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 - 2017 Intel Deutschland GmbH
  11  * Copyright (c) 2018        Intel Corporation
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  */
  17
  18 #ifndef LINUX_IEEE80211_H
  19 #define LINUX_IEEE80211_H
  20
  21 #include <linux/types.h>
  22 #include <linux/if_ether.h>
  23 #include <linux/etherdevice.h>
  24 #include <asm/byteorder.h>
  25 #include <asm/unaligned.h>
  26
  27 /*
  28  * DS bit usage
  29  *
  30  * TA = transmitter address
  31  * RA = receiver address
  32  * DA = destination address
  33  * SA = source address
  34  *
  35  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  36  * -----------------------------------------------------------------
  37  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  38  *  0       1       DA      BSSID   SA      -       AP -> STA
  39  *  1       0       BSSID   SA      DA      -       AP <- STA
  40  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  41  */
  42
  43 #define FCS_LEN 4
  44
  45 #define IEEE80211_FCTL_VERS             0x0003
  46 #define IEEE80211_FCTL_FTYPE            0x000c
  47 #define IEEE80211_FCTL_STYPE            0x00f0
  48 #define IEEE80211_FCTL_TODS             0x0100
  49 #define IEEE80211_FCTL_FROMDS           0x0200
  50 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  51 #define IEEE80211_FCTL_RETRY            0x0800
  52 #define IEEE80211_FCTL_PM               0x1000
  53 #define IEEE80211_FCTL_MOREDATA         0x2000
  54 #define IEEE80211_FCTL_PROTECTED        0x4000
  55 #define IEEE80211_FCTL_ORDER            0x8000
  56 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  57
  58 #define IEEE80211_SCTL_FRAG             0x000F
  59 #define IEEE80211_SCTL_SEQ              0xFFF0
  60
  61 #define IEEE80211_FTYPE_MGMT            0x0000
  62 #define IEEE80211_FTYPE_CTL             0x0004
  63 #define IEEE80211_FTYPE_DATA            0x0008
  64 #define IEEE80211_FTYPE_EXT             0x000c
  65
  66 /* management */
  67 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  68 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  69 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  70 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  71 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  72 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  73 #define IEEE80211_STYPE_BEACON          0x0080
  74 #define IEEE80211_STYPE_ATIM            0x0090
  75 #define IEEE80211_STYPE_DISASSOC        0x00A0
  76 #define IEEE80211_STYPE_AUTH            0x00B0
  77 #define IEEE80211_STYPE_DEAUTH          0x00C0
  78 #define IEEE80211_STYPE_ACTION          0x00D0
  79
  80 /* control */
  81 #define IEEE80211_STYPE_CTL_EXT         0x0060
  82 #define IEEE80211_STYPE_BACK_REQ        0x0080
  83 #define IEEE80211_STYPE_BACK            0x0090
  84 #define IEEE80211_STYPE_PSPOLL          0x00A0
  85 #define IEEE80211_STYPE_RTS             0x00B0
  86 #define IEEE80211_STYPE_CTS             0x00C0
  87 #define IEEE80211_STYPE_ACK             0x00D0
  88 #define IEEE80211_STYPE_CFEND           0x00E0
  89 #define IEEE80211_STYPE_CFENDACK        0x00F0
  90
  91 /* data */
  92 #define IEEE80211_STYPE_DATA                    0x0000
  93 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  94 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  95 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  96 #define IEEE80211_STYPE_NULLFUNC                0x0040
  97 #define IEEE80211_STYPE_CFACK                   0x0050
  98 #define IEEE80211_STYPE_CFPOLL                  0x0060
  99 #define IEEE80211_STYPE_CFACKPOLL               0x0070
 100 #define IEEE80211_STYPE_QOS_DATA                0x0080
 101 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
 102 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
 103 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
 104 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 105 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 106 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 107 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 108
 109 /* extension, added by 802.11ad */
 110 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 111
 112 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 113 #define IEEE80211_CTL_EXT_POLL          0x2000
 114 #define IEEE80211_CTL_EXT_SPR           0x3000
 115 #define IEEE80211_CTL_EXT_GRANT 0x4000
 116 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 117 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 118 #define IEEE80211_CTL_EXT_SSW           0x8000
 119 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 120 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 121
 122
 123 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 124 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 125 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 126
 127 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 128 {
 129         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 130 }
 131
 132 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 133 {
 134         return (sn1 + sn2) & IEEE80211_SN_MASK;
 135 }
 136
 137 static inline u16 ieee80211_sn_inc(u16 sn)
 138 {
 139         return ieee80211_sn_add(sn, 1);
 140 }
 141
 142 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 143 {
 144         return (sn1 - sn2) & IEEE80211_SN_MASK;
 145 }
 146
 147 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 148 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 149
 150 /* miscellaneous IEEE 802.11 constants */
 151 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 152 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 153 #define IEEE80211_MAX_AID               2007
 154 #define IEEE80211_MAX_TIM_LEN           251
 155 #define IEEE80211_MAX_MESH_PEERINGS     63
 156 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 157    6.2.1.1.2.
 158
 159    802.11e clarifies the figure in section 7.1.2. The frame body is
 160    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 161 #define IEEE80211_MAX_DATA_LEN          2304
 162 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 163  * to 7920 bytes, see 8.2.3 General frame format
 164  */
 165 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 166 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 167 #define IEEE80211_MAX_FRAME_LEN         2352
 168
 169 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
 170 #define IEEE80211_MAX_MPDU_LEN_HT_BA            4095
 171
 172 /* Maximal size of an A-MSDU */
 173 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 174 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 175
 176 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 177 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 178 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 179
 180 #define IEEE80211_MAX_SSID_LEN          32
 181
 182 #define IEEE80211_MAX_MESH_ID_LEN       32
 183
 184 #define IEEE80211_FIRST_TSPEC_TSID      8
 185 #define IEEE80211_NUM_TIDS              16
 186
 187 /* number of user priorities 802.11 uses */
 188 #define IEEE80211_NUM_UPS               8
 189 /* number of ACs */
 190 #define IEEE80211_NUM_ACS               4
 191
 192 #define IEEE80211_QOS_CTL_LEN           2
 193 /* 1d tag mask */
 194 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 195 /* TID mask */
 196 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 197 /* EOSP */
 198 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 199 /* ACK policy */
 200 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 201 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 202 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 203 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 204 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 205 /* A-MSDU 802.11n */
 206 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 207 /* Mesh Control 802.11s */
 208 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 209
 210 /* Mesh Power Save Level */
 211 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 212 /* Mesh Receiver Service Period Initiated */
 213 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 214
 215 /* U-APSD queue for WMM IEs sent by AP */
 216 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 217 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 218
 219 /* U-APSD queues for WMM IEs sent by STA */
 220 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 221 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 222 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 223 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 224 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 225
 226 /* U-APSD max SP length for WMM IEs sent by STA */
 227 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 228 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 229 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 230 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 231 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 232 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 233
 234 #define IEEE80211_HT_CTL_LEN            4
 235
 236 struct ieee80211_hdr {
 237         __le16 frame_control;
 238         __le16 duration_id;
 239         u8 addr1[ETH_ALEN];
 240         u8 addr2[ETH_ALEN];
 241         u8 addr3[ETH_ALEN];
 242         __le16 seq_ctrl;
 243         u8 addr4[ETH_ALEN];
 244 } __packed __aligned(2);
 245
 246 struct ieee80211_hdr_3addr {
 247         __le16 frame_control;
 248         __le16 duration_id;
 249         u8 addr1[ETH_ALEN];
 250         u8 addr2[ETH_ALEN];
 251         u8 addr3[ETH_ALEN];
 252         __le16 seq_ctrl;
 253 } __packed __aligned(2);
 254
 255 struct ieee80211_qos_hdr {
 256         __le16 frame_control;
 257         __le16 duration_id;
 258         u8 addr1[ETH_ALEN];
 259         u8 addr2[ETH_ALEN];
 260         u8 addr3[ETH_ALEN];
 261         __le16 seq_ctrl;
 262         __le16 qos_ctrl;
 263 } __packed __aligned(2);
 264
 265 /**
 266  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 267  * @fc: frame control bytes in little-endian byteorder
 268  */
 269 static inline bool ieee80211_has_tods(__le16 fc)
 270 {
 271         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 272 }
 273
 274 /**
 275  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 276  * @fc: frame control bytes in little-endian byteorder
 277  */
 278 static inline bool ieee80211_has_fromds(__le16 fc)
 279 {
 280         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 281 }
 282
 283 /**
 284  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 285  * @fc: frame control bytes in little-endian byteorder
 286  */
 287 static inline bool ieee80211_has_a4(__le16 fc)
 288 {
 289         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 290         return (fc & tmp) == tmp;
 291 }
 292
 293 /**
 294  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 295  * @fc: frame control bytes in little-endian byteorder
 296  */
 297 static inline bool ieee80211_has_morefrags(__le16 fc)
 298 {
 299         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 300 }
 301
 302 /**
 303  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 304  * @fc: frame control bytes in little-endian byteorder
 305  */
 306 static inline bool ieee80211_has_retry(__le16 fc)
 307 {
 308         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 309 }
 310
 311 /**
 312  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 313  * @fc: frame control bytes in little-endian byteorder
 314  */
 315 static inline bool ieee80211_has_pm(__le16 fc)
 316 {
 317         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 318 }
 319
 320 /**
 321  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 322  * @fc: frame control bytes in little-endian byteorder
 323  */
 324 static inline bool ieee80211_has_moredata(__le16 fc)
 325 {
 326         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 327 }
 328
 329 /**
 330  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 331  * @fc: frame control bytes in little-endian byteorder
 332  */
 333 static inline bool ieee80211_has_protected(__le16 fc)
 334 {
 335         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 336 }
 337
 338 /**
 339  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 340  * @fc: frame control bytes in little-endian byteorder
 341  */
 342 static inline bool ieee80211_has_order(__le16 fc)
 343 {
 344         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 345 }
 346
 347 /**
 348  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 349  * @fc: frame control bytes in little-endian byteorder
 350  */
 351 static inline bool ieee80211_is_mgmt(__le16 fc)
 352 {
 353         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 354                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 355 }
 356
 357 /**
 358  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 359  * @fc: frame control bytes in little-endian byteorder
 360  */
 361 static inline bool ieee80211_is_ctl(__le16 fc)
 362 {
 363         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 364                cpu_to_le16(IEEE80211_FTYPE_CTL);
 365 }
 366
 367 /**
 368  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 369  * @fc: frame control bytes in little-endian byteorder
 370  */
 371 static inline bool ieee80211_is_data(__le16 fc)
 372 {
 373         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 374                cpu_to_le16(IEEE80211_FTYPE_DATA);
 375 }
 376
 377 /**
 378  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 379  * @fc: frame control bytes in little-endian byteorder
 380  */
 381 static inline bool ieee80211_is_data_qos(__le16 fc)
 382 {
 383         /*
 384          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 385          * to check the one bit
 386          */
 387         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 388                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 389 }
 390
 391 /**
 392  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 393  * @fc: frame control bytes in little-endian byteorder
 394  */
 395 static inline bool ieee80211_is_data_present(__le16 fc)
 396 {
 397         /*
 398          * mask with 0x40 and test that that bit is clear to only return true
 399          * for the data-containing substypes.
 400          */
 401         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 402                cpu_to_le16(IEEE80211_FTYPE_DATA);
 403 }
 404
 405 /**
 406  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 407  * @fc: frame control bytes in little-endian byteorder
 408  */
 409 static inline bool ieee80211_is_assoc_req(__le16 fc)
 410 {
 411         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 412                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 413 }
 414
 415 /**
 416  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 417  * @fc: frame control bytes in little-endian byteorder
 418  */
 419 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 420 {
 421         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 422                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 423 }
 424
 425 /**
 426  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 427  * @fc: frame control bytes in little-endian byteorder
 428  */
 429 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 430 {
 431         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 432                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 433 }
 434
 435 /**
 436  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 437  * @fc: frame control bytes in little-endian byteorder
 438  */
 439 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 440 {
 441         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 442                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 443 }
 444
 445 /**
 446  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 447  * @fc: frame control bytes in little-endian byteorder
 448  */
 449 static inline bool ieee80211_is_probe_req(__le16 fc)
 450 {
 451         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 452                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 453 }
 454
 455 /**
 456  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 457  * @fc: frame control bytes in little-endian byteorder
 458  */
 459 static inline bool ieee80211_is_probe_resp(__le16 fc)
 460 {
 461         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 462                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 463 }
 464
 465 /**
 466  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 467  * @fc: frame control bytes in little-endian byteorder
 468  */
 469 static inline bool ieee80211_is_beacon(__le16 fc)
 470 {
 471         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 472                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 473 }
 474
 475 /**
 476  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 477  * @fc: frame control bytes in little-endian byteorder
 478  */
 479 static inline bool ieee80211_is_atim(__le16 fc)
 480 {
 481         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 482                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 483 }
 484
 485 /**
 486  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 487  * @fc: frame control bytes in little-endian byteorder
 488  */
 489 static inline bool ieee80211_is_disassoc(__le16 fc)
 490 {
 491         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 492                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 493 }
 494
 495 /**
 496  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 497  * @fc: frame control bytes in little-endian byteorder
 498  */
 499 static inline bool ieee80211_is_auth(__le16 fc)
 500 {
 501         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 502                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 503 }
 504
 505 /**
 506  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 507  * @fc: frame control bytes in little-endian byteorder
 508  */
 509 static inline bool ieee80211_is_deauth(__le16 fc)
 510 {
 511         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 512                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 513 }
 514
 515 /**
 516  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 517  * @fc: frame control bytes in little-endian byteorder
 518  */
 519 static inline bool ieee80211_is_action(__le16 fc)
 520 {
 521         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 522                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 523 }
 524
 525 /**
 526  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 527  * @fc: frame control bytes in little-endian byteorder
 528  */
 529 static inline bool ieee80211_is_back_req(__le16 fc)
 530 {
 531         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 532                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 533 }
 534
 535 /**
 536  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 537  * @fc: frame control bytes in little-endian byteorder
 538  */
 539 static inline bool ieee80211_is_back(__le16 fc)
 540 {
 541         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 542                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 543 }
 544
 545 /**
 546  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 547  * @fc: frame control bytes in little-endian byteorder
 548  */
 549 static inline bool ieee80211_is_pspoll(__le16 fc)
 550 {
 551         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 552                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 553 }
 554
 555 /**
 556  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 557  * @fc: frame control bytes in little-endian byteorder
 558  */
 559 static inline bool ieee80211_is_rts(__le16 fc)
 560 {
 561         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 562                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 563 }
 564
 565 /**
 566  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 567  * @fc: frame control bytes in little-endian byteorder
 568  */
 569 static inline bool ieee80211_is_cts(__le16 fc)
 570 {
 571         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 572                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 573 }
 574
 575 /**
 576  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 577  * @fc: frame control bytes in little-endian byteorder
 578  */
 579 static inline bool ieee80211_is_ack(__le16 fc)
 580 {
 581         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 582                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 583 }
 584
 585 /**
 586  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 587  * @fc: frame control bytes in little-endian byteorder
 588  */
 589 static inline bool ieee80211_is_cfend(__le16 fc)
 590 {
 591         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 592                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 593 }
 594
 595 /**
 596  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 597  * @fc: frame control bytes in little-endian byteorder
 598  */
 599 static inline bool ieee80211_is_cfendack(__le16 fc)
 600 {
 601         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 602                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 603 }
 604
 605 /**
 606  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 607  * @fc: frame control bytes in little-endian byteorder
 608  */
 609 static inline bool ieee80211_is_nullfunc(__le16 fc)
 610 {
 611         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 612                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 613 }
 614
 615 /**
 616  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 617  * @fc: frame control bytes in little-endian byteorder
 618  */
 619 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 620 {
 621         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 622                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 623 }
 624
 625 /**
 626  * ieee80211_is_any_nullfunc - check if frame is regular or QoS nullfunc frame
 627  * @fc: frame control bytes in little-endian byteorder
 628  */
 629 static inline bool ieee80211_is_any_nullfunc(__le16 fc)
 630 {
 631         return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
 632 }
 633
 634 /**
 635  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
 636  * @fc: frame control field in little-endian byteorder
 637  */
 638 static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
 639 {
 640         /* IEEE 802.11-2012, definition of "bufferable management frame";
 641          * note that this ignores the IBSS special case. */
 642         return ieee80211_is_mgmt(fc) &&
 643                (ieee80211_is_action(fc) ||
 644                 ieee80211_is_disassoc(fc) ||
 645                 ieee80211_is_deauth(fc));
 646 }
 647
 648 /**
 649  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 650  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 651  */
 652 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 653 {
 654         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 655 }
 656
 657 /**
 658  * ieee80211_is_frag - check if a frame is a fragment
 659  * @hdr: 802.11 header of the frame
 660  */
 661 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 662 {
 663         return ieee80211_has_morefrags(hdr->frame_control) ||
 664                hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 665 }
 666
 667 struct ieee80211s_hdr {
 668         u8 flags;
 669         u8 ttl;
 670         __le32 seqnum;
 671         u8 eaddr1[ETH_ALEN];
 672         u8 eaddr2[ETH_ALEN];
 673 } __packed __aligned(2);
 674
 675 /* Mesh flags */
 676 #define MESH_FLAGS_AE_A4        0x1
 677 #define MESH_FLAGS_AE_A5_A6     0x2
 678 #define MESH_FLAGS_AE           0x3
 679 #define MESH_FLAGS_PS_DEEP      0x4
 680
 681 /**
 682  * enum ieee80211_preq_flags - mesh PREQ element flags
 683  *
 684  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 685  */
 686 enum ieee80211_preq_flags {
 687         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 688 };
 689
 690 /**
 691  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 692  *
 693  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 694  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 695  */
 696 enum ieee80211_preq_target_flags {
 697         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 698         IEEE80211_PREQ_USN_FLAG = 1<<2,
 699 };
 700
 701 /**
 702  * struct ieee80211_quiet_ie
 703  *
 704  * This structure refers to "Quiet information element"
 705  */
 706 struct ieee80211_quiet_ie {
 707         u8 count;
 708         u8 period;
 709         __le16 duration;
 710         __le16 offset;
 711 } __packed;
 712
 713 /**
 714  * struct ieee80211_msrment_ie
 715  *
 716  * This structure refers to "Measurement Request/Report information element"
 717  */
 718 struct ieee80211_msrment_ie {
 719         u8 token;
 720         u8 mode;
 721         u8 type;
 722         u8 request[0];
 723 } __packed;
 724
 725 /**
 726  * struct ieee80211_channel_sw_ie
 727  *
 728  * This structure refers to "Channel Switch Announcement information element"
 729  */
 730 struct ieee80211_channel_sw_ie {
 731         u8 mode;
 732         u8 new_ch_num;
 733         u8 count;
 734 } __packed;
 735
 736 /**
 737  * struct ieee80211_ext_chansw_ie
 738  *
 739  * This structure represents the "Extended Channel Switch Announcement element"
 740  */
 741 struct ieee80211_ext_chansw_ie {
 742         u8 mode;
 743         u8 new_operating_class;
 744         u8 new_ch_num;
 745         u8 count;
 746 } __packed;
 747
 748 /**
 749  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 750  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 751  *      values here
 752  * This structure represents the "Secondary Channel Offset element"
 753  */
 754 struct ieee80211_sec_chan_offs_ie {
 755         u8 sec_chan_offs;
 756 } __packed;
 757
 758 /**
 759  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 760  *
 761  * This structure represents the "Mesh Channel Switch Paramters element"
 762  */
 763 struct ieee80211_mesh_chansw_params_ie {
 764         u8 mesh_ttl;
 765         u8 mesh_flags;
 766         __le16 mesh_reason;
 767         __le16 mesh_pre_value;
 768 } __packed;
 769
 770 /**
 771  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 772  */
 773 struct ieee80211_wide_bw_chansw_ie {
 774         u8 new_channel_width;
 775         u8 new_center_freq_seg0, new_center_freq_seg1;
 776 } __packed;
 777
 778 /**
 779  * struct ieee80211_tim
 780  *
 781  * This structure refers to "Traffic Indication Map information element"
 782  */
 783 struct ieee80211_tim_ie {
 784         u8 dtim_count;
 785         u8 dtim_period;
 786         u8 bitmap_ctrl;
 787         /* variable size: 1 - 251 bytes */
 788         u8 virtual_map[1];
 789 } __packed;
 790
 791 /**
 792  * struct ieee80211_meshconf_ie
 793  *
 794  * This structure refers to "Mesh Configuration information element"
 795  */
 796 struct ieee80211_meshconf_ie {
 797         u8 meshconf_psel;
 798         u8 meshconf_pmetric;
 799         u8 meshconf_congest;
 800         u8 meshconf_synch;
 801         u8 meshconf_auth;
 802         u8 meshconf_form;
 803         u8 meshconf_cap;
 804 } __packed;
 805
 806 /**
 807  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 808  *
 809  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 810  *      additional mesh peerings with other mesh STAs
 811  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 812  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 813  *      is ongoing
 814  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 815  *      neighbors in deep sleep mode
 816  */
 817 enum mesh_config_capab_flags {
 818         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
 819         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
 820         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
 821         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
 822 };
 823
 824 /**
 825  * mesh channel switch parameters element's flag indicator
 826  *
 827  */
 828 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
 829 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
 830 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
 831
 832 /**
 833  * struct ieee80211_rann_ie
 834  *
 835  * This structure refers to "Root Announcement information element"
 836  */
 837 struct ieee80211_rann_ie {
 838         u8 rann_flags;
 839         u8 rann_hopcount;
 840         u8 rann_ttl;
 841         u8 rann_addr[ETH_ALEN];
 842         __le32 rann_seq;
 843         __le32 rann_interval;
 844         __le32 rann_metric;
 845 } __packed;
 846
 847 enum ieee80211_rann_flags {
 848         RANN_FLAG_IS_GATE = 1 << 0,
 849 };
 850
 851 enum ieee80211_ht_chanwidth_values {
 852         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
 853         IEEE80211_HT_CHANWIDTH_ANY = 1,
 854 };
 855
 856 /**
 857  * enum ieee80211_opmode_bits - VHT operating mode field bits
 858  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
 859  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
 860  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
 861  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
 862  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
 863  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
 864  *      (the NSS value is the value of this field + 1)
 865  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
 866  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
 867  *      using a beamforming steering matrix
 868  */
 869 enum ieee80211_vht_opmode_bits {
 870         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 3,
 871         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
 872         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
 873         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
 874         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
 875         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
 876         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
 877         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
 878 };
 879
 880 #define WLAN_SA_QUERY_TR_ID_LEN 2
 881 #define WLAN_MEMBERSHIP_LEN 8
 882 #define WLAN_USER_POSITION_LEN 16
 883
 884 /**
 885  * struct ieee80211_tpc_report_ie
 886  *
 887  * This structure refers to "TPC Report element"
 888  */
 889 struct ieee80211_tpc_report_ie {
 890         u8 tx_power;
 891         u8 link_margin;
 892 } __packed;
 893
 894 struct ieee80211_mgmt {
 895         __le16 frame_control;
 896         __le16 duration;
 897         u8 da[ETH_ALEN];
 898         u8 sa[ETH_ALEN];
 899         u8 bssid[ETH_ALEN];
 900         __le16 seq_ctrl;
 901         union {
 902                 struct {
 903                         __le16 auth_alg;
 904                         __le16 auth_transaction;
 905                         __le16 status_code;
 906                         /* possibly followed by Challenge text */
 907                         u8 variable[0];
 908                 } __packed auth;
 909                 struct {
 910                         __le16 reason_code;
 911                 } __packed deauth;
 912                 struct {
 913                         __le16 capab_info;
 914                         __le16 listen_interval;
 915                         /* followed by SSID and Supported rates */
 916                         u8 variable[0];
 917                 } __packed assoc_req;
 918                 struct {
 919                         __le16 capab_info;
 920                         __le16 status_code;
 921                         __le16 aid;
 922                         /* followed by Supported rates */
 923                         u8 variable[0];
 924                 } __packed assoc_resp, reassoc_resp;
 925                 struct {
 926                         __le16 capab_info;
 927                         __le16 listen_interval;
 928                         u8 current_ap[ETH_ALEN];
 929                         /* followed by SSID and Supported rates */
 930                         u8 variable[0];
 931                 } __packed reassoc_req;
 932                 struct {
 933                         __le16 reason_code;
 934                 } __packed disassoc;
 935                 struct {
 936                         __le64 timestamp;
 937                         __le16 beacon_int;
 938                         __le16 capab_info;
 939                         /* followed by some of SSID, Supported rates,
 940                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
 941                         u8 variable[0];
 942                 } __packed beacon;
 943                 struct {
 944                         /* only variable items: SSID, Supported rates */
 945                         u8 variable[0];
 946                 } __packed probe_req;
 947                 struct {
 948                         __le64 timestamp;
 949                         __le16 beacon_int;
 950                         __le16 capab_info;
 951                         /* followed by some of SSID, Supported rates,
 952                          * FH Params, DS Params, CF Params, IBSS Params */
 953                         u8 variable[0];
 954                 } __packed probe_resp;
 955                 struct {
 956                         u8 category;
 957                         union {
 958                                 struct {
 959                                         u8 action_code;
 960                                         u8 dialog_token;
 961                                         u8 status_code;
 962                                         u8 variable[0];
 963                                 } __packed wme_action;
 964                                 struct{
 965                                         u8 action_code;
 966                                         u8 variable[0];
 967                                 } __packed chan_switch;
 968                                 struct{
 969                                         u8 action_code;
 970                                         struct ieee80211_ext_chansw_ie data;
 971                                         u8 variable[0];
 972                                 } __packed ext_chan_switch;
 973                                 struct{
 974                                         u8 action_code;
 975                                         u8 dialog_token;
 976                                         u8 element_id;
 977                                         u8 length;
 978                                         struct ieee80211_msrment_ie msr_elem;
 979                                 } __packed measurement;
 980                                 struct{
 981                                         u8 action_code;
 982                                         u8 dialog_token;
 983                                         __le16 capab;
 984                                         __le16 timeout;
 985                                         __le16 start_seq_num;
 986                                 } __packed addba_req;
 987                                 struct{
 988                                         u8 action_code;
 989                                         u8 dialog_token;
 990                                         __le16 status;
 991                                         __le16 capab;
 992                                         __le16 timeout;
 993                                 } __packed addba_resp;
 994                                 struct{
 995                                         u8 action_code;
 996                                         __le16 params;
 997                                         __le16 reason_code;
 998                                 } __packed delba;
 999                                 struct {
1000                                         u8 action_code;
1001                                         u8 variable[0];
1002                                 } __packed self_prot;
1003                                 struct{
1004                                         u8 action_code;
1005                                         u8 variable[0];
1006                                 } __packed mesh_action;
1007                                 struct {
1008                                         u8 action;
1009                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1010                                 } __packed sa_query;
1011                                 struct {
1012                                         u8 action;
1013                                         u8 smps_control;
1014                                 } __packed ht_smps;
1015                                 struct {
1016                                         u8 action_code;
1017                                         u8 chanwidth;
1018                                 } __packed ht_notify_cw;
1019                                 struct {
1020                                         u8 action_code;
1021                                         u8 dialog_token;
1022                                         __le16 capability;
1023                                         u8 variable[0];
1024                                 } __packed tdls_discover_resp;
1025                                 struct {
1026                                         u8 action_code;
1027                                         u8 operating_mode;
1028                                 } __packed vht_opmode_notif;
1029                                 struct {
1030                                         u8 action_code;
1031                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1032                                         u8 position[WLAN_USER_POSITION_LEN];
1033                                 } __packed vht_group_notif;
1034                                 struct {
1035                                         u8 action_code;
1036                                         u8 dialog_token;
1037                                         u8 tpc_elem_id;
1038                                         u8 tpc_elem_length;
1039                                         struct ieee80211_tpc_report_ie tpc;
1040                                 } __packed tpc_report;
1041                                 struct {
1042                                         u8 action_code;
1043                                         u8 dialog_token;
1044                                         u8 follow_up;
1045                                         u8 tod[6];
1046                                         u8 toa[6];
1047                                         __le16 tod_error;
1048                                         __le16 toa_error;
1049                                         u8 variable[0];
1050                                 } __packed ftm;
1051                         } u;
1052                 } __packed action;
1053         } u;
1054 } __packed __aligned(2);
1055
1056 /* Supported rates membership selectors */
1057 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1058 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1059
1060 /* mgmt header + 1 byte category code */
1061 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1062
1063
1064 /* Management MIC information element (IEEE 802.11w) */
1065 struct ieee80211_mmie {
1066         u8 element_id;
1067         u8 length;
1068         __le16 key_id;
1069         u8 sequence_number[6];
1070         u8 mic[8];
1071 } __packed;
1072
1073 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1074 struct ieee80211_mmie_16 {
1075         u8 element_id;
1076         u8 length;
1077         __le16 key_id;
1078         u8 sequence_number[6];
1079         u8 mic[16];
1080 } __packed;
1081
1082 struct ieee80211_vendor_ie {
1083         u8 element_id;
1084         u8 len;
1085         u8 oui[3];
1086         u8 oui_type;
1087 } __packed;
1088
1089 struct ieee80211_wmm_ac_param {
1090         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1091         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1092         __le16 txop_limit;
1093 } __packed;
1094
1095 struct ieee80211_wmm_param_ie {
1096         u8 element_id; /* Element ID: 221 (0xdd); */
1097         u8 len; /* Length: 24 */
1098         /* required fields for WMM version 1 */
1099         u8 oui[3]; /* 00:50:f2 */
1100         u8 oui_type; /* 2 */
1101         u8 oui_subtype; /* 1 */
1102         u8 version; /* 1 for WMM version 1.0 */
1103         u8 qos_info; /* AP/STA specific QoS info */
1104         u8 reserved; /* 0 */
1105         /* AC_BE, AC_BK, AC_VI, AC_VO */
1106         struct ieee80211_wmm_ac_param ac[4];
1107 } __packed;
1108
1109 /* Control frames */
1110 struct ieee80211_rts {
1111         __le16 frame_control;
1112         __le16 duration;
1113         u8 ra[ETH_ALEN];
1114         u8 ta[ETH_ALEN];
1115 } __packed __aligned(2);
1116
1117 struct ieee80211_cts {
1118         __le16 frame_control;
1119         __le16 duration;
1120         u8 ra[ETH_ALEN];
1121 } __packed __aligned(2);
1122
1123 struct ieee80211_pspoll {
1124         __le16 frame_control;
1125         __le16 aid;
1126         u8 bssid[ETH_ALEN];
1127         u8 ta[ETH_ALEN];
1128 } __packed __aligned(2);
1129
1130 /* TDLS */
1131
1132 /* Channel switch timing */
1133 struct ieee80211_ch_switch_timing {
1134         __le16 switch_time;
1135         __le16 switch_timeout;
1136 } __packed;
1137
1138 /* Link-id information element */
1139 struct ieee80211_tdls_lnkie {
1140         u8 ie_type; /* Link Identifier IE */
1141         u8 ie_len;
1142         u8 bssid[ETH_ALEN];
1143         u8 init_sta[ETH_ALEN];
1144         u8 resp_sta[ETH_ALEN];
1145 } __packed;
1146
1147 struct ieee80211_tdls_data {
1148         u8 da[ETH_ALEN];
1149         u8 sa[ETH_ALEN];
1150         __be16 ether_type;
1151         u8 payload_type;
1152         u8 category;
1153         u8 action_code;
1154         union {
1155                 struct {
1156                         u8 dialog_token;
1157                         __le16 capability;
1158                         u8 variable[0];
1159                 } __packed setup_req;
1160                 struct {
1161                         __le16 status_code;
1162                         u8 dialog_token;
1163                         __le16 capability;
1164                         u8 variable[0];
1165                 } __packed setup_resp;
1166                 struct {
1167                         __le16 status_code;
1168                         u8 dialog_token;
1169                         u8 variable[0];
1170                 } __packed setup_cfm;
1171                 struct {
1172                         __le16 reason_code;
1173                         u8 variable[0];
1174                 } __packed teardown;
1175                 struct {
1176                         u8 dialog_token;
1177                         u8 variable[0];
1178                 } __packed discover_req;
1179                 struct {
1180                         u8 target_channel;
1181                         u8 oper_class;
1182                         u8 variable[0];
1183                 } __packed chan_switch_req;
1184                 struct {
1185                         __le16 status_code;
1186                         u8 variable[0];
1187                 } __packed chan_switch_resp;
1188         } u;
1189 } __packed;
1190
1191 /*
1192  * Peer-to-Peer IE attribute related definitions.
1193  */
1194 /**
1195  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1196  */
1197 enum ieee80211_p2p_attr_id {
1198         IEEE80211_P2P_ATTR_STATUS = 0,
1199         IEEE80211_P2P_ATTR_MINOR_REASON,
1200         IEEE80211_P2P_ATTR_CAPABILITY,
1201         IEEE80211_P2P_ATTR_DEVICE_ID,
1202         IEEE80211_P2P_ATTR_GO_INTENT,
1203         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1204         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1205         IEEE80211_P2P_ATTR_GROUP_BSSID,
1206         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1207         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1208         IEEE80211_P2P_ATTR_MANAGABILITY,
1209         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1210         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1211         IEEE80211_P2P_ATTR_DEVICE_INFO,
1212         IEEE80211_P2P_ATTR_GROUP_INFO,
1213         IEEE80211_P2P_ATTR_GROUP_ID,
1214         IEEE80211_P2P_ATTR_INTERFACE,
1215         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1216         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1217         /* 19 - 220: Reserved */
1218         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1219
1220         IEEE80211_P2P_ATTR_MAX
1221 };
1222
1223 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1224 /* Typical max value used here */
1225 #define IEEE80211_P2P_NOA_DESC_MAX      4
1226
1227 struct ieee80211_p2p_noa_desc {
1228         u8 count;
1229         __le32 duration;
1230         __le32 interval;
1231         __le32 start_time;
1232 } __packed;
1233
1234 struct ieee80211_p2p_noa_attr {
1235         u8 index;
1236         u8 oppps_ctwindow;
1237         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1238 } __packed;
1239
1240 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1241 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1242
1243 /**
1244  * struct ieee80211_bar - HT Block Ack Request
1245  *
1246  * This structure refers to "HT BlockAckReq" as
1247  * described in 802.11n draft section 7.2.1.7.1
1248  */
1249 struct ieee80211_bar {
1250         __le16 frame_control;
1251         __le16 duration;
1252         __u8 ra[ETH_ALEN];
1253         __u8 ta[ETH_ALEN];
1254         __le16 control;
1255         __le16 start_seq_num;
1256 } __packed;
1257
1258 /* 802.11 BAR control masks */
1259 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1260 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1261 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1262 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1263 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1264
1265 #define IEEE80211_HT_MCS_MASK_LEN               10
1266
1267 /**
1268  * struct ieee80211_mcs_info - MCS information
1269  * @rx_mask: RX mask
1270  * @rx_highest: highest supported RX rate. If set represents
1271  *      the highest supported RX data rate in units of 1 Mbps.
1272  *      If this field is 0 this value should not be used to
1273  *      consider the highest RX data rate supported.
1274  * @tx_params: TX parameters
1275  */
1276 struct ieee80211_mcs_info {
1277         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1278         __le16 rx_highest;
1279         u8 tx_params;
1280         u8 reserved[3];
1281 } __packed;
1282
1283 /* 802.11n HT capability MSC set */
1284 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1285 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1286 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1287 /* value 0 == 1 stream etc */
1288 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1289 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1290 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1291 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1292
1293 /*
1294  * 802.11n D5.0 20.3.5 / 20.6 says:
1295  * - indices 0 to 7 and 32 are single spatial stream
1296  * - 8 to 31 are multiple spatial streams using equal modulation
1297  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1298  * - remainder are multiple spatial streams using unequal modulation
1299  */
1300 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1301 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1302         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1303
1304 /**
1305  * struct ieee80211_ht_cap - HT capabilities
1306  *
1307  * This structure is the "HT capabilities element" as
1308  * described in 802.11n D5.0 7.3.2.57
1309  */
1310 struct ieee80211_ht_cap {
1311         __le16 cap_info;
1312         u8 ampdu_params_info;
1313
1314         /* 16 bytes MCS information */
1315         struct ieee80211_mcs_info mcs;
1316
1317         __le16 extended_ht_cap_info;
1318         __le32 tx_BF_cap_info;
1319         u8 antenna_selection_info;
1320 } __packed;
1321
1322 /* 802.11n HT capabilities masks (for cap_info) */
1323 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1324 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1325 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1326 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1327 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1328 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1329 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1330 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1331 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1332 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1333 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1334 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1335 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1336 #define IEEE80211_HT_CAP_RESERVED               0x2000
1337 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1338 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1339
1340 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1341 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1342 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1343 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1344 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1345 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1346 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1347 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1348
1349 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1350 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1351 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1352 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1353
1354 /*
1355  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1356  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1357  */
1358 enum ieee80211_max_ampdu_length_exp {
1359         IEEE80211_HT_MAX_AMPDU_8K = 0,
1360         IEEE80211_HT_MAX_AMPDU_16K = 1,
1361         IEEE80211_HT_MAX_AMPDU_32K = 2,
1362         IEEE80211_HT_MAX_AMPDU_64K = 3
1363 };
1364
1365 /*
1366  * Maximum length of AMPDU that the STA can receive in VHT.
1367  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1368  */
1369 enum ieee80211_vht_max_ampdu_length_exp {
1370         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1371         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1372         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1373         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1374         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1375         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1376         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1377         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1378 };
1379
1380 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1381
1382 /* Minimum MPDU start spacing */
1383 enum ieee80211_min_mpdu_spacing {
1384         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1385         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1386         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1387         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1388         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1389         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1390         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1391         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1392 };
1393
1394 /**
1395  * struct ieee80211_ht_operation - HT operation IE
1396  *
1397  * This structure is the "HT operation element" as
1398  * described in 802.11n-2009 7.3.2.57
1399  */
1400 struct ieee80211_ht_operation {
1401         u8 primary_chan;
1402         u8 ht_param;
1403         __le16 operation_mode;
1404         __le16 stbc_param;
1405         u8 basic_set[16];
1406 } __packed;
1407
1408 /* for ht_param */
1409 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1410 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1411 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1412 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1413 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1414 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1415
1416 /* for operation_mode */
1417 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1418 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1419 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1420 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1421 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1422 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1423 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1424 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT                5
1425 #define IEEE80211_HT_OP_MODE_CCFS2_MASK                 0x1fe0
1426
1427 /* for stbc_param */
1428 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1429 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1430 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1431 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1432 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1433 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1434
1435
1436 /* block-ack parameters */
1437 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1438 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1439 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1440 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1441 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1442 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1443
1444 /*
1445  * A-MPDU buffer sizes
1446  * According to HT size varies from 8 to 64 frames
1447  * HE adds the ability to have up to 256 frames.
1448  */
1449 #define IEEE80211_MIN_AMPDU_BUF         0x8
1450 #define IEEE80211_MAX_AMPDU_BUF_HT      0x40
1451 #define IEEE80211_MAX_AMPDU_BUF         0x100
1452
1453
1454 /* Spatial Multiplexing Power Save Modes (for capability) */
1455 #define WLAN_HT_CAP_SM_PS_STATIC        0
1456 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1457 #define WLAN_HT_CAP_SM_PS_INVALID       2
1458 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1459
1460 /* for SM power control field lower two bits */
1461 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1462 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1463 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1464
1465 /**
1466  * struct ieee80211_vht_mcs_info - VHT MCS information
1467  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1468  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1469  *      STA can receive. Rate expressed in units of 1 Mbps.
1470  *      If this field is 0 this value should not be used to
1471  *      consider the highest RX data rate supported.
1472  *      The top 3 bits of this field are reserved.
1473  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1474  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1475  *      STA can transmit. Rate expressed in units of 1 Mbps.
1476  *      If this field is 0 this value should not be used to
1477  *      consider the highest TX data rate supported.
1478  *      The top 3 bits of this field are reserved.
1479  */
1480 struct ieee80211_vht_mcs_info {
1481         __le16 rx_mcs_map;
1482         __le16 rx_highest;
1483         __le16 tx_mcs_map;
1484         __le16 tx_highest;
1485 } __packed;
1486
1487 /**
1488  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1489  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1490  *      number of streams
1491  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1492  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1493  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1494  *
1495  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1496  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1497  * both split into 8 subfields by number of streams. These values indicate
1498  * which MCSes are supported for the number of streams the value appears
1499  * for.
1500  */
1501 enum ieee80211_vht_mcs_support {
1502         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1503         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1504         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1505         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1506 };
1507
1508 /**
1509  * struct ieee80211_vht_cap - VHT capabilities
1510  *
1511  * This structure is the "VHT capabilities element" as
1512  * described in 802.11ac D3.0 8.4.2.160
1513  * @vht_cap_info: VHT capability info
1514  * @supp_mcs: VHT MCS supported rates
1515  */
1516 struct ieee80211_vht_cap {
1517         __le32 vht_cap_info;
1518         struct ieee80211_vht_mcs_info supp_mcs;
1519 } __packed;
1520
1521 /**
1522  * enum ieee80211_vht_chanwidth - VHT channel width
1523  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1524  *      determine the channel width (20 or 40 MHz)
1525  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1526  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1527  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1528  */
1529 enum ieee80211_vht_chanwidth {
1530         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1531         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1532         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1533         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1534 };
1535
1536 /**
1537  * struct ieee80211_vht_operation - VHT operation IE
1538  *
1539  * This structure is the "VHT operation element" as
1540  * described in 802.11ac D3.0 8.4.2.161
1541  * @chan_width: Operating channel width
1542  * @center_freq_seg0_idx: center freq segment 0 index
1543  * @center_freq_seg1_idx: center freq segment 1 index
1544  * @basic_mcs_set: VHT Basic MCS rate set
1545  */
1546 struct ieee80211_vht_operation {
1547         u8 chan_width;
1548         u8 center_freq_seg0_idx;
1549         u8 center_freq_seg1_idx;
1550         __le16 basic_mcs_set;
1551 } __packed;
1552
1553 /**
1554  * struct ieee80211_he_cap_elem - HE capabilities element
1555  *
1556  * This structure is the "HE capabilities element" fixed fields as
1557  * described in P802.11ax_D2.0 section 9.4.2.237.2 and 9.4.2.237.3
1558  */
1559 struct ieee80211_he_cap_elem {
1560         u8 mac_cap_info[5];
1561         u8 phy_cap_info[9];
1562 } __packed;
1563
1564 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN    5
1565
1566 /**
1567  * enum ieee80211_he_mcs_support - HE MCS support definitions
1568  * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1569  *      number of streams
1570  * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1571  * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
1572  * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
1573  *
1574  * These definitions are used in each 2-bit subfield of the rx_mcs_*
1575  * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
1576  * both split into 8 subfields by number of streams. These values indicate
1577  * which MCSes are supported for the number of streams the value appears
1578  * for.
1579  */
1580 enum ieee80211_he_mcs_support {
1581         IEEE80211_HE_MCS_SUPPORT_0_7    = 0,
1582         IEEE80211_HE_MCS_SUPPORT_0_9    = 1,
1583         IEEE80211_HE_MCS_SUPPORT_0_11   = 2,
1584         IEEE80211_HE_MCS_NOT_SUPPORTED  = 3,
1585 };
1586
1587 /**
1588  * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
1589  *
1590  * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
1591  * described in P802.11ax_D2.0 section 9.4.2.237.4
1592  *
1593  * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1594  *     widths less than 80MHz.
1595  * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1596  *     widths less than 80MHz.
1597  * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
1598  *     width 160MHz.
1599  * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
1600  *     width 160MHz.
1601  * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
1602  *     channel width 80p80MHz.
1603  * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
1604  *     channel width 80p80MHz.
1605  */
1606 struct ieee80211_he_mcs_nss_supp {
1607         __le16 rx_mcs_80;
1608         __le16 tx_mcs_80;
1609         __le16 rx_mcs_160;
1610         __le16 tx_mcs_160;
1611         __le16 rx_mcs_80p80;
1612         __le16 tx_mcs_80p80;
1613 } __packed;
1614
1615 /**
1616  * struct ieee80211_he_operation - HE capabilities element
1617  *
1618  * This structure is the "HE operation element" fields as
1619  * described in P802.11ax_D2.0 section 9.4.2.238
1620  */
1621 struct ieee80211_he_operation {
1622         __le32 he_oper_params;
1623         __le16 he_mcs_nss_set;
1624         /* Optional 0,1,3 or 4 bytes: depends on @he_oper_params */
1625         u8 optional[0];
1626 } __packed;
1627
1628 /**
1629  * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
1630  *
1631  * This structure is the "MU AC Parameter Record" fields as
1632  * described in P802.11ax_D2.0 section 9.4.2.240
1633  */
1634 struct ieee80211_he_mu_edca_param_ac_rec {
1635         u8 aifsn;
1636         u8 ecw_min_max;
1637         u8 mu_edca_timer;
1638 } __packed;
1639
1640 /**
1641  * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
1642  *
1643  * This structure is the "MU EDCA Parameter Set element" fields as
1644  * described in P802.11ax_D2.0 section 9.4.2.240
1645  */
1646 struct ieee80211_mu_edca_param_set {
1647         u8 mu_qos_info;
1648         struct ieee80211_he_mu_edca_param_ac_rec ac_be;
1649         struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
1650         struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
1651         struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
1652 } __packed;
1653
1654 /* 802.11ac VHT Capabilities */
1655 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
1656 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
1657 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
1658 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
1659 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
1660 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
1661 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
1662 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
1663 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
1664 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
1665 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
1666 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
1667 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
1668 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
1669 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
1670 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
1671 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
1672 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
1673 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
1674 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
1675                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
1676 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
1677 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
1678                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
1679 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
1680 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
1681 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
1682 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
1683 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
1684 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
1685                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
1686 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
1687 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
1688 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
1689 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
1690
1691 /* 802.11ax HE MAC capabilities */
1692 #define IEEE80211_HE_MAC_CAP0_HTC_HE                            0x01
1693 #define IEEE80211_HE_MAC_CAP0_TWT_REQ                           0x02
1694 #define IEEE80211_HE_MAC_CAP0_TWT_RES                           0x04
1695 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP             0x00
1696 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1              0x08
1697 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2              0x10
1698 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3              0x18
1699 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK                 0x18
1700 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1               0x00
1701 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2               0x20
1702 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4               0x40
1703 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8               0x60
1704 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16              0x80
1705 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32              0xa0
1706 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64              0xc0
1707 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED       0xe0
1708 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK            0xe0
1709
1710 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED           0x00
1711 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128                 0x01
1712 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256                 0x02
1713 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512                 0x03
1714 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK                0x03
1715 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US                0x00
1716 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US                0x04
1717 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US               0x08
1718 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK               0x0c
1719 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_1               0x00
1720 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_2               0x10
1721 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_3               0x20
1722 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_4               0x30
1723 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_5               0x40
1724 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_6               0x50
1725 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_7               0x60
1726 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_8               0x70
1727 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_QOS_MASK            0x70
1728
1729 /* Link adaptation is split between byte HE_MAC_CAP1 and
1730  * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
1731  * in which case the following values apply:
1732  * 0 = No feedback.
1733  * 1 = reserved.
1734  * 2 = Unsolicited feedback.
1735  * 3 = both
1736  */
1737 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION                   0x80
1738
1739 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION                   0x01
1740 #define IEEE80211_HE_MAC_CAP2_ALL_ACK                           0x02
1741 #define IEEE80211_HE_MAC_CAP2_UL_MU_RESP_SCHED                  0x04
1742 #define IEEE80211_HE_MAC_CAP2_BSR                               0x08
1743 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT                         0x10
1744 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP                   0x20
1745 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING                      0x40
1746 #define IEEE80211_HE_MAC_CAP2_ACK_EN                            0x80
1747
1748 #define IEEE80211_HE_MAC_CAP3_GRP_ADDR_MULTI_STA_BA_DL_MU       0x01
1749 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL                       0x02
1750 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA                          0x04
1751
1752 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
1753  * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
1754  * same field in the HE capabilities.
1755  */
1756 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_USE_VHT       0x00
1757 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_1         0x08
1758 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_VHT_2         0x10
1759 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_RESERVED      0x18
1760 #define IEEE80211_HE_MAC_CAP3_MAX_A_AMPDU_LEN_EXP_MASK          0x18
1761 #define IEEE80211_HE_MAC_CAP3_A_AMSDU_FRAG                      0x20
1762 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED                    0x40
1763 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS         0x80
1764
1765 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG              0x01
1766 #define IEEE80211_HE_MAC_CAP4_QTP                               0x02
1767 #define IEEE80211_HE_MAC_CAP4_BQR                               0x04
1768 #define IEEE80211_HE_MAC_CAP4_SR_RESP                           0x08
1769 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP                        0x10
1770 #define IEEE80211_HE_MAC_CAP4_OPS                               0x20
1771 #define IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU                    0x40
1772
1773 /* 802.11ax HE PHY capabilities */
1774 #define IEEE80211_HE_PHY_CAP0_DUAL_BAND                                 0x01
1775 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G             0x02
1776 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G       0x04
1777 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G            0x08
1778 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G      0x10
1779 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G        0x20
1780 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G        0x40
1781 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK                    0xfe
1782
1783 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ  0x01
1784 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ  0x02
1785 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
1786 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
1787 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK                     0x0f
1788 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A                            0x10
1789 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD                    0x20
1790 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US          0x40
1791 /* Midamble RX Max NSTS is split between byte #2 and byte #3 */
1792 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_MAX_NSTS                      0x80
1793
1794 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_MAX_NSTS                      0x01
1795 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US                      0x02
1796 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ                       0x04
1797 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ                       0x08
1798 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX                                0x10
1799 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX                                0x20
1800
1801 /* Note that the meaning of UL MU below is different between an AP and a non-AP
1802  * sta, where in the AP case it indicates support for Rx and in the non-AP sta
1803  * case it indicates support for Tx.
1804  */
1805 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO                        0x40
1806 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO                     0x80
1807
1808 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM                   0x00
1809 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK                     0x01
1810 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK                     0x02
1811 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM                   0x03
1812 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK                     0x03
1813 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1                          0x00
1814 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2                          0x04
1815 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM                   0x00
1816 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK                     0x08
1817 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK                     0x10
1818 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM                   0x18
1819 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK                     0x18
1820 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1                          0x00
1821 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2                          0x20
1822 #define IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA             0x40
1823 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER                             0x80
1824
1825 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE                             0x01
1826 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER                             0x02
1827
1828 /* Minimal allowed value of Max STS under 80MHz is 3 */
1829 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4          0x0c
1830 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5          0x10
1831 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6          0x14
1832 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7          0x18
1833 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8          0x1c
1834 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK       0x1c
1835
1836 /* Minimal allowed value of Max STS above 80MHz is 3 */
1837 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4          0x60
1838 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5          0x80
1839 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6          0xa0
1840 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7          0xc0
1841 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8          0xe0
1842 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK       0xe0
1843
1844 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1      0x00
1845 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2      0x01
1846 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3      0x02
1847 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4      0x03
1848 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5      0x04
1849 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6      0x05
1850 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7      0x06
1851 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8      0x07
1852 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK   0x07
1853
1854 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1      0x00
1855 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2      0x08
1856 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3      0x10
1857 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4      0x18
1858 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5      0x20
1859 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6      0x28
1860 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7      0x30
1861 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8      0x38
1862 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK   0x38
1863
1864 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK                          0x40
1865 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK                          0x80
1866
1867 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU                       0x01
1868 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU                       0x02
1869 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB                     0x04
1870 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB                     0x08
1871 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB                               0x10
1872 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE                      0x20
1873 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO               0x40
1874 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT                     0x80
1875
1876 #define IEEE80211_HE_PHY_CAP7_SRP_BASED_SR                              0x01
1877 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR                     0x02
1878 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI          0x04
1879 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1                                  0x08
1880 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2                                  0x10
1881 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3                                  0x18
1882 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4                                  0x20
1883 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5                                  0x28
1884 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6                                  0x30
1885 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7                                  0x38
1886 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK                               0x38
1887 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ                       0x40
1888 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ                       0x80
1889
1890 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI          0x01
1891 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G              0x02
1892 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU                   0x04
1893 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU                   0x08
1894 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI               0x10
1895 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_2X_AND_1XLTF                  0x20
1896
1897 /* 802.11ax HE TX/RX MCS NSS Support  */
1898 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS                    (3)
1899 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS                      (6)
1900 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS                      (11)
1901 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK                     0x07c0
1902 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK                     0xf800
1903
1904 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
1905 enum ieee80211_he_highest_mcs_supported_subfield_enc {
1906         HIGHEST_MCS_SUPPORTED_MCS7 = 0,
1907         HIGHEST_MCS_SUPPORTED_MCS8,
1908         HIGHEST_MCS_SUPPORTED_MCS9,
1909         HIGHEST_MCS_SUPPORTED_MCS10,
1910         HIGHEST_MCS_SUPPORTED_MCS11,
1911 };
1912
1913 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
1914 static inline u8
1915 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
1916 {
1917         u8 count = 4;
1918
1919         if (he_cap->phy_cap_info[0] &
1920             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
1921                 count += 4;
1922
1923         if (he_cap->phy_cap_info[0] &
1924             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
1925                 count += 4;
1926
1927         return count;
1928 }
1929
1930 /* 802.11ax HE PPE Thresholds */
1931 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS                    (1)
1932 #define IEEE80211_PPE_THRES_NSS_POS                             (0)
1933 #define IEEE80211_PPE_THRES_NSS_MASK                            (7)
1934 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU   \
1935         (BIT(5) | BIT(6))
1936 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK               0x78
1937 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS                (3)
1938 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE                      (3)
1939
1940 /*
1941  * Calculate 802.11ax HE capabilities IE PPE field size
1942  * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
1943  */
1944 static inline u8
1945 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
1946 {
1947         u8 n;
1948
1949         if ((phy_cap_info[6] &
1950              IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
1951                 return 0;
1952
1953         n = hweight8(ppe_thres_hdr &
1954                      IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
1955         n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
1956                    IEEE80211_PPE_THRES_NSS_POS));
1957
1958         /*
1959          * Each pair is 6 bits, and we need to add the 7 "header" bits to the
1960          * total size.
1961          */
1962         n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
1963         n = DIV_ROUND_UP(n, 8);
1964
1965         return n;
1966 }
1967
1968 /* HE Operation defines */
1969 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK                   0x0000003f
1970 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK            0x000001c0
1971 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_OFFSET          6
1972 #define IEEE80211_HE_OPERATION_TWT_REQUIRED                     0x00000200
1973 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK               0x000ffc00
1974 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET             10
1975 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR                0x000100000
1976 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO                    0x000200000
1977 #define IEEE80211_HE_OPERATION_MULTI_BSSID_AP                   0x10000000
1978 #define IEEE80211_HE_OPERATION_TX_BSSID_INDICATOR               0x20000000
1979 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED               0x40000000
1980
1981 /*
1982  * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
1983  * @he_oper_ie: byte data of the He Operations IE, stating from the the byte
1984  *      after the ext ID byte. It is assumed that he_oper_ie has at least
1985  *      sizeof(struct ieee80211_he_operation) bytes, checked already in
1986  *      ieee802_11_parse_elems_crc()
1987  * @return the actual size of the IE data (not including header), or 0 on error
1988  */
1989 static inline u8
1990 ieee80211_he_oper_size(const u8 *he_oper_ie)
1991 {
1992         struct ieee80211_he_operation *he_oper = (void *)he_oper_ie;
1993         u8 oper_len = sizeof(struct ieee80211_he_operation);
1994         u32 he_oper_params;
1995
1996         /* Make sure the input is not NULL */
1997         if (!he_oper_ie)
1998                 return 0;
1999
2000         /* Calc required length */
2001         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2002         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2003                 oper_len += 3;
2004         if (he_oper_params & IEEE80211_HE_OPERATION_MULTI_BSSID_AP)
2005                 oper_len++;
2006
2007         /* Add the first byte (extension ID) to the total length */
2008         oper_len++;
2009
2010         return oper_len;
2011 }
2012
2013 /* Authentication algorithms */
2014 #define WLAN_AUTH_OPEN 0
2015 #define WLAN_AUTH_SHARED_KEY 1
2016 #define WLAN_AUTH_FT 2
2017 #define WLAN_AUTH_SAE 3
2018 #define WLAN_AUTH_FILS_SK 4
2019 #define WLAN_AUTH_FILS_SK_PFS 5
2020 #define WLAN_AUTH_FILS_PK 6
2021 #define WLAN_AUTH_LEAP 128
2022
2023 #define WLAN_AUTH_CHALLENGE_LEN 128
2024
2025 #define WLAN_CAPABILITY_ESS             (1<<0)
2026 #define WLAN_CAPABILITY_IBSS            (1<<1)
2027
2028 /*
2029  * A mesh STA sets the ESS and IBSS capability bits to zero.
2030  * however, this holds true for p2p probe responses (in the p2p_find
2031  * phase) as well.
2032  */
2033 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
2034         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
2035
2036 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
2037 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
2038 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
2039 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
2040 #define WLAN_CAPABILITY_PBCC            (1<<6)
2041 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
2042
2043 /* 802.11h */
2044 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
2045 #define WLAN_CAPABILITY_QOS             (1<<9)
2046 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
2047 #define WLAN_CAPABILITY_APSD            (1<<11)
2048 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
2049 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
2050 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
2051 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
2052
2053 /* DMG (60gHz) 802.11ad */
2054 /* type - bits 0..1 */
2055 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
2056 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
2057 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
2058 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
2059
2060 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
2061 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
2062 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
2063 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
2064
2065 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
2066 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
2067
2068 /* measurement */
2069 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
2070 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
2071 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
2072
2073 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
2074 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
2075 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
2076
2077 /* 802.11g ERP information element */
2078 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
2079 #define WLAN_ERP_USE_PROTECTION (1<<1)
2080 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
2081
2082 /* WLAN_ERP_BARKER_PREAMBLE values */
2083 enum {
2084         WLAN_ERP_PREAMBLE_SHORT = 0,
2085         WLAN_ERP_PREAMBLE_LONG = 1,
2086 };
2087
2088 /* Band ID, 802.11ad #8.4.1.45 */
2089 enum {
2090         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
2091         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
2092         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
2093         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
2094         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
2095         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
2096 };
2097
2098 /* Status codes */
2099 enum ieee80211_statuscode {
2100         WLAN_STATUS_SUCCESS = 0,
2101         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
2102         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
2103         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
2104         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
2105         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
2106         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
2107         WLAN_STATUS_CHALLENGE_FAIL = 15,
2108         WLAN_STATUS_AUTH_TIMEOUT = 16,
2109         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
2110         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
2111         /* 802.11b */
2112         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
2113         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
2114         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
2115         /* 802.11h */
2116         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
2117         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
2118         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
2119         /* 802.11g */
2120         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
2121         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
2122         /* 802.11w */
2123         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
2124         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
2125         /* 802.11i */
2126         WLAN_STATUS_INVALID_IE = 40,
2127         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
2128         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
2129         WLAN_STATUS_INVALID_AKMP = 43,
2130         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
2131         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
2132         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
2133         /* 802.11e */
2134         WLAN_STATUS_UNSPECIFIED_QOS = 32,
2135         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
2136         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
2137         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
2138         WLAN_STATUS_REQUEST_DECLINED = 37,
2139         WLAN_STATUS_INVALID_QOS_PARAM = 38,
2140         WLAN_STATUS_CHANGE_TSPEC = 39,
2141         WLAN_STATUS_WAIT_TS_DELAY = 47,
2142         WLAN_STATUS_NO_DIRECT_LINK = 48,
2143         WLAN_STATUS_STA_NOT_PRESENT = 49,
2144         WLAN_STATUS_STA_NOT_QSTA = 50,
2145         /* 802.11s */
2146         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
2147         WLAN_STATUS_FCG_NOT_SUPP = 78,
2148         WLAN_STATUS_STA_NO_TBTT = 78,
2149         /* 802.11ad */
2150         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
2151         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
2152         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
2153         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
2154         WLAN_STATUS_PERFORMING_FST_NOW = 87,
2155         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
2156         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
2157         WLAN_STATUS_REJECT_DSE_BAND = 96,
2158         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
2159         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
2160         /* 802.11ai */
2161         WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
2162         WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
2163 };
2164
2165
2166 /* Reason codes */
2167 enum ieee80211_reasoncode {
2168         WLAN_REASON_UNSPECIFIED = 1,
2169         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
2170         WLAN_REASON_DEAUTH_LEAVING = 3,
2171         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
2172         WLAN_REASON_DISASSOC_AP_BUSY = 5,
2173         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
2174         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
2175         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
2176         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
2177         /* 802.11h */
2178         WLAN_REASON_DISASSOC_BAD_POWER = 10,
2179         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
2180         /* 802.11i */
2181         WLAN_REASON_INVALID_IE = 13,
2182         WLAN_REASON_MIC_FAILURE = 14,
2183         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
2184         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
2185         WLAN_REASON_IE_DIFFERENT = 17,
2186         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
2187         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
2188         WLAN_REASON_INVALID_AKMP = 20,
2189         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
2190         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
2191         WLAN_REASON_IEEE8021X_FAILED = 23,
2192         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
2193         /* TDLS (802.11z) */
2194         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
2195         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
2196         /* 802.11e */
2197         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
2198         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
2199         WLAN_REASON_DISASSOC_LOW_ACK = 34,
2200         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
2201         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
2202         WLAN_REASON_QSTA_NOT_USE = 37,
2203         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
2204         WLAN_REASON_QSTA_TIMEOUT = 39,
2205         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
2206         /* 802.11s */
2207         WLAN_REASON_MESH_PEER_CANCELED = 52,
2208         WLAN_REASON_MESH_MAX_PEERS = 53,
2209         WLAN_REASON_MESH_CONFIG = 54,
2210         WLAN_REASON_MESH_CLOSE = 55,
2211         WLAN_REASON_MESH_MAX_RETRIES = 56,
2212         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
2213         WLAN_REASON_MESH_INVALID_GTK = 58,
2214         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
2215         WLAN_REASON_MESH_INVALID_SECURITY = 60,
2216         WLAN_REASON_MESH_PATH_ERROR = 61,
2217         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
2218         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
2219         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
2220         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
2221         WLAN_REASON_MESH_CHAN = 66,
2222 };
2223
2224
2225 /* Information Element IDs */
2226 enum ieee80211_eid {
2227         WLAN_EID_SSID = 0,
2228         WLAN_EID_SUPP_RATES = 1,
2229         WLAN_EID_FH_PARAMS = 2, /* reserved now */
2230         WLAN_EID_DS_PARAMS = 3,
2231         WLAN_EID_CF_PARAMS = 4,
2232         WLAN_EID_TIM = 5,
2233         WLAN_EID_IBSS_PARAMS = 6,
2234         WLAN_EID_COUNTRY = 7,
2235         /* 8, 9 reserved */
2236         WLAN_EID_REQUEST = 10,
2237         WLAN_EID_QBSS_LOAD = 11,
2238         WLAN_EID_EDCA_PARAM_SET = 12,
2239         WLAN_EID_TSPEC = 13,
2240         WLAN_EID_TCLAS = 14,
2241         WLAN_EID_SCHEDULE = 15,
2242         WLAN_EID_CHALLENGE = 16,
2243         /* 17-31 reserved for challenge text extension */
2244         WLAN_EID_PWR_CONSTRAINT = 32,
2245         WLAN_EID_PWR_CAPABILITY = 33,
2246         WLAN_EID_TPC_REQUEST = 34,
2247         WLAN_EID_TPC_REPORT = 35,
2248         WLAN_EID_SUPPORTED_CHANNELS = 36,
2249         WLAN_EID_CHANNEL_SWITCH = 37,
2250         WLAN_EID_MEASURE_REQUEST = 38,
2251         WLAN_EID_MEASURE_REPORT = 39,
2252         WLAN_EID_QUIET = 40,
2253         WLAN_EID_IBSS_DFS = 41,
2254         WLAN_EID_ERP_INFO = 42,
2255         WLAN_EID_TS_DELAY = 43,
2256         WLAN_EID_TCLAS_PROCESSING = 44,
2257         WLAN_EID_HT_CAPABILITY = 45,
2258         WLAN_EID_QOS_CAPA = 46,
2259         /* 47 reserved for Broadcom */
2260         WLAN_EID_RSN = 48,
2261         WLAN_EID_802_15_COEX = 49,
2262         WLAN_EID_EXT_SUPP_RATES = 50,
2263         WLAN_EID_AP_CHAN_REPORT = 51,
2264         WLAN_EID_NEIGHBOR_REPORT = 52,
2265         WLAN_EID_RCPI = 53,
2266         WLAN_EID_MOBILITY_DOMAIN = 54,
2267         WLAN_EID_FAST_BSS_TRANSITION = 55,
2268         WLAN_EID_TIMEOUT_INTERVAL = 56,
2269         WLAN_EID_RIC_DATA = 57,
2270         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
2271         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
2272         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
2273         WLAN_EID_HT_OPERATION = 61,
2274         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
2275         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
2276         WLAN_EID_ANTENNA_INFO = 64,
2277         WLAN_EID_RSNI = 65,
2278         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
2279         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
2280         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
2281         WLAN_EID_TIME_ADVERTISEMENT = 69,
2282         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
2283         WLAN_EID_MULTIPLE_BSSID = 71,
2284         WLAN_EID_BSS_COEX_2040 = 72,
2285         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
2286         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
2287         WLAN_EID_RIC_DESCRIPTOR = 75,
2288         WLAN_EID_MMIE = 76,
2289         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
2290         WLAN_EID_EVENT_REQUEST = 78,
2291         WLAN_EID_EVENT_REPORT = 79,
2292         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
2293         WLAN_EID_DIAGNOSTIC_REPORT = 81,
2294         WLAN_EID_LOCATION_PARAMS = 82,
2295         WLAN_EID_NON_TX_BSSID_CAP =  83,
2296         WLAN_EID_SSID_LIST = 84,
2297         WLAN_EID_MULTI_BSSID_IDX = 85,
2298         WLAN_EID_FMS_DESCRIPTOR = 86,
2299         WLAN_EID_FMS_REQUEST = 87,
2300         WLAN_EID_FMS_RESPONSE = 88,
2301         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
2302         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
2303         WLAN_EID_TSF_REQUEST = 91,
2304         WLAN_EID_TSF_RESPOSNE = 92,
2305         WLAN_EID_WNM_SLEEP_MODE = 93,
2306         WLAN_EID_TIM_BCAST_REQ = 94,
2307         WLAN_EID_TIM_BCAST_RESP = 95,
2308         WLAN_EID_COLL_IF_REPORT = 96,
2309         WLAN_EID_CHANNEL_USAGE = 97,
2310         WLAN_EID_TIME_ZONE = 98,
2311         WLAN_EID_DMS_REQUEST = 99,
2312         WLAN_EID_DMS_RESPONSE = 100,
2313         WLAN_EID_LINK_ID = 101,
2314         WLAN_EID_WAKEUP_SCHEDUL = 102,
2315         /* 103 reserved */
2316         WLAN_EID_CHAN_SWITCH_TIMING = 104,
2317         WLAN_EID_PTI_CONTROL = 105,
2318         WLAN_EID_PU_BUFFER_STATUS = 106,
2319         WLAN_EID_INTERWORKING = 107,
2320         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
2321         WLAN_EID_EXPEDITED_BW_REQ = 109,
2322         WLAN_EID_QOS_MAP_SET = 110,
2323         WLAN_EID_ROAMING_CONSORTIUM = 111,
2324         WLAN_EID_EMERGENCY_ALERT = 112,
2325         WLAN_EID_MESH_CONFIG = 113,
2326         WLAN_EID_MESH_ID = 114,
2327         WLAN_EID_LINK_METRIC_REPORT = 115,
2328         WLAN_EID_CONGESTION_NOTIFICATION = 116,
2329         WLAN_EID_PEER_MGMT = 117,
2330         WLAN_EID_CHAN_SWITCH_PARAM = 118,
2331         WLAN_EID_MESH_AWAKE_WINDOW = 119,
2332         WLAN_EID_BEACON_TIMING = 120,
2333         WLAN_EID_MCCAOP_SETUP_REQ = 121,
2334         WLAN_EID_MCCAOP_SETUP_RESP = 122,
2335         WLAN_EID_MCCAOP_ADVERT = 123,
2336         WLAN_EID_MCCAOP_TEARDOWN = 124,
2337         WLAN_EID_GANN = 125,
2338         WLAN_EID_RANN = 126,
2339         WLAN_EID_EXT_CAPABILITY = 127,
2340         /* 128, 129 reserved for Agere */
2341         WLAN_EID_PREQ = 130,
2342         WLAN_EID_PREP = 131,
2343         WLAN_EID_PERR = 132,
2344         /* 133-136 reserved for Cisco */
2345         WLAN_EID_PXU = 137,
2346         WLAN_EID_PXUC = 138,
2347         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
2348         WLAN_EID_MIC = 140,
2349         WLAN_EID_DESTINATION_URI = 141,
2350         WLAN_EID_UAPSD_COEX = 142,
2351         WLAN_EID_WAKEUP_SCHEDULE = 143,
2352         WLAN_EID_EXT_SCHEDULE = 144,
2353         WLAN_EID_STA_AVAILABILITY = 145,
2354         WLAN_EID_DMG_TSPEC = 146,
2355         WLAN_EID_DMG_AT = 147,
2356         WLAN_EID_DMG_CAP = 148,
2357         /* 149 reserved for Cisco */
2358         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
2359         WLAN_EID_DMG_OPERATION = 151,
2360         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
2361         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
2362         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
2363         /* 155-156 reserved for Cisco */
2364         WLAN_EID_AWAKE_WINDOW = 157,
2365         WLAN_EID_MULTI_BAND = 158,
2366         WLAN_EID_ADDBA_EXT = 159,
2367         WLAN_EID_NEXT_PCP_LIST = 160,
2368         WLAN_EID_PCP_HANDOVER = 161,
2369         WLAN_EID_DMG_LINK_MARGIN = 162,
2370         WLAN_EID_SWITCHING_STREAM = 163,
2371         WLAN_EID_SESSION_TRANSITION = 164,
2372         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
2373         WLAN_EID_CLUSTER_REPORT = 166,
2374         WLAN_EID_RELAY_CAP = 167,
2375         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
2376         WLAN_EID_BEAM_LINK_MAINT = 169,
2377         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
2378         WLAN_EID_U_PID = 171,
2379         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
2380         /* 173 reserved for Symbol */
2381         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
2382         WLAN_EID_QUIET_PERIOD_REQ = 175,
2383         /* 176 reserved for Symbol */
2384         WLAN_EID_QUIET_PERIOD_RESP = 177,
2385         /* 178-179 reserved for Symbol */
2386         /* 180 reserved for ISO/IEC 20011 */
2387         WLAN_EID_EPAC_POLICY = 182,
2388         WLAN_EID_CLISTER_TIME_OFF = 183,
2389         WLAN_EID_INTER_AC_PRIO = 184,
2390         WLAN_EID_SCS_DESCRIPTOR = 185,
2391         WLAN_EID_QLOAD_REPORT = 186,
2392         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
2393         WLAN_EID_HL_STREAM_ID = 188,
2394         WLAN_EID_GCR_GROUP_ADDR = 189,
2395         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
2396         WLAN_EID_VHT_CAPABILITY = 191,
2397         WLAN_EID_VHT_OPERATION = 192,
2398         WLAN_EID_EXTENDED_BSS_LOAD = 193,
2399         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
2400         WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
2401         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
2402         WLAN_EID_AID = 197,
2403         WLAN_EID_QUIET_CHANNEL = 198,
2404         WLAN_EID_OPMODE_NOTIF = 199,
2405
2406         WLAN_EID_VENDOR_SPECIFIC = 221,
2407         WLAN_EID_QOS_PARAMETER = 222,
2408         WLAN_EID_CAG_NUMBER = 237,
2409         WLAN_EID_AP_CSN = 239,
2410         WLAN_EID_FILS_INDICATION = 240,
2411         WLAN_EID_DILS = 241,
2412         WLAN_EID_FRAGMENT = 242,
2413         WLAN_EID_EXTENSION = 255
2414 };
2415
2416 /* Element ID Extensions for Element ID 255 */
2417 enum ieee80211_eid_ext {
2418         WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
2419         WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
2420         WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
2421         WLAN_EID_EXT_FILS_SESSION = 4,
2422         WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
2423         WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
2424         WLAN_EID_EXT_KEY_DELIVERY = 7,
2425         WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
2426         WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
2427         WLAN_EID_EXT_FILS_NONCE = 13,
2428         WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
2429         WLAN_EID_EXT_HE_CAPABILITY = 35,
2430         WLAN_EID_EXT_HE_OPERATION = 36,
2431         WLAN_EID_EXT_UORA = 37,
2432         WLAN_EID_EXT_HE_MU_EDCA = 38,
2433 };
2434
2435 /* Action category code */
2436 enum ieee80211_category {
2437         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
2438         WLAN_CATEGORY_QOS = 1,
2439         WLAN_CATEGORY_DLS = 2,
2440         WLAN_CATEGORY_BACK = 3,
2441         WLAN_CATEGORY_PUBLIC = 4,
2442         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
2443         WLAN_CATEGORY_HT = 7,
2444         WLAN_CATEGORY_SA_QUERY = 8,
2445         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
2446         WLAN_CATEGORY_WNM = 10,
2447         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
2448         WLAN_CATEGORY_TDLS = 12,
2449         WLAN_CATEGORY_MESH_ACTION = 13,
2450         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
2451         WLAN_CATEGORY_SELF_PROTECTED = 15,
2452         WLAN_CATEGORY_DMG = 16,
2453         WLAN_CATEGORY_WMM = 17,
2454         WLAN_CATEGORY_FST = 18,
2455         WLAN_CATEGORY_UNPROT_DMG = 20,
2456         WLAN_CATEGORY_VHT = 21,
2457         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
2458         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
2459 };
2460
2461 /* SPECTRUM_MGMT action code */
2462 enum ieee80211_spectrum_mgmt_actioncode {
2463         WLAN_ACTION_SPCT_MSR_REQ = 0,
2464         WLAN_ACTION_SPCT_MSR_RPRT = 1,
2465         WLAN_ACTION_SPCT_TPC_REQ = 2,
2466         WLAN_ACTION_SPCT_TPC_RPRT = 3,
2467         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
2468 };
2469
2470 /* HT action codes */
2471 enum ieee80211_ht_actioncode {
2472         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
2473         WLAN_HT_ACTION_SMPS = 1,
2474         WLAN_HT_ACTION_PSMP = 2,
2475         WLAN_HT_ACTION_PCO_PHASE = 3,
2476         WLAN_HT_ACTION_CSI = 4,
2477         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
2478         WLAN_HT_ACTION_COMPRESSED_BF = 6,
2479         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
2480 };
2481
2482 /* VHT action codes */
2483 enum ieee80211_vht_actioncode {
2484         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
2485         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
2486         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
2487 };
2488
2489 /* Self Protected Action codes */
2490 enum ieee80211_self_protected_actioncode {
2491         WLAN_SP_RESERVED = 0,
2492         WLAN_SP_MESH_PEERING_OPEN = 1,
2493         WLAN_SP_MESH_PEERING_CONFIRM = 2,
2494         WLAN_SP_MESH_PEERING_CLOSE = 3,
2495         WLAN_SP_MGK_INFORM = 4,
2496         WLAN_SP_MGK_ACK = 5,
2497 };
2498
2499 /* Mesh action codes */
2500 enum ieee80211_mesh_actioncode {
2501         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
2502         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
2503         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
2504         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
2505         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
2506         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
2507         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
2508         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
2509         WLAN_MESH_ACTION_MCCA_TEARDOWN,
2510         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
2511         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
2512 };
2513
2514 /* Security key length */
2515 enum ieee80211_key_len {
2516         WLAN_KEY_LEN_WEP40 = 5,
2517         WLAN_KEY_LEN_WEP104 = 13,
2518         WLAN_KEY_LEN_CCMP = 16,
2519         WLAN_KEY_LEN_CCMP_256 = 32,
2520         WLAN_KEY_LEN_TKIP = 32,
2521         WLAN_KEY_LEN_AES_CMAC = 16,
2522         WLAN_KEY_LEN_SMS4 = 32,
2523         WLAN_KEY_LEN_GCMP = 16,
2524         WLAN_KEY_LEN_GCMP_256 = 32,
2525         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
2526         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
2527         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
2528 };
2529
2530 #define IEEE80211_WEP_IV_LEN            4
2531 #define IEEE80211_WEP_ICV_LEN           4
2532 #define IEEE80211_CCMP_HDR_LEN          8
2533 #define IEEE80211_CCMP_MIC_LEN          8
2534 #define IEEE80211_CCMP_PN_LEN           6
2535 #define IEEE80211_CCMP_256_HDR_LEN      8
2536 #define IEEE80211_CCMP_256_MIC_LEN      16
2537 #define IEEE80211_CCMP_256_PN_LEN       6
2538 #define IEEE80211_TKIP_IV_LEN           8
2539 #define IEEE80211_TKIP_ICV_LEN          4
2540 #define IEEE80211_CMAC_PN_LEN           6
2541 #define IEEE80211_GMAC_PN_LEN           6
2542 #define IEEE80211_GCMP_HDR_LEN          8
2543 #define IEEE80211_GCMP_MIC_LEN          16
2544 #define IEEE80211_GCMP_PN_LEN           6
2545
2546 #define FILS_NONCE_LEN                  16
2547 #define FILS_MAX_KEK_LEN                64
2548
2549 #define FILS_ERP_MAX_USERNAME_LEN       16
2550 #define FILS_ERP_MAX_REALM_LEN          253
2551 #define FILS_ERP_MAX_RRK_LEN            64
2552
2553 #define PMK_MAX_LEN                     64
2554
2555 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
2556 enum ieee80211_pub_actioncode {
2557         WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
2558         WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
2559         WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
2560         WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
2561         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
2562         WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
2563         WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
2564         WLAN_PUB_ACTION_MSMT_PILOT = 7,
2565         WLAN_PUB_ACTION_DSE_PC = 8,
2566         WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
2567         WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
2568         WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
2569         WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
2570         WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
2571         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
2572         WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
2573         WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
2574         WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
2575         WLAN_PUB_ACTION_QMF_POLICY = 18,
2576         WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
2577         WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
2578         WLAN_PUB_ACTION_QLOAD_REPORT = 21,
2579         WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
2580         WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
2581         WLAN_PUB_ACTION_PUBLIC_KEY = 24,
2582         WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
2583         WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
2584         WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
2585         WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
2586         WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
2587         WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
2588         WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
2589         WLAN_PUB_ACTION_FTM_REQUEST = 32,
2590         WLAN_PUB_ACTION_FTM = 33,
2591         WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
2592 };
2593
2594 /* TDLS action codes */
2595 enum ieee80211_tdls_actioncode {
2596         WLAN_TDLS_SETUP_REQUEST = 0,
2597         WLAN_TDLS_SETUP_RESPONSE = 1,
2598         WLAN_TDLS_SETUP_CONFIRM = 2,
2599         WLAN_TDLS_TEARDOWN = 3,
2600         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
2601         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
2602         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
2603         WLAN_TDLS_PEER_PSM_REQUEST = 7,
2604         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
2605         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
2606         WLAN_TDLS_DISCOVERY_REQUEST = 10,
2607 };
2608
2609 /* Extended Channel Switching capability to be set in the 1st byte of
2610  * the @WLAN_EID_EXT_CAPABILITY information element
2611  */
2612 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
2613
2614 /* TDLS capabilities in the the 4th byte of @WLAN_EID_EXT_CAPABILITY */
2615 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
2616 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
2617 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
2618
2619 /* Interworking capabilities are set in 7th bit of 4th byte of the
2620  * @WLAN_EID_EXT_CAPABILITY information element
2621  */
2622 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
2623
2624 /*
2625  * TDLS capabililites to be enabled in the 5th byte of the
2626  * @WLAN_EID_EXT_CAPABILITY information element
2627  */
2628 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
2629 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
2630 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
2631
2632 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
2633 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
2634
2635 /* Defines the maximal number of MSDUs in an A-MSDU. */
2636 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
2637 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
2638
2639 /*
2640  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
2641  * information element
2642  */
2643 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
2644
2645 /* TDLS specific payload type in the LLC/SNAP header */
2646 #define WLAN_TDLS_SNAP_RFTYPE   0x2
2647
2648 /* BSS Coex IE information field bits */
2649 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
2650
2651 /**
2652  * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
2653  *
2654  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
2655  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
2656  *      that will be specified in a vendor specific information element
2657  */
2658 enum ieee80211_mesh_sync_method {
2659         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
2660         IEEE80211_SYNC_METHOD_VENDOR = 255,
2661 };
2662
2663 /**
2664  * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
2665  *
2666  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
2667  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
2668  *      be specified in a vendor specific information element
2669  */
2670 enum ieee80211_mesh_path_protocol {
2671         IEEE80211_PATH_PROTOCOL_HWMP = 1,
2672         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
2673 };
2674
2675 /**
2676  * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
2677  *
2678  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
2679  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
2680  *      specified in a vendor specific information element
2681  */
2682 enum ieee80211_mesh_path_metric {
2683         IEEE80211_PATH_METRIC_AIRTIME = 1,
2684         IEEE80211_PATH_METRIC_VENDOR = 255,
2685 };
2686
2687 /**
2688  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
2689  *
2690  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
2691  *
2692  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
2693  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
2694  *      this value
2695  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
2696  *      the proactive PREQ with proactive PREP subfield set to 0
2697  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
2698  *      supports the proactive PREQ with proactive PREP subfield set to 1
2699  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
2700  *      the proactive RANN
2701  */
2702 enum ieee80211_root_mode_identifier {
2703         IEEE80211_ROOTMODE_NO_ROOT = 0,
2704         IEEE80211_ROOTMODE_ROOT = 1,
2705         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
2706         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
2707         IEEE80211_PROACTIVE_RANN = 4,
2708 };
2709
2710 /*
2711  * IEEE 802.11-2007 7.3.2.9 Country information element
2712  *
2713  * Minimum length is 8 octets, ie len must be evenly
2714  * divisible by 2
2715  */
2716
2717 /* Although the spec says 8 I'm seeing 6 in practice */
2718 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
2719
2720 /* The Country String field of the element shall be 3 octets in length */
2721 #define IEEE80211_COUNTRY_STRING_LEN    3
2722
2723 /*
2724  * For regulatory extension stuff see IEEE 802.11-2007
2725  * Annex I (page 1141) and Annex J (page 1147). Also
2726  * review 7.3.2.9.
2727  *
2728  * When dot11RegulatoryClassesRequired is true and the
2729  * first_channel/reg_extension_id is >= 201 then the IE
2730  * compromises of the 'ext' struct represented below:
2731  *
2732  *  - Regulatory extension ID - when generating IE this just needs
2733  *    to be monotonically increasing for each triplet passed in
2734  *    the IE
2735  *  - Regulatory class - index into set of rules
2736  *  - Coverage class - index into air propagation time (Table 7-27),
2737  *    in microseconds, you can compute the air propagation time from
2738  *    the index by multiplying by 3, so index 10 yields a propagation
2739  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
2740  *    yet. A value of 0 inicates air propagation of <= 1 us.
2741  *
2742  *  See also Table I.2 for Emission limit sets and table
2743  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
2744  *  a reg_class to an emission limit set and behavior limit set.
2745  */
2746 #define IEEE80211_COUNTRY_EXTENSION_ID 201
2747
2748 /*
2749  *  Channels numbers in the IE must be monotonically increasing
2750  *  if dot11RegulatoryClassesRequired is not true.
2751  *
2752  *  If dot11RegulatoryClassesRequired is true consecutive
2753  *  subband triplets following a regulatory triplet shall
2754  *  have monotonically increasing first_channel number fields.
2755  *
2756  *  Channel numbers shall not overlap.
2757  *
2758  *  Note that max_power is signed.
2759  */
2760 struct ieee80211_country_ie_triplet {
2761         union {
2762                 struct {
2763                         u8 first_channel;
2764                         u8 num_channels;
2765                         s8 max_power;
2766                 } __packed chans;
2767                 struct {
2768                         u8 reg_extension_id;
2769                         u8 reg_class;
2770                         u8 coverage_class;
2771                 } __packed ext;
2772         };
2773 } __packed;
2774
2775 enum ieee80211_timeout_interval_type {
2776         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
2777         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
2778         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
2779 };
2780
2781 /**
2782  * struct ieee80211_timeout_interval_ie - Timeout Interval element
2783  * @type: type, see &enum ieee80211_timeout_interval_type
2784  * @value: timeout interval value
2785  */
2786 struct ieee80211_timeout_interval_ie {
2787         u8 type;
2788         __le32 value;
2789 } __packed;
2790
2791 /**
2792  * enum ieee80211_idle_options - BSS idle options
2793  * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
2794  *      protected frame to the AP to reset the idle timer at the AP for
2795  *      the station.
2796  */
2797 enum ieee80211_idle_options {
2798         WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
2799 };
2800
2801 /**
2802  * struct ieee80211_bss_max_idle_period_ie
2803  *
2804  * This structure refers to "BSS Max idle period element"
2805  *
2806  * @max_idle_period: indicates the time period during which a station can
2807  *      refrain from transmitting frames to its associated AP without being
2808  *      disassociated. In units of 1000 TUs.
2809  * @idle_options: indicates the options associated with the BSS idle capability
2810  *      as specified in &enum ieee80211_idle_options.
2811  */
2812 struct ieee80211_bss_max_idle_period_ie {
2813         __le16 max_idle_period;
2814         u8 idle_options;
2815 } __packed;
2816
2817 /* BACK action code */
2818 enum ieee80211_back_actioncode {
2819         WLAN_ACTION_ADDBA_REQ = 0,
2820         WLAN_ACTION_ADDBA_RESP = 1,
2821         WLAN_ACTION_DELBA = 2,
2822 };
2823
2824 /* BACK (block-ack) parties */
2825 enum ieee80211_back_parties {
2826         WLAN_BACK_RECIPIENT = 0,
2827         WLAN_BACK_INITIATOR = 1,
2828 };
2829
2830 /* SA Query action */
2831 enum ieee80211_sa_query_action {
2832         WLAN_ACTION_SA_QUERY_REQUEST = 0,
2833         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
2834 };
2835
2836
2837 #define SUITE(oui, id)  (((oui) << 8) | (id))
2838
2839 /* cipher suite selectors */
2840 #define WLAN_CIPHER_SUITE_USE_GROUP     SUITE(0x000FAC, 0)
2841 #define WLAN_CIPHER_SUITE_WEP40         SUITE(0x000FAC, 1)
2842 #define WLAN_CIPHER_SUITE_TKIP          SUITE(0x000FAC, 2)
2843 /* reserved:                            SUITE(0x000FAC, 3) */
2844 #define WLAN_CIPHER_SUITE_CCMP          SUITE(0x000FAC, 4)
2845 #define WLAN_CIPHER_SUITE_WEP104        SUITE(0x000FAC, 5)
2846 #define WLAN_CIPHER_SUITE_AES_CMAC      SUITE(0x000FAC, 6)
2847 #define WLAN_CIPHER_SUITE_GCMP          SUITE(0x000FAC, 8)
2848 #define WLAN_CIPHER_SUITE_GCMP_256      SUITE(0x000FAC, 9)
2849 #define WLAN_CIPHER_SUITE_CCMP_256      SUITE(0x000FAC, 10)
2850 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  SUITE(0x000FAC, 11)
2851 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  SUITE(0x000FAC, 12)
2852 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  SUITE(0x000FAC, 13)
2853
2854 #define WLAN_CIPHER_SUITE_SMS4          SUITE(0x001472, 1)
2855
2856 /* AKM suite selectors */
2857 #define WLAN_AKM_SUITE_8021X                    SUITE(0x000FAC, 1)
2858 #define WLAN_AKM_SUITE_PSK                      SUITE(0x000FAC, 2)
2859 #define WLAN_AKM_SUITE_FT_8021X                 SUITE(0x000FAC, 3)
2860 #define WLAN_AKM_SUITE_FT_PSK                   SUITE(0x000FAC, 4)
2861 #define WLAN_AKM_SUITE_8021X_SHA256             SUITE(0x000FAC, 5)
2862 #define WLAN_AKM_SUITE_PSK_SHA256               SUITE(0x000FAC, 6)
2863 #define WLAN_AKM_SUITE_TDLS                     SUITE(0x000FAC, 7)
2864 #define WLAN_AKM_SUITE_SAE                      SUITE(0x000FAC, 8)
2865 #define WLAN_AKM_SUITE_FT_OVER_SAE              SUITE(0x000FAC, 9)
2866 #define WLAN_AKM_SUITE_8021X_SUITE_B            SUITE(0x000FAC, 11)
2867 #define WLAN_AKM_SUITE_8021X_SUITE_B_192        SUITE(0x000FAC, 12)
2868 #define WLAN_AKM_SUITE_FILS_SHA256              SUITE(0x000FAC, 14)
2869 #define WLAN_AKM_SUITE_FILS_SHA384              SUITE(0x000FAC, 15)
2870 #define WLAN_AKM_SUITE_FT_FILS_SHA256           SUITE(0x000FAC, 16)
2871 #define WLAN_AKM_SUITE_FT_FILS_SHA384           SUITE(0x000FAC, 17)
2872
2873 #define WLAN_MAX_KEY_LEN                32
2874
2875 #define WLAN_PMK_NAME_LEN               16
2876 #define WLAN_PMKID_LEN                  16
2877 #define WLAN_PMK_LEN_EAP_LEAP           16
2878 #define WLAN_PMK_LEN                    32
2879 #define WLAN_PMK_LEN_SUITE_B_192        48
2880
2881 #define WLAN_OUI_WFA                    0x506f9a
2882 #define WLAN_OUI_TYPE_WFA_P2P           9
2883 #define WLAN_OUI_MICROSOFT              0x0050f2
2884 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
2885 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
2886 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
2887 #define WLAN_OUI_TYPE_MICROSOFT_TPC     8
2888
2889 /*
2890  * WMM/802.11e Tspec Element
2891  */
2892 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
2893 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
2894
2895 enum ieee80211_tspec_status_code {
2896         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
2897         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
2898 };
2899
2900 struct ieee80211_tspec_ie {
2901         u8 element_id;
2902         u8 len;
2903         u8 oui[3];
2904         u8 oui_type;
2905         u8 oui_subtype;
2906         u8 version;
2907         __le16 tsinfo;
2908         u8 tsinfo_resvd;
2909         __le16 nominal_msdu;
2910         __le16 max_msdu;
2911         __le32 min_service_int;
2912         __le32 max_service_int;
2913         __le32 inactivity_int;
2914         __le32 suspension_int;
2915         __le32 service_start_time;
2916         __le32 min_data_rate;
2917         __le32 mean_data_rate;
2918         __le32 peak_data_rate;
2919         __le32 max_burst_size;
2920         __le32 delay_bound;
2921         __le32 min_phy_rate;
2922         __le16 sba;
2923         __le16 medium_time;
2924 } __packed;
2925
2926 /**
2927  * ieee80211_get_qos_ctl - get pointer to qos control bytes
2928  * @hdr: the frame
2929  *
2930  * The qos ctrl bytes come after the frame_control, duration, seq_num
2931  * and 3 or 4 addresses of length ETH_ALEN.
2932  * 3 addr: 2 + 2 + 2 + 3*6 = 24
2933  * 4 addr: 2 + 2 + 2 + 4*6 = 30
2934  */
2935 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
2936 {
2937         if (ieee80211_has_a4(hdr->frame_control))
2938                 return (u8 *)hdr + 30;
2939         else
2940                 return (u8 *)hdr + 24;
2941 }
2942
2943 /**
2944  * ieee80211_get_tid - get qos TID
2945  * @hdr: the frame
2946  */
2947 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
2948 {
2949         u8 *qc = ieee80211_get_qos_ctl(hdr);
2950
2951         return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
2952 }
2953
2954 /**
2955  * ieee80211_get_SA - get pointer to SA
2956  * @hdr: the frame
2957  *
2958  * Given an 802.11 frame, this function returns the offset
2959  * to the source address (SA). It does not verify that the
2960  * header is long enough to contain the address, and the
2961  * header must be long enough to contain the frame control
2962  * field.
2963  */
2964 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
2965 {
2966         if (ieee80211_has_a4(hdr->frame_control))
2967                 return hdr->addr4;
2968         if (ieee80211_has_fromds(hdr->frame_control))
2969                 return hdr->addr3;
2970         return hdr->addr2;
2971 }
2972
2973 /**
2974  * ieee80211_get_DA - get pointer to DA
2975  * @hdr: the frame
2976  *
2977  * Given an 802.11 frame, this function returns the offset
2978  * to the destination address (DA). It does not verify that
2979  * the header is long enough to contain the address, and the
2980  * header must be long enough to contain the frame control
2981  * field.
2982  */
2983 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
2984 {
2985         if (ieee80211_has_tods(hdr->frame_control))
2986                 return hdr->addr3;
2987         else
2988                 return hdr->addr1;
2989 }
2990
2991 /**
2992  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
2993  * @hdr: the frame (buffer must include at least the first octet of payload)
2994  */
2995 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
2996 {
2997         if (ieee80211_is_disassoc(hdr->frame_control) ||
2998             ieee80211_is_deauth(hdr->frame_control))
2999                 return true;
3000
3001         if (ieee80211_is_action(hdr->frame_control)) {
3002                 u8 *category;
3003
3004                 /*
3005                  * Action frames, excluding Public Action frames, are Robust
3006                  * Management Frames. However, if we are looking at a Protected
3007                  * frame, skip the check since the data may be encrypted and
3008                  * the frame has already been found to be a Robust Management
3009                  * Frame (by the other end).
3010                  */
3011                 if (ieee80211_has_protected(hdr->frame_control))
3012                         return true;
3013                 category = ((u8 *) hdr) + 24;
3014                 return *category != WLAN_CATEGORY_PUBLIC &&
3015                         *category != WLAN_CATEGORY_HT &&
3016                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
3017                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
3018                         *category != WLAN_CATEGORY_UNPROT_DMG &&
3019                         *category != WLAN_CATEGORY_VHT &&
3020                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
3021         }
3022
3023         return false;
3024 }
3025
3026 /**
3027  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
3028  * @skb: the skb containing the frame, length will be checked
3029  */
3030 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
3031 {
3032         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3033                 return false;
3034         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
3035 }
3036
3037 /**
3038  * ieee80211_is_public_action - check if frame is a public action frame
3039  * @hdr: the frame
3040  * @len: length of the frame
3041  */
3042 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
3043                                               size_t len)
3044 {
3045         struct ieee80211_mgmt *mgmt = (void *)hdr;
3046
3047         if (len < IEEE80211_MIN_ACTION_SIZE)
3048                 return false;
3049         if (!ieee80211_is_action(hdr->frame_control))
3050                 return false;
3051         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
3052 }
3053
3054 /**
3055  * _ieee80211_is_group_privacy_action - check if frame is a group addressed
3056  * privacy action frame
3057  * @hdr: the frame
3058  */
3059 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
3060 {
3061         struct ieee80211_mgmt *mgmt = (void *)hdr;
3062
3063         if (!ieee80211_is_action(hdr->frame_control) ||
3064             !is_multicast_ether_addr(hdr->addr1))
3065                 return false;
3066
3067         return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
3068                mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
3069 }
3070
3071 /**
3072  * ieee80211_is_group_privacy_action - check if frame is a group addressed
3073  * privacy action frame
3074  * @skb: the skb containing the frame, length will be checked
3075  */
3076 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
3077 {
3078         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
3079                 return false;
3080         return _ieee80211_is_group_privacy_action((void *)skb->data);
3081 }
3082
3083 /**
3084  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
3085  * @tu: the TUs
3086  */
3087 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
3088 {
3089         return 1024 * tu;
3090 }
3091
3092 /**
3093  * ieee80211_check_tim - check if AID bit is set in TIM
3094  * @tim: the TIM IE
3095  * @tim_len: length of the TIM IE
3096  * @aid: the AID to look for
3097  */
3098 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
3099                                        u8 tim_len, u16 aid)
3100 {
3101         u8 mask;
3102         u8 index, indexn1, indexn2;
3103
3104         if (unlikely(!tim || tim_len < sizeof(*tim)))
3105                 return false;
3106
3107         aid &= 0x3fff;
3108         index = aid / 8;
3109         mask  = 1 << (aid & 7);
3110
3111         indexn1 = tim->bitmap_ctrl & 0xfe;
3112         indexn2 = tim_len + indexn1 - 4;
3113
3114         if (index < indexn1 || index > indexn2)
3115                 return false;
3116
3117         index -= indexn1;
3118
3119         return !!(tim->virtual_map[index] & mask);
3120 }
3121
3122 /**
3123  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
3124  * @skb: the skb containing the frame, length will not be checked
3125  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
3126  *
3127  * This function assumes the frame is a data frame, and that the network header
3128  * is in the correct place.
3129  */
3130 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
3131 {
3132         if (!skb_is_nonlinear(skb) &&
3133             skb->len > (skb_network_offset(skb) + 2)) {
3134                 /* Point to where the indication of TDLS should start */
3135                 const u8 *tdls_data = skb_network_header(skb) - 2;
3136
3137                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
3138                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
3139                     tdls_data[3] == WLAN_CATEGORY_TDLS)
3140                         return tdls_data[4];
3141         }
3142
3143         return -1;
3144 }
3145
3146 /* convert time units */
3147 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
3148 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
3149
3150 /**
3151  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
3152  * @skb: the skb containing the frame, length will be checked
3153  *
3154  * This function checks if it's either TPC report action frame or Link
3155  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
3156  * and 8.5.7.5 accordingly.
3157  */
3158 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
3159 {
3160         struct ieee80211_mgmt *mgmt = (void *)skb->data;
3161
3162         if (!ieee80211_is_action(mgmt->frame_control))
3163                 return false;
3164
3165         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
3166                        sizeof(mgmt->u.action.u.tpc_report))
3167                 return false;
3168
3169         /*
3170          * TPC report - check that:
3171          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
3172          * spectrum management action = 3 (TPC/Link Measurement report)
3173          * TPC report EID = 35
3174          * TPC report element length = 2
3175          *
3176          * The spectrum management's tpc_report struct is used here both for
3177          * parsing tpc_report and radio measurement's link measurement report
3178          * frame, since the relevant part is identical in both frames.
3179          */
3180         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
3181             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
3182                 return false;
3183
3184         /* both spectrum mgmt and link measurement have same action code */
3185         if (mgmt->u.action.u.tpc_report.action_code !=
3186             WLAN_ACTION_SPCT_TPC_RPRT)
3187                 return false;
3188
3189         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
3190             mgmt->u.action.u.tpc_report.tpc_elem_length !=
3191             sizeof(struct ieee80211_tpc_report_ie))
3192                 return false;
3193
3194         return true;
3195 }
3196
3197 struct element {
3198         u8 id;
3199         u8 datalen;
3200         u8 data[];
3201 } __packed;
3202
3203 /* element iteration helpers */
3204 #define for_each_element(_elem, _data, _datalen)                        \
3205         for (_elem = (const struct element *)(_data);                   \
3206              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
3207                 (int)sizeof(*_elem) &&                                  \
3208              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
3209                 (int)sizeof(*_elem) + _elem->datalen;                   \
3210              _elem = (const struct element *)(_elem->data + _elem->datalen))
3211
3212 #define for_each_element_id(element, _id, data, datalen)                \
3213         for_each_element(element, data, datalen)                        \
3214                 if (element->id == (_id))
3215
3216 #define for_each_element_extid(element, extid, data, datalen)           \
3217         for_each_element(element, data, datalen)                        \
3218                 if (element->id == WLAN_EID_EXTENSION &&                \
3219                     element->datalen > 0 &&                             \
3220                     element->data[0] == (extid))
3221
3222 #define for_each_subelement(sub, element)                               \
3223         for_each_element(sub, (element)->data, (element)->datalen)
3224
3225 #define for_each_subelement_id(sub, id, element)                        \
3226         for_each_element_id(sub, id, (element)->data, (element)->datalen)
3227
3228 #define for_each_subelement_extid(sub, extid, element)                  \
3229         for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
3230
3231 /**
3232  * for_each_element_completed - determine if element parsing consumed all data
3233  * @element: element pointer after for_each_element() or friends
3234  * @data: same data pointer as passed to for_each_element() or friends
3235  * @datalen: same data length as passed to for_each_element() or friends
3236  *
3237  * This function returns %true if all the data was parsed or considered
3238  * while walking the elements. Only use this if your for_each_element()
3239  * loop cannot be broken out of, otherwise it always returns %false.
3240  *
3241  * If some data was malformed, this returns %false since the last parsed
3242  * element will not fill the whole remaining data.
3243  */
3244 static inline bool for_each_element_completed(const struct element *element,
3245                                               const void *data, size_t datalen)
3246 {
3247         return (const u8 *)element == (const u8 *)data + datalen;
3248 }
3249
3250 #endif /* LINUX_IEEE80211_H */