include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef LINUX_IEEE80211_H
  16 #define LINUX_IEEE80211_H
  17
  18 #include <linux/types.h>
  19 #include <asm/byteorder.h>
  20
  21 /*
  22  * DS bit usage
  23  *
  24  * TA = transmitter address
  25  * RA = receiver address
  26  * DA = destination address
  27  * SA = source address
  28  *
  29  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  30  * -----------------------------------------------------------------
  31  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  32  *  0       1       DA      BSSID   SA      -       AP -> STA
  33  *  1       0       BSSID   SA      DA      -       AP <- STA
  34  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  35  */
  36
  37 #define FCS_LEN 4
  38
  39 #define IEEE80211_FCTL_VERS             0x0003
  40 #define IEEE80211_FCTL_FTYPE            0x000c
  41 #define IEEE80211_FCTL_STYPE            0x00f0
  42 #define IEEE80211_FCTL_TODS             0x0100
  43 #define IEEE80211_FCTL_FROMDS           0x0200
  44 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  45 #define IEEE80211_FCTL_RETRY            0x0800
  46 #define IEEE80211_FCTL_PM               0x1000
  47 #define IEEE80211_FCTL_MOREDATA         0x2000
  48 #define IEEE80211_FCTL_PROTECTED        0x4000
  49 #define IEEE80211_FCTL_ORDER            0x8000
  50 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  51
  52 #define IEEE80211_SCTL_FRAG             0x000F
  53 #define IEEE80211_SCTL_SEQ              0xFFF0
  54
  55 #define IEEE80211_FTYPE_MGMT            0x0000
  56 #define IEEE80211_FTYPE_CTL             0x0004
  57 #define IEEE80211_FTYPE_DATA            0x0008
  58 #define IEEE80211_FTYPE_EXT             0x000c
  59
  60 /* management */
  61 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  62 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  63 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  64 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  65 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  66 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  67 #define IEEE80211_STYPE_BEACON          0x0080
  68 #define IEEE80211_STYPE_ATIM            0x0090
  69 #define IEEE80211_STYPE_DISASSOC        0x00A0
  70 #define IEEE80211_STYPE_AUTH            0x00B0
  71 #define IEEE80211_STYPE_DEAUTH          0x00C0
  72 #define IEEE80211_STYPE_ACTION          0x00D0
  73
  74 /* control */
  75 #define IEEE80211_STYPE_CTL_EXT         0x0060
  76 #define IEEE80211_STYPE_BACK_REQ        0x0080
  77 #define IEEE80211_STYPE_BACK            0x0090
  78 #define IEEE80211_STYPE_PSPOLL          0x00A0
  79 #define IEEE80211_STYPE_RTS             0x00B0
  80 #define IEEE80211_STYPE_CTS             0x00C0
  81 #define IEEE80211_STYPE_ACK             0x00D0
  82 #define IEEE80211_STYPE_CFEND           0x00E0
  83 #define IEEE80211_STYPE_CFENDACK        0x00F0
  84
  85 /* data */
  86 #define IEEE80211_STYPE_DATA                    0x0000
  87 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  88 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  89 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  90 #define IEEE80211_STYPE_NULLFUNC                0x0040
  91 #define IEEE80211_STYPE_CFACK                   0x0050
  92 #define IEEE80211_STYPE_CFPOLL                  0x0060
  93 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  94 #define IEEE80211_STYPE_QOS_DATA                0x0080
  95 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  96 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  97 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  98 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  99 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 100 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 101 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 102
 103 /* extension, added by 802.11ad */
 104 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 105
 106 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 107 #define IEEE80211_CTL_EXT_POLL          0x2000
 108 #define IEEE80211_CTL_EXT_SPR           0x3000
 109 #define IEEE80211_CTL_EXT_GRANT 0x4000
 110 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 111 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 112 #define IEEE80211_CTL_EXT_SSW           0x8000
 113 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 114 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 115
 116 /* miscellaneous IEEE 802.11 constants */
 117 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 118 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 119 #define IEEE80211_MAX_AID               2007
 120 #define IEEE80211_MAX_TIM_LEN           251
 121 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 122    6.2.1.1.2.
 123
 124    802.11e clarifies the figure in section 7.1.2. The frame body is
 125    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 126 #define IEEE80211_MAX_DATA_LEN          2304
 127 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 128 #define IEEE80211_MAX_FRAME_LEN         2352
 129
 130 #define IEEE80211_MAX_SSID_LEN          32
 131
 132 #define IEEE80211_MAX_MESH_ID_LEN       32
 133
 134 #define IEEE80211_NUM_TIDS              16
 135
 136 #define IEEE80211_QOS_CTL_LEN           2
 137 /* 1d tag mask */
 138 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 139 /* TID mask */
 140 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 141 /* EOSP */
 142 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 143 /* ACK policy */
 144 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 145 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 146 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 147 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 148 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 149 /* A-MSDU 802.11n */
 150 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 151 /* Mesh Control 802.11s */
 152 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 153
 154 /* Mesh Power Save Level */
 155 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 156 /* Mesh Receiver Service Period Initiated */
 157 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 158
 159 /* U-APSD queue for WMM IEs sent by AP */
 160 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 161 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 162
 163 /* U-APSD queues for WMM IEs sent by STA */
 164 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 165 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 166 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 167 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 168 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 169
 170 /* U-APSD max SP length for WMM IEs sent by STA */
 171 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 172 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 173 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 174 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 175 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 176 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 177
 178 #define IEEE80211_HT_CTL_LEN            4
 179
 180 struct ieee80211_hdr {
 181         __le16 frame_control;
 182         __le16 duration_id;
 183         u8 addr1[6];
 184         u8 addr2[6];
 185         u8 addr3[6];
 186         __le16 seq_ctrl;
 187         u8 addr4[6];
 188 } __packed;
 189
 190 struct ieee80211_hdr_3addr {
 191         __le16 frame_control;
 192         __le16 duration_id;
 193         u8 addr1[6];
 194         u8 addr2[6];
 195         u8 addr3[6];
 196         __le16 seq_ctrl;
 197 } __packed;
 198
 199 struct ieee80211_qos_hdr {
 200         __le16 frame_control;
 201         __le16 duration_id;
 202         u8 addr1[6];
 203         u8 addr2[6];
 204         u8 addr3[6];
 205         __le16 seq_ctrl;
 206         __le16 qos_ctrl;
 207 } __packed;
 208
 209 /**
 210  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 211  * @fc: frame control bytes in little-endian byteorder
 212  */
 213 static inline int ieee80211_has_tods(__le16 fc)
 214 {
 215         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 216 }
 217
 218 /**
 219  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 220  * @fc: frame control bytes in little-endian byteorder
 221  */
 222 static inline int ieee80211_has_fromds(__le16 fc)
 223 {
 224         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 225 }
 226
 227 /**
 228  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 229  * @fc: frame control bytes in little-endian byteorder
 230  */
 231 static inline int ieee80211_has_a4(__le16 fc)
 232 {
 233         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 234         return (fc & tmp) == tmp;
 235 }
 236
 237 /**
 238  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 239  * @fc: frame control bytes in little-endian byteorder
 240  */
 241 static inline int ieee80211_has_morefrags(__le16 fc)
 242 {
 243         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 244 }
 245
 246 /**
 247  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 248  * @fc: frame control bytes in little-endian byteorder
 249  */
 250 static inline int ieee80211_has_retry(__le16 fc)
 251 {
 252         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 253 }
 254
 255 /**
 256  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 257  * @fc: frame control bytes in little-endian byteorder
 258  */
 259 static inline int ieee80211_has_pm(__le16 fc)
 260 {
 261         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 262 }
 263
 264 /**
 265  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 266  * @fc: frame control bytes in little-endian byteorder
 267  */
 268 static inline int ieee80211_has_moredata(__le16 fc)
 269 {
 270         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 271 }
 272
 273 /**
 274  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 275  * @fc: frame control bytes in little-endian byteorder
 276  */
 277 static inline int ieee80211_has_protected(__le16 fc)
 278 {
 279         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 280 }
 281
 282 /**
 283  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 284  * @fc: frame control bytes in little-endian byteorder
 285  */
 286 static inline int ieee80211_has_order(__le16 fc)
 287 {
 288         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 289 }
 290
 291 /**
 292  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 293  * @fc: frame control bytes in little-endian byteorder
 294  */
 295 static inline int ieee80211_is_mgmt(__le16 fc)
 296 {
 297         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 298                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 299 }
 300
 301 /**
 302  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 303  * @fc: frame control bytes in little-endian byteorder
 304  */
 305 static inline int ieee80211_is_ctl(__le16 fc)
 306 {
 307         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 308                cpu_to_le16(IEEE80211_FTYPE_CTL);
 309 }
 310
 311 /**
 312  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 313  * @fc: frame control bytes in little-endian byteorder
 314  */
 315 static inline int ieee80211_is_data(__le16 fc)
 316 {
 317         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 318                cpu_to_le16(IEEE80211_FTYPE_DATA);
 319 }
 320
 321 /**
 322  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 323  * @fc: frame control bytes in little-endian byteorder
 324  */
 325 static inline int ieee80211_is_data_qos(__le16 fc)
 326 {
 327         /*
 328          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 329          * to check the one bit
 330          */
 331         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 332                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 333 }
 334
 335 /**
 336  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 337  * @fc: frame control bytes in little-endian byteorder
 338  */
 339 static inline int ieee80211_is_data_present(__le16 fc)
 340 {
 341         /*
 342          * mask with 0x40 and test that that bit is clear to only return true
 343          * for the data-containing substypes.
 344          */
 345         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 346                cpu_to_le16(IEEE80211_FTYPE_DATA);
 347 }
 348
 349 /**
 350  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 351  * @fc: frame control bytes in little-endian byteorder
 352  */
 353 static inline int ieee80211_is_assoc_req(__le16 fc)
 354 {
 355         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 356                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 357 }
 358
 359 /**
 360  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 361  * @fc: frame control bytes in little-endian byteorder
 362  */
 363 static inline int ieee80211_is_assoc_resp(__le16 fc)
 364 {
 365         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 366                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 367 }
 368
 369 /**
 370  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 371  * @fc: frame control bytes in little-endian byteorder
 372  */
 373 static inline int ieee80211_is_reassoc_req(__le16 fc)
 374 {
 375         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 376                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 377 }
 378
 379 /**
 380  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 381  * @fc: frame control bytes in little-endian byteorder
 382  */
 383 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 384 {
 385         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 386                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 387 }
 388
 389 /**
 390  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 391  * @fc: frame control bytes in little-endian byteorder
 392  */
 393 static inline int ieee80211_is_probe_req(__le16 fc)
 394 {
 395         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 396                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 397 }
 398
 399 /**
 400  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 401  * @fc: frame control bytes in little-endian byteorder
 402  */
 403 static inline int ieee80211_is_probe_resp(__le16 fc)
 404 {
 405         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 406                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 407 }
 408
 409 /**
 410  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 411  * @fc: frame control bytes in little-endian byteorder
 412  */
 413 static inline int ieee80211_is_beacon(__le16 fc)
 414 {
 415         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 416                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 417 }
 418
 419 /**
 420  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 421  * @fc: frame control bytes in little-endian byteorder
 422  */
 423 static inline int ieee80211_is_atim(__le16 fc)
 424 {
 425         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 426                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 427 }
 428
 429 /**
 430  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 431  * @fc: frame control bytes in little-endian byteorder
 432  */
 433 static inline int ieee80211_is_disassoc(__le16 fc)
 434 {
 435         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 436                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 437 }
 438
 439 /**
 440  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 441  * @fc: frame control bytes in little-endian byteorder
 442  */
 443 static inline int ieee80211_is_auth(__le16 fc)
 444 {
 445         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 446                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 447 }
 448
 449 /**
 450  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 451  * @fc: frame control bytes in little-endian byteorder
 452  */
 453 static inline int ieee80211_is_deauth(__le16 fc)
 454 {
 455         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 456                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 457 }
 458
 459 /**
 460  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 461  * @fc: frame control bytes in little-endian byteorder
 462  */
 463 static inline int ieee80211_is_action(__le16 fc)
 464 {
 465         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 466                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 467 }
 468
 469 /**
 470  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 471  * @fc: frame control bytes in little-endian byteorder
 472  */
 473 static inline int ieee80211_is_back_req(__le16 fc)
 474 {
 475         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 476                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 477 }
 478
 479 /**
 480  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 481  * @fc: frame control bytes in little-endian byteorder
 482  */
 483 static inline int ieee80211_is_back(__le16 fc)
 484 {
 485         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 486                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 487 }
 488
 489 /**
 490  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 491  * @fc: frame control bytes in little-endian byteorder
 492  */
 493 static inline int ieee80211_is_pspoll(__le16 fc)
 494 {
 495         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 496                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 497 }
 498
 499 /**
 500  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 501  * @fc: frame control bytes in little-endian byteorder
 502  */
 503 static inline int ieee80211_is_rts(__le16 fc)
 504 {
 505         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 506                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 507 }
 508
 509 /**
 510  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 511  * @fc: frame control bytes in little-endian byteorder
 512  */
 513 static inline int ieee80211_is_cts(__le16 fc)
 514 {
 515         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 516                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 517 }
 518
 519 /**
 520  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 521  * @fc: frame control bytes in little-endian byteorder
 522  */
 523 static inline int ieee80211_is_ack(__le16 fc)
 524 {
 525         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 526                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 527 }
 528
 529 /**
 530  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 531  * @fc: frame control bytes in little-endian byteorder
 532  */
 533 static inline int ieee80211_is_cfend(__le16 fc)
 534 {
 535         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 536                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 537 }
 538
 539 /**
 540  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 541  * @fc: frame control bytes in little-endian byteorder
 542  */
 543 static inline int ieee80211_is_cfendack(__le16 fc)
 544 {
 545         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 546                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 547 }
 548
 549 /**
 550  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 551  * @fc: frame control bytes in little-endian byteorder
 552  */
 553 static inline int ieee80211_is_nullfunc(__le16 fc)
 554 {
 555         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 556                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 557 }
 558
 559 /**
 560  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 561  * @fc: frame control bytes in little-endian byteorder
 562  */
 563 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 564 {
 565         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 566                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 567 }
 568
 569 /**
 570  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 571  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 572  */
 573 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 574 {
 575         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 576 }
 577
 578 struct ieee80211s_hdr {
 579         u8 flags;
 580         u8 ttl;
 581         __le32 seqnum;
 582         u8 eaddr1[6];
 583         u8 eaddr2[6];
 584 } __packed;
 585
 586 /* Mesh flags */
 587 #define MESH_FLAGS_AE_A4        0x1
 588 #define MESH_FLAGS_AE_A5_A6     0x2
 589 #define MESH_FLAGS_AE           0x3
 590 #define MESH_FLAGS_PS_DEEP      0x4
 591
 592 /**
 593  * enum ieee80211_preq_flags - mesh PREQ element flags
 594  *
 595  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 596  */
 597 enum ieee80211_preq_flags {
 598         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 599 };
 600
 601 /**
 602  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 603  *
 604  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 605  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 606  */
 607 enum ieee80211_preq_target_flags {
 608         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 609         IEEE80211_PREQ_USN_FLAG = 1<<2,
 610 };
 611
 612 /**
 613  * struct ieee80211_quiet_ie
 614  *
 615  * This structure refers to "Quiet information element"
 616  */
 617 struct ieee80211_quiet_ie {
 618         u8 count;
 619         u8 period;
 620         __le16 duration;
 621         __le16 offset;
 622 } __packed;
 623
 624 /**
 625  * struct ieee80211_msrment_ie
 626  *
 627  * This structure refers to "Measurement Request/Report information element"
 628  */
 629 struct ieee80211_msrment_ie {
 630         u8 token;
 631         u8 mode;
 632         u8 type;
 633         u8 request[0];
 634 } __packed;
 635
 636 /**
 637  * struct ieee80211_channel_sw_ie
 638  *
 639  * This structure refers to "Channel Switch Announcement information element"
 640  */
 641 struct ieee80211_channel_sw_ie {
 642         u8 mode;
 643         u8 new_ch_num;
 644         u8 count;
 645 } __packed;
 646
 647 /**
 648  * struct ieee80211_tim
 649  *
 650  * This structure refers to "Traffic Indication Map information element"
 651  */
 652 struct ieee80211_tim_ie {
 653         u8 dtim_count;
 654         u8 dtim_period;
 655         u8 bitmap_ctrl;
 656         /* variable size: 1 - 251 bytes */
 657         u8 virtual_map[1];
 658 } __packed;
 659
 660 /**
 661  * struct ieee80211_meshconf_ie
 662  *
 663  * This structure refers to "Mesh Configuration information element"
 664  */
 665 struct ieee80211_meshconf_ie {
 666         u8 meshconf_psel;
 667         u8 meshconf_pmetric;
 668         u8 meshconf_congest;
 669         u8 meshconf_synch;
 670         u8 meshconf_auth;
 671         u8 meshconf_form;
 672         u8 meshconf_cap;
 673 } __packed;
 674
 675 /**
 676  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 677  *
 678  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 679  *      additional mesh peerings with other mesh STAs
 680  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 681  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 682  *      is ongoing
 683  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 684  *      neighbors in deep sleep mode
 685  */
 686 enum mesh_config_capab_flags {
 687         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 688         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 689         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 690         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 691 };
 692
 693 /**
 694  * struct ieee80211_rann_ie
 695  *
 696  * This structure refers to "Root Announcement information element"
 697  */
 698 struct ieee80211_rann_ie {
 699         u8 rann_flags;
 700         u8 rann_hopcount;
 701         u8 rann_ttl;
 702         u8 rann_addr[6];
 703         __le32 rann_seq;
 704         __le32 rann_interval;
 705         __le32 rann_metric;
 706 } __packed;
 707
 708 enum ieee80211_rann_flags {
 709         RANN_FLAG_IS_GATE = 1 << 0,
 710 };
 711
 712 enum ieee80211_ht_chanwidth_values {
 713         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 714         IEEE80211_HT_CHANWIDTH_ANY = 1,
 715 };
 716
 717 /**
 718  * enum ieee80211_opmode_bits - VHT operating mode field bits
 719  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 720  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 721  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 722  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 723  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 724  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 725  *      (the NSS value is the value of this field + 1)
 726  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 727  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 728  *      using a beamforming steering matrix
 729  */
 730 enum ieee80211_vht_opmode_bits {
 731         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 732         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 733         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 734         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 735         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 736         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 737         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 738         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 739 };
 740
 741 #define WLAN_SA_QUERY_TR_ID_LEN 2
 742
 743 struct ieee80211_mgmt {
 744         __le16 frame_control;
 745         __le16 duration;
 746         u8 da[6];
 747         u8 sa[6];
 748         u8 bssid[6];
 749         __le16 seq_ctrl;
 750         union {
 751                 struct {
 752                         __le16 auth_alg;
 753                         __le16 auth_transaction;
 754                         __le16 status_code;
 755                         /* possibly followed by Challenge text */
 756                         u8 variable[0];
 757                 } __packed auth;
 758                 struct {
 759                         __le16 reason_code;
 760                 } __packed deauth;
 761                 struct {
 762                         __le16 capab_info;
 763                         __le16 listen_interval;
 764                         /* followed by SSID and Supported rates */
 765                         u8 variable[0];
 766                 } __packed assoc_req;
 767                 struct {
 768                         __le16 capab_info;
 769                         __le16 status_code;
 770                         __le16 aid;
 771                         /* followed by Supported rates */
 772                         u8 variable[0];
 773                 } __packed assoc_resp, reassoc_resp;
 774                 struct {
 775                         __le16 capab_info;
 776                         __le16 listen_interval;
 777                         u8 current_ap[6];
 778                         /* followed by SSID and Supported rates */
 779                         u8 variable[0];
 780                 } __packed reassoc_req;
 781                 struct {
 782                         __le16 reason_code;
 783                 } __packed disassoc;
 784                 struct {
 785                         __le64 timestamp;
 786                         __le16 beacon_int;
 787                         __le16 capab_info;
 788                         /* followed by some of SSID, Supported rates,
 789                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 790                         u8 variable[0];
 791                 } __packed beacon;
 792                 struct {
 793                         /* only variable items: SSID, Supported rates */
 794                         u8 variable[0];
 795                 } __packed probe_req;
 796                 struct {
 797                         __le64 timestamp;
 798                         __le16 beacon_int;
 799                         __le16 capab_info;
 800                         /* followed by some of SSID, Supported rates,
 801                          * FH Params, DS Params, CF Params, IBSS Params */
 802                         u8 variable[0];
 803                 } __packed probe_resp;
 804                 struct {
 805                         u8 category;
 806                         union {
 807                                 struct {
 808                                         u8 action_code;
 809                                         u8 dialog_token;
 810                                         u8 status_code;
 811                                         u8 variable[0];
 812                                 } __packed wme_action;
 813                                 struct{
 814                                         u8 action_code;
 815                                         u8 element_id;
 816                                         u8 length;
 817                                         struct ieee80211_channel_sw_ie sw_elem;
 818                                 } __packed chan_switch;
 819                                 struct{
 820                                         u8 action_code;
 821                                         u8 dialog_token;
 822                                         u8 element_id;
 823                                         u8 length;
 824                                         struct ieee80211_msrment_ie msr_elem;
 825                                 } __packed measurement;
 826                                 struct{
 827                                         u8 action_code;
 828                                         u8 dialog_token;
 829                                         __le16 capab;
 830                                         __le16 timeout;
 831                                         __le16 start_seq_num;
 832                                 } __packed addba_req;
 833                                 struct{
 834                                         u8 action_code;
 835                                         u8 dialog_token;
 836                                         __le16 status;
 837                                         __le16 capab;
 838                                         __le16 timeout;
 839                                 } __packed addba_resp;
 840                                 struct{
 841                                         u8 action_code;
 842                                         __le16 params;
 843                                         __le16 reason_code;
 844                                 } __packed delba;
 845                                 struct {
 846                                         u8 action_code;
 847                                         u8 variable[0];
 848                                 } __packed self_prot;
 849                                 struct{
 850                                         u8 action_code;
 851                                         u8 variable[0];
 852                                 } __packed mesh_action;
 853                                 struct {
 854                                         u8 action;
 855                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 856                                 } __packed sa_query;
 857                                 struct {
 858                                         u8 action;
 859                                         u8 smps_control;
 860                                 } __packed ht_smps;
 861                                 struct {
 862                                         u8 action_code;
 863                                         u8 chanwidth;
 864                                 } __packed ht_notify_cw;
 865                                 struct {
 866                                         u8 action_code;
 867                                         u8 dialog_token;
 868                                         __le16 capability;
 869                                         u8 variable[0];
 870                                 } __packed tdls_discover_resp;
 871                                 struct {
 872                                         u8 action_code;
 873                                         u8 operating_mode;
 874                                 } __packed vht_opmode_notif;
 875                         } u;
 876                 } __packed action;
 877         } u;
 878 } __packed;
 879
 880 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 881 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 882
 883 /* mgmt header + 1 byte category code */
 884 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 885
 886
 887 /* Management MIC information element (IEEE 802.11w) */
 888 struct ieee80211_mmie {
 889         u8 element_id;
 890         u8 length;
 891         __le16 key_id;
 892         u8 sequence_number[6];
 893         u8 mic[8];
 894 } __packed;
 895
 896 struct ieee80211_vendor_ie {
 897         u8 element_id;
 898         u8 len;
 899         u8 oui[3];
 900         u8 oui_type;
 901 } __packed;
 902
 903 /* Control frames */
 904 struct ieee80211_rts {
 905         __le16 frame_control;
 906         __le16 duration;
 907         u8 ra[6];
 908         u8 ta[6];
 909 } __packed;
 910
 911 struct ieee80211_cts {
 912         __le16 frame_control;
 913         __le16 duration;
 914         u8 ra[6];
 915 } __packed;
 916
 917 struct ieee80211_pspoll {
 918         __le16 frame_control;
 919         __le16 aid;
 920         u8 bssid[6];
 921         u8 ta[6];
 922 } __packed;
 923
 924 /* TDLS */
 925
 926 /* Link-id information element */
 927 struct ieee80211_tdls_lnkie {
 928         u8 ie_type; /* Link Identifier IE */
 929         u8 ie_len;
 930         u8 bssid[6];
 931         u8 init_sta[6];
 932         u8 resp_sta[6];
 933 } __packed;
 934
 935 struct ieee80211_tdls_data {
 936         u8 da[6];
 937         u8 sa[6];
 938         __be16 ether_type;
 939         u8 payload_type;
 940         u8 category;
 941         u8 action_code;
 942         union {
 943                 struct {
 944                         u8 dialog_token;
 945                         __le16 capability;
 946                         u8 variable[0];
 947                 } __packed setup_req;
 948                 struct {
 949                         __le16 status_code;
 950                         u8 dialog_token;
 951                         __le16 capability;
 952                         u8 variable[0];
 953                 } __packed setup_resp;
 954                 struct {
 955                         __le16 status_code;
 956                         u8 dialog_token;
 957                         u8 variable[0];
 958                 } __packed setup_cfm;
 959                 struct {
 960                         __le16 reason_code;
 961                         u8 variable[0];
 962                 } __packed teardown;
 963                 struct {
 964                         u8 dialog_token;
 965                         u8 variable[0];
 966                 } __packed discover_req;
 967         } u;
 968 } __packed;
 969
 970 /*
 971  * Peer-to-Peer IE attribute related definitions.
 972  */
 973 /**
 974  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
 975  */
 976 enum ieee80211_p2p_attr_id {
 977         IEEE80211_P2P_ATTR_STATUS = 0,
 978         IEEE80211_P2P_ATTR_MINOR_REASON,
 979         IEEE80211_P2P_ATTR_CAPABILITY,
 980         IEEE80211_P2P_ATTR_DEVICE_ID,
 981         IEEE80211_P2P_ATTR_GO_INTENT,
 982         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
 983         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
 984         IEEE80211_P2P_ATTR_GROUP_BSSID,
 985         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
 986         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
 987         IEEE80211_P2P_ATTR_MANAGABILITY,
 988         IEEE80211_P2P_ATTR_CHANNEL_LIST,
 989         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
 990         IEEE80211_P2P_ATTR_DEVICE_INFO,
 991         IEEE80211_P2P_ATTR_GROUP_INFO,
 992         IEEE80211_P2P_ATTR_GROUP_ID,
 993         IEEE80211_P2P_ATTR_INTERFACE,
 994         IEEE80211_P2P_ATTR_OPER_CHANNEL,
 995         IEEE80211_P2P_ATTR_INVITE_FLAGS,
 996         /* 19 - 220: Reserved */
 997         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
 998
 999         IEEE80211_P2P_ATTR_MAX
1000 };
1001
1002 /**
1003  * struct ieee80211_bar - HT Block Ack Request
1004  *
1005  * This structure refers to "HT BlockAckReq" as
1006  * described in 802.11n draft section 7.2.1.7.1
1007  */
1008 struct ieee80211_bar {
1009         __le16 frame_control;
1010         __le16 duration;
1011         __u8 ra[6];
1012         __u8 ta[6];
1013         __le16 control;
1014         __le16 start_seq_num;
1015 } __packed;
1016
1017 /* 802.11 BAR control masks */
1018 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1019 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1020 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1021 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1022 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1023
1024 #define IEEE80211_HT_MCS_MASK_LEN               10
1025
1026 /**
1027  * struct ieee80211_mcs_info - MCS information
1028  * @rx_mask: RX mask
1029  * @rx_highest: highest supported RX rate. If set represents
1030  *      the highest supported RX data rate in units of 1 Mbps.
1031  *      If this field is 0 this value should not be used to
1032  *      consider the highest RX data rate supported.
1033  * @tx_params: TX parameters
1034  */
1035 struct ieee80211_mcs_info {
1036         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1037         __le16 rx_highest;
1038         u8 tx_params;
1039         u8 reserved[3];
1040 } __packed;
1041
1042 /* 802.11n HT capability MSC set */
1043 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1044 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1045 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1046 /* value 0 == 1 stream etc */
1047 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1048 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1049 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1050 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1051
1052 /*
1053  * 802.11n D5.0 20.3.5 / 20.6 says:
1054  * - indices 0 to 7 and 32 are single spatial stream
1055  * - 8 to 31 are multiple spatial streams using equal modulation
1056  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1057  * - remainder are multiple spatial streams using unequal modulation
1058  */
1059 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1060 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1061         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1062
1063 /**
1064  * struct ieee80211_ht_cap - HT capabilities
1065  *
1066  * This structure is the "HT capabilities element" as
1067  * described in 802.11n D5.0 7.3.2.57
1068  */
1069 struct ieee80211_ht_cap {
1070         __le16 cap_info;
1071         u8 ampdu_params_info;
1072
1073         /* 16 bytes MCS information */
1074         struct ieee80211_mcs_info mcs;
1075
1076         __le16 extended_ht_cap_info;
1077         __le32 tx_BF_cap_info;
1078         u8 antenna_selection_info;
1079 } __packed;
1080
1081 /* 802.11n HT capabilities masks (for cap_info) */
1082 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1083 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1084 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1085 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1086 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1087 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1088 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1089 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1090 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1091 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1092 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1093 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1094 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1095 #define IEEE80211_HT_CAP_RESERVED               0x2000
1096 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1097 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1098
1099 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1100 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1101 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1102 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1103 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1104 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1105 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1106 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1107
1108 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1109 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1110 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1111 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1112
1113 /*
1114  * Maximum length of AMPDU that the STA can receive.
1115  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1116  */
1117 enum ieee80211_max_ampdu_length_exp {
1118         IEEE80211_HT_MAX_AMPDU_8K = 0,
1119         IEEE80211_HT_MAX_AMPDU_16K = 1,
1120         IEEE80211_HT_MAX_AMPDU_32K = 2,
1121         IEEE80211_HT_MAX_AMPDU_64K = 3
1122 };
1123
1124 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1125
1126 /* Minimum MPDU start spacing */
1127 enum ieee80211_min_mpdu_spacing {
1128         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1129         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1130         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1131         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1132         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1133         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1134         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1135         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1136 };
1137
1138 /**
1139  * struct ieee80211_ht_operation - HT operation IE
1140  *
1141  * This structure is the "HT operation element" as
1142  * described in 802.11n-2009 7.3.2.57
1143  */
1144 struct ieee80211_ht_operation {
1145         u8 primary_chan;
1146         u8 ht_param;
1147         __le16 operation_mode;
1148         __le16 stbc_param;
1149         u8 basic_set[16];
1150 } __packed;
1151
1152 /* for ht_param */
1153 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1154 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1155 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1156 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1157 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1158 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1159
1160 /* for operation_mode */
1161 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1162 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1163 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1164 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1165 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1166 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1167 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1168
1169 /* for stbc_param */
1170 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1171 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1172 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1173 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1174 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1175 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1176
1177
1178 /* block-ack parameters */
1179 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1180 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1181 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1182 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1183 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1184
1185 /*
1186  * A-PMDU buffer sizes
1187  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1188  */
1189 #define IEEE80211_MIN_AMPDU_BUF 0x8
1190 #define IEEE80211_MAX_AMPDU_BUF 0x40
1191
1192
1193 /* Spatial Multiplexing Power Save Modes (for capability) */
1194 #define WLAN_HT_CAP_SM_PS_STATIC        0
1195 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1196 #define WLAN_HT_CAP_SM_PS_INVALID       2
1197 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1198
1199 /* for SM power control field lower two bits */
1200 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1201 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1202 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1203
1204 /**
1205  * struct ieee80211_vht_mcs_info - VHT MCS information
1206  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1207  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1208  *      STA can receive. Rate expressed in units of 1 Mbps.
1209  *      If this field is 0 this value should not be used to
1210  *      consider the highest RX data rate supported.
1211  *      The top 3 bits of this field are reserved.
1212  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1213  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1214  *      STA can transmit. Rate expressed in units of 1 Mbps.
1215  *      If this field is 0 this value should not be used to
1216  *      consider the highest TX data rate supported.
1217  *      The top 3 bits of this field are reserved.
1218  */
1219 struct ieee80211_vht_mcs_info {
1220         __le16 rx_mcs_map;
1221         __le16 rx_highest;
1222         __le16 tx_mcs_map;
1223         __le16 tx_highest;
1224 } __packed;
1225
1226 /**
1227  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1228  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1229  *      number of streams
1230  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1231  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1232  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1233  *
1234  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1235  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1236  * both split into 8 subfields by number of streams. These values indicate
1237  * which MCSes are supported for the number of streams the value appears
1238  * for.
1239  */
1240 enum ieee80211_vht_mcs_support {
1241         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1242         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1243         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1244         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1245 };
1246
1247 /**
1248  * struct ieee80211_vht_cap - VHT capabilities
1249  *
1250  * This structure is the "VHT capabilities element" as
1251  * described in 802.11ac D3.0 8.4.2.160
1252  * @vht_cap_info: VHT capability info
1253  * @supp_mcs: VHT MCS supported rates
1254  */
1255 struct ieee80211_vht_cap {
1256         __le32 vht_cap_info;
1257         struct ieee80211_vht_mcs_info supp_mcs;
1258 } __packed;
1259
1260 /**
1261  * enum ieee80211_vht_chanwidth - VHT channel width
1262  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1263  *      determine the channel width (20 or 40 MHz)
1264  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1265  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1266  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1267  */
1268 enum ieee80211_vht_chanwidth {
1269         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1270         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1271         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1272         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1273 };
1274
1275 /**
1276  * struct ieee80211_vht_operation - VHT operation IE
1277  *
1278  * This structure is the "VHT operation element" as
1279  * described in 802.11ac D3.0 8.4.2.161
1280  * @chan_width: Operating channel width
1281  * @center_freq_seg1_idx: center freq segment 1 index
1282  * @center_freq_seg2_idx: center freq segment 2 index
1283  * @basic_mcs_set: VHT Basic MCS rate set
1284  */
1285 struct ieee80211_vht_operation {
1286         u8 chan_width;
1287         u8 center_freq_seg1_idx;
1288         u8 center_freq_seg2_idx;
1289         __le16 basic_mcs_set;
1290 } __packed;
1291
1292
1293 #define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
1294 #define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
1295 #define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
1296 #define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
1297
1298 /* 802.11ac VHT Capabilities */
1299 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1300 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1301 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1302 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1303 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1304 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1305 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1306 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1307 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1308 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1309 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1310 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1311 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1312 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1313 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1314 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1315 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX               0x00006000
1316 #define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX                0x00030000
1317 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1318 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1319 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1320 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1321 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1322 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1323                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1324 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1325 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1326 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1327 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1328
1329 /* Authentication algorithms */
1330 #define WLAN_AUTH_OPEN 0
1331 #define WLAN_AUTH_SHARED_KEY 1
1332 #define WLAN_AUTH_FT 2
1333 #define WLAN_AUTH_SAE 3
1334 #define WLAN_AUTH_LEAP 128
1335
1336 #define WLAN_AUTH_CHALLENGE_LEN 128
1337
1338 #define WLAN_CAPABILITY_ESS             (1<<0)
1339 #define WLAN_CAPABILITY_IBSS            (1<<1)
1340
1341 /*
1342  * A mesh STA sets the ESS and IBSS capability bits to zero.
1343  * however, this holds true for p2p probe responses (in the p2p_find
1344  * phase) as well.
1345  */
1346 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1347         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1348
1349 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1350 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1351 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1352 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1353 #define WLAN_CAPABILITY_PBCC            (1<<6)
1354 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1355
1356 /* 802.11h */
1357 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1358 #define WLAN_CAPABILITY_QOS             (1<<9)
1359 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1360 #define WLAN_CAPABILITY_APSD            (1<<11)
1361 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1362 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1363 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1364 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1365
1366 /* DMG (60gHz) 802.11ad */
1367 /* type - bits 0..1 */
1368 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1369 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1370 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1371 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1372
1373 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1374 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1375 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1376 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1377
1378 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1379 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1380
1381 /* measurement */
1382 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1383 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1384 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1385
1386 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1387 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1388 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1389
1390 /* 802.11g ERP information element */
1391 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1392 #define WLAN_ERP_USE_PROTECTION (1<<1)
1393 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1394
1395 /* WLAN_ERP_BARKER_PREAMBLE values */
1396 enum {
1397         WLAN_ERP_PREAMBLE_SHORT = 0,
1398         WLAN_ERP_PREAMBLE_LONG = 1,
1399 };
1400
1401 /* Band ID, 802.11ad #8.4.1.45 */
1402 enum {
1403         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1404         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1405         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1406         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1407         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1408         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1409 };
1410
1411 /* Status codes */
1412 enum ieee80211_statuscode {
1413         WLAN_STATUS_SUCCESS = 0,
1414         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1415         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1416         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1417         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1418         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1419         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1420         WLAN_STATUS_CHALLENGE_FAIL = 15,
1421         WLAN_STATUS_AUTH_TIMEOUT = 16,
1422         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1423         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1424         /* 802.11b */
1425         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1426         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1427         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1428         /* 802.11h */
1429         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1430         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1431         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1432         /* 802.11g */
1433         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1434         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1435         /* 802.11w */
1436         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1437         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1438         /* 802.11i */
1439         WLAN_STATUS_INVALID_IE = 40,
1440         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1441         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1442         WLAN_STATUS_INVALID_AKMP = 43,
1443         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1444         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1445         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1446         /* 802.11e */
1447         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1448         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1449         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1450         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1451         WLAN_STATUS_REQUEST_DECLINED = 37,
1452         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1453         WLAN_STATUS_CHANGE_TSPEC = 39,
1454         WLAN_STATUS_WAIT_TS_DELAY = 47,
1455         WLAN_STATUS_NO_DIRECT_LINK = 48,
1456         WLAN_STATUS_STA_NOT_PRESENT = 49,
1457         WLAN_STATUS_STA_NOT_QSTA = 50,
1458         /* 802.11s */
1459         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1460         WLAN_STATUS_FCG_NOT_SUPP = 78,
1461         WLAN_STATUS_STA_NO_TBTT = 78,
1462         /* 802.11ad */
1463         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1464         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1465         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1466         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1467         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1468         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1469         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1470         WLAN_STATUS_REJECT_DSE_BAND = 96,
1471         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1472         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1473 };
1474
1475
1476 /* Reason codes */
1477 enum ieee80211_reasoncode {
1478         WLAN_REASON_UNSPECIFIED = 1,
1479         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1480         WLAN_REASON_DEAUTH_LEAVING = 3,
1481         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1482         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1483         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1484         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1485         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1486         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1487         /* 802.11h */
1488         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1489         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1490         /* 802.11i */
1491         WLAN_REASON_INVALID_IE = 13,
1492         WLAN_REASON_MIC_FAILURE = 14,
1493         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1494         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1495         WLAN_REASON_IE_DIFFERENT = 17,
1496         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1497         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1498         WLAN_REASON_INVALID_AKMP = 20,
1499         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1500         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1501         WLAN_REASON_IEEE8021X_FAILED = 23,
1502         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1503         /* 802.11e */
1504         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1505         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1506         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1507         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1508         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1509         WLAN_REASON_QSTA_NOT_USE = 37,
1510         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1511         WLAN_REASON_QSTA_TIMEOUT = 39,
1512         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1513         /* 802.11s */
1514         WLAN_REASON_MESH_PEER_CANCELED = 52,
1515         WLAN_REASON_MESH_MAX_PEERS = 53,
1516         WLAN_REASON_MESH_CONFIG = 54,
1517         WLAN_REASON_MESH_CLOSE = 55,
1518         WLAN_REASON_MESH_MAX_RETRIES = 56,
1519         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1520         WLAN_REASON_MESH_INVALID_GTK = 58,
1521         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1522         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1523         WLAN_REASON_MESH_PATH_ERROR = 61,
1524         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1525         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1526         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1527         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1528         WLAN_REASON_MESH_CHAN = 66,
1529 };
1530
1531
1532 /* Information Element IDs */
1533 enum ieee80211_eid {
1534         WLAN_EID_SSID = 0,
1535         WLAN_EID_SUPP_RATES = 1,
1536         WLAN_EID_FH_PARAMS = 2,
1537         WLAN_EID_DS_PARAMS = 3,
1538         WLAN_EID_CF_PARAMS = 4,
1539         WLAN_EID_TIM = 5,
1540         WLAN_EID_IBSS_PARAMS = 6,
1541         WLAN_EID_CHALLENGE = 16,
1542
1543         WLAN_EID_COUNTRY = 7,
1544         WLAN_EID_HP_PARAMS = 8,
1545         WLAN_EID_HP_TABLE = 9,
1546         WLAN_EID_REQUEST = 10,
1547
1548         WLAN_EID_QBSS_LOAD = 11,
1549         WLAN_EID_EDCA_PARAM_SET = 12,
1550         WLAN_EID_TSPEC = 13,
1551         WLAN_EID_TCLAS = 14,
1552         WLAN_EID_SCHEDULE = 15,
1553         WLAN_EID_TS_DELAY = 43,
1554         WLAN_EID_TCLAS_PROCESSING = 44,
1555         WLAN_EID_QOS_CAPA = 46,
1556         /* 802.11z */
1557         WLAN_EID_LINK_ID = 101,
1558         /* 802.11s */
1559         WLAN_EID_MESH_CONFIG = 113,
1560         WLAN_EID_MESH_ID = 114,
1561         WLAN_EID_LINK_METRIC_REPORT = 115,
1562         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1563         WLAN_EID_PEER_MGMT = 117,
1564         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1565         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1566         WLAN_EID_BEACON_TIMING = 120,
1567         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1568         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1569         WLAN_EID_MCCAOP_ADVERT = 123,
1570         WLAN_EID_MCCAOP_TEARDOWN = 124,
1571         WLAN_EID_GANN = 125,
1572         WLAN_EID_RANN = 126,
1573         WLAN_EID_PREQ = 130,
1574         WLAN_EID_PREP = 131,
1575         WLAN_EID_PERR = 132,
1576         WLAN_EID_PXU = 137,
1577         WLAN_EID_PXUC = 138,
1578         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1579         WLAN_EID_MIC = 140,
1580
1581         WLAN_EID_PWR_CONSTRAINT = 32,
1582         WLAN_EID_PWR_CAPABILITY = 33,
1583         WLAN_EID_TPC_REQUEST = 34,
1584         WLAN_EID_TPC_REPORT = 35,
1585         WLAN_EID_SUPPORTED_CHANNELS = 36,
1586         WLAN_EID_CHANNEL_SWITCH = 37,
1587         WLAN_EID_MEASURE_REQUEST = 38,
1588         WLAN_EID_MEASURE_REPORT = 39,
1589         WLAN_EID_QUIET = 40,
1590         WLAN_EID_IBSS_DFS = 41,
1591
1592         WLAN_EID_ERP_INFO = 42,
1593         WLAN_EID_EXT_SUPP_RATES = 50,
1594
1595         WLAN_EID_HT_CAPABILITY = 45,
1596         WLAN_EID_HT_OPERATION = 61,
1597
1598         WLAN_EID_RSN = 48,
1599         WLAN_EID_MMIE = 76,
1600         WLAN_EID_VENDOR_SPECIFIC = 221,
1601         WLAN_EID_QOS_PARAMETER = 222,
1602
1603         WLAN_EID_AP_CHAN_REPORT = 51,
1604         WLAN_EID_NEIGHBOR_REPORT = 52,
1605         WLAN_EID_RCPI = 53,
1606         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1607         WLAN_EID_ANTENNA_INFO = 64,
1608         WLAN_EID_RSNI = 65,
1609         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1610         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1611         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1612         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1613         WLAN_EID_MULTIPLE_BSSID = 71,
1614         WLAN_EID_BSS_COEX_2040 = 72,
1615         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1616         WLAN_EID_EXT_CAPABILITY = 127,
1617
1618         WLAN_EID_MOBILITY_DOMAIN = 54,
1619         WLAN_EID_FAST_BSS_TRANSITION = 55,
1620         WLAN_EID_TIMEOUT_INTERVAL = 56,
1621         WLAN_EID_RIC_DATA = 57,
1622         WLAN_EID_RIC_DESCRIPTOR = 75,
1623
1624         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1625         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1626         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1627
1628         WLAN_EID_VHT_CAPABILITY = 191,
1629         WLAN_EID_VHT_OPERATION = 192,
1630         WLAN_EID_OPMODE_NOTIF = 199,
1631
1632         /* 802.11ad */
1633         WLAN_EID_NON_TX_BSSID_CAP =  83,
1634         WLAN_EID_WAKEUP_SCHEDULE = 143,
1635         WLAN_EID_EXT_SCHEDULE = 144,
1636         WLAN_EID_STA_AVAILABILITY = 145,
1637         WLAN_EID_DMG_TSPEC = 146,
1638         WLAN_EID_DMG_AT = 147,
1639         WLAN_EID_DMG_CAP = 148,
1640         WLAN_EID_DMG_OPERATION = 151,
1641         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1642         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1643         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1644         WLAN_EID_AWAKE_WINDOW = 157,
1645         WLAN_EID_MULTI_BAND = 158,
1646         WLAN_EID_ADDBA_EXT = 159,
1647         WLAN_EID_NEXT_PCP_LIST = 160,
1648         WLAN_EID_PCP_HANDOVER = 161,
1649         WLAN_EID_DMG_LINK_MARGIN = 162,
1650         WLAN_EID_SWITCHING_STREAM = 163,
1651         WLAN_EID_SESSION_TRANSITION = 164,
1652         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1653         WLAN_EID_CLUSTER_REPORT = 166,
1654         WLAN_EID_RELAY_CAP = 167,
1655         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1656         WLAN_EID_BEAM_LINK_MAINT = 169,
1657         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1658         WLAN_EID_U_PID = 171,
1659         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1660         WLAN_EID_QUIET_PERIOD_REQ = 175,
1661         WLAN_EID_QUIET_PERIOD_RESP = 177,
1662         WLAN_EID_EPAC_POLICY = 182,
1663         WLAN_EID_CLISTER_TIME_OFF = 183,
1664         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1665 };
1666
1667 /* Action category code */
1668 enum ieee80211_category {
1669         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1670         WLAN_CATEGORY_QOS = 1,
1671         WLAN_CATEGORY_DLS = 2,
1672         WLAN_CATEGORY_BACK = 3,
1673         WLAN_CATEGORY_PUBLIC = 4,
1674         WLAN_CATEGORY_HT = 7,
1675         WLAN_CATEGORY_SA_QUERY = 8,
1676         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1677         WLAN_CATEGORY_TDLS = 12,
1678         WLAN_CATEGORY_MESH_ACTION = 13,
1679         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1680         WLAN_CATEGORY_SELF_PROTECTED = 15,
1681         WLAN_CATEGORY_DMG = 16,
1682         WLAN_CATEGORY_WMM = 17,
1683         WLAN_CATEGORY_FST = 18,
1684         WLAN_CATEGORY_UNPROT_DMG = 20,
1685         WLAN_CATEGORY_VHT = 21,
1686         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1687         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1688 };
1689
1690 /* SPECTRUM_MGMT action code */
1691 enum ieee80211_spectrum_mgmt_actioncode {
1692         WLAN_ACTION_SPCT_MSR_REQ = 0,
1693         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1694         WLAN_ACTION_SPCT_TPC_REQ = 2,
1695         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1696         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1697 };
1698
1699 /* HT action codes */
1700 enum ieee80211_ht_actioncode {
1701         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1702         WLAN_HT_ACTION_SMPS = 1,
1703         WLAN_HT_ACTION_PSMP = 2,
1704         WLAN_HT_ACTION_PCO_PHASE = 3,
1705         WLAN_HT_ACTION_CSI = 4,
1706         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1707         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1708         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1709 };
1710
1711 /* VHT action codes */
1712 enum ieee80211_vht_actioncode {
1713         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1714         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1715         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1716 };
1717
1718 /* Self Protected Action codes */
1719 enum ieee80211_self_protected_actioncode {
1720         WLAN_SP_RESERVED = 0,
1721         WLAN_SP_MESH_PEERING_OPEN = 1,
1722         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1723         WLAN_SP_MESH_PEERING_CLOSE = 3,
1724         WLAN_SP_MGK_INFORM = 4,
1725         WLAN_SP_MGK_ACK = 5,
1726 };
1727
1728 /* Mesh action codes */
1729 enum ieee80211_mesh_actioncode {
1730         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1731         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1732         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1733         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1734         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1735         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1736         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1737         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1738         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1739         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1740         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1741 };
1742
1743 /* Security key length */
1744 enum ieee80211_key_len {
1745         WLAN_KEY_LEN_WEP40 = 5,
1746         WLAN_KEY_LEN_WEP104 = 13,
1747         WLAN_KEY_LEN_CCMP = 16,
1748         WLAN_KEY_LEN_TKIP = 32,
1749         WLAN_KEY_LEN_AES_CMAC = 16,
1750 };
1751
1752 /* Public action codes */
1753 enum ieee80211_pub_actioncode {
1754         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1755 };
1756
1757 /* TDLS action codes */
1758 enum ieee80211_tdls_actioncode {
1759         WLAN_TDLS_SETUP_REQUEST = 0,
1760         WLAN_TDLS_SETUP_RESPONSE = 1,
1761         WLAN_TDLS_SETUP_CONFIRM = 2,
1762         WLAN_TDLS_TEARDOWN = 3,
1763         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1764         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1765         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1766         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1767         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1768         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1769         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1770 };
1771
1772 /*
1773  * TDLS capabililites to be enabled in the 5th byte of the
1774  * @WLAN_EID_EXT_CAPABILITY information element
1775  */
1776 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1777 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1778
1779 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1780
1781 /* TDLS specific payload type in the LLC/SNAP header */
1782 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1783
1784 /**
1785  * enum - mesh synchronization method identifier
1786  *
1787  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1788  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1789  *      that will be specified in a vendor specific information element
1790  */
1791 enum {
1792         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1793         IEEE80211_SYNC_METHOD_VENDOR = 255,
1794 };
1795
1796 /**
1797  * enum - mesh path selection protocol identifier
1798  *
1799  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1800  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1801  *      be specified in a vendor specific information element
1802  */
1803 enum {
1804         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1805         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1806 };
1807
1808 /**
1809  * enum - mesh path selection metric identifier
1810  *
1811  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1812  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1813  *      specified in a vendor specific information element
1814  */
1815 enum {
1816         IEEE80211_PATH_METRIC_AIRTIME = 1,
1817         IEEE80211_PATH_METRIC_VENDOR = 255,
1818 };
1819
1820 /**
1821  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1822  *
1823  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1824  *
1825  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1826  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1827  *      this value
1828  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1829  *      the proactive PREQ with proactive PREP subfield set to 0
1830  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1831  *      supports the proactive PREQ with proactive PREP subfield set to 1
1832  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1833  *      the proactive RANN
1834  */
1835 enum ieee80211_root_mode_identifier {
1836         IEEE80211_ROOTMODE_NO_ROOT = 0,
1837         IEEE80211_ROOTMODE_ROOT = 1,
1838         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1839         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1840         IEEE80211_PROACTIVE_RANN = 4,
1841 };
1842
1843 /*
1844  * IEEE 802.11-2007 7.3.2.9 Country information element
1845  *
1846  * Minimum length is 8 octets, ie len must be evenly
1847  * divisible by 2
1848  */
1849
1850 /* Although the spec says 8 I'm seeing 6 in practice */
1851 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1852
1853 /* The Country String field of the element shall be 3 octets in length */
1854 #define IEEE80211_COUNTRY_STRING_LEN    3
1855
1856 /*
1857  * For regulatory extension stuff see IEEE 802.11-2007
1858  * Annex I (page 1141) and Annex J (page 1147). Also
1859  * review 7.3.2.9.
1860  *
1861  * When dot11RegulatoryClassesRequired is true and the
1862  * first_channel/reg_extension_id is >= 201 then the IE
1863  * compromises of the 'ext' struct represented below:
1864  *
1865  *  - Regulatory extension ID - when generating IE this just needs
1866  *    to be monotonically increasing for each triplet passed in
1867  *    the IE
1868  *  - Regulatory class - index into set of rules
1869  *  - Coverage class - index into air propagation time (Table 7-27),
1870  *    in microseconds, you can compute the air propagation time from
1871  *    the index by multiplying by 3, so index 10 yields a propagation
1872  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1873  *    yet. A value of 0 inicates air propagation of <= 1 us.
1874  *
1875  *  See also Table I.2 for Emission limit sets and table
1876  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1877  *  a reg_class to an emission limit set and behavior limit set.
1878  */
1879 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1880
1881 /*
1882  *  Channels numbers in the IE must be monotonically increasing
1883  *  if dot11RegulatoryClassesRequired is not true.
1884  *
1885  *  If dot11RegulatoryClassesRequired is true consecutive
1886  *  subband triplets following a regulatory triplet shall
1887  *  have monotonically increasing first_channel number fields.
1888  *
1889  *  Channel numbers shall not overlap.
1890  *
1891  *  Note that max_power is signed.
1892  */
1893 struct ieee80211_country_ie_triplet {
1894         union {
1895                 struct {
1896                         u8 first_channel;
1897                         u8 num_channels;
1898                         s8 max_power;
1899                 } __packed chans;
1900                 struct {
1901                         u8 reg_extension_id;
1902                         u8 reg_class;
1903                         u8 coverage_class;
1904                 } __packed ext;
1905         };
1906 } __packed;
1907
1908 enum ieee80211_timeout_interval_type {
1909         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1910         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1911         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1912 };
1913
1914 /* BACK action code */
1915 enum ieee80211_back_actioncode {
1916         WLAN_ACTION_ADDBA_REQ = 0,
1917         WLAN_ACTION_ADDBA_RESP = 1,
1918         WLAN_ACTION_DELBA = 2,
1919 };
1920
1921 /* BACK (block-ack) parties */
1922 enum ieee80211_back_parties {
1923         WLAN_BACK_RECIPIENT = 0,
1924         WLAN_BACK_INITIATOR = 1,
1925 };
1926
1927 /* SA Query action */
1928 enum ieee80211_sa_query_action {
1929         WLAN_ACTION_SA_QUERY_REQUEST = 0,
1930         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1931 };
1932
1933
1934 /* cipher suite selectors */
1935 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1936 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1937 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1938 /* reserved:                            0x000FAC03 */
1939 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1940 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1941 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1942 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
1943
1944 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
1945
1946 /* AKM suite selectors */
1947 #define WLAN_AKM_SUITE_8021X            0x000FAC01
1948 #define WLAN_AKM_SUITE_PSK              0x000FAC02
1949 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
1950 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
1951 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
1952 #define WLAN_AKM_SUITE_SAE              0x000FAC08
1953 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
1954
1955 #define WLAN_MAX_KEY_LEN                32
1956
1957 #define WLAN_PMKID_LEN                  16
1958
1959 #define WLAN_OUI_WFA                    0x506f9a
1960 #define WLAN_OUI_TYPE_WFA_P2P           9
1961 #define WLAN_OUI_MICROSOFT              0x0050f2
1962 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
1963 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
1964 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
1965
1966 /*
1967  * WMM/802.11e Tspec Element
1968  */
1969 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
1970 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
1971
1972 enum ieee80211_tspec_status_code {
1973         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1974         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1975 };
1976
1977 struct ieee80211_tspec_ie {
1978         u8 element_id;
1979         u8 len;
1980         u8 oui[3];
1981         u8 oui_type;
1982         u8 oui_subtype;
1983         u8 version;
1984         __le16 tsinfo;
1985         u8 tsinfo_resvd;
1986         __le16 nominal_msdu;
1987         __le16 max_msdu;
1988         __le32 min_service_int;
1989         __le32 max_service_int;
1990         __le32 inactivity_int;
1991         __le32 suspension_int;
1992         __le32 service_start_time;
1993         __le32 min_data_rate;
1994         __le32 mean_data_rate;
1995         __le32 peak_data_rate;
1996         __le32 max_burst_size;
1997         __le32 delay_bound;
1998         __le32 min_phy_rate;
1999         __le16 sba;
2000         __le16 medium_time;
2001 } __packed;
2002
2003 /**
2004  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2005  * @hdr: the frame
2006  *
2007  * The qos ctrl bytes come after the frame_control, duration, seq_num
2008  * and 3 or 4 addresses of length ETH_ALEN.
2009  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2010  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2011  */
2012 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2013 {
2014         if (ieee80211_has_a4(hdr->frame_control))
2015                 return (u8 *)hdr + 30;
2016         else
2017                 return (u8 *)hdr + 24;
2018 }
2019
2020 /**
2021  * ieee80211_get_SA - get pointer to SA
2022  * @hdr: the frame
2023  *
2024  * Given an 802.11 frame, this function returns the offset
2025  * to the source address (SA). It does not verify that the
2026  * header is long enough to contain the address, and the
2027  * header must be long enough to contain the frame control
2028  * field.
2029  */
2030 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2031 {
2032         if (ieee80211_has_a4(hdr->frame_control))
2033                 return hdr->addr4;
2034         if (ieee80211_has_fromds(hdr->frame_control))
2035                 return hdr->addr3;
2036         return hdr->addr2;
2037 }
2038
2039 /**
2040  * ieee80211_get_DA - get pointer to DA
2041  * @hdr: the frame
2042  *
2043  * Given an 802.11 frame, this function returns the offset
2044  * to the destination address (DA). It does not verify that
2045  * the header is long enough to contain the address, and the
2046  * header must be long enough to contain the frame control
2047  * field.
2048  */
2049 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2050 {
2051         if (ieee80211_has_tods(hdr->frame_control))
2052                 return hdr->addr3;
2053         else
2054                 return hdr->addr1;
2055 }
2056
2057 /**
2058  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2059  * @hdr: the frame (buffer must include at least the first octet of payload)
2060  */
2061 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2062 {
2063         if (ieee80211_is_disassoc(hdr->frame_control) ||
2064             ieee80211_is_deauth(hdr->frame_control))
2065                 return true;
2066
2067         if (ieee80211_is_action(hdr->frame_control)) {
2068                 u8 *category;
2069
2070                 /*
2071                  * Action frames, excluding Public Action frames, are Robust
2072                  * Management Frames. However, if we are looking at a Protected
2073                  * frame, skip the check since the data may be encrypted and
2074                  * the frame has already been found to be a Robust Management
2075                  * Frame (by the other end).
2076                  */
2077                 if (ieee80211_has_protected(hdr->frame_control))
2078                         return true;
2079                 category = ((u8 *) hdr) + 24;
2080                 return *category != WLAN_CATEGORY_PUBLIC &&
2081                         *category != WLAN_CATEGORY_HT &&
2082                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2083                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2084         }
2085
2086         return false;
2087 }
2088
2089 /**
2090  * ieee80211_is_public_action - check if frame is a public action frame
2091  * @hdr: the frame
2092  * @len: length of the frame
2093  */
2094 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2095                                               size_t len)
2096 {
2097         struct ieee80211_mgmt *mgmt = (void *)hdr;
2098
2099         if (len < IEEE80211_MIN_ACTION_SIZE)
2100                 return false;
2101         if (!ieee80211_is_action(hdr->frame_control))
2102                 return false;
2103         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2104 }
2105
2106 /**
2107  * ieee80211_dsss_chan_to_freq - get channel center frequency
2108  * @channel: the DSSS channel
2109  *
2110  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2111  * Ref IEEE 802.11-2007 section 15.6
2112  */
2113 static inline int ieee80211_dsss_chan_to_freq(int channel)
2114 {
2115         if ((channel > 0) && (channel < 14))
2116                 return 2407 + (channel * 5);
2117         else if (channel == 14)
2118                 return 2484;
2119         else
2120                 return -1;
2121 }
2122
2123 /**
2124  * ieee80211_freq_to_dsss_chan - get channel
2125  * @freq: the frequency
2126  *
2127  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2128  * Ref IEEE 802.11-2007 section 15.6
2129  *
2130  * This routine selects the channel with the closest center frequency.
2131  */
2132 static inline int ieee80211_freq_to_dsss_chan(int freq)
2133 {
2134         if ((freq >= 2410) && (freq < 2475))
2135                 return (freq - 2405) / 5;
2136         else if ((freq >= 2482) && (freq < 2487))
2137                 return 14;
2138         else
2139                 return -1;
2140 }
2141
2142 /**
2143  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2144  * @tu: the TUs
2145  */
2146 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2147 {
2148         return 1024 * tu;
2149 }
2150
2151 /**
2152  * ieee80211_check_tim - check if AID bit is set in TIM
2153  * @tim: the TIM IE
2154  * @tim_len: length of the TIM IE
2155  * @aid: the AID to look for
2156  */
2157 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2158                                        u8 tim_len, u16 aid)
2159 {
2160         u8 mask;
2161         u8 index, indexn1, indexn2;
2162
2163         if (unlikely(!tim || tim_len < sizeof(*tim)))
2164                 return false;
2165
2166         aid &= 0x3fff;
2167         index = aid / 8;
2168         mask  = 1 << (aid & 7);
2169
2170         indexn1 = tim->bitmap_ctrl & 0xfe;
2171         indexn2 = tim_len + indexn1 - 4;
2172
2173         if (index < indexn1 || index > indexn2)
2174                 return false;
2175
2176         index -= indexn1;
2177
2178         return !!(tim->virtual_map[index] & mask);
2179 }
2180
2181 #endif /* LINUX_IEEE80211_H */