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