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 */ 192 enum ieee80211_rate_flags { 193 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, 194 IEEE80211_RATE_MANDATORY_A = 1<<1, 195 IEEE80211_RATE_MANDATORY_B = 1<<2, 196 IEEE80211_RATE_MANDATORY_G = 1<<3, 197 IEEE80211_RATE_ERP_G = 1<<4, 198 }; 199 200 /** 201 * struct ieee80211_rate - bitrate definition 202 * 203 * This structure describes a bitrate that an 802.11 PHY can 204 * operate with. The two values @hw_value and @hw_value_short 205 * are only for driver use when pointers to this structure are 206 * passed around. 207 * 208 * @flags: rate-specific flags 209 * @bitrate: bitrate in units of 100 Kbps 210 * @hw_value: driver/hardware value for this rate 211 * @hw_value_short: driver/hardware value for this rate when 212 * short preamble is used 213 */ 214 struct ieee80211_rate { 215 u32 flags; 216 u16 bitrate; 217 u16 hw_value, hw_value_short; 218 }; 219 220 /** 221 * struct ieee80211_sta_ht_cap - STA's HT capabilities 222 * 223 * This structure describes most essential parameters needed 224 * to describe 802.11n HT capabilities for an STA. 225 * 226 * @ht_supported: is HT supported by the STA 227 * @cap: HT capabilities map as described in 802.11n spec 228 * @ampdu_factor: Maximum A-MPDU length factor 229 * @ampdu_density: Minimum A-MPDU spacing 230 * @mcs: Supported MCS rates 231 */ 232 struct ieee80211_sta_ht_cap { 233 u16 cap; /* use IEEE80211_HT_CAP_ */ 234 bool ht_supported; 235 u8 ampdu_factor; 236 u8 ampdu_density; 237 struct ieee80211_mcs_info mcs; 238 }; 239 240 /** 241 * struct ieee80211_sta_vht_cap - STA's VHT capabilities 242 * 243 * This structure describes most essential parameters needed 244 * to describe 802.11ac VHT capabilities for an STA. 245 * 246 * @vht_supported: is VHT supported by the STA 247 * @cap: VHT capabilities map as described in 802.11ac spec 248 * @vht_mcs: Supported VHT MCS rates 249 */ 250 struct ieee80211_sta_vht_cap { 251 bool vht_supported; 252 u32 cap; /* use IEEE80211_VHT_CAP_ */ 253 struct ieee80211_vht_mcs_info vht_mcs; 254 }; 255 256 /** 257 * struct ieee80211_supported_band - frequency band definition 258 * 259 * This structure describes a frequency band a wiphy 260 * is able to operate in. 261 * 262 * @channels: Array of channels the hardware can operate in 263 * in this band. 264 * @band: the band this structure represents 265 * @n_channels: Number of channels in @channels 266 * @bitrates: Array of bitrates the hardware can operate with 267 * in this band. Must be sorted to give a valid "supported 268 * rates" IE, i.e. CCK rates first, then OFDM. 269 * @n_bitrates: Number of bitrates in @bitrates 270 * @ht_cap: HT capabilities in this band 271 * @vht_cap: VHT capabilities in this band 272 */ 273 struct ieee80211_supported_band { 274 struct ieee80211_channel *channels; 275 struct ieee80211_rate *bitrates; 276 enum ieee80211_band band; 277 int n_channels; 278 int n_bitrates; 279 struct ieee80211_sta_ht_cap ht_cap; 280 struct ieee80211_sta_vht_cap vht_cap; 281 }; 282 283 /* 284 * Wireless hardware/device configuration structures and methods 285 */ 286 287 /** 288 * DOC: Actions and configuration 289 * 290 * Each wireless device and each virtual interface offer a set of configuration 291 * operations and other actions that are invoked by userspace. Each of these 292 * actions is described in the operations structure, and the parameters these 293 * operations use are described separately. 294 * 295 * Additionally, some operations are asynchronous and expect to get status 296 * information via some functions that drivers need to call. 297 * 298 * Scanning and BSS list handling with its associated functionality is described 299 * in a separate chapter. 300 */ 301 302 /** 303 * struct vif_params - describes virtual interface parameters 304 * @use_4addr: use 4-address frames 305 * @macaddr: address to use for this virtual interface. This will only 306 * be used for non-netdevice interfaces. If this parameter is set 307 * to zero address the driver may determine the address as needed. 308 */ 309 struct vif_params { 310 int use_4addr; 311 u8 macaddr[ETH_ALEN]; 312 }; 313 314 /** 315 * struct key_params - key information 316 * 317 * Information about a key 318 * 319 * @key: key material 320 * @key_len: length of key material 321 * @cipher: cipher suite selector 322 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 323 * with the get_key() callback, must be in little endian, 324 * length given by @seq_len. 325 * @seq_len: length of @seq. 326 */ 327 struct key_params { 328 u8 *key; 329 u8 *seq; 330 int key_len; 331 int seq_len; 332 u32 cipher; 333 }; 334 335 /** 336 * struct cfg80211_chan_def - channel definition 337 * @chan: the (control) channel 338 * @width: channel width 339 * @center_freq1: center frequency of first segment 340 * @center_freq2: center frequency of second segment 341 * (only with 80+80 MHz) 342 */ 343 struct cfg80211_chan_def { 344 struct ieee80211_channel *chan; 345 enum nl80211_chan_width width; 346 u32 center_freq1; 347 u32 center_freq2; 348 }; 349 350 /** 351 * cfg80211_get_chandef_type - return old channel type from chandef 352 * @chandef: the channel definition 353 * 354 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given 355 * chandef, which must have a bandwidth allowing this conversion. 356 */ 357 static inline enum nl80211_channel_type 358 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef) 359 { 360 switch (chandef->width) { 361 case NL80211_CHAN_WIDTH_20_NOHT: 362 return NL80211_CHAN_NO_HT; 363 case NL80211_CHAN_WIDTH_20: 364 return NL80211_CHAN_HT20; 365 case NL80211_CHAN_WIDTH_40: 366 if (chandef->center_freq1 > chandef->chan->center_freq) 367 return NL80211_CHAN_HT40PLUS; 368 return NL80211_CHAN_HT40MINUS; 369 default: 370 WARN_ON(1); 371 return NL80211_CHAN_NO_HT; 372 } 373 } 374 375 /** 376 * cfg80211_chandef_create - create channel definition using channel type 377 * @chandef: the channel definition struct to fill 378 * @channel: the control channel 379 * @chantype: the channel type 380 * 381 * Given a channel type, create a channel definition. 382 */ 383 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, 384 struct ieee80211_channel *channel, 385 enum nl80211_channel_type chantype); 386 387 /** 388 * cfg80211_chandef_identical - check if two channel definitions are identical 389 * @chandef1: first channel definition 390 * @chandef2: second channel definition 391 * 392 * Return: %true if the channels defined by the channel definitions are 393 * identical, %false otherwise. 394 */ 395 static inline bool 396 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1, 397 const struct cfg80211_chan_def *chandef2) 398 { 399 return (chandef1->chan == chandef2->chan && 400 chandef1->width == chandef2->width && 401 chandef1->center_freq1 == chandef2->center_freq1 && 402 chandef1->center_freq2 == chandef2->center_freq2); 403 } 404 405 /** 406 * cfg80211_chandef_compatible - check if two channel definitions are compatible 407 * @chandef1: first channel definition 408 * @chandef2: second channel definition 409 * 410 * Return: %NULL if the given channel definitions are incompatible, 411 * chandef1 or chandef2 otherwise. 412 */ 413 const struct cfg80211_chan_def * 414 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, 415 const struct cfg80211_chan_def *chandef2); 416 417 /** 418 * cfg80211_chandef_valid - check if a channel definition is valid 419 * @chandef: the channel definition to check 420 * Return: %true if the channel definition is valid. %false otherwise. 421 */ 422 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef); 423 424 /** 425 * cfg80211_chandef_usable - check if secondary channels can be used 426 * @wiphy: the wiphy to validate against 427 * @chandef: the channel definition to check 428 * @prohibited_flags: the regulatory channel flags that must not be set 429 * Return: %true if secondary channels are usable. %false otherwise. 430 */ 431 bool cfg80211_chandef_usable(struct wiphy *wiphy, 432 const struct cfg80211_chan_def *chandef, 433 u32 prohibited_flags); 434 435 /** 436 * enum survey_info_flags - survey information flags 437 * 438 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 439 * @SURVEY_INFO_IN_USE: channel is currently being used 440 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in 441 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in 442 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in 443 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in 444 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in 445 * 446 * Used by the driver to indicate which info in &struct survey_info 447 * it has filled in during the get_survey(). 448 */ 449 enum survey_info_flags { 450 SURVEY_INFO_NOISE_DBM = 1<<0, 451 SURVEY_INFO_IN_USE = 1<<1, 452 SURVEY_INFO_CHANNEL_TIME = 1<<2, 453 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, 454 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, 455 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, 456 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, 457 }; 458 459 /** 460 * struct survey_info - channel survey response 461 * 462 * @channel: the channel this survey record reports, mandatory 463 * @filled: bitflag of flags from &enum survey_info_flags 464 * @noise: channel noise in dBm. This and all following fields are 465 * optional 466 * @channel_time: amount of time in ms the radio spent on the channel 467 * @channel_time_busy: amount of time the primary channel was sensed busy 468 * @channel_time_ext_busy: amount of time the extension channel was sensed busy 469 * @channel_time_rx: amount of time the radio spent receiving data 470 * @channel_time_tx: amount of time the radio spent transmitting data 471 * 472 * Used by dump_survey() to report back per-channel survey information. 473 * 474 * This structure can later be expanded with things like 475 * channel duty cycle etc. 476 */ 477 struct survey_info { 478 struct ieee80211_channel *channel; 479 u64 channel_time; 480 u64 channel_time_busy; 481 u64 channel_time_ext_busy; 482 u64 channel_time_rx; 483 u64 channel_time_tx; 484 u32 filled; 485 s8 noise; 486 }; 487 488 /** 489 * struct cfg80211_crypto_settings - Crypto settings 490 * @wpa_versions: indicates which, if any, WPA versions are enabled 491 * (from enum nl80211_wpa_versions) 492 * @cipher_group: group key cipher suite (or 0 if unset) 493 * @n_ciphers_pairwise: number of AP supported unicast ciphers 494 * @ciphers_pairwise: unicast key cipher suites 495 * @n_akm_suites: number of AKM suites 496 * @akm_suites: AKM suites 497 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 498 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 499 * required to assume that the port is unauthorized until authorized by 500 * user space. Otherwise, port is marked authorized by default. 501 * @control_port_ethertype: the control port protocol that should be 502 * allowed through even on unauthorized ports 503 * @control_port_no_encrypt: TRUE to prevent encryption of control port 504 * protocol frames. 505 */ 506 struct cfg80211_crypto_settings { 507 u32 wpa_versions; 508 u32 cipher_group; 509 int n_ciphers_pairwise; 510 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 511 int n_akm_suites; 512 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 513 bool control_port; 514 __be16 control_port_ethertype; 515 bool control_port_no_encrypt; 516 }; 517 518 /** 519 * struct cfg80211_beacon_data - beacon data 520 * @head: head portion of beacon (before TIM IE) 521 * or %NULL if not changed 522 * @tail: tail portion of beacon (after TIM IE) 523 * or %NULL if not changed 524 * @head_len: length of @head 525 * @tail_len: length of @tail 526 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL 527 * @beacon_ies_len: length of beacon_ies in octets 528 * @proberesp_ies: extra information element(s) to add into Probe Response 529 * frames or %NULL 530 * @proberesp_ies_len: length of proberesp_ies in octets 531 * @assocresp_ies: extra information element(s) to add into (Re)Association 532 * Response frames or %NULL 533 * @assocresp_ies_len: length of assocresp_ies in octets 534 * @probe_resp_len: length of probe response template (@probe_resp) 535 * @probe_resp: probe response template (AP mode only) 536 */ 537 struct cfg80211_beacon_data { 538 const u8 *head, *tail; 539 const u8 *beacon_ies; 540 const u8 *proberesp_ies; 541 const u8 *assocresp_ies; 542 const u8 *probe_resp; 543 544 size_t head_len, tail_len; 545 size_t beacon_ies_len; 546 size_t proberesp_ies_len; 547 size_t assocresp_ies_len; 548 size_t probe_resp_len; 549 }; 550 551 struct mac_address { 552 u8 addr[ETH_ALEN]; 553 }; 554 555 /** 556 * struct cfg80211_acl_data - Access control list data 557 * 558 * @acl_policy: ACL policy to be applied on the station's 559 * entry specified by mac_addr 560 * @n_acl_entries: Number of MAC address entries passed 561 * @mac_addrs: List of MAC addresses of stations to be used for ACL 562 */ 563 struct cfg80211_acl_data { 564 enum nl80211_acl_policy acl_policy; 565 int n_acl_entries; 566 567 /* Keep it last */ 568 struct mac_address mac_addrs[]; 569 }; 570 571 /** 572 * struct cfg80211_ap_settings - AP configuration 573 * 574 * Used to configure an AP interface. 575 * 576 * @chandef: defines the channel to use 577 * @beacon: beacon data 578 * @beacon_interval: beacon interval 579 * @dtim_period: DTIM period 580 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from 581 * user space) 582 * @ssid_len: length of @ssid 583 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames 584 * @crypto: crypto settings 585 * @privacy: the BSS uses privacy 586 * @auth_type: Authentication type (algorithm) 587 * @inactivity_timeout: time in seconds to determine station's inactivity. 588 * @p2p_ctwindow: P2P CT Window 589 * @p2p_opp_ps: P2P opportunistic PS 590 * @acl: ACL configuration used by the drivers which has support for 591 * MAC address based access control 592 * @radar_required: set if radar detection is required 593 */ 594 struct cfg80211_ap_settings { 595 struct cfg80211_chan_def chandef; 596 597 struct cfg80211_beacon_data beacon; 598 599 int beacon_interval, dtim_period; 600 const u8 *ssid; 601 size_t ssid_len; 602 enum nl80211_hidden_ssid hidden_ssid; 603 struct cfg80211_crypto_settings crypto; 604 bool privacy; 605 enum nl80211_auth_type auth_type; 606 int inactivity_timeout; 607 u8 p2p_ctwindow; 608 bool p2p_opp_ps; 609 const struct cfg80211_acl_data *acl; 610 bool radar_required; 611 }; 612 613 /** 614 * enum station_parameters_apply_mask - station parameter values to apply 615 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) 616 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability 617 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state 618 * 619 * Not all station parameters have in-band "no change" signalling, 620 * for those that don't these flags will are used. 621 */ 622 enum station_parameters_apply_mask { 623 STATION_PARAM_APPLY_UAPSD = BIT(0), 624 STATION_PARAM_APPLY_CAPABILITY = BIT(1), 625 STATION_PARAM_APPLY_PLINK_STATE = BIT(2), 626 }; 627 628 /** 629 * struct station_parameters - station parameters 630 * 631 * Used to change and create a new station. 632 * 633 * @vlan: vlan interface station should belong to 634 * @supported_rates: supported rates in IEEE 802.11 format 635 * (or NULL for no change) 636 * @supported_rates_len: number of supported rates 637 * @sta_flags_mask: station flags that changed 638 * (bitmask of BIT(NL80211_STA_FLAG_...)) 639 * @sta_flags_set: station flags values 640 * (bitmask of BIT(NL80211_STA_FLAG_...)) 641 * @listen_interval: listen interval or -1 for no change 642 * @aid: AID or zero for no change 643 * @plink_action: plink action to take 644 * @plink_state: set the peer link state for a station 645 * @ht_capa: HT capabilities of station 646 * @vht_capa: VHT capabilities of station 647 * @uapsd_queues: bitmap of queues configured for uapsd. same format 648 * as the AC bitmap in the QoS info field 649 * @max_sp: max Service Period. same format as the MAX_SP in the 650 * QoS info field (but already shifted down) 651 * @sta_modify_mask: bitmap indicating which parameters changed 652 * (for those that don't have a natural "no change" value), 653 * see &enum station_parameters_apply_mask 654 * @local_pm: local link-specific mesh power save mode (no change when set 655 * to unknown) 656 * @capability: station capability 657 * @ext_capab: extended capabilities of the station 658 * @ext_capab_len: number of extended capabilities 659 */ 660 struct station_parameters { 661 const u8 *supported_rates; 662 struct net_device *vlan; 663 u32 sta_flags_mask, sta_flags_set; 664 u32 sta_modify_mask; 665 int listen_interval; 666 u16 aid; 667 u8 supported_rates_len; 668 u8 plink_action; 669 u8 plink_state; 670 const struct ieee80211_ht_cap *ht_capa; 671 const struct ieee80211_vht_cap *vht_capa; 672 u8 uapsd_queues; 673 u8 max_sp; 674 enum nl80211_mesh_power_mode local_pm; 675 u16 capability; 676 const u8 *ext_capab; 677 u8 ext_capab_len; 678 }; 679 680 /** 681 * enum cfg80211_station_type - the type of station being modified 682 * @CFG80211_STA_AP_CLIENT: client of an AP interface 683 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has 684 * the AP MLME in the device 685 * @CFG80211_STA_AP_STA: AP station on managed interface 686 * @CFG80211_STA_IBSS: IBSS station 687 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry 688 * while TDLS setup is in progress, it moves out of this state when 689 * being marked authorized; use this only if TDLS with external setup is 690 * supported/used) 691 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active 692 * entry that is operating, has been marked authorized by userspace) 693 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed) 694 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed) 695 */ 696 enum cfg80211_station_type { 697 CFG80211_STA_AP_CLIENT, 698 CFG80211_STA_AP_MLME_CLIENT, 699 CFG80211_STA_AP_STA, 700 CFG80211_STA_IBSS, 701 CFG80211_STA_TDLS_PEER_SETUP, 702 CFG80211_STA_TDLS_PEER_ACTIVE, 703 CFG80211_STA_MESH_PEER_KERNEL, 704 CFG80211_STA_MESH_PEER_USER, 705 }; 706 707 /** 708 * cfg80211_check_station_change - validate parameter changes 709 * @wiphy: the wiphy this operates on 710 * @params: the new parameters for a station 711 * @statype: the type of station being modified 712 * 713 * Utility function for the @change_station driver method. Call this function 714 * with the appropriate station type looking up the station (and checking that 715 * it exists). It will verify whether the station change is acceptable, and if 716 * not will return an error code. Note that it may modify the parameters for 717 * backward compatibility reasons, so don't use them before calling this. 718 */ 719 int cfg80211_check_station_change(struct wiphy *wiphy, 720 struct station_parameters *params, 721 enum cfg80211_station_type statype); 722 723 /** 724 * enum station_info_flags - station information flags 725 * 726 * Used by the driver to indicate which info in &struct station_info 727 * it has filled in during get_station() or dump_station(). 728 * 729 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 730 * @STATION_INFO_RX_BYTES: @rx_bytes filled 731 * @STATION_INFO_TX_BYTES: @tx_bytes filled 732 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value 733 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value 734 * @STATION_INFO_LLID: @llid filled 735 * @STATION_INFO_PLID: @plid filled 736 * @STATION_INFO_PLINK_STATE: @plink_state filled 737 * @STATION_INFO_SIGNAL: @signal filled 738 * @STATION_INFO_TX_BITRATE: @txrate fields are filled 739 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 740 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value 741 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value 742 * @STATION_INFO_TX_RETRIES: @tx_retries filled 743 * @STATION_INFO_TX_FAILED: @tx_failed filled 744 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled 745 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled 746 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled 747 * @STATION_INFO_BSS_PARAM: @bss_param filled 748 * @STATION_INFO_CONNECTED_TIME: @connected_time filled 749 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled 750 * @STATION_INFO_STA_FLAGS: @sta_flags filled 751 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled 752 * @STATION_INFO_T_OFFSET: @t_offset filled 753 * @STATION_INFO_LOCAL_PM: @local_pm filled 754 * @STATION_INFO_PEER_PM: @peer_pm filled 755 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled 756 */ 757 enum station_info_flags { 758 STATION_INFO_INACTIVE_TIME = 1<<0, 759 STATION_INFO_RX_BYTES = 1<<1, 760 STATION_INFO_TX_BYTES = 1<<2, 761 STATION_INFO_LLID = 1<<3, 762 STATION_INFO_PLID = 1<<4, 763 STATION_INFO_PLINK_STATE = 1<<5, 764 STATION_INFO_SIGNAL = 1<<6, 765 STATION_INFO_TX_BITRATE = 1<<7, 766 STATION_INFO_RX_PACKETS = 1<<8, 767 STATION_INFO_TX_PACKETS = 1<<9, 768 STATION_INFO_TX_RETRIES = 1<<10, 769 STATION_INFO_TX_FAILED = 1<<11, 770 STATION_INFO_RX_DROP_MISC = 1<<12, 771 STATION_INFO_SIGNAL_AVG = 1<<13, 772 STATION_INFO_RX_BITRATE = 1<<14, 773 STATION_INFO_BSS_PARAM = 1<<15, 774 STATION_INFO_CONNECTED_TIME = 1<<16, 775 STATION_INFO_ASSOC_REQ_IES = 1<<17, 776 STATION_INFO_STA_FLAGS = 1<<18, 777 STATION_INFO_BEACON_LOSS_COUNT = 1<<19, 778 STATION_INFO_T_OFFSET = 1<<20, 779 STATION_INFO_LOCAL_PM = 1<<21, 780 STATION_INFO_PEER_PM = 1<<22, 781 STATION_INFO_NONPEER_PM = 1<<23, 782 STATION_INFO_RX_BYTES64 = 1<<24, 783 STATION_INFO_TX_BYTES64 = 1<<25, 784 }; 785 786 /** 787 * enum station_info_rate_flags - bitrate info flags 788 * 789 * Used by the driver to indicate the specific rate transmission 790 * type for 802.11n transmissions. 791 * 792 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS 793 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS 794 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission 795 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission 796 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission 797 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission 798 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 799 * @RATE_INFO_FLAGS_60G: 60GHz MCS 800 */ 801 enum rate_info_flags { 802 RATE_INFO_FLAGS_MCS = BIT(0), 803 RATE_INFO_FLAGS_VHT_MCS = BIT(1), 804 RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2), 805 RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3), 806 RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4), 807 RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5), 808 RATE_INFO_FLAGS_SHORT_GI = BIT(6), 809 RATE_INFO_FLAGS_60G = BIT(7), 810 }; 811 812 /** 813 * struct rate_info - bitrate information 814 * 815 * Information about a receiving or transmitting bitrate 816 * 817 * @flags: bitflag of flags from &enum rate_info_flags 818 * @mcs: mcs index if struct describes a 802.11n bitrate 819 * @legacy: bitrate in 100kbit/s for 802.11abg 820 * @nss: number of streams (VHT only) 821 */ 822 struct rate_info { 823 u8 flags; 824 u8 mcs; 825 u16 legacy; 826 u8 nss; 827 }; 828 829 /** 830 * enum station_info_rate_flags - bitrate info flags 831 * 832 * Used by the driver to indicate the specific rate transmission 833 * type for 802.11n transmissions. 834 * 835 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 836 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 837 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 838 */ 839 enum bss_param_flags { 840 BSS_PARAM_FLAGS_CTS_PROT = 1<<0, 841 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, 842 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, 843 }; 844 845 /** 846 * struct sta_bss_parameters - BSS parameters for the attached station 847 * 848 * Information about the currently associated BSS 849 * 850 * @flags: bitflag of flags from &enum bss_param_flags 851 * @dtim_period: DTIM period for the BSS 852 * @beacon_interval: beacon interval 853 */ 854 struct sta_bss_parameters { 855 u8 flags; 856 u8 dtim_period; 857 u16 beacon_interval; 858 }; 859 860 /** 861 * struct station_info - station information 862 * 863 * Station information filled by driver for get_station() and dump_station. 864 * 865 * @filled: bitflag of flags from &enum station_info_flags 866 * @connected_time: time(in secs) since a station is last connected 867 * @inactive_time: time since last station activity (tx/rx) in milliseconds 868 * @rx_bytes: bytes received from this station 869 * @tx_bytes: bytes transmitted to this station 870 * @llid: mesh local link id 871 * @plid: mesh peer link id 872 * @plink_state: mesh peer link state 873 * @signal: The signal strength, type depends on the wiphy's signal_type. 874 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 875 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. 876 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 877 * @txrate: current unicast bitrate from this station 878 * @rxrate: current unicast bitrate to this station 879 * @rx_packets: packets received from this station 880 * @tx_packets: packets transmitted to this station 881 * @tx_retries: cumulative retry counts 882 * @tx_failed: number of failed transmissions (retries exceeded, no ACK) 883 * @rx_dropped_misc: Dropped for un-specified reason. 884 * @bss_param: current BSS parameters 885 * @generation: generation number for nl80211 dumps. 886 * This number should increase every time the list of stations 887 * changes, i.e. when a station is added or removed, so that 888 * userspace can tell whether it got a consistent snapshot. 889 * @assoc_req_ies: IEs from (Re)Association Request. 890 * This is used only when in AP mode with drivers that do not use 891 * user space MLME/SME implementation. The information is provided for 892 * the cfg80211_new_sta() calls to notify user space of the IEs. 893 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. 894 * @sta_flags: station flags mask & values 895 * @beacon_loss_count: Number of times beacon loss event has triggered. 896 * @t_offset: Time offset of the station relative to this host. 897 * @local_pm: local mesh STA power save mode 898 * @peer_pm: peer mesh STA power save mode 899 * @nonpeer_pm: non-peer mesh STA power save mode 900 */ 901 struct station_info { 902 u32 filled; 903 u32 connected_time; 904 u32 inactive_time; 905 u64 rx_bytes; 906 u64 tx_bytes; 907 u16 llid; 908 u16 plid; 909 u8 plink_state; 910 s8 signal; 911 s8 signal_avg; 912 struct rate_info txrate; 913 struct rate_info rxrate; 914 u32 rx_packets; 915 u32 tx_packets; 916 u32 tx_retries; 917 u32 tx_failed; 918 u32 rx_dropped_misc; 919 struct sta_bss_parameters bss_param; 920 struct nl80211_sta_flag_update sta_flags; 921 922 int generation; 923 924 const u8 *assoc_req_ies; 925 size_t assoc_req_ies_len; 926 927 u32 beacon_loss_count; 928 s64 t_offset; 929 enum nl80211_mesh_power_mode local_pm; 930 enum nl80211_mesh_power_mode peer_pm; 931 enum nl80211_mesh_power_mode nonpeer_pm; 932 933 /* 934 * Note: Add a new enum station_info_flags value for each new field and 935 * use it to check which fields are initialized. 936 */ 937 }; 938 939 /** 940 * enum monitor_flags - monitor flags 941 * 942 * Monitor interface configuration flags. Note that these must be the bits 943 * according to the nl80211 flags. 944 * 945 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 946 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 947 * @MONITOR_FLAG_CONTROL: pass control frames 948 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 949 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 950 */ 951 enum monitor_flags { 952 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 953 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 954 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 955 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 956 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 957 }; 958 959 /** 960 * enum mpath_info_flags - mesh path information flags 961 * 962 * Used by the driver to indicate which info in &struct mpath_info it has filled 963 * in during get_station() or dump_station(). 964 * 965 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 966 * @MPATH_INFO_SN: @sn filled 967 * @MPATH_INFO_METRIC: @metric filled 968 * @MPATH_INFO_EXPTIME: @exptime filled 969 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 970 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 971 * @MPATH_INFO_FLAGS: @flags filled 972 */ 973 enum mpath_info_flags { 974 MPATH_INFO_FRAME_QLEN = BIT(0), 975 MPATH_INFO_SN = BIT(1), 976 MPATH_INFO_METRIC = BIT(2), 977 MPATH_INFO_EXPTIME = BIT(3), 978 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 979 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 980 MPATH_INFO_FLAGS = BIT(6), 981 }; 982 983 /** 984 * struct mpath_info - mesh path information 985 * 986 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 987 * 988 * @filled: bitfield of flags from &enum mpath_info_flags 989 * @frame_qlen: number of queued frames for this destination 990 * @sn: target sequence number 991 * @metric: metric (cost) of this mesh path 992 * @exptime: expiration time for the mesh path from now, in msecs 993 * @flags: mesh path flags 994 * @discovery_timeout: total mesh path discovery timeout, in msecs 995 * @discovery_retries: mesh path discovery retries 996 * @generation: generation number for nl80211 dumps. 997 * This number should increase every time the list of mesh paths 998 * changes, i.e. when a station is added or removed, so that 999 * userspace can tell whether it got a consistent snapshot. 1000 */ 1001 struct mpath_info { 1002 u32 filled; 1003 u32 frame_qlen; 1004 u32 sn; 1005 u32 metric; 1006 u32 exptime; 1007 u32 discovery_timeout; 1008 u8 discovery_retries; 1009 u8 flags; 1010 1011 int generation; 1012 }; 1013 1014 /** 1015 * struct bss_parameters - BSS parameters 1016 * 1017 * Used to change BSS parameters (mainly for AP mode). 1018 * 1019 * @use_cts_prot: Whether to use CTS protection 1020 * (0 = no, 1 = yes, -1 = do not change) 1021 * @use_short_preamble: Whether the use of short preambles is allowed 1022 * (0 = no, 1 = yes, -1 = do not change) 1023 * @use_short_slot_time: Whether the use of short slot time is allowed 1024 * (0 = no, 1 = yes, -1 = do not change) 1025 * @basic_rates: basic rates in IEEE 802.11 format 1026 * (or NULL for no change) 1027 * @basic_rates_len: number of basic rates 1028 * @ap_isolate: do not forward packets between connected stations 1029 * @ht_opmode: HT Operation mode 1030 * (u16 = opmode, -1 = do not change) 1031 * @p2p_ctwindow: P2P CT Window (-1 = no change) 1032 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change) 1033 */ 1034 struct bss_parameters { 1035 int use_cts_prot; 1036 int use_short_preamble; 1037 int use_short_slot_time; 1038 u8 *basic_rates; 1039 u8 basic_rates_len; 1040 int ap_isolate; 1041 int ht_opmode; 1042 s8 p2p_ctwindow, p2p_opp_ps; 1043 }; 1044 1045 /** 1046 * struct mesh_config - 802.11s mesh configuration 1047 * 1048 * These parameters can be changed while the mesh is active. 1049 * 1050 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used 1051 * by the Mesh Peering Open message 1052 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units 1053 * used by the Mesh Peering Open message 1054 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by 1055 * the mesh peering management to close a mesh peering 1056 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this 1057 * mesh interface 1058 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can 1059 * be sent to establish a new peer link instance in a mesh 1060 * @dot11MeshTTL: the value of TTL field set at a source mesh STA 1061 * @element_ttl: the value of TTL field set at a mesh STA for path selection 1062 * elements 1063 * @auto_open_plinks: whether we should automatically open peer links when we 1064 * detect compatible mesh peers 1065 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to 1066 * synchronize to for 11s default synchronization method 1067 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ 1068 * that an originator mesh STA can send to a particular path target 1069 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds 1070 * @min_discovery_timeout: the minimum length of time to wait until giving up on 1071 * a path discovery in milliseconds 1072 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs 1073 * receiving a PREQ shall consider the forwarding information from the 1074 * root to be valid. (TU = time unit) 1075 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during 1076 * which a mesh STA can send only one action frame containing a PREQ 1077 * element 1078 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during 1079 * which a mesh STA can send only one Action frame containing a PERR 1080 * element 1081 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that 1082 * it takes for an HWMP information element to propagate across the mesh 1083 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA 1084 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root 1085 * announcements are transmitted 1086 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh 1087 * station has access to a broader network beyond the MBSS. (This is 1088 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true 1089 * only means that the station will announce others it's a mesh gate, but 1090 * not necessarily using the gate announcement protocol. Still keeping the 1091 * same nomenclature to be in sync with the spec) 1092 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding 1093 * entity (default is TRUE - forwarding entity) 1094 * @rssi_threshold: the threshold for average signal strength of candidate 1095 * station to establish a peer link 1096 * @ht_opmode: mesh HT protection mode 1097 * 1098 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs 1099 * receiving a proactive PREQ shall consider the forwarding information to 1100 * the root mesh STA to be valid. 1101 * 1102 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive 1103 * PREQs are transmitted. 1104 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) 1105 * during which a mesh STA can send only one Action frame containing 1106 * a PREQ element for root path confirmation. 1107 * @power_mode: The default mesh power save mode which will be the initial 1108 * setting for new peer links. 1109 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake 1110 * after transmitting its beacon. 1111 */ 1112 struct mesh_config { 1113 u16 dot11MeshRetryTimeout; 1114 u16 dot11MeshConfirmTimeout; 1115 u16 dot11MeshHoldingTimeout; 1116 u16 dot11MeshMaxPeerLinks; 1117 u8 dot11MeshMaxRetries; 1118 u8 dot11MeshTTL; 1119 u8 element_ttl; 1120 bool auto_open_plinks; 1121 u32 dot11MeshNbrOffsetMaxNeighbor; 1122 u8 dot11MeshHWMPmaxPREQretries; 1123 u32 path_refresh_time; 1124 u16 min_discovery_timeout; 1125 u32 dot11MeshHWMPactivePathTimeout; 1126 u16 dot11MeshHWMPpreqMinInterval; 1127 u16 dot11MeshHWMPperrMinInterval; 1128 u16 dot11MeshHWMPnetDiameterTraversalTime; 1129 u8 dot11MeshHWMPRootMode; 1130 u16 dot11MeshHWMPRannInterval; 1131 bool dot11MeshGateAnnouncementProtocol; 1132 bool dot11MeshForwarding; 1133 s32 rssi_threshold; 1134 u16 ht_opmode; 1135 u32 dot11MeshHWMPactivePathToRootTimeout; 1136 u16 dot11MeshHWMProotInterval; 1137 u16 dot11MeshHWMPconfirmationInterval; 1138 enum nl80211_mesh_power_mode power_mode; 1139 u16 dot11MeshAwakeWindowDuration; 1140 }; 1141 1142 /** 1143 * struct mesh_setup - 802.11s mesh setup configuration 1144 * @chandef: defines the channel to use 1145 * @mesh_id: the mesh ID 1146 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 1147 * @sync_method: which synchronization method to use 1148 * @path_sel_proto: which path selection protocol to use 1149 * @path_metric: which metric to use 1150 * @ie: vendor information elements (optional) 1151 * @ie_len: length of vendor information elements 1152 * @is_authenticated: this mesh requires authentication 1153 * @is_secure: this mesh uses security 1154 * @user_mpm: userspace handles all MPM functions 1155 * @dtim_period: DTIM period to use 1156 * @beacon_interval: beacon interval to use 1157 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a] 1158 * 1159 * These parameters are fixed when the mesh is created. 1160 */ 1161 struct mesh_setup { 1162 struct cfg80211_chan_def chandef; 1163 const u8 *mesh_id; 1164 u8 mesh_id_len; 1165 u8 sync_method; 1166 u8 path_sel_proto; 1167 u8 path_metric; 1168 const u8 *ie; 1169 u8 ie_len; 1170 bool is_authenticated; 1171 bool is_secure; 1172 bool user_mpm; 1173 u8 dtim_period; 1174 u16 beacon_interval; 1175 int mcast_rate[IEEE80211_NUM_BANDS]; 1176 }; 1177 1178 /** 1179 * struct ieee80211_txq_params - TX queue parameters 1180 * @ac: AC identifier 1181 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 1182 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 1183 * 1..32767] 1184 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 1185 * 1..32767] 1186 * @aifs: Arbitration interframe space [0..255] 1187 */ 1188 struct ieee80211_txq_params { 1189 enum nl80211_ac ac; 1190 u16 txop; 1191 u16 cwmin; 1192 u16 cwmax; 1193 u8 aifs; 1194 }; 1195 1196 /** 1197 * DOC: Scanning and BSS list handling 1198 * 1199 * The scanning process itself is fairly simple, but cfg80211 offers quite 1200 * a bit of helper functionality. To start a scan, the scan operation will 1201 * be invoked with a scan definition. This scan definition contains the 1202 * channels to scan, and the SSIDs to send probe requests for (including the 1203 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 1204 * probe. Additionally, a scan request may contain extra information elements 1205 * that should be added to the probe request. The IEs are guaranteed to be 1206 * well-formed, and will not exceed the maximum length the driver advertised 1207 * in the wiphy structure. 1208 * 1209 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 1210 * it is responsible for maintaining the BSS list; the driver should not 1211 * maintain a list itself. For this notification, various functions exist. 1212 * 1213 * Since drivers do not maintain a BSS list, there are also a number of 1214 * functions to search for a BSS and obtain information about it from the 1215 * BSS structure cfg80211 maintains. The BSS list is also made available 1216 * to userspace. 1217 */ 1218 1219 /** 1220 * struct cfg80211_ssid - SSID description 1221 * @ssid: the SSID 1222 * @ssid_len: length of the ssid 1223 */ 1224 struct cfg80211_ssid { 1225 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1226 u8 ssid_len; 1227 }; 1228 1229 /** 1230 * struct cfg80211_scan_request - scan request description 1231 * 1232 * @ssids: SSIDs to scan for (active scan only) 1233 * @n_ssids: number of SSIDs 1234 * @channels: channels to scan on. 1235 * @n_channels: total number of channels to scan 1236 * @ie: optional information element(s) to add into Probe Request or %NULL 1237 * @ie_len: length of ie in octets 1238 * @flags: bit field of flags controlling operation 1239 * @rates: bitmap of rates to advertise for each band 1240 * @wiphy: the wiphy this was for 1241 * @scan_start: time (in jiffies) when the scan started 1242 * @wdev: the wireless device to scan for 1243 * @aborted: (internal) scan request was notified as aborted 1244 * @no_cck: used to send probe requests at non CCK rate in 2GHz band 1245 */ 1246 struct cfg80211_scan_request { 1247 struct cfg80211_ssid *ssids; 1248 int n_ssids; 1249 u32 n_channels; 1250 const u8 *ie; 1251 size_t ie_len; 1252 u32 flags; 1253 1254 u32 rates[IEEE80211_NUM_BANDS]; 1255 1256 struct wireless_dev *wdev; 1257 1258 /* internal */ 1259 struct wiphy *wiphy; 1260 unsigned long scan_start; 1261 bool aborted; 1262 bool no_cck; 1263 1264 /* keep last */ 1265 struct ieee80211_channel *channels[0]; 1266 }; 1267 1268 /** 1269 * struct cfg80211_match_set - sets of attributes to match 1270 * 1271 * @ssid: SSID to be matched 1272 */ 1273 struct cfg80211_match_set { 1274 struct cfg80211_ssid ssid; 1275 }; 1276 1277 /** 1278 * struct cfg80211_sched_scan_request - scheduled scan request description 1279 * 1280 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 1281 * @n_ssids: number of SSIDs 1282 * @n_channels: total number of channels to scan 1283 * @interval: interval between each scheduled scan cycle 1284 * @ie: optional information element(s) to add into Probe Request or %NULL 1285 * @ie_len: length of ie in octets 1286 * @flags: bit field of flags controlling operation 1287 * @match_sets: sets of parameters to be matched for a scan result 1288 * entry to be considered valid and to be passed to the host 1289 * (others are filtered out). 1290 * If ommited, all results are passed. 1291 * @n_match_sets: number of match sets 1292 * @wiphy: the wiphy this was for 1293 * @dev: the interface 1294 * @scan_start: start time of the scheduled scan 1295 * @channels: channels to scan 1296 * @rssi_thold: don't report scan results below this threshold (in s32 dBm) 1297 */ 1298 struct cfg80211_sched_scan_request { 1299 struct cfg80211_ssid *ssids; 1300 int n_ssids; 1301 u32 n_channels; 1302 u32 interval; 1303 const u8 *ie; 1304 size_t ie_len; 1305 u32 flags; 1306 struct cfg80211_match_set *match_sets; 1307 int n_match_sets; 1308 s32 rssi_thold; 1309 1310 /* internal */ 1311 struct wiphy *wiphy; 1312 struct net_device *dev; 1313 unsigned long scan_start; 1314 1315 /* keep last */ 1316 struct ieee80211_channel *channels[0]; 1317 }; 1318 1319 /** 1320 * enum cfg80211_signal_type - signal type 1321 * 1322 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 1323 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 1324 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 1325 */ 1326 enum cfg80211_signal_type { 1327 CFG80211_SIGNAL_TYPE_NONE, 1328 CFG80211_SIGNAL_TYPE_MBM, 1329 CFG80211_SIGNAL_TYPE_UNSPEC, 1330 }; 1331 1332 /** 1333 * struct cfg80211_bss_ie_data - BSS entry IE data 1334 * @tsf: TSF contained in the frame that carried these IEs 1335 * @rcu_head: internal use, for freeing 1336 * @len: length of the IEs 1337 * @data: IE data 1338 */ 1339 struct cfg80211_bss_ies { 1340 u64 tsf; 1341 struct rcu_head rcu_head; 1342 int len; 1343 u8 data[]; 1344 }; 1345 1346 /** 1347 * struct cfg80211_bss - BSS description 1348 * 1349 * This structure describes a BSS (which may also be a mesh network) 1350 * for use in scan results and similar. 1351 * 1352 * @channel: channel this BSS is on 1353 * @bssid: BSSID of the BSS 1354 * @beacon_interval: the beacon interval as from the frame 1355 * @capability: the capability field in host byte order 1356 * @ies: the information elements (Note that there is no guarantee that these 1357 * are well-formed!); this is a pointer to either the beacon_ies or 1358 * proberesp_ies depending on whether Probe Response frame has been 1359 * received. It is always non-%NULL. 1360 * @beacon_ies: the information elements from the last Beacon frame 1361 * (implementation note: if @hidden_beacon_bss is set this struct doesn't 1362 * own the beacon_ies, but they're just pointers to the ones from the 1363 * @hidden_beacon_bss struct) 1364 * @proberesp_ies: the information elements from the last Probe Response frame 1365 * @hidden_beacon_bss: in case this BSS struct represents a probe response from 1366 * a BSS that hides the SSID in its beacon, this points to the BSS struct 1367 * that holds the beacon data. @beacon_ies is still valid, of course, and 1368 * points to the same data as hidden_beacon_bss->beacon_ies in that case. 1369 * @signal: signal strength value (type depends on the wiphy's signal_type) 1370 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 1371 */ 1372 struct cfg80211_bss { 1373 struct ieee80211_channel *channel; 1374 1375 const struct cfg80211_bss_ies __rcu *ies; 1376 const struct cfg80211_bss_ies __rcu *beacon_ies; 1377 const struct cfg80211_bss_ies __rcu *proberesp_ies; 1378 1379 struct cfg80211_bss *hidden_beacon_bss; 1380 1381 s32 signal; 1382 1383 u16 beacon_interval; 1384 u16 capability; 1385 1386 u8 bssid[ETH_ALEN]; 1387 1388 u8 priv[0] __aligned(sizeof(void *)); 1389 }; 1390 1391 /** 1392 * ieee80211_bss_get_ie - find IE with given ID 1393 * @bss: the bss to search 1394 * @ie: the IE ID 1395 * 1396 * Note that the return value is an RCU-protected pointer, so 1397 * rcu_read_lock() must be held when calling this function. 1398 * Return: %NULL if not found. 1399 */ 1400 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 1401 1402 1403 /** 1404 * struct cfg80211_auth_request - Authentication request data 1405 * 1406 * This structure provides information needed to complete IEEE 802.11 1407 * authentication. 1408 * 1409 * @bss: The BSS to authenticate with. 1410 * @auth_type: Authentication type (algorithm) 1411 * @ie: Extra IEs to add to Authentication frame or %NULL 1412 * @ie_len: Length of ie buffer in octets 1413 * @key_len: length of WEP key for shared key authentication 1414 * @key_idx: index of WEP key for shared key authentication 1415 * @key: WEP key for shared key authentication 1416 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with 1417 * Authentication transaction sequence number field. 1418 * @sae_data_len: Length of sae_data buffer in octets 1419 */ 1420 struct cfg80211_auth_request { 1421 struct cfg80211_bss *bss; 1422 const u8 *ie; 1423 size_t ie_len; 1424 enum nl80211_auth_type auth_type; 1425 const u8 *key; 1426 u8 key_len, key_idx; 1427 const u8 *sae_data; 1428 size_t sae_data_len; 1429 }; 1430 1431 /** 1432 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. 1433 * 1434 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) 1435 * @ASSOC_REQ_DISABLE_VHT: Disable VHT 1436 */ 1437 enum cfg80211_assoc_req_flags { 1438 ASSOC_REQ_DISABLE_HT = BIT(0), 1439 ASSOC_REQ_DISABLE_VHT = BIT(1), 1440 }; 1441 1442 /** 1443 * struct cfg80211_assoc_request - (Re)Association request data 1444 * 1445 * This structure provides information needed to complete IEEE 802.11 1446 * (re)association. 1447 * @bss: The BSS to associate with. If the call is successful the driver 1448 * is given a reference that it must release, normally via a call to 1449 * cfg80211_send_rx_assoc(), or, if association timed out, with a 1450 * call to cfg80211_put_bss() (in addition to calling 1451 * cfg80211_send_assoc_timeout()) 1452 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 1453 * @ie_len: Length of ie buffer in octets 1454 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 1455 * @crypto: crypto settings 1456 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 1457 * @flags: See &enum cfg80211_assoc_req_flags 1458 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1459 * will be used in ht_capa. Un-supported values will be ignored. 1460 * @ht_capa_mask: The bits of ht_capa which are to be used. 1461 * @vht_capa: VHT capability override 1462 * @vht_capa_mask: VHT capability mask indicating which fields to use 1463 */ 1464 struct cfg80211_assoc_request { 1465 struct cfg80211_bss *bss; 1466 const u8 *ie, *prev_bssid; 1467 size_t ie_len; 1468 struct cfg80211_crypto_settings crypto; 1469 bool use_mfp; 1470 u32 flags; 1471 struct ieee80211_ht_cap ht_capa; 1472 struct ieee80211_ht_cap ht_capa_mask; 1473 struct ieee80211_vht_cap vht_capa, vht_capa_mask; 1474 }; 1475 1476 /** 1477 * struct cfg80211_deauth_request - Deauthentication request data 1478 * 1479 * This structure provides information needed to complete IEEE 802.11 1480 * deauthentication. 1481 * 1482 * @bssid: the BSSID of the BSS to deauthenticate from 1483 * @ie: Extra IEs to add to Deauthentication frame or %NULL 1484 * @ie_len: Length of ie buffer in octets 1485 * @reason_code: The reason code for the deauthentication 1486 * @local_state_change: if set, change local state only and 1487 * do not set a deauth frame 1488 */ 1489 struct cfg80211_deauth_request { 1490 const u8 *bssid; 1491 const u8 *ie; 1492 size_t ie_len; 1493 u16 reason_code; 1494 bool local_state_change; 1495 }; 1496 1497 /** 1498 * struct cfg80211_disassoc_request - Disassociation request data 1499 * 1500 * This structure provides information needed to complete IEEE 802.11 1501 * disassocation. 1502 * 1503 * @bss: the BSS to disassociate from 1504 * @ie: Extra IEs to add to Disassociation frame or %NULL 1505 * @ie_len: Length of ie buffer in octets 1506 * @reason_code: The reason code for the disassociation 1507 * @local_state_change: This is a request for a local state only, i.e., no 1508 * Disassociation frame is to be transmitted. 1509 */ 1510 struct cfg80211_disassoc_request { 1511 struct cfg80211_bss *bss; 1512 const u8 *ie; 1513 size_t ie_len; 1514 u16 reason_code; 1515 bool local_state_change; 1516 }; 1517 1518 /** 1519 * struct cfg80211_ibss_params - IBSS parameters 1520 * 1521 * This structure defines the IBSS parameters for the join_ibss() 1522 * method. 1523 * 1524 * @ssid: The SSID, will always be non-null. 1525 * @ssid_len: The length of the SSID, will always be non-zero. 1526 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1527 * search for IBSSs with a different BSSID. 1528 * @chandef: defines the channel to use if no other IBSS to join can be found 1529 * @channel_fixed: The channel should be fixed -- do not search for 1530 * IBSSs to join on other channels. 1531 * @ie: information element(s) to include in the beacon 1532 * @ie_len: length of that 1533 * @beacon_interval: beacon interval to use 1534 * @privacy: this is a protected network, keys will be configured 1535 * after joining 1536 * @control_port: whether user space controls IEEE 802.1X port, i.e., 1537 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 1538 * required to assume that the port is unauthorized until authorized by 1539 * user space. Otherwise, port is marked authorized by default. 1540 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1541 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1542 */ 1543 struct cfg80211_ibss_params { 1544 u8 *ssid; 1545 u8 *bssid; 1546 struct cfg80211_chan_def chandef; 1547 u8 *ie; 1548 u8 ssid_len, ie_len; 1549 u16 beacon_interval; 1550 u32 basic_rates; 1551 bool channel_fixed; 1552 bool privacy; 1553 bool control_port; 1554 int mcast_rate[IEEE80211_NUM_BANDS]; 1555 }; 1556 1557 /** 1558 * struct cfg80211_connect_params - Connection parameters 1559 * 1560 * This structure provides information needed to complete IEEE 802.11 1561 * authentication and association. 1562 * 1563 * @channel: The channel to use or %NULL if not specified (auto-select based 1564 * on scan results) 1565 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1566 * results) 1567 * @ssid: SSID 1568 * @ssid_len: Length of ssid in octets 1569 * @auth_type: Authentication type (algorithm) 1570 * @ie: IEs for association request 1571 * @ie_len: Length of assoc_ie in octets 1572 * @privacy: indicates whether privacy-enabled APs should be used 1573 * @mfp: indicate whether management frame protection is used 1574 * @crypto: crypto settings 1575 * @key_len: length of WEP key for shared key authentication 1576 * @key_idx: index of WEP key for shared key authentication 1577 * @key: WEP key for shared key authentication 1578 * @flags: See &enum cfg80211_assoc_req_flags 1579 * @bg_scan_period: Background scan period in seconds 1580 * or -1 to indicate that default value is to be used. 1581 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1582 * will be used in ht_capa. Un-supported values will be ignored. 1583 * @ht_capa_mask: The bits of ht_capa which are to be used. 1584 * @vht_capa: VHT Capability overrides 1585 * @vht_capa_mask: The bits of vht_capa which are to be used. 1586 */ 1587 struct cfg80211_connect_params { 1588 struct ieee80211_channel *channel; 1589 u8 *bssid; 1590 u8 *ssid; 1591 size_t ssid_len; 1592 enum nl80211_auth_type auth_type; 1593 u8 *ie; 1594 size_t ie_len; 1595 bool privacy; 1596 enum nl80211_mfp mfp; 1597 struct cfg80211_crypto_settings crypto; 1598 const u8 *key; 1599 u8 key_len, key_idx; 1600 u32 flags; 1601 int bg_scan_period; 1602 struct ieee80211_ht_cap ht_capa; 1603 struct ieee80211_ht_cap ht_capa_mask; 1604 struct ieee80211_vht_cap vht_capa; 1605 struct ieee80211_vht_cap vht_capa_mask; 1606 }; 1607 1608 /** 1609 * enum wiphy_params_flags - set_wiphy_params bitfield values 1610 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1611 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1612 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1613 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1614 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1615 */ 1616 enum wiphy_params_flags { 1617 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1618 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1619 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1620 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1621 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1622 }; 1623 1624 /* 1625 * cfg80211_bitrate_mask - masks for bitrate control 1626 */ 1627 struct cfg80211_bitrate_mask { 1628 struct { 1629 u32 legacy; 1630 u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; 1631 } control[IEEE80211_NUM_BANDS]; 1632 }; 1633 /** 1634 * struct cfg80211_pmksa - PMK Security Association 1635 * 1636 * This structure is passed to the set/del_pmksa() method for PMKSA 1637 * caching. 1638 * 1639 * @bssid: The AP's BSSID. 1640 * @pmkid: The PMK material itself. 1641 */ 1642 struct cfg80211_pmksa { 1643 u8 *bssid; 1644 u8 *pmkid; 1645 }; 1646 1647 /** 1648 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern 1649 * @mask: bitmask where to match pattern and where to ignore bytes, 1650 * one bit per byte, in same format as nl80211 1651 * @pattern: bytes to match where bitmask is 1 1652 * @pattern_len: length of pattern (in bytes) 1653 * @pkt_offset: packet offset (in bytes) 1654 * 1655 * Internal note: @mask and @pattern are allocated in one chunk of 1656 * memory, free @mask only! 1657 */ 1658 struct cfg80211_wowlan_trig_pkt_pattern { 1659 u8 *mask, *pattern; 1660 int pattern_len; 1661 int pkt_offset; 1662 }; 1663 1664 /** 1665 * struct cfg80211_wowlan_tcp - TCP connection parameters 1666 * 1667 * @sock: (internal) socket for source port allocation 1668 * @src: source IP address 1669 * @dst: destination IP address 1670 * @dst_mac: destination MAC address 1671 * @src_port: source port 1672 * @dst_port: destination port 1673 * @payload_len: data payload length 1674 * @payload: data payload buffer 1675 * @payload_seq: payload sequence stamping configuration 1676 * @data_interval: interval at which to send data packets 1677 * @wake_len: wakeup payload match length 1678 * @wake_data: wakeup payload match data 1679 * @wake_mask: wakeup payload match mask 1680 * @tokens_size: length of the tokens buffer 1681 * @payload_tok: payload token usage configuration 1682 */ 1683 struct cfg80211_wowlan_tcp { 1684 struct socket *sock; 1685 __be32 src, dst; 1686 u16 src_port, dst_port; 1687 u8 dst_mac[ETH_ALEN]; 1688 int payload_len; 1689 const u8 *payload; 1690 struct nl80211_wowlan_tcp_data_seq payload_seq; 1691 u32 data_interval; 1692 u32 wake_len; 1693 const u8 *wake_data, *wake_mask; 1694 u32 tokens_size; 1695 /* must be last, variable member */ 1696 struct nl80211_wowlan_tcp_data_token payload_tok; 1697 }; 1698 1699 /** 1700 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1701 * 1702 * This structure defines the enabled WoWLAN triggers for the device. 1703 * @any: wake up on any activity -- special trigger if device continues 1704 * operating as normal during suspend 1705 * @disconnect: wake up if getting disconnected 1706 * @magic_pkt: wake up on receiving magic packet 1707 * @patterns: wake up on receiving packet matching a pattern 1708 * @n_patterns: number of patterns 1709 * @gtk_rekey_failure: wake up on GTK rekey failure 1710 * @eap_identity_req: wake up on EAP identity request packet 1711 * @four_way_handshake: wake up on 4-way handshake 1712 * @rfkill_release: wake up when rfkill is released 1713 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h. 1714 * NULL if not configured. 1715 */ 1716 struct cfg80211_wowlan { 1717 bool any, disconnect, magic_pkt, gtk_rekey_failure, 1718 eap_identity_req, four_way_handshake, 1719 rfkill_release; 1720 struct cfg80211_wowlan_trig_pkt_pattern *patterns; 1721 struct cfg80211_wowlan_tcp *tcp; 1722 int n_patterns; 1723 }; 1724 1725 /** 1726 * struct cfg80211_wowlan_wakeup - wakeup report 1727 * @disconnect: woke up by getting disconnected 1728 * @magic_pkt: woke up by receiving magic packet 1729 * @gtk_rekey_failure: woke up by GTK rekey failure 1730 * @eap_identity_req: woke up by EAP identity request packet 1731 * @four_way_handshake: woke up by 4-way handshake 1732 * @rfkill_release: woke up by rfkill being released 1733 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern 1734 * @packet_present_len: copied wakeup packet data 1735 * @packet_len: original wakeup packet length 1736 * @packet: The packet causing the wakeup, if any. 1737 * @packet_80211: For pattern match, magic packet and other data 1738 * frame triggers an 802.3 frame should be reported, for 1739 * disconnect due to deauth 802.11 frame. This indicates which 1740 * it is. 1741 * @tcp_match: TCP wakeup packet received 1742 * @tcp_connlost: TCP connection lost or failed to establish 1743 * @tcp_nomoretokens: TCP data ran out of tokens 1744 */ 1745 struct cfg80211_wowlan_wakeup { 1746 bool disconnect, magic_pkt, gtk_rekey_failure, 1747 eap_identity_req, four_way_handshake, 1748 rfkill_release, packet_80211, 1749 tcp_match, tcp_connlost, tcp_nomoretokens; 1750 s32 pattern_idx; 1751 u32 packet_present_len, packet_len; 1752 const void *packet; 1753 }; 1754 1755 /** 1756 * struct cfg80211_gtk_rekey_data - rekey data 1757 * @kek: key encryption key 1758 * @kck: key confirmation key 1759 * @replay_ctr: replay counter 1760 */ 1761 struct cfg80211_gtk_rekey_data { 1762 u8 kek[NL80211_KEK_LEN]; 1763 u8 kck[NL80211_KCK_LEN]; 1764 u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; 1765 }; 1766 1767 /** 1768 * struct cfg80211_update_ft_ies_params - FT IE Information 1769 * 1770 * This structure provides information needed to update the fast transition IE 1771 * 1772 * @md: The Mobility Domain ID, 2 Octet value 1773 * @ie: Fast Transition IEs 1774 * @ie_len: Length of ft_ie in octets 1775 */ 1776 struct cfg80211_update_ft_ies_params { 1777 u16 md; 1778 const u8 *ie; 1779 size_t ie_len; 1780 }; 1781 1782 /** 1783 * struct cfg80211_ops - backend description for wireless configuration 1784 * 1785 * This struct is registered by fullmac card drivers and/or wireless stacks 1786 * in order to handle configuration requests on their interfaces. 1787 * 1788 * All callbacks except where otherwise noted should return 0 1789 * on success or a negative error code. 1790 * 1791 * All operations are currently invoked under rtnl for consistency with the 1792 * wireless extensions but this is subject to reevaluation as soon as this 1793 * code is used more widely and we have a first user without wext. 1794 * 1795 * @suspend: wiphy device needs to be suspended. The variable @wow will 1796 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 1797 * configured for the device. 1798 * @resume: wiphy device needs to be resumed 1799 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback 1800 * to call device_set_wakeup_enable() to enable/disable wakeup from 1801 * the device. 1802 * 1803 * @add_virtual_intf: create a new virtual interface with the given name, 1804 * must set the struct wireless_dev's iftype. Beware: You must create 1805 * the new netdev in the wiphy's network namespace! Returns the struct 1806 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must 1807 * also set the address member in the wdev. 1808 * 1809 * @del_virtual_intf: remove the virtual interface 1810 * 1811 * @change_virtual_intf: change type/configuration of virtual interface, 1812 * keep the struct wireless_dev's iftype updated. 1813 * 1814 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 1815 * when adding a group key. 1816 * 1817 * @get_key: get information about the key with the given parameters. 1818 * @mac_addr will be %NULL when requesting information for a group 1819 * key. All pointers given to the @callback function need not be valid 1820 * after it returns. This function should return an error if it is 1821 * not possible to retrieve the key, -ENOENT if it doesn't exist. 1822 * 1823 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 1824 * and @key_index, return -ENOENT if the key doesn't exist. 1825 * 1826 * @set_default_key: set the default key on an interface 1827 * 1828 * @set_default_mgmt_key: set the default management frame key on an interface 1829 * 1830 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 1831 * 1832 * @start_ap: Start acting in AP mode defined by the parameters. 1833 * @change_beacon: Change the beacon parameters for an access point mode 1834 * interface. This should reject the call when AP mode wasn't started. 1835 * @stop_ap: Stop being an AP, including stopping beaconing. 1836 * 1837 * @add_station: Add a new station. 1838 * @del_station: Remove a station; @mac may be NULL to remove all stations. 1839 * @change_station: Modify a given station. Note that flags changes are not much 1840 * validated in cfg80211, in particular the auth/assoc/authorized flags 1841 * might come to the driver in invalid combinations -- make sure to check 1842 * them, also against the existing state! Drivers must call 1843 * cfg80211_check_station_change() to validate the information. 1844 * @get_station: get station information for the station identified by @mac 1845 * @dump_station: dump station callback -- resume dump at index @idx 1846 * 1847 * @add_mpath: add a fixed mesh path 1848 * @del_mpath: delete a given mesh path 1849 * @change_mpath: change a given mesh path 1850 * @get_mpath: get a mesh path for the given parameters 1851 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 1852 * @join_mesh: join the mesh network with the specified parameters 1853 * @leave_mesh: leave the current mesh network 1854 * 1855 * @get_mesh_config: Get the current mesh configuration 1856 * 1857 * @update_mesh_config: Update mesh parameters on a running mesh. 1858 * The mask is a bitfield which tells us which parameters to 1859 * set, and which to leave alone. 1860 * 1861 * @change_bss: Modify parameters for a given BSS. 1862 * 1863 * @set_txq_params: Set TX queue parameters 1864 * 1865 * @libertas_set_mesh_channel: Only for backward compatibility for libertas, 1866 * as it doesn't implement join_mesh and needs to set the channel to 1867 * join the mesh instead. 1868 * 1869 * @set_monitor_channel: Set the monitor mode channel for the device. If other 1870 * interfaces are active this callback should reject the configuration. 1871 * If no interfaces are active or the device is down, the channel should 1872 * be stored for when a monitor interface becomes active. 1873 * 1874 * @scan: Request to do a scan. If returning zero, the scan request is given 1875 * the driver, and will be valid until passed to cfg80211_scan_done(). 1876 * For scan results, call cfg80211_inform_bss(); you can call this outside 1877 * the scan/scan_done bracket too. 1878 * 1879 * @auth: Request to authenticate with the specified peer 1880 * @assoc: Request to (re)associate with the specified peer 1881 * @deauth: Request to deauthenticate from the specified peer 1882 * @disassoc: Request to disassociate from the specified peer 1883 * 1884 * @connect: Connect to the ESS with the specified parameters. When connected, 1885 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 1886 * If the connection fails for some reason, call cfg80211_connect_result() 1887 * with the status from the AP. 1888 * @disconnect: Disconnect from the BSS/ESS. 1889 * 1890 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 1891 * cfg80211_ibss_joined(), also call that function when changing BSSID due 1892 * to a merge. 1893 * @leave_ibss: Leave the IBSS. 1894 * 1895 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or 1896 * MESH mode) 1897 * 1898 * @set_wiphy_params: Notify that wiphy parameters have changed; 1899 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1900 * have changed. The actual parameter values are available in 1901 * struct wiphy. If returning an error, no value should be changed. 1902 * 1903 * @set_tx_power: set the transmit power according to the parameters, 1904 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The 1905 * wdev may be %NULL if power was set for the wiphy, and will 1906 * always be %NULL unless the driver supports per-vif TX power 1907 * (as advertised by the nl80211 feature flag.) 1908 * @get_tx_power: store the current TX power into the dbm variable; 1909 * return 0 if successful 1910 * 1911 * @set_wds_peer: set the WDS peer for a WDS interface 1912 * 1913 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1914 * functions to adjust rfkill hw state 1915 * 1916 * @dump_survey: get site survey information. 1917 * 1918 * @remain_on_channel: Request the driver to remain awake on the specified 1919 * channel for the specified duration to complete an off-channel 1920 * operation (e.g., public action frame exchange). When the driver is 1921 * ready on the requested channel, it must indicate this with an event 1922 * notification by calling cfg80211_ready_on_channel(). 1923 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1924 * This allows the operation to be terminated prior to timeout based on 1925 * the duration value. 1926 * @mgmt_tx: Transmit a management frame. 1927 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 1928 * frame on another channel 1929 * 1930 * @testmode_cmd: run a test mode command 1931 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 1932 * used by the function, but 0 and 1 must not be touched. Additionally, 1933 * return error codes other than -ENOBUFS and -ENOENT will terminate the 1934 * dump and return to userspace with an error, so be careful. If any data 1935 * was passed in from userspace then the data/len arguments will be present 1936 * and point to the data contained in %NL80211_ATTR_TESTDATA. 1937 * 1938 * @set_bitrate_mask: set the bitrate mask configuration 1939 * 1940 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 1941 * devices running firmwares capable of generating the (re) association 1942 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 1943 * @del_pmksa: Delete a cached PMKID. 1944 * @flush_pmksa: Flush all cached PMKIDs. 1945 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 1946 * allows the driver to adjust the dynamic ps timeout value. 1947 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 1948 * @set_cqm_txe_config: Configure connection quality monitor TX error 1949 * thresholds. 1950 * @sched_scan_start: Tell the driver to start a scheduled scan. 1951 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. 1952 * 1953 * @mgmt_frame_register: Notify driver that a management frame type was 1954 * registered. Note that this callback may not sleep, and cannot run 1955 * concurrently with itself. 1956 * 1957 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 1958 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 1959 * reject TX/RX mask combinations they cannot support by returning -EINVAL 1960 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 1961 * 1962 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 1963 * 1964 * @set_ringparam: Set tx and rx ring sizes. 1965 * 1966 * @get_ringparam: Get tx and rx ring current and maximum sizes. 1967 * 1968 * @tdls_mgmt: Transmit a TDLS management frame. 1969 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). 1970 * 1971 * @probe_client: probe an associated client, must return a cookie that it 1972 * later passes to cfg80211_probe_status(). 1973 * 1974 * @set_noack_map: Set the NoAck Map for the TIDs. 1975 * 1976 * @get_et_sset_count: Ethtool API to get string-set count. 1977 * See @ethtool_ops.get_sset_count 1978 * 1979 * @get_et_stats: Ethtool API to get a set of u64 stats. 1980 * See @ethtool_ops.get_ethtool_stats 1981 * 1982 * @get_et_strings: Ethtool API to get a set of strings to describe stats 1983 * and perhaps other supported types of ethtool data-sets. 1984 * See @ethtool_ops.get_strings 1985 * 1986 * @get_channel: Get the current operating channel for the virtual interface. 1987 * For monitor interfaces, it should return %NULL unless there's a single 1988 * current monitoring channel. 1989 * 1990 * @start_p2p_device: Start the given P2P device. 1991 * @stop_p2p_device: Stop the given P2P device. 1992 * 1993 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode. 1994 * Parameters include ACL policy, an array of MAC address of stations 1995 * and the number of MAC addresses. If there is already a list in driver 1996 * this new list replaces the existing one. Driver has to clear its ACL 1997 * when number of MAC addresses entries is passed as 0. Drivers which 1998 * advertise the support for MAC based ACL have to implement this callback. 1999 * 2000 * @start_radar_detection: Start radar detection in the driver. 2001 * 2002 * @update_ft_ies: Provide updated Fast BSS Transition information to the 2003 * driver. If the SME is in the driver/firmware, this information can be 2004 * used in building Authentication and Reassociation Request frames. 2005 * 2006 * @crit_proto_start: Indicates a critical protocol needs more link reliability 2007 * for a given duration (milliseconds). The protocol is provided so the 2008 * driver can take the most appropriate actions. 2009 * @crit_proto_stop: Indicates critical protocol no longer needs increased link 2010 * reliability. This operation can not fail. 2011 */ 2012 struct cfg80211_ops { 2013 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 2014 int (*resume)(struct wiphy *wiphy); 2015 void (*set_wakeup)(struct wiphy *wiphy, bool enabled); 2016 2017 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, 2018 const char *name, 2019 enum nl80211_iftype type, 2020 u32 *flags, 2021 struct vif_params *params); 2022 int (*del_virtual_intf)(struct wiphy *wiphy, 2023 struct wireless_dev *wdev); 2024 int (*change_virtual_intf)(struct wiphy *wiphy, 2025 struct net_device *dev, 2026 enum nl80211_iftype type, u32 *flags, 2027 struct vif_params *params); 2028 2029 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 2030 u8 key_index, bool pairwise, const u8 *mac_addr, 2031 struct key_params *params); 2032 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 2033 u8 key_index, bool pairwise, const u8 *mac_addr, 2034 void *cookie, 2035 void (*callback)(void *cookie, struct key_params*)); 2036 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 2037 u8 key_index, bool pairwise, const u8 *mac_addr); 2038 int (*set_default_key)(struct wiphy *wiphy, 2039 struct net_device *netdev, 2040 u8 key_index, bool unicast, bool multicast); 2041 int (*set_default_mgmt_key)(struct wiphy *wiphy, 2042 struct net_device *netdev, 2043 u8 key_index); 2044 2045 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, 2046 struct cfg80211_ap_settings *settings); 2047 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, 2048 struct cfg80211_beacon_data *info); 2049 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev); 2050 2051 2052 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 2053 u8 *mac, struct station_parameters *params); 2054 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 2055 u8 *mac); 2056 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 2057 u8 *mac, struct station_parameters *params); 2058 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 2059 u8 *mac, struct station_info *sinfo); 2060 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 2061 int idx, u8 *mac, struct station_info *sinfo); 2062 2063 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 2064 u8 *dst, u8 *next_hop); 2065 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 2066 u8 *dst); 2067 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 2068 u8 *dst, u8 *next_hop); 2069 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 2070 u8 *dst, u8 *next_hop, 2071 struct mpath_info *pinfo); 2072 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 2073 int idx, u8 *dst, u8 *next_hop, 2074 struct mpath_info *pinfo); 2075 int (*get_mesh_config)(struct wiphy *wiphy, 2076 struct net_device *dev, 2077 struct mesh_config *conf); 2078 int (*update_mesh_config)(struct wiphy *wiphy, 2079 struct net_device *dev, u32 mask, 2080 const struct mesh_config *nconf); 2081 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 2082 const struct mesh_config *conf, 2083 const struct mesh_setup *setup); 2084 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 2085 2086 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 2087 struct bss_parameters *params); 2088 2089 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, 2090 struct ieee80211_txq_params *params); 2091 2092 int (*libertas_set_mesh_channel)(struct wiphy *wiphy, 2093 struct net_device *dev, 2094 struct ieee80211_channel *chan); 2095 2096 int (*set_monitor_channel)(struct wiphy *wiphy, 2097 struct cfg80211_chan_def *chandef); 2098 2099 int (*scan)(struct wiphy *wiphy, 2100 struct cfg80211_scan_request *request); 2101 2102 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 2103 struct cfg80211_auth_request *req); 2104 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 2105 struct cfg80211_assoc_request *req); 2106 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 2107 struct cfg80211_deauth_request *req); 2108 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 2109 struct cfg80211_disassoc_request *req); 2110 2111 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 2112 struct cfg80211_connect_params *sme); 2113 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 2114 u16 reason_code); 2115 2116 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 2117 struct cfg80211_ibss_params *params); 2118 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 2119 2120 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev, 2121 int rate[IEEE80211_NUM_BANDS]); 2122 2123 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 2124 2125 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2126 enum nl80211_tx_power_setting type, int mbm); 2127 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2128 int *dbm); 2129 2130 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 2131 const u8 *addr); 2132 2133 void (*rfkill_poll)(struct wiphy *wiphy); 2134 2135 #ifdef CONFIG_NL80211_TESTMODE 2136 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 2137 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 2138 struct netlink_callback *cb, 2139 void *data, int len); 2140 #endif 2141 2142 int (*set_bitrate_mask)(struct wiphy *wiphy, 2143 struct net_device *dev, 2144 const u8 *peer, 2145 const struct cfg80211_bitrate_mask *mask); 2146 2147 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 2148 int idx, struct survey_info *info); 2149 2150 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2151 struct cfg80211_pmksa *pmksa); 2152 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2153 struct cfg80211_pmksa *pmksa); 2154 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 2155 2156 int (*remain_on_channel)(struct wiphy *wiphy, 2157 struct wireless_dev *wdev, 2158 struct ieee80211_channel *chan, 2159 unsigned int duration, 2160 u64 *cookie); 2161 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 2162 struct wireless_dev *wdev, 2163 u64 cookie); 2164 2165 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, 2166 struct ieee80211_channel *chan, bool offchan, 2167 unsigned int wait, const u8 *buf, size_t len, 2168 bool no_cck, bool dont_wait_for_ack, u64 *cookie); 2169 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 2170 struct wireless_dev *wdev, 2171 u64 cookie); 2172 2173 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2174 bool enabled, int timeout); 2175 2176 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 2177 struct net_device *dev, 2178 s32 rssi_thold, u32 rssi_hyst); 2179 2180 int (*set_cqm_txe_config)(struct wiphy *wiphy, 2181 struct net_device *dev, 2182 u32 rate, u32 pkts, u32 intvl); 2183 2184 void (*mgmt_frame_register)(struct wiphy *wiphy, 2185 struct wireless_dev *wdev, 2186 u16 frame_type, bool reg); 2187 2188 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 2189 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 2190 2191 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); 2192 void (*get_ringparam)(struct wiphy *wiphy, 2193 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); 2194 2195 int (*sched_scan_start)(struct wiphy *wiphy, 2196 struct net_device *dev, 2197 struct cfg80211_sched_scan_request *request); 2198 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 2199 2200 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 2201 struct cfg80211_gtk_rekey_data *data); 2202 2203 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2204 u8 *peer, u8 action_code, u8 dialog_token, 2205 u16 status_code, const u8 *buf, size_t len); 2206 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, 2207 u8 *peer, enum nl80211_tdls_operation oper); 2208 2209 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, 2210 const u8 *peer, u64 *cookie); 2211 2212 int (*set_noack_map)(struct wiphy *wiphy, 2213 struct net_device *dev, 2214 u16 noack_map); 2215 2216 int (*get_et_sset_count)(struct wiphy *wiphy, 2217 struct net_device *dev, int sset); 2218 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev, 2219 struct ethtool_stats *stats, u64 *data); 2220 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev, 2221 u32 sset, u8 *data); 2222 2223 int (*get_channel)(struct wiphy *wiphy, 2224 struct wireless_dev *wdev, 2225 struct cfg80211_chan_def *chandef); 2226 2227 int (*start_p2p_device)(struct wiphy *wiphy, 2228 struct wireless_dev *wdev); 2229 void (*stop_p2p_device)(struct wiphy *wiphy, 2230 struct wireless_dev *wdev); 2231 2232 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev, 2233 const struct cfg80211_acl_data *params); 2234 2235 int (*start_radar_detection)(struct wiphy *wiphy, 2236 struct net_device *dev, 2237 struct cfg80211_chan_def *chandef); 2238 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev, 2239 struct cfg80211_update_ft_ies_params *ftie); 2240 int (*crit_proto_start)(struct wiphy *wiphy, 2241 struct wireless_dev *wdev, 2242 enum nl80211_crit_proto_id protocol, 2243 u16 duration); 2244 void (*crit_proto_stop)(struct wiphy *wiphy, 2245 struct wireless_dev *wdev); 2246 }; 2247 2248 /* 2249 * wireless hardware and networking interfaces structures 2250 * and registration/helper functions 2251 */ 2252 2253 /** 2254 * enum wiphy_flags - wiphy capability flags 2255 * 2256 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 2257 * has its own custom regulatory domain and cannot identify the 2258 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 2259 * we will disregard the first regulatory hint (when the 2260 * initiator is %REGDOM_SET_BY_CORE). 2261 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 2262 * ignore regulatory domain settings until it gets its own regulatory 2263 * domain via its regulatory_hint() unless the regulatory hint is 2264 * from a country IE. After its gets its own regulatory domain it will 2265 * only allow further regulatory domain settings to further enhance 2266 * compliance. For example if channel 13 and 14 are disabled by this 2267 * regulatory domain no user regulatory domain can enable these channels 2268 * at a later time. This can be used for devices which do not have 2269 * calibration information guaranteed for frequencies or settings 2270 * outside of its regulatory domain. If used in combination with 2271 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings 2272 * will be followed. 2273 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 2274 * that passive scan flags and beaconing flags may not be lifted by 2275 * cfg80211 due to regulatory beacon hints. For more information on beacon 2276 * hints read the documenation for regulatory_hint_found_beacon() 2277 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 2278 * wiphy at all 2279 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 2280 * by default -- this flag will be set depending on the kernel's default 2281 * on wiphy_new(), but can be changed by the driver if it has a good 2282 * reason to override the default 2283 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 2284 * on a VLAN interface) 2285 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 2286 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 2287 * control port protocol ethertype. The device also honours the 2288 * control_port_no_encrypt flag. 2289 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 2290 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 2291 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 2292 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. 2293 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the 2294 * firmware. 2295 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. 2296 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. 2297 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) 2298 * link setup/discovery operations internally. Setup, discovery and 2299 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT 2300 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be 2301 * used for asking the driver/firmware to perform a TDLS operation. 2302 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME 2303 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes 2304 * when there are virtual interfaces in AP mode by calling 2305 * cfg80211_report_obss_beacon(). 2306 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device 2307 * responds to probe-requests in hardware. 2308 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. 2309 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. 2310 */ 2311 enum wiphy_flags { 2312 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 2313 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 2314 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 2315 WIPHY_FLAG_NETNS_OK = BIT(3), 2316 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 2317 WIPHY_FLAG_4ADDR_AP = BIT(5), 2318 WIPHY_FLAG_4ADDR_STATION = BIT(6), 2319 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 2320 WIPHY_FLAG_IBSS_RSN = BIT(8), 2321 WIPHY_FLAG_MESH_AUTH = BIT(10), 2322 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 2323 /* use hole at 12 */ 2324 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), 2325 WIPHY_FLAG_AP_UAPSD = BIT(14), 2326 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), 2327 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), 2328 WIPHY_FLAG_HAVE_AP_SME = BIT(17), 2329 WIPHY_FLAG_REPORTS_OBSS = BIT(18), 2330 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), 2331 WIPHY_FLAG_OFFCHAN_TX = BIT(20), 2332 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), 2333 }; 2334 2335 /** 2336 * struct ieee80211_iface_limit - limit on certain interface types 2337 * @max: maximum number of interfaces of these types 2338 * @types: interface types (bits) 2339 */ 2340 struct ieee80211_iface_limit { 2341 u16 max; 2342 u16 types; 2343 }; 2344 2345 /** 2346 * struct ieee80211_iface_combination - possible interface combination 2347 * @limits: limits for the given interface types 2348 * @n_limits: number of limitations 2349 * @num_different_channels: can use up to this many different channels 2350 * @max_interfaces: maximum number of interfaces in total allowed in this 2351 * group 2352 * @beacon_int_infra_match: In this combination, the beacon intervals 2353 * between infrastructure and AP types must match. This is required 2354 * only in special cases. 2355 * @radar_detect_widths: bitmap of channel widths supported for radar detection 2356 * 2357 * These examples can be expressed as follows: 2358 * 2359 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 2360 * 2361 * struct ieee80211_iface_limit limits1[] = { 2362 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2363 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 2364 * }; 2365 * struct ieee80211_iface_combination combination1 = { 2366 * .limits = limits1, 2367 * .n_limits = ARRAY_SIZE(limits1), 2368 * .max_interfaces = 2, 2369 * .beacon_int_infra_match = true, 2370 * }; 2371 * 2372 * 2373 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 2374 * 2375 * struct ieee80211_iface_limit limits2[] = { 2376 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 2377 * BIT(NL80211_IFTYPE_P2P_GO), }, 2378 * }; 2379 * struct ieee80211_iface_combination combination2 = { 2380 * .limits = limits2, 2381 * .n_limits = ARRAY_SIZE(limits2), 2382 * .max_interfaces = 8, 2383 * .num_different_channels = 1, 2384 * }; 2385 * 2386 * 2387 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 2388 * This allows for an infrastructure connection and three P2P connections. 2389 * 2390 * struct ieee80211_iface_limit limits3[] = { 2391 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2392 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 2393 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 2394 * }; 2395 * struct ieee80211_iface_combination combination3 = { 2396 * .limits = limits3, 2397 * .n_limits = ARRAY_SIZE(limits3), 2398 * .max_interfaces = 4, 2399 * .num_different_channels = 2, 2400 * }; 2401 */ 2402 struct ieee80211_iface_combination { 2403 const struct ieee80211_iface_limit *limits; 2404 u32 num_different_channels; 2405 u16 max_interfaces; 2406 u8 n_limits; 2407 bool beacon_int_infra_match; 2408 u8 radar_detect_widths; 2409 }; 2410 2411 struct ieee80211_txrx_stypes { 2412 u16 tx, rx; 2413 }; 2414 2415 /** 2416 * enum wiphy_wowlan_support_flags - WoWLAN support flags 2417 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 2418 * trigger that keeps the device operating as-is and 2419 * wakes up the host on any activity, for example a 2420 * received packet that passed filtering; note that the 2421 * packet should be preserved in that case 2422 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 2423 * (see nl80211.h) 2424 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 2425 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 2426 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 2427 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 2428 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 2429 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 2430 */ 2431 enum wiphy_wowlan_support_flags { 2432 WIPHY_WOWLAN_ANY = BIT(0), 2433 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 2434 WIPHY_WOWLAN_DISCONNECT = BIT(2), 2435 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 2436 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 2437 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 2438 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 2439 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 2440 }; 2441 2442 struct wiphy_wowlan_tcp_support { 2443 const struct nl80211_wowlan_tcp_data_token_feature *tok; 2444 u32 data_payload_max; 2445 u32 data_interval_max; 2446 u32 wake_payload_max; 2447 bool seq; 2448 }; 2449 2450 /** 2451 * struct wiphy_wowlan_support - WoWLAN support data 2452 * @flags: see &enum wiphy_wowlan_support_flags 2453 * @n_patterns: number of supported wakeup patterns 2454 * (see nl80211.h for the pattern definition) 2455 * @pattern_max_len: maximum length of each pattern 2456 * @pattern_min_len: minimum length of each pattern 2457 * @max_pkt_offset: maximum Rx packet offset 2458 * @tcp: TCP wakeup support information 2459 */ 2460 struct wiphy_wowlan_support { 2461 u32 flags; 2462 int n_patterns; 2463 int pattern_max_len; 2464 int pattern_min_len; 2465 int max_pkt_offset; 2466 const struct wiphy_wowlan_tcp_support *tcp; 2467 }; 2468 2469 /** 2470 * struct wiphy - wireless hardware description 2471 * @reg_notifier: the driver's regulatory notification callback, 2472 * note that if your driver uses wiphy_apply_custom_regulatory() 2473 * the reg_notifier's request can be passed as NULL 2474 * @regd: the driver's regulatory domain, if one was requested via 2475 * the regulatory_hint() API. This can be used by the driver 2476 * on the reg_notifier() if it chooses to ignore future 2477 * regulatory domain changes caused by other drivers. 2478 * @signal_type: signal type reported in &struct cfg80211_bss. 2479 * @cipher_suites: supported cipher suites 2480 * @n_cipher_suites: number of supported cipher suites 2481 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 2482 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 2483 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 2484 * -1 = fragmentation disabled, only odd values >= 256 used 2485 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 2486 * @_net: the network namespace this wiphy currently lives in 2487 * @perm_addr: permanent MAC address of this device 2488 * @addr_mask: If the device supports multiple MAC addresses by masking, 2489 * set this to a mask with variable bits set to 1, e.g. if the last 2490 * four bits are variable then set it to 00:...:00:0f. The actual 2491 * variable bits shall be determined by the interfaces added, with 2492 * interfaces not matching the mask being rejected to be brought up. 2493 * @n_addresses: number of addresses in @addresses. 2494 * @addresses: If the device has more than one address, set this pointer 2495 * to a list of addresses (6 bytes each). The first one will be used 2496 * by default for perm_addr. In this case, the mask should be set to 2497 * all-zeroes. In this case it is assumed that the device can handle 2498 * the same number of arbitrary MAC addresses. 2499 * @registered: protects ->resume and ->suspend sysfs callbacks against 2500 * unregister hardware 2501 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 2502 * automatically on wiphy renames 2503 * @dev: (virtual) struct device for this wiphy 2504 * @registered: helps synchronize suspend/resume with wiphy unregister 2505 * @wext: wireless extension handlers 2506 * @priv: driver private data (sized according to wiphy_new() parameter) 2507 * @interface_modes: bitmask of interfaces types valid for this wiphy, 2508 * must be set by driver 2509 * @iface_combinations: Valid interface combinations array, should not 2510 * list single interface types. 2511 * @n_iface_combinations: number of entries in @iface_combinations array. 2512 * @software_iftypes: bitmask of software interface types, these are not 2513 * subject to any restrictions since they are purely managed in SW. 2514 * @flags: wiphy flags, see &enum wiphy_flags 2515 * @features: features advertised to nl80211, see &enum nl80211_feature_flags. 2516 * @bss_priv_size: each BSS struct has private data allocated with it, 2517 * this variable determines its size 2518 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 2519 * any given scan 2520 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 2521 * for in any given scheduled scan 2522 * @max_match_sets: maximum number of match sets the device can handle 2523 * when performing a scheduled scan, 0 if filtering is not 2524 * supported. 2525 * @max_scan_ie_len: maximum length of user-controlled IEs device can 2526 * add to probe request frames transmitted during a scan, must not 2527 * include fixed IEs like supported rates 2528 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 2529 * scans 2530 * @coverage_class: current coverage class 2531 * @fw_version: firmware version for ethtool reporting 2532 * @hw_version: hardware version for ethtool reporting 2533 * @max_num_pmkids: maximum number of PMKIDs supported by device 2534 * @privid: a pointer that drivers can use to identify if an arbitrary 2535 * wiphy is theirs, e.g. in global notifiers 2536 * @bands: information about bands/channels supported by this device 2537 * 2538 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 2539 * transmitted through nl80211, points to an array indexed by interface 2540 * type 2541 * 2542 * @available_antennas_tx: bitmap of antennas which are available to be 2543 * configured as TX antennas. Antenna configuration commands will be 2544 * rejected unless this or @available_antennas_rx is set. 2545 * 2546 * @available_antennas_rx: bitmap of antennas which are available to be 2547 * configured as RX antennas. Antenna configuration commands will be 2548 * rejected unless this or @available_antennas_tx is set. 2549 * 2550 * @probe_resp_offload: 2551 * Bitmap of supported protocols for probe response offloading. 2552 * See &enum nl80211_probe_resp_offload_support_attr. Only valid 2553 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2554 * 2555 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 2556 * may request, if implemented. 2557 * 2558 * @wowlan: WoWLAN support information 2559 * 2560 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. 2561 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. 2562 * If null, then none can be over-ridden. 2563 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden. 2564 * If null, then none can be over-ridden. 2565 * 2566 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device 2567 * supports for ACL. 2568 * 2569 * @extended_capabilities: extended capabilities supported by the driver, 2570 * additional capabilities might be supported by userspace; these are 2571 * the 802.11 extended capabilities ("Extended Capabilities element") 2572 * and are in the same format as in the information element. See 2573 * 802.11-2012 8.4.2.29 for the defined fields. 2574 * @extended_capabilities_mask: mask of the valid values 2575 * @extended_capabilities_len: length of the extended capabilities 2576 */ 2577 struct wiphy { 2578 /* assign these fields before you register the wiphy */ 2579 2580 /* permanent MAC address(es) */ 2581 u8 perm_addr[ETH_ALEN]; 2582 u8 addr_mask[ETH_ALEN]; 2583 2584 struct mac_address *addresses; 2585 2586 const struct ieee80211_txrx_stypes *mgmt_stypes; 2587 2588 const struct ieee80211_iface_combination *iface_combinations; 2589 int n_iface_combinations; 2590 u16 software_iftypes; 2591 2592 u16 n_addresses; 2593 2594 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 2595 u16 interface_modes; 2596 2597 u16 max_acl_mac_addrs; 2598 2599 u32 flags, features; 2600 2601 u32 ap_sme_capa; 2602 2603 enum cfg80211_signal_type signal_type; 2604 2605 int bss_priv_size; 2606 u8 max_scan_ssids; 2607 u8 max_sched_scan_ssids; 2608 u8 max_match_sets; 2609 u16 max_scan_ie_len; 2610 u16 max_sched_scan_ie_len; 2611 2612 int n_cipher_suites; 2613 const u32 *cipher_suites; 2614 2615 u8 retry_short; 2616 u8 retry_long; 2617 u32 frag_threshold; 2618 u32 rts_threshold; 2619 u8 coverage_class; 2620 2621 char fw_version[ETHTOOL_FWVERS_LEN]; 2622 u32 hw_version; 2623 2624 #ifdef CONFIG_PM 2625 struct wiphy_wowlan_support wowlan; 2626 #endif 2627 2628 u16 max_remain_on_channel_duration; 2629 2630 u8 max_num_pmkids; 2631 2632 u32 available_antennas_tx; 2633 u32 available_antennas_rx; 2634 2635 /* 2636 * Bitmap of supported protocols for probe response offloading 2637 * see &enum nl80211_probe_resp_offload_support_attr. Only valid 2638 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2639 */ 2640 u32 probe_resp_offload; 2641 2642 const u8 *extended_capabilities, *extended_capabilities_mask; 2643 u8 extended_capabilities_len; 2644 2645 /* If multiple wiphys are registered and you're handed e.g. 2646 * a regular netdev with assigned ieee80211_ptr, you won't 2647 * know whether it points to a wiphy your driver has registered 2648 * or not. Assign this to something global to your driver to 2649 * help determine whether you own this wiphy or not. */ 2650 const void *privid; 2651 2652 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 2653 2654 /* Lets us get back the wiphy on the callback */ 2655 void (*reg_notifier)(struct wiphy *wiphy, 2656 struct regulatory_request *request); 2657 2658 /* fields below are read-only, assigned by cfg80211 */ 2659 2660 const struct ieee80211_regdomain __rcu *regd; 2661 2662 /* the item in /sys/class/ieee80211/ points to this, 2663 * you need use set_wiphy_dev() (see below) */ 2664 struct device dev; 2665 2666 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ 2667 bool registered; 2668 2669 /* dir in debugfs: ieee80211/<wiphyname> */ 2670 struct dentry *debugfsdir; 2671 2672 const struct ieee80211_ht_cap *ht_capa_mod_mask; 2673 const struct ieee80211_vht_cap *vht_capa_mod_mask; 2674 2675 #ifdef CONFIG_NET_NS 2676 /* the network namespace this phy lives in currently */ 2677 struct net *_net; 2678 #endif 2679 2680 #ifdef CONFIG_CFG80211_WEXT 2681 const struct iw_handler_def *wext; 2682 #endif 2683 2684 char priv[0] __aligned(NETDEV_ALIGN); 2685 }; 2686 2687 static inline struct net *wiphy_net(struct wiphy *wiphy) 2688 { 2689 return read_pnet(&wiphy->_net); 2690 } 2691 2692 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 2693 { 2694 write_pnet(&wiphy->_net, net); 2695 } 2696 2697 /** 2698 * wiphy_priv - return priv from wiphy 2699 * 2700 * @wiphy: the wiphy whose priv pointer to return 2701 * Return: The priv of @wiphy. 2702 */ 2703 static inline void *wiphy_priv(struct wiphy *wiphy) 2704 { 2705 BUG_ON(!wiphy); 2706 return &wiphy->priv; 2707 } 2708 2709 /** 2710 * priv_to_wiphy - return the wiphy containing the priv 2711 * 2712 * @priv: a pointer previously returned by wiphy_priv 2713 * Return: The wiphy of @priv. 2714 */ 2715 static inline struct wiphy *priv_to_wiphy(void *priv) 2716 { 2717 BUG_ON(!priv); 2718 return container_of(priv, struct wiphy, priv); 2719 } 2720 2721 /** 2722 * set_wiphy_dev - set device pointer for wiphy 2723 * 2724 * @wiphy: The wiphy whose device to bind 2725 * @dev: The device to parent it to 2726 */ 2727 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 2728 { 2729 wiphy->dev.parent = dev; 2730 } 2731 2732 /** 2733 * wiphy_dev - get wiphy dev pointer 2734 * 2735 * @wiphy: The wiphy whose device struct to look up 2736 * Return: The dev of @wiphy. 2737 */ 2738 static inline struct device *wiphy_dev(struct wiphy *wiphy) 2739 { 2740 return wiphy->dev.parent; 2741 } 2742 2743 /** 2744 * wiphy_name - get wiphy name 2745 * 2746 * @wiphy: The wiphy whose name to return 2747 * Return: The name of @wiphy. 2748 */ 2749 static inline const char *wiphy_name(const struct wiphy *wiphy) 2750 { 2751 return dev_name(&wiphy->dev); 2752 } 2753 2754 /** 2755 * wiphy_new - create a new wiphy for use with cfg80211 2756 * 2757 * @ops: The configuration operations for this device 2758 * @sizeof_priv: The size of the private area to allocate 2759 * 2760 * Create a new wiphy and associate the given operations with it. 2761 * @sizeof_priv bytes are allocated for private use. 2762 * 2763 * Return: A pointer to the new wiphy. This pointer must be 2764 * assigned to each netdev's ieee80211_ptr for proper operation. 2765 */ 2766 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 2767 2768 /** 2769 * wiphy_register - register a wiphy with cfg80211 2770 * 2771 * @wiphy: The wiphy to register. 2772 * 2773 * Return: A non-negative wiphy index or a negative error code. 2774 */ 2775 extern int wiphy_register(struct wiphy *wiphy); 2776 2777 /** 2778 * wiphy_unregister - deregister a wiphy from cfg80211 2779 * 2780 * @wiphy: The wiphy to unregister. 2781 * 2782 * After this call, no more requests can be made with this priv 2783 * pointer, but the call may sleep to wait for an outstanding 2784 * request that is being handled. 2785 */ 2786 extern void wiphy_unregister(struct wiphy *wiphy); 2787 2788 /** 2789 * wiphy_free - free wiphy 2790 * 2791 * @wiphy: The wiphy to free 2792 */ 2793 extern void wiphy_free(struct wiphy *wiphy); 2794 2795 /* internal structs */ 2796 struct cfg80211_conn; 2797 struct cfg80211_internal_bss; 2798 struct cfg80211_cached_keys; 2799 2800 /** 2801 * struct wireless_dev - wireless device state 2802 * 2803 * For netdevs, this structure must be allocated by the driver 2804 * that uses the ieee80211_ptr field in struct net_device (this 2805 * is intentional so it can be allocated along with the netdev.) 2806 * It need not be registered then as netdev registration will 2807 * be intercepted by cfg80211 to see the new wireless device. 2808 * 2809 * For non-netdev uses, it must also be allocated by the driver 2810 * in response to the cfg80211 callbacks that require it, as 2811 * there's no netdev registration in that case it may not be 2812 * allocated outside of callback operations that return it. 2813 * 2814 * @wiphy: pointer to hardware description 2815 * @iftype: interface type 2816 * @list: (private) Used to collect the interfaces 2817 * @netdev: (private) Used to reference back to the netdev, may be %NULL 2818 * @identifier: (private) Identifier used in nl80211 to identify this 2819 * wireless device if it has no netdev 2820 * @current_bss: (private) Used by the internal configuration code 2821 * @channel: (private) Used by the internal configuration code to track 2822 * the user-set AP, monitor and WDS channel 2823 * @preset_chan: (private) Used by the internal configuration code to 2824 * track the channel to be used for AP later 2825 * @bssid: (private) Used by the internal configuration code 2826 * @ssid: (private) Used by the internal configuration code 2827 * @ssid_len: (private) Used by the internal configuration code 2828 * @mesh_id_len: (private) Used by the internal configuration code 2829 * @mesh_id_up_len: (private) Used by the internal configuration code 2830 * @wext: (private) Used by the internal wireless extensions compat code 2831 * @use_4addr: indicates 4addr mode is used on this interface, must be 2832 * set by driver (if supported) on add_interface BEFORE registering the 2833 * netdev and may otherwise be used by driver read-only, will be update 2834 * by cfg80211 on change_interface 2835 * @mgmt_registrations: list of registrations for management frames 2836 * @mgmt_registrations_lock: lock for the list 2837 * @mtx: mutex used to lock data in this struct 2838 * @cleanup_work: work struct used for cleanup that can't be done directly 2839 * @beacon_interval: beacon interval used on this device for transmitting 2840 * beacons, 0 when not valid 2841 * @address: The address for this device, valid only if @netdev is %NULL 2842 * @p2p_started: true if this is a P2P Device that has been started 2843 * @cac_started: true if DFS channel availability check has been started 2844 * @cac_start_time: timestamp (jiffies) when the dfs state was entered. 2845 */ 2846 struct wireless_dev { 2847 struct wiphy *wiphy; 2848 enum nl80211_iftype iftype; 2849 2850 /* the remainder of this struct should be private to cfg80211 */ 2851 struct list_head list; 2852 struct net_device *netdev; 2853 2854 u32 identifier; 2855 2856 struct list_head mgmt_registrations; 2857 spinlock_t mgmt_registrations_lock; 2858 2859 struct mutex mtx; 2860 2861 struct work_struct cleanup_work; 2862 2863 bool use_4addr, p2p_started; 2864 2865 u8 address[ETH_ALEN] __aligned(sizeof(u16)); 2866 2867 /* currently used for IBSS and SME - might be rearranged later */ 2868 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2869 u8 ssid_len, mesh_id_len, mesh_id_up_len; 2870 enum { 2871 CFG80211_SME_IDLE, 2872 CFG80211_SME_CONNECTING, 2873 CFG80211_SME_CONNECTED, 2874 } sme_state; 2875 struct cfg80211_conn *conn; 2876 struct cfg80211_cached_keys *connect_keys; 2877 2878 struct list_head event_list; 2879 spinlock_t event_lock; 2880 2881 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 2882 struct cfg80211_chan_def preset_chandef; 2883 2884 /* for AP and mesh channel tracking */ 2885 struct ieee80211_channel *channel; 2886 2887 bool ibss_fixed; 2888 2889 bool ps; 2890 int ps_timeout; 2891 2892 int beacon_interval; 2893 2894 u32 ap_unexpected_nlportid; 2895 2896 bool cac_started; 2897 unsigned long cac_start_time; 2898 2899 #ifdef CONFIG_CFG80211_WEXT 2900 /* wext data */ 2901 struct { 2902 struct cfg80211_ibss_params ibss; 2903 struct cfg80211_connect_params connect; 2904 struct cfg80211_cached_keys *keys; 2905 u8 *ie; 2906 size_t ie_len; 2907 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 2908 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2909 s8 default_key, default_mgmt_key; 2910 bool prev_bssid_valid; 2911 } wext; 2912 #endif 2913 }; 2914 2915 static inline u8 *wdev_address(struct wireless_dev *wdev) 2916 { 2917 if (wdev->netdev) 2918 return wdev->netdev->dev_addr; 2919 return wdev->address; 2920 } 2921 2922 /** 2923 * wdev_priv - return wiphy priv from wireless_dev 2924 * 2925 * @wdev: The wireless device whose wiphy's priv pointer to return 2926 * Return: The wiphy priv of @wdev. 2927 */ 2928 static inline void *wdev_priv(struct wireless_dev *wdev) 2929 { 2930 BUG_ON(!wdev); 2931 return wiphy_priv(wdev->wiphy); 2932 } 2933 2934 /** 2935 * DOC: Utility functions 2936 * 2937 * cfg80211 offers a number of utility functions that can be useful. 2938 */ 2939 2940 /** 2941 * ieee80211_channel_to_frequency - convert channel number to frequency 2942 * @chan: channel number 2943 * @band: band, necessary due to channel number overlap 2944 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed. 2945 */ 2946 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 2947 2948 /** 2949 * ieee80211_frequency_to_channel - convert frequency to channel number 2950 * @freq: center frequency 2951 * Return: The corresponding channel, or 0 if the conversion failed. 2952 */ 2953 extern int ieee80211_frequency_to_channel(int freq); 2954 2955 /* 2956 * Name indirection necessary because the ieee80211 code also has 2957 * a function named "ieee80211_get_channel", so if you include 2958 * cfg80211's header file you get cfg80211's version, if you try 2959 * to include both header files you'll (rightfully!) get a symbol 2960 * clash. 2961 */ 2962 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 2963 int freq); 2964 /** 2965 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 2966 * @wiphy: the struct wiphy to get the channel for 2967 * @freq: the center frequency of the channel 2968 * Return: The channel struct from @wiphy at @freq. 2969 */ 2970 static inline struct ieee80211_channel * 2971 ieee80211_get_channel(struct wiphy *wiphy, int freq) 2972 { 2973 return __ieee80211_get_channel(wiphy, freq); 2974 } 2975 2976 /** 2977 * ieee80211_get_response_rate - get basic rate for a given rate 2978 * 2979 * @sband: the band to look for rates in 2980 * @basic_rates: bitmap of basic rates 2981 * @bitrate: the bitrate for which to find the basic rate 2982 * 2983 * Return: The basic rate corresponding to a given bitrate, that 2984 * is the next lower bitrate contained in the basic rate map, 2985 * which is, for this function, given as a bitmap of indices of 2986 * rates in the band's bitrate table. 2987 */ 2988 struct ieee80211_rate * 2989 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 2990 u32 basic_rates, int bitrate); 2991 2992 /* 2993 * Radiotap parsing functions -- for controlled injection support 2994 * 2995 * Implemented in net/wireless/radiotap.c 2996 * Documentation in Documentation/networking/radiotap-headers.txt 2997 */ 2998 2999 struct radiotap_align_size { 3000 uint8_t align:4, size:4; 3001 }; 3002 3003 struct ieee80211_radiotap_namespace { 3004 const struct radiotap_align_size *align_size; 3005 int n_bits; 3006 uint32_t oui; 3007 uint8_t subns; 3008 }; 3009 3010 struct ieee80211_radiotap_vendor_namespaces { 3011 const struct ieee80211_radiotap_namespace *ns; 3012 int n_ns; 3013 }; 3014 3015 /** 3016 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 3017 * @this_arg_index: index of current arg, valid after each successful call 3018 * to ieee80211_radiotap_iterator_next() 3019 * @this_arg: pointer to current radiotap arg; it is valid after each 3020 * call to ieee80211_radiotap_iterator_next() but also after 3021 * ieee80211_radiotap_iterator_init() where it will point to 3022 * the beginning of the actual data portion 3023 * @this_arg_size: length of the current arg, for convenience 3024 * @current_namespace: pointer to the current namespace definition 3025 * (or internally %NULL if the current namespace is unknown) 3026 * @is_radiotap_ns: indicates whether the current namespace is the default 3027 * radiotap namespace or not 3028 * 3029 * @_rtheader: pointer to the radiotap header we are walking through 3030 * @_max_length: length of radiotap header in cpu byte ordering 3031 * @_arg_index: next argument index 3032 * @_arg: next argument pointer 3033 * @_next_bitmap: internal pointer to next present u32 3034 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 3035 * @_vns: vendor namespace definitions 3036 * @_next_ns_data: beginning of the next namespace's data 3037 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 3038 * next bitmap word 3039 * 3040 * Describes the radiotap parser state. Fields prefixed with an underscore 3041 * must not be used by users of the parser, only by the parser internally. 3042 */ 3043 3044 struct ieee80211_radiotap_iterator { 3045 struct ieee80211_radiotap_header *_rtheader; 3046 const struct ieee80211_radiotap_vendor_namespaces *_vns; 3047 const struct ieee80211_radiotap_namespace *current_namespace; 3048 3049 unsigned char *_arg, *_next_ns_data; 3050 __le32 *_next_bitmap; 3051 3052 unsigned char *this_arg; 3053 int this_arg_index; 3054 int this_arg_size; 3055 3056 int is_radiotap_ns; 3057 3058 int _max_length; 3059 int _arg_index; 3060 uint32_t _bitmap_shifter; 3061 int _reset_on_ext; 3062 }; 3063 3064 extern int ieee80211_radiotap_iterator_init( 3065 struct ieee80211_radiotap_iterator *iterator, 3066 struct ieee80211_radiotap_header *radiotap_header, 3067 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 3068 3069 extern int ieee80211_radiotap_iterator_next( 3070 struct ieee80211_radiotap_iterator *iterator); 3071 3072 3073 extern const unsigned char rfc1042_header[6]; 3074 extern const unsigned char bridge_tunnel_header[6]; 3075 3076 /** 3077 * ieee80211_get_hdrlen_from_skb - get header length from data 3078 * 3079 * @skb: the frame 3080 * 3081 * Given an skb with a raw 802.11 header at the data pointer this function 3082 * returns the 802.11 header length. 3083 * 3084 * Return: The 802.11 header length in bytes (not including encryption 3085 * headers). Or 0 if the data in the sk_buff is too short to contain a valid 3086 * 802.11 header. 3087 */ 3088 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 3089 3090 /** 3091 * ieee80211_hdrlen - get header length in bytes from frame control 3092 * @fc: frame control field in little-endian format 3093 * Return: The header length in bytes. 3094 */ 3095 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 3096 3097 /** 3098 * ieee80211_get_mesh_hdrlen - get mesh extension header length 3099 * @meshhdr: the mesh extension header, only the flags field 3100 * (first byte) will be accessed 3101 * Return: The length of the extension header, which is always at 3102 * least 6 bytes and at most 18 if address 5 and 6 are present. 3103 */ 3104 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); 3105 3106 /** 3107 * DOC: Data path helpers 3108 * 3109 * In addition to generic utilities, cfg80211 also offers 3110 * functions that help implement the data path for devices 3111 * that do not do the 802.11/802.3 conversion on the device. 3112 */ 3113 3114 /** 3115 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 3116 * @skb: the 802.11 data frame 3117 * @addr: the device MAC address 3118 * @iftype: the virtual interface type 3119 * Return: 0 on success. Non-zero on error. 3120 */ 3121 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 3122 enum nl80211_iftype iftype); 3123 3124 /** 3125 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 3126 * @skb: the 802.3 frame 3127 * @addr: the device MAC address 3128 * @iftype: the virtual interface type 3129 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 3130 * @qos: build 802.11 QoS data frame 3131 * Return: 0 on success, or a negative error code. 3132 */ 3133 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 3134 enum nl80211_iftype iftype, u8 *bssid, bool qos); 3135 3136 /** 3137 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 3138 * 3139 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 3140 * 802.3 frames. The @list will be empty if the decode fails. The 3141 * @skb is consumed after the function returns. 3142 * 3143 * @skb: The input IEEE 802.11n A-MSDU frame. 3144 * @list: The output list of 802.3 frames. It must be allocated and 3145 * initialized by by the caller. 3146 * @addr: The device MAC address. 3147 * @iftype: The device interface type. 3148 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 3149 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 3150 */ 3151 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 3152 const u8 *addr, enum nl80211_iftype iftype, 3153 const unsigned int extra_headroom, 3154 bool has_80211_header); 3155 3156 /** 3157 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 3158 * @skb: the data frame 3159 * Return: The 802.1p/1d tag. 3160 */ 3161 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 3162 3163 /** 3164 * cfg80211_find_ie - find information element in data 3165 * 3166 * @eid: element ID 3167 * @ies: data consisting of IEs 3168 * @len: length of data 3169 * 3170 * Return: %NULL if the element ID could not be found or if 3171 * the element is invalid (claims to be longer than the given 3172 * data), or a pointer to the first byte of the requested 3173 * element, that is the byte containing the element ID. 3174 * 3175 * Note: There are no checks on the element length other than 3176 * having to fit into the given data. 3177 */ 3178 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 3179 3180 /** 3181 * cfg80211_find_vendor_ie - find vendor specific information element in data 3182 * 3183 * @oui: vendor OUI 3184 * @oui_type: vendor-specific OUI type 3185 * @ies: data consisting of IEs 3186 * @len: length of data 3187 * 3188 * Return: %NULL if the vendor specific element ID could not be found or if the 3189 * element is invalid (claims to be longer than the given data), or a pointer to 3190 * the first byte of the requested element, that is the byte containing the 3191 * element ID. 3192 * 3193 * Note: There are no checks on the element length other than having to fit into 3194 * the given data. 3195 */ 3196 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, 3197 const u8 *ies, int len); 3198 3199 /** 3200 * DOC: Regulatory enforcement infrastructure 3201 * 3202 * TODO 3203 */ 3204 3205 /** 3206 * regulatory_hint - driver hint to the wireless core a regulatory domain 3207 * @wiphy: the wireless device giving the hint (used only for reporting 3208 * conflicts) 3209 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 3210 * should be in. If @rd is set this should be NULL. Note that if you 3211 * set this to NULL you should still set rd->alpha2 to some accepted 3212 * alpha2. 3213 * 3214 * Wireless drivers can use this function to hint to the wireless core 3215 * what it believes should be the current regulatory domain by 3216 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 3217 * domain should be in or by providing a completely build regulatory domain. 3218 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 3219 * for a regulatory domain structure for the respective country. 3220 * 3221 * The wiphy must have been registered to cfg80211 prior to this call. 3222 * For cfg80211 drivers this means you must first use wiphy_register(), 3223 * for mac80211 drivers you must first use ieee80211_register_hw(). 3224 * 3225 * Drivers should check the return value, its possible you can get 3226 * an -ENOMEM. 3227 * 3228 * Return: 0 on success. -ENOMEM. 3229 */ 3230 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 3231 3232 /** 3233 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 3234 * @wiphy: the wireless device we want to process the regulatory domain on 3235 * @regd: the custom regulatory domain to use for this wiphy 3236 * 3237 * Drivers can sometimes have custom regulatory domains which do not apply 3238 * to a specific country. Drivers can use this to apply such custom regulatory 3239 * domains. This routine must be called prior to wiphy registration. The 3240 * custom regulatory domain will be trusted completely and as such previous 3241 * default channel settings will be disregarded. If no rule is found for a 3242 * channel on the regulatory domain the channel will be disabled. 3243 */ 3244 extern void wiphy_apply_custom_regulatory( 3245 struct wiphy *wiphy, 3246 const struct ieee80211_regdomain *regd); 3247 3248 /** 3249 * freq_reg_info - get regulatory information for the given frequency 3250 * @wiphy: the wiphy for which we want to process this rule for 3251 * @center_freq: Frequency in KHz for which we want regulatory information for 3252 * 3253 * Use this function to get the regulatory rule for a specific frequency on 3254 * a given wireless device. If the device has a specific regulatory domain 3255 * it wants to follow we respect that unless a country IE has been received 3256 * and processed already. 3257 * 3258 * Return: A valid pointer, or, when an error occurs, for example if no rule 3259 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to 3260 * check and PTR_ERR() to obtain the numeric return value. The numeric return 3261 * value will be -ERANGE if we determine the given center_freq does not even 3262 * have a regulatory rule for a frequency range in the center_freq's band. 3263 * See freq_in_rule_band() for our current definition of a band -- this is 3264 * purely subjective and right now it's 802.11 specific. 3265 */ 3266 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, 3267 u32 center_freq); 3268 3269 /* 3270 * callbacks for asynchronous cfg80211 methods, notification 3271 * functions and BSS handling helpers 3272 */ 3273 3274 /** 3275 * cfg80211_scan_done - notify that scan finished 3276 * 3277 * @request: the corresponding scan request 3278 * @aborted: set to true if the scan was aborted for any reason, 3279 * userspace will be notified of that 3280 */ 3281 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 3282 3283 /** 3284 * cfg80211_sched_scan_results - notify that new scan results are available 3285 * 3286 * @wiphy: the wiphy which got scheduled scan results 3287 */ 3288 void cfg80211_sched_scan_results(struct wiphy *wiphy); 3289 3290 /** 3291 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 3292 * 3293 * @wiphy: the wiphy on which the scheduled scan stopped 3294 * 3295 * The driver can call this function to inform cfg80211 that the 3296 * scheduled scan had to be stopped, for whatever reason. The driver 3297 * is then called back via the sched_scan_stop operation when done. 3298 */ 3299 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 3300 3301 /** 3302 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 3303 * 3304 * @wiphy: the wiphy reporting the BSS 3305 * @channel: The channel the frame was received on 3306 * @mgmt: the management frame (probe response or beacon) 3307 * @len: length of the management frame 3308 * @signal: the signal strength, type depends on the wiphy's signal_type 3309 * @gfp: context flags 3310 * 3311 * This informs cfg80211 that BSS information was found and 3312 * the BSS should be updated/added. 3313 * 3314 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3315 * Or %NULL on error. 3316 */ 3317 struct cfg80211_bss * __must_check 3318 cfg80211_inform_bss_frame(struct wiphy *wiphy, 3319 struct ieee80211_channel *channel, 3320 struct ieee80211_mgmt *mgmt, size_t len, 3321 s32 signal, gfp_t gfp); 3322 3323 /** 3324 * cfg80211_inform_bss - inform cfg80211 of a new BSS 3325 * 3326 * @wiphy: the wiphy reporting the BSS 3327 * @channel: The channel the frame was received on 3328 * @bssid: the BSSID of the BSS 3329 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) 3330 * @capability: the capability field sent by the peer 3331 * @beacon_interval: the beacon interval announced by the peer 3332 * @ie: additional IEs sent by the peer 3333 * @ielen: length of the additional IEs 3334 * @signal: the signal strength, type depends on the wiphy's signal_type 3335 * @gfp: context flags 3336 * 3337 * This informs cfg80211 that BSS information was found and 3338 * the BSS should be updated/added. 3339 * 3340 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3341 * Or %NULL on error. 3342 */ 3343 struct cfg80211_bss * __must_check 3344 cfg80211_inform_bss(struct wiphy *wiphy, 3345 struct ieee80211_channel *channel, 3346 const u8 *bssid, u64 tsf, u16 capability, 3347 u16 beacon_interval, const u8 *ie, size_t ielen, 3348 s32 signal, gfp_t gfp); 3349 3350 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 3351 struct ieee80211_channel *channel, 3352 const u8 *bssid, 3353 const u8 *ssid, size_t ssid_len, 3354 u16 capa_mask, u16 capa_val); 3355 static inline struct cfg80211_bss * 3356 cfg80211_get_ibss(struct wiphy *wiphy, 3357 struct ieee80211_channel *channel, 3358 const u8 *ssid, size_t ssid_len) 3359 { 3360 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 3361 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 3362 } 3363 3364 /** 3365 * cfg80211_ref_bss - reference BSS struct 3366 * @wiphy: the wiphy this BSS struct belongs to 3367 * @bss: the BSS struct to reference 3368 * 3369 * Increments the refcount of the given BSS struct. 3370 */ 3371 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3372 3373 /** 3374 * cfg80211_put_bss - unref BSS struct 3375 * @wiphy: the wiphy this BSS struct belongs to 3376 * @bss: the BSS struct 3377 * 3378 * Decrements the refcount of the given BSS struct. 3379 */ 3380 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3381 3382 /** 3383 * cfg80211_unlink_bss - unlink BSS from internal data structures 3384 * @wiphy: the wiphy 3385 * @bss: the bss to remove 3386 * 3387 * This function removes the given BSS from the internal data structures 3388 * thereby making it no longer show up in scan results etc. Use this 3389 * function when you detect a BSS is gone. Normally BSSes will also time 3390 * out, so it is not necessary to use this function at all. 3391 */ 3392 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 3393 3394 /** 3395 * cfg80211_send_rx_auth - notification of processed authentication 3396 * @dev: network device 3397 * @buf: authentication frame (header + body) 3398 * @len: length of the frame data 3399 * 3400 * This function is called whenever an authentication has been processed in 3401 * station mode. The driver is required to call either this function or 3402 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 3403 * call. This function may sleep. 3404 */ 3405 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 3406 3407 /** 3408 * cfg80211_send_auth_timeout - notification of timed out authentication 3409 * @dev: network device 3410 * @addr: The MAC address of the device with which the authentication timed out 3411 * 3412 * This function may sleep. 3413 */ 3414 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 3415 3416 /** 3417 * cfg80211_send_rx_assoc - notification of processed association 3418 * @dev: network device 3419 * @bss: the BSS struct association was requested for, the struct reference 3420 * is owned by cfg80211 after this call 3421 * @buf: (re)association response frame (header + body) 3422 * @len: length of the frame data 3423 * 3424 * This function is called whenever a (re)association response has been 3425 * processed in station mode. The driver is required to call either this 3426 * function or cfg80211_send_assoc_timeout() to indicate the result of 3427 * cfg80211_ops::assoc() call. This function may sleep. 3428 */ 3429 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss, 3430 const u8 *buf, size_t len); 3431 3432 /** 3433 * cfg80211_send_assoc_timeout - notification of timed out association 3434 * @dev: network device 3435 * @addr: The MAC address of the device with which the association timed out 3436 * 3437 * This function may sleep. 3438 */ 3439 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 3440 3441 /** 3442 * cfg80211_send_deauth - notification of processed deauthentication 3443 * @dev: network device 3444 * @buf: deauthentication frame (header + body) 3445 * @len: length of the frame data 3446 * 3447 * This function is called whenever deauthentication has been processed in 3448 * station mode. This includes both received deauthentication frames and 3449 * locally generated ones. This function may sleep. 3450 */ 3451 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 3452 3453 /** 3454 * __cfg80211_send_deauth - notification of processed deauthentication 3455 * @dev: network device 3456 * @buf: deauthentication frame (header + body) 3457 * @len: length of the frame data 3458 * 3459 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 3460 */ 3461 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 3462 3463 /** 3464 * cfg80211_send_disassoc - notification of processed disassociation 3465 * @dev: network device 3466 * @buf: disassociation response frame (header + body) 3467 * @len: length of the frame data 3468 * 3469 * This function is called whenever disassociation has been processed in 3470 * station mode. This includes both received disassociation frames and locally 3471 * generated ones. This function may sleep. 3472 */ 3473 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 3474 3475 /** 3476 * __cfg80211_send_disassoc - notification of processed disassociation 3477 * @dev: network device 3478 * @buf: disassociation response frame (header + body) 3479 * @len: length of the frame data 3480 * 3481 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 3482 */ 3483 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 3484 size_t len); 3485 3486 /** 3487 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication 3488 * @dev: network device 3489 * @buf: deauthentication frame (header + body) 3490 * @len: length of the frame data 3491 * 3492 * This function is called whenever a received Deauthentication frame has been 3493 * dropped in station mode because of MFP being used but the Deauthentication 3494 * frame was not protected. This function may sleep. 3495 */ 3496 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, 3497 size_t len); 3498 3499 /** 3500 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation 3501 * @dev: network device 3502 * @buf: disassociation frame (header + body) 3503 * @len: length of the frame data 3504 * 3505 * This function is called whenever a received Disassociation frame has been 3506 * dropped in station mode because of MFP being used but the Disassociation 3507 * frame was not protected. This function may sleep. 3508 */ 3509 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, 3510 size_t len); 3511 3512 /** 3513 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 3514 * @dev: network device 3515 * @addr: The source MAC address of the frame 3516 * @key_type: The key type that the received frame used 3517 * @key_id: Key identifier (0..3). Can be -1 if missing. 3518 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 3519 * @gfp: allocation flags 3520 * 3521 * This function is called whenever the local MAC detects a MIC failure in a 3522 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 3523 * primitive. 3524 */ 3525 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 3526 enum nl80211_key_type key_type, int key_id, 3527 const u8 *tsc, gfp_t gfp); 3528 3529 /** 3530 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 3531 * 3532 * @dev: network device 3533 * @bssid: the BSSID of the IBSS joined 3534 * @gfp: allocation flags 3535 * 3536 * This function notifies cfg80211 that the device joined an IBSS or 3537 * switched to a different BSSID. Before this function can be called, 3538 * either a beacon has to have been received from the IBSS, or one of 3539 * the cfg80211_inform_bss{,_frame} functions must have been called 3540 * with the locally generated beacon -- this guarantees that there is 3541 * always a scan result for this IBSS. cfg80211 will handle the rest. 3542 */ 3543 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 3544 3545 /** 3546 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 3547 * 3548 * @dev: network device 3549 * @macaddr: the MAC address of the new candidate 3550 * @ie: information elements advertised by the peer candidate 3551 * @ie_len: lenght of the information elements buffer 3552 * @gfp: allocation flags 3553 * 3554 * This function notifies cfg80211 that the mesh peer candidate has been 3555 * detected, most likely via a beacon or, less likely, via a probe response. 3556 * cfg80211 then sends a notification to userspace. 3557 */ 3558 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 3559 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 3560 3561 /** 3562 * DOC: RFkill integration 3563 * 3564 * RFkill integration in cfg80211 is almost invisible to drivers, 3565 * as cfg80211 automatically registers an rfkill instance for each 3566 * wireless device it knows about. Soft kill is also translated 3567 * into disconnecting and turning all interfaces off, drivers are 3568 * expected to turn off the device when all interfaces are down. 3569 * 3570 * However, devices may have a hard RFkill line, in which case they 3571 * also need to interact with the rfkill subsystem, via cfg80211. 3572 * They can do this with a few helper functions documented here. 3573 */ 3574 3575 /** 3576 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 3577 * @wiphy: the wiphy 3578 * @blocked: block status 3579 */ 3580 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 3581 3582 /** 3583 * wiphy_rfkill_start_polling - start polling rfkill 3584 * @wiphy: the wiphy 3585 */ 3586 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 3587 3588 /** 3589 * wiphy_rfkill_stop_polling - stop polling rfkill 3590 * @wiphy: the wiphy 3591 */ 3592 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 3593 3594 #ifdef CONFIG_NL80211_TESTMODE 3595 /** 3596 * DOC: Test mode 3597 * 3598 * Test mode is a set of utility functions to allow drivers to 3599 * interact with driver-specific tools to aid, for instance, 3600 * factory programming. 3601 * 3602 * This chapter describes how drivers interact with it, for more 3603 * information see the nl80211 book's chapter on it. 3604 */ 3605 3606 /** 3607 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 3608 * @wiphy: the wiphy 3609 * @approxlen: an upper bound of the length of the data that will 3610 * be put into the skb 3611 * 3612 * This function allocates and pre-fills an skb for a reply to 3613 * the testmode command. Since it is intended for a reply, calling 3614 * it outside of the @testmode_cmd operation is invalid. 3615 * 3616 * The returned skb is pre-filled with the wiphy index and set up in 3617 * a way that any data that is put into the skb (with skb_put(), 3618 * nla_put() or similar) will end up being within the 3619 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done 3620 * with the skb is adding data for the corresponding userspace tool 3621 * which can then read that data out of the testdata attribute. You 3622 * must not modify the skb in any other way. 3623 * 3624 * When done, call cfg80211_testmode_reply() with the skb and return 3625 * its error code as the result of the @testmode_cmd operation. 3626 * 3627 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 3628 */ 3629 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 3630 int approxlen); 3631 3632 /** 3633 * cfg80211_testmode_reply - send the reply skb 3634 * @skb: The skb, must have been allocated with 3635 * cfg80211_testmode_alloc_reply_skb() 3636 * 3637 * Since calling this function will usually be the last thing 3638 * before returning from the @testmode_cmd you should return 3639 * the error code. Note that this function consumes the skb 3640 * regardless of the return value. 3641 * 3642 * Return: An error code or 0 on success. 3643 */ 3644 int cfg80211_testmode_reply(struct sk_buff *skb); 3645 3646 /** 3647 * cfg80211_testmode_alloc_event_skb - allocate testmode event 3648 * @wiphy: the wiphy 3649 * @approxlen: an upper bound of the length of the data that will 3650 * be put into the skb 3651 * @gfp: allocation flags 3652 * 3653 * This function allocates and pre-fills an skb for an event on the 3654 * testmode multicast group. 3655 * 3656 * The returned skb is set up in the same way as with 3657 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As 3658 * there, you should simply add data to it that will then end up in the 3659 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb 3660 * in any other way. 3661 * 3662 * When done filling the skb, call cfg80211_testmode_event() with the 3663 * skb to send the event. 3664 * 3665 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 3666 */ 3667 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 3668 int approxlen, gfp_t gfp); 3669 3670 /** 3671 * cfg80211_testmode_event - send the event 3672 * @skb: The skb, must have been allocated with 3673 * cfg80211_testmode_alloc_event_skb() 3674 * @gfp: allocation flags 3675 * 3676 * This function sends the given @skb, which must have been allocated 3677 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 3678 * consumes it. 3679 */ 3680 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 3681 3682 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 3683 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 3684 #else 3685 #define CFG80211_TESTMODE_CMD(cmd) 3686 #define CFG80211_TESTMODE_DUMP(cmd) 3687 #endif 3688 3689 /** 3690 * cfg80211_connect_result - notify cfg80211 of connection result 3691 * 3692 * @dev: network device 3693 * @bssid: the BSSID of the AP 3694 * @req_ie: association request IEs (maybe be %NULL) 3695 * @req_ie_len: association request IEs length 3696 * @resp_ie: association response IEs (may be %NULL) 3697 * @resp_ie_len: assoc response IEs length 3698 * @status: status code, 0 for successful connection, use 3699 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 3700 * the real status code for failures. 3701 * @gfp: allocation flags 3702 * 3703 * It should be called by the underlying driver whenever connect() has 3704 * succeeded. 3705 */ 3706 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 3707 const u8 *req_ie, size_t req_ie_len, 3708 const u8 *resp_ie, size_t resp_ie_len, 3709 u16 status, gfp_t gfp); 3710 3711 /** 3712 * cfg80211_roamed - notify cfg80211 of roaming 3713 * 3714 * @dev: network device 3715 * @channel: the channel of the new AP 3716 * @bssid: the BSSID of the new AP 3717 * @req_ie: association request IEs (maybe be %NULL) 3718 * @req_ie_len: association request IEs length 3719 * @resp_ie: association response IEs (may be %NULL) 3720 * @resp_ie_len: assoc response IEs length 3721 * @gfp: allocation flags 3722 * 3723 * It should be called by the underlying driver whenever it roamed 3724 * from one AP to another while connected. 3725 */ 3726 void cfg80211_roamed(struct net_device *dev, 3727 struct ieee80211_channel *channel, 3728 const u8 *bssid, 3729 const u8 *req_ie, size_t req_ie_len, 3730 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3731 3732 /** 3733 * cfg80211_roamed_bss - notify cfg80211 of roaming 3734 * 3735 * @dev: network device 3736 * @bss: entry of bss to which STA got roamed 3737 * @req_ie: association request IEs (maybe be %NULL) 3738 * @req_ie_len: association request IEs length 3739 * @resp_ie: association response IEs (may be %NULL) 3740 * @resp_ie_len: assoc response IEs length 3741 * @gfp: allocation flags 3742 * 3743 * This is just a wrapper to notify cfg80211 of roaming event with driver 3744 * passing bss to avoid a race in timeout of the bss entry. It should be 3745 * called by the underlying driver whenever it roamed from one AP to another 3746 * while connected. Drivers which have roaming implemented in firmware 3747 * may use this function to avoid a race in bss entry timeout where the bss 3748 * entry of the new AP is seen in the driver, but gets timed out by the time 3749 * it is accessed in __cfg80211_roamed() due to delay in scheduling 3750 * rdev->event_work. In case of any failures, the reference is released 3751 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise, 3752 * it will be released while diconneting from the current bss. 3753 */ 3754 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss, 3755 const u8 *req_ie, size_t req_ie_len, 3756 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3757 3758 /** 3759 * cfg80211_disconnected - notify cfg80211 that connection was dropped 3760 * 3761 * @dev: network device 3762 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 3763 * @ie_len: length of IEs 3764 * @reason: reason code for the disconnection, set it to 0 if unknown 3765 * @gfp: allocation flags 3766 * 3767 * After it calls this function, the driver should enter an idle state 3768 * and not try to connect to any AP any more. 3769 */ 3770 void cfg80211_disconnected(struct net_device *dev, u16 reason, 3771 u8 *ie, size_t ie_len, gfp_t gfp); 3772 3773 /** 3774 * cfg80211_ready_on_channel - notification of remain_on_channel start 3775 * @wdev: wireless device 3776 * @cookie: the request cookie 3777 * @chan: The current channel (from remain_on_channel request) 3778 * @duration: Duration in milliseconds that the driver intents to remain on the 3779 * channel 3780 * @gfp: allocation flags 3781 */ 3782 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, 3783 struct ieee80211_channel *chan, 3784 unsigned int duration, gfp_t gfp); 3785 3786 /** 3787 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 3788 * @wdev: wireless device 3789 * @cookie: the request cookie 3790 * @chan: The current channel (from remain_on_channel request) 3791 * @gfp: allocation flags 3792 */ 3793 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, 3794 struct ieee80211_channel *chan, 3795 gfp_t gfp); 3796 3797 3798 /** 3799 * cfg80211_new_sta - notify userspace about station 3800 * 3801 * @dev: the netdev 3802 * @mac_addr: the station's address 3803 * @sinfo: the station information 3804 * @gfp: allocation flags 3805 */ 3806 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 3807 struct station_info *sinfo, gfp_t gfp); 3808 3809 /** 3810 * cfg80211_del_sta - notify userspace about deletion of a station 3811 * 3812 * @dev: the netdev 3813 * @mac_addr: the station's address 3814 * @gfp: allocation flags 3815 */ 3816 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 3817 3818 /** 3819 * cfg80211_conn_failed - connection request failed notification 3820 * 3821 * @dev: the netdev 3822 * @mac_addr: the station's address 3823 * @reason: the reason for connection failure 3824 * @gfp: allocation flags 3825 * 3826 * Whenever a station tries to connect to an AP and if the station 3827 * could not connect to the AP as the AP has rejected the connection 3828 * for some reasons, this function is called. 3829 * 3830 * The reason for connection failure can be any of the value from 3831 * nl80211_connect_failed_reason enum 3832 */ 3833 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, 3834 enum nl80211_connect_failed_reason reason, 3835 gfp_t gfp); 3836 3837 /** 3838 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 3839 * @wdev: wireless device receiving the frame 3840 * @freq: Frequency on which the frame was received in MHz 3841 * @sig_dbm: signal strength in mBm, or 0 if unknown 3842 * @buf: Management frame (header + body) 3843 * @len: length of the frame data 3844 * @gfp: context flags 3845 * 3846 * This function is called whenever an Action frame is received for a station 3847 * mode interface, but is not processed in kernel. 3848 * 3849 * Return: %true if a user space application has registered for this frame. 3850 * For action frames, that makes it responsible for rejecting unrecognized 3851 * action frames; %false otherwise, in which case for action frames the 3852 * driver is responsible for rejecting the frame. 3853 */ 3854 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, 3855 const u8 *buf, size_t len, gfp_t gfp); 3856 3857 /** 3858 * cfg80211_mgmt_tx_status - notification of TX status for management frame 3859 * @wdev: wireless device receiving the frame 3860 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 3861 * @buf: Management frame (header + body) 3862 * @len: length of the frame data 3863 * @ack: Whether frame was acknowledged 3864 * @gfp: context flags 3865 * 3866 * This function is called whenever a management frame was requested to be 3867 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 3868 * transmission attempt. 3869 */ 3870 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, 3871 const u8 *buf, size_t len, bool ack, gfp_t gfp); 3872 3873 3874 /** 3875 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 3876 * @dev: network device 3877 * @rssi_event: the triggered RSSI event 3878 * @gfp: context flags 3879 * 3880 * This function is called when a configured connection quality monitoring 3881 * rssi threshold reached event occurs. 3882 */ 3883 void cfg80211_cqm_rssi_notify(struct net_device *dev, 3884 enum nl80211_cqm_rssi_threshold_event rssi_event, 3885 gfp_t gfp); 3886 3887 /** 3888 * cfg80211_radar_event - radar detection event 3889 * @wiphy: the wiphy 3890 * @chandef: chandef for the current channel 3891 * @gfp: context flags 3892 * 3893 * This function is called when a radar is detected on the current chanenl. 3894 */ 3895 void cfg80211_radar_event(struct wiphy *wiphy, 3896 struct cfg80211_chan_def *chandef, gfp_t gfp); 3897 3898 /** 3899 * cfg80211_cac_event - Channel availability check (CAC) event 3900 * @netdev: network device 3901 * @event: type of event 3902 * @gfp: context flags 3903 * 3904 * This function is called when a Channel availability check (CAC) is finished 3905 * or aborted. This must be called to notify the completion of a CAC process, 3906 * also by full-MAC drivers. 3907 */ 3908 void cfg80211_cac_event(struct net_device *netdev, 3909 enum nl80211_radar_event event, gfp_t gfp); 3910 3911 3912 /** 3913 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 3914 * @dev: network device 3915 * @peer: peer's MAC address 3916 * @num_packets: how many packets were lost -- should be a fixed threshold 3917 * but probably no less than maybe 50, or maybe a throughput dependent 3918 * threshold (to account for temporary interference) 3919 * @gfp: context flags 3920 */ 3921 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 3922 const u8 *peer, u32 num_packets, gfp_t gfp); 3923 3924 /** 3925 * cfg80211_cqm_txe_notify - TX error rate event 3926 * @dev: network device 3927 * @peer: peer's MAC address 3928 * @num_packets: how many packets were lost 3929 * @rate: % of packets which failed transmission 3930 * @intvl: interval (in s) over which the TX failure threshold was breached. 3931 * @gfp: context flags 3932 * 3933 * Notify userspace when configured % TX failures over number of packets in a 3934 * given interval is exceeded. 3935 */ 3936 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, 3937 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); 3938 3939 /** 3940 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 3941 * @dev: network device 3942 * @bssid: BSSID of AP (to avoid races) 3943 * @replay_ctr: new replay counter 3944 * @gfp: allocation flags 3945 */ 3946 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 3947 const u8 *replay_ctr, gfp_t gfp); 3948 3949 /** 3950 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate 3951 * @dev: network device 3952 * @index: candidate index (the smaller the index, the higher the priority) 3953 * @bssid: BSSID of AP 3954 * @preauth: Whether AP advertises support for RSN pre-authentication 3955 * @gfp: allocation flags 3956 */ 3957 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, 3958 const u8 *bssid, bool preauth, gfp_t gfp); 3959 3960 /** 3961 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame 3962 * @dev: The device the frame matched to 3963 * @addr: the transmitter address 3964 * @gfp: context flags 3965 * 3966 * This function is used in AP mode (only!) to inform userspace that 3967 * a spurious class 3 frame was received, to be able to deauth the 3968 * sender. 3969 * Return: %true if the frame was passed to userspace (or this failed 3970 * for a reason other than not having a subscription.) 3971 */ 3972 bool cfg80211_rx_spurious_frame(struct net_device *dev, 3973 const u8 *addr, gfp_t gfp); 3974 3975 /** 3976 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame 3977 * @dev: The device the frame matched to 3978 * @addr: the transmitter address 3979 * @gfp: context flags 3980 * 3981 * This function is used in AP mode (only!) to inform userspace that 3982 * an associated station sent a 4addr frame but that wasn't expected. 3983 * It is allowed and desirable to send this event only once for each 3984 * station to avoid event flooding. 3985 * Return: %true if the frame was passed to userspace (or this failed 3986 * for a reason other than not having a subscription.) 3987 */ 3988 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, 3989 const u8 *addr, gfp_t gfp); 3990 3991 /** 3992 * cfg80211_probe_status - notify userspace about probe status 3993 * @dev: the device the probe was sent on 3994 * @addr: the address of the peer 3995 * @cookie: the cookie filled in @probe_client previously 3996 * @acked: indicates whether probe was acked or not 3997 * @gfp: allocation flags 3998 */ 3999 void cfg80211_probe_status(struct net_device *dev, const u8 *addr, 4000 u64 cookie, bool acked, gfp_t gfp); 4001 4002 /** 4003 * cfg80211_report_obss_beacon - report beacon from other APs 4004 * @wiphy: The wiphy that received the beacon 4005 * @frame: the frame 4006 * @len: length of the frame 4007 * @freq: frequency the frame was received on 4008 * @sig_dbm: signal strength in mBm, or 0 if unknown 4009 * 4010 * Use this function to report to userspace when a beacon was 4011 * received. It is not useful to call this when there is no 4012 * netdev that is in AP/GO mode. 4013 */ 4014 void cfg80211_report_obss_beacon(struct wiphy *wiphy, 4015 const u8 *frame, size_t len, 4016 int freq, int sig_dbm); 4017 4018 /** 4019 * cfg80211_reg_can_beacon - check if beaconing is allowed 4020 * @wiphy: the wiphy 4021 * @chandef: the channel definition 4022 * 4023 * Return: %true if there is no secondary channel or the secondary channel(s) 4024 * can be used for beaconing (i.e. is not a radar channel etc.) 4025 */ 4026 bool cfg80211_reg_can_beacon(struct wiphy *wiphy, 4027 struct cfg80211_chan_def *chandef); 4028 4029 /* 4030 * cfg80211_ch_switch_notify - update wdev channel and notify userspace 4031 * @dev: the device which switched channels 4032 * @chandef: the new channel definition 4033 * 4034 * Acquires wdev_lock, so must only be called from sleepable driver context! 4035 */ 4036 void cfg80211_ch_switch_notify(struct net_device *dev, 4037 struct cfg80211_chan_def *chandef); 4038 4039 /** 4040 * ieee80211_operating_class_to_band - convert operating class to band 4041 * 4042 * @operating_class: the operating class to convert 4043 * @band: band pointer to fill 4044 * 4045 * Returns %true if the conversion was successful, %false otherwise. 4046 */ 4047 bool ieee80211_operating_class_to_band(u8 operating_class, 4048 enum ieee80211_band *band); 4049 4050 /* 4051 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation 4052 * @dev: the device on which the operation is requested 4053 * @peer: the MAC address of the peer device 4054 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or 4055 * NL80211_TDLS_TEARDOWN) 4056 * @reason_code: the reason code for teardown request 4057 * @gfp: allocation flags 4058 * 4059 * This function is used to request userspace to perform TDLS operation that 4060 * requires knowledge of keys, i.e., link setup or teardown when the AP 4061 * connection uses encryption. This is optional mechanism for the driver to use 4062 * if it can automatically determine when a TDLS link could be useful (e.g., 4063 * based on traffic and signal strength for a peer). 4064 */ 4065 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, 4066 enum nl80211_tdls_operation oper, 4067 u16 reason_code, gfp_t gfp); 4068 4069 /* 4070 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) 4071 * @rate: given rate_info to calculate bitrate from 4072 * 4073 * return 0 if MCS index >= 32 4074 */ 4075 u32 cfg80211_calculate_bitrate(struct rate_info *rate); 4076 4077 /** 4078 * cfg80211_unregister_wdev - remove the given wdev 4079 * @wdev: struct wireless_dev to remove 4080 * 4081 * Call this function only for wdevs that have no netdev assigned, 4082 * e.g. P2P Devices. It removes the device from the list so that 4083 * it can no longer be used. It is necessary to call this function 4084 * even when cfg80211 requests the removal of the interface by 4085 * calling the del_virtual_intf() callback. The function must also 4086 * be called when the driver wishes to unregister the wdev, e.g. 4087 * when the device is unbound from the driver. 4088 * 4089 * Requires the RTNL to be held. 4090 */ 4091 void cfg80211_unregister_wdev(struct wireless_dev *wdev); 4092 4093 /** 4094 * struct cfg80211_ft_event - FT Information Elements 4095 * @ies: FT IEs 4096 * @ies_len: length of the FT IE in bytes 4097 * @target_ap: target AP's MAC address 4098 * @ric_ies: RIC IE 4099 * @ric_ies_len: length of the RIC IE in bytes 4100 */ 4101 struct cfg80211_ft_event_params { 4102 const u8 *ies; 4103 size_t ies_len; 4104 const u8 *target_ap; 4105 const u8 *ric_ies; 4106 size_t ric_ies_len; 4107 }; 4108 4109 /** 4110 * cfg80211_ft_event - notify userspace about FT IE and RIC IE 4111 * @netdev: network device 4112 * @ft_event: IE information 4113 */ 4114 void cfg80211_ft_event(struct net_device *netdev, 4115 struct cfg80211_ft_event_params *ft_event); 4116 4117 /** 4118 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer 4119 * @ies: the input IE buffer 4120 * @len: the input length 4121 * @attr: the attribute ID to find 4122 * @buf: output buffer, can be %NULL if the data isn't needed, e.g. 4123 * if the function is only called to get the needed buffer size 4124 * @bufsize: size of the output buffer 4125 * 4126 * The function finds a given P2P attribute in the (vendor) IEs and 4127 * copies its contents to the given buffer. 4128 * 4129 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is 4130 * malformed or the attribute can't be found (respectively), or the 4131 * length of the found attribute (which can be zero). 4132 */ 4133 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, 4134 enum ieee80211_p2p_attr_id attr, 4135 u8 *buf, unsigned int bufsize); 4136 4137 /** 4138 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN 4139 * @wdev: the wireless device reporting the wakeup 4140 * @wakeup: the wakeup report 4141 * @gfp: allocation flags 4142 * 4143 * This function reports that the given device woke up. If it 4144 * caused the wakeup, report the reason(s), otherwise you may 4145 * pass %NULL as the @wakeup parameter to advertise that something 4146 * else caused the wakeup. 4147 */ 4148 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, 4149 struct cfg80211_wowlan_wakeup *wakeup, 4150 gfp_t gfp); 4151 4152 /** 4153 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver. 4154 * 4155 * @wdev: the wireless device for which critical protocol is stopped. 4156 * 4157 * This function can be called by the driver to indicate it has reverted 4158 * operation back to normal. One reason could be that the duration given 4159 * by .crit_proto_start() has expired. 4160 */ 4161 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp); 4162 4163 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 4164 4165 /* wiphy_printk helpers, similar to dev_printk */ 4166 4167 #define wiphy_printk(level, wiphy, format, args...) \ 4168 dev_printk(level, &(wiphy)->dev, format, ##args) 4169 #define wiphy_emerg(wiphy, format, args...) \ 4170 dev_emerg(&(wiphy)->dev, format, ##args) 4171 #define wiphy_alert(wiphy, format, args...) \ 4172 dev_alert(&(wiphy)->dev, format, ##args) 4173 #define wiphy_crit(wiphy, format, args...) \ 4174 dev_crit(&(wiphy)->dev, format, ##args) 4175 #define wiphy_err(wiphy, format, args...) \ 4176 dev_err(&(wiphy)->dev, format, ##args) 4177 #define wiphy_warn(wiphy, format, args...) \ 4178 dev_warn(&(wiphy)->dev, format, ##args) 4179 #define wiphy_notice(wiphy, format, args...) \ 4180 dev_notice(&(wiphy)->dev, format, ##args) 4181 #define wiphy_info(wiphy, format, args...) \ 4182 dev_info(&(wiphy)->dev, format, ##args) 4183 4184 #define wiphy_debug(wiphy, format, args...) \ 4185 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 4186 4187 #define wiphy_dbg(wiphy, format, args...) \ 4188 dev_dbg(&(wiphy)->dev, format, ##args) 4189 4190 #if defined(VERBOSE_DEBUG) 4191 #define wiphy_vdbg wiphy_dbg 4192 #else 4193 #define wiphy_vdbg(wiphy, format, args...) \ 4194 ({ \ 4195 if (0) \ 4196 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 4197 0; \ 4198 }) 4199 #endif 4200 4201 /* 4202 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 4203 * of using a WARN/WARN_ON to get the message out, including the 4204 * file/line information and a backtrace. 4205 */ 4206 #define wiphy_WARN(wiphy, format, args...) \ 4207 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 4208 4209 #endif /* __NET_CFG80211_H */ 4210