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  * Copyright (c) 2016 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #ifndef LINUX_IEEE80211_H
  18 #define LINUX_IEEE80211_H
  19
  20 #include <linux/types.h>
  21 #include <linux/if_ether.h>
  22 #include <asm/byteorder.h>
  23 #include <asm/unaligned.h>
  24
  25 /*
  26  * DS bit usage
  27  *
  28  * TA = transmitter address
  29  * RA = receiver address
  30  * DA = destination address
  31  * SA = source address
  32  *
  33  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  34  * -----------------------------------------------------------------
  35  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  36  *  0       1       DA      BSSID   SA      -       AP -> STA
  37  *  1       0       BSSID   SA      DA      -       AP <- STA
  38  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  39  */
  40
  41 #define FCS_LEN 4
  42
  43 #define IEEE80211_FCTL_VERS             0x0003
  44 #define IEEE80211_FCTL_FTYPE            0x000c
  45 #define IEEE80211_FCTL_STYPE            0x00f0
  46 #define IEEE80211_FCTL_TODS             0x0100
  47 #define IEEE80211_FCTL_FROMDS           0x0200
  48 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  49 #define IEEE80211_FCTL_RETRY            0x0800
  50 #define IEEE80211_FCTL_PM               0x1000
  51 #define IEEE80211_FCTL_MOREDATA         0x2000
  52 #define IEEE80211_FCTL_PROTECTED        0x4000
  53 #define IEEE80211_FCTL_ORDER            0x8000
  54 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  55
  56 #define IEEE80211_SCTL_FRAG             0x000F
  57 #define IEEE80211_SCTL_SEQ              0xFFF0
  58
  59 #define IEEE80211_FTYPE_MGMT            0x0000
  60 #define IEEE80211_FTYPE_CTL             0x0004
  61 #define IEEE80211_FTYPE_DATA            0x0008
  62 #define IEEE80211_FTYPE_EXT             0x000c
  63
  64 /* management */
  65 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  66 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  67 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  68 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  69 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  70 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  71 #define IEEE80211_STYPE_BEACON          0x0080
  72 #define IEEE80211_STYPE_ATIM            0x0090
  73 #define IEEE80211_STYPE_DISASSOC        0x00A0
  74 #define IEEE80211_STYPE_AUTH            0x00B0
  75 #define IEEE80211_STYPE_DEAUTH          0x00C0
  76 #define IEEE80211_STYPE_ACTION          0x00D0
  77
  78 /* control */
  79 #define IEEE80211_STYPE_CTL_EXT         0x0060
  80 #define IEEE80211_STYPE_BACK_REQ        0x0080
  81 #define IEEE80211_STYPE_BACK            0x0090
  82 #define IEEE80211_STYPE_PSPOLL          0x00A0
  83 #define IEEE80211_STYPE_RTS             0x00B0
  84 #define IEEE80211_STYPE_CTS             0x00C0
  85 #define IEEE80211_STYPE_ACK             0x00D0
  86 #define IEEE80211_STYPE_CFEND           0x00E0
  87 #define IEEE80211_STYPE_CFENDACK        0x00F0
  88
  89 /* data */
  90 #define IEEE80211_STYPE_DATA                    0x0000
  91 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  92 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  93 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  94 #define IEEE80211_STYPE_NULLFUNC                0x0040
  95 #define IEEE80211_STYPE_CFACK                   0x0050
  96 #define IEEE80211_STYPE_CFPOLL                  0x0060
  97 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  98 #define IEEE80211_STYPE_QOS_DATA                0x0080
  99 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
 100 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
 101 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
 102 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 103 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 104 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 105 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 106
 107 /* extension, added by 802.11ad */
 108 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 109
 110 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 111 #define IEEE80211_CTL_EXT_POLL          0x2000
 112 #define IEEE80211_CTL_EXT_SPR           0x3000
 113 #define IEEE80211_CTL_EXT_GRANT 0x4000
 114 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 115 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 116 #define IEEE80211_CTL_EXT_SSW           0x8000
 117 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 118 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 119
 120
 121 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 122 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 123 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 124
 125 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 126 {
 127         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 128 }
 129
 130 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 131 {
 132         return (sn1 + sn2) & IEEE80211_SN_MASK;
 133 }
 134
 135 static inline u16 ieee80211_sn_inc(u16 sn)
 136 {
 137         return ieee80211_sn_add(sn, 1);
 138 }
 139
 140 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 141 {
 142         return (sn1 - sn2) & IEEE80211_SN_MASK;
 143 }
 144
 145 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 146 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 147
 148 /* miscellaneous IEEE 802.11 constants */
 149 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 150 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 151 #define IEEE80211_MAX_AID               2007
 152 #define IEEE80211_MAX_TIM_LEN           251
 153 #define IEEE80211_MAX_MESH_PEERINGS     63
 154 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 155    6.2.1.1.2.
 156
 157    802.11e clarifies the figure in section 7.1.2. The frame body is
 158    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 159 #define IEEE80211_MAX_DATA_LEN          2304
 160 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 161  * to 7920 bytes, see 8.2.3 General frame format
 162  */
 163 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 164 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 165 #define IEEE80211_MAX_FRAME_LEN         2352
 166
 167 /* Maximal size of an A-MSDU */
 168 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 169 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 170
 171 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 172 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 173 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 174
 175 #define IEEE80211_MAX_SSID_LEN          32
 176
 177 #define IEEE80211_MAX_MESH_ID_LEN       32
 178
 179 #define IEEE80211_FIRST_TSPEC_TSID      8
 180 #define IEEE80211_NUM_TIDS              16
 181
 182 /* number of user priorities 802.11 uses */
 183 #define IEEE80211_NUM_UPS               8
 184
 185 #define IEEE80211_QOS_CTL_LEN           2
 186 /* 1d tag mask */
 187 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 188 /* TID mask */
 189 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 190 /* EOSP */
 191 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 192 /* ACK policy */
 193 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 194 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 195 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 196 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 197 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 198 /* A-MSDU 802.11n */
 199 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 200 /* Mesh Control 802.11s */
 201 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 202
 203 /* Mesh Power Save Level */
 204 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 205 /* Mesh Receiver Service Period Initiated */
 206 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 207
 208 /* U-APSD queue for WMM IEs sent by AP */
 209 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 210 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 211
 212 /* U-APSD queues for WMM IEs sent by STA */
 213 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 214 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 215 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 216 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 217 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 218
 219 /* U-APSD max SP length for WMM IEs sent by STA */
 220 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 221 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 222 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 223 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 224 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 225 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 226
 227 #define IEEE80211_HT_CTL_LEN            4
 228
 229 struct ieee80211_hdr {
 230         __le16 frame_control;
 231         __le16 duration_id;
 232         u8 addr1[ETH_ALEN];
 233         u8 addr2[ETH_ALEN];
 234         u8 addr3[ETH_ALEN];
 235         __le16 seq_ctrl;
 236         u8 addr4[ETH_ALEN];
 237 } __packed __aligned(2);
 238
 239 struct ieee80211_hdr_3addr {
 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 } __packed __aligned(2);
 247
 248 struct ieee80211_qos_hdr {
 249         __le16 frame_control;
 250         __le16 duration_id;
 251         u8 addr1[ETH_ALEN];
 252         u8 addr2[ETH_ALEN];
 253         u8 addr3[ETH_ALEN];
 254         __le16 seq_ctrl;
 255         __le16 qos_ctrl;
 256 } __packed __aligned(2);
 257
 258 /**
 259  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 260  * @fc: frame control bytes in little-endian byteorder
 261  */
 262 static inline bool ieee80211_has_tods(__le16 fc)
 263 {
 264         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 265 }
 266
 267 /**
 268  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 269  * @fc: frame control bytes in little-endian byteorder
 270  */
 271 static inline bool ieee80211_has_fromds(__le16 fc)
 272 {
 273         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 274 }
 275
 276 /**
 277  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 278  * @fc: frame control bytes in little-endian byteorder
 279  */
 280 static inline bool ieee80211_has_a4(__le16 fc)
 281 {
 282         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 283         return (fc & tmp) == tmp;
 284 }
 285
 286 /**
 287  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 288  * @fc: frame control bytes in little-endian byteorder
 289  */
 290 static inline bool ieee80211_has_morefrags(__le16 fc)
 291 {
 292         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 293 }
 294
 295 /**
 296  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 297  * @fc: frame control bytes in little-endian byteorder
 298  */
 299 static inline bool ieee80211_has_retry(__le16 fc)
 300 {
 301         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 302 }
 303
 304 /**
 305  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 306  * @fc: frame control bytes in little-endian byteorder
 307  */
 308 static inline bool ieee80211_has_pm(__le16 fc)
 309 {
 310         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 311 }
 312
 313 /**
 314  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 315  * @fc: frame control bytes in little-endian byteorder
 316  */
 317 static inline bool ieee80211_has_moredata(__le16 fc)
 318 {
 319         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 320 }
 321
 322 /**
 323  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 324  * @fc: frame control bytes in little-endian byteorder
 325  */
 326 static inline bool ieee80211_has_protected(__le16 fc)
 327 {
 328         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 329 }
 330
 331 /**
 332  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 333  * @fc: frame control bytes in little-endian byteorder
 334  */
 335 static inline bool ieee80211_has_order(__le16 fc)
 336 {
 337         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 338 }
 339
 340 /**
 341  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 342  * @fc: frame control bytes in little-endian byteorder
 343  */
 344 static inline bool ieee80211_is_mgmt(__le16 fc)
 345 {
 346         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 347                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 348 }
 349
 350 /**
 351  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 352  * @fc: frame control bytes in little-endian byteorder
 353  */
 354 static inline bool ieee80211_is_ctl(__le16 fc)
 355 {
 356         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 357                cpu_to_le16(IEEE80211_FTYPE_CTL);
 358 }
 359
 360 /**
 361  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 362  * @fc: frame control bytes in little-endian byteorder
 363  */
 364 static inline bool ieee80211_is_data(__le16 fc)
 365 {
 366         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 367                cpu_to_le16(IEEE80211_FTYPE_DATA);
 368 }
 369
 370 /**
 371  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 372  * @fc: frame control bytes in little-endian byteorder
 373  */
 374 static inline bool ieee80211_is_data_qos(__le16 fc)
 375 {
 376         /*
 377          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 378          * to check the one bit
 379          */
 380         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 381                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 382 }
 383
 384 /**
 385  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 386  * @fc: frame control bytes in little-endian byteorder
 387  */
 388 static inline bool ieee80211_is_data_present(__le16 fc)
 389 {
 390         /*
 391          * mask with 0x40 and test that that bit is clear to only return true
 392          * for the data-containing substypes.
 393          */
 394         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 395                cpu_to_le16(IEEE80211_FTYPE_DATA);
 396 }
 397
 398 /**
 399  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 400  * @fc: frame control bytes in little-endian byteorder
 401  */
 402 static inline bool ieee80211_is_assoc_req(__le16 fc)
 403 {
 404         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 405                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 406 }
 407
 408 /**
 409  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 410  * @fc: frame control bytes in little-endian byteorder
 411  */
 412 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 413 {
 414         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 415                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 416 }
 417
 418 /**
 419  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 420  * @fc: frame control bytes in little-endian byteorder
 421  */
 422 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 423 {
 424         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 425                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 426 }
 427
 428 /**
 429  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 430  * @fc: frame control bytes in little-endian byteorder
 431  */
 432 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 433 {
 434         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 435                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 436 }
 437
 438 /**
 439  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 440  * @fc: frame control bytes in little-endian byteorder
 441  */
 442 static inline bool ieee80211_is_probe_req(__le16 fc)
 443 {
 444         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 445                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 446 }
 447
 448 /**
 449  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 450  * @fc: frame control bytes in little-endian byteorder
 451  */
 452 static inline bool ieee80211_is_probe_resp(__le16 fc)
 453 {
 454         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 455                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 456 }
 457
 458 /**
 459  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 460  * @fc: frame control bytes in little-endian byteorder
 461  */
 462 static inline bool ieee80211_is_beacon(__le16 fc)
 463 {
 464         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 465                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 466 }
 467
 468 /**
 469  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 470  * @fc: frame control bytes in little-endian byteorder
 471  */
 472 static inline bool ieee80211_is_atim(__le16 fc)
 473 {
 474         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 475                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 476 }
 477
 478 /**
 479  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 480  * @fc: frame control bytes in little-endian byteorder
 481  */
 482 static inline bool ieee80211_is_disassoc(__le16 fc)
 483 {
 484         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 485                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 486 }
 487
 488 /**
 489  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 490  * @fc: frame control bytes in little-endian byteorder
 491  */
 492 static inline bool ieee80211_is_auth(__le16 fc)
 493 {
 494         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 495                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 496 }
 497
 498 /**
 499  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 500  * @fc: frame control bytes in little-endian byteorder
 501  */
 502 static inline bool ieee80211_is_deauth(__le16 fc)
 503 {
 504         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 505                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 506 }
 507
 508 /**
 509  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 510  * @fc: frame control bytes in little-endian byteorder
 511  */
 512 static inline bool ieee80211_is_action(__le16 fc)
 513 {
 514         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 515                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 516 }
 517
 518 /**
 519  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 520  * @fc: frame control bytes in little-endian byteorder
 521  */
 522 static inline bool ieee80211_is_back_req(__le16 fc)
 523 {
 524         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 525                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 526 }
 527
 528 /**
 529  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 530  * @fc: frame control bytes in little-endian byteorder
 531  */
 532 static inline bool ieee80211_is_back(__le16 fc)
 533 {
 534         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 535                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 536 }
 537
 538 /**
 539  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 540  * @fc: frame control bytes in little-endian byteorder
 541  */
 542 static inline bool ieee80211_is_pspoll(__le16 fc)
 543 {
 544         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 545                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 546 }
 547
 548 /**
 549  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 550  * @fc: frame control bytes in little-endian byteorder
 551  */
 552 static inline bool ieee80211_is_rts(__le16 fc)
 553 {
 554         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 555                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 556 }
 557
 558 /**
 559  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 560  * @fc: frame control bytes in little-endian byteorder
 561  */
 562 static inline bool ieee80211_is_cts(__le16 fc)
 563 {
 564         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 565                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 566 }
 567
 568 /**
 569  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 570  * @fc: frame control bytes in little-endian byteorder
 571  */
 572 static inline bool ieee80211_is_ack(__le16 fc)
 573 {
 574         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 575                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 576 }
 577
 578 /**
 579  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 580  * @fc: frame control bytes in little-endian byteorder
 581  */
 582 static inline bool ieee80211_is_cfend(__le16 fc)
 583 {
 584         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 585                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 586 }
 587
 588 /**
 589  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 590  * @fc: frame control bytes in little-endian byteorder
 591  */
 592 static inline bool ieee80211_is_cfendack(__le16 fc)
 593 {
 594         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 595                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 596 }
 597
 598 /**
 599  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 600  * @fc: frame control bytes in little-endian byteorder
 601  */
 602 static inline bool ieee80211_is_nullfunc(__le16 fc)
 603 {
 604         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 605                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 606 }
 607
 608 /**
 609  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 610  * @fc: frame control bytes in little-endian byteorder
 611  */
 612 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 613 {
 614         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 615                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 616 }
 617
 618 /**
 619  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 620  * @fc: frame control field in little-endian byteorder
 621  */
 622 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 623 {
 624         /* IEEE 802.11-2012, definition of "bufferable management frame";
 625          * note that this ignores the IBSS special case. */
 626         return ieee80211_is_mgmt(fc) &&
 627                (ieee80211_is_action(fc) ||
 628                 ieee80211_is_disassoc(fc) ||
 629                 ieee80211_is_deauth(fc));
 630 }
 631
 632 /**
 633  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 634  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 635  */
 636 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 637 {
 638         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 639 }
 640
 641 struct ieee80211s_hdr {
 642         u8 flags;
 643         u8 ttl;
 644         __le32 seqnum;
 645         u8 eaddr1[ETH_ALEN];
 646         u8 eaddr2[ETH_ALEN];
 647 } __packed __aligned(2);
 648
 649 /* Mesh flags */
 650 #define MESH_FLAGS_AE_A4        0x1
 651 #define MESH_FLAGS_AE_A5_A6     0x2
 652 #define MESH_FLAGS_AE           0x3
 653 #define MESH_FLAGS_PS_DEEP      0x4
 654
 655 /**
 656  * enum ieee80211_preq_flags - mesh PREQ element flags
 657  *
 658  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 659  */
 660 enum ieee80211_preq_flags {
 661         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 662 };
 663
 664 /**
 665  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 666  *
 667  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 668  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 669  */
 670 enum ieee80211_preq_target_flags {
 671         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 672         IEEE80211_PREQ_USN_FLAG = 1<<2,
 673 };
 674
 675 /**
 676  * struct ieee80211_quiet_ie
 677  *
 678  * This structure refers to "Quiet information element"
 679  */
 680 struct ieee80211_quiet_ie {
 681         u8 count;
 682         u8 period;
 683         __le16 duration;
 684         __le16 offset;
 685 } __packed;
 686
 687 /**
 688  * struct ieee80211_msrment_ie
 689  *
 690  * This structure refers to "Measurement Request/Report information element"
 691  */
 692 struct ieee80211_msrment_ie {
 693         u8 token;
 694         u8 mode;
 695         u8 type;
 696         u8 request[0];
 697 } __packed;
 698
 699 /**
 700  * struct ieee80211_channel_sw_ie
 701  *
 702  * This structure refers to "Channel Switch Announcement information element"
 703  */
 704 struct ieee80211_channel_sw_ie {
 705         u8 mode;
 706         u8 new_ch_num;
 707         u8 count;
 708 } __packed;
 709
 710 /**
 711  * struct ieee80211_ext_chansw_ie
 712  *
 713  * This structure represents the "Extended Channel Switch Announcement element"
 714  */
 715 struct ieee80211_ext_chansw_ie {
 716         u8 mode;
 717         u8 new_operating_class;
 718         u8 new_ch_num;
 719         u8 count;
 720 } __packed;
 721
 722 /**
 723  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 724  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 725  *      values here
 726  * This structure represents the "Secondary Channel Offset element"
 727  */
 728 struct ieee80211_sec_chan_offs_ie {
 729         u8 sec_chan_offs;
 730 } __packed;
 731
 732 /**
 733  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 734  *
 735  * This structure represents the "Mesh Channel Switch Paramters element"
 736  */
 737 struct ieee80211_mesh_chansw_params_ie {
 738         u8 mesh_ttl;
 739         u8 mesh_flags;
 740         __le16 mesh_reason;
 741         __le16 mesh_pre_value;
 742 } __packed;
 743
 744 /**
 745  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 746  */
 747 struct ieee80211_wide_bw_chansw_ie {
 748         u8 new_channel_width;
 749         u8 new_center_freq_seg0, new_center_freq_seg1;
 750 } __packed;
 751
 752 /**
 753  * struct ieee80211_tim
 754  *
 755  * This structure refers to "Traffic Indication Map information element"
 756  */
 757 struct ieee80211_tim_ie {
 758         u8 dtim_count;
 759         u8 dtim_period;
 760         u8 bitmap_ctrl;
 761         /* variable size: 1 - 251 bytes */
 762         u8 virtual_map[1];
 763 } __packed;
 764
 765 /**
 766  * struct ieee80211_meshconf_ie
 767  *
 768  * This structure refers to "Mesh Configuration information element"
 769  */
 770 struct ieee80211_meshconf_ie {
 771         u8 meshconf_psel;
 772         u8 meshconf_pmetric;
 773         u8 meshconf_congest;
 774         u8 meshconf_synch;
 775         u8 meshconf_auth;
 776         u8 meshconf_form;
 777         u8 meshconf_cap;
 778 } __packed;
 779
 780 /**
 781  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 782  *
 783  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 784  *      additional mesh peerings with other mesh STAs
 785  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 786  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 787  *      is ongoing
 788  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 789  *      neighbors in deep sleep mode
 790  */
 791 enum mesh_config_capab_flags {
 792         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 793         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 794         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 795         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 796 };
 797
 798 /**
 799  * mesh channel switch parameters element's flag indicator
 800  *
 801  */
 802 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 803 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 804 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 805
 806 /**
 807  * struct ieee80211_rann_ie
 808  *
 809  * This structure refers to "Root Announcement information element"
 810  */
 811 struct ieee80211_rann_ie {
 812         u8 rann_flags;
 813         u8 rann_hopcount;
 814         u8 rann_ttl;
 815         u8 rann_addr[ETH_ALEN];
 816         __le32 rann_seq;
 817         __le32 rann_interval;
 818         __le32 rann_metric;
 819 } __packed;
 820
 821 enum ieee80211_rann_flags {
 822         RANN_FLAG_IS_GATE = 1 << 0,
 823 };
 824
 825 enum ieee80211_ht_chanwidth_values {
 826         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 827         IEEE80211_HT_CHANWIDTH_ANY = 1,
 828 };
 829
 830 /**
 831  * enum ieee80211_opmode_bits - VHT operating mode field bits
 832  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 833  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 834  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 835  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 836  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 837  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 838  *      (the NSS value is the value of this field + 1)
 839  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 840  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 841  *      using a beamforming steering matrix
 842  */
 843 enum ieee80211_vht_opmode_bits {
 844         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 845         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 846         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 847         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 848         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 849         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 850         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 851         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 852 };
 853
 854 #define WLAN_SA_QUERY_TR_ID_LEN 2
 855 #define WLAN_MEMBERSHIP_LEN 8
 856 #define WLAN_USER_POSITION_LEN 16
 857
 858 /**
 859  * struct ieee80211_tpc_report_ie
 860  *
 861  * This structure refers to "TPC Report element"
 862  */
 863 struct ieee80211_tpc_report_ie {
 864         u8 tx_power;
 865         u8 link_margin;
 866 } __packed;
 867
 868 struct ieee80211_mgmt {
 869         __le16 frame_control;
 870         __le16 duration;
 871         u8 da[ETH_ALEN];
 872         u8 sa[ETH_ALEN];
 873         u8 bssid[ETH_ALEN];
 874         __le16 seq_ctrl;
 875         union {
 876                 struct {
 877                         __le16 auth_alg;
 878                         __le16 auth_transaction;
 879                         __le16 status_code;
 880                         /* possibly followed by Challenge text */
 881                         u8 variable[0];
 882                 } __packed auth;
 883                 struct {
 884                         __le16 reason_code;
 885                 } __packed deauth;
 886                 struct {
 887                         __le16 capab_info;
 888                         __le16 listen_interval;
 889                         /* followed by SSID and Supported rates */
 890                         u8 variable[0];
 891                 } __packed assoc_req;
 892                 struct {
 893                         __le16 capab_info;
 894                         __le16 status_code;
 895                         __le16 aid;
 896                         /* followed by Supported rates */
 897                         u8 variable[0];
 898                 } __packed assoc_resp, reassoc_resp;
 899                 struct {
 900                         __le16 capab_info;
 901                         __le16 listen_interval;
 902                         u8 current_ap[ETH_ALEN];
 903                         /* followed by SSID and Supported rates */
 904                         u8 variable[0];
 905                 } __packed reassoc_req;
 906                 struct {
 907                         __le16 reason_code;
 908                 } __packed disassoc;
 909                 struct {
 910                         __le64 timestamp;
 911                         __le16 beacon_int;
 912                         __le16 capab_info;
 913                         /* followed by some of SSID, Supported rates,
 914                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 915                         u8 variable[0];
 916                 } __packed beacon;
 917                 struct {
 918                         /* only variable items: SSID, Supported rates */
 919                         u8 variable[0];
 920                 } __packed probe_req;
 921                 struct {
 922                         __le64 timestamp;
 923                         __le16 beacon_int;
 924                         __le16 capab_info;
 925                         /* followed by some of SSID, Supported rates,
 926                          * FH Params, DS Params, CF Params, IBSS Params */
 927                         u8 variable[0];
 928                 } __packed probe_resp;
 929                 struct {
 930                         u8 category;
 931                         union {
 932                                 struct {
 933                                         u8 action_code;
 934                                         u8 dialog_token;
 935                                         u8 status_code;
 936                                         u8 variable[0];
 937                                 } __packed wme_action;
 938                                 struct{
 939                                         u8 action_code;
 940                                         u8 variable[0];
 941                                 } __packed chan_switch;
 942                                 struct{
 943                                         u8 action_code;
 944                                         struct ieee80211_ext_chansw_ie data;
 945                                         u8 variable[0];
 946                                 } __packed ext_chan_switch;
 947                                 struct{
 948                                         u8 action_code;
 949                                         u8 dialog_token;
 950                                         u8 element_id;
 951                                         u8 length;
 952                                         struct ieee80211_msrment_ie msr_elem;
 953                                 } __packed measurement;
 954                                 struct{
 955                                         u8 action_code;
 956                                         u8 dialog_token;
 957                                         __le16 capab;
 958                                         __le16 timeout;
 959                                         __le16 start_seq_num;
 960                                 } __packed addba_req;
 961                                 struct{
 962                                         u8 action_code;
 963                                         u8 dialog_token;
 964                                         __le16 status;
 965                                         __le16 capab;
 966                                         __le16 timeout;
 967                                 } __packed addba_resp;
 968                                 struct{
 969                                         u8 action_code;
 970                                         __le16 params;
 971                                         __le16 reason_code;
 972                                 } __packed delba;
 973                                 struct {
 974                                         u8 action_code;
 975                                         u8 variable[0];
 976                                 } __packed self_prot;
 977                                 struct{
 978                                         u8 action_code;
 979                                         u8 variable[0];
 980                                 } __packed mesh_action;
 981                                 struct {
 982                                         u8 action;
 983                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 984                                 } __packed sa_query;
 985                                 struct {
 986                                         u8 action;
 987                                         u8 smps_control;
 988                                 } __packed ht_smps;
 989                                 struct {
 990                                         u8 action_code;
 991                                         u8 chanwidth;
 992                                 } __packed ht_notify_cw;
 993                                 struct {
 994                                         u8 action_code;
 995                                         u8 dialog_token;
 996                                         __le16 capability;
 997                                         u8 variable[0];
 998                                 } __packed tdls_discover_resp;
 999                                 struct {
1000                                         u8 action_code;
1001                                         u8 operating_mode;
1002                                 } __packed vht_opmode_notif;
1003                                 struct {
1004                                         u8 action_code;
1005                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1006                                         u8 position[WLAN_USER_POSITION_LEN];
1007                                 } __packed vht_group_notif;
1008                                 struct {
1009                                         u8 action_code;
1010                                         u8 dialog_token;
1011                                         u8 tpc_elem_id;
1012                                         u8 tpc_elem_length;
1013                                         struct ieee80211_tpc_report_ie tpc;
1014                                 } __packed tpc_report;
1015                                 struct {
1016                                         u8 action_code;
1017                                         u8 dialog_token;
1018                                         u8 follow_up;
1019                                         u8 tod[6];
1020                                         u8 toa[6];
1021                                         __le16 tod_error;
1022                                         __le16 toa_error;
1023                                         u8 variable[0];
1024                                 } __packed ftm;
1025                         } u;
1026                 } __packed action;
1027         } u;
1028 } __packed __aligned(2);
1029
1030 /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
1031 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1032
1033 /* mgmt header + 1 byte category code */
1034 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1035
1036
1037 /* Management MIC information element (IEEE 802.11w) */
1038 struct ieee80211_mmie {
1039         u8 element_id;
1040         u8 length;
1041         __le16 key_id;
1042         u8 sequence_number[6];
1043         u8 mic[8];
1044 } __packed;
1045
1046 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1047 struct ieee80211_mmie_16 {
1048         u8 element_id;
1049         u8 length;
1050         __le16 key_id;
1051         u8 sequence_number[6];
1052         u8 mic[16];
1053 } __packed;
1054
1055 struct ieee80211_vendor_ie {
1056         u8 element_id;
1057         u8 len;
1058         u8 oui[3];
1059         u8 oui_type;
1060 } __packed;
1061
1062 struct ieee80211_wmm_ac_param {
1063         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1064         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1065         __le16 txop_limit;
1066 } __packed;
1067
1068 struct ieee80211_wmm_param_ie {
1069         u8 element_id; /* Element ID: 221 (0xdd); */
1070         u8 len; /* Length: 24 */
1071         /* required fields for WMM version 1 */
1072         u8 oui[3]; /* 00:50:f2 */
1073         u8 oui_type; /* 2 */
1074         u8 oui_subtype; /* 1 */
1075         u8 version; /* 1 for WMM version 1.0 */
1076         u8 qos_info; /* AP/STA specific QoS info */
1077         u8 reserved; /* 0 */
1078         /* AC_BE, AC_BK, AC_VI, AC_VO */
1079         struct ieee80211_wmm_ac_param ac[4];
1080 } __packed;
1081
1082 /* Control frames */
1083 struct ieee80211_rts {
1084         __le16 frame_control;
1085         __le16 duration;
1086         u8 ra[ETH_ALEN];
1087         u8 ta[ETH_ALEN];
1088 } __packed __aligned(2);
1089
1090 struct ieee80211_cts {
1091         __le16 frame_control;
1092         __le16 duration;
1093         u8 ra[ETH_ALEN];
1094 } __packed __aligned(2);
1095
1096 struct ieee80211_pspoll {
1097         __le16 frame_control;
1098         __le16 aid;
1099         u8 bssid[ETH_ALEN];
1100         u8 ta[ETH_ALEN];
1101 } __packed __aligned(2);
1102
1103 /* TDLS */
1104
1105 /* Channel switch timing */
1106 struct ieee80211_ch_switch_timing {
1107         __le16 switch_time;
1108         __le16 switch_timeout;
1109 } __packed;
1110
1111 /* Link-id information element */
1112 struct ieee80211_tdls_lnkie {
1113         u8 ie_type; /* Link Identifier IE */
1114         u8 ie_len;
1115         u8 bssid[ETH_ALEN];
1116         u8 init_sta[ETH_ALEN];
1117         u8 resp_sta[ETH_ALEN];
1118 } __packed;
1119
1120 struct ieee80211_tdls_data {
1121         u8 da[ETH_ALEN];
1122         u8 sa[ETH_ALEN];
1123         __be16 ether_type;
1124         u8 payload_type;
1125         u8 category;
1126         u8 action_code;
1127         union {
1128                 struct {
1129                         u8 dialog_token;
1130                         __le16 capability;
1131                         u8 variable[0];
1132                 } __packed setup_req;
1133                 struct {
1134                         __le16 status_code;
1135                         u8 dialog_token;
1136                         __le16 capability;
1137                         u8 variable[0];
1138                 } __packed setup_resp;
1139                 struct {
1140                         __le16 status_code;
1141                         u8 dialog_token;
1142                         u8 variable[0];
1143                 } __packed setup_cfm;
1144                 struct {
1145                         __le16 reason_code;
1146                         u8 variable[0];
1147                 } __packed teardown;
1148                 struct {
1149                         u8 dialog_token;
1150                         u8 variable[0];
1151                 } __packed discover_req;
1152                 struct {
1153                         u8 target_channel;
1154                         u8 oper_class;
1155                         u8 variable[0];
1156                 } __packed chan_switch_req;
1157                 struct {
1158                         __le16 status_code;
1159                         u8 variable[0];
1160                 } __packed chan_switch_resp;
1161         } u;
1162 } __packed;
1163
1164 /*
1165  * Peer-to-Peer IE attribute related definitions.
1166  */
1167 /**
1168  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1169  */
1170 enum ieee80211_p2p_attr_id {
1171         IEEE80211_P2P_ATTR_STATUS = 0,
1172         IEEE80211_P2P_ATTR_MINOR_REASON,
1173         IEEE80211_P2P_ATTR_CAPABILITY,
1174         IEEE80211_P2P_ATTR_DEVICE_ID,
1175         IEEE80211_P2P_ATTR_GO_INTENT,
1176         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1177         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1178         IEEE80211_P2P_ATTR_GROUP_BSSID,
1179         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1180         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1181         IEEE80211_P2P_ATTR_MANAGABILITY,
1182         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1183         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1184         IEEE80211_P2P_ATTR_DEVICE_INFO,
1185         IEEE80211_P2P_ATTR_GROUP_INFO,
1186         IEEE80211_P2P_ATTR_GROUP_ID,
1187         IEEE80211_P2P_ATTR_INTERFACE,
1188         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1189         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1190         /* 19 - 220: Reserved */
1191         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1192
1193         IEEE80211_P2P_ATTR_MAX
1194 };
1195
1196 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1197 /* Typical max value used here */
1198 #define IEEE80211_P2P_NOA_DESC_MAX      4
1199
1200 struct ieee80211_p2p_noa_desc {
1201         u8 count;
1202         __le32 duration;
1203         __le32 interval;
1204         __le32 start_time;
1205 } __packed;
1206
1207 struct ieee80211_p2p_noa_attr {
1208         u8 index;
1209         u8 oppps_ctwindow;
1210         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1211 } __packed;
1212
1213 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1214 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1215
1216 /**
1217  * struct ieee80211_bar - HT Block Ack Request
1218  *
1219  * This structure refers to "HT BlockAckReq" as
1220  * described in 802.11n draft section 7.2.1.7.1
1221  */
1222 struct ieee80211_bar {
1223         __le16 frame_control;
1224         __le16 duration;
1225         __u8 ra[ETH_ALEN];
1226         __u8 ta[ETH_ALEN];
1227         __le16 control;
1228         __le16 start_seq_num;
1229 } __packed;
1230
1231 /* 802.11 BAR control masks */
1232 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1233 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1234 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1235 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1236 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1237
1238 #define IEEE80211_HT_MCS_MASK_LEN               10
1239
1240 /**
1241  * struct ieee80211_mcs_info - MCS information
1242  * @rx_mask: RX mask
1243  * @rx_highest: highest supported RX rate. If set represents
1244  *      the highest supported RX data rate in units of 1 Mbps.
1245  *      If this field is 0 this value should not be used to
1246  *      consider the highest RX data rate supported.
1247  * @tx_params: TX parameters
1248  */
1249 struct ieee80211_mcs_info {
1250         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1251         __le16 rx_highest;
1252         u8 tx_params;
1253         u8 reserved[3];
1254 } __packed;
1255
1256 /* 802.11n HT capability MSC set */
1257 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1258 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1259 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1260 /* value 0 == 1 stream etc */
1261 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1262 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1263 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1264 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1265
1266 /*
1267  * 802.11n D5.0 20.3.5 / 20.6 says:
1268  * - indices 0 to 7 and 32 are single spatial stream
1269  * - 8 to 31 are multiple spatial streams using equal modulation
1270  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1271  * - remainder are multiple spatial streams using unequal modulation
1272  */
1273 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1274 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1275         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1276
1277 /**
1278  * struct ieee80211_ht_cap - HT capabilities
1279  *
1280  * This structure is the "HT capabilities element" as
1281  * described in 802.11n D5.0 7.3.2.57
1282  */
1283 struct ieee80211_ht_cap {
1284         __le16 cap_info;
1285         u8 ampdu_params_info;
1286
1287         /* 16 bytes MCS information */
1288         struct ieee80211_mcs_info mcs;
1289
1290         __le16 extended_ht_cap_info;
1291         __le32 tx_BF_cap_info;
1292         u8 antenna_selection_info;
1293 } __packed;
1294
1295 /* 802.11n HT capabilities masks (for cap_info) */
1296 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1297 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1298 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1299 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1300 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1301 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1302 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1303 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1304 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1305 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1306 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1307 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1308 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1309 #define IEEE80211_HT_CAP_RESERVED               0x2000
1310 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1311 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1312
1313 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1314 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1315 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1316 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1317 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1318 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1319 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1320 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1321
1322 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1323 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1324 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1325 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1326
1327 /*
1328  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1329  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1330  */
1331 enum ieee80211_max_ampdu_length_exp {
1332         IEEE80211_HT_MAX_AMPDU_8K = 0,
1333         IEEE80211_HT_MAX_AMPDU_16K = 1,
1334         IEEE80211_HT_MAX_AMPDU_32K = 2,
1335         IEEE80211_HT_MAX_AMPDU_64K = 3
1336 };
1337
1338 /*
1339  * Maximum length of AMPDU that the STA can receive in VHT.
1340  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1341  */
1342 enum ieee80211_vht_max_ampdu_length_exp {
1343         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1344         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1345         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1346         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1347         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1348         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1349         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1350         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1351 };
1352
1353 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1354
1355 /* Minimum MPDU start spacing */
1356 enum ieee80211_min_mpdu_spacing {
1357         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1358         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1359         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1360         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1361         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1362         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1363         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1364         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1365 };
1366
1367 /**
1368  * struct ieee80211_ht_operation - HT operation IE
1369  *
1370  * This structure is the "HT operation element" as
1371  * described in 802.11n-2009 7.3.2.57
1372  */
1373 struct ieee80211_ht_operation {
1374         u8 primary_chan;
1375         u8 ht_param;
1376         __le16 operation_mode;
1377         __le16 stbc_param;
1378         u8 basic_set[16];
1379 } __packed;
1380
1381 /* for ht_param */
1382 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1383 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1384 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1385 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1386 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1387 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1388
1389 /* for operation_mode */
1390 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1391 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1392 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1393 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1394 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1395 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1396 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1397
1398 /* for stbc_param */
1399 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1400 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1401 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1402 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1403 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1404 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1405
1406
1407 /* block-ack parameters */
1408 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1409 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1410 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1411 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1412 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1413 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1414
1415 /*
1416  * A-PMDU buffer sizes
1417  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
1418  */
1419 #define IEEE80211_MIN_AMPDU_BUF 0x8
1420 #define IEEE80211_MAX_AMPDU_BUF 0x40
1421
1422
1423 /* Spatial Multiplexing Power Save Modes (for capability) */
1424 #define WLAN_HT_CAP_SM_PS_STATIC        0
1425 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1426 #define WLAN_HT_CAP_SM_PS_INVALID       2
1427 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1428
1429 /* for SM power control field lower two bits */
1430 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1431 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1432 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1433
1434 /**
1435  * struct ieee80211_vht_mcs_info - VHT MCS information
1436  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1437  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1438  *      STA can receive. Rate expressed in units of 1 Mbps.
1439  *      If this field is 0 this value should not be used to
1440  *      consider the highest RX data rate supported.
1441  *      The top 3 bits of this field are reserved.
1442  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1443  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1444  *      STA can transmit. Rate expressed in units of 1 Mbps.
1445  *      If this field is 0 this value should not be used to
1446  *      consider the highest TX data rate supported.
1447  *      The top 3 bits of this field are reserved.
1448  */
1449 struct ieee80211_vht_mcs_info {
1450         __le16 rx_mcs_map;
1451         __le16 rx_highest;
1452         __le16 tx_mcs_map;
1453         __le16 tx_highest;
1454 } __packed;
1455
1456 /**
1457  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1458  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1459  *      number of streams
1460  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1461  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1462  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1463  *
1464  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1465  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1466  * both split into 8 subfields by number of streams. These values indicate
1467  * which MCSes are supported for the number of streams the value appears
1468  * for.
1469  */
1470 enum ieee80211_vht_mcs_support {
1471         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1472         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1473         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1474         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1475 };
1476
1477 /**
1478  * struct ieee80211_vht_cap - VHT capabilities
1479  *
1480  * This structure is the "VHT capabilities element" as
1481  * described in 802.11ac D3.0 8.4.2.160
1482  * @vht_cap_info: VHT capability info
1483  * @supp_mcs: VHT MCS supported rates
1484  */
1485 struct ieee80211_vht_cap {
1486         __le32 vht_cap_info;
1487         struct ieee80211_vht_mcs_info supp_mcs;
1488 } __packed;
1489
1490 /**
1491  * enum ieee80211_vht_chanwidth - VHT channel width
1492  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1493  *      determine the channel width (20 or 40 MHz)
1494  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1495  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1496  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1497  */
1498 enum ieee80211_vht_chanwidth {
1499         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1500         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1501         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1502         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1503 };
1504
1505 /**
1506  * struct ieee80211_vht_operation - VHT operation IE
1507  *
1508  * This structure is the "VHT operation element" as
1509  * described in 802.11ac D3.0 8.4.2.161
1510  * @chan_width: Operating channel width
1511  * @center_freq_seg1_idx: center freq segment 1 index
1512  * @center_freq_seg2_idx: center freq segment 2 index
1513  * @basic_mcs_set: VHT Basic MCS rate set
1514  */
1515 struct ieee80211_vht_operation {
1516         u8 chan_width;
1517         u8 center_freq_seg1_idx;
1518         u8 center_freq_seg2_idx;
1519         __le16 basic_mcs_set;
1520 } __packed;
1521
1522
1523 /* 802.11ac VHT Capabilities */
1524 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1525 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1526 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1527 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
1528 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1529 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1530 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1531 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1532 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1533 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1534 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1535 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1536 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1537 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1538 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1539 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1540 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1541 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1542 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1543 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1544                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1545 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1546 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1547                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1548 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1549 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1550 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1551 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1552 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1553 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1554                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1555 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1556 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1557 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1558 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1559
1560 /* Authentication algorithms */
1561 #define WLAN_AUTH_OPEN 0
1562 #define WLAN_AUTH_SHARED_KEY 1
1563 #define WLAN_AUTH_FT 2
1564 #define WLAN_AUTH_SAE 3
1565 #define WLAN_AUTH_LEAP 128
1566
1567 #define WLAN_AUTH_CHALLENGE_LEN 128
1568
1569 #define WLAN_CAPABILITY_ESS             (1<<0)
1570 #define WLAN_CAPABILITY_IBSS            (1<<1)
1571
1572 /*
1573  * A mesh STA sets the ESS and IBSS capability bits to zero.
1574  * however, this holds true for p2p probe responses (in the p2p_find
1575  * phase) as well.
1576  */
1577 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
1578         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
1579
1580 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
1581 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
1582 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
1583 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
1584 #define WLAN_CAPABILITY_PBCC            (1<<6)
1585 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
1586
1587 /* 802.11h */
1588 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
1589 #define WLAN_CAPABILITY_QOS             (1<<9)
1590 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
1591 #define WLAN_CAPABILITY_APSD            (1<<11)
1592 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
1593 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
1594 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
1595 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
1596
1597 /* DMG (60gHz) 802.11ad */
1598 /* type - bits 0..1 */
1599 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
1600 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
1601 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
1602 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
1603
1604 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
1605 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
1606 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
1607 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
1608
1609 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
1610 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
1611
1612 /* measurement */
1613 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
1614 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
1615 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
1616
1617 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
1618 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
1619 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
1620
1621 /* 802.11g ERP information element */
1622 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
1623 #define WLAN_ERP_USE_PROTECTION (1<<1)
1624 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
1625
1626 /* WLAN_ERP_BARKER_PREAMBLE values */
1627 enum {
1628         WLAN_ERP_PREAMBLE_SHORT = 0,
1629         WLAN_ERP_PREAMBLE_LONG = 1,
1630 };
1631
1632 /* Band ID, 802.11ad #8.4.1.45 */
1633 enum {
1634         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
1635         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
1636         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
1637         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
1638         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
1639         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
1640 };
1641
1642 /* Status codes */
1643 enum ieee80211_statuscode {
1644         WLAN_STATUS_SUCCESS = 0,
1645         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
1646         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
1647         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
1648         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
1649         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
1650         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
1651         WLAN_STATUS_CHALLENGE_FAIL = 15,
1652         WLAN_STATUS_AUTH_TIMEOUT = 16,
1653         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
1654         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
1655         /* 802.11b */
1656         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
1657         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
1658         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
1659         /* 802.11h */
1660         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
1661         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
1662         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
1663         /* 802.11g */
1664         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
1665         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
1666         /* 802.11w */
1667         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
1668         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
1669         /* 802.11i */
1670         WLAN_STATUS_INVALID_IE = 40,
1671         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
1672         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
1673         WLAN_STATUS_INVALID_AKMP = 43,
1674         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
1675         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
1676         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
1677         /* 802.11e */
1678         WLAN_STATUS_UNSPECIFIED_QOS = 32,
1679         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
1680         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
1681         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
1682         WLAN_STATUS_REQUEST_DECLINED = 37,
1683         WLAN_STATUS_INVALID_QOS_PARAM = 38,
1684         WLAN_STATUS_CHANGE_TSPEC = 39,
1685         WLAN_STATUS_WAIT_TS_DELAY = 47,
1686         WLAN_STATUS_NO_DIRECT_LINK = 48,
1687         WLAN_STATUS_STA_NOT_PRESENT = 49,
1688         WLAN_STATUS_STA_NOT_QSTA = 50,
1689         /* 802.11s */
1690         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
1691         WLAN_STATUS_FCG_NOT_SUPP = 78,
1692         WLAN_STATUS_STA_NO_TBTT = 78,
1693         /* 802.11ad */
1694         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
1695         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
1696         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
1697         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
1698         WLAN_STATUS_PERFORMING_FST_NOW = 87,
1699         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
1700         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
1701         WLAN_STATUS_REJECT_DSE_BAND = 96,
1702         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
1703         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
1704 };
1705
1706
1707 /* Reason codes */
1708 enum ieee80211_reasoncode {
1709         WLAN_REASON_UNSPECIFIED = 1,
1710         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
1711         WLAN_REASON_DEAUTH_LEAVING = 3,
1712         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
1713         WLAN_REASON_DISASSOC_AP_BUSY = 5,
1714         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
1715         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
1716         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
1717         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
1718         /* 802.11h */
1719         WLAN_REASON_DISASSOC_BAD_POWER = 10,
1720         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
1721         /* 802.11i */
1722         WLAN_REASON_INVALID_IE = 13,
1723         WLAN_REASON_MIC_FAILURE = 14,
1724         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
1725         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
1726         WLAN_REASON_IE_DIFFERENT = 17,
1727         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
1728         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
1729         WLAN_REASON_INVALID_AKMP = 20,
1730         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
1731         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
1732         WLAN_REASON_IEEE8021X_FAILED = 23,
1733         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
1734         /* TDLS (802.11z) */
1735         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
1736         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
1737         /* 802.11e */
1738         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
1739         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
1740         WLAN_REASON_DISASSOC_LOW_ACK = 34,
1741         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
1742         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
1743         WLAN_REASON_QSTA_NOT_USE = 37,
1744         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
1745         WLAN_REASON_QSTA_TIMEOUT = 39,
1746         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
1747         /* 802.11s */
1748         WLAN_REASON_MESH_PEER_CANCELED = 52,
1749         WLAN_REASON_MESH_MAX_PEERS = 53,
1750         WLAN_REASON_MESH_CONFIG = 54,
1751         WLAN_REASON_MESH_CLOSE = 55,
1752         WLAN_REASON_MESH_MAX_RETRIES = 56,
1753         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
1754         WLAN_REASON_MESH_INVALID_GTK = 58,
1755         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
1756         WLAN_REASON_MESH_INVALID_SECURITY = 60,
1757         WLAN_REASON_MESH_PATH_ERROR = 61,
1758         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
1759         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
1760         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
1761         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
1762         WLAN_REASON_MESH_CHAN = 66,
1763 };
1764
1765
1766 /* Information Element IDs */
1767 enum ieee80211_eid {
1768         WLAN_EID_SSID = 0,
1769         WLAN_EID_SUPP_RATES = 1,
1770         WLAN_EID_FH_PARAMS = 2, /* reserved now */
1771         WLAN_EID_DS_PARAMS = 3,
1772         WLAN_EID_CF_PARAMS = 4,
1773         WLAN_EID_TIM = 5,
1774         WLAN_EID_IBSS_PARAMS = 6,
1775         WLAN_EID_COUNTRY = 7,
1776         /* 8, 9 reserved */
1777         WLAN_EID_REQUEST = 10,
1778         WLAN_EID_QBSS_LOAD = 11,
1779         WLAN_EID_EDCA_PARAM_SET = 12,
1780         WLAN_EID_TSPEC = 13,
1781         WLAN_EID_TCLAS = 14,
1782         WLAN_EID_SCHEDULE = 15,
1783         WLAN_EID_CHALLENGE = 16,
1784         /* 17-31 reserved for challenge text extension */
1785         WLAN_EID_PWR_CONSTRAINT = 32,
1786         WLAN_EID_PWR_CAPABILITY = 33,
1787         WLAN_EID_TPC_REQUEST = 34,
1788         WLAN_EID_TPC_REPORT = 35,
1789         WLAN_EID_SUPPORTED_CHANNELS = 36,
1790         WLAN_EID_CHANNEL_SWITCH = 37,
1791         WLAN_EID_MEASURE_REQUEST = 38,
1792         WLAN_EID_MEASURE_REPORT = 39,
1793         WLAN_EID_QUIET = 40,
1794         WLAN_EID_IBSS_DFS = 41,
1795         WLAN_EID_ERP_INFO = 42,
1796         WLAN_EID_TS_DELAY = 43,
1797         WLAN_EID_TCLAS_PROCESSING = 44,
1798         WLAN_EID_HT_CAPABILITY = 45,
1799         WLAN_EID_QOS_CAPA = 46,
1800         /* 47 reserved for Broadcom */
1801         WLAN_EID_RSN = 48,
1802         WLAN_EID_802_15_COEX = 49,
1803         WLAN_EID_EXT_SUPP_RATES = 50,
1804         WLAN_EID_AP_CHAN_REPORT = 51,
1805         WLAN_EID_NEIGHBOR_REPORT = 52,
1806         WLAN_EID_RCPI = 53,
1807         WLAN_EID_MOBILITY_DOMAIN = 54,
1808         WLAN_EID_FAST_BSS_TRANSITION = 55,
1809         WLAN_EID_TIMEOUT_INTERVAL = 56,
1810         WLAN_EID_RIC_DATA = 57,
1811         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
1812         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
1813         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
1814         WLAN_EID_HT_OPERATION = 61,
1815         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
1816         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
1817         WLAN_EID_ANTENNA_INFO = 64,
1818         WLAN_EID_RSNI = 65,
1819         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
1820         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
1821         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
1822         WLAN_EID_TIME_ADVERTISEMENT = 69,
1823         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
1824         WLAN_EID_MULTIPLE_BSSID = 71,
1825         WLAN_EID_BSS_COEX_2040 = 72,
1826         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
1827         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
1828         WLAN_EID_RIC_DESCRIPTOR = 75,
1829         WLAN_EID_MMIE = 76,
1830         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
1831         WLAN_EID_EVENT_REQUEST = 78,
1832         WLAN_EID_EVENT_REPORT = 79,
1833         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
1834         WLAN_EID_DIAGNOSTIC_REPORT = 81,
1835         WLAN_EID_LOCATION_PARAMS = 82,
1836         WLAN_EID_NON_TX_BSSID_CAP =  83,
1837         WLAN_EID_SSID_LIST = 84,
1838         WLAN_EID_MULTI_BSSID_IDX = 85,
1839         WLAN_EID_FMS_DESCRIPTOR = 86,
1840         WLAN_EID_FMS_REQUEST = 87,
1841         WLAN_EID_FMS_RESPONSE = 88,
1842         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
1843         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
1844         WLAN_EID_TSF_REQUEST = 91,
1845         WLAN_EID_TSF_RESPOSNE = 92,
1846         WLAN_EID_WNM_SLEEP_MODE = 93,
1847         WLAN_EID_TIM_BCAST_REQ = 94,
1848         WLAN_EID_TIM_BCAST_RESP = 95,
1849         WLAN_EID_COLL_IF_REPORT = 96,
1850         WLAN_EID_CHANNEL_USAGE = 97,
1851         WLAN_EID_TIME_ZONE = 98,
1852         WLAN_EID_DMS_REQUEST = 99,
1853         WLAN_EID_DMS_RESPONSE = 100,
1854         WLAN_EID_LINK_ID = 101,
1855         WLAN_EID_WAKEUP_SCHEDUL = 102,
1856         /* 103 reserved */
1857         WLAN_EID_CHAN_SWITCH_TIMING = 104,
1858         WLAN_EID_PTI_CONTROL = 105,
1859         WLAN_EID_PU_BUFFER_STATUS = 106,
1860         WLAN_EID_INTERWORKING = 107,
1861         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
1862         WLAN_EID_EXPEDITED_BW_REQ = 109,
1863         WLAN_EID_QOS_MAP_SET = 110,
1864         WLAN_EID_ROAMING_CONSORTIUM = 111,
1865         WLAN_EID_EMERGENCY_ALERT = 112,
1866         WLAN_EID_MESH_CONFIG = 113,
1867         WLAN_EID_MESH_ID = 114,
1868         WLAN_EID_LINK_METRIC_REPORT = 115,
1869         WLAN_EID_CONGESTION_NOTIFICATION = 116,
1870         WLAN_EID_PEER_MGMT = 117,
1871         WLAN_EID_CHAN_SWITCH_PARAM = 118,
1872         WLAN_EID_MESH_AWAKE_WINDOW = 119,
1873         WLAN_EID_BEACON_TIMING = 120,
1874         WLAN_EID_MCCAOP_SETUP_REQ = 121,
1875         WLAN_EID_MCCAOP_SETUP_RESP = 122,
1876         WLAN_EID_MCCAOP_ADVERT = 123,
1877         WLAN_EID_MCCAOP_TEARDOWN = 124,
1878         WLAN_EID_GANN = 125,
1879         WLAN_EID_RANN = 126,
1880         WLAN_EID_EXT_CAPABILITY = 127,
1881         /* 128, 129 reserved for Agere */
1882         WLAN_EID_PREQ = 130,
1883         WLAN_EID_PREP = 131,
1884         WLAN_EID_PERR = 132,
1885         /* 133-136 reserved for Cisco */
1886         WLAN_EID_PXU = 137,
1887         WLAN_EID_PXUC = 138,
1888         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
1889         WLAN_EID_MIC = 140,
1890         WLAN_EID_DESTINATION_URI = 141,
1891         WLAN_EID_UAPSD_COEX = 142,
1892         WLAN_EID_WAKEUP_SCHEDULE = 143,
1893         WLAN_EID_EXT_SCHEDULE = 144,
1894         WLAN_EID_STA_AVAILABILITY = 145,
1895         WLAN_EID_DMG_TSPEC = 146,
1896         WLAN_EID_DMG_AT = 147,
1897         WLAN_EID_DMG_CAP = 148,
1898         /* 149 reserved for Cisco */
1899         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
1900         WLAN_EID_DMG_OPERATION = 151,
1901         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
1902         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
1903         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
1904         /* 155-156 reserved for Cisco */
1905         WLAN_EID_AWAKE_WINDOW = 157,
1906         WLAN_EID_MULTI_BAND = 158,
1907         WLAN_EID_ADDBA_EXT = 159,
1908         WLAN_EID_NEXT_PCP_LIST = 160,
1909         WLAN_EID_PCP_HANDOVER = 161,
1910         WLAN_EID_DMG_LINK_MARGIN = 162,
1911         WLAN_EID_SWITCHING_STREAM = 163,
1912         WLAN_EID_SESSION_TRANSITION = 164,
1913         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
1914         WLAN_EID_CLUSTER_REPORT = 166,
1915         WLAN_EID_RELAY_CAP = 167,
1916         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
1917         WLAN_EID_BEAM_LINK_MAINT = 169,
1918         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
1919         WLAN_EID_U_PID = 171,
1920         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
1921         /* 173 reserved for Symbol */
1922         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
1923         WLAN_EID_QUIET_PERIOD_REQ = 175,
1924         /* 176 reserved for Symbol */
1925         WLAN_EID_QUIET_PERIOD_RESP = 177,
1926         /* 178-179 reserved for Symbol */
1927         /* 180 reserved for ISO/IEC 20011 */
1928         WLAN_EID_EPAC_POLICY = 182,
1929         WLAN_EID_CLISTER_TIME_OFF = 183,
1930         WLAN_EID_INTER_AC_PRIO = 184,
1931         WLAN_EID_SCS_DESCRIPTOR = 185,
1932         WLAN_EID_QLOAD_REPORT = 186,
1933         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
1934         WLAN_EID_HL_STREAM_ID = 188,
1935         WLAN_EID_GCR_GROUP_ADDR = 189,
1936         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
1937         WLAN_EID_VHT_CAPABILITY = 191,
1938         WLAN_EID_VHT_OPERATION = 192,
1939         WLAN_EID_EXTENDED_BSS_LOAD = 193,
1940         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
1941         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
1942         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
1943         WLAN_EID_AID = 197,
1944         WLAN_EID_QUIET_CHANNEL = 198,
1945         WLAN_EID_OPMODE_NOTIF = 199,
1946
1947         WLAN_EID_VENDOR_SPECIFIC = 221,
1948         WLAN_EID_QOS_PARAMETER = 222,
1949 };
1950
1951 /* Action category code */
1952 enum ieee80211_category {
1953         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
1954         WLAN_CATEGORY_QOS = 1,
1955         WLAN_CATEGORY_DLS = 2,
1956         WLAN_CATEGORY_BACK = 3,
1957         WLAN_CATEGORY_PUBLIC = 4,
1958         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
1959         WLAN_CATEGORY_HT = 7,
1960         WLAN_CATEGORY_SA_QUERY = 8,
1961         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
1962         WLAN_CATEGORY_WNM = 10,
1963         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
1964         WLAN_CATEGORY_TDLS = 12,
1965         WLAN_CATEGORY_MESH_ACTION = 13,
1966         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
1967         WLAN_CATEGORY_SELF_PROTECTED = 15,
1968         WLAN_CATEGORY_DMG = 16,
1969         WLAN_CATEGORY_WMM = 17,
1970         WLAN_CATEGORY_FST = 18,
1971         WLAN_CATEGORY_UNPROT_DMG = 20,
1972         WLAN_CATEGORY_VHT = 21,
1973         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
1974         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
1975 };
1976
1977 /* SPECTRUM_MGMT action code */
1978 enum ieee80211_spectrum_mgmt_actioncode {
1979         WLAN_ACTION_SPCT_MSR_REQ = 0,
1980         WLAN_ACTION_SPCT_MSR_RPRT = 1,
1981         WLAN_ACTION_SPCT_TPC_REQ = 2,
1982         WLAN_ACTION_SPCT_TPC_RPRT = 3,
1983         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
1984 };
1985
1986 /* HT action codes */
1987 enum ieee80211_ht_actioncode {
1988         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
1989         WLAN_HT_ACTION_SMPS = 1,
1990         WLAN_HT_ACTION_PSMP = 2,
1991         WLAN_HT_ACTION_PCO_PHASE = 3,
1992         WLAN_HT_ACTION_CSI = 4,
1993         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
1994         WLAN_HT_ACTION_COMPRESSED_BF = 6,
1995         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
1996 };
1997
1998 /* VHT action codes */
1999 enum ieee80211_vht_actioncode {
2000         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2001         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2002         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2003 };
2004
2005 /* Self Protected Action codes */
2006 enum ieee80211_self_protected_actioncode {
2007         WLAN_SP_RESERVED = 0,
2008         WLAN_SP_MESH_PEERING_OPEN = 1,
2009         WLAN_SP_MESH_PEERING_CONFIRM = 2,
2010         WLAN_SP_MESH_PEERING_CLOSE = 3,
2011         WLAN_SP_MGK_INFORM = 4,
2012         WLAN_SP_MGK_ACK = 5,
2013 };
2014
2015 /* Mesh action codes */
2016 enum ieee80211_mesh_actioncode {
2017         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2018         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2019         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2020         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2021         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2022         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2023         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2024         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2025         WLAN_MESH_ACTION_MCCA_TEARDOWN,
2026         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2027         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2028 };
2029
2030 /* Security key length */
2031 enum ieee80211_key_len {
2032         WLAN_KEY_LEN_WEP40 = 5,
2033         WLAN_KEY_LEN_WEP104 = 13,
2034         WLAN_KEY_LEN_CCMP = 16,
2035         WLAN_KEY_LEN_CCMP_256 = 32,
2036         WLAN_KEY_LEN_TKIP = 32,
2037         WLAN_KEY_LEN_AES_CMAC = 16,
2038         WLAN_KEY_LEN_SMS4 = 32,
2039         WLAN_KEY_LEN_GCMP = 16,
2040         WLAN_KEY_LEN_GCMP_256 = 32,
2041         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2042         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2043         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2044 };
2045
2046 #define IEEE80211_WEP_IV_LEN            4
2047 #define IEEE80211_WEP_ICV_LEN           4
2048 #define IEEE80211_CCMP_HDR_LEN          8
2049 #define IEEE80211_CCMP_MIC_LEN          8
2050 #define IEEE80211_CCMP_PN_LEN           6
2051 #define IEEE80211_CCMP_256_HDR_LEN      8
2052 #define IEEE80211_CCMP_256_MIC_LEN      16
2053 #define IEEE80211_CCMP_256_PN_LEN       6
2054 #define IEEE80211_TKIP_IV_LEN           8
2055 #define IEEE80211_TKIP_ICV_LEN          4
2056 #define IEEE80211_CMAC_PN_LEN           6
2057 #define IEEE80211_GMAC_PN_LEN           6
2058 #define IEEE80211_GCMP_HDR_LEN          8
2059 #define IEEE80211_GCMP_MIC_LEN          16
2060 #define IEEE80211_GCMP_PN_LEN           6
2061
2062 /* Public action codes */
2063 enum ieee80211_pub_actioncode {
2064         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2065         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2066 };
2067
2068 /* TDLS action codes */
2069 enum ieee80211_tdls_actioncode {
2070         WLAN_TDLS_SETUP_REQUEST = 0,
2071         WLAN_TDLS_SETUP_RESPONSE = 1,
2072         WLAN_TDLS_SETUP_CONFIRM = 2,
2073         WLAN_TDLS_TEARDOWN = 3,
2074         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2075         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2076         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2077         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2078         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2079         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2080         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2081 };
2082
2083 /* Extended Channel Switching capability to be set in the 1st byte of
2084  * the @WLAN_EID_EXT_CAPABILITY information element
2085  */
2086 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2087
2088 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2089 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2090 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2091 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2092
2093 /* Interworking capabilities are set in 7th bit of 4th byte of the
2094  * @WLAN_EID_EXT_CAPABILITY information element
2095  */
2096 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2097
2098 /*
2099  * TDLS capabililites to be enabled in the 5th byte of the
2100  * @WLAN_EID_EXT_CAPABILITY information element
2101  */
2102 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2103 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2104 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2105
2106 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
2107 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2108
2109 /* Defines the maximal number of MSDUs in an A-MSDU. */
2110 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
2111 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
2112
2113 /*
2114  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2115  * information element
2116  */
2117 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
2118
2119 /* TDLS specific payload type in the LLC/SNAP header */
2120 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2121
2122 /* BSS Coex IE information field bits */
2123 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2124
2125 /**
2126  * enum - mesh synchronization method identifier
2127  *
2128  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2129  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2130  *      that will be specified in a vendor specific information element
2131  */
2132 enum {
2133         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2134         IEEE80211_SYNC_METHOD_VENDOR = 255,
2135 };
2136
2137 /**
2138  * enum - mesh path selection protocol identifier
2139  *
2140  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2141  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2142  *      be specified in a vendor specific information element
2143  */
2144 enum {
2145         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2146         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2147 };
2148
2149 /**
2150  * enum - mesh path selection metric identifier
2151  *
2152  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2153  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2154  *      specified in a vendor specific information element
2155  */
2156 enum {
2157         IEEE80211_PATH_METRIC_AIRTIME = 1,
2158         IEEE80211_PATH_METRIC_VENDOR = 255,
2159 };
2160
2161 /**
2162  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2163  *
2164  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2165  *
2166  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2167  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2168  *      this value
2169  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2170  *      the proactive PREQ with proactive PREP subfield set to 0
2171  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2172  *      supports the proactive PREQ with proactive PREP subfield set to 1
2173  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2174  *      the proactive RANN
2175  */
2176 enum ieee80211_root_mode_identifier {
2177         IEEE80211_ROOTMODE_NO_ROOT = 0,
2178         IEEE80211_ROOTMODE_ROOT = 1,
2179         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2180         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2181         IEEE80211_PROACTIVE_RANN = 4,
2182 };
2183
2184 /*
2185  * IEEE 802.11-2007 7.3.2.9 Country information element
2186  *
2187  * Minimum length is 8 octets, ie len must be evenly
2188  * divisible by 2
2189  */
2190
2191 /* Although the spec says 8 I'm seeing 6 in practice */
2192 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2193
2194 /* The Country String field of the element shall be 3 octets in length */
2195 #define IEEE80211_COUNTRY_STRING_LEN    3
2196
2197 /*
2198  * For regulatory extension stuff see IEEE 802.11-2007
2199  * Annex I (page 1141) and Annex J (page 1147). Also
2200  * review 7.3.2.9.
2201  *
2202  * When dot11RegulatoryClassesRequired is true and the
2203  * first_channel/reg_extension_id is >= 201 then the IE
2204  * compromises of the 'ext' struct represented below:
2205  *
2206  *  - Regulatory extension ID - when generating IE this just needs
2207  *    to be monotonically increasing for each triplet passed in
2208  *    the IE
2209  *  - Regulatory class - index into set of rules
2210  *  - Coverage class - index into air propagation time (Table 7-27),
2211  *    in microseconds, you can compute the air propagation time from
2212  *    the index by multiplying by 3, so index 10 yields a propagation
2213  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2214  *    yet. A value of 0 inicates air propagation of <= 1 us.
2215  *
2216  *  See also Table I.2 for Emission limit sets and table
2217  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2218  *  a reg_class to an emission limit set and behavior limit set.
2219  */
2220 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2221
2222 /*
2223  *  Channels numbers in the IE must be monotonically increasing
2224  *  if dot11RegulatoryClassesRequired is not true.
2225  *
2226  *  If dot11RegulatoryClassesRequired is true consecutive
2227  *  subband triplets following a regulatory triplet shall
2228  *  have monotonically increasing first_channel number fields.
2229  *
2230  *  Channel numbers shall not overlap.
2231  *
2232  *  Note that max_power is signed.
2233  */
2234 struct ieee80211_country_ie_triplet {
2235         union {
2236                 struct {
2237                         u8 first_channel;
2238                         u8 num_channels;
2239                         s8 max_power;
2240                 } __packed chans;
2241                 struct {
2242                         u8 reg_extension_id;
2243                         u8 reg_class;
2244                         u8 coverage_class;
2245                 } __packed ext;
2246         };
2247 } __packed;
2248
2249 enum ieee80211_timeout_interval_type {
2250         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2251         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2252         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2253 };
2254
2255 /**
2256  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2257  * @type: type, see &enum ieee80211_timeout_interval_type
2258  * @value: timeout interval value
2259  */
2260 struct ieee80211_timeout_interval_ie {
2261         u8 type;
2262         __le32 value;
2263 } __packed;
2264
2265 /* BACK action code */
2266 enum ieee80211_back_actioncode {
2267         WLAN_ACTION_ADDBA_REQ = 0,
2268         WLAN_ACTION_ADDBA_RESP = 1,
2269         WLAN_ACTION_DELBA = 2,
2270 };
2271
2272 /* BACK (block-ack) parties */
2273 enum ieee80211_back_parties {
2274         WLAN_BACK_RECIPIENT = 0,
2275         WLAN_BACK_INITIATOR = 1,
2276 };
2277
2278 /* SA Query action */
2279 enum ieee80211_sa_query_action {
2280         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2281         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2282 };
2283
2284
2285 /* cipher suite selectors */
2286 #define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00
2287 #define WLAN_CIPHER_SUITE_WEP40         0x000FAC01
2288 #define WLAN_CIPHER_SUITE_TKIP          0x000FAC02
2289 /* reserved:                            0x000FAC03 */
2290 #define WLAN_CIPHER_SUITE_CCMP          0x000FAC04
2291 #define WLAN_CIPHER_SUITE_WEP104        0x000FAC05
2292 #define WLAN_CIPHER_SUITE_AES_CMAC      0x000FAC06
2293 #define WLAN_CIPHER_SUITE_GCMP          0x000FAC08
2294 #define WLAN_CIPHER_SUITE_GCMP_256      0x000FAC09
2295 #define WLAN_CIPHER_SUITE_CCMP_256      0x000FAC0A
2296 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  0x000FAC0B
2297 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  0x000FAC0C
2298 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  0x000FAC0D
2299
2300 #define WLAN_CIPHER_SUITE_SMS4          0x00147201
2301
2302 /* AKM suite selectors */
2303 #define WLAN_AKM_SUITE_8021X            0x000FAC01
2304 #define WLAN_AKM_SUITE_PSK              0x000FAC02
2305 #define WLAN_AKM_SUITE_8021X_SHA256     0x000FAC05
2306 #define WLAN_AKM_SUITE_PSK_SHA256       0x000FAC06
2307 #define WLAN_AKM_SUITE_TDLS             0x000FAC07
2308 #define WLAN_AKM_SUITE_SAE              0x000FAC08
2309 #define WLAN_AKM_SUITE_FT_OVER_SAE      0x000FAC09
2310
2311 #define WLAN_MAX_KEY_LEN                32
2312
2313 #define WLAN_PMKID_LEN                  16
2314
2315 #define WLAN_OUI_WFA                    0x506f9a
2316 #define WLAN_OUI_TYPE_WFA_P2P           9
2317 #define WLAN_OUI_MICROSOFT              0x0050f2
2318 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2319 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2320 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2321
2322 /*
2323  * WMM/802.11e Tspec Element
2324  */
2325 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2326 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2327
2328 enum ieee80211_tspec_status_code {
2329         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2330         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2331 };
2332
2333 struct ieee80211_tspec_ie {
2334         u8 element_id;
2335         u8 len;
2336         u8 oui[3];
2337         u8 oui_type;
2338         u8 oui_subtype;
2339         u8 version;
2340         __le16 tsinfo;
2341         u8 tsinfo_resvd;
2342         __le16 nominal_msdu;
2343         __le16 max_msdu;
2344         __le32 min_service_int;
2345         __le32 max_service_int;
2346         __le32 inactivity_int;
2347         __le32 suspension_int;
2348         __le32 service_start_time;
2349         __le32 min_data_rate;
2350         __le32 mean_data_rate;
2351         __le32 peak_data_rate;
2352         __le32 max_burst_size;
2353         __le32 delay_bound;
2354         __le32 min_phy_rate;
2355         __le16 sba;
2356         __le16 medium_time;
2357 } __packed;
2358
2359 /**
2360  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2361  * @hdr: the frame
2362  *
2363  * The qos ctrl bytes come after the frame_control, duration, seq_num
2364  * and 3 or 4 addresses of length ETH_ALEN.
2365  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2366  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2367  */
2368 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2369 {
2370         if (ieee80211_has_a4(hdr->frame_control))
2371                 return (u8 *)hdr + 30;
2372         else
2373                 return (u8 *)hdr + 24;
2374 }
2375
2376 /**
2377  * ieee80211_get_SA - get pointer to SA
2378  * @hdr: the frame
2379  *
2380  * Given an 802.11 frame, this function returns the offset
2381  * to the source address (SA). It does not verify that the
2382  * header is long enough to contain the address, and the
2383  * header must be long enough to contain the frame control
2384  * field.
2385  */
2386 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2387 {
2388         if (ieee80211_has_a4(hdr->frame_control))
2389                 return hdr->addr4;
2390         if (ieee80211_has_fromds(hdr->frame_control))
2391                 return hdr->addr3;
2392         return hdr->addr2;
2393 }
2394
2395 /**
2396  * ieee80211_get_DA - get pointer to DA
2397  * @hdr: the frame
2398  *
2399  * Given an 802.11 frame, this function returns the offset
2400  * to the destination address (DA). It does not verify that
2401  * the header is long enough to contain the address, and the
2402  * header must be long enough to contain the frame control
2403  * field.
2404  */
2405 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2406 {
2407         if (ieee80211_has_tods(hdr->frame_control))
2408                 return hdr->addr3;
2409         else
2410                 return hdr->addr1;
2411 }
2412
2413 /**
2414  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2415  * @hdr: the frame (buffer must include at least the first octet of payload)
2416  */
2417 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2418 {
2419         if (ieee80211_is_disassoc(hdr->frame_control) ||
2420             ieee80211_is_deauth(hdr->frame_control))
2421                 return true;
2422
2423         if (ieee80211_is_action(hdr->frame_control)) {
2424                 u8 *category;
2425
2426                 /*
2427                  * Action frames, excluding Public Action frames, are Robust
2428                  * Management Frames. However, if we are looking at a Protected
2429                  * frame, skip the check since the data may be encrypted and
2430                  * the frame has already been found to be a Robust Management
2431                  * Frame (by the other end).
2432                  */
2433                 if (ieee80211_has_protected(hdr->frame_control))
2434                         return true;
2435                 category = ((u8 *) hdr) + 24;
2436                 return *category != WLAN_CATEGORY_PUBLIC &&
2437                         *category != WLAN_CATEGORY_HT &&
2438                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
2439                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
2440                         *category != WLAN_CATEGORY_UNPROT_DMG &&
2441                         *category != WLAN_CATEGORY_VHT &&
2442                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
2443         }
2444
2445         return false;
2446 }
2447
2448 /**
2449  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
2450  * @skb: the skb containing the frame, length will be checked
2451  */
2452 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
2453 {
2454         if (skb->len < 25)
2455                 return false;
2456         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
2457 }
2458
2459 /**
2460  * ieee80211_is_public_action - check if frame is a public action frame
2461  * @hdr: the frame
2462  * @len: length of the frame
2463  */
2464 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
2465                                               size_t len)
2466 {
2467         struct ieee80211_mgmt *mgmt = (void *)hdr;
2468
2469         if (len < IEEE80211_MIN_ACTION_SIZE)
2470                 return false;
2471         if (!ieee80211_is_action(hdr->frame_control))
2472                 return false;
2473         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
2474 }
2475
2476 /**
2477  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
2478  * @tu: the TUs
2479  */
2480 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
2481 {
2482         return 1024 * tu;
2483 }
2484
2485 /**
2486  * ieee80211_check_tim - check if AID bit is set in TIM
2487  * @tim: the TIM IE
2488  * @tim_len: length of the TIM IE
2489  * @aid: the AID to look for
2490  */
2491 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
2492                                        u8 tim_len, u16 aid)
2493 {
2494         u8 mask;
2495         u8 index, indexn1, indexn2;
2496
2497         if (unlikely(!tim || tim_len < sizeof(*tim)))
2498                 return false;
2499
2500         aid &= 0x3fff;
2501         index = aid / 8;
2502         mask  = 1 << (aid & 7);
2503
2504         indexn1 = tim->bitmap_ctrl & 0xfe;
2505         indexn2 = tim_len + indexn1 - 4;
2506
2507         if (index < indexn1 || index > indexn2)
2508                 return false;
2509
2510         index -= indexn1;
2511
2512         return !!(tim->virtual_map[index] & mask);
2513 }
2514
2515 /**
2516  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
2517  * @skb: the skb containing the frame, length will not be checked
2518  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
2519  *
2520  * This function assumes the frame is a data frame, and that the network header
2521  * is in the correct place.
2522  */
2523 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
2524 {
2525         if (!skb_is_nonlinear(skb) &&
2526             skb->len > (skb_network_offset(skb) + 2)) {
2527                 /* Point to where the indication of TDLS should start */
2528                 const u8 *tdls_data = skb_network_header(skb) - 2;
2529
2530                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
2531                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
2532                     tdls_data[3] == WLAN_CATEGORY_TDLS)
2533                         return tdls_data[4];
2534         }
2535
2536         return -1;
2537 }
2538
2539 /* convert time units */
2540 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
2541 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
2542
2543 /**
2544  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
2545  * @skb: the skb containing the frame, length will be checked
2546  *
2547  * This function checks if it's either TPC report action frame or Link
2548  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
2549  * and 8.5.7.5 accordingly.
2550  */
2551 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
2552 {
2553         struct ieee80211_mgmt *mgmt = (void *)skb->data;
2554
2555         if (!ieee80211_is_action(mgmt->frame_control))
2556                 return false;
2557
2558         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
2559                        sizeof(mgmt->u.action.u.tpc_report))
2560                 return false;
2561
2562         /*
2563          * TPC report - check that:
2564          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
2565          * spectrum management action = 3 (TPC/Link Measurement report)
2566          * TPC report EID = 35
2567          * TPC report element length = 2
2568          *
2569          * The spectrum management's tpc_report struct is used here both for
2570          * parsing tpc_report and radio measurement's link measurement report
2571          * frame, since the relevant part is identical in both frames.
2572          */
2573         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
2574             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
2575                 return false;
2576
2577         /* both spectrum mgmt and link measurement have same action code */
2578         if (mgmt->u.action.u.tpc_report.action_code !=
2579             WLAN_ACTION_SPCT_TPC_RPRT)
2580                 return false;
2581
2582         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
2583             mgmt->u.action.u.tpc_report.tpc_elem_length !=
2584             sizeof(struct ieee80211_tpc_report_ie))
2585                 return false;
2586
2587         return true;
2588 }
2589
2590 #endif /* LINUX_IEEE80211_H */