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 */ 42 enum 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 */ 65 enum 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 */ 97 struct 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 */ 130 enum 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 */ 152 struct 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 */ 170 struct 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 */ 194 struct 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 */ 213 struct 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 */ 232 struct 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 */ 248 enum 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 */ 265 struct 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 */ 285 struct 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 */ 298 enum 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 */ 322 struct 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 */ 351 enum 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 */ 374 enum 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 */ 389 struct 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 */ 416 struct 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 */ 444 enum 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 */ 466 enum 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 */ 494 struct 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 */ 523 struct 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 }; 531 532 struct 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 */ 562 struct 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 */ 571 struct wiphy; 572 573 /* from net/ieee80211.h */ 574 struct ieee80211_channel; 575 576 /** 577 * struct cfg80211_ssid - SSID description 578 * @ssid: the SSID 579 * @ssid_len: length of the ssid 580 */ 581 struct 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 */ 599 struct 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 */ 622 enum 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 */ 652 struct 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 */ 678 const 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 */ 695 struct 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 */ 723 struct 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 */ 745 struct 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 */ 766 struct 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 */ 787 struct 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 */ 815 struct 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 */ 848 struct 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 */ 870 enum 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 */ 881 struct 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 */ 897 struct 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 */ 1039 struct 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(). After its gets its own regulatory 1205 * domain it will only allow further regulatory domain settings to 1206 * further enhance compliance. For example if channel 13 and 14 are 1207 * disabled by this regulatory domain no user regulatory domain can 1208 * enable these channels at a later time. This can be used for devices 1209 * which do not have calibration information gauranteed for frequencies 1210 * or settings outside of its regulatory domain. 1211 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure 1212 * that passive scan flags and beaconing flags may not be lifted by 1213 * cfg80211 due to regulatory beacon hints. For more information on beacon 1214 * hints read the documenation for regulatory_hint_found_beacon() 1215 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 1216 * wiphy at all 1217 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 1218 * by default -- this flag will be set depending on the kernel's default 1219 * on wiphy_new(), but can be changed by the driver if it has a good 1220 * reason to override the default 1221 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 1222 * on a VLAN interface) 1223 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 1224 */ 1225 enum wiphy_flags { 1226 WIPHY_FLAG_CUSTOM_REGULATORY = BIT(0), 1227 WIPHY_FLAG_STRICT_REGULATORY = BIT(1), 1228 WIPHY_FLAG_DISABLE_BEACON_HINTS = BIT(2), 1229 WIPHY_FLAG_NETNS_OK = BIT(3), 1230 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 1231 WIPHY_FLAG_4ADDR_AP = BIT(5), 1232 WIPHY_FLAG_4ADDR_STATION = BIT(6), 1233 }; 1234 1235 struct mac_address { 1236 u8 addr[ETH_ALEN]; 1237 }; 1238 1239 /** 1240 * struct wiphy - wireless hardware description 1241 * @reg_notifier: the driver's regulatory notification callback 1242 * @regd: the driver's regulatory domain, if one was requested via 1243 * the regulatory_hint() API. This can be used by the driver 1244 * on the reg_notifier() if it chooses to ignore future 1245 * regulatory domain changes caused by other drivers. 1246 * @signal_type: signal type reported in &struct cfg80211_bss. 1247 * @cipher_suites: supported cipher suites 1248 * @n_cipher_suites: number of supported cipher suites 1249 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 1250 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 1251 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 1252 * -1 = fragmentation disabled, only odd values >= 256 used 1253 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 1254 * @_net: the network namespace this wiphy currently lives in 1255 * @perm_addr: permanent MAC address of this device 1256 * @addr_mask: If the device supports multiple MAC addresses by masking, 1257 * set this to a mask with variable bits set to 1, e.g. if the last 1258 * four bits are variable then set it to 00:...:00:0f. The actual 1259 * variable bits shall be determined by the interfaces added, with 1260 * interfaces not matching the mask being rejected to be brought up. 1261 * @n_addresses: number of addresses in @addresses. 1262 * @addresses: If the device has more than one address, set this pointer 1263 * to a list of addresses (6 bytes each). The first one will be used 1264 * by default for perm_addr. In this case, the mask should be set to 1265 * all-zeroes. In this case it is assumed that the device can handle 1266 * the same number of arbitrary MAC addresses. 1267 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 1268 * automatically on wiphy renames 1269 * @dev: (virtual) struct device for this wiphy 1270 * @wext: wireless extension handlers 1271 * @priv: driver private data (sized according to wiphy_new() parameter) 1272 * @interface_modes: bitmask of interfaces types valid for this wiphy, 1273 * must be set by driver 1274 * @flags: wiphy flags, see &enum wiphy_flags 1275 * @bss_priv_size: each BSS struct has private data allocated with it, 1276 * this variable determines its size 1277 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 1278 * any given scan 1279 * @max_scan_ie_len: maximum length of user-controlled IEs device can 1280 * add to probe request frames transmitted during a scan, must not 1281 * include fixed IEs like supported rates 1282 * @coverage_class: current coverage class 1283 * @fw_version: firmware version for ethtool reporting 1284 * @hw_version: hardware version for ethtool reporting 1285 * @max_num_pmkids: maximum number of PMKIDs supported by device 1286 * @privid: a pointer that drivers can use to identify if an arbitrary 1287 * wiphy is theirs, e.g. in global notifiers 1288 * @bands: information about bands/channels supported by this device 1289 */ 1290 struct wiphy { 1291 /* assign these fields before you register the wiphy */ 1292 1293 /* permanent MAC address(es) */ 1294 u8 perm_addr[ETH_ALEN]; 1295 u8 addr_mask[ETH_ALEN]; 1296 1297 u16 n_addresses; 1298 struct mac_address *addresses; 1299 1300 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 1301 u16 interface_modes; 1302 1303 u32 flags; 1304 1305 enum cfg80211_signal_type signal_type; 1306 1307 int bss_priv_size; 1308 u8 max_scan_ssids; 1309 u16 max_scan_ie_len; 1310 1311 int n_cipher_suites; 1312 const u32 *cipher_suites; 1313 1314 u8 retry_short; 1315 u8 retry_long; 1316 u32 frag_threshold; 1317 u32 rts_threshold; 1318 u8 coverage_class; 1319 1320 char fw_version[ETHTOOL_BUSINFO_LEN]; 1321 u32 hw_version; 1322 1323 u8 max_num_pmkids; 1324 1325 /* If multiple wiphys are registered and you're handed e.g. 1326 * a regular netdev with assigned ieee80211_ptr, you won't 1327 * know whether it points to a wiphy your driver has registered 1328 * or not. Assign this to something global to your driver to 1329 * help determine whether you own this wiphy or not. */ 1330 const void *privid; 1331 1332 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 1333 1334 /* Lets us get back the wiphy on the callback */ 1335 int (*reg_notifier)(struct wiphy *wiphy, 1336 struct regulatory_request *request); 1337 1338 /* fields below are read-only, assigned by cfg80211 */ 1339 1340 const struct ieee80211_regdomain *regd; 1341 1342 /* the item in /sys/class/ieee80211/ points to this, 1343 * you need use set_wiphy_dev() (see below) */ 1344 struct device dev; 1345 1346 /* dir in debugfs: ieee80211/<wiphyname> */ 1347 struct dentry *debugfsdir; 1348 1349 #ifdef CONFIG_NET_NS 1350 /* the network namespace this phy lives in currently */ 1351 struct net *_net; 1352 #endif 1353 1354 #ifdef CONFIG_CFG80211_WEXT 1355 const struct iw_handler_def *wext; 1356 #endif 1357 1358 char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); 1359 }; 1360 1361 static inline struct net *wiphy_net(struct wiphy *wiphy) 1362 { 1363 return read_pnet(&wiphy->_net); 1364 } 1365 1366 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 1367 { 1368 write_pnet(&wiphy->_net, net); 1369 } 1370 1371 /** 1372 * wiphy_priv - return priv from wiphy 1373 * 1374 * @wiphy: the wiphy whose priv pointer to return 1375 */ 1376 static inline void *wiphy_priv(struct wiphy *wiphy) 1377 { 1378 BUG_ON(!wiphy); 1379 return &wiphy->priv; 1380 } 1381 1382 /** 1383 * priv_to_wiphy - return the wiphy containing the priv 1384 * 1385 * @priv: a pointer previously returned by wiphy_priv 1386 */ 1387 static inline struct wiphy *priv_to_wiphy(void *priv) 1388 { 1389 BUG_ON(!priv); 1390 return container_of(priv, struct wiphy, priv); 1391 } 1392 1393 /** 1394 * set_wiphy_dev - set device pointer for wiphy 1395 * 1396 * @wiphy: The wiphy whose device to bind 1397 * @dev: The device to parent it to 1398 */ 1399 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 1400 { 1401 wiphy->dev.parent = dev; 1402 } 1403 1404 /** 1405 * wiphy_dev - get wiphy dev pointer 1406 * 1407 * @wiphy: The wiphy whose device struct to look up 1408 */ 1409 static inline struct device *wiphy_dev(struct wiphy *wiphy) 1410 { 1411 return wiphy->dev.parent; 1412 } 1413 1414 /** 1415 * wiphy_name - get wiphy name 1416 * 1417 * @wiphy: The wiphy whose name to return 1418 */ 1419 static inline const char *wiphy_name(const struct wiphy *wiphy) 1420 { 1421 return dev_name(&wiphy->dev); 1422 } 1423 1424 /** 1425 * wiphy_new - create a new wiphy for use with cfg80211 1426 * 1427 * @ops: The configuration operations for this device 1428 * @sizeof_priv: The size of the private area to allocate 1429 * 1430 * Create a new wiphy and associate the given operations with it. 1431 * @sizeof_priv bytes are allocated for private use. 1432 * 1433 * The returned pointer must be assigned to each netdev's 1434 * ieee80211_ptr for proper operation. 1435 */ 1436 struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv); 1437 1438 /** 1439 * wiphy_register - register a wiphy with cfg80211 1440 * 1441 * @wiphy: The wiphy to register. 1442 * 1443 * Returns a non-negative wiphy index or a negative error code. 1444 */ 1445 extern int wiphy_register(struct wiphy *wiphy); 1446 1447 /** 1448 * wiphy_unregister - deregister a wiphy from cfg80211 1449 * 1450 * @wiphy: The wiphy to unregister. 1451 * 1452 * After this call, no more requests can be made with this priv 1453 * pointer, but the call may sleep to wait for an outstanding 1454 * request that is being handled. 1455 */ 1456 extern void wiphy_unregister(struct wiphy *wiphy); 1457 1458 /** 1459 * wiphy_free - free wiphy 1460 * 1461 * @wiphy: The wiphy to free 1462 */ 1463 extern void wiphy_free(struct wiphy *wiphy); 1464 1465 /* internal structs */ 1466 struct cfg80211_conn; 1467 struct cfg80211_internal_bss; 1468 struct cfg80211_cached_keys; 1469 1470 #define MAX_AUTH_BSSES 4 1471 1472 /** 1473 * struct wireless_dev - wireless per-netdev state 1474 * 1475 * This structure must be allocated by the driver/stack 1476 * that uses the ieee80211_ptr field in struct net_device 1477 * (this is intentional so it can be allocated along with 1478 * the netdev.) 1479 * 1480 * @wiphy: pointer to hardware description 1481 * @iftype: interface type 1482 * @list: (private) Used to collect the interfaces 1483 * @netdev: (private) Used to reference back to the netdev 1484 * @current_bss: (private) Used by the internal configuration code 1485 * @channel: (private) Used by the internal configuration code to track 1486 * user-set AP, monitor and WDS channels for wireless extensions 1487 * @bssid: (private) Used by the internal configuration code 1488 * @ssid: (private) Used by the internal configuration code 1489 * @ssid_len: (private) Used by the internal configuration code 1490 * @wext: (private) Used by the internal wireless extensions compat code 1491 * @use_4addr: indicates 4addr mode is used on this interface, must be 1492 * set by driver (if supported) on add_interface BEFORE registering the 1493 * netdev and may otherwise be used by driver read-only, will be update 1494 * by cfg80211 on change_interface 1495 * @action_registrations: list of registrations for action frames 1496 * @action_registrations_lock: lock for the list 1497 * @mtx: mutex used to lock data in this struct 1498 * @cleanup_work: work struct used for cleanup that can't be done directly 1499 */ 1500 struct wireless_dev { 1501 struct wiphy *wiphy; 1502 enum nl80211_iftype iftype; 1503 1504 /* the remainder of this struct should be private to cfg80211 */ 1505 struct list_head list; 1506 struct net_device *netdev; 1507 1508 struct list_head action_registrations; 1509 spinlock_t action_registrations_lock; 1510 1511 struct mutex mtx; 1512 1513 struct work_struct cleanup_work; 1514 1515 bool use_4addr; 1516 1517 /* currently used for IBSS and SME - might be rearranged later */ 1518 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1519 u8 ssid_len; 1520 enum { 1521 CFG80211_SME_IDLE, 1522 CFG80211_SME_CONNECTING, 1523 CFG80211_SME_CONNECTED, 1524 } sme_state; 1525 struct cfg80211_conn *conn; 1526 struct cfg80211_cached_keys *connect_keys; 1527 1528 struct list_head event_list; 1529 spinlock_t event_lock; 1530 1531 struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES]; 1532 struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES]; 1533 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 1534 struct ieee80211_channel *channel; 1535 1536 bool ps; 1537 int ps_timeout; 1538 1539 #ifdef CONFIG_CFG80211_WEXT 1540 /* wext data */ 1541 struct { 1542 struct cfg80211_ibss_params ibss; 1543 struct cfg80211_connect_params connect; 1544 struct cfg80211_cached_keys *keys; 1545 u8 *ie; 1546 size_t ie_len; 1547 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 1548 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1549 s8 default_key, default_mgmt_key; 1550 bool prev_bssid_valid; 1551 } wext; 1552 #endif 1553 }; 1554 1555 /** 1556 * wdev_priv - return wiphy priv from wireless_dev 1557 * 1558 * @wdev: The wireless device whose wiphy's priv pointer to return 1559 */ 1560 static inline void *wdev_priv(struct wireless_dev *wdev) 1561 { 1562 BUG_ON(!wdev); 1563 return wiphy_priv(wdev->wiphy); 1564 } 1565 1566 /* 1567 * Utility functions 1568 */ 1569 1570 /** 1571 * ieee80211_channel_to_frequency - convert channel number to frequency 1572 * @chan: channel number 1573 */ 1574 extern int ieee80211_channel_to_frequency(int chan); 1575 1576 /** 1577 * ieee80211_frequency_to_channel - convert frequency to channel number 1578 * @freq: center frequency 1579 */ 1580 extern int ieee80211_frequency_to_channel(int freq); 1581 1582 /* 1583 * Name indirection necessary because the ieee80211 code also has 1584 * a function named "ieee80211_get_channel", so if you include 1585 * cfg80211's header file you get cfg80211's version, if you try 1586 * to include both header files you'll (rightfully!) get a symbol 1587 * clash. 1588 */ 1589 extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 1590 int freq); 1591 /** 1592 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 1593 * @wiphy: the struct wiphy to get the channel for 1594 * @freq: the center frequency of the channel 1595 */ 1596 static inline struct ieee80211_channel * 1597 ieee80211_get_channel(struct wiphy *wiphy, int freq) 1598 { 1599 return __ieee80211_get_channel(wiphy, freq); 1600 } 1601 1602 /** 1603 * ieee80211_get_response_rate - get basic rate for a given rate 1604 * 1605 * @sband: the band to look for rates in 1606 * @basic_rates: bitmap of basic rates 1607 * @bitrate: the bitrate for which to find the basic rate 1608 * 1609 * This function returns the basic rate corresponding to a given 1610 * bitrate, that is the next lower bitrate contained in the basic 1611 * rate map, which is, for this function, given as a bitmap of 1612 * indices of rates in the band's bitrate table. 1613 */ 1614 struct ieee80211_rate * 1615 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 1616 u32 basic_rates, int bitrate); 1617 1618 /* 1619 * Radiotap parsing functions -- for controlled injection support 1620 * 1621 * Implemented in net/wireless/radiotap.c 1622 * Documentation in Documentation/networking/radiotap-headers.txt 1623 */ 1624 1625 struct radiotap_align_size { 1626 uint8_t align:4, size:4; 1627 }; 1628 1629 struct ieee80211_radiotap_namespace { 1630 const struct radiotap_align_size *align_size; 1631 int n_bits; 1632 uint32_t oui; 1633 uint8_t subns; 1634 }; 1635 1636 struct ieee80211_radiotap_vendor_namespaces { 1637 const struct ieee80211_radiotap_namespace *ns; 1638 int n_ns; 1639 }; 1640 1641 /** 1642 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 1643 * @this_arg_index: index of current arg, valid after each successful call 1644 * to ieee80211_radiotap_iterator_next() 1645 * @this_arg: pointer to current radiotap arg; it is valid after each 1646 * call to ieee80211_radiotap_iterator_next() but also after 1647 * ieee80211_radiotap_iterator_init() where it will point to 1648 * the beginning of the actual data portion 1649 * @this_arg_size: length of the current arg, for convenience 1650 * @current_namespace: pointer to the current namespace definition 1651 * (or internally %NULL if the current namespace is unknown) 1652 * @is_radiotap_ns: indicates whether the current namespace is the default 1653 * radiotap namespace or not 1654 * 1655 * @_rtheader: pointer to the radiotap header we are walking through 1656 * @_max_length: length of radiotap header in cpu byte ordering 1657 * @_arg_index: next argument index 1658 * @_arg: next argument pointer 1659 * @_next_bitmap: internal pointer to next present u32 1660 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 1661 * @_vns: vendor namespace definitions 1662 * @_next_ns_data: beginning of the next namespace's data 1663 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 1664 * next bitmap word 1665 * 1666 * Describes the radiotap parser state. Fields prefixed with an underscore 1667 * must not be used by users of the parser, only by the parser internally. 1668 */ 1669 1670 struct ieee80211_radiotap_iterator { 1671 struct ieee80211_radiotap_header *_rtheader; 1672 const struct ieee80211_radiotap_vendor_namespaces *_vns; 1673 const struct ieee80211_radiotap_namespace *current_namespace; 1674 1675 unsigned char *_arg, *_next_ns_data; 1676 __le32 *_next_bitmap; 1677 1678 unsigned char *this_arg; 1679 int this_arg_index; 1680 int this_arg_size; 1681 1682 int is_radiotap_ns; 1683 1684 int _max_length; 1685 int _arg_index; 1686 uint32_t _bitmap_shifter; 1687 int _reset_on_ext; 1688 }; 1689 1690 extern int ieee80211_radiotap_iterator_init( 1691 struct ieee80211_radiotap_iterator *iterator, 1692 struct ieee80211_radiotap_header *radiotap_header, 1693 int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns); 1694 1695 extern int ieee80211_radiotap_iterator_next( 1696 struct ieee80211_radiotap_iterator *iterator); 1697 1698 1699 extern const unsigned char rfc1042_header[6]; 1700 extern const unsigned char bridge_tunnel_header[6]; 1701 1702 /** 1703 * ieee80211_get_hdrlen_from_skb - get header length from data 1704 * 1705 * Given an skb with a raw 802.11 header at the data pointer this function 1706 * returns the 802.11 header length in bytes (not including encryption 1707 * headers). If the data in the sk_buff is too short to contain a valid 802.11 1708 * header the function returns 0. 1709 * 1710 * @skb: the frame 1711 */ 1712 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 1713 1714 /** 1715 * ieee80211_hdrlen - get header length in bytes from frame control 1716 * @fc: frame control field in little-endian format 1717 */ 1718 unsigned int ieee80211_hdrlen(__le16 fc); 1719 1720 /** 1721 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 1722 * @skb: the 802.11 data frame 1723 * @addr: the device MAC address 1724 * @iftype: the virtual interface type 1725 */ 1726 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 1727 enum nl80211_iftype iftype); 1728 1729 /** 1730 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 1731 * @skb: the 802.3 frame 1732 * @addr: the device MAC address 1733 * @iftype: the virtual interface type 1734 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 1735 * @qos: build 802.11 QoS data frame 1736 */ 1737 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 1738 enum nl80211_iftype iftype, u8 *bssid, bool qos); 1739 1740 /** 1741 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 1742 * 1743 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 1744 * 802.3 frames. The @list will be empty if the decode fails. The 1745 * @skb is consumed after the function returns. 1746 * 1747 * @skb: The input IEEE 802.11n A-MSDU frame. 1748 * @list: The output list of 802.3 frames. It must be allocated and 1749 * initialized by by the caller. 1750 * @addr: The device MAC address. 1751 * @iftype: The device interface type. 1752 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 1753 */ 1754 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 1755 const u8 *addr, enum nl80211_iftype iftype, 1756 const unsigned int extra_headroom); 1757 1758 /** 1759 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 1760 * @skb: the data frame 1761 */ 1762 unsigned int cfg80211_classify8021d(struct sk_buff *skb); 1763 1764 /** 1765 * cfg80211_find_ie - find information element in data 1766 * 1767 * @eid: element ID 1768 * @ies: data consisting of IEs 1769 * @len: length of data 1770 * 1771 * This function will return %NULL if the element ID could 1772 * not be found or if the element is invalid (claims to be 1773 * longer than the given data), or a pointer to the first byte 1774 * of the requested element, that is the byte containing the 1775 * element ID. There are no checks on the element length 1776 * other than having to fit into the given data. 1777 */ 1778 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 1779 1780 /* 1781 * Regulatory helper functions for wiphys 1782 */ 1783 1784 /** 1785 * regulatory_hint - driver hint to the wireless core a regulatory domain 1786 * @wiphy: the wireless device giving the hint (used only for reporting 1787 * conflicts) 1788 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 1789 * should be in. If @rd is set this should be NULL. Note that if you 1790 * set this to NULL you should still set rd->alpha2 to some accepted 1791 * alpha2. 1792 * 1793 * Wireless drivers can use this function to hint to the wireless core 1794 * what it believes should be the current regulatory domain by 1795 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 1796 * domain should be in or by providing a completely build regulatory domain. 1797 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 1798 * for a regulatory domain structure for the respective country. 1799 * 1800 * The wiphy must have been registered to cfg80211 prior to this call. 1801 * For cfg80211 drivers this means you must first use wiphy_register(), 1802 * for mac80211 drivers you must first use ieee80211_register_hw(). 1803 * 1804 * Drivers should check the return value, its possible you can get 1805 * an -ENOMEM. 1806 */ 1807 extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 1808 1809 /** 1810 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 1811 * @wiphy: the wireless device we want to process the regulatory domain on 1812 * @regd: the custom regulatory domain to use for this wiphy 1813 * 1814 * Drivers can sometimes have custom regulatory domains which do not apply 1815 * to a specific country. Drivers can use this to apply such custom regulatory 1816 * domains. This routine must be called prior to wiphy registration. The 1817 * custom regulatory domain will be trusted completely and as such previous 1818 * default channel settings will be disregarded. If no rule is found for a 1819 * channel on the regulatory domain the channel will be disabled. 1820 */ 1821 extern void wiphy_apply_custom_regulatory( 1822 struct wiphy *wiphy, 1823 const struct ieee80211_regdomain *regd); 1824 1825 /** 1826 * freq_reg_info - get regulatory information for the given frequency 1827 * @wiphy: the wiphy for which we want to process this rule for 1828 * @center_freq: Frequency in KHz for which we want regulatory information for 1829 * @desired_bw_khz: the desired max bandwidth you want to use per 1830 * channel. Note that this is still 20 MHz if you want to use HT40 1831 * as HT40 makes use of two channels for its 40 MHz width bandwidth. 1832 * If set to 0 we'll assume you want the standard 20 MHz. 1833 * @reg_rule: the regulatory rule which we have for this frequency 1834 * 1835 * Use this function to get the regulatory rule for a specific frequency on 1836 * a given wireless device. If the device has a specific regulatory domain 1837 * it wants to follow we respect that unless a country IE has been received 1838 * and processed already. 1839 * 1840 * Returns 0 if it was able to find a valid regulatory rule which does 1841 * apply to the given center_freq otherwise it returns non-zero. It will 1842 * also return -ERANGE if we determine the given center_freq does not even have 1843 * a regulatory rule for a frequency range in the center_freq's band. See 1844 * freq_in_rule_band() for our current definition of a band -- this is purely 1845 * subjective and right now its 802.11 specific. 1846 */ 1847 extern int freq_reg_info(struct wiphy *wiphy, 1848 u32 center_freq, 1849 u32 desired_bw_khz, 1850 const struct ieee80211_reg_rule **reg_rule); 1851 1852 /* 1853 * Temporary wext handlers & helper functions 1854 * 1855 * In the future cfg80211 will simply assign the entire wext handler 1856 * structure to netdevs it manages, but we're not there yet. 1857 */ 1858 int cfg80211_wext_giwname(struct net_device *dev, 1859 struct iw_request_info *info, 1860 char *name, char *extra); 1861 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, 1862 u32 *mode, char *extra); 1863 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, 1864 u32 *mode, char *extra); 1865 int cfg80211_wext_siwscan(struct net_device *dev, 1866 struct iw_request_info *info, 1867 union iwreq_data *wrqu, char *extra); 1868 int cfg80211_wext_giwscan(struct net_device *dev, 1869 struct iw_request_info *info, 1870 struct iw_point *data, char *extra); 1871 int cfg80211_wext_siwmlme(struct net_device *dev, 1872 struct iw_request_info *info, 1873 struct iw_point *data, char *extra); 1874 int cfg80211_wext_giwrange(struct net_device *dev, 1875 struct iw_request_info *info, 1876 struct iw_point *data, char *extra); 1877 int cfg80211_wext_siwgenie(struct net_device *dev, 1878 struct iw_request_info *info, 1879 struct iw_point *data, char *extra); 1880 int cfg80211_wext_siwauth(struct net_device *dev, 1881 struct iw_request_info *info, 1882 struct iw_param *data, char *extra); 1883 int cfg80211_wext_giwauth(struct net_device *dev, 1884 struct iw_request_info *info, 1885 struct iw_param *data, char *extra); 1886 1887 int cfg80211_wext_siwfreq(struct net_device *dev, 1888 struct iw_request_info *info, 1889 struct iw_freq *freq, char *extra); 1890 int cfg80211_wext_giwfreq(struct net_device *dev, 1891 struct iw_request_info *info, 1892 struct iw_freq *freq, char *extra); 1893 int cfg80211_wext_siwessid(struct net_device *dev, 1894 struct iw_request_info *info, 1895 struct iw_point *data, char *ssid); 1896 int cfg80211_wext_giwessid(struct net_device *dev, 1897 struct iw_request_info *info, 1898 struct iw_point *data, char *ssid); 1899 int cfg80211_wext_siwrate(struct net_device *dev, 1900 struct iw_request_info *info, 1901 struct iw_param *rate, char *extra); 1902 int cfg80211_wext_giwrate(struct net_device *dev, 1903 struct iw_request_info *info, 1904 struct iw_param *rate, char *extra); 1905 1906 int cfg80211_wext_siwrts(struct net_device *dev, 1907 struct iw_request_info *info, 1908 struct iw_param *rts, char *extra); 1909 int cfg80211_wext_giwrts(struct net_device *dev, 1910 struct iw_request_info *info, 1911 struct iw_param *rts, char *extra); 1912 int cfg80211_wext_siwfrag(struct net_device *dev, 1913 struct iw_request_info *info, 1914 struct iw_param *frag, char *extra); 1915 int cfg80211_wext_giwfrag(struct net_device *dev, 1916 struct iw_request_info *info, 1917 struct iw_param *frag, char *extra); 1918 int cfg80211_wext_siwretry(struct net_device *dev, 1919 struct iw_request_info *info, 1920 struct iw_param *retry, char *extra); 1921 int cfg80211_wext_giwretry(struct net_device *dev, 1922 struct iw_request_info *info, 1923 struct iw_param *retry, char *extra); 1924 int cfg80211_wext_siwencodeext(struct net_device *dev, 1925 struct iw_request_info *info, 1926 struct iw_point *erq, char *extra); 1927 int cfg80211_wext_siwencode(struct net_device *dev, 1928 struct iw_request_info *info, 1929 struct iw_point *erq, char *keybuf); 1930 int cfg80211_wext_giwencode(struct net_device *dev, 1931 struct iw_request_info *info, 1932 struct iw_point *erq, char *keybuf); 1933 int cfg80211_wext_siwtxpower(struct net_device *dev, 1934 struct iw_request_info *info, 1935 union iwreq_data *data, char *keybuf); 1936 int cfg80211_wext_giwtxpower(struct net_device *dev, 1937 struct iw_request_info *info, 1938 union iwreq_data *data, char *keybuf); 1939 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev); 1940 1941 int cfg80211_wext_siwpower(struct net_device *dev, 1942 struct iw_request_info *info, 1943 struct iw_param *wrq, char *extra); 1944 int cfg80211_wext_giwpower(struct net_device *dev, 1945 struct iw_request_info *info, 1946 struct iw_param *wrq, char *extra); 1947 1948 int cfg80211_wext_siwap(struct net_device *dev, 1949 struct iw_request_info *info, 1950 struct sockaddr *ap_addr, char *extra); 1951 int cfg80211_wext_giwap(struct net_device *dev, 1952 struct iw_request_info *info, 1953 struct sockaddr *ap_addr, char *extra); 1954 1955 int cfg80211_wext_siwpmksa(struct net_device *dev, 1956 struct iw_request_info *info, 1957 struct iw_point *data, char *extra); 1958 1959 /* 1960 * callbacks for asynchronous cfg80211 methods, notification 1961 * functions and BSS handling helpers 1962 */ 1963 1964 /** 1965 * cfg80211_scan_done - notify that scan finished 1966 * 1967 * @request: the corresponding scan request 1968 * @aborted: set to true if the scan was aborted for any reason, 1969 * userspace will be notified of that 1970 */ 1971 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 1972 1973 /** 1974 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame 1975 * 1976 * @wiphy: the wiphy reporting the BSS 1977 * @channel: The channel the frame was received on 1978 * @mgmt: the management frame (probe response or beacon) 1979 * @len: length of the management frame 1980 * @signal: the signal strength, type depends on the wiphy's signal_type 1981 * @gfp: context flags 1982 * 1983 * This informs cfg80211 that BSS information was found and 1984 * the BSS should be updated/added. 1985 */ 1986 struct cfg80211_bss* 1987 cfg80211_inform_bss_frame(struct wiphy *wiphy, 1988 struct ieee80211_channel *channel, 1989 struct ieee80211_mgmt *mgmt, size_t len, 1990 s32 signal, gfp_t gfp); 1991 1992 /** 1993 * cfg80211_inform_bss - inform cfg80211 of a new BSS 1994 * 1995 * @wiphy: the wiphy reporting the BSS 1996 * @channel: The channel the frame was received on 1997 * @bssid: the BSSID of the BSS 1998 * @timestamp: the TSF timestamp sent by the peer 1999 * @capability: the capability field sent by the peer 2000 * @beacon_interval: the beacon interval announced by the peer 2001 * @ie: additional IEs sent by the peer 2002 * @ielen: length of the additional IEs 2003 * @signal: the signal strength, type depends on the wiphy's signal_type 2004 * @gfp: context flags 2005 * 2006 * This informs cfg80211 that BSS information was found and 2007 * the BSS should be updated/added. 2008 */ 2009 struct cfg80211_bss* 2010 cfg80211_inform_bss(struct wiphy *wiphy, 2011 struct ieee80211_channel *channel, 2012 const u8 *bssid, 2013 u64 timestamp, u16 capability, u16 beacon_interval, 2014 const u8 *ie, size_t ielen, 2015 s32 signal, gfp_t gfp); 2016 2017 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 2018 struct ieee80211_channel *channel, 2019 const u8 *bssid, 2020 const u8 *ssid, size_t ssid_len, 2021 u16 capa_mask, u16 capa_val); 2022 static inline struct cfg80211_bss * 2023 cfg80211_get_ibss(struct wiphy *wiphy, 2024 struct ieee80211_channel *channel, 2025 const u8 *ssid, size_t ssid_len) 2026 { 2027 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 2028 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 2029 } 2030 2031 struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy, 2032 struct ieee80211_channel *channel, 2033 const u8 *meshid, size_t meshidlen, 2034 const u8 *meshcfg); 2035 void cfg80211_put_bss(struct cfg80211_bss *bss); 2036 2037 /** 2038 * cfg80211_unlink_bss - unlink BSS from internal data structures 2039 * @wiphy: the wiphy 2040 * @bss: the bss to remove 2041 * 2042 * This function removes the given BSS from the internal data structures 2043 * thereby making it no longer show up in scan results etc. Use this 2044 * function when you detect a BSS is gone. Normally BSSes will also time 2045 * out, so it is not necessary to use this function at all. 2046 */ 2047 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 2048 2049 /** 2050 * cfg80211_send_rx_auth - notification of processed authentication 2051 * @dev: network device 2052 * @buf: authentication frame (header + body) 2053 * @len: length of the frame data 2054 * 2055 * This function is called whenever an authentication has been processed in 2056 * station mode. The driver is required to call either this function or 2057 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth() 2058 * call. This function may sleep. 2059 */ 2060 void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len); 2061 2062 /** 2063 * cfg80211_send_auth_timeout - notification of timed out authentication 2064 * @dev: network device 2065 * @addr: The MAC address of the device with which the authentication timed out 2066 * 2067 * This function may sleep. 2068 */ 2069 void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr); 2070 2071 /** 2072 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled 2073 * @dev: network device 2074 * @addr: The MAC address of the device with which the authentication timed out 2075 * 2076 * When a pending authentication had no action yet, the driver may decide 2077 * to not send a deauth frame, but in that case must calls this function 2078 * to tell cfg80211 about this decision. It is only valid to call this 2079 * function within the deauth() callback. 2080 */ 2081 void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr); 2082 2083 /** 2084 * cfg80211_send_rx_assoc - notification of processed association 2085 * @dev: network device 2086 * @buf: (re)association response frame (header + body) 2087 * @len: length of the frame data 2088 * 2089 * This function is called whenever a (re)association response has been 2090 * processed in station mode. The driver is required to call either this 2091 * function or cfg80211_send_assoc_timeout() to indicate the result of 2092 * cfg80211_ops::assoc() call. This function may sleep. 2093 */ 2094 void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len); 2095 2096 /** 2097 * cfg80211_send_assoc_timeout - notification of timed out association 2098 * @dev: network device 2099 * @addr: The MAC address of the device with which the association timed out 2100 * 2101 * This function may sleep. 2102 */ 2103 void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr); 2104 2105 /** 2106 * cfg80211_send_deauth - notification of processed deauthentication 2107 * @dev: network device 2108 * @buf: deauthentication frame (header + body) 2109 * @len: length of the frame data 2110 * 2111 * This function is called whenever deauthentication has been processed in 2112 * station mode. This includes both received deauthentication frames and 2113 * locally generated ones. This function may sleep. 2114 */ 2115 void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2116 2117 /** 2118 * __cfg80211_send_deauth - notification of processed deauthentication 2119 * @dev: network device 2120 * @buf: deauthentication frame (header + body) 2121 * @len: length of the frame data 2122 * 2123 * Like cfg80211_send_deauth(), but doesn't take the wdev lock. 2124 */ 2125 void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len); 2126 2127 /** 2128 * cfg80211_send_disassoc - notification of processed disassociation 2129 * @dev: network device 2130 * @buf: disassociation response frame (header + body) 2131 * @len: length of the frame data 2132 * 2133 * This function is called whenever disassociation has been processed in 2134 * station mode. This includes both received disassociation frames and locally 2135 * generated ones. This function may sleep. 2136 */ 2137 void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len); 2138 2139 /** 2140 * __cfg80211_send_disassoc - notification of processed disassociation 2141 * @dev: network device 2142 * @buf: disassociation response frame (header + body) 2143 * @len: length of the frame data 2144 * 2145 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock. 2146 */ 2147 void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, 2148 size_t len); 2149 2150 /** 2151 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 2152 * @dev: network device 2153 * @addr: The source MAC address of the frame 2154 * @key_type: The key type that the received frame used 2155 * @key_id: Key identifier (0..3) 2156 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 2157 * @gfp: allocation flags 2158 * 2159 * This function is called whenever the local MAC detects a MIC failure in a 2160 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 2161 * primitive. 2162 */ 2163 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 2164 enum nl80211_key_type key_type, int key_id, 2165 const u8 *tsc, gfp_t gfp); 2166 2167 /** 2168 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 2169 * 2170 * @dev: network device 2171 * @bssid: the BSSID of the IBSS joined 2172 * @gfp: allocation flags 2173 * 2174 * This function notifies cfg80211 that the device joined an IBSS or 2175 * switched to a different BSSID. Before this function can be called, 2176 * either a beacon has to have been received from the IBSS, or one of 2177 * the cfg80211_inform_bss{,_frame} functions must have been called 2178 * with the locally generated beacon -- this guarantees that there is 2179 * always a scan result for this IBSS. cfg80211 will handle the rest. 2180 */ 2181 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp); 2182 2183 /** 2184 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 2185 * @wiphy: the wiphy 2186 * @blocked: block status 2187 */ 2188 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 2189 2190 /** 2191 * wiphy_rfkill_start_polling - start polling rfkill 2192 * @wiphy: the wiphy 2193 */ 2194 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 2195 2196 /** 2197 * wiphy_rfkill_stop_polling - stop polling rfkill 2198 * @wiphy: the wiphy 2199 */ 2200 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 2201 2202 #ifdef CONFIG_NL80211_TESTMODE 2203 /** 2204 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 2205 * @wiphy: the wiphy 2206 * @approxlen: an upper bound of the length of the data that will 2207 * be put into the skb 2208 * 2209 * This function allocates and pre-fills an skb for a reply to 2210 * the testmode command. Since it is intended for a reply, calling 2211 * it outside of the @testmode_cmd operation is invalid. 2212 * 2213 * The returned skb (or %NULL if any errors happen) is pre-filled 2214 * with the wiphy index and set up in a way that any data that is 2215 * put into the skb (with skb_put(), nla_put() or similar) will end 2216 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that 2217 * needs to be done with the skb is adding data for the corresponding 2218 * userspace tool which can then read that data out of the testdata 2219 * attribute. You must not modify the skb in any other way. 2220 * 2221 * When done, call cfg80211_testmode_reply() with the skb and return 2222 * its error code as the result of the @testmode_cmd operation. 2223 */ 2224 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, 2225 int approxlen); 2226 2227 /** 2228 * cfg80211_testmode_reply - send the reply skb 2229 * @skb: The skb, must have been allocated with 2230 * cfg80211_testmode_alloc_reply_skb() 2231 * 2232 * Returns an error code or 0 on success, since calling this 2233 * function will usually be the last thing before returning 2234 * from the @testmode_cmd you should return the error code. 2235 * Note that this function consumes the skb regardless of the 2236 * return value. 2237 */ 2238 int cfg80211_testmode_reply(struct sk_buff *skb); 2239 2240 /** 2241 * cfg80211_testmode_alloc_event_skb - allocate testmode event 2242 * @wiphy: the wiphy 2243 * @approxlen: an upper bound of the length of the data that will 2244 * be put into the skb 2245 * @gfp: allocation flags 2246 * 2247 * This function allocates and pre-fills an skb for an event on the 2248 * testmode multicast group. 2249 * 2250 * The returned skb (or %NULL if any errors happen) is set up in the 2251 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared 2252 * for an event. As there, you should simply add data to it that will 2253 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must 2254 * not modify the skb in any other way. 2255 * 2256 * When done filling the skb, call cfg80211_testmode_event() with the 2257 * skb to send the event. 2258 */ 2259 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, 2260 int approxlen, gfp_t gfp); 2261 2262 /** 2263 * cfg80211_testmode_event - send the event 2264 * @skb: The skb, must have been allocated with 2265 * cfg80211_testmode_alloc_event_skb() 2266 * @gfp: allocation flags 2267 * 2268 * This function sends the given @skb, which must have been allocated 2269 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 2270 * consumes it. 2271 */ 2272 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp); 2273 2274 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 2275 #else 2276 #define CFG80211_TESTMODE_CMD(cmd) 2277 #endif 2278 2279 /** 2280 * cfg80211_connect_result - notify cfg80211 of connection result 2281 * 2282 * @dev: network device 2283 * @bssid: the BSSID of the AP 2284 * @req_ie: association request IEs (maybe be %NULL) 2285 * @req_ie_len: association request IEs length 2286 * @resp_ie: association response IEs (may be %NULL) 2287 * @resp_ie_len: assoc response IEs length 2288 * @status: status code, 0 for successful connection, use 2289 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 2290 * the real status code for failures. 2291 * @gfp: allocation flags 2292 * 2293 * It should be called by the underlying driver whenever connect() has 2294 * succeeded. 2295 */ 2296 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 2297 const u8 *req_ie, size_t req_ie_len, 2298 const u8 *resp_ie, size_t resp_ie_len, 2299 u16 status, gfp_t gfp); 2300 2301 /** 2302 * cfg80211_roamed - notify cfg80211 of roaming 2303 * 2304 * @dev: network device 2305 * @bssid: the BSSID of the new AP 2306 * @req_ie: association request IEs (maybe be %NULL) 2307 * @req_ie_len: association request IEs length 2308 * @resp_ie: association response IEs (may be %NULL) 2309 * @resp_ie_len: assoc response IEs length 2310 * @gfp: allocation flags 2311 * 2312 * It should be called by the underlying driver whenever it roamed 2313 * from one AP to another while connected. 2314 */ 2315 void cfg80211_roamed(struct net_device *dev, const u8 *bssid, 2316 const u8 *req_ie, size_t req_ie_len, 2317 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 2318 2319 /** 2320 * cfg80211_disconnected - notify cfg80211 that connection was dropped 2321 * 2322 * @dev: network device 2323 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 2324 * @ie_len: length of IEs 2325 * @reason: reason code for the disconnection, set it to 0 if unknown 2326 * @gfp: allocation flags 2327 * 2328 * After it calls this function, the driver should enter an idle state 2329 * and not try to connect to any AP any more. 2330 */ 2331 void cfg80211_disconnected(struct net_device *dev, u16 reason, 2332 u8 *ie, size_t ie_len, gfp_t gfp); 2333 2334 /** 2335 * cfg80211_ready_on_channel - notification of remain_on_channel start 2336 * @dev: network device 2337 * @cookie: the request cookie 2338 * @chan: The current channel (from remain_on_channel request) 2339 * @channel_type: Channel type 2340 * @duration: Duration in milliseconds that the driver intents to remain on the 2341 * channel 2342 * @gfp: allocation flags 2343 */ 2344 void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie, 2345 struct ieee80211_channel *chan, 2346 enum nl80211_channel_type channel_type, 2347 unsigned int duration, gfp_t gfp); 2348 2349 /** 2350 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 2351 * @dev: network device 2352 * @cookie: the request cookie 2353 * @chan: The current channel (from remain_on_channel request) 2354 * @channel_type: Channel type 2355 * @gfp: allocation flags 2356 */ 2357 void cfg80211_remain_on_channel_expired(struct net_device *dev, 2358 u64 cookie, 2359 struct ieee80211_channel *chan, 2360 enum nl80211_channel_type channel_type, 2361 gfp_t gfp); 2362 2363 2364 /** 2365 * cfg80211_new_sta - notify userspace about station 2366 * 2367 * @dev: the netdev 2368 * @mac_addr: the station's address 2369 * @sinfo: the station information 2370 * @gfp: allocation flags 2371 */ 2372 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 2373 struct station_info *sinfo, gfp_t gfp); 2374 2375 /** 2376 * cfg80211_rx_action - notification of received, unprocessed Action frame 2377 * @dev: network device 2378 * @freq: Frequency on which the frame was received in MHz 2379 * @buf: Action frame (header + body) 2380 * @len: length of the frame data 2381 * @gfp: context flags 2382 * Returns %true if a user space application is responsible for rejecting the 2383 * unrecognized Action frame; %false if no such application is registered 2384 * (i.e., the driver is responsible for rejecting the unrecognized Action 2385 * frame) 2386 * 2387 * This function is called whenever an Action frame is received for a station 2388 * mode interface, but is not processed in kernel. 2389 */ 2390 bool cfg80211_rx_action(struct net_device *dev, int freq, const u8 *buf, 2391 size_t len, gfp_t gfp); 2392 2393 /** 2394 * cfg80211_action_tx_status - notification of TX status for Action frame 2395 * @dev: network device 2396 * @cookie: Cookie returned by cfg80211_ops::action() 2397 * @buf: Action frame (header + body) 2398 * @len: length of the frame data 2399 * @ack: Whether frame was acknowledged 2400 * @gfp: context flags 2401 * 2402 * This function is called whenever an Action frame was requested to be 2403 * transmitted with cfg80211_ops::action() to report the TX status of the 2404 * transmission attempt. 2405 */ 2406 void cfg80211_action_tx_status(struct net_device *dev, u64 cookie, 2407 const u8 *buf, size_t len, bool ack, gfp_t gfp); 2408 2409 2410 /** 2411 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 2412 * @dev: network device 2413 * @rssi_event: the triggered RSSI event 2414 * @gfp: context flags 2415 * 2416 * This function is called when a configured connection quality monitoring 2417 * rssi threshold reached event occurs. 2418 */ 2419 void cfg80211_cqm_rssi_notify(struct net_device *dev, 2420 enum nl80211_cqm_rssi_threshold_event rssi_event, 2421 gfp_t gfp); 2422 2423 #ifdef __KERNEL__ 2424 2425 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 2426 2427 /* wiphy_printk helpers, similar to dev_printk */ 2428 2429 #define wiphy_printk(level, wiphy, format, args...) \ 2430 printk(level "%s: " format, wiphy_name(wiphy), ##args) 2431 #define wiphy_emerg(wiphy, format, args...) \ 2432 wiphy_printk(KERN_EMERG, wiphy, format, ##args) 2433 #define wiphy_alert(wiphy, format, args...) \ 2434 wiphy_printk(KERN_ALERT, wiphy, format, ##args) 2435 #define wiphy_crit(wiphy, format, args...) \ 2436 wiphy_printk(KERN_CRIT, wiphy, format, ##args) 2437 #define wiphy_err(wiphy, format, args...) \ 2438 wiphy_printk(KERN_ERR, wiphy, format, ##args) 2439 #define wiphy_warn(wiphy, format, args...) \ 2440 wiphy_printk(KERN_WARNING, wiphy, format, ##args) 2441 #define wiphy_notice(wiphy, format, args...) \ 2442 wiphy_printk(KERN_NOTICE, wiphy, format, ##args) 2443 #define wiphy_info(wiphy, format, args...) \ 2444 wiphy_printk(KERN_INFO, wiphy, format, ##args) 2445 2446 int wiphy_debug(const struct wiphy *wiphy, const char *format, ...) 2447 __attribute__ ((format (printf, 2, 3))); 2448 2449 #if defined(DEBUG) 2450 #define wiphy_dbg(wiphy, format, args...) \ 2451 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 2452 #elif defined(CONFIG_DYNAMIC_DEBUG) 2453 #define wiphy_dbg(wiphy, format, args...) \ 2454 dynamic_pr_debug("%s: " format, wiphy_name(wiphy), ##args) 2455 #else 2456 #define wiphy_dbg(wiphy, format, args...) \ 2457 ({ \ 2458 if (0) \ 2459 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 2460 0; \ 2461 }) 2462 #endif 2463 2464 #if defined(VERBOSE_DEBUG) 2465 #define wiphy_vdbg wiphy_dbg 2466 #else 2467 2468 #define wiphy_vdbg(wiphy, format, args...) \ 2469 ({ \ 2470 if (0) \ 2471 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 2472 0; \ 2473 }) 2474 #endif 2475 2476 /* 2477 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 2478 * of using a WARN/WARN_ON to get the message out, including the 2479 * file/line information and a backtrace. 2480 */ 2481 #define wiphy_WARN(wiphy, format, args...) \ 2482 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 2483 2484 #endif 2485 2486 #endif /* __NET_CFG80211_H */ 2487