include/linux/ieee80211.h

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