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 /*
  19  * DS bit usage
  20  *
  21  * TA = transmitter address
  22  * RA = receiver address
  23  * DA = destination address
  24  * SA = source address
  25  *
  26  * ToDS    FromDS  A1(RA)  A2(TA)  A3      A4      Use
  27  * -----------------------------------------------------------------
  28  *  0       0       DA      SA      BSSID   -       IBSS/DLS
  29  *  0       1       DA      BSSID   SA      -       AP -> STA
  30  *  1       0       BSSID   SA      DA      -       AP <- STA
  31  *  1       1       RA      TA      DA      SA      unspecified (WDS)
  32  */
  33
  34 #define FCS_LEN 4
  35
  36 #define IEEE80211_FCTL_VERS             0x0003
  37 #define IEEE80211_FCTL_FTYPE            0x000c
  38 #define IEEE80211_FCTL_STYPE            0x00f0
  39 #define IEEE80211_FCTL_TODS             0x0100
  40 #define IEEE80211_FCTL_FROMDS           0x0200
  41 #define IEEE80211_FCTL_MOREFRAGS        0x0400
  42 #define IEEE80211_FCTL_RETRY            0x0800
  43 #define IEEE80211_FCTL_PM               0x1000
  44 #define IEEE80211_FCTL_MOREDATA         0x2000
  45 #define IEEE80211_FCTL_PROTECTED        0x4000
  46 #define IEEE80211_FCTL_ORDER            0x8000
  47 #define IEEE80211_FCTL_CTL_EXT          0x0f00
  48
  49 #define IEEE80211_SCTL_FRAG             0x000F
  50 #define IEEE80211_SCTL_SEQ              0xFFF0
  51
  52 #define IEEE80211_FTYPE_MGMT            0x0000
  53 #define IEEE80211_FTYPE_CTL             0x0004
  54 #define IEEE80211_FTYPE_DATA            0x0008
  55 #define IEEE80211_FTYPE_EXT             0x000c
  56
  57 /* management */
  58 #define IEEE80211_STYPE_ASSOC_REQ       0x0000
  59 #define IEEE80211_STYPE_ASSOC_RESP      0x0010
  60 #define IEEE80211_STYPE_REASSOC_REQ     0x0020
  61 #define IEEE80211_STYPE_REASSOC_RESP    0x0030
  62 #define IEEE80211_STYPE_PROBE_REQ       0x0040
  63 #define IEEE80211_STYPE_PROBE_RESP      0x0050
  64 #define IEEE80211_STYPE_BEACON          0x0080
  65 #define IEEE80211_STYPE_ATIM            0x0090
  66 #define IEEE80211_STYPE_DISASSOC        0x00A0
  67 #define IEEE80211_STYPE_AUTH            0x00B0
  68 #define IEEE80211_STYPE_DEAUTH          0x00C0
  69 #define IEEE80211_STYPE_ACTION          0x00D0
  70
  71 /* control */
  72 #define IEEE80211_STYPE_TRIGGER         0x0020
  73 #define IEEE80211_STYPE_CTL_EXT         0x0060
  74 #define IEEE80211_STYPE_BACK_REQ        0x0080
  75 #define IEEE80211_STYPE_BACK            0x0090
  76 #define IEEE80211_STYPE_PSPOLL          0x00A0
  77 #define IEEE80211_STYPE_RTS             0x00B0
  78 #define IEEE80211_STYPE_CTS             0x00C0
  79 #define IEEE80211_STYPE_ACK             0x00D0
  80 #define IEEE80211_STYPE_CFEND           0x00E0
  81 #define IEEE80211_STYPE_CFENDACK        0x00F0
  82
  83 /* data */
  84 #define IEEE80211_STYPE_DATA                    0x0000
  85 #define IEEE80211_STYPE_DATA_CFACK              0x0010
  86 #define IEEE80211_STYPE_DATA_CFPOLL             0x0020
  87 #define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030
  88 #define IEEE80211_STYPE_NULLFUNC                0x0040
  89 #define IEEE80211_STYPE_CFACK                   0x0050
  90 #define IEEE80211_STYPE_CFPOLL                  0x0060
  91 #define IEEE80211_STYPE_CFACKPOLL               0x0070
  92 #define IEEE80211_STYPE_QOS_DATA                0x0080
  93 #define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090
  94 #define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0
  95 #define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0
  96 #define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0
  97 #define IEEE80211_STYPE_QOS_CFACK               0x00D0
  98 #define IEEE80211_STYPE_QOS_CFPOLL              0x00E0
  99 #define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0
 100
 101 /* extension, added by 802.11ad */
 102 #define IEEE80211_STYPE_DMG_BEACON              0x0000
 103 #define IEEE80211_STYPE_S1G_BEACON              0x0010
 104
 105 /* bits unique to S1G beacon */
 106 #define IEEE80211_S1G_BCN_NEXT_TBTT     0x100
 107
 108 /* see 802.11ah-2016 9.9 NDP CMAC frames */
 109 #define IEEE80211_S1G_1MHZ_NDP_BITS     25
 110 #define IEEE80211_S1G_1MHZ_NDP_BYTES    4
 111 #define IEEE80211_S1G_2MHZ_NDP_BITS     37
 112 #define IEEE80211_S1G_2MHZ_NDP_BYTES    5
 113
 114 #define IEEE80211_NDP_FTYPE_CTS                 0
 115 #define IEEE80211_NDP_FTYPE_CF_END              0
 116 #define IEEE80211_NDP_FTYPE_PS_POLL             1
 117 #define IEEE80211_NDP_FTYPE_ACK                 2
 118 #define IEEE80211_NDP_FTYPE_PS_POLL_ACK         3
 119 #define IEEE80211_NDP_FTYPE_BA                  4
 120 #define IEEE80211_NDP_FTYPE_BF_REPORT_POLL      5
 121 #define IEEE80211_NDP_FTYPE_PAGING              6
 122 #define IEEE80211_NDP_FTYPE_PREQ                7
 123
 124 #define SM64(f, v)      ((((u64)v) << f##_S) & f)
 125
 126 /* NDP CMAC frame fields */
 127 #define IEEE80211_NDP_FTYPE                    0x0000000000000007
 128 #define IEEE80211_NDP_FTYPE_S                  0x0000000000000000
 129
 130 /* 1M Probe Request 11ah 9.9.3.1.1 */
 131 #define IEEE80211_NDP_1M_PREQ_ANO      0x0000000000000008
 132 #define IEEE80211_NDP_1M_PREQ_ANO_S                     3
 133 #define IEEE80211_NDP_1M_PREQ_CSSID    0x00000000000FFFF0
 134 #define IEEE80211_NDP_1M_PREQ_CSSID_S                   4
 135 #define IEEE80211_NDP_1M_PREQ_RTYPE    0x0000000000100000
 136 #define IEEE80211_NDP_1M_PREQ_RTYPE_S                  20
 137 #define IEEE80211_NDP_1M_PREQ_RSV      0x0000000001E00000
 138 #define IEEE80211_NDP_1M_PREQ_RSV      0x0000000001E00000
 139 /* 2M Probe Request 11ah 9.9.3.1.2 */
 140 #define IEEE80211_NDP_2M_PREQ_ANO      0x0000000000000008
 141 #define IEEE80211_NDP_2M_PREQ_ANO_S                     3
 142 #define IEEE80211_NDP_2M_PREQ_CSSID    0x0000000FFFFFFFF0
 143 #define IEEE80211_NDP_2M_PREQ_CSSID_S                   4
 144 #define IEEE80211_NDP_2M_PREQ_RTYPE    0x0000001000000000
 145 #define IEEE80211_NDP_2M_PREQ_RTYPE_S                  36
 146
 147 #define IEEE80211_ANO_NETTYPE_WILD              15
 148
 149 /* bits unique to S1G beacon */
 150 #define IEEE80211_S1G_BCN_NEXT_TBTT    0x100
 151
 152 /* control extension - for IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTL_EXT */
 153 #define IEEE80211_CTL_EXT_POLL          0x2000
 154 #define IEEE80211_CTL_EXT_SPR           0x3000
 155 #define IEEE80211_CTL_EXT_GRANT 0x4000
 156 #define IEEE80211_CTL_EXT_DMG_CTS       0x5000
 157 #define IEEE80211_CTL_EXT_DMG_DTS       0x6000
 158 #define IEEE80211_CTL_EXT_SSW           0x8000
 159 #define IEEE80211_CTL_EXT_SSW_FBACK     0x9000
 160 #define IEEE80211_CTL_EXT_SSW_ACK       0xa000
 161
 162
 163 #define IEEE80211_SN_MASK               ((IEEE80211_SCTL_SEQ) >> 4)
 164 #define IEEE80211_MAX_SN                IEEE80211_SN_MASK
 165 #define IEEE80211_SN_MODULO             (IEEE80211_MAX_SN + 1)
 166
 167
 168 /* PV1 Layout 11ah 9.8.3.1 */
 169 #define IEEE80211_PV1_FCTL_VERS         0x0003
 170 #define IEEE80211_PV1_FCTL_FTYPE        0x001c
 171 #define IEEE80211_PV1_FCTL_STYPE        0x00e0
 172 #define IEEE80211_PV1_FCTL_TODS         0x0100
 173 #define IEEE80211_PV1_FCTL_MOREFRAGS    0x0200
 174 #define IEEE80211_PV1_FCTL_PM           0x0400
 175 #define IEEE80211_PV1_FCTL_MOREDATA     0x0800
 176 #define IEEE80211_PV1_FCTL_PROTECTED    0x1000
 177 #define IEEE80211_PV1_FCTL_END_SP       0x2000
 178 #define IEEE80211_PV1_FCTL_RELAYED      0x4000
 179 #define IEEE80211_PV1_FCTL_ACK_POLICY   0x8000
 180 #define IEEE80211_PV1_FCTL_CTL_EXT      0x0f00
 181
 182 static inline bool ieee80211_sn_less(u16 sn1, u16 sn2)
 183 {
 184         return ((sn1 - sn2) & IEEE80211_SN_MASK) > (IEEE80211_SN_MODULO >> 1);
 185 }
 186
 187 static inline u16 ieee80211_sn_add(u16 sn1, u16 sn2)
 188 {
 189         return (sn1 + sn2) & IEEE80211_SN_MASK;
 190 }
 191
 192 static inline u16 ieee80211_sn_inc(u16 sn)
 193 {
 194         return ieee80211_sn_add(sn, 1);
 195 }
 196
 197 static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
 198 {
 199         return (sn1 - sn2) & IEEE80211_SN_MASK;
 200 }
 201
 202 #define IEEE80211_SEQ_TO_SN(seq)        (((seq) & IEEE80211_SCTL_SEQ) >> 4)
 203 #define IEEE80211_SN_TO_SEQ(ssn)        (((ssn) << 4) & IEEE80211_SCTL_SEQ)
 204
 205 /* miscellaneous IEEE 802.11 constants */
 206 #define IEEE80211_MAX_FRAG_THRESHOLD    2352
 207 #define IEEE80211_MAX_RTS_THRESHOLD     2353
 208 #define IEEE80211_MAX_AID               2007
 209 #define IEEE80211_MAX_AID_S1G           8191
 210 #define IEEE80211_MAX_TIM_LEN           251
 211 #define IEEE80211_MAX_MESH_PEERINGS     63
 212 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
 213    6.2.1.1.2.
 214
 215    802.11e clarifies the figure in section 7.1.2. The frame body is
 216    up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
 217 #define IEEE80211_MAX_DATA_LEN          2304
 218 /* 802.11ad extends maximum MSDU size for DMG (freq > 40Ghz) networks
 219  * to 7920 bytes, see 8.2.3 General frame format
 220  */
 221 #define IEEE80211_MAX_DATA_LEN_DMG      7920
 222 /* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
 223 #define IEEE80211_MAX_FRAME_LEN         2352
 224
 225 /* Maximal size of an A-MSDU that can be transported in a HT BA session */
 226 #define IEEE80211_MAX_MPDU_LEN_HT_BA            4095
 227
 228 /* Maximal size of an A-MSDU */
 229 #define IEEE80211_MAX_MPDU_LEN_HT_3839          3839
 230 #define IEEE80211_MAX_MPDU_LEN_HT_7935          7935
 231
 232 #define IEEE80211_MAX_MPDU_LEN_VHT_3895         3895
 233 #define IEEE80211_MAX_MPDU_LEN_VHT_7991         7991
 234 #define IEEE80211_MAX_MPDU_LEN_VHT_11454        11454
 235
 236 #define IEEE80211_MAX_SSID_LEN          32
 237
 238 #define IEEE80211_MAX_MESH_ID_LEN       32
 239
 240 #define IEEE80211_FIRST_TSPEC_TSID      8
 241 #define IEEE80211_NUM_TIDS              16
 242
 243 /* number of user priorities 802.11 uses */
 244 #define IEEE80211_NUM_UPS               8
 245 /* number of ACs */
 246 #define IEEE80211_NUM_ACS               4
 247
 248 #define IEEE80211_QOS_CTL_LEN           2
 249 /* 1d tag mask */
 250 #define IEEE80211_QOS_CTL_TAG1D_MASK            0x0007
 251 /* TID mask */
 252 #define IEEE80211_QOS_CTL_TID_MASK              0x000f
 253 /* EOSP */
 254 #define IEEE80211_QOS_CTL_EOSP                  0x0010
 255 /* ACK policy */
 256 #define IEEE80211_QOS_CTL_ACK_POLICY_NORMAL     0x0000
 257 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK      0x0020
 258 #define IEEE80211_QOS_CTL_ACK_POLICY_NO_EXPL    0x0040
 259 #define IEEE80211_QOS_CTL_ACK_POLICY_BLOCKACK   0x0060
 260 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK       0x0060
 261 /* A-MSDU 802.11n */
 262 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT        0x0080
 263 /* Mesh Control 802.11s */
 264 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT  0x0100
 265
 266 /* Mesh Power Save Level */
 267 #define IEEE80211_QOS_CTL_MESH_PS_LEVEL         0x0200
 268 /* Mesh Receiver Service Period Initiated */
 269 #define IEEE80211_QOS_CTL_RSPI                  0x0400
 270
 271 /* U-APSD queue for WMM IEs sent by AP */
 272 #define IEEE80211_WMM_IE_AP_QOSINFO_UAPSD       (1<<7)
 273 #define IEEE80211_WMM_IE_AP_QOSINFO_PARAM_SET_CNT_MASK  0x0f
 274
 275 /* U-APSD queues for WMM IEs sent by STA */
 276 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO      (1<<0)
 277 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI      (1<<1)
 278 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK      (1<<2)
 279 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE      (1<<3)
 280 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK    0x0f
 281
 282 /* U-APSD max SP length for WMM IEs sent by STA */
 283 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL     0x00
 284 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_2       0x01
 285 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_4       0x02
 286 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_6       0x03
 287 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK    0x03
 288 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT   5
 289
 290 #define IEEE80211_HT_CTL_LEN            4
 291
 292 /* trigger type within common_info of trigger frame */
 293 #define IEEE80211_TRIGGER_TYPE_MASK             0xf
 294 #define IEEE80211_TRIGGER_TYPE_BASIC            0x0
 295 #define IEEE80211_TRIGGER_TYPE_BFRP             0x1
 296 #define IEEE80211_TRIGGER_TYPE_MU_BAR           0x2
 297 #define IEEE80211_TRIGGER_TYPE_MU_RTS           0x3
 298 #define IEEE80211_TRIGGER_TYPE_BSRP             0x4
 299 #define IEEE80211_TRIGGER_TYPE_GCR_MU_BAR       0x5
 300 #define IEEE80211_TRIGGER_TYPE_BQRP             0x6
 301 #define IEEE80211_TRIGGER_TYPE_NFRP             0x7
 302
 303 struct ieee80211_hdr {
 304         __le16 frame_control;
 305         __le16 duration_id;
 306         u8 addr1[6];
 307         u8 addr2[6];
 308         u8 addr3[6];
 309         __le16 seq_ctrl;
 310         u8 addr4[6];
 311 } __packed __aligned(2);
 312
 313 struct ieee80211_hdr_3addr {
 314         __le16 frame_control;
 315         __le16 duration_id;
 316         struct_group(addrs,
 317                 u8 addr1[6];
 318                 u8 addr2[6];
 319                 u8 addr3[6];
 320         );
 321         __le16 seq_ctrl;
 322 } __packed __aligned(2);
 323
 324 struct ieee80211_qos_hdr {
 325         __le16 frame_control;
 326         __le16 duration_id;
 327         u8 addr1[6];
 328         u8 addr2[6];
 329         u8 addr3[6];
 330         __le16 seq_ctrl;
 331         __le16 qos_ctrl;
 332 } __packed __aligned(2);
 333
 334 struct ieee80211_qos_hdr_4addr {
 335         __le16 frame_control;
 336         __le16 duration_id;
 337         u8 addr1[6];
 338         u8 addr2[6];
 339         u8 addr3[6];
 340         __le16 seq_ctrl;
 341         u8 addr4[6];
 342         __le16 qos_ctrl;
 343 } __packed __aligned(2);
 344
 345 struct ieee80211_trigger {
 346         __le16 frame_control;
 347         __le16 duration;
 348         u8 ra[6];
 349         u8 ta[6];
 350         __le64 common_info;
 351         u8 variable[];
 352 } __packed __aligned(2);
 353
 354 /**
 355  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
 356  * @fc: frame control bytes in little-endian byteorder
 357  */
 358 static inline bool ieee80211_has_tods(__le16 fc)
 359 {
 360         return (fc & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0;
 361 }
 362
 363 /**
 364  * ieee80211_has_fromds - check if IEEE80211_FCTL_FROMDS is set
 365  * @fc: frame control bytes in little-endian byteorder
 366  */
 367 static inline bool ieee80211_has_fromds(__le16 fc)
 368 {
 369         return (fc & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0;
 370 }
 371
 372 /**
 373  * ieee80211_has_a4 - check if IEEE80211_FCTL_TODS and IEEE80211_FCTL_FROMDS are set
 374  * @fc: frame control bytes in little-endian byteorder
 375  */
 376 static inline bool ieee80211_has_a4(__le16 fc)
 377 {
 378         __le16 tmp = cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
 379         return (fc & tmp) == tmp;
 380 }
 381
 382 /**
 383  * ieee80211_has_morefrags - check if IEEE80211_FCTL_MOREFRAGS is set
 384  * @fc: frame control bytes in little-endian byteorder
 385  */
 386 static inline bool ieee80211_has_morefrags(__le16 fc)
 387 {
 388         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0;
 389 }
 390
 391 /**
 392  * ieee80211_has_retry - check if IEEE80211_FCTL_RETRY is set
 393  * @fc: frame control bytes in little-endian byteorder
 394  */
 395 static inline bool ieee80211_has_retry(__le16 fc)
 396 {
 397         return (fc & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0;
 398 }
 399
 400 /**
 401  * ieee80211_has_pm - check if IEEE80211_FCTL_PM is set
 402  * @fc: frame control bytes in little-endian byteorder
 403  */
 404 static inline bool ieee80211_has_pm(__le16 fc)
 405 {
 406         return (fc & cpu_to_le16(IEEE80211_FCTL_PM)) != 0;
 407 }
 408
 409 /**
 410  * ieee80211_has_moredata - check if IEEE80211_FCTL_MOREDATA is set
 411  * @fc: frame control bytes in little-endian byteorder
 412  */
 413 static inline bool ieee80211_has_moredata(__le16 fc)
 414 {
 415         return (fc & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0;
 416 }
 417
 418 /**
 419  * ieee80211_has_protected - check if IEEE80211_FCTL_PROTECTED is set
 420  * @fc: frame control bytes in little-endian byteorder
 421  */
 422 static inline bool ieee80211_has_protected(__le16 fc)
 423 {
 424         return (fc & cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0;
 425 }
 426
 427 /**
 428  * ieee80211_has_order - check if IEEE80211_FCTL_ORDER is set
 429  * @fc: frame control bytes in little-endian byteorder
 430  */
 431 static inline bool ieee80211_has_order(__le16 fc)
 432 {
 433         return (fc & cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0;
 434 }
 435
 436 /**
 437  * ieee80211_is_mgmt - check if type is IEEE80211_FTYPE_MGMT
 438  * @fc: frame control bytes in little-endian byteorder
 439  */
 440 static inline bool ieee80211_is_mgmt(__le16 fc)
 441 {
 442         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 443                cpu_to_le16(IEEE80211_FTYPE_MGMT);
 444 }
 445
 446 /**
 447  * ieee80211_is_ctl - check if type is IEEE80211_FTYPE_CTL
 448  * @fc: frame control bytes in little-endian byteorder
 449  */
 450 static inline bool ieee80211_is_ctl(__le16 fc)
 451 {
 452         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 453                cpu_to_le16(IEEE80211_FTYPE_CTL);
 454 }
 455
 456 /**
 457  * ieee80211_is_data - check if type is IEEE80211_FTYPE_DATA
 458  * @fc: frame control bytes in little-endian byteorder
 459  */
 460 static inline bool ieee80211_is_data(__le16 fc)
 461 {
 462         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 463                cpu_to_le16(IEEE80211_FTYPE_DATA);
 464 }
 465
 466 /**
 467  * ieee80211_is_ext - check if type is IEEE80211_FTYPE_EXT
 468  * @fc: frame control bytes in little-endian byteorder
 469  */
 470 static inline bool ieee80211_is_ext(__le16 fc)
 471 {
 472         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
 473                cpu_to_le16(IEEE80211_FTYPE_EXT);
 474 }
 475
 476
 477 /**
 478  * ieee80211_is_data_qos - check if type is IEEE80211_FTYPE_DATA and IEEE80211_STYPE_QOS_DATA is set
 479  * @fc: frame control bytes in little-endian byteorder
 480  */
 481 static inline bool ieee80211_is_data_qos(__le16 fc)
 482 {
 483         /*
 484          * mask with QOS_DATA rather than IEEE80211_FCTL_STYPE as we just need
 485          * to check the one bit
 486          */
 487         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_STYPE_QOS_DATA)) ==
 488                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA);
 489 }
 490
 491 /**
 492  * ieee80211_is_data_present - check if type is IEEE80211_FTYPE_DATA and has data
 493  * @fc: frame control bytes in little-endian byteorder
 494  */
 495 static inline bool ieee80211_is_data_present(__le16 fc)
 496 {
 497         /*
 498          * mask with 0x40 and test that that bit is clear to only return true
 499          * for the data-containing substypes.
 500          */
 501         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | 0x40)) ==
 502                cpu_to_le16(IEEE80211_FTYPE_DATA);
 503 }
 504
 505 /**
 506  * ieee80211_is_assoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_REQ
 507  * @fc: frame control bytes in little-endian byteorder
 508  */
 509 static inline bool ieee80211_is_assoc_req(__le16 fc)
 510 {
 511         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 512                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_REQ);
 513 }
 514
 515 /**
 516  * ieee80211_is_assoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ASSOC_RESP
 517  * @fc: frame control bytes in little-endian byteorder
 518  */
 519 static inline bool ieee80211_is_assoc_resp(__le16 fc)
 520 {
 521         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 522                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ASSOC_RESP);
 523 }
 524
 525 /**
 526  * ieee80211_is_reassoc_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_REQ
 527  * @fc: frame control bytes in little-endian byteorder
 528  */
 529 static inline bool ieee80211_is_reassoc_req(__le16 fc)
 530 {
 531         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 532                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_REQ);
 533 }
 534
 535 /**
 536  * ieee80211_is_reassoc_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_REASSOC_RESP
 537  * @fc: frame control bytes in little-endian byteorder
 538  */
 539 static inline bool ieee80211_is_reassoc_resp(__le16 fc)
 540 {
 541         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 542                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_REASSOC_RESP);
 543 }
 544
 545 /**
 546  * ieee80211_is_probe_req - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_REQ
 547  * @fc: frame control bytes in little-endian byteorder
 548  */
 549 static inline bool ieee80211_is_probe_req(__le16 fc)
 550 {
 551         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 552                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ);
 553 }
 554
 555 /**
 556  * ieee80211_is_probe_resp - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_PROBE_RESP
 557  * @fc: frame control bytes in little-endian byteorder
 558  */
 559 static inline bool ieee80211_is_probe_resp(__le16 fc)
 560 {
 561         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 562                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
 563 }
 564
 565 /**
 566  * ieee80211_is_beacon - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_BEACON
 567  * @fc: frame control bytes in little-endian byteorder
 568  */
 569 static inline bool ieee80211_is_beacon(__le16 fc)
 570 {
 571         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 572                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 573 }
 574
 575 /**
 576  * ieee80211_is_s1g_beacon - check if IEEE80211_FTYPE_EXT &&
 577  * IEEE80211_STYPE_S1G_BEACON
 578  * @fc: frame control bytes in little-endian byteorder
 579  */
 580 static inline bool ieee80211_is_s1g_beacon(__le16 fc)
 581 {
 582         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE |
 583                                  IEEE80211_FCTL_STYPE)) ==
 584                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON);
 585 }
 586
 587 /**
 588  * ieee80211_next_tbtt_present - check if IEEE80211_FTYPE_EXT &&
 589  * IEEE80211_STYPE_S1G_BEACON && IEEE80211_S1G_BCN_NEXT_TBTT
 590  * @fc: frame control bytes in little-endian byteorder
 591  */
 592 static inline bool ieee80211_next_tbtt_present(__le16 fc)
 593 {
 594         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 595                cpu_to_le16(IEEE80211_FTYPE_EXT | IEEE80211_STYPE_S1G_BEACON) &&
 596                fc & cpu_to_le16(IEEE80211_S1G_BCN_NEXT_TBTT);
 597 }
 598
 599 /**
 600  * ieee80211_is_s1g_short_beacon - check if next tbtt present bit is set. Only
 601  * true for S1G beacons when they're short.
 602  * @fc: frame control bytes in little-endian byteorder
 603  */
 604 static inline bool ieee80211_is_s1g_short_beacon(__le16 fc)
 605 {
 606         return ieee80211_is_s1g_beacon(fc) && ieee80211_next_tbtt_present(fc);
 607 }
 608
 609 /**
 610  * ieee80211_is_atim - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ATIM
 611  * @fc: frame control bytes in little-endian byteorder
 612  */
 613 static inline bool ieee80211_is_atim(__le16 fc)
 614 {
 615         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 616                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ATIM);
 617 }
 618
 619 /**
 620  * ieee80211_is_disassoc - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DISASSOC
 621  * @fc: frame control bytes in little-endian byteorder
 622  */
 623 static inline bool ieee80211_is_disassoc(__le16 fc)
 624 {
 625         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 626                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DISASSOC);
 627 }
 628
 629 /**
 630  * ieee80211_is_auth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_AUTH
 631  * @fc: frame control bytes in little-endian byteorder
 632  */
 633 static inline bool ieee80211_is_auth(__le16 fc)
 634 {
 635         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 636                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 637 }
 638
 639 /**
 640  * ieee80211_is_deauth - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_DEAUTH
 641  * @fc: frame control bytes in little-endian byteorder
 642  */
 643 static inline bool ieee80211_is_deauth(__le16 fc)
 644 {
 645         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 646                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_DEAUTH);
 647 }
 648
 649 /**
 650  * ieee80211_is_action - check if IEEE80211_FTYPE_MGMT && IEEE80211_STYPE_ACTION
 651  * @fc: frame control bytes in little-endian byteorder
 652  */
 653 static inline bool ieee80211_is_action(__le16 fc)
 654 {
 655         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 656                cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION);
 657 }
 658
 659 /**
 660  * ieee80211_is_back_req - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK_REQ
 661  * @fc: frame control bytes in little-endian byteorder
 662  */
 663 static inline bool ieee80211_is_back_req(__le16 fc)
 664 {
 665         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 666                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK_REQ);
 667 }
 668
 669 /**
 670  * ieee80211_is_back - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_BACK
 671  * @fc: frame control bytes in little-endian byteorder
 672  */
 673 static inline bool ieee80211_is_back(__le16 fc)
 674 {
 675         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 676                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_BACK);
 677 }
 678
 679 /**
 680  * ieee80211_is_pspoll - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_PSPOLL
 681  * @fc: frame control bytes in little-endian byteorder
 682  */
 683 static inline bool ieee80211_is_pspoll(__le16 fc)
 684 {
 685         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 686                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
 687 }
 688
 689 /**
 690  * ieee80211_is_rts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_RTS
 691  * @fc: frame control bytes in little-endian byteorder
 692  */
 693 static inline bool ieee80211_is_rts(__le16 fc)
 694 {
 695         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 696                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 697 }
 698
 699 /**
 700  * ieee80211_is_cts - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CTS
 701  * @fc: frame control bytes in little-endian byteorder
 702  */
 703 static inline bool ieee80211_is_cts(__le16 fc)
 704 {
 705         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 706                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 707 }
 708
 709 /**
 710  * ieee80211_is_ack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_ACK
 711  * @fc: frame control bytes in little-endian byteorder
 712  */
 713 static inline bool ieee80211_is_ack(__le16 fc)
 714 {
 715         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 716                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK);
 717 }
 718
 719 /**
 720  * ieee80211_is_cfend - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFEND
 721  * @fc: frame control bytes in little-endian byteorder
 722  */
 723 static inline bool ieee80211_is_cfend(__le16 fc)
 724 {
 725         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 726                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFEND);
 727 }
 728
 729 /**
 730  * ieee80211_is_cfendack - check if IEEE80211_FTYPE_CTL && IEEE80211_STYPE_CFENDACK
 731  * @fc: frame control bytes in little-endian byteorder
 732  */
 733 static inline bool ieee80211_is_cfendack(__le16 fc)
 734 {
 735         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 736                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CFENDACK);
 737 }
 738
 739 /**
 740  * ieee80211_is_nullfunc - check if frame is a regular (non-QoS) nullfunc frame
 741  * @fc: frame control bytes in little-endian byteorder
 742  */
 743 static inline bool ieee80211_is_nullfunc(__le16 fc)
 744 {
 745         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 746                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC);
 747 }
 748
 749 /**
 750  * ieee80211_is_qos_nullfunc - check if frame is a QoS nullfunc frame
 751  * @fc: frame control bytes in little-endian byteorder
 752  */
 753 static inline bool ieee80211_is_qos_nullfunc(__le16 fc)
 754 {
 755         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 756                cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_NULLFUNC);
 757 }
 758
 759 static inline unsigned int ieee80211_hdrlen(__le16 fc)
 760 {
 761         unsigned int hdrlen = 24;
 762
 763         if (ieee80211_has_a4(fc))
 764                 hdrlen = 30;
 765
 766         if (ieee80211_is_data_qos(fc)) {
 767                 hdrlen += IEEE80211_QOS_CTL_LEN;
 768                 if (ieee80211_has_order(fc))
 769                         hdrlen += IEEE80211_HT_CTL_LEN;
 770         }
 771
 772         return hdrlen;
 773 }
 774
 775 /**
 776  * ieee80211_is_trigger - check if frame is trigger frame
 777  * @fc: frame control field in little-endian byteorder
 778  */
 779 static inline bool ieee80211_is_trigger(__le16 fc)
 780 {
 781         return (fc & cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
 782                cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_TRIGGER);
 783 }
 784
 785 /**
 786  * ieee80211_is_any_nullfunc - check if frame is regular or QoS nullfunc frame
 787  * @fc: frame control bytes in little-endian byteorder
 788  */
 789 static inline bool ieee80211_is_any_nullfunc(__le16 fc)
 790 {
 791         return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
 792 }
 793
 794 /**
 795  * ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
 796  * @seq_ctrl: frame sequence control bytes in little-endian byteorder
 797  */
 798 static inline bool ieee80211_is_first_frag(__le16 seq_ctrl)
 799 {
 800         return (seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0;
 801 }
 802
 803 /**
 804  * ieee80211_is_frag - check if a frame is a fragment
 805  * @hdr: 802.11 header of the frame
 806  */
 807 static inline bool ieee80211_is_frag(struct ieee80211_hdr *hdr)
 808 {
 809         return ieee80211_has_morefrags(hdr->frame_control) ||
 810                hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
 811 }
 812
 813 struct ieee80211s_hdr {
 814         u8 flags;
 815         u8 ttl;
 816         __le32 seqnum;
 817         u8 eaddr1[6];
 818         u8 eaddr2[6];
 819 } __packed __aligned(2);
 820
 821 /* Mesh flags */
 822 #define MESH_FLAGS_AE_A4        0x1
 823 #define MESH_FLAGS_AE_A5_A6     0x2
 824 #define MESH_FLAGS_AE           0x3
 825 #define MESH_FLAGS_PS_DEEP      0x4
 826
 827 /**
 828  * enum ieee80211_preq_flags - mesh PREQ element flags
 829  *
 830  * @IEEE80211_PREQ_PROACTIVE_PREP_FLAG: proactive PREP subfield
 831  */
 832 enum ieee80211_preq_flags {
 833         IEEE80211_PREQ_PROACTIVE_PREP_FLAG      = 1<<2,
 834 };
 835
 836 /**
 837  * enum ieee80211_preq_target_flags - mesh PREQ element per target flags
 838  *
 839  * @IEEE80211_PREQ_TO_FLAG: target only subfield
 840  * @IEEE80211_PREQ_USN_FLAG: unknown target HWMP sequence number subfield
 841  */
 842 enum ieee80211_preq_target_flags {
 843         IEEE80211_PREQ_TO_FLAG  = 1<<0,
 844         IEEE80211_PREQ_USN_FLAG = 1<<2,
 845 };
 846
 847 /**
 848  * struct ieee80211_quiet_ie - Quiet element
 849  * @count: Quiet Count
 850  * @period: Quiet Period
 851  * @duration: Quiet Duration
 852  * @offset: Quiet Offset
 853  *
 854  * This structure represents the payload of the "Quiet element" as
 855  * described in IEEE Std 802.11-2020 section 9.4.2.22.
 856  */
 857 struct ieee80211_quiet_ie {
 858         u8 count;
 859         u8 period;
 860         __le16 duration;
 861         __le16 offset;
 862 } __packed;
 863
 864 /**
 865  * struct ieee80211_msrment_ie - Measurement element
 866  * @token: Measurement Token
 867  * @mode: Measurement Report Mode
 868  * @type: Measurement Type
 869  * @request: Measurement Request or Measurement Report
 870  *
 871  * This structure represents the payload of both the "Measurement
 872  * Request element" and the "Measurement Report element" as described
 873  * in IEEE Std 802.11-2020 sections 9.4.2.20 and 9.4.2.21.
 874  */
 875 struct ieee80211_msrment_ie {
 876         u8 token;
 877         u8 mode;
 878         u8 type;
 879         u8 request[];
 880 } __packed;
 881
 882 /**
 883  * struct ieee80211_channel_sw_ie - Channel Switch Announcement element
 884  * @mode: Channel Switch Mode
 885  * @new_ch_num: New Channel Number
 886  * @count: Channel Switch Count
 887  *
 888  * This structure represents the payload of the "Channel Switch
 889  * Announcement element" as described in IEEE Std 802.11-2020 section
 890  * 9.4.2.18.
 891  */
 892 struct ieee80211_channel_sw_ie {
 893         u8 mode;
 894         u8 new_ch_num;
 895         u8 count;
 896 } __packed;
 897
 898 /**
 899  * struct ieee80211_ext_chansw_ie - Extended Channel Switch Announcement element
 900  * @mode: Channel Switch Mode
 901  * @new_operating_class: New Operating Class
 902  * @new_ch_num: New Channel Number
 903  * @count: Channel Switch Count
 904  *
 905  * This structure represents the "Extended Channel Switch Announcement
 906  * element" as described in IEEE Std 802.11-2020 section 9.4.2.52.
 907  */
 908 struct ieee80211_ext_chansw_ie {
 909         u8 mode;
 910         u8 new_operating_class;
 911         u8 new_ch_num;
 912         u8 count;
 913 } __packed;
 914
 915 /**
 916  * struct ieee80211_sec_chan_offs_ie - secondary channel offset IE
 917  * @sec_chan_offs: secondary channel offset, uses IEEE80211_HT_PARAM_CHA_SEC_*
 918  *      values here
 919  * This structure represents the "Secondary Channel Offset element"
 920  */
 921 struct ieee80211_sec_chan_offs_ie {
 922         u8 sec_chan_offs;
 923 } __packed;
 924
 925 /**
 926  * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
 927  * @mesh_ttl: Time To Live
 928  * @mesh_flags: Flags
 929  * @mesh_reason: Reason Code
 930  * @mesh_pre_value: Precedence Value
 931  *
 932  * This structure represents the payload of the "Mesh Channel Switch
 933  * Parameters element" as described in IEEE Std 802.11-2020 section
 934  * 9.4.2.102.
 935  */
 936 struct ieee80211_mesh_chansw_params_ie {
 937         u8 mesh_ttl;
 938         u8 mesh_flags;
 939         __le16 mesh_reason;
 940         __le16 mesh_pre_value;
 941 } __packed;
 942
 943 /**
 944  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
 945  * @new_channel_width: New Channel Width
 946  * @new_center_freq_seg0: New Channel Center Frequency Segment 0
 947  * @new_center_freq_seg1: New Channel Center Frequency Segment 1
 948  *
 949  * This structure represents the payload of the "Wide Bandwidth
 950  * Channel Switch element" as described in IEEE Std 802.11-2020
 951  * section 9.4.2.160.
 952  */
 953 struct ieee80211_wide_bw_chansw_ie {
 954         u8 new_channel_width;
 955         u8 new_center_freq_seg0, new_center_freq_seg1;
 956 } __packed;
 957
 958 /**
 959  * struct ieee80211_tim_ie - Traffic Indication Map information element
 960  * @dtim_count: DTIM Count
 961  * @dtim_period: DTIM Period
 962  * @bitmap_ctrl: Bitmap Control
 963  * @virtual_map: Partial Virtual Bitmap
 964  *
 965  * This structure represents the payload of the "TIM element" as
 966  * described in IEEE Std 802.11-2020 section 9.4.2.5.
 967  */
 968 struct ieee80211_tim_ie {
 969         u8 dtim_count;
 970         u8 dtim_period;
 971         u8 bitmap_ctrl;
 972         /* variable size: 1 - 251 bytes */
 973         u8 virtual_map[1];
 974 } __packed;
 975
 976 /**
 977  * struct ieee80211_meshconf_ie - Mesh Configuration element
 978  * @meshconf_psel: Active Path Selection Protocol Identifier
 979  * @meshconf_pmetric: Active Path Selection Metric Identifier
 980  * @meshconf_congest: Congestion Control Mode Identifier
 981  * @meshconf_synch: Synchronization Method Identifier
 982  * @meshconf_auth: Authentication Protocol Identifier
 983  * @meshconf_form: Mesh Formation Info
 984  * @meshconf_cap: Mesh Capability (see &enum mesh_config_capab_flags)
 985  *
 986  * This structure represents the payload of the "Mesh Configuration
 987  * element" as described in IEEE Std 802.11-2020 section 9.4.2.97.
 988  */
 989 struct ieee80211_meshconf_ie {
 990         u8 meshconf_psel;
 991         u8 meshconf_pmetric;
 992         u8 meshconf_congest;
 993         u8 meshconf_synch;
 994         u8 meshconf_auth;
 995         u8 meshconf_form;
 996         u8 meshconf_cap;
 997 } __packed;
 998
 999 /**
1000  * enum mesh_config_capab_flags - Mesh Configuration IE capability field flags
1001  *
1002  * @IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS: STA is willing to establish
1003  *      additional mesh peerings with other mesh STAs
1004  * @IEEE80211_MESHCONF_CAPAB_FORWARDING: the STA forwards MSDUs
1005  * @IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING: TBTT adjustment procedure
1006  *      is ongoing
1007  * @IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL: STA is in deep sleep mode or has
1008  *      neighbors in deep sleep mode
1009  *
1010  * Enumerates the "Mesh Capability" as described in IEEE Std
1011  * 802.11-2020 section 9.4.2.97.7.
1012  */
1013 enum mesh_config_capab_flags {
1014         IEEE80211_MESHCONF_CAPAB_ACCEPT_PLINKS          = 0x01,
1015         IEEE80211_MESHCONF_CAPAB_FORWARDING             = 0x08,
1016         IEEE80211_MESHCONF_CAPAB_TBTT_ADJUSTING         = 0x20,
1017         IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL       = 0x40,
1018 };
1019
1020 #define IEEE80211_MESHCONF_FORM_CONNECTED_TO_GATE 0x1
1021
1022 /*
1023  * mesh channel switch parameters element's flag indicator
1024  *
1025  */
1026 #define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
1027 #define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
1028 #define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
1029
1030 /**
1031  * struct ieee80211_rann_ie - RANN (root announcement) element
1032  * @rann_flags: Flags
1033  * @rann_hopcount: Hop Count
1034  * @rann_ttl: Element TTL
1035  * @rann_addr: Root Mesh STA Address
1036  * @rann_seq: HWMP Sequence Number
1037  * @rann_interval: Interval
1038  * @rann_metric: Metric
1039  *
1040  * This structure represents the payload of the "RANN element" as
1041  * described in IEEE Std 802.11-2020 section 9.4.2.111.
1042  */
1043 struct ieee80211_rann_ie {
1044         u8 rann_flags;
1045         u8 rann_hopcount;
1046         u8 rann_ttl;
1047         u8 rann_addr[6];
1048         __le32 rann_seq;
1049         __le32 rann_interval;
1050         __le32 rann_metric;
1051 } __packed;
1052
1053 enum ieee80211_rann_flags {
1054         RANN_FLAG_IS_GATE = 1 << 0,
1055 };
1056
1057 enum ieee80211_ht_chanwidth_values {
1058         IEEE80211_HT_CHANWIDTH_20MHZ = 0,
1059         IEEE80211_HT_CHANWIDTH_ANY = 1,
1060 };
1061
1062 /**
1063  * enum ieee80211_vht_opmode_bits - VHT operating mode field bits
1064  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
1065  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
1066  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
1067  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
1068  * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
1069  * @IEEE80211_OPMODE_NOTIF_BW_160_80P80: 160 / 80+80 MHz indicator flag
1070  * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
1071  *      (the NSS value is the value of this field + 1)
1072  * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
1073  * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
1074  *      using a beamforming steering matrix
1075  */
1076 enum ieee80211_vht_opmode_bits {
1077         IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK   = 0x03,
1078         IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ  = 0,
1079         IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ  = 1,
1080         IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ  = 2,
1081         IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ = 3,
1082         IEEE80211_OPMODE_NOTIF_BW_160_80P80     = 0x04,
1083         IEEE80211_OPMODE_NOTIF_RX_NSS_MASK      = 0x70,
1084         IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT     = 4,
1085         IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF   = 0x80,
1086 };
1087
1088 /**
1089  * enum ieee80211_s1g_chanwidth
1090  * These are defined in IEEE802.11-2016ah Table 10-20
1091  * as BSS Channel Width
1092  *
1093  * @IEEE80211_S1G_CHANWIDTH_1MHZ: 1MHz operating channel
1094  * @IEEE80211_S1G_CHANWIDTH_2MHZ: 2MHz operating channel
1095  * @IEEE80211_S1G_CHANWIDTH_4MHZ: 4MHz operating channel
1096  * @IEEE80211_S1G_CHANWIDTH_8MHZ: 8MHz operating channel
1097  * @IEEE80211_S1G_CHANWIDTH_16MHZ: 16MHz operating channel
1098  */
1099 enum ieee80211_s1g_chanwidth {
1100         IEEE80211_S1G_CHANWIDTH_1MHZ = 0,
1101         IEEE80211_S1G_CHANWIDTH_2MHZ = 1,
1102         IEEE80211_S1G_CHANWIDTH_4MHZ = 3,
1103         IEEE80211_S1G_CHANWIDTH_8MHZ = 7,
1104         IEEE80211_S1G_CHANWIDTH_16MHZ = 15,
1105 };
1106
1107 #define WLAN_SA_QUERY_TR_ID_LEN 2
1108 #define WLAN_MEMBERSHIP_LEN 8
1109 #define WLAN_USER_POSITION_LEN 16
1110
1111 /**
1112  * struct ieee80211_tpc_report_ie - TPC Report element
1113  * @tx_power: Transmit Power
1114  * @link_margin: Link Margin
1115  *
1116  * This structure represents the payload of the "TPC Report element" as
1117  * described in IEEE Std 802.11-2020 section 9.4.2.16.
1118  */
1119 struct ieee80211_tpc_report_ie {
1120         u8 tx_power;
1121         u8 link_margin;
1122 } __packed;
1123
1124 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_MASK     GENMASK(2, 1)
1125 #define IEEE80211_ADDBA_EXT_FRAG_LEVEL_SHIFT    1
1126 #define IEEE80211_ADDBA_EXT_NO_FRAG             BIT(0)
1127 #define IEEE80211_ADDBA_EXT_BUF_SIZE_MASK       GENMASK(7, 5)
1128 #define IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT      10
1129
1130 struct ieee80211_addba_ext_ie {
1131         u8 data;
1132 } __packed;
1133
1134 /**
1135  * struct ieee80211_s1g_bcn_compat_ie - S1G Beacon Compatibility element
1136  * @compat_info: Compatibility Information
1137  * @beacon_int: Beacon Interval
1138  * @tsf_completion: TSF Completion
1139  *
1140  * This structure represents the payload of the "S1G Beacon
1141  * Compatibility element" as described in IEEE Std 802.11-2020 section
1142  * 9.4.2.196.
1143  */
1144 struct ieee80211_s1g_bcn_compat_ie {
1145         __le16 compat_info;
1146         __le16 beacon_int;
1147         __le32 tsf_completion;
1148 } __packed;
1149
1150 /**
1151  * struct ieee80211_s1g_oper_ie - S1G Operation element
1152  * @ch_width: S1G Operation Information Channel Width
1153  * @oper_class: S1G Operation Information Operating Class
1154  * @primary_ch: S1G Operation Information Primary Channel Number
1155  * @oper_ch: S1G Operation Information  Channel Center Frequency
1156  * @basic_mcs_nss: Basic S1G-MCS and NSS Set
1157  *
1158  * This structure represents the payload of the "S1G Operation
1159  * element" as described in IEEE Std 802.11-2020 section 9.4.2.212.
1160  */
1161 struct ieee80211_s1g_oper_ie {
1162         u8 ch_width;
1163         u8 oper_class;
1164         u8 primary_ch;
1165         u8 oper_ch;
1166         __le16 basic_mcs_nss;
1167 } __packed;
1168
1169 /**
1170  * struct ieee80211_aid_response_ie - AID Response element
1171  * @aid: AID/Group AID
1172  * @switch_count: AID Switch Count
1173  * @response_int: AID Response Interval
1174  *
1175  * This structure represents the payload of the "AID Response element"
1176  * as described in IEEE Std 802.11-2020 section 9.4.2.194.
1177  */
1178 struct ieee80211_aid_response_ie {
1179         __le16 aid;
1180         u8 switch_count;
1181         __le16 response_int;
1182 } __packed;
1183
1184 struct ieee80211_s1g_cap {
1185         u8 capab_info[10];
1186         u8 supp_mcs_nss[5];
1187 } __packed;
1188
1189 struct ieee80211_ext {
1190         __le16 frame_control;
1191         __le16 duration;
1192         union {
1193                 struct {
1194                         u8 sa[6];
1195                         __le32 timestamp;
1196                         u8 change_seq;
1197                         u8 variable[0];
1198                 } __packed s1g_beacon;
1199                 struct {
1200                         u8 sa[6];
1201                         __le32 timestamp;
1202                         u8 change_seq;
1203                         u8 next_tbtt[3];
1204                         u8 variable[0];
1205                 } __packed s1g_short_beacon;
1206         } u;
1207 } __packed __aligned(2);
1208
1209 #define IEEE80211_TWT_CONTROL_NDP                       BIT(0)
1210 #define IEEE80211_TWT_CONTROL_RESP_MODE                 BIT(1)
1211 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST        BIT(3)
1212 #define IEEE80211_TWT_CONTROL_RX_DISABLED               BIT(4)
1213 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT             BIT(5)
1214
1215 #define IEEE80211_TWT_REQTYPE_REQUEST                   BIT(0)
1216 #define IEEE80211_TWT_REQTYPE_SETUP_CMD                 GENMASK(3, 1)
1217 #define IEEE80211_TWT_REQTYPE_TRIGGER                   BIT(4)
1218 #define IEEE80211_TWT_REQTYPE_IMPLICIT                  BIT(5)
1219 #define IEEE80211_TWT_REQTYPE_FLOWTYPE                  BIT(6)
1220 #define IEEE80211_TWT_REQTYPE_FLOWID                    GENMASK(9, 7)
1221 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP              GENMASK(14, 10)
1222 #define IEEE80211_TWT_REQTYPE_PROTECTION                BIT(15)
1223
1224 enum ieee80211_twt_setup_cmd {
1225         TWT_SETUP_CMD_REQUEST,
1226         TWT_SETUP_CMD_SUGGEST,
1227         TWT_SETUP_CMD_DEMAND,
1228         TWT_SETUP_CMD_GROUPING,
1229         TWT_SETUP_CMD_ACCEPT,
1230         TWT_SETUP_CMD_ALTERNATE,
1231         TWT_SETUP_CMD_DICTATE,
1232         TWT_SETUP_CMD_REJECT,
1233 };
1234
1235 struct ieee80211_twt_params {
1236         __le16 req_type;
1237         __le64 twt;
1238         u8 min_twt_dur;
1239         __le16 mantissa;
1240         u8 channel;
1241 } __packed;
1242
1243 struct ieee80211_twt_setup {
1244         u8 dialog_token;
1245         u8 element_id;
1246         u8 length;
1247         u8 control;
1248         u8 params[];
1249 } __packed;
1250
1251 struct ieee80211_mgmt {
1252         __le16 frame_control;
1253         __le16 duration;
1254         u8 da[6];
1255         u8 sa[6];
1256         u8 bssid[6];
1257         __le16 seq_ctrl;
1258         union {
1259                 struct {
1260                         __le16 auth_alg;
1261                         __le16 auth_transaction;
1262                         __le16 status_code;
1263                         /* possibly followed by Challenge text */
1264                         u8 variable[];
1265                 } __packed __aligned(4) auth;
1266                 struct {
1267                         __le16 reason_code;
1268                 } __packed __aligned(4) deauth;
1269                 struct {
1270                         __le16 capab_info;
1271                         __le16 listen_interval;
1272                         /* followed by SSID and Supported rates */
1273                         u8 variable[];
1274                 } __packed __aligned(4) assoc_req;
1275                 struct {
1276                         __le16 capab_info;
1277                         __le16 status_code;
1278                         __le16 aid;
1279                         /* followed by Supported rates */
1280                         u8 variable[];
1281                 } __packed __aligned(4) assoc_resp, reassoc_resp;
1282                 struct {
1283                         __le16 capab_info;
1284                         __le16 status_code;
1285                         u8 variable[];
1286                 } __packed __aligned(4) s1g_assoc_resp, s1g_reassoc_resp;
1287                 struct {
1288                         __le16 capab_info;
1289                         __le16 listen_interval;
1290                         u8 current_ap[6];
1291                         /* followed by SSID and Supported rates */
1292                         u8 variable[];
1293                 } __packed __aligned(4) reassoc_req;
1294                 struct {
1295                         __le16 reason_code;
1296                 } __packed __aligned(4) disassoc;
1297                 struct {
1298                         __le64 timestamp;
1299                         __le16 beacon_int;
1300                         __le16 capab_info;
1301                         /* followed by some of SSID, Supported rates,
1302                          * FH Params, DS Params, CF Params, IBSS Params, TIM */
1303                         u8 variable[];
1304                 } __packed __aligned(4) beacon;
1305                 struct {
1306                         /* only variable items: SSID, Supported rates */
1307                         DECLARE_FLEX_ARRAY(u8, variable);
1308                 } __packed __aligned(4) probe_req;
1309                 struct {
1310                         __le64 timestamp;
1311                         __le16 beacon_int;
1312                         __le16 capab_info;
1313                         /* followed by some of SSID, Supported rates,
1314                          * FH Params, DS Params, CF Params, IBSS Params */
1315                         u8 variable[];
1316                 } __packed __aligned(4) probe_resp;
1317                 struct {
1318                         u8 category;
1319                         union {
1320                                 struct {
1321                                         u8 action_code;
1322                                         u8 dialog_token;
1323                                         u8 status_code;
1324                                         u8 variable[];
1325                                 } __packed wme_action;
1326                                 struct{
1327                                         u8 action_code;
1328                                         u8 variable[];
1329                                 } __packed chan_switch;
1330                                 struct{
1331                                         u8 action_code;
1332                                         struct ieee80211_ext_chansw_ie data;
1333                                         u8 variable[];
1334                                 } __packed ext_chan_switch;
1335                                 struct{
1336                                         u8 action_code;
1337                                         u8 dialog_token;
1338                                         u8 element_id;
1339                                         u8 length;
1340                                         struct ieee80211_msrment_ie msr_elem;
1341                                 } __packed measurement;
1342                                 struct{
1343                                         u8 action_code;
1344                                         u8 dialog_token;
1345                                         __le16 capab;
1346                                         __le16 timeout;
1347                                         __le16 start_seq_num;
1348                                         /* followed by BA Extension */
1349                                         u8 variable[];
1350                                 } __packed addba_req;
1351                                 struct{
1352                                         u8 action_code;
1353                                         u8 dialog_token;
1354                                         __le16 status;
1355                                         __le16 capab;
1356                                         __le16 timeout;
1357                                 } __packed addba_resp;
1358                                 struct{
1359                                         u8 action_code;
1360                                         __le16 params;
1361                                         __le16 reason_code;
1362                                 } __packed delba;
1363                                 struct {
1364                                         u8 action_code;
1365                                         u8 variable[];
1366                                 } __packed self_prot;
1367                                 struct{
1368                                         u8 action_code;
1369                                         u8 variable[];
1370                                 } __packed mesh_action;
1371                                 struct {
1372                                         u8 action;
1373                                         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
1374                                 } __packed sa_query;
1375                                 struct {
1376                                         u8 action;
1377                                         u8 smps_control;
1378                                 } __packed ht_smps;
1379                                 struct {
1380                                         u8 action_code;
1381                                         u8 chanwidth;
1382                                 } __packed ht_notify_cw;
1383                                 struct {
1384                                         u8 action_code;
1385                                         u8 dialog_token;
1386                                         __le16 capability;
1387                                         u8 variable[0];
1388                                 } __packed tdls_discover_resp;
1389                                 struct {
1390                                         u8 action_code;
1391                                         u8 operating_mode;
1392                                 } __packed vht_opmode_notif;
1393                                 struct {
1394                                         u8 action_code;
1395                                         u8 membership[WLAN_MEMBERSHIP_LEN];
1396                                         u8 position[WLAN_USER_POSITION_LEN];
1397                                 } __packed vht_group_notif;
1398                                 struct {
1399                                         u8 action_code;
1400                                         u8 dialog_token;
1401                                         u8 tpc_elem_id;
1402                                         u8 tpc_elem_length;
1403                                         struct ieee80211_tpc_report_ie tpc;
1404                                 } __packed tpc_report;
1405                                 struct {
1406                                         u8 action_code;
1407                                         u8 dialog_token;
1408                                         u8 follow_up;
1409                                         u8 tod[6];
1410                                         u8 toa[6];
1411                                         __le16 tod_error;
1412                                         __le16 toa_error;
1413                                         u8 variable[];
1414                                 } __packed ftm;
1415                                 struct {
1416                                         u8 action_code;
1417                                         u8 variable[];
1418                                 } __packed s1g;
1419                                 struct {
1420                                         u8 action_code;
1421                                         u8 dialog_token;
1422                                         u8 follow_up;
1423                                         u32 tod;
1424                                         u32 toa;
1425                                         u8 max_tod_error;
1426                                         u8 max_toa_error;
1427                                 } __packed wnm_timing_msr;
1428                         } u;
1429                 } __packed __aligned(4) action;
1430                 DECLARE_FLEX_ARRAY(u8, body); /* Generic frame body */
1431         } u __aligned(2);
1432 } __packed __aligned(2);
1433
1434 /* Supported rates membership selectors */
1435 #define BSS_MEMBERSHIP_SELECTOR_HT_PHY  127
1436 #define BSS_MEMBERSHIP_SELECTOR_VHT_PHY 126
1437 #define BSS_MEMBERSHIP_SELECTOR_GLK     125
1438 #define BSS_MEMBERSHIP_SELECTOR_EPS     124
1439 #define BSS_MEMBERSHIP_SELECTOR_SAE_H2E 123
1440 #define BSS_MEMBERSHIP_SELECTOR_HE_PHY  122
1441 #define BSS_MEMBERSHIP_SELECTOR_EHT_PHY 121
1442
1443 /* mgmt header + 1 byte category code */
1444 #define IEEE80211_MIN_ACTION_SIZE offsetof(struct ieee80211_mgmt, u.action.u)
1445
1446
1447 /* Management MIC information element (IEEE 802.11w) */
1448 struct ieee80211_mmie {
1449         u8 element_id;
1450         u8 length;
1451         __le16 key_id;
1452         u8 sequence_number[6];
1453         u8 mic[8];
1454 } __packed;
1455
1456 /* Management MIC information element (IEEE 802.11w) for GMAC and CMAC-256 */
1457 struct ieee80211_mmie_16 {
1458         u8 element_id;
1459         u8 length;
1460         __le16 key_id;
1461         u8 sequence_number[6];
1462         u8 mic[16];
1463 } __packed;
1464
1465 struct ieee80211_vendor_ie {
1466         u8 element_id;
1467         u8 len;
1468         u8 oui[3];
1469         u8 oui_type;
1470 } __packed;
1471
1472 struct ieee80211_wmm_ac_param {
1473         u8 aci_aifsn; /* AIFSN, ACM, ACI */
1474         u8 cw; /* ECWmin, ECWmax (CW = 2^ECW - 1) */
1475         __le16 txop_limit;
1476 } __packed;
1477
1478 struct ieee80211_wmm_param_ie {
1479         u8 element_id; /* Element ID: 221 (0xdd); */
1480         u8 len; /* Length: 24 */
1481         /* required fields for WMM version 1 */
1482         u8 oui[3]; /* 00:50:f2 */
1483         u8 oui_type; /* 2 */
1484         u8 oui_subtype; /* 1 */
1485         u8 version; /* 1 for WMM version 1.0 */
1486         u8 qos_info; /* AP/STA specific QoS info */
1487         u8 reserved; /* 0 */
1488         /* AC_BE, AC_BK, AC_VI, AC_VO */
1489         struct ieee80211_wmm_ac_param ac[4];
1490 } __packed;
1491
1492 /* Control frames */
1493 struct ieee80211_rts {
1494         __le16 frame_control;
1495         __le16 duration;
1496         u8 ra[6];
1497         u8 ta[6];
1498 } __packed __aligned(2);
1499
1500 struct ieee80211_cts {
1501         __le16 frame_control;
1502         __le16 duration;
1503         u8 ra[6];
1504 } __packed __aligned(2);
1505
1506 struct ieee80211_pspoll {
1507         __le16 frame_control;
1508         __le16 aid;
1509         u8 bssid[6];
1510         u8 ta[6];
1511 } __packed __aligned(2);
1512
1513 /* TDLS */
1514
1515 /* Channel switch timing */
1516 struct ieee80211_ch_switch_timing {
1517         __le16 switch_time;
1518         __le16 switch_timeout;
1519 } __packed;
1520
1521 /* Link-id information element */
1522 struct ieee80211_tdls_lnkie {
1523         u8 ie_type; /* Link Identifier IE */
1524         u8 ie_len;
1525         u8 bssid[6];
1526         u8 init_sta[6];
1527         u8 resp_sta[6];
1528 } __packed;
1529
1530 struct ieee80211_tdls_data {
1531         u8 da[6];
1532         u8 sa[6];
1533         __be16 ether_type;
1534         u8 payload_type;
1535         u8 category;
1536         u8 action_code;
1537         union {
1538                 struct {
1539                         u8 dialog_token;
1540                         __le16 capability;
1541                         u8 variable[0];
1542                 } __packed setup_req;
1543                 struct {
1544                         __le16 status_code;
1545                         u8 dialog_token;
1546                         __le16 capability;
1547                         u8 variable[0];
1548                 } __packed setup_resp;
1549                 struct {
1550                         __le16 status_code;
1551                         u8 dialog_token;
1552                         u8 variable[0];
1553                 } __packed setup_cfm;
1554                 struct {
1555                         __le16 reason_code;
1556                         u8 variable[0];
1557                 } __packed teardown;
1558                 struct {
1559                         u8 dialog_token;
1560                         u8 variable[0];
1561                 } __packed discover_req;
1562                 struct {
1563                         u8 target_channel;
1564                         u8 oper_class;
1565                         u8 variable[0];
1566                 } __packed chan_switch_req;
1567                 struct {
1568                         __le16 status_code;
1569                         u8 variable[0];
1570                 } __packed chan_switch_resp;
1571         } u;
1572 } __packed;
1573
1574 /*
1575  * Peer-to-Peer IE attribute related definitions.
1576  */
1577 /*
1578  * enum ieee80211_p2p_attr_id - identifies type of peer-to-peer attribute.
1579  */
1580 enum ieee80211_p2p_attr_id {
1581         IEEE80211_P2P_ATTR_STATUS = 0,
1582         IEEE80211_P2P_ATTR_MINOR_REASON,
1583         IEEE80211_P2P_ATTR_CAPABILITY,
1584         IEEE80211_P2P_ATTR_DEVICE_ID,
1585         IEEE80211_P2P_ATTR_GO_INTENT,
1586         IEEE80211_P2P_ATTR_GO_CONFIG_TIMEOUT,
1587         IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
1588         IEEE80211_P2P_ATTR_GROUP_BSSID,
1589         IEEE80211_P2P_ATTR_EXT_LISTEN_TIMING,
1590         IEEE80211_P2P_ATTR_INTENDED_IFACE_ADDR,
1591         IEEE80211_P2P_ATTR_MANAGABILITY,
1592         IEEE80211_P2P_ATTR_CHANNEL_LIST,
1593         IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
1594         IEEE80211_P2P_ATTR_DEVICE_INFO,
1595         IEEE80211_P2P_ATTR_GROUP_INFO,
1596         IEEE80211_P2P_ATTR_GROUP_ID,
1597         IEEE80211_P2P_ATTR_INTERFACE,
1598         IEEE80211_P2P_ATTR_OPER_CHANNEL,
1599         IEEE80211_P2P_ATTR_INVITE_FLAGS,
1600         /* 19 - 220: Reserved */
1601         IEEE80211_P2P_ATTR_VENDOR_SPECIFIC = 221,
1602
1603         IEEE80211_P2P_ATTR_MAX
1604 };
1605
1606 /* Notice of Absence attribute - described in P2P spec 4.1.14 */
1607 /* Typical max value used here */
1608 #define IEEE80211_P2P_NOA_DESC_MAX      4
1609
1610 struct ieee80211_p2p_noa_desc {
1611         u8 count;
1612         __le32 duration;
1613         __le32 interval;
1614         __le32 start_time;
1615 } __packed;
1616
1617 struct ieee80211_p2p_noa_attr {
1618         u8 index;
1619         u8 oppps_ctwindow;
1620         struct ieee80211_p2p_noa_desc desc[IEEE80211_P2P_NOA_DESC_MAX];
1621 } __packed;
1622
1623 #define IEEE80211_P2P_OPPPS_ENABLE_BIT          BIT(7)
1624 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK       0x7F
1625
1626 /**
1627  * struct ieee80211_bar - Block Ack Request frame format
1628  * @frame_control: Frame Control
1629  * @duration: Duration
1630  * @ra: RA
1631  * @ta: TA
1632  * @control: BAR Control
1633  * @start_seq_num: Starting Sequence Number (see Figure 9-37)
1634  *
1635  * This structure represents the "BlockAckReq frame format"
1636  * as described in IEEE Std 802.11-2020 section 9.3.1.7.
1637 */
1638 struct ieee80211_bar {
1639         __le16 frame_control;
1640         __le16 duration;
1641         __u8 ra[6];
1642         __u8 ta[6];
1643         __le16 control;
1644         __le16 start_seq_num;
1645 } __packed __aligned(2);
1646
1647 /* 802.11 BAR control masks */
1648 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL    0x0000
1649 #define IEEE80211_BAR_CTRL_MULTI_TID            0x0002
1650 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA 0x0004
1651 #define IEEE80211_BAR_CTRL_TID_INFO_MASK        0xf000
1652 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT       12
1653
1654 /**
1655  * struct ieee80211_ba - HT Block Ack
1656  *
1657  * This structure refers to "HT BlockAck" as
1658  * described in 802.11n draft section 7.2.1.8.1
1659  */
1660 struct ieee80211_ba {
1661         __le16 frame_control;
1662         __le16 duration;
1663         u8 ra[6];
1664         u8 ta[6];
1665         __le16 control;
1666
1667         __le16 start_seq_num;
1668         u8 bitmap[8];
1669 } __packed;
1670
1671 #define IEEE80211_HT_MCS_MASK_LEN               10
1672
1673 /**
1674  * struct ieee80211_mcs_info - Supported MCS Set field
1675  * @rx_mask: RX mask
1676  * @rx_highest: highest supported RX rate. If set represents
1677  *      the highest supported RX data rate in units of 1 Mbps.
1678  *      If this field is 0 this value should not be used to
1679  *      consider the highest RX data rate supported.
1680  * @tx_params: TX parameters
1681  * @reserved: Reserved bits
1682  *
1683  * This structure represents the "Supported MCS Set field" as
1684  * described in IEEE Std 802.11-2020 section 9.4.2.55.4.
1685  */
1686 struct ieee80211_mcs_info {
1687         u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
1688         __le16 rx_highest;
1689         u8 tx_params;
1690         u8 reserved[3];
1691 } __packed;
1692
1693 /* 802.11n HT capability MSC set */
1694 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK        0x3ff
1695 #define IEEE80211_HT_MCS_TX_DEFINED             0x01
1696 #define IEEE80211_HT_MCS_TX_RX_DIFF             0x02
1697 /* value 0 == 1 stream etc */
1698 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK    0x0C
1699 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT   2
1700 #define         IEEE80211_HT_MCS_TX_MAX_STREAMS 4
1701 #define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION  0x10
1702
1703 /*
1704  * 802.11n D5.0 20.3.5 / 20.6 says:
1705  * - indices 0 to 7 and 32 are single spatial stream
1706  * - 8 to 31 are multiple spatial streams using equal modulation
1707  *   [8..15 for two streams, 16..23 for three and 24..31 for four]
1708  * - remainder are multiple spatial streams using unequal modulation
1709  */
1710 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
1711 #define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
1712         (IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
1713
1714 /**
1715  * struct ieee80211_ht_cap - HT capabilities element
1716  * @cap_info: HT Capability Information
1717  * @ampdu_params_info: A-MPDU Parameters
1718  * @mcs: Supported MCS Set
1719  * @extended_ht_cap_info: HT Extended Capabilities
1720  * @tx_BF_cap_info: Transmit Beamforming Capabilities
1721  * @antenna_selection_info: ASEL Capability
1722  *
1723  * This structure represents the payload of the "HT Capabilities
1724  * element" as described in IEEE Std 802.11-2020 section 9.4.2.55.
1725  */
1726 struct ieee80211_ht_cap {
1727         __le16 cap_info;
1728         u8 ampdu_params_info;
1729
1730         /* 16 bytes MCS information */
1731         struct ieee80211_mcs_info mcs;
1732
1733         __le16 extended_ht_cap_info;
1734         __le32 tx_BF_cap_info;
1735         u8 antenna_selection_info;
1736 } __packed;
1737
1738 /* 802.11n HT capabilities masks (for cap_info) */
1739 #define IEEE80211_HT_CAP_LDPC_CODING            0x0001
1740 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40        0x0002
1741 #define IEEE80211_HT_CAP_SM_PS                  0x000C
1742 #define         IEEE80211_HT_CAP_SM_PS_SHIFT    2
1743 #define IEEE80211_HT_CAP_GRN_FLD                0x0010
1744 #define IEEE80211_HT_CAP_SGI_20                 0x0020
1745 #define IEEE80211_HT_CAP_SGI_40                 0x0040
1746 #define IEEE80211_HT_CAP_TX_STBC                0x0080
1747 #define IEEE80211_HT_CAP_RX_STBC                0x0300
1748 #define         IEEE80211_HT_CAP_RX_STBC_SHIFT  8
1749 #define IEEE80211_HT_CAP_DELAY_BA               0x0400
1750 #define IEEE80211_HT_CAP_MAX_AMSDU              0x0800
1751 #define IEEE80211_HT_CAP_DSSSCCK40              0x1000
1752 #define IEEE80211_HT_CAP_RESERVED               0x2000
1753 #define IEEE80211_HT_CAP_40MHZ_INTOLERANT       0x4000
1754 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT         0x8000
1755
1756 /* 802.11n HT extended capabilities masks (for extended_ht_cap_info) */
1757 #define IEEE80211_HT_EXT_CAP_PCO                0x0001
1758 #define IEEE80211_HT_EXT_CAP_PCO_TIME           0x0006
1759 #define         IEEE80211_HT_EXT_CAP_PCO_TIME_SHIFT     1
1760 #define IEEE80211_HT_EXT_CAP_MCS_FB             0x0300
1761 #define         IEEE80211_HT_EXT_CAP_MCS_FB_SHIFT       8
1762 #define IEEE80211_HT_EXT_CAP_HTC_SUP            0x0400
1763 #define IEEE80211_HT_EXT_CAP_RD_RESPONDER       0x0800
1764
1765 /* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
1766 #define IEEE80211_HT_AMPDU_PARM_FACTOR          0x03
1767 #define IEEE80211_HT_AMPDU_PARM_DENSITY         0x1C
1768 #define         IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT   2
1769
1770 /*
1771  * Maximum length of AMPDU that the STA can receive in high-throughput (HT).
1772  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1773  */
1774 enum ieee80211_max_ampdu_length_exp {
1775         IEEE80211_HT_MAX_AMPDU_8K = 0,
1776         IEEE80211_HT_MAX_AMPDU_16K = 1,
1777         IEEE80211_HT_MAX_AMPDU_32K = 2,
1778         IEEE80211_HT_MAX_AMPDU_64K = 3
1779 };
1780
1781 /*
1782  * Maximum length of AMPDU that the STA can receive in VHT.
1783  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
1784  */
1785 enum ieee80211_vht_max_ampdu_length_exp {
1786         IEEE80211_VHT_MAX_AMPDU_8K = 0,
1787         IEEE80211_VHT_MAX_AMPDU_16K = 1,
1788         IEEE80211_VHT_MAX_AMPDU_32K = 2,
1789         IEEE80211_VHT_MAX_AMPDU_64K = 3,
1790         IEEE80211_VHT_MAX_AMPDU_128K = 4,
1791         IEEE80211_VHT_MAX_AMPDU_256K = 5,
1792         IEEE80211_VHT_MAX_AMPDU_512K = 6,
1793         IEEE80211_VHT_MAX_AMPDU_1024K = 7
1794 };
1795
1796 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
1797
1798 /* Minimum MPDU start spacing */
1799 enum ieee80211_min_mpdu_spacing {
1800         IEEE80211_HT_MPDU_DENSITY_NONE = 0,     /* No restriction */
1801         IEEE80211_HT_MPDU_DENSITY_0_25 = 1,     /* 1/4 usec */
1802         IEEE80211_HT_MPDU_DENSITY_0_5 = 2,      /* 1/2 usec */
1803         IEEE80211_HT_MPDU_DENSITY_1 = 3,        /* 1 usec */
1804         IEEE80211_HT_MPDU_DENSITY_2 = 4,        /* 2 usec */
1805         IEEE80211_HT_MPDU_DENSITY_4 = 5,        /* 4 usec */
1806         IEEE80211_HT_MPDU_DENSITY_8 = 6,        /* 8 usec */
1807         IEEE80211_HT_MPDU_DENSITY_16 = 7        /* 16 usec */
1808 };
1809
1810 /**
1811  * struct ieee80211_ht_operation - HT operation IE
1812  * @primary_chan: Primary Channel
1813  * @ht_param: HT Operation Information parameters
1814  * @operation_mode: HT Operation Information operation mode
1815  * @stbc_param: HT Operation Information STBC params
1816  * @basic_set: Basic HT-MCS Set
1817  *
1818  * This structure represents the payload of the "HT Operation
1819  * element" as described in IEEE Std 802.11-2020 section 9.4.2.56.
1820  */
1821 struct ieee80211_ht_operation {
1822         u8 primary_chan;
1823         u8 ht_param;
1824         __le16 operation_mode;
1825         __le16 stbc_param;
1826         u8 basic_set[16];
1827 } __packed;
1828
1829 /* for ht_param */
1830 #define IEEE80211_HT_PARAM_CHA_SEC_OFFSET               0x03
1831 #define         IEEE80211_HT_PARAM_CHA_SEC_NONE         0x00
1832 #define         IEEE80211_HT_PARAM_CHA_SEC_ABOVE        0x01
1833 #define         IEEE80211_HT_PARAM_CHA_SEC_BELOW        0x03
1834 #define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY               0x04
1835 #define IEEE80211_HT_PARAM_RIFS_MODE                    0x08
1836
1837 /* for operation_mode */
1838 #define IEEE80211_HT_OP_MODE_PROTECTION                 0x0003
1839 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONE            0
1840 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER       1
1841 #define         IEEE80211_HT_OP_MODE_PROTECTION_20MHZ           2
1842 #define         IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED     3
1843 #define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT           0x0004
1844 #define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT           0x0010
1845 #define IEEE80211_HT_OP_MODE_CCFS2_SHIFT                5
1846 #define IEEE80211_HT_OP_MODE_CCFS2_MASK                 0x1fe0
1847
1848 /* for stbc_param */
1849 #define IEEE80211_HT_STBC_PARAM_DUAL_BEACON             0x0040
1850 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT           0x0080
1851 #define IEEE80211_HT_STBC_PARAM_STBC_BEACON             0x0100
1852 #define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT      0x0200
1853 #define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE              0x0400
1854 #define IEEE80211_HT_STBC_PARAM_PCO_PHASE               0x0800
1855
1856
1857 /* block-ack parameters */
1858 #define IEEE80211_ADDBA_PARAM_AMSDU_MASK 0x0001
1859 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
1860 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
1861 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFC0
1862 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
1863 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
1864
1865 /*
1866  * A-MPDU buffer sizes
1867  * According to HT size varies from 8 to 64 frames
1868  * HE adds the ability to have up to 256 frames.
1869  * EHT adds the ability to have up to 1K frames.
1870  */
1871 #define IEEE80211_MIN_AMPDU_BUF         0x8
1872 #define IEEE80211_MAX_AMPDU_BUF_HT      0x40
1873 #define IEEE80211_MAX_AMPDU_BUF_HE      0x100
1874 #define IEEE80211_MAX_AMPDU_BUF_EHT     0x400
1875
1876
1877 /* Spatial Multiplexing Power Save Modes (for capability) */
1878 #define WLAN_HT_CAP_SM_PS_STATIC        0
1879 #define WLAN_HT_CAP_SM_PS_DYNAMIC       1
1880 #define WLAN_HT_CAP_SM_PS_INVALID       2
1881 #define WLAN_HT_CAP_SM_PS_DISABLED      3
1882
1883 /* for SM power control field lower two bits */
1884 #define WLAN_HT_SMPS_CONTROL_DISABLED   0
1885 #define WLAN_HT_SMPS_CONTROL_STATIC     1
1886 #define WLAN_HT_SMPS_CONTROL_DYNAMIC    3
1887
1888 /**
1889  * struct ieee80211_vht_mcs_info - VHT MCS information
1890  * @rx_mcs_map: RX MCS map 2 bits for each stream, total 8 streams
1891  * @rx_highest: Indicates highest long GI VHT PPDU data rate
1892  *      STA can receive. Rate expressed in units of 1 Mbps.
1893  *      If this field is 0 this value should not be used to
1894  *      consider the highest RX data rate supported.
1895  *      The top 3 bits of this field indicate the Maximum NSTS,total
1896  *      (a beamformee capability.)
1897  * @tx_mcs_map: TX MCS map 2 bits for each stream, total 8 streams
1898  * @tx_highest: Indicates highest long GI VHT PPDU data rate
1899  *      STA can transmit. Rate expressed in units of 1 Mbps.
1900  *      If this field is 0 this value should not be used to
1901  *      consider the highest TX data rate supported.
1902  *      The top 2 bits of this field are reserved, the
1903  *      3rd bit from the top indiciates VHT Extended NSS BW
1904  *      Capability.
1905  */
1906 struct ieee80211_vht_mcs_info {
1907         __le16 rx_mcs_map;
1908         __le16 rx_highest;
1909         __le16 tx_mcs_map;
1910         __le16 tx_highest;
1911 } __packed;
1912
1913 /* for rx_highest */
1914 #define IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT      13
1915 #define IEEE80211_VHT_MAX_NSTS_TOTAL_MASK       (7 << IEEE80211_VHT_MAX_NSTS_TOTAL_SHIFT)
1916
1917 /* for tx_highest */
1918 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE        (1 << 13)
1919
1920 /**
1921  * enum ieee80211_vht_mcs_support - VHT MCS support definitions
1922  * @IEEE80211_VHT_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
1923  *      number of streams
1924  * @IEEE80211_VHT_MCS_SUPPORT_0_8: MCSes 0-8 are supported
1925  * @IEEE80211_VHT_MCS_SUPPORT_0_9: MCSes 0-9 are supported
1926  * @IEEE80211_VHT_MCS_NOT_SUPPORTED: This number of streams isn't supported
1927  *
1928  * These definitions are used in each 2-bit subfield of the @rx_mcs_map
1929  * and @tx_mcs_map fields of &struct ieee80211_vht_mcs_info, which are
1930  * both split into 8 subfields by number of streams. These values indicate
1931  * which MCSes are supported for the number of streams the value appears
1932  * for.
1933  */
1934 enum ieee80211_vht_mcs_support {
1935         IEEE80211_VHT_MCS_SUPPORT_0_7   = 0,
1936         IEEE80211_VHT_MCS_SUPPORT_0_8   = 1,
1937         IEEE80211_VHT_MCS_SUPPORT_0_9   = 2,
1938         IEEE80211_VHT_MCS_NOT_SUPPORTED = 3,
1939 };
1940
1941 /**
1942  * struct ieee80211_vht_cap - VHT capabilities
1943  *
1944  * This structure is the "VHT capabilities element" as
1945  * described in 802.11ac D3.0 8.4.2.160
1946  * @vht_cap_info: VHT capability info
1947  * @supp_mcs: VHT MCS supported rates
1948  */
1949 struct ieee80211_vht_cap {
1950         __le32 vht_cap_info;
1951         struct ieee80211_vht_mcs_info supp_mcs;
1952 } __packed;
1953
1954 /**
1955  * enum ieee80211_vht_chanwidth - VHT channel width
1956  * @IEEE80211_VHT_CHANWIDTH_USE_HT: use the HT operation IE to
1957  *      determine the channel width (20 or 40 MHz)
1958  * @IEEE80211_VHT_CHANWIDTH_80MHZ: 80 MHz bandwidth
1959  * @IEEE80211_VHT_CHANWIDTH_160MHZ: 160 MHz bandwidth
1960  * @IEEE80211_VHT_CHANWIDTH_80P80MHZ: 80+80 MHz bandwidth
1961  */
1962 enum ieee80211_vht_chanwidth {
1963         IEEE80211_VHT_CHANWIDTH_USE_HT          = 0,
1964         IEEE80211_VHT_CHANWIDTH_80MHZ           = 1,
1965         IEEE80211_VHT_CHANWIDTH_160MHZ          = 2,
1966         IEEE80211_VHT_CHANWIDTH_80P80MHZ        = 3,
1967 };
1968
1969 /**
1970  * struct ieee80211_vht_operation - VHT operation IE
1971  *
1972  * This structure is the "VHT operation element" as
1973  * described in 802.11ac D3.0 8.4.2.161
1974  * @chan_width: Operating channel width
1975  * @center_freq_seg0_idx: center freq segment 0 index
1976  * @center_freq_seg1_idx: center freq segment 1 index
1977  * @basic_mcs_set: VHT Basic MCS rate set
1978  */
1979 struct ieee80211_vht_operation {
1980         u8 chan_width;
1981         u8 center_freq_seg0_idx;
1982         u8 center_freq_seg1_idx;
1983         __le16 basic_mcs_set;
1984 } __packed;
1985
1986 /**
1987  * struct ieee80211_he_cap_elem - HE capabilities element
1988  * @mac_cap_info: HE MAC Capabilities Information
1989  * @phy_cap_info: HE PHY Capabilities Information
1990  *
1991  * This structure represents the fixed fields of the payload of the
1992  * "HE capabilities element" as described in IEEE Std 802.11ax-2021
1993  * sections 9.4.2.248.2 and 9.4.2.248.3.
1994  */
1995 struct ieee80211_he_cap_elem {
1996         u8 mac_cap_info[6];
1997         u8 phy_cap_info[11];
1998 } __packed;
1999
2000 #define IEEE80211_TX_RX_MCS_NSS_DESC_MAX_LEN    5
2001
2002 /**
2003  * enum ieee80211_he_mcs_support - HE MCS support definitions
2004  * @IEEE80211_HE_MCS_SUPPORT_0_7: MCSes 0-7 are supported for the
2005  *      number of streams
2006  * @IEEE80211_HE_MCS_SUPPORT_0_9: MCSes 0-9 are supported
2007  * @IEEE80211_HE_MCS_SUPPORT_0_11: MCSes 0-11 are supported
2008  * @IEEE80211_HE_MCS_NOT_SUPPORTED: This number of streams isn't supported
2009  *
2010  * These definitions are used in each 2-bit subfield of the rx_mcs_*
2011  * and tx_mcs_* fields of &struct ieee80211_he_mcs_nss_supp, which are
2012  * both split into 8 subfields by number of streams. These values indicate
2013  * which MCSes are supported for the number of streams the value appears
2014  * for.
2015  */
2016 enum ieee80211_he_mcs_support {
2017         IEEE80211_HE_MCS_SUPPORT_0_7    = 0,
2018         IEEE80211_HE_MCS_SUPPORT_0_9    = 1,
2019         IEEE80211_HE_MCS_SUPPORT_0_11   = 2,
2020         IEEE80211_HE_MCS_NOT_SUPPORTED  = 3,
2021 };
2022
2023 /**
2024  * struct ieee80211_he_mcs_nss_supp - HE Tx/Rx HE MCS NSS Support Field
2025  *
2026  * This structure holds the data required for the Tx/Rx HE MCS NSS Support Field
2027  * described in P802.11ax_D2.0 section 9.4.2.237.4
2028  *
2029  * @rx_mcs_80: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2030  *     widths less than 80MHz.
2031  * @tx_mcs_80: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2032  *     widths less than 80MHz.
2033  * @rx_mcs_160: Rx MCS map 2 bits for each stream, total 8 streams, for channel
2034  *     width 160MHz.
2035  * @tx_mcs_160: Tx MCS map 2 bits for each stream, total 8 streams, for channel
2036  *     width 160MHz.
2037  * @rx_mcs_80p80: Rx MCS map 2 bits for each stream, total 8 streams, for
2038  *     channel width 80p80MHz.
2039  * @tx_mcs_80p80: Tx MCS map 2 bits for each stream, total 8 streams, for
2040  *     channel width 80p80MHz.
2041  */
2042 struct ieee80211_he_mcs_nss_supp {
2043         __le16 rx_mcs_80;
2044         __le16 tx_mcs_80;
2045         __le16 rx_mcs_160;
2046         __le16 tx_mcs_160;
2047         __le16 rx_mcs_80p80;
2048         __le16 tx_mcs_80p80;
2049 } __packed;
2050
2051 /**
2052  * struct ieee80211_he_operation - HE Operation element
2053  * @he_oper_params: HE Operation Parameters + BSS Color Information
2054  * @he_mcs_nss_set: Basic HE-MCS And NSS Set
2055  * @optional: Optional fields VHT Operation Information, Max Co-Hosted
2056  *            BSSID Indicator, and 6 GHz Operation Information
2057  *
2058  * This structure represents the payload of the "HE Operation
2059  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.249.
2060  */
2061 struct ieee80211_he_operation {
2062         __le32 he_oper_params;
2063         __le16 he_mcs_nss_set;
2064         u8 optional[];
2065 } __packed;
2066
2067 /**
2068  * struct ieee80211_he_spr - Spatial Reuse Parameter Set element
2069  * @he_sr_control: SR Control
2070  * @optional: Optional fields Non-SRG OBSS PD Max Offset, SRG OBSS PD
2071  *            Min Offset, SRG OBSS PD Max Offset, SRG BSS Color
2072  *            Bitmap, and SRG Partial BSSID Bitmap
2073  *
2074  * This structure represents the payload of the "Spatial Reuse
2075  * Parameter Set element" as described in IEEE Std 802.11ax-2021
2076  * section 9.4.2.252.
2077  */
2078 struct ieee80211_he_spr {
2079         u8 he_sr_control;
2080         u8 optional[];
2081 } __packed;
2082
2083 /**
2084  * struct ieee80211_he_mu_edca_param_ac_rec - MU AC Parameter Record field
2085  * @aifsn: ACI/AIFSN
2086  * @ecw_min_max: ECWmin/ECWmax
2087  * @mu_edca_timer: MU EDCA Timer
2088  *
2089  * This structure represents the "MU AC Parameter Record" as described
2090  * in IEEE Std 802.11ax-2021 section 9.4.2.251, Figure 9-788p.
2091  */
2092 struct ieee80211_he_mu_edca_param_ac_rec {
2093         u8 aifsn;
2094         u8 ecw_min_max;
2095         u8 mu_edca_timer;
2096 } __packed;
2097
2098 /**
2099  * struct ieee80211_mu_edca_param_set - MU EDCA Parameter Set element
2100  * @mu_qos_info: QoS Info
2101  * @ac_be: MU AC_BE Parameter Record
2102  * @ac_bk: MU AC_BK Parameter Record
2103  * @ac_vi: MU AC_VI Parameter Record
2104  * @ac_vo: MU AC_VO Parameter Record
2105  *
2106  * This structure represents the payload of the "MU EDCA Parameter Set
2107  * element" as described in IEEE Std 802.11ax-2021 section 9.4.2.251.
2108  */
2109 struct ieee80211_mu_edca_param_set {
2110         u8 mu_qos_info;
2111         struct ieee80211_he_mu_edca_param_ac_rec ac_be;
2112         struct ieee80211_he_mu_edca_param_ac_rec ac_bk;
2113         struct ieee80211_he_mu_edca_param_ac_rec ac_vi;
2114         struct ieee80211_he_mu_edca_param_ac_rec ac_vo;
2115 } __packed;
2116
2117 #define IEEE80211_EHT_MCS_NSS_RX 0x0f
2118 #define IEEE80211_EHT_MCS_NSS_TX 0xf0
2119
2120 /**
2121  * struct ieee80211_eht_mcs_nss_supp_20mhz_only - EHT 20MHz only station max
2122  * supported NSS for per MCS.
2123  *
2124  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2125  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2126  * for Tx.
2127  *
2128  * @rx_tx_mcs7_max_nss: indicates the maximum number of spatial streams
2129  *     supported for reception and the maximum number of spatial streams
2130  *     supported for transmission for MCS 0 - 7.
2131  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2132  *     supported for reception and the maximum number of spatial streams
2133  *     supported for transmission for MCS 8 - 9.
2134  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2135  *     supported for reception and the maximum number of spatial streams
2136  *     supported for transmission for MCS 10 - 11.
2137  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
2138  *     supported for reception and the maximum number of spatial streams
2139  *     supported for transmission for MCS 12 - 13.
2140  * @rx_tx_max_nss: array of the previous fields for easier loop access
2141  */
2142 struct ieee80211_eht_mcs_nss_supp_20mhz_only {
2143         union {
2144                 struct {
2145                         u8 rx_tx_mcs7_max_nss;
2146                         u8 rx_tx_mcs9_max_nss;
2147                         u8 rx_tx_mcs11_max_nss;
2148                         u8 rx_tx_mcs13_max_nss;
2149                 };
2150                 u8 rx_tx_max_nss[4];
2151         };
2152 };
2153
2154 /**
2155  * struct ieee80211_eht_mcs_nss_supp_bw - EHT max supported NSS per MCS (except
2156  * 20MHz only stations).
2157  *
2158  * For each field below, bits 0 - 3 indicate the maximal number of spatial
2159  * streams for Rx, and bits 4 - 7 indicate the maximal number of spatial streams
2160  * for Tx.
2161  *
2162  * @rx_tx_mcs9_max_nss: indicates the maximum number of spatial streams
2163  *     supported for reception and the maximum number of spatial streams
2164  *     supported for transmission for MCS 0 - 9.
2165  * @rx_tx_mcs11_max_nss: indicates the maximum number of spatial streams
2166  *     supported for reception and the maximum number of spatial streams
2167  *     supported for transmission for MCS 10 - 11.
2168  * @rx_tx_mcs13_max_nss: indicates the maximum number of spatial streams
2169  *     supported for reception and the maximum number of spatial streams
2170  *     supported for transmission for MCS 12 - 13.
2171  * @rx_tx_max_nss: array of the previous fields for easier loop access
2172  */
2173 struct ieee80211_eht_mcs_nss_supp_bw {
2174         union {
2175                 struct {
2176                         u8 rx_tx_mcs9_max_nss;
2177                         u8 rx_tx_mcs11_max_nss;
2178                         u8 rx_tx_mcs13_max_nss;
2179                 };
2180                 u8 rx_tx_max_nss[3];
2181         };
2182 };
2183
2184 /**
2185  * struct ieee80211_eht_cap_elem_fixed - EHT capabilities fixed data
2186  *
2187  * This structure is the "EHT Capabilities element" fixed fields as
2188  * described in P802.11be_D2.0 section 9.4.2.313.
2189  *
2190  * @mac_cap_info: MAC capabilities, see IEEE80211_EHT_MAC_CAP*
2191  * @phy_cap_info: PHY capabilities, see IEEE80211_EHT_PHY_CAP*
2192  */
2193 struct ieee80211_eht_cap_elem_fixed {
2194         u8 mac_cap_info[2];
2195         u8 phy_cap_info[9];
2196 } __packed;
2197
2198 /**
2199  * struct ieee80211_eht_cap_elem - EHT capabilities element
2200  * @fixed: fixed parts, see &ieee80211_eht_cap_elem_fixed
2201  * @optional: optional parts
2202  */
2203 struct ieee80211_eht_cap_elem {
2204         struct ieee80211_eht_cap_elem_fixed fixed;
2205
2206         /*
2207          * Followed by:
2208          * Supported EHT-MCS And NSS Set field: 4, 3, 6 or 9 octets.
2209          * EHT PPE Thresholds field: variable length.
2210          */
2211         u8 optional[];
2212 } __packed;
2213
2214 #define IEEE80211_EHT_OPER_INFO_PRESENT                         0x01
2215 #define IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT   0x02
2216 #define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION                  0x04
2217 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT         0x08
2218 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK      0x30
2219
2220 /**
2221  * struct ieee80211_eht_operation - eht operation element
2222  *
2223  * This structure is the "EHT Operation Element" fields as
2224  * described in P802.11be_D2.0 section 9.4.2.311
2225  *
2226  * @params: EHT operation element parameters. See &IEEE80211_EHT_OPER_*
2227  * @basic_mcs_nss: indicates the EHT-MCSs for each number of spatial streams in
2228  *     EHT PPDUs that are supported by all EHT STAs in the BSS in transmit and
2229  *     receive.
2230  * @optional: optional parts
2231  */
2232 struct ieee80211_eht_operation {
2233         u8 params;
2234         struct ieee80211_eht_mcs_nss_supp_20mhz_only basic_mcs_nss;
2235         u8 optional[];
2236 } __packed;
2237
2238 /**
2239  * struct ieee80211_eht_operation_info - eht operation information
2240  *
2241  * @control: EHT operation information control.
2242  * @ccfs0: defines a channel center frequency for a 20, 40, 80, 160, or 320 MHz
2243  *     EHT BSS.
2244  * @ccfs1: defines a channel center frequency for a 160 or 320 MHz EHT BSS.
2245  * @optional: optional parts
2246  */
2247 struct ieee80211_eht_operation_info {
2248         u8 control;
2249         u8 ccfs0;
2250         u8 ccfs1;
2251         u8 optional[];
2252 } __packed;
2253
2254 /* 802.11ac VHT Capabilities */
2255 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895                  0x00000000
2256 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991                  0x00000001
2257 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454                 0x00000002
2258 #define IEEE80211_VHT_CAP_MAX_MPDU_MASK                         0x00000003
2259 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ                0x00000004
2260 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ       0x00000008
2261 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK                  0x0000000C
2262 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_SHIFT                 2
2263 #define IEEE80211_VHT_CAP_RXLDPC                                0x00000010
2264 #define IEEE80211_VHT_CAP_SHORT_GI_80                           0x00000020
2265 #define IEEE80211_VHT_CAP_SHORT_GI_160                          0x00000040
2266 #define IEEE80211_VHT_CAP_TXSTBC                                0x00000080
2267 #define IEEE80211_VHT_CAP_RXSTBC_1                              0x00000100
2268 #define IEEE80211_VHT_CAP_RXSTBC_2                              0x00000200
2269 #define IEEE80211_VHT_CAP_RXSTBC_3                              0x00000300
2270 #define IEEE80211_VHT_CAP_RXSTBC_4                              0x00000400
2271 #define IEEE80211_VHT_CAP_RXSTBC_MASK                           0x00000700
2272 #define IEEE80211_VHT_CAP_RXSTBC_SHIFT                          8
2273 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE                 0x00000800
2274 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE                 0x00001000
2275 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13
2276 #define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK                   \
2277                 (7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)
2278 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT             16
2279 #define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK              \
2280                 (7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)
2281 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE                 0x00080000
2282 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE                 0x00100000
2283 #define IEEE80211_VHT_CAP_VHT_TXOP_PS                           0x00200000
2284 #define IEEE80211_VHT_CAP_HTC_VHT                               0x00400000
2285 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT      23
2286 #define IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK       \
2287                 (7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
2288 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB     0x08000000
2289 #define IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB       0x0c000000
2290 #define IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN                    0x10000000
2291 #define IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN                    0x20000000
2292 #define IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT                      30
2293 #define IEEE80211_VHT_CAP_EXT_NSS_BW_MASK                       0xc0000000
2294
2295 /**
2296  * ieee80211_get_vht_max_nss - return max NSS for a given bandwidth/MCS
2297  * @cap: VHT capabilities of the peer
2298  * @bw: bandwidth to use
2299  * @mcs: MCS index to use
2300  * @ext_nss_bw_capable: indicates whether or not the local transmitter
2301  *      (rate scaling algorithm) can deal with the new logic
2302  *      (dot11VHTExtendedNSSBWCapable)
2303  * @max_vht_nss: current maximum NSS as advertised by the STA in
2304  *      operating mode notification, can be 0 in which case the
2305  *      capability data will be used to derive this (from MCS support)
2306  *
2307  * Due to the VHT Extended NSS Bandwidth Support, the maximum NSS can
2308  * vary for a given BW/MCS. This function parses the data.
2309  *
2310  * Note: This function is exported by cfg80211.
2311  */
2312 int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
2313                               enum ieee80211_vht_chanwidth bw,
2314                               int mcs, bool ext_nss_bw_capable,
2315                               unsigned int max_vht_nss);
2316
2317 /**
2318  * enum ieee80211_ap_reg_power - regulatory power for a Access Point
2319  *
2320  * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
2321  * @IEEE80211_REG_LPI_AP: Indoor Access Point
2322  * @IEEE80211_REG_SP_AP: Standard power Access Point
2323  * @IEEE80211_REG_VLP_AP: Very low power Access Point
2324  * @IEEE80211_REG_AP_POWER_AFTER_LAST: internal
2325  * @IEEE80211_REG_AP_POWER_MAX: maximum value
2326  */
2327 enum ieee80211_ap_reg_power {
2328         IEEE80211_REG_UNSET_AP,
2329         IEEE80211_REG_LPI_AP,
2330         IEEE80211_REG_SP_AP,
2331         IEEE80211_REG_VLP_AP,
2332         IEEE80211_REG_AP_POWER_AFTER_LAST,
2333         IEEE80211_REG_AP_POWER_MAX =
2334                 IEEE80211_REG_AP_POWER_AFTER_LAST - 1,
2335 };
2336
2337 /**
2338  * enum ieee80211_client_reg_power - regulatory power for a client
2339  *
2340  * @IEEE80211_REG_UNSET_CLIENT: Client has no regulatory power mode
2341  * @IEEE80211_REG_DEFAULT_CLIENT: Default Client
2342  * @IEEE80211_REG_SUBORDINATE_CLIENT: Subordinate Client
2343  * @IEEE80211_REG_CLIENT_POWER_AFTER_LAST: internal
2344  * @IEEE80211_REG_CLIENT_POWER_MAX: maximum value
2345  */
2346 enum ieee80211_client_reg_power {
2347         IEEE80211_REG_UNSET_CLIENT,
2348         IEEE80211_REG_DEFAULT_CLIENT,
2349         IEEE80211_REG_SUBORDINATE_CLIENT,
2350         IEEE80211_REG_CLIENT_POWER_AFTER_LAST,
2351         IEEE80211_REG_CLIENT_POWER_MAX =
2352                 IEEE80211_REG_CLIENT_POWER_AFTER_LAST - 1,
2353 };
2354
2355 /* 802.11ax HE MAC capabilities */
2356 #define IEEE80211_HE_MAC_CAP0_HTC_HE                            0x01
2357 #define IEEE80211_HE_MAC_CAP0_TWT_REQ                           0x02
2358 #define IEEE80211_HE_MAC_CAP0_TWT_RES                           0x04
2359 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_NOT_SUPP             0x00
2360 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_1              0x08
2361 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_2              0x10
2362 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_LEVEL_3              0x18
2363 #define IEEE80211_HE_MAC_CAP0_DYNAMIC_FRAG_MASK                 0x18
2364 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_1               0x00
2365 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_2               0x20
2366 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_4               0x40
2367 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_8               0x60
2368 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_16              0x80
2369 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_32              0xa0
2370 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_64              0xc0
2371 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_UNLIMITED       0xe0
2372 #define IEEE80211_HE_MAC_CAP0_MAX_NUM_FRAG_MSDU_MASK            0xe0
2373
2374 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_UNLIMITED           0x00
2375 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_128                 0x01
2376 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_256                 0x02
2377 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_512                 0x03
2378 #define IEEE80211_HE_MAC_CAP1_MIN_FRAG_SIZE_MASK                0x03
2379 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_0US                0x00
2380 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_8US                0x04
2381 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US               0x08
2382 #define IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_MASK               0x0c
2383 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_1            0x00
2384 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_2            0x10
2385 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_3            0x20
2386 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_4            0x30
2387 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_5            0x40
2388 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_6            0x50
2389 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_7            0x60
2390 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8            0x70
2391 #define IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_MASK         0x70
2392
2393 /* Link adaptation is split between byte HE_MAC_CAP1 and
2394  * HE_MAC_CAP2. It should be set only if IEEE80211_HE_MAC_CAP0_HTC_HE
2395  * in which case the following values apply:
2396  * 0 = No feedback.
2397  * 1 = reserved.
2398  * 2 = Unsolicited feedback.
2399  * 3 = both
2400  */
2401 #define IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION                   0x80
2402
2403 #define IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION                   0x01
2404 #define IEEE80211_HE_MAC_CAP2_ALL_ACK                           0x02
2405 #define IEEE80211_HE_MAC_CAP2_TRS                               0x04
2406 #define IEEE80211_HE_MAC_CAP2_BSR                               0x08
2407 #define IEEE80211_HE_MAC_CAP2_BCAST_TWT                         0x10
2408 #define IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP                   0x20
2409 #define IEEE80211_HE_MAC_CAP2_MU_CASCADING                      0x40
2410 #define IEEE80211_HE_MAC_CAP2_ACK_EN                            0x80
2411
2412 #define IEEE80211_HE_MAC_CAP3_OMI_CONTROL                       0x02
2413 #define IEEE80211_HE_MAC_CAP3_OFDMA_RA                          0x04
2414
2415 /* The maximum length of an A-MDPU is defined by the combination of the Maximum
2416  * A-MDPU Length Exponent field in the HT capabilities, VHT capabilities and the
2417  * same field in the HE capabilities.
2418  */
2419 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_0           0x00
2420 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_1           0x08
2421 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_2           0x10
2422 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3           0x18
2423 #define IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK            0x18
2424 #define IEEE80211_HE_MAC_CAP3_AMSDU_FRAG                        0x20
2425 #define IEEE80211_HE_MAC_CAP3_FLEX_TWT_SCHED                    0x40
2426 #define IEEE80211_HE_MAC_CAP3_RX_CTRL_FRAME_TO_MULTIBSS         0x80
2427
2428 #define IEEE80211_HE_MAC_CAP4_BSRP_BQRP_A_MPDU_AGG              0x01
2429 #define IEEE80211_HE_MAC_CAP4_QTP                               0x02
2430 #define IEEE80211_HE_MAC_CAP4_BQR                               0x04
2431 #define IEEE80211_HE_MAC_CAP4_PSR_RESP                          0x08
2432 #define IEEE80211_HE_MAC_CAP4_NDP_FB_REP                        0x10
2433 #define IEEE80211_HE_MAC_CAP4_OPS                               0x20
2434 #define IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU                    0x40
2435 /* Multi TID agg TX is split between byte #4 and #5
2436  * The value is a combination of B39,B40,B41
2437  */
2438 #define IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39          0x80
2439
2440 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40          0x01
2441 #define IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41          0x02
2442 #define IEEE80211_HE_MAC_CAP5_SUBCHAN_SELECTIVE_TRANSMISSION    0x04
2443 #define IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU                  0x08
2444 #define IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX         0x10
2445 #define IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS                  0x20
2446 #define IEEE80211_HE_MAC_CAP5_PUNCTURED_SOUNDING                0x40
2447 #define IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX              0x80
2448
2449 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR       20
2450 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR        16
2451 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR      13
2452
2453 /* 802.11ax HE PHY capabilities */
2454 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G             0x02
2455 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G       0x04
2456 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G            0x08
2457 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G      0x10
2458 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK_ALL                0x1e
2459
2460 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G        0x20
2461 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G        0x40
2462 #define IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_MASK                    0xfe
2463
2464 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_20MHZ  0x01
2465 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_80MHZ_ONLY_SECOND_40MHZ  0x02
2466 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_20MHZ 0x04
2467 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_160MHZ_ONLY_SECOND_40MHZ 0x08
2468 #define IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK                     0x0f
2469 #define IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A                            0x10
2470 #define IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD                    0x20
2471 #define IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US          0x40
2472 /* Midamble RX/TX Max NSTS is split between byte #2 and byte #3 */
2473 #define IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS                   0x80
2474
2475 #define IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS                   0x01
2476 #define IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US                      0x02
2477 #define IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ                       0x04
2478 #define IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ                       0x08
2479 #define IEEE80211_HE_PHY_CAP2_DOPPLER_TX                                0x10
2480 #define IEEE80211_HE_PHY_CAP2_DOPPLER_RX                                0x20
2481
2482 /* Note that the meaning of UL MU below is different between an AP and a non-AP
2483  * sta, where in the AP case it indicates support for Rx and in the non-AP sta
2484  * case it indicates support for Tx.
2485  */
2486 #define IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO                        0x40
2487 #define IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO                     0x80
2488
2489 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM                   0x00
2490 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_BPSK                     0x01
2491 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK                     0x02
2492 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_16_QAM                   0x03
2493 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK                     0x03
2494 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1                          0x00
2495 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_2                          0x04
2496 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM                   0x00
2497 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_BPSK                     0x08
2498 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK                     0x10
2499 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_16_QAM                   0x18
2500 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK                     0x18
2501 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1                          0x00
2502 #define IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_2                          0x20
2503 #define IEEE80211_HE_PHY_CAP3_RX_PARTIAL_BW_SU_IN_20MHZ_MU              0x40
2504 #define IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER                             0x80
2505
2506 #define IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE                             0x01
2507 #define IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER                             0x02
2508
2509 /* Minimal allowed value of Max STS under 80MHz is 3 */
2510 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4          0x0c
2511 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_5          0x10
2512 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_6          0x14
2513 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_7          0x18
2514 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8          0x1c
2515 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_MASK       0x1c
2516
2517 /* Minimal allowed value of Max STS above 80MHz is 3 */
2518 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4          0x60
2519 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_5          0x80
2520 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_6          0xa0
2521 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_7          0xc0
2522 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8          0xe0
2523 #define IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_MASK       0xe0
2524
2525 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_1      0x00
2526 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2      0x01
2527 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_3      0x02
2528 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_4      0x03
2529 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_5      0x04
2530 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_6      0x05
2531 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_7      0x06
2532 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_8      0x07
2533 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK   0x07
2534
2535 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_1      0x00
2536 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2      0x08
2537 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_3      0x10
2538 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_4      0x18
2539 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_5      0x20
2540 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_6      0x28
2541 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_7      0x30
2542 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_8      0x38
2543 #define IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK   0x38
2544
2545 #define IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK                          0x40
2546 #define IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK                          0x80
2547
2548 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU                       0x01
2549 #define IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU                       0x02
2550 #define IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMING_FB                    0x04
2551 #define IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMING_PARTIAL_BW_FB         0x08
2552 #define IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB                               0x10
2553 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE                      0x20
2554 #define IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO               0x40
2555 #define IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT                     0x80
2556
2557 #define IEEE80211_HE_PHY_CAP7_PSR_BASED_SR                              0x01
2558 #define IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP                   0x02
2559 #define IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI          0x04
2560 #define IEEE80211_HE_PHY_CAP7_MAX_NC_1                                  0x08
2561 #define IEEE80211_HE_PHY_CAP7_MAX_NC_2                                  0x10
2562 #define IEEE80211_HE_PHY_CAP7_MAX_NC_3                                  0x18
2563 #define IEEE80211_HE_PHY_CAP7_MAX_NC_4                                  0x20
2564 #define IEEE80211_HE_PHY_CAP7_MAX_NC_5                                  0x28
2565 #define IEEE80211_HE_PHY_CAP7_MAX_NC_6                                  0x30
2566 #define IEEE80211_HE_PHY_CAP7_MAX_NC_7                                  0x38
2567 #define IEEE80211_HE_PHY_CAP7_MAX_NC_MASK                               0x38
2568 #define IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ                       0x40
2569 #define IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ                       0x80
2570
2571 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI          0x01
2572 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G              0x02
2573 #define IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU                   0x04
2574 #define IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU                   0x08
2575 #define IEEE80211_HE_PHY_CAP8_HE_ER_SU_1XLTF_AND_08_US_GI               0x10
2576 #define IEEE80211_HE_PHY_CAP8_MIDAMBLE_RX_TX_2X_AND_1XLTF               0x20
2577 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_242                            0x00
2578 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484                            0x40
2579 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_996                            0x80
2580 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996                          0xc0
2581 #define IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_MASK                           0xc0
2582
2583 #define IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM              0x01
2584 #define IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK                0x02
2585 #define IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU         0x04
2586 #define IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU         0x08
2587 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB     0x10
2588 #define IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB 0x20
2589 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US                   0x0
2590 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US                   0x1
2591 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US                  0x2
2592 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED              0x3
2593 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_POS                   6
2594 #define IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK                  0xc0
2595
2596 #define IEEE80211_HE_PHY_CAP10_HE_MU_M1RU_MAX_LTF                       0x01
2597
2598 /* 802.11ax HE TX/RX MCS NSS Support  */
2599 #define IEEE80211_TX_RX_MCS_NSS_SUPP_HIGHEST_MCS_POS                    (3)
2600 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_POS                      (6)
2601 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_POS                      (11)
2602 #define IEEE80211_TX_RX_MCS_NSS_SUPP_TX_BITMAP_MASK                     0x07c0
2603 #define IEEE80211_TX_RX_MCS_NSS_SUPP_RX_BITMAP_MASK                     0xf800
2604
2605 /* TX/RX HE MCS Support field Highest MCS subfield encoding */
2606 enum ieee80211_he_highest_mcs_supported_subfield_enc {
2607         HIGHEST_MCS_SUPPORTED_MCS7 = 0,
2608         HIGHEST_MCS_SUPPORTED_MCS8,
2609         HIGHEST_MCS_SUPPORTED_MCS9,
2610         HIGHEST_MCS_SUPPORTED_MCS10,
2611         HIGHEST_MCS_SUPPORTED_MCS11,
2612 };
2613
2614 /* Calculate 802.11ax HE capabilities IE Tx/Rx HE MCS NSS Support Field size */
2615 static inline u8
2616 ieee80211_he_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap)
2617 {
2618         u8 count = 4;
2619
2620         if (he_cap->phy_cap_info[0] &
2621             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
2622                 count += 4;
2623
2624         if (he_cap->phy_cap_info[0] &
2625             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G)
2626                 count += 4;
2627
2628         return count;
2629 }
2630
2631 /* 802.11ax HE PPE Thresholds */
2632 #define IEEE80211_PPE_THRES_NSS_SUPPORT_2NSS                    (1)
2633 #define IEEE80211_PPE_THRES_NSS_POS                             (0)
2634 #define IEEE80211_PPE_THRES_NSS_MASK                            (7)
2635 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_2x966_AND_966_RU   \
2636         (BIT(5) | BIT(6))
2637 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK               0x78
2638 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS                (3)
2639 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE                      (3)
2640 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE                 (7)
2641
2642 /*
2643  * Calculate 802.11ax HE capabilities IE PPE field size
2644  * Input: Header byte of ppe_thres (first byte), and HE capa IE's PHY cap u8*
2645  */
2646 static inline u8
2647 ieee80211_he_ppe_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
2648 {
2649         u8 n;
2650
2651         if ((phy_cap_info[6] &
2652              IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
2653                 return 0;
2654
2655         n = hweight8(ppe_thres_hdr &
2656                      IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2657         n *= (1 + ((ppe_thres_hdr & IEEE80211_PPE_THRES_NSS_MASK) >>
2658                    IEEE80211_PPE_THRES_NSS_POS));
2659
2660         /*
2661          * Each pair is 6 bits, and we need to add the 7 "header" bits to the
2662          * total size.
2663          */
2664         n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
2665         n = DIV_ROUND_UP(n, 8);
2666
2667         return n;
2668 }
2669
2670 static inline bool ieee80211_he_capa_size_ok(const u8 *data, u8 len)
2671 {
2672         const struct ieee80211_he_cap_elem *he_cap_ie_elem = (const void *)data;
2673         u8 needed = sizeof(*he_cap_ie_elem);
2674
2675         if (len < needed)
2676                 return false;
2677
2678         needed += ieee80211_he_mcs_nss_size(he_cap_ie_elem);
2679         if (len < needed)
2680                 return false;
2681
2682         if (he_cap_ie_elem->phy_cap_info[6] &
2683                         IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2684                 if (len < needed + 1)
2685                         return false;
2686                 needed += ieee80211_he_ppe_size(data[needed],
2687                                                 he_cap_ie_elem->phy_cap_info);
2688         }
2689
2690         return len >= needed;
2691 }
2692
2693 /* HE Operation defines */
2694 #define IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK            0x00000007
2695 #define IEEE80211_HE_OPERATION_TWT_REQUIRED                     0x00000008
2696 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK               0x00003ff0
2697 #define IEEE80211_HE_OPERATION_RTS_THRESHOLD_OFFSET             4
2698 #define IEEE80211_HE_OPERATION_VHT_OPER_INFO                    0x00004000
2699 #define IEEE80211_HE_OPERATION_CO_HOSTED_BSS                    0x00008000
2700 #define IEEE80211_HE_OPERATION_ER_SU_DISABLE                    0x00010000
2701 #define IEEE80211_HE_OPERATION_6GHZ_OP_INFO                     0x00020000
2702 #define IEEE80211_HE_OPERATION_BSS_COLOR_MASK                   0x3f000000
2703 #define IEEE80211_HE_OPERATION_BSS_COLOR_OFFSET                 24
2704 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR                0x40000000
2705 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED               0x80000000
2706
2707 #define IEEE80211_6GHZ_CTRL_REG_LPI_AP  0
2708 #define IEEE80211_6GHZ_CTRL_REG_SP_AP   1
2709
2710 /**
2711  * struct ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
2712  * @primary: primary channel
2713  * @control: control flags
2714  * @ccfs0: channel center frequency segment 0
2715  * @ccfs1: channel center frequency segment 1
2716  * @minrate: minimum rate (in 1 Mbps units)
2717  */
2718 struct ieee80211_he_6ghz_oper {
2719         u8 primary;
2720 #define IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH   0x3
2721 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ     0
2722 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ     1
2723 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ     2
2724 #define         IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ    3
2725 #define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON  0x4
2726 #define IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO    0x38
2727         u8 control;
2728         u8 ccfs0;
2729         u8 ccfs1;
2730         u8 minrate;
2731 } __packed;
2732
2733 /*
2734  * In "9.4.2.161 Transmit Power Envelope element" of "IEEE Std 802.11ax-2021",
2735  * it show four types in "Table 9-275a-Maximum Transmit Power Interpretation
2736  * subfield encoding", and two category for each type in "Table E-12-Regulatory
2737  * Info subfield encoding in the United States".
2738  * So it it totally max 8 Transmit Power Envelope element.
2739  */
2740 #define IEEE80211_TPE_MAX_IE_COUNT      8
2741 /*
2742  * In "Table 9-277—Meaning of Maximum Transmit Power Count subfield"
2743  * of "IEEE Std 802.11ax™‐2021", the max power level is 8.
2744  */
2745 #define IEEE80211_MAX_NUM_PWR_LEVEL     8
2746
2747 #define IEEE80211_TPE_MAX_POWER_COUNT   8
2748
2749 /* transmit power interpretation type of transmit power envelope element */
2750 enum ieee80211_tx_power_intrpt_type {
2751         IEEE80211_TPE_LOCAL_EIRP,
2752         IEEE80211_TPE_LOCAL_EIRP_PSD,
2753         IEEE80211_TPE_REG_CLIENT_EIRP,
2754         IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
2755 };
2756
2757 /**
2758  * struct ieee80211_tx_pwr_env - Transmit Power Envelope
2759  * @tx_power_info: Transmit Power Information field
2760  * @tx_power: Maximum Transmit Power field
2761  *
2762  * This structure represents the payload of the "Transmit Power
2763  * Envelope element" as described in IEEE Std 802.11ax-2021 section
2764  * 9.4.2.161
2765  */
2766 struct ieee80211_tx_pwr_env {
2767         u8 tx_power_info;
2768         s8 tx_power[IEEE80211_TPE_MAX_POWER_COUNT];
2769 } __packed;
2770
2771 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x7
2772 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
2773 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xC0
2774
2775 /*
2776  * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
2777  * @he_oper_ie: byte data of the He Operations IE, stating from the byte
2778  *      after the ext ID byte. It is assumed that he_oper_ie has at least
2779  *      sizeof(struct ieee80211_he_operation) bytes, the caller must have
2780  *      validated this.
2781  * @return the actual size of the IE data (not including header), or 0 on error
2782  */
2783 static inline u8
2784 ieee80211_he_oper_size(const u8 *he_oper_ie)
2785 {
2786         const struct ieee80211_he_operation *he_oper = (const void *)he_oper_ie;
2787         u8 oper_len = sizeof(struct ieee80211_he_operation);
2788         u32 he_oper_params;
2789
2790         /* Make sure the input is not NULL */
2791         if (!he_oper_ie)
2792                 return 0;
2793
2794         /* Calc required length */
2795         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2796         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2797                 oper_len += 3;
2798         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2799                 oper_len++;
2800         if (he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO)
2801                 oper_len += sizeof(struct ieee80211_he_6ghz_oper);
2802
2803         /* Add the first byte (extension ID) to the total length */
2804         oper_len++;
2805
2806         return oper_len;
2807 }
2808
2809 /**
2810  * ieee80211_he_6ghz_oper - obtain 6 GHz operation field
2811  * @he_oper: HE operation element (must be pre-validated for size)
2812  *      but may be %NULL
2813  *
2814  * Return: a pointer to the 6 GHz operation field, or %NULL
2815  */
2816 static inline const struct ieee80211_he_6ghz_oper *
2817 ieee80211_he_6ghz_oper(const struct ieee80211_he_operation *he_oper)
2818 {
2819         const u8 *ret = (const void *)&he_oper->optional;
2820         u32 he_oper_params;
2821
2822         if (!he_oper)
2823                 return NULL;
2824
2825         he_oper_params = le32_to_cpu(he_oper->he_oper_params);
2826
2827         if (!(he_oper_params & IEEE80211_HE_OPERATION_6GHZ_OP_INFO))
2828                 return NULL;
2829         if (he_oper_params & IEEE80211_HE_OPERATION_VHT_OPER_INFO)
2830                 ret += 3;
2831         if (he_oper_params & IEEE80211_HE_OPERATION_CO_HOSTED_BSS)
2832                 ret++;
2833
2834         return (const void *)ret;
2835 }
2836
2837 /* HE Spatial Reuse defines */
2838 #define IEEE80211_HE_SPR_PSR_DISALLOWED                         BIT(0)
2839 #define IEEE80211_HE_SPR_NON_SRG_OBSS_PD_SR_DISALLOWED          BIT(1)
2840 #define IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT                 BIT(2)
2841 #define IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT                BIT(3)
2842 #define IEEE80211_HE_SPR_HESIGA_SR_VAL15_ALLOWED                BIT(4)
2843
2844 /*
2845  * ieee80211_he_spr_size - calculate 802.11ax HE Spatial Reuse IE size
2846  * @he_spr_ie: byte data of the He Spatial Reuse IE, stating from the byte
2847  *      after the ext ID byte. It is assumed that he_spr_ie has at least
2848  *      sizeof(struct ieee80211_he_spr) bytes, the caller must have validated
2849  *      this
2850  * @return the actual size of the IE data (not including header), or 0 on error
2851  */
2852 static inline u8
2853 ieee80211_he_spr_size(const u8 *he_spr_ie)
2854 {
2855         const struct ieee80211_he_spr *he_spr = (const void *)he_spr_ie;
2856         u8 spr_len = sizeof(struct ieee80211_he_spr);
2857         u8 he_spr_params;
2858
2859         /* Make sure the input is not NULL */
2860         if (!he_spr_ie)
2861                 return 0;
2862
2863         /* Calc required length */
2864         he_spr_params = he_spr->he_sr_control;
2865         if (he_spr_params & IEEE80211_HE_SPR_NON_SRG_OFFSET_PRESENT)
2866                 spr_len++;
2867         if (he_spr_params & IEEE80211_HE_SPR_SRG_INFORMATION_PRESENT)
2868                 spr_len += 18;
2869
2870         /* Add the first byte (extension ID) to the total length */
2871         spr_len++;
2872
2873         return spr_len;
2874 }
2875
2876 /* S1G Capabilities Information field */
2877 #define IEEE80211_S1G_CAPABILITY_LEN    15
2878
2879 #define S1G_CAP0_S1G_LONG       BIT(0)
2880 #define S1G_CAP0_SGI_1MHZ       BIT(1)
2881 #define S1G_CAP0_SGI_2MHZ       BIT(2)
2882 #define S1G_CAP0_SGI_4MHZ       BIT(3)
2883 #define S1G_CAP0_SGI_8MHZ       BIT(4)
2884 #define S1G_CAP0_SGI_16MHZ      BIT(5)
2885 #define S1G_CAP0_SUPP_CH_WIDTH  GENMASK(7, 6)
2886
2887 #define S1G_SUPP_CH_WIDTH_2     0
2888 #define S1G_SUPP_CH_WIDTH_4     1
2889 #define S1G_SUPP_CH_WIDTH_8     2
2890 #define S1G_SUPP_CH_WIDTH_16    3
2891 #define S1G_SUPP_CH_WIDTH_MAX(cap) ((1 << FIELD_GET(S1G_CAP0_SUPP_CH_WIDTH, \
2892                                                     cap[0])) << 1)
2893
2894 #define S1G_CAP1_RX_LDPC        BIT(0)
2895 #define S1G_CAP1_TX_STBC        BIT(1)
2896 #define S1G_CAP1_RX_STBC        BIT(2)
2897 #define S1G_CAP1_SU_BFER        BIT(3)
2898 #define S1G_CAP1_SU_BFEE        BIT(4)
2899 #define S1G_CAP1_BFEE_STS       GENMASK(7, 5)
2900
2901 #define S1G_CAP2_SOUNDING_DIMENSIONS    GENMASK(2, 0)
2902 #define S1G_CAP2_MU_BFER                BIT(3)
2903 #define S1G_CAP2_MU_BFEE                BIT(4)
2904 #define S1G_CAP2_PLUS_HTC_VHT           BIT(5)
2905 #define S1G_CAP2_TRAVELING_PILOT        GENMASK(7, 6)
2906
2907 #define S1G_CAP3_RD_RESPONDER           BIT(0)
2908 #define S1G_CAP3_HT_DELAYED_BA          BIT(1)
2909 #define S1G_CAP3_MAX_MPDU_LEN           BIT(2)
2910 #define S1G_CAP3_MAX_AMPDU_LEN_EXP      GENMASK(4, 3)
2911 #define S1G_CAP3_MIN_MPDU_START         GENMASK(7, 5)
2912
2913 #define S1G_CAP4_UPLINK_SYNC    BIT(0)
2914 #define S1G_CAP4_DYNAMIC_AID    BIT(1)
2915 #define S1G_CAP4_BAT            BIT(2)
2916 #define S1G_CAP4_TIME_ADE       BIT(3)
2917 #define S1G_CAP4_NON_TIM        BIT(4)
2918 #define S1G_CAP4_GROUP_AID      BIT(5)
2919 #define S1G_CAP4_STA_TYPE       GENMASK(7, 6)
2920
2921 #define S1G_CAP5_CENT_AUTH_CONTROL      BIT(0)
2922 #define S1G_CAP5_DIST_AUTH_CONTROL      BIT(1)
2923 #define S1G_CAP5_AMSDU                  BIT(2)
2924 #define S1G_CAP5_AMPDU                  BIT(3)
2925 #define S1G_CAP5_ASYMMETRIC_BA          BIT(4)
2926 #define S1G_CAP5_FLOW_CONTROL           BIT(5)
2927 #define S1G_CAP5_SECTORIZED_BEAM        GENMASK(7, 6)
2928
2929 #define S1G_CAP6_OBSS_MITIGATION        BIT(0)
2930 #define S1G_CAP6_FRAGMENT_BA            BIT(1)
2931 #define S1G_CAP6_NDP_PS_POLL            BIT(2)
2932 #define S1G_CAP6_RAW_OPERATION          BIT(3)
2933 #define S1G_CAP6_PAGE_SLICING           BIT(4)
2934 #define S1G_CAP6_TXOP_SHARING_IMP_ACK   BIT(5)
2935 #define S1G_CAP6_VHT_LINK_ADAPT         GENMASK(7, 6)
2936
2937 #define S1G_CAP7_TACK_AS_PS_POLL                BIT(0)
2938 #define S1G_CAP7_DUP_1MHZ                       BIT(1)
2939 #define S1G_CAP7_MCS_NEGOTIATION                BIT(2)
2940 #define S1G_CAP7_1MHZ_CTL_RESPONSE_PREAMBLE     BIT(3)
2941 #define S1G_CAP7_NDP_BFING_REPORT_POLL          BIT(4)
2942 #define S1G_CAP7_UNSOLICITED_DYN_AID            BIT(5)
2943 #define S1G_CAP7_SECTOR_TRAINING_OPERATION      BIT(6)
2944 #define S1G_CAP7_TEMP_PS_MODE_SWITCH            BIT(7)
2945
2946 #define S1G_CAP8_TWT_GROUPING   BIT(0)
2947 #define S1G_CAP8_BDT            BIT(1)
2948 #define S1G_CAP8_COLOR          GENMASK(4, 2)
2949 #define S1G_CAP8_TWT_REQUEST    BIT(5)
2950 #define S1G_CAP8_TWT_RESPOND    BIT(6)
2951 #define S1G_CAP8_PV1_FRAME      BIT(7)
2952
2953 #define S1G_CAP9_LINK_ADAPT_PER_CONTROL_RESPONSE BIT(0)
2954
2955 #define S1G_OPER_CH_WIDTH_PRIMARY_1MHZ  BIT(0)
2956 #define S1G_OPER_CH_WIDTH_OPER          GENMASK(4, 1)
2957
2958 /* EHT MAC capabilities as defined in P802.11be_D2.0 section 9.4.2.313.2 */
2959 #define IEEE80211_EHT_MAC_CAP0_EPCS_PRIO_ACCESS                 0x01
2960 #define IEEE80211_EHT_MAC_CAP0_OM_CONTROL                       0x02
2961 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE1          0x04
2962 #define IEEE80211_EHT_MAC_CAP0_TRIG_TXOP_SHARING_MODE2          0x08
2963 #define IEEE80211_EHT_MAC_CAP0_RESTRICTED_TWT                   0x10
2964 #define IEEE80211_EHT_MAC_CAP0_SCS_TRAFFIC_DESC                 0x20
2965 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_MASK                0xc0
2966 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_3895                0
2967 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_7991                1
2968 #define IEEE80211_EHT_MAC_CAP0_MAX_MPDU_LEN_11454               2
2969
2970 #define IEEE80211_EHT_MAC_CAP1_MAX_AMPDU_LEN_MASK               0x01
2971
2972 /* EHT PHY capabilities as defined in P802.11be_D2.0 section 9.4.2.313.3 */
2973 #define IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ                   0x02
2974 #define IEEE80211_EHT_PHY_CAP0_242_TONE_RU_GT20MHZ              0x04
2975 #define IEEE80211_EHT_PHY_CAP0_NDP_4_EHT_LFT_32_GI              0x08
2976 #define IEEE80211_EHT_PHY_CAP0_PARTIAL_BW_UL_MU_MIMO            0x10
2977 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER                    0x20
2978 #define IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE                    0x40
2979
2980 /* EHT beamformee number of spatial streams <= 80MHz is split */
2981 #define IEEE80211_EHT_PHY_CAP0_BEAMFORMEE_SS_80MHZ_MASK         0x80
2982 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_80MHZ_MASK         0x03
2983
2984 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_160MHZ_MASK        0x1c
2985 #define IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK        0xe0
2986
2987 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_80MHZ_MASK          0x07
2988 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_160MHZ_MASK         0x38
2989
2990 /* EHT number of sounding dimensions for 320MHz is split */
2991 #define IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK         0xc0
2992 #define IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK         0x01
2993 #define IEEE80211_EHT_PHY_CAP3_NG_16_SU_FEEDBACK                0x02
2994 #define IEEE80211_EHT_PHY_CAP3_NG_16_MU_FEEDBACK                0x04
2995 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_4_2_SU_FDBK             0x08
2996 #define IEEE80211_EHT_PHY_CAP3_CODEBOOK_7_5_MU_FDBK             0x10
2997 #define IEEE80211_EHT_PHY_CAP3_TRIG_SU_BF_FDBK                  0x20
2998 #define IEEE80211_EHT_PHY_CAP3_TRIG_MU_BF_PART_BW_FDBK          0x40
2999 #define IEEE80211_EHT_PHY_CAP3_TRIG_CQI_FDBK                    0x80
3000
3001 #define IEEE80211_EHT_PHY_CAP4_PART_BW_DL_MU_MIMO               0x01
3002 #define IEEE80211_EHT_PHY_CAP4_PSR_SR_SUPP                      0x02
3003 #define IEEE80211_EHT_PHY_CAP4_POWER_BOOST_FACT_SUPP            0x04
3004 #define IEEE80211_EHT_PHY_CAP4_EHT_MU_PPDU_4_EHT_LTF_08_GI      0x08
3005 #define IEEE80211_EHT_PHY_CAP4_MAX_NC_MASK                      0xf0
3006
3007 #define IEEE80211_EHT_PHY_CAP5_NON_TRIG_CQI_FEEDBACK            0x01
3008 #define IEEE80211_EHT_PHY_CAP5_TX_LESS_242_TONE_RU_SUPP         0x02
3009 #define IEEE80211_EHT_PHY_CAP5_RX_LESS_242_TONE_RU_SUPP         0x04
3010 #define IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT            0x08
3011 #define IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK      0x30
3012 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US     0
3013 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US     1
3014 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US    2
3015 #define   IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US    3
3016
3017 /* Maximum number of supported EHT LTF is split */
3018 #define IEEE80211_EHT_PHY_CAP5_MAX_NUM_SUPP_EHT_LTF_MASK        0xc0
3019 #define IEEE80211_EHT_PHY_CAP5_SUPP_EXTRA_EHT_LTF               0x40
3020 #define IEEE80211_EHT_PHY_CAP6_MAX_NUM_SUPP_EHT_LTF_MASK        0x07
3021
3022 #define IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_MASK                  0x78
3023 #define IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP                0x80
3024
3025 #define IEEE80211_EHT_PHY_CAP7_20MHZ_STA_RX_NDP_WIDER_BW        0x01
3026 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ       0x02
3027 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ      0x04
3028 #define IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ      0x08
3029 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ              0x10
3030 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ             0x20
3031 #define IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ             0x40
3032 #define IEEE80211_EHT_PHY_CAP7_TB_SOUNDING_FDBK_RATE_LIMIT      0x80
3033
3034 #define IEEE80211_EHT_PHY_CAP8_RX_1024QAM_WIDER_BW_DL_OFDMA     0x01
3035 #define IEEE80211_EHT_PHY_CAP8_RX_4096QAM_WIDER_BW_DL_OFDMA     0x02
3036
3037 /*
3038  * EHT operation channel width as defined in P802.11be_D2.0 section 9.4.2.311
3039  */
3040 #define IEEE80211_EHT_OPER_CHAN_WIDTH           0x7
3041 #define IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ     0
3042 #define IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ     1
3043 #define IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ     2
3044 #define IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ    3
3045 #define IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ    4
3046
3047 /* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
3048 static inline u8
3049 ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
3050                            const struct ieee80211_eht_cap_elem_fixed *eht_cap,
3051                            bool from_ap)
3052 {
3053         u8 count = 0;
3054
3055         /* on 2.4 GHz, if it supports 40 MHz, the result is 3 */
3056         if (he_cap->phy_cap_info[0] &
3057             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)
3058                 return 3;
3059
3060         /* on 2.4 GHz, these three bits are reserved, so should be 0 */
3061         if (he_cap->phy_cap_info[0] &
3062             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G)
3063                 count += 3;
3064
3065         if (he_cap->phy_cap_info[0] &
3066             IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G)
3067                 count += 3;
3068
3069         if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
3070                 count += 3;
3071
3072         if (count)
3073                 return count;
3074
3075         return from_ap ? 3 : 4;
3076 }
3077
3078 /* 802.11be EHT PPE Thresholds */
3079 #define IEEE80211_EHT_PPE_THRES_NSS_POS                 0
3080 #define IEEE80211_EHT_PPE_THRES_NSS_MASK                0xf
3081 #define IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK   0x1f0
3082 #define IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE          3
3083 #define IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE        9
3084
3085 /*
3086  * Calculate 802.11be EHT capabilities IE EHT field size
3087  */
3088 static inline u8
3089 ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
3090 {
3091         u32 n;
3092
3093         if (!(phy_cap_info[5] &
3094               IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT))
3095                 return 0;
3096
3097         n = hweight16(ppe_thres_hdr &
3098                       IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
3099         n *= 1 + u16_get_bits(ppe_thres_hdr, IEEE80211_EHT_PPE_THRES_NSS_MASK);
3100
3101         /*
3102          * Each pair is 6 bits, and we need to add the 9 "header" bits to the
3103          * total size.
3104          */
3105         n = n * IEEE80211_EHT_PPE_THRES_INFO_PPET_SIZE * 2 +
3106             IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
3107         return DIV_ROUND_UP(n, 8);
3108 }
3109
3110 static inline bool
3111 ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
3112                            bool from_ap)
3113 {
3114         const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
3115         u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
3116
3117         if (len < needed || !he_capa)
3118                 return false;
3119
3120         needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
3121                                              (const void *)data,
3122                                              from_ap);
3123         if (len < needed)
3124                 return false;
3125
3126         if (elem->phy_cap_info[5] &
3127                         IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
3128                 u16 ppe_thres_hdr;
3129
3130                 if (len < needed + sizeof(ppe_thres_hdr))
3131                         return false;
3132
3133                 ppe_thres_hdr = get_unaligned_le16(data + needed);
3134                 needed += ieee80211_eht_ppe_size(ppe_thres_hdr,
3135                                                  elem->phy_cap_info);
3136         }
3137
3138         return len >= needed;
3139 }
3140
3141 static inline bool
3142 ieee80211_eht_oper_size_ok(const u8 *data, u8 len)
3143 {
3144         const struct ieee80211_eht_operation *elem = (const void *)data;
3145         u8 needed = sizeof(*elem);
3146
3147         if (len < needed)
3148                 return false;
3149
3150         if (elem->params & IEEE80211_EHT_OPER_INFO_PRESENT) {
3151                 needed += 3;
3152
3153                 if (elem->params &
3154                     IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)
3155                         needed += 2;
3156         }
3157
3158         return len >= needed;
3159 }
3160
3161 #define LISTEN_INT_USF  GENMASK(15, 14)
3162 #define LISTEN_INT_UI   GENMASK(13, 0)
3163
3164 #define IEEE80211_MAX_USF       FIELD_MAX(LISTEN_INT_USF)
3165 #define IEEE80211_MAX_UI        FIELD_MAX(LISTEN_INT_UI)
3166
3167 /* Authentication algorithms */
3168 #define WLAN_AUTH_OPEN 0
3169 #define WLAN_AUTH_SHARED_KEY 1
3170 #define WLAN_AUTH_FT 2
3171 #define WLAN_AUTH_SAE 3
3172 #define WLAN_AUTH_FILS_SK 4
3173 #define WLAN_AUTH_FILS_SK_PFS 5
3174 #define WLAN_AUTH_FILS_PK 6
3175 #define WLAN_AUTH_LEAP 128
3176
3177 #define WLAN_AUTH_CHALLENGE_LEN 128
3178
3179 #define WLAN_CAPABILITY_ESS             (1<<0)
3180 #define WLAN_CAPABILITY_IBSS            (1<<1)
3181
3182 /*
3183  * A mesh STA sets the ESS and IBSS capability bits to zero.
3184  * however, this holds true for p2p probe responses (in the p2p_find
3185  * phase) as well.
3186  */
3187 #define WLAN_CAPABILITY_IS_STA_BSS(cap) \
3188         (!((cap) & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)))
3189
3190 #define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)
3191 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
3192 #define WLAN_CAPABILITY_PRIVACY         (1<<4)
3193 #define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)
3194 #define WLAN_CAPABILITY_PBCC            (1<<6)
3195 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
3196
3197 /* 802.11h */
3198 #define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)
3199 #define WLAN_CAPABILITY_QOS             (1<<9)
3200 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
3201 #define WLAN_CAPABILITY_APSD            (1<<11)
3202 #define WLAN_CAPABILITY_RADIO_MEASURE   (1<<12)
3203 #define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)
3204 #define WLAN_CAPABILITY_DEL_BACK        (1<<14)
3205 #define WLAN_CAPABILITY_IMM_BACK        (1<<15)
3206
3207 /* DMG (60gHz) 802.11ad */
3208 /* type - bits 0..1 */
3209 #define WLAN_CAPABILITY_DMG_TYPE_MASK           (3<<0)
3210 #define WLAN_CAPABILITY_DMG_TYPE_IBSS           (1<<0) /* Tx by: STA */
3211 #define WLAN_CAPABILITY_DMG_TYPE_PBSS           (2<<0) /* Tx by: PCP */
3212 #define WLAN_CAPABILITY_DMG_TYPE_AP             (3<<0) /* Tx by: AP */
3213
3214 #define WLAN_CAPABILITY_DMG_CBAP_ONLY           (1<<2)
3215 #define WLAN_CAPABILITY_DMG_CBAP_SOURCE         (1<<3)
3216 #define WLAN_CAPABILITY_DMG_PRIVACY             (1<<4)
3217 #define WLAN_CAPABILITY_DMG_ECPAC               (1<<5)
3218
3219 #define WLAN_CAPABILITY_DMG_SPECTRUM_MGMT       (1<<8)
3220 #define WLAN_CAPABILITY_DMG_RADIO_MEASURE       (1<<12)
3221
3222 /* measurement */
3223 #define IEEE80211_SPCT_MSR_RPRT_MODE_LATE       (1<<0)
3224 #define IEEE80211_SPCT_MSR_RPRT_MODE_INCAPABLE  (1<<1)
3225 #define IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED    (1<<2)
3226
3227 #define IEEE80211_SPCT_MSR_RPRT_TYPE_BASIC      0
3228 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CCA        1
3229 #define IEEE80211_SPCT_MSR_RPRT_TYPE_RPI        2
3230 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI        8
3231 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC      11
3232
3233 /* 802.11g ERP information element */
3234 #define WLAN_ERP_NON_ERP_PRESENT (1<<0)
3235 #define WLAN_ERP_USE_PROTECTION (1<<1)
3236 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
3237
3238 /* WLAN_ERP_BARKER_PREAMBLE values */
3239 enum {
3240         WLAN_ERP_PREAMBLE_SHORT = 0,
3241         WLAN_ERP_PREAMBLE_LONG = 1,
3242 };
3243
3244 /* Band ID, 802.11ad #8.4.1.45 */
3245 enum {
3246         IEEE80211_BANDID_TV_WS = 0, /* TV white spaces */
3247         IEEE80211_BANDID_SUB1  = 1, /* Sub-1 GHz (excluding TV white spaces) */
3248         IEEE80211_BANDID_2G    = 2, /* 2.4 GHz */
3249         IEEE80211_BANDID_3G    = 3, /* 3.6 GHz */
3250         IEEE80211_BANDID_5G    = 4, /* 4.9 and 5 GHz */
3251         IEEE80211_BANDID_60G   = 5, /* 60 GHz */
3252 };
3253
3254 /* Status codes */
3255 enum ieee80211_statuscode {
3256         WLAN_STATUS_SUCCESS = 0,
3257         WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
3258         WLAN_STATUS_CAPS_UNSUPPORTED = 10,
3259         WLAN_STATUS_REASSOC_NO_ASSOC = 11,
3260         WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
3261         WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
3262         WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
3263         WLAN_STATUS_CHALLENGE_FAIL = 15,
3264         WLAN_STATUS_AUTH_TIMEOUT = 16,
3265         WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
3266         WLAN_STATUS_ASSOC_DENIED_RATES = 18,
3267         /* 802.11b */
3268         WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
3269         WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
3270         WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
3271         /* 802.11h */
3272         WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
3273         WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
3274         WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
3275         /* 802.11g */
3276         WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
3277         WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
3278         /* 802.11w */
3279         WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY = 30,
3280         WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION = 31,
3281         /* 802.11i */
3282         WLAN_STATUS_INVALID_IE = 40,
3283         WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
3284         WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
3285         WLAN_STATUS_INVALID_AKMP = 43,
3286         WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
3287         WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
3288         WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
3289         /* 802.11e */
3290         WLAN_STATUS_UNSPECIFIED_QOS = 32,
3291         WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
3292         WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
3293         WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
3294         WLAN_STATUS_REQUEST_DECLINED = 37,
3295         WLAN_STATUS_INVALID_QOS_PARAM = 38,
3296         WLAN_STATUS_CHANGE_TSPEC = 39,
3297         WLAN_STATUS_WAIT_TS_DELAY = 47,
3298         WLAN_STATUS_NO_DIRECT_LINK = 48,
3299         WLAN_STATUS_STA_NOT_PRESENT = 49,
3300         WLAN_STATUS_STA_NOT_QSTA = 50,
3301         /* 802.11s */
3302         WLAN_STATUS_ANTI_CLOG_REQUIRED = 76,
3303         WLAN_STATUS_FCG_NOT_SUPP = 78,
3304         WLAN_STATUS_STA_NO_TBTT = 78,
3305         /* 802.11ad */
3306         WLAN_STATUS_REJECTED_WITH_SUGGESTED_CHANGES = 39,
3307         WLAN_STATUS_REJECTED_FOR_DELAY_PERIOD = 47,
3308         WLAN_STATUS_REJECT_WITH_SCHEDULE = 83,
3309         WLAN_STATUS_PENDING_ADMITTING_FST_SESSION = 86,
3310         WLAN_STATUS_PERFORMING_FST_NOW = 87,
3311         WLAN_STATUS_PENDING_GAP_IN_BA_WINDOW = 88,
3312         WLAN_STATUS_REJECT_U_PID_SETTING = 89,
3313         WLAN_STATUS_REJECT_DSE_BAND = 96,
3314         WLAN_STATUS_DENIED_WITH_SUGGESTED_BAND_AND_CHANNEL = 99,
3315         WLAN_STATUS_DENIED_DUE_TO_SPECTRUM_MANAGEMENT = 103,
3316         /* 802.11ai */
3317         WLAN_STATUS_FILS_AUTHENTICATION_FAILURE = 108,
3318         WLAN_STATUS_UNKNOWN_AUTHENTICATION_SERVER = 109,
3319         WLAN_STATUS_SAE_HASH_TO_ELEMENT = 126,
3320         WLAN_STATUS_SAE_PK = 127,
3321 };
3322
3323
3324 /* Reason codes */
3325 enum ieee80211_reasoncode {
3326         WLAN_REASON_UNSPECIFIED = 1,
3327         WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
3328         WLAN_REASON_DEAUTH_LEAVING = 3,
3329         WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
3330         WLAN_REASON_DISASSOC_AP_BUSY = 5,
3331         WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
3332         WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
3333         WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
3334         WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
3335         /* 802.11h */
3336         WLAN_REASON_DISASSOC_BAD_POWER = 10,
3337         WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
3338         /* 802.11i */
3339         WLAN_REASON_INVALID_IE = 13,
3340         WLAN_REASON_MIC_FAILURE = 14,
3341         WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
3342         WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
3343         WLAN_REASON_IE_DIFFERENT = 17,
3344         WLAN_REASON_INVALID_GROUP_CIPHER = 18,
3345         WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
3346         WLAN_REASON_INVALID_AKMP = 20,
3347         WLAN_REASON_UNSUPP_RSN_VERSION = 21,
3348         WLAN_REASON_INVALID_RSN_IE_CAP = 22,
3349         WLAN_REASON_IEEE8021X_FAILED = 23,
3350         WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
3351         /* TDLS (802.11z) */
3352         WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
3353         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
3354         /* 802.11e */
3355         WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
3356         WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
3357         WLAN_REASON_DISASSOC_LOW_ACK = 34,
3358         WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
3359         WLAN_REASON_QSTA_LEAVE_QBSS = 36,
3360         WLAN_REASON_QSTA_NOT_USE = 37,
3361         WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
3362         WLAN_REASON_QSTA_TIMEOUT = 39,
3363         WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
3364         /* 802.11s */
3365         WLAN_REASON_MESH_PEER_CANCELED = 52,
3366         WLAN_REASON_MESH_MAX_PEERS = 53,
3367         WLAN_REASON_MESH_CONFIG = 54,
3368         WLAN_REASON_MESH_CLOSE = 55,
3369         WLAN_REASON_MESH_MAX_RETRIES = 56,
3370         WLAN_REASON_MESH_CONFIRM_TIMEOUT = 57,
3371         WLAN_REASON_MESH_INVALID_GTK = 58,
3372         WLAN_REASON_MESH_INCONSISTENT_PARAM = 59,
3373         WLAN_REASON_MESH_INVALID_SECURITY = 60,
3374         WLAN_REASON_MESH_PATH_ERROR = 61,
3375         WLAN_REASON_MESH_PATH_NOFORWARD = 62,
3376         WLAN_REASON_MESH_PATH_DEST_UNREACHABLE = 63,
3377         WLAN_REASON_MAC_EXISTS_IN_MBSS = 64,
3378         WLAN_REASON_MESH_CHAN_REGULATORY = 65,
3379         WLAN_REASON_MESH_CHAN = 66,
3380 };
3381
3382
3383 /* Information Element IDs */
3384 enum ieee80211_eid {
3385         WLAN_EID_SSID = 0,
3386         WLAN_EID_SUPP_RATES = 1,
3387         WLAN_EID_FH_PARAMS = 2, /* reserved now */
3388         WLAN_EID_DS_PARAMS = 3,
3389         WLAN_EID_CF_PARAMS = 4,
3390         WLAN_EID_TIM = 5,
3391         WLAN_EID_IBSS_PARAMS = 6,
3392         WLAN_EID_COUNTRY = 7,
3393         /* 8, 9 reserved */
3394         WLAN_EID_REQUEST = 10,
3395         WLAN_EID_QBSS_LOAD = 11,
3396         WLAN_EID_EDCA_PARAM_SET = 12,
3397         WLAN_EID_TSPEC = 13,
3398         WLAN_EID_TCLAS = 14,
3399         WLAN_EID_SCHEDULE = 15,
3400         WLAN_EID_CHALLENGE = 16,
3401         /* 17-31 reserved for challenge text extension */
3402         WLAN_EID_PWR_CONSTRAINT = 32,
3403         WLAN_EID_PWR_CAPABILITY = 33,
3404         WLAN_EID_TPC_REQUEST = 34,
3405         WLAN_EID_TPC_REPORT = 35,
3406         WLAN_EID_SUPPORTED_CHANNELS = 36,
3407         WLAN_EID_CHANNEL_SWITCH = 37,
3408         WLAN_EID_MEASURE_REQUEST = 38,
3409         WLAN_EID_MEASURE_REPORT = 39,
3410         WLAN_EID_QUIET = 40,
3411         WLAN_EID_IBSS_DFS = 41,
3412         WLAN_EID_ERP_INFO = 42,
3413         WLAN_EID_TS_DELAY = 43,
3414         WLAN_EID_TCLAS_PROCESSING = 44,
3415         WLAN_EID_HT_CAPABILITY = 45,
3416         WLAN_EID_QOS_CAPA = 46,
3417         /* 47 reserved for Broadcom */
3418         WLAN_EID_RSN = 48,
3419         WLAN_EID_802_15_COEX = 49,
3420         WLAN_EID_EXT_SUPP_RATES = 50,
3421         WLAN_EID_AP_CHAN_REPORT = 51,
3422         WLAN_EID_NEIGHBOR_REPORT = 52,
3423         WLAN_EID_RCPI = 53,
3424         WLAN_EID_MOBILITY_DOMAIN = 54,
3425         WLAN_EID_FAST_BSS_TRANSITION = 55,
3426         WLAN_EID_TIMEOUT_INTERVAL = 56,
3427         WLAN_EID_RIC_DATA = 57,
3428         WLAN_EID_DSE_REGISTERED_LOCATION = 58,
3429         WLAN_EID_SUPPORTED_REGULATORY_CLASSES = 59,
3430         WLAN_EID_EXT_CHANSWITCH_ANN = 60,
3431         WLAN_EID_HT_OPERATION = 61,
3432         WLAN_EID_SECONDARY_CHANNEL_OFFSET = 62,
3433         WLAN_EID_BSS_AVG_ACCESS_DELAY = 63,
3434         WLAN_EID_ANTENNA_INFO = 64,
3435         WLAN_EID_RSNI = 65,
3436         WLAN_EID_MEASUREMENT_PILOT_TX_INFO = 66,
3437         WLAN_EID_BSS_AVAILABLE_CAPACITY = 67,
3438         WLAN_EID_BSS_AC_ACCESS_DELAY = 68,
3439         WLAN_EID_TIME_ADVERTISEMENT = 69,
3440         WLAN_EID_RRM_ENABLED_CAPABILITIES = 70,
3441         WLAN_EID_MULTIPLE_BSSID = 71,
3442         WLAN_EID_BSS_COEX_2040 = 72,
3443         WLAN_EID_BSS_INTOLERANT_CHL_REPORT = 73,
3444         WLAN_EID_OVERLAP_BSS_SCAN_PARAM = 74,
3445         WLAN_EID_RIC_DESCRIPTOR = 75,
3446         WLAN_EID_MMIE = 76,
3447         WLAN_EID_ASSOC_COMEBACK_TIME = 77,
3448         WLAN_EID_EVENT_REQUEST = 78,
3449         WLAN_EID_EVENT_REPORT = 79,
3450         WLAN_EID_DIAGNOSTIC_REQUEST = 80,
3451         WLAN_EID_DIAGNOSTIC_REPORT = 81,
3452         WLAN_EID_LOCATION_PARAMS = 82,
3453         WLAN_EID_NON_TX_BSSID_CAP =  83,
3454         WLAN_EID_SSID_LIST = 84,
3455         WLAN_EID_MULTI_BSSID_IDX = 85,
3456         WLAN_EID_FMS_DESCRIPTOR = 86,
3457         WLAN_EID_FMS_REQUEST = 87,
3458         WLAN_EID_FMS_RESPONSE = 88,
3459         WLAN_EID_QOS_TRAFFIC_CAPA = 89,
3460         WLAN_EID_BSS_MAX_IDLE_PERIOD = 90,
3461         WLAN_EID_TSF_REQUEST = 91,
3462         WLAN_EID_TSF_RESPOSNE = 92,
3463         WLAN_EID_WNM_SLEEP_MODE = 93,
3464         WLAN_EID_TIM_BCAST_REQ = 94,
3465         WLAN_EID_TIM_BCAST_RESP = 95,
3466         WLAN_EID_COLL_IF_REPORT = 96,
3467         WLAN_EID_CHANNEL_USAGE = 97,
3468         WLAN_EID_TIME_ZONE = 98,
3469         WLAN_EID_DMS_REQUEST = 99,
3470         WLAN_EID_DMS_RESPONSE = 100,
3471         WLAN_EID_LINK_ID = 101,
3472         WLAN_EID_WAKEUP_SCHEDUL = 102,
3473         /* 103 reserved */
3474         WLAN_EID_CHAN_SWITCH_TIMING = 104,
3475         WLAN_EID_PTI_CONTROL = 105,
3476         WLAN_EID_PU_BUFFER_STATUS = 106,
3477         WLAN_EID_INTERWORKING = 107,
3478         WLAN_EID_ADVERTISEMENT_PROTOCOL = 108,
3479         WLAN_EID_EXPEDITED_BW_REQ = 109,
3480         WLAN_EID_QOS_MAP_SET = 110,
3481         WLAN_EID_ROAMING_CONSORTIUM = 111,
3482         WLAN_EID_EMERGENCY_ALERT = 112,
3483         WLAN_EID_MESH_CONFIG = 113,
3484         WLAN_EID_MESH_ID = 114,
3485         WLAN_EID_LINK_METRIC_REPORT = 115,
3486         WLAN_EID_CONGESTION_NOTIFICATION = 116,
3487         WLAN_EID_PEER_MGMT = 117,
3488         WLAN_EID_CHAN_SWITCH_PARAM = 118,
3489         WLAN_EID_MESH_AWAKE_WINDOW = 119,
3490         WLAN_EID_BEACON_TIMING = 120,
3491         WLAN_EID_MCCAOP_SETUP_REQ = 121,
3492         WLAN_EID_MCCAOP_SETUP_RESP = 122,
3493         WLAN_EID_MCCAOP_ADVERT = 123,
3494         WLAN_EID_MCCAOP_TEARDOWN = 124,
3495         WLAN_EID_GANN = 125,
3496         WLAN_EID_RANN = 126,
3497         WLAN_EID_EXT_CAPABILITY = 127,
3498         /* 128, 129 reserved for Agere */
3499         WLAN_EID_PREQ = 130,
3500         WLAN_EID_PREP = 131,
3501         WLAN_EID_PERR = 132,
3502         /* 133-136 reserved for Cisco */
3503         WLAN_EID_PXU = 137,
3504         WLAN_EID_PXUC = 138,
3505         WLAN_EID_AUTH_MESH_PEER_EXCH = 139,
3506         WLAN_EID_MIC = 140,
3507         WLAN_EID_DESTINATION_URI = 141,
3508         WLAN_EID_UAPSD_COEX = 142,
3509         WLAN_EID_WAKEUP_SCHEDULE = 143,
3510         WLAN_EID_EXT_SCHEDULE = 144,
3511         WLAN_EID_STA_AVAILABILITY = 145,
3512         WLAN_EID_DMG_TSPEC = 146,
3513         WLAN_EID_DMG_AT = 147,
3514         WLAN_EID_DMG_CAP = 148,
3515         /* 149 reserved for Cisco */
3516         WLAN_EID_CISCO_VENDOR_SPECIFIC = 150,
3517         WLAN_EID_DMG_OPERATION = 151,
3518         WLAN_EID_DMG_BSS_PARAM_CHANGE = 152,
3519         WLAN_EID_DMG_BEAM_REFINEMENT = 153,
3520         WLAN_EID_CHANNEL_MEASURE_FEEDBACK = 154,
3521         /* 155-156 reserved for Cisco */
3522         WLAN_EID_AWAKE_WINDOW = 157,
3523         WLAN_EID_MULTI_BAND = 158,
3524         WLAN_EID_ADDBA_EXT = 159,
3525         WLAN_EID_NEXT_PCP_LIST = 160,
3526         WLAN_EID_PCP_HANDOVER = 161,
3527         WLAN_EID_DMG_LINK_MARGIN = 162,
3528         WLAN_EID_SWITCHING_STREAM = 163,
3529         WLAN_EID_SESSION_TRANSITION = 164,
3530         WLAN_EID_DYN_TONE_PAIRING_REPORT = 165,
3531         WLAN_EID_CLUSTER_REPORT = 166,
3532         WLAN_EID_RELAY_CAP = 167,
3533         WLAN_EID_RELAY_XFER_PARAM_SET = 168,
3534         WLAN_EID_BEAM_LINK_MAINT = 169,
3535         WLAN_EID_MULTIPLE_MAC_ADDR = 170,
3536         WLAN_EID_U_PID = 171,
3537         WLAN_EID_DMG_LINK_ADAPT_ACK = 172,
3538         /* 173 reserved for Symbol */
3539         WLAN_EID_MCCAOP_ADV_OVERVIEW = 174,
3540         WLAN_EID_QUIET_PERIOD_REQ = 175,
3541         /* 176 reserved for Symbol */
3542         WLAN_EID_QUIET_PERIOD_RESP = 177,
3543         /* 178-179 reserved for Symbol */
3544         /* 180 reserved for ISO/IEC 20011 */
3545         WLAN_EID_EPAC_POLICY = 182,
3546         WLAN_EID_CLISTER_TIME_OFF = 183,
3547         WLAN_EID_INTER_AC_PRIO = 184,
3548         WLAN_EID_SCS_DESCRIPTOR = 185,
3549         WLAN_EID_QLOAD_REPORT = 186,
3550         WLAN_EID_HCCA_TXOP_UPDATE_COUNT = 187,
3551         WLAN_EID_HL_STREAM_ID = 188,
3552         WLAN_EID_GCR_GROUP_ADDR = 189,
3553         WLAN_EID_ANTENNA_SECTOR_ID_PATTERN = 190,
3554         WLAN_EID_VHT_CAPABILITY = 191,
3555         WLAN_EID_VHT_OPERATION = 192,
3556         WLAN_EID_EXTENDED_BSS_LOAD = 193,
3557         WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
3558         WLAN_EID_TX_POWER_ENVELOPE = 195,
3559         WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
3560         WLAN_EID_AID = 197,
3561         WLAN_EID_QUIET_CHANNEL = 198,
3562         WLAN_EID_OPMODE_NOTIF = 199,
3563
3564         WLAN_EID_REDUCED_NEIGHBOR_REPORT = 201,
3565
3566         WLAN_EID_AID_REQUEST = 210,
3567         WLAN_EID_AID_RESPONSE = 211,
3568         WLAN_EID_S1G_BCN_COMPAT = 213,
3569         WLAN_EID_S1G_SHORT_BCN_INTERVAL = 214,
3570         WLAN_EID_S1G_TWT = 216,
3571         WLAN_EID_S1G_CAPABILITIES = 217,
3572         WLAN_EID_VENDOR_SPECIFIC = 221,
3573         WLAN_EID_QOS_PARAMETER = 222,
3574         WLAN_EID_S1G_OPERATION = 232,
3575         WLAN_EID_CAG_NUMBER = 237,
3576         WLAN_EID_AP_CSN = 239,
3577         WLAN_EID_FILS_INDICATION = 240,
3578         WLAN_EID_DILS = 241,
3579         WLAN_EID_FRAGMENT = 242,
3580         WLAN_EID_RSNX = 244,
3581         WLAN_EID_EXTENSION = 255
3582 };
3583
3584 /* Element ID Extensions for Element ID 255 */
3585 enum ieee80211_eid_ext {
3586         WLAN_EID_EXT_ASSOC_DELAY_INFO = 1,
3587         WLAN_EID_EXT_FILS_REQ_PARAMS = 2,
3588         WLAN_EID_EXT_FILS_KEY_CONFIRM = 3,
3589         WLAN_EID_EXT_FILS_SESSION = 4,
3590         WLAN_EID_EXT_FILS_HLP_CONTAINER = 5,
3591         WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN = 6,
3592         WLAN_EID_EXT_KEY_DELIVERY = 7,
3593         WLAN_EID_EXT_FILS_WRAPPED_DATA = 8,
3594         WLAN_EID_EXT_FILS_PUBLIC_KEY = 12,
3595         WLAN_EID_EXT_FILS_NONCE = 13,
3596         WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE = 14,
3597         WLAN_EID_EXT_HE_CAPABILITY = 35,
3598         WLAN_EID_EXT_HE_OPERATION = 36,
3599         WLAN_EID_EXT_UORA = 37,
3600         WLAN_EID_EXT_HE_MU_EDCA = 38,
3601         WLAN_EID_EXT_HE_SPR = 39,
3602         WLAN_EID_EXT_NDP_FEEDBACK_REPORT_PARAMSET = 41,
3603         WLAN_EID_EXT_BSS_COLOR_CHG_ANN = 42,
3604         WLAN_EID_EXT_QUIET_TIME_PERIOD_SETUP = 43,
3605         WLAN_EID_EXT_ESS_REPORT = 45,
3606         WLAN_EID_EXT_OPS = 46,
3607         WLAN_EID_EXT_HE_BSS_LOAD = 47,
3608         WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME = 52,
3609         WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION = 55,
3610         WLAN_EID_EXT_NON_INHERITANCE = 56,
3611         WLAN_EID_EXT_KNOWN_BSSID = 57,
3612         WLAN_EID_EXT_SHORT_SSID_LIST = 58,
3613         WLAN_EID_EXT_HE_6GHZ_CAPA = 59,
3614         WLAN_EID_EXT_UL_MU_POWER_CAPA = 60,
3615         WLAN_EID_EXT_EHT_OPERATION = 106,
3616         WLAN_EID_EXT_EHT_MULTI_LINK = 107,
3617         WLAN_EID_EXT_EHT_CAPABILITY = 108,
3618 };
3619
3620 /* Action category code */
3621 enum ieee80211_category {
3622         WLAN_CATEGORY_SPECTRUM_MGMT = 0,
3623         WLAN_CATEGORY_QOS = 1,
3624         WLAN_CATEGORY_DLS = 2,
3625         WLAN_CATEGORY_BACK = 3,
3626         WLAN_CATEGORY_PUBLIC = 4,
3627         WLAN_CATEGORY_RADIO_MEASUREMENT = 5,
3628         WLAN_CATEGORY_FAST_BBS_TRANSITION = 6,
3629         WLAN_CATEGORY_HT = 7,
3630         WLAN_CATEGORY_SA_QUERY = 8,
3631         WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION = 9,
3632         WLAN_CATEGORY_WNM = 10,
3633         WLAN_CATEGORY_WNM_UNPROTECTED = 11,
3634         WLAN_CATEGORY_TDLS = 12,
3635         WLAN_CATEGORY_MESH_ACTION = 13,
3636         WLAN_CATEGORY_MULTIHOP_ACTION = 14,
3637         WLAN_CATEGORY_SELF_PROTECTED = 15,
3638         WLAN_CATEGORY_DMG = 16,
3639         WLAN_CATEGORY_WMM = 17,
3640         WLAN_CATEGORY_FST = 18,
3641         WLAN_CATEGORY_UNPROT_DMG = 20,
3642         WLAN_CATEGORY_VHT = 21,
3643         WLAN_CATEGORY_S1G = 22,
3644         WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
3645         WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
3646 };
3647
3648 /* SPECTRUM_MGMT action code */
3649 enum ieee80211_spectrum_mgmt_actioncode {
3650         WLAN_ACTION_SPCT_MSR_REQ = 0,
3651         WLAN_ACTION_SPCT_MSR_RPRT = 1,
3652         WLAN_ACTION_SPCT_TPC_REQ = 2,
3653         WLAN_ACTION_SPCT_TPC_RPRT = 3,
3654         WLAN_ACTION_SPCT_CHL_SWITCH = 4,
3655 };
3656
3657 /* HT action codes */
3658 enum ieee80211_ht_actioncode {
3659         WLAN_HT_ACTION_NOTIFY_CHANWIDTH = 0,
3660         WLAN_HT_ACTION_SMPS = 1,
3661         WLAN_HT_ACTION_PSMP = 2,
3662         WLAN_HT_ACTION_PCO_PHASE = 3,
3663         WLAN_HT_ACTION_CSI = 4,
3664         WLAN_HT_ACTION_NONCOMPRESSED_BF = 5,
3665         WLAN_HT_ACTION_COMPRESSED_BF = 6,
3666         WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
3667 };
3668
3669 /* VHT action codes */
3670 enum ieee80211_vht_actioncode {
3671         WLAN_VHT_ACTION_COMPRESSED_BF = 0,
3672         WLAN_VHT_ACTION_GROUPID_MGMT = 1,
3673         WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
3674 };
3675
3676 /* Self Protected Action codes */
3677 enum ieee80211_self_protected_actioncode {
3678         WLAN_SP_RESERVED = 0,
3679         WLAN_SP_MESH_PEERING_OPEN = 1,
3680         WLAN_SP_MESH_PEERING_CONFIRM = 2,
3681         WLAN_SP_MESH_PEERING_CLOSE = 3,
3682         WLAN_SP_MGK_INFORM = 4,
3683         WLAN_SP_MGK_ACK = 5,
3684 };
3685
3686 /* Mesh action codes */
3687 enum ieee80211_mesh_actioncode {
3688         WLAN_MESH_ACTION_LINK_METRIC_REPORT,
3689         WLAN_MESH_ACTION_HWMP_PATH_SELECTION,
3690         WLAN_MESH_ACTION_GATE_ANNOUNCEMENT,
3691         WLAN_MESH_ACTION_CONGESTION_CONTROL_NOTIFICATION,
3692         WLAN_MESH_ACTION_MCCA_SETUP_REQUEST,
3693         WLAN_MESH_ACTION_MCCA_SETUP_REPLY,
3694         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT_REQUEST,
3695         WLAN_MESH_ACTION_MCCA_ADVERTISEMENT,
3696         WLAN_MESH_ACTION_MCCA_TEARDOWN,
3697         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_REQUEST,
3698         WLAN_MESH_ACTION_TBTT_ADJUSTMENT_RESPONSE,
3699 };
3700
3701 /* Unprotected WNM action codes */
3702 enum ieee80211_unprotected_wnm_actioncode {
3703         WLAN_UNPROTECTED_WNM_ACTION_TIM = 0,
3704         WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE = 1,
3705 };
3706
3707 /* Security key length */
3708 enum ieee80211_key_len {
3709         WLAN_KEY_LEN_WEP40 = 5,
3710         WLAN_KEY_LEN_WEP104 = 13,
3711         WLAN_KEY_LEN_CCMP = 16,
3712         WLAN_KEY_LEN_CCMP_256 = 32,
3713         WLAN_KEY_LEN_TKIP = 32,
3714         WLAN_KEY_LEN_AES_CMAC = 16,
3715         WLAN_KEY_LEN_SMS4 = 32,
3716         WLAN_KEY_LEN_GCMP = 16,
3717         WLAN_KEY_LEN_GCMP_256 = 32,
3718         WLAN_KEY_LEN_BIP_CMAC_256 = 32,
3719         WLAN_KEY_LEN_BIP_GMAC_128 = 16,
3720         WLAN_KEY_LEN_BIP_GMAC_256 = 32,
3721 };
3722
3723 enum ieee80211_s1g_actioncode {
3724         WLAN_S1G_AID_SWITCH_REQUEST,
3725         WLAN_S1G_AID_SWITCH_RESPONSE,
3726         WLAN_S1G_SYNC_CONTROL,
3727         WLAN_S1G_STA_INFO_ANNOUNCE,
3728         WLAN_S1G_EDCA_PARAM_SET,
3729         WLAN_S1G_EL_OPERATION,
3730         WLAN_S1G_TWT_SETUP,
3731         WLAN_S1G_TWT_TEARDOWN,
3732         WLAN_S1G_SECT_GROUP_ID_LIST,
3733         WLAN_S1G_SECT_ID_FEEDBACK,
3734         WLAN_S1G_TWT_INFORMATION = 11,
3735 };
3736
3737 #define IEEE80211_WEP_IV_LEN            4
3738 #define IEEE80211_WEP_ICV_LEN           4
3739 #define IEEE80211_CCMP_HDR_LEN          8
3740 #define IEEE80211_CCMP_MIC_LEN          8
3741 #define IEEE80211_CCMP_PN_LEN           6
3742 #define IEEE80211_CCMP_256_HDR_LEN      8
3743 #define IEEE80211_CCMP_256_MIC_LEN      16
3744 #define IEEE80211_CCMP_256_PN_LEN       6
3745 #define IEEE80211_TKIP_IV_LEN           8
3746 #define IEEE80211_TKIP_ICV_LEN          4
3747 #define IEEE80211_CMAC_PN_LEN           6
3748 #define IEEE80211_GMAC_PN_LEN           6
3749 #define IEEE80211_GCMP_HDR_LEN          8
3750 #define IEEE80211_GCMP_MIC_LEN          16
3751 #define IEEE80211_GCMP_PN_LEN           6
3752
3753 #define FILS_NONCE_LEN                  16
3754 #define FILS_MAX_KEK_LEN                64
3755
3756 #define FILS_ERP_MAX_USERNAME_LEN       16
3757 #define FILS_ERP_MAX_REALM_LEN          253
3758 #define FILS_ERP_MAX_RRK_LEN            64
3759
3760 #define PMK_MAX_LEN                     64
3761 #define SAE_PASSWORD_MAX_LEN            128
3762
3763 /* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
3764 enum ieee80211_pub_actioncode {
3765         WLAN_PUB_ACTION_20_40_BSS_COEX = 0,
3766         WLAN_PUB_ACTION_DSE_ENABLEMENT = 1,
3767         WLAN_PUB_ACTION_DSE_DEENABLEMENT = 2,
3768         WLAN_PUB_ACTION_DSE_REG_LOC_ANN = 3,
3769         WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,
3770         WLAN_PUB_ACTION_DSE_MSMT_REQ = 5,
3771         WLAN_PUB_ACTION_DSE_MSMT_RESP = 6,
3772         WLAN_PUB_ACTION_MSMT_PILOT = 7,
3773         WLAN_PUB_ACTION_DSE_PC = 8,
3774         WLAN_PUB_ACTION_VENDOR_SPECIFIC = 9,
3775         WLAN_PUB_ACTION_GAS_INITIAL_REQ = 10,
3776         WLAN_PUB_ACTION_GAS_INITIAL_RESP = 11,
3777         WLAN_PUB_ACTION_GAS_COMEBACK_REQ = 12,
3778         WLAN_PUB_ACTION_GAS_COMEBACK_RESP = 13,
3779         WLAN_PUB_ACTION_TDLS_DISCOVER_RES = 14,
3780         WLAN_PUB_ACTION_LOC_TRACK_NOTI = 15,
3781         WLAN_PUB_ACTION_QAB_REQUEST_FRAME = 16,
3782         WLAN_PUB_ACTION_QAB_RESPONSE_FRAME = 17,
3783         WLAN_PUB_ACTION_QMF_POLICY = 18,
3784         WLAN_PUB_ACTION_QMF_POLICY_CHANGE = 19,
3785         WLAN_PUB_ACTION_QLOAD_REQUEST = 20,
3786         WLAN_PUB_ACTION_QLOAD_REPORT = 21,
3787         WLAN_PUB_ACTION_HCCA_TXOP_ADVERT = 22,
3788         WLAN_PUB_ACTION_HCCA_TXOP_RESPONSE = 23,
3789         WLAN_PUB_ACTION_PUBLIC_KEY = 24,
3790         WLAN_PUB_ACTION_CHANNEL_AVAIL_QUERY = 25,
3791         WLAN_PUB_ACTION_CHANNEL_SCHEDULE_MGMT = 26,
3792         WLAN_PUB_ACTION_CONTACT_VERI_SIGNAL = 27,
3793         WLAN_PUB_ACTION_GDD_ENABLEMENT_REQ = 28,
3794         WLAN_PUB_ACTION_GDD_ENABLEMENT_RESP = 29,
3795         WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
3796         WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
3797         WLAN_PUB_ACTION_FTM_REQUEST = 32,
3798         WLAN_PUB_ACTION_FTM_RESPONSE = 33,
3799         WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
3800 };
3801
3802 /* TDLS action codes */
3803 enum ieee80211_tdls_actioncode {
3804         WLAN_TDLS_SETUP_REQUEST = 0,
3805         WLAN_TDLS_SETUP_RESPONSE = 1,
3806         WLAN_TDLS_SETUP_CONFIRM = 2,
3807         WLAN_TDLS_TEARDOWN = 3,
3808         WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
3809         WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
3810         WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
3811         WLAN_TDLS_PEER_PSM_REQUEST = 7,
3812         WLAN_TDLS_PEER_PSM_RESPONSE = 8,
3813         WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
3814         WLAN_TDLS_DISCOVERY_REQUEST = 10,
3815 };
3816
3817 /* Extended Channel Switching capability to be set in the 1st byte of
3818  * the @WLAN_EID_EXT_CAPABILITY information element
3819  */
3820 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING    BIT(2)
3821
3822 /* Multiple BSSID capability is set in the 6th bit of 3rd byte of the
3823  * @WLAN_EID_EXT_CAPABILITY information element
3824  */
3825 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT      BIT(6)
3826
3827 /* Timing Measurement protocol for time sync is set in the 7th bit of 3rd byte
3828  * of the @WLAN_EID_EXT_CAPABILITY information element
3829  */
3830 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT       BIT(7)
3831
3832 /* TDLS capabilities in the 4th byte of @WLAN_EID_EXT_CAPABILITY */
3833 #define WLAN_EXT_CAPA4_TDLS_BUFFER_STA          BIT(4)
3834 #define WLAN_EXT_CAPA4_TDLS_PEER_PSM            BIT(5)
3835 #define WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH         BIT(6)
3836
3837 /* Interworking capabilities are set in 7th bit of 4th byte of the
3838  * @WLAN_EID_EXT_CAPABILITY information element
3839  */
3840 #define WLAN_EXT_CAPA4_INTERWORKING_ENABLED     BIT(7)
3841
3842 /*
3843  * TDLS capabililites to be enabled in the 5th byte of the
3844  * @WLAN_EID_EXT_CAPABILITY information element
3845  */
3846 #define WLAN_EXT_CAPA5_TDLS_ENABLED     BIT(5)
3847 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED  BIT(6)
3848 #define WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED    BIT(7)
3849
3850 #define WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED     BIT(5)
3851 #define WLAN_EXT_CAPA8_OPMODE_NOTIF     BIT(6)
3852
3853 /* Defines the maximal number of MSDUs in an A-MSDU. */
3854 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB    BIT(7)
3855 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB    BIT(0)
3856
3857 /*
3858  * Fine Timing Measurement Initiator - bit 71 of @WLAN_EID_EXT_CAPABILITY
3859  * information element
3860  */
3861 #define WLAN_EXT_CAPA9_FTM_INITIATOR    BIT(7)
3862
3863 /* Defines support for TWT Requester and TWT Responder */
3864 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT   BIT(5)
3865 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT   BIT(6)
3866
3867 /*
3868  * When set, indicates that the AP is able to tolerate 26-tone RU UL
3869  * OFDMA transmissions using HE TB PPDU from OBSS (not falsely classify the
3870  * 26-tone RU UL OFDMA transmissions as radar pulses).
3871  */
3872 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(7)
3873
3874 /* Defines support for enhanced multi-bssid advertisement*/
3875 #define WLAN_EXT_CAPA11_EMA_SUPPORT     BIT(3)
3876
3877 /* TDLS specific payload type in the LLC/SNAP header */
3878 #define WLAN_TDLS_SNAP_RFTYPE   0x2
3879
3880 /* BSS Coex IE information field bits */
3881 #define WLAN_BSS_COEX_INFORMATION_REQUEST       BIT(0)
3882
3883 /**
3884  * enum ieee80211_mesh_sync_method - mesh synchronization method identifier
3885  *
3886  * @IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET: the default synchronization method
3887  * @IEEE80211_SYNC_METHOD_VENDOR: a vendor specific synchronization method
3888  *      that will be specified in a vendor specific information element
3889  */
3890 enum ieee80211_mesh_sync_method {
3891         IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET = 1,
3892         IEEE80211_SYNC_METHOD_VENDOR = 255,
3893 };
3894
3895 /**
3896  * enum ieee80211_mesh_path_protocol - mesh path selection protocol identifier
3897  *
3898  * @IEEE80211_PATH_PROTOCOL_HWMP: the default path selection protocol
3899  * @IEEE80211_PATH_PROTOCOL_VENDOR: a vendor specific protocol that will
3900  *      be specified in a vendor specific information element
3901  */
3902 enum ieee80211_mesh_path_protocol {
3903         IEEE80211_PATH_PROTOCOL_HWMP = 1,
3904         IEEE80211_PATH_PROTOCOL_VENDOR = 255,
3905 };
3906
3907 /**
3908  * enum ieee80211_mesh_path_metric - mesh path selection metric identifier
3909  *
3910  * @IEEE80211_PATH_METRIC_AIRTIME: the default path selection metric
3911  * @IEEE80211_PATH_METRIC_VENDOR: a vendor specific metric that will be
3912  *      specified in a vendor specific information element
3913  */
3914 enum ieee80211_mesh_path_metric {
3915         IEEE80211_PATH_METRIC_AIRTIME = 1,
3916         IEEE80211_PATH_METRIC_VENDOR = 255,
3917 };
3918
3919 /**
3920  * enum ieee80211_root_mode_identifier - root mesh STA mode identifier
3921  *
3922  * These attribute are used by dot11MeshHWMPRootMode to set root mesh STA mode
3923  *
3924  * @IEEE80211_ROOTMODE_NO_ROOT: the mesh STA is not a root mesh STA (default)
3925  * @IEEE80211_ROOTMODE_ROOT: the mesh STA is a root mesh STA if greater than
3926  *      this value
3927  * @IEEE80211_PROACTIVE_PREQ_NO_PREP: the mesh STA is a root mesh STA supports
3928  *      the proactive PREQ with proactive PREP subfield set to 0
3929  * @IEEE80211_PROACTIVE_PREQ_WITH_PREP: the mesh STA is a root mesh STA
3930  *      supports the proactive PREQ with proactive PREP subfield set to 1
3931  * @IEEE80211_PROACTIVE_RANN: the mesh STA is a root mesh STA supports
3932  *      the proactive RANN
3933  */
3934 enum ieee80211_root_mode_identifier {
3935         IEEE80211_ROOTMODE_NO_ROOT = 0,
3936         IEEE80211_ROOTMODE_ROOT = 1,
3937         IEEE80211_PROACTIVE_PREQ_NO_PREP = 2,
3938         IEEE80211_PROACTIVE_PREQ_WITH_PREP = 3,
3939         IEEE80211_PROACTIVE_RANN = 4,
3940 };
3941
3942 /*
3943  * IEEE 802.11-2007 7.3.2.9 Country information element
3944  *
3945  * Minimum length is 8 octets, ie len must be evenly
3946  * divisible by 2
3947  */
3948
3949 /* Although the spec says 8 I'm seeing 6 in practice */
3950 #define IEEE80211_COUNTRY_IE_MIN_LEN    6
3951
3952 /* The Country String field of the element shall be 3 octets in length */
3953 #define IEEE80211_COUNTRY_STRING_LEN    3
3954
3955 /*
3956  * For regulatory extension stuff see IEEE 802.11-2007
3957  * Annex I (page 1141) and Annex J (page 1147). Also
3958  * review 7.3.2.9.
3959  *
3960  * When dot11RegulatoryClassesRequired is true and the
3961  * first_channel/reg_extension_id is >= 201 then the IE
3962  * compromises of the 'ext' struct represented below:
3963  *
3964  *  - Regulatory extension ID - when generating IE this just needs
3965  *    to be monotonically increasing for each triplet passed in
3966  *    the IE
3967  *  - Regulatory class - index into set of rules
3968  *  - Coverage class - index into air propagation time (Table 7-27),
3969  *    in microseconds, you can compute the air propagation time from
3970  *    the index by multiplying by 3, so index 10 yields a propagation
3971  *    of 10 us. Valid values are 0-31, values 32-255 are not defined
3972  *    yet. A value of 0 inicates air propagation of <= 1 us.
3973  *
3974  *  See also Table I.2 for Emission limit sets and table
3975  *  I.3 for Behavior limit sets. Table J.1 indicates how to map
3976  *  a reg_class to an emission limit set and behavior limit set.
3977  */
3978 #define IEEE80211_COUNTRY_EXTENSION_ID 201
3979
3980 /*
3981  *  Channels numbers in the IE must be monotonically increasing
3982  *  if dot11RegulatoryClassesRequired is not true.
3983  *
3984  *  If dot11RegulatoryClassesRequired is true consecutive
3985  *  subband triplets following a regulatory triplet shall
3986  *  have monotonically increasing first_channel number fields.
3987  *
3988  *  Channel numbers shall not overlap.
3989  *
3990  *  Note that max_power is signed.
3991  */
3992 struct ieee80211_country_ie_triplet {
3993         union {
3994                 struct {
3995                         u8 first_channel;
3996                         u8 num_channels;
3997                         s8 max_power;
3998                 } __packed chans;
3999                 struct {
4000                         u8 reg_extension_id;
4001                         u8 reg_class;
4002                         u8 coverage_class;
4003                 } __packed ext;
4004         };
4005 } __packed;
4006
4007 enum ieee80211_timeout_interval_type {
4008         WLAN_TIMEOUT_REASSOC_DEADLINE = 1 /* 802.11r */,
4009         WLAN_TIMEOUT_KEY_LIFETIME = 2 /* 802.11r */,
4010         WLAN_TIMEOUT_ASSOC_COMEBACK = 3 /* 802.11w */,
4011 };
4012
4013 /**
4014  * struct ieee80211_timeout_interval_ie - Timeout Interval element
4015  * @type: type, see &enum ieee80211_timeout_interval_type
4016  * @value: timeout interval value
4017  */
4018 struct ieee80211_timeout_interval_ie {
4019         u8 type;
4020         __le32 value;
4021 } __packed;
4022
4023 /**
4024  * enum ieee80211_idle_options - BSS idle options
4025  * @WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE: the station should send an RSN
4026  *      protected frame to the AP to reset the idle timer at the AP for
4027  *      the station.
4028  */
4029 enum ieee80211_idle_options {
4030         WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE = BIT(0),
4031 };
4032
4033 /**
4034  * struct ieee80211_bss_max_idle_period_ie
4035  *
4036  * This structure refers to "BSS Max idle period element"
4037  *
4038  * @max_idle_period: indicates the time period during which a station can
4039  *      refrain from transmitting frames to its associated AP without being
4040  *      disassociated. In units of 1000 TUs.
4041  * @idle_options: indicates the options associated with the BSS idle capability
4042  *      as specified in &enum ieee80211_idle_options.
4043  */
4044 struct ieee80211_bss_max_idle_period_ie {
4045         __le16 max_idle_period;
4046         u8 idle_options;
4047 } __packed;
4048
4049 /* BACK action code */
4050 enum ieee80211_back_actioncode {
4051         WLAN_ACTION_ADDBA_REQ = 0,
4052         WLAN_ACTION_ADDBA_RESP = 1,
4053         WLAN_ACTION_DELBA = 2,
4054 };
4055
4056 /* BACK (block-ack) parties */
4057 enum ieee80211_back_parties {
4058         WLAN_BACK_RECIPIENT = 0,
4059         WLAN_BACK_INITIATOR = 1,
4060 };
4061
4062 /* SA Query action */
4063 enum ieee80211_sa_query_action {
4064         WLAN_ACTION_SA_QUERY_REQUEST = 0,
4065         WLAN_ACTION_SA_QUERY_RESPONSE = 1,
4066 };
4067
4068 /**
4069  * struct ieee80211_bssid_index
4070  *
4071  * This structure refers to "Multiple BSSID-index element"
4072  *
4073  * @bssid_index: BSSID index
4074  * @dtim_period: optional, overrides transmitted BSS dtim period
4075  * @dtim_count: optional, overrides transmitted BSS dtim count
4076  */
4077 struct ieee80211_bssid_index {
4078         u8 bssid_index;
4079         u8 dtim_period;
4080         u8 dtim_count;
4081 };
4082
4083 /**
4084  * struct ieee80211_multiple_bssid_configuration
4085  *
4086  * This structure refers to "Multiple BSSID Configuration element"
4087  *
4088  * @bssid_count: total number of active BSSIDs in the set
4089  * @profile_periodicity: the least number of beacon frames need to be received
4090  *      in order to discover all the nontransmitted BSSIDs in the set.
4091  */
4092 struct ieee80211_multiple_bssid_configuration {
4093         u8 bssid_count;
4094         u8 profile_periodicity;
4095 };
4096
4097 #define SUITE(oui, id) (((oui) << 8) | (id))
4098
4099 /* cipher suite selectors */
4100 #define WLAN_CIPHER_SUITE_USE_GROUP     SUITE(0x000FAC, 0)
4101 #define WLAN_CIPHER_SUITE_WEP40         SUITE(0x000FAC, 1)
4102 #define WLAN_CIPHER_SUITE_TKIP          SUITE(0x000FAC, 2)
4103 /* reserved:                            SUITE(0x000FAC, 3) */
4104 #define WLAN_CIPHER_SUITE_CCMP          SUITE(0x000FAC, 4)
4105 #define WLAN_CIPHER_SUITE_WEP104        SUITE(0x000FAC, 5)
4106 #define WLAN_CIPHER_SUITE_AES_CMAC      SUITE(0x000FAC, 6)
4107 #define WLAN_CIPHER_SUITE_GCMP          SUITE(0x000FAC, 8)
4108 #define WLAN_CIPHER_SUITE_GCMP_256      SUITE(0x000FAC, 9)
4109 #define WLAN_CIPHER_SUITE_CCMP_256      SUITE(0x000FAC, 10)
4110 #define WLAN_CIPHER_SUITE_BIP_GMAC_128  SUITE(0x000FAC, 11)
4111 #define WLAN_CIPHER_SUITE_BIP_GMAC_256  SUITE(0x000FAC, 12)
4112 #define WLAN_CIPHER_SUITE_BIP_CMAC_256  SUITE(0x000FAC, 13)
4113
4114 #define WLAN_CIPHER_SUITE_SMS4          SUITE(0x001472, 1)
4115
4116 /* AKM suite selectors */
4117 #define WLAN_AKM_SUITE_8021X                    SUITE(0x000FAC, 1)
4118 #define WLAN_AKM_SUITE_PSK                      SUITE(0x000FAC, 2)
4119 #define WLAN_AKM_SUITE_FT_8021X                 SUITE(0x000FAC, 3)
4120 #define WLAN_AKM_SUITE_FT_PSK                   SUITE(0x000FAC, 4)
4121 #define WLAN_AKM_SUITE_8021X_SHA256             SUITE(0x000FAC, 5)
4122 #define WLAN_AKM_SUITE_PSK_SHA256               SUITE(0x000FAC, 6)
4123 #define WLAN_AKM_SUITE_TDLS                     SUITE(0x000FAC, 7)
4124 #define WLAN_AKM_SUITE_SAE                      SUITE(0x000FAC, 8)
4125 #define WLAN_AKM_SUITE_FT_OVER_SAE              SUITE(0x000FAC, 9)
4126 #define WLAN_AKM_SUITE_AP_PEER_KEY              SUITE(0x000FAC, 10)
4127 #define WLAN_AKM_SUITE_8021X_SUITE_B            SUITE(0x000FAC, 11)
4128 #define WLAN_AKM_SUITE_8021X_SUITE_B_192        SUITE(0x000FAC, 12)
4129 #define WLAN_AKM_SUITE_FT_8021X_SHA384          SUITE(0x000FAC, 13)
4130 #define WLAN_AKM_SUITE_FILS_SHA256              SUITE(0x000FAC, 14)
4131 #define WLAN_AKM_SUITE_FILS_SHA384              SUITE(0x000FAC, 15)
4132 #define WLAN_AKM_SUITE_FT_FILS_SHA256           SUITE(0x000FAC, 16)
4133 #define WLAN_AKM_SUITE_FT_FILS_SHA384           SUITE(0x000FAC, 17)
4134 #define WLAN_AKM_SUITE_OWE                      SUITE(0x000FAC, 18)
4135 #define WLAN_AKM_SUITE_FT_PSK_SHA384            SUITE(0x000FAC, 19)
4136 #define WLAN_AKM_SUITE_PSK_SHA384               SUITE(0x000FAC, 20)
4137
4138 #define WLAN_AKM_SUITE_WFA_DPP                  SUITE(WLAN_OUI_WFA, 2)
4139
4140 #define WLAN_MAX_KEY_LEN                32
4141
4142 #define WLAN_PMK_NAME_LEN               16
4143 #define WLAN_PMKID_LEN                  16
4144 #define WLAN_PMK_LEN_EAP_LEAP           16
4145 #define WLAN_PMK_LEN                    32
4146 #define WLAN_PMK_LEN_SUITE_B_192        48
4147
4148 #define WLAN_OUI_WFA                    0x506f9a
4149 #define WLAN_OUI_TYPE_WFA_P2P           9
4150 #define WLAN_OUI_TYPE_WFA_DPP           0x1A
4151 #define WLAN_OUI_MICROSOFT              0x0050f2
4152 #define WLAN_OUI_TYPE_MICROSOFT_WPA     1
4153 #define WLAN_OUI_TYPE_MICROSOFT_WMM     2
4154 #define WLAN_OUI_TYPE_MICROSOFT_WPS     4
4155 #define WLAN_OUI_TYPE_MICROSOFT_TPC     8
4156
4157 /*
4158  * WMM/802.11e Tspec Element
4159  */
4160 #define IEEE80211_WMM_IE_TSPEC_TID_MASK         0x0F
4161 #define IEEE80211_WMM_IE_TSPEC_TID_SHIFT        1
4162
4163 enum ieee80211_tspec_status_code {
4164         IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED = 0,
4165         IEEE80211_TSPEC_STATUS_ADDTS_INVAL_PARAMS = 0x1,
4166 };
4167
4168 struct ieee80211_tspec_ie {
4169         u8 element_id;
4170         u8 len;
4171         u8 oui[3];
4172         u8 oui_type;
4173         u8 oui_subtype;
4174         u8 version;
4175         __le16 tsinfo;
4176         u8 tsinfo_resvd;
4177         __le16 nominal_msdu;
4178         __le16 max_msdu;
4179         __le32 min_service_int;
4180         __le32 max_service_int;
4181         __le32 inactivity_int;
4182         __le32 suspension_int;
4183         __le32 service_start_time;
4184         __le32 min_data_rate;
4185         __le32 mean_data_rate;
4186         __le32 peak_data_rate;
4187         __le32 max_burst_size;
4188         __le32 delay_bound;
4189         __le32 min_phy_rate;
4190         __le16 sba;
4191         __le16 medium_time;
4192 } __packed;
4193
4194 struct ieee80211_he_6ghz_capa {
4195         /* uses IEEE80211_HE_6GHZ_CAP_* below */
4196         __le16 capa;
4197 } __packed;
4198
4199 /* HE 6 GHz band capabilities */
4200 /* uses enum ieee80211_min_mpdu_spacing values */
4201 #define IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START    0x0007
4202 /* uses enum ieee80211_vht_max_ampdu_length_exp values */
4203 #define IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP 0x0038
4204 /* uses IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_* values */
4205 #define IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN      0x00c0
4206 /* WLAN_HT_CAP_SM_PS_* values */
4207 #define IEEE80211_HE_6GHZ_CAP_SM_PS             0x0600
4208 #define IEEE80211_HE_6GHZ_CAP_RD_RESPONDER      0x0800
4209 #define IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS    0x1000
4210 #define IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS    0x2000
4211
4212 /**
4213  * ieee80211_get_qos_ctl - get pointer to qos control bytes
4214  * @hdr: the frame
4215  *
4216  * The qos ctrl bytes come after the frame_control, duration, seq_num
4217  * and 3 or 4 addresses of length ETH_ALEN. Checks frame_control to choose
4218  * between struct ieee80211_qos_hdr_4addr and struct ieee80211_qos_hdr.
4219  */
4220 static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
4221 {
4222         union {
4223                 struct ieee80211_qos_hdr        addr3;
4224                 struct ieee80211_qos_hdr_4addr  addr4;
4225         } *qos;
4226
4227         qos = (void *)hdr;
4228         if (ieee80211_has_a4(qos->addr3.frame_control))
4229                 return (u8 *)&qos->addr4.qos_ctrl;
4230         else
4231                 return (u8 *)&qos->addr3.qos_ctrl;
4232 }
4233
4234 /**
4235  * ieee80211_get_tid - get qos TID
4236  * @hdr: the frame
4237  */
4238 static inline u8 ieee80211_get_tid(struct ieee80211_hdr *hdr)
4239 {
4240         u8 *qc = ieee80211_get_qos_ctl(hdr);
4241
4242         return qc[0] & IEEE80211_QOS_CTL_TID_MASK;
4243 }
4244
4245 /**
4246  * ieee80211_get_SA - get pointer to SA
4247  * @hdr: the frame
4248  *
4249  * Given an 802.11 frame, this function returns the offset
4250  * to the source address (SA). It does not verify that the
4251  * header is long enough to contain the address, and the
4252  * header must be long enough to contain the frame control
4253  * field.
4254  */
4255 static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
4256 {
4257         if (ieee80211_has_a4(hdr->frame_control))
4258                 return hdr->addr4;
4259         if (ieee80211_has_fromds(hdr->frame_control))
4260                 return hdr->addr3;
4261         return hdr->addr2;
4262 }
4263
4264 /**
4265  * ieee80211_get_DA - get pointer to DA
4266  * @hdr: the frame
4267  *
4268  * Given an 802.11 frame, this function returns the offset
4269  * to the destination address (DA). It does not verify that
4270  * the header is long enough to contain the address, and the
4271  * header must be long enough to contain the frame control
4272  * field.
4273  */
4274 static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
4275 {
4276         if (ieee80211_has_tods(hdr->frame_control))
4277                 return hdr->addr3;
4278         else
4279                 return hdr->addr1;
4280 }
4281
4282 /**
4283  * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
4284  * @skb: the skb to check, starting with the 802.11 header
4285  */
4286 static inline bool ieee80211_is_bufferable_mmpdu(struct ieee80211_hdr *hdr, size_t len)
4287 {
4288         struct ieee80211_mgmt *mgmt = (void *)hdr;
4289         __le16 fc = mgmt->frame_control;
4290
4291         /*
4292          * IEEE 802.11 REVme D2.0 definition of bufferable MMPDU;
4293          * note that this ignores the IBSS special case.
4294          */
4295         if (!ieee80211_is_mgmt(fc))
4296                 return false;
4297
4298         if (ieee80211_is_disassoc(fc) || ieee80211_is_deauth(fc))
4299                 return true;
4300
4301         if (!ieee80211_is_action(fc))
4302                 return false;
4303
4304         if (len < offsetofend(typeof(*mgmt), u.action.u.ftm.action_code))
4305                 return true;
4306
4307         /* action frame - additionally check for non-bufferable FTM */
4308
4309         if (mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
4310             mgmt->u.action.category != WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION)
4311                 return true;
4312
4313         if (mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_REQUEST ||
4314             mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_RESPONSE)
4315                 return false;
4316
4317         return true;
4318 }
4319
4320 /**
4321  * ieee80211_is_robust_mgmt_frame - check if frame is a robust management frame
4322  * @hdr: the frame (buffer must include at least the first octet of payload)
4323  */
4324 static inline bool ieee80211_is_robust_mgmt_frame(struct ieee80211_hdr *hdr)
4325 {
4326         if (ieee80211_is_disassoc(hdr->frame_control) ||
4327             ieee80211_is_deauth(hdr->frame_control))
4328                 return true;
4329
4330         if (ieee80211_is_action(hdr->frame_control)) {
4331                 u8 *category;
4332
4333                 /*
4334                  * Action frames, excluding Public Action frames, are Robust
4335                  * Management Frames. However, if we are looking at a Protected
4336                  * frame, skip the check since the data may be encrypted and
4337                  * the frame has already been found to be a Robust Management
4338                  * Frame (by the other end).
4339                  */
4340                 if (ieee80211_has_protected(hdr->frame_control))
4341                         return true;
4342                 category = ((u8 *) hdr) + 24;
4343                 return *category != WLAN_CATEGORY_PUBLIC &&
4344                         *category != WLAN_CATEGORY_HT &&
4345                         *category != WLAN_CATEGORY_WNM_UNPROTECTED &&
4346                         *category != WLAN_CATEGORY_SELF_PROTECTED &&
4347                         *category != WLAN_CATEGORY_UNPROT_DMG &&
4348                         *category != WLAN_CATEGORY_VHT &&
4349                         *category != WLAN_CATEGORY_S1G &&
4350                         *category != WLAN_CATEGORY_VENDOR_SPECIFIC;
4351         }
4352
4353         return false;
4354 }
4355
4356 /**
4357  * ieee80211_is_public_action - check if frame is a public action frame
4358  * @hdr: the frame
4359  * @len: length of the frame
4360  */
4361 static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
4362                                               size_t len)
4363 {
4364         struct ieee80211_mgmt *mgmt = (void *)hdr;
4365
4366         if (len < IEEE80211_MIN_ACTION_SIZE)
4367                 return false;
4368         if (!ieee80211_is_action(hdr->frame_control))
4369                 return false;
4370         return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
4371 }
4372
4373 static inline bool is_multicast_ether_addr(const u8 *a)
4374 {
4375         return 0x01 & a[0];
4376 }
4377
4378 /**
4379  * _ieee80211_is_group_privacy_action - check if frame is a group addressed
4380  * privacy action frame
4381  * @hdr: the frame
4382  */
4383 static inline bool ieee80211_is_group_privacy_action(struct ieee80211_hdr *hdr)
4384 {
4385         struct ieee80211_mgmt *mgmt = (void *)hdr;
4386
4387         if (!ieee80211_is_action(hdr->frame_control) ||
4388             !is_multicast_ether_addr(hdr->addr1))
4389                 return false;
4390
4391         return mgmt->u.action.category == WLAN_CATEGORY_MESH_ACTION ||
4392                mgmt->u.action.category == WLAN_CATEGORY_MULTIHOP_ACTION;
4393 }
4394
4395 /**
4396  * ieee80211_tu_to_usec - convert time units (TU) to microseconds
4397  * @tu: the TUs
4398  */
4399 static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
4400 {
4401         return 1024 * tu;
4402 }
4403
4404 /**
4405  * ieee80211_check_tim - check if AID bit is set in TIM
4406  * @tim: the TIM IE
4407  * @tim_len: length of the TIM IE
4408  * @aid: the AID to look for
4409  */
4410 static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
4411                                        u8 tim_len, u16 aid)
4412 {
4413         u8 mask;
4414         u8 index, indexn1, indexn2;
4415
4416         if (unlikely(!tim || tim_len < sizeof(*tim)))
4417                 return false;
4418
4419         aid &= 0x3fff;
4420         index = aid / 8;
4421         mask  = 1 << (aid & 7);
4422
4423         indexn1 = tim->bitmap_ctrl & 0xfe;
4424         indexn2 = tim_len + indexn1 - 4;
4425
4426         if (index < indexn1 || index > indexn2)
4427                 return false;
4428
4429         index -= indexn1;
4430
4431         return !!(tim->virtual_map[index] & mask);
4432 }
4433
4434 /* convert time units */
4435 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
4436 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
4437
4438 /* convert frequencies */
4439 #define MHZ_TO_KHZ(freq) ((freq) * 1000)
4440 #define KHZ_TO_MHZ(freq) ((freq) / 1000)
4441 #define PR_KHZ(f) KHZ_TO_MHZ(f), f % 1000
4442 #define KHZ_F "%d.%03d"
4443
4444 /* convert powers */
4445 #define DBI_TO_MBI(gain) ((gain) * 100)
4446 #define MBI_TO_DBI(gain) ((gain) / 100)
4447 #define DBM_TO_MBM(gain) ((gain) * 100)
4448 #define MBM_TO_DBM(gain) ((gain) / 100)
4449
4450 static inline bool ieee80211_is_timing_measurement(struct ieee80211_hdr *hdr, size_t len)
4451 {
4452         struct ieee80211_mgmt *mgmt = (void *)hdr;
4453
4454         if (len < IEEE80211_MIN_ACTION_SIZE)
4455                 return false;
4456
4457         if (!ieee80211_is_action(hdr->frame_control))
4458                 return false;
4459
4460         if (mgmt->u.action.category == WLAN_CATEGORY_WNM_UNPROTECTED &&
4461             mgmt->u.action.u.wnm_timing_msr.action_code ==
4462                 WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE &&
4463             len >= offsetofend(typeof(*mgmt), u.action.u.wnm_timing_msr))
4464                 return true;
4465
4466         return false;
4467 }
4468
4469 static inline bool ieee80211_is_ftm(struct ieee80211_hdr *hdr, size_t len)
4470 {
4471         struct ieee80211_mgmt *mgmt = (void *)hdr;
4472
4473         if (!ieee80211_is_public_action((void *)mgmt, len))
4474                 return false;
4475
4476         if (mgmt->u.action.u.ftm.action_code ==
4477                 WLAN_PUB_ACTION_FTM_RESPONSE &&
4478             len >= offsetofend(typeof(*mgmt), u.action.u.ftm))
4479                 return true;
4480
4481         return false;
4482 }
4483
4484 struct element {
4485         u8 id;
4486         u8 datalen;
4487         u8 data[];
4488 } __packed;
4489
4490 /* element iteration helpers */
4491 #define for_each_element(_elem, _data, _datalen)                        \
4492         for (_elem = (const struct element *)(_data);                   \
4493              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4494                 (int)sizeof(*_elem) &&                                  \
4495              (const u8 *)(_data) + (_datalen) - (const u8 *)_elem >=    \
4496                 (int)sizeof(*_elem) + _elem->datalen;                   \
4497              _elem = (const struct element *)(_elem->data + _elem->datalen))
4498
4499 #define for_each_element_id(element, _id, data, datalen)                \
4500         for_each_element(element, data, datalen)                        \
4501                 if (element->id == (_id))
4502
4503 #define for_each_element_extid(element, extid, _data, _datalen)         \
4504         for_each_element(element, _data, _datalen)                      \
4505                 if (element->id == WLAN_EID_EXTENSION &&                \
4506                     element->datalen > 0 &&                             \
4507                     element->data[0] == (extid))
4508
4509 #define for_each_subelement(sub, element)                               \
4510         for_each_element(sub, (element)->data, (element)->datalen)
4511
4512 #define for_each_subelement_id(sub, id, element)                        \
4513         for_each_element_id(sub, id, (element)->data, (element)->datalen)
4514
4515 #define for_each_subelement_extid(sub, extid, element)                  \
4516         for_each_element_extid(sub, extid, (element)->data, (element)->datalen)
4517
4518 /**
4519  * for_each_element_completed - determine if element parsing consumed all data
4520  * @element: element pointer after for_each_element() or friends
4521  * @data: same data pointer as passed to for_each_element() or friends
4522  * @datalen: same data length as passed to for_each_element() or friends
4523  *
4524  * This function returns %true if all the data was parsed or considered
4525  * while walking the elements. Only use this if your for_each_element()
4526  * loop cannot be broken out of, otherwise it always returns %false.
4527  *
4528  * If some data was malformed, this returns %false since the last parsed
4529  * element will not fill the whole remaining data.
4530  */
4531 static inline bool for_each_element_completed(const struct element *element,
4532                                               const void *data, size_t datalen)
4533 {
4534         return (const u8 *)element == (const u8 *)data + datalen;
4535 }
4536
4537 /*
4538  * RSNX Capabilities:
4539  * bits 0-3: Field length (n-1)
4540  */
4541 #define WLAN_RSNX_CAPA_PROTECTED_TWT BIT(4)
4542 #define WLAN_RSNX_CAPA_SAE_H2E BIT(5)
4543
4544 /*
4545  * reduced neighbor report, based on Draft P802.11ax_D6.1,
4546  * section 9.4.2.170 and accepted contributions.
4547  */
4548 #define IEEE80211_AP_INFO_TBTT_HDR_TYPE                         0x03
4549 #define IEEE80211_AP_INFO_TBTT_HDR_FILTERED                     0x04
4550 #define IEEE80211_AP_INFO_TBTT_HDR_COLOC                        0x08
4551 #define IEEE80211_AP_INFO_TBTT_HDR_COUNT                        0xF0
4552 #define IEEE80211_TBTT_INFO_TYPE_TBTT                           0
4553 #define IEEE80211_TBTT_INFO_TYPE_MLD                            1
4554
4555 #define IEEE80211_RNR_TBTT_PARAMS_OCT_RECOMMENDED               0x01
4556 #define IEEE80211_RNR_TBTT_PARAMS_SAME_SSID                     0x02
4557 #define IEEE80211_RNR_TBTT_PARAMS_MULTI_BSSID                   0x04
4558 #define IEEE80211_RNR_TBTT_PARAMS_TRANSMITTED_BSSID             0x08
4559 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_ESS                     0x10
4560 #define IEEE80211_RNR_TBTT_PARAMS_PROBE_ACTIVE                  0x20
4561 #define IEEE80211_RNR_TBTT_PARAMS_COLOC_AP                      0x40
4562
4563 #define IEEE80211_RNR_TBTT_PARAMS_PSD_NO_LIMIT                  127
4564 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED                  -128
4565
4566 struct ieee80211_neighbor_ap_info {
4567         u8 tbtt_info_hdr;
4568         u8 tbtt_info_len;
4569         u8 op_class;
4570         u8 channel;
4571 } __packed;
4572
4573 enum ieee80211_range_params_max_total_ltf {
4574         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_4 = 0,
4575         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_8,
4576         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_16,
4577         IEEE80211_RANGE_PARAMS_MAX_TOTAL_LTF_UNSPECIFIED,
4578 };
4579
4580 /*
4581  * reduced neighbor report, based on Draft P802.11be_D3.0,
4582  * section 9.4.2.170.2.
4583  */
4584 struct ieee80211_rnr_mld_params {
4585         u8 mld_id;
4586         __le16 params;
4587 } __packed;
4588
4589 #define IEEE80211_RNR_MLD_PARAMS_LINK_ID                        0x000F
4590 #define IEEE80211_RNR_MLD_PARAMS_BSS_CHANGE_COUNT               0x0FF0
4591 #define IEEE80211_RNR_MLD_PARAMS_UPDATES_INCLUDED               0x1000
4592 #define IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK                  0x2000
4593
4594 /* Format of the TBTT information element if it has 7, 8 or 9 bytes */
4595 struct ieee80211_tbtt_info_7_8_9 {
4596         u8 tbtt_offset;
4597         u8 bssid[6];
4598
4599         /* The following element is optional, structure may not grow */
4600         u8 bss_params;
4601         s8 psd_20;
4602 } __packed;
4603
4604 /* Format of the TBTT information element if it has >= 11 bytes */
4605 struct ieee80211_tbtt_info_ge_11 {
4606         u8 tbtt_offset;
4607         u8 bssid[6];
4608         __le32 short_ssid;
4609
4610         /* The following elements are optional, structure may grow */
4611         u8 bss_params;
4612         s8 psd_20;
4613         struct ieee80211_rnr_mld_params mld_params;
4614 } __packed;
4615
4616 /* multi-link device */
4617 #define IEEE80211_MLD_MAX_NUM_LINKS     15
4618
4619 #define IEEE80211_ML_CONTROL_TYPE                       0x0007
4620 #define IEEE80211_ML_CONTROL_TYPE_BASIC                 0
4621 #define IEEE80211_ML_CONTROL_TYPE_PREQ                  1
4622 #define IEEE80211_ML_CONTROL_TYPE_RECONF                2
4623 #define IEEE80211_ML_CONTROL_TYPE_TDLS                  3
4624 #define IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS           4
4625 #define IEEE80211_ML_CONTROL_PRESENCE_MASK              0xfff0
4626
4627 struct ieee80211_multi_link_elem {
4628         __le16 control;
4629         u8 variable[];
4630 } __packed;
4631
4632 #define IEEE80211_MLC_BASIC_PRES_LINK_ID                0x0010
4633 #define IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT       0x0020
4634 #define IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY         0x0040
4635 #define IEEE80211_MLC_BASIC_PRES_EML_CAPA               0x0080
4636 #define IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP            0x0100
4637 #define IEEE80211_MLC_BASIC_PRES_MLD_ID                 0x0200
4638
4639 #define IEEE80211_MED_SYNC_DELAY_DURATION               0x00ff
4640 #define IEEE80211_MED_SYNC_DELAY_SYNC_OFDM_ED_THRESH    0x0f00
4641 #define IEEE80211_MED_SYNC_DELAY_SYNC_MAX_NUM_TXOPS     0xf000
4642
4643 /*
4644  * Described in P802.11be_D3.0
4645  * dot11MSDTimerDuration should default to 5484 (i.e. 171.375)
4646  * dot11MSDOFDMEDthreshold defaults to -72 (i.e. 0)
4647  * dot11MSDTXOPMAX defaults to 1
4648  */
4649 #define IEEE80211_MED_SYNC_DELAY_DEFAULT                0x10ac
4650
4651 #define IEEE80211_EML_CAP_EMLSR_SUPP                    0x0001
4652 #define IEEE80211_EML_CAP_EMLSR_PADDING_DELAY           0x000e
4653 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_0US              0
4654 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US             1
4655 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_64US             2
4656 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_128US            3
4657 #define  IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_256US            4
4658 #define IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY        0x0070
4659 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_0US           0
4660 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_16US          1
4661 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_32US          2
4662 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US          3
4663 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_128US         4
4664 #define  IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_256US         5
4665 #define IEEE80211_EML_CAP_EMLMR_SUPPORT                 0x0080
4666 #define IEEE80211_EML_CAP_EMLMR_DELAY                   0x0700
4667 #define  IEEE80211_EML_CAP_EMLMR_DELAY_0US                      0
4668 #define  IEEE80211_EML_CAP_EMLMR_DELAY_32US                     1
4669 #define  IEEE80211_EML_CAP_EMLMR_DELAY_64US                     2
4670 #define  IEEE80211_EML_CAP_EMLMR_DELAY_128US                    3
4671 #define  IEEE80211_EML_CAP_EMLMR_DELAY_256US                    4
4672 #define IEEE80211_EML_CAP_TRANSITION_TIMEOUT            0x7800
4673 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_0                 0
4674 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128US             1
4675 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_256US             2
4676 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_512US             3
4677 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_1TU               4
4678 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_2TU               5
4679 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_4TU               6
4680 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_8TU               7
4681 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_16TU              8
4682 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_32TU              9
4683 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_64TU              10
4684 #define  IEEE80211_EML_CAP_TRANSITION_TIMEOUT_128TU             11
4685
4686 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS            0x000f
4687 #define IEEE80211_MLD_CAP_OP_SRS_SUPPORT                0x0010
4688 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP   0x0060
4689 #define IEEE80211_MLD_CAP_OP_FREQ_SEP_TYPE_IND          0x0f80
4690 #define IEEE80211_MLD_CAP_OP_AAR_SUPPORT                0x1000
4691
4692 struct ieee80211_mle_basic_common_info {
4693         u8 len;
4694         u8 mld_mac_addr[6];
4695         u8 variable[];
4696 } __packed;
4697
4698 #define IEEE80211_MLC_PREQ_PRES_MLD_ID                  0x0010
4699
4700 struct ieee80211_mle_preq_common_info {
4701         u8 len;
4702         u8 variable[];
4703 } __packed;
4704
4705 #define IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR          0x0010
4706
4707 /* no fixed fields in RECONF */
4708
4709 struct ieee80211_mle_tdls_common_info {
4710         u8 len;
4711         u8 ap_mld_mac_addr[6];
4712 } __packed;
4713
4714 #define IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR  0x0010
4715
4716 /* no fixed fields in PRIO_ACCESS */
4717
4718 /**
4719  * ieee80211_mle_common_size - check multi-link element common size
4720  * @data: multi-link element, must already be checked for size using
4721  *      ieee80211_mle_size_ok()
4722  */
4723 static inline u8 ieee80211_mle_common_size(const u8 *data)
4724 {
4725         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4726         u16 control = le16_to_cpu(mle->control);
4727         u8 common = 0;
4728
4729         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
4730         case IEEE80211_ML_CONTROL_TYPE_BASIC:
4731         case IEEE80211_ML_CONTROL_TYPE_PREQ:
4732         case IEEE80211_ML_CONTROL_TYPE_TDLS:
4733         case IEEE80211_ML_CONTROL_TYPE_RECONF:
4734                 /*
4735                  * The length is the first octet pointed by mle->variable so no
4736                  * need to add anything
4737                  */
4738                 break;
4739         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
4740                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
4741                         common += 6;
4742                 return common;
4743         default:
4744                 return 0;
4745         }
4746
4747         return sizeof(*mle) + common + mle->variable[0];
4748 }
4749
4750 /**
4751  * ieee80211_mle_get_bss_param_ch_cnt - returns the BSS parameter change count
4752  * @mle: the basic multi link element
4753  *
4754  * The element is assumed to be of the correct type (BASIC) and big enough,
4755  * this must be checked using ieee80211_mle_type_ok().
4756  *
4757  * If the BSS parameter change count value can't be found (the presence bit
4758  * for it is clear), 0 will be returned.
4759  */
4760 static inline u8
4761 ieee80211_mle_get_bss_param_ch_cnt(const struct ieee80211_multi_link_elem *mle)
4762 {
4763         u16 control = le16_to_cpu(mle->control);
4764         const u8 *common = mle->variable;
4765
4766         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4767         common += sizeof(struct ieee80211_mle_basic_common_info);
4768
4769         if (!(control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT))
4770                 return 0;
4771
4772         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4773                 common += 1;
4774
4775         return *common;
4776 }
4777
4778 /**
4779  * ieee80211_mle_get_eml_med_sync_delay - returns the medium sync delay
4780  * @data: pointer to the multi link EHT IE
4781  *
4782  * The element is assumed to be of the correct type (BASIC) and big enough,
4783  * this must be checked using ieee80211_mle_type_ok().
4784  *
4785  * If the medium synchronization is not present, then the default value is
4786  * returned.
4787  */
4788 static inline u16 ieee80211_mle_get_eml_med_sync_delay(const u8 *data)
4789 {
4790         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4791         u16 control = le16_to_cpu(mle->control);
4792         const u8 *common = mle->variable;
4793
4794         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4795         common += sizeof(struct ieee80211_mle_basic_common_info);
4796
4797         if (!(control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY))
4798                 return IEEE80211_MED_SYNC_DELAY_DEFAULT;
4799
4800         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4801                 common += 1;
4802         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4803                 common += 1;
4804
4805         return get_unaligned_le16(common);
4806 }
4807
4808 /**
4809  * ieee80211_mle_get_eml_cap - returns the EML capability
4810  * @data: pointer to the multi link EHT IE
4811  *
4812  * The element is assumed to be of the correct type (BASIC) and big enough,
4813  * this must be checked using ieee80211_mle_type_ok().
4814  *
4815  * If the EML capability is not present, 0 will be returned.
4816  */
4817 static inline u16 ieee80211_mle_get_eml_cap(const u8 *data)
4818 {
4819         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4820         u16 control = le16_to_cpu(mle->control);
4821         const u8 *common = mle->variable;
4822
4823         /* common points now at the beginning of ieee80211_mle_basic_common_info */
4824         common += sizeof(struct ieee80211_mle_basic_common_info);
4825
4826         if (!(control & IEEE80211_MLC_BASIC_PRES_EML_CAPA))
4827                 return 0;
4828
4829         if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4830                 common += 1;
4831         if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4832                 common += 1;
4833         if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
4834                 common += 2;
4835
4836         return get_unaligned_le16(common);
4837 }
4838
4839 /**
4840  * ieee80211_mle_size_ok - validate multi-link element size
4841  * @data: pointer to the element data
4842  * @len: length of the containing element
4843  */
4844 static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
4845 {
4846         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4847         u8 fixed = sizeof(*mle);
4848         u8 common = 0;
4849         bool check_common_len = false;
4850         u16 control;
4851
4852         if (len < fixed)
4853                 return false;
4854
4855         control = le16_to_cpu(mle->control);
4856
4857         switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
4858         case IEEE80211_ML_CONTROL_TYPE_BASIC:
4859                 common += sizeof(struct ieee80211_mle_basic_common_info);
4860                 check_common_len = true;
4861                 if (control & IEEE80211_MLC_BASIC_PRES_LINK_ID)
4862                         common += 1;
4863                 if (control & IEEE80211_MLC_BASIC_PRES_BSS_PARAM_CH_CNT)
4864                         common += 1;
4865                 if (control & IEEE80211_MLC_BASIC_PRES_MED_SYNC_DELAY)
4866                         common += 2;
4867                 if (control & IEEE80211_MLC_BASIC_PRES_EML_CAPA)
4868                         common += 2;
4869                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP)
4870                         common += 2;
4871                 if (control & IEEE80211_MLC_BASIC_PRES_MLD_ID)
4872                         common += 1;
4873                 break;
4874         case IEEE80211_ML_CONTROL_TYPE_PREQ:
4875                 common += sizeof(struct ieee80211_mle_preq_common_info);
4876                 if (control & IEEE80211_MLC_PREQ_PRES_MLD_ID)
4877                         common += 1;
4878                 check_common_len = true;
4879                 break;
4880         case IEEE80211_ML_CONTROL_TYPE_RECONF:
4881                 if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
4882                         common += 6;
4883                 break;
4884         case IEEE80211_ML_CONTROL_TYPE_TDLS:
4885                 common += sizeof(struct ieee80211_mle_tdls_common_info);
4886                 check_common_len = true;
4887                 break;
4888         case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
4889                 if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
4890                         common += 6;
4891                 break;
4892         default:
4893                 /* we don't know this type */
4894                 return true;
4895         }
4896
4897         if (len < fixed + common)
4898                 return false;
4899
4900         if (!check_common_len)
4901                 return true;
4902
4903         /* if present, common length is the first octet there */
4904         return mle->variable[0] >= common;
4905 }
4906
4907 /**
4908  * ieee80211_mle_type_ok - validate multi-link element type and size
4909  * @data: pointer to the element data
4910  * @type: expected type of the element
4911  * @len: length of the containing element
4912  */
4913 static inline bool ieee80211_mle_type_ok(const u8 *data, u8 type, size_t len)
4914 {
4915         const struct ieee80211_multi_link_elem *mle = (const void *)data;
4916         u16 control;
4917
4918         if (!ieee80211_mle_size_ok(data, len))
4919                 return false;
4920
4921         control = le16_to_cpu(mle->control);
4922
4923         if (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE) == type)
4924                 return true;
4925
4926         return false;
4927 }
4928
4929 enum ieee80211_mle_subelems {
4930         IEEE80211_MLE_SUBELEM_PER_STA_PROFILE           = 0,
4931         IEEE80211_MLE_SUBELEM_FRAGMENT                  = 254,
4932 };
4933
4934 #define IEEE80211_MLE_STA_CONTROL_LINK_ID                       0x000f
4935 #define IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE              0x0010
4936 #define IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT          0x0020
4937 #define IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT            0x0040
4938 #define IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT              0x0080
4939 #define IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT             0x0100
4940 #define IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT        0x0200
4941 #define IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE              0x0400
4942 #define IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT  0x0800
4943
4944 struct ieee80211_mle_per_sta_profile {
4945         __le16 control;
4946         u8 sta_info_len;
4947         u8 variable[];
4948 } __packed;
4949
4950 /**
4951  * ieee80211_mle_basic_sta_prof_size_ok - validate basic multi-link element sta
4952  *      profile size
4953  * @data: pointer to the sub element data
4954  * @len: length of the containing sub element
4955  */
4956 static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
4957                                                         size_t len)
4958 {
4959         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
4960         u16 control;
4961         u8 fixed = sizeof(*prof);
4962         u8 info_len = 1;
4963
4964         if (len < fixed)
4965                 return false;
4966
4967         control = le16_to_cpu(prof->control);
4968
4969         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
4970                 info_len += 6;
4971         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
4972                 info_len += 2;
4973         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
4974                 info_len += 8;
4975         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
4976                 info_len += 2;
4977         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
4978             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
4979                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
4980                         info_len += 2;
4981                 else
4982                         info_len += 1;
4983         }
4984         if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
4985                 info_len += 1;
4986
4987         return prof->sta_info_len >= info_len &&
4988                fixed + prof->sta_info_len <= len;
4989 }
4990
4991 /**
4992  * ieee80211_mle_basic_sta_prof_bss_param_ch_cnt - get per-STA profile BSS
4993  *      parameter change count
4994  * @prof: the per-STA profile, having been checked with
4995  *      ieee80211_mle_basic_sta_prof_size_ok() for the correct length
4996  *
4997  * Return: The BSS parameter change count value if present, 0 otherwise.
4998  */
4999 static inline u8
5000 ieee80211_mle_basic_sta_prof_bss_param_ch_cnt(const struct ieee80211_mle_per_sta_profile *prof)
5001 {
5002         u16 control = le16_to_cpu(prof->control);
5003         const u8 *pos = prof->variable;
5004
5005         if (!(control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT))
5006                 return 0;
5007
5008         if (control & IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT)
5009                 pos += 6;
5010         if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
5011                 pos += 2;
5012         if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
5013                 pos += 8;
5014         if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
5015                 pos += 2;
5016         if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
5017             control & IEEE80211_MLE_STA_CONTROL_NSTR_LINK_PAIR_PRESENT) {
5018                 if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
5019                         pos += 2;
5020                 else
5021                         pos += 1;
5022         }
5023
5024         return *pos;
5025 }
5026
5027 #define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID                        0x000f
5028 #define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE               0x0010
5029 #define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT           0x0020
5030 #define IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT           0x0040
5031 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_UPDATE_TYPE          0x0780
5032 #define IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT       0x0800
5033
5034 /**
5035  * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
5036  *      element sta profile size.
5037  * @data: pointer to the sub element data
5038  * @len: length of the containing sub element
5039  */
5040 static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
5041                                                          size_t len)
5042 {
5043         const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
5044         u16 control;
5045         u8 fixed = sizeof(*prof);
5046         u8 info_len = 1;
5047
5048         if (len < fixed)
5049                 return false;
5050
5051         control = le16_to_cpu(prof->control);
5052
5053         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
5054                 info_len += 6;
5055         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT)
5056                 info_len += 2;
5057         if (control & IEEE80211_MLE_STA_RECONF_CONTROL_OPERATION_PARAMS_PRESENT)
5058                 info_len += 2;
5059
5060         return prof->sta_info_len >= info_len &&
5061                ((size_t)(fixed + prof->sta_info_len - 1) <= len);
5062 }
5063
5064 #define for_each_mle_subelement(_elem, _data, _len)                     \
5065         if (ieee80211_mle_size_ok(_data, _len))                         \
5066                 for_each_element(_elem,                                 \
5067                                  _data + ieee80211_mle_common_size(_data),\
5068                                  _len - ieee80211_mle_common_size(_data))
5069
5070 #endif /* __LINUX_IEEE80211_H */