include/linux/ieee80211.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * IEEE 802.11 defines
   4  *
   5  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   6  * <jkmaline@cc.hut.fi>
   7  * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
   8  * Copyright (c) 2005, Devicescape Software, Inc.
   9  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
  10  * Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
  11  * Copyright (c) 2016 - 2017 Intel Deutschland GmbH
  12  * Copyright (c) 2018 - 2023 Intel Corporation
  13  */
  14
  15 #ifndef LINUX_IEEE80211_H
  16 #define LINUX_IEEE80211_H
  17
  18 #include <linux/types.h>
  19 #include <linux/if_ether.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/bitfield.h>
  22 #include <asm/byteorder.h>
  23 #include <asm/unaligned.h>
  24
  25 /*
  26  * DS bit usage
  27  *
  28  * TA = transmitter address
  29  * RA = receiver address
  30  * DA = destination address
  31  * SA = source address
  32  *
  33  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  34  * -----------------------------------------------------------------
  35  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  36  *  0       1       DA      BSSID   SA      -       AP -> STA
  37  *  1       0       BSSID   SA      DA      -       AP <- STA
  38  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  39  */
  40
  41 #define FCS_LEN 4
  42
  43 #define IEEE80211_FCTL_VERS             0x0003
  44 #define IEEE80211_FCTL_FTYPE            0x000c
  45 #define IEEE80211_FCTL_STYPE            0x00f0
  46 #define IEEE80211_FCTL_TODS             0x0100
  47 #define IEEE80211_FCTL_FROMDS           0x0200
  48 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  49 #define IEEE80211_FCTL_RETRY            0x0800
  50 #define IEEE80211_FCTL_PM               0x1000
  51 #define IEEE80211_FCTL_MOREDATA         0x2000
  52 #define IEEE80211_FCTL_PROTECTED        0x4000
  53 #define IEEE80211_FCTL_ORDER            0x8000
  54 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  55
  56 #define IEEE80211_SCTL_FRAG             0x000F
  57 #define IEEE80211_SCTL_SEQ              0xFFF0
  58
  59 #define IEEE80211_FTYPE_MGMT            0x0000
  60 #define IEEE80211_FTYPE_CTL             0x0004
  61 #define IEEE80211_FTYPE_DATA            0x0008
  62 #define IEEE80211_FTYPE_EXT             0x000c
  63
  64 /* management */
  65 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  66 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  67 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  68 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  69 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  70 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  71 #define IEEE80211_STYPE_BEACON          0x0080
  72 #define IEEE80211_STYPE_ATIM            0x0090
  73 #define IEEE80211_STYPE_DISASSOC        0x00A0
  74 #define IEEE80211_STYPE_AUTH            0x00B0
  75 #define IEEE80211_STYPE_DEAUTH          0x00C0
  76 #define IEEE80211_STYPE_ACTION          0x00D0
  77
  78 /* control */
  79 #define IEEE80211_STYPE_TRIGGER         0x0020
  80 #define IEEE80211_STYPE_CTL_EXT         0x0060
  81 #define IEEE80211_STYPE_BACK_REQ        0x0080
  82 #define IEEE80211_STYPE_BACK            0x0090
  83 #define IEEE80211_STYPE_PSPOLL          0x00A0
  84 #define IEEE80211_STYPE_RTS             0x00B0
  85 #define IEEE80211_STYPE_CTS             0x00C0
  86 #define IEEE80211_STYPE_ACK             0x00D0
  87 #define IEEE80211_STYPE_CFEND           0x00E0
  88 #define IEEE80211_STYPE_CFENDACK        0x00F0
  89
  90 /* data */
  91 #define IEEE80211_STYPE_DATA                    0x0000
  92 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  93 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  94 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  95 #define IEEE80211_STYPE_NULLFUNC                0x0040
  96 #define IEEE80211_STYPE_CFACK                   0x0050
  97 #define IEEE80211_STYPE_CFPOLL                  0x0060
  98 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  99 #define IEEE80211_STYPE_QOS_DATA                0x0080
 100 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
 101 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
 102 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
 103 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
 104 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
 105 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
 106 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 107
 108 /* extension, added by 802.11ad */
 109 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 110 #define IEEE80211_STYPE_S1G_BEACON              0x0010
 111
 112 /* bits unique to S1G beacon */
 113 #define IEEE80211_S1G_BCN_NEXT_TBTT     0x100
 114
 115 /* see 802.11ah-2016 9.9 NDP CMAC frames */
 116 #define IEEE80211_S1G_1MHZ_NDP_BITS     25
 117 #define IEEE80211_S1G_1MHZ_NDP_BYTES    4
 118 #define IEEE80211_S1G_2MHZ_NDP_BITS     37
 119 #define IEEE80211_S1G_2MHZ_NDP_BYTES    5
 120
 121 #define IEEE80211_NDP_FTYPE_CTS                 0
 122 #define IEEE80211_NDP_FTYPE_CF_END              0
 123 #define IEEE80211_NDP_FTYPE_PS_POLL             1
 124 #define IEEE80211_NDP_FTYPE_ACK                 2
 125 #define IEEE80211_NDP_FTYPE_PS_POLL_ACK         3
 126 #define IEEE80211_NDP_FTYPE_BA                  4
 127 #define IEEE80211_NDP_FTYPE_BF_REPORT_POLL      5
 128 #define IEEE80211_NDP_FTYPE_PAGING              6
 129 #define IEEE80211_NDP_FTYPE_PREQ                7
 130
 131 #define SM64(f, v)      ((((u64)v) << f##_S) & f)
 132
 133 /* NDP CMAC frame fields */
 134 #define IEEE80211_NDP_FTYPE                    0x0000000000000007
 135 #define IEEE80211_NDP_FTYPE_S                  0x0000000000000000
 136
 137 /* 1M Probe Request 11ah 9.9.3.1.1 */
 138 #define IEEE80211_NDP_1M_PREQ_ANO      0x0000000000000008
 139 #define IEEE80211_NDP_1M_PREQ_ANO_S                     3
 140 #define IEEE80211_NDP_1M_PREQ_CSSID    0x00000000000FFFF0
 141 #define IEEE80211_NDP_1M_PREQ_CSSID_S                   4
 142 #define IEEE80211_NDP_1M_PREQ_RTYPE    0x0000000000100000
 143 #define IEEE80211_NDP_1M_PREQ_RTYPE_S                  20
 144 #define IEEE80211_NDP_1M_PREQ_RSV      0x0000000001E00000
 145 #define IEEE80211_NDP_1M_PREQ_RSV      0x0000000001E00000
 146 /* 2M Probe Request 11ah 9.9.3.1.2 */
 147 #define IEEE80211_NDP_2M_PREQ_ANO      0x0000000000000008
 148 #define IEEE80211_NDP_2M_PREQ_ANO_S                     3
 149 #define IEEE80211_NDP_2M_PREQ_CSSID    0x0000000FFFFFFFF0
 150 #define IEEE80211_NDP_2M_PREQ_CSSID_S                   4
 151 #define IEEE80211_NDP_2M_PREQ_RTYPE    0x0000001000000000
 152 #define IEEE80211_NDP_2M_PREQ_RTYPE_S                  36
 153
 154 #define IEEE80211_ANO_NETTYPE_WILD              15
 155
 156 /* bits unique to S1G beacon */
 157 #define IEEE80211_S1G_BCN_NEXT_TBTT    0x100
 158
 159 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 160 #define IEEE80211_CTL_EXT_POLL          0x2000
 161 #define IEEE80211_CTL_EXT_SPR           0x3000
 162 #define IEEE80211_CTL_EXT_GRANT 0x4000
 163 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 164 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 165 #define IEEE80211_CTL_EXT_SSW           0x8000
 166 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 167 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 168
 169
 170 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 171 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 172 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 173
 174
 175 /* PV1 Layout IEEE 802.11-2020 9.8.3.1 */
 176 #define IEEE80211_PV1_FCTL_VERS         0x0003
 177 #define IEEE80211_PV1_FCTL_FTYPE        0x001c
 178 #define IEEE80211_PV1_FCTL_STYPE        0x00e0
 179 #define IEEE80211_PV1_FCTL_FROMDS               0x0100
 180 #define IEEE80211_PV1_FCTL_MOREFRAGS    0x0200
 181 #define IEEE80211_PV1_FCTL_PM           0x0400
 182 #define IEEE80211_PV1_FCTL_MOREDATA     0x0800
 183 #define IEEE80211_PV1_FCTL_PROTECTED    0x1000
 184 #define IEEE80211_PV1_FCTL_END_SP       0x2000
 185 #define IEEE80211_PV1_FCTL_RELAYED      0x4000
 186 #define IEEE80211_PV1_FCTL_ACK_POLICY   0x8000
 187 #define IEEE80211_PV1_FCTL_CTL_EXT      0x0f00
 188
 189 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 190 {
 191         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 192 }
 193
 194 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 195 {
 196         return (sn1 + sn2) & IEEE80211_SN_MASK;
 197 }
 198
 199 static inline u16 ieee80211_sn_inc(u16 sn)
 200 {
 201         return ieee80211_sn_add(sn, 1);
 202 }
 203
 204 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 205 {
 206         return (sn1 - sn2) & IEEE80211_SN_MASK;
 207 }
 208
 209 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 210 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 211
 212 /* miscellaneous IEEE 802.11 constants */
 213 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 214 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 215 #define IEEE80211_MAX_AID               2007
 216 #define IEEE80211_MAX_AID_S1G           8191
 217 #define IEEE80211_MAX_TIM_LEN           251
 218 #define IEEE80211_MAX_MESH_PEERINGS     63
 219 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 220    6.2.1.1.2.
 221
 222    802.11e clarifies the figure in section 7.1.2. The frame body is
 223    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 224 #define IEEE80211_MAX_DATA_LEN          2304
 225 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 226  * to 7920 bytes, see 8.2.3 General frame format
 227  */
 228 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 229 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 230 #define IEEE80211_MAX_FRAME_LEN         2352
 231
 232 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
 233 #define IEEE80211_MAX_MPDU_LEN_HT_BA            4095
 234
 235 /* Maximal size of an A-MSDU */
 236 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 237 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 238
 239 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 240 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 241 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 242
 243 #define IEEE80211_MAX_SSID_LEN          32
 244
 245 #define IEEE80211_MAX_MESH_ID_LEN       32
 246
 247 #define IEEE80211_FIRST_TSPEC_TSID      8
 248 #define IEEE80211_NUM_TIDS              16
 249
 250 /* number of user priorities 802.11 uses */
 251 #define IEEE80211_NUM_UPS               8
 252 /* number of ACs */
 253 #define IEEE80211_NUM_ACS               4
 254
 255 #define IEEE80211_QOS_CTL_LEN           2
 256 /* 1d tag mask */
 257 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 258 /* TID mask */
 259 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 260 /* EOSP */
 261 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 262 /* ACK policy */
 263 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 264 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 265 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 266 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 267 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 268 /* A-MSDU 802.11n */
 269 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 270 /* Mesh Control 802.11s */
 271 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 272
 273 /* Mesh Power Save Level */
 274 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 275 /* Mesh Receiver Service Period Initiated */
 276 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 277
 278 /* U-APSD queue for WMM IEs sent by AP */
 279 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 280 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 281
 282 /* U-APSD queues for WMM IEs sent by STA */
 283 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 284 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 285 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 286 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 287 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 288
 289 /* U-APSD max SP length for WMM IEs sent by STA */
 290 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 291 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 292 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 293 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 294 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 295 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 296
 297 #define IEEE80211_HT_CTL_LEN            4
 298
 299 /* trigger type within common_info of trigger frame */
 300 #define IEEE80211_TRIGGER_TYPE_MASK             0xf
 301 #define IEEE80211_TRIGGER_TYPE_BASIC            0x0
 302 #define IEEE80211_TRIGGER_TYPE_BFRP             0x1
 303 #define IEEE80211_TRIGGER_TYPE_MU_BAR           0x2
 304 #define IEEE80211_TRIGGER_TYPE_MU_RTS           0x3
 305 #define IEEE80211_TRIGGER_TYPE_BSRP             0x4
 306 #define IEEE80211_TRIGGER_TYPE_GCR_MU_BAR       0x5
 307 #define IEEE80211_TRIGGER_TYPE_BQRP             0x6
 308 #define IEEE80211_TRIGGER_TYPE_NFRP             0x7
 309
 310 /* UL-bandwidth within common_info of trigger frame */
 311 #define IEEE80211_TRIGGER_ULBW_MASK             0xc0000
 312 #define IEEE80211_TRIGGER_ULBW_20MHZ            0x0
 313 #define IEEE80211_TRIGGER_ULBW_40MHZ            0x1
 314 #define IEEE80211_TRIGGER_ULBW_80MHZ            0x2
 315 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ     0x3
 316
 317 struct ieee80211_hdr {
 318         __le16 frame_control;
 319         __le16 duration_id;
 320         struct_group(addrs,
 321                 u8 addr1[ETH_ALEN];
 322                 u8 addr2[ETH_ALEN];
 323                 u8 addr3[ETH_ALEN];
 324         );
 325         __le16 seq_ctrl;
 326         u8 addr4[ETH_ALEN];
 327 } __packed __aligned(2);
 328
 329 struct ieee80211_hdr_3addr {
 330         __le16 frame_control;
 331         __le16 duration_id;
 332         u8 addr1[ETH_ALEN];
 333         u8 addr2[ETH_ALEN];
 334         u8 addr3[ETH_ALEN];
 335         __le16 seq_ctrl;
 336 } __packed __aligned(2);
 337
 338 struct ieee80211_qos_hdr {
 339         __le16 frame_control;
 340         __le16 duration_id;
 341         u8 addr1[ETH_ALEN];
 342         u8 addr2[ETH_ALEN];
 343         u8 addr3[ETH_ALEN];
 344         __le16 seq_ctrl;
 345         __le16 qos_ctrl;
 346 } __packed __aligned(2);
 347
 348 struct ieee80211_qos_hdr_4addr {
 349         __le16 frame_control;
 350         __le16 duration_id;
 351         u8 addr1[ETH_ALEN];
 352         u8 addr2[ETH_ALEN];
 353         u8 addr3[ETH_ALEN];
 354         __le16 seq_ctrl;
 355         u8 addr4[ETH_ALEN];
 356         __le16 qos_ctrl;
 357 } __packed __aligned(2);
 358
 359 struct ieee80211_trigger {
 360         __le16 frame_control;
 361         __le16 duration;
 362         u8 ra[ETH_ALEN];
 363         u8 ta[ETH_ALEN];
 364         __le64 common_info;
 365         u8 variable[];
 366 } __packed __aligned(2);
 367
 368 /**
 369  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 370  * @fc: frame control bytes in little-endian byteorder
 371  */
 372 static inline bool ieee80211_has_tods(__le16 fc)
 373 {
 374         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 375 }
 376
 377 /**
 378  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 379  * @fc: frame control bytes in little-endian byteorder
 380  */
 381 static inline bool ieee80211_has_fromds(__le16 fc)
 382 {
 383         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 384 }
 385
 386 /**
 387  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 388  * @fc: frame control bytes in little-endian byteorder
 389  */
 390 static inline bool ieee80211_has_a4(__le16 fc)
 391 {
 392         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 393         return (fc & tmp) == tmp;
 394 }
 395
 396 /**
 397  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 398  * @fc: frame control bytes in little-endian byteorder
 399  */
 400 static inline bool ieee80211_has_morefrags(__le16 fc)
 401 {
 402         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 403 }
 404
 405 /**
 406  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 407  * @fc: frame control bytes in little-endian byteorder
 408  */
 409 static inline bool ieee80211_has_retry(__le16 fc)
 410 {
 411         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 412 }
 413
 414 /**
 415  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 416  * @fc: frame control bytes in little-endian byteorder
 417  */
 418 static inline bool ieee80211_has_pm(__le16 fc)
 419 {
 420         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 421 }
 422
 423 /**
 424  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 425  * @fc: frame control bytes in little-endian byteorder
 426  */
 427 static inline bool ieee80211_has_moredata(__le16 fc)
 428 {
 429         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 430 }
 431
 432 /**
 433  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 434  * @fc: frame control bytes in little-endian byteorder
 435  */
 436 static inline bool ieee80211_has_protected(__le16 fc)
 437 {
 438         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 439 }
 440
 441 /**
 442  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 443  * @fc: frame control bytes in little-endian byteorder
 444  */
 445 static inline bool ieee80211_has_order(__le16 fc)
 446 {
 447         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 448 }
 449
 450 /**
 451  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 452  * @fc: frame control bytes in little-endian byteorder
 453  */
 454 static inline bool ieee80211_is_mgmt(__le16 fc)
 455 {
 456         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 457                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 458 }
 459
 460 /**
 461  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 462  * @fc: frame control bytes in little-endian byteorder
 463  */
 464 static inline bool ieee80211_is_ctl(__le16 fc)
 465 {
 466         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 467                cpu_to_le16(IEEE80211_FTYPE_CTL);
 468 }
 469
 470 /**
 471  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 472  * @fc: frame control bytes in little-endian byteorder
 473  */
 474 static inline bool ieee80211_is_data(__le16 fc)
 475 {
 476         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 477                cpu_to_le16(IEEE80211_FTYPE_DATA);
 478 }
 479
 480 /**
 481  * ieee80211_is_ext - check if type is IEEE80211_FTYPE_EXT
 482  * @fc: frame control bytes in little-endian byteorder
 483  */
 484 static inline bool ieee80211_is_ext(__le16 fc)
 485 {
 486         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 487                cpu_to_le16(IEEE80211_FTYPE_EXT);
 488 }
 489
 490
 491 /**
 492  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 493  * @fc: frame control bytes in little-endian byteorder
 494  */
 495 static inline bool ieee80211_is_data_qos(__le16 fc)
 496 {
 497         /*
 498          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 499          * to check the one bit
 500          */
 501         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 502                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 503 }
 504
 505 /**
 506  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 507  * @fc: frame control bytes in little-endian byteorder
 508  */
 509 static inline bool ieee80211_is_data_present(__le16 fc)
 510 {
 511         /*
 512          * mask with 0x40 and test that that bit is clear to only return true
 513          * for the data-containing substypes.
 514          */
 515         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 516                cpu_to_le16(IEEE80211_FTYPE_DATA);
 517 }
 518
 519 /**
 520  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 521  * @fc: frame control bytes in little-endian byteorder
 522  */
 523 static inline bool ieee80211_is_assoc_req(__le16 fc)
 524 {
 525         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 526                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 527 }
 528
 529 /**
 530  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 531  * @fc: frame control bytes in little-endian byteorder
 532  */
 533 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 534 {
 535         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 536                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 537 }
 538
 539 /**
 540  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 541  * @fc: frame control bytes in little-endian byteorder
 542  */
 543 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 544 {
 545         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 546                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 547 }
 548
 549 /**
 550  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 551  * @fc: frame control bytes in little-endian byteorder
 552  */
 553 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 554 {
 555         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 556                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 557 }
 558
 559 /**
 560  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 561  * @fc: frame control bytes in little-endian byteorder
 562  */
 563 static inline bool ieee80211_is_probe_req(__le16 fc)
 564 {
 565         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 566                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 567 }
 568
 569 /**
 570  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 571  * @fc: frame control bytes in little-endian byteorder
 572  */
 573 static inline bool ieee80211_is_probe_resp(__le16 fc)
 574 {
 575         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 576                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 577 }
 578
 579 /**
 580  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 581  * @fc: frame control bytes in little-endian byteorder
 582  */
 583 static inline bool ieee80211_is_beacon(__le16 fc)
 584 {
 585         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 586                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 587 }
 588
 589 /**
 590  * ieee80211_is_s1g_beacon - check if IEEE80211_FTYPE_EXT &&
 591  * IEEE80211_STYPE_S1G_BEACON
 592  * @fc: frame control bytes in little-endian byteorder
 593  */
 594 static inline bool ieee80211_is_s1g_beacon(__le16 fc)
 595 {
 596         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE |
 597                                  IEEE80211_FCTL_STYPE)) ==
 598                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON);
 599 }
 600
 601 /**
 602  * ieee80211_next_tbtt_present - check if IEEE80211_FTYPE_EXT &&
 603  * IEEE80211_STYPE_S1G_BEACON && IEEE80211_S1G_BCN_NEXT_TBTT
 604  * @fc: frame control bytes in little-endian byteorder
 605  */
 606 static inline bool ieee80211_next_tbtt_present(__le16 fc)
 607 {
 608         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 609                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON) &&
 610                fc & cpu_to_le16(IEEE80211_S1G_BCN_NEXT_TBTT);
 611 }
 612
 613 /**
 614  * ieee80211_is_s1g_short_beacon - check if next tbtt present bit is set. Only
 615  * true for S1G beacons when they're short.
 616  * @fc: frame control bytes in little-endian byteorder
 617  */
 618 static inline bool ieee80211_is_s1g_short_beacon(__le16 fc)
 619 {
 620         return ieee80211_is_s1g_beacon(fc) && ieee80211_next_tbtt_present(fc);
 621 }
 622
 623 /**
 624  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 625  * @fc: frame control bytes in little-endian byteorder
 626  */
 627 static inline bool ieee80211_is_atim(__le16 fc)
 628 {
 629         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 630                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 631 }
 632
 633 /**
 634  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 635  * @fc: frame control bytes in little-endian byteorder
 636  */
 637 static inline bool ieee80211_is_disassoc(__le16 fc)
 638 {
 639         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 640                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 641 }
 642
 643 /**
 644  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 645  * @fc: frame control bytes in little-endian byteorder
 646  */
 647 static inline bool ieee80211_is_auth(__le16 fc)
 648 {
 649         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 650                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 651 }
 652
 653 /**
 654  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 655  * @fc: frame control bytes in little-endian byteorder
 656  */
 657 static inline bool ieee80211_is_deauth(__le16 fc)
 658 {
 659         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 660                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 661 }
 662
 663 /**
 664  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 665  * @fc: frame control bytes in little-endian byteorder
 666  */
 667 static inline bool ieee80211_is_action(__le16 fc)
 668 {
 669         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 670                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 671 }
 672
 673 /**
 674  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 675  * @fc: frame control bytes in little-endian byteorder
 676  */
 677 static inline bool ieee80211_is_back_req(__le16 fc)
 678 {
 679         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 680                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 681 }
 682
 683 /**
 684  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 685  * @fc: frame control bytes in little-endian byteorder
 686  */
 687 static inline bool ieee80211_is_back(__le16 fc)
 688 {
 689         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 690                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 691 }
 692
 693 /**
 694  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 695  * @fc: frame control bytes in little-endian byteorder
 696  */
 697 static inline bool ieee80211_is_pspoll(__le16 fc)
 698 {
 699         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 700                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 701 }
 702
 703 /**
 704  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 705  * @fc: frame control bytes in little-endian byteorder
 706  */
 707 static inline bool ieee80211_is_rts(__le16 fc)
 708 {
 709         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 710                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 711 }
 712
 713 /**
 714  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 715  * @fc: frame control bytes in little-endian byteorder
 716  */
 717 static inline bool ieee80211_is_cts(__le16 fc)
 718 {
 719         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 720                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 721 }
 722
 723 /**
 724  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 725  * @fc: frame control bytes in little-endian byteorder
 726  */
 727 static inline bool ieee80211_is_ack(__le16 fc)
 728 {
 729         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 730                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 731 }
 732
 733 /**
 734  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 735  * @fc: frame control bytes in little-endian byteorder
 736  */
 737 static inline bool ieee80211_is_cfend(__le16 fc)
 738 {
 739         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 740                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 741 }
 742
 743 /**
 744  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 745  * @fc: frame control bytes in little-endian byteorder
 746  */
 747 static inline bool ieee80211_is_cfendack(__le16 fc)
 748 {
 749         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 750                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 751 }
 752
 753 /**
 754  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 755  * @fc: frame control bytes in little-endian byteorder
 756  */
 757 static inline bool ieee80211_is_nullfunc(__le16 fc)
 758 {
 759         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 760                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 761 }
 762
 763 /**
 764  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 765  * @fc: frame control bytes in little-endian byteorder
 766  */
 767 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 768 {
 769         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 770                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 771 }
 772
 773 /**
 774  * ieee80211_is_trigger - check if frame is trigger frame
 775  * @fc: frame control field in little-endian byteorder
 776  */
 777 static inline bool ieee80211_is_trigger(__le16 fc)
 778 {
 779         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 780                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_TRIGGER);
 781 }
 782
 783 /**
 784  * ieee80211_is_any_nullfunc - check if frame is regular or QoS nullfunc frame
 785  * @fc: frame control bytes in little-endian byteorder
 786  */
 787 static inline bool ieee80211_is_any_nullfunc(__le16 fc)
 788 {
 789         return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
 790 }
 791
 792 /**
 793  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 794  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 795  */
 796 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 797 {
 798         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 799 }
 800
 801 /**
 802  * ieee80211_is_frag - check if a frame is a fragment
 803  * @hdr: 802.11 header of the frame
 804  */
 805 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 806 {
 807         return ieee80211_has_morefrags(hdr->frame_control) ||
 808                hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 809 }
 810
 811 struct ieee80211s_hdr {
 812         u8 flags;
 813         u8 ttl;
 814         __le32 seqnum;
 815         u8 eaddr1[ETH_ALEN];
 816         u8 eaddr2[ETH_ALEN];
 817 } __packed __aligned(2);
 818
 819 /* Mesh flags */
 820 #define MESH_FLAGS_AE_A4        0x1
 821 #define MESH_FLAGS_AE_A5_A6     0x2
 822 #define MESH_FLAGS_AE           0x3
 823 #define MESH_FLAGS_PS_DEEP      0x4
 824
 825 /**
 826  * enum ieee80211_preq_flags - mesh PREQ element flags
 827  *
 828  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 829  */
 830 enum ieee80211_preq_flags {
 831         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 832 };
 833
 834 /**
 835  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 836  *
 837  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 838  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 839  */
 840 enum ieee80211_preq_target_flags {
 841         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 842         IEEE80211_PREQ_USN_FLAG = 1<<2,
 843 };
 844
 845 /**
 846  * struct ieee80211_quiet_ie - Quiet element
 847  * @count: Quiet Count
 848  * @period: Quiet Period
 849  * @duration: Quiet Duration
 850  * @offset: Quiet Offset
 851  *
 852  * This structure represents the payload of the "Quiet element" as
 853  * described in IEEE Std 802.11-2020 section 9.4.2.22.
 854  */
 855 struct ieee80211_quiet_ie {
 856         u8 count;
 857         u8 period;
 858         __le16 duration;
 859         __le16 offset;
 860 } __packed;
 861
 862 /**
 863  * struct ieee80211_msrment_ie - Measurement element
 864  * @token: Measurement Token
 865  * @mode: Measurement Report Mode
 866  * @type: Measurement Type
 867  * @request: Measurement Request or Measurement Report
 868  *
 869  * This structure represents the payload of both the "Measurement
 870  * Request element" and the "Measurement Report element" as described
 871  * in IEEE Std 802.11-2020 sections 9.4.2.20 and 9.4.2.21.
 872  */
 873 struct ieee80211_msrment_ie {
 874         u8 token;
 875         u8 mode;
 876         u8 type;
 877         u8 request[];
 878 } __packed;
 879
 880 /**
 881  * struct ieee80211_channel_sw_ie - Channel Switch Announcement element
 882  * @mode: Channel Switch Mode
 883  * @new_ch_num: New Channel Number
 884  * @count: Channel Switch Count
 885  *
 886  * This structure represents the payload of the "Channel Switch
 887  * Announcement element" as described in IEEE Std 802.11-2020 section
 888  * 9.4.2.18.
 889  */
 890 struct ieee80211_channel_sw_ie {
 891         u8 mode;
 892         u8 new_ch_num;
 893         u8 count;
 894 } __packed;
 895
 896 /**
 897  * struct ieee80211_ext_chansw_ie - Extended Channel Switch Announcement element
 898  * @mode: Channel Switch Mode
 899  * @new_operating_class: New Operating Class
 900  * @new_ch_num: New Channel Number
 901  * @count: Channel Switch Count
 902  *
 903  * This structure represents the "Extended Channel Switch Announcement
 904  * element" as described in IEEE Std 802.11-2020 section 9.4.2.52.
 905  */
 906 struct ieee80211_ext_chansw_ie {
 907         u8 mode;
 908         u8 new_operating_class;
 909         u8 new_ch_num;
 910         u8 count;
 911 } __packed;
 912
 913 /**
 914  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 915  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 916  *      values here
 917  * This structure represents the "Secondary Channel Offset element"
 918  */
 919 struct ieee80211_sec_chan_offs_ie {
 920         u8 sec_chan_offs;
 921 } __packed;
 922
 923 /**
 924  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 925  * @mesh_ttl: Time To Live
 926  * @mesh_flags: Flags
 927  * @mesh_reason: Reason Code
 928  * @mesh_pre_value: Precedence Value
 929  *
 930  * This structure represents the payload of the "Mesh Channel Switch
 931  * Parameters element" as described in IEEE Std 802.11-2020 section
 932  * 9.4.2.102.
 933  */
 934 struct ieee80211_mesh_chansw_params_ie {
 935         u8 mesh_ttl;
 936         u8 mesh_flags;
 937         __le16 mesh_reason;
 938         __le16 mesh_pre_value;
 939 } __packed;
 940
 941 /**
 942  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 943  * @new_channel_width: New Channel Width
 944  * @new_center_freq_seg0: New Channel Center Frequency Segment 0
 945  * @new_center_freq_seg1: New Channel Center Frequency Segment 1
 946  *
 947  * This structure represents the payload of the "Wide Bandwidth
 948  * Channel Switch element" as described in IEEE Std 802.11-2020
 949  * section 9.4.2.160.
 950  */
 951 struct ieee80211_wide_bw_chansw_ie {
 952         u8 new_channel_width;
 953         u8 new_center_freq_seg0, new_center_freq_seg1;
 954 } __packed;
 955
 956 /**
 957  * struct ieee80211_tim_ie - Traffic Indication Map information element
 958  * @dtim_count: DTIM Count
 959  * @dtim_period: DTIM Period
 960  * @bitmap_ctrl: Bitmap Control
 961  * @required_octet: "Syntatic sugar" to force the struct size to the
 962  *                  minimum valid size when carried in a non-S1G PPDU
 963  * @virtual_map: Partial Virtual Bitmap
 964  *
 965  * This structure represents the payload of the "TIM element" as
 966  * described in IEEE Std 802.11-2020 section 9.4.2.5. Note that this
 967  * definition is only applicable when the element is carried in a
 968  * non-S1G PPDU. When the TIM is carried in an S1G PPDU, the Bitmap
 969  * Control and Partial Virtual Bitmap may not be present.
 970  */
 971 struct ieee80211_tim_ie {
 972         u8 dtim_count;
 973         u8 dtim_period;
 974         u8 bitmap_ctrl;
 975         union {
 976                 u8 required_octet;
 977                 DECLARE_FLEX_ARRAY(u8, virtual_map);
 978         };
 979 } __packed;
 980
 981 /**
 982  * struct ieee80211_meshconf_ie - Mesh Configuration element
 983  * @meshconf_psel: Active Path Selection Protocol Identifier
 984  * @meshconf_pmetric: Active Path Selection Metric Identifier
 985  * @meshconf_congest: Congestion Control Mode Identifier
 986  * @meshconf_synch: Synchronization Method Identifier
 987  * @meshconf_auth: Authentication Protocol Identifier
 988  * @meshconf_form: Mesh Formation Info
 989  * @meshconf_cap: Mesh Capability (see &enum mesh_config_capab_flags)
 990  *
 991  * This structure represents the payload of the "Mesh Configuration
 992  * element" as described in IEEE Std 802.11-2020 section 9.4.2.97.
 993  */
 994 struct ieee80211_meshconf_ie {
 995         u8 meshconf_psel;
 996         u8 meshconf_pmetric;
 997         u8 meshconf_congest;
 998         u8 meshconf_synch;
 999         u8 meshconf_auth;
1000         u8 meshconf_form;
1001         u8 meshconf_cap;
1002 } __packed;
1003
1004 /**
1005  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
1006  *
1007  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
1008  *      additional mesh peerings with other mesh STAs
1009  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
1010  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
1011  *      is ongoing
1012  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
1013  *      neighbors in deep sleep mode
1014  *
1015  * Enumerates the "Mesh Capability" as described in IEEE Std
1016  * 802.11-2020 section 9.4.2.97.7.
1017  */
1018 enum mesh_config_capab_flags {
1019         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
1020         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
1021         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
1022         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
1023 };
1024
1025 #define IEEE80211_MESHCONF_FORM_CONNECTED_TO_GATE 0x1
1026
1027 /*
1028  * mesh channel switch parameters element's flag indicator
1029  *
1030  */
1031 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
1032 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
1033 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
1034
1035 /**
1036  * struct ieee80211_rann_ie - RANN (root announcement) element
1037  * @rann_flags: Flags
1038  * @rann_hopcount: Hop Count
1039  * @rann_ttl: Element TTL
1040  * @rann_addr: Root Mesh STA Address
1041  * @rann_seq: HWMP Sequence Number
1042  * @rann_interval: Interval
1043  * @rann_metric: Metric
1044  *
1045  * This structure represents the payload of the "RANN element" as
1046  * described in IEEE Std 802.11-2020 section 9.4.2.111.
1047  */
1048 struct ieee80211_rann_ie {
1049         u8 rann_flags;
1050         u8 rann_hopcount;
1051         u8 rann_ttl;
1052         u8 rann_addr[ETH_ALEN];
1053         __le32 rann_seq;
1054         __le32 rann_interval;
1055         __le32 rann_metric;
1056 } __packed;
1057
1058 enum ieee80211_rann_flags {
1059         RANN_FLAG_IS_GATE = 1 << 0,
1060 };
1061
1062 enum ieee80211_ht_chanwidth_values {
1063         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
1064         IEEE80211_HT_CHANWIDTH_ANY = 1,
1065 };
1066
1067 /**
1068  * enum ieee80211_vht_opmode_bits - VHT operating mode field bits
1069  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
1070  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
1071  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
1072  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
1073  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
1074  * @IEEE80211_OPMODE_NOTIF_BW_160_80P80: 160 / 80+80 MHz indicator flag
1075  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
1076  *      (the NSS value is the value of this field + 1)
1077  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
1078  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
1079  *      using a beamforming steering matrix
1080  */
1081 enum ieee80211_vht_opmode_bits {
1082         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 0x03,
1083         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
1084         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
1085         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
1086         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
1087         IEEE80211_OPMODE_NOTIF_BW_160_80P80     = 0x04,
1088         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
1089         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
1090         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
1091 };
1092
1093 /**
1094  * enum ieee80211_s1g_chanwidth
1095  * These are defined in IEEE802.11-2016ah Table 10-20
1096  * as BSS Channel Width
1097  *
1098  * @IEEE80211_S1G_CHANWIDTH_1MHZ: 1MHz operating channel
1099  * @IEEE80211_S1G_CHANWIDTH_2MHZ: 2MHz operating channel
1100  * @IEEE80211_S1G_CHANWIDTH_4MHZ: 4MHz operating channel
1101  * @IEEE80211_S1G_CHANWIDTH_8MHZ: 8MHz operating channel
1102  * @IEEE80211_S1G_CHANWIDTH_16MHZ: 16MHz operating channel
1103  */
1104 enum ieee80211_s1g_chanwidth {
1105         IEEE80211_S1G_CHANWIDTH_1MHZ = 0,
1106         IEEE80211_S1G_CHANWIDTH_2MHZ = 1,
1107         IEEE80211_S1G_CHANWIDTH_4MHZ = 3,
1108         IEEE80211_S1G_CHANWIDTH_8MHZ = 7,
1109         IEEE80211_S1G_CHANWIDTH_16MHZ = 15,
1110 };
1111
1112 #define WLAN_SA_QUERY_TR_ID_LEN 2
1113 #define WLAN_MEMBERSHIP_LEN 8
1114 #define WLAN_USER_POSITION_LEN 16
1115
1116 /**
1117  * struct ieee80211_tpc_report_ie - TPC Report element
1118  * @tx_power: Transmit Power
1119  * @link_margin: Link Margin
1120  *
1121  * This structure represents the payload of the "TPC Report element" as
1122  * described in IEEE Std 802.11-2020 section 9.4.2.16.
1123  */
1124 struct ieee80211_tpc_report_ie {
1125         u8 tx_power;
1126         u8 link_margin;
1127 } __packed;
1128
1129 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK     GENMASK(2, 1)
1130 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_SHIFT    1
1131 #define IEEE80211_ADDBA_EXT_NO_FRAG             BIT(0)
1132 #define IEEE80211_ADDBA_EXT_BUF_SIZE_MASK       GENMASK(7, 5)
1133 #define IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT      10
1134
1135 struct ieee80211_addba_ext_ie {
1136         u8 data;
1137 } __packed;
1138
1139 /**
1140  * struct ieee80211_s1g_bcn_compat_ie - S1G Beacon Compatibility element
1141  * @compat_info: Compatibility Information
1142  * @beacon_int: Beacon Interval
1143  * @tsf_completion: TSF Completion
1144  *
1145  * This structure represents the payload of the "S1G Beacon
1146  * Compatibility element" as described in IEEE Std 802.11-2020 section
1147  * 9.4.2.196.
1148  */
1149 struct ieee80211_s1g_bcn_compat_ie {
1150         __le16 compat_info;
1151         __le16 beacon_int;
1152         __le32 tsf_completion;
1153 } __packed;
1154
1155 /**
1156  * struct ieee80211_s1g_oper_ie - S1G Operation element
1157  * @ch_width: S1G Operation Information Channel Width
1158  * @oper_class: S1G Operation Information Operating Class
1159  * @primary_ch: S1G Operation Information Primary Channel Number
1160  * @oper_ch: S1G Operation Information  Channel Center Frequency
1161  * @basic_mcs_nss: Basic S1G-MCS and NSS Set
1162  *
1163  * This structure represents the payload of the "S1G Operation
1164  * element" as described in IEEE Std 802.11-2020 section 9.4.2.212.
1165  */
1166 struct ieee80211_s1g_oper_ie {
1167         u8 ch_width;
1168         u8 oper_class;
1169         u8 primary_ch;
1170         u8 oper_ch;
1171         __le16 basic_mcs_nss;
1172 } __packed;
1173
1174 /**
1175  * struct ieee80211_aid_response_ie - AID Response element
1176  * @aid: AID/Group AID
1177  * @switch_count: AID Switch Count
1178  * @response_int: AID Response Interval
1179  *
1180  * This structure represents the payload of the "AID Response element"
1181  * as described in IEEE Std 802.11-2020 section 9.4.2.194.
1182  */
1183 struct ieee80211_aid_response_ie {
1184         __le16 aid;
1185         u8 switch_count;
1186         __le16 response_int;
1187 } __packed;
1188
1189 struct ieee80211_s1g_cap {
1190         u8 capab_info[10];
1191         u8 supp_mcs_nss[5];
1192 } __packed;
1193
1194 struct ieee80211_ext {
1195         __le16 frame_control;
1196         __le16 duration;
1197         union {
1198                 struct {
1199                         u8 sa[ETH_ALEN];
1200                         __le32 timestamp;
1201                         u8 change_seq;
1202                         u8 variable[0];
1203                 } __packed s1g_beacon;
1204                 struct {
1205                         u8 sa[ETH_ALEN];
1206                         __le32 timestamp;
1207                         u8 change_seq;
1208                         u8 next_tbtt[3];
1209                         u8 variable[0];
1210                 } __packed s1g_short_beacon;
1211         } u;
1212 } __packed __aligned(2);
1213
1214 #define IEEE80211_TWT_CONTROL_NDP                       BIT(0)
1215 #define IEEE80211_TWT_CONTROL_RESP_MODE                 BIT(1)
1216 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST        BIT(3)
1217 #define IEEE80211_TWT_CONTROL_RX_DISABLED               BIT(4)
1218 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT             BIT(5)
1219
1220 #define IEEE80211_TWT_REQTYPE_REQUEST                   BIT(0)
1221 #define IEEE80211_TWT_REQTYPE_SETUP_CMD                 GENMASK(3, 1)
1222 #define IEEE80211_TWT_REQTYPE_TRIGGER                   BIT(4)
1223 #define IEEE80211_TWT_REQTYPE_IMPLICIT                  BIT(5)
1224 #define IEEE80211_TWT_REQTYPE_FLOWTYPE                  BIT(6)
1225 #define IEEE80211_TWT_REQTYPE_FLOWID                    GENMASK(9, 7)
1226 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP              GENMASK(14, 10)
1227 #define IEEE80211_TWT_REQTYPE_PROTECTION                BIT(15)
1228
1229 enum ieee80211_twt_setup_cmd {
1230         TWT_SETUP_CMD_REQUEST,
1231         TWT_SETUP_CMD_SUGGEST,
1232         TWT_SETUP_CMD_DEMAND,
1233         TWT_SETUP_CMD_GROUPING,
1234         TWT_SETUP_CMD_ACCEPT,
1235         TWT_SETUP_CMD_ALTERNATE,
1236         TWT_SETUP_CMD_DICTATE,
1237         TWT_SETUP_CMD_REJECT,
1238 };
1239
1240 struct ieee80211_twt_params {
1241         __le16 req_type;
1242         __le64 twt;
1243         u8 min_twt_dur;
1244         __le16 mantissa;
1245         u8 channel;
1246 } __packed;
1247
1248 struct ieee80211_twt_setup {
1249         u8 dialog_token;
1250         u8 element_id;
1251         u8 length;
1252         u8 control;
1253         u8 params[];
1254 } __packed;
1255
1256 #define IEEE80211_TTLM_MAX_CNT                          2
1257 #define IEEE80211_TTLM_CONTROL_DIRECTION                0x03
1258 #define IEEE80211_TTLM_CONTROL_DEF_LINK_MAP             0x04
1259 #define IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT      0x08
1260 #define IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT     0x10
1261 #define IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE            0x20
1262
1263 #define IEEE80211_TTLM_DIRECTION_DOWN           0
1264 #define IEEE80211_TTLM_DIRECTION_UP             1
1265 #define IEEE80211_TTLM_DIRECTION_BOTH           2
1266
1267 /**
1268  * struct ieee80211_ttlm_elem - TID-To-Link Mapping element
1269  *
1270  * Defined in section 9.4.2.314 in P802.11be_D4
1271  *
1272  * @control: the first part of control field
1273  * @optional: the second part of control field
1274  */
1275 struct ieee80211_ttlm_elem {
1276         u8 control;
1277         u8 optional[];
1278 } __packed;
1279
1280 struct ieee80211_mgmt {
1281         __le16 frame_control;
1282         __le16 duration;
1283         u8 da[ETH_ALEN];
1284         u8 sa[ETH_ALEN];
1285         u8 bssid[ETH_ALEN];
1286         __le16 seq_ctrl;
1287         union {
1288                 struct {
1289                         __le16 auth_alg;
1290                         __le16 auth_transaction;
1291                         __le16 status_code;
1292                         /* possibly followed by Challenge text */
1293                         u8 variable[];
1294                 } __packed auth;
1295                 struct {
1296                         __le16 reason_code;
1297                 } __packed deauth;
1298                 struct {
1299                         __le16 capab_info;
1300                         __le16 listen_interval;
1301                         /* followed by SSID and Supported rates */
1302                         u8 variable[];
1303                 } __packed assoc_req;
1304                 struct {
1305                         __le16 capab_info;
1306                         __le16 status_code;
1307                         __le16 aid;
1308                         /* followed by Supported rates */
1309                         u8 variable[];
1310                 } __packed assoc_resp, reassoc_resp;
1311                 struct {
1312                         __le16 capab_info;
1313                         __le16 status_code;
1314                         u8 variable[];
1315                 } __packed s1g_assoc_resp, s1g_reassoc_resp;
1316                 struct {
1317                         __le16 capab_info;
1318                         __le16 listen_interval;
1319                         u8 current_ap[ETH_ALEN];
1320                         /* followed by SSID and Supported rates */
1321                         u8 variable[];
1322                 } __packed reassoc_req;
1323                 struct {
1324                         __le16 reason_code;
1325                 } __packed disassoc;
1326                 struct {
1327                         __le64 timestamp;
1328                         __le16 beacon_int;
1329                         __le16 capab_info;
1330                         /* followed by some of SSID, Supported rates,
1331                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
1332                         u8 variable[];
1333                 } __packed beacon;
1334                 struct {
1335                         /* only variable items: SSID, Supported rates */
1336                         DECLARE_FLEX_ARRAY(u8, variable);
1337                 } __packed probe_req;
1338                 struct {
1339                         __le64 timestamp;
1340                         __le16 beacon_int;
1341                         __le16 capab_info;
1342                         /* followed by some of SSID, Supported rates,
1343                          * FH Params, DS Params, CF Params, IBSS Params */
1344                         u8 variable[];
1345                 } __packed probe_resp;
1346                 struct {
1347                         u8 category;
1348                         union {
1349                                 struct {
1350                                         u8 action_code;
1351                                         u8 dialog_token;
1352                                         u8 status_code;
1353                                         u8 variable[];
1354                                 } __packed wme_action;
1355                                 struct{
1356                                         u8 action_code;
1357                                         u8 variable[];
1358                                 } __packed chan_switch;
1359                                 struct{
1360                                         u8 action_code;
1361                                         struct ieee80211_ext_chansw_ie data;
1362                                         u8 variable[];
1363                                 } __packed ext_chan_switch;
1364                                 struct{
1365                                         u8 action_code;
1366                                         u8 dialog_token;
1367                                         u8 element_id;
1368                                         u8 length;
1369                                         struct ieee80211_msrment_ie msr_elem;
1370                                 } __packed measurement;
1371                                 struct{
1372                                         u8 action_code;
1373                                         u8 dialog_token;
1374                                         __le16 capab;
1375                                         __le16 timeout;
1376                                         __le16 start_seq_num;
1377                                         /* followed by BA Extension */
1378                                         u8 variable[];
1379                                 } __packed addba_req;
1380                                 struct{
1381                                         u8 action_code;
1382                                         u8 dialog_token;
1383                                         __le16 status;
1384                                         __le16 capab;
1385                                         __le16 timeout;
1386                                 } __packed addba_resp;
1387                                 struct{
1388                                         u8 action_code;
1389                                         __le16 params;
1390                                         __le16 reason_code;
1391                                 } __packed delba;
1392                                 struct {
1393                                         u8 action_code;
1394                                         u8 variable[];
1395                                 } __packed self_prot;
1396                                 struct{
1397                                         u8 action_code;
1398                                         u8 variable[];
1399                                 } __packed mesh_action;
1400                                 struct {
1401                                         u8 action;
1402                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1403                                 } __packed sa_query;
1404                                 struct {
1405                                         u8 action;
1406                                         u8 smps_control;
1407                                 } __packed ht_smps;
1408                                 struct {
1409                                         u8 action_code;
1410                                         u8 chanwidth;
1411                                 } __packed ht_notify_cw;
1412                                 struct {
1413                                         u8 action_code;
1414                                         u8 dialog_token;
1415                                         __le16 capability;
1416                                         u8 variable[0];
1417                                 } __packed tdls_discover_resp;
1418                                 struct {
1419                                         u8 action_code;
1420                                         u8 operating_mode;
1421                                 } __packed vht_opmode_notif;
1422                                 struct {
1423                                         u8 action_code;
1424                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1425                                         u8 position[WLAN_USER_POSITION_LEN];
1426                                 } __packed vht_group_notif;
1427                                 struct {
1428                                         u8 action_code;
1429                                         u8 dialog_token;
1430                                         u8 tpc_elem_id;
1431                                         u8 tpc_elem_length;
1432                                         struct ieee80211_tpc_report_ie tpc;
1433                                 } __packed tpc_report;
1434                                 struct {
1435                                         u8 action_code;
1436                                         u8 dialog_token;
1437                                         u8 follow_up;
1438                                         u8 tod[6];
1439                                         u8 toa[6];
1440                                         __le16 tod_error;
1441                                         __le16 toa_error;
1442                                         u8 variable[];
1443                                 } __packed ftm;
1444                                 struct {
1445                                         u8 action_code;
1446                                         u8 variable[];
1447                                 } __packed s1g;
1448                                 struct {
1449                                         u8 action_code;
1450                                         u8 dialog_token;
1451                                         u8 follow_up;
1452                                         u32 tod;
1453                                         u32 toa;
1454                                         u8 max_tod_error;
1455                                         u8 max_toa_error;
1456                                 } __packed wnm_timing_msr;
1457                         } u;
1458                 } __packed action;
1459                 DECLARE_FLEX_ARRAY(u8, body); /* Generic frame body */
1460         } u;
1461 } __packed __aligned(2);
1462
1463 /* Supported rates membership selectors */
1464 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1465 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1466 #define BSS_MEMBERSHIP_SELECTOR_GLK     125
1467 #define BSS_MEMBERSHIP_SELECTOR_EPS     124
1468 #define BSS_MEMBERSHIP_SELECTOR_SAE_H2E 123
1469 #define BSS_MEMBERSHIP_SELECTOR_HE_PHY  122
1470 #define BSS_MEMBERSHIP_SELECTOR_EHT_PHY 121
1471
1472 /* mgmt header + 1 byte category code */
1473 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1474
1475
1476 /* Management MIC information element (IEEE 802.11w) */
1477 struct ieee80211_mmie {
1478         u8 element_id;
1479         u8 length;
1480         __le16 key_id;
1481         u8 sequence_number[6];
1482         u8 mic[8];
1483 } __packed;
1484
1485 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1486 struct ieee80211_mmie_16 {
1487         u8 element_id;
1488         u8 length;
1489         __le16 key_id;
1490         u8 sequence_number[6];
1491         u8 mic[16];
1492 } __packed;
1493
1494 struct ieee80211_vendor_ie {
1495         u8 element_id;
1496         u8 len;
1497         u8 oui[3];
1498         u8 oui_type;
1499 } __packed;
1500
1501 struct ieee80211_wmm_ac_param {
1502         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1503         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1504         __le16 txop_limit;
1505 } __packed;
1506
1507 struct ieee80211_wmm_param_ie {
1508         u8 element_id; /* Element ID: 221 (0xdd); */
1509         u8 len; /* Length: 24 */
1510         /* required fields for WMM version 1 */
1511         u8 oui[3]; /* 00:50:f2 */
1512         u8 oui_type; /* 2 */
1513         u8 oui_subtype; /* 1 */
1514         u8 version; /* 1 for WMM version 1.0 */
1515         u8 qos_info; /* AP/STA specific QoS info */
1516         u8 reserved; /* 0 */
1517         /* AC_BE, AC_BK, AC_VI, AC_VO */
1518         struct ieee80211_wmm_ac_param ac[4];
1519 } __packed;
1520
1521 /* Control frames */
1522 struct ieee80211_rts {
1523         __le16 frame_control;
1524         __le16 duration;
1525         u8 ra[ETH_ALEN];
1526         u8 ta[ETH_ALEN];
1527 } __packed __aligned(2);
1528
1529 struct ieee80211_cts {
1530         __le16 frame_control;
1531         __le16 duration;
1532         u8 ra[ETH_ALEN];
1533 } __packed __aligned(2);
1534
1535 struct ieee80211_pspoll {
1536         __le16 frame_control;
1537         __le16 aid;
1538         u8 bssid[ETH_ALEN];
1539         u8 ta[ETH_ALEN];
1540 } __packed __aligned(2);
1541
1542 /* TDLS */
1543
1544 /* Channel switch timing */
1545 struct ieee80211_ch_switch_timing {
1546         __le16 switch_time;
1547         __le16 switch_timeout;
1548 } __packed;
1549
1550 /* Link-id information element */
1551 struct ieee80211_tdls_lnkie {
1552         u8 ie_type; /* Link Identifier IE */
1553         u8 ie_len;
1554         u8 bssid[ETH_ALEN];
1555         u8 init_sta[ETH_ALEN];
1556         u8 resp_sta[ETH_ALEN];
1557 } __packed;
1558
1559 struct ieee80211_tdls_data {
1560         u8 da[ETH_ALEN];
1561         u8 sa[ETH_ALEN];
1562         __be16 ether_type;
1563         u8 payload_type;
1564         u8 category;
1565         u8 action_code;
1566         union {
1567                 struct {
1568                         u8 dialog_token;
1569                         __le16 capability;
1570                         u8 variable[0];
1571                 } __packed setup_req;
1572                 struct {
1573                         __le16 status_code;
1574                         u8 dialog_token;
1575                         __le16 capability;
1576                         u8 variable[0];
1577                 } __packed setup_resp;
1578                 struct {
1579                         __le16 status_code;
1580                         u8 dialog_token;
1581                         u8 variable[0];
1582                 } __packed setup_cfm;
1583                 struct {
1584                         __le16 reason_code;
1585                         u8 variable[0];
1586                 } __packed teardown;
1587                 struct {
1588                         u8 dialog_token;
1589                         u8 variable[0];
1590                 } __packed discover_req;
1591                 struct {
1592                         u8 target_channel;
1593                         u8 oper_class;
1594                         u8 variable[0];
1595                 } __packed chan_switch_req;
1596                 struct {
1597                         __le16 status_code;
1598                         u8 variable[0];
1599                 } __packed chan_switch_resp;
1600         } u;
1601 } __packed;
1602
1603 /*
1604  * Peer-to-Peer IE attribute related definitions.
1605  */
1606 /*
1607  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1608  */
1609 enum ieee80211_p2p_attr_id {
1610         IEEE80211_P2P_ATTR_STATUS = 0,
1611         IEEE80211_P2P_ATTR_MINOR_REASON,
1612         IEEE80211_P2P_ATTR_CAPABILITY,
1613         IEEE80211_P2P_ATTR_DEVICE_ID,
1614         IEEE80211_P2P_ATTR_GO_INTENT,
1615         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1616         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1617         IEEE80211_P2P_ATTR_GROUP_BSSID,
1618         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1619         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1620         IEEE80211_P2P_ATTR_MANAGABILITY,
1621         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1622         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1623         IEEE80211_P2P_ATTR_DEVICE_INFO,
1624         IEEE80211_P2P_ATTR_GROUP_INFO,
1625         IEEE80211_P2P_ATTR_GROUP_ID,
1626         IEEE80211_P2P_ATTR_INTERFACE,
1627         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1628         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1629         /* 19 - 220: Reserved */
1630         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1631
1632         IEEE80211_P2P_ATTR_MAX
1633 };
1634
1635 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1636 /* Typical max value used here */
1637 #define IEEE80211_P2P_NOA_DESC_MAX      4
1638
1639 struct ieee80211_p2p_noa_desc {
1640         u8 count;
1641         __le32 duration;
1642         __le32 interval;
1643         __le32 start_time;
1644 } __packed;
1645
1646 struct ieee80211_p2p_noa_attr {
1647         u8 index;
1648         u8 oppps_ctwindow;
1649         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1650 } __packed;
1651
1652 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1653 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1654
1655 /**
1656  * struct ieee80211_bar - Block Ack Request frame format
1657  * @frame_control: Frame Control
1658  * @duration: Duration
1659  * @ra: RA
1660  * @ta: TA
1661  * @control: BAR Control
1662  * @start_seq_num: Starting Sequence Number (see Figure 9-37)
1663  *
1664  * This structure represents the "BlockAckReq frame format"
1665  * as described in IEEE Std 802.11-2020 section 9.3.1.7.
1666 */
1667 struct ieee80211_bar {
1668         __le16 frame_control;
1669         __le16 duration;
1670         __u8 ra[ETH_ALEN];
1671         __u8 ta[ETH_ALEN];
1672         __le16 control;
1673         __le16 start_seq_num;
1674 } __packed;
1675
1676 /* 802.11 BAR control masks */
1677 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1678 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1679 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1680 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1681 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1682
1683 #define IEEE80211_HT_MCS_MASK_LEN               10
1684
1685 /**
1686  * struct ieee80211_mcs_info - Supported MCS Set field
1687  * @rx_mask: RX mask
1688  * @rx_highest: highest supported RX rate. If set represents
1689  *      the highest supported RX data rate in units of 1 Mbps.
1690  *      If this field is 0 this value should not be used to
1691  *      consider the highest RX data rate supported.
1692  * @tx_params: TX parameters
1693  * @reserved: Reserved bits
1694  *
1695  * This structure represents the "Supported MCS Set field" as
1696  * described in IEEE Std 802.11-2020 section 9.4.2.55.4.
1697  */
1698 struct ieee80211_mcs_info {
1699         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1700         __le16 rx_highest;
1701         u8 tx_params;
1702         u8 reserved[3];
1703 } __packed;
1704
1705 /* 802.11n HT capability MSC set */
1706 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1707 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1708 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1709 /* value 0 == 1 stream etc */
1710 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1711 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1712 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1713 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1714
1715 #define IEEE80211_HT_MCS_CHAINS(mcs) ((mcs) == 32 ? 1 : (1 + ((mcs) >> 3)))
1716
1717 /*
1718  * 802.11n D5.0 20.3.5 / 20.6 says:
1719  * - indices 0 to 7 and 32 are single spatial stream
1720  * - 8 to 31 are multiple spatial streams using equal modulation
1721  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1722  * - remainder are multiple spatial streams using unequal modulation
1723  */
1724 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1725 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1726         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1727
1728 /**
1729  * struct ieee80211_ht_cap - HT capabilities element
1730  * @cap_info: HT Capability Information
1731  * @ampdu_params_info: A-MPDU Parameters
1732  * @mcs: Supported MCS Set
1733  * @extended_ht_cap_info: HT Extended Capabilities
1734  * @tx_BF_cap_info: Transmit Beamforming Capabilities
1735  * @antenna_selection_info: ASEL Capability
1736  *
1737  * This structure represents the payload of the "HT Capabilities
1738  * element" as described in IEEE Std 802.11-2020 section 9.4.2.55.
1739  */
1740 struct ieee80211_ht_cap {
1741         __le16 cap_info;
1742         u8 ampdu_params_info;
1743
1744         /* 16 bytes MCS information */
1745         struct ieee80211_mcs_info mcs;
1746
1747         __le16 extended_ht_cap_info;
1748         __le32 tx_BF_cap_info;
1749         u8 antenna_selection_info;
1750 } __packed;
1751
1752 /* 802.11n HT capabilities masks (for cap_info) */
1753 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1754 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1755 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1756 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1757 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1758 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1759 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1760 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1761 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1762 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1763 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1764 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1765 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1766 #define IEEE80211_HT_CAP_RESERVED               0x2000
1767 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1768 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1769
1770 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1771 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1772 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1773 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1774 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1775 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1776 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1777 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1778
1779 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1780 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1781 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1782 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1783
1784 /*
1785  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1786  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1787  */
1788 enum ieee80211_max_ampdu_length_exp {
1789         IEEE80211_HT_MAX_AMPDU_8K = 0,
1790         IEEE80211_HT_MAX_AMPDU_16K = 1,
1791         IEEE80211_HT_MAX_AMPDU_32K = 2,
1792         IEEE80211_HT_MAX_AMPDU_64K = 3
1793 };
1794
1795 /*
1796  * Maximum length of AMPDU that the STA can receive in VHT.
1797  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1798  */
1799 enum ieee80211_vht_max_ampdu_length_exp {
1800         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1801         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1802         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1803         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1804         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1805         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1806         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1807         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1808 };
1809
1810 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1811
1812 /* Minimum MPDU start spacing */
1813 enum ieee80211_min_mpdu_spacing {
1814         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1815         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1816         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1817         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1818         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1819         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1820         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1821         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1822 };
1823
1824 /**
1825  * struct ieee80211_ht_operation - HT operation IE
1826  * @primary_chan: Primary Channel
1827  * @ht_param: HT Operation Information parameters
1828  * @operation_mode: HT Operation Information operation mode
1829  * @stbc_param: HT Operation Information STBC params
1830  * @basic_set: Basic HT-MCS Set
1831  *
1832  * This structure represents the payload of the "HT Operation
1833  * element" as described in IEEE Std 802.11-2020 section 9.4.2.56.
1834  */
1835 struct ieee80211_ht_operation {
1836         u8 primary_chan;
1837         u8 ht_param;
1838         __le16 operation_mode;
1839         __le16 stbc_param;
1840         u8 basic_set[16];
1841 } __packed;
1842
1843 /* for ht_param */
1844 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1845 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1846 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1847 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1848 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1849 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1850
1851 /* for operation_mode */
1852 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1853 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1854 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1855 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1856 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1857 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1858 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1859 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT                5
1860 #define IEEE80211_HT_OP_MODE_CCFS2_MASK                 0x1fe0
1861
1862 /* for stbc_param */
1863 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1864 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1865 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1866 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1867 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1868 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1869
1870
1871 /* block-ack parameters */
1872 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1873 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1874 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1875 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1876 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1877 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1878
1879 /*
1880  * A-MPDU buffer sizes
1881  * According to HT size varies from 8 to 64 frames
1882  * HE adds the ability to have up to 256 frames.
1883  * EHT adds the ability to have up to 1K frames.
1884  */
1885 #define IEEE80211_MIN_AMPDU_BUF         0x8
1886 #define IEEE80211_MAX_AMPDU_BUF_HT      0x40
1887 #define IEEE80211_MAX_AMPDU_BUF_HE      0x100
1888 #define IEEE80211_MAX_AMPDU_BUF_EHT     0x400
1889
1890
1891 /* Spatial Multiplexing Power Save Modes (for capability) */
1892 #define WLAN_HT_CAP_SM_PS_STATIC        0
1893 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1894 #define WLAN_HT_CAP_SM_PS_INVALID       2
1895 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1896
1897 /* for SM power control field lower two bits */
1898 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1899 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1900 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1901
1902 /**
1903  * struct ieee80211_vht_mcs_info - VHT MCS information
1904  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1905  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1906  *      STA can receive. Rate expressed in units of 1 Mbps.
1907  *      If this field is 0 this value should not be used to
1908  *      consider the highest RX data rate supported.
1909  *      The top 3 bits of this field indicate the Maximum NSTS,total
1910  *      (a beamformee capability.)
1911  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1912  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1913  *      STA can transmit. Rate expressed in units of 1 Mbps.
1914  *      If this field is 0 this value should not be used to
1915  *      consider the highest TX data rate supported.
1916  *      The top 2 bits of this field are reserved, the
1917  *      3rd bit from the top indiciates VHT Extended NSS BW
1918  *      Capability.
1919  */
1920 struct ieee80211_vht_mcs_info {
1921         __le16 rx_mcs_map;
1922         __le16 rx_highest;
1923         __le16 tx_mcs_map;
1924         __le16 tx_highest;
1925 } __packed;
1926
1927 /* for rx_highest */
1928 #define IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT      13
1929 #define IEEE80211_VHT_MAX_NSTS_TOTAL_MASK       (7 << IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT)
1930
1931 /* for tx_highest */
1932 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE        (1 << 13)
1933
1934 /**
1935  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1936  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1937  *      number of streams
1938  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1939  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1940  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1941  *
1942  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1943  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1944  * both split into 8 subfields by number of streams. These values indicate
1945  * which MCSes are supported for the number of streams the value appears
1946  * for.
1947  */
1948 enum ieee80211_vht_mcs_support {
1949         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1950         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1951         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1952         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1953 };
1954
1955 /**
1956  * struct ieee80211_vht_cap - VHT capabilities
1957  *
1958  * This structure is the "VHT capabilities element" as
1959  * described in 802.11ac D3.0 8.4.2.160
1960  * @vht_cap_info: VHT capability info
1961  * @supp_mcs: VHT MCS supported rates
1962  */
1963 struct ieee80211_vht_cap {
1964         __le32 vht_cap_info;
1965         struct ieee80211_vht_mcs_info supp_mcs;
1966 } __packed;
1967
1968 /**
1969  * enum ieee80211_vht_chanwidth - VHT channel width
1970  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1971  *      determine the channel width (20 or 40 MHz)
1972  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1973  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1974  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1975  */
1976 enum ieee80211_vht_chanwidth {
1977         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1978         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1979         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1980         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1981 };
1982
1983 /**
1984  * struct ieee80211_vht_operation - VHT operation IE
1985  *
1986  * This structure is the "VHT operation element" as
1987  * described in 802.11ac D3.0 8.4.2.161
1988  * @chan_width: Operating channel width
1989  * @center_freq_seg0_idx: center freq segment 0 index
1990  * @center_freq_seg1_idx: center freq segment 1 index
1991  * @basic_mcs_set: VHT Basic MCS rate set
1992  */
1993 struct ieee80211_vht_operation {
1994         u8 chan_width;
1995         u8 center_freq_seg0_idx;
1996         u8 center_freq_seg1_idx;
1997         __le16 basic_mcs_set;
1998 } __packed;
1999
2000 /**
2001  * struct ieee80211_he_cap_elem - HE capabilities element
2002  * @mac_cap_info: HE MAC Capabilities Information
2003  * @phy_cap_info: HE PHY Capabilities Information
2004  *
2005  * This structure represents the fixed fields of the payload of the
2006  * "HE capabilities element" as described in IEEE Std 802.11ax-2021
2007  * sections 9.4.2.248.2 and 9.4.2.248.3.
2008  */
2009 struct ieee80211_he_cap_elem {
2010         u8 mac_cap_info[6];
2011         u8 phy_cap_info[11];
2012 } __packed;
2013
2014 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN    5
2015
2016 /**
2017  * enum ieee80211_he_mcs_support - HE MCS support definitions
2018  * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
2019  *      number of streams
2020  * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
2021  * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
2022  * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
2023  *
2024  * These definitions are used in each 2-bit subfield of the rx_mcs_*
2025  * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
2026  * both split into 8 subfields by number of streams. These values indicate
2027  * which MCSes are supported for the number of streams the value appears
2028  * for.
2029  */
2030 enum ieee80211_he_mcs_support {
2031         IEEE80211_HE_MCS_SUPPORT_0_7    = 0,
2032         IEEE80211_HE_MCS_SUPPORT_0_9    = 1,
2033         IEEE80211_HE_MCS_SUPPORT_0_11   = 2,
2034         IEEE80211_HE_MCS_NOT_SUPPORTED  = 3,
2035 };
2036
2037 /**
2038  * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
2039  *
2040  * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
2041  * described in P802.11ax_D2.0 section 9.4.2.237.4
2042  *
2043  * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2044  *     widths less than 80MHz.
2045  * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2046  *     widths less than 80MHz.
2047  * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2048  *     width 160MHz.
2049  * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2050  *     width 160MHz.
2051  * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
2052  *     channel width 80p80MHz.
2053  * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
2054  *     channel width 80p80MHz.
2055  */
2056 struct ieee80211_he_mcs_nss_supp {
2057         __le16 rx_mcs_80;
2058         __le16 tx_mcs_80;
2059         __le16 rx_mcs_160;
2060         __le16 tx_mcs_160;
2061         __le16 rx_mcs_80p80;
2062         __le16 tx_mcs_80p80;
2063 } __packed;
2064
2065 /**
2066  * struct ieee80211_he_operation - HE Operation element
2067  * @he_oper_params: HE Operation Parameters + BSS Color Information
2068  * @he_mcs_nss_set: Basic HE-MCS And NSS Set
2069  * @optional: Optional fields VHT Operation Information, Max Co-Hosted
2070  *            BSSID Indicator, and 6 GHz Operation Information
2071  *
2072  * This structure represents the payload of the "HE Operation
2073  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.249.
2074  */
2075 struct ieee80211_he_operation {
2076         __le32 he_oper_params;
2077         __le16 he_mcs_nss_set;
2078         u8 optional[];
2079 } __packed;
2080
2081 /**
2082  * struct ieee80211_he_spr - Spatial Reuse Parameter Set element
2083  * @he_sr_control: SR Control
2084  * @optional: Optional fields Non-SRG OBSS PD Max Offset, SRG OBSS PD
2085  *            Min Offset, SRG OBSS PD Max Offset, SRG BSS Color
2086  *            Bitmap, and SRG Partial BSSID Bitmap
2087  *
2088  * This structure represents the payload of the "Spatial Reuse
2089  * Parameter Set element" as described in IEEE Std 802.11ax-2021
2090  * section 9.4.2.252.
2091  */
2092 struct ieee80211_he_spr {
2093         u8 he_sr_control;
2094         u8 optional[];
2095 } __packed;
2096
2097 /**
2098  * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
2099  * @aifsn: ACI/AIFSN
2100  * @ecw_min_max: ECWmin/ECWmax
2101  * @mu_edca_timer: MU EDCA Timer
2102  *
2103  * This structure represents the "MU AC Parameter Record" as described
2104  * in IEEE Std 802.11ax-2021 section 9.4.2.251, Figure 9-788p.
2105  */
2106 struct ieee80211_he_mu_edca_param_ac_rec {
2107         u8 aifsn;
2108         u8 ecw_min_max;
2109         u8 mu_edca_timer;
2110 } __packed;
2111
2112 /**
2113  * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
2114  * @mu_qos_info: QoS Info
2115  * @ac_be: MU AC_BE Parameter Record
2116  * @ac_bk: MU AC_BK Parameter Record
2117  * @ac_vi: MU AC_VI Parameter Record
2118  * @ac_vo: MU AC_VO Parameter Record
2119  *
2120  * This structure represents the payload of the "MU EDCA Parameter Set
2121  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.251.
2122  */
2123 struct ieee80211_mu_edca_param_set {
2124         u8 mu_qos_info;
2125         struct ieee80211_he_mu_edca_param_ac_rec ac_be;
2126         struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
2127         struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
2128         struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
2129 } __packed;
2130
2131 #define IEEE80211_EHT_MCS_NSS_RX 0x0f
2132 #define IEEE80211_EHT_MCS_NSS_TX 0xf0
2133
2134 /**
2135  * struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
2136  * supported NSS for per MCS.
2137  *
2138  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2139  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2140  * for Tx.
2141  *
2142  * @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
2143  *     supported for reception and the maximum number of spatial streams
2144  *     supported for transmission for MCS 0 - 7.
2145  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2146  *     supported for reception and the maximum number of spatial streams
2147  *     supported for transmission for MCS 8 - 9.
2148  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2149  *     supported for reception and the maximum number of spatial streams
2150  *     supported for transmission for MCS 10 - 11.
2151  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
2152  *     supported for reception and the maximum number of spatial streams
2153  *     supported for transmission for MCS 12 - 13.
2154  * @rx_tx_max_nss: array of the previous fields for easier loop access
2155  */
2156 struct ieee80211_eht_mcs_nss_supp_20mhz_only {
2157         union {
2158                 struct {
2159                         u8 rx_tx_mcs7_max_nss;
2160                         u8 rx_tx_mcs9_max_nss;
2161                         u8 rx_tx_mcs11_max_nss;
2162                         u8 rx_tx_mcs13_max_nss;
2163                 };
2164                 u8 rx_tx_max_nss[4];
2165         };
2166 };
2167
2168 /**
2169  * struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
2170  * 20MHz only stations).
2171  *
2172  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2173  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2174  * for Tx.
2175  *
2176  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2177  *     supported for reception and the maximum number of spatial streams
2178  *     supported for transmission for MCS 0 - 9.
2179  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2180  *     supported for reception and the maximum number of spatial streams
2181  *     supported for transmission for MCS 10 - 11.
2182  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
2183  *     supported for reception and the maximum number of spatial streams
2184  *     supported for transmission for MCS 12 - 13.
2185  * @rx_tx_max_nss: array of the previous fields for easier loop access
2186  */
2187 struct ieee80211_eht_mcs_nss_supp_bw {
2188         union {
2189                 struct {
2190                         u8 rx_tx_mcs9_max_nss;
2191                         u8 rx_tx_mcs11_max_nss;
2192                         u8 rx_tx_mcs13_max_nss;
2193                 };
2194                 u8 rx_tx_max_nss[3];
2195         };
2196 };
2197
2198 /**
2199  * struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
2200  *
2201  * This structure is the "EHT Capabilities element" fixed fields as
2202  * described in P802.11be_D2.0 section 9.4.2.313.
2203  *
2204  * @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
2205  * @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
2206  */
2207 struct ieee80211_eht_cap_elem_fixed {
2208         u8 mac_cap_info[2];
2209         u8 phy_cap_info[9];
2210 } __packed;
2211
2212 /**
2213  * struct ieee80211_eht_cap_elem - EHT capabilities element
2214  * @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
2215  * @optional: optional parts
2216  */
2217 struct ieee80211_eht_cap_elem {
2218         struct ieee80211_eht_cap_elem_fixed fixed;
2219
2220         /*
2221          * Followed by:
2222          * Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
2223          * EHT PPE Thresholds field: variable length.
2224          */
2225         u8 optional[];
2226 } __packed;
2227
2228 #define IEEE80211_EHT_OPER_INFO_PRESENT                         0x01
2229 #define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT   0x02
2230 #define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION                  0x04
2231 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT         0x08
2232 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK      0x30
2233
2234 /**
2235  * struct ieee80211_eht_operation - eht operation element
2236  *
2237  * This structure is the "EHT Operation Element" fields as
2238  * described in P802.11be_D2.0 section 9.4.2.311
2239  *
2240  * @params: EHT operation element parameters. See &IEEE80211_EHT_OPER_*
2241  * @basic_mcs_nss: indicates the EHT-MCSs for each number of spatial streams in
2242  *     EHT PPDUs that are supported by all EHT STAs in the BSS in transmit and
2243  *     receive.
2244  * @optional: optional parts
2245  */
2246 struct ieee80211_eht_operation {
2247         u8 params;
2248         struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
2249         u8 optional[];
2250 } __packed;
2251
2252 /**
2253  * struct ieee80211_eht_operation_info - eht operation information
2254  *
2255  * @control: EHT operation information control.
2256  * @ccfs0: defines a channel center frequency for a 20, 40, 80, 160, or 320 MHz
2257  *     EHT BSS.
2258  * @ccfs1: defines a channel center frequency for a 160 or 320 MHz EHT BSS.
2259  * @optional: optional parts
2260  */
2261 struct ieee80211_eht_operation_info {
2262         u8 control;
2263         u8 ccfs0;
2264         u8 ccfs1;
2265         u8 optional[];
2266 } __packed;
2267
2268 /* 802.11ac VHT Capabilities */
2269 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
2270 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
2271 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
2272 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
2273 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
2274 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
2275 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
2276 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_SHIFT                 2
2277 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
2278 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
2279 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
2280 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
2281 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
2282 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
2283 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
2284 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
2285 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
2286 #define IEEE80211_VHT_CAP_RXSTBC_SHIFT                          8
2287 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
2288 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
2289 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
2290 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
2291                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
2292 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
2293 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
2294                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
2295 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
2296 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
2297 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
2298 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
2299 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
2300 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
2301                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
2302 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
2303 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
2304 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
2305 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
2306 #define IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT                      30
2307 #define IEEE80211_VHT_CAP_EXT_NSS_BW_MASK                       0xc0000000
2308
2309 /**
2310  * ieee80211_get_vht_max_nss - return max NSS for a given bandwidth/MCS
2311  * @cap: VHT capabilities of the peer
2312  * @bw: bandwidth to use
2313  * @mcs: MCS index to use
2314  * @ext_nss_bw_capable: indicates whether or not the local transmitter
2315  *      (rate scaling algorithm) can deal with the new logic
2316  *      (dot11VHTExtendedNSSBWCapable)
2317  * @max_vht_nss: current maximum NSS as advertised by the STA in
2318  *      operating mode notification, can be 0 in which case the
2319  *      capability data will be used to derive this (from MCS support)
2320  *
2321  * Due to the VHT Extended NSS Bandwidth Support, the maximum NSS can
2322  * vary for a given BW/MCS. This function parses the data.
2323  *
2324  * Note: This function is exported by cfg80211.
2325  */
2326 int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
2327                               enum ieee80211_vht_chanwidth bw,
2328                               int mcs, bool ext_nss_bw_capable,
2329                               unsigned int max_vht_nss);
2330
2331 /**
2332  * enum ieee80211_ap_reg_power - regulatory power for a Access Point
2333  *
2334  * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
2335  * @IEEE80211_REG_LPI_AP: Indoor Access Point
2336  * @IEEE80211_REG_SP_AP: Standard power Access Point
2337  * @IEEE80211_REG_VLP_AP: Very low power Access Point
2338  * @IEEE80211_REG_AP_POWER_AFTER_LAST: internal
2339  * @IEEE80211_REG_AP_POWER_MAX: maximum value
2340  */
2341 enum ieee80211_ap_reg_power {
2342         IEEE80211_REG_UNSET_AP,
2343         IEEE80211_REG_LPI_AP,
2344         IEEE80211_REG_SP_AP,
2345         IEEE80211_REG_VLP_AP,
2346         IEEE80211_REG_AP_POWER_AFTER_LAST,
2347         IEEE80211_REG_AP_POWER_MAX =
2348                 IEEE80211_REG_AP_POWER_AFTER_LAST - 1,
2349 };
2350
2351 /**
2352  * enum ieee80211_client_reg_power - regulatory power for a client
2353  *
2354  * @IEEE80211_REG_UNSET_CLIENT: Client has no regulatory power mode
2355  * @IEEE80211_REG_DEFAULT_CLIENT: Default Client
2356  * @IEEE80211_REG_SUBORDINATE_CLIENT: Subordinate Client
2357  * @IEEE80211_REG_CLIENT_POWER_AFTER_LAST: internal
2358  * @IEEE80211_REG_CLIENT_POWER_MAX: maximum value
2359  */
2360 enum ieee80211_client_reg_power {
2361         IEEE80211_REG_UNSET_CLIENT,
2362         IEEE80211_REG_DEFAULT_CLIENT,
2363         IEEE80211_REG_SUBORDINATE_CLIENT,
2364         IEEE80211_REG_CLIENT_POWER_AFTER_LAST,
2365         IEEE80211_REG_CLIENT_POWER_MAX =
2366                 IEEE80211_REG_CLIENT_POWER_AFTER_LAST - 1,
2367 };
2368
2369 /* 802.11ax HE MAC capabilities */
2370 #define IEEE80211_HE_MAC_CAP0_HTC_HE                            0x01
2371 #define IEEE80211_HE_MAC_CAP0_TWT_REQ                           0x02
2372 #define IEEE80211_HE_MAC_CAP0_TWT_RES                           0x04
2373 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP             0x00
2374 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1              0x08
2375 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2              0x10
2376 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3              0x18
2377 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK                 0x18
2378 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1               0x00
2379 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2               0x20
2380 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4               0x40
2381 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8               0x60
2382 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16              0x80
2383 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32              0xa0
2384 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64              0xc0
2385 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED       0xe0
2386 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK            0xe0
2387
2388 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED           0x00
2389 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128                 0x01
2390 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256                 0x02
2391 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512                 0x03
2392 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK                0x03
2393 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US                0x00
2394 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US                0x04
2395 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US               0x08
2396 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK               0x0c
2397 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_1            0x00
2398 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_2            0x10
2399 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_3            0x20
2400 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_4            0x30
2401 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_5            0x40
2402 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_6            0x50
2403 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_7            0x60
2404 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8            0x70
2405 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_MASK         0x70
2406
2407 /* Link adaptation is split between byte HE_MAC_CAP1 and
2408  * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
2409  * in which case the following values apply:
2410  * 0 = No feedback.
2411  * 1 = reserved.
2412  * 2 = Unsolicited feedback.
2413  * 3 = both
2414  */
2415 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION                   0x80
2416
2417 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION                   0x01
2418 #define IEEE80211_HE_MAC_CAP2_ALL_ACK                           0x02
2419 #define IEEE80211_HE_MAC_CAP2_TRS                               0x04
2420 #define IEEE80211_HE_MAC_CAP2_BSR                               0x08
2421 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT                         0x10
2422 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP                   0x20
2423 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING                      0x40
2424 #define IEEE80211_HE_MAC_CAP2_ACK_EN                            0x80
2425
2426 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL                       0x02
2427 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA                          0x04
2428
2429 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
2430  * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
2431  * same field in the HE capabilities.
2432  */
2433 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0           0x00
2434 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1           0x08
2435 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2           0x10
2436 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3           0x18
2437 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK            0x18
2438 #define IEEE80211_HE_MAC_CAP3_AMSDU_FRAG                        0x20
2439 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED                    0x40
2440 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS         0x80
2441
2442 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG              0x01
2443 #define IEEE80211_HE_MAC_CAP4_QTP                               0x02
2444 #define IEEE80211_HE_MAC_CAP4_BQR                               0x04
2445 #define IEEE80211_HE_MAC_CAP4_PSR_RESP                          0x08
2446 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP                        0x10
2447 #define IEEE80211_HE_MAC_CAP4_OPS                               0x20
2448 #define IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU                    0x40
2449 /* Multi TID agg TX is split between byte #4 and #5
2450  * The value is a combination of B39,B40,B41
2451  */
2452 #define IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39          0x80
2453
2454 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40          0x01
2455 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41          0x02
2456 #define IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECTIVE_TRANSMISSION    0x04
2457 #define IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU                  0x08
2458 #define IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX         0x10
2459 #define IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS                  0x20
2460 #define IEEE80211_HE_MAC_CAP5_PUNCTURED_SOUNDING                0x40
2461 #define IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX              0x80
2462
2463 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR       20
2464 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR        16
2465 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR      13
2466
2467 /* 802.11ax HE PHY capabilities */
2468 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G             0x02
2469 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G       0x04
2470 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G            0x08
2471 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G      0x10
2472 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL                0x1e
2473
2474 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G        0x20
2475 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G        0x40
2476 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK                    0xfe
2477
2478 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ  0x01
2479 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ  0x02
2480 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
2481 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
2482 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK                     0x0f
2483 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A                            0x10
2484 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD                    0x20
2485 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US          0x40
2486 /* Midamble RX/TX Max NSTS is split between byte #2 and byte #3 */
2487 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS                   0x80
2488
2489 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS                   0x01
2490 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US                      0x02
2491 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ                       0x04
2492 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ                       0x08
2493 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX                                0x10
2494 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX                                0x20
2495
2496 /* Note that the meaning of UL MU below is different between an AP and a non-AP
2497  * sta, where in the AP case it indicates support for Rx and in the non-AP sta
2498  * case it indicates support for Tx.
2499  */
2500 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO                        0x40
2501 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO                     0x80
2502
2503 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM                   0x00
2504 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK                     0x01
2505 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK                     0x02
2506 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM                   0x03
2507 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK                     0x03
2508 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1                          0x00
2509 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2                          0x04
2510 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM                   0x00
2511 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK                     0x08
2512 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK                     0x10
2513 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM                   0x18
2514 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK                     0x18
2515 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1                          0x00
2516 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2                          0x20
2517 #define IEEE80211_HE_PHY_CAP3_RX_PARTIAL_BW_SU_IN_20MHZ_MU              0x40
2518 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER                             0x80
2519
2520 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE                             0x01
2521 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER                             0x02
2522
2523 /* Minimal allowed value of Max STS under 80MHz is 3 */
2524 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4          0x0c
2525 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5          0x10
2526 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6          0x14
2527 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7          0x18
2528 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8          0x1c
2529 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK       0x1c
2530
2531 /* Minimal allowed value of Max STS above 80MHz is 3 */
2532 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4          0x60
2533 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5          0x80
2534 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6          0xa0
2535 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7          0xc0
2536 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8          0xe0
2537 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK       0xe0
2538
2539 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1      0x00
2540 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2      0x01
2541 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3      0x02
2542 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4      0x03
2543 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5      0x04
2544 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6      0x05
2545 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7      0x06
2546 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8      0x07
2547 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK   0x07
2548
2549 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1      0x00
2550 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2      0x08
2551 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3      0x10
2552 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4      0x18
2553 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5      0x20
2554 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6      0x28
2555 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7      0x30
2556 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8      0x38
2557 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK   0x38
2558
2559 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK                          0x40
2560 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK                          0x80
2561
2562 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU                       0x01
2563 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU                       0x02
2564 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB                    0x04
2565 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB         0x08
2566 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB                               0x10
2567 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE                      0x20
2568 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO               0x40
2569 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT                     0x80
2570
2571 #define IEEE80211_HE_PHY_CAP7_PSR_BASED_SR                              0x01
2572 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP                   0x02
2573 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI          0x04
2574 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1                                  0x08
2575 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2                                  0x10
2576 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3                                  0x18
2577 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4                                  0x20
2578 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5                                  0x28
2579 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6                                  0x30
2580 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7                                  0x38
2581 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK                               0x38
2582 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ                       0x40
2583 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ                       0x80
2584
2585 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI          0x01
2586 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G              0x02
2587 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU                   0x04
2588 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU                   0x08
2589 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI               0x10
2590 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_TX_2X_AND_1XLTF               0x20
2591 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242                            0x00
2592 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484                            0x40
2593 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996                            0x80
2594 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996                          0xc0
2595 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK                           0xc0
2596
2597 #define IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM              0x01
2598 #define IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK                0x02
2599 #define IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU         0x04
2600 #define IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU         0x08
2601 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB     0x10
2602 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB 0x20
2603 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US                   0x0
2604 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US                   0x1
2605 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US                  0x2
2606 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED              0x3
2607 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_POS                   6
2608 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK                  0xc0
2609
2610 #define IEEE80211_HE_PHY_CAP10_HE_MU_M1RU_MAX_LTF                       0x01
2611
2612 /* 802.11ax HE TX/RX MCS NSS Support  */
2613 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS                    (3)
2614 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS                      (6)
2615 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS                      (11)
2616 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK                     0x07c0
2617 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK                     0xf800
2618
2619 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
2620 enum ieee80211_he_highest_mcs_supported_subfield_enc {
2621         HIGHEST_MCS_SUPPORTED_MCS7 = 0,
2622         HIGHEST_MCS_SUPPORTED_MCS8,
2623         HIGHEST_MCS_SUPPORTED_MCS9,
2624         HIGHEST_MCS_SUPPORTED_MCS10,
2625         HIGHEST_MCS_SUPPORTED_MCS11,
2626 };
2627
2628 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
2629 static inline u8
2630 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
2631 {
2632         u8 count = 4;
2633
2634         if (he_cap->phy_cap_info[0] &
2635             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
2636                 count += 4;
2637
2638         if (he_cap->phy_cap_info[0] &
2639             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
2640                 count += 4;
2641
2642         return count;
2643 }
2644
2645 /* 802.11ax HE PPE Thresholds */
2646 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS                    (1)
2647 #define IEEE80211_PPE_THRES_NSS_POS                             (0)
2648 #define IEEE80211_PPE_THRES_NSS_MASK                            (7)
2649 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU   \
2650         (BIT(5) | BIT(6))
2651 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK               0x78
2652 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS                (3)
2653 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE                      (3)
2654 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE                 (7)
2655
2656 /*
2657  * Calculate 802.11ax HE capabilities IE PPE field size
2658  * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
2659  */
2660 static inline u8
2661 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
2662 {
2663         u8 n;
2664
2665         if ((phy_cap_info[6] &
2666              IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
2667                 return 0;
2668
2669         n = hweight8(ppe_thres_hdr &
2670                      IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2671         n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
2672                    IEEE80211_PPE_THRES_NSS_POS));
2673
2674         /*
2675          * Each pair is 6 bits, and we need to add the 7 "header" bits to the
2676          * total size.
2677          */
2678         n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
2679         n = DIV_ROUND_UP(n, 8);
2680
2681         return n;
2682 }
2683
2684 static inline bool ieee80211_he_capa_size_ok(const u8 *data, u8 len)
2685 {
2686         const struct ieee80211_he_cap_elem *he_cap_ie_elem = (const void *)data;
2687         u8 needed = sizeof(*he_cap_ie_elem);
2688
2689         if (len < needed)
2690                 return false;
2691
2692         needed += ieee80211_he_mcs_nss_size(he_cap_ie_elem);
2693         if (len < needed)
2694                 return false;
2695
2696         if (he_cap_ie_elem->phy_cap_info[6] &
2697                         IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2698                 if (len < needed + 1)
2699                         return false;
2700                 needed += ieee80211_he_ppe_size(data[needed],
2701                                                 he_cap_ie_elem->phy_cap_info);
2702         }
2703
2704         return len >= needed;
2705 }
2706
2707 /* HE Operation defines */
2708 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK            0x00000007
2709 #define IEEE80211_HE_OPERATION_TWT_REQUIRED                     0x00000008
2710 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK               0x00003ff0
2711 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET             4
2712 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO                    0x00004000
2713 #define IEEE80211_HE_OPERATION_CO_HOSTED_BSS                    0x00008000
2714 #define IEEE80211_HE_OPERATION_ER_SU_DISABLE                    0x00010000
2715 #define IEEE80211_HE_OPERATION_6GHZ_OP_INFO                     0x00020000
2716 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK                   0x3f000000
2717 #define IEEE80211_HE_OPERATION_BSS_COLOR_OFFSET                 24
2718 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR                0x40000000
2719 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED               0x80000000
2720
2721 #define IEEE80211_6GHZ_CTRL_REG_LPI_AP  0
2722 #define IEEE80211_6GHZ_CTRL_REG_SP_AP   1
2723 #define IEEE80211_6GHZ_CTRL_REG_VLP_AP  2
2724
2725 /**
2726  * struct ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
2727  * @primary: primary channel
2728  * @control: control flags
2729  * @ccfs0: channel center frequency segment 0
2730  * @ccfs1: channel center frequency segment 1
2731  * @minrate: minimum rate (in 1 Mbps units)
2732  */
2733 struct ieee80211_he_6ghz_oper {
2734         u8 primary;
2735 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH   0x3
2736 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ     0
2737 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ     1
2738 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ     2
2739 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ    3
2740 #define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON  0x4
2741 #define IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO    0x38
2742         u8 control;
2743         u8 ccfs0;
2744         u8 ccfs1;
2745         u8 minrate;
2746 } __packed;
2747
2748 /*
2749  * In "9.4.2.161 Transmit Power Envelope element" of "IEEE Std 802.11ax-2021",
2750  * it show four types in "Table 9-275a-Maximum Transmit Power Interpretation
2751  * subfield encoding", and two category for each type in "Table E-12-Regulatory
2752  * Info subfield encoding in the United States".
2753  * So it it totally max 8 Transmit Power Envelope element.
2754  */
2755 #define IEEE80211_TPE_MAX_IE_COUNT      8
2756 /*
2757  * In "Table 9-277—Meaning of Maximum Transmit Power Count subfield"
2758  * of "IEEE Std 802.11ax™‐2021", the max power level is 8.
2759  */
2760 #define IEEE80211_MAX_NUM_PWR_LEVEL     8
2761
2762 #define IEEE80211_TPE_MAX_POWER_COUNT   8
2763
2764 /* transmit power interpretation type of transmit power envelope element */
2765 enum ieee80211_tx_power_intrpt_type {
2766         IEEE80211_TPE_LOCAL_EIRP,
2767         IEEE80211_TPE_LOCAL_EIRP_PSD,
2768         IEEE80211_TPE_REG_CLIENT_EIRP,
2769         IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
2770 };
2771
2772 /**
2773  * struct ieee80211_tx_pwr_env - Transmit Power Envelope
2774  * @tx_power_info: Transmit Power Information field
2775  * @tx_power: Maximum Transmit Power field
2776  *
2777  * This structure represents the payload of the "Transmit Power
2778  * Envelope element" as described in IEEE Std 802.11ax-2021 section
2779  * 9.4.2.161
2780  */
2781 struct ieee80211_tx_pwr_env {
2782         u8 tx_power_info;
2783         s8 tx_power[IEEE80211_TPE_MAX_POWER_COUNT];
2784 } __packed;
2785
2786 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x7
2787 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
2788 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xC0
2789
2790 /*
2791  * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
2792  * @he_oper_ie: byte data of the He Operations IE, stating from the byte
2793  *      after the ext ID byte. It is assumed that he_oper_ie has at least
2794  *      sizeof(struct ieee80211_he_operation) bytes, the caller must have
2795  *      validated this.
2796  * @return the actual size of the IE data (not including header), or 0 on error
2797  */
2798 static inline u8
2799 ieee80211_he_oper_size(const u8 *he_oper_ie)
2800 {
2801         const struct ieee80211_he_operation *he_oper = (const void *)he_oper_ie;
2802         u8 oper_len = sizeof(struct ieee80211_he_operation);
2803         u32 he_oper_params;
2804
2805         /* Make sure the input is not NULL */
2806         if (!he_oper_ie)
2807                 return 0;
2808
2809         /* Calc required length */
2810         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2811         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2812                 oper_len += 3;
2813         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2814                 oper_len++;
2815         if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO)
2816                 oper_len += sizeof(struct ieee80211_he_6ghz_oper);
2817
2818         /* Add the first byte (extension ID) to the total length */
2819         oper_len++;
2820
2821         return oper_len;
2822 }
2823
2824 /**
2825  * ieee80211_he_6ghz_oper - obtain 6 GHz operation field
2826  * @he_oper: HE operation element (must be pre-validated for size)
2827  *      but may be %NULL
2828  *
2829  * Return: a pointer to the 6 GHz operation field, or %NULL
2830  */
2831 static inline const struct ieee80211_he_6ghz_oper *
2832 ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
2833 {
2834         const u8 *ret;
2835         u32 he_oper_params;
2836
2837         if (!he_oper)
2838                 return NULL;
2839
2840         ret = (const void *)&he_oper->optional;
2841
2842         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2843
2844         if (!(he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO))
2845                 return NULL;
2846         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2847                 ret += 3;
2848         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2849                 ret++;
2850
2851         return (const void *)ret;
2852 }
2853
2854 /* HE Spatial Reuse defines */
2855 #define IEEE80211_HE_SPR_PSR_DISALLOWED                         BIT(0)
2856 #define IEEE80211_HE_SPR_NON_SRG_OBSS_PD_SR_DISALLOWED          BIT(1)
2857 #define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT                 BIT(2)
2858 #define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT                BIT(3)
2859 #define IEEE80211_HE_SPR_HESIGA_SR_VAL15_ALLOWED                BIT(4)
2860
2861 /*
2862  * ieee80211_he_spr_size - calculate 802.11ax HE Spatial Reuse IE size
2863  * @he_spr_ie: byte data of the He Spatial Reuse IE, stating from the byte
2864  *      after the ext ID byte. It is assumed that he_spr_ie has at least
2865  *      sizeof(struct ieee80211_he_spr) bytes, the caller must have validated
2866  *      this
2867  * @return the actual size of the IE data (not including header), or 0 on error
2868  */
2869 static inline u8
2870 ieee80211_he_spr_size(const u8 *he_spr_ie)
2871 {
2872         const struct ieee80211_he_spr *he_spr = (const void *)he_spr_ie;
2873         u8 spr_len = sizeof(struct ieee80211_he_spr);
2874         u8 he_spr_params;
2875
2876         /* Make sure the input is not NULL */
2877         if (!he_spr_ie)
2878                 return 0;
2879
2880         /* Calc required length */
2881         he_spr_params = he_spr->he_sr_control;
2882         if (he_spr_params & IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT)
2883                 spr_len++;
2884         if (he_spr_params & IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT)
2885                 spr_len += 18;
2886
2887         /* Add the first byte (extension ID) to the total length */
2888         spr_len++;
2889
2890         return spr_len;
2891 }
2892
2893 /* S1G Capabilities Information field */
2894 #define IEEE80211_S1G_CAPABILITY_LEN    15
2895
2896 #define S1G_CAP0_S1G_LONG       BIT(0)
2897 #define S1G_CAP0_SGI_1MHZ       BIT(1)
2898 #define S1G_CAP0_SGI_2MHZ       BIT(2)
2899 #define S1G_CAP0_SGI_4MHZ       BIT(3)
2900 #define S1G_CAP0_SGI_8MHZ       BIT(4)
2901 #define S1G_CAP0_SGI_16MHZ      BIT(5)
2902 #define S1G_CAP0_SUPP_CH_WIDTH  GENMASK(7, 6)
2903
2904 #define S1G_SUPP_CH_WIDTH_2     0
2905 #define S1G_SUPP_CH_WIDTH_4     1
2906 #define S1G_SUPP_CH_WIDTH_8     2
2907 #define S1G_SUPP_CH_WIDTH_16    3
2908 #define S1G_SUPP_CH_WIDTH_MAX(cap) ((1 << FIELD_GET(S1G_CAP0_SUPP_CH_WIDTH, \
2909                                                     cap[0])) << 1)
2910
2911 #define S1G_CAP1_RX_LDPC        BIT(0)
2912 #define S1G_CAP1_TX_STBC        BIT(1)
2913 #define S1G_CAP1_RX_STBC        BIT(2)
2914 #define S1G_CAP1_SU_BFER        BIT(3)
2915 #define S1G_CAP1_SU_BFEE        BIT(4)
2916 #define S1G_CAP1_BFEE_STS       GENMASK(7, 5)
2917
2918 #define S1G_CAP2_SOUNDING_DIMENSIONS    GENMASK(2, 0)
2919 #define S1G_CAP2_MU_BFER                BIT(3)
2920 #define S1G_CAP2_MU_BFEE                BIT(4)
2921 #define S1G_CAP2_PLUS_HTC_VHT           BIT(5)
2922 #define S1G_CAP2_TRAVELING_PILOT        GENMASK(7, 6)
2923
2924 #define S1G_CAP3_RD_RESPONDER           BIT(0)
2925 #define S1G_CAP3_HT_DELAYED_BA          BIT(1)
2926 #define S1G_CAP3_MAX_MPDU_LEN           BIT(2)
2927 #define S1G_CAP3_MAX_AMPDU_LEN_EXP      GENMASK(4, 3)
2928 #define S1G_CAP3_MIN_MPDU_START         GENMASK(7, 5)
2929
2930 #define S1G_CAP4_UPLINK_SYNC    BIT(0)
2931 #define S1G_CAP4_DYNAMIC_AID    BIT(1)
2932 #define S1G_CAP4_BAT            BIT(2)
2933 #define S1G_CAP4_TIME_ADE       BIT(3)
2934 #define S1G_CAP4_NON_TIM        BIT(4)
2935 #define S1G_CAP4_GROUP_AID      BIT(5)
2936 #define S1G_CAP4_STA_TYPE       GENMASK(7, 6)
2937
2938 #define S1G_CAP5_CENT_AUTH_CONTROL      BIT(0)
2939 #define S1G_CAP5_DIST_AUTH_CONTROL      BIT(1)
2940 #define S1G_CAP5_AMSDU                  BIT(2)
2941 #define S1G_CAP5_AMPDU                  BIT(3)
2942 #define S1G_CAP5_ASYMMETRIC_BA          BIT(4)
2943 #define S1G_CAP5_FLOW_CONTROL           BIT(5)
2944 #define S1G_CAP5_SECTORIZED_BEAM        GENMASK(7, 6)
2945
2946 #define S1G_CAP6_OBSS_MITIGATION        BIT(0)
2947 #define S1G_CAP6_FRAGMENT_BA            BIT(1)
2948 #define S1G_CAP6_NDP_PS_POLL            BIT(2)
2949 #define S1G_CAP6_RAW_OPERATION          BIT(3)
2950 #define S1G_CAP6_PAGE_SLICING           BIT(4)
2951 #define S1G_CAP6_TXOP_SHARING_IMP_ACK   BIT(5)
2952 #define S1G_CAP6_VHT_LINK_ADAPT         GENMASK(7, 6)
2953
2954 #define S1G_CAP7_TACK_AS_PS_POLL                BIT(0)
2955 #define S1G_CAP7_DUP_1MHZ                       BIT(1)
2956 #define S1G_CAP7_MCS_NEGOTIATION                BIT(2)
2957 #define S1G_CAP7_1MHZ_CTL_RESPONSE_PREAMBLE     BIT(3)
2958 #define S1G_CAP7_NDP_BFING_REPORT_POLL          BIT(4)
2959 #define S1G_CAP7_UNSOLICITED_DYN_AID            BIT(5)
2960 #define S1G_CAP7_SECTOR_TRAINING_OPERATION      BIT(6)
2961 #define S1G_CAP7_TEMP_PS_MODE_SWITCH            BIT(7)
2962
2963 #define S1G_CAP8_TWT_GROUPING   BIT(0)
2964 #define S1G_CAP8_BDT            BIT(1)
2965 #define S1G_CAP8_COLOR          GENMASK(4, 2)
2966 #define S1G_CAP8_TWT_REQUEST    BIT(5)
2967 #define S1G_CAP8_TWT_RESPOND    BIT(6)
2968 #define S1G_CAP8_PV1_FRAME      BIT(7)
2969
2970 #define S1G_CAP9_LINK_ADAPT_PER_CONTROL_RESPONSE BIT(0)
2971
2972 #define S1G_OPER_CH_WIDTH_PRIMARY_1MHZ  BIT(0)
2973 #define S1G_OPER_CH_WIDTH_OPER          GENMASK(4, 1)
2974
2975 /* EHT MAC capabilities as defined in P802.11be_D2.0 section 9.4.2.313.2 */
2976 #define IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS                 0x01
2977 #define IEEE80211_EHT_MAC_CAP0_OM_CONTROL                       0x02
2978 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1          0x04
2979 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2          0x08
2980 #define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT                   0x10
2981 #define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC                 0x20
2982 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK                0xc0
2983 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895                0
2984 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991                1
2985 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454               2
2986
2987 #define IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK               0x01
2988
2989 /* EHT PHY capabilities as defined in P802.11be_D2.0 section 9.4.2.313.3 */
2990 #define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ                   0x02
2991 #define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ              0x04
2992 #define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI              0x08
2993 #define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO            0x10
2994 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER                    0x20
2995 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE                    0x40
2996
2997 /* EHT beamformee number of spatial streams <= 80MHz is split */
2998 #define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK         0x80
2999 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK         0x03
3000
3001 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK        0x1c
3002 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK        0xe0
3003
3004 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK          0x07
3005 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK         0x38
3006
3007 /* EHT number of sounding dimensions for 320MHz is split */
3008 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK         0xc0
3009 #define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK         0x01
3010 #define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK                0x02
3011 #define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK                0x04
3012 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK             0x08
3013 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK             0x10
3014 #define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK                  0x20
3015 #define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK          0x40
3016 #define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK                    0x80
3017
3018 #define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO               0x01
3019 #define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP                      0x02
3020 #define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP            0x04
3021 #define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI      0x08
3022 #define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK                      0xf0
3023
3024 #define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK            0x01
3025 #define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP         0x02
3026 #define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP         0x04
3027 #define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT            0x08
3028 #define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK      0x30
3029 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US     0
3030 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US     1
3031 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US    2
3032 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US    3
3033
3034 /* Maximum number of supported EHT LTF is split */
3035 #define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK        0xc0
3036 #define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF               0x40
3037 #define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK        0x07
3038
3039 #define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK                  0x78
3040 #define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP                0x80
3041
3042 #define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW        0x01
3043 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ       0x02
3044 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ      0x04
3045 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ      0x08
3046 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ              0x10
3047 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ             0x20
3048 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ             0x40
3049 #define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT      0x80
3050
3051 #define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA     0x01
3052 #define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA     0x02
3053
3054 /*
3055  * EHT operation channel width as defined in P802.11be_D2.0 section 9.4.2.311
3056  */
3057 #define IEEE80211_EHT_OPER_CHAN_WIDTH           0x7
3058 #define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ     0
3059 #define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ     1
3060 #define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ     2
3061 #define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ    3
3062 #define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ    4
3063
3064 /* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
3065 static inline u8
3066 ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
3067                            const struct ieee80211_eht_cap_elem_fixed *eht_cap,
3068                            bool from_ap)
3069 {
3070         u8 count = 0;
3071
3072         /* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
3073         if (he_cap->phy_cap_info[0] &
3074             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
3075                 return 3;
3076
3077         /* on 2.4 GHz, these three bits are reserved, so should be 0 */
3078         if (he_cap->phy_cap_info[0] &
3079             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
3080                 count += 3;
3081
3082         if (he_cap->phy_cap_info[0] &
3083             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
3084                 count += 3;
3085
3086         if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
3087                 count += 3;
3088
3089         if (count)
3090                 return count;
3091
3092         return from_ap ? 3 : 4;
3093 }
3094
3095 /* 802.11be EHT PPE Thresholds */
3096 #define IEEE80211_EHT_PPE_THRES_NSS_POS                 0
3097 #define IEEE80211_EHT_PPE_THRES_NSS_MASK                0xf
3098 #define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK   0x1f0
3099 #define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE          3
3100 #define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE        9
3101
3102 /*
3103  * Calculate 802.11be EHT capabilities IE EHT field size
3104  */
3105 static inline u8
3106 ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
3107 {
3108         u32 n;
3109
3110         if (!(phy_cap_info[5] &
3111               IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
3112                 return 0;
3113
3114         n = hweight16(ppe_thres_hdr &
3115                       IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
3116         n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
3117
3118         /*
3119          * Each pair is 6 bits, and we need to add the 9 "header" bits to the
3120          * total size.
3121          */
3122         n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
3123             IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
3124         return DIV_ROUND_UP(n, 8);
3125 }
3126
3127 static inline bool
3128 ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
3129                            bool from_ap)
3130 {
3131         const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
3132         u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
3133
3134         if (len < needed || !he_capa)
3135                 return false;
3136
3137         needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
3138                                              (const void *)data,
3139                                              from_ap);
3140         if (len < needed)
3141                 return false;
3142
3143         if (elem->phy_cap_info[5] &
3144                         IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
3145                 u16 ppe_thres_hdr;
3146
3147                 if (len < needed + sizeof(ppe_thres_hdr))
3148                         return false;
3149
3150                 ppe_thres_hdr = get_unaligned_le16(data + needed);
3151                 needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
3152                                                  elem->phy_cap_info);
3153         }
3154
3155         return len >= needed;
3156 }
3157
3158 static inline bool
3159 ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
3160 {
3161         const struct ieee80211_eht_operation *elem = (const void *)data;
3162         u8 needed = sizeof(*elem);
3163
3164         if (len < needed)
3165                 return false;
3166
3167         if (elem->params & IEEE80211_EHT_OPER_INFO_PRESENT) {
3168                 needed += 3;
3169
3170                 if (elem->params &
3171                     IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
3172                         needed += 2;
3173         }
3174
3175         return len >= needed;
3176 }
3177
3178 #define IEEE80211_BW_IND_DIS_SUBCH_PRESENT      BIT(1)
3179
3180 struct ieee80211_bandwidth_indication {
3181         u8 params;
3182         struct ieee80211_eht_operation_info info;
3183 } __packed;
3184
3185 static inline bool
3186 ieee80211_bandwidth_indication_size_ok(const u8 *data, u8 len)
3187 {
3188         const struct ieee80211_bandwidth_indication *bwi = (const void *)data;
3189
3190         if (len < sizeof(*bwi))
3191                 return false;
3192
3193         if (bwi->params & IEEE80211_BW_IND_DIS_SUBCH_PRESENT &&
3194             len < sizeof(*bwi) + 2)
3195                 return false;
3196
3197         return true;
3198 }
3199
3200 #define LISTEN_INT_USF  GENMASK(15, 14)
3201 #define LISTEN_INT_UI   GENMASK(13, 0)
3202
3203 #define IEEE80211_MAX_USF       FIELD_MAX(LISTEN_INT_USF)
3204 #define IEEE80211_MAX_UI        FIELD_MAX(LISTEN_INT_UI)
3205
3206 /* Authentication algorithms */
3207 #define WLAN_AUTH_OPEN 0
3208 #define WLAN_AUTH_SHARED_KEY 1
3209 #define WLAN_AUTH_FT 2
3210 #define WLAN_AUTH_SAE 3
3211 #define WLAN_AUTH_FILS_SK 4
3212 #define WLAN_AUTH_FILS_SK_PFS 5
3213 #define WLAN_AUTH_FILS_PK 6
3214 #define WLAN_AUTH_LEAP 128
3215
3216 #define WLAN_AUTH_CHALLENGE_LEN 128
3217
3218 #define WLAN_CAPABILITY_ESS             (1<<0)
3219 #define WLAN_CAPABILITY_IBSS            (1<<1)
3220
3221 /*
3222  * A mesh STA sets the ESS and IBSS capability bits to zero.
3223  * however, this holds true for p2p probe responses (in the p2p_find
3224  * phase) as well.
3225  */
3226 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
3227         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
3228
3229 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
3230 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
3231 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
3232 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
3233 #define WLAN_CAPABILITY_PBCC            (1<<6)
3234 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
3235
3236 /* 802.11h */
3237 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
3238 #define WLAN_CAPABILITY_QOS             (1<<9)
3239 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
3240 #define WLAN_CAPABILITY_APSD            (1<<11)
3241 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
3242 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
3243 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
3244 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
3245
3246 /* DMG (60gHz) 802.11ad */
3247 /* type - bits 0..1 */
3248 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
3249 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
3250 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
3251 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
3252
3253 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
3254 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
3255 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
3256 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
3257
3258 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
3259 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
3260
3261 /* measurement */
3262 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
3263 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
3264 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
3265
3266 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
3267 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
3268 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
3269 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI        8
3270 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC      11
3271
3272 /* 802.11g ERP information element */
3273 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
3274 #define WLAN_ERP_USE_PROTECTION (1<<1)
3275 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
3276
3277 /* WLAN_ERP_BARKER_PREAMBLE values */
3278 enum {
3279         WLAN_ERP_PREAMBLE_SHORT = 0,
3280         WLAN_ERP_PREAMBLE_LONG = 1,
3281 };
3282
3283 /* Band ID, 802.11ad #8.4.1.45 */
3284 enum {
3285         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
3286         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
3287         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
3288         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
3289         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
3290         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
3291 };
3292
3293 /* Status codes */
3294 enum ieee80211_statuscode {
3295         WLAN_STATUS_SUCCESS = 0,
3296         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
3297         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
3298         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
3299         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
3300         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
3301         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
3302         WLAN_STATUS_CHALLENGE_FAIL = 15,
3303         WLAN_STATUS_AUTH_TIMEOUT = 16,
3304         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
3305         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
3306         /* 802.11b */
3307         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
3308         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
3309         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
3310         /* 802.11h */
3311         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
3312         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
3313         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
3314         /* 802.11g */
3315         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
3316         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
3317         /* 802.11w */
3318         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
3319         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
3320         /* 802.11i */
3321         WLAN_STATUS_INVALID_IE = 40,
3322         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
3323         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
3324         WLAN_STATUS_INVALID_AKMP = 43,
3325         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
3326         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
3327         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
3328         /* 802.11e */
3329         WLAN_STATUS_UNSPECIFIED_QOS = 32,
3330         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
3331         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
3332         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
3333         WLAN_STATUS_REQUEST_DECLINED = 37,
3334         WLAN_STATUS_INVALID_QOS_PARAM = 38,
3335         WLAN_STATUS_CHANGE_TSPEC = 39,
3336         WLAN_STATUS_WAIT_TS_DELAY = 47,
3337         WLAN_STATUS_NO_DIRECT_LINK = 48,
3338         WLAN_STATUS_STA_NOT_PRESENT = 49,
3339         WLAN_STATUS_STA_NOT_QSTA = 50,
3340         /* 802.11s */
3341         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
3342         WLAN_STATUS_FCG_NOT_SUPP = 78,
3343         WLAN_STATUS_STA_NO_TBTT = 78,
3344         /* 802.11ad */
3345         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
3346         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
3347         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
3348         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
3349         WLAN_STATUS_PERFORMING_FST_NOW = 87,
3350         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
3351         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
3352         WLAN_STATUS_REJECT_DSE_BAND = 96,
3353         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
3354         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
3355         /* 802.11ai */
3356         WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
3357         WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
3358         WLAN_STATUS_SAE_HASH_TO_ELEMENT = 126,
3359         WLAN_STATUS_SAE_PK = 127,
3360 };
3361
3362
3363 /* Reason codes */
3364 enum ieee80211_reasoncode {
3365         WLAN_REASON_UNSPECIFIED = 1,
3366         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
3367         WLAN_REASON_DEAUTH_LEAVING = 3,
3368         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
3369         WLAN_REASON_DISASSOC_AP_BUSY = 5,
3370         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
3371         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
3372         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
3373         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
3374         /* 802.11h */
3375         WLAN_REASON_DISASSOC_BAD_POWER = 10,
3376         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
3377         /* 802.11i */
3378         WLAN_REASON_INVALID_IE = 13,
3379         WLAN_REASON_MIC_FAILURE = 14,
3380         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
3381         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
3382         WLAN_REASON_IE_DIFFERENT = 17,
3383         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
3384         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
3385         WLAN_REASON_INVALID_AKMP = 20,
3386         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
3387         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
3388         WLAN_REASON_IEEE8021X_FAILED = 23,
3389         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
3390         /* TDLS (802.11z) */
3391         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
3392         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
3393         /* 802.11e */
3394         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
3395         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
3396         WLAN_REASON_DISASSOC_LOW_ACK = 34,
3397         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
3398         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
3399         WLAN_REASON_QSTA_NOT_USE = 37,
3400         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
3401         WLAN_REASON_QSTA_TIMEOUT = 39,
3402         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
3403         /* 802.11s */
3404         WLAN_REASON_MESH_PEER_CANCELED = 52,
3405         WLAN_REASON_MESH_MAX_PEERS = 53,
3406         WLAN_REASON_MESH_CONFIG = 54,
3407         WLAN_REASON_MESH_CLOSE = 55,
3408         WLAN_REASON_MESH_MAX_RETRIES = 56,
3409         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
3410         WLAN_REASON_MESH_INVALID_GTK = 58,
3411         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
3412         WLAN_REASON_MESH_INVALID_SECURITY = 60,
3413         WLAN_REASON_MESH_PATH_ERROR = 61,
3414         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
3415         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
3416         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
3417         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
3418         WLAN_REASON_MESH_CHAN = 66,
3419 };
3420
3421
3422 /* Information Element IDs */
3423 enum ieee80211_eid {
3424         WLAN_EID_SSID = 0,
3425         WLAN_EID_SUPP_RATES = 1,
3426         WLAN_EID_FH_PARAMS = 2, /* reserved now */
3427         WLAN_EID_DS_PARAMS = 3,
3428         WLAN_EID_CF_PARAMS = 4,
3429         WLAN_EID_TIM = 5,
3430         WLAN_EID_IBSS_PARAMS = 6,
3431         WLAN_EID_COUNTRY = 7,
3432         /* 8, 9 reserved */
3433         WLAN_EID_REQUEST = 10,
3434         WLAN_EID_QBSS_LOAD = 11,
3435         WLAN_EID_EDCA_PARAM_SET = 12,
3436         WLAN_EID_TSPEC = 13,
3437         WLAN_EID_TCLAS = 14,
3438         WLAN_EID_SCHEDULE = 15,
3439         WLAN_EID_CHALLENGE = 16,
3440         /* 17-31 reserved for challenge text extension */
3441         WLAN_EID_PWR_CONSTRAINT = 32,
3442         WLAN_EID_PWR_CAPABILITY = 33,
3443         WLAN_EID_TPC_REQUEST = 34,
3444         WLAN_EID_TPC_REPORT = 35,
3445         WLAN_EID_SUPPORTED_CHANNELS = 36,
3446         WLAN_EID_CHANNEL_SWITCH = 37,
3447         WLAN_EID_MEASURE_REQUEST = 38,
3448         WLAN_EID_MEASURE_REPORT = 39,
3449         WLAN_EID_QUIET = 40,
3450         WLAN_EID_IBSS_DFS = 41,
3451         WLAN_EID_ERP_INFO = 42,
3452         WLAN_EID_TS_DELAY = 43,
3453         WLAN_EID_TCLAS_PROCESSING = 44,
3454         WLAN_EID_HT_CAPABILITY = 45,
3455         WLAN_EID_QOS_CAPA = 46,
3456         /* 47 reserved for Broadcom */
3457         WLAN_EID_RSN = 48,
3458         WLAN_EID_802_15_COEX = 49,
3459         WLAN_EID_EXT_SUPP_RATES = 50,
3460         WLAN_EID_AP_CHAN_REPORT = 51,
3461         WLAN_EID_NEIGHBOR_REPORT = 52,
3462         WLAN_EID_RCPI = 53,
3463         WLAN_EID_MOBILITY_DOMAIN = 54,
3464         WLAN_EID_FAST_BSS_TRANSITION = 55,
3465         WLAN_EID_TIMEOUT_INTERVAL = 56,
3466         WLAN_EID_RIC_DATA = 57,
3467         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
3468         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
3469         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
3470         WLAN_EID_HT_OPERATION = 61,
3471         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
3472         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
3473         WLAN_EID_ANTENNA_INFO = 64,
3474         WLAN_EID_RSNI = 65,
3475         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
3476         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
3477         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
3478         WLAN_EID_TIME_ADVERTISEMENT = 69,
3479         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
3480         WLAN_EID_MULTIPLE_BSSID = 71,
3481         WLAN_EID_BSS_COEX_2040 = 72,
3482         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
3483         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
3484         WLAN_EID_RIC_DESCRIPTOR = 75,
3485         WLAN_EID_MMIE = 76,
3486         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
3487         WLAN_EID_EVENT_REQUEST = 78,
3488         WLAN_EID_EVENT_REPORT = 79,
3489         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
3490         WLAN_EID_DIAGNOSTIC_REPORT = 81,
3491         WLAN_EID_LOCATION_PARAMS = 82,
3492         WLAN_EID_NON_TX_BSSID_CAP =  83,
3493         WLAN_EID_SSID_LIST = 84,
3494         WLAN_EID_MULTI_BSSID_IDX = 85,
3495         WLAN_EID_FMS_DESCRIPTOR = 86,
3496         WLAN_EID_FMS_REQUEST = 87,
3497         WLAN_EID_FMS_RESPONSE = 88,
3498         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
3499         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
3500         WLAN_EID_TSF_REQUEST = 91,
3501         WLAN_EID_TSF_RESPOSNE = 92,
3502         WLAN_EID_WNM_SLEEP_MODE = 93,
3503         WLAN_EID_TIM_BCAST_REQ = 94,
3504         WLAN_EID_TIM_BCAST_RESP = 95,
3505         WLAN_EID_COLL_IF_REPORT = 96,
3506         WLAN_EID_CHANNEL_USAGE = 97,
3507         WLAN_EID_TIME_ZONE = 98,
3508         WLAN_EID_DMS_REQUEST = 99,
3509         WLAN_EID_DMS_RESPONSE = 100,
3510         WLAN_EID_LINK_ID = 101,
3511         WLAN_EID_WAKEUP_SCHEDUL = 102,
3512         /* 103 reserved */
3513         WLAN_EID_CHAN_SWITCH_TIMING = 104,
3514         WLAN_EID_PTI_CONTROL = 105,
3515         WLAN_EID_PU_BUFFER_STATUS = 106,
3516         WLAN_EID_INTERWORKING = 107,
3517         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
3518         WLAN_EID_EXPEDITED_BW_REQ = 109,
3519         WLAN_EID_QOS_MAP_SET = 110,
3520         WLAN_EID_ROAMING_CONSORTIUM = 111,
3521         WLAN_EID_EMERGENCY_ALERT = 112,
3522         WLAN_EID_MESH_CONFIG = 113,
3523         WLAN_EID_MESH_ID = 114,
3524         WLAN_EID_LINK_METRIC_REPORT = 115,
3525         WLAN_EID_CONGESTION_NOTIFICATION = 116,
3526         WLAN_EID_PEER_MGMT = 117,
3527         WLAN_EID_CHAN_SWITCH_PARAM = 118,
3528         WLAN_EID_MESH_AWAKE_WINDOW = 119,
3529         WLAN_EID_BEACON_TIMING = 120,
3530         WLAN_EID_MCCAOP_SETUP_REQ = 121,
3531         WLAN_EID_MCCAOP_SETUP_RESP = 122,
3532         WLAN_EID_MCCAOP_ADVERT = 123,
3533         WLAN_EID_MCCAOP_TEARDOWN = 124,
3534         WLAN_EID_GANN = 125,
3535         WLAN_EID_RANN = 126,
3536         WLAN_EID_EXT_CAPABILITY = 127,
3537         /* 128, 129 reserved for Agere */
3538         WLAN_EID_PREQ = 130,
3539         WLAN_EID_PREP = 131,
3540         WLAN_EID_PERR = 132,
3541         /* 133-136 reserved for Cisco */
3542         WLAN_EID_PXU = 137,
3543         WLAN_EID_PXUC = 138,
3544         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
3545         WLAN_EID_MIC = 140,
3546         WLAN_EID_DESTINATION_URI = 141,
3547         WLAN_EID_UAPSD_COEX = 142,
3548         WLAN_EID_WAKEUP_SCHEDULE = 143,
3549         WLAN_EID_EXT_SCHEDULE = 144,
3550         WLAN_EID_STA_AVAILABILITY = 145,
3551         WLAN_EID_DMG_TSPEC = 146,
3552         WLAN_EID_DMG_AT = 147,
3553         WLAN_EID_DMG_CAP = 148,
3554         /* 149 reserved for Cisco */
3555         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
3556         WLAN_EID_DMG_OPERATION = 151,
3557         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
3558         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
3559         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
3560         /* 155-156 reserved for Cisco */
3561         WLAN_EID_AWAKE_WINDOW = 157,
3562         WLAN_EID_MULTI_BAND = 158,
3563         WLAN_EID_ADDBA_EXT = 159,
3564         WLAN_EID_NEXT_PCP_LIST = 160,
3565         WLAN_EID_PCP_HANDOVER = 161,
3566         WLAN_EID_DMG_LINK_MARGIN = 162,
3567         WLAN_EID_SWITCHING_STREAM = 163,
3568         WLAN_EID_SESSION_TRANSITION = 164,
3569         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
3570         WLAN_EID_CLUSTER_REPORT = 166,
3571         WLAN_EID_RELAY_CAP = 167,
3572         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
3573         WLAN_EID_BEAM_LINK_MAINT = 169,
3574         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
3575         WLAN_EID_U_PID = 171,
3576         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
3577         /* 173 reserved for Symbol */
3578         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
3579         WLAN_EID_QUIET_PERIOD_REQ = 175,
3580         /* 176 reserved for Symbol */
3581         WLAN_EID_QUIET_PERIOD_RESP = 177,
3582         /* 178-179 reserved for Symbol */
3583         /* 180 reserved for ISO/IEC 20011 */
3584         WLAN_EID_EPAC_POLICY = 182,
3585         WLAN_EID_CLISTER_TIME_OFF = 183,
3586         WLAN_EID_INTER_AC_PRIO = 184,
3587         WLAN_EID_SCS_DESCRIPTOR = 185,
3588         WLAN_EID_QLOAD_REPORT = 186,
3589         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
3590         WLAN_EID_HL_STREAM_ID = 188,
3591         WLAN_EID_GCR_GROUP_ADDR = 189,
3592         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
3593         WLAN_EID_VHT_CAPABILITY = 191,
3594         WLAN_EID_VHT_OPERATION = 192,
3595         WLAN_EID_EXTENDED_BSS_LOAD = 193,
3596         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
3597         WLAN_EID_TX_POWER_ENVELOPE = 195,
3598         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
3599         WLAN_EID_AID = 197,
3600         WLAN_EID_QUIET_CHANNEL = 198,
3601         WLAN_EID_OPMODE_NOTIF = 199,
3602
3603         WLAN_EID_REDUCED_NEIGHBOR_REPORT = 201,
3604
3605         WLAN_EID_AID_REQUEST = 210,
3606         WLAN_EID_AID_RESPONSE = 211,
3607         WLAN_EID_S1G_BCN_COMPAT = 213,
3608         WLAN_EID_S1G_SHORT_BCN_INTERVAL = 214,
3609         WLAN_EID_S1G_TWT = 216,
3610         WLAN_EID_S1G_CAPABILITIES = 217,
3611         WLAN_EID_VENDOR_SPECIFIC = 221,
3612         WLAN_EID_QOS_PARAMETER = 222,
3613         WLAN_EID_S1G_OPERATION = 232,
3614         WLAN_EID_CAG_NUMBER = 237,
3615         WLAN_EID_AP_CSN = 239,
3616         WLAN_EID_FILS_INDICATION = 240,
3617         WLAN_EID_DILS = 241,
3618         WLAN_EID_FRAGMENT = 242,
3619         WLAN_EID_RSNX = 244,
3620         WLAN_EID_EXTENSION = 255
3621 };
3622
3623 /* Element ID Extensions for Element ID 255 */
3624 enum ieee80211_eid_ext {
3625         WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
3626         WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
3627         WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
3628         WLAN_EID_EXT_FILS_SESSION = 4,
3629         WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
3630         WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
3631         WLAN_EID_EXT_KEY_DELIVERY = 7,
3632         WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
3633         WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
3634         WLAN_EID_EXT_FILS_NONCE = 13,
3635         WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
3636         WLAN_EID_EXT_HE_CAPABILITY = 35,
3637         WLAN_EID_EXT_HE_OPERATION = 36,
3638         WLAN_EID_EXT_UORA = 37,
3639         WLAN_EID_EXT_HE_MU_EDCA = 38,
3640         WLAN_EID_EXT_HE_SPR = 39,
3641         WLAN_EID_EXT_NDP_FEEDBACK_REPORT_PARAMSET = 41,
3642         WLAN_EID_EXT_BSS_COLOR_CHG_ANN = 42,
3643         WLAN_EID_EXT_QUIET_TIME_PERIOD_SETUP = 43,
3644         WLAN_EID_EXT_ESS_REPORT = 45,
3645         WLAN_EID_EXT_OPS = 46,
3646         WLAN_EID_EXT_HE_BSS_LOAD = 47,
3647         WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME = 52,
3648         WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION = 55,
3649         WLAN_EID_EXT_NON_INHERITANCE = 56,
3650         WLAN_EID_EXT_KNOWN_BSSID = 57,
3651         WLAN_EID_EXT_SHORT_SSID_LIST = 58,
3652         WLAN_EID_EXT_HE_6GHZ_CAPA = 59,
3653         WLAN_EID_EXT_UL_MU_POWER_CAPA = 60,
3654         WLAN_EID_EXT_EHT_OPERATION = 106,
3655         WLAN_EID_EXT_EHT_MULTI_LINK = 107,
3656         WLAN_EID_EXT_EHT_CAPABILITY = 108,
3657         WLAN_EID_EXT_TID_TO_LINK_MAPPING = 109,
3658         WLAN_EID_EXT_BANDWIDTH_INDICATION = 135,
3659 };
3660
3661 /* Action category code */
3662 enum ieee80211_category {
3663         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
3664         WLAN_CATEGORY_QOS = 1,
3665         WLAN_CATEGORY_DLS = 2,
3666         WLAN_CATEGORY_BACK = 3,
3667         WLAN_CATEGORY_PUBLIC = 4,
3668         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
3669         WLAN_CATEGORY_FAST_BBS_TRANSITION = 6,
3670         WLAN_CATEGORY_HT = 7,
3671         WLAN_CATEGORY_SA_QUERY = 8,
3672         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
3673         WLAN_CATEGORY_WNM = 10,
3674         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
3675         WLAN_CATEGORY_TDLS = 12,
3676         WLAN_CATEGORY_MESH_ACTION = 13,
3677         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
3678         WLAN_CATEGORY_SELF_PROTECTED = 15,
3679         WLAN_CATEGORY_DMG = 16,
3680         WLAN_CATEGORY_WMM = 17,
3681         WLAN_CATEGORY_FST = 18,
3682         WLAN_CATEGORY_UNPROT_DMG = 20,
3683         WLAN_CATEGORY_VHT = 21,
3684         WLAN_CATEGORY_S1G = 22,
3685         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
3686         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
3687 };
3688
3689 /* SPECTRUM_MGMT action code */
3690 enum ieee80211_spectrum_mgmt_actioncode {
3691         WLAN_ACTION_SPCT_MSR_REQ = 0,
3692         WLAN_ACTION_SPCT_MSR_RPRT = 1,
3693         WLAN_ACTION_SPCT_TPC_REQ = 2,
3694         WLAN_ACTION_SPCT_TPC_RPRT = 3,
3695         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
3696 };
3697
3698 /* HT action codes */
3699 enum ieee80211_ht_actioncode {
3700         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
3701         WLAN_HT_ACTION_SMPS = 1,
3702         WLAN_HT_ACTION_PSMP = 2,
3703         WLAN_HT_ACTION_PCO_PHASE = 3,
3704         WLAN_HT_ACTION_CSI = 4,
3705         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
3706         WLAN_HT_ACTION_COMPRESSED_BF = 6,
3707         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
3708 };
3709
3710 /* VHT action codes */
3711 enum ieee80211_vht_actioncode {
3712         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
3713         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
3714         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
3715 };
3716
3717 /* Self Protected Action codes */
3718 enum ieee80211_self_protected_actioncode {
3719         WLAN_SP_RESERVED = 0,
3720         WLAN_SP_MESH_PEERING_OPEN = 1,
3721         WLAN_SP_MESH_PEERING_CONFIRM = 2,
3722         WLAN_SP_MESH_PEERING_CLOSE = 3,
3723         WLAN_SP_MGK_INFORM = 4,
3724         WLAN_SP_MGK_ACK = 5,
3725 };
3726
3727 /* Mesh action codes */
3728 enum ieee80211_mesh_actioncode {
3729         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
3730         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
3731         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
3732         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
3733         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
3734         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
3735         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
3736         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
3737         WLAN_MESH_ACTION_MCCA_TEARDOWN,
3738         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
3739         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
3740 };
3741
3742 /* Unprotected WNM action codes */
3743 enum ieee80211_unprotected_wnm_actioncode {
3744         WLAN_UNPROTECTED_WNM_ACTION_TIM = 0,
3745         WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE = 1,
3746 };
3747
3748 /* Security key length */
3749 enum ieee80211_key_len {
3750         WLAN_KEY_LEN_WEP40 = 5,
3751         WLAN_KEY_LEN_WEP104 = 13,
3752         WLAN_KEY_LEN_CCMP = 16,
3753         WLAN_KEY_LEN_CCMP_256 = 32,
3754         WLAN_KEY_LEN_TKIP = 32,
3755         WLAN_KEY_LEN_AES_CMAC = 16,
3756         WLAN_KEY_LEN_SMS4 = 32,
3757         WLAN_KEY_LEN_GCMP = 16,
3758         WLAN_KEY_LEN_GCMP_256 = 32,
3759         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
3760         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
3761         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
3762 };
3763
3764 enum ieee80211_s1g_actioncode {
3765         WLAN_S1G_AID_SWITCH_REQUEST,
3766         WLAN_S1G_AID_SWITCH_RESPONSE,
3767         WLAN_S1G_SYNC_CONTROL,
3768         WLAN_S1G_STA_INFO_ANNOUNCE,
3769         WLAN_S1G_EDCA_PARAM_SET,
3770         WLAN_S1G_EL_OPERATION,
3771         WLAN_S1G_TWT_SETUP,
3772         WLAN_S1G_TWT_TEARDOWN,
3773         WLAN_S1G_SECT_GROUP_ID_LIST,
3774         WLAN_S1G_SECT_ID_FEEDBACK,
3775         WLAN_S1G_TWT_INFORMATION = 11,
3776 };
3777
3778 #define IEEE80211_WEP_IV_LEN            4
3779 #define IEEE80211_WEP_ICV_LEN           4
3780 #define IEEE80211_CCMP_HDR_LEN          8
3781 #define IEEE80211_CCMP_MIC_LEN          8
3782 #define IEEE80211_CCMP_PN_LEN           6
3783 #define IEEE80211_CCMP_256_HDR_LEN      8
3784 #define IEEE80211_CCMP_256_MIC_LEN      16
3785 #define IEEE80211_CCMP_256_PN_LEN       6
3786 #define IEEE80211_TKIP_IV_LEN           8
3787 #define IEEE80211_TKIP_ICV_LEN          4
3788 #define IEEE80211_CMAC_PN_LEN           6
3789 #define IEEE80211_GMAC_PN_LEN           6
3790 #define IEEE80211_GCMP_HDR_LEN          8
3791 #define IEEE80211_GCMP_MIC_LEN          16
3792 #define IEEE80211_GCMP_PN_LEN           6
3793
3794 #define FILS_NONCE_LEN                  16
3795 #define FILS_MAX_KEK_LEN                64
3796
3797 #define FILS_ERP_MAX_USERNAME_LEN       16
3798 #define FILS_ERP_MAX_REALM_LEN          253
3799 #define FILS_ERP_MAX_RRK_LEN            64
3800
3801 #define PMK_MAX_LEN                     64
3802 #define SAE_PASSWORD_MAX_LEN            128
3803
3804 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
3805 enum ieee80211_pub_actioncode {
3806         WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
3807         WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
3808         WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
3809         WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
3810         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
3811         WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
3812         WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
3813         WLAN_PUB_ACTION_MSMT_PILOT = 7,
3814         WLAN_PUB_ACTION_DSE_PC = 8,
3815         WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
3816         WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
3817         WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
3818         WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
3819         WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
3820         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
3821         WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
3822         WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
3823         WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
3824         WLAN_PUB_ACTION_QMF_POLICY = 18,
3825         WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
3826         WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
3827         WLAN_PUB_ACTION_QLOAD_REPORT = 21,
3828         WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
3829         WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
3830         WLAN_PUB_ACTION_PUBLIC_KEY = 24,
3831         WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
3832         WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
3833         WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
3834         WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
3835         WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
3836         WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
3837         WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
3838         WLAN_PUB_ACTION_FTM_REQUEST = 32,
3839         WLAN_PUB_ACTION_FTM_RESPONSE = 33,
3840         WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
3841 };
3842
3843 /* TDLS action codes */
3844 enum ieee80211_tdls_actioncode {
3845         WLAN_TDLS_SETUP_REQUEST = 0,
3846         WLAN_TDLS_SETUP_RESPONSE = 1,
3847         WLAN_TDLS_SETUP_CONFIRM = 2,
3848         WLAN_TDLS_TEARDOWN = 3,
3849         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
3850         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
3851         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
3852         WLAN_TDLS_PEER_PSM_REQUEST = 7,
3853         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
3854         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
3855         WLAN_TDLS_DISCOVERY_REQUEST = 10,
3856 };
3857
3858 /* Extended Channel Switching capability to be set in the 1st byte of
3859  * the @WLAN_EID_EXT_CAPABILITY information element
3860  */
3861 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
3862
3863 /* Multiple BSSID capability is set in the 6th bit of 3rd byte of the
3864  * @WLAN_EID_EXT_CAPABILITY information element
3865  */
3866 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT      BIT(6)
3867
3868 /* Timing Measurement protocol for time sync is set in the 7th bit of 3rd byte
3869  * of the @WLAN_EID_EXT_CAPABILITY information element
3870  */
3871 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT       BIT(7)
3872
3873 /* TDLS capabilities in the 4th byte of @WLAN_EID_EXT_CAPABILITY */
3874 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
3875 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
3876 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
3877
3878 /* Interworking capabilities are set in 7th bit of 4th byte of the
3879  * @WLAN_EID_EXT_CAPABILITY information element
3880  */
3881 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
3882
3883 /*
3884  * TDLS capabililites to be enabled in the 5th byte of the
3885  * @WLAN_EID_EXT_CAPABILITY information element
3886  */
3887 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
3888 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
3889 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
3890
3891 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
3892 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
3893
3894 /* Defines the maximal number of MSDUs in an A-MSDU. */
3895 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
3896 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
3897
3898 /*
3899  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
3900  * information element
3901  */
3902 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
3903
3904 /* Defines support for TWT Requester and TWT Responder */
3905 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT   BIT(5)
3906 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT   BIT(6)
3907
3908 /*
3909  * When set, indicates that the AP is able to tolerate 26-tone RU UL
3910  * OFDMA transmissions using HE TB PPDU from OBSS (not falsely classify the
3911  * 26-tone RU UL OFDMA transmissions as radar pulses).
3912  */
3913 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(7)
3914
3915 /* Defines support for enhanced multi-bssid advertisement*/
3916 #define WLAN_EXT_CAPA11_EMA_SUPPORT     BIT(3)
3917
3918 /* TDLS specific payload type in the LLC/SNAP header */
3919 #define WLAN_TDLS_SNAP_RFTYPE   0x2
3920
3921 /* BSS Coex IE information field bits */
3922 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
3923
3924 /**
3925  * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
3926  *
3927  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
3928  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
3929  *      that will be specified in a vendor specific information element
3930  */
3931 enum ieee80211_mesh_sync_method {
3932         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
3933         IEEE80211_SYNC_METHOD_VENDOR = 255,
3934 };
3935
3936 /**
3937  * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
3938  *
3939  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
3940  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
3941  *      be specified in a vendor specific information element
3942  */
3943 enum ieee80211_mesh_path_protocol {
3944         IEEE80211_PATH_PROTOCOL_HWMP = 1,
3945         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
3946 };
3947
3948 /**
3949  * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
3950  *
3951  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
3952  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
3953  *      specified in a vendor specific information element
3954  */
3955 enum ieee80211_mesh_path_metric {
3956         IEEE80211_PATH_METRIC_AIRTIME = 1,
3957         IEEE80211_PATH_METRIC_VENDOR = 255,
3958 };
3959
3960 /**
3961  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
3962  *
3963  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
3964  *
3965  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
3966  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
3967  *      this value
3968  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
3969  *      the proactive PREQ with proactive PREP subfield set to 0
3970  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
3971  *      supports the proactive PREQ with proactive PREP subfield set to 1
3972  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
3973  *      the proactive RANN
3974  */
3975 enum ieee80211_root_mode_identifier {
3976         IEEE80211_ROOTMODE_NO_ROOT = 0,
3977         IEEE80211_ROOTMODE_ROOT = 1,
3978         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
3979         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
3980         IEEE80211_PROACTIVE_RANN = 4,
3981 };
3982
3983 /*
3984  * IEEE 802.11-2007 7.3.2.9 Country information element
3985  *
3986  * Minimum length is 8 octets, ie len must be evenly
3987  * divisible by 2
3988  */
3989
3990 /* Although the spec says 8 I'm seeing 6 in practice */
3991 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
3992
3993 /* The Country String field of the element shall be 3 octets in length */
3994 #define IEEE80211_COUNTRY_STRING_LEN    3
3995
3996 /*
3997  * For regulatory extension stuff see IEEE 802.11-2007
3998  * Annex I (page 1141) and Annex J (page 1147). Also
3999  * review 7.3.2.9.
4000  *
4001  * When dot11RegulatoryClassesRequired is true and the
4002  * first_channel/reg_extension_id is >= 201 then the IE
4003  * compromises of the 'ext' struct represented below:
4004  *
4005  *  - Regulatory extension ID - when generating IE this just needs
4006  *    to be monotonically increasing for each triplet passed in
4007  *    the IE
4008  *  - Regulatory class - index into set of rules
4009  *  - Coverage class - index into air propagation time (Table 7-27),
4010  *    in microseconds, you can compute the air propagation time from
4011  *    the index by multiplying by 3, so index 10 yields a propagation
4012  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
4013  *    yet. A value of 0 inicates air propagation of <= 1 us.
4014  *
4015  *  See also Table I.2 for Emission limit sets and table
4016  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
4017  *  a reg_class to an emission limit set and behavior limit set.
4018  */
4019 #define IEEE80211_COUNTRY_EXTENSION_ID 201
4020
4021 /*
4022  *  Channels numbers in the IE must be monotonically increasing
4023  *  if dot11RegulatoryClassesRequired is not true.
4024  *
4025  *  If dot11RegulatoryClassesRequired is true consecutive
4026  *  subband triplets following a regulatory triplet shall
4027  *  have monotonically increasing first_channel number fields.
4028  *
4029  *  Channel numbers shall not overlap.
4030  *
4031  *  Note that max_power is signed.
4032  */
4033 struct ieee80211_country_ie_triplet {
4034         union {
4035                 struct {
4036                         u8 first_channel;
4037                         u8 num_channels;
4038                         s8 max_power;
4039                 } __packed chans;
4040                 struct {
4041                         u8 reg_extension_id;
4042                         u8 reg_class;
4043                         u8 coverage_class;
4044                 } __packed ext;
4045         };
4046 } __packed;
4047
4048 enum ieee80211_timeout_interval_type {
4049         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
4050         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
4051         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
4052 };
4053
4054 /**
4055  * struct ieee80211_timeout_interval_ie - Timeout Interval element
4056  * @type: type, see &enum ieee80211_timeout_interval_type
4057  * @value: timeout interval value
4058  */
4059 struct ieee80211_timeout_interval_ie {
4060         u8 type;
4061         __le32 value;
4062 } __packed;
4063
4064 /**
4065  * enum ieee80211_idle_options - BSS idle options
4066  * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
4067  *      protected frame to the AP to reset the idle timer at the AP for
4068  *      the station.
4069  */
4070 enum ieee80211_idle_options {
4071         WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
4072 };
4073
4074 /**
4075  * struct ieee80211_bss_max_idle_period_ie
4076  *
4077  * This structure refers to "BSS Max idle period element"
4078  *
4079  * @max_idle_period: indicates the time period during which a station can
4080  *      refrain from transmitting frames to its associated AP without being
4081  *      disassociated. In units of 1000 TUs.
4082  * @idle_options: indicates the options associated with the BSS idle capability
4083  *      as specified in &enum ieee80211_idle_options.
4084  */
4085 struct ieee80211_bss_max_idle_period_ie {
4086         __le16 max_idle_period;
4087         u8 idle_options;
4088 } __packed;
4089
4090 /* BACK action code */
4091 enum ieee80211_back_actioncode {
4092         WLAN_ACTION_ADDBA_REQ = 0,
4093         WLAN_ACTION_ADDBA_RESP = 1,
4094         WLAN_ACTION_DELBA = 2,
4095 };
4096
4097 /* BACK (block-ack) parties */
4098 enum ieee80211_back_parties {
4099         WLAN_BACK_RECIPIENT = 0,
4100         WLAN_BACK_INITIATOR = 1,
4101 };
4102
4103 /* SA Query action */
4104 enum ieee80211_sa_query_action {
4105         WLAN_ACTION_SA_QUERY_REQUEST = 0,
4106         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
4107 };
4108
4109 /**
4110  * struct ieee80211_bssid_index
4111  *
4112  * This structure refers to "Multiple BSSID-index element"
4113  *
4114  * @bssid_index: BSSID index
4115  * @dtim_period: optional, overrides transmitted BSS dtim period
4116  * @dtim_count: optional, overrides transmitted BSS dtim count
4117  */
4118 struct ieee80211_bssid_index {
4119         u8 bssid_index;
4120         u8 dtim_period;
4121         u8 dtim_count;
4122 };
4123
4124 /**
4125  * struct ieee80211_multiple_bssid_configuration
4126  *
4127  * This structure refers to "Multiple BSSID Configuration element"
4128  *
4129  * @bssid_count: total number of active BSSIDs in the set
4130  * @profile_periodicity: the least number of beacon frames need to be received
4131  *      in order to discover all the nontransmitted BSSIDs in the set.
4132  */
4133 struct ieee80211_multiple_bssid_configuration {
4134         u8 bssid_count;
4135         u8 profile_periodicity;
4136 };
4137
4138 #define SUITE(oui, id)  (((oui) << 8) | (id))
4139
4140 /* cipher suite selectors */
4141 #define WLAN_CIPHER_SUITE_USE_GROUP     SUITE(0x000FAC, 0)
4142 #define WLAN_CIPHER_SUITE_WEP40         SUITE(0x000FAC, 1)
4143 #define WLAN_CIPHER_SUITE_TKIP          SUITE(0x000FAC, 2)
4144 /* reserved:                            SUITE(0x000FAC, 3) */
4145 #define WLAN_CIPHER_SUITE_CCMP          SUITE(0x000FAC, 4)
4146 #define WLAN_CIPHER_SUITE_WEP104        SUITE(0x000FAC, 5)
4147 #define WLAN_CIPHER_SUITE_AES_CMAC      SUITE(0x000FAC, 6)
4148 #define WLAN_CIPHER_SUITE_GCMP          SUITE(0x000FAC, 8)
4149 #define WLAN_CIPHER_SUITE_GCMP_256      SUITE(0x000FAC, 9)
4150 #define WLAN_CIPHER_SUITE_CCMP_256      SUITE(0x000FAC, 10)
4151 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  SUITE(0x000FAC, 11)
4152 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  SUITE(0x000FAC, 12)
4153 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  SUITE(0x000FAC, 13)
4154
4155 #define WLAN_CIPHER_SUITE_SMS4          SUITE(0x001472, 1)
4156
4157 /* AKM suite selectors */
4158 #define WLAN_AKM_SUITE_8021X                    SUITE(0x000FAC, 1)
4159 #define WLAN_AKM_SUITE_PSK                      SUITE(0x000FAC, 2)
4160 #define WLAN_AKM_SUITE_FT_8021X                 SUITE(0x000FAC, 3)
4161 #define WLAN_AKM_SUITE_FT_PSK                   SUITE(0x000FAC, 4)
4162 #define WLAN_AKM_SUITE_8021X_SHA256             SUITE(0x000FAC, 5)
4163 #define WLAN_AKM_SUITE_PSK_SHA256               SUITE(0x000FAC, 6)
4164 #define WLAN_AKM_SUITE_TDLS                     SUITE(0x000FAC, 7)
4165 #define WLAN_AKM_SUITE_SAE                      SUITE(0x000FAC, 8)
4166 #define WLAN_AKM_SUITE_FT_OVER_SAE              SUITE(0x000FAC, 9)
4167 #define WLAN_AKM_SUITE_AP_PEER_KEY              SUITE(0x000FAC, 10)
4168 #define WLAN_AKM_SUITE_8021X_SUITE_B            SUITE(0x000FAC, 11)
4169 #define WLAN_AKM_SUITE_8021X_SUITE_B_192        SUITE(0x000FAC, 12)
4170 #define WLAN_AKM_SUITE_FT_8021X_SHA384          SUITE(0x000FAC, 13)
4171 #define WLAN_AKM_SUITE_FILS_SHA256              SUITE(0x000FAC, 14)
4172 #define WLAN_AKM_SUITE_FILS_SHA384              SUITE(0x000FAC, 15)
4173 #define WLAN_AKM_SUITE_FT_FILS_SHA256           SUITE(0x000FAC, 16)
4174 #define WLAN_AKM_SUITE_FT_FILS_SHA384           SUITE(0x000FAC, 17)
4175 #define WLAN_AKM_SUITE_OWE                      SUITE(0x000FAC, 18)
4176 #define WLAN_AKM_SUITE_FT_PSK_SHA384            SUITE(0x000FAC, 19)
4177 #define WLAN_AKM_SUITE_PSK_SHA384               SUITE(0x000FAC, 20)
4178
4179 #define WLAN_AKM_SUITE_WFA_DPP                  SUITE(WLAN_OUI_WFA, 2)
4180
4181 #define WLAN_MAX_KEY_LEN                32
4182
4183 #define WLAN_PMK_NAME_LEN               16
4184 #define WLAN_PMKID_LEN                  16
4185 #define WLAN_PMK_LEN_EAP_LEAP           16
4186 #define WLAN_PMK_LEN                    32
4187 #define WLAN_PMK_LEN_SUITE_B_192        48
4188
4189 #define WLAN_OUI_WFA                    0x506f9a
4190 #define WLAN_OUI_TYPE_WFA_P2P           9
4191 #define WLAN_OUI_TYPE_WFA_DPP           0x1A
4192 #define WLAN_OUI_MICROSOFT              0x0050f2
4193 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
4194 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
4195 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
4196 #define WLAN_OUI_TYPE_MICROSOFT_TPC     8
4197
4198 /*
4199  * WMM/802.11e Tspec Element
4200  */
4201 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
4202 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
4203
4204 enum ieee80211_tspec_status_code {
4205         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
4206         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
4207 };
4208
4209 struct ieee80211_tspec_ie {
4210         u8 element_id;
4211         u8 len;
4212         u8 oui[3];
4213         u8 oui_type;
4214         u8 oui_subtype;
4215         u8 version;
4216         __le16 tsinfo;
4217         u8 tsinfo_resvd;
4218         __le16 nominal_msdu;
4219         __le16 max_msdu;
4220         __le32 min_service_int;
4221         __le32 max_service_int;
4222         __le32 inactivity_int;
4223         __le32 suspension_int;
4224         __le32 service_start_time;
4225         __le32 min_data_rate;
4226         __le32 mean_data_rate;
4227         __le32 peak_data_rate;
4228         __le32 max_burst_size;
4229         __le32 delay_bound;
4230         __le32 min_phy_rate;
4231         __le16 sba;
4232         __le16 medium_time;
4233 } __packed;
4234
4235 struct ieee80211_he_6ghz_capa {
4236         /* uses IEEE80211_HE_6GHZ_CAP_* below */
4237         __le16 capa;
4238 } __packed;
4239
4240 /* HE 6 GHz band capabilities */
4241 /* uses enum ieee80211_min_mpdu_spacing values */
4242 #define IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START    0x0007
4243 /* uses enum ieee80211_vht_max_ampdu_length_exp values */
4244 #define IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP 0x0038
4245 /* uses IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_* values */
4246 #define IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN      0x00c0
4247 /* WLAN_HT_CAP_SM_PS_* values */
4248 #define IEEE80211_HE_6GHZ_CAP_SM_PS             0x0600
4249 #define IEEE80211_HE_6GHZ_CAP_RD_RESPONDER      0x0800
4250 #define IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS    0x1000
4251 #define IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS    0x2000
4252
4253 /**
4254  * ieee80211_get_qos_ctl - get pointer to qos control bytes
4255  * @hdr: the frame
4256  *
4257  * The qos ctrl bytes come after the frame_control, duration, seq_num
4258  * and 3 or 4 addresses of length ETH_ALEN. Checks frame_control to choose
4259  * between struct ieee80211_qos_hdr_4addr and struct ieee80211_qos_hdr.
4260  */
4261 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
4262 {
4263         union {
4264                 struct ieee80211_qos_hdr        addr3;
4265                 struct ieee80211_qos_hdr_4addr  addr4;
4266         } *qos;
4267
4268         qos = (void *)hdr;
4269         if (ieee80211_has_a4(qos->addr3.frame_control))
4270                 return (u8 *)&qos->addr4.qos_ctrl;
4271         else
4272                 return (u8 *)&qos->addr3.qos_ctrl;
4273 }
4274
4275 /**
4276  * ieee80211_get_tid - get qos TID
4277  * @hdr: the frame
4278  */
4279 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
4280 {
4281         u8 *qc = ieee80211_get_qos_ctl(hdr);
4282
4283         return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
4284 }
4285
4286 /**
4287  * ieee80211_get_SA - get pointer to SA
4288  * @hdr: the frame
4289  *
4290  * Given an 802.11 frame, this function returns the offset
4291  * to the source address (SA). It does not verify that the
4292  * header is long enough to contain the address, and the
4293  * header must be long enough to contain the frame control
4294  * field.
4295  */
4296 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
4297 {
4298         if (ieee80211_has_a4(hdr->frame_control))
4299                 return hdr->addr4;
4300         if (ieee80211_has_fromds(hdr->frame_control))
4301                 return hdr->addr3;
4302         return hdr->addr2;
4303 }
4304
4305 /**
4306  * ieee80211_get_DA - get pointer to DA
4307  * @hdr: the frame
4308  *
4309  * Given an 802.11 frame, this function returns the offset
4310  * to the destination address (DA). It does not verify that
4311  * the header is long enough to contain the address, and the
4312  * header must be long enough to contain the frame control
4313  * field.
4314  */
4315 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
4316 {
4317         if (ieee80211_has_tods(hdr->frame_control))
4318                 return hdr->addr3;
4319         else
4320                 return hdr->addr1;
4321 }
4322
4323 /**
4324  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
4325  * @skb: the skb to check, starting with the 802.11 header
4326  */
4327 static inline bool ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
4328 {
4329         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4330         __le16 fc = mgmt->frame_control;
4331
4332         /*
4333          * IEEE 802.11 REVme D2.0 definition of bufferable MMPDU;
4334          * note that this ignores the IBSS special case.
4335          */
4336         if (!ieee80211_is_mgmt(fc))
4337                 return false;
4338
4339         if (ieee80211_is_disassoc(fc) || ieee80211_is_deauth(fc))
4340                 return true;
4341
4342         if (!ieee80211_is_action(fc))
4343                 return false;
4344
4345         if (skb->len < offsetofend(typeof(*mgmt), u.action.u.ftm.action_code))
4346                 return true;
4347
4348         /* action frame - additionally check for non-bufferable FTM */
4349
4350         if (mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
4351             mgmt->u.action.category != WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION)
4352                 return true;
4353
4354         if (mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_REQUEST ||
4355             mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_RESPONSE)
4356                 return false;
4357
4358         return true;
4359 }
4360
4361 /**
4362  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
4363  * @hdr: the frame (buffer must include at least the first octet of payload)
4364  */
4365 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
4366 {
4367         if (ieee80211_is_disassoc(hdr->frame_control) ||
4368             ieee80211_is_deauth(hdr->frame_control))
4369                 return true;
4370
4371         if (ieee80211_is_action(hdr->frame_control)) {
4372                 u8 *category;
4373
4374                 /*
4375                  * Action frames, excluding Public Action frames, are Robust
4376                  * Management Frames. However, if we are looking at a Protected
4377                  * frame, skip the check since the data may be encrypted and
4378                  * the frame has already been found to be a Robust Management
4379                  * Frame (by the other end).
4380                  */
4381                 if (ieee80211_has_protected(hdr->frame_control))
4382                         return true;
4383                 category = ((u8 *) hdr) + 24;
4384                 return *category != WLAN_CATEGORY_PUBLIC &&
4385                         *category != WLAN_CATEGORY_HT &&
4386                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
4387                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
4388                         *category != WLAN_CATEGORY_UNPROT_DMG &&
4389                         *category != WLAN_CATEGORY_VHT &&
4390                         *category != WLAN_CATEGORY_S1G &&
4391                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
4392         }
4393
4394         return false;
4395 }
4396
4397 /**
4398  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
4399  * @skb: the skb containing the frame, length will be checked
4400  */
4401 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
4402 {
4403         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4404                 return false;
4405         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
4406 }
4407
4408 /**
4409  * ieee80211_is_public_action - check if frame is a public action frame
4410  * @hdr: the frame
4411  * @len: length of the frame
4412  */
4413 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
4414                                               size_t len)
4415 {
4416         struct ieee80211_mgmt *mgmt = (void *)hdr;
4417
4418         if (len < IEEE80211_MIN_ACTION_SIZE)
4419                 return false;
4420         if (!ieee80211_is_action(hdr->frame_control))
4421                 return false;
4422         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
4423 }
4424
4425 /**
4426  * ieee80211_is_protected_dual_of_public_action - check if skb contains a
4427  * protected dual of public action management frame
4428  * @skb: the skb containing the frame, length will be checked
4429  *
4430  * Return: true if the skb contains a protected dual of public action
4431  * management frame, false otherwise.
4432  */
4433 static inline bool
4434 ieee80211_is_protected_dual_of_public_action(struct sk_buff *skb)
4435 {
4436         u8 action;
4437
4438         if (!ieee80211_is_public_action((void *)skb->data, skb->len) ||
4439             skb->len < IEEE80211_MIN_ACTION_SIZE + 1)
4440                 return false;
4441
4442         action = *(u8 *)(skb->data + IEEE80211_MIN_ACTION_SIZE);
4443
4444         return action != WLAN_PUB_ACTION_20_40_BSS_COEX &&
4445                 action != WLAN_PUB_ACTION_DSE_REG_LOC_ANN &&
4446                 action != WLAN_PUB_ACTION_MSMT_PILOT &&
4447                 action != WLAN_PUB_ACTION_TDLS_DISCOVER_RES &&
4448                 action != WLAN_PUB_ACTION_LOC_TRACK_NOTI &&
4449                 action != WLAN_PUB_ACTION_FTM_REQUEST &&
4450                 action != WLAN_PUB_ACTION_FTM_RESPONSE &&
4451                 action != WLAN_PUB_ACTION_FILS_DISCOVERY &&
4452                 action != WLAN_PUB_ACTION_VENDOR_SPECIFIC;
4453 }
4454
4455 /**
4456  * _ieee80211_is_group_privacy_action - check if frame is a group addressed
4457  * privacy action frame
4458  * @hdr: the frame
4459  */
4460 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
4461 {
4462         struct ieee80211_mgmt *mgmt = (void *)hdr;
4463
4464         if (!ieee80211_is_action(hdr->frame_control) ||
4465             !is_multicast_ether_addr(hdr->addr1))
4466                 return false;
4467
4468         return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
4469                mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
4470 }
4471
4472 /**
4473  * ieee80211_is_group_privacy_action - check if frame is a group addressed
4474  * privacy action frame
4475  * @skb: the skb containing the frame, length will be checked
4476  */
4477 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
4478 {
4479         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4480                 return false;
4481         return _ieee80211_is_group_privacy_action((void *)skb->data);
4482 }
4483
4484 /**
4485  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
4486  * @tu: the TUs
4487  */
4488 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
4489 {
4490         return 1024 * tu;
4491 }
4492
4493 /**
4494  * ieee80211_check_tim - check if AID bit is set in TIM
4495  * @tim: the TIM IE
4496  * @tim_len: length of the TIM IE
4497  * @aid: the AID to look for
4498  */
4499 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
4500                                        u8 tim_len, u16 aid)
4501 {
4502         u8 mask;
4503         u8 index, indexn1, indexn2;
4504
4505         if (unlikely(!tim || tim_len < sizeof(*tim)))
4506                 return false;
4507
4508         aid &= 0x3fff;
4509         index = aid / 8;
4510         mask  = 1 << (aid & 7);
4511
4512         indexn1 = tim->bitmap_ctrl & 0xfe;
4513         indexn2 = tim_len + indexn1 - 4;
4514
4515         if (index < indexn1 || index > indexn2)
4516                 return false;
4517
4518         index -= indexn1;
4519
4520         return !!(tim->virtual_map[index] & mask);
4521 }
4522
4523 /**
4524  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
4525  * @skb: the skb containing the frame, length will not be checked
4526  *
4527  * This function assumes the frame is a data frame, and that the network header
4528  * is in the correct place.
4529  */
4530 static inline int ieee80211_get_tdls_action(struct sk_buff *skb)
4531 {
4532         if (!skb_is_nonlinear(skb) &&
4533             skb->len > (skb_network_offset(skb) + 2)) {
4534                 /* Point to where the indication of TDLS should start */
4535                 const u8 *tdls_data = skb_network_header(skb) - 2;
4536
4537                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
4538                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
4539                     tdls_data[3] == WLAN_CATEGORY_TDLS)
4540                         return tdls_data[4];
4541         }
4542
4543         return -1;
4544 }
4545
4546 /* convert time units */
4547 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
4548 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
4549
4550 /* convert frequencies */
4551 #define MHZ_TO_KHZ(freq) ((freq) * 1000)
4552 #define KHZ_TO_MHZ(freq) ((freq) / 1000)
4553 #define PR_KHZ(f) KHZ_TO_MHZ(f), f % 1000
4554 #define KHZ_F "%d.%03d"
4555
4556 /* convert powers */
4557 #define DBI_TO_MBI(gain) ((gain) * 100)
4558 #define MBI_TO_DBI(gain) ((gain) / 100)
4559 #define DBM_TO_MBM(gain) ((gain) * 100)
4560 #define MBM_TO_DBM(gain) ((gain) / 100)
4561
4562 /**
4563  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
4564  * @skb: the skb containing the frame, length will be checked
4565  *
4566  * This function checks if it's either TPC report action frame or Link
4567  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
4568  * and 8.5.7.5 accordingly.
4569  */
4570 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
4571 {
4572         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4573
4574         if (!ieee80211_is_action(mgmt->frame_control))
4575                 return false;
4576
4577         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
4578                        sizeof(mgmt->u.action.u.tpc_report))
4579                 return false;
4580
4581         /*
4582          * TPC report - check that:
4583          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
4584          * spectrum management action = 3 (TPC/Link Measurement report)
4585          * TPC report EID = 35
4586          * TPC report element length = 2
4587          *
4588          * The spectrum management's tpc_report struct is used here both for
4589          * parsing tpc_report and radio measurement's link measurement report
4590          * frame, since the relevant part is identical in both frames.
4591          */
4592         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
4593             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
4594                 return false;
4595
4596         /* both spectrum mgmt and link measurement have same action code */
4597         if (mgmt->u.action.u.tpc_report.action_code !=
4598             WLAN_ACTION_SPCT_TPC_RPRT)
4599                 return false;
4600
4601         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
4602             mgmt->u.action.u.tpc_report.tpc_elem_length !=
4603             sizeof(struct ieee80211_tpc_report_ie))
4604                 return false;
4605
4606         return true;
4607 }
4608
4609 static inline bool ieee80211_is_timing_measurement(struct sk_buff *skb)
4610 {
4611         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4612
4613         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4614                 return false;
4615
4616         if (!ieee80211_is_action(mgmt->frame_control))
4617                 return false;
4618
4619         if (mgmt->u.action.category == WLAN_CATEGORY_WNM_UNPROTECTED &&
4620             mgmt->u.action.u.wnm_timing_msr.action_code ==
4621                 WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE &&
4622             skb->len >= offsetofend(typeof(*mgmt), u.action.u.wnm_timing_msr))
4623                 return true;
4624
4625         return false;
4626 }
4627
4628 static inline bool ieee80211_is_ftm(struct sk_buff *skb)
4629 {
4630         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4631
4632         if (!ieee80211_is_public_action((void *)mgmt, skb->len))
4633                 return false;
4634
4635         if (mgmt->u.action.u.ftm.action_code ==
4636                 WLAN_PUB_ACTION_FTM_RESPONSE &&
4637             skb->len >= offsetofend(typeof(*mgmt), u.action.u.ftm))
4638                 return true;
4639
4640         return false;
4641 }
4642
4643 struct element {
4644         u8 id;
4645         u8 datalen;
4646         u8 data[];
4647 } __packed;
4648
4649 /* element iteration helpers */
4650 #define for_each_element(_elem, _data, _datalen)                        \
4651         for (_elem = (const struct element *)(_data);                   \
4652              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4653                 (int)sizeof(*_elem) &&                                  \
4654              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4655                 (int)sizeof(*_elem) + _elem->datalen;                   \
4656              _elem = (const struct element *)(_elem->data + _elem->datalen))
4657
4658 #define for_each_element_id(element, _id, data, datalen)                \
4659         for_each_element(element, data, datalen)                        \
4660                 if (element->id == (_id))
4661
4662 #define for_each_element_extid(element, extid, _data, _datalen)         \
4663         for_each_element(element, _data, _datalen)                      \
4664                 if (element->id == WLAN_EID_EXTENSION &&                \
4665                     element->datalen > 0 &&                             \
4666                     element->data[0] == (extid))
4667
4668 #define for_each_subelement(sub, element)                               \
4669         for_each_element(sub, (element)->data, (element)->datalen)
4670
4671 #define for_each_subelement_id(sub, id, element)                        \
4672         for_each_element_id(sub, id, (element)->data, (element)->datalen)
4673
4674 #define for_each_subelement_extid(sub, extid, element)                  \
4675         for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
4676
4677 /**
4678  * for_each_element_completed - determine if element parsing consumed all data
4679  * @element: element pointer after for_each_element() or friends
4680  * @data: same data pointer as passed to for_each_element() or friends
4681  * @datalen: same data length as passed to for_each_element() or friends
4682  *
4683  * This function returns %true if all the data was parsed or considered
4684  * while walking the elements. Only use this if your for_each_element()
4685  * loop cannot be broken out of, otherwise it always returns %false.
4686  *
4687  * If some data was malformed, this returns %false since the last parsed
4688  * element will not fill the whole remaining data.
4689  */
4690 static inline bool for_each_element_completed(const struct element *element,
4691                                               const void *data, size_t datalen)
4692 {
4693         return (const u8 *)element == (const u8 *)data + datalen;
4694 }
4695
4696 /*
4697  * RSNX Capabilities:
4698  * bits 0-3: Field length (n-1)
4699  */
4700 #define WLAN_RSNX_CAPA_PROTECTED_TWT BIT(4)
4701 #define WLAN_RSNX_CAPA_SAE_H2E BIT(5)
4702
4703 /*
4704  * reduced neighbor report, based on Draft P802.11ax_D6.1,
4705  * section 9.4.2.170 and accepted contributions.
4706  */
4707 #define IEEE80211_AP_INFO_TBTT_HDR_TYPE                         0x03
4708 #define IEEE80211_AP_INFO_TBTT_HDR_FILTERED                     0x04
4709 #define IEEE80211_AP_INFO_TBTT_HDR_COLOC                        0x08
4710 #define IEEE80211_AP_INFO_TBTT_HDR_COUNT                        0xF0
4711 #define IEEE80211_TBTT_INFO_TYPE_TBTT                           0
4712 #define IEEE80211_TBTT_INFO_TYPE_MLD                            1
4713
4714 #define IEEE80211_RNR_TBTT_PARAMS_OCT_RECOMMENDED               0x01
4715 #define IEEE80211_RNR_TBTT_PARAMS_SAME_SSID                     0x02
4716 #define IEEE80211_RNR_TBTT_PARAMS_MULTI_BSSID                   0x04
4717 #define IEEE80211_RNR_TBTT_PARAMS_TRANSMITTED_BSSID             0x08
4718 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_ESS                     0x10
4719 #define IEEE80211_RNR_TBTT_PARAMS_PROBE_ACTIVE                  0x20
4720 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_AP                      0x40
4721
4722 #define IEEE80211_RNR_TBTT_PARAMS_PSD_NO_LIMIT                  127
4723 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED                  -128
4724
4725 struct ieee80211_neighbor_ap_info {
4726         u8 tbtt_info_hdr;
4727         u8 tbtt_info_len;
4728         u8 op_class;
4729         u8 channel;
4730 } __packed;
4731
4732 enum ieee80211_range_params_max_total_ltf {
4733         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_4 = 0,
4734         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_8,
4735         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_16,
4736         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_UNSPECIFIED,
4737 };
4738
4739 /*
4740  * reduced neighbor report, based on Draft P802.11be_D3.0,
4741  * section 9.4.2.170.2.
4742  */
4743 struct ieee80211_rnr_mld_params {
4744         u8 mld_id;
4745         __le16 params;
4746 } __packed;
4747
4748 #define IEEE80211_RNR_MLD_PARAMS_LINK_ID                        0x000F
4749 #define IEEE80211_RNR_MLD_PARAMS_BSS_CHANGE_COUNT               0x0FF0
4750 #define IEEE80211_RNR_MLD_PARAMS_UPDATES_INCLUDED               0x1000
4751 #define IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK                  0x2000
4752
4753 /* Format of the TBTT information element if it has 7, 8 or 9 bytes */
4754 struct ieee80211_tbtt_info_7_8_9 {
4755         u8 tbtt_offset;
4756         u8 bssid[ETH_ALEN];
4757
4758         /* The following element is optional, structure may not grow */
4759         u8 bss_params;
4760         s8 psd_20;
4761 } __packed;
4762
4763 /* Format of the TBTT information element if it has >= 11 bytes */
4764 struct ieee80211_tbtt_info_ge_11 {
4765         u8 tbtt_offset;
4766         u8 bssid[ETH_ALEN];
4767         __le32 short_ssid;
4768
4769         /* The following elements are optional, structure may grow */
4770         u8 bss_params;
4771         s8 psd_20;
4772         struct ieee80211_rnr_mld_params mld_params;
4773 } __packed;
4774
4775 /* multi-link device */
4776 #define IEEE80211_MLD_MAX_NUM_LINKS     15
4777
4778 #define IEEE80211_ML_CONTROL_TYPE                       0x0007
4779 #define IEEE80211_ML_CONTROL_TYPE_BASIC                 0
4780 #define IEEE80211_ML_CONTROL_TYPE_PREQ                  1
4781 #define IEEE80211_ML_CONTROL_TYPE_RECONF                2
4782 #define IEEE80211_ML_CONTROL_TYPE_TDLS                  3
4783 #define IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS           4
4784 #define IEEE80211_ML_CONTROL_PRESENCE_MASK              0xfff0
4785
4786 struct ieee80211_multi_link_elem {
4787         __le16 control;
4788         u8 variable[];
4789 } __packed;
4790
4791 #define IEEE80211_MLC_BASIC_PRES_LINK_ID                0x0010
4792 #define IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT       0x0020
4793 #define IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY         0x0040
4794 #define IEEE80211_MLC_BASIC_PRES_EML_CAPA               0x0080
4795 #define IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP            0x0100
4796 #define IEEE80211_MLC_BASIC_PRES_MLD_ID                 0x0200
4797
4798 #define IEEE80211_MED_SYNC_DELAY_DURATION               0x00ff
4799 #define IEEE80211_MED_SYNC_DELAY_SYNC_OFDM_ED_THRESH    0x0f00
4800 #define IEEE80211_MED_SYNC_DELAY_SYNC_MAX_NUM_TXOPS     0xf000
4801
4802 /*
4803  * Described in P802.11be_D3.0
4804  * dot11MSDTimerDuration should default to 5484 (i.e. 171.375)
4805  * dot11MSDOFDMEDthreshold defaults to -72 (i.e. 0)
4806  * dot11MSDTXOPMAX defaults to 1
4807  */
4808 #define IEEE80211_MED_SYNC_DELAY_DEFAULT                0x10ac
4809
4810 #define IEEE80211_EML_CAP_EMLSR_SUPP                    0x0001
4811 #define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY           0x000e
4812 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_0US              0
4813 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US             1
4814 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_64US             2
4815 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_128US            3
4816 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US            4
4817 #define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY        0x0070
4818 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_0US           0
4819 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_16US          1
4820 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_32US          2
4821 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US          3
4822 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_128US         4
4823 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US         5
4824 #define IEEE80211_EML_CAP_EMLMR_SUPPORT                 0x0080
4825 #define IEEE80211_EML_CAP_EMLMR_DELAY                   0x0700
4826 #define  IEEE80211_EML_CAP_EMLMR_DELAY_0US                      0
4827 #define  IEEE80211_EML_CAP_EMLMR_DELAY_32US                     1
4828 #define  IEEE80211_EML_CAP_EMLMR_DELAY_64US                     2
4829 #define  IEEE80211_EML_CAP_EMLMR_DELAY_128US                    3
4830 #define  IEEE80211_EML_CAP_EMLMR_DELAY_256US                    4
4831 #define IEEE80211_EML_CAP_TRANSITION_TIMEOUT            0x7800
4832 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_0                 0
4833 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128US             1
4834 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_256US             2
4835 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_512US             3
4836 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_1TU               4
4837 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_2TU               5
4838 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_4TU               6
4839 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_8TU               7
4840 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_16TU              8
4841 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_32TU              9
4842 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_64TU              10
4843 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU             11
4844
4845 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS            0x000f
4846 #define IEEE80211_MLD_CAP_OP_SRS_SUPPORT                0x0010
4847 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP   0x0060
4848 #define IEEE80211_MLD_CAP_OP_FREQ_SEP_TYPE_IND          0x0f80
4849 #define IEEE80211_MLD_CAP_OP_AAR_SUPPORT                0x1000
4850
4851 struct ieee80211_mle_basic_common_info {
4852         u8 len;
4853         u8 mld_mac_addr[ETH_ALEN];
4854         u8 variable[];
4855 } __packed;
4856
4857 #define IEEE80211_MLC_PREQ_PRES_MLD_ID                  0x0010
4858
4859 struct ieee80211_mle_preq_common_info {
4860         u8 len;
4861         u8 variable[];
4862 } __packed;
4863
4864 #define IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR          0x0010
4865
4866 /* no fixed fields in RECONF */
4867
4868 struct ieee80211_mle_tdls_common_info {
4869         u8 len;
4870         u8 ap_mld_mac_addr[ETH_ALEN];
4871 } __packed;
4872
4873 #define IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR  0x0010
4874
4875 /* no fixed fields in PRIO_ACCESS */
4876
4877 /**
4878  * ieee80211_mle_common_size - check multi-link element common size
4879  * @data: multi-link element, must already be checked for size using
4880  *      ieee80211_mle_size_ok()
4881  */
4882 static inline u8 ieee80211_mle_common_size(const u8 *data)
4883 {
4884         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4885         u16 control = le16_to_cpu(mle->control);
4886         u8 common = 0;
4887
4888         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
4889         case IEEE80211_ML_CONTROL_TYPE_BASIC:
4890         case IEEE80211_ML_CONTROL_TYPE_PREQ:
4891         case IEEE80211_ML_CONTROL_TYPE_TDLS:
4892         case IEEE80211_ML_CONTROL_TYPE_RECONF:
4893                 /*
4894                  * The length is the first octet pointed by mle->variable so no
4895                  * need to add anything
4896                  */
4897                 break;
4898         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
4899                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
4900                         common += ETH_ALEN;
4901                 return common;
4902         default:
4903                 WARN_ON(1);
4904                 return 0;
4905         }
4906
4907         return sizeof(*mle) + common + mle->variable[0];
4908 }
4909
4910 /**
4911  * ieee80211_mle_get_bss_param_ch_cnt - returns the BSS parameter change count
4912  * @mle: the basic multi link element
4913  *
4914  * The element is assumed to be of the correct type (BASIC) and big enough,
4915  * this must be checked using ieee80211_mle_type_ok().
4916  *
4917  * If the BSS parameter change count value can't be found (the presence bit
4918  * for it is clear), 0 will be returned.
4919  */
4920 static inline u8
4921 ieee80211_mle_get_bss_param_ch_cnt(const struct ieee80211_multi_link_elem *mle)
4922 {
4923         u16 control = le16_to_cpu(mle->control);
4924         const u8 *common = mle->variable;
4925
4926         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4927         common += sizeof(struct ieee80211_mle_basic_common_info);
4928
4929         if (!(control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT))
4930                 return 0;
4931
4932         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4933                 common += 1;
4934
4935         return *common;
4936 }
4937
4938 /**
4939  * ieee80211_mle_get_eml_med_sync_delay - returns the medium sync delay
4940  * @data: pointer to the multi link EHT IE
4941  *
4942  * The element is assumed to be of the correct type (BASIC) and big enough,
4943  * this must be checked using ieee80211_mle_type_ok().
4944  *
4945  * If the medium synchronization is not present, then the default value is
4946  * returned.
4947  */
4948 static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
4949 {
4950         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4951         u16 control = le16_to_cpu(mle->control);
4952         const u8 *common = mle->variable;
4953
4954         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4955         common += sizeof(struct ieee80211_mle_basic_common_info);
4956
4957         if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
4958                 return IEEE80211_MED_SYNC_DELAY_DEFAULT;
4959
4960         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4961                 common += 1;
4962         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4963                 common += 1;
4964
4965         return get_unaligned_le16(common);
4966 }
4967
4968 /**
4969  * ieee80211_mle_get_eml_cap - returns the EML capability
4970  * @data: pointer to the multi link EHT IE
4971  *
4972  * The element is assumed to be of the correct type (BASIC) and big enough,
4973  * this must be checked using ieee80211_mle_type_ok().
4974  *
4975  * If the EML capability is not present, 0 will be returned.
4976  */
4977 static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
4978 {
4979         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4980         u16 control = le16_to_cpu(mle->control);
4981         const u8 *common = mle->variable;
4982
4983         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4984         common += sizeof(struct ieee80211_mle_basic_common_info);
4985
4986         if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
4987                 return 0;
4988
4989         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4990                 common += 1;
4991         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4992                 common += 1;
4993         if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
4994                 common += 2;
4995
4996         return get_unaligned_le16(common);
4997 }
4998
4999 /**
5000  * ieee80211_mle_size_ok - validate multi-link element size
5001  * @data: pointer to the element data
5002  * @len: length of the containing element
5003  */
5004 static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
5005 {
5006         const struct ieee80211_multi_link_elem *mle = (const void *)data;
5007         u8 fixed = sizeof(*mle);
5008         u8 common = 0;
5009         bool check_common_len = false;
5010         u16 control;
5011
5012         if (len < fixed)
5013                 return false;
5014
5015         control = le16_to_cpu(mle->control);
5016
5017         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
5018         case IEEE80211_ML_CONTROL_TYPE_BASIC:
5019                 common += sizeof(struct ieee80211_mle_basic_common_info);
5020                 check_common_len = true;
5021                 if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
5022                         common += 1;
5023                 if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
5024                         common += 1;
5025                 if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
5026                         common += 2;
5027                 if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
5028                         common += 2;
5029                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
5030                         common += 2;
5031                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
5032                         common += 1;
5033                 break;
5034         case IEEE80211_ML_CONTROL_TYPE_PREQ:
5035                 common += sizeof(struct ieee80211_mle_preq_common_info);
5036                 if (control & IEEE80211_MLC_PREQ_PRES_MLD_ID)
5037                         common += 1;
5038                 check_common_len = true;
5039                 break;
5040         case IEEE80211_ML_CONTROL_TYPE_RECONF:
5041                 if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
5042                         common += ETH_ALEN;
5043                 break;
5044         case IEEE80211_ML_CONTROL_TYPE_TDLS:
5045                 common += sizeof(struct ieee80211_mle_tdls_common_info);
5046                 check_common_len = true;
5047                 break;
5048         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
5049                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
5050                         common += ETH_ALEN;
5051                 break;
5052         default:
5053                 /* we don't know this type */
5054                 return true;
5055         }
5056
5057         if (len < fixed + common)
5058                 return false;
5059
5060         if (!check_common_len)
5061                 return true;
5062
5063         /* if present, common length is the first octet there */
5064         return mle->variable[0] >= common;
5065 }
5066
5067 /**
5068  * ieee80211_mle_type_ok - validate multi-link element type and size
5069  * @data: pointer to the element data
5070  * @type: expected type of the element
5071  * @len: length of the containing element
5072  */
5073 static inline bool ieee80211_mle_type_ok(const u8 *data, u8 type, size_t len)
5074 {
5075         const struct ieee80211_multi_link_elem *mle = (const void *)data;
5076         u16 control;
5077
5078         if (!ieee80211_mle_size_ok(data, len))
5079                 return false;
5080
5081         control = le16_to_cpu(mle->control);
5082
5083         if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) == type)
5084                 return true;
5085
5086         return false;
5087 }
5088
5089 enum ieee80211_mle_subelems {
5090         IEEE80211_MLE_SUBELEM_PER_STA_PROFILE           = 0,
5091         IEEE80211_MLE_SUBELEM_FRAGMENT                  = 254,
5092 };
5093
5094 #define IEEE80211_MLE_STA_CONTROL_LINK_ID                       0x000f
5095 #define IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE              0x0010
5096 #define IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT          0x0020
5097 #define IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT            0x0040
5098 #define IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT              0x0080
5099 #define IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT             0x0100
5100 #define IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT        0x0200
5101 #define IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE              0x0400
5102 #define IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT  0x0800
5103
5104 struct ieee80211_mle_per_sta_profile {
5105         __le16 control;
5106         u8 sta_info_len;
5107         u8 variable[];
5108 } __packed;
5109
5110 /**
5111  * ieee80211_mle_basic_sta_prof_size_ok - validate basic multi-link element sta
5112  *      profile size
5113  * @data: pointer to the sub element data
5114  * @len: length of the containing sub element
5115  */
5116 static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
5117                                                         size_t len)
5118 {
5119         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
5120         u16 control;
5121         u8 fixed = sizeof(*prof);
5122         u8 info_len = 1;
5123
5124         if (len < fixed)
5125                 return false;
5126
5127         control = le16_to_cpu(prof->control);
5128
5129         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
5130                 info_len += 6;
5131         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
5132                 info_len += 2;
5133         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
5134                 info_len += 8;
5135         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
5136                 info_len += 2;
5137         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
5138             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
5139                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
5140                         info_len += 2;
5141                 else
5142                         info_len += 1;
5143         }
5144         if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
5145                 info_len += 1;
5146
5147         return prof->sta_info_len >= info_len &&
5148                fixed + prof->sta_info_len <= len;
5149 }
5150
5151 /**
5152  * ieee80211_mle_basic_sta_prof_bss_param_ch_cnt - get per-STA profile BSS
5153  *      parameter change count
5154  * @prof: the per-STA profile, having been checked with
5155  *      ieee80211_mle_basic_sta_prof_size_ok() for the correct length
5156  *
5157  * Return: The BSS parameter change count value if present, 0 otherwise.
5158  */
5159 static inline u8
5160 ieee80211_mle_basic_sta_prof_bss_param_ch_cnt(const struct ieee80211_mle_per_sta_profile *prof)
5161 {
5162         u16 control = le16_to_cpu(prof->control);
5163         const u8 *pos = prof->variable;
5164
5165         if (!(control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT))
5166                 return 0;
5167
5168         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
5169                 pos += 6;
5170         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
5171                 pos += 2;
5172         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
5173                 pos += 8;
5174         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
5175                 pos += 2;
5176         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
5177             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
5178                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
5179                         pos += 2;
5180                 else
5181                         pos += 1;
5182         }
5183
5184         return *pos;
5185 }
5186
5187 #define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID                        0x000f
5188 #define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE               0x0010
5189 #define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT           0x0020
5190 #define IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT           0x0040
5191 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_UPDATE_TYPE          0x0780
5192 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT       0x0800
5193
5194 /**
5195  * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
5196  *      element sta profile size.
5197  * @data: pointer to the sub element data
5198  * @len: length of the containing sub element
5199  */
5200 static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
5201                                                          size_t len)
5202 {
5203         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
5204         u16 control;
5205         u8 fixed = sizeof(*prof);
5206         u8 info_len = 1;
5207
5208         if (len < fixed)
5209                 return false;
5210
5211         control = le16_to_cpu(prof->control);
5212
5213         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
5214                 info_len += ETH_ALEN;
5215         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT)
5216                 info_len += 2;
5217         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT)
5218                 info_len += 2;
5219
5220         return prof->sta_info_len >= info_len &&
5221                fixed + prof->sta_info_len - 1 <= len;
5222 }
5223
5224 static inline bool ieee80211_tid_to_link_map_size_ok(const u8 *data, size_t len)
5225 {
5226         const struct ieee80211_ttlm_elem *t2l = (const void *)data;
5227         u8 control, fixed = sizeof(*t2l), elem_len = 0;
5228
5229         if (len < fixed)
5230                 return false;
5231
5232         control = t2l->control;
5233
5234         if (control & IEEE80211_TTLM_CONTROL_SWITCH_TIME_PRESENT)
5235                 elem_len += 2;
5236         if (control & IEEE80211_TTLM_CONTROL_EXPECTED_DUR_PRESENT)
5237                 elem_len += 3;
5238
5239         if (!(control & IEEE80211_TTLM_CONTROL_DEF_LINK_MAP)) {
5240                 u8 bm_size;
5241
5242                 elem_len += 1;
5243                 if (len < fixed + elem_len)
5244                         return false;
5245
5246                 if (control & IEEE80211_TTLM_CONTROL_LINK_MAP_SIZE)
5247                         bm_size = 1;
5248                 else
5249                         bm_size = 2;
5250
5251                 elem_len += hweight8(t2l->optional[0]) * bm_size;
5252         }
5253
5254         return len >= fixed + elem_len;
5255 }
5256
5257 #define for_each_mle_subelement(_elem, _data, _len)                     \
5258         if (ieee80211_mle_size_ok(_data, _len))                         \
5259                 for_each_element(_elem,                                 \
5260                                  _data + ieee80211_mle_common_size(_data),\
5261                                  _len - ieee80211_mle_common_size(_data))
5262
5263 #endif /* LINUX_IEEE80211_H */