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 * @bss_param: current BSS parameters 535 * @generation: generation number for nl80211 dumps. 536 * This number should increase every time the list of stations 537 * changes, i.e. when a station is added or removed, so that 538 * userspace can tell whether it got a consistent snapshot. 539 */ 540 struct station_info { 541 u32 filled; 542 u32 connected_time; 543 u32 inactive_time; 544 u32 rx_bytes; 545 u32 tx_bytes; 546 u16 llid; 547 u16 plid; 548 u8 plink_state; 549 s8 signal; 550 s8 signal_avg; 551 struct rate_info txrate; 552 struct rate_info rxrate; 553 u32 rx_packets; 554 u32 tx_packets; 555 u32 tx_retries; 556 u32 tx_failed; 557 u32 rx_dropped_misc; 558 struct sta_bss_parameters bss_param; 559 560 int generation; 561 }; 562 563 /** 564 * enum monitor_flags - monitor flags 565 * 566 * Monitor interface configuration flags. Note that these must be the bits 567 * according to the nl80211 flags. 568 * 569 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 570 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 571 * @MONITOR_FLAG_CONTROL: pass control frames 572 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 573 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 574 */ 575 enum monitor_flags { 576 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 577 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 578 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 579 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 580 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 581 }; 582 583 /** 584 * enum mpath_info_flags - mesh path information flags 585 * 586 * Used by the driver to indicate which info in &struct mpath_info it has filled 587 * in during get_station() or dump_station(). 588 * 589 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 590 * @MPATH_INFO_SN: @sn filled 591 * @MPATH_INFO_METRIC: @metric filled 592 * @MPATH_INFO_EXPTIME: @exptime filled 593 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 594 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 595 * @MPATH_INFO_FLAGS: @flags filled 596 */ 597 enum mpath_info_flags { 598 MPATH_INFO_FRAME_QLEN = BIT(0), 599 MPATH_INFO_SN = BIT(1), 600 MPATH_INFO_METRIC = BIT(2), 601 MPATH_INFO_EXPTIME = BIT(3), 602 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 603 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 604 MPATH_INFO_FLAGS = BIT(6), 605 }; 606 607 /** 608 * struct mpath_info - mesh path information 609 * 610 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 611 * 612 * @filled: bitfield of flags from &enum mpath_info_flags 613 * @frame_qlen: number of queued frames for this destination 614 * @sn: target sequence number 615 * @metric: metric (cost) of this mesh path 616 * @exptime: expiration time for the mesh path from now, in msecs 617 * @flags: mesh path flags 618 * @discovery_timeout: total mesh path discovery timeout, in msecs 619 * @discovery_retries: mesh path discovery retries 620 * @generation: generation number for nl80211 dumps. 621 * This number should increase every time the list of mesh paths 622 * changes, i.e. when a station is added or removed, so that 623 * userspace can tell whether it got a consistent snapshot. 624 */ 625 struct mpath_info { 626 u32 filled; 627 u32 frame_qlen; 628 u32 sn; 629 u32 metric; 630 u32 exptime; 631 u32 discovery_timeout; 632 u8 discovery_retries; 633 u8 flags; 634 635 int generation; 636 }; 637 638 /** 639 * struct bss_parameters - BSS parameters 640 * 641 * Used to change BSS parameters (mainly for AP mode). 642 * 643 * @use_cts_prot: Whether to use CTS protection 644 * (0 = no, 1 = yes, -1 = do not change) 645 * @use_short_preamble: Whether the use of short preambles is allowed 646 * (0 = no, 1 = yes, -1 = do not change) 647 * @use_short_slot_time: Whether the use of short slot time is allowed 648 * (0 = no, 1 = yes, -1 = do not change) 649 * @basic_rates: basic rates in IEEE 802.11 format 650 * (or NULL for no change) 651 * @basic_rates_len: number of basic rates 652 * @ap_isolate: do not forward packets between connected stations 653 * @ht_opmode: HT Operation mode 654 * (u16 = opmode, -1 = do not change) 655 */ 656 struct bss_parameters { 657 int use_cts_prot; 658 int use_short_preamble; 659 int use_short_slot_time; 660 u8 *basic_rates; 661 u8 basic_rates_len; 662 int ap_isolate; 663 int ht_opmode; 664 }; 665 666 /* 667 * struct mesh_config - 802.11s mesh configuration 668 * 669 * These parameters can be changed while the mesh is active. 670 */ 671 struct mesh_config { 672 /* Timeouts in ms */ 673 /* Mesh plink management parameters */ 674 u16 dot11MeshRetryTimeout; 675 u16 dot11MeshConfirmTimeout; 676 u16 dot11MeshHoldingTimeout; 677 u16 dot11MeshMaxPeerLinks; 678 u8 dot11MeshMaxRetries; 679 u8 dot11MeshTTL; 680 /* ttl used in path selection information elements */ 681 u8 element_ttl; 682 bool auto_open_plinks; 683 /* HWMP parameters */ 684 u8 dot11MeshHWMPmaxPREQretries; 685 u32 path_refresh_time; 686 u16 min_discovery_timeout; 687 u32 dot11MeshHWMPactivePathTimeout; 688 u16 dot11MeshHWMPpreqMinInterval; 689 u16 dot11MeshHWMPnetDiameterTraversalTime; 690 u8 dot11MeshHWMPRootMode; 691 }; 692 693 /** 694 * struct mesh_setup - 802.11s mesh setup configuration 695 * @mesh_id: the mesh ID 696 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 697 * @path_sel_proto: which path selection protocol to use 698 * @path_metric: which metric to use 699 * @ie: vendor information elements (optional) 700 * @ie_len: length of vendor information elements 701 * @is_authenticated: this mesh requires authentication 702 * @is_secure: this mesh uses security 703 * 704 * These parameters are fixed when the mesh is created. 705 */ 706 struct mesh_setup { 707 const u8 *mesh_id; 708 u8 mesh_id_len; 709 u8 path_sel_proto; 710 u8 path_metric; 711 const u8 *ie; 712 u8 ie_len; 713 bool is_authenticated; 714 bool is_secure; 715 }; 716 717 /** 718 * struct ieee80211_txq_params - TX queue parameters 719 * @queue: TX queue identifier (NL80211_TXQ_Q_*) 720 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 721 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 722 * 1..32767] 723 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 724 * 1..32767] 725 * @aifs: Arbitration interframe space [0..255] 726 */ 727 struct ieee80211_txq_params { 728 enum nl80211_txq_q queue; 729 u16 txop; 730 u16 cwmin; 731 u16 cwmax; 732 u8 aifs; 733 }; 734 735 /* from net/wireless.h */ 736 struct wiphy; 737 738 /** 739 * DOC: Scanning and BSS list handling 740 * 741 * The scanning process itself is fairly simple, but cfg80211 offers quite 742 * a bit of helper functionality. To start a scan, the scan operation will 743 * be invoked with a scan definition. This scan definition contains the 744 * channels to scan, and the SSIDs to send probe requests for (including the 745 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 746 * probe. Additionally, a scan request may contain extra information elements 747 * that should be added to the probe request. The IEs are guaranteed to be 748 * well-formed, and will not exceed the maximum length the driver advertised 749 * in the wiphy structure. 750 * 751 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 752 * it is responsible for maintaining the BSS list; the driver should not 753 * maintain a list itself. For this notification, various functions exist. 754 * 755 * Since drivers do not maintain a BSS list, there are also a number of 756 * functions to search for a BSS and obtain information about it from the 757 * BSS structure cfg80211 maintains. The BSS list is also made available 758 * to userspace. 759 */ 760 761 /** 762 * struct cfg80211_ssid - SSID description 763 * @ssid: the SSID 764 * @ssid_len: length of the ssid 765 */ 766 struct cfg80211_ssid { 767 u8 ssid[IEEE80211_MAX_SSID_LEN]; 768 u8 ssid_len; 769 }; 770 771 /** 772 * struct cfg80211_scan_request - scan request description 773 * 774 * @ssids: SSIDs to scan for (active scan only) 775 * @n_ssids: number of SSIDs 776 * @channels: channels to scan on. 777 * @n_channels: total number of channels to scan 778 * @ie: optional information element(s) to add into Probe Request or %NULL 779 * @ie_len: length of ie in octets 780 * @rates: bitmap of rates to advertise for each band 781 * @wiphy: the wiphy this was for 782 * @dev: the interface 783 * @aborted: (internal) scan request was notified as aborted 784 */ 785 struct cfg80211_scan_request { 786 struct cfg80211_ssid *ssids; 787 int n_ssids; 788 u32 n_channels; 789 const u8 *ie; 790 size_t ie_len; 791 792 u32 rates[IEEE80211_NUM_BANDS]; 793 794 /* internal */ 795 struct wiphy *wiphy; 796 struct net_device *dev; 797 bool aborted; 798 799 /* keep last */ 800 struct ieee80211_channel *channels[0]; 801 }; 802 803 /** 804 * struct cfg80211_sched_scan_request - scheduled scan request description 805 * 806 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 807 * @n_ssids: number of SSIDs 808 * @n_channels: total number of channels to scan 809 * @interval: interval between each scheduled scan cycle 810 * @ie: optional information element(s) to add into Probe Request or %NULL 811 * @ie_len: length of ie in octets 812 * @wiphy: the wiphy this was for 813 * @dev: the interface 814 * @channels: channels to scan 815 */ 816 struct cfg80211_sched_scan_request { 817 struct cfg80211_ssid *ssids; 818 int n_ssids; 819 u32 n_channels; 820 u32 interval; 821 const u8 *ie; 822 size_t ie_len; 823 824 /* internal */ 825 struct wiphy *wiphy; 826 struct net_device *dev; 827 828 /* keep last */ 829 struct ieee80211_channel *channels[0]; 830 }; 831 832 /** 833 * enum cfg80211_signal_type - signal type 834 * 835 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 836 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 837 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 838 */ 839 enum cfg80211_signal_type { 840 CFG80211_SIGNAL_TYPE_NONE, 841 CFG80211_SIGNAL_TYPE_MBM, 842 CFG80211_SIGNAL_TYPE_UNSPEC, 843 }; 844 845 /** 846 * struct cfg80211_bss - BSS description 847 * 848 * This structure describes a BSS (which may also be a mesh network) 849 * for use in scan results and similar. 850 * 851 * @channel: channel this BSS is on 852 * @bssid: BSSID of the BSS 853 * @tsf: timestamp of last received update 854 * @beacon_interval: the beacon interval as from the frame 855 * @capability: the capability field in host byte order 856 * @information_elements: the information elements (Note that there 857 * is no guarantee that these are well-formed!); this is a pointer to 858 * either the beacon_ies or proberesp_ies depending on whether Probe 859 * Response frame has been received 860 * @len_information_elements: total length of the information elements 861 * @beacon_ies: the information elements from the last Beacon frame 862 * @len_beacon_ies: total length of the beacon_ies 863 * @proberesp_ies: the information elements from the last Probe Response frame 864 * @len_proberesp_ies: total length of the proberesp_ies 865 * @signal: signal strength value (type depends on the wiphy's signal_type) 866 * @free_priv: function pointer to free private data 867 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 868 */ 869 struct cfg80211_bss { 870 struct ieee80211_channel *channel; 871 872 u8 bssid[ETH_ALEN]; 873 u64 tsf; 874 u16 beacon_interval; 875 u16 capability; 876 u8 *information_elements; 877 size_t len_information_elements; 878 u8 *beacon_ies; 879 size_t len_beacon_ies; 880 u8 *proberesp_ies; 881 size_t len_proberesp_ies; 882 883 s32 signal; 884 885 void (*free_priv)(struct cfg80211_bss *bss); 886 u8 priv[0] __attribute__((__aligned__(sizeof(void *)))); 887 }; 888 889 /** 890 * ieee80211_bss_get_ie - find IE with given ID 891 * @bss: the bss to search 892 * @ie: the IE ID 893 * Returns %NULL if not found. 894 */ 895 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 896 897 898 /** 899 * struct cfg80211_crypto_settings - Crypto settings 900 * @wpa_versions: indicates which, if any, WPA versions are enabled 901 * (from enum nl80211_wpa_versions) 902 * @cipher_group: group key cipher suite (or 0 if unset) 903 * @n_ciphers_pairwise: number of AP supported unicast ciphers 904 * @ciphers_pairwise: unicast key cipher suites 905 * @n_akm_suites: number of AKM suites 906 * @akm_suites: AKM suites 907 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 908 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 909 * required to assume that the port is unauthorized until authorized by 910 * user space. Otherwise, port is marked authorized by default. 911 * @control_port_ethertype: the control port protocol that should be 912 * allowed through even on unauthorized ports 913 * @control_port_no_encrypt: TRUE to prevent encryption of control port 914 * protocol frames. 915 */ 916 struct cfg80211_crypto_settings { 917 u32 wpa_versions; 918 u32 cipher_group; 919 int n_ciphers_pairwise; 920 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 921 int n_akm_suites; 922 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 923 bool control_port; 924 __be16 control_port_ethertype; 925 bool control_port_no_encrypt; 926 }; 927 928 /** 929 * struct cfg80211_auth_request - Authentication request data 930 * 931 * This structure provides information needed to complete IEEE 802.11 932 * authentication. 933 * 934 * @bss: The BSS to authenticate with. 935 * @auth_type: Authentication type (algorithm) 936 * @ie: Extra IEs to add to Authentication frame or %NULL 937 * @ie_len: Length of ie buffer in octets 938 * @key_len: length of WEP key for shared key authentication 939 * @key_idx: index of WEP key for shared key authentication 940 * @key: WEP key for shared key authentication 941 * @local_state_change: This is a request for a local state only, i.e., no 942 * Authentication frame is to be transmitted and authentication state is 943 * to be changed without having to wait for a response from the peer STA 944 * (AP). 945 */ 946 struct cfg80211_auth_request { 947 struct cfg80211_bss *bss; 948 const u8 *ie; 949 size_t ie_len; 950 enum nl80211_auth_type auth_type; 951 const u8 *key; 952 u8 key_len, key_idx; 953 bool local_state_change; 954 }; 955 956 /** 957 * struct cfg80211_assoc_request - (Re)Association request data 958 * 959 * This structure provides information needed to complete IEEE 802.11 960 * (re)association. 961 * @bss: The BSS to associate with. 962 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 963 * @ie_len: Length of ie buffer in octets 964 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 965 * @crypto: crypto settings 966 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 967 */ 968 struct cfg80211_assoc_request { 969 struct cfg80211_bss *bss; 970 const u8 *ie, *prev_bssid; 971 size_t ie_len; 972 struct cfg80211_crypto_settings crypto; 973 bool use_mfp; 974 }; 975 976 /** 977 * struct cfg80211_deauth_request - Deauthentication request data 978 * 979 * This structure provides information needed to complete IEEE 802.11 980 * deauthentication. 981 * 982 * @bss: the BSS to deauthenticate from 983 * @ie: Extra IEs to add to Deauthentication frame or %NULL 984 * @ie_len: Length of ie buffer in octets 985 * @reason_code: The reason code for the deauthentication 986 * @local_state_change: This is a request for a local state only, i.e., no 987 * Deauthentication frame is to be transmitted. 988 */ 989 struct cfg80211_deauth_request { 990 struct cfg80211_bss *bss; 991 const u8 *ie; 992 size_t ie_len; 993 u16 reason_code; 994 bool local_state_change; 995 }; 996 997 /** 998 * struct cfg80211_disassoc_request - Disassociation request data 999 * 1000 * This structure provides information needed to complete IEEE 802.11 1001 * disassocation. 1002 * 1003 * @bss: the BSS to disassociate from 1004 * @ie: Extra IEs to add to Disassociation frame or %NULL 1005 * @ie_len: Length of ie buffer in octets 1006 * @reason_code: The reason code for the disassociation 1007 * @local_state_change: This is a request for a local state only, i.e., no 1008 * Disassociation frame is to be transmitted. 1009 */ 1010 struct cfg80211_disassoc_request { 1011 struct cfg80211_bss *bss; 1012 const u8 *ie; 1013 size_t ie_len; 1014 u16 reason_code; 1015 bool local_state_change; 1016 }; 1017 1018 /** 1019 * struct cfg80211_ibss_params - IBSS parameters 1020 * 1021 * This structure defines the IBSS parameters for the join_ibss() 1022 * method. 1023 * 1024 * @ssid: The SSID, will always be non-null. 1025 * @ssid_len: The length of the SSID, will always be non-zero. 1026 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1027 * search for IBSSs with a different BSSID. 1028 * @channel: The channel to use if no IBSS can be found to join. 1029 * @channel_fixed: The channel should be fixed -- do not search for 1030 * IBSSs to join on other channels. 1031 * @ie: information element(s) to include in the beacon 1032 * @ie_len: length of that 1033 * @beacon_interval: beacon interval to use 1034 * @privacy: this is a protected network, keys will be configured 1035 * after joining 1036 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1037 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1038 */ 1039 struct cfg80211_ibss_params { 1040 u8 *ssid; 1041 u8 *bssid; 1042 struct ieee80211_channel *channel; 1043 u8 *ie; 1044 u8 ssid_len, ie_len; 1045 u16 beacon_interval; 1046 u32 basic_rates; 1047 bool channel_fixed; 1048 bool privacy; 1049 int mcast_rate[IEEE80211_NUM_BANDS]; 1050 }; 1051 1052 /** 1053 * struct cfg80211_connect_params - Connection parameters 1054 * 1055 * This structure provides information needed to complete IEEE 802.11 1056 * authentication and association. 1057 * 1058 * @channel: The channel to use or %NULL if not specified (auto-select based 1059 * on scan results) 1060 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1061 * results) 1062 * @ssid: SSID 1063 * @ssid_len: Length of ssid in octets 1064 * @auth_type: Authentication type (algorithm) 1065 * @ie: IEs for association request 1066 * @ie_len: Length of assoc_ie in octets 1067 * @privacy: indicates whether privacy-enabled APs should be used 1068 * @crypto: crypto settings 1069 * @key_len: length of WEP key for shared key authentication 1070 * @key_idx: index of WEP key for shared key authentication 1071 * @key: WEP key for shared key authentication 1072 */ 1073 struct cfg80211_connect_params { 1074 struct ieee80211_channel *channel; 1075 u8 *bssid; 1076 u8 *ssid; 1077 size_t ssid_len; 1078 enum nl80211_auth_type auth_type; 1079 u8 *ie; 1080 size_t ie_len; 1081 bool privacy; 1082 struct cfg80211_crypto_settings crypto; 1083 const u8 *key; 1084 u8 key_len, key_idx; 1085 }; 1086 1087 /** 1088 * enum wiphy_params_flags - set_wiphy_params bitfield values 1089 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1090 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1091 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1092 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1093 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1094 */ 1095 enum wiphy_params_flags { 1096 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1097 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1098 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1099 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1100 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1101 }; 1102 1103 /* 1104 * cfg80211_bitrate_mask - masks for bitrate control 1105 */ 1106 struct cfg80211_bitrate_mask { 1107 struct { 1108 u32 legacy; 1109 /* TODO: add support for masking MCS rates; e.g.: */ 1110 /* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */ 1111 } control[IEEE80211_NUM_BANDS]; 1112 }; 1113 /** 1114 * struct cfg80211_pmksa - PMK Security Association 1115 * 1116 * This structure is passed to the set/del_pmksa() method for PMKSA 1117 * caching. 1118 * 1119 * @bssid: The AP's BSSID. 1120 * @pmkid: The PMK material itself. 1121 */ 1122 struct cfg80211_pmksa { 1123 u8 *bssid; 1124 u8 *pmkid; 1125 }; 1126 1127 /** 1128 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern 1129 * @mask: bitmask where to match pattern and where to ignore bytes, 1130 * one bit per byte, in same format as nl80211 1131 * @pattern: bytes to match where bitmask is 1 1132 * @pattern_len: length of pattern (in bytes) 1133 * 1134 * Internal note: @mask and @pattern are allocated in one chunk of 1135 * memory, free @mask only! 1136 */ 1137 struct cfg80211_wowlan_trig_pkt_pattern { 1138 u8 *mask, *pattern; 1139 int pattern_len; 1140 }; 1141 1142 /** 1143 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1144 * 1145 * This structure defines the enabled WoWLAN triggers for the device. 1146 * @any: wake up on any activity -- special trigger if device continues 1147 * operating as normal during suspend 1148 * @disconnect: wake up if getting disconnected 1149 * @magic_pkt: wake up on receiving magic packet 1150 * @patterns: wake up on receiving packet matching a pattern 1151 * @n_patterns: number of patterns 1152 * @gtk_rekey_failure: wake up on GTK rekey failure 1153 * @eap_identity_req: wake up on EAP identity request packet 1154 * @four_way_handshake: wake up on 4-way handshake 1155 * @rfkill_release: wake up when rfkill is released 1156 */ 1157 struct cfg80211_wowlan { 1158 bool any, disconnect, magic_pkt, gtk_rekey_failure, 1159 eap_identity_req, four_way_handshake, 1160 rfkill_release; 1161 struct cfg80211_wowlan_trig_pkt_pattern *patterns; 1162 int n_patterns; 1163 }; 1164 1165 /** 1166 * struct cfg80211_gtk_rekey_data - rekey data 1167 * @kek: key encryption key 1168 * @kck: key confirmation key 1169 * @replay_ctr: replay counter 1170 */ 1171 struct cfg80211_gtk_rekey_data { 1172 u8 kek[NL80211_KEK_LEN]; 1173 u8 kck[NL80211_KCK_LEN]; 1174 u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; 1175 }; 1176 1177 /** 1178 * struct cfg80211_ops - backend description for wireless configuration 1179 * 1180 * This struct is registered by fullmac card drivers and/or wireless stacks 1181 * in order to handle configuration requests on their interfaces. 1182 * 1183 * All callbacks except where otherwise noted should return 0 1184 * on success or a negative error code. 1185 * 1186 * All operations are currently invoked under rtnl for consistency with the 1187 * wireless extensions but this is subject to reevaluation as soon as this 1188 * code is used more widely and we have a first user without wext. 1189 * 1190 * @suspend: wiphy device needs to be suspended. The variable @wow will 1191 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 1192 * configured for the device. 1193 * @resume: wiphy device needs to be resumed 1194 * 1195 * @add_virtual_intf: create a new virtual interface with the given name, 1196 * must set the struct wireless_dev's iftype. Beware: You must create 1197 * the new netdev in the wiphy's network namespace! Returns the netdev, 1198 * or an ERR_PTR. 1199 * 1200 * @del_virtual_intf: remove the virtual interface determined by ifindex. 1201 * 1202 * @change_virtual_intf: change type/configuration of virtual interface, 1203 * keep the struct wireless_dev's iftype updated. 1204 * 1205 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 1206 * when adding a group key. 1207 * 1208 * @get_key: get information about the key with the given parameters. 1209 * @mac_addr will be %NULL when requesting information for a group 1210 * key. All pointers given to the @callback function need not be valid 1211 * after it returns. This function should return an error if it is 1212 * not possible to retrieve the key, -ENOENT if it doesn't exist. 1213 * 1214 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 1215 * and @key_index, return -ENOENT if the key doesn't exist. 1216 * 1217 * @set_default_key: set the default key on an interface 1218 * 1219 * @set_default_mgmt_key: set the default management frame key on an interface 1220 * 1221 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 1222 * 1223 * @add_beacon: Add a beacon with given parameters, @head, @interval 1224 * and @dtim_period will be valid, @tail is optional. 1225 * @set_beacon: Change the beacon parameters for an access point mode 1226 * interface. This should reject the call when no beacon has been 1227 * configured. 1228 * @del_beacon: Remove beacon configuration and stop sending the beacon. 1229 * 1230 * @add_station: Add a new station. 1231 * @del_station: Remove a station; @mac may be NULL to remove all stations. 1232 * @change_station: Modify a given station. 1233 * @get_station: get station information for the station identified by @mac 1234 * @dump_station: dump station callback -- resume dump at index @idx 1235 * 1236 * @add_mpath: add a fixed mesh path 1237 * @del_mpath: delete a given mesh path 1238 * @change_mpath: change a given mesh path 1239 * @get_mpath: get a mesh path for the given parameters 1240 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 1241 * @join_mesh: join the mesh network with the specified parameters 1242 * @leave_mesh: leave the current mesh network 1243 * 1244 * @get_mesh_config: Get the current mesh configuration 1245 * 1246 * @update_mesh_config: Update mesh parameters on a running mesh. 1247 * The mask is a bitfield which tells us which parameters to 1248 * set, and which to leave alone. 1249 * 1250 * @change_bss: Modify parameters for a given BSS. 1251 * 1252 * @set_txq_params: Set TX queue parameters 1253 * 1254 * @set_channel: Set channel for a given wireless interface. Some devices 1255 * may support multi-channel operation (by channel hopping) so cfg80211 1256 * doesn't verify much. Note, however, that the passed netdev may be 1257 * %NULL as well if the user requested changing the channel for the 1258 * device itself, or for a monitor interface. 1259 * 1260 * @scan: Request to do a scan. If returning zero, the scan request is given 1261 * the driver, and will be valid until passed to cfg80211_scan_done(). 1262 * For scan results, call cfg80211_inform_bss(); you can call this outside 1263 * the scan/scan_done bracket too. 1264 * 1265 * @auth: Request to authenticate with the specified peer 1266 * @assoc: Request to (re)associate with the specified peer 1267 * @deauth: Request to deauthenticate from the specified peer 1268 * @disassoc: Request to disassociate from the specified peer 1269 * 1270 * @connect: Connect to the ESS with the specified parameters. When connected, 1271 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 1272 * If the connection fails for some reason, call cfg80211_connect_result() 1273 * with the status from the AP. 1274 * @disconnect: Disconnect from the BSS/ESS. 1275 * 1276 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 1277 * cfg80211_ibss_joined(), also call that function when changing BSSID due 1278 * to a merge. 1279 * @leave_ibss: Leave the IBSS. 1280 * 1281 * @set_wiphy_params: Notify that wiphy parameters have changed; 1282 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1283 * have changed. The actual parameter values are available in 1284 * struct wiphy. If returning an error, no value should be changed. 1285 * 1286 * @set_tx_power: set the transmit power according to the parameters 1287 * @get_tx_power: store the current TX power into the dbm variable; 1288 * return 0 if successful 1289 * 1290 * @set_wds_peer: set the WDS peer for a WDS interface 1291 * 1292 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1293 * functions to adjust rfkill hw state 1294 * 1295 * @dump_survey: get site survey information. 1296 * 1297 * @remain_on_channel: Request the driver to remain awake on the specified 1298 * channel for the specified duration to complete an off-channel 1299 * operation (e.g., public action frame exchange). When the driver is 1300 * ready on the requested channel, it must indicate this with an event 1301 * notification by calling cfg80211_ready_on_channel(). 1302 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1303 * This allows the operation to be terminated prior to timeout based on 1304 * the duration value. 1305 * @mgmt_tx: Transmit a management frame. 1306 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 1307 * frame on another channel 1308 * 1309 * @testmode_cmd: run a test mode command 1310 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 1311 * used by the function, but 0 and 1 must not be touched. Additionally, 1312 * return error codes other than -ENOBUFS and -ENOENT will terminate the 1313 * dump and return to userspace with an error, so be careful. If any data 1314 * was passed in from userspace then the data/len arguments will be present 1315 * and point to the data contained in %NL80211_ATTR_TESTDATA. 1316 * 1317 * @set_bitrate_mask: set the bitrate mask configuration 1318 * 1319 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 1320 * devices running firmwares capable of generating the (re) association 1321 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 1322 * @del_pmksa: Delete a cached PMKID. 1323 * @flush_pmksa: Flush all cached PMKIDs. 1324 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 1325 * allows the driver to adjust the dynamic ps timeout value. 1326 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 1327 * @sched_scan_start: Tell the driver to start a scheduled scan. 1328 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled 1329 * scan. The driver_initiated flag specifies whether the driver 1330 * itself has informed that the scan has stopped. 1331 * 1332 * @mgmt_frame_register: Notify driver that a management frame type was 1333 * registered. Note that this callback may not sleep, and cannot run 1334 * concurrently with itself. 1335 * 1336 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 1337 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 1338 * reject TX/RX mask combinations they cannot support by returning -EINVAL 1339 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 1340 * 1341 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 1342 * 1343 * @set_ringparam: Set tx and rx ring sizes. 1344 * 1345 * @get_ringparam: Get tx and rx ring current and maximum sizes. 1346 */ 1347 struct cfg80211_ops { 1348 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 1349 int (*resume)(struct wiphy *wiphy); 1350 1351 struct net_device * (*add_virtual_intf)(struct wiphy *wiphy, 1352 char *name, 1353 enum nl80211_iftype type, 1354 u32 *flags, 1355 struct vif_params *params); 1356 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev); 1357 int (*change_virtual_intf)(struct wiphy *wiphy, 1358 struct net_device *dev, 1359 enum nl80211_iftype type, u32 *flags, 1360 struct vif_params *params); 1361 1362 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 1363 u8 key_index, bool pairwise, const u8 *mac_addr, 1364 struct key_params *params); 1365 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 1366 u8 key_index, bool pairwise, const u8 *mac_addr, 1367 void *cookie, 1368 void (*callback)(void *cookie, struct key_params*)); 1369 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 1370 u8 key_index, bool pairwise, const u8 *mac_addr); 1371 int (*set_default_key)(struct wiphy *wiphy, 1372 struct net_device *netdev, 1373 u8 key_index, bool unicast, bool multicast); 1374 int (*set_default_mgmt_key)(struct wiphy *wiphy, 1375 struct net_device *netdev, 1376 u8 key_index); 1377 1378 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev, 1379 struct beacon_parameters *info); 1380 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev, 1381 struct beacon_parameters *info); 1382 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev); 1383 1384 1385 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 1386 u8 *mac, struct station_parameters *params); 1387 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 1388 u8 *mac); 1389 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 1390 u8 *mac, struct station_parameters *params); 1391 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 1392 u8 *mac, struct station_info *sinfo); 1393 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 1394 int idx, u8 *mac, struct station_info *sinfo); 1395 1396 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 1397 u8 *dst, u8 *next_hop); 1398 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 1399 u8 *dst); 1400 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 1401 u8 *dst, u8 *next_hop); 1402 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 1403 u8 *dst, u8 *next_hop, 1404 struct mpath_info *pinfo); 1405 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 1406 int idx, u8 *dst, u8 *next_hop, 1407 struct mpath_info *pinfo); 1408 int (*get_mesh_config)(struct wiphy *wiphy, 1409 struct net_device *dev, 1410 struct mesh_config *conf); 1411 int (*update_mesh_config)(struct wiphy *wiphy, 1412 struct net_device *dev, u32 mask, 1413 const struct mesh_config *nconf); 1414 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 1415 const struct mesh_config *conf, 1416 const struct mesh_setup *setup); 1417 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 1418 1419 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 1420 struct bss_parameters *params); 1421 1422 int (*set_txq_params)(struct wiphy *wiphy, 1423 struct ieee80211_txq_params *params); 1424 1425 int (*set_channel)(struct wiphy *wiphy, struct net_device *dev, 1426 struct ieee80211_channel *chan, 1427 enum nl80211_channel_type channel_type); 1428 1429 int (*scan)(struct wiphy *wiphy, struct net_device *dev, 1430 struct cfg80211_scan_request *request); 1431 1432 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 1433 struct cfg80211_auth_request *req); 1434 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 1435 struct cfg80211_assoc_request *req); 1436 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 1437 struct cfg80211_deauth_request *req, 1438 void *cookie); 1439 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 1440 struct cfg80211_disassoc_request *req, 1441 void *cookie); 1442 1443 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 1444 struct cfg80211_connect_params *sme); 1445 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 1446 u16 reason_code); 1447 1448 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 1449 struct cfg80211_ibss_params *params); 1450 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 1451 1452 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 1453 1454 int (*set_tx_power)(struct wiphy *wiphy, 1455 enum nl80211_tx_power_setting type, int mbm); 1456 int (*get_tx_power)(struct wiphy *wiphy, int *dbm); 1457 1458 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 1459 const u8 *addr); 1460 1461 void (*rfkill_poll)(struct wiphy *wiphy); 1462 1463 #ifdef CONFIG_NL80211_TESTMODE 1464 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 1465 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 1466 struct netlink_callback *cb, 1467 void *data, int len); 1468 #endif 1469 1470 int (*set_bitrate_mask)(struct wiphy *wiphy, 1471 struct net_device *dev, 1472 const u8 *peer, 1473 const struct cfg80211_bitrate_mask *mask); 1474 1475 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 1476 int idx, struct survey_info *info); 1477 1478 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1479 struct cfg80211_pmksa *pmksa); 1480 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1481 struct cfg80211_pmksa *pmksa); 1482 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 1483 1484 int (*remain_on_channel)(struct wiphy *wiphy, 1485 struct net_device *dev, 1486 struct ieee80211_channel *chan, 1487 enum nl80211_channel_type channel_type, 1488 unsigned int duration, 1489 u64 *cookie); 1490 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 1491 struct net_device *dev, 1492 u64 cookie); 1493 1494 int (*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev, 1495 struct ieee80211_channel *chan, bool offchan, 1496 enum nl80211_channel_type channel_type, 1497 bool channel_type_valid, unsigned int wait, 1498 const u8 *buf, size_t len, u64 *cookie); 1499 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 1500 struct net_device *dev, 1501 u64 cookie); 1502 1503 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 1504 bool enabled, int timeout); 1505 1506 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 1507 struct net_device *dev, 1508 s32 rssi_thold, u32 rssi_hyst); 1509 1510 void (*mgmt_frame_register)(struct wiphy *wiphy, 1511 struct net_device *dev, 1512 u16 frame_type, bool reg); 1513 1514 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 1515 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 1516 1517 int (*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx); 1518 void (*get_ringparam)(struct wiphy *wiphy, 1519 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); 1520 1521 int (*sched_scan_start)(struct wiphy *wiphy, 1522 struct net_device *dev, 1523 struct cfg80211_sched_scan_request *request); 1524 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 1525 1526 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 1527 struct cfg80211_gtk_rekey_data *data); 1528 }; 1529 1530 /* 1531 * wireless hardware and networking interfaces structures 1532 * and registration/helper functions 1533 */ 1534 1535 /** 1536 * enum wiphy_flags - wiphy capability flags 1537 * 1538 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 1539 * has its own custom regulatory domain and cannot identify the 1540 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 1541 * we will disregard the first regulatory hint (when the 1542 * initiator is %REGDOM_SET_BY_CORE). 1543 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 1544 * ignore regulatory domain settings until it gets its own regulatory 1545 * domain via its regulatory_hint() unless the regulatory hint is 1546 * from a country IE. After its gets its own regulatory domain it will 1547 * only allow further regulatory domain settings to further enhance 1548 * compliance. For example if channel 13 and 14 are disabled by this 1549 * regulatory domain no user regulatory domain can enable these channels 1550 * at a later time. This can be used for devices which do not have 1551 * calibration information guaranteed for frequencies or settings 1552 * outside of its regulatory domain. 1553 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 1554 * that passive scan flags and beaconing flags may not be lifted by 1555 * cfg80211 due to regulatory beacon hints. For more information on beacon 1556 * hints read the documenation for regulatory_hint_found_beacon() 1557 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 1558 * wiphy at all 1559 * @WIPHY_FLAG_ENFORCE_COMBINATIONS: Set this flag to enforce interface 1560 * combinations for this device. This flag is used for backward 1561 * compatibility only until all drivers advertise combinations and 1562 * they will always be enforced. 1563 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 1564 * by default -- this flag will be set depending on the kernel's default 1565 * on wiphy_new(), but can be changed by the driver if it has a good 1566 * reason to override the default 1567 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 1568 * on a VLAN interface) 1569 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 1570 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 1571 * control port protocol ethertype. The device also honours the 1572 * control_port_no_encrypt flag. 1573 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 1574 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 1575 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 1576 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. 1577 */ 1578 enum wiphy_flags { 1579 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 1580 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 1581 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 1582 WIPHY_FLAG_NETNS_OK = BIT(3), 1583 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 1584 WIPHY_FLAG_4ADDR_AP = BIT(5), 1585 WIPHY_FLAG_4ADDR_STATION = BIT(6), 1586 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 1587 WIPHY_FLAG_IBSS_RSN = BIT(8), 1588 WIPHY_FLAG_MESH_AUTH = BIT(10), 1589 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 1590 WIPHY_FLAG_ENFORCE_COMBINATIONS = BIT(12), 1591 }; 1592 1593 /** 1594 * struct ieee80211_iface_limit - limit on certain interface types 1595 * @max: maximum number of interfaces of these types 1596 * @types: interface types (bits) 1597 */ 1598 struct ieee80211_iface_limit { 1599 u16 max; 1600 u16 types; 1601 }; 1602 1603 /** 1604 * struct ieee80211_iface_combination - possible interface combination 1605 * @limits: limits for the given interface types 1606 * @n_limits: number of limitations 1607 * @num_different_channels: can use up to this many different channels 1608 * @max_interfaces: maximum number of interfaces in total allowed in this 1609 * group 1610 * @beacon_int_infra_match: In this combination, the beacon intervals 1611 * between infrastructure and AP types must match. This is required 1612 * only in special cases. 1613 * 1614 * These examples can be expressed as follows: 1615 * 1616 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 1617 * 1618 * struct ieee80211_iface_limit limits1[] = { 1619 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1620 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 1621 * }; 1622 * struct ieee80211_iface_combination combination1 = { 1623 * .limits = limits1, 1624 * .n_limits = ARRAY_SIZE(limits1), 1625 * .max_interfaces = 2, 1626 * .beacon_int_infra_match = true, 1627 * }; 1628 * 1629 * 1630 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 1631 * 1632 * struct ieee80211_iface_limit limits2[] = { 1633 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 1634 * BIT(NL80211_IFTYPE_P2P_GO), }, 1635 * }; 1636 * struct ieee80211_iface_combination combination2 = { 1637 * .limits = limits2, 1638 * .n_limits = ARRAY_SIZE(limits2), 1639 * .max_interfaces = 8, 1640 * .num_different_channels = 1, 1641 * }; 1642 * 1643 * 1644 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 1645 * This allows for an infrastructure connection and three P2P connections. 1646 * 1647 * struct ieee80211_iface_limit limits3[] = { 1648 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 1649 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 1650 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 1651 * }; 1652 * struct ieee80211_iface_combination combination3 = { 1653 * .limits = limits3, 1654 * .n_limits = ARRAY_SIZE(limits3), 1655 * .max_interfaces = 4, 1656 * .num_different_channels = 2, 1657 * }; 1658 */ 1659 struct ieee80211_iface_combination { 1660 const struct ieee80211_iface_limit *limits; 1661 u32 num_different_channels; 1662 u16 max_interfaces; 1663 u8 n_limits; 1664 bool beacon_int_infra_match; 1665 }; 1666 1667 struct mac_address { 1668 u8 addr[ETH_ALEN]; 1669 }; 1670 1671 struct ieee80211_txrx_stypes { 1672 u16 tx, rx; 1673 }; 1674 1675 /** 1676 * enum wiphy_wowlan_support_flags - WoWLAN support flags 1677 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 1678 * trigger that keeps the device operating as-is and 1679 * wakes up the host on any activity, for example a 1680 * received packet that passed filtering; note that the 1681 * packet should be preserved in that case 1682 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 1683 * (see nl80211.h) 1684 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 1685 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 1686 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 1687 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 1688 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 1689 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 1690 */ 1691 enum wiphy_wowlan_support_flags { 1692 WIPHY_WOWLAN_ANY = BIT(0), 1693 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 1694 WIPHY_WOWLAN_DISCONNECT = BIT(2), 1695 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 1696 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 1697 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 1698 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 1699 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 1700 }; 1701 1702 /** 1703 * struct wiphy_wowlan_support - WoWLAN support data 1704 * @flags: see &enum wiphy_wowlan_support_flags 1705 * @n_patterns: number of supported wakeup patterns 1706 * (see nl80211.h for the pattern definition) 1707 * @pattern_max_len: maximum length of each pattern 1708 * @pattern_min_len: minimum length of each pattern 1709 */ 1710 struct wiphy_wowlan_support { 1711 u32 flags; 1712 int n_patterns; 1713 int pattern_max_len; 1714 int pattern_min_len; 1715 }; 1716 1717 /** 1718 * struct wiphy - wireless hardware description 1719 * @reg_notifier: the driver's regulatory notification callback, 1720 * note that if your driver uses wiphy_apply_custom_regulatory() 1721 * the reg_notifier's request can be passed as NULL 1722 * @regd: the driver's regulatory domain, if one was requested via 1723 * the regulatory_hint() API. This can be used by the driver 1724 * on the reg_notifier() if it chooses to ignore future 1725 * regulatory domain changes caused by other drivers. 1726 * @signal_type: signal type reported in &struct cfg80211_bss. 1727 * @cipher_suites: supported cipher suites 1728 * @n_cipher_suites: number of supported cipher suites 1729 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 1730 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 1731 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 1732 * -1 = fragmentation disabled, only odd values >= 256 used 1733 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 1734 * @_net: the network namespace this wiphy currently lives in 1735 * @perm_addr: permanent MAC address of this device 1736 * @addr_mask: If the device supports multiple MAC addresses by masking, 1737 * set this to a mask with variable bits set to 1, e.g. if the last 1738 * four bits are variable then set it to 00:...:00:0f. The actual 1739 * variable bits shall be determined by the interfaces added, with 1740 * interfaces not matching the mask being rejected to be brought up. 1741 * @n_addresses: number of addresses in @addresses. 1742 * @addresses: If the device has more than one address, set this pointer 1743 * to a list of addresses (6 bytes each). The first one will be used 1744 * by default for perm_addr. In this case, the mask should be set to 1745 * all-zeroes. In this case it is assumed that the device can handle 1746 * the same number of arbitrary MAC addresses. 1747 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 1748 * automatically on wiphy renames 1749 * @dev: (virtual) struct device for this wiphy 1750 * @wext: wireless extension handlers 1751 * @priv: driver private data (sized according to wiphy_new() parameter) 1752 * @interface_modes: bitmask of interfaces types valid for this wiphy, 1753 * must be set by driver 1754 * @iface_combinations: Valid interface combinations array, should not 1755 * list single interface types. 1756 * @n_iface_combinations: number of entries in @iface_combinations array. 1757 * @software_iftypes: bitmask of software interface types, these are not 1758 * subject to any restrictions since they are purely managed in SW. 1759 * @flags: wiphy flags, see &enum wiphy_flags 1760 * @bss_priv_size: each BSS struct has private data allocated with it, 1761 * this variable determines its size 1762 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 1763 * any given scan 1764 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 1765 * for in any given scheduled scan 1766 * @max_scan_ie_len: maximum length of user-controlled IEs device can 1767 * add to probe request frames transmitted during a scan, must not 1768 * include fixed IEs like supported rates 1769 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 1770 * scans 1771 * @coverage_class: current coverage class 1772 * @fw_version: firmware version for ethtool reporting 1773 * @hw_version: hardware version for ethtool reporting 1774 * @max_num_pmkids: maximum number of PMKIDs supported by device 1775 * @privid: a pointer that drivers can use to identify if an arbitrary 1776 * wiphy is theirs, e.g. in global notifiers 1777 * @bands: information about bands/channels supported by this device 1778 * 1779 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 1780 * transmitted through nl80211, points to an array indexed by interface 1781 * type 1782 * 1783 * @available_antennas_tx: bitmap of antennas which are available to be 1784 * configured as TX antennas. Antenna configuration commands will be 1785 * rejected unless this or @available_antennas_rx is set. 1786 * 1787 * @available_antennas_rx: bitmap of antennas which are available to be 1788 * configured as RX antennas. Antenna configuration commands will be 1789 * rejected unless this or @available_antennas_tx is set. 1790 * 1791 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 1792 * may request, if implemented. 1793 * 1794 * @wowlan: WoWLAN support information 1795 */ 1796 struct wiphy { 1797 /* assign these fields before you register the wiphy */ 1798 1799 /* permanent MAC address(es) */ 1800 u8 perm_addr[ETH_ALEN]; 1801 u8 addr_mask[ETH_ALEN]; 1802 1803 struct mac_address *addresses; 1804 1805 const struct ieee80211_txrx_stypes *mgmt_stypes; 1806 1807 const struct ieee80211_iface_combination *iface_combinations; 1808 int n_iface_combinations; 1809 u16 software_iftypes; 1810 1811 u16 n_addresses; 1812 1813 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 1814 u16 interface_modes; 1815 1816 u32 flags; 1817 1818 enum cfg80211_signal_type signal_type; 1819 1820 int bss_priv_size; 1821 u8 max_scan_ssids; 1822 u8 max_sched_scan_ssids; 1823 u16 max_scan_ie_len; 1824 u16 max_sched_scan_ie_len; 1825 1826 int n_cipher_suites; 1827 const u32 *cipher_suites; 1828 1829 u8 retry_short; 1830 u8 retry_long; 1831 u32 frag_threshold; 1832 u32 rts_threshold; 1833 u8 coverage_class; 1834 1835 char fw_version[ETHTOOL_BUSINFO_LEN]; 1836 u32 hw_version; 1837 1838 struct wiphy_wowlan_support wowlan; 1839 1840 u16 max_remain_on_channel_duration; 1841 1842 u8 max_num_pmkids; 1843 1844 u32 available_antennas_tx; 1845 u32 available_antennas_rx; 1846 1847 /* If multiple wiphys are registered and you're handed e.g. 1848 * a regular netdev with assigned ieee80211_ptr, you won't 1849 * know whether it points to a wiphy your driver has registered 1850 * or not. Assign this to something global to your driver to 1851 * help determine whether you own this wiphy or not. */ 1852 const void *privid; 1853 1854 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 1855 1856 /* Lets us get back the wiphy on the callback */ 1857 int (*reg_notifier)(struct wiphy *wiphy, 1858 struct regulatory_request *request); 1859 1860 /* fields below are read-only, assigned by cfg80211 */ 1861 1862 const struct ieee80211_regdomain *regd; 1863 1864 /* the item in /sys/class/ieee80211/ points to this, 1865 * you need use set_wiphy_dev() (see below) */ 1866 struct device dev; 1867 1868 /* dir in debugfs: ieee80211/<wiphyname> */ 1869 struct dentry *debugfsdir; 1870 1871 #ifdef CONFIG_NET_NS 1872 /* the network namespace this phy lives in currently */ 1873 struct net *_net; 1874 #endif 1875 1876 #ifdef CONFIG_CFG80211_WEXT 1877 const struct iw_handler_def *wext; 1878 #endif 1879 1880 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); 1881 }; 1882 1883 static inline struct net *wiphy_net(struct wiphy *wiphy) 1884 { 1885 return read_pnet(&wiphy->_net); 1886 } 1887 1888 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 1889 { 1890 write_pnet(&wiphy->_net, net); 1891 } 1892 1893 /** 1894 * wiphy_priv - return priv from wiphy 1895 * 1896 * @wiphy: the wiphy whose priv pointer to return 1897 */ 1898 static inline void *wiphy_priv(struct wiphy *wiphy) 1899 { 1900 BUG_ON(!wiphy); 1901 return &wiphy->priv; 1902 } 1903 1904 /** 1905 * priv_to_wiphy - return the wiphy containing the priv 1906 * 1907 * @priv: a pointer previously returned by wiphy_priv 1908 */ 1909 static inline struct wiphy *priv_to_wiphy(void *priv) 1910 { 1911 BUG_ON(!priv); 1912 return container_of(priv, struct wiphy, priv); 1913 } 1914 1915 /** 1916 * set_wiphy_dev - set device pointer for wiphy 1917 * 1918 * @wiphy: The wiphy whose device to bind 1919 * @dev: The device to parent it to 1920 */ 1921 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 1922 { 1923 wiphy->dev.parent = dev; 1924 } 1925 1926 /** 1927 * wiphy_dev - get wiphy dev pointer 1928 * 1929 * @wiphy: The wiphy whose device struct to look up 1930 */ 1931 static inline struct device *wiphy_dev(struct wiphy *wiphy) 1932 { 1933 return wiphy->dev.parent; 1934 } 1935 1936 /** 1937 * wiphy_name - get wiphy name 1938 * 1939 * @wiphy: The wiphy whose name to return 1940 */ 1941 static inline const char *wiphy_name(const struct wiphy *wiphy) 1942 { 1943 return dev_name(&wiphy->dev); 1944 } 1945 1946 /** 1947 * wiphy_new - create a new wiphy for use with cfg80211 1948 * 1949 * @ops: The configuration operations for this device 1950 * @sizeof_priv: The size of the private area to allocate 1951 * 1952 * Create a new wiphy and associate the given operations with it. 1953 * @sizeof_priv bytes are allocated for private use. 1954 * 1955 * The returned pointer must be assigned to each netdev's 1956 * ieee80211_ptr for proper operation. 1957 */ 1958 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 1959 1960 /** 1961 * wiphy_register - register a wiphy with cfg80211 1962 * 1963 * @wiphy: The wiphy to register. 1964 * 1965 * Returns a non-negative wiphy index or a negative error code. 1966 */ 1967 extern int wiphy_register(struct wiphy *wiphy); 1968 1969 /** 1970 * wiphy_unregister - deregister a wiphy from cfg80211 1971 * 1972 * @wiphy: The wiphy to unregister. 1973 * 1974 * After this call, no more requests can be made with this priv 1975 * pointer, but the call may sleep to wait for an outstanding 1976 * request that is being handled. 1977 */ 1978 extern void wiphy_unregister(struct wiphy *wiphy); 1979 1980 /** 1981 * wiphy_free - free wiphy 1982 * 1983 * @wiphy: The wiphy to free 1984 */ 1985 extern void wiphy_free(struct wiphy *wiphy); 1986 1987 /* internal structs */ 1988 struct cfg80211_conn; 1989 struct cfg80211_internal_bss; 1990 struct cfg80211_cached_keys; 1991 1992 #define MAX_AUTH_BSSES 4 1993 1994 /** 1995 * struct wireless_dev - wireless per-netdev state 1996 * 1997 * This structure must be allocated by the driver/stack 1998 * that uses the ieee80211_ptr field in struct net_device 1999 * (this is intentional so it can be allocated along with 2000 * the netdev.) 2001 * 2002 * @wiphy: pointer to hardware description 2003 * @iftype: interface type 2004 * @list: (private) Used to collect the interfaces 2005 * @netdev: (private) Used to reference back to the netdev 2006 * @current_bss: (private) Used by the internal configuration code 2007 * @channel: (private) Used by the internal configuration code to track 2008 * user-set AP, monitor and WDS channels for wireless extensions 2009 * @bssid: (private) Used by the internal configuration code 2010 * @ssid: (private) Used by the internal configuration code 2011 * @ssid_len: (private) Used by the internal configuration code 2012 * @mesh_id_len: (private) Used by the internal configuration code 2013 * @mesh_id_up_len: (private) Used by the internal configuration code 2014 * @wext: (private) Used by the internal wireless extensions compat code 2015 * @use_4addr: indicates 4addr mode is used on this interface, must be 2016 * set by driver (if supported) on add_interface BEFORE registering the 2017 * netdev and may otherwise be used by driver read-only, will be update 2018 * by cfg80211 on change_interface 2019 * @mgmt_registrations: list of registrations for management frames 2020 * @mgmt_registrations_lock: lock for the list 2021 * @mtx: mutex used to lock data in this struct 2022 * @cleanup_work: work struct used for cleanup that can't be done directly 2023 * @beacon_interval: beacon interval used on this device for transmitting 2024 * beacons, 0 when not valid 2025 */ 2026 struct wireless_dev { 2027 struct wiphy *wiphy; 2028 enum nl80211_iftype iftype; 2029 2030 /* the remainder of this struct should be private to cfg80211 */ 2031 struct list_head list; 2032 struct net_device *netdev; 2033 2034 struct list_head mgmt_registrations; 2035 spinlock_t mgmt_registrations_lock; 2036 2037 struct mutex mtx; 2038 2039 struct work_struct cleanup_work; 2040 2041 bool use_4addr; 2042 2043 /* currently used for IBSS and SME - might be rearranged later */ 2044 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2045 u8 ssid_len, mesh_id_len, mesh_id_up_len; 2046 enum { 2047 CFG80211_SME_IDLE, 2048 CFG80211_SME_CONNECTING, 2049 CFG80211_SME_CONNECTED, 2050 } sme_state; 2051 struct cfg80211_conn *conn; 2052 struct cfg80211_cached_keys *connect_keys; 2053 2054 struct list_head event_list; 2055 spinlock_t event_lock; 2056 2057 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES]; 2058 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES]; 2059 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 2060 struct ieee80211_channel *channel; 2061 2062 bool ps; 2063 int ps_timeout; 2064 2065 int beacon_interval; 2066 2067 #ifdef CONFIG_CFG80211_WEXT 2068 /* wext data */ 2069 struct { 2070 struct cfg80211_ibss_params ibss; 2071 struct cfg80211_connect_params connect; 2072 struct cfg80211_cached_keys *keys; 2073 u8 *ie; 2074 size_t ie_len; 2075 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 2076 u8 ssid[IEEE80211_MAX_SSID_LEN]; 2077 s8 default_key, default_mgmt_key; 2078 bool prev_bssid_valid; 2079 } wext; 2080 #endif 2081 }; 2082 2083 /** 2084 * wdev_priv - return wiphy priv from wireless_dev 2085 * 2086 * @wdev: The wireless device whose wiphy's priv pointer to return 2087 */ 2088 static inline void *wdev_priv(struct wireless_dev *wdev) 2089 { 2090 BUG_ON(!wdev); 2091 return wiphy_priv(wdev->wiphy); 2092 } 2093 2094 /** 2095 * DOC: Utility functions 2096 * 2097 * cfg80211 offers a number of utility functions that can be useful. 2098 */ 2099 2100 /** 2101 * ieee80211_channel_to_frequency - convert channel number to frequency 2102 * @chan: channel number 2103 * @band: band, necessary due to channel number overlap 2104 */ 2105 extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 2106 2107 /** 2108 * ieee80211_frequency_to_channel - convert frequency to channel number 2109 * @freq: center frequency 2110 */ 2111 extern int ieee80211_frequency_to_channel(int freq); 2112 2113 /* 2114 * Name indirection necessary because the ieee80211 code also has 2115 * a function named "ieee80211_get_channel", so if you include 2116 * cfg80211's header file you get cfg80211's version, if you try 2117 * to include both header files you'll (rightfully!) get a symbol 2118 * clash. 2119 */ 2120 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 2121 int freq); 2122 /** 2123 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 2124 * @wiphy: the struct wiphy to get the channel for 2125 * @freq: the center frequency of the channel 2126 */ 2127 static inline struct ieee80211_channel * 2128 ieee80211_get_channel(struct wiphy *wiphy, int freq) 2129 { 2130 return __ieee80211_get_channel(wiphy, freq); 2131 } 2132 2133 /** 2134 * ieee80211_get_response_rate - get basic rate for a given rate 2135 * 2136 * @sband: the band to look for rates in 2137 * @basic_rates: bitmap of basic rates 2138 * @bitrate: the bitrate for which to find the basic rate 2139 * 2140 * This function returns the basic rate corresponding to a given 2141 * bitrate, that is the next lower bitrate contained in the basic 2142 * rate map, which is, for this function, given as a bitmap of 2143 * indices of rates in the band's bitrate table. 2144 */ 2145 struct ieee80211_rate * 2146 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 2147 u32 basic_rates, int bitrate); 2148 2149 /* 2150 * Radiotap parsing functions -- for controlled injection support 2151 * 2152 * Implemented in net/wireless/radiotap.c 2153 * Documentation in Documentation/networking/radiotap-headers.txt 2154 */ 2155 2156 struct radiotap_align_size { 2157 uint8_t align:4, size:4; 2158 }; 2159 2160 struct ieee80211_radiotap_namespace { 2161 const struct radiotap_align_size *align_size; 2162 int n_bits; 2163 uint32_t oui; 2164 uint8_t subns; 2165 }; 2166 2167 struct ieee80211_radiotap_vendor_namespaces { 2168 const struct ieee80211_radiotap_namespace *ns; 2169 int n_ns; 2170 }; 2171 2172 /** 2173 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 2174 * @this_arg_index: index of current arg, valid after each successful call 2175 * to ieee80211_radiotap_iterator_next() 2176 * @this_arg: pointer to current radiotap arg; it is valid after each 2177 * call to ieee80211_radiotap_iterator_next() but also after 2178 * ieee80211_radiotap_iterator_init() where it will point to 2179 * the beginning of the actual data portion 2180 * @this_arg_size: length of the current arg, for convenience 2181 * @current_namespace: pointer to the current namespace definition 2182 * (or internally %NULL if the current namespace is unknown) 2183 * @is_radiotap_ns: indicates whether the current namespace is the default 2184 * radiotap namespace or not 2185 * 2186 * @_rtheader: pointer to the radiotap header we are walking through 2187 * @_max_length: length of radiotap header in cpu byte ordering 2188 * @_arg_index: next argument index 2189 * @_arg: next argument pointer 2190 * @_next_bitmap: internal pointer to next present u32 2191 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 2192 * @_vns: vendor namespace definitions 2193 * @_next_ns_data: beginning of the next namespace's data 2194 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 2195 * next bitmap word 2196 * 2197 * Describes the radiotap parser state. Fields prefixed with an underscore 2198 * must not be used by users of the parser, only by the parser internally. 2199 */ 2200 2201 struct ieee80211_radiotap_iterator { 2202 struct ieee80211_radiotap_header *_rtheader; 2203 const struct ieee80211_radiotap_vendor_namespaces *_vns; 2204 const struct ieee80211_radiotap_namespace *current_namespace; 2205 2206 unsigned char *_arg, *_next_ns_data; 2207 __le32 *_next_bitmap; 2208 2209 unsigned char *this_arg; 2210 int this_arg_index; 2211 int this_arg_size; 2212 2213 int is_radiotap_ns; 2214 2215 int _max_length; 2216 int _arg_index; 2217 uint32_t _bitmap_shifter; 2218 int _reset_on_ext; 2219 }; 2220 2221 extern int ieee80211_radiotap_iterator_init( 2222 struct ieee80211_radiotap_iterator *iterator, 2223 struct ieee80211_radiotap_header *radiotap_header, 2224 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 2225 2226 extern int ieee80211_radiotap_iterator_next( 2227 struct ieee80211_radiotap_iterator *iterator); 2228 2229 2230 extern const unsigned char rfc1042_header[6]; 2231 extern const unsigned char bridge_tunnel_header[6]; 2232 2233 /** 2234 * ieee80211_get_hdrlen_from_skb - get header length from data 2235 * 2236 * Given an skb with a raw 802.11 header at the data pointer this function 2237 * returns the 802.11 header length in bytes (not including encryption 2238 * headers). If the data in the sk_buff is too short to contain a valid 802.11 2239 * header the function returns 0. 2240 * 2241 * @skb: the frame 2242 */ 2243 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 2244 2245 /** 2246 * ieee80211_hdrlen - get header length in bytes from frame control 2247 * @fc: frame control field in little-endian format 2248 */ 2249 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 2250 2251 /** 2252 * DOC: Data path helpers 2253 * 2254 * In addition to generic utilities, cfg80211 also offers 2255 * functions that help implement the data path for devices 2256 * that do not do the 802.11/802.3 conversion on the device. 2257 */ 2258 2259 /** 2260 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 2261 * @skb: the 802.11 data frame 2262 * @addr: the device MAC address 2263 * @iftype: the virtual interface type 2264 */ 2265 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 2266 enum nl80211_iftype iftype); 2267 2268 /** 2269 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 2270 * @skb: the 802.3 frame 2271 * @addr: the device MAC address 2272 * @iftype: the virtual interface type 2273 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 2274 * @qos: build 802.11 QoS data frame 2275 */ 2276 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 2277 enum nl80211_iftype iftype, u8 *bssid, bool qos); 2278 2279 /** 2280 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 2281 * 2282 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 2283 * 802.3 frames. The @list will be empty if the decode fails. The 2284 * @skb is consumed after the function returns. 2285 * 2286 * @skb: The input IEEE 802.11n A-MSDU frame. 2287 * @list: The output list of 802.3 frames. It must be allocated and 2288 * initialized by by the caller. 2289 * @addr: The device MAC address. 2290 * @iftype: The device interface type. 2291 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 2292 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 2293 */ 2294 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 2295 const u8 *addr, enum nl80211_iftype iftype, 2296 const unsigned int extra_headroom, 2297 bool has_80211_header); 2298 2299 /** 2300 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 2301 * @skb: the data frame 2302 */ 2303 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 2304 2305 /** 2306 * cfg80211_find_ie - find information element in data 2307 * 2308 * @eid: element ID 2309 * @ies: data consisting of IEs 2310 * @len: length of data 2311 * 2312 * This function will return %NULL if the element ID could 2313 * not be found or if the element is invalid (claims to be 2314 * longer than the given data), or a pointer to the first byte 2315 * of the requested element, that is the byte containing the 2316 * element ID. There are no checks on the element length 2317 * other than having to fit into the given data. 2318 */ 2319 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 2320 2321 /** 2322 * DOC: Regulatory enforcement infrastructure 2323 * 2324 * TODO 2325 */ 2326 2327 /** 2328 * regulatory_hint - driver hint to the wireless core a regulatory domain 2329 * @wiphy: the wireless device giving the hint (used only for reporting 2330 * conflicts) 2331 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 2332 * should be in. If @rd is set this should be NULL. Note that if you 2333 * set this to NULL you should still set rd->alpha2 to some accepted 2334 * alpha2. 2335 * 2336 * Wireless drivers can use this function to hint to the wireless core 2337 * what it believes should be the current regulatory domain by 2338 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 2339 * domain should be in or by providing a completely build regulatory domain. 2340 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 2341 * for a regulatory domain structure for the respective country. 2342 * 2343 * The wiphy must have been registered to cfg80211 prior to this call. 2344 * For cfg80211 drivers this means you must first use wiphy_register(), 2345 * for mac80211 drivers you must first use ieee80211_register_hw(). 2346 * 2347 * Drivers should check the return value, its possible you can get 2348 * an -ENOMEM. 2349 */ 2350 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 2351 2352 /** 2353 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 2354 * @wiphy: the wireless device we want to process the regulatory domain on 2355 * @regd: the custom regulatory domain to use for this wiphy 2356 * 2357 * Drivers can sometimes have custom regulatory domains which do not apply 2358 * to a specific country. Drivers can use this to apply such custom regulatory 2359 * domains. This routine must be called prior to wiphy registration. The 2360 * custom regulatory domain will be trusted completely and as such previous 2361 * default channel settings will be disregarded. If no rule is found for a 2362 * channel on the regulatory domain the channel will be disabled. 2363 */ 2364 extern void wiphy_apply_custom_regulatory( 2365 struct wiphy *wiphy, 2366 const struct ieee80211_regdomain *regd); 2367 2368 /** 2369 * freq_reg_info - get regulatory information for the given frequency 2370 * @wiphy: the wiphy for which we want to process this rule for 2371 * @center_freq: Frequency in KHz for which we want regulatory information for 2372 * @desired_bw_khz: the desired max bandwidth you want to use per 2373 * channel. Note that this is still 20 MHz if you want to use HT40 2374 * as HT40 makes use of two channels for its 40 MHz width bandwidth. 2375 * If set to 0 we'll assume you want the standard 20 MHz. 2376 * @reg_rule: the regulatory rule which we have for this frequency 2377 * 2378 * Use this function to get the regulatory rule for a specific frequency on 2379 * a given wireless device. If the device has a specific regulatory domain 2380 * it wants to follow we respect that unless a country IE has been received 2381 * and processed already. 2382 * 2383 * Returns 0 if it was able to find a valid regulatory rule which does 2384 * apply to the given center_freq otherwise it returns non-zero. It will 2385 * also return -ERANGE if we determine the given center_freq does not even have 2386 * a regulatory rule for a frequency range in the center_freq's band. See 2387 * freq_in_rule_band() for our current definition of a band -- this is purely 2388 * subjective and right now its 802.11 specific. 2389 */ 2390 extern int freq_reg_info(struct wiphy *wiphy, 2391 u32 center_freq, 2392 u32 desired_bw_khz, 2393 const struct ieee80211_reg_rule **reg_rule); 2394 2395 /* 2396 * Temporary wext handlers & helper functions 2397 * 2398 * In the future cfg80211 will simply assign the entire wext handler 2399 * structure to netdevs it manages, but we're not there yet. 2400 */ 2401 int cfg80211_wext_giwname(struct net_device *dev, 2402 struct iw_request_info *info, 2403 char *name, char *extra); 2404 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 2405 u32 *mode, char *extra); 2406 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 2407 u32 *mode, char *extra); 2408 int cfg80211_wext_siwscan(struct net_device *dev, 2409 struct iw_request_info *info, 2410 union iwreq_data *wrqu, char *extra); 2411 int cfg80211_wext_giwscan(struct net_device *dev, 2412 struct iw_request_info *info, 2413 struct iw_point *data, char *extra); 2414 int cfg80211_wext_siwmlme(struct net_device *dev, 2415 struct iw_request_info *info, 2416 struct iw_point *data, char *extra); 2417 int cfg80211_wext_giwrange(struct net_device *dev, 2418 struct iw_request_info *info, 2419 struct iw_point *data, char *extra); 2420 int cfg80211_wext_siwgenie(struct net_device *dev, 2421 struct iw_request_info *info, 2422 struct iw_point *data, char *extra); 2423 int cfg80211_wext_siwauth(struct net_device *dev, 2424 struct iw_request_info *info, 2425 struct iw_param *data, char *extra); 2426 int cfg80211_wext_giwauth(struct net_device *dev, 2427 struct iw_request_info *info, 2428 struct iw_param *data, char *extra); 2429 2430 int cfg80211_wext_siwfreq(struct net_device *dev, 2431 struct iw_request_info *info, 2432 struct iw_freq *freq, char *extra); 2433 int cfg80211_wext_giwfreq(struct net_device *dev, 2434 struct iw_request_info *info, 2435 struct iw_freq *freq, char *extra); 2436 int cfg80211_wext_siwessid(struct net_device *dev, 2437 struct iw_request_info *info, 2438 struct iw_point *data, char *ssid); 2439 int cfg80211_wext_giwessid(struct net_device *dev, 2440 struct iw_request_info *info, 2441 struct iw_point *data, char *ssid); 2442 int cfg80211_wext_siwrate(struct net_device *dev, 2443 struct iw_request_info *info, 2444 struct iw_param *rate, char *extra); 2445 int cfg80211_wext_giwrate(struct net_device *dev, 2446 struct iw_request_info *info, 2447 struct iw_param *rate, char *extra); 2448 2449 int cfg80211_wext_siwrts(struct net_device *dev, 2450 struct iw_request_info *info, 2451 struct iw_param *rts, char *extra); 2452 int cfg80211_wext_giwrts(struct net_device *dev, 2453 struct iw_request_info *info, 2454 struct iw_param *rts, char *extra); 2455 int cfg80211_wext_siwfrag(struct net_device *dev, 2456 struct iw_request_info *info, 2457 struct iw_param *frag, char *extra); 2458 int cfg80211_wext_giwfrag(struct net_device *dev, 2459 struct iw_request_info *info, 2460 struct iw_param *frag, char *extra); 2461 int cfg80211_wext_siwretry(struct net_device *dev, 2462 struct iw_request_info *info, 2463 struct iw_param *retry, char *extra); 2464 int cfg80211_wext_giwretry(struct net_device *dev, 2465 struct iw_request_info *info, 2466 struct iw_param *retry, char *extra); 2467 int cfg80211_wext_siwencodeext(struct net_device *dev, 2468 struct iw_request_info *info, 2469 struct iw_point *erq, char *extra); 2470 int cfg80211_wext_siwencode(struct net_device *dev, 2471 struct iw_request_info *info, 2472 struct iw_point *erq, char *keybuf); 2473 int cfg80211_wext_giwencode(struct net_device *dev, 2474 struct iw_request_info *info, 2475 struct iw_point *erq, char *keybuf); 2476 int cfg80211_wext_siwtxpower(struct net_device *dev, 2477 struct iw_request_info *info, 2478 union iwreq_data *data, char *keybuf); 2479 int cfg80211_wext_giwtxpower(struct net_device *dev, 2480 struct iw_request_info *info, 2481 union iwreq_data *data, char *keybuf); 2482 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev); 2483 2484 int cfg80211_wext_siwpower(struct net_device *dev, 2485 struct iw_request_info *info, 2486 struct iw_param *wrq, char *extra); 2487 int cfg80211_wext_giwpower(struct net_device *dev, 2488 struct iw_request_info *info, 2489 struct iw_param *wrq, char *extra); 2490 2491 int cfg80211_wext_siwap(struct net_device *dev, 2492 struct iw_request_info *info, 2493 struct sockaddr *ap_addr, char *extra); 2494 int cfg80211_wext_giwap(struct net_device *dev, 2495 struct iw_request_info *info, 2496 struct sockaddr *ap_addr, char *extra); 2497 2498 int cfg80211_wext_siwpmksa(struct net_device *dev, 2499 struct iw_request_info *info, 2500 struct iw_point *data, char *extra); 2501 2502 /* 2503 * callbacks for asynchronous cfg80211 methods, notification 2504 * functions and BSS handling helpers 2505 */ 2506 2507 /** 2508 * cfg80211_scan_done - notify that scan finished 2509 * 2510 * @request: the corresponding scan request 2511 * @aborted: set to true if the scan was aborted for any reason, 2512 * userspace will be notified of that 2513 */ 2514 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 2515 2516 /** 2517 * cfg80211_sched_scan_results - notify that new scan results are available 2518 * 2519 * @wiphy: the wiphy which got scheduled scan results 2520 */ 2521 void cfg80211_sched_scan_results(struct wiphy *wiphy); 2522 2523 /** 2524 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 2525 * 2526 * @wiphy: the wiphy on which the scheduled scan stopped 2527 * 2528 * The driver can call this function to inform cfg80211 that the 2529 * scheduled scan had to be stopped, for whatever reason. The driver 2530 * is then called back via the sched_scan_stop operation when done. 2531 */ 2532 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 2533 2534 /** 2535 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 2536 * 2537 * @wiphy: the wiphy reporting the BSS 2538 * @channel: The channel the frame was received on 2539 * @mgmt: the management frame (probe response or beacon) 2540 * @len: length of the management frame 2541 * @signal: the signal strength, type depends on the wiphy's signal_type 2542 * @gfp: context flags 2543 * 2544 * This informs cfg80211 that BSS information was found and 2545 * the BSS should be updated/added. 2546 */ 2547 struct cfg80211_bss* 2548 cfg80211_inform_bss_frame(struct wiphy *wiphy, 2549 struct ieee80211_channel *channel, 2550 struct ieee80211_mgmt *mgmt, size_t len, 2551 s32 signal, gfp_t gfp); 2552 2553 /** 2554 * cfg80211_inform_bss - inform cfg80211 of a new BSS 2555 * 2556 * @wiphy: the wiphy reporting the BSS 2557 * @channel: The channel the frame was received on 2558 * @bssid: the BSSID of the BSS 2559 * @timestamp: the TSF timestamp sent by the peer 2560 * @capability: the capability field sent by the peer 2561 * @beacon_interval: the beacon interval announced by the peer 2562 * @ie: additional IEs sent by the peer 2563 * @ielen: length of the additional IEs 2564 * @signal: the signal strength, type depends on the wiphy's signal_type 2565 * @gfp: context flags 2566 * 2567 * This informs cfg80211 that BSS information was found and 2568 * the BSS should be updated/added. 2569 */ 2570 struct cfg80211_bss* 2571 cfg80211_inform_bss(struct wiphy *wiphy, 2572 struct ieee80211_channel *channel, 2573 const u8 *bssid, 2574 u64 timestamp, u16 capability, u16 beacon_interval, 2575 const u8 *ie, size_t ielen, 2576 s32 signal, gfp_t gfp); 2577 2578 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 2579 struct ieee80211_channel *channel, 2580 const u8 *bssid, 2581 const u8 *ssid, size_t ssid_len, 2582 u16 capa_mask, u16 capa_val); 2583 static inline struct cfg80211_bss * 2584 cfg80211_get_ibss(struct wiphy *wiphy, 2585 struct ieee80211_channel *channel, 2586 const u8 *ssid, size_t ssid_len) 2587 { 2588 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 2589 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 2590 } 2591 2592 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy, 2593 struct ieee80211_channel *channel, 2594 const u8 *meshid, size_t meshidlen, 2595 const u8 *meshcfg); 2596 void cfg80211_put_bss(struct cfg80211_bss *bss); 2597 2598 /** 2599 * cfg80211_unlink_bss - unlink BSS from internal data structures 2600 * @wiphy: the wiphy 2601 * @bss: the bss to remove 2602 * 2603 * This function removes the given BSS from the internal data structures 2604 * thereby making it no longer show up in scan results etc. Use this 2605 * function when you detect a BSS is gone. Normally BSSes will also time 2606 * out, so it is not necessary to use this function at all. 2607 */ 2608 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 2609 2610 /** 2611 * cfg80211_send_rx_auth - notification of processed authentication 2612 * @dev: network device 2613 * @buf: authentication frame (header + body) 2614 * @len: length of the frame data 2615 * 2616 * This function is called whenever an authentication has been processed in 2617 * station mode. The driver is required to call either this function or 2618 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 2619 * call. This function may sleep. 2620 */ 2621 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 2622 2623 /** 2624 * cfg80211_send_auth_timeout - notification of timed out authentication 2625 * @dev: network device 2626 * @addr: The MAC address of the device with which the authentication timed out 2627 * 2628 * This function may sleep. 2629 */ 2630 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 2631 2632 /** 2633 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled 2634 * @dev: network device 2635 * @addr: The MAC address of the device with which the authentication timed out 2636 * 2637 * When a pending authentication had no action yet, the driver may decide 2638 * to not send a deauth frame, but in that case must calls this function 2639 * to tell cfg80211 about this decision. It is only valid to call this 2640 * function within the deauth() callback. 2641 */ 2642 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr); 2643 2644 /** 2645 * cfg80211_send_rx_assoc - notification of processed association 2646 * @dev: network device 2647 * @buf: (re)association response frame (header + body) 2648 * @len: length of the frame data 2649 * 2650 * This function is called whenever a (re)association response has been 2651 * processed in station mode. The driver is required to call either this 2652 * function or cfg80211_send_assoc_timeout() to indicate the result of 2653 * cfg80211_ops::assoc() call. This function may sleep. 2654 */ 2655 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len); 2656 2657 /** 2658 * cfg80211_send_assoc_timeout - notification of timed out association 2659 * @dev: network device 2660 * @addr: The MAC address of the device with which the association timed out 2661 * 2662 * This function may sleep. 2663 */ 2664 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 2665 2666 /** 2667 * cfg80211_send_deauth - notification of processed deauthentication 2668 * @dev: network device 2669 * @buf: deauthentication frame (header + body) 2670 * @len: length of the frame data 2671 * 2672 * This function is called whenever deauthentication has been processed in 2673 * station mode. This includes both received deauthentication frames and 2674 * locally generated ones. This function may sleep. 2675 */ 2676 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2677 2678 /** 2679 * __cfg80211_send_deauth - notification of processed deauthentication 2680 * @dev: network device 2681 * @buf: deauthentication frame (header + body) 2682 * @len: length of the frame data 2683 * 2684 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 2685 */ 2686 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2687 2688 /** 2689 * cfg80211_send_disassoc - notification of processed disassociation 2690 * @dev: network device 2691 * @buf: disassociation response frame (header + body) 2692 * @len: length of the frame data 2693 * 2694 * This function is called whenever disassociation has been processed in 2695 * station mode. This includes both received disassociation frames and locally 2696 * generated ones. This function may sleep. 2697 */ 2698 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 2699 2700 /** 2701 * __cfg80211_send_disassoc - notification of processed disassociation 2702 * @dev: network device 2703 * @buf: disassociation response frame (header + body) 2704 * @len: length of the frame data 2705 * 2706 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 2707 */ 2708 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 2709 size_t len); 2710 2711 /** 2712 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication 2713 * @dev: network device 2714 * @buf: deauthentication frame (header + body) 2715 * @len: length of the frame data 2716 * 2717 * This function is called whenever a received Deauthentication frame has been 2718 * dropped in station mode because of MFP being used but the Deauthentication 2719 * frame was not protected. This function may sleep. 2720 */ 2721 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf, 2722 size_t len); 2723 2724 /** 2725 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation 2726 * @dev: network device 2727 * @buf: disassociation frame (header + body) 2728 * @len: length of the frame data 2729 * 2730 * This function is called whenever a received Disassociation frame has been 2731 * dropped in station mode because of MFP being used but the Disassociation 2732 * frame was not protected. This function may sleep. 2733 */ 2734 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf, 2735 size_t len); 2736 2737 /** 2738 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 2739 * @dev: network device 2740 * @addr: The source MAC address of the frame 2741 * @key_type: The key type that the received frame used 2742 * @key_id: Key identifier (0..3). Can be -1 if missing. 2743 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 2744 * @gfp: allocation flags 2745 * 2746 * This function is called whenever the local MAC detects a MIC failure in a 2747 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 2748 * primitive. 2749 */ 2750 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 2751 enum nl80211_key_type key_type, int key_id, 2752 const u8 *tsc, gfp_t gfp); 2753 2754 /** 2755 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 2756 * 2757 * @dev: network device 2758 * @bssid: the BSSID of the IBSS joined 2759 * @gfp: allocation flags 2760 * 2761 * This function notifies cfg80211 that the device joined an IBSS or 2762 * switched to a different BSSID. Before this function can be called, 2763 * either a beacon has to have been received from the IBSS, or one of 2764 * the cfg80211_inform_bss{,_frame} functions must have been called 2765 * with the locally generated beacon -- this guarantees that there is 2766 * always a scan result for this IBSS. cfg80211 will handle the rest. 2767 */ 2768 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 2769 2770 /** 2771 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 2772 * 2773 * @dev: network device 2774 * @macaddr: the MAC address of the new candidate 2775 * @ie: information elements advertised by the peer candidate 2776 * @ie_len: lenght of the information elements buffer 2777 * @gfp: allocation flags 2778 * 2779 * This function notifies cfg80211 that the mesh peer candidate has been 2780 * detected, most likely via a beacon or, less likely, via a probe response. 2781 * cfg80211 then sends a notification to userspace. 2782 */ 2783 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 2784 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 2785 2786 /** 2787 * DOC: RFkill integration 2788 * 2789 * RFkill integration in cfg80211 is almost invisible to drivers, 2790 * as cfg80211 automatically registers an rfkill instance for each 2791 * wireless device it knows about. Soft kill is also translated 2792 * into disconnecting and turning all interfaces off, drivers are 2793 * expected to turn off the device when all interfaces are down. 2794 * 2795 * However, devices may have a hard RFkill line, in which case they 2796 * also need to interact with the rfkill subsystem, via cfg80211. 2797 * They can do this with a few helper functions documented here. 2798 */ 2799 2800 /** 2801 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 2802 * @wiphy: the wiphy 2803 * @blocked: block status 2804 */ 2805 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 2806 2807 /** 2808 * wiphy_rfkill_start_polling - start polling rfkill 2809 * @wiphy: the wiphy 2810 */ 2811 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 2812 2813 /** 2814 * wiphy_rfkill_stop_polling - stop polling rfkill 2815 * @wiphy: the wiphy 2816 */ 2817 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 2818 2819 #ifdef CONFIG_NL80211_TESTMODE 2820 /** 2821 * DOC: Test mode 2822 * 2823 * Test mode is a set of utility functions to allow drivers to 2824 * interact with driver-specific tools to aid, for instance, 2825 * factory programming. 2826 * 2827 * This chapter describes how drivers interact with it, for more 2828 * information see the nl80211 book's chapter on it. 2829 */ 2830 2831 /** 2832 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 2833 * @wiphy: the wiphy 2834 * @approxlen: an upper bound of the length of the data that will 2835 * be put into the skb 2836 * 2837 * This function allocates and pre-fills an skb for a reply to 2838 * the testmode command. Since it is intended for a reply, calling 2839 * it outside of the @testmode_cmd operation is invalid. 2840 * 2841 * The returned skb (or %NULL if any errors happen) is pre-filled 2842 * with the wiphy index and set up in a way that any data that is 2843 * put into the skb (with skb_put(), nla_put() or similar) will end 2844 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that 2845 * needs to be done with the skb is adding data for the corresponding 2846 * userspace tool which can then read that data out of the testdata 2847 * attribute. You must not modify the skb in any other way. 2848 * 2849 * When done, call cfg80211_testmode_reply() with the skb and return 2850 * its error code as the result of the @testmode_cmd operation. 2851 */ 2852 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 2853 int approxlen); 2854 2855 /** 2856 * cfg80211_testmode_reply - send the reply skb 2857 * @skb: The skb, must have been allocated with 2858 * cfg80211_testmode_alloc_reply_skb() 2859 * 2860 * Returns an error code or 0 on success, since calling this 2861 * function will usually be the last thing before returning 2862 * from the @testmode_cmd you should return the error code. 2863 * Note that this function consumes the skb regardless of the 2864 * return value. 2865 */ 2866 int cfg80211_testmode_reply(struct sk_buff *skb); 2867 2868 /** 2869 * cfg80211_testmode_alloc_event_skb - allocate testmode event 2870 * @wiphy: the wiphy 2871 * @approxlen: an upper bound of the length of the data that will 2872 * be put into the skb 2873 * @gfp: allocation flags 2874 * 2875 * This function allocates and pre-fills an skb for an event on the 2876 * testmode multicast group. 2877 * 2878 * The returned skb (or %NULL if any errors happen) is set up in the 2879 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared 2880 * for an event. As there, you should simply add data to it that will 2881 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must 2882 * not modify the skb in any other way. 2883 * 2884 * When done filling the skb, call cfg80211_testmode_event() with the 2885 * skb to send the event. 2886 */ 2887 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 2888 int approxlen, gfp_t gfp); 2889 2890 /** 2891 * cfg80211_testmode_event - send the event 2892 * @skb: The skb, must have been allocated with 2893 * cfg80211_testmode_alloc_event_skb() 2894 * @gfp: allocation flags 2895 * 2896 * This function sends the given @skb, which must have been allocated 2897 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 2898 * consumes it. 2899 */ 2900 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 2901 2902 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 2903 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 2904 #else 2905 #define CFG80211_TESTMODE_CMD(cmd) 2906 #define CFG80211_TESTMODE_DUMP(cmd) 2907 #endif 2908 2909 /** 2910 * cfg80211_connect_result - notify cfg80211 of connection result 2911 * 2912 * @dev: network device 2913 * @bssid: the BSSID of the AP 2914 * @req_ie: association request IEs (maybe be %NULL) 2915 * @req_ie_len: association request IEs length 2916 * @resp_ie: association response IEs (may be %NULL) 2917 * @resp_ie_len: assoc response IEs length 2918 * @status: status code, 0 for successful connection, use 2919 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 2920 * the real status code for failures. 2921 * @gfp: allocation flags 2922 * 2923 * It should be called by the underlying driver whenever connect() has 2924 * succeeded. 2925 */ 2926 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 2927 const u8 *req_ie, size_t req_ie_len, 2928 const u8 *resp_ie, size_t resp_ie_len, 2929 u16 status, gfp_t gfp); 2930 2931 /** 2932 * cfg80211_roamed - notify cfg80211 of roaming 2933 * 2934 * @dev: network device 2935 * @channel: the channel of the new AP 2936 * @bssid: the BSSID of the new AP 2937 * @req_ie: association request IEs (maybe be %NULL) 2938 * @req_ie_len: association request IEs length 2939 * @resp_ie: association response IEs (may be %NULL) 2940 * @resp_ie_len: assoc response IEs length 2941 * @gfp: allocation flags 2942 * 2943 * It should be called by the underlying driver whenever it roamed 2944 * from one AP to another while connected. 2945 */ 2946 void cfg80211_roamed(struct net_device *dev, 2947 struct ieee80211_channel *channel, 2948 const u8 *bssid, 2949 const u8 *req_ie, size_t req_ie_len, 2950 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 2951 2952 /** 2953 * cfg80211_disconnected - notify cfg80211 that connection was dropped 2954 * 2955 * @dev: network device 2956 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 2957 * @ie_len: length of IEs 2958 * @reason: reason code for the disconnection, set it to 0 if unknown 2959 * @gfp: allocation flags 2960 * 2961 * After it calls this function, the driver should enter an idle state 2962 * and not try to connect to any AP any more. 2963 */ 2964 void cfg80211_disconnected(struct net_device *dev, u16 reason, 2965 u8 *ie, size_t ie_len, gfp_t gfp); 2966 2967 /** 2968 * cfg80211_ready_on_channel - notification of remain_on_channel start 2969 * @dev: network device 2970 * @cookie: the request cookie 2971 * @chan: The current channel (from remain_on_channel request) 2972 * @channel_type: Channel type 2973 * @duration: Duration in milliseconds that the driver intents to remain on the 2974 * channel 2975 * @gfp: allocation flags 2976 */ 2977 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, 2978 struct ieee80211_channel *chan, 2979 enum nl80211_channel_type channel_type, 2980 unsigned int duration, gfp_t gfp); 2981 2982 /** 2983 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 2984 * @dev: network device 2985 * @cookie: the request cookie 2986 * @chan: The current channel (from remain_on_channel request) 2987 * @channel_type: Channel type 2988 * @gfp: allocation flags 2989 */ 2990 void cfg80211_remain_on_channel_expired(struct net_device *dev, 2991 u64 cookie, 2992 struct ieee80211_channel *chan, 2993 enum nl80211_channel_type channel_type, 2994 gfp_t gfp); 2995 2996 2997 /** 2998 * cfg80211_new_sta - notify userspace about station 2999 * 3000 * @dev: the netdev 3001 * @mac_addr: the station's address 3002 * @sinfo: the station information 3003 * @gfp: allocation flags 3004 */ 3005 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 3006 struct station_info *sinfo, gfp_t gfp); 3007 3008 /** 3009 * cfg80211_del_sta - notify userspace about deletion of a station 3010 * 3011 * @dev: the netdev 3012 * @mac_addr: the station's address 3013 * @gfp: allocation flags 3014 */ 3015 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 3016 3017 /** 3018 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 3019 * @dev: network device 3020 * @freq: Frequency on which the frame was received in MHz 3021 * @buf: Management frame (header + body) 3022 * @len: length of the frame data 3023 * @gfp: context flags 3024 * 3025 * Returns %true if a user space application has registered for this frame. 3026 * For action frames, that makes it responsible for rejecting unrecognized 3027 * action frames; %false otherwise, in which case for action frames the 3028 * driver is responsible for rejecting the frame. 3029 * 3030 * This function is called whenever an Action frame is received for a station 3031 * mode interface, but is not processed in kernel. 3032 */ 3033 bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf, 3034 size_t len, gfp_t gfp); 3035 3036 /** 3037 * cfg80211_mgmt_tx_status - notification of TX status for management frame 3038 * @dev: network device 3039 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 3040 * @buf: Management frame (header + body) 3041 * @len: length of the frame data 3042 * @ack: Whether frame was acknowledged 3043 * @gfp: context flags 3044 * 3045 * This function is called whenever a management frame was requested to be 3046 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 3047 * transmission attempt. 3048 */ 3049 void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie, 3050 const u8 *buf, size_t len, bool ack, gfp_t gfp); 3051 3052 3053 /** 3054 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 3055 * @dev: network device 3056 * @rssi_event: the triggered RSSI event 3057 * @gfp: context flags 3058 * 3059 * This function is called when a configured connection quality monitoring 3060 * rssi threshold reached event occurs. 3061 */ 3062 void cfg80211_cqm_rssi_notify(struct net_device *dev, 3063 enum nl80211_cqm_rssi_threshold_event rssi_event, 3064 gfp_t gfp); 3065 3066 /** 3067 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 3068 * @dev: network device 3069 * @peer: peer's MAC address 3070 * @num_packets: how many packets were lost -- should be a fixed threshold 3071 * but probably no less than maybe 50, or maybe a throughput dependent 3072 * threshold (to account for temporary interference) 3073 * @gfp: context flags 3074 */ 3075 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 3076 const u8 *peer, u32 num_packets, gfp_t gfp); 3077 3078 /** 3079 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 3080 * @dev: network device 3081 * @bssid: BSSID of AP (to avoid races) 3082 * @replay_ctr: new replay counter 3083 * @gfp: allocation flags 3084 */ 3085 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 3086 const u8 *replay_ctr, gfp_t gfp); 3087 3088 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 3089 3090 /* wiphy_printk helpers, similar to dev_printk */ 3091 3092 #define wiphy_printk(level, wiphy, format, args...) \ 3093 dev_printk(level, &(wiphy)->dev, format, ##args) 3094 #define wiphy_emerg(wiphy, format, args...) \ 3095 dev_emerg(&(wiphy)->dev, format, ##args) 3096 #define wiphy_alert(wiphy, format, args...) \ 3097 dev_alert(&(wiphy)->dev, format, ##args) 3098 #define wiphy_crit(wiphy, format, args...) \ 3099 dev_crit(&(wiphy)->dev, format, ##args) 3100 #define wiphy_err(wiphy, format, args...) \ 3101 dev_err(&(wiphy)->dev, format, ##args) 3102 #define wiphy_warn(wiphy, format, args...) \ 3103 dev_warn(&(wiphy)->dev, format, ##args) 3104 #define wiphy_notice(wiphy, format, args...) \ 3105 dev_notice(&(wiphy)->dev, format, ##args) 3106 #define wiphy_info(wiphy, format, args...) \ 3107 dev_info(&(wiphy)->dev, format, ##args) 3108 3109 #define wiphy_debug(wiphy, format, args...) \ 3110 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 3111 3112 #define wiphy_dbg(wiphy, format, args...) \ 3113 dev_dbg(&(wiphy)->dev, format, ##args) 3114 3115 #if defined(VERBOSE_DEBUG) 3116 #define wiphy_vdbg wiphy_dbg 3117 #else 3118 #define wiphy_vdbg(wiphy, format, args...) \ 3119 ({ \ 3120 if (0) \ 3121 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 3122 0; \ 3123 }) 3124 #endif 3125 3126 /* 3127 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 3128 * of using a WARN/WARN_ON to get the message out, including the 3129 * file/line information and a backtrace. 3130 */ 3131 #define wiphy_WARN(wiphy, format, args...) \ 3132 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 3133 3134 #endif /* __NET_CFG80211_H */ 3135