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 * Copyright 2013-2014 Intel Mobile Communications GmbH 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <linux/netdevice.h> 15 #include <linux/debugfs.h> 16 #include <linux/list.h> 17 #include <linux/bug.h> 18 #include <linux/netlink.h> 19 #include <linux/skbuff.h> 20 #include <linux/nl80211.h> 21 #include <linux/if_ether.h> 22 #include <linux/ieee80211.h> 23 #include <linux/net.h> 24 #include <net/regulatory.h> 25 26 /** 27 * DOC: Introduction 28 * 29 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges 30 * userspace and drivers, and offers some utility functionality associated 31 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used 32 * by all modern wireless drivers in Linux, so that they offer a consistent 33 * API through nl80211. For backward compatibility, cfg80211 also offers 34 * wireless extensions to userspace, but hides them from drivers completely. 35 * 36 * Additionally, cfg80211 contains code to help enforce regulatory spectrum 37 * use restrictions. 38 */ 39 40 41 /** 42 * DOC: Device registration 43 * 44 * In order for a driver to use cfg80211, it must register the hardware device 45 * with cfg80211. This happens through a number of hardware capability structs 46 * described below. 47 * 48 * The fundamental structure for each device is the 'wiphy', of which each 49 * instance describes a physical wireless device connected to the system. Each 50 * such wiphy can have zero, one, or many virtual interfaces associated with 51 * it, which need to be identified as such by pointing the network interface's 52 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes 53 * the wireless part of the interface, normally this struct is embedded in the 54 * network interface's private data area. Drivers can optionally allow creating 55 * or destroying virtual interfaces on the fly, but without at least one or the 56 * ability to create some the wireless device isn't useful. 57 * 58 * Each wiphy structure contains device capability information, and also has 59 * a pointer to the various operations the driver offers. The definitions and 60 * structures here describe these capabilities in detail. 61 */ 62 63 struct wiphy; 64 65 /* 66 * wireless hardware capability structures 67 */ 68 69 /** 70 * enum ieee80211_band - supported frequency bands 71 * 72 * The bands are assigned this way because the supported 73 * bitrates differ in these bands. 74 * 75 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band 76 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) 77 * @IEEE80211_BAND_60GHZ: around 60 GHz band (58.32 - 64.80 GHz) 78 * @IEEE80211_NUM_BANDS: number of defined bands 79 */ 80 enum ieee80211_band { 81 IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ, 82 IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ, 83 IEEE80211_BAND_60GHZ = NL80211_BAND_60GHZ, 84 85 /* keep last */ 86 IEEE80211_NUM_BANDS 87 }; 88 89 /** 90 * enum ieee80211_channel_flags - channel flags 91 * 92 * Channel flags set by the regulatory control code. 93 * 94 * @IEEE80211_CHAN_DISABLED: This channel is disabled. 95 * @IEEE80211_CHAN_NO_IR: do not initiate radiation, this includes 96 * sending probe requests or beaconing. 97 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. 98 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel 99 * is not permitted. 100 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel 101 * is not permitted. 102 * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel. 103 * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band, 104 * this flag indicates that an 80 MHz channel cannot use this 105 * channel as the control or any of the secondary channels. 106 * This may be due to the driver or due to regulatory bandwidth 107 * restrictions. 108 * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band, 109 * this flag indicates that an 160 MHz channel cannot use this 110 * channel as the control or any of the secondary channels. 111 * This may be due to the driver or due to regulatory bandwidth 112 * restrictions. 113 * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY 114 * @IEEE80211_CHAN_GO_CONCURRENT: see %NL80211_FREQUENCY_ATTR_GO_CONCURRENT 115 * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted 116 * on this channel. 117 * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted 118 * on this channel. 119 * 120 */ 121 enum ieee80211_channel_flags { 122 IEEE80211_CHAN_DISABLED = 1<<0, 123 IEEE80211_CHAN_NO_IR = 1<<1, 124 /* hole at 1<<2 */ 125 IEEE80211_CHAN_RADAR = 1<<3, 126 IEEE80211_CHAN_NO_HT40PLUS = 1<<4, 127 IEEE80211_CHAN_NO_HT40MINUS = 1<<5, 128 IEEE80211_CHAN_NO_OFDM = 1<<6, 129 IEEE80211_CHAN_NO_80MHZ = 1<<7, 130 IEEE80211_CHAN_NO_160MHZ = 1<<8, 131 IEEE80211_CHAN_INDOOR_ONLY = 1<<9, 132 IEEE80211_CHAN_GO_CONCURRENT = 1<<10, 133 IEEE80211_CHAN_NO_20MHZ = 1<<11, 134 IEEE80211_CHAN_NO_10MHZ = 1<<12, 135 }; 136 137 #define IEEE80211_CHAN_NO_HT40 \ 138 (IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) 139 140 #define IEEE80211_DFS_MIN_CAC_TIME_MS 60000 141 #define IEEE80211_DFS_MIN_NOP_TIME_MS (30 * 60 * 1000) 142 143 /** 144 * struct ieee80211_channel - channel definition 145 * 146 * This structure describes a single channel for use 147 * with cfg80211. 148 * 149 * @center_freq: center frequency in MHz 150 * @hw_value: hardware-specific value for the channel 151 * @flags: channel flags from &enum ieee80211_channel_flags. 152 * @orig_flags: channel flags at registration time, used by regulatory 153 * code to support devices with additional restrictions 154 * @band: band this channel belongs to. 155 * @max_antenna_gain: maximum antenna gain in dBi 156 * @max_power: maximum transmission power (in dBm) 157 * @max_reg_power: maximum regulatory transmission power (in dBm) 158 * @beacon_found: helper to regulatory code to indicate when a beacon 159 * has been found on this channel. Use regulatory_hint_found_beacon() 160 * to enable this, this is useful only on 5 GHz band. 161 * @orig_mag: internal use 162 * @orig_mpwr: internal use 163 * @dfs_state: current state of this channel. Only relevant if radar is required 164 * on this channel. 165 * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered. 166 * @dfs_cac_ms: DFS CAC time in milliseconds, this is valid for DFS channels. 167 */ 168 struct ieee80211_channel { 169 enum ieee80211_band band; 170 u16 center_freq; 171 u16 hw_value; 172 u32 flags; 173 int max_antenna_gain; 174 int max_power; 175 int max_reg_power; 176 bool beacon_found; 177 u32 orig_flags; 178 int orig_mag, orig_mpwr; 179 enum nl80211_dfs_state dfs_state; 180 unsigned long dfs_state_entered; 181 unsigned int dfs_cac_ms; 182 }; 183 184 /** 185 * enum ieee80211_rate_flags - rate flags 186 * 187 * Hardware/specification flags for rates. These are structured 188 * in a way that allows using the same bitrate structure for 189 * different bands/PHY modes. 190 * 191 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short 192 * preamble on this bitrate; only relevant in 2.4GHz band and 193 * with CCK rates. 194 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate 195 * when used with 802.11a (on the 5 GHz band); filled by the 196 * core code when registering the wiphy. 197 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate 198 * when used with 802.11b (on the 2.4 GHz band); filled by the 199 * core code when registering the wiphy. 200 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate 201 * when used with 802.11g (on the 2.4 GHz band); filled by the 202 * core code when registering the wiphy. 203 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. 204 * @IEEE80211_RATE_SUPPORTS_5MHZ: Rate can be used in 5 MHz mode 205 * @IEEE80211_RATE_SUPPORTS_10MHZ: Rate can be used in 10 MHz mode 206 */ 207 enum ieee80211_rate_flags { 208 IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, 209 IEEE80211_RATE_MANDATORY_A = 1<<1, 210 IEEE80211_RATE_MANDATORY_B = 1<<2, 211 IEEE80211_RATE_MANDATORY_G = 1<<3, 212 IEEE80211_RATE_ERP_G = 1<<4, 213 IEEE80211_RATE_SUPPORTS_5MHZ = 1<<5, 214 IEEE80211_RATE_SUPPORTS_10MHZ = 1<<6, 215 }; 216 217 /** 218 * struct ieee80211_rate - bitrate definition 219 * 220 * This structure describes a bitrate that an 802.11 PHY can 221 * operate with. The two values @hw_value and @hw_value_short 222 * are only for driver use when pointers to this structure are 223 * passed around. 224 * 225 * @flags: rate-specific flags 226 * @bitrate: bitrate in units of 100 Kbps 227 * @hw_value: driver/hardware value for this rate 228 * @hw_value_short: driver/hardware value for this rate when 229 * short preamble is used 230 */ 231 struct ieee80211_rate { 232 u32 flags; 233 u16 bitrate; 234 u16 hw_value, hw_value_short; 235 }; 236 237 /** 238 * struct ieee80211_sta_ht_cap - STA's HT capabilities 239 * 240 * This structure describes most essential parameters needed 241 * to describe 802.11n HT capabilities for an STA. 242 * 243 * @ht_supported: is HT supported by the STA 244 * @cap: HT capabilities map as described in 802.11n spec 245 * @ampdu_factor: Maximum A-MPDU length factor 246 * @ampdu_density: Minimum A-MPDU spacing 247 * @mcs: Supported MCS rates 248 */ 249 struct ieee80211_sta_ht_cap { 250 u16 cap; /* use IEEE80211_HT_CAP_ */ 251 bool ht_supported; 252 u8 ampdu_factor; 253 u8 ampdu_density; 254 struct ieee80211_mcs_info mcs; 255 }; 256 257 /** 258 * struct ieee80211_sta_vht_cap - STA's VHT capabilities 259 * 260 * This structure describes most essential parameters needed 261 * to describe 802.11ac VHT capabilities for an STA. 262 * 263 * @vht_supported: is VHT supported by the STA 264 * @cap: VHT capabilities map as described in 802.11ac spec 265 * @vht_mcs: Supported VHT MCS rates 266 */ 267 struct ieee80211_sta_vht_cap { 268 bool vht_supported; 269 u32 cap; /* use IEEE80211_VHT_CAP_ */ 270 struct ieee80211_vht_mcs_info vht_mcs; 271 }; 272 273 /** 274 * struct ieee80211_supported_band - frequency band definition 275 * 276 * This structure describes a frequency band a wiphy 277 * is able to operate in. 278 * 279 * @channels: Array of channels the hardware can operate in 280 * in this band. 281 * @band: the band this structure represents 282 * @n_channels: Number of channels in @channels 283 * @bitrates: Array of bitrates the hardware can operate with 284 * in this band. Must be sorted to give a valid "supported 285 * rates" IE, i.e. CCK rates first, then OFDM. 286 * @n_bitrates: Number of bitrates in @bitrates 287 * @ht_cap: HT capabilities in this band 288 * @vht_cap: VHT capabilities in this band 289 */ 290 struct ieee80211_supported_band { 291 struct ieee80211_channel *channels; 292 struct ieee80211_rate *bitrates; 293 enum ieee80211_band band; 294 int n_channels; 295 int n_bitrates; 296 struct ieee80211_sta_ht_cap ht_cap; 297 struct ieee80211_sta_vht_cap vht_cap; 298 }; 299 300 /* 301 * Wireless hardware/device configuration structures and methods 302 */ 303 304 /** 305 * DOC: Actions and configuration 306 * 307 * Each wireless device and each virtual interface offer a set of configuration 308 * operations and other actions that are invoked by userspace. Each of these 309 * actions is described in the operations structure, and the parameters these 310 * operations use are described separately. 311 * 312 * Additionally, some operations are asynchronous and expect to get status 313 * information via some functions that drivers need to call. 314 * 315 * Scanning and BSS list handling with its associated functionality is described 316 * in a separate chapter. 317 */ 318 319 /** 320 * struct vif_params - describes virtual interface parameters 321 * @use_4addr: use 4-address frames 322 * @macaddr: address to use for this virtual interface. 323 * If this parameter is set to zero address the driver may 324 * determine the address as needed. 325 * This feature is only fully supported by drivers that enable the 326 * %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating 327 ** only p2p devices with specified MAC. 328 */ 329 struct vif_params { 330 int use_4addr; 331 u8 macaddr[ETH_ALEN]; 332 }; 333 334 /** 335 * struct key_params - key information 336 * 337 * Information about a key 338 * 339 * @key: key material 340 * @key_len: length of key material 341 * @cipher: cipher suite selector 342 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used 343 * with the get_key() callback, must be in little endian, 344 * length given by @seq_len. 345 * @seq_len: length of @seq. 346 */ 347 struct key_params { 348 const u8 *key; 349 const u8 *seq; 350 int key_len; 351 int seq_len; 352 u32 cipher; 353 }; 354 355 /** 356 * struct cfg80211_chan_def - channel definition 357 * @chan: the (control) channel 358 * @width: channel width 359 * @center_freq1: center frequency of first segment 360 * @center_freq2: center frequency of second segment 361 * (only with 80+80 MHz) 362 */ 363 struct cfg80211_chan_def { 364 struct ieee80211_channel *chan; 365 enum nl80211_chan_width width; 366 u32 center_freq1; 367 u32 center_freq2; 368 }; 369 370 /** 371 * cfg80211_get_chandef_type - return old channel type from chandef 372 * @chandef: the channel definition 373 * 374 * Return: The old channel type (NOHT, HT20, HT40+/-) from a given 375 * chandef, which must have a bandwidth allowing this conversion. 376 */ 377 static inline enum nl80211_channel_type 378 cfg80211_get_chandef_type(const struct cfg80211_chan_def *chandef) 379 { 380 switch (chandef->width) { 381 case NL80211_CHAN_WIDTH_20_NOHT: 382 return NL80211_CHAN_NO_HT; 383 case NL80211_CHAN_WIDTH_20: 384 return NL80211_CHAN_HT20; 385 case NL80211_CHAN_WIDTH_40: 386 if (chandef->center_freq1 > chandef->chan->center_freq) 387 return NL80211_CHAN_HT40PLUS; 388 return NL80211_CHAN_HT40MINUS; 389 default: 390 WARN_ON(1); 391 return NL80211_CHAN_NO_HT; 392 } 393 } 394 395 /** 396 * cfg80211_chandef_create - create channel definition using channel type 397 * @chandef: the channel definition struct to fill 398 * @channel: the control channel 399 * @chantype: the channel type 400 * 401 * Given a channel type, create a channel definition. 402 */ 403 void cfg80211_chandef_create(struct cfg80211_chan_def *chandef, 404 struct ieee80211_channel *channel, 405 enum nl80211_channel_type chantype); 406 407 /** 408 * cfg80211_chandef_identical - check if two channel definitions are identical 409 * @chandef1: first channel definition 410 * @chandef2: second channel definition 411 * 412 * Return: %true if the channels defined by the channel definitions are 413 * identical, %false otherwise. 414 */ 415 static inline bool 416 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1, 417 const struct cfg80211_chan_def *chandef2) 418 { 419 return (chandef1->chan == chandef2->chan && 420 chandef1->width == chandef2->width && 421 chandef1->center_freq1 == chandef2->center_freq1 && 422 chandef1->center_freq2 == chandef2->center_freq2); 423 } 424 425 /** 426 * cfg80211_chandef_compatible - check if two channel definitions are compatible 427 * @chandef1: first channel definition 428 * @chandef2: second channel definition 429 * 430 * Return: %NULL if the given channel definitions are incompatible, 431 * chandef1 or chandef2 otherwise. 432 */ 433 const struct cfg80211_chan_def * 434 cfg80211_chandef_compatible(const struct cfg80211_chan_def *chandef1, 435 const struct cfg80211_chan_def *chandef2); 436 437 /** 438 * cfg80211_chandef_valid - check if a channel definition is valid 439 * @chandef: the channel definition to check 440 * Return: %true if the channel definition is valid. %false otherwise. 441 */ 442 bool cfg80211_chandef_valid(const struct cfg80211_chan_def *chandef); 443 444 /** 445 * cfg80211_chandef_usable - check if secondary channels can be used 446 * @wiphy: the wiphy to validate against 447 * @chandef: the channel definition to check 448 * @prohibited_flags: the regulatory channel flags that must not be set 449 * Return: %true if secondary channels are usable. %false otherwise. 450 */ 451 bool cfg80211_chandef_usable(struct wiphy *wiphy, 452 const struct cfg80211_chan_def *chandef, 453 u32 prohibited_flags); 454 455 /** 456 * cfg80211_chandef_dfs_required - checks if radar detection is required 457 * @wiphy: the wiphy to validate against 458 * @chandef: the channel definition to check 459 * @iftype: the interface type as specified in &enum nl80211_iftype 460 * Returns: 461 * 1 if radar detection is required, 0 if it is not, < 0 on error 462 */ 463 int cfg80211_chandef_dfs_required(struct wiphy *wiphy, 464 const struct cfg80211_chan_def *chandef, 465 enum nl80211_iftype iftype); 466 467 /** 468 * ieee80211_chandef_rate_flags - returns rate flags for a channel 469 * 470 * In some channel types, not all rates may be used - for example CCK 471 * rates may not be used in 5/10 MHz channels. 472 * 473 * @chandef: channel definition for the channel 474 * 475 * Returns: rate flags which apply for this channel 476 */ 477 static inline enum ieee80211_rate_flags 478 ieee80211_chandef_rate_flags(struct cfg80211_chan_def *chandef) 479 { 480 switch (chandef->width) { 481 case NL80211_CHAN_WIDTH_5: 482 return IEEE80211_RATE_SUPPORTS_5MHZ; 483 case NL80211_CHAN_WIDTH_10: 484 return IEEE80211_RATE_SUPPORTS_10MHZ; 485 default: 486 break; 487 } 488 return 0; 489 } 490 491 /** 492 * ieee80211_chandef_max_power - maximum transmission power for the chandef 493 * 494 * In some regulations, the transmit power may depend on the configured channel 495 * bandwidth which may be defined as dBm/MHz. This function returns the actual 496 * max_power for non-standard (20 MHz) channels. 497 * 498 * @chandef: channel definition for the channel 499 * 500 * Returns: maximum allowed transmission power in dBm for the chandef 501 */ 502 static inline int 503 ieee80211_chandef_max_power(struct cfg80211_chan_def *chandef) 504 { 505 switch (chandef->width) { 506 case NL80211_CHAN_WIDTH_5: 507 return min(chandef->chan->max_reg_power - 6, 508 chandef->chan->max_power); 509 case NL80211_CHAN_WIDTH_10: 510 return min(chandef->chan->max_reg_power - 3, 511 chandef->chan->max_power); 512 default: 513 break; 514 } 515 return chandef->chan->max_power; 516 } 517 518 /** 519 * enum survey_info_flags - survey information flags 520 * 521 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in 522 * @SURVEY_INFO_IN_USE: channel is currently being used 523 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in 524 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in 525 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in 526 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in 527 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in 528 * 529 * Used by the driver to indicate which info in &struct survey_info 530 * it has filled in during the get_survey(). 531 */ 532 enum survey_info_flags { 533 SURVEY_INFO_NOISE_DBM = 1<<0, 534 SURVEY_INFO_IN_USE = 1<<1, 535 SURVEY_INFO_CHANNEL_TIME = 1<<2, 536 SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3, 537 SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4, 538 SURVEY_INFO_CHANNEL_TIME_RX = 1<<5, 539 SURVEY_INFO_CHANNEL_TIME_TX = 1<<6, 540 }; 541 542 /** 543 * struct survey_info - channel survey response 544 * 545 * @channel: the channel this survey record reports, mandatory 546 * @filled: bitflag of flags from &enum survey_info_flags 547 * @noise: channel noise in dBm. This and all following fields are 548 * optional 549 * @channel_time: amount of time in ms the radio spent on the channel 550 * @channel_time_busy: amount of time the primary channel was sensed busy 551 * @channel_time_ext_busy: amount of time the extension channel was sensed busy 552 * @channel_time_rx: amount of time the radio spent receiving data 553 * @channel_time_tx: amount of time the radio spent transmitting data 554 * 555 * Used by dump_survey() to report back per-channel survey information. 556 * 557 * This structure can later be expanded with things like 558 * channel duty cycle etc. 559 */ 560 struct survey_info { 561 struct ieee80211_channel *channel; 562 u64 channel_time; 563 u64 channel_time_busy; 564 u64 channel_time_ext_busy; 565 u64 channel_time_rx; 566 u64 channel_time_tx; 567 u32 filled; 568 s8 noise; 569 }; 570 571 /** 572 * struct cfg80211_crypto_settings - Crypto settings 573 * @wpa_versions: indicates which, if any, WPA versions are enabled 574 * (from enum nl80211_wpa_versions) 575 * @cipher_group: group key cipher suite (or 0 if unset) 576 * @n_ciphers_pairwise: number of AP supported unicast ciphers 577 * @ciphers_pairwise: unicast key cipher suites 578 * @n_akm_suites: number of AKM suites 579 * @akm_suites: AKM suites 580 * @control_port: Whether user space controls IEEE 802.1X port, i.e., 581 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 582 * required to assume that the port is unauthorized until authorized by 583 * user space. Otherwise, port is marked authorized by default. 584 * @control_port_ethertype: the control port protocol that should be 585 * allowed through even on unauthorized ports 586 * @control_port_no_encrypt: TRUE to prevent encryption of control port 587 * protocol frames. 588 */ 589 struct cfg80211_crypto_settings { 590 u32 wpa_versions; 591 u32 cipher_group; 592 int n_ciphers_pairwise; 593 u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES]; 594 int n_akm_suites; 595 u32 akm_suites[NL80211_MAX_NR_AKM_SUITES]; 596 bool control_port; 597 __be16 control_port_ethertype; 598 bool control_port_no_encrypt; 599 }; 600 601 /** 602 * struct cfg80211_beacon_data - beacon data 603 * @head: head portion of beacon (before TIM IE) 604 * or %NULL if not changed 605 * @tail: tail portion of beacon (after TIM IE) 606 * or %NULL if not changed 607 * @head_len: length of @head 608 * @tail_len: length of @tail 609 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL 610 * @beacon_ies_len: length of beacon_ies in octets 611 * @proberesp_ies: extra information element(s) to add into Probe Response 612 * frames or %NULL 613 * @proberesp_ies_len: length of proberesp_ies in octets 614 * @assocresp_ies: extra information element(s) to add into (Re)Association 615 * Response frames or %NULL 616 * @assocresp_ies_len: length of assocresp_ies in octets 617 * @probe_resp_len: length of probe response template (@probe_resp) 618 * @probe_resp: probe response template (AP mode only) 619 */ 620 struct cfg80211_beacon_data { 621 const u8 *head, *tail; 622 const u8 *beacon_ies; 623 const u8 *proberesp_ies; 624 const u8 *assocresp_ies; 625 const u8 *probe_resp; 626 627 size_t head_len, tail_len; 628 size_t beacon_ies_len; 629 size_t proberesp_ies_len; 630 size_t assocresp_ies_len; 631 size_t probe_resp_len; 632 }; 633 634 struct mac_address { 635 u8 addr[ETH_ALEN]; 636 }; 637 638 /** 639 * struct cfg80211_acl_data - Access control list data 640 * 641 * @acl_policy: ACL policy to be applied on the station's 642 * entry specified by mac_addr 643 * @n_acl_entries: Number of MAC address entries passed 644 * @mac_addrs: List of MAC addresses of stations to be used for ACL 645 */ 646 struct cfg80211_acl_data { 647 enum nl80211_acl_policy acl_policy; 648 int n_acl_entries; 649 650 /* Keep it last */ 651 struct mac_address mac_addrs[]; 652 }; 653 654 /** 655 * struct cfg80211_ap_settings - AP configuration 656 * 657 * Used to configure an AP interface. 658 * 659 * @chandef: defines the channel to use 660 * @beacon: beacon data 661 * @beacon_interval: beacon interval 662 * @dtim_period: DTIM period 663 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from 664 * user space) 665 * @ssid_len: length of @ssid 666 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames 667 * @crypto: crypto settings 668 * @privacy: the BSS uses privacy 669 * @auth_type: Authentication type (algorithm) 670 * @smps_mode: SMPS mode 671 * @inactivity_timeout: time in seconds to determine station's inactivity. 672 * @p2p_ctwindow: P2P CT Window 673 * @p2p_opp_ps: P2P opportunistic PS 674 * @acl: ACL configuration used by the drivers which has support for 675 * MAC address based access control 676 */ 677 struct cfg80211_ap_settings { 678 struct cfg80211_chan_def chandef; 679 680 struct cfg80211_beacon_data beacon; 681 682 int beacon_interval, dtim_period; 683 const u8 *ssid; 684 size_t ssid_len; 685 enum nl80211_hidden_ssid hidden_ssid; 686 struct cfg80211_crypto_settings crypto; 687 bool privacy; 688 enum nl80211_auth_type auth_type; 689 enum nl80211_smps_mode smps_mode; 690 int inactivity_timeout; 691 u8 p2p_ctwindow; 692 bool p2p_opp_ps; 693 const struct cfg80211_acl_data *acl; 694 }; 695 696 /** 697 * struct cfg80211_csa_settings - channel switch settings 698 * 699 * Used for channel switch 700 * 701 * @chandef: defines the channel to use after the switch 702 * @beacon_csa: beacon data while performing the switch 703 * @counter_offsets_beacon: offsets of the counters within the beacon (tail) 704 * @counter_offsets_presp: offsets of the counters within the probe response 705 * @n_counter_offsets_beacon: number of csa counters the beacon (tail) 706 * @n_counter_offsets_presp: number of csa counters in the probe response 707 * @beacon_after: beacon data to be used on the new channel 708 * @radar_required: whether radar detection is required on the new channel 709 * @block_tx: whether transmissions should be blocked while changing 710 * @count: number of beacons until switch 711 */ 712 struct cfg80211_csa_settings { 713 struct cfg80211_chan_def chandef; 714 struct cfg80211_beacon_data beacon_csa; 715 const u16 *counter_offsets_beacon; 716 const u16 *counter_offsets_presp; 717 unsigned int n_counter_offsets_beacon; 718 unsigned int n_counter_offsets_presp; 719 struct cfg80211_beacon_data beacon_after; 720 bool radar_required; 721 bool block_tx; 722 u8 count; 723 }; 724 725 /** 726 * enum station_parameters_apply_mask - station parameter values to apply 727 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp) 728 * @STATION_PARAM_APPLY_CAPABILITY: apply new capability 729 * @STATION_PARAM_APPLY_PLINK_STATE: apply new plink state 730 * 731 * Not all station parameters have in-band "no change" signalling, 732 * for those that don't these flags will are used. 733 */ 734 enum station_parameters_apply_mask { 735 STATION_PARAM_APPLY_UAPSD = BIT(0), 736 STATION_PARAM_APPLY_CAPABILITY = BIT(1), 737 STATION_PARAM_APPLY_PLINK_STATE = BIT(2), 738 }; 739 740 /** 741 * struct station_parameters - station parameters 742 * 743 * Used to change and create a new station. 744 * 745 * @vlan: vlan interface station should belong to 746 * @supported_rates: supported rates in IEEE 802.11 format 747 * (or NULL for no change) 748 * @supported_rates_len: number of supported rates 749 * @sta_flags_mask: station flags that changed 750 * (bitmask of BIT(NL80211_STA_FLAG_...)) 751 * @sta_flags_set: station flags values 752 * (bitmask of BIT(NL80211_STA_FLAG_...)) 753 * @listen_interval: listen interval or -1 for no change 754 * @aid: AID or zero for no change 755 * @plink_action: plink action to take 756 * @plink_state: set the peer link state for a station 757 * @ht_capa: HT capabilities of station 758 * @vht_capa: VHT capabilities of station 759 * @uapsd_queues: bitmap of queues configured for uapsd. same format 760 * as the AC bitmap in the QoS info field 761 * @max_sp: max Service Period. same format as the MAX_SP in the 762 * QoS info field (but already shifted down) 763 * @sta_modify_mask: bitmap indicating which parameters changed 764 * (for those that don't have a natural "no change" value), 765 * see &enum station_parameters_apply_mask 766 * @local_pm: local link-specific mesh power save mode (no change when set 767 * to unknown) 768 * @capability: station capability 769 * @ext_capab: extended capabilities of the station 770 * @ext_capab_len: number of extended capabilities 771 * @supported_channels: supported channels in IEEE 802.11 format 772 * @supported_channels_len: number of supported channels 773 * @supported_oper_classes: supported oper classes in IEEE 802.11 format 774 * @supported_oper_classes_len: number of supported operating classes 775 * @opmode_notif: operating mode field from Operating Mode Notification 776 * @opmode_notif_used: information if operating mode field is used 777 */ 778 struct station_parameters { 779 const u8 *supported_rates; 780 struct net_device *vlan; 781 u32 sta_flags_mask, sta_flags_set; 782 u32 sta_modify_mask; 783 int listen_interval; 784 u16 aid; 785 u8 supported_rates_len; 786 u8 plink_action; 787 u8 plink_state; 788 const struct ieee80211_ht_cap *ht_capa; 789 const struct ieee80211_vht_cap *vht_capa; 790 u8 uapsd_queues; 791 u8 max_sp; 792 enum nl80211_mesh_power_mode local_pm; 793 u16 capability; 794 const u8 *ext_capab; 795 u8 ext_capab_len; 796 const u8 *supported_channels; 797 u8 supported_channels_len; 798 const u8 *supported_oper_classes; 799 u8 supported_oper_classes_len; 800 u8 opmode_notif; 801 bool opmode_notif_used; 802 }; 803 804 /** 805 * struct station_del_parameters - station deletion parameters 806 * 807 * Used to delete a station entry (or all stations). 808 * 809 * @mac: MAC address of the station to remove or NULL to remove all stations 810 * @subtype: Management frame subtype to use for indicating removal 811 * (10 = Disassociation, 12 = Deauthentication) 812 * @reason_code: Reason code for the Disassociation/Deauthentication frame 813 */ 814 struct station_del_parameters { 815 const u8 *mac; 816 u8 subtype; 817 u16 reason_code; 818 }; 819 820 /** 821 * enum cfg80211_station_type - the type of station being modified 822 * @CFG80211_STA_AP_CLIENT: client of an AP interface 823 * @CFG80211_STA_AP_MLME_CLIENT: client of an AP interface that has 824 * the AP MLME in the device 825 * @CFG80211_STA_AP_STA: AP station on managed interface 826 * @CFG80211_STA_IBSS: IBSS station 827 * @CFG80211_STA_TDLS_PEER_SETUP: TDLS peer on managed interface (dummy entry 828 * while TDLS setup is in progress, it moves out of this state when 829 * being marked authorized; use this only if TDLS with external setup is 830 * supported/used) 831 * @CFG80211_STA_TDLS_PEER_ACTIVE: TDLS peer on managed interface (active 832 * entry that is operating, has been marked authorized by userspace) 833 * @CFG80211_STA_MESH_PEER_KERNEL: peer on mesh interface (kernel managed) 834 * @CFG80211_STA_MESH_PEER_USER: peer on mesh interface (user managed) 835 */ 836 enum cfg80211_station_type { 837 CFG80211_STA_AP_CLIENT, 838 CFG80211_STA_AP_MLME_CLIENT, 839 CFG80211_STA_AP_STA, 840 CFG80211_STA_IBSS, 841 CFG80211_STA_TDLS_PEER_SETUP, 842 CFG80211_STA_TDLS_PEER_ACTIVE, 843 CFG80211_STA_MESH_PEER_KERNEL, 844 CFG80211_STA_MESH_PEER_USER, 845 }; 846 847 /** 848 * cfg80211_check_station_change - validate parameter changes 849 * @wiphy: the wiphy this operates on 850 * @params: the new parameters for a station 851 * @statype: the type of station being modified 852 * 853 * Utility function for the @change_station driver method. Call this function 854 * with the appropriate station type looking up the station (and checking that 855 * it exists). It will verify whether the station change is acceptable, and if 856 * not will return an error code. Note that it may modify the parameters for 857 * backward compatibility reasons, so don't use them before calling this. 858 */ 859 int cfg80211_check_station_change(struct wiphy *wiphy, 860 struct station_parameters *params, 861 enum cfg80211_station_type statype); 862 863 /** 864 * enum station_info_flags - station information flags 865 * 866 * Used by the driver to indicate which info in &struct station_info 867 * it has filled in during get_station() or dump_station(). 868 * 869 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled 870 * @STATION_INFO_RX_BYTES: @rx_bytes filled 871 * @STATION_INFO_TX_BYTES: @tx_bytes filled 872 * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value 873 * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value 874 * @STATION_INFO_LLID: @llid filled 875 * @STATION_INFO_PLID: @plid filled 876 * @STATION_INFO_PLINK_STATE: @plink_state filled 877 * @STATION_INFO_SIGNAL: @signal filled 878 * @STATION_INFO_TX_BITRATE: @txrate fields are filled 879 * (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs) 880 * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value 881 * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value 882 * @STATION_INFO_TX_RETRIES: @tx_retries filled 883 * @STATION_INFO_TX_FAILED: @tx_failed filled 884 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled 885 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled 886 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled 887 * @STATION_INFO_BSS_PARAM: @bss_param filled 888 * @STATION_INFO_CONNECTED_TIME: @connected_time filled 889 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled 890 * @STATION_INFO_STA_FLAGS: @sta_flags filled 891 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled 892 * @STATION_INFO_T_OFFSET: @t_offset filled 893 * @STATION_INFO_LOCAL_PM: @local_pm filled 894 * @STATION_INFO_PEER_PM: @peer_pm filled 895 * @STATION_INFO_NONPEER_PM: @nonpeer_pm filled 896 * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled 897 * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled 898 * @STATION_INFO_EXPECTED_THROUGHPUT: @expected_throughput filled 899 */ 900 enum station_info_flags { 901 STATION_INFO_INACTIVE_TIME = BIT(0), 902 STATION_INFO_RX_BYTES = BIT(1), 903 STATION_INFO_TX_BYTES = BIT(2), 904 STATION_INFO_LLID = BIT(3), 905 STATION_INFO_PLID = BIT(4), 906 STATION_INFO_PLINK_STATE = BIT(5), 907 STATION_INFO_SIGNAL = BIT(6), 908 STATION_INFO_TX_BITRATE = BIT(7), 909 STATION_INFO_RX_PACKETS = BIT(8), 910 STATION_INFO_TX_PACKETS = BIT(9), 911 STATION_INFO_TX_RETRIES = BIT(10), 912 STATION_INFO_TX_FAILED = BIT(11), 913 STATION_INFO_RX_DROP_MISC = BIT(12), 914 STATION_INFO_SIGNAL_AVG = BIT(13), 915 STATION_INFO_RX_BITRATE = BIT(14), 916 STATION_INFO_BSS_PARAM = BIT(15), 917 STATION_INFO_CONNECTED_TIME = BIT(16), 918 STATION_INFO_ASSOC_REQ_IES = BIT(17), 919 STATION_INFO_STA_FLAGS = BIT(18), 920 STATION_INFO_BEACON_LOSS_COUNT = BIT(19), 921 STATION_INFO_T_OFFSET = BIT(20), 922 STATION_INFO_LOCAL_PM = BIT(21), 923 STATION_INFO_PEER_PM = BIT(22), 924 STATION_INFO_NONPEER_PM = BIT(23), 925 STATION_INFO_RX_BYTES64 = BIT(24), 926 STATION_INFO_TX_BYTES64 = BIT(25), 927 STATION_INFO_CHAIN_SIGNAL = BIT(26), 928 STATION_INFO_CHAIN_SIGNAL_AVG = BIT(27), 929 STATION_INFO_EXPECTED_THROUGHPUT = BIT(28), 930 }; 931 932 /** 933 * enum station_info_rate_flags - bitrate info flags 934 * 935 * Used by the driver to indicate the specific rate transmission 936 * type for 802.11n transmissions. 937 * 938 * @RATE_INFO_FLAGS_MCS: mcs field filled with HT MCS 939 * @RATE_INFO_FLAGS_VHT_MCS: mcs field filled with VHT MCS 940 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 MHz width transmission 941 * @RATE_INFO_FLAGS_80_MHZ_WIDTH: 80 MHz width transmission 942 * @RATE_INFO_FLAGS_80P80_MHZ_WIDTH: 80+80 MHz width transmission 943 * @RATE_INFO_FLAGS_160_MHZ_WIDTH: 160 MHz width transmission 944 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval 945 * @RATE_INFO_FLAGS_60G: 60GHz MCS 946 */ 947 enum rate_info_flags { 948 RATE_INFO_FLAGS_MCS = BIT(0), 949 RATE_INFO_FLAGS_VHT_MCS = BIT(1), 950 RATE_INFO_FLAGS_40_MHZ_WIDTH = BIT(2), 951 RATE_INFO_FLAGS_80_MHZ_WIDTH = BIT(3), 952 RATE_INFO_FLAGS_80P80_MHZ_WIDTH = BIT(4), 953 RATE_INFO_FLAGS_160_MHZ_WIDTH = BIT(5), 954 RATE_INFO_FLAGS_SHORT_GI = BIT(6), 955 RATE_INFO_FLAGS_60G = BIT(7), 956 }; 957 958 /** 959 * struct rate_info - bitrate information 960 * 961 * Information about a receiving or transmitting bitrate 962 * 963 * @flags: bitflag of flags from &enum rate_info_flags 964 * @mcs: mcs index if struct describes a 802.11n bitrate 965 * @legacy: bitrate in 100kbit/s for 802.11abg 966 * @nss: number of streams (VHT only) 967 */ 968 struct rate_info { 969 u8 flags; 970 u8 mcs; 971 u16 legacy; 972 u8 nss; 973 }; 974 975 /** 976 * enum station_info_rate_flags - bitrate info flags 977 * 978 * Used by the driver to indicate the specific rate transmission 979 * type for 802.11n transmissions. 980 * 981 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled 982 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled 983 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled 984 */ 985 enum bss_param_flags { 986 BSS_PARAM_FLAGS_CTS_PROT = 1<<0, 987 BSS_PARAM_FLAGS_SHORT_PREAMBLE = 1<<1, 988 BSS_PARAM_FLAGS_SHORT_SLOT_TIME = 1<<2, 989 }; 990 991 /** 992 * struct sta_bss_parameters - BSS parameters for the attached station 993 * 994 * Information about the currently associated BSS 995 * 996 * @flags: bitflag of flags from &enum bss_param_flags 997 * @dtim_period: DTIM period for the BSS 998 * @beacon_interval: beacon interval 999 */ 1000 struct sta_bss_parameters { 1001 u8 flags; 1002 u8 dtim_period; 1003 u16 beacon_interval; 1004 }; 1005 1006 #define IEEE80211_MAX_CHAINS 4 1007 1008 /** 1009 * struct station_info - station information 1010 * 1011 * Station information filled by driver for get_station() and dump_station. 1012 * 1013 * @filled: bitflag of flags from &enum station_info_flags 1014 * @connected_time: time(in secs) since a station is last connected 1015 * @inactive_time: time since last station activity (tx/rx) in milliseconds 1016 * @rx_bytes: bytes received from this station 1017 * @tx_bytes: bytes transmitted to this station 1018 * @llid: mesh local link id 1019 * @plid: mesh peer link id 1020 * @plink_state: mesh peer link state 1021 * @signal: The signal strength, type depends on the wiphy's signal_type. 1022 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 1023 * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. 1024 * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. 1025 * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg 1026 * @chain_signal: per-chain signal strength of last received packet in dBm 1027 * @chain_signal_avg: per-chain signal strength average in dBm 1028 * @txrate: current unicast bitrate from this station 1029 * @rxrate: current unicast bitrate to this station 1030 * @rx_packets: packets received from this station 1031 * @tx_packets: packets transmitted to this station 1032 * @tx_retries: cumulative retry counts 1033 * @tx_failed: number of failed transmissions (retries exceeded, no ACK) 1034 * @rx_dropped_misc: Dropped for un-specified reason. 1035 * @bss_param: current BSS parameters 1036 * @generation: generation number for nl80211 dumps. 1037 * This number should increase every time the list of stations 1038 * changes, i.e. when a station is added or removed, so that 1039 * userspace can tell whether it got a consistent snapshot. 1040 * @assoc_req_ies: IEs from (Re)Association Request. 1041 * This is used only when in AP mode with drivers that do not use 1042 * user space MLME/SME implementation. The information is provided for 1043 * the cfg80211_new_sta() calls to notify user space of the IEs. 1044 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets. 1045 * @sta_flags: station flags mask & values 1046 * @beacon_loss_count: Number of times beacon loss event has triggered. 1047 * @t_offset: Time offset of the station relative to this host. 1048 * @local_pm: local mesh STA power save mode 1049 * @peer_pm: peer mesh STA power save mode 1050 * @nonpeer_pm: non-peer mesh STA power save mode 1051 * @expected_throughput: expected throughput in kbps (including 802.11 headers) 1052 * towards this station. 1053 */ 1054 struct station_info { 1055 u32 filled; 1056 u32 connected_time; 1057 u32 inactive_time; 1058 u64 rx_bytes; 1059 u64 tx_bytes; 1060 u16 llid; 1061 u16 plid; 1062 u8 plink_state; 1063 s8 signal; 1064 s8 signal_avg; 1065 1066 u8 chains; 1067 s8 chain_signal[IEEE80211_MAX_CHAINS]; 1068 s8 chain_signal_avg[IEEE80211_MAX_CHAINS]; 1069 1070 struct rate_info txrate; 1071 struct rate_info rxrate; 1072 u32 rx_packets; 1073 u32 tx_packets; 1074 u32 tx_retries; 1075 u32 tx_failed; 1076 u32 rx_dropped_misc; 1077 struct sta_bss_parameters bss_param; 1078 struct nl80211_sta_flag_update sta_flags; 1079 1080 int generation; 1081 1082 const u8 *assoc_req_ies; 1083 size_t assoc_req_ies_len; 1084 1085 u32 beacon_loss_count; 1086 s64 t_offset; 1087 enum nl80211_mesh_power_mode local_pm; 1088 enum nl80211_mesh_power_mode peer_pm; 1089 enum nl80211_mesh_power_mode nonpeer_pm; 1090 1091 u32 expected_throughput; 1092 1093 /* 1094 * Note: Add a new enum station_info_flags value for each new field and 1095 * use it to check which fields are initialized. 1096 */ 1097 }; 1098 1099 /** 1100 * cfg80211_get_station - retrieve information about a given station 1101 * @dev: the device where the station is supposed to be connected to 1102 * @mac_addr: the mac address of the station of interest 1103 * @sinfo: pointer to the structure to fill with the information 1104 * 1105 * Returns 0 on success and sinfo is filled with the available information 1106 * otherwise returns a negative error code and the content of sinfo has to be 1107 * considered undefined. 1108 */ 1109 int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr, 1110 struct station_info *sinfo); 1111 1112 /** 1113 * enum monitor_flags - monitor flags 1114 * 1115 * Monitor interface configuration flags. Note that these must be the bits 1116 * according to the nl80211 flags. 1117 * 1118 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS 1119 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP 1120 * @MONITOR_FLAG_CONTROL: pass control frames 1121 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering 1122 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing 1123 * @MONITOR_FLAG_ACTIVE: active monitor, ACKs frames on its MAC address 1124 */ 1125 enum monitor_flags { 1126 MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, 1127 MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, 1128 MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, 1129 MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, 1130 MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, 1131 MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE, 1132 }; 1133 1134 /** 1135 * enum mpath_info_flags - mesh path information flags 1136 * 1137 * Used by the driver to indicate which info in &struct mpath_info it has filled 1138 * in during get_station() or dump_station(). 1139 * 1140 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled 1141 * @MPATH_INFO_SN: @sn filled 1142 * @MPATH_INFO_METRIC: @metric filled 1143 * @MPATH_INFO_EXPTIME: @exptime filled 1144 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled 1145 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled 1146 * @MPATH_INFO_FLAGS: @flags filled 1147 */ 1148 enum mpath_info_flags { 1149 MPATH_INFO_FRAME_QLEN = BIT(0), 1150 MPATH_INFO_SN = BIT(1), 1151 MPATH_INFO_METRIC = BIT(2), 1152 MPATH_INFO_EXPTIME = BIT(3), 1153 MPATH_INFO_DISCOVERY_TIMEOUT = BIT(4), 1154 MPATH_INFO_DISCOVERY_RETRIES = BIT(5), 1155 MPATH_INFO_FLAGS = BIT(6), 1156 }; 1157 1158 /** 1159 * struct mpath_info - mesh path information 1160 * 1161 * Mesh path information filled by driver for get_mpath() and dump_mpath(). 1162 * 1163 * @filled: bitfield of flags from &enum mpath_info_flags 1164 * @frame_qlen: number of queued frames for this destination 1165 * @sn: target sequence number 1166 * @metric: metric (cost) of this mesh path 1167 * @exptime: expiration time for the mesh path from now, in msecs 1168 * @flags: mesh path flags 1169 * @discovery_timeout: total mesh path discovery timeout, in msecs 1170 * @discovery_retries: mesh path discovery retries 1171 * @generation: generation number for nl80211 dumps. 1172 * This number should increase every time the list of mesh paths 1173 * changes, i.e. when a station is added or removed, so that 1174 * userspace can tell whether it got a consistent snapshot. 1175 */ 1176 struct mpath_info { 1177 u32 filled; 1178 u32 frame_qlen; 1179 u32 sn; 1180 u32 metric; 1181 u32 exptime; 1182 u32 discovery_timeout; 1183 u8 discovery_retries; 1184 u8 flags; 1185 1186 int generation; 1187 }; 1188 1189 /** 1190 * struct bss_parameters - BSS parameters 1191 * 1192 * Used to change BSS parameters (mainly for AP mode). 1193 * 1194 * @use_cts_prot: Whether to use CTS protection 1195 * (0 = no, 1 = yes, -1 = do not change) 1196 * @use_short_preamble: Whether the use of short preambles is allowed 1197 * (0 = no, 1 = yes, -1 = do not change) 1198 * @use_short_slot_time: Whether the use of short slot time is allowed 1199 * (0 = no, 1 = yes, -1 = do not change) 1200 * @basic_rates: basic rates in IEEE 802.11 format 1201 * (or NULL for no change) 1202 * @basic_rates_len: number of basic rates 1203 * @ap_isolate: do not forward packets between connected stations 1204 * @ht_opmode: HT Operation mode 1205 * (u16 = opmode, -1 = do not change) 1206 * @p2p_ctwindow: P2P CT Window (-1 = no change) 1207 * @p2p_opp_ps: P2P opportunistic PS (-1 = no change) 1208 */ 1209 struct bss_parameters { 1210 int use_cts_prot; 1211 int use_short_preamble; 1212 int use_short_slot_time; 1213 const u8 *basic_rates; 1214 u8 basic_rates_len; 1215 int ap_isolate; 1216 int ht_opmode; 1217 s8 p2p_ctwindow, p2p_opp_ps; 1218 }; 1219 1220 /** 1221 * struct mesh_config - 802.11s mesh configuration 1222 * 1223 * These parameters can be changed while the mesh is active. 1224 * 1225 * @dot11MeshRetryTimeout: the initial retry timeout in millisecond units used 1226 * by the Mesh Peering Open message 1227 * @dot11MeshConfirmTimeout: the initial retry timeout in millisecond units 1228 * used by the Mesh Peering Open message 1229 * @dot11MeshHoldingTimeout: the confirm timeout in millisecond units used by 1230 * the mesh peering management to close a mesh peering 1231 * @dot11MeshMaxPeerLinks: the maximum number of peer links allowed on this 1232 * mesh interface 1233 * @dot11MeshMaxRetries: the maximum number of peer link open retries that can 1234 * be sent to establish a new peer link instance in a mesh 1235 * @dot11MeshTTL: the value of TTL field set at a source mesh STA 1236 * @element_ttl: the value of TTL field set at a mesh STA for path selection 1237 * elements 1238 * @auto_open_plinks: whether we should automatically open peer links when we 1239 * detect compatible mesh peers 1240 * @dot11MeshNbrOffsetMaxNeighbor: the maximum number of neighbors to 1241 * synchronize to for 11s default synchronization method 1242 * @dot11MeshHWMPmaxPREQretries: the number of action frames containing a PREQ 1243 * that an originator mesh STA can send to a particular path target 1244 * @path_refresh_time: how frequently to refresh mesh paths in milliseconds 1245 * @min_discovery_timeout: the minimum length of time to wait until giving up on 1246 * a path discovery in milliseconds 1247 * @dot11MeshHWMPactivePathTimeout: the time (in TUs) for which mesh STAs 1248 * receiving a PREQ shall consider the forwarding information from the 1249 * root to be valid. (TU = time unit) 1250 * @dot11MeshHWMPpreqMinInterval: the minimum interval of time (in TUs) during 1251 * which a mesh STA can send only one action frame containing a PREQ 1252 * element 1253 * @dot11MeshHWMPperrMinInterval: the minimum interval of time (in TUs) during 1254 * which a mesh STA can send only one Action frame containing a PERR 1255 * element 1256 * @dot11MeshHWMPnetDiameterTraversalTime: the interval of time (in TUs) that 1257 * it takes for an HWMP information element to propagate across the mesh 1258 * @dot11MeshHWMPRootMode: the configuration of a mesh STA as root mesh STA 1259 * @dot11MeshHWMPRannInterval: the interval of time (in TUs) between root 1260 * announcements are transmitted 1261 * @dot11MeshGateAnnouncementProtocol: whether to advertise that this mesh 1262 * station has access to a broader network beyond the MBSS. (This is 1263 * missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol set to true 1264 * only means that the station will announce others it's a mesh gate, but 1265 * not necessarily using the gate announcement protocol. Still keeping the 1266 * same nomenclature to be in sync with the spec) 1267 * @dot11MeshForwarding: whether the Mesh STA is forwarding or non-forwarding 1268 * entity (default is TRUE - forwarding entity) 1269 * @rssi_threshold: the threshold for average signal strength of candidate 1270 * station to establish a peer link 1271 * @ht_opmode: mesh HT protection mode 1272 * 1273 * @dot11MeshHWMPactivePathToRootTimeout: The time (in TUs) for which mesh STAs 1274 * receiving a proactive PREQ shall consider the forwarding information to 1275 * the root mesh STA to be valid. 1276 * 1277 * @dot11MeshHWMProotInterval: The interval of time (in TUs) between proactive 1278 * PREQs are transmitted. 1279 * @dot11MeshHWMPconfirmationInterval: The minimum interval of time (in TUs) 1280 * during which a mesh STA can send only one Action frame containing 1281 * a PREQ element for root path confirmation. 1282 * @power_mode: The default mesh power save mode which will be the initial 1283 * setting for new peer links. 1284 * @dot11MeshAwakeWindowDuration: The duration in TUs the STA will remain awake 1285 * after transmitting its beacon. 1286 * @plink_timeout: If no tx activity is seen from a STA we've established 1287 * peering with for longer than this time (in seconds), then remove it 1288 * from the STA's list of peers. Default is 30 minutes. 1289 */ 1290 struct mesh_config { 1291 u16 dot11MeshRetryTimeout; 1292 u16 dot11MeshConfirmTimeout; 1293 u16 dot11MeshHoldingTimeout; 1294 u16 dot11MeshMaxPeerLinks; 1295 u8 dot11MeshMaxRetries; 1296 u8 dot11MeshTTL; 1297 u8 element_ttl; 1298 bool auto_open_plinks; 1299 u32 dot11MeshNbrOffsetMaxNeighbor; 1300 u8 dot11MeshHWMPmaxPREQretries; 1301 u32 path_refresh_time; 1302 u16 min_discovery_timeout; 1303 u32 dot11MeshHWMPactivePathTimeout; 1304 u16 dot11MeshHWMPpreqMinInterval; 1305 u16 dot11MeshHWMPperrMinInterval; 1306 u16 dot11MeshHWMPnetDiameterTraversalTime; 1307 u8 dot11MeshHWMPRootMode; 1308 u16 dot11MeshHWMPRannInterval; 1309 bool dot11MeshGateAnnouncementProtocol; 1310 bool dot11MeshForwarding; 1311 s32 rssi_threshold; 1312 u16 ht_opmode; 1313 u32 dot11MeshHWMPactivePathToRootTimeout; 1314 u16 dot11MeshHWMProotInterval; 1315 u16 dot11MeshHWMPconfirmationInterval; 1316 enum nl80211_mesh_power_mode power_mode; 1317 u16 dot11MeshAwakeWindowDuration; 1318 u32 plink_timeout; 1319 }; 1320 1321 /** 1322 * struct mesh_setup - 802.11s mesh setup configuration 1323 * @chandef: defines the channel to use 1324 * @mesh_id: the mesh ID 1325 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes 1326 * @sync_method: which synchronization method to use 1327 * @path_sel_proto: which path selection protocol to use 1328 * @path_metric: which metric to use 1329 * @auth_id: which authentication method this mesh is using 1330 * @ie: vendor information elements (optional) 1331 * @ie_len: length of vendor information elements 1332 * @is_authenticated: this mesh requires authentication 1333 * @is_secure: this mesh uses security 1334 * @user_mpm: userspace handles all MPM functions 1335 * @dtim_period: DTIM period to use 1336 * @beacon_interval: beacon interval to use 1337 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a] 1338 * @basic_rates: basic rates to use when creating the mesh 1339 * 1340 * These parameters are fixed when the mesh is created. 1341 */ 1342 struct mesh_setup { 1343 struct cfg80211_chan_def chandef; 1344 const u8 *mesh_id; 1345 u8 mesh_id_len; 1346 u8 sync_method; 1347 u8 path_sel_proto; 1348 u8 path_metric; 1349 u8 auth_id; 1350 const u8 *ie; 1351 u8 ie_len; 1352 bool is_authenticated; 1353 bool is_secure; 1354 bool user_mpm; 1355 u8 dtim_period; 1356 u16 beacon_interval; 1357 int mcast_rate[IEEE80211_NUM_BANDS]; 1358 u32 basic_rates; 1359 }; 1360 1361 /** 1362 * struct ocb_setup - 802.11p OCB mode setup configuration 1363 * @chandef: defines the channel to use 1364 * 1365 * These parameters are fixed when connecting to the network 1366 */ 1367 struct ocb_setup { 1368 struct cfg80211_chan_def chandef; 1369 }; 1370 1371 /** 1372 * struct ieee80211_txq_params - TX queue parameters 1373 * @ac: AC identifier 1374 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled 1375 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range 1376 * 1..32767] 1377 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range 1378 * 1..32767] 1379 * @aifs: Arbitration interframe space [0..255] 1380 */ 1381 struct ieee80211_txq_params { 1382 enum nl80211_ac ac; 1383 u16 txop; 1384 u16 cwmin; 1385 u16 cwmax; 1386 u8 aifs; 1387 }; 1388 1389 /** 1390 * DOC: Scanning and BSS list handling 1391 * 1392 * The scanning process itself is fairly simple, but cfg80211 offers quite 1393 * a bit of helper functionality. To start a scan, the scan operation will 1394 * be invoked with a scan definition. This scan definition contains the 1395 * channels to scan, and the SSIDs to send probe requests for (including the 1396 * wildcard, if desired). A passive scan is indicated by having no SSIDs to 1397 * probe. Additionally, a scan request may contain extra information elements 1398 * that should be added to the probe request. The IEs are guaranteed to be 1399 * well-formed, and will not exceed the maximum length the driver advertised 1400 * in the wiphy structure. 1401 * 1402 * When scanning finds a BSS, cfg80211 needs to be notified of that, because 1403 * it is responsible for maintaining the BSS list; the driver should not 1404 * maintain a list itself. For this notification, various functions exist. 1405 * 1406 * Since drivers do not maintain a BSS list, there are also a number of 1407 * functions to search for a BSS and obtain information about it from the 1408 * BSS structure cfg80211 maintains. The BSS list is also made available 1409 * to userspace. 1410 */ 1411 1412 /** 1413 * struct cfg80211_ssid - SSID description 1414 * @ssid: the SSID 1415 * @ssid_len: length of the ssid 1416 */ 1417 struct cfg80211_ssid { 1418 u8 ssid[IEEE80211_MAX_SSID_LEN]; 1419 u8 ssid_len; 1420 }; 1421 1422 /** 1423 * struct cfg80211_scan_request - scan request description 1424 * 1425 * @ssids: SSIDs to scan for (active scan only) 1426 * @n_ssids: number of SSIDs 1427 * @channels: channels to scan on. 1428 * @n_channels: total number of channels to scan 1429 * @scan_width: channel width for scanning 1430 * @ie: optional information element(s) to add into Probe Request or %NULL 1431 * @ie_len: length of ie in octets 1432 * @flags: bit field of flags controlling operation 1433 * @rates: bitmap of rates to advertise for each band 1434 * @wiphy: the wiphy this was for 1435 * @scan_start: time (in jiffies) when the scan started 1436 * @wdev: the wireless device to scan for 1437 * @aborted: (internal) scan request was notified as aborted 1438 * @notified: (internal) scan request was notified as done or aborted 1439 * @no_cck: used to send probe requests at non CCK rate in 2GHz band 1440 * @mac_addr: MAC address used with randomisation 1441 * @mac_addr_mask: MAC address mask used with randomisation, bits that 1442 * are 0 in the mask should be randomised, bits that are 1 should 1443 * be taken from the @mac_addr 1444 */ 1445 struct cfg80211_scan_request { 1446 struct cfg80211_ssid *ssids; 1447 int n_ssids; 1448 u32 n_channels; 1449 enum nl80211_bss_scan_width scan_width; 1450 const u8 *ie; 1451 size_t ie_len; 1452 u32 flags; 1453 1454 u32 rates[IEEE80211_NUM_BANDS]; 1455 1456 struct wireless_dev *wdev; 1457 1458 u8 mac_addr[ETH_ALEN] __aligned(2); 1459 u8 mac_addr_mask[ETH_ALEN] __aligned(2); 1460 1461 /* internal */ 1462 struct wiphy *wiphy; 1463 unsigned long scan_start; 1464 bool aborted, notified; 1465 bool no_cck; 1466 1467 /* keep last */ 1468 struct ieee80211_channel *channels[0]; 1469 }; 1470 1471 static inline void get_random_mask_addr(u8 *buf, const u8 *addr, const u8 *mask) 1472 { 1473 int i; 1474 1475 get_random_bytes(buf, ETH_ALEN); 1476 for (i = 0; i < ETH_ALEN; i++) { 1477 buf[i] &= ~mask[i]; 1478 buf[i] |= addr[i] & mask[i]; 1479 } 1480 } 1481 1482 /** 1483 * struct cfg80211_match_set - sets of attributes to match 1484 * 1485 * @ssid: SSID to be matched; may be zero-length for no match (RSSI only) 1486 * @rssi_thold: don't report scan results below this threshold (in s32 dBm) 1487 */ 1488 struct cfg80211_match_set { 1489 struct cfg80211_ssid ssid; 1490 s32 rssi_thold; 1491 }; 1492 1493 /** 1494 * struct cfg80211_sched_scan_request - scheduled scan request description 1495 * 1496 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans) 1497 * @n_ssids: number of SSIDs 1498 * @n_channels: total number of channels to scan 1499 * @scan_width: channel width for scanning 1500 * @interval: interval between each scheduled scan cycle 1501 * @ie: optional information element(s) to add into Probe Request or %NULL 1502 * @ie_len: length of ie in octets 1503 * @flags: bit field of flags controlling operation 1504 * @match_sets: sets of parameters to be matched for a scan result 1505 * entry to be considered valid and to be passed to the host 1506 * (others are filtered out). 1507 * If ommited, all results are passed. 1508 * @n_match_sets: number of match sets 1509 * @wiphy: the wiphy this was for 1510 * @dev: the interface 1511 * @scan_start: start time of the scheduled scan 1512 * @channels: channels to scan 1513 * @min_rssi_thold: for drivers only supporting a single threshold, this 1514 * contains the minimum over all matchsets 1515 * @mac_addr: MAC address used with randomisation 1516 * @mac_addr_mask: MAC address mask used with randomisation, bits that 1517 * are 0 in the mask should be randomised, bits that are 1 should 1518 * be taken from the @mac_addr 1519 */ 1520 struct cfg80211_sched_scan_request { 1521 struct cfg80211_ssid *ssids; 1522 int n_ssids; 1523 u32 n_channels; 1524 enum nl80211_bss_scan_width scan_width; 1525 u32 interval; 1526 const u8 *ie; 1527 size_t ie_len; 1528 u32 flags; 1529 struct cfg80211_match_set *match_sets; 1530 int n_match_sets; 1531 s32 min_rssi_thold; 1532 1533 u8 mac_addr[ETH_ALEN] __aligned(2); 1534 u8 mac_addr_mask[ETH_ALEN] __aligned(2); 1535 1536 /* internal */ 1537 struct wiphy *wiphy; 1538 struct net_device *dev; 1539 unsigned long scan_start; 1540 1541 /* keep last */ 1542 struct ieee80211_channel *channels[0]; 1543 }; 1544 1545 /** 1546 * enum cfg80211_signal_type - signal type 1547 * 1548 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available 1549 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm) 1550 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100 1551 */ 1552 enum cfg80211_signal_type { 1553 CFG80211_SIGNAL_TYPE_NONE, 1554 CFG80211_SIGNAL_TYPE_MBM, 1555 CFG80211_SIGNAL_TYPE_UNSPEC, 1556 }; 1557 1558 /** 1559 * struct cfg80211_bss_ie_data - BSS entry IE data 1560 * @tsf: TSF contained in the frame that carried these IEs 1561 * @rcu_head: internal use, for freeing 1562 * @len: length of the IEs 1563 * @from_beacon: these IEs are known to come from a beacon 1564 * @data: IE data 1565 */ 1566 struct cfg80211_bss_ies { 1567 u64 tsf; 1568 struct rcu_head rcu_head; 1569 int len; 1570 bool from_beacon; 1571 u8 data[]; 1572 }; 1573 1574 /** 1575 * struct cfg80211_bss - BSS description 1576 * 1577 * This structure describes a BSS (which may also be a mesh network) 1578 * for use in scan results and similar. 1579 * 1580 * @channel: channel this BSS is on 1581 * @scan_width: width of the control channel 1582 * @bssid: BSSID of the BSS 1583 * @beacon_interval: the beacon interval as from the frame 1584 * @capability: the capability field in host byte order 1585 * @ies: the information elements (Note that there is no guarantee that these 1586 * are well-formed!); this is a pointer to either the beacon_ies or 1587 * proberesp_ies depending on whether Probe Response frame has been 1588 * received. It is always non-%NULL. 1589 * @beacon_ies: the information elements from the last Beacon frame 1590 * (implementation note: if @hidden_beacon_bss is set this struct doesn't 1591 * own the beacon_ies, but they're just pointers to the ones from the 1592 * @hidden_beacon_bss struct) 1593 * @proberesp_ies: the information elements from the last Probe Response frame 1594 * @hidden_beacon_bss: in case this BSS struct represents a probe response from 1595 * a BSS that hides the SSID in its beacon, this points to the BSS struct 1596 * that holds the beacon data. @beacon_ies is still valid, of course, and 1597 * points to the same data as hidden_beacon_bss->beacon_ies in that case. 1598 * @signal: signal strength value (type depends on the wiphy's signal_type) 1599 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes 1600 */ 1601 struct cfg80211_bss { 1602 struct ieee80211_channel *channel; 1603 enum nl80211_bss_scan_width scan_width; 1604 1605 const struct cfg80211_bss_ies __rcu *ies; 1606 const struct cfg80211_bss_ies __rcu *beacon_ies; 1607 const struct cfg80211_bss_ies __rcu *proberesp_ies; 1608 1609 struct cfg80211_bss *hidden_beacon_bss; 1610 1611 s32 signal; 1612 1613 u16 beacon_interval; 1614 u16 capability; 1615 1616 u8 bssid[ETH_ALEN]; 1617 1618 u8 priv[0] __aligned(sizeof(void *)); 1619 }; 1620 1621 /** 1622 * ieee80211_bss_get_ie - find IE with given ID 1623 * @bss: the bss to search 1624 * @ie: the IE ID 1625 * 1626 * Note that the return value is an RCU-protected pointer, so 1627 * rcu_read_lock() must be held when calling this function. 1628 * Return: %NULL if not found. 1629 */ 1630 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie); 1631 1632 1633 /** 1634 * struct cfg80211_auth_request - Authentication request data 1635 * 1636 * This structure provides information needed to complete IEEE 802.11 1637 * authentication. 1638 * 1639 * @bss: The BSS to authenticate with, the callee must obtain a reference 1640 * to it if it needs to keep it. 1641 * @auth_type: Authentication type (algorithm) 1642 * @ie: Extra IEs to add to Authentication frame or %NULL 1643 * @ie_len: Length of ie buffer in octets 1644 * @key_len: length of WEP key for shared key authentication 1645 * @key_idx: index of WEP key for shared key authentication 1646 * @key: WEP key for shared key authentication 1647 * @sae_data: Non-IE data to use with SAE or %NULL. This starts with 1648 * Authentication transaction sequence number field. 1649 * @sae_data_len: Length of sae_data buffer in octets 1650 */ 1651 struct cfg80211_auth_request { 1652 struct cfg80211_bss *bss; 1653 const u8 *ie; 1654 size_t ie_len; 1655 enum nl80211_auth_type auth_type; 1656 const u8 *key; 1657 u8 key_len, key_idx; 1658 const u8 *sae_data; 1659 size_t sae_data_len; 1660 }; 1661 1662 /** 1663 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association. 1664 * 1665 * @ASSOC_REQ_DISABLE_HT: Disable HT (802.11n) 1666 * @ASSOC_REQ_DISABLE_VHT: Disable VHT 1667 * @ASSOC_REQ_USE_RRM: Declare RRM capability in this association 1668 */ 1669 enum cfg80211_assoc_req_flags { 1670 ASSOC_REQ_DISABLE_HT = BIT(0), 1671 ASSOC_REQ_DISABLE_VHT = BIT(1), 1672 ASSOC_REQ_USE_RRM = BIT(2), 1673 }; 1674 1675 /** 1676 * struct cfg80211_assoc_request - (Re)Association request data 1677 * 1678 * This structure provides information needed to complete IEEE 802.11 1679 * (re)association. 1680 * @bss: The BSS to associate with. If the call is successful the driver is 1681 * given a reference that it must give back to cfg80211_send_rx_assoc() 1682 * or to cfg80211_assoc_timeout(). To ensure proper refcounting, new 1683 * association requests while already associating must be rejected. 1684 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL 1685 * @ie_len: Length of ie buffer in octets 1686 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association 1687 * @crypto: crypto settings 1688 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame 1689 * @flags: See &enum cfg80211_assoc_req_flags 1690 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1691 * will be used in ht_capa. Un-supported values will be ignored. 1692 * @ht_capa_mask: The bits of ht_capa which are to be used. 1693 * @vht_capa: VHT capability override 1694 * @vht_capa_mask: VHT capability mask indicating which fields to use 1695 */ 1696 struct cfg80211_assoc_request { 1697 struct cfg80211_bss *bss; 1698 const u8 *ie, *prev_bssid; 1699 size_t ie_len; 1700 struct cfg80211_crypto_settings crypto; 1701 bool use_mfp; 1702 u32 flags; 1703 struct ieee80211_ht_cap ht_capa; 1704 struct ieee80211_ht_cap ht_capa_mask; 1705 struct ieee80211_vht_cap vht_capa, vht_capa_mask; 1706 }; 1707 1708 /** 1709 * struct cfg80211_deauth_request - Deauthentication request data 1710 * 1711 * This structure provides information needed to complete IEEE 802.11 1712 * deauthentication. 1713 * 1714 * @bssid: the BSSID of the BSS to deauthenticate from 1715 * @ie: Extra IEs to add to Deauthentication frame or %NULL 1716 * @ie_len: Length of ie buffer in octets 1717 * @reason_code: The reason code for the deauthentication 1718 * @local_state_change: if set, change local state only and 1719 * do not set a deauth frame 1720 */ 1721 struct cfg80211_deauth_request { 1722 const u8 *bssid; 1723 const u8 *ie; 1724 size_t ie_len; 1725 u16 reason_code; 1726 bool local_state_change; 1727 }; 1728 1729 /** 1730 * struct cfg80211_disassoc_request - Disassociation request data 1731 * 1732 * This structure provides information needed to complete IEEE 802.11 1733 * disassocation. 1734 * 1735 * @bss: the BSS to disassociate from 1736 * @ie: Extra IEs to add to Disassociation frame or %NULL 1737 * @ie_len: Length of ie buffer in octets 1738 * @reason_code: The reason code for the disassociation 1739 * @local_state_change: This is a request for a local state only, i.e., no 1740 * Disassociation frame is to be transmitted. 1741 */ 1742 struct cfg80211_disassoc_request { 1743 struct cfg80211_bss *bss; 1744 const u8 *ie; 1745 size_t ie_len; 1746 u16 reason_code; 1747 bool local_state_change; 1748 }; 1749 1750 /** 1751 * struct cfg80211_ibss_params - IBSS parameters 1752 * 1753 * This structure defines the IBSS parameters for the join_ibss() 1754 * method. 1755 * 1756 * @ssid: The SSID, will always be non-null. 1757 * @ssid_len: The length of the SSID, will always be non-zero. 1758 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not 1759 * search for IBSSs with a different BSSID. 1760 * @chandef: defines the channel to use if no other IBSS to join can be found 1761 * @channel_fixed: The channel should be fixed -- do not search for 1762 * IBSSs to join on other channels. 1763 * @ie: information element(s) to include in the beacon 1764 * @ie_len: length of that 1765 * @beacon_interval: beacon interval to use 1766 * @privacy: this is a protected network, keys will be configured 1767 * after joining 1768 * @control_port: whether user space controls IEEE 802.1X port, i.e., 1769 * sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is 1770 * required to assume that the port is unauthorized until authorized by 1771 * user space. Otherwise, port is marked authorized by default. 1772 * @userspace_handles_dfs: whether user space controls DFS operation, i.e. 1773 * changes the channel when a radar is detected. This is required 1774 * to operate on DFS channels. 1775 * @basic_rates: bitmap of basic rates to use when creating the IBSS 1776 * @mcast_rate: per-band multicast rate index + 1 (0: disabled) 1777 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1778 * will be used in ht_capa. Un-supported values will be ignored. 1779 * @ht_capa_mask: The bits of ht_capa which are to be used. 1780 */ 1781 struct cfg80211_ibss_params { 1782 const u8 *ssid; 1783 const u8 *bssid; 1784 struct cfg80211_chan_def chandef; 1785 const u8 *ie; 1786 u8 ssid_len, ie_len; 1787 u16 beacon_interval; 1788 u32 basic_rates; 1789 bool channel_fixed; 1790 bool privacy; 1791 bool control_port; 1792 bool userspace_handles_dfs; 1793 int mcast_rate[IEEE80211_NUM_BANDS]; 1794 struct ieee80211_ht_cap ht_capa; 1795 struct ieee80211_ht_cap ht_capa_mask; 1796 }; 1797 1798 /** 1799 * struct cfg80211_connect_params - Connection parameters 1800 * 1801 * This structure provides information needed to complete IEEE 802.11 1802 * authentication and association. 1803 * 1804 * @channel: The channel to use or %NULL if not specified (auto-select based 1805 * on scan results) 1806 * @channel_hint: The channel of the recommended BSS for initial connection or 1807 * %NULL if not specified 1808 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan 1809 * results) 1810 * @bssid_hint: The recommended AP BSSID for initial connection to the BSS or 1811 * %NULL if not specified. Unlike the @bssid parameter, the driver is 1812 * allowed to ignore this @bssid_hint if it has knowledge of a better BSS 1813 * to use. 1814 * @ssid: SSID 1815 * @ssid_len: Length of ssid in octets 1816 * @auth_type: Authentication type (algorithm) 1817 * @ie: IEs for association request 1818 * @ie_len: Length of assoc_ie in octets 1819 * @privacy: indicates whether privacy-enabled APs should be used 1820 * @mfp: indicate whether management frame protection is used 1821 * @crypto: crypto settings 1822 * @key_len: length of WEP key for shared key authentication 1823 * @key_idx: index of WEP key for shared key authentication 1824 * @key: WEP key for shared key authentication 1825 * @flags: See &enum cfg80211_assoc_req_flags 1826 * @bg_scan_period: Background scan period in seconds 1827 * or -1 to indicate that default value is to be used. 1828 * @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask 1829 * will be used in ht_capa. Un-supported values will be ignored. 1830 * @ht_capa_mask: The bits of ht_capa which are to be used. 1831 * @vht_capa: VHT Capability overrides 1832 * @vht_capa_mask: The bits of vht_capa which are to be used. 1833 */ 1834 struct cfg80211_connect_params { 1835 struct ieee80211_channel *channel; 1836 struct ieee80211_channel *channel_hint; 1837 const u8 *bssid; 1838 const u8 *bssid_hint; 1839 const u8 *ssid; 1840 size_t ssid_len; 1841 enum nl80211_auth_type auth_type; 1842 const u8 *ie; 1843 size_t ie_len; 1844 bool privacy; 1845 enum nl80211_mfp mfp; 1846 struct cfg80211_crypto_settings crypto; 1847 const u8 *key; 1848 u8 key_len, key_idx; 1849 u32 flags; 1850 int bg_scan_period; 1851 struct ieee80211_ht_cap ht_capa; 1852 struct ieee80211_ht_cap ht_capa_mask; 1853 struct ieee80211_vht_cap vht_capa; 1854 struct ieee80211_vht_cap vht_capa_mask; 1855 }; 1856 1857 /** 1858 * enum wiphy_params_flags - set_wiphy_params bitfield values 1859 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed 1860 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed 1861 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed 1862 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed 1863 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed 1864 * @WIPHY_PARAM_DYN_ACK: dynack has been enabled 1865 */ 1866 enum wiphy_params_flags { 1867 WIPHY_PARAM_RETRY_SHORT = 1 << 0, 1868 WIPHY_PARAM_RETRY_LONG = 1 << 1, 1869 WIPHY_PARAM_FRAG_THRESHOLD = 1 << 2, 1870 WIPHY_PARAM_RTS_THRESHOLD = 1 << 3, 1871 WIPHY_PARAM_COVERAGE_CLASS = 1 << 4, 1872 WIPHY_PARAM_DYN_ACK = 1 << 5, 1873 }; 1874 1875 /* 1876 * cfg80211_bitrate_mask - masks for bitrate control 1877 */ 1878 struct cfg80211_bitrate_mask { 1879 struct { 1880 u32 legacy; 1881 u8 ht_mcs[IEEE80211_HT_MCS_MASK_LEN]; 1882 u16 vht_mcs[NL80211_VHT_NSS_MAX]; 1883 enum nl80211_txrate_gi gi; 1884 } control[IEEE80211_NUM_BANDS]; 1885 }; 1886 /** 1887 * struct cfg80211_pmksa - PMK Security Association 1888 * 1889 * This structure is passed to the set/del_pmksa() method for PMKSA 1890 * caching. 1891 * 1892 * @bssid: The AP's BSSID. 1893 * @pmkid: The PMK material itself. 1894 */ 1895 struct cfg80211_pmksa { 1896 const u8 *bssid; 1897 const u8 *pmkid; 1898 }; 1899 1900 /** 1901 * struct cfg80211_pkt_pattern - packet pattern 1902 * @mask: bitmask where to match pattern and where to ignore bytes, 1903 * one bit per byte, in same format as nl80211 1904 * @pattern: bytes to match where bitmask is 1 1905 * @pattern_len: length of pattern (in bytes) 1906 * @pkt_offset: packet offset (in bytes) 1907 * 1908 * Internal note: @mask and @pattern are allocated in one chunk of 1909 * memory, free @mask only! 1910 */ 1911 struct cfg80211_pkt_pattern { 1912 const u8 *mask, *pattern; 1913 int pattern_len; 1914 int pkt_offset; 1915 }; 1916 1917 /** 1918 * struct cfg80211_wowlan_tcp - TCP connection parameters 1919 * 1920 * @sock: (internal) socket for source port allocation 1921 * @src: source IP address 1922 * @dst: destination IP address 1923 * @dst_mac: destination MAC address 1924 * @src_port: source port 1925 * @dst_port: destination port 1926 * @payload_len: data payload length 1927 * @payload: data payload buffer 1928 * @payload_seq: payload sequence stamping configuration 1929 * @data_interval: interval at which to send data packets 1930 * @wake_len: wakeup payload match length 1931 * @wake_data: wakeup payload match data 1932 * @wake_mask: wakeup payload match mask 1933 * @tokens_size: length of the tokens buffer 1934 * @payload_tok: payload token usage configuration 1935 */ 1936 struct cfg80211_wowlan_tcp { 1937 struct socket *sock; 1938 __be32 src, dst; 1939 u16 src_port, dst_port; 1940 u8 dst_mac[ETH_ALEN]; 1941 int payload_len; 1942 const u8 *payload; 1943 struct nl80211_wowlan_tcp_data_seq payload_seq; 1944 u32 data_interval; 1945 u32 wake_len; 1946 const u8 *wake_data, *wake_mask; 1947 u32 tokens_size; 1948 /* must be last, variable member */ 1949 struct nl80211_wowlan_tcp_data_token payload_tok; 1950 }; 1951 1952 /** 1953 * struct cfg80211_wowlan - Wake on Wireless-LAN support info 1954 * 1955 * This structure defines the enabled WoWLAN triggers for the device. 1956 * @any: wake up on any activity -- special trigger if device continues 1957 * operating as normal during suspend 1958 * @disconnect: wake up if getting disconnected 1959 * @magic_pkt: wake up on receiving magic packet 1960 * @patterns: wake up on receiving packet matching a pattern 1961 * @n_patterns: number of patterns 1962 * @gtk_rekey_failure: wake up on GTK rekey failure 1963 * @eap_identity_req: wake up on EAP identity request packet 1964 * @four_way_handshake: wake up on 4-way handshake 1965 * @rfkill_release: wake up when rfkill is released 1966 * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h. 1967 * NULL if not configured. 1968 * @nd_config: configuration for the scan to be used for net detect wake. 1969 */ 1970 struct cfg80211_wowlan { 1971 bool any, disconnect, magic_pkt, gtk_rekey_failure, 1972 eap_identity_req, four_way_handshake, 1973 rfkill_release; 1974 struct cfg80211_pkt_pattern *patterns; 1975 struct cfg80211_wowlan_tcp *tcp; 1976 int n_patterns; 1977 struct cfg80211_sched_scan_request *nd_config; 1978 }; 1979 1980 /** 1981 * struct cfg80211_coalesce_rules - Coalesce rule parameters 1982 * 1983 * This structure defines coalesce rule for the device. 1984 * @delay: maximum coalescing delay in msecs. 1985 * @condition: condition for packet coalescence. 1986 * see &enum nl80211_coalesce_condition. 1987 * @patterns: array of packet patterns 1988 * @n_patterns: number of patterns 1989 */ 1990 struct cfg80211_coalesce_rules { 1991 int delay; 1992 enum nl80211_coalesce_condition condition; 1993 struct cfg80211_pkt_pattern *patterns; 1994 int n_patterns; 1995 }; 1996 1997 /** 1998 * struct cfg80211_coalesce - Packet coalescing settings 1999 * 2000 * This structure defines coalescing settings. 2001 * @rules: array of coalesce rules 2002 * @n_rules: number of rules 2003 */ 2004 struct cfg80211_coalesce { 2005 struct cfg80211_coalesce_rules *rules; 2006 int n_rules; 2007 }; 2008 2009 /** 2010 * struct cfg80211_wowlan_nd_match - information about the match 2011 * 2012 * @ssid: SSID of the match that triggered the wake up 2013 * @n_channels: Number of channels where the match occurred. This 2014 * value may be zero if the driver can't report the channels. 2015 * @channels: center frequencies of the channels where a match 2016 * occurred (in MHz) 2017 */ 2018 struct cfg80211_wowlan_nd_match { 2019 struct cfg80211_ssid ssid; 2020 int n_channels; 2021 u32 channels[]; 2022 }; 2023 2024 /** 2025 * struct cfg80211_wowlan_nd_info - net detect wake up information 2026 * 2027 * @n_matches: Number of match information instances provided in 2028 * @matches. This value may be zero if the driver can't provide 2029 * match information. 2030 * @matches: Array of pointers to matches containing information about 2031 * the matches that triggered the wake up. 2032 */ 2033 struct cfg80211_wowlan_nd_info { 2034 int n_matches; 2035 struct cfg80211_wowlan_nd_match *matches[]; 2036 }; 2037 2038 /** 2039 * struct cfg80211_wowlan_wakeup - wakeup report 2040 * @disconnect: woke up by getting disconnected 2041 * @magic_pkt: woke up by receiving magic packet 2042 * @gtk_rekey_failure: woke up by GTK rekey failure 2043 * @eap_identity_req: woke up by EAP identity request packet 2044 * @four_way_handshake: woke up by 4-way handshake 2045 * @rfkill_release: woke up by rfkill being released 2046 * @pattern_idx: pattern that caused wakeup, -1 if not due to pattern 2047 * @packet_present_len: copied wakeup packet data 2048 * @packet_len: original wakeup packet length 2049 * @packet: The packet causing the wakeup, if any. 2050 * @packet_80211: For pattern match, magic packet and other data 2051 * frame triggers an 802.3 frame should be reported, for 2052 * disconnect due to deauth 802.11 frame. This indicates which 2053 * it is. 2054 * @tcp_match: TCP wakeup packet received 2055 * @tcp_connlost: TCP connection lost or failed to establish 2056 * @tcp_nomoretokens: TCP data ran out of tokens 2057 * @net_detect: if not %NULL, woke up because of net detect 2058 */ 2059 struct cfg80211_wowlan_wakeup { 2060 bool disconnect, magic_pkt, gtk_rekey_failure, 2061 eap_identity_req, four_way_handshake, 2062 rfkill_release, packet_80211, 2063 tcp_match, tcp_connlost, tcp_nomoretokens; 2064 s32 pattern_idx; 2065 u32 packet_present_len, packet_len; 2066 const void *packet; 2067 struct cfg80211_wowlan_nd_info *net_detect; 2068 }; 2069 2070 /** 2071 * struct cfg80211_gtk_rekey_data - rekey data 2072 * @kek: key encryption key (NL80211_KEK_LEN bytes) 2073 * @kck: key confirmation key (NL80211_KCK_LEN bytes) 2074 * @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes) 2075 */ 2076 struct cfg80211_gtk_rekey_data { 2077 const u8 *kek, *kck, *replay_ctr; 2078 }; 2079 2080 /** 2081 * struct cfg80211_update_ft_ies_params - FT IE Information 2082 * 2083 * This structure provides information needed to update the fast transition IE 2084 * 2085 * @md: The Mobility Domain ID, 2 Octet value 2086 * @ie: Fast Transition IEs 2087 * @ie_len: Length of ft_ie in octets 2088 */ 2089 struct cfg80211_update_ft_ies_params { 2090 u16 md; 2091 const u8 *ie; 2092 size_t ie_len; 2093 }; 2094 2095 /** 2096 * struct cfg80211_mgmt_tx_params - mgmt tx parameters 2097 * 2098 * This structure provides information needed to transmit a mgmt frame 2099 * 2100 * @chan: channel to use 2101 * @offchan: indicates wether off channel operation is required 2102 * @wait: duration for ROC 2103 * @buf: buffer to transmit 2104 * @len: buffer length 2105 * @no_cck: don't use cck rates for this frame 2106 * @dont_wait_for_ack: tells the low level not to wait for an ack 2107 * @n_csa_offsets: length of csa_offsets array 2108 * @csa_offsets: array of all the csa offsets in the frame 2109 */ 2110 struct cfg80211_mgmt_tx_params { 2111 struct ieee80211_channel *chan; 2112 bool offchan; 2113 unsigned int wait; 2114 const u8 *buf; 2115 size_t len; 2116 bool no_cck; 2117 bool dont_wait_for_ack; 2118 int n_csa_offsets; 2119 const u16 *csa_offsets; 2120 }; 2121 2122 /** 2123 * struct cfg80211_dscp_exception - DSCP exception 2124 * 2125 * @dscp: DSCP value that does not adhere to the user priority range definition 2126 * @up: user priority value to which the corresponding DSCP value belongs 2127 */ 2128 struct cfg80211_dscp_exception { 2129 u8 dscp; 2130 u8 up; 2131 }; 2132 2133 /** 2134 * struct cfg80211_dscp_range - DSCP range definition for user priority 2135 * 2136 * @low: lowest DSCP value of this user priority range, inclusive 2137 * @high: highest DSCP value of this user priority range, inclusive 2138 */ 2139 struct cfg80211_dscp_range { 2140 u8 low; 2141 u8 high; 2142 }; 2143 2144 /* QoS Map Set element length defined in IEEE Std 802.11-2012, 8.4.2.97 */ 2145 #define IEEE80211_QOS_MAP_MAX_EX 21 2146 #define IEEE80211_QOS_MAP_LEN_MIN 16 2147 #define IEEE80211_QOS_MAP_LEN_MAX \ 2148 (IEEE80211_QOS_MAP_LEN_MIN + 2 * IEEE80211_QOS_MAP_MAX_EX) 2149 2150 /** 2151 * struct cfg80211_qos_map - QoS Map Information 2152 * 2153 * This struct defines the Interworking QoS map setting for DSCP values 2154 * 2155 * @num_des: number of DSCP exceptions (0..21) 2156 * @dscp_exception: optionally up to maximum of 21 DSCP exceptions from 2157 * the user priority DSCP range definition 2158 * @up: DSCP range definition for a particular user priority 2159 */ 2160 struct cfg80211_qos_map { 2161 u8 num_des; 2162 struct cfg80211_dscp_exception dscp_exception[IEEE80211_QOS_MAP_MAX_EX]; 2163 struct cfg80211_dscp_range up[8]; 2164 }; 2165 2166 /** 2167 * struct cfg80211_ops - backend description for wireless configuration 2168 * 2169 * This struct is registered by fullmac card drivers and/or wireless stacks 2170 * in order to handle configuration requests on their interfaces. 2171 * 2172 * All callbacks except where otherwise noted should return 0 2173 * on success or a negative error code. 2174 * 2175 * All operations are currently invoked under rtnl for consistency with the 2176 * wireless extensions but this is subject to reevaluation as soon as this 2177 * code is used more widely and we have a first user without wext. 2178 * 2179 * @suspend: wiphy device needs to be suspended. The variable @wow will 2180 * be %NULL or contain the enabled Wake-on-Wireless triggers that are 2181 * configured for the device. 2182 * @resume: wiphy device needs to be resumed 2183 * @set_wakeup: Called when WoWLAN is enabled/disabled, use this callback 2184 * to call device_set_wakeup_enable() to enable/disable wakeup from 2185 * the device. 2186 * 2187 * @add_virtual_intf: create a new virtual interface with the given name, 2188 * must set the struct wireless_dev's iftype. Beware: You must create 2189 * the new netdev in the wiphy's network namespace! Returns the struct 2190 * wireless_dev, or an ERR_PTR. For P2P device wdevs, the driver must 2191 * also set the address member in the wdev. 2192 * 2193 * @del_virtual_intf: remove the virtual interface 2194 * 2195 * @change_virtual_intf: change type/configuration of virtual interface, 2196 * keep the struct wireless_dev's iftype updated. 2197 * 2198 * @add_key: add a key with the given parameters. @mac_addr will be %NULL 2199 * when adding a group key. 2200 * 2201 * @get_key: get information about the key with the given parameters. 2202 * @mac_addr will be %NULL when requesting information for a group 2203 * key. All pointers given to the @callback function need not be valid 2204 * after it returns. This function should return an error if it is 2205 * not possible to retrieve the key, -ENOENT if it doesn't exist. 2206 * 2207 * @del_key: remove a key given the @mac_addr (%NULL for a group key) 2208 * and @key_index, return -ENOENT if the key doesn't exist. 2209 * 2210 * @set_default_key: set the default key on an interface 2211 * 2212 * @set_default_mgmt_key: set the default management frame key on an interface 2213 * 2214 * @set_rekey_data: give the data necessary for GTK rekeying to the driver 2215 * 2216 * @start_ap: Start acting in AP mode defined by the parameters. 2217 * @change_beacon: Change the beacon parameters for an access point mode 2218 * interface. This should reject the call when AP mode wasn't started. 2219 * @stop_ap: Stop being an AP, including stopping beaconing. 2220 * 2221 * @add_station: Add a new station. 2222 * @del_station: Remove a station 2223 * @change_station: Modify a given station. Note that flags changes are not much 2224 * validated in cfg80211, in particular the auth/assoc/authorized flags 2225 * might come to the driver in invalid combinations -- make sure to check 2226 * them, also against the existing state! Drivers must call 2227 * cfg80211_check_station_change() to validate the information. 2228 * @get_station: get station information for the station identified by @mac 2229 * @dump_station: dump station callback -- resume dump at index @idx 2230 * 2231 * @add_mpath: add a fixed mesh path 2232 * @del_mpath: delete a given mesh path 2233 * @change_mpath: change a given mesh path 2234 * @get_mpath: get a mesh path for the given parameters 2235 * @dump_mpath: dump mesh path callback -- resume dump at index @idx 2236 * @get_mpp: get a mesh proxy path for the given parameters 2237 * @dump_mpp: dump mesh proxy path callback -- resume dump at index @idx 2238 * @join_mesh: join the mesh network with the specified parameters 2239 * (invoked with the wireless_dev mutex held) 2240 * @leave_mesh: leave the current mesh network 2241 * (invoked with the wireless_dev mutex held) 2242 * 2243 * @get_mesh_config: Get the current mesh configuration 2244 * 2245 * @update_mesh_config: Update mesh parameters on a running mesh. 2246 * The mask is a bitfield which tells us which parameters to 2247 * set, and which to leave alone. 2248 * 2249 * @change_bss: Modify parameters for a given BSS. 2250 * 2251 * @set_txq_params: Set TX queue parameters 2252 * 2253 * @libertas_set_mesh_channel: Only for backward compatibility for libertas, 2254 * as it doesn't implement join_mesh and needs to set the channel to 2255 * join the mesh instead. 2256 * 2257 * @set_monitor_channel: Set the monitor mode channel for the device. If other 2258 * interfaces are active this callback should reject the configuration. 2259 * If no interfaces are active or the device is down, the channel should 2260 * be stored for when a monitor interface becomes active. 2261 * 2262 * @scan: Request to do a scan. If returning zero, the scan request is given 2263 * the driver, and will be valid until passed to cfg80211_scan_done(). 2264 * For scan results, call cfg80211_inform_bss(); you can call this outside 2265 * the scan/scan_done bracket too. 2266 * 2267 * @auth: Request to authenticate with the specified peer 2268 * (invoked with the wireless_dev mutex held) 2269 * @assoc: Request to (re)associate with the specified peer 2270 * (invoked with the wireless_dev mutex held) 2271 * @deauth: Request to deauthenticate from the specified peer 2272 * (invoked with the wireless_dev mutex held) 2273 * @disassoc: Request to disassociate from the specified peer 2274 * (invoked with the wireless_dev mutex held) 2275 * 2276 * @connect: Connect to the ESS with the specified parameters. When connected, 2277 * call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS. 2278 * If the connection fails for some reason, call cfg80211_connect_result() 2279 * with the status from the AP. 2280 * (invoked with the wireless_dev mutex held) 2281 * @disconnect: Disconnect from the BSS/ESS. 2282 * (invoked with the wireless_dev mutex held) 2283 * 2284 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call 2285 * cfg80211_ibss_joined(), also call that function when changing BSSID due 2286 * to a merge. 2287 * (invoked with the wireless_dev mutex held) 2288 * @leave_ibss: Leave the IBSS. 2289 * (invoked with the wireless_dev mutex held) 2290 * 2291 * @set_mcast_rate: Set the specified multicast rate (only if vif is in ADHOC or 2292 * MESH mode) 2293 * 2294 * @set_wiphy_params: Notify that wiphy parameters have changed; 2295 * @changed bitfield (see &enum wiphy_params_flags) describes which values 2296 * have changed. The actual parameter values are available in 2297 * struct wiphy. If returning an error, no value should be changed. 2298 * 2299 * @set_tx_power: set the transmit power according to the parameters, 2300 * the power passed is in mBm, to get dBm use MBM_TO_DBM(). The 2301 * wdev may be %NULL if power was set for the wiphy, and will 2302 * always be %NULL unless the driver supports per-vif TX power 2303 * (as advertised by the nl80211 feature flag.) 2304 * @get_tx_power: store the current TX power into the dbm variable; 2305 * return 0 if successful 2306 * 2307 * @set_wds_peer: set the WDS peer for a WDS interface 2308 * 2309 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting 2310 * functions to adjust rfkill hw state 2311 * 2312 * @dump_survey: get site survey information. 2313 * 2314 * @remain_on_channel: Request the driver to remain awake on the specified 2315 * channel for the specified duration to complete an off-channel 2316 * operation (e.g., public action frame exchange). When the driver is 2317 * ready on the requested channel, it must indicate this with an event 2318 * notification by calling cfg80211_ready_on_channel(). 2319 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation. 2320 * This allows the operation to be terminated prior to timeout based on 2321 * the duration value. 2322 * @mgmt_tx: Transmit a management frame. 2323 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management 2324 * frame on another channel 2325 * 2326 * @testmode_cmd: run a test mode command; @wdev may be %NULL 2327 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be 2328 * used by the function, but 0 and 1 must not be touched. Additionally, 2329 * return error codes other than -ENOBUFS and -ENOENT will terminate the 2330 * dump and return to userspace with an error, so be careful. If any data 2331 * was passed in from userspace then the data/len arguments will be present 2332 * and point to the data contained in %NL80211_ATTR_TESTDATA. 2333 * 2334 * @set_bitrate_mask: set the bitrate mask configuration 2335 * 2336 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac 2337 * devices running firmwares capable of generating the (re) association 2338 * RSN IE. It allows for faster roaming between WPA2 BSSIDs. 2339 * @del_pmksa: Delete a cached PMKID. 2340 * @flush_pmksa: Flush all cached PMKIDs. 2341 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1 2342 * allows the driver to adjust the dynamic ps timeout value. 2343 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold. 2344 * @set_cqm_txe_config: Configure connection quality monitor TX error 2345 * thresholds. 2346 * @sched_scan_start: Tell the driver to start a scheduled scan. 2347 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled scan. This 2348 * call must stop the scheduled scan and be ready for starting a new one 2349 * before it returns, i.e. @sched_scan_start may be called immediately 2350 * after that again and should not fail in that case. The driver should 2351 * not call cfg80211_sched_scan_stopped() for a requested stop (when this 2352 * method returns 0.) 2353 * 2354 * @mgmt_frame_register: Notify driver that a management frame type was 2355 * registered. Note that this callback may not sleep, and cannot run 2356 * concurrently with itself. 2357 * 2358 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. 2359 * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may 2360 * reject TX/RX mask combinations they cannot support by returning -EINVAL 2361 * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). 2362 * 2363 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). 2364 * 2365 * @tdls_mgmt: Transmit a TDLS management frame. 2366 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup). 2367 * 2368 * @probe_client: probe an associated client, must return a cookie that it 2369 * later passes to cfg80211_probe_status(). 2370 * 2371 * @set_noack_map: Set the NoAck Map for the TIDs. 2372 * 2373 * @get_channel: Get the current operating channel for the virtual interface. 2374 * For monitor interfaces, it should return %NULL unless there's a single 2375 * current monitoring channel. 2376 * 2377 * @start_p2p_device: Start the given P2P device. 2378 * @stop_p2p_device: Stop the given P2P device. 2379 * 2380 * @set_mac_acl: Sets MAC address control list in AP and P2P GO mode. 2381 * Parameters include ACL policy, an array of MAC address of stations 2382 * and the number of MAC addresses. If there is already a list in driver 2383 * this new list replaces the existing one. Driver has to clear its ACL 2384 * when number of MAC addresses entries is passed as 0. Drivers which 2385 * advertise the support for MAC based ACL have to implement this callback. 2386 * 2387 * @start_radar_detection: Start radar detection in the driver. 2388 * 2389 * @update_ft_ies: Provide updated Fast BSS Transition information to the 2390 * driver. If the SME is in the driver/firmware, this information can be 2391 * used in building Authentication and Reassociation Request frames. 2392 * 2393 * @crit_proto_start: Indicates a critical protocol needs more link reliability 2394 * for a given duration (milliseconds). The protocol is provided so the 2395 * driver can take the most appropriate actions. 2396 * @crit_proto_stop: Indicates critical protocol no longer needs increased link 2397 * reliability. This operation can not fail. 2398 * @set_coalesce: Set coalesce parameters. 2399 * 2400 * @channel_switch: initiate channel-switch procedure (with CSA). Driver is 2401 * responsible for veryfing if the switch is possible. Since this is 2402 * inherently tricky driver may decide to disconnect an interface later 2403 * with cfg80211_stop_iface(). This doesn't mean driver can accept 2404 * everything. It should do it's best to verify requests and reject them 2405 * as soon as possible. 2406 * 2407 * @set_qos_map: Set QoS mapping information to the driver 2408 * 2409 * @set_ap_chanwidth: Set the AP (including P2P GO) mode channel width for the 2410 * given interface This is used e.g. for dynamic HT 20/40 MHz channel width 2411 * changes during the lifetime of the BSS. 2412 * 2413 * @add_tx_ts: validate (if admitted_time is 0) or add a TX TS to the device 2414 * with the given parameters; action frame exchange has been handled by 2415 * userspace so this just has to modify the TX path to take the TS into 2416 * account. 2417 * If the admitted time is 0 just validate the parameters to make sure 2418 * the session can be created at all; it is valid to just always return 2419 * success for that but that may result in inefficient behaviour (handshake 2420 * with the peer followed by immediate teardown when the addition is later 2421 * rejected) 2422 * @del_tx_ts: remove an existing TX TS 2423 * 2424 * @join_ocb: join the OCB network with the specified parameters 2425 * (invoked with the wireless_dev mutex held) 2426 * @leave_ocb: leave the current OCB network 2427 * (invoked with the wireless_dev mutex held) 2428 * 2429 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver 2430 * is responsible for continually initiating channel-switching operations 2431 * and returning to the base channel for communication with the AP. 2432 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both 2433 * peers must be on the base channel when the call completes. 2434 */ 2435 struct cfg80211_ops { 2436 int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow); 2437 int (*resume)(struct wiphy *wiphy); 2438 void (*set_wakeup)(struct wiphy *wiphy, bool enabled); 2439 2440 struct wireless_dev * (*add_virtual_intf)(struct wiphy *wiphy, 2441 const char *name, 2442 enum nl80211_iftype type, 2443 u32 *flags, 2444 struct vif_params *params); 2445 int (*del_virtual_intf)(struct wiphy *wiphy, 2446 struct wireless_dev *wdev); 2447 int (*change_virtual_intf)(struct wiphy *wiphy, 2448 struct net_device *dev, 2449 enum nl80211_iftype type, u32 *flags, 2450 struct vif_params *params); 2451 2452 int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, 2453 u8 key_index, bool pairwise, const u8 *mac_addr, 2454 struct key_params *params); 2455 int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, 2456 u8 key_index, bool pairwise, const u8 *mac_addr, 2457 void *cookie, 2458 void (*callback)(void *cookie, struct key_params*)); 2459 int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, 2460 u8 key_index, bool pairwise, const u8 *mac_addr); 2461 int (*set_default_key)(struct wiphy *wiphy, 2462 struct net_device *netdev, 2463 u8 key_index, bool unicast, bool multicast); 2464 int (*set_default_mgmt_key)(struct wiphy *wiphy, 2465 struct net_device *netdev, 2466 u8 key_index); 2467 2468 int (*start_ap)(struct wiphy *wiphy, struct net_device *dev, 2469 struct cfg80211_ap_settings *settings); 2470 int (*change_beacon)(struct wiphy *wiphy, struct net_device *dev, 2471 struct cfg80211_beacon_data *info); 2472 int (*stop_ap)(struct wiphy *wiphy, struct net_device *dev); 2473 2474 2475 int (*add_station)(struct wiphy *wiphy, struct net_device *dev, 2476 const u8 *mac, 2477 struct station_parameters *params); 2478 int (*del_station)(struct wiphy *wiphy, struct net_device *dev, 2479 struct station_del_parameters *params); 2480 int (*change_station)(struct wiphy *wiphy, struct net_device *dev, 2481 const u8 *mac, 2482 struct station_parameters *params); 2483 int (*get_station)(struct wiphy *wiphy, struct net_device *dev, 2484 const u8 *mac, struct station_info *sinfo); 2485 int (*dump_station)(struct wiphy *wiphy, struct net_device *dev, 2486 int idx, u8 *mac, struct station_info *sinfo); 2487 2488 int (*add_mpath)(struct wiphy *wiphy, struct net_device *dev, 2489 const u8 *dst, const u8 *next_hop); 2490 int (*del_mpath)(struct wiphy *wiphy, struct net_device *dev, 2491 const u8 *dst); 2492 int (*change_mpath)(struct wiphy *wiphy, struct net_device *dev, 2493 const u8 *dst, const u8 *next_hop); 2494 int (*get_mpath)(struct wiphy *wiphy, struct net_device *dev, 2495 u8 *dst, u8 *next_hop, struct mpath_info *pinfo); 2496 int (*dump_mpath)(struct wiphy *wiphy, struct net_device *dev, 2497 int idx, u8 *dst, u8 *next_hop, 2498 struct mpath_info *pinfo); 2499 int (*get_mpp)(struct wiphy *wiphy, struct net_device *dev, 2500 u8 *dst, u8 *mpp, struct mpath_info *pinfo); 2501 int (*dump_mpp)(struct wiphy *wiphy, struct net_device *dev, 2502 int idx, u8 *dst, u8 *mpp, 2503 struct mpath_info *pinfo); 2504 int (*get_mesh_config)(struct wiphy *wiphy, 2505 struct net_device *dev, 2506 struct mesh_config *conf); 2507 int (*update_mesh_config)(struct wiphy *wiphy, 2508 struct net_device *dev, u32 mask, 2509 const struct mesh_config *nconf); 2510 int (*join_mesh)(struct wiphy *wiphy, struct net_device *dev, 2511 const struct mesh_config *conf, 2512 const struct mesh_setup *setup); 2513 int (*leave_mesh)(struct wiphy *wiphy, struct net_device *dev); 2514 2515 int (*join_ocb)(struct wiphy *wiphy, struct net_device *dev, 2516 struct ocb_setup *setup); 2517 int (*leave_ocb)(struct wiphy *wiphy, struct net_device *dev); 2518 2519 int (*change_bss)(struct wiphy *wiphy, struct net_device *dev, 2520 struct bss_parameters *params); 2521 2522 int (*set_txq_params)(struct wiphy *wiphy, struct net_device *dev, 2523 struct ieee80211_txq_params *params); 2524 2525 int (*libertas_set_mesh_channel)(struct wiphy *wiphy, 2526 struct net_device *dev, 2527 struct ieee80211_channel *chan); 2528 2529 int (*set_monitor_channel)(struct wiphy *wiphy, 2530 struct cfg80211_chan_def *chandef); 2531 2532 int (*scan)(struct wiphy *wiphy, 2533 struct cfg80211_scan_request *request); 2534 2535 int (*auth)(struct wiphy *wiphy, struct net_device *dev, 2536 struct cfg80211_auth_request *req); 2537 int (*assoc)(struct wiphy *wiphy, struct net_device *dev, 2538 struct cfg80211_assoc_request *req); 2539 int (*deauth)(struct wiphy *wiphy, struct net_device *dev, 2540 struct cfg80211_deauth_request *req); 2541 int (*disassoc)(struct wiphy *wiphy, struct net_device *dev, 2542 struct cfg80211_disassoc_request *req); 2543 2544 int (*connect)(struct wiphy *wiphy, struct net_device *dev, 2545 struct cfg80211_connect_params *sme); 2546 int (*disconnect)(struct wiphy *wiphy, struct net_device *dev, 2547 u16 reason_code); 2548 2549 int (*join_ibss)(struct wiphy *wiphy, struct net_device *dev, 2550 struct cfg80211_ibss_params *params); 2551 int (*leave_ibss)(struct wiphy *wiphy, struct net_device *dev); 2552 2553 int (*set_mcast_rate)(struct wiphy *wiphy, struct net_device *dev, 2554 int rate[IEEE80211_NUM_BANDS]); 2555 2556 int (*set_wiphy_params)(struct wiphy *wiphy, u32 changed); 2557 2558 int (*set_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2559 enum nl80211_tx_power_setting type, int mbm); 2560 int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev, 2561 int *dbm); 2562 2563 int (*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev, 2564 const u8 *addr); 2565 2566 void (*rfkill_poll)(struct wiphy *wiphy); 2567 2568 #ifdef CONFIG_NL80211_TESTMODE 2569 int (*testmode_cmd)(struct wiphy *wiphy, struct wireless_dev *wdev, 2570 void *data, int len); 2571 int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb, 2572 struct netlink_callback *cb, 2573 void *data, int len); 2574 #endif 2575 2576 int (*set_bitrate_mask)(struct wiphy *wiphy, 2577 struct net_device *dev, 2578 const u8 *peer, 2579 const struct cfg80211_bitrate_mask *mask); 2580 2581 int (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev, 2582 int idx, struct survey_info *info); 2583 2584 int (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2585 struct cfg80211_pmksa *pmksa); 2586 int (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev, 2587 struct cfg80211_pmksa *pmksa); 2588 int (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev); 2589 2590 int (*remain_on_channel)(struct wiphy *wiphy, 2591 struct wireless_dev *wdev, 2592 struct ieee80211_channel *chan, 2593 unsigned int duration, 2594 u64 *cookie); 2595 int (*cancel_remain_on_channel)(struct wiphy *wiphy, 2596 struct wireless_dev *wdev, 2597 u64 cookie); 2598 2599 int (*mgmt_tx)(struct wiphy *wiphy, struct wireless_dev *wdev, 2600 struct cfg80211_mgmt_tx_params *params, 2601 u64 *cookie); 2602 int (*mgmt_tx_cancel_wait)(struct wiphy *wiphy, 2603 struct wireless_dev *wdev, 2604 u64 cookie); 2605 2606 int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2607 bool enabled, int timeout); 2608 2609 int (*set_cqm_rssi_config)(struct wiphy *wiphy, 2610 struct net_device *dev, 2611 s32 rssi_thold, u32 rssi_hyst); 2612 2613 int (*set_cqm_txe_config)(struct wiphy *wiphy, 2614 struct net_device *dev, 2615 u32 rate, u32 pkts, u32 intvl); 2616 2617 void (*mgmt_frame_register)(struct wiphy *wiphy, 2618 struct wireless_dev *wdev, 2619 u16 frame_type, bool reg); 2620 2621 int (*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant); 2622 int (*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant); 2623 2624 int (*sched_scan_start)(struct wiphy *wiphy, 2625 struct net_device *dev, 2626 struct cfg80211_sched_scan_request *request); 2627 int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); 2628 2629 int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, 2630 struct cfg80211_gtk_rekey_data *data); 2631 2632 int (*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev, 2633 const u8 *peer, u8 action_code, u8 dialog_token, 2634 u16 status_code, u32 peer_capability, 2635 bool initiator, const u8 *buf, size_t len); 2636 int (*tdls_oper)(struct wiphy *wiphy, struct net_device *dev, 2637 const u8 *peer, enum nl80211_tdls_operation oper); 2638 2639 int (*probe_client)(struct wiphy *wiphy, struct net_device *dev, 2640 const u8 *peer, u64 *cookie); 2641 2642 int (*set_noack_map)(struct wiphy *wiphy, 2643 struct net_device *dev, 2644 u16 noack_map); 2645 2646 int (*get_channel)(struct wiphy *wiphy, 2647 struct wireless_dev *wdev, 2648 struct cfg80211_chan_def *chandef); 2649 2650 int (*start_p2p_device)(struct wiphy *wiphy, 2651 struct wireless_dev *wdev); 2652 void (*stop_p2p_device)(struct wiphy *wiphy, 2653 struct wireless_dev *wdev); 2654 2655 int (*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev, 2656 const struct cfg80211_acl_data *params); 2657 2658 int (*start_radar_detection)(struct wiphy *wiphy, 2659 struct net_device *dev, 2660 struct cfg80211_chan_def *chandef, 2661 u32 cac_time_ms); 2662 int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev, 2663 struct cfg80211_update_ft_ies_params *ftie); 2664 int (*crit_proto_start)(struct wiphy *wiphy, 2665 struct wireless_dev *wdev, 2666 enum nl80211_crit_proto_id protocol, 2667 u16 duration); 2668 void (*crit_proto_stop)(struct wiphy *wiphy, 2669 struct wireless_dev *wdev); 2670 int (*set_coalesce)(struct wiphy *wiphy, 2671 struct cfg80211_coalesce *coalesce); 2672 2673 int (*channel_switch)(struct wiphy *wiphy, 2674 struct net_device *dev, 2675 struct cfg80211_csa_settings *params); 2676 2677 int (*set_qos_map)(struct wiphy *wiphy, 2678 struct net_device *dev, 2679 struct cfg80211_qos_map *qos_map); 2680 2681 int (*set_ap_chanwidth)(struct wiphy *wiphy, struct net_device *dev, 2682 struct cfg80211_chan_def *chandef); 2683 2684 int (*add_tx_ts)(struct wiphy *wiphy, struct net_device *dev, 2685 u8 tsid, const u8 *peer, u8 user_prio, 2686 u16 admitted_time); 2687 int (*del_tx_ts)(struct wiphy *wiphy, struct net_device *dev, 2688 u8 tsid, const u8 *peer); 2689 2690 int (*tdls_channel_switch)(struct wiphy *wiphy, 2691 struct net_device *dev, 2692 const u8 *addr, u8 oper_class, 2693 struct cfg80211_chan_def *chandef); 2694 void (*tdls_cancel_channel_switch)(struct wiphy *wiphy, 2695 struct net_device *dev, 2696 const u8 *addr); 2697 }; 2698 2699 /* 2700 * wireless hardware and networking interfaces structures 2701 * and registration/helper functions 2702 */ 2703 2704 /** 2705 * enum wiphy_flags - wiphy capability flags 2706 * 2707 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this 2708 * wiphy at all 2709 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled 2710 * by default -- this flag will be set depending on the kernel's default 2711 * on wiphy_new(), but can be changed by the driver if it has a good 2712 * reason to override the default 2713 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station 2714 * on a VLAN interface) 2715 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station 2716 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the 2717 * control port protocol ethertype. The device also honours the 2718 * control_port_no_encrypt flag. 2719 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN. 2720 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing 2721 * auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH. 2722 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans. 2723 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the 2724 * firmware. 2725 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP. 2726 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation. 2727 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z) 2728 * link setup/discovery operations internally. Setup, discovery and 2729 * teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT 2730 * command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be 2731 * used for asking the driver/firmware to perform a TDLS operation. 2732 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME 2733 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes 2734 * when there are virtual interfaces in AP mode by calling 2735 * cfg80211_report_obss_beacon(). 2736 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device 2737 * responds to probe-requests in hardware. 2738 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX. 2739 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call. 2740 * @WIPHY_FLAG_SUPPORTS_5_10_MHZ: Device supports 5 MHz and 10 MHz channels. 2741 * @WIPHY_FLAG_HAS_CHANNEL_SWITCH: Device supports channel switch in 2742 * beaconing mode (AP, IBSS, Mesh, ...). 2743 */ 2744 enum wiphy_flags { 2745 /* use hole at 0 */ 2746 /* use hole at 1 */ 2747 /* use hole at 2 */ 2748 WIPHY_FLAG_NETNS_OK = BIT(3), 2749 WIPHY_FLAG_PS_ON_BY_DEFAULT = BIT(4), 2750 WIPHY_FLAG_4ADDR_AP = BIT(5), 2751 WIPHY_FLAG_4ADDR_STATION = BIT(6), 2752 WIPHY_FLAG_CONTROL_PORT_PROTOCOL = BIT(7), 2753 WIPHY_FLAG_IBSS_RSN = BIT(8), 2754 WIPHY_FLAG_MESH_AUTH = BIT(10), 2755 WIPHY_FLAG_SUPPORTS_SCHED_SCAN = BIT(11), 2756 /* use hole at 12 */ 2757 WIPHY_FLAG_SUPPORTS_FW_ROAM = BIT(13), 2758 WIPHY_FLAG_AP_UAPSD = BIT(14), 2759 WIPHY_FLAG_SUPPORTS_TDLS = BIT(15), 2760 WIPHY_FLAG_TDLS_EXTERNAL_SETUP = BIT(16), 2761 WIPHY_FLAG_HAVE_AP_SME = BIT(17), 2762 WIPHY_FLAG_REPORTS_OBSS = BIT(18), 2763 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD = BIT(19), 2764 WIPHY_FLAG_OFFCHAN_TX = BIT(20), 2765 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21), 2766 WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22), 2767 WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23), 2768 }; 2769 2770 /** 2771 * struct ieee80211_iface_limit - limit on certain interface types 2772 * @max: maximum number of interfaces of these types 2773 * @types: interface types (bits) 2774 */ 2775 struct ieee80211_iface_limit { 2776 u16 max; 2777 u16 types; 2778 }; 2779 2780 /** 2781 * struct ieee80211_iface_combination - possible interface combination 2782 * @limits: limits for the given interface types 2783 * @n_limits: number of limitations 2784 * @num_different_channels: can use up to this many different channels 2785 * @max_interfaces: maximum number of interfaces in total allowed in this 2786 * group 2787 * @beacon_int_infra_match: In this combination, the beacon intervals 2788 * between infrastructure and AP types must match. This is required 2789 * only in special cases. 2790 * @radar_detect_widths: bitmap of channel widths supported for radar detection 2791 * @radar_detect_regions: bitmap of regions supported for radar detection 2792 * 2793 * With this structure the driver can describe which interface 2794 * combinations it supports concurrently. 2795 * 2796 * Examples: 2797 * 2798 * 1. Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total: 2799 * 2800 * struct ieee80211_iface_limit limits1[] = { 2801 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2802 * { .max = 1, .types = BIT(NL80211_IFTYPE_AP}, }, 2803 * }; 2804 * struct ieee80211_iface_combination combination1 = { 2805 * .limits = limits1, 2806 * .n_limits = ARRAY_SIZE(limits1), 2807 * .max_interfaces = 2, 2808 * .beacon_int_infra_match = true, 2809 * }; 2810 * 2811 * 2812 * 2. Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total: 2813 * 2814 * struct ieee80211_iface_limit limits2[] = { 2815 * { .max = 8, .types = BIT(NL80211_IFTYPE_AP) | 2816 * BIT(NL80211_IFTYPE_P2P_GO), }, 2817 * }; 2818 * struct ieee80211_iface_combination combination2 = { 2819 * .limits = limits2, 2820 * .n_limits = ARRAY_SIZE(limits2), 2821 * .max_interfaces = 8, 2822 * .num_different_channels = 1, 2823 * }; 2824 * 2825 * 2826 * 3. Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total. 2827 * 2828 * This allows for an infrastructure connection and three P2P connections. 2829 * 2830 * struct ieee80211_iface_limit limits3[] = { 2831 * { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, 2832 * { .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) | 2833 * BIT(NL80211_IFTYPE_P2P_CLIENT), }, 2834 * }; 2835 * struct ieee80211_iface_combination combination3 = { 2836 * .limits = limits3, 2837 * .n_limits = ARRAY_SIZE(limits3), 2838 * .max_interfaces = 4, 2839 * .num_different_channels = 2, 2840 * }; 2841 */ 2842 struct ieee80211_iface_combination { 2843 const struct ieee80211_iface_limit *limits; 2844 u32 num_different_channels; 2845 u16 max_interfaces; 2846 u8 n_limits; 2847 bool beacon_int_infra_match; 2848 u8 radar_detect_widths; 2849 u8 radar_detect_regions; 2850 }; 2851 2852 struct ieee80211_txrx_stypes { 2853 u16 tx, rx; 2854 }; 2855 2856 /** 2857 * enum wiphy_wowlan_support_flags - WoWLAN support flags 2858 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any" 2859 * trigger that keeps the device operating as-is and 2860 * wakes up the host on any activity, for example a 2861 * received packet that passed filtering; note that the 2862 * packet should be preserved in that case 2863 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet 2864 * (see nl80211.h) 2865 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect 2866 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep 2867 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure 2868 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request 2869 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure 2870 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release 2871 * @WIPHY_WOWLAN_NET_DETECT: supports wakeup on network detection 2872 */ 2873 enum wiphy_wowlan_support_flags { 2874 WIPHY_WOWLAN_ANY = BIT(0), 2875 WIPHY_WOWLAN_MAGIC_PKT = BIT(1), 2876 WIPHY_WOWLAN_DISCONNECT = BIT(2), 2877 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3), 2878 WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4), 2879 WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5), 2880 WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6), 2881 WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7), 2882 WIPHY_WOWLAN_NET_DETECT = BIT(8), 2883 }; 2884 2885 struct wiphy_wowlan_tcp_support { 2886 const struct nl80211_wowlan_tcp_data_token_feature *tok; 2887 u32 data_payload_max; 2888 u32 data_interval_max; 2889 u32 wake_payload_max; 2890 bool seq; 2891 }; 2892 2893 /** 2894 * struct wiphy_wowlan_support - WoWLAN support data 2895 * @flags: see &enum wiphy_wowlan_support_flags 2896 * @n_patterns: number of supported wakeup patterns 2897 * (see nl80211.h for the pattern definition) 2898 * @pattern_max_len: maximum length of each pattern 2899 * @pattern_min_len: minimum length of each pattern 2900 * @max_pkt_offset: maximum Rx packet offset 2901 * @max_nd_match_sets: maximum number of matchsets for net-detect, 2902 * similar, but not necessarily identical, to max_match_sets for 2903 * scheduled scans. 2904 * See &struct cfg80211_sched_scan_request.@match_sets for more 2905 * details. 2906 * @tcp: TCP wakeup support information 2907 */ 2908 struct wiphy_wowlan_support { 2909 u32 flags; 2910 int n_patterns; 2911 int pattern_max_len; 2912 int pattern_min_len; 2913 int max_pkt_offset; 2914 int max_nd_match_sets; 2915 const struct wiphy_wowlan_tcp_support *tcp; 2916 }; 2917 2918 /** 2919 * struct wiphy_coalesce_support - coalesce support data 2920 * @n_rules: maximum number of coalesce rules 2921 * @max_delay: maximum supported coalescing delay in msecs 2922 * @n_patterns: number of supported patterns in a rule 2923 * (see nl80211.h for the pattern definition) 2924 * @pattern_max_len: maximum length of each pattern 2925 * @pattern_min_len: minimum length of each pattern 2926 * @max_pkt_offset: maximum Rx packet offset 2927 */ 2928 struct wiphy_coalesce_support { 2929 int n_rules; 2930 int max_delay; 2931 int n_patterns; 2932 int pattern_max_len; 2933 int pattern_min_len; 2934 int max_pkt_offset; 2935 }; 2936 2937 /** 2938 * enum wiphy_vendor_command_flags - validation flags for vendor commands 2939 * @WIPHY_VENDOR_CMD_NEED_WDEV: vendor command requires wdev 2940 * @WIPHY_VENDOR_CMD_NEED_NETDEV: vendor command requires netdev 2941 * @WIPHY_VENDOR_CMD_NEED_RUNNING: interface/wdev must be up & running 2942 * (must be combined with %_WDEV or %_NETDEV) 2943 */ 2944 enum wiphy_vendor_command_flags { 2945 WIPHY_VENDOR_CMD_NEED_WDEV = BIT(0), 2946 WIPHY_VENDOR_CMD_NEED_NETDEV = BIT(1), 2947 WIPHY_VENDOR_CMD_NEED_RUNNING = BIT(2), 2948 }; 2949 2950 /** 2951 * struct wiphy_vendor_command - vendor command definition 2952 * @info: vendor command identifying information, as used in nl80211 2953 * @flags: flags, see &enum wiphy_vendor_command_flags 2954 * @doit: callback for the operation, note that wdev is %NULL if the 2955 * flags didn't ask for a wdev and non-%NULL otherwise; the data 2956 * pointer may be %NULL if userspace provided no data at all 2957 */ 2958 struct wiphy_vendor_command { 2959 struct nl80211_vendor_cmd_info info; 2960 u32 flags; 2961 int (*doit)(struct wiphy *wiphy, struct wireless_dev *wdev, 2962 const void *data, int data_len); 2963 }; 2964 2965 /** 2966 * struct wiphy - wireless hardware description 2967 * @reg_notifier: the driver's regulatory notification callback, 2968 * note that if your driver uses wiphy_apply_custom_regulatory() 2969 * the reg_notifier's request can be passed as NULL 2970 * @regd: the driver's regulatory domain, if one was requested via 2971 * the regulatory_hint() API. This can be used by the driver 2972 * on the reg_notifier() if it chooses to ignore future 2973 * regulatory domain changes caused by other drivers. 2974 * @signal_type: signal type reported in &struct cfg80211_bss. 2975 * @cipher_suites: supported cipher suites 2976 * @n_cipher_suites: number of supported cipher suites 2977 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit) 2978 * @retry_long: Retry limit for long frames (dot11LongRetryLimit) 2979 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold); 2980 * -1 = fragmentation disabled, only odd values >= 256 used 2981 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled 2982 * @_net: the network namespace this wiphy currently lives in 2983 * @perm_addr: permanent MAC address of this device 2984 * @addr_mask: If the device supports multiple MAC addresses by masking, 2985 * set this to a mask with variable bits set to 1, e.g. if the last 2986 * four bits are variable then set it to 00-00-00-00-00-0f. The actual 2987 * variable bits shall be determined by the interfaces added, with 2988 * interfaces not matching the mask being rejected to be brought up. 2989 * @n_addresses: number of addresses in @addresses. 2990 * @addresses: If the device has more than one address, set this pointer 2991 * to a list of addresses (6 bytes each). The first one will be used 2992 * by default for perm_addr. In this case, the mask should be set to 2993 * all-zeroes. In this case it is assumed that the device can handle 2994 * the same number of arbitrary MAC addresses. 2995 * @registered: protects ->resume and ->suspend sysfs callbacks against 2996 * unregister hardware 2997 * @debugfsdir: debugfs directory used for this wiphy, will be renamed 2998 * automatically on wiphy renames 2999 * @dev: (virtual) struct device for this wiphy 3000 * @registered: helps synchronize suspend/resume with wiphy unregister 3001 * @wext: wireless extension handlers 3002 * @priv: driver private data (sized according to wiphy_new() parameter) 3003 * @interface_modes: bitmask of interfaces types valid for this wiphy, 3004 * must be set by driver 3005 * @iface_combinations: Valid interface combinations array, should not 3006 * list single interface types. 3007 * @n_iface_combinations: number of entries in @iface_combinations array. 3008 * @software_iftypes: bitmask of software interface types, these are not 3009 * subject to any restrictions since they are purely managed in SW. 3010 * @flags: wiphy flags, see &enum wiphy_flags 3011 * @regulatory_flags: wiphy regulatory flags, see 3012 * &enum ieee80211_regulatory_flags 3013 * @features: features advertised to nl80211, see &enum nl80211_feature_flags. 3014 * @bss_priv_size: each BSS struct has private data allocated with it, 3015 * this variable determines its size 3016 * @max_scan_ssids: maximum number of SSIDs the device can scan for in 3017 * any given scan 3018 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan 3019 * for in any given scheduled scan 3020 * @max_match_sets: maximum number of match sets the device can handle 3021 * when performing a scheduled scan, 0 if filtering is not 3022 * supported. 3023 * @max_scan_ie_len: maximum length of user-controlled IEs device can 3024 * add to probe request frames transmitted during a scan, must not 3025 * include fixed IEs like supported rates 3026 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled 3027 * scans 3028 * @coverage_class: current coverage class 3029 * @fw_version: firmware version for ethtool reporting 3030 * @hw_version: hardware version for ethtool reporting 3031 * @max_num_pmkids: maximum number of PMKIDs supported by device 3032 * @privid: a pointer that drivers can use to identify if an arbitrary 3033 * wiphy is theirs, e.g. in global notifiers 3034 * @bands: information about bands/channels supported by this device 3035 * 3036 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or 3037 * transmitted through nl80211, points to an array indexed by interface 3038 * type 3039 * 3040 * @available_antennas_tx: bitmap of antennas which are available to be 3041 * configured as TX antennas. Antenna configuration commands will be 3042 * rejected unless this or @available_antennas_rx is set. 3043 * 3044 * @available_antennas_rx: bitmap of antennas which are available to be 3045 * configured as RX antennas. Antenna configuration commands will be 3046 * rejected unless this or @available_antennas_tx is set. 3047 * 3048 * @probe_resp_offload: 3049 * Bitmap of supported protocols for probe response offloading. 3050 * See &enum nl80211_probe_resp_offload_support_attr. Only valid 3051 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 3052 * 3053 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation 3054 * may request, if implemented. 3055 * 3056 * @wowlan: WoWLAN support information 3057 * @wowlan_config: current WoWLAN configuration; this should usually not be 3058 * used since access to it is necessarily racy, use the parameter passed 3059 * to the suspend() operation instead. 3060 * 3061 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. 3062 * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. 3063 * If null, then none can be over-ridden. 3064 * @vht_capa_mod_mask: Specify what VHT capabilities can be over-ridden. 3065 * If null, then none can be over-ridden. 3066 * 3067 * @max_acl_mac_addrs: Maximum number of MAC addresses that the device 3068 * supports for ACL. 3069 * 3070 * @extended_capabilities: extended capabilities supported by the driver, 3071 * additional capabilities might be supported by userspace; these are 3072 * the 802.11 extended capabilities ("Extended Capabilities element") 3073 * and are in the same format as in the information element. See 3074 * 802.11-2012 8.4.2.29 for the defined fields. 3075 * @extended_capabilities_mask: mask of the valid values 3076 * @extended_capabilities_len: length of the extended capabilities 3077 * @coalesce: packet coalescing support information 3078 * 3079 * @vendor_commands: array of vendor commands supported by the hardware 3080 * @n_vendor_commands: number of vendor commands 3081 * @vendor_events: array of vendor events supported by the hardware 3082 * @n_vendor_events: number of vendor events 3083 * 3084 * @max_ap_assoc_sta: maximum number of associated stations supported in AP mode 3085 * (including P2P GO) or 0 to indicate no such limit is advertised. The 3086 * driver is allowed to advertise a theoretical limit that it can reach in 3087 * some cases, but may not always reach. 3088 * 3089 * @max_num_csa_counters: Number of supported csa_counters in beacons 3090 * and probe responses. This value should be set if the driver 3091 * wishes to limit the number of csa counters. Default (0) means 3092 * infinite. 3093 * @max_adj_channel_rssi_comp: max offset of between the channel on which the 3094 * frame was sent and the channel on which the frame was heard for which 3095 * the reported rssi is still valid. If a driver is able to compensate the 3096 * low rssi when a frame is heard on different channel, then it should set 3097 * this variable to the maximal offset for which it can compensate. 3098 * This value should be set in MHz. 3099 */ 3100 struct wiphy { 3101 /* assign these fields before you register the wiphy */ 3102 3103 /* permanent MAC address(es) */ 3104 u8 perm_addr[ETH_ALEN]; 3105 u8 addr_mask[ETH_ALEN]; 3106 3107 struct mac_address *addresses; 3108 3109 const struct ieee80211_txrx_stypes *mgmt_stypes; 3110 3111 const struct ieee80211_iface_combination *iface_combinations; 3112 int n_iface_combinations; 3113 u16 software_iftypes; 3114 3115 u16 n_addresses; 3116 3117 /* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */ 3118 u16 interface_modes; 3119 3120 u16 max_acl_mac_addrs; 3121 3122 u32 flags, regulatory_flags, features; 3123 3124 u32 ap_sme_capa; 3125 3126 enum cfg80211_signal_type signal_type; 3127 3128 int bss_priv_size; 3129 u8 max_scan_ssids; 3130 u8 max_sched_scan_ssids; 3131 u8 max_match_sets; 3132 u16 max_scan_ie_len; 3133 u16 max_sched_scan_ie_len; 3134 3135 int n_cipher_suites; 3136 const u32 *cipher_suites; 3137 3138 u8 retry_short; 3139 u8 retry_long; 3140 u32 frag_threshold; 3141 u32 rts_threshold; 3142 u8 coverage_class; 3143 3144 char fw_version[ETHTOOL_FWVERS_LEN]; 3145 u32 hw_version; 3146 3147 #ifdef CONFIG_PM 3148 const struct wiphy_wowlan_support *wowlan; 3149 struct cfg80211_wowlan *wowlan_config; 3150 #endif 3151 3152 u16 max_remain_on_channel_duration; 3153 3154 u8 max_num_pmkids; 3155 3156 u32 available_antennas_tx; 3157 u32 available_antennas_rx; 3158 3159 /* 3160 * Bitmap of supported protocols for probe response offloading 3161 * see &enum nl80211_probe_resp_offload_support_attr. Only valid 3162 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set. 3163 */ 3164 u32 probe_resp_offload; 3165 3166 const u8 *extended_capabilities, *extended_capabilities_mask; 3167 u8 extended_capabilities_len; 3168 3169 /* If multiple wiphys are registered and you're handed e.g. 3170 * a regular netdev with assigned ieee80211_ptr, you won't 3171 * know whether it points to a wiphy your driver has registered 3172 * or not. Assign this to something global to your driver to 3173 * help determine whether you own this wiphy or not. */ 3174 const void *privid; 3175 3176 struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; 3177 3178 /* Lets us get back the wiphy on the callback */ 3179 void (*reg_notifier)(struct wiphy *wiphy, 3180 struct regulatory_request *request); 3181 3182 /* fields below are read-only, assigned by cfg80211 */ 3183 3184 const struct ieee80211_regdomain __rcu *regd; 3185 3186 /* the item in /sys/class/ieee80211/ points to this, 3187 * you need use set_wiphy_dev() (see below) */ 3188 struct device dev; 3189 3190 /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ 3191 bool registered; 3192 3193 /* dir in debugfs: ieee80211/<wiphyname> */ 3194 struct dentry *debugfsdir; 3195 3196 const struct ieee80211_ht_cap *ht_capa_mod_mask; 3197 const struct ieee80211_vht_cap *vht_capa_mod_mask; 3198 3199 #ifdef CONFIG_NET_NS 3200 /* the network namespace this phy lives in currently */ 3201 struct net *_net; 3202 #endif 3203 3204 #ifdef CONFIG_CFG80211_WEXT 3205 const struct iw_handler_def *wext; 3206 #endif 3207 3208 const struct wiphy_coalesce_support *coalesce; 3209 3210 const struct wiphy_vendor_command *vendor_commands; 3211 const struct nl80211_vendor_cmd_info *vendor_events; 3212 int n_vendor_commands, n_vendor_events; 3213 3214 u16 max_ap_assoc_sta; 3215 3216 u8 max_num_csa_counters; 3217 u8 max_adj_channel_rssi_comp; 3218 3219 char priv[0] __aligned(NETDEV_ALIGN); 3220 }; 3221 3222 static inline struct net *wiphy_net(struct wiphy *wiphy) 3223 { 3224 return read_pnet(&wiphy->_net); 3225 } 3226 3227 static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net) 3228 { 3229 write_pnet(&wiphy->_net, net); 3230 } 3231 3232 /** 3233 * wiphy_priv - return priv from wiphy 3234 * 3235 * @wiphy: the wiphy whose priv pointer to return 3236 * Return: The priv of @wiphy. 3237 */ 3238 static inline void *wiphy_priv(struct wiphy *wiphy) 3239 { 3240 BUG_ON(!wiphy); 3241 return &wiphy->priv; 3242 } 3243 3244 /** 3245 * priv_to_wiphy - return the wiphy containing the priv 3246 * 3247 * @priv: a pointer previously returned by wiphy_priv 3248 * Return: The wiphy of @priv. 3249 */ 3250 static inline struct wiphy *priv_to_wiphy(void *priv) 3251 { 3252 BUG_ON(!priv); 3253 return container_of(priv, struct wiphy, priv); 3254 } 3255 3256 /** 3257 * set_wiphy_dev - set device pointer for wiphy 3258 * 3259 * @wiphy: The wiphy whose device to bind 3260 * @dev: The device to parent it to 3261 */ 3262 static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) 3263 { 3264 wiphy->dev.parent = dev; 3265 } 3266 3267 /** 3268 * wiphy_dev - get wiphy dev pointer 3269 * 3270 * @wiphy: The wiphy whose device struct to look up 3271 * Return: The dev of @wiphy. 3272 */ 3273 static inline struct device *wiphy_dev(struct wiphy *wiphy) 3274 { 3275 return wiphy->dev.parent; 3276 } 3277 3278 /** 3279 * wiphy_name - get wiphy name 3280 * 3281 * @wiphy: The wiphy whose name to return 3282 * Return: The name of @wiphy. 3283 */ 3284 static inline const char *wiphy_name(const struct wiphy *wiphy) 3285 { 3286 return dev_name(&wiphy->dev); 3287 } 3288 3289 /** 3290 * wiphy_new_nm - create a new wiphy for use with cfg80211 3291 * 3292 * @ops: The configuration operations for this device 3293 * @sizeof_priv: The size of the private area to allocate 3294 * @requested_name: Request a particular name. 3295 * NULL is valid value, and means use the default phy%d naming. 3296 * 3297 * Create a new wiphy and associate the given operations with it. 3298 * @sizeof_priv bytes are allocated for private use. 3299 * 3300 * Return: A pointer to the new wiphy. This pointer must be 3301 * assigned to each netdev's ieee80211_ptr for proper operation. 3302 */ 3303 struct wiphy *wiphy_new_nm(const struct cfg80211_ops *ops, int sizeof_priv, 3304 const char *requested_name); 3305 3306 /** 3307 * wiphy_new - create a new wiphy for use with cfg80211 3308 * 3309 * @ops: The configuration operations for this device 3310 * @sizeof_priv: The size of the private area to allocate 3311 * 3312 * Create a new wiphy and associate the given operations with it. 3313 * @sizeof_priv bytes are allocated for private use. 3314 * 3315 * Return: A pointer to the new wiphy. This pointer must be 3316 * assigned to each netdev's ieee80211_ptr for proper operation. 3317 */ 3318 static inline struct wiphy *wiphy_new(const struct cfg80211_ops *ops, 3319 int sizeof_priv) 3320 { 3321 return wiphy_new_nm(ops, sizeof_priv, NULL); 3322 } 3323 3324 /** 3325 * wiphy_register - register a wiphy with cfg80211 3326 * 3327 * @wiphy: The wiphy to register. 3328 * 3329 * Return: A non-negative wiphy index or a negative error code. 3330 */ 3331 int wiphy_register(struct wiphy *wiphy); 3332 3333 /** 3334 * wiphy_unregister - deregister a wiphy from cfg80211 3335 * 3336 * @wiphy: The wiphy to unregister. 3337 * 3338 * After this call, no more requests can be made with this priv 3339 * pointer, but the call may sleep to wait for an outstanding 3340 * request that is being handled. 3341 */ 3342 void wiphy_unregister(struct wiphy *wiphy); 3343 3344 /** 3345 * wiphy_free - free wiphy 3346 * 3347 * @wiphy: The wiphy to free 3348 */ 3349 void wiphy_free(struct wiphy *wiphy); 3350 3351 /* internal structs */ 3352 struct cfg80211_conn; 3353 struct cfg80211_internal_bss; 3354 struct cfg80211_cached_keys; 3355 3356 /** 3357 * struct wireless_dev - wireless device state 3358 * 3359 * For netdevs, this structure must be allocated by the driver 3360 * that uses the ieee80211_ptr field in struct net_device (this 3361 * is intentional so it can be allocated along with the netdev.) 3362 * It need not be registered then as netdev registration will 3363 * be intercepted by cfg80211 to see the new wireless device. 3364 * 3365 * For non-netdev uses, it must also be allocated by the driver 3366 * in response to the cfg80211 callbacks that require it, as 3367 * there's no netdev registration in that case it may not be 3368 * allocated outside of callback operations that return it. 3369 * 3370 * @wiphy: pointer to hardware description 3371 * @iftype: interface type 3372 * @list: (private) Used to collect the interfaces 3373 * @netdev: (private) Used to reference back to the netdev, may be %NULL 3374 * @identifier: (private) Identifier used in nl80211 to identify this 3375 * wireless device if it has no netdev 3376 * @current_bss: (private) Used by the internal configuration code 3377 * @chandef: (private) Used by the internal configuration code to track 3378 * the user-set channel definition. 3379 * @preset_chandef: (private) Used by the internal configuration code to 3380 * track the channel to be used for AP later 3381 * @bssid: (private) Used by the internal configuration code 3382 * @ssid: (private) Used by the internal configuration code 3383 * @ssid_len: (private) Used by the internal configuration code 3384 * @mesh_id_len: (private) Used by the internal configuration code 3385 * @mesh_id_up_len: (private) Used by the internal configuration code 3386 * @wext: (private) Used by the internal wireless extensions compat code 3387 * @use_4addr: indicates 4addr mode is used on this interface, must be 3388 * set by driver (if supported) on add_interface BEFORE registering the 3389 * netdev and may otherwise be used by driver read-only, will be update 3390 * by cfg80211 on change_interface 3391 * @mgmt_registrations: list of registrations for management frames 3392 * @mgmt_registrations_lock: lock for the list 3393 * @mtx: mutex used to lock data in this struct, may be used by drivers 3394 * and some API functions require it held 3395 * @beacon_interval: beacon interval used on this device for transmitting 3396 * beacons, 0 when not valid 3397 * @address: The address for this device, valid only if @netdev is %NULL 3398 * @p2p_started: true if this is a P2P Device that has been started 3399 * @cac_started: true if DFS channel availability check has been started 3400 * @cac_start_time: timestamp (jiffies) when the dfs state was entered. 3401 * @cac_time_ms: CAC time in ms 3402 * @ps: powersave mode is enabled 3403 * @ps_timeout: dynamic powersave timeout 3404 * @ap_unexpected_nlportid: (private) netlink port ID of application 3405 * registered for unexpected class 3 frames (AP mode) 3406 * @conn: (private) cfg80211 software SME connection state machine data 3407 * @connect_keys: (private) keys to set after connection is established 3408 * @ibss_fixed: (private) IBSS is using fixed BSSID 3409 * @ibss_dfs_possible: (private) IBSS may change to a DFS channel 3410 * @event_list: (private) list for internal event processing 3411 * @event_lock: (private) lock for event list 3412 * @owner_nlportid: (private) owner socket port ID 3413 */ 3414 struct wireless_dev { 3415 struct wiphy *wiphy; 3416 enum nl80211_iftype iftype; 3417 3418 /* the remainder of this struct should be private to cfg80211 */ 3419 struct list_head list; 3420 struct net_device *netdev; 3421 3422 u32 identifier; 3423 3424 struct list_head mgmt_registrations; 3425 spinlock_t mgmt_registrations_lock; 3426 3427 struct mutex mtx; 3428 3429 bool use_4addr, p2p_started; 3430 3431 u8 address[ETH_ALEN] __aligned(sizeof(u16)); 3432 3433 /* currently used for IBSS and SME - might be rearranged later */ 3434 u8 ssid[IEEE80211_MAX_SSID_LEN]; 3435 u8 ssid_len, mesh_id_len, mesh_id_up_len; 3436 struct cfg80211_conn *conn; 3437 struct cfg80211_cached_keys *connect_keys; 3438 3439 struct list_head event_list; 3440 spinlock_t event_lock; 3441 3442 struct cfg80211_internal_bss *current_bss; /* associated / joined */ 3443 struct cfg80211_chan_def preset_chandef; 3444 struct cfg80211_chan_def chandef; 3445 3446 bool ibss_fixed; 3447 bool ibss_dfs_possible; 3448 3449 bool ps; 3450 int ps_timeout; 3451 3452 int beacon_interval; 3453 3454 u32 ap_unexpected_nlportid; 3455 3456 bool cac_started; 3457 unsigned long cac_start_time; 3458 unsigned int cac_time_ms; 3459 3460 u32 owner_nlportid; 3461 3462 #ifdef CONFIG_CFG80211_WEXT 3463 /* wext data */ 3464 struct { 3465 struct cfg80211_ibss_params ibss; 3466 struct cfg80211_connect_params connect; 3467 struct cfg80211_cached_keys *keys; 3468 const u8 *ie; 3469 size_t ie_len; 3470 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 3471 u8 ssid[IEEE80211_MAX_SSID_LEN]; 3472 s8 default_key, default_mgmt_key; 3473 bool prev_bssid_valid; 3474 } wext; 3475 #endif 3476 }; 3477 3478 static inline u8 *wdev_address(struct wireless_dev *wdev) 3479 { 3480 if (wdev->netdev) 3481 return wdev->netdev->dev_addr; 3482 return wdev->address; 3483 } 3484 3485 /** 3486 * wdev_priv - return wiphy priv from wireless_dev 3487 * 3488 * @wdev: The wireless device whose wiphy's priv pointer to return 3489 * Return: The wiphy priv of @wdev. 3490 */ 3491 static inline void *wdev_priv(struct wireless_dev *wdev) 3492 { 3493 BUG_ON(!wdev); 3494 return wiphy_priv(wdev->wiphy); 3495 } 3496 3497 /** 3498 * DOC: Utility functions 3499 * 3500 * cfg80211 offers a number of utility functions that can be useful. 3501 */ 3502 3503 /** 3504 * ieee80211_channel_to_frequency - convert channel number to frequency 3505 * @chan: channel number 3506 * @band: band, necessary due to channel number overlap 3507 * Return: The corresponding frequency (in MHz), or 0 if the conversion failed. 3508 */ 3509 int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band); 3510 3511 /** 3512 * ieee80211_frequency_to_channel - convert frequency to channel number 3513 * @freq: center frequency 3514 * Return: The corresponding channel, or 0 if the conversion failed. 3515 */ 3516 int ieee80211_frequency_to_channel(int freq); 3517 3518 /* 3519 * Name indirection necessary because the ieee80211 code also has 3520 * a function named "ieee80211_get_channel", so if you include 3521 * cfg80211's header file you get cfg80211's version, if you try 3522 * to include both header files you'll (rightfully!) get a symbol 3523 * clash. 3524 */ 3525 struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy, 3526 int freq); 3527 /** 3528 * ieee80211_get_channel - get channel struct from wiphy for specified frequency 3529 * @wiphy: the struct wiphy to get the channel for 3530 * @freq: the center frequency of the channel 3531 * Return: The channel struct from @wiphy at @freq. 3532 */ 3533 static inline struct ieee80211_channel * 3534 ieee80211_get_channel(struct wiphy *wiphy, int freq) 3535 { 3536 return __ieee80211_get_channel(wiphy, freq); 3537 } 3538 3539 /** 3540 * ieee80211_get_response_rate - get basic rate for a given rate 3541 * 3542 * @sband: the band to look for rates in 3543 * @basic_rates: bitmap of basic rates 3544 * @bitrate: the bitrate for which to find the basic rate 3545 * 3546 * Return: The basic rate corresponding to a given bitrate, that 3547 * is the next lower bitrate contained in the basic rate map, 3548 * which is, for this function, given as a bitmap of indices of 3549 * rates in the band's bitrate table. 3550 */ 3551 struct ieee80211_rate * 3552 ieee80211_get_response_rate(struct ieee80211_supported_band *sband, 3553 u32 basic_rates, int bitrate); 3554 3555 /** 3556 * ieee80211_mandatory_rates - get mandatory rates for a given band 3557 * @sband: the band to look for rates in 3558 * @scan_width: width of the control channel 3559 * 3560 * This function returns a bitmap of the mandatory rates for the given 3561 * band, bits are set according to the rate position in the bitrates array. 3562 */ 3563 u32 ieee80211_mandatory_rates(struct ieee80211_supported_band *sband, 3564 enum nl80211_bss_scan_width scan_width); 3565 3566 /* 3567 * Radiotap parsing functions -- for controlled injection support 3568 * 3569 * Implemented in net/wireless/radiotap.c 3570 * Documentation in Documentation/networking/radiotap-headers.txt 3571 */ 3572 3573 struct radiotap_align_size { 3574 uint8_t align:4, size:4; 3575 }; 3576 3577 struct ieee80211_radiotap_namespace { 3578 const struct radiotap_align_size *align_size; 3579 int n_bits; 3580 uint32_t oui; 3581 uint8_t subns; 3582 }; 3583 3584 struct ieee80211_radiotap_vendor_namespaces { 3585 const struct ieee80211_radiotap_namespace *ns; 3586 int n_ns; 3587 }; 3588 3589 /** 3590 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args 3591 * @this_arg_index: index of current arg, valid after each successful call 3592 * to ieee80211_radiotap_iterator_next() 3593 * @this_arg: pointer to current radiotap arg; it is valid after each 3594 * call to ieee80211_radiotap_iterator_next() but also after 3595 * ieee80211_radiotap_iterator_init() where it will point to 3596 * the beginning of the actual data portion 3597 * @this_arg_size: length of the current arg, for convenience 3598 * @current_namespace: pointer to the current namespace definition 3599 * (or internally %NULL if the current namespace is unknown) 3600 * @is_radiotap_ns: indicates whether the current namespace is the default 3601 * radiotap namespace or not 3602 * 3603 * @_rtheader: pointer to the radiotap header we are walking through 3604 * @_max_length: length of radiotap header in cpu byte ordering 3605 * @_arg_index: next argument index 3606 * @_arg: next argument pointer 3607 * @_next_bitmap: internal pointer to next present u32 3608 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present 3609 * @_vns: vendor namespace definitions 3610 * @_next_ns_data: beginning of the next namespace's data 3611 * @_reset_on_ext: internal; reset the arg index to 0 when going to the 3612 * next bitmap word 3613 * 3614 * Describes the radiotap parser state. Fields prefixed with an underscore 3615 * must not be used by users of the parser, only by the parser internally. 3616 */ 3617 3618 struct ieee80211_radiotap_iterator { 3619 struct ieee80211_radiotap_header *_rtheader; 3620 const struct ieee80211_radiotap_vendor_namespaces *_vns; 3621 const struct ieee80211_radiotap_namespace *current_namespace; 3622 3623 unsigned char *_arg, *_next_ns_data; 3624 __le32 *_next_bitmap; 3625 3626 unsigned char *this_arg; 3627 int this_arg_index; 3628 int this_arg_size; 3629 3630 int is_radiotap_ns; 3631 3632 int _max_length; 3633 int _arg_index; 3634 uint32_t _bitmap_shifter; 3635 int _reset_on_ext; 3636 }; 3637 3638 int 3639 ieee80211_radiotap_iterator_init(struct ieee80211_radiotap_iterator *iterator, 3640 struct ieee80211_radiotap_header *radiotap_header, 3641 int max_length, 3642 const struct ieee80211_radiotap_vendor_namespaces *vns); 3643 3644 int 3645 ieee80211_radiotap_iterator_next(struct ieee80211_radiotap_iterator *iterator); 3646 3647 3648 extern const unsigned char rfc1042_header[6]; 3649 extern const unsigned char bridge_tunnel_header[6]; 3650 3651 /** 3652 * ieee80211_get_hdrlen_from_skb - get header length from data 3653 * 3654 * @skb: the frame 3655 * 3656 * Given an skb with a raw 802.11 header at the data pointer this function 3657 * returns the 802.11 header length. 3658 * 3659 * Return: The 802.11 header length in bytes (not including encryption 3660 * headers). Or 0 if the data in the sk_buff is too short to contain a valid 3661 * 802.11 header. 3662 */ 3663 unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); 3664 3665 /** 3666 * ieee80211_hdrlen - get header length in bytes from frame control 3667 * @fc: frame control field in little-endian format 3668 * Return: The header length in bytes. 3669 */ 3670 unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc); 3671 3672 /** 3673 * ieee80211_get_mesh_hdrlen - get mesh extension header length 3674 * @meshhdr: the mesh extension header, only the flags field 3675 * (first byte) will be accessed 3676 * Return: The length of the extension header, which is always at 3677 * least 6 bytes and at most 18 if address 5 and 6 are present. 3678 */ 3679 unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr); 3680 3681 /** 3682 * DOC: Data path helpers 3683 * 3684 * In addition to generic utilities, cfg80211 also offers 3685 * functions that help implement the data path for devices 3686 * that do not do the 802.11/802.3 conversion on the device. 3687 */ 3688 3689 /** 3690 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3 3691 * @skb: the 802.11 data frame 3692 * @addr: the device MAC address 3693 * @iftype: the virtual interface type 3694 * Return: 0 on success. Non-zero on error. 3695 */ 3696 int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, 3697 enum nl80211_iftype iftype); 3698 3699 /** 3700 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 3701 * @skb: the 802.3 frame 3702 * @addr: the device MAC address 3703 * @iftype: the virtual interface type 3704 * @bssid: the network bssid (used only for iftype STATION and ADHOC) 3705 * @qos: build 802.11 QoS data frame 3706 * Return: 0 on success, or a negative error code. 3707 */ 3708 int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, 3709 enum nl80211_iftype iftype, const u8 *bssid, 3710 bool qos); 3711 3712 /** 3713 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame 3714 * 3715 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of 3716 * 802.3 frames. The @list will be empty if the decode fails. The 3717 * @skb is consumed after the function returns. 3718 * 3719 * @skb: The input IEEE 802.11n A-MSDU frame. 3720 * @list: The output list of 802.3 frames. It must be allocated and 3721 * initialized by by the caller. 3722 * @addr: The device MAC address. 3723 * @iftype: The device interface type. 3724 * @extra_headroom: The hardware extra headroom for SKBs in the @list. 3725 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header. 3726 */ 3727 void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list, 3728 const u8 *addr, enum nl80211_iftype iftype, 3729 const unsigned int extra_headroom, 3730 bool has_80211_header); 3731 3732 /** 3733 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame 3734 * @skb: the data frame 3735 * @qos_map: Interworking QoS mapping or %NULL if not in use 3736 * Return: The 802.1p/1d tag. 3737 */ 3738 unsigned int cfg80211_classify8021d(struct sk_buff *skb, 3739 struct cfg80211_qos_map *qos_map); 3740 3741 /** 3742 * cfg80211_find_ie - find information element in data 3743 * 3744 * @eid: element ID 3745 * @ies: data consisting of IEs 3746 * @len: length of data 3747 * 3748 * Return: %NULL if the element ID could not be found or if 3749 * the element is invalid (claims to be longer than the given 3750 * data), or a pointer to the first byte of the requested 3751 * element, that is the byte containing the element ID. 3752 * 3753 * Note: There are no checks on the element length other than 3754 * having to fit into the given data. 3755 */ 3756 const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len); 3757 3758 /** 3759 * cfg80211_find_vendor_ie - find vendor specific information element in data 3760 * 3761 * @oui: vendor OUI 3762 * @oui_type: vendor-specific OUI type 3763 * @ies: data consisting of IEs 3764 * @len: length of data 3765 * 3766 * Return: %NULL if the vendor specific element ID could not be found or if the 3767 * element is invalid (claims to be longer than the given data), or a pointer to 3768 * the first byte of the requested element, that is the byte containing the 3769 * element ID. 3770 * 3771 * Note: There are no checks on the element length other than having to fit into 3772 * the given data. 3773 */ 3774 const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type, 3775 const u8 *ies, int len); 3776 3777 /** 3778 * DOC: Regulatory enforcement infrastructure 3779 * 3780 * TODO 3781 */ 3782 3783 /** 3784 * regulatory_hint - driver hint to the wireless core a regulatory domain 3785 * @wiphy: the wireless device giving the hint (used only for reporting 3786 * conflicts) 3787 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain 3788 * should be in. If @rd is set this should be NULL. Note that if you 3789 * set this to NULL you should still set rd->alpha2 to some accepted 3790 * alpha2. 3791 * 3792 * Wireless drivers can use this function to hint to the wireless core 3793 * what it believes should be the current regulatory domain by 3794 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory 3795 * domain should be in or by providing a completely build regulatory domain. 3796 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried 3797 * for a regulatory domain structure for the respective country. 3798 * 3799 * The wiphy must have been registered to cfg80211 prior to this call. 3800 * For cfg80211 drivers this means you must first use wiphy_register(), 3801 * for mac80211 drivers you must first use ieee80211_register_hw(). 3802 * 3803 * Drivers should check the return value, its possible you can get 3804 * an -ENOMEM. 3805 * 3806 * Return: 0 on success. -ENOMEM. 3807 */ 3808 int regulatory_hint(struct wiphy *wiphy, const char *alpha2); 3809 3810 /** 3811 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain 3812 * @wiphy: the wireless device we want to process the regulatory domain on 3813 * @regd: the custom regulatory domain to use for this wiphy 3814 * 3815 * Drivers can sometimes have custom regulatory domains which do not apply 3816 * to a specific country. Drivers can use this to apply such custom regulatory 3817 * domains. This routine must be called prior to wiphy registration. The 3818 * custom regulatory domain will be trusted completely and as such previous 3819 * default channel settings will be disregarded. If no rule is found for a 3820 * channel on the regulatory domain the channel will be disabled. 3821 * Drivers using this for a wiphy should also set the wiphy flag 3822 * REGULATORY_CUSTOM_REG or cfg80211 will set it for the wiphy 3823 * that called this helper. 3824 */ 3825 void wiphy_apply_custom_regulatory(struct wiphy *wiphy, 3826 const struct ieee80211_regdomain *regd); 3827 3828 /** 3829 * freq_reg_info - get regulatory information for the given frequency 3830 * @wiphy: the wiphy for which we want to process this rule for 3831 * @center_freq: Frequency in KHz for which we want regulatory information for 3832 * 3833 * Use this function to get the regulatory rule for a specific frequency on 3834 * a given wireless device. If the device has a specific regulatory domain 3835 * it wants to follow we respect that unless a country IE has been received 3836 * and processed already. 3837 * 3838 * Return: A valid pointer, or, when an error occurs, for example if no rule 3839 * can be found, the return value is encoded using ERR_PTR(). Use IS_ERR() to 3840 * check and PTR_ERR() to obtain the numeric return value. The numeric return 3841 * value will be -ERANGE if we determine the given center_freq does not even 3842 * have a regulatory rule for a frequency range in the center_freq's band. 3843 * See freq_in_rule_band() for our current definition of a band -- this is 3844 * purely subjective and right now it's 802.11 specific. 3845 */ 3846 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy, 3847 u32 center_freq); 3848 3849 /** 3850 * reg_initiator_name - map regulatory request initiator enum to name 3851 * @initiator: the regulatory request initiator 3852 * 3853 * You can use this to map the regulatory request initiator enum to a 3854 * proper string representation. 3855 */ 3856 const char *reg_initiator_name(enum nl80211_reg_initiator initiator); 3857 3858 /* 3859 * callbacks for asynchronous cfg80211 methods, notification 3860 * functions and BSS handling helpers 3861 */ 3862 3863 /** 3864 * cfg80211_scan_done - notify that scan finished 3865 * 3866 * @request: the corresponding scan request 3867 * @aborted: set to true if the scan was aborted for any reason, 3868 * userspace will be notified of that 3869 */ 3870 void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted); 3871 3872 /** 3873 * cfg80211_sched_scan_results - notify that new scan results are available 3874 * 3875 * @wiphy: the wiphy which got scheduled scan results 3876 */ 3877 void cfg80211_sched_scan_results(struct wiphy *wiphy); 3878 3879 /** 3880 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped 3881 * 3882 * @wiphy: the wiphy on which the scheduled scan stopped 3883 * 3884 * The driver can call this function to inform cfg80211 that the 3885 * scheduled scan had to be stopped, for whatever reason. The driver 3886 * is then called back via the sched_scan_stop operation when done. 3887 */ 3888 void cfg80211_sched_scan_stopped(struct wiphy *wiphy); 3889 3890 /** 3891 * cfg80211_sched_scan_stopped_rtnl - notify that the scheduled scan has stopped 3892 * 3893 * @wiphy: the wiphy on which the scheduled scan stopped 3894 * 3895 * The driver can call this function to inform cfg80211 that the 3896 * scheduled scan had to be stopped, for whatever reason. The driver 3897 * is then called back via the sched_scan_stop operation when done. 3898 * This function should be called with rtnl locked. 3899 */ 3900 void cfg80211_sched_scan_stopped_rtnl(struct wiphy *wiphy); 3901 3902 /** 3903 * cfg80211_inform_bss_width_frame - inform cfg80211 of a received BSS frame 3904 * 3905 * @wiphy: the wiphy reporting the BSS 3906 * @rx_channel: The channel the frame was received on 3907 * @scan_width: width of the control channel 3908 * @mgmt: the management frame (probe response or beacon) 3909 * @len: length of the management frame 3910 * @signal: the signal strength, type depends on the wiphy's signal_type 3911 * @gfp: context flags 3912 * 3913 * This informs cfg80211 that BSS information was found and 3914 * the BSS should be updated/added. 3915 * 3916 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3917 * Or %NULL on error. 3918 */ 3919 struct cfg80211_bss * __must_check 3920 cfg80211_inform_bss_width_frame(struct wiphy *wiphy, 3921 struct ieee80211_channel *rx_channel, 3922 enum nl80211_bss_scan_width scan_width, 3923 struct ieee80211_mgmt *mgmt, size_t len, 3924 s32 signal, gfp_t gfp); 3925 3926 static inline struct cfg80211_bss * __must_check 3927 cfg80211_inform_bss_frame(struct wiphy *wiphy, 3928 struct ieee80211_channel *rx_channel, 3929 struct ieee80211_mgmt *mgmt, size_t len, 3930 s32 signal, gfp_t gfp) 3931 { 3932 return cfg80211_inform_bss_width_frame(wiphy, rx_channel, 3933 NL80211_BSS_CHAN_WIDTH_20, 3934 mgmt, len, signal, gfp); 3935 } 3936 3937 /** 3938 * enum cfg80211_bss_frame_type - frame type that the BSS data came from 3939 * @CFG80211_BSS_FTYPE_UNKNOWN: driver doesn't know whether the data is 3940 * from a beacon or probe response 3941 * @CFG80211_BSS_FTYPE_BEACON: data comes from a beacon 3942 * @CFG80211_BSS_FTYPE_PRESP: data comes from a probe response 3943 */ 3944 enum cfg80211_bss_frame_type { 3945 CFG80211_BSS_FTYPE_UNKNOWN, 3946 CFG80211_BSS_FTYPE_BEACON, 3947 CFG80211_BSS_FTYPE_PRESP, 3948 }; 3949 3950 /** 3951 * cfg80211_inform_bss_width - inform cfg80211 of a new BSS 3952 * 3953 * @wiphy: the wiphy reporting the BSS 3954 * @rx_channel: The channel the frame was received on 3955 * @scan_width: width of the control channel 3956 * @ftype: frame type (if known) 3957 * @bssid: the BSSID of the BSS 3958 * @tsf: the TSF sent by the peer in the beacon/probe response (or 0) 3959 * @capability: the capability field sent by the peer 3960 * @beacon_interval: the beacon interval announced by the peer 3961 * @ie: additional IEs sent by the peer 3962 * @ielen: length of the additional IEs 3963 * @signal: the signal strength, type depends on the wiphy's signal_type 3964 * @gfp: context flags 3965 * 3966 * This informs cfg80211 that BSS information was found and 3967 * the BSS should be updated/added. 3968 * 3969 * Return: A referenced struct, must be released with cfg80211_put_bss()! 3970 * Or %NULL on error. 3971 */ 3972 struct cfg80211_bss * __must_check 3973 cfg80211_inform_bss_width(struct wiphy *wiphy, 3974 struct ieee80211_channel *rx_channel, 3975 enum nl80211_bss_scan_width scan_width, 3976 enum cfg80211_bss_frame_type ftype, 3977 const u8 *bssid, u64 tsf, u16 capability, 3978 u16 beacon_interval, const u8 *ie, size_t ielen, 3979 s32 signal, gfp_t gfp); 3980 3981 static inline struct cfg80211_bss * __must_check 3982 cfg80211_inform_bss(struct wiphy *wiphy, 3983 struct ieee80211_channel *rx_channel, 3984 enum cfg80211_bss_frame_type ftype, 3985 const u8 *bssid, u64 tsf, u16 capability, 3986 u16 beacon_interval, const u8 *ie, size_t ielen, 3987 s32 signal, gfp_t gfp) 3988 { 3989 return cfg80211_inform_bss_width(wiphy, rx_channel, 3990 NL80211_BSS_CHAN_WIDTH_20, ftype, 3991 bssid, tsf, capability, 3992 beacon_interval, ie, ielen, signal, 3993 gfp); 3994 } 3995 3996 struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy, 3997 struct ieee80211_channel *channel, 3998 const u8 *bssid, 3999 const u8 *ssid, size_t ssid_len, 4000 u16 capa_mask, u16 capa_val); 4001 static inline struct cfg80211_bss * 4002 cfg80211_get_ibss(struct wiphy *wiphy, 4003 struct ieee80211_channel *channel, 4004 const u8 *ssid, size_t ssid_len) 4005 { 4006 return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len, 4007 WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS); 4008 } 4009 4010 /** 4011 * cfg80211_ref_bss - reference BSS struct 4012 * @wiphy: the wiphy this BSS struct belongs to 4013 * @bss: the BSS struct to reference 4014 * 4015 * Increments the refcount of the given BSS struct. 4016 */ 4017 void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 4018 4019 /** 4020 * cfg80211_put_bss - unref BSS struct 4021 * @wiphy: the wiphy this BSS struct belongs to 4022 * @bss: the BSS struct 4023 * 4024 * Decrements the refcount of the given BSS struct. 4025 */ 4026 void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 4027 4028 /** 4029 * cfg80211_unlink_bss - unlink BSS from internal data structures 4030 * @wiphy: the wiphy 4031 * @bss: the bss to remove 4032 * 4033 * This function removes the given BSS from the internal data structures 4034 * thereby making it no longer show up in scan results etc. Use this 4035 * function when you detect a BSS is gone. Normally BSSes will also time 4036 * out, so it is not necessary to use this function at all. 4037 */ 4038 void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss); 4039 4040 static inline enum nl80211_bss_scan_width 4041 cfg80211_chandef_to_scan_width(const struct cfg80211_chan_def *chandef) 4042 { 4043 switch (chandef->width) { 4044 case NL80211_CHAN_WIDTH_5: 4045 return NL80211_BSS_CHAN_WIDTH_5; 4046 case NL80211_CHAN_WIDTH_10: 4047 return NL80211_BSS_CHAN_WIDTH_10; 4048 default: 4049 return NL80211_BSS_CHAN_WIDTH_20; 4050 } 4051 } 4052 4053 /** 4054 * cfg80211_rx_mlme_mgmt - notification of processed MLME management frame 4055 * @dev: network device 4056 * @buf: authentication frame (header + body) 4057 * @len: length of the frame data 4058 * 4059 * This function is called whenever an authentication, disassociation or 4060 * deauthentication frame has been received and processed in station mode. 4061 * After being asked to authenticate via cfg80211_ops::auth() the driver must 4062 * call either this function or cfg80211_auth_timeout(). 4063 * After being asked to associate via cfg80211_ops::assoc() the driver must 4064 * call either this function or cfg80211_auth_timeout(). 4065 * While connected, the driver must calls this for received and processed 4066 * disassociation and deauthentication frames. If the frame couldn't be used 4067 * because it was unprotected, the driver must call the function 4068 * cfg80211_rx_unprot_mlme_mgmt() instead. 4069 * 4070 * This function may sleep. The caller must hold the corresponding wdev's mutex. 4071 */ 4072 void cfg80211_rx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); 4073 4074 /** 4075 * cfg80211_auth_timeout - notification of timed out authentication 4076 * @dev: network device 4077 * @addr: The MAC address of the device with which the authentication timed out 4078 * 4079 * This function may sleep. The caller must hold the corresponding wdev's 4080 * mutex. 4081 */ 4082 void cfg80211_auth_timeout(struct net_device *dev, const u8 *addr); 4083 4084 /** 4085 * cfg80211_rx_assoc_resp - notification of processed association response 4086 * @dev: network device 4087 * @bss: the BSS that association was requested with, ownership of the pointer 4088 * moves to cfg80211 in this call 4089 * @buf: authentication frame (header + body) 4090 * @len: length of the frame data 4091 * @uapsd_queues: bitmap of ACs configured to uapsd. -1 if n/a. 4092 * 4093 * After being asked to associate via cfg80211_ops::assoc() the driver must 4094 * call either this function or cfg80211_auth_timeout(). 4095 * 4096 * This function may sleep. The caller must hold the corresponding wdev's mutex. 4097 */ 4098 void cfg80211_rx_assoc_resp(struct net_device *dev, 4099 struct cfg80211_bss *bss, 4100 const u8 *buf, size_t len, 4101 int uapsd_queues); 4102 4103 /** 4104 * cfg80211_assoc_timeout - notification of timed out association 4105 * @dev: network device 4106 * @bss: The BSS entry with which association timed out. 4107 * 4108 * This function may sleep. The caller must hold the corresponding wdev's mutex. 4109 */ 4110 void cfg80211_assoc_timeout(struct net_device *dev, struct cfg80211_bss *bss); 4111 4112 /** 4113 * cfg80211_tx_mlme_mgmt - notification of transmitted deauth/disassoc frame 4114 * @dev: network device 4115 * @buf: 802.11 frame (header + body) 4116 * @len: length of the frame data 4117 * 4118 * This function is called whenever deauthentication has been processed in 4119 * station mode. This includes both received deauthentication frames and 4120 * locally generated ones. This function may sleep. The caller must hold the 4121 * corresponding wdev's mutex. 4122 */ 4123 void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len); 4124 4125 /** 4126 * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame 4127 * @dev: network device 4128 * @buf: deauthentication frame (header + body) 4129 * @len: length of the frame data 4130 * 4131 * This function is called whenever a received deauthentication or dissassoc 4132 * frame has been dropped in station mode because of MFP being used but the 4133 * frame was not protected. This function may sleep. 4134 */ 4135 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, 4136 const u8 *buf, size_t len); 4137 4138 /** 4139 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP) 4140 * @dev: network device 4141 * @addr: The source MAC address of the frame 4142 * @key_type: The key type that the received frame used 4143 * @key_id: Key identifier (0..3). Can be -1 if missing. 4144 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets) 4145 * @gfp: allocation flags 4146 * 4147 * This function is called whenever the local MAC detects a MIC failure in a 4148 * received frame. This matches with MLME-MICHAELMICFAILURE.indication() 4149 * primitive. 4150 */ 4151 void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr, 4152 enum nl80211_key_type key_type, int key_id, 4153 const u8 *tsc, gfp_t gfp); 4154 4155 /** 4156 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS 4157 * 4158 * @dev: network device 4159 * @bssid: the BSSID of the IBSS joined 4160 * @channel: the channel of the IBSS joined 4161 * @gfp: allocation flags 4162 * 4163 * This function notifies cfg80211 that the device joined an IBSS or 4164 * switched to a different BSSID. Before this function can be called, 4165 * either a beacon has to have been received from the IBSS, or one of 4166 * the cfg80211_inform_bss{,_frame} functions must have been called 4167 * with the locally generated beacon -- this guarantees that there is 4168 * always a scan result for this IBSS. cfg80211 will handle the rest. 4169 */ 4170 void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, 4171 struct ieee80211_channel *channel, gfp_t gfp); 4172 4173 /** 4174 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate 4175 * 4176 * @dev: network device 4177 * @macaddr: the MAC address of the new candidate 4178 * @ie: information elements advertised by the peer candidate 4179 * @ie_len: lenght of the information elements buffer 4180 * @gfp: allocation flags 4181 * 4182 * This function notifies cfg80211 that the mesh peer candidate has been 4183 * detected, most likely via a beacon or, less likely, via a probe response. 4184 * cfg80211 then sends a notification to userspace. 4185 */ 4186 void cfg80211_notify_new_peer_candidate(struct net_device *dev, 4187 const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp); 4188 4189 /** 4190 * DOC: RFkill integration 4191 * 4192 * RFkill integration in cfg80211 is almost invisible to drivers, 4193 * as cfg80211 automatically registers an rfkill instance for each 4194 * wireless device it knows about. Soft kill is also translated 4195 * into disconnecting and turning all interfaces off, drivers are 4196 * expected to turn off the device when all interfaces are down. 4197 * 4198 * However, devices may have a hard RFkill line, in which case they 4199 * also need to interact with the rfkill subsystem, via cfg80211. 4200 * They can do this with a few helper functions documented here. 4201 */ 4202 4203 /** 4204 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state 4205 * @wiphy: the wiphy 4206 * @blocked: block status 4207 */ 4208 void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked); 4209 4210 /** 4211 * wiphy_rfkill_start_polling - start polling rfkill 4212 * @wiphy: the wiphy 4213 */ 4214 void wiphy_rfkill_start_polling(struct wiphy *wiphy); 4215 4216 /** 4217 * wiphy_rfkill_stop_polling - stop polling rfkill 4218 * @wiphy: the wiphy 4219 */ 4220 void wiphy_rfkill_stop_polling(struct wiphy *wiphy); 4221 4222 /** 4223 * DOC: Vendor commands 4224 * 4225 * Occasionally, there are special protocol or firmware features that 4226 * can't be implemented very openly. For this and similar cases, the 4227 * vendor command functionality allows implementing the features with 4228 * (typically closed-source) userspace and firmware, using nl80211 as 4229 * the configuration mechanism. 4230 * 4231 * A driver supporting vendor commands must register them as an array 4232 * in struct wiphy, with handlers for each one, each command has an 4233 * OUI and sub command ID to identify it. 4234 * 4235 * Note that this feature should not be (ab)used to implement protocol 4236 * features that could openly be shared across drivers. In particular, 4237 * it must never be required to use vendor commands to implement any 4238 * "normal" functionality that higher-level userspace like connection 4239 * managers etc. need. 4240 */ 4241 4242 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, 4243 enum nl80211_commands cmd, 4244 enum nl80211_attrs attr, 4245 int approxlen); 4246 4247 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, 4248 enum nl80211_commands cmd, 4249 enum nl80211_attrs attr, 4250 int vendor_event_idx, 4251 int approxlen, gfp_t gfp); 4252 4253 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp); 4254 4255 /** 4256 * cfg80211_vendor_cmd_alloc_reply_skb - allocate vendor command reply 4257 * @wiphy: the wiphy 4258 * @approxlen: an upper bound of the length of the data that will 4259 * be put into the skb 4260 * 4261 * This function allocates and pre-fills an skb for a reply to 4262 * a vendor command. Since it is intended for a reply, calling 4263 * it outside of a vendor command's doit() operation is invalid. 4264 * 4265 * The returned skb is pre-filled with some identifying data in 4266 * a way that any data that is put into the skb (with skb_put(), 4267 * nla_put() or similar) will end up being within the 4268 * %NL80211_ATTR_VENDOR_DATA attribute, so all that needs to be done 4269 * with the skb is adding data for the corresponding userspace tool 4270 * which can then read that data out of the vendor data attribute. 4271 * You must not modify the skb in any other way. 4272 * 4273 * When done, call cfg80211_vendor_cmd_reply() with the skb and return 4274 * its error code as the result of the doit() operation. 4275 * 4276 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 4277 */ 4278 static inline struct sk_buff * 4279 cfg80211_vendor_cmd_alloc_reply_skb(struct wiphy *wiphy, int approxlen) 4280 { 4281 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_VENDOR, 4282 NL80211_ATTR_VENDOR_DATA, approxlen); 4283 } 4284 4285 /** 4286 * cfg80211_vendor_cmd_reply - send the reply skb 4287 * @skb: The skb, must have been allocated with 4288 * cfg80211_vendor_cmd_alloc_reply_skb() 4289 * 4290 * Since calling this function will usually be the last thing 4291 * before returning from the vendor command doit() you should 4292 * return the error code. Note that this function consumes the 4293 * skb regardless of the return value. 4294 * 4295 * Return: An error code or 0 on success. 4296 */ 4297 int cfg80211_vendor_cmd_reply(struct sk_buff *skb); 4298 4299 /** 4300 * cfg80211_vendor_event_alloc - allocate vendor-specific event skb 4301 * @wiphy: the wiphy 4302 * @event_idx: index of the vendor event in the wiphy's vendor_events 4303 * @approxlen: an upper bound of the length of the data that will 4304 * be put into the skb 4305 * @gfp: allocation flags 4306 * 4307 * This function allocates and pre-fills an skb for an event on the 4308 * vendor-specific multicast group. 4309 * 4310 * When done filling the skb, call cfg80211_vendor_event() with the 4311 * skb to send the event. 4312 * 4313 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 4314 */ 4315 static inline struct sk_buff * 4316 cfg80211_vendor_event_alloc(struct wiphy *wiphy, int approxlen, 4317 int event_idx, gfp_t gfp) 4318 { 4319 return __cfg80211_alloc_event_skb(wiphy, NL80211_CMD_VENDOR, 4320 NL80211_ATTR_VENDOR_DATA, 4321 event_idx, approxlen, gfp); 4322 } 4323 4324 /** 4325 * cfg80211_vendor_event - send the event 4326 * @skb: The skb, must have been allocated with cfg80211_vendor_event_alloc() 4327 * @gfp: allocation flags 4328 * 4329 * This function sends the given @skb, which must have been allocated 4330 * by cfg80211_vendor_event_alloc(), as an event. It always consumes it. 4331 */ 4332 static inline void cfg80211_vendor_event(struct sk_buff *skb, gfp_t gfp) 4333 { 4334 __cfg80211_send_event_skb(skb, gfp); 4335 } 4336 4337 #ifdef CONFIG_NL80211_TESTMODE 4338 /** 4339 * DOC: Test mode 4340 * 4341 * Test mode is a set of utility functions to allow drivers to 4342 * interact with driver-specific tools to aid, for instance, 4343 * factory programming. 4344 * 4345 * This chapter describes how drivers interact with it, for more 4346 * information see the nl80211 book's chapter on it. 4347 */ 4348 4349 /** 4350 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply 4351 * @wiphy: the wiphy 4352 * @approxlen: an upper bound of the length of the data that will 4353 * be put into the skb 4354 * 4355 * This function allocates and pre-fills an skb for a reply to 4356 * the testmode command. Since it is intended for a reply, calling 4357 * it outside of the @testmode_cmd operation is invalid. 4358 * 4359 * The returned skb is pre-filled with the wiphy index and set up in 4360 * a way that any data that is put into the skb (with skb_put(), 4361 * nla_put() or similar) will end up being within the 4362 * %NL80211_ATTR_TESTDATA attribute, so all that needs to be done 4363 * with the skb is adding data for the corresponding userspace tool 4364 * which can then read that data out of the testdata attribute. You 4365 * must not modify the skb in any other way. 4366 * 4367 * When done, call cfg80211_testmode_reply() with the skb and return 4368 * its error code as the result of the @testmode_cmd operation. 4369 * 4370 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 4371 */ 4372 static inline struct sk_buff * 4373 cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, int approxlen) 4374 { 4375 return __cfg80211_alloc_reply_skb(wiphy, NL80211_CMD_TESTMODE, 4376 NL80211_ATTR_TESTDATA, approxlen); 4377 } 4378 4379 /** 4380 * cfg80211_testmode_reply - send the reply skb 4381 * @skb: The skb, must have been allocated with 4382 * cfg80211_testmode_alloc_reply_skb() 4383 * 4384 * Since calling this function will usually be the last thing 4385 * before returning from the @testmode_cmd you should return 4386 * the error code. Note that this function consumes the skb 4387 * regardless of the return value. 4388 * 4389 * Return: An error code or 0 on success. 4390 */ 4391 static inline int cfg80211_testmode_reply(struct sk_buff *skb) 4392 { 4393 return cfg80211_vendor_cmd_reply(skb); 4394 } 4395 4396 /** 4397 * cfg80211_testmode_alloc_event_skb - allocate testmode event 4398 * @wiphy: the wiphy 4399 * @approxlen: an upper bound of the length of the data that will 4400 * be put into the skb 4401 * @gfp: allocation flags 4402 * 4403 * This function allocates and pre-fills an skb for an event on the 4404 * testmode multicast group. 4405 * 4406 * The returned skb is set up in the same way as with 4407 * cfg80211_testmode_alloc_reply_skb() but prepared for an event. As 4408 * there, you should simply add data to it that will then end up in the 4409 * %NL80211_ATTR_TESTDATA attribute. Again, you must not modify the skb 4410 * in any other way. 4411 * 4412 * When done filling the skb, call cfg80211_testmode_event() with the 4413 * skb to send the event. 4414 * 4415 * Return: An allocated and pre-filled skb. %NULL if any errors happen. 4416 */ 4417 static inline struct sk_buff * 4418 cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, int approxlen, gfp_t gfp) 4419 { 4420 return __cfg80211_alloc_event_skb(wiphy, NL80211_CMD_TESTMODE, 4421 NL80211_ATTR_TESTDATA, -1, 4422 approxlen, gfp); 4423 } 4424 4425 /** 4426 * cfg80211_testmode_event - send the event 4427 * @skb: The skb, must have been allocated with 4428 * cfg80211_testmode_alloc_event_skb() 4429 * @gfp: allocation flags 4430 * 4431 * This function sends the given @skb, which must have been allocated 4432 * by cfg80211_testmode_alloc_event_skb(), as an event. It always 4433 * consumes it. 4434 */ 4435 static inline void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) 4436 { 4437 __cfg80211_send_event_skb(skb, gfp); 4438 } 4439 4440 #define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd), 4441 #define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd), 4442 #else 4443 #define CFG80211_TESTMODE_CMD(cmd) 4444 #define CFG80211_TESTMODE_DUMP(cmd) 4445 #endif 4446 4447 /** 4448 * cfg80211_connect_result - notify cfg80211 of connection result 4449 * 4450 * @dev: network device 4451 * @bssid: the BSSID of the AP 4452 * @req_ie: association request IEs (maybe be %NULL) 4453 * @req_ie_len: association request IEs length 4454 * @resp_ie: association response IEs (may be %NULL) 4455 * @resp_ie_len: assoc response IEs length 4456 * @status: status code, 0 for successful connection, use 4457 * %WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you 4458 * the real status code for failures. 4459 * @gfp: allocation flags 4460 * 4461 * It should be called by the underlying driver whenever connect() has 4462 * succeeded. 4463 */ 4464 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, 4465 const u8 *req_ie, size_t req_ie_len, 4466 const u8 *resp_ie, size_t resp_ie_len, 4467 u16 status, gfp_t gfp); 4468 4469 /** 4470 * cfg80211_roamed - notify cfg80211 of roaming 4471 * 4472 * @dev: network device 4473 * @channel: the channel of the new AP 4474 * @bssid: the BSSID of the new AP 4475 * @req_ie: association request IEs (maybe be %NULL) 4476 * @req_ie_len: association request IEs length 4477 * @resp_ie: association response IEs (may be %NULL) 4478 * @resp_ie_len: assoc response IEs length 4479 * @gfp: allocation flags 4480 * 4481 * It should be called by the underlying driver whenever it roamed 4482 * from one AP to another while connected. 4483 */ 4484 void cfg80211_roamed(struct net_device *dev, 4485 struct ieee80211_channel *channel, 4486 const u8 *bssid, 4487 const u8 *req_ie, size_t req_ie_len, 4488 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 4489 4490 /** 4491 * cfg80211_roamed_bss - notify cfg80211 of roaming 4492 * 4493 * @dev: network device 4494 * @bss: entry of bss to which STA got roamed 4495 * @req_ie: association request IEs (maybe be %NULL) 4496 * @req_ie_len: association request IEs length 4497 * @resp_ie: association response IEs (may be %NULL) 4498 * @resp_ie_len: assoc response IEs length 4499 * @gfp: allocation flags 4500 * 4501 * This is just a wrapper to notify cfg80211 of roaming event with driver 4502 * passing bss to avoid a race in timeout of the bss entry. It should be 4503 * called by the underlying driver whenever it roamed from one AP to another 4504 * while connected. Drivers which have roaming implemented in firmware 4505 * may use this function to avoid a race in bss entry timeout where the bss 4506 * entry of the new AP is seen in the driver, but gets timed out by the time 4507 * it is accessed in __cfg80211_roamed() due to delay in scheduling 4508 * rdev->event_work. In case of any failures, the reference is released 4509 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise, 4510 * it will be released while diconneting from the current bss. 4511 */ 4512 void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss, 4513 const u8 *req_ie, size_t req_ie_len, 4514 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp); 4515 4516 /** 4517 * cfg80211_disconnected - notify cfg80211 that connection was dropped 4518 * 4519 * @dev: network device 4520 * @ie: information elements of the deauth/disassoc frame (may be %NULL) 4521 * @ie_len: length of IEs 4522 * @reason: reason code for the disconnection, set it to 0 if unknown 4523 * @gfp: allocation flags 4524 * 4525 * After it calls this function, the driver should enter an idle state 4526 * and not try to connect to any AP any more. 4527 */ 4528 void cfg80211_disconnected(struct net_device *dev, u16 reason, 4529 const u8 *ie, size_t ie_len, gfp_t gfp); 4530 4531 /** 4532 * cfg80211_ready_on_channel - notification of remain_on_channel start 4533 * @wdev: wireless device 4534 * @cookie: the request cookie 4535 * @chan: The current channel (from remain_on_channel request) 4536 * @duration: Duration in milliseconds that the driver intents to remain on the 4537 * channel 4538 * @gfp: allocation flags 4539 */ 4540 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, 4541 struct ieee80211_channel *chan, 4542 unsigned int duration, gfp_t gfp); 4543 4544 /** 4545 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired 4546 * @wdev: wireless device 4547 * @cookie: the request cookie 4548 * @chan: The current channel (from remain_on_channel request) 4549 * @gfp: allocation flags 4550 */ 4551 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, 4552 struct ieee80211_channel *chan, 4553 gfp_t gfp); 4554 4555 4556 /** 4557 * cfg80211_new_sta - notify userspace about station 4558 * 4559 * @dev: the netdev 4560 * @mac_addr: the station's address 4561 * @sinfo: the station information 4562 * @gfp: allocation flags 4563 */ 4564 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, 4565 struct station_info *sinfo, gfp_t gfp); 4566 4567 /** 4568 * cfg80211_del_sta - notify userspace about deletion of a station 4569 * 4570 * @dev: the netdev 4571 * @mac_addr: the station's address 4572 * @gfp: allocation flags 4573 */ 4574 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp); 4575 4576 /** 4577 * cfg80211_conn_failed - connection request failed notification 4578 * 4579 * @dev: the netdev 4580 * @mac_addr: the station's address 4581 * @reason: the reason for connection failure 4582 * @gfp: allocation flags 4583 * 4584 * Whenever a station tries to connect to an AP and if the station 4585 * could not connect to the AP as the AP has rejected the connection 4586 * for some reasons, this function is called. 4587 * 4588 * The reason for connection failure can be any of the value from 4589 * nl80211_connect_failed_reason enum 4590 */ 4591 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, 4592 enum nl80211_connect_failed_reason reason, 4593 gfp_t gfp); 4594 4595 /** 4596 * cfg80211_rx_mgmt - notification of received, unprocessed management frame 4597 * @wdev: wireless device receiving the frame 4598 * @freq: Frequency on which the frame was received in MHz 4599 * @sig_dbm: signal strength in mBm, or 0 if unknown 4600 * @buf: Management frame (header + body) 4601 * @len: length of the frame data 4602 * @flags: flags, as defined in enum nl80211_rxmgmt_flags 4603 * 4604 * This function is called whenever an Action frame is received for a station 4605 * mode interface, but is not processed in kernel. 4606 * 4607 * Return: %true if a user space application has registered for this frame. 4608 * For action frames, that makes it responsible for rejecting unrecognized 4609 * action frames; %false otherwise, in which case for action frames the 4610 * driver is responsible for rejecting the frame. 4611 */ 4612 bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm, 4613 const u8 *buf, size_t len, u32 flags); 4614 4615 /** 4616 * cfg80211_mgmt_tx_status - notification of TX status for management frame 4617 * @wdev: wireless device receiving the frame 4618 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx() 4619 * @buf: Management frame (header + body) 4620 * @len: length of the frame data 4621 * @ack: Whether frame was acknowledged 4622 * @gfp: context flags 4623 * 4624 * This function is called whenever a management frame was requested to be 4625 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the 4626 * transmission attempt. 4627 */ 4628 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, 4629 const u8 *buf, size_t len, bool ack, gfp_t gfp); 4630 4631 4632 /** 4633 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event 4634 * @dev: network device 4635 * @rssi_event: the triggered RSSI event 4636 * @gfp: context flags 4637 * 4638 * This function is called when a configured connection quality monitoring 4639 * rssi threshold reached event occurs. 4640 */ 4641 void cfg80211_cqm_rssi_notify(struct net_device *dev, 4642 enum nl80211_cqm_rssi_threshold_event rssi_event, 4643 gfp_t gfp); 4644 4645 /** 4646 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer 4647 * @dev: network device 4648 * @peer: peer's MAC address 4649 * @num_packets: how many packets were lost -- should be a fixed threshold 4650 * but probably no less than maybe 50, or maybe a throughput dependent 4651 * threshold (to account for temporary interference) 4652 * @gfp: context flags 4653 */ 4654 void cfg80211_cqm_pktloss_notify(struct net_device *dev, 4655 const u8 *peer, u32 num_packets, gfp_t gfp); 4656 4657 /** 4658 * cfg80211_cqm_txe_notify - TX error rate event 4659 * @dev: network device 4660 * @peer: peer's MAC address 4661 * @num_packets: how many packets were lost 4662 * @rate: % of packets which failed transmission 4663 * @intvl: interval (in s) over which the TX failure threshold was breached. 4664 * @gfp: context flags 4665 * 4666 * Notify userspace when configured % TX failures over number of packets in a 4667 * given interval is exceeded. 4668 */ 4669 void cfg80211_cqm_txe_notify(struct net_device *dev, const u8 *peer, 4670 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp); 4671 4672 /** 4673 * cfg80211_cqm_beacon_loss_notify - beacon loss event 4674 * @dev: network device 4675 * @gfp: context flags 4676 * 4677 * Notify userspace about beacon loss from the connected AP. 4678 */ 4679 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp); 4680 4681 /** 4682 * cfg80211_radar_event - radar detection event 4683 * @wiphy: the wiphy 4684 * @chandef: chandef for the current channel 4685 * @gfp: context flags 4686 * 4687 * This function is called when a radar is detected on the current chanenl. 4688 */ 4689 void cfg80211_radar_event(struct wiphy *wiphy, 4690 struct cfg80211_chan_def *chandef, gfp_t gfp); 4691 4692 /** 4693 * cfg80211_cac_event - Channel availability check (CAC) event 4694 * @netdev: network device 4695 * @chandef: chandef for the current channel 4696 * @event: type of event 4697 * @gfp: context flags 4698 * 4699 * This function is called when a Channel availability check (CAC) is finished 4700 * or aborted. This must be called to notify the completion of a CAC process, 4701 * also by full-MAC drivers. 4702 */ 4703 void cfg80211_cac_event(struct net_device *netdev, 4704 const struct cfg80211_chan_def *chandef, 4705 enum nl80211_radar_event event, gfp_t gfp); 4706 4707 4708 /** 4709 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying 4710 * @dev: network device 4711 * @bssid: BSSID of AP (to avoid races) 4712 * @replay_ctr: new replay counter 4713 * @gfp: allocation flags 4714 */ 4715 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, 4716 const u8 *replay_ctr, gfp_t gfp); 4717 4718 /** 4719 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate 4720 * @dev: network device 4721 * @index: candidate index (the smaller the index, the higher the priority) 4722 * @bssid: BSSID of AP 4723 * @preauth: Whether AP advertises support for RSN pre-authentication 4724 * @gfp: allocation flags 4725 */ 4726 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, 4727 const u8 *bssid, bool preauth, gfp_t gfp); 4728 4729 /** 4730 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame 4731 * @dev: The device the frame matched to 4732 * @addr: the transmitter address 4733 * @gfp: context flags 4734 * 4735 * This function is used in AP mode (only!) to inform userspace that 4736 * a spurious class 3 frame was received, to be able to deauth the 4737 * sender. 4738 * Return: %true if the frame was passed to userspace (or this failed 4739 * for a reason other than not having a subscription.) 4740 */ 4741 bool cfg80211_rx_spurious_frame(struct net_device *dev, 4742 const u8 *addr, gfp_t gfp); 4743 4744 /** 4745 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame 4746 * @dev: The device the frame matched to 4747 * @addr: the transmitter address 4748 * @gfp: context flags 4749 * 4750 * This function is used in AP mode (only!) to inform userspace that 4751 * an associated station sent a 4addr frame but that wasn't expected. 4752 * It is allowed and desirable to send this event only once for each 4753 * station to avoid event flooding. 4754 * Return: %true if the frame was passed to userspace (or this failed 4755 * for a reason other than not having a subscription.) 4756 */ 4757 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, 4758 const u8 *addr, gfp_t gfp); 4759 4760 /** 4761 * cfg80211_probe_status - notify userspace about probe status 4762 * @dev: the device the probe was sent on 4763 * @addr: the address of the peer 4764 * @cookie: the cookie filled in @probe_client previously 4765 * @acked: indicates whether probe was acked or not 4766 * @gfp: allocation flags 4767 */ 4768 void cfg80211_probe_status(struct net_device *dev, const u8 *addr, 4769 u64 cookie, bool acked, gfp_t gfp); 4770 4771 /** 4772 * cfg80211_report_obss_beacon - report beacon from other APs 4773 * @wiphy: The wiphy that received the beacon 4774 * @frame: the frame 4775 * @len: length of the frame 4776 * @freq: frequency the frame was received on 4777 * @sig_dbm: signal strength in mBm, or 0 if unknown 4778 * 4779 * Use this function to report to userspace when a beacon was 4780 * received. It is not useful to call this when there is no 4781 * netdev that is in AP/GO mode. 4782 */ 4783 void cfg80211_report_obss_beacon(struct wiphy *wiphy, 4784 const u8 *frame, size_t len, 4785 int freq, int sig_dbm); 4786 4787 /** 4788 * cfg80211_reg_can_beacon - check if beaconing is allowed 4789 * @wiphy: the wiphy 4790 * @chandef: the channel definition 4791 * @iftype: interface type 4792 * 4793 * Return: %true if there is no secondary channel or the secondary channel(s) 4794 * can be used for beaconing (i.e. is not a radar channel etc.) 4795 */ 4796 bool cfg80211_reg_can_beacon(struct wiphy *wiphy, 4797 struct cfg80211_chan_def *chandef, 4798 enum nl80211_iftype iftype); 4799 4800 /* 4801 * cfg80211_ch_switch_notify - update wdev channel and notify userspace 4802 * @dev: the device which switched channels 4803 * @chandef: the new channel definition 4804 * 4805 * Caller must acquire wdev_lock, therefore must only be called from sleepable 4806 * driver context! 4807 */ 4808 void cfg80211_ch_switch_notify(struct net_device *dev, 4809 struct cfg80211_chan_def *chandef); 4810 4811 /* 4812 * cfg80211_ch_switch_started_notify - notify channel switch start 4813 * @dev: the device on which the channel switch started 4814 * @chandef: the future channel definition 4815 * @count: the number of TBTTs until the channel switch happens 4816 * 4817 * Inform the userspace about the channel switch that has just 4818 * started, so that it can take appropriate actions (eg. starting 4819 * channel switch on other vifs), if necessary. 4820 */ 4821 void cfg80211_ch_switch_started_notify(struct net_device *dev, 4822 struct cfg80211_chan_def *chandef, 4823 u8 count); 4824 4825 /** 4826 * ieee80211_operating_class_to_band - convert operating class to band 4827 * 4828 * @operating_class: the operating class to convert 4829 * @band: band pointer to fill 4830 * 4831 * Returns %true if the conversion was successful, %false otherwise. 4832 */ 4833 bool ieee80211_operating_class_to_band(u8 operating_class, 4834 enum ieee80211_band *band); 4835 4836 /* 4837 * cfg80211_tdls_oper_request - request userspace to perform TDLS operation 4838 * @dev: the device on which the operation is requested 4839 * @peer: the MAC address of the peer device 4840 * @oper: the requested TDLS operation (NL80211_TDLS_SETUP or 4841 * NL80211_TDLS_TEARDOWN) 4842 * @reason_code: the reason code for teardown request 4843 * @gfp: allocation flags 4844 * 4845 * This function is used to request userspace to perform TDLS operation that 4846 * requires knowledge of keys, i.e., link setup or teardown when the AP 4847 * connection uses encryption. This is optional mechanism for the driver to use 4848 * if it can automatically determine when a TDLS link could be useful (e.g., 4849 * based on traffic and signal strength for a peer). 4850 */ 4851 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, 4852 enum nl80211_tdls_operation oper, 4853 u16 reason_code, gfp_t gfp); 4854 4855 /* 4856 * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units) 4857 * @rate: given rate_info to calculate bitrate from 4858 * 4859 * return 0 if MCS index >= 32 4860 */ 4861 u32 cfg80211_calculate_bitrate(struct rate_info *rate); 4862 4863 /** 4864 * cfg80211_unregister_wdev - remove the given wdev 4865 * @wdev: struct wireless_dev to remove 4866 * 4867 * Call this function only for wdevs that have no netdev assigned, 4868 * e.g. P2P Devices. It removes the device from the list so that 4869 * it can no longer be used. It is necessary to call this function 4870 * even when cfg80211 requests the removal of the interface by 4871 * calling the del_virtual_intf() callback. The function must also 4872 * be called when the driver wishes to unregister the wdev, e.g. 4873 * when the device is unbound from the driver. 4874 * 4875 * Requires the RTNL to be held. 4876 */ 4877 void cfg80211_unregister_wdev(struct wireless_dev *wdev); 4878 4879 /** 4880 * struct cfg80211_ft_event - FT Information Elements 4881 * @ies: FT IEs 4882 * @ies_len: length of the FT IE in bytes 4883 * @target_ap: target AP's MAC address 4884 * @ric_ies: RIC IE 4885 * @ric_ies_len: length of the RIC IE in bytes 4886 */ 4887 struct cfg80211_ft_event_params { 4888 const u8 *ies; 4889 size_t ies_len; 4890 const u8 *target_ap; 4891 const u8 *ric_ies; 4892 size_t ric_ies_len; 4893 }; 4894 4895 /** 4896 * cfg80211_ft_event - notify userspace about FT IE and RIC IE 4897 * @netdev: network device 4898 * @ft_event: IE information 4899 */ 4900 void cfg80211_ft_event(struct net_device *netdev, 4901 struct cfg80211_ft_event_params *ft_event); 4902 4903 /** 4904 * cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer 4905 * @ies: the input IE buffer 4906 * @len: the input length 4907 * @attr: the attribute ID to find 4908 * @buf: output buffer, can be %NULL if the data isn't needed, e.g. 4909 * if the function is only called to get the needed buffer size 4910 * @bufsize: size of the output buffer 4911 * 4912 * The function finds a given P2P attribute in the (vendor) IEs and 4913 * copies its contents to the given buffer. 4914 * 4915 * Return: A negative error code (-%EILSEQ or -%ENOENT) if the data is 4916 * malformed or the attribute can't be found (respectively), or the 4917 * length of the found attribute (which can be zero). 4918 */ 4919 int cfg80211_get_p2p_attr(const u8 *ies, unsigned int len, 4920 enum ieee80211_p2p_attr_id attr, 4921 u8 *buf, unsigned int bufsize); 4922 4923 /** 4924 * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN 4925 * @wdev: the wireless device reporting the wakeup 4926 * @wakeup: the wakeup report 4927 * @gfp: allocation flags 4928 * 4929 * This function reports that the given device woke up. If it 4930 * caused the wakeup, report the reason(s), otherwise you may 4931 * pass %NULL as the @wakeup parameter to advertise that something 4932 * else caused the wakeup. 4933 */ 4934 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, 4935 struct cfg80211_wowlan_wakeup *wakeup, 4936 gfp_t gfp); 4937 4938 /** 4939 * cfg80211_crit_proto_stopped() - indicate critical protocol stopped by driver. 4940 * 4941 * @wdev: the wireless device for which critical protocol is stopped. 4942 * @gfp: allocation flags 4943 * 4944 * This function can be called by the driver to indicate it has reverted 4945 * operation back to normal. One reason could be that the duration given 4946 * by .crit_proto_start() has expired. 4947 */ 4948 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp); 4949 4950 /** 4951 * ieee80211_get_num_supported_channels - get number of channels device has 4952 * @wiphy: the wiphy 4953 * 4954 * Return: the number of channels supported by the device. 4955 */ 4956 unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy); 4957 4958 /** 4959 * cfg80211_check_combinations - check interface combinations 4960 * 4961 * @wiphy: the wiphy 4962 * @num_different_channels: the number of different channels we want 4963 * to use for verification 4964 * @radar_detect: a bitmap where each bit corresponds to a channel 4965 * width where radar detection is needed, as in the definition of 4966 * &struct ieee80211_iface_combination.@radar_detect_widths 4967 * @iftype_num: array with the numbers of interfaces of each interface 4968 * type. The index is the interface type as specified in &enum 4969 * nl80211_iftype. 4970 * 4971 * This function can be called by the driver to check whether a 4972 * combination of interfaces and their types are allowed according to 4973 * the interface combinations. 4974 */ 4975 int cfg80211_check_combinations(struct wiphy *wiphy, 4976 const int num_different_channels, 4977 const u8 radar_detect, 4978 const int iftype_num[NUM_NL80211_IFTYPES]); 4979 4980 /** 4981 * cfg80211_iter_combinations - iterate over matching combinations 4982 * 4983 * @wiphy: the wiphy 4984 * @num_different_channels: the number of different channels we want 4985 * to use for verification 4986 * @radar_detect: a bitmap where each bit corresponds to a channel 4987 * width where radar detection is needed, as in the definition of 4988 * &struct ieee80211_iface_combination.@radar_detect_widths 4989 * @iftype_num: array with the numbers of interfaces of each interface 4990 * type. The index is the interface type as specified in &enum 4991 * nl80211_iftype. 4992 * @iter: function to call for each matching combination 4993 * @data: pointer to pass to iter function 4994 * 4995 * This function can be called by the driver to check what possible 4996 * combinations it fits in at a given moment, e.g. for channel switching 4997 * purposes. 4998 */ 4999 int cfg80211_iter_combinations(struct wiphy *wiphy, 5000 const int num_different_channels, 5001 const u8 radar_detect, 5002 const int iftype_num[NUM_NL80211_IFTYPES], 5003 void (*iter)(const struct ieee80211_iface_combination *c, 5004 void *data), 5005 void *data); 5006 5007 /* 5008 * cfg80211_stop_iface - trigger interface disconnection 5009 * 5010 * @wiphy: the wiphy 5011 * @wdev: wireless device 5012 * @gfp: context flags 5013 * 5014 * Trigger interface to be stopped as if AP was stopped, IBSS/mesh left, STA 5015 * disconnected. 5016 * 5017 * Note: This doesn't need any locks and is asynchronous. 5018 */ 5019 void cfg80211_stop_iface(struct wiphy *wiphy, struct wireless_dev *wdev, 5020 gfp_t gfp); 5021 5022 /** 5023 * cfg80211_shutdown_all_interfaces - shut down all interfaces for a wiphy 5024 * @wiphy: the wiphy to shut down 5025 * 5026 * This function shuts down all interfaces belonging to this wiphy by 5027 * calling dev_close() (and treating non-netdev interfaces as needed). 5028 * It shouldn't really be used unless there are some fatal device errors 5029 * that really can't be recovered in any other way. 5030 * 5031 * Callers must hold the RTNL and be able to deal with callbacks into 5032 * the driver while the function is running. 5033 */ 5034 void cfg80211_shutdown_all_interfaces(struct wiphy *wiphy); 5035 5036 5037 /* ethtool helper */ 5038 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info); 5039 5040 /* Logging, debugging and troubleshooting/diagnostic helpers. */ 5041 5042 /* wiphy_printk helpers, similar to dev_printk */ 5043 5044 #define wiphy_printk(level, wiphy, format, args...) \ 5045 dev_printk(level, &(wiphy)->dev, format, ##args) 5046 #define wiphy_emerg(wiphy, format, args...) \ 5047 dev_emerg(&(wiphy)->dev, format, ##args) 5048 #define wiphy_alert(wiphy, format, args...) \ 5049 dev_alert(&(wiphy)->dev, format, ##args) 5050 #define wiphy_crit(wiphy, format, args...) \ 5051 dev_crit(&(wiphy)->dev, format, ##args) 5052 #define wiphy_err(wiphy, format, args...) \ 5053 dev_err(&(wiphy)->dev, format, ##args) 5054 #define wiphy_warn(wiphy, format, args...) \ 5055 dev_warn(&(wiphy)->dev, format, ##args) 5056 #define wiphy_notice(wiphy, format, args...) \ 5057 dev_notice(&(wiphy)->dev, format, ##args) 5058 #define wiphy_info(wiphy, format, args...) \ 5059 dev_info(&(wiphy)->dev, format, ##args) 5060 5061 #define wiphy_debug(wiphy, format, args...) \ 5062 wiphy_printk(KERN_DEBUG, wiphy, format, ##args) 5063 5064 #define wiphy_dbg(wiphy, format, args...) \ 5065 dev_dbg(&(wiphy)->dev, format, ##args) 5066 5067 #if defined(VERBOSE_DEBUG) 5068 #define wiphy_vdbg wiphy_dbg 5069 #else 5070 #define wiphy_vdbg(wiphy, format, args...) \ 5071 ({ \ 5072 if (0) \ 5073 wiphy_printk(KERN_DEBUG, wiphy, format, ##args); \ 5074 0; \ 5075 }) 5076 #endif 5077 5078 /* 5079 * wiphy_WARN() acts like wiphy_printk(), but with the key difference 5080 * of using a WARN/WARN_ON to get the message out, including the 5081 * file/line information and a backtrace. 5082 */ 5083 #define wiphy_WARN(wiphy, format, args...) \ 5084 WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args); 5085 5086 #endif /* __NET_CFG80211_H */ 5087