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/netlink.h> 17 #include <linux/skbuff.h> 18 #include <linux/nl80211.h> 19 #include <linux/if_ether.h> 20 #include <linux/ieee80211.h> 21 #include <net/regulatory.h> 22 23 /* remove once we remove the wext stuff */ 24 #include <net/iw_handler.h> 25 #include <linux/wireless.h> 26 27 28 /** 29 * DOC: Introduction 30 * 31 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges 32 * userspace and drivers, and offers some utility functionality associated 33 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used 34 * by all modern wireless drivers in Linux, so that they offer a consistent 35 * API through nl80211. For backward compatibility, cfg80211 also offers 36 * wireless extensions to userspace, but hides them from drivers completely. 37 * 38 * Additionally, cfg80211 contains code to help enforce regulatory spectrum 39 * use restrictions. 40 */ 41 42 43 /** 44 * DOC: Device registration 45 * 46 * In order for a driver to use cfg80211, it must register the hardware device 47 * with cfg80211. This happens through a number of hardware capability structs 48 * described below. 49 * 50 * The fundamental structure for each device is the 'wiphy', of which each 51 * instance describes a physical wireless device connected to the system. Each 52 * such wiphy can have zero, one, or many virtual interfaces associated with 53 * it, which need to be identified as such by pointing the network interface's 54 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes 55 * the wireless part of the interface, normally this struct is embedded in the 56 * network interface's private data area. Drivers can optionally allow creating 57 * or destroying virtual interfaces on the fly, but without at least one or the 58 * ability to create some the wireless device isn't useful. 59 * 60 * Each wiphy structure contains device capability information, and also has 61 * a pointer to the various operations the driver offers. The definitions and 62 * structures here describe these capabilities in detail. 63 */ 64 65 /* 66 * wireless hardware capability structures 67 */ 68 69 /** 70 * enum ieee80211_band - supported frequency bands 71 * 72 * The bands are assigned this way because the supported 73 * bitrates differ in these bands. 74 * 75 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band 76 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) 77 * @IEEE80211_NUM_BANDS: number of defined bands 78 */ 79 enum ieee80211_band { 80 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, 81 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, 82 83 /* keep last */ 84 IEEE80211_NUM_BANDS 85 }; 86 87 /** 88 * enum ieee80211_channel_flags - channel flags 89 * 90 * Channel flags set by the regulatory control code. 91 * 92 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 93 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted 94 * on this channel. 95 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. 96 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 97 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 98 * is not permitted. 99 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 100 * is not permitted. 101 */ 102 enum ieee80211_channel_flags { 103 IEEE80211_CHAN_DISABLED = 1<<0, 104 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, 105 IEEE80211_CHAN_NO_IBSS = 1<<2, 106 IEEE80211_CHAN_RADAR = 1<<3, 107 IEEE80211_CHAN_NO_HT40PLUS = 1<<4, 108 IEEE80211_CHAN_NO_HT40MINUS = 1<<5, 109 }; 110 111 #define IEEE80211_CHAN_NO_HT40 \ 112 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 113 114 /** 115 * struct ieee80211_channel - channel definition 116 * 117 * This structure describes a single channel for use 118 * with cfg80211. 119 * 120 * @center_freq: center frequency in MHz 121 * @hw_value: hardware-specific value for the channel 122 * @flags: channel flags from &enum ieee80211_channel_flags. 123 * @orig_flags: channel flags at registration time, used by regulatory 124 * code to support devices with additional restrictions 125 * @band: band this channel belongs to. 126 * @max_antenna_gain: maximum antenna gain in dBi 127 * @max_power: maximum transmission power (in dBm) 128 * @beacon_found: helper to regulatory code to indicate when a beacon 129 * has been found on this channel. Use regulatory_hint_found_beacon() 130 * to enable this, this is useful only on 5 GHz band. 131 * @orig_mag: internal use 132 * @orig_mpwr: internal use 133 */ 134 struct ieee80211_channel { 135 enum ieee80211_band band; 136 u16 center_freq; 137 u16 hw_value; 138 u32 flags; 139 int max_antenna_gain; 140 int max_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_supported_band - frequency band definition 217 * 218 * This structure describes a frequency band a wiphy 219 * is able to operate in. 220 * 221 * @channels: Array of channels the hardware can operate in 222 * in this band. 223 * @band: the band this structure represents 224 * @n_channels: Number of channels in @channels 225 * @bitrates: Array of bitrates the hardware can operate with 226 * in this band. Must be sorted to give a valid "supported 227 * rates" IE, i.e. CCK rates first, then OFDM. 228 * @n_bitrates: Number of bitrates in @bitrates 229 * @ht_cap: HT capabilities in this band 230 */ 231 struct ieee80211_supported_band { 232 struct ieee80211_channel *channels; 233 struct ieee80211_rate *bitrates; 234 enum ieee80211_band band; 235 int n_channels; 236 int n_bitrates; 237 struct ieee80211_sta_ht_cap ht_cap; 238 }; 239 240 /* 241 * Wireless hardware/device configuration structures and methods 242 */ 243 244 /** 245 * DOC: Actions and configuration 246 * 247 * Each wireless device and each virtual interface offer a set of configuration 248 * operations and other actions that are invoked by userspace. Each of these 249 * actions is described in the operations structure, and the parameters these 250 * operations use are described separately. 251 * 252 * Additionally, some operations are asynchronous and expect to get status 253 * information via some functions that drivers need to call. 254 * 255 * Scanning and BSS list handling with its associated functionality is described 256 * in a separate chapter. 257 */ 258 259 /** 260 * struct vif_params - describes virtual interface parameters 261 * @use_4addr: use 4-address frames 262 */ 263 struct vif_params { 264 int use_4addr; 265 }; 266 267 /** 268 * struct key_params - key information 269 * 270 * Information about a key 271 * 272 * @key: key material 273 * @key_len: length of key material 274 * @cipher: cipher suite selector 275 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 276 * with the get_key() callback, must be in little endian, 277 * length given by @seq_len. 278 * @seq_len: length of @seq. 279 */ 280 struct key_params { 281 u8 *key; 282 u8 *seq; 283 int key_len; 284 int seq_len; 285 u32 cipher; 286 }; 287 288 /** 289 * enum survey_info_flags - survey information flags 290 * 291 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 292 * @SURVEY_INFO_IN_USE: channel is currently being used 293 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in 294 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in 295 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in 296 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in 297 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in 298 * 299 * Used by the driver to indicate which info in &struct survey_info 300 * it has filled in during the get_survey(). 301 */ 302 enum survey_info_flags { 303 SURVEY_INFO_NOISE_DBM = 1<<0, 304 SURVEY_INFO_IN_USE = 1<<1, 305 SURVEY_INFO_CHANNEL_TIME = 1<<2, 306 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, 307 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, 308 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, 309 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, 310 }; 311 312 /** 313 * struct survey_info - channel survey response 314 * 315 * @channel: the channel this survey record reports, mandatory 316 * @filled: bitflag of flags from &enum survey_info_flags 317 * @noise: channel noise in dBm. This and all following fields are 318 * optional 319 * @channel_time: amount of time in ms the radio spent on the channel 320 * @channel_time_busy: amount of time the primary channel was sensed busy 321 * @channel_time_ext_busy: amount of time the extension channel was sensed busy 322 * @channel_time_rx: amount of time the radio spent receiving data 323 * @channel_time_tx: amount of time the radio spent transmitting data 324 * 325 * Used by dump_survey() to report back per-channel survey information. 326 * 327 * This structure can later be expanded with things like 328 * channel duty cycle etc. 329 */ 330 struct survey_info { 331 struct ieee80211_channel *channel; 332 u64 channel_time; 333 u64 channel_time_busy; 334 u64 channel_time_ext_busy; 335 u64 channel_time_rx; 336 u64 channel_time_tx; 337 u32 filled; 338 s8 noise; 339 }; 340 341 /** 342 * struct beacon_parameters - beacon parameters 343 * 344 * Used to configure the beacon for an interface. 345 * 346 * @head: head portion of beacon (before TIM IE) 347 * or %NULL if not changed 348 * @tail: tail portion of beacon (after TIM IE) 349 * or %NULL if not changed 350 * @interval: beacon interval or zero if not changed 351 * @dtim_period: DTIM period or zero if not changed 352 * @head_len: length of @head 353 * @tail_len: length of @tail 354 */ 355 struct beacon_parameters { 356 u8 *head, *tail; 357 int interval, dtim_period; 358 int head_len, tail_len; 359 }; 360 361 /** 362 * enum plink_action - actions to perform in mesh peers 363 * 364 * @PLINK_ACTION_INVALID: action 0 is reserved 365 * @PLINK_ACTION_OPEN: start mesh peer link establishment 366 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer 367 */ 368 enum plink_actions { 369 PLINK_ACTION_INVALID, 370 PLINK_ACTION_OPEN, 371 PLINK_ACTION_BLOCK, 372 }; 373 374 /** 375 * struct station_parameters - station parameters 376 * 377 * Used to change and create a new station. 378 * 379 * @vlan: vlan interface station should belong to 380 * @supported_rates: supported rates in IEEE 802.11 format 381 * (or NULL for no change) 382 * @supported_rates_len: number of supported rates 383 * @sta_flags_mask: station flags that changed 384 * (bitmask of BIT(NL80211_STA_FLAG_...)) 385 * @sta_flags_set: station flags values 386 * (bitmask of BIT(NL80211_STA_FLAG_...)) 387 * @listen_interval: listen interval or -1 for no change 388 * @aid: AID or zero for no change 389 * @plink_action: plink action to take 390 * @plink_state: set the peer link state for a station 391 * @ht_capa: HT capabilities of station 392 */ 393 struct station_parameters { 394 u8 *supported_rates; 395 struct net_device *vlan; 396 u32 sta_flags_mask, sta_flags_set; 397 int listen_interval; 398 u16 aid; 399 u8 supported_rates_len; 400 u8 plink_action; 401 u8 plink_state; 402 struct ieee80211_ht_cap *ht_capa; 403 }; 404 405 /** 406 * enum station_info_flags - station information flags 407 * 408 * Used by the driver to indicate which info in &struct station_info 409 * it has filled in during get_station() or dump_station(). 410 * 411 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 412 * @STATION_INFO_RX_BYTES: @rx_bytes filled 413 * @STATION_INFO_TX_BYTES: @tx_bytes filled 414 * @STATION_INFO_LLID: @llid filled 415 * @STATION_INFO_PLID: @plid filled 416 * @STATION_INFO_PLINK_STATE: @plink_state filled 417 * @STATION_INFO_SIGNAL: @signal filled 418 * @STATION_INFO_TX_BITRATE: @txrate fields are filled 419 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 420 * @STATION_INFO_RX_PACKETS: @rx_packets filled 421 * @STATION_INFO_TX_PACKETS: @tx_packets filled 422 * @STATION_INFO_TX_RETRIES: @tx_retries filled 423 * @STATION_INFO_TX_FAILED: @tx_failed filled 424 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled 425 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled 426 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled 427 * @STATION_INFO_BSS_PARAM: @bss_param filled 428 * @STATION_INFO_CONNECTED_TIME: @connected_time filled 429 */ 430 enum station_info_flags { 431 STATION_INFO_INACTIVE_TIME = 1<<0, 432 STATION_INFO_RX_BYTES = 1<<1, 433 STATION_INFO_TX_BYTES = 1<<2, 434 STATION_INFO_LLID = 1<<3, 435 STATION_INFO_PLID = 1<<4, 436 STATION_INFO_PLINK_STATE = 1<<5, 437 STATION_INFO_SIGNAL = 1<<6, 438 STATION_INFO_TX_BITRATE = 1<<7, 439 STATION_INFO_RX_PACKETS = 1<<8, 440 STATION_INFO_TX_PACKETS = 1<<9, 441 STATION_INFO_TX_RETRIES = 1<<10, 442 STATION_INFO_TX_FAILED = 1<<11, 443 STATION_INFO_RX_DROP_MISC = 1<<12, 444 STATION_INFO_SIGNAL_AVG = 1<<13, 445 STATION_INFO_RX_BITRATE = 1<<14, 446 STATION_INFO_BSS_PARAM = 1<<15, 447 STATION_INFO_CONNECTED_TIME = 1<<16 448 }; 449 450 /** 451 * enum station_info_rate_flags - bitrate info flags 452 * 453 * Used by the driver to indicate the specific rate transmission 454 * type for 802.11n transmissions. 455 * 456 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled 457 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission 458 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 459 */ 460 enum rate_info_flags { 461 RATE_INFO_FLAGS_MCS = 1<<0, 462 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1, 463 RATE_INFO_FLAGS_SHORT_GI = 1<<2, 464 }; 465 466 /** 467 * struct rate_info - bitrate information 468 * 469 * Information about a receiving or transmitting bitrate 470 * 471 * @flags: bitflag of flags from &enum rate_info_flags 472 * @mcs: mcs index if struct describes a 802.11n bitrate 473 * @legacy: bitrate in 100kbit/s for 802.11abg 474 */ 475 struct rate_info { 476 u8 flags; 477 u8 mcs; 478 u16 legacy; 479 }; 480 481 /** 482 * enum station_info_rate_flags - bitrate info flags 483 * 484 * Used by the driver to indicate the specific rate transmission 485 * type for 802.11n transmissions. 486 * 487 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 488 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 489 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 490 */ 491 enum bss_param_flags { 492 BSS_PARAM_FLAGS_CTS_PROT = 1<<0, 493 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, 494 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, 495 }; 496 497 /** 498 * struct sta_bss_parameters - BSS parameters for the attached station 499 * 500 * Information about the currently associated BSS 501 * 502 * @flags: bitflag of flags from &enum bss_param_flags 503 * @dtim_period: DTIM period for the BSS 504 * @beacon_interval: beacon interval 505 */ 506 struct sta_bss_parameters { 507 u8 flags; 508 u8 dtim_period; 509 u16 beacon_interval; 510 }; 511 512 /** 513 * struct station_info - station information 514 * 515 * Station information filled by driver for get_station() and dump_station. 516 * 517 * @filled: bitflag of flags from &enum station_info_flags 518 * @connected_time: time(in secs) since a station is last connected 519 * @inactive_time: time since last station activity (tx/rx) in milliseconds 520 * @rx_bytes: bytes received from this station 521 * @tx_bytes: bytes transmitted to this station 522 * @llid: mesh local link id 523 * @plid: mesh peer link id 524 * @plink_state: mesh peer link state 525 * @signal: signal strength of last received packet in dBm 526 * @signal_avg: signal strength average in dBm 527 * @txrate: current unicast bitrate from this station 528 * @rxrate: current unicast bitrate to this station 529 * @rx_packets: packets received from this station 530 * @tx_packets: packets transmitted to this station 531 * @tx_retries: cumulative retry counts 532 * @tx_failed: number of failed transmissions (retries exceeded, no ACK) 533 * @rx_dropped_misc: Dropped for un-specified reason. 534 * @generation: generation number for nl80211 dumps. 535 * This number should increase every time the list of stations 536 * changes, i.e. when a station is added or removed, so that 537 * userspace can tell whether it got a consistent snapshot. 538 */ 539 struct station_info { 540 u32 filled; 541 u32 connected_time; 542 u32 inactive_time; 543 u32 rx_bytes; 544 u32 tx_bytes; 545 u16 llid; 546 u16 plid; 547 u8 plink_state; 548 s8 signal; 549 s8 signal_avg; 550 struct rate_info txrate; 551 struct rate_info rxrate; 552 u32 rx_packets; 553 u32 tx_packets; 554 u32 tx_retries; 555 u32 tx_failed; 556 u32 rx_dropped_misc; 557 struct sta_bss_parameters bss_param; 558 559 int generation; 560 }; 561 562 /** 563 * enum monitor_flags - monitor flags 564 * 565 * Monitor interface configuration flags. Note that these must be the bits 566 * according to the nl80211 flags. 567 * 568 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 569 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 570 * @MONITOR_FLAG_CONTROL: pass control frames 571 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 572 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 573 */ 574 enum monitor_flags { 575 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 576 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 577 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 578 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 579 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 580 }; 581 582 /** 583 * enum mpath_info_flags - mesh path information flags 584 * 585 * Used by the driver to indicate which info in &struct mpath_info it has filled 586 * in during get_station() or dump_station(). 587 * 588 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 589 * @MPATH_INFO_SN: @sn filled 590 * @MPATH_INFO_METRIC: @metric filled 591 * @MPATH_INFO_EXPTIME: @exptime filled 592 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 593 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 594 * @MPATH_INFO_FLAGS: @flags filled 595 */ 596 enum mpath_info_flags { 597 MPATH_INFO_FRAME_QLEN = BIT(0), 598 MPATH_INFO_SN = BIT(1), 599 MPATH_INFO_METRIC = BIT(2), 600 MPATH_INFO_EXPTIME = BIT(3), 601 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 602 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 603 MPATH_INFO_FLAGS = BIT(6), 604 }; 605 606 /** 607 * struct mpath_info - mesh path information 608 * 609 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 610 * 611 * @filled: bitfield of flags from &enum mpath_info_flags 612 * @frame_qlen: number of queued frames for this destination 613 * @sn: target sequence number 614 * @metric: metric (cost) of this mesh path 615 * @exptime: expiration time for the mesh path from now, in msecs 616 * @flags: mesh path flags 617 * @discovery_timeout: total mesh path discovery timeout, in msecs 618 * @discovery_retries: mesh path discovery retries 619 * @generation: generation number for nl80211 dumps. 620 * This number should increase every time the list of mesh paths 621 * changes, i.e. when a station is added or removed, so that 622 * userspace can tell whether it got a consistent snapshot. 623 */ 624 struct mpath_info { 625 u32 filled; 626 u32 frame_qlen; 627 u32 sn; 628 u32 metric; 629 u32 exptime; 630 u32 discovery_timeout; 631 u8 discovery_retries; 632 u8 flags; 633 634 int generation; 635 }; 636 637 /** 638 * struct bss_parameters - BSS parameters 639 * 640 * Used to change BSS parameters (mainly for AP mode). 641 * 642 * @use_cts_prot: Whether to use CTS protection 643 * (0 = no, 1 = yes, -1 = do not change) 644 * @use_short_preamble: Whether the use of short preambles is allowed 645 * (0 = no, 1 = yes, -1 = do not change) 646 * @use_short_slot_time: Whether the use of short slot time is allowed 647 * (0 = no, 1 = yes, -1 = do not change) 648 * @basic_rates: basic rates in IEEE 802.11 format 649 * (or NULL for no change) 650 * @basic_rates_len: number of basic rates 651 * @ap_isolate: do not forward packets between connected stations 652 * @ht_opmode: HT Operation mode 653 * (u16 = opmode, -1 = do not change) 654 */ 655 struct bss_parameters { 656 int use_cts_prot; 657 int use_short_preamble; 658 int use_short_slot_time; 659 u8 *basic_rates; 660 u8 basic_rates_len; 661 int ap_isolate; 662 int ht_opmode; 663 }; 664 665 /* 666 * struct mesh_config - 802.11s mesh configuration 667 * 668 * These parameters can be changed while the mesh is active. 669 */ 670 struct mesh_config { 671 /* Timeouts in ms */ 672 /* Mesh plink management parameters */ 673 u16 dot11MeshRetryTimeout; 674 u16 dot11MeshConfirmTimeout; 675 u16 dot11MeshHoldingTimeout; 676 u16 dot11MeshMaxPeerLinks; 677 u8 dot11MeshMaxRetries; 678 u8 dot11MeshTTL; 679 /* ttl used in path selection information elements */ 680 u8 element_ttl; 681 bool auto_open_plinks; 682 /* HWMP parameters */ 683 u8 dot11MeshHWMPmaxPREQretries; 684 u32 path_refresh_time; 685 u16 min_discovery_timeout; 686 u32 dot11MeshHWMPactivePathTimeout; 687 u16 dot11MeshHWMPpreqMinInterval; 688 u16 dot11MeshHWMPnetDiameterTraversalTime; 689 u8 dot11MeshHWMPRootMode; 690 }; 691 692 /** 693 * struct mesh_setup - 802.11s mesh setup configuration 694 * @mesh_id: the mesh ID 695 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 696 * @path_sel_proto: which path selection protocol to use 697 * @path_metric: which metric to use 698 * @ie: vendor information elements (optional) 699 * @ie_len: length of vendor information elements 700 * @is_authenticated: this mesh requires authentication 701 * @is_secure: this mesh uses security 702 * 703 * These parameters are fixed when the mesh is created. 704 */ 705 struct mesh_setup { 706 const u8 *mesh_id; 707 u8 mesh_id_len; 708 u8 path_sel_proto; 709 u8 path_metric; 710 const u8 *ie; 711 u8 ie_len; 712 bool is_authenticated; 713 bool is_secure; 714 }; 715 716 /** 717 * struct ieee80211_txq_params - TX queue parameters 718 * @queue: TX queue identifier (NL80211_TXQ_Q_*) 719 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 720 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 721 * 1..32767] 722 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 723 * 1..32767] 724 * @aifs: Arbitration interframe space [0..255] 725 */ 726 struct ieee80211_txq_params { 727 enum nl80211_txq_q queue; 728 u16 txop; 729 u16 cwmin; 730 u16 cwmax; 731 u8 aifs; 732 }; 733 734 /* from net/wireless.h */ 735 struct wiphy; 736 737 /** 738 * DOC: Scanning and BSS list handling 739 * 740 * The scanning process itself is fairly simple, but cfg80211 offers quite 741 * a bit of helper functionality. To start a scan, the scan operation will 742 * be invoked with a scan definition. This scan definition contains the 743 * channels to scan, and the SSIDs to send probe requests for (including the 744 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 745 * probe. Additionally, a scan request may contain extra information elements 746 * that should be added to the probe request. The IEs are guaranteed to be 747 * well-formed, and will not exceed the maximum length the driver advertised 748 * in the wiphy structure. 749 * 750 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 751 * it is responsible for maintaining the BSS list; the driver should not 752 * maintain a list itself. For this notification, various functions exist. 753 * 754 * Since drivers do not maintain a BSS list, there are also a number of 755 * functions to search for a BSS and obtain information about it from the 756 * BSS structure cfg80211 maintains. The BSS list is also made available 757 * to userspace. 758 */ 759 760 /** 761 * struct cfg80211_ssid - SSID description 762 * @ssid: the SSID 763 * @ssid_len: length of the ssid 764 */ 765 struct cfg80211_ssid { 766 u8 ssid[IEEE80211_MAX_SSID_LEN]; 767 u8 ssid_len; 768 }; 769 770 /** 771 * struct cfg80211_scan_request - scan request description 772 * 773 * @ssids: SSIDs to scan for (active scan only) 774 * @n_ssids: number of SSIDs 775 * @channels: channels to scan on. 776 * @n_channels: total number of channels to scan 777 * @ie: optional information element(s) to add into Probe Request or %NULL 778 * @ie_len: length of ie in octets 779 * @wiphy: the wiphy this was for 780 * @dev: the interface 781 * @aborted: (internal) scan request was notified as aborted 782 */ 783 struct cfg80211_scan_request { 784 struct cfg80211_ssid *ssids; 785 int n_ssids; 786 u32 n_channels; 787 const u8 *ie; 788 size_t ie_len; 789 790 /* internal */ 791 struct wiphy *wiphy; 792 struct net_device *dev; 793 bool aborted; 794 795 /* keep last */ 796 struct ieee80211_channel *channels[0]; 797 }; 798 799 /** 800 * struct cfg80211_sched_scan_request - scheduled scan request description 801 * 802 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 803 * @n_ssids: number of SSIDs 804 * @n_channels: total number of channels to scan 805 * @interval: interval between each scheduled scan cycle 806 * @ie: optional information element(s) to add into Probe Request or %NULL 807 * @ie_len: length of ie in octets 808 * @wiphy: the wiphy this was for 809 * @dev: the interface 810 * @channels: channels to scan 811 */ 812 struct cfg80211_sched_scan_request { 813 struct cfg80211_ssid *ssids; 814 int n_ssids; 815 u32 n_channels; 816 u32 interval; 817 const u8 *ie; 818 size_t ie_len; 819 820 /* internal */ 821 struct wiphy *wiphy; 822 struct net_device *dev; 823 824 /* keep last */ 825 struct ieee80211_channel *channels[0]; 826 }; 827 828 /** 829 * enum cfg80211_signal_type - signal type 830 * 831 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 832 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 833 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 834 */ 835 enum cfg80211_signal_type { 836 CFG80211_SIGNAL_TYPE_NONE, 837 CFG80211_SIGNAL_TYPE_MBM, 838 CFG80211_SIGNAL_TYPE_UNSPEC, 839 }; 840 841 /** 842 * struct cfg80211_bss - BSS description 843 * 844 * This structure describes a BSS (which may also be a mesh network) 845 * for use in scan results and similar. 846 * 847 * @channel: channel this BSS is on 848 * @bssid: BSSID of the BSS 849 * @tsf: timestamp of last received update 850 * @beacon_interval: the beacon interval as from the frame 851 * @capability: the capability field in host byte order 852 * @information_elements: the information elements (Note that there 853 * is no guarantee that these are well-formed!); this is a pointer to 854 * either the beacon_ies or proberesp_ies depending on whether Probe 855 * Response frame has been received 856 * @len_information_elements: total length of the information elements 857 * @beacon_ies: the information elements from the last Beacon frame 858 * @len_beacon_ies: total length of the beacon_ies 859 * @proberesp_ies: the information elements from the last Probe Response frame 860 * @len_proberesp_ies: total length of the proberesp_ies 861 * @signal: signal strength value (type depends on the wiphy's signal_type) 862 * @free_priv: function pointer to free private data 863 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 864 */ 865 struct cfg80211_bss { 866 struct ieee80211_channel *channel; 867 868 u8 bssid[ETH_ALEN]; 869 u64 tsf; 870 u16 beacon_interval; 871 u16 capability; 872 u8 *information_elements; 873 size_t len_information_elements; 874 u8 *beacon_ies; 875 size_t len_beacon_ies; 876 u8 *proberesp_ies; 877 size_t len_proberesp_ies; 878 879 s32 signal; 880 881 void (*free_priv)(struct cfg80211_bss *bss); 882 u8 priv[0] __attribute__((__aligned__(sizeof(void *)))); 883 }; 884 885 /** 886 * ieee80211_bss_get_ie - find IE with given ID 887 * @bss: the bss to search 888 * @ie: the IE ID 889 * Returns %NULL if not found. 890 */ 891 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 892 893 894 /** 895 * struct cfg80211_crypto_settings - Crypto settings 896 * @wpa_versions: indicates which, if any, WPA versions are enabled 897 * (from enum nl80211_wpa_versions) 898 * @cipher_group: group key cipher suite (or 0 if unset) 899 * @n_ciphers_pairwise: number of AP supported unicast ciphers 900 * @ciphers_pairwise: unicast key cipher suites 901 * @n_akm_suites: number of AKM suites 902 * @akm_suites: AKM suites 903 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 904 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 905 * required to assume that the port is unauthorized until authorized by 906 * user space. Otherwise, port is marked authorized by default. 907 * @control_port_ethertype: the control port protocol that should be 908 * allowed through even on unauthorized ports 909 * @control_port_no_encrypt: TRUE to prevent encryption of control port 910 * protocol frames. 911 */ 912 struct cfg80211_crypto_settings { 913 u32 wpa_versions; 914 u32 cipher_group; 915 int n_ciphers_pairwise; 916 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 917 int n_akm_suites; 918 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 919 bool control_port; 920 __be16 control_port_ethertype; 921 bool control_port_no_encrypt; 922 }; 923 924 /** 925 * struct cfg80211_auth_request - Authentication request data 926 * 927 * This structure provides information needed to complete IEEE 802.11 928 * authentication. 929 * 930 * @bss: The BSS to authenticate with. 931 * @auth_type: Authentication type (algorithm) 932 * @ie: Extra IEs to add to Authentication frame or %NULL 933 * @ie_len: Length of ie buffer in octets 934 * @key_len: length of WEP key for shared key authentication 935 * @key_idx: index of WEP key for shared key authentication 936 * @key: WEP key for shared key authentication 937 * @local_state_change: This is a request for a local state only, i.e., no 938 * Authentication frame is to be transmitted and authentication state is 939 * to be changed without having to wait for a response from the peer STA 940 * (AP). 941 */ 942 struct cfg80211_auth_request { 943 struct cfg80211_bss *bss; 944 const u8 *ie; 945 size_t ie_len; 946 enum nl80211_auth_type auth_type; 947 const u8 *key; 948 u8 key_len, key_idx; 949 bool local_state_change; 950 }; 951 952 /** 953 * struct cfg80211_assoc_request - (Re)Association request data 954 * 955 * This structure provides information needed to complete IEEE 802.11 956 * (re)association. 957 * @bss: The BSS to associate with. 958 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 959 * @ie_len: Length of ie buffer in octets 960 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 961 * @crypto: crypto settings 962 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 963 */ 964 struct cfg80211_assoc_request { 965 struct cfg80211_bss *bss; 966 const u8 *ie, *prev_bssid; 967 size_t ie_len; 968 struct cfg80211_crypto_settings crypto; 969 bool use_mfp; 970 }; 971 972 /** 973 * struct cfg80211_deauth_request - Deauthentication request data 974 * 975 * This structure provides information needed to complete IEEE 802.11 976 * deauthentication. 977 * 978 * @bss: the BSS to deauthenticate from 979 * @ie: Extra IEs to add to Deauthentication frame or %NULL 980 * @ie_len: Length of ie buffer in octets 981 * @reason_code: The reason code for the deauthentication 982 * @local_state_change: This is a request for a local state only, i.e., no 983 * Deauthentication frame is to be transmitted. 984 */ 985 struct cfg80211_deauth_request { 986 struct cfg80211_bss *bss; 987 const u8 *ie; 988 size_t ie_len; 989 u16 reason_code; 990 bool local_state_change; 991 }; 992 993 /** 994 * struct cfg80211_disassoc_request - Disassociation request data 995 * 996 * This structure provides information needed to complete IEEE 802.11 997 * disassocation. 998 * 999 * @bss: the BSS to disassociate from 1000 * @ie: Extra IEs to add to Disassociation frame or %NULL 1001 * @ie_len: Length of ie buffer in octets 1002 * @reason_code: The reason code for the disassociation 1003 * @local_state_change: This is a request for a local state only, i.e., no 1004 * Disassociation frame is to be transmitted. 1005 */ 1006 struct cfg80211_disassoc_request { 1007 struct cfg80211_bss *bss; 1008 const u8 *ie; 1009 size_t ie_len; 1010 u16 reason_code; 1011 bool local_state_change; 1012 }; 1013 1014 /** 1015 * struct cfg80211_ibss_params - IBSS parameters 1016 * 1017 * This structure defines the IBSS parameters for the join_ibss() 1018 * method. 1019 * 1020 * @ssid: The SSID, will always be non-null. 1021 * @ssid_len: The length of the SSID, will always be non-zero. 1022 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1023 * search for IBSSs with a different BSSID. 1024 * @channel: The channel to use if no IBSS can be found to join. 1025 * @channel_fixed: The channel should be fixed -- do not search for 1026 * IBSSs to join on other channels. 1027 * @ie: information element(s) to include in the beacon 1028 * @ie_len: length of that 1029 * @beacon_interval: beacon interval to use 1030 * @privacy: this is a protected network, keys will be configured 1031 * after joining 1032 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1033 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1034 */ 1035 struct cfg80211_ibss_params { 1036 u8 *ssid; 1037 u8 *bssid; 1038 struct ieee80211_channel *channel; 1039 u8 *ie; 1040 u8 ssid_len, ie_len; 1041 u16 beacon_interval; 1042 u32 basic_rates; 1043 bool channel_fixed; 1044 bool privacy; 1045 int mcast_rate[IEEE80211_NUM_BANDS]; 1046 }; 1047 1048 /** 1049 * struct cfg80211_connect_params - Connection parameters 1050 * 1051 * This structure provides information needed to complete IEEE 802.11 1052 * authentication and association. 1053 * 1054 * @channel: The channel to use or %NULL if not specified (auto-select based 1055 * on scan results) 1056 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1057 * results) 1058 * @ssid: SSID 1059 * @ssid_len: Length of ssid in octets 1060 * @auth_type: Authentication type (algorithm) 1061 * @ie: IEs for association request 1062 * @ie_len: Length of assoc_ie in octets 1063 * @privacy: indicates whether privacy-enabled APs should be used 1064 * @crypto: crypto settings 1065 * @key_len: length of WEP key for shared key authentication 1066 * @key_idx: index of WEP key for shared key authentication 1067 * @key: WEP key for shared key authentication 1068 */ 1069 struct cfg80211_connect_params { 1070 struct ieee80211_channel *channel; 1071 u8 *bssid; 1072 u8 *ssid; 1073 size_t ssid_len; 1074 enum nl80211_auth_type auth_type; 1075 u8 *ie; 1076 size_t ie_len; 1077 bool privacy; 1078 struct cfg80211_crypto_settings crypto; 1079 const u8 *key; 1080 u8 key_len, key_idx; 1081 }; 1082 1083 /** 1084 * enum wiphy_params_flags - set_wiphy_params bitfield values 1085 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1086 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1087 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1088 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1089 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1090 */ 1091 enum wiphy_params_flags { 1092 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1093 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1094 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1095 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1096 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1097 }; 1098 1099 /* 1100 * cfg80211_bitrate_mask - masks for bitrate control 1101 */ 1102 struct cfg80211_bitrate_mask { 1103 struct { 1104 u32 legacy; 1105 /* TODO: add support for masking MCS rates; e.g.: */ 1106 /* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */ 1107 } control[IEEE80211_NUM_BANDS]; 1108 }; 1109 /** 1110 * struct cfg80211_pmksa - PMK Security Association 1111 * 1112 * This structure is passed to the set/del_pmksa() method for PMKSA 1113 * caching. 1114 * 1115 * @bssid: The AP's BSSID. 1116 * @pmkid: The PMK material itself. 1117 */ 1118 struct cfg80211_pmksa { 1119 u8 *bssid; 1120 u8 *pmkid; 1121 }; 1122 1123 /** 1124 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern 1125 * @mask: bitmask where to match pattern and where to ignore bytes, 1126 * one bit per byte, in same format as nl80211 1127 * @pattern: bytes to match where bitmask is 1 1128 * @pattern_len: length of pattern (in bytes) 1129 * 1130 * Internal note: @mask and @pattern are allocated in one chunk of 1131 * memory, free @mask only! 1132 */ 1133 struct cfg80211_wowlan_trig_pkt_pattern { 1134 u8 *mask, *pattern; 1135 int pattern_len; 1136 }; 1137 1138 /** 1139 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1140 * 1141 * This structure defines the enabled WoWLAN triggers for the device. 1142 * @any: wake up on any activity -- special trigger if device continues 1143 * operating as normal during suspend 1144 * @disconnect: wake up if getting disconnected 1145 * @magic_pkt: wake up on receiving magic packet 1146 * @patterns: wake up on receiving packet matching a pattern 1147 * @n_patterns: number of patterns 1148 */ 1149 struct cfg80211_wowlan { 1150 bool any, disconnect, magic_pkt; 1151 struct cfg80211_wowlan_trig_pkt_pattern *patterns; 1152 int n_patterns; 1153 }; 1154 1155 /** 1156 * struct cfg80211_ops - backend description for wireless configuration 1157 * 1158 * This struct is registered by fullmac card drivers and/or wireless stacks 1159 * in order to handle configuration requests on their interfaces. 1160 * 1161 * All callbacks except where otherwise noted should return 0 1162 * on success or a negative error code. 1163 * 1164 * All operations are currently invoked under rtnl for consistency with the 1165 * wireless extensions but this is subject to reevaluation as soon as this 1166 * code is used more widely and we have a first user without wext. 1167 * 1168 * @suspend: wiphy device needs to be suspended. The variable @wow will 1169 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 1170 * configured for the device. 1171 * @resume: wiphy device needs to be resumed 1172 * 1173 * @add_virtual_intf: create a new virtual interface with the given name, 1174 * must set the struct wireless_dev's iftype. Beware: You must create 1175 * the new netdev in the wiphy's network namespace! Returns the netdev, 1176 * or an ERR_PTR. 1177 * 1178 * @del_virtual_intf: remove the virtual interface determined by ifindex. 1179 * 1180 * @change_virtual_intf: change type/configuration of virtual interface, 1181 * keep the struct wireless_dev's iftype updated. 1182 * 1183 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 1184 * when adding a group key. 1185 * 1186 * @get_key: get information about the key with the given parameters. 1187 * @mac_addr will be %NULL when requesting information for a group 1188 * key. All pointers given to the @callback function need not be valid 1189 * after it returns. This function should return an error if it is 1190 * not possible to retrieve the key, -ENOENT if it doesn't exist. 1191 * 1192 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 1193 * and @key_index, return -ENOENT if the key doesn't exist. 1194 * 1195 * @set_default_key: set the default key on an interface 1196 * 1197 * @set_default_mgmt_key: set the default management frame key on an interface 1198 * 1199 * @add_beacon: Add a beacon with given parameters, @head, @interval 1200 * and @dtim_period will be valid, @tail is optional. 1201 * @set_beacon: Change the beacon parameters for an access point mode 1202 * interface. This should reject the call when no beacon has been 1203 * configured. 1204 * @del_beacon: Remove beacon configuration and stop sending the beacon. 1205 * 1206 * @add_station: Add a new station. 1207 * @del_station: Remove a station; @mac may be NULL to remove all stations. 1208 * @change_station: Modify a given station. 1209 * @get_station: get station information for the station identified by @mac 1210 * @dump_station: dump station callback -- resume dump at index @idx 1211 * 1212 * @add_mpath: add a fixed mesh path 1213 * @del_mpath: delete a given mesh path 1214 * @change_mpath: change a given mesh path 1215 * @get_mpath: get a mesh path for the given parameters 1216 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 1217 * @join_mesh: join the mesh network with the specified parameters 1218 * @leave_mesh: leave the current mesh network 1219 * 1220 * @get_mesh_config: Get the current mesh configuration 1221 * 1222 * @update_mesh_config: Update mesh parameters on a running mesh. 1223 * The mask is a bitfield which tells us which parameters to 1224 * set, and which to leave alone. 1225 * 1226 * @change_bss: Modify parameters for a given BSS. 1227 * 1228 * @set_txq_params: Set TX queue parameters 1229 * 1230 * @set_channel: Set channel for a given wireless interface. Some devices 1231 * may support multi-channel operation (by channel hopping) so cfg80211 1232 * doesn't verify much. Note, however, that the passed netdev may be 1233 * %NULL as well if the user requested changing the channel for the 1234 * device itself, or for a monitor interface. 1235 * 1236 * @scan: Request to do a scan. If returning zero, the scan request is given 1237 * the driver, and will be valid until passed to cfg80211_scan_done(). 1238 * For scan results, call cfg80211_inform_bss(); you can call this outside 1239 * the scan/scan_done bracket too. 1240 * 1241 * @auth: Request to authenticate with the specified peer 1242 * @assoc: Request to (re)associate with the specified peer 1243 * @deauth: Request to deauthenticate from the specified peer 1244 * @disassoc: Request to disassociate from the specified peer 1245 * 1246 * @connect: Connect to the ESS with the specified parameters. When connected, 1247 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 1248 * If the connection fails for some reason, call cfg80211_connect_result() 1249 * with the status from the AP. 1250 * @disconnect: Disconnect from the BSS/ESS. 1251 * 1252 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 1253 * cfg80211_ibss_joined(), also call that function when changing BSSID due 1254 * to a merge. 1255 * @leave_ibss: Leave the IBSS. 1256 * 1257 * @set_wiphy_params: Notify that wiphy parameters have changed; 1258 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1259 * have changed. The actual parameter values are available in 1260 * struct wiphy. If returning an error, no value should be changed. 1261 * 1262 * @set_tx_power: set the transmit power according to the parameters 1263 * @get_tx_power: store the current TX power into the dbm variable; 1264 * return 0 if successful 1265 * 1266 * @set_wds_peer: set the WDS peer for a WDS interface 1267 * 1268 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1269 * functions to adjust rfkill hw state 1270 * 1271 * @dump_survey: get site survey information. 1272 * 1273 * @remain_on_channel: Request the driver to remain awake on the specified 1274 * channel for the specified duration to complete an off-channel 1275 * operation (e.g., public action frame exchange). When the driver is 1276 * ready on the requested channel, it must indicate this with an event 1277 * notification by calling cfg80211_ready_on_channel(). 1278 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1279 * This allows the operation to be terminated prior to timeout based on 1280 * the duration value. 1281 * @mgmt_tx: Transmit a management frame. 1282 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 1283 * frame on another channel 1284 * 1285 * @testmode_cmd: run a test mode command 1286 * 1287 * @set_bitrate_mask: set the bitrate mask configuration 1288 * 1289 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 1290 * devices running firmwares capable of generating the (re) association 1291 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 1292 * @del_pmksa: Delete a cached PMKID. 1293 * @flush_pmksa: Flush all cached PMKIDs. 1294 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 1295 * allows the driver to adjust the dynamic ps timeout value. 1296 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 1297 * @sched_scan_start: Tell the driver to start a scheduled scan. 1298 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled 1299 * scan. The driver_initiated flag specifies whether the driver 1300 * itself has informed that the scan has stopped. 1301 * 1302 * @mgmt_frame_register: Notify driver that a management frame type was 1303 * registered. Note that this callback may not sleep, and cannot run 1304 * concurrently with itself. 1305 * 1306 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 1307 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 1308 * reject TX/RX mask combinations they cannot support by returning -EINVAL 1309 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 1310 * 1311 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 1312 * 1313 * @set_ringparam: Set tx and rx ring sizes. 1314 * 1315 * @get_ringparam: Get tx and rx ring current and maximum sizes. 1316 */ 1317 struct cfg80211_ops { 1318 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 1319 int (*resume)(struct wiphy *wiphy); 1320 1321 struct net_device * (*add_virtual_intf)(struct wiphy *wiphy, 1322 char *name, 1323 enum nl80211_iftype type, 1324 u32 *flags, 1325 struct vif_params *params); 1326 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev); 1327 int (*change_virtual_intf)(struct wiphy *wiphy, 1328 struct net_device *dev, 1329 enum nl80211_iftype type, u32 *flags, 1330 struct vif_params *params); 1331 1332 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 1333 u8 key_index, bool pairwise, const u8 *mac_addr, 1334 struct key_params *params); 1335 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 1336 u8 key_index, bool pairwise, const u8 *mac_addr, 1337 void *cookie, 1338 void (*callback)(void *cookie, struct key_params*)); 1339 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 1340 u8 key_index, bool pairwise, const u8 *mac_addr); 1341 int (*set_default_key)(struct wiphy *wiphy, 1342 struct net_device *netdev, 1343 u8 key_index, bool unicast, bool multicast); 1344 int (*set_default_mgmt_key)(struct wiphy *wiphy, 1345 struct net_device *netdev, 1346 u8 key_index); 1347 1348 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev, 1349 struct beacon_parameters *info); 1350 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev, 1351 struct beacon_parameters *info); 1352 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev); 1353 1354 1355 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 1356 u8 *mac, struct station_parameters *params); 1357 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 1358 u8 *mac); 1359 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 1360 u8 *mac, struct station_parameters *params); 1361 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 1362 u8 *mac, struct station_info *sinfo); 1363 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 1364 int idx, u8 *mac, struct station_info *sinfo); 1365 1366 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 1367 u8 *dst, u8 *next_hop); 1368 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 1369 u8 *dst); 1370 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 1371 u8 *dst, u8 *next_hop); 1372 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 1373 u8 *dst, u8 *next_hop, 1374 struct mpath_info *pinfo); 1375 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 1376 int idx, u8 *dst, u8 *next_hop, 1377 struct mpath_info *pinfo); 1378 int (*get_mesh_config)(struct wiphy *wiphy, 1379 struct net_device *dev, 1380 struct mesh_config *conf); 1381 int (*update_mesh_config)(struct wiphy *wiphy, 1382 struct net_device *dev, u32 mask, 1383 const struct mesh_config *nconf); 1384 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 1385 const struct mesh_config *conf, 1386 const struct mesh_setup *setup); 1387 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 1388 1389 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 1390 struct bss_parameters *params); 1391 1392 int (*set_txq_params)(struct wiphy *wiphy, 1393 struct ieee80211_txq_params *params); 1394 1395 int (*set_channel)(struct wiphy *wiphy, struct net_device *dev, 1396 struct ieee80211_channel *chan, 1397 enum nl80211_channel_type channel_type); 1398 1399 int (*scan)(struct wiphy *wiphy, struct net_device *dev, 1400 struct cfg80211_scan_request *request); 1401 1402 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 1403 struct cfg80211_auth_request *req); 1404 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 1405 struct cfg80211_assoc_request *req); 1406 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 1407 struct cfg80211_deauth_request *req, 1408 void *cookie); 1409 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 1410 struct cfg80211_disassoc_request *req, 1411 void *cookie); 1412 1413 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 1414 struct cfg80211_connect_params *sme); 1415 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 1416 u16 reason_code); 1417 1418 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 1419 struct cfg80211_ibss_params *params); 1420 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 1421 1422 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 1423 1424 int (*set_tx_power)(struct wiphy *wiphy, 1425 enum nl80211_tx_power_setting type, int mbm); 1426 int (*get_tx_power)(struct wiphy *wiphy, int *dbm); 1427 1428 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 1429 const u8 *addr); 1430 1431 void (*rfkill_poll)(struct wiphy *wiphy); 1432 1433 #ifdef CONFIG_NL80211_TESTMODE 1434 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 1435 #endif 1436 1437 int (*set_bitrate_mask)(struct wiphy *wiphy, 1438 struct net_device *dev, 1439 const u8 *peer, 1440 const struct cfg80211_bitrate_mask *mask); 1441 1442 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 1443 int idx, struct survey_info *info); 1444 1445 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1446 struct cfg80211_pmksa *pmksa); 1447 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1448 struct cfg80211_pmksa *pmksa); 1449 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 1450 1451 int (*remain_on_channel)(struct wiphy *wiphy, 1452 struct net_device *dev, 1453 struct ieee80211_channel *chan, 1454 enum nl80211_channel_type channel_type, 1455 unsigned int duration, 1456 u64 *cookie); 1457 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 1458 struct net_device *dev, 1459 u64 cookie); 1460 1461 int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev, 1462 struct ieee80211_channel *chan, bool offchan, 1463 enum nl80211_channel_type channel_type, 1464 bool channel_type_valid, unsigned int wait, 1465 const u8 *buf, size_t len, u64 *cookie); 1466 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 1467 struct net_device *dev, 1468 u64 cookie); 1469 1470 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 1471 bool enabled, int timeout); 1472 1473 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 1474 struct net_device *dev, 1475 s32 rssi_thold, u32 rssi_hyst); 1476 1477 void (*mgmt_frame_register)(struct wiphy *wiphy, 1478 struct net_device *dev, 1479 u16 frame_type, bool reg); 1480 1481 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 1482 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 1483 1484 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); 1485 void (*get_ringparam)(struct wiphy *wiphy, 1486 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); 1487 1488 int (*sched_scan_start)(struct wiphy *wiphy, 1489 struct net_device *dev, 1490 struct cfg80211_sched_scan_request *request); 1491 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 1492 }; 1493 1494 /* 1495 * wireless hardware and networking interfaces structures 1496 * and registration/helper functions 1497 */ 1498 1499 /** 1500 * enum wiphy_flags - wiphy capability flags 1501 * 1502 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 1503 * has its own custom regulatory domain and cannot identify the 1504 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 1505 * we will disregard the first regulatory hint (when the 1506 * initiator is %REGDOM_SET_BY_CORE). 1507 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 1508 * ignore regulatory domain settings until it gets its own regulatory 1509 * domain via its regulatory_hint() unless the regulatory hint is 1510 * from a country IE. After its gets its own regulatory domain it will 1511 * only allow further regulatory domain settings to further enhance 1512 * compliance. For example if channel 13 and 14 are disabled by this 1513 * regulatory domain no user regulatory domain can enable these channels 1514 * at a later time. This can be used for devices which do not have 1515 * calibration information guaranteed for frequencies or settings 1516 * outside of its regulatory domain. 1517 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 1518 * that passive scan flags and beaconing flags may not be lifted by 1519 * cfg80211 due to regulatory beacon hints. For more information on beacon 1520 * hints read the documenation for regulatory_hint_found_beacon() 1521 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 1522 * wiphy at all 1523 * @WIPHY_FLAG_ENFORCE_COMBINATIONS: Set this flag to enforce interface 1524 * combinations for this device. This flag is used for backward 1525 * compatibility only until all drivers advertise combinations and 1526 * they will always be enforced. 1527 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 1528 * by default -- this flag will be set depending on the kernel's default 1529 * on wiphy_new(), but can be changed by the driver if it has a good 1530 * reason to override the default 1531 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 1532 * on a VLAN interface) 1533 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 1534 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 1535 * control port protocol ethertype. The device also honours the 1536 * control_port_no_encrypt flag. 1537 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 1538 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 1539 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 1540 * @WIPHY_FLAG_SCHED_SCAN: The device supports scheduled scans. 1541 */ 1542 enum wiphy_flags { 1543 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 1544 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 1545 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 1546 WIPHY_FLAG_NETNS_OK = BIT(3), 1547 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 1548 WIPHY_FLAG_4ADDR_AP = BIT(5), 1549 WIPHY_FLAG_4ADDR_STATION = BIT(6), 1550 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 1551 WIPHY_FLAG_IBSS_RSN = BIT(8), 1552 WIPHY_FLAG_MESH_AUTH = BIT(10), 1553 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 1554 WIPHY_FLAG_ENFORCE_COMBINATIONS = BIT(12), 1555 }; 1556 1557 /** 1558 * struct ieee80211_iface_limit - limit on certain interface types 1559 * @max: maximum number of interfaces of these types 1560 * @types: interface types (bits) 1561 */ 1562 struct ieee80211_iface_limit { 1563 u16 max; 1564 u16 types; 1565 }; 1566 1567 /** 1568 * struct ieee80211_iface_combination - possible interface combination 1569 * @limits: limits for the given interface types 1570 * @n_limits: number of limitations 1571 * @num_different_channels: can use up to this many different channels 1572 * @max_interfaces: maximum number of interfaces in total allowed in this 1573 * group 1574 * @beacon_int_infra_match: In this combination, the beacon intervals 1575 * between infrastructure and AP types must match. This is required 1576 * only in special cases. 1577 * 1578 * These examples can be expressed as follows: 1579 * 1580 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 1581 * 1582 * struct ieee80211_iface_limit limits1[] = { 1583 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1584 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 1585 * }; 1586 * struct ieee80211_iface_combination combination1 = { 1587 * .limits = limits1, 1588 * .n_limits = ARRAY_SIZE(limits1), 1589 * .max_interfaces = 2, 1590 * .beacon_int_infra_match = true, 1591 * }; 1592 * 1593 * 1594 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 1595 * 1596 * struct ieee80211_iface_limit limits2[] = { 1597 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 1598 * BIT(NL80211_IFTYPE_P2P_GO), }, 1599 * }; 1600 * struct ieee80211_iface_combination combination2 = { 1601 * .limits = limits2, 1602 * .n_limits = ARRAY_SIZE(limits2), 1603 * .max_interfaces = 8, 1604 * .num_different_channels = 1, 1605 * }; 1606 * 1607 * 1608 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 1609 * This allows for an infrastructure connection and three P2P connections. 1610 * 1611 * struct ieee80211_iface_limit limits3[] = { 1612 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1613 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 1614 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 1615 * }; 1616 * struct ieee80211_iface_combination combination3 = { 1617 * .limits = limits3, 1618 * .n_limits = ARRAY_SIZE(limits3), 1619 * .max_interfaces = 4, 1620 * .num_different_channels = 2, 1621 * }; 1622 */ 1623 struct ieee80211_iface_combination { 1624 const struct ieee80211_iface_limit *limits; 1625 u32 num_different_channels; 1626 u16 max_interfaces; 1627 u8 n_limits; 1628 bool beacon_int_infra_match; 1629 }; 1630 1631 struct mac_address { 1632 u8 addr[ETH_ALEN]; 1633 }; 1634 1635 struct ieee80211_txrx_stypes { 1636 u16 tx, rx; 1637 }; 1638 1639 /** 1640 * enum wiphy_wowlan_support_flags - WoWLAN support flags 1641 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 1642 * trigger that keeps the device operating as-is and 1643 * wakes up the host on any activity, for example a 1644 * received packet that passed filtering; note that the 1645 * packet should be preserved in that case 1646 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 1647 * (see nl80211.h) 1648 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 1649 */ 1650 enum wiphy_wowlan_support_flags { 1651 WIPHY_WOWLAN_ANY = BIT(0), 1652 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 1653 WIPHY_WOWLAN_DISCONNECT = BIT(2), 1654 }; 1655 1656 /** 1657 * struct wiphy_wowlan_support - WoWLAN support data 1658 * @flags: see &enum wiphy_wowlan_support_flags 1659 * @n_patterns: number of supported wakeup patterns 1660 * (see nl80211.h for the pattern definition) 1661 * @pattern_max_len: maximum length of each pattern 1662 * @pattern_min_len: minimum length of each pattern 1663 */ 1664 struct wiphy_wowlan_support { 1665 u32 flags; 1666 int n_patterns; 1667 int pattern_max_len; 1668 int pattern_min_len; 1669 }; 1670 1671 /** 1672 * struct wiphy - wireless hardware description 1673 * @reg_notifier: the driver's regulatory notification callback, 1674 * note that if your driver uses wiphy_apply_custom_regulatory() 1675 * the reg_notifier's request can be passed as NULL 1676 * @regd: the driver's regulatory domain, if one was requested via 1677 * the regulatory_hint() API. This can be used by the driver 1678 * on the reg_notifier() if it chooses to ignore future 1679 * regulatory domain changes caused by other drivers. 1680 * @signal_type: signal type reported in &struct cfg80211_bss. 1681 * @cipher_suites: supported cipher suites 1682 * @n_cipher_suites: number of supported cipher suites 1683 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 1684 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 1685 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 1686 * -1 = fragmentation disabled, only odd values >= 256 used 1687 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 1688 * @_net: the network namespace this wiphy currently lives in 1689 * @perm_addr: permanent MAC address of this device 1690 * @addr_mask: If the device supports multiple MAC addresses by masking, 1691 * set this to a mask with variable bits set to 1, e.g. if the last 1692 * four bits are variable then set it to 00:...:00:0f. The actual 1693 * variable bits shall be determined by the interfaces added, with 1694 * interfaces not matching the mask being rejected to be brought up. 1695 * @n_addresses: number of addresses in @addresses. 1696 * @addresses: If the device has more than one address, set this pointer 1697 * to a list of addresses (6 bytes each). The first one will be used 1698 * by default for perm_addr. In this case, the mask should be set to 1699 * all-zeroes. In this case it is assumed that the device can handle 1700 * the same number of arbitrary MAC addresses. 1701 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 1702 * automatically on wiphy renames 1703 * @dev: (virtual) struct device for this wiphy 1704 * @wext: wireless extension handlers 1705 * @priv: driver private data (sized according to wiphy_new() parameter) 1706 * @interface_modes: bitmask of interfaces types valid for this wiphy, 1707 * must be set by driver 1708 * @iface_combinations: Valid interface combinations array, should not 1709 * list single interface types. 1710 * @n_iface_combinations: number of entries in @iface_combinations array. 1711 * @software_iftypes: bitmask of software interface types, these are not 1712 * subject to any restrictions since they are purely managed in SW. 1713 * @flags: wiphy flags, see &enum wiphy_flags 1714 * @bss_priv_size: each BSS struct has private data allocated with it, 1715 * this variable determines its size 1716 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 1717 * any given scan 1718 * @max_scan_ie_len: maximum length of user-controlled IEs device can 1719 * add to probe request frames transmitted during a scan, must not 1720 * include fixed IEs like supported rates 1721 * @coverage_class: current coverage class 1722 * @fw_version: firmware version for ethtool reporting 1723 * @hw_version: hardware version for ethtool reporting 1724 * @max_num_pmkids: maximum number of PMKIDs supported by device 1725 * @privid: a pointer that drivers can use to identify if an arbitrary 1726 * wiphy is theirs, e.g. in global notifiers 1727 * @bands: information about bands/channels supported by this device 1728 * 1729 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 1730 * transmitted through nl80211, points to an array indexed by interface 1731 * type 1732 * 1733 * @available_antennas_tx: bitmap of antennas which are available to be 1734 * configured as TX antennas. Antenna configuration commands will be 1735 * rejected unless this or @available_antennas_rx is set. 1736 * 1737 * @available_antennas_rx: bitmap of antennas which are available to be 1738 * configured as RX antennas. Antenna configuration commands will be 1739 * rejected unless this or @available_antennas_tx is set. 1740 * 1741 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 1742 * may request, if implemented. 1743 * 1744 * @wowlan: WoWLAN support information 1745 */ 1746 struct wiphy { 1747 /* assign these fields before you register the wiphy */ 1748 1749 /* permanent MAC address(es) */ 1750 u8 perm_addr[ETH_ALEN]; 1751 u8 addr_mask[ETH_ALEN]; 1752 1753 struct mac_address *addresses; 1754 1755 const struct ieee80211_txrx_stypes *mgmt_stypes; 1756 1757 const struct ieee80211_iface_combination *iface_combinations; 1758 int n_iface_combinations; 1759 u16 software_iftypes; 1760 1761 u16 n_addresses; 1762 1763 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 1764 u16 interface_modes; 1765 1766 u32 flags; 1767 1768 enum cfg80211_signal_type signal_type; 1769 1770 int bss_priv_size; 1771 u8 max_scan_ssids; 1772 u16 max_scan_ie_len; 1773 1774 int n_cipher_suites; 1775 const u32 *cipher_suites; 1776 1777 u8 retry_short; 1778 u8 retry_long; 1779 u32 frag_threshold; 1780 u32 rts_threshold; 1781 u8 coverage_class; 1782 1783 char fw_version[ETHTOOL_BUSINFO_LEN]; 1784 u32 hw_version; 1785 1786 struct wiphy_wowlan_support wowlan; 1787 1788 u16 max_remain_on_channel_duration; 1789 1790 u8 max_num_pmkids; 1791 1792 u32 available_antennas_tx; 1793 u32 available_antennas_rx; 1794 1795 /* If multiple wiphys are registered and you're handed e.g. 1796 * a regular netdev with assigned ieee80211_ptr, you won't 1797 * know whether it points to a wiphy your driver has registered 1798 * or not. Assign this to something global to your driver to 1799 * help determine whether you own this wiphy or not. */ 1800 const void *privid; 1801 1802 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 1803 1804 /* Lets us get back the wiphy on the callback */ 1805 int (*reg_notifier)(struct wiphy *wiphy, 1806 struct regulatory_request *request); 1807 1808 /* fields below are read-only, assigned by cfg80211 */ 1809 1810 const struct ieee80211_regdomain *regd; 1811 1812 /* the item in /sys/class/ieee80211/ points to this, 1813 * you need use set_wiphy_dev() (see below) */ 1814 struct device dev; 1815 1816 /* dir in debugfs: ieee80211/<wiphyname> */ 1817 struct dentry *debugfsdir; 1818 1819 #ifdef CONFIG_NET_NS 1820 /* the network namespace this phy lives in currently */ 1821 struct net *_net; 1822 #endif 1823 1824 #ifdef CONFIG_CFG80211_WEXT 1825 const struct iw_handler_def *wext; 1826 #endif 1827 1828 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); 1829 }; 1830 1831 static inline struct net *wiphy_net(struct wiphy *wiphy) 1832 { 1833 return read_pnet(&wiphy->_net); 1834 } 1835 1836 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 1837 { 1838 write_pnet(&wiphy->_net, net); 1839 } 1840 1841 /** 1842 * wiphy_priv - return priv from wiphy 1843 * 1844 * @wiphy: the wiphy whose priv pointer to return 1845 */ 1846 static inline void *wiphy_priv(struct wiphy *wiphy) 1847 { 1848 BUG_ON(!wiphy); 1849 return &wiphy->priv; 1850 } 1851 1852 /** 1853 * priv_to_wiphy - return the wiphy containing the priv 1854 * 1855 * @priv: a pointer previously returned by wiphy_priv 1856 */ 1857 static inline struct wiphy *priv_to_wiphy(void *priv) 1858 { 1859 BUG_ON(!priv); 1860 return container_of(priv, struct wiphy, priv); 1861 } 1862 1863 /** 1864 * set_wiphy_dev - set device pointer for wiphy 1865 * 1866 * @wiphy: The wiphy whose device to bind 1867 * @dev: The device to parent it to 1868 */ 1869 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 1870 { 1871 wiphy->dev.parent = dev; 1872 } 1873 1874 /** 1875 * wiphy_dev - get wiphy dev pointer 1876 * 1877 * @wiphy: The wiphy whose device struct to look up 1878 */ 1879 static inline struct device *wiphy_dev(struct wiphy *wiphy) 1880 { 1881 return wiphy->dev.parent; 1882 } 1883 1884 /** 1885 * wiphy_name - get wiphy name 1886 * 1887 * @wiphy: The wiphy whose name to return 1888 */ 1889 static inline const char *wiphy_name(const struct wiphy *wiphy) 1890 { 1891 return dev_name(&wiphy->dev); 1892 } 1893 1894 /** 1895 * wiphy_new - create a new wiphy for use with cfg80211 1896 * 1897 * @ops: The configuration operations for this device 1898 * @sizeof_priv: The size of the private area to allocate 1899 * 1900 * Create a new wiphy and associate the given operations with it. 1901 * @sizeof_priv bytes are allocated for private use. 1902 * 1903 * The returned pointer must be assigned to each netdev's 1904 * ieee80211_ptr for proper operation. 1905 */ 1906 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 1907 1908 /** 1909 * wiphy_register - register a wiphy with cfg80211 1910 * 1911 * @wiphy: The wiphy to register. 1912 * 1913 * Returns a non-negative wiphy index or a negative error code. 1914 */ 1915 extern int wiphy_register(struct wiphy *wiphy); 1916 1917 /** 1918 * wiphy_unregister - deregister a wiphy from cfg80211 1919 * 1920 * @wiphy: The wiphy to unregister. 1921 * 1922 * After this call, no more requests can be made with this priv 1923 * pointer, but the call may sleep to wait for an outstanding 1924 * request that is being handled. 1925 */ 1926 extern void wiphy_unregister(struct wiphy *wiphy); 1927 1928 /** 1929 * wiphy_free - free wiphy 1930 * 1931 * @wiphy: The wiphy to free 1932 */ 1933 extern void wiphy_free(struct wiphy *wiphy); 1934 1935 /* internal structs */ 1936 struct cfg80211_conn; 1937 struct cfg80211_internal_bss; 1938 struct cfg80211_cached_keys; 1939 1940 #define MAX_AUTH_BSSES 4 1941 1942 /** 1943 * struct wireless_dev - wireless per-netdev state 1944 * 1945 * This structure must be allocated by the driver/stack 1946 * that uses the ieee80211_ptr field in struct net_device 1947 * (this is intentional so it can be allocated along with 1948 * the netdev.) 1949 * 1950 * @wiphy: pointer to hardware description 1951 * @iftype: interface type 1952 * @list: (private) Used to collect the interfaces 1953 * @netdev: (private) Used to reference back to the netdev 1954 * @current_bss: (private) Used by the internal configuration code 1955 * @channel: (private) Used by the internal configuration code to track 1956 * user-set AP, monitor and WDS channels for wireless extensions 1957 * @bssid: (private) Used by the internal configuration code 1958 * @ssid: (private) Used by the internal configuration code 1959 * @ssid_len: (private) Used by the internal configuration code 1960 * @mesh_id_len: (private) Used by the internal configuration code 1961 * @mesh_id_up_len: (private) Used by the internal configuration code 1962 * @wext: (private) Used by the internal wireless extensions compat code 1963 * @use_4addr: indicates 4addr mode is used on this interface, must be 1964 * set by driver (if supported) on add_interface BEFORE registering the 1965 * netdev and may otherwise be used by driver read-only, will be update 1966 * by cfg80211 on change_interface 1967 * @mgmt_registrations: list of registrations for management frames 1968 * @mgmt_registrations_lock: lock for the list 1969 * @mtx: mutex used to lock data in this struct 1970 * @cleanup_work: work struct used for cleanup that can't be done directly 1971 * @beacon_interval: beacon interval used on this device for transmitting 1972 * beacons, 0 when not valid 1973 */ 1974 struct wireless_dev { 1975 struct wiphy *wiphy; 1976 enum nl80211_iftype iftype; 1977 1978 /* the remainder of this struct should be private to cfg80211 */ 1979 struct list_head list; 1980 struct net_device *netdev; 1981 1982 struct list_head mgmt_registrations; 1983 spinlock_t mgmt_registrations_lock; 1984 1985 struct mutex mtx; 1986 1987 struct work_struct cleanup_work; 1988 1989 bool use_4addr; 1990 1991 /* currently used for IBSS and SME - might be rearranged later */ 1992 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1993 u8 ssid_len, mesh_id_len, mesh_id_up_len; 1994 enum { 1995 CFG80211_SME_IDLE, 1996 CFG80211_SME_CONNECTING, 1997 CFG80211_SME_CONNECTED, 1998 } sme_state; 1999 struct cfg80211_conn *conn; 2000 struct cfg80211_cached_keys *connect_keys; 2001 2002 struct list_head event_list; 2003 spinlock_t event_lock; 2004 2005 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES]; 2006 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES]; 2007 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 2008 struct ieee80211_channel *channel; 2009 2010 bool ps; 2011 int ps_timeout; 2012 2013 int beacon_interval; 2014 2015 #ifdef CONFIG_CFG80211_WEXT 2016 /* wext data */ 2017 struct { 2018 struct cfg80211_ibss_params ibss; 2019 struct cfg80211_connect_params connect; 2020 struct cfg80211_cached_keys *keys; 2021 u8 *ie; 2022 size_t ie_len; 2023 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 2024 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2025 s8 default_key, default_mgmt_key; 2026 bool prev_bssid_valid; 2027 } wext; 2028 #endif 2029 }; 2030 2031 /** 2032 * wdev_priv - return wiphy priv from wireless_dev 2033 * 2034 * @wdev: The wireless device whose wiphy's priv pointer to return 2035 */ 2036 static inline void *wdev_priv(struct wireless_dev *wdev) 2037 { 2038 BUG_ON(!wdev); 2039 return wiphy_priv(wdev->wiphy); 2040 } 2041 2042 /** 2043 * DOC: Utility functions 2044 * 2045 * cfg80211 offers a number of utility functions that can be useful. 2046 */ 2047 2048 /** 2049 * ieee80211_channel_to_frequency - convert channel number to frequency 2050 * @chan: channel number 2051 * @band: band, necessary due to channel number overlap 2052 */ 2053 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 2054 2055 /** 2056 * ieee80211_frequency_to_channel - convert frequency to channel number 2057 * @freq: center frequency 2058 */ 2059 extern int ieee80211_frequency_to_channel(int freq); 2060 2061 /* 2062 * Name indirection necessary because the ieee80211 code also has 2063 * a function named "ieee80211_get_channel", so if you include 2064 * cfg80211's header file you get cfg80211's version, if you try 2065 * to include both header files you'll (rightfully!) get a symbol 2066 * clash. 2067 */ 2068 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 2069 int freq); 2070 /** 2071 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 2072 * @wiphy: the struct wiphy to get the channel for 2073 * @freq: the center frequency of the channel 2074 */ 2075 static inline struct ieee80211_channel * 2076 ieee80211_get_channel(struct wiphy *wiphy, int freq) 2077 { 2078 return __ieee80211_get_channel(wiphy, freq); 2079 } 2080 2081 /** 2082 * ieee80211_get_response_rate - get basic rate for a given rate 2083 * 2084 * @sband: the band to look for rates in 2085 * @basic_rates: bitmap of basic rates 2086 * @bitrate: the bitrate for which to find the basic rate 2087 * 2088 * This function returns the basic rate corresponding to a given 2089 * bitrate, that is the next lower bitrate contained in the basic 2090 * rate map, which is, for this function, given as a bitmap of 2091 * indices of rates in the band's bitrate table. 2092 */ 2093 struct ieee80211_rate * 2094 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 2095 u32 basic_rates, int bitrate); 2096 2097 /* 2098 * Radiotap parsing functions -- for controlled injection support 2099 * 2100 * Implemented in net/wireless/radiotap.c 2101 * Documentation in Documentation/networking/radiotap-headers.txt 2102 */ 2103 2104 struct radiotap_align_size { 2105 uint8_t align:4, size:4; 2106 }; 2107 2108 struct ieee80211_radiotap_namespace { 2109 const struct radiotap_align_size *align_size; 2110 int n_bits; 2111 uint32_t oui; 2112 uint8_t subns; 2113 }; 2114 2115 struct ieee80211_radiotap_vendor_namespaces { 2116 const struct ieee80211_radiotap_namespace *ns; 2117 int n_ns; 2118 }; 2119 2120 /** 2121 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 2122 * @this_arg_index: index of current arg, valid after each successful call 2123 * to ieee80211_radiotap_iterator_next() 2124 * @this_arg: pointer to current radiotap arg; it is valid after each 2125 * call to ieee80211_radiotap_iterator_next() but also after 2126 * ieee80211_radiotap_iterator_init() where it will point to 2127 * the beginning of the actual data portion 2128 * @this_arg_size: length of the current arg, for convenience 2129 * @current_namespace: pointer to the current namespace definition 2130 * (or internally %NULL if the current namespace is unknown) 2131 * @is_radiotap_ns: indicates whether the current namespace is the default 2132 * radiotap namespace or not 2133 * 2134 * @_rtheader: pointer to the radiotap header we are walking through 2135 * @_max_length: length of radiotap header in cpu byte ordering 2136 * @_arg_index: next argument index 2137 * @_arg: next argument pointer 2138 * @_next_bitmap: internal pointer to next present u32 2139 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 2140 * @_vns: vendor namespace definitions 2141 * @_next_ns_data: beginning of the next namespace's data 2142 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 2143 * next bitmap word 2144 * 2145 * Describes the radiotap parser state. Fields prefixed with an underscore 2146 * must not be used by users of the parser, only by the parser internally. 2147 */ 2148 2149 struct ieee80211_radiotap_iterator { 2150 struct ieee80211_radiotap_header *_rtheader; 2151 const struct ieee80211_radiotap_vendor_namespaces *_vns; 2152 const struct ieee80211_radiotap_namespace *current_namespace; 2153 2154 unsigned char *_arg, *_next_ns_data; 2155 __le32 *_next_bitmap; 2156 2157 unsigned char *this_arg; 2158 int this_arg_index; 2159 int this_arg_size; 2160 2161 int is_radiotap_ns; 2162 2163 int _max_length; 2164 int _arg_index; 2165 uint32_t _bitmap_shifter; 2166 int _reset_on_ext; 2167 }; 2168 2169 extern int ieee80211_radiotap_iterator_init( 2170 struct ieee80211_radiotap_iterator *iterator, 2171 struct ieee80211_radiotap_header *radiotap_header, 2172 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 2173 2174 extern int ieee80211_radiotap_iterator_next( 2175 struct ieee80211_radiotap_iterator *iterator); 2176 2177 2178 extern const unsigned char rfc1042_header[6]; 2179 extern const unsigned char bridge_tunnel_header[6]; 2180 2181 /** 2182 * ieee80211_get_hdrlen_from_skb - get header length from data 2183 * 2184 * Given an skb with a raw 802.11 header at the data pointer this function 2185 * returns the 802.11 header length in bytes (not including encryption 2186 * headers). If the data in the sk_buff is too short to contain a valid 802.11 2187 * header the function returns 0. 2188 * 2189 * @skb: the frame 2190 */ 2191 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 2192 2193 /** 2194 * ieee80211_hdrlen - get header length in bytes from frame control 2195 * @fc: frame control field in little-endian format 2196 */ 2197 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 2198 2199 /** 2200 * DOC: Data path helpers 2201 * 2202 * In addition to generic utilities, cfg80211 also offers 2203 * functions that help implement the data path for devices 2204 * that do not do the 802.11/802.3 conversion on the device. 2205 */ 2206 2207 /** 2208 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 2209 * @skb: the 802.11 data frame 2210 * @addr: the device MAC address 2211 * @iftype: the virtual interface type 2212 */ 2213 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 2214 enum nl80211_iftype iftype); 2215 2216 /** 2217 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 2218 * @skb: the 802.3 frame 2219 * @addr: the device MAC address 2220 * @iftype: the virtual interface type 2221 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 2222 * @qos: build 802.11 QoS data frame 2223 */ 2224 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 2225 enum nl80211_iftype iftype, u8 *bssid, bool qos); 2226 2227 /** 2228 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 2229 * 2230 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 2231 * 802.3 frames. The @list will be empty if the decode fails. The 2232 * @skb is consumed after the function returns. 2233 * 2234 * @skb: The input IEEE 802.11n A-MSDU frame. 2235 * @list: The output list of 802.3 frames. It must be allocated and 2236 * initialized by by the caller. 2237 * @addr: The device MAC address. 2238 * @iftype: The device interface type. 2239 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 2240 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 2241 */ 2242 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 2243 const u8 *addr, enum nl80211_iftype iftype, 2244 const unsigned int extra_headroom, 2245 bool has_80211_header); 2246 2247 /** 2248 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 2249 * @skb: the data frame 2250 */ 2251 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 2252 2253 /** 2254 * cfg80211_find_ie - find information element in data 2255 * 2256 * @eid: element ID 2257 * @ies: data consisting of IEs 2258 * @len: length of data 2259 * 2260 * This function will return %NULL if the element ID could 2261 * not be found or if the element is invalid (claims to be 2262 * longer than the given data), or a pointer to the first byte 2263 * of the requested element, that is the byte containing the 2264 * element ID. There are no checks on the element length 2265 * other than having to fit into the given data. 2266 */ 2267 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 2268 2269 /** 2270 * DOC: Regulatory enforcement infrastructure 2271 * 2272 * TODO 2273 */ 2274 2275 /** 2276 * regulatory_hint - driver hint to the wireless core a regulatory domain 2277 * @wiphy: the wireless device giving the hint (used only for reporting 2278 * conflicts) 2279 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 2280 * should be in. If @rd is set this should be NULL. Note that if you 2281 * set this to NULL you should still set rd->alpha2 to some accepted 2282 * alpha2. 2283 * 2284 * Wireless drivers can use this function to hint to the wireless core 2285 * what it believes should be the current regulatory domain by 2286 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 2287 * domain should be in or by providing a completely build regulatory domain. 2288 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 2289 * for a regulatory domain structure for the respective country. 2290 * 2291 * The wiphy must have been registered to cfg80211 prior to this call. 2292 * For cfg80211 drivers this means you must first use wiphy_register(), 2293 * for mac80211 drivers you must first use ieee80211_register_hw(). 2294 * 2295 * Drivers should check the return value, its possible you can get 2296 * an -ENOMEM. 2297 */ 2298 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 2299 2300 /** 2301 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 2302 * @wiphy: the wireless device we want to process the regulatory domain on 2303 * @regd: the custom regulatory domain to use for this wiphy 2304 * 2305 * Drivers can sometimes have custom regulatory domains which do not apply 2306 * to a specific country. Drivers can use this to apply such custom regulatory 2307 * domains. This routine must be called prior to wiphy registration. The 2308 * custom regulatory domain will be trusted completely and as such previous 2309 * default channel settings will be disregarded. If no rule is found for a 2310 * channel on the regulatory domain the channel will be disabled. 2311 */ 2312 extern void wiphy_apply_custom_regulatory( 2313 struct wiphy *wiphy, 2314 const struct ieee80211_regdomain *regd); 2315 2316 /** 2317 * freq_reg_info - get regulatory information for the given frequency 2318 * @wiphy: the wiphy for which we want to process this rule for 2319 * @center_freq: Frequency in KHz for which we want regulatory information for 2320 * @desired_bw_khz: the desired max bandwidth you want to use per 2321 * channel. Note that this is still 20 MHz if you want to use HT40 2322 * as HT40 makes use of two channels for its 40 MHz width bandwidth. 2323 * If set to 0 we'll assume you want the standard 20 MHz. 2324 * @reg_rule: the regulatory rule which we have for this frequency 2325 * 2326 * Use this function to get the regulatory rule for a specific frequency on 2327 * a given wireless device. If the device has a specific regulatory domain 2328 * it wants to follow we respect that unless a country IE has been received 2329 * and processed already. 2330 * 2331 * Returns 0 if it was able to find a valid regulatory rule which does 2332 * apply to the given center_freq otherwise it returns non-zero. It will 2333 * also return -ERANGE if we determine the given center_freq does not even have 2334 * a regulatory rule for a frequency range in the center_freq's band. See 2335 * freq_in_rule_band() for our current definition of a band -- this is purely 2336 * subjective and right now its 802.11 specific. 2337 */ 2338 extern int freq_reg_info(struct wiphy *wiphy, 2339 u32 center_freq, 2340 u32 desired_bw_khz, 2341 const struct ieee80211_reg_rule **reg_rule); 2342 2343 /* 2344 * Temporary wext handlers & helper functions 2345 * 2346 * In the future cfg80211 will simply assign the entire wext handler 2347 * structure to netdevs it manages, but we're not there yet. 2348 */ 2349 int cfg80211_wext_giwname(struct net_device *dev, 2350 struct iw_request_info *info, 2351 char *name, char *extra); 2352 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 2353 u32 *mode, char *extra); 2354 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 2355 u32 *mode, char *extra); 2356 int cfg80211_wext_siwscan(struct net_device *dev, 2357 struct iw_request_info *info, 2358 union iwreq_data *wrqu, char *extra); 2359 int cfg80211_wext_giwscan(struct net_device *dev, 2360 struct iw_request_info *info, 2361 struct iw_point *data, char *extra); 2362 int cfg80211_wext_siwmlme(struct net_device *dev, 2363 struct iw_request_info *info, 2364 struct iw_point *data, char *extra); 2365 int cfg80211_wext_giwrange(struct net_device *dev, 2366 struct iw_request_info *info, 2367 struct iw_point *data, char *extra); 2368 int cfg80211_wext_siwgenie(struct net_device *dev, 2369 struct iw_request_info *info, 2370 struct iw_point *data, char *extra); 2371 int cfg80211_wext_siwauth(struct net_device *dev, 2372 struct iw_request_info *info, 2373 struct iw_param *data, char *extra); 2374 int cfg80211_wext_giwauth(struct net_device *dev, 2375 struct iw_request_info *info, 2376 struct iw_param *data, char *extra); 2377 2378 int cfg80211_wext_siwfreq(struct net_device *dev, 2379 struct iw_request_info *info, 2380 struct iw_freq *freq, char *extra); 2381 int cfg80211_wext_giwfreq(struct net_device *dev, 2382 struct iw_request_info *info, 2383 struct iw_freq *freq, char *extra); 2384 int cfg80211_wext_siwessid(struct net_device *dev, 2385 struct iw_request_info *info, 2386 struct iw_point *data, char *ssid); 2387 int cfg80211_wext_giwessid(struct net_device *dev, 2388 struct iw_request_info *info, 2389 struct iw_point *data, char *ssid); 2390 int cfg80211_wext_siwrate(struct net_device *dev, 2391 struct iw_request_info *info, 2392 struct iw_param *rate, char *extra); 2393 int cfg80211_wext_giwrate(struct net_device *dev, 2394 struct iw_request_info *info, 2395 struct iw_param *rate, char *extra); 2396 2397 int cfg80211_wext_siwrts(struct net_device *dev, 2398 struct iw_request_info *info, 2399 struct iw_param *rts, char *extra); 2400 int cfg80211_wext_giwrts(struct net_device *dev, 2401 struct iw_request_info *info, 2402 struct iw_param *rts, char *extra); 2403 int cfg80211_wext_siwfrag(struct net_device *dev, 2404 struct iw_request_info *info, 2405 struct iw_param *frag, char *extra); 2406 int cfg80211_wext_giwfrag(struct net_device *dev, 2407 struct iw_request_info *info, 2408 struct iw_param *frag, char *extra); 2409 int cfg80211_wext_siwretry(struct net_device *dev, 2410 struct iw_request_info *info, 2411 struct iw_param *retry, char *extra); 2412 int cfg80211_wext_giwretry(struct net_device *dev, 2413 struct iw_request_info *info, 2414 struct iw_param *retry, char *extra); 2415 int cfg80211_wext_siwencodeext(struct net_device *dev, 2416 struct iw_request_info *info, 2417 struct iw_point *erq, char *extra); 2418 int cfg80211_wext_siwencode(struct net_device *dev, 2419 struct iw_request_info *info, 2420 struct iw_point *erq, char *keybuf); 2421 int cfg80211_wext_giwencode(struct net_device *dev, 2422 struct iw_request_info *info, 2423 struct iw_point *erq, char *keybuf); 2424 int cfg80211_wext_siwtxpower(struct net_device *dev, 2425 struct iw_request_info *info, 2426 union iwreq_data *data, char *keybuf); 2427 int cfg80211_wext_giwtxpower(struct net_device *dev, 2428 struct iw_request_info *info, 2429 union iwreq_data *data, char *keybuf); 2430 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev); 2431 2432 int cfg80211_wext_siwpower(struct net_device *dev, 2433 struct iw_request_info *info, 2434 struct iw_param *wrq, char *extra); 2435 int cfg80211_wext_giwpower(struct net_device *dev, 2436 struct iw_request_info *info, 2437 struct iw_param *wrq, char *extra); 2438 2439 int cfg80211_wext_siwap(struct net_device *dev, 2440 struct iw_request_info *info, 2441 struct sockaddr *ap_addr, char *extra); 2442 int cfg80211_wext_giwap(struct net_device *dev, 2443 struct iw_request_info *info, 2444 struct sockaddr *ap_addr, char *extra); 2445 2446 int cfg80211_wext_siwpmksa(struct net_device *dev, 2447 struct iw_request_info *info, 2448 struct iw_point *data, char *extra); 2449 2450 /* 2451 * callbacks for asynchronous cfg80211 methods, notification 2452 * functions and BSS handling helpers 2453 */ 2454 2455 /** 2456 * cfg80211_scan_done - notify that scan finished 2457 * 2458 * @request: the corresponding scan request 2459 * @aborted: set to true if the scan was aborted for any reason, 2460 * userspace will be notified of that 2461 */ 2462 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 2463 2464 /** 2465 * cfg80211_sched_scan_results - notify that new scan results are available 2466 * 2467 * @wiphy: the wiphy which got scheduled scan results 2468 */ 2469 void cfg80211_sched_scan_results(struct wiphy *wiphy); 2470 2471 /** 2472 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 2473 * 2474 * @wiphy: the wiphy on which the scheduled scan stopped 2475 * 2476 * The driver can call this function to inform cfg80211 that the 2477 * scheduled scan had to be stopped, for whatever reason. The driver 2478 * is then called back via the sched_scan_stop operation when done. 2479 */ 2480 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 2481 2482 /** 2483 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 2484 * 2485 * @wiphy: the wiphy reporting the BSS 2486 * @channel: The channel the frame was received on 2487 * @mgmt: the management frame (probe response or beacon) 2488 * @len: length of the management frame 2489 * @signal: the signal strength, type depends on the wiphy's signal_type 2490 * @gfp: context flags 2491 * 2492 * This informs cfg80211 that BSS information was found and 2493 * the BSS should be updated/added. 2494 */ 2495 struct cfg80211_bss* 2496 cfg80211_inform_bss_frame(struct wiphy *wiphy, 2497 struct ieee80211_channel *channel, 2498 struct ieee80211_mgmt *mgmt, size_t len, 2499 s32 signal, gfp_t gfp); 2500 2501 /** 2502 * cfg80211_inform_bss - inform cfg80211 of a new BSS 2503 * 2504 * @wiphy: the wiphy reporting the BSS 2505 * @channel: The channel the frame was received on 2506 * @bssid: the BSSID of the BSS 2507 * @timestamp: the TSF timestamp sent by the peer 2508 * @capability: the capability field sent by the peer 2509 * @beacon_interval: the beacon interval announced by the peer 2510 * @ie: additional IEs sent by the peer 2511 * @ielen: length of the additional IEs 2512 * @signal: the signal strength, type depends on the wiphy's signal_type 2513 * @gfp: context flags 2514 * 2515 * This informs cfg80211 that BSS information was found and 2516 * the BSS should be updated/added. 2517 */ 2518 struct cfg80211_bss* 2519 cfg80211_inform_bss(struct wiphy *wiphy, 2520 struct ieee80211_channel *channel, 2521 const u8 *bssid, 2522 u64 timestamp, u16 capability, u16 beacon_interval, 2523 const u8 *ie, size_t ielen, 2524 s32 signal, gfp_t gfp); 2525 2526 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 2527 struct ieee80211_channel *channel, 2528 const u8 *bssid, 2529 const u8 *ssid, size_t ssid_len, 2530 u16 capa_mask, u16 capa_val); 2531 static inline struct cfg80211_bss * 2532 cfg80211_get_ibss(struct wiphy *wiphy, 2533 struct ieee80211_channel *channel, 2534 const u8 *ssid, size_t ssid_len) 2535 { 2536 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 2537 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 2538 } 2539 2540 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy, 2541 struct ieee80211_channel *channel, 2542 const u8 *meshid, size_t meshidlen, 2543 const u8 *meshcfg); 2544 void cfg80211_put_bss(struct cfg80211_bss *bss); 2545 2546 /** 2547 * cfg80211_unlink_bss - unlink BSS from internal data structures 2548 * @wiphy: the wiphy 2549 * @bss: the bss to remove 2550 * 2551 * This function removes the given BSS from the internal data structures 2552 * thereby making it no longer show up in scan results etc. Use this 2553 * function when you detect a BSS is gone. Normally BSSes will also time 2554 * out, so it is not necessary to use this function at all. 2555 */ 2556 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 2557 2558 /** 2559 * cfg80211_send_rx_auth - notification of processed authentication 2560 * @dev: network device 2561 * @buf: authentication frame (header + body) 2562 * @len: length of the frame data 2563 * 2564 * This function is called whenever an authentication has been processed in 2565 * station mode. The driver is required to call either this function or 2566 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 2567 * call. This function may sleep. 2568 */ 2569 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 2570 2571 /** 2572 * cfg80211_send_auth_timeout - notification of timed out authentication 2573 * @dev: network device 2574 * @addr: The MAC address of the device with which the authentication timed out 2575 * 2576 * This function may sleep. 2577 */ 2578 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 2579 2580 /** 2581 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled 2582 * @dev: network device 2583 * @addr: The MAC address of the device with which the authentication timed out 2584 * 2585 * When a pending authentication had no action yet, the driver may decide 2586 * to not send a deauth frame, but in that case must calls this function 2587 * to tell cfg80211 about this decision. It is only valid to call this 2588 * function within the deauth() callback. 2589 */ 2590 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr); 2591 2592 /** 2593 * cfg80211_send_rx_assoc - notification of processed association 2594 * @dev: network device 2595 * @buf: (re)association response frame (header + body) 2596 * @len: length of the frame data 2597 * 2598 * This function is called whenever a (re)association response has been 2599 * processed in station mode. The driver is required to call either this 2600 * function or cfg80211_send_assoc_timeout() to indicate the result of 2601 * cfg80211_ops::assoc() call. This function may sleep. 2602 */ 2603 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len); 2604 2605 /** 2606 * cfg80211_send_assoc_timeout - notification of timed out association 2607 * @dev: network device 2608 * @addr: The MAC address of the device with which the association timed out 2609 * 2610 * This function may sleep. 2611 */ 2612 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 2613 2614 /** 2615 * cfg80211_send_deauth - notification of processed deauthentication 2616 * @dev: network device 2617 * @buf: deauthentication frame (header + body) 2618 * @len: length of the frame data 2619 * 2620 * This function is called whenever deauthentication has been processed in 2621 * station mode. This includes both received deauthentication frames and 2622 * locally generated ones. This function may sleep. 2623 */ 2624 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2625 2626 /** 2627 * __cfg80211_send_deauth - notification of processed deauthentication 2628 * @dev: network device 2629 * @buf: deauthentication frame (header + body) 2630 * @len: length of the frame data 2631 * 2632 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 2633 */ 2634 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2635 2636 /** 2637 * cfg80211_send_disassoc - notification of processed disassociation 2638 * @dev: network device 2639 * @buf: disassociation response frame (header + body) 2640 * @len: length of the frame data 2641 * 2642 * This function is called whenever disassociation has been processed in 2643 * station mode. This includes both received disassociation frames and locally 2644 * generated ones. This function may sleep. 2645 */ 2646 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 2647 2648 /** 2649 * __cfg80211_send_disassoc - notification of processed disassociation 2650 * @dev: network device 2651 * @buf: disassociation response frame (header + body) 2652 * @len: length of the frame data 2653 * 2654 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 2655 */ 2656 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 2657 size_t len); 2658 2659 /** 2660 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication 2661 * @dev: network device 2662 * @buf: deauthentication frame (header + body) 2663 * @len: length of the frame data 2664 * 2665 * This function is called whenever a received Deauthentication frame has been 2666 * dropped in station mode because of MFP being used but the Deauthentication 2667 * frame was not protected. This function may sleep. 2668 */ 2669 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, 2670 size_t len); 2671 2672 /** 2673 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation 2674 * @dev: network device 2675 * @buf: disassociation frame (header + body) 2676 * @len: length of the frame data 2677 * 2678 * This function is called whenever a received Disassociation frame has been 2679 * dropped in station mode because of MFP being used but the Disassociation 2680 * frame was not protected. This function may sleep. 2681 */ 2682 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, 2683 size_t len); 2684 2685 /** 2686 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 2687 * @dev: network device 2688 * @addr: The source MAC address of the frame 2689 * @key_type: The key type that the received frame used 2690 * @key_id: Key identifier (0..3) 2691 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 2692 * @gfp: allocation flags 2693 * 2694 * This function is called whenever the local MAC detects a MIC failure in a 2695 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 2696 * primitive. 2697 */ 2698 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 2699 enum nl80211_key_type key_type, int key_id, 2700 const u8 *tsc, gfp_t gfp); 2701 2702 /** 2703 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 2704 * 2705 * @dev: network device 2706 * @bssid: the BSSID of the IBSS joined 2707 * @gfp: allocation flags 2708 * 2709 * This function notifies cfg80211 that the device joined an IBSS or 2710 * switched to a different BSSID. Before this function can be called, 2711 * either a beacon has to have been received from the IBSS, or one of 2712 * the cfg80211_inform_bss{,_frame} functions must have been called 2713 * with the locally generated beacon -- this guarantees that there is 2714 * always a scan result for this IBSS. cfg80211 will handle the rest. 2715 */ 2716 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 2717 2718 /** 2719 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 2720 * 2721 * @dev: network device 2722 * @macaddr: the MAC address of the new candidate 2723 * @ie: information elements advertised by the peer candidate 2724 * @ie_len: lenght of the information elements buffer 2725 * @gfp: allocation flags 2726 * 2727 * This function notifies cfg80211 that the mesh peer candidate has been 2728 * detected, most likely via a beacon or, less likely, via a probe response. 2729 * cfg80211 then sends a notification to userspace. 2730 */ 2731 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 2732 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 2733 2734 /** 2735 * DOC: RFkill integration 2736 * 2737 * RFkill integration in cfg80211 is almost invisible to drivers, 2738 * as cfg80211 automatically registers an rfkill instance for each 2739 * wireless device it knows about. Soft kill is also translated 2740 * into disconnecting and turning all interfaces off, drivers are 2741 * expected to turn off the device when all interfaces are down. 2742 * 2743 * However, devices may have a hard RFkill line, in which case they 2744 * also need to interact with the rfkill subsystem, via cfg80211. 2745 * They can do this with a few helper functions documented here. 2746 */ 2747 2748 /** 2749 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 2750 * @wiphy: the wiphy 2751 * @blocked: block status 2752 */ 2753 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 2754 2755 /** 2756 * wiphy_rfkill_start_polling - start polling rfkill 2757 * @wiphy: the wiphy 2758 */ 2759 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 2760 2761 /** 2762 * wiphy_rfkill_stop_polling - stop polling rfkill 2763 * @wiphy: the wiphy 2764 */ 2765 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 2766 2767 #ifdef CONFIG_NL80211_TESTMODE 2768 /** 2769 * DOC: Test mode 2770 * 2771 * Test mode is a set of utility functions to allow drivers to 2772 * interact with driver-specific tools to aid, for instance, 2773 * factory programming. 2774 * 2775 * This chapter describes how drivers interact with it, for more 2776 * information see the nl80211 book's chapter on it. 2777 */ 2778 2779 /** 2780 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 2781 * @wiphy: the wiphy 2782 * @approxlen: an upper bound of the length of the data that will 2783 * be put into the skb 2784 * 2785 * This function allocates and pre-fills an skb for a reply to 2786 * the testmode command. Since it is intended for a reply, calling 2787 * it outside of the @testmode_cmd operation is invalid. 2788 * 2789 * The returned skb (or %NULL if any errors happen) is pre-filled 2790 * with the wiphy index and set up in a way that any data that is 2791 * put into the skb (with skb_put(), nla_put() or similar) will end 2792 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that 2793 * needs to be done with the skb is adding data for the corresponding 2794 * userspace tool which can then read that data out of the testdata 2795 * attribute. You must not modify the skb in any other way. 2796 * 2797 * When done, call cfg80211_testmode_reply() with the skb and return 2798 * its error code as the result of the @testmode_cmd operation. 2799 */ 2800 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 2801 int approxlen); 2802 2803 /** 2804 * cfg80211_testmode_reply - send the reply skb 2805 * @skb: The skb, must have been allocated with 2806 * cfg80211_testmode_alloc_reply_skb() 2807 * 2808 * Returns an error code or 0 on success, since calling this 2809 * function will usually be the last thing before returning 2810 * from the @testmode_cmd you should return the error code. 2811 * Note that this function consumes the skb regardless of the 2812 * return value. 2813 */ 2814 int cfg80211_testmode_reply(struct sk_buff *skb); 2815 2816 /** 2817 * cfg80211_testmode_alloc_event_skb - allocate testmode event 2818 * @wiphy: the wiphy 2819 * @approxlen: an upper bound of the length of the data that will 2820 * be put into the skb 2821 * @gfp: allocation flags 2822 * 2823 * This function allocates and pre-fills an skb for an event on the 2824 * testmode multicast group. 2825 * 2826 * The returned skb (or %NULL if any errors happen) is set up in the 2827 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared 2828 * for an event. As there, you should simply add data to it that will 2829 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must 2830 * not modify the skb in any other way. 2831 * 2832 * When done filling the skb, call cfg80211_testmode_event() with the 2833 * skb to send the event. 2834 */ 2835 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 2836 int approxlen, gfp_t gfp); 2837 2838 /** 2839 * cfg80211_testmode_event - send the event 2840 * @skb: The skb, must have been allocated with 2841 * cfg80211_testmode_alloc_event_skb() 2842 * @gfp: allocation flags 2843 * 2844 * This function sends the given @skb, which must have been allocated 2845 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 2846 * consumes it. 2847 */ 2848 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 2849 2850 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 2851 #else 2852 #define CFG80211_TESTMODE_CMD(cmd) 2853 #endif 2854 2855 /** 2856 * cfg80211_connect_result - notify cfg80211 of connection result 2857 * 2858 * @dev: network device 2859 * @bssid: the BSSID of the AP 2860 * @req_ie: association request IEs (maybe be %NULL) 2861 * @req_ie_len: association request IEs length 2862 * @resp_ie: association response IEs (may be %NULL) 2863 * @resp_ie_len: assoc response IEs length 2864 * @status: status code, 0 for successful connection, use 2865 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 2866 * the real status code for failures. 2867 * @gfp: allocation flags 2868 * 2869 * It should be called by the underlying driver whenever connect() has 2870 * succeeded. 2871 */ 2872 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 2873 const u8 *req_ie, size_t req_ie_len, 2874 const u8 *resp_ie, size_t resp_ie_len, 2875 u16 status, gfp_t gfp); 2876 2877 /** 2878 * cfg80211_roamed - notify cfg80211 of roaming 2879 * 2880 * @dev: network device 2881 * @bssid: the BSSID of the new AP 2882 * @req_ie: association request IEs (maybe be %NULL) 2883 * @req_ie_len: association request IEs length 2884 * @resp_ie: association response IEs (may be %NULL) 2885 * @resp_ie_len: assoc response IEs length 2886 * @gfp: allocation flags 2887 * 2888 * It should be called by the underlying driver whenever it roamed 2889 * from one AP to another while connected. 2890 */ 2891 void cfg80211_roamed(struct net_device *dev, const u8 *bssid, 2892 const u8 *req_ie, size_t req_ie_len, 2893 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 2894 2895 /** 2896 * cfg80211_disconnected - notify cfg80211 that connection was dropped 2897 * 2898 * @dev: network device 2899 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 2900 * @ie_len: length of IEs 2901 * @reason: reason code for the disconnection, set it to 0 if unknown 2902 * @gfp: allocation flags 2903 * 2904 * After it calls this function, the driver should enter an idle state 2905 * and not try to connect to any AP any more. 2906 */ 2907 void cfg80211_disconnected(struct net_device *dev, u16 reason, 2908 u8 *ie, size_t ie_len, gfp_t gfp); 2909 2910 /** 2911 * cfg80211_ready_on_channel - notification of remain_on_channel start 2912 * @dev: network device 2913 * @cookie: the request cookie 2914 * @chan: The current channel (from remain_on_channel request) 2915 * @channel_type: Channel type 2916 * @duration: Duration in milliseconds that the driver intents to remain on the 2917 * channel 2918 * @gfp: allocation flags 2919 */ 2920 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, 2921 struct ieee80211_channel *chan, 2922 enum nl80211_channel_type channel_type, 2923 unsigned int duration, gfp_t gfp); 2924 2925 /** 2926 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 2927 * @dev: network device 2928 * @cookie: the request cookie 2929 * @chan: The current channel (from remain_on_channel request) 2930 * @channel_type: Channel type 2931 * @gfp: allocation flags 2932 */ 2933 void cfg80211_remain_on_channel_expired(struct net_device *dev, 2934 u64 cookie, 2935 struct ieee80211_channel *chan, 2936 enum nl80211_channel_type channel_type, 2937 gfp_t gfp); 2938 2939 2940 /** 2941 * cfg80211_new_sta - notify userspace about station 2942 * 2943 * @dev: the netdev 2944 * @mac_addr: the station's address 2945 * @sinfo: the station information 2946 * @gfp: allocation flags 2947 */ 2948 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 2949 struct station_info *sinfo, gfp_t gfp); 2950 2951 /** 2952 * cfg80211_del_sta - notify userspace about deletion of a station 2953 * 2954 * @dev: the netdev 2955 * @mac_addr: the station's address 2956 * @gfp: allocation flags 2957 */ 2958 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 2959 2960 /** 2961 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 2962 * @dev: network device 2963 * @freq: Frequency on which the frame was received in MHz 2964 * @buf: Management frame (header + body) 2965 * @len: length of the frame data 2966 * @gfp: context flags 2967 * 2968 * Returns %true if a user space application has registered for this frame. 2969 * For action frames, that makes it responsible for rejecting unrecognized 2970 * action frames; %false otherwise, in which case for action frames the 2971 * driver is responsible for rejecting the frame. 2972 * 2973 * This function is called whenever an Action frame is received for a station 2974 * mode interface, but is not processed in kernel. 2975 */ 2976 bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, 2977 size_t len, gfp_t gfp); 2978 2979 /** 2980 * cfg80211_mgmt_tx_status - notification of TX status for management frame 2981 * @dev: network device 2982 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 2983 * @buf: Management frame (header + body) 2984 * @len: length of the frame data 2985 * @ack: Whether frame was acknowledged 2986 * @gfp: context flags 2987 * 2988 * This function is called whenever a management frame was requested to be 2989 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 2990 * transmission attempt. 2991 */ 2992 void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, 2993 const u8 *buf, size_t len, bool ack, gfp_t gfp); 2994 2995 2996 /** 2997 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 2998 * @dev: network device 2999 * @rssi_event: the triggered RSSI event 3000 * @gfp: context flags 3001 * 3002 * This function is called when a configured connection quality monitoring 3003 * rssi threshold reached event occurs. 3004 */ 3005 void cfg80211_cqm_rssi_notify(struct net_device *dev, 3006 enum nl80211_cqm_rssi_threshold_event rssi_event, 3007 gfp_t gfp); 3008 3009 /** 3010 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 3011 * @dev: network device 3012 * @peer: peer's MAC address 3013 * @num_packets: how many packets were lost -- should be a fixed threshold 3014 * but probably no less than maybe 50, or maybe a throughput dependent 3015 * threshold (to account for temporary interference) 3016 * @gfp: context flags 3017 */ 3018 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 3019 const u8 *peer, u32 num_packets, gfp_t gfp); 3020 3021 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 3022 3023 /* wiphy_printk helpers, similar to dev_printk */ 3024 3025 #define wiphy_printk(level, wiphy, format, args...) \ 3026 dev_printk(level, &(wiphy)->dev, format, ##args) 3027 #define wiphy_emerg(wiphy, format, args...) \ 3028 dev_emerg(&(wiphy)->dev, format, ##args) 3029 #define wiphy_alert(wiphy, format, args...) \ 3030 dev_alert(&(wiphy)->dev, format, ##args) 3031 #define wiphy_crit(wiphy, format, args...) \ 3032 dev_crit(&(wiphy)->dev, format, ##args) 3033 #define wiphy_err(wiphy, format, args...) \ 3034 dev_err(&(wiphy)->dev, format, ##args) 3035 #define wiphy_warn(wiphy, format, args...) \ 3036 dev_warn(&(wiphy)->dev, format, ##args) 3037 #define wiphy_notice(wiphy, format, args...) \ 3038 dev_notice(&(wiphy)->dev, format, ##args) 3039 #define wiphy_info(wiphy, format, args...) \ 3040 dev_info(&(wiphy)->dev, format, ##args) 3041 3042 #define wiphy_debug(wiphy, format, args...) \ 3043 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 3044 3045 #define wiphy_dbg(wiphy, format, args...) \ 3046 dev_dbg(&(wiphy)->dev, format, ##args) 3047 3048 #if defined(VERBOSE_DEBUG) 3049 #define wiphy_vdbg wiphy_dbg 3050 #else 3051 #define wiphy_vdbg(wiphy, format, args...) \ 3052 ({ \ 3053 if (0) \ 3054 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 3055 0; \ 3056 }) 3057 #endif 3058 3059 /* 3060 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 3061 * of using a WARN/WARN_ON to get the message out, including the 3062 * file/line information and a backtrace. 3063 */ 3064 #define wiphy_WARN(wiphy, format, args...) \ 3065 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 3066 3067 #endif /* __NET_CFG80211_H */ 3068