include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #ifndef LINUX_IEEE80211_H
  16 #define LINUX_IEEE80211_H
  17
  18 #include <linux/types.h>
  19 #include <asm/byteorder.h>
  20
  21 /*
  22  * DS bit usage
  23  *
  24  * TA = transmitter address
  25  * RA = receiver address
  26  * DA = destination address
  27  * SA = source address
  28  *
  29  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  30  * -----------------------------------------------------------------
  31  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  32  *  0       1       DA      BSSID   SA      -       AP -> STA
  33  *  1       0       BSSID   SA      DA      -       AP <- STA
  34  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  35  */
  36
  37 #define FCS_LEN 4
  38
  39 #define IEEE80211_FCTL_VERS             0x0003
  40 #define IEEE80211_FCTL_FTYPE            0x000c
  41 #define IEEE80211_FCTL_STYPE            0x00f0
  42 #define IEEE80211_FCTL_TODS             0x0100
  43 #define IEEE80211_FCTL_FROMDS           0x0200
  44 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  45 #define IEEE80211_FCTL_RETRY            0x0800
  46 #define IEEE80211_FCTL_PM               0x1000
  47 #define IEEE80211_FCTL_MOREDATA         0x2000
  48 #define IEEE80211_FCTL_PROTECTED        0x4000
  49 #define IEEE80211_FCTL_ORDER            0x8000
  50 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  51
  52 #define IEEE80211_SCTL_FRAG             0x000F
  53 #define IEEE80211_SCTL_SEQ              0xFFF0
  54
  55 #define IEEE80211_FTYPE_MGMT            0x0000
  56 #define IEEE80211_FTYPE_CTL             0x0004
  57 #define IEEE80211_FTYPE_DATA            0x0008
  58 #define IEEE80211_FTYPE_EXT             0x000c
  59
  60 /* management */
  61 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  62 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  63 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  64 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  65 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  66 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  67 #define IEEE80211_STYPE_BEACON          0x0080
  68 #define IEEE80211_STYPE_ATIM            0x0090
  69 #define IEEE80211_STYPE_DISASSOC        0x00A0
  70 #define IEEE80211_STYPE_AUTH            0x00B0
  71 #define IEEE80211_STYPE_DEAUTH          0x00C0
  72 #define IEEE80211_STYPE_ACTION          0x00D0
  73
  74 /* control */
  75 #define IEEE80211_STYPE_CTL_EXT         0x0060
  76 #define IEEE80211_STYPE_BACK_REQ        0x0080
  77 #define IEEE80211_STYPE_BACK            0x0090
  78 #define IEEE80211_STYPE_PSPOLL          0x00A0
  79 #define IEEE80211_STYPE_RTS             0x00B0
  80 #define IEEE80211_STYPE_CTS             0x00C0
  81 #define IEEE80211_STYPE_ACK             0x00D0
  82 #define IEEE80211_STYPE_CFEND           0x00E0
  83 #define IEEE80211_STYPE_CFENDACK        0x00F0
  84
  85 /* data */
  86 #define IEEE80211_STYPE_DATA                    0x0000
  87 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  88 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  89 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  90 #define IEEE80211_STYPE_NULLFUNC                0x0040
  91 #define IEEE80211_STYPE_CFACK                   0x0050
  92 #define IEEE80211_STYPE_CFPOLL                  0x0060
  93 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  94 #define IEEE80211_STYPE_QOS_DATA                0x0080
  95 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  96 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  97 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  98 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  99 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 100 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 101 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 102
 103 /* extension, added by 802.11ad */
 104 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 105
 106 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 107 #define IEEE80211_CTL_EXT_POLL          0x2000
 108 #define IEEE80211_CTL_EXT_SPR           0x3000
 109 #define IEEE80211_CTL_EXT_GRANT 0x4000
 110 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 111 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 112 #define IEEE80211_CTL_EXT_SSW           0x8000
 113 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 114 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 115
 116 /* miscellaneous IEEE 802.11 constants */
 117 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 118 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 119 #define IEEE80211_MAX_AID               2007
 120 #define IEEE80211_MAX_TIM_LEN           251
 121 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 122    6.2.1.1.2.
 123
 124    802.11e clarifies the figure in section 7.1.2. The frame body is
 125    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 126 #define IEEE80211_MAX_DATA_LEN          2304
 127 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 128 #define IEEE80211_MAX_FRAME_LEN         2352
 129
 130 #define IEEE80211_MAX_SSID_LEN          32
 131
 132 #define IEEE80211_MAX_MESH_ID_LEN       32
 133
 134 #define IEEE80211_NUM_TIDS              16
 135
 136 #define IEEE80211_QOS_CTL_LEN           2
 137 /* 1d tag mask */
 138 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 139 /* TID mask */
 140 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 141 /* EOSP */
 142 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 143 /* ACK policy */
 144 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 145 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 146 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 147 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 148 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 149 /* A-MSDU 802.11n */
 150 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 151 /* Mesh Control 802.11s */
 152 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 153
 154 /* U-APSD queue for WMM IEs sent by AP */
 155 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 156 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 157
 158 /* U-APSD queues for WMM IEs sent by STA */
 159 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 160 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 161 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 162 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 163 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 164
 165 /* U-APSD max SP length for WMM IEs sent by STA */
 166 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 167 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 168 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 169 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 170 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 171 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 172
 173 #define IEEE80211_HT_CTL_LEN            4
 174
 175 struct ieee80211_hdr {
 176         __le16 frame_control;
 177         __le16 duration_id;
 178         u8 addr1[6];
 179         u8 addr2[6];
 180         u8 addr3[6];
 181         __le16 seq_ctrl;
 182         u8 addr4[6];
 183 } __attribute__ ((packed));
 184
 185 struct ieee80211_hdr_3addr {
 186         __le16 frame_control;
 187         __le16 duration_id;
 188         u8 addr1[6];
 189         u8 addr2[6];
 190         u8 addr3[6];
 191         __le16 seq_ctrl;
 192 } __attribute__ ((packed));
 193
 194 struct ieee80211_qos_hdr {
 195         __le16 frame_control;
 196         __le16 duration_id;
 197         u8 addr1[6];
 198         u8 addr2[6];
 199         u8 addr3[6];
 200         __le16 seq_ctrl;
 201         __le16 qos_ctrl;
 202 } __attribute__ ((packed));
 203
 204 /**
 205  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 206  * @fc: frame control bytes in little-endian byteorder
 207  */
 208 static inline int ieee80211_has_tods(__le16 fc)
 209 {
 210         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 211 }
 212
 213 /**
 214  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 215  * @fc: frame control bytes in little-endian byteorder
 216  */
 217 static inline int ieee80211_has_fromds(__le16 fc)
 218 {
 219         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 220 }
 221
 222 /**
 223  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 224  * @fc: frame control bytes in little-endian byteorder
 225  */
 226 static inline int ieee80211_has_a4(__le16 fc)
 227 {
 228         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 229         return (fc & tmp) == tmp;
 230 }
 231
 232 /**
 233  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 234  * @fc: frame control bytes in little-endian byteorder
 235  */
 236 static inline int ieee80211_has_morefrags(__le16 fc)
 237 {
 238         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 239 }
 240
 241 /**
 242  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 243  * @fc: frame control bytes in little-endian byteorder
 244  */
 245 static inline int ieee80211_has_retry(__le16 fc)
 246 {
 247         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 248 }
 249
 250 /**
 251  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 252  * @fc: frame control bytes in little-endian byteorder
 253  */
 254 static inline int ieee80211_has_pm(__le16 fc)
 255 {
 256         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 257 }
 258
 259 /**
 260  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 261  * @fc: frame control bytes in little-endian byteorder
 262  */
 263 static inline int ieee80211_has_moredata(__le16 fc)
 264 {
 265         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 266 }
 267
 268 /**
 269  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 270  * @fc: frame control bytes in little-endian byteorder
 271  */
 272 static inline int ieee80211_has_protected(__le16 fc)
 273 {
 274         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 275 }
 276
 277 /**
 278  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 279  * @fc: frame control bytes in little-endian byteorder
 280  */
 281 static inline int ieee80211_has_order(__le16 fc)
 282 {
 283         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 284 }
 285
 286 /**
 287  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 288  * @fc: frame control bytes in little-endian byteorder
 289  */
 290 static inline int ieee80211_is_mgmt(__le16 fc)
 291 {
 292         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 293                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 294 }
 295
 296 /**
 297  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 298  * @fc: frame control bytes in little-endian byteorder
 299  */
 300 static inline int ieee80211_is_ctl(__le16 fc)
 301 {
 302         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 303                cpu_to_le16(IEEE80211_FTYPE_CTL);
 304 }
 305
 306 /**
 307  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 308  * @fc: frame control bytes in little-endian byteorder
 309  */
 310 static inline int ieee80211_is_data(__le16 fc)
 311 {
 312         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 313                cpu_to_le16(IEEE80211_FTYPE_DATA);
 314 }
 315
 316 /**
 317  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 318  * @fc: frame control bytes in little-endian byteorder
 319  */
 320 static inline int ieee80211_is_data_qos(__le16 fc)
 321 {
 322         /*
 323          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 324          * to check the one bit
 325          */
 326         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 327                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 328 }
 329
 330 /**
 331  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 332  * @fc: frame control bytes in little-endian byteorder
 333  */
 334 static inline int ieee80211_is_data_present(__le16 fc)
 335 {
 336         /*
 337          * mask with 0x40 and test that that bit is clear to only return true
 338          * for the data-containing substypes.
 339          */
 340         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 341                cpu_to_le16(IEEE80211_FTYPE_DATA);
 342 }
 343
 344 /**
 345  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 346  * @fc: frame control bytes in little-endian byteorder
 347  */
 348 static inline int ieee80211_is_assoc_req(__le16 fc)
 349 {
 350         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 351                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 352 }
 353
 354 /**
 355  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 356  * @fc: frame control bytes in little-endian byteorder
 357  */
 358 static inline int ieee80211_is_assoc_resp(__le16 fc)
 359 {
 360         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 361                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 362 }
 363
 364 /**
 365  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 366  * @fc: frame control bytes in little-endian byteorder
 367  */
 368 static inline int ieee80211_is_reassoc_req(__le16 fc)
 369 {
 370         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 371                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 372 }
 373
 374 /**
 375  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 376  * @fc: frame control bytes in little-endian byteorder
 377  */
 378 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 379 {
 380         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 381                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 382 }
 383
 384 /**
 385  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 386  * @fc: frame control bytes in little-endian byteorder
 387  */
 388 static inline int ieee80211_is_probe_req(__le16 fc)
 389 {
 390         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 391                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 392 }
 393
 394 /**
 395  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 396  * @fc: frame control bytes in little-endian byteorder
 397  */
 398 static inline int ieee80211_is_probe_resp(__le16 fc)
 399 {
 400         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 401                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 402 }
 403
 404 /**
 405  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 406  * @fc: frame control bytes in little-endian byteorder
 407  */
 408 static inline int ieee80211_is_beacon(__le16 fc)
 409 {
 410         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 411                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 412 }
 413
 414 /**
 415  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 416  * @fc: frame control bytes in little-endian byteorder
 417  */
 418 static inline int ieee80211_is_atim(__le16 fc)
 419 {
 420         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 421                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 422 }
 423
 424 /**
 425  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 426  * @fc: frame control bytes in little-endian byteorder
 427  */
 428 static inline int ieee80211_is_disassoc(__le16 fc)
 429 {
 430         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 431                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 432 }
 433
 434 /**
 435  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 436  * @fc: frame control bytes in little-endian byteorder
 437  */
 438 static inline int ieee80211_is_auth(__le16 fc)
 439 {
 440         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 441                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 442 }
 443
 444 /**
 445  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 446  * @fc: frame control bytes in little-endian byteorder
 447  */
 448 static inline int ieee80211_is_deauth(__le16 fc)
 449 {
 450         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 451                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 452 }
 453
 454 /**
 455  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 456  * @fc: frame control bytes in little-endian byteorder
 457  */
 458 static inline int ieee80211_is_action(__le16 fc)
 459 {
 460         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 461                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 462 }
 463
 464 /**
 465  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 466  * @fc: frame control bytes in little-endian byteorder
 467  */
 468 static inline int ieee80211_is_back_req(__le16 fc)
 469 {
 470         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 471                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 472 }
 473
 474 /**
 475  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 476  * @fc: frame control bytes in little-endian byteorder
 477  */
 478 static inline int ieee80211_is_back(__le16 fc)
 479 {
 480         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 481                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 482 }
 483
 484 /**
 485  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 486  * @fc: frame control bytes in little-endian byteorder
 487  */
 488 static inline int ieee80211_is_pspoll(__le16 fc)
 489 {
 490         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 491                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 492 }
 493
 494 /**
 495  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 496  * @fc: frame control bytes in little-endian byteorder
 497  */
 498 static inline int ieee80211_is_rts(__le16 fc)
 499 {
 500         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 501                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 502 }
 503
 504 /**
 505  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 506  * @fc: frame control bytes in little-endian byteorder
 507  */
 508 static inline int ieee80211_is_cts(__le16 fc)
 509 {
 510         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 511                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 512 }
 513
 514 /**
 515  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 516  * @fc: frame control bytes in little-endian byteorder
 517  */
 518 static inline int ieee80211_is_ack(__le16 fc)
 519 {
 520         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 521                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 522 }
 523
 524 /**
 525  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 526  * @fc: frame control bytes in little-endian byteorder
 527  */
 528 static inline int ieee80211_is_cfend(__le16 fc)
 529 {
 530         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 531                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 532 }
 533
 534 /**
 535  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 536  * @fc: frame control bytes in little-endian byteorder
 537  */
 538 static inline int ieee80211_is_cfendack(__le16 fc)
 539 {
 540         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 541                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 542 }
 543
 544 /**
 545  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 546  * @fc: frame control bytes in little-endian byteorder
 547  */
 548 static inline int ieee80211_is_nullfunc(__le16 fc)
 549 {
 550         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 551                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 552 }
 553
 554 /**
 555  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 556  * @fc: frame control bytes in little-endian byteorder
 557  */
 558 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 559 {
 560         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 561                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 562 }
 563
 564 /**
 565  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 566  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 567  */
 568 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 569 {
 570         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 571 }
 572
 573 struct ieee80211s_hdr {
 574         u8 flags;
 575         u8 ttl;
 576         __le32 seqnum;
 577         u8 eaddr1[6];
 578         u8 eaddr2[6];
 579 } __attribute__ ((packed));
 580
 581 /* Mesh flags */
 582 #define MESH_FLAGS_AE_A4        0x1
 583 #define MESH_FLAGS_AE_A5_A6     0x2
 584 #define MESH_FLAGS_AE           0x3
 585 #define MESH_FLAGS_PS_DEEP      0x4
 586
 587 /**
 588  * enum ieee80211_preq_flags - mesh PREQ element flags
 589  *
 590  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 591  */
 592 enum ieee80211_preq_flags {
 593         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 594 };
 595
 596 /**
 597  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 598  *
 599  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 600  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 601  */
 602 enum ieee80211_preq_target_flags {
 603         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 604         IEEE80211_PREQ_USN_FLAG = 1<<2,
 605 };
 606
 607 /**
 608  * struct ieee80211_quiet_ie
 609  *
 610  * This structure refers to "Quiet information element"
 611  */
 612 struct ieee80211_quiet_ie {
 613         u8 count;
 614         u8 period;
 615         __le16 duration;
 616         __le16 offset;
 617 } __attribute__ ((packed));
 618
 619 /**
 620  * struct ieee80211_msrment_ie
 621  *
 622  * This structure refers to "Measurement Request/Report information element"
 623  */
 624 struct ieee80211_msrment_ie {
 625         u8 token;
 626         u8 mode;
 627         u8 type;
 628         u8 request[0];
 629 } __attribute__ ((packed));
 630
 631 /**
 632  * struct ieee80211_channel_sw_ie
 633  *
 634  * This structure refers to "Channel Switch Announcement information element"
 635  */
 636 struct ieee80211_channel_sw_ie {
 637         u8 mode;
 638         u8 new_ch_num;
 639         u8 count;
 640 } __attribute__ ((packed));
 641
 642 /**
 643  * struct ieee80211_tim
 644  *
 645  * This structure refers to "Traffic Indication Map information element"
 646  */
 647 struct ieee80211_tim_ie {
 648         u8 dtim_count;
 649         u8 dtim_period;
 650         u8 bitmap_ctrl;
 651         /* variable size: 1 - 251 bytes */
 652         u8 virtual_map[1];
 653 } __attribute__ ((packed));
 654
 655 /**
 656  * struct ieee80211_meshconf_ie
 657  *
 658  * This structure refers to "Mesh Configuration information element"
 659  */
 660 struct ieee80211_meshconf_ie {
 661         u8 meshconf_psel;
 662         u8 meshconf_pmetric;
 663         u8 meshconf_congest;
 664         u8 meshconf_synch;
 665         u8 meshconf_auth;
 666         u8 meshconf_form;
 667         u8 meshconf_cap;
 668 } __attribute__ ((packed));
 669
 670 /**
 671  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 672  *
 673  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 674  *      additional mesh peerings with other mesh STAs
 675  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 676  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 677  *      is ongoing
 678  */
 679 enum mesh_config_capab_flags {
 680         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 681         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 682         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 683 };
 684
 685 /**
 686  * struct ieee80211_rann_ie
 687  *
 688  * This structure refers to "Root Announcement information element"
 689  */
 690 struct ieee80211_rann_ie {
 691         u8 rann_flags;
 692         u8 rann_hopcount;
 693         u8 rann_ttl;
 694         u8 rann_addr[6];
 695         __le32 rann_seq;
 696         __le32 rann_interval;
 697         __le32 rann_metric;
 698 } __attribute__ ((packed));
 699
 700 enum ieee80211_rann_flags {
 701         RANN_FLAG_IS_GATE = 1 << 0,
 702 };
 703
 704 #define WLAN_SA_QUERY_TR_ID_LEN 2
 705
 706 struct ieee80211_mgmt {
 707         __le16 frame_control;
 708         __le16 duration;
 709         u8 da[6];
 710         u8 sa[6];
 711         u8 bssid[6];
 712         __le16 seq_ctrl;
 713         union {
 714                 struct {
 715                         __le16 auth_alg;
 716                         __le16 auth_transaction;
 717                         __le16 status_code;
 718                         /* possibly followed by Challenge text */
 719                         u8 variable[0];
 720                 } __attribute__ ((packed)) auth;
 721                 struct {
 722                         __le16 reason_code;
 723                 } __attribute__ ((packed)) deauth;
 724                 struct {
 725                         __le16 capab_info;
 726                         __le16 listen_interval;
 727                         /* followed by SSID and Supported rates */
 728                         u8 variable[0];
 729                 } __attribute__ ((packed)) assoc_req;
 730                 struct {
 731                         __le16 capab_info;
 732                         __le16 status_code;
 733                         __le16 aid;
 734                         /* followed by Supported rates */
 735                         u8 variable[0];
 736                 } __attribute__ ((packed)) assoc_resp, reassoc_resp;
 737                 struct {
 738                         __le16 capab_info;
 739                         __le16 listen_interval;
 740                         u8 current_ap[6];
 741                         /* followed by SSID and Supported rates */
 742                         u8 variable[0];
 743                 } __attribute__ ((packed)) reassoc_req;
 744                 struct {
 745                         __le16 reason_code;
 746                 } __attribute__ ((packed)) disassoc;
 747                 struct {
 748                         __le64 timestamp;
 749                         __le16 beacon_int;
 750                         __le16 capab_info;
 751                         /* followed by some of SSID, Supported rates,
 752                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 753                         u8 variable[0];
 754                 } __attribute__ ((packed)) beacon;
 755                 struct {
 756                         /* only variable items: SSID, Supported rates */
 757                         u8 variable[0];
 758                 } __attribute__ ((packed)) probe_req;
 759                 struct {
 760                         __le64 timestamp;
 761                         __le16 beacon_int;
 762                         __le16 capab_info;
 763                         /* followed by some of SSID, Supported rates,
 764                          * FH Params, DS Params, CF Params, IBSS Params */
 765                         u8 variable[0];
 766                 } __attribute__ ((packed)) probe_resp;
 767                 struct {
 768                         u8 category;
 769                         union {
 770                                 struct {
 771                                         u8 action_code;
 772                                         u8 dialog_token;
 773                                         u8 status_code;
 774                                         u8 variable[0];
 775                                 } __attribute__ ((packed)) wme_action;
 776                                 struct{
 777                                         u8 action_code;
 778                                         u8 element_id;
 779                                         u8 length;
 780                                         struct ieee80211_channel_sw_ie sw_elem;
 781                                 } __attribute__((packed)) chan_switch;
 782                                 struct{
 783                                         u8 action_code;
 784                                         u8 dialog_token;
 785                                         u8 element_id;
 786                                         u8 length;
 787                                         struct ieee80211_msrment_ie msr_elem;
 788                                 } __attribute__((packed)) measurement;
 789                                 struct{
 790                                         u8 action_code;
 791                                         u8 dialog_token;
 792                                         __le16 capab;
 793                                         __le16 timeout;
 794                                         __le16 start_seq_num;
 795                                 } __attribute__((packed)) addba_req;
 796                                 struct{
 797                                         u8 action_code;
 798                                         u8 dialog_token;
 799                                         __le16 status;
 800                                         __le16 capab;
 801                                         __le16 timeout;
 802                                 } __attribute__((packed)) addba_resp;
 803                                 struct{
 804                                         u8 action_code;
 805                                         __le16 params;
 806                                         __le16 reason_code;
 807                                 } __attribute__((packed)) delba;
 808                                 struct {
 809                                         u8 action_code;
 810                                         u8 variable[0];
 811                                 } __attribute__((packed)) self_prot;
 812                                 struct{
 813                                         u8 action_code;
 814                                         u8 variable[0];
 815                                 } __attribute__((packed)) mesh_action;
 816                                 struct {
 817                                         u8 action;
 818                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 819                                 } __attribute__ ((packed)) sa_query;
 820                                 struct {
 821                                         u8 action;
 822                                         u8 smps_control;
 823                                 } __attribute__ ((packed)) ht_smps;
 824                                 struct {
 825                                         u8 action_code;
 826                                         u8 dialog_token;
 827                                         __le16 capability;
 828                                         u8 variable[0];
 829                                 } __packed tdls_discover_resp;
 830                         } u;
 831                 } __attribute__ ((packed)) action;
 832         } u;
 833 } __attribute__ ((packed));
 834
 835 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
 836 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
 837
 838 /* mgmt header + 1 byte category code */
 839 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
 840
 841
 842 /* Management MIC information element (IEEE 802.11w) */
 843 struct ieee80211_mmie {
 844         u8 element_id;
 845         u8 length;
 846         __le16 key_id;
 847         u8 sequence_number[6];
 848         u8 mic[8];
 849 } __attribute__ ((packed));
 850
 851 struct ieee80211_vendor_ie {
 852         u8 element_id;
 853         u8 len;
 854         u8 oui[3];
 855         u8 oui_type;
 856 } __packed;
 857
 858 /* Control frames */
 859 struct ieee80211_rts {
 860         __le16 frame_control;
 861         __le16 duration;
 862         u8 ra[6];
 863         u8 ta[6];
 864 } __attribute__ ((packed));
 865
 866 struct ieee80211_cts {
 867         __le16 frame_control;
 868         __le16 duration;
 869         u8 ra[6];
 870 } __attribute__ ((packed));
 871
 872 struct ieee80211_pspoll {
 873         __le16 frame_control;
 874         __le16 aid;
 875         u8 bssid[6];
 876         u8 ta[6];
 877 } __attribute__ ((packed));
 878
 879 /* TDLS */
 880
 881 /* Link-id information element */
 882 struct ieee80211_tdls_lnkie {
 883         u8 ie_type; /* Link Identifier IE */
 884         u8 ie_len;
 885         u8 bssid[6];
 886         u8 init_sta[6];
 887         u8 resp_sta[6];
 888 } __packed;
 889
 890 struct ieee80211_tdls_data {
 891         u8 da[6];
 892         u8 sa[6];
 893         __be16 ether_type;
 894         u8 payload_type;
 895         u8 category;
 896         u8 action_code;
 897         union {
 898                 struct {
 899                         u8 dialog_token;
 900                         __le16 capability;
 901                         u8 variable[0];
 902                 } __packed setup_req;
 903                 struct {
 904                         __le16 status_code;
 905                         u8 dialog_token;
 906                         __le16 capability;
 907                         u8 variable[0];
 908                 } __packed setup_resp;
 909                 struct {
 910                         __le16 status_code;
 911                         u8 dialog_token;
 912                         u8 variable[0];
 913                 } __packed setup_cfm;
 914                 struct {
 915                         __le16 reason_code;
 916                         u8 variable[0];
 917                 } __packed teardown;
 918                 struct {
 919                         u8 dialog_token;
 920                         u8 variable[0];
 921                 } __packed discover_req;
 922         } u;
 923 } __packed;
 924
 925 /*
 926  * Peer-to-Peer IE attribute related definitions.
 927  */
 928 /**
 929  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
 930  */
 931 enum ieee80211_p2p_attr_id {
 932         IEEE80211_P2P_ATTR_STATUS = 0,
 933         IEEE80211_P2P_ATTR_MINOR_REASON,
 934         IEEE80211_P2P_ATTR_CAPABILITY,
 935         IEEE80211_P2P_ATTR_DEVICE_ID,
 936         IEEE80211_P2P_ATTR_GO_INTENT,
 937         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
 938         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
 939         IEEE80211_P2P_ATTR_GROUP_BSSID,
 940         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
 941         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
 942         IEEE80211_P2P_ATTR_MANAGABILITY,
 943         IEEE80211_P2P_ATTR_CHANNEL_LIST,
 944         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
 945         IEEE80211_P2P_ATTR_DEVICE_INFO,
 946         IEEE80211_P2P_ATTR_GROUP_INFO,
 947         IEEE80211_P2P_ATTR_GROUP_ID,
 948         IEEE80211_P2P_ATTR_INTERFACE,
 949         IEEE80211_P2P_ATTR_OPER_CHANNEL,
 950         IEEE80211_P2P_ATTR_INVITE_FLAGS,
 951         /* 19 - 220: Reserved */
 952         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
 953
 954         IEEE80211_P2P_ATTR_MAX
 955 };
 956
 957 /**
 958  * struct ieee80211_bar - HT Block Ack Request
 959  *
 960  * This structure refers to "HT BlockAckReq" as
 961  * described in 802.11n draft section 7.2.1.7.1
 962  */
 963 struct ieee80211_bar {
 964         __le16 frame_control;
 965         __le16 duration;
 966         __u8 ra[6];
 967         __u8 ta[6];
 968         __le16 control;
 969         __le16 start_seq_num;
 970 } __attribute__((packed));
 971
 972 /* 802.11 BAR control masks */
 973 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
 974 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
 975 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
 976 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
 977 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
 978
 979 #define IEEE80211_HT_MCS_MASK_LEN               10
 980
 981 /**
 982  * struct ieee80211_mcs_info - MCS information
 983  * @rx_mask: RX mask
 984  * @rx_highest: highest supported RX rate. If set represents
 985  *      the highest supported RX data rate in units of 1 Mbps.
 986  *      If this field is 0 this value should not be used to
 987  *      consider the highest RX data rate supported.
 988  * @tx_params: TX parameters
 989  */
 990 struct ieee80211_mcs_info {
 991         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
 992         __le16 rx_highest;
 993         u8 tx_params;
 994         u8 reserved[3];
 995 } __attribute__((packed));
 996
 997 /* 802.11n HT capability MSC set */
 998 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
 999 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1000 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1001 /* value 0 == 1 stream etc */
1002 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1003 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1004 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1005 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1006
1007 /*
1008  * 802.11n D5.0 20.3.5 / 20.6 says:
1009  * - indices 0 to 7 and 32 are single spatial stream
1010  * - 8 to 31 are multiple spatial streams using equal modulation
1011  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1012  * - remainder are multiple spatial streams using unequal modulation
1013  */
1014 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1015 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1016         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1017
1018 /**
1019  * struct ieee80211_ht_cap - HT capabilities
1020  *
1021  * This structure is the "HT capabilities element" as
1022  * described in 802.11n D5.0 7.3.2.57
1023  */
1024 struct ieee80211_ht_cap {
1025         __le16 cap_info;
1026         u8 ampdu_params_info;
1027
1028         /* 16 bytes MCS information */
1029         struct ieee80211_mcs_info mcs;
1030
1031         __le16 extended_ht_cap_info;
1032         __le32 tx_BF_cap_info;
1033         u8 antenna_selection_info;
1034 } __attribute__ ((packed));
1035
1036 /* 802.11n HT capabilities masks (for cap_info) */
1037 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1038 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1039 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1040 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1041 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1042 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1043 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1044 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1045 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1046 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1047 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1048 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1049 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1050 #define IEEE80211_HT_CAP_RESERVED               0x2000
1051 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1052 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1053
1054 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1055 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1056 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1057 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1058 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1059 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1060 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1061 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1062
1063 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1064 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1065 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1066 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1067
1068 /*
1069  * Maximum length of AMPDU that the STA can receive.
1070  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1071  */
1072 enum ieee80211_max_ampdu_length_exp {
1073         IEEE80211_HT_MAX_AMPDU_8K = 0,
1074         IEEE80211_HT_MAX_AMPDU_16K = 1,
1075         IEEE80211_HT_MAX_AMPDU_32K = 2,
1076         IEEE80211_HT_MAX_AMPDU_64K = 3
1077 };
1078
1079 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1080
1081 /* Minimum MPDU start spacing */
1082 enum ieee80211_min_mpdu_spacing {
1083         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1084         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1085         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1086         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1087         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1088         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1089         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1090         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1091 };
1092
1093 /**
1094  * struct ieee80211_ht_operation - HT operation IE
1095  *
1096  * This structure is the "HT operation element" as
1097  * described in 802.11n-2009 7.3.2.57
1098  */
1099 struct ieee80211_ht_operation {
1100         u8 primary_chan;
1101         u8 ht_param;
1102         __le16 operation_mode;
1103         __le16 stbc_param;
1104         u8 basic_set[16];
1105 } __attribute__ ((packed));
1106
1107 /* for ht_param */
1108 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1109 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1110 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1111 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1112 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1113 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1114
1115 /* for operation_mode */
1116 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1117 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1118 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1119 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1120 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1121 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1122 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1123
1124 /* for stbc_param */
1125 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1126 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1127 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1128 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1129 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1130 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1131
1132
1133 /* block-ack parameters */
1134 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1135 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1136 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1137 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1138 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1139
1140 /*
1141  * A-PMDU buffer sizes
1142  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1143  */
1144 #define IEEE80211_MIN_AMPDU_BUF 0x8
1145 #define IEEE80211_MAX_AMPDU_BUF 0x40
1146
1147
1148 /* Spatial Multiplexing Power Save Modes (for capability) */
1149 #define WLAN_HT_CAP_SM_PS_STATIC        0
1150 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1151 #define WLAN_HT_CAP_SM_PS_INVALID       2
1152 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1153
1154 /* for SM power control field lower two bits */
1155 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1156 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1157 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1158
1159 /**
1160  * struct ieee80211_vht_mcs_info - VHT MCS information
1161  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1162  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1163  *      STA can receive. Rate expressed in units of 1 Mbps.
1164  *      If this field is 0 this value should not be used to
1165  *      consider the highest RX data rate supported.
1166  *      The top 3 bits of this field are reserved.
1167  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1168  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1169  *      STA can transmit. Rate expressed in units of 1 Mbps.
1170  *      If this field is 0 this value should not be used to
1171  *      consider the highest TX data rate supported.
1172  *      The top 3 bits of this field are reserved.
1173  */
1174 struct ieee80211_vht_mcs_info {
1175         __le16 rx_mcs_map;
1176         __le16 rx_highest;
1177         __le16 tx_mcs_map;
1178         __le16 tx_highest;
1179 } __packed;
1180
1181 /**
1182  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1183  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1184  *      number of streams
1185  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1186  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1187  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1188  *
1189  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1190  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1191  * both split into 8 subfields by number of streams. These values indicate
1192  * which MCSes are supported for the number of streams the value appears
1193  * for.
1194  */
1195 enum ieee80211_vht_mcs_support {
1196         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1197         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1198         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1199         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1200 };
1201
1202 /**
1203  * struct ieee80211_vht_cap - VHT capabilities
1204  *
1205  * This structure is the "VHT capabilities element" as
1206  * described in 802.11ac D3.0 8.4.2.160
1207  * @vht_cap_info: VHT capability info
1208  * @supp_mcs: VHT MCS supported rates
1209  */
1210 struct ieee80211_vht_cap {
1211         __le32 vht_cap_info;
1212         struct ieee80211_vht_mcs_info supp_mcs;
1213 } __packed;
1214
1215 /**
1216  * struct ieee80211_vht_operation - VHT operation IE
1217  *
1218  * This structure is the "VHT operation element" as
1219  * described in 802.11ac D3.0 8.4.2.161
1220  * @chan_width: Operating channel width
1221  * @center_freq_seg1_idx: center freq segment 1 index
1222  * @center_freq_seg2_idx: center freq segment 2 index
1223  * @basic_mcs_set: VHT Basic MCS rate set
1224  */
1225 struct ieee80211_vht_operation {
1226         u8 chan_width;
1227         u8 center_freq_seg1_idx;
1228         u8 center_freq_seg2_idx;
1229         __le16 basic_mcs_set;
1230 } __packed;
1231
1232
1233 #define IEEE80211_VHT_MCS_ZERO_TO_SEVEN_SUPPORT 0
1234 #define IEEE80211_VHT_MCS_ZERO_TO_EIGHT_SUPPORT 1
1235 #define IEEE80211_VHT_MCS_ZERO_TO_NINE_SUPPORT  2
1236 #define IEEE80211_VHT_MCS_NOT_SUPPORTED 3
1237
1238 /* 802.11ac VHT Capabilities */
1239 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                0x00000000
1240 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                0x00000001
1241 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454               0x00000002
1242 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ              0x00000004
1243 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ     0x00000008
1244 #define IEEE80211_VHT_CAP_RXLDPC                              0x00000010
1245 #define IEEE80211_VHT_CAP_SHORT_GI_80                         0x00000020
1246 #define IEEE80211_VHT_CAP_SHORT_GI_160                        0x00000040
1247 #define IEEE80211_VHT_CAP_TXSTBC                              0x00000080
1248 #define IEEE80211_VHT_CAP_RXSTBC_1                            0x00000100
1249 #define IEEE80211_VHT_CAP_RXSTBC_2                            0x00000200
1250 #define IEEE80211_VHT_CAP_RXSTBC_3                            0x00000300
1251 #define IEEE80211_VHT_CAP_RXSTBC_4                            0x00000400
1252 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE               0x00000800
1253 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE               0x00001000
1254 #define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX             0x00006000
1255 #define IEEE80211_VHT_CAP_SOUNDING_DIMENTION_MAX              0x00030000
1256 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE               0x00080000
1257 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE               0x00100000
1258 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                         0x00200000
1259 #define IEEE80211_VHT_CAP_HTC_VHT                             0x00400000
1260 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT          0x00800000
1261 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB   0x08000000
1262 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB     0x0c000000
1263 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                  0x10000000
1264 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                  0x20000000
1265
1266 /* Authentication algorithms */
1267 #define WLAN_AUTH_OPEN 0
1268 #define WLAN_AUTH_SHARED_KEY 1
1269 #define WLAN_AUTH_FT 2
1270 #define WLAN_AUTH_SAE 3
1271 #define WLAN_AUTH_LEAP 128
1272
1273 #define WLAN_AUTH_CHALLENGE_LEN 128
1274
1275 #define WLAN_CAPABILITY_ESS             (1<<0)
1276 #define WLAN_CAPABILITY_IBSS            (1<<1)
1277
1278 /*
1279  * A mesh STA sets the ESS and IBSS capability bits to zero.
1280  * however, this holds true for p2p probe responses (in the p2p_find
1281  * phase) as well.
1282  */
1283 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1284         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1285
1286 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1287 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1288 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1289 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1290 #define WLAN_CAPABILITY_PBCC            (1<<6)
1291 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1292
1293 /* 802.11h */
1294 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1295 #define WLAN_CAPABILITY_QOS             (1<<9)
1296 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1297 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1298
1299 /* DMG (60gHz) 802.11ad */
1300 /* type - bits 0..1 */
1301 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1302 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1303 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1304
1305 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1306 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE (1<<3)
1307 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1308 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1309
1310 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1311 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1312
1313 /* measurement */
1314 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1315 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1316 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1317
1318 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1319 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1320 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1321
1322 /* 802.11g ERP information element */
1323 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1324 #define WLAN_ERP_USE_PROTECTION (1<<1)
1325 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1326
1327 /* WLAN_ERP_BARKER_PREAMBLE values */
1328 enum {
1329         WLAN_ERP_PREAMBLE_SHORT = 0,
1330         WLAN_ERP_PREAMBLE_LONG = 1,
1331 };
1332
1333 /* Band ID, 802.11ad #8.4.1.45 */
1334 enum {
1335         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1336         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1337         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1338         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1339         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1340         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1341 };
1342
1343 /* Status codes */
1344 enum ieee80211_statuscode {
1345         WLAN_STATUS_SUCCESS = 0,
1346         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1347         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1348         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1349         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1350         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1351         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1352         WLAN_STATUS_CHALLENGE_FAIL = 15,
1353         WLAN_STATUS_AUTH_TIMEOUT = 16,
1354         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1355         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1356         /* 802.11b */
1357         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1358         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1359         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1360         /* 802.11h */
1361         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1362         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1363         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1364         /* 802.11g */
1365         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1366         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1367         /* 802.11w */
1368         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1369         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1370         /* 802.11i */
1371         WLAN_STATUS_INVALID_IE = 40,
1372         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1373         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1374         WLAN_STATUS_INVALID_AKMP = 43,
1375         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1376         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1377         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1378         /* 802.11e */
1379         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1380         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1381         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1382         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1383         WLAN_STATUS_REQUEST_DECLINED = 37,
1384         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1385         WLAN_STATUS_CHANGE_TSPEC = 39,
1386         WLAN_STATUS_WAIT_TS_DELAY = 47,
1387         WLAN_STATUS_NO_DIRECT_LINK = 48,
1388         WLAN_STATUS_STA_NOT_PRESENT = 49,
1389         WLAN_STATUS_STA_NOT_QSTA = 50,
1390         /* 802.11s */
1391         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1392         WLAN_STATUS_FCG_NOT_SUPP = 78,
1393         WLAN_STATUS_STA_NO_TBTT = 78,
1394         /* 802.11ad */
1395         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1396         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1397         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1398         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1399         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1400         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1401         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1402         WLAN_STATUS_REJECT_DSE_BAND = 96,
1403         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1404         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1405 };
1406
1407
1408 /* Reason codes */
1409 enum ieee80211_reasoncode {
1410         WLAN_REASON_UNSPECIFIED = 1,
1411         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1412         WLAN_REASON_DEAUTH_LEAVING = 3,
1413         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1414         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1415         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1416         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1417         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1418         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1419         /* 802.11h */
1420         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1421         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1422         /* 802.11i */
1423         WLAN_REASON_INVALID_IE = 13,
1424         WLAN_REASON_MIC_FAILURE = 14,
1425         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1426         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1427         WLAN_REASON_IE_DIFFERENT = 17,
1428         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1429         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1430         WLAN_REASON_INVALID_AKMP = 20,
1431         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1432         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1433         WLAN_REASON_IEEE8021X_FAILED = 23,
1434         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1435         /* 802.11e */
1436         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1437         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1438         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1439         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1440         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1441         WLAN_REASON_QSTA_NOT_USE = 37,
1442         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1443         WLAN_REASON_QSTA_TIMEOUT = 39,
1444         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1445         /* 802.11s */
1446         WLAN_REASON_MESH_PEER_CANCELED = 52,
1447         WLAN_REASON_MESH_MAX_PEERS = 53,
1448         WLAN_REASON_MESH_CONFIG = 54,
1449         WLAN_REASON_MESH_CLOSE = 55,
1450         WLAN_REASON_MESH_MAX_RETRIES = 56,
1451         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1452         WLAN_REASON_MESH_INVALID_GTK = 58,
1453         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1454         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1455         WLAN_REASON_MESH_PATH_ERROR = 61,
1456         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1457         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1458         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1459         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1460         WLAN_REASON_MESH_CHAN = 66,
1461 };
1462
1463
1464 /* Information Element IDs */
1465 enum ieee80211_eid {
1466         WLAN_EID_SSID = 0,
1467         WLAN_EID_SUPP_RATES = 1,
1468         WLAN_EID_FH_PARAMS = 2,
1469         WLAN_EID_DS_PARAMS = 3,
1470         WLAN_EID_CF_PARAMS = 4,
1471         WLAN_EID_TIM = 5,
1472         WLAN_EID_IBSS_PARAMS = 6,
1473         WLAN_EID_CHALLENGE = 16,
1474
1475         WLAN_EID_COUNTRY = 7,
1476         WLAN_EID_HP_PARAMS = 8,
1477         WLAN_EID_HP_TABLE = 9,
1478         WLAN_EID_REQUEST = 10,
1479
1480         WLAN_EID_QBSS_LOAD = 11,
1481         WLAN_EID_EDCA_PARAM_SET = 12,
1482         WLAN_EID_TSPEC = 13,
1483         WLAN_EID_TCLAS = 14,
1484         WLAN_EID_SCHEDULE = 15,
1485         WLAN_EID_TS_DELAY = 43,
1486         WLAN_EID_TCLAS_PROCESSING = 44,
1487         WLAN_EID_QOS_CAPA = 46,
1488         /* 802.11z */
1489         WLAN_EID_LINK_ID = 101,
1490         /* 802.11s */
1491         WLAN_EID_MESH_CONFIG = 113,
1492         WLAN_EID_MESH_ID = 114,
1493         WLAN_EID_LINK_METRIC_REPORT = 115,
1494         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1495         WLAN_EID_PEER_MGMT = 117,
1496         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1497         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1498         WLAN_EID_BEACON_TIMING = 120,
1499         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1500         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1501         WLAN_EID_MCCAOP_ADVERT = 123,
1502         WLAN_EID_MCCAOP_TEARDOWN = 124,
1503         WLAN_EID_GANN = 125,
1504         WLAN_EID_RANN = 126,
1505         WLAN_EID_PREQ = 130,
1506         WLAN_EID_PREP = 131,
1507         WLAN_EID_PERR = 132,
1508         WLAN_EID_PXU = 137,
1509         WLAN_EID_PXUC = 138,
1510         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1511         WLAN_EID_MIC = 140,
1512
1513         WLAN_EID_PWR_CONSTRAINT = 32,
1514         WLAN_EID_PWR_CAPABILITY = 33,
1515         WLAN_EID_TPC_REQUEST = 34,
1516         WLAN_EID_TPC_REPORT = 35,
1517         WLAN_EID_SUPPORTED_CHANNELS = 36,
1518         WLAN_EID_CHANNEL_SWITCH = 37,
1519         WLAN_EID_MEASURE_REQUEST = 38,
1520         WLAN_EID_MEASURE_REPORT = 39,
1521         WLAN_EID_QUIET = 40,
1522         WLAN_EID_IBSS_DFS = 41,
1523
1524         WLAN_EID_ERP_INFO = 42,
1525         WLAN_EID_EXT_SUPP_RATES = 50,
1526
1527         WLAN_EID_HT_CAPABILITY = 45,
1528         WLAN_EID_HT_OPERATION = 61,
1529
1530         WLAN_EID_RSN = 48,
1531         WLAN_EID_MMIE = 76,
1532         WLAN_EID_VENDOR_SPECIFIC = 221,
1533         WLAN_EID_QOS_PARAMETER = 222,
1534
1535         WLAN_EID_AP_CHAN_REPORT = 51,
1536         WLAN_EID_NEIGHBOR_REPORT = 52,
1537         WLAN_EID_RCPI = 53,
1538         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1539         WLAN_EID_ANTENNA_INFO = 64,
1540         WLAN_EID_RSNI = 65,
1541         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1542         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1543         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1544         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1545         WLAN_EID_MULTIPLE_BSSID = 71,
1546         WLAN_EID_BSS_COEX_2040 = 72,
1547         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1548         WLAN_EID_EXT_CAPABILITY = 127,
1549
1550         WLAN_EID_MOBILITY_DOMAIN = 54,
1551         WLAN_EID_FAST_BSS_TRANSITION = 55,
1552         WLAN_EID_TIMEOUT_INTERVAL = 56,
1553         WLAN_EID_RIC_DATA = 57,
1554         WLAN_EID_RIC_DESCRIPTOR = 75,
1555
1556         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1557         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1558         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1559
1560         WLAN_EID_VHT_CAPABILITY = 191,
1561         WLAN_EID_VHT_OPERATION = 192,
1562
1563         /* 802.11ad */
1564         WLAN_EID_NON_TX_BSSID_CAP =  83,
1565         WLAN_EID_WAKEUP_SCHEDULE = 143,
1566         WLAN_EID_EXT_SCHEDULE = 144,
1567         WLAN_EID_STA_AVAILABILITY = 145,
1568         WLAN_EID_DMG_TSPEC = 146,
1569         WLAN_EID_DMG_AT = 147,
1570         WLAN_EID_DMG_CAP = 148,
1571         WLAN_EID_DMG_OPERATION = 151,
1572         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1573         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1574         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1575         WLAN_EID_AWAKE_WINDOW = 157,
1576         WLAN_EID_MULTI_BAND = 158,
1577         WLAN_EID_ADDBA_EXT = 159,
1578         WLAN_EID_NEXT_PCP_LIST = 160,
1579         WLAN_EID_PCP_HANDOVER = 161,
1580         WLAN_EID_DMG_LINK_MARGIN = 162,
1581         WLAN_EID_SWITCHING_STREAM = 163,
1582         WLAN_EID_SESSION_TRANSITION = 164,
1583         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1584         WLAN_EID_CLUSTER_REPORT = 166,
1585         WLAN_EID_RELAY_CAP = 167,
1586         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1587         WLAN_EID_BEAM_LINK_MAINT = 169,
1588         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1589         WLAN_EID_U_PID = 171,
1590         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1591         WLAN_EID_QUIET_PERIOD_REQ = 175,
1592         WLAN_EID_QUIET_PERIOD_RESP = 177,
1593         WLAN_EID_EPAC_POLICY = 182,
1594         WLAN_EID_CLISTER_TIME_OFF = 183,
1595         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1596 };
1597
1598 /* Action category code */
1599 enum ieee80211_category {
1600         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1601         WLAN_CATEGORY_QOS = 1,
1602         WLAN_CATEGORY_DLS = 2,
1603         WLAN_CATEGORY_BACK = 3,
1604         WLAN_CATEGORY_PUBLIC = 4,
1605         WLAN_CATEGORY_HT = 7,
1606         WLAN_CATEGORY_SA_QUERY = 8,
1607         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1608         WLAN_CATEGORY_TDLS = 12,
1609         WLAN_CATEGORY_MESH_ACTION = 13,
1610         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1611         WLAN_CATEGORY_SELF_PROTECTED = 15,
1612         WLAN_CATEGORY_DMG = 16,
1613         WLAN_CATEGORY_WMM = 17,
1614         WLAN_CATEGORY_FST = 18,
1615         WLAN_CATEGORY_UNPROT_DMG = 20,
1616         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1617         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1618 };
1619
1620 /* SPECTRUM_MGMT action code */
1621 enum ieee80211_spectrum_mgmt_actioncode {
1622         WLAN_ACTION_SPCT_MSR_REQ = 0,
1623         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1624         WLAN_ACTION_SPCT_TPC_REQ = 2,
1625         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1626         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1627 };
1628
1629 /* HT action codes */
1630 enum ieee80211_ht_actioncode {
1631         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1632         WLAN_HT_ACTION_SMPS = 1,
1633         WLAN_HT_ACTION_PSMP = 2,
1634         WLAN_HT_ACTION_PCO_PHASE = 3,
1635         WLAN_HT_ACTION_CSI = 4,
1636         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1637         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1638         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1639 };
1640
1641 /* Self Protected Action codes */
1642 enum ieee80211_self_protected_actioncode {
1643         WLAN_SP_RESERVED = 0,
1644         WLAN_SP_MESH_PEERING_OPEN = 1,
1645         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1646         WLAN_SP_MESH_PEERING_CLOSE = 3,
1647         WLAN_SP_MGK_INFORM = 4,
1648         WLAN_SP_MGK_ACK = 5,
1649 };
1650
1651 /* Mesh action codes */
1652 enum ieee80211_mesh_actioncode {
1653         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1654         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1655         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1656         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1657         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1658         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1659         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1660         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1661         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1662         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1663         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1664 };
1665
1666 /* Security key length */
1667 enum ieee80211_key_len {
1668         WLAN_KEY_LEN_WEP40 = 5,
1669         WLAN_KEY_LEN_WEP104 = 13,
1670         WLAN_KEY_LEN_CCMP = 16,
1671         WLAN_KEY_LEN_TKIP = 32,
1672         WLAN_KEY_LEN_AES_CMAC = 16,
1673 };
1674
1675 /* Public action codes */
1676 enum ieee80211_pub_actioncode {
1677         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
1678 };
1679
1680 /* TDLS action codes */
1681 enum ieee80211_tdls_actioncode {
1682         WLAN_TDLS_SETUP_REQUEST = 0,
1683         WLAN_TDLS_SETUP_RESPONSE = 1,
1684         WLAN_TDLS_SETUP_CONFIRM = 2,
1685         WLAN_TDLS_TEARDOWN = 3,
1686         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
1687         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
1688         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
1689         WLAN_TDLS_PEER_PSM_REQUEST = 7,
1690         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
1691         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
1692         WLAN_TDLS_DISCOVERY_REQUEST = 10,
1693 };
1694
1695 /*
1696  * TDLS capabililites to be enabled in the 5th byte of the
1697  * @WLAN_EID_EXT_CAPABILITY information element
1698  */
1699 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
1700 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
1701
1702 /* TDLS specific payload type in the LLC/SNAP header */
1703 #define WLAN_TDLS_SNAP_RFTYPE   0x2
1704
1705 /**
1706  * enum - mesh synchronization method identifier
1707  *
1708  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
1709  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
1710  *      that will be specified in a vendor specific information element
1711  */
1712 enum {
1713         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
1714         IEEE80211_SYNC_METHOD_VENDOR = 255,
1715 };
1716
1717 /**
1718  * enum - mesh path selection protocol identifier
1719  *
1720  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
1721  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
1722  *      be specified in a vendor specific information element
1723  */
1724 enum {
1725         IEEE80211_PATH_PROTOCOL_HWMP = 1,
1726         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
1727 };
1728
1729 /**
1730  * enum - mesh path selection metric identifier
1731  *
1732  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
1733  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
1734  *      specified in a vendor specific information element
1735  */
1736 enum {
1737         IEEE80211_PATH_METRIC_AIRTIME = 1,
1738         IEEE80211_PATH_METRIC_VENDOR = 255,
1739 };
1740
1741 /**
1742  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
1743  *
1744  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
1745  *
1746  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
1747  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
1748  *      this value
1749  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
1750  *      the proactive PREQ with proactive PREP subfield set to 0
1751  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
1752  *      supports the proactive PREQ with proactive PREP subfield set to 1
1753  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
1754  *      the proactive RANN
1755  */
1756 enum ieee80211_root_mode_identifier {
1757         IEEE80211_ROOTMODE_NO_ROOT = 0,
1758         IEEE80211_ROOTMODE_ROOT = 1,
1759         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
1760         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
1761         IEEE80211_PROACTIVE_RANN = 4,
1762 };
1763
1764 /*
1765  * IEEE 802.11-2007 7.3.2.9 Country information element
1766  *
1767  * Minimum length is 8 octets, ie len must be evenly
1768  * divisible by 2
1769  */
1770
1771 /* Although the spec says 8 I'm seeing 6 in practice */
1772 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
1773
1774 /* The Country String field of the element shall be 3 octets in length */
1775 #define IEEE80211_COUNTRY_STRING_LEN    3
1776
1777 /*
1778  * For regulatory extension stuff see IEEE 802.11-2007
1779  * Annex I (page 1141) and Annex J (page 1147). Also
1780  * review 7.3.2.9.
1781  *
1782  * When dot11RegulatoryClassesRequired is true and the
1783  * first_channel/reg_extension_id is >= 201 then the IE
1784  * compromises of the 'ext' struct represented below:
1785  *
1786  *  - Regulatory extension ID - when generating IE this just needs
1787  *    to be monotonically increasing for each triplet passed in
1788  *    the IE
1789  *  - Regulatory class - index into set of rules
1790  *  - Coverage class - index into air propagation time (Table 7-27),
1791  *    in microseconds, you can compute the air propagation time from
1792  *    the index by multiplying by 3, so index 10 yields a propagation
1793  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
1794  *    yet. A value of 0 inicates air propagation of <= 1 us.
1795  *
1796  *  See also Table I.2 for Emission limit sets and table
1797  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
1798  *  a reg_class to an emission limit set and behavior limit set.
1799  */
1800 #define IEEE80211_COUNTRY_EXTENSION_ID 201
1801
1802 /*
1803  *  Channels numbers in the IE must be monotonically increasing
1804  *  if dot11RegulatoryClassesRequired is not true.
1805  *
1806  *  If dot11RegulatoryClassesRequired is true consecutive
1807  *  subband triplets following a regulatory triplet shall
1808  *  have monotonically increasing first_channel number fields.
1809  *
1810  *  Channel numbers shall not overlap.
1811  *
1812  *  Note that max_power is signed.
1813  */
1814 struct ieee80211_country_ie_triplet {
1815         union {
1816                 struct {
1817                         u8 first_channel;
1818                         u8 num_channels;
1819                         s8 max_power;
1820                 } __attribute__ ((packed)) chans;
1821                 struct {
1822                         u8 reg_extension_id;
1823                         u8 reg_class;
1824                         u8 coverage_class;
1825                 } __attribute__ ((packed)) ext;
1826         };
1827 } __attribute__ ((packed));
1828
1829 enum ieee80211_timeout_interval_type {
1830         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
1831         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
1832         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
1833 };
1834
1835 /* BACK action code */
1836 enum ieee80211_back_actioncode {
1837         WLAN_ACTION_ADDBA_REQ = 0,
1838         WLAN_ACTION_ADDBA_RESP = 1,
1839         WLAN_ACTION_DELBA = 2,
1840 };
1841
1842 /* BACK (block-ack) parties */
1843 enum ieee80211_back_parties {
1844         WLAN_BACK_RECIPIENT = 0,
1845         WLAN_BACK_INITIATOR = 1,
1846 };
1847
1848 /* SA Query action */
1849 enum ieee80211_sa_query_action {
1850         WLAN_ACTION_SA_QUERY_REQUEST = 0,
1851         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
1852 };
1853
1854
1855 /* cipher suite selectors */
1856 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
1857 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
1858 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
1859 /* reserved:                            0x000FAC03 */
1860 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
1861 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
1862 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
1863 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
1864
1865 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
1866
1867 /* AKM suite selectors */
1868 #define WLAN_AKM_SUITE_8021X            0x000FAC01
1869 #define WLAN_AKM_SUITE_PSK              0x000FAC02
1870 #define WLAN_AKM_SUITE_SAE                      0x000FAC08
1871 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
1872
1873 #define WLAN_MAX_KEY_LEN                32
1874
1875 #define WLAN_PMKID_LEN                  16
1876
1877 #define WLAN_OUI_WFA                    0x506f9a
1878 #define WLAN_OUI_TYPE_WFA_P2P           9
1879 #define WLAN_OUI_MICROSOFT              0x0050f2
1880 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
1881 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
1882 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
1883
1884 /*
1885  * WMM/802.11e Tspec Element
1886  */
1887 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
1888 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
1889
1890 enum ieee80211_tspec_status_code {
1891         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
1892         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
1893 };
1894
1895 struct ieee80211_tspec_ie {
1896         u8 element_id;
1897         u8 len;
1898         u8 oui[3];
1899         u8 oui_type;
1900         u8 oui_subtype;
1901         u8 version;
1902         __le16 tsinfo;
1903         u8 tsinfo_resvd;
1904         __le16 nominal_msdu;
1905         __le16 max_msdu;
1906         __le32 min_service_int;
1907         __le32 max_service_int;
1908         __le32 inactivity_int;
1909         __le32 suspension_int;
1910         __le32 service_start_time;
1911         __le32 min_data_rate;
1912         __le32 mean_data_rate;
1913         __le32 peak_data_rate;
1914         __le32 max_burst_size;
1915         __le32 delay_bound;
1916         __le32 min_phy_rate;
1917         __le16 sba;
1918         __le16 medium_time;
1919 } __packed;
1920
1921 /**
1922  * ieee80211_get_qos_ctl - get pointer to qos control bytes
1923  * @hdr: the frame
1924  *
1925  * The qos ctrl bytes come after the frame_control, duration, seq_num
1926  * and 3 or 4 addresses of length ETH_ALEN.
1927  * 3 addr: 2 + 2 + 2 + 3*6 = 24
1928  * 4 addr: 2 + 2 + 2 + 4*6 = 30
1929  */
1930 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1931 {
1932         if (ieee80211_has_a4(hdr->frame_control))
1933                 return (u8 *)hdr + 30;
1934         else
1935                 return (u8 *)hdr + 24;
1936 }
1937
1938 /**
1939  * ieee80211_get_SA - get pointer to SA
1940  * @hdr: the frame
1941  *
1942  * Given an 802.11 frame, this function returns the offset
1943  * to the source address (SA). It does not verify that the
1944  * header is long enough to contain the address, and the
1945  * header must be long enough to contain the frame control
1946  * field.
1947  */
1948 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
1949 {
1950         if (ieee80211_has_a4(hdr->frame_control))
1951                 return hdr->addr4;
1952         if (ieee80211_has_fromds(hdr->frame_control))
1953                 return hdr->addr3;
1954         return hdr->addr2;
1955 }
1956
1957 /**
1958  * ieee80211_get_DA - get pointer to DA
1959  * @hdr: the frame
1960  *
1961  * Given an 802.11 frame, this function returns the offset
1962  * to the destination address (DA). It does not verify that
1963  * the header is long enough to contain the address, and the
1964  * header must be long enough to contain the frame control
1965  * field.
1966  */
1967 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
1968 {
1969         if (ieee80211_has_tods(hdr->frame_control))
1970                 return hdr->addr3;
1971         else
1972                 return hdr->addr1;
1973 }
1974
1975 /**
1976  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
1977  * @hdr: the frame (buffer must include at least the first octet of payload)
1978  */
1979 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
1980 {
1981         if (ieee80211_is_disassoc(hdr->frame_control) ||
1982             ieee80211_is_deauth(hdr->frame_control))
1983                 return true;
1984
1985         if (ieee80211_is_action(hdr->frame_control)) {
1986                 u8 *category;
1987
1988                 /*
1989                  * Action frames, excluding Public Action frames, are Robust
1990                  * Management Frames. However, if we are looking at a Protected
1991                  * frame, skip the check since the data may be encrypted and
1992                  * the frame has already been found to be a Robust Management
1993                  * Frame (by the other end).
1994                  */
1995                 if (ieee80211_has_protected(hdr->frame_control))
1996                         return true;
1997                 category = ((u8 *) hdr) + 24;
1998                 return *category != WLAN_CATEGORY_PUBLIC &&
1999                         *category != WLAN_CATEGORY_HT &&
2000                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2001                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2002         }
2003
2004         return false;
2005 }
2006
2007 /**
2008  * ieee80211_is_public_action - check if frame is a public action frame
2009  * @hdr: the frame
2010  * @len: length of the frame
2011  */
2012 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2013                                               size_t len)
2014 {
2015         struct ieee80211_mgmt *mgmt = (void *)hdr;
2016
2017         if (len < IEEE80211_MIN_ACTION_SIZE)
2018                 return false;
2019         if (!ieee80211_is_action(hdr->frame_control))
2020                 return false;
2021         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2022 }
2023
2024 /**
2025  * ieee80211_dsss_chan_to_freq - get channel center frequency
2026  * @channel: the DSSS channel
2027  *
2028  * Convert IEEE802.11 DSSS channel to the center frequency (MHz).
2029  * Ref IEEE 802.11-2007 section 15.6
2030  */
2031 static inline int ieee80211_dsss_chan_to_freq(int channel)
2032 {
2033         if ((channel > 0) && (channel < 14))
2034                 return 2407 + (channel * 5);
2035         else if (channel == 14)
2036                 return 2484;
2037         else
2038                 return -1;
2039 }
2040
2041 /**
2042  * ieee80211_freq_to_dsss_chan - get channel
2043  * @freq: the frequency
2044  *
2045  * Convert frequency (MHz) to IEEE802.11 DSSS channel
2046  * Ref IEEE 802.11-2007 section 15.6
2047  *
2048  * This routine selects the channel with the closest center frequency.
2049  */
2050 static inline int ieee80211_freq_to_dsss_chan(int freq)
2051 {
2052         if ((freq >= 2410) && (freq < 2475))
2053                 return (freq - 2405) / 5;
2054         else if ((freq >= 2482) && (freq < 2487))
2055                 return 14;
2056         else
2057                 return -1;
2058 }
2059
2060 /**
2061  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2062  * @tu: the TUs
2063  */
2064 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2065 {
2066         return 1024 * tu;
2067 }
2068
2069 /**
2070  * ieee80211_check_tim - check if AID bit is set in TIM
2071  * @tim: the TIM IE
2072  * @tim_len: length of the TIM IE
2073  * @aid: the AID to look for
2074  */
2075 static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
2076                                        u8 tim_len, u16 aid)
2077 {
2078         u8 mask;
2079         u8 index, indexn1, indexn2;
2080
2081         if (unlikely(!tim || tim_len < sizeof(*tim)))
2082                 return false;
2083
2084         aid &= 0x3fff;
2085         index = aid / 8;
2086         mask  = 1 << (aid & 7);
2087
2088         indexn1 = tim->bitmap_ctrl & 0xfe;
2089         indexn2 = tim_len + indexn1 - 4;
2090
2091         if (index < indexn1 || index > indexn2)
2092                 return false;
2093
2094         index -= indexn1;
2095
2096         return !!(tim->virtual_map[index] & mask);
2097 }
2098
2099 #endif /* LINUX_IEEE80211_H */