driver.h revision 7832adbbd72a1b784b7fb74a71a5d4085b0cb0d3
1/* 2 * Driver interface definition 3 * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 * 8 * This file defines a driver interface used by both %wpa_supplicant and 9 * hostapd. The first part of the file defines data structures used in various 10 * driver operations. This is followed by the struct wpa_driver_ops that each 11 * driver wrapper will beed to define with callback functions for requesting 12 * driver operations. After this, there are definitions for driver event 13 * reporting with wpa_supplicant_event() and some convenience helper functions 14 * that can be used to report events. 15 */ 16 17#ifndef DRIVER_H 18#define DRIVER_H 19 20#define WPA_SUPPLICANT_DRIVER_VERSION 4 21 22#include "common/defs.h" 23#include "utils/list.h" 24 25#define HOSTAPD_CHAN_DISABLED 0x00000001 26#define HOSTAPD_CHAN_PASSIVE_SCAN 0x00000002 27#define HOSTAPD_CHAN_NO_IBSS 0x00000004 28#define HOSTAPD_CHAN_RADAR 0x00000008 29#define HOSTAPD_CHAN_HT40PLUS 0x00000010 30#define HOSTAPD_CHAN_HT40MINUS 0x00000020 31#define HOSTAPD_CHAN_HT40 0x00000040 32#define HOSTAPD_CHAN_SURVEY_LIST_INITIALIZED 0x00000080 33 34#define HOSTAPD_CHAN_DFS_UNKNOWN 0x00000000 35#define HOSTAPD_CHAN_DFS_USABLE 0x00000100 36#define HOSTAPD_CHAN_DFS_UNAVAILABLE 0x00000200 37#define HOSTAPD_CHAN_DFS_AVAILABLE 0x00000300 38#define HOSTAPD_CHAN_DFS_MASK 0x00000300 39 40#define HOSTAPD_CHAN_VHT_10_70 0x00000800 41#define HOSTAPD_CHAN_VHT_30_50 0x00001000 42#define HOSTAPD_CHAN_VHT_50_30 0x00002000 43#define HOSTAPD_CHAN_VHT_70_10 0x00004000 44 45enum reg_change_initiator { 46 REGDOM_SET_BY_CORE, 47 REGDOM_SET_BY_USER, 48 REGDOM_SET_BY_DRIVER, 49 REGDOM_SET_BY_COUNTRY_IE, 50 REGDOM_BEACON_HINT, 51}; 52 53enum reg_type { 54 REGDOM_TYPE_UNKNOWN, 55 REGDOM_TYPE_COUNTRY, 56 REGDOM_TYPE_WORLD, 57 REGDOM_TYPE_CUSTOM_WORLD, 58 REGDOM_TYPE_INTERSECTION, 59}; 60 61/** 62 * struct hostapd_channel_data - Channel information 63 */ 64struct hostapd_channel_data { 65 /** 66 * chan - Channel number (IEEE 802.11) 67 */ 68 short chan; 69 70 /** 71 * freq - Frequency in MHz 72 */ 73 int freq; 74 75 /** 76 * flag - Channel flags (HOSTAPD_CHAN_*) 77 */ 78 int flag; 79 80 /** 81 * max_tx_power - Regulatory transmit power limit in dBm 82 */ 83 u8 max_tx_power; 84 85 /* 86 * survey_list - Linked list of surveys 87 */ 88 struct dl_list survey_list; 89 90 /** 91 * min_nf - Minimum observed noise floor, in dBm, based on all 92 * surveyed channel data 93 */ 94 s8 min_nf; 95 96#ifdef CONFIG_ACS 97 /** 98 * interference_factor - Computed interference factor on this 99 * channel (used internally in src/ap/acs.c; driver wrappers do not 100 * need to set this) 101 */ 102 long double interference_factor; 103#endif /* CONFIG_ACS */ 104 105 /* DFS CAC time in milliseconds */ 106 unsigned int dfs_cac_ms; 107}; 108 109#define HOSTAPD_MODE_FLAG_HT_INFO_KNOWN BIT(0) 110#define HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN BIT(1) 111 112/** 113 * struct hostapd_hw_modes - Supported hardware mode information 114 */ 115struct hostapd_hw_modes { 116 /** 117 * mode - Hardware mode 118 */ 119 enum hostapd_hw_mode mode; 120 121 /** 122 * num_channels - Number of entries in the channels array 123 */ 124 int num_channels; 125 126 /** 127 * channels - Array of supported channels 128 */ 129 struct hostapd_channel_data *channels; 130 131 /** 132 * num_rates - Number of entries in the rates array 133 */ 134 int num_rates; 135 136 /** 137 * rates - Array of supported rates in 100 kbps units 138 */ 139 int *rates; 140 141 /** 142 * ht_capab - HT (IEEE 802.11n) capabilities 143 */ 144 u16 ht_capab; 145 146 /** 147 * mcs_set - MCS (IEEE 802.11n) rate parameters 148 */ 149 u8 mcs_set[16]; 150 151 /** 152 * a_mpdu_params - A-MPDU (IEEE 802.11n) parameters 153 */ 154 u8 a_mpdu_params; 155 156 /** 157 * vht_capab - VHT (IEEE 802.11ac) capabilities 158 */ 159 u32 vht_capab; 160 161 /** 162 * vht_mcs_set - VHT MCS (IEEE 802.11ac) rate parameters 163 */ 164 u8 vht_mcs_set[8]; 165 166 unsigned int flags; /* HOSTAPD_MODE_FLAG_* */ 167}; 168 169 170#define IEEE80211_MODE_INFRA 0 171#define IEEE80211_MODE_IBSS 1 172#define IEEE80211_MODE_AP 2 173 174#define IEEE80211_CAP_ESS 0x0001 175#define IEEE80211_CAP_IBSS 0x0002 176#define IEEE80211_CAP_PRIVACY 0x0010 177 178/* DMG (60 GHz) IEEE 802.11ad */ 179/* type - bits 0..1 */ 180#define IEEE80211_CAP_DMG_MASK 0x0003 181#define IEEE80211_CAP_DMG_IBSS 0x0001 /* Tx by: STA */ 182#define IEEE80211_CAP_DMG_PBSS 0x0002 /* Tx by: PCP */ 183#define IEEE80211_CAP_DMG_AP 0x0003 /* Tx by: AP */ 184 185#define WPA_SCAN_QUAL_INVALID BIT(0) 186#define WPA_SCAN_NOISE_INVALID BIT(1) 187#define WPA_SCAN_LEVEL_INVALID BIT(2) 188#define WPA_SCAN_LEVEL_DBM BIT(3) 189#define WPA_SCAN_AUTHENTICATED BIT(4) 190#define WPA_SCAN_ASSOCIATED BIT(5) 191 192/** 193 * struct wpa_scan_res - Scan result for an BSS/IBSS 194 * @flags: information flags about the BSS/IBSS (WPA_SCAN_*) 195 * @bssid: BSSID 196 * @freq: frequency of the channel in MHz (e.g., 2412 = channel 1) 197 * @beacon_int: beacon interval in TUs (host byte order) 198 * @caps: capability information field in host byte order 199 * @qual: signal quality 200 * @noise: noise level 201 * @level: signal level 202 * @tsf: Timestamp 203 * @age: Age of the information in milliseconds (i.e., how many milliseconds 204 * ago the last Beacon or Probe Response frame was received) 205 * @ie_len: length of the following IE field in octets 206 * @beacon_ie_len: length of the following Beacon IE field in octets 207 * 208 * This structure is used as a generic format for scan results from the 209 * driver. Each driver interface implementation is responsible for converting 210 * the driver or OS specific scan results into this format. 211 * 212 * If the driver does not support reporting all IEs, the IE data structure is 213 * constructed of the IEs that are available. This field will also need to 214 * include SSID in IE format. All drivers are encouraged to be extended to 215 * report all IEs to make it easier to support future additions. 216 */ 217struct wpa_scan_res { 218 unsigned int flags; 219 u8 bssid[ETH_ALEN]; 220 int freq; 221 u16 beacon_int; 222 u16 caps; 223 int qual; 224 int noise; 225 int level; 226 u64 tsf; 227 unsigned int age; 228 size_t ie_len; 229 size_t beacon_ie_len; 230 /* 231 * Followed by ie_len octets of IEs from Probe Response frame (or if 232 * the driver does not indicate source of IEs, these may also be from 233 * Beacon frame). After the first set of IEs, another set of IEs may 234 * follow (with beacon_ie_len octets of data) if the driver provides 235 * both IE sets. 236 */ 237}; 238 239/** 240 * struct wpa_scan_results - Scan results 241 * @res: Array of pointers to allocated variable length scan result entries 242 * @num: Number of entries in the scan result array 243 * @fetch_time: Time when the results were fetched from the driver 244 */ 245struct wpa_scan_results { 246 struct wpa_scan_res **res; 247 size_t num; 248 struct os_reltime fetch_time; 249}; 250 251/** 252 * struct wpa_interface_info - Network interface information 253 * @next: Pointer to the next interface or NULL if this is the last one 254 * @ifname: Interface name that can be used with init() or init2() 255 * @desc: Human readable adapter description (e.g., vendor/model) or NULL if 256 * not available 257 * @drv_name: struct wpa_driver_ops::name (note: unlike other strings, this one 258 * is not an allocated copy, i.e., get_interfaces() caller will not free 259 * this) 260 */ 261struct wpa_interface_info { 262 struct wpa_interface_info *next; 263 char *ifname; 264 char *desc; 265 const char *drv_name; 266}; 267 268#define WPAS_MAX_SCAN_SSIDS 16 269 270/** 271 * struct wpa_driver_scan_params - Scan parameters 272 * Data for struct wpa_driver_ops::scan2(). 273 */ 274struct wpa_driver_scan_params { 275 /** 276 * ssids - SSIDs to scan for 277 */ 278 struct wpa_driver_scan_ssid { 279 /** 280 * ssid - specific SSID to scan for (ProbeReq) 281 * %NULL or zero-length SSID is used to indicate active scan 282 * with wildcard SSID. 283 */ 284 const u8 *ssid; 285 /** 286 * ssid_len: Length of the SSID in octets 287 */ 288 size_t ssid_len; 289 } ssids[WPAS_MAX_SCAN_SSIDS]; 290 291 /** 292 * num_ssids - Number of entries in ssids array 293 * Zero indicates a request for a passive scan. 294 */ 295 size_t num_ssids; 296 297 /** 298 * extra_ies - Extra IE(s) to add into Probe Request or %NULL 299 */ 300 const u8 *extra_ies; 301 302 /** 303 * extra_ies_len - Length of extra_ies in octets 304 */ 305 size_t extra_ies_len; 306 307 /** 308 * freqs - Array of frequencies to scan or %NULL for all frequencies 309 * 310 * The frequency is set in MHz. The array is zero-terminated. 311 */ 312 int *freqs; 313 314 /** 315 * filter_ssids - Filter for reporting SSIDs 316 * 317 * This optional parameter can be used to request the driver wrapper to 318 * filter scan results to include only the specified SSIDs. %NULL 319 * indicates that no filtering is to be done. This can be used to 320 * reduce memory needs for scan results in environments that have large 321 * number of APs with different SSIDs. 322 * 323 * The driver wrapper is allowed to take this allocated buffer into its 324 * own use by setting the pointer to %NULL. In that case, the driver 325 * wrapper is responsible for freeing the buffer with os_free() once it 326 * is not needed anymore. 327 */ 328 struct wpa_driver_scan_filter { 329 u8 ssid[32]; 330 size_t ssid_len; 331 } *filter_ssids; 332 333 /** 334 * num_filter_ssids - Number of entries in filter_ssids array 335 */ 336 size_t num_filter_ssids; 337 338 /** 339 * filter_rssi - Filter by RSSI 340 * 341 * The driver may filter scan results in firmware to reduce host 342 * wakeups and thereby save power. Specify the RSSI threshold in s32 343 * dBm. 344 */ 345 s32 filter_rssi; 346 347 /** 348 * p2p_probe - Used to disable CCK (802.11b) rates for P2P probes 349 * 350 * When set, the driver is expected to remove rates 1, 2, 5.5, and 11 351 * Mbps from the support rates element(s) in the Probe Request frames 352 * and not to transmit the frames at any of those rates. 353 */ 354 u8 p2p_probe; 355 356 /** 357 * only_new_results - Request driver to report only new results 358 * 359 * This is used to request the driver to report only BSSes that have 360 * been detected after this scan request has been started, i.e., to 361 * flush old cached BSS entries. 362 */ 363 int only_new_results; 364 365 /* 366 * NOTE: Whenever adding new parameters here, please make sure 367 * wpa_scan_clone_params() and wpa_scan_free_params() get updated with 368 * matching changes. 369 */ 370}; 371 372/** 373 * struct wpa_driver_auth_params - Authentication parameters 374 * Data for struct wpa_driver_ops::authenticate(). 375 */ 376struct wpa_driver_auth_params { 377 int freq; 378 const u8 *bssid; 379 const u8 *ssid; 380 size_t ssid_len; 381 int auth_alg; 382 const u8 *ie; 383 size_t ie_len; 384 const u8 *wep_key[4]; 385 size_t wep_key_len[4]; 386 int wep_tx_keyidx; 387 int local_state_change; 388 389 /** 390 * p2p - Whether this connection is a P2P group 391 */ 392 int p2p; 393 394 const u8 *sae_data; 395 size_t sae_data_len; 396 397}; 398 399enum wps_mode { 400 WPS_MODE_NONE /* no WPS provisioning being used */, 401 WPS_MODE_OPEN /* WPS provisioning with AP that is in open mode */, 402 WPS_MODE_PRIVACY /* WPS provisioning with AP that is using protection 403 */ 404}; 405 406/** 407 * struct wpa_driver_associate_params - Association parameters 408 * Data for struct wpa_driver_ops::associate(). 409 */ 410struct wpa_driver_associate_params { 411 /** 412 * bssid - BSSID of the selected AP 413 * This can be %NULL, if ap_scan=2 mode is used and the driver is 414 * responsible for selecting with which BSS to associate. */ 415 const u8 *bssid; 416 417 /** 418 * bssid_hint - BSSID of a proposed AP 419 * 420 * This indicates which BSS has been found a suitable candidate for 421 * initial association for drivers that use driver/firmwate-based BSS 422 * selection. Unlike the @bssid parameter, @bssid_hint does not limit 423 * the driver from selecting other BSSes in the ESS. 424 */ 425 const u8 *bssid_hint; 426 427 /** 428 * ssid - The selected SSID 429 */ 430 const u8 *ssid; 431 432 /** 433 * ssid_len - Length of the SSID (1..32) 434 */ 435 size_t ssid_len; 436 437 /** 438 * freq - Frequency of the channel the selected AP is using 439 * Frequency that the selected AP is using (in MHz as 440 * reported in the scan results) 441 */ 442 int freq; 443 444 /** 445 * freq_hint - Frequency of the channel the proposed AP is using 446 * 447 * This provides a channel on which a suitable BSS has been found as a 448 * hint for the driver. Unlike the @freq parameter, @freq_hint does not 449 * limit the driver from selecting other channels for 450 * driver/firmware-based BSS selection. 451 */ 452 int freq_hint; 453 454 /** 455 * bg_scan_period - Background scan period in seconds, 0 to disable 456 * background scan, or -1 to indicate no change to default driver 457 * configuration 458 */ 459 int bg_scan_period; 460 461 /** 462 * beacon_int - Beacon interval for IBSS or 0 to use driver default 463 */ 464 int beacon_int; 465 466 /** 467 * wpa_ie - WPA information element for (Re)Association Request 468 * WPA information element to be included in (Re)Association 469 * Request (including information element id and length). Use 470 * of this WPA IE is optional. If the driver generates the WPA 471 * IE, it can use pairwise_suite, group_suite, and 472 * key_mgmt_suite to select proper algorithms. In this case, 473 * the driver has to notify wpa_supplicant about the used WPA 474 * IE by generating an event that the interface code will 475 * convert into EVENT_ASSOCINFO data (see below). 476 * 477 * When using WPA2/IEEE 802.11i, wpa_ie is used for RSN IE 478 * instead. The driver can determine which version is used by 479 * looking at the first byte of the IE (0xdd for WPA, 0x30 for 480 * WPA2/RSN). 481 * 482 * When using WPS, wpa_ie is used for WPS IE instead of WPA/RSN IE. 483 */ 484 const u8 *wpa_ie; 485 486 /** 487 * wpa_ie_len - length of the wpa_ie 488 */ 489 size_t wpa_ie_len; 490 491 /** 492 * wpa_proto - Bitfield of WPA_PROTO_* values to indicate WPA/WPA2 493 */ 494 unsigned int wpa_proto; 495 496 /** 497 * pairwise_suite - Selected pairwise cipher suite (WPA_CIPHER_*) 498 * 499 * This is usually ignored if @wpa_ie is used. 500 */ 501 unsigned int pairwise_suite; 502 503 /** 504 * group_suite - Selected group cipher suite (WPA_CIPHER_*) 505 * 506 * This is usually ignored if @wpa_ie is used. 507 */ 508 unsigned int group_suite; 509 510 /** 511 * key_mgmt_suite - Selected key management suite (WPA_KEY_MGMT_*) 512 * 513 * This is usually ignored if @wpa_ie is used. 514 */ 515 unsigned int key_mgmt_suite; 516 517 /** 518 * auth_alg - Allowed authentication algorithms 519 * Bit field of WPA_AUTH_ALG_* 520 */ 521 int auth_alg; 522 523 /** 524 * mode - Operation mode (infra/ibss) IEEE80211_MODE_* 525 */ 526 int mode; 527 528 /** 529 * wep_key - WEP keys for static WEP configuration 530 */ 531 const u8 *wep_key[4]; 532 533 /** 534 * wep_key_len - WEP key length for static WEP configuration 535 */ 536 size_t wep_key_len[4]; 537 538 /** 539 * wep_tx_keyidx - WEP TX key index for static WEP configuration 540 */ 541 int wep_tx_keyidx; 542 543 /** 544 * mgmt_frame_protection - IEEE 802.11w management frame protection 545 */ 546 enum mfp_options mgmt_frame_protection; 547 548 /** 549 * ft_ies - IEEE 802.11r / FT information elements 550 * If the supplicant is using IEEE 802.11r (FT) and has the needed keys 551 * for fast transition, this parameter is set to include the IEs that 552 * are to be sent in the next FT Authentication Request message. 553 * update_ft_ies() handler is called to update the IEs for further 554 * FT messages in the sequence. 555 * 556 * The driver should use these IEs only if the target AP is advertising 557 * the same mobility domain as the one included in the MDIE here. 558 * 559 * In ap_scan=2 mode, the driver can use these IEs when moving to a new 560 * AP after the initial association. These IEs can only be used if the 561 * target AP is advertising support for FT and is using the same MDIE 562 * and SSID as the current AP. 563 * 564 * The driver is responsible for reporting the FT IEs received from the 565 * AP's response using wpa_supplicant_event() with EVENT_FT_RESPONSE 566 * type. update_ft_ies() handler will then be called with the FT IEs to 567 * include in the next frame in the authentication sequence. 568 */ 569 const u8 *ft_ies; 570 571 /** 572 * ft_ies_len - Length of ft_ies in bytes 573 */ 574 size_t ft_ies_len; 575 576 /** 577 * ft_md - FT Mobility domain (6 octets) (also included inside ft_ies) 578 * 579 * This value is provided to allow the driver interface easier access 580 * to the current mobility domain. This value is set to %NULL if no 581 * mobility domain is currently active. 582 */ 583 const u8 *ft_md; 584 585 /** 586 * passphrase - RSN passphrase for PSK 587 * 588 * This value is made available only for WPA/WPA2-Personal (PSK) and 589 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is 590 * the 8..63 character ASCII passphrase, if available. Please note that 591 * this can be %NULL if passphrase was not used to generate the PSK. In 592 * that case, the psk field must be used to fetch the PSK. 593 */ 594 const char *passphrase; 595 596 /** 597 * psk - RSN PSK (alternative for passphrase for PSK) 598 * 599 * This value is made available only for WPA/WPA2-Personal (PSK) and 600 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is 601 * the 32-octet (256-bit) PSK, if available. The driver wrapper should 602 * be prepared to handle %NULL value as an error. 603 */ 604 const u8 *psk; 605 606 /** 607 * drop_unencrypted - Enable/disable unencrypted frame filtering 608 * 609 * Configure the driver to drop all non-EAPOL frames (both receive and 610 * transmit paths). Unencrypted EAPOL frames (ethertype 0x888e) must 611 * still be allowed for key negotiation. 612 */ 613 int drop_unencrypted; 614 615 /** 616 * prev_bssid - Previously used BSSID in this ESS 617 * 618 * When not %NULL, this is a request to use reassociation instead of 619 * association. 620 */ 621 const u8 *prev_bssid; 622 623 /** 624 * wps - WPS mode 625 * 626 * If the driver needs to do special configuration for WPS association, 627 * this variable provides more information on what type of association 628 * is being requested. Most drivers should not need ot use this. 629 */ 630 enum wps_mode wps; 631 632 /** 633 * p2p - Whether this connection is a P2P group 634 */ 635 int p2p; 636 637 /** 638 * uapsd - UAPSD parameters for the network 639 * -1 = do not change defaults 640 * AP mode: 1 = enabled, 0 = disabled 641 * STA mode: bits 0..3 UAPSD enabled for VO,VI,BK,BE 642 */ 643 int uapsd; 644 645 /** 646 * fixed_bssid - Whether to force this BSSID in IBSS mode 647 * 1 = Fix this BSSID and prevent merges. 648 * 0 = Do not fix BSSID. 649 */ 650 int fixed_bssid; 651 652 /** 653 * disable_ht - Disable HT (IEEE 802.11n) for this connection 654 */ 655 int disable_ht; 656 657 /** 658 * HT Capabilities over-rides. Only bits set in the mask will be used, 659 * and not all values are used by the kernel anyway. Currently, MCS, 660 * MPDU and MSDU fields are used. 661 */ 662 const u8 *htcaps; /* struct ieee80211_ht_capabilities * */ 663 const u8 *htcaps_mask; /* struct ieee80211_ht_capabilities * */ 664 665#ifdef CONFIG_VHT_OVERRIDES 666 /** 667 * disable_vht - Disable VHT for this connection 668 */ 669 int disable_vht; 670 671 /** 672 * VHT capability overrides. 673 */ 674 const struct ieee80211_vht_capabilities *vhtcaps; 675 const struct ieee80211_vht_capabilities *vhtcaps_mask; 676#endif /* CONFIG_VHT_OVERRIDES */ 677}; 678 679enum hide_ssid { 680 NO_SSID_HIDING, 681 HIDDEN_SSID_ZERO_LEN, 682 HIDDEN_SSID_ZERO_CONTENTS 683}; 684 685struct wpa_driver_ap_params { 686 /** 687 * head - Beacon head from IEEE 802.11 header to IEs before TIM IE 688 */ 689 u8 *head; 690 691 /** 692 * head_len - Length of the head buffer in octets 693 */ 694 size_t head_len; 695 696 /** 697 * tail - Beacon tail following TIM IE 698 */ 699 u8 *tail; 700 701 /** 702 * tail_len - Length of the tail buffer in octets 703 */ 704 size_t tail_len; 705 706 /** 707 * dtim_period - DTIM period 708 */ 709 int dtim_period; 710 711 /** 712 * beacon_int - Beacon interval 713 */ 714 int beacon_int; 715 716 /** 717 * basic_rates: -1 terminated array of basic rates in 100 kbps 718 * 719 * This parameter can be used to set a specific basic rate set for the 720 * BSS. If %NULL, default basic rate set is used. 721 */ 722 int *basic_rates; 723 724 /** 725 * proberesp - Probe Response template 726 * 727 * This is used by drivers that reply to Probe Requests internally in 728 * AP mode and require the full Probe Response template. 729 */ 730 u8 *proberesp; 731 732 /** 733 * proberesp_len - Length of the proberesp buffer in octets 734 */ 735 size_t proberesp_len; 736 737 /** 738 * ssid - The SSID to use in Beacon/Probe Response frames 739 */ 740 const u8 *ssid; 741 742 /** 743 * ssid_len - Length of the SSID (1..32) 744 */ 745 size_t ssid_len; 746 747 /** 748 * hide_ssid - Whether to hide the SSID 749 */ 750 enum hide_ssid hide_ssid; 751 752 /** 753 * pairwise_ciphers - WPA_CIPHER_* bitfield 754 */ 755 unsigned int pairwise_ciphers; 756 757 /** 758 * group_cipher - WPA_CIPHER_* 759 */ 760 unsigned int group_cipher; 761 762 /** 763 * key_mgmt_suites - WPA_KEY_MGMT_* bitfield 764 */ 765 unsigned int key_mgmt_suites; 766 767 /** 768 * auth_algs - WPA_AUTH_ALG_* bitfield 769 */ 770 unsigned int auth_algs; 771 772 /** 773 * wpa_version - WPA_PROTO_* bitfield 774 */ 775 unsigned int wpa_version; 776 777 /** 778 * privacy - Whether privacy is used in the BSS 779 */ 780 int privacy; 781 782 /** 783 * beacon_ies - WPS/P2P IE(s) for Beacon frames 784 * 785 * This is used to add IEs like WPS IE and P2P IE by drivers that do 786 * not use the full Beacon template. 787 */ 788 const struct wpabuf *beacon_ies; 789 790 /** 791 * proberesp_ies - P2P/WPS IE(s) for Probe Response frames 792 * 793 * This is used to add IEs like WPS IE and P2P IE by drivers that 794 * reply to Probe Request frames internally. 795 */ 796 const struct wpabuf *proberesp_ies; 797 798 /** 799 * assocresp_ies - WPS IE(s) for (Re)Association Response frames 800 * 801 * This is used to add IEs like WPS IE by drivers that reply to 802 * (Re)Association Request frames internally. 803 */ 804 const struct wpabuf *assocresp_ies; 805 806 /** 807 * isolate - Whether to isolate frames between associated stations 808 * 809 * If this is non-zero, the AP is requested to disable forwarding of 810 * frames between associated stations. 811 */ 812 int isolate; 813 814 /** 815 * cts_protect - Whether CTS protection is enabled 816 */ 817 int cts_protect; 818 819 /** 820 * preamble - Whether short preamble is enabled 821 */ 822 int preamble; 823 824 /** 825 * short_slot_time - Whether short slot time is enabled 826 * 827 * 0 = short slot time disable, 1 = short slot time enabled, -1 = do 828 * not set (e.g., when 802.11g mode is not in use) 829 */ 830 int short_slot_time; 831 832 /** 833 * ht_opmode - HT operation mode or -1 if HT not in use 834 */ 835 int ht_opmode; 836 837 /** 838 * interworking - Whether Interworking is enabled 839 */ 840 int interworking; 841 842 /** 843 * hessid - Homogeneous ESS identifier or %NULL if not set 844 */ 845 const u8 *hessid; 846 847 /** 848 * access_network_type - Access Network Type (0..15) 849 * 850 * This is used for filtering Probe Request frames when Interworking is 851 * enabled. 852 */ 853 u8 access_network_type; 854 855 /** 856 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity 857 * 858 * This is used by driver which advertises this capability. 859 */ 860 int ap_max_inactivity; 861 862 /** 863 * disable_dgaf - Whether group-addressed frames are disabled 864 */ 865 int disable_dgaf; 866 867 /** 868 * osen - Whether OSEN security is enabled 869 */ 870 int osen; 871 872 /** 873 * freq - Channel parameters for dynamic bandwidth changes 874 */ 875 struct hostapd_freq_params *freq; 876}; 877 878/** 879 * struct wpa_driver_capa - Driver capability information 880 */ 881struct wpa_driver_capa { 882#define WPA_DRIVER_CAPA_KEY_MGMT_WPA 0x00000001 883#define WPA_DRIVER_CAPA_KEY_MGMT_WPA2 0x00000002 884#define WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK 0x00000004 885#define WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK 0x00000008 886#define WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE 0x00000010 887#define WPA_DRIVER_CAPA_KEY_MGMT_FT 0x00000020 888#define WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK 0x00000040 889#define WPA_DRIVER_CAPA_KEY_MGMT_WAPI_PSK 0x00000080 890 unsigned int key_mgmt; 891 892#define WPA_DRIVER_CAPA_ENC_WEP40 0x00000001 893#define WPA_DRIVER_CAPA_ENC_WEP104 0x00000002 894#define WPA_DRIVER_CAPA_ENC_TKIP 0x00000004 895#define WPA_DRIVER_CAPA_ENC_CCMP 0x00000008 896#define WPA_DRIVER_CAPA_ENC_WEP128 0x00000010 897#define WPA_DRIVER_CAPA_ENC_GCMP 0x00000020 898#define WPA_DRIVER_CAPA_ENC_GCMP_256 0x00000040 899#define WPA_DRIVER_CAPA_ENC_CCMP_256 0x00000080 900#define WPA_DRIVER_CAPA_ENC_BIP 0x00000100 901#define WPA_DRIVER_CAPA_ENC_BIP_GMAC_128 0x00000200 902#define WPA_DRIVER_CAPA_ENC_BIP_GMAC_256 0x00000400 903#define WPA_DRIVER_CAPA_ENC_BIP_CMAC_256 0x00000800 904#define WPA_DRIVER_CAPA_ENC_GTK_NOT_USED 0x00001000 905 unsigned int enc; 906 907#define WPA_DRIVER_AUTH_OPEN 0x00000001 908#define WPA_DRIVER_AUTH_SHARED 0x00000002 909#define WPA_DRIVER_AUTH_LEAP 0x00000004 910 unsigned int auth; 911 912/* Driver generated WPA/RSN IE */ 913#define WPA_DRIVER_FLAGS_DRIVER_IE 0x00000001 914/* Driver needs static WEP key setup after association command */ 915#define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC 0x00000002 916/* Driver takes care of all DFS operations */ 917#define WPA_DRIVER_FLAGS_DFS_OFFLOAD 0x00000004 918/* Driver takes care of RSN 4-way handshake internally; PMK is configured with 919 * struct wpa_driver_ops::set_key using alg = WPA_ALG_PMK */ 920#define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE 0x00000008 921#define WPA_DRIVER_FLAGS_WIRED 0x00000010 922/* Driver provides separate commands for authentication and association (SME in 923 * wpa_supplicant). */ 924#define WPA_DRIVER_FLAGS_SME 0x00000020 925/* Driver supports AP mode */ 926#define WPA_DRIVER_FLAGS_AP 0x00000040 927/* Driver needs static WEP key setup after association has been completed */ 928#define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE 0x00000080 929/* Driver supports dynamic HT 20/40 MHz channel changes during BSS lifetime */ 930#define WPA_DRIVER_FLAGS_HT_2040_COEX 0x00000100 931/* Driver supports concurrent P2P operations */ 932#define WPA_DRIVER_FLAGS_P2P_CONCURRENT 0x00000200 933/* 934 * Driver uses the initial interface as a dedicated management interface, i.e., 935 * it cannot be used for P2P group operations or non-P2P purposes. 936 */ 937#define WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE 0x00000400 938/* This interface is P2P capable (P2P GO or P2P Client) */ 939#define WPA_DRIVER_FLAGS_P2P_CAPABLE 0x00000800 940/* Driver supports station and key removal when stopping an AP */ 941#define WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT 0x00001000 942/* 943 * Driver uses the initial interface for P2P management interface and non-P2P 944 * purposes (e.g., connect to infra AP), but this interface cannot be used for 945 * P2P group operations. 946 */ 947#define WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P 0x00002000 948/* 949 * Driver is known to use sane error codes, i.e., when it indicates that 950 * something (e.g., association) fails, there was indeed a failure and the 951 * operation does not end up getting completed successfully later. 952 */ 953#define WPA_DRIVER_FLAGS_SANE_ERROR_CODES 0x00004000 954/* Driver supports off-channel TX */ 955#define WPA_DRIVER_FLAGS_OFFCHANNEL_TX 0x00008000 956/* Driver indicates TX status events for EAPOL Data frames */ 957#define WPA_DRIVER_FLAGS_EAPOL_TX_STATUS 0x00010000 958/* Driver indicates TX status events for Deauth/Disassoc frames */ 959#define WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS 0x00020000 960/* Driver supports roaming (BSS selection) in firmware */ 961#define WPA_DRIVER_FLAGS_BSS_SELECTION 0x00040000 962/* Driver supports operating as a TDLS peer */ 963#define WPA_DRIVER_FLAGS_TDLS_SUPPORT 0x00080000 964/* Driver requires external TDLS setup/teardown/discovery */ 965#define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000 966/* Driver indicates support for Probe Response offloading in AP mode */ 967#define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000 968/* Driver supports U-APSD in AP mode */ 969#define WPA_DRIVER_FLAGS_AP_UAPSD 0x00400000 970/* Driver supports inactivity timer in AP mode */ 971#define WPA_DRIVER_FLAGS_INACTIVITY_TIMER 0x00800000 972/* Driver expects user space implementation of MLME in AP mode */ 973#define WPA_DRIVER_FLAGS_AP_MLME 0x01000000 974/* Driver supports SAE with user space SME */ 975#define WPA_DRIVER_FLAGS_SAE 0x02000000 976/* Driver makes use of OBSS scan mechanism in wpa_supplicant */ 977#define WPA_DRIVER_FLAGS_OBSS_SCAN 0x04000000 978/* Driver supports IBSS (Ad-hoc) mode */ 979#define WPA_DRIVER_FLAGS_IBSS 0x08000000 980/* Driver supports radar detection */ 981#define WPA_DRIVER_FLAGS_RADAR 0x10000000 982/* Driver supports a dedicated interface for P2P Device */ 983#define WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE 0x20000000 984/* Driver supports QoS Mapping */ 985#define WPA_DRIVER_FLAGS_QOS_MAPPING 0x40000000 986/* Driver supports CSA in AP mode */ 987#define WPA_DRIVER_FLAGS_AP_CSA 0x80000000 988 unsigned int flags; 989 990 int max_scan_ssids; 991 int max_sched_scan_ssids; 992 int sched_scan_supported; 993 int max_match_sets; 994 995 /** 996 * max_remain_on_chan - Maximum remain-on-channel duration in msec 997 */ 998 unsigned int max_remain_on_chan; 999 1000 /** 1001 * max_stations - Maximum number of associated stations the driver 1002 * supports in AP mode 1003 */ 1004 unsigned int max_stations; 1005 1006 /** 1007 * probe_resp_offloads - Bitmap of supported protocols by the driver 1008 * for Probe Response offloading. 1009 */ 1010/* Driver Probe Response offloading support for WPS ver. 1 */ 1011#define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS 0x00000001 1012/* Driver Probe Response offloading support for WPS ver. 2 */ 1013#define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2 0x00000002 1014/* Driver Probe Response offloading support for P2P */ 1015#define WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P 0x00000004 1016/* Driver Probe Response offloading support for IEEE 802.11u (Interworking) */ 1017#define WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING 0x00000008 1018 unsigned int probe_resp_offloads; 1019 1020 unsigned int max_acl_mac_addrs; 1021 1022 /** 1023 * Number of supported concurrent channels 1024 */ 1025 unsigned int num_multichan_concurrent; 1026 1027 /** 1028 * extended_capa - extended capabilities in driver/device 1029 * 1030 * Must be allocated and freed by driver and the pointers must be 1031 * valid for the lifetime of the driver, i.e., freed in deinit() 1032 */ 1033 const u8 *extended_capa, *extended_capa_mask; 1034 unsigned int extended_capa_len; 1035}; 1036 1037 1038struct hostapd_data; 1039 1040struct hostap_sta_driver_data { 1041 unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes; 1042 unsigned long current_tx_rate; 1043 unsigned long inactive_msec; 1044 unsigned long flags; 1045 unsigned long num_ps_buf_frames; 1046 unsigned long tx_retry_failed; 1047 unsigned long tx_retry_count; 1048 int last_rssi; 1049 int last_ack_rssi; 1050}; 1051 1052struct hostapd_sta_add_params { 1053 const u8 *addr; 1054 u16 aid; 1055 u16 capability; 1056 const u8 *supp_rates; 1057 size_t supp_rates_len; 1058 u16 listen_interval; 1059 const struct ieee80211_ht_capabilities *ht_capabilities; 1060 const struct ieee80211_vht_capabilities *vht_capabilities; 1061 int vht_opmode_enabled; 1062 u8 vht_opmode; 1063 u32 flags; /* bitmask of WPA_STA_* flags */ 1064 int set; /* Set STA parameters instead of add */ 1065 u8 qosinfo; 1066 const u8 *ext_capab; 1067 size_t ext_capab_len; 1068 const u8 *supp_channels; 1069 size_t supp_channels_len; 1070 const u8 *supp_oper_classes; 1071 size_t supp_oper_classes_len; 1072}; 1073 1074struct hostapd_freq_params { 1075 int mode; 1076 int freq; 1077 int channel; 1078 /* for HT */ 1079 int ht_enabled; 1080 int sec_channel_offset; /* 0 = HT40 disabled, -1 = HT40 enabled, 1081 * secondary channel below primary, 1 = HT40 1082 * enabled, secondary channel above primary */ 1083 1084 /* for VHT */ 1085 int vht_enabled; 1086 1087 /* valid for both HT and VHT, center_freq2 is non-zero 1088 * only for bandwidth 80 and an 80+80 channel */ 1089 int center_freq1, center_freq2; 1090 int bandwidth; 1091}; 1092 1093struct mac_address { 1094 u8 addr[ETH_ALEN]; 1095}; 1096 1097struct hostapd_acl_params { 1098 u8 acl_policy; 1099 unsigned int num_mac_acl; 1100 struct mac_address mac_acl[0]; 1101}; 1102 1103enum wpa_driver_if_type { 1104 /** 1105 * WPA_IF_STATION - Station mode interface 1106 */ 1107 WPA_IF_STATION, 1108 1109 /** 1110 * WPA_IF_AP_VLAN - AP mode VLAN interface 1111 * 1112 * This interface shares its address and Beacon frame with the main 1113 * BSS. 1114 */ 1115 WPA_IF_AP_VLAN, 1116 1117 /** 1118 * WPA_IF_AP_BSS - AP mode BSS interface 1119 * 1120 * This interface has its own address and Beacon frame. 1121 */ 1122 WPA_IF_AP_BSS, 1123 1124 /** 1125 * WPA_IF_P2P_GO - P2P Group Owner 1126 */ 1127 WPA_IF_P2P_GO, 1128 1129 /** 1130 * WPA_IF_P2P_CLIENT - P2P Client 1131 */ 1132 WPA_IF_P2P_CLIENT, 1133 1134 /** 1135 * WPA_IF_P2P_GROUP - P2P Group interface (will become either 1136 * WPA_IF_P2P_GO or WPA_IF_P2P_CLIENT, but the role is not yet known) 1137 */ 1138 WPA_IF_P2P_GROUP, 1139 1140 /** 1141 * WPA_IF_P2P_DEVICE - P2P Device interface is used to indentify the 1142 * abstracted P2P Device function in the driver 1143 */ 1144 WPA_IF_P2P_DEVICE 1145}; 1146 1147struct wpa_init_params { 1148 void *global_priv; 1149 const u8 *bssid; 1150 const char *ifname; 1151 const u8 *ssid; 1152 size_t ssid_len; 1153 const char *test_socket; 1154 int use_pae_group_addr; 1155 char **bridge; 1156 size_t num_bridge; 1157 1158 u8 *own_addr; /* buffer for writing own MAC address */ 1159}; 1160 1161 1162struct wpa_bss_params { 1163 /** Interface name (for multi-SSID/VLAN support) */ 1164 const char *ifname; 1165 /** Whether IEEE 802.1X or WPA/WPA2 is enabled */ 1166 int enabled; 1167 1168 int wpa; 1169 int ieee802_1x; 1170 int wpa_group; 1171 int wpa_pairwise; 1172 int wpa_key_mgmt; 1173 int rsn_preauth; 1174 enum mfp_options ieee80211w; 1175}; 1176 1177#define WPA_STA_AUTHORIZED BIT(0) 1178#define WPA_STA_WMM BIT(1) 1179#define WPA_STA_SHORT_PREAMBLE BIT(2) 1180#define WPA_STA_MFP BIT(3) 1181#define WPA_STA_TDLS_PEER BIT(4) 1182 1183enum tdls_oper { 1184 TDLS_DISCOVERY_REQ, 1185 TDLS_SETUP, 1186 TDLS_TEARDOWN, 1187 TDLS_ENABLE_LINK, 1188 TDLS_DISABLE_LINK, 1189 TDLS_ENABLE, 1190 TDLS_DISABLE 1191}; 1192 1193enum wnm_oper { 1194 WNM_SLEEP_ENTER_CONFIRM, 1195 WNM_SLEEP_ENTER_FAIL, 1196 WNM_SLEEP_EXIT_CONFIRM, 1197 WNM_SLEEP_EXIT_FAIL, 1198 WNM_SLEEP_TFS_REQ_IE_ADD, /* STA requests driver to add TFS req IE */ 1199 WNM_SLEEP_TFS_REQ_IE_NONE, /* STA requests empty TFS req IE */ 1200 WNM_SLEEP_TFS_REQ_IE_SET, /* AP requests driver to set TFS req IE for 1201 * a STA */ 1202 WNM_SLEEP_TFS_RESP_IE_ADD, /* AP requests driver to add TFS resp IE 1203 * for a STA */ 1204 WNM_SLEEP_TFS_RESP_IE_NONE, /* AP requests empty TFS resp IE */ 1205 WNM_SLEEP_TFS_RESP_IE_SET, /* AP requests driver to set TFS resp IE 1206 * for a STA */ 1207 WNM_SLEEP_TFS_IE_DEL /* AP delete the TFS IE */ 1208}; 1209 1210/* enum chan_width - Channel width definitions */ 1211enum chan_width { 1212 CHAN_WIDTH_20_NOHT, 1213 CHAN_WIDTH_20, 1214 CHAN_WIDTH_40, 1215 CHAN_WIDTH_80, 1216 CHAN_WIDTH_80P80, 1217 CHAN_WIDTH_160, 1218 CHAN_WIDTH_UNKNOWN 1219}; 1220 1221/** 1222 * struct wpa_signal_info - Information about channel signal quality 1223 */ 1224struct wpa_signal_info { 1225 u32 frequency; 1226 int above_threshold; 1227 int current_signal; 1228 int avg_signal; 1229 int current_noise; 1230 int current_txrate; 1231 enum chan_width chanwidth; 1232 int center_frq1; 1233 int center_frq2; 1234}; 1235 1236/** 1237 * struct beacon_data - Beacon data 1238 * @head: Head portion of Beacon frame (before TIM IE) 1239 * @tail: Tail portion of Beacon frame (after TIM IE) 1240 * @beacon_ies: Extra information element(s) to add into Beacon frames or %NULL 1241 * @proberesp_ies: Extra information element(s) to add into Probe Response 1242 * frames or %NULL 1243 * @assocresp_ies: Extra information element(s) to add into (Re)Association 1244 * Response frames or %NULL 1245 * @probe_resp: Probe Response frame template 1246 * @head_len: Length of @head 1247 * @tail_len: Length of @tail 1248 * @beacon_ies_len: Length of beacon_ies in octets 1249 * @proberesp_ies_len: Length of proberesp_ies in octets 1250 * @proberesp_ies_len: Length of proberesp_ies in octets 1251 * @probe_resp_len: Length of probe response template (@probe_resp) 1252 */ 1253struct beacon_data { 1254 u8 *head, *tail; 1255 u8 *beacon_ies; 1256 u8 *proberesp_ies; 1257 u8 *assocresp_ies; 1258 u8 *probe_resp; 1259 1260 size_t head_len, tail_len; 1261 size_t beacon_ies_len; 1262 size_t proberesp_ies_len; 1263 size_t assocresp_ies_len; 1264 size_t probe_resp_len; 1265}; 1266 1267/** 1268 * struct csa_settings - Settings for channel switch command 1269 * @cs_count: Count in Beacon frames (TBTT) to perform the switch 1270 * @block_tx: 1 - block transmission for CSA period 1271 * @freq_params: Next channel frequency parameter 1272 * @beacon_csa: Beacon/probe resp/asooc resp info for CSA period 1273 * @beacon_after: Next beacon/probe resp/asooc resp info 1274 * @counter_offset_beacon: Offset to the count field in beacon's tail 1275 * @counter_offset_presp: Offset to the count field in probe resp. 1276 */ 1277struct csa_settings { 1278 u8 cs_count; 1279 u8 block_tx; 1280 1281 struct hostapd_freq_params freq_params; 1282 struct beacon_data beacon_csa; 1283 struct beacon_data beacon_after; 1284 1285 u16 counter_offset_beacon; 1286 u16 counter_offset_presp; 1287}; 1288 1289/* TDLS peer capabilities for send_tdls_mgmt() */ 1290enum tdls_peer_capability { 1291 TDLS_PEER_HT = BIT(0), 1292 TDLS_PEER_VHT = BIT(1), 1293 TDLS_PEER_WMM = BIT(2), 1294}; 1295 1296/** 1297 * struct wpa_driver_ops - Driver interface API definition 1298 * 1299 * This structure defines the API that each driver interface needs to implement 1300 * for core wpa_supplicant code. All driver specific functionality is captured 1301 * in this wrapper. 1302 */ 1303struct wpa_driver_ops { 1304 /** Name of the driver interface */ 1305 const char *name; 1306 /** One line description of the driver interface */ 1307 const char *desc; 1308 1309 /** 1310 * get_bssid - Get the current BSSID 1311 * @priv: private driver interface data 1312 * @bssid: buffer for BSSID (ETH_ALEN = 6 bytes) 1313 * 1314 * Returns: 0 on success, -1 on failure 1315 * 1316 * Query kernel driver for the current BSSID and copy it to bssid. 1317 * Setting bssid to 00:00:00:00:00:00 is recommended if the STA is not 1318 * associated. 1319 */ 1320 int (*get_bssid)(void *priv, u8 *bssid); 1321 1322 /** 1323 * get_ssid - Get the current SSID 1324 * @priv: private driver interface data 1325 * @ssid: buffer for SSID (at least 32 bytes) 1326 * 1327 * Returns: Length of the SSID on success, -1 on failure 1328 * 1329 * Query kernel driver for the current SSID and copy it to ssid. 1330 * Returning zero is recommended if the STA is not associated. 1331 * 1332 * Note: SSID is an array of octets, i.e., it is not nul terminated and 1333 * can, at least in theory, contain control characters (including nul) 1334 * and as such, should be processed as binary data, not a printable 1335 * string. 1336 */ 1337 int (*get_ssid)(void *priv, u8 *ssid); 1338 1339 /** 1340 * set_key - Configure encryption key 1341 * @ifname: Interface name (for multi-SSID/VLAN support) 1342 * @priv: private driver interface data 1343 * @alg: encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP, 1344 * %WPA_ALG_TKIP, %WPA_ALG_CCMP, %WPA_ALG_IGTK, %WPA_ALG_PMK, 1345 * %WPA_ALG_GCMP, %WPA_ALG_GCMP_256, %WPA_ALG_CCMP_256, 1346 * %WPA_ALG_BIP_GMAC_128, %WPA_ALG_BIP_GMAC_256, 1347 * %WPA_ALG_BIP_CMAC_256); 1348 * %WPA_ALG_NONE clears the key. 1349 * @addr: Address of the peer STA (BSSID of the current AP when setting 1350 * pairwise key in station mode), ff:ff:ff:ff:ff:ff for 1351 * broadcast keys, %NULL for default keys that are used both for 1352 * broadcast and unicast; when clearing keys, %NULL is used to 1353 * indicate that both the broadcast-only and default key of the 1354 * specified key index is to be cleared 1355 * @key_idx: key index (0..3), usually 0 for unicast keys; 0..4095 for 1356 * IGTK 1357 * @set_tx: configure this key as the default Tx key (only used when 1358 * driver does not support separate unicast/individual key 1359 * @seq: sequence number/packet number, seq_len octets, the next 1360 * packet number to be used for in replay protection; configured 1361 * for Rx keys (in most cases, this is only used with broadcast 1362 * keys and set to zero for unicast keys); %NULL if not set 1363 * @seq_len: length of the seq, depends on the algorithm: 1364 * TKIP: 6 octets, CCMP/GCMP: 6 octets, IGTK: 6 octets 1365 * @key: key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key, 1366 * 8-byte Rx Mic Key 1367 * @key_len: length of the key buffer in octets (WEP: 5 or 13, 1368 * TKIP: 32, CCMP/GCMP: 16, IGTK: 16) 1369 * 1370 * Returns: 0 on success, -1 on failure 1371 * 1372 * Configure the given key for the kernel driver. If the driver 1373 * supports separate individual keys (4 default keys + 1 individual), 1374 * addr can be used to determine whether the key is default or 1375 * individual. If only 4 keys are supported, the default key with key 1376 * index 0 is used as the individual key. STA must be configured to use 1377 * it as the default Tx key (set_tx is set) and accept Rx for all the 1378 * key indexes. In most cases, WPA uses only key indexes 1 and 2 for 1379 * broadcast keys, so key index 0 is available for this kind of 1380 * configuration. 1381 * 1382 * Please note that TKIP keys include separate TX and RX MIC keys and 1383 * some drivers may expect them in different order than wpa_supplicant 1384 * is using. If the TX/RX keys are swapped, all TKIP encrypted packets 1385 * will trigger Michael MIC errors. This can be fixed by changing the 1386 * order of MIC keys by swapping te bytes 16..23 and 24..31 of the key 1387 * in driver_*.c set_key() implementation, see driver_ndis.c for an 1388 * example on how this can be done. 1389 */ 1390 int (*set_key)(const char *ifname, void *priv, enum wpa_alg alg, 1391 const u8 *addr, int key_idx, int set_tx, 1392 const u8 *seq, size_t seq_len, 1393 const u8 *key, size_t key_len); 1394 1395 /** 1396 * init - Initialize driver interface 1397 * @ctx: context to be used when calling wpa_supplicant functions, 1398 * e.g., wpa_supplicant_event() 1399 * @ifname: interface name, e.g., wlan0 1400 * 1401 * Returns: Pointer to private data, %NULL on failure 1402 * 1403 * Initialize driver interface, including event processing for kernel 1404 * driver events (e.g., associated, scan results, Michael MIC failure). 1405 * This function can allocate a private configuration data area for 1406 * @ctx, file descriptor, interface name, etc. information that may be 1407 * needed in future driver operations. If this is not used, non-NULL 1408 * value will need to be returned because %NULL is used to indicate 1409 * failure. The returned value will be used as 'void *priv' data for 1410 * all other driver_ops functions. 1411 * 1412 * The main event loop (eloop.c) of wpa_supplicant can be used to 1413 * register callback for read sockets (eloop_register_read_sock()). 1414 * 1415 * See below for more information about events and 1416 * wpa_supplicant_event() function. 1417 */ 1418 void * (*init)(void *ctx, const char *ifname); 1419 1420 /** 1421 * deinit - Deinitialize driver interface 1422 * @priv: private driver interface data from init() 1423 * 1424 * Shut down driver interface and processing of driver events. Free 1425 * private data buffer if one was allocated in init() handler. 1426 */ 1427 void (*deinit)(void *priv); 1428 1429 /** 1430 * set_param - Set driver configuration parameters 1431 * @priv: private driver interface data from init() 1432 * @param: driver specific configuration parameters 1433 * 1434 * Returns: 0 on success, -1 on failure 1435 * 1436 * Optional handler for notifying driver interface about configuration 1437 * parameters (driver_param). 1438 */ 1439 int (*set_param)(void *priv, const char *param); 1440 1441 /** 1442 * set_countermeasures - Enable/disable TKIP countermeasures 1443 * @priv: private driver interface data 1444 * @enabled: 1 = countermeasures enabled, 0 = disabled 1445 * 1446 * Returns: 0 on success, -1 on failure 1447 * 1448 * Configure TKIP countermeasures. When these are enabled, the driver 1449 * should drop all received and queued frames that are using TKIP. 1450 */ 1451 int (*set_countermeasures)(void *priv, int enabled); 1452 1453 /** 1454 * deauthenticate - Request driver to deauthenticate 1455 * @priv: private driver interface data 1456 * @addr: peer address (BSSID of the AP) 1457 * @reason_code: 16-bit reason code to be sent in the deauthentication 1458 * frame 1459 * 1460 * Returns: 0 on success, -1 on failure 1461 */ 1462 int (*deauthenticate)(void *priv, const u8 *addr, int reason_code); 1463 1464 /** 1465 * associate - Request driver to associate 1466 * @priv: private driver interface data 1467 * @params: association parameters 1468 * 1469 * Returns: 0 on success, -1 on failure 1470 */ 1471 int (*associate)(void *priv, 1472 struct wpa_driver_associate_params *params); 1473 1474 /** 1475 * add_pmkid - Add PMKSA cache entry to the driver 1476 * @priv: private driver interface data 1477 * @bssid: BSSID for the PMKSA cache entry 1478 * @pmkid: PMKID for the PMKSA cache entry 1479 * 1480 * Returns: 0 on success, -1 on failure 1481 * 1482 * This function is called when a new PMK is received, as a result of 1483 * either normal authentication or RSN pre-authentication. 1484 * 1485 * If the driver generates RSN IE, i.e., it does not use wpa_ie in 1486 * associate(), add_pmkid() can be used to add new PMKSA cache entries 1487 * in the driver. If the driver uses wpa_ie from wpa_supplicant, this 1488 * driver_ops function does not need to be implemented. Likewise, if 1489 * the driver does not support WPA, this function is not needed. 1490 */ 1491 int (*add_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid); 1492 1493 /** 1494 * remove_pmkid - Remove PMKSA cache entry to the driver 1495 * @priv: private driver interface data 1496 * @bssid: BSSID for the PMKSA cache entry 1497 * @pmkid: PMKID for the PMKSA cache entry 1498 * 1499 * Returns: 0 on success, -1 on failure 1500 * 1501 * This function is called when the supplicant drops a PMKSA cache 1502 * entry for any reason. 1503 * 1504 * If the driver generates RSN IE, i.e., it does not use wpa_ie in 1505 * associate(), remove_pmkid() can be used to synchronize PMKSA caches 1506 * between the driver and wpa_supplicant. If the driver uses wpa_ie 1507 * from wpa_supplicant, this driver_ops function does not need to be 1508 * implemented. Likewise, if the driver does not support WPA, this 1509 * function is not needed. 1510 */ 1511 int (*remove_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid); 1512 1513 /** 1514 * flush_pmkid - Flush PMKSA cache 1515 * @priv: private driver interface data 1516 * 1517 * Returns: 0 on success, -1 on failure 1518 * 1519 * This function is called when the supplicant drops all PMKSA cache 1520 * entries for any reason. 1521 * 1522 * If the driver generates RSN IE, i.e., it does not use wpa_ie in 1523 * associate(), remove_pmkid() can be used to synchronize PMKSA caches 1524 * between the driver and wpa_supplicant. If the driver uses wpa_ie 1525 * from wpa_supplicant, this driver_ops function does not need to be 1526 * implemented. Likewise, if the driver does not support WPA, this 1527 * function is not needed. 1528 */ 1529 int (*flush_pmkid)(void *priv); 1530 1531 /** 1532 * get_capa - Get driver capabilities 1533 * @priv: private driver interface data 1534 * 1535 * Returns: 0 on success, -1 on failure 1536 * 1537 * Get driver/firmware/hardware capabilities. 1538 */ 1539 int (*get_capa)(void *priv, struct wpa_driver_capa *capa); 1540 1541 /** 1542 * poll - Poll driver for association information 1543 * @priv: private driver interface data 1544 * 1545 * This is an option callback that can be used when the driver does not 1546 * provide event mechanism for association events. This is called when 1547 * receiving WPA EAPOL-Key messages that require association 1548 * information. The driver interface is supposed to generate associnfo 1549 * event before returning from this callback function. In addition, the 1550 * driver interface should generate an association event after having 1551 * sent out associnfo. 1552 */ 1553 void (*poll)(void *priv); 1554 1555 /** 1556 * get_ifname - Get interface name 1557 * @priv: private driver interface data 1558 * 1559 * Returns: Pointer to the interface name. This can differ from the 1560 * interface name used in init() call. Init() is called first. 1561 * 1562 * This optional function can be used to allow the driver interface to 1563 * replace the interface name with something else, e.g., based on an 1564 * interface mapping from a more descriptive name. 1565 */ 1566 const char * (*get_ifname)(void *priv); 1567 1568 /** 1569 * get_mac_addr - Get own MAC address 1570 * @priv: private driver interface data 1571 * 1572 * Returns: Pointer to own MAC address or %NULL on failure 1573 * 1574 * This optional function can be used to get the own MAC address of the 1575 * device from the driver interface code. This is only needed if the 1576 * l2_packet implementation for the OS does not provide easy access to 1577 * a MAC address. */ 1578 const u8 * (*get_mac_addr)(void *priv); 1579 1580 /** 1581 * send_eapol - Optional function for sending EAPOL packets 1582 * @priv: private driver interface data 1583 * @dest: Destination MAC address 1584 * @proto: Ethertype 1585 * @data: EAPOL packet starting with IEEE 802.1X header 1586 * @data_len: Size of the EAPOL packet 1587 * 1588 * Returns: 0 on success, -1 on failure 1589 * 1590 * This optional function can be used to override l2_packet operations 1591 * with driver specific functionality. If this function pointer is set, 1592 * l2_packet module is not used at all and the driver interface code is 1593 * responsible for receiving and sending all EAPOL packets. The 1594 * received EAPOL packets are sent to core code with EVENT_EAPOL_RX 1595 * event. The driver interface is required to implement get_mac_addr() 1596 * handler if send_eapol() is used. 1597 */ 1598 int (*send_eapol)(void *priv, const u8 *dest, u16 proto, 1599 const u8 *data, size_t data_len); 1600 1601 /** 1602 * set_operstate - Sets device operating state to DORMANT or UP 1603 * @priv: private driver interface data 1604 * @state: 0 = dormant, 1 = up 1605 * Returns: 0 on success, -1 on failure 1606 * 1607 * This is an optional function that can be used on operating systems 1608 * that support a concept of controlling network device state from user 1609 * space applications. This function, if set, gets called with 1610 * state = 1 when authentication has been completed and with state = 0 1611 * when connection is lost. 1612 */ 1613 int (*set_operstate)(void *priv, int state); 1614 1615 /** 1616 * mlme_setprotection - MLME-SETPROTECTION.request primitive 1617 * @priv: Private driver interface data 1618 * @addr: Address of the station for which to set protection (may be 1619 * %NULL for group keys) 1620 * @protect_type: MLME_SETPROTECTION_PROTECT_TYPE_* 1621 * @key_type: MLME_SETPROTECTION_KEY_TYPE_* 1622 * Returns: 0 on success, -1 on failure 1623 * 1624 * This is an optional function that can be used to set the driver to 1625 * require protection for Tx and/or Rx frames. This uses the layer 1626 * interface defined in IEEE 802.11i-2004 clause 10.3.22.1 1627 * (MLME-SETPROTECTION.request). Many drivers do not use explicit 1628 * set protection operation; instead, they set protection implicitly 1629 * based on configured keys. 1630 */ 1631 int (*mlme_setprotection)(void *priv, const u8 *addr, int protect_type, 1632 int key_type); 1633 1634 /** 1635 * get_hw_feature_data - Get hardware support data (channels and rates) 1636 * @priv: Private driver interface data 1637 * @num_modes: Variable for returning the number of returned modes 1638 * flags: Variable for returning hardware feature flags 1639 * Returns: Pointer to allocated hardware data on success or %NULL on 1640 * failure. Caller is responsible for freeing this. 1641 */ 1642 struct hostapd_hw_modes * (*get_hw_feature_data)(void *priv, 1643 u16 *num_modes, 1644 u16 *flags); 1645 1646 /** 1647 * send_mlme - Send management frame from MLME 1648 * @priv: Private driver interface data 1649 * @data: IEEE 802.11 management frame with IEEE 802.11 header 1650 * @data_len: Size of the management frame 1651 * @noack: Do not wait for this frame to be acked (disable retries) 1652 * Returns: 0 on success, -1 on failure 1653 */ 1654 int (*send_mlme)(void *priv, const u8 *data, size_t data_len, 1655 int noack); 1656 1657 /** 1658 * update_ft_ies - Update FT (IEEE 802.11r) IEs 1659 * @priv: Private driver interface data 1660 * @md: Mobility domain (2 octets) (also included inside ies) 1661 * @ies: FT IEs (MDIE, FTIE, ...) or %NULL to remove IEs 1662 * @ies_len: Length of FT IEs in bytes 1663 * Returns: 0 on success, -1 on failure 1664 * 1665 * The supplicant uses this callback to let the driver know that keying 1666 * material for FT is available and that the driver can use the 1667 * provided IEs in the next message in FT authentication sequence. 1668 * 1669 * This function is only needed for driver that support IEEE 802.11r 1670 * (Fast BSS Transition). 1671 */ 1672 int (*update_ft_ies)(void *priv, const u8 *md, const u8 *ies, 1673 size_t ies_len); 1674 1675 /** 1676 * send_ft_action - Send FT Action frame (IEEE 802.11r) 1677 * @priv: Private driver interface data 1678 * @action: Action field value 1679 * @target_ap: Target AP address 1680 * @ies: FT IEs (MDIE, FTIE, ...) (FT Request action frame body) 1681 * @ies_len: Length of FT IEs in bytes 1682 * Returns: 0 on success, -1 on failure 1683 * 1684 * The supplicant uses this callback to request the driver to transmit 1685 * an FT Action frame (action category 6) for over-the-DS fast BSS 1686 * transition. 1687 */ 1688 int (*send_ft_action)(void *priv, u8 action, const u8 *target_ap, 1689 const u8 *ies, size_t ies_len); 1690 1691 /** 1692 * get_scan_results2 - Fetch the latest scan results 1693 * @priv: private driver interface data 1694 * 1695 * Returns: Allocated buffer of scan results (caller is responsible for 1696 * freeing the data structure) on success, NULL on failure 1697 */ 1698 struct wpa_scan_results * (*get_scan_results2)(void *priv); 1699 1700 /** 1701 * set_country - Set country 1702 * @priv: Private driver interface data 1703 * @alpha2: country to which to switch to 1704 * Returns: 0 on success, -1 on failure 1705 * 1706 * This function is for drivers which support some form 1707 * of setting a regulatory domain. 1708 */ 1709 int (*set_country)(void *priv, const char *alpha2); 1710 1711 /** 1712 * get_country - Get country 1713 * @priv: Private driver interface data 1714 * @alpha2: Buffer for returning country code (at least 3 octets) 1715 * Returns: 0 on success, -1 on failure 1716 */ 1717 int (*get_country)(void *priv, char *alpha2); 1718 1719 /** 1720 * global_init - Global driver initialization 1721 * Returns: Pointer to private data (global), %NULL on failure 1722 * 1723 * This optional function is called to initialize the driver wrapper 1724 * for global data, i.e., data that applies to all interfaces. If this 1725 * function is implemented, global_deinit() will also need to be 1726 * implemented to free the private data. The driver will also likely 1727 * use init2() function instead of init() to get the pointer to global 1728 * data available to per-interface initializer. 1729 */ 1730 void * (*global_init)(void); 1731 1732 /** 1733 * global_deinit - Global driver deinitialization 1734 * @priv: private driver global data from global_init() 1735 * 1736 * Terminate any global driver related functionality and free the 1737 * global data structure. 1738 */ 1739 void (*global_deinit)(void *priv); 1740 1741 /** 1742 * init2 - Initialize driver interface (with global data) 1743 * @ctx: context to be used when calling wpa_supplicant functions, 1744 * e.g., wpa_supplicant_event() 1745 * @ifname: interface name, e.g., wlan0 1746 * @global_priv: private driver global data from global_init() 1747 * Returns: Pointer to private data, %NULL on failure 1748 * 1749 * This function can be used instead of init() if the driver wrapper 1750 * uses global data. 1751 */ 1752 void * (*init2)(void *ctx, const char *ifname, void *global_priv); 1753 1754 /** 1755 * get_interfaces - Get information about available interfaces 1756 * @global_priv: private driver global data from global_init() 1757 * Returns: Allocated buffer of interface information (caller is 1758 * responsible for freeing the data structure) on success, NULL on 1759 * failure 1760 */ 1761 struct wpa_interface_info * (*get_interfaces)(void *global_priv); 1762 1763 /** 1764 * scan2 - Request the driver to initiate scan 1765 * @priv: private driver interface data 1766 * @params: Scan parameters 1767 * 1768 * Returns: 0 on success, -1 on failure 1769 * 1770 * Once the scan results are ready, the driver should report scan 1771 * results event for wpa_supplicant which will eventually request the 1772 * results with wpa_driver_get_scan_results2(). 1773 */ 1774 int (*scan2)(void *priv, struct wpa_driver_scan_params *params); 1775 1776 /** 1777 * authenticate - Request driver to authenticate 1778 * @priv: private driver interface data 1779 * @params: authentication parameters 1780 * Returns: 0 on success, -1 on failure 1781 * 1782 * This is an optional function that can be used with drivers that 1783 * support separate authentication and association steps, i.e., when 1784 * wpa_supplicant can act as the SME. If not implemented, associate() 1785 * function is expected to take care of IEEE 802.11 authentication, 1786 * too. 1787 */ 1788 int (*authenticate)(void *priv, 1789 struct wpa_driver_auth_params *params); 1790 1791 /** 1792 * set_ap - Set Beacon and Probe Response information for AP mode 1793 * @priv: Private driver interface data 1794 * @params: Parameters to use in AP mode 1795 * 1796 * This function is used to configure Beacon template and/or extra IEs 1797 * to add for Beacon and Probe Response frames for the driver in 1798 * AP mode. The driver is responsible for building the full Beacon 1799 * frame by concatenating the head part with TIM IE generated by the 1800 * driver/firmware and finishing with the tail part. Depending on the 1801 * driver architectue, this can be done either by using the full 1802 * template or the set of additional IEs (e.g., WPS and P2P IE). 1803 * Similarly, Probe Response processing depends on the driver design. 1804 * If the driver (or firmware) takes care of replying to Probe Request 1805 * frames, the extra IEs provided here needs to be added to the Probe 1806 * Response frames. 1807 * 1808 * Returns: 0 on success, -1 on failure 1809 */ 1810 int (*set_ap)(void *priv, struct wpa_driver_ap_params *params); 1811 1812 /** 1813 * set_acl - Set ACL in AP mode 1814 * @priv: Private driver interface data 1815 * @params: Parameters to configure ACL 1816 * Returns: 0 on success, -1 on failure 1817 * 1818 * This is used only for the drivers which support MAC address ACL. 1819 */ 1820 int (*set_acl)(void *priv, struct hostapd_acl_params *params); 1821 1822 /** 1823 * hapd_init - Initialize driver interface (hostapd only) 1824 * @hapd: Pointer to hostapd context 1825 * @params: Configuration for the driver wrapper 1826 * Returns: Pointer to private data, %NULL on failure 1827 * 1828 * This function is used instead of init() or init2() when the driver 1829 * wrapper is used with hostapd. 1830 */ 1831 void * (*hapd_init)(struct hostapd_data *hapd, 1832 struct wpa_init_params *params); 1833 1834 /** 1835 * hapd_deinit - Deinitialize driver interface (hostapd only) 1836 * @priv: Private driver interface data from hapd_init() 1837 */ 1838 void (*hapd_deinit)(void *priv); 1839 1840 /** 1841 * set_ieee8021x - Enable/disable IEEE 802.1X support (AP only) 1842 * @priv: Private driver interface data 1843 * @params: BSS parameters 1844 * Returns: 0 on success, -1 on failure 1845 * 1846 * This is an optional function to configure the kernel driver to 1847 * enable/disable IEEE 802.1X support and set WPA/WPA2 parameters. This 1848 * can be left undefined (set to %NULL) if IEEE 802.1X support is 1849 * always enabled and the driver uses set_ap() to set WPA/RSN IE 1850 * for Beacon frames. 1851 * 1852 * DEPRECATED - use set_ap() instead 1853 */ 1854 int (*set_ieee8021x)(void *priv, struct wpa_bss_params *params); 1855 1856 /** 1857 * set_privacy - Enable/disable privacy (AP only) 1858 * @priv: Private driver interface data 1859 * @enabled: 1 = privacy enabled, 0 = disabled 1860 * Returns: 0 on success, -1 on failure 1861 * 1862 * This is an optional function to configure privacy field in the 1863 * kernel driver for Beacon frames. This can be left undefined (set to 1864 * %NULL) if the driver uses the Beacon template from set_ap(). 1865 * 1866 * DEPRECATED - use set_ap() instead 1867 */ 1868 int (*set_privacy)(void *priv, int enabled); 1869 1870 /** 1871 * get_seqnum - Fetch the current TSC/packet number (AP only) 1872 * @ifname: The interface name (main or virtual) 1873 * @priv: Private driver interface data 1874 * @addr: MAC address of the station or %NULL for group keys 1875 * @idx: Key index 1876 * @seq: Buffer for returning the latest used TSC/packet number 1877 * Returns: 0 on success, -1 on failure 1878 * 1879 * This function is used to fetch the last used TSC/packet number for 1880 * a TKIP, CCMP, GCMP, or BIP/IGTK key. It is mainly used with group 1881 * keys, so there is no strict requirement on implementing support for 1882 * unicast keys (i.e., addr != %NULL). 1883 */ 1884 int (*get_seqnum)(const char *ifname, void *priv, const u8 *addr, 1885 int idx, u8 *seq); 1886 1887 /** 1888 * flush - Flush all association stations (AP only) 1889 * @priv: Private driver interface data 1890 * Returns: 0 on success, -1 on failure 1891 * 1892 * This function requests the driver to disassociate all associated 1893 * stations. This function does not need to be implemented if the 1894 * driver does not process association frames internally. 1895 */ 1896 int (*flush)(void *priv); 1897 1898 /** 1899 * set_generic_elem - Add IEs into Beacon/Probe Response frames (AP) 1900 * @priv: Private driver interface data 1901 * @elem: Information elements 1902 * @elem_len: Length of the elem buffer in octets 1903 * Returns: 0 on success, -1 on failure 1904 * 1905 * This is an optional function to add information elements in the 1906 * kernel driver for Beacon and Probe Response frames. This can be left 1907 * undefined (set to %NULL) if the driver uses the Beacon template from 1908 * set_ap(). 1909 * 1910 * DEPRECATED - use set_ap() instead 1911 */ 1912 int (*set_generic_elem)(void *priv, const u8 *elem, size_t elem_len); 1913 1914 /** 1915 * read_sta_data - Fetch station data 1916 * @priv: Private driver interface data 1917 * @data: Buffer for returning station information 1918 * @addr: MAC address of the station 1919 * Returns: 0 on success, -1 on failure 1920 */ 1921 int (*read_sta_data)(void *priv, struct hostap_sta_driver_data *data, 1922 const u8 *addr); 1923 1924 /** 1925 * hapd_send_eapol - Send an EAPOL packet (AP only) 1926 * @priv: private driver interface data 1927 * @addr: Destination MAC address 1928 * @data: EAPOL packet starting with IEEE 802.1X header 1929 * @data_len: Length of the EAPOL packet in octets 1930 * @encrypt: Whether the frame should be encrypted 1931 * @own_addr: Source MAC address 1932 * @flags: WPA_STA_* flags for the destination station 1933 * 1934 * Returns: 0 on success, -1 on failure 1935 */ 1936 int (*hapd_send_eapol)(void *priv, const u8 *addr, const u8 *data, 1937 size_t data_len, int encrypt, 1938 const u8 *own_addr, u32 flags); 1939 1940 /** 1941 * sta_deauth - Deauthenticate a station (AP only) 1942 * @priv: Private driver interface data 1943 * @own_addr: Source address and BSSID for the Deauthentication frame 1944 * @addr: MAC address of the station to deauthenticate 1945 * @reason: Reason code for the Deauthentiation frame 1946 * Returns: 0 on success, -1 on failure 1947 * 1948 * This function requests a specific station to be deauthenticated and 1949 * a Deauthentication frame to be sent to it. 1950 */ 1951 int (*sta_deauth)(void *priv, const u8 *own_addr, const u8 *addr, 1952 int reason); 1953 1954 /** 1955 * sta_disassoc - Disassociate a station (AP only) 1956 * @priv: Private driver interface data 1957 * @own_addr: Source address and BSSID for the Disassociation frame 1958 * @addr: MAC address of the station to disassociate 1959 * @reason: Reason code for the Disassociation frame 1960 * Returns: 0 on success, -1 on failure 1961 * 1962 * This function requests a specific station to be disassociated and 1963 * a Disassociation frame to be sent to it. 1964 */ 1965 int (*sta_disassoc)(void *priv, const u8 *own_addr, const u8 *addr, 1966 int reason); 1967 1968 /** 1969 * sta_remove - Remove a station entry (AP only) 1970 * @priv: Private driver interface data 1971 * @addr: MAC address of the station to be removed 1972 * Returns: 0 on success, -1 on failure 1973 */ 1974 int (*sta_remove)(void *priv, const u8 *addr); 1975 1976 /** 1977 * hapd_get_ssid - Get the current SSID (AP only) 1978 * @priv: Private driver interface data 1979 * @buf: Buffer for returning the SSID 1980 * @len: Maximum length of the buffer 1981 * Returns: Length of the SSID on success, -1 on failure 1982 * 1983 * This function need not be implemented if the driver uses Beacon 1984 * template from set_ap() and does not reply to Probe Request frames. 1985 */ 1986 int (*hapd_get_ssid)(void *priv, u8 *buf, int len); 1987 1988 /** 1989 * hapd_set_ssid - Set SSID (AP only) 1990 * @priv: Private driver interface data 1991 * @buf: SSID 1992 * @len: Length of the SSID in octets 1993 * Returns: 0 on success, -1 on failure 1994 * 1995 * DEPRECATED - use set_ap() instead 1996 */ 1997 int (*hapd_set_ssid)(void *priv, const u8 *buf, int len); 1998 1999 /** 2000 * hapd_set_countermeasures - Enable/disable TKIP countermeasures (AP) 2001 * @priv: Private driver interface data 2002 * @enabled: 1 = countermeasures enabled, 0 = disabled 2003 * Returns: 0 on success, -1 on failure 2004 * 2005 * This need not be implemented if the driver does not take care of 2006 * association processing. 2007 */ 2008 int (*hapd_set_countermeasures)(void *priv, int enabled); 2009 2010 /** 2011 * sta_add - Add a station entry 2012 * @priv: Private driver interface data 2013 * @params: Station parameters 2014 * Returns: 0 on success, -1 on failure 2015 * 2016 * This function is used to add a station entry to the driver once the 2017 * station has completed association. This is only used if the driver 2018 * does not take care of association processing. 2019 * 2020 * With TDLS, this function is also used to add or set (params->set 1) 2021 * TDLS peer entries. 2022 */ 2023 int (*sta_add)(void *priv, struct hostapd_sta_add_params *params); 2024 2025 /** 2026 * get_inact_sec - Get station inactivity duration (AP only) 2027 * @priv: Private driver interface data 2028 * @addr: Station address 2029 * Returns: Number of seconds station has been inactive, -1 on failure 2030 */ 2031 int (*get_inact_sec)(void *priv, const u8 *addr); 2032 2033 /** 2034 * sta_clear_stats - Clear station statistics (AP only) 2035 * @priv: Private driver interface data 2036 * @addr: Station address 2037 * Returns: 0 on success, -1 on failure 2038 */ 2039 int (*sta_clear_stats)(void *priv, const u8 *addr); 2040 2041 /** 2042 * set_freq - Set channel/frequency (AP only) 2043 * @priv: Private driver interface data 2044 * @freq: Channel parameters 2045 * Returns: 0 on success, -1 on failure 2046 */ 2047 int (*set_freq)(void *priv, struct hostapd_freq_params *freq); 2048 2049 /** 2050 * set_rts - Set RTS threshold 2051 * @priv: Private driver interface data 2052 * @rts: RTS threshold in octets 2053 * Returns: 0 on success, -1 on failure 2054 */ 2055 int (*set_rts)(void *priv, int rts); 2056 2057 /** 2058 * set_frag - Set fragmentation threshold 2059 * @priv: Private driver interface data 2060 * @frag: Fragmentation threshold in octets 2061 * Returns: 0 on success, -1 on failure 2062 */ 2063 int (*set_frag)(void *priv, int frag); 2064 2065 /** 2066 * sta_set_flags - Set station flags (AP only) 2067 * @priv: Private driver interface data 2068 * @addr: Station address 2069 * @total_flags: Bitmap of all WPA_STA_* flags currently set 2070 * @flags_or: Bitmap of WPA_STA_* flags to add 2071 * @flags_and: Bitmap of WPA_STA_* flags to us as a mask 2072 * Returns: 0 on success, -1 on failure 2073 */ 2074 int (*sta_set_flags)(void *priv, const u8 *addr, 2075 int total_flags, int flags_or, int flags_and); 2076 2077 /** 2078 * set_tx_queue_params - Set TX queue parameters 2079 * @priv: Private driver interface data 2080 * @queue: Queue number (0 = VO, 1 = VI, 2 = BE, 3 = BK) 2081 * @aifs: AIFS 2082 * @cw_min: cwMin 2083 * @cw_max: cwMax 2084 * @burst_time: Maximum length for bursting in 0.1 msec units 2085 */ 2086 int (*set_tx_queue_params)(void *priv, int queue, int aifs, int cw_min, 2087 int cw_max, int burst_time); 2088 2089 /** 2090 * if_add - Add a virtual interface 2091 * @priv: Private driver interface data 2092 * @type: Interface type 2093 * @ifname: Interface name for the new virtual interface 2094 * @addr: Local address to use for the interface or %NULL to use the 2095 * parent interface address 2096 * @bss_ctx: BSS context for %WPA_IF_AP_BSS interfaces 2097 * @drv_priv: Pointer for overwriting the driver context or %NULL if 2098 * not allowed (applies only to %WPA_IF_AP_BSS type) 2099 * @force_ifname: Buffer for returning an interface name that the 2100 * driver ended up using if it differs from the requested ifname 2101 * @if_addr: Buffer for returning the allocated interface address 2102 * (this may differ from the requested addr if the driver cannot 2103 * change interface address) 2104 * @bridge: Bridge interface to use or %NULL if no bridge configured 2105 * @use_existing: Whether to allow existing interface to be used 2106 * Returns: 0 on success, -1 on failure 2107 */ 2108 int (*if_add)(void *priv, enum wpa_driver_if_type type, 2109 const char *ifname, const u8 *addr, void *bss_ctx, 2110 void **drv_priv, char *force_ifname, u8 *if_addr, 2111 const char *bridge, int use_existing); 2112 2113 /** 2114 * if_remove - Remove a virtual interface 2115 * @priv: Private driver interface data 2116 * @type: Interface type 2117 * @ifname: Interface name of the virtual interface to be removed 2118 * Returns: 0 on success, -1 on failure 2119 */ 2120 int (*if_remove)(void *priv, enum wpa_driver_if_type type, 2121 const char *ifname); 2122 2123 /** 2124 * set_sta_vlan - Bind a station into a specific interface (AP only) 2125 * @priv: Private driver interface data 2126 * @ifname: Interface (main or virtual BSS or VLAN) 2127 * @addr: MAC address of the associated station 2128 * @vlan_id: VLAN ID 2129 * Returns: 0 on success, -1 on failure 2130 * 2131 * This function is used to bind a station to a specific virtual 2132 * interface. It is only used if when virtual interfaces are supported, 2133 * e.g., to assign stations to different VLAN interfaces based on 2134 * information from a RADIUS server. This allows separate broadcast 2135 * domains to be used with a single BSS. 2136 */ 2137 int (*set_sta_vlan)(void *priv, const u8 *addr, const char *ifname, 2138 int vlan_id); 2139 2140 /** 2141 * commit - Optional commit changes handler (AP only) 2142 * @priv: driver private data 2143 * Returns: 0 on success, -1 on failure 2144 * 2145 * This optional handler function can be registered if the driver 2146 * interface implementation needs to commit changes (e.g., by setting 2147 * network interface up) at the end of initial configuration. If set, 2148 * this handler will be called after initial setup has been completed. 2149 */ 2150 int (*commit)(void *priv); 2151 2152 /** 2153 * send_ether - Send an ethernet packet (AP only) 2154 * @priv: private driver interface data 2155 * @dst: Destination MAC address 2156 * @src: Source MAC address 2157 * @proto: Ethertype 2158 * @data: EAPOL packet starting with IEEE 802.1X header 2159 * @data_len: Length of the EAPOL packet in octets 2160 * Returns: 0 on success, -1 on failure 2161 */ 2162 int (*send_ether)(void *priv, const u8 *dst, const u8 *src, u16 proto, 2163 const u8 *data, size_t data_len); 2164 2165 /** 2166 * set_radius_acl_auth - Notification of RADIUS ACL change 2167 * @priv: Private driver interface data 2168 * @mac: MAC address of the station 2169 * @accepted: Whether the station was accepted 2170 * @session_timeout: Session timeout for the station 2171 * Returns: 0 on success, -1 on failure 2172 */ 2173 int (*set_radius_acl_auth)(void *priv, const u8 *mac, int accepted, 2174 u32 session_timeout); 2175 2176 /** 2177 * set_radius_acl_expire - Notification of RADIUS ACL expiration 2178 * @priv: Private driver interface data 2179 * @mac: MAC address of the station 2180 * Returns: 0 on success, -1 on failure 2181 */ 2182 int (*set_radius_acl_expire)(void *priv, const u8 *mac); 2183 2184 /** 2185 * set_ap_wps_ie - Add WPS IE(s) into Beacon/Probe Response frames (AP) 2186 * @priv: Private driver interface data 2187 * @beacon: WPS IE(s) for Beacon frames or %NULL to remove extra IE(s) 2188 * @proberesp: WPS IE(s) for Probe Response frames or %NULL to remove 2189 * extra IE(s) 2190 * @assocresp: WPS IE(s) for (Re)Association Response frames or %NULL 2191 * to remove extra IE(s) 2192 * Returns: 0 on success, -1 on failure 2193 * 2194 * This is an optional function to add WPS IE in the kernel driver for 2195 * Beacon and Probe Response frames. This can be left undefined (set 2196 * to %NULL) if the driver uses the Beacon template from set_ap() 2197 * and does not process Probe Request frames. If the driver takes care 2198 * of (Re)Association frame processing, the assocresp buffer includes 2199 * WPS IE(s) that need to be added to (Re)Association Response frames 2200 * whenever a (Re)Association Request frame indicated use of WPS. 2201 * 2202 * This will also be used to add P2P IE(s) into Beacon/Probe Response 2203 * frames when operating as a GO. The driver is responsible for adding 2204 * timing related attributes (e.g., NoA) in addition to the IEs 2205 * included here by appending them after these buffers. This call is 2206 * also used to provide Probe Response IEs for P2P Listen state 2207 * operations for drivers that generate the Probe Response frames 2208 * internally. 2209 * 2210 * DEPRECATED - use set_ap() instead 2211 */ 2212 int (*set_ap_wps_ie)(void *priv, const struct wpabuf *beacon, 2213 const struct wpabuf *proberesp, 2214 const struct wpabuf *assocresp); 2215 2216 /** 2217 * set_supp_port - Set IEEE 802.1X Supplicant Port status 2218 * @priv: Private driver interface data 2219 * @authorized: Whether the port is authorized 2220 * Returns: 0 on success, -1 on failure 2221 */ 2222 int (*set_supp_port)(void *priv, int authorized); 2223 2224 /** 2225 * set_wds_sta - Bind a station into a 4-address WDS (AP only) 2226 * @priv: Private driver interface data 2227 * @addr: MAC address of the associated station 2228 * @aid: Association ID 2229 * @val: 1 = bind to 4-address WDS; 0 = unbind 2230 * @bridge_ifname: Bridge interface to use for the WDS station or %NULL 2231 * to indicate that bridge is not to be used 2232 * @ifname_wds: Buffer to return the interface name for the new WDS 2233 * station or %NULL to indicate name is not returned. 2234 * Returns: 0 on success, -1 on failure 2235 */ 2236 int (*set_wds_sta)(void *priv, const u8 *addr, int aid, int val, 2237 const char *bridge_ifname, char *ifname_wds); 2238 2239 /** 2240 * send_action - Transmit an Action frame 2241 * @priv: Private driver interface data 2242 * @freq: Frequency (in MHz) of the channel 2243 * @wait: Time to wait off-channel for a response (in ms), or zero 2244 * @dst: Destination MAC address (Address 1) 2245 * @src: Source MAC address (Address 2) 2246 * @bssid: BSSID (Address 3) 2247 * @data: Frame body 2248 * @data_len: data length in octets 2249 @ @no_cck: Whether CCK rates must not be used to transmit this frame 2250 * Returns: 0 on success, -1 on failure 2251 * 2252 * This command can be used to request the driver to transmit an action 2253 * frame to the specified destination. 2254 * 2255 * If the %WPA_DRIVER_FLAGS_OFFCHANNEL_TX flag is set, the frame will 2256 * be transmitted on the given channel and the device will wait for a 2257 * response on that channel for the given wait time. 2258 * 2259 * If the flag is not set, the wait time will be ignored. In this case, 2260 * if a remain-on-channel duration is in progress, the frame must be 2261 * transmitted on that channel; alternatively the frame may be sent on 2262 * the current operational channel (if in associated state in station 2263 * mode or while operating as an AP.) 2264 */ 2265 int (*send_action)(void *priv, unsigned int freq, unsigned int wait, 2266 const u8 *dst, const u8 *src, const u8 *bssid, 2267 const u8 *data, size_t data_len, int no_cck); 2268 2269 /** 2270 * send_action_cancel_wait - Cancel action frame TX wait 2271 * @priv: Private driver interface data 2272 * 2273 * This command cancels the wait time associated with sending an action 2274 * frame. It is only available when %WPA_DRIVER_FLAGS_OFFCHANNEL_TX is 2275 * set in the driver flags. 2276 */ 2277 void (*send_action_cancel_wait)(void *priv); 2278 2279 /** 2280 * remain_on_channel - Remain awake on a channel 2281 * @priv: Private driver interface data 2282 * @freq: Frequency (in MHz) of the channel 2283 * @duration: Duration in milliseconds 2284 * Returns: 0 on success, -1 on failure 2285 * 2286 * This command is used to request the driver to remain awake on the 2287 * specified channel for the specified duration and report received 2288 * Action frames with EVENT_RX_MGMT events. Optionally, received 2289 * Probe Request frames may also be requested to be reported by calling 2290 * probe_req_report(). These will be reported with EVENT_RX_PROBE_REQ. 2291 * 2292 * The driver may not be at the requested channel when this function 2293 * returns, i.e., the return code is only indicating whether the 2294 * request was accepted. The caller will need to wait until the 2295 * EVENT_REMAIN_ON_CHANNEL event indicates that the driver has 2296 * completed the channel change. This may take some time due to other 2297 * need for the radio and the caller should be prepared to timing out 2298 * its wait since there are no guarantees on when this request can be 2299 * executed. 2300 */ 2301 int (*remain_on_channel)(void *priv, unsigned int freq, 2302 unsigned int duration); 2303 2304 /** 2305 * cancel_remain_on_channel - Cancel remain-on-channel operation 2306 * @priv: Private driver interface data 2307 * 2308 * This command can be used to cancel a remain-on-channel operation 2309 * before its originally requested duration has passed. This could be 2310 * used, e.g., when remain_on_channel() is used to request extra time 2311 * to receive a response to an Action frame and the response is 2312 * received when there is still unneeded time remaining on the 2313 * remain-on-channel operation. 2314 */ 2315 int (*cancel_remain_on_channel)(void *priv); 2316 2317 /** 2318 * probe_req_report - Request Probe Request frames to be indicated 2319 * @priv: Private driver interface data 2320 * @report: Whether to report received Probe Request frames 2321 * Returns: 0 on success, -1 on failure (or if not supported) 2322 * 2323 * This command can be used to request the driver to indicate when 2324 * Probe Request frames are received with EVENT_RX_PROBE_REQ events. 2325 * Since this operation may require extra resources, e.g., due to less 2326 * optimal hardware/firmware RX filtering, many drivers may disable 2327 * Probe Request reporting at least in station mode. This command is 2328 * used to notify the driver when the Probe Request frames need to be 2329 * reported, e.g., during remain-on-channel operations. 2330 */ 2331 int (*probe_req_report)(void *priv, int report); 2332 2333 /** 2334 * deinit_ap - Deinitialize AP mode 2335 * @priv: Private driver interface data 2336 * Returns: 0 on success, -1 on failure (or if not supported) 2337 * 2338 * This optional function can be used to disable AP mode related 2339 * configuration. If the interface was not dynamically added, 2340 * change the driver mode to station mode to allow normal station 2341 * operations like scanning to be completed. 2342 */ 2343 int (*deinit_ap)(void *priv); 2344 2345 /** 2346 * deinit_p2p_cli - Deinitialize P2P client mode 2347 * @priv: Private driver interface data 2348 * Returns: 0 on success, -1 on failure (or if not supported) 2349 * 2350 * This optional function can be used to disable P2P client mode. If the 2351 * interface was not dynamically added, change the interface type back 2352 * to station mode. 2353 */ 2354 int (*deinit_p2p_cli)(void *priv); 2355 2356 /** 2357 * suspend - Notification on system suspend/hibernate event 2358 * @priv: Private driver interface data 2359 */ 2360 void (*suspend)(void *priv); 2361 2362 /** 2363 * resume - Notification on system resume/thaw event 2364 * @priv: Private driver interface data 2365 */ 2366 void (*resume)(void *priv); 2367 2368 /** 2369 * signal_monitor - Set signal monitoring parameters 2370 * @priv: Private driver interface data 2371 * @threshold: Threshold value for signal change events; 0 = disabled 2372 * @hysteresis: Minimum change in signal strength before indicating a 2373 * new event 2374 * Returns: 0 on success, -1 on failure (or if not supported) 2375 * 2376 * This function can be used to configure monitoring of signal strength 2377 * with the current AP. Whenever signal strength drops below the 2378 * %threshold value or increases above it, EVENT_SIGNAL_CHANGE event 2379 * should be generated assuming the signal strength has changed at 2380 * least %hysteresis from the previously indicated signal change event. 2381 */ 2382 int (*signal_monitor)(void *priv, int threshold, int hysteresis); 2383 2384 /** 2385 * send_frame - Send IEEE 802.11 frame (testing use only) 2386 * @priv: Private driver interface data 2387 * @data: IEEE 802.11 frame with IEEE 802.11 header 2388 * @data_len: Size of the frame 2389 * @encrypt: Whether to encrypt the frame (if keys are set) 2390 * Returns: 0 on success, -1 on failure 2391 * 2392 * This function is only used for debugging purposes and is not 2393 * required to be implemented for normal operations. 2394 */ 2395 int (*send_frame)(void *priv, const u8 *data, size_t data_len, 2396 int encrypt); 2397 2398 /** 2399 * shared_freq - Get operating frequency of shared interface(s) 2400 * @priv: Private driver interface data 2401 * Returns: Operating frequency in MHz, 0 if no shared operation in 2402 * use, or -1 on failure 2403 * 2404 * This command can be used to request the current operating frequency 2405 * of any virtual interface that shares the same radio to provide 2406 * information for channel selection for other virtual interfaces. 2407 */ 2408 int (*shared_freq)(void *priv); 2409 2410 /** 2411 * get_noa - Get current Notice of Absence attribute payload 2412 * @priv: Private driver interface data 2413 * @buf: Buffer for returning NoA 2414 * @buf_len: Buffer length in octets 2415 * Returns: Number of octets used in buf, 0 to indicate no NoA is being 2416 * advertized, or -1 on failure 2417 * 2418 * This function is used to fetch the current Notice of Absence 2419 * attribute value from GO. 2420 */ 2421 int (*get_noa)(void *priv, u8 *buf, size_t buf_len); 2422 2423 /** 2424 * set_noa - Set Notice of Absence parameters for GO (testing) 2425 * @priv: Private driver interface data 2426 * @count: Count 2427 * @start: Start time in ms from next TBTT 2428 * @duration: Duration in ms 2429 * Returns: 0 on success or -1 on failure 2430 * 2431 * This function is used to set Notice of Absence parameters for GO. It 2432 * is used only for testing. To disable NoA, all parameters are set to 2433 * 0. 2434 */ 2435 int (*set_noa)(void *priv, u8 count, int start, int duration); 2436 2437 /** 2438 * set_p2p_powersave - Set P2P power save options 2439 * @priv: Private driver interface data 2440 * @legacy_ps: 0 = disable, 1 = enable, 2 = maximum PS, -1 = no change 2441 * @opp_ps: 0 = disable, 1 = enable, -1 = no change 2442 * @ctwindow: 0.. = change (msec), -1 = no change 2443 * Returns: 0 on success or -1 on failure 2444 */ 2445 int (*set_p2p_powersave)(void *priv, int legacy_ps, int opp_ps, 2446 int ctwindow); 2447 2448 /** 2449 * ampdu - Enable/disable aggregation 2450 * @priv: Private driver interface data 2451 * @ampdu: 1/0 = enable/disable A-MPDU aggregation 2452 * Returns: 0 on success or -1 on failure 2453 */ 2454 int (*ampdu)(void *priv, int ampdu); 2455 2456 /** 2457 * get_radio_name - Get physical radio name for the device 2458 * @priv: Private driver interface data 2459 * Returns: Radio name or %NULL if not known 2460 * 2461 * The returned data must not be modified by the caller. It is assumed 2462 * that any interface that has the same radio name as another is 2463 * sharing the same physical radio. This information can be used to 2464 * share scan results etc. information between the virtual interfaces 2465 * to speed up various operations. 2466 */ 2467 const char * (*get_radio_name)(void *priv); 2468 2469 /** 2470 * send_tdls_mgmt - for sending TDLS management packets 2471 * @priv: private driver interface data 2472 * @dst: Destination (peer) MAC address 2473 * @action_code: TDLS action code for the mssage 2474 * @dialog_token: Dialog Token to use in the message (if needed) 2475 * @status_code: Status Code or Reason Code to use (if needed) 2476 * @peer_capab: TDLS peer capability (TDLS_PEER_* bitfield) 2477 * @buf: TDLS IEs to add to the message 2478 * @len: Length of buf in octets 2479 * Returns: 0 on success, negative (<0) on failure 2480 * 2481 * This optional function can be used to send packet to driver which is 2482 * responsible for receiving and sending all TDLS packets. 2483 */ 2484 int (*send_tdls_mgmt)(void *priv, const u8 *dst, u8 action_code, 2485 u8 dialog_token, u16 status_code, u32 peer_capab, 2486 const u8 *buf, size_t len); 2487 2488 /** 2489 * tdls_oper - Ask the driver to perform high-level TDLS operations 2490 * @priv: Private driver interface data 2491 * @oper: TDLS high-level operation. See %enum tdls_oper 2492 * @peer: Destination (peer) MAC address 2493 * Returns: 0 on success, negative (<0) on failure 2494 * 2495 * This optional function can be used to send high-level TDLS commands 2496 * to the driver. 2497 */ 2498 int (*tdls_oper)(void *priv, enum tdls_oper oper, const u8 *peer); 2499 2500 /** 2501 * wnm_oper - Notify driver of the WNM frame reception 2502 * @priv: Private driver interface data 2503 * @oper: WNM operation. See %enum wnm_oper 2504 * @peer: Destination (peer) MAC address 2505 * @buf: Buffer for the driver to fill in (for getting IE) 2506 * @buf_len: Return the len of buf 2507 * Returns: 0 on success, negative (<0) on failure 2508 */ 2509 int (*wnm_oper)(void *priv, enum wnm_oper oper, const u8 *peer, 2510 u8 *buf, u16 *buf_len); 2511 2512 /** 2513 * set_qos_map - Set QoS Map 2514 * @priv: Private driver interface data 2515 * @qos_map_set: QoS Map 2516 * @qos_map_set_len: Length of QoS Map 2517 */ 2518 int (*set_qos_map)(void *priv, const u8 *qos_map_set, 2519 u8 qos_map_set_len); 2520 2521 /** 2522 * signal_poll - Get current connection information 2523 * @priv: Private driver interface data 2524 * @signal_info: Connection info structure 2525 */ 2526 int (*signal_poll)(void *priv, struct wpa_signal_info *signal_info); 2527 2528 /** 2529 * set_authmode - Set authentication algorithm(s) for static WEP 2530 * @priv: Private driver interface data 2531 * @authmode: 1=Open System, 2=Shared Key, 3=both 2532 * Returns: 0 on success, -1 on failure 2533 * 2534 * This function can be used to set authentication algorithms for AP 2535 * mode when static WEP is used. If the driver uses user space MLME/SME 2536 * implementation, there is no need to implement this function. 2537 * 2538 * DEPRECATED - use set_ap() instead 2539 */ 2540 int (*set_authmode)(void *priv, int authmode); 2541 2542#ifdef ANDROID 2543 /** 2544 * driver_cmd - Execute driver-specific command 2545 * @priv: Private driver interface data 2546 * @cmd: Command to execute 2547 * @buf: Return buffer 2548 * @buf_len: Buffer length 2549 * Returns: 0 on success, -1 on failure 2550 */ 2551 int (*driver_cmd)(void *priv, char *cmd, char *buf, size_t buf_len); 2552#endif /* ANDROID */ 2553 2554 /** 2555 * vendor_cmd - Execute vendor specific command 2556 * @priv: Private driver interface data 2557 * @vendor_id: Vendor id 2558 * @subcmd: Vendor command id 2559 * @data: Vendor command parameters (%NULL if no parameters) 2560 * @data_len: Data length 2561 * @buf: Return buffer (%NULL to ignore reply) 2562 * Returns: 0 on success, negative (<0) on failure 2563 * 2564 * This function handles vendor specific commands that are passed to 2565 * the driver/device. The command is identified by vendor id and 2566 * command id. Parameters can be passed as argument to the command 2567 * in the data buffer. Reply (if any) will be filled in the supplied 2568 * return buffer. 2569 * 2570 * The exact driver behavior is driver interface and vendor specific. As 2571 * an example, this will be converted to a vendor specific cfg80211 2572 * command in case of the nl80211 driver interface. 2573 */ 2574 int (*vendor_cmd)(void *priv, unsigned int vendor_id, 2575 unsigned int subcmd, const u8 *data, size_t data_len, 2576 struct wpabuf *buf); 2577 2578 /** 2579 * set_rekey_info - Set rekey information 2580 * @priv: Private driver interface data 2581 * @kek: Current KEK 2582 * @kck: Current KCK 2583 * @replay_ctr: Current EAPOL-Key Replay Counter 2584 * 2585 * This optional function can be used to provide information for the 2586 * driver/firmware to process EAPOL-Key frames in Group Key Handshake 2587 * while the host (including wpa_supplicant) is sleeping. 2588 */ 2589 void (*set_rekey_info)(void *priv, const u8 *kek, const u8 *kck, 2590 const u8 *replay_ctr); 2591 2592 /** 2593 * sta_assoc - Station association indication 2594 * @priv: Private driver interface data 2595 * @own_addr: Source address and BSSID for association frame 2596 * @addr: MAC address of the station to associate 2597 * @reassoc: flag to indicate re-association 2598 * @status: association response status code 2599 * @ie: assoc response ie buffer 2600 * @len: ie buffer length 2601 * Returns: 0 on success, -1 on failure 2602 * 2603 * This function indicates the driver to send (Re)Association 2604 * Response frame to the station. 2605 */ 2606 int (*sta_assoc)(void *priv, const u8 *own_addr, const u8 *addr, 2607 int reassoc, u16 status, const u8 *ie, size_t len); 2608 2609 /** 2610 * sta_auth - Station authentication indication 2611 * @priv: Private driver interface data 2612 * @own_addr: Source address and BSSID for authentication frame 2613 * @addr: MAC address of the station to associate 2614 * @seq: authentication sequence number 2615 * @status: authentication response status code 2616 * @ie: authentication frame ie buffer 2617 * @len: ie buffer length 2618 * 2619 * This function indicates the driver to send Authentication frame 2620 * to the station. 2621 */ 2622 int (*sta_auth)(void *priv, const u8 *own_addr, const u8 *addr, 2623 u16 seq, u16 status, const u8 *ie, size_t len); 2624 2625 /** 2626 * add_tspec - Add traffic stream 2627 * @priv: Private driver interface data 2628 * @addr: MAC address of the station to associate 2629 * @tspec_ie: tspec ie buffer 2630 * @tspec_ielen: tspec ie length 2631 * Returns: 0 on success, -1 on failure 2632 * 2633 * This function adds the traffic steam for the station 2634 * and fills the medium_time in tspec_ie. 2635 */ 2636 int (*add_tspec)(void *priv, const u8 *addr, u8 *tspec_ie, 2637 size_t tspec_ielen); 2638 2639 /** 2640 * add_sta_node - Add a station node in the driver 2641 * @priv: Private driver interface data 2642 * @addr: MAC address of the station to add 2643 * @auth_alg: authentication algorithm used by the station 2644 * Returns: 0 on success, -1 on failure 2645 * 2646 * This function adds the station node in the driver, when 2647 * the station gets added by FT-over-DS. 2648 */ 2649 int (*add_sta_node)(void *priv, const u8 *addr, u16 auth_alg); 2650 2651 /** 2652 * sched_scan - Request the driver to initiate scheduled scan 2653 * @priv: Private driver interface data 2654 * @params: Scan parameters 2655 * @interval: Interval between scan cycles in milliseconds 2656 * Returns: 0 on success, -1 on failure 2657 * 2658 * This operation should be used for scheduled scan offload to 2659 * the hardware. Every time scan results are available, the 2660 * driver should report scan results event for wpa_supplicant 2661 * which will eventually request the results with 2662 * wpa_driver_get_scan_results2(). This operation is optional 2663 * and if not provided or if it returns -1, we fall back to 2664 * normal host-scheduled scans. 2665 */ 2666 int (*sched_scan)(void *priv, struct wpa_driver_scan_params *params, 2667 u32 interval); 2668 2669 /** 2670 * stop_sched_scan - Request the driver to stop a scheduled scan 2671 * @priv: Private driver interface data 2672 * Returns: 0 on success, -1 on failure 2673 * 2674 * This should cause the scheduled scan to be stopped and 2675 * results should stop being sent. Must be supported if 2676 * sched_scan is supported. 2677 */ 2678 int (*stop_sched_scan)(void *priv); 2679 2680 /** 2681 * poll_client - Probe (null data or such) the given station 2682 * @priv: Private driver interface data 2683 * @own_addr: MAC address of sending interface 2684 * @addr: MAC address of the station to probe 2685 * @qos: Indicates whether station is QoS station 2686 * 2687 * This function is used to verify whether an associated station is 2688 * still present. This function does not need to be implemented if the 2689 * driver provides such inactivity polling mechanism. 2690 */ 2691 void (*poll_client)(void *priv, const u8 *own_addr, 2692 const u8 *addr, int qos); 2693 2694 /** 2695 * radio_disable - Disable/enable radio 2696 * @priv: Private driver interface data 2697 * @disabled: 1=disable 0=enable radio 2698 * Returns: 0 on success, -1 on failure 2699 * 2700 * This optional command is for testing purposes. It can be used to 2701 * disable the radio on a testbed device to simulate out-of-radio-range 2702 * conditions. 2703 */ 2704 int (*radio_disable)(void *priv, int disabled); 2705 2706 /** 2707 * switch_channel - Announce channel switch and migrate the GO to the 2708 * given frequency 2709 * @priv: Private driver interface data 2710 * @settings: Settings for CSA period and new channel 2711 * Returns: 0 on success, -1 on failure 2712 * 2713 * This function is used to move the GO to the legacy STA channel to 2714 * avoid frequency conflict in single channel concurrency. 2715 */ 2716 int (*switch_channel)(void *priv, struct csa_settings *settings); 2717 2718 /** 2719 * start_dfs_cac - Listen for radar interference on the channel 2720 * @priv: Private driver interface data 2721 * @freq: Channel parameters 2722 * Returns: 0 on success, -1 on failure 2723 */ 2724 int (*start_dfs_cac)(void *priv, struct hostapd_freq_params *freq); 2725 2726 /** 2727 * stop_ap - Removes beacon from AP 2728 * @priv: Private driver interface data 2729 * Returns: 0 on success, -1 on failure (or if not supported) 2730 * 2731 * This optional function can be used to disable AP mode related 2732 * configuration. Unlike deinit_ap, it does not change to station 2733 * mode. 2734 */ 2735 int (*stop_ap)(void *priv); 2736 2737 /** 2738 * get_survey - Retrieve survey data 2739 * @priv: Private driver interface data 2740 * @freq: If set, survey data for the specified frequency is only 2741 * being requested. If not set, all survey data is requested. 2742 * Returns: 0 on success, -1 on failure 2743 * 2744 * Use this to retrieve: 2745 * 2746 * - the observed channel noise floor 2747 * - the amount of time we have spent on the channel 2748 * - the amount of time during which we have spent on the channel that 2749 * the radio has determined the medium is busy and we cannot 2750 * transmit 2751 * - the amount of time we have spent receiving data 2752 * - the amount of time we have spent transmitting data 2753 * 2754 * This data can be used for spectrum heuristics. One example is 2755 * Automatic Channel Selection (ACS). The channel survey data is 2756 * kept on a linked list on the channel data, one entry is added 2757 * for each survey. The min_nf of the channel is updated for each 2758 * survey. 2759 */ 2760 int (*get_survey)(void *priv, unsigned int freq); 2761 2762 /** 2763 * status - Get driver interface status information 2764 * @priv: Private driver interface data 2765 * @buf: Buffer for printing tou the status information 2766 * @buflen: Maximum length of the buffer 2767 * Returns: Length of written status information or -1 on failure 2768 */ 2769 int (*status)(void *priv, char *buf, size_t buflen); 2770}; 2771 2772 2773/** 2774 * enum wpa_event_type - Event type for wpa_supplicant_event() calls 2775 */ 2776enum wpa_event_type { 2777 /** 2778 * EVENT_ASSOC - Association completed 2779 * 2780 * This event needs to be delivered when the driver completes IEEE 2781 * 802.11 association or reassociation successfully. 2782 * wpa_driver_ops::get_bssid() is expected to provide the current BSSID 2783 * after this event has been generated. In addition, optional 2784 * EVENT_ASSOCINFO may be generated just before EVENT_ASSOC to provide 2785 * more information about the association. If the driver interface gets 2786 * both of these events at the same time, it can also include the 2787 * assoc_info data in EVENT_ASSOC call. 2788 */ 2789 EVENT_ASSOC, 2790 2791 /** 2792 * EVENT_DISASSOC - Association lost 2793 * 2794 * This event should be called when association is lost either due to 2795 * receiving deauthenticate or disassociate frame from the AP or when 2796 * sending either of these frames to the current AP. If the driver 2797 * supports separate deauthentication event, EVENT_DISASSOC should only 2798 * be used for disassociation and EVENT_DEAUTH for deauthentication. 2799 * In AP mode, union wpa_event_data::disassoc_info is required. 2800 */ 2801 EVENT_DISASSOC, 2802 2803 /** 2804 * EVENT_MICHAEL_MIC_FAILURE - Michael MIC (TKIP) detected 2805 * 2806 * This event must be delivered when a Michael MIC error is detected by 2807 * the local driver. Additional data for event processing is 2808 * provided with union wpa_event_data::michael_mic_failure. This 2809 * information is used to request new encyption key and to initiate 2810 * TKIP countermeasures if needed. 2811 */ 2812 EVENT_MICHAEL_MIC_FAILURE, 2813 2814 /** 2815 * EVENT_SCAN_RESULTS - Scan results available 2816 * 2817 * This event must be called whenever scan results are available to be 2818 * fetched with struct wpa_driver_ops::get_scan_results(). This event 2819 * is expected to be used some time after struct wpa_driver_ops::scan() 2820 * is called. If the driver provides an unsolicited event when the scan 2821 * has been completed, this event can be used to trigger 2822 * EVENT_SCAN_RESULTS call. If such event is not available from the 2823 * driver, the driver wrapper code is expected to use a registered 2824 * timeout to generate EVENT_SCAN_RESULTS call after the time that the 2825 * scan is expected to be completed. Optional information about 2826 * completed scan can be provided with union wpa_event_data::scan_info. 2827 */ 2828 EVENT_SCAN_RESULTS, 2829 2830 /** 2831 * EVENT_ASSOCINFO - Report optional extra information for association 2832 * 2833 * This event can be used to report extra association information for 2834 * EVENT_ASSOC processing. This extra information includes IEs from 2835 * association frames and Beacon/Probe Response frames in union 2836 * wpa_event_data::assoc_info. EVENT_ASSOCINFO must be send just before 2837 * EVENT_ASSOC. Alternatively, the driver interface can include 2838 * assoc_info data in the EVENT_ASSOC call if it has all the 2839 * information available at the same point. 2840 */ 2841 EVENT_ASSOCINFO, 2842 2843 /** 2844 * EVENT_INTERFACE_STATUS - Report interface status changes 2845 * 2846 * This optional event can be used to report changes in interface 2847 * status (interface added/removed) using union 2848 * wpa_event_data::interface_status. This can be used to trigger 2849 * wpa_supplicant to stop and re-start processing for the interface, 2850 * e.g., when a cardbus card is ejected/inserted. 2851 */ 2852 EVENT_INTERFACE_STATUS, 2853 2854 /** 2855 * EVENT_PMKID_CANDIDATE - Report a candidate AP for pre-authentication 2856 * 2857 * This event can be used to inform wpa_supplicant about candidates for 2858 * RSN (WPA2) pre-authentication. If wpa_supplicant is not responsible 2859 * for scan request (ap_scan=2 mode), this event is required for 2860 * pre-authentication. If wpa_supplicant is performing scan request 2861 * (ap_scan=1), this event is optional since scan results can be used 2862 * to add pre-authentication candidates. union 2863 * wpa_event_data::pmkid_candidate is used to report the BSSID of the 2864 * candidate and priority of the candidate, e.g., based on the signal 2865 * strength, in order to try to pre-authenticate first with candidates 2866 * that are most likely targets for re-association. 2867 * 2868 * EVENT_PMKID_CANDIDATE can be called whenever the driver has updates 2869 * on the candidate list. In addition, it can be called for the current 2870 * AP and APs that have existing PMKSA cache entries. wpa_supplicant 2871 * will automatically skip pre-authentication in cases where a valid 2872 * PMKSA exists. When more than one candidate exists, this event should 2873 * be generated once for each candidate. 2874 * 2875 * Driver will be notified about successful pre-authentication with 2876 * struct wpa_driver_ops::add_pmkid() calls. 2877 */ 2878 EVENT_PMKID_CANDIDATE, 2879 2880 /** 2881 * EVENT_STKSTART - Request STK handshake (MLME-STKSTART.request) 2882 * 2883 * This event can be used to inform wpa_supplicant about desire to set 2884 * up secure direct link connection between two stations as defined in 2885 * IEEE 802.11e with a new PeerKey mechanism that replaced the original 2886 * STAKey negotiation. The caller will need to set peer address for the 2887 * event. 2888 */ 2889 EVENT_STKSTART, 2890 2891 /** 2892 * EVENT_TDLS - Request TDLS operation 2893 * 2894 * This event can be used to request a TDLS operation to be performed. 2895 */ 2896 EVENT_TDLS, 2897 2898 /** 2899 * EVENT_FT_RESPONSE - Report FT (IEEE 802.11r) response IEs 2900 * 2901 * The driver is expected to report the received FT IEs from 2902 * FT authentication sequence from the AP. The FT IEs are included in 2903 * the extra information in union wpa_event_data::ft_ies. 2904 */ 2905 EVENT_FT_RESPONSE, 2906 2907 /** 2908 * EVENT_IBSS_RSN_START - Request RSN authentication in IBSS 2909 * 2910 * The driver can use this event to inform wpa_supplicant about a STA 2911 * in an IBSS with which protected frames could be exchanged. This 2912 * event starts RSN authentication with the other STA to authenticate 2913 * the STA and set up encryption keys with it. 2914 */ 2915 EVENT_IBSS_RSN_START, 2916 2917 /** 2918 * EVENT_AUTH - Authentication result 2919 * 2920 * This event should be called when authentication attempt has been 2921 * completed. This is only used if the driver supports separate 2922 * authentication step (struct wpa_driver_ops::authenticate). 2923 * Information about authentication result is included in 2924 * union wpa_event_data::auth. 2925 */ 2926 EVENT_AUTH, 2927 2928 /** 2929 * EVENT_DEAUTH - Authentication lost 2930 * 2931 * This event should be called when authentication is lost either due 2932 * to receiving deauthenticate frame from the AP or when sending that 2933 * frame to the current AP. 2934 * In AP mode, union wpa_event_data::deauth_info is required. 2935 */ 2936 EVENT_DEAUTH, 2937 2938 /** 2939 * EVENT_ASSOC_REJECT - Association rejected 2940 * 2941 * This event should be called when (re)association attempt has been 2942 * rejected by the AP. Information about the association response is 2943 * included in union wpa_event_data::assoc_reject. 2944 */ 2945 EVENT_ASSOC_REJECT, 2946 2947 /** 2948 * EVENT_AUTH_TIMED_OUT - Authentication timed out 2949 */ 2950 EVENT_AUTH_TIMED_OUT, 2951 2952 /** 2953 * EVENT_ASSOC_TIMED_OUT - Association timed out 2954 */ 2955 EVENT_ASSOC_TIMED_OUT, 2956 2957 /** 2958 * EVENT_FT_RRB_RX - FT (IEEE 802.11r) RRB frame received 2959 */ 2960 EVENT_FT_RRB_RX, 2961 2962 /** 2963 * EVENT_WPS_BUTTON_PUSHED - Report hardware push button press for WPS 2964 */ 2965 EVENT_WPS_BUTTON_PUSHED, 2966 2967 /** 2968 * EVENT_TX_STATUS - Report TX status 2969 */ 2970 EVENT_TX_STATUS, 2971 2972 /** 2973 * EVENT_RX_FROM_UNKNOWN - Report RX from unknown STA 2974 */ 2975 EVENT_RX_FROM_UNKNOWN, 2976 2977 /** 2978 * EVENT_RX_MGMT - Report RX of a management frame 2979 */ 2980 EVENT_RX_MGMT, 2981 2982 /** 2983 * EVENT_REMAIN_ON_CHANNEL - Remain-on-channel duration started 2984 * 2985 * This event is used to indicate when the driver has started the 2986 * requested remain-on-channel duration. Information about the 2987 * operation is included in union wpa_event_data::remain_on_channel. 2988 */ 2989 EVENT_REMAIN_ON_CHANNEL, 2990 2991 /** 2992 * EVENT_CANCEL_REMAIN_ON_CHANNEL - Remain-on-channel timed out 2993 * 2994 * This event is used to indicate when the driver has completed 2995 * remain-on-channel duration, i.e., may noot be available on the 2996 * requested channel anymore. Information about the 2997 * operation is included in union wpa_event_data::remain_on_channel. 2998 */ 2999 EVENT_CANCEL_REMAIN_ON_CHANNEL, 3000 3001 /** 3002 * EVENT_MLME_RX - Report reception of frame for MLME (test use only) 3003 * 3004 * This event is used only by driver_test.c and userspace MLME. 3005 */ 3006 EVENT_MLME_RX, 3007 3008 /** 3009 * EVENT_RX_PROBE_REQ - Indicate received Probe Request frame 3010 * 3011 * This event is used to indicate when a Probe Request frame has been 3012 * received. Information about the received frame is included in 3013 * union wpa_event_data::rx_probe_req. The driver is required to report 3014 * these events only after successfully completed probe_req_report() 3015 * commands to request the events (i.e., report parameter is non-zero) 3016 * in station mode. In AP mode, Probe Request frames should always be 3017 * reported. 3018 */ 3019 EVENT_RX_PROBE_REQ, 3020 3021 /** 3022 * EVENT_NEW_STA - New wired device noticed 3023 * 3024 * This event is used to indicate that a new device has been detected 3025 * in a network that does not use association-like functionality (i.e., 3026 * mainly wired Ethernet). This can be used to start EAPOL 3027 * authenticator when receiving a frame from a device. The address of 3028 * the device is included in union wpa_event_data::new_sta. 3029 */ 3030 EVENT_NEW_STA, 3031 3032 /** 3033 * EVENT_EAPOL_RX - Report received EAPOL frame 3034 * 3035 * When in AP mode with hostapd, this event is required to be used to 3036 * deliver the receive EAPOL frames from the driver. With 3037 * %wpa_supplicant, this event is used only if the send_eapol() handler 3038 * is used to override the use of l2_packet for EAPOL frame TX. 3039 */ 3040 EVENT_EAPOL_RX, 3041 3042 /** 3043 * EVENT_SIGNAL_CHANGE - Indicate change in signal strength 3044 * 3045 * This event is used to indicate changes in the signal strength 3046 * observed in frames received from the current AP if signal strength 3047 * monitoring has been enabled with signal_monitor(). 3048 */ 3049 EVENT_SIGNAL_CHANGE, 3050 3051 /** 3052 * EVENT_INTERFACE_ENABLED - Notify that interface was enabled 3053 * 3054 * This event is used to indicate that the interface was enabled after 3055 * having been previously disabled, e.g., due to rfkill. 3056 */ 3057 EVENT_INTERFACE_ENABLED, 3058 3059 /** 3060 * EVENT_INTERFACE_DISABLED - Notify that interface was disabled 3061 * 3062 * This event is used to indicate that the interface was disabled, 3063 * e.g., due to rfkill. 3064 */ 3065 EVENT_INTERFACE_DISABLED, 3066 3067 /** 3068 * EVENT_CHANNEL_LIST_CHANGED - Channel list changed 3069 * 3070 * This event is used to indicate that the channel list has changed, 3071 * e.g., because of a regulatory domain change triggered by scan 3072 * results including an AP advertising a country code. 3073 */ 3074 EVENT_CHANNEL_LIST_CHANGED, 3075 3076 /** 3077 * EVENT_INTERFACE_UNAVAILABLE - Notify that interface is unavailable 3078 * 3079 * This event is used to indicate that the driver cannot maintain this 3080 * interface in its operation mode anymore. The most likely use for 3081 * this is to indicate that AP mode operation is not available due to 3082 * operating channel would need to be changed to a DFS channel when 3083 * the driver does not support radar detection and another virtual 3084 * interfaces caused the operating channel to change. Other similar 3085 * resource conflicts could also trigger this for station mode 3086 * interfaces. 3087 */ 3088 EVENT_INTERFACE_UNAVAILABLE, 3089 3090 /** 3091 * EVENT_BEST_CHANNEL 3092 * 3093 * Driver generates this event whenever it detects a better channel 3094 * (e.g., based on RSSI or channel use). This information can be used 3095 * to improve channel selection for a new AP/P2P group. 3096 */ 3097 EVENT_BEST_CHANNEL, 3098 3099 /** 3100 * EVENT_UNPROT_DEAUTH - Unprotected Deauthentication frame received 3101 * 3102 * This event should be called when a Deauthentication frame is dropped 3103 * due to it not being protected (MFP/IEEE 802.11w). 3104 * union wpa_event_data::unprot_deauth is required to provide more 3105 * details of the frame. 3106 */ 3107 EVENT_UNPROT_DEAUTH, 3108 3109 /** 3110 * EVENT_UNPROT_DISASSOC - Unprotected Disassociation frame received 3111 * 3112 * This event should be called when a Disassociation frame is dropped 3113 * due to it not being protected (MFP/IEEE 802.11w). 3114 * union wpa_event_data::unprot_disassoc is required to provide more 3115 * details of the frame. 3116 */ 3117 EVENT_UNPROT_DISASSOC, 3118 3119 /** 3120 * EVENT_STATION_LOW_ACK 3121 * 3122 * Driver generates this event whenever it detected that a particular 3123 * station was lost. Detection can be through massive transmission 3124 * failures for example. 3125 */ 3126 EVENT_STATION_LOW_ACK, 3127 3128 /** 3129 * EVENT_IBSS_PEER_LOST - IBSS peer not reachable anymore 3130 */ 3131 EVENT_IBSS_PEER_LOST, 3132 3133 /** 3134 * EVENT_DRIVER_GTK_REKEY - Device/driver did GTK rekey 3135 * 3136 * This event carries the new replay counter to notify wpa_supplicant 3137 * of the current EAPOL-Key Replay Counter in case the driver/firmware 3138 * completed Group Key Handshake while the host (including 3139 * wpa_supplicant was sleeping). 3140 */ 3141 EVENT_DRIVER_GTK_REKEY, 3142 3143 /** 3144 * EVENT_SCHED_SCAN_STOPPED - Scheduled scan was stopped 3145 */ 3146 EVENT_SCHED_SCAN_STOPPED, 3147 3148 /** 3149 * EVENT_DRIVER_CLIENT_POLL_OK - Station responded to poll 3150 * 3151 * This event indicates that the station responded to the poll 3152 * initiated with @poll_client. 3153 */ 3154 EVENT_DRIVER_CLIENT_POLL_OK, 3155 3156 /** 3157 * EVENT_EAPOL_TX_STATUS - notify of EAPOL TX status 3158 */ 3159 EVENT_EAPOL_TX_STATUS, 3160 3161 /** 3162 * EVENT_CH_SWITCH - AP or GO decided to switch channels 3163 * 3164 * Described in wpa_event_data.ch_switch 3165 * */ 3166 EVENT_CH_SWITCH, 3167 3168 /** 3169 * EVENT_WNM - Request WNM operation 3170 * 3171 * This event can be used to request a WNM operation to be performed. 3172 */ 3173 EVENT_WNM, 3174 3175 /** 3176 * EVENT_CONNECT_FAILED_REASON - Connection failure reason in AP mode 3177 * 3178 * This event indicates that the driver reported a connection failure 3179 * with the specified client (for example, max client reached, etc.) in 3180 * AP mode. 3181 */ 3182 EVENT_CONNECT_FAILED_REASON, 3183 3184 /** 3185 * EVENT_RADAR_DETECTED - Notify of radar detection 3186 * 3187 * A radar has been detected on the supplied frequency, hostapd should 3188 * react accordingly (e.g., change channel). 3189 */ 3190 EVENT_DFS_RADAR_DETECTED, 3191 3192 /** 3193 * EVENT_CAC_FINISHED - Notify that channel availability check has been completed 3194 * 3195 * After a successful CAC, the channel can be marked clear and used. 3196 */ 3197 EVENT_DFS_CAC_FINISHED, 3198 3199 /** 3200 * EVENT_CAC_ABORTED - Notify that channel availability check has been aborted 3201 * 3202 * The CAC was not successful, and the channel remains in the previous 3203 * state. This may happen due to a radar beeing detected or other 3204 * external influences. 3205 */ 3206 EVENT_DFS_CAC_ABORTED, 3207 3208 /** 3209 * EVENT_DFS_CAC_NOP_FINISHED - Notify that non-occupancy period is over 3210 * 3211 * The channel which was previously unavailable is now available again. 3212 */ 3213 EVENT_DFS_NOP_FINISHED, 3214 3215 /** 3216 * EVENT_SURVEY - Received survey data 3217 * 3218 * This event gets triggered when a driver query is issued for survey 3219 * data and the requested data becomes available. The returned data is 3220 * stored in struct survey_results. The results provide at most one 3221 * survey entry for each frequency and at minimum will provide one 3222 * survey entry for one frequency. The survey data can be os_malloc()'d 3223 * and then os_free()'d, so the event callback must only copy data. 3224 */ 3225 EVENT_SURVEY, 3226 3227 /** 3228 * EVENT_SCAN_STARTED - Scan started 3229 * 3230 * This indicates that driver has started a scan operation either based 3231 * on a request from wpa_supplicant/hostapd or from another application. 3232 * EVENT_SCAN_RESULTS is used to indicate when the scan has been 3233 * completed (either successfully or by getting cancelled). 3234 */ 3235 EVENT_SCAN_STARTED, 3236 3237 /** 3238 * EVENT_AVOID_FREQUENCIES - Received avoid frequency range 3239 * 3240 * This event indicates a set of frequency ranges that should be avoided 3241 * to reduce issues due to interference or internal co-existence 3242 * information in the driver. 3243 */ 3244 EVENT_AVOID_FREQUENCIES 3245}; 3246 3247 3248/** 3249 * struct freq_survey - Channel survey info 3250 * 3251 * @ifidx: Interface index in which this survey was observed 3252 * @freq: Center of frequency of the surveyed channel 3253 * @nf: Channel noise floor in dBm 3254 * @channel_time: Amount of time in ms the radio spent on the channel 3255 * @channel_time_busy: Amount of time in ms the radio detected some signal 3256 * that indicated to the radio the channel was not clear 3257 * @channel_time_rx: Amount of time the radio spent receiving data 3258 * @channel_time_tx: Amount of time the radio spent transmitting data 3259 * @filled: bitmask indicating which fields have been reported, see 3260 * SURVEY_HAS_* defines. 3261 * @list: Internal list pointers 3262 */ 3263struct freq_survey { 3264 u32 ifidx; 3265 unsigned int freq; 3266 s8 nf; 3267 u64 channel_time; 3268 u64 channel_time_busy; 3269 u64 channel_time_rx; 3270 u64 channel_time_tx; 3271 unsigned int filled; 3272 struct dl_list list; 3273}; 3274 3275#define SURVEY_HAS_NF BIT(0) 3276#define SURVEY_HAS_CHAN_TIME BIT(1) 3277#define SURVEY_HAS_CHAN_TIME_BUSY BIT(2) 3278#define SURVEY_HAS_CHAN_TIME_RX BIT(3) 3279#define SURVEY_HAS_CHAN_TIME_TX BIT(4) 3280 3281 3282/** 3283 * union wpa_event_data - Additional data for wpa_supplicant_event() calls 3284 */ 3285union wpa_event_data { 3286 /** 3287 * struct assoc_info - Data for EVENT_ASSOC and EVENT_ASSOCINFO events 3288 * 3289 * This structure is optional for EVENT_ASSOC calls and required for 3290 * EVENT_ASSOCINFO calls. By using EVENT_ASSOC with this data, the 3291 * driver interface does not need to generate separate EVENT_ASSOCINFO 3292 * calls. 3293 */ 3294 struct assoc_info { 3295 /** 3296 * reassoc - Flag to indicate association or reassociation 3297 */ 3298 int reassoc; 3299 3300 /** 3301 * req_ies - (Re)Association Request IEs 3302 * 3303 * If the driver generates WPA/RSN IE, this event data must be 3304 * returned for WPA handshake to have needed information. If 3305 * wpa_supplicant-generated WPA/RSN IE is used, this 3306 * information event is optional. 3307 * 3308 * This should start with the first IE (fixed fields before IEs 3309 * are not included). 3310 */ 3311 const u8 *req_ies; 3312 3313 /** 3314 * req_ies_len - Length of req_ies in bytes 3315 */ 3316 size_t req_ies_len; 3317 3318 /** 3319 * resp_ies - (Re)Association Response IEs 3320 * 3321 * Optional association data from the driver. This data is not 3322 * required WPA, but may be useful for some protocols and as 3323 * such, should be reported if this is available to the driver 3324 * interface. 3325 * 3326 * This should start with the first IE (fixed fields before IEs 3327 * are not included). 3328 */ 3329 const u8 *resp_ies; 3330 3331 /** 3332 * resp_ies_len - Length of resp_ies in bytes 3333 */ 3334 size_t resp_ies_len; 3335 3336 /** 3337 * beacon_ies - Beacon or Probe Response IEs 3338 * 3339 * Optional Beacon/ProbeResp data: IEs included in Beacon or 3340 * Probe Response frames from the current AP (i.e., the one 3341 * that the client just associated with). This information is 3342 * used to update WPA/RSN IE for the AP. If this field is not 3343 * set, the results from previous scan will be used. If no 3344 * data for the new AP is found, scan results will be requested 3345 * again (without scan request). At this point, the driver is 3346 * expected to provide WPA/RSN IE for the AP (if WPA/WPA2 is 3347 * used). 3348 * 3349 * This should start with the first IE (fixed fields before IEs 3350 * are not included). 3351 */ 3352 const u8 *beacon_ies; 3353 3354 /** 3355 * beacon_ies_len - Length of beacon_ies */ 3356 size_t beacon_ies_len; 3357 3358 /** 3359 * freq - Frequency of the operational channel in MHz 3360 */ 3361 unsigned int freq; 3362 3363 /** 3364 * addr - Station address (for AP mode) 3365 */ 3366 const u8 *addr; 3367 } assoc_info; 3368 3369 /** 3370 * struct disassoc_info - Data for EVENT_DISASSOC events 3371 */ 3372 struct disassoc_info { 3373 /** 3374 * addr - Station address (for AP mode) 3375 */ 3376 const u8 *addr; 3377 3378 /** 3379 * reason_code - Reason Code (host byte order) used in 3380 * Deauthentication frame 3381 */ 3382 u16 reason_code; 3383 3384 /** 3385 * ie - Optional IE(s) in Disassociation frame 3386 */ 3387 const u8 *ie; 3388 3389 /** 3390 * ie_len - Length of ie buffer in octets 3391 */ 3392 size_t ie_len; 3393 3394 /** 3395 * locally_generated - Whether the frame was locally generated 3396 */ 3397 int locally_generated; 3398 } disassoc_info; 3399 3400 /** 3401 * struct deauth_info - Data for EVENT_DEAUTH events 3402 */ 3403 struct deauth_info { 3404 /** 3405 * addr - Station address (for AP mode) 3406 */ 3407 const u8 *addr; 3408 3409 /** 3410 * reason_code - Reason Code (host byte order) used in 3411 * Deauthentication frame 3412 */ 3413 u16 reason_code; 3414 3415 /** 3416 * ie - Optional IE(s) in Deauthentication frame 3417 */ 3418 const u8 *ie; 3419 3420 /** 3421 * ie_len - Length of ie buffer in octets 3422 */ 3423 size_t ie_len; 3424 3425 /** 3426 * locally_generated - Whether the frame was locally generated 3427 */ 3428 int locally_generated; 3429 } deauth_info; 3430 3431 /** 3432 * struct michael_mic_failure - Data for EVENT_MICHAEL_MIC_FAILURE 3433 */ 3434 struct michael_mic_failure { 3435 int unicast; 3436 const u8 *src; 3437 } michael_mic_failure; 3438 3439 /** 3440 * struct interface_status - Data for EVENT_INTERFACE_STATUS 3441 */ 3442 struct interface_status { 3443 char ifname[100]; 3444 enum { 3445 EVENT_INTERFACE_ADDED, EVENT_INTERFACE_REMOVED 3446 } ievent; 3447 } interface_status; 3448 3449 /** 3450 * struct pmkid_candidate - Data for EVENT_PMKID_CANDIDATE 3451 */ 3452 struct pmkid_candidate { 3453 /** BSSID of the PMKID candidate */ 3454 u8 bssid[ETH_ALEN]; 3455 /** Smaller the index, higher the priority */ 3456 int index; 3457 /** Whether RSN IE includes pre-authenticate flag */ 3458 int preauth; 3459 } pmkid_candidate; 3460 3461 /** 3462 * struct stkstart - Data for EVENT_STKSTART 3463 */ 3464 struct stkstart { 3465 u8 peer[ETH_ALEN]; 3466 } stkstart; 3467 3468 /** 3469 * struct tdls - Data for EVENT_TDLS 3470 */ 3471 struct tdls { 3472 u8 peer[ETH_ALEN]; 3473 enum { 3474 TDLS_REQUEST_SETUP, 3475 TDLS_REQUEST_TEARDOWN 3476 } oper; 3477 u16 reason_code; /* for teardown */ 3478 } tdls; 3479 3480 /** 3481 * struct wnm - Data for EVENT_WNM 3482 */ 3483 struct wnm { 3484 u8 addr[ETH_ALEN]; 3485 enum { 3486 WNM_OPER_SLEEP, 3487 } oper; 3488 enum { 3489 WNM_SLEEP_ENTER, 3490 WNM_SLEEP_EXIT 3491 } sleep_action; 3492 int sleep_intval; 3493 u16 reason_code; 3494 u8 *buf; 3495 u16 buf_len; 3496 } wnm; 3497 3498 /** 3499 * struct ft_ies - FT information elements (EVENT_FT_RESPONSE) 3500 * 3501 * During FT (IEEE 802.11r) authentication sequence, the driver is 3502 * expected to use this event to report received FT IEs (MDIE, FTIE, 3503 * RSN IE, TIE, possible resource request) to the supplicant. The FT 3504 * IEs for the next message will be delivered through the 3505 * struct wpa_driver_ops::update_ft_ies() callback. 3506 */ 3507 struct ft_ies { 3508 const u8 *ies; 3509 size_t ies_len; 3510 int ft_action; 3511 u8 target_ap[ETH_ALEN]; 3512 /** Optional IE(s), e.g., WMM TSPEC(s), for RIC-Request */ 3513 const u8 *ric_ies; 3514 /** Length of ric_ies buffer in octets */ 3515 size_t ric_ies_len; 3516 } ft_ies; 3517 3518 /** 3519 * struct ibss_rsn_start - Data for EVENT_IBSS_RSN_START 3520 */ 3521 struct ibss_rsn_start { 3522 u8 peer[ETH_ALEN]; 3523 } ibss_rsn_start; 3524 3525 /** 3526 * struct auth_info - Data for EVENT_AUTH events 3527 */ 3528 struct auth_info { 3529 u8 peer[ETH_ALEN]; 3530 u8 bssid[ETH_ALEN]; 3531 u16 auth_type; 3532 u16 auth_transaction; 3533 u16 status_code; 3534 const u8 *ies; 3535 size_t ies_len; 3536 } auth; 3537 3538 /** 3539 * struct assoc_reject - Data for EVENT_ASSOC_REJECT events 3540 */ 3541 struct assoc_reject { 3542 /** 3543 * bssid - BSSID of the AP that rejected association 3544 */ 3545 const u8 *bssid; 3546 3547 /** 3548 * resp_ies - (Re)Association Response IEs 3549 * 3550 * Optional association data from the driver. This data is not 3551 * required WPA, but may be useful for some protocols and as 3552 * such, should be reported if this is available to the driver 3553 * interface. 3554 * 3555 * This should start with the first IE (fixed fields before IEs 3556 * are not included). 3557 */ 3558 const u8 *resp_ies; 3559 3560 /** 3561 * resp_ies_len - Length of resp_ies in bytes 3562 */ 3563 size_t resp_ies_len; 3564 3565 /** 3566 * status_code - Status Code from (Re)association Response 3567 */ 3568 u16 status_code; 3569 } assoc_reject; 3570 3571 struct timeout_event { 3572 u8 addr[ETH_ALEN]; 3573 } timeout_event; 3574 3575 /** 3576 * struct ft_rrb_rx - Data for EVENT_FT_RRB_RX events 3577 */ 3578 struct ft_rrb_rx { 3579 const u8 *src; 3580 const u8 *data; 3581 size_t data_len; 3582 } ft_rrb_rx; 3583 3584 /** 3585 * struct tx_status - Data for EVENT_TX_STATUS events 3586 */ 3587 struct tx_status { 3588 u16 type; 3589 u16 stype; 3590 const u8 *dst; 3591 const u8 *data; 3592 size_t data_len; 3593 int ack; 3594 } tx_status; 3595 3596 /** 3597 * struct rx_from_unknown - Data for EVENT_RX_FROM_UNKNOWN events 3598 */ 3599 struct rx_from_unknown { 3600 const u8 *bssid; 3601 const u8 *addr; 3602 int wds; 3603 } rx_from_unknown; 3604 3605 /** 3606 * struct rx_mgmt - Data for EVENT_RX_MGMT events 3607 */ 3608 struct rx_mgmt { 3609 const u8 *frame; 3610 size_t frame_len; 3611 u32 datarate; 3612 3613 /** 3614 * drv_priv - Pointer to store driver private BSS information 3615 * 3616 * If not set to NULL, this is used for comparison with 3617 * hostapd_data->drv_priv to determine which BSS should process 3618 * the frame. 3619 */ 3620 void *drv_priv; 3621 3622 /** 3623 * freq - Frequency (in MHz) on which the frame was received 3624 */ 3625 int freq; 3626 3627 /** 3628 * ssi_signal - Signal strength in dBm (or 0 if not available) 3629 */ 3630 int ssi_signal; 3631 } rx_mgmt; 3632 3633 /** 3634 * struct remain_on_channel - Data for EVENT_REMAIN_ON_CHANNEL events 3635 * 3636 * This is also used with EVENT_CANCEL_REMAIN_ON_CHANNEL events. 3637 */ 3638 struct remain_on_channel { 3639 /** 3640 * freq - Channel frequency in MHz 3641 */ 3642 unsigned int freq; 3643 3644 /** 3645 * duration - Duration to remain on the channel in milliseconds 3646 */ 3647 unsigned int duration; 3648 } remain_on_channel; 3649 3650 /** 3651 * struct scan_info - Optional data for EVENT_SCAN_RESULTS events 3652 * @aborted: Whether the scan was aborted 3653 * @freqs: Scanned frequencies in MHz (%NULL = all channels scanned) 3654 * @num_freqs: Number of entries in freqs array 3655 * @ssids: Scanned SSIDs (%NULL or zero-length SSID indicates wildcard 3656 * SSID) 3657 * @num_ssids: Number of entries in ssids array 3658 */ 3659 struct scan_info { 3660 int aborted; 3661 const int *freqs; 3662 size_t num_freqs; 3663 struct wpa_driver_scan_ssid ssids[WPAS_MAX_SCAN_SSIDS]; 3664 size_t num_ssids; 3665 } scan_info; 3666 3667 /** 3668 * struct mlme_rx - Data for EVENT_MLME_RX events 3669 */ 3670 struct mlme_rx { 3671 const u8 *buf; 3672 size_t len; 3673 int freq; 3674 int channel; 3675 int ssi; 3676 } mlme_rx; 3677 3678 /** 3679 * struct rx_probe_req - Data for EVENT_RX_PROBE_REQ events 3680 */ 3681 struct rx_probe_req { 3682 /** 3683 * sa - Source address of the received Probe Request frame 3684 */ 3685 const u8 *sa; 3686 3687 /** 3688 * da - Destination address of the received Probe Request frame 3689 * or %NULL if not available 3690 */ 3691 const u8 *da; 3692 3693 /** 3694 * bssid - BSSID of the received Probe Request frame or %NULL 3695 * if not available 3696 */ 3697 const u8 *bssid; 3698 3699 /** 3700 * ie - IEs from the Probe Request body 3701 */ 3702 const u8 *ie; 3703 3704 /** 3705 * ie_len - Length of ie buffer in octets 3706 */ 3707 size_t ie_len; 3708 3709 /** 3710 * signal - signal strength in dBm (or 0 if not available) 3711 */ 3712 int ssi_signal; 3713 } rx_probe_req; 3714 3715 /** 3716 * struct new_sta - Data for EVENT_NEW_STA events 3717 */ 3718 struct new_sta { 3719 const u8 *addr; 3720 } new_sta; 3721 3722 /** 3723 * struct eapol_rx - Data for EVENT_EAPOL_RX events 3724 */ 3725 struct eapol_rx { 3726 const u8 *src; 3727 const u8 *data; 3728 size_t data_len; 3729 } eapol_rx; 3730 3731 /** 3732 * signal_change - Data for EVENT_SIGNAL_CHANGE events 3733 */ 3734 struct wpa_signal_info signal_change; 3735 3736 /** 3737 * struct best_channel - Data for EVENT_BEST_CHANNEL events 3738 * @freq_24: Best 2.4 GHz band channel frequency in MHz 3739 * @freq_5: Best 5 GHz band channel frequency in MHz 3740 * @freq_overall: Best channel frequency in MHz 3741 * 3742 * 0 can be used to indicate no preference in either band. 3743 */ 3744 struct best_channel { 3745 int freq_24; 3746 int freq_5; 3747 int freq_overall; 3748 } best_chan; 3749 3750 struct unprot_deauth { 3751 const u8 *sa; 3752 const u8 *da; 3753 u16 reason_code; 3754 } unprot_deauth; 3755 3756 struct unprot_disassoc { 3757 const u8 *sa; 3758 const u8 *da; 3759 u16 reason_code; 3760 } unprot_disassoc; 3761 3762 /** 3763 * struct low_ack - Data for EVENT_STATION_LOW_ACK events 3764 * @addr: station address 3765 */ 3766 struct low_ack { 3767 u8 addr[ETH_ALEN]; 3768 } low_ack; 3769 3770 /** 3771 * struct ibss_peer_lost - Data for EVENT_IBSS_PEER_LOST 3772 */ 3773 struct ibss_peer_lost { 3774 u8 peer[ETH_ALEN]; 3775 } ibss_peer_lost; 3776 3777 /** 3778 * struct driver_gtk_rekey - Data for EVENT_DRIVER_GTK_REKEY 3779 */ 3780 struct driver_gtk_rekey { 3781 const u8 *bssid; 3782 const u8 *replay_ctr; 3783 } driver_gtk_rekey; 3784 3785 /** 3786 * struct client_poll - Data for EVENT_DRIVER_CLIENT_POLL_OK events 3787 * @addr: station address 3788 */ 3789 struct client_poll { 3790 u8 addr[ETH_ALEN]; 3791 } client_poll; 3792 3793 /** 3794 * struct eapol_tx_status 3795 * @dst: Original destination 3796 * @data: Data starting with IEEE 802.1X header (!) 3797 * @data_len: Length of data 3798 * @ack: Indicates ack or lost frame 3799 * 3800 * This corresponds to hapd_send_eapol if the frame sent 3801 * there isn't just reported as EVENT_TX_STATUS. 3802 */ 3803 struct eapol_tx_status { 3804 const u8 *dst; 3805 const u8 *data; 3806 int data_len; 3807 int ack; 3808 } eapol_tx_status; 3809 3810 /** 3811 * struct ch_switch 3812 * @freq: Frequency of new channel in MHz 3813 * @ht_enabled: Whether this is an HT channel 3814 * @ch_offset: Secondary channel offset 3815 * @ch_width: Channel width 3816 * @cf1: Center frequency 1 3817 * @cf2: Center frequency 2 3818 */ 3819 struct ch_switch { 3820 int freq; 3821 int ht_enabled; 3822 int ch_offset; 3823 enum chan_width ch_width; 3824 int cf1; 3825 int cf2; 3826 } ch_switch; 3827 3828 /** 3829 * struct connect_failed - Data for EVENT_CONNECT_FAILED_REASON 3830 * @addr: Remote client address 3831 * @code: Reason code for connection failure 3832 */ 3833 struct connect_failed_reason { 3834 u8 addr[ETH_ALEN]; 3835 enum { 3836 MAX_CLIENT_REACHED, 3837 BLOCKED_CLIENT 3838 } code; 3839 } connect_failed_reason; 3840 3841 /** 3842 * struct dfs_event - Data for radar detected events 3843 * @freq: Frequency of the channel in MHz 3844 */ 3845 struct dfs_event { 3846 int freq; 3847 int ht_enabled; 3848 int chan_offset; 3849 enum chan_width chan_width; 3850 int cf1; 3851 int cf2; 3852 } dfs_event; 3853 3854 /** 3855 * survey_results - Survey result data for EVENT_SURVEY 3856 * @freq_filter: Requested frequency survey filter, 0 if request 3857 * was for all survey data 3858 * @survey_list: Linked list of survey data 3859 */ 3860 struct survey_results { 3861 unsigned int freq_filter; 3862 struct dl_list survey_list; /* struct freq_survey */ 3863 } survey_results; 3864 3865 /** 3866 * channel_list_changed - Data for EVENT_CHANNEL_LIST_CHANGED 3867 * @initiator: Initiator of the regulatory change 3868 * @type: Regulatory change type 3869 * @alpha2: Country code (or "" if not available) 3870 */ 3871 struct channel_list_changed { 3872 enum reg_change_initiator initiator; 3873 enum reg_type type; 3874 char alpha2[3]; 3875 } channel_list_changed; 3876 3877 /** 3878 * freq_range - List of frequency ranges 3879 * 3880 * This is used as the data with EVENT_AVOID_FREQUENCIES. 3881 */ 3882 struct wpa_freq_range_list freq_range; 3883}; 3884 3885/** 3886 * wpa_supplicant_event - Report a driver event for wpa_supplicant 3887 * @ctx: Context pointer (wpa_s); this is the ctx variable registered 3888 * with struct wpa_driver_ops::init() 3889 * @event: event type (defined above) 3890 * @data: possible extra data for the event 3891 * 3892 * Driver wrapper code should call this function whenever an event is received 3893 * from the driver. 3894 */ 3895void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 3896 union wpa_event_data *data); 3897 3898 3899/* 3900 * The following inline functions are provided for convenience to simplify 3901 * event indication for some of the common events. 3902 */ 3903 3904static inline void drv_event_assoc(void *ctx, const u8 *addr, const u8 *ie, 3905 size_t ielen, int reassoc) 3906{ 3907 union wpa_event_data event; 3908 os_memset(&event, 0, sizeof(event)); 3909 event.assoc_info.reassoc = reassoc; 3910 event.assoc_info.req_ies = ie; 3911 event.assoc_info.req_ies_len = ielen; 3912 event.assoc_info.addr = addr; 3913 wpa_supplicant_event(ctx, EVENT_ASSOC, &event); 3914} 3915 3916static inline void drv_event_disassoc(void *ctx, const u8 *addr) 3917{ 3918 union wpa_event_data event; 3919 os_memset(&event, 0, sizeof(event)); 3920 event.disassoc_info.addr = addr; 3921 wpa_supplicant_event(ctx, EVENT_DISASSOC, &event); 3922} 3923 3924static inline void drv_event_eapol_rx(void *ctx, const u8 *src, const u8 *data, 3925 size_t data_len) 3926{ 3927 union wpa_event_data event; 3928 os_memset(&event, 0, sizeof(event)); 3929 event.eapol_rx.src = src; 3930 event.eapol_rx.data = data; 3931 event.eapol_rx.data_len = data_len; 3932 wpa_supplicant_event(ctx, EVENT_EAPOL_RX, &event); 3933} 3934 3935/* driver_common.c */ 3936void wpa_scan_results_free(struct wpa_scan_results *res); 3937 3938/* Convert wpa_event_type to a string for logging */ 3939const char * event_to_string(enum wpa_event_type event); 3940 3941/* NULL terminated array of linked in driver wrappers */ 3942extern struct wpa_driver_ops *wpa_drivers[]; 3943 3944#endif /* DRIVER_H */ 3945