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
 119#define IEEE80211_QOS_CTL_LEN           2
 120/* 1d tag mask */
 121#define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 122/* TID mask */
 123#define IEEE80211_QOS_CTL_TID_MASK              0x000f
 124/* EOSP */
 125#define IEEE80211_QOS_CTL_EOSP                  0x0010
 126/* ACK policy */
 127#define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 128#define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 129#define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 130#define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 131#define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 132/* A-MSDU 802.11n */
 133#define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 134/* Mesh Control 802.11s */
 135#define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 136
 137/* U-APSD queue for WMM IEs sent by AP */
 138#define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 139#define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 140
 141/* U-APSD queues for WMM IEs sent by STA */
 142#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 143#define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 144#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 145#define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 146#define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 147
 148/* U-APSD max SP length for WMM IEs sent by STA */
 149#define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 150#define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 151#define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 152#define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 153#define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 154#define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 155
 156#define IEEE80211_HT_CTL_LEN            4
 157
 158struct ieee80211_hdr {
 159        __le16 frame_control;
 160        __le16 duration_id;
 161        u8 addr1[6];
 162        u8 addr2[6];
 163        u8 addr3[6];
 164        __le16 seq_ctrl;
 165        u8 addr4[6];
 166} __attribute__ ((packed));
 167
 168struct ieee80211_hdr_3addr {
 169        __le16 frame_control;
 170        __le16 duration_id;
 171        u8 addr1[6];
 172        u8 addr2[6];
 173        u8 addr3[6];
 174        __le16 seq_ctrl;
 175} __attribute__ ((packed));
 176
 177struct ieee80211_qos_hdr {
 178        __le16 frame_control;
 179        __le16 duration_id;
 180        u8 addr1[6];
 181        u8 addr2[6];
 182        u8 addr3[6];
 183        __le16 seq_ctrl;
 184        __le16 qos_ctrl;
 185} __attribute__ ((packed));
 186
 187/**
 188 * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 189 * @fc: frame control bytes in little-endian byteorder
 190 */
 191static inline int ieee80211_has_tods(__le16 fc)
 192{
 193        return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 194}
 195
 196/**
 197 * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 198 * @fc: frame control bytes in little-endian byteorder
 199 */
 200static inline int ieee80211_has_fromds(__le16 fc)
 201{
 202        return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 203}
 204
 205/**
 206 * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 207 * @fc: frame control bytes in little-endian byteorder
 208 */
 209static inline int ieee80211_has_a4(__le16 fc)
 210{
 211        __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 212        return (fc & tmp) == tmp;
 213}
 214
 215/**
 216 * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 217 * @fc: frame control bytes in little-endian byteorder
 218 */
 219static inline int ieee80211_has_morefrags(__le16 fc)
 220{
 221        return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 222}
 223
 224/**
 225 * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 226 * @fc: frame control bytes in little-endian byteorder
 227 */
 228static inline int ieee80211_has_retry(__le16 fc)
 229{
 230        return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 231}
 232
 233/**
 234 * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 235 * @fc: frame control bytes in little-endian byteorder
 236 */
 237static inline int ieee80211_has_pm(__le16 fc)
 238{
 239        return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 240}
 241
 242/**
 243 * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 244 * @fc: frame control bytes in little-endian byteorder
 245 */
 246static inline int ieee80211_has_moredata(__le16 fc)
 247{
 248        return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 249}
 250
 251/**
 252 * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 253 * @fc: frame control bytes in little-endian byteorder
 254 */
 255static inline int ieee80211_has_protected(__le16 fc)
 256{
 257        return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 258}
 259
 260/**
 261 * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 262 * @fc: frame control bytes in little-endian byteorder
 263 */
 264static inline int ieee80211_has_order(__le16 fc)
 265{
 266        return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 267}
 268
 269/**
 270 * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 271 * @fc: frame control bytes in little-endian byteorder
 272 */
 273static inline int ieee80211_is_mgmt(__le16 fc)
 274{
 275        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 276               cpu_to_le16(IEEE80211_FTYPE_MGMT);
 277}
 278
 279/**
 280 * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 281 * @fc: frame control bytes in little-endian byteorder
 282 */
 283static inline int ieee80211_is_ctl(__le16 fc)
 284{
 285        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 286               cpu_to_le16(IEEE80211_FTYPE_CTL);
 287}
 288
 289/**
 290 * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 291 * @fc: frame control bytes in little-endian byteorder
 292 */
 293static inline int ieee80211_is_data(__le16 fc)
 294{
 295        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 296               cpu_to_le16(IEEE80211_FTYPE_DATA);
 297}
 298
 299/**
 300 * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 301 * @fc: frame control bytes in little-endian byteorder
 302 */
 303static inline int ieee80211_is_data_qos(__le16 fc)
 304{
 305        /*
 306         * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 307         * to check the one bit
 308         */
 309        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 310               cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 311}
 312
 313/**
 314 * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 315 * @fc: frame control bytes in little-endian byteorder
 316 */
 317static inline int ieee80211_is_data_present(__le16 fc)
 318{
 319        /*
 320         * mask with 0x40 and test that that bit is clear to only return true
 321         * for the data-containing substypes.
 322         */
 323        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 324               cpu_to_le16(IEEE80211_FTYPE_DATA);
 325}
 326
 327/**
 328 * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 329 * @fc: frame control bytes in little-endian byteorder
 330 */
 331static inline int ieee80211_is_assoc_req(__le16 fc)
 332{
 333        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 334               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 335}
 336
 337/**
 338 * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 339 * @fc: frame control bytes in little-endian byteorder
 340 */
 341static inline int ieee80211_is_assoc_resp(__le16 fc)
 342{
 343        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 344               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 345}
 346
 347/**
 348 * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 349 * @fc: frame control bytes in little-endian byteorder
 350 */
 351static inline int ieee80211_is_reassoc_req(__le16 fc)
 352{
 353        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 354               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 355}
 356
 357/**
 358 * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 359 * @fc: frame control bytes in little-endian byteorder
 360 */
 361static inline int ieee80211_is_reassoc_resp(__le16 fc)
 362{
 363        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 364               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 365}
 366
 367/**
 368 * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 369 * @fc: frame control bytes in little-endian byteorder
 370 */
 371static inline int ieee80211_is_probe_req(__le16 fc)
 372{
 373        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 374               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 375}
 376
 377/**
 378 * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 379 * @fc: frame control bytes in little-endian byteorder
 380 */
 381static inline int ieee80211_is_probe_resp(__le16 fc)
 382{
 383        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 384               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 385}
 386
 387/**
 388 * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 389 * @fc: frame control bytes in little-endian byteorder
 390 */
 391static inline int ieee80211_is_beacon(__le16 fc)
 392{
 393        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 394               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 395}
 396
 397/**
 398 * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 399 * @fc: frame control bytes in little-endian byteorder
 400 */
 401static inline int ieee80211_is_atim(__le16 fc)
 402{
 403        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 404               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 405}
 406
 407/**
 408 * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 409 * @fc: frame control bytes in little-endian byteorder
 410 */
 411static inline int ieee80211_is_disassoc(__le16 fc)
 412{
 413        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 414               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 415}
 416
 417/**
 418 * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 419 * @fc: frame control bytes in little-endian byteorder
 420 */
 421static inline int ieee80211_is_auth(__le16 fc)
 422{
 423        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 424               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 425}
 426
 427/**
 428 * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 429 * @fc: frame control bytes in little-endian byteorder
 430 */
 431static inline int ieee80211_is_deauth(__le16 fc)
 432{
 433        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 434               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 435}
 436
 437/**
 438 * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 439 * @fc: frame control bytes in little-endian byteorder
 440 */
 441static inline int ieee80211_is_action(__le16 fc)
 442{
 443        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 444               cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 445}
 446
 447/**
 448 * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 449 * @fc: frame control bytes in little-endian byteorder
 450 */
 451static inline int ieee80211_is_back_req(__le16 fc)
 452{
 453        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 454               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 455}
 456
 457/**
 458 * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 459 * @fc: frame control bytes in little-endian byteorder
 460 */
 461static inline int ieee80211_is_back(__le16 fc)
 462{
 463        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 464               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 465}
 466
 467/**
 468 * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 469 * @fc: frame control bytes in little-endian byteorder
 470 */
 471static inline int ieee80211_is_pspoll(__le16 fc)
 472{
 473        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 474               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 475}
 476
 477/**
 478 * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 479 * @fc: frame control bytes in little-endian byteorder
 480 */
 481static inline int ieee80211_is_rts(__le16 fc)
 482{
 483        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 484               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 485}
 486
 487/**
 488 * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 489 * @fc: frame control bytes in little-endian byteorder
 490 */
 491static inline int ieee80211_is_cts(__le16 fc)
 492{
 493        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 494               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 495}
 496
 497/**
 498 * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 499 * @fc: frame control bytes in little-endian byteorder
 500 */
 501static inline int ieee80211_is_ack(__le16 fc)
 502{
 503        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 504               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 505}
 506
 507/**
 508 * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 509 * @fc: frame control bytes in little-endian byteorder
 510 */
 511static inline int ieee80211_is_cfend(__le16 fc)
 512{
 513        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 514               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 515}
 516
 517/**
 518 * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 519 * @fc: frame control bytes in little-endian byteorder
 520 */
 521static inline int ieee80211_is_cfendack(__le16 fc)
 522{
 523        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 524               cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 525}
 526
 527/**
 528 * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 529 * @fc: frame control bytes in little-endian byteorder
 530 */
 531static inline int ieee80211_is_nullfunc(__le16 fc)
 532{
 533        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 534               cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 535}
 536
 537/**
 538 * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 539 * @fc: frame control bytes in little-endian byteorder
 540 */
 541static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 542{
 543        return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 544               cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 545}
 546
 547/**
 548 * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 549 * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 550 */
 551static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 552{
 553        return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 554}
 555
 556struct ieee80211s_hdr {
 557        u8 flags;
 558        u8 ttl;
 559        __le32 seqnum;
 560        u8 eaddr1[6];
 561        u8 eaddr2[6];
 562} __attribute__ ((packed));
 563
 564/* Mesh flags */
 565#define MESH_FLAGS_AE_A4        0x1
 566#define MESH_FLAGS_AE_A5_A6     0x2
 567#define MESH_FLAGS_AE           0x3
 568#define MESH_FLAGS_PS_DEEP      0x4
 569
 570/**
 571 * struct ieee80211_quiet_ie
 572 *
 573 * This structure refers to "Quiet information element"
 574 */
 575struct ieee80211_quiet_ie {
 576        u8 count;
 577        u8 period;
 578        __le16 duration;
 579        __le16 offset;
 580} __attribute__ ((packed));
 581
 582/**
 583 * struct ieee80211_msrment_ie
 584 *
 585 * This structure refers to "Measurement Request/Report information element"
 586 */
 587struct ieee80211_msrment_ie {
 588        u8 token;
 589        u8 mode;
 590        u8 type;
 591        u8 request[0];
 592} __attribute__ ((packed));
 593
 594/**
 595 * struct ieee80211_channel_sw_ie
 596 *
 597 * This structure refers to "Channel Switch Announcement information element"
 598 */
 599struct ieee80211_channel_sw_ie {
 600        u8 mode;
 601        u8 new_ch_num;
 602        u8 count;
 603} __attribute__ ((packed));
 604
 605/**
 606 * struct ieee80211_tim
 607 *
 608 * This structure refers to "Traffic Indication Map information element"
 609 */
 610struct ieee80211_tim_ie {
 611        u8 dtim_count;
 612        u8 dtim_period;
 613        u8 bitmap_ctrl;
 614        /* variable size: 1 - 251 bytes */
 615        u8 virtual_map[1];
 616} __attribute__ ((packed));
 617
 618/**
 619 * struct ieee80211_meshconf_ie
 620 *
 621 * This structure refers to "Mesh Configuration information element"
 622 */
 623struct ieee80211_meshconf_ie {
 624        u8 meshconf_psel;
 625        u8 meshconf_pmetric;
 626        u8 meshconf_congest;
 627        u8 meshconf_synch;
 628        u8 meshconf_auth;
 629        u8 meshconf_form;
 630        u8 meshconf_cap;
 631} __attribute__ ((packed));
 632
 633/**
 634 * struct ieee80211_rann_ie
 635 *
 636 * This structure refers to "Root Announcement information element"
 637 */
 638struct ieee80211_rann_ie {
 639        u8 rann_flags;
 640        u8 rann_hopcount;
 641        u8 rann_ttl;
 642        u8 rann_addr[6];
 643        u32 rann_seq;
 644        u32 rann_interval;
 645        u32 rann_metric;
 646} __attribute__ ((packed));
 647
 648enum ieee80211_rann_flags {
 649        RANN_FLAG_IS_GATE = 1 << 0,
 650};
 651
 652#define WLAN_SA_QUERY_TR_ID_LEN 2
 653
 654struct ieee80211_mgmt {
 655        __le16 frame_control;
 656        __le16 duration;
 657        u8 da[6];
 658        u8 sa[6];
 659        u8 bssid[6];
 660        __le16 seq_ctrl;
 661        union {
 662                struct {
 663                        __le16 auth_alg;
 664                        __le16 auth_transaction;
 665                        __le16 status_code;
 666                        /* possibly followed by Challenge text */
 667                        u8 variable[0];
 668                } __attribute__ ((packed)) auth;
 669                struct {
 670                        __le16 reason_code;
 671                } __attribute__ ((packed)) deauth;
 672                struct {
 673                        __le16 capab_info;
 674                        __le16 listen_interval;
 675                        /* followed by SSID and Supported rates */
 676                        u8 variable[0];
 677                } __attribute__ ((packed)) assoc_req;
 678                struct {
 679                        __le16 capab_info;
 680                        __le16 status_code;
 681                        __le16 aid;
 682                        /* followed by Supported rates */
 683                        u8 variable[0];
 684                } __attribute__ ((packed)) assoc_resp, reassoc_resp;
 685                struct {
 686                        __le16 capab_info;
 687                        __le16 listen_interval;
 688                        u8 current_ap[6];
 689                        /* followed by SSID and Supported rates */
 690                        u8 variable[0];
 691                } __attribute__ ((packed)) reassoc_req;
 692                struct {
 693                        __le16 reason_code;
 694                } __attribute__ ((packed)) disassoc;
 695                struct {
 696                        __le64 timestamp;
 697                        __le16 beacon_int;
 698                        __le16 capab_info;
 699                        /* followed by some of SSID, Supported rates,
 700                         * FH Params, DS Params, CF Params, IBSS Params, TIM */
 701                        u8 variable[0];
 702                } __attribute__ ((packed)) beacon;
 703                struct {
 704                        /* only variable items: SSID, Supported rates */
 705                        u8 variable[0];
 706                } __attribute__ ((packed)) probe_req;
 707                struct {
 708                        __le64 timestamp;
 709                        __le16 beacon_int;
 710                        __le16 capab_info;
 711                        /* followed by some of SSID, Supported rates,
 712                         * FH Params, DS Params, CF Params, IBSS Params */
 713                        u8 variable[0];
 714                } __attribute__ ((packed)) probe_resp;
 715                struct {
 716                        u8 category;
 717                        union {
 718                                struct {
 719                                        u8 action_code;
 720                                        u8 dialog_token;
 721                                        u8 status_code;
 722                                        u8 variable[0];
 723                                } __attribute__ ((packed)) wme_action;
 724                                struct{
 725                                        u8 action_code;
 726                                        u8 element_id;
 727                                        u8 length;
 728                                        struct ieee80211_channel_sw_ie sw_elem;
 729                                } __attribute__((packed)) chan_switch;
 730                                struct{
 731                                        u8 action_code;
 732                                        u8 dialog_token;
 733                                        u8 element_id;
 734                                        u8 length;
 735                                        struct ieee80211_msrment_ie msr_elem;
 736                                } __attribute__((packed)) measurement;
 737                                struct{
 738                                        u8 action_code;
 739                                        u8 dialog_token;
 740                                        __le16 capab;
 741                                        __le16 timeout;
 742                                        __le16 start_seq_num;
 743                                } __attribute__((packed)) addba_req;
 744                                struct{
 745                                        u8 action_code;
 746                                        u8 dialog_token;
 747                                        __le16 status;
 748                                        __le16 capab;
 749                                        __le16 timeout;
 750                                } __attribute__((packed)) addba_resp;
 751                                struct{
 752                                        u8 action_code;
 753                                        __le16 params;
 754                                        __le16 reason_code;
 755                                } __attribute__((packed)) delba;
 756                                struct {
 757                                        u8 action_code;
 758                                        u8 variable[0];
 759                                } __attribute__((packed)) self_prot;
 760                                struct{
 761                                        u8 action_code;
 762                                        u8 variable[0];
 763                                } __attribute__((packed)) mesh_action;
 764                                struct {
 765                                        u8 action;
 766                                        u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 767                                } __attribute__ ((packed)) sa_query;
 768                                struct {
 769                                        u8 action;
 770                                        u8 smps_control;
 771                                } __attribute__ ((packed)) ht_smps;
 772                                struct {
 773                                        u8 action_code;
 774                                        u8 dialog_token;
 775                                        __le16 capability;
 776                                        u8 variable[0];
 777                                } __packed tdls_discover_resp;
 778                        } u;
 779                } __attribute__ ((packed)) action;
 780        } u;
 781} __attribute__ ((packed));
 782
 783/* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 784#define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 785
 786/* mgmt header + 1 byte category code */
 787#define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 788
 789
 790/* Management MIC information element (IEEE 802.11w) */
 791struct ieee80211_mmie {
 792        u8 element_id;
 793        u8 length;
 794        __le16 key_id;
 795        u8 sequence_number[6];
 796        u8 mic[8];
 797} __attribute__ ((packed));
 798
 799struct ieee80211_vendor_ie {
 800        u8 element_id;
 801        u8 len;
 802        u8 oui[3];
 803        u8 oui_type;
 804} __packed;
 805
 806/* Control frames */
 807struct ieee80211_rts {
 808        __le16 frame_control;
 809        __le16 duration;
 810        u8 ra[6];
 811        u8 ta[6];
 812} __attribute__ ((packed));
 813
 814struct ieee80211_cts {
 815        __le16 frame_control;
 816        __le16 duration;
 817        u8 ra[6];
 818} __attribute__ ((packed));
 819
 820struct ieee80211_pspoll {
 821        __le16 frame_control;
 822        __le16 aid;
 823        u8 bssid[6];
 824        u8 ta[6];
 825} __attribute__ ((packed));
 826
 827/* TDLS */
 828
 829/* Link-id information element */
 830struct ieee80211_tdls_lnkie {
 831        u8 ie_type; /* Link Identifier IE */
 832        u8 ie_len;
 833        u8 bssid[6];
 834        u8 init_sta[6];
 835        u8 resp_sta[6];
 836} __packed;
 837
 838struct ieee80211_tdls_data {
 839        u8 da[6];
 840        u8 sa[6];
 841        __be16 ether_type;
 842        u8 payload_type;
 843        u8 category;
 844        u8 action_code;
 845        union {
 846                struct {
 847                        u8 dialog_token;
 848                        __le16 capability;
 849                        u8 variable[0];
 850                } __packed setup_req;
 851                struct {
 852                        __le16 status_code;
 853                        u8 dialog_token;
 854                        __le16 capability;
 855                        u8 variable[0];
 856                } __packed setup_resp;
 857                struct {
 858                        __le16 status_code;
 859                        u8 dialog_token;
 860                        u8 variable[0];
 861                } __packed setup_cfm;
 862                struct {
 863                        __le16 reason_code;
 864                        u8 variable[0];
 865                } __packed teardown;
 866                struct {
 867                        u8 dialog_token;
 868                        u8 variable[0];
 869                } __packed discover_req;
 870        } u;
 871} __packed;
 872
 873/**
 874 * struct ieee80211_bar - HT Block Ack Request
 875 *
 876 * This structure refers to "HT BlockAckReq" as
 877 * described in 802.11n draft section 7.2.1.7.1
 878 */
 879struct ieee80211_bar {
 880        __le16 frame_control;
 881        __le16 duration;
 882        __u8 ra[6];
 883        __u8 ta[6];
 884        __le16 control;
 885        __le16 start_seq_num;
 886} __attribute__((packed));
 887
 888/* 802.11 BAR control masks */
 889#define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
 890#define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
 891#define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
 892#define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
 893#define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
 894
 895#define IEEE80211_HT_MCS_MASK_LEN               10
 896
 897/**
 898 * struct ieee80211_mcs_info - MCS information
 899 * @rx_mask: RX mask
 900 * @rx_highest: highest supported RX rate. If set represents
 901 *      the highest supported RX data rate in units of 1 Mbps.
 902 *      If this field is 0 this value should not be used to
 903 *      consider the highest RX data rate supported.
 904 * @tx_params: TX parameters
 905 */
 906struct ieee80211_mcs_info {
 907        u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
 908        __le16 rx_highest;
 909        u8 tx_params;
 910        u8 reserved[3];
 911} __attribute__((packed));
 912
 913/* 802.11n HT capability MSC set */
 914#define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
 915#define IEEE80211_HT_MCS_TX_DEFINED             0x01
 916#define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
 917/* value 0 == 1 stream etc */
 918#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
 919#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
 920#define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
 921#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
 922
 923/*
 924 * 802.11n D5.0 20.3.5 / 20.6 says:
 925 * - indices 0 to 7 and 32 are single spatial stream
 926 * - 8 to 31 are multiple spatial streams using equal modulation
 927 *   [8..15 for two streams, 16..23 for three and 24..31 for four]
 928 * - remainder are multiple spatial streams using unequal modulation
 929 */
 930#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
 931#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
 932        (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
 933
 934/**
 935 * struct ieee80211_ht_cap - HT capabilities
 936 *
 937 * This structure is the "HT capabilities element" as
 938 * described in 802.11n D5.0 7.3.2.57
 939 */
 940struct ieee80211_ht_cap {
 941        __le16 cap_info;
 942        u8 ampdu_params_info;
 943
 944        /* 16 bytes MCS information */
 945        struct ieee80211_mcs_info mcs;
 946
 947        __le16 extended_ht_cap_info;
 948        __le32 tx_BF_cap_info;
 949        u8 antenna_selection_info;
 950} __attribute__ ((packed));
 951
 952/* 802.11n HT capabilities masks (for cap_info) */
 953#define IEEE80211_HT_CAP_LDPC_CODING            0x0001
 954#define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
 955#define IEEE80211_HT_CAP_SM_PS                  0x000C
 956#define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
 957#define IEEE80211_HT_CAP_GRN_FLD                0x0010
 958#define IEEE80211_HT_CAP_SGI_20                 0x0020
 959#define IEEE80211_HT_CAP_SGI_40                 0x0040
 960#define IEEE80211_HT_CAP_TX_STBC                0x0080
 961#define IEEE80211_HT_CAP_RX_STBC                0x0300
 962#define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
 963#define IEEE80211_HT_CAP_DELAY_BA               0x0400
 964#define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
 965#define IEEE80211_HT_CAP_DSSSCCK40              0x1000
 966#define IEEE80211_HT_CAP_RESERVED               0x2000
 967#define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
 968#define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
 969
 970/* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
 971#define IEEE80211_HT_EXT_CAP_PCO                0x0001
 972#define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
 973#define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
 974#define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
 975#define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
 976#define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
 977#define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
 978
 979/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
 980#define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
 981#define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
 982#define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
 983
 984/*
 985 * Maximum length of AMPDU that the STA can receive.
 986 * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
 987 */
 988enum ieee80211_max_ampdu_length_exp {
 989        IEEE80211_HT_MAX_AMPDU_8K = 0,
 990        IEEE80211_HT_MAX_AMPDU_16K = 1,
 991        IEEE80211_HT_MAX_AMPDU_32K = 2,
 992        IEEE80211_HT_MAX_AMPDU_64K = 3
 993};
 994
 995#define IEEE80211_HT_MAX_AMPDU_FACTOR 13
 996
 997/* Minimum MPDU start spacing */
 998enum ieee80211_min_mpdu_spacing {
 999        IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1000        IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */

1001        IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1002        IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1003        IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1004        IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1005        IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1006        IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1007};
1008
1009/**
1010 * struct ieee80211_ht_info - HT information
1011 *
1012 * This structure is the "HT information element" as
1013 * described in 802.11n D5.0 7.3.2.58
1014 */
1015struct ieee80211_ht_info {
1016        u8 control_chan;
1017        u8 ht_param;
1018        __le16 operation_mode;
1019        __le16 stbc_param;
1020        u8 basic_set[16];
1021} __attribute__ ((packed));
1022
1023/* for ht_param */
1024#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1025#define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1026#define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1027#define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1028#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1029#define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1030#define IEEE80211_HT_PARAM_SPSMP_SUPPORT                0x10
1031#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN           0xE0
1032
1033/* for operation_mode */
1034#define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1035#define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1036#define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1037#define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1038#define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1039#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1040#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1041
1042/* for stbc_param */
1043#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1044#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1045#define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1046#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1047#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1048#define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1049
1050
1051/* block-ack parameters */
1052#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1053#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1054#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1055#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1056#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1057
1058/*
1059 * A-PMDU buffer sizes
1060 * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1061 */
1062#define IEEE80211_MIN_AMPDU_BUF 0x8
1063#define IEEE80211_MAX_AMPDU_BUF 0x40
1064
1065
1066/* Spatial Multiplexing Power Save Modes (for capability) */
1067#define WLAN_HT_CAP_SM_PS_STATIC        0
1068#define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1069#define WLAN_HT_CAP_SM_PS_INVALID       2
1070#define WLAN_HT_CAP_SM_PS_DISABLED      3
1071
1072/* for SM power control field lower two bits */
1073#define WLAN_HT_SMPS_CONTROL_DISABLED   0
1074#define WLAN_HT_SMPS_CONTROL_STATIC     1
1075#define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1076
1077/* Authentication algorithms */
1078#define WLAN_AUTH_OPEN 0
1079#define WLAN_AUTH_SHARED_KEY 1
1080#define WLAN_AUTH_FT 2
1081#define WLAN_AUTH_SAE 3
1082#define WLAN_AUTH_LEAP 128
1083
1084#define WLAN_AUTH_CHALLENGE_LEN 128
1085
1086#define WLAN_CAPABILITY_ESS             (1<<0)
1087#define WLAN_CAPABILITY_IBSS            (1<<1)
1088
1089/*
1090 * A mesh STA sets the ESS and IBSS capability bits to zero.
1091 * however, this holds true for p2p probe responses (in the p2p_find
1092 * phase) as well.
1093 */
1094#define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1095        (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1096
1097#define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1098#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1099#define WLAN_CAPABILITY_PRIVACY         (1<<4)
1100#define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1101#define WLAN_CAPABILITY_PBCC            (1<<6)
1102#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1103
1104/* 802.11h */
1105#define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1106#define WLAN_CAPABILITY_QOS             (1<<9)
1107#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1108#define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1109/* measurement */
1110#define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1111#define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1112#define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1113
1114#define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1115#define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1116#define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1117
1118
1119/* 802.11g ERP information element */
1120#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1121#define WLAN_ERP_USE_PROTECTION (1<<1)
1122#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1123
1124/* WLAN_ERP_BARKER_PREAMBLE values */
1125enum {
1126        WLAN_ERP_PREAMBLE_SHORT = 0,
1127        WLAN_ERP_PREAMBLE_LONG = 1,
1128};
1129
1130/* Status codes */
1131enum ieee80211_statuscode {
1132        WLAN_STATUS_SUCCESS = 0,
1133        WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1134        WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1135        WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1136        WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1137        WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1138        WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1139        WLAN_STATUS_CHALLENGE_FAIL = 15,
1140        WLAN_STATUS_AUTH_TIMEOUT = 16,
1141        WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1142        WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1143        /* 802.11b */
1144        WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1145        WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1146        WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1147        /* 802.11h */
1148        WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1149        WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1150        WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1151        /* 802.11g */
1152        WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1153        WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1154        /* 802.11w */
1155        WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1156        WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1157        /* 802.11i */
1158        WLAN_STATUS_INVALID_IE = 40,
1159        WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1160        WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1161        WLAN_STATUS_INVALID_AKMP = 43,
1162        WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1163        WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1164        WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1165        /* 802.11e */
1166        WLAN_STATUS_UNSPECIFIED_QOS = 32,
1167        WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1168        WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1169        WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1170        WLAN_STATUS_REQUEST_DECLINED = 37,
1171        WLAN_STATUS_INVALID_QOS_PARAM = 38,
1172        WLAN_STATUS_CHANGE_TSPEC = 39,
1173        WLAN_STATUS_WAIT_TS_DELAY = 47,
1174        WLAN_STATUS_NO_DIRECT_LINK = 48,
1175        WLAN_STATUS_STA_NOT_PRESENT = 49,
1176        WLAN_STATUS_STA_NOT_QSTA = 50,
1177        /* 802.11s */
1178        WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1179        WLAN_STATUS_FCG_NOT_SUPP = 78,
1180        WLAN_STATUS_STA_NO_TBTT = 78,
1181};
1182
1183
1184/* Reason codes */
1185enum ieee80211_reasoncode {
1186        WLAN_REASON_UNSPECIFIED = 1,
1187        WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1188        WLAN_REASON_DEAUTH_LEAVING = 3,
1189        WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1190        WLAN_REASON_DISASSOC_AP_BUSY = 5,
1191        WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1192        WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1193        WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1194        WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1195        /* 802.11h */
1196        WLAN_REASON_DISASSOC_BAD_POWER = 10,
1197        WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1198        /* 802.11i */
1199        WLAN_REASON_INVALID_IE = 13,
1200        WLAN_REASON_MIC_FAILURE = 14,
1201        WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1202        WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1203        WLAN_REASON_IE_DIFFERENT = 17,
1204        WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1205        WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1206        WLAN_REASON_INVALID_AKMP = 20,
1207        WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1208        WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1209        WLAN_REASON_IEEE8021X_FAILED = 23,
1210        WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1211        /* 802.11e */
1212        WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1213        WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1214        WLAN_REASON_DISASSOC_LOW_ACK = 34,
1215        WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1216        WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1217        WLAN_REASON_QSTA_NOT_USE = 37,
1218        WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1219        WLAN_REASON_QSTA_TIMEOUT = 39,
1220        WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1221        /* 802.11s */
1222        WLAN_REASON_MESH_PEER_CANCELED = 52,
1223        WLAN_REASON_MESH_MAX_PEERS = 53,
1224        WLAN_REASON_MESH_CONFIG = 54,
1225        WLAN_REASON_MESH_CLOSE = 55,
1226        WLAN_REASON_MESH_MAX_RETRIES = 56,
1227        WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1228        WLAN_REASON_MESH_INVALID_GTK = 58,
1229        WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1230        WLAN_REASON_MESH_INVALID_SECURITY = 60,
1231        WLAN_REASON_MESH_PATH_ERROR = 61,
1232        WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1233        WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1234        WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1235        WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1236        WLAN_REASON_MESH_CHAN = 66,
1237};
1238
1239
1240/* Information Element IDs */
1241enum ieee80211_eid {
1242        WLAN_EID_SSID = 0,
1243        WLAN_EID_SUPP_RATES = 1,
1244        WLAN_EID_FH_PARAMS = 2,
1245        WLAN_EID_DS_PARAMS = 3,
1246        WLAN_EID_CF_PARAMS = 4,
1247        WLAN_EID_TIM = 5,
1248        WLAN_EID_IBSS_PARAMS = 6,
1249        WLAN_EID_CHALLENGE = 16,
1250
1251        WLAN_EID_COUNTRY = 7,
1252        WLAN_EID_HP_PARAMS = 8,
1253        WLAN_EID_HP_TABLE = 9,
1254        WLAN_EID_REQUEST = 10,
1255
1256        WLAN_EID_QBSS_LOAD = 11,
1257        WLAN_EID_EDCA_PARAM_SET = 12,
1258        WLAN_EID_TSPEC = 13,
1259        WLAN_EID_TCLAS = 14,
1260        WLAN_EID_SCHEDULE = 15,
1261        WLAN_EID_TS_DELAY = 43,
1262        WLAN_EID_TCLAS_PROCESSING = 44,
1263        WLAN_EID_QOS_CAPA = 46,
1264        /* 802.11z */
1265        WLAN_EID_LINK_ID = 101,
1266        /* 802.11s */
1267        WLAN_EID_MESH_CONFIG = 113,
1268        WLAN_EID_MESH_ID = 114,
1269        WLAN_EID_LINK_METRIC_REPORT = 115,
1270        WLAN_EID_CONGESTION_NOTIFICATION = 116,
1271        WLAN_EID_PEER_MGMT = 117,
1272        WLAN_EID_CHAN_SWITCH_PARAM = 118,
1273        WLAN_EID_MESH_AWAKE_WINDOW = 119,
1274        WLAN_EID_BEACON_TIMING = 120,
1275        WLAN_EID_MCCAOP_SETUP_REQ = 121,
1276        WLAN_EID_MCCAOP_SETUP_RESP = 122,
1277        WLAN_EID_MCCAOP_ADVERT = 123,
1278        WLAN_EID_MCCAOP_TEARDOWN = 124,
1279        WLAN_EID_GANN = 125,
1280        WLAN_EID_RANN = 126,
1281        WLAN_EID_PREQ = 130,
1282        WLAN_EID_PREP = 131,
1283        WLAN_EID_PERR = 132,
1284        WLAN_EID_PXU = 137,
1285        WLAN_EID_PXUC = 138,
1286        WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1287        WLAN_EID_MIC = 140,
1288
1289        WLAN_EID_PWR_CONSTRAINT = 32,
1290        WLAN_EID_PWR_CAPABILITY = 33,
1291        WLAN_EID_TPC_REQUEST = 34,
1292        WLAN_EID_TPC_REPORT = 35,
1293        WLAN_EID_SUPPORTED_CHANNELS = 36,
1294        WLAN_EID_CHANNEL_SWITCH = 37,
1295        WLAN_EID_MEASURE_REQUEST = 38,
1296        WLAN_EID_MEASURE_REPORT = 39,
1297        WLAN_EID_QUIET = 40,
1298        WLAN_EID_IBSS_DFS = 41,
1299
1300        WLAN_EID_ERP_INFO = 42,
1301        WLAN_EID_EXT_SUPP_RATES = 50,
1302
1303        WLAN_EID_HT_CAPABILITY = 45,
1304        WLAN_EID_HT_INFORMATION = 61,
1305
1306        WLAN_EID_RSN = 48,
1307        WLAN_EID_MMIE = 76,
1308        WLAN_EID_WPA = 221,
1309        WLAN_EID_GENERIC = 221,
1310        WLAN_EID_VENDOR_SPECIFIC = 221,
1311        WLAN_EID_QOS_PARAMETER = 222,
1312
1313        WLAN_EID_AP_CHAN_REPORT = 51,
1314        WLAN_EID_NEIGHBOR_REPORT = 52,
1315        WLAN_EID_RCPI = 53,
1316        WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1317        WLAN_EID_ANTENNA_INFO = 64,
1318        WLAN_EID_RSNI = 65,
1319        WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1320        WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1321        WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1322        WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1323        WLAN_EID_MULTIPLE_BSSID = 71,
1324        WLAN_EID_BSS_COEX_2040 = 72,
1325        WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1326        WLAN_EID_EXT_CAPABILITY = 127,
1327
1328        WLAN_EID_MOBILITY_DOMAIN = 54,
1329        WLAN_EID_FAST_BSS_TRANSITION = 55,
1330        WLAN_EID_TIMEOUT_INTERVAL = 56,
1331        WLAN_EID_RIC_DATA = 57,
1332        WLAN_EID_RIC_DESCRIPTOR = 75,
1333
1334        WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1335        WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1336        WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1337};
1338
1339/* Action category code */
1340enum ieee80211_category {
1341        WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1342        WLAN_CATEGORY_QOS = 1,
1343        WLAN_CATEGORY_DLS = 2,
1344        WLAN_CATEGORY_BACK = 3,
1345        WLAN_CATEGORY_PUBLIC = 4,
1346        WLAN_CATEGORY_HT = 7,
1347        WLAN_CATEGORY_SA_QUERY = 8,
1348        WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1349        WLAN_CATEGORY_TDLS = 12,
1350        WLAN_CATEGORY_MESH_ACTION = 13,
1351        WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1352        WLAN_CATEGORY_SELF_PROTECTED = 15,
1353        WLAN_CATEGORY_WMM = 17,
1354        WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1355        WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1356};
1357
1358/* SPECTRUM_MGMT action code */
1359enum ieee80211_spectrum_mgmt_actioncode {
1360        WLAN_ACTION_SPCT_MSR_REQ = 0,
1361        WLAN_ACTION_SPCT_MSR_RPRT = 1,
1362        WLAN_ACTION_SPCT_TPC_REQ = 2,
1363        WLAN_ACTION_SPCT_TPC_RPRT = 3,
1364        WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1365};
1366
1367/* HT action codes */
1368enum ieee80211_ht_actioncode {
1369        WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1370        WLAN_HT_ACTION_SMPS = 1,
1371        WLAN_HT_ACTION_PSMP = 2,
1372        WLAN_HT_ACTION_PCO_PHASE = 3,
1373        WLAN_HT_ACTION_CSI = 4,
1374        WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1375        WLAN_HT_ACTION_COMPRESSED_BF = 6,
1376        WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1377};
1378
1379/* Self Protected Action codes */
1380enum ieee80211_self_protected_actioncode {
1381        WLAN_SP_RESERVED = 0,
1382        WLAN_SP_MESH_PEERING_OPEN = 1,
1383        WLAN_SP_MESH_PEERING_CONFIRM = 2,
1384        WLAN_SP_MESH_PEERING_CLOSE = 3,
1385        WLAN_SP_MGK_INFORM = 4,
1386        WLAN_SP_MGK_ACK = 5,
1387};
1388
1389/* Mesh action codes */
1390enum ieee80211_mesh_actioncode {
1391        WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1392        WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1393        WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1394        WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1395        WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1396        WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1397        WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1398        WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1399        WLAN_MESH_ACTION_MCCA_TEARDOWN,
1400        WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1401        WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1402};
1403
1404/* Security key length */
1405enum ieee80211_key_len {
1406        WLAN_KEY_LEN_WEP40 = 5,
1407        WLAN_KEY_LEN_WEP104 = 13,
1408        WLAN_KEY_LEN_CCMP = 16,
1409        WLAN_KEY_LEN_TKIP = 32,
1410        WLAN_KEY_LEN_AES_CMAC = 16,
1411};
1412
1413/* Public action codes */
1414enum ieee80211_pub_actioncode {
1415        WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1416};
1417
1418/* TDLS action codes */
1419enum ieee80211_tdls_actioncode {
1420        WLAN_TDLS_SETUP_REQUEST = 0,
1421        WLAN_TDLS_SETUP_RESPONSE = 1,
1422        WLAN_TDLS_SETUP_CONFIRM = 2,
1423        WLAN_TDLS_TEARDOWN = 3,
1424        WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1425        WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1426        WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1427        WLAN_TDLS_PEER_PSM_REQUEST = 7,
1428        WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1429        WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1430        WLAN_TDLS_DISCOVERY_REQUEST = 10,
1431};
1432
1433/*
1434 * TDLS capabililites to be enabled in the 5th byte of the
1435 * @WLAN_EID_EXT_CAPABILITY information element
1436 */
1437#define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1438#define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1439
1440/* TDLS specific payload type in the LLC/SNAP header */
1441#define WLAN_TDLS_SNAP_RFTYPE   0x2
1442
1443/**
1444 * enum - mesh path selection protocol identifier
1445 *
1446 * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1447 * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1448 * be specified in a vendor specific information element
1449 */
1450enum {
1451        IEEE80211_PATH_PROTOCOL_HWMP = 0,
1452        IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1453};
1454
1455/**
1456 * enum - mesh path selection metric identifier
1457 *
1458 * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1459 * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1460 * specified in a vendor specific information element
1461 */
1462enum {
1463        IEEE80211_PATH_METRIC_AIRTIME = 0,
1464        IEEE80211_PATH_METRIC_VENDOR = 255,
1465};
1466
1467
1468/*
1469 * IEEE 802.11-2007 7.3.2.9 Country information element
1470 *
1471 * Minimum length is 8 octets, ie len must be evenly
1472 * divisible by 2
1473 */
1474
1475/* Although the spec says 8 I'm seeing 6 in practice */
1476#define IEEE80211_COUNTRY_IE_MIN_LEN    6
1477
1478/* The Country String field of the element shall be 3 octets in length */
1479#define IEEE80211_COUNTRY_STRING_LEN    3
1480
1481/*
1482 * For regulatory extension stuff see IEEE 802.11-2007
1483 * Annex I (page 1141) and Annex J (page 1147). Also
1484 * review 7.3.2.9.
1485 *
1486 * When dot11RegulatoryClassesRequired is true and the
1487 * first_channel/reg_extension_id is >= 201 then the IE
1488 * compromises of the 'ext' struct represented below:
1489 *
1490 *  - Regulatory extension ID - when generating IE this just needs
1491 *    to be monotonically increasing for each triplet passed in
1492 *    the IE
1493 *  - Regulatory class - index into set of rules
1494 *  - Coverage class - index into air propagation time (Table 7-27),
1495 *    in microseconds, you can compute the air propagation time from
1496 *    the index by multiplying by 3, so index 10 yields a propagation
1497 *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1498 *    yet. A value of 0 inicates air propagation of <= 1 us.
1499 *
1500 *  See also Table I.2 for Emission limit sets and table
1501 *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1502 *  a reg_class to an emission limit set and behavior limit set.
1503 */
1504#define IEEE80211_COUNTRY_EXTENSION_ID 201
1505
1506/*
1507 *  Channels numbers in the IE must be monotonically increasing
1508 *  if dot11RegulatoryClassesRequired is not true.
1509 *
1510 *  If dot11RegulatoryClassesRequired is true consecutive
1511 *  subband triplets following a regulatory triplet shall
1512 *  have monotonically increasing first_channel number fields.
1513 *
1514 *  Channel numbers shall not overlap.
1515 *
1516 *  Note that max_power is signed.
1517 */
1518struct ieee80211_country_ie_triplet {
1519        union {
1520                struct {
1521                        u8 first_channel;
1522                        u8 num_channels;
1523                        s8 max_power;
1524                } __attribute__ ((packed)) chans;
1525                struct {
1526                        u8 reg_extension_id;
1527                        u8 reg_class;
1528                        u8 coverage_class;
1529                } __attribute__ ((packed)) ext;
1530        };
1531} __attribute__ ((packed));
1532
1533enum ieee80211_timeout_interval_type {
1534        WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1535        WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1536        WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1537};
1538
1539/* BACK action code */
1540enum ieee80211_back_actioncode {
1541        WLAN_ACTION_ADDBA_REQ = 0,
1542        WLAN_ACTION_ADDBA_RESP = 1,
1543        WLAN_ACTION_DELBA = 2,
1544};
1545
1546/* BACK (block-ack) parties */
1547enum ieee80211_back_parties {
1548        WLAN_BACK_RECIPIENT = 0,
1549        WLAN_BACK_INITIATOR = 1,
1550};
1551
1552/* SA Query action */
1553enum ieee80211_sa_query_action {
1554        WLAN_ACTION_SA_QUERY_REQUEST = 0,
1555        WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1556};
1557
1558
1559/* cipher suite selectors */
1560#define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1561#define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1562#define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1563/* reserved:                            0x000FAC03 */
1564#define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1565#define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1566#define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1567
1568#define WLAN_CIPHER_SUITE_SMS4          0x00147201
1569
1570/* AKM suite selectors */
1571#define WLAN_AKM_SUITE_8021X            0x000FAC01
1572#define WLAN_AKM_SUITE_PSK              0x000FAC02
1573#define WLAN_AKM_SUITE_SAE                      0x000FAC08
1574#define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
1575
1576#define WLAN_MAX_KEY_LEN                32
1577
1578#define WLAN_PMKID_LEN                  16
1579
1580#define WLAN_OUI_WFA                    0x506f9a
1581#define WLAN_OUI_TYPE_WFA_P2P           9
1582
1583/*
1584 * WMM/802.11e Tspec Element
1585 */
1586#define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
1587#define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
1588
1589enum ieee80211_tspec_status_code {
1590        IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1591        IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1592};
1593
1594struct ieee80211_tspec_ie {
1595        u8 element_id;
1596        u8 len;
1597        u8 oui[3];
1598        u8 oui_type;
1599        u8 oui_subtype;
1600        u8 version;
1601        __le16 tsinfo;
1602        u8 tsinfo_resvd;
1603        __le16 nominal_msdu;
1604        __le16 max_msdu;
1605        __le32 min_service_int;
1606        __le32 max_service_int;
1607        __le32 inactivity_int;
1608        __le32 suspension_int;
1609        __le32 service_start_time;
1610        __le32 min_data_rate;
1611        __le32 mean_data_rate;
1612        __le32 peak_data_rate;
1613        __le32 max_burst_size;
1614        __le32 delay_bound;
1615        __le32 min_phy_rate;
1616        __le16 sba;
1617        __le16 medium_time;
1618} __packed;
1619
1620/**
1621 * ieee80211_get_qos_ctl - get pointer to qos control bytes
1622 * @hdr: the frame
1623 *
1624 * The qos ctrl bytes come after the frame_control, duration, seq_num
1625 * and 3 or 4 addresses of length ETH_ALEN.
1626 * 3 addr: 2 + 2 + 2 + 3*6 = 24
1627 * 4 addr: 2 + 2 + 2 + 4*6 = 30
1628 */
1629static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1630{
1631        if (ieee80211_has_a4(hdr->frame_control))
1632                return (u8 *)hdr + 30;
1633        else
1634                return (u8 *)hdr + 24;
1635}
1636
1637/**
1638 * ieee80211_get_SA - get pointer to SA
1639 * @hdr: the frame
1640 *
1641 * Given an 802.11 frame, this function returns the offset
1642 * to the source address (SA). It does not verify that the
1643 * header is long enough to contain the address, and the
1644 * header must be long enough to contain the frame control
1645 * field.
1646 */
1647static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1648{
1649        if (ieee80211_has_a4(hdr->frame_control))
1650                return hdr->addr4;
1651        if (ieee80211_has_fromds(hdr->frame_control))
1652                return hdr->addr3;
1653        return hdr->addr2;
1654}
1655
1656/**
1657 * ieee80211_get_DA - get pointer to DA
1658 * @hdr: the frame
1659 *
1660 * Given an 802.11 frame, this function returns the offset
1661 * to the destination address (DA). It does not verify that
1662 * the header is long enough to contain the address, and the
1663 * header must be long enough to contain the frame control
1664 * field.
1665 */
1666static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1667{
1668        if (ieee80211_has_tods(hdr->frame_control))
1669                return hdr->addr3;
1670        else
1671                return hdr->addr1;
1672}
1673
1674/**
1675 * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1676 * @hdr: the frame (buffer must include at least the first octet of payload)
1677 */
1678static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1679{
1680        if (ieee80211_is_disassoc(hdr->frame_control) ||
1681            ieee80211_is_deauth(hdr->frame_control))
1682                return true;
1683
1684        if (ieee80211_is_action(hdr->frame_control)) {
1685                u8 *category;
1686
1687                /*
1688                 * Action frames, excluding Public Action frames, are Robust
1689                 * Management Frames. However, if we are looking at a Protected
1690                 * frame, skip the check since the data may be encrypted and
1691                 * the frame has already been found to be a Robust Management
1692                 * Frame (by the other end).
1693                 */
1694                if (ieee80211_has_protected(hdr->frame_control))
1695                        return true;
1696                category = ((u8 *) hdr) + 24;
1697                return *category != WLAN_CATEGORY_PUBLIC &&
1698                        *category != WLAN_CATEGORY_HT &&
1699                        *category != WLAN_CATEGORY_SELF_PROTECTED &&
1700                        *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
1701        }
1702
1703        return false;
1704}
1705
1706/**
1707 * ieee80211_is_public_action - check if frame is a public action frame
1708 * @hdr: the frame
1709 * @len: length of the frame
1710 */
1711static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
1712                                              size_t len)
1713{
1714        struct ieee80211_mgmt *mgmt = (void *)hdr;
1715
1716        if (len < IEEE80211_MIN_ACTION_SIZE)
1717                return false;
1718        if (!ieee80211_is_action(hdr->frame_control))
1719                return false;
1720        return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
1721}
1722
1723/**
1724 * ieee80211_fhss_chan_to_freq - get channel frequency
1725 * @channel: the FHSS channel
1726 *
1727 * Convert IEEE802.11 FHSS channel to frequency (MHz)
1728 * Ref IEEE 802.11-2007 section 14.6
1729 */
1730static inline int ieee80211_fhss_chan_to_freq(int channel)
1731{
1732        if ((channel > 1) && (channel < 96))
1733                return channel + 2400;
1734        else
1735                return -1;
1736}
1737
1738/**
1739 * ieee80211_freq_to_fhss_chan - get channel
1740 * @freq: the channels frequency
1741 *
1742 * Convert frequency (MHz) to IEEE802.11 FHSS channel
1743 * Ref IEEE 802.11-2007 section 14.6
1744 */
1745static inline int ieee80211_freq_to_fhss_chan(int freq)
1746{
1747        if ((freq > 2401) && (freq < 2496))
1748                return freq - 2400;
1749        else
1750                return -1;
1751}
1752
1753/**
1754 * ieee80211_dsss_chan_to_freq - get channel center frequency
1755 * @channel: the DSSS channel
1756 *
1757 * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
1758 * Ref IEEE 802.11-2007 section 15.6
1759 */
1760static inline int ieee80211_dsss_chan_to_freq(int channel)
1761{
1762        if ((channel > 0) && (channel < 14))
1763                return 2407 + (channel * 5);
1764        else if (channel == 14)
1765                return 2484;
1766        else
1767                return -1;
1768}
1769
1770/**
1771 * ieee80211_freq_to_dsss_chan - get channel
1772 * @freq: the frequency
1773 *
1774 * Convert frequency (MHz) to IEEE802.11 DSSS channel
1775 * Ref IEEE 802.11-2007 section 15.6
1776 *
1777 * This routine selects the channel with the closest center frequency.
1778 */
1779static inline int ieee80211_freq_to_dsss_chan(int freq)
1780{
1781        if ((freq >= 2410) && (freq < 2475))
1782                return (freq - 2405) / 5;
1783        else if ((freq >= 2482) && (freq < 2487))
1784                return 14;
1785        else
1786                return -1;
1787}
1788
1789/* Convert IEEE802.11 HR DSSS channel to frequency (MHz) and back
1790 * Ref IEEE 802.11-2007 section 18.4.6.2
1791 *
1792 * The channels and frequencies are the same as those defined for DSSS
1793 */
1794#define ieee80211_hr_chan_to_freq(chan) ieee80211_dsss_chan_to_freq(chan)
1795#define ieee80211_freq_to_hr_chan(freq) ieee80211_freq_to_dsss_chan(freq)
1796
1797/* Convert IEEE802.11 ERP channel to frequency (MHz) and back
1798 * Ref IEEE 802.11-2007 section 19.4.2
1799 */
1800#define ieee80211_erp_chan_to_freq(chan) ieee80211_hr_chan_to_freq(chan)
1801#define ieee80211_freq_to_erp_chan(freq) ieee80211_freq_to_hr_chan(freq)
1802
1803/**
1804 * ieee80211_ofdm_chan_to_freq - get channel center frequency
1805 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1806 * @channel: the OFDM channel
1807 *
1808 * Convert IEEE802.11 OFDM channel to center frequency (MHz)
1809 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1810 */
1811static inline int ieee80211_ofdm_chan_to_freq(int s_freq, int channel)
1812{
1813        if ((channel > 0) && (channel <= 200) &&
1814            (s_freq >= 4000))
1815                return s_freq + (channel * 5);
1816        else
1817                return -1;
1818}
1819
1820/**
1821 * ieee80211_freq_to_ofdm_channel - get channel
1822 * @s_freq: starting frequency == (dotChannelStartingFactor/2) MHz
1823 * @freq: the frequency
1824 *
1825 * Convert frequency (MHz) to IEEE802.11 OFDM channel
1826 * Ref IEEE 802.11-2007 section 17.3.8.3.2
1827 *
1828 * This routine selects the channel with the closest center frequency.
1829 */
1830static inline int ieee80211_freq_to_ofdm_chan(int s_freq, int freq)
1831{
1832        if ((freq > (s_freq + 2)) && (freq <= (s_freq + 1202)) &&
1833            (s_freq >= 4000))
1834                return (freq + 2 - s_freq) / 5;
1835        else
1836                return -1;
1837}
1838
1839/**
1840 * ieee80211_tu_to_usec - convert time units (TU) to microseconds
1841 * @tu: the TUs
1842 */
1843static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
1844{
1845        return 1024 * tu;
1846}
1847
1848/**
1849 * ieee80211_check_tim - check if AID bit is set in TIM
1850 * @tim: the TIM IE
1851 * @tim_len: length of the TIM IE
1852 * @aid: the AID to look for
1853 */
1854static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
1855                                       u8 tim_len, u16 aid)
1856{
1857        u8 mask;
1858        u8 index, indexn1, indexn2;
1859
1860        if (unlikely(!tim || tim_len < sizeof(*tim)))
1861                return false;
1862
1863        aid &= 0x3fff;
1864        index = aid / 8;
1865        mask  = 1 << (aid & 7);
1866
1867        indexn1 = tim->bitmap_ctrl & 0xfe;
1868        indexn2 = tim_len + indexn1 - 4;
1869
1870        if (index < indexn1 || index > indexn2)
1871                return false;
1872
1873        index -= indexn1;
1874
1875        return !!(tim->virtual_map[index] & mask);
1876}
1877
1878#endif /* LINUX_IEEE80211_H */
1879