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 11ah 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_TODS         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 struct ieee80211_hdr {
 311         __le16 frame_control;
 312         __le16 duration_id;
 313         struct_group(addrs,
 314                 u8 addr1[ETH_ALEN];
 315                 u8 addr2[ETH_ALEN];
 316                 u8 addr3[ETH_ALEN];
 317         );
 318         __le16 seq_ctrl;
 319         u8 addr4[ETH_ALEN];
 320 } __packed __aligned(2);
 321
 322 struct ieee80211_hdr_3addr {
 323         __le16 frame_control;
 324         __le16 duration_id;
 325         u8 addr1[ETH_ALEN];
 326         u8 addr2[ETH_ALEN];
 327         u8 addr3[ETH_ALEN];
 328         __le16 seq_ctrl;
 329 } __packed __aligned(2);
 330
 331 struct ieee80211_qos_hdr {
 332         __le16 frame_control;
 333         __le16 duration_id;
 334         u8 addr1[ETH_ALEN];
 335         u8 addr2[ETH_ALEN];
 336         u8 addr3[ETH_ALEN];
 337         __le16 seq_ctrl;
 338         __le16 qos_ctrl;
 339 } __packed __aligned(2);
 340
 341 struct ieee80211_qos_hdr_4addr {
 342         __le16 frame_control;
 343         __le16 duration_id;
 344         u8 addr1[ETH_ALEN];
 345         u8 addr2[ETH_ALEN];
 346         u8 addr3[ETH_ALEN];
 347         __le16 seq_ctrl;
 348         u8 addr4[ETH_ALEN];
 349         __le16 qos_ctrl;
 350 } __packed __aligned(2);
 351
 352 struct ieee80211_trigger {
 353         __le16 frame_control;
 354         __le16 duration;
 355         u8 ra[ETH_ALEN];
 356         u8 ta[ETH_ALEN];
 357         __le64 common_info;
 358         u8 variable[];
 359 } __packed __aligned(2);
 360
 361 /**
 362  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 363  * @fc: frame control bytes in little-endian byteorder
 364  */
 365 static inline bool ieee80211_has_tods(__le16 fc)
 366 {
 367         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 368 }
 369
 370 /**
 371  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 372  * @fc: frame control bytes in little-endian byteorder
 373  */
 374 static inline bool ieee80211_has_fromds(__le16 fc)
 375 {
 376         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 377 }
 378
 379 /**
 380  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 381  * @fc: frame control bytes in little-endian byteorder
 382  */
 383 static inline bool ieee80211_has_a4(__le16 fc)
 384 {
 385         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 386         return (fc & tmp) == tmp;
 387 }
 388
 389 /**
 390  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 391  * @fc: frame control bytes in little-endian byteorder
 392  */
 393 static inline bool ieee80211_has_morefrags(__le16 fc)
 394 {
 395         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 396 }
 397
 398 /**
 399  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 400  * @fc: frame control bytes in little-endian byteorder
 401  */
 402 static inline bool ieee80211_has_retry(__le16 fc)
 403 {
 404         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 405 }
 406
 407 /**
 408  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 409  * @fc: frame control bytes in little-endian byteorder
 410  */
 411 static inline bool ieee80211_has_pm(__le16 fc)
 412 {
 413         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 414 }
 415
 416 /**
 417  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 418  * @fc: frame control bytes in little-endian byteorder
 419  */
 420 static inline bool ieee80211_has_moredata(__le16 fc)
 421 {
 422         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 423 }
 424
 425 /**
 426  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 427  * @fc: frame control bytes in little-endian byteorder
 428  */
 429 static inline bool ieee80211_has_protected(__le16 fc)
 430 {
 431         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 432 }
 433
 434 /**
 435  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 436  * @fc: frame control bytes in little-endian byteorder
 437  */
 438 static inline bool ieee80211_has_order(__le16 fc)
 439 {
 440         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 441 }
 442
 443 /**
 444  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 445  * @fc: frame control bytes in little-endian byteorder
 446  */
 447 static inline bool ieee80211_is_mgmt(__le16 fc)
 448 {
 449         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 450                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 451 }
 452
 453 /**
 454  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 455  * @fc: frame control bytes in little-endian byteorder
 456  */
 457 static inline bool ieee80211_is_ctl(__le16 fc)
 458 {
 459         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 460                cpu_to_le16(IEEE80211_FTYPE_CTL);
 461 }
 462
 463 /**
 464  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 465  * @fc: frame control bytes in little-endian byteorder
 466  */
 467 static inline bool ieee80211_is_data(__le16 fc)
 468 {
 469         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 470                cpu_to_le16(IEEE80211_FTYPE_DATA);
 471 }
 472
 473 /**
 474  * ieee80211_is_ext - check if type is IEEE80211_FTYPE_EXT
 475  * @fc: frame control bytes in little-endian byteorder
 476  */
 477 static inline bool ieee80211_is_ext(__le16 fc)
 478 {
 479         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 480                cpu_to_le16(IEEE80211_FTYPE_EXT);
 481 }
 482
 483
 484 /**
 485  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 486  * @fc: frame control bytes in little-endian byteorder
 487  */
 488 static inline bool ieee80211_is_data_qos(__le16 fc)
 489 {
 490         /*
 491          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 492          * to check the one bit
 493          */
 494         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 495                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 496 }
 497
 498 /**
 499  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 500  * @fc: frame control bytes in little-endian byteorder
 501  */
 502 static inline bool ieee80211_is_data_present(__le16 fc)
 503 {
 504         /*
 505          * mask with 0x40 and test that that bit is clear to only return true
 506          * for the data-containing substypes.
 507          */
 508         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 509                cpu_to_le16(IEEE80211_FTYPE_DATA);
 510 }
 511
 512 /**
 513  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 514  * @fc: frame control bytes in little-endian byteorder
 515  */
 516 static inline bool ieee80211_is_assoc_req(__le16 fc)
 517 {
 518         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 519                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 520 }
 521
 522 /**
 523  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 524  * @fc: frame control bytes in little-endian byteorder
 525  */
 526 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 527 {
 528         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 529                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 530 }
 531
 532 /**
 533  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 534  * @fc: frame control bytes in little-endian byteorder
 535  */
 536 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 537 {
 538         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 539                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 540 }
 541
 542 /**
 543  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 544  * @fc: frame control bytes in little-endian byteorder
 545  */
 546 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 547 {
 548         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 549                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 550 }
 551
 552 /**
 553  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 554  * @fc: frame control bytes in little-endian byteorder
 555  */
 556 static inline bool ieee80211_is_probe_req(__le16 fc)
 557 {
 558         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 559                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 560 }
 561
 562 /**
 563  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 564  * @fc: frame control bytes in little-endian byteorder
 565  */
 566 static inline bool ieee80211_is_probe_resp(__le16 fc)
 567 {
 568         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 569                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 570 }
 571
 572 /**
 573  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 574  * @fc: frame control bytes in little-endian byteorder
 575  */
 576 static inline bool ieee80211_is_beacon(__le16 fc)
 577 {
 578         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 579                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 580 }
 581
 582 /**
 583  * ieee80211_is_s1g_beacon - check if IEEE80211_FTYPE_EXT &&
 584  * IEEE80211_STYPE_S1G_BEACON
 585  * @fc: frame control bytes in little-endian byteorder
 586  */
 587 static inline bool ieee80211_is_s1g_beacon(__le16 fc)
 588 {
 589         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE |
 590                                  IEEE80211_FCTL_STYPE)) ==
 591                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON);
 592 }
 593
 594 /**
 595  * ieee80211_next_tbtt_present - check if IEEE80211_FTYPE_EXT &&
 596  * IEEE80211_STYPE_S1G_BEACON && IEEE80211_S1G_BCN_NEXT_TBTT
 597  * @fc: frame control bytes in little-endian byteorder
 598  */
 599 static inline bool ieee80211_next_tbtt_present(__le16 fc)
 600 {
 601         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 602                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON) &&
 603                fc & cpu_to_le16(IEEE80211_S1G_BCN_NEXT_TBTT);
 604 }
 605
 606 /**
 607  * ieee80211_is_s1g_short_beacon - check if next tbtt present bit is set. Only
 608  * true for S1G beacons when they're short.
 609  * @fc: frame control bytes in little-endian byteorder
 610  */
 611 static inline bool ieee80211_is_s1g_short_beacon(__le16 fc)
 612 {
 613         return ieee80211_is_s1g_beacon(fc) && ieee80211_next_tbtt_present(fc);
 614 }
 615
 616 /**
 617  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 618  * @fc: frame control bytes in little-endian byteorder
 619  */
 620 static inline bool ieee80211_is_atim(__le16 fc)
 621 {
 622         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 623                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 624 }
 625
 626 /**
 627  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 628  * @fc: frame control bytes in little-endian byteorder
 629  */
 630 static inline bool ieee80211_is_disassoc(__le16 fc)
 631 {
 632         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 633                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 634 }
 635
 636 /**
 637  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 638  * @fc: frame control bytes in little-endian byteorder
 639  */
 640 static inline bool ieee80211_is_auth(__le16 fc)
 641 {
 642         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 643                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 644 }
 645
 646 /**
 647  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 648  * @fc: frame control bytes in little-endian byteorder
 649  */
 650 static inline bool ieee80211_is_deauth(__le16 fc)
 651 {
 652         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 653                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 654 }
 655
 656 /**
 657  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 658  * @fc: frame control bytes in little-endian byteorder
 659  */
 660 static inline bool ieee80211_is_action(__le16 fc)
 661 {
 662         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 663                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 664 }
 665
 666 /**
 667  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 668  * @fc: frame control bytes in little-endian byteorder
 669  */
 670 static inline bool ieee80211_is_back_req(__le16 fc)
 671 {
 672         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 673                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 674 }
 675
 676 /**
 677  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 678  * @fc: frame control bytes in little-endian byteorder
 679  */
 680 static inline bool ieee80211_is_back(__le16 fc)
 681 {
 682         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 683                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 684 }
 685
 686 /**
 687  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 688  * @fc: frame control bytes in little-endian byteorder
 689  */
 690 static inline bool ieee80211_is_pspoll(__le16 fc)
 691 {
 692         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 693                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 694 }
 695
 696 /**
 697  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 698  * @fc: frame control bytes in little-endian byteorder
 699  */
 700 static inline bool ieee80211_is_rts(__le16 fc)
 701 {
 702         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 703                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 704 }
 705
 706 /**
 707  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 708  * @fc: frame control bytes in little-endian byteorder
 709  */
 710 static inline bool ieee80211_is_cts(__le16 fc)
 711 {
 712         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 713                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 714 }
 715
 716 /**
 717  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 718  * @fc: frame control bytes in little-endian byteorder
 719  */
 720 static inline bool ieee80211_is_ack(__le16 fc)
 721 {
 722         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 723                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 724 }
 725
 726 /**
 727  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 728  * @fc: frame control bytes in little-endian byteorder
 729  */
 730 static inline bool ieee80211_is_cfend(__le16 fc)
 731 {
 732         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 733                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 734 }
 735
 736 /**
 737  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 738  * @fc: frame control bytes in little-endian byteorder
 739  */
 740 static inline bool ieee80211_is_cfendack(__le16 fc)
 741 {
 742         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 743                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 744 }
 745
 746 /**
 747  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 748  * @fc: frame control bytes in little-endian byteorder
 749  */
 750 static inline bool ieee80211_is_nullfunc(__le16 fc)
 751 {
 752         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 753                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 754 }
 755
 756 /**
 757  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 758  * @fc: frame control bytes in little-endian byteorder
 759  */
 760 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 761 {
 762         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 763                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 764 }
 765
 766 /**
 767  * ieee80211_is_trigger - check if frame is trigger frame
 768  * @fc: frame control field in little-endian byteorder
 769  */
 770 static inline bool ieee80211_is_trigger(__le16 fc)
 771 {
 772         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 773                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_TRIGGER);
 774 }
 775
 776 /**
 777  * ieee80211_is_any_nullfunc - check if frame is regular or QoS nullfunc frame
 778  * @fc: frame control bytes in little-endian byteorder
 779  */
 780 static inline bool ieee80211_is_any_nullfunc(__le16 fc)
 781 {
 782         return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
 783 }
 784
 785 /**
 786  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 787  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 788  */
 789 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 790 {
 791         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 792 }
 793
 794 /**
 795  * ieee80211_is_frag - check if a frame is a fragment
 796  * @hdr: 802.11 header of the frame
 797  */
 798 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 799 {
 800         return ieee80211_has_morefrags(hdr->frame_control) ||
 801                hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 802 }
 803
 804 struct ieee80211s_hdr {
 805         u8 flags;
 806         u8 ttl;
 807         __le32 seqnum;
 808         u8 eaddr1[ETH_ALEN];
 809         u8 eaddr2[ETH_ALEN];
 810 } __packed __aligned(2);
 811
 812 /* Mesh flags */
 813 #define MESH_FLAGS_AE_A4        0x1
 814 #define MESH_FLAGS_AE_A5_A6     0x2
 815 #define MESH_FLAGS_AE           0x3
 816 #define MESH_FLAGS_PS_DEEP      0x4
 817
 818 /**
 819  * enum ieee80211_preq_flags - mesh PREQ element flags
 820  *
 821  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 822  */
 823 enum ieee80211_preq_flags {
 824         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 825 };
 826
 827 /**
 828  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 829  *
 830  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 831  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 832  */
 833 enum ieee80211_preq_target_flags {
 834         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 835         IEEE80211_PREQ_USN_FLAG = 1<<2,
 836 };
 837
 838 /**
 839  * struct ieee80211_quiet_ie - Quiet element
 840  * @count: Quiet Count
 841  * @period: Quiet Period
 842  * @duration: Quiet Duration
 843  * @offset: Quiet Offset
 844  *
 845  * This structure represents the payload of the "Quiet element" as
 846  * described in IEEE Std 802.11-2020 section 9.4.2.22.
 847  */
 848 struct ieee80211_quiet_ie {
 849         u8 count;
 850         u8 period;
 851         __le16 duration;
 852         __le16 offset;
 853 } __packed;
 854
 855 /**
 856  * struct ieee80211_msrment_ie - Measurement element
 857  * @token: Measurement Token
 858  * @mode: Measurement Report Mode
 859  * @type: Measurement Type
 860  * @request: Measurement Request or Measurement Report
 861  *
 862  * This structure represents the payload of both the "Measurement
 863  * Request element" and the "Measurement Report element" as described
 864  * in IEEE Std 802.11-2020 sections 9.4.2.20 and 9.4.2.21.
 865  */
 866 struct ieee80211_msrment_ie {
 867         u8 token;
 868         u8 mode;
 869         u8 type;
 870         u8 request[];
 871 } __packed;
 872
 873 /**
 874  * struct ieee80211_channel_sw_ie - Channel Switch Announcement element
 875  * @mode: Channel Switch Mode
 876  * @new_ch_num: New Channel Number
 877  * @count: Channel Switch Count
 878  *
 879  * This structure represents the payload of the "Channel Switch
 880  * Announcement element" as described in IEEE Std 802.11-2020 section
 881  * 9.4.2.18.
 882  */
 883 struct ieee80211_channel_sw_ie {
 884         u8 mode;
 885         u8 new_ch_num;
 886         u8 count;
 887 } __packed;
 888
 889 /**
 890  * struct ieee80211_ext_chansw_ie - Extended Channel Switch Announcement element
 891  * @mode: Channel Switch Mode
 892  * @new_operating_class: New Operating Class
 893  * @new_ch_num: New Channel Number
 894  * @count: Channel Switch Count
 895  *
 896  * This structure represents the "Extended Channel Switch Announcement
 897  * element" as described in IEEE Std 802.11-2020 section 9.4.2.52.
 898  */
 899 struct ieee80211_ext_chansw_ie {
 900         u8 mode;
 901         u8 new_operating_class;
 902         u8 new_ch_num;
 903         u8 count;
 904 } __packed;
 905
 906 /**
 907  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 908  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 909  *      values here
 910  * This structure represents the "Secondary Channel Offset element"
 911  */
 912 struct ieee80211_sec_chan_offs_ie {
 913         u8 sec_chan_offs;
 914 } __packed;
 915
 916 /**
 917  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 918  * @mesh_ttl: Time To Live
 919  * @mesh_flags: Flags
 920  * @mesh_reason: Reason Code
 921  * @mesh_pre_value: Precedence Value
 922  *
 923  * This structure represents the payload of the "Mesh Channel Switch
 924  * Parameters element" as described in IEEE Std 802.11-2020 section
 925  * 9.4.2.102.
 926  */
 927 struct ieee80211_mesh_chansw_params_ie {
 928         u8 mesh_ttl;
 929         u8 mesh_flags;
 930         __le16 mesh_reason;
 931         __le16 mesh_pre_value;
 932 } __packed;
 933
 934 /**
 935  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 936  * @new_channel_width: New Channel Width
 937  * @new_center_freq_seg0: New Channel Center Frequency Segment 0
 938  * @new_center_freq_seg1: New Channel Center Frequency Segment 1
 939  *
 940  * This structure represents the payload of the "Wide Bandwidth
 941  * Channel Switch element" as described in IEEE Std 802.11-2020
 942  * section 9.4.2.160.
 943  */
 944 struct ieee80211_wide_bw_chansw_ie {
 945         u8 new_channel_width;
 946         u8 new_center_freq_seg0, new_center_freq_seg1;
 947 } __packed;
 948
 949 /**
 950  * struct ieee80211_tim_ie - Traffic Indication Map information element
 951  * @dtim_count: DTIM Count
 952  * @dtim_period: DTIM Period
 953  * @bitmap_ctrl: Bitmap Control
 954  * @virtual_map: Partial Virtual Bitmap
 955  *
 956  * This structure represents the payload of the "TIM element" as
 957  * described in IEEE Std 802.11-2020 section 9.4.2.5.
 958  */
 959 struct ieee80211_tim_ie {
 960         u8 dtim_count;
 961         u8 dtim_period;
 962         u8 bitmap_ctrl;
 963         /* variable size: 1 - 251 bytes */
 964         u8 virtual_map[1];
 965 } __packed;
 966
 967 /**
 968  * struct ieee80211_meshconf_ie - Mesh Configuration element
 969  * @meshconf_psel: Active Path Selection Protocol Identifier
 970  * @meshconf_pmetric: Active Path Selection Metric Identifier
 971  * @meshconf_congest: Congestion Control Mode Identifier
 972  * @meshconf_synch: Synchronization Method Identifier
 973  * @meshconf_auth: Authentication Protocol Identifier
 974  * @meshconf_form: Mesh Formation Info
 975  * @meshconf_cap: Mesh Capability (see &enum mesh_config_capab_flags)
 976  *
 977  * This structure represents the payload of the "Mesh Configuration
 978  * element" as described in IEEE Std 802.11-2020 section 9.4.2.97.
 979  */
 980 struct ieee80211_meshconf_ie {
 981         u8 meshconf_psel;
 982         u8 meshconf_pmetric;
 983         u8 meshconf_congest;
 984         u8 meshconf_synch;
 985         u8 meshconf_auth;
 986         u8 meshconf_form;
 987         u8 meshconf_cap;
 988 } __packed;
 989
 990 /**
 991  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
 992  *
 993  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
 994  *      additional mesh peerings with other mesh STAs
 995  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
 996  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
 997  *      is ongoing
 998  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
 999  *      neighbors in deep sleep mode
1000  *
1001  * Enumerates the "Mesh Capability" as described in IEEE Std
1002  * 802.11-2020 section 9.4.2.97.7.
1003  */
1004 enum mesh_config_capab_flags {
1005         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
1006         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
1007         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
1008         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
1009 };
1010
1011 #define IEEE80211_MESHCONF_FORM_CONNECTED_TO_GATE 0x1
1012
1013 /*
1014  * mesh channel switch parameters element's flag indicator
1015  *
1016  */
1017 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
1018 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
1019 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
1020
1021 /**
1022  * struct ieee80211_rann_ie - RANN (root announcement) element
1023  * @rann_flags: Flags
1024  * @rann_hopcount: Hop Count
1025  * @rann_ttl: Element TTL
1026  * @rann_addr: Root Mesh STA Address
1027  * @rann_seq: HWMP Sequence Number
1028  * @rann_interval: Interval
1029  * @rann_metric: Metric
1030  *
1031  * This structure represents the payload of the "RANN element" as
1032  * described in IEEE Std 802.11-2020 section 9.4.2.111.
1033  */
1034 struct ieee80211_rann_ie {
1035         u8 rann_flags;
1036         u8 rann_hopcount;
1037         u8 rann_ttl;
1038         u8 rann_addr[ETH_ALEN];
1039         __le32 rann_seq;
1040         __le32 rann_interval;
1041         __le32 rann_metric;
1042 } __packed;
1043
1044 enum ieee80211_rann_flags {
1045         RANN_FLAG_IS_GATE = 1 << 0,
1046 };
1047
1048 enum ieee80211_ht_chanwidth_values {
1049         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
1050         IEEE80211_HT_CHANWIDTH_ANY = 1,
1051 };
1052
1053 /**
1054  * enum ieee80211_vht_opmode_bits - VHT operating mode field bits
1055  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
1056  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
1057  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
1058  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
1059  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
1060  * @IEEE80211_OPMODE_NOTIF_BW_160_80P80: 160 / 80+80 MHz indicator flag
1061  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
1062  *      (the NSS value is the value of this field + 1)
1063  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
1064  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
1065  *      using a beamforming steering matrix
1066  */
1067 enum ieee80211_vht_opmode_bits {
1068         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 0x03,
1069         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
1070         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
1071         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
1072         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
1073         IEEE80211_OPMODE_NOTIF_BW_160_80P80     = 0x04,
1074         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
1075         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
1076         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
1077 };
1078
1079 /**
1080  * enum ieee80211_s1g_chanwidth
1081  * These are defined in IEEE802.11-2016ah Table 10-20
1082  * as BSS Channel Width
1083  *
1084  * @IEEE80211_S1G_CHANWIDTH_1MHZ: 1MHz operating channel
1085  * @IEEE80211_S1G_CHANWIDTH_2MHZ: 2MHz operating channel
1086  * @IEEE80211_S1G_CHANWIDTH_4MHZ: 4MHz operating channel
1087  * @IEEE80211_S1G_CHANWIDTH_8MHZ: 8MHz operating channel
1088  * @IEEE80211_S1G_CHANWIDTH_16MHZ: 16MHz operating channel
1089  */
1090 enum ieee80211_s1g_chanwidth {
1091         IEEE80211_S1G_CHANWIDTH_1MHZ = 0,
1092         IEEE80211_S1G_CHANWIDTH_2MHZ = 1,
1093         IEEE80211_S1G_CHANWIDTH_4MHZ = 3,
1094         IEEE80211_S1G_CHANWIDTH_8MHZ = 7,
1095         IEEE80211_S1G_CHANWIDTH_16MHZ = 15,
1096 };
1097
1098 #define WLAN_SA_QUERY_TR_ID_LEN 2
1099 #define WLAN_MEMBERSHIP_LEN 8
1100 #define WLAN_USER_POSITION_LEN 16
1101
1102 /**
1103  * struct ieee80211_tpc_report_ie - TPC Report element
1104  * @tx_power: Transmit Power
1105  * @link_margin: Link Margin
1106  *
1107  * This structure represents the payload of the "TPC Report element" as
1108  * described in IEEE Std 802.11-2020 section 9.4.2.16.
1109  */
1110 struct ieee80211_tpc_report_ie {
1111         u8 tx_power;
1112         u8 link_margin;
1113 } __packed;
1114
1115 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK     GENMASK(2, 1)
1116 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_SHIFT    1
1117 #define IEEE80211_ADDBA_EXT_NO_FRAG             BIT(0)
1118 #define IEEE80211_ADDBA_EXT_BUF_SIZE_MASK       GENMASK(7, 5)
1119 #define IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT      10
1120
1121 struct ieee80211_addba_ext_ie {
1122         u8 data;
1123 } __packed;
1124
1125 /**
1126  * struct ieee80211_s1g_bcn_compat_ie - S1G Beacon Compatibility element
1127  * @compat_info: Compatibility Information
1128  * @beacon_int: Beacon Interval
1129  * @tsf_completion: TSF Completion
1130  *
1131  * This structure represents the payload of the "S1G Beacon
1132  * Compatibility element" as described in IEEE Std 802.11-2020 section
1133  * 9.4.2.196.
1134  */
1135 struct ieee80211_s1g_bcn_compat_ie {
1136         __le16 compat_info;
1137         __le16 beacon_int;
1138         __le32 tsf_completion;
1139 } __packed;
1140
1141 /**
1142  * struct ieee80211_s1g_oper_ie - S1G Operation element
1143  * @ch_width: S1G Operation Information Channel Width
1144  * @oper_class: S1G Operation Information Operating Class
1145  * @primary_ch: S1G Operation Information Primary Channel Number
1146  * @oper_ch: S1G Operation Information  Channel Center Frequency
1147  * @basic_mcs_nss: Basic S1G-MCS and NSS Set
1148  *
1149  * This structure represents the payload of the "S1G Operation
1150  * element" as described in IEEE Std 802.11-2020 section 9.4.2.212.
1151  */
1152 struct ieee80211_s1g_oper_ie {
1153         u8 ch_width;
1154         u8 oper_class;
1155         u8 primary_ch;
1156         u8 oper_ch;
1157         __le16 basic_mcs_nss;
1158 } __packed;
1159
1160 /**
1161  * struct ieee80211_aid_response_ie - AID Response element
1162  * @aid: AID/Group AID
1163  * @switch_count: AID Switch Count
1164  * @response_int: AID Response Interval
1165  *
1166  * This structure represents the payload of the "AID Response element"
1167  * as described in IEEE Std 802.11-2020 section 9.4.2.194.
1168  */
1169 struct ieee80211_aid_response_ie {
1170         __le16 aid;
1171         u8 switch_count;
1172         __le16 response_int;
1173 } __packed;
1174
1175 struct ieee80211_s1g_cap {
1176         u8 capab_info[10];
1177         u8 supp_mcs_nss[5];
1178 } __packed;
1179
1180 struct ieee80211_ext {
1181         __le16 frame_control;
1182         __le16 duration;
1183         union {
1184                 struct {
1185                         u8 sa[ETH_ALEN];
1186                         __le32 timestamp;
1187                         u8 change_seq;
1188                         u8 variable[0];
1189                 } __packed s1g_beacon;
1190                 struct {
1191                         u8 sa[ETH_ALEN];
1192                         __le32 timestamp;
1193                         u8 change_seq;
1194                         u8 next_tbtt[3];
1195                         u8 variable[0];
1196                 } __packed s1g_short_beacon;
1197         } u;
1198 } __packed __aligned(2);
1199
1200 #define IEEE80211_TWT_CONTROL_NDP                       BIT(0)
1201 #define IEEE80211_TWT_CONTROL_RESP_MODE                 BIT(1)
1202 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST        BIT(3)
1203 #define IEEE80211_TWT_CONTROL_RX_DISABLED               BIT(4)
1204 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT             BIT(5)
1205
1206 #define IEEE80211_TWT_REQTYPE_REQUEST                   BIT(0)
1207 #define IEEE80211_TWT_REQTYPE_SETUP_CMD                 GENMASK(3, 1)
1208 #define IEEE80211_TWT_REQTYPE_TRIGGER                   BIT(4)
1209 #define IEEE80211_TWT_REQTYPE_IMPLICIT                  BIT(5)
1210 #define IEEE80211_TWT_REQTYPE_FLOWTYPE                  BIT(6)
1211 #define IEEE80211_TWT_REQTYPE_FLOWID                    GENMASK(9, 7)
1212 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP              GENMASK(14, 10)
1213 #define IEEE80211_TWT_REQTYPE_PROTECTION                BIT(15)
1214
1215 enum ieee80211_twt_setup_cmd {
1216         TWT_SETUP_CMD_REQUEST,
1217         TWT_SETUP_CMD_SUGGEST,
1218         TWT_SETUP_CMD_DEMAND,
1219         TWT_SETUP_CMD_GROUPING,
1220         TWT_SETUP_CMD_ACCEPT,
1221         TWT_SETUP_CMD_ALTERNATE,
1222         TWT_SETUP_CMD_DICTATE,
1223         TWT_SETUP_CMD_REJECT,
1224 };
1225
1226 struct ieee80211_twt_params {
1227         __le16 req_type;
1228         __le64 twt;
1229         u8 min_twt_dur;
1230         __le16 mantissa;
1231         u8 channel;
1232 } __packed;
1233
1234 struct ieee80211_twt_setup {
1235         u8 dialog_token;
1236         u8 element_id;
1237         u8 length;
1238         u8 control;
1239         u8 params[];
1240 } __packed;
1241
1242 struct ieee80211_mgmt {
1243         __le16 frame_control;
1244         __le16 duration;
1245         u8 da[ETH_ALEN];
1246         u8 sa[ETH_ALEN];
1247         u8 bssid[ETH_ALEN];
1248         __le16 seq_ctrl;
1249         union {
1250                 struct {
1251                         __le16 auth_alg;
1252                         __le16 auth_transaction;
1253                         __le16 status_code;
1254                         /* possibly followed by Challenge text */
1255                         u8 variable[];
1256                 } __packed auth;
1257                 struct {
1258                         __le16 reason_code;
1259                 } __packed deauth;
1260                 struct {
1261                         __le16 capab_info;
1262                         __le16 listen_interval;
1263                         /* followed by SSID and Supported rates */
1264                         u8 variable[];
1265                 } __packed assoc_req;
1266                 struct {
1267                         __le16 capab_info;
1268                         __le16 status_code;
1269                         __le16 aid;
1270                         /* followed by Supported rates */
1271                         u8 variable[];
1272                 } __packed assoc_resp, reassoc_resp;
1273                 struct {
1274                         __le16 capab_info;
1275                         __le16 status_code;
1276                         u8 variable[];
1277                 } __packed s1g_assoc_resp, s1g_reassoc_resp;
1278                 struct {
1279                         __le16 capab_info;
1280                         __le16 listen_interval;
1281                         u8 current_ap[ETH_ALEN];
1282                         /* followed by SSID and Supported rates */
1283                         u8 variable[];
1284                 } __packed reassoc_req;
1285                 struct {
1286                         __le16 reason_code;
1287                 } __packed disassoc;
1288                 struct {
1289                         __le64 timestamp;
1290                         __le16 beacon_int;
1291                         __le16 capab_info;
1292                         /* followed by some of SSID, Supported rates,
1293                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
1294                         u8 variable[];
1295                 } __packed beacon;
1296                 struct {
1297                         /* only variable items: SSID, Supported rates */
1298                         DECLARE_FLEX_ARRAY(u8, variable);
1299                 } __packed probe_req;
1300                 struct {
1301                         __le64 timestamp;
1302                         __le16 beacon_int;
1303                         __le16 capab_info;
1304                         /* followed by some of SSID, Supported rates,
1305                          * FH Params, DS Params, CF Params, IBSS Params */
1306                         u8 variable[];
1307                 } __packed probe_resp;
1308                 struct {
1309                         u8 category;
1310                         union {
1311                                 struct {
1312                                         u8 action_code;
1313                                         u8 dialog_token;
1314                                         u8 status_code;
1315                                         u8 variable[];
1316                                 } __packed wme_action;
1317                                 struct{
1318                                         u8 action_code;
1319                                         u8 variable[];
1320                                 } __packed chan_switch;
1321                                 struct{
1322                                         u8 action_code;
1323                                         struct ieee80211_ext_chansw_ie data;
1324                                         u8 variable[];
1325                                 } __packed ext_chan_switch;
1326                                 struct{
1327                                         u8 action_code;
1328                                         u8 dialog_token;
1329                                         u8 element_id;
1330                                         u8 length;
1331                                         struct ieee80211_msrment_ie msr_elem;
1332                                 } __packed measurement;
1333                                 struct{
1334                                         u8 action_code;
1335                                         u8 dialog_token;
1336                                         __le16 capab;
1337                                         __le16 timeout;
1338                                         __le16 start_seq_num;
1339                                         /* followed by BA Extension */
1340                                         u8 variable[];
1341                                 } __packed addba_req;
1342                                 struct{
1343                                         u8 action_code;
1344                                         u8 dialog_token;
1345                                         __le16 status;
1346                                         __le16 capab;
1347                                         __le16 timeout;
1348                                 } __packed addba_resp;
1349                                 struct{
1350                                         u8 action_code;
1351                                         __le16 params;
1352                                         __le16 reason_code;
1353                                 } __packed delba;
1354                                 struct {
1355                                         u8 action_code;
1356                                         u8 variable[];
1357                                 } __packed self_prot;
1358                                 struct{
1359                                         u8 action_code;
1360                                         u8 variable[];
1361                                 } __packed mesh_action;
1362                                 struct {
1363                                         u8 action;
1364                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1365                                 } __packed sa_query;
1366                                 struct {
1367                                         u8 action;
1368                                         u8 smps_control;
1369                                 } __packed ht_smps;
1370                                 struct {
1371                                         u8 action_code;
1372                                         u8 chanwidth;
1373                                 } __packed ht_notify_cw;
1374                                 struct {
1375                                         u8 action_code;
1376                                         u8 dialog_token;
1377                                         __le16 capability;
1378                                         u8 variable[0];
1379                                 } __packed tdls_discover_resp;
1380                                 struct {
1381                                         u8 action_code;
1382                                         u8 operating_mode;
1383                                 } __packed vht_opmode_notif;
1384                                 struct {
1385                                         u8 action_code;
1386                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1387                                         u8 position[WLAN_USER_POSITION_LEN];
1388                                 } __packed vht_group_notif;
1389                                 struct {
1390                                         u8 action_code;
1391                                         u8 dialog_token;
1392                                         u8 tpc_elem_id;
1393                                         u8 tpc_elem_length;
1394                                         struct ieee80211_tpc_report_ie tpc;
1395                                 } __packed tpc_report;
1396                                 struct {
1397                                         u8 action_code;
1398                                         u8 dialog_token;
1399                                         u8 follow_up;
1400                                         u8 tod[6];
1401                                         u8 toa[6];
1402                                         __le16 tod_error;
1403                                         __le16 toa_error;
1404                                         u8 variable[];
1405                                 } __packed ftm;
1406                                 struct {
1407                                         u8 action_code;
1408                                         u8 variable[];
1409                                 } __packed s1g;
1410                                 struct {
1411                                         u8 action_code;
1412                                         u8 dialog_token;
1413                                         u8 follow_up;
1414                                         u32 tod;
1415                                         u32 toa;
1416                                         u8 max_tod_error;
1417                                         u8 max_toa_error;
1418                                 } __packed wnm_timing_msr;
1419                         } u;
1420                 } __packed action;
1421                 DECLARE_FLEX_ARRAY(u8, body); /* Generic frame body */
1422         } u;
1423 } __packed __aligned(2);
1424
1425 /* Supported rates membership selectors */
1426 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1427 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1428 #define BSS_MEMBERSHIP_SELECTOR_GLK     125
1429 #define BSS_MEMBERSHIP_SELECTOR_EPS     124
1430 #define BSS_MEMBERSHIP_SELECTOR_SAE_H2E 123
1431 #define BSS_MEMBERSHIP_SELECTOR_HE_PHY  122
1432 #define BSS_MEMBERSHIP_SELECTOR_EHT_PHY 121
1433
1434 /* mgmt header + 1 byte category code */
1435 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1436
1437
1438 /* Management MIC information element (IEEE 802.11w) */
1439 struct ieee80211_mmie {
1440         u8 element_id;
1441         u8 length;
1442         __le16 key_id;
1443         u8 sequence_number[6];
1444         u8 mic[8];
1445 } __packed;
1446
1447 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1448 struct ieee80211_mmie_16 {
1449         u8 element_id;
1450         u8 length;
1451         __le16 key_id;
1452         u8 sequence_number[6];
1453         u8 mic[16];
1454 } __packed;
1455
1456 struct ieee80211_vendor_ie {
1457         u8 element_id;
1458         u8 len;
1459         u8 oui[3];
1460         u8 oui_type;
1461 } __packed;
1462
1463 struct ieee80211_wmm_ac_param {
1464         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1465         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1466         __le16 txop_limit;
1467 } __packed;
1468
1469 struct ieee80211_wmm_param_ie {
1470         u8 element_id; /* Element ID: 221 (0xdd); */
1471         u8 len; /* Length: 24 */
1472         /* required fields for WMM version 1 */
1473         u8 oui[3]; /* 00:50:f2 */
1474         u8 oui_type; /* 2 */
1475         u8 oui_subtype; /* 1 */
1476         u8 version; /* 1 for WMM version 1.0 */
1477         u8 qos_info; /* AP/STA specific QoS info */
1478         u8 reserved; /* 0 */
1479         /* AC_BE, AC_BK, AC_VI, AC_VO */
1480         struct ieee80211_wmm_ac_param ac[4];
1481 } __packed;
1482
1483 /* Control frames */
1484 struct ieee80211_rts {
1485         __le16 frame_control;
1486         __le16 duration;
1487         u8 ra[ETH_ALEN];
1488         u8 ta[ETH_ALEN];
1489 } __packed __aligned(2);
1490
1491 struct ieee80211_cts {
1492         __le16 frame_control;
1493         __le16 duration;
1494         u8 ra[ETH_ALEN];
1495 } __packed __aligned(2);
1496
1497 struct ieee80211_pspoll {
1498         __le16 frame_control;
1499         __le16 aid;
1500         u8 bssid[ETH_ALEN];
1501         u8 ta[ETH_ALEN];
1502 } __packed __aligned(2);
1503
1504 /* TDLS */
1505
1506 /* Channel switch timing */
1507 struct ieee80211_ch_switch_timing {
1508         __le16 switch_time;
1509         __le16 switch_timeout;
1510 } __packed;
1511
1512 /* Link-id information element */
1513 struct ieee80211_tdls_lnkie {
1514         u8 ie_type; /* Link Identifier IE */
1515         u8 ie_len;
1516         u8 bssid[ETH_ALEN];
1517         u8 init_sta[ETH_ALEN];
1518         u8 resp_sta[ETH_ALEN];
1519 } __packed;
1520
1521 struct ieee80211_tdls_data {
1522         u8 da[ETH_ALEN];
1523         u8 sa[ETH_ALEN];
1524         __be16 ether_type;
1525         u8 payload_type;
1526         u8 category;
1527         u8 action_code;
1528         union {
1529                 struct {
1530                         u8 dialog_token;
1531                         __le16 capability;
1532                         u8 variable[0];
1533                 } __packed setup_req;
1534                 struct {
1535                         __le16 status_code;
1536                         u8 dialog_token;
1537                         __le16 capability;
1538                         u8 variable[0];
1539                 } __packed setup_resp;
1540                 struct {
1541                         __le16 status_code;
1542                         u8 dialog_token;
1543                         u8 variable[0];
1544                 } __packed setup_cfm;
1545                 struct {
1546                         __le16 reason_code;
1547                         u8 variable[0];
1548                 } __packed teardown;
1549                 struct {
1550                         u8 dialog_token;
1551                         u8 variable[0];
1552                 } __packed discover_req;
1553                 struct {
1554                         u8 target_channel;
1555                         u8 oper_class;
1556                         u8 variable[0];
1557                 } __packed chan_switch_req;
1558                 struct {
1559                         __le16 status_code;
1560                         u8 variable[0];
1561                 } __packed chan_switch_resp;
1562         } u;
1563 } __packed;
1564
1565 /*
1566  * Peer-to-Peer IE attribute related definitions.
1567  */
1568 /*
1569  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1570  */
1571 enum ieee80211_p2p_attr_id {
1572         IEEE80211_P2P_ATTR_STATUS = 0,
1573         IEEE80211_P2P_ATTR_MINOR_REASON,
1574         IEEE80211_P2P_ATTR_CAPABILITY,
1575         IEEE80211_P2P_ATTR_DEVICE_ID,
1576         IEEE80211_P2P_ATTR_GO_INTENT,
1577         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1578         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1579         IEEE80211_P2P_ATTR_GROUP_BSSID,
1580         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1581         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1582         IEEE80211_P2P_ATTR_MANAGABILITY,
1583         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1584         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1585         IEEE80211_P2P_ATTR_DEVICE_INFO,
1586         IEEE80211_P2P_ATTR_GROUP_INFO,
1587         IEEE80211_P2P_ATTR_GROUP_ID,
1588         IEEE80211_P2P_ATTR_INTERFACE,
1589         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1590         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1591         /* 19 - 220: Reserved */
1592         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1593
1594         IEEE80211_P2P_ATTR_MAX
1595 };
1596
1597 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1598 /* Typical max value used here */
1599 #define IEEE80211_P2P_NOA_DESC_MAX      4
1600
1601 struct ieee80211_p2p_noa_desc {
1602         u8 count;
1603         __le32 duration;
1604         __le32 interval;
1605         __le32 start_time;
1606 } __packed;
1607
1608 struct ieee80211_p2p_noa_attr {
1609         u8 index;
1610         u8 oppps_ctwindow;
1611         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1612 } __packed;
1613
1614 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1615 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1616
1617 /**
1618  * struct ieee80211_bar - Block Ack Request frame format
1619  * @frame_control: Frame Control
1620  * @duration: Duration
1621  * @ra: RA
1622  * @ta: TA
1623  * @control: BAR Control
1624  * @start_seq_num: Starting Sequence Number (see Figure 9-37)
1625  *
1626  * This structure represents the "BlockAckReq frame format"
1627  * as described in IEEE Std 802.11-2020 section 9.3.1.7.
1628 */
1629 struct ieee80211_bar {
1630         __le16 frame_control;
1631         __le16 duration;
1632         __u8 ra[ETH_ALEN];
1633         __u8 ta[ETH_ALEN];
1634         __le16 control;
1635         __le16 start_seq_num;
1636 } __packed;
1637
1638 /* 802.11 BAR control masks */
1639 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1640 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1641 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1642 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1643 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1644
1645 #define IEEE80211_HT_MCS_MASK_LEN               10
1646
1647 /**
1648  * struct ieee80211_mcs_info - Supported MCS Set field
1649  * @rx_mask: RX mask
1650  * @rx_highest: highest supported RX rate. If set represents
1651  *      the highest supported RX data rate in units of 1 Mbps.
1652  *      If this field is 0 this value should not be used to
1653  *      consider the highest RX data rate supported.
1654  * @tx_params: TX parameters
1655  * @reserved: Reserved bits
1656  *
1657  * This structure represents the "Supported MCS Set field" as
1658  * described in IEEE Std 802.11-2020 section 9.4.2.55.4.
1659  */
1660 struct ieee80211_mcs_info {
1661         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1662         __le16 rx_highest;
1663         u8 tx_params;
1664         u8 reserved[3];
1665 } __packed;
1666
1667 /* 802.11n HT capability MSC set */
1668 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1669 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1670 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1671 /* value 0 == 1 stream etc */
1672 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1673 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1674 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1675 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1676
1677 /*
1678  * 802.11n D5.0 20.3.5 / 20.6 says:
1679  * - indices 0 to 7 and 32 are single spatial stream
1680  * - 8 to 31 are multiple spatial streams using equal modulation
1681  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1682  * - remainder are multiple spatial streams using unequal modulation
1683  */
1684 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1685 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1686         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1687
1688 /**
1689  * struct ieee80211_ht_cap - HT capabilities element
1690  * @cap_info: HT Capability Information
1691  * @ampdu_params_info: A-MPDU Parameters
1692  * @mcs: Supported MCS Set
1693  * @extended_ht_cap_info: HT Extended Capabilities
1694  * @tx_BF_cap_info: Transmit Beamforming Capabilities
1695  * @antenna_selection_info: ASEL Capability
1696  *
1697  * This structure represents the payload of the "HT Capabilities
1698  * element" as described in IEEE Std 802.11-2020 section 9.4.2.55.
1699  */
1700 struct ieee80211_ht_cap {
1701         __le16 cap_info;
1702         u8 ampdu_params_info;
1703
1704         /* 16 bytes MCS information */
1705         struct ieee80211_mcs_info mcs;
1706
1707         __le16 extended_ht_cap_info;
1708         __le32 tx_BF_cap_info;
1709         u8 antenna_selection_info;
1710 } __packed;
1711
1712 /* 802.11n HT capabilities masks (for cap_info) */
1713 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1714 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1715 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1716 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1717 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1718 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1719 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1720 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1721 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1722 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1723 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1724 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1725 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1726 #define IEEE80211_HT_CAP_RESERVED               0x2000
1727 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1728 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1729
1730 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1731 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1732 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1733 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1734 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1735 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1736 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1737 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1738
1739 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1740 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1741 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1742 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1743
1744 /*
1745  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1746  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1747  */
1748 enum ieee80211_max_ampdu_length_exp {
1749         IEEE80211_HT_MAX_AMPDU_8K = 0,
1750         IEEE80211_HT_MAX_AMPDU_16K = 1,
1751         IEEE80211_HT_MAX_AMPDU_32K = 2,
1752         IEEE80211_HT_MAX_AMPDU_64K = 3
1753 };
1754
1755 /*
1756  * Maximum length of AMPDU that the STA can receive in VHT.
1757  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1758  */
1759 enum ieee80211_vht_max_ampdu_length_exp {
1760         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1761         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1762         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1763         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1764         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1765         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1766         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1767         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1768 };
1769
1770 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1771
1772 /* Minimum MPDU start spacing */
1773 enum ieee80211_min_mpdu_spacing {
1774         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1775         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1776         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1777         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1778         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1779         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1780         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1781         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1782 };
1783
1784 /**
1785  * struct ieee80211_ht_operation - HT operation IE
1786  * @primary_chan: Primary Channel
1787  * @ht_param: HT Operation Information parameters
1788  * @operation_mode: HT Operation Information operation mode
1789  * @stbc_param: HT Operation Information STBC params
1790  * @basic_set: Basic HT-MCS Set
1791  *
1792  * This structure represents the payload of the "HT Operation
1793  * element" as described in IEEE Std 802.11-2020 section 9.4.2.56.
1794  */
1795 struct ieee80211_ht_operation {
1796         u8 primary_chan;
1797         u8 ht_param;
1798         __le16 operation_mode;
1799         __le16 stbc_param;
1800         u8 basic_set[16];
1801 } __packed;
1802
1803 /* for ht_param */
1804 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1805 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1806 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1807 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1808 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1809 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1810
1811 /* for operation_mode */
1812 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1813 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1814 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1815 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1816 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1817 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1818 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1819 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT                5
1820 #define IEEE80211_HT_OP_MODE_CCFS2_MASK                 0x1fe0
1821
1822 /* for stbc_param */
1823 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1824 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1825 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1826 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1827 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1828 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1829
1830
1831 /* block-ack parameters */
1832 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1833 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1834 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1835 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1836 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1837 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1838
1839 /*
1840  * A-MPDU buffer sizes
1841  * According to HT size varies from 8 to 64 frames
1842  * HE adds the ability to have up to 256 frames.
1843  * EHT adds the ability to have up to 1K frames.
1844  */
1845 #define IEEE80211_MIN_AMPDU_BUF         0x8
1846 #define IEEE80211_MAX_AMPDU_BUF_HT      0x40
1847 #define IEEE80211_MAX_AMPDU_BUF_HE      0x100
1848 #define IEEE80211_MAX_AMPDU_BUF_EHT     0x400
1849
1850
1851 /* Spatial Multiplexing Power Save Modes (for capability) */
1852 #define WLAN_HT_CAP_SM_PS_STATIC        0
1853 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1854 #define WLAN_HT_CAP_SM_PS_INVALID       2
1855 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1856
1857 /* for SM power control field lower two bits */
1858 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1859 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1860 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1861
1862 /**
1863  * struct ieee80211_vht_mcs_info - VHT MCS information
1864  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1865  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1866  *      STA can receive. Rate expressed in units of 1 Mbps.
1867  *      If this field is 0 this value should not be used to
1868  *      consider the highest RX data rate supported.
1869  *      The top 3 bits of this field indicate the Maximum NSTS,total
1870  *      (a beamformee capability.)
1871  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1872  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1873  *      STA can transmit. Rate expressed in units of 1 Mbps.
1874  *      If this field is 0 this value should not be used to
1875  *      consider the highest TX data rate supported.
1876  *      The top 2 bits of this field are reserved, the
1877  *      3rd bit from the top indiciates VHT Extended NSS BW
1878  *      Capability.
1879  */
1880 struct ieee80211_vht_mcs_info {
1881         __le16 rx_mcs_map;
1882         __le16 rx_highest;
1883         __le16 tx_mcs_map;
1884         __le16 tx_highest;
1885 } __packed;
1886
1887 /* for rx_highest */
1888 #define IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT      13
1889 #define IEEE80211_VHT_MAX_NSTS_TOTAL_MASK       (7 << IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT)
1890
1891 /* for tx_highest */
1892 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE        (1 << 13)
1893
1894 /**
1895  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1896  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1897  *      number of streams
1898  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1899  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1900  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1901  *
1902  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1903  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1904  * both split into 8 subfields by number of streams. These values indicate
1905  * which MCSes are supported for the number of streams the value appears
1906  * for.
1907  */
1908 enum ieee80211_vht_mcs_support {
1909         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1910         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1911         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1912         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1913 };
1914
1915 /**
1916  * struct ieee80211_vht_cap - VHT capabilities
1917  *
1918  * This structure is the "VHT capabilities element" as
1919  * described in 802.11ac D3.0 8.4.2.160
1920  * @vht_cap_info: VHT capability info
1921  * @supp_mcs: VHT MCS supported rates
1922  */
1923 struct ieee80211_vht_cap {
1924         __le32 vht_cap_info;
1925         struct ieee80211_vht_mcs_info supp_mcs;
1926 } __packed;
1927
1928 /**
1929  * enum ieee80211_vht_chanwidth - VHT channel width
1930  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1931  *      determine the channel width (20 or 40 MHz)
1932  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1933  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1934  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1935  */
1936 enum ieee80211_vht_chanwidth {
1937         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1938         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1939         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1940         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1941 };
1942
1943 /**
1944  * struct ieee80211_vht_operation - VHT operation IE
1945  *
1946  * This structure is the "VHT operation element" as
1947  * described in 802.11ac D3.0 8.4.2.161
1948  * @chan_width: Operating channel width
1949  * @center_freq_seg0_idx: center freq segment 0 index
1950  * @center_freq_seg1_idx: center freq segment 1 index
1951  * @basic_mcs_set: VHT Basic MCS rate set
1952  */
1953 struct ieee80211_vht_operation {
1954         u8 chan_width;
1955         u8 center_freq_seg0_idx;
1956         u8 center_freq_seg1_idx;
1957         __le16 basic_mcs_set;
1958 } __packed;
1959
1960 /**
1961  * struct ieee80211_he_cap_elem - HE capabilities element
1962  * @mac_cap_info: HE MAC Capabilities Information
1963  * @phy_cap_info: HE PHY Capabilities Information
1964  *
1965  * This structure represents the fixed fields of the payload of the
1966  * "HE capabilities element" as described in IEEE Std 802.11ax-2021
1967  * sections 9.4.2.248.2 and 9.4.2.248.3.
1968  */
1969 struct ieee80211_he_cap_elem {
1970         u8 mac_cap_info[6];
1971         u8 phy_cap_info[11];
1972 } __packed;
1973
1974 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN    5
1975
1976 /**
1977  * enum ieee80211_he_mcs_support - HE MCS support definitions
1978  * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1979  *      number of streams
1980  * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1981  * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
1982  * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
1983  *
1984  * These definitions are used in each 2-bit subfield of the rx_mcs_*
1985  * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
1986  * both split into 8 subfields by number of streams. These values indicate
1987  * which MCSes are supported for the number of streams the value appears
1988  * for.
1989  */
1990 enum ieee80211_he_mcs_support {
1991         IEEE80211_HE_MCS_SUPPORT_0_7    = 0,
1992         IEEE80211_HE_MCS_SUPPORT_0_9    = 1,
1993         IEEE80211_HE_MCS_SUPPORT_0_11   = 2,
1994         IEEE80211_HE_MCS_NOT_SUPPORTED  = 3,
1995 };
1996
1997 /**
1998  * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
1999  *
2000  * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
2001  * described in P802.11ax_D2.0 section 9.4.2.237.4
2002  *
2003  * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2004  *     widths less than 80MHz.
2005  * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2006  *     widths less than 80MHz.
2007  * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2008  *     width 160MHz.
2009  * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2010  *     width 160MHz.
2011  * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
2012  *     channel width 80p80MHz.
2013  * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
2014  *     channel width 80p80MHz.
2015  */
2016 struct ieee80211_he_mcs_nss_supp {
2017         __le16 rx_mcs_80;
2018         __le16 tx_mcs_80;
2019         __le16 rx_mcs_160;
2020         __le16 tx_mcs_160;
2021         __le16 rx_mcs_80p80;
2022         __le16 tx_mcs_80p80;
2023 } __packed;
2024
2025 /**
2026  * struct ieee80211_he_operation - HE Operation element
2027  * @he_oper_params: HE Operation Parameters + BSS Color Information
2028  * @he_mcs_nss_set: Basic HE-MCS And NSS Set
2029  * @optional: Optional fields VHT Operation Information, Max Co-Hosted
2030  *            BSSID Indicator, and 6 GHz Operation Information
2031  *
2032  * This structure represents the payload of the "HE Operation
2033  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.249.
2034  */
2035 struct ieee80211_he_operation {
2036         __le32 he_oper_params;
2037         __le16 he_mcs_nss_set;
2038         u8 optional[];
2039 } __packed;
2040
2041 /**
2042  * struct ieee80211_he_spr - Spatial Reuse Parameter Set element
2043  * @he_sr_control: SR Control
2044  * @optional: Optional fields Non-SRG OBSS PD Max Offset, SRG OBSS PD
2045  *            Min Offset, SRG OBSS PD Max Offset, SRG BSS Color
2046  *            Bitmap, and SRG Partial BSSID Bitmap
2047  *
2048  * This structure represents the payload of the "Spatial Reuse
2049  * Parameter Set element" as described in IEEE Std 802.11ax-2021
2050  * section 9.4.2.252.
2051  */
2052 struct ieee80211_he_spr {
2053         u8 he_sr_control;
2054         u8 optional[];
2055 } __packed;
2056
2057 /**
2058  * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
2059  * @aifsn: ACI/AIFSN
2060  * @ecw_min_max: ECWmin/ECWmax
2061  * @mu_edca_timer: MU EDCA Timer
2062  *
2063  * This structure represents the "MU AC Parameter Record" as described
2064  * in IEEE Std 802.11ax-2021 section 9.4.2.251, Figure 9-788p.
2065  */
2066 struct ieee80211_he_mu_edca_param_ac_rec {
2067         u8 aifsn;
2068         u8 ecw_min_max;
2069         u8 mu_edca_timer;
2070 } __packed;
2071
2072 /**
2073  * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
2074  * @mu_qos_info: QoS Info
2075  * @ac_be: MU AC_BE Parameter Record
2076  * @ac_bk: MU AC_BK Parameter Record
2077  * @ac_vi: MU AC_VI Parameter Record
2078  * @ac_vo: MU AC_VO Parameter Record
2079  *
2080  * This structure represents the payload of the "MU EDCA Parameter Set
2081  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.251.
2082  */
2083 struct ieee80211_mu_edca_param_set {
2084         u8 mu_qos_info;
2085         struct ieee80211_he_mu_edca_param_ac_rec ac_be;
2086         struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
2087         struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
2088         struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
2089 } __packed;
2090
2091 #define IEEE80211_EHT_MCS_NSS_RX 0x0f
2092 #define IEEE80211_EHT_MCS_NSS_TX 0xf0
2093
2094 /**
2095  * struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
2096  * supported NSS for per MCS.
2097  *
2098  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2099  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2100  * for Tx.
2101  *
2102  * @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
2103  *     supported for reception and the maximum number of spatial streams
2104  *     supported for transmission for MCS 0 - 7.
2105  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2106  *     supported for reception and the maximum number of spatial streams
2107  *     supported for transmission for MCS 8 - 9.
2108  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2109  *     supported for reception and the maximum number of spatial streams
2110  *     supported for transmission for MCS 10 - 11.
2111  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
2112  *     supported for reception and the maximum number of spatial streams
2113  *     supported for transmission for MCS 12 - 13.
2114  * @rx_tx_max_nss: array of the previous fields for easier loop access
2115  */
2116 struct ieee80211_eht_mcs_nss_supp_20mhz_only {
2117         union {
2118                 struct {
2119                         u8 rx_tx_mcs7_max_nss;
2120                         u8 rx_tx_mcs9_max_nss;
2121                         u8 rx_tx_mcs11_max_nss;
2122                         u8 rx_tx_mcs13_max_nss;
2123                 };
2124                 u8 rx_tx_max_nss[4];
2125         };
2126 };
2127
2128 /**
2129  * struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
2130  * 20MHz only stations).
2131  *
2132  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2133  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2134  * for Tx.
2135  *
2136  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2137  *     supported for reception and the maximum number of spatial streams
2138  *     supported for transmission for MCS 0 - 9.
2139  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2140  *     supported for reception and the maximum number of spatial streams
2141  *     supported for transmission for MCS 10 - 11.
2142  * @rx_tx_mcs13_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 12 - 13.
2145  * @rx_tx_max_nss: array of the previous fields for easier loop access
2146  */
2147 struct ieee80211_eht_mcs_nss_supp_bw {
2148         union {
2149                 struct {
2150                         u8 rx_tx_mcs9_max_nss;
2151                         u8 rx_tx_mcs11_max_nss;
2152                         u8 rx_tx_mcs13_max_nss;
2153                 };
2154                 u8 rx_tx_max_nss[3];
2155         };
2156 };
2157
2158 /**
2159  * struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
2160  *
2161  * This structure is the "EHT Capabilities element" fixed fields as
2162  * described in P802.11be_D2.0 section 9.4.2.313.
2163  *
2164  * @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
2165  * @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
2166  */
2167 struct ieee80211_eht_cap_elem_fixed {
2168         u8 mac_cap_info[2];
2169         u8 phy_cap_info[9];
2170 } __packed;
2171
2172 /**
2173  * struct ieee80211_eht_cap_elem - EHT capabilities element
2174  * @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
2175  * @optional: optional parts
2176  */
2177 struct ieee80211_eht_cap_elem {
2178         struct ieee80211_eht_cap_elem_fixed fixed;
2179
2180         /*
2181          * Followed by:
2182          * Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
2183          * EHT PPE Thresholds field: variable length.
2184          */
2185         u8 optional[];
2186 } __packed;
2187
2188 #define IEEE80211_EHT_OPER_INFO_PRESENT                         0x01
2189 #define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT   0x02
2190 #define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION                  0x04
2191 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT         0x08
2192 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK      0x30
2193
2194 /**
2195  * struct ieee80211_eht_operation - eht operation element
2196  *
2197  * This structure is the "EHT Operation Element" fields as
2198  * described in P802.11be_D2.0 section 9.4.2.311
2199  *
2200  * @params: EHT operation element parameters. See &IEEE80211_EHT_OPER_*
2201  * @basic_mcs_nss: indicates the EHT-MCSs for each number of spatial streams in
2202  *     EHT PPDUs that are supported by all EHT STAs in the BSS in transmit and
2203  *     receive.
2204  * @optional: optional parts
2205  */
2206 struct ieee80211_eht_operation {
2207         u8 params;
2208         struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
2209         u8 optional[];
2210 } __packed;
2211
2212 /**
2213  * struct ieee80211_eht_operation_info - eht operation information
2214  *
2215  * @control: EHT operation information control.
2216  * @ccfs0: defines a channel center frequency for a 20, 40, 80, 160, or 320 MHz
2217  *     EHT BSS.
2218  * @ccfs1: defines a channel center frequency for a 160 or 320 MHz EHT BSS.
2219  * @optional: optional parts
2220  */
2221 struct ieee80211_eht_operation_info {
2222         u8 control;
2223         u8 ccfs0;
2224         u8 ccfs1;
2225         u8 optional[];
2226 } __packed;
2227
2228 /* 802.11ac VHT Capabilities */
2229 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
2230 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
2231 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
2232 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
2233 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
2234 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
2235 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
2236 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_SHIFT                 2
2237 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
2238 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
2239 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
2240 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
2241 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
2242 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
2243 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
2244 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
2245 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
2246 #define IEEE80211_VHT_CAP_RXSTBC_SHIFT                          8
2247 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
2248 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
2249 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
2250 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
2251                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
2252 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
2253 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
2254                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
2255 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
2256 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
2257 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
2258 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
2259 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
2260 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
2261                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
2262 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
2263 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
2264 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
2265 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
2266 #define IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT                      30
2267 #define IEEE80211_VHT_CAP_EXT_NSS_BW_MASK                       0xc0000000
2268
2269 /**
2270  * ieee80211_get_vht_max_nss - return max NSS for a given bandwidth/MCS
2271  * @cap: VHT capabilities of the peer
2272  * @bw: bandwidth to use
2273  * @mcs: MCS index to use
2274  * @ext_nss_bw_capable: indicates whether or not the local transmitter
2275  *      (rate scaling algorithm) can deal with the new logic
2276  *      (dot11VHTExtendedNSSBWCapable)
2277  * @max_vht_nss: current maximum NSS as advertised by the STA in
2278  *      operating mode notification, can be 0 in which case the
2279  *      capability data will be used to derive this (from MCS support)
2280  *
2281  * Due to the VHT Extended NSS Bandwidth Support, the maximum NSS can
2282  * vary for a given BW/MCS. This function parses the data.
2283  *
2284  * Note: This function is exported by cfg80211.
2285  */
2286 int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
2287                               enum ieee80211_vht_chanwidth bw,
2288                               int mcs, bool ext_nss_bw_capable,
2289                               unsigned int max_vht_nss);
2290
2291 /**
2292  * enum ieee80211_ap_reg_power - regulatory power for a Access Point
2293  *
2294  * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
2295  * @IEEE80211_REG_LPI_AP: Indoor Access Point
2296  * @IEEE80211_REG_SP_AP: Standard power Access Point
2297  * @IEEE80211_REG_VLP_AP: Very low power Access Point
2298  * @IEEE80211_REG_AP_POWER_AFTER_LAST: internal
2299  * @IEEE80211_REG_AP_POWER_MAX: maximum value
2300  */
2301 enum ieee80211_ap_reg_power {
2302         IEEE80211_REG_UNSET_AP,
2303         IEEE80211_REG_LPI_AP,
2304         IEEE80211_REG_SP_AP,
2305         IEEE80211_REG_VLP_AP,
2306         IEEE80211_REG_AP_POWER_AFTER_LAST,
2307         IEEE80211_REG_AP_POWER_MAX =
2308                 IEEE80211_REG_AP_POWER_AFTER_LAST - 1,
2309 };
2310
2311 /**
2312  * enum ieee80211_client_reg_power - regulatory power for a client
2313  *
2314  * @IEEE80211_REG_UNSET_CLIENT: Client has no regulatory power mode
2315  * @IEEE80211_REG_DEFAULT_CLIENT: Default Client
2316  * @IEEE80211_REG_SUBORDINATE_CLIENT: Subordinate Client
2317  * @IEEE80211_REG_CLIENT_POWER_AFTER_LAST: internal
2318  * @IEEE80211_REG_CLIENT_POWER_MAX: maximum value
2319  */
2320 enum ieee80211_client_reg_power {
2321         IEEE80211_REG_UNSET_CLIENT,
2322         IEEE80211_REG_DEFAULT_CLIENT,
2323         IEEE80211_REG_SUBORDINATE_CLIENT,
2324         IEEE80211_REG_CLIENT_POWER_AFTER_LAST,
2325         IEEE80211_REG_CLIENT_POWER_MAX =
2326                 IEEE80211_REG_CLIENT_POWER_AFTER_LAST - 1,
2327 };
2328
2329 /* 802.11ax HE MAC capabilities */
2330 #define IEEE80211_HE_MAC_CAP0_HTC_HE                            0x01
2331 #define IEEE80211_HE_MAC_CAP0_TWT_REQ                           0x02
2332 #define IEEE80211_HE_MAC_CAP0_TWT_RES                           0x04
2333 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP             0x00
2334 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1              0x08
2335 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2              0x10
2336 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3              0x18
2337 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK                 0x18
2338 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1               0x00
2339 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2               0x20
2340 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4               0x40
2341 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8               0x60
2342 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16              0x80
2343 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32              0xa0
2344 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64              0xc0
2345 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED       0xe0
2346 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK            0xe0
2347
2348 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED           0x00
2349 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128                 0x01
2350 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256                 0x02
2351 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512                 0x03
2352 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK                0x03
2353 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US                0x00
2354 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US                0x04
2355 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US               0x08
2356 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK               0x0c
2357 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_1            0x00
2358 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_2            0x10
2359 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_3            0x20
2360 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_4            0x30
2361 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_5            0x40
2362 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_6            0x50
2363 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_7            0x60
2364 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8            0x70
2365 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_MASK         0x70
2366
2367 /* Link adaptation is split between byte HE_MAC_CAP1 and
2368  * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
2369  * in which case the following values apply:
2370  * 0 = No feedback.
2371  * 1 = reserved.
2372  * 2 = Unsolicited feedback.
2373  * 3 = both
2374  */
2375 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION                   0x80
2376
2377 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION                   0x01
2378 #define IEEE80211_HE_MAC_CAP2_ALL_ACK                           0x02
2379 #define IEEE80211_HE_MAC_CAP2_TRS                               0x04
2380 #define IEEE80211_HE_MAC_CAP2_BSR                               0x08
2381 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT                         0x10
2382 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP                   0x20
2383 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING                      0x40
2384 #define IEEE80211_HE_MAC_CAP2_ACK_EN                            0x80
2385
2386 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL                       0x02
2387 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA                          0x04
2388
2389 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
2390  * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
2391  * same field in the HE capabilities.
2392  */
2393 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0           0x00
2394 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1           0x08
2395 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2           0x10
2396 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3           0x18
2397 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK            0x18
2398 #define IEEE80211_HE_MAC_CAP3_AMSDU_FRAG                        0x20
2399 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED                    0x40
2400 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS         0x80
2401
2402 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG              0x01
2403 #define IEEE80211_HE_MAC_CAP4_QTP                               0x02
2404 #define IEEE80211_HE_MAC_CAP4_BQR                               0x04
2405 #define IEEE80211_HE_MAC_CAP4_PSR_RESP                          0x08
2406 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP                        0x10
2407 #define IEEE80211_HE_MAC_CAP4_OPS                               0x20
2408 #define IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU                    0x40
2409 /* Multi TID agg TX is split between byte #4 and #5
2410  * The value is a combination of B39,B40,B41
2411  */
2412 #define IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39          0x80
2413
2414 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40          0x01
2415 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41          0x02
2416 #define IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECTIVE_TRANSMISSION    0x04
2417 #define IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU                  0x08
2418 #define IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX         0x10
2419 #define IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS                  0x20
2420 #define IEEE80211_HE_MAC_CAP5_PUNCTURED_SOUNDING                0x40
2421 #define IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX              0x80
2422
2423 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR       20
2424 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR        16
2425 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR      13
2426
2427 /* 802.11ax HE PHY capabilities */
2428 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G             0x02
2429 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G       0x04
2430 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G            0x08
2431 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G      0x10
2432 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL                0x1e
2433
2434 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G        0x20
2435 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G        0x40
2436 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK                    0xfe
2437
2438 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ  0x01
2439 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ  0x02
2440 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
2441 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
2442 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK                     0x0f
2443 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A                            0x10
2444 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD                    0x20
2445 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US          0x40
2446 /* Midamble RX/TX Max NSTS is split between byte #2 and byte #3 */
2447 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS                   0x80
2448
2449 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS                   0x01
2450 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US                      0x02
2451 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ                       0x04
2452 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ                       0x08
2453 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX                                0x10
2454 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX                                0x20
2455
2456 /* Note that the meaning of UL MU below is different between an AP and a non-AP
2457  * sta, where in the AP case it indicates support for Rx and in the non-AP sta
2458  * case it indicates support for Tx.
2459  */
2460 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO                        0x40
2461 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO                     0x80
2462
2463 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM                   0x00
2464 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK                     0x01
2465 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK                     0x02
2466 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM                   0x03
2467 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK                     0x03
2468 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1                          0x00
2469 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2                          0x04
2470 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM                   0x00
2471 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK                     0x08
2472 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK                     0x10
2473 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM                   0x18
2474 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK                     0x18
2475 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1                          0x00
2476 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2                          0x20
2477 #define IEEE80211_HE_PHY_CAP3_RX_PARTIAL_BW_SU_IN_20MHZ_MU              0x40
2478 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER                             0x80
2479
2480 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE                             0x01
2481 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER                             0x02
2482
2483 /* Minimal allowed value of Max STS under 80MHz is 3 */
2484 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4          0x0c
2485 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5          0x10
2486 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6          0x14
2487 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7          0x18
2488 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8          0x1c
2489 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK       0x1c
2490
2491 /* Minimal allowed value of Max STS above 80MHz is 3 */
2492 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4          0x60
2493 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5          0x80
2494 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6          0xa0
2495 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7          0xc0
2496 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8          0xe0
2497 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK       0xe0
2498
2499 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1      0x00
2500 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2      0x01
2501 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3      0x02
2502 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4      0x03
2503 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5      0x04
2504 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6      0x05
2505 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7      0x06
2506 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8      0x07
2507 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK   0x07
2508
2509 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1      0x00
2510 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2      0x08
2511 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3      0x10
2512 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4      0x18
2513 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5      0x20
2514 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6      0x28
2515 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7      0x30
2516 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8      0x38
2517 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK   0x38
2518
2519 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK                          0x40
2520 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK                          0x80
2521
2522 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU                       0x01
2523 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU                       0x02
2524 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB                    0x04
2525 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB         0x08
2526 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB                               0x10
2527 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE                      0x20
2528 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO               0x40
2529 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT                     0x80
2530
2531 #define IEEE80211_HE_PHY_CAP7_PSR_BASED_SR                              0x01
2532 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP                   0x02
2533 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI          0x04
2534 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1                                  0x08
2535 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2                                  0x10
2536 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3                                  0x18
2537 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4                                  0x20
2538 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5                                  0x28
2539 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6                                  0x30
2540 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7                                  0x38
2541 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK                               0x38
2542 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ                       0x40
2543 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ                       0x80
2544
2545 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI          0x01
2546 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G              0x02
2547 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU                   0x04
2548 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU                   0x08
2549 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI               0x10
2550 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_TX_2X_AND_1XLTF               0x20
2551 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242                            0x00
2552 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484                            0x40
2553 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996                            0x80
2554 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996                          0xc0
2555 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK                           0xc0
2556
2557 #define IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM              0x01
2558 #define IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK                0x02
2559 #define IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU         0x04
2560 #define IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU         0x08
2561 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB     0x10
2562 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB 0x20
2563 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US                   0x0
2564 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US                   0x1
2565 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US                  0x2
2566 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED              0x3
2567 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_POS                   6
2568 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK                  0xc0
2569
2570 #define IEEE80211_HE_PHY_CAP10_HE_MU_M1RU_MAX_LTF                       0x01
2571
2572 /* 802.11ax HE TX/RX MCS NSS Support  */
2573 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS                    (3)
2574 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS                      (6)
2575 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS                      (11)
2576 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK                     0x07c0
2577 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK                     0xf800
2578
2579 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
2580 enum ieee80211_he_highest_mcs_supported_subfield_enc {
2581         HIGHEST_MCS_SUPPORTED_MCS7 = 0,
2582         HIGHEST_MCS_SUPPORTED_MCS8,
2583         HIGHEST_MCS_SUPPORTED_MCS9,
2584         HIGHEST_MCS_SUPPORTED_MCS10,
2585         HIGHEST_MCS_SUPPORTED_MCS11,
2586 };
2587
2588 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
2589 static inline u8
2590 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
2591 {
2592         u8 count = 4;
2593
2594         if (he_cap->phy_cap_info[0] &
2595             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
2596                 count += 4;
2597
2598         if (he_cap->phy_cap_info[0] &
2599             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
2600                 count += 4;
2601
2602         return count;
2603 }
2604
2605 /* 802.11ax HE PPE Thresholds */
2606 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS                    (1)
2607 #define IEEE80211_PPE_THRES_NSS_POS                             (0)
2608 #define IEEE80211_PPE_THRES_NSS_MASK                            (7)
2609 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU   \
2610         (BIT(5) | BIT(6))
2611 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK               0x78
2612 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS                (3)
2613 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE                      (3)
2614 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE                 (7)
2615
2616 /*
2617  * Calculate 802.11ax HE capabilities IE PPE field size
2618  * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
2619  */
2620 static inline u8
2621 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
2622 {
2623         u8 n;
2624
2625         if ((phy_cap_info[6] &
2626              IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
2627                 return 0;
2628
2629         n = hweight8(ppe_thres_hdr &
2630                      IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2631         n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
2632                    IEEE80211_PPE_THRES_NSS_POS));
2633
2634         /*
2635          * Each pair is 6 bits, and we need to add the 7 "header" bits to the
2636          * total size.
2637          */
2638         n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
2639         n = DIV_ROUND_UP(n, 8);
2640
2641         return n;
2642 }
2643
2644 static inline bool ieee80211_he_capa_size_ok(const u8 *data, u8 len)
2645 {
2646         const struct ieee80211_he_cap_elem *he_cap_ie_elem = (const void *)data;
2647         u8 needed = sizeof(*he_cap_ie_elem);
2648
2649         if (len < needed)
2650                 return false;
2651
2652         needed += ieee80211_he_mcs_nss_size(he_cap_ie_elem);
2653         if (len < needed)
2654                 return false;
2655
2656         if (he_cap_ie_elem->phy_cap_info[6] &
2657                         IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2658                 if (len < needed + 1)
2659                         return false;
2660                 needed += ieee80211_he_ppe_size(data[needed],
2661                                                 he_cap_ie_elem->phy_cap_info);
2662         }
2663
2664         return len >= needed;
2665 }
2666
2667 /* HE Operation defines */
2668 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK            0x00000007
2669 #define IEEE80211_HE_OPERATION_TWT_REQUIRED                     0x00000008
2670 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK               0x00003ff0
2671 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET             4
2672 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO                    0x00004000
2673 #define IEEE80211_HE_OPERATION_CO_HOSTED_BSS                    0x00008000
2674 #define IEEE80211_HE_OPERATION_ER_SU_DISABLE                    0x00010000
2675 #define IEEE80211_HE_OPERATION_6GHZ_OP_INFO                     0x00020000
2676 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK                   0x3f000000
2677 #define IEEE80211_HE_OPERATION_BSS_COLOR_OFFSET                 24
2678 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR                0x40000000
2679 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED               0x80000000
2680
2681 #define IEEE80211_6GHZ_CTRL_REG_LPI_AP  0
2682 #define IEEE80211_6GHZ_CTRL_REG_SP_AP   1
2683
2684 /**
2685  * struct ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
2686  * @primary: primary channel
2687  * @control: control flags
2688  * @ccfs0: channel center frequency segment 0
2689  * @ccfs1: channel center frequency segment 1
2690  * @minrate: minimum rate (in 1 Mbps units)
2691  */
2692 struct ieee80211_he_6ghz_oper {
2693         u8 primary;
2694 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH   0x3
2695 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ     0
2696 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ     1
2697 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ     2
2698 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ    3
2699 #define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON  0x4
2700 #define IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO    0x38
2701         u8 control;
2702         u8 ccfs0;
2703         u8 ccfs1;
2704         u8 minrate;
2705 } __packed;
2706
2707 /*
2708  * In "9.4.2.161 Transmit Power Envelope element" of "IEEE Std 802.11ax-2021",
2709  * it show four types in "Table 9-275a-Maximum Transmit Power Interpretation
2710  * subfield encoding", and two category for each type in "Table E-12-Regulatory
2711  * Info subfield encoding in the United States".
2712  * So it it totally max 8 Transmit Power Envelope element.
2713  */
2714 #define IEEE80211_TPE_MAX_IE_COUNT      8
2715 /*
2716  * In "Table 9-277—Meaning of Maximum Transmit Power Count subfield"
2717  * of "IEEE Std 802.11ax™‐2021", the max power level is 8.
2718  */
2719 #define IEEE80211_MAX_NUM_PWR_LEVEL     8
2720
2721 #define IEEE80211_TPE_MAX_POWER_COUNT   8
2722
2723 /* transmit power interpretation type of transmit power envelope element */
2724 enum ieee80211_tx_power_intrpt_type {
2725         IEEE80211_TPE_LOCAL_EIRP,
2726         IEEE80211_TPE_LOCAL_EIRP_PSD,
2727         IEEE80211_TPE_REG_CLIENT_EIRP,
2728         IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
2729 };
2730
2731 /**
2732  * struct ieee80211_tx_pwr_env - Transmit Power Envelope
2733  * @tx_power_info: Transmit Power Information field
2734  * @tx_power: Maximum Transmit Power field
2735  *
2736  * This structure represents the payload of the "Transmit Power
2737  * Envelope element" as described in IEEE Std 802.11ax-2021 section
2738  * 9.4.2.161
2739  */
2740 struct ieee80211_tx_pwr_env {
2741         u8 tx_power_info;
2742         s8 tx_power[IEEE80211_TPE_MAX_POWER_COUNT];
2743 } __packed;
2744
2745 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x7
2746 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
2747 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xC0
2748
2749 /*
2750  * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
2751  * @he_oper_ie: byte data of the He Operations IE, stating from the byte
2752  *      after the ext ID byte. It is assumed that he_oper_ie has at least
2753  *      sizeof(struct ieee80211_he_operation) bytes, the caller must have
2754  *      validated this.
2755  * @return the actual size of the IE data (not including header), or 0 on error
2756  */
2757 static inline u8
2758 ieee80211_he_oper_size(const u8 *he_oper_ie)
2759 {
2760         const struct ieee80211_he_operation *he_oper = (const void *)he_oper_ie;
2761         u8 oper_len = sizeof(struct ieee80211_he_operation);
2762         u32 he_oper_params;
2763
2764         /* Make sure the input is not NULL */
2765         if (!he_oper_ie)
2766                 return 0;
2767
2768         /* Calc required length */
2769         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2770         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2771                 oper_len += 3;
2772         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2773                 oper_len++;
2774         if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO)
2775                 oper_len += sizeof(struct ieee80211_he_6ghz_oper);
2776
2777         /* Add the first byte (extension ID) to the total length */
2778         oper_len++;
2779
2780         return oper_len;
2781 }
2782
2783 /**
2784  * ieee80211_he_6ghz_oper - obtain 6 GHz operation field
2785  * @he_oper: HE operation element (must be pre-validated for size)
2786  *      but may be %NULL
2787  *
2788  * Return: a pointer to the 6 GHz operation field, or %NULL
2789  */
2790 static inline const struct ieee80211_he_6ghz_oper *
2791 ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
2792 {
2793         const u8 *ret = (const void *)&he_oper->optional;
2794         u32 he_oper_params;
2795
2796         if (!he_oper)
2797                 return NULL;
2798
2799         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2800
2801         if (!(he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO))
2802                 return NULL;
2803         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2804                 ret += 3;
2805         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2806                 ret++;
2807
2808         return (const void *)ret;
2809 }
2810
2811 /* HE Spatial Reuse defines */
2812 #define IEEE80211_HE_SPR_PSR_DISALLOWED                         BIT(0)
2813 #define IEEE80211_HE_SPR_NON_SRG_OBSS_PD_SR_DISALLOWED          BIT(1)
2814 #define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT                 BIT(2)
2815 #define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT                BIT(3)
2816 #define IEEE80211_HE_SPR_HESIGA_SR_VAL15_ALLOWED                BIT(4)
2817
2818 /*
2819  * ieee80211_he_spr_size - calculate 802.11ax HE Spatial Reuse IE size
2820  * @he_spr_ie: byte data of the He Spatial Reuse IE, stating from the byte
2821  *      after the ext ID byte. It is assumed that he_spr_ie has at least
2822  *      sizeof(struct ieee80211_he_spr) bytes, the caller must have validated
2823  *      this
2824  * @return the actual size of the IE data (not including header), or 0 on error
2825  */
2826 static inline u8
2827 ieee80211_he_spr_size(const u8 *he_spr_ie)
2828 {
2829         const struct ieee80211_he_spr *he_spr = (const void *)he_spr_ie;
2830         u8 spr_len = sizeof(struct ieee80211_he_spr);
2831         u8 he_spr_params;
2832
2833         /* Make sure the input is not NULL */
2834         if (!he_spr_ie)
2835                 return 0;
2836
2837         /* Calc required length */
2838         he_spr_params = he_spr->he_sr_control;
2839         if (he_spr_params & IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT)
2840                 spr_len++;
2841         if (he_spr_params & IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT)
2842                 spr_len += 18;
2843
2844         /* Add the first byte (extension ID) to the total length */
2845         spr_len++;
2846
2847         return spr_len;
2848 }
2849
2850 /* S1G Capabilities Information field */
2851 #define IEEE80211_S1G_CAPABILITY_LEN    15
2852
2853 #define S1G_CAP0_S1G_LONG       BIT(0)
2854 #define S1G_CAP0_SGI_1MHZ       BIT(1)
2855 #define S1G_CAP0_SGI_2MHZ       BIT(2)
2856 #define S1G_CAP0_SGI_4MHZ       BIT(3)
2857 #define S1G_CAP0_SGI_8MHZ       BIT(4)
2858 #define S1G_CAP0_SGI_16MHZ      BIT(5)
2859 #define S1G_CAP0_SUPP_CH_WIDTH  GENMASK(7, 6)
2860
2861 #define S1G_SUPP_CH_WIDTH_2     0
2862 #define S1G_SUPP_CH_WIDTH_4     1
2863 #define S1G_SUPP_CH_WIDTH_8     2
2864 #define S1G_SUPP_CH_WIDTH_16    3
2865 #define S1G_SUPP_CH_WIDTH_MAX(cap) ((1 << FIELD_GET(S1G_CAP0_SUPP_CH_WIDTH, \
2866                                                     cap[0])) << 1)
2867
2868 #define S1G_CAP1_RX_LDPC        BIT(0)
2869 #define S1G_CAP1_TX_STBC        BIT(1)
2870 #define S1G_CAP1_RX_STBC        BIT(2)
2871 #define S1G_CAP1_SU_BFER        BIT(3)
2872 #define S1G_CAP1_SU_BFEE        BIT(4)
2873 #define S1G_CAP1_BFEE_STS       GENMASK(7, 5)
2874
2875 #define S1G_CAP2_SOUNDING_DIMENSIONS    GENMASK(2, 0)
2876 #define S1G_CAP2_MU_BFER                BIT(3)
2877 #define S1G_CAP2_MU_BFEE                BIT(4)
2878 #define S1G_CAP2_PLUS_HTC_VHT           BIT(5)
2879 #define S1G_CAP2_TRAVELING_PILOT        GENMASK(7, 6)
2880
2881 #define S1G_CAP3_RD_RESPONDER           BIT(0)
2882 #define S1G_CAP3_HT_DELAYED_BA          BIT(1)
2883 #define S1G_CAP3_MAX_MPDU_LEN           BIT(2)
2884 #define S1G_CAP3_MAX_AMPDU_LEN_EXP      GENMASK(4, 3)
2885 #define S1G_CAP3_MIN_MPDU_START         GENMASK(7, 5)
2886
2887 #define S1G_CAP4_UPLINK_SYNC    BIT(0)
2888 #define S1G_CAP4_DYNAMIC_AID    BIT(1)
2889 #define S1G_CAP4_BAT            BIT(2)
2890 #define S1G_CAP4_TIME_ADE       BIT(3)
2891 #define S1G_CAP4_NON_TIM        BIT(4)
2892 #define S1G_CAP4_GROUP_AID      BIT(5)
2893 #define S1G_CAP4_STA_TYPE       GENMASK(7, 6)
2894
2895 #define S1G_CAP5_CENT_AUTH_CONTROL      BIT(0)
2896 #define S1G_CAP5_DIST_AUTH_CONTROL      BIT(1)
2897 #define S1G_CAP5_AMSDU                  BIT(2)
2898 #define S1G_CAP5_AMPDU                  BIT(3)
2899 #define S1G_CAP5_ASYMMETRIC_BA          BIT(4)
2900 #define S1G_CAP5_FLOW_CONTROL           BIT(5)
2901 #define S1G_CAP5_SECTORIZED_BEAM        GENMASK(7, 6)
2902
2903 #define S1G_CAP6_OBSS_MITIGATION        BIT(0)
2904 #define S1G_CAP6_FRAGMENT_BA            BIT(1)
2905 #define S1G_CAP6_NDP_PS_POLL            BIT(2)
2906 #define S1G_CAP6_RAW_OPERATION          BIT(3)
2907 #define S1G_CAP6_PAGE_SLICING           BIT(4)
2908 #define S1G_CAP6_TXOP_SHARING_IMP_ACK   BIT(5)
2909 #define S1G_CAP6_VHT_LINK_ADAPT         GENMASK(7, 6)
2910
2911 #define S1G_CAP7_TACK_AS_PS_POLL                BIT(0)
2912 #define S1G_CAP7_DUP_1MHZ                       BIT(1)
2913 #define S1G_CAP7_MCS_NEGOTIATION                BIT(2)
2914 #define S1G_CAP7_1MHZ_CTL_RESPONSE_PREAMBLE     BIT(3)
2915 #define S1G_CAP7_NDP_BFING_REPORT_POLL          BIT(4)
2916 #define S1G_CAP7_UNSOLICITED_DYN_AID            BIT(5)
2917 #define S1G_CAP7_SECTOR_TRAINING_OPERATION      BIT(6)
2918 #define S1G_CAP7_TEMP_PS_MODE_SWITCH            BIT(7)
2919
2920 #define S1G_CAP8_TWT_GROUPING   BIT(0)
2921 #define S1G_CAP8_BDT            BIT(1)
2922 #define S1G_CAP8_COLOR          GENMASK(4, 2)
2923 #define S1G_CAP8_TWT_REQUEST    BIT(5)
2924 #define S1G_CAP8_TWT_RESPOND    BIT(6)
2925 #define S1G_CAP8_PV1_FRAME      BIT(7)
2926
2927 #define S1G_CAP9_LINK_ADAPT_PER_CONTROL_RESPONSE BIT(0)
2928
2929 #define S1G_OPER_CH_WIDTH_PRIMARY_1MHZ  BIT(0)
2930 #define S1G_OPER_CH_WIDTH_OPER          GENMASK(4, 1)
2931
2932 /* EHT MAC capabilities as defined in P802.11be_D2.0 section 9.4.2.313.2 */
2933 #define IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS                 0x01
2934 #define IEEE80211_EHT_MAC_CAP0_OM_CONTROL                       0x02
2935 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1          0x04
2936 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2          0x08
2937 #define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT                   0x10
2938 #define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC                 0x20
2939 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK                0xc0
2940 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895                0
2941 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991                1
2942 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454               2
2943
2944 #define IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK               0x01
2945
2946 /* EHT PHY capabilities as defined in P802.11be_D2.0 section 9.4.2.313.3 */
2947 #define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ                   0x02
2948 #define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ              0x04
2949 #define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI              0x08
2950 #define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO            0x10
2951 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER                    0x20
2952 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE                    0x40
2953
2954 /* EHT beamformee number of spatial streams <= 80MHz is split */
2955 #define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK         0x80
2956 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK         0x03
2957
2958 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK        0x1c
2959 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK        0xe0
2960
2961 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK          0x07
2962 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK         0x38
2963
2964 /* EHT number of sounding dimensions for 320MHz is split */
2965 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK         0xc0
2966 #define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK         0x01
2967 #define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK                0x02
2968 #define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK                0x04
2969 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK             0x08
2970 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK             0x10
2971 #define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK                  0x20
2972 #define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK          0x40
2973 #define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK                    0x80
2974
2975 #define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO               0x01
2976 #define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP                      0x02
2977 #define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP            0x04
2978 #define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI      0x08
2979 #define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK                      0xf0
2980
2981 #define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK            0x01
2982 #define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP         0x02
2983 #define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP         0x04
2984 #define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT            0x08
2985 #define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK      0x30
2986 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US     0
2987 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US     1
2988 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US    2
2989 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US    3
2990
2991 /* Maximum number of supported EHT LTF is split */
2992 #define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK        0xc0
2993 #define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF               0x40
2994 #define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK        0x07
2995
2996 #define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK                  0x78
2997 #define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP                0x80
2998
2999 #define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW        0x01
3000 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ       0x02
3001 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ      0x04
3002 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ      0x08
3003 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ              0x10
3004 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ             0x20
3005 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ             0x40
3006 #define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT      0x80
3007
3008 #define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA     0x01
3009 #define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA     0x02
3010
3011 /*
3012  * EHT operation channel width as defined in P802.11be_D2.0 section 9.4.2.311
3013  */
3014 #define IEEE80211_EHT_OPER_CHAN_WIDTH           0x7
3015 #define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ     0
3016 #define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ     1
3017 #define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ     2
3018 #define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ    3
3019 #define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ    4
3020
3021 /* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
3022 static inline u8
3023 ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
3024                            const struct ieee80211_eht_cap_elem_fixed *eht_cap,
3025                            bool from_ap)
3026 {
3027         u8 count = 0;
3028
3029         /* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
3030         if (he_cap->phy_cap_info[0] &
3031             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
3032                 return 3;
3033
3034         /* on 2.4 GHz, these three bits are reserved, so should be 0 */
3035         if (he_cap->phy_cap_info[0] &
3036             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
3037                 count += 3;
3038
3039         if (he_cap->phy_cap_info[0] &
3040             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
3041                 count += 3;
3042
3043         if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
3044                 count += 3;
3045
3046         if (count)
3047                 return count;
3048
3049         return from_ap ? 3 : 4;
3050 }
3051
3052 /* 802.11be EHT PPE Thresholds */
3053 #define IEEE80211_EHT_PPE_THRES_NSS_POS                 0
3054 #define IEEE80211_EHT_PPE_THRES_NSS_MASK                0xf
3055 #define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK   0x1f0
3056 #define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE          3
3057 #define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE        9
3058
3059 /*
3060  * Calculate 802.11be EHT capabilities IE EHT field size
3061  */
3062 static inline u8
3063 ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
3064 {
3065         u32 n;
3066
3067         if (!(phy_cap_info[5] &
3068               IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
3069                 return 0;
3070
3071         n = hweight16(ppe_thres_hdr &
3072                       IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
3073         n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
3074
3075         /*
3076          * Each pair is 6 bits, and we need to add the 9 "header" bits to the
3077          * total size.
3078          */
3079         n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
3080             IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
3081         return DIV_ROUND_UP(n, 8);
3082 }
3083
3084 static inline bool
3085 ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
3086                            bool from_ap)
3087 {
3088         const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
3089         u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
3090
3091         if (len < needed || !he_capa)
3092                 return false;
3093
3094         needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
3095                                              (const void *)data,
3096                                              from_ap);
3097         if (len < needed)
3098                 return false;
3099
3100         if (elem->phy_cap_info[5] &
3101                         IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
3102                 u16 ppe_thres_hdr;
3103
3104                 if (len < needed + sizeof(ppe_thres_hdr))
3105                         return false;
3106
3107                 ppe_thres_hdr = get_unaligned_le16(data + needed);
3108                 needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
3109                                                  elem->phy_cap_info);
3110         }
3111
3112         return len >= needed;
3113 }
3114
3115 static inline bool
3116 ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
3117 {
3118         const struct ieee80211_eht_operation *elem = (const void *)data;
3119         u8 needed = sizeof(*elem);
3120
3121         if (len < needed)
3122                 return false;
3123
3124         if (elem->params & IEEE80211_EHT_OPER_INFO_PRESENT) {
3125                 needed += 3;
3126
3127                 if (elem->params &
3128                     IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
3129                         needed += 2;
3130         }
3131
3132         return len >= needed;
3133 }
3134
3135 #define LISTEN_INT_USF  GENMASK(15, 14)
3136 #define LISTEN_INT_UI   GENMASK(13, 0)
3137
3138 #define IEEE80211_MAX_USF       FIELD_MAX(LISTEN_INT_USF)
3139 #define IEEE80211_MAX_UI        FIELD_MAX(LISTEN_INT_UI)
3140
3141 /* Authentication algorithms */
3142 #define WLAN_AUTH_OPEN 0
3143 #define WLAN_AUTH_SHARED_KEY 1
3144 #define WLAN_AUTH_FT 2
3145 #define WLAN_AUTH_SAE 3
3146 #define WLAN_AUTH_FILS_SK 4
3147 #define WLAN_AUTH_FILS_SK_PFS 5
3148 #define WLAN_AUTH_FILS_PK 6
3149 #define WLAN_AUTH_LEAP 128
3150
3151 #define WLAN_AUTH_CHALLENGE_LEN 128
3152
3153 #define WLAN_CAPABILITY_ESS             (1<<0)
3154 #define WLAN_CAPABILITY_IBSS            (1<<1)
3155
3156 /*
3157  * A mesh STA sets the ESS and IBSS capability bits to zero.
3158  * however, this holds true for p2p probe responses (in the p2p_find
3159  * phase) as well.
3160  */
3161 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
3162         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
3163
3164 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
3165 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
3166 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
3167 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
3168 #define WLAN_CAPABILITY_PBCC            (1<<6)
3169 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
3170
3171 /* 802.11h */
3172 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
3173 #define WLAN_CAPABILITY_QOS             (1<<9)
3174 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
3175 #define WLAN_CAPABILITY_APSD            (1<<11)
3176 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
3177 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
3178 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
3179 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
3180
3181 /* DMG (60gHz) 802.11ad */
3182 /* type - bits 0..1 */
3183 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
3184 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
3185 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
3186 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
3187
3188 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
3189 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
3190 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
3191 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
3192
3193 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
3194 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
3195
3196 /* measurement */
3197 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
3198 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
3199 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
3200
3201 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
3202 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
3203 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
3204 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI        8
3205 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC      11
3206
3207 /* 802.11g ERP information element */
3208 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
3209 #define WLAN_ERP_USE_PROTECTION (1<<1)
3210 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
3211
3212 /* WLAN_ERP_BARKER_PREAMBLE values */
3213 enum {
3214         WLAN_ERP_PREAMBLE_SHORT = 0,
3215         WLAN_ERP_PREAMBLE_LONG = 1,
3216 };
3217
3218 /* Band ID, 802.11ad #8.4.1.45 */
3219 enum {
3220         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
3221         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
3222         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
3223         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
3224         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
3225         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
3226 };
3227
3228 /* Status codes */
3229 enum ieee80211_statuscode {
3230         WLAN_STATUS_SUCCESS = 0,
3231         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
3232         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
3233         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
3234         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
3235         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
3236         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
3237         WLAN_STATUS_CHALLENGE_FAIL = 15,
3238         WLAN_STATUS_AUTH_TIMEOUT = 16,
3239         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
3240         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
3241         /* 802.11b */
3242         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
3243         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
3244         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
3245         /* 802.11h */
3246         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
3247         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
3248         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
3249         /* 802.11g */
3250         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
3251         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
3252         /* 802.11w */
3253         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
3254         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
3255         /* 802.11i */
3256         WLAN_STATUS_INVALID_IE = 40,
3257         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
3258         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
3259         WLAN_STATUS_INVALID_AKMP = 43,
3260         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
3261         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
3262         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
3263         /* 802.11e */
3264         WLAN_STATUS_UNSPECIFIED_QOS = 32,
3265         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
3266         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
3267         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
3268         WLAN_STATUS_REQUEST_DECLINED = 37,
3269         WLAN_STATUS_INVALID_QOS_PARAM = 38,
3270         WLAN_STATUS_CHANGE_TSPEC = 39,
3271         WLAN_STATUS_WAIT_TS_DELAY = 47,
3272         WLAN_STATUS_NO_DIRECT_LINK = 48,
3273         WLAN_STATUS_STA_NOT_PRESENT = 49,
3274         WLAN_STATUS_STA_NOT_QSTA = 50,
3275         /* 802.11s */
3276         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
3277         WLAN_STATUS_FCG_NOT_SUPP = 78,
3278         WLAN_STATUS_STA_NO_TBTT = 78,
3279         /* 802.11ad */
3280         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
3281         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
3282         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
3283         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
3284         WLAN_STATUS_PERFORMING_FST_NOW = 87,
3285         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
3286         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
3287         WLAN_STATUS_REJECT_DSE_BAND = 96,
3288         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
3289         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
3290         /* 802.11ai */
3291         WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
3292         WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
3293         WLAN_STATUS_SAE_HASH_TO_ELEMENT = 126,
3294         WLAN_STATUS_SAE_PK = 127,
3295 };
3296
3297
3298 /* Reason codes */
3299 enum ieee80211_reasoncode {
3300         WLAN_REASON_UNSPECIFIED = 1,
3301         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
3302         WLAN_REASON_DEAUTH_LEAVING = 3,
3303         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
3304         WLAN_REASON_DISASSOC_AP_BUSY = 5,
3305         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
3306         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
3307         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
3308         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
3309         /* 802.11h */
3310         WLAN_REASON_DISASSOC_BAD_POWER = 10,
3311         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
3312         /* 802.11i */
3313         WLAN_REASON_INVALID_IE = 13,
3314         WLAN_REASON_MIC_FAILURE = 14,
3315         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
3316         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
3317         WLAN_REASON_IE_DIFFERENT = 17,
3318         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
3319         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
3320         WLAN_REASON_INVALID_AKMP = 20,
3321         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
3322         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
3323         WLAN_REASON_IEEE8021X_FAILED = 23,
3324         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
3325         /* TDLS (802.11z) */
3326         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
3327         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
3328         /* 802.11e */
3329         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
3330         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
3331         WLAN_REASON_DISASSOC_LOW_ACK = 34,
3332         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
3333         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
3334         WLAN_REASON_QSTA_NOT_USE = 37,
3335         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
3336         WLAN_REASON_QSTA_TIMEOUT = 39,
3337         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
3338         /* 802.11s */
3339         WLAN_REASON_MESH_PEER_CANCELED = 52,
3340         WLAN_REASON_MESH_MAX_PEERS = 53,
3341         WLAN_REASON_MESH_CONFIG = 54,
3342         WLAN_REASON_MESH_CLOSE = 55,
3343         WLAN_REASON_MESH_MAX_RETRIES = 56,
3344         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
3345         WLAN_REASON_MESH_INVALID_GTK = 58,
3346         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
3347         WLAN_REASON_MESH_INVALID_SECURITY = 60,
3348         WLAN_REASON_MESH_PATH_ERROR = 61,
3349         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
3350         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
3351         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
3352         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
3353         WLAN_REASON_MESH_CHAN = 66,
3354 };
3355
3356
3357 /* Information Element IDs */
3358 enum ieee80211_eid {
3359         WLAN_EID_SSID = 0,
3360         WLAN_EID_SUPP_RATES = 1,
3361         WLAN_EID_FH_PARAMS = 2, /* reserved now */
3362         WLAN_EID_DS_PARAMS = 3,
3363         WLAN_EID_CF_PARAMS = 4,
3364         WLAN_EID_TIM = 5,
3365         WLAN_EID_IBSS_PARAMS = 6,
3366         WLAN_EID_COUNTRY = 7,
3367         /* 8, 9 reserved */
3368         WLAN_EID_REQUEST = 10,
3369         WLAN_EID_QBSS_LOAD = 11,
3370         WLAN_EID_EDCA_PARAM_SET = 12,
3371         WLAN_EID_TSPEC = 13,
3372         WLAN_EID_TCLAS = 14,
3373         WLAN_EID_SCHEDULE = 15,
3374         WLAN_EID_CHALLENGE = 16,
3375         /* 17-31 reserved for challenge text extension */
3376         WLAN_EID_PWR_CONSTRAINT = 32,
3377         WLAN_EID_PWR_CAPABILITY = 33,
3378         WLAN_EID_TPC_REQUEST = 34,
3379         WLAN_EID_TPC_REPORT = 35,
3380         WLAN_EID_SUPPORTED_CHANNELS = 36,
3381         WLAN_EID_CHANNEL_SWITCH = 37,
3382         WLAN_EID_MEASURE_REQUEST = 38,
3383         WLAN_EID_MEASURE_REPORT = 39,
3384         WLAN_EID_QUIET = 40,
3385         WLAN_EID_IBSS_DFS = 41,
3386         WLAN_EID_ERP_INFO = 42,
3387         WLAN_EID_TS_DELAY = 43,
3388         WLAN_EID_TCLAS_PROCESSING = 44,
3389         WLAN_EID_HT_CAPABILITY = 45,
3390         WLAN_EID_QOS_CAPA = 46,
3391         /* 47 reserved for Broadcom */
3392         WLAN_EID_RSN = 48,
3393         WLAN_EID_802_15_COEX = 49,
3394         WLAN_EID_EXT_SUPP_RATES = 50,
3395         WLAN_EID_AP_CHAN_REPORT = 51,
3396         WLAN_EID_NEIGHBOR_REPORT = 52,
3397         WLAN_EID_RCPI = 53,
3398         WLAN_EID_MOBILITY_DOMAIN = 54,
3399         WLAN_EID_FAST_BSS_TRANSITION = 55,
3400         WLAN_EID_TIMEOUT_INTERVAL = 56,
3401         WLAN_EID_RIC_DATA = 57,
3402         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
3403         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
3404         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
3405         WLAN_EID_HT_OPERATION = 61,
3406         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
3407         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
3408         WLAN_EID_ANTENNA_INFO = 64,
3409         WLAN_EID_RSNI = 65,
3410         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
3411         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
3412         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
3413         WLAN_EID_TIME_ADVERTISEMENT = 69,
3414         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
3415         WLAN_EID_MULTIPLE_BSSID = 71,
3416         WLAN_EID_BSS_COEX_2040 = 72,
3417         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
3418         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
3419         WLAN_EID_RIC_DESCRIPTOR = 75,
3420         WLAN_EID_MMIE = 76,
3421         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
3422         WLAN_EID_EVENT_REQUEST = 78,
3423         WLAN_EID_EVENT_REPORT = 79,
3424         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
3425         WLAN_EID_DIAGNOSTIC_REPORT = 81,
3426         WLAN_EID_LOCATION_PARAMS = 82,
3427         WLAN_EID_NON_TX_BSSID_CAP =  83,
3428         WLAN_EID_SSID_LIST = 84,
3429         WLAN_EID_MULTI_BSSID_IDX = 85,
3430         WLAN_EID_FMS_DESCRIPTOR = 86,
3431         WLAN_EID_FMS_REQUEST = 87,
3432         WLAN_EID_FMS_RESPONSE = 88,
3433         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
3434         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
3435         WLAN_EID_TSF_REQUEST = 91,
3436         WLAN_EID_TSF_RESPOSNE = 92,
3437         WLAN_EID_WNM_SLEEP_MODE = 93,
3438         WLAN_EID_TIM_BCAST_REQ = 94,
3439         WLAN_EID_TIM_BCAST_RESP = 95,
3440         WLAN_EID_COLL_IF_REPORT = 96,
3441         WLAN_EID_CHANNEL_USAGE = 97,
3442         WLAN_EID_TIME_ZONE = 98,
3443         WLAN_EID_DMS_REQUEST = 99,
3444         WLAN_EID_DMS_RESPONSE = 100,
3445         WLAN_EID_LINK_ID = 101,
3446         WLAN_EID_WAKEUP_SCHEDUL = 102,
3447         /* 103 reserved */
3448         WLAN_EID_CHAN_SWITCH_TIMING = 104,
3449         WLAN_EID_PTI_CONTROL = 105,
3450         WLAN_EID_PU_BUFFER_STATUS = 106,
3451         WLAN_EID_INTERWORKING = 107,
3452         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
3453         WLAN_EID_EXPEDITED_BW_REQ = 109,
3454         WLAN_EID_QOS_MAP_SET = 110,
3455         WLAN_EID_ROAMING_CONSORTIUM = 111,
3456         WLAN_EID_EMERGENCY_ALERT = 112,
3457         WLAN_EID_MESH_CONFIG = 113,
3458         WLAN_EID_MESH_ID = 114,
3459         WLAN_EID_LINK_METRIC_REPORT = 115,
3460         WLAN_EID_CONGESTION_NOTIFICATION = 116,
3461         WLAN_EID_PEER_MGMT = 117,
3462         WLAN_EID_CHAN_SWITCH_PARAM = 118,
3463         WLAN_EID_MESH_AWAKE_WINDOW = 119,
3464         WLAN_EID_BEACON_TIMING = 120,
3465         WLAN_EID_MCCAOP_SETUP_REQ = 121,
3466         WLAN_EID_MCCAOP_SETUP_RESP = 122,
3467         WLAN_EID_MCCAOP_ADVERT = 123,
3468         WLAN_EID_MCCAOP_TEARDOWN = 124,
3469         WLAN_EID_GANN = 125,
3470         WLAN_EID_RANN = 126,
3471         WLAN_EID_EXT_CAPABILITY = 127,
3472         /* 128, 129 reserved for Agere */
3473         WLAN_EID_PREQ = 130,
3474         WLAN_EID_PREP = 131,
3475         WLAN_EID_PERR = 132,
3476         /* 133-136 reserved for Cisco */
3477         WLAN_EID_PXU = 137,
3478         WLAN_EID_PXUC = 138,
3479         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
3480         WLAN_EID_MIC = 140,
3481         WLAN_EID_DESTINATION_URI = 141,
3482         WLAN_EID_UAPSD_COEX = 142,
3483         WLAN_EID_WAKEUP_SCHEDULE = 143,
3484         WLAN_EID_EXT_SCHEDULE = 144,
3485         WLAN_EID_STA_AVAILABILITY = 145,
3486         WLAN_EID_DMG_TSPEC = 146,
3487         WLAN_EID_DMG_AT = 147,
3488         WLAN_EID_DMG_CAP = 148,
3489         /* 149 reserved for Cisco */
3490         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
3491         WLAN_EID_DMG_OPERATION = 151,
3492         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
3493         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
3494         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
3495         /* 155-156 reserved for Cisco */
3496         WLAN_EID_AWAKE_WINDOW = 157,
3497         WLAN_EID_MULTI_BAND = 158,
3498         WLAN_EID_ADDBA_EXT = 159,
3499         WLAN_EID_NEXT_PCP_LIST = 160,
3500         WLAN_EID_PCP_HANDOVER = 161,
3501         WLAN_EID_DMG_LINK_MARGIN = 162,
3502         WLAN_EID_SWITCHING_STREAM = 163,
3503         WLAN_EID_SESSION_TRANSITION = 164,
3504         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
3505         WLAN_EID_CLUSTER_REPORT = 166,
3506         WLAN_EID_RELAY_CAP = 167,
3507         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
3508         WLAN_EID_BEAM_LINK_MAINT = 169,
3509         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
3510         WLAN_EID_U_PID = 171,
3511         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
3512         /* 173 reserved for Symbol */
3513         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
3514         WLAN_EID_QUIET_PERIOD_REQ = 175,
3515         /* 176 reserved for Symbol */
3516         WLAN_EID_QUIET_PERIOD_RESP = 177,
3517         /* 178-179 reserved for Symbol */
3518         /* 180 reserved for ISO/IEC 20011 */
3519         WLAN_EID_EPAC_POLICY = 182,
3520         WLAN_EID_CLISTER_TIME_OFF = 183,
3521         WLAN_EID_INTER_AC_PRIO = 184,
3522         WLAN_EID_SCS_DESCRIPTOR = 185,
3523         WLAN_EID_QLOAD_REPORT = 186,
3524         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
3525         WLAN_EID_HL_STREAM_ID = 188,
3526         WLAN_EID_GCR_GROUP_ADDR = 189,
3527         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
3528         WLAN_EID_VHT_CAPABILITY = 191,
3529         WLAN_EID_VHT_OPERATION = 192,
3530         WLAN_EID_EXTENDED_BSS_LOAD = 193,
3531         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
3532         WLAN_EID_TX_POWER_ENVELOPE = 195,
3533         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
3534         WLAN_EID_AID = 197,
3535         WLAN_EID_QUIET_CHANNEL = 198,
3536         WLAN_EID_OPMODE_NOTIF = 199,
3537
3538         WLAN_EID_REDUCED_NEIGHBOR_REPORT = 201,
3539
3540         WLAN_EID_AID_REQUEST = 210,
3541         WLAN_EID_AID_RESPONSE = 211,
3542         WLAN_EID_S1G_BCN_COMPAT = 213,
3543         WLAN_EID_S1G_SHORT_BCN_INTERVAL = 214,
3544         WLAN_EID_S1G_TWT = 216,
3545         WLAN_EID_S1G_CAPABILITIES = 217,
3546         WLAN_EID_VENDOR_SPECIFIC = 221,
3547         WLAN_EID_QOS_PARAMETER = 222,
3548         WLAN_EID_S1G_OPERATION = 232,
3549         WLAN_EID_CAG_NUMBER = 237,
3550         WLAN_EID_AP_CSN = 239,
3551         WLAN_EID_FILS_INDICATION = 240,
3552         WLAN_EID_DILS = 241,
3553         WLAN_EID_FRAGMENT = 242,
3554         WLAN_EID_RSNX = 244,
3555         WLAN_EID_EXTENSION = 255
3556 };
3557
3558 /* Element ID Extensions for Element ID 255 */
3559 enum ieee80211_eid_ext {
3560         WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
3561         WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
3562         WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
3563         WLAN_EID_EXT_FILS_SESSION = 4,
3564         WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
3565         WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
3566         WLAN_EID_EXT_KEY_DELIVERY = 7,
3567         WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
3568         WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
3569         WLAN_EID_EXT_FILS_NONCE = 13,
3570         WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
3571         WLAN_EID_EXT_HE_CAPABILITY = 35,
3572         WLAN_EID_EXT_HE_OPERATION = 36,
3573         WLAN_EID_EXT_UORA = 37,
3574         WLAN_EID_EXT_HE_MU_EDCA = 38,
3575         WLAN_EID_EXT_HE_SPR = 39,
3576         WLAN_EID_EXT_NDP_FEEDBACK_REPORT_PARAMSET = 41,
3577         WLAN_EID_EXT_BSS_COLOR_CHG_ANN = 42,
3578         WLAN_EID_EXT_QUIET_TIME_PERIOD_SETUP = 43,
3579         WLAN_EID_EXT_ESS_REPORT = 45,
3580         WLAN_EID_EXT_OPS = 46,
3581         WLAN_EID_EXT_HE_BSS_LOAD = 47,
3582         WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME = 52,
3583         WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION = 55,
3584         WLAN_EID_EXT_NON_INHERITANCE = 56,
3585         WLAN_EID_EXT_KNOWN_BSSID = 57,
3586         WLAN_EID_EXT_SHORT_SSID_LIST = 58,
3587         WLAN_EID_EXT_HE_6GHZ_CAPA = 59,
3588         WLAN_EID_EXT_UL_MU_POWER_CAPA = 60,
3589         WLAN_EID_EXT_EHT_OPERATION = 106,
3590         WLAN_EID_EXT_EHT_MULTI_LINK = 107,
3591         WLAN_EID_EXT_EHT_CAPABILITY = 108,
3592 };
3593
3594 /* Action category code */
3595 enum ieee80211_category {
3596         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
3597         WLAN_CATEGORY_QOS = 1,
3598         WLAN_CATEGORY_DLS = 2,
3599         WLAN_CATEGORY_BACK = 3,
3600         WLAN_CATEGORY_PUBLIC = 4,
3601         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
3602         WLAN_CATEGORY_FAST_BBS_TRANSITION = 6,
3603         WLAN_CATEGORY_HT = 7,
3604         WLAN_CATEGORY_SA_QUERY = 8,
3605         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
3606         WLAN_CATEGORY_WNM = 10,
3607         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
3608         WLAN_CATEGORY_TDLS = 12,
3609         WLAN_CATEGORY_MESH_ACTION = 13,
3610         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
3611         WLAN_CATEGORY_SELF_PROTECTED = 15,
3612         WLAN_CATEGORY_DMG = 16,
3613         WLAN_CATEGORY_WMM = 17,
3614         WLAN_CATEGORY_FST = 18,
3615         WLAN_CATEGORY_UNPROT_DMG = 20,
3616         WLAN_CATEGORY_VHT = 21,
3617         WLAN_CATEGORY_S1G = 22,
3618         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
3619         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
3620 };
3621
3622 /* SPECTRUM_MGMT action code */
3623 enum ieee80211_spectrum_mgmt_actioncode {
3624         WLAN_ACTION_SPCT_MSR_REQ = 0,
3625         WLAN_ACTION_SPCT_MSR_RPRT = 1,
3626         WLAN_ACTION_SPCT_TPC_REQ = 2,
3627         WLAN_ACTION_SPCT_TPC_RPRT = 3,
3628         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
3629 };
3630
3631 /* HT action codes */
3632 enum ieee80211_ht_actioncode {
3633         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
3634         WLAN_HT_ACTION_SMPS = 1,
3635         WLAN_HT_ACTION_PSMP = 2,
3636         WLAN_HT_ACTION_PCO_PHASE = 3,
3637         WLAN_HT_ACTION_CSI = 4,
3638         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
3639         WLAN_HT_ACTION_COMPRESSED_BF = 6,
3640         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
3641 };
3642
3643 /* VHT action codes */
3644 enum ieee80211_vht_actioncode {
3645         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
3646         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
3647         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
3648 };
3649
3650 /* Self Protected Action codes */
3651 enum ieee80211_self_protected_actioncode {
3652         WLAN_SP_RESERVED = 0,
3653         WLAN_SP_MESH_PEERING_OPEN = 1,
3654         WLAN_SP_MESH_PEERING_CONFIRM = 2,
3655         WLAN_SP_MESH_PEERING_CLOSE = 3,
3656         WLAN_SP_MGK_INFORM = 4,
3657         WLAN_SP_MGK_ACK = 5,
3658 };
3659
3660 /* Mesh action codes */
3661 enum ieee80211_mesh_actioncode {
3662         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
3663         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
3664         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
3665         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
3666         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
3667         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
3668         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
3669         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
3670         WLAN_MESH_ACTION_MCCA_TEARDOWN,
3671         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
3672         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
3673 };
3674
3675 /* Unprotected WNM action codes */
3676 enum ieee80211_unprotected_wnm_actioncode {
3677         WLAN_UNPROTECTED_WNM_ACTION_TIM = 0,
3678         WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE = 1,
3679 };
3680
3681 /* Security key length */
3682 enum ieee80211_key_len {
3683         WLAN_KEY_LEN_WEP40 = 5,
3684         WLAN_KEY_LEN_WEP104 = 13,
3685         WLAN_KEY_LEN_CCMP = 16,
3686         WLAN_KEY_LEN_CCMP_256 = 32,
3687         WLAN_KEY_LEN_TKIP = 32,
3688         WLAN_KEY_LEN_AES_CMAC = 16,
3689         WLAN_KEY_LEN_SMS4 = 32,
3690         WLAN_KEY_LEN_GCMP = 16,
3691         WLAN_KEY_LEN_GCMP_256 = 32,
3692         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
3693         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
3694         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
3695 };
3696
3697 enum ieee80211_s1g_actioncode {
3698         WLAN_S1G_AID_SWITCH_REQUEST,
3699         WLAN_S1G_AID_SWITCH_RESPONSE,
3700         WLAN_S1G_SYNC_CONTROL,
3701         WLAN_S1G_STA_INFO_ANNOUNCE,
3702         WLAN_S1G_EDCA_PARAM_SET,
3703         WLAN_S1G_EL_OPERATION,
3704         WLAN_S1G_TWT_SETUP,
3705         WLAN_S1G_TWT_TEARDOWN,
3706         WLAN_S1G_SECT_GROUP_ID_LIST,
3707         WLAN_S1G_SECT_ID_FEEDBACK,
3708         WLAN_S1G_TWT_INFORMATION = 11,
3709 };
3710
3711 #define IEEE80211_WEP_IV_LEN            4
3712 #define IEEE80211_WEP_ICV_LEN           4
3713 #define IEEE80211_CCMP_HDR_LEN          8
3714 #define IEEE80211_CCMP_MIC_LEN          8
3715 #define IEEE80211_CCMP_PN_LEN           6
3716 #define IEEE80211_CCMP_256_HDR_LEN      8
3717 #define IEEE80211_CCMP_256_MIC_LEN      16
3718 #define IEEE80211_CCMP_256_PN_LEN       6
3719 #define IEEE80211_TKIP_IV_LEN           8
3720 #define IEEE80211_TKIP_ICV_LEN          4
3721 #define IEEE80211_CMAC_PN_LEN           6
3722 #define IEEE80211_GMAC_PN_LEN           6
3723 #define IEEE80211_GCMP_HDR_LEN          8
3724 #define IEEE80211_GCMP_MIC_LEN          16
3725 #define IEEE80211_GCMP_PN_LEN           6
3726
3727 #define FILS_NONCE_LEN                  16
3728 #define FILS_MAX_KEK_LEN                64
3729
3730 #define FILS_ERP_MAX_USERNAME_LEN       16
3731 #define FILS_ERP_MAX_REALM_LEN          253
3732 #define FILS_ERP_MAX_RRK_LEN            64
3733
3734 #define PMK_MAX_LEN                     64
3735 #define SAE_PASSWORD_MAX_LEN            128
3736
3737 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
3738 enum ieee80211_pub_actioncode {
3739         WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
3740         WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
3741         WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
3742         WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
3743         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
3744         WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
3745         WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
3746         WLAN_PUB_ACTION_MSMT_PILOT = 7,
3747         WLAN_PUB_ACTION_DSE_PC = 8,
3748         WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
3749         WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
3750         WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
3751         WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
3752         WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
3753         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
3754         WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
3755         WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
3756         WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
3757         WLAN_PUB_ACTION_QMF_POLICY = 18,
3758         WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
3759         WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
3760         WLAN_PUB_ACTION_QLOAD_REPORT = 21,
3761         WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
3762         WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
3763         WLAN_PUB_ACTION_PUBLIC_KEY = 24,
3764         WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
3765         WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
3766         WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
3767         WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
3768         WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
3769         WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
3770         WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
3771         WLAN_PUB_ACTION_FTM_REQUEST = 32,
3772         WLAN_PUB_ACTION_FTM_RESPONSE = 33,
3773         WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
3774 };
3775
3776 /* TDLS action codes */
3777 enum ieee80211_tdls_actioncode {
3778         WLAN_TDLS_SETUP_REQUEST = 0,
3779         WLAN_TDLS_SETUP_RESPONSE = 1,
3780         WLAN_TDLS_SETUP_CONFIRM = 2,
3781         WLAN_TDLS_TEARDOWN = 3,
3782         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
3783         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
3784         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
3785         WLAN_TDLS_PEER_PSM_REQUEST = 7,
3786         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
3787         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
3788         WLAN_TDLS_DISCOVERY_REQUEST = 10,
3789 };
3790
3791 /* Extended Channel Switching capability to be set in the 1st byte of
3792  * the @WLAN_EID_EXT_CAPABILITY information element
3793  */
3794 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
3795
3796 /* Multiple BSSID capability is set in the 6th bit of 3rd byte of the
3797  * @WLAN_EID_EXT_CAPABILITY information element
3798  */
3799 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT      BIT(6)
3800
3801 /* Timing Measurement protocol for time sync is set in the 7th bit of 3rd byte
3802  * of the @WLAN_EID_EXT_CAPABILITY information element
3803  */
3804 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT       BIT(7)
3805
3806 /* TDLS capabilities in the 4th byte of @WLAN_EID_EXT_CAPABILITY */
3807 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
3808 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
3809 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
3810
3811 /* Interworking capabilities are set in 7th bit of 4th byte of the
3812  * @WLAN_EID_EXT_CAPABILITY information element
3813  */
3814 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
3815
3816 /*
3817  * TDLS capabililites to be enabled in the 5th byte of the
3818  * @WLAN_EID_EXT_CAPABILITY information element
3819  */
3820 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
3821 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
3822 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
3823
3824 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
3825 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
3826
3827 /* Defines the maximal number of MSDUs in an A-MSDU. */
3828 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
3829 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
3830
3831 /*
3832  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
3833  * information element
3834  */
3835 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
3836
3837 /* Defines support for TWT Requester and TWT Responder */
3838 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT   BIT(5)
3839 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT   BIT(6)
3840
3841 /*
3842  * When set, indicates that the AP is able to tolerate 26-tone RU UL
3843  * OFDMA transmissions using HE TB PPDU from OBSS (not falsely classify the
3844  * 26-tone RU UL OFDMA transmissions as radar pulses).
3845  */
3846 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(7)
3847
3848 /* Defines support for enhanced multi-bssid advertisement*/
3849 #define WLAN_EXT_CAPA11_EMA_SUPPORT     BIT(3)
3850
3851 /* TDLS specific payload type in the LLC/SNAP header */
3852 #define WLAN_TDLS_SNAP_RFTYPE   0x2
3853
3854 /* BSS Coex IE information field bits */
3855 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
3856
3857 /**
3858  * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
3859  *
3860  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
3861  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
3862  *      that will be specified in a vendor specific information element
3863  */
3864 enum ieee80211_mesh_sync_method {
3865         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
3866         IEEE80211_SYNC_METHOD_VENDOR = 255,
3867 };
3868
3869 /**
3870  * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
3871  *
3872  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
3873  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
3874  *      be specified in a vendor specific information element
3875  */
3876 enum ieee80211_mesh_path_protocol {
3877         IEEE80211_PATH_PROTOCOL_HWMP = 1,
3878         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
3879 };
3880
3881 /**
3882  * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
3883  *
3884  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
3885  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
3886  *      specified in a vendor specific information element
3887  */
3888 enum ieee80211_mesh_path_metric {
3889         IEEE80211_PATH_METRIC_AIRTIME = 1,
3890         IEEE80211_PATH_METRIC_VENDOR = 255,
3891 };
3892
3893 /**
3894  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
3895  *
3896  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
3897  *
3898  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
3899  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
3900  *      this value
3901  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
3902  *      the proactive PREQ with proactive PREP subfield set to 0
3903  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
3904  *      supports the proactive PREQ with proactive PREP subfield set to 1
3905  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
3906  *      the proactive RANN
3907  */
3908 enum ieee80211_root_mode_identifier {
3909         IEEE80211_ROOTMODE_NO_ROOT = 0,
3910         IEEE80211_ROOTMODE_ROOT = 1,
3911         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
3912         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
3913         IEEE80211_PROACTIVE_RANN = 4,
3914 };
3915
3916 /*
3917  * IEEE 802.11-2007 7.3.2.9 Country information element
3918  *
3919  * Minimum length is 8 octets, ie len must be evenly
3920  * divisible by 2
3921  */
3922
3923 /* Although the spec says 8 I'm seeing 6 in practice */
3924 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
3925
3926 /* The Country String field of the element shall be 3 octets in length */
3927 #define IEEE80211_COUNTRY_STRING_LEN    3
3928
3929 /*
3930  * For regulatory extension stuff see IEEE 802.11-2007
3931  * Annex I (page 1141) and Annex J (page 1147). Also
3932  * review 7.3.2.9.
3933  *
3934  * When dot11RegulatoryClassesRequired is true and the
3935  * first_channel/reg_extension_id is >= 201 then the IE
3936  * compromises of the 'ext' struct represented below:
3937  *
3938  *  - Regulatory extension ID - when generating IE this just needs
3939  *    to be monotonically increasing for each triplet passed in
3940  *    the IE
3941  *  - Regulatory class - index into set of rules
3942  *  - Coverage class - index into air propagation time (Table 7-27),
3943  *    in microseconds, you can compute the air propagation time from
3944  *    the index by multiplying by 3, so index 10 yields a propagation
3945  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
3946  *    yet. A value of 0 inicates air propagation of <= 1 us.
3947  *
3948  *  See also Table I.2 for Emission limit sets and table
3949  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
3950  *  a reg_class to an emission limit set and behavior limit set.
3951  */
3952 #define IEEE80211_COUNTRY_EXTENSION_ID 201
3953
3954 /*
3955  *  Channels numbers in the IE must be monotonically increasing
3956  *  if dot11RegulatoryClassesRequired is not true.
3957  *
3958  *  If dot11RegulatoryClassesRequired is true consecutive
3959  *  subband triplets following a regulatory triplet shall
3960  *  have monotonically increasing first_channel number fields.
3961  *
3962  *  Channel numbers shall not overlap.
3963  *
3964  *  Note that max_power is signed.
3965  */
3966 struct ieee80211_country_ie_triplet {
3967         union {
3968                 struct {
3969                         u8 first_channel;
3970                         u8 num_channels;
3971                         s8 max_power;
3972                 } __packed chans;
3973                 struct {
3974                         u8 reg_extension_id;
3975                         u8 reg_class;
3976                         u8 coverage_class;
3977                 } __packed ext;
3978         };
3979 } __packed;
3980
3981 enum ieee80211_timeout_interval_type {
3982         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
3983         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
3984         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
3985 };
3986
3987 /**
3988  * struct ieee80211_timeout_interval_ie - Timeout Interval element
3989  * @type: type, see &enum ieee80211_timeout_interval_type
3990  * @value: timeout interval value
3991  */
3992 struct ieee80211_timeout_interval_ie {
3993         u8 type;
3994         __le32 value;
3995 } __packed;
3996
3997 /**
3998  * enum ieee80211_idle_options - BSS idle options
3999  * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
4000  *      protected frame to the AP to reset the idle timer at the AP for
4001  *      the station.
4002  */
4003 enum ieee80211_idle_options {
4004         WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
4005 };
4006
4007 /**
4008  * struct ieee80211_bss_max_idle_period_ie
4009  *
4010  * This structure refers to "BSS Max idle period element"
4011  *
4012  * @max_idle_period: indicates the time period during which a station can
4013  *      refrain from transmitting frames to its associated AP without being
4014  *      disassociated. In units of 1000 TUs.
4015  * @idle_options: indicates the options associated with the BSS idle capability
4016  *      as specified in &enum ieee80211_idle_options.
4017  */
4018 struct ieee80211_bss_max_idle_period_ie {
4019         __le16 max_idle_period;
4020         u8 idle_options;
4021 } __packed;
4022
4023 /* BACK action code */
4024 enum ieee80211_back_actioncode {
4025         WLAN_ACTION_ADDBA_REQ = 0,
4026         WLAN_ACTION_ADDBA_RESP = 1,
4027         WLAN_ACTION_DELBA = 2,
4028 };
4029
4030 /* BACK (block-ack) parties */
4031 enum ieee80211_back_parties {
4032         WLAN_BACK_RECIPIENT = 0,
4033         WLAN_BACK_INITIATOR = 1,
4034 };
4035
4036 /* SA Query action */
4037 enum ieee80211_sa_query_action {
4038         WLAN_ACTION_SA_QUERY_REQUEST = 0,
4039         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
4040 };
4041
4042 /**
4043  * struct ieee80211_bssid_index
4044  *
4045  * This structure refers to "Multiple BSSID-index element"
4046  *
4047  * @bssid_index: BSSID index
4048  * @dtim_period: optional, overrides transmitted BSS dtim period
4049  * @dtim_count: optional, overrides transmitted BSS dtim count
4050  */
4051 struct ieee80211_bssid_index {
4052         u8 bssid_index;
4053         u8 dtim_period;
4054         u8 dtim_count;
4055 };
4056
4057 /**
4058  * struct ieee80211_multiple_bssid_configuration
4059  *
4060  * This structure refers to "Multiple BSSID Configuration element"
4061  *
4062  * @bssid_count: total number of active BSSIDs in the set
4063  * @profile_periodicity: the least number of beacon frames need to be received
4064  *      in order to discover all the nontransmitted BSSIDs in the set.
4065  */
4066 struct ieee80211_multiple_bssid_configuration {
4067         u8 bssid_count;
4068         u8 profile_periodicity;
4069 };
4070
4071 #define SUITE(oui, id)  (((oui) << 8) | (id))
4072
4073 /* cipher suite selectors */
4074 #define WLAN_CIPHER_SUITE_USE_GROUP     SUITE(0x000FAC, 0)
4075 #define WLAN_CIPHER_SUITE_WEP40         SUITE(0x000FAC, 1)
4076 #define WLAN_CIPHER_SUITE_TKIP          SUITE(0x000FAC, 2)
4077 /* reserved:                            SUITE(0x000FAC, 3) */
4078 #define WLAN_CIPHER_SUITE_CCMP          SUITE(0x000FAC, 4)
4079 #define WLAN_CIPHER_SUITE_WEP104        SUITE(0x000FAC, 5)
4080 #define WLAN_CIPHER_SUITE_AES_CMAC      SUITE(0x000FAC, 6)
4081 #define WLAN_CIPHER_SUITE_GCMP          SUITE(0x000FAC, 8)
4082 #define WLAN_CIPHER_SUITE_GCMP_256      SUITE(0x000FAC, 9)
4083 #define WLAN_CIPHER_SUITE_CCMP_256      SUITE(0x000FAC, 10)
4084 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  SUITE(0x000FAC, 11)
4085 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  SUITE(0x000FAC, 12)
4086 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  SUITE(0x000FAC, 13)
4087
4088 #define WLAN_CIPHER_SUITE_SMS4          SUITE(0x001472, 1)
4089
4090 /* AKM suite selectors */
4091 #define WLAN_AKM_SUITE_8021X                    SUITE(0x000FAC, 1)
4092 #define WLAN_AKM_SUITE_PSK                      SUITE(0x000FAC, 2)
4093 #define WLAN_AKM_SUITE_FT_8021X                 SUITE(0x000FAC, 3)
4094 #define WLAN_AKM_SUITE_FT_PSK                   SUITE(0x000FAC, 4)
4095 #define WLAN_AKM_SUITE_8021X_SHA256             SUITE(0x000FAC, 5)
4096 #define WLAN_AKM_SUITE_PSK_SHA256               SUITE(0x000FAC, 6)
4097 #define WLAN_AKM_SUITE_TDLS                     SUITE(0x000FAC, 7)
4098 #define WLAN_AKM_SUITE_SAE                      SUITE(0x000FAC, 8)
4099 #define WLAN_AKM_SUITE_FT_OVER_SAE              SUITE(0x000FAC, 9)
4100 #define WLAN_AKM_SUITE_AP_PEER_KEY              SUITE(0x000FAC, 10)
4101 #define WLAN_AKM_SUITE_8021X_SUITE_B            SUITE(0x000FAC, 11)
4102 #define WLAN_AKM_SUITE_8021X_SUITE_B_192        SUITE(0x000FAC, 12)
4103 #define WLAN_AKM_SUITE_FT_8021X_SHA384          SUITE(0x000FAC, 13)
4104 #define WLAN_AKM_SUITE_FILS_SHA256              SUITE(0x000FAC, 14)
4105 #define WLAN_AKM_SUITE_FILS_SHA384              SUITE(0x000FAC, 15)
4106 #define WLAN_AKM_SUITE_FT_FILS_SHA256           SUITE(0x000FAC, 16)
4107 #define WLAN_AKM_SUITE_FT_FILS_SHA384           SUITE(0x000FAC, 17)
4108 #define WLAN_AKM_SUITE_OWE                      SUITE(0x000FAC, 18)
4109 #define WLAN_AKM_SUITE_FT_PSK_SHA384            SUITE(0x000FAC, 19)
4110 #define WLAN_AKM_SUITE_PSK_SHA384               SUITE(0x000FAC, 20)
4111
4112 #define WLAN_AKM_SUITE_WFA_DPP                  SUITE(WLAN_OUI_WFA, 2)
4113
4114 #define WLAN_MAX_KEY_LEN                32
4115
4116 #define WLAN_PMK_NAME_LEN               16
4117 #define WLAN_PMKID_LEN                  16
4118 #define WLAN_PMK_LEN_EAP_LEAP           16
4119 #define WLAN_PMK_LEN                    32
4120 #define WLAN_PMK_LEN_SUITE_B_192        48
4121
4122 #define WLAN_OUI_WFA                    0x506f9a
4123 #define WLAN_OUI_TYPE_WFA_P2P           9
4124 #define WLAN_OUI_TYPE_WFA_DPP           0x1A
4125 #define WLAN_OUI_MICROSOFT              0x0050f2
4126 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
4127 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
4128 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
4129 #define WLAN_OUI_TYPE_MICROSOFT_TPC     8
4130
4131 /*
4132  * WMM/802.11e Tspec Element
4133  */
4134 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
4135 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
4136
4137 enum ieee80211_tspec_status_code {
4138         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
4139         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
4140 };
4141
4142 struct ieee80211_tspec_ie {
4143         u8 element_id;
4144         u8 len;
4145         u8 oui[3];
4146         u8 oui_type;
4147         u8 oui_subtype;
4148         u8 version;
4149         __le16 tsinfo;
4150         u8 tsinfo_resvd;
4151         __le16 nominal_msdu;
4152         __le16 max_msdu;
4153         __le32 min_service_int;
4154         __le32 max_service_int;
4155         __le32 inactivity_int;
4156         __le32 suspension_int;
4157         __le32 service_start_time;
4158         __le32 min_data_rate;
4159         __le32 mean_data_rate;
4160         __le32 peak_data_rate;
4161         __le32 max_burst_size;
4162         __le32 delay_bound;
4163         __le32 min_phy_rate;
4164         __le16 sba;
4165         __le16 medium_time;
4166 } __packed;
4167
4168 struct ieee80211_he_6ghz_capa {
4169         /* uses IEEE80211_HE_6GHZ_CAP_* below */
4170         __le16 capa;
4171 } __packed;
4172
4173 /* HE 6 GHz band capabilities */
4174 /* uses enum ieee80211_min_mpdu_spacing values */
4175 #define IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START    0x0007
4176 /* uses enum ieee80211_vht_max_ampdu_length_exp values */
4177 #define IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP 0x0038
4178 /* uses IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_* values */
4179 #define IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN      0x00c0
4180 /* WLAN_HT_CAP_SM_PS_* values */
4181 #define IEEE80211_HE_6GHZ_CAP_SM_PS             0x0600
4182 #define IEEE80211_HE_6GHZ_CAP_RD_RESPONDER      0x0800
4183 #define IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS    0x1000
4184 #define IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS    0x2000
4185
4186 /**
4187  * ieee80211_get_qos_ctl - get pointer to qos control bytes
4188  * @hdr: the frame
4189  *
4190  * The qos ctrl bytes come after the frame_control, duration, seq_num
4191  * and 3 or 4 addresses of length ETH_ALEN. Checks frame_control to choose
4192  * between struct ieee80211_qos_hdr_4addr and struct ieee80211_qos_hdr.
4193  */
4194 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
4195 {
4196         union {
4197                 struct ieee80211_qos_hdr        addr3;
4198                 struct ieee80211_qos_hdr_4addr  addr4;
4199         } *qos;
4200
4201         qos = (void *)hdr;
4202         if (ieee80211_has_a4(qos->addr3.frame_control))
4203                 return (u8 *)&qos->addr4.qos_ctrl;
4204         else
4205                 return (u8 *)&qos->addr3.qos_ctrl;
4206 }
4207
4208 /**
4209  * ieee80211_get_tid - get qos TID
4210  * @hdr: the frame
4211  */
4212 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
4213 {
4214         u8 *qc = ieee80211_get_qos_ctl(hdr);
4215
4216         return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
4217 }
4218
4219 /**
4220  * ieee80211_get_SA - get pointer to SA
4221  * @hdr: the frame
4222  *
4223  * Given an 802.11 frame, this function returns the offset
4224  * to the source address (SA). It does not verify that the
4225  * header is long enough to contain the address, and the
4226  * header must be long enough to contain the frame control
4227  * field.
4228  */
4229 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
4230 {
4231         if (ieee80211_has_a4(hdr->frame_control))
4232                 return hdr->addr4;
4233         if (ieee80211_has_fromds(hdr->frame_control))
4234                 return hdr->addr3;
4235         return hdr->addr2;
4236 }
4237
4238 /**
4239  * ieee80211_get_DA - get pointer to DA
4240  * @hdr: the frame
4241  *
4242  * Given an 802.11 frame, this function returns the offset
4243  * to the destination address (DA). It does not verify that
4244  * the header is long enough to contain the address, and the
4245  * header must be long enough to contain the frame control
4246  * field.
4247  */
4248 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
4249 {
4250         if (ieee80211_has_tods(hdr->frame_control))
4251                 return hdr->addr3;
4252         else
4253                 return hdr->addr1;
4254 }
4255
4256 /**
4257  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
4258  * @skb: the skb to check, starting with the 802.11 header
4259  */
4260 static inline bool ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
4261 {
4262         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4263         __le16 fc = mgmt->frame_control;
4264
4265         /*
4266          * IEEE 802.11 REVme D2.0 definition of bufferable MMPDU;
4267          * note that this ignores the IBSS special case.
4268          */
4269         if (!ieee80211_is_mgmt(fc))
4270                 return false;
4271
4272         if (ieee80211_is_disassoc(fc) || ieee80211_is_deauth(fc))
4273                 return true;
4274
4275         if (!ieee80211_is_action(fc))
4276                 return false;
4277
4278         if (skb->len < offsetofend(typeof(*mgmt), u.action.u.ftm.action_code))
4279                 return true;
4280
4281         /* action frame - additionally check for non-bufferable FTM */
4282
4283         if (mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
4284             mgmt->u.action.category != WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION)
4285                 return true;
4286
4287         if (mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_REQUEST ||
4288             mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_RESPONSE)
4289                 return false;
4290
4291         return true;
4292 }
4293
4294 /**
4295  * _ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
4296  * @hdr: the frame (buffer must include at least the first octet of payload)
4297  */
4298 static inline bool _ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
4299 {
4300         if (ieee80211_is_disassoc(hdr->frame_control) ||
4301             ieee80211_is_deauth(hdr->frame_control))
4302                 return true;
4303
4304         if (ieee80211_is_action(hdr->frame_control)) {
4305                 u8 *category;
4306
4307                 /*
4308                  * Action frames, excluding Public Action frames, are Robust
4309                  * Management Frames. However, if we are looking at a Protected
4310                  * frame, skip the check since the data may be encrypted and
4311                  * the frame has already been found to be a Robust Management
4312                  * Frame (by the other end).
4313                  */
4314                 if (ieee80211_has_protected(hdr->frame_control))
4315                         return true;
4316                 category = ((u8 *) hdr) + 24;
4317                 return *category != WLAN_CATEGORY_PUBLIC &&
4318                         *category != WLAN_CATEGORY_HT &&
4319                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
4320                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
4321                         *category != WLAN_CATEGORY_UNPROT_DMG &&
4322                         *category != WLAN_CATEGORY_VHT &&
4323                         *category != WLAN_CATEGORY_S1G &&
4324                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
4325         }
4326
4327         return false;
4328 }
4329
4330 /**
4331  * ieee80211_is_robust_mgmt_frame - check if skb contains a robust mgmt frame
4332  * @skb: the skb containing the frame, length will be checked
4333  */
4334 static inline bool ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
4335 {
4336         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4337                 return false;
4338         return _ieee80211_is_robust_mgmt_frame((void *)skb->data);
4339 }
4340
4341 /**
4342  * ieee80211_is_public_action - check if frame is a public action frame
4343  * @hdr: the frame
4344  * @len: length of the frame
4345  */
4346 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
4347                                               size_t len)
4348 {
4349         struct ieee80211_mgmt *mgmt = (void *)hdr;
4350
4351         if (len < IEEE80211_MIN_ACTION_SIZE)
4352                 return false;
4353         if (!ieee80211_is_action(hdr->frame_control))
4354                 return false;
4355         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
4356 }
4357
4358 /**
4359  * _ieee80211_is_group_privacy_action - check if frame is a group addressed
4360  * privacy action frame
4361  * @hdr: the frame
4362  */
4363 static inline bool _ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
4364 {
4365         struct ieee80211_mgmt *mgmt = (void *)hdr;
4366
4367         if (!ieee80211_is_action(hdr->frame_control) ||
4368             !is_multicast_ether_addr(hdr->addr1))
4369                 return false;
4370
4371         return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
4372                mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
4373 }
4374
4375 /**
4376  * ieee80211_is_group_privacy_action - check if frame is a group addressed
4377  * privacy action frame
4378  * @skb: the skb containing the frame, length will be checked
4379  */
4380 static inline bool ieee80211_is_group_privacy_action(struct sk_buff *skb)
4381 {
4382         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4383                 return false;
4384         return _ieee80211_is_group_privacy_action((void *)skb->data);
4385 }
4386
4387 /**
4388  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
4389  * @tu: the TUs
4390  */
4391 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
4392 {
4393         return 1024 * tu;
4394 }
4395
4396 /**
4397  * ieee80211_check_tim - check if AID bit is set in TIM
4398  * @tim: the TIM IE
4399  * @tim_len: length of the TIM IE
4400  * @aid: the AID to look for
4401  */
4402 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
4403                                        u8 tim_len, u16 aid)
4404 {
4405         u8 mask;
4406         u8 index, indexn1, indexn2;
4407
4408         if (unlikely(!tim || tim_len < sizeof(*tim)))
4409                 return false;
4410
4411         aid &= 0x3fff;
4412         index = aid / 8;
4413         mask  = 1 << (aid & 7);
4414
4415         indexn1 = tim->bitmap_ctrl & 0xfe;
4416         indexn2 = tim_len + indexn1 - 4;
4417
4418         if (index < indexn1 || index > indexn2)
4419                 return false;
4420
4421         index -= indexn1;
4422
4423         return !!(tim->virtual_map[index] & mask);
4424 }
4425
4426 /**
4427  * ieee80211_get_tdls_action - get tdls packet action (or -1, if not tdls packet)
4428  * @skb: the skb containing the frame, length will not be checked
4429  * @hdr_size: the size of the ieee80211_hdr that starts at skb->data
4430  *
4431  * This function assumes the frame is a data frame, and that the network header
4432  * is in the correct place.
4433  */
4434 static inline int ieee80211_get_tdls_action(struct sk_buff *skb, u32 hdr_size)
4435 {
4436         if (!skb_is_nonlinear(skb) &&
4437             skb->len > (skb_network_offset(skb) + 2)) {
4438                 /* Point to where the indication of TDLS should start */
4439                 const u8 *tdls_data = skb_network_header(skb) - 2;
4440
4441                 if (get_unaligned_be16(tdls_data) == ETH_P_TDLS &&
4442                     tdls_data[2] == WLAN_TDLS_SNAP_RFTYPE &&
4443                     tdls_data[3] == WLAN_CATEGORY_TDLS)
4444                         return tdls_data[4];
4445         }
4446
4447         return -1;
4448 }
4449
4450 /* convert time units */
4451 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
4452 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
4453
4454 /* convert frequencies */
4455 #define MHZ_TO_KHZ(freq) ((freq) * 1000)
4456 #define KHZ_TO_MHZ(freq) ((freq) / 1000)
4457 #define PR_KHZ(f) KHZ_TO_MHZ(f), f % 1000
4458 #define KHZ_F "%d.%03d"
4459
4460 /* convert powers */
4461 #define DBI_TO_MBI(gain) ((gain) * 100)
4462 #define MBI_TO_DBI(gain) ((gain) / 100)
4463 #define DBM_TO_MBM(gain) ((gain) * 100)
4464 #define MBM_TO_DBM(gain) ((gain) / 100)
4465
4466 /**
4467  * ieee80211_action_contains_tpc - checks if the frame contains TPC element
4468  * @skb: the skb containing the frame, length will be checked
4469  *
4470  * This function checks if it's either TPC report action frame or Link
4471  * Measurement report action frame as defined in IEEE Std. 802.11-2012 8.5.2.5
4472  * and 8.5.7.5 accordingly.
4473  */
4474 static inline bool ieee80211_action_contains_tpc(struct sk_buff *skb)
4475 {
4476         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4477
4478         if (!ieee80211_is_action(mgmt->frame_control))
4479                 return false;
4480
4481         if (skb->len < IEEE80211_MIN_ACTION_SIZE +
4482                        sizeof(mgmt->u.action.u.tpc_report))
4483                 return false;
4484
4485         /*
4486          * TPC report - check that:
4487          * category = 0 (Spectrum Management) or 5 (Radio Measurement)
4488          * spectrum management action = 3 (TPC/Link Measurement report)
4489          * TPC report EID = 35
4490          * TPC report element length = 2
4491          *
4492          * The spectrum management's tpc_report struct is used here both for
4493          * parsing tpc_report and radio measurement's link measurement report
4494          * frame, since the relevant part is identical in both frames.
4495          */
4496         if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT &&
4497             mgmt->u.action.category != WLAN_CATEGORY_RADIO_MEASUREMENT)
4498                 return false;
4499
4500         /* both spectrum mgmt and link measurement have same action code */
4501         if (mgmt->u.action.u.tpc_report.action_code !=
4502             WLAN_ACTION_SPCT_TPC_RPRT)
4503                 return false;
4504
4505         if (mgmt->u.action.u.tpc_report.tpc_elem_id != WLAN_EID_TPC_REPORT ||
4506             mgmt->u.action.u.tpc_report.tpc_elem_length !=
4507             sizeof(struct ieee80211_tpc_report_ie))
4508                 return false;
4509
4510         return true;
4511 }
4512
4513 static inline bool ieee80211_is_timing_measurement(struct sk_buff *skb)
4514 {
4515         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4516
4517         if (skb->len < IEEE80211_MIN_ACTION_SIZE)
4518                 return false;
4519
4520         if (!ieee80211_is_action(mgmt->frame_control))
4521                 return false;
4522
4523         if (mgmt->u.action.category == WLAN_CATEGORY_WNM_UNPROTECTED &&
4524             mgmt->u.action.u.wnm_timing_msr.action_code ==
4525                 WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE &&
4526             skb->len >= offsetofend(typeof(*mgmt), u.action.u.wnm_timing_msr))
4527                 return true;
4528
4529         return false;
4530 }
4531
4532 static inline bool ieee80211_is_ftm(struct sk_buff *skb)
4533 {
4534         struct ieee80211_mgmt *mgmt = (void *)skb->data;
4535
4536         if (!ieee80211_is_public_action((void *)mgmt, skb->len))
4537                 return false;
4538
4539         if (mgmt->u.action.u.ftm.action_code ==
4540                 WLAN_PUB_ACTION_FTM_RESPONSE &&
4541             skb->len >= offsetofend(typeof(*mgmt), u.action.u.ftm))
4542                 return true;
4543
4544         return false;
4545 }
4546
4547 struct element {
4548         u8 id;
4549         u8 datalen;
4550         u8 data[];
4551 } __packed;
4552
4553 /* element iteration helpers */
4554 #define for_each_element(_elem, _data, _datalen)                        \
4555         for (_elem = (const struct element *)(_data);                   \
4556              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4557                 (int)sizeof(*_elem) &&                                  \
4558              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4559                 (int)sizeof(*_elem) + _elem->datalen;                   \
4560              _elem = (const struct element *)(_elem->data + _elem->datalen))
4561
4562 #define for_each_element_id(element, _id, data, datalen)                \
4563         for_each_element(element, data, datalen)                        \
4564                 if (element->id == (_id))
4565
4566 #define for_each_element_extid(element, extid, _data, _datalen)         \
4567         for_each_element(element, _data, _datalen)                      \
4568                 if (element->id == WLAN_EID_EXTENSION &&                \
4569                     element->datalen > 0 &&                             \
4570                     element->data[0] == (extid))
4571
4572 #define for_each_subelement(sub, element)                               \
4573         for_each_element(sub, (element)->data, (element)->datalen)
4574
4575 #define for_each_subelement_id(sub, id, element)                        \
4576         for_each_element_id(sub, id, (element)->data, (element)->datalen)
4577
4578 #define for_each_subelement_extid(sub, extid, element)                  \
4579         for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
4580
4581 /**
4582  * for_each_element_completed - determine if element parsing consumed all data
4583  * @element: element pointer after for_each_element() or friends
4584  * @data: same data pointer as passed to for_each_element() or friends
4585  * @datalen: same data length as passed to for_each_element() or friends
4586  *
4587  * This function returns %true if all the data was parsed or considered
4588  * while walking the elements. Only use this if your for_each_element()
4589  * loop cannot be broken out of, otherwise it always returns %false.
4590  *
4591  * If some data was malformed, this returns %false since the last parsed
4592  * element will not fill the whole remaining data.
4593  */
4594 static inline bool for_each_element_completed(const struct element *element,
4595                                               const void *data, size_t datalen)
4596 {
4597         return (const u8 *)element == (const u8 *)data + datalen;
4598 }
4599
4600 /*
4601  * RSNX Capabilities:
4602  * bits 0-3: Field length (n-1)
4603  */
4604 #define WLAN_RSNX_CAPA_PROTECTED_TWT BIT(4)
4605 #define WLAN_RSNX_CAPA_SAE_H2E BIT(5)
4606
4607 /*
4608  * reduced neighbor report, based on Draft P802.11ax_D6.1,
4609  * section 9.4.2.170 and accepted contributions.
4610  */
4611 #define IEEE80211_AP_INFO_TBTT_HDR_TYPE                         0x03
4612 #define IEEE80211_AP_INFO_TBTT_HDR_FILTERED                     0x04
4613 #define IEEE80211_AP_INFO_TBTT_HDR_COLOC                        0x08
4614 #define IEEE80211_AP_INFO_TBTT_HDR_COUNT                        0xF0
4615 #define IEEE80211_TBTT_INFO_TYPE_TBTT                           0
4616 #define IEEE80211_TBTT_INFO_TYPE_MLD                            1
4617
4618 #define IEEE80211_RNR_TBTT_PARAMS_OCT_RECOMMENDED               0x01
4619 #define IEEE80211_RNR_TBTT_PARAMS_SAME_SSID                     0x02
4620 #define IEEE80211_RNR_TBTT_PARAMS_MULTI_BSSID                   0x04
4621 #define IEEE80211_RNR_TBTT_PARAMS_TRANSMITTED_BSSID             0x08
4622 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_ESS                     0x10
4623 #define IEEE80211_RNR_TBTT_PARAMS_PROBE_ACTIVE                  0x20
4624 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_AP                      0x40
4625
4626 #define IEEE80211_RNR_TBTT_PARAMS_PSD_NO_LIMIT                  127
4627 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED                  -128
4628
4629 struct ieee80211_neighbor_ap_info {
4630         u8 tbtt_info_hdr;
4631         u8 tbtt_info_len;
4632         u8 op_class;
4633         u8 channel;
4634 } __packed;
4635
4636 enum ieee80211_range_params_max_total_ltf {
4637         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_4 = 0,
4638         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_8,
4639         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_16,
4640         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_UNSPECIFIED,
4641 };
4642
4643 /*
4644  * reduced neighbor report, based on Draft P802.11be_D3.0,
4645  * section 9.4.2.170.2.
4646  */
4647 struct ieee80211_rnr_mld_params {
4648         u8 mld_id;
4649         __le16 params;
4650 } __packed;
4651
4652 #define IEEE80211_RNR_MLD_PARAMS_LINK_ID                        0x000F
4653 #define IEEE80211_RNR_MLD_PARAMS_BSS_CHANGE_COUNT               0x0FF0
4654 #define IEEE80211_RNR_MLD_PARAMS_UPDATES_INCLUDED               0x1000
4655 #define IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK                  0x2000
4656
4657 /* Format of the TBTT information element if it has 7, 8 or 9 bytes */
4658 struct ieee80211_tbtt_info_7_8_9 {
4659         u8 tbtt_offset;
4660         u8 bssid[ETH_ALEN];
4661
4662         /* The following element is optional, structure may not grow */
4663         u8 bss_params;
4664         s8 psd_20;
4665 } __packed;
4666
4667 /* Format of the TBTT information element if it has >= 11 bytes */
4668 struct ieee80211_tbtt_info_ge_11 {
4669         u8 tbtt_offset;
4670         u8 bssid[ETH_ALEN];
4671         __le32 short_ssid;
4672
4673         /* The following elements are optional, structure may grow */
4674         u8 bss_params;
4675         s8 psd_20;
4676         struct ieee80211_rnr_mld_params mld_params;
4677 } __packed;
4678
4679 /* multi-link device */
4680 #define IEEE80211_MLD_MAX_NUM_LINKS     15
4681
4682 #define IEEE80211_ML_CONTROL_TYPE                       0x0007
4683 #define IEEE80211_ML_CONTROL_TYPE_BASIC                 0
4684 #define IEEE80211_ML_CONTROL_TYPE_PREQ                  1
4685 #define IEEE80211_ML_CONTROL_TYPE_RECONF                2
4686 #define IEEE80211_ML_CONTROL_TYPE_TDLS                  3
4687 #define IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS           4
4688 #define IEEE80211_ML_CONTROL_PRESENCE_MASK              0xfff0
4689
4690 struct ieee80211_multi_link_elem {
4691         __le16 control;
4692         u8 variable[];
4693 } __packed;
4694
4695 #define IEEE80211_MLC_BASIC_PRES_LINK_ID                0x0010
4696 #define IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT       0x0020
4697 #define IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY         0x0040
4698 #define IEEE80211_MLC_BASIC_PRES_EML_CAPA               0x0080
4699 #define IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP            0x0100
4700 #define IEEE80211_MLC_BASIC_PRES_MLD_ID                 0x0200
4701
4702 #define IEEE80211_MED_SYNC_DELAY_DURATION               0x00ff
4703 #define IEEE80211_MED_SYNC_DELAY_SYNC_OFDM_ED_THRESH    0x0f00
4704 #define IEEE80211_MED_SYNC_DELAY_SYNC_MAX_NUM_TXOPS     0xf000
4705
4706 /*
4707  * Described in P802.11be_D3.0
4708  * dot11MSDTimerDuration should default to 5484 (i.e. 171.375)
4709  * dot11MSDOFDMEDthreshold defaults to -72 (i.e. 0)
4710  * dot11MSDTXOPMAX defaults to 1
4711  */
4712 #define IEEE80211_MED_SYNC_DELAY_DEFAULT                0x10ac
4713
4714 #define IEEE80211_EML_CAP_EMLSR_SUPP                    0x0001
4715 #define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY           0x000e
4716 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_0US              0
4717 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US             1
4718 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_64US             2
4719 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_128US            3
4720 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US            4
4721 #define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY        0x0070
4722 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_0US           0
4723 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_16US          1
4724 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_32US          2
4725 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US          3
4726 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_128US         4
4727 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US         5
4728 #define IEEE80211_EML_CAP_EMLMR_SUPPORT                 0x0080
4729 #define IEEE80211_EML_CAP_EMLMR_DELAY                   0x0700
4730 #define  IEEE80211_EML_CAP_EMLMR_DELAY_0US                      0
4731 #define  IEEE80211_EML_CAP_EMLMR_DELAY_32US                     1
4732 #define  IEEE80211_EML_CAP_EMLMR_DELAY_64US                     2
4733 #define  IEEE80211_EML_CAP_EMLMR_DELAY_128US                    3
4734 #define  IEEE80211_EML_CAP_EMLMR_DELAY_256US                    4
4735 #define IEEE80211_EML_CAP_TRANSITION_TIMEOUT            0x7800
4736 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_0                 0
4737 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128US             1
4738 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_256US             2
4739 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_512US             3
4740 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_1TU               4
4741 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_2TU               5
4742 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_4TU               6
4743 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_8TU               7
4744 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_16TU              8
4745 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_32TU              9
4746 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_64TU              10
4747 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU             11
4748
4749 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS            0x000f
4750 #define IEEE80211_MLD_CAP_OP_SRS_SUPPORT                0x0010
4751 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP   0x0060
4752 #define IEEE80211_MLD_CAP_OP_FREQ_SEP_TYPE_IND          0x0f80
4753 #define IEEE80211_MLD_CAP_OP_AAR_SUPPORT                0x1000
4754
4755 struct ieee80211_mle_basic_common_info {
4756         u8 len;
4757         u8 mld_mac_addr[ETH_ALEN];
4758         u8 variable[];
4759 } __packed;
4760
4761 #define IEEE80211_MLC_PREQ_PRES_MLD_ID                  0x0010
4762
4763 struct ieee80211_mle_preq_common_info {
4764         u8 len;
4765         u8 variable[];
4766 } __packed;
4767
4768 #define IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR          0x0010
4769
4770 /* no fixed fields in RECONF */
4771
4772 struct ieee80211_mle_tdls_common_info {
4773         u8 len;
4774         u8 ap_mld_mac_addr[ETH_ALEN];
4775 } __packed;
4776
4777 #define IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR  0x0010
4778
4779 /* no fixed fields in PRIO_ACCESS */
4780
4781 /**
4782  * ieee80211_mle_common_size - check multi-link element common size
4783  * @data: multi-link element, must already be checked for size using
4784  *      ieee80211_mle_size_ok()
4785  */
4786 static inline u8 ieee80211_mle_common_size(const u8 *data)
4787 {
4788         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4789         u16 control = le16_to_cpu(mle->control);
4790         u8 common = 0;
4791
4792         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
4793         case IEEE80211_ML_CONTROL_TYPE_BASIC:
4794         case IEEE80211_ML_CONTROL_TYPE_PREQ:
4795         case IEEE80211_ML_CONTROL_TYPE_TDLS:
4796         case IEEE80211_ML_CONTROL_TYPE_RECONF:
4797                 /*
4798                  * The length is the first octet pointed by mle->variable so no
4799                  * need to add anything
4800                  */
4801                 break;
4802         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
4803                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
4804                         common += ETH_ALEN;
4805                 return common;
4806         default:
4807                 WARN_ON(1);
4808                 return 0;
4809         }
4810
4811         return sizeof(*mle) + common + mle->variable[0];
4812 }
4813
4814 /**
4815  * ieee80211_mle_get_bss_param_ch_cnt - returns the BSS parameter change count
4816  * @mle: the basic multi link element
4817  *
4818  * The element is assumed to be of the correct type (BASIC) and big enough,
4819  * this must be checked using ieee80211_mle_type_ok().
4820  *
4821  * If the BSS parameter change count value can't be found (the presence bit
4822  * for it is clear), 0 will be returned.
4823  */
4824 static inline u8
4825 ieee80211_mle_get_bss_param_ch_cnt(const struct ieee80211_multi_link_elem *mle)
4826 {
4827         u16 control = le16_to_cpu(mle->control);
4828         const u8 *common = mle->variable;
4829
4830         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4831         common += sizeof(struct ieee80211_mle_basic_common_info);
4832
4833         if (!(control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT))
4834                 return 0;
4835
4836         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4837                 common += 1;
4838
4839         return *common;
4840 }
4841
4842 /**
4843  * ieee80211_mle_get_eml_med_sync_delay - returns the medium sync delay
4844  * @data: pointer to the multi link EHT IE
4845  *
4846  * The element is assumed to be of the correct type (BASIC) and big enough,
4847  * this must be checked using ieee80211_mle_type_ok().
4848  *
4849  * If the medium synchronization is not present, then the default value is
4850  * returned.
4851  */
4852 static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
4853 {
4854         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4855         u16 control = le16_to_cpu(mle->control);
4856         const u8 *common = mle->variable;
4857
4858         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4859         common += sizeof(struct ieee80211_mle_basic_common_info);
4860
4861         if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
4862                 return IEEE80211_MED_SYNC_DELAY_DEFAULT;
4863
4864         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4865                 common += 1;
4866         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4867                 common += 1;
4868
4869         return get_unaligned_le16(common);
4870 }
4871
4872 /**
4873  * ieee80211_mle_get_eml_cap - returns the EML capability
4874  * @data: pointer to the multi link EHT IE
4875  *
4876  * The element is assumed to be of the correct type (BASIC) and big enough,
4877  * this must be checked using ieee80211_mle_type_ok().
4878  *
4879  * If the EML capability is not present, 0 will be returned.
4880  */
4881 static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
4882 {
4883         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4884         u16 control = le16_to_cpu(mle->control);
4885         const u8 *common = mle->variable;
4886
4887         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4888         common += sizeof(struct ieee80211_mle_basic_common_info);
4889
4890         if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
4891                 return 0;
4892
4893         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4894                 common += 1;
4895         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4896                 common += 1;
4897         if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
4898                 common += 2;
4899
4900         return get_unaligned_le16(common);
4901 }
4902
4903 /**
4904  * ieee80211_mle_size_ok - validate multi-link element size
4905  * @data: pointer to the element data
4906  * @len: length of the containing element
4907  */
4908 static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
4909 {
4910         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4911         u8 fixed = sizeof(*mle);
4912         u8 common = 0;
4913         bool check_common_len = false;
4914         u16 control;
4915
4916         if (len < fixed)
4917                 return false;
4918
4919         control = le16_to_cpu(mle->control);
4920
4921         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
4922         case IEEE80211_ML_CONTROL_TYPE_BASIC:
4923                 common += sizeof(struct ieee80211_mle_basic_common_info);
4924                 check_common_len = true;
4925                 if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4926                         common += 1;
4927                 if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4928                         common += 1;
4929                 if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
4930                         common += 2;
4931                 if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
4932                         common += 2;
4933                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
4934                         common += 2;
4935                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
4936                         common += 1;
4937                 break;
4938         case IEEE80211_ML_CONTROL_TYPE_PREQ:
4939                 common += sizeof(struct ieee80211_mle_preq_common_info);
4940                 if (control & IEEE80211_MLC_PREQ_PRES_MLD_ID)
4941                         common += 1;
4942                 check_common_len = true;
4943                 break;
4944         case IEEE80211_ML_CONTROL_TYPE_RECONF:
4945                 if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
4946                         common += ETH_ALEN;
4947                 break;
4948         case IEEE80211_ML_CONTROL_TYPE_TDLS:
4949                 common += sizeof(struct ieee80211_mle_tdls_common_info);
4950                 check_common_len = true;
4951                 break;
4952         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
4953                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
4954                         common += ETH_ALEN;
4955                 break;
4956         default:
4957                 /* we don't know this type */
4958                 return true;
4959         }
4960
4961         if (len < fixed + common)
4962                 return false;
4963
4964         if (!check_common_len)
4965                 return true;
4966
4967         /* if present, common length is the first octet there */
4968         return mle->variable[0] >= common;
4969 }
4970
4971 /**
4972  * ieee80211_mle_type_ok - validate multi-link element type and size
4973  * @data: pointer to the element data
4974  * @type: expected type of the element
4975  * @len: length of the containing element
4976  */
4977 static inline bool ieee80211_mle_type_ok(const u8 *data, u8 type, size_t len)
4978 {
4979         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4980         u16 control;
4981
4982         if (!ieee80211_mle_size_ok(data, len))
4983                 return false;
4984
4985         control = le16_to_cpu(mle->control);
4986
4987         if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) == type)
4988                 return true;
4989
4990         return false;
4991 }
4992
4993 enum ieee80211_mle_subelems {
4994         IEEE80211_MLE_SUBELEM_PER_STA_PROFILE           = 0,
4995         IEEE80211_MLE_SUBELEM_FRAGMENT                  = 254,
4996 };
4997
4998 #define IEEE80211_MLE_STA_CONTROL_LINK_ID                       0x000f
4999 #define IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE              0x0010
5000 #define IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT          0x0020
5001 #define IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT            0x0040
5002 #define IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT              0x0080
5003 #define IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT             0x0100
5004 #define IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT        0x0200
5005 #define IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE              0x0400
5006 #define IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT  0x0800
5007
5008 struct ieee80211_mle_per_sta_profile {
5009         __le16 control;
5010         u8 sta_info_len;
5011         u8 variable[];
5012 } __packed;
5013
5014 /**
5015  * ieee80211_mle_basic_sta_prof_size_ok - validate basic multi-link element sta
5016  *      profile size
5017  * @data: pointer to the sub element data
5018  * @len: length of the containing sub element
5019  */
5020 static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
5021                                                         size_t len)
5022 {
5023         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
5024         u16 control;
5025         u8 fixed = sizeof(*prof);
5026         u8 info_len = 1;
5027
5028         if (len < fixed)
5029                 return false;
5030
5031         control = le16_to_cpu(prof->control);
5032
5033         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
5034                 info_len += 6;
5035         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
5036                 info_len += 2;
5037         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
5038                 info_len += 8;
5039         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
5040                 info_len += 2;
5041         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
5042             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
5043                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
5044                         info_len += 2;
5045                 else
5046                         info_len += 1;
5047         }
5048         if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
5049                 info_len += 1;
5050
5051         return prof->sta_info_len >= info_len &&
5052                fixed + prof->sta_info_len <= len;
5053 }
5054
5055 /**
5056  * ieee80211_mle_basic_sta_prof_bss_param_ch_cnt - get per-STA profile BSS
5057  *      parameter change count
5058  * @prof: the per-STA profile, having been checked with
5059  *      ieee80211_mle_basic_sta_prof_size_ok() for the correct length
5060  *
5061  * Return: The BSS parameter change count value if present, 0 otherwise.
5062  */
5063 static inline u8
5064 ieee80211_mle_basic_sta_prof_bss_param_ch_cnt(const struct ieee80211_mle_per_sta_profile *prof)
5065 {
5066         u16 control = le16_to_cpu(prof->control);
5067         const u8 *pos = prof->variable;
5068
5069         if (!(control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT))
5070                 return 0;
5071
5072         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
5073                 pos += 6;
5074         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
5075                 pos += 2;
5076         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
5077                 pos += 8;
5078         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
5079                 pos += 2;
5080         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
5081             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
5082                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
5083                         pos += 2;
5084                 else
5085                         pos += 1;
5086         }
5087
5088         return *pos;
5089 }
5090
5091 #define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID                        0x000f
5092 #define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE               0x0010
5093 #define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT           0x0020
5094 #define IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT           0x0040
5095 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_UPDATE_TYPE          0x0780
5096 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT       0x0800
5097
5098 /**
5099  * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
5100  *      element sta profile size.
5101  * @data: pointer to the sub element data
5102  * @len: length of the containing sub element
5103  */
5104 static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
5105                                                          size_t len)
5106 {
5107         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
5108         u16 control;
5109         u8 fixed = sizeof(*prof);
5110         u8 info_len = 1;
5111
5112         if (len < fixed)
5113                 return false;
5114
5115         control = le16_to_cpu(prof->control);
5116
5117         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
5118                 info_len += ETH_ALEN;
5119         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT)
5120                 info_len += 2;
5121         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT)
5122                 info_len += 2;
5123
5124         return prof->sta_info_len >= info_len &&
5125                fixed + prof->sta_info_len - 1 <= len;
5126 }
5127
5128 #define for_each_mle_subelement(_elem, _data, _len)                     \
5129         if (ieee80211_mle_size_ok(_data, _len))                         \
5130                 for_each_element(_elem,                                 \
5131                                  _data + ieee80211_mle_common_size(_data),\
5132                                  _len - ieee80211_mle_common_size(_data))
5133
5134 #endif /* LINUX_IEEE80211_H */