kernel/include/linux/ieee80211.h

   1 /*
   2  * IEEE 802.11 defines
   3  *
   4  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   5  * <jkmaline@cc.hut.fi>
   6  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2005, Devicescape Software, Inc.
   8  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   9  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #ifndef LINUX_IEEE80211_H
  17 #define LINUX_IEEE80211_H
  18
  19 #include <linux/types.h>
  20 #include <linux/if_ether.h>
  21 #include <asm/byteorder.h>
  22 #include <asm/unaligned.h>
  23
  24 /*
  25  * DS bit usage
  26  *
  27  * TA = transmitter address
  28  * RA = receiver address
  29  * DA = destination address
  30  * SA = source address
  31  *
  32  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  33  * -----------------------------------------------------------------
  34  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  35  *  0       1       DA      BSSID   SA      -       AP -> STA
  36  *  1       0       BSSID   SA      DA      -       AP <- STA
  37  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  38  */
  39
  40 #define FCS_LEN 4
  41
  42 #define IEEE80211_FCTL_VERS             0x0003
  43 #define IEEE80211_FCTL_FTYPE            0x000c
  44 #define IEEE80211_FCTL_STYPE            0x00f0
  45 #define IEEE80211_FCTL_TODS             0x0100
  46 #define IEEE80211_FCTL_FROMDS           0x0200
  47 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  48 #define IEEE80211_FCTL_RETRY            0x0800
  49 #define IEEE80211_FCTL_PM               0x1000
  50 #define IEEE80211_FCTL_MOREDATA         0x2000
  51 #define IEEE80211_FCTL_PROTECTED        0x4000
  52 #define IEEE80211_FCTL_ORDER            0x8000
  53 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  54
  55 #define IEEE80211_SCTL_FRAG             0x000F
  56 #define IEEE80211_SCTL_SEQ              0xFFF0
  57
  58 #define IEEE80211_FTYPE_MGMT            0x0000
  59 #define IEEE80211_FTYPE_CTL             0x0004
  60 #define IEEE80211_FTYPE_DATA            0x0008
  61 #define IEEE80211_FTYPE_EXT             0x000c
  62
  63 /* management */
  64 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  65 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  66 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  67 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  68 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  69 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  70 #define IEEE80211_STYPE_BEACON          0x0080
  71 #define IEEE80211_STYPE_ATIM            0x0090
  72 #define IEEE80211_STYPE_DISASSOC        0x00A0
  73 #define IEEE80211_STYPE_AUTH            0x00B0
  74 #define IEEE80211_STYPE_DEAUTH          0x00C0
  75 #define IEEE80211_STYPE_ACTION          0x00D0
  76
  77 /* control */
  78 #define IEEE80211_STYPE_CTL_EXT         0x0060
  79 #define IEEE80211_STYPE_BACK_REQ        0x0080
  80 #define IEEE80211_STYPE_BACK            0x0090
  81 #define IEEE80211_STYPE_PSPOLL          0x00A0
  82 #define IEEE80211_STYPE_RTS             0x00B0
  83 #define IEEE80211_STYPE_CTS             0x00C0
  84 #define IEEE80211_STYPE_ACK             0x00D0
  85 #define IEEE80211_STYPE_CFEND           0x00E0
  86 #define IEEE80211_STYPE_CFENDACK        0x00F0
  87
  88 /* data */
  89 #define IEEE80211_STYPE_DATA                    0x0000
  90 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  91 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  92 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  93 #define IEEE80211_STYPE_NULLFUNC                0x0040
  94 #define IEEE80211_STYPE_CFACK                   0x0050
  95 #define IEEE80211_STYPE_CFPOLL                  0x0060
  96 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  97 #define IEEE80211_STYPE_QOS_DATA                0x0080
  98 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  99 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
 100 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
 101 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 102 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 103 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 104 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 105
 106 /* extension, added by 802.11ad */
 107 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 108
 109 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 110 #define IEEE80211_CTL_EXT_POLL          0x2000
 111 #define IEEE80211_CTL_EXT_SPR           0x3000
 112 #define IEEE80211_CTL_EXT_GRANT 0x4000
 113 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 114 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 115 #define IEEE80211_CTL_EXT_SSW           0x8000
 116 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 117 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 118
 119
 120 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 121 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 122 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 123
 124 static inline int ieee80211_sn_less(u16 sn1, u16 sn2)
 125 {
 126         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 127 }
 128
 129 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 130 {
 131         return (sn1 + sn2) & IEEE80211_SN_MASK;
 132 }
 133
 134 static inline u16 ieee80211_sn_inc(u16 sn)
 135 {
 136         return ieee80211_sn_add(sn, 1);
 137 }
 138
 139 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 140 {
 141         return (sn1 - sn2) & IEEE80211_SN_MASK;
 142 }
 143
 144 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 145 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 146
 147 /* miscellaneous IEEE 802.11 constants */
 148 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 149 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 150 #define IEEE80211_MAX_AID               2007
 151 #define IEEE80211_MAX_TIM_LEN           251
 152 #define IEEE80211_MAX_MESH_PEERINGS     63
 153 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 154    6.2.1.1.2.
 155
 156    802.11e clarifies the figure in section 7.1.2. The frame body is
 157    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 158 #define IEEE80211_MAX_DATA_LEN          2304
 159 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 160  * to 7920 bytes, see 8.2.3 General frame format
 161  */
 162 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 163 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 164 #define IEEE80211_MAX_FRAME_LEN         2352
 165
 166 #define IEEE80211_MAX_SSID_LEN          32
 167
 168 #define IEEE80211_MAX_MESH_ID_LEN       32
 169
 170 #define IEEE80211_FIRST_TSPEC_TSID      8
 171 #define IEEE80211_NUM_TIDS              16
 172
 173 /* number of user priorities 802.11 uses */
 174 #define IEEE80211_NUM_UPS               8
 175
 176 #define IEEE80211_QOS_CTL_LEN           2
 177 /* 1d tag mask */
 178 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 179 /* TID mask */
 180 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 181 /* EOSP */
 182 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 183 /* ACK policy */
 184 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 185 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 186 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 187 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 188 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 189 /* A-MSDU 802.11n */
 190 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 191 /* Mesh Control 802.11s */
 192 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 193
 194 /* Mesh Power Save Level */
 195 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 196 /* Mesh Receiver Service Period Initiated */
 197 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 198
 199 /* U-APSD queue for WMM IEs sent by AP */
 200 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 201 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 202
 203 /* U-APSD queues for WMM IEs sent by STA */
 204 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 205 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 206 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 207 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 208 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 209
 210 /* U-APSD max SP length for WMM IEs sent by STA */
 211 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 212 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 213 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 214 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 215 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 216 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 217
 218 #define IEEE80211_HT_CTL_LEN            4
 219
 220 struct ieee80211_hdr {
 221         __le16 frame_control;
 222         __le16 duration_id;
 223         u8 addr1[ETH_ALEN];
 224         u8 addr2[ETH_ALEN];
 225         u8 addr3[ETH_ALEN];
 226         __le16 seq_ctrl;
 227         u8 addr4[ETH_ALEN];
 228 } __packed __aligned(2);
 229
 230 struct ieee80211_hdr_3addr {
 231         __le16 frame_control;
 232         __le16 duration_id;
 233         u8 addr1[ETH_ALEN];
 234         u8 addr2[ETH_ALEN];
 235         u8 addr3[ETH_ALEN];
 236         __le16 seq_ctrl;
 237 } __packed __aligned(2);
 238
 239 struct ieee80211_qos_hdr {
 240         __le16 frame_control;
 241         __le16 duration_id;
 242         u8 addr1[ETH_ALEN];
 243         u8 addr2[ETH_ALEN];
 244         u8 addr3[ETH_ALEN];
 245         __le16 seq_ctrl;
 246         __le16 qos_ctrl;
 247 } __packed __aligned(2);
 248
 249 /**
 250  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 251  * @fc: frame control bytes in little-endian byteorder
 252  */
 253 static inline int ieee80211_has_tods(__le16 fc)
 254 {
 255         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 256 }
 257
 258 /**
 259  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 260  * @fc: frame control bytes in little-endian byteorder
 261  */
 262 static inline int ieee80211_has_fromds(__le16 fc)
 263 {
 264         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 265 }
 266
 267 /**
 268  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 269  * @fc: frame control bytes in little-endian byteorder
 270  */
 271 static inline int ieee80211_has_a4(__le16 fc)
 272 {
 273         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 274         return (fc & tmp) == tmp;
 275 }
 276
 277 /**
 278  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 279  * @fc: frame control bytes in little-endian byteorder
 280  */
 281 static inline int ieee80211_has_morefrags(__le16 fc)
 282 {
 283         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 284 }
 285
 286 /**
 287  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 288  * @fc: frame control bytes in little-endian byteorder
 289  */
 290 static inline int ieee80211_has_retry(__le16 fc)
 291 {
 292         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 293 }
 294
 295 /**
 296  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 297  * @fc: frame control bytes in little-endian byteorder
 298  */
 299 static inline int ieee80211_has_pm(__le16 fc)
 300 {
 301         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 302 }
 303
 304 /**
 305  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 306  * @fc: frame control bytes in little-endian byteorder
 307  */
 308 static inline int ieee80211_has_moredata(__le16 fc)
 309 {
 310         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 311 }
 312
 313 /**
 314  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 315  * @fc: frame control bytes in little-endian byteorder
 316  */
 317 static inline int ieee80211_has_protected(__le16 fc)
 318 {
 319         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 320 }
 321
 322 /**
 323  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 324  * @fc: frame control bytes in little-endian byteorder
 325  */
 326 static inline int ieee80211_has_order(__le16 fc)
 327 {
 328         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 329 }
 330
 331 /**
 332  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 333  * @fc: frame control bytes in little-endian byteorder
 334  */
 335 static inline int ieee80211_is_mgmt(__le16 fc)
 336 {
 337         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 338                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 339 }
 340
 341 /**
 342  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 343  * @fc: frame control bytes in little-endian byteorder
 344  */
 345 static inline int ieee80211_is_ctl(__le16 fc)
 346 {
 347         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 348                cpu_to_le16(IEEE80211_FTYPE_CTL);
 349 }
 350
 351 /**
 352  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 353  * @fc: frame control bytes in little-endian byteorder
 354  */
 355 static inline int ieee80211_is_data(__le16 fc)
 356 {
 357         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 358                cpu_to_le16(IEEE80211_FTYPE_DATA);
 359 }
 360
 361 /**
 362  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 363  * @fc: frame control bytes in little-endian byteorder
 364  */
 365 static inline int ieee80211_is_data_qos(__le16 fc)
 366 {
 367         /*
 368          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 369          * to check the one bit
 370          */
 371         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 372                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 373 }
 374
 375 /**
 376  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 377  * @fc: frame control bytes in little-endian byteorder
 378  */
 379 static inline int ieee80211_is_data_present(__le16 fc)
 380 {
 381         /*
 382          * mask with 0x40 and test that that bit is clear to only return true
 383          * for the data-containing substypes.
 384          */
 385         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 386                cpu_to_le16(IEEE80211_FTYPE_DATA);
 387 }
 388
 389 /**
 390  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 391  * @fc: frame control bytes in little-endian byteorder
 392  */
 393 static inline int ieee80211_is_assoc_req(__le16 fc)
 394 {
 395         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 396                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 397 }
 398
 399 /**
 400  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 401  * @fc: frame control bytes in little-endian byteorder
 402  */
 403 static inline int ieee80211_is_assoc_resp(__le16 fc)
 404 {
 405         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 406                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 407 }
 408
 409 /**
 410  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 411  * @fc: frame control bytes in little-endian byteorder
 412  */
 413 static inline int ieee80211_is_reassoc_req(__le16 fc)
 414 {
 415         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 416                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 417 }
 418
 419 /**
 420  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 421  * @fc: frame control bytes in little-endian byteorder
 422  */
 423 static inline int ieee80211_is_reassoc_resp(__le16 fc)
 424 {
 425         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 426                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 427 }
 428
 429 /**
 430  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 431  * @fc: frame control bytes in little-endian byteorder
 432  */
 433 static inline int ieee80211_is_probe_req(__le16 fc)
 434 {
 435         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 436                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 437 }
 438
 439 /**
 440  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 441  * @fc: frame control bytes in little-endian byteorder
 442  */
 443 static inline int ieee80211_is_probe_resp(__le16 fc)
 444 {
 445         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 446                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 447 }
 448
 449 /**
 450  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 451  * @fc: frame control bytes in little-endian byteorder
 452  */
 453 static inline int ieee80211_is_beacon(__le16 fc)
 454 {
 455         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 456                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 457 }
 458
 459 /**
 460  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 461  * @fc: frame control bytes in little-endian byteorder
 462  */
 463 static inline int ieee80211_is_atim(__le16 fc)
 464 {
 465         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 466                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 467 }
 468
 469 /**
 470  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 471  * @fc: frame control bytes in little-endian byteorder
 472  */
 473 static inline int ieee80211_is_disassoc(__le16 fc)
 474 {
 475         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 476                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 477 }
 478
 479 /**
 480  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 481  * @fc: frame control bytes in little-endian byteorder
 482  */
 483 static inline int ieee80211_is_auth(__le16 fc)
 484 {
 485         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 486                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 487 }
 488
 489 /**
 490  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 491  * @fc: frame control bytes in little-endian byteorder
 492  */
 493 static inline int ieee80211_is_deauth(__le16 fc)
 494 {
 495         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 496                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 497 }
 498
 499 /**
 500  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 501  * @fc: frame control bytes in little-endian byteorder
 502  */
 503 static inline int ieee80211_is_action(__le16 fc)
 504 {
 505         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 506                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 507 }
 508
 509 /**
 510  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 511  * @fc: frame control bytes in little-endian byteorder
 512  */
 513 static inline int ieee80211_is_back_req(__le16 fc)
 514 {
 515         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 516                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 517 }
 518
 519 /**
 520  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 521  * @fc: frame control bytes in little-endian byteorder
 522  */
 523 static inline int ieee80211_is_back(__le16 fc)
 524 {
 525         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 526                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 527 }
 528
 529 /**
 530  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 531  * @fc: frame control bytes in little-endian byteorder
 532  */
 533 static inline int ieee80211_is_pspoll(__le16 fc)
 534 {
 535         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 536                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 537 }
 538
 539 /**
 540  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 541  * @fc: frame control bytes in little-endian byteorder
 542  */
 543 static inline int ieee80211_is_rts(__le16 fc)
 544 {
 545         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 546                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 547 }
 548
 549 /**
 550  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 551  * @fc: frame control bytes in little-endian byteorder
 552  */
 553 static inline int ieee80211_is_cts(__le16 fc)
 554 {
 555         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 556                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 557 }
 558
 559 /**
 560  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 561  * @fc: frame control bytes in little-endian byteorder
 562  */
 563 static inline int ieee80211_is_ack(__le16 fc)
 564 {
 565         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 566                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 567 }
 568
 569 /**
 570  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 571  * @fc: frame control bytes in little-endian byteorder
 572  */
 573 static inline int ieee80211_is_cfend(__le16 fc)
 574 {
 575         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 576                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 577 }
 578
 579 /**
 580  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 581  * @fc: frame control bytes in little-endian byteorder
 582  */
 583 static inline int ieee80211_is_cfendack(__le16 fc)
 584 {
 585         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 586                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 587 }
 588
 589 /**
 590  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 591  * @fc: frame control bytes in little-endian byteorder
 592  */
 593 static inline int ieee80211_is_nullfunc(__le16 fc)
 594 {
 595         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 596                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 597 }
 598
 599 /**
 600  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 601  * @fc: frame control bytes in little-endian byteorder
 602  */
 603 static inline int ieee80211_is_qos_nullfunc(__le16 fc)
 604 {
 605         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 606                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 607 }
 608
 609 /**
 610  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 611  * @fc: frame control field in little-endian byteorder
 612  */
 613 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 614 {
 615         /* IEEE 802.11-2012, definition of "bufferable management frame";
 616          * note that this ignores the IBSS special case. */
 617         return ieee80211_is_mgmt(fc) &&
 618                (ieee80211_is_action(fc) ||
 619                 ieee80211_is_disassoc(fc) ||
 620                 ieee80211_is_deauth(fc));
 621 }
 622
 623 /**
 624  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 625  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 626  */
 627 static inline int ieee80211_is_first_frag(__le16 seq_ctrl)
 628 {
 629         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 630 }
 631
 632 struct ieee80211s_hdr {
 633         u8 flags;
 634         u8 ttl;
 635         __le32 seqnum;
 636         u8 eaddr1[ETH_ALEN];
 637         u8 eaddr2[ETH_ALEN];
 638 } __packed __aligned(2);
 639
 640 /* Mesh flags */
 641 #define MESH_FLAGS_AE_A4        0x1
 642 #define MESH_FLAGS_AE_A5_A6     0x2
 643 #define MESH_FLAGS_AE           0x3
 644 #define MESH_FLAGS_PS_DEEP      0x4
 645
 646 /**
 647  * enum ieee80211_preq_flags - mesh PREQ element flags
 648  *
 649  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 650  */
 651 enum ieee80211_preq_flags {
 652         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 653 };
 654
 655 /**
 656  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 657  *
 658  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 659  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 660  */
 661 enum ieee80211_preq_target_flags {
 662         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 663         IEEE80211_PREQ_USN_FLAG = 1<<2,
 664 };
 665
 666 /**
 667  * struct ieee80211_quiet_ie
 668  *
 669  * This structure refers to "Quiet information element"
 670  */
 671 struct ieee80211_quiet_ie {
 672         u8 count;
 673         u8 period;
 674         __le16 duration;
 675         __le16 offset;
 676 } __packed;
 677
 678 /**
 679  * struct ieee80211_msrment_ie
 680  *
 681  * This structure refers to "Measurement Request/Report information element"
 682  */
 683 struct ieee80211_msrment_ie {
 684         u8 token;
 685         u8 mode;
 686         u8 type;
 687         u8 request[0];
 688 } __packed;
 689
 690 /**
 691  * struct ieee80211_channel_sw_ie
 692  *
 693  * This structure refers to "Channel Switch Announcement information element"
 694  */
 695 struct ieee80211_channel_sw_ie {
 696         u8 mode;
 697         u8 new_ch_num;
 698         u8 count;
 699 } __packed;
 700
 701 /**
 702  * struct ieee80211_ext_chansw_ie
 703  *
 704  * This structure represents the "Extended Channel Switch Announcement element"
 705  */
 706 struct ieee80211_ext_chansw_ie {
 707         u8 mode;
 708         u8 new_operating_class;
 709         u8 new_ch_num;
 710         u8 count;
 711 } __packed;
 712
 713 /**
 714  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 715  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 716  *      values here
 717  * This structure represents the "Secondary Channel Offset element"
 718  */
 719 struct ieee80211_sec_chan_offs_ie {
 720         u8 sec_chan_offs;
 721 } __packed;
 722
 723 /**
 724  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 725  *
 726  * This structure represents the "Mesh Channel Switch Paramters element"
 727  */
 728 struct ieee80211_mesh_chansw_params_ie {
 729         u8 mesh_ttl;
 730         u8 mesh_flags;
 731         __le16 mesh_reason;
 732         __le16 mesh_pre_value;
 733 } __packed;
 734
 735 /**
 736  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 737  */
 738 struct ieee80211_wide_bw_chansw_ie {
 739         u8 new_channel_width;
 740         u8 new_center_freq_seg0, new_center_freq_seg1;
 741 } __packed;
 742
 743 /**
 744  * struct ieee80211_tim
 745  *
 746  * This structure refers to "Traffic Indication Map information element"
 747  */
 748 struct ieee80211_tim_ie {
 749         u8 dtim_count;
 750         u8 dtim_period;
 751         u8 bitmap_ctrl;
 752         /* variable size: 1 - 251 bytes */
 753         u8 virtual_map[1];
 754 } __packed;
 755
 756 /**
 757  * struct ieee80211_meshconf_ie
 758  *
 759  * This structure refers to "Mesh Configuration information element"
 760  */
 761 struct ieee80211_meshconf_ie {
 762         u8 meshconf_psel;
 763         u8 meshconf_pmetric;
 764         u8 meshconf_congest;
 765         u8 meshconf_synch;
 766         u8 meshconf_auth;
 767         u8 meshconf_form;
 768         u8 meshconf_cap;
 769 } __packed;
 770
 771 /**
 772  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 773  *
 774  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 775  *      additional mesh peerings with other mesh STAs
 776  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 777  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 778  *      is ongoing
 779  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 780  *      neighbors in deep sleep mode
 781  */
 782 enum mesh_config_capab_flags {
 783         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 784         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 785         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 786         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 787 };
 788
 789 /**
 790  * mesh channel switch parameters element's flag indicator
 791  *
 792  */
 793 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 794 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 795 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 796
 797 /**
 798  * struct ieee80211_rann_ie
 799  *
 800  * This structure refers to "Root Announcement information element"
 801  */
 802 struct ieee80211_rann_ie {
 803         u8 rann_flags;
 804         u8 rann_hopcount;
 805         u8 rann_ttl;
 806         u8 rann_addr[ETH_ALEN];
 807         __le32 rann_seq;
 808         __le32 rann_interval;
 809         __le32 rann_metric;
 810 } __packed;
 811
 812 enum ieee80211_rann_flags {
 813         RANN_FLAG_IS_GATE = 1 << 0,
 814 };
 815
 816 enum ieee80211_ht_chanwidth_values {
 817         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 818         IEEE80211_HT_CHANWIDTH_ANY = 1,
 819 };
 820
 821 /**
 822  * enum ieee80211_opmode_bits - VHT operating mode field bits
 823  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 824  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 825  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 826  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 827  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 828  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 829  *      (the NSS value is the value of this field + 1)
 830  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 831  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 832  *      using a beamforming steering matrix
 833  */
 834 enum ieee80211_vht_opmode_bits {
 835         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 836         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 837         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 838         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 839         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 840         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 841         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 842         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 843 };
 844
 845 #define WLAN_SA_QUERY_TR_ID_LEN 2
 846
 847 /**
 848  * struct ieee80211_tpc_report_ie
 849  *
 850  * This structure refers to "TPC Report element"
 851  */
 852 struct ieee80211_tpc_report_ie {
 853         u8 tx_power;
 854         u8 link_margin;
 855 } __packed;
 856
 857 struct ieee80211_mgmt {
 858         __le16 frame_control;
 859         __le16 duration;
 860         u8 da[ETH_ALEN];
 861         u8 sa[ETH_ALEN];
 862         u8 bssid[ETH_ALEN];
 863         __le16 seq_ctrl;
 864         union {
 865                 struct {
 866                         __le16 auth_alg;
 867                         __le16 auth_transaction;
 868                         __le16 status_code;
 869                         /* possibly followed by Challenge text */
 870                         u8 variable[0];
 871                 } __packed auth;
 872                 struct {
 873                         __le16 reason_code;
 874                 } __packed deauth;
 875                 struct {
 876                         __le16 capab_info;
 877                         __le16 listen_interval;
 878                         /* followed by SSID and Supported rates */
 879                         u8 variable[0];
 880                 } __packed assoc_req;
 881                 struct {
 882                         __le16 capab_info;
 883                         __le16 status_code;
 884                         __le16 aid;
 885                         /* followed by Supported rates */
 886                         u8 variable[0];
 887                 } __packed assoc_resp, reassoc_resp;
 888                 struct {
 889                         __le16 capab_info;
 890                         __le16 listen_interval;
 891                         u8 current_ap[ETH_ALEN];
 892                         /* followed by SSID and Supported rates */
 893                         u8 variable[0];
 894                 } __packed reassoc_req;
 895                 struct {
 896                         __le16 reason_code;
 897                 } __packed disassoc;
 898                 struct {
 899                         __le64 timestamp;
 900                         __le16 beacon_int;
 901                         __le16 capab_info;
 902                         /* followed by some of SSID, Supported rates,
 903                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 904                         u8 variable[0];
 905                 } __packed beacon;
 906                 struct {
 907                         /* only variable items: SSID, Supported rates */
 908                         u8 variable[0];
 909                 } __packed probe_req;
 910                 struct {
 911                         __le64 timestamp;
 912                         __le16 beacon_int;
 913                         __le16 capab_info;
 914                         /* followed by some of SSID, Supported rates,
 915                          * FH Params, DS Params, CF Params, IBSS Params */
 916                         u8 variable[0];
 917                 } __packed probe_resp;
 918                 struct {
 919                         u8 category;
 920                         union {
 921                                 struct {
 922                                         u8 action_code;
 923                                         u8 dialog_token;
 924                                         u8 status_code;
 925                                         u8 variable[0];
 926                                 } __packed wme_action;
 927                                 struct{
 928                                         u8 action_code;
 929                                         u8 variable[0];
 930                                 } __packed chan_switch;
 931                                 struct{
 932                                         u8 action_code;
 933                                         struct ieee80211_ext_chansw_ie data;
 934                                         u8 variable[0];
 935                                 } __packed ext_chan_switch;
 936                                 struct{
 937                                         u8 action_code;
 938                                         u8 dialog_token;
 939                                         u8 element_id;
 940                                         u8 length;
 941                                         struct ieee80211_msrment_ie msr_elem;
 942                                 } __packed measurement;
 943                                 struct{
 944                                         u8 action_code;
 945                                         u8 dialog_token;
 946                                         __le16 capab;
 947                                         __le16 timeout;
 948                                         __le16 start_seq_num;
 949                                 } __packed addba_req;
 950                                 struct{
 951                                         u8 action_code;
 952                                         u8 dialog_token;
 953                                         __le16 status;
 954                                         __le16 capab;
 955                                         __le16 timeout;
 956                                 } __packed addba_resp;
 957                                 struct{
 958                                         u8 action_code;
 959                                         __le16 params;
 960                                         __le16 reason_code;
 961                                 } __packed delba;
 962                                 struct {
 963                                         u8 action_code;
 964                                         u8 variable[0];
 965                                 } __packed self_prot;
 966                                 struct{
 967                                         u8 action_code;
 968                                         u8 variable[0];
 969                                 } __packed mesh_action;
 970                                 struct {
 971                                         u8 action;
 972                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 973                                 } __packed sa_query;
 974                                 struct {
 975                                         u8 action;
 976                                         u8 smps_control;
 977                                 } __packed ht_smps;
 978                                 struct {
 979                                         u8 action_code;
 980                                         u8 chanwidth;
 981                                 } __packed ht_notify_cw;
 982                                 struct {
 983                                         u8 action_code;
 984                                         u8 dialog_token;
 985                                         __le16 capability;
 986                                         u8 variable[0];
 987                                 } __packed tdls_discover_resp;
 988                                 struct {
 989                                         u8 action_code;
 990                                         u8 operating_mode;
 991                                 } __packed vht_opmode_notif;
 992                                 struct {
 993                                         u8 action_code;
 994                                         u8 dialog_token;
 995                                         u8 tpc_elem_id;
 996                                         u8 tpc_elem_length;
 997                                         struct ieee80211_tpc_report_ie tpc;
 998                                 } __packed tpc_report;
 999                         } u;
1000                 } __packed action;
1001         } u;
1002 } __packed __aligned(2);
1003
1004 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1005 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1006
1007 /* mgmt header + 1 byte category code */
1008 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1009
1010
1011 /* Management MIC information element (IEEE 802.11w) */
1012 struct ieee80211_mmie {
1013         u8 element_id;
1014         u8 length;
1015         __le16 key_id;
1016         u8 sequence_number[6];
1017         u8 mic[8];
1018 } __packed;
1019
1020 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1021 struct ieee80211_mmie_16 {
1022         u8 element_id;
1023         u8 length;
1024         __le16 key_id;
1025         u8 sequence_number[6];
1026         u8 mic[16];
1027 } __packed;
1028
1029 struct ieee80211_vendor_ie {
1030         u8 element_id;
1031         u8 len;
1032         u8 oui[3];
1033         u8 oui_type;
1034 } __packed;
1035
1036 struct ieee80211_wmm_ac_param {
1037         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1038         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1039         __le16 txop_limit;
1040 } __packed;
1041
1042 struct ieee80211_wmm_param_ie {
1043         u8 element_id; /* Element ID: 221 (0xdd); */
1044         u8 len; /* Length: 24 */
1045         /* required fields for WMM version 1 */
1046         u8 oui[3]; /* 00:50:f2 */
1047         u8 oui_type; /* 2 */
1048         u8 oui_subtype; /* 1 */
1049         u8 version; /* 1 for WMM version 1.0 */
1050         u8 qos_info; /* AP/STA specific QoS info */
1051         u8 reserved; /* 0 */
1052         /* AC_BE, AC_BK, AC_VI, AC_VO */
1053         struct ieee80211_wmm_ac_param ac[4];
1054 } __packed;
1055
1056 /* Control frames */
1057 struct ieee80211_rts {
1058         __le16 frame_control;
1059         __le16 duration;
1060         u8 ra[ETH_ALEN];
1061         u8 ta[ETH_ALEN];
1062 } __packed __aligned(2);
1063
1064 struct ieee80211_cts {
1065         __le16 frame_control;
1066         __le16 duration;
1067         u8 ra[ETH_ALEN];
1068 } __packed __aligned(2);
1069
1070 struct ieee80211_pspoll {
1071         __le16 frame_control;
1072         __le16 aid;
1073         u8 bssid[ETH_ALEN];
1074         u8 ta[ETH_ALEN];
1075 } __packed __aligned(2);
1076
1077 /* TDLS */
1078
1079 /* Channel switch timing */
1080 struct ieee80211_ch_switch_timing {
1081         __le16 switch_time;
1082         __le16 switch_timeout;
1083 } __packed;
1084
1085 /* Link-id information element */
1086 struct ieee80211_tdls_lnkie {
1087         u8 ie_type; /* Link Identifier IE */
1088         u8 ie_len;
1089         u8 bssid[ETH_ALEN];
1090         u8 init_sta[ETH_ALEN];
1091         u8 resp_sta[ETH_ALEN];
1092 } __packed;
1093
1094 struct ieee80211_tdls_data {
1095         u8 da[ETH_ALEN];
1096         u8 sa[ETH_ALEN];
1097         __be16 ether_type;
1098         u8 payload_type;
1099         u8 category;
1100         u8 action_code;
1101         union {
1102                 struct {
1103                         u8 dialog_token;
1104                         __le16 capability;
1105                         u8 variable[0];
1106                 } __packed setup_req;
1107                 struct {
1108                         __le16 status_code;
1109                         u8 dialog_token;
1110                         __le16 capability;
1111                         u8 variable[0];
1112                 } __packed setup_resp;
1113                 struct {
1114                         __le16 status_code;
1115                         u8 dialog_token;
1116                         u8 variable[0];
1117                 } __packed setup_cfm;
1118                 struct {
1119                         __le16 reason_code;
1120                         u8 variable[0];
1121                 } __packed teardown;
1122                 struct {
1123                         u8 dialog_token;
1124                         u8 variable[0];
1125                 } __packed discover_req;
1126                 struct {
1127                         u8 target_channel;
1128                         u8 oper_class;
1129                         u8 variable[0];
1130                 } __packed chan_switch_req;
1131                 struct {
1132                         __le16 status_code;
1133                         u8 variable[0];
1134                 } __packed chan_switch_resp;
1135         } u;
1136 } __packed;
1137
1138 /*
1139  * Peer-to-Peer IE attribute related definitions.
1140  */
1141 /**
1142  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1143  */
1144 enum ieee80211_p2p_attr_id {
1145         IEEE80211_P2P_ATTR_STATUS = 0,
1146         IEEE80211_P2P_ATTR_MINOR_REASON,
1147         IEEE80211_P2P_ATTR_CAPABILITY,
1148         IEEE80211_P2P_ATTR_DEVICE_ID,
1149         IEEE80211_P2P_ATTR_GO_INTENT,
1150         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1151         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1152         IEEE80211_P2P_ATTR_GROUP_BSSID,
1153         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1154         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1155         IEEE80211_P2P_ATTR_MANAGABILITY,
1156         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1157         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1158         IEEE80211_P2P_ATTR_DEVICE_INFO,
1159         IEEE80211_P2P_ATTR_GROUP_INFO,
1160         IEEE80211_P2P_ATTR_GROUP_ID,
1161         IEEE80211_P2P_ATTR_INTERFACE,
1162         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1163         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1164         /* 19 - 220: Reserved */
1165         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1166
1167         IEEE80211_P2P_ATTR_MAX
1168 };
1169
1170 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1171 /* Typical max value used here */
1172 #define IEEE80211_P2P_NOA_DESC_MAX      4
1173
1174 struct ieee80211_p2p_noa_desc {
1175         u8 count;
1176         __le32 duration;
1177         __le32 interval;
1178         __le32 start_time;
1179 } __packed;
1180
1181 struct ieee80211_p2p_noa_attr {
1182         u8 index;
1183         u8 oppps_ctwindow;
1184         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1185 } __packed;
1186
1187 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1188 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1189
1190 /**
1191  * struct ieee80211_bar - HT Block Ack Request
1192  *
1193  * This structure refers to "HT BlockAckReq" as
1194  * described in 802.11n draft section 7.2.1.7.1
1195  */
1196 struct ieee80211_bar {
1197         __le16 frame_control;
1198         __le16 duration;
1199         __u8 ra[ETH_ALEN];
1200         __u8 ta[ETH_ALEN];
1201         __le16 control;
1202         __le16 start_seq_num;
1203 } __packed;
1204
1205 /* 802.11 BAR control masks */
1206 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1207 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1208 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1209 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1210 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1211
1212 #define IEEE80211_HT_MCS_MASK_LEN               10
1213
1214 /**
1215  * struct ieee80211_mcs_info - MCS information
1216  * @rx_mask: RX mask
1217  * @rx_highest: highest supported RX rate. If set represents
1218  *      the highest supported RX data rate in units of 1 Mbps.
1219  *      If this field is 0 this value should not be used to
1220  *      consider the highest RX data rate supported.
1221  * @tx_params: TX parameters
1222  */
1223 struct ieee80211_mcs_info {
1224         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1225         __le16 rx_highest;
1226         u8 tx_params;
1227         u8 reserved[3];
1228 } __packed;
1229
1230 /* 802.11n HT capability MSC set */
1231 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1232 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1233 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1234 /* value 0 == 1 stream etc */
1235 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1236 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1237 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1238 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1239
1240 /*
1241  * 802.11n D5.0 20.3.5 / 20.6 says:
1242  * - indices 0 to 7 and 32 are single spatial stream
1243  * - 8 to 31 are multiple spatial streams using equal modulation
1244  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1245  * - remainder are multiple spatial streams using unequal modulation
1246  */
1247 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1248 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1249         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1250
1251 /**
1252  * struct ieee80211_ht_cap - HT capabilities
1253  *
1254  * This structure is the "HT capabilities element" as
1255  * described in 802.11n D5.0 7.3.2.57
1256  */
1257 struct ieee80211_ht_cap {
1258         __le16 cap_info;
1259         u8 ampdu_params_info;
1260
1261         /* 16 bytes MCS information */
1262         struct ieee80211_mcs_info mcs;
1263
1264         __le16 extended_ht_cap_info;
1265         __le32 tx_BF_cap_info;
1266         u8 antenna_selection_info;
1267 } __packed;
1268
1269 /* 802.11n HT capabilities masks (for cap_info) */
1270 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1271 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1272 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1273 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1274 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1275 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1276 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1277 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1278 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1279 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1280 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1281 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1282 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1283 #define IEEE80211_HT_CAP_RESERVED               0x2000
1284 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1285 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1286
1287 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1288 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1289 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1290 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1291 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1292 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1293 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1294 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1295
1296 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1297 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1298 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1299 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1300
1301 /*
1302  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1303  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1304  */
1305 enum ieee80211_max_ampdu_length_exp {
1306         IEEE80211_HT_MAX_AMPDU_8K = 0,
1307         IEEE80211_HT_MAX_AMPDU_16K = 1,
1308         IEEE80211_HT_MAX_AMPDU_32K = 2,
1309         IEEE80211_HT_MAX_AMPDU_64K = 3
1310 };
1311
1312 /*
1313  * Maximum length of AMPDU that the STA can receive in VHT.
1314  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1315  */
1316 enum ieee80211_vht_max_ampdu_length_exp {
1317         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1318         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1319         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1320         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1321         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1322         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1323         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1324         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1325 };
1326
1327 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1328
1329 /* Minimum MPDU start spacing */
1330 enum ieee80211_min_mpdu_spacing {
1331         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1332         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1333         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1334         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1335         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1336         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1337         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1338         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1339 };
1340
1341 /**
1342  * struct ieee80211_ht_operation - HT operation IE
1343  *
1344  * This structure is the "HT operation element" as
1345  * described in 802.11n-2009 7.3.2.57
1346  */
1347 struct ieee80211_ht_operation {
1348         u8 primary_chan;
1349         u8 ht_param;
1350         __le16 operation_mode;
1351         __le16 stbc_param;
1352         u8 basic_set[16];
1353 } __packed;
1354
1355 /* for ht_param */
1356 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1357 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1358 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1359 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1360 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1361 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1362
1363 /* for operation_mode */
1364 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1365 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1366 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1367 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1368 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1369 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1370 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1371
1372 /* for stbc_param */
1373 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1374 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1375 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1376 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1377 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1378 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1379
1380
1381 /* block-ack parameters */
1382 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1383 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1384 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1385 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1386 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1387
1388 /*
1389  * A-PMDU buffer sizes
1390  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1391  */
1392 #define IEEE80211_MIN_AMPDU_BUF 0x8
1393 #define IEEE80211_MAX_AMPDU_BUF 0x40
1394
1395
1396 /* Spatial Multiplexing Power Save Modes (for capability) */
1397 #define WLAN_HT_CAP_SM_PS_STATIC        0
1398 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1399 #define WLAN_HT_CAP_SM_PS_INVALID       2
1400 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1401
1402 /* for SM power control field lower two bits */
1403 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1404 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1405 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1406
1407 /**
1408  * struct ieee80211_vht_mcs_info - VHT MCS information
1409  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1410  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1411  *      STA can receive. Rate expressed in units of 1 Mbps.
1412  *      If this field is 0 this value should not be used to
1413  *      consider the highest RX data rate supported.
1414  *      The top 3 bits of this field are reserved.
1415  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1416  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1417  *      STA can transmit. Rate expressed in units of 1 Mbps.
1418  *      If this field is 0 this value should not be used to
1419  *      consider the highest TX data rate supported.
1420  *      The top 3 bits of this field are reserved.
1421  */
1422 struct ieee80211_vht_mcs_info {
1423         __le16 rx_mcs_map;
1424         __le16 rx_highest;
1425         __le16 tx_mcs_map;
1426         __le16 tx_highest;
1427 } __packed;
1428
1429 /**
1430  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1431  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1432  *      number of streams
1433  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1434  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1435  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1436  *
1437  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1438  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1439  * both split into 8 subfields by number of streams. These values indicate
1440  * which MCSes are supported for the number of streams the value appears
1441  * for.
1442  */
1443 enum ieee80211_vht_mcs_support {
1444         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1445         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1446         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1447         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1448 };
1449
1450 /**
1451  * struct ieee80211_vht_cap - VHT capabilities
1452  *
1453  * This structure is the "VHT capabilities element" as
1454  * described in 802.11ac D3.0 8.4.2.160
1455  * @vht_cap_info: VHT capability info
1456  * @supp_mcs: VHT MCS supported rates
1457  */
1458 struct ieee80211_vht_cap {
1459         __le32 vht_cap_info;
1460         struct ieee80211_vht_mcs_info supp_mcs;
1461 } __packed;
1462
1463 /**
1464  * enum ieee80211_vht_chanwidth - VHT channel width
1465  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1466  *      determine the channel width (20 or 40 MHz)
1467  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1468  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1469  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1470  */
1471 enum ieee80211_vht_chanwidth {
1472         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1473         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1474         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1475         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1476 };
1477
1478 /**
1479  * struct ieee80211_vht_operation - VHT operation IE
1480  *
1481  * This structure is the "VHT operation element" as
1482  * described in 802.11ac D3.0 8.4.2.161
1483  * @chan_width: Operating channel width
1484  * @center_freq_seg1_idx: center freq segment 1 index
1485  * @center_freq_seg2_idx: center freq segment 2 index
1486  * @basic_mcs_set: VHT Basic MCS rate set
1487  */
1488 struct ieee80211_vht_operation {
1489         u8 chan_width;
1490         u8 center_freq_seg1_idx;
1491         u8 center_freq_seg2_idx;
1492         __le16 basic_mcs_set;
1493 } __packed;
1494
1495
1496 /* 802.11ac VHT Capabilities */
1497 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1498 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1499 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1500 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1501 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1502 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1503 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1504 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1505 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1506 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1507 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1508 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1509 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1510 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1511 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1512 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1513 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1514 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1515 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1516                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1517 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1518 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1519                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1520 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1521 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1522 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1523 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1524 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1525 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1526                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1527 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1528 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1529 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1530 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1531
1532 /* Authentication algorithms */
1533 #define WLAN_AUTH_OPEN 0
1534 #define WLAN_AUTH_SHARED_KEY 1
1535 #define WLAN_AUTH_FT 2
1536 #define WLAN_AUTH_SAE 3
1537 #define WLAN_AUTH_LEAP 128
1538
1539 #define WLAN_AUTH_CHALLENGE_LEN 128
1540
1541 #define WLAN_CAPABILITY_ESS             (1<<0)
1542 #define WLAN_CAPABILITY_IBSS            (1<<1)
1543
1544 /*
1545  * A mesh STA sets the ESS and IBSS capability bits to zero.
1546  * however, this holds true for p2p probe responses (in the p2p_find
1547  * phase) as well.
1548  */
1549 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1550         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1551
1552 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1553 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1554 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1555 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1556 #define WLAN_CAPABILITY_PBCC            (1<<6)
1557 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1558
1559 /* 802.11h */
1560 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1561 #define WLAN_CAPABILITY_QOS             (1<<9)
1562 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1563 #define WLAN_CAPABILITY_APSD            (1<<11)
1564 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1565 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1566 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1567 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1568
1569 /* DMG (60gHz) 802.11ad */
1570 /* type - bits 0..1 */
1571 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1572 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1573 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1574 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1575
1576 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1577 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1578 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1579 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1580
1581 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1582 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1583
1584 /* measurement */
1585 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1586 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1587 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1588
1589 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1590 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1591 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1592
1593 /* 802.11g ERP information element */
1594 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1595 #define WLAN_ERP_USE_PROTECTION (1<<1)
1596 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1597
1598 /* WLAN_ERP_BARKER_PREAMBLE values */
1599 enum {
1600         WLAN_ERP_PREAMBLE_SHORT = 0,
1601         WLAN_ERP_PREAMBLE_LONG = 1,
1602 };
1603
1604 /* Band ID, 802.11ad #8.4.1.45 */
1605 enum {
1606         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1607         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1608         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1609         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1610         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1611         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1612 };
1613
1614 /* Status codes */
1615 enum ieee80211_statuscode {
1616         WLAN_STATUS_SUCCESS = 0,
1617         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1618         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1619         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1620         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1621         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1622         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1623         WLAN_STATUS_CHALLENGE_FAIL = 15,
1624         WLAN_STATUS_AUTH_TIMEOUT = 16,
1625         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1626         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1627         /* 802.11b */
1628         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1629         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1630         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1631         /* 802.11h */
1632         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1633         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1634         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1635         /* 802.11g */
1636         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1637         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1638         /* 802.11w */
1639         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1640         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1641         /* 802.11i */
1642         WLAN_STATUS_INVALID_IE = 40,
1643         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1644         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1645         WLAN_STATUS_INVALID_AKMP = 43,
1646         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1647         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1648         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1649         /* 802.11e */
1650         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1651         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1652         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1653         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1654         WLAN_STATUS_REQUEST_DECLINED = 37,
1655         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1656         WLAN_STATUS_CHANGE_TSPEC = 39,
1657         WLAN_STATUS_WAIT_TS_DELAY = 47,
1658         WLAN_STATUS_NO_DIRECT_LINK = 48,
1659         WLAN_STATUS_STA_NOT_PRESENT = 49,
1660         WLAN_STATUS_STA_NOT_QSTA = 50,
1661         /* 802.11s */
1662         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1663         WLAN_STATUS_FCG_NOT_SUPP = 78,
1664         WLAN_STATUS_STA_NO_TBTT = 78,
1665         /* 802.11ad */
1666         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1667         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1668         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1669         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1670         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1671         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1672         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1673         WLAN_STATUS_REJECT_DSE_BAND = 96,
1674         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1675         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1676 };
1677
1678
1679 /* Reason codes */
1680 enum ieee80211_reasoncode {
1681         WLAN_REASON_UNSPECIFIED = 1,
1682         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1683         WLAN_REASON_DEAUTH_LEAVING = 3,
1684         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1685         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1686         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1687         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1688         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1689         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1690         /* 802.11h */
1691         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1692         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1693         /* 802.11i */
1694         WLAN_REASON_INVALID_IE = 13,
1695         WLAN_REASON_MIC_FAILURE = 14,
1696         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1697         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1698         WLAN_REASON_IE_DIFFERENT = 17,
1699         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1700         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1701         WLAN_REASON_INVALID_AKMP = 20,
1702         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1703         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1704         WLAN_REASON_IEEE8021X_FAILED = 23,
1705         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1706         /* TDLS (802.11z) */
1707         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1708         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1709         /* 802.11e */
1710         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1711         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1712         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1713         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1714         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1715         WLAN_REASON_QSTA_NOT_USE = 37,
1716         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1717         WLAN_REASON_QSTA_TIMEOUT = 39,
1718         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1719         /* 802.11s */
1720         WLAN_REASON_MESH_PEER_CANCELED = 52,
1721         WLAN_REASON_MESH_MAX_PEERS = 53,
1722         WLAN_REASON_MESH_CONFIG = 54,
1723         WLAN_REASON_MESH_CLOSE = 55,
1724         WLAN_REASON_MESH_MAX_RETRIES = 56,
1725         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1726         WLAN_REASON_MESH_INVALID_GTK = 58,
1727         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1728         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1729         WLAN_REASON_MESH_PATH_ERROR = 61,
1730         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1731         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1732         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1733         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1734         WLAN_REASON_MESH_CHAN = 66,
1735 };
1736
1737
1738 /* Information Element IDs */
1739 enum ieee80211_eid {
1740         WLAN_EID_SSID = 0,
1741         WLAN_EID_SUPP_RATES = 1,
1742         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1743         WLAN_EID_DS_PARAMS = 3,
1744         WLAN_EID_CF_PARAMS = 4,
1745         WLAN_EID_TIM = 5,
1746         WLAN_EID_IBSS_PARAMS = 6,
1747         WLAN_EID_COUNTRY = 7,
1748         WLAN_EID_HP_PARAMS = 8,
1749         WLAN_EID_HP_TABLE = 9,
1750         WLAN_EID_REQUEST = 10,
1751         WLAN_EID_QBSS_LOAD = 11,
1752         WLAN_EID_EDCA_PARAM_SET = 12,
1753         WLAN_EID_TSPEC = 13,
1754         WLAN_EID_TCLAS = 14,
1755         WLAN_EID_SCHEDULE = 15,
1756         WLAN_EID_CHALLENGE = 16,
1757         /* 17-31 reserved for challenge text extension */
1758         WLAN_EID_PWR_CONSTRAINT = 32,
1759         WLAN_EID_PWR_CAPABILITY = 33,
1760         WLAN_EID_TPC_REQUEST = 34,
1761         WLAN_EID_TPC_REPORT = 35,
1762         WLAN_EID_SUPPORTED_CHANNELS = 36,
1763         WLAN_EID_CHANNEL_SWITCH = 37,
1764         WLAN_EID_MEASURE_REQUEST = 38,
1765         WLAN_EID_MEASURE_REPORT = 39,
1766         WLAN_EID_QUIET = 40,
1767         WLAN_EID_IBSS_DFS = 41,
1768         WLAN_EID_ERP_INFO = 42,
1769         WLAN_EID_TS_DELAY = 43,
1770         WLAN_EID_TCLAS_PROCESSING = 44,
1771         WLAN_EID_HT_CAPABILITY = 45,
1772         WLAN_EID_QOS_CAPA = 46,
1773         /* 47 reserved for Broadcom */
1774         WLAN_EID_RSN = 48,
1775         WLAN_EID_802_15_COEX = 49,
1776         WLAN_EID_EXT_SUPP_RATES = 50,
1777         WLAN_EID_AP_CHAN_REPORT = 51,
1778         WLAN_EID_NEIGHBOR_REPORT = 52,
1779         WLAN_EID_RCPI = 53,
1780         WLAN_EID_MOBILITY_DOMAIN = 54,
1781         WLAN_EID_FAST_BSS_TRANSITION = 55,
1782         WLAN_EID_TIMEOUT_INTERVAL = 56,
1783         WLAN_EID_RIC_DATA = 57,
1784         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1785         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1786         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1787         WLAN_EID_HT_OPERATION = 61,
1788         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1789         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1790         WLAN_EID_ANTENNA_INFO = 64,
1791         WLAN_EID_RSNI = 65,
1792         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1793         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1794         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1795         WLAN_EID_TIME_ADVERTISEMENT = 69,
1796         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1797         WLAN_EID_MULTIPLE_BSSID = 71,
1798         WLAN_EID_BSS_COEX_2040 = 72,
1799         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1800         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1801         WLAN_EID_RIC_DESCRIPTOR = 75,
1802         WLAN_EID_MMIE = 76,
1803         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1804         WLAN_EID_EVENT_REQUEST = 78,
1805         WLAN_EID_EVENT_REPORT = 79,
1806         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1807         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1808         WLAN_EID_LOCATION_PARAMS = 82,
1809         WLAN_EID_NON_TX_BSSID_CAP =  83,
1810         WLAN_EID_SSID_LIST = 84,
1811         WLAN_EID_MULTI_BSSID_IDX = 85,
1812         WLAN_EID_FMS_DESCRIPTOR = 86,
1813         WLAN_EID_FMS_REQUEST = 87,
1814         WLAN_EID_FMS_RESPONSE = 88,
1815         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1816         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1817         WLAN_EID_TSF_REQUEST = 91,
1818         WLAN_EID_TSF_RESPOSNE = 92,
1819         WLAN_EID_WNM_SLEEP_MODE = 93,
1820         WLAN_EID_TIM_BCAST_REQ = 94,
1821         WLAN_EID_TIM_BCAST_RESP = 95,
1822         WLAN_EID_COLL_IF_REPORT = 96,
1823         WLAN_EID_CHANNEL_USAGE = 97,
1824         WLAN_EID_TIME_ZONE = 98,
1825         WLAN_EID_DMS_REQUEST = 99,
1826         WLAN_EID_DMS_RESPONSE = 100,
1827         WLAN_EID_LINK_ID = 101,
1828         WLAN_EID_WAKEUP_SCHEDUL = 102,
1829         /* 103 reserved */
1830         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1831         WLAN_EID_PTI_CONTROL = 105,
1832         WLAN_EID_PU_BUFFER_STATUS = 106,
1833         WLAN_EID_INTERWORKING = 107,
1834         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1835         WLAN_EID_EXPEDITED_BW_REQ = 109,
1836         WLAN_EID_QOS_MAP_SET = 110,
1837         WLAN_EID_ROAMING_CONSORTIUM = 111,
1838         WLAN_EID_EMERGENCY_ALERT = 112,
1839         WLAN_EID_MESH_CONFIG = 113,
1840         WLAN_EID_MESH_ID = 114,
1841         WLAN_EID_LINK_METRIC_REPORT = 115,
1842         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1843         WLAN_EID_PEER_MGMT = 117,
1844         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1845         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1846         WLAN_EID_BEACON_TIMING = 120,
1847         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1848         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1849         WLAN_EID_MCCAOP_ADVERT = 123,
1850         WLAN_EID_MCCAOP_TEARDOWN = 124,
1851         WLAN_EID_GANN = 125,
1852         WLAN_EID_RANN = 126,
1853         WLAN_EID_EXT_CAPABILITY = 127,
1854         /* 128, 129 reserved for Agere */
1855         WLAN_EID_PREQ = 130,
1856         WLAN_EID_PREP = 131,
1857         WLAN_EID_PERR = 132,
1858         /* 133-136 reserved for Cisco */
1859         WLAN_EID_PXU = 137,
1860         WLAN_EID_PXUC = 138,
1861         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1862         WLAN_EID_MIC = 140,
1863         WLAN_EID_DESTINATION_URI = 141,
1864         WLAN_EID_UAPSD_COEX = 142,
1865         WLAN_EID_WAKEUP_SCHEDULE = 143,
1866         WLAN_EID_EXT_SCHEDULE = 144,
1867         WLAN_EID_STA_AVAILABILITY = 145,
1868         WLAN_EID_DMG_TSPEC = 146,
1869         WLAN_EID_DMG_AT = 147,
1870         WLAN_EID_DMG_CAP = 148,
1871         /* 149 reserved for Cisco */
1872         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1873         WLAN_EID_DMG_OPERATION = 151,
1874         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1875         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1876         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1877         /* 155-156 reserved for Cisco */
1878         WLAN_EID_AWAKE_WINDOW = 157,
1879         WLAN_EID_MULTI_BAND = 158,
1880         WLAN_EID_ADDBA_EXT = 159,
1881         WLAN_EID_NEXT_PCP_LIST = 160,
1882         WLAN_EID_PCP_HANDOVER = 161,
1883         WLAN_EID_DMG_LINK_MARGIN = 162,
1884         WLAN_EID_SWITCHING_STREAM = 163,
1885         WLAN_EID_SESSION_TRANSITION = 164,
1886         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1887         WLAN_EID_CLUSTER_REPORT = 166,
1888         WLAN_EID_RELAY_CAP = 167,
1889         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1890         WLAN_EID_BEAM_LINK_MAINT = 169,
1891         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1892         WLAN_EID_U_PID = 171,
1893         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1894         /* 173 reserved for Symbol */
1895         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1896         WLAN_EID_QUIET_PERIOD_REQ = 175,
1897         /* 176 reserved for Symbol */
1898         WLAN_EID_QUIET_PERIOD_RESP = 177,
1899         /* 178-179 reserved for Symbol */
1900         /* 180 reserved for ISO/IEC 20011 */
1901         WLAN_EID_EPAC_POLICY = 182,
1902         WLAN_EID_CLISTER_TIME_OFF = 183,
1903         WLAN_EID_INTER_AC_PRIO = 184,
1904         WLAN_EID_SCS_DESCRIPTOR = 185,
1905         WLAN_EID_QLOAD_REPORT = 186,
1906         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1907         WLAN_EID_HL_STREAM_ID = 188,
1908         WLAN_EID_GCR_GROUP_ADDR = 189,
1909         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1910         WLAN_EID_VHT_CAPABILITY = 191,
1911         WLAN_EID_VHT_OPERATION = 192,
1912         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1913         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1914         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1915         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1916         WLAN_EID_AID = 197,
1917         WLAN_EID_QUIET_CHANNEL = 198,
1918         WLAN_EID_OPMODE_NOTIF = 199,
1919
1920         WLAN_EID_VENDOR_SPECIFIC = 221,
1921         WLAN_EID_QOS_PARAMETER = 222,
1922 };
1923
1924 /* Action category code */
1925 enum ieee80211_category {
1926         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1927         WLAN_CATEGORY_QOS = 1,
1928         WLAN_CATEGORY_DLS = 2,
1929         WLAN_CATEGORY_BACK = 3,
1930         WLAN_CATEGORY_PUBLIC = 4,
1931         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1932         WLAN_CATEGORY_HT = 7,
1933         WLAN_CATEGORY_SA_QUERY = 8,
1934         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1935         WLAN_CATEGORY_TDLS = 12,
1936         WLAN_CATEGORY_MESH_ACTION = 13,
1937         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1938         WLAN_CATEGORY_SELF_PROTECTED = 15,
1939         WLAN_CATEGORY_DMG = 16,
1940         WLAN_CATEGORY_WMM = 17,
1941         WLAN_CATEGORY_FST = 18,
1942         WLAN_CATEGORY_UNPROT_DMG = 20,
1943         WLAN_CATEGORY_VHT = 21,
1944         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1945         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1946 };
1947
1948 /* SPECTRUM_MGMT action code */
1949 enum ieee80211_spectrum_mgmt_actioncode {
1950         WLAN_ACTION_SPCT_MSR_REQ = 0,
1951         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1952         WLAN_ACTION_SPCT_TPC_REQ = 2,
1953         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1954         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1955 };
1956
1957 /* HT action codes */
1958 enum ieee80211_ht_actioncode {
1959         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1960         WLAN_HT_ACTION_SMPS = 1,
1961         WLAN_HT_ACTION_PSMP = 2,
1962         WLAN_HT_ACTION_PCO_PHASE = 3,
1963         WLAN_HT_ACTION_CSI = 4,
1964         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1965         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1966         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1967 };
1968
1969 /* VHT action codes */
1970 enum ieee80211_vht_actioncode {
1971         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
1972         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
1973         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
1974 };
1975
1976 /* Self Protected Action codes */
1977 enum ieee80211_self_protected_actioncode {
1978         WLAN_SP_RESERVED = 0,
1979         WLAN_SP_MESH_PEERING_OPEN = 1,
1980         WLAN_SP_MESH_PEERING_CONFIRM = 2,
1981         WLAN_SP_MESH_PEERING_CLOSE = 3,
1982         WLAN_SP_MGK_INFORM = 4,
1983         WLAN_SP_MGK_ACK = 5,
1984 };
1985
1986 /* Mesh action codes */
1987 enum ieee80211_mesh_actioncode {
1988         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
1989         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
1990         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
1991         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
1992         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
1993         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
1994         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
1995         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
1996         WLAN_MESH_ACTION_MCCA_TEARDOWN,
1997         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
1998         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
1999 };
2000
2001 /* Security key length */
2002 enum ieee80211_key_len {
2003         WLAN_KEY_LEN_WEP40 = 5,
2004         WLAN_KEY_LEN_WEP104 = 13,
2005         WLAN_KEY_LEN_CCMP = 16,
2006         WLAN_KEY_LEN_CCMP_256 = 32,
2007         WLAN_KEY_LEN_TKIP = 32,
2008         WLAN_KEY_LEN_AES_CMAC = 16,
2009         WLAN_KEY_LEN_SMS4 = 32,
2010         WLAN_KEY_LEN_GCMP = 16,
2011         WLAN_KEY_LEN_GCMP_256 = 32,
2012         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2013         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2014         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2015 };
2016
2017 #define IEEE80211_WEP_IV_LEN            4
2018 #define IEEE80211_WEP_ICV_LEN           4
2019 #define IEEE80211_CCMP_HDR_LEN          8
2020 #define IEEE80211_CCMP_MIC_LEN          8
2021 #define IEEE80211_CCMP_PN_LEN           6
2022 #define IEEE80211_CCMP_256_HDR_LEN      8
2023 #define IEEE80211_CCMP_256_MIC_LEN      16
2024 #define IEEE80211_CCMP_256_PN_LEN       6
2025 #define IEEE80211_TKIP_IV_LEN           8
2026 #define IEEE80211_TKIP_ICV_LEN          4
2027 #define IEEE80211_CMAC_PN_LEN           6
2028 #define IEEE80211_GMAC_PN_LEN           6
2029 #define IEEE80211_GCMP_HDR_LEN          8
2030 #define IEEE80211_GCMP_MIC_LEN          16
2031 #define IEEE80211_GCMP_PN_LEN           6
2032
2033 /* Public action codes */
2034 enum ieee80211_pub_actioncode {
2035         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2036         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2037 };
2038
2039 /* TDLS action codes */
2040 enum ieee80211_tdls_actioncode {
2041         WLAN_TDLS_SETUP_REQUEST = 0,
2042         WLAN_TDLS_SETUP_RESPONSE = 1,
2043         WLAN_TDLS_SETUP_CONFIRM = 2,
2044         WLAN_TDLS_TEARDOWN = 3,
2045         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2046         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2047         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2048         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2049         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2050         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2051         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2052 };
2053
2054 /* Extended Channel Switching capability to be set in the 1st byte of
2055  * the @WLAN_EID_EXT_CAPABILITY information element
2056  */
2057 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2058
2059 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2060 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2061 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2062 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2063
2064 /* Interworking capabilities are set in 7th bit of 4th byte of the
2065  * @WLAN_EID_EXT_CAPABILITY information element
2066  */
2067 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2068
2069 /*
2070  * TDLS capabililites to be enabled in the 5th byte of the
2071  * @WLAN_EID_EXT_CAPABILITY information element
2072  */
2073 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2074 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2075 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2076
2077 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2078 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(7)
2079
2080 /* TDLS specific payload type in the LLC/SNAP header */
2081 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2082
2083 /* BSS Coex IE information field bits */
2084 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2085
2086 /**
2087  * enum - mesh synchronization method identifier
2088  *
2089  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2090  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2091  *      that will be specified in a vendor specific information element
2092  */
2093 enum {
2094         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2095         IEEE80211_SYNC_METHOD_VENDOR = 255,
2096 };
2097
2098 /**
2099  * enum - mesh path selection protocol identifier
2100  *
2101  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2102  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2103  *      be specified in a vendor specific information element
2104  */
2105 enum {
2106         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2107         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2108 };
2109
2110 /**
2111  * enum - mesh path selection metric identifier
2112  *
2113  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2114  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2115  *      specified in a vendor specific information element
2116  */
2117 enum {
2118         IEEE80211_PATH_METRIC_AIRTIME = 1,
2119         IEEE80211_PATH_METRIC_VENDOR = 255,
2120 };
2121
2122 /**
2123  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2124  *
2125  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2126  *
2127  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2128  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2129  *      this value
2130  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2131  *      the proactive PREQ with proactive PREP subfield set to 0
2132  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2133  *      supports the proactive PREQ with proactive PREP subfield set to 1
2134  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2135  *      the proactive RANN
2136  */
2137 enum ieee80211_root_mode_identifier {
2138         IEEE80211_ROOTMODE_NO_ROOT = 0,
2139         IEEE80211_ROOTMODE_ROOT = 1,
2140         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2141         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2142         IEEE80211_PROACTIVE_RANN = 4,
2143 };
2144
2145 /*
2146  * IEEE 802.11-2007 7.3.2.9 Country information element
2147  *
2148  * Minimum length is 8 octets, ie len must be evenly
2149  * divisible by 2
2150  */
2151
2152 /* Although the spec says 8 I'm seeing 6 in practice */
2153 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2154
2155 /* The Country String field of the element shall be 3 octets in length */
2156 #define IEEE80211_COUNTRY_STRING_LEN    3
2157
2158 /*
2159  * For regulatory extension stuff see IEEE 802.11-2007
2160  * Annex I (page 1141) and Annex J (page 1147). Also
2161  * review 7.3.2.9.
2162  *
2163  * When dot11RegulatoryClassesRequired is true and the
2164  * first_channel/reg_extension_id is >= 201 then the IE
2165  * compromises of the 'ext' struct represented below:
2166  *
2167  *  - Regulatory extension ID - when generating IE this just needs
2168  *    to be monotonically increasing for each triplet passed in
2169  *    the IE
2170  *  - Regulatory class - index into set of rules
2171  *  - Coverage class - index into air propagation time (Table 7-27),
2172  *    in microseconds, you can compute the air propagation time from
2173  *    the index by multiplying by 3, so index 10 yields a propagation
2174  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2175  *    yet. A value of 0 inicates air propagation of <= 1 us.
2176  *
2177  *  See also Table I.2 for Emission limit sets and table
2178  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2179  *  a reg_class to an emission limit set and behavior limit set.
2180  */
2181 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2182
2183 /*
2184  *  Channels numbers in the IE must be monotonically increasing
2185  *  if dot11RegulatoryClassesRequired is not true.
2186  *
2187  *  If dot11RegulatoryClassesRequired is true consecutive
2188  *  subband triplets following a regulatory triplet shall
2189  *  have monotonically increasing first_channel number fields.
2190  *
2191  *  Channel numbers shall not overlap.
2192  *
2193  *  Note that max_power is signed.
2194  */
2195 struct ieee80211_country_ie_triplet {
2196         union {
2197                 struct {
2198                         u8 first_channel;
2199                         u8 num_channels;
2200                         s8 max_power;
2201                 } __packed chans;
2202                 struct {
2203                         u8 reg_extension_id;
2204                         u8 reg_class;
2205                         u8 coverage_class;
2206                 } __packed ext;
2207         };
2208 } __packed;
2209
2210 enum ieee80211_timeout_interval_type {
2211         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2212         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2213         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2214 };
2215
2216 /**
2217  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2218  * @type: type, see &enum ieee80211_timeout_interval_type
2219  * @value: timeout interval value
2220  */
2221 struct ieee80211_timeout_interval_ie {
2222         u8 type;
2223         __le32 value;
2224 } __packed;
2225
2226 /* BACK action code */
2227 enum ieee80211_back_actioncode {
2228         WLAN_ACTION_ADDBA_REQ = 0,
2229         WLAN_ACTION_ADDBA_RESP = 1,
2230         WLAN_ACTION_DELBA = 2,
2231 };
2232
2233 /* BACK (block-ack) parties */
2234 enum ieee80211_back_parties {
2235         WLAN_BACK_RECIPIENT = 0,
2236         WLAN_BACK_INITIATOR = 1,
2237 };
2238
2239 /* SA Query action */
2240 enum ieee80211_sa_query_action {
2241         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2242         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2243 };
2244
2245
2246 /* cipher suite selectors */
2247 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2248 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2249 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2250 /* reserved:                            0x000FAC03 */
2251 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2252 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2253 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2254 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2255 #define WLAN_CIPHER_SUITE_GCMP_256      0x000FAC09
2256 #define WLAN_CIPHER_SUITE_CCMP_256      0x000FAC0A
2257 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  0x000FAC0B
2258 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  0x000FAC0C
2259 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  0x000FAC0D
2260
2261 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2262
2263 /* AKM suite selectors */
2264 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2265 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2266 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
2267 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
2268 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
2269 #define WLAN_AKM_SUITE_SAE              0x000FAC08
2270 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2271
2272 #define WLAN_MAX_KEY_LEN                32
2273
2274 #define WLAN_PMKID_LEN                  16
2275
2276 #define WLAN_OUI_WFA                    0x506f9a
2277 #define WLAN_OUI_TYPE_WFA_P2P           9
2278 #define WLAN_OUI_MICROSOFT              0x0050f2
2279 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2280 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2281 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2282
2283 /*
2284  * WMM/802.11e Tspec Element
2285  */
2286 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2287 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2288
2289 enum ieee80211_tspec_status_code {
2290         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2291         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2292 };
2293
2294 struct ieee80211_tspec_ie {
2295         u8 element_id;
2296         u8 len;
2297         u8 oui[3];
2298         u8 oui_type;
2299         u8 oui_subtype;
2300         u8 version;
2301         __le16 tsinfo;
2302         u8 tsinfo_resvd;
2303         __le16 nominal_msdu;
2304         __le16 max_msdu;
2305         __le32 min_service_int;
2306         __le32 max_service_int;
2307         __le32 inactivity_int;
2308         __le32 suspension_int;
2309         __le32 service_start_time;
2310         __le32 min_data_rate;
2311         __le32 mean_data_rate;
2312         __le32 peak_data_rate;
2313         __le32 max_burst_size;
2314         __le32 delay_bound;
2315         __le32 min_phy_rate;
2316         __le16 sba;
2317         __le16 medium_time;
2318 } __packed;
2319
2320 /**
2321  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2322  * @hdr: the frame
2323  *
2324  * The qos ctrl bytes come after the frame_control, duration, seq_num
2325  * and 3 or 4 addresses of length ETH_ALEN.
2326  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2327  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2328  */
2329 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2330 {
2331         if (ieee80211_has_a4(hdr->frame_control))
2332                 return (u8 *)hdr + 30;
2333         else
2334                 return (u8 *)hdr + 24;
2335 }
2336
2337 /**
2338  * ieee80211_get_SA - get pointer to SA
2339  * @hdr: the frame
2340  *
2341  * Given an 802.11 frame, this function returns the offset
2342  * to the source address (SA). It does not verify that the
2343  * header is long enough to contain the address, and the
2344  * header must be long enough to contain the frame control
2345  * field.
2346  */
2347 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2348 {
2349         if (ieee80211_has_a4(hdr->frame_control))
2350                 return hdr->addr4;
2351         if (ieee80211_has_fromds(hdr->frame_control))
2352                 return hdr->addr3;
2353         return hdr->addr2;
2354 }
2355
2356 /**
2357  * ieee80211_get_DA - get pointer to DA
2358  * @hdr: the frame
2359  *
2360  * Given an 802.11 frame, this function returns the offset
2361  * to the destination address (DA). It does not verify that
2362  * the header is long enough to contain the address, and the
2363  * header must be long enough to contain the frame control
2364  * field.
2365  */
2366 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2367 {
2368         if (ieee80211_has_tods(hdr->frame_control))
2369                 return hdr->addr3;
2370         else
2371                 return hdr->addr1;
2372 }
2373
2374 /**
2375  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2376  * @hdr: the frame (buffer must include at least the first octet of payload)
2377  */
2378 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2379 {
2380         if (ieee80211_is_disassoc(hdr->frame_control) ||
2381             ieee80211_is_deauth(hdr->frame_control))
2382                 return true;
2383
2384         if (ieee80211_is_action(hdr->frame_control)) {
2385                 u8 *category;
2386
2387                 /*
2388                  * Action frames, excluding Public Action frames, are Robust
2389                  * Management Frames. However, if we are looking at a Protected
2390                  * frame, skip the check since the data may be encrypted and
2391                  * the frame has already been found to be a Robust Management
2392                  * Frame (by the other end).
2393                  */
2394                 if (ieee80211_has_protected(hdr->frame_control))
2395                         return true;
2396                 category = ((u8 *) hdr) + 24;
2397                 return *category != WLAN_CATEGORY_PUBLIC &&
2398                         *category != WLAN_CATEGORY_HT &&
2399                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2400                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2401         }
2402
2403         return false;
2404 }
2405
2406 /**
2407  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
2408  * @skb: the skb containing the frame, length will be checked
2409  */
2410 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
2411 {
2412         if (skb->len < 25)
2413                 return false;
2414         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
2415 }
2416
2417 /**
2418  * ieee80211_is_public_action - check if frame is a public action frame
2419  * @hdr: the frame
2420  * @len: length of the frame
2421  */
2422 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2423                                               size_t len)
2424 {
2425         struct ieee80211_mgmt *mgmt = (void *)hdr;
2426
2427         if (len < IEEE80211_MIN_ACTION_SIZE)
2428                 return false;
2429         if (!ieee80211_is_action(hdr->frame_control))
2430                 return false;
2431         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2432 }
2433
2434 /**
2435  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2436  * @tu: the TUs
2437  */
2438 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2439 {
2440         return 1024 * tu;
2441 }
2442
2443 /**
2444  * ieee80211_check_tim - check if AID bit is set in TIM
2445  * @tim: the TIM IE
2446  * @tim_len: length of the TIM IE
2447  * @aid: the AID to look for
2448  */
2449 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2450                                        u8 tim_len, u16 aid)
2451 {
2452         u8 mask;
2453         u8 index, indexn1, indexn2;
2454
2455         if (unlikely(!tim || tim_len < sizeof(*tim)))
2456                 return false;
2457
2458         aid &= 0x3fff;
2459         index = aid / 8;
2460         mask  = 1 << (aid & 7);
2461
2462         indexn1 = tim->bitmap_ctrl & 0xfe;
2463         indexn2 = tim_len + indexn1 - 4;
2464
2465         if (index < indexn1 || index > indexn2)
2466                 return false;
2467
2468         index -= indexn1;
2469
2470         return !!(tim->virtual_map[index] & mask);
2471 }
2472
2473 /**
2474  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
2475  * @skb: the skb containing the frame, length will not be checked
2476  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
2477  *
2478  * This function assumes the frame is a data frame, and that the network header
2479  * is in the correct place.
2480  */
2481 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
2482 {
2483         if (!skb_is_nonlinear(skb) &&
2484             skb->len > (skb_network_offset(skb) + 2)) {
2485                 /* Point to where the indication of TDLS should start */
2486                 const u8 *tdls_data = skb_network_header(skb) - 2;
2487
2488                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
2489                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
2490                     tdls_data[3] == WLAN_CATEGORY_TDLS)
2491                         return tdls_data[4];
2492         }
2493
2494         return -1;
2495 }
2496
2497 /* convert time units */
2498 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
2499 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
2500
2501 /**
2502  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
2503  * @skb: the skb containing the frame, length will be checked
2504  *
2505  * This function checks if it's either TPC report action frame or Link
2506  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
2507  * and 8.5.7.5 accordingly.
2508  */
2509 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
2510 {
2511         struct ieee80211_mgmt *mgmt = (void *)skb->data;
2512
2513         if (!ieee80211_is_action(mgmt->frame_control))
2514                 return false;
2515
2516         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
2517                        sizeof(mgmt->u.action.u.tpc_report))
2518                 return false;
2519
2520         /*
2521          * TPC report - check that:
2522          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
2523          * spectrum management action = 3 (TPC/Link Measurement report)
2524          * TPC report EID = 35
2525          * TPC report element length = 2
2526          *
2527          * The spectrum management's tpc_report struct is used here both for
2528          * parsing tpc_report and radio measurement's link measurement report
2529          * frame, since the relevant part is identical in both frames.
2530          */
2531         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
2532             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
2533                 return false;
2534
2535         /* both spectrum mgmt and link measurement have same action code */
2536         if (mgmt->u.action.u.tpc_report.action_code !=
2537             WLAN_ACTION_SPCT_TPC_RPRT)
2538                 return false;
2539
2540         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
2541             mgmt->u.action.u.tpc_report.tpc_elem_length !=
2542             sizeof(struct ieee80211_tpc_report_ie))
2543                 return false;
2544
2545         return true;
2546 }
2547
2548 #endif /* LINUX_IEEE80211_H */