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 <net/regulatory.h> 23 24 /** 25 * DOC: Introduction 26 * 27 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges 28 * userspace and drivers, and offers some utility functionality associated 29 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used 30 * by all modern wireless drivers in Linux, so that they offer a consistent 31 * API through nl80211. For backward compatibility, cfg80211 also offers 32 * wireless extensions to userspace, but hides them from drivers completely. 33 * 34 * Additionally, cfg80211 contains code to help enforce regulatory spectrum 35 * use restrictions. 36 */ 37 38 39 /** 40 * DOC: Device registration 41 * 42 * In order for a driver to use cfg80211, it must register the hardware device 43 * with cfg80211. This happens through a number of hardware capability structs 44 * described below. 45 * 46 * The fundamental structure for each device is the 'wiphy', of which each 47 * instance describes a physical wireless device connected to the system. Each 48 * such wiphy can have zero, one, or many virtual interfaces associated with 49 * it, which need to be identified as such by pointing the network interface's 50 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes 51 * the wireless part of the interface, normally this struct is embedded in the 52 * network interface's private data area. Drivers can optionally allow creating 53 * or destroying virtual interfaces on the fly, but without at least one or the 54 * ability to create some the wireless device isn't useful. 55 * 56 * Each wiphy structure contains device capability information, and also has 57 * a pointer to the various operations the driver offers. The definitions and 58 * structures here describe these capabilities in detail. 59 */ 60 61 /* 62 * wireless hardware capability structures 63 */ 64 65 /** 66 * enum ieee80211_band - supported frequency bands 67 * 68 * The bands are assigned this way because the supported 69 * bitrates differ in these bands. 70 * 71 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band 72 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) 73 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz) 74 * @IEEE80211_NUM_BANDS: number of defined bands 75 */ 76 enum ieee80211_band { 77 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, 78 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, 79 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ, 80 81 /* keep last */ 82 IEEE80211_NUM_BANDS 83 }; 84 85 /** 86 * enum ieee80211_channel_flags - channel flags 87 * 88 * Channel flags set by the regulatory control code. 89 * 90 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 91 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted 92 * on this channel. 93 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. 94 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 95 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 96 * is not permitted. 97 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 98 * is not permitted. 99 */ 100 enum ieee80211_channel_flags { 101 IEEE80211_CHAN_DISABLED = 1<<0, 102 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, 103 IEEE80211_CHAN_NO_IBSS = 1<<2, 104 IEEE80211_CHAN_RADAR = 1<<3, 105 IEEE80211_CHAN_NO_HT40PLUS = 1<<4, 106 IEEE80211_CHAN_NO_HT40MINUS = 1<<5, 107 }; 108 109 #define IEEE80211_CHAN_NO_HT40 \ 110 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 111 112 /** 113 * struct ieee80211_channel - channel definition 114 * 115 * This structure describes a single channel for use 116 * with cfg80211. 117 * 118 * @center_freq: center frequency in MHz 119 * @hw_value: hardware-specific value for the channel 120 * @flags: channel flags from &enum ieee80211_channel_flags. 121 * @orig_flags: channel flags at registration time, used by regulatory 122 * code to support devices with additional restrictions 123 * @band: band this channel belongs to. 124 * @max_antenna_gain: maximum antenna gain in dBi 125 * @max_power: maximum transmission power (in dBm) 126 * @max_reg_power: maximum regulatory transmission power (in dBm) 127 * @beacon_found: helper to regulatory code to indicate when a beacon 128 * has been found on this channel. Use regulatory_hint_found_beacon() 129 * to enable this, this is useful only on 5 GHz band. 130 * @orig_mag: internal use 131 * @orig_mpwr: internal use 132 */ 133 struct ieee80211_channel { 134 enum ieee80211_band band; 135 u16 center_freq; 136 u16 hw_value; 137 u32 flags; 138 int max_antenna_gain; 139 int max_power; 140 int max_reg_power; 141 bool beacon_found; 142 u32 orig_flags; 143 int orig_mag, orig_mpwr; 144 }; 145 146 /** 147 * enum ieee80211_rate_flags - rate flags 148 * 149 * Hardware/specification flags for rates. These are structured 150 * in a way that allows using the same bitrate structure for 151 * different bands/PHY modes. 152 * 153 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short 154 * preamble on this bitrate; only relevant in 2.4GHz band and 155 * with CCK rates. 156 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate 157 * when used with 802.11a (on the 5 GHz band); filled by the 158 * core code when registering the wiphy. 159 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate 160 * when used with 802.11b (on the 2.4 GHz band); filled by the 161 * core code when registering the wiphy. 162 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate 163 * when used with 802.11g (on the 2.4 GHz band); filled by the 164 * core code when registering the wiphy. 165 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. 166 */ 167 enum ieee80211_rate_flags { 168 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, 169 IEEE80211_RATE_MANDATORY_A = 1<<1, 170 IEEE80211_RATE_MANDATORY_B = 1<<2, 171 IEEE80211_RATE_MANDATORY_G = 1<<3, 172 IEEE80211_RATE_ERP_G = 1<<4, 173 }; 174 175 /** 176 * struct ieee80211_rate - bitrate definition 177 * 178 * This structure describes a bitrate that an 802.11 PHY can 179 * operate with. The two values @hw_value and @hw_value_short 180 * are only for driver use when pointers to this structure are 181 * passed around. 182 * 183 * @flags: rate-specific flags 184 * @bitrate: bitrate in units of 100 Kbps 185 * @hw_value: driver/hardware value for this rate 186 * @hw_value_short: driver/hardware value for this rate when 187 * short preamble is used 188 */ 189 struct ieee80211_rate { 190 u32 flags; 191 u16 bitrate; 192 u16 hw_value, hw_value_short; 193 }; 194 195 /** 196 * struct ieee80211_sta_ht_cap - STA's HT capabilities 197 * 198 * This structure describes most essential parameters needed 199 * to describe 802.11n HT capabilities for an STA. 200 * 201 * @ht_supported: is HT supported by the STA 202 * @cap: HT capabilities map as described in 802.11n spec 203 * @ampdu_factor: Maximum A-MPDU length factor 204 * @ampdu_density: Minimum A-MPDU spacing 205 * @mcs: Supported MCS rates 206 */ 207 struct ieee80211_sta_ht_cap { 208 u16 cap; /* use IEEE80211_HT_CAP_ */ 209 bool ht_supported; 210 u8 ampdu_factor; 211 u8 ampdu_density; 212 struct ieee80211_mcs_info mcs; 213 }; 214 215 /** 216 * struct ieee80211_sta_vht_cap - STA's VHT capabilities 217 * 218 * This structure describes most essential parameters needed 219 * to describe 802.11ac VHT capabilities for an STA. 220 * 221 * @vht_supported: is VHT supported by the STA 222 * @cap: VHT capabilities map as described in 802.11ac spec 223 * @vht_mcs: Supported VHT MCS rates 224 */ 225 struct ieee80211_sta_vht_cap { 226 bool vht_supported; 227 u32 cap; /* use IEEE80211_VHT_CAP_ */ 228 struct ieee80211_vht_mcs_info vht_mcs; 229 }; 230 231 /** 232 * struct ieee80211_supported_band - frequency band definition 233 * 234 * This structure describes a frequency band a wiphy 235 * is able to operate in. 236 * 237 * @channels: Array of channels the hardware can operate in 238 * in this band. 239 * @band: the band this structure represents 240 * @n_channels: Number of channels in @channels 241 * @bitrates: Array of bitrates the hardware can operate with 242 * in this band. Must be sorted to give a valid "supported 243 * rates" IE, i.e. CCK rates first, then OFDM. 244 * @n_bitrates: Number of bitrates in @bitrates 245 * @ht_cap: HT capabilities in this band 246 */ 247 struct ieee80211_supported_band { 248 struct ieee80211_channel *channels; 249 struct ieee80211_rate *bitrates; 250 enum ieee80211_band band; 251 int n_channels; 252 int n_bitrates; 253 struct ieee80211_sta_ht_cap ht_cap; 254 struct ieee80211_sta_vht_cap vht_cap; 255 }; 256 257 /* 258 * Wireless hardware/device configuration structures and methods 259 */ 260 261 /** 262 * DOC: Actions and configuration 263 * 264 * Each wireless device and each virtual interface offer a set of configuration 265 * operations and other actions that are invoked by userspace. Each of these 266 * actions is described in the operations structure, and the parameters these 267 * operations use are described separately. 268 * 269 * Additionally, some operations are asynchronous and expect to get status 270 * information via some functions that drivers need to call. 271 * 272 * Scanning and BSS list handling with its associated functionality is described 273 * in a separate chapter. 274 */ 275 276 /** 277 * struct vif_params - describes virtual interface parameters 278 * @use_4addr: use 4-address frames 279 */ 280 struct vif_params { 281 int use_4addr; 282 }; 283 284 /** 285 * struct key_params - key information 286 * 287 * Information about a key 288 * 289 * @key: key material 290 * @key_len: length of key material 291 * @cipher: cipher suite selector 292 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 293 * with the get_key() callback, must be in little endian, 294 * length given by @seq_len. 295 * @seq_len: length of @seq. 296 */ 297 struct key_params { 298 u8 *key; 299 u8 *seq; 300 int key_len; 301 int seq_len; 302 u32 cipher; 303 }; 304 305 /** 306 * enum survey_info_flags - survey information flags 307 * 308 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 309 * @SURVEY_INFO_IN_USE: channel is currently being used 310 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in 311 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in 312 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in 313 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in 314 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in 315 * 316 * Used by the driver to indicate which info in &struct survey_info 317 * it has filled in during the get_survey(). 318 */ 319 enum survey_info_flags { 320 SURVEY_INFO_NOISE_DBM = 1<<0, 321 SURVEY_INFO_IN_USE = 1<<1, 322 SURVEY_INFO_CHANNEL_TIME = 1<<2, 323 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, 324 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, 325 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, 326 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, 327 }; 328 329 /** 330 * struct survey_info - channel survey response 331 * 332 * @channel: the channel this survey record reports, mandatory 333 * @filled: bitflag of flags from &enum survey_info_flags 334 * @noise: channel noise in dBm. This and all following fields are 335 * optional 336 * @channel_time: amount of time in ms the radio spent on the channel 337 * @channel_time_busy: amount of time the primary channel was sensed busy 338 * @channel_time_ext_busy: amount of time the extension channel was sensed busy 339 * @channel_time_rx: amount of time the radio spent receiving data 340 * @channel_time_tx: amount of time the radio spent transmitting data 341 * 342 * Used by dump_survey() to report back per-channel survey information. 343 * 344 * This structure can later be expanded with things like 345 * channel duty cycle etc. 346 */ 347 struct survey_info { 348 struct ieee80211_channel *channel; 349 u64 channel_time; 350 u64 channel_time_busy; 351 u64 channel_time_ext_busy; 352 u64 channel_time_rx; 353 u64 channel_time_tx; 354 u32 filled; 355 s8 noise; 356 }; 357 358 /** 359 * struct cfg80211_crypto_settings - Crypto settings 360 * @wpa_versions: indicates which, if any, WPA versions are enabled 361 * (from enum nl80211_wpa_versions) 362 * @cipher_group: group key cipher suite (or 0 if unset) 363 * @n_ciphers_pairwise: number of AP supported unicast ciphers 364 * @ciphers_pairwise: unicast key cipher suites 365 * @n_akm_suites: number of AKM suites 366 * @akm_suites: AKM suites 367 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 368 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 369 * required to assume that the port is unauthorized until authorized by 370 * user space. Otherwise, port is marked authorized by default. 371 * @control_port_ethertype: the control port protocol that should be 372 * allowed through even on unauthorized ports 373 * @control_port_no_encrypt: TRUE to prevent encryption of control port 374 * protocol frames. 375 */ 376 struct cfg80211_crypto_settings { 377 u32 wpa_versions; 378 u32 cipher_group; 379 int n_ciphers_pairwise; 380 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 381 int n_akm_suites; 382 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 383 bool control_port; 384 __be16 control_port_ethertype; 385 bool control_port_no_encrypt; 386 }; 387 388 /** 389 * struct cfg80211_beacon_data - beacon data 390 * @head: head portion of beacon (before TIM IE) 391 * or %NULL if not changed 392 * @tail: tail portion of beacon (after TIM IE) 393 * or %NULL if not changed 394 * @head_len: length of @head 395 * @tail_len: length of @tail 396 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL 397 * @beacon_ies_len: length of beacon_ies in octets 398 * @proberesp_ies: extra information element(s) to add into Probe Response 399 * frames or %NULL 400 * @proberesp_ies_len: length of proberesp_ies in octets 401 * @assocresp_ies: extra information element(s) to add into (Re)Association 402 * Response frames or %NULL 403 * @assocresp_ies_len: length of assocresp_ies in octets 404 * @probe_resp_len: length of probe response template (@probe_resp) 405 * @probe_resp: probe response template (AP mode only) 406 */ 407 struct cfg80211_beacon_data { 408 const u8 *head, *tail; 409 const u8 *beacon_ies; 410 const u8 *proberesp_ies; 411 const u8 *assocresp_ies; 412 const u8 *probe_resp; 413 414 size_t head_len, tail_len; 415 size_t beacon_ies_len; 416 size_t proberesp_ies_len; 417 size_t assocresp_ies_len; 418 size_t probe_resp_len; 419 }; 420 421 /** 422 * struct cfg80211_ap_settings - AP configuration 423 * 424 * Used to configure an AP interface. 425 * 426 * @channel: the channel to start the AP on 427 * @channel_type: the channel type to use 428 * @beacon: beacon data 429 * @beacon_interval: beacon interval 430 * @dtim_period: DTIM period 431 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from 432 * user space) 433 * @ssid_len: length of @ssid 434 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames 435 * @crypto: crypto settings 436 * @privacy: the BSS uses privacy 437 * @auth_type: Authentication type (algorithm) 438 * @inactivity_timeout: time in seconds to determine station's inactivity. 439 */ 440 struct cfg80211_ap_settings { 441 struct ieee80211_channel *channel; 442 enum nl80211_channel_type channel_type; 443 444 struct cfg80211_beacon_data beacon; 445 446 int beacon_interval, dtim_period; 447 const u8 *ssid; 448 size_t ssid_len; 449 enum nl80211_hidden_ssid hidden_ssid; 450 struct cfg80211_crypto_settings crypto; 451 bool privacy; 452 enum nl80211_auth_type auth_type; 453 int inactivity_timeout; 454 }; 455 456 /** 457 * enum plink_action - actions to perform in mesh peers 458 * 459 * @PLINK_ACTION_INVALID: action 0 is reserved 460 * @PLINK_ACTION_OPEN: start mesh peer link establishment 461 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer 462 */ 463 enum plink_actions { 464 PLINK_ACTION_INVALID, 465 PLINK_ACTION_OPEN, 466 PLINK_ACTION_BLOCK, 467 }; 468 469 /** 470 * enum station_parameters_apply_mask - station parameter values to apply 471 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) 472 * 473 * Not all station parameters have in-band "no change" signalling, 474 * for those that don't these flags will are used. 475 */ 476 enum station_parameters_apply_mask { 477 STATION_PARAM_APPLY_UAPSD = BIT(0), 478 }; 479 480 /** 481 * struct station_parameters - station parameters 482 * 483 * Used to change and create a new station. 484 * 485 * @vlan: vlan interface station should belong to 486 * @supported_rates: supported rates in IEEE 802.11 format 487 * (or NULL for no change) 488 * @supported_rates_len: number of supported rates 489 * @sta_flags_mask: station flags that changed 490 * (bitmask of BIT(NL80211_STA_FLAG_...)) 491 * @sta_flags_set: station flags values 492 * (bitmask of BIT(NL80211_STA_FLAG_...)) 493 * @listen_interval: listen interval or -1 for no change 494 * @aid: AID or zero for no change 495 * @plink_action: plink action to take 496 * @plink_state: set the peer link state for a station 497 * @ht_capa: HT capabilities of station 498 * @uapsd_queues: bitmap of queues configured for uapsd. same format 499 * as the AC bitmap in the QoS info field 500 * @max_sp: max Service Period. same format as the MAX_SP in the 501 * QoS info field (but already shifted down) 502 * @sta_modify_mask: bitmap indicating which parameters changed 503 * (for those that don't have a natural "no change" value), 504 * see &enum station_parameters_apply_mask 505 */ 506 struct station_parameters { 507 u8 *supported_rates; 508 struct net_device *vlan; 509 u32 sta_flags_mask, sta_flags_set; 510 u32 sta_modify_mask; 511 int listen_interval; 512 u16 aid; 513 u8 supported_rates_len; 514 u8 plink_action; 515 u8 plink_state; 516 struct ieee80211_ht_cap *ht_capa; 517 u8 uapsd_queues; 518 u8 max_sp; 519 }; 520 521 /** 522 * enum station_info_flags - station information flags 523 * 524 * Used by the driver to indicate which info in &struct station_info 525 * it has filled in during get_station() or dump_station(). 526 * 527 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 528 * @STATION_INFO_RX_BYTES: @rx_bytes filled 529 * @STATION_INFO_TX_BYTES: @tx_bytes filled 530 * @STATION_INFO_LLID: @llid filled 531 * @STATION_INFO_PLID: @plid filled 532 * @STATION_INFO_PLINK_STATE: @plink_state filled 533 * @STATION_INFO_SIGNAL: @signal filled 534 * @STATION_INFO_TX_BITRATE: @txrate fields are filled 535 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 536 * @STATION_INFO_RX_PACKETS: @rx_packets filled 537 * @STATION_INFO_TX_PACKETS: @tx_packets filled 538 * @STATION_INFO_TX_RETRIES: @tx_retries filled 539 * @STATION_INFO_TX_FAILED: @tx_failed filled 540 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled 541 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled 542 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled 543 * @STATION_INFO_BSS_PARAM: @bss_param filled 544 * @STATION_INFO_CONNECTED_TIME: @connected_time filled 545 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled 546 * @STATION_INFO_STA_FLAGS: @sta_flags filled 547 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled 548 * @STATION_INFO_T_OFFSET: @t_offset filled 549 */ 550 enum station_info_flags { 551 STATION_INFO_INACTIVE_TIME = 1<<0, 552 STATION_INFO_RX_BYTES = 1<<1, 553 STATION_INFO_TX_BYTES = 1<<2, 554 STATION_INFO_LLID = 1<<3, 555 STATION_INFO_PLID = 1<<4, 556 STATION_INFO_PLINK_STATE = 1<<5, 557 STATION_INFO_SIGNAL = 1<<6, 558 STATION_INFO_TX_BITRATE = 1<<7, 559 STATION_INFO_RX_PACKETS = 1<<8, 560 STATION_INFO_TX_PACKETS = 1<<9, 561 STATION_INFO_TX_RETRIES = 1<<10, 562 STATION_INFO_TX_FAILED = 1<<11, 563 STATION_INFO_RX_DROP_MISC = 1<<12, 564 STATION_INFO_SIGNAL_AVG = 1<<13, 565 STATION_INFO_RX_BITRATE = 1<<14, 566 STATION_INFO_BSS_PARAM = 1<<15, 567 STATION_INFO_CONNECTED_TIME = 1<<16, 568 STATION_INFO_ASSOC_REQ_IES = 1<<17, 569 STATION_INFO_STA_FLAGS = 1<<18, 570 STATION_INFO_BEACON_LOSS_COUNT = 1<<19, 571 STATION_INFO_T_OFFSET = 1<<20, 572 }; 573 574 /** 575 * enum station_info_rate_flags - bitrate info flags 576 * 577 * Used by the driver to indicate the specific rate transmission 578 * type for 802.11n transmissions. 579 * 580 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled 581 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission 582 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 583 * @RATE_INFO_FLAGS_60G: 60gHz MCS 584 */ 585 enum rate_info_flags { 586 RATE_INFO_FLAGS_MCS = 1<<0, 587 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1, 588 RATE_INFO_FLAGS_SHORT_GI = 1<<2, 589 RATE_INFO_FLAGS_60G = 1<<3, 590 }; 591 592 /** 593 * struct rate_info - bitrate information 594 * 595 * Information about a receiving or transmitting bitrate 596 * 597 * @flags: bitflag of flags from &enum rate_info_flags 598 * @mcs: mcs index if struct describes a 802.11n bitrate 599 * @legacy: bitrate in 100kbit/s for 802.11abg 600 */ 601 struct rate_info { 602 u8 flags; 603 u8 mcs; 604 u16 legacy; 605 }; 606 607 /** 608 * enum station_info_rate_flags - bitrate info flags 609 * 610 * Used by the driver to indicate the specific rate transmission 611 * type for 802.11n transmissions. 612 * 613 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 614 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 615 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 616 */ 617 enum bss_param_flags { 618 BSS_PARAM_FLAGS_CTS_PROT = 1<<0, 619 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, 620 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, 621 }; 622 623 /** 624 * struct sta_bss_parameters - BSS parameters for the attached station 625 * 626 * Information about the currently associated BSS 627 * 628 * @flags: bitflag of flags from &enum bss_param_flags 629 * @dtim_period: DTIM period for the BSS 630 * @beacon_interval: beacon interval 631 */ 632 struct sta_bss_parameters { 633 u8 flags; 634 u8 dtim_period; 635 u16 beacon_interval; 636 }; 637 638 /** 639 * struct station_info - station information 640 * 641 * Station information filled by driver for get_station() and dump_station. 642 * 643 * @filled: bitflag of flags from &enum station_info_flags 644 * @connected_time: time(in secs) since a station is last connected 645 * @inactive_time: time since last station activity (tx/rx) in milliseconds 646 * @rx_bytes: bytes received from this station 647 * @tx_bytes: bytes transmitted to this station 648 * @llid: mesh local link id 649 * @plid: mesh peer link id 650 * @plink_state: mesh peer link state 651 * @signal: The signal strength, type depends on the wiphy's signal_type. 652 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 653 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. 654 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 655 * @txrate: current unicast bitrate from this station 656 * @rxrate: current unicast bitrate to this station 657 * @rx_packets: packets received from this station 658 * @tx_packets: packets transmitted to this station 659 * @tx_retries: cumulative retry counts 660 * @tx_failed: number of failed transmissions (retries exceeded, no ACK) 661 * @rx_dropped_misc: Dropped for un-specified reason. 662 * @bss_param: current BSS parameters 663 * @generation: generation number for nl80211 dumps. 664 * This number should increase every time the list of stations 665 * changes, i.e. when a station is added or removed, so that 666 * userspace can tell whether it got a consistent snapshot. 667 * @assoc_req_ies: IEs from (Re)Association Request. 668 * This is used only when in AP mode with drivers that do not use 669 * user space MLME/SME implementation. The information is provided for 670 * the cfg80211_new_sta() calls to notify user space of the IEs. 671 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. 672 * @sta_flags: station flags mask & values 673 * @beacon_loss_count: Number of times beacon loss event has triggered. 674 * @t_offset: Time offset of the station relative to this host. 675 */ 676 struct station_info { 677 u32 filled; 678 u32 connected_time; 679 u32 inactive_time; 680 u32 rx_bytes; 681 u32 tx_bytes; 682 u16 llid; 683 u16 plid; 684 u8 plink_state; 685 s8 signal; 686 s8 signal_avg; 687 struct rate_info txrate; 688 struct rate_info rxrate; 689 u32 rx_packets; 690 u32 tx_packets; 691 u32 tx_retries; 692 u32 tx_failed; 693 u32 rx_dropped_misc; 694 struct sta_bss_parameters bss_param; 695 struct nl80211_sta_flag_update sta_flags; 696 697 int generation; 698 699 const u8 *assoc_req_ies; 700 size_t assoc_req_ies_len; 701 702 u32 beacon_loss_count; 703 s64 t_offset; 704 705 /* 706 * Note: Add a new enum station_info_flags value for each new field and 707 * use it to check which fields are initialized. 708 */ 709 }; 710 711 /** 712 * enum monitor_flags - monitor flags 713 * 714 * Monitor interface configuration flags. Note that these must be the bits 715 * according to the nl80211 flags. 716 * 717 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 718 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 719 * @MONITOR_FLAG_CONTROL: pass control frames 720 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 721 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 722 */ 723 enum monitor_flags { 724 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 725 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 726 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 727 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 728 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 729 }; 730 731 /** 732 * enum mpath_info_flags - mesh path information flags 733 * 734 * Used by the driver to indicate which info in &struct mpath_info it has filled 735 * in during get_station() or dump_station(). 736 * 737 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 738 * @MPATH_INFO_SN: @sn filled 739 * @MPATH_INFO_METRIC: @metric filled 740 * @MPATH_INFO_EXPTIME: @exptime filled 741 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 742 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 743 * @MPATH_INFO_FLAGS: @flags filled 744 */ 745 enum mpath_info_flags { 746 MPATH_INFO_FRAME_QLEN = BIT(0), 747 MPATH_INFO_SN = BIT(1), 748 MPATH_INFO_METRIC = BIT(2), 749 MPATH_INFO_EXPTIME = BIT(3), 750 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 751 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 752 MPATH_INFO_FLAGS = BIT(6), 753 }; 754 755 /** 756 * struct mpath_info - mesh path information 757 * 758 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 759 * 760 * @filled: bitfield of flags from &enum mpath_info_flags 761 * @frame_qlen: number of queued frames for this destination 762 * @sn: target sequence number 763 * @metric: metric (cost) of this mesh path 764 * @exptime: expiration time for the mesh path from now, in msecs 765 * @flags: mesh path flags 766 * @discovery_timeout: total mesh path discovery timeout, in msecs 767 * @discovery_retries: mesh path discovery retries 768 * @generation: generation number for nl80211 dumps. 769 * This number should increase every time the list of mesh paths 770 * changes, i.e. when a station is added or removed, so that 771 * userspace can tell whether it got a consistent snapshot. 772 */ 773 struct mpath_info { 774 u32 filled; 775 u32 frame_qlen; 776 u32 sn; 777 u32 metric; 778 u32 exptime; 779 u32 discovery_timeout; 780 u8 discovery_retries; 781 u8 flags; 782 783 int generation; 784 }; 785 786 /** 787 * struct bss_parameters - BSS parameters 788 * 789 * Used to change BSS parameters (mainly for AP mode). 790 * 791 * @use_cts_prot: Whether to use CTS protection 792 * (0 = no, 1 = yes, -1 = do not change) 793 * @use_short_preamble: Whether the use of short preambles is allowed 794 * (0 = no, 1 = yes, -1 = do not change) 795 * @use_short_slot_time: Whether the use of short slot time is allowed 796 * (0 = no, 1 = yes, -1 = do not change) 797 * @basic_rates: basic rates in IEEE 802.11 format 798 * (or NULL for no change) 799 * @basic_rates_len: number of basic rates 800 * @ap_isolate: do not forward packets between connected stations 801 * @ht_opmode: HT Operation mode 802 * (u16 = opmode, -1 = do not change) 803 */ 804 struct bss_parameters { 805 int use_cts_prot; 806 int use_short_preamble; 807 int use_short_slot_time; 808 u8 *basic_rates; 809 u8 basic_rates_len; 810 int ap_isolate; 811 int ht_opmode; 812 }; 813 814 /** 815 * struct mesh_config - 802.11s mesh configuration 816 * 817 * These parameters can be changed while the mesh is active. 818 * 819 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used 820 * by the Mesh Peering Open message 821 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units 822 * used by the Mesh Peering Open message 823 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by 824 * the mesh peering management to close a mesh peering 825 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this 826 * mesh interface 827 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can 828 * be sent to establish a new peer link instance in a mesh 829 * @dot11MeshTTL: the value of TTL field set at a source mesh STA 830 * @element_ttl: the value of TTL field set at a mesh STA for path selection 831 * elements 832 * @auto_open_plinks: whether we should automatically open peer links when we 833 * detect compatible mesh peers 834 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to 835 * synchronize to for 11s default synchronization method 836 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ 837 * that an originator mesh STA can send to a particular path target 838 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds 839 * @min_discovery_timeout: the minimum length of time to wait until giving up on 840 * a path discovery in milliseconds 841 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs 842 * receiving a PREQ shall consider the forwarding information from the 843 * root to be valid. (TU = time unit) 844 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during 845 * which a mesh STA can send only one action frame containing a PREQ 846 * element 847 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during 848 * which a mesh STA can send only one Action frame containing a PERR 849 * element 850 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that 851 * it takes for an HWMP information element to propagate across the mesh 852 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA 853 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root 854 * announcements are transmitted 855 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh 856 * station has access to a broader network beyond the MBSS. (This is 857 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true 858 * only means that the station will announce others it's a mesh gate, but 859 * not necessarily using the gate announcement protocol. Still keeping the 860 * same nomenclature to be in sync with the spec) 861 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding 862 * entity (default is TRUE - forwarding entity) 863 * @rssi_threshold: the threshold for average signal strength of candidate 864 * station to establish a peer link 865 * @ht_opmode: mesh HT protection mode 866 * 867 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs 868 * receiving a proactive PREQ shall consider the forwarding information to 869 * the root mesh STA to be valid. 870 * 871 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive 872 * PREQs are transmitted. 873 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) 874 * during which a mesh STA can send only one Action frame containing 875 * a PREQ element for root path confirmation. 876 */ 877 struct mesh_config { 878 u16 dot11MeshRetryTimeout; 879 u16 dot11MeshConfirmTimeout; 880 u16 dot11MeshHoldingTimeout; 881 u16 dot11MeshMaxPeerLinks; 882 u8 dot11MeshMaxRetries; 883 u8 dot11MeshTTL; 884 u8 element_ttl; 885 bool auto_open_plinks; 886 u32 dot11MeshNbrOffsetMaxNeighbor; 887 u8 dot11MeshHWMPmaxPREQretries; 888 u32 path_refresh_time; 889 u16 min_discovery_timeout; 890 u32 dot11MeshHWMPactivePathTimeout; 891 u16 dot11MeshHWMPpreqMinInterval; 892 u16 dot11MeshHWMPperrMinInterval; 893 u16 dot11MeshHWMPnetDiameterTraversalTime; 894 u8 dot11MeshHWMPRootMode; 895 u16 dot11MeshHWMPRannInterval; 896 bool dot11MeshGateAnnouncementProtocol; 897 bool dot11MeshForwarding; 898 s32 rssi_threshold; 899 u16 ht_opmode; 900 u32 dot11MeshHWMPactivePathToRootTimeout; 901 u16 dot11MeshHWMProotInterval; 902 u16 dot11MeshHWMPconfirmationInterval; 903 }; 904 905 /** 906 * struct mesh_setup - 802.11s mesh setup configuration 907 * @channel: the channel to start the mesh network on 908 * @channel_type: the channel type to use 909 * @mesh_id: the mesh ID 910 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 911 * @sync_method: which synchronization method to use 912 * @path_sel_proto: which path selection protocol to use 913 * @path_metric: which metric to use 914 * @ie: vendor information elements (optional) 915 * @ie_len: length of vendor information elements 916 * @is_authenticated: this mesh requires authentication 917 * @is_secure: this mesh uses security 918 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a] 919 * 920 * These parameters are fixed when the mesh is created. 921 */ 922 struct mesh_setup { 923 struct ieee80211_channel *channel; 924 enum nl80211_channel_type channel_type; 925 const u8 *mesh_id; 926 u8 mesh_id_len; 927 u8 sync_method; 928 u8 path_sel_proto; 929 u8 path_metric; 930 const u8 *ie; 931 u8 ie_len; 932 bool is_authenticated; 933 bool is_secure; 934 int mcast_rate[IEEE80211_NUM_BANDS]; 935 }; 936 937 /** 938 * struct ieee80211_txq_params - TX queue parameters 939 * @ac: AC identifier 940 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 941 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 942 * 1..32767] 943 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 944 * 1..32767] 945 * @aifs: Arbitration interframe space [0..255] 946 */ 947 struct ieee80211_txq_params { 948 enum nl80211_ac ac; 949 u16 txop; 950 u16 cwmin; 951 u16 cwmax; 952 u8 aifs; 953 }; 954 955 /* from net/wireless.h */ 956 struct wiphy; 957 958 /** 959 * DOC: Scanning and BSS list handling 960 * 961 * The scanning process itself is fairly simple, but cfg80211 offers quite 962 * a bit of helper functionality. To start a scan, the scan operation will 963 * be invoked with a scan definition. This scan definition contains the 964 * channels to scan, and the SSIDs to send probe requests for (including the 965 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 966 * probe. Additionally, a scan request may contain extra information elements 967 * that should be added to the probe request. The IEs are guaranteed to be 968 * well-formed, and will not exceed the maximum length the driver advertised 969 * in the wiphy structure. 970 * 971 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 972 * it is responsible for maintaining the BSS list; the driver should not 973 * maintain a list itself. For this notification, various functions exist. 974 * 975 * Since drivers do not maintain a BSS list, there are also a number of 976 * functions to search for a BSS and obtain information about it from the 977 * BSS structure cfg80211 maintains. The BSS list is also made available 978 * to userspace. 979 */ 980 981 /** 982 * struct cfg80211_ssid - SSID description 983 * @ssid: the SSID 984 * @ssid_len: length of the ssid 985 */ 986 struct cfg80211_ssid { 987 u8 ssid[IEEE80211_MAX_SSID_LEN]; 988 u8 ssid_len; 989 }; 990 991 /** 992 * struct cfg80211_scan_request - scan request description 993 * 994 * @ssids: SSIDs to scan for (active scan only) 995 * @n_ssids: number of SSIDs 996 * @channels: channels to scan on. 997 * @n_channels: total number of channels to scan 998 * @ie: optional information element(s) to add into Probe Request or %NULL 999 * @ie_len: length of ie in octets 1000 * @rates: bitmap of rates to advertise for each band 1001 * @wiphy: the wiphy this was for 1002 * @wdev: the wireless device to scan for 1003 * @aborted: (internal) scan request was notified as aborted 1004 * @no_cck: used to send probe requests at non CCK rate in 2GHz band 1005 */ 1006 struct cfg80211_scan_request { 1007 struct cfg80211_ssid *ssids; 1008 int n_ssids; 1009 u32 n_channels; 1010 const u8 *ie; 1011 size_t ie_len; 1012 1013 u32 rates[IEEE80211_NUM_BANDS]; 1014 1015 struct wireless_dev *wdev; 1016 1017 /* internal */ 1018 struct wiphy *wiphy; 1019 bool aborted; 1020 bool no_cck; 1021 1022 /* keep last */ 1023 struct ieee80211_channel *channels[0]; 1024 }; 1025 1026 /** 1027 * struct cfg80211_match_set - sets of attributes to match 1028 * 1029 * @ssid: SSID to be matched 1030 */ 1031 struct cfg80211_match_set { 1032 struct cfg80211_ssid ssid; 1033 }; 1034 1035 /** 1036 * struct cfg80211_sched_scan_request - scheduled scan request description 1037 * 1038 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 1039 * @n_ssids: number of SSIDs 1040 * @n_channels: total number of channels to scan 1041 * @interval: interval between each scheduled scan cycle 1042 * @ie: optional information element(s) to add into Probe Request or %NULL 1043 * @ie_len: length of ie in octets 1044 * @match_sets: sets of parameters to be matched for a scan result 1045 * entry to be considered valid and to be passed to the host 1046 * (others are filtered out). 1047 * If ommited, all results are passed. 1048 * @n_match_sets: number of match sets 1049 * @wiphy: the wiphy this was for 1050 * @dev: the interface 1051 * @channels: channels to scan 1052 * @rssi_thold: don't report scan results below this threshold (in s32 dBm) 1053 */ 1054 struct cfg80211_sched_scan_request { 1055 struct cfg80211_ssid *ssids; 1056 int n_ssids; 1057 u32 n_channels; 1058 u32 interval; 1059 const u8 *ie; 1060 size_t ie_len; 1061 struct cfg80211_match_set *match_sets; 1062 int n_match_sets; 1063 s32 rssi_thold; 1064 1065 /* internal */ 1066 struct wiphy *wiphy; 1067 struct net_device *dev; 1068 1069 /* keep last */ 1070 struct ieee80211_channel *channels[0]; 1071 }; 1072 1073 /** 1074 * enum cfg80211_signal_type - signal type 1075 * 1076 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 1077 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 1078 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 1079 */ 1080 enum cfg80211_signal_type { 1081 CFG80211_SIGNAL_TYPE_NONE, 1082 CFG80211_SIGNAL_TYPE_MBM, 1083 CFG80211_SIGNAL_TYPE_UNSPEC, 1084 }; 1085 1086 /** 1087 * struct cfg80211_bss - BSS description 1088 * 1089 * This structure describes a BSS (which may also be a mesh network) 1090 * for use in scan results and similar. 1091 * 1092 * @channel: channel this BSS is on 1093 * @bssid: BSSID of the BSS 1094 * @tsf: timestamp of last received update 1095 * @beacon_interval: the beacon interval as from the frame 1096 * @capability: the capability field in host byte order 1097 * @information_elements: the information elements (Note that there 1098 * is no guarantee that these are well-formed!); this is a pointer to 1099 * either the beacon_ies or proberesp_ies depending on whether Probe 1100 * Response frame has been received 1101 * @len_information_elements: total length of the information elements 1102 * @beacon_ies: the information elements from the last Beacon frame 1103 * @len_beacon_ies: total length of the beacon_ies 1104 * @proberesp_ies: the information elements from the last Probe Response frame 1105 * @len_proberesp_ies: total length of the proberesp_ies 1106 * @signal: signal strength value (type depends on the wiphy's signal_type) 1107 * @free_priv: function pointer to free private data 1108 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 1109 */ 1110 struct cfg80211_bss { 1111 struct ieee80211_channel *channel; 1112 1113 u8 bssid[ETH_ALEN]; 1114 u64 tsf; 1115 u16 beacon_interval; 1116 u16 capability; 1117 u8 *information_elements; 1118 size_t len_information_elements; 1119 u8 *beacon_ies; 1120 size_t len_beacon_ies; 1121 u8 *proberesp_ies; 1122 size_t len_proberesp_ies; 1123 1124 s32 signal; 1125 1126 void (*free_priv)(struct cfg80211_bss *bss); 1127 u8 priv[0] __attribute__((__aligned__(sizeof(void *)))); 1128 }; 1129 1130 /** 1131 * ieee80211_bss_get_ie - find IE with given ID 1132 * @bss: the bss to search 1133 * @ie: the IE ID 1134 * Returns %NULL if not found. 1135 */ 1136 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 1137 1138 1139 /** 1140 * struct cfg80211_auth_request - Authentication request data 1141 * 1142 * This structure provides information needed to complete IEEE 802.11 1143 * authentication. 1144 * 1145 * @bss: The BSS to authenticate with. 1146 * @auth_type: Authentication type (algorithm) 1147 * @ie: Extra IEs to add to Authentication frame or %NULL 1148 * @ie_len: Length of ie buffer in octets 1149 * @key_len: length of WEP key for shared key authentication 1150 * @key_idx: index of WEP key for shared key authentication 1151 * @key: WEP key for shared key authentication 1152 */ 1153 struct cfg80211_auth_request { 1154 struct cfg80211_bss *bss; 1155 const u8 *ie; 1156 size_t ie_len; 1157 enum nl80211_auth_type auth_type; 1158 const u8 *key; 1159 u8 key_len, key_idx; 1160 }; 1161 1162 /** 1163 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. 1164 * 1165 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) 1166 */ 1167 enum cfg80211_assoc_req_flags { 1168 ASSOC_REQ_DISABLE_HT = BIT(0), 1169 }; 1170 1171 /** 1172 * struct cfg80211_assoc_request - (Re)Association request data 1173 * 1174 * This structure provides information needed to complete IEEE 802.11 1175 * (re)association. 1176 * @bss: The BSS to associate with. If the call is successful the driver 1177 * is given a reference that it must release, normally via a call to 1178 * cfg80211_send_rx_assoc(), or, if association timed out, with a 1179 * call to cfg80211_put_bss() (in addition to calling 1180 * cfg80211_send_assoc_timeout()) 1181 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 1182 * @ie_len: Length of ie buffer in octets 1183 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 1184 * @crypto: crypto settings 1185 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 1186 * @flags: See &enum cfg80211_assoc_req_flags 1187 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1188 * will be used in ht_capa. Un-supported values will be ignored. 1189 * @ht_capa_mask: The bits of ht_capa which are to be used. 1190 */ 1191 struct cfg80211_assoc_request { 1192 struct cfg80211_bss *bss; 1193 const u8 *ie, *prev_bssid; 1194 size_t ie_len; 1195 struct cfg80211_crypto_settings crypto; 1196 bool use_mfp; 1197 u32 flags; 1198 struct ieee80211_ht_cap ht_capa; 1199 struct ieee80211_ht_cap ht_capa_mask; 1200 }; 1201 1202 /** 1203 * struct cfg80211_deauth_request - Deauthentication request data 1204 * 1205 * This structure provides information needed to complete IEEE 802.11 1206 * deauthentication. 1207 * 1208 * @bssid: the BSSID of the BSS to deauthenticate from 1209 * @ie: Extra IEs to add to Deauthentication frame or %NULL 1210 * @ie_len: Length of ie buffer in octets 1211 * @reason_code: The reason code for the deauthentication 1212 */ 1213 struct cfg80211_deauth_request { 1214 const u8 *bssid; 1215 const u8 *ie; 1216 size_t ie_len; 1217 u16 reason_code; 1218 }; 1219 1220 /** 1221 * struct cfg80211_disassoc_request - Disassociation request data 1222 * 1223 * This structure provides information needed to complete IEEE 802.11 1224 * disassocation. 1225 * 1226 * @bss: the BSS to disassociate from 1227 * @ie: Extra IEs to add to Disassociation frame or %NULL 1228 * @ie_len: Length of ie buffer in octets 1229 * @reason_code: The reason code for the disassociation 1230 * @local_state_change: This is a request for a local state only, i.e., no 1231 * Disassociation frame is to be transmitted. 1232 */ 1233 struct cfg80211_disassoc_request { 1234 struct cfg80211_bss *bss; 1235 const u8 *ie; 1236 size_t ie_len; 1237 u16 reason_code; 1238 bool local_state_change; 1239 }; 1240 1241 /** 1242 * struct cfg80211_ibss_params - IBSS parameters 1243 * 1244 * This structure defines the IBSS parameters for the join_ibss() 1245 * method. 1246 * 1247 * @ssid: The SSID, will always be non-null. 1248 * @ssid_len: The length of the SSID, will always be non-zero. 1249 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1250 * search for IBSSs with a different BSSID. 1251 * @channel: The channel to use if no IBSS can be found to join. 1252 * @channel_type: channel type (HT mode) 1253 * @channel_fixed: The channel should be fixed -- do not search for 1254 * IBSSs to join on other channels. 1255 * @ie: information element(s) to include in the beacon 1256 * @ie_len: length of that 1257 * @beacon_interval: beacon interval to use 1258 * @privacy: this is a protected network, keys will be configured 1259 * after joining 1260 * @control_port: whether user space controls IEEE 802.1X port, i.e., 1261 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 1262 * required to assume that the port is unauthorized until authorized by 1263 * user space. Otherwise, port is marked authorized by default. 1264 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1265 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1266 */ 1267 struct cfg80211_ibss_params { 1268 u8 *ssid; 1269 u8 *bssid; 1270 struct ieee80211_channel *channel; 1271 enum nl80211_channel_type channel_type; 1272 u8 *ie; 1273 u8 ssid_len, ie_len; 1274 u16 beacon_interval; 1275 u32 basic_rates; 1276 bool channel_fixed; 1277 bool privacy; 1278 bool control_port; 1279 int mcast_rate[IEEE80211_NUM_BANDS]; 1280 }; 1281 1282 /** 1283 * struct cfg80211_connect_params - Connection parameters 1284 * 1285 * This structure provides information needed to complete IEEE 802.11 1286 * authentication and association. 1287 * 1288 * @channel: The channel to use or %NULL if not specified (auto-select based 1289 * on scan results) 1290 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1291 * results) 1292 * @ssid: SSID 1293 * @ssid_len: Length of ssid in octets 1294 * @auth_type: Authentication type (algorithm) 1295 * @ie: IEs for association request 1296 * @ie_len: Length of assoc_ie in octets 1297 * @privacy: indicates whether privacy-enabled APs should be used 1298 * @crypto: crypto settings 1299 * @key_len: length of WEP key for shared key authentication 1300 * @key_idx: index of WEP key for shared key authentication 1301 * @key: WEP key for shared key authentication 1302 * @flags: See &enum cfg80211_assoc_req_flags 1303 * @bg_scan_period: Background scan period in seconds 1304 * or -1 to indicate that default value is to be used. 1305 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1306 * will be used in ht_capa. Un-supported values will be ignored. 1307 * @ht_capa_mask: The bits of ht_capa which are to be used. 1308 */ 1309 struct cfg80211_connect_params { 1310 struct ieee80211_channel *channel; 1311 u8 *bssid; 1312 u8 *ssid; 1313 size_t ssid_len; 1314 enum nl80211_auth_type auth_type; 1315 u8 *ie; 1316 size_t ie_len; 1317 bool privacy; 1318 struct cfg80211_crypto_settings crypto; 1319 const u8 *key; 1320 u8 key_len, key_idx; 1321 u32 flags; 1322 int bg_scan_period; 1323 struct ieee80211_ht_cap ht_capa; 1324 struct ieee80211_ht_cap ht_capa_mask; 1325 }; 1326 1327 /** 1328 * enum wiphy_params_flags - set_wiphy_params bitfield values 1329 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1330 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1331 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1332 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1333 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1334 */ 1335 enum wiphy_params_flags { 1336 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1337 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1338 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1339 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1340 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1341 }; 1342 1343 /* 1344 * cfg80211_bitrate_mask - masks for bitrate control 1345 */ 1346 struct cfg80211_bitrate_mask { 1347 struct { 1348 u32 legacy; 1349 u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; 1350 } control[IEEE80211_NUM_BANDS]; 1351 }; 1352 /** 1353 * struct cfg80211_pmksa - PMK Security Association 1354 * 1355 * This structure is passed to the set/del_pmksa() method for PMKSA 1356 * caching. 1357 * 1358 * @bssid: The AP's BSSID. 1359 * @pmkid: The PMK material itself. 1360 */ 1361 struct cfg80211_pmksa { 1362 u8 *bssid; 1363 u8 *pmkid; 1364 }; 1365 1366 /** 1367 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern 1368 * @mask: bitmask where to match pattern and where to ignore bytes, 1369 * one bit per byte, in same format as nl80211 1370 * @pattern: bytes to match where bitmask is 1 1371 * @pattern_len: length of pattern (in bytes) 1372 * 1373 * Internal note: @mask and @pattern are allocated in one chunk of 1374 * memory, free @mask only! 1375 */ 1376 struct cfg80211_wowlan_trig_pkt_pattern { 1377 u8 *mask, *pattern; 1378 int pattern_len; 1379 }; 1380 1381 /** 1382 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1383 * 1384 * This structure defines the enabled WoWLAN triggers for the device. 1385 * @any: wake up on any activity -- special trigger if device continues 1386 * operating as normal during suspend 1387 * @disconnect: wake up if getting disconnected 1388 * @magic_pkt: wake up on receiving magic packet 1389 * @patterns: wake up on receiving packet matching a pattern 1390 * @n_patterns: number of patterns 1391 * @gtk_rekey_failure: wake up on GTK rekey failure 1392 * @eap_identity_req: wake up on EAP identity request packet 1393 * @four_way_handshake: wake up on 4-way handshake 1394 * @rfkill_release: wake up when rfkill is released 1395 */ 1396 struct cfg80211_wowlan { 1397 bool any, disconnect, magic_pkt, gtk_rekey_failure, 1398 eap_identity_req, four_way_handshake, 1399 rfkill_release; 1400 struct cfg80211_wowlan_trig_pkt_pattern *patterns; 1401 int n_patterns; 1402 }; 1403 1404 /** 1405 * struct cfg80211_gtk_rekey_data - rekey data 1406 * @kek: key encryption key 1407 * @kck: key confirmation key 1408 * @replay_ctr: replay counter 1409 */ 1410 struct cfg80211_gtk_rekey_data { 1411 u8 kek[NL80211_KEK_LEN]; 1412 u8 kck[NL80211_KCK_LEN]; 1413 u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; 1414 }; 1415 1416 /** 1417 * struct cfg80211_ops - backend description for wireless configuration 1418 * 1419 * This struct is registered by fullmac card drivers and/or wireless stacks 1420 * in order to handle configuration requests on their interfaces. 1421 * 1422 * All callbacks except where otherwise noted should return 0 1423 * on success or a negative error code. 1424 * 1425 * All operations are currently invoked under rtnl for consistency with the 1426 * wireless extensions but this is subject to reevaluation as soon as this 1427 * code is used more widely and we have a first user without wext. 1428 * 1429 * @suspend: wiphy device needs to be suspended. The variable @wow will 1430 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 1431 * configured for the device. 1432 * @resume: wiphy device needs to be resumed 1433 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback 1434 * to call device_set_wakeup_enable() to enable/disable wakeup from 1435 * the device. 1436 * 1437 * @add_virtual_intf: create a new virtual interface with the given name, 1438 * must set the struct wireless_dev's iftype. Beware: You must create 1439 * the new netdev in the wiphy's network namespace! Returns the struct 1440 * wireless_dev, or an ERR_PTR. 1441 * 1442 * @del_virtual_intf: remove the virtual interface 1443 * 1444 * @change_virtual_intf: change type/configuration of virtual interface, 1445 * keep the struct wireless_dev's iftype updated. 1446 * 1447 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 1448 * when adding a group key. 1449 * 1450 * @get_key: get information about the key with the given parameters. 1451 * @mac_addr will be %NULL when requesting information for a group 1452 * key. All pointers given to the @callback function need not be valid 1453 * after it returns. This function should return an error if it is 1454 * not possible to retrieve the key, -ENOENT if it doesn't exist. 1455 * 1456 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 1457 * and @key_index, return -ENOENT if the key doesn't exist. 1458 * 1459 * @set_default_key: set the default key on an interface 1460 * 1461 * @set_default_mgmt_key: set the default management frame key on an interface 1462 * 1463 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 1464 * 1465 * @start_ap: Start acting in AP mode defined by the parameters. 1466 * @change_beacon: Change the beacon parameters for an access point mode 1467 * interface. This should reject the call when AP mode wasn't started. 1468 * @stop_ap: Stop being an AP, including stopping beaconing. 1469 * 1470 * @add_station: Add a new station. 1471 * @del_station: Remove a station; @mac may be NULL to remove all stations. 1472 * @change_station: Modify a given station. Note that flags changes are not much 1473 * validated in cfg80211, in particular the auth/assoc/authorized flags 1474 * might come to the driver in invalid combinations -- make sure to check 1475 * them, also against the existing state! Also, supported_rates changes are 1476 * not checked in station mode -- drivers need to reject (or ignore) them 1477 * for anything but TDLS peers. 1478 * @get_station: get station information for the station identified by @mac 1479 * @dump_station: dump station callback -- resume dump at index @idx 1480 * 1481 * @add_mpath: add a fixed mesh path 1482 * @del_mpath: delete a given mesh path 1483 * @change_mpath: change a given mesh path 1484 * @get_mpath: get a mesh path for the given parameters 1485 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 1486 * @join_mesh: join the mesh network with the specified parameters 1487 * @leave_mesh: leave the current mesh network 1488 * 1489 * @get_mesh_config: Get the current mesh configuration 1490 * 1491 * @update_mesh_config: Update mesh parameters on a running mesh. 1492 * The mask is a bitfield which tells us which parameters to 1493 * set, and which to leave alone. 1494 * 1495 * @change_bss: Modify parameters for a given BSS. 1496 * 1497 * @set_txq_params: Set TX queue parameters 1498 * 1499 * @libertas_set_mesh_channel: Only for backward compatibility for libertas, 1500 * as it doesn't implement join_mesh and needs to set the channel to 1501 * join the mesh instead. 1502 * 1503 * @set_monitor_channel: Set the monitor mode channel for the device. If other 1504 * interfaces are active this callback should reject the configuration. 1505 * If no interfaces are active or the device is down, the channel should 1506 * be stored for when a monitor interface becomes active. 1507 * 1508 * @scan: Request to do a scan. If returning zero, the scan request is given 1509 * the driver, and will be valid until passed to cfg80211_scan_done(). 1510 * For scan results, call cfg80211_inform_bss(); you can call this outside 1511 * the scan/scan_done bracket too. 1512 * 1513 * @auth: Request to authenticate with the specified peer 1514 * @assoc: Request to (re)associate with the specified peer 1515 * @deauth: Request to deauthenticate from the specified peer 1516 * @disassoc: Request to disassociate from the specified peer 1517 * 1518 * @connect: Connect to the ESS with the specified parameters. When connected, 1519 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 1520 * If the connection fails for some reason, call cfg80211_connect_result() 1521 * with the status from the AP. 1522 * @disconnect: Disconnect from the BSS/ESS. 1523 * 1524 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 1525 * cfg80211_ibss_joined(), also call that function when changing BSSID due 1526 * to a merge. 1527 * @leave_ibss: Leave the IBSS. 1528 * 1529 * @set_wiphy_params: Notify that wiphy parameters have changed; 1530 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1531 * have changed. The actual parameter values are available in 1532 * struct wiphy. If returning an error, no value should be changed. 1533 * 1534 * @set_tx_power: set the transmit power according to the parameters, 1535 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). 1536 * @get_tx_power: store the current TX power into the dbm variable; 1537 * return 0 if successful 1538 * 1539 * @set_wds_peer: set the WDS peer for a WDS interface 1540 * 1541 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1542 * functions to adjust rfkill hw state 1543 * 1544 * @dump_survey: get site survey information. 1545 * 1546 * @remain_on_channel: Request the driver to remain awake on the specified 1547 * channel for the specified duration to complete an off-channel 1548 * operation (e.g., public action frame exchange). When the driver is 1549 * ready on the requested channel, it must indicate this with an event 1550 * notification by calling cfg80211_ready_on_channel(). 1551 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1552 * This allows the operation to be terminated prior to timeout based on 1553 * the duration value. 1554 * @mgmt_tx: Transmit a management frame. 1555 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 1556 * frame on another channel 1557 * 1558 * @testmode_cmd: run a test mode command 1559 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 1560 * used by the function, but 0 and 1 must not be touched. Additionally, 1561 * return error codes other than -ENOBUFS and -ENOENT will terminate the 1562 * dump and return to userspace with an error, so be careful. If any data 1563 * was passed in from userspace then the data/len arguments will be present 1564 * and point to the data contained in %NL80211_ATTR_TESTDATA. 1565 * 1566 * @set_bitrate_mask: set the bitrate mask configuration 1567 * 1568 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 1569 * devices running firmwares capable of generating the (re) association 1570 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 1571 * @del_pmksa: Delete a cached PMKID. 1572 * @flush_pmksa: Flush all cached PMKIDs. 1573 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 1574 * allows the driver to adjust the dynamic ps timeout value. 1575 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 1576 * @set_cqm_txe_config: Configure connection quality monitor TX error 1577 * thresholds. 1578 * @sched_scan_start: Tell the driver to start a scheduled scan. 1579 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled 1580 * scan. The driver_initiated flag specifies whether the driver 1581 * itself has informed that the scan has stopped. 1582 * 1583 * @mgmt_frame_register: Notify driver that a management frame type was 1584 * registered. Note that this callback may not sleep, and cannot run 1585 * concurrently with itself. 1586 * 1587 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 1588 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 1589 * reject TX/RX mask combinations they cannot support by returning -EINVAL 1590 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 1591 * 1592 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 1593 * 1594 * @set_ringparam: Set tx and rx ring sizes. 1595 * 1596 * @get_ringparam: Get tx and rx ring current and maximum sizes. 1597 * 1598 * @tdls_mgmt: Transmit a TDLS management frame. 1599 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). 1600 * 1601 * @probe_client: probe an associated client, must return a cookie that it 1602 * later passes to cfg80211_probe_status(). 1603 * 1604 * @set_noack_map: Set the NoAck Map for the TIDs. 1605 * 1606 * @get_et_sset_count: Ethtool API to get string-set count. 1607 * See @ethtool_ops.get_sset_count 1608 * 1609 * @get_et_stats: Ethtool API to get a set of u64 stats. 1610 * See @ethtool_ops.get_ethtool_stats 1611 * 1612 * @get_et_strings: Ethtool API to get a set of strings to describe stats 1613 * and perhaps other supported types of ethtool data-sets. 1614 * See @ethtool_ops.get_strings 1615 * 1616 * @get_channel: Get the current operating channel for the virtual interface. 1617 * For monitor interfaces, it should return %NULL unless there's a single 1618 * current monitoring channel. 1619 */ 1620 struct cfg80211_ops { 1621 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 1622 int (*resume)(struct wiphy *wiphy); 1623 void (*set_wakeup)(struct wiphy *wiphy, bool enabled); 1624 1625 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, 1626 char *name, 1627 enum nl80211_iftype type, 1628 u32 *flags, 1629 struct vif_params *params); 1630 int (*del_virtual_intf)(struct wiphy *wiphy, 1631 struct wireless_dev *wdev); 1632 int (*change_virtual_intf)(struct wiphy *wiphy, 1633 struct net_device *dev, 1634 enum nl80211_iftype type, u32 *flags, 1635 struct vif_params *params); 1636 1637 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 1638 u8 key_index, bool pairwise, const u8 *mac_addr, 1639 struct key_params *params); 1640 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 1641 u8 key_index, bool pairwise, const u8 *mac_addr, 1642 void *cookie, 1643 void (*callback)(void *cookie, struct key_params*)); 1644 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 1645 u8 key_index, bool pairwise, const u8 *mac_addr); 1646 int (*set_default_key)(struct wiphy *wiphy, 1647 struct net_device *netdev, 1648 u8 key_index, bool unicast, bool multicast); 1649 int (*set_default_mgmt_key)(struct wiphy *wiphy, 1650 struct net_device *netdev, 1651 u8 key_index); 1652 1653 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, 1654 struct cfg80211_ap_settings *settings); 1655 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, 1656 struct cfg80211_beacon_data *info); 1657 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev); 1658 1659 1660 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 1661 u8 *mac, struct station_parameters *params); 1662 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 1663 u8 *mac); 1664 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 1665 u8 *mac, struct station_parameters *params); 1666 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 1667 u8 *mac, struct station_info *sinfo); 1668 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 1669 int idx, u8 *mac, struct station_info *sinfo); 1670 1671 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 1672 u8 *dst, u8 *next_hop); 1673 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 1674 u8 *dst); 1675 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 1676 u8 *dst, u8 *next_hop); 1677 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 1678 u8 *dst, u8 *next_hop, 1679 struct mpath_info *pinfo); 1680 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 1681 int idx, u8 *dst, u8 *next_hop, 1682 struct mpath_info *pinfo); 1683 int (*get_mesh_config)(struct wiphy *wiphy, 1684 struct net_device *dev, 1685 struct mesh_config *conf); 1686 int (*update_mesh_config)(struct wiphy *wiphy, 1687 struct net_device *dev, u32 mask, 1688 const struct mesh_config *nconf); 1689 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 1690 const struct mesh_config *conf, 1691 const struct mesh_setup *setup); 1692 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 1693 1694 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 1695 struct bss_parameters *params); 1696 1697 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, 1698 struct ieee80211_txq_params *params); 1699 1700 int (*libertas_set_mesh_channel)(struct wiphy *wiphy, 1701 struct net_device *dev, 1702 struct ieee80211_channel *chan); 1703 1704 int (*set_monitor_channel)(struct wiphy *wiphy, 1705 struct ieee80211_channel *chan, 1706 enum nl80211_channel_type channel_type); 1707 1708 int (*scan)(struct wiphy *wiphy, 1709 struct cfg80211_scan_request *request); 1710 1711 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 1712 struct cfg80211_auth_request *req); 1713 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 1714 struct cfg80211_assoc_request *req); 1715 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 1716 struct cfg80211_deauth_request *req); 1717 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 1718 struct cfg80211_disassoc_request *req); 1719 1720 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 1721 struct cfg80211_connect_params *sme); 1722 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 1723 u16 reason_code); 1724 1725 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 1726 struct cfg80211_ibss_params *params); 1727 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 1728 1729 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 1730 1731 int (*set_tx_power)(struct wiphy *wiphy, 1732 enum nl80211_tx_power_setting type, int mbm); 1733 int (*get_tx_power)(struct wiphy *wiphy, int *dbm); 1734 1735 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 1736 const u8 *addr); 1737 1738 void (*rfkill_poll)(struct wiphy *wiphy); 1739 1740 #ifdef CONFIG_NL80211_TESTMODE 1741 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 1742 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 1743 struct netlink_callback *cb, 1744 void *data, int len); 1745 #endif 1746 1747 int (*set_bitrate_mask)(struct wiphy *wiphy, 1748 struct net_device *dev, 1749 const u8 *peer, 1750 const struct cfg80211_bitrate_mask *mask); 1751 1752 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 1753 int idx, struct survey_info *info); 1754 1755 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1756 struct cfg80211_pmksa *pmksa); 1757 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1758 struct cfg80211_pmksa *pmksa); 1759 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 1760 1761 int (*remain_on_channel)(struct wiphy *wiphy, 1762 struct wireless_dev *wdev, 1763 struct ieee80211_channel *chan, 1764 enum nl80211_channel_type channel_type, 1765 unsigned int duration, 1766 u64 *cookie); 1767 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 1768 struct wireless_dev *wdev, 1769 u64 cookie); 1770 1771 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, 1772 struct ieee80211_channel *chan, bool offchan, 1773 enum nl80211_channel_type channel_type, 1774 bool channel_type_valid, unsigned int wait, 1775 const u8 *buf, size_t len, bool no_cck, 1776 bool dont_wait_for_ack, u64 *cookie); 1777 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 1778 struct wireless_dev *wdev, 1779 u64 cookie); 1780 1781 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 1782 bool enabled, int timeout); 1783 1784 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 1785 struct net_device *dev, 1786 s32 rssi_thold, u32 rssi_hyst); 1787 1788 int (*set_cqm_txe_config)(struct wiphy *wiphy, 1789 struct net_device *dev, 1790 u32 rate, u32 pkts, u32 intvl); 1791 1792 void (*mgmt_frame_register)(struct wiphy *wiphy, 1793 struct wireless_dev *wdev, 1794 u16 frame_type, bool reg); 1795 1796 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 1797 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 1798 1799 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); 1800 void (*get_ringparam)(struct wiphy *wiphy, 1801 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); 1802 1803 int (*sched_scan_start)(struct wiphy *wiphy, 1804 struct net_device *dev, 1805 struct cfg80211_sched_scan_request *request); 1806 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 1807 1808 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 1809 struct cfg80211_gtk_rekey_data *data); 1810 1811 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, 1812 u8 *peer, u8 action_code, u8 dialog_token, 1813 u16 status_code, const u8 *buf, size_t len); 1814 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, 1815 u8 *peer, enum nl80211_tdls_operation oper); 1816 1817 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, 1818 const u8 *peer, u64 *cookie); 1819 1820 int (*set_noack_map)(struct wiphy *wiphy, 1821 struct net_device *dev, 1822 u16 noack_map); 1823 1824 int (*get_et_sset_count)(struct wiphy *wiphy, 1825 struct net_device *dev, int sset); 1826 void (*get_et_stats)(struct wiphy *wiphy, struct net_device *dev, 1827 struct ethtool_stats *stats, u64 *data); 1828 void (*get_et_strings)(struct wiphy *wiphy, struct net_device *dev, 1829 u32 sset, u8 *data); 1830 1831 struct ieee80211_channel * 1832 (*get_channel)(struct wiphy *wiphy, 1833 struct wireless_dev *wdev, 1834 enum nl80211_channel_type *type); 1835 }; 1836 1837 /* 1838 * wireless hardware and networking interfaces structures 1839 * and registration/helper functions 1840 */ 1841 1842 /** 1843 * enum wiphy_flags - wiphy capability flags 1844 * 1845 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 1846 * has its own custom regulatory domain and cannot identify the 1847 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 1848 * we will disregard the first regulatory hint (when the 1849 * initiator is %REGDOM_SET_BY_CORE). 1850 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 1851 * ignore regulatory domain settings until it gets its own regulatory 1852 * domain via its regulatory_hint() unless the regulatory hint is 1853 * from a country IE. After its gets its own regulatory domain it will 1854 * only allow further regulatory domain settings to further enhance 1855 * compliance. For example if channel 13 and 14 are disabled by this 1856 * regulatory domain no user regulatory domain can enable these channels 1857 * at a later time. This can be used for devices which do not have 1858 * calibration information guaranteed for frequencies or settings 1859 * outside of its regulatory domain. If used in combination with 1860 * WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings 1861 * will be followed. 1862 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 1863 * that passive scan flags and beaconing flags may not be lifted by 1864 * cfg80211 due to regulatory beacon hints. For more information on beacon 1865 * hints read the documenation for regulatory_hint_found_beacon() 1866 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 1867 * wiphy at all 1868 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 1869 * by default -- this flag will be set depending on the kernel's default 1870 * on wiphy_new(), but can be changed by the driver if it has a good 1871 * reason to override the default 1872 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 1873 * on a VLAN interface) 1874 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 1875 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 1876 * control port protocol ethertype. The device also honours the 1877 * control_port_no_encrypt flag. 1878 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 1879 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 1880 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 1881 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. 1882 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the 1883 * firmware. 1884 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. 1885 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. 1886 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) 1887 * link setup/discovery operations internally. Setup, discovery and 1888 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT 1889 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be 1890 * used for asking the driver/firmware to perform a TDLS operation. 1891 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME 1892 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes 1893 * when there are virtual interfaces in AP mode by calling 1894 * cfg80211_report_obss_beacon(). 1895 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device 1896 * responds to probe-requests in hardware. 1897 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. 1898 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. 1899 */ 1900 enum wiphy_flags { 1901 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 1902 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 1903 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 1904 WIPHY_FLAG_NETNS_OK = BIT(3), 1905 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 1906 WIPHY_FLAG_4ADDR_AP = BIT(5), 1907 WIPHY_FLAG_4ADDR_STATION = BIT(6), 1908 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 1909 WIPHY_FLAG_IBSS_RSN = BIT(8), 1910 WIPHY_FLAG_MESH_AUTH = BIT(10), 1911 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 1912 /* use hole at 12 */ 1913 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), 1914 WIPHY_FLAG_AP_UAPSD = BIT(14), 1915 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), 1916 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), 1917 WIPHY_FLAG_HAVE_AP_SME = BIT(17), 1918 WIPHY_FLAG_REPORTS_OBSS = BIT(18), 1919 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), 1920 WIPHY_FLAG_OFFCHAN_TX = BIT(20), 1921 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), 1922 }; 1923 1924 /** 1925 * struct ieee80211_iface_limit - limit on certain interface types 1926 * @max: maximum number of interfaces of these types 1927 * @types: interface types (bits) 1928 */ 1929 struct ieee80211_iface_limit { 1930 u16 max; 1931 u16 types; 1932 }; 1933 1934 /** 1935 * struct ieee80211_iface_combination - possible interface combination 1936 * @limits: limits for the given interface types 1937 * @n_limits: number of limitations 1938 * @num_different_channels: can use up to this many different channels 1939 * @max_interfaces: maximum number of interfaces in total allowed in this 1940 * group 1941 * @beacon_int_infra_match: In this combination, the beacon intervals 1942 * between infrastructure and AP types must match. This is required 1943 * only in special cases. 1944 * 1945 * These examples can be expressed as follows: 1946 * 1947 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 1948 * 1949 * struct ieee80211_iface_limit limits1[] = { 1950 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1951 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 1952 * }; 1953 * struct ieee80211_iface_combination combination1 = { 1954 * .limits = limits1, 1955 * .n_limits = ARRAY_SIZE(limits1), 1956 * .max_interfaces = 2, 1957 * .beacon_int_infra_match = true, 1958 * }; 1959 * 1960 * 1961 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 1962 * 1963 * struct ieee80211_iface_limit limits2[] = { 1964 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 1965 * BIT(NL80211_IFTYPE_P2P_GO), }, 1966 * }; 1967 * struct ieee80211_iface_combination combination2 = { 1968 * .limits = limits2, 1969 * .n_limits = ARRAY_SIZE(limits2), 1970 * .max_interfaces = 8, 1971 * .num_different_channels = 1, 1972 * }; 1973 * 1974 * 1975 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 1976 * This allows for an infrastructure connection and three P2P connections. 1977 * 1978 * struct ieee80211_iface_limit limits3[] = { 1979 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1980 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 1981 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 1982 * }; 1983 * struct ieee80211_iface_combination combination3 = { 1984 * .limits = limits3, 1985 * .n_limits = ARRAY_SIZE(limits3), 1986 * .max_interfaces = 4, 1987 * .num_different_channels = 2, 1988 * }; 1989 */ 1990 struct ieee80211_iface_combination { 1991 const struct ieee80211_iface_limit *limits; 1992 u32 num_different_channels; 1993 u16 max_interfaces; 1994 u8 n_limits; 1995 bool beacon_int_infra_match; 1996 }; 1997 1998 struct mac_address { 1999 u8 addr[ETH_ALEN]; 2000 }; 2001 2002 struct ieee80211_txrx_stypes { 2003 u16 tx, rx; 2004 }; 2005 2006 /** 2007 * enum wiphy_wowlan_support_flags - WoWLAN support flags 2008 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 2009 * trigger that keeps the device operating as-is and 2010 * wakes up the host on any activity, for example a 2011 * received packet that passed filtering; note that the 2012 * packet should be preserved in that case 2013 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 2014 * (see nl80211.h) 2015 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 2016 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 2017 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 2018 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 2019 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 2020 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 2021 */ 2022 enum wiphy_wowlan_support_flags { 2023 WIPHY_WOWLAN_ANY = BIT(0), 2024 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 2025 WIPHY_WOWLAN_DISCONNECT = BIT(2), 2026 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 2027 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 2028 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 2029 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 2030 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 2031 }; 2032 2033 /** 2034 * struct wiphy_wowlan_support - WoWLAN support data 2035 * @flags: see &enum wiphy_wowlan_support_flags 2036 * @n_patterns: number of supported wakeup patterns 2037 * (see nl80211.h for the pattern definition) 2038 * @pattern_max_len: maximum length of each pattern 2039 * @pattern_min_len: minimum length of each pattern 2040 */ 2041 struct wiphy_wowlan_support { 2042 u32 flags; 2043 int n_patterns; 2044 int pattern_max_len; 2045 int pattern_min_len; 2046 }; 2047 2048 /** 2049 * struct wiphy - wireless hardware description 2050 * @reg_notifier: the driver's regulatory notification callback, 2051 * note that if your driver uses wiphy_apply_custom_regulatory() 2052 * the reg_notifier's request can be passed as NULL 2053 * @regd: the driver's regulatory domain, if one was requested via 2054 * the regulatory_hint() API. This can be used by the driver 2055 * on the reg_notifier() if it chooses to ignore future 2056 * regulatory domain changes caused by other drivers. 2057 * @signal_type: signal type reported in &struct cfg80211_bss. 2058 * @cipher_suites: supported cipher suites 2059 * @n_cipher_suites: number of supported cipher suites 2060 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 2061 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 2062 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 2063 * -1 = fragmentation disabled, only odd values >= 256 used 2064 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 2065 * @_net: the network namespace this wiphy currently lives in 2066 * @perm_addr: permanent MAC address of this device 2067 * @addr_mask: If the device supports multiple MAC addresses by masking, 2068 * set this to a mask with variable bits set to 1, e.g. if the last 2069 * four bits are variable then set it to 00:...:00:0f. The actual 2070 * variable bits shall be determined by the interfaces added, with 2071 * interfaces not matching the mask being rejected to be brought up. 2072 * @n_addresses: number of addresses in @addresses. 2073 * @addresses: If the device has more than one address, set this pointer 2074 * to a list of addresses (6 bytes each). The first one will be used 2075 * by default for perm_addr. In this case, the mask should be set to 2076 * all-zeroes. In this case it is assumed that the device can handle 2077 * the same number of arbitrary MAC addresses. 2078 * @registered: protects ->resume and ->suspend sysfs callbacks against 2079 * unregister hardware 2080 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 2081 * automatically on wiphy renames 2082 * @dev: (virtual) struct device for this wiphy 2083 * @registered: helps synchronize suspend/resume with wiphy unregister 2084 * @wext: wireless extension handlers 2085 * @priv: driver private data (sized according to wiphy_new() parameter) 2086 * @interface_modes: bitmask of interfaces types valid for this wiphy, 2087 * must be set by driver 2088 * @iface_combinations: Valid interface combinations array, should not 2089 * list single interface types. 2090 * @n_iface_combinations: number of entries in @iface_combinations array. 2091 * @software_iftypes: bitmask of software interface types, these are not 2092 * subject to any restrictions since they are purely managed in SW. 2093 * @flags: wiphy flags, see &enum wiphy_flags 2094 * @features: features advertised to nl80211, see &enum nl80211_feature_flags. 2095 * @bss_priv_size: each BSS struct has private data allocated with it, 2096 * this variable determines its size 2097 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 2098 * any given scan 2099 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 2100 * for in any given scheduled scan 2101 * @max_match_sets: maximum number of match sets the device can handle 2102 * when performing a scheduled scan, 0 if filtering is not 2103 * supported. 2104 * @max_scan_ie_len: maximum length of user-controlled IEs device can 2105 * add to probe request frames transmitted during a scan, must not 2106 * include fixed IEs like supported rates 2107 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 2108 * scans 2109 * @coverage_class: current coverage class 2110 * @fw_version: firmware version for ethtool reporting 2111 * @hw_version: hardware version for ethtool reporting 2112 * @max_num_pmkids: maximum number of PMKIDs supported by device 2113 * @privid: a pointer that drivers can use to identify if an arbitrary 2114 * wiphy is theirs, e.g. in global notifiers 2115 * @bands: information about bands/channels supported by this device 2116 * 2117 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 2118 * transmitted through nl80211, points to an array indexed by interface 2119 * type 2120 * 2121 * @available_antennas_tx: bitmap of antennas which are available to be 2122 * configured as TX antennas. Antenna configuration commands will be 2123 * rejected unless this or @available_antennas_rx is set. 2124 * 2125 * @available_antennas_rx: bitmap of antennas which are available to be 2126 * configured as RX antennas. Antenna configuration commands will be 2127 * rejected unless this or @available_antennas_tx is set. 2128 * 2129 * @probe_resp_offload: 2130 * Bitmap of supported protocols for probe response offloading. 2131 * See &enum nl80211_probe_resp_offload_support_attr. Only valid 2132 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2133 * 2134 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 2135 * may request, if implemented. 2136 * 2137 * @wowlan: WoWLAN support information 2138 * 2139 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. 2140 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. 2141 * If null, then none can be over-ridden. 2142 */ 2143 struct wiphy { 2144 /* assign these fields before you register the wiphy */ 2145 2146 /* permanent MAC address(es) */ 2147 u8 perm_addr[ETH_ALEN]; 2148 u8 addr_mask[ETH_ALEN]; 2149 2150 struct mac_address *addresses; 2151 2152 const struct ieee80211_txrx_stypes *mgmt_stypes; 2153 2154 const struct ieee80211_iface_combination *iface_combinations; 2155 int n_iface_combinations; 2156 u16 software_iftypes; 2157 2158 u16 n_addresses; 2159 2160 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 2161 u16 interface_modes; 2162 2163 u32 flags, features; 2164 2165 u32 ap_sme_capa; 2166 2167 enum cfg80211_signal_type signal_type; 2168 2169 int bss_priv_size; 2170 u8 max_scan_ssids; 2171 u8 max_sched_scan_ssids; 2172 u8 max_match_sets; 2173 u16 max_scan_ie_len; 2174 u16 max_sched_scan_ie_len; 2175 2176 int n_cipher_suites; 2177 const u32 *cipher_suites; 2178 2179 u8 retry_short; 2180 u8 retry_long; 2181 u32 frag_threshold; 2182 u32 rts_threshold; 2183 u8 coverage_class; 2184 2185 char fw_version[ETHTOOL_BUSINFO_LEN]; 2186 u32 hw_version; 2187 2188 #ifdef CONFIG_PM 2189 struct wiphy_wowlan_support wowlan; 2190 #endif 2191 2192 u16 max_remain_on_channel_duration; 2193 2194 u8 max_num_pmkids; 2195 2196 u32 available_antennas_tx; 2197 u32 available_antennas_rx; 2198 2199 /* 2200 * Bitmap of supported protocols for probe response offloading 2201 * see &enum nl80211_probe_resp_offload_support_attr. Only valid 2202 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 2203 */ 2204 u32 probe_resp_offload; 2205 2206 /* If multiple wiphys are registered and you're handed e.g. 2207 * a regular netdev with assigned ieee80211_ptr, you won't 2208 * know whether it points to a wiphy your driver has registered 2209 * or not. Assign this to something global to your driver to 2210 * help determine whether you own this wiphy or not. */ 2211 const void *privid; 2212 2213 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 2214 2215 /* Lets us get back the wiphy on the callback */ 2216 int (*reg_notifier)(struct wiphy *wiphy, 2217 struct regulatory_request *request); 2218 2219 /* fields below are read-only, assigned by cfg80211 */ 2220 2221 const struct ieee80211_regdomain *regd; 2222 2223 /* the item in /sys/class/ieee80211/ points to this, 2224 * you need use set_wiphy_dev() (see below) */ 2225 struct device dev; 2226 2227 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ 2228 bool registered; 2229 2230 /* dir in debugfs: ieee80211/<wiphyname> */ 2231 struct dentry *debugfsdir; 2232 2233 const struct ieee80211_ht_cap *ht_capa_mod_mask; 2234 2235 #ifdef CONFIG_NET_NS 2236 /* the network namespace this phy lives in currently */ 2237 struct net *_net; 2238 #endif 2239 2240 #ifdef CONFIG_CFG80211_WEXT 2241 const struct iw_handler_def *wext; 2242 #endif 2243 2244 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); 2245 }; 2246 2247 static inline struct net *wiphy_net(struct wiphy *wiphy) 2248 { 2249 return read_pnet(&wiphy->_net); 2250 } 2251 2252 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 2253 { 2254 write_pnet(&wiphy->_net, net); 2255 } 2256 2257 /** 2258 * wiphy_priv - return priv from wiphy 2259 * 2260 * @wiphy: the wiphy whose priv pointer to return 2261 */ 2262 static inline void *wiphy_priv(struct wiphy *wiphy) 2263 { 2264 BUG_ON(!wiphy); 2265 return &wiphy->priv; 2266 } 2267 2268 /** 2269 * priv_to_wiphy - return the wiphy containing the priv 2270 * 2271 * @priv: a pointer previously returned by wiphy_priv 2272 */ 2273 static inline struct wiphy *priv_to_wiphy(void *priv) 2274 { 2275 BUG_ON(!priv); 2276 return container_of(priv, struct wiphy, priv); 2277 } 2278 2279 /** 2280 * set_wiphy_dev - set device pointer for wiphy 2281 * 2282 * @wiphy: The wiphy whose device to bind 2283 * @dev: The device to parent it to 2284 */ 2285 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 2286 { 2287 wiphy->dev.parent = dev; 2288 } 2289 2290 /** 2291 * wiphy_dev - get wiphy dev pointer 2292 * 2293 * @wiphy: The wiphy whose device struct to look up 2294 */ 2295 static inline struct device *wiphy_dev(struct wiphy *wiphy) 2296 { 2297 return wiphy->dev.parent; 2298 } 2299 2300 /** 2301 * wiphy_name - get wiphy name 2302 * 2303 * @wiphy: The wiphy whose name to return 2304 */ 2305 static inline const char *wiphy_name(const struct wiphy *wiphy) 2306 { 2307 return dev_name(&wiphy->dev); 2308 } 2309 2310 /** 2311 * wiphy_new - create a new wiphy for use with cfg80211 2312 * 2313 * @ops: The configuration operations for this device 2314 * @sizeof_priv: The size of the private area to allocate 2315 * 2316 * Create a new wiphy and associate the given operations with it. 2317 * @sizeof_priv bytes are allocated for private use. 2318 * 2319 * The returned pointer must be assigned to each netdev's 2320 * ieee80211_ptr for proper operation. 2321 */ 2322 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 2323 2324 /** 2325 * wiphy_register - register a wiphy with cfg80211 2326 * 2327 * @wiphy: The wiphy to register. 2328 * 2329 * Returns a non-negative wiphy index or a negative error code. 2330 */ 2331 extern int wiphy_register(struct wiphy *wiphy); 2332 2333 /** 2334 * wiphy_unregister - deregister a wiphy from cfg80211 2335 * 2336 * @wiphy: The wiphy to unregister. 2337 * 2338 * After this call, no more requests can be made with this priv 2339 * pointer, but the call may sleep to wait for an outstanding 2340 * request that is being handled. 2341 */ 2342 extern void wiphy_unregister(struct wiphy *wiphy); 2343 2344 /** 2345 * wiphy_free - free wiphy 2346 * 2347 * @wiphy: The wiphy to free 2348 */ 2349 extern void wiphy_free(struct wiphy *wiphy); 2350 2351 /* internal structs */ 2352 struct cfg80211_conn; 2353 struct cfg80211_internal_bss; 2354 struct cfg80211_cached_keys; 2355 2356 /** 2357 * struct wireless_dev - wireless device state 2358 * 2359 * For netdevs, this structure must be allocated by the driver 2360 * that uses the ieee80211_ptr field in struct net_device (this 2361 * is intentional so it can be allocated along with the netdev.) 2362 * It need not be registered then as netdev registration will 2363 * be intercepted by cfg80211 to see the new wireless device. 2364 * 2365 * For non-netdev uses, it must also be allocated by the driver 2366 * in response to the cfg80211 callbacks that require it, as 2367 * there's no netdev registration in that case it may not be 2368 * allocated outside of callback operations that return it. 2369 * 2370 * @wiphy: pointer to hardware description 2371 * @iftype: interface type 2372 * @list: (private) Used to collect the interfaces 2373 * @netdev: (private) Used to reference back to the netdev, may be %NULL 2374 * @identifier: (private) Identifier used in nl80211 to identify this 2375 * wireless device if it has no netdev 2376 * @current_bss: (private) Used by the internal configuration code 2377 * @channel: (private) Used by the internal configuration code to track 2378 * the user-set AP, monitor and WDS channel 2379 * @preset_chan: (private) Used by the internal configuration code to 2380 * track the channel to be used for AP later 2381 * @preset_chantype: (private) the corresponding channel type 2382 * @bssid: (private) Used by the internal configuration code 2383 * @ssid: (private) Used by the internal configuration code 2384 * @ssid_len: (private) Used by the internal configuration code 2385 * @mesh_id_len: (private) Used by the internal configuration code 2386 * @mesh_id_up_len: (private) Used by the internal configuration code 2387 * @wext: (private) Used by the internal wireless extensions compat code 2388 * @use_4addr: indicates 4addr mode is used on this interface, must be 2389 * set by driver (if supported) on add_interface BEFORE registering the 2390 * netdev and may otherwise be used by driver read-only, will be update 2391 * by cfg80211 on change_interface 2392 * @mgmt_registrations: list of registrations for management frames 2393 * @mgmt_registrations_lock: lock for the list 2394 * @mtx: mutex used to lock data in this struct 2395 * @cleanup_work: work struct used for cleanup that can't be done directly 2396 * @beacon_interval: beacon interval used on this device for transmitting 2397 * beacons, 0 when not valid 2398 */ 2399 struct wireless_dev { 2400 struct wiphy *wiphy; 2401 enum nl80211_iftype iftype; 2402 2403 /* the remainder of this struct should be private to cfg80211 */ 2404 struct list_head list; 2405 struct net_device *netdev; 2406 2407 u32 identifier; 2408 2409 struct list_head mgmt_registrations; 2410 spinlock_t mgmt_registrations_lock; 2411 2412 struct mutex mtx; 2413 2414 struct work_struct cleanup_work; 2415 2416 bool use_4addr; 2417 2418 /* currently used for IBSS and SME - might be rearranged later */ 2419 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2420 u8 ssid_len, mesh_id_len, mesh_id_up_len; 2421 enum { 2422 CFG80211_SME_IDLE, 2423 CFG80211_SME_CONNECTING, 2424 CFG80211_SME_CONNECTED, 2425 } sme_state; 2426 struct cfg80211_conn *conn; 2427 struct cfg80211_cached_keys *connect_keys; 2428 2429 struct list_head event_list; 2430 spinlock_t event_lock; 2431 2432 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 2433 struct ieee80211_channel *preset_chan; 2434 enum nl80211_channel_type preset_chantype; 2435 2436 /* for AP and mesh channel tracking */ 2437 struct ieee80211_channel *channel; 2438 2439 bool ibss_fixed; 2440 2441 bool ps; 2442 int ps_timeout; 2443 2444 int beacon_interval; 2445 2446 u32 ap_unexpected_nlpid; 2447 2448 #ifdef CONFIG_CFG80211_WEXT 2449 /* wext data */ 2450 struct { 2451 struct cfg80211_ibss_params ibss; 2452 struct cfg80211_connect_params connect; 2453 struct cfg80211_cached_keys *keys; 2454 u8 *ie; 2455 size_t ie_len; 2456 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 2457 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2458 s8 default_key, default_mgmt_key; 2459 bool prev_bssid_valid; 2460 } wext; 2461 #endif 2462 }; 2463 2464 /** 2465 * wdev_priv - return wiphy priv from wireless_dev 2466 * 2467 * @wdev: The wireless device whose wiphy's priv pointer to return 2468 */ 2469 static inline void *wdev_priv(struct wireless_dev *wdev) 2470 { 2471 BUG_ON(!wdev); 2472 return wiphy_priv(wdev->wiphy); 2473 } 2474 2475 /** 2476 * DOC: Utility functions 2477 * 2478 * cfg80211 offers a number of utility functions that can be useful. 2479 */ 2480 2481 /** 2482 * ieee80211_channel_to_frequency - convert channel number to frequency 2483 * @chan: channel number 2484 * @band: band, necessary due to channel number overlap 2485 */ 2486 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 2487 2488 /** 2489 * ieee80211_frequency_to_channel - convert frequency to channel number 2490 * @freq: center frequency 2491 */ 2492 extern int ieee80211_frequency_to_channel(int freq); 2493 2494 /* 2495 * Name indirection necessary because the ieee80211 code also has 2496 * a function named "ieee80211_get_channel", so if you include 2497 * cfg80211's header file you get cfg80211's version, if you try 2498 * to include both header files you'll (rightfully!) get a symbol 2499 * clash. 2500 */ 2501 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 2502 int freq); 2503 /** 2504 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 2505 * @wiphy: the struct wiphy to get the channel for 2506 * @freq: the center frequency of the channel 2507 */ 2508 static inline struct ieee80211_channel * 2509 ieee80211_get_channel(struct wiphy *wiphy, int freq) 2510 { 2511 return __ieee80211_get_channel(wiphy, freq); 2512 } 2513 2514 /** 2515 * ieee80211_get_response_rate - get basic rate for a given rate 2516 * 2517 * @sband: the band to look for rates in 2518 * @basic_rates: bitmap of basic rates 2519 * @bitrate: the bitrate for which to find the basic rate 2520 * 2521 * This function returns the basic rate corresponding to a given 2522 * bitrate, that is the next lower bitrate contained in the basic 2523 * rate map, which is, for this function, given as a bitmap of 2524 * indices of rates in the band's bitrate table. 2525 */ 2526 struct ieee80211_rate * 2527 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 2528 u32 basic_rates, int bitrate); 2529 2530 /* 2531 * Radiotap parsing functions -- for controlled injection support 2532 * 2533 * Implemented in net/wireless/radiotap.c 2534 * Documentation in Documentation/networking/radiotap-headers.txt 2535 */ 2536 2537 struct radiotap_align_size { 2538 uint8_t align:4, size:4; 2539 }; 2540 2541 struct ieee80211_radiotap_namespace { 2542 const struct radiotap_align_size *align_size; 2543 int n_bits; 2544 uint32_t oui; 2545 uint8_t subns; 2546 }; 2547 2548 struct ieee80211_radiotap_vendor_namespaces { 2549 const struct ieee80211_radiotap_namespace *ns; 2550 int n_ns; 2551 }; 2552 2553 /** 2554 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 2555 * @this_arg_index: index of current arg, valid after each successful call 2556 * to ieee80211_radiotap_iterator_next() 2557 * @this_arg: pointer to current radiotap arg; it is valid after each 2558 * call to ieee80211_radiotap_iterator_next() but also after 2559 * ieee80211_radiotap_iterator_init() where it will point to 2560 * the beginning of the actual data portion 2561 * @this_arg_size: length of the current arg, for convenience 2562 * @current_namespace: pointer to the current namespace definition 2563 * (or internally %NULL if the current namespace is unknown) 2564 * @is_radiotap_ns: indicates whether the current namespace is the default 2565 * radiotap namespace or not 2566 * 2567 * @_rtheader: pointer to the radiotap header we are walking through 2568 * @_max_length: length of radiotap header in cpu byte ordering 2569 * @_arg_index: next argument index 2570 * @_arg: next argument pointer 2571 * @_next_bitmap: internal pointer to next present u32 2572 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 2573 * @_vns: vendor namespace definitions 2574 * @_next_ns_data: beginning of the next namespace's data 2575 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 2576 * next bitmap word 2577 * 2578 * Describes the radiotap parser state. Fields prefixed with an underscore 2579 * must not be used by users of the parser, only by the parser internally. 2580 */ 2581 2582 struct ieee80211_radiotap_iterator { 2583 struct ieee80211_radiotap_header *_rtheader; 2584 const struct ieee80211_radiotap_vendor_namespaces *_vns; 2585 const struct ieee80211_radiotap_namespace *current_namespace; 2586 2587 unsigned char *_arg, *_next_ns_data; 2588 __le32 *_next_bitmap; 2589 2590 unsigned char *this_arg; 2591 int this_arg_index; 2592 int this_arg_size; 2593 2594 int is_radiotap_ns; 2595 2596 int _max_length; 2597 int _arg_index; 2598 uint32_t _bitmap_shifter; 2599 int _reset_on_ext; 2600 }; 2601 2602 extern int ieee80211_radiotap_iterator_init( 2603 struct ieee80211_radiotap_iterator *iterator, 2604 struct ieee80211_radiotap_header *radiotap_header, 2605 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 2606 2607 extern int ieee80211_radiotap_iterator_next( 2608 struct ieee80211_radiotap_iterator *iterator); 2609 2610 2611 extern const unsigned char rfc1042_header[6]; 2612 extern const unsigned char bridge_tunnel_header[6]; 2613 2614 /** 2615 * ieee80211_get_hdrlen_from_skb - get header length from data 2616 * 2617 * Given an skb with a raw 802.11 header at the data pointer this function 2618 * returns the 802.11 header length in bytes (not including encryption 2619 * headers). If the data in the sk_buff is too short to contain a valid 802.11 2620 * header the function returns 0. 2621 * 2622 * @skb: the frame 2623 */ 2624 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 2625 2626 /** 2627 * ieee80211_hdrlen - get header length in bytes from frame control 2628 * @fc: frame control field in little-endian format 2629 */ 2630 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 2631 2632 /** 2633 * DOC: Data path helpers 2634 * 2635 * In addition to generic utilities, cfg80211 also offers 2636 * functions that help implement the data path for devices 2637 * that do not do the 802.11/802.3 conversion on the device. 2638 */ 2639 2640 /** 2641 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 2642 * @skb: the 802.11 data frame 2643 * @addr: the device MAC address 2644 * @iftype: the virtual interface type 2645 */ 2646 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 2647 enum nl80211_iftype iftype); 2648 2649 /** 2650 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 2651 * @skb: the 802.3 frame 2652 * @addr: the device MAC address 2653 * @iftype: the virtual interface type 2654 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 2655 * @qos: build 802.11 QoS data frame 2656 */ 2657 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 2658 enum nl80211_iftype iftype, u8 *bssid, bool qos); 2659 2660 /** 2661 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 2662 * 2663 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 2664 * 802.3 frames. The @list will be empty if the decode fails. The 2665 * @skb is consumed after the function returns. 2666 * 2667 * @skb: The input IEEE 802.11n A-MSDU frame. 2668 * @list: The output list of 802.3 frames. It must be allocated and 2669 * initialized by by the caller. 2670 * @addr: The device MAC address. 2671 * @iftype: The device interface type. 2672 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 2673 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 2674 */ 2675 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 2676 const u8 *addr, enum nl80211_iftype iftype, 2677 const unsigned int extra_headroom, 2678 bool has_80211_header); 2679 2680 /** 2681 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 2682 * @skb: the data frame 2683 */ 2684 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 2685 2686 /** 2687 * cfg80211_find_ie - find information element in data 2688 * 2689 * @eid: element ID 2690 * @ies: data consisting of IEs 2691 * @len: length of data 2692 * 2693 * This function will return %NULL if the element ID could 2694 * not be found or if the element is invalid (claims to be 2695 * longer than the given data), or a pointer to the first byte 2696 * of the requested element, that is the byte containing the 2697 * element ID. There are no checks on the element length 2698 * other than having to fit into the given data. 2699 */ 2700 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 2701 2702 /** 2703 * cfg80211_find_vendor_ie - find vendor specific information element in data 2704 * 2705 * @oui: vendor OUI 2706 * @oui_type: vendor-specific OUI type 2707 * @ies: data consisting of IEs 2708 * @len: length of data 2709 * 2710 * This function will return %NULL if the vendor specific element ID 2711 * could not be found or if the element is invalid (claims to be 2712 * longer than the given data), or a pointer to the first byte 2713 * of the requested element, that is the byte containing the 2714 * element ID. There are no checks on the element length 2715 * other than having to fit into the given data. 2716 */ 2717 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, 2718 const u8 *ies, int len); 2719 2720 /** 2721 * DOC: Regulatory enforcement infrastructure 2722 * 2723 * TODO 2724 */ 2725 2726 /** 2727 * regulatory_hint - driver hint to the wireless core a regulatory domain 2728 * @wiphy: the wireless device giving the hint (used only for reporting 2729 * conflicts) 2730 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 2731 * should be in. If @rd is set this should be NULL. Note that if you 2732 * set this to NULL you should still set rd->alpha2 to some accepted 2733 * alpha2. 2734 * 2735 * Wireless drivers can use this function to hint to the wireless core 2736 * what it believes should be the current regulatory domain by 2737 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 2738 * domain should be in or by providing a completely build regulatory domain. 2739 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 2740 * for a regulatory domain structure for the respective country. 2741 * 2742 * The wiphy must have been registered to cfg80211 prior to this call. 2743 * For cfg80211 drivers this means you must first use wiphy_register(), 2744 * for mac80211 drivers you must first use ieee80211_register_hw(). 2745 * 2746 * Drivers should check the return value, its possible you can get 2747 * an -ENOMEM. 2748 */ 2749 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 2750 2751 /** 2752 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 2753 * @wiphy: the wireless device we want to process the regulatory domain on 2754 * @regd: the custom regulatory domain to use for this wiphy 2755 * 2756 * Drivers can sometimes have custom regulatory domains which do not apply 2757 * to a specific country. Drivers can use this to apply such custom regulatory 2758 * domains. This routine must be called prior to wiphy registration. The 2759 * custom regulatory domain will be trusted completely and as such previous 2760 * default channel settings will be disregarded. If no rule is found for a 2761 * channel on the regulatory domain the channel will be disabled. 2762 */ 2763 extern void wiphy_apply_custom_regulatory( 2764 struct wiphy *wiphy, 2765 const struct ieee80211_regdomain *regd); 2766 2767 /** 2768 * freq_reg_info - get regulatory information for the given frequency 2769 * @wiphy: the wiphy for which we want to process this rule for 2770 * @center_freq: Frequency in KHz for which we want regulatory information for 2771 * @desired_bw_khz: the desired max bandwidth you want to use per 2772 * channel. Note that this is still 20 MHz if you want to use HT40 2773 * as HT40 makes use of two channels for its 40 MHz width bandwidth. 2774 * If set to 0 we'll assume you want the standard 20 MHz. 2775 * @reg_rule: the regulatory rule which we have for this frequency 2776 * 2777 * Use this function to get the regulatory rule for a specific frequency on 2778 * a given wireless device. If the device has a specific regulatory domain 2779 * it wants to follow we respect that unless a country IE has been received 2780 * and processed already. 2781 * 2782 * Returns 0 if it was able to find a valid regulatory rule which does 2783 * apply to the given center_freq otherwise it returns non-zero. It will 2784 * also return -ERANGE if we determine the given center_freq does not even have 2785 * a regulatory rule for a frequency range in the center_freq's band. See 2786 * freq_in_rule_band() for our current definition of a band -- this is purely 2787 * subjective and right now its 802.11 specific. 2788 */ 2789 extern int freq_reg_info(struct wiphy *wiphy, 2790 u32 center_freq, 2791 u32 desired_bw_khz, 2792 const struct ieee80211_reg_rule **reg_rule); 2793 2794 /* 2795 * callbacks for asynchronous cfg80211 methods, notification 2796 * functions and BSS handling helpers 2797 */ 2798 2799 /** 2800 * cfg80211_scan_done - notify that scan finished 2801 * 2802 * @request: the corresponding scan request 2803 * @aborted: set to true if the scan was aborted for any reason, 2804 * userspace will be notified of that 2805 */ 2806 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 2807 2808 /** 2809 * cfg80211_sched_scan_results - notify that new scan results are available 2810 * 2811 * @wiphy: the wiphy which got scheduled scan results 2812 */ 2813 void cfg80211_sched_scan_results(struct wiphy *wiphy); 2814 2815 /** 2816 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 2817 * 2818 * @wiphy: the wiphy on which the scheduled scan stopped 2819 * 2820 * The driver can call this function to inform cfg80211 that the 2821 * scheduled scan had to be stopped, for whatever reason. The driver 2822 * is then called back via the sched_scan_stop operation when done. 2823 */ 2824 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 2825 2826 /** 2827 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 2828 * 2829 * @wiphy: the wiphy reporting the BSS 2830 * @channel: The channel the frame was received on 2831 * @mgmt: the management frame (probe response or beacon) 2832 * @len: length of the management frame 2833 * @signal: the signal strength, type depends on the wiphy's signal_type 2834 * @gfp: context flags 2835 * 2836 * This informs cfg80211 that BSS information was found and 2837 * the BSS should be updated/added. 2838 * 2839 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()! 2840 */ 2841 struct cfg80211_bss * __must_check 2842 cfg80211_inform_bss_frame(struct wiphy *wiphy, 2843 struct ieee80211_channel *channel, 2844 struct ieee80211_mgmt *mgmt, size_t len, 2845 s32 signal, gfp_t gfp); 2846 2847 /** 2848 * cfg80211_inform_bss - inform cfg80211 of a new BSS 2849 * 2850 * @wiphy: the wiphy reporting the BSS 2851 * @channel: The channel the frame was received on 2852 * @bssid: the BSSID of the BSS 2853 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) 2854 * @capability: the capability field sent by the peer 2855 * @beacon_interval: the beacon interval announced by the peer 2856 * @ie: additional IEs sent by the peer 2857 * @ielen: length of the additional IEs 2858 * @signal: the signal strength, type depends on the wiphy's signal_type 2859 * @gfp: context flags 2860 * 2861 * This informs cfg80211 that BSS information was found and 2862 * the BSS should be updated/added. 2863 * 2864 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()! 2865 */ 2866 struct cfg80211_bss * __must_check 2867 cfg80211_inform_bss(struct wiphy *wiphy, 2868 struct ieee80211_channel *channel, 2869 const u8 *bssid, u64 tsf, u16 capability, 2870 u16 beacon_interval, const u8 *ie, size_t ielen, 2871 s32 signal, gfp_t gfp); 2872 2873 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 2874 struct ieee80211_channel *channel, 2875 const u8 *bssid, 2876 const u8 *ssid, size_t ssid_len, 2877 u16 capa_mask, u16 capa_val); 2878 static inline struct cfg80211_bss * 2879 cfg80211_get_ibss(struct wiphy *wiphy, 2880 struct ieee80211_channel *channel, 2881 const u8 *ssid, size_t ssid_len) 2882 { 2883 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 2884 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 2885 } 2886 2887 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy, 2888 struct ieee80211_channel *channel, 2889 const u8 *meshid, size_t meshidlen, 2890 const u8 *meshcfg); 2891 /** 2892 * cfg80211_ref_bss - reference BSS struct 2893 * @bss: the BSS struct to reference 2894 * 2895 * Increments the refcount of the given BSS struct. 2896 */ 2897 void cfg80211_ref_bss(struct cfg80211_bss *bss); 2898 2899 /** 2900 * cfg80211_put_bss - unref BSS struct 2901 * @bss: the BSS struct 2902 * 2903 * Decrements the refcount of the given BSS struct. 2904 */ 2905 void cfg80211_put_bss(struct cfg80211_bss *bss); 2906 2907 /** 2908 * cfg80211_unlink_bss - unlink BSS from internal data structures 2909 * @wiphy: the wiphy 2910 * @bss: the bss to remove 2911 * 2912 * This function removes the given BSS from the internal data structures 2913 * thereby making it no longer show up in scan results etc. Use this 2914 * function when you detect a BSS is gone. Normally BSSes will also time 2915 * out, so it is not necessary to use this function at all. 2916 */ 2917 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 2918 2919 /** 2920 * cfg80211_send_rx_auth - notification of processed authentication 2921 * @dev: network device 2922 * @buf: authentication frame (header + body) 2923 * @len: length of the frame data 2924 * 2925 * This function is called whenever an authentication has been processed in 2926 * station mode. The driver is required to call either this function or 2927 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 2928 * call. This function may sleep. 2929 */ 2930 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 2931 2932 /** 2933 * cfg80211_send_auth_timeout - notification of timed out authentication 2934 * @dev: network device 2935 * @addr: The MAC address of the device with which the authentication timed out 2936 * 2937 * This function may sleep. 2938 */ 2939 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 2940 2941 /** 2942 * cfg80211_send_rx_assoc - notification of processed association 2943 * @dev: network device 2944 * @bss: the BSS struct association was requested for, the struct reference 2945 * is owned by cfg80211 after this call 2946 * @buf: (re)association response frame (header + body) 2947 * @len: length of the frame data 2948 * 2949 * This function is called whenever a (re)association response has been 2950 * processed in station mode. The driver is required to call either this 2951 * function or cfg80211_send_assoc_timeout() to indicate the result of 2952 * cfg80211_ops::assoc() call. This function may sleep. 2953 */ 2954 void cfg80211_send_rx_assoc(struct net_device *dev, struct cfg80211_bss *bss, 2955 const u8 *buf, size_t len); 2956 2957 /** 2958 * cfg80211_send_assoc_timeout - notification of timed out association 2959 * @dev: network device 2960 * @addr: The MAC address of the device with which the association timed out 2961 * 2962 * This function may sleep. 2963 */ 2964 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 2965 2966 /** 2967 * cfg80211_send_deauth - notification of processed deauthentication 2968 * @dev: network device 2969 * @buf: deauthentication frame (header + body) 2970 * @len: length of the frame data 2971 * 2972 * This function is called whenever deauthentication has been processed in 2973 * station mode. This includes both received deauthentication frames and 2974 * locally generated ones. This function may sleep. 2975 */ 2976 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2977 2978 /** 2979 * __cfg80211_send_deauth - notification of processed deauthentication 2980 * @dev: network device 2981 * @buf: deauthentication frame (header + body) 2982 * @len: length of the frame data 2983 * 2984 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 2985 */ 2986 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2987 2988 /** 2989 * cfg80211_send_disassoc - notification of processed disassociation 2990 * @dev: network device 2991 * @buf: disassociation response frame (header + body) 2992 * @len: length of the frame data 2993 * 2994 * This function is called whenever disassociation has been processed in 2995 * station mode. This includes both received disassociation frames and locally 2996 * generated ones. This function may sleep. 2997 */ 2998 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 2999 3000 /** 3001 * __cfg80211_send_disassoc - notification of processed disassociation 3002 * @dev: network device 3003 * @buf: disassociation response frame (header + body) 3004 * @len: length of the frame data 3005 * 3006 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 3007 */ 3008 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 3009 size_t len); 3010 3011 /** 3012 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication 3013 * @dev: network device 3014 * @buf: deauthentication frame (header + body) 3015 * @len: length of the frame data 3016 * 3017 * This function is called whenever a received Deauthentication frame has been 3018 * dropped in station mode because of MFP being used but the Deauthentication 3019 * frame was not protected. This function may sleep. 3020 */ 3021 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, 3022 size_t len); 3023 3024 /** 3025 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation 3026 * @dev: network device 3027 * @buf: disassociation frame (header + body) 3028 * @len: length of the frame data 3029 * 3030 * This function is called whenever a received Disassociation frame has been 3031 * dropped in station mode because of MFP being used but the Disassociation 3032 * frame was not protected. This function may sleep. 3033 */ 3034 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, 3035 size_t len); 3036 3037 /** 3038 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 3039 * @dev: network device 3040 * @addr: The source MAC address of the frame 3041 * @key_type: The key type that the received frame used 3042 * @key_id: Key identifier (0..3). Can be -1 if missing. 3043 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 3044 * @gfp: allocation flags 3045 * 3046 * This function is called whenever the local MAC detects a MIC failure in a 3047 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 3048 * primitive. 3049 */ 3050 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 3051 enum nl80211_key_type key_type, int key_id, 3052 const u8 *tsc, gfp_t gfp); 3053 3054 /** 3055 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 3056 * 3057 * @dev: network device 3058 * @bssid: the BSSID of the IBSS joined 3059 * @gfp: allocation flags 3060 * 3061 * This function notifies cfg80211 that the device joined an IBSS or 3062 * switched to a different BSSID. Before this function can be called, 3063 * either a beacon has to have been received from the IBSS, or one of 3064 * the cfg80211_inform_bss{,_frame} functions must have been called 3065 * with the locally generated beacon -- this guarantees that there is 3066 * always a scan result for this IBSS. cfg80211 will handle the rest. 3067 */ 3068 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 3069 3070 /** 3071 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 3072 * 3073 * @dev: network device 3074 * @macaddr: the MAC address of the new candidate 3075 * @ie: information elements advertised by the peer candidate 3076 * @ie_len: lenght of the information elements buffer 3077 * @gfp: allocation flags 3078 * 3079 * This function notifies cfg80211 that the mesh peer candidate has been 3080 * detected, most likely via a beacon or, less likely, via a probe response. 3081 * cfg80211 then sends a notification to userspace. 3082 */ 3083 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 3084 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 3085 3086 /** 3087 * DOC: RFkill integration 3088 * 3089 * RFkill integration in cfg80211 is almost invisible to drivers, 3090 * as cfg80211 automatically registers an rfkill instance for each 3091 * wireless device it knows about. Soft kill is also translated 3092 * into disconnecting and turning all interfaces off, drivers are 3093 * expected to turn off the device when all interfaces are down. 3094 * 3095 * However, devices may have a hard RFkill line, in which case they 3096 * also need to interact with the rfkill subsystem, via cfg80211. 3097 * They can do this with a few helper functions documented here. 3098 */ 3099 3100 /** 3101 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 3102 * @wiphy: the wiphy 3103 * @blocked: block status 3104 */ 3105 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 3106 3107 /** 3108 * wiphy_rfkill_start_polling - start polling rfkill 3109 * @wiphy: the wiphy 3110 */ 3111 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 3112 3113 /** 3114 * wiphy_rfkill_stop_polling - stop polling rfkill 3115 * @wiphy: the wiphy 3116 */ 3117 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 3118 3119 #ifdef CONFIG_NL80211_TESTMODE 3120 /** 3121 * DOC: Test mode 3122 * 3123 * Test mode is a set of utility functions to allow drivers to 3124 * interact with driver-specific tools to aid, for instance, 3125 * factory programming. 3126 * 3127 * This chapter describes how drivers interact with it, for more 3128 * information see the nl80211 book's chapter on it. 3129 */ 3130 3131 /** 3132 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 3133 * @wiphy: the wiphy 3134 * @approxlen: an upper bound of the length of the data that will 3135 * be put into the skb 3136 * 3137 * This function allocates and pre-fills an skb for a reply to 3138 * the testmode command. Since it is intended for a reply, calling 3139 * it outside of the @testmode_cmd operation is invalid. 3140 * 3141 * The returned skb (or %NULL if any errors happen) is pre-filled 3142 * with the wiphy index and set up in a way that any data that is 3143 * put into the skb (with skb_put(), nla_put() or similar) will end 3144 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that 3145 * needs to be done with the skb is adding data for the corresponding 3146 * userspace tool which can then read that data out of the testdata 3147 * attribute. You must not modify the skb in any other way. 3148 * 3149 * When done, call cfg80211_testmode_reply() with the skb and return 3150 * its error code as the result of the @testmode_cmd operation. 3151 */ 3152 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 3153 int approxlen); 3154 3155 /** 3156 * cfg80211_testmode_reply - send the reply skb 3157 * @skb: The skb, must have been allocated with 3158 * cfg80211_testmode_alloc_reply_skb() 3159 * 3160 * Returns an error code or 0 on success, since calling this 3161 * function will usually be the last thing before returning 3162 * from the @testmode_cmd you should return the error code. 3163 * Note that this function consumes the skb regardless of the 3164 * return value. 3165 */ 3166 int cfg80211_testmode_reply(struct sk_buff *skb); 3167 3168 /** 3169 * cfg80211_testmode_alloc_event_skb - allocate testmode event 3170 * @wiphy: the wiphy 3171 * @approxlen: an upper bound of the length of the data that will 3172 * be put into the skb 3173 * @gfp: allocation flags 3174 * 3175 * This function allocates and pre-fills an skb for an event on the 3176 * testmode multicast group. 3177 * 3178 * The returned skb (or %NULL if any errors happen) is set up in the 3179 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared 3180 * for an event. As there, you should simply add data to it that will 3181 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must 3182 * not modify the skb in any other way. 3183 * 3184 * When done filling the skb, call cfg80211_testmode_event() with the 3185 * skb to send the event. 3186 */ 3187 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 3188 int approxlen, gfp_t gfp); 3189 3190 /** 3191 * cfg80211_testmode_event - send the event 3192 * @skb: The skb, must have been allocated with 3193 * cfg80211_testmode_alloc_event_skb() 3194 * @gfp: allocation flags 3195 * 3196 * This function sends the given @skb, which must have been allocated 3197 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 3198 * consumes it. 3199 */ 3200 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 3201 3202 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 3203 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 3204 #else 3205 #define CFG80211_TESTMODE_CMD(cmd) 3206 #define CFG80211_TESTMODE_DUMP(cmd) 3207 #endif 3208 3209 /** 3210 * cfg80211_connect_result - notify cfg80211 of connection result 3211 * 3212 * @dev: network device 3213 * @bssid: the BSSID of the AP 3214 * @req_ie: association request IEs (maybe be %NULL) 3215 * @req_ie_len: association request IEs length 3216 * @resp_ie: association response IEs (may be %NULL) 3217 * @resp_ie_len: assoc response IEs length 3218 * @status: status code, 0 for successful connection, use 3219 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 3220 * the real status code for failures. 3221 * @gfp: allocation flags 3222 * 3223 * It should be called by the underlying driver whenever connect() has 3224 * succeeded. 3225 */ 3226 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 3227 const u8 *req_ie, size_t req_ie_len, 3228 const u8 *resp_ie, size_t resp_ie_len, 3229 u16 status, gfp_t gfp); 3230 3231 /** 3232 * cfg80211_roamed - notify cfg80211 of roaming 3233 * 3234 * @dev: network device 3235 * @channel: the channel of the new AP 3236 * @bssid: the BSSID of the new AP 3237 * @req_ie: association request IEs (maybe be %NULL) 3238 * @req_ie_len: association request IEs length 3239 * @resp_ie: association response IEs (may be %NULL) 3240 * @resp_ie_len: assoc response IEs length 3241 * @gfp: allocation flags 3242 * 3243 * It should be called by the underlying driver whenever it roamed 3244 * from one AP to another while connected. 3245 */ 3246 void cfg80211_roamed(struct net_device *dev, 3247 struct ieee80211_channel *channel, 3248 const u8 *bssid, 3249 const u8 *req_ie, size_t req_ie_len, 3250 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3251 3252 /** 3253 * cfg80211_roamed_bss - notify cfg80211 of roaming 3254 * 3255 * @dev: network device 3256 * @bss: entry of bss to which STA got roamed 3257 * @req_ie: association request IEs (maybe be %NULL) 3258 * @req_ie_len: association request IEs length 3259 * @resp_ie: association response IEs (may be %NULL) 3260 * @resp_ie_len: assoc response IEs length 3261 * @gfp: allocation flags 3262 * 3263 * This is just a wrapper to notify cfg80211 of roaming event with driver 3264 * passing bss to avoid a race in timeout of the bss entry. It should be 3265 * called by the underlying driver whenever it roamed from one AP to another 3266 * while connected. Drivers which have roaming implemented in firmware 3267 * may use this function to avoid a race in bss entry timeout where the bss 3268 * entry of the new AP is seen in the driver, but gets timed out by the time 3269 * it is accessed in __cfg80211_roamed() due to delay in scheduling 3270 * rdev->event_work. In case of any failures, the reference is released 3271 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise, 3272 * it will be released while diconneting from the current bss. 3273 */ 3274 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss, 3275 const u8 *req_ie, size_t req_ie_len, 3276 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 3277 3278 /** 3279 * cfg80211_disconnected - notify cfg80211 that connection was dropped 3280 * 3281 * @dev: network device 3282 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 3283 * @ie_len: length of IEs 3284 * @reason: reason code for the disconnection, set it to 0 if unknown 3285 * @gfp: allocation flags 3286 * 3287 * After it calls this function, the driver should enter an idle state 3288 * and not try to connect to any AP any more. 3289 */ 3290 void cfg80211_disconnected(struct net_device *dev, u16 reason, 3291 u8 *ie, size_t ie_len, gfp_t gfp); 3292 3293 /** 3294 * cfg80211_ready_on_channel - notification of remain_on_channel start 3295 * @wdev: wireless device 3296 * @cookie: the request cookie 3297 * @chan: The current channel (from remain_on_channel request) 3298 * @channel_type: Channel type 3299 * @duration: Duration in milliseconds that the driver intents to remain on the 3300 * channel 3301 * @gfp: allocation flags 3302 */ 3303 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, 3304 struct ieee80211_channel *chan, 3305 enum nl80211_channel_type channel_type, 3306 unsigned int duration, gfp_t gfp); 3307 3308 /** 3309 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 3310 * @wdev: wireless device 3311 * @cookie: the request cookie 3312 * @chan: The current channel (from remain_on_channel request) 3313 * @channel_type: Channel type 3314 * @gfp: allocation flags 3315 */ 3316 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, 3317 struct ieee80211_channel *chan, 3318 enum nl80211_channel_type channel_type, 3319 gfp_t gfp); 3320 3321 3322 /** 3323 * cfg80211_new_sta - notify userspace about station 3324 * 3325 * @dev: the netdev 3326 * @mac_addr: the station's address 3327 * @sinfo: the station information 3328 * @gfp: allocation flags 3329 */ 3330 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 3331 struct station_info *sinfo, gfp_t gfp); 3332 3333 /** 3334 * cfg80211_del_sta - notify userspace about deletion of a station 3335 * 3336 * @dev: the netdev 3337 * @mac_addr: the station's address 3338 * @gfp: allocation flags 3339 */ 3340 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 3341 3342 /** 3343 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 3344 * @wdev: wireless device receiving the frame 3345 * @freq: Frequency on which the frame was received in MHz 3346 * @sig_dbm: signal strength in mBm, or 0 if unknown 3347 * @buf: Management frame (header + body) 3348 * @len: length of the frame data 3349 * @gfp: context flags 3350 * 3351 * Returns %true if a user space application has registered for this frame. 3352 * For action frames, that makes it responsible for rejecting unrecognized 3353 * action frames; %false otherwise, in which case for action frames the 3354 * driver is responsible for rejecting the frame. 3355 * 3356 * This function is called whenever an Action frame is received for a station 3357 * mode interface, but is not processed in kernel. 3358 */ 3359 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, 3360 const u8 *buf, size_t len, gfp_t gfp); 3361 3362 /** 3363 * cfg80211_mgmt_tx_status - notification of TX status for management frame 3364 * @wdev: wireless device receiving the frame 3365 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 3366 * @buf: Management frame (header + body) 3367 * @len: length of the frame data 3368 * @ack: Whether frame was acknowledged 3369 * @gfp: context flags 3370 * 3371 * This function is called whenever a management frame was requested to be 3372 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 3373 * transmission attempt. 3374 */ 3375 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, 3376 const u8 *buf, size_t len, bool ack, gfp_t gfp); 3377 3378 3379 /** 3380 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 3381 * @dev: network device 3382 * @rssi_event: the triggered RSSI event 3383 * @gfp: context flags 3384 * 3385 * This function is called when a configured connection quality monitoring 3386 * rssi threshold reached event occurs. 3387 */ 3388 void cfg80211_cqm_rssi_notify(struct net_device *dev, 3389 enum nl80211_cqm_rssi_threshold_event rssi_event, 3390 gfp_t gfp); 3391 3392 /** 3393 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 3394 * @dev: network device 3395 * @peer: peer's MAC address 3396 * @num_packets: how many packets were lost -- should be a fixed threshold 3397 * but probably no less than maybe 50, or maybe a throughput dependent 3398 * threshold (to account for temporary interference) 3399 * @gfp: context flags 3400 */ 3401 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 3402 const u8 *peer, u32 num_packets, gfp_t gfp); 3403 3404 /** 3405 * cfg80211_cqm_txe_notify - TX error rate event 3406 * @dev: network device 3407 * @peer: peer's MAC address 3408 * @num_packets: how many packets were lost 3409 * @rate: % of packets which failed transmission 3410 * @intvl: interval (in s) over which the TX failure threshold was breached. 3411 * @gfp: context flags 3412 * 3413 * Notify userspace when configured % TX failures over number of packets in a 3414 * given interval is exceeded. 3415 */ 3416 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, 3417 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); 3418 3419 /** 3420 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 3421 * @dev: network device 3422 * @bssid: BSSID of AP (to avoid races) 3423 * @replay_ctr: new replay counter 3424 * @gfp: allocation flags 3425 */ 3426 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 3427 const u8 *replay_ctr, gfp_t gfp); 3428 3429 /** 3430 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate 3431 * @dev: network device 3432 * @index: candidate index (the smaller the index, the higher the priority) 3433 * @bssid: BSSID of AP 3434 * @preauth: Whether AP advertises support for RSN pre-authentication 3435 * @gfp: allocation flags 3436 */ 3437 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, 3438 const u8 *bssid, bool preauth, gfp_t gfp); 3439 3440 /** 3441 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame 3442 * @dev: The device the frame matched to 3443 * @addr: the transmitter address 3444 * @gfp: context flags 3445 * 3446 * This function is used in AP mode (only!) to inform userspace that 3447 * a spurious class 3 frame was received, to be able to deauth the 3448 * sender. 3449 * Returns %true if the frame was passed to userspace (or this failed 3450 * for a reason other than not having a subscription.) 3451 */ 3452 bool cfg80211_rx_spurious_frame(struct net_device *dev, 3453 const u8 *addr, gfp_t gfp); 3454 3455 /** 3456 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame 3457 * @dev: The device the frame matched to 3458 * @addr: the transmitter address 3459 * @gfp: context flags 3460 * 3461 * This function is used in AP mode (only!) to inform userspace that 3462 * an associated station sent a 4addr frame but that wasn't expected. 3463 * It is allowed and desirable to send this event only once for each 3464 * station to avoid event flooding. 3465 * Returns %true if the frame was passed to userspace (or this failed 3466 * for a reason other than not having a subscription.) 3467 */ 3468 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, 3469 const u8 *addr, gfp_t gfp); 3470 3471 /** 3472 * cfg80211_probe_status - notify userspace about probe status 3473 * @dev: the device the probe was sent on 3474 * @addr: the address of the peer 3475 * @cookie: the cookie filled in @probe_client previously 3476 * @acked: indicates whether probe was acked or not 3477 * @gfp: allocation flags 3478 */ 3479 void cfg80211_probe_status(struct net_device *dev, const u8 *addr, 3480 u64 cookie, bool acked, gfp_t gfp); 3481 3482 /** 3483 * cfg80211_report_obss_beacon - report beacon from other APs 3484 * @wiphy: The wiphy that received the beacon 3485 * @frame: the frame 3486 * @len: length of the frame 3487 * @freq: frequency the frame was received on 3488 * @sig_dbm: signal strength in mBm, or 0 if unknown 3489 * @gfp: allocation flags 3490 * 3491 * Use this function to report to userspace when a beacon was 3492 * received. It is not useful to call this when there is no 3493 * netdev that is in AP/GO mode. 3494 */ 3495 void cfg80211_report_obss_beacon(struct wiphy *wiphy, 3496 const u8 *frame, size_t len, 3497 int freq, int sig_dbm, gfp_t gfp); 3498 3499 /** 3500 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used 3501 * @wiphy: the wiphy 3502 * @chan: main channel 3503 * @channel_type: HT mode 3504 * 3505 * This function returns true if there is no secondary channel or the secondary 3506 * channel can be used for beaconing (i.e. is not a radar channel etc.) 3507 */ 3508 bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy, 3509 struct ieee80211_channel *chan, 3510 enum nl80211_channel_type channel_type); 3511 3512 /* 3513 * cfg80211_ch_switch_notify - update wdev channel and notify userspace 3514 * @dev: the device which switched channels 3515 * @freq: new channel frequency (in MHz) 3516 * @type: channel type 3517 * 3518 * Acquires wdev_lock, so must only be called from sleepable driver context! 3519 */ 3520 void cfg80211_ch_switch_notify(struct net_device *dev, int freq, 3521 enum nl80211_channel_type type); 3522 3523 /* 3524 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) 3525 * @rate: given rate_info to calculate bitrate from 3526 * 3527 * return 0 if MCS index >= 32 3528 */ 3529 u32 cfg80211_calculate_bitrate(struct rate_info *rate); 3530 3531 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 3532 3533 /* wiphy_printk helpers, similar to dev_printk */ 3534 3535 #define wiphy_printk(level, wiphy, format, args...) \ 3536 dev_printk(level, &(wiphy)->dev, format, ##args) 3537 #define wiphy_emerg(wiphy, format, args...) \ 3538 dev_emerg(&(wiphy)->dev, format, ##args) 3539 #define wiphy_alert(wiphy, format, args...) \ 3540 dev_alert(&(wiphy)->dev, format, ##args) 3541 #define wiphy_crit(wiphy, format, args...) \ 3542 dev_crit(&(wiphy)->dev, format, ##args) 3543 #define wiphy_err(wiphy, format, args...) \ 3544 dev_err(&(wiphy)->dev, format, ##args) 3545 #define wiphy_warn(wiphy, format, args...) \ 3546 dev_warn(&(wiphy)->dev, format, ##args) 3547 #define wiphy_notice(wiphy, format, args...) \ 3548 dev_notice(&(wiphy)->dev, format, ##args) 3549 #define wiphy_info(wiphy, format, args...) \ 3550 dev_info(&(wiphy)->dev, format, ##args) 3551 3552 #define wiphy_debug(wiphy, format, args...) \ 3553 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 3554 3555 #define wiphy_dbg(wiphy, format, args...) \ 3556 dev_dbg(&(wiphy)->dev, format, ##args) 3557 3558 #if defined(VERBOSE_DEBUG) 3559 #define wiphy_vdbg wiphy_dbg 3560 #else 3561 #define wiphy_vdbg(wiphy, format, args...) \ 3562 ({ \ 3563 if (0) \ 3564 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 3565 0; \ 3566 }) 3567 #endif 3568 3569 /* 3570 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 3571 * of using a WARN/WARN_ON to get the message out, including the 3572 * file/line information and a backtrace. 3573 */ 3574 #define wiphy_WARN(wiphy, format, args...) \ 3575 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 3576 3577 #endif /* __NET_CFG80211_H */ 3578