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 * wireless hardware capability structures 30 */ 31 32/** 33 * enum ieee80211_band - supported frequency bands 34 * 35 * The bands are assigned this way because the supported 36 * bitrates differ in these bands. 37 * 38 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band 39 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) 40 * @IEEE80211_NUM_BANDS: number of defined bands 41 */ 42enum ieee80211_band { 43 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, 44 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, 45 46 /* keep last */ 47 IEEE80211_NUM_BANDS 48}; 49 50/** 51 * enum ieee80211_channel_flags - channel flags 52 * 53 * Channel flags set by the regulatory control code. 54 * 55 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 56 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted 57 * on this channel. 58 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. 59 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 60 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 61 * is not permitted. 62 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 63 * is not permitted. 64 */ 65enum ieee80211_channel_flags { 66 IEEE80211_CHAN_DISABLED = 1<<0, 67 IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, 68 IEEE80211_CHAN_NO_IBSS = 1<<2, 69 IEEE80211_CHAN_RADAR = 1<<3, 70 IEEE80211_CHAN_NO_HT40PLUS = 1<<4, 71 IEEE80211_CHAN_NO_HT40MINUS = 1<<5, 72}; 73 74#define IEEE80211_CHAN_NO_HT40 \ 75 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 76 77/** 78 * struct ieee80211_channel - channel definition 79 * 80 * This structure describes a single channel for use 81 * with cfg80211. 82 * 83 * @center_freq: center frequency in MHz 84 * @hw_value: hardware-specific value for the channel 85 * @flags: channel flags from &enum ieee80211_channel_flags. 86 * @orig_flags: channel flags at registration time, used by regulatory 87 * code to support devices with additional restrictions 88 * @band: band this channel belongs to. 89 * @max_antenna_gain: maximum antenna gain in dBi 90 * @max_power: maximum transmission power (in dBm) 91 * @beacon_found: helper to regulatory code to indicate when a beacon 92 * has been found on this channel. Use regulatory_hint_found_beacon() 93 * to enable this, this is useful only on 5 GHz band. 94 * @orig_mag: internal use 95 * @orig_mpwr: internal use 96 */ 97struct ieee80211_channel { 98 enum ieee80211_band band; 99 u16 center_freq; 100 u16 hw_value; 101 u32 flags; 102 int max_antenna_gain; 103 int max_power; 104 bool beacon_found; 105 u32 orig_flags; 106 int orig_mag, orig_mpwr; 107}; 108 109/** 110 * enum ieee80211_rate_flags - rate flags 111 * 112 * Hardware/specification flags for rates. These are structured 113 * in a way that allows using the same bitrate structure for 114 * different bands/PHY modes. 115 * 116 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short 117 * preamble on this bitrate; only relevant in 2.4GHz band and 118 * with CCK rates. 119 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate 120 * when used with 802.11a (on the 5 GHz band); filled by the 121 * core code when registering the wiphy. 122 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate 123 * when used with 802.11b (on the 2.4 GHz band); filled by the 124 * core code when registering the wiphy. 125 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate 126 * when used with 802.11g (on the 2.4 GHz band); filled by the 127 * core code when registering the wiphy. 128 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. 129 */ 130enum ieee80211_rate_flags { 131 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, 132 IEEE80211_RATE_MANDATORY_A = 1<<1, 133 IEEE80211_RATE_MANDATORY_B = 1<<2, 134 IEEE80211_RATE_MANDATORY_G = 1<<3, 135 IEEE80211_RATE_ERP_G = 1<<4, 136}; 137 138/** 139 * struct ieee80211_rate - bitrate definition 140 * 141 * This structure describes a bitrate that an 802.11 PHY can 142 * operate with. The two values @hw_value and @hw_value_short 143 * are only for driver use when pointers to this structure are 144 * passed around. 145 * 146 * @flags: rate-specific flags 147 * @bitrate: bitrate in units of 100 Kbps 148 * @hw_value: driver/hardware value for this rate 149 * @hw_value_short: driver/hardware value for this rate when 150 * short preamble is used 151 */ 152struct ieee80211_rate { 153 u32 flags; 154 u16 bitrate; 155 u16 hw_value, hw_value_short; 156}; 157 158/** 159 * struct ieee80211_sta_ht_cap - STA's HT capabilities 160 * 161 * This structure describes most essential parameters needed 162 * to describe 802.11n HT capabilities for an STA. 163 * 164 * @ht_supported: is HT supported by the STA 165 * @cap: HT capabilities map as described in 802.11n spec 166 * @ampdu_factor: Maximum A-MPDU length factor 167 * @ampdu_density: Minimum A-MPDU spacing 168 * @mcs: Supported MCS rates 169 */ 170struct ieee80211_sta_ht_cap { 171 u16 cap; /* use IEEE80211_HT_CAP_ */ 172 bool ht_supported; 173 u8 ampdu_factor; 174 u8 ampdu_density; 175 struct ieee80211_mcs_info mcs; 176}; 177 178/** 179 * struct ieee80211_supported_band - frequency band definition 180 * 181 * This structure describes a frequency band a wiphy 182 * is able to operate in. 183 * 184 * @channels: Array of channels the hardware can operate in 185 * in this band. 186 * @band: the band this structure represents 187 * @n_channels: Number of channels in @channels 188 * @bitrates: Array of bitrates the hardware can operate with 189 * in this band. Must be sorted to give a valid "supported 190 * rates" IE, i.e. CCK rates first, then OFDM. 191 * @n_bitrates: Number of bitrates in @bitrates 192 * @ht_cap: HT capabilities in this band 193 */ 194struct ieee80211_supported_band { 195 struct ieee80211_channel *channels; 196 struct ieee80211_rate *bitrates; 197 enum ieee80211_band band; 198 int n_channels; 199 int n_bitrates; 200 struct ieee80211_sta_ht_cap ht_cap; 201}; 202 203/* 204 * Wireless hardware/device configuration structures and methods 205 */ 206 207/** 208 * struct vif_params - describes virtual interface parameters 209 * @mesh_id: mesh ID to use 210 * @mesh_id_len: length of the mesh ID 211 * @use_4addr: use 4-address frames 212 */ 213struct vif_params { 214 u8 *mesh_id; 215 int mesh_id_len; 216 int use_4addr; 217}; 218 219/** 220 * struct key_params - key information 221 * 222 * Information about a key 223 * 224 * @key: key material 225 * @key_len: length of key material 226 * @cipher: cipher suite selector 227 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 228 * with the get_key() callback, must be in little endian, 229 * length given by @seq_len. 230 * @seq_len: length of @seq. 231 */ 232struct key_params { 233 u8 *key; 234 u8 *seq; 235 int key_len; 236 int seq_len; 237 u32 cipher; 238}; 239 240/** 241 * enum survey_info_flags - survey information flags 242 * 243 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 244 * 245 * Used by the driver to indicate which info in &struct survey_info 246 * it has filled in during the get_survey(). 247 */ 248enum survey_info_flags { 249 SURVEY_INFO_NOISE_DBM = 1<<0, 250}; 251 252/** 253 * struct survey_info - channel survey response 254 * 255 * @channel: the channel this survey record reports, mandatory 256 * @filled: bitflag of flags from &enum survey_info_flags 257 * @noise: channel noise in dBm. This and all following fields are 258 * optional 259 * 260 * Used by dump_survey() to report back per-channel survey information. 261 * 262 * This structure can later be expanded with things like 263 * channel duty cycle etc. 264 */ 265struct survey_info { 266 struct ieee80211_channel *channel; 267 u32 filled; 268 s8 noise; 269}; 270 271/** 272 * struct beacon_parameters - beacon parameters 273 * 274 * Used to configure the beacon for an interface. 275 * 276 * @head: head portion of beacon (before TIM IE) 277 * or %NULL if not changed 278 * @tail: tail portion of beacon (after TIM IE) 279 * or %NULL if not changed 280 * @interval: beacon interval or zero if not changed 281 * @dtim_period: DTIM period or zero if not changed 282 * @head_len: length of @head 283 * @tail_len: length of @tail 284 */ 285struct beacon_parameters { 286 u8 *head, *tail; 287 int interval, dtim_period; 288 int head_len, tail_len; 289}; 290 291/** 292 * enum plink_action - actions to perform in mesh peers 293 * 294 * @PLINK_ACTION_INVALID: action 0 is reserved 295 * @PLINK_ACTION_OPEN: start mesh peer link establishment 296 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer 297 */ 298enum plink_actions { 299 PLINK_ACTION_INVALID, 300 PLINK_ACTION_OPEN, 301 PLINK_ACTION_BLOCK, 302}; 303 304/** 305 * struct station_parameters - station parameters 306 * 307 * Used to change and create a new station. 308 * 309 * @vlan: vlan interface station should belong to 310 * @supported_rates: supported rates in IEEE 802.11 format 311 * (or NULL for no change) 312 * @supported_rates_len: number of supported rates 313 * @sta_flags_mask: station flags that changed 314 * (bitmask of BIT(NL80211_STA_FLAG_...)) 315 * @sta_flags_set: station flags values 316 * (bitmask of BIT(NL80211_STA_FLAG_...)) 317 * @listen_interval: listen interval or -1 for no change 318 * @aid: AID or zero for no change 319 * @plink_action: plink action to take 320 * @ht_capa: HT capabilities of station 321 */ 322struct station_parameters { 323 u8 *supported_rates; 324 struct net_device *vlan; 325 u32 sta_flags_mask, sta_flags_set; 326 int listen_interval; 327 u16 aid; 328 u8 supported_rates_len; 329 u8 plink_action; 330 struct ieee80211_ht_cap *ht_capa; 331}; 332 333/** 334 * enum station_info_flags - station information flags 335 * 336 * Used by the driver to indicate which info in &struct station_info 337 * it has filled in during get_station() or dump_station(). 338 * 339 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 340 * @STATION_INFO_RX_BYTES: @rx_bytes filled 341 * @STATION_INFO_TX_BYTES: @tx_bytes filled 342 * @STATION_INFO_LLID: @llid filled 343 * @STATION_INFO_PLID: @plid filled 344 * @STATION_INFO_PLINK_STATE: @plink_state filled 345 * @STATION_INFO_SIGNAL: @signal filled 346 * @STATION_INFO_TX_BITRATE: @tx_bitrate fields are filled 347 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 348 * @STATION_INFO_RX_PACKETS: @rx_packets filled 349 * @STATION_INFO_TX_PACKETS: @tx_packets filled 350 */ 351enum station_info_flags { 352 STATION_INFO_INACTIVE_TIME = 1<<0, 353 STATION_INFO_RX_BYTES = 1<<1, 354 STATION_INFO_TX_BYTES = 1<<2, 355 STATION_INFO_LLID = 1<<3, 356 STATION_INFO_PLID = 1<<4, 357 STATION_INFO_PLINK_STATE = 1<<5, 358 STATION_INFO_SIGNAL = 1<<6, 359 STATION_INFO_TX_BITRATE = 1<<7, 360 STATION_INFO_RX_PACKETS = 1<<8, 361 STATION_INFO_TX_PACKETS = 1<<9, 362}; 363 364/** 365 * enum station_info_rate_flags - bitrate info flags 366 * 367 * Used by the driver to indicate the specific rate transmission 368 * type for 802.11n transmissions. 369 * 370 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled 371 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission 372 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 373 */ 374enum rate_info_flags { 375 RATE_INFO_FLAGS_MCS = 1<<0, 376 RATE_INFO_FLAGS_40_MHZ_WIDTH = 1<<1, 377 RATE_INFO_FLAGS_SHORT_GI = 1<<2, 378}; 379 380/** 381 * struct rate_info - bitrate information 382 * 383 * Information about a receiving or transmitting bitrate 384 * 385 * @flags: bitflag of flags from &enum rate_info_flags 386 * @mcs: mcs index if struct describes a 802.11n bitrate 387 * @legacy: bitrate in 100kbit/s for 802.11abg 388 */ 389struct rate_info { 390 u8 flags; 391 u8 mcs; 392 u16 legacy; 393}; 394 395/** 396 * struct station_info - station information 397 * 398 * Station information filled by driver for get_station() and dump_station. 399 * 400 * @filled: bitflag of flags from &enum station_info_flags 401 * @inactive_time: time since last station activity (tx/rx) in milliseconds 402 * @rx_bytes: bytes received from this station 403 * @tx_bytes: bytes transmitted to this station 404 * @llid: mesh local link id 405 * @plid: mesh peer link id 406 * @plink_state: mesh peer link state 407 * @signal: signal strength of last received packet in dBm 408 * @txrate: current unicast bitrate to this station 409 * @rx_packets: packets received from this station 410 * @tx_packets: packets transmitted to this station 411 * @generation: generation number for nl80211 dumps. 412 * This number should increase every time the list of stations 413 * changes, i.e. when a station is added or removed, so that 414 * userspace can tell whether it got a consistent snapshot. 415 */ 416struct station_info { 417 u32 filled; 418 u32 inactive_time; 419 u32 rx_bytes; 420 u32 tx_bytes; 421 u16 llid; 422 u16 plid; 423 u8 plink_state; 424 s8 signal; 425 struct rate_info txrate; 426 u32 rx_packets; 427 u32 tx_packets; 428 429 int generation; 430}; 431 432/** 433 * enum monitor_flags - monitor flags 434 * 435 * Monitor interface configuration flags. Note that these must be the bits 436 * according to the nl80211 flags. 437 * 438 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 439 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 440 * @MONITOR_FLAG_CONTROL: pass control frames 441 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 442 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 443 */ 444enum monitor_flags { 445 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 446 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 447 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 448 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 449 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 450}; 451 452/** 453 * enum mpath_info_flags - mesh path information flags 454 * 455 * Used by the driver to indicate which info in &struct mpath_info it has filled 456 * in during get_station() or dump_station(). 457 * 458 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 459 * @MPATH_INFO_SN: @sn filled 460 * @MPATH_INFO_METRIC: @metric filled 461 * @MPATH_INFO_EXPTIME: @exptime filled 462 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 463 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 464 * @MPATH_INFO_FLAGS: @flags filled 465 */ 466enum mpath_info_flags { 467 MPATH_INFO_FRAME_QLEN = BIT(0), 468 MPATH_INFO_SN = BIT(1), 469 MPATH_INFO_METRIC = BIT(2), 470 MPATH_INFO_EXPTIME = BIT(3), 471 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 472 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 473 MPATH_INFO_FLAGS = BIT(6), 474}; 475 476/** 477 * struct mpath_info - mesh path information 478 * 479 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 480 * 481 * @filled: bitfield of flags from &enum mpath_info_flags 482 * @frame_qlen: number of queued frames for this destination 483 * @sn: target sequence number 484 * @metric: metric (cost) of this mesh path 485 * @exptime: expiration time for the mesh path from now, in msecs 486 * @flags: mesh path flags 487 * @discovery_timeout: total mesh path discovery timeout, in msecs 488 * @discovery_retries: mesh path discovery retries 489 * @generation: generation number for nl80211 dumps. 490 * This number should increase every time the list of mesh paths 491 * changes, i.e. when a station is added or removed, so that 492 * userspace can tell whether it got a consistent snapshot. 493 */ 494struct mpath_info { 495 u32 filled; 496 u32 frame_qlen; 497 u32 sn; 498 u32 metric; 499 u32 exptime; 500 u32 discovery_timeout; 501 u8 discovery_retries; 502 u8 flags; 503 504 int generation; 505}; 506 507/** 508 * struct bss_parameters - BSS parameters 509 * 510 * Used to change BSS parameters (mainly for AP mode). 511 * 512 * @use_cts_prot: Whether to use CTS protection 513 * (0 = no, 1 = yes, -1 = do not change) 514 * @use_short_preamble: Whether the use of short preambles is allowed 515 * (0 = no, 1 = yes, -1 = do not change) 516 * @use_short_slot_time: Whether the use of short slot time is allowed 517 * (0 = no, 1 = yes, -1 = do not change) 518 * @basic_rates: basic rates in IEEE 802.11 format 519 * (or NULL for no change) 520 * @basic_rates_len: number of basic rates 521 * @ap_isolate: do not forward packets between connected stations 522 */ 523struct bss_parameters { 524 int use_cts_prot; 525 int use_short_preamble; 526 int use_short_slot_time; 527 u8 *basic_rates; 528 u8 basic_rates_len; 529 int ap_isolate; 530}; 531 532struct mesh_config { 533 /* Timeouts in ms */ 534 /* Mesh plink management parameters */ 535 u16 dot11MeshRetryTimeout; 536 u16 dot11MeshConfirmTimeout; 537 u16 dot11MeshHoldingTimeout; 538 u16 dot11MeshMaxPeerLinks; 539 u8 dot11MeshMaxRetries; 540 u8 dot11MeshTTL; 541 bool auto_open_plinks; 542 /* HWMP parameters */ 543 u8 dot11MeshHWMPmaxPREQretries; 544 u32 path_refresh_time; 545 u16 min_discovery_timeout; 546 u32 dot11MeshHWMPactivePathTimeout; 547 u16 dot11MeshHWMPpreqMinInterval; 548 u16 dot11MeshHWMPnetDiameterTraversalTime; 549 u8 dot11MeshHWMPRootMode; 550}; 551 552/** 553 * struct ieee80211_txq_params - TX queue parameters 554 * @queue: TX queue identifier (NL80211_TXQ_Q_*) 555 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 556 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 557 * 1..32767] 558 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 559 * 1..32767] 560 * @aifs: Arbitration interframe space [0..255] 561 */ 562struct ieee80211_txq_params { 563 enum nl80211_txq_q queue; 564 u16 txop; 565 u16 cwmin; 566 u16 cwmax; 567 u8 aifs; 568}; 569 570/* from net/wireless.h */ 571struct wiphy; 572 573/* from net/ieee80211.h */ 574struct ieee80211_channel; 575 576/** 577 * struct cfg80211_ssid - SSID description 578 * @ssid: the SSID 579 * @ssid_len: length of the ssid 580 */ 581struct cfg80211_ssid { 582 u8 ssid[IEEE80211_MAX_SSID_LEN]; 583 u8 ssid_len; 584}; 585 586/** 587 * struct cfg80211_scan_request - scan request description 588 * 589 * @ssids: SSIDs to scan for (active scan only) 590 * @n_ssids: number of SSIDs 591 * @channels: channels to scan on. 592 * @n_channels: total number of channels to scan 593 * @ie: optional information element(s) to add into Probe Request or %NULL 594 * @ie_len: length of ie in octets 595 * @wiphy: the wiphy this was for 596 * @dev: the interface 597 * @aborted: (internal) scan request was notified as aborted 598 */ 599struct cfg80211_scan_request { 600 struct cfg80211_ssid *ssids; 601 int n_ssids; 602 u32 n_channels; 603 const u8 *ie; 604 size_t ie_len; 605 606 /* internal */ 607 struct wiphy *wiphy; 608 struct net_device *dev; 609 bool aborted; 610 611 /* keep last */ 612 struct ieee80211_channel *channels[0]; 613}; 614 615/** 616 * enum cfg80211_signal_type - signal type 617 * 618 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 619 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 620 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 621 */ 622enum cfg80211_signal_type { 623 CFG80211_SIGNAL_TYPE_NONE, 624 CFG80211_SIGNAL_TYPE_MBM, 625 CFG80211_SIGNAL_TYPE_UNSPEC, 626}; 627 628/** 629 * struct cfg80211_bss - BSS description 630 * 631 * This structure describes a BSS (which may also be a mesh network) 632 * for use in scan results and similar. 633 * 634 * @channel: channel this BSS is on 635 * @bssid: BSSID of the BSS 636 * @tsf: timestamp of last received update 637 * @beacon_interval: the beacon interval as from the frame 638 * @capability: the capability field in host byte order 639 * @information_elements: the information elements (Note that there 640 * is no guarantee that these are well-formed!); this is a pointer to 641 * either the beacon_ies or proberesp_ies depending on whether Probe 642 * Response frame has been received 643 * @len_information_elements: total length of the information elements 644 * @beacon_ies: the information elements from the last Beacon frame 645 * @len_beacon_ies: total length of the beacon_ies 646 * @proberesp_ies: the information elements from the last Probe Response frame 647 * @len_proberesp_ies: total length of the proberesp_ies 648 * @signal: signal strength value (type depends on the wiphy's signal_type) 649 * @free_priv: function pointer to free private data 650 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 651 */ 652struct cfg80211_bss { 653 struct ieee80211_channel *channel; 654 655 u8 bssid[ETH_ALEN]; 656 u64 tsf; 657 u16 beacon_interval; 658 u16 capability; 659 u8 *information_elements; 660 size_t len_information_elements; 661 u8 *beacon_ies; 662 size_t len_beacon_ies; 663 u8 *proberesp_ies; 664 size_t len_proberesp_ies; 665 666 s32 signal; 667 668 void (*free_priv)(struct cfg80211_bss *bss); 669 u8 priv[0] __attribute__((__aligned__(sizeof(void *)))); 670}; 671 672/** 673 * ieee80211_bss_get_ie - find IE with given ID 674 * @bss: the bss to search 675 * @ie: the IE ID 676 * Returns %NULL if not found. 677 */ 678const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 679 680 681/** 682 * struct cfg80211_crypto_settings - Crypto settings 683 * @wpa_versions: indicates which, if any, WPA versions are enabled 684 * (from enum nl80211_wpa_versions) 685 * @cipher_group: group key cipher suite (or 0 if unset) 686 * @n_ciphers_pairwise: number of AP supported unicast ciphers 687 * @ciphers_pairwise: unicast key cipher suites 688 * @n_akm_suites: number of AKM suites 689 * @akm_suites: AKM suites 690 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 691 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 692 * required to assume that the port is unauthorized until authorized by 693 * user space. Otherwise, port is marked authorized by default. 694 */ 695struct cfg80211_crypto_settings { 696 u32 wpa_versions; 697 u32 cipher_group; 698 int n_ciphers_pairwise; 699 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 700 int n_akm_suites; 701 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 702 bool control_port; 703}; 704 705/** 706 * struct cfg80211_auth_request - Authentication request data 707 * 708 * This structure provides information needed to complete IEEE 802.11 709 * authentication. 710 * 711 * @bss: The BSS to authenticate with. 712 * @auth_type: Authentication type (algorithm) 713 * @ie: Extra IEs to add to Authentication frame or %NULL 714 * @ie_len: Length of ie buffer in octets 715 * @key_len: length of WEP key for shared key authentication 716 * @key_idx: index of WEP key for shared key authentication 717 * @key: WEP key for shared key authentication 718 * @local_state_change: This is a request for a local state only, i.e., no 719 * Authentication frame is to be transmitted and authentication state is 720 * to be changed without having to wait for a response from the peer STA 721 * (AP). 722 */ 723struct cfg80211_auth_request { 724 struct cfg80211_bss *bss; 725 const u8 *ie; 726 size_t ie_len; 727 enum nl80211_auth_type auth_type; 728 const u8 *key; 729 u8 key_len, key_idx; 730 bool local_state_change; 731}; 732 733/** 734 * struct cfg80211_assoc_request - (Re)Association request data 735 * 736 * This structure provides information needed to complete IEEE 802.11 737 * (re)association. 738 * @bss: The BSS to associate with. 739 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 740 * @ie_len: Length of ie buffer in octets 741 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 742 * @crypto: crypto settings 743 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 744 */ 745struct cfg80211_assoc_request { 746 struct cfg80211_bss *bss; 747 const u8 *ie, *prev_bssid; 748 size_t ie_len; 749 struct cfg80211_crypto_settings crypto; 750 bool use_mfp; 751}; 752 753/** 754 * struct cfg80211_deauth_request - Deauthentication request data 755 * 756 * This structure provides information needed to complete IEEE 802.11 757 * deauthentication. 758 * 759 * @bss: the BSS to deauthenticate from 760 * @ie: Extra IEs to add to Deauthentication frame or %NULL 761 * @ie_len: Length of ie buffer in octets 762 * @reason_code: The reason code for the deauthentication 763 * @local_state_change: This is a request for a local state only, i.e., no 764 * Deauthentication frame is to be transmitted. 765 */ 766struct cfg80211_deauth_request { 767 struct cfg80211_bss *bss; 768 const u8 *ie; 769 size_t ie_len; 770 u16 reason_code; 771 bool local_state_change; 772}; 773 774/** 775 * struct cfg80211_disassoc_request - Disassociation request data 776 * 777 * This structure provides information needed to complete IEEE 802.11 778 * disassocation. 779 * 780 * @bss: the BSS to disassociate from 781 * @ie: Extra IEs to add to Disassociation frame or %NULL 782 * @ie_len: Length of ie buffer in octets 783 * @reason_code: The reason code for the disassociation 784 * @local_state_change: This is a request for a local state only, i.e., no 785 * Disassociation frame is to be transmitted. 786 */ 787struct cfg80211_disassoc_request { 788 struct cfg80211_bss *bss; 789 const u8 *ie; 790 size_t ie_len; 791 u16 reason_code; 792 bool local_state_change; 793}; 794 795/** 796 * struct cfg80211_ibss_params - IBSS parameters 797 * 798 * This structure defines the IBSS parameters for the join_ibss() 799 * method. 800 * 801 * @ssid: The SSID, will always be non-null. 802 * @ssid_len: The length of the SSID, will always be non-zero. 803 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 804 * search for IBSSs with a different BSSID. 805 * @channel: The channel to use if no IBSS can be found to join. 806 * @channel_fixed: The channel should be fixed -- do not search for 807 * IBSSs to join on other channels. 808 * @ie: information element(s) to include in the beacon 809 * @ie_len: length of that 810 * @beacon_interval: beacon interval to use 811 * @privacy: this is a protected network, keys will be configured 812 * after joining 813 * @basic_rates: bitmap of basic rates to use when creating the IBSS 814 */ 815struct cfg80211_ibss_params { 816 u8 *ssid; 817 u8 *bssid; 818 struct ieee80211_channel *channel; 819 u8 *ie; 820 u8 ssid_len, ie_len; 821 u16 beacon_interval; 822 u32 basic_rates; 823 bool channel_fixed; 824 bool privacy; 825}; 826 827/** 828 * struct cfg80211_connect_params - Connection parameters 829 * 830 * This structure provides information needed to complete IEEE 802.11 831 * authentication and association. 832 * 833 * @channel: The channel to use or %NULL if not specified (auto-select based 834 * on scan results) 835 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 836 * results) 837 * @ssid: SSID 838 * @ssid_len: Length of ssid in octets 839 * @auth_type: Authentication type (algorithm) 840 * @ie: IEs for association request 841 * @ie_len: Length of assoc_ie in octets 842 * @privacy: indicates whether privacy-enabled APs should be used 843 * @crypto: crypto settings 844 * @key_len: length of WEP key for shared key authentication 845 * @key_idx: index of WEP key for shared key authentication 846 * @key: WEP key for shared key authentication 847 */ 848struct cfg80211_connect_params { 849 struct ieee80211_channel *channel; 850 u8 *bssid; 851 u8 *ssid; 852 size_t ssid_len; 853 enum nl80211_auth_type auth_type; 854 u8 *ie; 855 size_t ie_len; 856 bool privacy; 857 struct cfg80211_crypto_settings crypto; 858 const u8 *key; 859 u8 key_len, key_idx; 860}; 861 862/** 863 * enum wiphy_params_flags - set_wiphy_params bitfield values 864 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 865 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 866 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 867 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 868 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 869 */ 870enum wiphy_params_flags { 871 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 872 WIPHY_PARAM_RETRY_LONG = 1 << 1, 873 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 874 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 875 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 876}; 877 878/* 879 * cfg80211_bitrate_mask - masks for bitrate control 880 */ 881struct cfg80211_bitrate_mask { 882 struct { 883 u32 legacy; 884 /* TODO: add support for masking MCS rates; e.g.: */ 885 /* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */ 886 } control[IEEE80211_NUM_BANDS]; 887}; 888/** 889 * struct cfg80211_pmksa - PMK Security Association 890 * 891 * This structure is passed to the set/del_pmksa() method for PMKSA 892 * caching. 893 * 894 * @bssid: The AP's BSSID. 895 * @pmkid: The PMK material itself. 896 */ 897struct cfg80211_pmksa { 898 u8 *bssid; 899 u8 *pmkid; 900}; 901 902/** 903 * struct cfg80211_ops - backend description for wireless configuration 904 * 905 * This struct is registered by fullmac card drivers and/or wireless stacks 906 * in order to handle configuration requests on their interfaces. 907 * 908 * All callbacks except where otherwise noted should return 0 909 * on success or a negative error code. 910 * 911 * All operations are currently invoked under rtnl for consistency with the 912 * wireless extensions but this is subject to reevaluation as soon as this 913 * code is used more widely and we have a first user without wext. 914 * 915 * @suspend: wiphy device needs to be suspended 916 * @resume: wiphy device needs to be resumed 917 * 918 * @add_virtual_intf: create a new virtual interface with the given name, 919 * must set the struct wireless_dev's iftype. Beware: You must create 920 * the new netdev in the wiphy's network namespace! 921 * 922 * @del_virtual_intf: remove the virtual interface determined by ifindex. 923 * 924 * @change_virtual_intf: change type/configuration of virtual interface, 925 * keep the struct wireless_dev's iftype updated. 926 * 927 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 928 * when adding a group key. 929 * 930 * @get_key: get information about the key with the given parameters. 931 * @mac_addr will be %NULL when requesting information for a group 932 * key. All pointers given to the @callback function need not be valid 933 * after it returns. This function should return an error if it is 934 * not possible to retrieve the key, -ENOENT if it doesn't exist. 935 * 936 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 937 * and @key_index, return -ENOENT if the key doesn't exist. 938 * 939 * @set_default_key: set the default key on an interface 940 * 941 * @set_default_mgmt_key: set the default management frame key on an interface 942 * 943 * @add_beacon: Add a beacon with given parameters, @head, @interval 944 * and @dtim_period will be valid, @tail is optional. 945 * @set_beacon: Change the beacon parameters for an access point mode 946 * interface. This should reject the call when no beacon has been 947 * configured. 948 * @del_beacon: Remove beacon configuration and stop sending the beacon. 949 * 950 * @add_station: Add a new station. 951 * @del_station: Remove a station; @mac may be NULL to remove all stations. 952 * @change_station: Modify a given station. 953 * @get_station: get station information for the station identified by @mac 954 * @dump_station: dump station callback -- resume dump at index @idx 955 * 956 * @add_mpath: add a fixed mesh path 957 * @del_mpath: delete a given mesh path 958 * @change_mpath: change a given mesh path 959 * @get_mpath: get a mesh path for the given parameters 960 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 961 * 962 * @get_mesh_params: Put the current mesh parameters into *params 963 * 964 * @set_mesh_params: Set mesh parameters. 965 * The mask is a bitfield which tells us which parameters to 966 * set, and which to leave alone. 967 * 968 * @change_bss: Modify parameters for a given BSS. 969 * 970 * @set_txq_params: Set TX queue parameters 971 * 972 * @set_channel: Set channel for a given wireless interface. Some devices 973 * may support multi-channel operation (by channel hopping) so cfg80211 974 * doesn't verify much. Note, however, that the passed netdev may be 975 * %NULL as well if the user requested changing the channel for the 976 * device itself, or for a monitor interface. 977 * 978 * @scan: Request to do a scan. If returning zero, the scan request is given 979 * the driver, and will be valid until passed to cfg80211_scan_done(). 980 * For scan results, call cfg80211_inform_bss(); you can call this outside 981 * the scan/scan_done bracket too. 982 * 983 * @auth: Request to authenticate with the specified peer 984 * @assoc: Request to (re)associate with the specified peer 985 * @deauth: Request to deauthenticate from the specified peer 986 * @disassoc: Request to disassociate from the specified peer 987 * 988 * @connect: Connect to the ESS with the specified parameters. When connected, 989 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 990 * If the connection fails for some reason, call cfg80211_connect_result() 991 * with the status from the AP. 992 * @disconnect: Disconnect from the BSS/ESS. 993 * 994 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 995 * cfg80211_ibss_joined(), also call that function when changing BSSID due 996 * to a merge. 997 * @leave_ibss: Leave the IBSS. 998 * 999 * @set_wiphy_params: Notify that wiphy parameters have changed; 1000 * @changed bitfield (see &enum wiphy_params_flags) describes which values 1001 * have changed. The actual parameter values are available in 1002 * struct wiphy. If returning an error, no value should be changed. 1003 * 1004 * @set_tx_power: set the transmit power according to the parameters 1005 * @get_tx_power: store the current TX power into the dbm variable; 1006 * return 0 if successful 1007 * 1008 * @set_wds_peer: set the WDS peer for a WDS interface 1009 * 1010 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 1011 * functions to adjust rfkill hw state 1012 * 1013 * @dump_survey: get site survey information. 1014 * 1015 * @remain_on_channel: Request the driver to remain awake on the specified 1016 * channel for the specified duration to complete an off-channel 1017 * operation (e.g., public action frame exchange). When the driver is 1018 * ready on the requested channel, it must indicate this with an event 1019 * notification by calling cfg80211_ready_on_channel(). 1020 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 1021 * This allows the operation to be terminated prior to timeout based on 1022 * the duration value. 1023 * @action: Transmit an action frame 1024 * 1025 * @testmode_cmd: run a test mode command 1026 * 1027 * @set_bitrate_mask: set the bitrate mask configuration 1028 * 1029 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 1030 * devices running firmwares capable of generating the (re) association 1031 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 1032 * @del_pmksa: Delete a cached PMKID. 1033 * @flush_pmksa: Flush all cached PMKIDs. 1034 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 1035 * allows the driver to adjust the dynamic ps timeout value. 1036 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 1037 * 1038 */ 1039struct cfg80211_ops { 1040 int (*suspend)(struct wiphy *wiphy); 1041 int (*resume)(struct wiphy *wiphy); 1042 1043 int (*add_virtual_intf)(struct wiphy *wiphy, char *name, 1044 enum nl80211_iftype type, u32 *flags, 1045 struct vif_params *params); 1046 int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev); 1047 int (*change_virtual_intf)(struct wiphy *wiphy, 1048 struct net_device *dev, 1049 enum nl80211_iftype type, u32 *flags, 1050 struct vif_params *params); 1051 1052 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 1053 u8 key_index, const u8 *mac_addr, 1054 struct key_params *params); 1055 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 1056 u8 key_index, const u8 *mac_addr, void *cookie, 1057 void (*callback)(void *cookie, struct key_params*)); 1058 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 1059 u8 key_index, const u8 *mac_addr); 1060 int (*set_default_key)(struct wiphy *wiphy, 1061 struct net_device *netdev, 1062 u8 key_index); 1063 int (*set_default_mgmt_key)(struct wiphy *wiphy, 1064 struct net_device *netdev, 1065 u8 key_index); 1066 1067 int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev, 1068 struct beacon_parameters *info); 1069 int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev, 1070 struct beacon_parameters *info); 1071 int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev); 1072 1073 1074 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 1075 u8 *mac, struct station_parameters *params); 1076 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 1077 u8 *mac); 1078 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 1079 u8 *mac, struct station_parameters *params); 1080 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 1081 u8 *mac, struct station_info *sinfo); 1082 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 1083 int idx, u8 *mac, struct station_info *sinfo); 1084 1085 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 1086 u8 *dst, u8 *next_hop); 1087 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 1088 u8 *dst); 1089 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 1090 u8 *dst, u8 *next_hop); 1091 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 1092 u8 *dst, u8 *next_hop, 1093 struct mpath_info *pinfo); 1094 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 1095 int idx, u8 *dst, u8 *next_hop, 1096 struct mpath_info *pinfo); 1097 int (*get_mesh_params)(struct wiphy *wiphy, 1098 struct net_device *dev, 1099 struct mesh_config *conf); 1100 int (*set_mesh_params)(struct wiphy *wiphy, 1101 struct net_device *dev, 1102 const struct mesh_config *nconf, u32 mask); 1103 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 1104 struct bss_parameters *params); 1105 1106 int (*set_txq_params)(struct wiphy *wiphy, 1107 struct ieee80211_txq_params *params); 1108 1109 int (*set_channel)(struct wiphy *wiphy, struct net_device *dev, 1110 struct ieee80211_channel *chan, 1111 enum nl80211_channel_type channel_type); 1112 1113 int (*scan)(struct wiphy *wiphy, struct net_device *dev, 1114 struct cfg80211_scan_request *request); 1115 1116 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 1117 struct cfg80211_auth_request *req); 1118 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 1119 struct cfg80211_assoc_request *req); 1120 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 1121 struct cfg80211_deauth_request *req, 1122 void *cookie); 1123 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 1124 struct cfg80211_disassoc_request *req, 1125 void *cookie); 1126 1127 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 1128 struct cfg80211_connect_params *sme); 1129 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 1130 u16 reason_code); 1131 1132 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 1133 struct cfg80211_ibss_params *params); 1134 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 1135 1136 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 1137 1138 int (*set_tx_power)(struct wiphy *wiphy, 1139 enum nl80211_tx_power_setting type, int mbm); 1140 int (*get_tx_power)(struct wiphy *wiphy, int *dbm); 1141 1142 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 1143 u8 *addr); 1144 1145 void (*rfkill_poll)(struct wiphy *wiphy); 1146 1147#ifdef CONFIG_NL80211_TESTMODE 1148 int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len); 1149#endif 1150 1151 int (*set_bitrate_mask)(struct wiphy *wiphy, 1152 struct net_device *dev, 1153 const u8 *peer, 1154 const struct cfg80211_bitrate_mask *mask); 1155 1156 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 1157 int idx, struct survey_info *info); 1158 1159 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1160 struct cfg80211_pmksa *pmksa); 1161 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 1162 struct cfg80211_pmksa *pmksa); 1163 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 1164 1165 int (*remain_on_channel)(struct wiphy *wiphy, 1166 struct net_device *dev, 1167 struct ieee80211_channel *chan, 1168 enum nl80211_channel_type channel_type, 1169 unsigned int duration, 1170 u64 *cookie); 1171 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 1172 struct net_device *dev, 1173 u64 cookie); 1174 1175 int (*action)(struct wiphy *wiphy, struct net_device *dev, 1176 struct ieee80211_channel *chan, 1177 enum nl80211_channel_type channel_type, 1178 bool channel_type_valid, 1179 const u8 *buf, size_t len, u64 *cookie); 1180 1181 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 1182 bool enabled, int timeout); 1183 1184 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 1185 struct net_device *dev, 1186 s32 rssi_thold, u32 rssi_hyst); 1187}; 1188 1189/* 1190 * wireless hardware and networking interfaces structures 1191 * and registration/helper functions 1192 */ 1193 1194/** 1195 * enum wiphy_flags - wiphy capability flags 1196 * 1197 * @WIPHY_FLAG_CUSTOM_REGULATORY: tells us the driver for this device 1198 * has its own custom regulatory domain and cannot identify the 1199 * ISO / IEC 3166 alpha2 it belongs to. When this is enabled 1200 * we will disregard the first regulatory hint (when the 1201 * initiator is %REGDOM_SET_BY_CORE). 1202 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will 1203 * ignore regulatory domain settings until it gets its own regulatory 1204 * domain via its regulatory_hint() unless the regulatory hint is 1205 * from a country IE. After its gets its own regulatory domain it will 1206 * only allow further regulatory domain settings to further enhance 1207 * compliance. For example if channel 13 and 14 are disabled by this 1208 * regulatory domain no user regulatory domain can enable these channels 1209 * at a later time. This can be used for devices which do not have 1210 * calibration information guaranteed for frequencies or settings 1211 * outside of its regulatory domain. 1212 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 1213 * that passive scan flags and beaconing flags may not be lifted by 1214 * cfg80211 due to regulatory beacon hints. For more information on beacon 1215 * hints read the documenation for regulatory_hint_found_beacon() 1216 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 1217 * wiphy at all 1218 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 1219 * by default -- this flag will be set depending on the kernel's default 1220 * on wiphy_new(), but can be changed by the driver if it has a good 1221 * reason to override the default 1222 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 1223 * on a VLAN interface) 1224 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 1225 */ 1226enum wiphy_flags { 1227 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 1228 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 1229 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 1230 WIPHY_FLAG_NETNS_OK = BIT(3), 1231 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 1232 WIPHY_FLAG_4ADDR_AP = BIT(5), 1233 WIPHY_FLAG_4ADDR_STATION = BIT(6), 1234}; 1235 1236struct mac_address { 1237 u8 addr[ETH_ALEN]; 1238}; 1239 1240/** 1241 * struct wiphy - wireless hardware description 1242 * @reg_notifier: the driver's regulatory notification callback 1243 * @regd: the driver's regulatory domain, if one was requested via 1244 * the regulatory_hint() API. This can be used by the driver 1245 * on the reg_notifier() if it chooses to ignore future 1246 * regulatory domain changes caused by other drivers. 1247 * @signal_type: signal type reported in &struct cfg80211_bss. 1248 * @cipher_suites: supported cipher suites 1249 * @n_cipher_suites: number of supported cipher suites 1250 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 1251 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 1252 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 1253 * -1 = fragmentation disabled, only odd values >= 256 used 1254 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 1255 * @_net: the network namespace this wiphy currently lives in 1256 * @perm_addr: permanent MAC address of this device 1257 * @addr_mask: If the device supports multiple MAC addresses by masking, 1258 * set this to a mask with variable bits set to 1, e.g. if the last 1259 * four bits are variable then set it to 00:...:00:0f. The actual 1260 * variable bits shall be determined by the interfaces added, with 1261 * interfaces not matching the mask being rejected to be brought up. 1262 * @n_addresses: number of addresses in @addresses. 1263 * @addresses: If the device has more than one address, set this pointer 1264 * to a list of addresses (6 bytes each). The first one will be used 1265 * by default for perm_addr. In this case, the mask should be set to 1266 * all-zeroes. In this case it is assumed that the device can handle 1267 * the same number of arbitrary MAC addresses. 1268 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 1269 * automatically on wiphy renames 1270 * @dev: (virtual) struct device for this wiphy 1271 * @wext: wireless extension handlers 1272 * @priv: driver private data (sized according to wiphy_new() parameter) 1273 * @interface_modes: bitmask of interfaces types valid for this wiphy, 1274 * must be set by driver 1275 * @flags: wiphy flags, see &enum wiphy_flags 1276 * @bss_priv_size: each BSS struct has private data allocated with it, 1277 * this variable determines its size 1278 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 1279 * any given scan 1280 * @max_scan_ie_len: maximum length of user-controlled IEs device can 1281 * add to probe request frames transmitted during a scan, must not 1282 * include fixed IEs like supported rates 1283 * @coverage_class: current coverage class 1284 * @fw_version: firmware version for ethtool reporting 1285 * @hw_version: hardware version for ethtool reporting 1286 * @max_num_pmkids: maximum number of PMKIDs supported by device 1287 * @privid: a pointer that drivers can use to identify if an arbitrary 1288 * wiphy is theirs, e.g. in global notifiers 1289 * @bands: information about bands/channels supported by this device 1290 */ 1291struct wiphy { 1292 /* assign these fields before you register the wiphy */ 1293 1294 /* permanent MAC address(es) */ 1295 u8 perm_addr[ETH_ALEN]; 1296 u8 addr_mask[ETH_ALEN]; 1297 1298 u16 n_addresses; 1299 struct mac_address *addresses; 1300 1301 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 1302 u16 interface_modes; 1303 1304 u32 flags; 1305 1306 enum cfg80211_signal_type signal_type; 1307 1308 int bss_priv_size; 1309 u8 max_scan_ssids; 1310 u16 max_scan_ie_len; 1311 1312 int n_cipher_suites; 1313 const u32 *cipher_suites; 1314 1315 u8 retry_short; 1316 u8 retry_long; 1317 u32 frag_threshold; 1318 u32 rts_threshold; 1319 u8 coverage_class; 1320 1321 char fw_version[ETHTOOL_BUSINFO_LEN]; 1322 u32 hw_version; 1323 1324 u8 max_num_pmkids; 1325 1326 /* If multiple wiphys are registered and you're handed e.g. 1327 * a regular netdev with assigned ieee80211_ptr, you won't 1328 * know whether it points to a wiphy your driver has registered 1329 * or not. Assign this to something global to your driver to 1330 * help determine whether you own this wiphy or not. */ 1331 const void *privid; 1332 1333 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 1334 1335 /* Lets us get back the wiphy on the callback */ 1336 int (*reg_notifier)(struct wiphy *wiphy, 1337 struct regulatory_request *request); 1338 1339 /* fields below are read-only, assigned by cfg80211 */ 1340 1341 const struct ieee80211_regdomain *regd; 1342 1343 /* the item in /sys/class/ieee80211/ points to this, 1344 * you need use set_wiphy_dev() (see below) */ 1345 struct device dev; 1346 1347 /* dir in debugfs: ieee80211/<wiphyname> */ 1348 struct dentry *debugfsdir; 1349 1350#ifdef CONFIG_NET_NS 1351 /* the network namespace this phy lives in currently */ 1352 struct net *_net; 1353#endif 1354 1355#ifdef CONFIG_CFG80211_WEXT 1356 const struct iw_handler_def *wext; 1357#endif 1358 1359 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); 1360}; 1361 1362static inline struct net *wiphy_net(struct wiphy *wiphy) 1363{ 1364 return read_pnet(&wiphy->_net); 1365} 1366 1367static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 1368{ 1369 write_pnet(&wiphy->_net, net); 1370} 1371 1372/** 1373 * wiphy_priv - return priv from wiphy 1374 * 1375 * @wiphy: the wiphy whose priv pointer to return 1376 */ 1377static inline void *wiphy_priv(struct wiphy *wiphy) 1378{ 1379 BUG_ON(!wiphy); 1380 return &wiphy->priv; 1381} 1382 1383/** 1384 * priv_to_wiphy - return the wiphy containing the priv 1385 * 1386 * @priv: a pointer previously returned by wiphy_priv 1387 */ 1388static inline struct wiphy *priv_to_wiphy(void *priv) 1389{ 1390 BUG_ON(!priv); 1391 return container_of(priv, struct wiphy, priv); 1392} 1393 1394/** 1395 * set_wiphy_dev - set device pointer for wiphy 1396 * 1397 * @wiphy: The wiphy whose device to bind 1398 * @dev: The device to parent it to 1399 */ 1400static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 1401{ 1402 wiphy->dev.parent = dev; 1403} 1404 1405/** 1406 * wiphy_dev - get wiphy dev pointer 1407 * 1408 * @wiphy: The wiphy whose device struct to look up 1409 */ 1410static inline struct device *wiphy_dev(struct wiphy *wiphy) 1411{ 1412 return wiphy->dev.parent; 1413} 1414 1415/** 1416 * wiphy_name - get wiphy name 1417 * 1418 * @wiphy: The wiphy whose name to return 1419 */ 1420static inline const char *wiphy_name(const struct wiphy *wiphy) 1421{ 1422 return dev_name(&wiphy->dev); 1423} 1424 1425/** 1426 * wiphy_new - create a new wiphy for use with cfg80211 1427 * 1428 * @ops: The configuration operations for this device 1429 * @sizeof_priv: The size of the private area to allocate 1430 * 1431 * Create a new wiphy and associate the given operations with it. 1432 * @sizeof_priv bytes are allocated for private use. 1433 * 1434 * The returned pointer must be assigned to each netdev's 1435 * ieee80211_ptr for proper operation. 1436 */ 1437struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 1438 1439/** 1440 * wiphy_register - register a wiphy with cfg80211 1441 * 1442 * @wiphy: The wiphy to register. 1443 * 1444 * Returns a non-negative wiphy index or a negative error code. 1445 */ 1446extern int wiphy_register(struct wiphy *wiphy); 1447 1448/** 1449 * wiphy_unregister - deregister a wiphy from cfg80211 1450 * 1451 * @wiphy: The wiphy to unregister. 1452 * 1453 * After this call, no more requests can be made with this priv 1454 * pointer, but the call may sleep to wait for an outstanding 1455 * request that is being handled. 1456 */ 1457extern void wiphy_unregister(struct wiphy *wiphy); 1458 1459/** 1460 * wiphy_free - free wiphy 1461 * 1462 * @wiphy: The wiphy to free 1463 */ 1464extern void wiphy_free(struct wiphy *wiphy); 1465 1466/* internal structs */ 1467struct cfg80211_conn; 1468struct cfg80211_internal_bss; 1469struct cfg80211_cached_keys; 1470 1471#define MAX_AUTH_BSSES 4 1472 1473/** 1474 * struct wireless_dev - wireless per-netdev state 1475 * 1476 * This structure must be allocated by the driver/stack 1477 * that uses the ieee80211_ptr field in struct net_device 1478 * (this is intentional so it can be allocated along with 1479 * the netdev.) 1480 * 1481 * @wiphy: pointer to hardware description 1482 * @iftype: interface type 1483 * @list: (private) Used to collect the interfaces 1484 * @netdev: (private) Used to reference back to the netdev 1485 * @current_bss: (private) Used by the internal configuration code 1486 * @channel: (private) Used by the internal configuration code to track 1487 * user-set AP, monitor and WDS channels for wireless extensions 1488 * @bssid: (private) Used by the internal configuration code 1489 * @ssid: (private) Used by the internal configuration code 1490 * @ssid_len: (private) Used by the internal configuration code 1491 * @wext: (private) Used by the internal wireless extensions compat code 1492 * @use_4addr: indicates 4addr mode is used on this interface, must be 1493 * set by driver (if supported) on add_interface BEFORE registering the 1494 * netdev and may otherwise be used by driver read-only, will be update 1495 * by cfg80211 on change_interface 1496 * @action_registrations: list of registrations for action frames 1497 * @action_registrations_lock: lock for the list 1498 * @mtx: mutex used to lock data in this struct 1499 * @cleanup_work: work struct used for cleanup that can't be done directly 1500 */ 1501struct wireless_dev { 1502 struct wiphy *wiphy; 1503 enum nl80211_iftype iftype; 1504 1505 /* the remainder of this struct should be private to cfg80211 */ 1506 struct list_head list; 1507 struct net_device *netdev; 1508 1509 struct list_head action_registrations; 1510 spinlock_t action_registrations_lock; 1511 1512 struct mutex mtx; 1513 1514 struct work_struct cleanup_work; 1515 1516 bool use_4addr; 1517 1518 /* currently used for IBSS and SME - might be rearranged later */ 1519 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1520 u8 ssid_len; 1521 enum { 1522 CFG80211_SME_IDLE, 1523 CFG80211_SME_CONNECTING, 1524 CFG80211_SME_CONNECTED, 1525 } sme_state; 1526 struct cfg80211_conn *conn; 1527 struct cfg80211_cached_keys *connect_keys; 1528 1529 struct list_head event_list; 1530 spinlock_t event_lock; 1531 1532 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES]; 1533 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES]; 1534 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 1535 struct ieee80211_channel *channel; 1536 1537 bool ps; 1538 int ps_timeout; 1539 1540#ifdef CONFIG_CFG80211_WEXT 1541 /* wext data */ 1542 struct { 1543 struct cfg80211_ibss_params ibss; 1544 struct cfg80211_connect_params connect; 1545 struct cfg80211_cached_keys *keys; 1546 u8 *ie; 1547 size_t ie_len; 1548 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 1549 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1550 s8 default_key, default_mgmt_key; 1551 bool prev_bssid_valid; 1552 } wext; 1553#endif 1554}; 1555 1556/** 1557 * wdev_priv - return wiphy priv from wireless_dev 1558 * 1559 * @wdev: The wireless device whose wiphy's priv pointer to return 1560 */ 1561static inline void *wdev_priv(struct wireless_dev *wdev) 1562{ 1563 BUG_ON(!wdev); 1564 return wiphy_priv(wdev->wiphy); 1565} 1566 1567/* 1568 * Utility functions 1569 */ 1570 1571/** 1572 * ieee80211_channel_to_frequency - convert channel number to frequency 1573 * @chan: channel number 1574 */ 1575extern int ieee80211_channel_to_frequency(int chan); 1576 1577/** 1578 * ieee80211_frequency_to_channel - convert frequency to channel number 1579 * @freq: center frequency 1580 */ 1581extern int ieee80211_frequency_to_channel(int freq); 1582 1583/* 1584 * Name indirection necessary because the ieee80211 code also has 1585 * a function named "ieee80211_get_channel", so if you include 1586 * cfg80211's header file you get cfg80211's version, if you try 1587 * to include both header files you'll (rightfully!) get a symbol 1588 * clash. 1589 */ 1590extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 1591 int freq); 1592/** 1593 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 1594 * @wiphy: the struct wiphy to get the channel for 1595 * @freq: the center frequency of the channel 1596 */ 1597static inline struct ieee80211_channel * 1598ieee80211_get_channel(struct wiphy *wiphy, int freq) 1599{ 1600 return __ieee80211_get_channel(wiphy, freq); 1601} 1602 1603/** 1604 * ieee80211_get_response_rate - get basic rate for a given rate 1605 * 1606 * @sband: the band to look for rates in 1607 * @basic_rates: bitmap of basic rates 1608 * @bitrate: the bitrate for which to find the basic rate 1609 * 1610 * This function returns the basic rate corresponding to a given 1611 * bitrate, that is the next lower bitrate contained in the basic 1612 * rate map, which is, for this function, given as a bitmap of 1613 * indices of rates in the band's bitrate table. 1614 */ 1615struct ieee80211_rate * 1616ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 1617 u32 basic_rates, int bitrate); 1618 1619/* 1620 * Radiotap parsing functions -- for controlled injection support 1621 * 1622 * Implemented in net/wireless/radiotap.c 1623 * Documentation in Documentation/networking/radiotap-headers.txt 1624 */ 1625 1626struct radiotap_align_size { 1627 uint8_t align:4, size:4; 1628}; 1629 1630struct ieee80211_radiotap_namespace { 1631 const struct radiotap_align_size *align_size; 1632 int n_bits; 1633 uint32_t oui; 1634 uint8_t subns; 1635}; 1636 1637struct ieee80211_radiotap_vendor_namespaces { 1638 const struct ieee80211_radiotap_namespace *ns; 1639 int n_ns; 1640}; 1641 1642/** 1643 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 1644 * @this_arg_index: index of current arg, valid after each successful call 1645 * to ieee80211_radiotap_iterator_next() 1646 * @this_arg: pointer to current radiotap arg; it is valid after each 1647 * call to ieee80211_radiotap_iterator_next() but also after 1648 * ieee80211_radiotap_iterator_init() where it will point to 1649 * the beginning of the actual data portion 1650 * @this_arg_size: length of the current arg, for convenience 1651 * @current_namespace: pointer to the current namespace definition 1652 * (or internally %NULL if the current namespace is unknown) 1653 * @is_radiotap_ns: indicates whether the current namespace is the default 1654 * radiotap namespace or not 1655 * 1656 * @_rtheader: pointer to the radiotap header we are walking through 1657 * @_max_length: length of radiotap header in cpu byte ordering 1658 * @_arg_index: next argument index 1659 * @_arg: next argument pointer 1660 * @_next_bitmap: internal pointer to next present u32 1661 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 1662 * @_vns: vendor namespace definitions 1663 * @_next_ns_data: beginning of the next namespace's data 1664 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 1665 * next bitmap word 1666 * 1667 * Describes the radiotap parser state. Fields prefixed with an underscore 1668 * must not be used by users of the parser, only by the parser internally. 1669 */ 1670 1671struct ieee80211_radiotap_iterator { 1672 struct ieee80211_radiotap_header *_rtheader; 1673 const struct ieee80211_radiotap_vendor_namespaces *_vns; 1674 const struct ieee80211_radiotap_namespace *current_namespace; 1675 1676 unsigned char *_arg, *_next_ns_data; 1677 __le32 *_next_bitmap; 1678 1679 unsigned char *this_arg; 1680 int this_arg_index; 1681 int this_arg_size; 1682 1683 int is_radiotap_ns; 1684 1685 int _max_length; 1686 int _arg_index; 1687 uint32_t _bitmap_shifter; 1688 int _reset_on_ext; 1689}; 1690 1691extern int ieee80211_radiotap_iterator_init( 1692 struct ieee80211_radiotap_iterator *iterator, 1693 struct ieee80211_radiotap_header *radiotap_header, 1694 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 1695 1696extern int ieee80211_radiotap_iterator_next( 1697 struct ieee80211_radiotap_iterator *iterator); 1698 1699 1700extern const unsigned char rfc1042_header[6]; 1701extern const unsigned char bridge_tunnel_header[6]; 1702 1703/** 1704 * ieee80211_get_hdrlen_from_skb - get header length from data 1705 * 1706 * Given an skb with a raw 802.11 header at the data pointer this function 1707 * returns the 802.11 header length in bytes (not including encryption 1708 * headers). If the data in the sk_buff is too short to contain a valid 802.11 1709 * header the function returns 0. 1710 * 1711 * @skb: the frame 1712 */ 1713unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 1714 1715/** 1716 * ieee80211_hdrlen - get header length in bytes from frame control 1717 * @fc: frame control field in little-endian format 1718 */ 1719unsigned int ieee80211_hdrlen(__le16 fc); 1720 1721/** 1722 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 1723 * @skb: the 802.11 data frame 1724 * @addr: the device MAC address 1725 * @iftype: the virtual interface type 1726 */ 1727int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 1728 enum nl80211_iftype iftype); 1729 1730/** 1731 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 1732 * @skb: the 802.3 frame 1733 * @addr: the device MAC address 1734 * @iftype: the virtual interface type 1735 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 1736 * @qos: build 802.11 QoS data frame 1737 */ 1738int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 1739 enum nl80211_iftype iftype, u8 *bssid, bool qos); 1740 1741/** 1742 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 1743 * 1744 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 1745 * 802.3 frames. The @list will be empty if the decode fails. The 1746 * @skb is consumed after the function returns. 1747 * 1748 * @skb: The input IEEE 802.11n A-MSDU frame. 1749 * @list: The output list of 802.3 frames. It must be allocated and 1750 * initialized by by the caller. 1751 * @addr: The device MAC address. 1752 * @iftype: The device interface type. 1753 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 1754 */ 1755void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 1756 const u8 *addr, enum nl80211_iftype iftype, 1757 const unsigned int extra_headroom); 1758 1759/** 1760 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 1761 * @skb: the data frame 1762 */ 1763unsigned int cfg80211_classify8021d(struct sk_buff *skb); 1764 1765/** 1766 * cfg80211_find_ie - find information element in data 1767 * 1768 * @eid: element ID 1769 * @ies: data consisting of IEs 1770 * @len: length of data 1771 * 1772 * This function will return %NULL if the element ID could 1773 * not be found or if the element is invalid (claims to be 1774 * longer than the given data), or a pointer to the first byte 1775 * of the requested element, that is the byte containing the 1776 * element ID. There are no checks on the element length 1777 * other than having to fit into the given data. 1778 */ 1779const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 1780 1781/* 1782 * Regulatory helper functions for wiphys 1783 */ 1784 1785/** 1786 * regulatory_hint - driver hint to the wireless core a regulatory domain 1787 * @wiphy: the wireless device giving the hint (used only for reporting 1788 * conflicts) 1789 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 1790 * should be in. If @rd is set this should be NULL. Note that if you 1791 * set this to NULL you should still set rd->alpha2 to some accepted 1792 * alpha2. 1793 * 1794 * Wireless drivers can use this function to hint to the wireless core 1795 * what it believes should be the current regulatory domain by 1796 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 1797 * domain should be in or by providing a completely build regulatory domain. 1798 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 1799 * for a regulatory domain structure for the respective country. 1800 * 1801 * The wiphy must have been registered to cfg80211 prior to this call. 1802 * For cfg80211 drivers this means you must first use wiphy_register(), 1803 * for mac80211 drivers you must first use ieee80211_register_hw(). 1804 * 1805 * Drivers should check the return value, its possible you can get 1806 * an -ENOMEM. 1807 */ 1808extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 1809 1810/** 1811 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 1812 * @wiphy: the wireless device we want to process the regulatory domain on 1813 * @regd: the custom regulatory domain to use for this wiphy 1814 * 1815 * Drivers can sometimes have custom regulatory domains which do not apply 1816 * to a specific country. Drivers can use this to apply such custom regulatory 1817 * domains. This routine must be called prior to wiphy registration. The 1818 * custom regulatory domain will be trusted completely and as such previous 1819 * default channel settings will be disregarded. If no rule is found for a 1820 * channel on the regulatory domain the channel will be disabled. 1821 */ 1822extern void wiphy_apply_custom_regulatory( 1823 struct wiphy *wiphy, 1824 const struct ieee80211_regdomain *regd); 1825 1826/** 1827 * freq_reg_info - get regulatory information for the given frequency 1828 * @wiphy: the wiphy for which we want to process this rule for 1829 * @center_freq: Frequency in KHz for which we want regulatory information for 1830 * @desired_bw_khz: the desired max bandwidth you want to use per 1831 * channel. Note that this is still 20 MHz if you want to use HT40 1832 * as HT40 makes use of two channels for its 40 MHz width bandwidth. 1833 * If set to 0 we'll assume you want the standard 20 MHz. 1834 * @reg_rule: the regulatory rule which we have for this frequency 1835 * 1836 * Use this function to get the regulatory rule for a specific frequency on 1837 * a given wireless device. If the device has a specific regulatory domain 1838 * it wants to follow we respect that unless a country IE has been received 1839 * and processed already. 1840 * 1841 * Returns 0 if it was able to find a valid regulatory rule which does 1842 * apply to the given center_freq otherwise it returns non-zero. It will 1843 * also return -ERANGE if we determine the given center_freq does not even have 1844 * a regulatory rule for a frequency range in the center_freq's band. See 1845 * freq_in_rule_band() for our current definition of a band -- this is purely 1846 * subjective and right now its 802.11 specific. 1847 */ 1848extern int freq_reg_info(struct wiphy *wiphy, 1849 u32 center_freq, 1850 u32 desired_bw_khz, 1851 const struct ieee80211_reg_rule **reg_rule); 1852 1853/* 1854 * Temporary wext handlers & helper functions 1855 * 1856 * In the future cfg80211 will simply assign the entire wext handler 1857 * structure to netdevs it manages, but we're not there yet. 1858 */ 1859int cfg80211_wext_giwname(struct net_device *dev, 1860 struct iw_request_info *info, 1861 char *name, char *extra); 1862int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 1863 u32 *mode, char *extra); 1864int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 1865 u32 *mode, char *extra); 1866int cfg80211_wext_siwscan(struct net_device *dev, 1867 struct iw_request_info *info, 1868 union iwreq_data *wrqu, char *extra); 1869int cfg80211_wext_giwscan(struct net_device *dev, 1870 struct iw_request_info *info, 1871 struct iw_point *data, char *extra); 1872int cfg80211_wext_siwmlme(struct net_device *dev, 1873 struct iw_request_info *info, 1874 struct iw_point *data, char *extra); 1875int cfg80211_wext_giwrange(struct net_device *dev, 1876 struct iw_request_info *info, 1877 struct iw_point *data, char *extra); 1878int cfg80211_wext_siwgenie(struct net_device *dev, 1879 struct iw_request_info *info, 1880 struct iw_point *data, char *extra); 1881int cfg80211_wext_siwauth(struct net_device *dev, 1882 struct iw_request_info *info, 1883 struct iw_param *data, char *extra); 1884int cfg80211_wext_giwauth(struct net_device *dev, 1885 struct iw_request_info *info, 1886 struct iw_param *data, char *extra); 1887 1888int cfg80211_wext_siwfreq(struct net_device *dev, 1889 struct iw_request_info *info, 1890 struct iw_freq *freq, char *extra); 1891int cfg80211_wext_giwfreq(struct net_device *dev, 1892 struct iw_request_info *info, 1893 struct iw_freq *freq, char *extra); 1894int cfg80211_wext_siwessid(struct net_device *dev, 1895 struct iw_request_info *info, 1896 struct iw_point *data, char *ssid); 1897int cfg80211_wext_giwessid(struct net_device *dev, 1898 struct iw_request_info *info, 1899 struct iw_point *data, char *ssid); 1900int cfg80211_wext_siwrate(struct net_device *dev, 1901 struct iw_request_info *info, 1902 struct iw_param *rate, char *extra); 1903int cfg80211_wext_giwrate(struct net_device *dev, 1904 struct iw_request_info *info, 1905 struct iw_param *rate, char *extra); 1906 1907int cfg80211_wext_siwrts(struct net_device *dev, 1908 struct iw_request_info *info, 1909 struct iw_param *rts, char *extra); 1910int cfg80211_wext_giwrts(struct net_device *dev, 1911 struct iw_request_info *info, 1912 struct iw_param *rts, char *extra); 1913int cfg80211_wext_siwfrag(struct net_device *dev, 1914 struct iw_request_info *info, 1915 struct iw_param *frag, char *extra); 1916int cfg80211_wext_giwfrag(struct net_device *dev, 1917 struct iw_request_info *info, 1918 struct iw_param *frag, char *extra); 1919int cfg80211_wext_siwretry(struct net_device *dev, 1920 struct iw_request_info *info, 1921 struct iw_param *retry, char *extra); 1922int cfg80211_wext_giwretry(struct net_device *dev, 1923 struct iw_request_info *info, 1924 struct iw_param *retry, char *extra); 1925int cfg80211_wext_siwencodeext(struct net_device *dev, 1926 struct iw_request_info *info, 1927 struct iw_point *erq, char *extra); 1928int cfg80211_wext_siwencode(struct net_device *dev, 1929 struct iw_request_info *info, 1930 struct iw_point *erq, char *keybuf); 1931int cfg80211_wext_giwencode(struct net_device *dev, 1932 struct iw_request_info *info, 1933 struct iw_point *erq, char *keybuf); 1934int cfg80211_wext_siwtxpower(struct net_device *dev, 1935 struct iw_request_info *info, 1936 union iwreq_data *data, char *keybuf); 1937int cfg80211_wext_giwtxpower(struct net_device *dev, 1938 struct iw_request_info *info, 1939 union iwreq_data *data, char *keybuf); 1940struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev); 1941 1942int cfg80211_wext_siwpower(struct net_device *dev, 1943 struct iw_request_info *info, 1944 struct iw_param *wrq, char *extra); 1945int cfg80211_wext_giwpower(struct net_device *dev, 1946 struct iw_request_info *info, 1947 struct iw_param *wrq, char *extra); 1948 1949int cfg80211_wext_siwap(struct net_device *dev, 1950 struct iw_request_info *info, 1951 struct sockaddr *ap_addr, char *extra); 1952int cfg80211_wext_giwap(struct net_device *dev, 1953 struct iw_request_info *info, 1954 struct sockaddr *ap_addr, char *extra); 1955 1956int cfg80211_wext_siwpmksa(struct net_device *dev, 1957 struct iw_request_info *info, 1958 struct iw_point *data, char *extra); 1959 1960/* 1961 * callbacks for asynchronous cfg80211 methods, notification 1962 * functions and BSS handling helpers 1963 */ 1964 1965/** 1966 * cfg80211_scan_done - notify that scan finished 1967 * 1968 * @request: the corresponding scan request 1969 * @aborted: set to true if the scan was aborted for any reason, 1970 * userspace will be notified of that 1971 */ 1972void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 1973 1974/** 1975 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 1976 * 1977 * @wiphy: the wiphy reporting the BSS 1978 * @channel: The channel the frame was received on 1979 * @mgmt: the management frame (probe response or beacon) 1980 * @len: length of the management frame 1981 * @signal: the signal strength, type depends on the wiphy's signal_type 1982 * @gfp: context flags 1983 * 1984 * This informs cfg80211 that BSS information was found and 1985 * the BSS should be updated/added. 1986 */ 1987struct cfg80211_bss* 1988cfg80211_inform_bss_frame(struct wiphy *wiphy, 1989 struct ieee80211_channel *channel, 1990 struct ieee80211_mgmt *mgmt, size_t len, 1991 s32 signal, gfp_t gfp); 1992 1993/** 1994 * cfg80211_inform_bss - inform cfg80211 of a new BSS 1995 * 1996 * @wiphy: the wiphy reporting the BSS 1997 * @channel: The channel the frame was received on 1998 * @bssid: the BSSID of the BSS 1999 * @timestamp: the TSF timestamp sent by the peer 2000 * @capability: the capability field sent by the peer 2001 * @beacon_interval: the beacon interval announced by the peer 2002 * @ie: additional IEs sent by the peer 2003 * @ielen: length of the additional IEs 2004 * @signal: the signal strength, type depends on the wiphy's signal_type 2005 * @gfp: context flags 2006 * 2007 * This informs cfg80211 that BSS information was found and 2008 * the BSS should be updated/added. 2009 */ 2010struct cfg80211_bss* 2011cfg80211_inform_bss(struct wiphy *wiphy, 2012 struct ieee80211_channel *channel, 2013 const u8 *bssid, 2014 u64 timestamp, u16 capability, u16 beacon_interval, 2015 const u8 *ie, size_t ielen, 2016 s32 signal, gfp_t gfp); 2017 2018struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 2019 struct ieee80211_channel *channel, 2020 const u8 *bssid, 2021 const u8 *ssid, size_t ssid_len, 2022 u16 capa_mask, u16 capa_val); 2023static inline struct cfg80211_bss * 2024cfg80211_get_ibss(struct wiphy *wiphy, 2025 struct ieee80211_channel *channel, 2026 const u8 *ssid, size_t ssid_len) 2027{ 2028 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 2029 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 2030} 2031 2032struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy, 2033 struct ieee80211_channel *channel, 2034 const u8 *meshid, size_t meshidlen, 2035 const u8 *meshcfg); 2036void cfg80211_put_bss(struct cfg80211_bss *bss); 2037 2038/** 2039 * cfg80211_unlink_bss - unlink BSS from internal data structures 2040 * @wiphy: the wiphy 2041 * @bss: the bss to remove 2042 * 2043 * This function removes the given BSS from the internal data structures 2044 * thereby making it no longer show up in scan results etc. Use this 2045 * function when you detect a BSS is gone. Normally BSSes will also time 2046 * out, so it is not necessary to use this function at all. 2047 */ 2048void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 2049 2050/** 2051 * cfg80211_send_rx_auth - notification of processed authentication 2052 * @dev: network device 2053 * @buf: authentication frame (header + body) 2054 * @len: length of the frame data 2055 * 2056 * This function is called whenever an authentication has been processed in 2057 * station mode. The driver is required to call either this function or 2058 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 2059 * call. This function may sleep. 2060 */ 2061void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 2062 2063/** 2064 * cfg80211_send_auth_timeout - notification of timed out authentication 2065 * @dev: network device 2066 * @addr: The MAC address of the device with which the authentication timed out 2067 * 2068 * This function may sleep. 2069 */ 2070void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 2071 2072/** 2073 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled 2074 * @dev: network device 2075 * @addr: The MAC address of the device with which the authentication timed out 2076 * 2077 * When a pending authentication had no action yet, the driver may decide 2078 * to not send a deauth frame, but in that case must calls this function 2079 * to tell cfg80211 about this decision. It is only valid to call this 2080 * function within the deauth() callback. 2081 */ 2082void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr); 2083 2084/** 2085 * cfg80211_send_rx_assoc - notification of processed association 2086 * @dev: network device 2087 * @buf: (re)association response frame (header + body) 2088 * @len: length of the frame data 2089 * 2090 * This function is called whenever a (re)association response has been 2091 * processed in station mode. The driver is required to call either this 2092 * function or cfg80211_send_assoc_timeout() to indicate the result of 2093 * cfg80211_ops::assoc() call. This function may sleep. 2094 */ 2095void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len); 2096 2097/** 2098 * cfg80211_send_assoc_timeout - notification of timed out association 2099 * @dev: network device 2100 * @addr: The MAC address of the device with which the association timed out 2101 * 2102 * This function may sleep. 2103 */ 2104void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 2105 2106/** 2107 * cfg80211_send_deauth - notification of processed deauthentication 2108 * @dev: network device 2109 * @buf: deauthentication frame (header + body) 2110 * @len: length of the frame data 2111 * 2112 * This function is called whenever deauthentication has been processed in 2113 * station mode. This includes both received deauthentication frames and 2114 * locally generated ones. This function may sleep. 2115 */ 2116void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2117 2118/** 2119 * __cfg80211_send_deauth - notification of processed deauthentication 2120 * @dev: network device 2121 * @buf: deauthentication frame (header + body) 2122 * @len: length of the frame data 2123 * 2124 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 2125 */ 2126void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2127 2128/** 2129 * cfg80211_send_disassoc - notification of processed disassociation 2130 * @dev: network device 2131 * @buf: disassociation response frame (header + body) 2132 * @len: length of the frame data 2133 * 2134 * This function is called whenever disassociation has been processed in 2135 * station mode. This includes both received disassociation frames and locally 2136 * generated ones. This function may sleep. 2137 */ 2138void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 2139 2140/** 2141 * __cfg80211_send_disassoc - notification of processed disassociation 2142 * @dev: network device 2143 * @buf: disassociation response frame (header + body) 2144 * @len: length of the frame data 2145 * 2146 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 2147 */ 2148void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 2149 size_t len); 2150 2151/** 2152 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 2153 * @dev: network device 2154 * @addr: The source MAC address of the frame 2155 * @key_type: The key type that the received frame used 2156 * @key_id: Key identifier (0..3) 2157 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 2158 * @gfp: allocation flags 2159 * 2160 * This function is called whenever the local MAC detects a MIC failure in a 2161 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 2162 * primitive. 2163 */ 2164void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 2165 enum nl80211_key_type key_type, int key_id, 2166 const u8 *tsc, gfp_t gfp); 2167 2168/** 2169 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 2170 * 2171 * @dev: network device 2172 * @bssid: the BSSID of the IBSS joined 2173 * @gfp: allocation flags 2174 * 2175 * This function notifies cfg80211 that the device joined an IBSS or 2176 * switched to a different BSSID. Before this function can be called, 2177 * either a beacon has to have been received from the IBSS, or one of 2178 * the cfg80211_inform_bss{,_frame} functions must have been called 2179 * with the locally generated beacon -- this guarantees that there is 2180 * always a scan result for this IBSS. cfg80211 will handle the rest. 2181 */ 2182void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 2183 2184/** 2185 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 2186 * @wiphy: the wiphy 2187 * @blocked: block status 2188 */ 2189void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 2190 2191/** 2192 * wiphy_rfkill_start_polling - start polling rfkill 2193 * @wiphy: the wiphy 2194 */ 2195void wiphy_rfkill_start_polling(struct wiphy *wiphy); 2196 2197/** 2198 * wiphy_rfkill_stop_polling - stop polling rfkill 2199 * @wiphy: the wiphy 2200 */ 2201void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 2202 2203#ifdef CONFIG_NL80211_TESTMODE 2204/** 2205 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 2206 * @wiphy: the wiphy 2207 * @approxlen: an upper bound of the length of the data that will 2208 * be put into the skb 2209 * 2210 * This function allocates and pre-fills an skb for a reply to 2211 * the testmode command. Since it is intended for a reply, calling 2212 * it outside of the @testmode_cmd operation is invalid. 2213 * 2214 * The returned skb (or %NULL if any errors happen) is pre-filled 2215 * with the wiphy index and set up in a way that any data that is 2216 * put into the skb (with skb_put(), nla_put() or similar) will end 2217 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that 2218 * needs to be done with the skb is adding data for the corresponding 2219 * userspace tool which can then read that data out of the testdata 2220 * attribute. You must not modify the skb in any other way. 2221 * 2222 * When done, call cfg80211_testmode_reply() with the skb and return 2223 * its error code as the result of the @testmode_cmd operation. 2224 */ 2225struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 2226 int approxlen); 2227 2228/** 2229 * cfg80211_testmode_reply - send the reply skb 2230 * @skb: The skb, must have been allocated with 2231 * cfg80211_testmode_alloc_reply_skb() 2232 * 2233 * Returns an error code or 0 on success, since calling this 2234 * function will usually be the last thing before returning 2235 * from the @testmode_cmd you should return the error code. 2236 * Note that this function consumes the skb regardless of the 2237 * return value. 2238 */ 2239int cfg80211_testmode_reply(struct sk_buff *skb); 2240 2241/** 2242 * cfg80211_testmode_alloc_event_skb - allocate testmode event 2243 * @wiphy: the wiphy 2244 * @approxlen: an upper bound of the length of the data that will 2245 * be put into the skb 2246 * @gfp: allocation flags 2247 * 2248 * This function allocates and pre-fills an skb for an event on the 2249 * testmode multicast group. 2250 * 2251 * The returned skb (or %NULL if any errors happen) is set up in the 2252 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared 2253 * for an event. As there, you should simply add data to it that will 2254 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must 2255 * not modify the skb in any other way. 2256 * 2257 * When done filling the skb, call cfg80211_testmode_event() with the 2258 * skb to send the event. 2259 */ 2260struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 2261 int approxlen, gfp_t gfp); 2262 2263/** 2264 * cfg80211_testmode_event - send the event 2265 * @skb: The skb, must have been allocated with 2266 * cfg80211_testmode_alloc_event_skb() 2267 * @gfp: allocation flags 2268 * 2269 * This function sends the given @skb, which must have been allocated 2270 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 2271 * consumes it. 2272 */ 2273void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 2274 2275#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 2276#else 2277#define CFG80211_TESTMODE_CMD(cmd) 2278#endif 2279 2280/** 2281 * cfg80211_connect_result - notify cfg80211 of connection result 2282 * 2283 * @dev: network device 2284 * @bssid: the BSSID of the AP 2285 * @req_ie: association request IEs (maybe be %NULL) 2286 * @req_ie_len: association request IEs length 2287 * @resp_ie: association response IEs (may be %NULL) 2288 * @resp_ie_len: assoc response IEs length 2289 * @status: status code, 0 for successful connection, use 2290 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 2291 * the real status code for failures. 2292 * @gfp: allocation flags 2293 * 2294 * It should be called by the underlying driver whenever connect() has 2295 * succeeded. 2296 */ 2297void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 2298 const u8 *req_ie, size_t req_ie_len, 2299 const u8 *resp_ie, size_t resp_ie_len, 2300 u16 status, gfp_t gfp); 2301 2302/** 2303 * cfg80211_roamed - notify cfg80211 of roaming 2304 * 2305 * @dev: network device 2306 * @bssid: the BSSID of the new AP 2307 * @req_ie: association request IEs (maybe be %NULL) 2308 * @req_ie_len: association request IEs length 2309 * @resp_ie: association response IEs (may be %NULL) 2310 * @resp_ie_len: assoc response IEs length 2311 * @gfp: allocation flags 2312 * 2313 * It should be called by the underlying driver whenever it roamed 2314 * from one AP to another while connected. 2315 */ 2316void cfg80211_roamed(struct net_device *dev, const u8 *bssid, 2317 const u8 *req_ie, size_t req_ie_len, 2318 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 2319 2320/** 2321 * cfg80211_disconnected - notify cfg80211 that connection was dropped 2322 * 2323 * @dev: network device 2324 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 2325 * @ie_len: length of IEs 2326 * @reason: reason code for the disconnection, set it to 0 if unknown 2327 * @gfp: allocation flags 2328 * 2329 * After it calls this function, the driver should enter an idle state 2330 * and not try to connect to any AP any more. 2331 */ 2332void cfg80211_disconnected(struct net_device *dev, u16 reason, 2333 u8 *ie, size_t ie_len, gfp_t gfp); 2334 2335/** 2336 * cfg80211_ready_on_channel - notification of remain_on_channel start 2337 * @dev: network device 2338 * @cookie: the request cookie 2339 * @chan: The current channel (from remain_on_channel request) 2340 * @channel_type: Channel type 2341 * @duration: Duration in milliseconds that the driver intents to remain on the 2342 * channel 2343 * @gfp: allocation flags 2344 */ 2345void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, 2346 struct ieee80211_channel *chan, 2347 enum nl80211_channel_type channel_type, 2348 unsigned int duration, gfp_t gfp); 2349 2350/** 2351 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 2352 * @dev: network device 2353 * @cookie: the request cookie 2354 * @chan: The current channel (from remain_on_channel request) 2355 * @channel_type: Channel type 2356 * @gfp: allocation flags 2357 */ 2358void cfg80211_remain_on_channel_expired(struct net_device *dev, 2359 u64 cookie, 2360 struct ieee80211_channel *chan, 2361 enum nl80211_channel_type channel_type, 2362 gfp_t gfp); 2363 2364 2365/** 2366 * cfg80211_new_sta - notify userspace about station 2367 * 2368 * @dev: the netdev 2369 * @mac_addr: the station's address 2370 * @sinfo: the station information 2371 * @gfp: allocation flags 2372 */ 2373void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 2374 struct station_info *sinfo, gfp_t gfp); 2375 2376/** 2377 * cfg80211_rx_action - notification of received, unprocessed Action frame 2378 * @dev: network device 2379 * @freq: Frequency on which the frame was received in MHz 2380 * @buf: Action frame (header + body) 2381 * @len: length of the frame data 2382 * @gfp: context flags 2383 * Returns %true if a user space application is responsible for rejecting the 2384 * unrecognized Action frame; %false if no such application is registered 2385 * (i.e., the driver is responsible for rejecting the unrecognized Action 2386 * frame) 2387 * 2388 * This function is called whenever an Action frame is received for a station 2389 * mode interface, but is not processed in kernel. 2390 */ 2391bool cfg80211_rx_action(struct net_device *dev, int freq, const u8 *buf, 2392 size_t len, gfp_t gfp); 2393 2394/** 2395 * cfg80211_action_tx_status - notification of TX status for Action frame 2396 * @dev: network device 2397 * @cookie: Cookie returned by cfg80211_ops::action() 2398 * @buf: Action frame (header + body) 2399 * @len: length of the frame data 2400 * @ack: Whether frame was acknowledged 2401 * @gfp: context flags 2402 * 2403 * This function is called whenever an Action frame was requested to be 2404 * transmitted with cfg80211_ops::action() to report the TX status of the 2405 * transmission attempt. 2406 */ 2407void cfg80211_action_tx_status(struct net_device *dev, u64 cookie, 2408 const u8 *buf, size_t len, bool ack, gfp_t gfp); 2409 2410 2411/** 2412 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 2413 * @dev: network device 2414 * @rssi_event: the triggered RSSI event 2415 * @gfp: context flags 2416 * 2417 * This function is called when a configured connection quality monitoring 2418 * rssi threshold reached event occurs. 2419 */ 2420void cfg80211_cqm_rssi_notify(struct net_device *dev, 2421 enum nl80211_cqm_rssi_threshold_event rssi_event, 2422 gfp_t gfp); 2423 2424#ifdef __KERNEL__ 2425 2426/* Logging, debugging and troubleshooting/diagnostic helpers. */ 2427 2428/* wiphy_printk helpers, similar to dev_printk */ 2429 2430#define wiphy_printk(level, wiphy, format, args...) \ 2431 printk(level "%s: " format, wiphy_name(wiphy), ##args) 2432#define wiphy_emerg(wiphy, format, args...) \ 2433 wiphy_printk(KERN_EMERG, wiphy, format, ##args) 2434#define wiphy_alert(wiphy, format, args...) \ 2435 wiphy_printk(KERN_ALERT, wiphy, format, ##args) 2436#define wiphy_crit(wiphy, format, args...) \ 2437 wiphy_printk(KERN_CRIT, wiphy, format, ##args) 2438#define wiphy_err(wiphy, format, args...) \ 2439 wiphy_printk(KERN_ERR, wiphy, format, ##args) 2440#define wiphy_warn(wiphy, format, args...) \ 2441 wiphy_printk(KERN_WARNING, wiphy, format, ##args) 2442#define wiphy_notice(wiphy, format, args...) \ 2443 wiphy_printk(KERN_NOTICE, wiphy, format, ##args) 2444#define wiphy_info(wiphy, format, args...) \ 2445 wiphy_printk(KERN_INFO, wiphy, format, ##args) 2446 2447int wiphy_debug(const struct wiphy *wiphy, const char *format, ...) 2448 __attribute__ ((format (printf, 2, 3))); 2449 2450#if defined(DEBUG) 2451#define wiphy_dbg(wiphy, format, args...) \ 2452 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 2453#elif defined(CONFIG_DYNAMIC_DEBUG) 2454#define wiphy_dbg(wiphy, format, args...) \ 2455 dynamic_pr_debug("%s: " format, wiphy_name(wiphy), ##args) 2456#else 2457#define wiphy_dbg(wiphy, format, args...) \ 2458({ \ 2459 if (0) \ 2460 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 2461 0; \ 2462}) 2463#endif 2464 2465#if defined(VERBOSE_DEBUG) 2466#define wiphy_vdbg wiphy_dbg 2467#else 2468 2469#define wiphy_vdbg(wiphy, format, args...) \ 2470({ \ 2471 if (0) \ 2472 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 2473 0; \ 2474}) 2475#endif 2476 2477/* 2478 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 2479 * of using a WARN/WARN_ON to get the message out, including the 2480 * file/line information and a backtrace. 2481 */ 2482#define wiphy_WARN(wiphy, format, args...) \ 2483 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 2484 2485#endif 2486 2487#endif /* __NET_CFG80211_H */ 2488