include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef __LINUX_IEEE80211_H
  16 #define __LINUX_IEEE80211_H
  17
  18 /*
  19  * DS bit usage
  20  *
  21  * TA = transmitter address
  22  * RA = receiver address
  23  * DA = destination address
  24  * SA = source address
  25  *
  26  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  27  * -----------------------------------------------------------------
  28  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  29  *  0       1       DA      BSSID   SA      -       AP -> STA
  30  *  1       0       BSSID   SA      DA      -       AP <- STA
  31  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  32  */
  33
  34 #define FCS_LEN 4
  35
  36 #define IEEE80211_FCTL_VERS             0x0003
  37 #define IEEE80211_FCTL_FTYPE            0x000c
  38 #define IEEE80211_FCTL_STYPE            0x00f0
  39 #define IEEE80211_FCTL_TODS             0x0100
  40 #define IEEE80211_FCTL_FROMDS           0x0200
  41 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  42 #define IEEE80211_FCTL_RETRY            0x0800
  43 #define IEEE80211_FCTL_PM               0x1000
  44 #define IEEE80211_FCTL_MOREDATA         0x2000
  45 #define IEEE80211_FCTL_PROTECTED        0x4000
  46 #define IEEE80211_FCTL_ORDER            0x8000
  47 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  48
  49 #define IEEE80211_SCTL_FRAG             0x000F
  50 #define IEEE80211_SCTL_SEQ              0xFFF0
  51
  52 #define IEEE80211_FTYPE_MGMT            0x0000
  53 #define IEEE80211_FTYPE_CTL             0x0004
  54 #define IEEE80211_FTYPE_DATA            0x0008
  55 #define IEEE80211_FTYPE_EXT             0x000c
  56
  57 /* management */
  58 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  59 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  60 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  61 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  62 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  63 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  64 #define IEEE80211_STYPE_BEACON          0x0080
  65 #define IEEE80211_STYPE_ATIM            0x0090
  66 #define IEEE80211_STYPE_DISASSOC        0x00A0
  67 #define IEEE80211_STYPE_AUTH            0x00B0
  68 #define IEEE80211_STYPE_DEAUTH          0x00C0
  69 #define IEEE80211_STYPE_ACTION          0x00D0
  70
  71 /* control */
  72 #define IEEE80211_STYPE_CTL_EXT         0x0060
  73 #define IEEE80211_STYPE_BACK_REQ        0x0080
  74 #define IEEE80211_STYPE_BACK            0x0090
  75 #define IEEE80211_STYPE_PSPOLL          0x00A0
  76 #define IEEE80211_STYPE_RTS             0x00B0
  77 #define IEEE80211_STYPE_CTS             0x00C0
  78 #define IEEE80211_STYPE_ACK             0x00D0
  79 #define IEEE80211_STYPE_CFEND           0x00E0
  80 #define IEEE80211_STYPE_CFENDACK        0x00F0
  81
  82 /* data */
  83 #define IEEE80211_STYPE_DATA                    0x0000
  84 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  85 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  86 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  87 #define IEEE80211_STYPE_NULLFUNC                0x0040
  88 #define IEEE80211_STYPE_CFACK                   0x0050
  89 #define IEEE80211_STYPE_CFPOLL                  0x0060
  90 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  91 #define IEEE80211_STYPE_QOS_DATA                0x0080
  92 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  93 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  94 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  95 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  96 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
  97 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
  98 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
  99
 100 /* extension, added by 802.11ad */
 101 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 102
 103 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 104 #define IEEE80211_CTL_EXT_POLL          0x2000
 105 #define IEEE80211_CTL_EXT_SPR           0x3000
 106 #define IEEE80211_CTL_EXT_GRANT 0x4000
 107 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 108 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 109 #define IEEE80211_CTL_EXT_SSW           0x8000
 110 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 111 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 112
 113 /* miscellaneous IEEE 802.11 constants */
 114 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 115 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 116 #define IEEE80211_MAX_AID               2007
 117 #define IEEE80211_MAX_TIM_LEN           251
 118 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 119    6.2.1.1.2.
 120
 121    802.11e clarifies the figure in section 7.1.2. The frame body is
 122    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 123 #define IEEE80211_MAX_DATA_LEN          2304
 124 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 125 #define IEEE80211_MAX_FRAME_LEN         2352
 126
 127 #define IEEE80211_MAX_SSID_LEN          32
 128
 129 #define IEEE80211_MAX_MESH_ID_LEN       32
 130
 131 #define IEEE80211_NUM_TIDS              16
 132
 133 #define IEEE80211_QOS_CTL_LEN           2
 134 /* 1d tag mask */
 135 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 136 /* TID mask */
 137 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 138 /* EOSP */
 139 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 140 /* ACK policy */
 141 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 142 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 143 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 144 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 145 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 146 /* A-MSDU 802.11n */
 147 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 148 /* Mesh Control 802.11s */
 149 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 150
 151 /* U-APSD queue for WMM IEs sent by AP */
 152 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 153 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 154
 155 /* U-APSD queues for WMM IEs sent by STA */
 156 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 157 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 158 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 159 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 160 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 161
 162 /* U-APSD max SP length for WMM IEs sent by STA */
 163 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 164 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 165 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 166 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 167 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 168 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 169
 170 #define IEEE80211_HT_CTL_LEN            4
 171
 172 struct ieee80211_hdr {
 173         __le16 frame_control;
 174         __le16 duration_id;
 175         u8 addr1[6];
 176         u8 addr2[6];
 177         u8 addr3[6];
 178         __le16 seq_ctrl;
 179         u8 addr4[6];
 180 } __packed;
 181
 182 struct ieee80211_hdr_3addr {
 183         __le16 frame_control;
 184         __le16 duration_id;
 185         u8 addr1[6];
 186         u8 addr2[6];
 187         u8 addr3[6];
 188         __le16 seq_ctrl;
 189 } __packed;
 190
 191 struct ieee80211_qos_hdr {
 192         __le16 frame_control;
 193         __le16 duration_id;
 194         u8 addr1[6];
 195         u8 addr2[6];
 196         u8 addr3[6];
 197         __le16 seq_ctrl;
 198         __le16 qos_ctrl;
 199 } __packed;
 200
 201 /**
 202  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 203  * @fc: frame control bytes in little-endian byteorder
 204  */
 205 static inline int ieee80211_has_tods(__le16 fc)
 206 {
 207         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 208 }
 209
 210 /**
 211  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 212  * @fc: frame control bytes in little-endian byteorder
 213  */
 214 static inline int ieee80211_has_fromds(__le16 fc)
 215 {
 216         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 217 }
 218
 219 /**
 220  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 221  * @fc: frame control bytes in little-endian byteorder
 222  */
 223 static inline int ieee80211_has_a4(__le16 fc)
 224 {
 225         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 226         return (fc & tmp) == tmp;
 227 }
 228
 229 /**
 230  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 231  * @fc: frame control bytes in little-endian byteorder
 232  */
 233 static inline int ieee80211_has_morefrags(__le16 fc)
 234 {
 235         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 236 }
 237
 238 /**
 239  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 240  * @fc: frame control bytes in little-endian byteorder
 241  */
 242 static inline int ieee80211_has_retry(__le16 fc)
 243 {
 244         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 245 }
 246
 247 /**
 248  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 249  * @fc: frame control bytes in little-endian byteorder
 250  */
 251 static inline int ieee80211_has_pm(__le16 fc)
 252 {
 253         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 254 }
 255
 256 /**
 257  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 258  * @fc: frame control bytes in little-endian byteorder
 259  */
 260 static inline int ieee80211_has_moredata(__le16 fc)
 261 {
 262         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 263 }
 264
 265 /**
 266  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 267  * @fc: frame control bytes in little-endian byteorder
 268  */
 269 static inline int ieee80211_has_protected(__le16 fc)
 270 {
 271         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 272 }
 273
 274 /**
 275  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 276  * @fc: frame control bytes in little-endian byteorder
 277  */
 278 static inline int ieee80211_has_order(__le16 fc)
 279 {
 280         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 281 }
 282
 283 /**
 284  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 285  * @fc: frame control bytes in little-endian byteorder
 286  */
 287 static inline int ieee80211_is_mgmt(__le16 fc)
 288 {
 289         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 290                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 291 }
 292
 293 /**
 294  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 295  * @fc: frame control bytes in little-endian byteorder
 296  */
 297 static inline int ieee80211_is_ctl(__le16 fc)
 298 {
 299         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 300                cpu_to_le16(IEEE80211_FTYPE_CTL);
 301 }
 302
 303 /**
 304  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 305  * @fc: frame control bytes in little-endian byteorder
 306  */
 307 static inline int ieee80211_is_data(__le16 fc)
 308 {
 309         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 310                cpu_to_le16(IEEE80211_FTYPE_DATA);
 311 }
 312
 313 /**
 314  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 315  * @fc: frame control bytes in little-endian byteorder
 316  */
 317 static inline int ieee80211_is_data_qos(__le16 fc)
 318 {
 319         /*
 320          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 321          * to check the one bit
 322          */
 323         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 324                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 325 }
 326
 327 /**
 328  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 329  * @fc: frame control bytes in little-endian byteorder
 330  */
 331 static inline int ieee80211_is_data_present(__le16 fc)
 332 {
 333         /*
 334          * mask with 0x40 and test that that bit is clear to only return true
 335          * for the data-containing substypes.
 336          */
 337         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 338                cpu_to_le16(IEEE80211_FTYPE_DATA);
 339 }
 340
 341 /**
 342  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 343  * @fc: frame control bytes in little-endian byteorder
 344  */
 345 static inline int ieee80211_is_assoc_req(__le16 fc)
 346 {
 347         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 348                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 349 }
 350
 351 /**
 352  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 353  * @fc: frame control bytes in little-endian byteorder
 354  */
 355 static inline int ieee80211_is_assoc_resp(__le16 fc)
 356 {
 357         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 358                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 359 }
 360
 361 /**
 362  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 363  * @fc: frame control bytes in little-endian byteorder
 364  */
 365 static inline int ieee80211_is_reassoc_req(__le16 fc)
 366 {
 367         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 368                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 369 }
 370
 371 /**
 372  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 373  * @fc: frame control bytes in little-endian byteorder
 374  */
 375 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 376 {
 377         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 378                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 379 }
 380
 381 /**
 382  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 383  * @fc: frame control bytes in little-endian byteorder
 384  */
 385 static inline int ieee80211_is_probe_req(__le16 fc)
 386 {
 387         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 388                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 389 }
 390
 391 /**
 392  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 393  * @fc: frame control bytes in little-endian byteorder
 394  */
 395 static inline int ieee80211_is_probe_resp(__le16 fc)
 396 {
 397         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 398                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 399 }
 400
 401 /**
 402  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 403  * @fc: frame control bytes in little-endian byteorder
 404  */
 405 static inline int ieee80211_is_beacon(__le16 fc)
 406 {
 407         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 408                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 409 }
 410
 411 /**
 412  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 413  * @fc: frame control bytes in little-endian byteorder
 414  */
 415 static inline int ieee80211_is_atim(__le16 fc)
 416 {
 417         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 418                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 419 }
 420
 421 /**
 422  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 423  * @fc: frame control bytes in little-endian byteorder
 424  */
 425 static inline int ieee80211_is_disassoc(__le16 fc)
 426 {
 427         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 428                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 429 }
 430
 431 /**
 432  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 433  * @fc: frame control bytes in little-endian byteorder
 434  */
 435 static inline int ieee80211_is_auth(__le16 fc)
 436 {
 437         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 438                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 439 }
 440
 441 /**
 442  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 443  * @fc: frame control bytes in little-endian byteorder
 444  */
 445 static inline int ieee80211_is_deauth(__le16 fc)
 446 {
 447         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 448                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 449 }
 450
 451 /**
 452  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 453  * @fc: frame control bytes in little-endian byteorder
 454  */
 455 static inline int ieee80211_is_action(__le16 fc)
 456 {
 457         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 458                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 459 }
 460
 461 /**
 462  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 463  * @fc: frame control bytes in little-endian byteorder
 464  */
 465 static inline int ieee80211_is_back_req(__le16 fc)
 466 {
 467         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 468                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 469 }
 470
 471 /**
 472  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 473  * @fc: frame control bytes in little-endian byteorder
 474  */
 475 static inline int ieee80211_is_back(__le16 fc)
 476 {
 477         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 478                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 479 }
 480
 481 /**
 482  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 483  * @fc: frame control bytes in little-endian byteorder
 484  */
 485 static inline int ieee80211_is_pspoll(__le16 fc)
 486 {
 487         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 488                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 489 }
 490
 491 /**
 492  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 493  * @fc: frame control bytes in little-endian byteorder
 494  */
 495 static inline int ieee80211_is_rts(__le16 fc)
 496 {
 497         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 498                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 499 }
 500
 501 /**
 502  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 503  * @fc: frame control bytes in little-endian byteorder
 504  */
 505 static inline int ieee80211_is_cts(__le16 fc)
 506 {
 507         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 508                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 509 }
 510
 511 /**
 512  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 513  * @fc: frame control bytes in little-endian byteorder
 514  */
 515 static inline int ieee80211_is_ack(__le16 fc)
 516 {
 517         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 518                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 519 }
 520
 521 /**
 522  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 523  * @fc: frame control bytes in little-endian byteorder
 524  */
 525 static inline int ieee80211_is_cfend(__le16 fc)
 526 {
 527         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 528                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 529 }
 530
 531 /**
 532  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 533  * @fc: frame control bytes in little-endian byteorder
 534  */
 535 static inline int ieee80211_is_cfendack(__le16 fc)
 536 {
 537         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 538                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 539 }
 540
 541 /**
 542  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 543  * @fc: frame control bytes in little-endian byteorder
 544  */
 545 static inline int ieee80211_is_nullfunc(__le16 fc)
 546 {
 547         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 548                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 549 }
 550
 551 /**
 552  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 553  * @fc: frame control bytes in little-endian byteorder
 554  */
 555 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 556 {
 557         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 558                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 559 }
 560
 561 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 562 {
 563         unsigned int hdrlen = 24;
 564
 565         if (ieee80211_has_a4(fc))
 566                 hdrlen = 30;
 567
 568         if (ieee80211_is_data_qos(fc)) {
 569                 hdrlen += IEEE80211_QOS_CTL_LEN;
 570                 if (ieee80211_has_order(fc))
 571                         hdrlen += IEEE80211_HT_CTL_LEN;
 572         }
 573
 574         return hdrlen;
 575 }
 576
 577 /**
 578  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 579  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 580  */
 581 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 582 {
 583         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 584 }
 585
 586 struct ieee80211s_hdr {
 587         u8 flags;
 588         u8 ttl;
 589         __le32 seqnum;
 590         u8 eaddr1[6];
 591         u8 eaddr2[6];
 592 } __packed;
 593
 594 /* Mesh flags */
 595 #define MESH_FLAGS_AE_A4        0x1
 596 #define MESH_FLAGS_AE_A5_A6     0x2
 597 #define MESH_FLAGS_AE           0x3
 598 #define MESH_FLAGS_PS_DEEP      0x4
 599
 600 /**
 601  * enum ieee80211_preq_flags - mesh PREQ element flags
 602  *
 603  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 604  */
 605 enum ieee80211_preq_flags {
 606         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 607 };
 608
 609 /**
 610  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 611  *
 612  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 613  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 614  */
 615 enum ieee80211_preq_target_flags {
 616         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 617         IEEE80211_PREQ_USN_FLAG = 1<<2,
 618 };
 619
 620 /**
 621  * struct ieee80211_quiet_ie
 622  *
 623  * This structure refers to "Quiet information element"
 624  */
 625 struct ieee80211_quiet_ie {
 626         u8 count;
 627         u8 period;
 628         __le16 duration;
 629         __le16 offset;
 630 } __packed;
 631
 632 /**
 633  * struct ieee80211_msrment_ie
 634  *
 635  * This structure refers to "Measurement Request/Report information element"
 636  */
 637 struct ieee80211_msrment_ie {
 638         u8 token;
 639         u8 mode;
 640         u8 type;
 641         u8 request[0];
 642 } __packed;
 643
 644 /**
 645  * struct ieee80211_channel_sw_ie
 646  *
 647  * This structure refers to "Channel Switch Announcement information element"
 648  */
 649 struct ieee80211_channel_sw_ie {
 650         u8 mode;
 651         u8 new_ch_num;
 652         u8 count;
 653 } __packed;
 654
 655 /**
 656  * struct ieee80211_tim
 657  *
 658  * This structure refers to "Traffic Indication Map information element"
 659  */
 660 struct ieee80211_tim_ie {
 661         u8 dtim_count;
 662         u8 dtim_period;
 663         u8 bitmap_ctrl;
 664         /* variable size: 1 - 251 bytes */
 665         u8 virtual_map[1];
 666 } __packed;
 667
 668 /**
 669  * struct ieee80211_meshconf_ie
 670  *
 671  * This structure refers to "Mesh Configuration information element"
 672  */
 673 struct ieee80211_meshconf_ie {
 674         u8 meshconf_psel;
 675         u8 meshconf_pmetric;
 676         u8 meshconf_congest;
 677         u8 meshconf_synch;
 678         u8 meshconf_auth;
 679         u8 meshconf_form;
 680         u8 meshconf_cap;
 681 } __packed;
 682
 683 /**
 684  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 685  *
 686  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 687  *      additional mesh peerings with other mesh STAs
 688  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 689  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 690  *      is ongoing
 691  */
 692 enum mesh_config_capab_flags {
 693         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 694         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 695         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 696 };
 697
 698 /**
 699  * struct ieee80211_rann_ie
 700  *
 701  * This structure refers to "Root Announcement information element"
 702  */
 703 struct ieee80211_rann_ie {
 704         u8 rann_flags;
 705         u8 rann_hopcount;
 706         u8 rann_ttl;
 707         u8 rann_addr[6];
 708         __le32 rann_seq;
 709         __le32 rann_interval;
 710         __le32 rann_metric;
 711 } __packed;
 712
 713 enum ieee80211_rann_flags {
 714         RANN_FLAG_IS_GATE = 1 << 0,
 715 };
 716
 717 enum ieee80211_ht_chanwidth_values {
 718         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 719         IEEE80211_HT_CHANWIDTH_ANY = 1,
 720 };
 721
 722 #define WLAN_SA_QUERY_TR_ID_LEN 2
 723
 724 struct ieee80211_mgmt {
 725         __le16 frame_control;
 726         __le16 duration;
 727         u8 da[6];
 728         u8 sa[6];
 729         u8 bssid[6];
 730         __le16 seq_ctrl;
 731         union {
 732                 struct {
 733                         __le16 auth_alg;
 734                         __le16 auth_transaction;
 735                         __le16 status_code;
 736                         /* possibly followed by Challenge text */
 737                         u8 variable[0];
 738                 } __packed auth;
 739                 struct {
 740                         __le16 reason_code;
 741                 } __packed deauth;
 742                 struct {
 743                         __le16 capab_info;
 744                         __le16 listen_interval;
 745                         /* followed by SSID and Supported rates */
 746                         u8 variable[0];
 747                 } __packed assoc_req;
 748                 struct {
 749                         __le16 capab_info;
 750                         __le16 status_code;
 751                         __le16 aid;
 752                         /* followed by Supported rates */
 753                         u8 variable[0];
 754                 } __packed assoc_resp, reassoc_resp;
 755                 struct {
 756                         __le16 capab_info;
 757                         __le16 listen_interval;
 758                         u8 current_ap[6];
 759                         /* followed by SSID and Supported rates */
 760                         u8 variable[0];
 761                 } __packed reassoc_req;
 762                 struct {
 763                         __le16 reason_code;
 764                 } __packed disassoc;
 765                 struct {
 766                         __le64 timestamp;
 767                         __le16 beacon_int;
 768                         __le16 capab_info;
 769                         /* followed by some of SSID, Supported rates,
 770                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 771                         u8 variable[0];
 772                 } __packed beacon;
 773                 struct {
 774                         /* only variable items: SSID, Supported rates */
 775                         u8 variable[0];
 776                 } __packed probe_req;
 777                 struct {
 778                         __le64 timestamp;
 779                         __le16 beacon_int;
 780                         __le16 capab_info;
 781                         /* followed by some of SSID, Supported rates,
 782                          * FH Params, DS Params, CF Params, IBSS Params */
 783                         u8 variable[0];
 784                 } __packed probe_resp;
 785                 struct {
 786                         u8 category;
 787                         union {
 788                                 struct {
 789                                         u8 action_code;
 790                                         u8 dialog_token;
 791                                         u8 status_code;
 792                                         u8 variable[0];
 793                                 } __packed wme_action;
 794                                 struct{
 795                                         u8 action_code;
 796                                         u8 element_id;
 797                                         u8 length;
 798                                         struct ieee80211_channel_sw_ie sw_elem;
 799                                 } __packed chan_switch;
 800                                 struct{
 801                                         u8 action_code;
 802                                         u8 dialog_token;
 803                                         u8 element_id;
 804                                         u8 length;
 805                                         struct ieee80211_msrment_ie msr_elem;
 806                                 } __packed measurement;
 807                                 struct{
 808                                         u8 action_code;
 809                                         u8 dialog_token;
 810                                         __le16 capab;
 811                                         __le16 timeout;
 812                                         __le16 start_seq_num;
 813                                 } __packed addba_req;
 814                                 struct{
 815                                         u8 action_code;
 816                                         u8 dialog_token;
 817                                         __le16 status;
 818                                         __le16 capab;
 819                                         __le16 timeout;
 820                                 } __packed addba_resp;
 821                                 struct{
 822                                         u8 action_code;
 823                                         __le16 params;
 824                                         __le16 reason_code;
 825                                 } __packed delba;
 826                                 struct {
 827                                         u8 action_code;
 828                                         u8 variable[0];
 829                                 } __packed self_prot;
 830                                 struct{
 831                                         u8 action_code;
 832                                         u8 variable[0];
 833                                 } __packed mesh_action;
 834                                 struct {
 835                                         u8 action;
 836                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 837                                 } __packed sa_query;
 838                                 struct {
 839                                         u8 action;
 840                                         u8 smps_control;
 841                                 } __packed ht_smps;
 842                                 struct {
 843                                         u8 action_code;
 844                                         u8 chanwidth;
 845                                 } __packed ht_notify_cw;
 846                                 struct {
 847                                         u8 action_code;
 848                                         u8 dialog_token;
 849                                         __le16 capability;
 850                                         u8 variable[0];
 851                                 } __packed tdls_discover_resp;
 852                         } u;
 853                 } __packed action;
 854         } u;
 855 } __packed;
 856
 857 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 858 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 859
 860 /* mgmt header + 1 byte category code */
 861 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 862
 863
 864 /* Management MIC information element (IEEE 802.11w) */
 865 struct ieee80211_mmie {
 866         u8 element_id;
 867         u8 length;
 868         __le16 key_id;
 869         u8 sequence_number[6];
 870         u8 mic[8];
 871 } __packed;
 872
 873 struct ieee80211_vendor_ie {
 874         u8 element_id;
 875         u8 len;
 876         u8 oui[3];
 877         u8 oui_type;
 878 } __packed;
 879
 880 /* Control frames */
 881 struct ieee80211_rts {
 882         __le16 frame_control;
 883         __le16 duration;
 884         u8 ra[6];
 885         u8 ta[6];
 886 } __packed;
 887
 888 struct ieee80211_cts {
 889         __le16 frame_control;
 890         __le16 duration;
 891         u8 ra[6];
 892 } __packed;
 893
 894 struct ieee80211_pspoll {
 895         __le16 frame_control;
 896         __le16 aid;
 897         u8 bssid[6];
 898         u8 ta[6];
 899 } __packed;
 900
 901 /* TDLS */
 902
 903 /* Link-id information element */
 904 struct ieee80211_tdls_lnkie {
 905         u8 ie_type; /* Link Identifier IE */
 906         u8 ie_len;
 907         u8 bssid[6];
 908         u8 init_sta[6];
 909         u8 resp_sta[6];
 910 } __packed;
 911
 912 struct ieee80211_tdls_data {
 913         u8 da[6];
 914         u8 sa[6];
 915         __be16 ether_type;
 916         u8 payload_type;
 917         u8 category;
 918         u8 action_code;
 919         union {
 920                 struct {
 921                         u8 dialog_token;
 922                         __le16 capability;
 923                         u8 variable[0];
 924                 } __packed setup_req;
 925                 struct {
 926                         __le16 status_code;
 927                         u8 dialog_token;
 928                         __le16 capability;
 929                         u8 variable[0];
 930                 } __packed setup_resp;
 931                 struct {
 932                         __le16 status_code;
 933                         u8 dialog_token;
 934                         u8 variable[0];
 935                 } __packed setup_cfm;
 936                 struct {
 937                         __le16 reason_code;
 938                         u8 variable[0];
 939                 } __packed teardown;
 940                 struct {
 941                         u8 dialog_token;
 942                         u8 variable[0];
 943                 } __packed discover_req;
 944         } u;
 945 } __packed;
 946
 947 /*
 948  * Peer-to-Peer IE attribute related definitions.
 949  */
 950 /**
 951  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
 952  */
 953 enum ieee80211_p2p_attr_id {
 954         IEEE80211_P2P_ATTR_STATUS = 0,
 955         IEEE80211_P2P_ATTR_MINOR_REASON,
 956         IEEE80211_P2P_ATTR_CAPABILITY,
 957         IEEE80211_P2P_ATTR_DEVICE_ID,
 958         IEEE80211_P2P_ATTR_GO_INTENT,
 959         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
 960         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
 961         IEEE80211_P2P_ATTR_GROUP_BSSID,
 962         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
 963         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
 964         IEEE80211_P2P_ATTR_MANAGABILITY,
 965         IEEE80211_P2P_ATTR_CHANNEL_LIST,
 966         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
 967         IEEE80211_P2P_ATTR_DEVICE_INFO,
 968         IEEE80211_P2P_ATTR_GROUP_INFO,
 969         IEEE80211_P2P_ATTR_GROUP_ID,
 970         IEEE80211_P2P_ATTR_INTERFACE,
 971         IEEE80211_P2P_ATTR_OPER_CHANNEL,
 972         IEEE80211_P2P_ATTR_INVITE_FLAGS,
 973         /* 19 - 220: Reserved */
 974         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
 975
 976         IEEE80211_P2P_ATTR_MAX
 977 };
 978
 979 /**
 980  * struct ieee80211_bar - HT Block Ack Request
 981  *
 982  * This structure refers to "HT BlockAckReq" as
 983  * described in 802.11n draft section 7.2.1.7.1
 984  */
 985 struct ieee80211_bar {
 986         __le16 frame_control;
 987         __le16 duration;
 988         __u8 ra[6];
 989         __u8 ta[6];
 990         __le16 control;
 991         __le16 start_seq_num;
 992 } __packed __aligned(4);
 993
 994 /* 802.11 BA(R) control masks */
 995 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
 996 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
 997 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
 998 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
 999 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1000
1001 /**
1002  * struct ieee80211_ba - HT Block Ack
1003  *
1004  * This structure refers to "HT BlockAck" as
1005  * described in 802.11n draft section 7.2.1.8.1
1006  */
1007 struct ieee80211_ba {
1008         __le16 frame_control;
1009         __le16 duration;
1010         u8 ra[6];
1011         u8 ta[6];
1012         __le16 control;
1013
1014         __le16 start_seq_num;
1015         u8 bitmap[8];
1016 } __packed;
1017
1018 #define IEEE80211_HT_MCS_MASK_LEN               10
1019
1020 /**
1021  * struct ieee80211_mcs_info - MCS information
1022  * @rx_mask: RX mask
1023  * @rx_highest: highest supported RX rate. If set represents
1024  *      the highest supported RX data rate in units of 1 Mbps.
1025  *      If this field is 0 this value should not be used to
1026  *      consider the highest RX data rate supported.
1027  * @tx_params: TX parameters
1028  */
1029 struct ieee80211_mcs_info {
1030         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1031         __le16 rx_highest;
1032         u8 tx_params;
1033         u8 reserved[3];
1034 } __packed;
1035
1036 /* 802.11n HT capability MSC set */
1037 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1038 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1039 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1040 /* value 0 == 1 stream etc */
1041 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1042 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1043 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1044 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1045
1046 /*
1047  * 802.11n D5.0 20.3.5 / 20.6 says:
1048  * - indices 0 to 7 and 32 are single spatial stream
1049  * - 8 to 31 are multiple spatial streams using equal modulation
1050  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1051  * - remainder are multiple spatial streams using unequal modulation
1052  */
1053 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1054 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1055         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1056
1057 /**
1058  * struct ieee80211_ht_cap - HT capabilities
1059  *
1060  * This structure is the "HT capabilities element" as
1061  * described in 802.11n D5.0 7.3.2.57
1062  */
1063 struct ieee80211_ht_cap {
1064         __le16 cap_info;
1065         u8 ampdu_params_info;
1066
1067         /* 16 bytes MCS information */
1068         struct ieee80211_mcs_info mcs;
1069
1070         __le16 extended_ht_cap_info;
1071         __le32 tx_BF_cap_info;
1072         u8 antenna_selection_info;
1073 } __packed;
1074
1075 /* 802.11n HT capabilities masks (for cap_info) */
1076 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1077 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1078 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1079 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1080 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1081 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1082 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1083 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1084 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1085 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1086 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1087 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1088 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1089 #define IEEE80211_HT_CAP_RESERVED               0x2000
1090 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1091 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1092
1093 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1094 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1095 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1096 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1097 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1098 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1099 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1100 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1101
1102 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1103 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1104 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1105 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1106
1107 /*
1108  * Maximum length of AMPDU that the STA can receive.
1109  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1110  */
1111 enum ieee80211_max_ampdu_length_exp {
1112         IEEE80211_HT_MAX_AMPDU_8K = 0,
1113         IEEE80211_HT_MAX_AMPDU_16K = 1,
1114         IEEE80211_HT_MAX_AMPDU_32K = 2,
1115         IEEE80211_HT_MAX_AMPDU_64K = 3
1116 };
1117
1118 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1119
1120 /* Minimum MPDU start spacing */
1121 enum ieee80211_min_mpdu_spacing {
1122         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1123         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1124         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1125         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1126         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1127         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1128         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1129         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1130 };
1131
1132 /**
1133  * struct ieee80211_ht_operation - HT operation IE
1134  *
1135  * This structure is the "HT operation element" as
1136  * described in 802.11n-2009 7.3.2.57
1137  */
1138 struct ieee80211_ht_operation {
1139         u8 primary_chan;
1140         u8 ht_param;
1141         __le16 operation_mode;
1142         __le16 stbc_param;
1143         u8 basic_set[16];
1144 } __packed;
1145
1146 /* for ht_param */
1147 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1148 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1149 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1150 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1151 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1152 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1153
1154 /* for operation_mode */
1155 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1156 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1157 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1158 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1159 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1160 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1161 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1162
1163 /* for stbc_param */
1164 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1165 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1166 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1167 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1168 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1169 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1170
1171
1172 /* block-ack parameters */
1173 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1174 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1175 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1176 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1177 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1178
1179 /*
1180  * A-PMDU buffer sizes
1181  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1182  */
1183 #define IEEE80211_MIN_AMPDU_BUF 0x8
1184 #define IEEE80211_MAX_AMPDU_BUF 0x40
1185
1186
1187 /* Spatial Multiplexing Power Save Modes (for capability) */
1188 #define WLAN_HT_CAP_SM_PS_STATIC        0
1189 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1190 #define WLAN_HT_CAP_SM_PS_INVALID       2
1191 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1192
1193 /* for SM power control field lower two bits */
1194 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1195 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1196 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1197
1198 /**
1199  * struct ieee80211_vht_mcs_info - VHT MCS information
1200  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1201  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1202  *      STA can receive. Rate expressed in units of 1 Mbps.
1203  *      If this field is 0 this value should not be used to
1204  *      consider the highest RX data rate supported.
1205  *      The top 3 bits of this field are reserved.
1206  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1207  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1208  *      STA can transmit. Rate expressed in units of 1 Mbps.
1209  *      If this field is 0 this value should not be used to
1210  *      consider the highest TX data rate supported.
1211  *      The top 3 bits of this field are reserved.
1212  */
1213 struct ieee80211_vht_mcs_info {
1214         __le16 rx_mcs_map;
1215         __le16 rx_highest;
1216         __le16 tx_mcs_map;
1217         __le16 tx_highest;
1218 } __packed;
1219
1220 /**
1221  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1222  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1223  *      number of streams
1224  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1225  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1226  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1227  *
1228  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1229  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1230  * both split into 8 subfields by number of streams. These values indicate
1231  * which MCSes are supported for the number of streams the value appears
1232  * for.
1233  */
1234 enum ieee80211_vht_mcs_support {
1235         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1236         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1237         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1238         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1239 };
1240
1241 /**
1242  * struct ieee80211_vht_cap - VHT capabilities
1243  *
1244  * This structure is the "VHT capabilities element" as
1245  * described in 802.11ac D3.0 8.4.2.160
1246  * @vht_cap_info: VHT capability info
1247  * @supp_mcs: VHT MCS supported rates
1248  */
1249 struct ieee80211_vht_cap {
1250         __le32 vht_cap_info;
1251         struct ieee80211_vht_mcs_info supp_mcs;
1252 } __packed;
1253
1254 /**
1255  * enum ieee80211_vht_chanwidth - VHT channel width
1256  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1257  *      determine the channel width (20 or 40 MHz)
1258  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1259  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1260  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1261  */
1262 enum ieee80211_vht_chanwidth {
1263         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1264         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1265         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1266         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1267 };
1268
1269 /**
1270  * struct ieee80211_vht_operation - VHT operation IE
1271  *
1272  * This structure is the "VHT operation element" as
1273  * described in 802.11ac D3.0 8.4.2.161
1274  * @chan_width: Operating channel width
1275  * @center_freq_seg1_idx: center freq segment 1 index
1276  * @center_freq_seg2_idx: center freq segment 2 index
1277  * @basic_mcs_set: VHT Basic MCS rate set
1278  */
1279 struct ieee80211_vht_operation {
1280         u8 chan_width;
1281         u8 center_freq_seg1_idx;
1282         u8 center_freq_seg2_idx;
1283         __le16 basic_mcs_set;
1284 } __packed;
1285
1286
1287 #define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
1288 #define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
1289 #define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
1290 #define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
1291
1292 /* 802.11ac VHT Capabilities */
1293 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1294 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1295 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1296 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1297 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1298 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1299 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1300 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1301 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1302 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1303 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1304 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1305 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1306 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1307 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1308 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX               0x00006000
1309 #define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX                0x00030000
1310 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1311 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1312 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1313 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1314 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1315 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1316                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1317 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1318 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1319 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1320 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1321
1322 /* Authentication algorithms */
1323 #define WLAN_AUTH_OPEN 0
1324 #define WLAN_AUTH_SHARED_KEY 1
1325 #define WLAN_AUTH_FT 2
1326 #define WLAN_AUTH_SAE 3
1327 #define WLAN_AUTH_LEAP 128
1328
1329 #define WLAN_AUTH_CHALLENGE_LEN 128
1330
1331 #define WLAN_CAPABILITY_ESS             (1<<0)
1332 #define WLAN_CAPABILITY_IBSS            (1<<1)
1333
1334 /*
1335  * A mesh STA sets the ESS and IBSS capability bits to zero.
1336  * however, this holds true for p2p probe responses (in the p2p_find
1337  * phase) as well.
1338  */
1339 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1340         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1341
1342 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1343 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1344 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1345 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1346 #define WLAN_CAPABILITY_PBCC            (1<<6)
1347 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1348
1349 /* 802.11h */
1350 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1351 #define WLAN_CAPABILITY_QOS             (1<<9)
1352 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1353 #define WLAN_CAPABILITY_APSD            (1<<11)
1354 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1355 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1356 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1357 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1358
1359 /* DMG (60gHz) 802.11ad */
1360 /* type - bits 0..1 */
1361 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1362 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1363 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1364 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1365
1366 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1367 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1368 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1369 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1370
1371 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1372 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1373
1374 /* measurement */
1375 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1376 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1377 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1378
1379 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1380 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1381 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1382
1383 /* 802.11g ERP information element */
1384 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1385 #define WLAN_ERP_USE_PROTECTION (1<<1)
1386 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1387
1388 /* WLAN_ERP_BARKER_PREAMBLE values */
1389 enum {
1390         WLAN_ERP_PREAMBLE_SHORT = 0,
1391         WLAN_ERP_PREAMBLE_LONG = 1,
1392 };
1393
1394 /* Band ID, 802.11ad #8.4.1.45 */
1395 enum {
1396         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1397         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1398         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1399         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1400         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1401         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1402 };
1403
1404 /* Status codes */
1405 enum ieee80211_statuscode {
1406         WLAN_STATUS_SUCCESS = 0,
1407         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1408         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1409         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1410         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1411         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1412         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1413         WLAN_STATUS_CHALLENGE_FAIL = 15,
1414         WLAN_STATUS_AUTH_TIMEOUT = 16,
1415         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1416         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1417         /* 802.11b */
1418         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1419         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1420         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1421         /* 802.11h */
1422         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1423         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1424         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1425         /* 802.11g */
1426         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1427         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1428         /* 802.11w */
1429         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1430         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1431         /* 802.11i */
1432         WLAN_STATUS_INVALID_IE = 40,
1433         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1434         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1435         WLAN_STATUS_INVALID_AKMP = 43,
1436         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1437         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1438         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1439         /* 802.11e */
1440         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1441         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1442         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1443         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1444         WLAN_STATUS_REQUEST_DECLINED = 37,
1445         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1446         WLAN_STATUS_CHANGE_TSPEC = 39,
1447         WLAN_STATUS_WAIT_TS_DELAY = 47,
1448         WLAN_STATUS_NO_DIRECT_LINK = 48,
1449         WLAN_STATUS_STA_NOT_PRESENT = 49,
1450         WLAN_STATUS_STA_NOT_QSTA = 50,
1451         /* 802.11s */
1452         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1453         WLAN_STATUS_FCG_NOT_SUPP = 78,
1454         WLAN_STATUS_STA_NO_TBTT = 78,
1455         /* 802.11ad */
1456         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1457         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1458         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1459         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1460         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1461         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1462         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1463         WLAN_STATUS_REJECT_DSE_BAND = 96,
1464         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1465         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1466 };
1467
1468
1469 /* Reason codes */
1470 enum ieee80211_reasoncode {
1471         WLAN_REASON_UNSPECIFIED = 1,
1472         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1473         WLAN_REASON_DEAUTH_LEAVING = 3,
1474         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1475         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1476         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1477         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1478         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1479         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1480         /* 802.11h */
1481         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1482         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1483         /* 802.11i */
1484         WLAN_REASON_INVALID_IE = 13,
1485         WLAN_REASON_MIC_FAILURE = 14,
1486         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1487         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1488         WLAN_REASON_IE_DIFFERENT = 17,
1489         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1490         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1491         WLAN_REASON_INVALID_AKMP = 20,
1492         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1493         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1494         WLAN_REASON_IEEE8021X_FAILED = 23,
1495         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1496         /* 802.11e */
1497         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1498         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1499         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1500         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1501         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1502         WLAN_REASON_QSTA_NOT_USE = 37,
1503         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1504         WLAN_REASON_QSTA_TIMEOUT = 39,
1505         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1506         /* 802.11s */
1507         WLAN_REASON_MESH_PEER_CANCELED = 52,
1508         WLAN_REASON_MESH_MAX_PEERS = 53,
1509         WLAN_REASON_MESH_CONFIG = 54,
1510         WLAN_REASON_MESH_CLOSE = 55,
1511         WLAN_REASON_MESH_MAX_RETRIES = 56,
1512         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1513         WLAN_REASON_MESH_INVALID_GTK = 58,
1514         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1515         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1516         WLAN_REASON_MESH_PATH_ERROR = 61,
1517         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1518         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1519         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1520         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1521         WLAN_REASON_MESH_CHAN = 66,
1522 };
1523
1524
1525 /* Information Element IDs */
1526 enum ieee80211_eid {
1527         WLAN_EID_SSID = 0,
1528         WLAN_EID_SUPP_RATES = 1,
1529         WLAN_EID_FH_PARAMS = 2,
1530         WLAN_EID_DS_PARAMS = 3,
1531         WLAN_EID_CF_PARAMS = 4,
1532         WLAN_EID_TIM = 5,
1533         WLAN_EID_IBSS_PARAMS = 6,
1534         WLAN_EID_CHALLENGE = 16,
1535
1536         WLAN_EID_COUNTRY = 7,
1537         WLAN_EID_HP_PARAMS = 8,
1538         WLAN_EID_HP_TABLE = 9,
1539         WLAN_EID_REQUEST = 10,
1540
1541         WLAN_EID_QBSS_LOAD = 11,
1542         WLAN_EID_EDCA_PARAM_SET = 12,
1543         WLAN_EID_TSPEC = 13,
1544         WLAN_EID_TCLAS = 14,
1545         WLAN_EID_SCHEDULE = 15,
1546         WLAN_EID_TS_DELAY = 43,
1547         WLAN_EID_TCLAS_PROCESSING = 44,
1548         WLAN_EID_QOS_CAPA = 46,
1549         /* 802.11z */
1550         WLAN_EID_LINK_ID = 101,
1551         /* 802.11s */
1552         WLAN_EID_MESH_CONFIG = 113,
1553         WLAN_EID_MESH_ID = 114,
1554         WLAN_EID_LINK_METRIC_REPORT = 115,
1555         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1556         WLAN_EID_PEER_MGMT = 117,
1557         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1558         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1559         WLAN_EID_BEACON_TIMING = 120,
1560         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1561         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1562         WLAN_EID_MCCAOP_ADVERT = 123,
1563         WLAN_EID_MCCAOP_TEARDOWN = 124,
1564         WLAN_EID_GANN = 125,
1565         WLAN_EID_RANN = 126,
1566         WLAN_EID_PREQ = 130,
1567         WLAN_EID_PREP = 131,
1568         WLAN_EID_PERR = 132,
1569         WLAN_EID_PXU = 137,
1570         WLAN_EID_PXUC = 138,
1571         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1572         WLAN_EID_MIC = 140,
1573
1574         WLAN_EID_PWR_CONSTRAINT = 32,
1575         WLAN_EID_PWR_CAPABILITY = 33,
1576         WLAN_EID_TPC_REQUEST = 34,
1577         WLAN_EID_TPC_REPORT = 35,
1578         WLAN_EID_SUPPORTED_CHANNELS = 36,
1579         WLAN_EID_CHANNEL_SWITCH = 37,
1580         WLAN_EID_MEASURE_REQUEST = 38,
1581         WLAN_EID_MEASURE_REPORT = 39,
1582         WLAN_EID_QUIET = 40,
1583         WLAN_EID_IBSS_DFS = 41,
1584
1585         WLAN_EID_ERP_INFO = 42,
1586         WLAN_EID_EXT_SUPP_RATES = 50,
1587
1588         WLAN_EID_HT_CAPABILITY = 45,
1589         WLAN_EID_HT_OPERATION = 61,
1590
1591         WLAN_EID_RSN = 48,
1592         WLAN_EID_MMIE = 76,
1593         WLAN_EID_VENDOR_SPECIFIC = 221,
1594         WLAN_EID_QOS_PARAMETER = 222,
1595
1596         WLAN_EID_AP_CHAN_REPORT = 51,
1597         WLAN_EID_NEIGHBOR_REPORT = 52,
1598         WLAN_EID_RCPI = 53,
1599         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1600         WLAN_EID_ANTENNA_INFO = 64,
1601         WLAN_EID_RSNI = 65,
1602         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1603         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1604         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1605         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1606         WLAN_EID_MULTIPLE_BSSID = 71,
1607         WLAN_EID_BSS_COEX_2040 = 72,
1608         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1609         WLAN_EID_EXT_CAPABILITY = 127,
1610
1611         WLAN_EID_MOBILITY_DOMAIN = 54,
1612         WLAN_EID_FAST_BSS_TRANSITION = 55,
1613         WLAN_EID_TIMEOUT_INTERVAL = 56,
1614         WLAN_EID_RIC_DATA = 57,
1615         WLAN_EID_RIC_DESCRIPTOR = 75,
1616
1617         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1618         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1619         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1620
1621         WLAN_EID_VHT_CAPABILITY = 191,
1622         WLAN_EID_VHT_OPERATION = 192,
1623
1624         /* 802.11ad */
1625         WLAN_EID_NON_TX_BSSID_CAP =  83,
1626         WLAN_EID_WAKEUP_SCHEDULE = 143,
1627         WLAN_EID_EXT_SCHEDULE = 144,
1628         WLAN_EID_STA_AVAILABILITY = 145,
1629         WLAN_EID_DMG_TSPEC = 146,
1630         WLAN_EID_DMG_AT = 147,
1631         WLAN_EID_DMG_CAP = 148,
1632         WLAN_EID_DMG_OPERATION = 151,
1633         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1634         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1635         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1636         WLAN_EID_AWAKE_WINDOW = 157,
1637         WLAN_EID_MULTI_BAND = 158,
1638         WLAN_EID_ADDBA_EXT = 159,
1639         WLAN_EID_NEXT_PCP_LIST = 160,
1640         WLAN_EID_PCP_HANDOVER = 161,
1641         WLAN_EID_DMG_LINK_MARGIN = 162,
1642         WLAN_EID_SWITCHING_STREAM = 163,
1643         WLAN_EID_SESSION_TRANSITION = 164,
1644         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1645         WLAN_EID_CLUSTER_REPORT = 166,
1646         WLAN_EID_RELAY_CAP = 167,
1647         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1648         WLAN_EID_BEAM_LINK_MAINT = 169,
1649         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1650         WLAN_EID_U_PID = 171,
1651         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1652         WLAN_EID_QUIET_PERIOD_REQ = 175,
1653         WLAN_EID_QUIET_PERIOD_RESP = 177,
1654         WLAN_EID_EPAC_POLICY = 182,
1655         WLAN_EID_CLISTER_TIME_OFF = 183,
1656         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1657 };
1658
1659 /* Action category code */
1660 enum ieee80211_category {
1661         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1662         WLAN_CATEGORY_QOS = 1,
1663         WLAN_CATEGORY_DLS = 2,
1664         WLAN_CATEGORY_BACK = 3,
1665         WLAN_CATEGORY_PUBLIC = 4,
1666         WLAN_CATEGORY_HT = 7,
1667         WLAN_CATEGORY_SA_QUERY = 8,
1668         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1669         WLAN_CATEGORY_TDLS = 12,
1670         WLAN_CATEGORY_MESH_ACTION = 13,
1671         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1672         WLAN_CATEGORY_SELF_PROTECTED = 15,
1673         WLAN_CATEGORY_DMG = 16,
1674         WLAN_CATEGORY_WMM = 17,
1675         WLAN_CATEGORY_FST = 18,
1676         WLAN_CATEGORY_UNPROT_DMG = 20,
1677         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1678         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1679 };
1680
1681 /* SPECTRUM_MGMT action code */
1682 enum ieee80211_spectrum_mgmt_actioncode {
1683         WLAN_ACTION_SPCT_MSR_REQ = 0,
1684         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1685         WLAN_ACTION_SPCT_TPC_REQ = 2,
1686         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1687         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1688 };
1689
1690 /* HT action codes */
1691 enum ieee80211_ht_actioncode {
1692         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1693         WLAN_HT_ACTION_SMPS = 1,
1694         WLAN_HT_ACTION_PSMP = 2,
1695         WLAN_HT_ACTION_PCO_PHASE = 3,
1696         WLAN_HT_ACTION_CSI = 4,
1697         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1698         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1699         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1700 };
1701
1702 /* Self Protected Action codes */
1703 enum ieee80211_self_protected_actioncode {
1704         WLAN_SP_RESERVED = 0,
1705         WLAN_SP_MESH_PEERING_OPEN = 1,
1706         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1707         WLAN_SP_MESH_PEERING_CLOSE = 3,
1708         WLAN_SP_MGK_INFORM = 4,
1709         WLAN_SP_MGK_ACK = 5,
1710 };
1711
1712 /* Mesh action codes */
1713 enum ieee80211_mesh_actioncode {
1714         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1715         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1716         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1717         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1718         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1719         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1720         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1721         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1722         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1723         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1724         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1725 };
1726
1727 /* Security key length */
1728 enum ieee80211_key_len {
1729         WLAN_KEY_LEN_WEP40 = 5,
1730         WLAN_KEY_LEN_WEP104 = 13,
1731         WLAN_KEY_LEN_CCMP = 16,
1732         WLAN_KEY_LEN_TKIP = 32,
1733         WLAN_KEY_LEN_AES_CMAC = 16,
1734 };
1735
1736 /* Public action codes */
1737 enum ieee80211_pub_actioncode {
1738         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1739 };
1740
1741 /* TDLS action codes */
1742 enum ieee80211_tdls_actioncode {
1743         WLAN_TDLS_SETUP_REQUEST = 0,
1744         WLAN_TDLS_SETUP_RESPONSE = 1,
1745         WLAN_TDLS_SETUP_CONFIRM = 2,
1746         WLAN_TDLS_TEARDOWN = 3,
1747         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1748         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1749         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1750         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1751         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1752         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1753         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1754 };
1755
1756 /*
1757  * TDLS capabililites to be enabled in the 5th byte of the
1758  * @WLAN_EID_EXT_CAPABILITY information element
1759  */
1760 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1761 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1762
1763 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
1764
1765 /* TDLS specific payload type in the LLC/SNAP header */
1766 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1767
1768 /**
1769  * enum - mesh synchronization method identifier
1770  *
1771  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1772  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1773  *      that will be specified in a vendor specific information element
1774  */
1775 enum {
1776         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1777         IEEE80211_SYNC_METHOD_VENDOR = 255,
1778 };
1779
1780 /**
1781  * enum - mesh path selection protocol identifier
1782  *
1783  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1784  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1785  *      be specified in a vendor specific information element
1786  */
1787 enum {
1788         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1789         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1790 };
1791
1792 /**
1793  * enum - mesh path selection metric identifier
1794  *
1795  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1796  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1797  *      specified in a vendor specific information element
1798  */
1799 enum {
1800         IEEE80211_PATH_METRIC_AIRTIME = 1,
1801         IEEE80211_PATH_METRIC_VENDOR = 255,
1802 };
1803
1804 /**
1805  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1806  *
1807  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1808  *
1809  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1810  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1811  *      this value
1812  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1813  *      the proactive PREQ with proactive PREP subfield set to 0
1814  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1815  *      supports the proactive PREQ with proactive PREP subfield set to 1
1816  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1817  *      the proactive RANN
1818  */
1819 enum ieee80211_root_mode_identifier {
1820         IEEE80211_ROOTMODE_NO_ROOT = 0,
1821         IEEE80211_ROOTMODE_ROOT = 1,
1822         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1823         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1824         IEEE80211_PROACTIVE_RANN = 4,
1825 };
1826
1827 /*
1828  * IEEE 802.11-2007 7.3.2.9 Country information element
1829  *
1830  * Minimum length is 8 octets, ie len must be evenly
1831  * divisible by 2
1832  */
1833
1834 /* Although the spec says 8 I'm seeing 6 in practice */
1835 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1836
1837 /* The Country String field of the element shall be 3 octets in length */
1838 #define IEEE80211_COUNTRY_STRING_LEN    3
1839
1840 /*
1841  * For regulatory extension stuff see IEEE 802.11-2007
1842  * Annex I (page 1141) and Annex J (page 1147). Also
1843  * review 7.3.2.9.
1844  *
1845  * When dot11RegulatoryClassesRequired is true and the
1846  * first_channel/reg_extension_id is >= 201 then the IE
1847  * compromises of the 'ext' struct represented below:
1848  *
1849  *  - Regulatory extension ID - when generating IE this just needs
1850  *    to be monotonically increasing for each triplet passed in
1851  *    the IE
1852  *  - Regulatory class - index into set of rules
1853  *  - Coverage class - index into air propagation time (Table 7-27),
1854  *    in microseconds, you can compute the air propagation time from
1855  *    the index by multiplying by 3, so index 10 yields a propagation
1856  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1857  *    yet. A value of 0 inicates air propagation of <= 1 us.
1858  *
1859  *  See also Table I.2 for Emission limit sets and table
1860  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1861  *  a reg_class to an emission limit set and behavior limit set.
1862  */
1863 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1864
1865 /*
1866  *  Channels numbers in the IE must be monotonically increasing
1867  *  if dot11RegulatoryClassesRequired is not true.
1868  *
1869  *  If dot11RegulatoryClassesRequired is true consecutive
1870  *  subband triplets following a regulatory triplet shall
1871  *  have monotonically increasing first_channel number fields.
1872  *
1873  *  Channel numbers shall not overlap.
1874  *
1875  *  Note that max_power is signed.
1876  */
1877 struct ieee80211_country_ie_triplet {
1878         union {
1879                 struct {
1880                         u8 first_channel;
1881                         u8 num_channels;
1882                         s8 max_power;
1883                 } __packed chans;
1884                 struct {
1885                         u8 reg_extension_id;
1886                         u8 reg_class;
1887                         u8 coverage_class;
1888                 } __packed ext;
1889         };
1890 } __packed;
1891
1892 enum ieee80211_timeout_interval_type {
1893         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1894         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1895         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1896 };
1897
1898 /* BACK action code */
1899 enum ieee80211_back_actioncode {
1900         WLAN_ACTION_ADDBA_REQ = 0,
1901         WLAN_ACTION_ADDBA_RESP = 1,
1902         WLAN_ACTION_DELBA = 2,
1903 };
1904
1905 /* BACK (block-ack) parties */
1906 enum ieee80211_back_parties {
1907         WLAN_BACK_RECIPIENT = 0,
1908         WLAN_BACK_INITIATOR = 1,
1909 };
1910
1911 /* SA Query action */
1912 enum ieee80211_sa_query_action {
1913         WLAN_ACTION_SA_QUERY_REQUEST = 0,
1914         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1915 };
1916
1917
1918 /* cipher suite selectors */
1919 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1920 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1921 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1922 /* reserved:                            0x000FAC03 */
1923 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1924 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1925 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1926 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
1927
1928 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
1929
1930 /* AKM suite selectors */
1931 #define WLAN_AKM_SUITE_8021X            0x000FAC01
1932 #define WLAN_AKM_SUITE_PSK              0x000FAC02
1933 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
1934 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
1935
1936 #define WLAN_MAX_KEY_LEN                32
1937
1938 #define WLAN_PMKID_LEN                  16
1939
1940 #define WLAN_OUI_WFA                    0x506f9a
1941 #define WLAN_OUI_TYPE_WFA_P2P           9
1942 #define WLAN_OUI_MICROSOFT              0x0050f2
1943 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
1944 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
1945 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
1946
1947 /*
1948  * WMM/802.11e Tspec Element
1949  */
1950 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
1951 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
1952
1953 enum ieee80211_tspec_status_code {
1954         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1955         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1956 };
1957
1958 struct ieee80211_tspec_ie {
1959         u8 element_id;
1960         u8 len;
1961         u8 oui[3];
1962         u8 oui_type;
1963         u8 oui_subtype;
1964         u8 version;
1965         __le16 tsinfo;
1966         u8 tsinfo_resvd;
1967         __le16 nominal_msdu;
1968         __le16 max_msdu;
1969         __le32 min_service_int;
1970         __le32 max_service_int;
1971         __le32 inactivity_int;
1972         __le32 suspension_int;
1973         __le32 service_start_time;
1974         __le32 min_data_rate;
1975         __le32 mean_data_rate;
1976         __le32 peak_data_rate;
1977         __le32 max_burst_size;
1978         __le32 delay_bound;
1979         __le32 min_phy_rate;
1980         __le16 sba;
1981         __le16 medium_time;
1982 } __packed;
1983
1984 /**
1985  * ieee80211_get_qos_ctl - get pointer to qos control bytes
1986  * @hdr: the frame
1987  *
1988  * The qos ctrl bytes come after the frame_control, duration, seq_num
1989  * and 3 or 4 addresses of length ETH_ALEN.
1990  * 3 addr: 2 + 2 + 2 + 3*6 = 24
1991  * 4 addr: 2 + 2 + 2 + 4*6 = 30
1992  */
1993 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1994 {
1995         if (ieee80211_has_a4(hdr->frame_control))
1996                 return (u8 *)hdr + 30;
1997         else
1998                 return (u8 *)hdr + 24;
1999 }
2000
2001 /**
2002  * ieee80211_get_SA - get pointer to SA
2003  * @hdr: the frame
2004  *
2005  * Given an 802.11 frame, this function returns the offset
2006  * to the source address (SA). It does not verify that the
2007  * header is long enough to contain the address, and the
2008  * header must be long enough to contain the frame control
2009  * field.
2010  */
2011 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2012 {
2013         if (ieee80211_has_a4(hdr->frame_control))
2014                 return hdr->addr4;
2015         if (ieee80211_has_fromds(hdr->frame_control))
2016                 return hdr->addr3;
2017         return hdr->addr2;
2018 }
2019
2020 /**
2021  * ieee80211_get_DA - get pointer to DA
2022  * @hdr: the frame
2023  *
2024  * Given an 802.11 frame, this function returns the offset
2025  * to the destination address (DA). It does not verify that
2026  * the header is long enough to contain the address, and the
2027  * header must be long enough to contain the frame control
2028  * field.
2029  */
2030 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2031 {
2032         if (ieee80211_has_tods(hdr->frame_control))
2033                 return hdr->addr3;
2034         else
2035                 return hdr->addr1;
2036 }
2037
2038 /**
2039  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2040  * @hdr: the frame (buffer must include at least the first octet of payload)
2041  */
2042 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2043 {
2044         if (ieee80211_is_disassoc(hdr->frame_control) ||
2045             ieee80211_is_deauth(hdr->frame_control))
2046                 return true;
2047
2048         if (ieee80211_is_action(hdr->frame_control)) {
2049                 u8 *category;
2050
2051                 /*
2052                  * Action frames, excluding Public Action frames, are Robust
2053                  * Management Frames. However, if we are looking at a Protected
2054                  * frame, skip the check since the data may be encrypted and
2055                  * the frame has already been found to be a Robust Management
2056                  * Frame (by the other end).
2057                  */
2058                 if (ieee80211_has_protected(hdr->frame_control))
2059                         return true;
2060                 category = ((u8 *) hdr) + 24;
2061                 return *category != WLAN_CATEGORY_PUBLIC &&
2062                         *category != WLAN_CATEGORY_HT &&
2063                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2064                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2065         }
2066
2067         return false;
2068 }
2069
2070 /**
2071  * ieee80211_is_public_action - check if frame is a public action frame
2072  * @hdr: the frame
2073  * @len: length of the frame
2074  */
2075 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2076                                               size_t len)
2077 {
2078         struct ieee80211_mgmt *mgmt = (void *)hdr;
2079
2080         if (len < IEEE80211_MIN_ACTION_SIZE)
2081                 return false;
2082         if (!ieee80211_is_action(hdr->frame_control))
2083                 return false;
2084         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2085 }
2086
2087 /**
2088  * ieee80211_dsss_chan_to_freq - get channel center frequency
2089  * @channel: the DSSS channel
2090  *
2091  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2092  * Ref IEEE 802.11-2007 section 15.6
2093  */
2094 static inline int ieee80211_dsss_chan_to_freq(int channel)
2095 {
2096         if ((channel > 0) && (channel < 14))
2097                 return 2407 + (channel * 5);
2098         else if (channel == 14)
2099                 return 2484;
2100         else
2101                 return -1;
2102 }
2103
2104 /**
2105  * ieee80211_freq_to_dsss_chan - get channel
2106  * @freq: the frequency
2107  *
2108  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2109  * Ref IEEE 802.11-2007 section 15.6
2110  *
2111  * This routine selects the channel with the closest center frequency.
2112  */
2113 static inline int ieee80211_freq_to_dsss_chan(int freq)
2114 {
2115         if ((freq >= 2410) && (freq < 2475))
2116                 return (freq - 2405) / 5;
2117         else if ((freq >= 2482) && (freq < 2487))
2118                 return 14;
2119         else
2120                 return -1;
2121 }
2122
2123 /**
2124  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2125  * @tu: the TUs
2126  */
2127 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2128 {
2129         return 1024 * tu;
2130 }
2131
2132 /**
2133  * ieee80211_check_tim - check if AID bit is set in TIM
2134  * @tim: the TIM IE
2135  * @tim_len: length of the TIM IE
2136  * @aid: the AID to look for
2137  */
2138 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2139                                        u8 tim_len, u16 aid)
2140 {
2141         u8 mask;
2142         u8 indexn0, indexn1, indexn2;
2143
2144         if (unlikely(!tim || tim_len < sizeof(*tim)))
2145                 return false;
2146
2147         aid &= 0x3fff;
2148         indexn0 = aid / 8;
2149         mask  = 1 << (aid & 7);
2150
2151         indexn1 = tim->bitmap_ctrl & 0xfe;
2152         indexn2 = tim_len + indexn1 - 4;
2153
2154         if (indexn0 < indexn1 || indexn0 > indexn2)
2155                 return false;
2156
2157         indexn0 -= indexn1;
2158
2159         return !!(tim->virtual_map[indexn0] & mask);
2160 }
2161
2162 #endif /* __LINUX_IEEE80211_H */