LXR linux/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
  51#define IEEE80211_SCTL_FRAG             0x000F
  52#define IEEE80211_SCTL_SEQ              0xFFF0
  53
  54#define IEEE80211_FTYPE_MGMT            0x0000
  55#define IEEE80211_FTYPE_CTL             0x0004
  56#define IEEE80211_FTYPE_DATA            0x0008
  57
  58/* management */
  59#define IEEE80211_STYPE_ASSOC_REQ       0x0000
  60#define IEEE80211_STYPE_ASSOC_RESP      0x0010
  61#define IEEE80211_STYPE_REASSOC_REQ     0x0020
  62#define IEEE80211_STYPE_REASSOC_RESP    0x0030
  63#define IEEE80211_STYPE_PROBE_REQ       0x0040
  64#define IEEE80211_STYPE_PROBE_RESP      0x0050
  65#define IEEE80211_STYPE_BEACON          0x0080
  66#define IEEE80211_STYPE_ATIM            0x0090
  67#define IEEE80211_STYPE_DISASSOC        0x00A0
  68#define IEEE80211_STYPE_AUTH            0x00B0
  69#define IEEE80211_STYPE_DEAUTH          0x00C0
  70#define IEEE80211_STYPE_ACTION          0x00D0
  71
  72/* control */
  73#define IEEE80211_STYPE_BACK_REQ        0x0080
  74#define IEEE80211_STYPE_BACK            0x0090
  75#define IEEE80211_STYPE_PSPOLL          0x00A0
  76#define IEEE80211_STYPE_RTS             0x00B0
  77#define IEEE80211_STYPE_CTS             0x00C0
  78#define IEEE80211_STYPE_ACK             0x00D0
  79#define IEEE80211_STYPE_CFEND           0x00E0
  80#define IEEE80211_STYPE_CFENDACK        0x00F0
  81
  82/* data */
  83#define IEEE80211_STYPE_DATA                    0x0000
  84#define IEEE80211_STYPE_DATA_CFACK              0x0010
  85#define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  86#define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  87#define IEEE80211_STYPE_NULLFUNC                0x0040
  88#define IEEE80211_STYPE_CFACK                   0x0050
  89#define IEEE80211_STYPE_CFPOLL                  0x0060
  90#define IEEE80211_STYPE_CFACKPOLL               0x0070
  91#define IEEE80211_STYPE_QOS_DATA                0x0080
  92#define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  93#define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  94#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  95#define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  96#define IEEE80211_STYPE_QOS_CFACK               0x00D0
  97#define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
  98#define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
  99
 100
 101/* miscellaneous IEEE 802.11 constants */
 102#define IEEE80211_MAX_FRAG_THRESHOLD    2352
 103#define IEEE80211_MAX_RTS_THRESHOLD     2353
 104#define IEEE80211_MAX_AID               2007
 105#define IEEE80211_MAX_TIM_LEN           251
 106/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 107   6.2.1.1.2.
 108
 109   802.11e clarifies the figure in section 7.1.2. The frame body is
 110   up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 111#define IEEE80211_MAX_DATA_LEN          2304
 112/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 113#define IEEE80211_MAX_FRAME_LEN         2352
 114
 115#define IEEE80211_MAX_SSID_LEN          32
 116
 117#define IEEE80211_MAX_MESH_ID_LEN       32
 118#define IEEE80211_MESH_CONFIG_LEN       24
 119
 120#define IEEE80211_QOS_CTL_LEN           2
 121#define IEEE80211_QOS_CTL_TID_MASK      0x000F
 122#define IEEE80211_QOS_CTL_TAG1D_MASK    0x0007
 123
 124struct ieee80211_hdr {
 125        __le16 frame_control;
 126        __le16 duration_id;
 127        u8 addr1[6];
 128        u8 addr2[6];
 129        u8 addr3[6];
 130        __le16 seq_ctrl;
 131        u8 addr4[6];
 132} __attribute__ ((packed));
 133
 134/**
 135 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 136 * @fc: frame control bytes in little-endian byteorder
 137 */
 138static inline int ieee80211_has_tods(__le16 fc)
 139{
 140        return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 141}
 142
 143/**
 144 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 145 * @fc: frame control bytes in little-endian byteorder
 146 */
 147static inline int ieee80211_has_fromds(__le16 fc)
 148{
 149        return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 150}
 151
 152/**
 153 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 154 * @fc: frame control bytes in little-endian byteorder
 155 */
 156static inline int ieee80211_has_a4(__le16 fc)
 157{
 158        __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 159        return (fc & tmp) == tmp;
 160}
 161
 162/**
 163 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 164 * @fc: frame control bytes in little-endian byteorder
 165 */
 166static inline int ieee80211_has_morefrags(__le16 fc)
 167{
 168        return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 169}
 170
 171/**
 172 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 173 * @fc: frame control bytes in little-endian byteorder
 174 */
 175static inline int ieee80211_has_retry(__le16 fc)
 176{
 177        return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 178}
 179
 180/**
 181 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 182 * @fc: frame control bytes in little-endian byteorder
 183 */
 184static inline int ieee80211_has_pm(__le16 fc)
 185{
 186        return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 187}
 188
 189/**
 190 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 191 * @fc: frame control bytes in little-endian byteorder
 192 */
 193static inline int ieee80211_has_moredata(__le16 fc)
 194{
 195        return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 196}
 197
 198/**
 199 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 200 * @fc: frame control bytes in little-endian byteorder
 201 */
 202static inline int ieee80211_has_protected(__le16 fc)
 203{
 204        return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 205}
 206
 207/**
 208 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 209 * @fc: frame control bytes in little-endian byteorder
 210 */
 211static inline int ieee80211_has_order(__le16 fc)
 212{
 213        return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 214}
 215
 216/**
 217 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 218 * @fc: frame control bytes in little-endian byteorder
 219 */
 220static inline int ieee80211_is_mgmt(__le16 fc)
 221{
 222        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 223               cpu_to_le16(IEEE80211_FTYPE_MGMT);
 224}
 225
 226/**
 227 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 228 * @fc: frame control bytes in little-endian byteorder
 229 */
 230static inline int ieee80211_is_ctl(__le16 fc)
 231{
 232        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 233               cpu_to_le16(IEEE80211_FTYPE_CTL);
 234}
 235
 236/**
 237 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 238 * @fc: frame control bytes in little-endian byteorder
 239 */
 240static inline int ieee80211_is_data(__le16 fc)
 241{
 242        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 243               cpu_to_le16(IEEE80211_FTYPE_DATA);
 244}
 245
 246/**
 247 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 248 * @fc: frame control bytes in little-endian byteorder
 249 */
 250static inline int ieee80211_is_data_qos(__le16 fc)
 251{
 252        /*
 253         * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 254         * to check the one bit
 255         */
 256        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 257               cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 258}
 259
 260/**
 261 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 262 * @fc: frame control bytes in little-endian byteorder
 263 */
 264static inline int ieee80211_is_data_present(__le16 fc)
 265{
 266        /*
 267         * mask with 0x40 and test that that bit is clear to only return true
 268         * for the data-containing substypes.
 269         */
 270        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 271               cpu_to_le16(IEEE80211_FTYPE_DATA);
 272}
 273
 274/**
 275 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 276 * @fc: frame control bytes in little-endian byteorder
 277 */
 278static inline int ieee80211_is_assoc_req(__le16 fc)
 279{
 280        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 281               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 282}
 283
 284/**
 285 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 286 * @fc: frame control bytes in little-endian byteorder
 287 */
 288static inline int ieee80211_is_assoc_resp(__le16 fc)
 289{
 290        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 291               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 292}
 293
 294/**
 295 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 296 * @fc: frame control bytes in little-endian byteorder
 297 */
 298static inline int ieee80211_is_reassoc_req(__le16 fc)
 299{
 300        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 301               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 302}
 303
 304/**
 305 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 306 * @fc: frame control bytes in little-endian byteorder
 307 */
 308static inline int ieee80211_is_reassoc_resp(__le16 fc)
 309{
 310        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 311               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 312}
 313
 314/**
 315 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 316 * @fc: frame control bytes in little-endian byteorder
 317 */
 318static inline int ieee80211_is_probe_req(__le16 fc)
 319{
 320        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 321               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 322}
 323
 324/**
 325 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 326 * @fc: frame control bytes in little-endian byteorder
 327 */
 328static inline int ieee80211_is_probe_resp(__le16 fc)
 329{
 330        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 331               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 332}
 333
 334/**
 335 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 336 * @fc: frame control bytes in little-endian byteorder
 337 */
 338static inline int ieee80211_is_beacon(__le16 fc)
 339{
 340        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 341               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 342}
 343
 344/**
 345 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 346 * @fc: frame control bytes in little-endian byteorder
 347 */
 348static inline int ieee80211_is_atim(__le16 fc)
 349{
 350        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 351               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 352}
 353
 354/**
 355 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 356 * @fc: frame control bytes in little-endian byteorder
 357 */
 358static inline int ieee80211_is_disassoc(__le16 fc)
 359{
 360        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 361               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 362}
 363
 364/**
 365 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 366 * @fc: frame control bytes in little-endian byteorder
 367 */
 368static inline int ieee80211_is_auth(__le16 fc)
 369{
 370        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 371               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 372}
 373
 374/**
 375 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 376 * @fc: frame control bytes in little-endian byteorder
 377 */
 378static inline int ieee80211_is_deauth(__le16 fc)
 379{
 380        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 381               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 382}
 383
 384/**
 385 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 386 * @fc: frame control bytes in little-endian byteorder
 387 */
 388static inline int ieee80211_is_action(__le16 fc)
 389{
 390        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 391               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 392}
 393
 394/**
 395 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 396 * @fc: frame control bytes in little-endian byteorder
 397 */
 398static inline int ieee80211_is_back_req(__le16 fc)
 399{
 400        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 401               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 402}
 403
 404/**
 405 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 406 * @fc: frame control bytes in little-endian byteorder
 407 */
 408static inline int ieee80211_is_back(__le16 fc)
 409{
 410        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 411               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 412}
 413
 414/**
 415 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 416 * @fc: frame control bytes in little-endian byteorder
 417 */
 418static inline int ieee80211_is_pspoll(__le16 fc)
 419{
 420        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 421               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 422}
 423
 424/**
 425 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 426 * @fc: frame control bytes in little-endian byteorder
 427 */
 428static inline int ieee80211_is_rts(__le16 fc)
 429{
 430        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 431               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 432}
 433
 434/**
 435 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 436 * @fc: frame control bytes in little-endian byteorder
 437 */
 438static inline int ieee80211_is_cts(__le16 fc)
 439{
 440        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 441               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 442}
 443
 444/**
 445 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 446 * @fc: frame control bytes in little-endian byteorder
 447 */
 448static inline int ieee80211_is_ack(__le16 fc)
 449{
 450        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 451               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 452}
 453
 454/**
 455 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 456 * @fc: frame control bytes in little-endian byteorder
 457 */
 458static inline int ieee80211_is_cfend(__le16 fc)
 459{
 460        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 461               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 462}
 463
 464/**
 465 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 466 * @fc: frame control bytes in little-endian byteorder
 467 */
 468static inline int ieee80211_is_cfendack(__le16 fc)
 469{
 470        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 471               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 472}
 473
 474/**
 475 * ieee80211_is_nullfunc - check if FTYPE=IEEE80211_FTYPE_DATA and STYPE=IEEE80211_STYPE_NULLFUNC
 476 * @fc: frame control bytes in little-endian byteorder
 477 */
 478static inline int ieee80211_is_nullfunc(__le16 fc)
 479{
 480        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 481               cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 482}
 483
 484struct ieee80211s_hdr {
 485        u8 flags;
 486        u8 ttl;
 487        __le32 seqnum;
 488        u8 eaddr1[6];
 489        u8 eaddr2[6];
 490        u8 eaddr3[6];
 491} __attribute__ ((packed));
 492
 493/* Mesh flags */
 494#define MESH_FLAGS_AE_A4        0x1
 495#define MESH_FLAGS_AE_A5_A6     0x2
 496#define MESH_FLAGS_AE           0x3
 497#define MESH_FLAGS_PS_DEEP      0x4
 498
 499/**
 500 * struct ieee80211_quiet_ie
 501 *
 502 * This structure refers to "Quiet information element"
 503 */
 504struct ieee80211_quiet_ie {
 505        u8 count;
 506        u8 period;
 507        __le16 duration;
 508        __le16 offset;
 509} __attribute__ ((packed));
 510
 511/**
 512 * struct ieee80211_msrment_ie
 513 *
 514 * This structure refers to "Measurement Request/Report information element"
 515 */
 516struct ieee80211_msrment_ie {
 517        u8 token;
 518        u8 mode;
 519        u8 type;
 520        u8 request[0];
 521} __attribute__ ((packed));
 522
 523/**
 524 * struct ieee80211_channel_sw_ie
 525 *
 526 * This structure refers to "Channel Switch Announcement information element"
 527 */
 528struct ieee80211_channel_sw_ie {
 529        u8 mode;
 530        u8 new_ch_num;
 531        u8 count;
 532} __attribute__ ((packed));
 533
 534/**
 535 * struct ieee80211_tim
 536 *
 537 * This structure refers to "Traffic Indication Map information element"
 538 */
 539struct ieee80211_tim_ie {
 540        u8 dtim_count;
 541        u8 dtim_period;
 542        u8 bitmap_ctrl;
 543        /* variable size: 1 - 251 bytes */
 544        u8 virtual_map[1];
 545} __attribute__ ((packed));
 546
 547#define WLAN_SA_QUERY_TR_ID_LEN 2
 548
 549struct ieee80211_mgmt {
 550        __le16 frame_control;
 551        __le16 duration;
 552        u8 da[6];
 553        u8 sa[6];
 554        u8 bssid[6];
 555        __le16 seq_ctrl;
 556        union {
 557                struct {
 558                        __le16 auth_alg;
 559                        __le16 auth_transaction;
 560                        __le16 status_code;
 561                        /* possibly followed by Challenge text */
 562                        u8 variable[0];
 563                } __attribute__ ((packed)) auth;
 564                struct {
 565                        __le16 reason_code;
 566                } __attribute__ ((packed)) deauth;
 567                struct {
 568                        __le16 capab_info;
 569                        __le16 listen_interval;
 570                        /* followed by SSID and Supported rates */
 571                        u8 variable[0];
 572                } __attribute__ ((packed)) assoc_req;
 573                struct {
 574                        __le16 capab_info;
 575                        __le16 status_code;
 576                        __le16 aid;
 577                        /* followed by Supported rates */
 578                        u8 variable[0];
 579                } __attribute__ ((packed)) assoc_resp, reassoc_resp;
 580                struct {
 581                        __le16 capab_info;
 582                        __le16 listen_interval;
 583                        u8 current_ap[6];
 584                        /* followed by SSID and Supported rates */
 585                        u8 variable[0];
 586                } __attribute__ ((packed)) reassoc_req;
 587                struct {
 588                        __le16 reason_code;
 589                } __attribute__ ((packed)) disassoc;
 590                struct {
 591                        __le64 timestamp;
 592                        __le16 beacon_int;
 593                        __le16 capab_info;
 594                        /* followed by some of SSID, Supported rates,
 595                         * FH Params, DS Params, CF Params, IBSS Params, TIM */
 596                        u8 variable[0];
 597                } __attribute__ ((packed)) beacon;
 598                struct {
 599                        /* only variable items: SSID, Supported rates */
 600                        u8 variable[0];
 601                } __attribute__ ((packed)) probe_req;
 602                struct {
 603                        __le64 timestamp;
 604                        __le16 beacon_int;
 605                        __le16 capab_info;
 606                        /* followed by some of SSID, Supported rates,
 607                         * FH Params, DS Params, CF Params, IBSS Params */
 608                        u8 variable[0];
 609                } __attribute__ ((packed)) probe_resp;
 610                struct {
 611                        u8 category;
 612                        union {
 613                                struct {
 614                                        u8 action_code;
 615                                        u8 dialog_token;
 616                                        u8 status_code;
 617                                        u8 variable[0];
 618                                } __attribute__ ((packed)) wme_action;
 619                                struct{
 620                                        u8 action_code;
 621                                        u8 element_id;
 622                                        u8 length;
 623                                        struct ieee80211_channel_sw_ie sw_elem;
 624                                } __attribute__((packed)) chan_switch;
 625                                struct{
 626                                        u8 action_code;
 627                                        u8 dialog_token;
 628                                        u8 element_id;
 629                                        u8 length;
 630                                        struct ieee80211_msrment_ie msr_elem;
 631                                } __attribute__((packed)) measurement;
 632                                struct{
 633                                        u8 action_code;
 634                                        u8 dialog_token;
 635                                        __le16 capab;
 636                                        __le16 timeout;
 637                                        __le16 start_seq_num;
 638                                } __attribute__((packed)) addba_req;
 639                                struct{
 640                                        u8 action_code;
 641                                        u8 dialog_token;
 642                                        __le16 status;
 643                                        __le16 capab;
 644                                        __le16 timeout;
 645                                } __attribute__((packed)) addba_resp;
 646                                struct{
 647                                        u8 action_code;
 648                                        __le16 params;
 649                                        __le16 reason_code;
 650                                } __attribute__((packed)) delba;
 651                                struct{
 652                                        u8 action_code;
 653                                        /* capab_info for open and confirm,
 654                                         * reason for close
 655                                         */
 656                                        __le16 aux;
 657                                        /* Followed in plink_confirm by status
 658                                         * code, AID and supported rates,
 659                                         * and directly by supported rates in
 660                                         * plink_open and plink_close
 661                                         */
 662                                        u8 variable[0];
 663                                } __attribute__((packed)) plink_action;
 664                                struct{
 665                                        u8 action_code;
 666                                        u8 variable[0];
 667                                } __attribute__((packed)) mesh_action;
 668                                struct {
 669                                        u8 action;
 670                                        u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 671                                } __attribute__ ((packed)) sa_query;
 672                        } u;
 673                } __attribute__ ((packed)) action;
 674        } u;
 675} __attribute__ ((packed));
 676
 677/* mgmt header + 1 byte category code */
 678#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 679
 680
 681/* Management MIC information element (IEEE 802.11w) */
 682struct ieee80211_mmie {
 683        u8 element_id;
 684        u8 length;
 685        __le16 key_id;
 686        u8 sequence_number[6];
 687        u8 mic[8];
 688} __attribute__ ((packed));
 689
 690/* Control frames */
 691struct ieee80211_rts {
 692        __le16 frame_control;
 693        __le16 duration;
 694        u8 ra[6];
 695        u8 ta[6];
 696} __attribute__ ((packed));
 697
 698struct ieee80211_cts {
 699        __le16 frame_control;
 700        __le16 duration;
 701        u8 ra[6];
 702} __attribute__ ((packed));
 703
 704struct ieee80211_pspoll {
 705        __le16 frame_control;
 706        __le16 aid;
 707        u8 bssid[6];
 708        u8 ta[6];
 709} __attribute__ ((packed));
 710
 711/**
 712 * struct ieee80211_bar - HT Block Ack Request
 713 *
 714 * This structure refers to "HT BlockAckReq" as
 715 * described in 802.11n draft section 7.2.1.7.1
 716 */
 717struct ieee80211_bar {
 718        __le16 frame_control;
 719        __le16 duration;
 720        __u8 ra[6];
 721        __u8 ta[6];
 722        __le16 control;
 723        __le16 start_seq_num;
 724} __attribute__((packed));
 725
 726/* 802.11 BAR control masks */
 727#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 728#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 729
 730
 731#define IEEE80211_HT_MCS_MASK_LEN               10
 732
 733/**
 734 * struct ieee80211_mcs_info - MCS information
 735 * @rx_mask: RX mask
 736 * @rx_highest: highest supported RX rate
 737 * @tx_params: TX parameters
 738 */
 739struct ieee80211_mcs_info {
 740        u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
 741        __le16 rx_highest;
 742        u8 tx_params;
 743        u8 reserved[3];
 744} __attribute__((packed));
 745
 746/* 802.11n HT capability MSC set */
 747#define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
 748#define IEEE80211_HT_MCS_TX_DEFINED             0x01
 749#define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
 750/* value 0 == 1 stream etc */
 751#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
 752#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
 753#define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
 754#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
 755
 756/*
 757 * 802.11n D5.0 20.3.5 / 20.6 says:
 758 * - indices 0 to 7 and 32 are single spatial stream
 759 * - 8 to 31 are multiple spatial streams using equal modulation
 760 *   [8..15 for two streams, 16..23 for three and 24..31 for four]
 761 * - remainder are multiple spatial streams using unequal modulation
 762 */
 763#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
 764#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
 765        (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
 766
 767/**
 768 * struct ieee80211_ht_cap - HT capabilities
 769 *
 770 * This structure is the "HT capabilities element" as
 771 * described in 802.11n D5.0 7.3.2.57
 772 */
 773struct ieee80211_ht_cap {
 774        __le16 cap_info;
 775        u8 ampdu_params_info;
 776
 777        /* 16 bytes MCS information */
 778        struct ieee80211_mcs_info mcs;
 779
 780        __le16 extended_ht_cap_info;
 781        __le32 tx_BF_cap_info;
 782        u8 antenna_selection_info;
 783} __attribute__ ((packed));
 784
 785/* 802.11n HT capabilities masks (for cap_info) */
 786#define IEEE80211_HT_CAP_LDPC_CODING            0x0001
 787#define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
 788#define IEEE80211_HT_CAP_SM_PS                  0x000C
 789#define IEEE80211_HT_CAP_GRN_FLD                0x0010
 790#define IEEE80211_HT_CAP_SGI_20                 0x0020
 791#define IEEE80211_HT_CAP_SGI_40                 0x0040
 792#define IEEE80211_HT_CAP_TX_STBC                0x0080
 793#define IEEE80211_HT_CAP_RX_STBC                0x0300
 794#define IEEE80211_HT_CAP_DELAY_BA               0x0400
 795#define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 796#define IEEE80211_HT_CAP_DSSSCCK40              0x1000
 797#define IEEE80211_HT_CAP_PSMP_SUPPORT           0x2000
 798#define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
 799#define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
 800
 801/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
 802#define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
 803#define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
 804
 805/*
 806 * Maximum length of AMPDU that the STA can receive.
 807 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 808 */
 809enum ieee80211_max_ampdu_length_exp {
 810        IEEE80211_HT_MAX_AMPDU_8K = 0,
 811        IEEE80211_HT_MAX_AMPDU_16K = 1,
 812        IEEE80211_HT_MAX_AMPDU_32K = 2,
 813        IEEE80211_HT_MAX_AMPDU_64K = 3
 814};
 815
 816#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
 817
 818/* Minimum MPDU start spacing */
 819enum ieee80211_min_mpdu_spacing {
 820        IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
 821        IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
 822        IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
 823        IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
 824        IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
 825        IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
 826        IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
 827        IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
 828};
 829
 830/**
 831 * struct ieee80211_ht_info - HT information
 832 *
 833 * This structure is the "HT information element" as
 834 * described in 802.11n D5.0 7.3.2.58
 835 */
 836struct ieee80211_ht_info {
 837        u8 control_chan;
 838        u8 ht_param;
 839        __le16 operation_mode;
 840        __le16 stbc_param;
 841        u8 basic_set[16];
 842} __attribute__ ((packed));
 843
 844/* for ht_param */
 845#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
 846#define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
 847#define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
 848#define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
 849#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
 850#define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
 851#define IEEE80211_HT_PARAM_SPSMP_SUPPORT                0x10
 852#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN           0xE0
 853
 854/* for operation_mode */
 855#define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
 856#define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
 857#define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
 858#define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
 859#define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
 860#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
 861#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
 862
 863/* for stbc_param */
 864#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
 865#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
 866#define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
 867#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
 868#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
 869#define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
 870
 871
 872/* block-ack parameters */
 873#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
 874#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
 875#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
 876#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
 877#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
 878
 879/*
 880 * A-PMDU buffer sizes
 881 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
 882 */
 883#define IEEE80211_MIN_AMPDU_BUF 0x8
 884#define IEEE80211_MAX_AMPDU_BUF 0x40
 885
 886
 887/* Spatial Multiplexing Power Save Modes */
 888#define WLAN_HT_CAP_SM_PS_STATIC        0
 889#define WLAN_HT_CAP_SM_PS_DYNAMIC       1
 890#define WLAN_HT_CAP_SM_PS_INVALID       2
 891#define WLAN_HT_CAP_SM_PS_DISABLED      3
 892
 893/* Authentication algorithms */
 894#define WLAN_AUTH_OPEN 0
 895#define WLAN_AUTH_SHARED_KEY 1
 896#define WLAN_AUTH_FT 2
 897#define WLAN_AUTH_LEAP 128
 898
 899#define WLAN_AUTH_CHALLENGE_LEN 128
 900
 901#define WLAN_CAPABILITY_ESS             (1<<0)
 902#define WLAN_CAPABILITY_IBSS            (1<<1)
 903#define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
 904#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
 905#define WLAN_CAPABILITY_PRIVACY         (1<<4)
 906#define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
 907#define WLAN_CAPABILITY_PBCC            (1<<6)
 908#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
 909
 910/* 802.11h */
 911#define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
 912#define WLAN_CAPABILITY_QOS             (1<<9)
 913#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
 914#define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
 915/* measurement */
 916#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
 917#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
 918#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
 919
 920#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
 921#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
 922#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
 923
 924
 925/* 802.11g ERP information element */
 926#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
 927#define WLAN_ERP_USE_PROTECTION (1<<1)
 928#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
 929
 930/* WLAN_ERP_BARKER_PREAMBLE values */
 931enum {
 932        WLAN_ERP_PREAMBLE_SHORT = 0,
 933        WLAN_ERP_PREAMBLE_LONG = 1,
 934};
 935
 936/* Status codes */
 937enum ieee80211_statuscode {
 938        WLAN_STATUS_SUCCESS = 0,
 939        WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
 940        WLAN_STATUS_CAPS_UNSUPPORTED = 10,
 941        WLAN_STATUS_REASSOC_NO_ASSOC = 11,
 942        WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
 943        WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
 944        WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
 945        WLAN_STATUS_CHALLENGE_FAIL = 15,
 946        WLAN_STATUS_AUTH_TIMEOUT = 16,
 947        WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
 948        WLAN_STATUS_ASSOC_DENIED_RATES = 18,
 949        /* 802.11b */
 950        WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
 951        WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
 952        WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
 953        /* 802.11h */
 954        WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
 955        WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
 956        WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
 957        /* 802.11g */
 958        WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
 959        WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
 960        /* 802.11w */
 961        WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
 962        WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
 963        /* 802.11i */
 964        WLAN_STATUS_INVALID_IE = 40,
 965        WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
 966        WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
 967        WLAN_STATUS_INVALID_AKMP = 43,
 968        WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
 969        WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
 970        WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
 971        /* 802.11e */
 972        WLAN_STATUS_UNSPECIFIED_QOS = 32,
 973        WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
 974        WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
 975        WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
 976        WLAN_STATUS_REQUEST_DECLINED = 37,
 977        WLAN_STATUS_INVALID_QOS_PARAM = 38,
 978        WLAN_STATUS_CHANGE_TSPEC = 39,
 979        WLAN_STATUS_WAIT_TS_DELAY = 47,
 980        WLAN_STATUS_NO_DIRECT_LINK = 48,
 981        WLAN_STATUS_STA_NOT_PRESENT = 49,
 982        WLAN_STATUS_STA_NOT_QSTA = 50,
 983};
 984
 985
 986/* Reason codes */
 987enum ieee80211_reasoncode {
 988        WLAN_REASON_UNSPECIFIED = 1,
 989        WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
 990        WLAN_REASON_DEAUTH_LEAVING = 3,
 991        WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
 992        WLAN_REASON_DISASSOC_AP_BUSY = 5,
 993        WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
 994        WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
 995        WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
 996        WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
 997        /* 802.11h */
 998        WLAN_REASON_DISASSOC_BAD_POWER = 10,
 999        WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1000        /* 802.11i */

1001        WLAN_REASON_INVALID_IE = 13,
1002        WLAN_REASON_MIC_FAILURE = 14,
1003        WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1004        WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1005        WLAN_REASON_IE_DIFFERENT = 17,
1006        WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1007        WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1008        WLAN_REASON_INVALID_AKMP = 20,
1009        WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1010        WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1011        WLAN_REASON_IEEE8021X_FAILED = 23,
1012        WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1013        /* 802.11e */
1014        WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1015        WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1016        WLAN_REASON_DISASSOC_LOW_ACK = 34,
1017        WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1018        WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1019        WLAN_REASON_QSTA_NOT_USE = 37,
1020        WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1021        WLAN_REASON_QSTA_TIMEOUT = 39,
1022        WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1023};
1024
1025
1026/* Information Element IDs */
1027enum ieee80211_eid {
1028        WLAN_EID_SSID = 0,
1029        WLAN_EID_SUPP_RATES = 1,
1030        WLAN_EID_FH_PARAMS = 2,
1031        WLAN_EID_DS_PARAMS = 3,
1032        WLAN_EID_CF_PARAMS = 4,
1033        WLAN_EID_TIM = 5,
1034        WLAN_EID_IBSS_PARAMS = 6,
1035        WLAN_EID_CHALLENGE = 16,
1036        /* 802.11d */
1037        WLAN_EID_COUNTRY = 7,
1038        WLAN_EID_HP_PARAMS = 8,
1039        WLAN_EID_HP_TABLE = 9,
1040        WLAN_EID_REQUEST = 10,
1041        /* 802.11e */
1042        WLAN_EID_QBSS_LOAD = 11,
1043        WLAN_EID_EDCA_PARAM_SET = 12,
1044        WLAN_EID_TSPEC = 13,
1045        WLAN_EID_TCLAS = 14,
1046        WLAN_EID_SCHEDULE = 15,
1047        WLAN_EID_TS_DELAY = 43,
1048        WLAN_EID_TCLAS_PROCESSING = 44,
1049        WLAN_EID_QOS_CAPA = 46,
1050        /* 802.11s
1051         *
1052         * All mesh EID numbers are pending IEEE 802.11 ANA approval.
1053         * The numbers have been incremented from those suggested in
1054         * 802.11s/D2.0 so that MESH_CONFIG does not conflict with
1055         * EXT_SUPP_RATES.
1056         */
1057        WLAN_EID_MESH_CONFIG = 51,
1058        WLAN_EID_MESH_ID = 52,
1059        WLAN_EID_PEER_LINK = 55,
1060        WLAN_EID_PREQ = 68,
1061        WLAN_EID_PREP = 69,
1062        WLAN_EID_PERR = 70,
1063        /* 802.11h */
1064        WLAN_EID_PWR_CONSTRAINT = 32,
1065        WLAN_EID_PWR_CAPABILITY = 33,
1066        WLAN_EID_TPC_REQUEST = 34,
1067        WLAN_EID_TPC_REPORT = 35,
1068        WLAN_EID_SUPPORTED_CHANNELS = 36,
1069        WLAN_EID_CHANNEL_SWITCH = 37,
1070        WLAN_EID_MEASURE_REQUEST = 38,
1071        WLAN_EID_MEASURE_REPORT = 39,
1072        WLAN_EID_QUIET = 40,
1073        WLAN_EID_IBSS_DFS = 41,
1074        /* 802.11g */
1075        WLAN_EID_ERP_INFO = 42,
1076        WLAN_EID_EXT_SUPP_RATES = 50,
1077        /* 802.11n */
1078        WLAN_EID_HT_CAPABILITY = 45,
1079        WLAN_EID_HT_INFORMATION = 61,
1080        /* 802.11i */
1081        WLAN_EID_RSN = 48,
1082        WLAN_EID_TIMEOUT_INTERVAL = 56,
1083        WLAN_EID_MMIE = 76 /* 802.11w */,
1084        WLAN_EID_WPA = 221,
1085        WLAN_EID_GENERIC = 221,
1086        WLAN_EID_VENDOR_SPECIFIC = 221,
1087        WLAN_EID_QOS_PARAMETER = 222
1088};
1089
1090/* Action category code */
1091enum ieee80211_category {
1092        WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1093        WLAN_CATEGORY_QOS = 1,
1094        WLAN_CATEGORY_DLS = 2,
1095        WLAN_CATEGORY_BACK = 3,
1096        WLAN_CATEGORY_PUBLIC = 4,
1097        WLAN_CATEGORY_HT = 7,
1098        WLAN_CATEGORY_SA_QUERY = 8,
1099        WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1100        WLAN_CATEGORY_WMM = 17,
1101        WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1102        WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1103};
1104
1105/* SPECTRUM_MGMT action code */
1106enum ieee80211_spectrum_mgmt_actioncode {
1107        WLAN_ACTION_SPCT_MSR_REQ = 0,
1108        WLAN_ACTION_SPCT_MSR_RPRT = 1,
1109        WLAN_ACTION_SPCT_TPC_REQ = 2,
1110        WLAN_ACTION_SPCT_TPC_RPRT = 3,
1111        WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1112};
1113
1114/* Security key length */
1115enum ieee80211_key_len {
1116        WLAN_KEY_LEN_WEP40 = 5,
1117        WLAN_KEY_LEN_WEP104 = 13,
1118        WLAN_KEY_LEN_CCMP = 16,
1119        WLAN_KEY_LEN_TKIP = 32,
1120        WLAN_KEY_LEN_AES_CMAC = 16,
1121};
1122
1123/*
1124 * IEEE 802.11-2007 7.3.2.9 Country information element
1125 *
1126 * Minimum length is 8 octets, ie len must be evenly
1127 * divisible by 2
1128 */
1129
1130/* Although the spec says 8 I'm seeing 6 in practice */
1131#define IEEE80211_COUNTRY_IE_MIN_LEN    6
1132
1133/*
1134 * For regulatory extension stuff see IEEE 802.11-2007
1135 * Annex I (page 1141) and Annex J (page 1147). Also
1136 * review 7.3.2.9.
1137 *
1138 * When dot11RegulatoryClassesRequired is true and the
1139 * first_channel/reg_extension_id is >= 201 then the IE
1140 * compromises of the 'ext' struct represented below:
1141 *
1142 *  - Regulatory extension ID - when generating IE this just needs
1143 *    to be monotonically increasing for each triplet passed in
1144 *    the IE
1145 *  - Regulatory class - index into set of rules
1146 *  - Coverage class - index into air propagation time (Table 7-27),
1147 *    in microseconds, you can compute the air propagation time from
1148 *    the index by multiplying by 3, so index 10 yields a propagation
1149 *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1150 *    yet. A value of 0 inicates air propagation of <= 1 us.
1151 *
1152 *  See also Table I.2 for Emission limit sets and table
1153 *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1154 *  a reg_class to an emission limit set and behavior limit set.
1155 */
1156#define IEEE80211_COUNTRY_EXTENSION_ID 201
1157
1158/*
1159 *  Channels numbers in the IE must be monotonically increasing
1160 *  if dot11RegulatoryClassesRequired is not true.
1161 *
1162 *  If dot11RegulatoryClassesRequired is true consecutive
1163 *  subband triplets following a regulatory triplet shall
1164 *  have monotonically increasing first_channel number fields.
1165 *
1166 *  Channel numbers shall not overlap.
1167 *
1168 *  Note that max_power is signed.
1169 */
1170struct ieee80211_country_ie_triplet {
1171        union {
1172                struct {
1173                        u8 first_channel;
1174                        u8 num_channels;
1175                        s8 max_power;
1176                } __attribute__ ((packed)) chans;
1177                struct {
1178                        u8 reg_extension_id;
1179                        u8 reg_class;
1180                        u8 coverage_class;
1181                } __attribute__ ((packed)) ext;
1182        };
1183} __attribute__ ((packed));
1184
1185enum ieee80211_timeout_interval_type {
1186        WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1187        WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1188        WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1189};
1190
1191/* BACK action code */
1192enum ieee80211_back_actioncode {
1193        WLAN_ACTION_ADDBA_REQ = 0,
1194        WLAN_ACTION_ADDBA_RESP = 1,
1195        WLAN_ACTION_DELBA = 2,
1196};
1197
1198/* BACK (block-ack) parties */
1199enum ieee80211_back_parties {
1200        WLAN_BACK_RECIPIENT = 0,
1201        WLAN_BACK_INITIATOR = 1,
1202        WLAN_BACK_TIMER = 2,
1203};
1204
1205/* SA Query action */
1206enum ieee80211_sa_query_action {
1207        WLAN_ACTION_SA_QUERY_REQUEST = 0,
1208        WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1209};
1210
1211
1212/* A-MSDU 802.11n */
1213#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
1214
1215/* cipher suite selectors */
1216#define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1217#define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1218#define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1219/* reserved:                            0x000FAC03 */
1220#define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1221#define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1222#define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1223
1224/* AKM suite selectors */
1225#define WLAN_AKM_SUITE_8021X            0x000FAC01
1226#define WLAN_AKM_SUITE_PSK              0x000FAC02
1227
1228#define WLAN_MAX_KEY_LEN                32
1229
1230/**
1231 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1232 * @hdr: the frame
1233 *
1234 * The qos ctrl bytes come after the frame_control, duration, seq_num
1235 * and 3 or 4 addresses of length ETH_ALEN.
1236 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1237 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1238 */
1239static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1240{
1241        if (ieee80211_has_a4(hdr->frame_control))
1242                return (u8 *)hdr + 30;
1243        else
1244                return (u8 *)hdr + 24;
1245}
1246
1247/**
1248 * ieee80211_get_SA - get pointer to SA
1249 * @hdr: the frame
1250 *
1251 * Given an 802.11 frame, this function returns the offset
1252 * to the source address (SA). It does not verify that the
1253 * header is long enough to contain the address, and the
1254 * header must be long enough to contain the frame control
1255 * field.
1256 */
1257static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1258{
1259        if (ieee80211_has_a4(hdr->frame_control))
1260                return hdr->addr4;
1261        if (ieee80211_has_fromds(hdr->frame_control))
1262                return hdr->addr3;
1263        return hdr->addr2;
1264}
1265
1266/**
1267 * ieee80211_get_DA - get pointer to DA
1268 * @hdr: the frame
1269 *
1270 * Given an 802.11 frame, this function returns the offset
1271 * to the destination address (DA). It does not verify that
1272 * the header is long enough to contain the address, and the
1273 * header must be long enough to contain the frame control
1274 * field.
1275 */
1276static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1277{
1278        if (ieee80211_has_tods(hdr->frame_control))
1279                return hdr->addr3;
1280        else
1281                return hdr->addr1;
1282}
1283
1284/**
1285 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1286 * @hdr: the frame (buffer must include at least the first octet of payload)
1287 */
1288static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1289{
1290        if (ieee80211_is_disassoc(hdr->frame_control) ||
1291            ieee80211_is_deauth(hdr->frame_control))
1292                return true;
1293
1294        if (ieee80211_is_action(hdr->frame_control)) {
1295                u8 *category;
1296
1297                /*
1298                 * Action frames, excluding Public Action frames, are Robust
1299                 * Management Frames. However, if we are looking at a Protected
1300                 * frame, skip the check since the data may be encrypted and
1301                 * the frame has already been found to be a Robust Management
1302                 * Frame (by the other end).
1303                 */
1304                if (ieee80211_has_protected(hdr->frame_control))
1305                        return true;
1306                category = ((u8 *) hdr) + 24;
1307                return *category != WLAN_CATEGORY_PUBLIC &&
1308                        *category != WLAN_CATEGORY_HT &&
1309                        *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
1310        }
1311
1312        return false;
1313}
1314
1315/**
1316 * ieee80211_fhss_chan_to_freq - get channel frequency
1317 * @channel: the FHSS channel
1318 *
1319 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1320 * Ref IEEE 802.11-2007 section 14.6
1321 */
1322static inline int ieee80211_fhss_chan_to_freq(int channel)
1323{
1324        if ((channel > 1) && (channel < 96))
1325                return channel + 2400;
1326        else
1327                return -1;
1328}
1329
1330/**
1331 * ieee80211_freq_to_fhss_chan - get channel
1332 * @freq: the channels frequency
1333 *
1334 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1335 * Ref IEEE 802.11-2007 section 14.6
1336 */
1337static inline int ieee80211_freq_to_fhss_chan(int freq)
1338{
1339        if ((freq > 2401) && (freq < 2496))
1340                return freq - 2400;
1341        else
1342                return -1;
1343}
1344
1345/**
1346 * ieee80211_dsss_chan_to_freq - get channel center frequency
1347 * @channel: the DSSS channel
1348 *
1349 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1350 * Ref IEEE 802.11-2007 section 15.6
1351 */
1352static inline int ieee80211_dsss_chan_to_freq(int channel)
1353{
1354        if ((channel > 0) && (channel < 14))
1355                return 2407 + (channel * 5);
1356        else if (channel == 14)
1357                return 2484;
1358        else
1359                return -1;
1360}
1361
1362/**
1363 * ieee80211_freq_to_dsss_chan - get channel
1364 * @freq: the frequency
1365 *
1366 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1367 * Ref IEEE 802.11-2007 section 15.6
1368 *
1369 * This routine selects the channel with the closest center frequency.
1370 */
1371static inline int ieee80211_freq_to_dsss_chan(int freq)
1372{
1373        if ((freq >= 2410) && (freq < 2475))
1374                return (freq - 2405) / 5;
1375        else if ((freq >= 2482) && (freq < 2487))
1376                return 14;
1377        else
1378                return -1;
1379}
1380
1381/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1382 * Ref IEEE 802.11-2007 section 18.4.6.2
1383 *
1384 * The channels and frequencies are the same as those defined for DSSS
1385 */
1386#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1387#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1388
1389/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1390 * Ref IEEE 802.11-2007 section 19.4.2
1391 */
1392#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1393#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1394
1395/**
1396 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1397 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1398 * @channel: the OFDM channel
1399 *
1400 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1401 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1402 */
1403static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1404{
1405        if ((channel > 0) && (channel <= 200) &&
1406            (s_freq >= 4000))
1407                return s_freq + (channel * 5);
1408        else
1409                return -1;
1410}
1411
1412/**
1413 * ieee80211_freq_to_ofdm_channel - get channel
1414 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1415 * @freq: the frequency
1416 *
1417 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1418 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1419 *
1420 * This routine selects the channel with the closest center frequency.
1421 */
1422static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1423{
1424        if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1425            (s_freq >= 4000))
1426                return (freq + 2 - s_freq) / 5;
1427        else
1428                return -1;
1429}
1430
1431/**
1432 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1433 * @tu: the TUs
1434 */
1435static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1436{
1437        return 1024 * tu;
1438}
1439
1440/**
1441 * ieee80211_check_tim - check if AID bit is set in TIM
1442 * @tim: the TIM IE
1443 * @tim_len: length of the TIM IE
1444 * @aid: the AID to look for
1445 */
1446static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1447                                       u8 tim_len, u16 aid)
1448{
1449        u8 mask;
1450        u8 index, indexn1, indexn2;
1451
1452        if (unlikely(!tim || tim_len < sizeof(*tim)))
1453                return false;
1454
1455        aid &= 0x3fff;
1456        index = aid / 8;
1457        mask  = 1 << (aid & 7);
1458
1459        indexn1 = tim->bitmap_ctrl & 0xfe;
1460        indexn2 = tim_len + indexn1 - 4;
1461
1462        if (index < indexn1 || index > indexn2)
1463                return false;
1464
1465        index -= indexn1;
1466
1467        return !!(tim->virtual_map[index] & mask);
1468}
1469
1470#endif /* LINUX_IEEE80211_H */
1471