include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef LINUX_IEEE80211_H
  16 #define LINUX_IEEE80211_H
  17
  18 #include <linux/types.h>
  19 #include <asm/byteorder.h>
  20
  21 /*
  22  * DS bit usage
  23  *
  24  * TA = transmitter address
  25  * RA = receiver address
  26  * DA = destination address
  27  * SA = source address
  28  *
  29  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  30  * -----------------------------------------------------------------
  31  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  32  *  0       1       DA      BSSID   SA      -       AP -> STA
  33  *  1       0       BSSID   SA      DA      -       AP <- STA
  34  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  35  */
  36
  37 #define FCS_LEN 4
  38
  39 #define IEEE80211_FCTL_VERS             0x0003
  40 #define IEEE80211_FCTL_FTYPE            0x000c
  41 #define IEEE80211_FCTL_STYPE            0x00f0
  42 #define IEEE80211_FCTL_TODS             0x0100
  43 #define IEEE80211_FCTL_FROMDS           0x0200
  44 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  45 #define IEEE80211_FCTL_RETRY            0x0800
  46 #define IEEE80211_FCTL_PM               0x1000
  47 #define IEEE80211_FCTL_MOREDATA         0x2000
  48 #define IEEE80211_FCTL_PROTECTED        0x4000
  49 #define IEEE80211_FCTL_ORDER            0x8000
  50 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  51
  52 #define IEEE80211_SCTL_FRAG             0x000F
  53 #define IEEE80211_SCTL_SEQ              0xFFF0
  54
  55 #define IEEE80211_FTYPE_MGMT            0x0000
  56 #define IEEE80211_FTYPE_CTL             0x0004
  57 #define IEEE80211_FTYPE_DATA            0x0008
  58 #define IEEE80211_FTYPE_EXT             0x000c
  59
  60 /* management */
  61 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  62 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  63 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  64 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  65 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  66 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  67 #define IEEE80211_STYPE_BEACON          0x0080
  68 #define IEEE80211_STYPE_ATIM            0x0090
  69 #define IEEE80211_STYPE_DISASSOC        0x00A0
  70 #define IEEE80211_STYPE_AUTH            0x00B0
  71 #define IEEE80211_STYPE_DEAUTH          0x00C0
  72 #define IEEE80211_STYPE_ACTION          0x00D0
  73
  74 /* control */
  75 #define IEEE80211_STYPE_CTL_EXT         0x0060
  76 #define IEEE80211_STYPE_BACK_REQ        0x0080
  77 #define IEEE80211_STYPE_BACK            0x0090
  78 #define IEEE80211_STYPE_PSPOLL          0x00A0
  79 #define IEEE80211_STYPE_RTS             0x00B0
  80 #define IEEE80211_STYPE_CTS             0x00C0
  81 #define IEEE80211_STYPE_ACK             0x00D0
  82 #define IEEE80211_STYPE_CFEND           0x00E0
  83 #define IEEE80211_STYPE_CFENDACK        0x00F0
  84
  85 /* data */
  86 #define IEEE80211_STYPE_DATA                    0x0000
  87 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  88 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  89 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  90 #define IEEE80211_STYPE_NULLFUNC                0x0040
  91 #define IEEE80211_STYPE_CFACK                   0x0050
  92 #define IEEE80211_STYPE_CFPOLL                  0x0060
  93 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  94 #define IEEE80211_STYPE_QOS_DATA                0x0080
  95 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  96 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  97 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  98 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  99 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 100 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 101 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 102
 103 /* extension, added by 802.11ad */
 104 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 105
 106 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 107 #define IEEE80211_CTL_EXT_POLL          0x2000
 108 #define IEEE80211_CTL_EXT_SPR           0x3000
 109 #define IEEE80211_CTL_EXT_GRANT 0x4000
 110 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 111 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 112 #define IEEE80211_CTL_EXT_SSW           0x8000
 113 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 114 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 115
 116
 117 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 118 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 119 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 120
 121 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 122 {
 123         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 124 }
 125
 126 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 127 {
 128         return (sn1 + sn2) & IEEE80211_SN_MASK;
 129 }
 130
 131 static inline u16 ieee80211_sn_inc(u16 sn)
 132 {
 133         return ieee80211_sn_add(sn, 1);
 134 }
 135
 136 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 137 {
 138         return (sn1 - sn2) & IEEE80211_SN_MASK;
 139 }
 140
 141 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 142 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 143
 144 /* miscellaneous IEEE 802.11 constants */
 145 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 146 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 147 #define IEEE80211_MAX_AID               2007
 148 #define IEEE80211_MAX_TIM_LEN           251
 149 #define IEEE80211_MAX_MESH_PEERINGS     63
 150 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 151    6.2.1.1.2.
 152
 153    802.11e clarifies the figure in section 7.1.2. The frame body is
 154    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 155 #define IEEE80211_MAX_DATA_LEN          2304
 156 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 157 #define IEEE80211_MAX_FRAME_LEN         2352
 158
 159 #define IEEE80211_MAX_SSID_LEN          32
 160
 161 #define IEEE80211_MAX_MESH_ID_LEN       32
 162
 163 #define IEEE80211_NUM_TIDS              16
 164
 165 #define IEEE80211_QOS_CTL_LEN           2
 166 /* 1d tag mask */
 167 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 168 /* TID mask */
 169 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 170 /* EOSP */
 171 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 172 /* ACK policy */
 173 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 174 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 175 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 176 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 177 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 178 /* A-MSDU 802.11n */
 179 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 180 /* Mesh Control 802.11s */
 181 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 182
 183 /* Mesh Power Save Level */
 184 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 185 /* Mesh Receiver Service Period Initiated */
 186 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 187
 188 /* U-APSD queue for WMM IEs sent by AP */
 189 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 190 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 191
 192 /* U-APSD queues for WMM IEs sent by STA */
 193 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 194 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 195 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 196 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 197 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 198
 199 /* U-APSD max SP length for WMM IEs sent by STA */
 200 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 201 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 202 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 203 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 204 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 205 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 206
 207 #define IEEE80211_HT_CTL_LEN            4
 208
 209 struct ieee80211_hdr {
 210         __le16 frame_control;
 211         __le16 duration_id;
 212         u8 addr1[6];
 213         u8 addr2[6];
 214         u8 addr3[6];
 215         __le16 seq_ctrl;
 216         u8 addr4[6];
 217 } __packed __aligned(2);
 218
 219 struct ieee80211_hdr_3addr {
 220         __le16 frame_control;
 221         __le16 duration_id;
 222         u8 addr1[6];
 223         u8 addr2[6];
 224         u8 addr3[6];
 225         __le16 seq_ctrl;
 226 } __packed __aligned(2);
 227
 228 struct ieee80211_qos_hdr {
 229         __le16 frame_control;
 230         __le16 duration_id;
 231         u8 addr1[6];
 232         u8 addr2[6];
 233         u8 addr3[6];
 234         __le16 seq_ctrl;
 235         __le16 qos_ctrl;
 236 } __packed __aligned(2);
 237
 238 /**
 239  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 240  * @fc: frame control bytes in little-endian byteorder
 241  */
 242 static inline int ieee80211_has_tods(__le16 fc)
 243 {
 244         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 245 }
 246
 247 /**
 248  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 249  * @fc: frame control bytes in little-endian byteorder
 250  */
 251 static inline int ieee80211_has_fromds(__le16 fc)
 252 {
 253         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 254 }
 255
 256 /**
 257  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 258  * @fc: frame control bytes in little-endian byteorder
 259  */
 260 static inline int ieee80211_has_a4(__le16 fc)
 261 {
 262         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 263         return (fc & tmp) == tmp;
 264 }
 265
 266 /**
 267  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 268  * @fc: frame control bytes in little-endian byteorder
 269  */
 270 static inline int ieee80211_has_morefrags(__le16 fc)
 271 {
 272         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 273 }
 274
 275 /**
 276  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 277  * @fc: frame control bytes in little-endian byteorder
 278  */
 279 static inline int ieee80211_has_retry(__le16 fc)
 280 {
 281         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 282 }
 283
 284 /**
 285  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 286  * @fc: frame control bytes in little-endian byteorder
 287  */
 288 static inline int ieee80211_has_pm(__le16 fc)
 289 {
 290         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 291 }
 292
 293 /**
 294  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 295  * @fc: frame control bytes in little-endian byteorder
 296  */
 297 static inline int ieee80211_has_moredata(__le16 fc)
 298 {
 299         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 300 }
 301
 302 /**
 303  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 304  * @fc: frame control bytes in little-endian byteorder
 305  */
 306 static inline int ieee80211_has_protected(__le16 fc)
 307 {
 308         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 309 }
 310
 311 /**
 312  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 313  * @fc: frame control bytes in little-endian byteorder
 314  */
 315 static inline int ieee80211_has_order(__le16 fc)
 316 {
 317         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 318 }
 319
 320 /**
 321  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 322  * @fc: frame control bytes in little-endian byteorder
 323  */
 324 static inline int ieee80211_is_mgmt(__le16 fc)
 325 {
 326         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 327                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 328 }
 329
 330 /**
 331  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 332  * @fc: frame control bytes in little-endian byteorder
 333  */
 334 static inline int ieee80211_is_ctl(__le16 fc)
 335 {
 336         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 337                cpu_to_le16(IEEE80211_FTYPE_CTL);
 338 }
 339
 340 /**
 341  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 342  * @fc: frame control bytes in little-endian byteorder
 343  */
 344 static inline int ieee80211_is_data(__le16 fc)
 345 {
 346         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 347                cpu_to_le16(IEEE80211_FTYPE_DATA);
 348 }
 349
 350 /**
 351  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 352  * @fc: frame control bytes in little-endian byteorder
 353  */
 354 static inline int ieee80211_is_data_qos(__le16 fc)
 355 {
 356         /*
 357          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 358          * to check the one bit
 359          */
 360         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 361                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 362 }
 363
 364 /**
 365  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 366  * @fc: frame control bytes in little-endian byteorder
 367  */
 368 static inline int ieee80211_is_data_present(__le16 fc)
 369 {
 370         /*
 371          * mask with 0x40 and test that that bit is clear to only return true
 372          * for the data-containing substypes.
 373          */
 374         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 375                cpu_to_le16(IEEE80211_FTYPE_DATA);
 376 }
 377
 378 /**
 379  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 380  * @fc: frame control bytes in little-endian byteorder
 381  */
 382 static inline int ieee80211_is_assoc_req(__le16 fc)
 383 {
 384         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 385                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 386 }
 387
 388 /**
 389  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 390  * @fc: frame control bytes in little-endian byteorder
 391  */
 392 static inline int ieee80211_is_assoc_resp(__le16 fc)
 393 {
 394         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 395                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 396 }
 397
 398 /**
 399  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 400  * @fc: frame control bytes in little-endian byteorder
 401  */
 402 static inline int ieee80211_is_reassoc_req(__le16 fc)
 403 {
 404         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 405                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 406 }
 407
 408 /**
 409  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 410  * @fc: frame control bytes in little-endian byteorder
 411  */
 412 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 413 {
 414         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 415                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 416 }
 417
 418 /**
 419  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 420  * @fc: frame control bytes in little-endian byteorder
 421  */
 422 static inline int ieee80211_is_probe_req(__le16 fc)
 423 {
 424         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 425                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 426 }
 427
 428 /**
 429  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 430  * @fc: frame control bytes in little-endian byteorder
 431  */
 432 static inline int ieee80211_is_probe_resp(__le16 fc)
 433 {
 434         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 435                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 436 }
 437
 438 /**
 439  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 440  * @fc: frame control bytes in little-endian byteorder
 441  */
 442 static inline int ieee80211_is_beacon(__le16 fc)
 443 {
 444         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 445                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 446 }
 447
 448 /**
 449  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 450  * @fc: frame control bytes in little-endian byteorder
 451  */
 452 static inline int ieee80211_is_atim(__le16 fc)
 453 {
 454         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 455                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 456 }
 457
 458 /**
 459  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 460  * @fc: frame control bytes in little-endian byteorder
 461  */
 462 static inline int ieee80211_is_disassoc(__le16 fc)
 463 {
 464         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 465                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 466 }
 467
 468 /**
 469  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 470  * @fc: frame control bytes in little-endian byteorder
 471  */
 472 static inline int ieee80211_is_auth(__le16 fc)
 473 {
 474         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 475                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 476 }
 477
 478 /**
 479  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 480  * @fc: frame control bytes in little-endian byteorder
 481  */
 482 static inline int ieee80211_is_deauth(__le16 fc)
 483 {
 484         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 485                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 486 }
 487
 488 /**
 489  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 490  * @fc: frame control bytes in little-endian byteorder
 491  */
 492 static inline int ieee80211_is_action(__le16 fc)
 493 {
 494         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 495                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 496 }
 497
 498 /**
 499  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 500  * @fc: frame control bytes in little-endian byteorder
 501  */
 502 static inline int ieee80211_is_back_req(__le16 fc)
 503 {
 504         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 505                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 506 }
 507
 508 /**
 509  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 510  * @fc: frame control bytes in little-endian byteorder
 511  */
 512 static inline int ieee80211_is_back(__le16 fc)
 513 {
 514         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 515                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 516 }
 517
 518 /**
 519  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 520  * @fc: frame control bytes in little-endian byteorder
 521  */
 522 static inline int ieee80211_is_pspoll(__le16 fc)
 523 {
 524         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 525                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 526 }
 527
 528 /**
 529  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 530  * @fc: frame control bytes in little-endian byteorder
 531  */
 532 static inline int ieee80211_is_rts(__le16 fc)
 533 {
 534         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 535                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 536 }
 537
 538 /**
 539  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 540  * @fc: frame control bytes in little-endian byteorder
 541  */
 542 static inline int ieee80211_is_cts(__le16 fc)
 543 {
 544         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 545                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 546 }
 547
 548 /**
 549  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 550  * @fc: frame control bytes in little-endian byteorder
 551  */
 552 static inline int ieee80211_is_ack(__le16 fc)
 553 {
 554         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 555                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 556 }
 557
 558 /**
 559  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 560  * @fc: frame control bytes in little-endian byteorder
 561  */
 562 static inline int ieee80211_is_cfend(__le16 fc)
 563 {
 564         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 565                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 566 }
 567
 568 /**
 569  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 570  * @fc: frame control bytes in little-endian byteorder
 571  */
 572 static inline int ieee80211_is_cfendack(__le16 fc)
 573 {
 574         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 575                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 576 }
 577
 578 /**
 579  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 580  * @fc: frame control bytes in little-endian byteorder
 581  */
 582 static inline int ieee80211_is_nullfunc(__le16 fc)
 583 {
 584         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 585                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 586 }
 587
 588 /**
 589  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 590  * @fc: frame control bytes in little-endian byteorder
 591  */
 592 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 593 {
 594         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 595                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 596 }
 597
 598 /**
 599  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 600  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 601  */
 602 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 603 {
 604         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 605 }
 606
 607 struct ieee80211s_hdr {
 608         u8 flags;
 609         u8 ttl;
 610         __le32 seqnum;
 611         u8 eaddr1[6];
 612         u8 eaddr2[6];
 613 } __packed __aligned(2);
 614
 615 /* Mesh flags */
 616 #define MESH_FLAGS_AE_A4        0x1
 617 #define MESH_FLAGS_AE_A5_A6     0x2
 618 #define MESH_FLAGS_AE           0x3
 619 #define MESH_FLAGS_PS_DEEP      0x4
 620
 621 /**
 622  * enum ieee80211_preq_flags - mesh PREQ element flags
 623  *
 624  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 625  */
 626 enum ieee80211_preq_flags {
 627         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 628 };
 629
 630 /**
 631  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 632  *
 633  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 634  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 635  */
 636 enum ieee80211_preq_target_flags {
 637         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 638         IEEE80211_PREQ_USN_FLAG = 1<<2,
 639 };
 640
 641 /**
 642  * struct ieee80211_quiet_ie
 643  *
 644  * This structure refers to "Quiet information element"
 645  */
 646 struct ieee80211_quiet_ie {
 647         u8 count;
 648         u8 period;
 649         __le16 duration;
 650         __le16 offset;
 651 } __packed;
 652
 653 /**
 654  * struct ieee80211_msrment_ie
 655  *
 656  * This structure refers to "Measurement Request/Report information element"
 657  */
 658 struct ieee80211_msrment_ie {
 659         u8 token;
 660         u8 mode;
 661         u8 type;
 662         u8 request[0];
 663 } __packed;
 664
 665 /**
 666  * struct ieee80211_channel_sw_ie
 667  *
 668  * This structure refers to "Channel Switch Announcement information element"
 669  */
 670 struct ieee80211_channel_sw_ie {
 671         u8 mode;
 672         u8 new_ch_num;
 673         u8 count;
 674 } __packed;
 675
 676 /**
 677  * struct ieee80211_ext_chansw_ie
 678  *
 679  * This structure represents the "Extended Channel Switch Announcement element"
 680  */
 681 struct ieee80211_ext_chansw_ie {
 682         u8 mode;
 683         u8 new_operating_class;
 684         u8 new_ch_num;
 685         u8 count;
 686 } __packed;
 687
 688 /**
 689  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 690  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 691  *      values here
 692  * This structure represents the "Secondary Channel Offset element"
 693  */
 694 struct ieee80211_sec_chan_offs_ie {
 695         u8 sec_chan_offs;
 696 } __packed;
 697
 698 /**
 699  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 700  */
 701 struct ieee80211_wide_bw_chansw_ie {
 702         u8 new_channel_width;
 703         u8 new_center_freq_seg0, new_center_freq_seg1;
 704 } __packed;
 705
 706 /**
 707  * struct ieee80211_tim
 708  *
 709  * This structure refers to "Traffic Indication Map information element"
 710  */
 711 struct ieee80211_tim_ie {
 712         u8 dtim_count;
 713         u8 dtim_period;
 714         u8 bitmap_ctrl;
 715         /* variable size: 1 - 251 bytes */
 716         u8 virtual_map[1];
 717 } __packed;
 718
 719 /**
 720  * struct ieee80211_meshconf_ie
 721  *
 722  * This structure refers to "Mesh Configuration information element"
 723  */
 724 struct ieee80211_meshconf_ie {
 725         u8 meshconf_psel;
 726         u8 meshconf_pmetric;
 727         u8 meshconf_congest;
 728         u8 meshconf_synch;
 729         u8 meshconf_auth;
 730         u8 meshconf_form;
 731         u8 meshconf_cap;
 732 } __packed;
 733
 734 /**
 735  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 736  *
 737  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 738  *      additional mesh peerings with other mesh STAs
 739  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 740  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 741  *      is ongoing
 742  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 743  *      neighbors in deep sleep mode
 744  */
 745 enum mesh_config_capab_flags {
 746         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 747         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 748         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 749         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 750 };
 751
 752 /**
 753  * struct ieee80211_rann_ie
 754  *
 755  * This structure refers to "Root Announcement information element"
 756  */
 757 struct ieee80211_rann_ie {
 758         u8 rann_flags;
 759         u8 rann_hopcount;
 760         u8 rann_ttl;
 761         u8 rann_addr[6];
 762         __le32 rann_seq;
 763         __le32 rann_interval;
 764         __le32 rann_metric;
 765 } __packed;
 766
 767 enum ieee80211_rann_flags {
 768         RANN_FLAG_IS_GATE = 1 << 0,
 769 };
 770
 771 enum ieee80211_ht_chanwidth_values {
 772         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 773         IEEE80211_HT_CHANWIDTH_ANY = 1,
 774 };
 775
 776 /**
 777  * enum ieee80211_opmode_bits - VHT operating mode field bits
 778  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 779  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 780  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 781  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 782  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 783  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 784  *      (the NSS value is the value of this field + 1)
 785  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 786  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 787  *      using a beamforming steering matrix
 788  */
 789 enum ieee80211_vht_opmode_bits {
 790         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 791         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 792         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 793         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 794         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 795         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 796         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 797         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 798 };
 799
 800 #define WLAN_SA_QUERY_TR_ID_LEN 2
 801
 802 struct ieee80211_mgmt {
 803         __le16 frame_control;
 804         __le16 duration;
 805         u8 da[6];
 806         u8 sa[6];
 807         u8 bssid[6];
 808         __le16 seq_ctrl;
 809         union {
 810                 struct {
 811                         __le16 auth_alg;
 812                         __le16 auth_transaction;
 813                         __le16 status_code;
 814                         /* possibly followed by Challenge text */
 815                         u8 variable[0];
 816                 } __packed auth;
 817                 struct {
 818                         __le16 reason_code;
 819                 } __packed deauth;
 820                 struct {
 821                         __le16 capab_info;
 822                         __le16 listen_interval;
 823                         /* followed by SSID and Supported rates */
 824                         u8 variable[0];
 825                 } __packed assoc_req;
 826                 struct {
 827                         __le16 capab_info;
 828                         __le16 status_code;
 829                         __le16 aid;
 830                         /* followed by Supported rates */
 831                         u8 variable[0];
 832                 } __packed assoc_resp, reassoc_resp;
 833                 struct {
 834                         __le16 capab_info;
 835                         __le16 listen_interval;
 836                         u8 current_ap[6];
 837                         /* followed by SSID and Supported rates */
 838                         u8 variable[0];
 839                 } __packed reassoc_req;
 840                 struct {
 841                         __le16 reason_code;
 842                 } __packed disassoc;
 843                 struct {
 844                         __le64 timestamp;
 845                         __le16 beacon_int;
 846                         __le16 capab_info;
 847                         /* followed by some of SSID, Supported rates,
 848                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 849                         u8 variable[0];
 850                 } __packed beacon;
 851                 struct {
 852                         /* only variable items: SSID, Supported rates */
 853                         u8 variable[0];
 854                 } __packed probe_req;
 855                 struct {
 856                         __le64 timestamp;
 857                         __le16 beacon_int;
 858                         __le16 capab_info;
 859                         /* followed by some of SSID, Supported rates,
 860                          * FH Params, DS Params, CF Params, IBSS Params */
 861                         u8 variable[0];
 862                 } __packed probe_resp;
 863                 struct {
 864                         u8 category;
 865                         union {
 866                                 struct {
 867                                         u8 action_code;
 868                                         u8 dialog_token;
 869                                         u8 status_code;
 870                                         u8 variable[0];
 871                                 } __packed wme_action;
 872                                 struct{
 873                                         u8 action_code;
 874                                         u8 variable[0];
 875                                 } __packed chan_switch;
 876                                 struct{
 877                                         u8 action_code;
 878                                         struct ieee80211_ext_chansw_ie data;
 879                                         u8 variable[0];
 880                                 } __packed ext_chan_switch;
 881                                 struct{
 882                                         u8 action_code;
 883                                         u8 dialog_token;
 884                                         u8 element_id;
 885                                         u8 length;
 886                                         struct ieee80211_msrment_ie msr_elem;
 887                                 } __packed measurement;
 888                                 struct{
 889                                         u8 action_code;
 890                                         u8 dialog_token;
 891                                         __le16 capab;
 892                                         __le16 timeout;
 893                                         __le16 start_seq_num;
 894                                 } __packed addba_req;
 895                                 struct{
 896                                         u8 action_code;
 897                                         u8 dialog_token;
 898                                         __le16 status;
 899                                         __le16 capab;
 900                                         __le16 timeout;
 901                                 } __packed addba_resp;
 902                                 struct{
 903                                         u8 action_code;
 904                                         __le16 params;
 905                                         __le16 reason_code;
 906                                 } __packed delba;
 907                                 struct {
 908                                         u8 action_code;
 909                                         u8 variable[0];
 910                                 } __packed self_prot;
 911                                 struct{
 912                                         u8 action_code;
 913                                         u8 variable[0];
 914                                 } __packed mesh_action;
 915                                 struct {
 916                                         u8 action;
 917                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 918                                 } __packed sa_query;
 919                                 struct {
 920                                         u8 action;
 921                                         u8 smps_control;
 922                                 } __packed ht_smps;
 923                                 struct {
 924                                         u8 action_code;
 925                                         u8 chanwidth;
 926                                 } __packed ht_notify_cw;
 927                                 struct {
 928                                         u8 action_code;
 929                                         u8 dialog_token;
 930                                         __le16 capability;
 931                                         u8 variable[0];
 932                                 } __packed tdls_discover_resp;
 933                                 struct {
 934                                         u8 action_code;
 935                                         u8 operating_mode;
 936                                 } __packed vht_opmode_notif;
 937                         } u;
 938                 } __packed action;
 939         } u;
 940 } __packed __aligned(2);
 941
 942 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 943 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 944
 945 /* mgmt header + 1 byte category code */
 946 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 947
 948
 949 /* Management MIC information element (IEEE 802.11w) */
 950 struct ieee80211_mmie {
 951         u8 element_id;
 952         u8 length;
 953         __le16 key_id;
 954         u8 sequence_number[6];
 955         u8 mic[8];
 956 } __packed;
 957
 958 struct ieee80211_vendor_ie {
 959         u8 element_id;
 960         u8 len;
 961         u8 oui[3];
 962         u8 oui_type;
 963 } __packed;
 964
 965 /* Control frames */
 966 struct ieee80211_rts {
 967         __le16 frame_control;
 968         __le16 duration;
 969         u8 ra[6];
 970         u8 ta[6];
 971 } __packed __aligned(2);
 972
 973 struct ieee80211_cts {
 974         __le16 frame_control;
 975         __le16 duration;
 976         u8 ra[6];
 977 } __packed __aligned(2);
 978
 979 struct ieee80211_pspoll {
 980         __le16 frame_control;
 981         __le16 aid;
 982         u8 bssid[6];
 983         u8 ta[6];
 984 } __packed __aligned(2);
 985
 986 /* TDLS */
 987
 988 /* Link-id information element */
 989 struct ieee80211_tdls_lnkie {
 990         u8 ie_type; /* Link Identifier IE */
 991         u8 ie_len;
 992         u8 bssid[6];
 993         u8 init_sta[6];
 994         u8 resp_sta[6];
 995 } __packed;
 996
 997 struct ieee80211_tdls_data {
 998         u8 da[6];
 999         u8 sa[6];
1000         __be16 ether_type;
1001         u8 payload_type;
1002         u8 category;
1003         u8 action_code;
1004         union {
1005                 struct {
1006                         u8 dialog_token;
1007                         __le16 capability;
1008                         u8 variable[0];
1009                 } __packed setup_req;
1010                 struct {
1011                         __le16 status_code;
1012                         u8 dialog_token;
1013                         __le16 capability;
1014                         u8 variable[0];
1015                 } __packed setup_resp;
1016                 struct {
1017                         __le16 status_code;
1018                         u8 dialog_token;
1019                         u8 variable[0];
1020                 } __packed setup_cfm;
1021                 struct {
1022                         __le16 reason_code;
1023                         u8 variable[0];
1024                 } __packed teardown;
1025                 struct {
1026                         u8 dialog_token;
1027                         u8 variable[0];
1028                 } __packed discover_req;
1029         } u;
1030 } __packed;
1031
1032 /*
1033  * Peer-to-Peer IE attribute related definitions.
1034  */
1035 /**
1036  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1037  */
1038 enum ieee80211_p2p_attr_id {
1039         IEEE80211_P2P_ATTR_STATUS = 0,
1040         IEEE80211_P2P_ATTR_MINOR_REASON,
1041         IEEE80211_P2P_ATTR_CAPABILITY,
1042         IEEE80211_P2P_ATTR_DEVICE_ID,
1043         IEEE80211_P2P_ATTR_GO_INTENT,
1044         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1045         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1046         IEEE80211_P2P_ATTR_GROUP_BSSID,
1047         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1048         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1049         IEEE80211_P2P_ATTR_MANAGABILITY,
1050         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1051         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1052         IEEE80211_P2P_ATTR_DEVICE_INFO,
1053         IEEE80211_P2P_ATTR_GROUP_INFO,
1054         IEEE80211_P2P_ATTR_GROUP_ID,
1055         IEEE80211_P2P_ATTR_INTERFACE,
1056         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1057         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1058         /* 19 - 220: Reserved */
1059         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1060
1061         IEEE80211_P2P_ATTR_MAX
1062 };
1063
1064 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1065 /* Typical max value used here */
1066 #define IEEE80211_P2P_NOA_DESC_MAX      4
1067
1068 struct ieee80211_p2p_noa_desc {
1069         u8 count;
1070         __le32 duration;
1071         __le32 interval;
1072         __le32 start_time;
1073 } __packed;
1074
1075 struct ieee80211_p2p_noa_attr {
1076         u8 index;
1077         u8 oppps_ctwindow;
1078         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1079 } __packed;
1080
1081 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1082 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1083
1084 /**
1085  * struct ieee80211_bar - HT Block Ack Request
1086  *
1087  * This structure refers to "HT BlockAckReq" as
1088  * described in 802.11n draft section 7.2.1.7.1
1089  */
1090 struct ieee80211_bar {
1091         __le16 frame_control;
1092         __le16 duration;
1093         __u8 ra[6];
1094         __u8 ta[6];
1095         __le16 control;
1096         __le16 start_seq_num;
1097 } __packed;
1098
1099 /* 802.11 BAR control masks */
1100 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1101 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1102 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1103 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1104 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1105
1106 #define IEEE80211_HT_MCS_MASK_LEN               10
1107
1108 /**
1109  * struct ieee80211_mcs_info - MCS information
1110  * @rx_mask: RX mask
1111  * @rx_highest: highest supported RX rate. If set represents
1112  *      the highest supported RX data rate in units of 1 Mbps.
1113  *      If this field is 0 this value should not be used to
1114  *      consider the highest RX data rate supported.
1115  * @tx_params: TX parameters
1116  */
1117 struct ieee80211_mcs_info {
1118         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1119         __le16 rx_highest;
1120         u8 tx_params;
1121         u8 reserved[3];
1122 } __packed;
1123
1124 /* 802.11n HT capability MSC set */
1125 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1126 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1127 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1128 /* value 0 == 1 stream etc */
1129 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1130 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1131 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1132 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1133
1134 /*
1135  * 802.11n D5.0 20.3.5 / 20.6 says:
1136  * - indices 0 to 7 and 32 are single spatial stream
1137  * - 8 to 31 are multiple spatial streams using equal modulation
1138  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1139  * - remainder are multiple spatial streams using unequal modulation
1140  */
1141 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1142 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1143         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1144
1145 /**
1146  * struct ieee80211_ht_cap - HT capabilities
1147  *
1148  * This structure is the "HT capabilities element" as
1149  * described in 802.11n D5.0 7.3.2.57
1150  */
1151 struct ieee80211_ht_cap {
1152         __le16 cap_info;
1153         u8 ampdu_params_info;
1154
1155         /* 16 bytes MCS information */
1156         struct ieee80211_mcs_info mcs;
1157
1158         __le16 extended_ht_cap_info;
1159         __le32 tx_BF_cap_info;
1160         u8 antenna_selection_info;
1161 } __packed;
1162
1163 /* 802.11n HT capabilities masks (for cap_info) */
1164 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1165 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1166 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1167 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1168 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1169 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1170 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1171 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1172 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1173 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1174 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1175 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1176 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1177 #define IEEE80211_HT_CAP_RESERVED               0x2000
1178 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1179 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1180
1181 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1182 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1183 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1184 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1185 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1186 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1187 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1188 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1189
1190 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1191 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1192 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1193 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1194
1195 /*
1196  * Maximum length of AMPDU that the STA can receive.
1197  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1198  */
1199 enum ieee80211_max_ampdu_length_exp {
1200         IEEE80211_HT_MAX_AMPDU_8K = 0,
1201         IEEE80211_HT_MAX_AMPDU_16K = 1,
1202         IEEE80211_HT_MAX_AMPDU_32K = 2,
1203         IEEE80211_HT_MAX_AMPDU_64K = 3
1204 };
1205
1206 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1207
1208 /* Minimum MPDU start spacing */
1209 enum ieee80211_min_mpdu_spacing {
1210         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1211         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1212         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1213         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1214         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1215         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1216         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1217         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1218 };
1219
1220 /**
1221  * struct ieee80211_ht_operation - HT operation IE
1222  *
1223  * This structure is the "HT operation element" as
1224  * described in 802.11n-2009 7.3.2.57
1225  */
1226 struct ieee80211_ht_operation {
1227         u8 primary_chan;
1228         u8 ht_param;
1229         __le16 operation_mode;
1230         __le16 stbc_param;
1231         u8 basic_set[16];
1232 } __packed;
1233
1234 /* for ht_param */
1235 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1236 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1237 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1238 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1239 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1240 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1241
1242 /* for operation_mode */
1243 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1244 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1245 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1246 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1247 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1248 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1249 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1250
1251 /* for stbc_param */
1252 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1253 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1254 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1255 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1256 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1257 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1258
1259
1260 /* block-ack parameters */
1261 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1262 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1263 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1264 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1265 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1266
1267 /*
1268  * A-PMDU buffer sizes
1269  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1270  */
1271 #define IEEE80211_MIN_AMPDU_BUF 0x8
1272 #define IEEE80211_MAX_AMPDU_BUF 0x40
1273
1274
1275 /* Spatial Multiplexing Power Save Modes (for capability) */
1276 #define WLAN_HT_CAP_SM_PS_STATIC        0
1277 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1278 #define WLAN_HT_CAP_SM_PS_INVALID       2
1279 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1280
1281 /* for SM power control field lower two bits */
1282 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1283 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1284 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1285
1286 /**
1287  * struct ieee80211_vht_mcs_info - VHT MCS information
1288  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1289  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1290  *      STA can receive. Rate expressed in units of 1 Mbps.
1291  *      If this field is 0 this value should not be used to
1292  *      consider the highest RX data rate supported.
1293  *      The top 3 bits of this field are reserved.
1294  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1295  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1296  *      STA can transmit. Rate expressed in units of 1 Mbps.
1297  *      If this field is 0 this value should not be used to
1298  *      consider the highest TX data rate supported.
1299  *      The top 3 bits of this field are reserved.
1300  */
1301 struct ieee80211_vht_mcs_info {
1302         __le16 rx_mcs_map;
1303         __le16 rx_highest;
1304         __le16 tx_mcs_map;
1305         __le16 tx_highest;
1306 } __packed;
1307
1308 /**
1309  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1310  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1311  *      number of streams
1312  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1313  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1314  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1315  *
1316  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1317  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1318  * both split into 8 subfields by number of streams. These values indicate
1319  * which MCSes are supported for the number of streams the value appears
1320  * for.
1321  */
1322 enum ieee80211_vht_mcs_support {
1323         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1324         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1325         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1326         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1327 };
1328
1329 /**
1330  * struct ieee80211_vht_cap - VHT capabilities
1331  *
1332  * This structure is the "VHT capabilities element" as
1333  * described in 802.11ac D3.0 8.4.2.160
1334  * @vht_cap_info: VHT capability info
1335  * @supp_mcs: VHT MCS supported rates
1336  */
1337 struct ieee80211_vht_cap {
1338         __le32 vht_cap_info;
1339         struct ieee80211_vht_mcs_info supp_mcs;
1340 } __packed;
1341
1342 /**
1343  * enum ieee80211_vht_chanwidth - VHT channel width
1344  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1345  *      determine the channel width (20 or 40 MHz)
1346  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1347  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1348  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1349  */
1350 enum ieee80211_vht_chanwidth {
1351         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1352         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1353         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1354         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1355 };
1356
1357 /**
1358  * struct ieee80211_vht_operation - VHT operation IE
1359  *
1360  * This structure is the "VHT operation element" as
1361  * described in 802.11ac D3.0 8.4.2.161
1362  * @chan_width: Operating channel width
1363  * @center_freq_seg1_idx: center freq segment 1 index
1364  * @center_freq_seg2_idx: center freq segment 2 index
1365  * @basic_mcs_set: VHT Basic MCS rate set
1366  */
1367 struct ieee80211_vht_operation {
1368         u8 chan_width;
1369         u8 center_freq_seg1_idx;
1370         u8 center_freq_seg2_idx;
1371         __le16 basic_mcs_set;
1372 } __packed;
1373
1374
1375 /* 802.11ac VHT Capabilities */
1376 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1377 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1378 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1379 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1380 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1381 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1382 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1383 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1384 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1385 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1386 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1387 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1388 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1389 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1390 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1391 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1392 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1393 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX               0x00006000
1394 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX               0x00030000
1395 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1396 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1397 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1398 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1399 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1400 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1401                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1402 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1403 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1404 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1405 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1406
1407 /* Authentication algorithms */
1408 #define WLAN_AUTH_OPEN 0
1409 #define WLAN_AUTH_SHARED_KEY 1
1410 #define WLAN_AUTH_FT 2
1411 #define WLAN_AUTH_SAE 3
1412 #define WLAN_AUTH_LEAP 128
1413
1414 #define WLAN_AUTH_CHALLENGE_LEN 128
1415
1416 #define WLAN_CAPABILITY_ESS             (1<<0)
1417 #define WLAN_CAPABILITY_IBSS            (1<<1)
1418
1419 /*
1420  * A mesh STA sets the ESS and IBSS capability bits to zero.
1421  * however, this holds true for p2p probe responses (in the p2p_find
1422  * phase) as well.
1423  */
1424 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1425         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1426
1427 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1428 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1429 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1430 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1431 #define WLAN_CAPABILITY_PBCC            (1<<6)
1432 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1433
1434 /* 802.11h */
1435 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1436 #define WLAN_CAPABILITY_QOS             (1<<9)
1437 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1438 #define WLAN_CAPABILITY_APSD            (1<<11)
1439 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1440 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1441 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1442 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1443
1444 /* DMG (60gHz) 802.11ad */
1445 /* type - bits 0..1 */
1446 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1447 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1448 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1449 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1450
1451 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1452 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1453 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1454 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1455
1456 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1457 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1458
1459 /* measurement */
1460 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1461 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1462 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1463
1464 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1465 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1466 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1467
1468 /* 802.11g ERP information element */
1469 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1470 #define WLAN_ERP_USE_PROTECTION (1<<1)
1471 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1472
1473 /* WLAN_ERP_BARKER_PREAMBLE values */
1474 enum {
1475         WLAN_ERP_PREAMBLE_SHORT = 0,
1476         WLAN_ERP_PREAMBLE_LONG = 1,
1477 };
1478
1479 /* Band ID, 802.11ad #8.4.1.45 */
1480 enum {
1481         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1482         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1483         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1484         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1485         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1486         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1487 };
1488
1489 /* Status codes */
1490 enum ieee80211_statuscode {
1491         WLAN_STATUS_SUCCESS = 0,
1492         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1493         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1494         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1495         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1496         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1497         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1498         WLAN_STATUS_CHALLENGE_FAIL = 15,
1499         WLAN_STATUS_AUTH_TIMEOUT = 16,
1500         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1501         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1502         /* 802.11b */
1503         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1504         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1505         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1506         /* 802.11h */
1507         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1508         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1509         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1510         /* 802.11g */
1511         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1512         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1513         /* 802.11w */
1514         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1515         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1516         /* 802.11i */
1517         WLAN_STATUS_INVALID_IE = 40,
1518         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1519         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1520         WLAN_STATUS_INVALID_AKMP = 43,
1521         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1522         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1523         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1524         /* 802.11e */
1525         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1526         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1527         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1528         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1529         WLAN_STATUS_REQUEST_DECLINED = 37,
1530         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1531         WLAN_STATUS_CHANGE_TSPEC = 39,
1532         WLAN_STATUS_WAIT_TS_DELAY = 47,
1533         WLAN_STATUS_NO_DIRECT_LINK = 48,
1534         WLAN_STATUS_STA_NOT_PRESENT = 49,
1535         WLAN_STATUS_STA_NOT_QSTA = 50,
1536         /* 802.11s */
1537         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1538         WLAN_STATUS_FCG_NOT_SUPP = 78,
1539         WLAN_STATUS_STA_NO_TBTT = 78,
1540         /* 802.11ad */
1541         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1542         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1543         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1544         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1545         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1546         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1547         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1548         WLAN_STATUS_REJECT_DSE_BAND = 96,
1549         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1550         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1551 };
1552
1553
1554 /* Reason codes */
1555 enum ieee80211_reasoncode {
1556         WLAN_REASON_UNSPECIFIED = 1,
1557         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1558         WLAN_REASON_DEAUTH_LEAVING = 3,
1559         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1560         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1561         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1562         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1563         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1564         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1565         /* 802.11h */
1566         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1567         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1568         /* 802.11i */
1569         WLAN_REASON_INVALID_IE = 13,
1570         WLAN_REASON_MIC_FAILURE = 14,
1571         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1572         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1573         WLAN_REASON_IE_DIFFERENT = 17,
1574         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1575         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1576         WLAN_REASON_INVALID_AKMP = 20,
1577         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1578         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1579         WLAN_REASON_IEEE8021X_FAILED = 23,
1580         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1581         /* 802.11e */
1582         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1583         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1584         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1585         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1586         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1587         WLAN_REASON_QSTA_NOT_USE = 37,
1588         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1589         WLAN_REASON_QSTA_TIMEOUT = 39,
1590         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1591         /* 802.11s */
1592         WLAN_REASON_MESH_PEER_CANCELED = 52,
1593         WLAN_REASON_MESH_MAX_PEERS = 53,
1594         WLAN_REASON_MESH_CONFIG = 54,
1595         WLAN_REASON_MESH_CLOSE = 55,
1596         WLAN_REASON_MESH_MAX_RETRIES = 56,
1597         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1598         WLAN_REASON_MESH_INVALID_GTK = 58,
1599         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1600         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1601         WLAN_REASON_MESH_PATH_ERROR = 61,
1602         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1603         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1604         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1605         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1606         WLAN_REASON_MESH_CHAN = 66,
1607 };
1608
1609
1610 /* Information Element IDs */
1611 enum ieee80211_eid {
1612         WLAN_EID_SSID = 0,
1613         WLAN_EID_SUPP_RATES = 1,
1614         WLAN_EID_FH_PARAMS = 2,
1615         WLAN_EID_DS_PARAMS = 3,
1616         WLAN_EID_CF_PARAMS = 4,
1617         WLAN_EID_TIM = 5,
1618         WLAN_EID_IBSS_PARAMS = 6,
1619         WLAN_EID_CHALLENGE = 16,
1620
1621         WLAN_EID_COUNTRY = 7,
1622         WLAN_EID_HP_PARAMS = 8,
1623         WLAN_EID_HP_TABLE = 9,
1624         WLAN_EID_REQUEST = 10,
1625
1626         WLAN_EID_QBSS_LOAD = 11,
1627         WLAN_EID_EDCA_PARAM_SET = 12,
1628         WLAN_EID_TSPEC = 13,
1629         WLAN_EID_TCLAS = 14,
1630         WLAN_EID_SCHEDULE = 15,
1631         WLAN_EID_TS_DELAY = 43,
1632         WLAN_EID_TCLAS_PROCESSING = 44,
1633         WLAN_EID_QOS_CAPA = 46,
1634         /* 802.11z */
1635         WLAN_EID_LINK_ID = 101,
1636         /* 802.11s */
1637         WLAN_EID_MESH_CONFIG = 113,
1638         WLAN_EID_MESH_ID = 114,
1639         WLAN_EID_LINK_METRIC_REPORT = 115,
1640         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1641         WLAN_EID_PEER_MGMT = 117,
1642         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1643         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1644         WLAN_EID_BEACON_TIMING = 120,
1645         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1646         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1647         WLAN_EID_MCCAOP_ADVERT = 123,
1648         WLAN_EID_MCCAOP_TEARDOWN = 124,
1649         WLAN_EID_GANN = 125,
1650         WLAN_EID_RANN = 126,
1651         WLAN_EID_PREQ = 130,
1652         WLAN_EID_PREP = 131,
1653         WLAN_EID_PERR = 132,
1654         WLAN_EID_PXU = 137,
1655         WLAN_EID_PXUC = 138,
1656         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1657         WLAN_EID_MIC = 140,
1658
1659         WLAN_EID_PWR_CONSTRAINT = 32,
1660         WLAN_EID_PWR_CAPABILITY = 33,
1661         WLAN_EID_TPC_REQUEST = 34,
1662         WLAN_EID_TPC_REPORT = 35,
1663         WLAN_EID_SUPPORTED_CHANNELS = 36,
1664         WLAN_EID_CHANNEL_SWITCH = 37,
1665         WLAN_EID_MEASURE_REQUEST = 38,
1666         WLAN_EID_MEASURE_REPORT = 39,
1667         WLAN_EID_QUIET = 40,
1668         WLAN_EID_IBSS_DFS = 41,
1669
1670         WLAN_EID_ERP_INFO = 42,
1671         WLAN_EID_EXT_SUPP_RATES = 50,
1672
1673         WLAN_EID_HT_CAPABILITY = 45,
1674         WLAN_EID_HT_OPERATION = 61,
1675         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1676
1677         WLAN_EID_RSN = 48,
1678         WLAN_EID_MMIE = 76,
1679         WLAN_EID_VENDOR_SPECIFIC = 221,
1680         WLAN_EID_QOS_PARAMETER = 222,
1681
1682         WLAN_EID_AP_CHAN_REPORT = 51,
1683         WLAN_EID_NEIGHBOR_REPORT = 52,
1684         WLAN_EID_RCPI = 53,
1685         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1686         WLAN_EID_ANTENNA_INFO = 64,
1687         WLAN_EID_RSNI = 65,
1688         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1689         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1690         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1691         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1692         WLAN_EID_MULTIPLE_BSSID = 71,
1693         WLAN_EID_BSS_COEX_2040 = 72,
1694         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1695         WLAN_EID_EXT_CAPABILITY = 127,
1696
1697         WLAN_EID_MOBILITY_DOMAIN = 54,
1698         WLAN_EID_FAST_BSS_TRANSITION = 55,
1699         WLAN_EID_TIMEOUT_INTERVAL = 56,
1700         WLAN_EID_RIC_DATA = 57,
1701         WLAN_EID_RIC_DESCRIPTOR = 75,
1702
1703         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1704         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1705         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1706
1707         WLAN_EID_VHT_CAPABILITY = 191,
1708         WLAN_EID_VHT_OPERATION = 192,
1709         WLAN_EID_OPMODE_NOTIF = 199,
1710         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1711         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1712
1713         /* 802.11ad */
1714         WLAN_EID_NON_TX_BSSID_CAP =  83,
1715         WLAN_EID_WAKEUP_SCHEDULE = 143,
1716         WLAN_EID_EXT_SCHEDULE = 144,
1717         WLAN_EID_STA_AVAILABILITY = 145,
1718         WLAN_EID_DMG_TSPEC = 146,
1719         WLAN_EID_DMG_AT = 147,
1720         WLAN_EID_DMG_CAP = 148,
1721         WLAN_EID_DMG_OPERATION = 151,
1722         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1723         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1724         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1725         WLAN_EID_AWAKE_WINDOW = 157,
1726         WLAN_EID_MULTI_BAND = 158,
1727         WLAN_EID_ADDBA_EXT = 159,
1728         WLAN_EID_NEXT_PCP_LIST = 160,
1729         WLAN_EID_PCP_HANDOVER = 161,
1730         WLAN_EID_DMG_LINK_MARGIN = 162,
1731         WLAN_EID_SWITCHING_STREAM = 163,
1732         WLAN_EID_SESSION_TRANSITION = 164,
1733         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1734         WLAN_EID_CLUSTER_REPORT = 166,
1735         WLAN_EID_RELAY_CAP = 167,
1736         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1737         WLAN_EID_BEAM_LINK_MAINT = 169,
1738         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1739         WLAN_EID_U_PID = 171,
1740         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1741         WLAN_EID_QUIET_PERIOD_REQ = 175,
1742         WLAN_EID_QUIET_PERIOD_RESP = 177,
1743         WLAN_EID_EPAC_POLICY = 182,
1744         WLAN_EID_CLISTER_TIME_OFF = 183,
1745         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1746 };
1747
1748 /* Action category code */
1749 enum ieee80211_category {
1750         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1751         WLAN_CATEGORY_QOS = 1,
1752         WLAN_CATEGORY_DLS = 2,
1753         WLAN_CATEGORY_BACK = 3,
1754         WLAN_CATEGORY_PUBLIC = 4,
1755         WLAN_CATEGORY_HT = 7,
1756         WLAN_CATEGORY_SA_QUERY = 8,
1757         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1758         WLAN_CATEGORY_TDLS = 12,
1759         WLAN_CATEGORY_MESH_ACTION = 13,
1760         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1761         WLAN_CATEGORY_SELF_PROTECTED = 15,
1762         WLAN_CATEGORY_DMG = 16,
1763         WLAN_CATEGORY_WMM = 17,
1764         WLAN_CATEGORY_FST = 18,
1765         WLAN_CATEGORY_UNPROT_DMG = 20,
1766         WLAN_CATEGORY_VHT = 21,
1767         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1768         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1769 };
1770
1771 /* SPECTRUM_MGMT action code */
1772 enum ieee80211_spectrum_mgmt_actioncode {
1773         WLAN_ACTION_SPCT_MSR_REQ = 0,
1774         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1775         WLAN_ACTION_SPCT_TPC_REQ = 2,
1776         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1777         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1778 };
1779
1780 /* HT action codes */
1781 enum ieee80211_ht_actioncode {
1782         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1783         WLAN_HT_ACTION_SMPS = 1,
1784         WLAN_HT_ACTION_PSMP = 2,
1785         WLAN_HT_ACTION_PCO_PHASE = 3,
1786         WLAN_HT_ACTION_CSI = 4,
1787         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1788         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1789         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1790 };
1791
1792 /* VHT action codes */
1793 enum ieee80211_vht_actioncode {
1794         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1795         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1796         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1797 };
1798
1799 /* Self Protected Action codes */
1800 enum ieee80211_self_protected_actioncode {
1801         WLAN_SP_RESERVED = 0,
1802         WLAN_SP_MESH_PEERING_OPEN = 1,
1803         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1804         WLAN_SP_MESH_PEERING_CLOSE = 3,
1805         WLAN_SP_MGK_INFORM = 4,
1806         WLAN_SP_MGK_ACK = 5,
1807 };
1808
1809 /* Mesh action codes */
1810 enum ieee80211_mesh_actioncode {
1811         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1812         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1813         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1814         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1815         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1816         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1817         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1818         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1819         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1820         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1821         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1822 };
1823
1824 /* Security key length */
1825 enum ieee80211_key_len {
1826         WLAN_KEY_LEN_WEP40 = 5,
1827         WLAN_KEY_LEN_WEP104 = 13,
1828         WLAN_KEY_LEN_CCMP = 16,
1829         WLAN_KEY_LEN_TKIP = 32,
1830         WLAN_KEY_LEN_AES_CMAC = 16,
1831 };
1832
1833 #define IEEE80211_WEP_IV_LEN            4
1834 #define IEEE80211_WEP_ICV_LEN           4
1835 #define IEEE80211_CCMP_HDR_LEN          8
1836 #define IEEE80211_CCMP_MIC_LEN          8
1837 #define IEEE80211_CCMP_PN_LEN           6
1838 #define IEEE80211_TKIP_IV_LEN           8
1839 #define IEEE80211_TKIP_ICV_LEN          4
1840 #define IEEE80211_CMAC_PN_LEN           6
1841
1842 /* Public action codes */
1843 enum ieee80211_pub_actioncode {
1844         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
1845         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1846 };
1847
1848 /* TDLS action codes */
1849 enum ieee80211_tdls_actioncode {
1850         WLAN_TDLS_SETUP_REQUEST = 0,
1851         WLAN_TDLS_SETUP_RESPONSE = 1,
1852         WLAN_TDLS_SETUP_CONFIRM = 2,
1853         WLAN_TDLS_TEARDOWN = 3,
1854         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1855         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1856         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1857         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1858         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1859         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1860         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1861 };
1862
1863 /*
1864  * TDLS capabililites to be enabled in the 5th byte of the
1865  * @WLAN_EID_EXT_CAPABILITY information element
1866  */
1867 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1868 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1869
1870 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1871
1872 /* TDLS specific payload type in the LLC/SNAP header */
1873 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1874
1875 /**
1876  * enum - mesh synchronization method identifier
1877  *
1878  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1879  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1880  *      that will be specified in a vendor specific information element
1881  */
1882 enum {
1883         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1884         IEEE80211_SYNC_METHOD_VENDOR = 255,
1885 };
1886
1887 /**
1888  * enum - mesh path selection protocol identifier
1889  *
1890  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1891  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1892  *      be specified in a vendor specific information element
1893  */
1894 enum {
1895         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1896         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1897 };
1898
1899 /**
1900  * enum - mesh path selection metric identifier
1901  *
1902  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1903  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1904  *      specified in a vendor specific information element
1905  */
1906 enum {
1907         IEEE80211_PATH_METRIC_AIRTIME = 1,
1908         IEEE80211_PATH_METRIC_VENDOR = 255,
1909 };
1910
1911 /**
1912  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1913  *
1914  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1915  *
1916  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1917  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1918  *      this value
1919  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1920  *      the proactive PREQ with proactive PREP subfield set to 0
1921  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1922  *      supports the proactive PREQ with proactive PREP subfield set to 1
1923  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1924  *      the proactive RANN
1925  */
1926 enum ieee80211_root_mode_identifier {
1927         IEEE80211_ROOTMODE_NO_ROOT = 0,
1928         IEEE80211_ROOTMODE_ROOT = 1,
1929         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1930         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1931         IEEE80211_PROACTIVE_RANN = 4,
1932 };
1933
1934 /*
1935  * IEEE 802.11-2007 7.3.2.9 Country information element
1936  *
1937  * Minimum length is 8 octets, ie len must be evenly
1938  * divisible by 2
1939  */
1940
1941 /* Although the spec says 8 I'm seeing 6 in practice */
1942 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1943
1944 /* The Country String field of the element shall be 3 octets in length */
1945 #define IEEE80211_COUNTRY_STRING_LEN    3
1946
1947 /*
1948  * For regulatory extension stuff see IEEE 802.11-2007
1949  * Annex I (page 1141) and Annex J (page 1147). Also
1950  * review 7.3.2.9.
1951  *
1952  * When dot11RegulatoryClassesRequired is true and the
1953  * first_channel/reg_extension_id is >= 201 then the IE
1954  * compromises of the 'ext' struct represented below:
1955  *
1956  *  - Regulatory extension ID - when generating IE this just needs
1957  *    to be monotonically increasing for each triplet passed in
1958  *    the IE
1959  *  - Regulatory class - index into set of rules
1960  *  - Coverage class - index into air propagation time (Table 7-27),
1961  *    in microseconds, you can compute the air propagation time from
1962  *    the index by multiplying by 3, so index 10 yields a propagation
1963  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1964  *    yet. A value of 0 inicates air propagation of <= 1 us.
1965  *
1966  *  See also Table I.2 for Emission limit sets and table
1967  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1968  *  a reg_class to an emission limit set and behavior limit set.
1969  */
1970 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1971
1972 /*
1973  *  Channels numbers in the IE must be monotonically increasing
1974  *  if dot11RegulatoryClassesRequired is not true.
1975  *
1976  *  If dot11RegulatoryClassesRequired is true consecutive
1977  *  subband triplets following a regulatory triplet shall
1978  *  have monotonically increasing first_channel number fields.
1979  *
1980  *  Channel numbers shall not overlap.
1981  *
1982  *  Note that max_power is signed.
1983  */
1984 struct ieee80211_country_ie_triplet {
1985         union {
1986                 struct {
1987                         u8 first_channel;
1988                         u8 num_channels;
1989                         s8 max_power;
1990                 } __packed chans;
1991                 struct {
1992                         u8 reg_extension_id;
1993                         u8 reg_class;
1994                         u8 coverage_class;
1995                 } __packed ext;
1996         };
1997 } __packed;
1998
1999 enum ieee80211_timeout_interval_type {
2000         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2001         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2002         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2003 };
2004
2005 /**
2006  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2007  * @type: type, see &enum ieee80211_timeout_interval_type
2008  * @value: timeout interval value
2009  */
2010 struct ieee80211_timeout_interval_ie {
2011         u8 type;
2012         __le32 value;
2013 } __packed;
2014
2015 /* BACK action code */
2016 enum ieee80211_back_actioncode {
2017         WLAN_ACTION_ADDBA_REQ = 0,
2018         WLAN_ACTION_ADDBA_RESP = 1,
2019         WLAN_ACTION_DELBA = 2,
2020 };
2021
2022 /* BACK (block-ack) parties */
2023 enum ieee80211_back_parties {
2024         WLAN_BACK_RECIPIENT = 0,
2025         WLAN_BACK_INITIATOR = 1,
2026 };
2027
2028 /* SA Query action */
2029 enum ieee80211_sa_query_action {
2030         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2031         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2032 };
2033
2034
2035 /* cipher suite selectors */
2036 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2037 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2038 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2039 /* reserved:                            0x000FAC03 */
2040 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2041 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2042 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2043 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2044
2045 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2046
2047 /* AKM suite selectors */
2048 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2049 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2050 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
2051 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
2052 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
2053 #define WLAN_AKM_SUITE_SAE              0x000FAC08
2054 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2055
2056 #define WLAN_MAX_KEY_LEN                32
2057
2058 #define WLAN_PMKID_LEN                  16
2059
2060 #define WLAN_OUI_WFA                    0x506f9a
2061 #define WLAN_OUI_TYPE_WFA_P2P           9
2062 #define WLAN_OUI_MICROSOFT              0x0050f2
2063 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2064 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2065 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2066
2067 /*
2068  * WMM/802.11e Tspec Element
2069  */
2070 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2071 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2072
2073 enum ieee80211_tspec_status_code {
2074         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2075         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2076 };
2077
2078 struct ieee80211_tspec_ie {
2079         u8 element_id;
2080         u8 len;
2081         u8 oui[3];
2082         u8 oui_type;
2083         u8 oui_subtype;
2084         u8 version;
2085         __le16 tsinfo;
2086         u8 tsinfo_resvd;
2087         __le16 nominal_msdu;
2088         __le16 max_msdu;
2089         __le32 min_service_int;
2090         __le32 max_service_int;
2091         __le32 inactivity_int;
2092         __le32 suspension_int;
2093         __le32 service_start_time;
2094         __le32 min_data_rate;
2095         __le32 mean_data_rate;
2096         __le32 peak_data_rate;
2097         __le32 max_burst_size;
2098         __le32 delay_bound;
2099         __le32 min_phy_rate;
2100         __le16 sba;
2101         __le16 medium_time;
2102 } __packed;
2103
2104 /**
2105  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2106  * @hdr: the frame
2107  *
2108  * The qos ctrl bytes come after the frame_control, duration, seq_num
2109  * and 3 or 4 addresses of length ETH_ALEN.
2110  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2111  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2112  */
2113 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2114 {
2115         if (ieee80211_has_a4(hdr->frame_control))
2116                 return (u8 *)hdr + 30;
2117         else
2118                 return (u8 *)hdr + 24;
2119 }
2120
2121 /**
2122  * ieee80211_get_SA - get pointer to SA
2123  * @hdr: the frame
2124  *
2125  * Given an 802.11 frame, this function returns the offset
2126  * to the source address (SA). It does not verify that the
2127  * header is long enough to contain the address, and the
2128  * header must be long enough to contain the frame control
2129  * field.
2130  */
2131 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2132 {
2133         if (ieee80211_has_a4(hdr->frame_control))
2134                 return hdr->addr4;
2135         if (ieee80211_has_fromds(hdr->frame_control))
2136                 return hdr->addr3;
2137         return hdr->addr2;
2138 }
2139
2140 /**
2141  * ieee80211_get_DA - get pointer to DA
2142  * @hdr: the frame
2143  *
2144  * Given an 802.11 frame, this function returns the offset
2145  * to the destination address (DA). It does not verify that
2146  * the header is long enough to contain the address, and the
2147  * header must be long enough to contain the frame control
2148  * field.
2149  */
2150 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2151 {
2152         if (ieee80211_has_tods(hdr->frame_control))
2153                 return hdr->addr3;
2154         else
2155                 return hdr->addr1;
2156 }
2157
2158 /**
2159  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2160  * @hdr: the frame (buffer must include at least the first octet of payload)
2161  */
2162 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2163 {
2164         if (ieee80211_is_disassoc(hdr->frame_control) ||
2165             ieee80211_is_deauth(hdr->frame_control))
2166                 return true;
2167
2168         if (ieee80211_is_action(hdr->frame_control)) {
2169                 u8 *category;
2170
2171                 /*
2172                  * Action frames, excluding Public Action frames, are Robust
2173                  * Management Frames. However, if we are looking at a Protected
2174                  * frame, skip the check since the data may be encrypted and
2175                  * the frame has already been found to be a Robust Management
2176                  * Frame (by the other end).
2177                  */
2178                 if (ieee80211_has_protected(hdr->frame_control))
2179                         return true;
2180                 category = ((u8 *) hdr) + 24;
2181                 return *category != WLAN_CATEGORY_PUBLIC &&
2182                         *category != WLAN_CATEGORY_HT &&
2183                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2184                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2185         }
2186
2187         return false;
2188 }
2189
2190 /**
2191  * ieee80211_is_public_action - check if frame is a public action frame
2192  * @hdr: the frame
2193  * @len: length of the frame
2194  */
2195 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2196                                               size_t len)
2197 {
2198         struct ieee80211_mgmt *mgmt = (void *)hdr;
2199
2200         if (len < IEEE80211_MIN_ACTION_SIZE)
2201                 return false;
2202         if (!ieee80211_is_action(hdr->frame_control))
2203                 return false;
2204         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2205 }
2206
2207 /**
2208  * ieee80211_dsss_chan_to_freq - get channel center frequency
2209  * @channel: the DSSS channel
2210  *
2211  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2212  * Ref IEEE 802.11-2007 section 15.6
2213  */
2214 static inline int ieee80211_dsss_chan_to_freq(int channel)
2215 {
2216         if ((channel > 0) && (channel < 14))
2217                 return 2407 + (channel * 5);
2218         else if (channel == 14)
2219                 return 2484;
2220         else
2221                 return -1;
2222 }
2223
2224 /**
2225  * ieee80211_freq_to_dsss_chan - get channel
2226  * @freq: the frequency
2227  *
2228  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2229  * Ref IEEE 802.11-2007 section 15.6
2230  *
2231  * This routine selects the channel with the closest center frequency.
2232  */
2233 static inline int ieee80211_freq_to_dsss_chan(int freq)
2234 {
2235         if ((freq >= 2410) && (freq < 2475))
2236                 return (freq - 2405) / 5;
2237         else if ((freq >= 2482) && (freq < 2487))
2238                 return 14;
2239         else
2240                 return -1;
2241 }
2242
2243 /**
2244  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2245  * @tu: the TUs
2246  */
2247 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2248 {
2249         return 1024 * tu;
2250 }
2251
2252 /**
2253  * ieee80211_check_tim - check if AID bit is set in TIM
2254  * @tim: the TIM IE
2255  * @tim_len: length of the TIM IE
2256  * @aid: the AID to look for
2257  */
2258 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2259                                        u8 tim_len, u16 aid)
2260 {
2261         u8 mask;
2262         u8 index, indexn1, indexn2;
2263
2264         if (unlikely(!tim || tim_len < sizeof(*tim)))
2265                 return false;
2266
2267         aid &= 0x3fff;
2268         index = aid / 8;
2269         mask  = 1 << (aid & 7);
2270
2271         indexn1 = tim->bitmap_ctrl & 0xfe;
2272         indexn2 = tim_len + indexn1 - 4;
2273
2274         if (index < indexn1 || index > indexn2)
2275                 return false;
2276
2277         index -= indexn1;
2278
2279         return !!(tim->virtual_map[index] & mask);
2280 }
2281
2282 #endif /* LINUX_IEEE80211_H */