1 #ifndef __NET_CFG80211_H 2 #define __NET_CFG80211_H 3 /* 4 * 802.11 device and configuration interface 5 * 6 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/netdevice.h> 14 #include <linux/debugfs.h> 15 #include <linux/list.h> 16 #include <linux/bug.h> 17 #include <linux/netlink.h> 18 #include <linux/skbuff.h> 19 #include <linux/nl80211.h> 20 #include <linux/if_ether.h> 21 #include <linux/ieee80211.h> 22 #include <linux/net.h> 23 #include <net/regulatory.h> 24 25 /** 26 * DOC: Introduction 27 * 28 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges 29 * userspace and drivers, and offers some utility functionality associated 30 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used 31 * by all modern wireless drivers in Linux, so that they offer a consistent 32 * API through nl80211. For backward compatibility, cfg80211 also offers 33 * wireless extensions to userspace, but hides them from drivers completely. 34 * 35 * Additionally, cfg80211 contains code to help enforce regulatory spectrum 36 * use restrictions. 37 */ 38 39 40 /** 41 * DOC: Device registration 42 * 43 * In order for a driver to use cfg80211, it must register the hardware device 44 * with cfg80211. This happens through a number of hardware capability structs 45 * described below. 46 * 47 * The fundamental structure for each device is the 'wiphy', of which each 48 * instance describes a physical wireless device connected to the system. Each 49 * such wiphy can have zero, one, or many virtual interfaces associated with 50 * it, which need to be identified as such by pointing the network interface's 51 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes 52 * the wireless part of the interface, normally this struct is embedded in the 53 * network interface's private data area. Drivers can optionally allow creating 54 * or destroying virtual interfaces on the fly, but without at least one or the 55 * ability to create some the wireless device isn't useful. 56 * 57 * Each wiphy structure contains device capability information, and also has 58 * a pointer to the various operations the driver offers. The definitions and 59 * structures here describe these capabilities in detail. 60 */ 61 62 struct wiphy; 63 64 /* 65 * wireless hardware capability structures 66 */ 67 68 /** 69 * enum ieee80211_band - supported frequency bands 70 * 71 * The bands are assigned this way because the supported 72 * bitrates differ in these bands. 73 * 74 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band 75 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) 76 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz) 77 * @IEEE80211_NUM_BANDS: number of defined bands 78 */ 79 enum ieee80211_band { 80 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, 81 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, 82 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ, 83 84 /* keep last */ 85 IEEE80211_NUM_BANDS 86 }; 87 88 /** 89 * enum ieee80211_channel_flags - channel flags 90 * 91 * Channel flags set by the regulatory control code. 92 * 93 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 94 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted 95 * on this channel. 96 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. 97 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 98 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 99 * is not permitted. 100 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 101 * is not permitted. 102 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel. 103 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band, 104 * this flag indicates that an 80 MHz channel cannot use this 105 * channel as the control or any of the secondary channels. 106 * This may be due to the driver or due to regulatory bandwidth 107 * restrictions. 108 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band, 109 * this flag indicates that an 160 MHz channel cannot use this 110 * channel as the control or any of the secondary channels. 111 * This may be due to the driver or due to regulatory bandwidth 112 * restrictions. 113 */ 114 enum ieee80211_channel_flags { 115 IEEE80211_CHAN_DISABLED = 1<<0, 116 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, 117 IEEE80211_CHAN_NO_IBSS = 1<<2, 118 IEEE80211_CHAN_RADAR = 1<<3, 119 IEEE80211_CHAN_NO_HT40PLUS = 1<<4, 120 IEEE80211_CHAN_NO_HT40MINUS = 1<<5, 121 IEEE80211_CHAN_NO_OFDM = 1<<6, 122 IEEE80211_CHAN_NO_80MHZ = 1<<7, 123 IEEE80211_CHAN_NO_160MHZ = 1<<8, 124 }; 125 126 #define IEEE80211_CHAN_NO_HT40 \ 127 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 128 129 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000 130 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000) 131 132 /** 133 * struct ieee80211_channel - channel definition 134 * 135 * This structure describes a single channel for use 136 * with cfg80211. 137 * 138 * @center_freq: center frequency in MHz 139 * @hw_value: hardware-specific value for the channel 140 * @flags: channel flags from &enum ieee80211_channel_flags. 141 * @orig_flags: channel flags at registration time, used by regulatory 142 * code to support devices with additional restrictions 143 * @band: band this channel belongs to. 144 * @max_antenna_gain: maximum antenna gain in dBi 145 * @max_power: maximum transmission power (in dBm) 146 * @max_reg_power: maximum regulatory transmission power (in dBm) 147 * @beacon_found: helper to regulatory code to indicate when a beacon 148 * has been found on this channel. Use regulatory_hint_found_beacon() 149 * to enable this, this is useful only on 5 GHz band. 150 * @orig_mag: internal use 151 * @orig_mpwr: internal use 152 * @dfs_state: current state of this channel. Only relevant if radar is required 153 * on this channel. 154 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered. 155 */ 156 struct ieee80211_channel { 157 enum ieee80211_band band; 158 u16 center_freq; 159 u16 hw_value; 160 u32 flags; 161 int max_antenna_gain; 162 int max_power; 163 int max_reg_power; 164 bool beacon_found; 165 u32 orig_flags; 166 int orig_mag, orig_mpwr; 167 enum nl80211_dfs_state dfs_state; 168 unsigned long dfs_state_entered; 169 }; 170 171 /** 172 * enum ieee80211_rate_flags - rate flags 173 * 174 * Hardware/specification flags for rates. These are structured 175 * in a way that allows using the same bitrate structure for 176 * different bands/PHY modes. 177 * 178 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short 179 * preamble on this bitrate; only relevant in 2.4GHz band and 180 * with CCK rates. 181 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate 182 * when used with 802.11a (on the 5 GHz band); filled by the 183 * core code when registering the wiphy. 184 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate 185 * when used with 802.11b (on the 2.4 GHz band); filled by the 186 * core code when registering the wiphy. 187 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate 188 * when used with 802.11g (on the 2.4 GHz band); filled by the 189 * core code when registering the wiphy. 190 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. 191 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode 192 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode 193 */ 194 enum ieee80211_rate_flags { 195 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, 196 IEEE80211_RATE_MANDATORY_A = 1<<1, 197 IEEE80211_RATE_MANDATORY_B = 1<<2, 198 IEEE80211_RATE_MANDATORY_G = 1<<3, 199 IEEE80211_RATE_ERP_G = 1<<4, 200 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5, 201 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6, 202 }; 203 204 /** 205 * struct ieee80211_rate - bitrate definition 206 * 207 * This structure describes a bitrate that an 802.11 PHY can 208 * operate with. The two values @hw_value and @hw_value_short 209 * are only for driver use when pointers to this structure are 210 * passed around. 211 * 212 * @flags: rate-specific flags 213 * @bitrate: bitrate in units of 100 Kbps 214 * @hw_value: driver/hardware value for this rate 215 * @hw_value_short: driver/hardware value for this rate when 216 * short preamble is used 217 */ 218 struct ieee80211_rate { 219 u32 flags; 220 u16 bitrate; 221 u16 hw_value, hw_value_short; 222 }; 223 224 /** 225 * struct ieee80211_sta_ht_cap - STA's HT capabilities 226 * 227 * This structure describes most essential parameters needed 228 * to describe 802.11n HT capabilities for an STA. 229 * 230 * @ht_supported: is HT supported by the STA 231 * @cap: HT capabilities map as described in 802.11n spec 232 * @ampdu_factor: Maximum A-MPDU length factor 233 * @ampdu_density: Minimum A-MPDU spacing 234 * @mcs: Supported MCS rates 235 */ 236 struct ieee80211_sta_ht_cap { 237 u16 cap; /* use IEEE80211_HT_CAP_ */ 238 bool ht_supported; 239 u8 ampdu_factor; 240 u8 ampdu_density; 241 struct ieee80211_mcs_info mcs; 242 }; 243 244 /** 245 * struct ieee80211_sta_vht_cap - STA's VHT capabilities 246 * 247 * This structure describes most essential parameters needed 248 * to describe 802.11ac VHT capabilities for an STA. 249 * 250 * @vht_supported: is VHT supported by the STA 251 * @cap: VHT capabilities map as described in 802.11ac spec 252 * @vht_mcs: Supported VHT MCS rates 253 */ 254 struct ieee80211_sta_vht_cap { 255 bool vht_supported; 256 u32 cap; /* use IEEE80211_VHT_CAP_ */ 257 struct ieee80211_vht_mcs_info vht_mcs; 258 }; 259 260 /** 261 * struct ieee80211_supported_band - frequency band definition 262 * 263 * This structure describes a frequency band a wiphy 264 * is able to operate in. 265 * 266 * @channels: Array of channels the hardware can operate in 267 * in this band. 268 * @band: the band this structure represents 269 * @n_channels: Number of channels in @channels 270 * @bitrates: Array of bitrates the hardware can operate with 271 * in this band. Must be sorted to give a valid "supported 272 * rates" IE, i.e. CCK rates first, then OFDM. 273 * @n_bitrates: Number of bitrates in @bitrates 274 * @ht_cap: HT capabilities in this band 275 * @vht_cap: VHT capabilities in this band 276 */ 277 struct ieee80211_supported_band { 278 struct ieee80211_channel *channels; 279 struct ieee80211_rate *bitrates; 280 enum ieee80211_band band; 281 int n_channels; 282 int n_bitrates; 283 struct ieee80211_sta_ht_cap ht_cap; 284 struct ieee80211_sta_vht_cap vht_cap; 285 }; 286 287 /* 288 * Wireless hardware/device configuration structures and methods 289 */ 290 291 /** 292 * DOC: Actions and configuration 293 * 294 * Each wireless device and each virtual interface offer a set of configuration 295 * operations and other actions that are invoked by userspace. Each of these 296 * actions is described in the operations structure, and the parameters these 297 * operations use are described separately. 298 * 299 * Additionally, some operations are asynchronous and expect to get status 300 * information via some functions that drivers need to call. 301 * 302 * Scanning and BSS list handling with its associated functionality is described 303 * in a separate chapter. 304 */ 305 306 /** 307 * struct vif_params - describes virtual interface parameters 308 * @use_4addr: use 4-address frames 309 * @macaddr: address to use for this virtual interface. This will only 310 * be used for non-netdevice interfaces. If this parameter is set 311 * to zero address the driver may determine the address as needed. 312 */ 313 struct vif_params { 314 int use_4addr; 315 u8 macaddr[ETH_ALEN]; 316 }; 317 318 /** 319 * struct key_params - key information 320 * 321 * Information about a key 322 * 323 * @key: key material 324 * @key_len: length of key material 325 * @cipher: cipher suite selector 326 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 327 * with the get_key() callback, must be in little endian, 328 * length given by @seq_len. 329 * @seq_len: length of @seq. 330 */ 331 struct key_params { 332 u8 *key; 333 u8 *seq; 334 int key_len; 335 int seq_len; 336 u32 cipher; 337 }; 338 339 /** 340 * struct cfg80211_chan_def - channel definition 341 * @chan: the (control) channel 342 * @width: channel width 343 * @center_freq1: center frequency of first segment 344 * @center_freq2: center frequency of second segment 345 * (only with 80+80 MHz) 346 */ 347 struct cfg80211_chan_def { 348 struct ieee80211_channel *chan; 349 enum nl80211_chan_width width; 350 u32 center_freq1; 351 u32 center_freq2; 352 }; 353 354 /** 355 * cfg80211_get_chandef_type - return old channel type from chandef 356 * @chandef: the channel definition 357 * 358 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given 359 * chandef, which must have a bandwidth allowing this conversion. 360 */ 361 static inline enum nl80211_channel_type 362 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef) 363 { 364 switch (chandef->width) { 365 case NL80211_CHAN_WIDTH_20_NOHT: 366 return NL80211_CHAN_NO_HT; 367 case NL80211_CHAN_WIDTH_20: 368 return NL80211_CHAN_HT20; 369 case NL80211_CHAN_WIDTH_40: 370 if (chandef->center_freq1 > chandef->chan->center_freq) 371 return NL80211_CHAN_HT40PLUS; 372 return NL80211_CHAN_HT40MINUS; 373 default: 374 WARN_ON(1); 375 return NL80211_CHAN_NO_HT; 376 } 377 } 378 379 /** 380 * cfg80211_chandef_create - create channel definition using channel type 381 * @chandef: the channel definition struct to fill 382 * @channel: the control channel 383 * @chantype: the channel type 384 * 385 * Given a channel type, create a channel definition. 386 */ 387 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, 388 struct ieee80211_channel *channel, 389 enum nl80211_channel_type chantype); 390 391 /** 392 * cfg80211_chandef_identical - check if two channel definitions are identical 393 * @chandef1: first channel definition 394 * @chandef2: second channel definition 395 * 396 * Return: %true if the channels defined by the channel definitions are 397 * identical, %false otherwise. 398 */ 399 static inline bool 400 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1, 401 const struct cfg80211_chan_def *chandef2) 402 { 403 return (chandef1->chan == chandef2->chan && 404 chandef1->width == chandef2->width && 405 chandef1->center_freq1 == chandef2->center_freq1 && 406 chandef1->center_freq2 == chandef2->center_freq2); 407 } 408 409 /** 410 * cfg80211_chandef_compatible - check if two channel definitions are compatible 411 * @chandef1: first channel definition 412 * @chandef2: second channel definition 413 * 414 * Return: %NULL if the given channel definitions are incompatible, 415 * chandef1 or chandef2 otherwise. 416 */ 417 const struct cfg80211_chan_def * 418 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, 419 const struct cfg80211_chan_def *chandef2); 420 421 /** 422 * cfg80211_chandef_valid - check if a channel definition is valid 423 * @chandef: the channel definition to check 424 * Return: %true if the channel definition is valid. %false otherwise. 425 */ 426 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef); 427 428 /** 429 * cfg80211_chandef_usable - check if secondary channels can be used 430 * @wiphy: the wiphy to validate against 431 * @chandef: the channel definition to check 432 * @prohibited_flags: the regulatory channel flags that must not be set 433 * Return: %true if secondary channels are usable. %false otherwise. 434 */ 435 bool cfg80211_chandef_usable(struct wiphy *wiphy, 436 const struct cfg80211_chan_def *chandef, 437 u32 prohibited_flags); 438 439 /** 440 * ieee80211_chandef_rate_flags - returns rate flags for a channel 441 * 442 * In some channel types, not all rates may be used - for example CCK 443 * rates may not be used in 5/10 MHz channels. 444 * 445 * @chandef: channel definition for the channel 446 * 447 * Returns: rate flags which apply for this channel 448 */ 449 static inline enum ieee80211_rate_flags 450 ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef) 451 { 452 switch (chandef->width) { 453 case NL80211_CHAN_WIDTH_5: 454 return IEEE80211_RATE_SUPPORTS_5MHZ; 455 case NL80211_CHAN_WIDTH_10: 456 return IEEE80211_RATE_SUPPORTS_10MHZ; 457 default: 458 break; 459 } 460 return 0; 461 } 462 463 /** 464 * enum survey_info_flags - survey information flags 465 * 466 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 467 * @SURVEY_INFO_IN_USE: channel is currently being used 468 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in 469 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in 470 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in 471 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in 472 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in 473 * 474 * Used by the driver to indicate which info in &struct survey_info 475 * it has filled in during the get_survey(). 476 */ 477 enum survey_info_flags { 478 SURVEY_INFO_NOISE_DBM = 1<<0, 479 SURVEY_INFO_IN_USE = 1<<1, 480 SURVEY_INFO_CHANNEL_TIME = 1<<2, 481 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, 482 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, 483 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, 484 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, 485 }; 486 487 /** 488 * struct survey_info - channel survey response 489 * 490 * @channel: the channel this survey record reports, mandatory 491 * @filled: bitflag of flags from &enum survey_info_flags 492 * @noise: channel noise in dBm. This and all following fields are 493 * optional 494 * @channel_time: amount of time in ms the radio spent on the channel 495 * @channel_time_busy: amount of time the primary channel was sensed busy 496 * @channel_time_ext_busy: amount of time the extension channel was sensed busy 497 * @channel_time_rx: amount of time the radio spent receiving data 498 * @channel_time_tx: amount of time the radio spent transmitting data 499 * 500 * Used by dump_survey() to report back per-channel survey information. 501 * 502 * This structure can later be expanded with things like 503 * channel duty cycle etc. 504 */ 505 struct survey_info { 506 struct ieee80211_channel *channel; 507 u64 channel_time; 508 u64 channel_time_busy; 509 u64 channel_time_ext_busy; 510 u64 channel_time_rx; 511 u64 channel_time_tx; 512 u32 filled; 513 s8 noise; 514 }; 515 516 /** 517 * struct cfg80211_crypto_settings - Crypto settings 518 * @wpa_versions: indicates which, if any, WPA versions are enabled 519 * (from enum nl80211_wpa_versions) 520 * @cipher_group: group key cipher suite (or 0 if unset) 521 * @n_ciphers_pairwise: number of AP supported unicast ciphers 522 * @ciphers_pairwise: unicast key cipher suites 523 * @n_akm_suites: number of AKM suites 524 * @akm_suites: AKM suites 525 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 526 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 527 * required to assume that the port is unauthorized until authorized by 528 * user space. Otherwise, port is marked authorized by default. 529 * @control_port_ethertype: the control port protocol that should be 530 * allowed through even on unauthorized ports 531 * @control_port_no_encrypt: TRUE to prevent encryption of control port 532 * protocol frames. 533 */ 534 struct cfg80211_crypto_settings { 535 u32 wpa_versions; 536 u32 cipher_group; 537 int n_ciphers_pairwise; 538 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 539 int n_akm_suites; 540 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 541 bool control_port; 542 __be16 control_port_ethertype; 543 bool control_port_no_encrypt; 544 }; 545 546 /** 547 * struct cfg80211_beacon_data - beacon data 548 * @head: head portion of beacon (before TIM IE) 549 * or %NULL if not changed 550 * @tail: tail portion of beacon (after TIM IE) 551 * or %NULL if not changed 552 * @head_len: length of @head 553 * @tail_len: length of @tail 554 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL 555 * @beacon_ies_len: length of beacon_ies in octets 556 * @proberesp_ies: extra information element(s) to add into Probe Response 557 * frames or %NULL 558 * @proberesp_ies_len: length of proberesp_ies in octets 559 * @assocresp_ies: extra information element(s) to add into (Re)Association 560 * Response frames or %NULL 561 * @assocresp_ies_len: length of assocresp_ies in octets 562 * @probe_resp_len: length of probe response template (@probe_resp) 563 * @probe_resp: probe response template (AP mode only) 564 */ 565 struct cfg80211_beacon_data { 566 const u8 *head, *tail; 567 const u8 *beacon_ies; 568 const u8 *proberesp_ies; 569 const u8 *assocresp_ies; 570 const u8 *probe_resp; 571 572 size_t head_len, tail_len; 573 size_t beacon_ies_len; 574 size_t proberesp_ies_len; 575 size_t assocresp_ies_len; 576 size_t probe_resp_len; 577 }; 578 579 struct mac_address { 580 u8 addr[ETH_ALEN]; 581 }; 582 583 /** 584 * struct cfg80211_acl_data - Access control list data 585 * 586 * @acl_policy: ACL policy to be applied on the station's 587 * entry specified by mac_addr 588 * @n_acl_entries: Number of MAC address entries passed 589 * @mac_addrs: List of MAC addresses of stations to be used for ACL 590 */ 591 struct cfg80211_acl_data { 592 enum nl80211_acl_policy acl_policy; 593 int n_acl_entries; 594 595 /* Keep it last */ 596 struct mac_address mac_addrs[]; 597 }; 598 599 /** 600 * struct cfg80211_ap_settings - AP configuration 601 * 602 * Used to configure an AP interface. 603 * 604 * @chandef: defines the channel to use 605 * @beacon: beacon data 606 * @beacon_interval: beacon interval 607 * @dtim_period: DTIM period 608 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from 609 * user space) 610 * @ssid_len: length of @ssid 611 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames 612 * @crypto: crypto settings 613 * @privacy: the BSS uses privacy 614 * @auth_type: Authentication type (algorithm) 615 * @inactivity_timeout: time in seconds to determine station's inactivity. 616 * @p2p_ctwindow: P2P CT Window 617 * @p2p_opp_ps: P2P opportunistic PS 618 * @acl: ACL configuration used by the drivers which has support for 619 * MAC address based access control 620 * @radar_required: set if radar detection is required 621 */ 622 struct cfg80211_ap_settings { 623 struct cfg80211_chan_def chandef; 624 625 struct cfg80211_beacon_data beacon; 626 627 int beacon_interval, dtim_period; 628 const u8 *ssid; 629 size_t ssid_len; 630 enum nl80211_hidden_ssid hidden_ssid; 631 struct cfg80211_crypto_settings crypto; 632 bool privacy; 633 enum nl80211_auth_type auth_type; 634 int inactivity_timeout; 635 u8 p2p_ctwindow; 636 bool p2p_opp_ps; 637 const struct cfg80211_acl_data *acl; 638 bool radar_required; 639 }; 640 641 /** 642 * enum station_parameters_apply_mask - station parameter values to apply 643 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) 644 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability 645 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state 646 * 647 * Not all station parameters have in-band "no change" signalling, 648 * for those that don't these flags will are used. 649 */ 650 enum station_parameters_apply_mask { 651 STATION_PARAM_APPLY_UAPSD = BIT(0), 652 STATION_PARAM_APPLY_CAPABILITY = BIT(1), 653 STATION_PARAM_APPLY_PLINK_STATE = BIT(2), 654 }; 655 656 /** 657 * struct station_parameters - station parameters 658 * 659 * Used to change and create a new station. 660 * 661 * @vlan: vlan interface station should belong to 662 * @supported_rates: supported rates in IEEE 802.11 format 663 * (or NULL for no change) 664 * @supported_rates_len: number of supported rates 665 * @sta_flags_mask: station flags that changed 666 * (bitmask of BIT(NL80211_STA_FLAG_...)) 667 * @sta_flags_set: station flags values 668 * (bitmask of BIT(NL80211_STA_FLAG_...)) 669 * @listen_interval: listen interval or -1 for no change 670 * @aid: AID or zero for no change 671 * @plink_action: plink action to take 672 * @plink_state: set the peer link state for a station 673 * @ht_capa: HT capabilities of station 674 * @vht_capa: VHT capabilities of station 675 * @uapsd_queues: bitmap of queues configured for uapsd. same format 676 * as the AC bitmap in the QoS info field 677 * @max_sp: max Service Period. same format as the MAX_SP in the 678 * QoS info field (but already shifted down) 679 * @sta_modify_mask: bitmap indicating which parameters changed 680 * (for those that don't have a natural "no change" value), 681 * see &enum station_parameters_apply_mask 682 * @local_pm: local link-specific mesh power save mode (no change when set 683 * to unknown) 684 * @capability: station capability 685 * @ext_capab: extended capabilities of the station 686 * @ext_capab_len: number of extended capabilities 687 */ 688 struct station_parameters { 689 const u8 *supported_rates; 690 struct net_device *vlan; 691 u32 sta_flags_mask, sta_flags_set; 692 u32 sta_modify_mask; 693 int listen_interval; 694 u16 aid; 695 u8 supported_rates_len; 696 u8 plink_action; 697 u8 plink_state; 698 const struct ieee80211_ht_cap *ht_capa; 699 const struct ieee80211_vht_cap *vht_capa; 700 u8 uapsd_queues; 701 u8 max_sp; 702 enum nl80211_mesh_power_mode local_pm; 703 u16 capability; 704 const u8 *ext_capab; 705 u8 ext_capab_len; 706 }; 707 708 /** 709 * enum cfg80211_station_type - the type of station being modified 710 * @CFG80211_STA_AP_CLIENT: client of an AP interface 711 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has 712 * the AP MLME in the device 713 * @CFG80211_STA_AP_STA: AP station on managed interface 714 * @CFG80211_STA_IBSS: IBSS station 715 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry 716 * while TDLS setup is in progress, it moves out of this state when 717 * being marked authorized; use this only if TDLS with external setup is 718 * supported/used) 719 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active 720 * entry that is operating, has been marked authorized by userspace) 721 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed) 722 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed) 723 */ 724 enum cfg80211_station_type { 725 CFG80211_STA_AP_CLIENT, 726 CFG80211_STA_AP_MLME_CLIENT, 727 CFG80211_STA_AP_STA, 728 CFG80211_STA_IBSS, 729 CFG80211_STA_TDLS_PEER_SETUP, 730 CFG80211_STA_TDLS_PEER_ACTIVE, 731 CFG80211_STA_MESH_PEER_KERNEL, 732 CFG80211_STA_MESH_PEER_USER, 733 }; 734 735 /** 736 * cfg80211_check_station_change - validate parameter changes 737 * @wiphy: the wiphy this operates on 738 * @params: the new parameters for a station 739 * @statype: the type of station being modified 740 * 741 * Utility function for the @change_station driver method. Call this function 742 * with the appropriate station type looking up the station (and checking that 743 * it exists). It will verify whether the station change is acceptable, and if 744 * not will return an error code. Note that it may modify the parameters for 745 * backward compatibility reasons, so don't use them before calling this. 746 */ 747 int cfg80211_check_station_change(struct wiphy *wiphy, 748 struct station_parameters *params, 749 enum cfg80211_station_type statype); 750 751 /** 752 * enum station_info_flags - station information flags 753 * 754 * Used by the driver to indicate which info in &struct station_info 755 * it has filled in during get_station() or dump_station(). 756 * 757 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 758 * @STATION_INFO_RX_BYTES: @rx_bytes filled 759 * @STATION_INFO_TX_BYTES: @tx_bytes filled 760 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value 761 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value 762 * @STATION_INFO_LLID: @llid filled 763 * @STATION_INFO_PLID: @plid filled 764 * @STATION_INFO_PLINK_STATE: @plink_state filled 765 * @STATION_INFO_SIGNAL: @signal filled 766 * @STATION_INFO_TX_BITRATE: @txrate fields are filled 767 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 768 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value 769 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value 770 * @STATION_INFO_TX_RETRIES: @tx_retries filled 771 * @STATION_INFO_TX_FAILED: @tx_failed filled 772 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled 773 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled 774 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled 775 * @STATION_INFO_BSS_PARAM: @bss_param filled 776 * @STATION_INFO_CONNECTED_TIME: @connected_time filled 777 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled 778 * @STATION_INFO_STA_FLAGS: @sta_flags filled 779 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled 780 * @STATION_INFO_T_OFFSET: @t_offset filled 781 * @STATION_INFO_LOCAL_PM: @local_pm filled 782 * @STATION_INFO_PEER_PM: @peer_pm filled 783 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled 784 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled 785 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled 786 */ 787 enum station_info_flags { 788 STATION_INFO_INACTIVE_TIME = 1<<0, 789 STATION_INFO_RX_BYTES = 1<<1, 790 STATION_INFO_TX_BYTES = 1<<2, 791 STATION_INFO_LLID = 1<<3, 792 STATION_INFO_PLID = 1<<4, 793 STATION_INFO_PLINK_STATE = 1<<5, 794 STATION_INFO_SIGNAL = 1<<6, 795 STATION_INFO_TX_BITRATE = 1<<7, 796 STATION_INFO_RX_PACKETS = 1<<8, 797 STATION_INFO_TX_PACKETS = 1<<9, 798 STATION_INFO_TX_RETRIES = 1<<10, 799 STATION_INFO_TX_FAILED = 1<<11, 800 STATION_INFO_RX_DROP_MISC = 1<<12, 801 STATION_INFO_SIGNAL_AVG = 1<<13, 802 STATION_INFO_RX_BITRATE = 1<<14, 803 STATION_INFO_BSS_PARAM = 1<<15, 804 STATION_INFO_CONNECTED_TIME = 1<<16, 805 STATION_INFO_ASSOC_REQ_IES = 1<<17, 806 STATION_INFO_STA_FLAGS = 1<<18, 807 STATION_INFO_BEACON_LOSS_COUNT = 1<<19, 808 STATION_INFO_T_OFFSET = 1<<20, 809 STATION_INFO_LOCAL_PM = 1<<21, 810 STATION_INFO_PEER_PM = 1<<22, 811 STATION_INFO_NONPEER_PM = 1<<23, 812 STATION_INFO_RX_BYTES64 = 1<<24, 813 STATION_INFO_TX_BYTES64 = 1<<25, 814 STATION_INFO_CHAIN_SIGNAL = 1<<26, 815 STATION_INFO_CHAIN_SIGNAL_AVG = 1<<27, 816 }; 817 818 /** 819 * enum station_info_rate_flags - bitrate info flags 820 * 821 * Used by the driver to indicate the specific rate transmission 822 * type for 802.11n transmissions. 823 * 824 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS 825 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS 826 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission 827 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission 828 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission 829 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission 830 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 831 * @RATE_INFO_FLAGS_60G: 60GHz MCS 832 */ 833 enum rate_info_flags { 834 RATE_INFO_FLAGS_MCS = BIT(0), 835 RATE_INFO_FLAGS_VHT_MCS = BIT(1), 836 RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2), 837 RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3), 838 RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4), 839 RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5), 840 RATE_INFO_FLAGS_SHORT_GI = BIT(6), 841 RATE_INFO_FLAGS_60G = BIT(7), 842 }; 843 844 /** 845 * struct rate_info - bitrate information 846 * 847 * Information about a receiving or transmitting bitrate 848 * 849 * @flags: bitflag of flags from &enum rate_info_flags 850 * @mcs: mcs index if struct describes a 802.11n bitrate 851 * @legacy: bitrate in 100kbit/s for 802.11abg 852 * @nss: number of streams (VHT only) 853 */ 854 struct rate_info { 855 u8 flags; 856 u8 mcs; 857 u16 legacy; 858 u8 nss; 859 }; 860 861 /** 862 * enum station_info_rate_flags - bitrate info flags 863 * 864 * Used by the driver to indicate the specific rate transmission 865 * type for 802.11n transmissions. 866 * 867 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 868 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 869 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 870 */ 871 enum bss_param_flags { 872 BSS_PARAM_FLAGS_CTS_PROT = 1<<0, 873 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, 874 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, 875 }; 876 877 /** 878 * struct sta_bss_parameters - BSS parameters for the attached station 879 * 880 * Information about the currently associated BSS 881 * 882 * @flags: bitflag of flags from &enum bss_param_flags 883 * @dtim_period: DTIM period for the BSS 884 * @beacon_interval: beacon interval 885 */ 886 struct sta_bss_parameters { 887 u8 flags; 888 u8 dtim_period; 889 u16 beacon_interval; 890 }; 891 892 #define IEEE80211_MAX_CHAINS 4 893 894 /** 895 * struct station_info - station information 896 * 897 * Station information filled by driver for get_station() and dump_station. 898 * 899 * @filled: bitflag of flags from &enum station_info_flags 900 * @connected_time: time(in secs) since a station is last connected 901 * @inactive_time: time since last station activity (tx/rx) in milliseconds 902 * @rx_bytes: bytes received from this station 903 * @tx_bytes: bytes transmitted to this station 904 * @llid: mesh local link id 905 * @plid: mesh peer link id 906 * @plink_state: mesh peer link state 907 * @signal: The signal strength, type depends on the wiphy's signal_type. 908 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 909 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. 910 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 911 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg 912 * @chain_signal: per-chain signal strength of last received packet in dBm 913 * @chain_signal_avg: per-chain signal strength average in dBm 914 * @txrate: current unicast bitrate from this station 915 * @rxrate: current unicast bitrate to this station 916 * @rx_packets: packets received from this station 917 * @tx_packets: packets transmitted to this station 918 * @tx_retries: cumulative retry counts 919 * @tx_failed: number of failed transmissions (retries exceeded, no ACK) 920 * @rx_dropped_misc: Dropped for un-specified reason. 921 * @bss_param: current BSS parameters 922 * @generation: generation number for nl80211 dumps. 923 * This number should increase every time the list of stations 924 * changes, i.e. when a station is added or removed, so that 925 * userspace can tell whether it got a consistent snapshot. 926 * @assoc_req_ies: IEs from (Re)Association Request. 927 * This is used only when in AP mode with drivers that do not use 928 * user space MLME/SME implementation. The information is provided for 929 * the cfg80211_new_sta() calls to notify user space of the IEs. 930 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. 931 * @sta_flags: station flags mask & values 932 * @beacon_loss_count: Number of times beacon loss event has triggered. 933 * @t_offset: Time offset of the station relative to this host. 934 * @local_pm: local mesh STA power save mode 935 * @peer_pm: peer mesh STA power save mode 936 * @nonpeer_pm: non-peer mesh STA power save mode 937 */ 938 struct station_info { 939 u32 filled; 940 u32 connected_time; 941 u32 inactive_time; 942 u64 rx_bytes; 943 u64 tx_bytes; 944 u16 llid; 945 u16 plid; 946 u8 plink_state; 947 s8 signal; 948 s8 signal_avg; 949 950 u8 chains; 951 s8 chain_signal[IEEE80211_MAX_CHAINS]; 952 s8 chain_signal_avg[IEEE80211_MAX_CHAINS]; 953 954 struct rate_info txrate; 955 struct rate_info rxrate; 956 u32 rx_packets; 957 u32 tx_packets; 958 u32 tx_retries; 959 u32 tx_failed; 960 u32 rx_dropped_misc; 961 struct sta_bss_parameters bss_param; 962 struct nl80211_sta_flag_update sta_flags; 963 964 int generation; 965 966 const u8 *assoc_req_ies; 967 size_t assoc_req_ies_len; 968 969 u32 beacon_loss_count; 970 s64 t_offset; 971 enum nl80211_mesh_power_mode local_pm; 972 enum nl80211_mesh_power_mode peer_pm; 973 enum nl80211_mesh_power_mode nonpeer_pm; 974 975 /* 976 * Note: Add a new enum station_info_flags value for each new field and 977 * use it to check which fields are initialized. 978 */ 979 }; 980 981 /** 982 * enum monitor_flags - monitor flags 983 * 984 * Monitor interface configuration flags. Note that these must be the bits 985 * according to the nl80211 flags. 986 * 987 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 988 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 989 * @MONITOR_FLAG_CONTROL: pass control frames 990 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 991 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 992 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address 993 */ 994 enum monitor_flags { 995 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 996 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 997 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 998 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 999 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 1000 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE, 1001 }; 1002 1003 /** 1004 * enum mpath_info_flags - mesh path information flags 1005 * 1006 * Used by the driver to indicate which info in &struct mpath_info it has filled 1007 * in during get_station() or dump_station(). 1008 * 1009 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 1010 * @MPATH_INFO_SN: @sn filled 1011 * @MPATH_INFO_METRIC: @metric filled 1012 * @MPATH_INFO_EXPTIME: @exptime filled 1013 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 1014 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 1015 * @MPATH_INFO_FLAGS: @flags filled 1016 */ 1017 enum mpath_info_flags { 1018 MPATH_INFO_FRAME_QLEN = BIT(0), 1019 MPATH_INFO_SN = BIT(1), 1020 MPATH_INFO_METRIC = BIT(2), 1021 MPATH_INFO_EXPTIME = BIT(3), 1022 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 1023 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 1024 MPATH_INFO_FLAGS = BIT(6), 1025 }; 1026 1027 /** 1028 * struct mpath_info - mesh path information 1029 * 1030 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 1031 * 1032 * @filled: bitfield of flags from &enum mpath_info_flags 1033 * @frame_qlen: number of queued frames for this destination 1034 * @sn: target sequence number 1035 * @metric: metric (cost) of this mesh path 1036 * @exptime: expiration time for the mesh path from now, in msecs 1037 * @flags: mesh path flags 1038 * @discovery_timeout: total mesh path discovery timeout, in msecs 1039 * @discovery_retries: mesh path discovery retries 1040 * @generation: generation number for nl80211 dumps. 1041 * This number should increase every time the list of mesh paths 1042 * changes, i.e. when a station is added or removed, so that 1043 * userspace can tell whether it got a consistent snapshot. 1044 */ 1045 struct mpath_info { 1046 u32 filled; 1047 u32 frame_qlen; 1048 u32 sn; 1049 u32 metric; 1050 u32 exptime; 1051 u32 discovery_timeout; 1052 u8 discovery_retries; 1053 u8 flags; 1054 1055 int generation; 1056 }; 1057 1058 /** 1059 * struct bss_parameters - BSS parameters 1060 * 1061 * Used to change BSS parameters (mainly for AP mode). 1062 * 1063 * @use_cts_prot: Whether to use CTS protection 1064 * (0 = no, 1 = yes, -1 = do not change) 1065 * @use_short_preamble: Whether the use of short preambles is allowed 1066 * (0 = no, 1 = yes, -1 = do not change) 1067 * @use_short_slot_time: Whether the use of short slot time is allowed 1068 * (0 = no, 1 = yes, -1 = do not change) 1069 * @basic_rates: basic rates in IEEE 802.11 format 1070 * (or NULL for no change) 1071 * @basic_rates_len: number of basic rates 1072 * @ap_isolate: do not forward packets between connected stations 1073 * @ht_opmode: HT Operation mode 1074 * (u16 = opmode, -1 = do not change) 1075 * @p2p_ctwindow: P2P CT Window (-1 = no change) 1076 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change) 1077 */ 1078 struct bss_parameters { 1079 int use_cts_prot; 1080 int use_short_preamble; 1081 int use_short_slot_time; 1082 u8 *basic_rates; 1083 u8 basic_rates_len; 1084 int ap_isolate; 1085 int ht_opmode; 1086 s8 p2p_ctwindow, p2p_opp_ps; 1087 }; 1088 1089 /** 1090 * struct mesh_config - 802.11s mesh configuration 1091 * 1092 * These parameters can be changed while the mesh is active. 1093 * 1094 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used 1095 * by the Mesh Peering Open message 1096 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units 1097 * used by the Mesh Peering Open message 1098 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by 1099 * the mesh peering management to close a mesh peering 1100 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this 1101 * mesh interface 1102 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can 1103 * be sent to establish a new peer link instance in a mesh 1104 * @dot11MeshTTL: the value of TTL field set at a source mesh STA 1105 * @element_ttl: the value of TTL field set at a mesh STA for path selection 1106 * elements 1107 * @auto_open_plinks: whether we should automatically open peer links when we 1108 * detect compatible mesh peers 1109 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to 1110 * synchronize to for 11s default synchronization method 1111 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ 1112 * that an originator mesh STA can send to a particular path target 1113 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds 1114 * @min_discovery_timeout: the minimum length of time to wait until giving up on 1115 * a path discovery in milliseconds 1116 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs 1117 * receiving a PREQ shall consider the forwarding information from the 1118 * root to be valid. (TU = time unit) 1119 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during 1120 * which a mesh STA can send only one action frame containing a PREQ 1121 * element 1122 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during 1123 * which a mesh STA can send only one Action frame containing a PERR 1124 * element 1125 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that 1126 * it takes for an HWMP information element to propagate across the mesh 1127 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA 1128 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root 1129 * announcements are transmitted 1130 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh 1131 * station has access to a broader network beyond the MBSS. (This is 1132 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true 1133 * only means that the station will announce others it's a mesh gate, but 1134 * not necessarily using the gate announcement protocol. Still keeping the 1135 * same nomenclature to be in sync with the spec) 1136 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding 1137 * entity (default is TRUE - forwarding entity) 1138 * @rssi_threshold: the threshold for average signal strength of candidate 1139 * station to establish a peer link 1140 * @ht_opmode: mesh HT protection mode 1141 * 1142 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs 1143 * receiving a proactive PREQ shall consider the forwarding information to 1144 * the root mesh STA to be valid. 1145 * 1146 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive 1147 * PREQs are transmitted. 1148 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) 1149 * during which a mesh STA can send only one Action frame containing 1150 * a PREQ element for root path confirmation. 1151 * @power_mode: The default mesh power save mode which will be the initial 1152 * setting for new peer links. 1153 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake 1154 * after transmitting its beacon. 1155 * @plink_timeout: If no tx activity is seen from a STA we've established 1156 * peering with for longer than this time (in seconds), then remove it 1157 * from the STA's list of peers. Default is 30 minutes. 1158 */ 1159 struct mesh_config { 1160 u16 dot11MeshRetryTimeout; 1161 u16 dot11MeshConfirmTimeout; 1162 u16 dot11MeshHoldingTimeout; 1163 u16 dot11MeshMaxPeerLinks; 1164 u8 dot11MeshMaxRetries; 1165 u8 dot11MeshTTL; 1166 u8 element_ttl; 1167 bool auto_open_plinks; 1168 u32 dot11MeshNbrOffsetMaxNeighbor; 1169 u8 dot11MeshHWMPmaxPREQretries; 1170 u32 path_refresh_time; 1171 u16 min_discovery_timeout; 1172 u32 dot11MeshHWMPactivePathTimeout; 1173 u16 dot11MeshHWMPpreqMinInterval; 1174 u16 dot11MeshHWMPperrMinInterval; 1175 u16 dot11MeshHWMPnetDiameterTraversalTime; 1176 u8 dot11MeshHWMPRootMode; 1177 u16 dot11MeshHWMPRannInterval; 1178 bool dot11MeshGateAnnouncementProtocol; 1179 bool dot11MeshForwarding; 1180 s32 rssi_threshold; 1181 u16 ht_opmode; 1182 u32 dot11MeshHWMPactivePathToRootTimeout; 1183 u16 dot11MeshHWMProotInterval; 1184 u16 dot11MeshHWMPconfirmationInterval; 1185 enum nl80211_mesh_power_mode power_mode; 1186 u16 dot11MeshAwakeWindowDuration; 1187 u32 plink_timeout; 1188 }; 1189 1190 /** 1191 * struct mesh_setup - 802.11s mesh setup configuration 1192 * @chandef: defines the channel to use 1193 * @mesh_id: the mesh ID 1194 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 1195 * @sync_method: which synchronization method to use 1196 * @path_sel_proto: which path selection protocol to use 1197 * @path_metric: which metric to use 1198 * @auth_id: which authentication method this mesh is using 1199 * @ie: vendor information elements (optional) 1200 * @ie_len: length of vendor information elements 1201 * @is_authenticated: this mesh requires authentication 1202 * @is_secure: this mesh uses security 1203 * @user_mpm: userspace handles all MPM functions 1204 * @dtim_period: DTIM period to use 1205 * @beacon_interval: beacon interval to use 1206 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a] 1207 * @basic_rates: basic rates to use when creating the mesh 1208 * 1209 * These parameters are fixed when the mesh is created. 1210 */ 1211 struct mesh_setup { 1212 struct cfg80211_chan_def chandef; 1213 const u8 *mesh_id; 1214 u8 mesh_id_len; 1215 u8 sync_method; 1216 u8 path_sel_proto; 1217 u8 path_metric; 1218 u8 auth_id; 1219 const u8 *ie; 1220 u8 ie_len; 1221 bool is_authenticated; 1222 bool is_secure; 1223 bool user_mpm; 1224 u8 dtim_period; 1225 u16 beacon_interval; 1226 int mcast_rate[IEEE80211_NUM_BANDS]; 1227 u32 basic_rates; 1228 }; 1229 1230 /** 1231 * struct ieee80211_txq_params - TX queue parameters 1232 * @ac: AC identifier 1233 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 1234 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 1235 * 1..32767] 1236 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 1237 * 1..32767] 1238 * @aifs: Arbitration interframe space [0..255] 1239 */ 1240 struct ieee80211_txq_params { 1241 enum nl80211_ac ac; 1242 u16 txop; 1243 u16 cwmin; 1244 u16 cwmax; 1245 u8 aifs; 1246 }; 1247 1248 /** 1249 * DOC: Scanning and BSS list handling 1250 * 1251 * The scanning process itself is fairly simple, but cfg80211 offers quite 1252 * a bit of helper functionality. To start a scan, the scan operation will 1253 * be invoked with a scan definition. This scan definition contains the 1254 * channels to scan, and the SSIDs to send probe requests for (including the 1255 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 1256 * probe. Additionally, a scan request may contain extra information elements 1257 * that should be added to the probe request. The IEs are guaranteed to be 1258 * well-formed, and will not exceed the maximum length the driver advertised 1259 * in the wiphy structure. 1260 * 1261 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 1262 * it is responsible for maintaining the BSS list; the driver should not 1263 * maintain a list itself. For this notification, various functions exist. 1264 * 1265 * Since drivers do not maintain a BSS list, there are also a number of 1266 * functions to search for a BSS and obtain information about it from the 1267 * BSS structure cfg80211 maintains. The BSS list is also made available 1268 * to userspace. 1269 */ 1270 1271 /** 1272 * struct cfg80211_ssid - SSID description 1273 * @ssid: the SSID 1274 * @ssid_len: length of the ssid 1275 */ 1276 struct cfg80211_ssid { 1277 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1278 u8 ssid_len; 1279 }; 1280 1281 /** 1282 * struct cfg80211_scan_request - scan request description 1283 * 1284 * @ssids: SSIDs to scan for (active scan only) 1285 * @n_ssids: number of SSIDs 1286 * @channels: channels to scan on. 1287 * @n_channels: total number of channels to scan 1288 * @ie: optional information element(s) to add into Probe Request or %NULL 1289 * @ie_len: length of ie in octets 1290 * @flags: bit field of flags controlling operation 1291 * @rates: bitmap of rates to advertise for each band 1292 * @wiphy: the wiphy this was for 1293 * @scan_start: time (in jiffies) when the scan started 1294 * @wdev: the wireless device to scan for 1295 * @aborted: (internal) scan request was notified as aborted 1296 * @notified: (internal) scan request was notified as done or aborted 1297 * @no_cck: used to send probe requests at non CCK rate in 2GHz band 1298 */ 1299 struct cfg80211_scan_request { 1300 struct cfg80211_ssid *ssids; 1301 int n_ssids; 1302 u32 n_channels; 1303 const u8 *ie; 1304 size_t ie_len; 1305 u32 flags; 1306 1307 u32 rates[IEEE80211_NUM_BANDS]; 1308 1309 struct wireless_dev *wdev; 1310 1311 /* internal */ 1312 struct wiphy *wiphy; 1313 unsigned long scan_start; 1314 bool aborted, notified; 1315 bool no_cck; 1316 1317 /* keep last */ 1318 struct ieee80211_channel *channels[0]; 1319 }; 1320 1321 /** 1322 * struct cfg80211_match_set - sets of attributes to match 1323 * 1324 * @ssid: SSID to be matched 1325 */ 1326 struct cfg80211_match_set { 1327 struct cfg80211_ssid ssid; 1328 }; 1329 1330 /** 1331 * struct cfg80211_sched_scan_request - scheduled scan request description 1332 * 1333 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 1334 * @n_ssids: number of SSIDs 1335 * @n_channels: total number of channels to scan 1336 * @interval: interval between each scheduled scan cycle 1337 * @ie: optional information element(s) to add into Probe Request or %NULL 1338 * @ie_len: length of ie in octets 1339 * @flags: bit field of flags controlling operation 1340 * @match_sets: sets of parameters to be matched for a scan result 1341 * entry to be considered valid and to be passed to the host 1342 * (others are filtered out). 1343 * If ommited, all results are passed. 1344 * @n_match_sets: number of match sets 1345 * @wiphy: the wiphy this was for 1346 * @dev: the interface 1347 * @scan_start: start time of the scheduled scan 1348 * @channels: channels to scan 1349 * @rssi_thold: don't report scan results below this threshold (in s32 dBm) 1350 */ 1351 struct cfg80211_sched_scan_request { 1352 struct cfg80211_ssid *ssids; 1353 int n_ssids; 1354 u32 n_channels; 1355 u32 interval; 1356 const u8 *ie; 1357 size_t ie_len; 1358 u32 flags; 1359 struct cfg80211_match_set *match_sets; 1360 int n_match_sets; 1361 s32 rssi_thold; 1362 1363 /* internal */ 1364 struct wiphy *wiphy; 1365 struct net_device *dev; 1366 unsigned long scan_start; 1367 1368 /* keep last */ 1369 struct ieee80211_channel *channels[0]; 1370 }; 1371 1372 /** 1373 * enum cfg80211_signal_type - signal type 1374 * 1375 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 1376 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 1377 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 1378 */ 1379 enum cfg80211_signal_type { 1380 CFG80211_SIGNAL_TYPE_NONE, 1381 CFG80211_SIGNAL_TYPE_MBM, 1382 CFG80211_SIGNAL_TYPE_UNSPEC, 1383 }; 1384 1385 /** 1386 * struct cfg80211_bss_ie_data - BSS entry IE data 1387 * @tsf: TSF contained in the frame that carried these IEs 1388 * @rcu_head: internal use, for freeing 1389 * @len: length of the IEs 1390 * @data: IE data 1391 */ 1392 struct cfg80211_bss_ies { 1393 u64 tsf; 1394 struct rcu_head rcu_head; 1395 int len; 1396 u8 data[]; 1397 }; 1398 1399 /** 1400 * struct cfg80211_bss - BSS description 1401 * 1402 * This structure describes a BSS (which may also be a mesh network) 1403 * for use in scan results and similar. 1404 * 1405 * @channel: channel this BSS is on 1406 * @bssid: BSSID of the BSS 1407 * @beacon_interval: the beacon interval as from the frame 1408 * @capability: the capability field in host byte order 1409 * @ies: the information elements (Note that there is no guarantee that these 1410 * are well-formed!); this is a pointer to either the beacon_ies or 1411 * proberesp_ies depending on whether Probe Response frame has been 1412 * received. It is always non-%NULL. 1413 * @beacon_ies: the information elements from the last Beacon frame 1414 * (implementation note: if @hidden_beacon_bss is set this struct doesn't 1415 * own the beacon_ies, but they're just pointers to the ones from the 1416 * @hidden_beacon_bss struct) 1417 * @proberesp_ies: the information elements from the last Probe Response frame 1418 * @hidden_beacon_bss: in case this BSS struct represents a probe response from 1419 * a BSS that hides the SSID in its beacon, this points to the BSS struct 1420 * that holds the beacon data. @beacon_ies is still valid, of course, and 1421 * points to the same data as hidden_beacon_bss->beacon_ies in that case. 1422 * @signal: signal strength value (type depends on the wiphy's signal_type) 1423 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 1424 */ 1425 struct cfg80211_bss { 1426 struct ieee80211_channel *channel; 1427 1428 const struct cfg80211_bss_ies __rcu *ies; 1429 const struct cfg80211_bss_ies __rcu *beacon_ies; 1430 const struct cfg80211_bss_ies __rcu *proberesp_ies; 1431 1432 struct cfg80211_bss *hidden_beacon_bss; 1433 1434 s32 signal; 1435 1436 u16 beacon_interval; 1437 u16 capability; 1438 1439 u8 bssid[ETH_ALEN]; 1440 1441 u8 priv[0] __aligned(sizeof(void *)); 1442 }; 1443 1444 /** 1445 * ieee80211_bss_get_ie - find IE with given ID 1446 * @bss: the bss to search 1447 * @ie: the IE ID 1448 * 1449 * Note that the return value is an RCU-protected pointer, so 1450 * rcu_read_lock() must be held when calling this function. 1451 * Return: %NULL if not found. 1452 */ 1453 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 1454 1455 1456 /** 1457 * struct cfg80211_auth_request - Authentication request data 1458 * 1459 * This structure provides information needed to complete IEEE 802.11 1460 * authentication. 1461 * 1462 * @bss: The BSS to authenticate with, the callee must obtain a reference 1463 * to it if it needs to keep it. 1464 * @auth_type: Authentication type (algorithm) 1465 * @ie: Extra IEs to add to Authentication frame or %NULL 1466 * @ie_len: Length of ie buffer in octets 1467 * @key_len: length of WEP key for shared key authentication 1468 * @key_idx: index of WEP key for shared key authentication 1469 * @key: WEP key for shared key authentication 1470 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with 1471 * Authentication transaction sequence number field. 1472 * @sae_data_len: Length of sae_data buffer in octets 1473 */ 1474 struct cfg80211_auth_request { 1475 struct cfg80211_bss *bss; 1476 const u8 *ie; 1477 size_t ie_len; 1478 enum nl80211_auth_type auth_type; 1479 const u8 *key; 1480 u8 key_len, key_idx; 1481 const u8 *sae_data; 1482 size_t sae_data_len; 1483 }; 1484 1485 /** 1486 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. 1487 * 1488 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) 1489 * @ASSOC_REQ_DISABLE_VHT: Disable VHT 1490 */ 1491 enum cfg80211_assoc_req_flags { 1492 ASSOC_REQ_DISABLE_HT = BIT(0), 1493 ASSOC_REQ_DISABLE_VHT = BIT(1), 1494 }; 1495 1496 /** 1497 * struct cfg80211_assoc_request - (Re)Association request data 1498 * 1499 * This structure provides information needed to complete IEEE 802.11 1500 * (re)association. 1501 * @bss: The BSS to associate with. If the call is successful the driver is 1502 * given a reference that it must give back to cfg80211_send_rx_assoc() 1503 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new 1504 * association requests while already associating must be rejected. 1505 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 1506 * @ie_len: Length of ie buffer in octets 1507 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 1508 * @crypto: crypto settings 1509 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 1510 * @flags: See &enum cfg80211_assoc_req_flags 1511 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1512 * will be used in ht_capa. Un-supported values will be ignored. 1513 * @ht_capa_mask: The bits of ht_capa which are to be used. 1514 * @vht_capa: VHT capability override 1515 * @vht_capa_mask: VHT capability mask indicating which fields to use 1516 */ 1517 struct cfg80211_assoc_request { 1518 struct cfg80211_bss *bss; 1519 const u8 *ie, *prev_bssid; 1520 size_t ie_len; 1521 struct cfg80211_crypto_settings crypto; 1522 bool use_mfp; 1523 u32 flags; 1524 struct ieee80211_ht_cap ht_capa; 1525 struct ieee80211_ht_cap ht_capa_mask; 1526 struct ieee80211_vht_cap vht_capa, vht_capa_mask; 1527 }; 1528 1529 /** 1530 * struct cfg80211_deauth_request - Deauthentication request data 1531 * 1532 * This structure provides information needed to complete IEEE 802.11 1533 * deauthentication. 1534 * 1535 * @bssid: the BSSID of the BSS to deauthenticate from 1536 * @ie: Extra IEs to add to Deauthentication frame or %NULL 1537 * @ie_len: Length of ie buffer in octets 1538 * @reason_code: The reason code for the deauthentication 1539 * @local_state_change: if set, change local state only and 1540 * do not set a deauth frame 1541 */ 1542 struct cfg80211_deauth_request { 1543 const u8 *bssid; 1544 const u8 *ie; 1545 size_t ie_len; 1546 u16 reason_code; 1547 bool local_state_change; 1548 }; 1549 1550 /** 1551 * struct cfg80211_disassoc_request - Disassociation request data 1552 * 1553 * This structure provides information needed to complete IEEE 802.11 1554 * disassocation. 1555 * 1556 * @bss: the BSS to disassociate from 1557 * @ie: Extra IEs to add to Disassociation frame or %NULL 1558 * @ie_len: Length of ie buffer in octets 1559 * @reason_code: The reason code for the disassociation 1560 * @local_state_change: This is a request for a local state only, i.e., no 1561 * Disassociation frame is to be transmitted. 1562 */ 1563 struct cfg80211_disassoc_request { 1564 struct cfg80211_bss *bss; 1565 const u8 *ie; 1566 size_t ie_len; 1567 u16 reason_code; 1568 bool local_state_change; 1569 }; 1570 1571 /** 1572 * struct cfg80211_ibss_params - IBSS parameters 1573 * 1574 * This structure defines the IBSS parameters for the join_ibss() 1575 * method. 1576 * 1577 * @ssid: The SSID, will always be non-null. 1578 * @ssid_len: The length of the SSID, will always be non-zero. 1579 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1580 * search for IBSSs with a different BSSID. 1581 * @chandef: defines the channel to use if no other IBSS to join can be found 1582 * @channel_fixed: The channel should be fixed -- do not search for 1583 * IBSSs to join on other channels. 1584 * @ie: information element(s) to include in the beacon 1585 * @ie_len: length of that 1586 * @beacon_interval: beacon interval to use 1587 * @privacy: this is a protected network, keys will be configured 1588 * after joining 1589 * @control_port: whether user space controls IEEE 802.1X port, i.e., 1590 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 1591 * required to assume that the port is unauthorized until authorized by 1592 * user space. Otherwise, port is marked authorized by default. 1593 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1594 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1595 */ 1596 struct cfg80211_ibss_params { 1597 u8 *ssid; 1598 u8 *bssid; 1599 struct cfg80211_chan_def chandef; 1600 u8 *ie; 1601 u8 ssid_len, ie_len; 1602 u16 beacon_interval; 1603 u32 basic_rates; 1604 bool channel_fixed; 1605 bool privacy; 1606 bool control_port; 1607 int mcast_rate[IEEE80211_NUM_BANDS]; 1608 }; 1609 1610 /** 1611 * struct cfg80211_connect_params - Connection parameters 1612 * 1613 * This structure provides information needed to complete IEEE 802.11 1614 * authentication and association. 1615 * 1616 * @channel: The channel to use or %NULL if not specified (auto-select based 1617 * on scan results) 1618 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1619 * results) 1620 * @ssid: SSID 1621 * @ssid_len: Length of ssid in octets 1622 * @auth_type: Authentication type (algorithm) 1623 * @ie: IEs for association request 1624 * @ie_len: Length of assoc_ie in octets 1625 * @privacy: indicates whether privacy-enabled APs should be used 1626 * @mfp: indicate whether management frame protection is used 1627 * @crypto: crypto settings 1628 * @key_len: length of WEP key for shared key authentication 1629 * @key_idx: index of WEP key for shared key authentication 1630 * @key: WEP key for shared key authentication 1631 * @flags: See &enum cfg80211_assoc_req_flags 1632 * @bg_scan_period: Background scan period in seconds 1633 * or -1 to indicate that default value is to be used. 1634 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1635 * will be used in ht_capa. Un-supported values will be ignored. 1636 * @ht_capa_mask: The bits of ht_capa which are to be used. 1637 * @vht_capa: VHT Capability overrides 1638 * @vht_capa_mask: The bits of vht_capa which are to be used. 1639 */ 1640 struct cfg80211_connect_params { 1641 struct ieee80211_channel *channel; 1642 u8 *bssid; 1643 u8 *ssid; 1644 size_t ssid_len; 1645 enum nl80211_auth_type auth_type; 1646 u8 *ie; 1647 size_t ie_len; 1648 bool privacy; 1649 enum nl80211_mfp mfp; 1650 struct cfg80211_crypto_settings crypto; 1651 const u8 *key; 1652 u8 key_len, key_idx; 1653 u32 flags; 1654 int bg_scan_period; 1655 struct ieee80211_ht_cap ht_capa; 1656 struct ieee80211_ht_cap ht_capa_mask; 1657 struct ieee80211_vht_cap vht_capa; 1658 struct ieee80211_vht_cap vht_capa_mask; 1659 }; 1660 1661 /** 1662 * enum wiphy_params_flags - set_wiphy_params bitfield values 1663 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1664 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1665 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1666 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1667 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1668 */ 1669 enum wiphy_params_flags { 1670 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1671 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1672 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1673 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1674 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1675 }; 1676 1677 /* 1678 * cfg80211_bitrate_mask - masks for bitrate control 1679 */ 1680 struct cfg80211_bitrate_mask { 1681 struct { 1682 u32 legacy; 1683 u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; 1684 } control[IEEE80211_NUM_BANDS]; 1685 }; 1686 /** 1687 * struct cfg80211_pmksa - PMK Security Association 1688 * 1689 * This structure is passed to the set/del_pmksa() method for PMKSA 1690 * caching. 1691 * 1692 * @bssid: The AP's BSSID. 1693 * @pmkid: The PMK material itself. 1694 */ 1695 struct cfg80211_pmksa { 1696 u8 *bssid; 1697 u8 *pmkid; 1698 }; 1699 1700 /** 1701 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern 1702 * @mask: bitmask where to match pattern and where to ignore bytes, 1703 * one bit per byte, in same format as nl80211 1704 * @pattern: bytes to match where bitmask is 1 1705 * @pattern_len: length of pattern (in bytes) 1706 * @pkt_offset: packet offset (in bytes) 1707 * 1708 * Internal note: @mask and @pattern are allocated in one chunk of 1709 * memory, free @mask only! 1710 */ 1711 struct cfg80211_wowlan_trig_pkt_pattern { 1712 u8 *mask, *pattern; 1713 int pattern_len; 1714 int pkt_offset; 1715 }; 1716 1717 /** 1718 * struct cfg80211_wowlan_tcp - TCP connection parameters 1719 * 1720 * @sock: (internal) socket for source port allocation 1721 * @src: source IP address 1722 * @dst: destination IP address 1723 * @dst_mac: destination MAC address 1724 * @src_port: source port 1725 * @dst_port: destination port 1726 * @payload_len: data payload length 1727 * @payload: data payload buffer 1728 * @payload_seq: payload sequence stamping configuration 1729 * @data_interval: interval at which to send data packets 1730 * @wake_len: wakeup payload match length 1731 * @wake_data: wakeup payload match data 1732 * @wake_mask: wakeup payload match mask 1733 * @tokens_size: length of the tokens buffer 1734 * @payload_tok: payload token usage configuration 1735 */ 1736 struct cfg80211_wowlan_tcp { 1737 struct socket *sock; 1738 __be32 src, dst; 1739 u16 src_port, dst_port; 1740 u8 dst_mac[ETH_ALEN]; 1741 int payload_len; 1742 const u8 *payload; 1743 struct nl80211_wowlan_tcp_data_seq payload_seq; 1744 u32 data_interval; 1745 u32 wake_len; 1746 const u8 *wake_data, *wake_mask; 1747 u32 tokens_size; 1748 /* must be last, variable member */ 1749 struct nl80211_wowlan_tcp_data_token payload_tok; 1750 }; 1751 1752 /** 1753 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1754 * 1755 * This structure defines the enabled WoWLAN triggers for the device. 1756 * @any: wake up on any activity -- special trigger if device continues 1757 * operating as normal during suspend 1758 * @disconnect: wake up if getting disconnected 1759 * @magic_pkt: wake up on receiving magic packet 1760 * @patterns: wake up on receiving packet matching a pattern 1761 * @n_patterns: number of patterns 1762 * @gtk_rekey_failure: wake up on GTK rekey failure 1763 * @eap_identity_req: wake up on EAP identity request packet 1764 * @four_way_handshake: wake up on 4-way handshake 1765 * @rfkill_release: wake up when rfkill is released 1766 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h. 1767 * NULL if not configured. 1768 */ 1769 struct cfg80211_wowlan { 1770 bool any, disconnect, magic_pkt, gtk_rekey_failure, 1771 eap_identity_req, four_way_handshake, 1772 rfkill_release; 1773 struct cfg80211_wowlan_trig_pkt_pattern *patterns; 1774 struct cfg80211_wowlan_tcp *tcp; 1775 int n_patterns; 1776 }; 1777 1778 /** 1779 * struct cfg80211_wowlan_wakeup - wakeup report 1780 * @disconnect: woke up by getting disconnected 1781 * @magic_pkt: woke up by receiving magic packet 1782 * @gtk_rekey_failure: woke up by GTK rekey failure 1783 * @eap_identity_req: woke up by EAP identity request packet 1784 * @four_way_handshake: woke up by 4-way handshake 1785 * @rfkill_release: woke up by rfkill being released 1786 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern 1787 * @packet_present_len: copied wakeup packet data 1788 * @packet_len: original wakeup packet length 1789 * @packet: The packet causing the wakeup, if any. 1790 * @packet_80211: For pattern match, magic packet and other data 1791 * frame triggers an 802.3 frame should be reported, for 1792 * disconnect due to deauth 802.11 frame. This indicates which 1793 * it is. 1794 * @tcp_match: TCP wakeup packet received 1795 * @tcp_connlost: TCP connection lost or failed to establish 1796 * @tcp_nomoretokens: TCP data ran out of tokens 1797 */ 1798 struct cfg80211_wowlan_wakeup { 1799 bool disconnect, magic_pkt, gtk_rekey_failure, 1800 eap_identity_req, four_way_handshake, 1801 rfkill_release, packet_80211, 1802 tcp_match, tcp_connlost, tcp_nomoretokens; 1803 s32 pattern_idx; 1804 u32 packet_present_len, packet_len; 1805 const void *packet; 1806 }; 1807 1808 /** 1809 * struct cfg80211_gtk_rekey_data - rekey data 1810 * @kek: key encryption key 1811 * @kck: key confirmation key 1812 * @replay_ctr: replay counter 1813 */ 1814 struct cfg80211_gtk_rekey_data { 1815 u8 kek[NL80211_KEK_LEN]; 1816 u8 kck[NL80211_KCK_LEN]; 1817 u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; 1818 }; 1819 1820 /** 1821 * struct cfg80211_update_ft_ies_params - FT IE Information 1822 * 1823 * This structure provides information needed to update the fast transition IE 1824 * 1825 * @md: The Mobility Domain ID, 2 Octet value 1826 * @ie: Fast Transition IEs 1827 * @ie_len: Length of ft_ie in octets 1828 */ 1829 struct cfg80211_update_ft_ies_params { 1830 u16 md; 1831 const u8 *ie; 1832 size_t ie_len; 1833 }; 1834 1835 /** 1836 * struct cfg80211_ops - backend description for wireless configuration 1837 * 1838 * This struct is registered by fullmac card drivers and/or wireless stacks 1839 * in order to handle configuration requests on their interfaces. 1840 * 1841 * All callbacks except where otherwise noted should return 0 1842 * on success or a negative error code. 1843 * 1844 * All operations are currently invoked under rtnl for consistency with the 1845 * wireless extensions but this is subject to reevaluation as soon as this 1846 * code is used more widely and we have a first user without wext. 1847 * 1848 * @suspend: wiphy device needs to be suspended. The variable @wow will 1849 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 1850 * configured for the device. 1851 * @resume: wiphy device needs to be resumed 1852 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback 1853 * to call device_set_wakeup_enable() to enable/disable wakeup from 1854 * the device. 1855 * 1856 * @add_virtual_intf: create a new virtual interface with the given name, 1857 * must set the struct wireless_dev's iftype. Beware: You must create 1858 * the new netdev in the wiphy's network namespace! Returns the struct 1859 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must 1860 * also set the address member in the wdev. 1861 * 1862 * @del_virtual_intf: remove the virtual interface 1863 * 1864 * @change_virtual_intf: change type/configuration of virtual interface, 1865 * keep the struct wireless_dev's iftype updated. 1866 * 1867 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 1868 * when adding a group key. 1869 * 1870 * @get_key: get information about the key with the given parameters. 1871 * @mac_addr will be %NULL when requesting information for a group 1872 * key. All pointers given to the @callback function need not be valid 1873 * after it returns. This function should return an error if it is 1874 * not possible to retrieve the key, -ENOENT if it doesn't exist. 1875 * 1876 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 1877 * and @key_index, return -ENOENT if the key doesn't exist. 1878 * 1879 * @set_default_key: set the default key on an interface 1880 * 1881 * @set_default_mgmt_key: set the default management frame key on an interface 1882 * 1883 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 1884 * 1885 * @start_ap: Start acting in AP mode defined by the parameters. 1886 * @change_beacon: Change the beacon parameters for an access point mode 1887 * interface. This should reject the call when AP mode wasn't started. 1888 * @stop_ap: Stop being an AP, including stopping beaconing. 1889 * 1890 * @add_station: Add a new station. 1891 * @del_station: Remove a station; @mac may be NULL to remove all stations. 1892 * @change_station: Modify a given station. Note that flags changes are not much 1893 * validated in cfg80211, in particular the auth/assoc/authorized flags 1894 * might come to the driver in invalid combinations -- make sure to check 1895 * them, also against the existing state! Drivers must call 1896 * cfg80211_check_station_change() to validate the information. 1897 * @get_station: get station information for the station identified by @mac 1898 * @dump_station: dump station callback -- resume dump at index @idx 1899 * 1900 * @add_mpath: add a fixed mesh path 1901 * @del_mpath: delete a given mesh path 1902 * @change_mpath: change a given mesh path 1903 * @get_mpath: get a mesh path for the given parameters 1904 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 1905 * @join_mesh: join the mesh network with the specified parameters 1906 * (invoked with the wireless_dev mutex held) 1907 * @leave_mesh: leave the current mesh network 1908 * (invoked with the wireless_dev mutex held) 1909 * 1910 * @get_mesh_config: Get the current mesh configuration 1911 * 1912 * @update_mesh_config: Update mesh parameters on a running mesh. 1913 * The mask is a bitfield which tells us which parameters to 1914 * set, and which to leave alone. 1915 * 1916 * @change_bss: Modify parameters for a given BSS. 1917 * 1918 * @set_txq_params: Set TX queue parameters 1919 * 1920 * @libertas_set_mesh_channel: Only for backward compatibility for libertas, 1921 * as it doesn't implement join_mesh and needs to set the channel to 1922 * join the mesh instead. 1923 * 1924 * @set_monitor_channel: Set the monitor mode channel for the device. If other 1925 * interfaces are active this callback should reject the configuration. 1926 * If no interfaces are active or the device is down, the channel should 1927 * be stored for when a monitor interface becomes active. 1928 * 1929 * @scan: Request to do a scan. If returning zero, the scan request is given 1930 * the driver, and will be valid until passed to cfg80211_scan_done(). 1931 * For scan results, call cfg80211_inform_bss(); you can call this outside 1932 * the scan/scan_done bracket too. 1933 * 1934 * @auth: Request to authenticate with the specified peer 1935 * (invoked with the wireless_dev mutex held) 1936 * @assoc: Request to (re)associate with the specified peer 1937 * (invoked with the wireless_dev mutex held) 1938 * @deauth: Request to deauthenticate from the specified peer 1939 * (invoked with the wireless_dev mutex held) 1940 * @disassoc: Request to disassociate from the specified peer 1941 * (invoked with the wireless_dev mutex held) 1942 * 1943 * @connect: Connect to the ESS with the specified parameters. When connected, 1944 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 1945 * If the connection fails for some reason, call cfg80211_connect_result() 1946 * with the status from the AP. 1947 * (invoked with the wireless_dev mutex held) 1948 * @disconnect: Disconnect from the BSS/ESS. 1949 * (invoked with the wireless_dev mutex held) 1950 * 1951 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 1952 * cfg80211_ibss_joined(), also call that function when changing BSSID due 1953 * to a merge. 1954 * (invoked with the wireless_dev mutex held) 1955 * @leave_ibss: Leave the IBSS. 1956 * (invoked with the wireless_dev mutex held) 1957 * 1958 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or 1959 * MESH mode) 1960 * 1961 * @set_wiphy_params: Notify that wiphy parameters have changed; 1962 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1963 * have changed. The actual parameter values are available in 1964 * struct wiphy. If returning an error, no value should be changed. 1965 * 1966 * @set_tx_power: set the transmit power according to the parameters, 1967 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The 1968 * wdev may be %NULL if power was set for the wiphy, and will 1969 * always be %NULL unless the driver supports per-vif TX power 1970 * (as advertised by the nl80211 feature flag.) 1971 * @get_tx_power: store the current TX power into the dbm variable; 1972 * return 0 if successful 1973 * 1974 * @set_wds_peer: set the WDS peer for a WDS interface 1975 * 1976 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1977 * functions to adjust rfkill hw state 1978 * 1979 * @dump_survey: get site survey information. 1980 * 1981 * @remain_on_channel: Request the driver to remain awake on the specified 1982 * channel for the specified duration to complete an off-channel 1983 * operation (e.g., public action frame exchange). When the driver is 1984 * ready on the requested channel, it must indicate this with an event 1985 * notification by calling cfg80211_ready_on_channel(). 1986 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1987 * This allows the operation to be terminated prior to timeout based on 1988 * the duration value. 1989 * @mgmt_tx: Transmit a management frame. 1990 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 1991 * frame on another channel 1992 * 1993 * @testmode_cmd: run a test mode command 1994 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 1995 * used by the function, but 0 and 1 must not be touched. Additionally, 1996 * return error codes other than -ENOBUFS and -ENOENT will terminate the 1997 * dump and return to userspace with an error, so be careful. If any data 1998 * was passed in from userspace then the data/len arguments will be present 1999 * and point to the data contained in %NL80211_ATTR_TESTDATA. 2000 * 2001 * @set_bitrate_mask: set the bitrate mask configuration 2002 * 2003 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 2004 * devices running firmwares capable of generating the (re) association 2005 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 2006 * @del_pmksa: Delete a cached PMKID. 2007 * @flush_pmksa: Flush all cached PMKIDs. 2008 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 2009 * allows the driver to adjust the dynamic ps timeout value. 2010 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 2011 * @set_cqm_txe_config: Configure connection quality monitor TX error 2012 * thresholds. 2013 * @sched_scan_start: Tell the driver to start a scheduled scan. 2014 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. 2015 * 2016 * @mgmt_frame_register: Notify driver that a management frame type was 2017 * registered. Note that this callback may not sleep, and cannot run 2018 * concurrently with itself. 2019 * 2020 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 2021 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 2022 * reject TX/RX mask combinations they cannot support by returning -EINVAL 2023 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 2024 * 2025 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 2026 * 2027 * @set_ringparam: Set tx and rx ring sizes. 2028 * 2029 * @get_ringparam: Get tx and rx ring current and maximum sizes. 2030 * 2031 * @tdls_mgmt: Transmit a TDLS management frame. 2032 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). 2033 * 2034 * @probe_client: probe an associated client, must return a cookie that it 2035 * later passes to cfg80211_probe_status(). 2036 * 2037 * @set_noack_map: Set the NoAck Map for the TIDs. 2038 * 2039 * @get_et_sset_count: Ethtool API to get string-set count. 2040 * See @ethtool_ops.get_sset_count 2041 * 2042 * @get_et_stats: Ethtool API to get a set of u64 stats. 2043 * See @ethtool_ops.get_ethtool_stats 2044 * 2045 * @get_et_strings: Ethtool API to get a set of strings to describe stats 2046 * and perhaps other supported types of ethtool data-sets. 2047 * See @ethtool_ops.get_strings 2048 * 2049 * @get_channel: Get the current operating channel for the virtual interface. 2050 * For monitor interfaces, it should return %NULL unless there's a single 2051 * current monitoring channel. 2052 * 2053 * @start_p2p_device: Start the given P2P device. 2054 * @stop_p2p_device: Stop the given P2P device. 2055 * 2056 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode. 2057 * Parameters include ACL policy, an array of MAC address of stations 2058 * and the number of MAC addresses. If there is already a list in driver 2059 * this new list replaces the existing one. Driver has to clear its ACL 2060 * when number of MAC addresses entries is passed as 0. Drivers which 2061 * advertise the support for MAC based ACL have to implement this callback. 2062 * 2063 * @start_radar_detection: Start radar detection in the driver. 2064 * 2065 * @update_ft_ies: Provide updated Fast BSS Transition information to the 2066 * driver. If the SME is in the driver/firmware, this information can be 2067 * used in building Authentication and Reassociation Request frames. 2068 * 2069 * @crit_proto_start: Indicates a critical protocol needs more link reliability 2070 * for a given duration (milliseconds). The protocol is provided so the 2071 * driver can take the most appropriate actions. 2072 * @crit_proto_stop: Indicates critical protocol no longer needs increased link 2073 * reliability. This operation can not fail. 2074 */ 2075 struct cfg80211_ops { 2076 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 2077 int (*resume)(struct wiphy *wiphy); 2078 void (*set_wakeup)(struct wiphy *wiphy, bool enabled); 2079 2080 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, 2081 const char *name, 2082 enum nl80211_iftype type, 2083 u32 *flags, 2084 struct vif_params *params); 2085 int (*del_virtual_intf)(struct wiphy *wiphy, 2086 struct wireless_dev *wdev); 2087 int (*change_virtual_intf)(struct wiphy *wiphy, 2088 struct net_device *dev, 2089 enum nl80211_iftype type, u32 *flags, 2090 struct vif_params *params); 2091 2092 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 2093 u8 key_index, bool pairwise, const u8 *mac_addr, 2094 struct key_params *params); 2095 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 2096 u8 key_index, bool pairwise, const u8 *mac_addr, 2097 void *cookie, 2098 void (*callback)(void *cookie, struct key_params*)); 2099 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 2100 u8 key_index, bool pairwise, const u8 *mac_addr); 2101 int (*set_default_key)(struct wiphy *wiphy, 2102 struct net_device *netdev, 2103 u8 key_index, bool unicast, bool multicast); 2104 int (*set_default_mgmt_key)(struct wiphy *wiphy, 2105 struct net_device *netdev, 2106 u8 key_index); 2107 2108 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, 2109 struct cfg80211_ap_settings *settings); 2110 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, 2111 struct cfg80211_beacon_data *info); 2112 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev); 2113 2114 2115 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 2116 u8 *mac, struct station_parameters *params); 2117 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 2118 u8 *mac); 2119 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 2120 u8 *mac, struct station_parameters *params); 2121 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 2122 u8 *mac, struct station_info *sinfo); 2123 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 2124 int idx, u8 *mac, struct station_info *sinfo); 2125 2126 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 2127 u8 *dst, u8 *next_hop); 2128 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 2129 u8 *dst); 2130 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 2131 u8 *dst, u8 *next_hop); 2132 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 2133 u8 *dst, u8 *next_hop, 2134 struct mpath_info *pinfo); 2135 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 2136 int idx, u8 *dst, u8 *next_hop, 2137 struct mpath_info *pinfo); 2138 int (*get_mesh_config)(struct wiphy *wiphy, 2139 struct net_device *dev, 2140 struct mesh_config *conf); 2141 int (*update_mesh_config)(struct wiphy *wiphy, 2142 struct net_device *dev, u32 mask, 2143 const struct mesh_config *nconf); 2144 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 2145 const struct mesh_config *conf, 2146 const struct mesh_setup *setup); 2147 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 2148 2149 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 2150 struct bss_parameters *params); 2151 2152 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, 2153 struct ieee80211_txq_params *params); 2154 2155 int (*libertas_set_mesh_channel)(struct wiphy *wiphy, 2156 struct net_device *dev, 2157 struct ieee80211_channel *chan); 2158 2159 int (*set_monitor_channel)(struct wiphy *wiphy, 2160 struct cfg80211_chan_def *chandef); 2161 2162 int (*scan)(struct wiphy *wiphy, 2163 struct cfg80211_scan_request *request); 2164 2165 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 2166 struct cfg80211_auth_request *req); 2167 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 2168 struct cfg80211_assoc_request *req); 2169 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 2170 struct cfg80211_deauth_request *req); 2171 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 2172 struct cfg80211_disassoc_request *req); 2173 2174 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 2175 struct cfg80211_connect_params *sme); 2176 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 2177 u16 reason_code); 2178 2179 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 2180 struct cfg80211_ibss_params *params); 2181 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 2182 2183 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev, 2184 int rate[IEEE80211_NUM_BANDS]); 2185 2186 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 2187 2188 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2189 enum nl80211_tx_power_setting type, int mbm); 2190 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2191 int *dbm); 2192 2193 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 2194 const u8 *addr); 2195 2196 void (*rfkill_poll)(struct wiphy *wiphy); 2197 2198 #ifdef CONFIG_NL80211_TESTMODE 2199 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 2200 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 2201 struct netlink_callback *cb, 2202 void *data, int len); 2203 #endif 2204 2205 int (*set_bitrate_mask)(struct wiphy *wiphy, 2206 struct net_device *dev, 2207 const u8 *peer, 2208 const struct cfg80211_bitrate_mask *mask); 2209 2210 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 2211 int idx, struct survey_info *info); 2212 2213 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2214 struct cfg80211_pmksa *pmksa); 2215 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2216 struct cfg80211_pmksa *pmksa); 2217 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 2218 2219 int (*remain_on_channel)(struct wiphy *wiphy, 2220 struct wireless_dev *wdev, 2221 struct ieee80211_channel *chan, 2222 unsigned int duration, 2223 u64 *cookie); 2224 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 2225 struct wireless_dev *wdev, 2226 u64 cookie); 2227 2228 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, 2229 struct ieee80211_channel *chan, bool offchan, 2230 unsigned int wait, const u8 *buf, size_t len, 2231 bool no_cck, bool dont_wait_for_ack, u64 *cookie); 2232 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 2233 struct wireless_dev *wdev, 2234 u64 cookie); 2235 2236 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2237 bool enabled, int timeout); 2238 2239 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 2240 struct net_device *dev, 2241 s32 rssi_thold, u32 rssi_hyst); 2242 2243 int (*set_cqm_txe_config)(struct wiphy *wiphy, 2244 struct net_device *dev, 2245 u32 rate, u32 pkts, u32 intvl); 2246 2247 void (*mgmt_frame_register)(struct wiphy *wiphy, 2248 struct wireless_dev *wdev, 2249 u16 frame_type, bool reg); 2250 2251 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 2252 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 2253 2254 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); 2255 void (*get_ringparam)(struct wiphy *wiphy, 2256 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); 2257 2258 int (*sched_scan_start)(struct wiphy *wiphy, 2259 struct net_device *dev, 2260 struct cfg80211_sched_scan_request *request); 2261 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 2262 2263 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 2264 struct cfg80211_gtk_rekey_data *data); 2265 2266 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2267 u8 *peer, u8 action_code, u8 dialog_token, 2268 u16 status_code, const u8 *buf, size_t len); 2269 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, 2270 u8 *peer, enum nl80211_tdls_operation oper); 2271 2272 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, 2273 const u8 *peer, u64 *cookie); 2274 2275 int (*set_noack_map)(struct wiphy *wiphy, 2276 struct net_device *dev, 2277 u16 noack_map); 2278 2279 int (*get_et_sset_count)(struct wiphy *wiphy, 2280 struct net_device *dev, int sset); 2281 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev, 2282 struct ethtool_stats *stats, u64 *data); 2283 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev, 2284 u32 sset, u8 *data); 2285 2286 int (*get_channel)(struct wiphy *wiphy, 2287 struct wireless_dev *wdev, 2288 struct cfg80211_chan_def *chandef); 2289 2290 int (*start_p2p_device)(struct wiphy *wiphy, 2291 struct wireless_dev *wdev); 2292 void (*stop_p2p_device)(struct wiphy *wiphy, 2293 struct wireless_dev *wdev); 2294 2295 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev, 2296 const struct cfg80211_acl_data *params); 2297 2298 int (*start_radar_detection)(struct wiphy *wiphy, 2299 struct net_device *dev, 2300 struct cfg80211_chan_def *chandef); 2301 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev, 2302 struct cfg80211_update_ft_ies_params *ftie); 2303 int (*crit_proto_start)(struct wiphy *wiphy, 2304 struct wireless_dev *wdev, 2305 enum nl80211_crit_proto_id protocol, 2306 u16 duration); 2307 void (*crit_proto_stop)(struct wiphy *wiphy, 2308 struct wireless_dev *wdev); 2309 }; 2310 2311 /* 2312 * wireless hardware and networking interfaces structures 2313 * and registration/helper functions 2314 */ 2315 2316 /** 2317 * enum wiphy_flags - wiphy capability flags 2318 * 2319 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 2320 * has its own custom regulatory domain and cannot identify the 2321 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 2322 * we will disregard the first regulatory hint (when the 2323 * initiator is %REGDOM_SET_BY_CORE). 2324 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 2325 * ignore regulatory domain settings until it gets its own regulatory 2326 * domain via its regulatory_hint() unless the regulatory hint is 2327 * from a country IE. After its gets its own regulatory domain it will 2328 * only allow further regulatory domain settings to further enhance 2329 * compliance. For example if channel 13 and 14 are disabled by this 2330 * regulatory domain no user regulatory domain can enable these channels 2331 * at a later time. This can be used for devices which do not have 2332 * calibration information guaranteed for frequencies or settings 2333 * outside of its regulatory domain. If used in combination with 2334 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings 2335 * will be followed. 2336 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 2337 * that passive scan flags and beaconing flags may not be lifted by 2338 * cfg80211 due to regulatory beacon hints. For more information on beacon 2339 * hints read the documenation for regulatory_hint_found_beacon() 2340 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 2341 * wiphy at all 2342 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 2343 * by default -- this flag will be set depending on the kernel's default 2344 * on wiphy_new(), but can be changed by the driver if it has a good 2345 * reason to override the default 2346 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 2347 * on a VLAN interface) 2348 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 2349 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 2350 * control port protocol ethertype. The device also honours the 2351 * control_port_no_encrypt flag. 2352 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 2353 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 2354 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 2355 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. 2356 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the 2357 * firmware. 2358 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. 2359 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. 2360 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) 2361 * link setup/discovery operations internally. Setup, discovery and 2362 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT 2363 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be 2364 * used for asking the driver/firmware to perform a TDLS operation. 2365 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME 2366 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes 2367 * when there are virtual interfaces in AP mode by calling 2368 * cfg80211_report_obss_beacon(). 2369 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device 2370 * responds to probe-requests in hardware. 2371 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. 2372 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. 2373 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels. 2374 */ 2375 enum wiphy_flags { 2376 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 2377 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 2378 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 2379 WIPHY_FLAG_NETNS_OK = BIT(3), 2380 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 2381 WIPHY_FLAG_4ADDR_AP = BIT(5), 2382 WIPHY_FLAG_4ADDR_STATION = BIT(6), 2383 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 2384 WIPHY_FLAG_IBSS_RSN = BIT(8), 2385 WIPHY_FLAG_MESH_AUTH = BIT(10), 2386 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 2387 /* use hole at 12 */ 2388 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), 2389 WIPHY_FLAG_AP_UAPSD = BIT(14), 2390 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), 2391 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), 2392 WIPHY_FLAG_HAVE_AP_SME = BIT(17), 2393 WIPHY_FLAG_REPORTS_OBSS = BIT(18), 2394 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), 2395 WIPHY_FLAG_OFFCHAN_TX = BIT(20), 2396 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), 2397 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22), 2398 }; 2399 2400 /** 2401 * struct ieee80211_iface_limit - limit on certain interface types 2402 * @max: maximum number of interfaces of these types 2403 * @types: interface types (bits) 2404 */ 2405 struct ieee80211_iface_limit { 2406 u16 max; 2407 u16 types; 2408 }; 2409 2410 /** 2411 * struct ieee80211_iface_combination - possible interface combination 2412 * @limits: limits for the given interface types 2413 * @n_limits: number of limitations 2414 * @num_different_channels: can use up to this many different channels 2415 * @max_interfaces: maximum number of interfaces in total allowed in this 2416 * group 2417 * @beacon_int_infra_match: In this combination, the beacon intervals 2418 * between infrastructure and AP types must match. This is required 2419 * only in special cases. 2420 * @radar_detect_widths: bitmap of channel widths supported for radar detection 2421 * 2422 * These examples can be expressed as follows: 2423 * 2424 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 2425 * 2426 * struct ieee80211_iface_limit limits1[] = { 2427 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2428 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 2429 * }; 2430 * struct ieee80211_iface_combination combination1 = { 2431 * .limits = limits1, 2432 * .n_limits = ARRAY_SIZE(limits1), 2433 * .max_interfaces = 2, 2434 * .beacon_int_infra_match = true, 2435 * }; 2436 * 2437 * 2438 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 2439 * 2440 * struct ieee80211_iface_limit limits2[] = { 2441 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 2442 * BIT(NL80211_IFTYPE_P2P_GO), }, 2443 * }; 2444 * struct ieee80211_iface_combination combination2 = { 2445 * .limits = limits2, 2446 * .n_limits = ARRAY_SIZE(limits2), 2447 * .max_interfaces = 8, 2448 * .num_different_channels = 1, 2449 * }; 2450 * 2451 * 2452 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 2453 * This allows for an infrastructure connection and three P2P connections. 2454 * 2455 * struct ieee80211_iface_limit limits3[] = { 2456 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2457 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 2458 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 2459 * }; 2460 * struct ieee80211_iface_combination combination3 = { 2461 * .limits = limits3, 2462 * .n_limits = ARRAY_SIZE(limits3), 2463 * .max_interfaces = 4, 2464 * .num_different_channels = 2, 2465 * }; 2466 */ 2467 struct ieee80211_iface_combination { 2468 const struct ieee80211_iface_limit *limits; 2469 u32 num_different_channels; 2470 u16 max_interfaces; 2471 u8 n_limits; 2472 bool beacon_int_infra_match; 2473 u8 radar_detect_widths; 2474 }; 2475 2476 struct ieee80211_txrx_stypes { 2477 u16 tx, rx; 2478 }; 2479 2480 /** 2481 * enum wiphy_wowlan_support_flags - WoWLAN support flags 2482 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 2483 * trigger that keeps the device operating as-is and 2484 * wakes up the host on any activity, for example a 2485 * received packet that passed filtering; note that the 2486 * packet should be preserved in that case 2487 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 2488 * (see nl80211.h) 2489 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 2490 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 2491 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 2492 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 2493 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 2494 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 2495 */ 2496 enum wiphy_wowlan_support_flags { 2497 WIPHY_WOWLAN_ANY = BIT(0), 2498 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 2499 WIPHY_WOWLAN_DISCONNECT = BIT(2), 2500 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 2501 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 2502 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 2503 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 2504 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 2505 }; 2506 2507 struct wiphy_wowlan_tcp_support { 2508 const struct nl80211_wowlan_tcp_data_token_feature *tok; 2509 u32 data_payload_max; 2510 u32 data_interval_max; 2511 u32 wake_payload_max; 2512 bool seq; 2513 }; 2514 2515 /** 2516 * struct wiphy_wowlan_support - WoWLAN support data 2517 * @flags: see &enum wiphy_wowlan_support_flags 2518 * @n_patterns: number of supported wakeup patterns 2519 * (see nl80211.h for the pattern definition) 2520 * @pattern_max_len: maximum length of each pattern 2521 * @pattern_min_len: minimum length of each pattern 2522 * @max_pkt_offset: maximum Rx packet offset 2523 * @tcp: TCP wakeup support information 2524 */ 2525 struct wiphy_wowlan_support { 2526 u32 flags; 2527 int n_patterns; 2528 int pattern_max_len; 2529 int pattern_min_len; 2530 int max_pkt_offset; 2531 const struct wiphy_wowlan_tcp_support *tcp; 2532 }; 2533 2534 /** 2535 * struct wiphy - wireless hardware description 2536 * @reg_notifier: the driver's regulatory notification callback, 2537 * note that if your driver uses wiphy_apply_custom_regulatory() 2538 * the reg_notifier's request can be passed as NULL 2539 * @regd: the driver's regulatory domain, if one was requested via 2540 * the regulatory_hint() API. This can be used by the driver 2541 * on the reg_notifier() if it chooses to ignore future 2542 * regulatory domain changes caused by other drivers. 2543 * @signal_type: signal type reported in &struct cfg80211_bss. 2544 * @cipher_suites: supported cipher suites 2545 * @n_cipher_suites: number of supported cipher suites 2546 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 2547 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 2548 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 2549 * -1 = fragmentation disabled, only odd values >= 256 used 2550 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 2551 * @_net: the network namespace this wiphy currently lives in 2552 * @perm_addr: permanent MAC address of this device 2553 * @addr_mask: If the device supports multiple MAC addresses by masking, 2554 * set this to a mask with variable bits set to 1, e.g. if the last 2555 * four bits are variable then set it to 00:...:00:0f. The actual 2556 * variable bits shall be determined by the interfaces added, with 2557 * interfaces not matching the mask being rejected to be brought up. 2558 * @n_addresses: number of addresses in @addresses. 2559 * @addresses: If the device has more than one address, set this pointer 2560 * to a list of addresses (6 bytes each). The first one will be used 2561 * by default for perm_addr. In this case, the mask should be set to 2562 * all-zeroes. In this case it is assumed that the device can handle 2563 * the same number of arbitrary MAC addresses. 2564 * @registered: protects ->resume and ->suspend sysfs callbacks against 2565 * unregister hardware 2566 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 2567 * automatically on wiphy renames 2568 * @dev: (virtual) struct device for this wiphy 2569 * @registered: helps synchronize suspend/resume with wiphy unregister 2570 * @wext: wireless extension handlers 2571 * @priv: driver private data (sized according to wiphy_new() parameter) 2572 * @interface_modes: bitmask of interfaces types valid for this wiphy, 2573 * must be set by driver 2574 * @iface_combinations: Valid interface combinations array, should not 2575 * list single interface types. 2576 * @n_iface_combinations: number of entries in @iface_combinations array. 2577 * @software_iftypes: bitmask of software interface types, these are not 2578 * subject to any restrictions since they are purely managed in SW. 2579 * @flags: wiphy flags, see &enum wiphy_flags 2580 * @features: features advertised to nl80211, see &enum nl80211_feature_flags. 2581 * @bss_priv_size: each BSS struct has private data allocated with it, 2582 * this variable determines its size 2583 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 2584 * any given scan 2585 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 2586 * for in any given scheduled scan 2587 * @max_match_sets: maximum number of match sets the device can handle 2588 * when performing a scheduled scan, 0 if filtering is not 2589 * supported. 2590 * @max_scan_ie_len: maximum length of user-controlled IEs device can 2591 * add to probe request frames transmitted during a scan, must not 2592 * include fixed IEs like supported rates 2593 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 2594 * scans 2595 * @coverage_class: current coverage class 2596 * @fw_version: firmware version for ethtool reporting 2597 * @hw_version: hardware version for ethtool reporting 2598 * @max_num_pmkids: maximum number of PMKIDs supported by device 2599 * @privid: a pointer that drivers can use to identify if an arbitrary 2600 * wiphy is theirs, e.g. in global notifiers 2601 * @bands: information about bands/channels supported by this device 2602 * 2603 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 2604 * transmitted through nl80211, points to an array indexed by interface 2605 * type 2606 * 2607 * @available_antennas_tx: bitmap of antennas which are available to be 2608 * configured as TX antennas. Antenna configuration commands will be 2609 * rejected unless this or @available_antennas_rx is set. 2610 * 2611 * @available_antennas_rx: bitmap of antennas which are available to be 2612 * configured as RX antennas. Antenna configuration commands will be 2613 * rejected unless this or @available_antennas_tx is set. 2614 * 2615 * @probe_resp_offload: 2616 * Bitmap of supported protocols for probe response offloading. 2617 * See &enum nl80211_probe_resp_offload_support_attr. Only valid 2618 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2619 * 2620 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 2621 * may request, if implemented. 2622 * 2623 * @wowlan: WoWLAN support information 2624 * @wowlan_config: current WoWLAN configuration; this should usually not be 2625 * used since access to it is necessarily racy, use the parameter passed 2626 * to the suspend() operation instead. 2627 * 2628 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. 2629 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. 2630 * If null, then none can be over-ridden. 2631 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden. 2632 * If null, then none can be over-ridden. 2633 * 2634 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device 2635 * supports for ACL. 2636 * 2637 * @extended_capabilities: extended capabilities supported by the driver, 2638 * additional capabilities might be supported by userspace; these are 2639 * the 802.11 extended capabilities ("Extended Capabilities element") 2640 * and are in the same format as in the information element. See 2641 * 802.11-2012 8.4.2.29 for the defined fields. 2642 * @extended_capabilities_mask: mask of the valid values 2643 * @extended_capabilities_len: length of the extended capabilities 2644 */ 2645 struct wiphy { 2646 /* assign these fields before you register the wiphy */ 2647 2648 /* permanent MAC address(es) */ 2649 u8 perm_addr[ETH_ALEN]; 2650 u8 addr_mask[ETH_ALEN]; 2651 2652 struct mac_address *addresses; 2653 2654 const struct ieee80211_txrx_stypes *mgmt_stypes; 2655 2656 const struct ieee80211_iface_combination *iface_combinations; 2657 int n_iface_combinations; 2658 u16 software_iftypes; 2659 2660 u16 n_addresses; 2661 2662 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 2663 u16 interface_modes; 2664 2665 u16 max_acl_mac_addrs; 2666 2667 u32 flags, features; 2668 2669 u32 ap_sme_capa; 2670 2671 enum cfg80211_signal_type signal_type; 2672 2673 int bss_priv_size; 2674 u8 max_scan_ssids; 2675 u8 max_sched_scan_ssids; 2676 u8 max_match_sets; 2677 u16 max_scan_ie_len; 2678 u16 max_sched_scan_ie_len; 2679 2680 int n_cipher_suites; 2681 const u32 *cipher_suites; 2682 2683 u8 retry_short; 2684 u8 retry_long; 2685 u32 frag_threshold; 2686 u32 rts_threshold; 2687 u8 coverage_class; 2688 2689 char fw_version[ETHTOOL_FWVERS_LEN]; 2690 u32 hw_version; 2691 2692 #ifdef CONFIG_PM 2693 const struct wiphy_wowlan_support *wowlan; 2694 struct cfg80211_wowlan *wowlan_config; 2695 #endif 2696 2697 u16 max_remain_on_channel_duration; 2698 2699 u8 max_num_pmkids; 2700 2701 u32 available_antennas_tx; 2702 u32 available_antennas_rx; 2703 2704 /* 2705 * Bitmap of supported protocols for probe response offloading 2706 * see &enum nl80211_probe_resp_offload_support_attr. Only valid 2707 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2708 */ 2709 u32 probe_resp_offload; 2710 2711 const u8 *extended_capabilities, *extended_capabilities_mask; 2712 u8 extended_capabilities_len; 2713 2714 /* If multiple wiphys are registered and you're handed e.g. 2715 * a regular netdev with assigned ieee80211_ptr, you won't 2716 * know whether it points to a wiphy your driver has registered 2717 * or not. Assign this to something global to your driver to 2718 * help determine whether you own this wiphy or not. */ 2719 const void *privid; 2720 2721 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 2722 2723 /* Lets us get back the wiphy on the callback */ 2724 void (*reg_notifier)(struct wiphy *wiphy, 2725 struct regulatory_request *request); 2726 2727 /* fields below are read-only, assigned by cfg80211 */ 2728 2729 const struct ieee80211_regdomain __rcu *regd; 2730 2731 /* the item in /sys/class/ieee80211/ points to this, 2732 * you need use set_wiphy_dev() (see below) */ 2733 struct device dev; 2734 2735 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ 2736 bool registered; 2737 2738 /* dir in debugfs: ieee80211/<wiphyname> */ 2739 struct dentry *debugfsdir; 2740 2741 const struct ieee80211_ht_cap *ht_capa_mod_mask; 2742 const struct ieee80211_vht_cap *vht_capa_mod_mask; 2743 2744 #ifdef CONFIG_NET_NS 2745 /* the network namespace this phy lives in currently */ 2746 struct net *_net; 2747 #endif 2748 2749 #ifdef CONFIG_CFG80211_WEXT 2750 const struct iw_handler_def *wext; 2751 #endif 2752 2753 char priv[0] __aligned(NETDEV_ALIGN); 2754 }; 2755 2756 static inline struct net *wiphy_net(struct wiphy *wiphy) 2757 { 2758 return read_pnet(&wiphy->_net); 2759 } 2760 2761 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 2762 { 2763 write_pnet(&wiphy->_net, net); 2764 } 2765 2766 /** 2767 * wiphy_priv - return priv from wiphy 2768 * 2769 * @wiphy: the wiphy whose priv pointer to return 2770 * Return: The priv of @wiphy. 2771 */ 2772 static inline void *wiphy_priv(struct wiphy *wiphy) 2773 { 2774 BUG_ON(!wiphy); 2775 return &wiphy->priv; 2776 } 2777 2778 /** 2779 * priv_to_wiphy - return the wiphy containing the priv 2780 * 2781 * @priv: a pointer previously returned by wiphy_priv 2782 * Return: The wiphy of @priv. 2783 */ 2784 static inline struct wiphy *priv_to_wiphy(void *priv) 2785 { 2786 BUG_ON(!priv); 2787 return container_of(priv, struct wiphy, priv); 2788 } 2789 2790 /** 2791 * set_wiphy_dev - set device pointer for wiphy 2792 * 2793 * @wiphy: The wiphy whose device to bind 2794 * @dev: The device to parent it to 2795 */ 2796 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 2797 { 2798 wiphy->dev.parent = dev; 2799 } 2800 2801 /** 2802 * wiphy_dev - get wiphy dev pointer 2803 * 2804 * @wiphy: The wiphy whose device struct to look up 2805 * Return: The dev of @wiphy. 2806 */ 2807 static inline struct device *wiphy_dev(struct wiphy *wiphy) 2808 { 2809 return wiphy->dev.parent; 2810 } 2811 2812 /** 2813 * wiphy_name - get wiphy name 2814 * 2815 * @wiphy: The wiphy whose name to return 2816 * Return: The name of @wiphy. 2817 */ 2818 static inline const char *wiphy_name(const struct wiphy *wiphy) 2819 { 2820 return dev_name(&wiphy->dev); 2821 } 2822 2823 /** 2824 * wiphy_new - create a new wiphy for use with cfg80211 2825 * 2826 * @ops: The configuration operations for this device 2827 * @sizeof_priv: The size of the private area to allocate 2828 * 2829 * Create a new wiphy and associate the given operations with it. 2830 * @sizeof_priv bytes are allocated for private use. 2831 * 2832 * Return: A pointer to the new wiphy. This pointer must be 2833 * assigned to each netdev's ieee80211_ptr for proper operation. 2834 */ 2835 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 2836 2837 /** 2838 * wiphy_register - register a wiphy with cfg80211 2839 * 2840 * @wiphy: The wiphy to register. 2841 * 2842 * Return: A non-negative wiphy index or a negative error code. 2843 */ 2844 extern int wiphy_register(struct wiphy *wiphy); 2845 2846 /** 2847 * wiphy_unregister - deregister a wiphy from cfg80211 2848 * 2849 * @wiphy: The wiphy to unregister. 2850 * 2851 * After this call, no more requests can be made with this priv 2852 * pointer, but the call may sleep to wait for an outstanding 2853 * request that is being handled. 2854 */ 2855 extern void wiphy_unregister(struct wiphy *wiphy); 2856 2857 /** 2858 * wiphy_free - free wiphy 2859 * 2860 * @wiphy: The wiphy to free 2861 */ 2862 extern void wiphy_free(struct wiphy *wiphy); 2863 2864 /* internal structs */ 2865 struct cfg80211_conn; 2866 struct cfg80211_internal_bss; 2867 struct cfg80211_cached_keys; 2868 2869 /** 2870 * struct wireless_dev - wireless device state 2871 * 2872 * For netdevs, this structure must be allocated by the driver 2873 * that uses the ieee80211_ptr field in struct net_device (this 2874 * is intentional so it can be allocated along with the netdev.) 2875 * It need not be registered then as netdev registration will 2876 * be intercepted by cfg80211 to see the new wireless device. 2877 * 2878 * For non-netdev uses, it must also be allocated by the driver 2879 * in response to the cfg80211 callbacks that require it, as 2880 * there's no netdev registration in that case it may not be 2881 * allocated outside of callback operations that return it. 2882 * 2883 * @wiphy: pointer to hardware description 2884 * @iftype: interface type 2885 * @list: (private) Used to collect the interfaces 2886 * @netdev: (private) Used to reference back to the netdev, may be %NULL 2887 * @identifier: (private) Identifier used in nl80211 to identify this 2888 * wireless device if it has no netdev 2889 * @current_bss: (private) Used by the internal configuration code 2890 * @channel: (private) Used by the internal configuration code to track 2891 * the user-set AP, monitor and WDS channel 2892 * @preset_chandef: (private) Used by the internal configuration code to 2893 * track the channel to be used for AP later 2894 * @bssid: (private) Used by the internal configuration code 2895 * @ssid: (private) Used by the internal configuration code 2896 * @ssid_len: (private) Used by the internal configuration code 2897 * @mesh_id_len: (private) Used by the internal configuration code 2898 * @mesh_id_up_len: (private) Used by the internal configuration code 2899 * @wext: (private) Used by the internal wireless extensions compat code 2900 * @use_4addr: indicates 4addr mode is used on this interface, must be 2901 * set by driver (if supported) on add_interface BEFORE registering the 2902 * netdev and may otherwise be used by driver read-only, will be update 2903 * by cfg80211 on change_interface 2904 * @mgmt_registrations: list of registrations for management frames 2905 * @mgmt_registrations_lock: lock for the list 2906 * @mtx: mutex used to lock data in this struct, may be used by drivers 2907 * and some API functions require it held 2908 * @beacon_interval: beacon interval used on this device for transmitting 2909 * beacons, 0 when not valid 2910 * @address: The address for this device, valid only if @netdev is %NULL 2911 * @p2p_started: true if this is a P2P Device that has been started 2912 * @cac_started: true if DFS channel availability check has been started 2913 * @cac_start_time: timestamp (jiffies) when the dfs state was entered. 2914 * @ps: powersave mode is enabled 2915 * @ps_timeout: dynamic powersave timeout 2916 * @ap_unexpected_nlportid: (private) netlink port ID of application 2917 * registered for unexpected class 3 frames (AP mode) 2918 * @conn: (private) cfg80211 software SME connection state machine data 2919 * @connect_keys: (private) keys to set after connection is established 2920 * @ibss_fixed: (private) IBSS is using fixed BSSID 2921 * @event_list: (private) list for internal event processing 2922 * @event_lock: (private) lock for event list 2923 */ 2924 struct wireless_dev { 2925 struct wiphy *wiphy; 2926 enum nl80211_iftype iftype; 2927 2928 /* the remainder of this struct should be private to cfg80211 */ 2929 struct list_head list; 2930 struct net_device *netdev; 2931 2932 u32 identifier; 2933 2934 struct list_head mgmt_registrations; 2935 spinlock_t mgmt_registrations_lock; 2936 2937 struct mutex mtx; 2938 2939 bool use_4addr, p2p_started; 2940 2941 u8 address[ETH_ALEN] __aligned(sizeof(u16)); 2942 2943 /* currently used for IBSS and SME - might be rearranged later */ 2944 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2945 u8 ssid_len, mesh_id_len, mesh_id_up_len; 2946 struct cfg80211_conn *conn; 2947 struct cfg80211_cached_keys *connect_keys; 2948 2949 struct list_head event_list; 2950 spinlock_t event_lock; 2951 2952 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 2953 struct cfg80211_chan_def preset_chandef; 2954 2955 /* for AP and mesh channel tracking */ 2956 struct ieee80211_channel *channel; 2957 2958 bool ibss_fixed; 2959 2960 bool ps; 2961 int ps_timeout; 2962 2963 int beacon_interval; 2964 2965 u32 ap_unexpected_nlportid; 2966 2967 bool cac_started; 2968 unsigned long cac_start_time; 2969 2970 #ifdef CONFIG_CFG80211_WEXT 2971 /* wext data */ 2972 struct { 2973 struct cfg80211_ibss_params ibss; 2974 struct cfg80211_connect_params connect; 2975 struct cfg80211_cached_keys *keys; 2976 u8 *ie; 2977 size_t ie_len; 2978 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 2979 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2980 s8 default_key, default_mgmt_key; 2981 bool prev_bssid_valid; 2982 } wext; 2983 #endif 2984 }; 2985 2986 static inline u8 *wdev_address(struct wireless_dev *wdev) 2987 { 2988 if (wdev->netdev) 2989 return wdev->netdev->dev_addr; 2990 return wdev->address; 2991 } 2992 2993 /** 2994 * wdev_priv - return wiphy priv from wireless_dev 2995 * 2996 * @wdev: The wireless device whose wiphy's priv pointer to return 2997 * Return: The wiphy priv of @wdev. 2998 */ 2999 static inline void *wdev_priv(struct wireless_dev *wdev) 3000 { 3001 BUG_ON(!wdev); 3002 return wiphy_priv(wdev->wiphy); 3003 } 3004 3005 /** 3006 * DOC: Utility functions 3007 * 3008 * cfg80211 offers a number of utility functions that can be useful. 3009 */ 3010 3011 /** 3012 * ieee80211_channel_to_frequency - convert channel number to frequency 3013 * @chan: channel number 3014 * @band: band, necessary due to channel number overlap 3015 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed. 3016 */ 3017 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 3018 3019 /** 3020 * ieee80211_frequency_to_channel - convert frequency to channel number 3021 * @freq: center frequency 3022 * Return: The corresponding channel, or 0 if the conversion failed. 3023 */ 3024 extern int ieee80211_frequency_to_channel(int freq); 3025 3026 /* 3027 * Name indirection necessary because the ieee80211 code also has 3028 * a function named "ieee80211_get_channel", so if you include 3029 * cfg80211's header file you get cfg80211's version, if you try 3030 * to include both header files you'll (rightfully!) get a symbol 3031 * clash. 3032 */ 3033 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 3034 int freq); 3035 /** 3036 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 3037 * @wiphy: the struct wiphy to get the channel for 3038 * @freq: the center frequency of the channel 3039 * Return: The channel struct from @wiphy at @freq. 3040 */ 3041 static inline struct ieee80211_channel * 3042 ieee80211_get_channel(struct wiphy *wiphy, int freq) 3043 { 3044 return __ieee80211_get_channel(wiphy, freq); 3045 } 3046 3047 /** 3048 * ieee80211_get_response_rate - get basic rate for a given rate 3049 * 3050 * @sband: the band to look for rates in 3051 * @basic_rates: bitmap of basic rates 3052 * @bitrate: the bitrate for which to find the basic rate 3053 * 3054 * Return: The basic rate corresponding to a given bitrate, that 3055 * is the next lower bitrate contained in the basic rate map, 3056 * which is, for this function, given as a bitmap of indices of 3057 * rates in the band's bitrate table. 3058 */ 3059 struct ieee80211_rate * 3060 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 3061 u32 basic_rates, int bitrate); 3062 3063 /** 3064 * ieee80211_mandatory_rates - get mandatory rates for a given band 3065 * @sband: the band to look for rates in 3066 * 3067 * This function returns a bitmap of the mandatory rates for the given 3068 * band, bits are set according to the rate position in the bitrates array. 3069 */ 3070 u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband); 3071 3072 /* 3073 * Radiotap parsing functions -- for controlled injection support 3074 * 3075 * Implemented in net/wireless/radiotap.c 3076 * Documentation in Documentation/networking/radiotap-headers.txt 3077 */ 3078 3079 struct radiotap_align_size { 3080 uint8_t align:4, size:4; 3081 }; 3082 3083 struct ieee80211_radiotap_namespace { 3084 const struct radiotap_align_size *align_size; 3085 int n_bits; 3086 uint32_t oui; 3087 uint8_t subns; 3088 }; 3089 3090 struct ieee80211_radiotap_vendor_namespaces { 3091 const struct ieee80211_radiotap_namespace *ns; 3092 int n_ns; 3093 }; 3094 3095 /** 3096 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 3097 * @this_arg_index: index of current arg, valid after each successful call 3098 * to ieee80211_radiotap_iterator_next() 3099 * @this_arg: pointer to current radiotap arg; it is valid after each 3100 * call to ieee80211_radiotap_iterator_next() but also after 3101 * ieee80211_radiotap_iterator_init() where it will point to 3102 * the beginning of the actual data portion 3103 * @this_arg_size: length of the current arg, for convenience 3104 * @current_namespace: pointer to the current namespace definition 3105 * (or internally %NULL if the current namespace is unknown) 3106 * @is_radiotap_ns: indicates whether the current namespace is the default 3107 * radiotap namespace or not 3108 * 3109 * @_rtheader: pointer to the radiotap header we are walking through 3110 * @_max_length: length of radiotap header in cpu byte ordering 3111 * @_arg_index: next argument index 3112 * @_arg: next argument pointer 3113 * @_next_bitmap: internal pointer to next present u32 3114 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 3115 * @_vns: vendor namespace definitions 3116 * @_next_ns_data: beginning of the next namespace's data 3117 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 3118 * next bitmap word 3119 * 3120 * Describes the radiotap parser state. Fields prefixed with an underscore 3121 * must not be used by users of the parser, only by the parser internally. 3122 */ 3123 3124 struct ieee80211_radiotap_iterator { 3125 struct ieee80211_radiotap_header *_rtheader; 3126 const struct ieee80211_radiotap_vendor_namespaces *_vns; 3127 const struct ieee80211_radiotap_namespace *current_namespace; 3128 3129 unsigned char *_arg, *_next_ns_data; 3130 __le32 *_next_bitmap; 3131 3132 unsigned char *this_arg; 3133 int this_arg_index; 3134 int this_arg_size; 3135 3136 int is_radiotap_ns; 3137 3138 int _max_length; 3139 int _arg_index; 3140 uint32_t _bitmap_shifter; 3141 int _reset_on_ext; 3142 }; 3143 3144 extern int ieee80211_radiotap_iterator_init( 3145 struct ieee80211_radiotap_iterator *iterator, 3146 struct ieee80211_radiotap_header *radiotap_header, 3147 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 3148 3149 extern int ieee80211_radiotap_iterator_next( 3150 struct ieee80211_radiotap_iterator *iterator); 3151 3152 3153 extern const unsigned char rfc1042_header[6]; 3154 extern const unsigned char bridge_tunnel_header[6]; 3155 3156 /** 3157 * ieee80211_get_hdrlen_from_skb - get header length from data 3158 * 3159 * @skb: the frame 3160 * 3161 * Given an skb with a raw 802.11 header at the data pointer this function 3162 * returns the 802.11 header length. 3163 * 3164 * Return: The 802.11 header length in bytes (not including encryption 3165 * headers). Or 0 if the data in the sk_buff is too short to contain a valid 3166 * 802.11 header. 3167 */ 3168 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 3169 3170 /** 3171 * ieee80211_hdrlen - get header length in bytes from frame control 3172 * @fc: frame control field in little-endian format 3173 * Return: The header length in bytes. 3174 */ 3175 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 3176 3177 /** 3178 * ieee80211_get_mesh_hdrlen - get mesh extension header length 3179 * @meshhdr: the mesh extension header, only the flags field 3180 * (first byte) will be accessed 3181 * Return: The length of the extension header, which is always at 3182 * least 6 bytes and at most 18 if address 5 and 6 are present. 3183 */ 3184 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); 3185 3186 /** 3187 * DOC: Data path helpers 3188 * 3189 * In addition to generic utilities, cfg80211 also offers 3190 * functions that help implement the data path for devices 3191 * that do not do the 802.11/802.3 conversion on the device. 3192 */ 3193 3194 /** 3195 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 3196 * @skb: the 802.11 data frame 3197 * @addr: the device MAC address 3198 * @iftype: the virtual interface type 3199 * Return: 0 on success. Non-zero on error. 3200 */ 3201 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 3202 enum nl80211_iftype iftype); 3203 3204 /** 3205 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 3206 * @skb: the 802.3 frame 3207 * @addr: the device MAC address 3208 * @iftype: the virtual interface type 3209 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 3210 * @qos: build 802.11 QoS data frame 3211 * Return: 0 on success, or a negative error code. 3212 */ 3213 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 3214 enum nl80211_iftype iftype, u8 *bssid, bool qos); 3215 3216 /** 3217 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 3218 * 3219 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 3220 * 802.3 frames. The @list will be empty if the decode fails. The 3221 * @skb is consumed after the function returns. 3222 * 3223 * @skb: The input IEEE 802.11n A-MSDU frame. 3224 * @list: The output list of 802.3 frames. It must be allocated and 3225 * initialized by by the caller. 3226 * @addr: The device MAC address. 3227 * @iftype: The device interface type. 3228 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 3229 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 3230 */ 3231 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 3232 const u8 *addr, enum nl80211_iftype iftype, 3233 const unsigned int extra_headroom, 3234 bool has_80211_header); 3235 3236 /** 3237 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 3238 * @skb: the data frame 3239 * Return: The 802.1p/1d tag. 3240 */ 3241 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 3242 3243 /** 3244 * cfg80211_find_ie - find information element in data 3245 * 3246 * @eid: element ID 3247 * @ies: data consisting of IEs 3248 * @len: length of data 3249 * 3250 * Return: %NULL if the element ID could not be found or if 3251 * the element is invalid (claims to be longer than the given 3252 * data), or a pointer to the first byte of the requested 3253 * element, that is the byte containing the element ID. 3254 * 3255 * Note: There are no checks on the element length other than 3256 * having to fit into the given data. 3257 */ 3258 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 3259 3260 /** 3261 * cfg80211_find_vendor_ie - find vendor specific information element in data 3262 * 3263 * @oui: vendor OUI 3264 * @oui_type: vendor-specific OUI type 3265 * @ies: data consisting of IEs 3266 * @len: length of data 3267 * 3268 * Return: %NULL if the vendor specific element ID could not be found or if the 3269 * element is invalid (claims to be longer than the given data), or a pointer to 3270 * the first byte of the requested element, that is the byte containing the 3271 * element ID. 3272 * 3273 * Note: There are no checks on the element length other than having to fit into 3274 * the given data. 3275 */ 3276 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, 3277 const u8 *ies, int len); 3278 3279 /** 3280 * DOC: Regulatory enforcement infrastructure 3281 * 3282 * TODO 3283 */ 3284 3285 /** 3286 * regulatory_hint - driver hint to the wireless core a regulatory domain 3287 * @wiphy: the wireless device giving the hint (used only for reporting 3288 * conflicts) 3289 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 3290 * should be in. If @rd is set this should be NULL. Note that if you 3291 * set this to NULL you should still set rd->alpha2 to some accepted 3292 * alpha2. 3293 * 3294 * Wireless drivers can use this function to hint to the wireless core 3295 * what it believes should be the current regulatory domain by 3296 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 3297 * domain should be in or by providing a completely build regulatory domain. 3298 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 3299 * for a regulatory domain structure for the respective country. 3300 * 3301 * The wiphy must have been registered to cfg80211 prior to this call. 3302 * For cfg80211 drivers this means you must first use wiphy_register(), 3303 * for mac80211 drivers you must first use ieee80211_register_hw(). 3304 * 3305 * Drivers should check the return value, its possible you can get 3306 * an -ENOMEM. 3307 * 3308 * Return: 0 on success. -ENOMEM. 3309 */ 3310 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 3311 3312 /** 3313 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 3314 * @wiphy: the wireless device we want to process the regulatory domain on 3315 * @regd: the custom regulatory domain to use for this wiphy 3316 * 3317 * Drivers can sometimes have custom regulatory domains which do not apply 3318 * to a specific country. Drivers can use this to apply such custom regulatory 3319 * domains. This routine must be called prior to wiphy registration. The 3320 * custom regulatory domain will be trusted completely and as such previous 3321 * default channel settings will be disregarded. If no rule is found for a 3322 * channel on the regulatory domain the channel will be disabled. 3323 */ 3324 extern void wiphy_apply_custom_regulatory( 3325 struct wiphy *wiphy, 3326 const struct ieee80211_regdomain *regd); 3327 3328 /** 3329 * freq_reg_info - get regulatory information for the given frequency 3330 * @wiphy: the wiphy for which we want to process this rule for 3331 * @center_freq: Frequency in KHz for which we want regulatory information for 3332 * 3333 * Use this function to get the regulatory rule for a specific frequency on 3334 * a given wireless device. If the device has a specific regulatory domain 3335 * it wants to follow we respect that unless a country IE has been received 3336 * and processed already. 3337 * 3338 * Return: A valid pointer, or, when an error occurs, for example if no rule 3339 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to 3340 * check and PTR_ERR() to obtain the numeric return value. The numeric return 3341 * value will be -ERANGE if we determine the given center_freq does not even 3342 * have a regulatory rule for a frequency range in the center_freq's band. 3343 * See freq_in_rule_band() for our current definition of a band -- this is 3344 * purely subjective and right now it's 802.11 specific. 3345 */ 3346 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, 3347 u32 center_freq); 3348 3349 /* 3350 * callbacks for asynchronous cfg80211 methods, notification 3351 * functions and BSS handling helpers 3352 */ 3353 3354 /** 3355 * cfg80211_scan_done - notify that scan finished 3356 * 3357 * @request: the corresponding scan request 3358 * @aborted: set to true if the scan was aborted for any reason, 3359 * userspace will be notified of that 3360 */ 3361 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 3362 3363 /** 3364 * cfg80211_sched_scan_results - notify that new scan results are available 3365 * 3366 * @wiphy: the wiphy which got scheduled scan results 3367 */ 3368 void cfg80211_sched_scan_results(struct wiphy *wiphy); 3369 3370 /** 3371 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 3372 * 3373 * @wiphy: the wiphy on which the scheduled scan stopped 3374 * 3375 * The driver can call this function to inform cfg80211 that the 3376 * scheduled scan had to be stopped, for whatever reason. The driver 3377 * is then called back via the sched_scan_stop operation when done. 3378 */ 3379 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 3380 3381 /** 3382 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 3383 * 3384 * @wiphy: the wiphy reporting the BSS 3385 * @channel: The channel the frame was received on 3386 * @mgmt: the management frame (probe response or beacon) 3387 * @len: length of the management frame 3388 * @signal: the signal strength, type depends on the wiphy's signal_type 3389 * @gfp: context flags 3390 * 3391 * This informs cfg80211 that BSS information was found and 3392 * the BSS should be updated/added. 3393 * 3394 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3395 * Or %NULL on error. 3396 */ 3397 struct cfg80211_bss * __must_check 3398 cfg80211_inform_bss_frame(struct wiphy *wiphy, 3399 struct ieee80211_channel *channel, 3400 struct ieee80211_mgmt *mgmt, size_t len, 3401 s32 signal, gfp_t gfp); 3402 3403 /** 3404 * cfg80211_inform_bss - inform cfg80211 of a new BSS 3405 * 3406 * @wiphy: the wiphy reporting the BSS 3407 * @channel: The channel the frame was received on 3408 * @bssid: the BSSID of the BSS 3409 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) 3410 * @capability: the capability field sent by the peer 3411 * @beacon_interval: the beacon interval announced by the peer 3412 * @ie: additional IEs sent by the peer 3413 * @ielen: length of the additional IEs 3414 * @signal: the signal strength, type depends on the wiphy's signal_type 3415 * @gfp: context flags 3416 * 3417 * This informs cfg80211 that BSS information was found and 3418 * the BSS should be updated/added. 3419 * 3420 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3421 * Or %NULL on error. 3422 */ 3423 struct cfg80211_bss * __must_check 3424 cfg80211_inform_bss(struct wiphy *wiphy, 3425 struct ieee80211_channel *channel, 3426 const u8 *bssid, u64 tsf, u16 capability, 3427 u16 beacon_interval, const u8 *ie, size_t ielen, 3428 s32 signal, gfp_t gfp); 3429 3430 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 3431 struct ieee80211_channel *channel, 3432 const u8 *bssid, 3433 const u8 *ssid, size_t ssid_len, 3434 u16 capa_mask, u16 capa_val); 3435 static inline struct cfg80211_bss * 3436 cfg80211_get_ibss(struct wiphy *wiphy, 3437 struct ieee80211_channel *channel, 3438 const u8 *ssid, size_t ssid_len) 3439 { 3440 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 3441 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 3442 } 3443 3444 /** 3445 * cfg80211_ref_bss - reference BSS struct 3446 * @wiphy: the wiphy this BSS struct belongs to 3447 * @bss: the BSS struct to reference 3448 * 3449 * Increments the refcount of the given BSS struct. 3450 */ 3451 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3452 3453 /** 3454 * cfg80211_put_bss - unref BSS struct 3455 * @wiphy: the wiphy this BSS struct belongs to 3456 * @bss: the BSS struct 3457 * 3458 * Decrements the refcount of the given BSS struct. 3459 */ 3460 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3461 3462 /** 3463 * cfg80211_unlink_bss - unlink BSS from internal data structures 3464 * @wiphy: the wiphy 3465 * @bss: the bss to remove 3466 * 3467 * This function removes the given BSS from the internal data structures 3468 * thereby making it no longer show up in scan results etc. Use this 3469 * function when you detect a BSS is gone. Normally BSSes will also time 3470 * out, so it is not necessary to use this function at all. 3471 */ 3472 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3473 3474 /** 3475 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame 3476 * @dev: network device 3477 * @buf: authentication frame (header + body) 3478 * @len: length of the frame data 3479 * 3480 * This function is called whenever an authentication, disassociation or 3481 * deauthentication frame has been received and processed in station mode. 3482 * After being asked to authenticate via cfg80211_ops::auth() the driver must 3483 * call either this function or cfg80211_auth_timeout(). 3484 * After being asked to associate via cfg80211_ops::assoc() the driver must 3485 * call either this function or cfg80211_auth_timeout(). 3486 * While connected, the driver must calls this for received and processed 3487 * disassociation and deauthentication frames. If the frame couldn't be used 3488 * because it was unprotected, the driver must call the function 3489 * cfg80211_rx_unprot_mlme_mgmt() instead. 3490 * 3491 * This function may sleep. The caller must hold the corresponding wdev's mutex. 3492 */ 3493 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); 3494 3495 /** 3496 * cfg80211_auth_timeout - notification of timed out authentication 3497 * @dev: network device 3498 * @addr: The MAC address of the device with which the authentication timed out 3499 * 3500 * This function may sleep. The caller must hold the corresponding wdev's 3501 * mutex. 3502 */ 3503 void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr); 3504 3505 /** 3506 * cfg80211_rx_assoc_resp - notification of processed association response 3507 * @dev: network device 3508 * @bss: the BSS that association was requested with, ownership of the pointer 3509 * moves to cfg80211 in this call 3510 * @buf: authentication frame (header + body) 3511 * @len: length of the frame data 3512 * 3513 * After being asked to associate via cfg80211_ops::assoc() the driver must 3514 * call either this function or cfg80211_auth_timeout(). 3515 * 3516 * This function may sleep. The caller must hold the corresponding wdev's mutex. 3517 */ 3518 void cfg80211_rx_assoc_resp(struct net_device *dev, 3519 struct cfg80211_bss *bss, 3520 const u8 *buf, size_t len); 3521 3522 /** 3523 * cfg80211_assoc_timeout - notification of timed out association 3524 * @dev: network device 3525 * @bss: The BSS entry with which association timed out. 3526 * 3527 * This function may sleep. The caller must hold the corresponding wdev's mutex. 3528 */ 3529 void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss); 3530 3531 /** 3532 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame 3533 * @dev: network device 3534 * @buf: 802.11 frame (header + body) 3535 * @len: length of the frame data 3536 * 3537 * This function is called whenever deauthentication has been processed in 3538 * station mode. This includes both received deauthentication frames and 3539 * locally generated ones. This function may sleep. The caller must hold the 3540 * corresponding wdev's mutex. 3541 */ 3542 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); 3543 3544 /** 3545 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame 3546 * @dev: network device 3547 * @buf: deauthentication frame (header + body) 3548 * @len: length of the frame data 3549 * 3550 * This function is called whenever a received deauthentication or dissassoc 3551 * frame has been dropped in station mode because of MFP being used but the 3552 * frame was not protected. This function may sleep. 3553 */ 3554 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, 3555 const u8 *buf, size_t len); 3556 3557 /** 3558 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 3559 * @dev: network device 3560 * @addr: The source MAC address of the frame 3561 * @key_type: The key type that the received frame used 3562 * @key_id: Key identifier (0..3). Can be -1 if missing. 3563 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 3564 * @gfp: allocation flags 3565 * 3566 * This function is called whenever the local MAC detects a MIC failure in a 3567 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 3568 * primitive. 3569 */ 3570 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 3571 enum nl80211_key_type key_type, int key_id, 3572 const u8 *tsc, gfp_t gfp); 3573 3574 /** 3575 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 3576 * 3577 * @dev: network device 3578 * @bssid: the BSSID of the IBSS joined 3579 * @gfp: allocation flags 3580 * 3581 * This function notifies cfg80211 that the device joined an IBSS or 3582 * switched to a different BSSID. Before this function can be called, 3583 * either a beacon has to have been received from the IBSS, or one of 3584 * the cfg80211_inform_bss{,_frame} functions must have been called 3585 * with the locally generated beacon -- this guarantees that there is 3586 * always a scan result for this IBSS. cfg80211 will handle the rest. 3587 */ 3588 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 3589 3590 /** 3591 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 3592 * 3593 * @dev: network device 3594 * @macaddr: the MAC address of the new candidate 3595 * @ie: information elements advertised by the peer candidate 3596 * @ie_len: lenght of the information elements buffer 3597 * @gfp: allocation flags 3598 * 3599 * This function notifies cfg80211 that the mesh peer candidate has been 3600 * detected, most likely via a beacon or, less likely, via a probe response. 3601 * cfg80211 then sends a notification to userspace. 3602 */ 3603 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 3604 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 3605 3606 /** 3607 * DOC: RFkill integration 3608 * 3609 * RFkill integration in cfg80211 is almost invisible to drivers, 3610 * as cfg80211 automatically registers an rfkill instance for each 3611 * wireless device it knows about. Soft kill is also translated 3612 * into disconnecting and turning all interfaces off, drivers are 3613 * expected to turn off the device when all interfaces are down. 3614 * 3615 * However, devices may have a hard RFkill line, in which case they 3616 * also need to interact with the rfkill subsystem, via cfg80211. 3617 * They can do this with a few helper functions documented here. 3618 */ 3619 3620 /** 3621 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 3622 * @wiphy: the wiphy 3623 * @blocked: block status 3624 */ 3625 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 3626 3627 /** 3628 * wiphy_rfkill_start_polling - start polling rfkill 3629 * @wiphy: the wiphy 3630 */ 3631 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 3632 3633 /** 3634 * wiphy_rfkill_stop_polling - stop polling rfkill 3635 * @wiphy: the wiphy 3636 */ 3637 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 3638 3639 #ifdef CONFIG_NL80211_TESTMODE 3640 /** 3641 * DOC: Test mode 3642 * 3643 * Test mode is a set of utility functions to allow drivers to 3644 * interact with driver-specific tools to aid, for instance, 3645 * factory programming. 3646 * 3647 * This chapter describes how drivers interact with it, for more 3648 * information see the nl80211 book's chapter on it. 3649 */ 3650 3651 /** 3652 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 3653 * @wiphy: the wiphy 3654 * @approxlen: an upper bound of the length of the data that will 3655 * be put into the skb 3656 * 3657 * This function allocates and pre-fills an skb for a reply to 3658 * the testmode command. Since it is intended for a reply, calling 3659 * it outside of the @testmode_cmd operation is invalid. 3660 * 3661 * The returned skb is pre-filled with the wiphy index and set up in 3662 * a way that any data that is put into the skb (with skb_put(), 3663 * nla_put() or similar) will end up being within the 3664 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done 3665 * with the skb is adding data for the corresponding userspace tool 3666 * which can then read that data out of the testdata attribute. You 3667 * must not modify the skb in any other way. 3668 * 3669 * When done, call cfg80211_testmode_reply() with the skb and return 3670 * its error code as the result of the @testmode_cmd operation. 3671 * 3672 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 3673 */ 3674 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 3675 int approxlen); 3676 3677 /** 3678 * cfg80211_testmode_reply - send the reply skb 3679 * @skb: The skb, must have been allocated with 3680 * cfg80211_testmode_alloc_reply_skb() 3681 * 3682 * Since calling this function will usually be the last thing 3683 * before returning from the @testmode_cmd you should return 3684 * the error code. Note that this function consumes the skb 3685 * regardless of the return value. 3686 * 3687 * Return: An error code or 0 on success. 3688 */ 3689 int cfg80211_testmode_reply(struct sk_buff *skb); 3690 3691 /** 3692 * cfg80211_testmode_alloc_event_skb - allocate testmode event 3693 * @wiphy: the wiphy 3694 * @approxlen: an upper bound of the length of the data that will 3695 * be put into the skb 3696 * @gfp: allocation flags 3697 * 3698 * This function allocates and pre-fills an skb for an event on the 3699 * testmode multicast group. 3700 * 3701 * The returned skb is set up in the same way as with 3702 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As 3703 * there, you should simply add data to it that will then end up in the 3704 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb 3705 * in any other way. 3706 * 3707 * When done filling the skb, call cfg80211_testmode_event() with the 3708 * skb to send the event. 3709 * 3710 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 3711 */ 3712 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 3713 int approxlen, gfp_t gfp); 3714 3715 /** 3716 * cfg80211_testmode_event - send the event 3717 * @skb: The skb, must have been allocated with 3718 * cfg80211_testmode_alloc_event_skb() 3719 * @gfp: allocation flags 3720 * 3721 * This function sends the given @skb, which must have been allocated 3722 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 3723 * consumes it. 3724 */ 3725 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 3726 3727 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 3728 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 3729 #else 3730 #define CFG80211_TESTMODE_CMD(cmd) 3731 #define CFG80211_TESTMODE_DUMP(cmd) 3732 #endif 3733 3734 /** 3735 * cfg80211_connect_result - notify cfg80211 of connection result 3736 * 3737 * @dev: network device 3738 * @bssid: the BSSID of the AP 3739 * @req_ie: association request IEs (maybe be %NULL) 3740 * @req_ie_len: association request IEs length 3741 * @resp_ie: association response IEs (may be %NULL) 3742 * @resp_ie_len: assoc response IEs length 3743 * @status: status code, 0 for successful connection, use 3744 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 3745 * the real status code for failures. 3746 * @gfp: allocation flags 3747 * 3748 * It should be called by the underlying driver whenever connect() has 3749 * succeeded. 3750 */ 3751 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 3752 const u8 *req_ie, size_t req_ie_len, 3753 const u8 *resp_ie, size_t resp_ie_len, 3754 u16 status, gfp_t gfp); 3755 3756 /** 3757 * cfg80211_roamed - notify cfg80211 of roaming 3758 * 3759 * @dev: network device 3760 * @channel: the channel of the new AP 3761 * @bssid: the BSSID of the new AP 3762 * @req_ie: association request IEs (maybe be %NULL) 3763 * @req_ie_len: association request IEs length 3764 * @resp_ie: association response IEs (may be %NULL) 3765 * @resp_ie_len: assoc response IEs length 3766 * @gfp: allocation flags 3767 * 3768 * It should be called by the underlying driver whenever it roamed 3769 * from one AP to another while connected. 3770 */ 3771 void cfg80211_roamed(struct net_device *dev, 3772 struct ieee80211_channel *channel, 3773 const u8 *bssid, 3774 const u8 *req_ie, size_t req_ie_len, 3775 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3776 3777 /** 3778 * cfg80211_roamed_bss - notify cfg80211 of roaming 3779 * 3780 * @dev: network device 3781 * @bss: entry of bss to which STA got roamed 3782 * @req_ie: association request IEs (maybe be %NULL) 3783 * @req_ie_len: association request IEs length 3784 * @resp_ie: association response IEs (may be %NULL) 3785 * @resp_ie_len: assoc response IEs length 3786 * @gfp: allocation flags 3787 * 3788 * This is just a wrapper to notify cfg80211 of roaming event with driver 3789 * passing bss to avoid a race in timeout of the bss entry. It should be 3790 * called by the underlying driver whenever it roamed from one AP to another 3791 * while connected. Drivers which have roaming implemented in firmware 3792 * may use this function to avoid a race in bss entry timeout where the bss 3793 * entry of the new AP is seen in the driver, but gets timed out by the time 3794 * it is accessed in __cfg80211_roamed() due to delay in scheduling 3795 * rdev->event_work. In case of any failures, the reference is released 3796 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise, 3797 * it will be released while diconneting from the current bss. 3798 */ 3799 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss, 3800 const u8 *req_ie, size_t req_ie_len, 3801 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3802 3803 /** 3804 * cfg80211_disconnected - notify cfg80211 that connection was dropped 3805 * 3806 * @dev: network device 3807 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 3808 * @ie_len: length of IEs 3809 * @reason: reason code for the disconnection, set it to 0 if unknown 3810 * @gfp: allocation flags 3811 * 3812 * After it calls this function, the driver should enter an idle state 3813 * and not try to connect to any AP any more. 3814 */ 3815 void cfg80211_disconnected(struct net_device *dev, u16 reason, 3816 u8 *ie, size_t ie_len, gfp_t gfp); 3817 3818 /** 3819 * cfg80211_ready_on_channel - notification of remain_on_channel start 3820 * @wdev: wireless device 3821 * @cookie: the request cookie 3822 * @chan: The current channel (from remain_on_channel request) 3823 * @duration: Duration in milliseconds that the driver intents to remain on the 3824 * channel 3825 * @gfp: allocation flags 3826 */ 3827 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, 3828 struct ieee80211_channel *chan, 3829 unsigned int duration, gfp_t gfp); 3830 3831 /** 3832 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 3833 * @wdev: wireless device 3834 * @cookie: the request cookie 3835 * @chan: The current channel (from remain_on_channel request) 3836 * @gfp: allocation flags 3837 */ 3838 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, 3839 struct ieee80211_channel *chan, 3840 gfp_t gfp); 3841 3842 3843 /** 3844 * cfg80211_new_sta - notify userspace about station 3845 * 3846 * @dev: the netdev 3847 * @mac_addr: the station's address 3848 * @sinfo: the station information 3849 * @gfp: allocation flags 3850 */ 3851 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 3852 struct station_info *sinfo, gfp_t gfp); 3853 3854 /** 3855 * cfg80211_del_sta - notify userspace about deletion of a station 3856 * 3857 * @dev: the netdev 3858 * @mac_addr: the station's address 3859 * @gfp: allocation flags 3860 */ 3861 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 3862 3863 /** 3864 * cfg80211_conn_failed - connection request failed notification 3865 * 3866 * @dev: the netdev 3867 * @mac_addr: the station's address 3868 * @reason: the reason for connection failure 3869 * @gfp: allocation flags 3870 * 3871 * Whenever a station tries to connect to an AP and if the station 3872 * could not connect to the AP as the AP has rejected the connection 3873 * for some reasons, this function is called. 3874 * 3875 * The reason for connection failure can be any of the value from 3876 * nl80211_connect_failed_reason enum 3877 */ 3878 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, 3879 enum nl80211_connect_failed_reason reason, 3880 gfp_t gfp); 3881 3882 /** 3883 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 3884 * @wdev: wireless device receiving the frame 3885 * @freq: Frequency on which the frame was received in MHz 3886 * @sig_dbm: signal strength in mBm, or 0 if unknown 3887 * @buf: Management frame (header + body) 3888 * @len: length of the frame data 3889 * @gfp: context flags 3890 * 3891 * This function is called whenever an Action frame is received for a station 3892 * mode interface, but is not processed in kernel. 3893 * 3894 * Return: %true if a user space application has registered for this frame. 3895 * For action frames, that makes it responsible for rejecting unrecognized 3896 * action frames; %false otherwise, in which case for action frames the 3897 * driver is responsible for rejecting the frame. 3898 */ 3899 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, 3900 const u8 *buf, size_t len, gfp_t gfp); 3901 3902 /** 3903 * cfg80211_mgmt_tx_status - notification of TX status for management frame 3904 * @wdev: wireless device receiving the frame 3905 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 3906 * @buf: Management frame (header + body) 3907 * @len: length of the frame data 3908 * @ack: Whether frame was acknowledged 3909 * @gfp: context flags 3910 * 3911 * This function is called whenever a management frame was requested to be 3912 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 3913 * transmission attempt. 3914 */ 3915 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, 3916 const u8 *buf, size_t len, bool ack, gfp_t gfp); 3917 3918 3919 /** 3920 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 3921 * @dev: network device 3922 * @rssi_event: the triggered RSSI event 3923 * @gfp: context flags 3924 * 3925 * This function is called when a configured connection quality monitoring 3926 * rssi threshold reached event occurs. 3927 */ 3928 void cfg80211_cqm_rssi_notify(struct net_device *dev, 3929 enum nl80211_cqm_rssi_threshold_event rssi_event, 3930 gfp_t gfp); 3931 3932 /** 3933 * cfg80211_radar_event - radar detection event 3934 * @wiphy: the wiphy 3935 * @chandef: chandef for the current channel 3936 * @gfp: context flags 3937 * 3938 * This function is called when a radar is detected on the current chanenl. 3939 */ 3940 void cfg80211_radar_event(struct wiphy *wiphy, 3941 struct cfg80211_chan_def *chandef, gfp_t gfp); 3942 3943 /** 3944 * cfg80211_cac_event - Channel availability check (CAC) event 3945 * @netdev: network device 3946 * @event: type of event 3947 * @gfp: context flags 3948 * 3949 * This function is called when a Channel availability check (CAC) is finished 3950 * or aborted. This must be called to notify the completion of a CAC process, 3951 * also by full-MAC drivers. 3952 */ 3953 void cfg80211_cac_event(struct net_device *netdev, 3954 enum nl80211_radar_event event, gfp_t gfp); 3955 3956 3957 /** 3958 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 3959 * @dev: network device 3960 * @peer: peer's MAC address 3961 * @num_packets: how many packets were lost -- should be a fixed threshold 3962 * but probably no less than maybe 50, or maybe a throughput dependent 3963 * threshold (to account for temporary interference) 3964 * @gfp: context flags 3965 */ 3966 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 3967 const u8 *peer, u32 num_packets, gfp_t gfp); 3968 3969 /** 3970 * cfg80211_cqm_txe_notify - TX error rate event 3971 * @dev: network device 3972 * @peer: peer's MAC address 3973 * @num_packets: how many packets were lost 3974 * @rate: % of packets which failed transmission 3975 * @intvl: interval (in s) over which the TX failure threshold was breached. 3976 * @gfp: context flags 3977 * 3978 * Notify userspace when configured % TX failures over number of packets in a 3979 * given interval is exceeded. 3980 */ 3981 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, 3982 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); 3983 3984 /** 3985 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 3986 * @dev: network device 3987 * @bssid: BSSID of AP (to avoid races) 3988 * @replay_ctr: new replay counter 3989 * @gfp: allocation flags 3990 */ 3991 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 3992 const u8 *replay_ctr, gfp_t gfp); 3993 3994 /** 3995 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate 3996 * @dev: network device 3997 * @index: candidate index (the smaller the index, the higher the priority) 3998 * @bssid: BSSID of AP 3999 * @preauth: Whether AP advertises support for RSN pre-authentication 4000 * @gfp: allocation flags 4001 */ 4002 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, 4003 const u8 *bssid, bool preauth, gfp_t gfp); 4004 4005 /** 4006 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame 4007 * @dev: The device the frame matched to 4008 * @addr: the transmitter address 4009 * @gfp: context flags 4010 * 4011 * This function is used in AP mode (only!) to inform userspace that 4012 * a spurious class 3 frame was received, to be able to deauth the 4013 * sender. 4014 * Return: %true if the frame was passed to userspace (or this failed 4015 * for a reason other than not having a subscription.) 4016 */ 4017 bool cfg80211_rx_spurious_frame(struct net_device *dev, 4018 const u8 *addr, gfp_t gfp); 4019 4020 /** 4021 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame 4022 * @dev: The device the frame matched to 4023 * @addr: the transmitter address 4024 * @gfp: context flags 4025 * 4026 * This function is used in AP mode (only!) to inform userspace that 4027 * an associated station sent a 4addr frame but that wasn't expected. 4028 * It is allowed and desirable to send this event only once for each 4029 * station to avoid event flooding. 4030 * Return: %true if the frame was passed to userspace (or this failed 4031 * for a reason other than not having a subscription.) 4032 */ 4033 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, 4034 const u8 *addr, gfp_t gfp); 4035 4036 /** 4037 * cfg80211_probe_status - notify userspace about probe status 4038 * @dev: the device the probe was sent on 4039 * @addr: the address of the peer 4040 * @cookie: the cookie filled in @probe_client previously 4041 * @acked: indicates whether probe was acked or not 4042 * @gfp: allocation flags 4043 */ 4044 void cfg80211_probe_status(struct net_device *dev, const u8 *addr, 4045 u64 cookie, bool acked, gfp_t gfp); 4046 4047 /** 4048 * cfg80211_report_obss_beacon - report beacon from other APs 4049 * @wiphy: The wiphy that received the beacon 4050 * @frame: the frame 4051 * @len: length of the frame 4052 * @freq: frequency the frame was received on 4053 * @sig_dbm: signal strength in mBm, or 0 if unknown 4054 * 4055 * Use this function to report to userspace when a beacon was 4056 * received. It is not useful to call this when there is no 4057 * netdev that is in AP/GO mode. 4058 */ 4059 void cfg80211_report_obss_beacon(struct wiphy *wiphy, 4060 const u8 *frame, size_t len, 4061 int freq, int sig_dbm); 4062 4063 /** 4064 * cfg80211_reg_can_beacon - check if beaconing is allowed 4065 * @wiphy: the wiphy 4066 * @chandef: the channel definition 4067 * 4068 * Return: %true if there is no secondary channel or the secondary channel(s) 4069 * can be used for beaconing (i.e. is not a radar channel etc.) 4070 */ 4071 bool cfg80211_reg_can_beacon(struct wiphy *wiphy, 4072 struct cfg80211_chan_def *chandef); 4073 4074 /* 4075 * cfg80211_ch_switch_notify - update wdev channel and notify userspace 4076 * @dev: the device which switched channels 4077 * @chandef: the new channel definition 4078 * 4079 * Acquires wdev_lock, so must only be called from sleepable driver context! 4080 */ 4081 void cfg80211_ch_switch_notify(struct net_device *dev, 4082 struct cfg80211_chan_def *chandef); 4083 4084 /** 4085 * ieee80211_operating_class_to_band - convert operating class to band 4086 * 4087 * @operating_class: the operating class to convert 4088 * @band: band pointer to fill 4089 * 4090 * Returns %true if the conversion was successful, %false otherwise. 4091 */ 4092 bool ieee80211_operating_class_to_band(u8 operating_class, 4093 enum ieee80211_band *band); 4094 4095 /* 4096 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation 4097 * @dev: the device on which the operation is requested 4098 * @peer: the MAC address of the peer device 4099 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or 4100 * NL80211_TDLS_TEARDOWN) 4101 * @reason_code: the reason code for teardown request 4102 * @gfp: allocation flags 4103 * 4104 * This function is used to request userspace to perform TDLS operation that 4105 * requires knowledge of keys, i.e., link setup or teardown when the AP 4106 * connection uses encryption. This is optional mechanism for the driver to use 4107 * if it can automatically determine when a TDLS link could be useful (e.g., 4108 * based on traffic and signal strength for a peer). 4109 */ 4110 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, 4111 enum nl80211_tdls_operation oper, 4112 u16 reason_code, gfp_t gfp); 4113 4114 /* 4115 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) 4116 * @rate: given rate_info to calculate bitrate from 4117 * 4118 * return 0 if MCS index >= 32 4119 */ 4120 u32 cfg80211_calculate_bitrate(struct rate_info *rate); 4121 4122 /** 4123 * cfg80211_unregister_wdev - remove the given wdev 4124 * @wdev: struct wireless_dev to remove 4125 * 4126 * Call this function only for wdevs that have no netdev assigned, 4127 * e.g. P2P Devices. It removes the device from the list so that 4128 * it can no longer be used. It is necessary to call this function 4129 * even when cfg80211 requests the removal of the interface by 4130 * calling the del_virtual_intf() callback. The function must also 4131 * be called when the driver wishes to unregister the wdev, e.g. 4132 * when the device is unbound from the driver. 4133 * 4134 * Requires the RTNL to be held. 4135 */ 4136 void cfg80211_unregister_wdev(struct wireless_dev *wdev); 4137 4138 /** 4139 * struct cfg80211_ft_event - FT Information Elements 4140 * @ies: FT IEs 4141 * @ies_len: length of the FT IE in bytes 4142 * @target_ap: target AP's MAC address 4143 * @ric_ies: RIC IE 4144 * @ric_ies_len: length of the RIC IE in bytes 4145 */ 4146 struct cfg80211_ft_event_params { 4147 const u8 *ies; 4148 size_t ies_len; 4149 const u8 *target_ap; 4150 const u8 *ric_ies; 4151 size_t ric_ies_len; 4152 }; 4153 4154 /** 4155 * cfg80211_ft_event - notify userspace about FT IE and RIC IE 4156 * @netdev: network device 4157 * @ft_event: IE information 4158 */ 4159 void cfg80211_ft_event(struct net_device *netdev, 4160 struct cfg80211_ft_event_params *ft_event); 4161 4162 /** 4163 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer 4164 * @ies: the input IE buffer 4165 * @len: the input length 4166 * @attr: the attribute ID to find 4167 * @buf: output buffer, can be %NULL if the data isn't needed, e.g. 4168 * if the function is only called to get the needed buffer size 4169 * @bufsize: size of the output buffer 4170 * 4171 * The function finds a given P2P attribute in the (vendor) IEs and 4172 * copies its contents to the given buffer. 4173 * 4174 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is 4175 * malformed or the attribute can't be found (respectively), or the 4176 * length of the found attribute (which can be zero). 4177 */ 4178 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, 4179 enum ieee80211_p2p_attr_id attr, 4180 u8 *buf, unsigned int bufsize); 4181 4182 /** 4183 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN 4184 * @wdev: the wireless device reporting the wakeup 4185 * @wakeup: the wakeup report 4186 * @gfp: allocation flags 4187 * 4188 * This function reports that the given device woke up. If it 4189 * caused the wakeup, report the reason(s), otherwise you may 4190 * pass %NULL as the @wakeup parameter to advertise that something 4191 * else caused the wakeup. 4192 */ 4193 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, 4194 struct cfg80211_wowlan_wakeup *wakeup, 4195 gfp_t gfp); 4196 4197 /** 4198 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver. 4199 * 4200 * @wdev: the wireless device for which critical protocol is stopped. 4201 * @gfp: allocation flags 4202 * 4203 * This function can be called by the driver to indicate it has reverted 4204 * operation back to normal. One reason could be that the duration given 4205 * by .crit_proto_start() has expired. 4206 */ 4207 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp); 4208 4209 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 4210 4211 /* wiphy_printk helpers, similar to dev_printk */ 4212 4213 #define wiphy_printk(level, wiphy, format, args...) \ 4214 dev_printk(level, &(wiphy)->dev, format, ##args) 4215 #define wiphy_emerg(wiphy, format, args...) \ 4216 dev_emerg(&(wiphy)->dev, format, ##args) 4217 #define wiphy_alert(wiphy, format, args...) \ 4218 dev_alert(&(wiphy)->dev, format, ##args) 4219 #define wiphy_crit(wiphy, format, args...) \ 4220 dev_crit(&(wiphy)->dev, format, ##args) 4221 #define wiphy_err(wiphy, format, args...) \ 4222 dev_err(&(wiphy)->dev, format, ##args) 4223 #define wiphy_warn(wiphy, format, args...) \ 4224 dev_warn(&(wiphy)->dev, format, ##args) 4225 #define wiphy_notice(wiphy, format, args...) \ 4226 dev_notice(&(wiphy)->dev, format, ##args) 4227 #define wiphy_info(wiphy, format, args...) \ 4228 dev_info(&(wiphy)->dev, format, ##args) 4229 4230 #define wiphy_debug(wiphy, format, args...) \ 4231 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 4232 4233 #define wiphy_dbg(wiphy, format, args...) \ 4234 dev_dbg(&(wiphy)->dev, format, ##args) 4235 4236 #if defined(VERBOSE_DEBUG) 4237 #define wiphy_vdbg wiphy_dbg 4238 #else 4239 #define wiphy_vdbg(wiphy, format, args...) \ 4240 ({ \ 4241 if (0) \ 4242 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 4243 0; \ 4244 }) 4245 #endif 4246 4247 /* 4248 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 4249 * of using a WARN/WARN_ON to get the message out, including the 4250 * file/line information and a backtrace. 4251 */ 4252 #define wiphy_WARN(wiphy, format, args...) \ 4253 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 4254 4255 #endif /* __NET_CFG80211_H */ 4256