2 * Driver interface definition
3 * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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.
20 #define WPA_SUPPLICANT_DRIVER_VERSION 4
22 #include "common/defs.h"
23 #include "utils/list.h"
25 #define HOSTAPD_CHAN_DISABLED 0x00000001
26 #define HOSTAPD_CHAN_NO_IR 0x00000002
27 #define HOSTAPD_CHAN_RADAR 0x00000008
28 #define HOSTAPD_CHAN_HT40PLUS 0x00000010
29 #define HOSTAPD_CHAN_HT40MINUS 0x00000020
30 #define HOSTAPD_CHAN_HT40 0x00000040
31 #define HOSTAPD_CHAN_SURVEY_LIST_INITIALIZED 0x00000080
33 #define HOSTAPD_CHAN_DFS_UNKNOWN 0x00000000
34 #define HOSTAPD_CHAN_DFS_USABLE 0x00000100
35 #define HOSTAPD_CHAN_DFS_UNAVAILABLE 0x00000200
36 #define HOSTAPD_CHAN_DFS_AVAILABLE 0x00000300
37 #define HOSTAPD_CHAN_DFS_MASK 0x00000300
39 #define HOSTAPD_CHAN_VHT_10_70 0x00000800
40 #define HOSTAPD_CHAN_VHT_30_50 0x00001000
41 #define HOSTAPD_CHAN_VHT_50_30 0x00002000
42 #define HOSTAPD_CHAN_VHT_70_10 0x00004000
44 #define HOSTAPD_CHAN_INDOOR_ONLY 0x00010000
45 #define HOSTAPD_CHAN_GO_CONCURRENT 0x00020000
48 * enum reg_change_initiator - Regulatory change initiator
50 enum reg_change_initiator {
54 REGDOM_SET_BY_COUNTRY_IE,
59 * enum reg_type - Regulatory change types
65 REGDOM_TYPE_CUSTOM_WORLD,
66 REGDOM_TYPE_INTERSECTION,
70 * struct hostapd_channel_data - Channel information
72 struct hostapd_channel_data {
74 * chan - Channel number (IEEE 802.11)
79 * freq - Frequency in MHz
84 * flag - Channel flags (HOSTAPD_CHAN_*)
89 * max_tx_power - Regulatory transmit power limit in dBm
94 * survey_list - Linked list of surveys (struct freq_survey)
96 struct dl_list survey_list;
99 * min_nf - Minimum observed noise floor, in dBm, based on all
100 * surveyed channel data
106 * interference_factor - Computed interference factor on this
107 * channel (used internally in src/ap/acs.c; driver wrappers do not
110 long double interference_factor;
111 #endif /* CONFIG_ACS */
114 * dfs_cac_ms - DFS CAC time in milliseconds
116 unsigned int dfs_cac_ms;
119 #define HOSTAPD_MODE_FLAG_HT_INFO_KNOWN BIT(0)
120 #define HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN BIT(1)
123 * struct hostapd_hw_modes - Supported hardware mode information
125 struct hostapd_hw_modes {
127 * mode - Hardware mode
129 enum hostapd_hw_mode mode;
132 * num_channels - Number of entries in the channels array
137 * channels - Array of supported channels
139 struct hostapd_channel_data *channels;
142 * num_rates - Number of entries in the rates array
147 * rates - Array of supported rates in 100 kbps units
152 * ht_capab - HT (IEEE 802.11n) capabilities
157 * mcs_set - MCS (IEEE 802.11n) rate parameters
162 * a_mpdu_params - A-MPDU (IEEE 802.11n) parameters
167 * vht_capab - VHT (IEEE 802.11ac) capabilities
172 * vht_mcs_set - VHT MCS (IEEE 802.11ac) rate parameters
176 unsigned int flags; /* HOSTAPD_MODE_FLAG_* */
180 #define IEEE80211_MODE_INFRA 0
181 #define IEEE80211_MODE_IBSS 1
182 #define IEEE80211_MODE_AP 2
183 #define IEEE80211_MODE_MESH 5
185 #define IEEE80211_CAP_ESS 0x0001
186 #define IEEE80211_CAP_IBSS 0x0002
187 #define IEEE80211_CAP_PRIVACY 0x0010
188 #define IEEE80211_CAP_RRM 0x1000
190 /* DMG (60 GHz) IEEE 802.11ad */
191 /* type - bits 0..1 */
192 #define IEEE80211_CAP_DMG_MASK 0x0003
193 #define IEEE80211_CAP_DMG_IBSS 0x0001 /* Tx by: STA */
194 #define IEEE80211_CAP_DMG_PBSS 0x0002 /* Tx by: PCP */
195 #define IEEE80211_CAP_DMG_AP 0x0003 /* Tx by: AP */
197 #define WPA_SCAN_QUAL_INVALID BIT(0)
198 #define WPA_SCAN_NOISE_INVALID BIT(1)
199 #define WPA_SCAN_LEVEL_INVALID BIT(2)
200 #define WPA_SCAN_LEVEL_DBM BIT(3)
201 #define WPA_SCAN_ASSOCIATED BIT(5)
204 * struct wpa_scan_res - Scan result for an BSS/IBSS
205 * @flags: information flags about the BSS/IBSS (WPA_SCAN_*)
207 * @freq: frequency of the channel in MHz (e.g., 2412 = channel 1)
208 * @beacon_int: beacon interval in TUs (host byte order)
209 * @caps: capability information field in host byte order
210 * @qual: signal quality
211 * @noise: noise level
212 * @level: signal level
214 * @age: Age of the information in milliseconds (i.e., how many milliseconds
215 * ago the last Beacon or Probe Response frame was received)
216 * @ie_len: length of the following IE field in octets
217 * @beacon_ie_len: length of the following Beacon IE field in octets
219 * This structure is used as a generic format for scan results from the
220 * driver. Each driver interface implementation is responsible for converting
221 * the driver or OS specific scan results into this format.
223 * If the driver does not support reporting all IEs, the IE data structure is
224 * constructed of the IEs that are available. This field will also need to
225 * include SSID in IE format. All drivers are encouraged to be extended to
226 * report all IEs to make it easier to support future additions.
228 * This structure data is followed by ie_len octets of IEs from Probe Response
229 * frame (or if the driver does not indicate source of IEs, these may also be
230 * from Beacon frame). After the first set of IEs, another set of IEs may follow
231 * (with beacon_ie_len octets of data) if the driver provides both IE sets.
233 struct wpa_scan_res {
245 size_t beacon_ie_len;
246 /* Followed by ie_len + beacon_ie_len octets of IE data */
250 * struct wpa_scan_results - Scan results
251 * @res: Array of pointers to allocated variable length scan result entries
252 * @num: Number of entries in the scan result array
253 * @fetch_time: Time when the results were fetched from the driver
255 struct wpa_scan_results {
256 struct wpa_scan_res **res;
258 struct os_reltime fetch_time;
262 * struct wpa_interface_info - Network interface information
263 * @next: Pointer to the next interface or NULL if this is the last one
264 * @ifname: Interface name that can be used with init() or init2()
265 * @desc: Human readable adapter description (e.g., vendor/model) or NULL if
267 * @drv_name: struct wpa_driver_ops::name (note: unlike other strings, this one
268 * is not an allocated copy, i.e., get_interfaces() caller will not free
271 struct wpa_interface_info {
272 struct wpa_interface_info *next;
275 const char *drv_name;
278 #define WPAS_MAX_SCAN_SSIDS 16
281 * struct wpa_driver_scan_params - Scan parameters
282 * Data for struct wpa_driver_ops::scan2().
284 struct wpa_driver_scan_params {
286 * ssids - SSIDs to scan for
288 struct wpa_driver_scan_ssid {
290 * ssid - specific SSID to scan for (ProbeReq)
291 * %NULL or zero-length SSID is used to indicate active scan
292 * with wildcard SSID.
296 * ssid_len: Length of the SSID in octets
299 } ssids[WPAS_MAX_SCAN_SSIDS];
302 * num_ssids - Number of entries in ssids array
303 * Zero indicates a request for a passive scan.
308 * extra_ies - Extra IE(s) to add into Probe Request or %NULL
313 * extra_ies_len - Length of extra_ies in octets
315 size_t extra_ies_len;
318 * freqs - Array of frequencies to scan or %NULL for all frequencies
320 * The frequency is set in MHz. The array is zero-terminated.
325 * filter_ssids - Filter for reporting SSIDs
327 * This optional parameter can be used to request the driver wrapper to
328 * filter scan results to include only the specified SSIDs. %NULL
329 * indicates that no filtering is to be done. This can be used to
330 * reduce memory needs for scan results in environments that have large
331 * number of APs with different SSIDs.
333 * The driver wrapper is allowed to take this allocated buffer into its
334 * own use by setting the pointer to %NULL. In that case, the driver
335 * wrapper is responsible for freeing the buffer with os_free() once it
336 * is not needed anymore.
338 struct wpa_driver_scan_filter {
344 * num_filter_ssids - Number of entries in filter_ssids array
346 size_t num_filter_ssids;
349 * filter_rssi - Filter by RSSI
351 * The driver may filter scan results in firmware to reduce host
352 * wakeups and thereby save power. Specify the RSSI threshold in s32
358 * p2p_probe - Used to disable CCK (802.11b) rates for P2P probes
360 * When set, the driver is expected to remove rates 1, 2, 5.5, and 11
361 * Mbps from the support rates element(s) in the Probe Request frames
362 * and not to transmit the frames at any of those rates.
364 unsigned int p2p_probe:1;
367 * only_new_results - Request driver to report only new results
369 * This is used to request the driver to report only BSSes that have
370 * been detected after this scan request has been started, i.e., to
371 * flush old cached BSS entries.
373 unsigned int only_new_results:1;
376 * low_priority - Requests driver to use a lower scan priority
378 * This is used to request the driver to use a lower scan priority
379 * if it supports such a thing.
381 unsigned int low_priority:1;
384 * mac_addr_rand - Requests driver to randomize MAC address
386 unsigned int mac_addr_rand:1;
389 * mac_addr - MAC address used with randomization. The address cannot be
390 * a multicast one, i.e., bit 0 of byte 0 should not be set.
395 * mac_addr_mask - MAC address mask used with randomization.
397 * Bits that are 0 in the mask should be randomized. Bits that are 1 in
398 * the mask should be taken as is from mac_addr. The mask should not
399 * allow the generation of a multicast address, i.e., bit 0 of byte 0
402 const u8 *mac_addr_mask;
405 * NOTE: Whenever adding new parameters here, please make sure
406 * wpa_scan_clone_params() and wpa_scan_free_params() get updated with
412 * struct wpa_driver_auth_params - Authentication parameters
413 * Data for struct wpa_driver_ops::authenticate().
415 struct wpa_driver_auth_params {
423 const u8 *wep_key[4];
424 size_t wep_key_len[4];
426 int local_state_change;
429 * p2p - Whether this connection is a P2P group
434 * sae_data - SAE elements for Authentication frame
436 * This buffer starts with the Authentication transaction sequence
437 * number field. If SAE is not used, this pointer is %NULL.
442 * sae_data_len - Length of sae_data buffer in octets
448 * enum wps_mode - WPS mode
452 * WPS_MODE_NONE - No WPS provisioning being used
457 * WPS_MODE_OPEN - WPS provisioning with AP that is in open mode
462 * WPS_MODE_PRIVACY - WPS provisioning with AP that is using protection
468 * struct hostapd_freq_params - Channel parameters
470 struct hostapd_freq_params {
472 * mode - Mode/band (HOSTAPD_MODE_IEEE80211A, ..)
474 enum hostapd_hw_mode mode;
477 * freq - Primary channel center frequency in MHz
482 * channel - Channel number
487 * ht_enabled - Whether HT is enabled
492 * sec_channel_offset - Secondary channel offset for HT40
495 * -1 = HT40 enabled, secondary channel below primary,
496 * 1 = HT40 enabled, secondary channel above primary
498 int sec_channel_offset;
501 * vht_enabled - Whether VHT is enabled
506 * center_freq1 - Segment 0 center frequency in MHz
508 * Valid for both HT and VHT.
513 * center_freq2 - Segment 1 center frequency in MHz
515 * Non-zero only for bandwidth 80 and an 80+80 channel
520 * bandwidth - Channel bandwidth in MHz (20, 40, 80, 160)
526 * struct wpa_driver_associate_params - Association parameters
527 * Data for struct wpa_driver_ops::associate().
529 struct wpa_driver_associate_params {
531 * bssid - BSSID of the selected AP
532 * This can be %NULL, if ap_scan=2 mode is used and the driver is
533 * responsible for selecting with which BSS to associate. */
537 * bssid_hint - BSSID of a proposed AP
539 * This indicates which BSS has been found a suitable candidate for
540 * initial association for drivers that use driver/firmwate-based BSS
541 * selection. Unlike the @bssid parameter, @bssid_hint does not limit
542 * the driver from selecting other BSSes in the ESS.
544 const u8 *bssid_hint;
547 * ssid - The selected SSID
552 * ssid_len - Length of the SSID (1..32)
557 * freq - channel parameters
559 struct hostapd_freq_params freq;
562 * freq_hint - Frequency of the channel the proposed AP is using
564 * This provides a channel on which a suitable BSS has been found as a
565 * hint for the driver. Unlike the @freq parameter, @freq_hint does not
566 * limit the driver from selecting other channels for
567 * driver/firmware-based BSS selection.
572 * bg_scan_period - Background scan period in seconds, 0 to disable
573 * background scan, or -1 to indicate no change to default driver
579 * beacon_int - Beacon interval for IBSS or 0 to use driver default
584 * wpa_ie - WPA information element for (Re)Association Request
585 * WPA information element to be included in (Re)Association
586 * Request (including information element id and length). Use
587 * of this WPA IE is optional. If the driver generates the WPA
588 * IE, it can use pairwise_suite, group_suite, and
589 * key_mgmt_suite to select proper algorithms. In this case,
590 * the driver has to notify wpa_supplicant about the used WPA
591 * IE by generating an event that the interface code will
592 * convert into EVENT_ASSOCINFO data (see below).
594 * When using WPA2/IEEE 802.11i, wpa_ie is used for RSN IE
595 * instead. The driver can determine which version is used by
596 * looking at the first byte of the IE (0xdd for WPA, 0x30 for
599 * When using WPS, wpa_ie is used for WPS IE instead of WPA/RSN IE.
604 * wpa_ie_len - length of the wpa_ie
609 * wpa_proto - Bitfield of WPA_PROTO_* values to indicate WPA/WPA2
611 unsigned int wpa_proto;
614 * pairwise_suite - Selected pairwise cipher suite (WPA_CIPHER_*)
616 * This is usually ignored if @wpa_ie is used.
618 unsigned int pairwise_suite;
621 * group_suite - Selected group cipher suite (WPA_CIPHER_*)
623 * This is usually ignored if @wpa_ie is used.
625 unsigned int group_suite;
628 * key_mgmt_suite - Selected key management suite (WPA_KEY_MGMT_*)
630 * This is usually ignored if @wpa_ie is used.
632 unsigned int key_mgmt_suite;
635 * auth_alg - Allowed authentication algorithms
636 * Bit field of WPA_AUTH_ALG_*
641 * mode - Operation mode (infra/ibss) IEEE80211_MODE_*
646 * wep_key - WEP keys for static WEP configuration
648 const u8 *wep_key[4];
651 * wep_key_len - WEP key length for static WEP configuration
653 size_t wep_key_len[4];
656 * wep_tx_keyidx - WEP TX key index for static WEP configuration
661 * mgmt_frame_protection - IEEE 802.11w management frame protection
663 enum mfp_options mgmt_frame_protection;
666 * ft_ies - IEEE 802.11r / FT information elements
667 * If the supplicant is using IEEE 802.11r (FT) and has the needed keys
668 * for fast transition, this parameter is set to include the IEs that
669 * are to be sent in the next FT Authentication Request message.
670 * update_ft_ies() handler is called to update the IEs for further
671 * FT messages in the sequence.
673 * The driver should use these IEs only if the target AP is advertising
674 * the same mobility domain as the one included in the MDIE here.
676 * In ap_scan=2 mode, the driver can use these IEs when moving to a new
677 * AP after the initial association. These IEs can only be used if the
678 * target AP is advertising support for FT and is using the same MDIE
679 * and SSID as the current AP.
681 * The driver is responsible for reporting the FT IEs received from the
682 * AP's response using wpa_supplicant_event() with EVENT_FT_RESPONSE
683 * type. update_ft_ies() handler will then be called with the FT IEs to
684 * include in the next frame in the authentication sequence.
689 * ft_ies_len - Length of ft_ies in bytes
694 * ft_md - FT Mobility domain (6 octets) (also included inside ft_ies)
696 * This value is provided to allow the driver interface easier access
697 * to the current mobility domain. This value is set to %NULL if no
698 * mobility domain is currently active.
703 * passphrase - RSN passphrase for PSK
705 * This value is made available only for WPA/WPA2-Personal (PSK) and
706 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is
707 * the 8..63 character ASCII passphrase, if available. Please note that
708 * this can be %NULL if passphrase was not used to generate the PSK. In
709 * that case, the psk field must be used to fetch the PSK.
711 const char *passphrase;
714 * psk - RSN PSK (alternative for passphrase for PSK)
716 * This value is made available only for WPA/WPA2-Personal (PSK) and
717 * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is
718 * the 32-octet (256-bit) PSK, if available. The driver wrapper should
719 * be prepared to handle %NULL value as an error.
724 * drop_unencrypted - Enable/disable unencrypted frame filtering
726 * Configure the driver to drop all non-EAPOL frames (both receive and
727 * transmit paths). Unencrypted EAPOL frames (ethertype 0x888e) must
728 * still be allowed for key negotiation.
730 int drop_unencrypted;
733 * prev_bssid - Previously used BSSID in this ESS
735 * When not %NULL, this is a request to use reassociation instead of
738 const u8 *prev_bssid;
743 * If the driver needs to do special configuration for WPS association,
744 * this variable provides more information on what type of association
745 * is being requested. Most drivers should not need ot use this.
750 * p2p - Whether this connection is a P2P group
755 * uapsd - UAPSD parameters for the network
756 * -1 = do not change defaults
757 * AP mode: 1 = enabled, 0 = disabled
758 * STA mode: bits 0..3 UAPSD enabled for VO,VI,BK,BE
763 * fixed_bssid - Whether to force this BSSID in IBSS mode
764 * 1 = Fix this BSSID and prevent merges.
765 * 0 = Do not fix BSSID.
770 * fixed_freq - Fix control channel in IBSS mode
771 * 0 = don't fix control channel (default)
772 * 1 = fix control channel; this prevents IBSS merging with another
778 * disable_ht - Disable HT (IEEE 802.11n) for this connection
783 * htcaps - HT Capabilities over-rides
785 * Only bits set in the mask will be used, and not all values are used
786 * by the kernel anyway. Currently, MCS, MPDU and MSDU fields are used.
788 * Pointer to struct ieee80211_ht_capabilities.
793 * htcaps_mask - HT Capabilities over-rides mask
795 * Pointer to struct ieee80211_ht_capabilities.
797 const u8 *htcaps_mask;
799 #ifdef CONFIG_VHT_OVERRIDES
801 * disable_vht - Disable VHT for this connection
806 * VHT capability overrides.
808 const struct ieee80211_vht_capabilities *vhtcaps;
809 const struct ieee80211_vht_capabilities *vhtcaps_mask;
810 #endif /* CONFIG_VHT_OVERRIDES */
813 * req_key_mgmt_offload - Request key management offload for connection
815 * Request key management offload for this connection if the device
818 int req_key_mgmt_offload;
821 * Flag for indicating whether this association includes support for
822 * RRM (Radio Resource Measurements)
829 HIDDEN_SSID_ZERO_LEN,
830 HIDDEN_SSID_ZERO_CONTENTS
833 struct wowlan_triggers {
837 u8 gtk_rekey_failure;
839 u8 four_way_handshake;
843 struct wpa_driver_ap_params {
845 * head - Beacon head from IEEE 802.11 header to IEs before TIM IE
850 * head_len - Length of the head buffer in octets
855 * tail - Beacon tail following TIM IE
860 * tail_len - Length of the tail buffer in octets
865 * dtim_period - DTIM period
870 * beacon_int - Beacon interval
875 * basic_rates: -1 terminated array of basic rates in 100 kbps
877 * This parameter can be used to set a specific basic rate set for the
878 * BSS. If %NULL, default basic rate set is used.
883 * proberesp - Probe Response template
885 * This is used by drivers that reply to Probe Requests internally in
886 * AP mode and require the full Probe Response template.
891 * proberesp_len - Length of the proberesp buffer in octets
893 size_t proberesp_len;
896 * ssid - The SSID to use in Beacon/Probe Response frames
901 * ssid_len - Length of the SSID (1..32)
906 * hide_ssid - Whether to hide the SSID
908 enum hide_ssid hide_ssid;
911 * pairwise_ciphers - WPA_CIPHER_* bitfield
913 unsigned int pairwise_ciphers;
916 * group_cipher - WPA_CIPHER_*
918 unsigned int group_cipher;
921 * key_mgmt_suites - WPA_KEY_MGMT_* bitfield
923 unsigned int key_mgmt_suites;
926 * auth_algs - WPA_AUTH_ALG_* bitfield
928 unsigned int auth_algs;
931 * wpa_version - WPA_PROTO_* bitfield
933 unsigned int wpa_version;
936 * privacy - Whether privacy is used in the BSS
941 * beacon_ies - WPS/P2P IE(s) for Beacon frames
943 * This is used to add IEs like WPS IE and P2P IE by drivers that do
944 * not use the full Beacon template.
946 const struct wpabuf *beacon_ies;
949 * proberesp_ies - P2P/WPS IE(s) for Probe Response frames
951 * This is used to add IEs like WPS IE and P2P IE by drivers that
952 * reply to Probe Request frames internally.
954 const struct wpabuf *proberesp_ies;
957 * assocresp_ies - WPS IE(s) for (Re)Association Response frames
959 * This is used to add IEs like WPS IE by drivers that reply to
960 * (Re)Association Request frames internally.
962 const struct wpabuf *assocresp_ies;
965 * isolate - Whether to isolate frames between associated stations
967 * If this is non-zero, the AP is requested to disable forwarding of
968 * frames between associated stations.
973 * cts_protect - Whether CTS protection is enabled
978 * preamble - Whether short preamble is enabled
983 * short_slot_time - Whether short slot time is enabled
985 * 0 = short slot time disable, 1 = short slot time enabled, -1 = do
986 * not set (e.g., when 802.11g mode is not in use)
991 * ht_opmode - HT operation mode or -1 if HT not in use
996 * interworking - Whether Interworking is enabled
1001 * hessid - Homogeneous ESS identifier or %NULL if not set
1006 * access_network_type - Access Network Type (0..15)
1008 * This is used for filtering Probe Request frames when Interworking is
1011 u8 access_network_type;
1014 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
1016 * This is used by driver which advertises this capability.
1018 int ap_max_inactivity;
1021 * smps_mode - SMPS mode
1023 * SMPS mode to be used by the AP, specified as the relevant bits of
1024 * ht_capab (i.e. HT_CAP_INFO_SMPS_*).
1026 unsigned int smps_mode;
1029 * disable_dgaf - Whether group-addressed frames are disabled
1034 * osen - Whether OSEN security is enabled
1039 * freq - Channel parameters for dynamic bandwidth changes
1041 struct hostapd_freq_params *freq;
1044 * reenable - Whether this is to re-enable beaconing
1049 struct wpa_driver_mesh_bss_params {
1050 #define WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS 0x00000001
1052 * TODO: Other mesh configuration parameters would go here.
1053 * See NL80211_MESHCONF_* for all the mesh config parameters.
1056 int peer_link_timeout;
1059 struct wpa_driver_mesh_join_params {
1062 const int *basic_rates;
1065 struct hostapd_freq_params freq;
1068 struct wpa_driver_mesh_bss_params conf;
1069 #define WPA_DRIVER_MESH_FLAG_USER_MPM 0x00000001
1070 #define WPA_DRIVER_MESH_FLAG_DRIVER_MPM 0x00000002
1071 #define WPA_DRIVER_MESH_FLAG_SAE_AUTH 0x00000004
1072 #define WPA_DRIVER_MESH_FLAG_AMPE 0x00000008
1077 * struct wpa_driver_capa - Driver capability information
1079 struct wpa_driver_capa {
1080 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA 0x00000001
1081 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2 0x00000002
1082 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK 0x00000004
1083 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK 0x00000008
1084 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE 0x00000010
1085 #define WPA_DRIVER_CAPA_KEY_MGMT_FT 0x00000020
1086 #define WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK 0x00000040
1087 #define WPA_DRIVER_CAPA_KEY_MGMT_WAPI_PSK 0x00000080
1088 #define WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B 0x00000100
1089 #define WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192 0x00000200
1090 /** Bitfield of supported key management suites */
1091 unsigned int key_mgmt;
1093 #define WPA_DRIVER_CAPA_ENC_WEP40 0x00000001
1094 #define WPA_DRIVER_CAPA_ENC_WEP104 0x00000002
1095 #define WPA_DRIVER_CAPA_ENC_TKIP 0x00000004
1096 #define WPA_DRIVER_CAPA_ENC_CCMP 0x00000008
1097 #define WPA_DRIVER_CAPA_ENC_WEP128 0x00000010
1098 #define WPA_DRIVER_CAPA_ENC_GCMP 0x00000020
1099 #define WPA_DRIVER_CAPA_ENC_GCMP_256 0x00000040
1100 #define WPA_DRIVER_CAPA_ENC_CCMP_256 0x00000080
1101 #define WPA_DRIVER_CAPA_ENC_BIP 0x00000100
1102 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_128 0x00000200
1103 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_256 0x00000400
1104 #define WPA_DRIVER_CAPA_ENC_BIP_CMAC_256 0x00000800
1105 #define WPA_DRIVER_CAPA_ENC_GTK_NOT_USED 0x00001000
1106 /** Bitfield of supported cipher suites */
1109 #define WPA_DRIVER_AUTH_OPEN 0x00000001
1110 #define WPA_DRIVER_AUTH_SHARED 0x00000002
1111 #define WPA_DRIVER_AUTH_LEAP 0x00000004
1112 /** Bitfield of supported IEEE 802.11 authentication algorithms */
1115 /** Driver generated WPA/RSN IE */
1116 #define WPA_DRIVER_FLAGS_DRIVER_IE 0x00000001
1117 /** Driver needs static WEP key setup after association command */
1118 #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC 0x00000002
1119 /** Driver takes care of all DFS operations */
1120 #define WPA_DRIVER_FLAGS_DFS_OFFLOAD 0x00000004
1121 /** Driver takes care of RSN 4-way handshake internally; PMK is configured with
1122 * struct wpa_driver_ops::set_key using alg = WPA_ALG_PMK */
1123 #define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE 0x00000008
1124 /** Driver is for a wired Ethernet interface */
1125 #define WPA_DRIVER_FLAGS_WIRED 0x00000010
1126 /** Driver provides separate commands for authentication and association (SME in
1127 * wpa_supplicant). */
1128 #define WPA_DRIVER_FLAGS_SME 0x00000020
1129 /** Driver supports AP mode */
1130 #define WPA_DRIVER_FLAGS_AP 0x00000040
1131 /** Driver needs static WEP key setup after association has been completed */
1132 #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE 0x00000080
1133 /** Driver supports dynamic HT 20/40 MHz channel changes during BSS lifetime */
1134 #define WPA_DRIVER_FLAGS_HT_2040_COEX 0x00000100
1135 /** Driver supports concurrent P2P operations */
1136 #define WPA_DRIVER_FLAGS_P2P_CONCURRENT 0x00000200
1138 * Driver uses the initial interface as a dedicated management interface, i.e.,
1139 * it cannot be used for P2P group operations or non-P2P purposes.
1141 #define WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE 0x00000400
1142 /** This interface is P2P capable (P2P GO or P2P Client) */
1143 #define WPA_DRIVER_FLAGS_P2P_CAPABLE 0x00000800
1144 /** Driver supports station and key removal when stopping an AP */
1145 #define WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT 0x00001000
1147 * Driver uses the initial interface for P2P management interface and non-P2P
1148 * purposes (e.g., connect to infra AP), but this interface cannot be used for
1149 * P2P group operations.
1151 #define WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P 0x00002000
1153 * Driver is known to use sane error codes, i.e., when it indicates that
1154 * something (e.g., association) fails, there was indeed a failure and the
1155 * operation does not end up getting completed successfully later.
1157 #define WPA_DRIVER_FLAGS_SANE_ERROR_CODES 0x00004000
1158 /** Driver supports off-channel TX */
1159 #define WPA_DRIVER_FLAGS_OFFCHANNEL_TX 0x00008000
1160 /** Driver indicates TX status events for EAPOL Data frames */
1161 #define WPA_DRIVER_FLAGS_EAPOL_TX_STATUS 0x00010000
1162 /** Driver indicates TX status events for Deauth/Disassoc frames */
1163 #define WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS 0x00020000
1164 /** Driver supports roaming (BSS selection) in firmware */
1165 #define WPA_DRIVER_FLAGS_BSS_SELECTION 0x00040000
1166 /** Driver supports operating as a TDLS peer */
1167 #define WPA_DRIVER_FLAGS_TDLS_SUPPORT 0x00080000
1168 /** Driver requires external TDLS setup/teardown/discovery */
1169 #define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000
1170 /** Driver indicates support for Probe Response offloading in AP mode */
1171 #define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000
1172 /** Driver supports U-APSD in AP mode */
1173 #define WPA_DRIVER_FLAGS_AP_UAPSD 0x00400000
1174 /** Driver supports inactivity timer in AP mode */
1175 #define WPA_DRIVER_FLAGS_INACTIVITY_TIMER 0x00800000
1176 /** Driver expects user space implementation of MLME in AP mode */
1177 #define WPA_DRIVER_FLAGS_AP_MLME 0x01000000
1178 /** Driver supports SAE with user space SME */
1179 #define WPA_DRIVER_FLAGS_SAE 0x02000000
1180 /** Driver makes use of OBSS scan mechanism in wpa_supplicant */
1181 #define WPA_DRIVER_FLAGS_OBSS_SCAN 0x04000000
1182 /** Driver supports IBSS (Ad-hoc) mode */
1183 #define WPA_DRIVER_FLAGS_IBSS 0x08000000
1184 /** Driver supports radar detection */
1185 #define WPA_DRIVER_FLAGS_RADAR 0x10000000
1186 /** Driver supports a dedicated interface for P2P Device */
1187 #define WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE 0x20000000
1188 /** Driver supports QoS Mapping */
1189 #define WPA_DRIVER_FLAGS_QOS_MAPPING 0x40000000
1190 /** Driver supports CSA in AP mode */
1191 #define WPA_DRIVER_FLAGS_AP_CSA 0x80000000
1192 /** Driver supports mesh */
1193 #define WPA_DRIVER_FLAGS_MESH 0x0000000100000000ULL
1194 /** Driver support ACS offload */
1195 #define WPA_DRIVER_FLAGS_ACS_OFFLOAD 0x0000000200000000ULL
1196 /** Driver supports key management offload */
1197 #define WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD 0x0000000400000000ULL
1198 /** Driver supports TDLS channel switching */
1199 #define WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH 0x0000000800000000ULL
1200 /** Driver supports IBSS with HT datarates */
1201 #define WPA_DRIVER_FLAGS_HT_IBSS 0x0000001000000000ULL
1202 /** Driver supports IBSS with VHT datarates */
1203 #define WPA_DRIVER_FLAGS_VHT_IBSS 0x0000002000000000ULL
1206 #define WPA_DRIVER_SMPS_MODE_STATIC 0x00000001
1207 #define WPA_DRIVER_SMPS_MODE_DYNAMIC 0x00000002
1208 unsigned int smps_modes;
1210 unsigned int wmm_ac_supported:1;
1212 unsigned int mac_addr_rand_scan_supported:1;
1213 unsigned int mac_addr_rand_sched_scan_supported:1;
1215 /** Maximum number of supported active probe SSIDs */
1218 /** Maximum number of supported active probe SSIDs for sched_scan */
1219 int max_sched_scan_ssids;
1221 /** Whether sched_scan (offloaded scanning) is supported */
1222 int sched_scan_supported;
1224 /** Maximum number of supported match sets for sched_scan */
1228 * max_remain_on_chan - Maximum remain-on-channel duration in msec
1230 unsigned int max_remain_on_chan;
1233 * max_stations - Maximum number of associated stations the driver
1234 * supports in AP mode
1236 unsigned int max_stations;
1239 * probe_resp_offloads - Bitmap of supported protocols by the driver
1240 * for Probe Response offloading.
1242 /** Driver Probe Response offloading support for WPS ver. 1 */
1243 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS 0x00000001
1244 /** Driver Probe Response offloading support for WPS ver. 2 */
1245 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2 0x00000002
1246 /** Driver Probe Response offloading support for P2P */
1247 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P 0x00000004
1248 /** Driver Probe Response offloading support for IEEE 802.11u (Interworking) */
1249 #define WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING 0x00000008
1250 unsigned int probe_resp_offloads;
1252 unsigned int max_acl_mac_addrs;
1255 * Number of supported concurrent channels
1257 unsigned int num_multichan_concurrent;
1260 * extended_capa - extended capabilities in driver/device
1262 * Must be allocated and freed by driver and the pointers must be
1263 * valid for the lifetime of the driver, i.e., freed in deinit()
1265 const u8 *extended_capa, *extended_capa_mask;
1266 unsigned int extended_capa_len;
1268 struct wowlan_triggers wowlan_triggers;
1270 /** Driver adds the DS Params Set IE in Probe Request frames */
1271 #define WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES 0x00000001
1272 /** Driver adds the WFA TPC IE in Probe Request frames */
1273 #define WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES 0x00000002
1274 /** Driver handles quiet period requests */
1275 #define WPA_DRIVER_FLAGS_QUIET 0x00000004
1277 * Driver is capable of inserting the current TX power value into the body of
1278 * transmitted frames.
1279 * Background: Some Action frames include a TPC Report IE. This IE contains a
1280 * TX power field, which has to be updated by lower layers. One such Action
1281 * frame is Link Measurement Report (part of RRM). Another is TPC Report (part
1282 * of spectrum management). Note that this insertion takes place at a fixed
1283 * offset, namely the 6th byte in the Action frame body.
1285 #define WPA_DRIVER_FLAGS_TX_POWER_INSERTION 0x00000008
1290 struct hostapd_data;
1292 struct hostap_sta_driver_data {
1293 unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes;
1294 unsigned long current_tx_rate;
1295 unsigned long inactive_msec;
1296 unsigned long flags;
1297 unsigned long num_ps_buf_frames;
1298 unsigned long tx_retry_failed;
1299 unsigned long tx_retry_count;
1304 struct hostapd_sta_add_params {
1308 const u8 *supp_rates;
1309 size_t supp_rates_len;
1310 u16 listen_interval;
1311 const struct ieee80211_ht_capabilities *ht_capabilities;
1312 const struct ieee80211_vht_capabilities *vht_capabilities;
1313 int vht_opmode_enabled;
1315 u32 flags; /* bitmask of WPA_STA_* flags */
1316 u32 flags_mask; /* unset bits in flags */
1318 enum mesh_plink_state plink_state;
1319 #endif /* CONFIG_MESH */
1320 int set; /* Set STA parameters instead of add */
1322 const u8 *ext_capab;
1323 size_t ext_capab_len;
1324 const u8 *supp_channels;
1325 size_t supp_channels_len;
1326 const u8 *supp_oper_classes;
1327 size_t supp_oper_classes_len;
1330 struct mac_address {
1334 struct hostapd_acl_params {
1336 unsigned int num_mac_acl;
1337 struct mac_address mac_acl[0];
1340 enum wpa_driver_if_type {
1342 * WPA_IF_STATION - Station mode interface
1347 * WPA_IF_AP_VLAN - AP mode VLAN interface
1349 * This interface shares its address and Beacon frame with the main
1355 * WPA_IF_AP_BSS - AP mode BSS interface
1357 * This interface has its own address and Beacon frame.
1362 * WPA_IF_P2P_GO - P2P Group Owner
1367 * WPA_IF_P2P_CLIENT - P2P Client
1372 * WPA_IF_P2P_GROUP - P2P Group interface (will become either
1373 * WPA_IF_P2P_GO or WPA_IF_P2P_CLIENT, but the role is not yet known)
1378 * WPA_IF_P2P_DEVICE - P2P Device interface is used to indentify the
1379 * abstracted P2P Device function in the driver
1384 * WPA_IF_MESH - Mesh interface
1389 struct wpa_init_params {
1393 const char *driver_params;
1394 int use_pae_group_addr;
1398 u8 *own_addr; /* buffer for writing own MAC address */
1402 struct wpa_bss_params {
1403 /** Interface name (for multi-SSID/VLAN support) */
1405 /** Whether IEEE 802.1X or WPA/WPA2 is enabled */
1414 enum mfp_options ieee80211w;
1417 #define WPA_STA_AUTHORIZED BIT(0)
1418 #define WPA_STA_WMM BIT(1)
1419 #define WPA_STA_SHORT_PREAMBLE BIT(2)
1420 #define WPA_STA_MFP BIT(3)
1421 #define WPA_STA_TDLS_PEER BIT(4)
1422 #define WPA_STA_AUTHENTICATED BIT(5)
1435 WNM_SLEEP_ENTER_CONFIRM,
1436 WNM_SLEEP_ENTER_FAIL,
1437 WNM_SLEEP_EXIT_CONFIRM,
1438 WNM_SLEEP_EXIT_FAIL,
1439 WNM_SLEEP_TFS_REQ_IE_ADD, /* STA requests driver to add TFS req IE */
1440 WNM_SLEEP_TFS_REQ_IE_NONE, /* STA requests empty TFS req IE */
1441 WNM_SLEEP_TFS_REQ_IE_SET, /* AP requests driver to set TFS req IE for
1443 WNM_SLEEP_TFS_RESP_IE_ADD, /* AP requests driver to add TFS resp IE
1445 WNM_SLEEP_TFS_RESP_IE_NONE, /* AP requests empty TFS resp IE */
1446 WNM_SLEEP_TFS_RESP_IE_SET, /* AP requests driver to set TFS resp IE
1448 WNM_SLEEP_TFS_IE_DEL /* AP delete the TFS IE */
1451 /* enum chan_width - Channel width definitions */
1463 * struct wpa_signal_info - Information about channel signal quality
1465 struct wpa_signal_info {
1467 int above_threshold;
1472 enum chan_width chanwidth;
1478 * struct beacon_data - Beacon data
1479 * @head: Head portion of Beacon frame (before TIM IE)
1480 * @tail: Tail portion of Beacon frame (after TIM IE)
1481 * @beacon_ies: Extra information element(s) to add into Beacon frames or %NULL
1482 * @proberesp_ies: Extra information element(s) to add into Probe Response
1484 * @assocresp_ies: Extra information element(s) to add into (Re)Association
1485 * Response frames or %NULL
1486 * @probe_resp: Probe Response frame template
1487 * @head_len: Length of @head
1488 * @tail_len: Length of @tail
1489 * @beacon_ies_len: Length of beacon_ies in octets
1490 * @proberesp_ies_len: Length of proberesp_ies in octets
1491 * @proberesp_ies_len: Length of proberesp_ies in octets
1492 * @probe_resp_len: Length of probe response template (@probe_resp)
1494 struct beacon_data {
1501 size_t head_len, tail_len;
1502 size_t beacon_ies_len;
1503 size_t proberesp_ies_len;
1504 size_t assocresp_ies_len;
1505 size_t probe_resp_len;
1509 * struct csa_settings - Settings for channel switch command
1510 * @cs_count: Count in Beacon frames (TBTT) to perform the switch
1511 * @block_tx: 1 - block transmission for CSA period
1512 * @freq_params: Next channel frequency parameter
1513 * @beacon_csa: Beacon/probe resp/asooc resp info for CSA period
1514 * @beacon_after: Next beacon/probe resp/asooc resp info
1515 * @counter_offset_beacon: Offset to the count field in beacon's tail
1516 * @counter_offset_presp: Offset to the count field in probe resp.
1518 struct csa_settings {
1522 struct hostapd_freq_params freq_params;
1523 struct beacon_data beacon_csa;
1524 struct beacon_data beacon_after;
1526 u16 counter_offset_beacon;
1527 u16 counter_offset_presp;
1530 /* TDLS peer capabilities for send_tdls_mgmt() */
1531 enum tdls_peer_capability {
1532 TDLS_PEER_HT = BIT(0),
1533 TDLS_PEER_VHT = BIT(1),
1534 TDLS_PEER_WMM = BIT(2),
1537 /* valid info in the wmm_params struct */
1538 enum wmm_params_valid_info {
1539 WMM_PARAMS_UAPSD_QUEUES_INFO = BIT(0),
1543 * struct wmm_params - WMM parameterss configured for this association
1544 * @info_bitmap: Bitmap of valid wmm_params info; indicates what fields
1545 * of the struct contain valid information.
1546 * @uapsd_queues: Bitmap of ACs configured for uapsd (valid only if
1547 * %WMM_PARAMS_UAPSD_QUEUES_INFO is set)
1554 #ifdef CONFIG_MACSEC
1555 struct macsec_init_params {
1556 Boolean always_include_sci;
1560 #endif /* CONFIG_MACSEC */
1562 enum drv_br_port_attr {
1563 DRV_BR_PORT_ATTR_PROXYARP,
1564 DRV_BR_PORT_ATTR_HAIRPIN_MODE,
1567 enum drv_br_net_param {
1568 DRV_BR_NET_PARAM_GARP_ACCEPT,
1571 struct drv_acs_params {
1572 /* Selected mode (HOSTAPD_MODE_*) */
1573 enum hostapd_hw_mode hw_mode;
1575 /* Indicates whether HT is enabled */
1578 /* Indicates whether HT40 is enabled */
1584 * struct wpa_driver_ops - Driver interface API definition
1586 * This structure defines the API that each driver interface needs to implement
1587 * for core wpa_supplicant code. All driver specific functionality is captured
1590 struct wpa_driver_ops {
1591 /** Name of the driver interface */
1593 /** One line description of the driver interface */
1597 * get_bssid - Get the current BSSID
1598 * @priv: private driver interface data
1599 * @bssid: buffer for BSSID (ETH_ALEN = 6 bytes)
1601 * Returns: 0 on success, -1 on failure
1603 * Query kernel driver for the current BSSID and copy it to bssid.
1604 * Setting bssid to 00:00:00:00:00:00 is recommended if the STA is not
1607 int (*get_bssid)(void *priv, u8 *bssid);
1610 * get_ssid - Get the current SSID
1611 * @priv: private driver interface data
1612 * @ssid: buffer for SSID (at least 32 bytes)
1614 * Returns: Length of the SSID on success, -1 on failure
1616 * Query kernel driver for the current SSID and copy it to ssid.
1617 * Returning zero is recommended if the STA is not associated.
1619 * Note: SSID is an array of octets, i.e., it is not nul terminated and
1620 * can, at least in theory, contain control characters (including nul)
1621 * and as such, should be processed as binary data, not a printable
1624 int (*get_ssid)(void *priv, u8 *ssid);
1627 * set_key - Configure encryption key
1628 * @ifname: Interface name (for multi-SSID/VLAN support)
1629 * @priv: private driver interface data
1630 * @alg: encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP,
1631 * %WPA_ALG_TKIP, %WPA_ALG_CCMP, %WPA_ALG_IGTK, %WPA_ALG_PMK,
1632 * %WPA_ALG_GCMP, %WPA_ALG_GCMP_256, %WPA_ALG_CCMP_256,
1633 * %WPA_ALG_BIP_GMAC_128, %WPA_ALG_BIP_GMAC_256,
1634 * %WPA_ALG_BIP_CMAC_256);
1635 * %WPA_ALG_NONE clears the key.
1636 * @addr: Address of the peer STA (BSSID of the current AP when setting
1637 * pairwise key in station mode), ff:ff:ff:ff:ff:ff for
1638 * broadcast keys, %NULL for default keys that are used both for
1639 * broadcast and unicast; when clearing keys, %NULL is used to
1640 * indicate that both the broadcast-only and default key of the
1641 * specified key index is to be cleared
1642 * @key_idx: key index (0..3), usually 0 for unicast keys; 0..4095 for
1644 * @set_tx: configure this key as the default Tx key (only used when
1645 * driver does not support separate unicast/individual key
1646 * @seq: sequence number/packet number, seq_len octets, the next
1647 * packet number to be used for in replay protection; configured
1648 * for Rx keys (in most cases, this is only used with broadcast
1649 * keys and set to zero for unicast keys); %NULL if not set
1650 * @seq_len: length of the seq, depends on the algorithm:
1651 * TKIP: 6 octets, CCMP/GCMP: 6 octets, IGTK: 6 octets
1652 * @key: key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key,
1654 * @key_len: length of the key buffer in octets (WEP: 5 or 13,
1655 * TKIP: 32, CCMP/GCMP: 16, IGTK: 16)
1657 * Returns: 0 on success, -1 on failure
1659 * Configure the given key for the kernel driver. If the driver
1660 * supports separate individual keys (4 default keys + 1 individual),
1661 * addr can be used to determine whether the key is default or
1662 * individual. If only 4 keys are supported, the default key with key
1663 * index 0 is used as the individual key. STA must be configured to use
1664 * it as the default Tx key (set_tx is set) and accept Rx for all the
1665 * key indexes. In most cases, WPA uses only key indexes 1 and 2 for
1666 * broadcast keys, so key index 0 is available for this kind of
1669 * Please note that TKIP keys include separate TX and RX MIC keys and
1670 * some drivers may expect them in different order than wpa_supplicant
1671 * is using. If the TX/RX keys are swapped, all TKIP encrypted packets
1672 * will trigger Michael MIC errors. This can be fixed by changing the
1673 * order of MIC keys by swapping te bytes 16..23 and 24..31 of the key
1674 * in driver_*.c set_key() implementation, see driver_ndis.c for an
1675 * example on how this can be done.
1677 int (*set_key)(const char *ifname, void *priv, enum wpa_alg alg,
1678 const u8 *addr, int key_idx, int set_tx,
1679 const u8 *seq, size_t seq_len,
1680 const u8 *key, size_t key_len);
1683 * init - Initialize driver interface
1684 * @ctx: context to be used when calling wpa_supplicant functions,
1685 * e.g., wpa_supplicant_event()
1686 * @ifname: interface name, e.g., wlan0
1688 * Returns: Pointer to private data, %NULL on failure
1690 * Initialize driver interface, including event processing for kernel
1691 * driver events (e.g., associated, scan results, Michael MIC failure).
1692 * This function can allocate a private configuration data area for
1693 * @ctx, file descriptor, interface name, etc. information that may be
1694 * needed in future driver operations. If this is not used, non-NULL
1695 * value will need to be returned because %NULL is used to indicate
1696 * failure. The returned value will be used as 'void *priv' data for
1697 * all other driver_ops functions.
1699 * The main event loop (eloop.c) of wpa_supplicant can be used to
1700 * register callback for read sockets (eloop_register_read_sock()).
1702 * See below for more information about events and
1703 * wpa_supplicant_event() function.
1705 void * (*init)(void *ctx, const char *ifname);
1708 * deinit - Deinitialize driver interface
1709 * @priv: private driver interface data from init()
1711 * Shut down driver interface and processing of driver events. Free
1712 * private data buffer if one was allocated in init() handler.
1714 void (*deinit)(void *priv);
1717 * set_param - Set driver configuration parameters
1718 * @priv: private driver interface data from init()
1719 * @param: driver specific configuration parameters
1721 * Returns: 0 on success, -1 on failure
1723 * Optional handler for notifying driver interface about configuration
1724 * parameters (driver_param).
1726 int (*set_param)(void *priv, const char *param);
1729 * set_countermeasures - Enable/disable TKIP countermeasures
1730 * @priv: private driver interface data
1731 * @enabled: 1 = countermeasures enabled, 0 = disabled
1733 * Returns: 0 on success, -1 on failure
1735 * Configure TKIP countermeasures. When these are enabled, the driver
1736 * should drop all received and queued frames that are using TKIP.
1738 int (*set_countermeasures)(void *priv, int enabled);
1741 * deauthenticate - Request driver to deauthenticate
1742 * @priv: private driver interface data
1743 * @addr: peer address (BSSID of the AP)
1744 * @reason_code: 16-bit reason code to be sent in the deauthentication
1747 * Returns: 0 on success, -1 on failure
1749 int (*deauthenticate)(void *priv, const u8 *addr, int reason_code);
1752 * associate - Request driver to associate
1753 * @priv: private driver interface data
1754 * @params: association parameters
1756 * Returns: 0 on success, -1 on failure
1758 int (*associate)(void *priv,
1759 struct wpa_driver_associate_params *params);
1762 * add_pmkid - Add PMKSA cache entry to the driver
1763 * @priv: private driver interface data
1764 * @bssid: BSSID for the PMKSA cache entry
1765 * @pmkid: PMKID for the PMKSA cache entry
1767 * Returns: 0 on success, -1 on failure
1769 * This function is called when a new PMK is received, as a result of
1770 * either normal authentication or RSN pre-authentication.
1772 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
1773 * associate(), add_pmkid() can be used to add new PMKSA cache entries
1774 * in the driver. If the driver uses wpa_ie from wpa_supplicant, this
1775 * driver_ops function does not need to be implemented. Likewise, if
1776 * the driver does not support WPA, this function is not needed.
1778 int (*add_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid);
1781 * remove_pmkid - Remove PMKSA cache entry to the driver
1782 * @priv: private driver interface data
1783 * @bssid: BSSID for the PMKSA cache entry
1784 * @pmkid: PMKID for the PMKSA cache entry
1786 * Returns: 0 on success, -1 on failure
1788 * This function is called when the supplicant drops a PMKSA cache
1789 * entry for any reason.
1791 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
1792 * associate(), remove_pmkid() can be used to synchronize PMKSA caches
1793 * between the driver and wpa_supplicant. If the driver uses wpa_ie
1794 * from wpa_supplicant, this driver_ops function does not need to be
1795 * implemented. Likewise, if the driver does not support WPA, this
1796 * function is not needed.
1798 int (*remove_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid);
1801 * flush_pmkid - Flush PMKSA cache
1802 * @priv: private driver interface data
1804 * Returns: 0 on success, -1 on failure
1806 * This function is called when the supplicant drops all PMKSA cache
1807 * entries for any reason.
1809 * If the driver generates RSN IE, i.e., it does not use wpa_ie in
1810 * associate(), remove_pmkid() can be used to synchronize PMKSA caches
1811 * between the driver and wpa_supplicant. If the driver uses wpa_ie
1812 * from wpa_supplicant, this driver_ops function does not need to be
1813 * implemented. Likewise, if the driver does not support WPA, this
1814 * function is not needed.
1816 int (*flush_pmkid)(void *priv);
1819 * get_capa - Get driver capabilities
1820 * @priv: private driver interface data
1822 * Returns: 0 on success, -1 on failure
1824 * Get driver/firmware/hardware capabilities.
1826 int (*get_capa)(void *priv, struct wpa_driver_capa *capa);
1829 * poll - Poll driver for association information
1830 * @priv: private driver interface data
1832 * This is an option callback that can be used when the driver does not
1833 * provide event mechanism for association events. This is called when
1834 * receiving WPA EAPOL-Key messages that require association
1835 * information. The driver interface is supposed to generate associnfo
1836 * event before returning from this callback function. In addition, the
1837 * driver interface should generate an association event after having
1838 * sent out associnfo.
1840 void (*poll)(void *priv);
1843 * get_ifname - Get interface name
1844 * @priv: private driver interface data
1846 * Returns: Pointer to the interface name. This can differ from the
1847 * interface name used in init() call. Init() is called first.
1849 * This optional function can be used to allow the driver interface to
1850 * replace the interface name with something else, e.g., based on an
1851 * interface mapping from a more descriptive name.
1853 const char * (*get_ifname)(void *priv);
1856 * get_mac_addr - Get own MAC address
1857 * @priv: private driver interface data
1859 * Returns: Pointer to own MAC address or %NULL on failure
1861 * This optional function can be used to get the own MAC address of the
1862 * device from the driver interface code. This is only needed if the
1863 * l2_packet implementation for the OS does not provide easy access to
1865 const u8 * (*get_mac_addr)(void *priv);
1868 * set_operstate - Sets device operating state to DORMANT or UP
1869 * @priv: private driver interface data
1870 * @state: 0 = dormant, 1 = up
1871 * Returns: 0 on success, -1 on failure
1873 * This is an optional function that can be used on operating systems
1874 * that support a concept of controlling network device state from user
1875 * space applications. This function, if set, gets called with
1876 * state = 1 when authentication has been completed and with state = 0
1877 * when connection is lost.
1879 int (*set_operstate)(void *priv, int state);
1882 * mlme_setprotection - MLME-SETPROTECTION.request primitive
1883 * @priv: Private driver interface data
1884 * @addr: Address of the station for which to set protection (may be
1885 * %NULL for group keys)
1886 * @protect_type: MLME_SETPROTECTION_PROTECT_TYPE_*
1887 * @key_type: MLME_SETPROTECTION_KEY_TYPE_*
1888 * Returns: 0 on success, -1 on failure
1890 * This is an optional function that can be used to set the driver to
1891 * require protection for Tx and/or Rx frames. This uses the layer
1892 * interface defined in IEEE 802.11i-2004 clause 10.3.22.1
1893 * (MLME-SETPROTECTION.request). Many drivers do not use explicit
1894 * set protection operation; instead, they set protection implicitly
1895 * based on configured keys.
1897 int (*mlme_setprotection)(void *priv, const u8 *addr, int protect_type,
1901 * get_hw_feature_data - Get hardware support data (channels and rates)
1902 * @priv: Private driver interface data
1903 * @num_modes: Variable for returning the number of returned modes
1904 * flags: Variable for returning hardware feature flags
1905 * Returns: Pointer to allocated hardware data on success or %NULL on
1906 * failure. Caller is responsible for freeing this.
1908 struct hostapd_hw_modes * (*get_hw_feature_data)(void *priv,
1913 * send_mlme - Send management frame from MLME
1914 * @priv: Private driver interface data
1915 * @data: IEEE 802.11 management frame with IEEE 802.11 header
1916 * @data_len: Size of the management frame
1917 * @noack: Do not wait for this frame to be acked (disable retries)
1918 * Returns: 0 on success, -1 on failure
1920 int (*send_mlme)(void *priv, const u8 *data, size_t data_len,
1924 * update_ft_ies - Update FT (IEEE 802.11r) IEs
1925 * @priv: Private driver interface data
1926 * @md: Mobility domain (2 octets) (also included inside ies)
1927 * @ies: FT IEs (MDIE, FTIE, ...) or %NULL to remove IEs
1928 * @ies_len: Length of FT IEs in bytes
1929 * Returns: 0 on success, -1 on failure
1931 * The supplicant uses this callback to let the driver know that keying
1932 * material for FT is available and that the driver can use the
1933 * provided IEs in the next message in FT authentication sequence.
1935 * This function is only needed for driver that support IEEE 802.11r
1936 * (Fast BSS Transition).
1938 int (*update_ft_ies)(void *priv, const u8 *md, const u8 *ies,
1942 * get_scan_results2 - Fetch the latest scan results
1943 * @priv: private driver interface data
1945 * Returns: Allocated buffer of scan results (caller is responsible for
1946 * freeing the data structure) on success, NULL on failure
1948 struct wpa_scan_results * (*get_scan_results2)(void *priv);
1951 * set_country - Set country
1952 * @priv: Private driver interface data
1953 * @alpha2: country to which to switch to
1954 * Returns: 0 on success, -1 on failure
1956 * This function is for drivers which support some form
1957 * of setting a regulatory domain.
1959 int (*set_country)(void *priv, const char *alpha2);
1962 * get_country - Get country
1963 * @priv: Private driver interface data
1964 * @alpha2: Buffer for returning country code (at least 3 octets)
1965 * Returns: 0 on success, -1 on failure
1967 int (*get_country)(void *priv, char *alpha2);
1970 * global_init - Global driver initialization
1971 * Returns: Pointer to private data (global), %NULL on failure
1973 * This optional function is called to initialize the driver wrapper
1974 * for global data, i.e., data that applies to all interfaces. If this
1975 * function is implemented, global_deinit() will also need to be
1976 * implemented to free the private data. The driver will also likely
1977 * use init2() function instead of init() to get the pointer to global
1978 * data available to per-interface initializer.
1980 void * (*global_init)(void);
1983 * global_deinit - Global driver deinitialization
1984 * @priv: private driver global data from global_init()
1986 * Terminate any global driver related functionality and free the
1987 * global data structure.
1989 void (*global_deinit)(void *priv);
1992 * init2 - Initialize driver interface (with global data)
1993 * @ctx: context to be used when calling wpa_supplicant functions,
1994 * e.g., wpa_supplicant_event()
1995 * @ifname: interface name, e.g., wlan0
1996 * @global_priv: private driver global data from global_init()
1997 * Returns: Pointer to private data, %NULL on failure
1999 * This function can be used instead of init() if the driver wrapper
2002 void * (*init2)(void *ctx, const char *ifname, void *global_priv);
2005 * get_interfaces - Get information about available interfaces
2006 * @global_priv: private driver global data from global_init()
2007 * Returns: Allocated buffer of interface information (caller is
2008 * responsible for freeing the data structure) on success, NULL on
2011 struct wpa_interface_info * (*get_interfaces)(void *global_priv);
2014 * scan2 - Request the driver to initiate scan
2015 * @priv: private driver interface data
2016 * @params: Scan parameters
2018 * Returns: 0 on success, -1 on failure
2020 * Once the scan results are ready, the driver should report scan
2021 * results event for wpa_supplicant which will eventually request the
2022 * results with wpa_driver_get_scan_results2().
2024 int (*scan2)(void *priv, struct wpa_driver_scan_params *params);
2027 * authenticate - Request driver to authenticate
2028 * @priv: private driver interface data
2029 * @params: authentication parameters
2030 * Returns: 0 on success, -1 on failure
2032 * This is an optional function that can be used with drivers that
2033 * support separate authentication and association steps, i.e., when
2034 * wpa_supplicant can act as the SME. If not implemented, associate()
2035 * function is expected to take care of IEEE 802.11 authentication,
2038 int (*authenticate)(void *priv,
2039 struct wpa_driver_auth_params *params);
2042 * set_ap - Set Beacon and Probe Response information for AP mode
2043 * @priv: Private driver interface data
2044 * @params: Parameters to use in AP mode
2046 * This function is used to configure Beacon template and/or extra IEs
2047 * to add for Beacon and Probe Response frames for the driver in
2048 * AP mode. The driver is responsible for building the full Beacon
2049 * frame by concatenating the head part with TIM IE generated by the
2050 * driver/firmware and finishing with the tail part. Depending on the
2051 * driver architectue, this can be done either by using the full
2052 * template or the set of additional IEs (e.g., WPS and P2P IE).
2053 * Similarly, Probe Response processing depends on the driver design.
2054 * If the driver (or firmware) takes care of replying to Probe Request
2055 * frames, the extra IEs provided here needs to be added to the Probe
2058 * Returns: 0 on success, -1 on failure
2060 int (*set_ap)(void *priv, struct wpa_driver_ap_params *params);
2063 * set_acl - Set ACL in AP mode
2064 * @priv: Private driver interface data
2065 * @params: Parameters to configure ACL
2066 * Returns: 0 on success, -1 on failure
2068 * This is used only for the drivers which support MAC address ACL.
2070 int (*set_acl)(void *priv, struct hostapd_acl_params *params);
2073 * hapd_init - Initialize driver interface (hostapd only)
2074 * @hapd: Pointer to hostapd context
2075 * @params: Configuration for the driver wrapper
2076 * Returns: Pointer to private data, %NULL on failure
2078 * This function is used instead of init() or init2() when the driver
2079 * wrapper is used with hostapd.
2081 void * (*hapd_init)(struct hostapd_data *hapd,
2082 struct wpa_init_params *params);
2085 * hapd_deinit - Deinitialize driver interface (hostapd only)
2086 * @priv: Private driver interface data from hapd_init()
2088 void (*hapd_deinit)(void *priv);
2091 * set_ieee8021x - Enable/disable IEEE 802.1X support (AP only)
2092 * @priv: Private driver interface data
2093 * @params: BSS parameters
2094 * Returns: 0 on success, -1 on failure
2096 * This is an optional function to configure the kernel driver to
2097 * enable/disable IEEE 802.1X support and set WPA/WPA2 parameters. This
2098 * can be left undefined (set to %NULL) if IEEE 802.1X support is
2099 * always enabled and the driver uses set_ap() to set WPA/RSN IE
2100 * for Beacon frames.
2102 * DEPRECATED - use set_ap() instead
2104 int (*set_ieee8021x)(void *priv, struct wpa_bss_params *params);
2107 * set_privacy - Enable/disable privacy (AP only)
2108 * @priv: Private driver interface data
2109 * @enabled: 1 = privacy enabled, 0 = disabled
2110 * Returns: 0 on success, -1 on failure
2112 * This is an optional function to configure privacy field in the
2113 * kernel driver for Beacon frames. This can be left undefined (set to
2114 * %NULL) if the driver uses the Beacon template from set_ap().
2116 * DEPRECATED - use set_ap() instead
2118 int (*set_privacy)(void *priv, int enabled);
2121 * get_seqnum - Fetch the current TSC/packet number (AP only)
2122 * @ifname: The interface name (main or virtual)
2123 * @priv: Private driver interface data
2124 * @addr: MAC address of the station or %NULL for group keys
2126 * @seq: Buffer for returning the latest used TSC/packet number
2127 * Returns: 0 on success, -1 on failure
2129 * This function is used to fetch the last used TSC/packet number for
2130 * a TKIP, CCMP, GCMP, or BIP/IGTK key. It is mainly used with group
2131 * keys, so there is no strict requirement on implementing support for
2132 * unicast keys (i.e., addr != %NULL).
2134 int (*get_seqnum)(const char *ifname, void *priv, const u8 *addr,
2138 * flush - Flush all association stations (AP only)
2139 * @priv: Private driver interface data
2140 * Returns: 0 on success, -1 on failure
2142 * This function requests the driver to disassociate all associated
2143 * stations. This function does not need to be implemented if the
2144 * driver does not process association frames internally.
2146 int (*flush)(void *priv);
2149 * set_generic_elem - Add IEs into Beacon/Probe Response frames (AP)
2150 * @priv: Private driver interface data
2151 * @elem: Information elements
2152 * @elem_len: Length of the elem buffer in octets
2153 * Returns: 0 on success, -1 on failure
2155 * This is an optional function to add information elements in the
2156 * kernel driver for Beacon and Probe Response frames. This can be left
2157 * undefined (set to %NULL) if the driver uses the Beacon template from
2160 * DEPRECATED - use set_ap() instead
2162 int (*set_generic_elem)(void *priv, const u8 *elem, size_t elem_len);
2165 * read_sta_data - Fetch station data
2166 * @priv: Private driver interface data
2167 * @data: Buffer for returning station information
2168 * @addr: MAC address of the station
2169 * Returns: 0 on success, -1 on failure
2171 int (*read_sta_data)(void *priv, struct hostap_sta_driver_data *data,
2175 * hapd_send_eapol - Send an EAPOL packet (AP only)
2176 * @priv: private driver interface data
2177 * @addr: Destination MAC address
2178 * @data: EAPOL packet starting with IEEE 802.1X header
2179 * @data_len: Length of the EAPOL packet in octets
2180 * @encrypt: Whether the frame should be encrypted
2181 * @own_addr: Source MAC address
2182 * @flags: WPA_STA_* flags for the destination station
2184 * Returns: 0 on success, -1 on failure
2186 int (*hapd_send_eapol)(void *priv, const u8 *addr, const u8 *data,
2187 size_t data_len, int encrypt,
2188 const u8 *own_addr, u32 flags);
2191 * sta_deauth - Deauthenticate a station (AP only)
2192 * @priv: Private driver interface data
2193 * @own_addr: Source address and BSSID for the Deauthentication frame
2194 * @addr: MAC address of the station to deauthenticate
2195 * @reason: Reason code for the Deauthentiation frame
2196 * Returns: 0 on success, -1 on failure
2198 * This function requests a specific station to be deauthenticated and
2199 * a Deauthentication frame to be sent to it.
2201 int (*sta_deauth)(void *priv, const u8 *own_addr, const u8 *addr,
2205 * sta_disassoc - Disassociate a station (AP only)
2206 * @priv: Private driver interface data
2207 * @own_addr: Source address and BSSID for the Disassociation frame
2208 * @addr: MAC address of the station to disassociate
2209 * @reason: Reason code for the Disassociation frame
2210 * Returns: 0 on success, -1 on failure
2212 * This function requests a specific station to be disassociated and
2213 * a Disassociation frame to be sent to it.
2215 int (*sta_disassoc)(void *priv, const u8 *own_addr, const u8 *addr,
2219 * sta_remove - Remove a station entry (AP only)
2220 * @priv: Private driver interface data
2221 * @addr: MAC address of the station to be removed
2222 * Returns: 0 on success, -1 on failure
2224 int (*sta_remove)(void *priv, const u8 *addr);
2227 * hapd_get_ssid - Get the current SSID (AP only)
2228 * @priv: Private driver interface data
2229 * @buf: Buffer for returning the SSID
2230 * @len: Maximum length of the buffer
2231 * Returns: Length of the SSID on success, -1 on failure
2233 * This function need not be implemented if the driver uses Beacon
2234 * template from set_ap() and does not reply to Probe Request frames.
2236 int (*hapd_get_ssid)(void *priv, u8 *buf, int len);
2239 * hapd_set_ssid - Set SSID (AP only)
2240 * @priv: Private driver interface data
2242 * @len: Length of the SSID in octets
2243 * Returns: 0 on success, -1 on failure
2245 * DEPRECATED - use set_ap() instead
2247 int (*hapd_set_ssid)(void *priv, const u8 *buf, int len);
2250 * hapd_set_countermeasures - Enable/disable TKIP countermeasures (AP)
2251 * @priv: Private driver interface data
2252 * @enabled: 1 = countermeasures enabled, 0 = disabled
2253 * Returns: 0 on success, -1 on failure
2255 * This need not be implemented if the driver does not take care of
2256 * association processing.
2258 int (*hapd_set_countermeasures)(void *priv, int enabled);
2261 * sta_add - Add a station entry
2262 * @priv: Private driver interface data
2263 * @params: Station parameters
2264 * Returns: 0 on success, -1 on failure
2266 * This function is used to add a station entry to the driver once the
2267 * station has completed association. This is only used if the driver
2268 * does not take care of association processing.
2270 * With TDLS, this function is also used to add or set (params->set 1)
2271 * TDLS peer entries.
2273 int (*sta_add)(void *priv, struct hostapd_sta_add_params *params);
2276 * get_inact_sec - Get station inactivity duration (AP only)
2277 * @priv: Private driver interface data
2278 * @addr: Station address
2279 * Returns: Number of seconds station has been inactive, -1 on failure
2281 int (*get_inact_sec)(void *priv, const u8 *addr);
2284 * sta_clear_stats - Clear station statistics (AP only)
2285 * @priv: Private driver interface data
2286 * @addr: Station address
2287 * Returns: 0 on success, -1 on failure
2289 int (*sta_clear_stats)(void *priv, const u8 *addr);
2292 * set_freq - Set channel/frequency (AP only)
2293 * @priv: Private driver interface data
2294 * @freq: Channel parameters
2295 * Returns: 0 on success, -1 on failure
2297 int (*set_freq)(void *priv, struct hostapd_freq_params *freq);
2300 * set_rts - Set RTS threshold
2301 * @priv: Private driver interface data
2302 * @rts: RTS threshold in octets
2303 * Returns: 0 on success, -1 on failure
2305 int (*set_rts)(void *priv, int rts);
2308 * set_frag - Set fragmentation threshold
2309 * @priv: Private driver interface data
2310 * @frag: Fragmentation threshold in octets
2311 * Returns: 0 on success, -1 on failure
2313 int (*set_frag)(void *priv, int frag);
2316 * sta_set_flags - Set station flags (AP only)
2317 * @priv: Private driver interface data
2318 * @addr: Station address
2319 * @total_flags: Bitmap of all WPA_STA_* flags currently set
2320 * @flags_or: Bitmap of WPA_STA_* flags to add
2321 * @flags_and: Bitmap of WPA_STA_* flags to us as a mask
2322 * Returns: 0 on success, -1 on failure
2324 int (*sta_set_flags)(void *priv, const u8 *addr,
2325 int total_flags, int flags_or, int flags_and);
2328 * set_tx_queue_params - Set TX queue parameters
2329 * @priv: Private driver interface data
2330 * @queue: Queue number (0 = VO, 1 = VI, 2 = BE, 3 = BK)
2334 * @burst_time: Maximum length for bursting in 0.1 msec units
2336 int (*set_tx_queue_params)(void *priv, int queue, int aifs, int cw_min,
2337 int cw_max, int burst_time);
2340 * if_add - Add a virtual interface
2341 * @priv: Private driver interface data
2342 * @type: Interface type
2343 * @ifname: Interface name for the new virtual interface
2344 * @addr: Local address to use for the interface or %NULL to use the
2345 * parent interface address
2346 * @bss_ctx: BSS context for %WPA_IF_AP_BSS interfaces
2347 * @drv_priv: Pointer for overwriting the driver context or %NULL if
2348 * not allowed (applies only to %WPA_IF_AP_BSS type)
2349 * @force_ifname: Buffer for returning an interface name that the
2350 * driver ended up using if it differs from the requested ifname
2351 * @if_addr: Buffer for returning the allocated interface address
2352 * (this may differ from the requested addr if the driver cannot
2353 * change interface address)
2354 * @bridge: Bridge interface to use or %NULL if no bridge configured
2355 * @use_existing: Whether to allow existing interface to be used
2356 * Returns: 0 on success, -1 on failure
2358 int (*if_add)(void *priv, enum wpa_driver_if_type type,
2359 const char *ifname, const u8 *addr, void *bss_ctx,
2360 void **drv_priv, char *force_ifname, u8 *if_addr,
2361 const char *bridge, int use_existing);
2364 * if_remove - Remove a virtual interface
2365 * @priv: Private driver interface data
2366 * @type: Interface type
2367 * @ifname: Interface name of the virtual interface to be removed
2368 * Returns: 0 on success, -1 on failure
2370 int (*if_remove)(void *priv, enum wpa_driver_if_type type,
2371 const char *ifname);
2374 * set_sta_vlan - Bind a station into a specific interface (AP only)
2375 * @priv: Private driver interface data
2376 * @ifname: Interface (main or virtual BSS or VLAN)
2377 * @addr: MAC address of the associated station
2379 * Returns: 0 on success, -1 on failure
2381 * This function is used to bind a station to a specific virtual
2382 * interface. It is only used if when virtual interfaces are supported,
2383 * e.g., to assign stations to different VLAN interfaces based on
2384 * information from a RADIUS server. This allows separate broadcast
2385 * domains to be used with a single BSS.
2387 int (*set_sta_vlan)(void *priv, const u8 *addr, const char *ifname,
2391 * commit - Optional commit changes handler (AP only)
2392 * @priv: driver private data
2393 * Returns: 0 on success, -1 on failure
2395 * This optional handler function can be registered if the driver
2396 * interface implementation needs to commit changes (e.g., by setting
2397 * network interface up) at the end of initial configuration. If set,
2398 * this handler will be called after initial setup has been completed.
2400 int (*commit)(void *priv);
2403 * send_ether - Send an ethernet packet (AP only)
2404 * @priv: private driver interface data
2405 * @dst: Destination MAC address
2406 * @src: Source MAC address
2408 * @data: EAPOL packet starting with IEEE 802.1X header
2409 * @data_len: Length of the EAPOL packet in octets
2410 * Returns: 0 on success, -1 on failure
2412 int (*send_ether)(void *priv, const u8 *dst, const u8 *src, u16 proto,
2413 const u8 *data, size_t data_len);
2416 * set_radius_acl_auth - Notification of RADIUS ACL change
2417 * @priv: Private driver interface data
2418 * @mac: MAC address of the station
2419 * @accepted: Whether the station was accepted
2420 * @session_timeout: Session timeout for the station
2421 * Returns: 0 on success, -1 on failure
2423 int (*set_radius_acl_auth)(void *priv, const u8 *mac, int accepted,
2424 u32 session_timeout);
2427 * set_radius_acl_expire - Notification of RADIUS ACL expiration
2428 * @priv: Private driver interface data
2429 * @mac: MAC address of the station
2430 * Returns: 0 on success, -1 on failure
2432 int (*set_radius_acl_expire)(void *priv, const u8 *mac);
2435 * set_ap_wps_ie - Add WPS IE(s) into Beacon/Probe Response frames (AP)
2436 * @priv: Private driver interface data
2437 * @beacon: WPS IE(s) for Beacon frames or %NULL to remove extra IE(s)
2438 * @proberesp: WPS IE(s) for Probe Response frames or %NULL to remove
2440 * @assocresp: WPS IE(s) for (Re)Association Response frames or %NULL
2441 * to remove extra IE(s)
2442 * Returns: 0 on success, -1 on failure
2444 * This is an optional function to add WPS IE in the kernel driver for
2445 * Beacon and Probe Response frames. This can be left undefined (set
2446 * to %NULL) if the driver uses the Beacon template from set_ap()
2447 * and does not process Probe Request frames. If the driver takes care
2448 * of (Re)Association frame processing, the assocresp buffer includes
2449 * WPS IE(s) that need to be added to (Re)Association Response frames
2450 * whenever a (Re)Association Request frame indicated use of WPS.
2452 * This will also be used to add P2P IE(s) into Beacon/Probe Response
2453 * frames when operating as a GO. The driver is responsible for adding
2454 * timing related attributes (e.g., NoA) in addition to the IEs
2455 * included here by appending them after these buffers. This call is
2456 * also used to provide Probe Response IEs for P2P Listen state
2457 * operations for drivers that generate the Probe Response frames
2460 * DEPRECATED - use set_ap() instead
2462 int (*set_ap_wps_ie)(void *priv, const struct wpabuf *beacon,
2463 const struct wpabuf *proberesp,
2464 const struct wpabuf *assocresp);
2467 * set_supp_port - Set IEEE 802.1X Supplicant Port status
2468 * @priv: Private driver interface data
2469 * @authorized: Whether the port is authorized
2470 * Returns: 0 on success, -1 on failure
2472 int (*set_supp_port)(void *priv, int authorized);
2475 * set_wds_sta - Bind a station into a 4-address WDS (AP only)
2476 * @priv: Private driver interface data
2477 * @addr: MAC address of the associated station
2478 * @aid: Association ID
2479 * @val: 1 = bind to 4-address WDS; 0 = unbind
2480 * @bridge_ifname: Bridge interface to use for the WDS station or %NULL
2481 * to indicate that bridge is not to be used
2482 * @ifname_wds: Buffer to return the interface name for the new WDS
2483 * station or %NULL to indicate name is not returned.
2484 * Returns: 0 on success, -1 on failure
2486 int (*set_wds_sta)(void *priv, const u8 *addr, int aid, int val,
2487 const char *bridge_ifname, char *ifname_wds);
2490 * send_action - Transmit an Action frame
2491 * @priv: Private driver interface data
2492 * @freq: Frequency (in MHz) of the channel
2493 * @wait: Time to wait off-channel for a response (in ms), or zero
2494 * @dst: Destination MAC address (Address 1)
2495 * @src: Source MAC address (Address 2)
2496 * @bssid: BSSID (Address 3)
2498 * @data_len: data length in octets
2499 @ @no_cck: Whether CCK rates must not be used to transmit this frame
2500 * Returns: 0 on success, -1 on failure
2502 * This command can be used to request the driver to transmit an action
2503 * frame to the specified destination.
2505 * If the %WPA_DRIVER_FLAGS_OFFCHANNEL_TX flag is set, the frame will
2506 * be transmitted on the given channel and the device will wait for a
2507 * response on that channel for the given wait time.
2509 * If the flag is not set, the wait time will be ignored. In this case,
2510 * if a remain-on-channel duration is in progress, the frame must be
2511 * transmitted on that channel; alternatively the frame may be sent on
2512 * the current operational channel (if in associated state in station
2513 * mode or while operating as an AP.)
2515 int (*send_action)(void *priv, unsigned int freq, unsigned int wait,
2516 const u8 *dst, const u8 *src, const u8 *bssid,
2517 const u8 *data, size_t data_len, int no_cck);
2520 * send_action_cancel_wait - Cancel action frame TX wait
2521 * @priv: Private driver interface data
2523 * This command cancels the wait time associated with sending an action
2524 * frame. It is only available when %WPA_DRIVER_FLAGS_OFFCHANNEL_TX is
2525 * set in the driver flags.
2527 void (*send_action_cancel_wait)(void *priv);
2530 * remain_on_channel - Remain awake on a channel
2531 * @priv: Private driver interface data
2532 * @freq: Frequency (in MHz) of the channel
2533 * @duration: Duration in milliseconds
2534 * Returns: 0 on success, -1 on failure
2536 * This command is used to request the driver to remain awake on the
2537 * specified channel for the specified duration and report received
2538 * Action frames with EVENT_RX_MGMT events. Optionally, received
2539 * Probe Request frames may also be requested to be reported by calling
2540 * probe_req_report(). These will be reported with EVENT_RX_PROBE_REQ.
2542 * The driver may not be at the requested channel when this function
2543 * returns, i.e., the return code is only indicating whether the
2544 * request was accepted. The caller will need to wait until the
2545 * EVENT_REMAIN_ON_CHANNEL event indicates that the driver has
2546 * completed the channel change. This may take some time due to other
2547 * need for the radio and the caller should be prepared to timing out
2548 * its wait since there are no guarantees on when this request can be
2551 int (*remain_on_channel)(void *priv, unsigned int freq,
2552 unsigned int duration);
2555 * cancel_remain_on_channel - Cancel remain-on-channel operation
2556 * @priv: Private driver interface data
2558 * This command can be used to cancel a remain-on-channel operation
2559 * before its originally requested duration has passed. This could be
2560 * used, e.g., when remain_on_channel() is used to request extra time
2561 * to receive a response to an Action frame and the response is
2562 * received when there is still unneeded time remaining on the
2563 * remain-on-channel operation.
2565 int (*cancel_remain_on_channel)(void *priv);
2568 * probe_req_report - Request Probe Request frames to be indicated
2569 * @priv: Private driver interface data
2570 * @report: Whether to report received Probe Request frames
2571 * Returns: 0 on success, -1 on failure (or if not supported)
2573 * This command can be used to request the driver to indicate when
2574 * Probe Request frames are received with EVENT_RX_PROBE_REQ events.
2575 * Since this operation may require extra resources, e.g., due to less
2576 * optimal hardware/firmware RX filtering, many drivers may disable
2577 * Probe Request reporting at least in station mode. This command is
2578 * used to notify the driver when the Probe Request frames need to be
2579 * reported, e.g., during remain-on-channel operations.
2581 int (*probe_req_report)(void *priv, int report);
2584 * deinit_ap - Deinitialize AP mode
2585 * @priv: Private driver interface data
2586 * Returns: 0 on success, -1 on failure (or if not supported)
2588 * This optional function can be used to disable AP mode related
2589 * configuration. If the interface was not dynamically added,
2590 * change the driver mode to station mode to allow normal station
2591 * operations like scanning to be completed.
2593 int (*deinit_ap)(void *priv);
2596 * deinit_p2p_cli - Deinitialize P2P client mode
2597 * @priv: Private driver interface data
2598 * Returns: 0 on success, -1 on failure (or if not supported)
2600 * This optional function can be used to disable P2P client mode. If the
2601 * interface was not dynamically added, change the interface type back
2604 int (*deinit_p2p_cli)(void *priv);
2607 * suspend - Notification on system suspend/hibernate event
2608 * @priv: Private driver interface data
2610 void (*suspend)(void *priv);
2613 * resume - Notification on system resume/thaw event
2614 * @priv: Private driver interface data
2616 void (*resume)(void *priv);
2619 * signal_monitor - Set signal monitoring parameters
2620 * @priv: Private driver interface data
2621 * @threshold: Threshold value for signal change events; 0 = disabled
2622 * @hysteresis: Minimum change in signal strength before indicating a
2624 * Returns: 0 on success, -1 on failure (or if not supported)
2626 * This function can be used to configure monitoring of signal strength
2627 * with the current AP. Whenever signal strength drops below the
2628 * %threshold value or increases above it, EVENT_SIGNAL_CHANGE event
2629 * should be generated assuming the signal strength has changed at
2630 * least %hysteresis from the previously indicated signal change event.
2632 int (*signal_monitor)(void *priv, int threshold, int hysteresis);
2635 * send_frame - Send IEEE 802.11 frame (testing use only)
2636 * @priv: Private driver interface data
2637 * @data: IEEE 802.11 frame with IEEE 802.11 header
2638 * @data_len: Size of the frame
2639 * @encrypt: Whether to encrypt the frame (if keys are set)
2640 * Returns: 0 on success, -1 on failure
2642 * This function is only used for debugging purposes and is not
2643 * required to be implemented for normal operations.
2645 int (*send_frame)(void *priv, const u8 *data, size_t data_len,
2649 * shared_freq - Get operating frequency of shared interface(s)
2650 * @priv: Private driver interface data
2651 * Returns: Operating frequency in MHz, 0 if no shared operation in
2652 * use, or -1 on failure
2654 * This command can be used to request the current operating frequency
2655 * of any virtual interface that shares the same radio to provide
2656 * information for channel selection for other virtual interfaces.
2658 int (*shared_freq)(void *priv);
2661 * get_noa - Get current Notice of Absence attribute payload
2662 * @priv: Private driver interface data
2663 * @buf: Buffer for returning NoA
2664 * @buf_len: Buffer length in octets
2665 * Returns: Number of octets used in buf, 0 to indicate no NoA is being
2666 * advertized, or -1 on failure
2668 * This function is used to fetch the current Notice of Absence
2669 * attribute value from GO.
2671 int (*get_noa)(void *priv, u8 *buf, size_t buf_len);
2674 * set_noa - Set Notice of Absence parameters for GO (testing)
2675 * @priv: Private driver interface data
2677 * @start: Start time in ms from next TBTT
2678 * @duration: Duration in ms
2679 * Returns: 0 on success or -1 on failure
2681 * This function is used to set Notice of Absence parameters for GO. It
2682 * is used only for testing. To disable NoA, all parameters are set to
2685 int (*set_noa)(void *priv, u8 count, int start, int duration);
2688 * set_p2p_powersave - Set P2P power save options
2689 * @priv: Private driver interface data
2690 * @legacy_ps: 0 = disable, 1 = enable, 2 = maximum PS, -1 = no change
2691 * @opp_ps: 0 = disable, 1 = enable, -1 = no change
2692 * @ctwindow: 0.. = change (msec), -1 = no change
2693 * Returns: 0 on success or -1 on failure
2695 int (*set_p2p_powersave)(void *priv, int legacy_ps, int opp_ps,
2699 * ampdu - Enable/disable aggregation
2700 * @priv: Private driver interface data
2701 * @ampdu: 1/0 = enable/disable A-MPDU aggregation
2702 * Returns: 0 on success or -1 on failure
2704 int (*ampdu)(void *priv, int ampdu);
2707 * get_radio_name - Get physical radio name for the device
2708 * @priv: Private driver interface data
2709 * Returns: Radio name or %NULL if not known
2711 * The returned data must not be modified by the caller. It is assumed
2712 * that any interface that has the same radio name as another is
2713 * sharing the same physical radio. This information can be used to
2714 * share scan results etc. information between the virtual interfaces
2715 * to speed up various operations.
2717 const char * (*get_radio_name)(void *priv);
2720 * send_tdls_mgmt - for sending TDLS management packets
2721 * @priv: private driver interface data
2722 * @dst: Destination (peer) MAC address
2723 * @action_code: TDLS action code for the mssage
2724 * @dialog_token: Dialog Token to use in the message (if needed)
2725 * @status_code: Status Code or Reason Code to use (if needed)
2726 * @peer_capab: TDLS peer capability (TDLS_PEER_* bitfield)
2727 * @initiator: Is the current end the TDLS link initiator
2728 * @buf: TDLS IEs to add to the message
2729 * @len: Length of buf in octets
2730 * Returns: 0 on success, negative (<0) on failure
2732 * This optional function can be used to send packet to driver which is
2733 * responsible for receiving and sending all TDLS packets.
2735 int (*send_tdls_mgmt)(void *priv, const u8 *dst, u8 action_code,
2736 u8 dialog_token, u16 status_code, u32 peer_capab,
2737 int initiator, const u8 *buf, size_t len);
2740 * tdls_oper - Ask the driver to perform high-level TDLS operations
2741 * @priv: Private driver interface data
2742 * @oper: TDLS high-level operation. See %enum tdls_oper
2743 * @peer: Destination (peer) MAC address
2744 * Returns: 0 on success, negative (<0) on failure
2746 * This optional function can be used to send high-level TDLS commands
2749 int (*tdls_oper)(void *priv, enum tdls_oper oper, const u8 *peer);
2752 * wnm_oper - Notify driver of the WNM frame reception
2753 * @priv: Private driver interface data
2754 * @oper: WNM operation. See %enum wnm_oper
2755 * @peer: Destination (peer) MAC address
2756 * @buf: Buffer for the driver to fill in (for getting IE)
2757 * @buf_len: Return the len of buf
2758 * Returns: 0 on success, negative (<0) on failure
2760 int (*wnm_oper)(void *priv, enum wnm_oper oper, const u8 *peer,
2761 u8 *buf, u16 *buf_len);
2764 * set_qos_map - Set QoS Map
2765 * @priv: Private driver interface data
2766 * @qos_map_set: QoS Map
2767 * @qos_map_set_len: Length of QoS Map
2769 int (*set_qos_map)(void *priv, const u8 *qos_map_set,
2770 u8 qos_map_set_len);
2773 * br_add_ip_neigh - Add a neigh to the bridge ip neigh table
2774 * @priv: Private driver interface data
2775 * @version: IP version of the IP address, 4 or 6
2776 * @ipaddr: IP address for the neigh entry
2777 * @prefixlen: IP address prefix length
2778 * @addr: Corresponding MAC address
2779 * Returns: 0 on success, negative (<0) on failure
2781 int (*br_add_ip_neigh)(void *priv, u8 version, const u8 *ipaddr,
2782 int prefixlen, const u8 *addr);
2785 * br_delete_ip_neigh - Remove a neigh from the bridge ip neigh table
2786 * @priv: Private driver interface data
2787 * @version: IP version of the IP address, 4 or 6
2788 * @ipaddr: IP address for the neigh entry
2789 * Returns: 0 on success, negative (<0) on failure
2791 int (*br_delete_ip_neigh)(void *priv, u8 version, const u8 *ipaddr);
2794 * br_port_set_attr - Set a bridge port attribute
2795 * @attr: Bridge port attribute to set
2796 * @val: Value to be set
2797 * Returns: 0 on success, negative (<0) on failure
2799 int (*br_port_set_attr)(void *priv, enum drv_br_port_attr attr,
2803 * br_port_set_attr - Set a bridge network parameter
2804 * @param: Bridge parameter to set
2805 * @val: Value to be set
2806 * Returns: 0 on success, negative (<0) on failure
2808 int (*br_set_net_param)(void *priv, enum drv_br_net_param param,
2812 * set_wowlan - Set wake-on-wireless triggers
2813 * @priv: Private driver interface data
2814 * @triggers: wowlan triggers
2816 int (*set_wowlan)(void *priv, const struct wowlan_triggers *triggers);
2819 * signal_poll - Get current connection information
2820 * @priv: Private driver interface data
2821 * @signal_info: Connection info structure
2823 int (*signal_poll)(void *priv, struct wpa_signal_info *signal_info);
2826 * set_authmode - Set authentication algorithm(s) for static WEP
2827 * @priv: Private driver interface data
2828 * @authmode: 1=Open System, 2=Shared Key, 3=both
2829 * Returns: 0 on success, -1 on failure
2831 * This function can be used to set authentication algorithms for AP
2832 * mode when static WEP is used. If the driver uses user space MLME/SME
2833 * implementation, there is no need to implement this function.
2835 * DEPRECATED - use set_ap() instead
2837 int (*set_authmode)(void *priv, int authmode);
2841 * driver_cmd - Execute driver-specific command
2842 * @priv: Private driver interface data
2843 * @cmd: Command to execute
2844 * @buf: Return buffer
2845 * @buf_len: Buffer length
2846 * Returns: 0 on success, -1 on failure
2848 int (*driver_cmd)(void *priv, char *cmd, char *buf, size_t buf_len);
2849 #endif /* ANDROID */
2852 * vendor_cmd - Execute vendor specific command
2853 * @priv: Private driver interface data
2854 * @vendor_id: Vendor id
2855 * @subcmd: Vendor command id
2856 * @data: Vendor command parameters (%NULL if no parameters)
2857 * @data_len: Data length
2858 * @buf: Return buffer (%NULL to ignore reply)
2859 * Returns: 0 on success, negative (<0) on failure
2861 * This function handles vendor specific commands that are passed to
2862 * the driver/device. The command is identified by vendor id and
2863 * command id. Parameters can be passed as argument to the command
2864 * in the data buffer. Reply (if any) will be filled in the supplied
2867 * The exact driver behavior is driver interface and vendor specific. As
2868 * an example, this will be converted to a vendor specific cfg80211
2869 * command in case of the nl80211 driver interface.
2871 int (*vendor_cmd)(void *priv, unsigned int vendor_id,
2872 unsigned int subcmd, const u8 *data, size_t data_len,
2873 struct wpabuf *buf);
2876 * set_rekey_info - Set rekey information
2877 * @priv: Private driver interface data
2879 * @kek_len: KEK length in octets
2881 * @kck_len: KCK length in octets
2882 * @replay_ctr: Current EAPOL-Key Replay Counter
2884 * This optional function can be used to provide information for the
2885 * driver/firmware to process EAPOL-Key frames in Group Key Handshake
2886 * while the host (including wpa_supplicant) is sleeping.
2888 void (*set_rekey_info)(void *priv, const u8 *kek, size_t kek_len,
2889 const u8 *kck, size_t kck_len,
2890 const u8 *replay_ctr);
2893 * sta_assoc - Station association indication
2894 * @priv: Private driver interface data
2895 * @own_addr: Source address and BSSID for association frame
2896 * @addr: MAC address of the station to associate
2897 * @reassoc: flag to indicate re-association
2898 * @status: association response status code
2899 * @ie: assoc response ie buffer
2900 * @len: ie buffer length
2901 * Returns: 0 on success, -1 on failure
2903 * This function indicates the driver to send (Re)Association
2904 * Response frame to the station.
2906 int (*sta_assoc)(void *priv, const u8 *own_addr, const u8 *addr,
2907 int reassoc, u16 status, const u8 *ie, size_t len);
2910 * sta_auth - Station authentication indication
2911 * @priv: Private driver interface data
2912 * @own_addr: Source address and BSSID for authentication frame
2913 * @addr: MAC address of the station to associate
2914 * @seq: authentication sequence number
2915 * @status: authentication response status code
2916 * @ie: authentication frame ie buffer
2917 * @len: ie buffer length
2919 * This function indicates the driver to send Authentication frame
2922 int (*sta_auth)(void *priv, const u8 *own_addr, const u8 *addr,
2923 u16 seq, u16 status, const u8 *ie, size_t len);
2926 * add_tspec - Add traffic stream
2927 * @priv: Private driver interface data
2928 * @addr: MAC address of the station to associate
2929 * @tspec_ie: tspec ie buffer
2930 * @tspec_ielen: tspec ie length
2931 * Returns: 0 on success, -1 on failure
2933 * This function adds the traffic steam for the station
2934 * and fills the medium_time in tspec_ie.
2936 int (*add_tspec)(void *priv, const u8 *addr, u8 *tspec_ie,
2937 size_t tspec_ielen);
2940 * add_sta_node - Add a station node in the driver
2941 * @priv: Private driver interface data
2942 * @addr: MAC address of the station to add
2943 * @auth_alg: authentication algorithm used by the station
2944 * Returns: 0 on success, -1 on failure
2946 * This function adds the station node in the driver, when
2947 * the station gets added by FT-over-DS.
2949 int (*add_sta_node)(void *priv, const u8 *addr, u16 auth_alg);
2952 * sched_scan - Request the driver to initiate scheduled scan
2953 * @priv: Private driver interface data
2954 * @params: Scan parameters
2955 * @interval: Interval between scan cycles in milliseconds
2956 * Returns: 0 on success, -1 on failure
2958 * This operation should be used for scheduled scan offload to
2959 * the hardware. Every time scan results are available, the
2960 * driver should report scan results event for wpa_supplicant
2961 * which will eventually request the results with
2962 * wpa_driver_get_scan_results2(). This operation is optional
2963 * and if not provided or if it returns -1, we fall back to
2964 * normal host-scheduled scans.
2966 int (*sched_scan)(void *priv, struct wpa_driver_scan_params *params,
2970 * stop_sched_scan - Request the driver to stop a scheduled scan
2971 * @priv: Private driver interface data
2972 * Returns: 0 on success, -1 on failure
2974 * This should cause the scheduled scan to be stopped and
2975 * results should stop being sent. Must be supported if
2976 * sched_scan is supported.
2978 int (*stop_sched_scan)(void *priv);
2981 * poll_client - Probe (null data or such) the given station
2982 * @priv: Private driver interface data
2983 * @own_addr: MAC address of sending interface
2984 * @addr: MAC address of the station to probe
2985 * @qos: Indicates whether station is QoS station
2987 * This function is used to verify whether an associated station is
2988 * still present. This function does not need to be implemented if the
2989 * driver provides such inactivity polling mechanism.
2991 void (*poll_client)(void *priv, const u8 *own_addr,
2992 const u8 *addr, int qos);
2995 * radio_disable - Disable/enable radio
2996 * @priv: Private driver interface data
2997 * @disabled: 1=disable 0=enable radio
2998 * Returns: 0 on success, -1 on failure
3000 * This optional command is for testing purposes. It can be used to
3001 * disable the radio on a testbed device to simulate out-of-radio-range
3004 int (*radio_disable)(void *priv, int disabled);
3007 * switch_channel - Announce channel switch and migrate the GO to the
3009 * @priv: Private driver interface data
3010 * @settings: Settings for CSA period and new channel
3011 * Returns: 0 on success, -1 on failure
3013 * This function is used to move the GO to the legacy STA channel to
3014 * avoid frequency conflict in single channel concurrency.
3016 int (*switch_channel)(void *priv, struct csa_settings *settings);
3019 * add_tx_ts - Add traffic stream
3020 * @priv: Private driver interface data
3021 * @tsid: Traffic stream ID
3022 * @addr: Receiver address
3023 * @user_prio: User priority of the traffic stream
3024 * @admitted_time: Admitted time for this TS in units of
3025 * 32 microsecond periods (per second).
3026 * Returns: 0 on success, -1 on failure
3028 int (*add_tx_ts)(void *priv, u8 tsid, const u8 *addr, u8 user_prio,
3032 * del_tx_ts - Delete traffic stream
3033 * @priv: Private driver interface data
3034 * @tsid: Traffic stream ID
3035 * @addr: Receiver address
3036 * Returns: 0 on success, -1 on failure
3038 int (*del_tx_ts)(void *priv, u8 tsid, const u8 *addr);
3041 * Enable channel-switching with TDLS peer
3042 * @priv: Private driver interface data
3043 * @addr: MAC address of the TDLS peer
3044 * @oper_class: Operating class of the switch channel
3045 * @params: Channel specification
3046 * Returns: 0 on success, -1 on failure
3048 * The function indicates to driver that it can start switching to a
3049 * different channel with a specified TDLS peer. The switching is
3050 * assumed on until canceled with tdls_disable_channel_switch().
3052 int (*tdls_enable_channel_switch)(
3053 void *priv, const u8 *addr, u8 oper_class,
3054 const struct hostapd_freq_params *params);
3057 * Disable channel switching with TDLS peer
3058 * @priv: Private driver interface data
3059 * @addr: MAC address of the TDLS peer
3060 * Returns: 0 on success, -1 on failure
3062 * This function indicates to the driver that it should stop switching
3063 * with a given TDLS peer.
3065 int (*tdls_disable_channel_switch)(void *priv, const u8 *addr);
3068 * start_dfs_cac - Listen for radar interference on the channel
3069 * @priv: Private driver interface data
3070 * @freq: Channel parameters
3071 * Returns: 0 on success, -1 on failure
3073 int (*start_dfs_cac)(void *priv, struct hostapd_freq_params *freq);
3076 * stop_ap - Removes beacon from AP
3077 * @priv: Private driver interface data
3078 * Returns: 0 on success, -1 on failure (or if not supported)
3080 * This optional function can be used to disable AP mode related
3081 * configuration. Unlike deinit_ap, it does not change to station
3084 int (*stop_ap)(void *priv);
3087 * get_survey - Retrieve survey data
3088 * @priv: Private driver interface data
3089 * @freq: If set, survey data for the specified frequency is only
3090 * being requested. If not set, all survey data is requested.
3091 * Returns: 0 on success, -1 on failure
3093 * Use this to retrieve:
3095 * - the observed channel noise floor
3096 * - the amount of time we have spent on the channel
3097 * - the amount of time during which we have spent on the channel that
3098 * the radio has determined the medium is busy and we cannot
3100 * - the amount of time we have spent receiving data
3101 * - the amount of time we have spent transmitting data
3103 * This data can be used for spectrum heuristics. One example is
3104 * Automatic Channel Selection (ACS). The channel survey data is
3105 * kept on a linked list on the channel data, one entry is added
3106 * for each survey. The min_nf of the channel is updated for each
3109 int (*get_survey)(void *priv, unsigned int freq);
3112 * status - Get driver interface status information
3113 * @priv: Private driver interface data
3114 * @buf: Buffer for printing tou the status information
3115 * @buflen: Maximum length of the buffer
3116 * Returns: Length of written status information or -1 on failure
3118 int (*status)(void *priv, char *buf, size_t buflen);
3121 * roaming - Set roaming policy for driver-based BSS selection
3122 * @priv: Private driver interface data
3123 * @allowed: Whether roaming within ESS is allowed
3124 * @bssid: Forced BSSID if roaming is disabled or %NULL if not set
3125 * Returns: Length of written status information or -1 on failure
3127 * This optional callback can be used to update roaming policy from the
3128 * associate() command (bssid being set there indicates that the driver
3129 * should not roam before getting this roaming() call to allow roaming.
3130 * If the driver does not indicate WPA_DRIVER_FLAGS_BSS_SELECTION
3131 * capability, roaming policy is handled within wpa_supplicant and there
3132 * is no need to implement or react to this callback.
3134 int (*roaming)(void *priv, int allowed, const u8 *bssid);
3137 * set_mac_addr - Set MAC address
3138 * @priv: Private driver interface data
3139 * @addr: MAC address to use or %NULL for setting back to permanent
3140 * Returns: 0 on success, -1 on failure
3142 int (*set_mac_addr)(void *priv, const u8 *addr);
3144 #ifdef CONFIG_MACSEC
3145 int (*macsec_init)(void *priv, struct macsec_init_params *params);
3147 int (*macsec_deinit)(void *priv);
3150 * enable_protect_frames - Set protect frames status
3151 * @priv: Private driver interface data
3152 * @enabled: TRUE = protect frames enabled
3153 * FALSE = protect frames disabled
3154 * Returns: 0 on success, -1 on failure (or if not supported)
3156 int (*enable_protect_frames)(void *priv, Boolean enabled);
3159 * set_replay_protect - Set replay protect status and window size
3160 * @priv: Private driver interface data
3161 * @enabled: TRUE = replay protect enabled
3162 * FALSE = replay protect disabled
3163 * @window: replay window size, valid only when replay protect enabled
3164 * Returns: 0 on success, -1 on failure (or if not supported)
3166 int (*set_replay_protect)(void *priv, Boolean enabled, u32 window);
3169 * set_current_cipher_suite - Set current cipher suite
3170 * @priv: Private driver interface data
3171 * @cs: EUI64 identifier
3172 * @cs_len: Length of the cs buffer in octets
3173 * Returns: 0 on success, -1 on failure (or if not supported)
3175 int (*set_current_cipher_suite)(void *priv, const u8 *cs,
3179 * enable_controlled_port - Set controlled port status
3180 * @priv: Private driver interface data
3181 * @enabled: TRUE = controlled port enabled
3182 * FALSE = controlled port disabled
3183 * Returns: 0 on success, -1 on failure (or if not supported)
3185 int (*enable_controlled_port)(void *priv, Boolean enabled);
3188 * get_receive_lowest_pn - Get receive lowest pn
3189 * @priv: Private driver interface data
3190 * @channel: secure channel
3191 * @an: association number
3192 * @lowest_pn: lowest accept pn
3193 * Returns: 0 on success, -1 on failure (or if not supported)
3195 int (*get_receive_lowest_pn)(void *priv, u32 channel, u8 an,
3199 * get_transmit_next_pn - Get transmit next pn
3200 * @priv: Private driver interface data
3201 * @channel: secure channel
3202 * @an: association number
3204 * Returns: 0 on success, -1 on failure (or if not supported)
3206 int (*get_transmit_next_pn)(void *priv, u32 channel, u8 an,
3210 * set_transmit_next_pn - Set transmit next pn
3211 * @priv: Private driver interface data
3212 * @channel: secure channel
3213 * @an: association number
3215 * Returns: 0 on success, -1 on failure (or if not supported)
3217 int (*set_transmit_next_pn)(void *priv, u32 channel, u8 an,
3221 * get_available_receive_sc - get available receive channel
3222 * @priv: Private driver interface data
3223 * @channel: secure channel
3224 * Returns: 0 on success, -1 on failure (or if not supported)
3226 int (*get_available_receive_sc)(void *priv, u32 *channel);
3229 * create_receive_sc - create secure channel for receiving
3230 * @priv: Private driver interface data
3231 * @channel: secure channel
3232 * @sci_addr: secure channel identifier - address
3233 * @sci_port: secure channel identifier - port
3234 * @conf_offset: confidentiality offset (0, 30, or 50)
3235 * @validation: frame validation policy (0 = Disabled, 1 = Checked,
3237 * Returns: 0 on success, -1 on failure (or if not supported)
3239 int (*create_receive_sc)(void *priv, u32 channel, const u8 *sci_addr,
3240 u16 sci_port, unsigned int conf_offset,
3244 * delete_receive_sc - delete secure connection for receiving
3245 * @priv: private driver interface data from init()
3246 * @channel: secure channel
3247 * Returns: 0 on success, -1 on failure
3249 int (*delete_receive_sc)(void *priv, u32 channel);
3252 * create_receive_sa - create secure association for receive
3253 * @priv: private driver interface data from init()
3254 * @channel: secure channel
3255 * @an: association number
3256 * @lowest_pn: the lowest packet number can be received
3257 * @sak: the secure association key
3258 * Returns: 0 on success, -1 on failure
3260 int (*create_receive_sa)(void *priv, u32 channel, u8 an,
3261 u32 lowest_pn, const u8 *sak);
3264 * enable_receive_sa - enable the SA for receive
3265 * @priv: private driver interface data from init()
3266 * @channel: secure channel
3267 * @an: association number
3268 * Returns: 0 on success, -1 on failure
3270 int (*enable_receive_sa)(void *priv, u32 channel, u8 an);
3273 * disable_receive_sa - disable SA for receive
3274 * @priv: private driver interface data from init()
3275 * @channel: secure channel index
3276 * @an: association number
3277 * Returns: 0 on success, -1 on failure
3279 int (*disable_receive_sa)(void *priv, u32 channel, u8 an);
3282 * get_available_transmit_sc - get available transmit channel
3283 * @priv: Private driver interface data
3284 * @channel: secure channel
3285 * Returns: 0 on success, -1 on failure (or if not supported)
3287 int (*get_available_transmit_sc)(void *priv, u32 *channel);
3290 * create_transmit_sc - create secure connection for transmit
3291 * @priv: private driver interface data from init()
3292 * @channel: secure channel
3293 * @sci_addr: secure channel identifier - address
3294 * @sci_port: secure channel identifier - port
3295 * Returns: 0 on success, -1 on failure
3297 int (*create_transmit_sc)(void *priv, u32 channel, const u8 *sci_addr,
3298 u16 sci_port, unsigned int conf_offset);
3301 * delete_transmit_sc - delete secure connection for transmit
3302 * @priv: private driver interface data from init()
3303 * @channel: secure channel
3304 * Returns: 0 on success, -1 on failure
3306 int (*delete_transmit_sc)(void *priv, u32 channel);
3309 * create_transmit_sa - create secure association for transmit
3310 * @priv: private driver interface data from init()
3311 * @channel: secure channel index
3312 * @an: association number
3313 * @next_pn: the packet number used as next transmit packet
3314 * @confidentiality: True if the SA is to provide confidentiality
3315 * as well as integrity
3316 * @sak: the secure association key
3317 * Returns: 0 on success, -1 on failure
3319 int (*create_transmit_sa)(void *priv, u32 channel, u8 an, u32 next_pn,
3320 Boolean confidentiality, const u8 *sak);
3323 * enable_transmit_sa - enable SA for transmit
3324 * @priv: private driver interface data from init()
3325 * @channel: secure channel
3326 * @an: association number
3327 * Returns: 0 on success, -1 on failure
3329 int (*enable_transmit_sa)(void *priv, u32 channel, u8 an);
3332 * disable_transmit_sa - disable SA for transmit
3333 * @priv: private driver interface data from init()
3334 * @channel: secure channel
3335 * @an: association number
3336 * Returns: 0 on success, -1 on failure
3338 int (*disable_transmit_sa)(void *priv, u32 channel, u8 an);
3339 #endif /* CONFIG_MACSEC */
3342 * init_mesh - Driver specific initialization for mesh
3343 * @priv: Private driver interface data
3344 * Returns: 0 on success, -1 on failure
3346 int (*init_mesh)(void *priv);
3349 * join_mesh - Join a mesh network
3350 * @priv: Private driver interface data
3351 * @params: Mesh configuration parameters
3352 * Returns: 0 on success, -1 on failure
3354 int (*join_mesh)(void *priv,
3355 struct wpa_driver_mesh_join_params *params);
3358 * leave_mesh - Leave a mesh network
3359 * @priv: Private driver interface data
3360 * Returns 0 on success, -1 on failure
3362 int (*leave_mesh)(void *priv);
3365 * do_acs - Automatically select channel
3366 * @priv: Private driver interface data
3367 * @params: Parameters for ACS
3368 * Returns 0 on success, -1 on failure
3370 * This command can be used to offload ACS to the driver if the driver
3371 * indicates support for such offloading (WPA_DRIVER_FLAGS_ACS_OFFLOAD).
3373 int (*do_acs)(void *priv, struct drv_acs_params *params);
3378 * enum wpa_event_type - Event type for wpa_supplicant_event() calls
3380 enum wpa_event_type {
3382 * EVENT_ASSOC - Association completed
3384 * This event needs to be delivered when the driver completes IEEE
3385 * 802.11 association or reassociation successfully.
3386 * wpa_driver_ops::get_bssid() is expected to provide the current BSSID
3387 * after this event has been generated. In addition, optional
3388 * EVENT_ASSOCINFO may be generated just before EVENT_ASSOC to provide
3389 * more information about the association. If the driver interface gets
3390 * both of these events at the same time, it can also include the
3391 * assoc_info data in EVENT_ASSOC call.
3396 * EVENT_DISASSOC - Association lost
3398 * This event should be called when association is lost either due to
3399 * receiving deauthenticate or disassociate frame from the AP or when
3400 * sending either of these frames to the current AP. If the driver
3401 * supports separate deauthentication event, EVENT_DISASSOC should only
3402 * be used for disassociation and EVENT_DEAUTH for deauthentication.
3403 * In AP mode, union wpa_event_data::disassoc_info is required.
3408 * EVENT_MICHAEL_MIC_FAILURE - Michael MIC (TKIP) detected
3410 * This event must be delivered when a Michael MIC error is detected by
3411 * the local driver. Additional data for event processing is
3412 * provided with union wpa_event_data::michael_mic_failure. This
3413 * information is used to request new encyption key and to initiate
3414 * TKIP countermeasures if needed.
3416 EVENT_MICHAEL_MIC_FAILURE,
3419 * EVENT_SCAN_RESULTS - Scan results available
3421 * This event must be called whenever scan results are available to be
3422 * fetched with struct wpa_driver_ops::get_scan_results(). This event
3423 * is expected to be used some time after struct wpa_driver_ops::scan()
3424 * is called. If the driver provides an unsolicited event when the scan
3425 * has been completed, this event can be used to trigger
3426 * EVENT_SCAN_RESULTS call. If such event is not available from the
3427 * driver, the driver wrapper code is expected to use a registered
3428 * timeout to generate EVENT_SCAN_RESULTS call after the time that the
3429 * scan is expected to be completed. Optional information about
3430 * completed scan can be provided with union wpa_event_data::scan_info.
3435 * EVENT_ASSOCINFO - Report optional extra information for association
3437 * This event can be used to report extra association information for
3438 * EVENT_ASSOC processing. This extra information includes IEs from
3439 * association frames and Beacon/Probe Response frames in union
3440 * wpa_event_data::assoc_info. EVENT_ASSOCINFO must be send just before
3441 * EVENT_ASSOC. Alternatively, the driver interface can include
3442 * assoc_info data in the EVENT_ASSOC call if it has all the
3443 * information available at the same point.
3448 * EVENT_INTERFACE_STATUS - Report interface status changes
3450 * This optional event can be used to report changes in interface
3451 * status (interface added/removed) using union
3452 * wpa_event_data::interface_status. This can be used to trigger
3453 * wpa_supplicant to stop and re-start processing for the interface,
3454 * e.g., when a cardbus card is ejected/inserted.
3456 EVENT_INTERFACE_STATUS,
3459 * EVENT_PMKID_CANDIDATE - Report a candidate AP for pre-authentication
3461 * This event can be used to inform wpa_supplicant about candidates for
3462 * RSN (WPA2) pre-authentication. If wpa_supplicant is not responsible
3463 * for scan request (ap_scan=2 mode), this event is required for
3464 * pre-authentication. If wpa_supplicant is performing scan request
3465 * (ap_scan=1), this event is optional since scan results can be used
3466 * to add pre-authentication candidates. union
3467 * wpa_event_data::pmkid_candidate is used to report the BSSID of the
3468 * candidate and priority of the candidate, e.g., based on the signal
3469 * strength, in order to try to pre-authenticate first with candidates
3470 * that are most likely targets for re-association.
3472 * EVENT_PMKID_CANDIDATE can be called whenever the driver has updates
3473 * on the candidate list. In addition, it can be called for the current
3474 * AP and APs that have existing PMKSA cache entries. wpa_supplicant
3475 * will automatically skip pre-authentication in cases where a valid
3476 * PMKSA exists. When more than one candidate exists, this event should
3477 * be generated once for each candidate.
3479 * Driver will be notified about successful pre-authentication with
3480 * struct wpa_driver_ops::add_pmkid() calls.
3482 EVENT_PMKID_CANDIDATE,
3485 * EVENT_STKSTART - Request STK handshake (MLME-STKSTART.request)
3487 * This event can be used to inform wpa_supplicant about desire to set
3488 * up secure direct link connection between two stations as defined in
3489 * IEEE 802.11e with a new PeerKey mechanism that replaced the original
3490 * STAKey negotiation. The caller will need to set peer address for the
3496 * EVENT_TDLS - Request TDLS operation
3498 * This event can be used to request a TDLS operation to be performed.
3503 * EVENT_FT_RESPONSE - Report FT (IEEE 802.11r) response IEs
3505 * The driver is expected to report the received FT IEs from
3506 * FT authentication sequence from the AP. The FT IEs are included in
3507 * the extra information in union wpa_event_data::ft_ies.
3512 * EVENT_IBSS_RSN_START - Request RSN authentication in IBSS
3514 * The driver can use this event to inform wpa_supplicant about a STA
3515 * in an IBSS with which protected frames could be exchanged. This
3516 * event starts RSN authentication with the other STA to authenticate
3517 * the STA and set up encryption keys with it.
3519 EVENT_IBSS_RSN_START,
3522 * EVENT_AUTH - Authentication result
3524 * This event should be called when authentication attempt has been
3525 * completed. This is only used if the driver supports separate
3526 * authentication step (struct wpa_driver_ops::authenticate).
3527 * Information about authentication result is included in
3528 * union wpa_event_data::auth.
3533 * EVENT_DEAUTH - Authentication lost
3535 * This event should be called when authentication is lost either due
3536 * to receiving deauthenticate frame from the AP or when sending that
3537 * frame to the current AP.
3538 * In AP mode, union wpa_event_data::deauth_info is required.
3543 * EVENT_ASSOC_REJECT - Association rejected
3545 * This event should be called when (re)association attempt has been
3546 * rejected by the AP. Information about the association response is
3547 * included in union wpa_event_data::assoc_reject.
3552 * EVENT_AUTH_TIMED_OUT - Authentication timed out
3554 EVENT_AUTH_TIMED_OUT,
3557 * EVENT_ASSOC_TIMED_OUT - Association timed out
3559 EVENT_ASSOC_TIMED_OUT,
3562 * EVENT_WPS_BUTTON_PUSHED - Report hardware push button press for WPS
3564 EVENT_WPS_BUTTON_PUSHED,
3567 * EVENT_TX_STATUS - Report TX status
3572 * EVENT_RX_FROM_UNKNOWN - Report RX from unknown STA
3574 EVENT_RX_FROM_UNKNOWN,
3577 * EVENT_RX_MGMT - Report RX of a management frame
3582 * EVENT_REMAIN_ON_CHANNEL - Remain-on-channel duration started
3584 * This event is used to indicate when the driver has started the
3585 * requested remain-on-channel duration. Information about the
3586 * operation is included in union wpa_event_data::remain_on_channel.
3588 EVENT_REMAIN_ON_CHANNEL,
3591 * EVENT_CANCEL_REMAIN_ON_CHANNEL - Remain-on-channel timed out
3593 * This event is used to indicate when the driver has completed
3594 * remain-on-channel duration, i.e., may noot be available on the
3595 * requested channel anymore. Information about the
3596 * operation is included in union wpa_event_data::remain_on_channel.
3598 EVENT_CANCEL_REMAIN_ON_CHANNEL,
3601 * EVENT_RX_PROBE_REQ - Indicate received Probe Request frame
3603 * This event is used to indicate when a Probe Request frame has been
3604 * received. Information about the received frame is included in
3605 * union wpa_event_data::rx_probe_req. The driver is required to report
3606 * these events only after successfully completed probe_req_report()
3607 * commands to request the events (i.e., report parameter is non-zero)
3608 * in station mode. In AP mode, Probe Request frames should always be
3614 * EVENT_NEW_STA - New wired device noticed
3616 * This event is used to indicate that a new device has been detected
3617 * in a network that does not use association-like functionality (i.e.,
3618 * mainly wired Ethernet). This can be used to start EAPOL
3619 * authenticator when receiving a frame from a device. The address of
3620 * the device is included in union wpa_event_data::new_sta.
3625 * EVENT_EAPOL_RX - Report received EAPOL frame
3627 * When in AP mode with hostapd, this event is required to be used to
3628 * deliver the receive EAPOL frames from the driver.
3633 * EVENT_SIGNAL_CHANGE - Indicate change in signal strength
3635 * This event is used to indicate changes in the signal strength
3636 * observed in frames received from the current AP if signal strength
3637 * monitoring has been enabled with signal_monitor().
3639 EVENT_SIGNAL_CHANGE,
3642 * EVENT_INTERFACE_ENABLED - Notify that interface was enabled
3644 * This event is used to indicate that the interface was enabled after
3645 * having been previously disabled, e.g., due to rfkill.
3647 EVENT_INTERFACE_ENABLED,
3650 * EVENT_INTERFACE_DISABLED - Notify that interface was disabled
3652 * This event is used to indicate that the interface was disabled,
3653 * e.g., due to rfkill.
3655 EVENT_INTERFACE_DISABLED,
3658 * EVENT_CHANNEL_LIST_CHANGED - Channel list changed
3660 * This event is used to indicate that the channel list has changed,
3661 * e.g., because of a regulatory domain change triggered by scan
3662 * results including an AP advertising a country code.
3664 EVENT_CHANNEL_LIST_CHANGED,
3667 * EVENT_INTERFACE_UNAVAILABLE - Notify that interface is unavailable
3669 * This event is used to indicate that the driver cannot maintain this
3670 * interface in its operation mode anymore. The most likely use for
3671 * this is to indicate that AP mode operation is not available due to
3672 * operating channel would need to be changed to a DFS channel when
3673 * the driver does not support radar detection and another virtual
3674 * interfaces caused the operating channel to change. Other similar
3675 * resource conflicts could also trigger this for station mode
3676 * interfaces. This event can be propagated when channel switching
3679 EVENT_INTERFACE_UNAVAILABLE,
3682 * EVENT_BEST_CHANNEL
3684 * Driver generates this event whenever it detects a better channel
3685 * (e.g., based on RSSI or channel use). This information can be used
3686 * to improve channel selection for a new AP/P2P group.
3691 * EVENT_UNPROT_DEAUTH - Unprotected Deauthentication frame received
3693 * This event should be called when a Deauthentication frame is dropped
3694 * due to it not being protected (MFP/IEEE 802.11w).
3695 * union wpa_event_data::unprot_deauth is required to provide more
3696 * details of the frame.
3698 EVENT_UNPROT_DEAUTH,
3701 * EVENT_UNPROT_DISASSOC - Unprotected Disassociation frame received
3703 * This event should be called when a Disassociation frame is dropped
3704 * due to it not being protected (MFP/IEEE 802.11w).
3705 * union wpa_event_data::unprot_disassoc is required to provide more
3706 * details of the frame.
3708 EVENT_UNPROT_DISASSOC,
3711 * EVENT_STATION_LOW_ACK
3713 * Driver generates this event whenever it detected that a particular
3714 * station was lost. Detection can be through massive transmission
3715 * failures for example.
3717 EVENT_STATION_LOW_ACK,
3720 * EVENT_IBSS_PEER_LOST - IBSS peer not reachable anymore
3722 EVENT_IBSS_PEER_LOST,
3725 * EVENT_DRIVER_GTK_REKEY - Device/driver did GTK rekey
3727 * This event carries the new replay counter to notify wpa_supplicant
3728 * of the current EAPOL-Key Replay Counter in case the driver/firmware
3729 * completed Group Key Handshake while the host (including
3730 * wpa_supplicant was sleeping).
3732 EVENT_DRIVER_GTK_REKEY,
3735 * EVENT_SCHED_SCAN_STOPPED - Scheduled scan was stopped
3737 EVENT_SCHED_SCAN_STOPPED,
3740 * EVENT_DRIVER_CLIENT_POLL_OK - Station responded to poll
3742 * This event indicates that the station responded to the poll
3743 * initiated with @poll_client.
3745 EVENT_DRIVER_CLIENT_POLL_OK,
3748 * EVENT_EAPOL_TX_STATUS - notify of EAPOL TX status
3750 EVENT_EAPOL_TX_STATUS,
3753 * EVENT_CH_SWITCH - AP or GO decided to switch channels
3755 * Described in wpa_event_data.ch_switch
3760 * EVENT_WNM - Request WNM operation
3762 * This event can be used to request a WNM operation to be performed.
3767 * EVENT_CONNECT_FAILED_REASON - Connection failure reason in AP mode
3769 * This event indicates that the driver reported a connection failure
3770 * with the specified client (for example, max client reached, etc.) in
3773 EVENT_CONNECT_FAILED_REASON,
3776 * EVENT_DFS_RADAR_DETECTED - Notify of radar detection
3778 * A radar has been detected on the supplied frequency, hostapd should
3779 * react accordingly (e.g., change channel).
3781 EVENT_DFS_RADAR_DETECTED,
3784 * EVENT_DFS_CAC_FINISHED - Notify that channel availability check has been completed
3786 * After a successful CAC, the channel can be marked clear and used.
3788 EVENT_DFS_CAC_FINISHED,
3791 * EVENT_DFS_CAC_ABORTED - Notify that channel availability check has been aborted
3793 * The CAC was not successful, and the channel remains in the previous
3794 * state. This may happen due to a radar beeing detected or other
3795 * external influences.
3797 EVENT_DFS_CAC_ABORTED,
3800 * EVENT_DFS_NOP_FINISHED - Notify that non-occupancy period is over
3802 * The channel which was previously unavailable is now available again.
3804 EVENT_DFS_NOP_FINISHED,
3807 * EVENT_SURVEY - Received survey data
3809 * This event gets triggered when a driver query is issued for survey
3810 * data and the requested data becomes available. The returned data is
3811 * stored in struct survey_results. The results provide at most one
3812 * survey entry for each frequency and at minimum will provide one
3813 * survey entry for one frequency. The survey data can be os_malloc()'d
3814 * and then os_free()'d, so the event callback must only copy data.
3819 * EVENT_SCAN_STARTED - Scan started
3821 * This indicates that driver has started a scan operation either based
3822 * on a request from wpa_supplicant/hostapd or from another application.
3823 * EVENT_SCAN_RESULTS is used to indicate when the scan has been
3824 * completed (either successfully or by getting cancelled).
3829 * EVENT_AVOID_FREQUENCIES - Received avoid frequency range
3831 * This event indicates a set of frequency ranges that should be avoided
3832 * to reduce issues due to interference or internal co-existence
3833 * information in the driver.
3835 EVENT_AVOID_FREQUENCIES,
3838 * EVENT_NEW_PEER_CANDIDATE - new (unknown) mesh peer notification
3840 EVENT_NEW_PEER_CANDIDATE,
3843 * EVENT_ACS_CHANNEL_SELECTED - Received selected channels by ACS
3845 * Indicates a pair of primary and secondary channels chosen by ACS
3848 EVENT_ACS_CHANNEL_SELECTED,
3851 * EVENT_DFS_CAC_STARTED - Notify that channel availability check has
3854 * This event indicates that channel availability check has been started
3855 * on a DFS frequency by a driver that supports DFS Offload.
3857 EVENT_DFS_CAC_STARTED,
3862 * struct freq_survey - Channel survey info
3864 * @ifidx: Interface index in which this survey was observed
3865 * @freq: Center of frequency of the surveyed channel
3866 * @nf: Channel noise floor in dBm
3867 * @channel_time: Amount of time in ms the radio spent on the channel
3868 * @channel_time_busy: Amount of time in ms the radio detected some signal
3869 * that indicated to the radio the channel was not clear
3870 * @channel_time_rx: Amount of time the radio spent receiving data
3871 * @channel_time_tx: Amount of time the radio spent transmitting data
3872 * @filled: bitmask indicating which fields have been reported, see
3873 * SURVEY_HAS_* defines.
3874 * @list: Internal list pointers
3876 struct freq_survey {
3881 u64 channel_time_busy;
3882 u64 channel_time_rx;
3883 u64 channel_time_tx;
3884 unsigned int filled;
3885 struct dl_list list;
3888 #define SURVEY_HAS_NF BIT(0)
3889 #define SURVEY_HAS_CHAN_TIME BIT(1)
3890 #define SURVEY_HAS_CHAN_TIME_BUSY BIT(2)
3891 #define SURVEY_HAS_CHAN_TIME_RX BIT(3)
3892 #define SURVEY_HAS_CHAN_TIME_TX BIT(4)
3896 * union wpa_event_data - Additional data for wpa_supplicant_event() calls
3898 union wpa_event_data {
3900 * struct assoc_info - Data for EVENT_ASSOC and EVENT_ASSOCINFO events
3902 * This structure is optional for EVENT_ASSOC calls and required for
3903 * EVENT_ASSOCINFO calls. By using EVENT_ASSOC with this data, the
3904 * driver interface does not need to generate separate EVENT_ASSOCINFO
3909 * reassoc - Flag to indicate association or reassociation
3914 * req_ies - (Re)Association Request IEs
3916 * If the driver generates WPA/RSN IE, this event data must be
3917 * returned for WPA handshake to have needed information. If
3918 * wpa_supplicant-generated WPA/RSN IE is used, this
3919 * information event is optional.
3921 * This should start with the first IE (fixed fields before IEs
3922 * are not included).
3927 * req_ies_len - Length of req_ies in bytes
3932 * resp_ies - (Re)Association Response IEs
3934 * Optional association data from the driver. This data is not
3935 * required WPA, but may be useful for some protocols and as
3936 * such, should be reported if this is available to the driver
3939 * This should start with the first IE (fixed fields before IEs
3940 * are not included).
3945 * resp_ies_len - Length of resp_ies in bytes
3947 size_t resp_ies_len;
3950 * beacon_ies - Beacon or Probe Response IEs
3952 * Optional Beacon/ProbeResp data: IEs included in Beacon or
3953 * Probe Response frames from the current AP (i.e., the one
3954 * that the client just associated with). This information is
3955 * used to update WPA/RSN IE for the AP. If this field is not
3956 * set, the results from previous scan will be used. If no
3957 * data for the new AP is found, scan results will be requested
3958 * again (without scan request). At this point, the driver is
3959 * expected to provide WPA/RSN IE for the AP (if WPA/WPA2 is
3962 * This should start with the first IE (fixed fields before IEs
3963 * are not included).
3965 const u8 *beacon_ies;
3968 * beacon_ies_len - Length of beacon_ies */
3969 size_t beacon_ies_len;
3972 * freq - Frequency of the operational channel in MHz
3977 * wmm_params - WMM parameters used in this association.
3979 struct wmm_params wmm_params;
3982 * addr - Station address (for AP mode)
3987 * The following is the key management offload information
3990 * @key_replay_ctr_len
3998 * authorized - Status of key management offload,
4004 * key_replay_ctr - Key replay counter value last used
4005 * in a valid EAPOL-Key frame
4007 const u8 *key_replay_ctr;
4010 * key_replay_ctr_len - The length of key_replay_ctr
4012 size_t key_replay_ctr_len;
4015 * ptk_kck - The derived PTK KCK
4020 * ptk_kek_len - The length of ptk_kck
4025 * ptk_kek - The derived PTK KEK
4030 * ptk_kek_len - The length of ptk_kek
4036 * struct disassoc_info - Data for EVENT_DISASSOC events
4038 struct disassoc_info {
4040 * addr - Station address (for AP mode)
4045 * reason_code - Reason Code (host byte order) used in
4046 * Deauthentication frame
4051 * ie - Optional IE(s) in Disassociation frame
4056 * ie_len - Length of ie buffer in octets
4061 * locally_generated - Whether the frame was locally generated
4063 int locally_generated;
4067 * struct deauth_info - Data for EVENT_DEAUTH events
4069 struct deauth_info {
4071 * addr - Station address (for AP mode)
4076 * reason_code - Reason Code (host byte order) used in
4077 * Deauthentication frame
4082 * ie - Optional IE(s) in Deauthentication frame
4087 * ie_len - Length of ie buffer in octets
4092 * locally_generated - Whether the frame was locally generated
4094 int locally_generated;
4098 * struct michael_mic_failure - Data for EVENT_MICHAEL_MIC_FAILURE
4100 struct michael_mic_failure {
4103 } michael_mic_failure;
4106 * struct interface_status - Data for EVENT_INTERFACE_STATUS
4108 struct interface_status {
4111 EVENT_INTERFACE_ADDED, EVENT_INTERFACE_REMOVED
4116 * struct pmkid_candidate - Data for EVENT_PMKID_CANDIDATE
4118 struct pmkid_candidate {
4119 /** BSSID of the PMKID candidate */
4121 /** Smaller the index, higher the priority */
4123 /** Whether RSN IE includes pre-authenticate flag */
4128 * struct stkstart - Data for EVENT_STKSTART
4135 * struct tdls - Data for EVENT_TDLS
4141 TDLS_REQUEST_TEARDOWN
4143 u16 reason_code; /* for teardown */
4147 * struct wnm - Data for EVENT_WNM
4165 * struct ft_ies - FT information elements (EVENT_FT_RESPONSE)
4167 * During FT (IEEE 802.11r) authentication sequence, the driver is
4168 * expected to use this event to report received FT IEs (MDIE, FTIE,
4169 * RSN IE, TIE, possible resource request) to the supplicant. The FT
4170 * IEs for the next message will be delivered through the
4171 * struct wpa_driver_ops::update_ft_ies() callback.
4177 u8 target_ap[ETH_ALEN];
4178 /** Optional IE(s), e.g., WMM TSPEC(s), for RIC-Request */
4180 /** Length of ric_ies buffer in octets */
4185 * struct ibss_rsn_start - Data for EVENT_IBSS_RSN_START
4187 struct ibss_rsn_start {
4192 * struct auth_info - Data for EVENT_AUTH events
4198 u16 auth_transaction;
4205 * struct assoc_reject - Data for EVENT_ASSOC_REJECT events
4207 struct assoc_reject {
4209 * bssid - BSSID of the AP that rejected association
4214 * resp_ies - (Re)Association Response IEs
4216 * Optional association data from the driver. This data is not
4217 * required WPA, but may be useful for some protocols and as
4218 * such, should be reported if this is available to the driver
4221 * This should start with the first IE (fixed fields before IEs
4222 * are not included).
4227 * resp_ies_len - Length of resp_ies in bytes
4229 size_t resp_ies_len;
4232 * status_code - Status Code from (Re)association Response
4237 struct timeout_event {
4242 * struct tx_status - Data for EVENT_TX_STATUS events
4254 * struct rx_from_unknown - Data for EVENT_RX_FROM_UNKNOWN events
4256 struct rx_from_unknown {
4263 * struct rx_mgmt - Data for EVENT_RX_MGMT events
4271 * drv_priv - Pointer to store driver private BSS information
4273 * If not set to NULL, this is used for comparison with
4274 * hostapd_data->drv_priv to determine which BSS should process
4280 * freq - Frequency (in MHz) on which the frame was received
4285 * ssi_signal - Signal strength in dBm (or 0 if not available)
4291 * struct remain_on_channel - Data for EVENT_REMAIN_ON_CHANNEL events
4293 * This is also used with EVENT_CANCEL_REMAIN_ON_CHANNEL events.
4295 struct remain_on_channel {
4297 * freq - Channel frequency in MHz
4302 * duration - Duration to remain on the channel in milliseconds
4304 unsigned int duration;
4305 } remain_on_channel;
4308 * struct scan_info - Optional data for EVENT_SCAN_RESULTS events
4309 * @aborted: Whether the scan was aborted
4310 * @freqs: Scanned frequencies in MHz (%NULL = all channels scanned)
4311 * @num_freqs: Number of entries in freqs array
4312 * @ssids: Scanned SSIDs (%NULL or zero-length SSID indicates wildcard
4314 * @num_ssids: Number of entries in ssids array
4320 struct wpa_driver_scan_ssid ssids[WPAS_MAX_SCAN_SSIDS];
4325 * struct rx_probe_req - Data for EVENT_RX_PROBE_REQ events
4327 struct rx_probe_req {
4329 * sa - Source address of the received Probe Request frame
4334 * da - Destination address of the received Probe Request frame
4335 * or %NULL if not available
4340 * bssid - BSSID of the received Probe Request frame or %NULL
4346 * ie - IEs from the Probe Request body
4351 * ie_len - Length of ie buffer in octets
4356 * signal - signal strength in dBm (or 0 if not available)
4362 * struct new_sta - Data for EVENT_NEW_STA events
4369 * struct eapol_rx - Data for EVENT_EAPOL_RX events
4378 * signal_change - Data for EVENT_SIGNAL_CHANGE events
4380 struct wpa_signal_info signal_change;
4383 * struct best_channel - Data for EVENT_BEST_CHANNEL events
4384 * @freq_24: Best 2.4 GHz band channel frequency in MHz
4385 * @freq_5: Best 5 GHz band channel frequency in MHz
4386 * @freq_overall: Best channel frequency in MHz
4388 * 0 can be used to indicate no preference in either band.
4390 struct best_channel {
4396 struct unprot_deauth {
4402 struct unprot_disassoc {
4409 * struct low_ack - Data for EVENT_STATION_LOW_ACK events
4410 * @addr: station address
4417 * struct ibss_peer_lost - Data for EVENT_IBSS_PEER_LOST
4419 struct ibss_peer_lost {
4424 * struct driver_gtk_rekey - Data for EVENT_DRIVER_GTK_REKEY
4426 struct driver_gtk_rekey {
4428 const u8 *replay_ctr;
4432 * struct client_poll - Data for EVENT_DRIVER_CLIENT_POLL_OK events
4433 * @addr: station address
4435 struct client_poll {
4440 * struct eapol_tx_status
4441 * @dst: Original destination
4442 * @data: Data starting with IEEE 802.1X header (!)
4443 * @data_len: Length of data
4444 * @ack: Indicates ack or lost frame
4446 * This corresponds to hapd_send_eapol if the frame sent
4447 * there isn't just reported as EVENT_TX_STATUS.
4449 struct eapol_tx_status {
4458 * @freq: Frequency of new channel in MHz
4459 * @ht_enabled: Whether this is an HT channel
4460 * @ch_offset: Secondary channel offset
4461 * @ch_width: Channel width
4462 * @cf1: Center frequency 1
4463 * @cf2: Center frequency 2
4469 enum chan_width ch_width;
4475 * struct connect_failed - Data for EVENT_CONNECT_FAILED_REASON
4476 * @addr: Remote client address
4477 * @code: Reason code for connection failure
4479 struct connect_failed_reason {
4485 } connect_failed_reason;
4488 * struct dfs_event - Data for radar detected events
4489 * @freq: Frequency of the channel in MHz
4495 enum chan_width chan_width;
4501 * survey_results - Survey result data for EVENT_SURVEY
4502 * @freq_filter: Requested frequency survey filter, 0 if request
4503 * was for all survey data
4504 * @survey_list: Linked list of survey data (struct freq_survey)
4506 struct survey_results {
4507 unsigned int freq_filter;
4508 struct dl_list survey_list; /* struct freq_survey */
4512 * channel_list_changed - Data for EVENT_CHANNEL_LIST_CHANGED
4513 * @initiator: Initiator of the regulatory change
4514 * @type: Regulatory change type
4515 * @alpha2: Country code (or "" if not available)
4517 struct channel_list_changed {
4518 enum reg_change_initiator initiator;
4521 } channel_list_changed;
4524 * freq_range - List of frequency ranges
4526 * This is used as the data with EVENT_AVOID_FREQUENCIES.
4528 struct wpa_freq_range_list freq_range;
4533 * @peer: Peer address
4535 * @ie_len: Length of @ies
4537 * Notification of new candidate mesh peer.
4546 * struct acs_selected_channels - Data for EVENT_ACS_CHANNEL_SELECTED
4547 * @pri_channel: Selected primary channel
4548 * @sec_channel: Selected secondary channel
4550 struct acs_selected_channels {
4553 } acs_selected_channels;
4557 * wpa_supplicant_event - Report a driver event for wpa_supplicant
4558 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
4559 * with struct wpa_driver_ops::init()
4560 * @event: event type (defined above)
4561 * @data: possible extra data for the event
4563 * Driver wrapper code should call this function whenever an event is received
4566 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4567 union wpa_event_data *data);
4571 * The following inline functions are provided for convenience to simplify
4572 * event indication for some of the common events.
4575 static inline void drv_event_assoc(void *ctx, const u8 *addr, const u8 *ie,
4576 size_t ielen, int reassoc)
4578 union wpa_event_data event;
4579 os_memset(&event, 0, sizeof(event));
4580 event.assoc_info.reassoc = reassoc;
4581 event.assoc_info.req_ies = ie;
4582 event.assoc_info.req_ies_len = ielen;
4583 event.assoc_info.addr = addr;
4584 wpa_supplicant_event(ctx, EVENT_ASSOC, &event);
4587 static inline void drv_event_disassoc(void *ctx, const u8 *addr)
4589 union wpa_event_data event;
4590 os_memset(&event, 0, sizeof(event));
4591 event.disassoc_info.addr = addr;
4592 wpa_supplicant_event(ctx, EVENT_DISASSOC, &event);
4595 static inline void drv_event_eapol_rx(void *ctx, const u8 *src, const u8 *data,
4598 union wpa_event_data event;
4599 os_memset(&event, 0, sizeof(event));
4600 event.eapol_rx.src = src;
4601 event.eapol_rx.data = data;
4602 event.eapol_rx.data_len = data_len;
4603 wpa_supplicant_event(ctx, EVENT_EAPOL_RX, &event);
4606 /* driver_common.c */
4607 void wpa_scan_results_free(struct wpa_scan_results *res);
4609 /* Convert wpa_event_type to a string for logging */
4610 const char * event_to_string(enum wpa_event_type event);
4612 /* Convert chan_width to a string for logging and control interfaces */
4613 const char * channel_width_to_string(enum chan_width width);
4615 int ht_supported(const struct hostapd_hw_modes *mode);
4616 int vht_supported(const struct hostapd_hw_modes *mode);
4618 struct wowlan_triggers *
4619 wpa_get_wowlan_triggers(const char *wowlan_triggers,
4620 const struct wpa_driver_capa *capa);
4622 /* NULL terminated array of linked in driver wrappers */
4623 extern struct wpa_driver_ops *wpa_drivers[];
4625 #endif /* DRIVER_H */