control bytes in little-endian byteorder
 520  */
 521 static inline bool ieee80211_is_back_req(__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_REQ);
 525 }
 526
 527 /**
 528  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 529  * @fc: frame control bytes in little-endian byteorder
 530  */
 531 static inline bool ieee80211_is_back(__le16 fc)
 532 {
 533         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 534                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 535 }
 536
 537 /**
 538  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 539  * @fc: frame control bytes in little-endian byteorder
 540  */
 541 static inline bool ieee80211_is_pspoll(__le16 fc)
 542 {
 543         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 544                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 545 }
 546
 547 /**
 548  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 549  * @fc: frame control bytes in little-endian byteorder
 550  */
 551 static inline bool ieee80211_is_rts(__le16 fc)
 552 {
 553         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 554                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 555 }
 556
 557 /**
 558  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 559  * @fc: frame control bytes in little-endian byteorder
 560  */
 561 static inline bool ieee80211_is_cts(__le16 fc)
 562 {
 563         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 564                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 565 }
 566
 567 /**
 568  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 569  * @fc: frame control bytes in little-endian byteorder
 570  */
 571 static inline bool ieee80211_is_ack(__le16 fc)
 572 {
 573         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 574                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 575 }
 576
 577 /**
 578  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 579  * @fc: frame control bytes in little-endian byteorder
 580  */
 581 static inline bool ieee80211_is_cfend(__le16 fc)
 582 {
 583         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 584                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 585 }
 586
 587 /**
 588  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 589  * @fc: frame control bytes in little-endian byteorder
 590  */
 591 static inline bool ieee80211_is_cfendack(__le16 fc)
 592 {
 593         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 594                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 595 }
 596
 597 /**
 598  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 599  * @fc: frame control bytes in little-endian byteorder
 600  */
 601 static inline bool ieee80211_is_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_NULLFUNC);
 605 }
 606
 607 /**
 608  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 609  * @fc: frame control bytes in little-endian byteorder
 610  */
 611 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 612 {
 613         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 614                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 615 }
 616
 617 /**
 618  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 619  * @fc: frame control field in little-endian byteorder
 620  */
 621 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 622 {
 623         /* IEEE 802.11-2012, definition of "bufferable management frame";
 624          * note that this ignores the IBSS special case. */
 625         return ieee80211_is_mgmt(fc) &&
 626                (ieee80211_is_action(fc) ||
 627                 ieee80211_is_disassoc(fc) ||
 628                 ieee80211_is_deauth(fc));
 629 }
 630
 631 /**
 632  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 633  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 634  */
 635 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 636 {
 637         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 638 }
 639
 640 struct ieee80211s_hdr {
 641         u8 flags;
 642         u8 ttl;
 643         __le32 seqnum;
 644         u8 eaddr1[ETH_ALEN];
 645         u8 eaddr2[ETH_ALEN];
 646 } __packed __aligned(2);
 647
 648 /* Mesh flags */
 649 #define MESH_FLAGS_AE_A4        0x1
 650 #define MESH_FLAGS_AE_A5_A6     0x2
 651 #define MESH_FLAGS_AE           0x3
 652 #define MESH_FLAGS_PS_DEEP      0x4
 653
 654 /**
 655  * enum ieee80211_preq_flags - mesh PREQ element flags
 656  *
 657  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 658  */
 659 enum ieee80211_preq_flags {
 660         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 661 };
 662
 663 /**
 664  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 665  *
 666  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 667  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 668  */
 669 enum ieee80211_preq_target_flags {
 670         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 671         IEEE80211_PREQ_USN_FLAG = 1<<2,
 672 };
 673
 674 /**
 675  * struct ieee80211_quiet_ie
 676  *
 677  * This structure refers to "Quiet information element"
 678  */
 679 struct ieee80211_quiet_ie {
 680         u8 count;
 681         u8 period;
 682         __le16 duration;
 683         __le16 offset;
 684 } __packed;
 685
 686 /**
 687  * struct ieee80211_msrment_ie
 688  *
 689  * This structure refers to "Measurement Request/Report information element"
 690  */
 691 struct ieee80211_msrment_ie {
 692         u8 token;
 693         u8 mode;
 694         u8 type;
 695         u8 request[0];
 696 } __packed;
 697
 698 /**
 699  * struct ieee80211_channel_sw_ie
 700  *
 701  * This structure refers to "Channel Switch Announcement information element"
 702  */
 703 struct ieee80211_channel_sw_ie {
 704         u8 mode;
 705         u8 new_ch_num;
 706         u8 count;
 707 } __packed;
 708
 709 /**
 710  * struct ieee80211_ext_chansw_ie
 711  *
 712  * This structure represents the "Extended Channel Switch Announcement element"
 713  */
 714 struct ieee80211_ext_chansw_ie {
 715         u8 mode;
 716         u8 new_operating_class;
 717         u8 new_ch_num;
 718         u8 count;
 719 } __packed;
 720
 721 /**
 722  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 723  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 724  *      values here
 725  * This structure represents the "Secondary Channel Offset element"
 726  */
 727 struct ieee80211_sec_chan_offs_ie {
 728         u8 sec_chan_offs;
 729 } __packed;
 730
 731 /**
 732  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 733  *
 734  * This structure represents the "Mesh Channel Switch Paramters element"
 735  */
 736 struct ieee80211_mesh_chansw_params_ie {
 737         u8 mesh_ttl;
 738         u8 mesh_flags;
 739         __le16 mesh_reason;
 740         __le16 mesh_pre_value;
 741 } __packed;
 742
 743 /**
 744  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 745  */
 746 struct ieee80211_wide_bw_chansw_ie {
 747         u8 new_channel_width;
 748         u8 new_center_freq_seg0, new_center_freq_seg1;
 749 } __packed;
 750
 751 /**
 752  * struct ieee80211_tim
 753  *
 754  * This structure refers to "Traffic Indication Map information element"
 755  */
 756 struct ieee80211_tim_ie {
 757         u8 dtim_count;
 758         u8 dtim_period;
 759         u8 bitmap_ctrl;
 760         /* variable size: 1 - 251 bytes */
 761         u8 virtual_map[1];
 762 } __packed;
 763
 764 /**
 765  * struct ieee80211_meshconf_ie
 766  *
 767  * This structure refers to "Mesh Configuration information element"
 768  */
 769 struct ieee80211_meshconf_ie {
 770         u8 meshconf_psel;
 771         u8 meshconf_pmetric;
 772         u8 meshconf_congest;
 773         u8 meshconf_synch;
 774         u8 meshconf_auth;
 775         u8 meshconf_form;
 776         u8 meshconf_cap;
 777 } __packed;
 778
 779 /**
 780  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 781  *
 782  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 783  *      additional mesh peerings with other mesh STAs
 784  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 785  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 786  *      is ongoing
 787  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 788  *      neighbors in deep sleep mode
 789  */
 790 enum mesh_config_capab_flags {
 791         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 792         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 793         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 794         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 795 };
 796
 797 /**
 798  * mesh channel switch parameters element's flag indicator
 799  *
 800  */
 801 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 802 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 803 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 804
 805 /**
 806  * struct ieee80211_rann_ie
 807  *
 808  * This structure refers to "Root Announcement information element"
 809  */
 810 struct ieee80211_rann_ie {
 811         u8 rann_flags;
 812         u8 rann_hopcount;
 813         u8 rann_ttl;
 814         u8 rann_addr[ETH_ALEN];
 815         __le32 rann_seq;
 816         __le32 rann_interval;
 817         __le32 rann_metric;
 818 } __packed;
 819
 820 enum ieee80211_rann_flags {
 821         RANN_FLAG_IS_GATE = 1 << 0,
 822 };
 823
 824 enum ieee80211_ht_chanwidth_values {
 825         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 826         IEEE80211_HT_CHANWIDTH_ANY = 1,
 827 };
 828
 829 /**
 830  * enum ieee80211_opmode_bits - VHT operating mode field bits
 831  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 832  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 833  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 834  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 835  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 836  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 837  *      (the NSS value is the value of this field + 1)
 838  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 839  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 840  *      using a beamforming steering matrix
 841  */
 842 enum ieee80211_vht_opmode_bits {
 843         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 844         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 845         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 846         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 847         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 848         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 849         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 850         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 851 };
 852
 853 #define WLAN_SA_QUERY_TR_ID_LEN 2
 854 #define WLAN_MEMBERSHIP_LEN 8
 855 #define WLAN_USER_POSITION_LEN 16
 856
 857 /**
 858  * struct ieee80211_tpc_report_ie
 859  *
 860  * This structure refers to "TPC Report element"
 861  */
 862 struct ieee80211_tpc_report_ie {
 863         u8 tx_power;
 864         u8 link_margin;
 865 } __packed;
 866
 867 struct ieee80211_mgmt {
 868         __le16 frame_control;
 869         __le16 duration;
 870         u8 da[ETH_ALEN];
 871         u8 sa[ETH_ALEN];
 872         u8 bssid[ETH_ALEN];
 873         __le16 seq_ctrl;
 874         union {
 875                 struct {
 876                         __le16 auth_alg;
 877                         __le16 auth_transaction;
 878                         __le16 status_code;
 879                         /* possibly followed by Challenge text */
 880                         u8 variable[0];
 881                 } __packed auth;
 882                 struct {
 883                         __le16 reason_code;
 884                 } __packed deauth;
 885                 struct {
 886                         __le16 capab_info;
 887                         __le16 listen_interval;
 888                         /* followed by SSID and Supported rates */
 889                         u8 variable[0];
 890                 } __packed assoc_req;
 891                 struct {
 892                         __le16 capab_info;
 893                         __le16 status_code;
 894                         __le16 aid;
 895                         /* followed by Supported rates */
 896                         u8 variable[0];
 897                 } __packed assoc_resp, reassoc_resp;
 898                 struct {
 899                         __le16 capab_info;
 900                         __le16 listen_interval;
 901                         u8 current_ap[ETH_ALEN];
 902                         /* followed by SSID and Supported rates */
 903                         u8 variable[0];
 904                 } __packed reassoc_req;
 905                 struct {
 906                         __le16 reason_code;
 907                 } __packed disassoc;
 908                 struct {
 909                         __le64 timestamp;
 910                         __le16 beacon_int;
 911                         __le16 capab_info;
 912                         /* followed by some of SSID, Supported rates,
 913                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 914                         u8 variable[0];
 915                 } __packed beacon;
 916                 struct {
 917                         /* only variable items: SSID, Supported rates */
 918                         u8 variable[0];
 919                 } __packed probe_req;
 920                 struct {
 921                         __le64 timestamp;
 922                         __le16 beacon_int;
 923                         __le16 capab_info;
 924                         /* followed by some of SSID, Supported rates,
 925                          * FH Params, DS Params, CF Params, IBSS Params */
 926                         u8 variable[0];
 927                 } __packed probe_resp;
 928                 struct {
 929                         u8 category;
 930                         union {
 931                                 struct {
 932                                         u8 action_code;
 933                                         u8 dialog_token;
 934                                         u8 status_code;
 935                                         u8 variable[0];
 936                                 } __packed wme_action;
 937                                 struct{
 938                                         u8 action_code;
 939                                         u8 variable[0];
 940                                 } __packed chan_switch;
 941                                 struct{
 942                                         u8 action_code;
 943                                         struct ieee80211_ext_chansw_ie data;
 944                                         u8 variable[0];
 945                                 } __packed ext_chan_switch;
 946                                 struct{
 947                                         u8 action_code;
 948                                         u8 dialog_token;
 949                                         u8 element_id;
 950                                         u8 length;
 951                                         struct ieee80211_msrment_ie msr_elem;
 952                                 } __packed measurement;
 953                                 struct{
 954                                         u8 action_code;
 955                                         u8 dialog_token;
 956                                         __le16 capab;
 957                                         __le16 timeout;
 958                                         __le16 start_seq_num;
 959                                 } __packed addba_req;
 960                                 struct{
 961                                         u8 action_code;
 962                                         u8 dialog_token;
 963                                         __le16 status;
 964                                         __le16 capab;
 965                                         __le16 timeout;
 966                                 } __packed addba_resp;
 967                                 struct{
 968                                         u8 action_code;
 969                                         __le16 params;
 970                                         __le16 reason_code;
 971                                 } __packed delba;
 972                                 struct {
 973                                         u8 action_code;
 974                                         u8 variable[0];
 975                                 } __packed self_prot;
 976                                 struct{
 977                                         u8 action_code;
 978                                         u8 variable[0];
 979                                 } __packed mesh_action;
 980                                 struct {
 981                                         u8 action;
 982                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 983                                 } __packed sa_query;
 984                                 struct {
 985                                         u8 action;
 986                                         u8 smps_control;
 987                                 } __packed ht_smps;
 988                                 struct {
 989                                         u8 action_code;
 990                                         u8 chanwidth;
 991                                 } __packed ht_notify_cw;
 992                                 struct {
 993                                         u8 action_code;
 994                                         u8 dialog_token;
 995                                         __le16 capability;
 996                                         u8 variable[0];
 997                                 } __packed tdls_discover_resp;
 998                                 struct {
 999                                         u8 action_code;
1000                                         u8 operating_mode;
1001                                 } __packed vht_opmode_notif;
1002                                 struct {
1003                                         u8 action_code;
1004                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1005                                         u8 position[WLAN_USER_POSITION_LEN];
1006                                 } __packed vht_group_notif;
1007                                 struct {
1008                                         u8 action_code;
1009                                         u8 dialog_token;
1010                                         u8 tpc_elem_id;
1011                                         u8 tpc_elem_length;
1012                                         struct ieee80211_tpc_report_ie tpc;
1013                                 } __packed tpc_report;
1014                         } u;
1015                 } __packed action;
1016         } u;
1017 } __packed __aligned(2);
1018
1019 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1020 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1021
1022 /* mgmt header + 1 byte category code */
1023 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1024
1025
1026 /* Management MIC information element (IEEE 802.11w) */
1027 struct ieee80211_mmie {
1028         u8 element_id;
1029         u8 length;
1030         __le16 key_id;
1031         u8 sequence_number[6];
1032         u8 mic[8];
1033 } __packed;
1034
1035 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1036 struct ieee80211_mmie_16 {
1037         u8 element_id;
1038         u8 length;
1039         __le16 key_id;
1040         u8 sequence_number[6];
1041         u8 mic[16];
1042 } __packed;
1043
1044 struct ieee80211_vendor_ie {
1045         u8 element_id;
1046         u8 len;
1047         u8 oui[3];
1048         u8 oui_type;
1049 } __packed;
1050
1051 struct ieee80211_wmm_ac_param {
1052         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1053         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1054         __le16 txop_limit;
1055 } __packed;
1056
1057 struct ieee80211_wmm_param_ie {
1058         u8 element_id; /* Element ID: 221 (0xdd); */
1059         u8 len; /* Length: 24 */
1060         /* required fields for WMM version 1 */
1061         u8 oui[3]; /* 00:50:f2 */
1062         u8 oui_type; /* 2 */
1063         u8 oui_subtype; /* 1 */
1064         u8 version; /* 1 for WMM version 1.0 */
1065         u8 qos_info; /* AP/STA specific QoS info */
1066         u8 reserved; /* 0 */
1067         /* AC_BE, AC_BK, AC_VI, AC_VO */
1068         struct ieee80211_wmm_ac_param ac[4];
1069 } __packed;
1070
1071 /* Control frames */
1072 struct ieee80211_rts {
1073         __le16 frame_control;
1074         __le16 duration;
1075         u8 ra[ETH_ALEN];
1076         u8 ta[ETH_ALEN];
1077 } __packed __aligned(2);
1078
1079 struct ieee80211_cts {
1080         __le16 frame_control;
1081         __le16 duration;
1082         u8 ra[ETH_ALEN];
1083 } __packed __aligned(2);
1084
1085 struct ieee80211_pspoll {
1086         __le16 frame_control;
1087         __le16 aid;
1088         u8 bssid[ETH_ALEN];
1089         u8 ta[ETH_ALEN];
1090 } __packed __aligned(2);
1091
1092 /* TDLS */
1093
1094 /* Channel switch timing */
1095 struct ieee80211_ch_switch_timing {
1096         __le16 switch_time;
1097         __le16 switch_timeout;
1098 } __packed;
1099
1100 /* Link-id information element */
1101 struct ieee80211_tdls_lnkie {
1102         u8 ie_type; /* Link Identifier IE */
1103         u8 ie_len;
1104         u8 bssid[ETH_ALEN];
1105         u8 init_sta[ETH_ALEN];
1106         u8 resp_sta[ETH_ALEN];
1107 } __packed;
1108
1109 struct ieee80211_tdls_data {
1110         u8 da[ETH_ALEN];
1111         u8 sa[ETH_ALEN];
1112         __be16 ether_type;
1113         u8 payload_type;
1114         u8 category;
1115         u8 action_code;
1116         union {
1117                 struct {
1118                         u8 dialog_token;
1119                         __le16 capability;
1120                         u8 variable[0];
1121                 } __packed setup_req;
1122                 struct {
1123                         __le16 status_code;
1124                         u8 dialog_token;
1125                         __le16 capability;
1126                         u8 variable[0];
1127                 } __packed setup_resp;
1128                 struct {
1129                         __le16 status_code;
1130                         u8 dialog_token;
1131                         u8 variable[0];
1132                 } __packed setup_cfm;
1133                 struct {
1134                         __le16 reason_code;
1135                         u8 variable[0];
1136                 } __packed teardown;
1137                 struct {
1138                         u8 dialog_token;
1139                         u8 variable[0];
1140                 } __packed discover_req;
1141                 struct {
1142                         u8 target_channel;
1143                         u8 oper_class;
1144                         u8 variable[0];
1145                 } __packed chan_switch_req;
1146                 struct {
1147                         __le16 status_code;
1148                         u8 variable[0];
1149                 } __packed chan_switch_resp;
1150         } u;
1151 } __packed;
1152
1153 /*
1154  * Peer-to-Peer IE attribute related definitions.
1155  */
1156 /**
1157  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1158  */
1159 enum ieee80211_p2p_attr_id {
1160         IEEE80211_P2P_ATTR_STATUS = 0,
1161         IEEE80211_P2P_ATTR_MINOR_REASON,
1162         IEEE80211_P2P_ATTR_CAPABILITY,
1163         IEEE80211_P2P_ATTR_DEVICE_ID,
1164         IEEE80211_P2P_ATTR_GO_INTENT,
1165         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1166         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1167         IEEE80211_P2P_ATTR_GROUP_BSSID,
1168         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1169         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1170         IEEE80211_P2P_ATTR_MANAGABILITY,
1171         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1172         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1173         IEEE80211_P2P_ATTR_DEVICE_INFO,
1174         IEEE80211_P2P_ATTR_GROUP_INFO,
1175         IEEE80211_P2P_ATTR_GROUP_ID,
1176         IEEE80211_P2P_ATTR_INTERFACE,
1177         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1178         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1179         /* 19 - 220: Reserved */
1180         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1181
1182         IEEE80211_P2P_ATTR_MAX
1183 };
1184
1185 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1186 /* Typical max value used here */
1187 #define IEEE80211_P2P_NOA_DESC_MAX      4
1188
1189 struct ieee80211_p2p_noa_desc {
1190         u8 count;
1191         __le32 duration;
1192         __le32 interval;
1193         __le32 start_time;
1194 } __packed;
1195
1196 struct ieee80211_p2p_noa_attr {
1197         u8 index;
1198         u8 oppps_ctwindow;
1199         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1200 } __packed;
1201
1202 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1203 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1204
1205 /**
1206  * struct ieee80211_bar - HT Block Ack Request
1207  *
1208  * This structure refers to "HT BlockAckReq" as
1209  * described in 802.11n draft section 7.2.1.7.1
1210  */
1211 struct ieee80211_bar {
1212         __le16 frame_control;
1213         __le16 duration;
1214         __u8 ra[ETH_ALEN];
1215         __u8 ta[ETH_ALEN];
1216         __le16 control;
1217         __le16 start_seq_num;
1218 } __packed;
1219
1220 /* 802.11 BAR control masks */
1221 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1222 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1223 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1224 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1225 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1226
1227 #define IEEE80211_HT_MCS_MASK_LEN               10
1228
1229 /**
1230  * struct ieee80211_mcs_info - MCS information
1231  * @rx_mask: RX mask
1232  * @rx_highest: highest supported RX rate. If set represents
1233  *      the highest supported RX data rate in units of 1 Mbps.
1234  *      If this field is 0 this value should not be used to
1235  *      consider the highest RX data rate supported.
1236  * @tx_params: TX parameters
1237  */
1238 struct ieee80211_mcs_info {
1239         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1240         __le16 rx_highest;
1241         u8 tx_params;
1242         u8 reserved[3];
1243 } __packed;
1244
1245 /* 802.11n HT capability MSC set */
1246 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1247 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1248 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1249 /* value 0 == 1 stream etc */
1250 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1251 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1252 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1253 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1254
1255 /*
1256  * 802.11n D5.0 20.3.5 / 20.6 says:
1257  * - indices 0 to 7 and 32 are single spatial stream
1258  * - 8 to 31 are multiple spatial streams using equal modulation
1259  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1260  * - remainder are multiple spatial streams using unequal modulation
1261  */
1262 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1263 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1264         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1265
1266 /**
1267  * struct ieee80211_ht_cap - HT capabilities
1268  *
1269  * This structure is the "HT capabilities element" as
1270  * described in 802.11n D5.0 7.3.2.57
1271  */
1272 struct ieee80211_ht_cap {
1273         __le16 cap_info;
1274         u8 ampdu_params_info;
1275
1276         /* 16 bytes MCS information */
1277         struct ieee80211_mcs_info mcs;
1278
1279         __le16 extended_ht_cap_info;
1280         __le32 tx_BF_cap_info;
1281         u8 antenna_selection_info;
1282 } __packed;
1283
1284 /* 802.11n HT capabilities masks (for cap_info) */
1285 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1286 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1287 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1288 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1289 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1290 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1291 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1292 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1293 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1294 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1295 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1296 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1297 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1298 #define IEEE80211_HT_CAP_RESERVED               0x2000
1299 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1300 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1301
1302 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1303 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1304 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1305 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1306 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1307 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1308 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1309 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1310
1311 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1312 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1313 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1314 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1315
1316 /*
1317  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1318  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1319  */
1320 enum ieee80211_max_ampdu_length_exp {
1321         IEEE80211_HT_MAX_AMPDU_8K = 0,
1322         IEEE80211_HT_MAX_AMPDU_16K = 1,
1323         IEEE80211_HT_MAX_AMPDU_32K = 2,
1324         IEEE80211_HT_MAX_AMPDU_64K = 3
1325 };
1326
1327 /*
1328  * Maximum length of AMPDU that the STA can receive in VHT.
1329  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1330  */
1331 enum ieee80211_vht_max_ampdu_length_exp {
1332         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1333         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1334         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1335         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1336         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1337         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1338         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1339         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1340 };
1341
1342 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1343
1344 /* Minimum MPDU start spacing */
1345 enum ieee80211_min_mpdu_spacing {
1346         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1347         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1348         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1349         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1350         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1351         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1352         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1353         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1354 };
1355
1356 /**
1357  * struct ieee80211_ht_operation - HT operation IE
1358  *
1359  * This structure is the "HT operation element" as
1360  * described in 802.11n-2009 7.3.2.57
1361  */
1362 struct ieee80211_ht_operation {
1363         u8 primary_chan;
1364         u8 ht_param;
1365         __le16 operation_mode;
1366         __le16 stbc_param;
1367         u8 basic_set[16];
1368 } __packed;
1369
1370 /* for ht_param */
1371 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1372 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1373 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1374 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1375 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1376 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1377
1378 /* for operation_mode */
1379 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1380 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1381 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1382 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1383 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1384 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1385 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1386
1387 /* for stbc_param */
1388 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1389 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1390 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1391 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1392 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1393 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1394
1395
1396 /* block-ack parameters */
1397 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1398 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1399 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1400 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1401 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1402 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1403
1404 /*
1405  * A-PMDU buffer sizes
1406  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1407  */
1408 #define IEEE80211_MIN_AMPDU_BUF 0x8
1409 #define IEEE80211_MAX_AMPDU_BUF 0x40
1410
1411
1412 /* Spatial Multiplexing Power Save Modes (for capability) */
1413 #define WLAN_HT_CAP_SM_PS_STATIC        0
1414 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1415 #define WLAN_HT_CAP_SM_PS_INVALID       2
1416 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1417
1418 /* for SM power control field lower two bits */
1419 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1420 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1421 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1422
1423 /**
1424  * struct ieee80211_vht_mcs_info - VHT MCS information
1425  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1426  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1427  *      STA can receive. Rate expressed in units of 1 Mbps.
1428  *      If this field is 0 this value should not be used to
1429  *      consider the highest RX data rate supported.
1430  *      The top 3 bits of this field are reserved.
1431  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1432  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1433  *      STA can transmit. Rate expressed in units of 1 Mbps.
1434  *      If this field is 0 this value should not be used to
1435  *      consider the highest TX data rate supported.
1436  *      The top 3 bits of this field are reserved.
1437  */
1438 struct ieee80211_vht_mcs_info {
1439         __le16 rx_mcs_map;
1440         __le16 rx_highest;
1441         __le16 tx_mcs_map;
1442         __le16 tx_highest;
1443 } __packed;
1444
1445 /**
1446  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1447  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1448  *      number of streams
1449  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1450  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1451  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1452  *
1453  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1454  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1455  * both split into 8 subfields by number of streams. These values indicate
1456  * which MCSes are supported for the number of streams the value appears
1457  * for.
1458  */
1459 enum ieee80211_vht_mcs_support {
1460         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1461         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1462         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1463         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1464 };
1465
1466 /**
1467  * struct ieee80211_vht_cap - VHT capabilities
1468  *
1469  * This structure is the "VHT capabilities element" as
1470  * described in 802.11ac D3.0 8.4.2.160
1471  * @vht_cap_info: VHT capability info
1472  * @supp_mcs: VHT MCS supported rates
1473  */
1474 struct ieee80211_vht_cap {
1475         __le32 vht_cap_info;
1476         struct ieee80211_vht_mcs_info supp_mcs;
1477 } __packed;
1478
1479 /**
1480  * enum ieee80211_vht_chanwidth - VHT channel width
1481  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1482  *      determine the channel width (20 or 40 MHz)
1483  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1484  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1485  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1486  */
1487 enum ieee80211_vht_chanwidth {
1488         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1489         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1490         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1491         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1492 };
1493
1494 /**
1495  * struct ieee80211_vht_operation - VHT operation IE
1496  *
1497  * This structure is the "VHT operation element" as
1498  * described in 802.11ac D3.0 8.4.2.161
1499  * @chan_width: Operating channel width
1500  * @center_freq_seg1_idx: center freq segment 1 index
1501  * @center_freq_seg2_idx: center freq segment 2 index
1502  * @basic_mcs_set: VHT Basic MCS rate set
1503  */
1504 struct ieee80211_vht_operation {
1505         u8 chan_width;
1506         u8 center_freq_seg1_idx;
1507         u8 center_freq_seg2_idx;
1508         __le16 basic_mcs_set;
1509 } __packed;
1510
1511
1512 /* 802.11ac VHT Capabilities */
1513 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1514 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1515 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1516 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
1517 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1518 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1519 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1520 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1521 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1522 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1523 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1524 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1525 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1526 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1527 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1528 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1529 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1530 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1531 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1532 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1533                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1534 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1535 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1536                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1537 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1538 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1539 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1540 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1541 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1542 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1543                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1544 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1545 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1546 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1547 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1548
1549 /* Authentication algorithms */
1550 #define WLAN_AUTH_OPEN 0
1551 #define WLAN_AUTH_SHARED_KEY 1
1552 #define WLAN_AUTH_FT 2
1553 #define WLAN_AUTH_SAE 3
1554 #define WLAN_AUTH_LEAP 128
1555
1556 #define WLAN_AUTH_CHALLENGE_LEN 128
1557
1558 #define WLAN_CAPABILITY_ESS             (1<<0)
1559 #define WLAN_CAPABILITY_IBSS            (1<<1)
1560
1561 /*
1562  * A mesh STA sets the ESS and IBSS capability bits to zero.
1563  * however, this holds true for p2p probe responses (in the p2p_find
1564  * phase) as well.
1565  */
1566 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1567         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1568
1569 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1570 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1571 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1572 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1573 #define WLAN_CAPABILITY_PBCC            (1<<6)
1574 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1575
1576 /* 802.11h */
1577 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1578 #define WLAN_CAPABILITY_QOS             (1<<9)
1579 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1580 #define WLAN_CAPABILITY_APSD            (1<<11)
1581 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1582 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1583 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1584 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1585
1586 /* DMG (60gHz) 802.11ad */
1587 /* type - bits 0..1 */
1588 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1589 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1590 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1591 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1592
1593 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1594 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1595 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1596 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1597
1598 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1599 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1600
1601 /* measurement */
1602 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1603 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1604 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1605
1606 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1607 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1608 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1609
1610 /* 802.11g ERP information element */
1611 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1612 #define WLAN_ERP_USE_PROTECTION (1<<1)
1613 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1614
1615 /* WLAN_ERP_BARKER_PREAMBLE values */
1616 enum {
1617         WLAN_ERP_PREAMBLE_SHORT = 0,
1618         WLAN_ERP_PREAMBLE_LONG = 1,
1619 };
1620
1621 /* Band ID, 802.11ad #8.4.1.45 */
1622 enum {
1623         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1624         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1625         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1626         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1627         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1628         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1629 };
1630
1631 /* Status codes */
1632 enum ieee80211_statuscode {
1633         WLAN_STATUS_SUCCESS = 0,
1634         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1635         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1636         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1637         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1638         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1639         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1640         WLAN_STATUS_CHALLENGE_FAIL = 15,
1641         WLAN_STATUS_AUTH_TIMEOUT = 16,
1642         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1643         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1644         /* 802.11b */
1645         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1646         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1647         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1648         /* 802.11h */
1649         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1650         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1651         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1652         /* 802.11g */
1653         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1654         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1655         /* 802.11w */
1656         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1657         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1658         /* 802.11i */
1659         WLAN_STATUS_INVALID_IE = 40,
1660         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1661         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1662         WLAN_STATUS_INVALID_AKMP = 43,
1663         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1664         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1665         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1666         /* 802.11e */
1667         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1668         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1669         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1670         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1671         WLAN_STATUS_REQUEST_DECLINED = 37,
1672         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1673         WLAN_STATUS_CHANGE_TSPEC = 39,
1674         WLAN_STATUS_WAIT_TS_DELAY = 47,
1675         WLAN_STATUS_NO_DIRECT_LINK = 48,
1676         WLAN_STATUS_STA_NOT_PRESENT = 49,
1677         WLAN_STATUS_STA_NOT_QSTA = 50,
1678         /* 802.11s */
1679         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1680         WLAN_STATUS_FCG_NOT_SUPP = 78,
1681         WLAN_STATUS_STA_NO_TBTT = 78,
1682         /* 802.11ad */
1683         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1684         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1685         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1686         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1687         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1688         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1689         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1690         WLAN_STATUS_REJECT_DSE_BAND = 96,
1691         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1692         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1693 };
1694
1695
1696 /* Reason codes */
1697 enum ieee80211_reasoncode {
1698         WLAN_REASON_UNSPECIFIED = 1,
1699         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1700         WLAN_REASON_DEAUTH_LEAVING = 3,
1701         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1702         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1703         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1704         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1705         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1706         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1707         /* 802.11h */
1708         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1709         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1710         /* 802.11i */
1711         WLAN_REASON_INVALID_IE = 13,
1712         WLAN_REASON_MIC_FAILURE = 14,
1713         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1714         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1715         WLAN_REASON_IE_DIFFERENT = 17,
1716         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1717         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1718         WLAN_REASON_INVALID_AKMP = 20,
1719         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1720         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1721         WLAN_REASON_IEEE8021X_FAILED = 23,
1722         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1723         /* TDLS (802.11z) */
1724         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1725         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1726         /* 802.11e */
1727         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1728         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1729         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1730         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1731         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1732         WLAN_REASON_QSTA_NOT_USE = 37,
1733         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1734         WLAN_REASON_QSTA_TIMEOUT = 39,
1735         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1736         /* 802.11s */
1737         WLAN_REASON_MESH_PEER_CANCELED = 52,
1738         WLAN_REASON_MESH_MAX_PEERS = 53,
1739         WLAN_REASON_MESH_CONFIG = 54,
1740         WLAN_REASON_MESH_CLOSE = 55,
1741         WLAN_REASON_MESH_MAX_RETRIES = 56,
1742         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1743         WLAN_REASON_MESH_INVALID_GTK = 58,
1744         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1745         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1746         WLAN_REASON_MESH_PATH_ERROR = 61,
1747         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1748         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1749         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1750         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1751         WLAN_REASON_MESH_CHAN = 66,
1752 };
1753
1754
1755 /* Information Element IDs */
1756 enum ieee80211_eid {
1757         WLAN_EID_SSID = 0,
1758         WLAN_EID_SUPP_RATES = 1,
1759         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1760         WLAN_EID_DS_PARAMS = 3,
1761         WLAN_EID_CF_PARAMS = 4,
1762         WLAN_EID_TIM = 5,
1763         WLAN_EID_IBSS_PARAMS = 6,
1764         WLAN_EID_COUNTRY = 7,
1765         /* 8, 9 reserved */
1766         WLAN_EID_REQUEST = 10,
1767         WLAN_EID_QBSS_LOAD = 11,
1768         WLAN_EID_EDCA_PARAM_SET = 12,
1769         WLAN_EID_TSPEC = 13,
1770         WLAN_EID_TCLAS = 14,
1771         WLAN_EID_SCHEDULE = 15,
1772         WLAN_EID_CHALLENGE = 16,
1773         /* 17-31 reserved for challenge text extension */
1774         WLAN_EID_PWR_CONSTRAINT = 32,
1775         WLAN_EID_PWR_CAPABILITY = 33,
1776         WLAN_EID_TPC_REQUEST = 34,
1777         WLAN_EID_TPC_REPORT = 35,
1778         WLAN_EID_SUPPORTED_CHANNELS = 36,
1779         WLAN_EID_CHANNEL_SWITCH = 37,
1780         WLAN_EID_MEASURE_REQUEST = 38,
1781         WLAN_EID_MEASURE_REPORT = 39,
1782         WLAN_EID_QUIET = 40,
1783         WLAN_EID_IBSS_DFS = 41,
1784         WLAN_EID_ERP_INFO = 42,
1785         WLAN_EID_TS_DELAY = 43,
1786         WLAN_EID_TCLAS_PROCESSING = 44,
1787         WLAN_EID_HT_CAPABILITY = 45,
1788         WLAN_EID_QOS_CAPA = 46,
1789         /* 47 reserved for Broadcom */
1790         WLAN_EID_RSN = 48,
1791         WLAN_EID_802_15_COEX = 49,
1792         WLAN_EID_EXT_SUPP_RATES = 50,
1793         WLAN_EID_AP_CHAN_REPORT = 51,
1794         WLAN_EID_NEIGHBOR_REPORT = 52,
1795         WLAN_EID_RCPI = 53,
1796         WLAN_EID_MOBILITY_DOMAIN = 54,
1797         WLAN_EID_FAST_BSS_TRANSITION = 55,
1798         WLAN_EID_TIMEOUT_INTERVAL = 56,
1799         WLAN_EID_RIC_DATA = 57,
1800         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1801         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1802         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1803         WLAN_EID_HT_OPERATION = 61,
1804         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1805         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1806         WLAN_EID_ANTENNA_INFO = 64,
1807         WLAN_EID_RSNI = 65,
1808         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1809         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1810         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1811         WLAN_EID_TIME_ADVERTISEMENT = 69,
1812         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1813         WLAN_EID_MULTIPLE_BSSID = 71,
1814         WLAN_EID_BSS_COEX_2040 = 72,
1815         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1816         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1817         WLAN_EID_RIC_DESCRIPTOR = 75,
1818         WLAN_EID_MMIE = 76,
1819         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1820         WLAN_EID_EVENT_REQUEST = 78,
1821         WLAN_EID_EVENT_REPORT = 79,
1822         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1823         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1824         WLAN_EID_LOCATION_PARAMS = 82,
1825         WLAN_EID_NON_TX_BSSID_CAP =  83,
1826         WLAN_EID_SSID_LIST = 84,
1827         WLAN_EID_MULTI_BSSID_IDX = 85,
1828         WLAN_EID_FMS_DESCRIPTOR = 86,
1829         WLAN_EID_FMS_REQUEST = 87,
1830         WLAN_EID_FMS_RESPONSE = 88,
1831         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1832         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1833         WLAN_EID_TSF_REQUEST = 91,
1834         WLAN_EID_TSF_RESPOSNE = 92,
1835         WLAN_EID_WNM_SLEEP_MODE = 93,
1836         WLAN_EID_TIM_BCAST_REQ = 94,
1837         WLAN_EID_TIM_BCAST_RESP = 95,
1838         WLAN_EID_COLL_IF_REPORT = 96,
1839         WLAN_EID_CHANNEL_USAGE = 97,
1840         WLAN_EID_TIME_ZONE = 98,
1841         WLAN_EID_DMS_REQUEST = 99,
1842         WLAN_EID_DMS_RESPONSE = 100,
1843         WLAN_EID_LINK_ID = 101,
1844         WLAN_EID_WAKEUP_SCHEDUL = 102,
1845         /* 103 reserved */
1846         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1847         WLAN_EID_PTI_CONTROL = 105,
1848         WLAN_EID_PU_BUFFER_STATUS = 106,
1849         WLAN_EID_INTERWORKING = 107,
1850         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1851         WLAN_EID_EXPEDITED_BW_REQ = 109,
1852         WLAN_EID_QOS_MAP_SET = 110,
1853         WLAN_EID_ROAMING_CONSORTIUM = 111,
1854         WLAN_EID_EMERGENCY_ALERT = 112,
1855         WLAN_EID_MESH_CONFIG = 113,
1856         WLAN_EID_MESH_ID = 114,
1857         WLAN_EID_LINK_METRIC_REPORT = 115,
1858         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1859         WLAN_EID_PEER_MGMT = 117,
1860         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1861         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1862         WLAN_EID_BEACON_TIMING = 120,
1863         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1864         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1865         WLAN_EID_MCCAOP_ADVERT = 123,
1866         WLAN_EID_MCCAOP_TEARDOWN = 124,
1867         WLAN_EID_GANN = 125,
1868         WLAN_EID_RANN = 126,
1869         WLAN_EID_EXT_CAPABILITY = 127,
1870         /* 128, 129 reserved for Agere */
1871         WLAN_EID_PREQ = 130,
1872         WLAN_EID_PREP = 131,
1873         WLAN_EID_PERR = 132,
1874         /* 133-136 reserved for Cisco */
1875         WLAN_EID_PXU = 137,
1876         WLAN_EID_PXUC = 138,
1877         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1878         WLAN_EID_MIC = 140,
1879         WLAN_EID_DESTINATION_URI = 141,
1880         WLAN_EID_UAPSD_COEX = 142,
1881         WLAN_EID_WAKEUP_SCHEDULE = 143,
1882         WLAN_EID_EXT_SCHEDULE = 144,
1883         WLAN_EID_STA_AVAILABILITY = 145,
1884         WLAN_EID_DMG_TSPEC = 146,
1885         WLAN_EID_DMG_AT = 147,
1886         WLAN_EID_DMG_CAP = 148,
1887         /* 149 reserved for Cisco */
1888         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1889         WLAN_EID_DMG_OPERATION = 151,
1890         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1891         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1892         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1893         /* 155-156 reserved for Cisco */
1894         WLAN_EID_AWAKE_WINDOW = 157,
1895         WLAN_EID_MULTI_BAND = 158,
1896         WLAN_EID_ADDBA_EXT = 159,
1897         WLAN_EID_NEXT_PCP_LIST = 160,
1898         WLAN_EID_PCP_HANDOVER = 161,
1899         WLAN_EID_DMG_LINK_MARGIN = 162,
1900         WLAN_EID_SWITCHING_STREAM = 163,
1901         WLAN_EID_SESSION_TRANSITION = 164,
1902         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1903         WLAN_EID_CLUSTER_REPORT = 166,
1904         WLAN_EID_RELAY_CAP = 167,
1905         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1906         WLAN_EID_BEAM_LINK_MAINT = 169,
1907         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1908         WLAN_EID_U_PID = 171,
1909         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1910         /* 173 reserved for Symbol */
1911         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1912         WLAN_EID_QUIET_PERIOD_REQ = 175,
1913         /* 176 reserved for Symbol */
1914         WLAN_EID_QUIET_PERIOD_RESP = 177,
1915         /* 178-179 reserved for Symbol */
1916         /* 180 reserved for ISO/IEC 20011 */
1917         WLAN_EID_EPAC_POLICY = 182,
1918         WLAN_EID_CLISTER_TIME_OFF = 183,
1919         WLAN_EID_INTER_AC_PRIO = 184,
1920         WLAN_EID_SCS_DESCRIPTOR = 185,
1921         WLAN_EID_QLOAD_REPORT = 186,
1922         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1923         WLAN_EID_HL_STREAM_ID = 188,
1924         WLAN_EID_GCR_GROUP_ADDR = 189,
1925         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1926         WLAN_EID_VHT_CAPABILITY = 191,
1927         WLAN_EID_VHT_OPERATION = 192,
1928         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1929         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1930         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1931         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1932         WLAN_EID_AID = 197,
1933         WLAN_EID_QUIET_CHANNEL = 198,
1934         WLAN_EID_OPMODE_NOTIF = 199,
1935
1936         WLAN_EID_VENDOR_SPECIFIC = 221,
1937         WLAN_EID_QOS_PARAMETER = 222,
1938 };
1939
1940 /* Action category code */
1941 enum ieee80211_category {
1942         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1943         WLAN_CATEGORY_QOS = 1,
1944         WLAN_CATEGORY_DLS = 2,
1945         WLAN_CATEGORY_BACK = 3,
1946         WLAN_CATEGORY_PUBLIC = 4,
1947         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1948         WLAN_CATEGORY_HT = 7,
1949         WLAN_CATEGORY_SA_QUERY = 8,
1950         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1951         WLAN_CATEGORY_WNM = 10,
1952         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
1953         WLAN_CATEGORY_TDLS = 12,
1954         WLAN_CATEGORY_MESH_ACTION = 13,
1955         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1956         WLAN_CATEGORY_SELF_PROTECTED = 15,
1957         WLAN_CATEGORY_DMG = 16,
1958         WLAN_CATEGORY_WMM = 17,
1959         WLAN_CATEGORY_FST = 18,
1960         WLAN_CATEGORY_UNPROT_DMG = 20,
1961         WLAN_CATEGORY_VHT = 21,
1962         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1963         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1964 };
1965
1966 /* SPECTRUM_MGMT action code */
1967 enum ieee80211_spectrum_mgmt_actioncode {
1968         WLAN_ACTION_SPCT_MSR_REQ = 0,
1969         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1970         WLAN_ACTION_SPCT_TPC_REQ = 2,
1971         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1972         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1973 };
1974
1975 /* HT action codes */
1976 enum ieee80211_ht_actioncode {
1977         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1978         WLAN_HT_ACTION_SMPS = 1,
1979         WLAN_HT_ACTION_PSMP = 2,
1980         WLAN_HT_ACTION_PCO_PHASE = 3,
1981         WLAN_HT_ACTION_CSI = 4,
1982         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1983         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1984         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1985 };
1986
1987 /* VHT action codes */
1988 enum ieee80211_vht_actioncode {
1989         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1990         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1991         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1992 };
1993
1994 /* Self Protected Action codes */
1995 enum ieee80211_self_protected_actioncode {
1996         WLAN_SP_RESERVED = 0,
1997         WLAN_SP_MESH_PEERING_OPEN = 1,
1998         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1999         WLAN_SP_MESH_PEERING_CLOSE = 3,
2000         WLAN_SP_MGK_INFORM = 4,
2001         WLAN_SP_MGK_ACK = 5,
2002 };
2003
2004 /* Mesh action codes */
2005 enum ieee80211_mesh_actioncode {
2006         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2007         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2008         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2009         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2010         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2011         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2012         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2013         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2014         WLAN_MESH_ACTION_MCCA_TEARDOWN,
2015         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2016         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2017 };
2018
2019 /* Security key length */
2020 enum ieee80211_key_len {
2021         WLAN_KEY_LEN_WEP40 = 5,
2022         WLAN_KEY_LEN_WEP104 = 13,
2023         WLAN_KEY_LEN_CCMP = 16,
2024         WLAN_KEY_LEN_CCMP_256 = 32,
2025         WLAN_KEY_LEN_TKIP = 32,
2026         WLAN_KEY_LEN_AES_CMAC = 16,
2027         WLAN_KEY_LEN_SMS4 = 32,
2028         WLAN_KEY_LEN_GCMP = 16,
2029         WLAN_KEY_LEN_GCMP_256 = 32,
2030         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2031         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2032         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2033 };
2034
2035 #define IEEE80211_WEP_IV_LEN            4
2036 #define IEEE80211_WEP_ICV_LEN           4
2037 #define IEEE80211_CCMP_HDR_LEN          8
2038 #define IEEE80211_CCMP_MIC_LEN          8
2039 #define IEEE80211_CCMP_PN_LEN           6
2040 #define IEEE80211_CCMP_256_HDR_LEN      8
2041 #define IEEE80211_CCMP_256_MIC_LEN      16
2042 #define IEEE80211_CCMP_256_PN_LEN       6
2043 #define IEEE80211_TKIP_IV_LEN           8
2044 #define IEEE80211_TKIP_ICV_LEN          4
2045 #define IEEE80211_CMAC_PN_LEN           6
2046 #define IEEE80211_GMAC_PN_LEN           6
2047 #define IEEE80211_GCMP_HDR_LEN          8
2048 #define IEEE80211_GCMP_MIC_LEN          16
2049 #define IEEE80211_GCMP_PN_LEN           6
2050
2051 /* Public action codes */
2052 enum ieee80211_pub_actioncode {
2053         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2054         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2055 };
2056
2057 /* TDLS action codes */
2058 enum ieee80211_tdls_actioncode {
2059         WLAN_TDLS_SETUP_REQUEST = 0,
2060         WLAN_TDLS_SETUP_RESPONSE = 1,
2061         WLAN_TDLS_SETUP_CONFIRM = 2,
2062         WLAN_TDLS_TEARDOWN = 3,
2063         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2064         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2065         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2066         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2067         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2068         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2069         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2070 };
2071
2072 /* Extended Channel Switching capability to be set in the 1st byte of
2073  * the @WLAN_EID_EXT_CAPABILITY information element
2074  */
2075 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2076
2077 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2078 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2079 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2080 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2081
2082 /* Interworking capabilities are set in 7th bit of 4th byte of the
2083  * @WLAN_EID_EXT_CAPABILITY information element
2084  */
2085 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2086
2087 /*
2088  * TDLS capabililites to be enabled in the 5th byte of the
2089  * @WLAN_EID_EXT_CAPABILITY information element
2090  */
2091 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2092 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2093 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2094
2095 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
2096 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2097
2098 /* Defines the maximal number of MSDUs in an A-MSDU. */
2099 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
2100 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
2101
2102 /*
2103  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2104  * information element
2105  */
2106 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
2107
2108 /* TDLS specific payload type in the LLC/SNAP header */
2109 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2110
2111 /* BSS Coex IE information field bits */
2112 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2113
2114 /**
2115  * enum - mesh synchronization method identifier
2116  *
2117  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2118  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2119  *      that will be specified in a vendor specific information element
2120  */
2121 enum {
2122         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2123         IEEE80211_SYNC_METHOD_VENDOR = 255,
2124 };
2125
2126 /**
2127  * enum - mesh path selection protocol identifier
2128  *
2129  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2130  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2131  *      be specified in a vendor specific information element
2132  */
2133 enum {
2134         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2135         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2136 };
2137
2138 /**
2139  * enum - mesh path selection metric identifier
2140  *
2141  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2142  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2143  *      specified in a vendor specific information element
2144  */
2145 enum {
2146         IEEE80211_PATH_METRIC_AIRTIME = 1,
2147         IEEE80211_PATH_METRIC_VENDOR = 255,
2148 };
2149
2150 /**
2151  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2152  *
2153  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2154  *
2155  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2156  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2157  *      this value
2158  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2159  *      the proactive PREQ with proactive PREP subfield set to 0
2160  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2161  *      supports the proactive PREQ with proactive PREP subfield set to 1
2162  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2163  *      the proactive RANN
2164  */
2165 enum ieee80211_root_mode_identifier {
2166         IEEE80211_ROOTMODE_NO_ROOT = 0,
2167         IEEE80211_ROOTMODE_ROOT = 1,
2168         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2169         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2170         IEEE80211_PROACTIVE_RANN = 4,
2171 };
2172
2173 /*
2174  * IEEE 802.11-2007 7.3.2.9 Country information element
2175  *
2176  * Minimum length is 8 octets, ie len must be evenly
2177  * divisible by 2
2178  */
2179
2180 /* Although the spec says 8 I'm seeing 6 in practice */
2181 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2182
2183 /* The Country String field of the element shall be 3 octets in length */
2184 #define IEEE80211_COUNTRY_STRING_LEN    3
2185
2186 /*
2187  * For regulatory extension stuff see IEEE 802.11-2007
2188  * Annex I (page 1141) and Annex J (page 1147). Also
2189  * review 7.3.2.9.
2190  *
2191  * When dot11RegulatoryClassesRequired is true and the
2192  * first_channel/reg_extension_id is >= 201 then the IE
2193  * compromises of the 'ext' struct represented below:
2194  *
2195  *  - Regulatory extension ID - when generating IE this just needs
2196  *    to be monotonically increasing for each triplet passed in
2197  *    the IE
2198  *  - Regulatory class - index into set of rules
2199  *  - Coverage class - index into air propagation time (Table 7-27),
2200  *    in microseconds, you can compute the air propagation time from
2201  *    the index by multiplying by 3, so index 10 yields a propagation
2202  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2203  *    yet. A value of 0 inicates air propagation of <= 1 us.
2204  *
2205  *  See also Table I.2 for Emission limit sets and table
2206  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2207  *  a reg_class to an emission limit set and behavior limit set.
2208  */
2209 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2210
2211 /*
2212  *  Channels numbers in the IE must be monotonically increasing
2213  *  if dot11RegulatoryClassesRequired is not true.
2214  *
2215  *  If dot11RegulatoryClassesRequired is true consecutive
2216  *  subband triplets following a regulatory triplet shall
2217  *  have monotonically increasing first_channel number fields.
2218  *
2219  *  Channel numbers shall not overlap.
2220  *
2221  *  Note that max_power is signed.
2222  */
2223 struct ieee80211_country_ie_triplet {
2224         union {
2225                 struct {
2226                         u8 first_channel;
2227                         u8 num_channels;
2228                         s8 max_power;
2229                 } __packed chans;
2230                 struct {
2231                         u8 reg_extension_id;
2232                         u8 reg_class;
2233                         u8 coverage_class;
2234                 } __packed ext;
2235         };
2236 } __packed;
2237
2238 enum ieee80211_timeout_interval_type {
2239         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2240         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2241         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2242 };
2243
2244 /**
2245  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2246  * @type: type, see &enum ieee80211_timeout_interval_type
2247  * @value: timeout interval value
2248  */
2249 struct ieee80211_timeout_interval_ie {
2250         u8 type;
2251         __le32 value;
2252 } __packed;
2253
2254 /* BACK action code */
2255 enum ieee80211_back_actioncode {
2256         WLAN_ACTION_ADDBA_REQ = 0,
2257         WLAN_ACTION_ADDBA_RESP = 1,
2258         WLAN_ACTION_DELBA = 2,
2259 };
2260
2261 /* BACK (block-ack) parties */
2262 enum ieee80211_back_parties {
2263         WLAN_BACK_RECIPIENT = 0,
2264         WLAN_BACK_INITIATOR = 1,
2265 };
2266
2267 /* SA Query action */
2268 enum ieee80211_sa_query_action {
2269         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2270         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2271 };
2272
2273
2274 /* cipher suite selectors */
2275 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2276 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2277 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2278 /* reserved:                            0x000FAC03 */
2279 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2280 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2281 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2282 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2283 #define WLAN_CIPHER_SUITE_GCMP_256      0x000FAC09
2284 #define WLAN_CIPHER_SUITE_CCMP_256      0x000FAC0A
2285 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  0x000FAC0B
2286 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  0x000FAC0C
2287 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  0x000FAC0D
2288
2289 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2290
2291 /* AKM suite selectors */
2292 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2293 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2294 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
2295 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
2296 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
2297 #define WLAN_AKM_SUITE_SAE              0x000FAC08
2298 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2299
2300 #define WLAN_MAX_KEY_LEN                32
2301
2302 #define WLAN_PMKID_LEN                  16
2303
2304 #define WLAN_OUI_WFA                    0x506f9a
2305 #define WLAN_OUI_TYPE_WFA_P2P           9
2306 #define WLAN_OUI_MICROSOFT              0x0050f2
2307 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2308 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2309 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2310
2311 /*
2312  * WMM/802.11e Tspec Element
2313  */
2314 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2315 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2316
2317 enum ieee80211_tspec_status_code {
2318         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2319         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2320 };
2321
2322 struct ieee80211_tspec_ie {
2323         u8 element_id;
2324         u8 len;
2325         u8 oui[3];
2326         u8 oui_type;
2327         u8 oui_subtype;
2328         u8 version;
2329         __le16 tsinfo;
2330         u8 tsinfo_resvd;
2331         __le16 nominal_msdu;
2332         __le16 max_msdu;
2333         __le32 min_service_int;
2334         __le32 max_service_int;
2335         __le32 inactivity_int;
2336         __le32 suspension_int;
2337         __le32 service_start_time;
2338         __le32 min_data_rate;
2339         __le32 mean_data_rate;
2340         __le32 peak_data_rate;
2341         __le32 max_burst_size;
2342         __le32 delay_bound;
2343         __le32 min_phy_rate;
2344         __le16 sba;
2345         __le16 medium_time;
2346 } __packed;
2347
2348 /**
2349  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2350  * @hdr: the frame
2351  *
2352  * The qos ctrl bytes come after the frame_control, duration, seq_num
2353  * and 3 or 4 addresses of length ETH_ALEN.
2354  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2355  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2356  */
2357 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2358 {
2359         if (ieee80211_has_a4(hdr->frame_control))
2360                 return (u8 *)hdr + 30;
2361         else
2362                 return (u8 *)hdr + 24;
2363 }
2364
2365 /**
2366  * ieee80211_get_SA - get pointer to SA
2367  * @hdr: the frame
2368  *
2369  * Given an 802.11 frame, this function returns the offset
2370  * to the source address (SA). It does not verify that the
2371  * header is long enough to contain the address, and the
2372  * header must be long enough to contain the frame control
2373  * field.
2374  */
2375 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2376 {
2377         if (ieee80211_has_a4(hdr->frame_control))
2378                 return hdr->addr4;
2379         if (ieee80211_has_fromds(hdr->frame_control))
2380                 return hdr->addr3;
2381         return hdr->addr2;
2382 }
2383
2384 /**
2385  * ieee80211_get_DA - get pointer to DA
2386  * @hdr: the frame
2387  *
2388  * Given an 802.11 frame, this function returns the offset
2389  * to the destination address (DA). It does not verify that
2390  * the header is long enough to contain the address, and the
2391  * header must be long enough to contain the frame control
2392  * field.
2393  */
2394 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2395 {
2396         if (ieee80211_has_tods(hdr->frame_control))
2397                 return hdr->addr3;
2398         else
2399                 return hdr->addr1;
2400 }
2401
2402 /**
2403  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2404  * @hdr: the frame (buffer must include at least the first octet of payload)
2405  */
2406 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2407 {
2408         if (ieee80211_is_disassoc(hdr->frame_control) ||
2409             ieee80211_is_deauth(hdr->frame_control))
2410                 return true;
2411
2412         if (ieee80211_is_action(hdr->frame_control)) {
2413                 u8 *category;
2414
2415                 /*
2416                  * Action frames, excluding Public Action frames, are Robust
2417                  * Management Frames. However, if we are looking at a Protected
2418                  * frame, skip the check since the data may be encrypted and
2419                  * the frame has already been found to be a Robust Management
2420                  * Frame (by the other end).
2421                  */
2422                 if (ieee80211_has_protected(hdr->frame_control))
2423                         return true;
2424                 category = ((u8 *) hdr) + 24;
2425                 return *category != WLAN_CATEGORY_PUBLIC &&
2426                         *category != WLAN_CATEGORY_HT &&
2427                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
2428                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2429                         *category != WLAN_CATEGORY_UNPROT_DMG &&
2430                         *category != WLAN_CATEGORY_VHT &&
2431                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2432         }
2433
2434         return false;
2435 }
2436
2437 /**
2438  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
2439  * @skb: the skb containing the frame, length will be checked
2440  */
2441 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
2442 {
2443         if (skb->len < 25)
2444                 return false;
2445         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
2446 }
2447
2448 /**
2449  * ieee80211_is_public_action - check if frame is a public action frame
2450  * @hdr: the frame
2451  * @len: length of the frame
2452  */
2453 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2454                                               size_t len)
2455 {
2456         struct ieee80211_mgmt *mgmt = (void *)hdr;
2457
2458         if (len < IEEE80211_MIN_ACTION_SIZE)
2459                 return false;
2460         if (!ieee80211_is_action(hdr->frame_control))
2461                 return false;
2462         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2463 }
2464
2465 /**
2466  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2467  * @tu: the TUs
2468  */
2469 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2470 {
2471         return 1024 * tu;
2472 }
2473
2474 /**
2475  * ieee80211_check_tim - check if AID bit is set in TIM
2476  * @tim: the TIM IE
2477  * @tim_len: length of the TIM IE
2478  * @aid: the AID to look for
2479  */
2480 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2481                                        u8 tim_len, u16 aid)
2482 {
2483         u8 mask;
2484         u8 index, indexn1, indexn2;
2485
2486         if (unlikely(!tim || tim_len < sizeof(*tim)))
2487                 return false;
2488
2489         aid &= 0x3fff;
2490         index = aid / 8;
2491         mask  = 1 << (aid & 7);
2492
2493         indexn1 = tim->bitmap_ctrl & 0xfe;
2494         indexn2 = tim_len + indexn1 - 4;
2495
2496         if (index < indexn1 || index > indexn2)
2497                 return false;
2498
2499         index -= indexn1;
2500
2501         return !!(tim->virtual_map[index] & mask);
2502 }
2503
2504 /**
2505  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
2506  * @skb: the skb containing the frame, length will not be checked
2507  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
2508  *
2509  * This function assumes the frame is a data frame, and that the network header
2510  * is in the correct place.
2511  */
2512 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
2513 {
2514         if (!skb_is_nonlinear(skb) &&
2515             skb->len > (skb_network_offset(skb) + 2)) {
2516                 /* Point to where the indication of TDLS should start */
2517                 const u8 *tdls_data = skb_network_header(skb) - 2;
2518
2519                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
2520                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
2521                     tdls_data[3] == WLAN_CATEGORY_TDLS)
2522                         return tdls_data[4];
2523         }
2524
2525         return -1;
2526 }
2527
2528 /* convert time units */
2529 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
2530 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
2531
2532 /**
2533  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
2534  * @skb: the skb containing the frame, length will be checked
2535  *
2536  * This function checks if it's either TPC report action frame or Link
2537  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
2538  * and 8.5.7.5 accordingly.
2539  */
2540 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
2541 {
2542         struct ieee80211_mgmt *mgmt = (void *)skb->data;
2543
2544         if (!ieee80211_is_action(mgmt->frame_control))
2545                 return false;
2546
2547         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
2548                        sizeof(mgmt->u.action.u.tpc_report))
2549                 return false;
2550
2551         /*
2552          * TPC report - check that:
2553          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
2554          * spectrum management action = 3 (TPC/Link Measurement report)
2555          * TPC report EID = 35
2556          * TPC report element length = 2
2557          *
2558          * The spectrum management's tpc_report struct is used here both for
2559          * parsing tpc_report and radio measurement's link measurement report
2560          * frame, since the relevant part is identical in both frames.
2561          */
2562         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
2563             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
2564                 return false;
2565
2566         /* both spectrum mgmt and link measurement have same action code */
2567         if (mgmt->u.action.u.tpc_report.action_code !=
2568             WLAN_ACTION_SPCT_TPC_RPRT)
2569                 return false;
2570
2571         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
2572             mgmt->u.action.u.tpc_report.tpc_elem_length !=
2573             sizeof(struct ieee80211_tpc_report_ie))
2574                 return false;
2575
2576         return true;
2577 }
2578
2579 #endif /* LINUX_IEEE80211_H */