1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 #ifndef __NET_CFG80211_H 3 #define __NET_CFG80211_H 4 /* 5 * 802.11 device and configuration interface 6 * 7 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 8 * Copyright 2013-2014 Intel Mobile Communications GmbH 9 * Copyright 2015-2017 Intel Deutschland GmbH 10 * Copyright (C) 2018-2024 Intel Corporation 11 */ 12 13 #include <linux/ethtool.h> 14 #include <uapi/linux/rfkill.h> 15 #include <linux/netdevice.h> 16 #include <linux/debugfs.h> 17 #include <linux/list.h> 18 #include <linux/bug.h> 19 #include <linux/netlink.h> 20 #include <linux/skbuff.h> 21 #include <linux/nl80211.h> 22 #include <linux/if_ether.h> 23 #include <linux/ieee80211.h> 24 #include <linux/net.h> 25 #include <linux/rfkill.h> 26 #include <net/regulatory.h> 27 28 /** 29 * DOC: Introduction 30 * 31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges 32 * userspace and drivers, and offers some utility functionality associated 33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used 34 * by all modern wireless drivers in Linux, so that they offer a consistent 35 * API through nl80211. For backward compatibility, cfg80211 also offers 36 * wireless extensions to userspace, but hides them from drivers completely. 37 * 38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum 39 * use restrictions. 40 */ 41 42 43 /** 44 * DOC: Device registration 45 * 46 * In order for a driver to use cfg80211, it must register the hardware device 47 * with cfg80211. This happens through a number of hardware capability structs 48 * described below. 49 * 50 * The fundamental structure for each device is the 'wiphy', of which each 51 * instance describes a physical wireless device connected to the system. Each 52 * such wiphy can have zero, one, or many virtual interfaces associated with 53 * it, which need to be identified as such by pointing the network interface's 54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes 55 * the wireless part of the interface. Normally this struct is embedded in the 56 * network interface's private data area. Drivers can optionally allow creating 57 * or destroying virtual interfaces on the fly, but without at least one or the 58 * ability to create some the wireless device isn't useful. 59 * 60 * Each wiphy structure contains device capability information, and also has 61 * a pointer to the various operations the driver offers. The definitions and 62 * structures here describe these capabilities in detail. 63 */ 64 65 struct wiphy; 66 67 /* 68 * wireless hardware capability structures 69 */ 70 71 /** 72 * enum ieee80211_channel_flags - channel flags 73 * 74 * Channel flags set by the regulatory control code. 75 * 76 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 77 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes 78 * sending probe requests or beaconing. 79 * @IEEE80211_CHAN_PSD: Power spectral density (in dBm) is set for this 80 * channel. 81 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 82 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 83 * is not permitted. 84 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 85 * is not permitted. 86 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel. 87 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band, 88 * this flag indicates that an 80 MHz channel cannot use this 89 * channel as the control or any of the secondary channels. 90 * This may be due to the driver or due to regulatory bandwidth 91 * restrictions. 92 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band, 93 * this flag indicates that an 160 MHz channel cannot use this 94 * channel as the control or any of the secondary channels. 95 * This may be due to the driver or due to regulatory bandwidth 96 * restrictions. 97 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY 98 * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT 99 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted 100 * on this channel. 101 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted 102 * on this channel. 103 * @IEEE80211_CHAN_NO_HE: HE operation is not permitted on this channel. 104 * @IEEE80211_CHAN_1MHZ: 1 MHz bandwidth is permitted 105 * on this channel. 106 * @IEEE80211_CHAN_2MHZ: 2 MHz bandwidth is permitted 107 * on this channel. 108 * @IEEE80211_CHAN_4MHZ: 4 MHz bandwidth is permitted 109 * on this channel. 110 * @IEEE80211_CHAN_8MHZ: 8 MHz bandwidth is permitted 111 * on this channel. 112 * @IEEE80211_CHAN_16MHZ: 16 MHz bandwidth is permitted 113 * on this channel. 114 * @IEEE80211_CHAN_NO_320MHZ: If the driver supports 320 MHz on the band, 115 * this flag indicates that a 320 MHz channel cannot use this 116 * channel as the control or any of the secondary channels. 117 * This may be due to the driver or due to regulatory bandwidth 118 * restrictions. 119 * @IEEE80211_CHAN_NO_EHT: EHT operation is not permitted on this channel. 120 * @IEEE80211_CHAN_DFS_CONCURRENT: See %NL80211_RRF_DFS_CONCURRENT 121 * @IEEE80211_CHAN_NO_6GHZ_VLP_CLIENT: Client connection with VLP AP 122 * not permitted using this channel 123 * @IEEE80211_CHAN_NO_6GHZ_AFC_CLIENT: Client connection with AFC AP 124 * not permitted using this channel 125 * @IEEE80211_CHAN_CAN_MONITOR: This channel can be used for monitor 126 * mode even in the presence of other (regulatory) restrictions, 127 * even if it is otherwise disabled. 128 * @IEEE80211_CHAN_ALLOW_6GHZ_VLP_AP: Allow using this channel for AP operation 129 * with very low power (VLP), even if otherwise set to NO_IR. 130 */ 131 enum ieee80211_channel_flags { 132 IEEE80211_CHAN_DISABLED = BIT(0), 133 IEEE80211_CHAN_NO_IR = BIT(1), 134 IEEE80211_CHAN_PSD = BIT(2), 135 IEEE80211_CHAN_RADAR = BIT(3), 136 IEEE80211_CHAN_NO_HT40PLUS = BIT(4), 137 IEEE80211_CHAN_NO_HT40MINUS = BIT(5), 138 IEEE80211_CHAN_NO_OFDM = BIT(6), 139 IEEE80211_CHAN_NO_80MHZ = BIT(7), 140 IEEE80211_CHAN_NO_160MHZ = BIT(8), 141 IEEE80211_CHAN_INDOOR_ONLY = BIT(9), 142 IEEE80211_CHAN_IR_CONCURRENT = BIT(10), 143 IEEE80211_CHAN_NO_20MHZ = BIT(11), 144 IEEE80211_CHAN_NO_10MHZ = BIT(12), 145 IEEE80211_CHAN_NO_HE = BIT(13), 146 IEEE80211_CHAN_1MHZ = BIT(14), 147 IEEE80211_CHAN_2MHZ = BIT(15), 148 IEEE80211_CHAN_4MHZ = BIT(16), 149 IEEE80211_CHAN_8MHZ = BIT(17), 150 IEEE80211_CHAN_16MHZ = BIT(18), 151 IEEE80211_CHAN_NO_320MHZ = BIT(19), 152 IEEE80211_CHAN_NO_EHT = BIT(20), 153 IEEE80211_CHAN_DFS_CONCURRENT = BIT(21), 154 IEEE80211_CHAN_NO_6GHZ_VLP_CLIENT = BIT(22), 155 IEEE80211_CHAN_NO_6GHZ_AFC_CLIENT = BIT(23), 156 IEEE80211_CHAN_CAN_MONITOR = BIT(24), 157 IEEE80211_CHAN_ALLOW_6GHZ_VLP_AP = BIT(25), 158 }; 159 160 #define IEEE80211_CHAN_NO_HT40 \ 161 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 162 163 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000 164 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000) 165 166 /** 167 * struct ieee80211_channel - channel definition 168 * 169 * This structure describes a single channel for use 170 * with cfg80211. 171 * 172 * @center_freq: center frequency in MHz 173 * @freq_offset: offset from @center_freq, in KHz 174 * @hw_value: hardware-specific value for the channel 175 * @flags: channel flags from &enum ieee80211_channel_flags. 176 * @orig_flags: channel flags at registration time, used by regulatory 177 * code to support devices with additional restrictions 178 * @band: band this channel belongs to. 179 * @max_antenna_gain: maximum antenna gain in dBi 180 * @max_power: maximum transmission power (in dBm) 181 * @max_reg_power: maximum regulatory transmission power (in dBm) 182 * @beacon_found: helper to regulatory code to indicate when a beacon 183 * has been found on this channel. Use regulatory_hint_found_beacon() 184 * to enable this, this is useful only on 5 GHz band. 185 * @orig_mag: internal use 186 * @orig_mpwr: internal use 187 * @dfs_state: current state of this channel. Only relevant if radar is required 188 * on this channel. 189 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered. 190 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels. 191 * @psd: power spectral density (in dBm) 192 */ 193 struct ieee80211_channel { 194 enum nl80211_band band; 195 u32 center_freq; 196 u16 freq_offset; 197 u16 hw_value; 198 u32 flags; 199 int max_antenna_gain; 200 int max_power; 201 int max_reg_power; 202 bool beacon_found; 203 u32 orig_flags; 204 int orig_mag, orig_mpwr; 205 enum nl80211_dfs_state dfs_state; 206 unsigned long dfs_state_entered; 207 unsigned int dfs_cac_ms; 208 s8 psd; 209 }; 210 211 /** 212 * enum ieee80211_rate_flags - rate flags 213 * 214 * Hardware/specification flags for rates. These are structured 215 * in a way that allows using the same bitrate structure for 216 * different bands/PHY modes. 217 * 218 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short 219 * preamble on this bitrate; only relevant in 2.4GHz band and 220 * with CCK rates. 221 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate 222 * when used with 802.11a (on the 5 GHz band); filled by the 223 * core code when registering the wiphy. 224 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate 225 * when used with 802.11b (on the 2.4 GHz band); filled by the 226 * core code when registering the wiphy. 227 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate 228 * when used with 802.11g (on the 2.4 GHz band); filled by the 229 * core code when registering the wiphy. 230 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. 231 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode 232 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode 233 */ 234 enum ieee80211_rate_flags { 235 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0), 236 IEEE80211_RATE_MANDATORY_A = BIT(1), 237 IEEE80211_RATE_MANDATORY_B = BIT(2), 238 IEEE80211_RATE_MANDATORY_G = BIT(3), 239 IEEE80211_RATE_ERP_G = BIT(4), 240 IEEE80211_RATE_SUPPORTS_5MHZ = BIT(5), 241 IEEE80211_RATE_SUPPORTS_10MHZ = BIT(6), 242 }; 243 244 /** 245 * enum ieee80211_bss_type - BSS type filter 246 * 247 * @IEEE80211_BSS_TYPE_ESS: Infrastructure BSS 248 * @IEEE80211_BSS_TYPE_PBSS: Personal BSS 249 * @IEEE80211_BSS_TYPE_IBSS: Independent BSS 250 * @IEEE80211_BSS_TYPE_MBSS: Mesh BSS 251 * @IEEE80211_BSS_TYPE_ANY: Wildcard value for matching any BSS type 252 */ 253 enum ieee80211_bss_type { 254 IEEE80211_BSS_TYPE_ESS, 255 IEEE80211_BSS_TYPE_PBSS, 256 IEEE80211_BSS_TYPE_IBSS, 257 IEEE80211_BSS_TYPE_MBSS, 258 IEEE80211_BSS_TYPE_ANY 259 }; 260 261 /** 262 * enum ieee80211_privacy - BSS privacy filter 263 * 264 * @IEEE80211_PRIVACY_ON: privacy bit set 265 * @IEEE80211_PRIVACY_OFF: privacy bit clear 266 * @IEEE80211_PRIVACY_ANY: Wildcard value for matching any privacy setting 267 */ 268 enum ieee80211_privacy { 269 IEEE80211_PRIVACY_ON, 270 IEEE80211_PRIVACY_OFF, 271 IEEE80211_PRIVACY_ANY 272 }; 273 274 #define IEEE80211_PRIVACY(x) \ 275 ((x) ? IEEE80211_PRIVACY_ON : IEEE80211_PRIVACY_OFF) 276 277 /** 278 * struct ieee80211_rate - bitrate definition 279 * 280 * This structure describes a bitrate that an 802.11 PHY can 281 * operate with. The two values @hw_value and @hw_value_short 282 * are only for driver use when pointers to this structure are 283 * passed around. 284 * 285 * @flags: rate-specific flags from &enum ieee80211_rate_flags 286 * @bitrate: bitrate in units of 100 Kbps 287 * @hw_value: driver/hardware value for this rate 288 * @hw_value_short: driver/hardware value for this rate when 289 * short preamble is used 290 */ 291 struct ieee80211_rate { 292 u32 flags; 293 u16 bitrate; 294 u16 hw_value, hw_value_short; 295 }; 296 297 /** 298 * struct ieee80211_he_obss_pd - AP settings for spatial reuse 299 * 300 * @enable: is the feature enabled. 301 * @sr_ctrl: The SR Control field of SRP element. 302 * @non_srg_max_offset: non-SRG maximum tx power offset 303 * @min_offset: minimal tx power offset an associated station shall use 304 * @max_offset: maximum tx power offset an associated station shall use 305 * @bss_color_bitmap: bitmap that indicates the BSS color values used by 306 * members of the SRG 307 * @partial_bssid_bitmap: bitmap that indicates the partial BSSID values 308 * used by members of the SRG 309 */ 310 struct ieee80211_he_obss_pd { 311 bool enable; 312 u8 sr_ctrl; 313 u8 non_srg_max_offset; 314 u8 min_offset; 315 u8 max_offset; 316 u8 bss_color_bitmap[8]; 317 u8 partial_bssid_bitmap[8]; 318 }; 319 320 /** 321 * struct cfg80211_he_bss_color - AP settings for BSS coloring 322 * 323 * @color: the current color. 324 * @enabled: HE BSS color is used 325 * @partial: define the AID equation. 326 */ 327 struct cfg80211_he_bss_color { 328 u8 color; 329 bool enabled; 330 bool partial; 331 }; 332 333 /** 334 * struct ieee80211_sta_ht_cap - STA's HT capabilities 335 * 336 * This structure describes most essential parameters needed 337 * to describe 802.11n HT capabilities for an STA. 338 * 339 * @ht_supported: is HT supported by the STA 340 * @cap: HT capabilities map as described in 802.11n spec 341 * @ampdu_factor: Maximum A-MPDU length factor 342 * @ampdu_density: Minimum A-MPDU spacing 343 * @mcs: Supported MCS rates 344 */ 345 struct ieee80211_sta_ht_cap { 346 u16 cap; /* use IEEE80211_HT_CAP_ */ 347 bool ht_supported; 348 u8 ampdu_factor; 349 u8 ampdu_density; 350 struct ieee80211_mcs_info mcs; 351 }; 352 353 /** 354 * struct ieee80211_sta_vht_cap - STA's VHT capabilities 355 * 356 * This structure describes most essential parameters needed 357 * to describe 802.11ac VHT capabilities for an STA. 358 * 359 * @vht_supported: is VHT supported by the STA 360 * @cap: VHT capabilities map as described in 802.11ac spec 361 * @vht_mcs: Supported VHT MCS rates 362 */ 363 struct ieee80211_sta_vht_cap { 364 bool vht_supported; 365 u32 cap; /* use IEEE80211_VHT_CAP_ */ 366 struct ieee80211_vht_mcs_info vht_mcs; 367 }; 368 369 #define IEEE80211_HE_PPE_THRES_MAX_LEN 25 370 371 /** 372 * struct ieee80211_sta_he_cap - STA's HE capabilities 373 * 374 * This structure describes most essential parameters needed 375 * to describe 802.11ax HE capabilities for a STA. 376 * 377 * @has_he: true iff HE data is valid. 378 * @he_cap_elem: Fixed portion of the HE capabilities element. 379 * @he_mcs_nss_supp: The supported NSS/MCS combinations. 380 * @ppe_thres: Holds the PPE Thresholds data. 381 */ 382 struct ieee80211_sta_he_cap { 383 bool has_he; 384 struct ieee80211_he_cap_elem he_cap_elem; 385 struct ieee80211_he_mcs_nss_supp he_mcs_nss_supp; 386 u8 ppe_thres[IEEE80211_HE_PPE_THRES_MAX_LEN]; 387 }; 388 389 /** 390 * struct ieee80211_eht_mcs_nss_supp - EHT max supported NSS per MCS 391 * 392 * See P802.11be_D1.3 Table 9-401k - "Subfields of the Supported EHT-MCS 393 * and NSS Set field" 394 * 395 * @only_20mhz: MCS/NSS support for 20 MHz-only STA. 396 * @bw: MCS/NSS support for 80, 160 and 320 MHz 397 * @bw._80: MCS/NSS support for BW <= 80 MHz 398 * @bw._160: MCS/NSS support for BW = 160 MHz 399 * @bw._320: MCS/NSS support for BW = 320 MHz 400 */ 401 struct ieee80211_eht_mcs_nss_supp { 402 union { 403 struct ieee80211_eht_mcs_nss_supp_20mhz_only only_20mhz; 404 struct { 405 struct ieee80211_eht_mcs_nss_supp_bw _80; 406 struct ieee80211_eht_mcs_nss_supp_bw _160; 407 struct ieee80211_eht_mcs_nss_supp_bw _320; 408 } __packed bw; 409 } __packed; 410 } __packed; 411 412 #define IEEE80211_EHT_PPE_THRES_MAX_LEN 32 413 414 /** 415 * struct ieee80211_sta_eht_cap - STA's EHT capabilities 416 * 417 * This structure describes most essential parameters needed 418 * to describe 802.11be EHT capabilities for a STA. 419 * 420 * @has_eht: true iff EHT data is valid. 421 * @eht_cap_elem: Fixed portion of the eht capabilities element. 422 * @eht_mcs_nss_supp: The supported NSS/MCS combinations. 423 * @eht_ppe_thres: Holds the PPE Thresholds data. 424 */ 425 struct ieee80211_sta_eht_cap { 426 bool has_eht; 427 struct ieee80211_eht_cap_elem_fixed eht_cap_elem; 428 struct ieee80211_eht_mcs_nss_supp eht_mcs_nss_supp; 429 u8 eht_ppe_thres[IEEE80211_EHT_PPE_THRES_MAX_LEN]; 430 }; 431 432 /* sparse defines __CHECKER__; see Documentation/dev-tools/sparse.rst */ 433 #ifdef __CHECKER__ 434 /* 435 * This is used to mark the sband->iftype_data pointer which is supposed 436 * to be an array with special access semantics (per iftype), but a lot 437 * of code got it wrong in the past, so with this marking sparse will be 438 * noisy when the pointer is used directly. 439 */ 440 # define __iftd __attribute__((noderef, address_space(__iftype_data))) 441 #else 442 # define __iftd 443 #endif /* __CHECKER__ */ 444 445 /** 446 * struct ieee80211_sband_iftype_data - sband data per interface type 447 * 448 * This structure encapsulates sband data that is relevant for the 449 * interface types defined in @types_mask. Each type in the 450 * @types_mask must be unique across all instances of iftype_data. 451 * 452 * @types_mask: interface types mask 453 * @he_cap: holds the HE capabilities 454 * @he_6ghz_capa: HE 6 GHz capabilities, must be filled in for a 455 * 6 GHz band channel (and 0 may be valid value). 456 * @eht_cap: STA's EHT capabilities 457 * @vendor_elems: vendor element(s) to advertise 458 * @vendor_elems.data: vendor element(s) data 459 * @vendor_elems.len: vendor element(s) length 460 */ 461 struct ieee80211_sband_iftype_data { 462 u16 types_mask; 463 struct ieee80211_sta_he_cap he_cap; 464 struct ieee80211_he_6ghz_capa he_6ghz_capa; 465 struct ieee80211_sta_eht_cap eht_cap; 466 struct { 467 const u8 *data; 468 unsigned int len; 469 } vendor_elems; 470 }; 471 472 /** 473 * enum ieee80211_edmg_bw_config - allowed channel bandwidth configurations 474 * 475 * @IEEE80211_EDMG_BW_CONFIG_4: 2.16GHz 476 * @IEEE80211_EDMG_BW_CONFIG_5: 2.16GHz and 4.32GHz 477 * @IEEE80211_EDMG_BW_CONFIG_6: 2.16GHz, 4.32GHz and 6.48GHz 478 * @IEEE80211_EDMG_BW_CONFIG_7: 2.16GHz, 4.32GHz, 6.48GHz and 8.64GHz 479 * @IEEE80211_EDMG_BW_CONFIG_8: 2.16GHz and 2.16GHz + 2.16GHz 480 * @IEEE80211_EDMG_BW_CONFIG_9: 2.16GHz, 4.32GHz and 2.16GHz + 2.16GHz 481 * @IEEE80211_EDMG_BW_CONFIG_10: 2.16GHz, 4.32GHz, 6.48GHz and 2.16GHz+2.16GHz 482 * @IEEE80211_EDMG_BW_CONFIG_11: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz and 483 * 2.16GHz+2.16GHz 484 * @IEEE80211_EDMG_BW_CONFIG_12: 2.16GHz, 2.16GHz + 2.16GHz and 485 * 4.32GHz + 4.32GHz 486 * @IEEE80211_EDMG_BW_CONFIG_13: 2.16GHz, 4.32GHz, 2.16GHz + 2.16GHz and 487 * 4.32GHz + 4.32GHz 488 * @IEEE80211_EDMG_BW_CONFIG_14: 2.16GHz, 4.32GHz, 6.48GHz, 2.16GHz + 2.16GHz 489 * and 4.32GHz + 4.32GHz 490 * @IEEE80211_EDMG_BW_CONFIG_15: 2.16GHz, 4.32GHz, 6.48GHz, 8.64GHz, 491 * 2.16GHz + 2.16GHz and 4.32GHz + 4.32GHz 492 */ 493 enum ieee80211_edmg_bw_config { 494 IEEE80211_EDMG_BW_CONFIG_4 = 4, 495 IEEE80211_EDMG_BW_CONFIG_5 = 5, 496 IEEE80211_EDMG_BW_CONFIG_6 = 6, 497 IEEE80211_EDMG_BW_CONFIG_7 = 7, 498 IEEE80211_EDMG_BW_CONFIG_8 = 8, 499 IEEE80211_EDMG_BW_CONFIG_9 = 9, 500 IEEE80211_EDMG_BW_CONFIG_10 = 10, 501 IEEE80211_EDMG_BW_CONFIG_11 = 11, 502 IEEE80211_EDMG_BW_CONFIG_12 = 12, 503 IEEE80211_EDMG_BW_CONFIG_13 = 13, 504 IEEE80211_EDMG_BW_CONFIG_14 = 14, 505 IEEE80211_EDMG_BW_CONFIG_15 = 15, 506 }; 507 508 /** 509 * struct ieee80211_edmg - EDMG configuration 510 * 511 * This structure describes most essential parameters needed 512 * to describe 802.11ay EDMG configuration 513 * 514 * @channels: bitmap that indicates the 2.16 GHz channel(s) 515 * that are allowed to be used for transmissions. 516 * Bit 0 indicates channel 1, bit 1 indicates channel 2, etc. 517 * Set to 0 indicate EDMG not supported. 518 * @bw_config: Channel BW Configuration subfield encodes 519 * the allowed channel bandwidth configurations 520 */ 521 struct ieee80211_edmg { 522 u8 channels; 523 enum ieee80211_edmg_bw_config bw_config; 524 }; 525 526 /** 527 * struct ieee80211_sta_s1g_cap - STA's S1G capabilities 528 * 529 * This structure describes most essential parameters needed 530 * to describe 802.11ah S1G capabilities for a STA. 531 * 532 * @s1g: is STA an S1G STA 533 * @cap: S1G capabilities information 534 * @nss_mcs: Supported NSS MCS set 535 */ 536 struct ieee80211_sta_s1g_cap { 537 bool s1g; 538 u8 cap[10]; /* use S1G_CAPAB_ */ 539 u8 nss_mcs[5]; 540 }; 541 542 /** 543 * struct ieee80211_supported_band - frequency band definition 544 * 545 * This structure describes a frequency band a wiphy 546 * is able to operate in. 547 * 548 * @channels: Array of channels the hardware can operate with 549 * in this band. 550 * @band: the band this structure represents 551 * @n_channels: Number of channels in @channels 552 * @bitrates: Array of bitrates the hardware can operate with 553 * in this band. Must be sorted to give a valid "supported 554 * rates" IE, i.e. CCK rates first, then OFDM. 555 * @n_bitrates: Number of bitrates in @bitrates 556 * @ht_cap: HT capabilities in this band 557 * @vht_cap: VHT capabilities in this band 558 * @s1g_cap: S1G capabilities in this band 559 * @edmg_cap: EDMG capabilities in this band 560 * @s1g_cap: S1G capabilities in this band (S1B band only, of course) 561 * @n_iftype_data: number of iftype data entries 562 * @iftype_data: interface type data entries. Note that the bits in 563 * @types_mask inside this structure cannot overlap (i.e. only 564 * one occurrence of each type is allowed across all instances of 565 * iftype_data). 566 */ 567 struct ieee80211_supported_band { 568 struct ieee80211_channel *channels; 569 struct ieee80211_rate *bitrates; 570 enum nl80211_band band; 571 int n_channels; 572 int n_bitrates; 573 struct ieee80211_sta_ht_cap ht_cap; 574 struct ieee80211_sta_vht_cap vht_cap; 575 struct ieee80211_sta_s1g_cap s1g_cap; 576 struct ieee80211_edmg edmg_cap; 577 u16 n_iftype_data; 578 const struct ieee80211_sband_iftype_data __iftd *iftype_data; 579 }; 580 581 /** 582 * _ieee80211_set_sband_iftype_data - set sband iftype data array 583 * @sband: the sband to initialize 584 * @iftd: the iftype data array pointer 585 * @n_iftd: the length of the iftype data array 586 * 587 * Set the sband iftype data array; use this where the length cannot 588 * be derived from the ARRAY_SIZE() of the argument, but prefer 589 * ieee80211_set_sband_iftype_data() where it can be used. 590 */ 591 static inline void 592 _ieee80211_set_sband_iftype_data(struct ieee80211_supported_band *sband, 593 const struct ieee80211_sband_iftype_data *iftd, 594 u16 n_iftd) 595 { 596 sband->iftype_data = (const void __iftd __force *)iftd; 597 sband->n_iftype_data = n_iftd; 598 } 599 600 /** 601 * ieee80211_set_sband_iftype_data - set sband iftype data array 602 * @sband: the sband to initialize 603 * @iftd: the iftype data array 604 */ 605 #define ieee80211_set_sband_iftype_data(sband, iftd) \ 606 _ieee80211_set_sband_iftype_data(sband, iftd, ARRAY_SIZE(iftd)) 607 608 /** 609 * for_each_sband_iftype_data - iterate sband iftype data entries 610 * @sband: the sband whose iftype_data array to iterate 611 * @i: iterator counter 612 * @iftd: iftype data pointer to set 613 */ 614 #define for_each_sband_iftype_data(sband, i, iftd) \ 615 for (i = 0, iftd = (const void __force *)&(sband)->iftype_data[i]; \ 616 i < (sband)->n_iftype_data; \ 617 i++, iftd = (const void __force *)&(sband)->iftype_data[i]) 618 619 /** 620 * ieee80211_get_sband_iftype_data - return sband data for a given iftype 621 * @sband: the sband to search for the STA on 622 * @iftype: enum nl80211_iftype 623 * 624 * Return: pointer to struct ieee80211_sband_iftype_data, or NULL is none found 625 */ 626 static inline const struct ieee80211_sband_iftype_data * 627 ieee80211_get_sband_iftype_data(const struct ieee80211_supported_band *sband, 628 u8 iftype) 629 { 630 const struct ieee80211_sband_iftype_data *data; 631 int i; 632 633 if (WARN_ON(iftype >= NL80211_IFTYPE_MAX)) 634 return NULL; 635 636 if (iftype == NL80211_IFTYPE_AP_VLAN) 637 iftype = NL80211_IFTYPE_AP; 638 639 for_each_sband_iftype_data(sband, i, data) { 640 if (data->types_mask & BIT(iftype)) 641 return data; 642 } 643 644 return NULL; 645 } 646 647 /** 648 * ieee80211_get_he_iftype_cap - return HE capabilities for an sband's iftype 649 * @sband: the sband to search for the iftype on 650 * @iftype: enum nl80211_iftype 651 * 652 * Return: pointer to the struct ieee80211_sta_he_cap, or NULL is none found 653 */ 654 static inline const struct ieee80211_sta_he_cap * 655 ieee80211_get_he_iftype_cap(const struct ieee80211_supported_band *sband, 656 u8 iftype) 657 { 658 const struct ieee80211_sband_iftype_data *data = 659 ieee80211_get_sband_iftype_data(sband, iftype); 660 661 if (data && data->he_cap.has_he) 662 return &data->he_cap; 663 664 return NULL; 665 } 666 667 /** 668 * ieee80211_get_he_6ghz_capa - return HE 6 GHz capabilities 669 * @sband: the sband to search for the STA on 670 * @iftype: the iftype to search for 671 * 672 * Return: the 6GHz capabilities 673 */ 674 static inline __le16 675 ieee80211_get_he_6ghz_capa(const struct ieee80211_supported_band *sband, 676 enum nl80211_iftype iftype) 677 { 678 const struct ieee80211_sband_iftype_data *data = 679 ieee80211_get_sband_iftype_data(sband, iftype); 680 681 if (WARN_ON(!data || !data->he_cap.has_he)) 682 return 0; 683 684 return data->he_6ghz_capa.capa; 685 } 686 687 /** 688 * ieee80211_get_eht_iftype_cap - return ETH capabilities for an sband's iftype 689 * @sband: the sband to search for the iftype on 690 * @iftype: enum nl80211_iftype 691 * 692 * Return: pointer to the struct ieee80211_sta_eht_cap, or NULL is none found 693 */ 694 static inline const struct ieee80211_sta_eht_cap * 695 ieee80211_get_eht_iftype_cap(const struct ieee80211_supported_band *sband, 696 enum nl80211_iftype iftype) 697 { 698 const struct ieee80211_sband_iftype_data *data = 699 ieee80211_get_sband_iftype_data(sband, iftype); 700 701 if (data && data->eht_cap.has_eht) 702 return &data->eht_cap; 703 704 return NULL; 705 } 706 707 /** 708 * wiphy_read_of_freq_limits - read frequency limits from device tree 709 * 710 * @wiphy: the wireless device to get extra limits for 711 * 712 * Some devices may have extra limitations specified in DT. This may be useful 713 * for chipsets that normally support more bands but are limited due to board 714 * design (e.g. by antennas or external power amplifier). 715 * 716 * This function reads info from DT and uses it to *modify* channels (disable 717 * unavailable ones). It's usually a *bad* idea to use it in drivers with 718 * shared channel data as DT limitations are device specific. You should make 719 * sure to call it only if channels in wiphy are copied and can be modified 720 * without affecting other devices. 721 * 722 * As this function access device node it has to be called after set_wiphy_dev. 723 * It also modifies channels so they have to be set first. 724 * If using this helper, call it before wiphy_register(). 725 */ 726 #ifdef CONFIG_OF 727 void wiphy_read_of_freq_limits(struct wiphy *wiphy); 728 #else /* CONFIG_OF */ 729 static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy) 730 { 731 } 732 #endif /* !CONFIG_OF */ 733 734 735 /* 736 * Wireless hardware/device configuration structures and methods 737 */ 738 739 /** 740 * DOC: Actions and configuration 741 * 742 * Each wireless device and each virtual interface offer a set of configuration 743 * operations and other actions that are invoked by userspace. Each of these 744 * actions is described in the operations structure, and the parameters these 745 * operations use are described separately. 746 * 747 * Additionally, some operations are asynchronous and expect to get status 748 * information via some functions that drivers need to call. 749 * 750 * Scanning and BSS list handling with its associated functionality is described 751 * in a separate chapter. 752 */ 753 754 #define VHT_MUMIMO_GROUPS_DATA_LEN (WLAN_MEMBERSHIP_LEN +\ 755 WLAN_USER_POSITION_LEN) 756 757 /** 758 * struct vif_params - describes virtual interface parameters 759 * @flags: monitor interface flags, unchanged if 0, otherwise 760 * %MONITOR_FLAG_CHANGED will be set 761 * @use_4addr: use 4-address frames 762 * @macaddr: address to use for this virtual interface. 763 * If this parameter is set to zero address the driver may 764 * determine the address as needed. 765 * This feature is only fully supported by drivers that enable the 766 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating 767 ** only p2p devices with specified MAC. 768 * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets 769 * belonging to that MU-MIMO groupID; %NULL if not changed 770 * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring 771 * MU-MIMO packets going to the specified station; %NULL if not changed 772 */ 773 struct vif_params { 774 u32 flags; 775 int use_4addr; 776 u8 macaddr[ETH_ALEN]; 777 const u8 *vht_mumimo_groups; 778 const u8 *vht_mumimo_follow_addr; 779 }; 780 781 /** 782 * struct key_params - key information 783 * 784 * Information about a key 785 * 786 * @key: key material 787 * @key_len: length of key material 788 * @cipher: cipher suite selector 789 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 790 * with the get_key() callback, must be in little endian, 791 * length given by @seq_len. 792 * @seq_len: length of @seq. 793 * @vlan_id: vlan_id for VLAN group key (if nonzero) 794 * @mode: key install mode (RX_TX, NO_TX or SET_TX) 795 */ 796 struct key_params { 797 const u8 *key; 798 const u8 *seq; 799 int key_len; 800 int seq_len; 801 u16 vlan_id; 802 u32 cipher; 803 enum nl80211_key_mode mode; 804 }; 805 806 /** 807 * struct cfg80211_chan_def - channel definition 808 * @chan: the (control) channel 809 * @width: channel width 810 * @center_freq1: center frequency of first segment 811 * @center_freq2: center frequency of second segment 812 * (only with 80+80 MHz) 813 * @edmg: define the EDMG channels configuration. 814 * If edmg is requested (i.e. the .channels member is non-zero), 815 * chan will define the primary channel and all other 816 * parameters are ignored. 817 * @freq1_offset: offset from @center_freq1, in KHz 818 * @punctured: mask of the punctured 20 MHz subchannels, with 819 * bits turned on being disabled (punctured); numbered 820 * from lower to higher frequency (like in the spec) 821 */ 822 struct cfg80211_chan_def { 823 struct ieee80211_channel *chan; 824 enum nl80211_chan_width width; 825 u32 center_freq1; 826 u32 center_freq2; 827 struct ieee80211_edmg edmg; 828 u16 freq1_offset; 829 u16 punctured; 830 }; 831 832 /* 833 * cfg80211_bitrate_mask - masks for bitrate control 834 */ 835 struct cfg80211_bitrate_mask { 836 struct { 837 u32 legacy; 838 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN]; 839 u16 vht_mcs[NL80211_VHT_NSS_MAX]; 840 u16 he_mcs[NL80211_HE_NSS_MAX]; 841 enum nl80211_txrate_gi gi; 842 enum nl80211_he_gi he_gi; 843 enum nl80211_he_ltf he_ltf; 844 } control[NUM_NL80211_BANDS]; 845 }; 846 847 848 /** 849 * struct cfg80211_tid_cfg - TID specific configuration 850 * @config_override: Flag to notify driver to reset TID configuration 851 * of the peer. 852 * @tids: bitmap of TIDs to modify 853 * @mask: bitmap of attributes indicating which parameter changed, 854 * similar to &nl80211_tid_config_supp. 855 * @noack: noack configuration value for the TID 856 * @retry_long: retry count value 857 * @retry_short: retry count value 858 * @ampdu: Enable/Disable MPDU aggregation 859 * @rtscts: Enable/Disable RTS/CTS 860 * @amsdu: Enable/Disable MSDU aggregation 861 * @txrate_type: Tx bitrate mask type 862 * @txrate_mask: Tx bitrate to be applied for the TID 863 */ 864 struct cfg80211_tid_cfg { 865 bool config_override; 866 u8 tids; 867 u64 mask; 868 enum nl80211_tid_config noack; 869 u8 retry_long, retry_short; 870 enum nl80211_tid_config ampdu; 871 enum nl80211_tid_config rtscts; 872 enum nl80211_tid_config amsdu; 873 enum nl80211_tx_rate_setting txrate_type; 874 struct cfg80211_bitrate_mask txrate_mask; 875 }; 876 877 /** 878 * struct cfg80211_tid_config - TID configuration 879 * @peer: Station's MAC address 880 * @n_tid_conf: Number of TID specific configurations to be applied 881 * @tid_conf: Configuration change info 882 */ 883 struct cfg80211_tid_config { 884 const u8 *peer; 885 u32 n_tid_conf; 886 struct cfg80211_tid_cfg tid_conf[] __counted_by(n_tid_conf); 887 }; 888 889 /** 890 * struct cfg80211_fils_aad - FILS AAD data 891 * @macaddr: STA MAC address 892 * @kek: FILS KEK 893 * @kek_len: FILS KEK length 894 * @snonce: STA Nonce 895 * @anonce: AP Nonce 896 */ 897 struct cfg80211_fils_aad { 898 const u8 *macaddr; 899 const u8 *kek; 900 u8 kek_len; 901 const u8 *snonce; 902 const u8 *anonce; 903 }; 904 905 /** 906 * struct cfg80211_set_hw_timestamp - enable/disable HW timestamping 907 * @macaddr: peer MAC address. NULL to enable/disable HW timestamping for all 908 * addresses. 909 * @enable: if set, enable HW timestamping for the specified MAC address. 910 * Otherwise disable HW timestamping for the specified MAC address. 911 */ 912 struct cfg80211_set_hw_timestamp { 913 const u8 *macaddr; 914 bool enable; 915 }; 916 917 /** 918 * cfg80211_get_chandef_type - return old channel type from chandef 919 * @chandef: the channel definition 920 * 921 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given 922 * chandef, which must have a bandwidth allowing this conversion. 923 */ 924 static inline enum nl80211_channel_type 925 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef) 926 { 927 switch (chandef->width) { 928 case NL80211_CHAN_WIDTH_20_NOHT: 929 return NL80211_CHAN_NO_HT; 930 case NL80211_CHAN_WIDTH_20: 931 return NL80211_CHAN_HT20; 932 case NL80211_CHAN_WIDTH_40: 933 if (chandef->center_freq1 > chandef->chan->center_freq) 934 return NL80211_CHAN_HT40PLUS; 935 return NL80211_CHAN_HT40MINUS; 936 default: 937 WARN_ON(1); 938 return NL80211_CHAN_NO_HT; 939 } 940 } 941 942 /** 943 * cfg80211_chandef_create - create channel definition using channel type 944 * @chandef: the channel definition struct to fill 945 * @channel: the control channel 946 * @chantype: the channel type 947 * 948 * Given a channel type, create a channel definition. 949 */ 950 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, 951 struct ieee80211_channel *channel, 952 enum nl80211_channel_type chantype); 953 954 /** 955 * cfg80211_chandef_identical - check if two channel definitions are identical 956 * @chandef1: first channel definition 957 * @chandef2: second channel definition 958 * 959 * Return: %true if the channels defined by the channel definitions are 960 * identical, %false otherwise. 961 */ 962 static inline bool 963 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1, 964 const struct cfg80211_chan_def *chandef2) 965 { 966 return (chandef1->chan == chandef2->chan && 967 chandef1->width == chandef2->width && 968 chandef1->center_freq1 == chandef2->center_freq1 && 969 chandef1->freq1_offset == chandef2->freq1_offset && 970 chandef1->center_freq2 == chandef2->center_freq2 && 971 chandef1->punctured == chandef2->punctured); 972 } 973 974 /** 975 * cfg80211_chandef_is_edmg - check if chandef represents an EDMG channel 976 * 977 * @chandef: the channel definition 978 * 979 * Return: %true if EDMG defined, %false otherwise. 980 */ 981 static inline bool 982 cfg80211_chandef_is_edmg(const struct cfg80211_chan_def *chandef) 983 { 984 return chandef->edmg.channels || chandef->edmg.bw_config; 985 } 986 987 /** 988 * cfg80211_chandef_compatible - check if two channel definitions are compatible 989 * @chandef1: first channel definition 990 * @chandef2: second channel definition 991 * 992 * Return: %NULL if the given channel definitions are incompatible, 993 * chandef1 or chandef2 otherwise. 994 */ 995 const struct cfg80211_chan_def * 996 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, 997 const struct cfg80211_chan_def *chandef2); 998 999 /** 1000 * nl80211_chan_width_to_mhz - get the channel width in MHz 1001 * @chan_width: the channel width from &enum nl80211_chan_width 1002 * 1003 * Return: channel width in MHz if the chan_width from &enum nl80211_chan_width 1004 * is valid. -1 otherwise. 1005 */ 1006 int nl80211_chan_width_to_mhz(enum nl80211_chan_width chan_width); 1007 1008 /** 1009 * cfg80211_chandef_valid - check if a channel definition is valid 1010 * @chandef: the channel definition to check 1011 * Return: %true if the channel definition is valid. %false otherwise. 1012 */ 1013 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef); 1014 1015 /** 1016 * cfg80211_chandef_usable - check if secondary channels can be used 1017 * @wiphy: the wiphy to validate against 1018 * @chandef: the channel definition to check 1019 * @prohibited_flags: the regulatory channel flags that must not be set 1020 * Return: %true if secondary channels are usable. %false otherwise. 1021 */ 1022 bool cfg80211_chandef_usable(struct wiphy *wiphy, 1023 const struct cfg80211_chan_def *chandef, 1024 u32 prohibited_flags); 1025 1026 /** 1027 * cfg80211_chandef_dfs_required - checks if radar detection is required 1028 * @wiphy: the wiphy to validate against 1029 * @chandef: the channel definition to check 1030 * @iftype: the interface type as specified in &enum nl80211_iftype 1031 * Returns: 1032 * 1 if radar detection is required, 0 if it is not, < 0 on error 1033 */ 1034 int cfg80211_chandef_dfs_required(struct wiphy *wiphy, 1035 const struct cfg80211_chan_def *chandef, 1036 enum nl80211_iftype iftype); 1037 1038 /** 1039 * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable and we 1040 * can/need start CAC on such channel 1041 * @wiphy: the wiphy to validate against 1042 * @chandef: the channel definition to check 1043 * 1044 * Return: true if all channels available and at least 1045 * one channel requires CAC (NL80211_DFS_USABLE) 1046 */ 1047 bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy, 1048 const struct cfg80211_chan_def *chandef); 1049 1050 /** 1051 * cfg80211_chandef_dfs_cac_time - get the DFS CAC time (in ms) for given 1052 * channel definition 1053 * @wiphy: the wiphy to validate against 1054 * @chandef: the channel definition to check 1055 * 1056 * Returns: DFS CAC time (in ms) which applies for this channel definition 1057 */ 1058 unsigned int 1059 cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy, 1060 const struct cfg80211_chan_def *chandef); 1061 1062 /** 1063 * cfg80211_chandef_primary - calculate primary 40/80/160 MHz freq 1064 * @chandef: chandef to calculate for 1065 * @primary_chan_width: primary channel width to calculate center for 1066 * @punctured: punctured sub-channel bitmap, will be recalculated 1067 * according to the new bandwidth, can be %NULL 1068 * 1069 * Returns: the primary 40/80/160 MHz channel center frequency, or -1 1070 * for errors, updating the punctured bitmap 1071 */ 1072 int cfg80211_chandef_primary(const struct cfg80211_chan_def *chandef, 1073 enum nl80211_chan_width primary_chan_width, 1074 u16 *punctured); 1075 1076 /** 1077 * nl80211_send_chandef - sends the channel definition. 1078 * @msg: the msg to send channel definition 1079 * @chandef: the channel definition to check 1080 * 1081 * Returns: 0 if sent the channel definition to msg, < 0 on error 1082 **/ 1083 int nl80211_send_chandef(struct sk_buff *msg, const struct cfg80211_chan_def *chandef); 1084 1085 /** 1086 * ieee80211_chanwidth_rate_flags - return rate flags for channel width 1087 * @width: the channel width of the channel 1088 * 1089 * In some channel types, not all rates may be used - for example CCK 1090 * rates may not be used in 5/10 MHz channels. 1091 * 1092 * Returns: rate flags which apply for this channel width 1093 */ 1094 static inline enum ieee80211_rate_flags 1095 ieee80211_chanwidth_rate_flags(enum nl80211_chan_width width) 1096 { 1097 switch (width) { 1098 case NL80211_CHAN_WIDTH_5: 1099 return IEEE80211_RATE_SUPPORTS_5MHZ; 1100 case NL80211_CHAN_WIDTH_10: 1101 return IEEE80211_RATE_SUPPORTS_10MHZ; 1102 default: 1103 break; 1104 } 1105 return 0; 1106 } 1107 1108 /** 1109 * ieee80211_chandef_rate_flags - returns rate flags for a channel 1110 * @chandef: channel definition for the channel 1111 * 1112 * See ieee80211_chanwidth_rate_flags(). 1113 * 1114 * Returns: rate flags which apply for this channel 1115 */ 1116 static inline enum ieee80211_rate_flags 1117 ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef) 1118 { 1119 return ieee80211_chanwidth_rate_flags(chandef->width); 1120 } 1121 1122 /** 1123 * ieee80211_chandef_max_power - maximum transmission power for the chandef 1124 * 1125 * In some regulations, the transmit power may depend on the configured channel 1126 * bandwidth which may be defined as dBm/MHz. This function returns the actual 1127 * max_power for non-standard (20 MHz) channels. 1128 * 1129 * @chandef: channel definition for the channel 1130 * 1131 * Returns: maximum allowed transmission power in dBm for the chandef 1132 */ 1133 static inline int 1134 ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) 1135 { 1136 switch (chandef->width) { 1137 case NL80211_CHAN_WIDTH_5: 1138 return min(chandef->chan->max_reg_power - 6, 1139 chandef->chan->max_power); 1140 case NL80211_CHAN_WIDTH_10: 1141 return min(chandef->chan->max_reg_power - 3, 1142 chandef->chan->max_power); 1143 default: 1144 break; 1145 } 1146 return chandef->chan->max_power; 1147 } 1148 1149 /** 1150 * cfg80211_any_usable_channels - check for usable channels 1151 * @wiphy: the wiphy to check for 1152 * @band_mask: which bands to check on 1153 * @prohibited_flags: which channels to not consider usable, 1154 * %IEEE80211_CHAN_DISABLED is always taken into account 1155 * 1156 * Return: %true if usable channels found, %false otherwise 1157 */ 1158 bool cfg80211_any_usable_channels(struct wiphy *wiphy, 1159 unsigned long band_mask, 1160 u32 prohibited_flags); 1161 1162 /** 1163 * enum survey_info_flags - survey information flags 1164 * 1165 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 1166 * @SURVEY_INFO_IN_USE: channel is currently being used 1167 * @SURVEY_INFO_TIME: active time (in ms) was filled in 1168 * @SURVEY_INFO_TIME_BUSY: busy time was filled in 1169 * @SURVEY_INFO_TIME_EXT_BUSY: extension channel busy time was filled in 1170 * @SURVEY_INFO_TIME_RX: receive time was filled in 1171 * @SURVEY_INFO_TIME_TX: transmit time was filled in 1172 * @SURVEY_INFO_TIME_SCAN: scan time was filled in 1173 * @SURVEY_INFO_TIME_BSS_RX: local BSS receive time was filled in 1174 * 1175 * Used by the driver to indicate which info in &struct survey_info 1176 * it has filled in during the get_survey(). 1177 */ 1178 enum survey_info_flags { 1179 SURVEY_INFO_NOISE_DBM = BIT(0), 1180 SURVEY_INFO_IN_USE = BIT(1), 1181 SURVEY_INFO_TIME = BIT(2), 1182 SURVEY_INFO_TIME_BUSY = BIT(3), 1183 SURVEY_INFO_TIME_EXT_BUSY = BIT(4), 1184 SURVEY_INFO_TIME_RX = BIT(5), 1185 SURVEY_INFO_TIME_TX = BIT(6), 1186 SURVEY_INFO_TIME_SCAN = BIT(7), 1187 SURVEY_INFO_TIME_BSS_RX = BIT(8), 1188 }; 1189 1190 /** 1191 * struct survey_info - channel survey response 1192 * 1193 * @channel: the channel this survey record reports, may be %NULL for a single 1194 * record to report global statistics 1195 * @filled: bitflag of flags from &enum survey_info_flags 1196 * @noise: channel noise in dBm. This and all following fields are 1197 * optional 1198 * @time: amount of time in ms the radio was turn on (on the channel) 1199 * @time_busy: amount of time the primary channel was sensed busy 1200 * @time_ext_busy: amount of time the extension channel was sensed busy 1201 * @time_rx: amount of time the radio spent receiving data 1202 * @time_tx: amount of time the radio spent transmitting data 1203 * @time_scan: amount of time the radio spent for scanning 1204 * @time_bss_rx: amount of time the radio spent receiving data on a local BSS 1205 * 1206 * Used by dump_survey() to report back per-channel survey information. 1207 * 1208 * This structure can later be expanded with things like 1209 * channel duty cycle etc. 1210 */ 1211 struct survey_info { 1212 struct ieee80211_channel *channel; 1213 u64 time; 1214 u64 time_busy; 1215 u64 time_ext_busy; 1216 u64 time_rx; 1217 u64 time_tx; 1218 u64 time_scan; 1219 u64 time_bss_rx; 1220 u32 filled; 1221 s8 noise; 1222 }; 1223 1224 #define CFG80211_MAX_NUM_AKM_SUITES 10 1225 1226 /** 1227 * struct cfg80211_crypto_settings - Crypto settings 1228 * @wpa_versions: indicates which, if any, WPA versions are enabled 1229 * (from enum nl80211_wpa_versions) 1230 * @cipher_group: group key cipher suite (or 0 if unset) 1231 * @n_ciphers_pairwise: number of AP supported unicast ciphers 1232 * @ciphers_pairwise: unicast key cipher suites 1233 * @n_akm_suites: number of AKM suites 1234 * @akm_suites: AKM suites 1235 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 1236 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 1237 * required to assume that the port is unauthorized until authorized by 1238 * user space. Otherwise, port is marked authorized by default. 1239 * @control_port_ethertype: the control port protocol that should be 1240 * allowed through even on unauthorized ports 1241 * @control_port_no_encrypt: TRUE to prevent encryption of control port 1242 * protocol frames. 1243 * @control_port_over_nl80211: TRUE if userspace expects to exchange control 1244 * port frames over NL80211 instead of the network interface. 1245 * @control_port_no_preauth: disables pre-auth rx over the nl80211 control 1246 * port for mac80211 1247 * @psk: PSK (for devices supporting 4-way-handshake offload) 1248 * @sae_pwd: password for SAE authentication (for devices supporting SAE 1249 * offload) 1250 * @sae_pwd_len: length of SAE password (for devices supporting SAE offload) 1251 * @sae_pwe: The mechanisms allowed for SAE PWE derivation: 1252 * 1253 * NL80211_SAE_PWE_UNSPECIFIED 1254 * Not-specified, used to indicate userspace did not specify any 1255 * preference. The driver should follow its internal policy in 1256 * such a scenario. 1257 * 1258 * NL80211_SAE_PWE_HUNT_AND_PECK 1259 * Allow hunting-and-pecking loop only 1260 * 1261 * NL80211_SAE_PWE_HASH_TO_ELEMENT 1262 * Allow hash-to-element only 1263 * 1264 * NL80211_SAE_PWE_BOTH 1265 * Allow either hunting-and-pecking loop or hash-to-element 1266 */ 1267 struct cfg80211_crypto_settings { 1268 u32 wpa_versions; 1269 u32 cipher_group; 1270 int n_ciphers_pairwise; 1271 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 1272 int n_akm_suites; 1273 u32 akm_suites[CFG80211_MAX_NUM_AKM_SUITES]; 1274 bool control_port; 1275 __be16 control_port_ethertype; 1276 bool control_port_no_encrypt; 1277 bool control_port_over_nl80211; 1278 bool control_port_no_preauth; 1279 const u8 *psk; 1280 const u8 *sae_pwd; 1281 u8 sae_pwd_len; 1282 enum nl80211_sae_pwe_mechanism sae_pwe; 1283 }; 1284 1285 /** 1286 * struct cfg80211_mbssid_config - AP settings for multi bssid 1287 * 1288 * @tx_wdev: pointer to the transmitted interface in the MBSSID set 1289 * @index: index of this AP in the multi bssid group. 1290 * @ema: set to true if the beacons should be sent out in EMA mode. 1291 */ 1292 struct cfg80211_mbssid_config { 1293 struct wireless_dev *tx_wdev; 1294 u8 index; 1295 bool ema; 1296 }; 1297 1298 /** 1299 * struct cfg80211_mbssid_elems - Multiple BSSID elements 1300 * 1301 * @cnt: Number of elements in array %elems. 1302 * 1303 * @elem: Array of multiple BSSID element(s) to be added into Beacon frames. 1304 * @elem.data: Data for multiple BSSID elements. 1305 * @elem.len: Length of data. 1306 */ 1307 struct cfg80211_mbssid_elems { 1308 u8 cnt; 1309 struct { 1310 const u8 *data; 1311 size_t len; 1312 } elem[] __counted_by(cnt); 1313 }; 1314 1315 /** 1316 * struct cfg80211_rnr_elems - Reduced neighbor report (RNR) elements 1317 * 1318 * @cnt: Number of elements in array %elems. 1319 * 1320 * @elem: Array of RNR element(s) to be added into Beacon frames. 1321 * @elem.data: Data for RNR elements. 1322 * @elem.len: Length of data. 1323 */ 1324 struct cfg80211_rnr_elems { 1325 u8 cnt; 1326 struct { 1327 const u8 *data; 1328 size_t len; 1329 } elem[] __counted_by(cnt); 1330 }; 1331 1332 /** 1333 * struct cfg80211_beacon_data - beacon data 1334 * @link_id: the link ID for the AP MLD link sending this beacon 1335 * @head: head portion of beacon (before TIM IE) 1336 * or %NULL if not changed 1337 * @tail: tail portion of beacon (after TIM IE) 1338 * or %NULL if not changed 1339 * @head_len: length of @head 1340 * @tail_len: length of @tail 1341 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL 1342 * @beacon_ies_len: length of beacon_ies in octets 1343 * @proberesp_ies: extra information element(s) to add into Probe Response 1344 * frames or %NULL 1345 * @proberesp_ies_len: length of proberesp_ies in octets 1346 * @assocresp_ies: extra information element(s) to add into (Re)Association 1347 * Response frames or %NULL 1348 * @assocresp_ies_len: length of assocresp_ies in octets 1349 * @probe_resp_len: length of probe response template (@probe_resp) 1350 * @probe_resp: probe response template (AP mode only) 1351 * @mbssid_ies: multiple BSSID elements 1352 * @rnr_ies: reduced neighbor report elements 1353 * @ftm_responder: enable FTM responder functionality; -1 for no change 1354 * (which also implies no change in LCI/civic location data) 1355 * @lci: Measurement Report element content, starting with Measurement Token 1356 * (measurement type 8) 1357 * @civicloc: Measurement Report element content, starting with Measurement 1358 * Token (measurement type 11) 1359 * @lci_len: LCI data length 1360 * @civicloc_len: Civic location data length 1361 * @he_bss_color: BSS Color settings 1362 * @he_bss_color_valid: indicates whether bss color 1363 * attribute is present in beacon data or not. 1364 */ 1365 struct cfg80211_beacon_data { 1366 unsigned int link_id; 1367 1368 const u8 *head, *tail; 1369 const u8 *beacon_ies; 1370 const u8 *proberesp_ies; 1371 const u8 *assocresp_ies; 1372 const u8 *probe_resp; 1373 const u8 *lci; 1374 const u8 *civicloc; 1375 struct cfg80211_mbssid_elems *mbssid_ies; 1376 struct cfg80211_rnr_elems *rnr_ies; 1377 s8 ftm_responder; 1378 1379 size_t head_len, tail_len; 1380 size_t beacon_ies_len; 1381 size_t proberesp_ies_len; 1382 size_t assocresp_ies_len; 1383 size_t probe_resp_len; 1384 size_t lci_len; 1385 size_t civicloc_len; 1386 struct cfg80211_he_bss_color he_bss_color; 1387 bool he_bss_color_valid; 1388 }; 1389 1390 struct mac_address { 1391 u8 addr[ETH_ALEN]; 1392 }; 1393 1394 /** 1395 * struct cfg80211_acl_data - Access control list data 1396 * 1397 * @acl_policy: ACL policy to be applied on the station's 1398 * entry specified by mac_addr 1399 * @n_acl_entries: Number of MAC address entries passed 1400 * @mac_addrs: List of MAC addresses of stations to be used for ACL 1401 */ 1402 struct cfg80211_acl_data { 1403 enum nl80211_acl_policy acl_policy; 1404 int n_acl_entries; 1405 1406 /* Keep it last */ 1407 struct mac_address mac_addrs[] __counted_by(n_acl_entries); 1408 }; 1409 1410 /** 1411 * struct cfg80211_fils_discovery - FILS discovery parameters from 1412 * IEEE Std 802.11ai-2016, Annex C.3 MIB detail. 1413 * 1414 * @update: Set to true if the feature configuration should be updated. 1415 * @min_interval: Minimum packet interval in TUs (0 - 10000) 1416 * @max_interval: Maximum packet interval in TUs (0 - 10000) 1417 * @tmpl_len: Template length 1418 * @tmpl: Template data for FILS discovery frame including the action 1419 * frame headers. 1420 */ 1421 struct cfg80211_fils_discovery { 1422 bool update; 1423 u32 min_interval; 1424 u32 max_interval; 1425 size_t tmpl_len; 1426 const u8 *tmpl; 1427 }; 1428 1429 /** 1430 * struct cfg80211_unsol_bcast_probe_resp - Unsolicited broadcast probe 1431 * response parameters in 6GHz. 1432 * 1433 * @update: Set to true if the feature configuration should be updated. 1434 * @interval: Packet interval in TUs. Maximum allowed is 20 TU, as mentioned 1435 * in IEEE P802.11ax/D6.0 26.17.2.3.2 - AP behavior for fast passive 1436 * scanning 1437 * @tmpl_len: Template length 1438 * @tmpl: Template data for probe response 1439 */ 1440 struct cfg80211_unsol_bcast_probe_resp { 1441 bool update; 1442 u32 interval; 1443 size_t tmpl_len; 1444 const u8 *tmpl; 1445 }; 1446 1447 /** 1448 * struct cfg80211_ap_settings - AP configuration 1449 * 1450 * Used to configure an AP interface. 1451 * 1452 * @chandef: defines the channel to use 1453 * @beacon: beacon data 1454 * @beacon_interval: beacon interval 1455 * @dtim_period: DTIM period 1456 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from 1457 * user space) 1458 * @ssid_len: length of @ssid 1459 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames 1460 * @crypto: crypto settings 1461 * @privacy: the BSS uses privacy 1462 * @auth_type: Authentication type (algorithm) 1463 * @inactivity_timeout: time in seconds to determine station's inactivity. 1464 * @p2p_ctwindow: P2P CT Window 1465 * @p2p_opp_ps: P2P opportunistic PS 1466 * @acl: ACL configuration used by the drivers which has support for 1467 * MAC address based access control 1468 * @pbss: If set, start as a PCP instead of AP. Relevant for DMG 1469 * networks. 1470 * @beacon_rate: bitrate to be used for beacons 1471 * @ht_cap: HT capabilities (or %NULL if HT isn't enabled) 1472 * @vht_cap: VHT capabilities (or %NULL if VHT isn't enabled) 1473 * @he_cap: HE capabilities (or %NULL if HE isn't enabled) 1474 * @eht_cap: EHT capabilities (or %NULL if EHT isn't enabled) 1475 * @eht_oper: EHT operation IE (or %NULL if EHT isn't enabled) 1476 * @ht_required: stations must support HT 1477 * @vht_required: stations must support VHT 1478 * @twt_responder: Enable Target Wait Time 1479 * @he_required: stations must support HE 1480 * @sae_h2e_required: stations must support direct H2E technique in SAE 1481 * @flags: flags, as defined in &enum nl80211_ap_settings_flags 1482 * @he_obss_pd: OBSS Packet Detection settings 1483 * @he_oper: HE operation IE (or %NULL if HE isn't enabled) 1484 * @fils_discovery: FILS discovery transmission parameters 1485 * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters 1486 * @mbssid_config: AP settings for multiple bssid 1487 */ 1488 struct cfg80211_ap_settings { 1489 struct cfg80211_chan_def chandef; 1490 1491 struct cfg80211_beacon_data beacon; 1492 1493 int beacon_interval, dtim_period; 1494 const u8 *ssid; 1495 size_t ssid_len; 1496 enum nl80211_hidden_ssid hidden_ssid; 1497 struct cfg80211_crypto_settings crypto; 1498 bool privacy; 1499 enum nl80211_auth_type auth_type; 1500 int inactivity_timeout; 1501 u8 p2p_ctwindow; 1502 bool p2p_opp_ps; 1503 const struct cfg80211_acl_data *acl; 1504 bool pbss; 1505 struct cfg80211_bitrate_mask beacon_rate; 1506 1507 const struct ieee80211_ht_cap *ht_cap; 1508 const struct ieee80211_vht_cap *vht_cap; 1509 const struct ieee80211_he_cap_elem *he_cap; 1510 const struct ieee80211_he_operation *he_oper; 1511 const struct ieee80211_eht_cap_elem *eht_cap; 1512 const struct ieee80211_eht_operation *eht_oper; 1513 bool ht_required, vht_required, he_required, sae_h2e_required; 1514 bool twt_responder; 1515 u32 flags; 1516 struct ieee80211_he_obss_pd he_obss_pd; 1517 struct cfg80211_fils_discovery fils_discovery; 1518 struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp; 1519 struct cfg80211_mbssid_config mbssid_config; 1520 }; 1521 1522 1523 /** 1524 * struct cfg80211_ap_update - AP configuration update 1525 * 1526 * Subset of &struct cfg80211_ap_settings, for updating a running AP. 1527 * 1528 * @beacon: beacon data 1529 * @fils_discovery: FILS discovery transmission parameters 1530 * @unsol_bcast_probe_resp: Unsolicited broadcast probe response parameters 1531 */ 1532 struct cfg80211_ap_update { 1533 struct cfg80211_beacon_data beacon; 1534 struct cfg80211_fils_discovery fils_discovery; 1535 struct cfg80211_unsol_bcast_probe_resp unsol_bcast_probe_resp; 1536 }; 1537 1538 /** 1539 * struct cfg80211_csa_settings - channel switch settings 1540 * 1541 * Used for channel switch 1542 * 1543 * @chandef: defines the channel to use after the switch 1544 * @beacon_csa: beacon data while performing the switch 1545 * @counter_offsets_beacon: offsets of the counters within the beacon (tail) 1546 * @counter_offsets_presp: offsets of the counters within the probe response 1547 * @n_counter_offsets_beacon: number of csa counters the beacon (tail) 1548 * @n_counter_offsets_presp: number of csa counters in the probe response 1549 * @beacon_after: beacon data to be used on the new channel 1550 * @radar_required: whether radar detection is required on the new channel 1551 * @block_tx: whether transmissions should be blocked while changing 1552 * @count: number of beacons until switch 1553 * @link_id: defines the link on which channel switch is expected during 1554 * MLO. 0 in case of non-MLO. 1555 */ 1556 struct cfg80211_csa_settings { 1557 struct cfg80211_chan_def chandef; 1558 struct cfg80211_beacon_data beacon_csa; 1559 const u16 *counter_offsets_beacon; 1560 const u16 *counter_offsets_presp; 1561 unsigned int n_counter_offsets_beacon; 1562 unsigned int n_counter_offsets_presp; 1563 struct cfg80211_beacon_data beacon_after; 1564 bool radar_required; 1565 bool block_tx; 1566 u8 count; 1567 u8 link_id; 1568 }; 1569 1570 /** 1571 * struct cfg80211_color_change_settings - color change settings 1572 * 1573 * Used for bss color change 1574 * 1575 * @beacon_color_change: beacon data while performing the color countdown 1576 * @counter_offset_beacon: offsets of the counters within the beacon (tail) 1577 * @counter_offset_presp: offsets of the counters within the probe response 1578 * @beacon_next: beacon data to be used after the color change 1579 * @count: number of beacons until the color change 1580 * @color: the color used after the change 1581 * @link_id: defines the link on which color change is expected during MLO. 1582 * 0 in case of non-MLO. 1583 */ 1584 struct cfg80211_color_change_settings { 1585 struct cfg80211_beacon_data beacon_color_change; 1586 u16 counter_offset_beacon; 1587 u16 counter_offset_presp; 1588 struct cfg80211_beacon_data beacon_next; 1589 u8 count; 1590 u8 color; 1591 u8 link_id; 1592 }; 1593 1594 /** 1595 * struct iface_combination_params - input parameters for interface combinations 1596 * 1597 * Used to pass interface combination parameters 1598 * 1599 * @radio_idx: wiphy radio index or -1 for global 1600 * @num_different_channels: the number of different channels we want 1601 * to use for verification 1602 * @radar_detect: a bitmap where each bit corresponds to a channel 1603 * width where radar detection is needed, as in the definition of 1604 * &struct ieee80211_iface_combination.@radar_detect_widths 1605 * @iftype_num: array with the number of interfaces of each interface 1606 * type. The index is the interface type as specified in &enum 1607 * nl80211_iftype. 1608 * @new_beacon_int: set this to the beacon interval of a new interface 1609 * that's not operating yet, if such is to be checked as part of 1610 * the verification 1611 */ 1612 struct iface_combination_params { 1613 int radio_idx; 1614 int num_different_channels; 1615 u8 radar_detect; 1616 int iftype_num[NUM_NL80211_IFTYPES]; 1617 u32 new_beacon_int; 1618 }; 1619 1620 /** 1621 * enum station_parameters_apply_mask - station parameter values to apply 1622 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) 1623 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability 1624 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state 1625 * 1626 * Not all station parameters have in-band "no change" signalling, 1627 * for those that don't these flags will are used. 1628 */ 1629 enum station_parameters_apply_mask { 1630 STATION_PARAM_APPLY_UAPSD = BIT(0), 1631 STATION_PARAM_APPLY_CAPABILITY = BIT(1), 1632 STATION_PARAM_APPLY_PLINK_STATE = BIT(2), 1633 }; 1634 1635 /** 1636 * struct sta_txpwr - station txpower configuration 1637 * 1638 * Used to configure txpower for station. 1639 * 1640 * @power: tx power (in dBm) to be used for sending data traffic. If tx power 1641 * is not provided, the default per-interface tx power setting will be 1642 * overriding. Driver should be picking up the lowest tx power, either tx 1643 * power per-interface or per-station. 1644 * @type: In particular if TPC %type is NL80211_TX_POWER_LIMITED then tx power 1645 * will be less than or equal to specified from userspace, whereas if TPC 1646 * %type is NL80211_TX_POWER_AUTOMATIC then it indicates default tx power. 1647 * NL80211_TX_POWER_FIXED is not a valid configuration option for 1648 * per peer TPC. 1649 */ 1650 struct sta_txpwr { 1651 s16 power; 1652 enum nl80211_tx_power_setting type; 1653 }; 1654 1655 /** 1656 * struct link_station_parameters - link station parameters 1657 * 1658 * Used to change and create a new link station. 1659 * 1660 * @mld_mac: MAC address of the station 1661 * @link_id: the link id (-1 for non-MLD station) 1662 * @link_mac: MAC address of the link 1663 * @supported_rates: supported rates in IEEE 802.11 format 1664 * (or NULL for no change) 1665 * @supported_rates_len: number of supported rates 1666 * @ht_capa: HT capabilities of station 1667 * @vht_capa: VHT capabilities of station 1668 * @opmode_notif: operating mode field from Operating Mode Notification 1669 * @opmode_notif_used: information if operating mode field is used 1670 * @he_capa: HE capabilities of station 1671 * @he_capa_len: the length of the HE capabilities 1672 * @txpwr: transmit power for an associated station 1673 * @txpwr_set: txpwr field is set 1674 * @he_6ghz_capa: HE 6 GHz Band capabilities of station 1675 * @eht_capa: EHT capabilities of station 1676 * @eht_capa_len: the length of the EHT capabilities 1677 */ 1678 struct link_station_parameters { 1679 const u8 *mld_mac; 1680 int link_id; 1681 const u8 *link_mac; 1682 const u8 *supported_rates; 1683 u8 supported_rates_len; 1684 const struct ieee80211_ht_cap *ht_capa; 1685 const struct ieee80211_vht_cap *vht_capa; 1686 u8 opmode_notif; 1687 bool opmode_notif_used; 1688 const struct ieee80211_he_cap_elem *he_capa; 1689 u8 he_capa_len; 1690 struct sta_txpwr txpwr; 1691 bool txpwr_set; 1692 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1693 const struct ieee80211_eht_cap_elem *eht_capa; 1694 u8 eht_capa_len; 1695 }; 1696 1697 /** 1698 * struct link_station_del_parameters - link station deletion parameters 1699 * 1700 * Used to delete a link station entry (or all stations). 1701 * 1702 * @mld_mac: MAC address of the station 1703 * @link_id: the link id 1704 */ 1705 struct link_station_del_parameters { 1706 const u8 *mld_mac; 1707 u32 link_id; 1708 }; 1709 1710 /** 1711 * struct cfg80211_ttlm_params: TID to link mapping parameters 1712 * 1713 * Used for setting a TID to link mapping. 1714 * 1715 * @dlink: Downlink TID to link mapping, as defined in section 9.4.2.314 1716 * (TID-To-Link Mapping element) in Draft P802.11be_D4.0. 1717 * @ulink: Uplink TID to link mapping, as defined in section 9.4.2.314 1718 * (TID-To-Link Mapping element) in Draft P802.11be_D4.0. 1719 */ 1720 struct cfg80211_ttlm_params { 1721 u16 dlink[8]; 1722 u16 ulink[8]; 1723 }; 1724 1725 /** 1726 * struct station_parameters - station parameters 1727 * 1728 * Used to change and create a new station. 1729 * 1730 * @vlan: vlan interface station should belong to 1731 * @sta_flags_mask: station flags that changed 1732 * (bitmask of BIT(%NL80211_STA_FLAG_...)) 1733 * @sta_flags_set: station flags values 1734 * (bitmask of BIT(%NL80211_STA_FLAG_...)) 1735 * @listen_interval: listen interval or -1 for no change 1736 * @aid: AID or zero for no change 1737 * @vlan_id: VLAN ID for station (if nonzero) 1738 * @peer_aid: mesh peer AID or zero for no change 1739 * @plink_action: plink action to take 1740 * @plink_state: set the peer link state for a station 1741 * @uapsd_queues: bitmap of queues configured for uapsd. same format 1742 * as the AC bitmap in the QoS info field 1743 * @max_sp: max Service Period. same format as the MAX_SP in the 1744 * QoS info field (but already shifted down) 1745 * @sta_modify_mask: bitmap indicating which parameters changed 1746 * (for those that don't have a natural "no change" value), 1747 * see &enum station_parameters_apply_mask 1748 * @local_pm: local link-specific mesh power save mode (no change when set 1749 * to unknown) 1750 * @capability: station capability 1751 * @ext_capab: extended capabilities of the station 1752 * @ext_capab_len: number of extended capabilities 1753 * @supported_channels: supported channels in IEEE 802.11 format 1754 * @supported_channels_len: number of supported channels 1755 * @supported_oper_classes: supported oper classes in IEEE 802.11 format 1756 * @supported_oper_classes_len: number of supported operating classes 1757 * @support_p2p_ps: information if station supports P2P PS mechanism 1758 * @airtime_weight: airtime scheduler weight for this station 1759 * @link_sta_params: link related params. 1760 */ 1761 struct station_parameters { 1762 struct net_device *vlan; 1763 u32 sta_flags_mask, sta_flags_set; 1764 u32 sta_modify_mask; 1765 int listen_interval; 1766 u16 aid; 1767 u16 vlan_id; 1768 u16 peer_aid; 1769 u8 plink_action; 1770 u8 plink_state; 1771 u8 uapsd_queues; 1772 u8 max_sp; 1773 enum nl80211_mesh_power_mode local_pm; 1774 u16 capability; 1775 const u8 *ext_capab; 1776 u8 ext_capab_len; 1777 const u8 *supported_channels; 1778 u8 supported_channels_len; 1779 const u8 *supported_oper_classes; 1780 u8 supported_oper_classes_len; 1781 int support_p2p_ps; 1782 u16 airtime_weight; 1783 struct link_station_parameters link_sta_params; 1784 }; 1785 1786 /** 1787 * struct station_del_parameters - station deletion parameters 1788 * 1789 * Used to delete a station entry (or all stations). 1790 * 1791 * @mac: MAC address of the station to remove or NULL to remove all stations 1792 * @subtype: Management frame subtype to use for indicating removal 1793 * (10 = Disassociation, 12 = Deauthentication) 1794 * @reason_code: Reason code for the Disassociation/Deauthentication frame 1795 * @link_id: Link ID indicating a link that stations to be flushed must be 1796 * using; valid only for MLO, but can also be -1 for MLO to really 1797 * remove all stations. 1798 */ 1799 struct station_del_parameters { 1800 const u8 *mac; 1801 u8 subtype; 1802 u16 reason_code; 1803 int link_id; 1804 }; 1805 1806 /** 1807 * enum cfg80211_station_type - the type of station being modified 1808 * @CFG80211_STA_AP_CLIENT: client of an AP interface 1809 * @CFG80211_STA_AP_CLIENT_UNASSOC: client of an AP interface that is still 1810 * unassociated (update properties for this type of client is permitted) 1811 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has 1812 * the AP MLME in the device 1813 * @CFG80211_STA_AP_STA: AP station on managed interface 1814 * @CFG80211_STA_IBSS: IBSS station 1815 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry 1816 * while TDLS setup is in progress, it moves out of this state when 1817 * being marked authorized; use this only if TDLS with external setup is 1818 * supported/used) 1819 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active 1820 * entry that is operating, has been marked authorized by userspace) 1821 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed) 1822 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed) 1823 */ 1824 enum cfg80211_station_type { 1825 CFG80211_STA_AP_CLIENT, 1826 CFG80211_STA_AP_CLIENT_UNASSOC, 1827 CFG80211_STA_AP_MLME_CLIENT, 1828 CFG80211_STA_AP_STA, 1829 CFG80211_STA_IBSS, 1830 CFG80211_STA_TDLS_PEER_SETUP, 1831 CFG80211_STA_TDLS_PEER_ACTIVE, 1832 CFG80211_STA_MESH_PEER_KERNEL, 1833 CFG80211_STA_MESH_PEER_USER, 1834 }; 1835 1836 /** 1837 * cfg80211_check_station_change - validate parameter changes 1838 * @wiphy: the wiphy this operates on 1839 * @params: the new parameters for a station 1840 * @statype: the type of station being modified 1841 * 1842 * Utility function for the @change_station driver method. Call this function 1843 * with the appropriate station type looking up the station (and checking that 1844 * it exists). It will verify whether the station change is acceptable. 1845 * 1846 * Return: 0 if the change is acceptable, otherwise an error code. Note that 1847 * it may modify the parameters for backward compatibility reasons, so don't 1848 * use them before calling this. 1849 */ 1850 int cfg80211_check_station_change(struct wiphy *wiphy, 1851 struct station_parameters *params, 1852 enum cfg80211_station_type statype); 1853 1854 /** 1855 * enum rate_info_flags - bitrate info flags 1856 * 1857 * Used by the driver to indicate the specific rate transmission 1858 * type for 802.11n transmissions. 1859 * 1860 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS 1861 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS 1862 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 1863 * @RATE_INFO_FLAGS_DMG: 60GHz MCS 1864 * @RATE_INFO_FLAGS_HE_MCS: HE MCS information 1865 * @RATE_INFO_FLAGS_EDMG: 60GHz MCS in EDMG mode 1866 * @RATE_INFO_FLAGS_EXTENDED_SC_DMG: 60GHz extended SC MCS 1867 * @RATE_INFO_FLAGS_EHT_MCS: EHT MCS information 1868 * @RATE_INFO_FLAGS_S1G_MCS: MCS field filled with S1G MCS 1869 */ 1870 enum rate_info_flags { 1871 RATE_INFO_FLAGS_MCS = BIT(0), 1872 RATE_INFO_FLAGS_VHT_MCS = BIT(1), 1873 RATE_INFO_FLAGS_SHORT_GI = BIT(2), 1874 RATE_INFO_FLAGS_DMG = BIT(3), 1875 RATE_INFO_FLAGS_HE_MCS = BIT(4), 1876 RATE_INFO_FLAGS_EDMG = BIT(5), 1877 RATE_INFO_FLAGS_EXTENDED_SC_DMG = BIT(6), 1878 RATE_INFO_FLAGS_EHT_MCS = BIT(7), 1879 RATE_INFO_FLAGS_S1G_MCS = BIT(8), 1880 }; 1881 1882 /** 1883 * enum rate_info_bw - rate bandwidth information 1884 * 1885 * Used by the driver to indicate the rate bandwidth. 1886 * 1887 * @RATE_INFO_BW_5: 5 MHz bandwidth 1888 * @RATE_INFO_BW_10: 10 MHz bandwidth 1889 * @RATE_INFO_BW_20: 20 MHz bandwidth 1890 * @RATE_INFO_BW_40: 40 MHz bandwidth 1891 * @RATE_INFO_BW_80: 80 MHz bandwidth 1892 * @RATE_INFO_BW_160: 160 MHz bandwidth 1893 * @RATE_INFO_BW_HE_RU: bandwidth determined by HE RU allocation 1894 * @RATE_INFO_BW_320: 320 MHz bandwidth 1895 * @RATE_INFO_BW_EHT_RU: bandwidth determined by EHT RU allocation 1896 * @RATE_INFO_BW_1: 1 MHz bandwidth 1897 * @RATE_INFO_BW_2: 2 MHz bandwidth 1898 * @RATE_INFO_BW_4: 4 MHz bandwidth 1899 * @RATE_INFO_BW_8: 8 MHz bandwidth 1900 * @RATE_INFO_BW_16: 16 MHz bandwidth 1901 */ 1902 enum rate_info_bw { 1903 RATE_INFO_BW_20 = 0, 1904 RATE_INFO_BW_5, 1905 RATE_INFO_BW_10, 1906 RATE_INFO_BW_40, 1907 RATE_INFO_BW_80, 1908 RATE_INFO_BW_160, 1909 RATE_INFO_BW_HE_RU, 1910 RATE_INFO_BW_320, 1911 RATE_INFO_BW_EHT_RU, 1912 RATE_INFO_BW_1, 1913 RATE_INFO_BW_2, 1914 RATE_INFO_BW_4, 1915 RATE_INFO_BW_8, 1916 RATE_INFO_BW_16, 1917 }; 1918 1919 /** 1920 * struct rate_info - bitrate information 1921 * 1922 * Information about a receiving or transmitting bitrate 1923 * 1924 * @flags: bitflag of flags from &enum rate_info_flags 1925 * @legacy: bitrate in 100kbit/s for 802.11abg 1926 * @mcs: mcs index if struct describes an HT/VHT/HE/EHT/S1G rate 1927 * @nss: number of streams (VHT & HE only) 1928 * @bw: bandwidth (from &enum rate_info_bw) 1929 * @he_gi: HE guard interval (from &enum nl80211_he_gi) 1930 * @he_dcm: HE DCM value 1931 * @he_ru_alloc: HE RU allocation (from &enum nl80211_he_ru_alloc, 1932 * only valid if bw is %RATE_INFO_BW_HE_RU) 1933 * @n_bonded_ch: In case of EDMG the number of bonded channels (1-4) 1934 * @eht_gi: EHT guard interval (from &enum nl80211_eht_gi) 1935 * @eht_ru_alloc: EHT RU allocation (from &enum nl80211_eht_ru_alloc, 1936 * only valid if bw is %RATE_INFO_BW_EHT_RU) 1937 */ 1938 struct rate_info { 1939 u16 flags; 1940 u16 legacy; 1941 u8 mcs; 1942 u8 nss; 1943 u8 bw; 1944 u8 he_gi; 1945 u8 he_dcm; 1946 u8 he_ru_alloc; 1947 u8 n_bonded_ch; 1948 u8 eht_gi; 1949 u8 eht_ru_alloc; 1950 }; 1951 1952 /** 1953 * enum bss_param_flags - bitrate info flags 1954 * 1955 * Used by the driver to indicate the specific rate transmission 1956 * type for 802.11n transmissions. 1957 * 1958 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 1959 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 1960 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 1961 */ 1962 enum bss_param_flags { 1963 BSS_PARAM_FLAGS_CTS_PROT = BIT(0), 1964 BSS_PARAM_FLAGS_SHORT_PREAMBLE = BIT(1), 1965 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = BIT(2), 1966 }; 1967 1968 /** 1969 * struct sta_bss_parameters - BSS parameters for the attached station 1970 * 1971 * Information about the currently associated BSS 1972 * 1973 * @flags: bitflag of flags from &enum bss_param_flags 1974 * @dtim_period: DTIM period for the BSS 1975 * @beacon_interval: beacon interval 1976 */ 1977 struct sta_bss_parameters { 1978 u8 flags; 1979 u8 dtim_period; 1980 u16 beacon_interval; 1981 }; 1982 1983 /** 1984 * struct cfg80211_txq_stats - TXQ statistics for this TID 1985 * @filled: bitmap of flags using the bits of &enum nl80211_txq_stats to 1986 * indicate the relevant values in this struct are filled 1987 * @backlog_bytes: total number of bytes currently backlogged 1988 * @backlog_packets: total number of packets currently backlogged 1989 * @flows: number of new flows seen 1990 * @drops: total number of packets dropped 1991 * @ecn_marks: total number of packets marked with ECN CE 1992 * @overlimit: number of drops due to queue space overflow 1993 * @overmemory: number of drops due to memory limit overflow 1994 * @collisions: number of hash collisions 1995 * @tx_bytes: total number of bytes dequeued 1996 * @tx_packets: total number of packets dequeued 1997 * @max_flows: maximum number of flows supported 1998 */ 1999 struct cfg80211_txq_stats { 2000 u32 filled; 2001 u32 backlog_bytes; 2002 u32 backlog_packets; 2003 u32 flows; 2004 u32 drops; 2005 u32 ecn_marks; 2006 u32 overlimit; 2007 u32 overmemory; 2008 u32 collisions; 2009 u32 tx_bytes; 2010 u32 tx_packets; 2011 u32 max_flows; 2012 }; 2013 2014 /** 2015 * struct cfg80211_tid_stats - per-TID statistics 2016 * @filled: bitmap of flags using the bits of &enum nl80211_tid_stats to 2017 * indicate the relevant values in this struct are filled 2018 * @rx_msdu: number of received MSDUs 2019 * @tx_msdu: number of (attempted) transmitted MSDUs 2020 * @tx_msdu_retries: number of retries (not counting the first) for 2021 * transmitted MSDUs 2022 * @tx_msdu_failed: number of failed transmitted MSDUs 2023 * @txq_stats: TXQ statistics 2024 */ 2025 struct cfg80211_tid_stats { 2026 u32 filled; 2027 u64 rx_msdu; 2028 u64 tx_msdu; 2029 u64 tx_msdu_retries; 2030 u64 tx_msdu_failed; 2031 struct cfg80211_txq_stats txq_stats; 2032 }; 2033 2034 #define IEEE80211_MAX_CHAINS 4 2035 2036 /** 2037 * struct station_info - station information 2038 * 2039 * Station information filled by driver for get_station() and dump_station. 2040 * 2041 * @filled: bitflag of flags using the bits of &enum nl80211_sta_info to 2042 * indicate the relevant values in this struct for them 2043 * @connected_time: time(in secs) since a station is last connected 2044 * @inactive_time: time since last station activity (tx/rx) in milliseconds 2045 * @assoc_at: bootime (ns) of the last association 2046 * @rx_bytes: bytes (size of MPDUs) received from this station 2047 * @tx_bytes: bytes (size of MPDUs) transmitted to this station 2048 * @llid: mesh local link id 2049 * @plid: mesh peer link id 2050 * @plink_state: mesh peer link state 2051 * @signal: The signal strength, type depends on the wiphy's signal_type. 2052 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 2053 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. 2054 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 2055 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg 2056 * @chain_signal: per-chain signal strength of last received packet in dBm 2057 * @chain_signal_avg: per-chain signal strength average in dBm 2058 * @txrate: current unicast bitrate from this station 2059 * @rxrate: current unicast bitrate to this station 2060 * @rx_packets: packets (MSDUs & MMPDUs) received from this station 2061 * @tx_packets: packets (MSDUs & MMPDUs) transmitted to this station 2062 * @tx_retries: cumulative retry counts (MPDUs) 2063 * @tx_failed: number of failed transmissions (MPDUs) (retries exceeded, no ACK) 2064 * @rx_dropped_misc: Dropped for un-specified reason. 2065 * @bss_param: current BSS parameters 2066 * @generation: generation number for nl80211 dumps. 2067 * This number should increase every time the list of stations 2068 * changes, i.e. when a station is added or removed, so that 2069 * userspace can tell whether it got a consistent snapshot. 2070 * @assoc_req_ies: IEs from (Re)Association Request. 2071 * This is used only when in AP mode with drivers that do not use 2072 * user space MLME/SME implementation. The information is provided for 2073 * the cfg80211_new_sta() calls to notify user space of the IEs. 2074 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. 2075 * @sta_flags: station flags mask & values 2076 * @beacon_loss_count: Number of times beacon loss event has triggered. 2077 * @t_offset: Time offset of the station relative to this host. 2078 * @local_pm: local mesh STA power save mode 2079 * @peer_pm: peer mesh STA power save mode 2080 * @nonpeer_pm: non-peer mesh STA power save mode 2081 * @expected_throughput: expected throughput in kbps (including 802.11 headers) 2082 * towards this station. 2083 * @rx_beacon: number of beacons received from this peer 2084 * @rx_beacon_signal_avg: signal strength average (in dBm) for beacons received 2085 * from this peer 2086 * @connected_to_gate: true if mesh STA has a path to mesh gate 2087 * @rx_duration: aggregate PPDU duration(usecs) for all the frames from a peer 2088 * @tx_duration: aggregate PPDU duration(usecs) for all the frames to a peer 2089 * @airtime_weight: current airtime scheduling weight 2090 * @pertid: per-TID statistics, see &struct cfg80211_tid_stats, using the last 2091 * (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs. 2092 * Note that this doesn't use the @filled bit, but is used if non-NULL. 2093 * @ack_signal: signal strength (in dBm) of the last ACK frame. 2094 * @avg_ack_signal: average rssi value of ack packet for the no of msdu's has 2095 * been sent. 2096 * @rx_mpdu_count: number of MPDUs received from this station 2097 * @fcs_err_count: number of packets (MPDUs) received from this station with 2098 * an FCS error. This counter should be incremented only when TA of the 2099 * received packet with an FCS error matches the peer MAC address. 2100 * @airtime_link_metric: mesh airtime link metric. 2101 * @connected_to_as: true if mesh STA has a path to authentication server 2102 * @mlo_params_valid: Indicates @assoc_link_id and @mld_addr fields are filled 2103 * by driver. Drivers use this only in cfg80211_new_sta() calls when AP 2104 * MLD's MLME/SME is offload to driver. Drivers won't fill this 2105 * information in cfg80211_del_sta_sinfo(), get_station() and 2106 * dump_station() callbacks. 2107 * @assoc_link_id: Indicates MLO link ID of the AP, with which the station 2108 * completed (re)association. This information filled for both MLO 2109 * and non-MLO STA connections when the AP affiliated with an MLD. 2110 * @mld_addr: For MLO STA connection, filled with MLD address of the station. 2111 * For non-MLO STA connection, filled with all zeros. 2112 * @assoc_resp_ies: IEs from (Re)Association Response. 2113 * This is used only when in AP mode with drivers that do not use user 2114 * space MLME/SME implementation. The information is provided only for the 2115 * cfg80211_new_sta() calls to notify user space of the IEs. Drivers won't 2116 * fill this information in cfg80211_del_sta_sinfo(), get_station() and 2117 * dump_station() callbacks. User space needs this information to determine 2118 * the accepted and rejected affiliated links of the connected station. 2119 * @assoc_resp_ies_len: Length of @assoc_resp_ies buffer in octets. 2120 */ 2121 struct station_info { 2122 u64 filled; 2123 u32 connected_time; 2124 u32 inactive_time; 2125 u64 assoc_at; 2126 u64 rx_bytes; 2127 u64 tx_bytes; 2128 u16 llid; 2129 u16 plid; 2130 u8 plink_state; 2131 s8 signal; 2132 s8 signal_avg; 2133 2134 u8 chains; 2135 s8 chain_signal[IEEE80211_MAX_CHAINS]; 2136 s8 chain_signal_avg[IEEE80211_MAX_CHAINS]; 2137 2138 struct rate_info txrate; 2139 struct rate_info rxrate; 2140 u32 rx_packets; 2141 u32 tx_packets; 2142 u32 tx_retries; 2143 u32 tx_failed; 2144 u32 rx_dropped_misc; 2145 struct sta_bss_parameters bss_param; 2146 struct nl80211_sta_flag_update sta_flags; 2147 2148 int generation; 2149 2150 const u8 *assoc_req_ies; 2151 size_t assoc_req_ies_len; 2152 2153 u32 beacon_loss_count; 2154 s64 t_offset; 2155 enum nl80211_mesh_power_mode local_pm; 2156 enum nl80211_mesh_power_mode peer_pm; 2157 enum nl80211_mesh_power_mode nonpeer_pm; 2158 2159 u32 expected_throughput; 2160 2161 u64 tx_duration; 2162 u64 rx_duration; 2163 u64 rx_beacon; 2164 u8 rx_beacon_signal_avg; 2165 u8 connected_to_gate; 2166 2167 struct cfg80211_tid_stats *pertid; 2168 s8 ack_signal; 2169 s8 avg_ack_signal; 2170 2171 u16 airtime_weight; 2172 2173 u32 rx_mpdu_count; 2174 u32 fcs_err_count; 2175 2176 u32 airtime_link_metric; 2177 2178 u8 connected_to_as; 2179 2180 bool mlo_params_valid; 2181 u8 assoc_link_id; 2182 u8 mld_addr[ETH_ALEN] __aligned(2); 2183 const u8 *assoc_resp_ies; 2184 size_t assoc_resp_ies_len; 2185 }; 2186 2187 /** 2188 * struct cfg80211_sar_sub_specs - sub specs limit 2189 * @power: power limitation in 0.25dbm 2190 * @freq_range_index: index the power limitation applies to 2191 */ 2192 struct cfg80211_sar_sub_specs { 2193 s32 power; 2194 u32 freq_range_index; 2195 }; 2196 2197 /** 2198 * struct cfg80211_sar_specs - sar limit specs 2199 * @type: it's set with power in 0.25dbm or other types 2200 * @num_sub_specs: number of sar sub specs 2201 * @sub_specs: memory to hold the sar sub specs 2202 */ 2203 struct cfg80211_sar_specs { 2204 enum nl80211_sar_type type; 2205 u32 num_sub_specs; 2206 struct cfg80211_sar_sub_specs sub_specs[] __counted_by(num_sub_specs); 2207 }; 2208 2209 2210 /** 2211 * struct cfg80211_sar_freq_ranges - sar frequency ranges 2212 * @start_freq: start range edge frequency 2213 * @end_freq: end range edge frequency 2214 */ 2215 struct cfg80211_sar_freq_ranges { 2216 u32 start_freq; 2217 u32 end_freq; 2218 }; 2219 2220 /** 2221 * struct cfg80211_sar_capa - sar limit capability 2222 * @type: it's set via power in 0.25dbm or other types 2223 * @num_freq_ranges: number of frequency ranges 2224 * @freq_ranges: memory to hold the freq ranges. 2225 * 2226 * Note: WLAN driver may append new ranges or split an existing 2227 * range to small ones and then append them. 2228 */ 2229 struct cfg80211_sar_capa { 2230 enum nl80211_sar_type type; 2231 u32 num_freq_ranges; 2232 const struct cfg80211_sar_freq_ranges *freq_ranges; 2233 }; 2234 2235 #if IS_ENABLED(CONFIG_CFG80211) 2236 /** 2237 * cfg80211_get_station - retrieve information about a given station 2238 * @dev: the device where the station is supposed to be connected to 2239 * @mac_addr: the mac address of the station of interest 2240 * @sinfo: pointer to the structure to fill with the information 2241 * 2242 * Return: 0 on success and sinfo is filled with the available information 2243 * otherwise returns a negative error code and the content of sinfo has to be 2244 * considered undefined. 2245 */ 2246 int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr, 2247 struct station_info *sinfo); 2248 #else 2249 static inline int cfg80211_get_station(struct net_device *dev, 2250 const u8 *mac_addr, 2251 struct station_info *sinfo) 2252 { 2253 return -ENOENT; 2254 } 2255 #endif 2256 2257 /** 2258 * enum monitor_flags - monitor flags 2259 * 2260 * Monitor interface configuration flags. Note that these must be the bits 2261 * according to the nl80211 flags. 2262 * 2263 * @MONITOR_FLAG_CHANGED: set if the flags were changed 2264 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 2265 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 2266 * @MONITOR_FLAG_CONTROL: pass control frames 2267 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 2268 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 2269 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address 2270 * @MONITOR_FLAG_SKIP_TX: do not pass locally transmitted frames 2271 */ 2272 enum monitor_flags { 2273 MONITOR_FLAG_CHANGED = BIT(__NL80211_MNTR_FLAG_INVALID), 2274 MONITOR_FLAG_FCSFAIL = BIT(NL80211_MNTR_FLAG_FCSFAIL), 2275 MONITOR_FLAG_PLCPFAIL = BIT(NL80211_MNTR_FLAG_PLCPFAIL), 2276 MONITOR_FLAG_CONTROL = BIT(NL80211_MNTR_FLAG_CONTROL), 2277 MONITOR_FLAG_OTHER_BSS = BIT(NL80211_MNTR_FLAG_OTHER_BSS), 2278 MONITOR_FLAG_COOK_FRAMES = BIT(NL80211_MNTR_FLAG_COOK_FRAMES), 2279 MONITOR_FLAG_ACTIVE = BIT(NL80211_MNTR_FLAG_ACTIVE), 2280 MONITOR_FLAG_SKIP_TX = BIT(NL80211_MNTR_FLAG_SKIP_TX), 2281 }; 2282 2283 /** 2284 * enum mpath_info_flags - mesh path information flags 2285 * 2286 * Used by the driver to indicate which info in &struct mpath_info it has filled 2287 * in during get_station() or dump_station(). 2288 * 2289 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 2290 * @MPATH_INFO_SN: @sn filled 2291 * @MPATH_INFO_METRIC: @metric filled 2292 * @MPATH_INFO_EXPTIME: @exptime filled 2293 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 2294 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 2295 * @MPATH_INFO_FLAGS: @flags filled 2296 * @MPATH_INFO_HOP_COUNT: @hop_count filled 2297 * @MPATH_INFO_PATH_CHANGE: @path_change_count filled 2298 */ 2299 enum mpath_info_flags { 2300 MPATH_INFO_FRAME_QLEN = BIT(0), 2301 MPATH_INFO_SN = BIT(1), 2302 MPATH_INFO_METRIC = BIT(2), 2303 MPATH_INFO_EXPTIME = BIT(3), 2304 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 2305 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 2306 MPATH_INFO_FLAGS = BIT(6), 2307 MPATH_INFO_HOP_COUNT = BIT(7), 2308 MPATH_INFO_PATH_CHANGE = BIT(8), 2309 }; 2310 2311 /** 2312 * struct mpath_info - mesh path information 2313 * 2314 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 2315 * 2316 * @filled: bitfield of flags from &enum mpath_info_flags 2317 * @frame_qlen: number of queued frames for this destination 2318 * @sn: target sequence number 2319 * @metric: metric (cost) of this mesh path 2320 * @exptime: expiration time for the mesh path from now, in msecs 2321 * @flags: mesh path flags from &enum mesh_path_flags 2322 * @discovery_timeout: total mesh path discovery timeout, in msecs 2323 * @discovery_retries: mesh path discovery retries 2324 * @generation: generation number for nl80211 dumps. 2325 * This number should increase every time the list of mesh paths 2326 * changes, i.e. when a station is added or removed, so that 2327 * userspace can tell whether it got a consistent snapshot. 2328 * @hop_count: hops to destination 2329 * @path_change_count: total number of path changes to destination 2330 */ 2331 struct mpath_info { 2332 u32 filled; 2333 u32 frame_qlen; 2334 u32 sn; 2335 u32 metric; 2336 u32 exptime; 2337 u32 discovery_timeout; 2338 u8 discovery_retries; 2339 u8 flags; 2340 u8 hop_count; 2341 u32 path_change_count; 2342 2343 int generation; 2344 }; 2345 2346 /** 2347 * struct bss_parameters - BSS parameters 2348 * 2349 * Used to change BSS parameters (mainly for AP mode). 2350 * 2351 * @link_id: link_id or -1 for non-MLD 2352 * @use_cts_prot: Whether to use CTS protection 2353 * (0 = no, 1 = yes, -1 = do not change) 2354 * @use_short_preamble: Whether the use of short preambles is allowed 2355 * (0 = no, 1 = yes, -1 = do not change) 2356 * @use_short_slot_time: Whether the use of short slot time is allowed 2357 * (0 = no, 1 = yes, -1 = do not change) 2358 * @basic_rates: basic rates in IEEE 802.11 format 2359 * (or NULL for no change) 2360 * @basic_rates_len: number of basic rates 2361 * @ap_isolate: do not forward packets between connected stations 2362 * (0 = no, 1 = yes, -1 = do not change) 2363 * @ht_opmode: HT Operation mode 2364 * (u16 = opmode, -1 = do not change) 2365 * @p2p_ctwindow: P2P CT Window (-1 = no change) 2366 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change) 2367 */ 2368 struct bss_parameters { 2369 int link_id; 2370 int use_cts_prot; 2371 int use_short_preamble; 2372 int use_short_slot_time; 2373 const u8 *basic_rates; 2374 u8 basic_rates_len; 2375 int ap_isolate; 2376 int ht_opmode; 2377 s8 p2p_ctwindow, p2p_opp_ps; 2378 }; 2379 2380 /** 2381 * struct mesh_config - 802.11s mesh configuration 2382 * 2383 * These parameters can be changed while the mesh is active. 2384 * 2385 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used 2386 * by the Mesh Peering Open message 2387 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units 2388 * used by the Mesh Peering Open message 2389 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by 2390 * the mesh peering management to close a mesh peering 2391 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this 2392 * mesh interface 2393 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can 2394 * be sent to establish a new peer link instance in a mesh 2395 * @dot11MeshTTL: the value of TTL field set at a source mesh STA 2396 * @element_ttl: the value of TTL field set at a mesh STA for path selection 2397 * elements 2398 * @auto_open_plinks: whether we should automatically open peer links when we 2399 * detect compatible mesh peers 2400 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to 2401 * synchronize to for 11s default synchronization method 2402 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ 2403 * that an originator mesh STA can send to a particular path target 2404 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds 2405 * @min_discovery_timeout: the minimum length of time to wait until giving up on 2406 * a path discovery in milliseconds 2407 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs 2408 * receiving a PREQ shall consider the forwarding information from the 2409 * root to be valid. (TU = time unit) 2410 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during 2411 * which a mesh STA can send only one action frame containing a PREQ 2412 * element 2413 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during 2414 * which a mesh STA can send only one Action frame containing a PERR 2415 * element 2416 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that 2417 * it takes for an HWMP information element to propagate across the mesh 2418 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA 2419 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root 2420 * announcements are transmitted 2421 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh 2422 * station has access to a broader network beyond the MBSS. (This is 2423 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true 2424 * only means that the station will announce others it's a mesh gate, but 2425 * not necessarily using the gate announcement protocol. Still keeping the 2426 * same nomenclature to be in sync with the spec) 2427 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding 2428 * entity (default is TRUE - forwarding entity) 2429 * @rssi_threshold: the threshold for average signal strength of candidate 2430 * station to establish a peer link 2431 * @ht_opmode: mesh HT protection mode 2432 * 2433 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs 2434 * receiving a proactive PREQ shall consider the forwarding information to 2435 * the root mesh STA to be valid. 2436 * 2437 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive 2438 * PREQs are transmitted. 2439 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) 2440 * during which a mesh STA can send only one Action frame containing 2441 * a PREQ element for root path confirmation. 2442 * @power_mode: The default mesh power save mode which will be the initial 2443 * setting for new peer links. 2444 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake 2445 * after transmitting its beacon. 2446 * @plink_timeout: If no tx activity is seen from a STA we've established 2447 * peering with for longer than this time (in seconds), then remove it 2448 * from the STA's list of peers. Default is 30 minutes. 2449 * @dot11MeshConnectedToAuthServer: if set to true then this mesh STA 2450 * will advertise that it is connected to a authentication server 2451 * in the mesh formation field. 2452 * @dot11MeshConnectedToMeshGate: if set to true, advertise that this STA is 2453 * connected to a mesh gate in mesh formation info. If false, the 2454 * value in mesh formation is determined by the presence of root paths 2455 * in the mesh path table 2456 * @dot11MeshNolearn: Try to avoid multi-hop path discovery (e.g. PREQ/PREP 2457 * for HWMP) if the destination is a direct neighbor. Note that this might 2458 * not be the optimal decision as a multi-hop route might be better. So 2459 * if using this setting you will likely also want to disable 2460 * dot11MeshForwarding and use another mesh routing protocol on top. 2461 */ 2462 struct mesh_config { 2463 u16 dot11MeshRetryTimeout; 2464 u16 dot11MeshConfirmTimeout; 2465 u16 dot11MeshHoldingTimeout; 2466 u16 dot11MeshMaxPeerLinks; 2467 u8 dot11MeshMaxRetries; 2468 u8 dot11MeshTTL; 2469 u8 element_ttl; 2470 bool auto_open_plinks; 2471 u32 dot11MeshNbrOffsetMaxNeighbor; 2472 u8 dot11MeshHWMPmaxPREQretries; 2473 u32 path_refresh_time; 2474 u16 min_discovery_timeout; 2475 u32 dot11MeshHWMPactivePathTimeout; 2476 u16 dot11MeshHWMPpreqMinInterval; 2477 u16 dot11MeshHWMPperrMinInterval; 2478 u16 dot11MeshHWMPnetDiameterTraversalTime; 2479 u8 dot11MeshHWMPRootMode; 2480 bool dot11MeshConnectedToMeshGate; 2481 bool dot11MeshConnectedToAuthServer; 2482 u16 dot11MeshHWMPRannInterval; 2483 bool dot11MeshGateAnnouncementProtocol; 2484 bool dot11MeshForwarding; 2485 s32 rssi_threshold; 2486 u16 ht_opmode; 2487 u32 dot11MeshHWMPactivePathToRootTimeout; 2488 u16 dot11MeshHWMProotInterval; 2489 u16 dot11MeshHWMPconfirmationInterval; 2490 enum nl80211_mesh_power_mode power_mode; 2491 u16 dot11MeshAwakeWindowDuration; 2492 u32 plink_timeout; 2493 bool dot11MeshNolearn; 2494 }; 2495 2496 /** 2497 * struct mesh_setup - 802.11s mesh setup configuration 2498 * @chandef: defines the channel to use 2499 * @mesh_id: the mesh ID 2500 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 2501 * @sync_method: which synchronization method to use 2502 * @path_sel_proto: which path selection protocol to use 2503 * @path_metric: which metric to use 2504 * @auth_id: which authentication method this mesh is using 2505 * @ie: vendor information elements (optional) 2506 * @ie_len: length of vendor information elements 2507 * @is_authenticated: this mesh requires authentication 2508 * @is_secure: this mesh uses security 2509 * @user_mpm: userspace handles all MPM functions 2510 * @dtim_period: DTIM period to use 2511 * @beacon_interval: beacon interval to use 2512 * @mcast_rate: multicast rate for Mesh Node [6Mbps is the default for 802.11a] 2513 * @basic_rates: basic rates to use when creating the mesh 2514 * @beacon_rate: bitrate to be used for beacons 2515 * @userspace_handles_dfs: whether user space controls DFS operation, i.e. 2516 * changes the channel when a radar is detected. This is required 2517 * to operate on DFS channels. 2518 * @control_port_over_nl80211: TRUE if userspace expects to exchange control 2519 * port frames over NL80211 instead of the network interface. 2520 * 2521 * These parameters are fixed when the mesh is created. 2522 */ 2523 struct mesh_setup { 2524 struct cfg80211_chan_def chandef; 2525 const u8 *mesh_id; 2526 u8 mesh_id_len; 2527 u8 sync_method; 2528 u8 path_sel_proto; 2529 u8 path_metric; 2530 u8 auth_id; 2531 const u8 *ie; 2532 u8 ie_len; 2533 bool is_authenticated; 2534 bool is_secure; 2535 bool user_mpm; 2536 u8 dtim_period; 2537 u16 beacon_interval; 2538 int mcast_rate[NUM_NL80211_BANDS]; 2539 u32 basic_rates; 2540 struct cfg80211_bitrate_mask beacon_rate; 2541 bool userspace_handles_dfs; 2542 bool control_port_over_nl80211; 2543 }; 2544 2545 /** 2546 * struct ocb_setup - 802.11p OCB mode setup configuration 2547 * @chandef: defines the channel to use 2548 * 2549 * These parameters are fixed when connecting to the network 2550 */ 2551 struct ocb_setup { 2552 struct cfg80211_chan_def chandef; 2553 }; 2554 2555 /** 2556 * struct ieee80211_txq_params - TX queue parameters 2557 * @ac: AC identifier 2558 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 2559 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 2560 * 1..32767] 2561 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 2562 * 1..32767] 2563 * @aifs: Arbitration interframe space [0..255] 2564 * @link_id: link_id or -1 for non-MLD 2565 */ 2566 struct ieee80211_txq_params { 2567 enum nl80211_ac ac; 2568 u16 txop; 2569 u16 cwmin; 2570 u16 cwmax; 2571 u8 aifs; 2572 int link_id; 2573 }; 2574 2575 /** 2576 * DOC: Scanning and BSS list handling 2577 * 2578 * The scanning process itself is fairly simple, but cfg80211 offers quite 2579 * a bit of helper functionality. To start a scan, the scan operation will 2580 * be invoked with a scan definition. This scan definition contains the 2581 * channels to scan, and the SSIDs to send probe requests for (including the 2582 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 2583 * probe. Additionally, a scan request may contain extra information elements 2584 * that should be added to the probe request. The IEs are guaranteed to be 2585 * well-formed, and will not exceed the maximum length the driver advertised 2586 * in the wiphy structure. 2587 * 2588 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 2589 * it is responsible for maintaining the BSS list; the driver should not 2590 * maintain a list itself. For this notification, various functions exist. 2591 * 2592 * Since drivers do not maintain a BSS list, there are also a number of 2593 * functions to search for a BSS and obtain information about it from the 2594 * BSS structure cfg80211 maintains. The BSS list is also made available 2595 * to userspace. 2596 */ 2597 2598 /** 2599 * struct cfg80211_ssid - SSID description 2600 * @ssid: the SSID 2601 * @ssid_len: length of the ssid 2602 */ 2603 struct cfg80211_ssid { 2604 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2605 u8 ssid_len; 2606 }; 2607 2608 /** 2609 * struct cfg80211_scan_info - information about completed scan 2610 * @scan_start_tsf: scan start time in terms of the TSF of the BSS that the 2611 * wireless device that requested the scan is connected to. If this 2612 * information is not available, this field is left zero. 2613 * @tsf_bssid: the BSSID according to which %scan_start_tsf is set. 2614 * @aborted: set to true if the scan was aborted for any reason, 2615 * userspace will be notified of that 2616 */ 2617 struct cfg80211_scan_info { 2618 u64 scan_start_tsf; 2619 u8 tsf_bssid[ETH_ALEN] __aligned(2); 2620 bool aborted; 2621 }; 2622 2623 /** 2624 * struct cfg80211_scan_6ghz_params - relevant for 6 GHz only 2625 * 2626 * @short_ssid: short ssid to scan for 2627 * @bssid: bssid to scan for 2628 * @channel_idx: idx of the channel in the channel array in the scan request 2629 * which the above info is relevant to 2630 * @unsolicited_probe: the AP transmits unsolicited probe response every 20 TU 2631 * @short_ssid_valid: @short_ssid is valid and can be used 2632 * @psc_no_listen: when set, and the channel is a PSC channel, no need to wait 2633 * 20 TUs before starting to send probe requests. 2634 * @psd_20: The AP's 20 MHz PSD value. 2635 */ 2636 struct cfg80211_scan_6ghz_params { 2637 u32 short_ssid; 2638 u32 channel_idx; 2639 u8 bssid[ETH_ALEN]; 2640 bool unsolicited_probe; 2641 bool short_ssid_valid; 2642 bool psc_no_listen; 2643 s8 psd_20; 2644 }; 2645 2646 /** 2647 * struct cfg80211_scan_request - scan request description 2648 * 2649 * @ssids: SSIDs to scan for (active scan only) 2650 * @n_ssids: number of SSIDs 2651 * @channels: channels to scan on. 2652 * @n_channels: total number of channels to scan 2653 * @ie: optional information element(s) to add into Probe Request or %NULL 2654 * @ie_len: length of ie in octets 2655 * @duration: how long to listen on each channel, in TUs. If 2656 * %duration_mandatory is not set, this is the maximum dwell time and 2657 * the actual dwell time may be shorter. 2658 * @duration_mandatory: if set, the scan duration must be as specified by the 2659 * %duration field. 2660 * @flags: control flags from &enum nl80211_scan_flags 2661 * @rates: bitmap of rates to advertise for each band 2662 * @wiphy: the wiphy this was for 2663 * @scan_start: time (in jiffies) when the scan started 2664 * @wdev: the wireless device to scan for 2665 * @info: (internal) information about completed scan 2666 * @notified: (internal) scan request was notified as done or aborted 2667 * @no_cck: used to send probe requests at non CCK rate in 2GHz band 2668 * @mac_addr: MAC address used with randomisation 2669 * @mac_addr_mask: MAC address mask used with randomisation, bits that 2670 * are 0 in the mask should be randomised, bits that are 1 should 2671 * be taken from the @mac_addr 2672 * @scan_6ghz: relevant for split scan request only, 2673 * true if this is the second scan request 2674 * @n_6ghz_params: number of 6 GHz params 2675 * @scan_6ghz_params: 6 GHz params 2676 * @bssid: BSSID to scan for (most commonly, the wildcard BSSID) 2677 * @tsf_report_link_id: for MLO, indicates the link ID of the BSS that should be 2678 * used for TSF reporting. Can be set to -1 to indicate no preference. 2679 */ 2680 struct cfg80211_scan_request { 2681 struct cfg80211_ssid *ssids; 2682 int n_ssids; 2683 u32 n_channels; 2684 const u8 *ie; 2685 size_t ie_len; 2686 u16 duration; 2687 bool duration_mandatory; 2688 u32 flags; 2689 2690 u32 rates[NUM_NL80211_BANDS]; 2691 2692 struct wireless_dev *wdev; 2693 2694 u8 mac_addr[ETH_ALEN] __aligned(2); 2695 u8 mac_addr_mask[ETH_ALEN] __aligned(2); 2696 u8 bssid[ETH_ALEN] __aligned(2); 2697 2698 /* internal */ 2699 struct wiphy *wiphy; 2700 unsigned long scan_start; 2701 struct cfg80211_scan_info info; 2702 bool notified; 2703 bool no_cck; 2704 bool scan_6ghz; 2705 u32 n_6ghz_params; 2706 struct cfg80211_scan_6ghz_params *scan_6ghz_params; 2707 s8 tsf_report_link_id; 2708 2709 /* keep last */ 2710 struct ieee80211_channel *channels[] __counted_by(n_channels); 2711 }; 2712 2713 static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask) 2714 { 2715 int i; 2716 2717 get_random_bytes(buf, ETH_ALEN); 2718 for (i = 0; i < ETH_ALEN; i++) { 2719 buf[i] &= ~mask[i]; 2720 buf[i] |= addr[i] & mask[i]; 2721 } 2722 } 2723 2724 /** 2725 * struct cfg80211_match_set - sets of attributes to match 2726 * 2727 * @ssid: SSID to be matched; may be zero-length in case of BSSID match 2728 * or no match (RSSI only) 2729 * @bssid: BSSID to be matched; may be all-zero BSSID in case of SSID match 2730 * or no match (RSSI only) 2731 * @rssi_thold: don't report scan results below this threshold (in s32 dBm) 2732 */ 2733 struct cfg80211_match_set { 2734 struct cfg80211_ssid ssid; 2735 u8 bssid[ETH_ALEN]; 2736 s32 rssi_thold; 2737 }; 2738 2739 /** 2740 * struct cfg80211_sched_scan_plan - scan plan for scheduled scan 2741 * 2742 * @interval: interval between scheduled scan iterations. In seconds. 2743 * @iterations: number of scan iterations in this scan plan. Zero means 2744 * infinite loop. 2745 * The last scan plan will always have this parameter set to zero, 2746 * all other scan plans will have a finite number of iterations. 2747 */ 2748 struct cfg80211_sched_scan_plan { 2749 u32 interval; 2750 u32 iterations; 2751 }; 2752 2753 /** 2754 * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment. 2755 * 2756 * @band: band of BSS which should match for RSSI level adjustment. 2757 * @delta: value of RSSI level adjustment. 2758 */ 2759 struct cfg80211_bss_select_adjust { 2760 enum nl80211_band band; 2761 s8 delta; 2762 }; 2763 2764 /** 2765 * struct cfg80211_sched_scan_request - scheduled scan request description 2766 * 2767 * @reqid: identifies this request. 2768 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 2769 * @n_ssids: number of SSIDs 2770 * @n_channels: total number of channels to scan 2771 * @ie: optional information element(s) to add into Probe Request or %NULL 2772 * @ie_len: length of ie in octets 2773 * @flags: control flags from &enum nl80211_scan_flags 2774 * @match_sets: sets of parameters to be matched for a scan result 2775 * entry to be considered valid and to be passed to the host 2776 * (others are filtered out). 2777 * If omitted, all results are passed. 2778 * @n_match_sets: number of match sets 2779 * @report_results: indicates that results were reported for this request 2780 * @wiphy: the wiphy this was for 2781 * @dev: the interface 2782 * @scan_start: start time of the scheduled scan 2783 * @channels: channels to scan 2784 * @min_rssi_thold: for drivers only supporting a single threshold, this 2785 * contains the minimum over all matchsets 2786 * @mac_addr: MAC address used with randomisation 2787 * @mac_addr_mask: MAC address mask used with randomisation, bits that 2788 * are 0 in the mask should be randomised, bits that are 1 should 2789 * be taken from the @mac_addr 2790 * @scan_plans: scan plans to be executed in this scheduled scan. Lowest 2791 * index must be executed first. 2792 * @n_scan_plans: number of scan plans, at least 1. 2793 * @rcu_head: RCU callback used to free the struct 2794 * @owner_nlportid: netlink portid of owner (if this should is a request 2795 * owned by a particular socket) 2796 * @nl_owner_dead: netlink owner socket was closed - this request be freed 2797 * @list: for keeping list of requests. 2798 * @delay: delay in seconds to use before starting the first scan 2799 * cycle. The driver may ignore this parameter and start 2800 * immediately (or at any other time), if this feature is not 2801 * supported. 2802 * @relative_rssi_set: Indicates whether @relative_rssi is set or not. 2803 * @relative_rssi: Relative RSSI threshold in dB to restrict scan result 2804 * reporting in connected state to cases where a matching BSS is determined 2805 * to have better or slightly worse RSSI than the current connected BSS. 2806 * The relative RSSI threshold values are ignored in disconnected state. 2807 * @rssi_adjust: delta dB of RSSI preference to be given to the BSSs that belong 2808 * to the specified band while deciding whether a better BSS is reported 2809 * using @relative_rssi. If delta is a negative number, the BSSs that 2810 * belong to the specified band will be penalized by delta dB in relative 2811 * comparisons. 2812 */ 2813 struct cfg80211_sched_scan_request { 2814 u64 reqid; 2815 struct cfg80211_ssid *ssids; 2816 int n_ssids; 2817 u32 n_channels; 2818 const u8 *ie; 2819 size_t ie_len; 2820 u32 flags; 2821 struct cfg80211_match_set *match_sets; 2822 int n_match_sets; 2823 s32 min_rssi_thold; 2824 u32 delay; 2825 struct cfg80211_sched_scan_plan *scan_plans; 2826 int n_scan_plans; 2827 2828 u8 mac_addr[ETH_ALEN] __aligned(2); 2829 u8 mac_addr_mask[ETH_ALEN] __aligned(2); 2830 2831 bool relative_rssi_set; 2832 s8 relative_rssi; 2833 struct cfg80211_bss_select_adjust rssi_adjust; 2834 2835 /* internal */ 2836 struct wiphy *wiphy; 2837 struct net_device *dev; 2838 unsigned long scan_start; 2839 bool report_results; 2840 struct rcu_head rcu_head; 2841 u32 owner_nlportid; 2842 bool nl_owner_dead; 2843 struct list_head list; 2844 2845 /* keep last */ 2846 struct ieee80211_channel *channels[] __counted_by(n_channels); 2847 }; 2848 2849 /** 2850 * enum cfg80211_signal_type - signal type 2851 * 2852 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 2853 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 2854 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 2855 */ 2856 enum cfg80211_signal_type { 2857 CFG80211_SIGNAL_TYPE_NONE, 2858 CFG80211_SIGNAL_TYPE_MBM, 2859 CFG80211_SIGNAL_TYPE_UNSPEC, 2860 }; 2861 2862 /** 2863 * struct cfg80211_inform_bss - BSS inform data 2864 * @chan: channel the frame was received on 2865 * @signal: signal strength value, according to the wiphy's 2866 * signal type 2867 * @boottime_ns: timestamp (CLOCK_BOOTTIME) when the information was 2868 * received; should match the time when the frame was actually 2869 * received by the device (not just by the host, in case it was 2870 * buffered on the device) and be accurate to about 10ms. 2871 * If the frame isn't buffered, just passing the return value of 2872 * ktime_get_boottime_ns() is likely appropriate. 2873 * @parent_tsf: the time at the start of reception of the first octet of the 2874 * timestamp field of the frame. The time is the TSF of the BSS specified 2875 * by %parent_bssid. 2876 * @parent_bssid: the BSS according to which %parent_tsf is set. This is set to 2877 * the BSS that requested the scan in which the beacon/probe was received. 2878 * @chains: bitmask for filled values in @chain_signal. 2879 * @chain_signal: per-chain signal strength of last received BSS in dBm. 2880 * @restrict_use: restrict usage, if not set, assume @use_for is 2881 * %NL80211_BSS_USE_FOR_NORMAL. 2882 * @use_for: bitmap of possible usage for this BSS, see 2883 * &enum nl80211_bss_use_for 2884 * @cannot_use_reasons: the reasons (bitmap) for not being able to connect, 2885 * if @restrict_use is set and @use_for is zero (empty); may be 0 for 2886 * unspecified reasons; see &enum nl80211_bss_cannot_use_reasons 2887 * @drv_data: Data to be passed through to @inform_bss 2888 */ 2889 struct cfg80211_inform_bss { 2890 struct ieee80211_channel *chan; 2891 s32 signal; 2892 u64 boottime_ns; 2893 u64 parent_tsf; 2894 u8 parent_bssid[ETH_ALEN] __aligned(2); 2895 u8 chains; 2896 s8 chain_signal[IEEE80211_MAX_CHAINS]; 2897 2898 u8 restrict_use:1, use_for:7; 2899 u8 cannot_use_reasons; 2900 2901 void *drv_data; 2902 }; 2903 2904 /** 2905 * struct cfg80211_bss_ies - BSS entry IE data 2906 * @tsf: TSF contained in the frame that carried these IEs 2907 * @rcu_head: internal use, for freeing 2908 * @len: length of the IEs 2909 * @from_beacon: these IEs are known to come from a beacon 2910 * @data: IE data 2911 */ 2912 struct cfg80211_bss_ies { 2913 u64 tsf; 2914 struct rcu_head rcu_head; 2915 int len; 2916 bool from_beacon; 2917 u8 data[]; 2918 }; 2919 2920 /** 2921 * struct cfg80211_bss - BSS description 2922 * 2923 * This structure describes a BSS (which may also be a mesh network) 2924 * for use in scan results and similar. 2925 * 2926 * @channel: channel this BSS is on 2927 * @bssid: BSSID of the BSS 2928 * @beacon_interval: the beacon interval as from the frame 2929 * @capability: the capability field in host byte order 2930 * @ies: the information elements (Note that there is no guarantee that these 2931 * are well-formed!); this is a pointer to either the beacon_ies or 2932 * proberesp_ies depending on whether Probe Response frame has been 2933 * received. It is always non-%NULL. 2934 * @beacon_ies: the information elements from the last Beacon frame 2935 * (implementation note: if @hidden_beacon_bss is set this struct doesn't 2936 * own the beacon_ies, but they're just pointers to the ones from the 2937 * @hidden_beacon_bss struct) 2938 * @proberesp_ies: the information elements from the last Probe Response frame 2939 * @proberesp_ecsa_stuck: ECSA element is stuck in the Probe Response frame, 2940 * cannot rely on it having valid data 2941 * @hidden_beacon_bss: in case this BSS struct represents a probe response from 2942 * a BSS that hides the SSID in its beacon, this points to the BSS struct 2943 * that holds the beacon data. @beacon_ies is still valid, of course, and 2944 * points to the same data as hidden_beacon_bss->beacon_ies in that case. 2945 * @transmitted_bss: pointer to the transmitted BSS, if this is a 2946 * non-transmitted one (multi-BSSID support) 2947 * @nontrans_list: list of non-transmitted BSS, if this is a transmitted one 2948 * (multi-BSSID support) 2949 * @signal: signal strength value (type depends on the wiphy's signal_type) 2950 * @chains: bitmask for filled values in @chain_signal. 2951 * @chain_signal: per-chain signal strength of last received BSS in dBm. 2952 * @bssid_index: index in the multiple BSS set 2953 * @max_bssid_indicator: max number of members in the BSS set 2954 * @use_for: bitmap of possible usage for this BSS, see 2955 * &enum nl80211_bss_use_for 2956 * @cannot_use_reasons: the reasons (bitmap) for not being able to connect, 2957 * if @restrict_use is set and @use_for is zero (empty); may be 0 for 2958 * unspecified reasons; see &enum nl80211_bss_cannot_use_reasons 2959 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 2960 */ 2961 struct cfg80211_bss { 2962 struct ieee80211_channel *channel; 2963 2964 const struct cfg80211_bss_ies __rcu *ies; 2965 const struct cfg80211_bss_ies __rcu *beacon_ies; 2966 const struct cfg80211_bss_ies __rcu *proberesp_ies; 2967 2968 struct cfg80211_bss *hidden_beacon_bss; 2969 struct cfg80211_bss *transmitted_bss; 2970 struct list_head nontrans_list; 2971 2972 s32 signal; 2973 2974 u16 beacon_interval; 2975 u16 capability; 2976 2977 u8 bssid[ETH_ALEN]; 2978 u8 chains; 2979 s8 chain_signal[IEEE80211_MAX_CHAINS]; 2980 2981 u8 proberesp_ecsa_stuck:1; 2982 2983 u8 bssid_index; 2984 u8 max_bssid_indicator; 2985 2986 u8 use_for; 2987 u8 cannot_use_reasons; 2988 2989 u8 priv[] __aligned(sizeof(void *)); 2990 }; 2991 2992 /** 2993 * ieee80211_bss_get_elem - find element with given ID 2994 * @bss: the bss to search 2995 * @id: the element ID 2996 * 2997 * Note that the return value is an RCU-protected pointer, so 2998 * rcu_read_lock() must be held when calling this function. 2999 * Return: %NULL if not found. 3000 */ 3001 const struct element *ieee80211_bss_get_elem(struct cfg80211_bss *bss, u8 id); 3002 3003 /** 3004 * ieee80211_bss_get_ie - find IE with given ID 3005 * @bss: the bss to search 3006 * @id: the element ID 3007 * 3008 * Note that the return value is an RCU-protected pointer, so 3009 * rcu_read_lock() must be held when calling this function. 3010 * Return: %NULL if not found. 3011 */ 3012 static inline const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 id) 3013 { 3014 return (const void *)ieee80211_bss_get_elem(bss, id); 3015 } 3016 3017 3018 /** 3019 * struct cfg80211_auth_request - Authentication request data 3020 * 3021 * This structure provides information needed to complete IEEE 802.11 3022 * authentication. 3023 * 3024 * @bss: The BSS to authenticate with, the callee must obtain a reference 3025 * to it if it needs to keep it. 3026 * @supported_selectors: List of selectors that should be assumed to be 3027 * supported by the station. 3028 * SAE_H2E must be assumed supported if set to %NULL. 3029 * @supported_selectors_len: Length of supported_selectors in octets. 3030 * @auth_type: Authentication type (algorithm) 3031 * @ie: Extra IEs to add to Authentication frame or %NULL 3032 * @ie_len: Length of ie buffer in octets 3033 * @key_len: length of WEP key for shared key authentication 3034 * @key_idx: index of WEP key for shared key authentication 3035 * @key: WEP key for shared key authentication 3036 * @auth_data: Fields and elements in Authentication frames. This contains 3037 * the authentication frame body (non-IE and IE data), excluding the 3038 * Authentication algorithm number, i.e., starting at the Authentication 3039 * transaction sequence number field. 3040 * @auth_data_len: Length of auth_data buffer in octets 3041 * @link_id: if >= 0, indicates authentication should be done as an MLD, 3042 * the interface address is included as the MLD address and the 3043 * necessary link (with the given link_id) will be created (and 3044 * given an MLD address) by the driver 3045 * @ap_mld_addr: AP MLD address in case of authentication request with 3046 * an AP MLD, valid iff @link_id >= 0 3047 */ 3048 struct cfg80211_auth_request { 3049 struct cfg80211_bss *bss; 3050 const u8 *ie; 3051 size_t ie_len; 3052 const u8 *supported_selectors; 3053 u8 supported_selectors_len; 3054 enum nl80211_auth_type auth_type; 3055 const u8 *key; 3056 u8 key_len; 3057 s8 key_idx; 3058 const u8 *auth_data; 3059 size_t auth_data_len; 3060 s8 link_id; 3061 const u8 *ap_mld_addr; 3062 }; 3063 3064 /** 3065 * struct cfg80211_assoc_link - per-link information for MLO association 3066 * @bss: the BSS pointer, see also &struct cfg80211_assoc_request::bss; 3067 * if this is %NULL for a link, that link is not requested 3068 * @elems: extra elements for the per-STA profile for this link 3069 * @elems_len: length of the elements 3070 * @disabled: If set this link should be included during association etc. but it 3071 * should not be used until enabled by the AP MLD. 3072 * @error: per-link error code, must be <= 0. If there is an error, then the 3073 * operation as a whole must fail. 3074 */ 3075 struct cfg80211_assoc_link { 3076 struct cfg80211_bss *bss; 3077 const u8 *elems; 3078 size_t elems_len; 3079 bool disabled; 3080 int error; 3081 }; 3082 3083 /** 3084 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. 3085 * 3086 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) 3087 * @ASSOC_REQ_DISABLE_VHT: Disable VHT 3088 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association 3089 * @CONNECT_REQ_EXTERNAL_AUTH_SUPPORT: User space indicates external 3090 * authentication capability. Drivers can offload authentication to 3091 * userspace if this flag is set. Only applicable for cfg80211_connect() 3092 * request (connect callback). 3093 * @ASSOC_REQ_DISABLE_HE: Disable HE 3094 * @ASSOC_REQ_DISABLE_EHT: Disable EHT 3095 * @CONNECT_REQ_MLO_SUPPORT: Userspace indicates support for handling MLD links. 3096 * Drivers shall disable MLO features for the current association if this 3097 * flag is not set. 3098 * @ASSOC_REQ_SPP_AMSDU: SPP A-MSDUs will be used on this connection (if any) 3099 */ 3100 enum cfg80211_assoc_req_flags { 3101 ASSOC_REQ_DISABLE_HT = BIT(0), 3102 ASSOC_REQ_DISABLE_VHT = BIT(1), 3103 ASSOC_REQ_USE_RRM = BIT(2), 3104 CONNECT_REQ_EXTERNAL_AUTH_SUPPORT = BIT(3), 3105 ASSOC_REQ_DISABLE_HE = BIT(4), 3106 ASSOC_REQ_DISABLE_EHT = BIT(5), 3107 CONNECT_REQ_MLO_SUPPORT = BIT(6), 3108 ASSOC_REQ_SPP_AMSDU = BIT(7), 3109 }; 3110 3111 /** 3112 * struct cfg80211_assoc_request - (Re)Association request data 3113 * 3114 * This structure provides information needed to complete IEEE 802.11 3115 * (re)association. 3116 * @bss: The BSS to associate with. If the call is successful the driver is 3117 * given a reference that it must give back to cfg80211_send_rx_assoc() 3118 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new 3119 * association requests while already associating must be rejected. 3120 * This also applies to the @links.bss parameter, which is used instead 3121 * of this one (it is %NULL) for MLO associations. 3122 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 3123 * @ie_len: Length of ie buffer in octets 3124 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 3125 * @crypto: crypto settings 3126 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used 3127 * to indicate a request to reassociate within the ESS instead of a request 3128 * do the initial association with the ESS. When included, this is set to 3129 * the BSSID of the current association, i.e., to the value that is 3130 * included in the Current AP address field of the Reassociation Request 3131 * frame. 3132 * @flags: See &enum cfg80211_assoc_req_flags 3133 * @supported_selectors: supported selectors in IEEE 802.11 format 3134 * (or %NULL for no change). 3135 * If %NULL, then support for SAE_H2E should be assumed. 3136 * @supported_selectors_len: Length of supported_selectors in octets. 3137 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 3138 * will be used in ht_capa. Un-supported values will be ignored. 3139 * @ht_capa_mask: The bits of ht_capa which are to be used. 3140 * @vht_capa: VHT capability override 3141 * @vht_capa_mask: VHT capability mask indicating which fields to use 3142 * @fils_kek: FILS KEK for protecting (Re)Association Request/Response frame or 3143 * %NULL if FILS is not used. 3144 * @fils_kek_len: Length of fils_kek in octets 3145 * @fils_nonces: FILS nonces (part of AAD) for protecting (Re)Association 3146 * Request/Response frame or %NULL if FILS is not used. This field starts 3147 * with 16 octets of STA Nonce followed by 16 octets of AP Nonce. 3148 * @s1g_capa: S1G capability override 3149 * @s1g_capa_mask: S1G capability override mask 3150 * @links: per-link information for MLO connections 3151 * @link_id: >= 0 for MLO connections, where links are given, and indicates 3152 * the link on which the association request should be sent 3153 * @ap_mld_addr: AP MLD address in case of MLO association request, 3154 * valid iff @link_id >= 0 3155 */ 3156 struct cfg80211_assoc_request { 3157 struct cfg80211_bss *bss; 3158 const u8 *ie, *prev_bssid; 3159 size_t ie_len; 3160 struct cfg80211_crypto_settings crypto; 3161 bool use_mfp; 3162 u32 flags; 3163 const u8 *supported_selectors; 3164 u8 supported_selectors_len; 3165 struct ieee80211_ht_cap ht_capa; 3166 struct ieee80211_ht_cap ht_capa_mask; 3167 struct ieee80211_vht_cap vht_capa, vht_capa_mask; 3168 const u8 *fils_kek; 3169 size_t fils_kek_len; 3170 const u8 *fils_nonces; 3171 struct ieee80211_s1g_cap s1g_capa, s1g_capa_mask; 3172 struct cfg80211_assoc_link links[IEEE80211_MLD_MAX_NUM_LINKS]; 3173 const u8 *ap_mld_addr; 3174 s8 link_id; 3175 }; 3176 3177 /** 3178 * struct cfg80211_deauth_request - Deauthentication request data 3179 * 3180 * This structure provides information needed to complete IEEE 802.11 3181 * deauthentication. 3182 * 3183 * @bssid: the BSSID or AP MLD address to deauthenticate from 3184 * @ie: Extra IEs to add to Deauthentication frame or %NULL 3185 * @ie_len: Length of ie buffer in octets 3186 * @reason_code: The reason code for the deauthentication 3187 * @local_state_change: if set, change local state only and 3188 * do not set a deauth frame 3189 */ 3190 struct cfg80211_deauth_request { 3191 const u8 *bssid; 3192 const u8 *ie; 3193 size_t ie_len; 3194 u16 reason_code; 3195 bool local_state_change; 3196 }; 3197 3198 /** 3199 * struct cfg80211_disassoc_request - Disassociation request data 3200 * 3201 * This structure provides information needed to complete IEEE 802.11 3202 * disassociation. 3203 * 3204 * @ap_addr: the BSSID or AP MLD address to disassociate from 3205 * @ie: Extra IEs to add to Disassociation frame or %NULL 3206 * @ie_len: Length of ie buffer in octets 3207 * @reason_code: The reason code for the disassociation 3208 * @local_state_change: This is a request for a local state only, i.e., no 3209 * Disassociation frame is to be transmitted. 3210 */ 3211 struct cfg80211_disassoc_request { 3212 const u8 *ap_addr; 3213 const u8 *ie; 3214 size_t ie_len; 3215 u16 reason_code; 3216 bool local_state_change; 3217 }; 3218 3219 /** 3220 * struct cfg80211_ibss_params - IBSS parameters 3221 * 3222 * This structure defines the IBSS parameters for the join_ibss() 3223 * method. 3224 * 3225 * @ssid: The SSID, will always be non-null. 3226 * @ssid_len: The length of the SSID, will always be non-zero. 3227 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 3228 * search for IBSSs with a different BSSID. 3229 * @chandef: defines the channel to use if no other IBSS to join can be found 3230 * @channel_fixed: The channel should be fixed -- do not search for 3231 * IBSSs to join on other channels. 3232 * @ie: information element(s) to include in the beacon 3233 * @ie_len: length of that 3234 * @beacon_interval: beacon interval to use 3235 * @privacy: this is a protected network, keys will be configured 3236 * after joining 3237 * @control_port: whether user space controls IEEE 802.1X port, i.e., 3238 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 3239 * required to assume that the port is unauthorized until authorized by 3240 * user space. Otherwise, port is marked authorized by default. 3241 * @control_port_over_nl80211: TRUE if userspace expects to exchange control 3242 * port frames over NL80211 instead of the network interface. 3243 * @userspace_handles_dfs: whether user space controls DFS operation, i.e. 3244 * changes the channel when a radar is detected. This is required 3245 * to operate on DFS channels. 3246 * @basic_rates: bitmap of basic rates to use when creating the IBSS 3247 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 3248 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 3249 * will be used in ht_capa. Un-supported values will be ignored. 3250 * @ht_capa_mask: The bits of ht_capa which are to be used. 3251 * @wep_keys: static WEP keys, if not NULL points to an array of 3252 * CFG80211_MAX_WEP_KEYS WEP keys 3253 * @wep_tx_key: key index (0..3) of the default TX static WEP key 3254 */ 3255 struct cfg80211_ibss_params { 3256 const u8 *ssid; 3257 const u8 *bssid; 3258 struct cfg80211_chan_def chandef; 3259 const u8 *ie; 3260 u8 ssid_len, ie_len; 3261 u16 beacon_interval; 3262 u32 basic_rates; 3263 bool channel_fixed; 3264 bool privacy; 3265 bool control_port; 3266 bool control_port_over_nl80211; 3267 bool userspace_handles_dfs; 3268 int mcast_rate[NUM_NL80211_BANDS]; 3269 struct ieee80211_ht_cap ht_capa; 3270 struct ieee80211_ht_cap ht_capa_mask; 3271 struct key_params *wep_keys; 3272 int wep_tx_key; 3273 }; 3274 3275 /** 3276 * struct cfg80211_bss_selection - connection parameters for BSS selection. 3277 * 3278 * @behaviour: requested BSS selection behaviour. 3279 * @param: parameters for requestion behaviour. 3280 * @param.band_pref: preferred band for %NL80211_BSS_SELECT_ATTR_BAND_PREF. 3281 * @param.adjust: parameters for %NL80211_BSS_SELECT_ATTR_RSSI_ADJUST. 3282 */ 3283 struct cfg80211_bss_selection { 3284 enum nl80211_bss_select_attr behaviour; 3285 union { 3286 enum nl80211_band band_pref; 3287 struct cfg80211_bss_select_adjust adjust; 3288 } param; 3289 }; 3290 3291 /** 3292 * struct cfg80211_connect_params - Connection parameters 3293 * 3294 * This structure provides information needed to complete IEEE 802.11 3295 * authentication and association. 3296 * 3297 * @channel: The channel to use or %NULL if not specified (auto-select based 3298 * on scan results) 3299 * @channel_hint: The channel of the recommended BSS for initial connection or 3300 * %NULL if not specified 3301 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 3302 * results) 3303 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or 3304 * %NULL if not specified. Unlike the @bssid parameter, the driver is 3305 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS 3306 * to use. 3307 * @ssid: SSID 3308 * @ssid_len: Length of ssid in octets 3309 * @auth_type: Authentication type (algorithm) 3310 * @ie: IEs for association request 3311 * @ie_len: Length of assoc_ie in octets 3312 * @privacy: indicates whether privacy-enabled APs should be used 3313 * @mfp: indicate whether management frame protection is used 3314 * @crypto: crypto settings 3315 * @key_len: length of WEP key for shared key authentication 3316 * @key_idx: index of WEP key for shared key authentication 3317 * @key: WEP key for shared key authentication 3318 * @flags: See &enum cfg80211_assoc_req_flags 3319 * @bg_scan_period: Background scan period in seconds 3320 * or -1 to indicate that default value is to be used. 3321 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 3322 * will be used in ht_capa. Un-supported values will be ignored. 3323 * @ht_capa_mask: The bits of ht_capa which are to be used. 3324 * @vht_capa: VHT Capability overrides 3325 * @vht_capa_mask: The bits of vht_capa which are to be used. 3326 * @pbss: if set, connect to a PCP instead of AP. Valid for DMG 3327 * networks. 3328 * @bss_select: criteria to be used for BSS selection. 3329 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame. This is used 3330 * to indicate a request to reassociate within the ESS instead of a request 3331 * do the initial association with the ESS. When included, this is set to 3332 * the BSSID of the current association, i.e., to the value that is 3333 * included in the Current AP address field of the Reassociation Request 3334 * frame. 3335 * @fils_erp_username: EAP re-authentication protocol (ERP) username part of the 3336 * NAI or %NULL if not specified. This is used to construct FILS wrapped 3337 * data IE. 3338 * @fils_erp_username_len: Length of @fils_erp_username in octets. 3339 * @fils_erp_realm: EAP re-authentication protocol (ERP) realm part of NAI or 3340 * %NULL if not specified. This specifies the domain name of ER server and 3341 * is used to construct FILS wrapped data IE. 3342 * @fils_erp_realm_len: Length of @fils_erp_realm in octets. 3343 * @fils_erp_next_seq_num: The next sequence number to use in the FILS ERP 3344 * messages. This is also used to construct FILS wrapped data IE. 3345 * @fils_erp_rrk: ERP re-authentication Root Key (rRK) used to derive additional 3346 * keys in FILS or %NULL if not specified. 3347 * @fils_erp_rrk_len: Length of @fils_erp_rrk in octets. 3348 * @want_1x: indicates user-space supports and wants to use 802.1X driver 3349 * offload of 4-way handshake. 3350 * @edmg: define the EDMG channels. 3351 * This may specify multiple channels and bonding options for the driver 3352 * to choose from, based on BSS configuration. 3353 */ 3354 struct cfg80211_connect_params { 3355 struct ieee80211_channel *channel; 3356 struct ieee80211_channel *channel_hint; 3357 const u8 *bssid; 3358 const u8 *bssid_hint; 3359 const u8 *ssid; 3360 size_t ssid_len; 3361 enum nl80211_auth_type auth_type; 3362 const u8 *ie; 3363 size_t ie_len; 3364 bool privacy; 3365 enum nl80211_mfp mfp; 3366 struct cfg80211_crypto_settings crypto; 3367 const u8 *key; 3368 u8 key_len, key_idx; 3369 u32 flags; 3370 int bg_scan_period; 3371 struct ieee80211_ht_cap ht_capa; 3372 struct ieee80211_ht_cap ht_capa_mask; 3373 struct ieee80211_vht_cap vht_capa; 3374 struct ieee80211_vht_cap vht_capa_mask; 3375 bool pbss; 3376 struct cfg80211_bss_selection bss_select; 3377 const u8 *prev_bssid; 3378 const u8 *fils_erp_username; 3379 size_t fils_erp_username_len; 3380 const u8 *fils_erp_realm; 3381 size_t fils_erp_realm_len; 3382 u16 fils_erp_next_seq_num; 3383 const u8 *fils_erp_rrk; 3384 size_t fils_erp_rrk_len; 3385 bool want_1x; 3386 struct ieee80211_edmg edmg; 3387 }; 3388 3389 /** 3390 * enum cfg80211_connect_params_changed - Connection parameters being updated 3391 * 3392 * This enum provides information of all connect parameters that 3393 * have to be updated as part of update_connect_params() call. 3394 * 3395 * @UPDATE_ASSOC_IES: Indicates whether association request IEs are updated 3396 * @UPDATE_FILS_ERP_INFO: Indicates that FILS connection parameters (realm, 3397 * username, erp sequence number and rrk) are updated 3398 * @UPDATE_AUTH_TYPE: Indicates that authentication type is updated 3399 */ 3400 enum cfg80211_connect_params_changed { 3401 UPDATE_ASSOC_IES = BIT(0), 3402 UPDATE_FILS_ERP_INFO = BIT(1), 3403 UPDATE_AUTH_TYPE = BIT(2), 3404 }; 3405 3406 /** 3407 * enum wiphy_params_flags - set_wiphy_params bitfield values 3408 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 3409 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 3410 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 3411 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 3412 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 3413 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled 3414 * @WIPHY_PARAM_TXQ_LIMIT: TXQ packet limit has been changed 3415 * @WIPHY_PARAM_TXQ_MEMORY_LIMIT: TXQ memory limit has been changed 3416 * @WIPHY_PARAM_TXQ_QUANTUM: TXQ scheduler quantum 3417 */ 3418 enum wiphy_params_flags { 3419 WIPHY_PARAM_RETRY_SHORT = BIT(0), 3420 WIPHY_PARAM_RETRY_LONG = BIT(1), 3421 WIPHY_PARAM_FRAG_THRESHOLD = BIT(2), 3422 WIPHY_PARAM_RTS_THRESHOLD = BIT(3), 3423 WIPHY_PARAM_COVERAGE_CLASS = BIT(4), 3424 WIPHY_PARAM_DYN_ACK = BIT(5), 3425 WIPHY_PARAM_TXQ_LIMIT = BIT(6), 3426 WIPHY_PARAM_TXQ_MEMORY_LIMIT = BIT(7), 3427 WIPHY_PARAM_TXQ_QUANTUM = BIT(8), 3428 }; 3429 3430 #define IEEE80211_DEFAULT_AIRTIME_WEIGHT 256 3431 3432 /* The per TXQ device queue limit in airtime */ 3433 #define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L 5000 3434 #define IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H 12000 3435 3436 /* The per interface airtime threshold to switch to lower queue limit */ 3437 #define IEEE80211_AQL_THRESHOLD 24000 3438 3439 /** 3440 * struct cfg80211_pmksa - PMK Security Association 3441 * 3442 * This structure is passed to the set/del_pmksa() method for PMKSA 3443 * caching. 3444 * 3445 * @bssid: The AP's BSSID (may be %NULL). 3446 * @pmkid: The identifier to refer a PMKSA. 3447 * @pmk: The PMK for the PMKSA identified by @pmkid. This is used for key 3448 * derivation by a FILS STA. Otherwise, %NULL. 3449 * @pmk_len: Length of the @pmk. The length of @pmk can differ depending on 3450 * the hash algorithm used to generate this. 3451 * @ssid: SSID to specify the ESS within which a PMKSA is valid when using FILS 3452 * cache identifier (may be %NULL). 3453 * @ssid_len: Length of the @ssid in octets. 3454 * @cache_id: 2-octet cache identifier advertized by a FILS AP identifying the 3455 * scope of PMKSA. This is valid only if @ssid_len is non-zero (may be 3456 * %NULL). 3457 * @pmk_lifetime: Maximum lifetime for PMKSA in seconds 3458 * (dot11RSNAConfigPMKLifetime) or 0 if not specified. 3459 * The configured PMKSA must not be used for PMKSA caching after 3460 * expiration and any keys derived from this PMK become invalid on 3461 * expiration, i.e., the current association must be dropped if the PMK 3462 * used for it expires. 3463 * @pmk_reauth_threshold: Threshold time for reauthentication (percentage of 3464 * PMK lifetime, dot11RSNAConfigPMKReauthThreshold) or 0 if not specified. 3465 * Drivers are expected to trigger a full authentication instead of using 3466 * this PMKSA for caching when reassociating to a new BSS after this 3467 * threshold to generate a new PMK before the current one expires. 3468 */ 3469 struct cfg80211_pmksa { 3470 const u8 *bssid; 3471 const u8 *pmkid; 3472 const u8 *pmk; 3473 size_t pmk_len; 3474 const u8 *ssid; 3475 size_t ssid_len; 3476 const u8 *cache_id; 3477 u32 pmk_lifetime; 3478 u8 pmk_reauth_threshold; 3479 }; 3480 3481 /** 3482 * struct cfg80211_pkt_pattern - packet pattern 3483 * @mask: bitmask where to match pattern and where to ignore bytes, 3484 * one bit per byte, in same format as nl80211 3485 * @pattern: bytes to match where bitmask is 1 3486 * @pattern_len: length of pattern (in bytes) 3487 * @pkt_offset: packet offset (in bytes) 3488 * 3489 * Internal note: @mask and @pattern are allocated in one chunk of 3490 * memory, free @mask only! 3491 */ 3492 struct cfg80211_pkt_pattern { 3493 const u8 *mask, *pattern; 3494 int pattern_len; 3495 int pkt_offset; 3496 }; 3497 3498 /** 3499 * struct cfg80211_wowlan_tcp - TCP connection parameters 3500 * 3501 * @sock: (internal) socket for source port allocation 3502 * @src: source IP address 3503 * @dst: destination IP address 3504 * @dst_mac: destination MAC address 3505 * @src_port: source port 3506 * @dst_port: destination port 3507 * @payload_len: data payload length 3508 * @payload: data payload buffer 3509 * @payload_seq: payload sequence stamping configuration 3510 * @data_interval: interval at which to send data packets 3511 * @wake_len: wakeup payload match length 3512 * @wake_data: wakeup payload match data 3513 * @wake_mask: wakeup payload match mask 3514 * @tokens_size: length of the tokens buffer 3515 * @payload_tok: payload token usage configuration 3516 */ 3517 struct cfg80211_wowlan_tcp { 3518 struct socket *sock; 3519 __be32 src, dst; 3520 u16 src_port, dst_port; 3521 u8 dst_mac[ETH_ALEN]; 3522 int payload_len; 3523 const u8 *payload; 3524 struct nl80211_wowlan_tcp_data_seq payload_seq; 3525 u32 data_interval; 3526 u32 wake_len; 3527 const u8 *wake_data, *wake_mask; 3528 u32 tokens_size; 3529 /* must be last, variable member */ 3530 struct nl80211_wowlan_tcp_data_token payload_tok; 3531 }; 3532 3533 /** 3534 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 3535 * 3536 * This structure defines the enabled WoWLAN triggers for the device. 3537 * @any: wake up on any activity -- special trigger if device continues 3538 * operating as normal during suspend 3539 * @disconnect: wake up if getting disconnected 3540 * @magic_pkt: wake up on receiving magic packet 3541 * @patterns: wake up on receiving packet matching a pattern 3542 * @n_patterns: number of patterns 3543 * @gtk_rekey_failure: wake up on GTK rekey failure 3544 * @eap_identity_req: wake up on EAP identity request packet 3545 * @four_way_handshake: wake up on 4-way handshake 3546 * @rfkill_release: wake up when rfkill is released 3547 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h. 3548 * NULL if not configured. 3549 * @nd_config: configuration for the scan to be used for net detect wake. 3550 */ 3551 struct cfg80211_wowlan { 3552 bool any, disconnect, magic_pkt, gtk_rekey_failure, 3553 eap_identity_req, four_way_handshake, 3554 rfkill_release; 3555 struct cfg80211_pkt_pattern *patterns; 3556 struct cfg80211_wowlan_tcp *tcp; 3557 int n_patterns; 3558 struct cfg80211_sched_scan_request *nd_config; 3559 }; 3560 3561 /** 3562 * struct cfg80211_coalesce_rules - Coalesce rule parameters 3563 * 3564 * This structure defines coalesce rule for the device. 3565 * @delay: maximum coalescing delay in msecs. 3566 * @condition: condition for packet coalescence. 3567 * see &enum nl80211_coalesce_condition. 3568 * @patterns: array of packet patterns 3569 * @n_patterns: number of patterns 3570 */ 3571 struct cfg80211_coalesce_rules { 3572 int delay; 3573 enum nl80211_coalesce_condition condition; 3574 struct cfg80211_pkt_pattern *patterns; 3575 int n_patterns; 3576 }; 3577 3578 /** 3579 * struct cfg80211_coalesce - Packet coalescing settings 3580 * 3581 * This structure defines coalescing settings. 3582 * @rules: array of coalesce rules 3583 * @n_rules: number of rules 3584 */ 3585 struct cfg80211_coalesce { 3586 int n_rules; 3587 struct cfg80211_coalesce_rules rules[] __counted_by(n_rules); 3588 }; 3589 3590 /** 3591 * struct cfg80211_wowlan_nd_match - information about the match 3592 * 3593 * @ssid: SSID of the match that triggered the wake up 3594 * @n_channels: Number of channels where the match occurred. This 3595 * value may be zero if the driver can't report the channels. 3596 * @channels: center frequencies of the channels where a match 3597 * occurred (in MHz) 3598 */ 3599 struct cfg80211_wowlan_nd_match { 3600 struct cfg80211_ssid ssid; 3601 int n_channels; 3602 u32 channels[] __counted_by(n_channels); 3603 }; 3604 3605 /** 3606 * struct cfg80211_wowlan_nd_info - net detect wake up information 3607 * 3608 * @n_matches: Number of match information instances provided in 3609 * @matches. This value may be zero if the driver can't provide 3610 * match information. 3611 * @matches: Array of pointers to matches containing information about 3612 * the matches that triggered the wake up. 3613 */ 3614 struct cfg80211_wowlan_nd_info { 3615 int n_matches; 3616 struct cfg80211_wowlan_nd_match *matches[] __counted_by(n_matches); 3617 }; 3618 3619 /** 3620 * struct cfg80211_wowlan_wakeup - wakeup report 3621 * @disconnect: woke up by getting disconnected 3622 * @magic_pkt: woke up by receiving magic packet 3623 * @gtk_rekey_failure: woke up by GTK rekey failure 3624 * @eap_identity_req: woke up by EAP identity request packet 3625 * @four_way_handshake: woke up by 4-way handshake 3626 * @rfkill_release: woke up by rfkill being released 3627 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern 3628 * @packet_present_len: copied wakeup packet data 3629 * @packet_len: original wakeup packet length 3630 * @packet: The packet causing the wakeup, if any. 3631 * @packet_80211: For pattern match, magic packet and other data 3632 * frame triggers an 802.3 frame should be reported, for 3633 * disconnect due to deauth 802.11 frame. This indicates which 3634 * it is. 3635 * @tcp_match: TCP wakeup packet received 3636 * @tcp_connlost: TCP connection lost or failed to establish 3637 * @tcp_nomoretokens: TCP data ran out of tokens 3638 * @net_detect: if not %NULL, woke up because of net detect 3639 * @unprot_deauth_disassoc: woke up due to unprotected deauth or 3640 * disassoc frame (in MFP). 3641 */ 3642 struct cfg80211_wowlan_wakeup { 3643 bool disconnect, magic_pkt, gtk_rekey_failure, 3644 eap_identity_req, four_way_handshake, 3645 rfkill_release, packet_80211, 3646 tcp_match, tcp_connlost, tcp_nomoretokens, 3647 unprot_deauth_disassoc; 3648 s32 pattern_idx; 3649 u32 packet_present_len, packet_len; 3650 const void *packet; 3651 struct cfg80211_wowlan_nd_info *net_detect; 3652 }; 3653 3654 /** 3655 * struct cfg80211_gtk_rekey_data - rekey data 3656 * @kek: key encryption key (@kek_len bytes) 3657 * @kck: key confirmation key (@kck_len bytes) 3658 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes) 3659 * @kek_len: length of kek 3660 * @kck_len: length of kck 3661 * @akm: akm (oui, id) 3662 */ 3663 struct cfg80211_gtk_rekey_data { 3664 const u8 *kek, *kck, *replay_ctr; 3665 u32 akm; 3666 u8 kek_len, kck_len; 3667 }; 3668 3669 /** 3670 * struct cfg80211_update_ft_ies_params - FT IE Information 3671 * 3672 * This structure provides information needed to update the fast transition IE 3673 * 3674 * @md: The Mobility Domain ID, 2 Octet value 3675 * @ie: Fast Transition IEs 3676 * @ie_len: Length of ft_ie in octets 3677 */ 3678 struct cfg80211_update_ft_ies_params { 3679 u16 md; 3680 const u8 *ie; 3681 size_t ie_len; 3682 }; 3683 3684 /** 3685 * struct cfg80211_mgmt_tx_params - mgmt tx parameters 3686 * 3687 * This structure provides information needed to transmit a mgmt frame 3688 * 3689 * @chan: channel to use 3690 * @offchan: indicates whether off channel operation is required 3691 * @wait: duration for ROC 3692 * @buf: buffer to transmit 3693 * @len: buffer length 3694 * @no_cck: don't use cck rates for this frame 3695 * @dont_wait_for_ack: tells the low level not to wait for an ack 3696 * @n_csa_offsets: length of csa_offsets array 3697 * @csa_offsets: array of all the csa offsets in the frame 3698 * @link_id: for MLO, the link ID to transmit on, -1 if not given; note 3699 * that the link ID isn't validated (much), it's in range but the 3700 * link might not exist (or be used by the receiver STA) 3701 */ 3702 struct cfg80211_mgmt_tx_params { 3703 struct ieee80211_channel *chan; 3704 bool offchan; 3705 unsigned int wait; 3706 const u8 *buf; 3707 size_t len; 3708 bool no_cck; 3709 bool dont_wait_for_ack; 3710 int n_csa_offsets; 3711 const u16 *csa_offsets; 3712 int link_id; 3713 }; 3714 3715 /** 3716 * struct cfg80211_dscp_exception - DSCP exception 3717 * 3718 * @dscp: DSCP value that does not adhere to the user priority range definition 3719 * @up: user priority value to which the corresponding DSCP value belongs 3720 */ 3721 struct cfg80211_dscp_exception { 3722 u8 dscp; 3723 u8 up; 3724 }; 3725 3726 /** 3727 * struct cfg80211_dscp_range - DSCP range definition for user priority 3728 * 3729 * @low: lowest DSCP value of this user priority range, inclusive 3730 * @high: highest DSCP value of this user priority range, inclusive 3731 */ 3732 struct cfg80211_dscp_range { 3733 u8 low; 3734 u8 high; 3735 }; 3736 3737 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */ 3738 #define IEEE80211_QOS_MAP_MAX_EX 21 3739 #define IEEE80211_QOS_MAP_LEN_MIN 16 3740 #define IEEE80211_QOS_MAP_LEN_MAX \ 3741 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX) 3742 3743 /** 3744 * struct cfg80211_qos_map - QoS Map Information 3745 * 3746 * This struct defines the Interworking QoS map setting for DSCP values 3747 * 3748 * @num_des: number of DSCP exceptions (0..21) 3749 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from 3750 * the user priority DSCP range definition 3751 * @up: DSCP range definition for a particular user priority 3752 */ 3753 struct cfg80211_qos_map { 3754 u8 num_des; 3755 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX]; 3756 struct cfg80211_dscp_range up[8]; 3757 }; 3758 3759 /** 3760 * struct cfg80211_nan_conf - NAN configuration 3761 * 3762 * This struct defines NAN configuration parameters 3763 * 3764 * @master_pref: master preference (1 - 255) 3765 * @bands: operating bands, a bitmap of &enum nl80211_band values. 3766 * For instance, for NL80211_BAND_2GHZ, bit 0 would be set 3767 * (i.e. BIT(NL80211_BAND_2GHZ)). 3768 */ 3769 struct cfg80211_nan_conf { 3770 u8 master_pref; 3771 u8 bands; 3772 }; 3773 3774 /** 3775 * enum cfg80211_nan_conf_changes - indicates changed fields in NAN 3776 * configuration 3777 * 3778 * @CFG80211_NAN_CONF_CHANGED_PREF: master preference 3779 * @CFG80211_NAN_CONF_CHANGED_BANDS: operating bands 3780 */ 3781 enum cfg80211_nan_conf_changes { 3782 CFG80211_NAN_CONF_CHANGED_PREF = BIT(0), 3783 CFG80211_NAN_CONF_CHANGED_BANDS = BIT(1), 3784 }; 3785 3786 /** 3787 * struct cfg80211_nan_func_filter - a NAN function Rx / Tx filter 3788 * 3789 * @filter: the content of the filter 3790 * @len: the length of the filter 3791 */ 3792 struct cfg80211_nan_func_filter { 3793 const u8 *filter; 3794 u8 len; 3795 }; 3796 3797 /** 3798 * struct cfg80211_nan_func - a NAN function 3799 * 3800 * @type: &enum nl80211_nan_function_type 3801 * @service_id: the service ID of the function 3802 * @publish_type: &nl80211_nan_publish_type 3803 * @close_range: if true, the range should be limited. Threshold is 3804 * implementation specific. 3805 * @publish_bcast: if true, the solicited publish should be broadcasted 3806 * @subscribe_active: if true, the subscribe is active 3807 * @followup_id: the instance ID for follow up 3808 * @followup_reqid: the requester instance ID for follow up 3809 * @followup_dest: MAC address of the recipient of the follow up 3810 * @ttl: time to live counter in DW. 3811 * @serv_spec_info: Service Specific Info 3812 * @serv_spec_info_len: Service Specific Info length 3813 * @srf_include: if true, SRF is inclusive 3814 * @srf_bf: Bloom Filter 3815 * @srf_bf_len: Bloom Filter length 3816 * @srf_bf_idx: Bloom Filter index 3817 * @srf_macs: SRF MAC addresses 3818 * @srf_num_macs: number of MAC addresses in SRF 3819 * @rx_filters: rx filters that are matched with corresponding peer's tx_filter 3820 * @tx_filters: filters that should be transmitted in the SDF. 3821 * @num_rx_filters: length of &rx_filters. 3822 * @num_tx_filters: length of &tx_filters. 3823 * @instance_id: driver allocated id of the function. 3824 * @cookie: unique NAN function identifier. 3825 */ 3826 struct cfg80211_nan_func { 3827 enum nl80211_nan_function_type type; 3828 u8 service_id[NL80211_NAN_FUNC_SERVICE_ID_LEN]; 3829 u8 publish_type; 3830 bool close_range; 3831 bool publish_bcast; 3832 bool subscribe_active; 3833 u8 followup_id; 3834 u8 followup_reqid; 3835 struct mac_address followup_dest; 3836 u32 ttl; 3837 const u8 *serv_spec_info; 3838 u8 serv_spec_info_len; 3839 bool srf_include; 3840 const u8 *srf_bf; 3841 u8 srf_bf_len; 3842 u8 srf_bf_idx; 3843 struct mac_address *srf_macs; 3844 int srf_num_macs; 3845 struct cfg80211_nan_func_filter *rx_filters; 3846 struct cfg80211_nan_func_filter *tx_filters; 3847 u8 num_tx_filters; 3848 u8 num_rx_filters; 3849 u8 instance_id; 3850 u64 cookie; 3851 }; 3852 3853 /** 3854 * struct cfg80211_pmk_conf - PMK configuration 3855 * 3856 * @aa: authenticator address 3857 * @pmk_len: PMK length in bytes. 3858 * @pmk: the PMK material 3859 * @pmk_r0_name: PMK-R0 Name. NULL if not applicable (i.e., the PMK 3860 * is not PMK-R0). When pmk_r0_name is not NULL, the pmk field 3861 * holds PMK-R0. 3862 */ 3863 struct cfg80211_pmk_conf { 3864 const u8 *aa; 3865 u8 pmk_len; 3866 const u8 *pmk; 3867 const u8 *pmk_r0_name; 3868 }; 3869 3870 /** 3871 * struct cfg80211_external_auth_params - Trigger External authentication. 3872 * 3873 * Commonly used across the external auth request and event interfaces. 3874 * 3875 * @action: action type / trigger for external authentication. Only significant 3876 * for the authentication request event interface (driver to user space). 3877 * @bssid: BSSID of the peer with which the authentication has 3878 * to happen. Used by both the authentication request event and 3879 * authentication response command interface. 3880 * @ssid: SSID of the AP. Used by both the authentication request event and 3881 * authentication response command interface. 3882 * @key_mgmt_suite: AKM suite of the respective authentication. Used by the 3883 * authentication request event interface. 3884 * @status: status code, %WLAN_STATUS_SUCCESS for successful authentication, 3885 * use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space cannot give you 3886 * the real status code for failures. Used only for the authentication 3887 * response command interface (user space to driver). 3888 * @pmkid: The identifier to refer a PMKSA. 3889 * @mld_addr: MLD address of the peer. Used by the authentication request event 3890 * interface. Driver indicates this to enable MLO during the authentication 3891 * offload to user space. Driver shall look at %NL80211_ATTR_MLO_SUPPORT 3892 * flag capability in NL80211_CMD_CONNECT to know whether the user space 3893 * supports enabling MLO during the authentication offload. 3894 * User space should use the address of the interface (on which the 3895 * authentication request event reported) as self MLD address. User space 3896 * and driver should use MLD addresses in RA, TA and BSSID fields of 3897 * authentication frames sent or received via cfg80211. The driver 3898 * translates the MLD addresses to/from link addresses based on the link 3899 * chosen for the authentication. 3900 */ 3901 struct cfg80211_external_auth_params { 3902 enum nl80211_external_auth_action action; 3903 u8 bssid[ETH_ALEN] __aligned(2); 3904 struct cfg80211_ssid ssid; 3905 unsigned int key_mgmt_suite; 3906 u16 status; 3907 const u8 *pmkid; 3908 u8 mld_addr[ETH_ALEN] __aligned(2); 3909 }; 3910 3911 /** 3912 * struct cfg80211_ftm_responder_stats - FTM responder statistics 3913 * 3914 * @filled: bitflag of flags using the bits of &enum nl80211_ftm_stats to 3915 * indicate the relevant values in this struct for them 3916 * @success_num: number of FTM sessions in which all frames were successfully 3917 * answered 3918 * @partial_num: number of FTM sessions in which part of frames were 3919 * successfully answered 3920 * @failed_num: number of failed FTM sessions 3921 * @asap_num: number of ASAP FTM sessions 3922 * @non_asap_num: number of non-ASAP FTM sessions 3923 * @total_duration_ms: total sessions durations - gives an indication 3924 * of how much time the responder was busy 3925 * @unknown_triggers_num: number of unknown FTM triggers - triggers from 3926 * initiators that didn't finish successfully the negotiation phase with 3927 * the responder 3928 * @reschedule_requests_num: number of FTM reschedule requests - initiator asks 3929 * for a new scheduling although it already has scheduled FTM slot 3930 * @out_of_window_triggers_num: total FTM triggers out of scheduled window 3931 */ 3932 struct cfg80211_ftm_responder_stats { 3933 u32 filled; 3934 u32 success_num; 3935 u32 partial_num; 3936 u32 failed_num; 3937 u32 asap_num; 3938 u32 non_asap_num; 3939 u64 total_duration_ms; 3940 u32 unknown_triggers_num; 3941 u32 reschedule_requests_num; 3942 u32 out_of_window_triggers_num; 3943 }; 3944 3945 /** 3946 * struct cfg80211_pmsr_ftm_result - FTM result 3947 * @failure_reason: if this measurement failed (PMSR status is 3948 * %NL80211_PMSR_STATUS_FAILURE), this gives a more precise 3949 * reason than just "failure" 3950 * @burst_index: if reporting partial results, this is the index 3951 * in [0 .. num_bursts-1] of the burst that's being reported 3952 * @num_ftmr_attempts: number of FTM request frames transmitted 3953 * @num_ftmr_successes: number of FTM request frames acked 3954 * @busy_retry_time: if failure_reason is %NL80211_PMSR_FTM_FAILURE_PEER_BUSY, 3955 * fill this to indicate in how many seconds a retry is deemed possible 3956 * by the responder 3957 * @num_bursts_exp: actual number of bursts exponent negotiated 3958 * @burst_duration: actual burst duration negotiated 3959 * @ftms_per_burst: actual FTMs per burst negotiated 3960 * @lci_len: length of LCI information (if present) 3961 * @civicloc_len: length of civic location information (if present) 3962 * @lci: LCI data (may be %NULL) 3963 * @civicloc: civic location data (may be %NULL) 3964 * @rssi_avg: average RSSI over FTM action frames reported 3965 * @rssi_spread: spread of the RSSI over FTM action frames reported 3966 * @tx_rate: bitrate for transmitted FTM action frame response 3967 * @rx_rate: bitrate of received FTM action frame 3968 * @rtt_avg: average of RTTs measured (must have either this or @dist_avg) 3969 * @rtt_variance: variance of RTTs measured (note that standard deviation is 3970 * the square root of the variance) 3971 * @rtt_spread: spread of the RTTs measured 3972 * @dist_avg: average of distances (mm) measured 3973 * (must have either this or @rtt_avg) 3974 * @dist_variance: variance of distances measured (see also @rtt_variance) 3975 * @dist_spread: spread of distances measured (see also @rtt_spread) 3976 * @num_ftmr_attempts_valid: @num_ftmr_attempts is valid 3977 * @num_ftmr_successes_valid: @num_ftmr_successes is valid 3978 * @rssi_avg_valid: @rssi_avg is valid 3979 * @rssi_spread_valid: @rssi_spread is valid 3980 * @tx_rate_valid: @tx_rate is valid 3981 * @rx_rate_valid: @rx_rate is valid 3982 * @rtt_avg_valid: @rtt_avg is valid 3983 * @rtt_variance_valid: @rtt_variance is valid 3984 * @rtt_spread_valid: @rtt_spread is valid 3985 * @dist_avg_valid: @dist_avg is valid 3986 * @dist_variance_valid: @dist_variance is valid 3987 * @dist_spread_valid: @dist_spread is valid 3988 */ 3989 struct cfg80211_pmsr_ftm_result { 3990 const u8 *lci; 3991 const u8 *civicloc; 3992 unsigned int lci_len; 3993 unsigned int civicloc_len; 3994 enum nl80211_peer_measurement_ftm_failure_reasons failure_reason; 3995 u32 num_ftmr_attempts, num_ftmr_successes; 3996 s16 burst_index; 3997 u8 busy_retry_time; 3998 u8 num_bursts_exp; 3999 u8 burst_duration; 4000 u8 ftms_per_burst; 4001 s32 rssi_avg; 4002 s32 rssi_spread; 4003 struct rate_info tx_rate, rx_rate; 4004 s64 rtt_avg; 4005 s64 rtt_variance; 4006 s64 rtt_spread; 4007 s64 dist_avg; 4008 s64 dist_variance; 4009 s64 dist_spread; 4010 4011 u16 num_ftmr_attempts_valid:1, 4012 num_ftmr_successes_valid:1, 4013 rssi_avg_valid:1, 4014 rssi_spread_valid:1, 4015 tx_rate_valid:1, 4016 rx_rate_valid:1, 4017 rtt_avg_valid:1, 4018 rtt_variance_valid:1, 4019 rtt_spread_valid:1, 4020 dist_avg_valid:1, 4021 dist_variance_valid:1, 4022 dist_spread_valid:1; 4023 }; 4024 4025 /** 4026 * struct cfg80211_pmsr_result - peer measurement result 4027 * @addr: address of the peer 4028 * @host_time: host time (use ktime_get_boottime() adjust to the time when the 4029 * measurement was made) 4030 * @ap_tsf: AP's TSF at measurement time 4031 * @status: status of the measurement 4032 * @final: if reporting partial results, mark this as the last one; if not 4033 * reporting partial results always set this flag 4034 * @ap_tsf_valid: indicates the @ap_tsf value is valid 4035 * @type: type of the measurement reported, note that we only support reporting 4036 * one type at a time, but you can report multiple results separately and 4037 * they're all aggregated for userspace. 4038 * @ftm: FTM result 4039 */ 4040 struct cfg80211_pmsr_result { 4041 u64 host_time, ap_tsf; 4042 enum nl80211_peer_measurement_status status; 4043 4044 u8 addr[ETH_ALEN]; 4045 4046 u8 final:1, 4047 ap_tsf_valid:1; 4048 4049 enum nl80211_peer_measurement_type type; 4050 4051 union { 4052 struct cfg80211_pmsr_ftm_result ftm; 4053 }; 4054 }; 4055 4056 /** 4057 * struct cfg80211_pmsr_ftm_request_peer - FTM request data 4058 * @requested: indicates FTM is requested 4059 * @preamble: frame preamble to use 4060 * @burst_period: burst period to use 4061 * @asap: indicates to use ASAP mode 4062 * @num_bursts_exp: number of bursts exponent 4063 * @burst_duration: burst duration 4064 * @ftms_per_burst: number of FTMs per burst 4065 * @ftmr_retries: number of retries for FTM request 4066 * @request_lci: request LCI information 4067 * @request_civicloc: request civic location information 4068 * @trigger_based: use trigger based ranging for the measurement 4069 * If neither @trigger_based nor @non_trigger_based is set, 4070 * EDCA based ranging will be used. 4071 * @non_trigger_based: use non trigger based ranging for the measurement 4072 * If neither @trigger_based nor @non_trigger_based is set, 4073 * EDCA based ranging will be used. 4074 * @lmr_feedback: negotiate for I2R LMR feedback. Only valid if either 4075 * @trigger_based or @non_trigger_based is set. 4076 * @bss_color: the bss color of the responder. Optional. Set to zero to 4077 * indicate the driver should set the BSS color. Only valid if 4078 * @non_trigger_based or @trigger_based is set. 4079 * 4080 * See also nl80211 for the respective attribute documentation. 4081 */ 4082 struct cfg80211_pmsr_ftm_request_peer { 4083 enum nl80211_preamble preamble; 4084 u16 burst_period; 4085 u8 requested:1, 4086 asap:1, 4087 request_lci:1, 4088 request_civicloc:1, 4089 trigger_based:1, 4090 non_trigger_based:1, 4091 lmr_feedback:1; 4092 u8 num_bursts_exp; 4093 u8 burst_duration; 4094 u8 ftms_per_burst; 4095 u8 ftmr_retries; 4096 u8 bss_color; 4097 }; 4098 4099 /** 4100 * struct cfg80211_pmsr_request_peer - peer data for a peer measurement request 4101 * @addr: MAC address 4102 * @chandef: channel to use 4103 * @report_ap_tsf: report the associated AP's TSF 4104 * @ftm: FTM data, see &struct cfg80211_pmsr_ftm_request_peer 4105 */ 4106 struct cfg80211_pmsr_request_peer { 4107 u8 addr[ETH_ALEN]; 4108 struct cfg80211_chan_def chandef; 4109 u8 report_ap_tsf:1; 4110 struct cfg80211_pmsr_ftm_request_peer ftm; 4111 }; 4112 4113 /** 4114 * struct cfg80211_pmsr_request - peer measurement request 4115 * @cookie: cookie, set by cfg80211 4116 * @nl_portid: netlink portid - used by cfg80211 4117 * @drv_data: driver data for this request, if required for aborting, 4118 * not otherwise freed or anything by cfg80211 4119 * @mac_addr: MAC address used for (randomised) request 4120 * @mac_addr_mask: MAC address mask used for randomisation, bits that 4121 * are 0 in the mask should be randomised, bits that are 1 should 4122 * be taken from the @mac_addr 4123 * @list: used by cfg80211 to hold on to the request 4124 * @timeout: timeout (in milliseconds) for the whole operation, if 4125 * zero it means there's no timeout 4126 * @n_peers: number of peers to do measurements with 4127 * @peers: per-peer measurement request data 4128 */ 4129 struct cfg80211_pmsr_request { 4130 u64 cookie; 4131 void *drv_data; 4132 u32 n_peers; 4133 u32 nl_portid; 4134 4135 u32 timeout; 4136 4137 u8 mac_addr[ETH_ALEN] __aligned(2); 4138 u8 mac_addr_mask[ETH_ALEN] __aligned(2); 4139 4140 struct list_head list; 4141 4142 struct cfg80211_pmsr_request_peer peers[] __counted_by(n_peers); 4143 }; 4144 4145 /** 4146 * struct cfg80211_update_owe_info - OWE Information 4147 * 4148 * This structure provides information needed for the drivers to offload OWE 4149 * (Opportunistic Wireless Encryption) processing to the user space. 4150 * 4151 * Commonly used across update_owe_info request and event interfaces. 4152 * 4153 * @peer: MAC address of the peer device for which the OWE processing 4154 * has to be done. 4155 * @status: status code, %WLAN_STATUS_SUCCESS for successful OWE info 4156 * processing, use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space 4157 * cannot give you the real status code for failures. Used only for 4158 * OWE update request command interface (user space to driver). 4159 * @ie: IEs obtained from the peer or constructed by the user space. These are 4160 * the IEs of the remote peer in the event from the host driver and 4161 * the constructed IEs by the user space in the request interface. 4162 * @ie_len: Length of IEs in octets. 4163 * @assoc_link_id: MLO link ID of the AP, with which (re)association requested 4164 * by peer. This will be filled by driver for both MLO and non-MLO station 4165 * connections when the AP affiliated with an MLD. For non-MLD AP mode, it 4166 * will be -1. Used only with OWE update event (driver to user space). 4167 * @peer_mld_addr: For MLO connection, MLD address of the peer. For non-MLO 4168 * connection, it will be all zeros. This is applicable only when 4169 * @assoc_link_id is not -1, i.e., the AP affiliated with an MLD. Used only 4170 * with OWE update event (driver to user space). 4171 */ 4172 struct cfg80211_update_owe_info { 4173 u8 peer[ETH_ALEN] __aligned(2); 4174 u16 status; 4175 const u8 *ie; 4176 size_t ie_len; 4177 int assoc_link_id; 4178 u8 peer_mld_addr[ETH_ALEN] __aligned(2); 4179 }; 4180 4181 /** 4182 * struct mgmt_frame_regs - management frame registrations data 4183 * @global_stypes: bitmap of management frame subtypes registered 4184 * for the entire device 4185 * @interface_stypes: bitmap of management frame subtypes registered 4186 * for the given interface 4187 * @global_mcast_stypes: mcast RX is needed globally for these subtypes 4188 * @interface_mcast_stypes: mcast RX is needed on this interface 4189 * for these subtypes 4190 */ 4191 struct mgmt_frame_regs { 4192 u32 global_stypes, interface_stypes; 4193 u32 global_mcast_stypes, interface_mcast_stypes; 4194 }; 4195 4196 /** 4197 * struct cfg80211_ops - backend description for wireless configuration 4198 * 4199 * This struct is registered by fullmac card drivers and/or wireless stacks 4200 * in order to handle configuration requests on their interfaces. 4201 * 4202 * All callbacks except where otherwise noted should return 0 4203 * on success or a negative error code. 4204 * 4205 * All operations are invoked with the wiphy mutex held. The RTNL may be 4206 * held in addition (due to wireless extensions) but this cannot be relied 4207 * upon except in cases where documented below. Note that due to ordering, 4208 * the RTNL also cannot be acquired in any handlers. 4209 * 4210 * @suspend: wiphy device needs to be suspended. The variable @wow will 4211 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 4212 * configured for the device. 4213 * @resume: wiphy device needs to be resumed 4214 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback 4215 * to call device_set_wakeup_enable() to enable/disable wakeup from 4216 * the device. 4217 * 4218 * @add_virtual_intf: create a new virtual interface with the given name, 4219 * must set the struct wireless_dev's iftype. Beware: You must create 4220 * the new netdev in the wiphy's network namespace! Returns the struct 4221 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must 4222 * also set the address member in the wdev. 4223 * This additionally holds the RTNL to be able to do netdev changes. 4224 * 4225 * @del_virtual_intf: remove the virtual interface 4226 * This additionally holds the RTNL to be able to do netdev changes. 4227 * 4228 * @change_virtual_intf: change type/configuration of virtual interface, 4229 * keep the struct wireless_dev's iftype updated. 4230 * This additionally holds the RTNL to be able to do netdev changes. 4231 * 4232 * @add_intf_link: Add a new MLO link to the given interface. Note that 4233 * the wdev->link[] data structure has been updated, so the new link 4234 * address is available. 4235 * @del_intf_link: Remove an MLO link from the given interface. 4236 * 4237 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 4238 * when adding a group key. @link_id will be -1 for non-MLO connection. 4239 * For MLO connection, @link_id will be >= 0 for group key and -1 for 4240 * pairwise key, @mac_addr will be peer's MLD address for MLO pairwise key. 4241 * 4242 * @get_key: get information about the key with the given parameters. 4243 * @mac_addr will be %NULL when requesting information for a group 4244 * key. All pointers given to the @callback function need not be valid 4245 * after it returns. This function should return an error if it is 4246 * not possible to retrieve the key, -ENOENT if it doesn't exist. 4247 * @link_id will be -1 for non-MLO connection. For MLO connection, 4248 * @link_id will be >= 0 for group key and -1 for pairwise key, @mac_addr 4249 * will be peer's MLD address for MLO pairwise key. 4250 * 4251 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 4252 * and @key_index, return -ENOENT if the key doesn't exist. @link_id will 4253 * be -1 for non-MLO connection. For MLO connection, @link_id will be >= 0 4254 * for group key and -1 for pairwise key, @mac_addr will be peer's MLD 4255 * address for MLO pairwise key. 4256 * 4257 * @set_default_key: set the default key on an interface. @link_id will be >= 0 4258 * for MLO connection and -1 for non-MLO connection. 4259 * 4260 * @set_default_mgmt_key: set the default management frame key on an interface. 4261 * @link_id will be >= 0 for MLO connection and -1 for non-MLO connection. 4262 * 4263 * @set_default_beacon_key: set the default Beacon frame key on an interface. 4264 * @link_id will be >= 0 for MLO connection and -1 for non-MLO connection. 4265 * 4266 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 4267 * 4268 * @start_ap: Start acting in AP mode defined by the parameters. 4269 * @change_beacon: Change the beacon parameters for an access point mode 4270 * interface. This should reject the call when AP mode wasn't started. 4271 * @stop_ap: Stop being an AP, including stopping beaconing. 4272 * 4273 * @add_station: Add a new station. 4274 * @del_station: Remove a station 4275 * @change_station: Modify a given station. Note that flags changes are not much 4276 * validated in cfg80211, in particular the auth/assoc/authorized flags 4277 * might come to the driver in invalid combinations -- make sure to check 4278 * them, also against the existing state! Drivers must call 4279 * cfg80211_check_station_change() to validate the information. 4280 * @get_station: get station information for the station identified by @mac 4281 * @dump_station: dump station callback -- resume dump at index @idx 4282 * 4283 * @add_mpath: add a fixed mesh path 4284 * @del_mpath: delete a given mesh path 4285 * @change_mpath: change a given mesh path 4286 * @get_mpath: get a mesh path for the given parameters 4287 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 4288 * @get_mpp: get a mesh proxy path for the given parameters 4289 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx 4290 * @join_mesh: join the mesh network with the specified parameters 4291 * (invoked with the wireless_dev mutex held) 4292 * @leave_mesh: leave the current mesh network 4293 * (invoked with the wireless_dev mutex held) 4294 * 4295 * @get_mesh_config: Get the current mesh configuration 4296 * 4297 * @update_mesh_config: Update mesh parameters on a running mesh. 4298 * The mask is a bitfield which tells us which parameters to 4299 * set, and which to leave alone. 4300 * 4301 * @change_bss: Modify parameters for a given BSS. 4302 * 4303 * @inform_bss: Called by cfg80211 while being informed about new BSS data 4304 * for every BSS found within the reported data or frame. This is called 4305 * from within the cfg8011 inform_bss handlers while holding the bss_lock. 4306 * The data parameter is passed through from drv_data inside 4307 * struct cfg80211_inform_bss. 4308 * The new IE data for the BSS is explicitly passed. 4309 * 4310 * @set_txq_params: Set TX queue parameters 4311 * 4312 * @libertas_set_mesh_channel: Only for backward compatibility for libertas, 4313 * as it doesn't implement join_mesh and needs to set the channel to 4314 * join the mesh instead. 4315 * 4316 * @set_monitor_channel: Set the monitor mode channel for the device. If other 4317 * interfaces are active this callback should reject the configuration. 4318 * If no interfaces are active or the device is down, the channel should 4319 * be stored for when a monitor interface becomes active. 4320 * 4321 * @scan: Request to do a scan. If returning zero, the scan request is given 4322 * the driver, and will be valid until passed to cfg80211_scan_done(). 4323 * For scan results, call cfg80211_inform_bss(); you can call this outside 4324 * the scan/scan_done bracket too. 4325 * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall 4326 * indicate the status of the scan through cfg80211_scan_done(). 4327 * 4328 * @auth: Request to authenticate with the specified peer 4329 * (invoked with the wireless_dev mutex held) 4330 * @assoc: Request to (re)associate with the specified peer 4331 * (invoked with the wireless_dev mutex held) 4332 * @deauth: Request to deauthenticate from the specified peer 4333 * (invoked with the wireless_dev mutex held) 4334 * @disassoc: Request to disassociate from the specified peer 4335 * (invoked with the wireless_dev mutex held) 4336 * 4337 * @connect: Connect to the ESS with the specified parameters. When connected, 4338 * call cfg80211_connect_result()/cfg80211_connect_bss() with status code 4339 * %WLAN_STATUS_SUCCESS. If the connection fails for some reason, call 4340 * cfg80211_connect_result()/cfg80211_connect_bss() with the status code 4341 * from the AP or cfg80211_connect_timeout() if no frame with status code 4342 * was received. 4343 * The driver is allowed to roam to other BSSes within the ESS when the 4344 * other BSS matches the connect parameters. When such roaming is initiated 4345 * by the driver, the driver is expected to verify that the target matches 4346 * the configured security parameters and to use Reassociation Request 4347 * frame instead of Association Request frame. 4348 * The connect function can also be used to request the driver to perform a 4349 * specific roam when connected to an ESS. In that case, the prev_bssid 4350 * parameter is set to the BSSID of the currently associated BSS as an 4351 * indication of requesting reassociation. 4352 * In both the driver-initiated and new connect() call initiated roaming 4353 * cases, the result of roaming is indicated with a call to 4354 * cfg80211_roamed(). (invoked with the wireless_dev mutex held) 4355 * @update_connect_params: Update the connect parameters while connected to a 4356 * BSS. The updated parameters can be used by driver/firmware for 4357 * subsequent BSS selection (roaming) decisions and to form the 4358 * Authentication/(Re)Association Request frames. This call does not 4359 * request an immediate disassociation or reassociation with the current 4360 * BSS, i.e., this impacts only subsequent (re)associations. The bits in 4361 * changed are defined in &enum cfg80211_connect_params_changed. 4362 * (invoked with the wireless_dev mutex held) 4363 * @disconnect: Disconnect from the BSS/ESS or stop connection attempts if 4364 * connection is in progress. Once done, call cfg80211_disconnected() in 4365 * case connection was already established (invoked with the 4366 * wireless_dev mutex held), otherwise call cfg80211_connect_timeout(). 4367 * 4368 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 4369 * cfg80211_ibss_joined(), also call that function when changing BSSID due 4370 * to a merge. 4371 * (invoked with the wireless_dev mutex held) 4372 * @leave_ibss: Leave the IBSS. 4373 * (invoked with the wireless_dev mutex held) 4374 * 4375 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or 4376 * MESH mode) 4377 * 4378 * @set_wiphy_params: Notify that wiphy parameters have changed; 4379 * @changed bitfield (see &enum wiphy_params_flags) describes which values 4380 * have changed. The actual parameter values are available in 4381 * struct wiphy. If returning an error, no value should be changed. 4382 * 4383 * @set_tx_power: set the transmit power according to the parameters, 4384 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The 4385 * wdev may be %NULL if power was set for the wiphy, and will 4386 * always be %NULL unless the driver supports per-vif TX power 4387 * (as advertised by the nl80211 feature flag.) 4388 * @get_tx_power: store the current TX power into the dbm variable; 4389 * return 0 if successful 4390 * 4391 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 4392 * functions to adjust rfkill hw state 4393 * 4394 * @dump_survey: get site survey information. 4395 * 4396 * @remain_on_channel: Request the driver to remain awake on the specified 4397 * channel for the specified duration to complete an off-channel 4398 * operation (e.g., public action frame exchange). When the driver is 4399 * ready on the requested channel, it must indicate this with an event 4400 * notification by calling cfg80211_ready_on_channel(). 4401 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 4402 * This allows the operation to be terminated prior to timeout based on 4403 * the duration value. 4404 * @mgmt_tx: Transmit a management frame. 4405 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 4406 * frame on another channel 4407 * 4408 * @testmode_cmd: run a test mode command; @wdev may be %NULL 4409 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 4410 * used by the function, but 0 and 1 must not be touched. Additionally, 4411 * return error codes other than -ENOBUFS and -ENOENT will terminate the 4412 * dump and return to userspace with an error, so be careful. If any data 4413 * was passed in from userspace then the data/len arguments will be present 4414 * and point to the data contained in %NL80211_ATTR_TESTDATA. 4415 * 4416 * @set_bitrate_mask: set the bitrate mask configuration 4417 * 4418 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 4419 * devices running firmwares capable of generating the (re) association 4420 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 4421 * @del_pmksa: Delete a cached PMKID. 4422 * @flush_pmksa: Flush all cached PMKIDs. 4423 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 4424 * allows the driver to adjust the dynamic ps timeout value. 4425 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 4426 * After configuration, the driver should (soon) send an event indicating 4427 * the current level is above/below the configured threshold; this may 4428 * need some care when the configuration is changed (without first being 4429 * disabled.) 4430 * @set_cqm_rssi_range_config: Configure two RSSI thresholds in the 4431 * connection quality monitor. An event is to be sent only when the 4432 * signal level is found to be outside the two values. The driver should 4433 * set %NL80211_EXT_FEATURE_CQM_RSSI_LIST if this method is implemented. 4434 * If it is provided then there's no point providing @set_cqm_rssi_config. 4435 * @set_cqm_txe_config: Configure connection quality monitor TX error 4436 * thresholds. 4437 * @sched_scan_start: Tell the driver to start a scheduled scan. 4438 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan with 4439 * given request id. This call must stop the scheduled scan and be ready 4440 * for starting a new one before it returns, i.e. @sched_scan_start may be 4441 * called immediately after that again and should not fail in that case. 4442 * The driver should not call cfg80211_sched_scan_stopped() for a requested 4443 * stop (when this method returns 0). 4444 * 4445 * @update_mgmt_frame_registrations: Notify the driver that management frame 4446 * registrations were updated. The callback is allowed to sleep. 4447 * 4448 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 4449 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 4450 * reject TX/RX mask combinations they cannot support by returning -EINVAL 4451 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 4452 * 4453 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 4454 * 4455 * @tdls_mgmt: Transmit a TDLS management frame. 4456 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). 4457 * 4458 * @probe_client: probe an associated client, must return a cookie that it 4459 * later passes to cfg80211_probe_status(). 4460 * 4461 * @set_noack_map: Set the NoAck Map for the TIDs. 4462 * 4463 * @get_channel: Get the current operating channel for the virtual interface. 4464 * For monitor interfaces, it should return %NULL unless there's a single 4465 * current monitoring channel. 4466 * 4467 * @start_p2p_device: Start the given P2P device. 4468 * @stop_p2p_device: Stop the given P2P device. 4469 * 4470 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode. 4471 * Parameters include ACL policy, an array of MAC address of stations 4472 * and the number of MAC addresses. If there is already a list in driver 4473 * this new list replaces the existing one. Driver has to clear its ACL 4474 * when number of MAC addresses entries is passed as 0. Drivers which 4475 * advertise the support for MAC based ACL have to implement this callback. 4476 * 4477 * @start_radar_detection: Start radar detection in the driver. 4478 * 4479 * @end_cac: End running CAC, probably because a related CAC 4480 * was finished on another phy. 4481 * 4482 * @update_ft_ies: Provide updated Fast BSS Transition information to the 4483 * driver. If the SME is in the driver/firmware, this information can be 4484 * used in building Authentication and Reassociation Request frames. 4485 * 4486 * @crit_proto_start: Indicates a critical protocol needs more link reliability 4487 * for a given duration (milliseconds). The protocol is provided so the 4488 * driver can take the most appropriate actions. 4489 * @crit_proto_stop: Indicates critical protocol no longer needs increased link 4490 * reliability. This operation can not fail. 4491 * @set_coalesce: Set coalesce parameters. 4492 * 4493 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is 4494 * responsible for veryfing if the switch is possible. Since this is 4495 * inherently tricky driver may decide to disconnect an interface later 4496 * with cfg80211_stop_iface(). This doesn't mean driver can accept 4497 * everything. It should do it's best to verify requests and reject them 4498 * as soon as possible. 4499 * 4500 * @set_qos_map: Set QoS mapping information to the driver 4501 * 4502 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the 4503 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width 4504 * changes during the lifetime of the BSS. 4505 * 4506 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device 4507 * with the given parameters; action frame exchange has been handled by 4508 * userspace so this just has to modify the TX path to take the TS into 4509 * account. 4510 * If the admitted time is 0 just validate the parameters to make sure 4511 * the session can be created at all; it is valid to just always return 4512 * success for that but that may result in inefficient behaviour (handshake 4513 * with the peer followed by immediate teardown when the addition is later 4514 * rejected) 4515 * @del_tx_ts: remove an existing TX TS 4516 * 4517 * @join_ocb: join the OCB network with the specified parameters 4518 * (invoked with the wireless_dev mutex held) 4519 * @leave_ocb: leave the current OCB network 4520 * (invoked with the wireless_dev mutex held) 4521 * 4522 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver 4523 * is responsible for continually initiating channel-switching operations 4524 * and returning to the base channel for communication with the AP. 4525 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both 4526 * peers must be on the base channel when the call completes. 4527 * @start_nan: Start the NAN interface. 4528 * @stop_nan: Stop the NAN interface. 4529 * @add_nan_func: Add a NAN function. Returns negative value on failure. 4530 * On success @nan_func ownership is transferred to the driver and 4531 * it may access it outside of the scope of this function. The driver 4532 * should free the @nan_func when no longer needed by calling 4533 * cfg80211_free_nan_func(). 4534 * On success the driver should assign an instance_id in the 4535 * provided @nan_func. 4536 * @del_nan_func: Delete a NAN function. 4537 * @nan_change_conf: changes NAN configuration. The changed parameters must 4538 * be specified in @changes (using &enum cfg80211_nan_conf_changes); 4539 * All other parameters must be ignored. 4540 * 4541 * @set_multicast_to_unicast: configure multicast to unicast conversion for BSS 4542 * 4543 * @get_txq_stats: Get TXQ stats for interface or phy. If wdev is %NULL, this 4544 * function should return phy stats, and interface stats otherwise. 4545 * 4546 * @set_pmk: configure the PMK to be used for offloaded 802.1X 4-Way handshake. 4547 * If not deleted through @del_pmk the PMK remains valid until disconnect 4548 * upon which the driver should clear it. 4549 * (invoked with the wireless_dev mutex held) 4550 * @del_pmk: delete the previously configured PMK for the given authenticator. 4551 * (invoked with the wireless_dev mutex held) 4552 * 4553 * @external_auth: indicates result of offloaded authentication processing from 4554 * user space 4555 * 4556 * @tx_control_port: TX a control port frame (EAPoL). The noencrypt parameter 4557 * tells the driver that the frame should not be encrypted. 4558 * 4559 * @get_ftm_responder_stats: Retrieve FTM responder statistics, if available. 4560 * Statistics should be cumulative, currently no way to reset is provided. 4561 * @start_pmsr: start peer measurement (e.g. FTM) 4562 * @abort_pmsr: abort peer measurement 4563 * 4564 * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME 4565 * but offloading OWE processing to the user space will get the updated 4566 * DH IE through this interface. 4567 * 4568 * @probe_mesh_link: Probe direct Mesh peer's link quality by sending data frame 4569 * and overrule HWMP path selection algorithm. 4570 * @set_tid_config: TID specific configuration, this can be peer or BSS specific 4571 * This callback may sleep. 4572 * @reset_tid_config: Reset TID specific configuration for the peer, for the 4573 * given TIDs. This callback may sleep. 4574 * 4575 * @set_sar_specs: Update the SAR (TX power) settings. 4576 * 4577 * @color_change: Initiate a color change. 4578 * 4579 * @set_fils_aad: Set FILS AAD data to the AP driver so that the driver can use 4580 * those to decrypt (Re)Association Request and encrypt (Re)Association 4581 * Response frame. 4582 * 4583 * @set_radar_background: Configure dedicated offchannel chain available for 4584 * radar/CAC detection on some hw. This chain can't be used to transmit 4585 * or receive frames and it is bounded to a running wdev. 4586 * Background radar/CAC detection allows to avoid the CAC downtime 4587 * switching to a different channel during CAC detection on the selected 4588 * radar channel. 4589 * The caller is expected to set chandef pointer to NULL in order to 4590 * disable background CAC/radar detection. 4591 * @add_link_station: Add a link to a station. 4592 * @mod_link_station: Modify a link of a station. 4593 * @del_link_station: Remove a link of a station. 4594 * 4595 * @set_hw_timestamp: Enable/disable HW timestamping of TM/FTM frames. 4596 * @set_ttlm: set the TID to link mapping. 4597 * @set_epcs: Enable/Disable EPCS for station mode. 4598 * @get_radio_mask: get bitmask of radios in use. 4599 * (invoked with the wiphy mutex held) 4600 * @assoc_ml_reconf: Request a non-AP MLO connection to perform ML 4601 * reconfiguration, i.e., add and/or remove links to/from the 4602 * association using ML reconfiguration action frames. Successfully added 4603 * links will be added to the set of valid links. Successfully removed 4604 * links will be removed from the set of valid links. The driver must 4605 * indicate removed links by calling cfg80211_links_removed() and added 4606 * links by calling cfg80211_mlo_reconf_add_done(). When calling 4607 * cfg80211_mlo_reconf_add_done() the bss pointer must be given for each 4608 * link for which MLO reconfiguration 'add' operation was requested. 4609 */ 4610 struct cfg80211_ops { 4611 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 4612 int (*resume)(struct wiphy *wiphy); 4613 void (*set_wakeup)(struct wiphy *wiphy, bool enabled); 4614 4615 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, 4616 const char *name, 4617 unsigned char name_assign_type, 4618 enum nl80211_iftype type, 4619 struct vif_params *params); 4620 int (*del_virtual_intf)(struct wiphy *wiphy, 4621 struct wireless_dev *wdev); 4622 int (*change_virtual_intf)(struct wiphy *wiphy, 4623 struct net_device *dev, 4624 enum nl80211_iftype type, 4625 struct vif_params *params); 4626 4627 int (*add_intf_link)(struct wiphy *wiphy, 4628 struct wireless_dev *wdev, 4629 unsigned int link_id); 4630 void (*del_intf_link)(struct wiphy *wiphy, 4631 struct wireless_dev *wdev, 4632 unsigned int link_id); 4633 4634 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 4635 int link_id, u8 key_index, bool pairwise, 4636 const u8 *mac_addr, struct key_params *params); 4637 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 4638 int link_id, u8 key_index, bool pairwise, 4639 const u8 *mac_addr, void *cookie, 4640 void (*callback)(void *cookie, struct key_params*)); 4641 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 4642 int link_id, u8 key_index, bool pairwise, 4643 const u8 *mac_addr); 4644 int (*set_default_key)(struct wiphy *wiphy, 4645 struct net_device *netdev, int link_id, 4646 u8 key_index, bool unicast, bool multicast); 4647 int (*set_default_mgmt_key)(struct wiphy *wiphy, 4648 struct net_device *netdev, int link_id, 4649 u8 key_index); 4650 int (*set_default_beacon_key)(struct wiphy *wiphy, 4651 struct net_device *netdev, 4652 int link_id, 4653 u8 key_index); 4654 4655 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, 4656 struct cfg80211_ap_settings *settings); 4657 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, 4658 struct cfg80211_ap_update *info); 4659 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev, 4660 unsigned int link_id); 4661 4662 4663 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 4664 const u8 *mac, 4665 struct station_parameters *params); 4666 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 4667 struct station_del_parameters *params); 4668 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 4669 const u8 *mac, 4670 struct station_parameters *params); 4671 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 4672 const u8 *mac, struct station_info *sinfo); 4673 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 4674 int idx, u8 *mac, struct station_info *sinfo); 4675 4676 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 4677 const u8 *dst, const u8 *next_hop); 4678 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 4679 const u8 *dst); 4680 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 4681 const u8 *dst, const u8 *next_hop); 4682 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 4683 u8 *dst, u8 *next_hop, struct mpath_info *pinfo); 4684 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 4685 int idx, u8 *dst, u8 *next_hop, 4686 struct mpath_info *pinfo); 4687 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev, 4688 u8 *dst, u8 *mpp, struct mpath_info *pinfo); 4689 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev, 4690 int idx, u8 *dst, u8 *mpp, 4691 struct mpath_info *pinfo); 4692 int (*get_mesh_config)(struct wiphy *wiphy, 4693 struct net_device *dev, 4694 struct mesh_config *conf); 4695 int (*update_mesh_config)(struct wiphy *wiphy, 4696 struct net_device *dev, u32 mask, 4697 const struct mesh_config *nconf); 4698 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 4699 const struct mesh_config *conf, 4700 const struct mesh_setup *setup); 4701 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 4702 4703 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev, 4704 struct ocb_setup *setup); 4705 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev); 4706 4707 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 4708 struct bss_parameters *params); 4709 4710 void (*inform_bss)(struct wiphy *wiphy, struct cfg80211_bss *bss, 4711 const struct cfg80211_bss_ies *ies, void *data); 4712 4713 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, 4714 struct ieee80211_txq_params *params); 4715 4716 int (*libertas_set_mesh_channel)(struct wiphy *wiphy, 4717 struct net_device *dev, 4718 struct ieee80211_channel *chan); 4719 4720 int (*set_monitor_channel)(struct wiphy *wiphy, 4721 struct net_device *dev, 4722 struct cfg80211_chan_def *chandef); 4723 4724 int (*scan)(struct wiphy *wiphy, 4725 struct cfg80211_scan_request *request); 4726 void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev); 4727 4728 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 4729 struct cfg80211_auth_request *req); 4730 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 4731 struct cfg80211_assoc_request *req); 4732 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 4733 struct cfg80211_deauth_request *req); 4734 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 4735 struct cfg80211_disassoc_request *req); 4736 4737 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 4738 struct cfg80211_connect_params *sme); 4739 int (*update_connect_params)(struct wiphy *wiphy, 4740 struct net_device *dev, 4741 struct cfg80211_connect_params *sme, 4742 u32 changed); 4743 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 4744 u16 reason_code); 4745 4746 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 4747 struct cfg80211_ibss_params *params); 4748 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 4749 4750 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev, 4751 int rate[NUM_NL80211_BANDS]); 4752 4753 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 4754 4755 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 4756 enum nl80211_tx_power_setting type, int mbm); 4757 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 4758 unsigned int link_id, int *dbm); 4759 4760 void (*rfkill_poll)(struct wiphy *wiphy); 4761 4762 #ifdef CONFIG_NL80211_TESTMODE 4763 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev, 4764 void *data, int len); 4765 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 4766 struct netlink_callback *cb, 4767 void *data, int len); 4768 #endif 4769 4770 int (*set_bitrate_mask)(struct wiphy *wiphy, 4771 struct net_device *dev, 4772 unsigned int link_id, 4773 const u8 *peer, 4774 const struct cfg80211_bitrate_mask *mask); 4775 4776 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 4777 int idx, struct survey_info *info); 4778 4779 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 4780 struct cfg80211_pmksa *pmksa); 4781 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 4782 struct cfg80211_pmksa *pmksa); 4783 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 4784 4785 int (*remain_on_channel)(struct wiphy *wiphy, 4786 struct wireless_dev *wdev, 4787 struct ieee80211_channel *chan, 4788 unsigned int duration, 4789 u64 *cookie); 4790 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 4791 struct wireless_dev *wdev, 4792 u64 cookie); 4793 4794 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, 4795 struct cfg80211_mgmt_tx_params *params, 4796 u64 *cookie); 4797 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 4798 struct wireless_dev *wdev, 4799 u64 cookie); 4800 4801 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 4802 bool enabled, int timeout); 4803 4804 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 4805 struct net_device *dev, 4806 s32 rssi_thold, u32 rssi_hyst); 4807 4808 int (*set_cqm_rssi_range_config)(struct wiphy *wiphy, 4809 struct net_device *dev, 4810 s32 rssi_low, s32 rssi_high); 4811 4812 int (*set_cqm_txe_config)(struct wiphy *wiphy, 4813 struct net_device *dev, 4814 u32 rate, u32 pkts, u32 intvl); 4815 4816 void (*update_mgmt_frame_registrations)(struct wiphy *wiphy, 4817 struct wireless_dev *wdev, 4818 struct mgmt_frame_regs *upd); 4819 4820 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 4821 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 4822 4823 int (*sched_scan_start)(struct wiphy *wiphy, 4824 struct net_device *dev, 4825 struct cfg80211_sched_scan_request *request); 4826 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev, 4827 u64 reqid); 4828 4829 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 4830 struct cfg80211_gtk_rekey_data *data); 4831 4832 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, 4833 const u8 *peer, int link_id, 4834 u8 action_code, u8 dialog_token, u16 status_code, 4835 u32 peer_capability, bool initiator, 4836 const u8 *buf, size_t len); 4837 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, 4838 const u8 *peer, enum nl80211_tdls_operation oper); 4839 4840 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, 4841 const u8 *peer, u64 *cookie); 4842 4843 int (*set_noack_map)(struct wiphy *wiphy, 4844 struct net_device *dev, 4845 u16 noack_map); 4846 4847 int (*get_channel)(struct wiphy *wiphy, 4848 struct wireless_dev *wdev, 4849 unsigned int link_id, 4850 struct cfg80211_chan_def *chandef); 4851 4852 int (*start_p2p_device)(struct wiphy *wiphy, 4853 struct wireless_dev *wdev); 4854 void (*stop_p2p_device)(struct wiphy *wiphy, 4855 struct wireless_dev *wdev); 4856 4857 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev, 4858 const struct cfg80211_acl_data *params); 4859 4860 int (*start_radar_detection)(struct wiphy *wiphy, 4861 struct net_device *dev, 4862 struct cfg80211_chan_def *chandef, 4863 u32 cac_time_ms, int link_id); 4864 void (*end_cac)(struct wiphy *wiphy, 4865 struct net_device *dev, unsigned int link_id); 4866 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev, 4867 struct cfg80211_update_ft_ies_params *ftie); 4868 int (*crit_proto_start)(struct wiphy *wiphy, 4869 struct wireless_dev *wdev, 4870 enum nl80211_crit_proto_id protocol, 4871 u16 duration); 4872 void (*crit_proto_stop)(struct wiphy *wiphy, 4873 struct wireless_dev *wdev); 4874 int (*set_coalesce)(struct wiphy *wiphy, 4875 struct cfg80211_coalesce *coalesce); 4876 4877 int (*channel_switch)(struct wiphy *wiphy, 4878 struct net_device *dev, 4879 struct cfg80211_csa_settings *params); 4880 4881 int (*set_qos_map)(struct wiphy *wiphy, 4882 struct net_device *dev, 4883 struct cfg80211_qos_map *qos_map); 4884 4885 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev, 4886 unsigned int link_id, 4887 struct cfg80211_chan_def *chandef); 4888 4889 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev, 4890 u8 tsid, const u8 *peer, u8 user_prio, 4891 u16 admitted_time); 4892 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev, 4893 u8 tsid, const u8 *peer); 4894 4895 int (*tdls_channel_switch)(struct wiphy *wiphy, 4896 struct net_device *dev, 4897 const u8 *addr, u8 oper_class, 4898 struct cfg80211_chan_def *chandef); 4899 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy, 4900 struct net_device *dev, 4901 const u8 *addr); 4902 int (*start_nan)(struct wiphy *wiphy, struct wireless_dev *wdev, 4903 struct cfg80211_nan_conf *conf); 4904 void (*stop_nan)(struct wiphy *wiphy, struct wireless_dev *wdev); 4905 int (*add_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev, 4906 struct cfg80211_nan_func *nan_func); 4907 void (*del_nan_func)(struct wiphy *wiphy, struct wireless_dev *wdev, 4908 u64 cookie); 4909 int (*nan_change_conf)(struct wiphy *wiphy, 4910 struct wireless_dev *wdev, 4911 struct cfg80211_nan_conf *conf, 4912 u32 changes); 4913 4914 int (*set_multicast_to_unicast)(struct wiphy *wiphy, 4915 struct net_device *dev, 4916 const bool enabled); 4917 4918 int (*get_txq_stats)(struct wiphy *wiphy, 4919 struct wireless_dev *wdev, 4920 struct cfg80211_txq_stats *txqstats); 4921 4922 int (*set_pmk)(struct wiphy *wiphy, struct net_device *dev, 4923 const struct cfg80211_pmk_conf *conf); 4924 int (*del_pmk)(struct wiphy *wiphy, struct net_device *dev, 4925 const u8 *aa); 4926 int (*external_auth)(struct wiphy *wiphy, struct net_device *dev, 4927 struct cfg80211_external_auth_params *params); 4928 4929 int (*tx_control_port)(struct wiphy *wiphy, 4930 struct net_device *dev, 4931 const u8 *buf, size_t len, 4932 const u8 *dest, const __be16 proto, 4933 const bool noencrypt, int link_id, 4934 u64 *cookie); 4935 4936 int (*get_ftm_responder_stats)(struct wiphy *wiphy, 4937 struct net_device *dev, 4938 struct cfg80211_ftm_responder_stats *ftm_stats); 4939 4940 int (*start_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev, 4941 struct cfg80211_pmsr_request *request); 4942 void (*abort_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev, 4943 struct cfg80211_pmsr_request *request); 4944 int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev, 4945 struct cfg80211_update_owe_info *owe_info); 4946 int (*probe_mesh_link)(struct wiphy *wiphy, struct net_device *dev, 4947 const u8 *buf, size_t len); 4948 int (*set_tid_config)(struct wiphy *wiphy, struct net_device *dev, 4949 struct cfg80211_tid_config *tid_conf); 4950 int (*reset_tid_config)(struct wiphy *wiphy, struct net_device *dev, 4951 const u8 *peer, u8 tids); 4952 int (*set_sar_specs)(struct wiphy *wiphy, 4953 struct cfg80211_sar_specs *sar); 4954 int (*color_change)(struct wiphy *wiphy, 4955 struct net_device *dev, 4956 struct cfg80211_color_change_settings *params); 4957 int (*set_fils_aad)(struct wiphy *wiphy, struct net_device *dev, 4958 struct cfg80211_fils_aad *fils_aad); 4959 int (*set_radar_background)(struct wiphy *wiphy, 4960 struct cfg80211_chan_def *chandef); 4961 int (*add_link_station)(struct wiphy *wiphy, struct net_device *dev, 4962 struct link_station_parameters *params); 4963 int (*mod_link_station)(struct wiphy *wiphy, struct net_device *dev, 4964 struct link_station_parameters *params); 4965 int (*del_link_station)(struct wiphy *wiphy, struct net_device *dev, 4966 struct link_station_del_parameters *params); 4967 int (*set_hw_timestamp)(struct wiphy *wiphy, struct net_device *dev, 4968 struct cfg80211_set_hw_timestamp *hwts); 4969 int (*set_ttlm)(struct wiphy *wiphy, struct net_device *dev, 4970 struct cfg80211_ttlm_params *params); 4971 u32 (*get_radio_mask)(struct wiphy *wiphy, struct net_device *dev); 4972 int (*assoc_ml_reconf)(struct wiphy *wiphy, struct net_device *dev, 4973 struct cfg80211_assoc_link *add_links, 4974 u16 rem_links); 4975 int (*set_epcs)(struct wiphy *wiphy, struct net_device *dev, 4976 bool val); 4977 }; 4978 4979 /* 4980 * wireless hardware and networking interfaces structures 4981 * and registration/helper functions 4982 */ 4983 4984 /** 4985 * enum wiphy_flags - wiphy capability flags 4986 * 4987 * @WIPHY_FLAG_SPLIT_SCAN_6GHZ: if set to true, the scan request will be split 4988 * into two, first for legacy bands and second for 6 GHz. 4989 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 4990 * wiphy at all 4991 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 4992 * by default -- this flag will be set depending on the kernel's default 4993 * on wiphy_new(), but can be changed by the driver if it has a good 4994 * reason to override the default 4995 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 4996 * on a VLAN interface). This flag also serves an extra purpose of 4997 * supporting 4ADDR AP mode on devices which do not support AP/VLAN iftype. 4998 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 4999 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 5000 * control port protocol ethertype. The device also honours the 5001 * control_port_no_encrypt flag. 5002 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 5003 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 5004 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 5005 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the 5006 * firmware. 5007 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. 5008 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. 5009 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) 5010 * link setup/discovery operations internally. Setup, discovery and 5011 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT 5012 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be 5013 * used for asking the driver/firmware to perform a TDLS operation. 5014 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME 5015 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes 5016 * when there are virtual interfaces in AP mode by calling 5017 * cfg80211_report_obss_beacon(). 5018 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device 5019 * responds to probe-requests in hardware. 5020 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. 5021 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. 5022 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels. 5023 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in 5024 * beaconing mode (AP, IBSS, Mesh, ...). 5025 * @WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK: The device supports bigger kek and kck keys 5026 * @WIPHY_FLAG_SUPPORTS_MLO: This is a temporary flag gating the MLO APIs, 5027 * in order to not have them reachable in normal drivers, until we have 5028 * complete feature/interface combinations/etc. advertisement. No driver 5029 * should set this flag for now. 5030 * @WIPHY_FLAG_SUPPORTS_EXT_KCK_32: The device supports 32-byte KCK keys. 5031 * @WIPHY_FLAG_NOTIFY_REGDOM_BY_DRIVER: The device could handle reg notify for 5032 * NL80211_REGDOM_SET_BY_DRIVER. 5033 * @WIPHY_FLAG_CHANNEL_CHANGE_ON_BEACON: reg_call_notifier() is called if driver 5034 * set this flag to update channels on beacon hints. 5035 * @WIPHY_FLAG_SUPPORTS_NSTR_NONPRIMARY: support connection to non-primary link 5036 * of an NSTR mobile AP MLD. 5037 * @WIPHY_FLAG_DISABLE_WEXT: disable wireless extensions for this device 5038 */ 5039 enum wiphy_flags { 5040 WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK = BIT(0), 5041 WIPHY_FLAG_SUPPORTS_MLO = BIT(1), 5042 WIPHY_FLAG_SPLIT_SCAN_6GHZ = BIT(2), 5043 WIPHY_FLAG_NETNS_OK = BIT(3), 5044 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 5045 WIPHY_FLAG_4ADDR_AP = BIT(5), 5046 WIPHY_FLAG_4ADDR_STATION = BIT(6), 5047 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 5048 WIPHY_FLAG_IBSS_RSN = BIT(8), 5049 WIPHY_FLAG_DISABLE_WEXT = BIT(9), 5050 WIPHY_FLAG_MESH_AUTH = BIT(10), 5051 WIPHY_FLAG_SUPPORTS_EXT_KCK_32 = BIT(11), 5052 WIPHY_FLAG_SUPPORTS_NSTR_NONPRIMARY = BIT(12), 5053 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), 5054 WIPHY_FLAG_AP_UAPSD = BIT(14), 5055 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), 5056 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), 5057 WIPHY_FLAG_HAVE_AP_SME = BIT(17), 5058 WIPHY_FLAG_REPORTS_OBSS = BIT(18), 5059 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), 5060 WIPHY_FLAG_OFFCHAN_TX = BIT(20), 5061 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), 5062 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22), 5063 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23), 5064 WIPHY_FLAG_NOTIFY_REGDOM_BY_DRIVER = BIT(24), 5065 WIPHY_FLAG_CHANNEL_CHANGE_ON_BEACON = BIT(25), 5066 }; 5067 5068 /** 5069 * struct ieee80211_iface_limit - limit on certain interface types 5070 * @max: maximum number of interfaces of these types 5071 * @types: interface types (bits) 5072 */ 5073 struct ieee80211_iface_limit { 5074 u16 max; 5075 u16 types; 5076 }; 5077 5078 /** 5079 * struct ieee80211_iface_combination - possible interface combination 5080 * 5081 * With this structure the driver can describe which interface 5082 * combinations it supports concurrently. When set in a struct wiphy_radio, 5083 * the combinations refer to combinations of interfaces currently active on 5084 * that radio. 5085 * 5086 * Examples: 5087 * 5088 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 5089 * 5090 * .. code-block:: c 5091 * 5092 * struct ieee80211_iface_limit limits1[] = { 5093 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 5094 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP), }, 5095 * }; 5096 * struct ieee80211_iface_combination combination1 = { 5097 * .limits = limits1, 5098 * .n_limits = ARRAY_SIZE(limits1), 5099 * .max_interfaces = 2, 5100 * .beacon_int_infra_match = true, 5101 * }; 5102 * 5103 * 5104 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 5105 * 5106 * .. code-block:: c 5107 * 5108 * struct ieee80211_iface_limit limits2[] = { 5109 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 5110 * BIT(NL80211_IFTYPE_P2P_GO), }, 5111 * }; 5112 * struct ieee80211_iface_combination combination2 = { 5113 * .limits = limits2, 5114 * .n_limits = ARRAY_SIZE(limits2), 5115 * .max_interfaces = 8, 5116 * .num_different_channels = 1, 5117 * }; 5118 * 5119 * 5120 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 5121 * 5122 * This allows for an infrastructure connection and three P2P connections. 5123 * 5124 * .. code-block:: c 5125 * 5126 * struct ieee80211_iface_limit limits3[] = { 5127 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 5128 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 5129 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 5130 * }; 5131 * struct ieee80211_iface_combination combination3 = { 5132 * .limits = limits3, 5133 * .n_limits = ARRAY_SIZE(limits3), 5134 * .max_interfaces = 4, 5135 * .num_different_channels = 2, 5136 * }; 5137 * 5138 */ 5139 struct ieee80211_iface_combination { 5140 /** 5141 * @limits: 5142 * limits for the given interface types 5143 */ 5144 const struct ieee80211_iface_limit *limits; 5145 5146 /** 5147 * @num_different_channels: 5148 * can use up to this many different channels 5149 */ 5150 u32 num_different_channels; 5151 5152 /** 5153 * @max_interfaces: 5154 * maximum number of interfaces in total allowed in this group 5155 */ 5156 u16 max_interfaces; 5157 5158 /** 5159 * @n_limits: 5160 * number of limitations 5161 */ 5162 u8 n_limits; 5163 5164 /** 5165 * @beacon_int_infra_match: 5166 * In this combination, the beacon intervals between infrastructure 5167 * and AP types must match. This is required only in special cases. 5168 */ 5169 bool beacon_int_infra_match; 5170 5171 /** 5172 * @radar_detect_widths: 5173 * bitmap of channel widths supported for radar detection 5174 */ 5175 u8 radar_detect_widths; 5176 5177 /** 5178 * @radar_detect_regions: 5179 * bitmap of regions supported for radar detection 5180 */ 5181 u8 radar_detect_regions; 5182 5183 /** 5184 * @beacon_int_min_gcd: 5185 * This interface combination supports different beacon intervals. 5186 * 5187 * = 0 5188 * all beacon intervals for different interface must be same. 5189 * > 0 5190 * any beacon interval for the interface part of this combination AND 5191 * GCD of all beacon intervals from beaconing interfaces of this 5192 * combination must be greater or equal to this value. 5193 */ 5194 u32 beacon_int_min_gcd; 5195 }; 5196 5197 struct ieee80211_txrx_stypes { 5198 u16 tx, rx; 5199 }; 5200 5201 /** 5202 * enum wiphy_wowlan_support_flags - WoWLAN support flags 5203 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 5204 * trigger that keeps the device operating as-is and 5205 * wakes up the host on any activity, for example a 5206 * received packet that passed filtering; note that the 5207 * packet should be preserved in that case 5208 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 5209 * (see nl80211.h) 5210 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 5211 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 5212 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 5213 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 5214 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 5215 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 5216 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection 5217 */ 5218 enum wiphy_wowlan_support_flags { 5219 WIPHY_WOWLAN_ANY = BIT(0), 5220 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 5221 WIPHY_WOWLAN_DISCONNECT = BIT(2), 5222 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 5223 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 5224 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 5225 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 5226 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 5227 WIPHY_WOWLAN_NET_DETECT = BIT(8), 5228 }; 5229 5230 struct wiphy_wowlan_tcp_support { 5231 const struct nl80211_wowlan_tcp_data_token_feature *tok; 5232 u32 data_payload_max; 5233 u32 data_interval_max; 5234 u32 wake_payload_max; 5235 bool seq; 5236 }; 5237 5238 /** 5239 * struct wiphy_wowlan_support - WoWLAN support data 5240 * @flags: see &enum wiphy_wowlan_support_flags 5241 * @n_patterns: number of supported wakeup patterns 5242 * (see nl80211.h for the pattern definition) 5243 * @pattern_max_len: maximum length of each pattern 5244 * @pattern_min_len: minimum length of each pattern 5245 * @max_pkt_offset: maximum Rx packet offset 5246 * @max_nd_match_sets: maximum number of matchsets for net-detect, 5247 * similar, but not necessarily identical, to max_match_sets for 5248 * scheduled scans. 5249 * See &struct cfg80211_sched_scan_request.@match_sets for more 5250 * details. 5251 * @tcp: TCP wakeup support information 5252 */ 5253 struct wiphy_wowlan_support { 5254 u32 flags; 5255 int n_patterns; 5256 int pattern_max_len; 5257 int pattern_min_len; 5258 int max_pkt_offset; 5259 int max_nd_match_sets; 5260 const struct wiphy_wowlan_tcp_support *tcp; 5261 }; 5262 5263 /** 5264 * struct wiphy_coalesce_support - coalesce support data 5265 * @n_rules: maximum number of coalesce rules 5266 * @max_delay: maximum supported coalescing delay in msecs 5267 * @n_patterns: number of supported patterns in a rule 5268 * (see nl80211.h for the pattern definition) 5269 * @pattern_max_len: maximum length of each pattern 5270 * @pattern_min_len: minimum length of each pattern 5271 * @max_pkt_offset: maximum Rx packet offset 5272 */ 5273 struct wiphy_coalesce_support { 5274 int n_rules; 5275 int max_delay; 5276 int n_patterns; 5277 int pattern_max_len; 5278 int pattern_min_len; 5279 int max_pkt_offset; 5280 }; 5281 5282 /** 5283 * enum wiphy_vendor_command_flags - validation flags for vendor commands 5284 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev 5285 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev 5286 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running 5287 * (must be combined with %_WDEV or %_NETDEV) 5288 */ 5289 enum wiphy_vendor_command_flags { 5290 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0), 5291 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1), 5292 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2), 5293 }; 5294 5295 /** 5296 * enum wiphy_opmode_flag - Station's ht/vht operation mode information flags 5297 * 5298 * @STA_OPMODE_MAX_BW_CHANGED: Max Bandwidth changed 5299 * @STA_OPMODE_SMPS_MODE_CHANGED: SMPS mode changed 5300 * @STA_OPMODE_N_SS_CHANGED: max N_SS (number of spatial streams) changed 5301 * 5302 */ 5303 enum wiphy_opmode_flag { 5304 STA_OPMODE_MAX_BW_CHANGED = BIT(0), 5305 STA_OPMODE_SMPS_MODE_CHANGED = BIT(1), 5306 STA_OPMODE_N_SS_CHANGED = BIT(2), 5307 }; 5308 5309 /** 5310 * struct sta_opmode_info - Station's ht/vht operation mode information 5311 * @changed: contains value from &enum wiphy_opmode_flag 5312 * @smps_mode: New SMPS mode value from &enum nl80211_smps_mode of a station 5313 * @bw: new max bandwidth value from &enum nl80211_chan_width of a station 5314 * @rx_nss: new rx_nss value of a station 5315 */ 5316 5317 struct sta_opmode_info { 5318 u32 changed; 5319 enum nl80211_smps_mode smps_mode; 5320 enum nl80211_chan_width bw; 5321 u8 rx_nss; 5322 }; 5323 5324 #define VENDOR_CMD_RAW_DATA ((const struct nla_policy *)(long)(-ENODATA)) 5325 5326 /** 5327 * struct wiphy_vendor_command - vendor command definition 5328 * @info: vendor command identifying information, as used in nl80211 5329 * @flags: flags, see &enum wiphy_vendor_command_flags 5330 * @doit: callback for the operation, note that wdev is %NULL if the 5331 * flags didn't ask for a wdev and non-%NULL otherwise; the data 5332 * pointer may be %NULL if userspace provided no data at all 5333 * @dumpit: dump callback, for transferring bigger/multiple items. The 5334 * @storage points to cb->args[5], ie. is preserved over the multiple 5335 * dumpit calls. 5336 * @policy: policy pointer for attributes within %NL80211_ATTR_VENDOR_DATA. 5337 * Set this to %VENDOR_CMD_RAW_DATA if no policy can be given and the 5338 * attribute is just raw data (e.g. a firmware command). 5339 * @maxattr: highest attribute number in policy 5340 * It's recommended to not have the same sub command with both @doit and 5341 * @dumpit, so that userspace can assume certain ones are get and others 5342 * are used with dump requests. 5343 */ 5344 struct wiphy_vendor_command { 5345 struct nl80211_vendor_cmd_info info; 5346 u32 flags; 5347 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev, 5348 const void *data, int data_len); 5349 int (*dumpit)(struct wiphy *wiphy, struct wireless_dev *wdev, 5350 struct sk_buff *skb, const void *data, int data_len, 5351 unsigned long *storage); 5352 const struct nla_policy *policy; 5353 unsigned int maxattr; 5354 }; 5355 5356 /** 5357 * struct wiphy_iftype_ext_capab - extended capabilities per interface type 5358 * @iftype: interface type 5359 * @extended_capabilities: extended capabilities supported by the driver, 5360 * additional capabilities might be supported by userspace; these are the 5361 * 802.11 extended capabilities ("Extended Capabilities element") and are 5362 * in the same format as in the information element. See IEEE Std 5363 * 802.11-2012 8.4.2.29 for the defined fields. 5364 * @extended_capabilities_mask: mask of the valid values 5365 * @extended_capabilities_len: length of the extended capabilities 5366 * @eml_capabilities: EML capabilities (for MLO) 5367 * @mld_capa_and_ops: MLD capabilities and operations (for MLO) 5368 */ 5369 struct wiphy_iftype_ext_capab { 5370 enum nl80211_iftype iftype; 5371 const u8 *extended_capabilities; 5372 const u8 *extended_capabilities_mask; 5373 u8 extended_capabilities_len; 5374 u16 eml_capabilities; 5375 u16 mld_capa_and_ops; 5376 }; 5377 5378 /** 5379 * cfg80211_get_iftype_ext_capa - lookup interface type extended capability 5380 * @wiphy: the wiphy to look up from 5381 * @type: the interface type to look up 5382 * 5383 * Return: The extended capability for the given interface @type, may be %NULL 5384 */ 5385 const struct wiphy_iftype_ext_capab * 5386 cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type); 5387 5388 /** 5389 * struct cfg80211_pmsr_capabilities - cfg80211 peer measurement capabilities 5390 * @max_peers: maximum number of peers in a single measurement 5391 * @report_ap_tsf: can report assoc AP's TSF for radio resource measurement 5392 * @randomize_mac_addr: can randomize MAC address for measurement 5393 * @ftm: FTM measurement data 5394 * @ftm.supported: FTM measurement is supported 5395 * @ftm.asap: ASAP-mode is supported 5396 * @ftm.non_asap: non-ASAP-mode is supported 5397 * @ftm.request_lci: can request LCI data 5398 * @ftm.request_civicloc: can request civic location data 5399 * @ftm.preambles: bitmap of preambles supported (&enum nl80211_preamble) 5400 * @ftm.bandwidths: bitmap of bandwidths supported (&enum nl80211_chan_width) 5401 * @ftm.max_bursts_exponent: maximum burst exponent supported 5402 * (set to -1 if not limited; note that setting this will necessarily 5403 * forbid using the value 15 to let the responder pick) 5404 * @ftm.max_ftms_per_burst: maximum FTMs per burst supported (set to 0 if 5405 * not limited) 5406 * @ftm.trigger_based: trigger based ranging measurement is supported 5407 * @ftm.non_trigger_based: non trigger based ranging measurement is supported 5408 */ 5409 struct cfg80211_pmsr_capabilities { 5410 unsigned int max_peers; 5411 u8 report_ap_tsf:1, 5412 randomize_mac_addr:1; 5413 5414 struct { 5415 u32 preambles; 5416 u32 bandwidths; 5417 s8 max_bursts_exponent; 5418 u8 max_ftms_per_burst; 5419 u8 supported:1, 5420 asap:1, 5421 non_asap:1, 5422 request_lci:1, 5423 request_civicloc:1, 5424 trigger_based:1, 5425 non_trigger_based:1; 5426 } ftm; 5427 }; 5428 5429 /** 5430 * struct wiphy_iftype_akm_suites - This structure encapsulates supported akm 5431 * suites for interface types defined in @iftypes_mask. Each type in the 5432 * @iftypes_mask must be unique across all instances of iftype_akm_suites. 5433 * 5434 * @iftypes_mask: bitmask of interfaces types 5435 * @akm_suites: points to an array of supported akm suites 5436 * @n_akm_suites: number of supported AKM suites 5437 */ 5438 struct wiphy_iftype_akm_suites { 5439 u16 iftypes_mask; 5440 const u32 *akm_suites; 5441 int n_akm_suites; 5442 }; 5443 5444 /** 5445 * struct wiphy_radio_freq_range - wiphy frequency range 5446 * @start_freq: start range edge frequency (kHz) 5447 * @end_freq: end range edge frequency (kHz) 5448 */ 5449 struct wiphy_radio_freq_range { 5450 u32 start_freq; 5451 u32 end_freq; 5452 }; 5453 5454 5455 /** 5456 * struct wiphy_radio - physical radio of a wiphy 5457 * This structure describes a physical radio belonging to a wiphy. 5458 * It is used to describe concurrent-channel capabilities. Only one channel 5459 * can be active on the radio described by struct wiphy_radio. 5460 * 5461 * @freq_range: frequency range that the radio can operate on. 5462 * @n_freq_range: number of elements in @freq_range 5463 * 5464 * @iface_combinations: Valid interface combinations array, should not 5465 * list single interface types. 5466 * @n_iface_combinations: number of entries in @iface_combinations array. 5467 * 5468 * @antenna_mask: bitmask of antennas connected to this radio. 5469 */ 5470 struct wiphy_radio { 5471 const struct wiphy_radio_freq_range *freq_range; 5472 int n_freq_range; 5473 5474 const struct ieee80211_iface_combination *iface_combinations; 5475 int n_iface_combinations; 5476 5477 u32 antenna_mask; 5478 }; 5479 5480 #define CFG80211_HW_TIMESTAMP_ALL_PEERS 0xffff 5481 5482 /** 5483 * struct wiphy - wireless hardware description 5484 * @mtx: mutex for the data (structures) of this device 5485 * @reg_notifier: the driver's regulatory notification callback, 5486 * note that if your driver uses wiphy_apply_custom_regulatory() 5487 * the reg_notifier's request can be passed as NULL 5488 * @regd: the driver's regulatory domain, if one was requested via 5489 * the regulatory_hint() API. This can be used by the driver 5490 * on the reg_notifier() if it chooses to ignore future 5491 * regulatory domain changes caused by other drivers. 5492 * @signal_type: signal type reported in &struct cfg80211_bss. 5493 * @cipher_suites: supported cipher suites 5494 * @n_cipher_suites: number of supported cipher suites 5495 * @akm_suites: supported AKM suites. These are the default AKMs supported if 5496 * the supported AKMs not advertized for a specific interface type in 5497 * iftype_akm_suites. 5498 * @n_akm_suites: number of supported AKM suites 5499 * @iftype_akm_suites: array of supported akm suites info per interface type. 5500 * Note that the bits in @iftypes_mask inside this structure cannot 5501 * overlap (i.e. only one occurrence of each type is allowed across all 5502 * instances of iftype_akm_suites). 5503 * @num_iftype_akm_suites: number of interface types for which supported akm 5504 * suites are specified separately. 5505 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 5506 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 5507 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 5508 * -1 = fragmentation disabled, only odd values >= 256 used 5509 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 5510 * @_net: the network namespace this wiphy currently lives in 5511 * @perm_addr: permanent MAC address of this device 5512 * @addr_mask: If the device supports multiple MAC addresses by masking, 5513 * set this to a mask with variable bits set to 1, e.g. if the last 5514 * four bits are variable then set it to 00-00-00-00-00-0f. The actual 5515 * variable bits shall be determined by the interfaces added, with 5516 * interfaces not matching the mask being rejected to be brought up. 5517 * @n_addresses: number of addresses in @addresses. 5518 * @addresses: If the device has more than one address, set this pointer 5519 * to a list of addresses (6 bytes each). The first one will be used 5520 * by default for perm_addr. In this case, the mask should be set to 5521 * all-zeroes. In this case it is assumed that the device can handle 5522 * the same number of arbitrary MAC addresses. 5523 * @registered: protects ->resume and ->suspend sysfs callbacks against 5524 * unregister hardware 5525 * @debugfsdir: debugfs directory used for this wiphy (ieee80211/<wiphyname>). 5526 * It will be renamed automatically on wiphy renames 5527 * @dev: (virtual) struct device for this wiphy. The item in 5528 * /sys/class/ieee80211/ points to this. You need use set_wiphy_dev() 5529 * (see below). 5530 * @wext: wireless extension handlers 5531 * @priv: driver private data (sized according to wiphy_new() parameter) 5532 * @interface_modes: bitmask of interfaces types valid for this wiphy, 5533 * must be set by driver 5534 * @iface_combinations: Valid interface combinations array, should not 5535 * list single interface types. 5536 * @n_iface_combinations: number of entries in @iface_combinations array. 5537 * @software_iftypes: bitmask of software interface types, these are not 5538 * subject to any restrictions since they are purely managed in SW. 5539 * @flags: wiphy flags, see &enum wiphy_flags 5540 * @regulatory_flags: wiphy regulatory flags, see 5541 * &enum ieee80211_regulatory_flags 5542 * @features: features advertised to nl80211, see &enum nl80211_feature_flags. 5543 * @ext_features: extended features advertised to nl80211, see 5544 * &enum nl80211_ext_feature_index. 5545 * @bss_priv_size: each BSS struct has private data allocated with it, 5546 * this variable determines its size 5547 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 5548 * any given scan 5549 * @max_sched_scan_reqs: maximum number of scheduled scan requests that 5550 * the device can run concurrently. 5551 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 5552 * for in any given scheduled scan 5553 * @max_match_sets: maximum number of match sets the device can handle 5554 * when performing a scheduled scan, 0 if filtering is not 5555 * supported. 5556 * @max_scan_ie_len: maximum length of user-controlled IEs device can 5557 * add to probe request frames transmitted during a scan, must not 5558 * include fixed IEs like supported rates 5559 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 5560 * scans 5561 * @max_sched_scan_plans: maximum number of scan plans (scan interval and number 5562 * of iterations) for scheduled scan supported by the device. 5563 * @max_sched_scan_plan_interval: maximum interval (in seconds) for a 5564 * single scan plan supported by the device. 5565 * @max_sched_scan_plan_iterations: maximum number of iterations for a single 5566 * scan plan supported by the device. 5567 * @coverage_class: current coverage class 5568 * @fw_version: firmware version for ethtool reporting 5569 * @hw_version: hardware version for ethtool reporting 5570 * @max_num_pmkids: maximum number of PMKIDs supported by device 5571 * @privid: a pointer that drivers can use to identify if an arbitrary 5572 * wiphy is theirs, e.g. in global notifiers 5573 * @bands: information about bands/channels supported by this device 5574 * 5575 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 5576 * transmitted through nl80211, points to an array indexed by interface 5577 * type 5578 * 5579 * @available_antennas_tx: bitmap of antennas which are available to be 5580 * configured as TX antennas. Antenna configuration commands will be 5581 * rejected unless this or @available_antennas_rx is set. 5582 * 5583 * @available_antennas_rx: bitmap of antennas which are available to be 5584 * configured as RX antennas. Antenna configuration commands will be 5585 * rejected unless this or @available_antennas_tx is set. 5586 * 5587 * @probe_resp_offload: 5588 * Bitmap of supported protocols for probe response offloading. 5589 * See &enum nl80211_probe_resp_offload_support_attr. Only valid 5590 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 5591 * 5592 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 5593 * may request, if implemented. 5594 * 5595 * @wowlan: WoWLAN support information 5596 * @wowlan_config: current WoWLAN configuration; this should usually not be 5597 * used since access to it is necessarily racy, use the parameter passed 5598 * to the suspend() operation instead. 5599 * 5600 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. 5601 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. 5602 * If null, then none can be over-ridden. 5603 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden. 5604 * If null, then none can be over-ridden. 5605 * 5606 * @wdev_list: the list of associated (virtual) interfaces; this list must 5607 * not be modified by the driver, but can be read with RTNL/RCU protection. 5608 * 5609 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device 5610 * supports for ACL. 5611 * 5612 * @extended_capabilities: extended capabilities supported by the driver, 5613 * additional capabilities might be supported by userspace; these are 5614 * the 802.11 extended capabilities ("Extended Capabilities element") 5615 * and are in the same format as in the information element. See 5616 * 802.11-2012 8.4.2.29 for the defined fields. These are the default 5617 * extended capabilities to be used if the capabilities are not specified 5618 * for a specific interface type in iftype_ext_capab. 5619 * @extended_capabilities_mask: mask of the valid values 5620 * @extended_capabilities_len: length of the extended capabilities 5621 * @iftype_ext_capab: array of extended capabilities per interface type 5622 * @num_iftype_ext_capab: number of interface types for which extended 5623 * capabilities are specified separately. 5624 * @coalesce: packet coalescing support information 5625 * 5626 * @vendor_commands: array of vendor commands supported by the hardware 5627 * @n_vendor_commands: number of vendor commands 5628 * @vendor_events: array of vendor events supported by the hardware 5629 * @n_vendor_events: number of vendor events 5630 * 5631 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode 5632 * (including P2P GO) or 0 to indicate no such limit is advertised. The 5633 * driver is allowed to advertise a theoretical limit that it can reach in 5634 * some cases, but may not always reach. 5635 * 5636 * @max_num_csa_counters: Number of supported csa_counters in beacons 5637 * and probe responses. This value should be set if the driver 5638 * wishes to limit the number of csa counters. Default (0) means 5639 * infinite. 5640 * @bss_select_support: bitmask indicating the BSS selection criteria supported 5641 * by the driver in the .connect() callback. The bit position maps to the 5642 * attribute indices defined in &enum nl80211_bss_select_attr. 5643 * 5644 * @nan_supported_bands: bands supported by the device in NAN mode, a 5645 * bitmap of &enum nl80211_band values. For instance, for 5646 * NL80211_BAND_2GHZ, bit 0 would be set 5647 * (i.e. BIT(NL80211_BAND_2GHZ)). 5648 * 5649 * @txq_limit: configuration of internal TX queue frame limit 5650 * @txq_memory_limit: configuration internal TX queue memory limit 5651 * @txq_quantum: configuration of internal TX queue scheduler quantum 5652 * 5653 * @tx_queue_len: allow setting transmit queue len for drivers not using 5654 * wake_tx_queue 5655 * 5656 * @support_mbssid: can HW support association with nontransmitted AP 5657 * @support_only_he_mbssid: don't parse MBSSID elements if it is not 5658 * HE AP, in order to avoid compatibility issues. 5659 * @support_mbssid must be set for this to have any effect. 5660 * 5661 * @pmsr_capa: peer measurement capabilities 5662 * 5663 * @tid_config_support: describes the per-TID config support that the 5664 * device has 5665 * @tid_config_support.vif: bitmap of attributes (configurations) 5666 * supported by the driver for each vif 5667 * @tid_config_support.peer: bitmap of attributes (configurations) 5668 * supported by the driver for each peer 5669 * @tid_config_support.max_retry: maximum supported retry count for 5670 * long/short retry configuration 5671 * 5672 * @max_data_retry_count: maximum supported per TID retry count for 5673 * configuration through the %NL80211_TID_CONFIG_ATTR_RETRY_SHORT and 5674 * %NL80211_TID_CONFIG_ATTR_RETRY_LONG attributes 5675 * @sar_capa: SAR control capabilities 5676 * @rfkill: a pointer to the rfkill structure 5677 * 5678 * @mbssid_max_interfaces: maximum number of interfaces supported by the driver 5679 * in a multiple BSSID set. This field must be set to a non-zero value 5680 * by the driver to advertise MBSSID support. 5681 * @ema_max_profile_periodicity: maximum profile periodicity supported by 5682 * the driver. Setting this field to a non-zero value indicates that the 5683 * driver supports enhanced multi-BSSID advertisements (EMA AP). 5684 * @max_num_akm_suites: maximum number of AKM suites allowed for 5685 * configuration through %NL80211_CMD_CONNECT, %NL80211_CMD_ASSOCIATE and 5686 * %NL80211_CMD_START_AP. Set to NL80211_MAX_NR_AKM_SUITES if not set by 5687 * driver. If set by driver minimum allowed value is 5688 * NL80211_MAX_NR_AKM_SUITES in order to avoid compatibility issues with 5689 * legacy userspace and maximum allowed value is 5690 * CFG80211_MAX_NUM_AKM_SUITES. 5691 * 5692 * @hw_timestamp_max_peers: maximum number of peers that the driver supports 5693 * enabling HW timestamping for concurrently. Setting this field to a 5694 * non-zero value indicates that the driver supports HW timestamping. 5695 * A value of %CFG80211_HW_TIMESTAMP_ALL_PEERS indicates the driver 5696 * supports enabling HW timestamping for all peers (i.e. no need to 5697 * specify a mac address). 5698 * 5699 * @radio: radios belonging to this wiphy 5700 * @n_radio: number of radios 5701 */ 5702 struct wiphy { 5703 struct mutex mtx; 5704 5705 /* assign these fields before you register the wiphy */ 5706 5707 u8 perm_addr[ETH_ALEN]; 5708 u8 addr_mask[ETH_ALEN]; 5709 5710 struct mac_address *addresses; 5711 5712 const struct ieee80211_txrx_stypes *mgmt_stypes; 5713 5714 const struct ieee80211_iface_combination *iface_combinations; 5715 int n_iface_combinations; 5716 u16 software_iftypes; 5717 5718 u16 n_addresses; 5719 5720 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 5721 u16 interface_modes; 5722 5723 u16 max_acl_mac_addrs; 5724 5725 u32 flags, regulatory_flags, features; 5726 u8 ext_features[DIV_ROUND_UP(NUM_NL80211_EXT_FEATURES, 8)]; 5727 5728 u32 ap_sme_capa; 5729 5730 enum cfg80211_signal_type signal_type; 5731 5732 int bss_priv_size; 5733 u8 max_scan_ssids; 5734 u8 max_sched_scan_reqs; 5735 u8 max_sched_scan_ssids; 5736 u8 max_match_sets; 5737 u16 max_scan_ie_len; 5738 u16 max_sched_scan_ie_len; 5739 u32 max_sched_scan_plans; 5740 u32 max_sched_scan_plan_interval; 5741 u32 max_sched_scan_plan_iterations; 5742 5743 int n_cipher_suites; 5744 const u32 *cipher_suites; 5745 5746 int n_akm_suites; 5747 const u32 *akm_suites; 5748 5749 const struct wiphy_iftype_akm_suites *iftype_akm_suites; 5750 unsigned int num_iftype_akm_suites; 5751 5752 u8 retry_short; 5753 u8 retry_long; 5754 u32 frag_threshold; 5755 u32 rts_threshold; 5756 u8 coverage_class; 5757 5758 char fw_version[ETHTOOL_FWVERS_LEN]; 5759 u32 hw_version; 5760 5761 #ifdef CONFIG_PM 5762 const struct wiphy_wowlan_support *wowlan; 5763 struct cfg80211_wowlan *wowlan_config; 5764 #endif 5765 5766 u16 max_remain_on_channel_duration; 5767 5768 u8 max_num_pmkids; 5769 5770 u32 available_antennas_tx; 5771 u32 available_antennas_rx; 5772 5773 u32 probe_resp_offload; 5774 5775 const u8 *extended_capabilities, *extended_capabilities_mask; 5776 u8 extended_capabilities_len; 5777 5778 const struct wiphy_iftype_ext_capab *iftype_ext_capab; 5779 unsigned int num_iftype_ext_capab; 5780 5781 const void *privid; 5782 5783 struct ieee80211_supported_band *bands[NUM_NL80211_BANDS]; 5784 5785 void (*reg_notifier)(struct wiphy *wiphy, 5786 struct regulatory_request *request); 5787 5788 /* fields below are read-only, assigned by cfg80211 */ 5789 5790 const struct ieee80211_regdomain __rcu *regd; 5791 5792 struct device dev; 5793 5794 bool registered; 5795 5796 struct dentry *debugfsdir; 5797 5798 const struct ieee80211_ht_cap *ht_capa_mod_mask; 5799 const struct ieee80211_vht_cap *vht_capa_mod_mask; 5800 5801 struct list_head wdev_list; 5802 5803 possible_net_t _net; 5804 5805 #ifdef CONFIG_CFG80211_WEXT 5806 const struct iw_handler_def *wext; 5807 #endif 5808 5809 const struct wiphy_coalesce_support *coalesce; 5810 5811 const struct wiphy_vendor_command *vendor_commands; 5812 const struct nl80211_vendor_cmd_info *vendor_events; 5813 int n_vendor_commands, n_vendor_events; 5814 5815 u16 max_ap_assoc_sta; 5816 5817 u8 max_num_csa_counters; 5818 5819 u32 bss_select_support; 5820 5821 u8 nan_supported_bands; 5822 5823 u32 txq_limit; 5824 u32 txq_memory_limit; 5825 u32 txq_quantum; 5826 5827 unsigned long tx_queue_len; 5828 5829 u8 support_mbssid:1, 5830 support_only_he_mbssid:1; 5831 5832 const struct cfg80211_pmsr_capabilities *pmsr_capa; 5833 5834 struct { 5835 u64 peer, vif; 5836 u8 max_retry; 5837 } tid_config_support; 5838 5839 u8 max_data_retry_count; 5840 5841 const struct cfg80211_sar_capa *sar_capa; 5842 5843 struct rfkill *rfkill; 5844 5845 u8 mbssid_max_interfaces; 5846 u8 ema_max_profile_periodicity; 5847 u16 max_num_akm_suites; 5848 5849 u16 hw_timestamp_max_peers; 5850 5851 int n_radio; 5852 const struct wiphy_radio *radio; 5853 5854 char priv[] __aligned(NETDEV_ALIGN); 5855 }; 5856 5857 static inline struct net *wiphy_net(struct wiphy *wiphy) 5858 { 5859 return read_pnet(&wiphy->_net); 5860 } 5861 5862 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 5863 { 5864 write_pnet(&wiphy->_net, net); 5865 } 5866 5867 /** 5868 * wiphy_priv - return priv from wiphy 5869 * 5870 * @wiphy: the wiphy whose priv pointer to return 5871 * Return: The priv of @wiphy. 5872 */ 5873 static inline void *wiphy_priv(struct wiphy *wiphy) 5874 { 5875 BUG_ON(!wiphy); 5876 return &wiphy->priv; 5877 } 5878 5879 /** 5880 * priv_to_wiphy - return the wiphy containing the priv 5881 * 5882 * @priv: a pointer previously returned by wiphy_priv 5883 * Return: The wiphy of @priv. 5884 */ 5885 static inline struct wiphy *priv_to_wiphy(void *priv) 5886 { 5887 BUG_ON(!priv); 5888 return container_of(priv, struct wiphy, priv); 5889 } 5890 5891 /** 5892 * set_wiphy_dev - set device pointer for wiphy 5893 * 5894 * @wiphy: The wiphy whose device to bind 5895 * @dev: The device to parent it to 5896 */ 5897 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 5898 { 5899 wiphy->dev.parent = dev; 5900 } 5901 5902 /** 5903 * wiphy_dev - get wiphy dev pointer 5904 * 5905 * @wiphy: The wiphy whose device struct to look up 5906 * Return: The dev of @wiphy. 5907 */ 5908 static inline struct device *wiphy_dev(struct wiphy *wiphy) 5909 { 5910 return wiphy->dev.parent; 5911 } 5912 5913 /** 5914 * wiphy_name - get wiphy name 5915 * 5916 * @wiphy: The wiphy whose name to return 5917 * Return: The name of @wiphy. 5918 */ 5919 static inline const char *wiphy_name(const struct wiphy *wiphy) 5920 { 5921 return dev_name(&wiphy->dev); 5922 } 5923 5924 /** 5925 * wiphy_new_nm - create a new wiphy for use with cfg80211 5926 * 5927 * @ops: The configuration operations for this device 5928 * @sizeof_priv: The size of the private area to allocate 5929 * @requested_name: Request a particular name. 5930 * NULL is valid value, and means use the default phy%d naming. 5931 * 5932 * Create a new wiphy and associate the given operations with it. 5933 * @sizeof_priv bytes are allocated for private use. 5934 * 5935 * Return: A pointer to the new wiphy. This pointer must be 5936 * assigned to each netdev's ieee80211_ptr for proper operation. 5937 */ 5938 struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv, 5939 const char *requested_name); 5940 5941 /** 5942 * wiphy_new - create a new wiphy for use with cfg80211 5943 * 5944 * @ops: The configuration operations for this device 5945 * @sizeof_priv: The size of the private area to allocate 5946 * 5947 * Create a new wiphy and associate the given operations with it. 5948 * @sizeof_priv bytes are allocated for private use. 5949 * 5950 * Return: A pointer to the new wiphy. This pointer must be 5951 * assigned to each netdev's ieee80211_ptr for proper operation. 5952 */ 5953 static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops, 5954 int sizeof_priv) 5955 { 5956 return wiphy_new_nm(ops, sizeof_priv, NULL); 5957 } 5958 5959 /** 5960 * wiphy_register - register a wiphy with cfg80211 5961 * 5962 * @wiphy: The wiphy to register. 5963 * 5964 * Return: A non-negative wiphy index or a negative error code. 5965 */ 5966 int wiphy_register(struct wiphy *wiphy); 5967 5968 /* this is a define for better error reporting (file/line) */ 5969 #define lockdep_assert_wiphy(wiphy) lockdep_assert_held(&(wiphy)->mtx) 5970 5971 /** 5972 * rcu_dereference_wiphy - rcu_dereference with debug checking 5973 * @wiphy: the wiphy to check the locking on 5974 * @p: The pointer to read, prior to dereferencing 5975 * 5976 * Do an rcu_dereference(p), but check caller either holds rcu_read_lock() 5977 * or RTNL. Note: Please prefer wiphy_dereference() or rcu_dereference(). 5978 */ 5979 #define rcu_dereference_wiphy(wiphy, p) \ 5980 rcu_dereference_check(p, lockdep_is_held(&wiphy->mtx)) 5981 5982 /** 5983 * wiphy_dereference - fetch RCU pointer when updates are prevented by wiphy mtx 5984 * @wiphy: the wiphy to check the locking on 5985 * @p: The pointer to read, prior to dereferencing 5986 * 5987 * Return: the value of the specified RCU-protected pointer, but omit the 5988 * READ_ONCE(), because caller holds the wiphy mutex used for updates. 5989 */ 5990 #define wiphy_dereference(wiphy, p) \ 5991 rcu_dereference_protected(p, lockdep_is_held(&wiphy->mtx)) 5992 5993 /** 5994 * get_wiphy_regdom - get custom regdomain for the given wiphy 5995 * @wiphy: the wiphy to get the regdomain from 5996 * 5997 * Context: Requires any of RTNL, wiphy mutex or RCU protection. 5998 * 5999 * Return: pointer to the regulatory domain associated with the wiphy 6000 */ 6001 const struct ieee80211_regdomain *get_wiphy_regdom(struct wiphy *wiphy); 6002 6003 /** 6004 * wiphy_unregister - deregister a wiphy from cfg80211 6005 * 6006 * @wiphy: The wiphy to unregister. 6007 * 6008 * After this call, no more requests can be made with this priv 6009 * pointer, but the call may sleep to wait for an outstanding 6010 * request that is being handled. 6011 */ 6012 void wiphy_unregister(struct wiphy *wiphy); 6013 6014 /** 6015 * wiphy_free - free wiphy 6016 * 6017 * @wiphy: The wiphy to free 6018 */ 6019 void wiphy_free(struct wiphy *wiphy); 6020 6021 /* internal structs */ 6022 struct cfg80211_conn; 6023 struct cfg80211_internal_bss; 6024 struct cfg80211_cached_keys; 6025 struct cfg80211_cqm_config; 6026 6027 /** 6028 * wiphy_lock - lock the wiphy 6029 * @wiphy: the wiphy to lock 6030 * 6031 * This is needed around registering and unregistering netdevs that 6032 * aren't created through cfg80211 calls, since that requires locking 6033 * in cfg80211 when the notifiers is called, but that cannot 6034 * differentiate which way it's called. 6035 * 6036 * It can also be used by drivers for their own purposes. 6037 * 6038 * When cfg80211 ops are called, the wiphy is already locked. 6039 * 6040 * Note that this makes sure that no workers that have been queued 6041 * with wiphy_queue_work() are running. 6042 */ 6043 static inline void wiphy_lock(struct wiphy *wiphy) 6044 __acquires(&wiphy->mtx) 6045 { 6046 mutex_lock(&wiphy->mtx); 6047 __acquire(&wiphy->mtx); 6048 } 6049 6050 /** 6051 * wiphy_unlock - unlock the wiphy again 6052 * @wiphy: the wiphy to unlock 6053 */ 6054 static inline void wiphy_unlock(struct wiphy *wiphy) 6055 __releases(&wiphy->mtx) 6056 { 6057 __release(&wiphy->mtx); 6058 mutex_unlock(&wiphy->mtx); 6059 } 6060 6061 DEFINE_GUARD(wiphy, struct wiphy *, 6062 mutex_lock(&_T->mtx), 6063 mutex_unlock(&_T->mtx)) 6064 6065 struct wiphy_work; 6066 typedef void (*wiphy_work_func_t)(struct wiphy *, struct wiphy_work *); 6067 6068 struct wiphy_work { 6069 struct list_head entry; 6070 wiphy_work_func_t func; 6071 }; 6072 6073 static inline void wiphy_work_init(struct wiphy_work *work, 6074 wiphy_work_func_t func) 6075 { 6076 INIT_LIST_HEAD(&work->entry); 6077 work->func = func; 6078 } 6079 6080 /** 6081 * wiphy_work_queue - queue work for the wiphy 6082 * @wiphy: the wiphy to queue for 6083 * @work: the work item 6084 * 6085 * This is useful for work that must be done asynchronously, and work 6086 * queued here has the special property that the wiphy mutex will be 6087 * held as if wiphy_lock() was called, and that it cannot be running 6088 * after wiphy_lock() was called. Therefore, wiphy_cancel_work() can 6089 * use just cancel_work() instead of cancel_work_sync(), it requires 6090 * being in a section protected by wiphy_lock(). 6091 */ 6092 void wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *work); 6093 6094 /** 6095 * wiphy_work_cancel - cancel previously queued work 6096 * @wiphy: the wiphy, for debug purposes 6097 * @work: the work to cancel 6098 * 6099 * Cancel the work *without* waiting for it, this assumes being 6100 * called under the wiphy mutex acquired by wiphy_lock(). 6101 */ 6102 void wiphy_work_cancel(struct wiphy *wiphy, struct wiphy_work *work); 6103 6104 /** 6105 * wiphy_work_flush - flush previously queued work 6106 * @wiphy: the wiphy, for debug purposes 6107 * @work: the work to flush, this can be %NULL to flush all work 6108 * 6109 * Flush the work (i.e. run it if pending). This must be called 6110 * under the wiphy mutex acquired by wiphy_lock(). 6111 */ 6112 void wiphy_work_flush(struct wiphy *wiphy, struct wiphy_work *work); 6113 6114 struct wiphy_delayed_work { 6115 struct wiphy_work work; 6116 struct wiphy *wiphy; 6117 struct timer_list timer; 6118 }; 6119 6120 void wiphy_delayed_work_timer(struct timer_list *t); 6121 6122 static inline void wiphy_delayed_work_init(struct wiphy_delayed_work *dwork, 6123 wiphy_work_func_t func) 6124 { 6125 timer_setup(&dwork->timer, wiphy_delayed_work_timer, 0); 6126 wiphy_work_init(&dwork->work, func); 6127 } 6128 6129 /** 6130 * wiphy_delayed_work_queue - queue delayed work for the wiphy 6131 * @wiphy: the wiphy to queue for 6132 * @dwork: the delayable worker 6133 * @delay: number of jiffies to wait before queueing 6134 * 6135 * This is useful for work that must be done asynchronously, and work 6136 * queued here has the special property that the wiphy mutex will be 6137 * held as if wiphy_lock() was called, and that it cannot be running 6138 * after wiphy_lock() was called. Therefore, wiphy_cancel_work() can 6139 * use just cancel_work() instead of cancel_work_sync(), it requires 6140 * being in a section protected by wiphy_lock(). 6141 */ 6142 void wiphy_delayed_work_queue(struct wiphy *wiphy, 6143 struct wiphy_delayed_work *dwork, 6144 unsigned long delay); 6145 6146 /** 6147 * wiphy_delayed_work_cancel - cancel previously queued delayed work 6148 * @wiphy: the wiphy, for debug purposes 6149 * @dwork: the delayed work to cancel 6150 * 6151 * Cancel the work *without* waiting for it, this assumes being 6152 * called under the wiphy mutex acquired by wiphy_lock(). 6153 */ 6154 void wiphy_delayed_work_cancel(struct wiphy *wiphy, 6155 struct wiphy_delayed_work *dwork); 6156 6157 /** 6158 * wiphy_delayed_work_flush - flush previously queued delayed work 6159 * @wiphy: the wiphy, for debug purposes 6160 * @dwork: the delayed work to flush 6161 * 6162 * Flush the work (i.e. run it if pending). This must be called 6163 * under the wiphy mutex acquired by wiphy_lock(). 6164 */ 6165 void wiphy_delayed_work_flush(struct wiphy *wiphy, 6166 struct wiphy_delayed_work *dwork); 6167 6168 /** 6169 * wiphy_delayed_work_pending - Find out whether a wiphy delayable 6170 * work item is currently pending. 6171 * 6172 * @wiphy: the wiphy, for debug purposes 6173 * @dwork: the delayed work in question 6174 * 6175 * Return: true if timer is pending, false otherwise 6176 * 6177 * How wiphy_delayed_work_queue() works is by setting a timer which 6178 * when it expires calls wiphy_work_queue() to queue the wiphy work. 6179 * Because wiphy_delayed_work_queue() uses mod_timer(), if it is 6180 * called twice and the second call happens before the first call 6181 * deadline, the work will rescheduled for the second deadline and 6182 * won't run before that. 6183 * 6184 * wiphy_delayed_work_pending() can be used to detect if calling 6185 * wiphy_work_delayed_work_queue() would start a new work schedule 6186 * or delayed a previous one. As seen below it cannot be used to 6187 * detect precisely if the work has finished to execute nor if it 6188 * is currently executing. 6189 * 6190 * CPU0 CPU1 6191 * wiphy_delayed_work_queue(wk) 6192 * mod_timer(wk->timer) 6193 * wiphy_delayed_work_pending(wk) -> true 6194 * 6195 * [...] 6196 * expire_timers(wk->timer) 6197 * detach_timer(wk->timer) 6198 * wiphy_delayed_work_pending(wk) -> false 6199 * wk->timer->function() | 6200 * wiphy_work_queue(wk) | delayed work pending 6201 * list_add_tail() | returns false but 6202 * queue_work(cfg80211_wiphy_work) | wk->func() has not 6203 * | been run yet 6204 * [...] | 6205 * cfg80211_wiphy_work() | 6206 * wk->func() V 6207 * 6208 */ 6209 bool wiphy_delayed_work_pending(struct wiphy *wiphy, 6210 struct wiphy_delayed_work *dwork); 6211 6212 /** 6213 * enum ieee80211_ap_reg_power - regulatory power for an Access Point 6214 * 6215 * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode 6216 * @IEEE80211_REG_LPI_AP: Indoor Access Point 6217 * @IEEE80211_REG_SP_AP: Standard power Access Point 6218 * @IEEE80211_REG_VLP_AP: Very low power Access Point 6219 */ 6220 enum ieee80211_ap_reg_power { 6221 IEEE80211_REG_UNSET_AP, 6222 IEEE80211_REG_LPI_AP, 6223 IEEE80211_REG_SP_AP, 6224 IEEE80211_REG_VLP_AP, 6225 }; 6226 6227 /** 6228 * struct wireless_dev - wireless device state 6229 * 6230 * For netdevs, this structure must be allocated by the driver 6231 * that uses the ieee80211_ptr field in struct net_device (this 6232 * is intentional so it can be allocated along with the netdev.) 6233 * It need not be registered then as netdev registration will 6234 * be intercepted by cfg80211 to see the new wireless device, 6235 * however, drivers must lock the wiphy before registering or 6236 * unregistering netdevs if they pre-create any netdevs (in ops 6237 * called from cfg80211, the wiphy is already locked.) 6238 * 6239 * For non-netdev uses, it must also be allocated by the driver 6240 * in response to the cfg80211 callbacks that require it, as 6241 * there's no netdev registration in that case it may not be 6242 * allocated outside of callback operations that return it. 6243 * 6244 * @wiphy: pointer to hardware description 6245 * @iftype: interface type 6246 * @registered: is this wdev already registered with cfg80211 6247 * @registering: indicates we're doing registration under wiphy lock 6248 * for the notifier 6249 * @list: (private) Used to collect the interfaces 6250 * @netdev: (private) Used to reference back to the netdev, may be %NULL 6251 * @identifier: (private) Identifier used in nl80211 to identify this 6252 * wireless device if it has no netdev 6253 * @u: union containing data specific to @iftype 6254 * @connected: indicates if connected or not (STA mode) 6255 * @wext: (private) Used by the internal wireless extensions compat code 6256 * @wext.ibss: (private) IBSS data part of wext handling 6257 * @wext.connect: (private) connection handling data 6258 * @wext.keys: (private) (WEP) key data 6259 * @wext.ie: (private) extra elements for association 6260 * @wext.ie_len: (private) length of extra elements 6261 * @wext.bssid: (private) selected network BSSID 6262 * @wext.ssid: (private) selected network SSID 6263 * @wext.default_key: (private) selected default key index 6264 * @wext.default_mgmt_key: (private) selected default management key index 6265 * @wext.prev_bssid: (private) previous BSSID for reassociation 6266 * @wext.prev_bssid_valid: (private) previous BSSID validity 6267 * @use_4addr: indicates 4addr mode is used on this interface, must be 6268 * set by driver (if supported) on add_interface BEFORE registering the 6269 * netdev and may otherwise be used by driver read-only, will be update 6270 * by cfg80211 on change_interface 6271 * @mgmt_registrations: list of registrations for management frames 6272 * @mgmt_registrations_need_update: mgmt registrations were updated, 6273 * need to propagate the update to the driver 6274 * @address: The address for this device, valid only if @netdev is %NULL 6275 * @is_running: true if this is a non-netdev device that has been started, e.g. 6276 * the P2P Device. 6277 * @ps: powersave mode is enabled 6278 * @ps_timeout: dynamic powersave timeout 6279 * @ap_unexpected_nlportid: (private) netlink port ID of application 6280 * registered for unexpected class 3 frames (AP mode) 6281 * @conn: (private) cfg80211 software SME connection state machine data 6282 * @connect_keys: (private) keys to set after connection is established 6283 * @conn_bss_type: connecting/connected BSS type 6284 * @conn_owner_nlportid: (private) connection owner socket port ID 6285 * @disconnect_wk: (private) auto-disconnect work 6286 * @disconnect_bssid: (private) the BSSID to use for auto-disconnect 6287 * @event_list: (private) list for internal event processing 6288 * @event_lock: (private) lock for event list 6289 * @owner_nlportid: (private) owner socket port ID 6290 * @nl_owner_dead: (private) owner socket went away 6291 * @cqm_rssi_work: (private) CQM RSSI reporting work 6292 * @cqm_config: (private) nl80211 RSSI monitor state 6293 * @pmsr_list: (private) peer measurement requests 6294 * @pmsr_lock: (private) peer measurements requests/results lock 6295 * @pmsr_free_wk: (private) peer measurements cleanup work 6296 * @unprot_beacon_reported: (private) timestamp of last 6297 * unprotected beacon report 6298 * @links: array of %IEEE80211_MLD_MAX_NUM_LINKS elements containing @addr 6299 * @ap and @client for each link 6300 * @links.cac_started: true if DFS channel availability check has been 6301 * started 6302 * @links.cac_start_time: timestamp (jiffies) when the dfs state was 6303 * entered. 6304 * @links.cac_time_ms: CAC time in ms 6305 * @valid_links: bitmap describing what elements of @links are valid 6306 * @radio_mask: Bitmask of radios that this interface is allowed to operate on. 6307 */ 6308 struct wireless_dev { 6309 struct wiphy *wiphy; 6310 enum nl80211_iftype iftype; 6311 6312 /* the remainder of this struct should be private to cfg80211 */ 6313 struct list_head list; 6314 struct net_device *netdev; 6315 6316 u32 identifier; 6317 6318 struct list_head mgmt_registrations; 6319 u8 mgmt_registrations_need_update:1; 6320 6321 bool use_4addr, is_running, registered, registering; 6322 6323 u8 address[ETH_ALEN] __aligned(sizeof(u16)); 6324 6325 /* currently used for IBSS and SME - might be rearranged later */ 6326 struct cfg80211_conn *conn; 6327 struct cfg80211_cached_keys *connect_keys; 6328 enum ieee80211_bss_type conn_bss_type; 6329 u32 conn_owner_nlportid; 6330 6331 struct work_struct disconnect_wk; 6332 u8 disconnect_bssid[ETH_ALEN]; 6333 6334 struct list_head event_list; 6335 spinlock_t event_lock; 6336 6337 u8 connected:1; 6338 6339 bool ps; 6340 int ps_timeout; 6341 6342 u32 ap_unexpected_nlportid; 6343 6344 u32 owner_nlportid; 6345 bool nl_owner_dead; 6346 6347 #ifdef CONFIG_CFG80211_WEXT 6348 /* wext data */ 6349 struct { 6350 struct cfg80211_ibss_params ibss; 6351 struct cfg80211_connect_params connect; 6352 struct cfg80211_cached_keys *keys; 6353 const u8 *ie; 6354 size_t ie_len; 6355 u8 bssid[ETH_ALEN]; 6356 u8 prev_bssid[ETH_ALEN]; 6357 u8 ssid[IEEE80211_MAX_SSID_LEN]; 6358 s8 default_key, default_mgmt_key; 6359 bool prev_bssid_valid; 6360 } wext; 6361 #endif 6362 6363 struct wiphy_work cqm_rssi_work; 6364 struct cfg80211_cqm_config __rcu *cqm_config; 6365 6366 struct list_head pmsr_list; 6367 spinlock_t pmsr_lock; 6368 struct work_struct pmsr_free_wk; 6369 6370 unsigned long unprot_beacon_reported; 6371 6372 union { 6373 struct { 6374 u8 connected_addr[ETH_ALEN] __aligned(2); 6375 u8 ssid[IEEE80211_MAX_SSID_LEN]; 6376 u8 ssid_len; 6377 } client; 6378 struct { 6379 int beacon_interval; 6380 struct cfg80211_chan_def preset_chandef; 6381 struct cfg80211_chan_def chandef; 6382 u8 id[IEEE80211_MAX_MESH_ID_LEN]; 6383 u8 id_len, id_up_len; 6384 } mesh; 6385 struct { 6386 struct cfg80211_chan_def preset_chandef; 6387 u8 ssid[IEEE80211_MAX_SSID_LEN]; 6388 u8 ssid_len; 6389 } ap; 6390 struct { 6391 struct cfg80211_internal_bss *current_bss; 6392 struct cfg80211_chan_def chandef; 6393 int beacon_interval; 6394 u8 ssid[IEEE80211_MAX_SSID_LEN]; 6395 u8 ssid_len; 6396 } ibss; 6397 struct { 6398 struct cfg80211_chan_def chandef; 6399 } ocb; 6400 } u; 6401 6402 struct { 6403 u8 addr[ETH_ALEN] __aligned(2); 6404 union { 6405 struct { 6406 unsigned int beacon_interval; 6407 struct cfg80211_chan_def chandef; 6408 } ap; 6409 struct { 6410 struct cfg80211_internal_bss *current_bss; 6411 } client; 6412 }; 6413 6414 bool cac_started; 6415 unsigned long cac_start_time; 6416 unsigned int cac_time_ms; 6417 } links[IEEE80211_MLD_MAX_NUM_LINKS]; 6418 u16 valid_links; 6419 6420 u32 radio_mask; 6421 }; 6422 6423 static inline const u8 *wdev_address(struct wireless_dev *wdev) 6424 { 6425 if (wdev->netdev) 6426 return wdev->netdev->dev_addr; 6427 return wdev->address; 6428 } 6429 6430 static inline bool wdev_running(struct wireless_dev *wdev) 6431 { 6432 if (wdev->netdev) 6433 return netif_running(wdev->netdev); 6434 return wdev->is_running; 6435 } 6436 6437 /** 6438 * wdev_priv - return wiphy priv from wireless_dev 6439 * 6440 * @wdev: The wireless device whose wiphy's priv pointer to return 6441 * Return: The wiphy priv of @wdev. 6442 */ 6443 static inline void *wdev_priv(struct wireless_dev *wdev) 6444 { 6445 BUG_ON(!wdev); 6446 return wiphy_priv(wdev->wiphy); 6447 } 6448 6449 /** 6450 * wdev_chandef - return chandef pointer from wireless_dev 6451 * @wdev: the wdev 6452 * @link_id: the link ID for MLO 6453 * 6454 * Return: The chandef depending on the mode, or %NULL. 6455 */ 6456 struct cfg80211_chan_def *wdev_chandef(struct wireless_dev *wdev, 6457 unsigned int link_id); 6458 6459 static inline void WARN_INVALID_LINK_ID(struct wireless_dev *wdev, 6460 unsigned int link_id) 6461 { 6462 WARN_ON(link_id && !wdev->valid_links); 6463 WARN_ON(wdev->valid_links && 6464 !(wdev->valid_links & BIT(link_id))); 6465 } 6466 6467 #define for_each_valid_link(link_info, link_id) \ 6468 for (link_id = 0; \ 6469 link_id < ((link_info)->valid_links ? \ 6470 ARRAY_SIZE((link_info)->links) : 1); \ 6471 link_id++) \ 6472 if (!(link_info)->valid_links || \ 6473 ((link_info)->valid_links & BIT(link_id))) 6474 6475 /** 6476 * DOC: Utility functions 6477 * 6478 * cfg80211 offers a number of utility functions that can be useful. 6479 */ 6480 6481 /** 6482 * ieee80211_channel_equal - compare two struct ieee80211_channel 6483 * 6484 * @a: 1st struct ieee80211_channel 6485 * @b: 2nd struct ieee80211_channel 6486 * Return: true if center frequency of @a == @b 6487 */ 6488 static inline bool 6489 ieee80211_channel_equal(struct ieee80211_channel *a, 6490 struct ieee80211_channel *b) 6491 { 6492 return (a->center_freq == b->center_freq && 6493 a->freq_offset == b->freq_offset); 6494 } 6495 6496 /** 6497 * ieee80211_channel_to_khz - convert ieee80211_channel to frequency in KHz 6498 * @chan: struct ieee80211_channel to convert 6499 * Return: The corresponding frequency (in KHz) 6500 */ 6501 static inline u32 6502 ieee80211_channel_to_khz(const struct ieee80211_channel *chan) 6503 { 6504 return MHZ_TO_KHZ(chan->center_freq) + chan->freq_offset; 6505 } 6506 6507 /** 6508 * ieee80211_s1g_channel_width - get allowed channel width from @chan 6509 * 6510 * Only allowed for band NL80211_BAND_S1GHZ 6511 * @chan: channel 6512 * Return: The allowed channel width for this center_freq 6513 */ 6514 enum nl80211_chan_width 6515 ieee80211_s1g_channel_width(const struct ieee80211_channel *chan); 6516 6517 /** 6518 * ieee80211_channel_to_freq_khz - convert channel number to frequency 6519 * @chan: channel number 6520 * @band: band, necessary due to channel number overlap 6521 * Return: The corresponding frequency (in KHz), or 0 if the conversion failed. 6522 */ 6523 u32 ieee80211_channel_to_freq_khz(int chan, enum nl80211_band band); 6524 6525 /** 6526 * ieee80211_channel_to_frequency - convert channel number to frequency 6527 * @chan: channel number 6528 * @band: band, necessary due to channel number overlap 6529 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed. 6530 */ 6531 static inline int 6532 ieee80211_channel_to_frequency(int chan, enum nl80211_band band) 6533 { 6534 return KHZ_TO_MHZ(ieee80211_channel_to_freq_khz(chan, band)); 6535 } 6536 6537 /** 6538 * ieee80211_freq_khz_to_channel - convert frequency to channel number 6539 * @freq: center frequency in KHz 6540 * Return: The corresponding channel, or 0 if the conversion failed. 6541 */ 6542 int ieee80211_freq_khz_to_channel(u32 freq); 6543 6544 /** 6545 * ieee80211_frequency_to_channel - convert frequency to channel number 6546 * @freq: center frequency in MHz 6547 * Return: The corresponding channel, or 0 if the conversion failed. 6548 */ 6549 static inline int 6550 ieee80211_frequency_to_channel(int freq) 6551 { 6552 return ieee80211_freq_khz_to_channel(MHZ_TO_KHZ(freq)); 6553 } 6554 6555 /** 6556 * ieee80211_get_channel_khz - get channel struct from wiphy for specified 6557 * frequency 6558 * @wiphy: the struct wiphy to get the channel for 6559 * @freq: the center frequency (in KHz) of the channel 6560 * Return: The channel struct from @wiphy at @freq. 6561 */ 6562 struct ieee80211_channel * 6563 ieee80211_get_channel_khz(struct wiphy *wiphy, u32 freq); 6564 6565 /** 6566 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 6567 * 6568 * @wiphy: the struct wiphy to get the channel for 6569 * @freq: the center frequency (in MHz) of the channel 6570 * Return: The channel struct from @wiphy at @freq. 6571 */ 6572 static inline struct ieee80211_channel * 6573 ieee80211_get_channel(struct wiphy *wiphy, int freq) 6574 { 6575 return ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(freq)); 6576 } 6577 6578 /** 6579 * cfg80211_channel_is_psc - Check if the channel is a 6 GHz PSC 6580 * @chan: control channel to check 6581 * 6582 * The Preferred Scanning Channels (PSC) are defined in 6583 * Draft IEEE P802.11ax/D5.0, 26.17.2.3.3 6584 * 6585 * Return: %true if channel is a PSC, %false otherwise 6586 */ 6587 static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan) 6588 { 6589 if (chan->band != NL80211_BAND_6GHZ) 6590 return false; 6591 6592 return ieee80211_frequency_to_channel(chan->center_freq) % 16 == 5; 6593 } 6594 6595 /** 6596 * cfg80211_radio_chandef_valid - Check if the radio supports the chandef 6597 * 6598 * @radio: wiphy radio 6599 * @chandef: chandef for current channel 6600 * 6601 * Return: whether or not the given chandef is valid for the given radio 6602 */ 6603 bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio, 6604 const struct cfg80211_chan_def *chandef); 6605 6606 /** 6607 * cfg80211_wdev_channel_allowed - Check if the wdev may use the channel 6608 * 6609 * @wdev: the wireless device 6610 * @chan: channel to check 6611 * 6612 * Return: whether or not the wdev may use the channel 6613 */ 6614 bool cfg80211_wdev_channel_allowed(struct wireless_dev *wdev, 6615 struct ieee80211_channel *chan); 6616 6617 /** 6618 * ieee80211_get_response_rate - get basic rate for a given rate 6619 * 6620 * @sband: the band to look for rates in 6621 * @basic_rates: bitmap of basic rates 6622 * @bitrate: the bitrate for which to find the basic rate 6623 * 6624 * Return: The basic rate corresponding to a given bitrate, that 6625 * is the next lower bitrate contained in the basic rate map, 6626 * which is, for this function, given as a bitmap of indices of 6627 * rates in the band's bitrate table. 6628 */ 6629 const struct ieee80211_rate * 6630 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 6631 u32 basic_rates, int bitrate); 6632 6633 /** 6634 * ieee80211_mandatory_rates - get mandatory rates for a given band 6635 * @sband: the band to look for rates in 6636 * 6637 * Return: a bitmap of the mandatory rates for the given band, bits 6638 * are set according to the rate position in the bitrates array. 6639 */ 6640 u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband); 6641 6642 /* 6643 * Radiotap parsing functions -- for controlled injection support 6644 * 6645 * Implemented in net/wireless/radiotap.c 6646 * Documentation in Documentation/networking/radiotap-headers.rst 6647 */ 6648 6649 struct radiotap_align_size { 6650 uint8_t align:4, size:4; 6651 }; 6652 6653 struct ieee80211_radiotap_namespace { 6654 const struct radiotap_align_size *align_size; 6655 int n_bits; 6656 uint32_t oui; 6657 uint8_t subns; 6658 }; 6659 6660 struct ieee80211_radiotap_vendor_namespaces { 6661 const struct ieee80211_radiotap_namespace *ns; 6662 int n_ns; 6663 }; 6664 6665 /** 6666 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 6667 * @this_arg_index: index of current arg, valid after each successful call 6668 * to ieee80211_radiotap_iterator_next() 6669 * @this_arg: pointer to current radiotap arg; it is valid after each 6670 * call to ieee80211_radiotap_iterator_next() but also after 6671 * ieee80211_radiotap_iterator_init() where it will point to 6672 * the beginning of the actual data portion 6673 * @this_arg_size: length of the current arg, for convenience 6674 * @current_namespace: pointer to the current namespace definition 6675 * (or internally %NULL if the current namespace is unknown) 6676 * @is_radiotap_ns: indicates whether the current namespace is the default 6677 * radiotap namespace or not 6678 * 6679 * @_rtheader: pointer to the radiotap header we are walking through 6680 * @_max_length: length of radiotap header in cpu byte ordering 6681 * @_arg_index: next argument index 6682 * @_arg: next argument pointer 6683 * @_next_bitmap: internal pointer to next present u32 6684 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 6685 * @_vns: vendor namespace definitions 6686 * @_next_ns_data: beginning of the next namespace's data 6687 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 6688 * next bitmap word 6689 * 6690 * Describes the radiotap parser state. Fields prefixed with an underscore 6691 * must not be used by users of the parser, only by the parser internally. 6692 */ 6693 6694 struct ieee80211_radiotap_iterator { 6695 struct ieee80211_radiotap_header *_rtheader; 6696 const struct ieee80211_radiotap_vendor_namespaces *_vns; 6697 const struct ieee80211_radiotap_namespace *current_namespace; 6698 6699 unsigned char *_arg, *_next_ns_data; 6700 __le32 *_next_bitmap; 6701 6702 unsigned char *this_arg; 6703 int this_arg_index; 6704 int this_arg_size; 6705 6706 int is_radiotap_ns; 6707 6708 int _max_length; 6709 int _arg_index; 6710 uint32_t _bitmap_shifter; 6711 int _reset_on_ext; 6712 }; 6713 6714 int 6715 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator, 6716 struct ieee80211_radiotap_header *radiotap_header, 6717 int max_length, 6718 const struct ieee80211_radiotap_vendor_namespaces *vns); 6719 6720 int 6721 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator); 6722 6723 6724 extern const unsigned char rfc1042_header[6]; 6725 extern const unsigned char bridge_tunnel_header[6]; 6726 6727 /** 6728 * ieee80211_get_hdrlen_from_skb - get header length from data 6729 * 6730 * @skb: the frame 6731 * 6732 * Given an skb with a raw 802.11 header at the data pointer this function 6733 * returns the 802.11 header length. 6734 * 6735 * Return: The 802.11 header length in bytes (not including encryption 6736 * headers). Or 0 if the data in the sk_buff is too short to contain a valid 6737 * 802.11 header. 6738 */ 6739 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 6740 6741 /** 6742 * ieee80211_hdrlen - get header length in bytes from frame control 6743 * @fc: frame control field in little-endian format 6744 * Return: The header length in bytes. 6745 */ 6746 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 6747 6748 /** 6749 * ieee80211_get_mesh_hdrlen - get mesh extension header length 6750 * @meshhdr: the mesh extension header, only the flags field 6751 * (first byte) will be accessed 6752 * Return: The length of the extension header, which is always at 6753 * least 6 bytes and at most 18 if address 5 and 6 are present. 6754 */ 6755 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); 6756 6757 /** 6758 * DOC: Data path helpers 6759 * 6760 * In addition to generic utilities, cfg80211 also offers 6761 * functions that help implement the data path for devices 6762 * that do not do the 802.11/802.3 conversion on the device. 6763 */ 6764 6765 /** 6766 * ieee80211_data_to_8023_exthdr - convert an 802.11 data frame to 802.3 6767 * @skb: the 802.11 data frame 6768 * @ehdr: pointer to a &struct ethhdr that will get the header, instead 6769 * of it being pushed into the SKB 6770 * @addr: the device MAC address 6771 * @iftype: the virtual interface type 6772 * @data_offset: offset of payload after the 802.11 header 6773 * @is_amsdu: true if the 802.11 header is A-MSDU 6774 * Return: 0 on success. Non-zero on error. 6775 */ 6776 int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr, 6777 const u8 *addr, enum nl80211_iftype iftype, 6778 u8 data_offset, bool is_amsdu); 6779 6780 /** 6781 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 6782 * @skb: the 802.11 data frame 6783 * @addr: the device MAC address 6784 * @iftype: the virtual interface type 6785 * Return: 0 on success. Non-zero on error. 6786 */ 6787 static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 6788 enum nl80211_iftype iftype) 6789 { 6790 return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype, 0, false); 6791 } 6792 6793 /** 6794 * ieee80211_is_valid_amsdu - check if subframe lengths of an A-MSDU are valid 6795 * 6796 * This is used to detect non-standard A-MSDU frames, e.g. the ones generated 6797 * by ath10k and ath11k, where the subframe length includes the length of the 6798 * mesh control field. 6799 * 6800 * @skb: The input A-MSDU frame without any headers. 6801 * @mesh_hdr: the type of mesh header to test 6802 * 0: non-mesh A-MSDU length field 6803 * 1: big-endian mesh A-MSDU length field 6804 * 2: little-endian mesh A-MSDU length field 6805 * Returns: true if subframe header lengths are valid for the @mesh_hdr mode 6806 */ 6807 bool ieee80211_is_valid_amsdu(struct sk_buff *skb, u8 mesh_hdr); 6808 6809 /** 6810 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 6811 * 6812 * Decode an IEEE 802.11 A-MSDU and convert it to a list of 802.3 frames. 6813 * The @list will be empty if the decode fails. The @skb must be fully 6814 * header-less before being passed in here; it is freed in this function. 6815 * 6816 * @skb: The input A-MSDU frame without any headers. 6817 * @list: The output list of 802.3 frames. It must be allocated and 6818 * initialized by the caller. 6819 * @addr: The device MAC address. 6820 * @iftype: The device interface type. 6821 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 6822 * @check_da: DA to check in the inner ethernet header, or NULL 6823 * @check_sa: SA to check in the inner ethernet header, or NULL 6824 * @mesh_control: see mesh_hdr in ieee80211_is_valid_amsdu 6825 */ 6826 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 6827 const u8 *addr, enum nl80211_iftype iftype, 6828 const unsigned int extra_headroom, 6829 const u8 *check_da, const u8 *check_sa, 6830 u8 mesh_control); 6831 6832 /** 6833 * ieee80211_get_8023_tunnel_proto - get RFC1042 or bridge tunnel encap protocol 6834 * 6835 * Check for RFC1042 or bridge tunnel header and fetch the encapsulated 6836 * protocol. 6837 * 6838 * @hdr: pointer to the MSDU payload 6839 * @proto: destination pointer to store the protocol 6840 * Return: true if encapsulation was found 6841 */ 6842 bool ieee80211_get_8023_tunnel_proto(const void *hdr, __be16 *proto); 6843 6844 /** 6845 * ieee80211_strip_8023_mesh_hdr - strip mesh header from converted 802.3 frames 6846 * 6847 * Strip the mesh header, which was left in by ieee80211_data_to_8023 as part 6848 * of the MSDU data. Also move any source/destination addresses from the mesh 6849 * header to the ethernet header (if present). 6850 * 6851 * @skb: The 802.3 frame with embedded mesh header 6852 * 6853 * Return: 0 on success. Non-zero on error. 6854 */ 6855 int ieee80211_strip_8023_mesh_hdr(struct sk_buff *skb); 6856 6857 /** 6858 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 6859 * @skb: the data frame 6860 * @qos_map: Interworking QoS mapping or %NULL if not in use 6861 * Return: The 802.1p/1d tag. 6862 */ 6863 unsigned int cfg80211_classify8021d(struct sk_buff *skb, 6864 struct cfg80211_qos_map *qos_map); 6865 6866 /** 6867 * cfg80211_find_elem_match - match information element and byte array in data 6868 * 6869 * @eid: element ID 6870 * @ies: data consisting of IEs 6871 * @len: length of data 6872 * @match: byte array to match 6873 * @match_len: number of bytes in the match array 6874 * @match_offset: offset in the IE data where the byte array should match. 6875 * Note the difference to cfg80211_find_ie_match() which considers 6876 * the offset to start from the element ID byte, but here we take 6877 * the data portion instead. 6878 * 6879 * Return: %NULL if the element ID could not be found or if 6880 * the element is invalid (claims to be longer than the given 6881 * data) or if the byte array doesn't match; otherwise return the 6882 * requested element struct. 6883 * 6884 * Note: There are no checks on the element length other than 6885 * having to fit into the given data and being large enough for the 6886 * byte array to match. 6887 */ 6888 const struct element * 6889 cfg80211_find_elem_match(u8 eid, const u8 *ies, unsigned int len, 6890 const u8 *match, unsigned int match_len, 6891 unsigned int match_offset); 6892 6893 /** 6894 * cfg80211_find_ie_match - match information element and byte array in data 6895 * 6896 * @eid: element ID 6897 * @ies: data consisting of IEs 6898 * @len: length of data 6899 * @match: byte array to match 6900 * @match_len: number of bytes in the match array 6901 * @match_offset: offset in the IE where the byte array should match. 6902 * If match_len is zero, this must also be set to zero. 6903 * Otherwise this must be set to 2 or more, because the first 6904 * byte is the element id, which is already compared to eid, and 6905 * the second byte is the IE length. 6906 * 6907 * Return: %NULL if the element ID could not be found or if 6908 * the element is invalid (claims to be longer than the given 6909 * data) or if the byte array doesn't match, or a pointer to the first 6910 * byte of the requested element, that is the byte containing the 6911 * element ID. 6912 * 6913 * Note: There are no checks on the element length other than 6914 * having to fit into the given data and being large enough for the 6915 * byte array to match. 6916 */ 6917 static inline const u8 * 6918 cfg80211_find_ie_match(u8 eid, const u8 *ies, unsigned int len, 6919 const u8 *match, unsigned int match_len, 6920 unsigned int match_offset) 6921 { 6922 /* match_offset can't be smaller than 2, unless match_len is 6923 * zero, in which case match_offset must be zero as well. 6924 */ 6925 if (WARN_ON((match_len && match_offset < 2) || 6926 (!match_len && match_offset))) 6927 return NULL; 6928 6929 return (const void *)cfg80211_find_elem_match(eid, ies, len, 6930 match, match_len, 6931 match_offset ? 6932 match_offset - 2 : 0); 6933 } 6934 6935 /** 6936 * cfg80211_find_elem - find information element in data 6937 * 6938 * @eid: element ID 6939 * @ies: data consisting of IEs 6940 * @len: length of data 6941 * 6942 * Return: %NULL if the element ID could not be found or if 6943 * the element is invalid (claims to be longer than the given 6944 * data) or if the byte array doesn't match; otherwise return the 6945 * requested element struct. 6946 * 6947 * Note: There are no checks on the element length other than 6948 * having to fit into the given data. 6949 */ 6950 static inline const struct element * 6951 cfg80211_find_elem(u8 eid, const u8 *ies, int len) 6952 { 6953 return cfg80211_find_elem_match(eid, ies, len, NULL, 0, 0); 6954 } 6955 6956 /** 6957 * cfg80211_find_ie - find information element in data 6958 * 6959 * @eid: element ID 6960 * @ies: data consisting of IEs 6961 * @len: length of data 6962 * 6963 * Return: %NULL if the element ID could not be found or if 6964 * the element is invalid (claims to be longer than the given 6965 * data), or a pointer to the first byte of the requested 6966 * element, that is the byte containing the element ID. 6967 * 6968 * Note: There are no checks on the element length other than 6969 * having to fit into the given data. 6970 */ 6971 static inline const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len) 6972 { 6973 return cfg80211_find_ie_match(eid, ies, len, NULL, 0, 0); 6974 } 6975 6976 /** 6977 * cfg80211_find_ext_elem - find information element with EID Extension in data 6978 * 6979 * @ext_eid: element ID Extension 6980 * @ies: data consisting of IEs 6981 * @len: length of data 6982 * 6983 * Return: %NULL if the extended element could not be found or if 6984 * the element is invalid (claims to be longer than the given 6985 * data) or if the byte array doesn't match; otherwise return the 6986 * requested element struct. 6987 * 6988 * Note: There are no checks on the element length other than 6989 * having to fit into the given data. 6990 */ 6991 static inline const struct element * 6992 cfg80211_find_ext_elem(u8 ext_eid, const u8 *ies, int len) 6993 { 6994 return cfg80211_find_elem_match(WLAN_EID_EXTENSION, ies, len, 6995 &ext_eid, 1, 0); 6996 } 6997 6998 /** 6999 * cfg80211_find_ext_ie - find information element with EID Extension in data 7000 * 7001 * @ext_eid: element ID Extension 7002 * @ies: data consisting of IEs 7003 * @len: length of data 7004 * 7005 * Return: %NULL if the extended element ID could not be found or if 7006 * the element is invalid (claims to be longer than the given 7007 * data), or a pointer to the first byte of the requested 7008 * element, that is the byte containing the element ID. 7009 * 7010 * Note: There are no checks on the element length other than 7011 * having to fit into the given data. 7012 */ 7013 static inline const u8 *cfg80211_find_ext_ie(u8 ext_eid, const u8 *ies, int len) 7014 { 7015 return cfg80211_find_ie_match(WLAN_EID_EXTENSION, ies, len, 7016 &ext_eid, 1, 2); 7017 } 7018 7019 /** 7020 * cfg80211_find_vendor_elem - find vendor specific information element in data 7021 * 7022 * @oui: vendor OUI 7023 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any 7024 * @ies: data consisting of IEs 7025 * @len: length of data 7026 * 7027 * Return: %NULL if the vendor specific element ID could not be found or if the 7028 * element is invalid (claims to be longer than the given data); otherwise 7029 * return the element structure for the requested element. 7030 * 7031 * Note: There are no checks on the element length other than having to fit into 7032 * the given data. 7033 */ 7034 const struct element *cfg80211_find_vendor_elem(unsigned int oui, int oui_type, 7035 const u8 *ies, 7036 unsigned int len); 7037 7038 /** 7039 * cfg80211_find_vendor_ie - find vendor specific information element in data 7040 * 7041 * @oui: vendor OUI 7042 * @oui_type: vendor-specific OUI type (must be < 0xff), negative means any 7043 * @ies: data consisting of IEs 7044 * @len: length of data 7045 * 7046 * Return: %NULL if the vendor specific element ID could not be found or if the 7047 * element is invalid (claims to be longer than the given data), or a pointer to 7048 * the first byte of the requested element, that is the byte containing the 7049 * element ID. 7050 * 7051 * Note: There are no checks on the element length other than having to fit into 7052 * the given data. 7053 */ 7054 static inline const u8 * 7055 cfg80211_find_vendor_ie(unsigned int oui, int oui_type, 7056 const u8 *ies, unsigned int len) 7057 { 7058 return (const void *)cfg80211_find_vendor_elem(oui, oui_type, ies, len); 7059 } 7060 7061 /** 7062 * enum cfg80211_rnr_iter_ret - reduced neighbor report iteration state 7063 * @RNR_ITER_CONTINUE: continue iterating with the next entry 7064 * @RNR_ITER_BREAK: break iteration and return success 7065 * @RNR_ITER_ERROR: break iteration and return error 7066 */ 7067 enum cfg80211_rnr_iter_ret { 7068 RNR_ITER_CONTINUE, 7069 RNR_ITER_BREAK, 7070 RNR_ITER_ERROR, 7071 }; 7072 7073 /** 7074 * cfg80211_iter_rnr - iterate reduced neighbor report entries 7075 * @elems: the frame elements to iterate RNR elements and then 7076 * their entries in 7077 * @elems_len: length of the elements 7078 * @iter: iteration function, see also &enum cfg80211_rnr_iter_ret 7079 * for the return value 7080 * @iter_data: additional data passed to the iteration function 7081 * Return: %true on success (after successfully iterating all entries 7082 * or if the iteration function returned %RNR_ITER_BREAK), 7083 * %false on error (iteration function returned %RNR_ITER_ERROR 7084 * or elements were malformed.) 7085 */ 7086 bool cfg80211_iter_rnr(const u8 *elems, size_t elems_len, 7087 enum cfg80211_rnr_iter_ret 7088 (*iter)(void *data, u8 type, 7089 const struct ieee80211_neighbor_ap_info *info, 7090 const u8 *tbtt_info, u8 tbtt_info_len), 7091 void *iter_data); 7092 7093 /** 7094 * cfg80211_defragment_element - Defrag the given element data into a buffer 7095 * 7096 * @elem: the element to defragment 7097 * @ies: elements where @elem is contained 7098 * @ieslen: length of @ies 7099 * @data: buffer to store element data, or %NULL to just determine size 7100 * @data_len: length of @data, or 0 7101 * @frag_id: the element ID of fragments 7102 * 7103 * Return: length of @data, or -EINVAL on error 7104 * 7105 * Copy out all data from an element that may be fragmented into @data, while 7106 * skipping all headers. 7107 * 7108 * The function uses memmove() internally. It is acceptable to defragment an 7109 * element in-place. 7110 */ 7111 ssize_t cfg80211_defragment_element(const struct element *elem, const u8 *ies, 7112 size_t ieslen, u8 *data, size_t data_len, 7113 u8 frag_id); 7114 7115 /** 7116 * cfg80211_send_layer2_update - send layer 2 update frame 7117 * 7118 * @dev: network device 7119 * @addr: STA MAC address 7120 * 7121 * Wireless drivers can use this function to update forwarding tables in bridge 7122 * devices upon STA association. 7123 */ 7124 void cfg80211_send_layer2_update(struct net_device *dev, const u8 *addr); 7125 7126 /** 7127 * DOC: Regulatory enforcement infrastructure 7128 * 7129 * TODO 7130 */ 7131 7132 /** 7133 * regulatory_hint - driver hint to the wireless core a regulatory domain 7134 * @wiphy: the wireless device giving the hint (used only for reporting 7135 * conflicts) 7136 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 7137 * should be in. If @rd is set this should be NULL. Note that if you 7138 * set this to NULL you should still set rd->alpha2 to some accepted 7139 * alpha2. 7140 * 7141 * Wireless drivers can use this function to hint to the wireless core 7142 * what it believes should be the current regulatory domain by 7143 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 7144 * domain should be in or by providing a completely build regulatory domain. 7145 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 7146 * for a regulatory domain structure for the respective country. 7147 * 7148 * The wiphy must have been registered to cfg80211 prior to this call. 7149 * For cfg80211 drivers this means you must first use wiphy_register(), 7150 * for mac80211 drivers you must first use ieee80211_register_hw(). 7151 * 7152 * Drivers should check the return value, its possible you can get 7153 * an -ENOMEM. 7154 * 7155 * Return: 0 on success. -ENOMEM. 7156 */ 7157 int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 7158 7159 /** 7160 * regulatory_set_wiphy_regd - set regdom info for self managed drivers 7161 * @wiphy: the wireless device we want to process the regulatory domain on 7162 * @rd: the regulatory domain information to use for this wiphy 7163 * 7164 * Set the regulatory domain information for self-managed wiphys, only they 7165 * may use this function. See %REGULATORY_WIPHY_SELF_MANAGED for more 7166 * information. 7167 * 7168 * Return: 0 on success. -EINVAL, -EPERM 7169 */ 7170 int regulatory_set_wiphy_regd(struct wiphy *wiphy, 7171 struct ieee80211_regdomain *rd); 7172 7173 /** 7174 * regulatory_set_wiphy_regd_sync - set regdom for self-managed drivers 7175 * @wiphy: the wireless device we want to process the regulatory domain on 7176 * @rd: the regulatory domain information to use for this wiphy 7177 * 7178 * This functions requires the RTNL and the wiphy mutex to be held and 7179 * applies the new regdomain synchronously to this wiphy. For more details 7180 * see regulatory_set_wiphy_regd(). 7181 * 7182 * Return: 0 on success. -EINVAL, -EPERM 7183 */ 7184 int regulatory_set_wiphy_regd_sync(struct wiphy *wiphy, 7185 struct ieee80211_regdomain *rd); 7186 7187 /** 7188 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 7189 * @wiphy: the wireless device we want to process the regulatory domain on 7190 * @regd: the custom regulatory domain to use for this wiphy 7191 * 7192 * Drivers can sometimes have custom regulatory domains which do not apply 7193 * to a specific country. Drivers can use this to apply such custom regulatory 7194 * domains. This routine must be called prior to wiphy registration. The 7195 * custom regulatory domain will be trusted completely and as such previous 7196 * default channel settings will be disregarded. If no rule is found for a 7197 * channel on the regulatory domain the channel will be disabled. 7198 * Drivers using this for a wiphy should also set the wiphy flag 7199 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy 7200 * that called this helper. 7201 */ 7202 void wiphy_apply_custom_regulatory(struct wiphy *wiphy, 7203 const struct ieee80211_regdomain *regd); 7204 7205 /** 7206 * freq_reg_info - get regulatory information for the given frequency 7207 * @wiphy: the wiphy for which we want to process this rule for 7208 * @center_freq: Frequency in KHz for which we want regulatory information for 7209 * 7210 * Use this function to get the regulatory rule for a specific frequency on 7211 * a given wireless device. If the device has a specific regulatory domain 7212 * it wants to follow we respect that unless a country IE has been received 7213 * and processed already. 7214 * 7215 * Return: A valid pointer, or, when an error occurs, for example if no rule 7216 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to 7217 * check and PTR_ERR() to obtain the numeric return value. The numeric return 7218 * value will be -ERANGE if we determine the given center_freq does not even 7219 * have a regulatory rule for a frequency range in the center_freq's band. 7220 * See freq_in_rule_band() for our current definition of a band -- this is 7221 * purely subjective and right now it's 802.11 specific. 7222 */ 7223 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, 7224 u32 center_freq); 7225 7226 /** 7227 * reg_initiator_name - map regulatory request initiator enum to name 7228 * @initiator: the regulatory request initiator 7229 * 7230 * You can use this to map the regulatory request initiator enum to a 7231 * proper string representation. 7232 * 7233 * Return: pointer to string representation of the initiator 7234 */ 7235 const char *reg_initiator_name(enum nl80211_reg_initiator initiator); 7236 7237 /** 7238 * regulatory_pre_cac_allowed - check if pre-CAC allowed in the current regdom 7239 * @wiphy: wiphy for which pre-CAC capability is checked. 7240 * 7241 * Pre-CAC is allowed only in some regdomains (notable ETSI). 7242 * 7243 * Return: %true if allowed, %false otherwise 7244 */ 7245 bool regulatory_pre_cac_allowed(struct wiphy *wiphy); 7246 7247 /** 7248 * DOC: Internal regulatory db functions 7249 * 7250 */ 7251 7252 /** 7253 * reg_query_regdb_wmm - Query internal regulatory db for wmm rule 7254 * Regulatory self-managed driver can use it to proactively 7255 * 7256 * @alpha2: the ISO/IEC 3166 alpha2 wmm rule to be queried. 7257 * @freq: the frequency (in MHz) to be queried. 7258 * @rule: pointer to store the wmm rule from the regulatory db. 7259 * 7260 * Self-managed wireless drivers can use this function to query 7261 * the internal regulatory database to check whether the given 7262 * ISO/IEC 3166 alpha2 country and freq have wmm rule limitations. 7263 * 7264 * Drivers should check the return value, its possible you can get 7265 * an -ENODATA. 7266 * 7267 * Return: 0 on success. -ENODATA. 7268 */ 7269 int reg_query_regdb_wmm(char *alpha2, int freq, 7270 struct ieee80211_reg_rule *rule); 7271 7272 /* 7273 * callbacks for asynchronous cfg80211 methods, notification 7274 * functions and BSS handling helpers 7275 */ 7276 7277 /** 7278 * cfg80211_scan_done - notify that scan finished 7279 * 7280 * @request: the corresponding scan request 7281 * @info: information about the completed scan 7282 */ 7283 void cfg80211_scan_done(struct cfg80211_scan_request *request, 7284 struct cfg80211_scan_info *info); 7285 7286 /** 7287 * cfg80211_sched_scan_results - notify that new scan results are available 7288 * 7289 * @wiphy: the wiphy which got scheduled scan results 7290 * @reqid: identifier for the related scheduled scan request 7291 */ 7292 void cfg80211_sched_scan_results(struct wiphy *wiphy, u64 reqid); 7293 7294 /** 7295 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 7296 * 7297 * @wiphy: the wiphy on which the scheduled scan stopped 7298 * @reqid: identifier for the related scheduled scan request 7299 * 7300 * The driver can call this function to inform cfg80211 that the 7301 * scheduled scan had to be stopped, for whatever reason. The driver 7302 * is then called back via the sched_scan_stop operation when done. 7303 */ 7304 void cfg80211_sched_scan_stopped(struct wiphy *wiphy, u64 reqid); 7305 7306 /** 7307 * cfg80211_sched_scan_stopped_locked - notify that the scheduled scan has stopped 7308 * 7309 * @wiphy: the wiphy on which the scheduled scan stopped 7310 * @reqid: identifier for the related scheduled scan request 7311 * 7312 * The driver can call this function to inform cfg80211 that the 7313 * scheduled scan had to be stopped, for whatever reason. The driver 7314 * is then called back via the sched_scan_stop operation when done. 7315 * This function should be called with the wiphy mutex held. 7316 */ 7317 void cfg80211_sched_scan_stopped_locked(struct wiphy *wiphy, u64 reqid); 7318 7319 /** 7320 * cfg80211_inform_bss_frame_data - inform cfg80211 of a received BSS frame 7321 * @wiphy: the wiphy reporting the BSS 7322 * @data: the BSS metadata 7323 * @mgmt: the management frame (probe response or beacon) 7324 * @len: length of the management frame 7325 * @gfp: context flags 7326 * 7327 * This informs cfg80211 that BSS information was found and 7328 * the BSS should be updated/added. 7329 * 7330 * Return: A referenced struct, must be released with cfg80211_put_bss()! 7331 * Or %NULL on error. 7332 */ 7333 struct cfg80211_bss * __must_check 7334 cfg80211_inform_bss_frame_data(struct wiphy *wiphy, 7335 struct cfg80211_inform_bss *data, 7336 struct ieee80211_mgmt *mgmt, size_t len, 7337 gfp_t gfp); 7338 7339 static inline struct cfg80211_bss * __must_check 7340 cfg80211_inform_bss_frame(struct wiphy *wiphy, 7341 struct ieee80211_channel *rx_channel, 7342 struct ieee80211_mgmt *mgmt, size_t len, 7343 s32 signal, gfp_t gfp) 7344 { 7345 struct cfg80211_inform_bss data = { 7346 .chan = rx_channel, 7347 .signal = signal, 7348 }; 7349 7350 return cfg80211_inform_bss_frame_data(wiphy, &data, mgmt, len, gfp); 7351 } 7352 7353 /** 7354 * cfg80211_gen_new_bssid - generate a nontransmitted BSSID for multi-BSSID 7355 * @bssid: transmitter BSSID 7356 * @max_bssid: max BSSID indicator, taken from Multiple BSSID element 7357 * @mbssid_index: BSSID index, taken from Multiple BSSID index element 7358 * @new_bssid: calculated nontransmitted BSSID 7359 */ 7360 static inline void cfg80211_gen_new_bssid(const u8 *bssid, u8 max_bssid, 7361 u8 mbssid_index, u8 *new_bssid) 7362 { 7363 u64 bssid_u64 = ether_addr_to_u64(bssid); 7364 u64 mask = GENMASK_ULL(max_bssid - 1, 0); 7365 u64 new_bssid_u64; 7366 7367 new_bssid_u64 = bssid_u64 & ~mask; 7368 7369 new_bssid_u64 |= ((bssid_u64 & mask) + mbssid_index) & mask; 7370 7371 u64_to_ether_addr(new_bssid_u64, new_bssid); 7372 } 7373 7374 /** 7375 * cfg80211_is_element_inherited - returns if element ID should be inherited 7376 * @element: element to check 7377 * @non_inherit_element: non inheritance element 7378 * 7379 * Return: %true if should be inherited, %false otherwise 7380 */ 7381 bool cfg80211_is_element_inherited(const struct element *element, 7382 const struct element *non_inherit_element); 7383 7384 /** 7385 * cfg80211_merge_profile - merges a MBSSID profile if it is split between IEs 7386 * @ie: ies 7387 * @ielen: length of IEs 7388 * @mbssid_elem: current MBSSID element 7389 * @sub_elem: current MBSSID subelement (profile) 7390 * @merged_ie: location of the merged profile 7391 * @max_copy_len: max merged profile length 7392 * 7393 * Return: the number of bytes merged 7394 */ 7395 size_t cfg80211_merge_profile(const u8 *ie, size_t ielen, 7396 const struct element *mbssid_elem, 7397 const struct element *sub_elem, 7398 u8 *merged_ie, size_t max_copy_len); 7399 7400 /** 7401 * enum cfg80211_bss_frame_type - frame type that the BSS data came from 7402 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is 7403 * from a beacon or probe response 7404 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon 7405 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response 7406 * @CFG80211_BSS_FTYPE_S1G_BEACON: data comes from an S1G beacon 7407 */ 7408 enum cfg80211_bss_frame_type { 7409 CFG80211_BSS_FTYPE_UNKNOWN, 7410 CFG80211_BSS_FTYPE_BEACON, 7411 CFG80211_BSS_FTYPE_PRESP, 7412 CFG80211_BSS_FTYPE_S1G_BEACON, 7413 }; 7414 7415 /** 7416 * cfg80211_get_ies_channel_number - returns the channel number from ies 7417 * @ie: IEs 7418 * @ielen: length of IEs 7419 * @band: enum nl80211_band of the channel 7420 * 7421 * Return: the channel number, or -1 if none could be determined. 7422 */ 7423 int cfg80211_get_ies_channel_number(const u8 *ie, size_t ielen, 7424 enum nl80211_band band); 7425 7426 /** 7427 * cfg80211_ssid_eq - compare two SSIDs 7428 * @a: first SSID 7429 * @b: second SSID 7430 * 7431 * Return: %true if SSIDs are equal, %false otherwise. 7432 */ 7433 static inline bool 7434 cfg80211_ssid_eq(struct cfg80211_ssid *a, struct cfg80211_ssid *b) 7435 { 7436 if (WARN_ON(!a || !b)) 7437 return false; 7438 if (a->ssid_len != b->ssid_len) 7439 return false; 7440 return memcmp(a->ssid, b->ssid, a->ssid_len) ? false : true; 7441 } 7442 7443 /** 7444 * cfg80211_inform_bss_data - inform cfg80211 of a new BSS 7445 * 7446 * @wiphy: the wiphy reporting the BSS 7447 * @data: the BSS metadata 7448 * @ftype: frame type (if known) 7449 * @bssid: the BSSID of the BSS 7450 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) 7451 * @capability: the capability field sent by the peer 7452 * @beacon_interval: the beacon interval announced by the peer 7453 * @ie: additional IEs sent by the peer 7454 * @ielen: length of the additional IEs 7455 * @gfp: context flags 7456 * 7457 * This informs cfg80211 that BSS information was found and 7458 * the BSS should be updated/added. 7459 * 7460 * Return: A referenced struct, must be released with cfg80211_put_bss()! 7461 * Or %NULL on error. 7462 */ 7463 struct cfg80211_bss * __must_check 7464 cfg80211_inform_bss_data(struct wiphy *wiphy, 7465 struct cfg80211_inform_bss *data, 7466 enum cfg80211_bss_frame_type ftype, 7467 const u8 *bssid, u64 tsf, u16 capability, 7468 u16 beacon_interval, const u8 *ie, size_t ielen, 7469 gfp_t gfp); 7470 7471 static inline struct cfg80211_bss * __must_check 7472 cfg80211_inform_bss(struct wiphy *wiphy, 7473 struct ieee80211_channel *rx_channel, 7474 enum cfg80211_bss_frame_type ftype, 7475 const u8 *bssid, u64 tsf, u16 capability, 7476 u16 beacon_interval, const u8 *ie, size_t ielen, 7477 s32 signal, gfp_t gfp) 7478 { 7479 struct cfg80211_inform_bss data = { 7480 .chan = rx_channel, 7481 .signal = signal, 7482 }; 7483 7484 return cfg80211_inform_bss_data(wiphy, &data, ftype, bssid, tsf, 7485 capability, beacon_interval, ie, ielen, 7486 gfp); 7487 } 7488 7489 /** 7490 * __cfg80211_get_bss - get a BSS reference 7491 * @wiphy: the wiphy this BSS struct belongs to 7492 * @channel: the channel to search on (or %NULL) 7493 * @bssid: the desired BSSID (or %NULL) 7494 * @ssid: the desired SSID (or %NULL) 7495 * @ssid_len: length of the SSID (or 0) 7496 * @bss_type: type of BSS, see &enum ieee80211_bss_type 7497 * @privacy: privacy filter, see &enum ieee80211_privacy 7498 * @use_for: indicates which use is intended 7499 * 7500 * Return: Reference-counted BSS on success. %NULL on error. 7501 */ 7502 struct cfg80211_bss *__cfg80211_get_bss(struct wiphy *wiphy, 7503 struct ieee80211_channel *channel, 7504 const u8 *bssid, 7505 const u8 *ssid, size_t ssid_len, 7506 enum ieee80211_bss_type bss_type, 7507 enum ieee80211_privacy privacy, 7508 u32 use_for); 7509 7510 /** 7511 * cfg80211_get_bss - get a BSS reference 7512 * @wiphy: the wiphy this BSS struct belongs to 7513 * @channel: the channel to search on (or %NULL) 7514 * @bssid: the desired BSSID (or %NULL) 7515 * @ssid: the desired SSID (or %NULL) 7516 * @ssid_len: length of the SSID (or 0) 7517 * @bss_type: type of BSS, see &enum ieee80211_bss_type 7518 * @privacy: privacy filter, see &enum ieee80211_privacy 7519 * 7520 * This version implies regular usage, %NL80211_BSS_USE_FOR_NORMAL. 7521 * 7522 * Return: Reference-counted BSS on success. %NULL on error. 7523 */ 7524 static inline struct cfg80211_bss * 7525 cfg80211_get_bss(struct wiphy *wiphy, struct ieee80211_channel *channel, 7526 const u8 *bssid, const u8 *ssid, size_t ssid_len, 7527 enum ieee80211_bss_type bss_type, 7528 enum ieee80211_privacy privacy) 7529 { 7530 return __cfg80211_get_bss(wiphy, channel, bssid, ssid, ssid_len, 7531 bss_type, privacy, 7532 NL80211_BSS_USE_FOR_NORMAL); 7533 } 7534 7535 static inline struct cfg80211_bss * 7536 cfg80211_get_ibss(struct wiphy *wiphy, 7537 struct ieee80211_channel *channel, 7538 const u8 *ssid, size_t ssid_len) 7539 { 7540 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 7541 IEEE80211_BSS_TYPE_IBSS, 7542 IEEE80211_PRIVACY_ANY); 7543 } 7544 7545 /** 7546 * cfg80211_ref_bss - reference BSS struct 7547 * @wiphy: the wiphy this BSS struct belongs to 7548 * @bss: the BSS struct to reference 7549 * 7550 * Increments the refcount of the given BSS struct. 7551 */ 7552 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 7553 7554 /** 7555 * cfg80211_put_bss - unref BSS struct 7556 * @wiphy: the wiphy this BSS struct belongs to 7557 * @bss: the BSS struct 7558 * 7559 * Decrements the refcount of the given BSS struct. 7560 */ 7561 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 7562 7563 /** 7564 * cfg80211_unlink_bss - unlink BSS from internal data structures 7565 * @wiphy: the wiphy 7566 * @bss: the bss to remove 7567 * 7568 * This function removes the given BSS from the internal data structures 7569 * thereby making it no longer show up in scan results etc. Use this 7570 * function when you detect a BSS is gone. Normally BSSes will also time 7571 * out, so it is not necessary to use this function at all. 7572 */ 7573 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 7574 7575 /** 7576 * cfg80211_bss_iter - iterate all BSS entries 7577 * 7578 * This function iterates over the BSS entries associated with the given wiphy 7579 * and calls the callback for the iterated BSS. The iterator function is not 7580 * allowed to call functions that might modify the internal state of the BSS DB. 7581 * 7582 * @wiphy: the wiphy 7583 * @chandef: if given, the iterator function will be called only if the channel 7584 * of the currently iterated BSS is a subset of the given channel. 7585 * @iter: the iterator function to call 7586 * @iter_data: an argument to the iterator function 7587 */ 7588 void cfg80211_bss_iter(struct wiphy *wiphy, 7589 struct cfg80211_chan_def *chandef, 7590 void (*iter)(struct wiphy *wiphy, 7591 struct cfg80211_bss *bss, 7592 void *data), 7593 void *iter_data); 7594 7595 /** 7596 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame 7597 * @dev: network device 7598 * @buf: authentication frame (header + body) 7599 * @len: length of the frame data 7600 * 7601 * This function is called whenever an authentication, disassociation or 7602 * deauthentication frame has been received and processed in station mode. 7603 * After being asked to authenticate via cfg80211_ops::auth() the driver must 7604 * call either this function or cfg80211_auth_timeout(). 7605 * After being asked to associate via cfg80211_ops::assoc() the driver must 7606 * call either this function or cfg80211_auth_timeout(). 7607 * While connected, the driver must calls this for received and processed 7608 * disassociation and deauthentication frames. If the frame couldn't be used 7609 * because it was unprotected, the driver must call the function 7610 * cfg80211_rx_unprot_mlme_mgmt() instead. 7611 * 7612 * This function may sleep. The caller must hold the corresponding wdev's mutex. 7613 */ 7614 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); 7615 7616 /** 7617 * cfg80211_auth_timeout - notification of timed out authentication 7618 * @dev: network device 7619 * @addr: The MAC address of the device with which the authentication timed out 7620 * 7621 * This function may sleep. The caller must hold the corresponding wdev's 7622 * mutex. 7623 */ 7624 void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr); 7625 7626 /** 7627 * struct cfg80211_rx_assoc_resp_data - association response data 7628 * @buf: (Re)Association Response frame (header + body) 7629 * @len: length of the frame data 7630 * @uapsd_queues: bitmap of queues configured for uapsd. Same format 7631 * as the AC bitmap in the QoS info field 7632 * @req_ies: information elements from the (Re)Association Request frame 7633 * @req_ies_len: length of req_ies data 7634 * @ap_mld_addr: AP MLD address (in case of MLO) 7635 * @links: per-link information indexed by link ID, use links[0] for 7636 * non-MLO connections 7637 * @links.bss: the BSS that association was requested with, ownership of the 7638 * pointer moves to cfg80211 in the call to cfg80211_rx_assoc_resp() 7639 * @links.status: Set this (along with a BSS pointer) for links that 7640 * were rejected by the AP. 7641 */ 7642 struct cfg80211_rx_assoc_resp_data { 7643 const u8 *buf; 7644 size_t len; 7645 const u8 *req_ies; 7646 size_t req_ies_len; 7647 int uapsd_queues; 7648 const u8 *ap_mld_addr; 7649 struct { 7650 u8 addr[ETH_ALEN] __aligned(2); 7651 struct cfg80211_bss *bss; 7652 u16 status; 7653 } links[IEEE80211_MLD_MAX_NUM_LINKS]; 7654 }; 7655 7656 /** 7657 * cfg80211_rx_assoc_resp - notification of processed association response 7658 * @dev: network device 7659 * @data: association response data, &struct cfg80211_rx_assoc_resp_data 7660 * 7661 * After being asked to associate via cfg80211_ops::assoc() the driver must 7662 * call either this function or cfg80211_auth_timeout(). 7663 * 7664 * This function may sleep. The caller must hold the corresponding wdev's mutex. 7665 */ 7666 void cfg80211_rx_assoc_resp(struct net_device *dev, 7667 const struct cfg80211_rx_assoc_resp_data *data); 7668 7669 /** 7670 * struct cfg80211_assoc_failure - association failure data 7671 * @ap_mld_addr: AP MLD address, or %NULL 7672 * @bss: list of BSSes, must use entry 0 for non-MLO connections 7673 * (@ap_mld_addr is %NULL) 7674 * @timeout: indicates the association failed due to timeout, otherwise 7675 * the association was abandoned for a reason reported through some 7676 * other API (e.g. deauth RX) 7677 */ 7678 struct cfg80211_assoc_failure { 7679 const u8 *ap_mld_addr; 7680 struct cfg80211_bss *bss[IEEE80211_MLD_MAX_NUM_LINKS]; 7681 bool timeout; 7682 }; 7683 7684 /** 7685 * cfg80211_assoc_failure - notification of association failure 7686 * @dev: network device 7687 * @data: data describing the association failure 7688 * 7689 * This function may sleep. The caller must hold the corresponding wdev's mutex. 7690 */ 7691 void cfg80211_assoc_failure(struct net_device *dev, 7692 struct cfg80211_assoc_failure *data); 7693 7694 /** 7695 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame 7696 * @dev: network device 7697 * @buf: 802.11 frame (header + body) 7698 * @len: length of the frame data 7699 * @reconnect: immediate reconnect is desired (include the nl80211 attribute) 7700 * 7701 * This function is called whenever deauthentication has been processed in 7702 * station mode. This includes both received deauthentication frames and 7703 * locally generated ones. This function may sleep. The caller must hold the 7704 * corresponding wdev's mutex. 7705 */ 7706 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len, 7707 bool reconnect); 7708 7709 /** 7710 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame 7711 * @dev: network device 7712 * @buf: received management frame (header + body) 7713 * @len: length of the frame data 7714 * 7715 * This function is called whenever a received deauthentication or dissassoc 7716 * frame has been dropped in station mode because of MFP being used but the 7717 * frame was not protected. This is also used to notify reception of a Beacon 7718 * frame that was dropped because it did not include a valid MME MIC while 7719 * beacon protection was enabled (BIGTK configured in station mode). 7720 * 7721 * This function may sleep. 7722 */ 7723 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, 7724 const u8 *buf, size_t len); 7725 7726 /** 7727 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 7728 * @dev: network device 7729 * @addr: The source MAC address of the frame 7730 * @key_type: The key type that the received frame used 7731 * @key_id: Key identifier (0..3). Can be -1 if missing. 7732 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 7733 * @gfp: allocation flags 7734 * 7735 * This function is called whenever the local MAC detects a MIC failure in a 7736 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 7737 * primitive. 7738 */ 7739 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 7740 enum nl80211_key_type key_type, int key_id, 7741 const u8 *tsc, gfp_t gfp); 7742 7743 /** 7744 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 7745 * 7746 * @dev: network device 7747 * @bssid: the BSSID of the IBSS joined 7748 * @channel: the channel of the IBSS joined 7749 * @gfp: allocation flags 7750 * 7751 * This function notifies cfg80211 that the device joined an IBSS or 7752 * switched to a different BSSID. Before this function can be called, 7753 * either a beacon has to have been received from the IBSS, or one of 7754 * the cfg80211_inform_bss{,_frame} functions must have been called 7755 * with the locally generated beacon -- this guarantees that there is 7756 * always a scan result for this IBSS. cfg80211 will handle the rest. 7757 */ 7758 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, 7759 struct ieee80211_channel *channel, gfp_t gfp); 7760 7761 /** 7762 * cfg80211_notify_new_peer_candidate - notify cfg80211 of a new mesh peer 7763 * candidate 7764 * 7765 * @dev: network device 7766 * @macaddr: the MAC address of the new candidate 7767 * @ie: information elements advertised by the peer candidate 7768 * @ie_len: length of the information elements buffer 7769 * @sig_dbm: signal level in dBm 7770 * @gfp: allocation flags 7771 * 7772 * This function notifies cfg80211 that the mesh peer candidate has been 7773 * detected, most likely via a beacon or, less likely, via a probe response. 7774 * cfg80211 then sends a notification to userspace. 7775 */ 7776 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 7777 const u8 *macaddr, const u8 *ie, u8 ie_len, 7778 int sig_dbm, gfp_t gfp); 7779 7780 /** 7781 * DOC: RFkill integration 7782 * 7783 * RFkill integration in cfg80211 is almost invisible to drivers, 7784 * as cfg80211 automatically registers an rfkill instance for each 7785 * wireless device it knows about. Soft kill is also translated 7786 * into disconnecting and turning all interfaces off. Drivers are 7787 * expected to turn off the device when all interfaces are down. 7788 * 7789 * However, devices may have a hard RFkill line, in which case they 7790 * also need to interact with the rfkill subsystem, via cfg80211. 7791 * They can do this with a few helper functions documented here. 7792 */ 7793 7794 /** 7795 * wiphy_rfkill_set_hw_state_reason - notify cfg80211 about hw block state 7796 * @wiphy: the wiphy 7797 * @blocked: block status 7798 * @reason: one of reasons in &enum rfkill_hard_block_reasons 7799 */ 7800 void wiphy_rfkill_set_hw_state_reason(struct wiphy *wiphy, bool blocked, 7801 enum rfkill_hard_block_reasons reason); 7802 7803 static inline void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked) 7804 { 7805 wiphy_rfkill_set_hw_state_reason(wiphy, blocked, 7806 RFKILL_HARD_BLOCK_SIGNAL); 7807 } 7808 7809 /** 7810 * wiphy_rfkill_start_polling - start polling rfkill 7811 * @wiphy: the wiphy 7812 */ 7813 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 7814 7815 /** 7816 * wiphy_rfkill_stop_polling - stop polling rfkill 7817 * @wiphy: the wiphy 7818 */ 7819 static inline void wiphy_rfkill_stop_polling(struct wiphy *wiphy) 7820 { 7821 rfkill_pause_polling(wiphy->rfkill); 7822 } 7823 7824 /** 7825 * DOC: Vendor commands 7826 * 7827 * Occasionally, there are special protocol or firmware features that 7828 * can't be implemented very openly. For this and similar cases, the 7829 * vendor command functionality allows implementing the features with 7830 * (typically closed-source) userspace and firmware, using nl80211 as 7831 * the configuration mechanism. 7832 * 7833 * A driver supporting vendor commands must register them as an array 7834 * in struct wiphy, with handlers for each one. Each command has an 7835 * OUI and sub command ID to identify it. 7836 * 7837 * Note that this feature should not be (ab)used to implement protocol 7838 * features that could openly be shared across drivers. In particular, 7839 * it must never be required to use vendor commands to implement any 7840 * "normal" functionality that higher-level userspace like connection 7841 * managers etc. need. 7842 */ 7843 7844 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, 7845 enum nl80211_commands cmd, 7846 enum nl80211_attrs attr, 7847 int approxlen); 7848 7849 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, 7850 struct wireless_dev *wdev, 7851 enum nl80211_commands cmd, 7852 enum nl80211_attrs attr, 7853 unsigned int portid, 7854 int vendor_event_idx, 7855 int approxlen, gfp_t gfp); 7856 7857 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp); 7858 7859 /** 7860 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply 7861 * @wiphy: the wiphy 7862 * @approxlen: an upper bound of the length of the data that will 7863 * be put into the skb 7864 * 7865 * This function allocates and pre-fills an skb for a reply to 7866 * a vendor command. Since it is intended for a reply, calling 7867 * it outside of a vendor command's doit() operation is invalid. 7868 * 7869 * The returned skb is pre-filled with some identifying data in 7870 * a way that any data that is put into the skb (with skb_put(), 7871 * nla_put() or similar) will end up being within the 7872 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done 7873 * with the skb is adding data for the corresponding userspace tool 7874 * which can then read that data out of the vendor data attribute. 7875 * You must not modify the skb in any other way. 7876 * 7877 * When done, call cfg80211_vendor_cmd_reply() with the skb and return 7878 * its error code as the result of the doit() operation. 7879 * 7880 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 7881 */ 7882 static inline struct sk_buff * 7883 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen) 7884 { 7885 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR, 7886 NL80211_ATTR_VENDOR_DATA, approxlen); 7887 } 7888 7889 /** 7890 * cfg80211_vendor_cmd_reply - send the reply skb 7891 * @skb: The skb, must have been allocated with 7892 * cfg80211_vendor_cmd_alloc_reply_skb() 7893 * 7894 * Since calling this function will usually be the last thing 7895 * before returning from the vendor command doit() you should 7896 * return the error code. Note that this function consumes the 7897 * skb regardless of the return value. 7898 * 7899 * Return: An error code or 0 on success. 7900 */ 7901 int cfg80211_vendor_cmd_reply(struct sk_buff *skb); 7902 7903 /** 7904 * cfg80211_vendor_cmd_get_sender - get the current sender netlink ID 7905 * @wiphy: the wiphy 7906 * 7907 * Return: the current netlink port ID in a vendor command handler. 7908 * 7909 * Context: May only be called from a vendor command handler 7910 */ 7911 unsigned int cfg80211_vendor_cmd_get_sender(struct wiphy *wiphy); 7912 7913 /** 7914 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb 7915 * @wiphy: the wiphy 7916 * @wdev: the wireless device 7917 * @event_idx: index of the vendor event in the wiphy's vendor_events 7918 * @approxlen: an upper bound of the length of the data that will 7919 * be put into the skb 7920 * @gfp: allocation flags 7921 * 7922 * This function allocates and pre-fills an skb for an event on the 7923 * vendor-specific multicast group. 7924 * 7925 * If wdev != NULL, both the ifindex and identifier of the specified 7926 * wireless device are added to the event message before the vendor data 7927 * attribute. 7928 * 7929 * When done filling the skb, call cfg80211_vendor_event() with the 7930 * skb to send the event. 7931 * 7932 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 7933 */ 7934 static inline struct sk_buff * 7935 cfg80211_vendor_event_alloc(struct wiphy *wiphy, struct wireless_dev *wdev, 7936 int approxlen, int event_idx, gfp_t gfp) 7937 { 7938 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR, 7939 NL80211_ATTR_VENDOR_DATA, 7940 0, event_idx, approxlen, gfp); 7941 } 7942 7943 /** 7944 * cfg80211_vendor_event_alloc_ucast - alloc unicast vendor-specific event skb 7945 * @wiphy: the wiphy 7946 * @wdev: the wireless device 7947 * @event_idx: index of the vendor event in the wiphy's vendor_events 7948 * @portid: port ID of the receiver 7949 * @approxlen: an upper bound of the length of the data that will 7950 * be put into the skb 7951 * @gfp: allocation flags 7952 * 7953 * This function allocates and pre-fills an skb for an event to send to 7954 * a specific (userland) socket. This socket would previously have been 7955 * obtained by cfg80211_vendor_cmd_get_sender(), and the caller MUST take 7956 * care to register a netlink notifier to see when the socket closes. 7957 * 7958 * If wdev != NULL, both the ifindex and identifier of the specified 7959 * wireless device are added to the event message before the vendor data 7960 * attribute. 7961 * 7962 * When done filling the skb, call cfg80211_vendor_event() with the 7963 * skb to send the event. 7964 * 7965 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 7966 */ 7967 static inline struct sk_buff * 7968 cfg80211_vendor_event_alloc_ucast(struct wiphy *wiphy, 7969 struct wireless_dev *wdev, 7970 unsigned int portid, int approxlen, 7971 int event_idx, gfp_t gfp) 7972 { 7973 return __cfg80211_alloc_event_skb(wiphy, wdev, NL80211_CMD_VENDOR, 7974 NL80211_ATTR_VENDOR_DATA, 7975 portid, event_idx, approxlen, gfp); 7976 } 7977 7978 /** 7979 * cfg80211_vendor_event - send the event 7980 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc() 7981 * @gfp: allocation flags 7982 * 7983 * This function sends the given @skb, which must have been allocated 7984 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it. 7985 */ 7986 static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp) 7987 { 7988 __cfg80211_send_event_skb(skb, gfp); 7989 } 7990 7991 #ifdef CONFIG_NL80211_TESTMODE 7992 /** 7993 * DOC: Test mode 7994 * 7995 * Test mode is a set of utility functions to allow drivers to 7996 * interact with driver-specific tools to aid, for instance, 7997 * factory programming. 7998 * 7999 * This chapter describes how drivers interact with it. For more 8000 * information see the nl80211 book's chapter on it. 8001 */ 8002 8003 /** 8004 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 8005 * @wiphy: the wiphy 8006 * @approxlen: an upper bound of the length of the data that will 8007 * be put into the skb 8008 * 8009 * This function allocates and pre-fills an skb for a reply to 8010 * the testmode command. Since it is intended for a reply, calling 8011 * it outside of the @testmode_cmd operation is invalid. 8012 * 8013 * The returned skb is pre-filled with the wiphy index and set up in 8014 * a way that any data that is put into the skb (with skb_put(), 8015 * nla_put() or similar) will end up being within the 8016 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done 8017 * with the skb is adding data for the corresponding userspace tool 8018 * which can then read that data out of the testdata attribute. You 8019 * must not modify the skb in any other way. 8020 * 8021 * When done, call cfg80211_testmode_reply() with the skb and return 8022 * its error code as the result of the @testmode_cmd operation. 8023 * 8024 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 8025 */ 8026 static inline struct sk_buff * 8027 cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen) 8028 { 8029 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE, 8030 NL80211_ATTR_TESTDATA, approxlen); 8031 } 8032 8033 /** 8034 * cfg80211_testmode_reply - send the reply skb 8035 * @skb: The skb, must have been allocated with 8036 * cfg80211_testmode_alloc_reply_skb() 8037 * 8038 * Since calling this function will usually be the last thing 8039 * before returning from the @testmode_cmd you should return 8040 * the error code. Note that this function consumes the skb 8041 * regardless of the return value. 8042 * 8043 * Return: An error code or 0 on success. 8044 */ 8045 static inline int cfg80211_testmode_reply(struct sk_buff *skb) 8046 { 8047 return cfg80211_vendor_cmd_reply(skb); 8048 } 8049 8050 /** 8051 * cfg80211_testmode_alloc_event_skb - allocate testmode event 8052 * @wiphy: the wiphy 8053 * @approxlen: an upper bound of the length of the data that will 8054 * be put into the skb 8055 * @gfp: allocation flags 8056 * 8057 * This function allocates and pre-fills an skb for an event on the 8058 * testmode multicast group. 8059 * 8060 * The returned skb is set up in the same way as with 8061 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As 8062 * there, you should simply add data to it that will then end up in the 8063 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb 8064 * in any other way. 8065 * 8066 * When done filling the skb, call cfg80211_testmode_event() with the 8067 * skb to send the event. 8068 * 8069 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 8070 */ 8071 static inline struct sk_buff * 8072 cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp) 8073 { 8074 return __cfg80211_alloc_event_skb(wiphy, NULL, NL80211_CMD_TESTMODE, 8075 NL80211_ATTR_TESTDATA, 0, -1, 8076 approxlen, gfp); 8077 } 8078 8079 /** 8080 * cfg80211_testmode_event - send the event 8081 * @skb: The skb, must have been allocated with 8082 * cfg80211_testmode_alloc_event_skb() 8083 * @gfp: allocation flags 8084 * 8085 * This function sends the given @skb, which must have been allocated 8086 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 8087 * consumes it. 8088 */ 8089 static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) 8090 { 8091 __cfg80211_send_event_skb(skb, gfp); 8092 } 8093 8094 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 8095 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 8096 #else 8097 #define CFG80211_TESTMODE_CMD(cmd) 8098 #define CFG80211_TESTMODE_DUMP(cmd) 8099 #endif 8100 8101 /** 8102 * struct cfg80211_fils_resp_params - FILS connection response params 8103 * @kek: KEK derived from a successful FILS connection (may be %NULL) 8104 * @kek_len: Length of @fils_kek in octets 8105 * @update_erp_next_seq_num: Boolean value to specify whether the value in 8106 * @erp_next_seq_num is valid. 8107 * @erp_next_seq_num: The next sequence number to use in ERP message in 8108 * FILS Authentication. This value should be specified irrespective of the 8109 * status for a FILS connection. 8110 * @pmk: A new PMK if derived from a successful FILS connection (may be %NULL). 8111 * @pmk_len: Length of @pmk in octets 8112 * @pmkid: A new PMKID if derived from a successful FILS connection or the PMKID 8113 * used for this FILS connection (may be %NULL). 8114 */ 8115 struct cfg80211_fils_resp_params { 8116 const u8 *kek; 8117 size_t kek_len; 8118 bool update_erp_next_seq_num; 8119 u16 erp_next_seq_num; 8120 const u8 *pmk; 8121 size_t pmk_len; 8122 const u8 *pmkid; 8123 }; 8124 8125 /** 8126 * struct cfg80211_connect_resp_params - Connection response params 8127 * @status: Status code, %WLAN_STATUS_SUCCESS for successful connection, use 8128 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 8129 * the real status code for failures. If this call is used to report a 8130 * failure due to a timeout (e.g., not receiving an Authentication frame 8131 * from the AP) instead of an explicit rejection by the AP, -1 is used to 8132 * indicate that this is a failure, but without a status code. 8133 * @timeout_reason is used to report the reason for the timeout in that 8134 * case. 8135 * @req_ie: Association request IEs (may be %NULL) 8136 * @req_ie_len: Association request IEs length 8137 * @resp_ie: Association response IEs (may be %NULL) 8138 * @resp_ie_len: Association response IEs length 8139 * @fils: FILS connection response parameters. 8140 * @timeout_reason: Reason for connection timeout. This is used when the 8141 * connection fails due to a timeout instead of an explicit rejection from 8142 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is 8143 * not known. This value is used only if @status < 0 to indicate that the 8144 * failure is due to a timeout and not due to explicit rejection by the AP. 8145 * This value is ignored in other cases (@status >= 0). 8146 * @valid_links: For MLO connection, BIT mask of the valid link ids. Otherwise 8147 * zero. 8148 * @ap_mld_addr: For MLO connection, MLD address of the AP. Otherwise %NULL. 8149 * @links : For MLO connection, contains link info for the valid links indicated 8150 * using @valid_links. For non-MLO connection, links[0] contains the 8151 * connected AP info. 8152 * @links.addr: For MLO connection, MAC address of the STA link. Otherwise 8153 * %NULL. 8154 * @links.bssid: For MLO connection, MAC address of the AP link. For non-MLO 8155 * connection, links[0].bssid points to the BSSID of the AP (may be %NULL). 8156 * @links.bss: For MLO connection, entry of bss to which STA link is connected. 8157 * For non-MLO connection, links[0].bss points to entry of bss to which STA 8158 * is connected. It can be obtained through cfg80211_get_bss() (may be 8159 * %NULL). It is recommended to store the bss from the connect_request and 8160 * hold a reference to it and return through this param to avoid a warning 8161 * if the bss is expired during the connection, esp. for those drivers 8162 * implementing connect op. Only one parameter among @bssid and @bss needs 8163 * to be specified. 8164 * @links.status: per-link status code, to report a status code that's not 8165 * %WLAN_STATUS_SUCCESS for a given link, it must also be in the 8166 * @valid_links bitmap and may have a BSS pointer (which is then released) 8167 */ 8168 struct cfg80211_connect_resp_params { 8169 int status; 8170 const u8 *req_ie; 8171 size_t req_ie_len; 8172 const u8 *resp_ie; 8173 size_t resp_ie_len; 8174 struct cfg80211_fils_resp_params fils; 8175 enum nl80211_timeout_reason timeout_reason; 8176 8177 const u8 *ap_mld_addr; 8178 u16 valid_links; 8179 struct { 8180 const u8 *addr; 8181 const u8 *bssid; 8182 struct cfg80211_bss *bss; 8183 u16 status; 8184 } links[IEEE80211_MLD_MAX_NUM_LINKS]; 8185 }; 8186 8187 /** 8188 * cfg80211_connect_done - notify cfg80211 of connection result 8189 * 8190 * @dev: network device 8191 * @params: connection response parameters 8192 * @gfp: allocation flags 8193 * 8194 * It should be called by the underlying driver once execution of the connection 8195 * request from connect() has been completed. This is similar to 8196 * cfg80211_connect_bss(), but takes a structure pointer for connection response 8197 * parameters. Only one of the functions among cfg80211_connect_bss(), 8198 * cfg80211_connect_result(), cfg80211_connect_timeout(), 8199 * and cfg80211_connect_done() should be called. 8200 */ 8201 void cfg80211_connect_done(struct net_device *dev, 8202 struct cfg80211_connect_resp_params *params, 8203 gfp_t gfp); 8204 8205 /** 8206 * cfg80211_connect_bss - notify cfg80211 of connection result 8207 * 8208 * @dev: network device 8209 * @bssid: the BSSID of the AP 8210 * @bss: Entry of bss to which STA got connected to, can be obtained through 8211 * cfg80211_get_bss() (may be %NULL). But it is recommended to store the 8212 * bss from the connect_request and hold a reference to it and return 8213 * through this param to avoid a warning if the bss is expired during the 8214 * connection, esp. for those drivers implementing connect op. 8215 * Only one parameter among @bssid and @bss needs to be specified. 8216 * @req_ie: association request IEs (maybe be %NULL) 8217 * @req_ie_len: association request IEs length 8218 * @resp_ie: association response IEs (may be %NULL) 8219 * @resp_ie_len: assoc response IEs length 8220 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use 8221 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 8222 * the real status code for failures. If this call is used to report a 8223 * failure due to a timeout (e.g., not receiving an Authentication frame 8224 * from the AP) instead of an explicit rejection by the AP, -1 is used to 8225 * indicate that this is a failure, but without a status code. 8226 * @timeout_reason is used to report the reason for the timeout in that 8227 * case. 8228 * @gfp: allocation flags 8229 * @timeout_reason: reason for connection timeout. This is used when the 8230 * connection fails due to a timeout instead of an explicit rejection from 8231 * the AP. %NL80211_TIMEOUT_UNSPECIFIED is used when the timeout reason is 8232 * not known. This value is used only if @status < 0 to indicate that the 8233 * failure is due to a timeout and not due to explicit rejection by the AP. 8234 * This value is ignored in other cases (@status >= 0). 8235 * 8236 * It should be called by the underlying driver once execution of the connection 8237 * request from connect() has been completed. This is similar to 8238 * cfg80211_connect_result(), but with the option of identifying the exact bss 8239 * entry for the connection. Only one of the functions among 8240 * cfg80211_connect_bss(), cfg80211_connect_result(), 8241 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called. 8242 */ 8243 static inline void 8244 cfg80211_connect_bss(struct net_device *dev, const u8 *bssid, 8245 struct cfg80211_bss *bss, const u8 *req_ie, 8246 size_t req_ie_len, const u8 *resp_ie, 8247 size_t resp_ie_len, int status, gfp_t gfp, 8248 enum nl80211_timeout_reason timeout_reason) 8249 { 8250 struct cfg80211_connect_resp_params params; 8251 8252 memset(¶ms, 0, sizeof(params)); 8253 params.status = status; 8254 params.links[0].bssid = bssid; 8255 params.links[0].bss = bss; 8256 params.req_ie = req_ie; 8257 params.req_ie_len = req_ie_len; 8258 params.resp_ie = resp_ie; 8259 params.resp_ie_len = resp_ie_len; 8260 params.timeout_reason = timeout_reason; 8261 8262 cfg80211_connect_done(dev, ¶ms, gfp); 8263 } 8264 8265 /** 8266 * cfg80211_connect_result - notify cfg80211 of connection result 8267 * 8268 * @dev: network device 8269 * @bssid: the BSSID of the AP 8270 * @req_ie: association request IEs (maybe be %NULL) 8271 * @req_ie_len: association request IEs length 8272 * @resp_ie: association response IEs (may be %NULL) 8273 * @resp_ie_len: assoc response IEs length 8274 * @status: status code, %WLAN_STATUS_SUCCESS for successful connection, use 8275 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 8276 * the real status code for failures. 8277 * @gfp: allocation flags 8278 * 8279 * It should be called by the underlying driver once execution of the connection 8280 * request from connect() has been completed. This is similar to 8281 * cfg80211_connect_bss() which allows the exact bss entry to be specified. Only 8282 * one of the functions among cfg80211_connect_bss(), cfg80211_connect_result(), 8283 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called. 8284 */ 8285 static inline void 8286 cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 8287 const u8 *req_ie, size_t req_ie_len, 8288 const u8 *resp_ie, size_t resp_ie_len, 8289 u16 status, gfp_t gfp) 8290 { 8291 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, resp_ie, 8292 resp_ie_len, status, gfp, 8293 NL80211_TIMEOUT_UNSPECIFIED); 8294 } 8295 8296 /** 8297 * cfg80211_connect_timeout - notify cfg80211 of connection timeout 8298 * 8299 * @dev: network device 8300 * @bssid: the BSSID of the AP 8301 * @req_ie: association request IEs (maybe be %NULL) 8302 * @req_ie_len: association request IEs length 8303 * @gfp: allocation flags 8304 * @timeout_reason: reason for connection timeout. 8305 * 8306 * It should be called by the underlying driver whenever connect() has failed 8307 * in a sequence where no explicit authentication/association rejection was 8308 * received from the AP. This could happen, e.g., due to not being able to send 8309 * out the Authentication or Association Request frame or timing out while 8310 * waiting for the response. Only one of the functions among 8311 * cfg80211_connect_bss(), cfg80211_connect_result(), 8312 * cfg80211_connect_timeout(), and cfg80211_connect_done() should be called. 8313 */ 8314 static inline void 8315 cfg80211_connect_timeout(struct net_device *dev, const u8 *bssid, 8316 const u8 *req_ie, size_t req_ie_len, gfp_t gfp, 8317 enum nl80211_timeout_reason timeout_reason) 8318 { 8319 cfg80211_connect_bss(dev, bssid, NULL, req_ie, req_ie_len, NULL, 0, -1, 8320 gfp, timeout_reason); 8321 } 8322 8323 /** 8324 * struct cfg80211_roam_info - driver initiated roaming information 8325 * 8326 * @req_ie: association request IEs (maybe be %NULL) 8327 * @req_ie_len: association request IEs length 8328 * @resp_ie: association response IEs (may be %NULL) 8329 * @resp_ie_len: assoc response IEs length 8330 * @fils: FILS related roaming information. 8331 * @valid_links: For MLO roaming, BIT mask of the new valid links is set. 8332 * Otherwise zero. 8333 * @ap_mld_addr: For MLO roaming, MLD address of the new AP. Otherwise %NULL. 8334 * @links : For MLO roaming, contains new link info for the valid links set in 8335 * @valid_links. For non-MLO roaming, links[0] contains the new AP info. 8336 * @links.addr: For MLO roaming, MAC address of the STA link. Otherwise %NULL. 8337 * @links.bssid: For MLO roaming, MAC address of the new AP link. For non-MLO 8338 * roaming, links[0].bssid points to the BSSID of the new AP. May be 8339 * %NULL if %links.bss is set. 8340 * @links.channel: the channel of the new AP. 8341 * @links.bss: For MLO roaming, entry of new bss to which STA link got 8342 * roamed. For non-MLO roaming, links[0].bss points to entry of bss to 8343 * which STA got roamed (may be %NULL if %links.bssid is set) 8344 */ 8345 struct cfg80211_roam_info { 8346 const u8 *req_ie; 8347 size_t req_ie_len; 8348 const u8 *resp_ie; 8349 size_t resp_ie_len; 8350 struct cfg80211_fils_resp_params fils; 8351 8352 const u8 *ap_mld_addr; 8353 u16 valid_links; 8354 struct { 8355 const u8 *addr; 8356 const u8 *bssid; 8357 struct ieee80211_channel *channel; 8358 struct cfg80211_bss *bss; 8359 } links[IEEE80211_MLD_MAX_NUM_LINKS]; 8360 }; 8361 8362 /** 8363 * cfg80211_roamed - notify cfg80211 of roaming 8364 * 8365 * @dev: network device 8366 * @info: information about the new BSS. struct &cfg80211_roam_info. 8367 * @gfp: allocation flags 8368 * 8369 * This function may be called with the driver passing either the BSSID of the 8370 * new AP or passing the bss entry to avoid a race in timeout of the bss entry. 8371 * It should be called by the underlying driver whenever it roamed from one AP 8372 * to another while connected. Drivers which have roaming implemented in 8373 * firmware should pass the bss entry to avoid a race in bss entry timeout where 8374 * the bss entry of the new AP is seen in the driver, but gets timed out by the 8375 * time it is accessed in __cfg80211_roamed() due to delay in scheduling 8376 * rdev->event_work. In case of any failures, the reference is released 8377 * either in cfg80211_roamed() or in __cfg80211_romed(), Otherwise, it will be 8378 * released while disconnecting from the current bss. 8379 */ 8380 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info, 8381 gfp_t gfp); 8382 8383 /** 8384 * cfg80211_port_authorized - notify cfg80211 of successful security association 8385 * 8386 * @dev: network device 8387 * @peer_addr: BSSID of the AP/P2P GO in case of STA/GC or STA/GC MAC address 8388 * in case of AP/P2P GO 8389 * @td_bitmap: transition disable policy 8390 * @td_bitmap_len: Length of transition disable policy 8391 * @gfp: allocation flags 8392 * 8393 * This function should be called by a driver that supports 4 way handshake 8394 * offload after a security association was successfully established (i.e., 8395 * the 4 way handshake was completed successfully). The call to this function 8396 * should be preceded with a call to cfg80211_connect_result(), 8397 * cfg80211_connect_done(), cfg80211_connect_bss() or cfg80211_roamed() to 8398 * indicate the 802.11 association. 8399 * This function can also be called by AP/P2P GO driver that supports 8400 * authentication offload. In this case the peer_mac passed is that of 8401 * associated STA/GC. 8402 */ 8403 void cfg80211_port_authorized(struct net_device *dev, const u8 *peer_addr, 8404 const u8* td_bitmap, u8 td_bitmap_len, gfp_t gfp); 8405 8406 /** 8407 * cfg80211_disconnected - notify cfg80211 that connection was dropped 8408 * 8409 * @dev: network device 8410 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 8411 * @ie_len: length of IEs 8412 * @reason: reason code for the disconnection, set it to 0 if unknown 8413 * @locally_generated: disconnection was requested locally 8414 * @gfp: allocation flags 8415 * 8416 * After it calls this function, the driver should enter an idle state 8417 * and not try to connect to any AP any more. 8418 */ 8419 void cfg80211_disconnected(struct net_device *dev, u16 reason, 8420 const u8 *ie, size_t ie_len, 8421 bool locally_generated, gfp_t gfp); 8422 8423 /** 8424 * cfg80211_ready_on_channel - notification of remain_on_channel start 8425 * @wdev: wireless device 8426 * @cookie: the request cookie 8427 * @chan: The current channel (from remain_on_channel request) 8428 * @duration: Duration in milliseconds that the driver intents to remain on the 8429 * channel 8430 * @gfp: allocation flags 8431 */ 8432 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, 8433 struct ieee80211_channel *chan, 8434 unsigned int duration, gfp_t gfp); 8435 8436 /** 8437 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 8438 * @wdev: wireless device 8439 * @cookie: the request cookie 8440 * @chan: The current channel (from remain_on_channel request) 8441 * @gfp: allocation flags 8442 */ 8443 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, 8444 struct ieee80211_channel *chan, 8445 gfp_t gfp); 8446 8447 /** 8448 * cfg80211_tx_mgmt_expired - tx_mgmt duration expired 8449 * @wdev: wireless device 8450 * @cookie: the requested cookie 8451 * @chan: The current channel (from tx_mgmt request) 8452 * @gfp: allocation flags 8453 */ 8454 void cfg80211_tx_mgmt_expired(struct wireless_dev *wdev, u64 cookie, 8455 struct ieee80211_channel *chan, gfp_t gfp); 8456 8457 /** 8458 * cfg80211_sinfo_alloc_tid_stats - allocate per-tid statistics. 8459 * 8460 * @sinfo: the station information 8461 * @gfp: allocation flags 8462 * 8463 * Return: 0 on success. Non-zero on error. 8464 */ 8465 int cfg80211_sinfo_alloc_tid_stats(struct station_info *sinfo, gfp_t gfp); 8466 8467 /** 8468 * cfg80211_sinfo_release_content - release contents of station info 8469 * @sinfo: the station information 8470 * 8471 * Releases any potentially allocated sub-information of the station 8472 * information, but not the struct itself (since it's typically on 8473 * the stack.) 8474 */ 8475 static inline void cfg80211_sinfo_release_content(struct station_info *sinfo) 8476 { 8477 kfree(sinfo->pertid); 8478 } 8479 8480 /** 8481 * cfg80211_new_sta - notify userspace about station 8482 * 8483 * @dev: the netdev 8484 * @mac_addr: the station's address 8485 * @sinfo: the station information 8486 * @gfp: allocation flags 8487 */ 8488 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 8489 struct station_info *sinfo, gfp_t gfp); 8490 8491 /** 8492 * cfg80211_del_sta_sinfo - notify userspace about deletion of a station 8493 * @dev: the netdev 8494 * @mac_addr: the station's address. For MLD station, MLD address is used. 8495 * @sinfo: the station information/statistics 8496 * @gfp: allocation flags 8497 */ 8498 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr, 8499 struct station_info *sinfo, gfp_t gfp); 8500 8501 /** 8502 * cfg80211_del_sta - notify userspace about deletion of a station 8503 * 8504 * @dev: the netdev 8505 * @mac_addr: the station's address. For MLD station, MLD address is used. 8506 * @gfp: allocation flags 8507 */ 8508 static inline void cfg80211_del_sta(struct net_device *dev, 8509 const u8 *mac_addr, gfp_t gfp) 8510 { 8511 cfg80211_del_sta_sinfo(dev, mac_addr, NULL, gfp); 8512 } 8513 8514 /** 8515 * cfg80211_conn_failed - connection request failed notification 8516 * 8517 * @dev: the netdev 8518 * @mac_addr: the station's address 8519 * @reason: the reason for connection failure 8520 * @gfp: allocation flags 8521 * 8522 * Whenever a station tries to connect to an AP and if the station 8523 * could not connect to the AP as the AP has rejected the connection 8524 * for some reasons, this function is called. 8525 * 8526 * The reason for connection failure can be any of the value from 8527 * nl80211_connect_failed_reason enum 8528 */ 8529 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, 8530 enum nl80211_connect_failed_reason reason, 8531 gfp_t gfp); 8532 8533 /** 8534 * struct cfg80211_rx_info - received management frame info 8535 * 8536 * @freq: Frequency on which the frame was received in kHz 8537 * @sig_dbm: signal strength in dBm, or 0 if unknown 8538 * @have_link_id: indicates the frame was received on a link of 8539 * an MLD, i.e. the @link_id field is valid 8540 * @link_id: the ID of the link the frame was received on 8541 * @buf: Management frame (header + body) 8542 * @len: length of the frame data 8543 * @flags: flags, as defined in &enum nl80211_rxmgmt_flags 8544 * @rx_tstamp: Hardware timestamp of frame RX in nanoseconds 8545 * @ack_tstamp: Hardware timestamp of ack TX in nanoseconds 8546 */ 8547 struct cfg80211_rx_info { 8548 int freq; 8549 int sig_dbm; 8550 bool have_link_id; 8551 u8 link_id; 8552 const u8 *buf; 8553 size_t len; 8554 u32 flags; 8555 u64 rx_tstamp; 8556 u64 ack_tstamp; 8557 }; 8558 8559 /** 8560 * cfg80211_rx_mgmt_ext - management frame notification with extended info 8561 * @wdev: wireless device receiving the frame 8562 * @info: RX info as defined in struct cfg80211_rx_info 8563 * 8564 * This function is called whenever an Action frame is received for a station 8565 * mode interface, but is not processed in kernel. 8566 * 8567 * Return: %true if a user space application has registered for this frame. 8568 * For action frames, that makes it responsible for rejecting unrecognized 8569 * action frames; %false otherwise, in which case for action frames the 8570 * driver is responsible for rejecting the frame. 8571 */ 8572 bool cfg80211_rx_mgmt_ext(struct wireless_dev *wdev, 8573 struct cfg80211_rx_info *info); 8574 8575 /** 8576 * cfg80211_rx_mgmt_khz - notification of received, unprocessed management frame 8577 * @wdev: wireless device receiving the frame 8578 * @freq: Frequency on which the frame was received in KHz 8579 * @sig_dbm: signal strength in dBm, or 0 if unknown 8580 * @buf: Management frame (header + body) 8581 * @len: length of the frame data 8582 * @flags: flags, as defined in enum nl80211_rxmgmt_flags 8583 * 8584 * This function is called whenever an Action frame is received for a station 8585 * mode interface, but is not processed in kernel. 8586 * 8587 * Return: %true if a user space application has registered for this frame. 8588 * For action frames, that makes it responsible for rejecting unrecognized 8589 * action frames; %false otherwise, in which case for action frames the 8590 * driver is responsible for rejecting the frame. 8591 */ 8592 static inline bool cfg80211_rx_mgmt_khz(struct wireless_dev *wdev, int freq, 8593 int sig_dbm, const u8 *buf, size_t len, 8594 u32 flags) 8595 { 8596 struct cfg80211_rx_info info = { 8597 .freq = freq, 8598 .sig_dbm = sig_dbm, 8599 .buf = buf, 8600 .len = len, 8601 .flags = flags 8602 }; 8603 8604 return cfg80211_rx_mgmt_ext(wdev, &info); 8605 } 8606 8607 /** 8608 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 8609 * @wdev: wireless device receiving the frame 8610 * @freq: Frequency on which the frame was received in MHz 8611 * @sig_dbm: signal strength in dBm, or 0 if unknown 8612 * @buf: Management frame (header + body) 8613 * @len: length of the frame data 8614 * @flags: flags, as defined in enum nl80211_rxmgmt_flags 8615 * 8616 * This function is called whenever an Action frame is received for a station 8617 * mode interface, but is not processed in kernel. 8618 * 8619 * Return: %true if a user space application has registered for this frame. 8620 * For action frames, that makes it responsible for rejecting unrecognized 8621 * action frames; %false otherwise, in which case for action frames the 8622 * driver is responsible for rejecting the frame. 8623 */ 8624 static inline bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, 8625 int sig_dbm, const u8 *buf, size_t len, 8626 u32 flags) 8627 { 8628 struct cfg80211_rx_info info = { 8629 .freq = MHZ_TO_KHZ(freq), 8630 .sig_dbm = sig_dbm, 8631 .buf = buf, 8632 .len = len, 8633 .flags = flags 8634 }; 8635 8636 return cfg80211_rx_mgmt_ext(wdev, &info); 8637 } 8638 8639 /** 8640 * struct cfg80211_tx_status - TX status for management frame information 8641 * 8642 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 8643 * @tx_tstamp: hardware TX timestamp in nanoseconds 8644 * @ack_tstamp: hardware ack RX timestamp in nanoseconds 8645 * @buf: Management frame (header + body) 8646 * @len: length of the frame data 8647 * @ack: Whether frame was acknowledged 8648 */ 8649 struct cfg80211_tx_status { 8650 u64 cookie; 8651 u64 tx_tstamp; 8652 u64 ack_tstamp; 8653 const u8 *buf; 8654 size_t len; 8655 bool ack; 8656 }; 8657 8658 /** 8659 * cfg80211_mgmt_tx_status_ext - TX status notification with extended info 8660 * @wdev: wireless device receiving the frame 8661 * @status: TX status data 8662 * @gfp: context flags 8663 * 8664 * This function is called whenever a management frame was requested to be 8665 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 8666 * transmission attempt with extended info. 8667 */ 8668 void cfg80211_mgmt_tx_status_ext(struct wireless_dev *wdev, 8669 struct cfg80211_tx_status *status, gfp_t gfp); 8670 8671 /** 8672 * cfg80211_mgmt_tx_status - notification of TX status for management frame 8673 * @wdev: wireless device receiving the frame 8674 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 8675 * @buf: Management frame (header + body) 8676 * @len: length of the frame data 8677 * @ack: Whether frame was acknowledged 8678 * @gfp: context flags 8679 * 8680 * This function is called whenever a management frame was requested to be 8681 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 8682 * transmission attempt. 8683 */ 8684 static inline void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, 8685 u64 cookie, const u8 *buf, 8686 size_t len, bool ack, gfp_t gfp) 8687 { 8688 struct cfg80211_tx_status status = { 8689 .cookie = cookie, 8690 .buf = buf, 8691 .len = len, 8692 .ack = ack 8693 }; 8694 8695 cfg80211_mgmt_tx_status_ext(wdev, &status, gfp); 8696 } 8697 8698 /** 8699 * cfg80211_control_port_tx_status - notification of TX status for control 8700 * port frames 8701 * @wdev: wireless device receiving the frame 8702 * @cookie: Cookie returned by cfg80211_ops::tx_control_port() 8703 * @buf: Data frame (header + body) 8704 * @len: length of the frame data 8705 * @ack: Whether frame was acknowledged 8706 * @gfp: context flags 8707 * 8708 * This function is called whenever a control port frame was requested to be 8709 * transmitted with cfg80211_ops::tx_control_port() to report the TX status of 8710 * the transmission attempt. 8711 */ 8712 void cfg80211_control_port_tx_status(struct wireless_dev *wdev, u64 cookie, 8713 const u8 *buf, size_t len, bool ack, 8714 gfp_t gfp); 8715 8716 /** 8717 * cfg80211_rx_control_port - notification about a received control port frame 8718 * @dev: The device the frame matched to 8719 * @skb: The skbuf with the control port frame. It is assumed that the skbuf 8720 * is 802.3 formatted (with 802.3 header). The skb can be non-linear. 8721 * This function does not take ownership of the skb, so the caller is 8722 * responsible for any cleanup. The caller must also ensure that 8723 * skb->protocol is set appropriately. 8724 * @unencrypted: Whether the frame was received unencrypted 8725 * @link_id: the link the frame was received on, -1 if not applicable or unknown 8726 * 8727 * This function is used to inform userspace about a received control port 8728 * frame. It should only be used if userspace indicated it wants to receive 8729 * control port frames over nl80211. 8730 * 8731 * The frame is the data portion of the 802.3 or 802.11 data frame with all 8732 * network layer headers removed (e.g. the raw EAPoL frame). 8733 * 8734 * Return: %true if the frame was passed to userspace 8735 */ 8736 bool cfg80211_rx_control_port(struct net_device *dev, struct sk_buff *skb, 8737 bool unencrypted, int link_id); 8738 8739 /** 8740 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 8741 * @dev: network device 8742 * @rssi_event: the triggered RSSI event 8743 * @rssi_level: new RSSI level value or 0 if not available 8744 * @gfp: context flags 8745 * 8746 * This function is called when a configured connection quality monitoring 8747 * rssi threshold reached event occurs. 8748 */ 8749 void cfg80211_cqm_rssi_notify(struct net_device *dev, 8750 enum nl80211_cqm_rssi_threshold_event rssi_event, 8751 s32 rssi_level, gfp_t gfp); 8752 8753 /** 8754 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 8755 * @dev: network device 8756 * @peer: peer's MAC address 8757 * @num_packets: how many packets were lost -- should be a fixed threshold 8758 * but probably no less than maybe 50, or maybe a throughput dependent 8759 * threshold (to account for temporary interference) 8760 * @gfp: context flags 8761 */ 8762 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 8763 const u8 *peer, u32 num_packets, gfp_t gfp); 8764 8765 /** 8766 * cfg80211_cqm_txe_notify - TX error rate event 8767 * @dev: network device 8768 * @peer: peer's MAC address 8769 * @num_packets: how many packets were lost 8770 * @rate: % of packets which failed transmission 8771 * @intvl: interval (in s) over which the TX failure threshold was breached. 8772 * @gfp: context flags 8773 * 8774 * Notify userspace when configured % TX failures over number of packets in a 8775 * given interval is exceeded. 8776 */ 8777 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, 8778 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); 8779 8780 /** 8781 * cfg80211_cqm_beacon_loss_notify - beacon loss event 8782 * @dev: network device 8783 * @gfp: context flags 8784 * 8785 * Notify userspace about beacon loss from the connected AP. 8786 */ 8787 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp); 8788 8789 /** 8790 * __cfg80211_radar_event - radar detection event 8791 * @wiphy: the wiphy 8792 * @chandef: chandef for the current channel 8793 * @offchan: the radar has been detected on the offchannel chain 8794 * @gfp: context flags 8795 * 8796 * This function is called when a radar is detected on the current chanenl. 8797 */ 8798 void __cfg80211_radar_event(struct wiphy *wiphy, 8799 struct cfg80211_chan_def *chandef, 8800 bool offchan, gfp_t gfp); 8801 8802 static inline void 8803 cfg80211_radar_event(struct wiphy *wiphy, 8804 struct cfg80211_chan_def *chandef, 8805 gfp_t gfp) 8806 { 8807 __cfg80211_radar_event(wiphy, chandef, false, gfp); 8808 } 8809 8810 static inline void 8811 cfg80211_background_radar_event(struct wiphy *wiphy, 8812 struct cfg80211_chan_def *chandef, 8813 gfp_t gfp) 8814 { 8815 __cfg80211_radar_event(wiphy, chandef, true, gfp); 8816 } 8817 8818 /** 8819 * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event 8820 * @dev: network device 8821 * @mac: MAC address of a station which opmode got modified 8822 * @sta_opmode: station's current opmode value 8823 * @gfp: context flags 8824 * 8825 * Driver should call this function when station's opmode modified via action 8826 * frame. 8827 */ 8828 void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac, 8829 struct sta_opmode_info *sta_opmode, 8830 gfp_t gfp); 8831 8832 /** 8833 * cfg80211_cac_event - Channel availability check (CAC) event 8834 * @netdev: network device 8835 * @chandef: chandef for the current channel 8836 * @event: type of event 8837 * @gfp: context flags 8838 * @link_id: valid link_id for MLO operation or 0 otherwise. 8839 * 8840 * This function is called when a Channel availability check (CAC) is finished 8841 * or aborted. This must be called to notify the completion of a CAC process, 8842 * also by full-MAC drivers. 8843 */ 8844 void cfg80211_cac_event(struct net_device *netdev, 8845 const struct cfg80211_chan_def *chandef, 8846 enum nl80211_radar_event event, gfp_t gfp, 8847 unsigned int link_id); 8848 8849 /** 8850 * cfg80211_background_cac_abort - Channel Availability Check offchan abort event 8851 * @wiphy: the wiphy 8852 * 8853 * This function is called by the driver when a Channel Availability Check 8854 * (CAC) is aborted by a offchannel dedicated chain. 8855 */ 8856 void cfg80211_background_cac_abort(struct wiphy *wiphy); 8857 8858 /** 8859 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 8860 * @dev: network device 8861 * @bssid: BSSID of AP (to avoid races) 8862 * @replay_ctr: new replay counter 8863 * @gfp: allocation flags 8864 */ 8865 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 8866 const u8 *replay_ctr, gfp_t gfp); 8867 8868 /** 8869 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate 8870 * @dev: network device 8871 * @index: candidate index (the smaller the index, the higher the priority) 8872 * @bssid: BSSID of AP 8873 * @preauth: Whether AP advertises support for RSN pre-authentication 8874 * @gfp: allocation flags 8875 */ 8876 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, 8877 const u8 *bssid, bool preauth, gfp_t gfp); 8878 8879 /** 8880 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame 8881 * @dev: The device the frame matched to 8882 * @addr: the transmitter address 8883 * @gfp: context flags 8884 * 8885 * This function is used in AP mode (only!) to inform userspace that 8886 * a spurious class 3 frame was received, to be able to deauth the 8887 * sender. 8888 * Return: %true if the frame was passed to userspace (or this failed 8889 * for a reason other than not having a subscription.) 8890 */ 8891 bool cfg80211_rx_spurious_frame(struct net_device *dev, 8892 const u8 *addr, gfp_t gfp); 8893 8894 /** 8895 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame 8896 * @dev: The device the frame matched to 8897 * @addr: the transmitter address 8898 * @gfp: context flags 8899 * 8900 * This function is used in AP mode (only!) to inform userspace that 8901 * an associated station sent a 4addr frame but that wasn't expected. 8902 * It is allowed and desirable to send this event only once for each 8903 * station to avoid event flooding. 8904 * Return: %true if the frame was passed to userspace (or this failed 8905 * for a reason other than not having a subscription.) 8906 */ 8907 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, 8908 const u8 *addr, gfp_t gfp); 8909 8910 /** 8911 * cfg80211_probe_status - notify userspace about probe status 8912 * @dev: the device the probe was sent on 8913 * @addr: the address of the peer 8914 * @cookie: the cookie filled in @probe_client previously 8915 * @acked: indicates whether probe was acked or not 8916 * @ack_signal: signal strength (in dBm) of the ACK frame. 8917 * @is_valid_ack_signal: indicates the ack_signal is valid or not. 8918 * @gfp: allocation flags 8919 */ 8920 void cfg80211_probe_status(struct net_device *dev, const u8 *addr, 8921 u64 cookie, bool acked, s32 ack_signal, 8922 bool is_valid_ack_signal, gfp_t gfp); 8923 8924 /** 8925 * cfg80211_report_obss_beacon_khz - report beacon from other APs 8926 * @wiphy: The wiphy that received the beacon 8927 * @frame: the frame 8928 * @len: length of the frame 8929 * @freq: frequency the frame was received on in KHz 8930 * @sig_dbm: signal strength in dBm, or 0 if unknown 8931 * 8932 * Use this function to report to userspace when a beacon was 8933 * received. It is not useful to call this when there is no 8934 * netdev that is in AP/GO mode. 8935 */ 8936 void cfg80211_report_obss_beacon_khz(struct wiphy *wiphy, const u8 *frame, 8937 size_t len, int freq, int sig_dbm); 8938 8939 /** 8940 * cfg80211_report_obss_beacon - report beacon from other APs 8941 * @wiphy: The wiphy that received the beacon 8942 * @frame: the frame 8943 * @len: length of the frame 8944 * @freq: frequency the frame was received on 8945 * @sig_dbm: signal strength in dBm, or 0 if unknown 8946 * 8947 * Use this function to report to userspace when a beacon was 8948 * received. It is not useful to call this when there is no 8949 * netdev that is in AP/GO mode. 8950 */ 8951 static inline void cfg80211_report_obss_beacon(struct wiphy *wiphy, 8952 const u8 *frame, size_t len, 8953 int freq, int sig_dbm) 8954 { 8955 cfg80211_report_obss_beacon_khz(wiphy, frame, len, MHZ_TO_KHZ(freq), 8956 sig_dbm); 8957 } 8958 8959 /** 8960 * struct cfg80211_beaconing_check_config - beacon check configuration 8961 * @iftype: the interface type to check for 8962 * @relax: allow IR-relaxation conditions to apply (e.g. another 8963 * interface connected already on the same channel) 8964 * NOTE: If this is set, wiphy mutex must be held. 8965 * @reg_power: &enum ieee80211_ap_reg_power value indicating the 8966 * advertised/used 6 GHz regulatory power setting 8967 */ 8968 struct cfg80211_beaconing_check_config { 8969 enum nl80211_iftype iftype; 8970 enum ieee80211_ap_reg_power reg_power; 8971 bool relax; 8972 }; 8973 8974 /** 8975 * cfg80211_reg_check_beaconing - check if beaconing is allowed 8976 * @wiphy: the wiphy 8977 * @chandef: the channel definition 8978 * @cfg: additional parameters for the checking 8979 * 8980 * Return: %true if there is no secondary channel or the secondary channel(s) 8981 * can be used for beaconing (i.e. is not a radar channel etc.) 8982 */ 8983 bool cfg80211_reg_check_beaconing(struct wiphy *wiphy, 8984 struct cfg80211_chan_def *chandef, 8985 struct cfg80211_beaconing_check_config *cfg); 8986 8987 /** 8988 * cfg80211_reg_can_beacon - check if beaconing is allowed 8989 * @wiphy: the wiphy 8990 * @chandef: the channel definition 8991 * @iftype: interface type 8992 * 8993 * Return: %true if there is no secondary channel or the secondary channel(s) 8994 * can be used for beaconing (i.e. is not a radar channel etc.) 8995 */ 8996 static inline bool 8997 cfg80211_reg_can_beacon(struct wiphy *wiphy, 8998 struct cfg80211_chan_def *chandef, 8999 enum nl80211_iftype iftype) 9000 { 9001 struct cfg80211_beaconing_check_config config = { 9002 .iftype = iftype, 9003 }; 9004 9005 return cfg80211_reg_check_beaconing(wiphy, chandef, &config); 9006 } 9007 9008 /** 9009 * cfg80211_reg_can_beacon_relax - check if beaconing is allowed with relaxation 9010 * @wiphy: the wiphy 9011 * @chandef: the channel definition 9012 * @iftype: interface type 9013 * 9014 * Return: %true if there is no secondary channel or the secondary channel(s) 9015 * can be used for beaconing (i.e. is not a radar channel etc.). This version 9016 * also checks if IR-relaxation conditions apply, to allow beaconing under 9017 * more permissive conditions. 9018 * 9019 * Context: Requires the wiphy mutex to be held. 9020 */ 9021 static inline bool 9022 cfg80211_reg_can_beacon_relax(struct wiphy *wiphy, 9023 struct cfg80211_chan_def *chandef, 9024 enum nl80211_iftype iftype) 9025 { 9026 struct cfg80211_beaconing_check_config config = { 9027 .iftype = iftype, 9028 .relax = true, 9029 }; 9030 9031 return cfg80211_reg_check_beaconing(wiphy, chandef, &config); 9032 } 9033 9034 /** 9035 * cfg80211_ch_switch_notify - update wdev channel and notify userspace 9036 * @dev: the device which switched channels 9037 * @chandef: the new channel definition 9038 * @link_id: the link ID for MLO, must be 0 for non-MLO 9039 * 9040 * Caller must hold wiphy mutex, therefore must only be called from sleepable 9041 * driver context! 9042 */ 9043 void cfg80211_ch_switch_notify(struct net_device *dev, 9044 struct cfg80211_chan_def *chandef, 9045 unsigned int link_id); 9046 9047 /** 9048 * cfg80211_ch_switch_started_notify - notify channel switch start 9049 * @dev: the device on which the channel switch started 9050 * @chandef: the future channel definition 9051 * @link_id: the link ID for MLO, must be 0 for non-MLO 9052 * @count: the number of TBTTs until the channel switch happens 9053 * @quiet: whether or not immediate quiet was requested by the AP 9054 * 9055 * Inform the userspace about the channel switch that has just 9056 * started, so that it can take appropriate actions (eg. starting 9057 * channel switch on other vifs), if necessary. 9058 */ 9059 void cfg80211_ch_switch_started_notify(struct net_device *dev, 9060 struct cfg80211_chan_def *chandef, 9061 unsigned int link_id, u8 count, 9062 bool quiet); 9063 9064 /** 9065 * ieee80211_operating_class_to_band - convert operating class to band 9066 * 9067 * @operating_class: the operating class to convert 9068 * @band: band pointer to fill 9069 * 9070 * Return: %true if the conversion was successful, %false otherwise. 9071 */ 9072 bool ieee80211_operating_class_to_band(u8 operating_class, 9073 enum nl80211_band *band); 9074 9075 /** 9076 * ieee80211_operating_class_to_chandef - convert operating class to chandef 9077 * 9078 * @operating_class: the operating class to convert 9079 * @chan: the ieee80211_channel to convert 9080 * @chandef: a pointer to the resulting chandef 9081 * 9082 * Return: %true if the conversion was successful, %false otherwise. 9083 */ 9084 bool ieee80211_operating_class_to_chandef(u8 operating_class, 9085 struct ieee80211_channel *chan, 9086 struct cfg80211_chan_def *chandef); 9087 9088 /** 9089 * ieee80211_chandef_to_operating_class - convert chandef to operation class 9090 * 9091 * @chandef: the chandef to convert 9092 * @op_class: a pointer to the resulting operating class 9093 * 9094 * Return: %true if the conversion was successful, %false otherwise. 9095 */ 9096 bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef, 9097 u8 *op_class); 9098 9099 /** 9100 * ieee80211_chandef_to_khz - convert chandef to frequency in KHz 9101 * 9102 * @chandef: the chandef to convert 9103 * 9104 * Return: the center frequency of chandef (1st segment) in KHz. 9105 */ 9106 static inline u32 9107 ieee80211_chandef_to_khz(const struct cfg80211_chan_def *chandef) 9108 { 9109 return MHZ_TO_KHZ(chandef->center_freq1) + chandef->freq1_offset; 9110 } 9111 9112 /** 9113 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation 9114 * @dev: the device on which the operation is requested 9115 * @peer: the MAC address of the peer device 9116 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or 9117 * NL80211_TDLS_TEARDOWN) 9118 * @reason_code: the reason code for teardown request 9119 * @gfp: allocation flags 9120 * 9121 * This function is used to request userspace to perform TDLS operation that 9122 * requires knowledge of keys, i.e., link setup or teardown when the AP 9123 * connection uses encryption. This is optional mechanism for the driver to use 9124 * if it can automatically determine when a TDLS link could be useful (e.g., 9125 * based on traffic and signal strength for a peer). 9126 */ 9127 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, 9128 enum nl80211_tdls_operation oper, 9129 u16 reason_code, gfp_t gfp); 9130 9131 /** 9132 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) 9133 * @rate: given rate_info to calculate bitrate from 9134 * 9135 * Return: calculated bitrate 9136 */ 9137 u32 cfg80211_calculate_bitrate(struct rate_info *rate); 9138 9139 /** 9140 * cfg80211_unregister_wdev - remove the given wdev 9141 * @wdev: struct wireless_dev to remove 9142 * 9143 * This function removes the device so it can no longer be used. It is necessary 9144 * to call this function even when cfg80211 requests the removal of the device 9145 * by calling the del_virtual_intf() callback. The function must also be called 9146 * when the driver wishes to unregister the wdev, e.g. when the hardware device 9147 * is unbound from the driver. 9148 * 9149 * Context: Requires the RTNL and wiphy mutex to be held. 9150 */ 9151 void cfg80211_unregister_wdev(struct wireless_dev *wdev); 9152 9153 /** 9154 * cfg80211_register_netdevice - register the given netdev 9155 * @dev: the netdev to register 9156 * 9157 * Note: In contexts coming from cfg80211 callbacks, you must call this rather 9158 * than register_netdevice(), unregister_netdev() is impossible as the RTNL is 9159 * held. Otherwise, both register_netdevice() and register_netdev() are usable 9160 * instead as well. 9161 * 9162 * Context: Requires the RTNL and wiphy mutex to be held. 9163 * 9164 * Return: 0 on success. Non-zero on error. 9165 */ 9166 int cfg80211_register_netdevice(struct net_device *dev); 9167 9168 /** 9169 * cfg80211_unregister_netdevice - unregister the given netdev 9170 * @dev: the netdev to register 9171 * 9172 * Note: In contexts coming from cfg80211 callbacks, you must call this rather 9173 * than unregister_netdevice(), unregister_netdev() is impossible as the RTNL 9174 * is held. Otherwise, both unregister_netdevice() and unregister_netdev() are 9175 * usable instead as well. 9176 * 9177 * Context: Requires the RTNL and wiphy mutex to be held. 9178 */ 9179 static inline void cfg80211_unregister_netdevice(struct net_device *dev) 9180 { 9181 #if IS_ENABLED(CONFIG_CFG80211) 9182 cfg80211_unregister_wdev(dev->ieee80211_ptr); 9183 #endif 9184 } 9185 9186 /** 9187 * struct cfg80211_ft_event_params - FT Information Elements 9188 * @ies: FT IEs 9189 * @ies_len: length of the FT IE in bytes 9190 * @target_ap: target AP's MAC address 9191 * @ric_ies: RIC IE 9192 * @ric_ies_len: length of the RIC IE in bytes 9193 */ 9194 struct cfg80211_ft_event_params { 9195 const u8 *ies; 9196 size_t ies_len; 9197 const u8 *target_ap; 9198 const u8 *ric_ies; 9199 size_t ric_ies_len; 9200 }; 9201 9202 /** 9203 * cfg80211_ft_event - notify userspace about FT IE and RIC IE 9204 * @netdev: network device 9205 * @ft_event: IE information 9206 */ 9207 void cfg80211_ft_event(struct net_device *netdev, 9208 struct cfg80211_ft_event_params *ft_event); 9209 9210 /** 9211 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer 9212 * @ies: the input IE buffer 9213 * @len: the input length 9214 * @attr: the attribute ID to find 9215 * @buf: output buffer, can be %NULL if the data isn't needed, e.g. 9216 * if the function is only called to get the needed buffer size 9217 * @bufsize: size of the output buffer 9218 * 9219 * The function finds a given P2P attribute in the (vendor) IEs and 9220 * copies its contents to the given buffer. 9221 * 9222 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is 9223 * malformed or the attribute can't be found (respectively), or the 9224 * length of the found attribute (which can be zero). 9225 */ 9226 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, 9227 enum ieee80211_p2p_attr_id attr, 9228 u8 *buf, unsigned int bufsize); 9229 9230 /** 9231 * ieee80211_ie_split_ric - split an IE buffer according to ordering (with RIC) 9232 * @ies: the IE buffer 9233 * @ielen: the length of the IE buffer 9234 * @ids: an array with element IDs that are allowed before 9235 * the split. A WLAN_EID_EXTENSION value means that the next 9236 * EID in the list is a sub-element of the EXTENSION IE. 9237 * @n_ids: the size of the element ID array 9238 * @after_ric: array IE types that come after the RIC element 9239 * @n_after_ric: size of the @after_ric array 9240 * @offset: offset where to start splitting in the buffer 9241 * 9242 * This function splits an IE buffer by updating the @offset 9243 * variable to point to the location where the buffer should be 9244 * split. 9245 * 9246 * It assumes that the given IE buffer is well-formed, this 9247 * has to be guaranteed by the caller! 9248 * 9249 * It also assumes that the IEs in the buffer are ordered 9250 * correctly, if not the result of using this function will not 9251 * be ordered correctly either, i.e. it does no reordering. 9252 * 9253 * Return: The offset where the next part of the buffer starts, which 9254 * may be @ielen if the entire (remainder) of the buffer should be 9255 * used. 9256 */ 9257 size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, 9258 const u8 *ids, int n_ids, 9259 const u8 *after_ric, int n_after_ric, 9260 size_t offset); 9261 9262 /** 9263 * ieee80211_ie_split - split an IE buffer according to ordering 9264 * @ies: the IE buffer 9265 * @ielen: the length of the IE buffer 9266 * @ids: an array with element IDs that are allowed before 9267 * the split. A WLAN_EID_EXTENSION value means that the next 9268 * EID in the list is a sub-element of the EXTENSION IE. 9269 * @n_ids: the size of the element ID array 9270 * @offset: offset where to start splitting in the buffer 9271 * 9272 * This function splits an IE buffer by updating the @offset 9273 * variable to point to the location where the buffer should be 9274 * split. 9275 * 9276 * It assumes that the given IE buffer is well-formed, this 9277 * has to be guaranteed by the caller! 9278 * 9279 * It also assumes that the IEs in the buffer are ordered 9280 * correctly, if not the result of using this function will not 9281 * be ordered correctly either, i.e. it does no reordering. 9282 * 9283 * Return: The offset where the next part of the buffer starts, which 9284 * may be @ielen if the entire (remainder) of the buffer should be 9285 * used. 9286 */ 9287 static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen, 9288 const u8 *ids, int n_ids, size_t offset) 9289 { 9290 return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset); 9291 } 9292 9293 /** 9294 * ieee80211_fragment_element - fragment the last element in skb 9295 * @skb: The skbuf that the element was added to 9296 * @len_pos: Pointer to length of the element to fragment 9297 * @frag_id: The element ID to use for fragments 9298 * 9299 * This function fragments all data after @len_pos, adding fragmentation 9300 * elements with the given ID as appropriate. The SKB will grow in size 9301 * accordingly. 9302 */ 9303 void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id); 9304 9305 /** 9306 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN 9307 * @wdev: the wireless device reporting the wakeup 9308 * @wakeup: the wakeup report 9309 * @gfp: allocation flags 9310 * 9311 * This function reports that the given device woke up. If it 9312 * caused the wakeup, report the reason(s), otherwise you may 9313 * pass %NULL as the @wakeup parameter to advertise that something 9314 * else caused the wakeup. 9315 */ 9316 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, 9317 struct cfg80211_wowlan_wakeup *wakeup, 9318 gfp_t gfp); 9319 9320 /** 9321 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver. 9322 * 9323 * @wdev: the wireless device for which critical protocol is stopped. 9324 * @gfp: allocation flags 9325 * 9326 * This function can be called by the driver to indicate it has reverted 9327 * operation back to normal. One reason could be that the duration given 9328 * by .crit_proto_start() has expired. 9329 */ 9330 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp); 9331 9332 /** 9333 * ieee80211_get_num_supported_channels - get number of channels device has 9334 * @wiphy: the wiphy 9335 * 9336 * Return: the number of channels supported by the device. 9337 */ 9338 unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy); 9339 9340 /** 9341 * cfg80211_check_combinations - check interface combinations 9342 * 9343 * @wiphy: the wiphy 9344 * @params: the interface combinations parameter 9345 * 9346 * This function can be called by the driver to check whether a 9347 * combination of interfaces and their types are allowed according to 9348 * the interface combinations. 9349 * 9350 * Return: 0 if combinations are allowed. Non-zero on error. 9351 */ 9352 int cfg80211_check_combinations(struct wiphy *wiphy, 9353 struct iface_combination_params *params); 9354 9355 /** 9356 * cfg80211_iter_combinations - iterate over matching combinations 9357 * 9358 * @wiphy: the wiphy 9359 * @params: the interface combinations parameter 9360 * @iter: function to call for each matching combination 9361 * @data: pointer to pass to iter function 9362 * 9363 * This function can be called by the driver to check what possible 9364 * combinations it fits in at a given moment, e.g. for channel switching 9365 * purposes. 9366 * 9367 * Return: 0 on success. Non-zero on error. 9368 */ 9369 int cfg80211_iter_combinations(struct wiphy *wiphy, 9370 struct iface_combination_params *params, 9371 void (*iter)(const struct ieee80211_iface_combination *c, 9372 void *data), 9373 void *data); 9374 9375 /** 9376 * cfg80211_stop_iface - trigger interface disconnection 9377 * 9378 * @wiphy: the wiphy 9379 * @wdev: wireless device 9380 * @gfp: context flags 9381 * 9382 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA 9383 * disconnected. 9384 * 9385 * Note: This doesn't need any locks and is asynchronous. 9386 */ 9387 void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev, 9388 gfp_t gfp); 9389 9390 /** 9391 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy 9392 * @wiphy: the wiphy to shut down 9393 * 9394 * This function shuts down all interfaces belonging to this wiphy by 9395 * calling dev_close() (and treating non-netdev interfaces as needed). 9396 * It shouldn't really be used unless there are some fatal device errors 9397 * that really can't be recovered in any other way. 9398 * 9399 * Callers must hold the RTNL and be able to deal with callbacks into 9400 * the driver while the function is running. 9401 */ 9402 void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy); 9403 9404 /** 9405 * wiphy_ext_feature_set - set the extended feature flag 9406 * 9407 * @wiphy: the wiphy to modify. 9408 * @ftidx: extended feature bit index. 9409 * 9410 * The extended features are flagged in multiple bytes (see 9411 * &struct wiphy.@ext_features) 9412 */ 9413 static inline void wiphy_ext_feature_set(struct wiphy *wiphy, 9414 enum nl80211_ext_feature_index ftidx) 9415 { 9416 u8 *ft_byte; 9417 9418 ft_byte = &wiphy->ext_features[ftidx / 8]; 9419 *ft_byte |= BIT(ftidx % 8); 9420 } 9421 9422 /** 9423 * wiphy_ext_feature_isset - check the extended feature flag 9424 * 9425 * @wiphy: the wiphy to modify. 9426 * @ftidx: extended feature bit index. 9427 * 9428 * The extended features are flagged in multiple bytes (see 9429 * &struct wiphy.@ext_features) 9430 * 9431 * Return: %true if extended feature flag is set, %false otherwise 9432 */ 9433 static inline bool 9434 wiphy_ext_feature_isset(struct wiphy *wiphy, 9435 enum nl80211_ext_feature_index ftidx) 9436 { 9437 u8 ft_byte; 9438 9439 ft_byte = wiphy->ext_features[ftidx / 8]; 9440 return (ft_byte & BIT(ftidx % 8)) != 0; 9441 } 9442 9443 /** 9444 * cfg80211_free_nan_func - free NAN function 9445 * @f: NAN function that should be freed 9446 * 9447 * Frees all the NAN function and all it's allocated members. 9448 */ 9449 void cfg80211_free_nan_func(struct cfg80211_nan_func *f); 9450 9451 /** 9452 * struct cfg80211_nan_match_params - NAN match parameters 9453 * @type: the type of the function that triggered a match. If it is 9454 * %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber. 9455 * If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery 9456 * result. 9457 * If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up. 9458 * @inst_id: the local instance id 9459 * @peer_inst_id: the instance id of the peer's function 9460 * @addr: the MAC address of the peer 9461 * @info_len: the length of the &info 9462 * @info: the Service Specific Info from the peer (if any) 9463 * @cookie: unique identifier of the corresponding function 9464 */ 9465 struct cfg80211_nan_match_params { 9466 enum nl80211_nan_function_type type; 9467 u8 inst_id; 9468 u8 peer_inst_id; 9469 const u8 *addr; 9470 u8 info_len; 9471 const u8 *info; 9472 u64 cookie; 9473 }; 9474 9475 /** 9476 * cfg80211_nan_match - report a match for a NAN function. 9477 * @wdev: the wireless device reporting the match 9478 * @match: match notification parameters 9479 * @gfp: allocation flags 9480 * 9481 * This function reports that the a NAN function had a match. This 9482 * can be a subscribe that had a match or a solicited publish that 9483 * was sent. It can also be a follow up that was received. 9484 */ 9485 void cfg80211_nan_match(struct wireless_dev *wdev, 9486 struct cfg80211_nan_match_params *match, gfp_t gfp); 9487 9488 /** 9489 * cfg80211_nan_func_terminated - notify about NAN function termination. 9490 * 9491 * @wdev: the wireless device reporting the match 9492 * @inst_id: the local instance id 9493 * @reason: termination reason (one of the NL80211_NAN_FUNC_TERM_REASON_*) 9494 * @cookie: unique NAN function identifier 9495 * @gfp: allocation flags 9496 * 9497 * This function reports that the a NAN function is terminated. 9498 */ 9499 void cfg80211_nan_func_terminated(struct wireless_dev *wdev, 9500 u8 inst_id, 9501 enum nl80211_nan_func_term_reason reason, 9502 u64 cookie, gfp_t gfp); 9503 9504 /* ethtool helper */ 9505 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info); 9506 9507 /** 9508 * cfg80211_external_auth_request - userspace request for authentication 9509 * @netdev: network device 9510 * @params: External authentication parameters 9511 * @gfp: allocation flags 9512 * Returns: 0 on success, < 0 on error 9513 */ 9514 int cfg80211_external_auth_request(struct net_device *netdev, 9515 struct cfg80211_external_auth_params *params, 9516 gfp_t gfp); 9517 9518 /** 9519 * cfg80211_pmsr_report - report peer measurement result data 9520 * @wdev: the wireless device reporting the measurement 9521 * @req: the original measurement request 9522 * @result: the result data 9523 * @gfp: allocation flags 9524 */ 9525 void cfg80211_pmsr_report(struct wireless_dev *wdev, 9526 struct cfg80211_pmsr_request *req, 9527 struct cfg80211_pmsr_result *result, 9528 gfp_t gfp); 9529 9530 /** 9531 * cfg80211_pmsr_complete - report peer measurement completed 9532 * @wdev: the wireless device reporting the measurement 9533 * @req: the original measurement request 9534 * @gfp: allocation flags 9535 * 9536 * Report that the entire measurement completed, after this 9537 * the request pointer will no longer be valid. 9538 */ 9539 void cfg80211_pmsr_complete(struct wireless_dev *wdev, 9540 struct cfg80211_pmsr_request *req, 9541 gfp_t gfp); 9542 9543 /** 9544 * cfg80211_iftype_allowed - check whether the interface can be allowed 9545 * @wiphy: the wiphy 9546 * @iftype: interface type 9547 * @is_4addr: use_4addr flag, must be '0' when check_swif is '1' 9548 * @check_swif: check iftype against software interfaces 9549 * 9550 * Check whether the interface is allowed to operate; additionally, this API 9551 * can be used to check iftype against the software interfaces when 9552 * check_swif is '1'. 9553 * 9554 * Return: %true if allowed, %false otherwise 9555 */ 9556 bool cfg80211_iftype_allowed(struct wiphy *wiphy, enum nl80211_iftype iftype, 9557 bool is_4addr, u8 check_swif); 9558 9559 9560 /** 9561 * cfg80211_assoc_comeback - notification of association that was 9562 * temporarily rejected with a comeback 9563 * @netdev: network device 9564 * @ap_addr: AP (MLD) address that rejected the association 9565 * @timeout: timeout interval value TUs. 9566 * 9567 * this function may sleep. the caller must hold the corresponding wdev's mutex. 9568 */ 9569 void cfg80211_assoc_comeback(struct net_device *netdev, 9570 const u8 *ap_addr, u32 timeout); 9571 9572 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 9573 9574 /* wiphy_printk helpers, similar to dev_printk */ 9575 9576 #define wiphy_printk(level, wiphy, format, args...) \ 9577 dev_printk(level, &(wiphy)->dev, format, ##args) 9578 #define wiphy_emerg(wiphy, format, args...) \ 9579 dev_emerg(&(wiphy)->dev, format, ##args) 9580 #define wiphy_alert(wiphy, format, args...) \ 9581 dev_alert(&(wiphy)->dev, format, ##args) 9582 #define wiphy_crit(wiphy, format, args...) \ 9583 dev_crit(&(wiphy)->dev, format, ##args) 9584 #define wiphy_err(wiphy, format, args...) \ 9585 dev_err(&(wiphy)->dev, format, ##args) 9586 #define wiphy_warn(wiphy, format, args...) \ 9587 dev_warn(&(wiphy)->dev, format, ##args) 9588 #define wiphy_notice(wiphy, format, args...) \ 9589 dev_notice(&(wiphy)->dev, format, ##args) 9590 #define wiphy_info(wiphy, format, args...) \ 9591 dev_info(&(wiphy)->dev, format, ##args) 9592 #define wiphy_info_once(wiphy, format, args...) \ 9593 dev_info_once(&(wiphy)->dev, format, ##args) 9594 9595 #define wiphy_err_ratelimited(wiphy, format, args...) \ 9596 dev_err_ratelimited(&(wiphy)->dev, format, ##args) 9597 #define wiphy_warn_ratelimited(wiphy, format, args...) \ 9598 dev_warn_ratelimited(&(wiphy)->dev, format, ##args) 9599 9600 #define wiphy_debug(wiphy, format, args...) \ 9601 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 9602 9603 #define wiphy_dbg(wiphy, format, args...) \ 9604 dev_dbg(&(wiphy)->dev, format, ##args) 9605 9606 #if defined(VERBOSE_DEBUG) 9607 #define wiphy_vdbg wiphy_dbg 9608 #else 9609 #define wiphy_vdbg(wiphy, format, args...) \ 9610 ({ \ 9611 if (0) \ 9612 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 9613 0; \ 9614 }) 9615 #endif 9616 9617 /* 9618 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 9619 * of using a WARN/WARN_ON to get the message out, including the 9620 * file/line information and a backtrace. 9621 */ 9622 #define wiphy_WARN(wiphy, format, args...) \ 9623 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 9624 9625 /** 9626 * cfg80211_update_owe_info_event - Notify the peer's OWE info to user space 9627 * @netdev: network device 9628 * @owe_info: peer's owe info 9629 * @gfp: allocation flags 9630 */ 9631 void cfg80211_update_owe_info_event(struct net_device *netdev, 9632 struct cfg80211_update_owe_info *owe_info, 9633 gfp_t gfp); 9634 9635 /** 9636 * cfg80211_bss_flush - resets all the scan entries 9637 * @wiphy: the wiphy 9638 */ 9639 void cfg80211_bss_flush(struct wiphy *wiphy); 9640 9641 /** 9642 * cfg80211_bss_color_notify - notify about bss color event 9643 * @dev: network device 9644 * @cmd: the actual event we want to notify 9645 * @count: the number of TBTTs until the color change happens 9646 * @color_bitmap: representations of the colors that the local BSS is aware of 9647 * @link_id: valid link_id in case of MLO or 0 for non-MLO. 9648 * 9649 * Return: 0 on success. Non-zero on error. 9650 */ 9651 int cfg80211_bss_color_notify(struct net_device *dev, 9652 enum nl80211_commands cmd, u8 count, 9653 u64 color_bitmap, u8 link_id); 9654 9655 /** 9656 * cfg80211_obss_color_collision_notify - notify about bss color collision 9657 * @dev: network device 9658 * @color_bitmap: representations of the colors that the local BSS is aware of 9659 * @link_id: valid link_id in case of MLO or 0 for non-MLO. 9660 * 9661 * Return: 0 on success. Non-zero on error. 9662 */ 9663 static inline int cfg80211_obss_color_collision_notify(struct net_device *dev, 9664 u64 color_bitmap, 9665 u8 link_id) 9666 { 9667 return cfg80211_bss_color_notify(dev, NL80211_CMD_OBSS_COLOR_COLLISION, 9668 0, color_bitmap, link_id); 9669 } 9670 9671 /** 9672 * cfg80211_color_change_started_notify - notify color change start 9673 * @dev: the device on which the color is switched 9674 * @count: the number of TBTTs until the color change happens 9675 * @link_id: valid link_id in case of MLO or 0 for non-MLO. 9676 * 9677 * Inform the userspace about the color change that has started. 9678 * 9679 * Return: 0 on success. Non-zero on error. 9680 */ 9681 static inline int cfg80211_color_change_started_notify(struct net_device *dev, 9682 u8 count, u8 link_id) 9683 { 9684 return cfg80211_bss_color_notify(dev, NL80211_CMD_COLOR_CHANGE_STARTED, 9685 count, 0, link_id); 9686 } 9687 9688 /** 9689 * cfg80211_color_change_aborted_notify - notify color change abort 9690 * @dev: the device on which the color is switched 9691 * @link_id: valid link_id in case of MLO or 0 for non-MLO. 9692 * 9693 * Inform the userspace about the color change that has aborted. 9694 * 9695 * Return: 0 on success. Non-zero on error. 9696 */ 9697 static inline int cfg80211_color_change_aborted_notify(struct net_device *dev, 9698 u8 link_id) 9699 { 9700 return cfg80211_bss_color_notify(dev, NL80211_CMD_COLOR_CHANGE_ABORTED, 9701 0, 0, link_id); 9702 } 9703 9704 /** 9705 * cfg80211_color_change_notify - notify color change completion 9706 * @dev: the device on which the color was switched 9707 * @link_id: valid link_id in case of MLO or 0 for non-MLO. 9708 * 9709 * Inform the userspace about the color change that has completed. 9710 * 9711 * Return: 0 on success. Non-zero on error. 9712 */ 9713 static inline int cfg80211_color_change_notify(struct net_device *dev, 9714 u8 link_id) 9715 { 9716 return cfg80211_bss_color_notify(dev, 9717 NL80211_CMD_COLOR_CHANGE_COMPLETED, 9718 0, 0, link_id); 9719 } 9720 9721 /** 9722 * cfg80211_links_removed - Notify about removed STA MLD setup links. 9723 * @dev: network device. 9724 * @link_mask: BIT mask of removed STA MLD setup link IDs. 9725 * 9726 * Inform cfg80211 and the userspace about removed STA MLD setup links due to 9727 * AP MLD removing the corresponding affiliated APs with Multi-Link 9728 * reconfiguration. Note that it's not valid to remove all links, in this 9729 * case disconnect instead. 9730 * Also note that the wdev mutex must be held. 9731 */ 9732 void cfg80211_links_removed(struct net_device *dev, u16 link_mask); 9733 9734 /** 9735 * struct cfg80211_mlo_reconf_done_data - MLO reconfiguration data 9736 * @buf: MLO Reconfiguration Response frame (header + body) 9737 * @len: length of the frame data 9738 * @added_links: BIT mask of links successfully added to the association 9739 * @links: per-link information indexed by link ID 9740 * @links.bss: the BSS that MLO reconfiguration was requested for, ownership of 9741 * the pointer moves to cfg80211 in the call to 9742 * cfg80211_mlo_reconf_add_done(). 9743 * 9744 * The BSS pointer must be set for each link for which 'add' operation was 9745 * requested in the assoc_ml_reconf callback. 9746 */ 9747 struct cfg80211_mlo_reconf_done_data { 9748 const u8 *buf; 9749 size_t len; 9750 u16 added_links; 9751 struct { 9752 struct cfg80211_bss *bss; 9753 } links[IEEE80211_MLD_MAX_NUM_LINKS]; 9754 }; 9755 9756 /** 9757 * cfg80211_mlo_reconf_add_done - Notify about MLO reconfiguration result 9758 * @dev: network device. 9759 * @data: MLO reconfiguration done data, &struct cfg80211_mlo_reconf_done_data 9760 * 9761 * Inform cfg80211 and the userspace that processing of ML reconfiguration 9762 * request to add links to the association is done. 9763 */ 9764 void cfg80211_mlo_reconf_add_done(struct net_device *dev, 9765 struct cfg80211_mlo_reconf_done_data *data); 9766 9767 /** 9768 * cfg80211_schedule_channels_check - schedule regulatory check if needed 9769 * @wdev: the wireless device to check 9770 * 9771 * In case the device supports NO_IR or DFS relaxations, schedule regulatory 9772 * channels check, as previous concurrent operation conditions may not 9773 * hold anymore. 9774 */ 9775 void cfg80211_schedule_channels_check(struct wireless_dev *wdev); 9776 9777 /** 9778 * cfg80211_epcs_changed - Notify about a change in EPCS state 9779 * @netdev: the wireless device whose EPCS state changed 9780 * @enabled: set to true if EPCS was enabled, otherwise set to false. 9781 */ 9782 void cfg80211_epcs_changed(struct net_device *netdev, bool enabled); 9783 9784 #ifdef CONFIG_CFG80211_DEBUGFS 9785 /** 9786 * wiphy_locked_debugfs_read - do a locked read in debugfs 9787 * @wiphy: the wiphy to use 9788 * @file: the file being read 9789 * @buf: the buffer to fill and then read from 9790 * @bufsize: size of the buffer 9791 * @userbuf: the user buffer to copy to 9792 * @count: read count 9793 * @ppos: read position 9794 * @handler: the read handler to call (under wiphy lock) 9795 * @data: additional data to pass to the read handler 9796 * 9797 * Return: the number of characters read, or a negative errno 9798 */ 9799 ssize_t wiphy_locked_debugfs_read(struct wiphy *wiphy, struct file *file, 9800 char *buf, size_t bufsize, 9801 char __user *userbuf, size_t count, 9802 loff_t *ppos, 9803 ssize_t (*handler)(struct wiphy *wiphy, 9804 struct file *file, 9805 char *buf, 9806 size_t bufsize, 9807 void *data), 9808 void *data); 9809 9810 /** 9811 * wiphy_locked_debugfs_write - do a locked write in debugfs 9812 * @wiphy: the wiphy to use 9813 * @file: the file being written to 9814 * @buf: the buffer to copy the user data to 9815 * @bufsize: size of the buffer 9816 * @userbuf: the user buffer to copy from 9817 * @count: read count 9818 * @handler: the write handler to call (under wiphy lock) 9819 * @data: additional data to pass to the write handler 9820 * 9821 * Return: the number of characters written, or a negative errno 9822 */ 9823 ssize_t wiphy_locked_debugfs_write(struct wiphy *wiphy, struct file *file, 9824 char *buf, size_t bufsize, 9825 const char __user *userbuf, size_t count, 9826 ssize_t (*handler)(struct wiphy *wiphy, 9827 struct file *file, 9828 char *buf, 9829 size_t count, 9830 void *data), 9831 void *data); 9832 #endif 9833 9834 #endif /* __NET_CFG80211_H */ 9835