include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef __LINUX_IEEE80211_H
  16 #define __LINUX_IEEE80211_H
  17
  18 /*
  19  * DS bit usage
  20  *
  21  * TA = transmitter address
  22  * RA = receiver address
  23  * DA = destination address
  24  * SA = source address
  25  *
  26  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  27  * -----------------------------------------------------------------
  28  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  29  *  0       1       DA      BSSID   SA      -       AP -> STA
  30  *  1       0       BSSID   SA      DA      -       AP <- STA
  31  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  32  */
  33
  34 #define FCS_LEN 4
  35
  36 #define IEEE80211_FCTL_VERS             0x0003
  37 #define IEEE80211_FCTL_FTYPE            0x000c
  38 #define IEEE80211_FCTL_STYPE            0x00f0
  39 #define IEEE80211_FCTL_TODS             0x0100
  40 #define IEEE80211_FCTL_FROMDS           0x0200
  41 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  42 #define IEEE80211_FCTL_RETRY            0x0800
  43 #define IEEE80211_FCTL_PM               0x1000
  44 #define IEEE80211_FCTL_MOREDATA         0x2000
  45 #define IEEE80211_FCTL_PROTECTED        0x4000
  46 #define IEEE80211_FCTL_ORDER            0x8000
  47 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  48
  49 #define IEEE80211_SCTL_FRAG             0x000F
  50 #define IEEE80211_SCTL_SEQ              0xFFF0
  51
  52 #define IEEE80211_FTYPE_MGMT            0x0000
  53 #define IEEE80211_FTYPE_CTL             0x0004
  54 #define IEEE80211_FTYPE_DATA            0x0008
  55 #define IEEE80211_FTYPE_EXT             0x000c
  56
  57 /* management */
  58 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  59 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  60 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  61 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  62 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  63 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  64 #define IEEE80211_STYPE_BEACON          0x0080
  65 #define IEEE80211_STYPE_ATIM            0x0090
  66 #define IEEE80211_STYPE_DISASSOC        0x00A0
  67 #define IEEE80211_STYPE_AUTH            0x00B0
  68 #define IEEE80211_STYPE_DEAUTH          0x00C0
  69 #define IEEE80211_STYPE_ACTION          0x00D0
  70
  71 /* control */
  72 #define IEEE80211_STYPE_CTL_EXT         0x0060
  73 #define IEEE80211_STYPE_BACK_REQ        0x0080
  74 #define IEEE80211_STYPE_BACK            0x0090
  75 #define IEEE80211_STYPE_PSPOLL          0x00A0
  76 #define IEEE80211_STYPE_RTS             0x00B0
  77 #define IEEE80211_STYPE_CTS             0x00C0
  78 #define IEEE80211_STYPE_ACK             0x00D0
  79 #define IEEE80211_STYPE_CFEND           0x00E0
  80 #define IEEE80211_STYPE_CFENDACK        0x00F0
  81
  82 /* data */
  83 #define IEEE80211_STYPE_DATA                    0x0000
  84 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  85 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  86 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  87 #define IEEE80211_STYPE_NULLFUNC                0x0040
  88 #define IEEE80211_STYPE_CFACK                   0x0050
  89 #define IEEE80211_STYPE_CFPOLL                  0x0060
  90 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  91 #define IEEE80211_STYPE_QOS_DATA                0x0080
  92 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  93 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  94 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  95 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  96 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
  97 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
  98 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
  99
 100 /* extension, added by 802.11ad */
 101 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 102
 103 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 104 #define IEEE80211_CTL_EXT_POLL          0x2000
 105 #define IEEE80211_CTL_EXT_SPR           0x3000
 106 #define IEEE80211_CTL_EXT_GRANT 0x4000
 107 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 108 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 109 #define IEEE80211_CTL_EXT_SSW           0x8000
 110 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 111 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 112
 113
 114 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 115 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 116 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 117
 118 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 119 {
 120         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 121 }
 122
 123 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 124 {
 125         return (sn1 + sn2) & IEEE80211_SN_MASK;
 126 }
 127
 128 static inline u16 ieee80211_sn_inc(u16 sn)
 129 {
 130         return ieee80211_sn_add(sn, 1);
 131 }
 132
 133 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 134 {
 135         return (sn1 - sn2) & IEEE80211_SN_MASK;
 136 }
 137
 138 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 139 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 140
 141 /* miscellaneous IEEE 802.11 constants */
 142 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 143 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 144 #define IEEE80211_MAX_AID               2007
 145 #define IEEE80211_MAX_TIM_LEN           251
 146 #define IEEE80211_MAX_MESH_PEERINGS     63
 147 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 148    6.2.1.1.2.
 149
 150    802.11e clarifies the figure in section 7.1.2. The frame body is
 151    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 152 #define IEEE80211_MAX_DATA_LEN          2304
 153 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 154  * to 7920 bytes, see 8.2.3 General frame format
 155  */
 156 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 157 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 158 #define IEEE80211_MAX_FRAME_LEN         2352
 159
 160 #define IEEE80211_MAX_SSID_LEN          32
 161
 162 #define IEEE80211_MAX_MESH_ID_LEN       32
 163
 164 #define IEEE80211_NUM_TIDS              16
 165
 166 #define IEEE80211_QOS_CTL_LEN           2
 167 /* 1d tag mask */
 168 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 169 /* TID mask */
 170 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 171 /* EOSP */
 172 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 173 /* ACK policy */
 174 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 175 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 176 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 177 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 178 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 179 /* A-MSDU 802.11n */
 180 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 181 /* Mesh Control 802.11s */
 182 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 183
 184 /* U-APSD queue for WMM IEs sent by AP */
 185 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 186 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 187
 188 /* U-APSD queues for WMM IEs sent by STA */
 189 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 190 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 191 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 192 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 193 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 194
 195 /* U-APSD max SP length for WMM IEs sent by STA */
 196 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 197 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 198 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 199 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 200 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 201 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 202
 203 #define IEEE80211_HT_CTL_LEN            4
 204
 205 struct ieee80211_hdr {
 206         __le16 frame_control;
 207         __le16 duration_id;
 208         u8 addr1[6];
 209         u8 addr2[6];
 210         u8 addr3[6];
 211         __le16 seq_ctrl;
 212         u8 addr4[6];
 213 } __packed __aligned(2);
 214
 215 struct ieee80211_hdr_3addr {
 216         __le16 frame_control;
 217         __le16 duration_id;
 218         u8 addr1[6];
 219         u8 addr2[6];
 220         u8 addr3[6];
 221         __le16 seq_ctrl;
 222 } __packed __aligned(2);
 223
 224 struct ieee80211_qos_hdr {
 225         __le16 frame_control;
 226         __le16 duration_id;
 227         u8 addr1[6];
 228         u8 addr2[6];
 229         u8 addr3[6];
 230         __le16 seq_ctrl;
 231         __le16 qos_ctrl;
 232 } __packed __aligned(2);
 233
 234 /**
 235  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 236  * @fc: frame control bytes in little-endian byteorder
 237  */
 238 static inline int ieee80211_has_tods(__le16 fc)
 239 {
 240         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 241 }
 242
 243 /**
 244  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 245  * @fc: frame control bytes in little-endian byteorder
 246  */
 247 static inline int ieee80211_has_fromds(__le16 fc)
 248 {
 249         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 250 }
 251
 252 /**
 253  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 254  * @fc: frame control bytes in little-endian byteorder
 255  */
 256 static inline int ieee80211_has_a4(__le16 fc)
 257 {
 258         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 259         return (fc & tmp) == tmp;
 260 }
 261
 262 /**
 263  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 264  * @fc: frame control bytes in little-endian byteorder
 265  */
 266 static inline int ieee80211_has_morefrags(__le16 fc)
 267 {
 268         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 269 }
 270
 271 /**
 272  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 273  * @fc: frame control bytes in little-endian byteorder
 274  */
 275 static inline int ieee80211_has_retry(__le16 fc)
 276 {
 277         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 278 }
 279
 280 /**
 281  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 282  * @fc: frame control bytes in little-endian byteorder
 283  */
 284 static inline int ieee80211_has_pm(__le16 fc)
 285 {
 286         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 287 }
 288
 289 /**
 290  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 291  * @fc: frame control bytes in little-endian byteorder
 292  */
 293 static inline int ieee80211_has_moredata(__le16 fc)
 294 {
 295         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 296 }
 297
 298 /**
 299  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 300  * @fc: frame control bytes in little-endian byteorder
 301  */
 302 static inline int ieee80211_has_protected(__le16 fc)
 303 {
 304         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 305 }
 306
 307 /**
 308  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 309  * @fc: frame control bytes in little-endian byteorder
 310  */
 311 static inline int ieee80211_has_order(__le16 fc)
 312 {
 313         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 314 }
 315
 316 /**
 317  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 318  * @fc: frame control bytes in little-endian byteorder
 319  */
 320 static inline int ieee80211_is_mgmt(__le16 fc)
 321 {
 322         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 323                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 324 }
 325
 326 /**
 327  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 328  * @fc: frame control bytes in little-endian byteorder
 329  */
 330 static inline int ieee80211_is_ctl(__le16 fc)
 331 {
 332         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 333                cpu_to_le16(IEEE80211_FTYPE_CTL);
 334 }
 335
 336 /**
 337  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 338  * @fc: frame control bytes in little-endian byteorder
 339  */
 340 static inline int ieee80211_is_data(__le16 fc)
 341 {
 342         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 343                cpu_to_le16(IEEE80211_FTYPE_DATA);
 344 }
 345
 346 /**
 347  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 348  * @fc: frame control bytes in little-endian byteorder
 349  */
 350 static inline int ieee80211_is_data_qos(__le16 fc)
 351 {
 352         /*
 353          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 354          * to check the one bit
 355          */
 356         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 357                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 358 }
 359
 360 /**
 361  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 362  * @fc: frame control bytes in little-endian byteorder
 363  */
 364 static inline int ieee80211_is_data_present(__le16 fc)
 365 {
 366         /*
 367          * mask with 0x40 and test that that bit is clear to only return true
 368          * for the data-containing substypes.
 369          */
 370         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 371                cpu_to_le16(IEEE80211_FTYPE_DATA);
 372 }
 373
 374 /**
 375  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 376  * @fc: frame control bytes in little-endian byteorder
 377  */
 378 static inline int ieee80211_is_assoc_req(__le16 fc)
 379 {
 380         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 381                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 382 }
 383
 384 /**
 385  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 386  * @fc: frame control bytes in little-endian byteorder
 387  */
 388 static inline int ieee80211_is_assoc_resp(__le16 fc)
 389 {
 390         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 391                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 392 }
 393
 394 /**
 395  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 396  * @fc: frame control bytes in little-endian byteorder
 397  */
 398 static inline int ieee80211_is_reassoc_req(__le16 fc)
 399 {
 400         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 401                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 402 }
 403
 404 /**
 405  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 406  * @fc: frame control bytes in little-endian byteorder
 407  */
 408 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 409 {
 410         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 411                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 412 }
 413
 414 /**
 415  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 416  * @fc: frame control bytes in little-endian byteorder
 417  */
 418 static inline int ieee80211_is_probe_req(__le16 fc)
 419 {
 420         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 421                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 422 }
 423
 424 /**
 425  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 426  * @fc: frame control bytes in little-endian byteorder
 427  */
 428 static inline int ieee80211_is_probe_resp(__le16 fc)
 429 {
 430         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 431                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 432 }
 433
 434 /**
 435  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 436  * @fc: frame control bytes in little-endian byteorder
 437  */
 438 static inline int ieee80211_is_beacon(__le16 fc)
 439 {
 440         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 441                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 442 }
 443
 444 /**
 445  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 446  * @fc: frame control bytes in little-endian byteorder
 447  */
 448 static inline int ieee80211_is_atim(__le16 fc)
 449 {
 450         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 451                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 452 }
 453
 454 /**
 455  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 456  * @fc: frame control bytes in little-endian byteorder
 457  */
 458 static inline int ieee80211_is_disassoc(__le16 fc)
 459 {
 460         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 461                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 462 }
 463
 464 /**
 465  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 466  * @fc: frame control bytes in little-endian byteorder
 467  */
 468 static inline int ieee80211_is_auth(__le16 fc)
 469 {
 470         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 471                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 472 }
 473
 474 /**
 475  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 476  * @fc: frame control bytes in little-endian byteorder
 477  */
 478 static inline int ieee80211_is_deauth(__le16 fc)
 479 {
 480         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 481                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 482 }
 483
 484 /**
 485  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 486  * @fc: frame control bytes in little-endian byteorder
 487  */
 488 static inline int ieee80211_is_action(__le16 fc)
 489 {
 490         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 491                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 492 }
 493
 494 /**
 495  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 496  * @fc: frame control bytes in little-endian byteorder
 497  */
 498 static inline int ieee80211_is_back_req(__le16 fc)
 499 {
 500         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 501                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 502 }
 503
 504 /**
 505  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 506  * @fc: frame control bytes in little-endian byteorder
 507  */
 508 static inline int ieee80211_is_back(__le16 fc)
 509 {
 510         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 511                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 512 }
 513
 514 /**
 515  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 516  * @fc: frame control bytes in little-endian byteorder
 517  */
 518 static inline int ieee80211_is_pspoll(__le16 fc)
 519 {
 520         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 521                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 522 }
 523
 524 /**
 525  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 526  * @fc: frame control bytes in little-endian byteorder
 527  */
 528 static inline int ieee80211_is_rts(__le16 fc)
 529 {
 530         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 531                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 532 }
 533
 534 /**
 535  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 536  * @fc: frame control bytes in little-endian byteorder
 537  */
 538 static inline int ieee80211_is_cts(__le16 fc)
 539 {
 540         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 541                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 542 }
 543
 544 /**
 545  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 546  * @fc: frame control bytes in little-endian byteorder
 547  */
 548 static inline int ieee80211_is_ack(__le16 fc)
 549 {
 550         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 551                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 552 }
 553
 554 /**
 555  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 556  * @fc: frame control bytes in little-endian byteorder
 557  */
 558 static inline int ieee80211_is_cfend(__le16 fc)
 559 {
 560         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 561                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 562 }
 563
 564 /**
 565  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 566  * @fc: frame control bytes in little-endian byteorder
 567  */
 568 static inline int ieee80211_is_cfendack(__le16 fc)
 569 {
 570         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 571                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 572 }
 573
 574 /**
 575  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 576  * @fc: frame control bytes in little-endian byteorder
 577  */
 578 static inline int ieee80211_is_nullfunc(__le16 fc)
 579 {
 580         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 581                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 582 }
 583
 584 /**
 585  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 586  * @fc: frame control bytes in little-endian byteorder
 587  */
 588 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 589 {
 590         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 591                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 592 }
 593
 594 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 595 {
 596         unsigned int hdrlen = 24;
 597
 598         if (ieee80211_has_a4(fc))
 599                 hdrlen = 30;
 600
 601         if (ieee80211_is_data_qos(fc)) {
 602                 hdrlen += IEEE80211_QOS_CTL_LEN;
 603                 if (ieee80211_has_order(fc))
 604                         hdrlen += IEEE80211_HT_CTL_LEN;
 605         }
 606
 607         return hdrlen;
 608 }
 609
 610 /**
 611  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 612  * @fc: frame control field in little-endian byteorder
 613  */
 614 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 615 {
 616         /* IEEE 802.11-2012, definition of "bufferable management frame";
 617          * note that this ignores the IBSS special case. */
 618         return ieee80211_is_mgmt(fc) &&
 619                (ieee80211_is_action(fc) ||
 620                 ieee80211_is_disassoc(fc) ||
 621                 ieee80211_is_deauth(fc));
 622 }
 623
 624 /**
 625  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 626  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 627  */
 628 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 629 {
 630         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 631 }
 632
 633 struct ieee80211s_hdr {
 634         u8 flags;
 635         u8 ttl;
 636         __le32 seqnum;
 637         u8 eaddr1[6];
 638         u8 eaddr2[6];
 639 } __packed __aligned(2);
 640
 641 /* Mesh flags */
 642 #define MESH_FLAGS_AE_A4        0x1
 643 #define MESH_FLAGS_AE_A5_A6     0x2
 644 #define MESH_FLAGS_AE           0x3
 645 #define MESH_FLAGS_PS_DEEP      0x4
 646
 647 /**
 648  * enum ieee80211_preq_flags - mesh PREQ element flags
 649  *
 650  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 651  */
 652 enum ieee80211_preq_flags {
 653         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 654 };
 655
 656 /**
 657  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 658  *
 659  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 660  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 661  */
 662 enum ieee80211_preq_target_flags {
 663         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 664         IEEE80211_PREQ_USN_FLAG = 1<<2,
 665 };
 666
 667 /**
 668  * struct ieee80211_quiet_ie
 669  *
 670  * This structure refers to "Quiet information element"
 671  */
 672 struct ieee80211_quiet_ie {
 673         u8 count;
 674         u8 period;
 675         __le16 duration;
 676         __le16 offset;
 677 } __packed;
 678
 679 /**
 680  * struct ieee80211_msrment_ie
 681  *
 682  * This structure refers to "Measurement Request/Report information element"
 683  */
 684 struct ieee80211_msrment_ie {
 685         u8 token;
 686         u8 mode;
 687         u8 type;
 688         u8 request[0];
 689 } __packed;
 690
 691 /**
 692  * struct ieee80211_channel_sw_ie
 693  *
 694  * This structure refers to "Channel Switch Announcement information element"
 695  */
 696 struct ieee80211_channel_sw_ie {
 697         u8 mode;
 698         u8 new_ch_num;
 699         u8 count;
 700 } __packed;
 701
 702 /**
 703  * struct ieee80211_ext_chansw_ie
 704  *
 705  * This structure represents the "Extended Channel Switch Announcement element"
 706  */
 707 struct ieee80211_ext_chansw_ie {
 708         u8 mode;
 709         u8 new_operating_class;
 710         u8 new_ch_num;
 711         u8 count;
 712 } __packed;
 713
 714 /**
 715  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 716  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 717  *      values here
 718  * This structure represents the "Secondary Channel Offset element"
 719  */
 720 struct ieee80211_sec_chan_offs_ie {
 721         u8 sec_chan_offs;
 722 } __packed;
 723
 724 /**
 725  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 726  *
 727  * This structure represents the "Mesh Channel Switch Paramters element"
 728  */
 729 struct ieee80211_mesh_chansw_params_ie {
 730         u8 mesh_ttl;
 731         u8 mesh_flags;
 732         __le16 mesh_reason;
 733         __le16 mesh_pre_value;
 734 } __packed;
 735
 736 /**
 737  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 738  */
 739 struct ieee80211_wide_bw_chansw_ie {
 740         u8 new_channel_width;
 741         u8 new_center_freq_seg0, new_center_freq_seg1;
 742 } __packed;
 743
 744 /**
 745  * struct ieee80211_tim
 746  *
 747  * This structure refers to "Traffic Indication Map information element"
 748  */
 749 struct ieee80211_tim_ie {
 750         u8 dtim_count;
 751         u8 dtim_period;
 752         u8 bitmap_ctrl;
 753         /* variable size: 1 - 251 bytes */
 754         u8 virtual_map[1];
 755 } __packed;
 756
 757 /**
 758  * struct ieee80211_meshconf_ie
 759  *
 760  * This structure refers to "Mesh Configuration information element"
 761  */
 762 struct ieee80211_meshconf_ie {
 763         u8 meshconf_psel;
 764         u8 meshconf_pmetric;
 765         u8 meshconf_congest;
 766         u8 meshconf_synch;
 767         u8 meshconf_auth;
 768         u8 meshconf_form;
 769         u8 meshconf_cap;
 770 } __packed;
 771
 772 /**
 773  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 774  *
 775  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 776  *      additional mesh peerings with other mesh STAs
 777  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 778  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 779  *      is ongoing
 780  */
 781 enum mesh_config_capab_flags {
 782         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 783         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 784         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 785 };
 786
 787 /**
 788  * mesh channel switch parameters element's flag indicator
 789  *
 790  */
 791 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 792 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 793 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 794
 795 /**
 796  * struct ieee80211_rann_ie
 797  *
 798  * This structure refers to "Root Announcement information element"
 799  */
 800 struct ieee80211_rann_ie {
 801         u8 rann_flags;
 802         u8 rann_hopcount;
 803         u8 rann_ttl;
 804         u8 rann_addr[6];
 805         __le32 rann_seq;
 806         __le32 rann_interval;
 807         __le32 rann_metric;
 808 } __packed;
 809
 810 enum ieee80211_rann_flags {
 811         RANN_FLAG_IS_GATE = 1 << 0,
 812 };
 813
 814 enum ieee80211_ht_chanwidth_values {
 815         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 816         IEEE80211_HT_CHANWIDTH_ANY = 1,
 817 };
 818
 819 /**
 820  * enum ieee80211_opmode_bits - VHT operating mode field bits
 821  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 822  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 823  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 824  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 825  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 826  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 827  *      (the NSS value is the value of this field + 1)
 828  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 829  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 830  *      using a beamforming steering matrix
 831  */
 832 enum ieee80211_vht_opmode_bits {
 833         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 834         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 835         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 836         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 837         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 838         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 839         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 840         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 841 };
 842
 843 #define WLAN_SA_QUERY_TR_ID_LEN 2
 844
 845 /**
 846  * struct ieee80211_tpc_report_ie
 847  *
 848  * This structure refers to "TPC Report element"
 849  */
 850 struct ieee80211_tpc_report_ie {
 851         u8 tx_power;
 852         u8 link_margin;
 853 } __packed;
 854
 855 struct ieee80211_mgmt {
 856         __le16 frame_control;
 857         __le16 duration;
 858         u8 da[6];
 859         u8 sa[6];
 860         u8 bssid[6];
 861         __le16 seq_ctrl;
 862         union {
 863                 struct {
 864                         __le16 auth_alg;
 865                         __le16 auth_transaction;
 866                         __le16 status_code;
 867                         /* possibly followed by Challenge text */
 868                         u8 variable[0];
 869                 } __packed auth;
 870                 struct {
 871                         __le16 reason_code;
 872                 } __packed deauth;
 873                 struct {
 874                         __le16 capab_info;
 875                         __le16 listen_interval;
 876                         /* followed by SSID and Supported rates */
 877                         u8 variable[0];
 878                 } __packed assoc_req;
 879                 struct {
 880                         __le16 capab_info;
 881                         __le16 status_code;
 882                         __le16 aid;
 883                         /* followed by Supported rates */
 884                         u8 variable[0];
 885                 } __packed assoc_resp, reassoc_resp;
 886                 struct {
 887                         __le16 capab_info;
 888                         __le16 listen_interval;
 889                         u8 current_ap[6];
 890                         /* followed by SSID and Supported rates */
 891                         u8 variable[0];
 892                 } __packed reassoc_req;
 893                 struct {
 894                         __le16 reason_code;
 895                 } __packed disassoc;
 896                 struct {
 897                         __le64 timestamp;
 898                         __le16 beacon_int;
 899                         __le16 capab_info;
 900                         /* followed by some of SSID, Supported rates,
 901                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 902                         u8 variable[0];
 903                 } __packed beacon;
 904                 struct {
 905                         /* only variable items: SSID, Supported rates */
 906                         u8 variable[0];
 907                 } __packed probe_req;
 908                 struct {
 909                         __le64 timestamp;
 910                         __le16 beacon_int;
 911                         __le16 capab_info;
 912                         /* followed by some of SSID, Supported rates,
 913                          * FH Params, DS Params, CF Params, IBSS Params */
 914                         u8 variable[0];
 915                 } __packed probe_resp;
 916                 struct {
 917                         u8 category;
 918                         union {
 919                                 struct {
 920                                         u8 action_code;
 921                                         u8 dialog_token;
 922                                         u8 status_code;
 923                                         u8 variable[0];
 924                                 } __packed wme_action;
 925                                 struct{
 926                                         u8 action_code;
 927                                         u8 variable[0];
 928                                 } __packed chan_switch;
 929                                 struct{
 930                                         u8 action_code;
 931                                         struct ieee80211_ext_chansw_ie data;
 932                                         u8 variable[0];
 933                                 } __packed ext_chan_switch;
 934                                 struct{
 935                                         u8 action_code;
 936                                         u8 dialog_token;
 937                                         u8 element_id;
 938                                         u8 length;
 939                                         struct ieee80211_msrment_ie msr_elem;
 940                                 } __packed measurement;
 941                                 struct{
 942                                         u8 action_code;
 943                                         u8 dialog_token;
 944                                         __le16 capab;
 945                                         __le16 timeout;
 946                                         __le16 start_seq_num;
 947                                 } __packed addba_req;
 948                                 struct{
 949                                         u8 action_code;
 950                                         u8 dialog_token;
 951                                         __le16 status;
 952                                         __le16 capab;
 953                                         __le16 timeout;
 954                                 } __packed addba_resp;
 955                                 struct{
 956                                         u8 action_code;
 957                                         __le16 params;
 958                                         __le16 reason_code;
 959                                 } __packed delba;
 960                                 struct {
 961                                         u8 action_code;
 962                                         u8 variable[0];
 963                                 } __packed self_prot;
 964                                 struct{
 965                                         u8 action_code;
 966                                         u8 variable[0];
 967                                 } __packed mesh_action;
 968                                 struct {
 969                                         u8 action;
 970                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 971                                 } __packed sa_query;
 972                                 struct {
 973                                         u8 action;
 974                                         u8 smps_control;
 975                                 } __packed ht_smps;
 976                                 struct {
 977                                         u8 action_code;
 978                                         u8 chanwidth;
 979                                 } __packed ht_notify_cw;
 980                                 struct {
 981                                         u8 action_code;
 982                                         u8 dialog_token;
 983                                         __le16 capability;
 984                                         u8 variable[0];
 985                                 } __packed tdls_discover_resp;
 986                                 struct {
 987                                         u8 action_code;
 988                                         u8 operating_mode;
 989                                 } __packed vht_opmode_notif;
 990                                 struct {
 991                                         u8 action_code;
 992                                         u8 dialog_token;
 993                                         u8 tpc_elem_id;
 994                                         u8 tpc_elem_length;
 995                                         struct ieee80211_tpc_report_ie tpc;
 996                                 } __packed tpc_report;
 997                         } u;
 998                 } __packed action;
 999         } u;
1000 } __packed __aligned(2);
1001
1002 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1003 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1004
1005 /* mgmt header + 1 byte category code */
1006 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1007
1008
1009 /* Management MIC information element (IEEE 802.11w) */
1010 struct ieee80211_mmie {
1011         u8 element_id;
1012         u8 length;
1013         __le16 key_id;
1014         u8 sequence_number[6];
1015         u8 mic[8];
1016 } __packed;
1017
1018 struct ieee80211_vendor_ie {
1019         u8 element_id;
1020         u8 len;
1021         u8 oui[3];
1022         u8 oui_type;
1023 } __packed;
1024
1025 struct ieee80211_wmm_ac_param {
1026         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1027         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1028         __le16 txop_limit;
1029 } __packed;
1030
1031 struct ieee80211_wmm_param_ie {
1032         u8 element_id; /* Element ID: 221 (0xdd); */
1033         u8 len; /* Length: 24 */
1034         /* required fields for WMM version 1 */
1035         u8 oui[3]; /* 00:50:f2 */
1036         u8 oui_type; /* 2 */
1037         u8 oui_subtype; /* 1 */
1038         u8 version; /* 1 for WMM version 1.0 */
1039         u8 qos_info; /* AP/STA specific QoS info */
1040         u8 reserved; /* 0 */
1041         /* AC_BE, AC_BK, AC_VI, AC_VO */
1042         struct ieee80211_wmm_ac_param ac[4];
1043 } __packed;
1044
1045 /* Control frames */
1046 struct ieee80211_rts {
1047         __le16 frame_control;
1048         __le16 duration;
1049         u8 ra[6];
1050         u8 ta[6];
1051 } __packed __aligned(2);
1052
1053 struct ieee80211_cts {
1054         __le16 frame_control;
1055         __le16 duration;
1056         u8 ra[6];
1057 } __packed __aligned(2);
1058
1059 struct ieee80211_pspoll {
1060         __le16 frame_control;
1061         __le16 aid;
1062         u8 bssid[6];
1063         u8 ta[6];
1064 } __packed __aligned(2);
1065
1066 /* TDLS */
1067
1068 /* Link-id information element */
1069 struct ieee80211_tdls_lnkie {
1070         u8 ie_type; /* Link Identifier IE */
1071         u8 ie_len;
1072         u8 bssid[6];
1073         u8 init_sta[6];
1074         u8 resp_sta[6];
1075 } __packed;
1076
1077 struct ieee80211_tdls_data {
1078         u8 da[6];
1079         u8 sa[6];
1080         __be16 ether_type;
1081         u8 payload_type;
1082         u8 category;
1083         u8 action_code;
1084         union {
1085                 struct {
1086                         u8 dialog_token;
1087                         __le16 capability;
1088                         u8 variable[0];
1089                 } __packed setup_req;
1090                 struct {
1091                         __le16 status_code;
1092                         u8 dialog_token;
1093                         __le16 capability;
1094                         u8 variable[0];
1095                 } __packed setup_resp;
1096                 struct {
1097                         __le16 status_code;
1098                         u8 dialog_token;
1099                         u8 variable[0];
1100                 } __packed setup_cfm;
1101                 struct {
1102                         __le16 reason_code;
1103                         u8 variable[0];
1104                 } __packed teardown;
1105                 struct {
1106                         u8 dialog_token;
1107                         u8 variable[0];
1108                 } __packed discover_req;
1109         } u;
1110 } __packed;
1111
1112 /*
1113  * Peer-to-Peer IE attribute related definitions.
1114  */
1115 /**
1116  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1117  */
1118 enum ieee80211_p2p_attr_id {
1119         IEEE80211_P2P_ATTR_STATUS = 0,
1120         IEEE80211_P2P_ATTR_MINOR_REASON,
1121         IEEE80211_P2P_ATTR_CAPABILITY,
1122         IEEE80211_P2P_ATTR_DEVICE_ID,
1123         IEEE80211_P2P_ATTR_GO_INTENT,
1124         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1125         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1126         IEEE80211_P2P_ATTR_GROUP_BSSID,
1127         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1128         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1129         IEEE80211_P2P_ATTR_MANAGABILITY,
1130         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1131         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1132         IEEE80211_P2P_ATTR_DEVICE_INFO,
1133         IEEE80211_P2P_ATTR_GROUP_INFO,
1134         IEEE80211_P2P_ATTR_GROUP_ID,
1135         IEEE80211_P2P_ATTR_INTERFACE,
1136         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1137         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1138         /* 19 - 220: Reserved */
1139         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1140
1141         IEEE80211_P2P_ATTR_MAX
1142 };
1143
1144 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1145 /* Typical max value used here */
1146 #define IEEE80211_P2P_NOA_DESC_MAX      4
1147
1148 struct ieee80211_p2p_noa_desc {
1149         u8 count;
1150         __le32 duration;
1151         __le32 interval;
1152         __le32 start_time;
1153 } __packed;
1154
1155 struct ieee80211_p2p_noa_attr {
1156         u8 index;
1157         u8 oppps_ctwindow;
1158         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1159 } __packed;
1160
1161 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1162 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1163
1164 /**
1165  * struct ieee80211_bar - HT Block Ack Request
1166  *
1167  * This structure refers to "HT BlockAckReq" as
1168  * described in 802.11n draft section 7.2.1.7.1
1169  */
1170 struct ieee80211_bar {
1171         __le16 frame_control;
1172         __le16 duration;
1173         __u8 ra[6];
1174         __u8 ta[6];
1175         __le16 control;
1176         __le16 start_seq_num;
1177 } __packed __aligned(4);
1178
1179 /* 802.11 BA(R) control masks */
1180 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1181 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1182 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1183 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1184 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1185
1186 /**
1187  * struct ieee80211_ba - HT Block Ack
1188  *
1189  * This structure refers to "HT BlockAck" as
1190  * described in 802.11n draft section 7.2.1.8.1
1191  */
1192 struct ieee80211_ba {
1193         __le16 frame_control;
1194         __le16 duration;
1195         u8 ra[6];
1196         u8 ta[6];
1197         __le16 control;
1198
1199         __le16 start_seq_num;
1200         u8 bitmap[8];
1201 } __packed;
1202
1203 #define IEEE80211_HT_MCS_MASK_LEN               10
1204
1205 /**
1206  * struct ieee80211_mcs_info - MCS information
1207  * @rx_mask: RX mask
1208  * @rx_highest: highest supported RX rate. If set represents
1209  *      the highest supported RX data rate in units of 1 Mbps.
1210  *      If this field is 0 this value should not be used to
1211  *      consider the highest RX data rate supported.
1212  * @tx_params: TX parameters
1213  */
1214 struct ieee80211_mcs_info {
1215         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1216         __le16 rx_highest;
1217         u8 tx_params;
1218         u8 reserved[3];
1219 } __packed;
1220
1221 /* 802.11n HT capability MSC set */
1222 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1223 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1224 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1225 /* value 0 == 1 stream etc */
1226 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1227 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1228 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1229 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1230
1231 /*
1232  * 802.11n D5.0 20.3.5 / 20.6 says:
1233  * - indices 0 to 7 and 32 are single spatial stream
1234  * - 8 to 31 are multiple spatial streams using equal modulation
1235  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1236  * - remainder are multiple spatial streams using unequal modulation
1237  */
1238 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1239 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1240         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1241
1242 /**
1243  * struct ieee80211_ht_cap - HT capabilities
1244  *
1245  * This structure is the "HT capabilities element" as
1246  * described in 802.11n D5.0 7.3.2.57
1247  */
1248 struct ieee80211_ht_cap {
1249         __le16 cap_info;
1250         u8 ampdu_params_info;
1251
1252         /* 16 bytes MCS information */
1253         struct ieee80211_mcs_info mcs;
1254
1255         __le16 extended_ht_cap_info;
1256         __le32 tx_BF_cap_info;
1257         u8 antenna_selection_info;
1258 } __packed;
1259
1260 /* 802.11n HT capabilities masks (for cap_info) */
1261 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1262 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1263 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1264 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1265 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1266 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1267 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1268 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1269 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1270 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1271 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1272 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1273 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1274 #define IEEE80211_HT_CAP_RESERVED               0x2000
1275 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1276 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1277
1278 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1279 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1280 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1281 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1282 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1283 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1284 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1285 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1286
1287 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1288 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1289 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1290 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1291
1292 /*
1293  * Maximum length of AMPDU that the STA can receive.
1294  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1295  */
1296 enum ieee80211_max_ampdu_length_exp {
1297         IEEE80211_HT_MAX_AMPDU_8K = 0,
1298         IEEE80211_HT_MAX_AMPDU_16K = 1,
1299         IEEE80211_HT_MAX_AMPDU_32K = 2,
1300         IEEE80211_HT_MAX_AMPDU_64K = 3
1301 };
1302
1303 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1304
1305 /* Minimum MPDU start spacing */
1306 enum ieee80211_min_mpdu_spacing {
1307         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1308         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1309         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1310         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1311         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1312         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1313         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1314         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1315 };
1316
1317 /**
1318  * struct ieee80211_ht_operation - HT operation IE
1319  *
1320  * This structure is the "HT operation element" as
1321  * described in 802.11n-2009 7.3.2.57
1322  */
1323 struct ieee80211_ht_operation {
1324         u8 primary_chan;
1325         u8 ht_param;
1326         __le16 operation_mode;
1327         __le16 stbc_param;
1328         u8 basic_set[16];
1329 } __packed;
1330
1331 /* for ht_param */
1332 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1333 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1334 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1335 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1336 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1337 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1338
1339 /* for operation_mode */
1340 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1341 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1342 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1343 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1344 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1345 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1346 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1347
1348 /* for stbc_param */
1349 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1350 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1351 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1352 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1353 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1354 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1355
1356
1357 /* block-ack parameters */
1358 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1359 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1360 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1361 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1362 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1363
1364 /*
1365  * A-PMDU buffer sizes
1366  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1367  */
1368 #define IEEE80211_MIN_AMPDU_BUF 0x8
1369 #define IEEE80211_MAX_AMPDU_BUF 0x40
1370
1371
1372 /* Spatial Multiplexing Power Save Modes (for capability) */
1373 #define WLAN_HT_CAP_SM_PS_STATIC        0
1374 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1375 #define WLAN_HT_CAP_SM_PS_INVALID       2
1376 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1377
1378 /* for SM power control field lower two bits */
1379 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1380 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1381 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1382
1383 /**
1384  * struct ieee80211_vht_mcs_info - VHT MCS information
1385  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1386  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1387  *      STA can receive. Rate expressed in units of 1 Mbps.
1388  *      If this field is 0 this value should not be used to
1389  *      consider the highest RX data rate supported.
1390  *      The top 3 bits of this field are reserved.
1391  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1392  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1393  *      STA can transmit. Rate expressed in units of 1 Mbps.
1394  *      If this field is 0 this value should not be used to
1395  *      consider the highest TX data rate supported.
1396  *      The top 3 bits of this field are reserved.
1397  */
1398 struct ieee80211_vht_mcs_info {
1399         __le16 rx_mcs_map;
1400         __le16 rx_highest;
1401         __le16 tx_mcs_map;
1402         __le16 tx_highest;
1403 } __packed;
1404
1405 /**
1406  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1407  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1408  *      number of streams
1409  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1410  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1411  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1412  *
1413  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1414  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1415  * both split into 8 subfields by number of streams. These values indicate
1416  * which MCSes are supported for the number of streams the value appears
1417  * for.
1418  */
1419 enum ieee80211_vht_mcs_support {
1420         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1421         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1422         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1423         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1424 };
1425
1426 /**
1427  * struct ieee80211_vht_cap - VHT capabilities
1428  *
1429  * This structure is the "VHT capabilities element" as
1430  * described in 802.11ac D3.0 8.4.2.160
1431  * @vht_cap_info: VHT capability info
1432  * @supp_mcs: VHT MCS supported rates
1433  */
1434 struct ieee80211_vht_cap {
1435         __le32 vht_cap_info;
1436         struct ieee80211_vht_mcs_info supp_mcs;
1437 } __packed;
1438
1439 /**
1440  * enum ieee80211_vht_chanwidth - VHT channel width
1441  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1442  *      determine the channel width (20 or 40 MHz)
1443  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1444  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1445  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1446  */
1447 enum ieee80211_vht_chanwidth {
1448         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1449         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1450         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1451         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1452 };
1453
1454 /**
1455  * struct ieee80211_vht_operation - VHT operation IE
1456  *
1457  * This structure is the "VHT operation element" as
1458  * described in 802.11ac D3.0 8.4.2.161
1459  * @chan_width: Operating channel width
1460  * @center_freq_seg1_idx: center freq segment 1 index
1461  * @center_freq_seg2_idx: center freq segment 2 index
1462  * @basic_mcs_set: VHT Basic MCS rate set
1463  */
1464 struct ieee80211_vht_operation {
1465         u8 chan_width;
1466         u8 center_freq_seg1_idx;
1467         u8 center_freq_seg2_idx;
1468         __le16 basic_mcs_set;
1469 } __packed;
1470
1471
1472 /* 802.11ac VHT Capabilities */
1473 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1474 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1475 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1476 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1477 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1478 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1479 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1480 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1481 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1482 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1483 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1484 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1485 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1486 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1487 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1488 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1489 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1490 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1491                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1492 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1493 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1494                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1495 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1496 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1497 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1498 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1499 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1500 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1501                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1502 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1503 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1504 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1505 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1506
1507 /* Authentication algorithms */
1508 #define WLAN_AUTH_OPEN 0
1509 #define WLAN_AUTH_SHARED_KEY 1
1510 #define WLAN_AUTH_FT 2
1511 #define WLAN_AUTH_SAE 3
1512 #define WLAN_AUTH_LEAP 128
1513
1514 #define WLAN_AUTH_CHALLENGE_LEN 128
1515
1516 #define WLAN_CAPABILITY_ESS             (1<<0)
1517 #define WLAN_CAPABILITY_IBSS            (1<<1)
1518
1519 /*
1520  * A mesh STA sets the ESS and IBSS capability bits to zero.
1521  * however, this holds true for p2p probe responses (in the p2p_find
1522  * phase) as well.
1523  */
1524 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1525         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1526
1527 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1528 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1529 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1530 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1531 #define WLAN_CAPABILITY_PBCC            (1<<6)
1532 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1533
1534 /* 802.11h */
1535 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1536 #define WLAN_CAPABILITY_QOS             (1<<9)
1537 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1538 #define WLAN_CAPABILITY_APSD            (1<<11)
1539 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1540 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1541 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1542 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1543
1544 /* DMG (60gHz) 802.11ad */
1545 /* type - bits 0..1 */
1546 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1547 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1548 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1549 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1550
1551 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1552 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1553 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1554 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1555
1556 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1557 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1558
1559 /* measurement */
1560 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1561 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1562 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1563
1564 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1565 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1566 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1567
1568 /* 802.11g ERP information element */
1569 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1570 #define WLAN_ERP_USE_PROTECTION (1<<1)
1571 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1572
1573 /* WLAN_ERP_BARKER_PREAMBLE values */
1574 enum {
1575         WLAN_ERP_PREAMBLE_SHORT = 0,
1576         WLAN_ERP_PREAMBLE_LONG = 1,
1577 };
1578
1579 /* Band ID, 802.11ad #8.4.1.45 */
1580 enum {
1581         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1582         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1583         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1584         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1585         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1586         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1587 };
1588
1589 /* Status codes */
1590 enum ieee80211_statuscode {
1591         WLAN_STATUS_SUCCESS = 0,
1592         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1593         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1594         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1595         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1596         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1597         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1598         WLAN_STATUS_CHALLENGE_FAIL = 15,
1599         WLAN_STATUS_AUTH_TIMEOUT = 16,
1600         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1601         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1602         /* 802.11b */
1603         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1604         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1605         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1606         /* 802.11h */
1607         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1608         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1609         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1610         /* 802.11g */
1611         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1612         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1613         /* 802.11w */
1614         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1615         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1616         /* 802.11i */
1617         WLAN_STATUS_INVALID_IE = 40,
1618         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1619         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1620         WLAN_STATUS_INVALID_AKMP = 43,
1621         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1622         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1623         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1624         /* 802.11e */
1625         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1626         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1627         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1628         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1629         WLAN_STATUS_REQUEST_DECLINED = 37,
1630         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1631         WLAN_STATUS_CHANGE_TSPEC = 39,
1632         WLAN_STATUS_WAIT_TS_DELAY = 47,
1633         WLAN_STATUS_NO_DIRECT_LINK = 48,
1634         WLAN_STATUS_STA_NOT_PRESENT = 49,
1635         WLAN_STATUS_STA_NOT_QSTA = 50,
1636         /* 802.11s */
1637         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1638         WLAN_STATUS_FCG_NOT_SUPP = 78,
1639         WLAN_STATUS_STA_NO_TBTT = 78,
1640         /* 802.11ad */
1641         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1642         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1643         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1644         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1645         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1646         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1647         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1648         WLAN_STATUS_REJECT_DSE_BAND = 96,
1649         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1650         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1651 };
1652
1653
1654 /* Reason codes */
1655 enum ieee80211_reasoncode {
1656         WLAN_REASON_UNSPECIFIED = 1,
1657         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1658         WLAN_REASON_DEAUTH_LEAVING = 3,
1659         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1660         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1661         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1662         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1663         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1664         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1665         /* 802.11h */
1666         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1667         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1668         /* 802.11i */
1669         WLAN_REASON_INVALID_IE = 13,
1670         WLAN_REASON_MIC_FAILURE = 14,
1671         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1672         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1673         WLAN_REASON_IE_DIFFERENT = 17,
1674         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1675         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1676         WLAN_REASON_INVALID_AKMP = 20,
1677         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1678         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1679         WLAN_REASON_IEEE8021X_FAILED = 23,
1680         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1681         /* TDLS (802.11z) */
1682         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1683         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1684         /* 802.11e */
1685         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1686         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1687         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1688         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1689         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1690         WLAN_REASON_QSTA_NOT_USE = 37,
1691         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1692         WLAN_REASON_QSTA_TIMEOUT = 39,
1693         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1694         /* 802.11s */
1695         WLAN_REASON_MESH_PEER_CANCELED = 52,
1696         WLAN_REASON_MESH_MAX_PEERS = 53,
1697         WLAN_REASON_MESH_CONFIG = 54,
1698         WLAN_REASON_MESH_CLOSE = 55,
1699         WLAN_REASON_MESH_MAX_RETRIES = 56,
1700         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1701         WLAN_REASON_MESH_INVALID_GTK = 58,
1702         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1703         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1704         WLAN_REASON_MESH_PATH_ERROR = 61,
1705         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1706         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1707         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1708         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1709         WLAN_REASON_MESH_CHAN = 66,
1710 };
1711
1712
1713 /* Information Element IDs */
1714 enum ieee80211_eid {
1715         WLAN_EID_SSID = 0,
1716         WLAN_EID_SUPP_RATES = 1,
1717         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1718         WLAN_EID_DS_PARAMS = 3,
1719         WLAN_EID_CF_PARAMS = 4,
1720         WLAN_EID_TIM = 5,
1721         WLAN_EID_IBSS_PARAMS = 6,
1722         WLAN_EID_COUNTRY = 7,
1723         WLAN_EID_HP_PARAMS = 8,
1724         WLAN_EID_HP_TABLE = 9,
1725         WLAN_EID_REQUEST = 10,
1726         WLAN_EID_QBSS_LOAD = 11,
1727         WLAN_EID_EDCA_PARAM_SET = 12,
1728         WLAN_EID_TSPEC = 13,
1729         WLAN_EID_TCLAS = 14,
1730         WLAN_EID_SCHEDULE = 15,
1731         WLAN_EID_CHALLENGE = 16,
1732         /* 17-31 reserved for challenge text extension */
1733         WLAN_EID_PWR_CONSTRAINT = 32,
1734         WLAN_EID_PWR_CAPABILITY = 33,
1735         WLAN_EID_TPC_REQUEST = 34,
1736         WLAN_EID_TPC_REPORT = 35,
1737         WLAN_EID_SUPPORTED_CHANNELS = 36,
1738         WLAN_EID_CHANNEL_SWITCH = 37,
1739         WLAN_EID_MEASURE_REQUEST = 38,
1740         WLAN_EID_MEASURE_REPORT = 39,
1741         WLAN_EID_QUIET = 40,
1742         WLAN_EID_IBSS_DFS = 41,
1743         WLAN_EID_ERP_INFO = 42,
1744         WLAN_EID_TS_DELAY = 43,
1745         WLAN_EID_TCLAS_PROCESSING = 44,
1746         WLAN_EID_HT_CAPABILITY = 45,
1747         WLAN_EID_QOS_CAPA = 46,
1748         /* 47 reserved for Broadcom */
1749         WLAN_EID_RSN = 48,
1750         WLAN_EID_802_15_COEX = 49,
1751         WLAN_EID_EXT_SUPP_RATES = 50,
1752         WLAN_EID_AP_CHAN_REPORT = 51,
1753         WLAN_EID_NEIGHBOR_REPORT = 52,
1754         WLAN_EID_RCPI = 53,
1755         WLAN_EID_MOBILITY_DOMAIN = 54,
1756         WLAN_EID_FAST_BSS_TRANSITION = 55,
1757         WLAN_EID_TIMEOUT_INTERVAL = 56,
1758         WLAN_EID_RIC_DATA = 57,
1759         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1760         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1761         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1762         WLAN_EID_HT_OPERATION = 61,
1763         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1764         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1765         WLAN_EID_ANTENNA_INFO = 64,
1766         WLAN_EID_RSNI = 65,
1767         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1768         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1769         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1770         WLAN_EID_TIME_ADVERTISEMENT = 69,
1771         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1772         WLAN_EID_MULTIPLE_BSSID = 71,
1773         WLAN_EID_BSS_COEX_2040 = 72,
1774         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1775         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1776         WLAN_EID_RIC_DESCRIPTOR = 75,
1777         WLAN_EID_MMIE = 76,
1778         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1779         WLAN_EID_EVENT_REQUEST = 78,
1780         WLAN_EID_EVENT_REPORT = 79,
1781         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1782         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1783         WLAN_EID_LOCATION_PARAMS = 82,
1784         WLAN_EID_NON_TX_BSSID_CAP =  83,
1785         WLAN_EID_SSID_LIST = 84,
1786         WLAN_EID_MULTI_BSSID_IDX = 85,
1787         WLAN_EID_FMS_DESCRIPTOR = 86,
1788         WLAN_EID_FMS_REQUEST = 87,
1789         WLAN_EID_FMS_RESPONSE = 88,
1790         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1791         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1792         WLAN_EID_TSF_REQUEST = 91,
1793         WLAN_EID_TSF_RESPOSNE = 92,
1794         WLAN_EID_WNM_SLEEP_MODE = 93,
1795         WLAN_EID_TIM_BCAST_REQ = 94,
1796         WLAN_EID_TIM_BCAST_RESP = 95,
1797         WLAN_EID_COLL_IF_REPORT = 96,
1798         WLAN_EID_CHANNEL_USAGE = 97,
1799         WLAN_EID_TIME_ZONE = 98,
1800         WLAN_EID_DMS_REQUEST = 99,
1801         WLAN_EID_DMS_RESPONSE = 100,
1802         WLAN_EID_LINK_ID = 101,
1803         WLAN_EID_WAKEUP_SCHEDUL = 102,
1804         /* 103 reserved */
1805         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1806         WLAN_EID_PTI_CONTROL = 105,
1807         WLAN_EID_PU_BUFFER_STATUS = 106,
1808         WLAN_EID_INTERWORKING = 107,
1809         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1810         WLAN_EID_EXPEDITED_BW_REQ = 109,
1811         WLAN_EID_QOS_MAP_SET = 110,
1812         WLAN_EID_ROAMING_CONSORTIUM = 111,
1813         WLAN_EID_EMERGENCY_ALERT = 112,
1814         WLAN_EID_MESH_CONFIG = 113,
1815         WLAN_EID_MESH_ID = 114,
1816         WLAN_EID_LINK_METRIC_REPORT = 115,
1817         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1818         WLAN_EID_PEER_MGMT = 117,
1819         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1820         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1821         WLAN_EID_BEACON_TIMING = 120,
1822         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1823         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1824         WLAN_EID_MCCAOP_ADVERT = 123,
1825         WLAN_EID_MCCAOP_TEARDOWN = 124,
1826         WLAN_EID_GANN = 125,
1827         WLAN_EID_RANN = 126,
1828         WLAN_EID_EXT_CAPABILITY = 127,
1829         /* 128, 129 reserved for Agere */
1830         WLAN_EID_PREQ = 130,
1831         WLAN_EID_PREP = 131,
1832         WLAN_EID_PERR = 132,
1833         /* 133-136 reserved for Cisco */
1834         WLAN_EID_PXU = 137,
1835         WLAN_EID_PXUC = 138,
1836         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1837         WLAN_EID_MIC = 140,
1838         WLAN_EID_DESTINATION_URI = 141,
1839         WLAN_EID_UAPSD_COEX = 142,
1840         WLAN_EID_WAKEUP_SCHEDULE = 143,
1841         WLAN_EID_EXT_SCHEDULE = 144,
1842         WLAN_EID_STA_AVAILABILITY = 145,
1843         WLAN_EID_DMG_TSPEC = 146,
1844         WLAN_EID_DMG_AT = 147,
1845         WLAN_EID_DMG_CAP = 148,
1846         /* 149-150 reserved for Cisco */
1847         WLAN_EID_DMG_OPERATION = 151,
1848         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1849         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1850         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1851         /* 155-156 reserved for Cisco */
1852         WLAN_EID_AWAKE_WINDOW = 157,
1853         WLAN_EID_MULTI_BAND = 158,
1854         WLAN_EID_ADDBA_EXT = 159,
1855         WLAN_EID_NEXT_PCP_LIST = 160,
1856         WLAN_EID_PCP_HANDOVER = 161,
1857         WLAN_EID_DMG_LINK_MARGIN = 162,
1858         WLAN_EID_SWITCHING_STREAM = 163,
1859         WLAN_EID_SESSION_TRANSITION = 164,
1860         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1861         WLAN_EID_CLUSTER_REPORT = 166,
1862         WLAN_EID_RELAY_CAP = 167,
1863         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1864         WLAN_EID_BEAM_LINK_MAINT = 169,
1865         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1866         WLAN_EID_U_PID = 171,
1867         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1868         /* 173 reserved for Symbol */
1869         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1870         WLAN_EID_QUIET_PERIOD_REQ = 175,
1871         /* 176 reserved for Symbol */
1872         WLAN_EID_QUIET_PERIOD_RESP = 177,
1873         /* 178-179 reserved for Symbol */
1874         /* 180 reserved for ISO/IEC 20011 */
1875         WLAN_EID_EPAC_POLICY = 182,
1876         WLAN_EID_CLISTER_TIME_OFF = 183,
1877         WLAN_EID_INTER_AC_PRIO = 184,
1878         WLAN_EID_SCS_DESCRIPTOR = 185,
1879         WLAN_EID_QLOAD_REPORT = 186,
1880         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1881         WLAN_EID_HL_STREAM_ID = 188,
1882         WLAN_EID_GCR_GROUP_ADDR = 189,
1883         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1884         WLAN_EID_VHT_CAPABILITY = 191,
1885         WLAN_EID_VHT_OPERATION = 192,
1886         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1887         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1888         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1889         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1890         WLAN_EID_AID = 197,
1891         WLAN_EID_QUIET_CHANNEL = 198,
1892         WLAN_EID_OPMODE_NOTIF = 199,
1893
1894         WLAN_EID_VENDOR_SPECIFIC = 221,
1895         WLAN_EID_QOS_PARAMETER = 222,
1896 };
1897
1898 /* Action category code */
1899 enum ieee80211_category {
1900         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1901         WLAN_CATEGORY_QOS = 1,
1902         WLAN_CATEGORY_DLS = 2,
1903         WLAN_CATEGORY_BACK = 3,
1904         WLAN_CATEGORY_PUBLIC = 4,
1905         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1906         WLAN_CATEGORY_HT = 7,
1907         WLAN_CATEGORY_SA_QUERY = 8,
1908         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1909         WLAN_CATEGORY_TDLS = 12,
1910         WLAN_CATEGORY_MESH_ACTION = 13,
1911         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1912         WLAN_CATEGORY_SELF_PROTECTED = 15,
1913         WLAN_CATEGORY_DMG = 16,
1914         WLAN_CATEGORY_WMM = 17,
1915         WLAN_CATEGORY_FST = 18,
1916         WLAN_CATEGORY_UNPROT_DMG = 20,
1917         WLAN_CATEGORY_VHT = 21,
1918         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1919         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1920 };
1921
1922 /* SPECTRUM_MGMT action code */
1923 enum ieee80211_spectrum_mgmt_actioncode {
1924         WLAN_ACTION_SPCT_MSR_REQ = 0,
1925         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1926         WLAN_ACTION_SPCT_TPC_REQ = 2,
1927         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1928         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1929 };
1930
1931 /* HT action codes */
1932 enum ieee80211_ht_actioncode {
1933         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1934         WLAN_HT_ACTION_SMPS = 1,
1935         WLAN_HT_ACTION_PSMP = 2,
1936         WLAN_HT_ACTION_PCO_PHASE = 3,
1937         WLAN_HT_ACTION_CSI = 4,
1938         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1939         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1940         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1941 };
1942
1943 /* VHT action codes */
1944 enum ieee80211_vht_actioncode {
1945         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1946         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1947         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1948 };
1949
1950 /* Self Protected Action codes */
1951 enum ieee80211_self_protected_actioncode {
1952         WLAN_SP_RESERVED = 0,
1953         WLAN_SP_MESH_PEERING_OPEN = 1,
1954         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1955         WLAN_SP_MESH_PEERING_CLOSE = 3,
1956         WLAN_SP_MGK_INFORM = 4,
1957         WLAN_SP_MGK_ACK = 5,
1958 };
1959
1960 /* Mesh action codes */
1961 enum ieee80211_mesh_actioncode {
1962         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1963         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1964         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1965         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1966         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1967         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1968         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1969         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1970         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1971         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1972         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1973 };
1974
1975 /* Security key length */
1976 enum ieee80211_key_len {
1977         WLAN_KEY_LEN_WEP40 = 5,
1978         WLAN_KEY_LEN_WEP104 = 13,
1979         WLAN_KEY_LEN_CCMP = 16,
1980         WLAN_KEY_LEN_TKIP = 32,
1981         WLAN_KEY_LEN_AES_CMAC = 16,
1982         WLAN_KEY_LEN_SMS4 = 32,
1983 };
1984
1985 #define IEEE80211_WEP_IV_LEN            4
1986 #define IEEE80211_WEP_ICV_LEN           4
1987 #define IEEE80211_CCMP_HDR_LEN          8
1988 #define IEEE80211_CCMP_MIC_LEN          8
1989 #define IEEE80211_CCMP_PN_LEN           6
1990 #define IEEE80211_TKIP_IV_LEN           8
1991 #define IEEE80211_TKIP_ICV_LEN          4
1992 #define IEEE80211_CMAC_PN_LEN           6
1993
1994 /* Public action codes */
1995 enum ieee80211_pub_actioncode {
1996         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
1997         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1998 };
1999
2000 /* TDLS action codes */
2001 enum ieee80211_tdls_actioncode {
2002         WLAN_TDLS_SETUP_REQUEST = 0,
2003         WLAN_TDLS_SETUP_RESPONSE = 1,
2004         WLAN_TDLS_SETUP_CONFIRM = 2,
2005         WLAN_TDLS_TEARDOWN = 3,
2006         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2007         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2008         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2009         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2010         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2011         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2012         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2013 };
2014
2015 /* Interworking capabilities are set in 7th bit of 4th byte of the
2016  * @WLAN_EID_EXT_CAPABILITY information element
2017  */
2018 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2019
2020 /*
2021  * TDLS capabililites to be enabled in the 5th byte of the
2022  * @WLAN_EID_EXT_CAPABILITY information element
2023  */
2024 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2025 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2026
2027 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2028 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(7)
2029
2030 /* TDLS specific payload type in the LLC/SNAP header */
2031 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2032
2033 /**
2034  * enum - mesh synchronization method identifier
2035  *
2036  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2037  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2038  *      that will be specified in a vendor specific information element
2039  */
2040 enum {
2041         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2042         IEEE80211_SYNC_METHOD_VENDOR = 255,
2043 };
2044
2045 /**
2046  * enum - mesh path selection protocol identifier
2047  *
2048  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2049  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2050  *      be specified in a vendor specific information element
2051  */
2052 enum {
2053         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2054         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2055 };
2056
2057 /**
2058  * enum - mesh path selection metric identifier
2059  *
2060  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2061  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2062  *      specified in a vendor specific information element
2063  */
2064 enum {
2065         IEEE80211_PATH_METRIC_AIRTIME = 1,
2066         IEEE80211_PATH_METRIC_VENDOR = 255,
2067 };
2068
2069 /**
2070  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2071  *
2072  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2073  *
2074  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2075  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2076  *      this value
2077  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2078  *      the proactive PREQ with proactive PREP subfield set to 0
2079  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2080  *      supports the proactive PREQ with proactive PREP subfield set to 1
2081  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2082  *      the proactive RANN
2083  */
2084 enum ieee80211_root_mode_identifier {
2085         IEEE80211_ROOTMODE_NO_ROOT = 0,
2086         IEEE80211_ROOTMODE_ROOT = 1,
2087         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2088         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2089         IEEE80211_PROACTIVE_RANN = 4,
2090 };
2091
2092 /*
2093  * IEEE 802.11-2007 7.3.2.9 Country information element
2094  *
2095  * Minimum length is 8 octets, ie len must be evenly
2096  * divisible by 2
2097  */
2098
2099 /* Although the spec says 8 I'm seeing 6 in practice */
2100 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2101
2102 /* The Country String field of the element shall be 3 octets in length */
2103 #define IEEE80211_COUNTRY_STRING_LEN    3
2104
2105 /*
2106  * For regulatory extension stuff see IEEE 802.11-2007
2107  * Annex I (page 1141) and Annex J (page 1147). Also
2108  * review 7.3.2.9.
2109  *
2110  * When dot11RegulatoryClassesRequired is true and the
2111  * first_channel/reg_extension_id is >= 201 then the IE
2112  * compromises of the 'ext' struct represented below:
2113  *
2114  *  - Regulatory extension ID - when generating IE this just needs
2115  *    to be monotonically increasing for each triplet passed in
2116  *    the IE
2117  *  - Regulatory class - index into set of rules
2118  *  - Coverage class - index into air propagation time (Table 7-27),
2119  *    in microseconds, you can compute the air propagation time from
2120  *    the index by multiplying by 3, so index 10 yields a propagation
2121  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2122  *    yet. A value of 0 inicates air propagation of <= 1 us.
2123  *
2124  *  See also Table I.2 for Emission limit sets and table
2125  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2126  *  a reg_class to an emission limit set and behavior limit set.
2127  */
2128 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2129
2130 /*
2131  *  Channels numbers in the IE must be monotonically increasing
2132  *  if dot11RegulatoryClassesRequired is not true.
2133  *
2134  *  If dot11RegulatoryClassesRequired is true consecutive
2135  *  subband triplets following a regulatory triplet shall
2136  *  have monotonically increasing first_channel number fields.
2137  *
2138  *  Channel numbers shall not overlap.
2139  *
2140  *  Note that max_power is signed.
2141  */
2142 struct ieee80211_country_ie_triplet {
2143         union {
2144                 struct {
2145                         u8 first_channel;
2146                         u8 num_channels;
2147                         s8 max_power;
2148                 } __packed chans;
2149                 struct {
2150                         u8 reg_extension_id;
2151                         u8 reg_class;
2152                         u8 coverage_class;
2153                 } __packed ext;
2154         };
2155 } __packed;
2156
2157 enum ieee80211_timeout_interval_type {
2158         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2159         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2160         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2161 };
2162
2163 /**
2164  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2165  * @type: type, see &enum ieee80211_timeout_interval_type
2166  * @value: timeout interval value
2167  */
2168 struct ieee80211_timeout_interval_ie {
2169         u8 type;
2170         __le32 value;
2171 } __packed;
2172
2173 /* BACK action code */
2174 enum ieee80211_back_actioncode {
2175         WLAN_ACTION_ADDBA_REQ = 0,
2176         WLAN_ACTION_ADDBA_RESP = 1,
2177         WLAN_ACTION_DELBA = 2,
2178 };
2179
2180 /* BACK (block-ack) parties */
2181 enum ieee80211_back_parties {
2182         WLAN_BACK_RECIPIENT = 0,
2183         WLAN_BACK_INITIATOR = 1,
2184 };
2185
2186 /* SA Query action */
2187 enum ieee80211_sa_query_action {
2188         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2189         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2190 };
2191
2192
2193 /* cipher suite selectors */
2194 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2195 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2196 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2197 /* reserved:                            0x000FAC03 */
2198 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2199 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2200 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2201 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2202
2203 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2204
2205 /* AKM suite selectors */
2206 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2207 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2208 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
2209 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2210
2211 #define WLAN_MAX_KEY_LEN                32
2212
2213 #define WLAN_PMKID_LEN                  16
2214
2215 #define WLAN_OUI_WFA                    0x506f9a
2216 #define WLAN_OUI_TYPE_WFA_P2P           9
2217 #define WLAN_OUI_MICROSOFT              0x0050f2
2218 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2219 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2220 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2221
2222 /*
2223  * WMM/802.11e Tspec Element
2224  */
2225 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2226 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2227
2228 enum ieee80211_tspec_status_code {
2229         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2230         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2231 };
2232
2233 struct ieee80211_tspec_ie {
2234         u8 element_id;
2235         u8 len;
2236         u8 oui[3];
2237         u8 oui_type;
2238         u8 oui_subtype;
2239         u8 version;
2240         __le16 tsinfo;
2241         u8 tsinfo_resvd;
2242         __le16 nominal_msdu;
2243         __le16 max_msdu;
2244         __le32 min_service_int;
2245         __le32 max_service_int;
2246         __le32 inactivity_int;
2247         __le32 suspension_int;
2248         __le32 service_start_time;
2249         __le32 min_data_rate;
2250         __le32 mean_data_rate;
2251         __le32 peak_data_rate;
2252         __le32 max_burst_size;
2253         __le32 delay_bound;
2254         __le32 min_phy_rate;
2255         __le16 sba;
2256         __le16 medium_time;
2257 } __packed;
2258
2259 /**
2260  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2261  * @hdr: the frame
2262  *
2263  * The qos ctrl bytes come after the frame_control, duration, seq_num
2264  * and 3 or 4 addresses of length ETH_ALEN.
2265  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2266  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2267  */
2268 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2269 {
2270         if (ieee80211_has_a4(hdr->frame_control))
2271                 return (u8 *)hdr + 30;
2272         else
2273                 return (u8 *)hdr + 24;
2274 }
2275
2276 /**
2277  * ieee80211_get_SA - get pointer to SA
2278  * @hdr: the frame
2279  *
2280  * Given an 802.11 frame, this function returns the offset
2281  * to the source address (SA). It does not verify that the
2282  * header is long enough to contain the address, and the
2283  * header must be long enough to contain the frame control
2284  * field.
2285  */
2286 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2287 {
2288         if (ieee80211_has_a4(hdr->frame_control))
2289                 return hdr->addr4;
2290         if (ieee80211_has_fromds(hdr->frame_control))
2291                 return hdr->addr3;
2292         return hdr->addr2;
2293 }
2294
2295 /**
2296  * ieee80211_get_DA - get pointer to DA
2297  * @hdr: the frame
2298  *
2299  * Given an 802.11 frame, this function returns the offset
2300  * to the destination address (DA). It does not verify that
2301  * the header is long enough to contain the address, and the
2302  * header must be long enough to contain the frame control
2303  * field.
2304  */
2305 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2306 {
2307         if (ieee80211_has_tods(hdr->frame_control))
2308                 return hdr->addr3;
2309         else
2310                 return hdr->addr1;
2311 }
2312
2313 /**
2314  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2315  * @hdr: the frame (buffer must include at least the first octet of payload)
2316  */
2317 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2318 {
2319         if (ieee80211_is_disassoc(hdr->frame_control) ||
2320             ieee80211_is_deauth(hdr->frame_control))
2321                 return true;
2322
2323         if (ieee80211_is_action(hdr->frame_control)) {
2324                 u8 *category;
2325
2326                 /*
2327                  * Action frames, excluding Public Action frames, are Robust
2328                  * Management Frames. However, if we are looking at a Protected
2329                  * frame, skip the check since the data may be encrypted and
2330                  * the frame has already been found to be a Robust Management
2331                  * Frame (by the other end).
2332                  */
2333                 if (ieee80211_has_protected(hdr->frame_control))
2334                         return true;
2335                 category = ((u8 *) hdr) + 24;
2336                 return *category != WLAN_CATEGORY_PUBLIC &&
2337                         *category != WLAN_CATEGORY_HT &&
2338                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2339                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2340         }
2341
2342         return false;
2343 }
2344
2345 /**
2346  * ieee80211_is_public_action - check if frame is a public action frame
2347  * @hdr: the frame
2348  * @len: length of the frame
2349  */
2350 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2351                                               size_t len)
2352 {
2353         struct ieee80211_mgmt *mgmt = (void *)hdr;
2354
2355         if (len < IEEE80211_MIN_ACTION_SIZE)
2356                 return false;
2357         if (!ieee80211_is_action(hdr->frame_control))
2358                 return false;
2359         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2360 }
2361
2362 /**
2363  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2364  * @tu: the TUs
2365  */
2366 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2367 {
2368         return 1024 * tu;
2369 }
2370
2371 /**
2372  * ieee80211_check_tim - check if AID bit is set in TIM
2373  * @tim: the TIM IE
2374  * @tim_len: length of the TIM IE
2375  * @aid: the AID to look for
2376  */
2377 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2378                                        u8 tim_len, u16 aid)
2379 {
2380         u8 mask;
2381         u8 indexn0, indexn1, indexn2;
2382
2383         if (unlikely(!tim || tim_len < sizeof(*tim)))
2384                 return false;
2385
2386         aid &= 0x3fff;
2387         indexn0 = aid / 8;
2388         mask  = 1 << (aid & 7);
2389
2390         indexn1 = tim->bitmap_ctrl & 0xfe;
2391         indexn2 = tim_len + indexn1 - 4;
2392
2393         if (indexn0 < indexn1 || indexn0 > indexn2)
2394                 return false;
2395
2396         indexn0 -= indexn1;
2397
2398         return !!(tim->virtual_map[indexn0] & mask);
2399 }
2400
2401 /* convert time units */
2402 #define TU_TO_JIFFIES(x)       (usecs_to_jiffies((x) * 1024))
2403 #define TU_TO_EXP_TIME(x)      (jiffies + TU_TO_JIFFIES(x))
2404
2405 #endif /* __LINUX_IEEE80211_H */