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_ext_chansw_ie
 685  *
 686  * This structure represents the "Extended Channel Switch Announcement element"
 687  */
 688 struct ieee80211_ext_chansw_ie {
 689         u8 mode;
 690         u8 new_operating_class;
 691         u8 new_ch_num;
 692         u8 count;
 693 } __packed;
 694
 695 /**
 696  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 697  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 698  *      values here
 699  * This structure represents the "Secondary Channel Offset element"
 700  */
 701 struct ieee80211_sec_chan_offs_ie {
 702         u8 sec_chan_offs;
 703 } __packed;
 704
 705 /**
 706  * struct ieee80211_tim
 707  *
 708  * This structure refers to "Traffic Indication Map information element"
 709  */
 710 struct ieee80211_tim_ie {
 711         u8 dtim_count;
 712         u8 dtim_period;
 713         u8 bitmap_ctrl;
 714         /* variable size: 1 - 251 bytes */
 715         u8 virtual_map[1];
 716 } __packed;
 717
 718 /**
 719  * struct ieee80211_meshconf_ie
 720  *
 721  * This structure refers to "Mesh Configuration information element"
 722  */
 723 struct ieee80211_meshconf_ie {
 724         u8 meshconf_psel;
 725         u8 meshconf_pmetric;
 726         u8 meshconf_congest;
 727         u8 meshconf_synch;
 728         u8 meshconf_auth;
 729         u8 meshconf_form;
 730         u8 meshconf_cap;
 731 } __packed;
 732
 733 /**
 734  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 735  *
 736  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 737  *      additional mesh peerings with other mesh STAs
 738  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 739  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 740  *      is ongoing
 741  */
 742 enum mesh_config_capab_flags {
 743         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 744         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 745         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 746 };
 747
 748 /**
 749  * struct ieee80211_rann_ie
 750  *
 751  * This structure refers to "Root Announcement information element"
 752  */
 753 struct ieee80211_rann_ie {
 754         u8 rann_flags;
 755         u8 rann_hopcount;
 756         u8 rann_ttl;
 757         u8 rann_addr[6];
 758         __le32 rann_seq;
 759         __le32 rann_interval;
 760         __le32 rann_metric;
 761 } __packed;
 762
 763 enum ieee80211_rann_flags {
 764         RANN_FLAG_IS_GATE = 1 << 0,
 765 };
 766
 767 enum ieee80211_ht_chanwidth_values {
 768         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 769         IEEE80211_HT_CHANWIDTH_ANY = 1,
 770 };
 771
 772 #define WLAN_SA_QUERY_TR_ID_LEN 2
 773
 774 struct ieee80211_mgmt {
 775         __le16 frame_control;
 776         __le16 duration;
 777         u8 da[6];
 778         u8 sa[6];
 779         u8 bssid[6];
 780         __le16 seq_ctrl;
 781         union {
 782                 struct {
 783                         __le16 auth_alg;
 784                         __le16 auth_transaction;
 785                         __le16 status_code;
 786                         /* possibly followed by Challenge text */
 787                         u8 variable[0];
 788                 } __packed auth;
 789                 struct {
 790                         __le16 reason_code;
 791                 } __packed deauth;
 792                 struct {
 793                         __le16 capab_info;
 794                         __le16 listen_interval;
 795                         /* followed by SSID and Supported rates */
 796                         u8 variable[0];
 797                 } __packed assoc_req;
 798                 struct {
 799                         __le16 capab_info;
 800                         __le16 status_code;
 801                         __le16 aid;
 802                         /* followed by Supported rates */
 803                         u8 variable[0];
 804                 } __packed assoc_resp, reassoc_resp;
 805                 struct {
 806                         __le16 capab_info;
 807                         __le16 listen_interval;
 808                         u8 current_ap[6];
 809                         /* followed by SSID and Supported rates */
 810                         u8 variable[0];
 811                 } __packed reassoc_req;
 812                 struct {
 813                         __le16 reason_code;
 814                 } __packed disassoc;
 815                 struct {
 816                         __le64 timestamp;
 817                         __le16 beacon_int;
 818                         __le16 capab_info;
 819                         /* followed by some of SSID, Supported rates,
 820                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 821                         u8 variable[0];
 822                 } __packed beacon;
 823                 struct {
 824                         /* only variable items: SSID, Supported rates */
 825                         u8 variable[0];
 826                 } __packed probe_req;
 827                 struct {
 828                         __le64 timestamp;
 829                         __le16 beacon_int;
 830                         __le16 capab_info;
 831                         /* followed by some of SSID, Supported rates,
 832                          * FH Params, DS Params, CF Params, IBSS Params */
 833                         u8 variable[0];
 834                 } __packed probe_resp;
 835                 struct {
 836                         u8 category;
 837                         union {
 838                                 struct {
 839                                         u8 action_code;
 840                                         u8 dialog_token;
 841                                         u8 status_code;
 842                                         u8 variable[0];
 843                                 } __packed wme_action;
 844                                 struct{
 845                                         u8 action_code;
 846                                         u8 variable[0];
 847                                 } __packed chan_switch;
 848                                 struct{
 849                                         u8 action_code;
 850                                         u8 dialog_token;
 851                                         u8 element_id;
 852                                         u8 length;
 853                                         struct ieee80211_msrment_ie msr_elem;
 854                                 } __packed measurement;
 855                                 struct{
 856                                         u8 action_code;
 857                                         u8 dialog_token;
 858                                         __le16 capab;
 859                                         __le16 timeout;
 860                                         __le16 start_seq_num;
 861                                 } __packed addba_req;
 862                                 struct{
 863                                         u8 action_code;
 864                                         u8 dialog_token;
 865                                         __le16 status;
 866                                         __le16 capab;
 867                                         __le16 timeout;
 868                                 } __packed addba_resp;
 869                                 struct{
 870                                         u8 action_code;
 871                                         __le16 params;
 872                                         __le16 reason_code;
 873                                 } __packed delba;
 874                                 struct {
 875                                         u8 action_code;
 876                                         u8 variable[0];
 877                                 } __packed self_prot;
 878                                 struct{
 879                                         u8 action_code;
 880                                         u8 variable[0];
 881                                 } __packed mesh_action;
 882                                 struct {
 883                                         u8 action;
 884                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 885                                 } __packed sa_query;
 886                                 struct {
 887                                         u8 action;
 888                                         u8 smps_control;
 889                                 } __packed ht_smps;
 890                                 struct {
 891                                         u8 action_code;
 892                                         u8 chanwidth;
 893                                 } __packed ht_notify_cw;
 894                                 struct {
 895                                         u8 action_code;
 896                                         u8 dialog_token;
 897                                         __le16 capability;
 898                                         u8 variable[0];
 899                                 } __packed tdls_discover_resp;
 900                         } u;
 901                 } __packed action;
 902         } u;
 903 } __packed __aligned(2);
 904
 905 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 906 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 907
 908 /* mgmt header + 1 byte category code */
 909 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 910
 911
 912 /* Management MIC information element (IEEE 802.11w) */
 913 struct ieee80211_mmie {
 914         u8 element_id;
 915         u8 length;
 916         __le16 key_id;
 917         u8 sequence_number[6];
 918         u8 mic[8];
 919 } __packed;
 920
 921 struct ieee80211_vendor_ie {
 922         u8 element_id;
 923         u8 len;
 924         u8 oui[3];
 925         u8 oui_type;
 926 } __packed;
 927
 928 /* Control frames */
 929 struct ieee80211_rts {
 930         __le16 frame_control;
 931         __le16 duration;
 932         u8 ra[6];
 933         u8 ta[6];
 934 } __packed __aligned(2);
 935
 936 struct ieee80211_cts {
 937         __le16 frame_control;
 938         __le16 duration;
 939         u8 ra[6];
 940 } __packed __aligned(2);
 941
 942 struct ieee80211_pspoll {
 943         __le16 frame_control;
 944         __le16 aid;
 945         u8 bssid[6];
 946         u8 ta[6];
 947 } __packed __aligned(2);
 948
 949 /* TDLS */
 950
 951 /* Link-id information element */
 952 struct ieee80211_tdls_lnkie {
 953         u8 ie_type; /* Link Identifier IE */
 954         u8 ie_len;
 955         u8 bssid[6];
 956         u8 init_sta[6];
 957         u8 resp_sta[6];
 958 } __packed;
 959
 960 struct ieee80211_tdls_data {
 961         u8 da[6];
 962         u8 sa[6];
 963         __be16 ether_type;
 964         u8 payload_type;
 965         u8 category;
 966         u8 action_code;
 967         union {
 968                 struct {
 969                         u8 dialog_token;
 970                         __le16 capability;
 971                         u8 variable[0];
 972                 } __packed setup_req;
 973                 struct {
 974                         __le16 status_code;
 975                         u8 dialog_token;
 976                         __le16 capability;
 977                         u8 variable[0];
 978                 } __packed setup_resp;
 979                 struct {
 980                         __le16 status_code;
 981                         u8 dialog_token;
 982                         u8 variable[0];
 983                 } __packed setup_cfm;
 984                 struct {
 985                         __le16 reason_code;
 986                         u8 variable[0];
 987                 } __packed teardown;
 988                 struct {
 989                         u8 dialog_token;
 990                         u8 variable[0];
 991                 } __packed discover_req;
 992         } u;
 993 } __packed;
 994
 995 /*
 996  * Peer-to-Peer IE attribute related definitions.
 997  */
 998 /**
 999  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1000  */
1001 enum ieee80211_p2p_attr_id {
1002         IEEE80211_P2P_ATTR_STATUS = 0,
1003         IEEE80211_P2P_ATTR_MINOR_REASON,
1004         IEEE80211_P2P_ATTR_CAPABILITY,
1005         IEEE80211_P2P_ATTR_DEVICE_ID,
1006         IEEE80211_P2P_ATTR_GO_INTENT,
1007         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1008         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1009         IEEE80211_P2P_ATTR_GROUP_BSSID,
1010         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1011         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1012         IEEE80211_P2P_ATTR_MANAGABILITY,
1013         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1014         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1015         IEEE80211_P2P_ATTR_DEVICE_INFO,
1016         IEEE80211_P2P_ATTR_GROUP_INFO,
1017         IEEE80211_P2P_ATTR_GROUP_ID,
1018         IEEE80211_P2P_ATTR_INTERFACE,
1019         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1020         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1021         /* 19 - 220: Reserved */
1022         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1023
1024         IEEE80211_P2P_ATTR_MAX
1025 };
1026
1027 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1028 /* Typical max value used here */
1029 #define IEEE80211_P2P_NOA_DESC_MAX      4
1030
1031 struct ieee80211_p2p_noa_desc {
1032         u8 count;
1033         __le32 duration;
1034         __le32 interval;
1035         __le32 start_time;
1036 } __packed;
1037
1038 struct ieee80211_p2p_noa_attr {
1039         u8 index;
1040         u8 oppps_ctwindow;
1041         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1042 } __packed;
1043
1044 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1045 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1046
1047 /**
1048  * struct ieee80211_bar - HT Block Ack Request
1049  *
1050  * This structure refers to "HT BlockAckReq" as
1051  * described in 802.11n draft section 7.2.1.7.1
1052  */
1053 struct ieee80211_bar {
1054         __le16 frame_control;
1055         __le16 duration;
1056         __u8 ra[6];
1057         __u8 ta[6];
1058         __le16 control;
1059         __le16 start_seq_num;
1060 } __packed __aligned(4);
1061
1062 /* 802.11 BA(R) control masks */
1063 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1064 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1065 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1066 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1067 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1068
1069 /**
1070  * struct ieee80211_ba - HT Block Ack
1071  *
1072  * This structure refers to "HT BlockAck" as
1073  * described in 802.11n draft section 7.2.1.8.1
1074  */
1075 struct ieee80211_ba {
1076         __le16 frame_control;
1077         __le16 duration;
1078         u8 ra[6];
1079         u8 ta[6];
1080         __le16 control;
1081
1082         __le16 start_seq_num;
1083         u8 bitmap[8];
1084 } __packed;
1085
1086 #define IEEE80211_HT_MCS_MASK_LEN               10
1087
1088 /**
1089  * struct ieee80211_mcs_info - MCS information
1090  * @rx_mask: RX mask
1091  * @rx_highest: highest supported RX rate. If set represents
1092  *      the highest supported RX data rate in units of 1 Mbps.
1093  *      If this field is 0 this value should not be used to
1094  *      consider the highest RX data rate supported.
1095  * @tx_params: TX parameters
1096  */
1097 struct ieee80211_mcs_info {
1098         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1099         __le16 rx_highest;
1100         u8 tx_params;
1101         u8 reserved[3];
1102 } __packed;
1103
1104 /* 802.11n HT capability MSC set */
1105 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1106 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1107 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1108 /* value 0 == 1 stream etc */
1109 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1110 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1111 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1112 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1113
1114 /*
1115  * 802.11n D5.0 20.3.5 / 20.6 says:
1116  * - indices 0 to 7 and 32 are single spatial stream
1117  * - 8 to 31 are multiple spatial streams using equal modulation
1118  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1119  * - remainder are multiple spatial streams using unequal modulation
1120  */
1121 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1122 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1123         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1124
1125 /**
1126  * struct ieee80211_ht_cap - HT capabilities
1127  *
1128  * This structure is the "HT capabilities element" as
1129  * described in 802.11n D5.0 7.3.2.57
1130  */
1131 struct ieee80211_ht_cap {
1132         __le16 cap_info;
1133         u8 ampdu_params_info;
1134
1135         /* 16 bytes MCS information */
1136         struct ieee80211_mcs_info mcs;
1137
1138         __le16 extended_ht_cap_info;
1139         __le32 tx_BF_cap_info;
1140         u8 antenna_selection_info;
1141 } __packed;
1142
1143 /* 802.11n HT capabilities masks (for cap_info) */
1144 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1145 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1146 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1147 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1148 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1149 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1150 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1151 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1152 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1153 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1154 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1155 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1156 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1157 #define IEEE80211_HT_CAP_RESERVED               0x2000
1158 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1159 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1160
1161 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1162 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1163 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1164 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1165 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1166 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1167 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1168 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1169
1170 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1171 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1172 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1173 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1174
1175 /*
1176  * Maximum length of AMPDU that the STA can receive.
1177  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1178  */
1179 enum ieee80211_max_ampdu_length_exp {
1180         IEEE80211_HT_MAX_AMPDU_8K = 0,
1181         IEEE80211_HT_MAX_AMPDU_16K = 1,
1182         IEEE80211_HT_MAX_AMPDU_32K = 2,
1183         IEEE80211_HT_MAX_AMPDU_64K = 3
1184 };
1185
1186 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1187
1188 /* Minimum MPDU start spacing */
1189 enum ieee80211_min_mpdu_spacing {
1190         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1191         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1192         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1193         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1194         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1195         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1196         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1197         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1198 };
1199
1200 /**
1201  * struct ieee80211_ht_operation - HT operation IE
1202  *
1203  * This structure is the "HT operation element" as
1204  * described in 802.11n-2009 7.3.2.57
1205  */
1206 struct ieee80211_ht_operation {
1207         u8 primary_chan;
1208         u8 ht_param;
1209         __le16 operation_mode;
1210         __le16 stbc_param;
1211         u8 basic_set[16];
1212 } __packed;
1213
1214 /* for ht_param */
1215 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1216 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1217 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1218 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1219 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1220 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1221
1222 /* for operation_mode */
1223 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1224 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1225 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1226 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1227 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1228 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1229 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1230
1231 /* for stbc_param */
1232 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1233 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1234 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1235 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1236 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1237 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1238
1239
1240 /* block-ack parameters */
1241 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1242 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1243 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1244 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1245 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1246
1247 /*
1248  * A-PMDU buffer sizes
1249  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1250  */
1251 #define IEEE80211_MIN_AMPDU_BUF 0x8
1252 #define IEEE80211_MAX_AMPDU_BUF 0x40
1253
1254
1255 /* Spatial Multiplexing Power Save Modes (for capability) */
1256 #define WLAN_HT_CAP_SM_PS_STATIC        0
1257 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1258 #define WLAN_HT_CAP_SM_PS_INVALID       2
1259 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1260
1261 /* for SM power control field lower two bits */
1262 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1263 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1264 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1265
1266 /**
1267  * struct ieee80211_vht_mcs_info - VHT MCS information
1268  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1269  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1270  *      STA can receive. Rate expressed in units of 1 Mbps.
1271  *      If this field is 0 this value should not be used to
1272  *      consider the highest RX data rate supported.
1273  *      The top 3 bits of this field are reserved.
1274  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1275  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1276  *      STA can transmit. Rate expressed in units of 1 Mbps.
1277  *      If this field is 0 this value should not be used to
1278  *      consider the highest TX data rate supported.
1279  *      The top 3 bits of this field are reserved.
1280  */
1281 struct ieee80211_vht_mcs_info {
1282         __le16 rx_mcs_map;
1283         __le16 rx_highest;
1284         __le16 tx_mcs_map;
1285         __le16 tx_highest;
1286 } __packed;
1287
1288 /**
1289  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1290  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1291  *      number of streams
1292  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1293  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1294  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1295  *
1296  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1297  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1298  * both split into 8 subfields by number of streams. These values indicate
1299  * which MCSes are supported for the number of streams the value appears
1300  * for.
1301  */
1302 enum ieee80211_vht_mcs_support {
1303         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1304         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1305         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1306         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1307 };
1308
1309 /**
1310  * struct ieee80211_vht_cap - VHT capabilities
1311  *
1312  * This structure is the "VHT capabilities element" as
1313  * described in 802.11ac D3.0 8.4.2.160
1314  * @vht_cap_info: VHT capability info
1315  * @supp_mcs: VHT MCS supported rates
1316  */
1317 struct ieee80211_vht_cap {
1318         __le32 vht_cap_info;
1319         struct ieee80211_vht_mcs_info supp_mcs;
1320 } __packed;
1321
1322 /**
1323  * enum ieee80211_vht_chanwidth - VHT channel width
1324  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1325  *      determine the channel width (20 or 40 MHz)
1326  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1327  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1328  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1329  */
1330 enum ieee80211_vht_chanwidth {
1331         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1332         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1333         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1334         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1335 };
1336
1337 /**
1338  * struct ieee80211_vht_operation - VHT operation IE
1339  *
1340  * This structure is the "VHT operation element" as
1341  * described in 802.11ac D3.0 8.4.2.161
1342  * @chan_width: Operating channel width
1343  * @center_freq_seg1_idx: center freq segment 1 index
1344  * @center_freq_seg2_idx: center freq segment 2 index
1345  * @basic_mcs_set: VHT Basic MCS rate set
1346  */
1347 struct ieee80211_vht_operation {
1348         u8 chan_width;
1349         u8 center_freq_seg1_idx;
1350         u8 center_freq_seg2_idx;
1351         __le16 basic_mcs_set;
1352 } __packed;
1353
1354
1355 /* 802.11ac VHT Capabilities */
1356 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1357 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1358 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1359 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1360 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1361 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1362 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1363 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1364 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1365 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1366 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1367 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1368 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1369 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1370 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1371 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1372 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX               0x00006000
1373 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX               0x00030000
1374 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1375 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1376 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1377 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1378 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1379 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1380                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1381 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1382 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1383 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1384 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1385
1386 /* Authentication algorithms */
1387 #define WLAN_AUTH_OPEN 0
1388 #define WLAN_AUTH_SHARED_KEY 1
1389 #define WLAN_AUTH_FT 2
1390 #define WLAN_AUTH_SAE 3
1391 #define WLAN_AUTH_LEAP 128
1392
1393 #define WLAN_AUTH_CHALLENGE_LEN 128
1394
1395 #define WLAN_CAPABILITY_ESS             (1<<0)
1396 #define WLAN_CAPABILITY_IBSS            (1<<1)
1397
1398 /*
1399  * A mesh STA sets the ESS and IBSS capability bits to zero.
1400  * however, this holds true for p2p probe responses (in the p2p_find
1401  * phase) as well.
1402  */
1403 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1404         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1405
1406 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1407 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1408 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1409 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1410 #define WLAN_CAPABILITY_PBCC            (1<<6)
1411 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1412
1413 /* 802.11h */
1414 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1415 #define WLAN_CAPABILITY_QOS             (1<<9)
1416 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1417 #define WLAN_CAPABILITY_APSD            (1<<11)
1418 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1419 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1420 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1421 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1422
1423 /* DMG (60gHz) 802.11ad */
1424 /* type - bits 0..1 */
1425 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1426 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1427 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1428 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1429
1430 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1431 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1432 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1433 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1434
1435 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1436 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1437
1438 /* measurement */
1439 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1440 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1441 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1442
1443 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1444 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1445 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1446
1447 /* 802.11g ERP information element */
1448 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1449 #define WLAN_ERP_USE_PROTECTION (1<<1)
1450 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1451
1452 /* WLAN_ERP_BARKER_PREAMBLE values */
1453 enum {
1454         WLAN_ERP_PREAMBLE_SHORT = 0,
1455         WLAN_ERP_PREAMBLE_LONG = 1,
1456 };
1457
1458 /* Band ID, 802.11ad #8.4.1.45 */
1459 enum {
1460         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1461         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1462         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1463         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1464         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1465         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1466 };
1467
1468 /* Status codes */
1469 enum ieee80211_statuscode {
1470         WLAN_STATUS_SUCCESS = 0,
1471         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1472         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1473         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1474         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1475         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1476         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1477         WLAN_STATUS_CHALLENGE_FAIL = 15,
1478         WLAN_STATUS_AUTH_TIMEOUT = 16,
1479         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1480         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1481         /* 802.11b */
1482         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1483         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1484         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1485         /* 802.11h */
1486         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1487         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1488         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1489         /* 802.11g */
1490         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1491         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1492         /* 802.11w */
1493         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1494         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1495         /* 802.11i */
1496         WLAN_STATUS_INVALID_IE = 40,
1497         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1498         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1499         WLAN_STATUS_INVALID_AKMP = 43,
1500         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1501         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1502         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1503         /* 802.11e */
1504         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1505         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1506         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1507         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1508         WLAN_STATUS_REQUEST_DECLINED = 37,
1509         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1510         WLAN_STATUS_CHANGE_TSPEC = 39,
1511         WLAN_STATUS_WAIT_TS_DELAY = 47,
1512         WLAN_STATUS_NO_DIRECT_LINK = 48,
1513         WLAN_STATUS_STA_NOT_PRESENT = 49,
1514         WLAN_STATUS_STA_NOT_QSTA = 50,
1515         /* 802.11s */
1516         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1517         WLAN_STATUS_FCG_NOT_SUPP = 78,
1518         WLAN_STATUS_STA_NO_TBTT = 78,
1519         /* 802.11ad */
1520         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1521         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1522         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1523         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1524         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1525         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1526         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1527         WLAN_STATUS_REJECT_DSE_BAND = 96,
1528         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1529         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1530 };
1531
1532
1533 /* Reason codes */
1534 enum ieee80211_reasoncode {
1535         WLAN_REASON_UNSPECIFIED = 1,
1536         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1537         WLAN_REASON_DEAUTH_LEAVING = 3,
1538         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1539         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1540         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1541         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1542         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1543         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1544         /* 802.11h */
1545         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1546         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1547         /* 802.11i */
1548         WLAN_REASON_INVALID_IE = 13,
1549         WLAN_REASON_MIC_FAILURE = 14,
1550         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1551         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1552         WLAN_REASON_IE_DIFFERENT = 17,
1553         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1554         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1555         WLAN_REASON_INVALID_AKMP = 20,
1556         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1557         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1558         WLAN_REASON_IEEE8021X_FAILED = 23,
1559         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1560         /* 802.11e */
1561         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1562         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1563         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1564         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1565         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1566         WLAN_REASON_QSTA_NOT_USE = 37,
1567         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1568         WLAN_REASON_QSTA_TIMEOUT = 39,
1569         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1570         /* 802.11s */
1571         WLAN_REASON_MESH_PEER_CANCELED = 52,
1572         WLAN_REASON_MESH_MAX_PEERS = 53,
1573         WLAN_REASON_MESH_CONFIG = 54,
1574         WLAN_REASON_MESH_CLOSE = 55,
1575         WLAN_REASON_MESH_MAX_RETRIES = 56,
1576         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1577         WLAN_REASON_MESH_INVALID_GTK = 58,
1578         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1579         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1580         WLAN_REASON_MESH_PATH_ERROR = 61,
1581         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1582         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1583         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1584         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1585         WLAN_REASON_MESH_CHAN = 66,
1586 };
1587
1588
1589 /* Information Element IDs */
1590 enum ieee80211_eid {
1591         WLAN_EID_SSID = 0,
1592         WLAN_EID_SUPP_RATES = 1,
1593         WLAN_EID_FH_PARAMS = 2,
1594         WLAN_EID_DS_PARAMS = 3,
1595         WLAN_EID_CF_PARAMS = 4,
1596         WLAN_EID_TIM = 5,
1597         WLAN_EID_IBSS_PARAMS = 6,
1598         WLAN_EID_CHALLENGE = 16,
1599
1600         WLAN_EID_COUNTRY = 7,
1601         WLAN_EID_HP_PARAMS = 8,
1602         WLAN_EID_HP_TABLE = 9,
1603         WLAN_EID_REQUEST = 10,
1604
1605         WLAN_EID_QBSS_LOAD = 11,
1606         WLAN_EID_EDCA_PARAM_SET = 12,
1607         WLAN_EID_TSPEC = 13,
1608         WLAN_EID_TCLAS = 14,
1609         WLAN_EID_SCHEDULE = 15,
1610         WLAN_EID_TS_DELAY = 43,
1611         WLAN_EID_TCLAS_PROCESSING = 44,
1612         WLAN_EID_QOS_CAPA = 46,
1613         /* 802.11z */
1614         WLAN_EID_LINK_ID = 101,
1615         /* 802.11s */
1616         WLAN_EID_MESH_CONFIG = 113,
1617         WLAN_EID_MESH_ID = 114,
1618         WLAN_EID_LINK_METRIC_REPORT = 115,
1619         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1620         WLAN_EID_PEER_MGMT = 117,
1621         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1622         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1623         WLAN_EID_BEACON_TIMING = 120,
1624         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1625         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1626         WLAN_EID_MCCAOP_ADVERT = 123,
1627         WLAN_EID_MCCAOP_TEARDOWN = 124,
1628         WLAN_EID_GANN = 125,
1629         WLAN_EID_RANN = 126,
1630         WLAN_EID_PREQ = 130,
1631         WLAN_EID_PREP = 131,
1632         WLAN_EID_PERR = 132,
1633         WLAN_EID_PXU = 137,
1634         WLAN_EID_PXUC = 138,
1635         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1636         WLAN_EID_MIC = 140,
1637
1638         WLAN_EID_PWR_CONSTRAINT = 32,
1639         WLAN_EID_PWR_CAPABILITY = 33,
1640         WLAN_EID_TPC_REQUEST = 34,
1641         WLAN_EID_TPC_REPORT = 35,
1642         WLAN_EID_SUPPORTED_CHANNELS = 36,
1643         WLAN_EID_CHANNEL_SWITCH = 37,
1644         WLAN_EID_MEASURE_REQUEST = 38,
1645         WLAN_EID_MEASURE_REPORT = 39,
1646         WLAN_EID_QUIET = 40,
1647         WLAN_EID_IBSS_DFS = 41,
1648
1649         WLAN_EID_ERP_INFO = 42,
1650         WLAN_EID_EXT_SUPP_RATES = 50,
1651
1652         WLAN_EID_HT_CAPABILITY = 45,
1653         WLAN_EID_HT_OPERATION = 61,
1654         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1655
1656         WLAN_EID_RSN = 48,
1657         WLAN_EID_MMIE = 76,
1658         WLAN_EID_VENDOR_SPECIFIC = 221,
1659         WLAN_EID_QOS_PARAMETER = 222,
1660
1661         WLAN_EID_AP_CHAN_REPORT = 51,
1662         WLAN_EID_NEIGHBOR_REPORT = 52,
1663         WLAN_EID_RCPI = 53,
1664         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1665         WLAN_EID_ANTENNA_INFO = 64,
1666         WLAN_EID_RSNI = 65,
1667         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1668         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1669         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1670         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1671         WLAN_EID_MULTIPLE_BSSID = 71,
1672         WLAN_EID_BSS_COEX_2040 = 72,
1673         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1674         WLAN_EID_EXT_CAPABILITY = 127,
1675
1676         WLAN_EID_MOBILITY_DOMAIN = 54,
1677         WLAN_EID_FAST_BSS_TRANSITION = 55,
1678         WLAN_EID_TIMEOUT_INTERVAL = 56,
1679         WLAN_EID_RIC_DATA = 57,
1680         WLAN_EID_RIC_DESCRIPTOR = 75,
1681
1682         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1683         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1684         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1685
1686         WLAN_EID_VHT_CAPABILITY = 191,
1687         WLAN_EID_VHT_OPERATION = 192,
1688
1689         /* 802.11ad */
1690         WLAN_EID_NON_TX_BSSID_CAP =  83,
1691         WLAN_EID_WAKEUP_SCHEDULE = 143,
1692         WLAN_EID_EXT_SCHEDULE = 144,
1693         WLAN_EID_STA_AVAILABILITY = 145,
1694         WLAN_EID_DMG_TSPEC = 146,
1695         WLAN_EID_DMG_AT = 147,
1696         WLAN_EID_DMG_CAP = 148,
1697         WLAN_EID_DMG_OPERATION = 151,
1698         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1699         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1700         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1701         WLAN_EID_AWAKE_WINDOW = 157,
1702         WLAN_EID_MULTI_BAND = 158,
1703         WLAN_EID_ADDBA_EXT = 159,
1704         WLAN_EID_NEXT_PCP_LIST = 160,
1705         WLAN_EID_PCP_HANDOVER = 161,
1706         WLAN_EID_DMG_LINK_MARGIN = 162,
1707         WLAN_EID_SWITCHING_STREAM = 163,
1708         WLAN_EID_SESSION_TRANSITION = 164,
1709         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1710         WLAN_EID_CLUSTER_REPORT = 166,
1711         WLAN_EID_RELAY_CAP = 167,
1712         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1713         WLAN_EID_BEAM_LINK_MAINT = 169,
1714         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1715         WLAN_EID_U_PID = 171,
1716         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1717         WLAN_EID_QUIET_PERIOD_REQ = 175,
1718         WLAN_EID_QUIET_PERIOD_RESP = 177,
1719         WLAN_EID_EPAC_POLICY = 182,
1720         WLAN_EID_CLISTER_TIME_OFF = 183,
1721         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1722 };
1723
1724 /* Action category code */
1725 enum ieee80211_category {
1726         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1727         WLAN_CATEGORY_QOS = 1,
1728         WLAN_CATEGORY_DLS = 2,
1729         WLAN_CATEGORY_BACK = 3,
1730         WLAN_CATEGORY_PUBLIC = 4,
1731         WLAN_CATEGORY_HT = 7,
1732         WLAN_CATEGORY_SA_QUERY = 8,
1733         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1734         WLAN_CATEGORY_TDLS = 12,
1735         WLAN_CATEGORY_MESH_ACTION = 13,
1736         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1737         WLAN_CATEGORY_SELF_PROTECTED = 15,
1738         WLAN_CATEGORY_DMG = 16,
1739         WLAN_CATEGORY_WMM = 17,
1740         WLAN_CATEGORY_FST = 18,
1741         WLAN_CATEGORY_UNPROT_DMG = 20,
1742         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1743         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1744 };
1745
1746 /* SPECTRUM_MGMT action code */
1747 enum ieee80211_spectrum_mgmt_actioncode {
1748         WLAN_ACTION_SPCT_MSR_REQ = 0,
1749         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1750         WLAN_ACTION_SPCT_TPC_REQ = 2,
1751         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1752         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1753 };
1754
1755 /* HT action codes */
1756 enum ieee80211_ht_actioncode {
1757         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1758         WLAN_HT_ACTION_SMPS = 1,
1759         WLAN_HT_ACTION_PSMP = 2,
1760         WLAN_HT_ACTION_PCO_PHASE = 3,
1761         WLAN_HT_ACTION_CSI = 4,
1762         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1763         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1764         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1765 };
1766
1767 /* Self Protected Action codes */
1768 enum ieee80211_self_protected_actioncode {
1769         WLAN_SP_RESERVED = 0,
1770         WLAN_SP_MESH_PEERING_OPEN = 1,
1771         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1772         WLAN_SP_MESH_PEERING_CLOSE = 3,
1773         WLAN_SP_MGK_INFORM = 4,
1774         WLAN_SP_MGK_ACK = 5,
1775 };
1776
1777 /* Mesh action codes */
1778 enum ieee80211_mesh_actioncode {
1779         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1780         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1781         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1782         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1783         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1784         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1785         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1786         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1787         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1788         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1789         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1790 };
1791
1792 /* Security key length */
1793 enum ieee80211_key_len {
1794         WLAN_KEY_LEN_WEP40 = 5,
1795         WLAN_KEY_LEN_WEP104 = 13,
1796         WLAN_KEY_LEN_CCMP = 16,
1797         WLAN_KEY_LEN_TKIP = 32,
1798         WLAN_KEY_LEN_AES_CMAC = 16,
1799 };
1800
1801 /* Public action codes */
1802 enum ieee80211_pub_actioncode {
1803         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1804 };
1805
1806 /* TDLS action codes */
1807 enum ieee80211_tdls_actioncode {
1808         WLAN_TDLS_SETUP_REQUEST = 0,
1809         WLAN_TDLS_SETUP_RESPONSE = 1,
1810         WLAN_TDLS_SETUP_CONFIRM = 2,
1811         WLAN_TDLS_TEARDOWN = 3,
1812         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1813         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1814         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1815         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1816         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1817         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1818         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1819 };
1820
1821 /*
1822  * TDLS capabililites to be enabled in the 5th byte of the
1823  * @WLAN_EID_EXT_CAPABILITY information element
1824  */
1825 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1826 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1827
1828 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1829
1830 /* TDLS specific payload type in the LLC/SNAP header */
1831 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1832
1833 /**
1834  * enum - mesh synchronization method identifier
1835  *
1836  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1837  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1838  *      that will be specified in a vendor specific information element
1839  */
1840 enum {
1841         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1842         IEEE80211_SYNC_METHOD_VENDOR = 255,
1843 };
1844
1845 /**
1846  * enum - mesh path selection protocol identifier
1847  *
1848  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1849  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1850  *      be specified in a vendor specific information element
1851  */
1852 enum {
1853         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1854         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1855 };
1856
1857 /**
1858  * enum - mesh path selection metric identifier
1859  *
1860  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1861  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1862  *      specified in a vendor specific information element
1863  */
1864 enum {
1865         IEEE80211_PATH_METRIC_AIRTIME = 1,
1866         IEEE80211_PATH_METRIC_VENDOR = 255,
1867 };
1868
1869 /**
1870  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1871  *
1872  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1873  *
1874  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1875  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1876  *      this value
1877  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1878  *      the proactive PREQ with proactive PREP subfield set to 0
1879  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1880  *      supports the proactive PREQ with proactive PREP subfield set to 1
1881  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1882  *      the proactive RANN
1883  */
1884 enum ieee80211_root_mode_identifier {
1885         IEEE80211_ROOTMODE_NO_ROOT = 0,
1886         IEEE80211_ROOTMODE_ROOT = 1,
1887         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1888         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1889         IEEE80211_PROACTIVE_RANN = 4,
1890 };
1891
1892 /*
1893  * IEEE 802.11-2007 7.3.2.9 Country information element
1894  *
1895  * Minimum length is 8 octets, ie len must be evenly
1896  * divisible by 2
1897  */
1898
1899 /* Although the spec says 8 I'm seeing 6 in practice */
1900 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1901
1902 /* The Country String field of the element shall be 3 octets in length */
1903 #define IEEE80211_COUNTRY_STRING_LEN    3
1904
1905 /*
1906  * For regulatory extension stuff see IEEE 802.11-2007
1907  * Annex I (page 1141) and Annex J (page 1147). Also
1908  * review 7.3.2.9.
1909  *
1910  * When dot11RegulatoryClassesRequired is true and the
1911  * first_channel/reg_extension_id is >= 201 then the IE
1912  * compromises of the 'ext' struct represented below:
1913  *
1914  *  - Regulatory extension ID - when generating IE this just needs
1915  *    to be monotonically increasing for each triplet passed in
1916  *    the IE
1917  *  - Regulatory class - index into set of rules
1918  *  - Coverage class - index into air propagation time (Table 7-27),
1919  *    in microseconds, you can compute the air propagation time from
1920  *    the index by multiplying by 3, so index 10 yields a propagation
1921  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1922  *    yet. A value of 0 inicates air propagation of <= 1 us.
1923  *
1924  *  See also Table I.2 for Emission limit sets and table
1925  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1926  *  a reg_class to an emission limit set and behavior limit set.
1927  */
1928 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1929
1930 /*
1931  *  Channels numbers in the IE must be monotonically increasing
1932  *  if dot11RegulatoryClassesRequired is not true.
1933  *
1934  *  If dot11RegulatoryClassesRequired is true consecutive
1935  *  subband triplets following a regulatory triplet shall
1936  *  have monotonically increasing first_channel number fields.
1937  *
1938  *  Channel numbers shall not overlap.
1939  *
1940  *  Note that max_power is signed.
1941  */
1942 struct ieee80211_country_ie_triplet {
1943         union {
1944                 struct {
1945                         u8 first_channel;
1946                         u8 num_channels;
1947                         s8 max_power;
1948                 } __packed chans;
1949                 struct {
1950                         u8 reg_extension_id;
1951                         u8 reg_class;
1952                         u8 coverage_class;
1953                 } __packed ext;
1954         };
1955 } __packed;
1956
1957 enum ieee80211_timeout_interval_type {
1958         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1959         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1960         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1961 };
1962
1963 /**
1964  * struct ieee80211_timeout_interval_ie - Timeout Interval element
1965  * @type: type, see &enum ieee80211_timeout_interval_type
1966  * @value: timeout interval value
1967  */
1968 struct ieee80211_timeout_interval_ie {
1969         u8 type;
1970         __le32 value;
1971 } __packed;
1972
1973 /* BACK action code */
1974 enum ieee80211_back_actioncode {
1975         WLAN_ACTION_ADDBA_REQ = 0,
1976         WLAN_ACTION_ADDBA_RESP = 1,
1977         WLAN_ACTION_DELBA = 2,
1978 };
1979
1980 /* BACK (block-ack) parties */
1981 enum ieee80211_back_parties {
1982         WLAN_BACK_RECIPIENT = 0,
1983         WLAN_BACK_INITIATOR = 1,
1984 };
1985
1986 /* SA Query action */
1987 enum ieee80211_sa_query_action {
1988         WLAN_ACTION_SA_QUERY_REQUEST = 0,
1989         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1990 };
1991
1992
1993 /* cipher suite selectors */
1994 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1995 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1996 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1997 /* reserved:                            0x000FAC03 */
1998 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1999 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2000 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2001 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2002
2003 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2004
2005 /* AKM suite selectors */
2006 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2007 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2008 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
2009 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2010
2011 #define WLAN_MAX_KEY_LEN                32
2012
2013 #define WLAN_PMKID_LEN                  16
2014
2015 #define WLAN_OUI_WFA                    0x506f9a
2016 #define WLAN_OUI_TYPE_WFA_P2P           9
2017 #define WLAN_OUI_MICROSOFT              0x0050f2
2018 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2019 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2020 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2021
2022 /*
2023  * WMM/802.11e Tspec Element
2024  */
2025 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2026 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2027
2028 enum ieee80211_tspec_status_code {
2029         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2030         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2031 };
2032
2033 struct ieee80211_tspec_ie {
2034         u8 element_id;
2035         u8 len;
2036         u8 oui[3];
2037         u8 oui_type;
2038         u8 oui_subtype;
2039         u8 version;
2040         __le16 tsinfo;
2041         u8 tsinfo_resvd;
2042         __le16 nominal_msdu;
2043         __le16 max_msdu;
2044         __le32 min_service_int;
2045         __le32 max_service_int;
2046         __le32 inactivity_int;
2047         __le32 suspension_int;
2048         __le32 service_start_time;
2049         __le32 min_data_rate;
2050         __le32 mean_data_rate;
2051         __le32 peak_data_rate;
2052         __le32 max_burst_size;
2053         __le32 delay_bound;
2054         __le32 min_phy_rate;
2055         __le16 sba;
2056         __le16 medium_time;
2057 } __packed;
2058
2059 /**
2060  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2061  * @hdr: the frame
2062  *
2063  * The qos ctrl bytes come after the frame_control, duration, seq_num
2064  * and 3 or 4 addresses of length ETH_ALEN.
2065  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2066  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2067  */
2068 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2069 {
2070         if (ieee80211_has_a4(hdr->frame_control))
2071                 return (u8 *)hdr + 30;
2072         else
2073                 return (u8 *)hdr + 24;
2074 }
2075
2076 /**
2077  * ieee80211_get_SA - get pointer to SA
2078  * @hdr: the frame
2079  *
2080  * Given an 802.11 frame, this function returns the offset
2081  * to the source address (SA). It does not verify that the
2082  * header is long enough to contain the address, and the
2083  * header must be long enough to contain the frame control
2084  * field.
2085  */
2086 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2087 {
2088         if (ieee80211_has_a4(hdr->frame_control))
2089                 return hdr->addr4;
2090         if (ieee80211_has_fromds(hdr->frame_control))
2091                 return hdr->addr3;
2092         return hdr->addr2;
2093 }
2094
2095 /**
2096  * ieee80211_get_DA - get pointer to DA
2097  * @hdr: the frame
2098  *
2099  * Given an 802.11 frame, this function returns the offset
2100  * to the destination address (DA). It does not verify that
2101  * the header is long enough to contain the address, and the
2102  * header must be long enough to contain the frame control
2103  * field.
2104  */
2105 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2106 {
2107         if (ieee80211_has_tods(hdr->frame_control))
2108                 return hdr->addr3;
2109         else
2110                 return hdr->addr1;
2111 }
2112
2113 /**
2114  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2115  * @hdr: the frame (buffer must include at least the first octet of payload)
2116  */
2117 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2118 {
2119         if (ieee80211_is_disassoc(hdr->frame_control) ||
2120             ieee80211_is_deauth(hdr->frame_control))
2121                 return true;
2122
2123         if (ieee80211_is_action(hdr->frame_control)) {
2124                 u8 *category;
2125
2126                 /*
2127                  * Action frames, excluding Public Action frames, are Robust
2128                  * Management Frames. However, if we are looking at a Protected
2129                  * frame, skip the check since the data may be encrypted and
2130                  * the frame has already been found to be a Robust Management
2131                  * Frame (by the other end).
2132                  */
2133                 if (ieee80211_has_protected(hdr->frame_control))
2134                         return true;
2135                 category = ((u8 *) hdr) + 24;
2136                 return *category != WLAN_CATEGORY_PUBLIC &&
2137                         *category != WLAN_CATEGORY_HT &&
2138                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2139                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2140         }
2141
2142         return false;
2143 }
2144
2145 /**
2146  * ieee80211_is_public_action - check if frame is a public action frame
2147  * @hdr: the frame
2148  * @len: length of the frame
2149  */
2150 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2151                                               size_t len)
2152 {
2153         struct ieee80211_mgmt *mgmt = (void *)hdr;
2154
2155         if (len < IEEE80211_MIN_ACTION_SIZE)
2156                 return false;
2157         if (!ieee80211_is_action(hdr->frame_control))
2158                 return false;
2159         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2160 }
2161
2162 /**
2163  * ieee80211_dsss_chan_to_freq - get channel center frequency
2164  * @channel: the DSSS channel
2165  *
2166  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2167  * Ref IEEE 802.11-2007 section 15.6
2168  */
2169 static inline int ieee80211_dsss_chan_to_freq(int channel)
2170 {
2171         if ((channel > 0) && (channel < 14))
2172                 return 2407 + (channel * 5);
2173         else if (channel == 14)
2174                 return 2484;
2175         else
2176                 return -1;
2177 }
2178
2179 /**
2180  * ieee80211_freq_to_dsss_chan - get channel
2181  * @freq: the frequency
2182  *
2183  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2184  * Ref IEEE 802.11-2007 section 15.6
2185  *
2186  * This routine selects the channel with the closest center frequency.
2187  */
2188 static inline int ieee80211_freq_to_dsss_chan(int freq)
2189 {
2190         if ((freq >= 2410) && (freq < 2475))
2191                 return (freq - 2405) / 5;
2192         else if ((freq >= 2482) && (freq < 2487))
2193                 return 14;
2194         else
2195                 return -1;
2196 }
2197
2198 /**
2199  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2200  * @tu: the TUs
2201  */
2202 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2203 {
2204         return 1024 * tu;
2205 }
2206
2207 /**
2208  * ieee80211_check_tim - check if AID bit is set in TIM
2209  * @tim: the TIM IE
2210  * @tim_len: length of the TIM IE
2211  * @aid: the AID to look for
2212  */
2213 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2214                                        u8 tim_len, u16 aid)
2215 {
2216         u8 mask;
2217         u8 indexn0, indexn1, indexn2;
2218
2219         if (unlikely(!tim || tim_len < sizeof(*tim)))
2220                 return false;
2221
2222         aid &= 0x3fff;
2223         indexn0 = aid / 8;
2224         mask  = 1 << (aid & 7);
2225
2226         indexn1 = tim->bitmap_ctrl & 0xfe;
2227         indexn2 = tim_len + indexn1 - 4;
2228
2229         if (indexn0 < indexn1 || indexn0 > indexn2)
2230                 return false;
2231
2232         indexn0 -= indexn1;
2233
2234         return !!(tim->virtual_map[indexn0] & mask);
2235 }
2236
2237 #endif /* __LINUX_IEEE80211_H */