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  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #ifndef __LINUX_IEEE80211_H
  17 #define __LINUX_IEEE80211_H
  18
  19 /*
  20  * DS bit usage
  21  *
  22  * TA = transmitter address
  23  * RA = receiver address
  24  * DA = destination address
  25  * SA = source address
  26  *
  27  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  28  * -----------------------------------------------------------------
  29  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  30  *  0       1       DA      BSSID   SA      -       AP -> STA
  31  *  1       0       BSSID   SA      DA      -       AP <- STA
  32  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  33  */
  34
  35 #define FCS_LEN 4
  36
  37 #define IEEE80211_FCTL_VERS             0x0003
  38 #define IEEE80211_FCTL_FTYPE            0x000c
  39 #define IEEE80211_FCTL_STYPE            0x00f0
  40 #define IEEE80211_FCTL_TODS             0x0100
  41 #define IEEE80211_FCTL_FROMDS           0x0200
  42 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  43 #define IEEE80211_FCTL_RETRY            0x0800
  44 #define IEEE80211_FCTL_PM               0x1000
  45 #define IEEE80211_FCTL_MOREDATA         0x2000
  46 #define IEEE80211_FCTL_PROTECTED        0x4000
  47 #define IEEE80211_FCTL_ORDER            0x8000
  48 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  49
  50 #define IEEE80211_SCTL_FRAG             0x000F
  51 #define IEEE80211_SCTL_SEQ              0xFFF0
  52
  53 #define IEEE80211_FTYPE_MGMT            0x0000
  54 #define IEEE80211_FTYPE_CTL             0x0004
  55 #define IEEE80211_FTYPE_DATA            0x0008
  56 #define IEEE80211_FTYPE_EXT             0x000c
  57
  58 /* management */
  59 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  60 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  61 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  62 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  63 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  64 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  65 #define IEEE80211_STYPE_BEACON          0x0080
  66 #define IEEE80211_STYPE_ATIM            0x0090
  67 #define IEEE80211_STYPE_DISASSOC        0x00A0
  68 #define IEEE80211_STYPE_AUTH            0x00B0
  69 #define IEEE80211_STYPE_DEAUTH          0x00C0
  70 #define IEEE80211_STYPE_ACTION          0x00D0
  71
  72 /* control */
  73 #define IEEE80211_STYPE_CTL_EXT         0x0060
  74 #define IEEE80211_STYPE_BACK_REQ        0x0080
  75 #define IEEE80211_STYPE_BACK            0x0090
  76 #define IEEE80211_STYPE_PSPOLL          0x00A0
  77 #define IEEE80211_STYPE_RTS             0x00B0
  78 #define IEEE80211_STYPE_CTS             0x00C0
  79 #define IEEE80211_STYPE_ACK             0x00D0
  80 #define IEEE80211_STYPE_CFEND           0x00E0
  81 #define IEEE80211_STYPE_CFENDACK        0x00F0
  82
  83 /* data */
  84 #define IEEE80211_STYPE_DATA                    0x0000
  85 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  86 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  87 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  88 #define IEEE80211_STYPE_NULLFUNC                0x0040
  89 #define IEEE80211_STYPE_CFACK                   0x0050
  90 #define IEEE80211_STYPE_CFPOLL                  0x0060
  91 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  92 #define IEEE80211_STYPE_QOS_DATA                0x0080
  93 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  94 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  95 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  96 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  97 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
  98 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
  99 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 100
 101 /* extension, added by 802.11ad */
 102 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 103
 104 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 105 #define IEEE80211_CTL_EXT_POLL          0x2000
 106 #define IEEE80211_CTL_EXT_SPR           0x3000
 107 #define IEEE80211_CTL_EXT_GRANT 0x4000
 108 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 109 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 110 #define IEEE80211_CTL_EXT_SSW           0x8000
 111 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 112 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 113
 114
 115 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 116 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 117 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 118
 119 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 120 {
 121         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 122 }
 123
 124 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 125 {
 126         return (sn1 + sn2) & IEEE80211_SN_MASK;
 127 }
 128
 129 static inline u16 ieee80211_sn_inc(u16 sn)
 130 {
 131         return ieee80211_sn_add(sn, 1);
 132 }
 133
 134 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 135 {
 136         return (sn1 - sn2) & IEEE80211_SN_MASK;
 137 }
 138
 139 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 140 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 141
 142 /* miscellaneous IEEE 802.11 constants */
 143 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 144 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 145 #define IEEE80211_MAX_AID               2007
 146 #define IEEE80211_MAX_TIM_LEN           251
 147 #define IEEE80211_MAX_MESH_PEERINGS     63
 148 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 149    6.2.1.1.2.
 150
 151    802.11e clarifies the figure in section 7.1.2. The frame body is
 152    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 153 #define IEEE80211_MAX_DATA_LEN          2304
 154 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 155  * to 7920 bytes, see 8.2.3 General frame format
 156  */
 157 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 158 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 159 #define IEEE80211_MAX_FRAME_LEN         2352
 160
 161 #define IEEE80211_MAX_SSID_LEN          32
 162
 163 #define IEEE80211_MAX_MESH_ID_LEN       32
 164
 165 #define IEEE80211_NUM_TIDS              16
 166
 167 #define IEEE80211_QOS_CTL_LEN           2
 168 /* 1d tag mask */
 169 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 170 /* TID mask */
 171 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 172 /* EOSP */
 173 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 174 /* ACK policy */
 175 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 176 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 177 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 178 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 179 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 180 /* A-MSDU 802.11n */
 181 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 182 /* Mesh Control 802.11s */
 183 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 184
 185 /* U-APSD queue for WMM IEs sent by AP */
 186 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 187 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 188
 189 /* U-APSD queues for WMM IEs sent by STA */
 190 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 191 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 192 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 193 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 194 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 195
 196 /* U-APSD max SP length for WMM IEs sent by STA */
 197 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 198 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 199 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 200 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 201 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 202 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 203
 204 #define IEEE80211_HT_CTL_LEN            4
 205
 206 struct ieee80211_hdr {
 207         __le16 frame_control;
 208         __le16 duration_id;
 209         u8 addr1[6];
 210         u8 addr2[6];
 211         u8 addr3[6];
 212         __le16 seq_ctrl;
 213         u8 addr4[6];
 214 } __packed __aligned(2);
 215
 216 struct ieee80211_hdr_3addr {
 217         __le16 frame_control;
 218         __le16 duration_id;
 219         u8 addr1[6];
 220         u8 addr2[6];
 221         u8 addr3[6];
 222         __le16 seq_ctrl;
 223 } __packed __aligned(2);
 224
 225 struct ieee80211_qos_hdr {
 226         __le16 frame_control;
 227         __le16 duration_id;
 228         u8 addr1[6];
 229         u8 addr2[6];
 230         u8 addr3[6];
 231         __le16 seq_ctrl;
 232         __le16 qos_ctrl;
 233 } __packed __aligned(2);
 234
 235 /**
 236  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 237  * @fc: frame control bytes in little-endian byteorder
 238  */
 239 static inline int ieee80211_has_tods(__le16 fc)
 240 {
 241         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 242 }
 243
 244 /**
 245  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 246  * @fc: frame control bytes in little-endian byteorder
 247  */
 248 static inline int ieee80211_has_fromds(__le16 fc)
 249 {
 250         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 251 }
 252
 253 /**
 254  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 255  * @fc: frame control bytes in little-endian byteorder
 256  */
 257 static inline int ieee80211_has_a4(__le16 fc)
 258 {
 259         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 260         return (fc & tmp) == tmp;
 261 }
 262
 263 /**
 264  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 265  * @fc: frame control bytes in little-endian byteorder
 266  */
 267 static inline int ieee80211_has_morefrags(__le16 fc)
 268 {
 269         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 270 }
 271
 272 /**
 273  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 274  * @fc: frame control bytes in little-endian byteorder
 275  */
 276 static inline int ieee80211_has_retry(__le16 fc)
 277 {
 278         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 279 }
 280
 281 /**
 282  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 283  * @fc: frame control bytes in little-endian byteorder
 284  */
 285 static inline int ieee80211_has_pm(__le16 fc)
 286 {
 287         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 288 }
 289
 290 /**
 291  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 292  * @fc: frame control bytes in little-endian byteorder
 293  */
 294 static inline int ieee80211_has_moredata(__le16 fc)
 295 {
 296         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 297 }
 298
 299 /**
 300  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 301  * @fc: frame control bytes in little-endian byteorder
 302  */
 303 static inline int ieee80211_has_protected(__le16 fc)
 304 {
 305         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 306 }
 307
 308 /**
 309  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 310  * @fc: frame control bytes in little-endian byteorder
 311  */
 312 static inline int ieee80211_has_order(__le16 fc)
 313 {
 314         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 315 }
 316
 317 /**
 318  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 319  * @fc: frame control bytes in little-endian byteorder
 320  */
 321 static inline int ieee80211_is_mgmt(__le16 fc)
 322 {
 323         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 324                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 325 }
 326
 327 /**
 328  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 329  * @fc: frame control bytes in little-endian byteorder
 330  */
 331 static inline int ieee80211_is_ctl(__le16 fc)
 332 {
 333         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 334                cpu_to_le16(IEEE80211_FTYPE_CTL);
 335 }
 336
 337 /**
 338  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 339  * @fc: frame control bytes in little-endian byteorder
 340  */
 341 static inline int ieee80211_is_data(__le16 fc)
 342 {
 343         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 344                cpu_to_le16(IEEE80211_FTYPE_DATA);
 345 }
 346
 347 /**
 348  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 349  * @fc: frame control bytes in little-endian byteorder
 350  */
 351 static inline int ieee80211_is_data_qos(__le16 fc)
 352 {
 353         /*
 354          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 355          * to check the one bit
 356          */
 357         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 358                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 359 }
 360
 361 /**
 362  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 363  * @fc: frame control bytes in little-endian byteorder
 364  */
 365 static inline int ieee80211_is_data_present(__le16 fc)
 366 {
 367         /*
 368          * mask with 0x40 and test that that bit is clear to only return true
 369          * for the data-containing substypes.
 370          */
 371         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 372                cpu_to_le16(IEEE80211_FTYPE_DATA);
 373 }
 374
 375 /**
 376  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 377  * @fc: frame control bytes in little-endian byteorder
 378  */
 379 static inline int ieee80211_is_assoc_req(__le16 fc)
 380 {
 381         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 382                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 383 }
 384
 385 /**
 386  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 387  * @fc: frame control bytes in little-endian byteorder
 388  */
 389 static inline int ieee80211_is_assoc_resp(__le16 fc)
 390 {
 391         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 392                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 393 }
 394
 395 /**
 396  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 397  * @fc: frame control bytes in little-endian byteorder
 398  */
 399 static inline int ieee80211_is_reassoc_req(__le16 fc)
 400 {
 401         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 402                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 403 }
 404
 405 /**
 406  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 407  * @fc: frame control bytes in little-endian byteorder
 408  */
 409 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 410 {
 411         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 412                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 413 }
 414
 415 /**
 416  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 417  * @fc: frame control bytes in little-endian byteorder
 418  */
 419 static inline int ieee80211_is_probe_req(__le16 fc)
 420 {
 421         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 422                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 423 }
 424
 425 /**
 426  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 427  * @fc: frame control bytes in little-endian byteorder
 428  */
 429 static inline int ieee80211_is_probe_resp(__le16 fc)
 430 {
 431         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 432                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 433 }
 434
 435 /**
 436  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 437  * @fc: frame control bytes in little-endian byteorder
 438  */
 439 static inline int ieee80211_is_beacon(__le16 fc)
 440 {
 441         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 442                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 443 }
 444
 445 /**
 446  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 447  * @fc: frame control bytes in little-endian byteorder
 448  */
 449 static inline int ieee80211_is_atim(__le16 fc)
 450 {
 451         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 452                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 453 }
 454
 455 /**
 456  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 457  * @fc: frame control bytes in little-endian byteorder
 458  */
 459 static inline int ieee80211_is_disassoc(__le16 fc)
 460 {
 461         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 462                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 463 }
 464
 465 /**
 466  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 467  * @fc: frame control bytes in little-endian byteorder
 468  */
 469 static inline int ieee80211_is_auth(__le16 fc)
 470 {
 471         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 472                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 473 }
 474
 475 /**
 476  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 477  * @fc: frame control bytes in little-endian byteorder
 478  */
 479 static inline int ieee80211_is_deauth(__le16 fc)
 480 {
 481         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 482                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 483 }
 484
 485 /**
 486  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 487  * @fc: frame control bytes in little-endian byteorder
 488  */
 489 static inline int ieee80211_is_action(__le16 fc)
 490 {
 491         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 492                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 493 }
 494
 495 /**
 496  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 497  * @fc: frame control bytes in little-endian byteorder
 498  */
 499 static inline int ieee80211_is_back_req(__le16 fc)
 500 {
 501         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 502                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 503 }
 504
 505 /**
 506  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 507  * @fc: frame control bytes in little-endian byteorder
 508  */
 509 static inline int ieee80211_is_back(__le16 fc)
 510 {
 511         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 512                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 513 }
 514
 515 /**
 516  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 517  * @fc: frame control bytes in little-endian byteorder
 518  */
 519 static inline int ieee80211_is_pspoll(__le16 fc)
 520 {
 521         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 522                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 523 }
 524
 525 /**
 526  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 527  * @fc: frame control bytes in little-endian byteorder
 528  */
 529 static inline int ieee80211_is_rts(__le16 fc)
 530 {
 531         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 532                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 533 }
 534
 535 /**
 536  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 537  * @fc: frame control bytes in little-endian byteorder
 538  */
 539 static inline int ieee80211_is_cts(__le16 fc)
 540 {
 541         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 542                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 543 }
 544
 545 /**
 546  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 547  * @fc: frame control bytes in little-endian byteorder
 548  */
 549 static inline int ieee80211_is_ack(__le16 fc)
 550 {
 551         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 552                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 553 }
 554
 555 /**
 556  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 557  * @fc: frame control bytes in little-endian byteorder
 558  */
 559 static inline int ieee80211_is_cfend(__le16 fc)
 560 {
 561         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 562                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 563 }
 564
 565 /**
 566  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 567  * @fc: frame control bytes in little-endian byteorder
 568  */
 569 static inline int ieee80211_is_cfendack(__le16 fc)
 570 {
 571         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 572                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 573 }
 574
 575 /**
 576  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 577  * @fc: frame control bytes in little-endian byteorder
 578  */
 579 static inline int ieee80211_is_nullfunc(__le16 fc)
 580 {
 581         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 582                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 583 }
 584
 585 /**
 586  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 587  * @fc: frame control bytes in little-endian byteorder
 588  */
 589 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 590 {
 591         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 592                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 593 }
 594
 595 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 596 {
 597         unsigned int hdrlen = 24;
 598
 599         if (ieee80211_has_a4(fc))
 600                 hdrlen = 30;
 601
 602         if (ieee80211_is_data_qos(fc)) {
 603                 hdrlen += IEEE80211_QOS_CTL_LEN;
 604                 if (ieee80211_has_order(fc))
 605                         hdrlen += IEEE80211_HT_CTL_LEN;
 606         }
 607
 608         return hdrlen;
 609 }
 610
 611 /**
 612  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 613  * @fc: frame control field in little-endian byteorder
 614  */
 615 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 616 {
 617         /* IEEE 802.11-2012, definition of "bufferable management frame";
 618          * note that this ignores the IBSS special case. */
 619         return ieee80211_is_mgmt(fc) &&
 620                (ieee80211_is_action(fc) ||
 621                 ieee80211_is_disassoc(fc) ||
 622                 ieee80211_is_deauth(fc));
 623 }
 624
 625 /**
 626  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 627  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 628  */
 629 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 630 {
 631         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 632 }
 633
 634 struct ieee80211s_hdr {
 635         u8 flags;
 636         u8 ttl;
 637         __le32 seqnum;
 638         u8 eaddr1[6];
 639         u8 eaddr2[6];
 640 } __packed __aligned(2);
 641
 642 /* Mesh flags */
 643 #define MESH_FLAGS_AE_A4        0x1
 644 #define MESH_FLAGS_AE_A5_A6     0x2
 645 #define MESH_FLAGS_AE           0x3
 646 #define MESH_FLAGS_PS_DEEP      0x4
 647
 648 /**
 649  * enum ieee80211_preq_flags - mesh PREQ element flags
 650  *
 651  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 652  */
 653 enum ieee80211_preq_flags {
 654         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 655 };
 656
 657 /**
 658  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 659  *
 660  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 661  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 662  */
 663 enum ieee80211_preq_target_flags {
 664         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 665         IEEE80211_PREQ_USN_FLAG = 1<<2,
 666 };
 667
 668 /**
 669  * struct ieee80211_quiet_ie
 670  *
 671  * This structure refers to "Quiet information element"
 672  */
 673 struct ieee80211_quiet_ie {
 674         u8 count;
 675         u8 period;
 676         __le16 duration;
 677         __le16 offset;
 678 } __packed;
 679
 680 /**
 681  * struct ieee80211_msrment_ie
 682  *
 683  * This structure refers to "Measurement Request/Report information element"
 684  */
 685 struct ieee80211_msrment_ie {
 686         u8 token;
 687         u8 mode;
 688         u8 type;
 689         u8 request[0];
 690 } __packed;
 691
 692 /**
 693  * struct ieee80211_channel_sw_ie
 694  *
 695  * This structure refers to "Channel Switch Announcement information element"
 696  */
 697 struct ieee80211_channel_sw_ie {
 698         u8 mode;
 699         u8 new_ch_num;
 700         u8 count;
 701 } __packed;
 702
 703 /**
 704  * struct ieee80211_ext_chansw_ie
 705  *
 706  * This structure represents the "Extended Channel Switch Announcement element"
 707  */
 708 struct ieee80211_ext_chansw_ie {
 709         u8 mode;
 710         u8 new_operating_class;
 711         u8 new_ch_num;
 712         u8 count;
 713 } __packed;
 714
 715 /**
 716  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 717  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 718  *      values here
 719  * This structure represents the "Secondary Channel Offset element"
 720  */
 721 struct ieee80211_sec_chan_offs_ie {
 722         u8 sec_chan_offs;
 723 } __packed;
 724
 725 /**
 726  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 727  *
 728  * This structure represents the "Mesh Channel Switch Paramters element"
 729  */
 730 struct ieee80211_mesh_chansw_params_ie {
 731         u8 mesh_ttl;
 732         u8 mesh_flags;
 733         __le16 mesh_reason;
 734         __le16 mesh_pre_value;
 735 } __packed;
 736
 737 /**
 738  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 739  */
 740 struct ieee80211_wide_bw_chansw_ie {
 741         u8 new_channel_width;
 742         u8 new_center_freq_seg0, new_center_freq_seg1;
 743 } __packed;
 744
 745 /**
 746  * struct ieee80211_tim
 747  *
 748  * This structure refers to "Traffic Indication Map information element"
 749  */
 750 struct ieee80211_tim_ie {
 751         u8 dtim_count;
 752         u8 dtim_period;
 753         u8 bitmap_ctrl;
 754         /* variable size: 1 - 251 bytes */
 755         u8 virtual_map[1];
 756 } __packed;
 757
 758 /**
 759  * struct ieee80211_meshconf_ie
 760  *
 761  * This structure refers to "Mesh Configuration information element"
 762  */
 763 struct ieee80211_meshconf_ie {
 764         u8 meshconf_psel;
 765         u8 meshconf_pmetric;
 766         u8 meshconf_congest;
 767         u8 meshconf_synch;
 768         u8 meshconf_auth;
 769         u8 meshconf_form;
 770         u8 meshconf_cap;
 771 } __packed;
 772
 773 /**
 774  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 775  *
 776  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 777  *      additional mesh peerings with other mesh STAs
 778  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 779  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 780  *      is ongoing
 781  */
 782 enum mesh_config_capab_flags {
 783         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 784         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 785         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 786 };
 787
 788 /**
 789  * mesh channel switch parameters element's flag indicator
 790  *
 791  */
 792 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 793 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 794 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 795
 796 /**
 797  * struct ieee80211_rann_ie
 798  *
 799  * This structure refers to "Root Announcement information element"
 800  */
 801 struct ieee80211_rann_ie {
 802         u8 rann_flags;
 803         u8 rann_hopcount;
 804         u8 rann_ttl;
 805         u8 rann_addr[6];
 806         __le32 rann_seq;
 807         __le32 rann_interval;
 808         __le32 rann_metric;
 809 } __packed;
 810
 811 enum ieee80211_rann_flags {
 812         RANN_FLAG_IS_GATE = 1 << 0,
 813 };
 814
 815 enum ieee80211_ht_chanwidth_values {
 816         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 817         IEEE80211_HT_CHANWIDTH_ANY = 1,
 818 };
 819
 820 /**
 821  * enum ieee80211_opmode_bits - VHT operating mode field bits
 822  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 823  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 824  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 825  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 826  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 827  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 828  *      (the NSS value is the value of this field + 1)
 829  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 830  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 831  *      using a beamforming steering matrix
 832  */
 833 enum ieee80211_vht_opmode_bits {
 834         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 835         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 836         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 837         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 838         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 839         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 840         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 841         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 842 };
 843
 844 #define WLAN_SA_QUERY_TR_ID_LEN 2
 845
 846 /**
 847  * struct ieee80211_tpc_report_ie
 848  *
 849  * This structure refers to "TPC Report element"
 850  */
 851 struct ieee80211_tpc_report_ie {
 852         u8 tx_power;
 853         u8 link_margin;
 854 } __packed;
 855
 856 struct ieee80211_mgmt {
 857         __le16 frame_control;
 858         __le16 duration;
 859         u8 da[6];
 860         u8 sa[6];
 861         u8 bssid[6];
 862         __le16 seq_ctrl;
 863         union {
 864                 struct {
 865                         __le16 auth_alg;
 866                         __le16 auth_transaction;
 867                         __le16 status_code;
 868                         /* possibly followed by Challenge text */
 869                         u8 variable[0];
 870                 } __packed auth;
 871                 struct {
 872                         __le16 reason_code;
 873                 } __packed deauth;
 874                 struct {
 875                         __le16 capab_info;
 876                         __le16 listen_interval;
 877                         /* followed by SSID and Supported rates */
 878                         u8 variable[0];
 879                 } __packed assoc_req;
 880                 struct {
 881                         __le16 capab_info;
 882                         __le16 status_code;
 883                         __le16 aid;
 884                         /* followed by Supported rates */
 885                         u8 variable[0];
 886                 } __packed assoc_resp, reassoc_resp;
 887                 struct {
 888                         __le16 capab_info;
 889                         __le16 listen_interval;
 890                         u8 current_ap[6];
 891                         /* followed by SSID and Supported rates */
 892                         u8 variable[0];
 893                 } __packed reassoc_req;
 894                 struct {
 895                         __le16 reason_code;
 896                 } __packed disassoc;
 897                 struct {
 898                         __le64 timestamp;
 899                         __le16 beacon_int;
 900                         __le16 capab_info;
 901                         /* followed by some of SSID, Supported rates,
 902                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 903                         u8 variable[0];
 904                 } __packed beacon;
 905                 struct {
 906                         /* only variable items: SSID, Supported rates */
 907                         u8 variable[0];
 908                 } __packed probe_req;
 909                 struct {
 910                         __le64 timestamp;
 911                         __le16 beacon_int;
 912                         __le16 capab_info;
 913                         /* followed by some of SSID, Supported rates,
 914                          * FH Params, DS Params, CF Params, IBSS Params */
 915                         u8 variable[0];
 916                 } __packed probe_resp;
 917                 struct {
 918                         u8 category;
 919                         union {
 920                                 struct {
 921                                         u8 action_code;
 922                                         u8 dialog_token;
 923                                         u8 status_code;
 924                                         u8 variable[0];
 925                                 } __packed wme_action;
 926                                 struct{
 927                                         u8 action_code;
 928                                         u8 variable[0];
 929                                 } __packed chan_switch;
 930                                 struct{
 931                                         u8 action_code;
 932                                         struct ieee80211_ext_chansw_ie data;
 933                                         u8 variable[0];
 934                                 } __packed ext_chan_switch;
 935                                 struct{
 936                                         u8 action_code;
 937                                         u8 dialog_token;
 938                                         u8 element_id;
 939                                         u8 length;
 940                                         struct ieee80211_msrment_ie msr_elem;
 941                                 } __packed measurement;
 942                                 struct{
 943                                         u8 action_code;
 944                                         u8 dialog_token;
 945                                         __le16 capab;
 946                                         __le16 timeout;
 947                                         __le16 start_seq_num;
 948                                 } __packed addba_req;
 949                                 struct{
 950                                         u8 action_code;
 951                                         u8 dialog_token;
 952                                         __le16 status;
 953                                         __le16 capab;
 954                                         __le16 timeout;
 955                                 } __packed addba_resp;
 956                                 struct{
 957                                         u8 action_code;
 958                                         __le16 params;
 959                                         __le16 reason_code;
 960                                 } __packed delba;
 961                                 struct {
 962                                         u8 action_code;
 963                                         u8 variable[0];
 964                                 } __packed self_prot;
 965                                 struct{
 966                                         u8 action_code;
 967                                         u8 variable[0];
 968                                 } __packed mesh_action;
 969                                 struct {
 970                                         u8 action;
 971                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 972                                 } __packed sa_query;
 973                                 struct {
 974                                         u8 action;
 975                                         u8 smps_control;
 976                                 } __packed ht_smps;
 977                                 struct {
 978                                         u8 action_code;
 979                                         u8 chanwidth;
 980                                 } __packed ht_notify_cw;
 981                                 struct {
 982                                         u8 action_code;
 983                                         u8 dialog_token;
 984                                         __le16 capability;
 985                                         u8 variable[0];
 986                                 } __packed tdls_discover_resp;
 987                                 struct {
 988                                         u8 action_code;
 989                                         u8 operating_mode;
 990                                 } __packed vht_opmode_notif;
 991                                 struct {
 992                                         u8 action_code;
 993                                         u8 dialog_token;
 994                                         u8 tpc_elem_id;
 995                                         u8 tpc_elem_length;
 996                                         struct ieee80211_tpc_report_ie tpc;
 997                                 } __packed tpc_report;
 998                         } u;
 999                 } __packed action;
1000         } u;
1001 } __packed __aligned(2);
1002
1003 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1004 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1005
1006 /* mgmt header + 1 byte category code */
1007 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1008
1009
1010 /* Management MIC information element (IEEE 802.11w) */
1011 struct ieee80211_mmie {
1012         u8 element_id;
1013         u8 length;
1014         __le16 key_id;
1015         u8 sequence_number[6];
1016         u8 mic[8];
1017 } __packed;
1018
1019 struct ieee80211_vendor_ie {
1020         u8 element_id;
1021         u8 len;
1022         u8 oui[3];
1023         u8 oui_type;
1024 } __packed;
1025
1026 struct ieee80211_wmm_ac_param {
1027         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1028         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1029         __le16 txop_limit;
1030 } __packed;
1031
1032 struct ieee80211_wmm_param_ie {
1033         u8 element_id; /* Element ID: 221 (0xdd); */
1034         u8 len; /* Length: 24 */
1035         /* required fields for WMM version 1 */
1036         u8 oui[3]; /* 00:50:f2 */
1037         u8 oui_type; /* 2 */
1038         u8 oui_subtype; /* 1 */
1039         u8 version; /* 1 for WMM version 1.0 */
1040         u8 qos_info; /* AP/STA specific QoS info */
1041         u8 reserved; /* 0 */
1042         /* AC_BE, AC_BK, AC_VI, AC_VO */
1043         struct ieee80211_wmm_ac_param ac[4];
1044 } __packed;
1045
1046 /* Control frames */
1047 struct ieee80211_rts {
1048         __le16 frame_control;
1049         __le16 duration;
1050         u8 ra[6];
1051         u8 ta[6];
1052 } __packed __aligned(2);
1053
1054 struct ieee80211_cts {
1055         __le16 frame_control;
1056         __le16 duration;
1057         u8 ra[6];
1058 } __packed __aligned(2);
1059
1060 struct ieee80211_pspoll {
1061         __le16 frame_control;
1062         __le16 aid;
1063         u8 bssid[6];
1064         u8 ta[6];
1065 } __packed __aligned(2);
1066
1067 /* TDLS */
1068
1069 /* Link-id information element */
1070 struct ieee80211_tdls_lnkie {
1071         u8 ie_type; /* Link Identifier IE */
1072         u8 ie_len;
1073         u8 bssid[6];
1074         u8 init_sta[6];
1075         u8 resp_sta[6];
1076 } __packed;
1077
1078 struct ieee80211_tdls_data {
1079         u8 da[6];
1080         u8 sa[6];
1081         __be16 ether_type;
1082         u8 payload_type;
1083         u8 category;
1084         u8 action_code;
1085         union {
1086                 struct {
1087                         u8 dialog_token;
1088                         __le16 capability;
1089                         u8 variable[0];
1090                 } __packed setup_req;
1091                 struct {
1092                         __le16 status_code;
1093                         u8 dialog_token;
1094                         __le16 capability;
1095                         u8 variable[0];
1096                 } __packed setup_resp;
1097                 struct {
1098                         __le16 status_code;
1099                         u8 dialog_token;
1100                         u8 variable[0];
1101                 } __packed setup_cfm;
1102                 struct {
1103                         __le16 reason_code;
1104                         u8 variable[0];
1105                 } __packed teardown;
1106                 struct {
1107                         u8 dialog_token;
1108                         u8 variable[0];
1109                 } __packed discover_req;
1110         } u;
1111 } __packed;
1112
1113 /*
1114  * Peer-to-Peer IE attribute related definitions.
1115  */
1116 /**
1117  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1118  */
1119 enum ieee80211_p2p_attr_id {
1120         IEEE80211_P2P_ATTR_STATUS = 0,
1121         IEEE80211_P2P_ATTR_MINOR_REASON,
1122         IEEE80211_P2P_ATTR_CAPABILITY,
1123         IEEE80211_P2P_ATTR_DEVICE_ID,
1124         IEEE80211_P2P_ATTR_GO_INTENT,
1125         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1126         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1127         IEEE80211_P2P_ATTR_GROUP_BSSID,
1128         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1129         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1130         IEEE80211_P2P_ATTR_MANAGABILITY,
1131         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1132         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1133         IEEE80211_P2P_ATTR_DEVICE_INFO,
1134         IEEE80211_P2P_ATTR_GROUP_INFO,
1135         IEEE80211_P2P_ATTR_GROUP_ID,
1136         IEEE80211_P2P_ATTR_INTERFACE,
1137         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1138         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1139         /* 19 - 220: Reserved */
1140         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1141
1142         IEEE80211_P2P_ATTR_MAX
1143 };
1144
1145 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1146 /* Typical max value used here */
1147 #define IEEE80211_P2P_NOA_DESC_MAX      4
1148
1149 struct ieee80211_p2p_noa_desc {
1150         u8 count;
1151         __le32 duration;
1152         __le32 interval;
1153         __le32 start_time;
1154 } __packed;
1155
1156 struct ieee80211_p2p_noa_attr {
1157         u8 index;
1158         u8 oppps_ctwindow;
1159         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1160 } __packed;
1161
1162 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1163 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1164
1165 /**
1166  * struct ieee80211_bar - HT Block Ack Request
1167  *
1168  * This structure refers to "HT BlockAckReq" as
1169  * described in 802.11n draft section 7.2.1.7.1
1170  */
1171 struct ieee80211_bar {
1172         __le16 frame_control;
1173         __le16 duration;
1174         __u8 ra[6];
1175         __u8 ta[6];
1176         __le16 control;
1177         __le16 start_seq_num;
1178 } __packed __aligned(4);
1179
1180 /* 802.11 BA(R) control masks */
1181 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1182 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1183 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1184 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1185 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1186
1187 /**
1188  * struct ieee80211_ba - HT Block Ack
1189  *
1190  * This structure refers to "HT BlockAck" as
1191  * described in 802.11n draft section 7.2.1.8.1
1192  */
1193 struct ieee80211_ba {
1194         __le16 frame_control;
1195         __le16 duration;
1196         u8 ra[6];
1197         u8 ta[6];
1198         __le16 control;
1199
1200         __le16 start_seq_num;
1201         u8 bitmap[8];
1202 } __packed;
1203
1204 #define IEEE80211_HT_MCS_MASK_LEN               10
1205
1206 /**
1207  * struct ieee80211_mcs_info - MCS information
1208  * @rx_mask: RX mask
1209  * @rx_highest: highest supported RX rate. If set represents
1210  *      the highest supported RX data rate in units of 1 Mbps.
1211  *      If this field is 0 this value should not be used to
1212  *      consider the highest RX data rate supported.
1213  * @tx_params: TX parameters
1214  */
1215 struct ieee80211_mcs_info {
1216         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1217         __le16 rx_highest;
1218         u8 tx_params;
1219         u8 reserved[3];
1220 } __packed;
1221
1222 /* 802.11n HT capability MSC set */
1223 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1224 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1225 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1226 /* value 0 == 1 stream etc */
1227 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1228 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1229 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1230 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1231
1232 /*
1233  * 802.11n D5.0 20.3.5 / 20.6 says:
1234  * - indices 0 to 7 and 32 are single spatial stream
1235  * - 8 to 31 are multiple spatial streams using equal modulation
1236  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1237  * - remainder are multiple spatial streams using unequal modulation
1238  */
1239 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1240 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1241         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1242
1243 /**
1244  * struct ieee80211_ht_cap - HT capabilities
1245  *
1246  * This structure is the "HT capabilities element" as
1247  * described in 802.11n D5.0 7.3.2.57
1248  */
1249 struct ieee80211_ht_cap {
1250         __le16 cap_info;
1251         u8 ampdu_params_info;
1252
1253         /* 16 bytes MCS information */
1254         struct ieee80211_mcs_info mcs;
1255
1256         __le16 extended_ht_cap_info;
1257         __le32 tx_BF_cap_info;
1258         u8 antenna_selection_info;
1259 } __packed;
1260
1261 /* 802.11n HT capabilities masks (for cap_info) */
1262 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1263 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1264 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1265 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1266 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1267 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1268 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1269 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1270 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1271 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1272 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1273 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1274 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1275 #define IEEE80211_HT_CAP_RESERVED               0x2000
1276 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1277 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1278
1279 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1280 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1281 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1282 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1283 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1284 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1285 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1286 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1287
1288 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1289 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1290 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1291 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1292
1293 /*
1294  * Maximum length of AMPDU that the STA can receive.
1295  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1296  */
1297 enum ieee80211_max_ampdu_length_exp {
1298         IEEE80211_HT_MAX_AMPDU_8K = 0,
1299         IEEE80211_HT_MAX_AMPDU_16K = 1,
1300         IEEE80211_HT_MAX_AMPDU_32K = 2,
1301         IEEE80211_HT_MAX_AMPDU_64K = 3
1302 };
1303
1304 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1305
1306 /* Minimum MPDU start spacing */
1307 enum ieee80211_min_mpdu_spacing {
1308         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1309         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1310         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1311         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1312         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1313         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1314         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1315         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1316 };
1317
1318 /**
1319  * struct ieee80211_ht_operation - HT operation IE
1320  *
1321  * This structure is the "HT operation element" as
1322  * described in 802.11n-2009 7.3.2.57
1323  */
1324 struct ieee80211_ht_operation {
1325         u8 primary_chan;
1326         u8 ht_param;
1327         __le16 operation_mode;
1328         __le16 stbc_param;
1329         u8 basic_set[16];
1330 } __packed;
1331
1332 /* for ht_param */
1333 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1334 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1335 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1336 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1337 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1338 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1339
1340 /* for operation_mode */
1341 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1342 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1343 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1344 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1345 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1346 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1347 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1348
1349 /* for stbc_param */
1350 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1351 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1352 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1353 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1354 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1355 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1356
1357
1358 /* block-ack parameters */
1359 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1360 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1361 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1362 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1363 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1364
1365 /*
1366  * A-PMDU buffer sizes
1367  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1368  */
1369 #define IEEE80211_MIN_AMPDU_BUF 0x8
1370 #define IEEE80211_MAX_AMPDU_BUF 0x40
1371
1372
1373 /* Spatial Multiplexing Power Save Modes (for capability) */
1374 #define WLAN_HT_CAP_SM_PS_STATIC        0
1375 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1376 #define WLAN_HT_CAP_SM_PS_INVALID       2
1377 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1378
1379 /* for SM power control field lower two bits */
1380 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1381 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1382 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1383
1384 /**
1385  * struct ieee80211_vht_mcs_info - VHT MCS information
1386  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1387  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1388  *      STA can receive. Rate expressed in units of 1 Mbps.
1389  *      If this field is 0 this value should not be used to
1390  *      consider the highest RX data rate supported.
1391  *      The top 3 bits of this field are reserved.
1392  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1393  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1394  *      STA can transmit. Rate expressed in units of 1 Mbps.
1395  *      If this field is 0 this value should not be used to
1396  *      consider the highest TX data rate supported.
1397  *      The top 3 bits of this field are reserved.
1398  */
1399 struct ieee80211_vht_mcs_info {
1400         __le16 rx_mcs_map;
1401         __le16 rx_highest;
1402         __le16 tx_mcs_map;
1403         __le16 tx_highest;
1404 } __packed;
1405
1406 /**
1407  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1408  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1409  *      number of streams
1410  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1411  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1412  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1413  *
1414  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1415  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1416  * both split into 8 subfields by number of streams. These values indicate
1417  * which MCSes are supported for the number of streams the value appears
1418  * for.
1419  */
1420 enum ieee80211_vht_mcs_support {
1421         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1422         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1423         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1424         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1425 };
1426
1427 /**
1428  * struct ieee80211_vht_cap - VHT capabilities
1429  *
1430  * This structure is the "VHT capabilities element" as
1431  * described in 802.11ac D3.0 8.4.2.160
1432  * @vht_cap_info: VHT capability info
1433  * @supp_mcs: VHT MCS supported rates
1434  */
1435 struct ieee80211_vht_cap {
1436         __le32 vht_cap_info;
1437         struct ieee80211_vht_mcs_info supp_mcs;
1438 } __packed;
1439
1440 /**
1441  * enum ieee80211_vht_chanwidth - VHT channel width
1442  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1443  *      determine the channel width (20 or 40 MHz)
1444  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1445  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1446  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1447  */
1448 enum ieee80211_vht_chanwidth {
1449         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1450         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1451         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1452         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1453 };
1454
1455 /**
1456  * struct ieee80211_vht_operation - VHT operation IE
1457  *
1458  * This structure is the "VHT operation element" as
1459  * described in 802.11ac D3.0 8.4.2.161
1460  * @chan_width: Operating channel width
1461  * @center_freq_seg1_idx: center freq segment 1 index
1462  * @center_freq_seg2_idx: center freq segment 2 index
1463  * @basic_mcs_set: VHT Basic MCS rate set
1464  */
1465 struct ieee80211_vht_operation {
1466         u8 chan_width;
1467         u8 center_freq_seg1_idx;
1468         u8 center_freq_seg2_idx;
1469         __le16 basic_mcs_set;
1470 } __packed;
1471
1472
1473 /* 802.11ac VHT Capabilities */
1474 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1475 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1476 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1477 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1478 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1479 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1480 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1481 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1482 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1483 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1484 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1485 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1486 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1487 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1488 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1489 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1490 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1491 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1492                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1493 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1494 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1495                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1496 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1497 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1498 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1499 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1500 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1501 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1502                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1503 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1504 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1505 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1506 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1507
1508 /* Authentication algorithms */
1509 #define WLAN_AUTH_OPEN 0
1510 #define WLAN_AUTH_SHARED_KEY 1
1511 #define WLAN_AUTH_FT 2
1512 #define WLAN_AUTH_SAE 3
1513 #define WLAN_AUTH_LEAP 128
1514
1515 #define WLAN_AUTH_CHALLENGE_LEN 128
1516
1517 #define WLAN_CAPABILITY_ESS             (1<<0)
1518 #define WLAN_CAPABILITY_IBSS            (1<<1)
1519
1520 /*
1521  * A mesh STA sets the ESS and IBSS capability bits to zero.
1522  * however, this holds true for p2p probe responses (in the p2p_find
1523  * phase) as well.
1524  */
1525 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1526         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1527
1528 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1529 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1530 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1531 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1532 #define WLAN_CAPABILITY_PBCC            (1<<6)
1533 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1534
1535 /* 802.11h */
1536 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1537 #define WLAN_CAPABILITY_QOS             (1<<9)
1538 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1539 #define WLAN_CAPABILITY_APSD            (1<<11)
1540 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1541 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1542 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1543 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1544
1545 /* DMG (60gHz) 802.11ad */
1546 /* type - bits 0..1 */
1547 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1548 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1549 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1550 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1551
1552 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1553 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1554 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1555 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1556
1557 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1558 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1559
1560 /* measurement */
1561 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1562 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1563 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1564
1565 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1566 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1567 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1568
1569 /* 802.11g ERP information element */
1570 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1571 #define WLAN_ERP_USE_PROTECTION (1<<1)
1572 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1573
1574 /* WLAN_ERP_BARKER_PREAMBLE values */
1575 enum {
1576         WLAN_ERP_PREAMBLE_SHORT = 0,
1577         WLAN_ERP_PREAMBLE_LONG = 1,
1578 };
1579
1580 /* Band ID, 802.11ad #8.4.1.45 */
1581 enum {
1582         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1583         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1584         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1585         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1586         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1587         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1588 };
1589
1590 /* Status codes */
1591 enum ieee80211_statuscode {
1592         WLAN_STATUS_SUCCESS = 0,
1593         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1594         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1595         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1596         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1597         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1598         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1599         WLAN_STATUS_CHALLENGE_FAIL = 15,
1600         WLAN_STATUS_AUTH_TIMEOUT = 16,
1601         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1602         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1603         /* 802.11b */
1604         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1605         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1606         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1607         /* 802.11h */
1608         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1609         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1610         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1611         /* 802.11g */
1612         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1613         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1614         /* 802.11w */
1615         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1616         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1617         /* 802.11i */
1618         WLAN_STATUS_INVALID_IE = 40,
1619         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1620         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1621         WLAN_STATUS_INVALID_AKMP = 43,
1622         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1623         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1624         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1625         /* 802.11e */
1626         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1627         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1628         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1629         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1630         WLAN_STATUS_REQUEST_DECLINED = 37,
1631         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1632         WLAN_STATUS_CHANGE_TSPEC = 39,
1633         WLAN_STATUS_WAIT_TS_DELAY = 47,
1634         WLAN_STATUS_NO_DIRECT_LINK = 48,
1635         WLAN_STATUS_STA_NOT_PRESENT = 49,
1636         WLAN_STATUS_STA_NOT_QSTA = 50,
1637         /* 802.11s */
1638         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1639         WLAN_STATUS_FCG_NOT_SUPP = 78,
1640         WLAN_STATUS_STA_NO_TBTT = 78,
1641         /* 802.11ad */
1642         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1643         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1644         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1645         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1646         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1647         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1648         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1649         WLAN_STATUS_REJECT_DSE_BAND = 96,
1650         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1651         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1652 };
1653
1654
1655 /* Reason codes */
1656 enum ieee80211_reasoncode {
1657         WLAN_REASON_UNSPECIFIED = 1,
1658         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1659         WLAN_REASON_DEAUTH_LEAVING = 3,
1660         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1661         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1662         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1663         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1664         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1665         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1666         /* 802.11h */
1667         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1668         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1669         /* 802.11i */
1670         WLAN_REASON_INVALID_IE = 13,
1671         WLAN_REASON_MIC_FAILURE = 14,
1672         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1673         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1674         WLAN_REASON_IE_DIFFERENT = 17,
1675         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1676         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1677         WLAN_REASON_INVALID_AKMP = 20,
1678         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1679         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1680         WLAN_REASON_IEEE8021X_FAILED = 23,
1681         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1682         /* TDLS (802.11z) */
1683         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1684         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1685         /* 802.11e */
1686         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1687         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1688         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1689         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1690         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1691         WLAN_REASON_QSTA_NOT_USE = 37,
1692         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1693         WLAN_REASON_QSTA_TIMEOUT = 39,
1694         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1695         /* 802.11s */
1696         WLAN_REASON_MESH_PEER_CANCELED = 52,
1697         WLAN_REASON_MESH_MAX_PEERS = 53,
1698         WLAN_REASON_MESH_CONFIG = 54,
1699         WLAN_REASON_MESH_CLOSE = 55,
1700         WLAN_REASON_MESH_MAX_RETRIES = 56,
1701         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1702         WLAN_REASON_MESH_INVALID_GTK = 58,
1703         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1704         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1705         WLAN_REASON_MESH_PATH_ERROR = 61,
1706         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1707         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1708         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1709         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1710         WLAN_REASON_MESH_CHAN = 66,
1711 };
1712
1713
1714 /* Information Element IDs */
1715 enum ieee80211_eid {
1716         WLAN_EID_SSID = 0,
1717         WLAN_EID_SUPP_RATES = 1,
1718         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1719         WLAN_EID_DS_PARAMS = 3,
1720         WLAN_EID_CF_PARAMS = 4,
1721         WLAN_EID_TIM = 5,
1722         WLAN_EID_IBSS_PARAMS = 6,
1723         WLAN_EID_COUNTRY = 7,
1724         WLAN_EID_HP_PARAMS = 8,
1725         WLAN_EID_HP_TABLE = 9,
1726         WLAN_EID_REQUEST = 10,
1727         WLAN_EID_QBSS_LOAD = 11,
1728         WLAN_EID_EDCA_PARAM_SET = 12,
1729         WLAN_EID_TSPEC = 13,
1730         WLAN_EID_TCLAS = 14,
1731         WLAN_EID_SCHEDULE = 15,
1732         WLAN_EID_CHALLENGE = 16,
1733         /* 17-31 reserved for challenge text extension */
1734         WLAN_EID_PWR_CONSTRAINT = 32,
1735         WLAN_EID_PWR_CAPABILITY = 33,
1736         WLAN_EID_TPC_REQUEST = 34,
1737         WLAN_EID_TPC_REPORT = 35,
1738         WLAN_EID_SUPPORTED_CHANNELS = 36,
1739         WLAN_EID_CHANNEL_SWITCH = 37,
1740         WLAN_EID_MEASURE_REQUEST = 38,
1741         WLAN_EID_MEASURE_REPORT = 39,
1742         WLAN_EID_QUIET = 40,
1743         WLAN_EID_IBSS_DFS = 41,
1744         WLAN_EID_ERP_INFO = 42,
1745         WLAN_EID_TS_DELAY = 43,
1746         WLAN_EID_TCLAS_PROCESSING = 44,
1747         WLAN_EID_HT_CAPABILITY = 45,
1748         WLAN_EID_QOS_CAPA = 46,
1749         /* 47 reserved for Broadcom */
1750         WLAN_EID_RSN = 48,
1751         WLAN_EID_802_15_COEX = 49,
1752         WLAN_EID_EXT_SUPP_RATES = 50,
1753         WLAN_EID_AP_CHAN_REPORT = 51,
1754         WLAN_EID_NEIGHBOR_REPORT = 52,
1755         WLAN_EID_RCPI = 53,
1756         WLAN_EID_MOBILITY_DOMAIN = 54,
1757         WLAN_EID_FAST_BSS_TRANSITION = 55,
1758         WLAN_EID_TIMEOUT_INTERVAL = 56,
1759         WLAN_EID_RIC_DATA = 57,
1760         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1761         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1762         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1763         WLAN_EID_HT_OPERATION = 61,
1764         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1765         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1766         WLAN_EID_ANTENNA_INFO = 64,
1767         WLAN_EID_RSNI = 65,
1768         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1769         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1770         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1771         WLAN_EID_TIME_ADVERTISEMENT = 69,
1772         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1773         WLAN_EID_MULTIPLE_BSSID = 71,
1774         WLAN_EID_BSS_COEX_2040 = 72,
1775         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1776         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1777         WLAN_EID_RIC_DESCRIPTOR = 75,
1778         WLAN_EID_MMIE = 76,
1779         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1780         WLAN_EID_EVENT_REQUEST = 78,
1781         WLAN_EID_EVENT_REPORT = 79,
1782         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1783         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1784         WLAN_EID_LOCATION_PARAMS = 82,
1785         WLAN_EID_NON_TX_BSSID_CAP =  83,
1786         WLAN_EID_SSID_LIST = 84,
1787         WLAN_EID_MULTI_BSSID_IDX = 85,
1788         WLAN_EID_FMS_DESCRIPTOR = 86,
1789         WLAN_EID_FMS_REQUEST = 87,
1790         WLAN_EID_FMS_RESPONSE = 88,
1791         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1792         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1793         WLAN_EID_TSF_REQUEST = 91,
1794         WLAN_EID_TSF_RESPOSNE = 92,
1795         WLAN_EID_WNM_SLEEP_MODE = 93,
1796         WLAN_EID_TIM_BCAST_REQ = 94,
1797         WLAN_EID_TIM_BCAST_RESP = 95,
1798         WLAN_EID_COLL_IF_REPORT = 96,
1799         WLAN_EID_CHANNEL_USAGE = 97,
1800         WLAN_EID_TIME_ZONE = 98,
1801         WLAN_EID_DMS_REQUEST = 99,
1802         WLAN_EID_DMS_RESPONSE = 100,
1803         WLAN_EID_LINK_ID = 101,
1804         WLAN_EID_WAKEUP_SCHEDUL = 102,
1805         /* 103 reserved */
1806         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1807         WLAN_EID_PTI_CONTROL = 105,
1808         WLAN_EID_PU_BUFFER_STATUS = 106,
1809         WLAN_EID_INTERWORKING = 107,
1810         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1811         WLAN_EID_EXPEDITED_BW_REQ = 109,
1812         WLAN_EID_QOS_MAP_SET = 110,
1813         WLAN_EID_ROAMING_CONSORTIUM = 111,
1814         WLAN_EID_EMERGENCY_ALERT = 112,
1815         WLAN_EID_MESH_CONFIG = 113,
1816         WLAN_EID_MESH_ID = 114,
1817         WLAN_EID_LINK_METRIC_REPORT = 115,
1818         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1819         WLAN_EID_PEER_MGMT = 117,
1820         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1821         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1822         WLAN_EID_BEACON_TIMING = 120,
1823         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1824         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1825         WLAN_EID_MCCAOP_ADVERT = 123,
1826         WLAN_EID_MCCAOP_TEARDOWN = 124,
1827         WLAN_EID_GANN = 125,
1828         WLAN_EID_RANN = 126,
1829         WLAN_EID_EXT_CAPABILITY = 127,
1830         /* 128, 129 reserved for Agere */
1831         WLAN_EID_PREQ = 130,
1832         WLAN_EID_PREP = 131,
1833         WLAN_EID_PERR = 132,
1834         /* 133-136 reserved for Cisco */
1835         WLAN_EID_PXU = 137,
1836         WLAN_EID_PXUC = 138,
1837         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1838         WLAN_EID_MIC = 140,
1839         WLAN_EID_DESTINATION_URI = 141,
1840         WLAN_EID_UAPSD_COEX = 142,
1841         WLAN_EID_WAKEUP_SCHEDULE = 143,
1842         WLAN_EID_EXT_SCHEDULE = 144,
1843         WLAN_EID_STA_AVAILABILITY = 145,
1844         WLAN_EID_DMG_TSPEC = 146,
1845         WLAN_EID_DMG_AT = 147,
1846         WLAN_EID_DMG_CAP = 148,
1847         /* 149 reserved for Cisco */
1848         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1849         WLAN_EID_DMG_OPERATION = 151,
1850         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1851         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1852         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1853         /* 155-156 reserved for Cisco */
1854         WLAN_EID_AWAKE_WINDOW = 157,
1855         WLAN_EID_MULTI_BAND = 158,
1856         WLAN_EID_ADDBA_EXT = 159,
1857         WLAN_EID_NEXT_PCP_LIST = 160,
1858         WLAN_EID_PCP_HANDOVER = 161,
1859         WLAN_EID_DMG_LINK_MARGIN = 162,
1860         WLAN_EID_SWITCHING_STREAM = 163,
1861         WLAN_EID_SESSION_TRANSITION = 164,
1862         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1863         WLAN_EID_CLUSTER_REPORT = 166,
1864         WLAN_EID_RELAY_CAP = 167,
1865         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1866         WLAN_EID_BEAM_LINK_MAINT = 169,
1867         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1868         WLAN_EID_U_PID = 171,
1869         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1870         /* 173 reserved for Symbol */
1871         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1872         WLAN_EID_QUIET_PERIOD_REQ = 175,
1873         /* 176 reserved for Symbol */
1874         WLAN_EID_QUIET_PERIOD_RESP = 177,
1875         /* 178-179 reserved for Symbol */
1876         /* 180 reserved for ISO/IEC 20011 */
1877         WLAN_EID_EPAC_POLICY = 182,
1878         WLAN_EID_CLISTER_TIME_OFF = 183,
1879         WLAN_EID_INTER_AC_PRIO = 184,
1880         WLAN_EID_SCS_DESCRIPTOR = 185,
1881         WLAN_EID_QLOAD_REPORT = 186,
1882         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1883         WLAN_EID_HL_STREAM_ID = 188,
1884         WLAN_EID_GCR_GROUP_ADDR = 189,
1885         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1886         WLAN_EID_VHT_CAPABILITY = 191,
1887         WLAN_EID_VHT_OPERATION = 192,
1888         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1889         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1890         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1891         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1892         WLAN_EID_AID = 197,
1893         WLAN_EID_QUIET_CHANNEL = 198,
1894         WLAN_EID_OPMODE_NOTIF = 199,
1895
1896         WLAN_EID_VENDOR_SPECIFIC = 221,
1897         WLAN_EID_QOS_PARAMETER = 222,
1898 };
1899
1900 /* Action category code */
1901 enum ieee80211_category {
1902         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1903         WLAN_CATEGORY_QOS = 1,
1904         WLAN_CATEGORY_DLS = 2,
1905         WLAN_CATEGORY_BACK = 3,
1906         WLAN_CATEGORY_PUBLIC = 4,
1907         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1908         WLAN_CATEGORY_HT = 7,
1909         WLAN_CATEGORY_SA_QUERY = 8,
1910         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1911         WLAN_CATEGORY_TDLS = 12,
1912         WLAN_CATEGORY_MESH_ACTION = 13,
1913         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1914         WLAN_CATEGORY_SELF_PROTECTED = 15,
1915         WLAN_CATEGORY_DMG = 16,
1916         WLAN_CATEGORY_WMM = 17,
1917         WLAN_CATEGORY_FST = 18,
1918         WLAN_CATEGORY_UNPROT_DMG = 20,
1919         WLAN_CATEGORY_VHT = 21,
1920         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1921         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1922 };
1923
1924 /* SPECTRUM_MGMT action code */
1925 enum ieee80211_spectrum_mgmt_actioncode {
1926         WLAN_ACTION_SPCT_MSR_REQ = 0,
1927         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1928         WLAN_ACTION_SPCT_TPC_REQ = 2,
1929         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1930         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1931 };
1932
1933 /* HT action codes */
1934 enum ieee80211_ht_actioncode {
1935         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1936         WLAN_HT_ACTION_SMPS = 1,
1937         WLAN_HT_ACTION_PSMP = 2,
1938         WLAN_HT_ACTION_PCO_PHASE = 3,
1939         WLAN_HT_ACTION_CSI = 4,
1940         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1941         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1942         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1943 };
1944
1945 /* VHT action codes */
1946 enum ieee80211_vht_actioncode {
1947         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1948         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1949         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1950 };
1951
1952 /* Self Protected Action codes */
1953 enum ieee80211_self_protected_actioncode {
1954         WLAN_SP_RESERVED = 0,
1955         WLAN_SP_MESH_PEERING_OPEN = 1,
1956         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1957         WLAN_SP_MESH_PEERING_CLOSE = 3,
1958         WLAN_SP_MGK_INFORM = 4,
1959         WLAN_SP_MGK_ACK = 5,
1960 };
1961
1962 /* Mesh action codes */
1963 enum ieee80211_mesh_actioncode {
1964         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1965         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1966         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1967         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1968         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1969         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1970         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1971         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1972         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1973         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1974         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1975 };
1976
1977 /* Security key length */
1978 enum ieee80211_key_len {
1979         WLAN_KEY_LEN_WEP40 = 5,
1980         WLAN_KEY_LEN_WEP104 = 13,
1981         WLAN_KEY_LEN_CCMP = 16,
1982         WLAN_KEY_LEN_TKIP = 32,
1983         WLAN_KEY_LEN_AES_CMAC = 16,
1984         WLAN_KEY_LEN_SMS4 = 32,
1985 };
1986
1987 #define IEEE80211_WEP_IV_LEN            4
1988 #define IEEE80211_WEP_ICV_LEN           4
1989 #define IEEE80211_CCMP_HDR_LEN          8
1990 #define IEEE80211_CCMP_MIC_LEN          8
1991 #define IEEE80211_CCMP_PN_LEN           6
1992 #define IEEE80211_TKIP_IV_LEN           8
1993 #define IEEE80211_TKIP_ICV_LEN          4
1994 #define IEEE80211_CMAC_PN_LEN           6
1995
1996 /* Public action codes */
1997 enum ieee80211_pub_actioncode {
1998         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
1999         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2000 };
2001
2002 /* TDLS action codes */
2003 enum ieee80211_tdls_actioncode {
2004         WLAN_TDLS_SETUP_REQUEST = 0,
2005         WLAN_TDLS_SETUP_RESPONSE = 1,
2006         WLAN_TDLS_SETUP_CONFIRM = 2,
2007         WLAN_TDLS_TEARDOWN = 3,
2008         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2009         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2010         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2011         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2012         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2013         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2014         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2015 };
2016
2017 /* Interworking capabilities are set in 7th bit of 4th byte of the
2018  * @WLAN_EID_EXT_CAPABILITY information element
2019  */
2020 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2021
2022 /*
2023  * TDLS capabililites to be enabled in the 5th byte of the
2024  * @WLAN_EID_EXT_CAPABILITY information element
2025  */
2026 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2027 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2028
2029 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2030 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(7)
2031
2032 /* TDLS specific payload type in the LLC/SNAP header */
2033 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2034
2035 /**
2036  * enum - mesh synchronization method identifier
2037  *
2038  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2039  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2040  *      that will be specified in a vendor specific information element
2041  */
2042 enum {
2043         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2044         IEEE80211_SYNC_METHOD_VENDOR = 255,
2045 };
2046
2047 /**
2048  * enum - mesh path selection protocol identifier
2049  *
2050  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2051  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2052  *      be specified in a vendor specific information element
2053  */
2054 enum {
2055         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2056         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2057 };
2058
2059 /**
2060  * enum - mesh path selection metric identifier
2061  *
2062  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2063  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2064  *      specified in a vendor specific information element
2065  */
2066 enum {
2067         IEEE80211_PATH_METRIC_AIRTIME = 1,
2068         IEEE80211_PATH_METRIC_VENDOR = 255,
2069 };
2070
2071 /**
2072  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2073  *
2074  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2075  *
2076  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2077  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2078  *      this value
2079  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2080  *      the proactive PREQ with proactive PREP subfield set to 0
2081  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2082  *      supports the proactive PREQ with proactive PREP subfield set to 1
2083  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2084  *      the proactive RANN
2085  */
2086 enum ieee80211_root_mode_identifier {
2087         IEEE80211_ROOTMODE_NO_ROOT = 0,
2088         IEEE80211_ROOTMODE_ROOT = 1,
2089         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2090         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2091         IEEE80211_PROACTIVE_RANN = 4,
2092 };
2093
2094 /*
2095  * IEEE 802.11-2007 7.3.2.9 Country information element
2096  *
2097  * Minimum length is 8 octets, ie len must be evenly
2098  * divisible by 2
2099  */
2100
2101 /* Although the spec says 8 I'm seeing 6 in practice */
2102 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2103
2104 /* The Country String field of the element shall be 3 octets in length */
2105 #define IEEE80211_COUNTRY_STRING_LEN    3
2106
2107 /*
2108  * For regulatory extension stuff see IEEE 802.11-2007
2109  * Annex I (page 1141) and Annex J (page 1147). Also
2110  * review 7.3.2.9.
2111  *
2112  * When dot11RegulatoryClassesRequired is true and the
2113  * first_channel/reg_extension_id is >= 201 then the IE
2114  * compromises of the 'ext' struct represented below:
2115  *
2116  *  - Regulatory extension ID - when generating IE this just needs
2117  *    to be monotonically increasing for each triplet passed in
2118  *    the IE
2119  *  - Regulatory class - index into set of rules
2120  *  - Coverage class - index into air propagation time (Table 7-27),
2121  *    in microseconds, you can compute the air propagation time from
2122  *    the index by multiplying by 3, so index 10 yields a propagation
2123  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2124  *    yet. A value of 0 inicates air propagation of <= 1 us.
2125  *
2126  *  See also Table I.2 for Emission limit sets and table
2127  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2128  *  a reg_class to an emission limit set and behavior limit set.
2129  */
2130 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2131
2132 /*
2133  *  Channels numbers in the IE must be monotonically increasing
2134  *  if dot11RegulatoryClassesRequired is not true.
2135  *
2136  *  If dot11RegulatoryClassesRequired is true consecutive
2137  *  subband triplets following a regulatory triplet shall
2138  *  have monotonically increasing first_channel number fields.
2139  *
2140  *  Channel numbers shall not overlap.
2141  *
2142  *  Note that max_power is signed.
2143  */
2144 struct ieee80211_country_ie_triplet {
2145         union {
2146                 struct {
2147                         u8 first_channel;
2148                         u8 num_channels;
2149                         s8 max_power;
2150                 } __packed chans;
2151                 struct {
2152                         u8 reg_extension_id;
2153                         u8 reg_class;
2154                         u8 coverage_class;
2155                 } __packed ext;
2156         };
2157 } __packed;
2158
2159 enum ieee80211_timeout_interval_type {
2160         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2161         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2162         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2163 };
2164
2165 /**
2166  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2167  * @type: type, see &enum ieee80211_timeout_interval_type
2168  * @value: timeout interval value
2169  */
2170 struct ieee80211_timeout_interval_ie {
2171         u8 type;
2172         __le32 value;
2173 } __packed;
2174
2175 /* BACK action code */
2176 enum ieee80211_back_actioncode {
2177         WLAN_ACTION_ADDBA_REQ = 0,
2178         WLAN_ACTION_ADDBA_RESP = 1,
2179         WLAN_ACTION_DELBA = 2,
2180 };
2181
2182 /* BACK (block-ack) parties */
2183 enum ieee80211_back_parties {
2184         WLAN_BACK_RECIPIENT = 0,
2185         WLAN_BACK_INITIATOR = 1,
2186 };
2187
2188 /* SA Query action */
2189 enum ieee80211_sa_query_action {
2190         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2191         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2192 };
2193
2194
2195 /* cipher suite selectors */
2196 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2197 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2198 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2199 /* reserved:                            0x000FAC03 */
2200 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2201 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2202 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2203 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2204
2205 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2206
2207 /* AKM suite selectors */
2208 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2209 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2210 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
2211 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2212
2213 #define WLAN_MAX_KEY_LEN                32
2214
2215 #define WLAN_PMKID_LEN                  16
2216
2217 #define WLAN_OUI_WFA                    0x506f9a
2218 #define WLAN_OUI_TYPE_WFA_P2P           9
2219 #define WLAN_OUI_MICROSOFT              0x0050f2
2220 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2221 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2222 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2223
2224 /*
2225  * WMM/802.11e Tspec Element
2226  */
2227 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2228 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2229
2230 enum ieee80211_tspec_status_code {
2231         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2232         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2233 };
2234
2235 struct ieee80211_tspec_ie {
2236         u8 element_id;
2237         u8 len;
2238         u8 oui[3];
2239         u8 oui_type;
2240         u8 oui_subtype;
2241         u8 version;
2242         __le16 tsinfo;
2243         u8 tsinfo_resvd;
2244         __le16 nominal_msdu;
2245         __le16 max_msdu;
2246         __le32 min_service_int;
2247         __le32 max_service_int;
2248         __le32 inactivity_int;
2249         __le32 suspension_int;
2250         __le32 service_start_time;
2251         __le32 min_data_rate;
2252         __le32 mean_data_rate;
2253         __le32 peak_data_rate;
2254         __le32 max_burst_size;
2255         __le32 delay_bound;
2256         __le32 min_phy_rate;
2257         __le16 sba;
2258         __le16 medium_time;
2259 } __packed;
2260
2261 /**
2262  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2263  * @hdr: the frame
2264  *
2265  * The qos ctrl bytes come after the frame_control, duration, seq_num
2266  * and 3 or 4 addresses of length ETH_ALEN.
2267  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2268  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2269  */
2270 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2271 {
2272         if (ieee80211_has_a4(hdr->frame_control))
2273                 return (u8 *)hdr + 30;
2274         else
2275                 return (u8 *)hdr + 24;
2276 }
2277
2278 /**
2279  * ieee80211_get_SA - get pointer to SA
2280  * @hdr: the frame
2281  *
2282  * Given an 802.11 frame, this function returns the offset
2283  * to the source address (SA). It does not verify that the
2284  * header is long enough to contain the address, and the
2285  * header must be long enough to contain the frame control
2286  * field.
2287  */
2288 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2289 {
2290         if (ieee80211_has_a4(hdr->frame_control))
2291                 return hdr->addr4;
2292         if (ieee80211_has_fromds(hdr->frame_control))
2293                 return hdr->addr3;
2294         return hdr->addr2;
2295 }
2296
2297 /**
2298  * ieee80211_get_DA - get pointer to DA
2299  * @hdr: the frame
2300  *
2301  * Given an 802.11 frame, this function returns the offset
2302  * to the destination address (DA). It does not verify that
2303  * the header is long enough to contain the address, and the
2304  * header must be long enough to contain the frame control
2305  * field.
2306  */
2307 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2308 {
2309         if (ieee80211_has_tods(hdr->frame_control))
2310                 return hdr->addr3;
2311         else
2312                 return hdr->addr1;
2313 }
2314
2315 /**
2316  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2317  * @hdr: the frame (buffer must include at least the first octet of payload)
2318  */
2319 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2320 {
2321         if (ieee80211_is_disassoc(hdr->frame_control) ||
2322             ieee80211_is_deauth(hdr->frame_control))
2323                 return true;
2324
2325         if (ieee80211_is_action(hdr->frame_control)) {
2326                 u8 *category;
2327
2328                 /*
2329                  * Action frames, excluding Public Action frames, are Robust
2330                  * Management Frames. However, if we are looking at a Protected
2331                  * frame, skip the check since the data may be encrypted and
2332                  * the frame has already been found to be a Robust Management
2333                  * Frame (by the other end).
2334                  */
2335                 if (ieee80211_has_protected(hdr->frame_control))
2336                         return true;
2337                 category = ((u8 *) hdr) + 24;
2338                 return *category != WLAN_CATEGORY_PUBLIC &&
2339                         *category != WLAN_CATEGORY_HT &&
2340                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2341                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2342         }
2343
2344         return false;
2345 }
2346
2347 /**
2348  * ieee80211_is_public_action - check if frame is a public action frame
2349  * @hdr: the frame
2350  * @len: length of the frame
2351  */
2352 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2353                                               size_t len)
2354 {
2355         struct ieee80211_mgmt *mgmt = (void *)hdr;
2356
2357         if (len < IEEE80211_MIN_ACTION_SIZE)
2358                 return false;
2359         if (!ieee80211_is_action(hdr->frame_control))
2360                 return false;
2361         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2362 }
2363
2364 /**
2365  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2366  * @tu: the TUs
2367  */
2368 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2369 {
2370         return 1024 * tu;
2371 }
2372
2373 /**
2374  * ieee80211_check_tim - check if AID bit is set in TIM
2375  * @tim: the TIM IE
2376  * @tim_len: length of the TIM IE
2377  * @aid: the AID to look for
2378  */
2379 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2380                                        u8 tim_len, u16 aid)
2381 {
2382         u8 mask;
2383         u8 indexn0, indexn1, indexn2;
2384
2385         if (unlikely(!tim || tim_len < sizeof(*tim)))
2386                 return false;
2387
2388         aid &= 0x3fff;
2389         indexn0 = aid / 8;
2390         mask  = 1 << (aid & 7);
2391
2392         indexn1 = tim->bitmap_ctrl & 0xfe;
2393         indexn2 = tim_len + indexn1 - 4;
2394
2395         if (indexn0 < indexn1 || indexn0 > indexn2)
2396                 return false;
2397
2398         indexn0 -= indexn1;
2399
2400         return !!(tim->virtual_map[indexn0] & mask);
2401 }
2402
2403 /* convert time units */
2404 #define TU_TO_JIFFIES(x)       (usecs_to_jiffies((x) * 1024))
2405 #define TU_TO_EXP_TIME(x)      (jiffies + TU_TO_JIFFIES(x))
2406
2407 #endif /* __LINUX_IEEE80211_H */