include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef LINUX_IEEE80211_H
  16 #define LINUX_IEEE80211_H
  17
  18 #include <linux/types.h>
  19 #include <linux/if_ether.h>
  20 #include <asm/byteorder.h>
  21
  22 /*
  23  * DS bit usage
  24  *
  25  * TA = transmitter address
  26  * RA = receiver address
  27  * DA = destination address
  28  * SA = source address
  29  *
  30  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  31  * -----------------------------------------------------------------
  32  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  33  *  0       1       DA      BSSID   SA      -       AP -> STA
  34  *  1       0       BSSID   SA      DA      -       AP <- STA
  35  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  36  */
  37
  38 #define FCS_LEN 4
  39
  40 #define IEEE80211_FCTL_VERS             0x0003
  41 #define IEEE80211_FCTL_FTYPE            0x000c
  42 #define IEEE80211_FCTL_STYPE            0x00f0
  43 #define IEEE80211_FCTL_TODS             0x0100
  44 #define IEEE80211_FCTL_FROMDS           0x0200
  45 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  46 #define IEEE80211_FCTL_RETRY            0x0800
  47 #define IEEE80211_FCTL_PM               0x1000
  48 #define IEEE80211_FCTL_MOREDATA         0x2000
  49 #define IEEE80211_FCTL_PROTECTED        0x4000
  50 #define IEEE80211_FCTL_ORDER            0x8000
  51 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  52
  53 #define IEEE80211_SCTL_FRAG             0x000F
  54 #define IEEE80211_SCTL_SEQ              0xFFF0
  55
  56 #define IEEE80211_FTYPE_MGMT            0x0000
  57 #define IEEE80211_FTYPE_CTL             0x0004
  58 #define IEEE80211_FTYPE_DATA            0x0008
  59 #define IEEE80211_FTYPE_EXT             0x000c
  60
  61 /* management */
  62 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  63 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  64 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  65 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  66 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  67 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  68 #define IEEE80211_STYPE_BEACON          0x0080
  69 #define IEEE80211_STYPE_ATIM            0x0090
  70 #define IEEE80211_STYPE_DISASSOC        0x00A0
  71 #define IEEE80211_STYPE_AUTH            0x00B0
  72 #define IEEE80211_STYPE_DEAUTH          0x00C0
  73 #define IEEE80211_STYPE_ACTION          0x00D0
  74
  75 /* control */
  76 #define IEEE80211_STYPE_CTL_EXT         0x0060
  77 #define IEEE80211_STYPE_BACK_REQ        0x0080
  78 #define IEEE80211_STYPE_BACK            0x0090
  79 #define IEEE80211_STYPE_PSPOLL          0x00A0
  80 #define IEEE80211_STYPE_RTS             0x00B0
  81 #define IEEE80211_STYPE_CTS             0x00C0
  82 #define IEEE80211_STYPE_ACK             0x00D0
  83 #define IEEE80211_STYPE_CFEND           0x00E0
  84 #define IEEE80211_STYPE_CFENDACK        0x00F0
  85
  86 /* data */
  87 #define IEEE80211_STYPE_DATA                    0x0000
  88 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  89 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  90 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  91 #define IEEE80211_STYPE_NULLFUNC                0x0040
  92 #define IEEE80211_STYPE_CFACK                   0x0050
  93 #define IEEE80211_STYPE_CFPOLL                  0x0060
  94 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  95 #define IEEE80211_STYPE_QOS_DATA                0x0080
  96 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  97 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  98 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  99 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 100 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 101 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 102 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 103
 104 /* extension, added by 802.11ad */
 105 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 106
 107 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 108 #define IEEE80211_CTL_EXT_POLL          0x2000
 109 #define IEEE80211_CTL_EXT_SPR           0x3000
 110 #define IEEE80211_CTL_EXT_GRANT 0x4000
 111 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 112 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 113 #define IEEE80211_CTL_EXT_SSW           0x8000
 114 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 115 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 116
 117
 118 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 119 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 120 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 121
 122 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 123 {
 124         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 125 }
 126
 127 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 128 {
 129         return (sn1 + sn2) & IEEE80211_SN_MASK;
 130 }
 131
 132 static inline u16 ieee80211_sn_inc(u16 sn)
 133 {
 134         return ieee80211_sn_add(sn, 1);
 135 }
 136
 137 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 138 {
 139         return (sn1 - sn2) & IEEE80211_SN_MASK;
 140 }
 141
 142 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 143 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 144
 145 /* miscellaneous IEEE 802.11 constants */
 146 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 147 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 148 #define IEEE80211_MAX_AID               2007
 149 #define IEEE80211_MAX_TIM_LEN           251
 150 #define IEEE80211_MAX_MESH_PEERINGS     63
 151 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 152    6.2.1.1.2.
 153
 154    802.11e clarifies the figure in section 7.1.2. The frame body is
 155    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 156 #define IEEE80211_MAX_DATA_LEN          2304
 157 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 158  * to 7920 bytes, see 8.2.3 General frame format
 159  */
 160 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 161 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 162 #define IEEE80211_MAX_FRAME_LEN         2352
 163
 164 #define IEEE80211_MAX_SSID_LEN          32
 165
 166 #define IEEE80211_MAX_MESH_ID_LEN       32
 167
 168 #define IEEE80211_NUM_TIDS              16
 169
 170 #define IEEE80211_QOS_CTL_LEN           2
 171 /* 1d tag mask */
 172 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 173 /* TID mask */
 174 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 175 /* EOSP */
 176 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 177 /* ACK policy */
 178 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 179 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 180 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 181 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 182 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 183 /* A-MSDU 802.11n */
 184 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 185 /* Mesh Control 802.11s */
 186 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 187
 188 /* Mesh Power Save Level */
 189 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 190 /* Mesh Receiver Service Period Initiated */
 191 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 192
 193 /* U-APSD queue for WMM IEs sent by AP */
 194 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 195 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 196
 197 /* U-APSD queues for WMM IEs sent by STA */
 198 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 199 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 200 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 201 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 202 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 203
 204 /* U-APSD max SP length for WMM IEs sent by STA */
 205 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 206 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 207 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 208 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 209 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 210 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 211
 212 #define IEEE80211_HT_CTL_LEN            4
 213
 214 struct ieee80211_hdr {
 215         __le16 frame_control;
 216         __le16 duration_id;
 217         u8 addr1[ETH_ALEN];
 218         u8 addr2[ETH_ALEN];
 219         u8 addr3[ETH_ALEN];
 220         __le16 seq_ctrl;
 221         u8 addr4[ETH_ALEN];
 222 } __packed __aligned(2);
 223
 224 struct ieee80211_hdr_3addr {
 225         __le16 frame_control;
 226         __le16 duration_id;
 227         u8 addr1[ETH_ALEN];
 228         u8 addr2[ETH_ALEN];
 229         u8 addr3[ETH_ALEN];
 230         __le16 seq_ctrl;
 231 } __packed __aligned(2);
 232
 233 struct ieee80211_qos_hdr {
 234         __le16 frame_control;
 235         __le16 duration_id;
 236         u8 addr1[ETH_ALEN];
 237         u8 addr2[ETH_ALEN];
 238         u8 addr3[ETH_ALEN];
 239         __le16 seq_ctrl;
 240         __le16 qos_ctrl;
 241 } __packed __aligned(2);
 242
 243 /**
 244  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 245  * @fc: frame control bytes in little-endian byteorder
 246  */
 247 static inline int ieee80211_has_tods(__le16 fc)
 248 {
 249         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 250 }
 251
 252 /**
 253  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 254  * @fc: frame control bytes in little-endian byteorder
 255  */
 256 static inline int ieee80211_has_fromds(__le16 fc)
 257 {
 258         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 259 }
 260
 261 /**
 262  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 263  * @fc: frame control bytes in little-endian byteorder
 264  */
 265 static inline int ieee80211_has_a4(__le16 fc)
 266 {
 267         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 268         return (fc & tmp) == tmp;
 269 }
 270
 271 /**
 272  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 273  * @fc: frame control bytes in little-endian byteorder
 274  */
 275 static inline int ieee80211_has_morefrags(__le16 fc)
 276 {
 277         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 278 }
 279
 280 /**
 281  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 282  * @fc: frame control bytes in little-endian byteorder
 283  */
 284 static inline int ieee80211_has_retry(__le16 fc)
 285 {
 286         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 287 }
 288
 289 /**
 290  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 291  * @fc: frame control bytes in little-endian byteorder
 292  */
 293 static inline int ieee80211_has_pm(__le16 fc)
 294 {
 295         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 296 }
 297
 298 /**
 299  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 300  * @fc: frame control bytes in little-endian byteorder
 301  */
 302 static inline int ieee80211_has_moredata(__le16 fc)
 303 {
 304         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 305 }
 306
 307 /**
 308  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 309  * @fc: frame control bytes in little-endian byteorder
 310  */
 311 static inline int ieee80211_has_protected(__le16 fc)
 312 {
 313         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 314 }
 315
 316 /**
 317  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 318  * @fc: frame control bytes in little-endian byteorder
 319  */
 320 static inline int ieee80211_has_order(__le16 fc)
 321 {
 322         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 323 }
 324
 325 /**
 326  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 327  * @fc: frame control bytes in little-endian byteorder
 328  */
 329 static inline int ieee80211_is_mgmt(__le16 fc)
 330 {
 331         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 332                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 333 }
 334
 335 /**
 336  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 337  * @fc: frame control bytes in little-endian byteorder
 338  */
 339 static inline int ieee80211_is_ctl(__le16 fc)
 340 {
 341         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 342                cpu_to_le16(IEEE80211_FTYPE_CTL);
 343 }
 344
 345 /**
 346  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 347  * @fc: frame control bytes in little-endian byteorder
 348  */
 349 static inline int ieee80211_is_data(__le16 fc)
 350 {
 351         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 352                cpu_to_le16(IEEE80211_FTYPE_DATA);
 353 }
 354
 355 /**
 356  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 357  * @fc: frame control bytes in little-endian byteorder
 358  */
 359 static inline int ieee80211_is_data_qos(__le16 fc)
 360 {
 361         /*
 362          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 363          * to check the one bit
 364          */
 365         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 366                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 367 }
 368
 369 /**
 370  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 371  * @fc: frame control bytes in little-endian byteorder
 372  */
 373 static inline int ieee80211_is_data_present(__le16 fc)
 374 {
 375         /*
 376          * mask with 0x40 and test that that bit is clear to only return true
 377          * for the data-containing substypes.
 378          */
 379         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 380                cpu_to_le16(IEEE80211_FTYPE_DATA);
 381 }
 382
 383 /**
 384  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 385  * @fc: frame control bytes in little-endian byteorder
 386  */
 387 static inline int ieee80211_is_assoc_req(__le16 fc)
 388 {
 389         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 390                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 391 }
 392
 393 /**
 394  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 395  * @fc: frame control bytes in little-endian byteorder
 396  */
 397 static inline int ieee80211_is_assoc_resp(__le16 fc)
 398 {
 399         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 400                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 401 }
 402
 403 /**
 404  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 405  * @fc: frame control bytes in little-endian byteorder
 406  */
 407 static inline int ieee80211_is_reassoc_req(__le16 fc)
 408 {
 409         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 410                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 411 }
 412
 413 /**
 414  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 415  * @fc: frame control bytes in little-endian byteorder
 416  */
 417 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 418 {
 419         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 420                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 421 }
 422
 423 /**
 424  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 425  * @fc: frame control bytes in little-endian byteorder
 426  */
 427 static inline int ieee80211_is_probe_req(__le16 fc)
 428 {
 429         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 430                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 431 }
 432
 433 /**
 434  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 435  * @fc: frame control bytes in little-endian byteorder
 436  */
 437 static inline int ieee80211_is_probe_resp(__le16 fc)
 438 {
 439         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 440                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 441 }
 442
 443 /**
 444  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 445  * @fc: frame control bytes in little-endian byteorder
 446  */
 447 static inline int ieee80211_is_beacon(__le16 fc)
 448 {
 449         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 450                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 451 }
 452
 453 /**
 454  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 455  * @fc: frame control bytes in little-endian byteorder
 456  */
 457 static inline int ieee80211_is_atim(__le16 fc)
 458 {
 459         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 460                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 461 }
 462
 463 /**
 464  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 465  * @fc: frame control bytes in little-endian byteorder
 466  */
 467 static inline int ieee80211_is_disassoc(__le16 fc)
 468 {
 469         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 470                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 471 }
 472
 473 /**
 474  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 475  * @fc: frame control bytes in little-endian byteorder
 476  */
 477 static inline int ieee80211_is_auth(__le16 fc)
 478 {
 479         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 480                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 481 }
 482
 483 /**
 484  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 485  * @fc: frame control bytes in little-endian byteorder
 486  */
 487 static inline int ieee80211_is_deauth(__le16 fc)
 488 {
 489         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 490                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 491 }
 492
 493 /**
 494  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 495  * @fc: frame control bytes in little-endian byteorder
 496  */
 497 static inline int ieee80211_is_action(__le16 fc)
 498 {
 499         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 500                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 501 }
 502
 503 /**
 504  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 505  * @fc: frame control bytes in little-endian byteorder
 506  */
 507 static inline int ieee80211_is_back_req(__le16 fc)
 508 {
 509         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 510                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 511 }
 512
 513 /**
 514  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 515  * @fc: frame control bytes in little-endian byteorder
 516  */
 517 static inline int ieee80211_is_back(__le16 fc)
 518 {
 519         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 520                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 521 }
 522
 523 /**
 524  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 525  * @fc: frame control bytes in little-endian byteorder
 526  */
 527 static inline int ieee80211_is_pspoll(__le16 fc)
 528 {
 529         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 530                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 531 }
 532
 533 /**
 534  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 535  * @fc: frame control bytes in little-endian byteorder
 536  */
 537 static inline int ieee80211_is_rts(__le16 fc)
 538 {
 539         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 540                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 541 }
 542
 543 /**
 544  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 545  * @fc: frame control bytes in little-endian byteorder
 546  */
 547 static inline int ieee80211_is_cts(__le16 fc)
 548 {
 549         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 550                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 551 }
 552
 553 /**
 554  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 555  * @fc: frame control bytes in little-endian byteorder
 556  */
 557 static inline int ieee80211_is_ack(__le16 fc)
 558 {
 559         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 560                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 561 }
 562
 563 /**
 564  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 565  * @fc: frame control bytes in little-endian byteorder
 566  */
 567 static inline int ieee80211_is_cfend(__le16 fc)
 568 {
 569         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 570                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 571 }
 572
 573 /**
 574  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 575  * @fc: frame control bytes in little-endian byteorder
 576  */
 577 static inline int ieee80211_is_cfendack(__le16 fc)
 578 {
 579         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 580                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 581 }
 582
 583 /**
 584  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 585  * @fc: frame control bytes in little-endian byteorder
 586  */
 587 static inline int ieee80211_is_nullfunc(__le16 fc)
 588 {
 589         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 590                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 591 }
 592
 593 /**
 594  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 595  * @fc: frame control bytes in little-endian byteorder
 596  */
 597 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 598 {
 599         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 600                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 601 }
 602
 603 /**
 604  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 605  * @fc: frame control field in little-endian byteorder
 606  */
 607 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 608 {
 609         /* IEEE 802.11-2012, definition of "bufferable management frame";
 610          * note that this ignores the IBSS special case. */
 611         return ieee80211_is_mgmt(fc) &&
 612                (ieee80211_is_action(fc) ||
 613                 ieee80211_is_disassoc(fc) ||
 614                 ieee80211_is_deauth(fc));
 615 }
 616
 617 /**
 618  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 619  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 620  */
 621 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 622 {
 623         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 624 }
 625
 626 struct ieee80211s_hdr {
 627         u8 flags;
 628         u8 ttl;
 629         __le32 seqnum;
 630         u8 eaddr1[ETH_ALEN];
 631         u8 eaddr2[ETH_ALEN];
 632 } __packed __aligned(2);
 633
 634 /* Mesh flags */
 635 #define MESH_FLAGS_AE_A4        0x1
 636 #define MESH_FLAGS_AE_A5_A6     0x2
 637 #define MESH_FLAGS_AE           0x3
 638 #define MESH_FLAGS_PS_DEEP      0x4
 639
 640 /**
 641  * enum ieee80211_preq_flags - mesh PREQ element flags
 642  *
 643  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 644  */
 645 enum ieee80211_preq_flags {
 646         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 647 };
 648
 649 /**
 650  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 651  *
 652  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 653  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 654  */
 655 enum ieee80211_preq_target_flags {
 656         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 657         IEEE80211_PREQ_USN_FLAG = 1<<2,
 658 };
 659
 660 /**
 661  * struct ieee80211_quiet_ie
 662  *
 663  * This structure refers to "Quiet information element"
 664  */
 665 struct ieee80211_quiet_ie {
 666         u8 count;
 667         u8 period;
 668         __le16 duration;
 669         __le16 offset;
 670 } __packed;
 671
 672 /**
 673  * struct ieee80211_msrment_ie
 674  *
 675  * This structure refers to "Measurement Request/Report information element"
 676  */
 677 struct ieee80211_msrment_ie {
 678         u8 token;
 679         u8 mode;
 680         u8 type;
 681         u8 request[0];
 682 } __packed;
 683
 684 /**
 685  * struct ieee80211_channel_sw_ie
 686  *
 687  * This structure refers to "Channel Switch Announcement information element"
 688  */
 689 struct ieee80211_channel_sw_ie {
 690         u8 mode;
 691         u8 new_ch_num;
 692         u8 count;
 693 } __packed;
 694
 695 /**
 696  * struct ieee80211_ext_chansw_ie
 697  *
 698  * This structure represents the "Extended Channel Switch Announcement element"
 699  */
 700 struct ieee80211_ext_chansw_ie {
 701         u8 mode;
 702         u8 new_operating_class;
 703         u8 new_ch_num;
 704         u8 count;
 705 } __packed;
 706
 707 /**
 708  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 709  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 710  *      values here
 711  * This structure represents the "Secondary Channel Offset element"
 712  */
 713 struct ieee80211_sec_chan_offs_ie {
 714         u8 sec_chan_offs;
 715 } __packed;
 716
 717 /**
 718  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 719  *
 720  * This structure represents the "Mesh Channel Switch Paramters element"
 721  */
 722 struct ieee80211_mesh_chansw_params_ie {
 723         u8 mesh_ttl;
 724         u8 mesh_flags;
 725         __le16 mesh_reason;
 726         __le16 mesh_pre_value;
 727 } __packed;
 728
 729 /**
 730  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 731  */
 732 struct ieee80211_wide_bw_chansw_ie {
 733         u8 new_channel_width;
 734         u8 new_center_freq_seg0, new_center_freq_seg1;
 735 } __packed;
 736
 737 /**
 738  * struct ieee80211_tim
 739  *
 740  * This structure refers to "Traffic Indication Map information element"
 741  */
 742 struct ieee80211_tim_ie {
 743         u8 dtim_count;
 744         u8 dtim_period;
 745         u8 bitmap_ctrl;
 746         /* variable size: 1 - 251 bytes */
 747         u8 virtual_map[1];
 748 } __packed;
 749
 750 /**
 751  * struct ieee80211_meshconf_ie
 752  *
 753  * This structure refers to "Mesh Configuration information element"
 754  */
 755 struct ieee80211_meshconf_ie {
 756         u8 meshconf_psel;
 757         u8 meshconf_pmetric;
 758         u8 meshconf_congest;
 759         u8 meshconf_synch;
 760         u8 meshconf_auth;
 761         u8 meshconf_form;
 762         u8 meshconf_cap;
 763 } __packed;
 764
 765 /**
 766  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 767  *
 768  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 769  *      additional mesh peerings with other mesh STAs
 770  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 771  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 772  *      is ongoing
 773  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 774  *      neighbors in deep sleep mode
 775  */
 776 enum mesh_config_capab_flags {
 777         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 778         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 779         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 780         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 781 };
 782
 783 /**
 784  * mesh channel switch parameters element's flag indicator
 785  *
 786  */
 787 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 788 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 789 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 790
 791 /**
 792  * struct ieee80211_rann_ie
 793  *
 794  * This structure refers to "Root Announcement information element"
 795  */
 796 struct ieee80211_rann_ie {
 797         u8 rann_flags;
 798         u8 rann_hopcount;
 799         u8 rann_ttl;
 800         u8 rann_addr[ETH_ALEN];
 801         __le32 rann_seq;
 802         __le32 rann_interval;
 803         __le32 rann_metric;
 804 } __packed;
 805
 806 enum ieee80211_rann_flags {
 807         RANN_FLAG_IS_GATE = 1 << 0,
 808 };
 809
 810 enum ieee80211_ht_chanwidth_values {
 811         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 812         IEEE80211_HT_CHANWIDTH_ANY = 1,
 813 };
 814
 815 /**
 816  * enum ieee80211_opmode_bits - VHT operating mode field bits
 817  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 818  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 819  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 820  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 821  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 822  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 823  *      (the NSS value is the value of this field + 1)
 824  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 825  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 826  *      using a beamforming steering matrix
 827  */
 828 enum ieee80211_vht_opmode_bits {
 829         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 830         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 831         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 832         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 833         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 834         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 835         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 836         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 837 };
 838
 839 #define WLAN_SA_QUERY_TR_ID_LEN 2
 840
 841 struct ieee80211_mgmt {
 842         __le16 frame_control;
 843         __le16 duration;
 844         u8 da[ETH_ALEN];
 845         u8 sa[ETH_ALEN];
 846         u8 bssid[ETH_ALEN];
 847         __le16 seq_ctrl;
 848         union {
 849                 struct {
 850                         __le16 auth_alg;
 851                         __le16 auth_transaction;
 852                         __le16 status_code;
 853                         /* possibly followed by Challenge text */
 854                         u8 variable[0];
 855                 } __packed auth;
 856                 struct {
 857                         __le16 reason_code;
 858                 } __packed deauth;
 859                 struct {
 860                         __le16 capab_info;
 861                         __le16 listen_interval;
 862                         /* followed by SSID and Supported rates */
 863                         u8 variable[0];
 864                 } __packed assoc_req;
 865                 struct {
 866                         __le16 capab_info;
 867                         __le16 status_code;
 868                         __le16 aid;
 869                         /* followed by Supported rates */
 870                         u8 variable[0];
 871                 } __packed assoc_resp, reassoc_resp;
 872                 struct {
 873                         __le16 capab_info;
 874                         __le16 listen_interval;
 875                         u8 current_ap[ETH_ALEN];
 876                         /* followed by SSID and Supported rates */
 877                         u8 variable[0];
 878                 } __packed reassoc_req;
 879                 struct {
 880                         __le16 reason_code;
 881                 } __packed disassoc;
 882                 struct {
 883                         __le64 timestamp;
 884                         __le16 beacon_int;
 885                         __le16 capab_info;
 886                         /* followed by some of SSID, Supported rates,
 887                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 888                         u8 variable[0];
 889                 } __packed beacon;
 890                 struct {
 891                         /* only variable items: SSID, Supported rates */
 892                         u8 variable[0];
 893                 } __packed probe_req;
 894                 struct {
 895                         __le64 timestamp;
 896                         __le16 beacon_int;
 897                         __le16 capab_info;
 898                         /* followed by some of SSID, Supported rates,
 899                          * FH Params, DS Params, CF Params, IBSS Params */
 900                         u8 variable[0];
 901                 } __packed probe_resp;
 902                 struct {
 903                         u8 category;
 904                         union {
 905                                 struct {
 906                                         u8 action_code;
 907                                         u8 dialog_token;
 908                                         u8 status_code;
 909                                         u8 variable[0];
 910                                 } __packed wme_action;
 911                                 struct{
 912                                         u8 action_code;
 913                                         u8 variable[0];
 914                                 } __packed chan_switch;
 915                                 struct{
 916                                         u8 action_code;
 917                                         struct ieee80211_ext_chansw_ie data;
 918                                         u8 variable[0];
 919                                 } __packed ext_chan_switch;
 920                                 struct{
 921                                         u8 action_code;
 922                                         u8 dialog_token;
 923                                         u8 element_id;
 924                                         u8 length;
 925                                         struct ieee80211_msrment_ie msr_elem;
 926                                 } __packed measurement;
 927                                 struct{
 928                                         u8 action_code;
 929                                         u8 dialog_token;
 930                                         __le16 capab;
 931                                         __le16 timeout;
 932                                         __le16 start_seq_num;
 933                                 } __packed addba_req;
 934                                 struct{
 935                                         u8 action_code;
 936                                         u8 dialog_token;
 937                                         __le16 status;
 938                                         __le16 capab;
 939                                         __le16 timeout;
 940                                 } __packed addba_resp;
 941                                 struct{
 942                                         u8 action_code;
 943                                         __le16 params;
 944                                         __le16 reason_code;
 945                                 } __packed delba;
 946                                 struct {
 947                                         u8 action_code;
 948                                         u8 variable[0];
 949                                 } __packed self_prot;
 950                                 struct{
 951                                         u8 action_code;
 952                                         u8 variable[0];
 953                                 } __packed mesh_action;
 954                                 struct {
 955                                         u8 action;
 956                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 957                                 } __packed sa_query;
 958                                 struct {
 959                                         u8 action;
 960                                         u8 smps_control;
 961                                 } __packed ht_smps;
 962                                 struct {
 963                                         u8 action_code;
 964                                         u8 chanwidth;
 965                                 } __packed ht_notify_cw;
 966                                 struct {
 967                                         u8 action_code;
 968                                         u8 dialog_token;
 969                                         __le16 capability;
 970                                         u8 variable[0];
 971                                 } __packed tdls_discover_resp;
 972                                 struct {
 973                                         u8 action_code;
 974                                         u8 operating_mode;
 975                                 } __packed vht_opmode_notif;
 976                         } u;
 977                 } __packed action;
 978         } u;
 979 } __packed __aligned(2);
 980
 981 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 982 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 983
 984 /* mgmt header + 1 byte category code */
 985 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 986
 987
 988 /* Management MIC information element (IEEE 802.11w) */
 989 struct ieee80211_mmie {
 990         u8 element_id;
 991         u8 length;
 992         __le16 key_id;
 993         u8 sequence_number[6];
 994         u8 mic[8];
 995 } __packed;
 996
 997 struct ieee80211_vendor_ie {
 998         u8 element_id;
 999         u8 len;
1000         u8 oui[3];
1001         u8 oui_type;
1002 } __packed;
1003
1004 /* Control frames */
1005 struct ieee80211_rts {
1006         __le16 frame_control;
1007         __le16 duration;
1008         u8 ra[ETH_ALEN];
1009         u8 ta[ETH_ALEN];
1010 } __packed __aligned(2);
1011
1012 struct ieee80211_cts {
1013         __le16 frame_control;
1014         __le16 duration;
1015         u8 ra[ETH_ALEN];
1016 } __packed __aligned(2);
1017
1018 struct ieee80211_pspoll {
1019         __le16 frame_control;
1020         __le16 aid;
1021         u8 bssid[ETH_ALEN];
1022         u8 ta[ETH_ALEN];
1023 } __packed __aligned(2);
1024
1025 /* TDLS */
1026
1027 /* Link-id information element */
1028 struct ieee80211_tdls_lnkie {
1029         u8 ie_type; /* Link Identifier IE */
1030         u8 ie_len;
1031         u8 bssid[ETH_ALEN];
1032         u8 init_sta[ETH_ALEN];
1033         u8 resp_sta[ETH_ALEN];
1034 } __packed;
1035
1036 struct ieee80211_tdls_data {
1037         u8 da[ETH_ALEN];
1038         u8 sa[ETH_ALEN];
1039         __be16 ether_type;
1040         u8 payload_type;
1041         u8 category;
1042         u8 action_code;
1043         union {
1044                 struct {
1045                         u8 dialog_token;
1046                         __le16 capability;
1047                         u8 variable[0];
1048                 } __packed setup_req;
1049                 struct {
1050                         __le16 status_code;
1051                         u8 dialog_token;
1052                         __le16 capability;
1053                         u8 variable[0];
1054                 } __packed setup_resp;
1055                 struct {
1056                         __le16 status_code;
1057                         u8 dialog_token;
1058                         u8 variable[0];
1059                 } __packed setup_cfm;
1060                 struct {
1061                         __le16 reason_code;
1062                         u8 variable[0];
1063                 } __packed teardown;
1064                 struct {
1065                         u8 dialog_token;
1066                         u8 variable[0];
1067                 } __packed discover_req;
1068         } u;
1069 } __packed;
1070
1071 /*
1072  * Peer-to-Peer IE attribute related definitions.
1073  */
1074 /**
1075  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1076  */
1077 enum ieee80211_p2p_attr_id {
1078         IEEE80211_P2P_ATTR_STATUS = 0,
1079         IEEE80211_P2P_ATTR_MINOR_REASON,
1080         IEEE80211_P2P_ATTR_CAPABILITY,
1081         IEEE80211_P2P_ATTR_DEVICE_ID,
1082         IEEE80211_P2P_ATTR_GO_INTENT,
1083         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1084         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1085         IEEE80211_P2P_ATTR_GROUP_BSSID,
1086         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1087         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1088         IEEE80211_P2P_ATTR_MANAGABILITY,
1089         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1090         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1091         IEEE80211_P2P_ATTR_DEVICE_INFO,
1092         IEEE80211_P2P_ATTR_GROUP_INFO,
1093         IEEE80211_P2P_ATTR_GROUP_ID,
1094         IEEE80211_P2P_ATTR_INTERFACE,
1095         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1096         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1097         /* 19 - 220: Reserved */
1098         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1099
1100         IEEE80211_P2P_ATTR_MAX
1101 };
1102
1103 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1104 /* Typical max value used here */
1105 #define IEEE80211_P2P_NOA_DESC_MAX      4
1106
1107 struct ieee80211_p2p_noa_desc {
1108         u8 count;
1109         __le32 duration;
1110         __le32 interval;
1111         __le32 start_time;
1112 } __packed;
1113
1114 struct ieee80211_p2p_noa_attr {
1115         u8 index;
1116         u8 oppps_ctwindow;
1117         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1118 } __packed;
1119
1120 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1121 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1122
1123 /**
1124  * struct ieee80211_bar - HT Block Ack Request
1125  *
1126  * This structure refers to "HT BlockAckReq" as
1127  * described in 802.11n draft section 7.2.1.7.1
1128  */
1129 struct ieee80211_bar {
1130         __le16 frame_control;
1131         __le16 duration;
1132         __u8 ra[ETH_ALEN];
1133         __u8 ta[ETH_ALEN];
1134         __le16 control;
1135         __le16 start_seq_num;
1136 } __packed;
1137
1138 /* 802.11 BAR control masks */
1139 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1140 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1141 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1142 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1143 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1144
1145 #define IEEE80211_HT_MCS_MASK_LEN               10
1146
1147 /**
1148  * struct ieee80211_mcs_info - MCS information
1149  * @rx_mask: RX mask
1150  * @rx_highest: highest supported RX rate. If set represents
1151  *      the highest supported RX data rate in units of 1 Mbps.
1152  *      If this field is 0 this value should not be used to
1153  *      consider the highest RX data rate supported.
1154  * @tx_params: TX parameters
1155  */
1156 struct ieee80211_mcs_info {
1157         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1158         __le16 rx_highest;
1159         u8 tx_params;
1160         u8 reserved[3];
1161 } __packed;
1162
1163 /* 802.11n HT capability MSC set */
1164 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1165 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1166 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1167 /* value 0 == 1 stream etc */
1168 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1169 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1170 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1171 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1172
1173 /*
1174  * 802.11n D5.0 20.3.5 / 20.6 says:
1175  * - indices 0 to 7 and 32 are single spatial stream
1176  * - 8 to 31 are multiple spatial streams using equal modulation
1177  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1178  * - remainder are multiple spatial streams using unequal modulation
1179  */
1180 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1181 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1182         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1183
1184 /**
1185  * struct ieee80211_ht_cap - HT capabilities
1186  *
1187  * This structure is the "HT capabilities element" as
1188  * described in 802.11n D5.0 7.3.2.57
1189  */
1190 struct ieee80211_ht_cap {
1191         __le16 cap_info;
1192         u8 ampdu_params_info;
1193
1194         /* 16 bytes MCS information */
1195         struct ieee80211_mcs_info mcs;
1196
1197         __le16 extended_ht_cap_info;
1198         __le32 tx_BF_cap_info;
1199         u8 antenna_selection_info;
1200 } __packed;
1201
1202 /* 802.11n HT capabilities masks (for cap_info) */
1203 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1204 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1205 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1206 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1207 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1208 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1209 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1210 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1211 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1212 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1213 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1214 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1215 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1216 #define IEEE80211_HT_CAP_RESERVED               0x2000
1217 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1218 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1219
1220 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1221 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1222 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1223 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1224 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1225 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1226 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1227 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1228
1229 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1230 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1231 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1232 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1233
1234 /*
1235  * Maximum length of AMPDU that the STA can receive.
1236  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1237  */
1238 enum ieee80211_max_ampdu_length_exp {
1239         IEEE80211_HT_MAX_AMPDU_8K = 0,
1240         IEEE80211_HT_MAX_AMPDU_16K = 1,
1241         IEEE80211_HT_MAX_AMPDU_32K = 2,
1242         IEEE80211_HT_MAX_AMPDU_64K = 3
1243 };
1244
1245 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1246
1247 /* Minimum MPDU start spacing */
1248 enum ieee80211_min_mpdu_spacing {
1249         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1250         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1251         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1252         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1253         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1254         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1255         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1256         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1257 };
1258
1259 /**
1260  * struct ieee80211_ht_operation - HT operation IE
1261  *
1262  * This structure is the "HT operation element" as
1263  * described in 802.11n-2009 7.3.2.57
1264  */
1265 struct ieee80211_ht_operation {
1266         u8 primary_chan;
1267         u8 ht_param;
1268         __le16 operation_mode;
1269         __le16 stbc_param;
1270         u8 basic_set[16];
1271 } __packed;
1272
1273 /* for ht_param */
1274 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1275 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1276 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1277 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1278 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1279 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1280
1281 /* for operation_mode */
1282 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1283 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1284 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1285 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1286 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1287 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1288 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1289
1290 /* for stbc_param */
1291 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1292 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1293 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1294 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1295 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1296 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1297
1298
1299 /* block-ack parameters */
1300 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1301 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1302 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1303 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1304 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1305
1306 /*
1307  * A-PMDU buffer sizes
1308  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1309  */
1310 #define IEEE80211_MIN_AMPDU_BUF 0x8
1311 #define IEEE80211_MAX_AMPDU_BUF 0x40
1312
1313
1314 /* Spatial Multiplexing Power Save Modes (for capability) */
1315 #define WLAN_HT_CAP_SM_PS_STATIC        0
1316 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1317 #define WLAN_HT_CAP_SM_PS_INVALID       2
1318 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1319
1320 /* for SM power control field lower two bits */
1321 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1322 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1323 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1324
1325 /**
1326  * struct ieee80211_vht_mcs_info - VHT MCS information
1327  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1328  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1329  *      STA can receive. Rate expressed in units of 1 Mbps.
1330  *      If this field is 0 this value should not be used to
1331  *      consider the highest RX data rate supported.
1332  *      The top 3 bits of this field are reserved.
1333  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1334  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1335  *      STA can transmit. Rate expressed in units of 1 Mbps.
1336  *      If this field is 0 this value should not be used to
1337  *      consider the highest TX data rate supported.
1338  *      The top 3 bits of this field are reserved.
1339  */
1340 struct ieee80211_vht_mcs_info {
1341         __le16 rx_mcs_map;
1342         __le16 rx_highest;
1343         __le16 tx_mcs_map;
1344         __le16 tx_highest;
1345 } __packed;
1346
1347 /**
1348  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1349  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1350  *      number of streams
1351  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1352  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1353  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1354  *
1355  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1356  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1357  * both split into 8 subfields by number of streams. These values indicate
1358  * which MCSes are supported for the number of streams the value appears
1359  * for.
1360  */
1361 enum ieee80211_vht_mcs_support {
1362         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1363         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1364         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1365         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1366 };
1367
1368 /**
1369  * struct ieee80211_vht_cap - VHT capabilities
1370  *
1371  * This structure is the "VHT capabilities element" as
1372  * described in 802.11ac D3.0 8.4.2.160
1373  * @vht_cap_info: VHT capability info
1374  * @supp_mcs: VHT MCS supported rates
1375  */
1376 struct ieee80211_vht_cap {
1377         __le32 vht_cap_info;
1378         struct ieee80211_vht_mcs_info supp_mcs;
1379 } __packed;
1380
1381 /**
1382  * enum ieee80211_vht_chanwidth - VHT channel width
1383  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1384  *      determine the channel width (20 or 40 MHz)
1385  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1386  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1387  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1388  */
1389 enum ieee80211_vht_chanwidth {
1390         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1391         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1392         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1393         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1394 };
1395
1396 /**
1397  * struct ieee80211_vht_operation - VHT operation IE
1398  *
1399  * This structure is the "VHT operation element" as
1400  * described in 802.11ac D3.0 8.4.2.161
1401  * @chan_width: Operating channel width
1402  * @center_freq_seg1_idx: center freq segment 1 index
1403  * @center_freq_seg2_idx: center freq segment 2 index
1404  * @basic_mcs_set: VHT Basic MCS rate set
1405  */
1406 struct ieee80211_vht_operation {
1407         u8 chan_width;
1408         u8 center_freq_seg1_idx;
1409         u8 center_freq_seg2_idx;
1410         __le16 basic_mcs_set;
1411 } __packed;
1412
1413
1414 /* 802.11ac VHT Capabilities */
1415 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1416 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1417 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1418 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1419 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1420 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1421 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1422 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1423 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1424 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1425 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1426 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1427 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1428 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1429 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1430 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1431 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1432 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1433 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1434                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1435 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1436 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1437                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1438 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1439 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1440 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1441 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1442 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1443 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1444                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1445 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1446 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1447 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1448 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1449
1450 /* Authentication algorithms */
1451 #define WLAN_AUTH_OPEN 0
1452 #define WLAN_AUTH_SHARED_KEY 1
1453 #define WLAN_AUTH_FT 2
1454 #define WLAN_AUTH_SAE 3
1455 #define WLAN_AUTH_LEAP 128
1456
1457 #define WLAN_AUTH_CHALLENGE_LEN 128
1458
1459 #define WLAN_CAPABILITY_ESS             (1<<0)
1460 #define WLAN_CAPABILITY_IBSS            (1<<1)
1461
1462 /*
1463  * A mesh STA sets the ESS and IBSS capability bits to zero.
1464  * however, this holds true for p2p probe responses (in the p2p_find
1465  * phase) as well.
1466  */
1467 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1468         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1469
1470 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1471 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1472 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1473 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1474 #define WLAN_CAPABILITY_PBCC            (1<<6)
1475 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1476
1477 /* 802.11h */
1478 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1479 #define WLAN_CAPABILITY_QOS             (1<<9)
1480 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1481 #define WLAN_CAPABILITY_APSD            (1<<11)
1482 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1483 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1484 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1485 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1486
1487 /* DMG (60gHz) 802.11ad */
1488 /* type - bits 0..1 */
1489 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1490 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1491 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1492 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1493
1494 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1495 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1496 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1497 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1498
1499 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1500 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1501
1502 /* measurement */
1503 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1504 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1505 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1506
1507 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1508 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1509 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1510
1511 /* 802.11g ERP information element */
1512 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1513 #define WLAN_ERP_USE_PROTECTION (1<<1)
1514 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1515
1516 /* WLAN_ERP_BARKER_PREAMBLE values */
1517 enum {
1518         WLAN_ERP_PREAMBLE_SHORT = 0,
1519         WLAN_ERP_PREAMBLE_LONG = 1,
1520 };
1521
1522 /* Band ID, 802.11ad #8.4.1.45 */
1523 enum {
1524         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1525         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1526         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1527         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1528         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1529         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1530 };
1531
1532 /* Status codes */
1533 enum ieee80211_statuscode {
1534         WLAN_STATUS_SUCCESS = 0,
1535         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1536         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1537         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1538         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1539         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1540         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1541         WLAN_STATUS_CHALLENGE_FAIL = 15,
1542         WLAN_STATUS_AUTH_TIMEOUT = 16,
1543         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1544         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1545         /* 802.11b */
1546         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1547         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1548         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1549         /* 802.11h */
1550         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1551         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1552         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1553         /* 802.11g */
1554         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1555         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1556         /* 802.11w */
1557         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1558         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1559         /* 802.11i */
1560         WLAN_STATUS_INVALID_IE = 40,
1561         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1562         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1563         WLAN_STATUS_INVALID_AKMP = 43,
1564         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1565         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1566         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1567         /* 802.11e */
1568         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1569         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1570         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1571         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1572         WLAN_STATUS_REQUEST_DECLINED = 37,
1573         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1574         WLAN_STATUS_CHANGE_TSPEC = 39,
1575         WLAN_STATUS_WAIT_TS_DELAY = 47,
1576         WLAN_STATUS_NO_DIRECT_LINK = 48,
1577         WLAN_STATUS_STA_NOT_PRESENT = 49,
1578         WLAN_STATUS_STA_NOT_QSTA = 50,
1579         /* 802.11s */
1580         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1581         WLAN_STATUS_FCG_NOT_SUPP = 78,
1582         WLAN_STATUS_STA_NO_TBTT = 78,
1583         /* 802.11ad */
1584         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1585         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1586         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1587         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1588         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1589         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1590         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1591         WLAN_STATUS_REJECT_DSE_BAND = 96,
1592         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1593         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1594 };
1595
1596
1597 /* Reason codes */
1598 enum ieee80211_reasoncode {
1599         WLAN_REASON_UNSPECIFIED = 1,
1600         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1601         WLAN_REASON_DEAUTH_LEAVING = 3,
1602         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1603         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1604         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1605         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1606         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1607         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1608         /* 802.11h */
1609         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1610         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1611         /* 802.11i */
1612         WLAN_REASON_INVALID_IE = 13,
1613         WLAN_REASON_MIC_FAILURE = 14,
1614         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1615         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1616         WLAN_REASON_IE_DIFFERENT = 17,
1617         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1618         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1619         WLAN_REASON_INVALID_AKMP = 20,
1620         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1621         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1622         WLAN_REASON_IEEE8021X_FAILED = 23,
1623         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1624         /* 802.11e */
1625         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1626         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1627         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1628         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1629         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1630         WLAN_REASON_QSTA_NOT_USE = 37,
1631         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1632         WLAN_REASON_QSTA_TIMEOUT = 39,
1633         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1634         /* 802.11s */
1635         WLAN_REASON_MESH_PEER_CANCELED = 52,
1636         WLAN_REASON_MESH_MAX_PEERS = 53,
1637         WLAN_REASON_MESH_CONFIG = 54,
1638         WLAN_REASON_MESH_CLOSE = 55,
1639         WLAN_REASON_MESH_MAX_RETRIES = 56,
1640         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1641         WLAN_REASON_MESH_INVALID_GTK = 58,
1642         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1643         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1644         WLAN_REASON_MESH_PATH_ERROR = 61,
1645         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1646         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1647         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1648         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1649         WLAN_REASON_MESH_CHAN = 66,
1650 };
1651
1652
1653 /* Information Element IDs */
1654 enum ieee80211_eid {
1655         WLAN_EID_SSID = 0,
1656         WLAN_EID_SUPP_RATES = 1,
1657         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1658         WLAN_EID_DS_PARAMS = 3,
1659         WLAN_EID_CF_PARAMS = 4,
1660         WLAN_EID_TIM = 5,
1661         WLAN_EID_IBSS_PARAMS = 6,
1662         WLAN_EID_COUNTRY = 7,
1663         WLAN_EID_HP_PARAMS = 8,
1664         WLAN_EID_HP_TABLE = 9,
1665         WLAN_EID_REQUEST = 10,
1666         WLAN_EID_QBSS_LOAD = 11,
1667         WLAN_EID_EDCA_PARAM_SET = 12,
1668         WLAN_EID_TSPEC = 13,
1669         WLAN_EID_TCLAS = 14,
1670         WLAN_EID_SCHEDULE = 15,
1671         WLAN_EID_CHALLENGE = 16,
1672         /* 17-31 reserved for challenge text extension */
1673         WLAN_EID_PWR_CONSTRAINT = 32,
1674         WLAN_EID_PWR_CAPABILITY = 33,
1675         WLAN_EID_TPC_REQUEST = 34,
1676         WLAN_EID_TPC_REPORT = 35,
1677         WLAN_EID_SUPPORTED_CHANNELS = 36,
1678         WLAN_EID_CHANNEL_SWITCH = 37,
1679         WLAN_EID_MEASURE_REQUEST = 38,
1680         WLAN_EID_MEASURE_REPORT = 39,
1681         WLAN_EID_QUIET = 40,
1682         WLAN_EID_IBSS_DFS = 41,
1683         WLAN_EID_ERP_INFO = 42,
1684         WLAN_EID_TS_DELAY = 43,
1685         WLAN_EID_TCLAS_PROCESSING = 44,
1686         WLAN_EID_HT_CAPABILITY = 45,
1687         WLAN_EID_QOS_CAPA = 46,
1688         /* 47 reserved for Broadcom */
1689         WLAN_EID_RSN = 48,
1690         WLAN_EID_802_15_COEX = 49,
1691         WLAN_EID_EXT_SUPP_RATES = 50,
1692         WLAN_EID_AP_CHAN_REPORT = 51,
1693         WLAN_EID_NEIGHBOR_REPORT = 52,
1694         WLAN_EID_RCPI = 53,
1695         WLAN_EID_MOBILITY_DOMAIN = 54,
1696         WLAN_EID_FAST_BSS_TRANSITION = 55,
1697         WLAN_EID_TIMEOUT_INTERVAL = 56,
1698         WLAN_EID_RIC_DATA = 57,
1699         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1700         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1701         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1702         WLAN_EID_HT_OPERATION = 61,
1703         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1704         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1705         WLAN_EID_ANTENNA_INFO = 64,
1706         WLAN_EID_RSNI = 65,
1707         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1708         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1709         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1710         WLAN_EID_TIME_ADVERTISEMENT = 69,
1711         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1712         WLAN_EID_MULTIPLE_BSSID = 71,
1713         WLAN_EID_BSS_COEX_2040 = 72,
1714         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1715         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1716         WLAN_EID_RIC_DESCRIPTOR = 75,
1717         WLAN_EID_MMIE = 76,
1718         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1719         WLAN_EID_EVENT_REQUEST = 78,
1720         WLAN_EID_EVENT_REPORT = 79,
1721         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1722         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1723         WLAN_EID_LOCATION_PARAMS = 82,
1724         WLAN_EID_NON_TX_BSSID_CAP =  83,
1725         WLAN_EID_SSID_LIST = 84,
1726         WLAN_EID_MULTI_BSSID_IDX = 85,
1727         WLAN_EID_FMS_DESCRIPTOR = 86,
1728         WLAN_EID_FMS_REQUEST = 87,
1729         WLAN_EID_FMS_RESPONSE = 88,
1730         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1731         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1732         WLAN_EID_TSF_REQUEST = 91,
1733         WLAN_EID_TSF_RESPOSNE = 92,
1734         WLAN_EID_WNM_SLEEP_MODE = 93,
1735         WLAN_EID_TIM_BCAST_REQ = 94,
1736         WLAN_EID_TIM_BCAST_RESP = 95,
1737         WLAN_EID_COLL_IF_REPORT = 96,
1738         WLAN_EID_CHANNEL_USAGE = 97,
1739         WLAN_EID_TIME_ZONE = 98,
1740         WLAN_EID_DMS_REQUEST = 99,
1741         WLAN_EID_DMS_RESPONSE = 100,
1742         WLAN_EID_LINK_ID = 101,
1743         WLAN_EID_WAKEUP_SCHEDUL = 102,
1744         /* 103 reserved */
1745         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1746         WLAN_EID_PTI_CONTROL = 105,
1747         WLAN_EID_PU_BUFFER_STATUS = 106,
1748         WLAN_EID_INTERWORKING = 107,
1749         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1750         WLAN_EID_EXPEDITED_BW_REQ = 109,
1751         WLAN_EID_QOS_MAP_SET = 110,
1752         WLAN_EID_ROAMING_CONSORTIUM = 111,
1753         WLAN_EID_EMERGENCY_ALERT = 112,
1754         WLAN_EID_MESH_CONFIG = 113,
1755         WLAN_EID_MESH_ID = 114,
1756         WLAN_EID_LINK_METRIC_REPORT = 115,
1757         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1758         WLAN_EID_PEER_MGMT = 117,
1759         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1760         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1761         WLAN_EID_BEACON_TIMING = 120,
1762         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1763         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1764         WLAN_EID_MCCAOP_ADVERT = 123,
1765         WLAN_EID_MCCAOP_TEARDOWN = 124,
1766         WLAN_EID_GANN = 125,
1767         WLAN_EID_RANN = 126,
1768         WLAN_EID_EXT_CAPABILITY = 127,
1769         /* 128, 129 reserved for Agere */
1770         WLAN_EID_PREQ = 130,
1771         WLAN_EID_PREP = 131,
1772         WLAN_EID_PERR = 132,
1773         /* 133-136 reserved for Cisco */
1774         WLAN_EID_PXU = 137,
1775         WLAN_EID_PXUC = 138,
1776         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1777         WLAN_EID_MIC = 140,
1778         WLAN_EID_DESTINATION_URI = 141,
1779         WLAN_EID_UAPSD_COEX = 142,
1780         WLAN_EID_WAKEUP_SCHEDULE = 143,
1781         WLAN_EID_EXT_SCHEDULE = 144,
1782         WLAN_EID_STA_AVAILABILITY = 145,
1783         WLAN_EID_DMG_TSPEC = 146,
1784         WLAN_EID_DMG_AT = 147,
1785         WLAN_EID_DMG_CAP = 148,
1786         /* 149-150 reserved for Cisco */
1787         WLAN_EID_DMG_OPERATION = 151,
1788         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1789         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1790         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1791         /* 155-156 reserved for Cisco */
1792         WLAN_EID_AWAKE_WINDOW = 157,
1793         WLAN_EID_MULTI_BAND = 158,
1794         WLAN_EID_ADDBA_EXT = 159,
1795         WLAN_EID_NEXT_PCP_LIST = 160,
1796         WLAN_EID_PCP_HANDOVER = 161,
1797         WLAN_EID_DMG_LINK_MARGIN = 162,
1798         WLAN_EID_SWITCHING_STREAM = 163,
1799         WLAN_EID_SESSION_TRANSITION = 164,
1800         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1801         WLAN_EID_CLUSTER_REPORT = 166,
1802         WLAN_EID_RELAY_CAP = 167,
1803         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1804         WLAN_EID_BEAM_LINK_MAINT = 169,
1805         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1806         WLAN_EID_U_PID = 171,
1807         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1808         /* 173 reserved for Symbol */
1809         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1810         WLAN_EID_QUIET_PERIOD_REQ = 175,
1811         /* 176 reserved for Symbol */
1812         WLAN_EID_QUIET_PERIOD_RESP = 177,
1813         /* 178-179 reserved for Symbol */
1814         /* 180 reserved for ISO/IEC 20011 */
1815         WLAN_EID_EPAC_POLICY = 182,
1816         WLAN_EID_CLISTER_TIME_OFF = 183,
1817         WLAN_EID_INTER_AC_PRIO = 184,
1818         WLAN_EID_SCS_DESCRIPTOR = 185,
1819         WLAN_EID_QLOAD_REPORT = 186,
1820         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1821         WLAN_EID_HL_STREAM_ID = 188,
1822         WLAN_EID_GCR_GROUP_ADDR = 189,
1823         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1824         WLAN_EID_VHT_CAPABILITY = 191,
1825         WLAN_EID_VHT_OPERATION = 192,
1826         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1827         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1828         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1829         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1830         WLAN_EID_AID = 197,
1831         WLAN_EID_QUIET_CHANNEL = 198,
1832         WLAN_EID_OPMODE_NOTIF = 199,
1833
1834         WLAN_EID_VENDOR_SPECIFIC = 221,
1835         WLAN_EID_QOS_PARAMETER = 222,
1836 };
1837
1838 /* Action category code */
1839 enum ieee80211_category {
1840         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1841         WLAN_CATEGORY_QOS = 1,
1842         WLAN_CATEGORY_DLS = 2,
1843         WLAN_CATEGORY_BACK = 3,
1844         WLAN_CATEGORY_PUBLIC = 4,
1845         WLAN_CATEGORY_HT = 7,
1846         WLAN_CATEGORY_SA_QUERY = 8,
1847         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1848         WLAN_CATEGORY_TDLS = 12,
1849         WLAN_CATEGORY_MESH_ACTION = 13,
1850         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1851         WLAN_CATEGORY_SELF_PROTECTED = 15,
1852         WLAN_CATEGORY_DMG = 16,
1853         WLAN_CATEGORY_WMM = 17,
1854         WLAN_CATEGORY_FST = 18,
1855         WLAN_CATEGORY_UNPROT_DMG = 20,
1856         WLAN_CATEGORY_VHT = 21,
1857         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1858         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1859 };
1860
1861 /* SPECTRUM_MGMT action code */
1862 enum ieee80211_spectrum_mgmt_actioncode {
1863         WLAN_ACTION_SPCT_MSR_REQ = 0,
1864         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1865         WLAN_ACTION_SPCT_TPC_REQ = 2,
1866         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1867         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1868 };
1869
1870 /* HT action codes */
1871 enum ieee80211_ht_actioncode {
1872         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1873         WLAN_HT_ACTION_SMPS = 1,
1874         WLAN_HT_ACTION_PSMP = 2,
1875         WLAN_HT_ACTION_PCO_PHASE = 3,
1876         WLAN_HT_ACTION_CSI = 4,
1877         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1878         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1879         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1880 };
1881
1882 /* VHT action codes */
1883 enum ieee80211_vht_actioncode {
1884         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1885         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1886         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1887 };
1888
1889 /* Self Protected Action codes */
1890 enum ieee80211_self_protected_actioncode {
1891         WLAN_SP_RESERVED = 0,
1892         WLAN_SP_MESH_PEERING_OPEN = 1,
1893         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1894         WLAN_SP_MESH_PEERING_CLOSE = 3,
1895         WLAN_SP_MGK_INFORM = 4,
1896         WLAN_SP_MGK_ACK = 5,
1897 };
1898
1899 /* Mesh action codes */
1900 enum ieee80211_mesh_actioncode {
1901         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1902         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1903         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1904         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1905         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1906         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1907         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1908         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1909         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1910         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1911         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1912 };
1913
1914 /* Security key length */
1915 enum ieee80211_key_len {
1916         WLAN_KEY_LEN_WEP40 = 5,
1917         WLAN_KEY_LEN_WEP104 = 13,
1918         WLAN_KEY_LEN_CCMP = 16,
1919         WLAN_KEY_LEN_TKIP = 32,
1920         WLAN_KEY_LEN_AES_CMAC = 16,
1921         WLAN_KEY_LEN_SMS4 = 32,
1922 };
1923
1924 #define IEEE80211_WEP_IV_LEN            4
1925 #define IEEE80211_WEP_ICV_LEN           4
1926 #define IEEE80211_CCMP_HDR_LEN          8
1927 #define IEEE80211_CCMP_MIC_LEN          8
1928 #define IEEE80211_CCMP_PN_LEN           6
1929 #define IEEE80211_TKIP_IV_LEN           8
1930 #define IEEE80211_TKIP_ICV_LEN          4
1931 #define IEEE80211_CMAC_PN_LEN           6
1932
1933 /* Public action codes */
1934 enum ieee80211_pub_actioncode {
1935         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
1936         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1937 };
1938
1939 /* TDLS action codes */
1940 enum ieee80211_tdls_actioncode {
1941         WLAN_TDLS_SETUP_REQUEST = 0,
1942         WLAN_TDLS_SETUP_RESPONSE = 1,
1943         WLAN_TDLS_SETUP_CONFIRM = 2,
1944         WLAN_TDLS_TEARDOWN = 3,
1945         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1946         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1947         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1948         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1949         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1950         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1951         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1952 };
1953
1954 /* Interworking capabilities are set in 7th bit of 4th byte of the
1955  * @WLAN_EID_EXT_CAPABILITY information element
1956  */
1957 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
1958
1959 /*
1960  * TDLS capabililites to be enabled in the 5th byte of the
1961  * @WLAN_EID_EXT_CAPABILITY information element
1962  */
1963 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1964 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1965
1966 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1967 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(7)
1968
1969 /* TDLS specific payload type in the LLC/SNAP header */
1970 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1971
1972 /**
1973  * enum - mesh synchronization method identifier
1974  *
1975  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1976  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1977  *      that will be specified in a vendor specific information element
1978  */
1979 enum {
1980         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1981         IEEE80211_SYNC_METHOD_VENDOR = 255,
1982 };
1983
1984 /**
1985  * enum - mesh path selection protocol identifier
1986  *
1987  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1988  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1989  *      be specified in a vendor specific information element
1990  */
1991 enum {
1992         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1993         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1994 };
1995
1996 /**
1997  * enum - mesh path selection metric identifier
1998  *
1999  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2000  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2001  *      specified in a vendor specific information element
2002  */
2003 enum {
2004         IEEE80211_PATH_METRIC_AIRTIME = 1,
2005         IEEE80211_PATH_METRIC_VENDOR = 255,
2006 };
2007
2008 /**
2009  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2010  *
2011  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2012  *
2013  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2014  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2015  *      this value
2016  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2017  *      the proactive PREQ with proactive PREP subfield set to 0
2018  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2019  *      supports the proactive PREQ with proactive PREP subfield set to 1
2020  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2021  *      the proactive RANN
2022  */
2023 enum ieee80211_root_mode_identifier {
2024         IEEE80211_ROOTMODE_NO_ROOT = 0,
2025         IEEE80211_ROOTMODE_ROOT = 1,
2026         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2027         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2028         IEEE80211_PROACTIVE_RANN = 4,
2029 };
2030
2031 /*
2032  * IEEE 802.11-2007 7.3.2.9 Country information element
2033  *
2034  * Minimum length is 8 octets, ie len must be evenly
2035  * divisible by 2
2036  */
2037
2038 /* Although the spec says 8 I'm seeing 6 in practice */
2039 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2040
2041 /* The Country String field of the element shall be 3 octets in length */
2042 #define IEEE80211_COUNTRY_STRING_LEN    3
2043
2044 /*
2045  * For regulatory extension stuff see IEEE 802.11-2007
2046  * Annex I (page 1141) and Annex J (page 1147). Also
2047  * review 7.3.2.9.
2048  *
2049  * When dot11RegulatoryClassesRequired is true and the
2050  * first_channel/reg_extension_id is >= 201 then the IE
2051  * compromises of the 'ext' struct represented below:
2052  *
2053  *  - Regulatory extension ID - when generating IE this just needs
2054  *    to be monotonically increasing for each triplet passed in
2055  *    the IE
2056  *  - Regulatory class - index into set of rules
2057  *  - Coverage class - index into air propagation time (Table 7-27),
2058  *    in microseconds, you can compute the air propagation time from
2059  *    the index by multiplying by 3, so index 10 yields a propagation
2060  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2061  *    yet. A value of 0 inicates air propagation of <= 1 us.
2062  *
2063  *  See also Table I.2 for Emission limit sets and table
2064  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2065  *  a reg_class to an emission limit set and behavior limit set.
2066  */
2067 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2068
2069 /*
2070  *  Channels numbers in the IE must be monotonically increasing
2071  *  if dot11RegulatoryClassesRequired is not true.
2072  *
2073  *  If dot11RegulatoryClassesRequired is true consecutive
2074  *  subband triplets following a regulatory triplet shall
2075  *  have monotonically increasing first_channel number fields.
2076  *
2077  *  Channel numbers shall not overlap.
2078  *
2079  *  Note that max_power is signed.
2080  */
2081 struct ieee80211_country_ie_triplet {
2082         union {
2083                 struct {
2084                         u8 first_channel;
2085                         u8 num_channels;
2086                         s8 max_power;
2087                 } __packed chans;
2088                 struct {
2089                         u8 reg_extension_id;
2090                         u8 reg_class;
2091                         u8 coverage_class;
2092                 } __packed ext;
2093         };
2094 } __packed;
2095
2096 enum ieee80211_timeout_interval_type {
2097         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2098         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2099         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2100 };
2101
2102 /**
2103  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2104  * @type: type, see &enum ieee80211_timeout_interval_type
2105  * @value: timeout interval value
2106  */
2107 struct ieee80211_timeout_interval_ie {
2108         u8 type;
2109         __le32 value;
2110 } __packed;
2111
2112 /* BACK action code */
2113 enum ieee80211_back_actioncode {
2114         WLAN_ACTION_ADDBA_REQ = 0,
2115         WLAN_ACTION_ADDBA_RESP = 1,
2116         WLAN_ACTION_DELBA = 2,
2117 };
2118
2119 /* BACK (block-ack) parties */
2120 enum ieee80211_back_parties {
2121         WLAN_BACK_RECIPIENT = 0,
2122         WLAN_BACK_INITIATOR = 1,
2123 };
2124
2125 /* SA Query action */
2126 enum ieee80211_sa_query_action {
2127         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2128         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2129 };
2130
2131
2132 /* cipher suite selectors */
2133 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2134 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2135 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2136 /* reserved:                            0x000FAC03 */
2137 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2138 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2139 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2140 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2141
2142 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2143
2144 /* AKM suite selectors */
2145 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2146 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2147 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
2148 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
2149 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
2150 #define WLAN_AKM_SUITE_SAE              0x000FAC08
2151 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2152
2153 #define WLAN_MAX_KEY_LEN                32
2154
2155 #define WLAN_PMKID_LEN                  16
2156
2157 #define WLAN_OUI_WFA                    0x506f9a
2158 #define WLAN_OUI_TYPE_WFA_P2P           9
2159 #define WLAN_OUI_MICROSOFT              0x0050f2
2160 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2161 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2162 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2163
2164 /*
2165  * WMM/802.11e Tspec Element
2166  */
2167 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2168 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2169
2170 enum ieee80211_tspec_status_code {
2171         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2172         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2173 };
2174
2175 struct ieee80211_tspec_ie {
2176         u8 element_id;
2177         u8 len;
2178         u8 oui[3];
2179         u8 oui_type;
2180         u8 oui_subtype;
2181         u8 version;
2182         __le16 tsinfo;
2183         u8 tsinfo_resvd;
2184         __le16 nominal_msdu;
2185         __le16 max_msdu;
2186         __le32 min_service_int;
2187         __le32 max_service_int;
2188         __le32 inactivity_int;
2189         __le32 suspension_int;
2190         __le32 service_start_time;
2191         __le32 min_data_rate;
2192         __le32 mean_data_rate;
2193         __le32 peak_data_rate;
2194         __le32 max_burst_size;
2195         __le32 delay_bound;
2196         __le32 min_phy_rate;
2197         __le16 sba;
2198         __le16 medium_time;
2199 } __packed;
2200
2201 /**
2202  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2203  * @hdr: the frame
2204  *
2205  * The qos ctrl bytes come after the frame_control, duration, seq_num
2206  * and 3 or 4 addresses of length ETH_ALEN.
2207  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2208  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2209  */
2210 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2211 {
2212         if (ieee80211_has_a4(hdr->frame_control))
2213                 return (u8 *)hdr + 30;
2214         else
2215                 return (u8 *)hdr + 24;
2216 }
2217
2218 /**
2219  * ieee80211_get_SA - get pointer to SA
2220  * @hdr: the frame
2221  *
2222  * Given an 802.11 frame, this function returns the offset
2223  * to the source address (SA). It does not verify that the
2224  * header is long enough to contain the address, and the
2225  * header must be long enough to contain the frame control
2226  * field.
2227  */
2228 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2229 {
2230         if (ieee80211_has_a4(hdr->frame_control))
2231                 return hdr->addr4;
2232         if (ieee80211_has_fromds(hdr->frame_control))
2233                 return hdr->addr3;
2234         return hdr->addr2;
2235 }
2236
2237 /**
2238  * ieee80211_get_DA - get pointer to DA
2239  * @hdr: the frame
2240  *
2241  * Given an 802.11 frame, this function returns the offset
2242  * to the destination address (DA). It does not verify that
2243  * the header is long enough to contain the address, and the
2244  * header must be long enough to contain the frame control
2245  * field.
2246  */
2247 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2248 {
2249         if (ieee80211_has_tods(hdr->frame_control))
2250                 return hdr->addr3;
2251         else
2252                 return hdr->addr1;
2253 }
2254
2255 /**
2256  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2257  * @hdr: the frame (buffer must include at least the first octet of payload)
2258  */
2259 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2260 {
2261         if (ieee80211_is_disassoc(hdr->frame_control) ||
2262             ieee80211_is_deauth(hdr->frame_control))
2263                 return true;
2264
2265         if (ieee80211_is_action(hdr->frame_control)) {
2266                 u8 *category;
2267
2268                 /*
2269                  * Action frames, excluding Public Action frames, are Robust
2270                  * Management Frames. However, if we are looking at a Protected
2271                  * frame, skip the check since the data may be encrypted and
2272                  * the frame has already been found to be a Robust Management
2273                  * Frame (by the other end).
2274                  */
2275                 if (ieee80211_has_protected(hdr->frame_control))
2276                         return true;
2277                 category = ((u8 *) hdr) + 24;
2278                 return *category != WLAN_CATEGORY_PUBLIC &&
2279                         *category != WLAN_CATEGORY_HT &&
2280                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2281                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2282         }
2283
2284         return false;
2285 }
2286
2287 /**
2288  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
2289  * @skb: the skb containing the frame, length will be checked
2290  */
2291 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
2292 {
2293         if (skb->len < 25)
2294                 return false;
2295         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
2296 }
2297
2298 /**
2299  * ieee80211_is_public_action - check if frame is a public action frame
2300  * @hdr: the frame
2301  * @len: length of the frame
2302  */
2303 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2304                                               size_t len)
2305 {
2306         struct ieee80211_mgmt *mgmt = (void *)hdr;
2307
2308         if (len < IEEE80211_MIN_ACTION_SIZE)
2309                 return false;
2310         if (!ieee80211_is_action(hdr->frame_control))
2311                 return false;
2312         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2313 }
2314
2315 /**
2316  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2317  * @tu: the TUs
2318  */
2319 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2320 {
2321         return 1024 * tu;
2322 }
2323
2324 /**
2325  * ieee80211_check_tim - check if AID bit is set in TIM
2326  * @tim: the TIM IE
2327  * @tim_len: length of the TIM IE
2328  * @aid: the AID to look for
2329  */
2330 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2331                                        u8 tim_len, u16 aid)
2332 {
2333         u8 mask;
2334         u8 index, indexn1, indexn2;
2335
2336         if (unlikely(!tim || tim_len < sizeof(*tim)))
2337                 return false;
2338
2339         aid &= 0x3fff;
2340         index = aid / 8;
2341         mask  = 1 << (aid & 7);
2342
2343         indexn1 = tim->bitmap_ctrl & 0xfe;
2344         indexn2 = tim_len + indexn1 - 4;
2345
2346         if (index < indexn1 || index > indexn2)
2347                 return false;
2348
2349         index -= indexn1;
2350
2351         return !!(tim->virtual_map[index] & mask);
2352 }
2353
2354 /* convert time units */
2355 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
2356 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
2357
2358 #endif /* LINUX_IEEE80211_H */