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 /*
  19  * DS bit usage
  20  *
  21  * TA = transmitter address
  22  * RA = receiver address
  23  * DA = destination address
  24  * SA = source address
  25  *
  26  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  27  * -----------------------------------------------------------------
  28  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  29  *  0       1       DA      BSSID   SA      -       AP -> STA
  30  *  1       0       BSSID   SA      DA      -       AP <- STA
  31  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  32  */
  33
  34 #define FCS_LEN 4
  35
  36 #define IEEE80211_FCTL_VERS             0x0003
  37 #define IEEE80211_FCTL_FTYPE            0x000c
  38 #define IEEE80211_FCTL_STYPE            0x00f0
  39 #define IEEE80211_FCTL_TODS             0x0100
  40 #define IEEE80211_FCTL_FROMDS           0x0200
  41 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  42 #define IEEE80211_FCTL_RETRY            0x0800
  43 #define IEEE80211_FCTL_PM               0x1000
  44 #define IEEE80211_FCTL_MOREDATA         0x2000
  45 #define IEEE80211_FCTL_PROTECTED        0x4000
  46 #define IEEE80211_FCTL_ORDER            0x8000
  47 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  48
  49 #define IEEE80211_SCTL_FRAG             0x000F
  50 #define IEEE80211_SCTL_SEQ              0xFFF0
  51
  52 #define IEEE80211_FTYPE_MGMT            0x0000
  53 #define IEEE80211_FTYPE_CTL             0x0004
  54 #define IEEE80211_FTYPE_DATA            0x0008
  55 #define IEEE80211_FTYPE_EXT             0x000c
  56
  57 /* management */
  58 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  59 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  60 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  61 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  62 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  63 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  64 #define IEEE80211_STYPE_BEACON          0x0080
  65 #define IEEE80211_STYPE_ATIM            0x0090
  66 #define IEEE80211_STYPE_DISASSOC        0x00A0
  67 #define IEEE80211_STYPE_AUTH            0x00B0
  68 #define IEEE80211_STYPE_DEAUTH          0x00C0
  69 #define IEEE80211_STYPE_ACTION          0x00D0
  70
  71 /* control */
  72 #define IEEE80211_STYPE_CTL_EXT         0x0060
  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 /* extension, added by 802.11ad */
 101 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 102
 103 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 104 #define IEEE80211_CTL_EXT_POLL          0x2000
 105 #define IEEE80211_CTL_EXT_SPR           0x3000
 106 #define IEEE80211_CTL_EXT_GRANT 0x4000
 107 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 108 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 109 #define IEEE80211_CTL_EXT_SSW           0x8000
 110 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 111 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 112
 113
 114 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 115 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 116 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 117
 118 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 119 {
 120         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 121 }
 122
 123 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 124 {
 125         return (sn1 + sn2) & IEEE80211_SN_MASK;
 126 }
 127
 128 static inline u16 ieee80211_sn_inc(u16 sn)
 129 {
 130         return ieee80211_sn_add(sn, 1);
 131 }
 132
 133 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 134 {
 135         return (sn1 - sn2) & IEEE80211_SN_MASK;
 136 }
 137
 138 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 139 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 140
 141 /* miscellaneous IEEE 802.11 constants */
 142 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 143 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 144 #define IEEE80211_MAX_AID               2007
 145 #define IEEE80211_MAX_TIM_LEN           251
 146 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 147    6.2.1.1.2.
 148
 149    802.11e clarifies the figure in section 7.1.2. The frame body is
 150    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 151 #define IEEE80211_MAX_DATA_LEN          2304
 152 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 153 #define IEEE80211_MAX_FRAME_LEN         2352
 154
 155 #define IEEE80211_MAX_SSID_LEN          32
 156
 157 #define IEEE80211_MAX_MESH_ID_LEN       32
 158
 159 #define IEEE80211_NUM_TIDS              16
 160
 161 #define IEEE80211_QOS_CTL_LEN           2
 162 /* 1d tag mask */
 163 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 164 /* TID mask */
 165 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 166 /* EOSP */
 167 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 168 /* ACK policy */
 169 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 170 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 171 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 172 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 173 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 174 /* A-MSDU 802.11n */
 175 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 176 /* Mesh Control 802.11s */
 177 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 178
 179 /* U-APSD queue for WMM IEs sent by AP */
 180 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 181 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 182
 183 /* U-APSD queues for WMM IEs sent by STA */
 184 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 185 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 186 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 187 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 188 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 189
 190 /* U-APSD max SP length for WMM IEs sent by STA */
 191 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 192 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 193 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 194 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 195 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 196 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 197
 198 #define IEEE80211_HT_CTL_LEN            4
 199
 200 struct ieee80211_hdr {
 201         __le16 frame_control;
 202         __le16 duration_id;
 203         u8 addr1[6];
 204         u8 addr2[6];
 205         u8 addr3[6];
 206         __le16 seq_ctrl;
 207         u8 addr4[6];
 208 } __packed __aligned(2);
 209
 210 struct ieee80211_hdr_3addr {
 211         __le16 frame_control;
 212         __le16 duration_id;
 213         u8 addr1[6];
 214         u8 addr2[6];
 215         u8 addr3[6];
 216         __le16 seq_ctrl;
 217 } __packed __aligned(2);
 218
 219 struct ieee80211_qos_hdr {
 220         __le16 frame_control;
 221         __le16 duration_id;
 222         u8 addr1[6];
 223         u8 addr2[6];
 224         u8 addr3[6];
 225         __le16 seq_ctrl;
 226         __le16 qos_ctrl;
 227 } __packed __aligned(2);
 228
 229 /**
 230  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 231  * @fc: frame control bytes in little-endian byteorder
 232  */
 233 static inline int ieee80211_has_tods(__le16 fc)
 234 {
 235         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 236 }
 237
 238 /**
 239  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 240  * @fc: frame control bytes in little-endian byteorder
 241  */
 242 static inline int ieee80211_has_fromds(__le16 fc)
 243 {
 244         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 245 }
 246
 247 /**
 248  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 249  * @fc: frame control bytes in little-endian byteorder
 250  */
 251 static inline int ieee80211_has_a4(__le16 fc)
 252 {
 253         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 254         return (fc & tmp) == tmp;
 255 }
 256
 257 /**
 258  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 259  * @fc: frame control bytes in little-endian byteorder
 260  */
 261 static inline int ieee80211_has_morefrags(__le16 fc)
 262 {
 263         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 264 }
 265
 266 /**
 267  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 268  * @fc: frame control bytes in little-endian byteorder
 269  */
 270 static inline int ieee80211_has_retry(__le16 fc)
 271 {
 272         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 273 }
 274
 275 /**
 276  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 277  * @fc: frame control bytes in little-endian byteorder
 278  */
 279 static inline int ieee80211_has_pm(__le16 fc)
 280 {
 281         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 282 }
 283
 284 /**
 285  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 286  * @fc: frame control bytes in little-endian byteorder
 287  */
 288 static inline int ieee80211_has_moredata(__le16 fc)
 289 {
 290         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 291 }
 292
 293 /**
 294  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 295  * @fc: frame control bytes in little-endian byteorder
 296  */
 297 static inline int ieee80211_has_protected(__le16 fc)
 298 {
 299         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 300 }
 301
 302 /**
 303  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 304  * @fc: frame control bytes in little-endian byteorder
 305  */
 306 static inline int ieee80211_has_order(__le16 fc)
 307 {
 308         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 309 }
 310
 311 /**
 312  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 313  * @fc: frame control bytes in little-endian byteorder
 314  */
 315 static inline int ieee80211_is_mgmt(__le16 fc)
 316 {
 317         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 318                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 319 }
 320
 321 /**
 322  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 323  * @fc: frame control bytes in little-endian byteorder
 324  */
 325 static inline int ieee80211_is_ctl(__le16 fc)
 326 {
 327         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 328                cpu_to_le16(IEEE80211_FTYPE_CTL);
 329 }
 330
 331 /**
 332  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 333  * @fc: frame control bytes in little-endian byteorder
 334  */
 335 static inline int ieee80211_is_data(__le16 fc)
 336 {
 337         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 338                cpu_to_le16(IEEE80211_FTYPE_DATA);
 339 }
 340
 341 /**
 342  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 343  * @fc: frame control bytes in little-endian byteorder
 344  */
 345 static inline int ieee80211_is_data_qos(__le16 fc)
 346 {
 347         /*
 348          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 349          * to check the one bit
 350          */
 351         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 352                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 353 }
 354
 355 /**
 356  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 357  * @fc: frame control bytes in little-endian byteorder
 358  */
 359 static inline int ieee80211_is_data_present(__le16 fc)
 360 {
 361         /*
 362          * mask with 0x40 and test that that bit is clear to only return true
 363          * for the data-containing substypes.
 364          */
 365         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 366                cpu_to_le16(IEEE80211_FTYPE_DATA);
 367 }
 368
 369 /**
 370  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 371  * @fc: frame control bytes in little-endian byteorder
 372  */
 373 static inline int ieee80211_is_assoc_req(__le16 fc)
 374 {
 375         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 376                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 377 }
 378
 379 /**
 380  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 381  * @fc: frame control bytes in little-endian byteorder
 382  */
 383 static inline int ieee80211_is_assoc_resp(__le16 fc)
 384 {
 385         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 386                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 387 }
 388
 389 /**
 390  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 391  * @fc: frame control bytes in little-endian byteorder
 392  */
 393 static inline int ieee80211_is_reassoc_req(__le16 fc)
 394 {
 395         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 396                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 397 }
 398
 399 /**
 400  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 401  * @fc: frame control bytes in little-endian byteorder
 402  */
 403 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 404 {
 405         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 406                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 407 }
 408
 409 /**
 410  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 411  * @fc: frame control bytes in little-endian byteorder
 412  */
 413 static inline int ieee80211_is_probe_req(__le16 fc)
 414 {
 415         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 416                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 417 }
 418
 419 /**
 420  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 421  * @fc: frame control bytes in little-endian byteorder
 422  */
 423 static inline int ieee80211_is_probe_resp(__le16 fc)
 424 {
 425         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 426                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 427 }
 428
 429 /**
 430  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 431  * @fc: frame control bytes in little-endian byteorder
 432  */
 433 static inline int ieee80211_is_beacon(__le16 fc)
 434 {
 435         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 436                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 437 }
 438
 439 /**
 440  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 441  * @fc: frame control bytes in little-endian byteorder
 442  */
 443 static inline int ieee80211_is_atim(__le16 fc)
 444 {
 445         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 446                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 447 }
 448
 449 /**
 450  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 451  * @fc: frame control bytes in little-endian byteorder
 452  */
 453 static inline int ieee80211_is_disassoc(__le16 fc)
 454 {
 455         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 456                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 457 }
 458
 459 /**
 460  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 461  * @fc: frame control bytes in little-endian byteorder
 462  */
 463 static inline int ieee80211_is_auth(__le16 fc)
 464 {
 465         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 466                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 467 }
 468
 469 /**
 470  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 471  * @fc: frame control bytes in little-endian byteorder
 472  */
 473 static inline int ieee80211_is_deauth(__le16 fc)
 474 {
 475         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 476                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 477 }
 478
 479 /**
 480  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 481  * @fc: frame control bytes in little-endian byteorder
 482  */
 483 static inline int ieee80211_is_action(__le16 fc)
 484 {
 485         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 486                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 487 }
 488
 489 /**
 490  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 491  * @fc: frame control bytes in little-endian byteorder
 492  */
 493 static inline int ieee80211_is_back_req(__le16 fc)
 494 {
 495         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 496                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 497 }
 498
 499 /**
 500  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 501  * @fc: frame control bytes in little-endian byteorder
 502  */
 503 static inline int ieee80211_is_back(__le16 fc)
 504 {
 505         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 506                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 507 }
 508
 509 /**
 510  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 511  * @fc: frame control bytes in little-endian byteorder
 512  */
 513 static inline int ieee80211_is_pspoll(__le16 fc)
 514 {
 515         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 516                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 517 }
 518
 519 /**
 520  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 521  * @fc: frame control bytes in little-endian byteorder
 522  */
 523 static inline int ieee80211_is_rts(__le16 fc)
 524 {
 525         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 526                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 527 }
 528
 529 /**
 530  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 531  * @fc: frame control bytes in little-endian byteorder
 532  */
 533 static inline int ieee80211_is_cts(__le16 fc)
 534 {
 535         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 536                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 537 }
 538
 539 /**
 540  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 541  * @fc: frame control bytes in little-endian byteorder
 542  */
 543 static inline int ieee80211_is_ack(__le16 fc)
 544 {
 545         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 546                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 547 }
 548
 549 /**
 550  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 551  * @fc: frame control bytes in little-endian byteorder
 552  */
 553 static inline int ieee80211_is_cfend(__le16 fc)
 554 {
 555         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 556                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 557 }
 558
 559 /**
 560  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 561  * @fc: frame control bytes in little-endian byteorder
 562  */
 563 static inline int ieee80211_is_cfendack(__le16 fc)
 564 {
 565         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 566                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 567 }
 568
 569 /**
 570  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 571  * @fc: frame control bytes in little-endian byteorder
 572  */
 573 static inline int ieee80211_is_nullfunc(__le16 fc)
 574 {
 575         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 576                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 577 }
 578
 579 /**
 580  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 581  * @fc: frame control bytes in little-endian byteorder
 582  */
 583 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 584 {
 585         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 586                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 587 }
 588
 589 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 590 {
 591         unsigned int hdrlen = 24;
 592
 593         if (ieee80211_has_a4(fc))
 594                 hdrlen = 30;
 595
 596         if (ieee80211_is_data_qos(fc)) {
 597                 hdrlen += IEEE80211_QOS_CTL_LEN;
 598                 if (ieee80211_has_order(fc))
 599                         hdrlen += IEEE80211_HT_CTL_LEN;
 600         }
 601
 602         return hdrlen;
 603 }
 604
 605 /**
 606  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 607  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 608  */
 609 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 610 {
 611         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 612 }
 613
 614 struct ieee80211s_hdr {
 615         u8 flags;
 616         u8 ttl;
 617         __le32 seqnum;
 618         u8 eaddr1[6];
 619         u8 eaddr2[6];
 620 } __packed __aligned(2);
 621
 622 /* Mesh flags */
 623 #define MESH_FLAGS_AE_A4        0x1
 624 #define MESH_FLAGS_AE_A5_A6     0x2
 625 #define MESH_FLAGS_AE           0x3
 626 #define MESH_FLAGS_PS_DEEP      0x4
 627
 628 /**
 629  * enum ieee80211_preq_flags - mesh PREQ element flags
 630  *
 631  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 632  */
 633 enum ieee80211_preq_flags {
 634         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 635 };
 636
 637 /**
 638  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 639  *
 640  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 641  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 642  */
 643 enum ieee80211_preq_target_flags {
 644         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 645         IEEE80211_PREQ_USN_FLAG = 1<<2,
 646 };
 647
 648 /**
 649  * struct ieee80211_quiet_ie
 650  *
 651  * This structure refers to "Quiet information element"
 652  */
 653 struct ieee80211_quiet_ie {
 654         u8 count;
 655         u8 period;
 656         __le16 duration;
 657         __le16 offset;
 658 } __packed;
 659
 660 /**
 661  * struct ieee80211_msrment_ie
 662  *
 663  * This structure refers to "Measurement Request/Report information element"
 664  */
 665 struct ieee80211_msrment_ie {
 666         u8 token;
 667         u8 mode;
 668         u8 type;
 669         u8 request[0];
 670 } __packed;
 671
 672 /**
 673  * struct ieee80211_channel_sw_ie
 674  *
 675  * This structure refers to "Channel Switch Announcement information element"
 676  */
 677 struct ieee80211_channel_sw_ie {
 678         u8 mode;
 679         u8 new_ch_num;
 680         u8 count;
 681 } __packed;
 682
 683 /**
 684  * struct ieee80211_tim
 685  *
 686  * This structure refers to "Traffic Indication Map information element"
 687  */
 688 struct ieee80211_tim_ie {
 689         u8 dtim_count;
 690         u8 dtim_period;
 691         u8 bitmap_ctrl;
 692         /* variable size: 1 - 251 bytes */
 693         u8 virtual_map[1];
 694 } __packed;
 695
 696 /**
 697  * struct ieee80211_meshconf_ie
 698  *
 699  * This structure refers to "Mesh Configuration information element"
 700  */
 701 struct ieee80211_meshconf_ie {
 702         u8 meshconf_psel;
 703         u8 meshconf_pmetric;
 704         u8 meshconf_congest;
 705         u8 meshconf_synch;
 706         u8 meshconf_auth;
 707         u8 meshconf_form;
 708         u8 meshconf_cap;
 709 } __packed;
 710
 711 /**
 712  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 713  *
 714  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 715  *      additional mesh peerings with other mesh STAs
 716  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 717  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 718  *      is ongoing
 719  */
 720 enum mesh_config_capab_flags {
 721         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 722         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 723         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 724 };
 725
 726 /**
 727  * struct ieee80211_rann_ie
 728  *
 729  * This structure refers to "Root Announcement information element"
 730  */
 731 struct ieee80211_rann_ie {
 732         u8 rann_flags;
 733         u8 rann_hopcount;
 734         u8 rann_ttl;
 735         u8 rann_addr[6];
 736         __le32 rann_seq;
 737         __le32 rann_interval;
 738         __le32 rann_metric;
 739 } __packed;
 740
 741 enum ieee80211_rann_flags {
 742         RANN_FLAG_IS_GATE = 1 << 0,
 743 };
 744
 745 enum ieee80211_ht_chanwidth_values {
 746         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 747         IEEE80211_HT_CHANWIDTH_ANY = 1,
 748 };
 749
 750 #define WLAN_SA_QUERY_TR_ID_LEN 2
 751
 752 struct ieee80211_mgmt {
 753         __le16 frame_control;
 754         __le16 duration;
 755         u8 da[6];
 756         u8 sa[6];
 757         u8 bssid[6];
 758         __le16 seq_ctrl;
 759         union {
 760                 struct {
 761                         __le16 auth_alg;
 762                         __le16 auth_transaction;
 763                         __le16 status_code;
 764                         /* possibly followed by Challenge text */
 765                         u8 variable[0];
 766                 } __packed auth;
 767                 struct {
 768                         __le16 reason_code;
 769                 } __packed deauth;
 770                 struct {
 771                         __le16 capab_info;
 772                         __le16 listen_interval;
 773                         /* followed by SSID and Supported rates */
 774                         u8 variable[0];
 775                 } __packed assoc_req;
 776                 struct {
 777                         __le16 capab_info;
 778                         __le16 status_code;
 779                         __le16 aid;
 780                         /* followed by Supported rates */
 781                         u8 variable[0];
 782                 } __packed assoc_resp, reassoc_resp;
 783                 struct {
 784                         __le16 capab_info;
 785                         __le16 listen_interval;
 786                         u8 current_ap[6];
 787                         /* followed by SSID and Supported rates */
 788                         u8 variable[0];
 789                 } __packed reassoc_req;
 790                 struct {
 791                         __le16 reason_code;
 792                 } __packed disassoc;
 793                 struct {
 794                         __le64 timestamp;
 795                         __le16 beacon_int;
 796                         __le16 capab_info;
 797                         /* followed by some of SSID, Supported rates,
 798                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 799                         u8 variable[0];
 800                 } __packed beacon;
 801                 struct {
 802                         /* only variable items: SSID, Supported rates */
 803                         u8 variable[0];
 804                 } __packed probe_req;
 805                 struct {
 806                         __le64 timestamp;
 807                         __le16 beacon_int;
 808                         __le16 capab_info;
 809                         /* followed by some of SSID, Supported rates,
 810                          * FH Params, DS Params, CF Params, IBSS Params */
 811                         u8 variable[0];
 812                 } __packed probe_resp;
 813                 struct {
 814                         u8 category;
 815                         union {
 816                                 struct {
 817                                         u8 action_code;
 818                                         u8 dialog_token;
 819                                         u8 status_code;
 820                                         u8 variable[0];
 821                                 } __packed wme_action;
 822                                 struct{
 823                                         u8 action_code;
 824                                         u8 element_id;
 825                                         u8 length;
 826                                         struct ieee80211_channel_sw_ie sw_elem;
 827                                 } __packed chan_switch;
 828                                 struct{
 829                                         u8 action_code;
 830                                         u8 dialog_token;
 831                                         u8 element_id;
 832                                         u8 length;
 833                                         struct ieee80211_msrment_ie msr_elem;
 834                                 } __packed measurement;
 835                                 struct{
 836                                         u8 action_code;
 837                                         u8 dialog_token;
 838                                         __le16 capab;
 839                                         __le16 timeout;
 840                                         __le16 start_seq_num;
 841                                 } __packed addba_req;
 842                                 struct{
 843                                         u8 action_code;
 844                                         u8 dialog_token;
 845                                         __le16 status;
 846                                         __le16 capab;
 847                                         __le16 timeout;
 848                                 } __packed addba_resp;
 849                                 struct{
 850                                         u8 action_code;
 851                                         __le16 params;
 852                                         __le16 reason_code;
 853                                 } __packed delba;
 854                                 struct {
 855                                         u8 action_code;
 856                                         u8 variable[0];
 857                                 } __packed self_prot;
 858                                 struct{
 859                                         u8 action_code;
 860                                         u8 variable[0];
 861                                 } __packed mesh_action;
 862                                 struct {
 863                                         u8 action;
 864                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 865                                 } __packed sa_query;
 866                                 struct {
 867                                         u8 action;
 868                                         u8 smps_control;
 869                                 } __packed ht_smps;
 870                                 struct {
 871                                         u8 action_code;
 872                                         u8 chanwidth;
 873                                 } __packed ht_notify_cw;
 874                                 struct {
 875                                         u8 action_code;
 876                                         u8 dialog_token;
 877                                         __le16 capability;
 878                                         u8 variable[0];
 879                                 } __packed tdls_discover_resp;
 880                         } u;
 881                 } __packed action;
 882         } u;
 883 } __packed __aligned(2);
 884
 885 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 886 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 887
 888 /* mgmt header + 1 byte category code */
 889 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 890
 891
 892 /* Management MIC information element (IEEE 802.11w) */
 893 struct ieee80211_mmie {
 894         u8 element_id;
 895         u8 length;
 896         __le16 key_id;
 897         u8 sequence_number[6];
 898         u8 mic[8];
 899 } __packed;
 900
 901 struct ieee80211_vendor_ie {
 902         u8 element_id;
 903         u8 len;
 904         u8 oui[3];
 905         u8 oui_type;
 906 } __packed;
 907
 908 /* Control frames */
 909 struct ieee80211_rts {
 910         __le16 frame_control;
 911         __le16 duration;
 912         u8 ra[6];
 913         u8 ta[6];
 914 } __packed __aligned(2);
 915
 916 struct ieee80211_cts {
 917         __le16 frame_control;
 918         __le16 duration;
 919         u8 ra[6];
 920 } __packed __aligned(2);
 921
 922 struct ieee80211_pspoll {
 923         __le16 frame_control;
 924         __le16 aid;
 925         u8 bssid[6];
 926         u8 ta[6];
 927 } __packed __aligned(2);
 928
 929 /* TDLS */
 930
 931 /* Link-id information element */
 932 struct ieee80211_tdls_lnkie {
 933         u8 ie_type; /* Link Identifier IE */
 934         u8 ie_len;
 935         u8 bssid[6];
 936         u8 init_sta[6];
 937         u8 resp_sta[6];
 938 } __packed;
 939
 940 struct ieee80211_tdls_data {
 941         u8 da[6];
 942         u8 sa[6];
 943         __be16 ether_type;
 944         u8 payload_type;
 945         u8 category;
 946         u8 action_code;
 947         union {
 948                 struct {
 949                         u8 dialog_token;
 950                         __le16 capability;
 951                         u8 variable[0];
 952                 } __packed setup_req;
 953                 struct {
 954                         __le16 status_code;
 955                         u8 dialog_token;
 956                         __le16 capability;
 957                         u8 variable[0];
 958                 } __packed setup_resp;
 959                 struct {
 960                         __le16 status_code;
 961                         u8 dialog_token;
 962                         u8 variable[0];
 963                 } __packed setup_cfm;
 964                 struct {
 965                         __le16 reason_code;
 966                         u8 variable[0];
 967                 } __packed teardown;
 968                 struct {
 969                         u8 dialog_token;
 970                         u8 variable[0];
 971                 } __packed discover_req;
 972         } u;
 973 } __packed;
 974
 975 /*
 976  * Peer-to-Peer IE attribute related definitions.
 977  */
 978 /**
 979  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
 980  */
 981 enum ieee80211_p2p_attr_id {
 982         IEEE80211_P2P_ATTR_STATUS = 0,
 983         IEEE80211_P2P_ATTR_MINOR_REASON,
 984         IEEE80211_P2P_ATTR_CAPABILITY,
 985         IEEE80211_P2P_ATTR_DEVICE_ID,
 986         IEEE80211_P2P_ATTR_GO_INTENT,
 987         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
 988         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
 989         IEEE80211_P2P_ATTR_GROUP_BSSID,
 990         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
 991         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
 992         IEEE80211_P2P_ATTR_MANAGABILITY,
 993         IEEE80211_P2P_ATTR_CHANNEL_LIST,
 994         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
 995         IEEE80211_P2P_ATTR_DEVICE_INFO,
 996         IEEE80211_P2P_ATTR_GROUP_INFO,
 997         IEEE80211_P2P_ATTR_GROUP_ID,
 998         IEEE80211_P2P_ATTR_INTERFACE,
 999         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1000         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1001         /* 19 - 220: Reserved */
1002         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1003
1004         IEEE80211_P2P_ATTR_MAX
1005 };
1006
1007 /**
1008  * struct ieee80211_bar - HT Block Ack Request
1009  *
1010  * This structure refers to "HT BlockAckReq" as
1011  * described in 802.11n draft section 7.2.1.7.1
1012  */
1013 struct ieee80211_bar {
1014         __le16 frame_control;
1015         __le16 duration;
1016         __u8 ra[6];
1017         __u8 ta[6];
1018         __le16 control;
1019         __le16 start_seq_num;
1020 } __packed __aligned(4);
1021
1022 /* 802.11 BA(R) control masks */
1023 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1024 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1025 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1026 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1027 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1028
1029 /**
1030  * struct ieee80211_ba - HT Block Ack
1031  *
1032  * This structure refers to "HT BlockAck" as
1033  * described in 802.11n draft section 7.2.1.8.1
1034  */
1035 struct ieee80211_ba {
1036         __le16 frame_control;
1037         __le16 duration;
1038         u8 ra[6];
1039         u8 ta[6];
1040         __le16 control;
1041
1042         __le16 start_seq_num;
1043         u8 bitmap[8];
1044 } __packed;
1045
1046 #define IEEE80211_HT_MCS_MASK_LEN               10
1047
1048 /**
1049  * struct ieee80211_mcs_info - MCS information
1050  * @rx_mask: RX mask
1051  * @rx_highest: highest supported RX rate. If set represents
1052  *      the highest supported RX data rate in units of 1 Mbps.
1053  *      If this field is 0 this value should not be used to
1054  *      consider the highest RX data rate supported.
1055  * @tx_params: TX parameters
1056  */
1057 struct ieee80211_mcs_info {
1058         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1059         __le16 rx_highest;
1060         u8 tx_params;
1061         u8 reserved[3];
1062 } __packed;
1063
1064 /* 802.11n HT capability MSC set */
1065 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1066 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1067 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1068 /* value 0 == 1 stream etc */
1069 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1070 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1071 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1072 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1073
1074 /*
1075  * 802.11n D5.0 20.3.5 / 20.6 says:
1076  * - indices 0 to 7 and 32 are single spatial stream
1077  * - 8 to 31 are multiple spatial streams using equal modulation
1078  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1079  * - remainder are multiple spatial streams using unequal modulation
1080  */
1081 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1082 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1083         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1084
1085 /**
1086  * struct ieee80211_ht_cap - HT capabilities
1087  *
1088  * This structure is the "HT capabilities element" as
1089  * described in 802.11n D5.0 7.3.2.57
1090  */
1091 struct ieee80211_ht_cap {
1092         __le16 cap_info;
1093         u8 ampdu_params_info;
1094
1095         /* 16 bytes MCS information */
1096         struct ieee80211_mcs_info mcs;
1097
1098         __le16 extended_ht_cap_info;
1099         __le32 tx_BF_cap_info;
1100         u8 antenna_selection_info;
1101 } __packed;
1102
1103 /* 802.11n HT capabilities masks (for cap_info) */
1104 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1105 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1106 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1107 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1108 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1109 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1110 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1111 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1112 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1113 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1114 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1115 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1116 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1117 #define IEEE80211_HT_CAP_RESERVED               0x2000
1118 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1119 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1120
1121 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1122 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1123 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1124 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1125 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1126 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1127 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1128 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1129
1130 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1131 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1132 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1133 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1134
1135 /*
1136  * Maximum length of AMPDU that the STA can receive.
1137  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1138  */
1139 enum ieee80211_max_ampdu_length_exp {
1140         IEEE80211_HT_MAX_AMPDU_8K = 0,
1141         IEEE80211_HT_MAX_AMPDU_16K = 1,
1142         IEEE80211_HT_MAX_AMPDU_32K = 2,
1143         IEEE80211_HT_MAX_AMPDU_64K = 3
1144 };
1145
1146 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1147
1148 /* Minimum MPDU start spacing */
1149 enum ieee80211_min_mpdu_spacing {
1150         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1151         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1152         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1153         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1154         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1155         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1156         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1157         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1158 };
1159
1160 /**
1161  * struct ieee80211_ht_operation - HT operation IE
1162  *
1163  * This structure is the "HT operation element" as
1164  * described in 802.11n-2009 7.3.2.57
1165  */
1166 struct ieee80211_ht_operation {
1167         u8 primary_chan;
1168         u8 ht_param;
1169         __le16 operation_mode;
1170         __le16 stbc_param;
1171         u8 basic_set[16];
1172 } __packed;
1173
1174 /* for ht_param */
1175 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1176 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1177 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1178 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1179 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1180 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1181
1182 /* for operation_mode */
1183 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1184 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1185 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1186 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1187 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1188 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1189 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1190
1191 /* for stbc_param */
1192 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1193 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1194 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1195 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1196 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1197 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1198
1199
1200 /* block-ack parameters */
1201 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1202 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1203 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1204 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1205 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1206
1207 /*
1208  * A-PMDU buffer sizes
1209  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1210  */
1211 #define IEEE80211_MIN_AMPDU_BUF 0x8
1212 #define IEEE80211_MAX_AMPDU_BUF 0x40
1213
1214
1215 /* Spatial Multiplexing Power Save Modes (for capability) */
1216 #define WLAN_HT_CAP_SM_PS_STATIC        0
1217 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1218 #define WLAN_HT_CAP_SM_PS_INVALID       2
1219 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1220
1221 /* for SM power control field lower two bits */
1222 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1223 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1224 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1225
1226 /**
1227  * struct ieee80211_vht_mcs_info - VHT MCS information
1228  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1229  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1230  *      STA can receive. Rate expressed in units of 1 Mbps.
1231  *      If this field is 0 this value should not be used to
1232  *      consider the highest RX data rate supported.
1233  *      The top 3 bits of this field are reserved.
1234  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1235  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1236  *      STA can transmit. Rate expressed in units of 1 Mbps.
1237  *      If this field is 0 this value should not be used to
1238  *      consider the highest TX data rate supported.
1239  *      The top 3 bits of this field are reserved.
1240  */
1241 struct ieee80211_vht_mcs_info {
1242         __le16 rx_mcs_map;
1243         __le16 rx_highest;
1244         __le16 tx_mcs_map;
1245         __le16 tx_highest;
1246 } __packed;
1247
1248 /**
1249  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1250  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1251  *      number of streams
1252  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1253  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1254  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1255  *
1256  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1257  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1258  * both split into 8 subfields by number of streams. These values indicate
1259  * which MCSes are supported for the number of streams the value appears
1260  * for.
1261  */
1262 enum ieee80211_vht_mcs_support {
1263         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1264         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1265         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1266         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1267 };
1268
1269 /**
1270  * struct ieee80211_vht_cap - VHT capabilities
1271  *
1272  * This structure is the "VHT capabilities element" as
1273  * described in 802.11ac D3.0 8.4.2.160
1274  * @vht_cap_info: VHT capability info
1275  * @supp_mcs: VHT MCS supported rates
1276  */
1277 struct ieee80211_vht_cap {
1278         __le32 vht_cap_info;
1279         struct ieee80211_vht_mcs_info supp_mcs;
1280 } __packed;
1281
1282 /**
1283  * enum ieee80211_vht_chanwidth - VHT channel width
1284  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1285  *      determine the channel width (20 or 40 MHz)
1286  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1287  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1288  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1289  */
1290 enum ieee80211_vht_chanwidth {
1291         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1292         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1293         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1294         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1295 };
1296
1297 /**
1298  * struct ieee80211_vht_operation - VHT operation IE
1299  *
1300  * This structure is the "VHT operation element" as
1301  * described in 802.11ac D3.0 8.4.2.161
1302  * @chan_width: Operating channel width
1303  * @center_freq_seg1_idx: center freq segment 1 index
1304  * @center_freq_seg2_idx: center freq segment 2 index
1305  * @basic_mcs_set: VHT Basic MCS rate set
1306  */
1307 struct ieee80211_vht_operation {
1308         u8 chan_width;
1309         u8 center_freq_seg1_idx;
1310         u8 center_freq_seg2_idx;
1311         __le16 basic_mcs_set;
1312 } __packed;
1313
1314
1315 /* 802.11ac VHT Capabilities */
1316 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1317 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1318 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1319 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1320 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1321 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1322 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1323 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1324 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1325 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1326 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1327 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1328 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1329 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1330 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1331 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX               0x00006000
1332 #define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX                0x00030000
1333 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1334 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1335 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1336 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1337 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1338 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1339                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1340 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1341 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1342 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1343 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1344
1345 /* Authentication algorithms */
1346 #define WLAN_AUTH_OPEN 0
1347 #define WLAN_AUTH_SHARED_KEY 1
1348 #define WLAN_AUTH_FT 2
1349 #define WLAN_AUTH_SAE 3
1350 #define WLAN_AUTH_LEAP 128
1351
1352 #define WLAN_AUTH_CHALLENGE_LEN 128
1353
1354 #define WLAN_CAPABILITY_ESS             (1<<0)
1355 #define WLAN_CAPABILITY_IBSS            (1<<1)
1356
1357 /*
1358  * A mesh STA sets the ESS and IBSS capability bits to zero.
1359  * however, this holds true for p2p probe responses (in the p2p_find
1360  * phase) as well.
1361  */
1362 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1363         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1364
1365 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1366 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1367 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1368 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1369 #define WLAN_CAPABILITY_PBCC            (1<<6)
1370 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1371
1372 /* 802.11h */
1373 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1374 #define WLAN_CAPABILITY_QOS             (1<<9)
1375 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1376 #define WLAN_CAPABILITY_APSD            (1<<11)
1377 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1378 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1379 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1380 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1381
1382 /* DMG (60gHz) 802.11ad */
1383 /* type - bits 0..1 */
1384 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1385 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1386 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1387 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1388
1389 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1390 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1391 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1392 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1393
1394 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1395 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1396
1397 /* measurement */
1398 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1399 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1400 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1401
1402 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1403 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1404 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1405
1406 /* 802.11g ERP information element */
1407 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1408 #define WLAN_ERP_USE_PROTECTION (1<<1)
1409 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1410
1411 /* WLAN_ERP_BARKER_PREAMBLE values */
1412 enum {
1413         WLAN_ERP_PREAMBLE_SHORT = 0,
1414         WLAN_ERP_PREAMBLE_LONG = 1,
1415 };
1416
1417 /* Band ID, 802.11ad #8.4.1.45 */
1418 enum {
1419         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1420         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1421         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1422         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1423         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1424         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1425 };
1426
1427 /* Status codes */
1428 enum ieee80211_statuscode {
1429         WLAN_STATUS_SUCCESS = 0,
1430         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1431         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1432         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1433         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1434         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1435         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1436         WLAN_STATUS_CHALLENGE_FAIL = 15,
1437         WLAN_STATUS_AUTH_TIMEOUT = 16,
1438         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1439         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1440         /* 802.11b */
1441         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1442         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1443         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1444         /* 802.11h */
1445         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1446         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1447         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1448         /* 802.11g */
1449         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1450         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1451         /* 802.11w */
1452         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1453         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1454         /* 802.11i */
1455         WLAN_STATUS_INVALID_IE = 40,
1456         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1457         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1458         WLAN_STATUS_INVALID_AKMP = 43,
1459         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1460         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1461         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1462         /* 802.11e */
1463         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1464         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1465         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1466         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1467         WLAN_STATUS_REQUEST_DECLINED = 37,
1468         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1469         WLAN_STATUS_CHANGE_TSPEC = 39,
1470         WLAN_STATUS_WAIT_TS_DELAY = 47,
1471         WLAN_STATUS_NO_DIRECT_LINK = 48,
1472         WLAN_STATUS_STA_NOT_PRESENT = 49,
1473         WLAN_STATUS_STA_NOT_QSTA = 50,
1474         /* 802.11s */
1475         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1476         WLAN_STATUS_FCG_NOT_SUPP = 78,
1477         WLAN_STATUS_STA_NO_TBTT = 78,
1478         /* 802.11ad */
1479         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1480         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1481         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1482         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1483         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1484         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1485         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1486         WLAN_STATUS_REJECT_DSE_BAND = 96,
1487         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1488         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1489 };
1490
1491
1492 /* Reason codes */
1493 enum ieee80211_reasoncode {
1494         WLAN_REASON_UNSPECIFIED = 1,
1495         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1496         WLAN_REASON_DEAUTH_LEAVING = 3,
1497         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1498         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1499         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1500         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1501         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1502         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1503         /* 802.11h */
1504         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1505         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1506         /* 802.11i */
1507         WLAN_REASON_INVALID_IE = 13,
1508         WLAN_REASON_MIC_FAILURE = 14,
1509         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1510         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1511         WLAN_REASON_IE_DIFFERENT = 17,
1512         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1513         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1514         WLAN_REASON_INVALID_AKMP = 20,
1515         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1516         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1517         WLAN_REASON_IEEE8021X_FAILED = 23,
1518         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1519         /* 802.11e */
1520         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1521         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1522         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1523         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1524         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1525         WLAN_REASON_QSTA_NOT_USE = 37,
1526         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1527         WLAN_REASON_QSTA_TIMEOUT = 39,
1528         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1529         /* 802.11s */
1530         WLAN_REASON_MESH_PEER_CANCELED = 52,
1531         WLAN_REASON_MESH_MAX_PEERS = 53,
1532         WLAN_REASON_MESH_CONFIG = 54,
1533         WLAN_REASON_MESH_CLOSE = 55,
1534         WLAN_REASON_MESH_MAX_RETRIES = 56,
1535         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1536         WLAN_REASON_MESH_INVALID_GTK = 58,
1537         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1538         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1539         WLAN_REASON_MESH_PATH_ERROR = 61,
1540         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1541         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1542         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1543         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1544         WLAN_REASON_MESH_CHAN = 66,
1545 };
1546
1547
1548 /* Information Element IDs */
1549 enum ieee80211_eid {
1550         WLAN_EID_SSID = 0,
1551         WLAN_EID_SUPP_RATES = 1,
1552         WLAN_EID_FH_PARAMS = 2,
1553         WLAN_EID_DS_PARAMS = 3,
1554         WLAN_EID_CF_PARAMS = 4,
1555         WLAN_EID_TIM = 5,
1556         WLAN_EID_IBSS_PARAMS = 6,
1557         WLAN_EID_CHALLENGE = 16,
1558
1559         WLAN_EID_COUNTRY = 7,
1560         WLAN_EID_HP_PARAMS = 8,
1561         WLAN_EID_HP_TABLE = 9,
1562         WLAN_EID_REQUEST = 10,
1563
1564         WLAN_EID_QBSS_LOAD = 11,
1565         WLAN_EID_EDCA_PARAM_SET = 12,
1566         WLAN_EID_TSPEC = 13,
1567         WLAN_EID_TCLAS = 14,
1568         WLAN_EID_SCHEDULE = 15,
1569         WLAN_EID_TS_DELAY = 43,
1570         WLAN_EID_TCLAS_PROCESSING = 44,
1571         WLAN_EID_QOS_CAPA = 46,
1572         /* 802.11z */
1573         WLAN_EID_LINK_ID = 101,
1574         /* 802.11s */
1575         WLAN_EID_MESH_CONFIG = 113,
1576         WLAN_EID_MESH_ID = 114,
1577         WLAN_EID_LINK_METRIC_REPORT = 115,
1578         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1579         WLAN_EID_PEER_MGMT = 117,
1580         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1581         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1582         WLAN_EID_BEACON_TIMING = 120,
1583         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1584         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1585         WLAN_EID_MCCAOP_ADVERT = 123,
1586         WLAN_EID_MCCAOP_TEARDOWN = 124,
1587         WLAN_EID_GANN = 125,
1588         WLAN_EID_RANN = 126,
1589         WLAN_EID_PREQ = 130,
1590         WLAN_EID_PREP = 131,
1591         WLAN_EID_PERR = 132,
1592         WLAN_EID_PXU = 137,
1593         WLAN_EID_PXUC = 138,
1594         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1595         WLAN_EID_MIC = 140,
1596
1597         WLAN_EID_PWR_CONSTRAINT = 32,
1598         WLAN_EID_PWR_CAPABILITY = 33,
1599         WLAN_EID_TPC_REQUEST = 34,
1600         WLAN_EID_TPC_REPORT = 35,
1601         WLAN_EID_SUPPORTED_CHANNELS = 36,
1602         WLAN_EID_CHANNEL_SWITCH = 37,
1603         WLAN_EID_MEASURE_REQUEST = 38,
1604         WLAN_EID_MEASURE_REPORT = 39,
1605         WLAN_EID_QUIET = 40,
1606         WLAN_EID_IBSS_DFS = 41,
1607
1608         WLAN_EID_ERP_INFO = 42,
1609         WLAN_EID_EXT_SUPP_RATES = 50,
1610
1611         WLAN_EID_HT_CAPABILITY = 45,
1612         WLAN_EID_HT_OPERATION = 61,
1613
1614         WLAN_EID_RSN = 48,
1615         WLAN_EID_MMIE = 76,
1616         WLAN_EID_VENDOR_SPECIFIC = 221,
1617         WLAN_EID_QOS_PARAMETER = 222,
1618
1619         WLAN_EID_AP_CHAN_REPORT = 51,
1620         WLAN_EID_NEIGHBOR_REPORT = 52,
1621         WLAN_EID_RCPI = 53,
1622         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1623         WLAN_EID_ANTENNA_INFO = 64,
1624         WLAN_EID_RSNI = 65,
1625         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1626         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1627         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1628         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1629         WLAN_EID_MULTIPLE_BSSID = 71,
1630         WLAN_EID_BSS_COEX_2040 = 72,
1631         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1632         WLAN_EID_EXT_CAPABILITY = 127,
1633
1634         WLAN_EID_MOBILITY_DOMAIN = 54,
1635         WLAN_EID_FAST_BSS_TRANSITION = 55,
1636         WLAN_EID_TIMEOUT_INTERVAL = 56,
1637         WLAN_EID_RIC_DATA = 57,
1638         WLAN_EID_RIC_DESCRIPTOR = 75,
1639
1640         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1641         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1642         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1643
1644         WLAN_EID_VHT_CAPABILITY = 191,
1645         WLAN_EID_VHT_OPERATION = 192,
1646
1647         /* 802.11ad */
1648         WLAN_EID_NON_TX_BSSID_CAP =  83,
1649         WLAN_EID_WAKEUP_SCHEDULE = 143,
1650         WLAN_EID_EXT_SCHEDULE = 144,
1651         WLAN_EID_STA_AVAILABILITY = 145,
1652         WLAN_EID_DMG_TSPEC = 146,
1653         WLAN_EID_DMG_AT = 147,
1654         WLAN_EID_DMG_CAP = 148,
1655         WLAN_EID_DMG_OPERATION = 151,
1656         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1657         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1658         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1659         WLAN_EID_AWAKE_WINDOW = 157,
1660         WLAN_EID_MULTI_BAND = 158,
1661         WLAN_EID_ADDBA_EXT = 159,
1662         WLAN_EID_NEXT_PCP_LIST = 160,
1663         WLAN_EID_PCP_HANDOVER = 161,
1664         WLAN_EID_DMG_LINK_MARGIN = 162,
1665         WLAN_EID_SWITCHING_STREAM = 163,
1666         WLAN_EID_SESSION_TRANSITION = 164,
1667         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1668         WLAN_EID_CLUSTER_REPORT = 166,
1669         WLAN_EID_RELAY_CAP = 167,
1670         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1671         WLAN_EID_BEAM_LINK_MAINT = 169,
1672         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1673         WLAN_EID_U_PID = 171,
1674         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1675         WLAN_EID_QUIET_PERIOD_REQ = 175,
1676         WLAN_EID_QUIET_PERIOD_RESP = 177,
1677         WLAN_EID_EPAC_POLICY = 182,
1678         WLAN_EID_CLISTER_TIME_OFF = 183,
1679         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1680 };
1681
1682 /* Action category code */
1683 enum ieee80211_category {
1684         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1685         WLAN_CATEGORY_QOS = 1,
1686         WLAN_CATEGORY_DLS = 2,
1687         WLAN_CATEGORY_BACK = 3,
1688         WLAN_CATEGORY_PUBLIC = 4,
1689         WLAN_CATEGORY_HT = 7,
1690         WLAN_CATEGORY_SA_QUERY = 8,
1691         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1692         WLAN_CATEGORY_TDLS = 12,
1693         WLAN_CATEGORY_MESH_ACTION = 13,
1694         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1695         WLAN_CATEGORY_SELF_PROTECTED = 15,
1696         WLAN_CATEGORY_DMG = 16,
1697         WLAN_CATEGORY_WMM = 17,
1698         WLAN_CATEGORY_FST = 18,
1699         WLAN_CATEGORY_UNPROT_DMG = 20,
1700         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1701         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1702 };
1703
1704 /* SPECTRUM_MGMT action code */
1705 enum ieee80211_spectrum_mgmt_actioncode {
1706         WLAN_ACTION_SPCT_MSR_REQ = 0,
1707         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1708         WLAN_ACTION_SPCT_TPC_REQ = 2,
1709         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1710         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1711 };
1712
1713 /* HT action codes */
1714 enum ieee80211_ht_actioncode {
1715         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1716         WLAN_HT_ACTION_SMPS = 1,
1717         WLAN_HT_ACTION_PSMP = 2,
1718         WLAN_HT_ACTION_PCO_PHASE = 3,
1719         WLAN_HT_ACTION_CSI = 4,
1720         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1721         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1722         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1723 };
1724
1725 /* Self Protected Action codes */
1726 enum ieee80211_self_protected_actioncode {
1727         WLAN_SP_RESERVED = 0,
1728         WLAN_SP_MESH_PEERING_OPEN = 1,
1729         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1730         WLAN_SP_MESH_PEERING_CLOSE = 3,
1731         WLAN_SP_MGK_INFORM = 4,
1732         WLAN_SP_MGK_ACK = 5,
1733 };
1734
1735 /* Mesh action codes */
1736 enum ieee80211_mesh_actioncode {
1737         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1738         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1739         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1740         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1741         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1742         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1743         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1744         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1745         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1746         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1747         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1748 };
1749
1750 /* Security key length */
1751 enum ieee80211_key_len {
1752         WLAN_KEY_LEN_WEP40 = 5,
1753         WLAN_KEY_LEN_WEP104 = 13,
1754         WLAN_KEY_LEN_CCMP = 16,
1755         WLAN_KEY_LEN_TKIP = 32,
1756         WLAN_KEY_LEN_AES_CMAC = 16,
1757 };
1758
1759 /* Public action codes */
1760 enum ieee80211_pub_actioncode {
1761         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1762 };
1763
1764 /* TDLS action codes */
1765 enum ieee80211_tdls_actioncode {
1766         WLAN_TDLS_SETUP_REQUEST = 0,
1767         WLAN_TDLS_SETUP_RESPONSE = 1,
1768         WLAN_TDLS_SETUP_CONFIRM = 2,
1769         WLAN_TDLS_TEARDOWN = 3,
1770         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1771         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1772         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1773         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1774         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1775         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1776         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1777 };
1778
1779 /*
1780  * TDLS capabililites to be enabled in the 5th byte of the
1781  * @WLAN_EID_EXT_CAPABILITY information element
1782  */
1783 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1784 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1785
1786 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1787
1788 /* TDLS specific payload type in the LLC/SNAP header */
1789 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1790
1791 /**
1792  * enum - mesh synchronization method identifier
1793  *
1794  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1795  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1796  *      that will be specified in a vendor specific information element
1797  */
1798 enum {
1799         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1800         IEEE80211_SYNC_METHOD_VENDOR = 255,
1801 };
1802
1803 /**
1804  * enum - mesh path selection protocol identifier
1805  *
1806  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1807  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1808  *      be specified in a vendor specific information element
1809  */
1810 enum {
1811         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1812         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1813 };
1814
1815 /**
1816  * enum - mesh path selection metric identifier
1817  *
1818  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1819  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1820  *      specified in a vendor specific information element
1821  */
1822 enum {
1823         IEEE80211_PATH_METRIC_AIRTIME = 1,
1824         IEEE80211_PATH_METRIC_VENDOR = 255,
1825 };
1826
1827 /**
1828  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1829  *
1830  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1831  *
1832  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1833  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1834  *      this value
1835  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1836  *      the proactive PREQ with proactive PREP subfield set to 0
1837  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1838  *      supports the proactive PREQ with proactive PREP subfield set to 1
1839  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1840  *      the proactive RANN
1841  */
1842 enum ieee80211_root_mode_identifier {
1843         IEEE80211_ROOTMODE_NO_ROOT = 0,
1844         IEEE80211_ROOTMODE_ROOT = 1,
1845         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1846         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1847         IEEE80211_PROACTIVE_RANN = 4,
1848 };
1849
1850 /*
1851  * IEEE 802.11-2007 7.3.2.9 Country information element
1852  *
1853  * Minimum length is 8 octets, ie len must be evenly
1854  * divisible by 2
1855  */
1856
1857 /* Although the spec says 8 I'm seeing 6 in practice */
1858 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1859
1860 /* The Country String field of the element shall be 3 octets in length */
1861 #define IEEE80211_COUNTRY_STRING_LEN    3
1862
1863 /*
1864  * For regulatory extension stuff see IEEE 802.11-2007
1865  * Annex I (page 1141) and Annex J (page 1147). Also
1866  * review 7.3.2.9.
1867  *
1868  * When dot11RegulatoryClassesRequired is true and the
1869  * first_channel/reg_extension_id is >= 201 then the IE
1870  * compromises of the 'ext' struct represented below:
1871  *
1872  *  - Regulatory extension ID - when generating IE this just needs
1873  *    to be monotonically increasing for each triplet passed in
1874  *    the IE
1875  *  - Regulatory class - index into set of rules
1876  *  - Coverage class - index into air propagation time (Table 7-27),
1877  *    in microseconds, you can compute the air propagation time from
1878  *    the index by multiplying by 3, so index 10 yields a propagation
1879  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1880  *    yet. A value of 0 inicates air propagation of <= 1 us.
1881  *
1882  *  See also Table I.2 for Emission limit sets and table
1883  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1884  *  a reg_class to an emission limit set and behavior limit set.
1885  */
1886 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1887
1888 /*
1889  *  Channels numbers in the IE must be monotonically increasing
1890  *  if dot11RegulatoryClassesRequired is not true.
1891  *
1892  *  If dot11RegulatoryClassesRequired is true consecutive
1893  *  subband triplets following a regulatory triplet shall
1894  *  have monotonically increasing first_channel number fields.
1895  *
1896  *  Channel numbers shall not overlap.
1897  *
1898  *  Note that max_power is signed.
1899  */
1900 struct ieee80211_country_ie_triplet {
1901         union {
1902                 struct {
1903                         u8 first_channel;
1904                         u8 num_channels;
1905                         s8 max_power;
1906                 } __packed chans;
1907                 struct {
1908                         u8 reg_extension_id;
1909                         u8 reg_class;
1910                         u8 coverage_class;
1911                 } __packed ext;
1912         };
1913 } __packed;
1914
1915 enum ieee80211_timeout_interval_type {
1916         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1917         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1918         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1919 };
1920
1921 /* BACK action code */
1922 enum ieee80211_back_actioncode {
1923         WLAN_ACTION_ADDBA_REQ = 0,
1924         WLAN_ACTION_ADDBA_RESP = 1,
1925         WLAN_ACTION_DELBA = 2,
1926 };
1927
1928 /* BACK (block-ack) parties */
1929 enum ieee80211_back_parties {
1930         WLAN_BACK_RECIPIENT = 0,
1931         WLAN_BACK_INITIATOR = 1,
1932 };
1933
1934 /* SA Query action */
1935 enum ieee80211_sa_query_action {
1936         WLAN_ACTION_SA_QUERY_REQUEST = 0,
1937         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1938 };
1939
1940
1941 /* cipher suite selectors */
1942 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1943 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1944 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1945 /* reserved:                            0x000FAC03 */
1946 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1947 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1948 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1949 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
1950
1951 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
1952
1953 /* AKM suite selectors */
1954 #define WLAN_AKM_SUITE_8021X            0x000FAC01
1955 #define WLAN_AKM_SUITE_PSK              0x000FAC02
1956 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
1957 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
1958
1959 #define WLAN_MAX_KEY_LEN                32
1960
1961 #define WLAN_PMKID_LEN                  16
1962
1963 #define WLAN_OUI_WFA                    0x506f9a
1964 #define WLAN_OUI_TYPE_WFA_P2P           9
1965 #define WLAN_OUI_MICROSOFT              0x0050f2
1966 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
1967 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
1968 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
1969
1970 /*
1971  * WMM/802.11e Tspec Element
1972  */
1973 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
1974 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
1975
1976 enum ieee80211_tspec_status_code {
1977         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1978         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1979 };
1980
1981 struct ieee80211_tspec_ie {
1982         u8 element_id;
1983         u8 len;
1984         u8 oui[3];
1985         u8 oui_type;
1986         u8 oui_subtype;
1987         u8 version;
1988         __le16 tsinfo;
1989         u8 tsinfo_resvd;
1990         __le16 nominal_msdu;
1991         __le16 max_msdu;
1992         __le32 min_service_int;
1993         __le32 max_service_int;
1994         __le32 inactivity_int;
1995         __le32 suspension_int;
1996         __le32 service_start_time;
1997         __le32 min_data_rate;
1998         __le32 mean_data_rate;
1999         __le32 peak_data_rate;
2000         __le32 max_burst_size;
2001         __le32 delay_bound;
2002         __le32 min_phy_rate;
2003         __le16 sba;
2004         __le16 medium_time;
2005 } __packed;
2006
2007 /**
2008  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2009  * @hdr: the frame
2010  *
2011  * The qos ctrl bytes come after the frame_control, duration, seq_num
2012  * and 3 or 4 addresses of length ETH_ALEN.
2013  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2014  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2015  */
2016 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2017 {
2018         if (ieee80211_has_a4(hdr->frame_control))
2019                 return (u8 *)hdr + 30;
2020         else
2021                 return (u8 *)hdr + 24;
2022 }
2023
2024 /**
2025  * ieee80211_get_SA - get pointer to SA
2026  * @hdr: the frame
2027  *
2028  * Given an 802.11 frame, this function returns the offset
2029  * to the source address (SA). It does not verify that the
2030  * header is long enough to contain the address, and the
2031  * header must be long enough to contain the frame control
2032  * field.
2033  */
2034 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2035 {
2036         if (ieee80211_has_a4(hdr->frame_control))
2037                 return hdr->addr4;
2038         if (ieee80211_has_fromds(hdr->frame_control))
2039                 return hdr->addr3;
2040         return hdr->addr2;
2041 }
2042
2043 /**
2044  * ieee80211_get_DA - get pointer to DA
2045  * @hdr: the frame
2046  *
2047  * Given an 802.11 frame, this function returns the offset
2048  * to the destination address (DA). It does not verify that
2049  * the header is long enough to contain the address, and the
2050  * header must be long enough to contain the frame control
2051  * field.
2052  */
2053 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2054 {
2055         if (ieee80211_has_tods(hdr->frame_control))
2056                 return hdr->addr3;
2057         else
2058                 return hdr->addr1;
2059 }
2060
2061 /**
2062  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2063  * @hdr: the frame (buffer must include at least the first octet of payload)
2064  */
2065 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2066 {
2067         if (ieee80211_is_disassoc(hdr->frame_control) ||
2068             ieee80211_is_deauth(hdr->frame_control))
2069                 return true;
2070
2071         if (ieee80211_is_action(hdr->frame_control)) {
2072                 u8 *category;
2073
2074                 /*
2075                  * Action frames, excluding Public Action frames, are Robust
2076                  * Management Frames. However, if we are looking at a Protected
2077                  * frame, skip the check since the data may be encrypted and
2078                  * the frame has already been found to be a Robust Management
2079                  * Frame (by the other end).
2080                  */
2081                 if (ieee80211_has_protected(hdr->frame_control))
2082                         return true;
2083                 category = ((u8 *) hdr) + 24;
2084                 return *category != WLAN_CATEGORY_PUBLIC &&
2085                         *category != WLAN_CATEGORY_HT &&
2086                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2087                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2088         }
2089
2090         return false;
2091 }
2092
2093 /**
2094  * ieee80211_is_public_action - check if frame is a public action frame
2095  * @hdr: the frame
2096  * @len: length of the frame
2097  */
2098 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2099                                               size_t len)
2100 {
2101         struct ieee80211_mgmt *mgmt = (void *)hdr;
2102
2103         if (len < IEEE80211_MIN_ACTION_SIZE)
2104                 return false;
2105         if (!ieee80211_is_action(hdr->frame_control))
2106                 return false;
2107         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2108 }
2109
2110 /**
2111  * ieee80211_dsss_chan_to_freq - get channel center frequency
2112  * @channel: the DSSS channel
2113  *
2114  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2115  * Ref IEEE 802.11-2007 section 15.6
2116  */
2117 static inline int ieee80211_dsss_chan_to_freq(int channel)
2118 {
2119         if ((channel > 0) && (channel < 14))
2120                 return 2407 + (channel * 5);
2121         else if (channel == 14)
2122                 return 2484;
2123         else
2124                 return -1;
2125 }
2126
2127 /**
2128  * ieee80211_freq_to_dsss_chan - get channel
2129  * @freq: the frequency
2130  *
2131  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2132  * Ref IEEE 802.11-2007 section 15.6
2133  *
2134  * This routine selects the channel with the closest center frequency.
2135  */
2136 static inline int ieee80211_freq_to_dsss_chan(int freq)
2137 {
2138         if ((freq >= 2410) && (freq < 2475))
2139                 return (freq - 2405) / 5;
2140         else if ((freq >= 2482) && (freq < 2487))
2141                 return 14;
2142         else
2143                 return -1;
2144 }
2145
2146 /**
2147  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2148  * @tu: the TUs
2149  */
2150 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2151 {
2152         return 1024 * tu;
2153 }
2154
2155 /**
2156  * ieee80211_check_tim - check if AID bit is set in TIM
2157  * @tim: the TIM IE
2158  * @tim_len: length of the TIM IE
2159  * @aid: the AID to look for
2160  */
2161 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2162                                        u8 tim_len, u16 aid)
2163 {
2164         u8 mask;
2165         u8 indexn0, indexn1, indexn2;
2166
2167         if (unlikely(!tim || tim_len < sizeof(*tim)))
2168                 return false;
2169
2170         aid &= 0x3fff;
2171         indexn0 = aid / 8;
2172         mask  = 1 << (aid & 7);
2173
2174         indexn1 = tim->bitmap_ctrl & 0xfe;
2175         indexn2 = tim_len + indexn1 - 4;
2176
2177         if (indexn0 < indexn1 || indexn0 > indexn2)
2178                 return false;
2179
2180         indexn0 -= indexn1;
2181
2182         return !!(tim->virtual_map[indexn0] & mask);
2183 }
2184
2185 #endif /* __LINUX_IEEE80211_H */