/* * Driver interface definition * Copyright (c) 2003-2014, Jouni Malinen * * This software may be distributed under the terms of the BSD license. * See README for more details. * * This file defines a driver interface used by both %wpa_supplicant and * hostapd. The first part of the file defines data structures used in various * driver operations. This is followed by the struct wpa_driver_ops that each * driver wrapper will beed to define with callback functions for requesting * driver operations. After this, there are definitions for driver event * reporting with wpa_supplicant_event() and some convenience helper functions * that can be used to report events. */ #ifndef DRIVER_H #define DRIVER_H #define WPA_SUPPLICANT_DRIVER_VERSION 4 #include "common/defs.h" #include "utils/list.h" #define HOSTAPD_CHAN_DISABLED 0x00000001 #define HOSTAPD_CHAN_PASSIVE_SCAN 0x00000002 #define HOSTAPD_CHAN_NO_IBSS 0x00000004 #define HOSTAPD_CHAN_RADAR 0x00000008 #define HOSTAPD_CHAN_HT40PLUS 0x00000010 #define HOSTAPD_CHAN_HT40MINUS 0x00000020 #define HOSTAPD_CHAN_HT40 0x00000040 #define HOSTAPD_CHAN_SURVEY_LIST_INITIALIZED 0x00000080 #define HOSTAPD_CHAN_DFS_UNKNOWN 0x00000000 #define HOSTAPD_CHAN_DFS_USABLE 0x00000100 #define HOSTAPD_CHAN_DFS_UNAVAILABLE 0x00000200 #define HOSTAPD_CHAN_DFS_AVAILABLE 0x00000300 #define HOSTAPD_CHAN_DFS_MASK 0x00000300 #define HOSTAPD_CHAN_VHT_10_70 0x00000800 #define HOSTAPD_CHAN_VHT_30_50 0x00001000 #define HOSTAPD_CHAN_VHT_50_30 0x00002000 #define HOSTAPD_CHAN_VHT_70_10 0x00004000 enum reg_change_initiator { REGDOM_SET_BY_CORE, REGDOM_SET_BY_USER, REGDOM_SET_BY_DRIVER, REGDOM_SET_BY_COUNTRY_IE, REGDOM_BEACON_HINT, }; /** * struct hostapd_channel_data - Channel information */ struct hostapd_channel_data { /** * chan - Channel number (IEEE 802.11) */ short chan; /** * freq - Frequency in MHz */ int freq; /** * flag - Channel flags (HOSTAPD_CHAN_*) */ int flag; /** * max_tx_power - Regulatory transmit power limit in dBm */ u8 max_tx_power; /* * survey_list - Linked list of surveys */ struct dl_list survey_list; /** * min_nf - Minimum observed noise floor, in dBm, based on all * surveyed channel data */ s8 min_nf; #ifdef CONFIG_ACS /** * interference_factor - Computed interference factor on this * channel (used internally in src/ap/acs.c; driver wrappers do not * need to set this) */ long double interference_factor; #endif /* CONFIG_ACS */ }; #define HOSTAPD_MODE_FLAG_HT_INFO_KNOWN BIT(0) #define HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN BIT(1) /** * struct hostapd_hw_modes - Supported hardware mode information */ struct hostapd_hw_modes { /** * mode - Hardware mode */ enum hostapd_hw_mode mode; /** * num_channels - Number of entries in the channels array */ int num_channels; /** * channels - Array of supported channels */ struct hostapd_channel_data *channels; /** * num_rates - Number of entries in the rates array */ int num_rates; /** * rates - Array of supported rates in 100 kbps units */ int *rates; /** * ht_capab - HT (IEEE 802.11n) capabilities */ u16 ht_capab; /** * mcs_set - MCS (IEEE 802.11n) rate parameters */ u8 mcs_set[16]; /** * a_mpdu_params - A-MPDU (IEEE 802.11n) parameters */ u8 a_mpdu_params; /** * vht_capab - VHT (IEEE 802.11ac) capabilities */ u32 vht_capab; /** * vht_mcs_set - VHT MCS (IEEE 802.11ac) rate parameters */ u8 vht_mcs_set[8]; unsigned int flags; /* HOSTAPD_MODE_FLAG_* */ }; #define IEEE80211_MODE_INFRA 0 #define IEEE80211_MODE_IBSS 1 #define IEEE80211_MODE_AP 2 #define IEEE80211_CAP_ESS 0x0001 #define IEEE80211_CAP_IBSS 0x0002 #define IEEE80211_CAP_PRIVACY 0x0010 /* DMG (60 GHz) IEEE 802.11ad */ /* type - bits 0..1 */ #define IEEE80211_CAP_DMG_MASK 0x0003 #define IEEE80211_CAP_DMG_IBSS 0x0001 /* Tx by: STA */ #define IEEE80211_CAP_DMG_PBSS 0x0002 /* Tx by: PCP */ #define IEEE80211_CAP_DMG_AP 0x0003 /* Tx by: AP */ #define WPA_SCAN_QUAL_INVALID BIT(0) #define WPA_SCAN_NOISE_INVALID BIT(1) #define WPA_SCAN_LEVEL_INVALID BIT(2) #define WPA_SCAN_LEVEL_DBM BIT(3) #define WPA_SCAN_AUTHENTICATED BIT(4) #define WPA_SCAN_ASSOCIATED BIT(5) /** * struct wpa_scan_res - Scan result for an BSS/IBSS * @flags: information flags about the BSS/IBSS (WPA_SCAN_*) * @bssid: BSSID * @freq: frequency of the channel in MHz (e.g., 2412 = channel 1) * @beacon_int: beacon interval in TUs (host byte order) * @caps: capability information field in host byte order * @qual: signal quality * @noise: noise level * @level: signal level * @tsf: Timestamp * @age: Age of the information in milliseconds (i.e., how many milliseconds * ago the last Beacon or Probe Response frame was received) * @ie_len: length of the following IE field in octets * @beacon_ie_len: length of the following Beacon IE field in octets * * This structure is used as a generic format for scan results from the * driver. Each driver interface implementation is responsible for converting * the driver or OS specific scan results into this format. * * If the driver does not support reporting all IEs, the IE data structure is * constructed of the IEs that are available. This field will also need to * include SSID in IE format. All drivers are encouraged to be extended to * report all IEs to make it easier to support future additions. */ struct wpa_scan_res { unsigned int flags; u8 bssid[ETH_ALEN]; int freq; u16 beacon_int; u16 caps; int qual; int noise; int level; u64 tsf; unsigned int age; size_t ie_len; size_t beacon_ie_len; /* * Followed by ie_len octets of IEs from Probe Response frame (or if * the driver does not indicate source of IEs, these may also be from * Beacon frame). After the first set of IEs, another set of IEs may * follow (with beacon_ie_len octets of data) if the driver provides * both IE sets. */ }; /** * struct wpa_scan_results - Scan results * @res: Array of pointers to allocated variable length scan result entries * @num: Number of entries in the scan result array * @fetch_time: Time when the results were fetched from the driver */ struct wpa_scan_results { struct wpa_scan_res **res; size_t num; struct os_reltime fetch_time; }; /** * struct wpa_interface_info - Network interface information * @next: Pointer to the next interface or NULL if this is the last one * @ifname: Interface name that can be used with init() or init2() * @desc: Human readable adapter description (e.g., vendor/model) or NULL if * not available * @drv_name: struct wpa_driver_ops::name (note: unlike other strings, this one * is not an allocated copy, i.e., get_interfaces() caller will not free * this) */ struct wpa_interface_info { struct wpa_interface_info *next; char *ifname; char *desc; const char *drv_name; }; #define WPAS_MAX_SCAN_SSIDS 16 /** * struct wpa_driver_scan_params - Scan parameters * Data for struct wpa_driver_ops::scan2(). */ struct wpa_driver_scan_params { /** * ssids - SSIDs to scan for */ struct wpa_driver_scan_ssid { /** * ssid - specific SSID to scan for (ProbeReq) * %NULL or zero-length SSID is used to indicate active scan * with wildcard SSID. */ const u8 *ssid; /** * ssid_len: Length of the SSID in octets */ size_t ssid_len; } ssids[WPAS_MAX_SCAN_SSIDS]; /** * num_ssids - Number of entries in ssids array * Zero indicates a request for a passive scan. */ size_t num_ssids; /** * extra_ies - Extra IE(s) to add into Probe Request or %NULL */ const u8 *extra_ies; /** * extra_ies_len - Length of extra_ies in octets */ size_t extra_ies_len; /** * freqs - Array of frequencies to scan or %NULL for all frequencies * * The frequency is set in MHz. The array is zero-terminated. */ int *freqs; /** * filter_ssids - Filter for reporting SSIDs * * This optional parameter can be used to request the driver wrapper to * filter scan results to include only the specified SSIDs. %NULL * indicates that no filtering is to be done. This can be used to * reduce memory needs for scan results in environments that have large * number of APs with different SSIDs. * * The driver wrapper is allowed to take this allocated buffer into its * own use by setting the pointer to %NULL. In that case, the driver * wrapper is responsible for freeing the buffer with os_free() once it * is not needed anymore. */ struct wpa_driver_scan_filter { u8 ssid[32]; size_t ssid_len; } *filter_ssids; /** * num_filter_ssids - Number of entries in filter_ssids array */ size_t num_filter_ssids; /** * filter_rssi - Filter by RSSI * * The driver may filter scan results in firmware to reduce host * wakeups and thereby save power. Specify the RSSI threshold in s32 * dBm. */ s32 filter_rssi; /** * p2p_probe - Used to disable CCK (802.11b) rates for P2P probes * * When set, the driver is expected to remove rates 1, 2, 5.5, and 11 * Mbps from the support rates element(s) in the Probe Request frames * and not to transmit the frames at any of those rates. */ u8 p2p_probe; /** * only_new_results - Request driver to report only new results * * This is used to request the driver to report only BSSes that have * been detected after this scan request has been started, i.e., to * flush old cached BSS entries. */ int only_new_results; /* * NOTE: Whenever adding new parameters here, please make sure * wpa_scan_clone_params() and wpa_scan_free_params() get updated with * matching changes. */ }; /** * struct wpa_driver_auth_params - Authentication parameters * Data for struct wpa_driver_ops::authenticate(). */ struct wpa_driver_auth_params { int freq; const u8 *bssid; const u8 *ssid; size_t ssid_len; int auth_alg; const u8 *ie; size_t ie_len; const u8 *wep_key[4]; size_t wep_key_len[4]; int wep_tx_keyidx; int local_state_change; /** * p2p - Whether this connection is a P2P group */ int p2p; const u8 *sae_data; size_t sae_data_len; }; enum wps_mode { WPS_MODE_NONE /* no WPS provisioning being used */, WPS_MODE_OPEN /* WPS provisioning with AP that is in open mode */, WPS_MODE_PRIVACY /* WPS provisioning with AP that is using protection */ }; /** * struct wpa_driver_associate_params - Association parameters * Data for struct wpa_driver_ops::associate(). */ struct wpa_driver_associate_params { /** * bssid - BSSID of the selected AP * This can be %NULL, if ap_scan=2 mode is used and the driver is * responsible for selecting with which BSS to associate. */ const u8 *bssid; /** * bssid_hint - BSSID of a proposed AP * * This indicates which BSS has been found a suitable candidate for * initial association for drivers that use driver/firmwate-based BSS * selection. Unlike the @bssid parameter, @bssid_hint does not limit * the driver from selecting other BSSes in the ESS. */ const u8 *bssid_hint; /** * ssid - The selected SSID */ const u8 *ssid; /** * ssid_len - Length of the SSID (1..32) */ size_t ssid_len; /** * freq - Frequency of the channel the selected AP is using * Frequency that the selected AP is using (in MHz as * reported in the scan results) */ int freq; /** * freq_hint - Frequency of the channel the proposed AP is using * * This provides a channel on which a suitable BSS has been found as a * hint for the driver. Unlike the @freq parameter, @freq_hint does not * limit the driver from selecting other channels for * driver/firmware-based BSS selection. */ int freq_hint; /** * bg_scan_period - Background scan period in seconds, 0 to disable * background scan, or -1 to indicate no change to default driver * configuration */ int bg_scan_period; /** * wpa_ie - WPA information element for (Re)Association Request * WPA information element to be included in (Re)Association * Request (including information element id and length). Use * of this WPA IE is optional. If the driver generates the WPA * IE, it can use pairwise_suite, group_suite, and * key_mgmt_suite to select proper algorithms. In this case, * the driver has to notify wpa_supplicant about the used WPA * IE by generating an event that the interface code will * convert into EVENT_ASSOCINFO data (see below). * * When using WPA2/IEEE 802.11i, wpa_ie is used for RSN IE * instead. The driver can determine which version is used by * looking at the first byte of the IE (0xdd for WPA, 0x30 for * WPA2/RSN). * * When using WPS, wpa_ie is used for WPS IE instead of WPA/RSN IE. */ const u8 *wpa_ie; /** * wpa_ie_len - length of the wpa_ie */ size_t wpa_ie_len; /** * wpa_proto - Bitfield of WPA_PROTO_* values to indicate WPA/WPA2 */ unsigned int wpa_proto; /** * pairwise_suite - Selected pairwise cipher suite (WPA_CIPHER_*) * * This is usually ignored if @wpa_ie is used. */ unsigned int pairwise_suite; /** * group_suite - Selected group cipher suite (WPA_CIPHER_*) * * This is usually ignored if @wpa_ie is used. */ unsigned int group_suite; /** * key_mgmt_suite - Selected key management suite (WPA_KEY_MGMT_*) * * This is usually ignored if @wpa_ie is used. */ unsigned int key_mgmt_suite; /** * auth_alg - Allowed authentication algorithms * Bit field of WPA_AUTH_ALG_* */ int auth_alg; /** * mode - Operation mode (infra/ibss) IEEE80211_MODE_* */ int mode; /** * wep_key - WEP keys for static WEP configuration */ const u8 *wep_key[4]; /** * wep_key_len - WEP key length for static WEP configuration */ size_t wep_key_len[4]; /** * wep_tx_keyidx - WEP TX key index for static WEP configuration */ int wep_tx_keyidx; /** * mgmt_frame_protection - IEEE 802.11w management frame protection */ enum mfp_options mgmt_frame_protection; /** * ft_ies - IEEE 802.11r / FT information elements * If the supplicant is using IEEE 802.11r (FT) and has the needed keys * for fast transition, this parameter is set to include the IEs that * are to be sent in the next FT Authentication Request message. * update_ft_ies() handler is called to update the IEs for further * FT messages in the sequence. * * The driver should use these IEs only if the target AP is advertising * the same mobility domain as the one included in the MDIE here. * * In ap_scan=2 mode, the driver can use these IEs when moving to a new * AP after the initial association. These IEs can only be used if the * target AP is advertising support for FT and is using the same MDIE * and SSID as the current AP. * * The driver is responsible for reporting the FT IEs received from the * AP's response using wpa_supplicant_event() with EVENT_FT_RESPONSE * type. update_ft_ies() handler will then be called with the FT IEs to * include in the next frame in the authentication sequence. */ const u8 *ft_ies; /** * ft_ies_len - Length of ft_ies in bytes */ size_t ft_ies_len; /** * ft_md - FT Mobility domain (6 octets) (also included inside ft_ies) * * This value is provided to allow the driver interface easier access * to the current mobility domain. This value is set to %NULL if no * mobility domain is currently active. */ const u8 *ft_md; /** * passphrase - RSN passphrase for PSK * * This value is made available only for WPA/WPA2-Personal (PSK) and * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is * the 8..63 character ASCII passphrase, if available. Please note that * this can be %NULL if passphrase was not used to generate the PSK. In * that case, the psk field must be used to fetch the PSK. */ const char *passphrase; /** * psk - RSN PSK (alternative for passphrase for PSK) * * This value is made available only for WPA/WPA2-Personal (PSK) and * only for drivers that set WPA_DRIVER_FLAGS_4WAY_HANDSHAKE. This is * the 32-octet (256-bit) PSK, if available. The driver wrapper should * be prepared to handle %NULL value as an error. */ const u8 *psk; /** * drop_unencrypted - Enable/disable unencrypted frame filtering * * Configure the driver to drop all non-EAPOL frames (both receive and * transmit paths). Unencrypted EAPOL frames (ethertype 0x888e) must * still be allowed for key negotiation. */ int drop_unencrypted; /** * prev_bssid - Previously used BSSID in this ESS * * When not %NULL, this is a request to use reassociation instead of * association. */ const u8 *prev_bssid; /** * wps - WPS mode * * If the driver needs to do special configuration for WPS association, * this variable provides more information on what type of association * is being requested. Most drivers should not need ot use this. */ enum wps_mode wps; /** * p2p - Whether this connection is a P2P group */ int p2p; /** * uapsd - UAPSD parameters for the network * -1 = do not change defaults * AP mode: 1 = enabled, 0 = disabled * STA mode: bits 0..3 UAPSD enabled for VO,VI,BK,BE */ int uapsd; /** * fixed_bssid - Whether to force this BSSID in IBSS mode * 1 = Fix this BSSID and prevent merges. * 0 = Do not fix BSSID. */ int fixed_bssid; /** * disable_ht - Disable HT (IEEE 802.11n) for this connection */ int disable_ht; /** * HT Capabilities over-rides. Only bits set in the mask will be used, * and not all values are used by the kernel anyway. Currently, MCS, * MPDU and MSDU fields are used. */ const u8 *htcaps; /* struct ieee80211_ht_capabilities * */ const u8 *htcaps_mask; /* struct ieee80211_ht_capabilities * */ #ifdef CONFIG_VHT_OVERRIDES /** * disable_vht - Disable VHT for this connection */ int disable_vht; /** * VHT capability overrides. */ const struct ieee80211_vht_capabilities *vhtcaps; const struct ieee80211_vht_capabilities *vhtcaps_mask; #endif /* CONFIG_VHT_OVERRIDES */ }; enum hide_ssid { NO_SSID_HIDING, HIDDEN_SSID_ZERO_LEN, HIDDEN_SSID_ZERO_CONTENTS }; struct wpa_driver_ap_params { /** * head - Beacon head from IEEE 802.11 header to IEs before TIM IE */ u8 *head; /** * head_len - Length of the head buffer in octets */ size_t head_len; /** * tail - Beacon tail following TIM IE */ u8 *tail; /** * tail_len - Length of the tail buffer in octets */ size_t tail_len; /** * dtim_period - DTIM period */ int dtim_period; /** * beacon_int - Beacon interval */ int beacon_int; /** * basic_rates: -1 terminated array of basic rates in 100 kbps * * This parameter can be used to set a specific basic rate set for the * BSS. If %NULL, default basic rate set is used. */ int *basic_rates; /** * proberesp - Probe Response template * * This is used by drivers that reply to Probe Requests internally in * AP mode and require the full Probe Response template. */ u8 *proberesp; /** * proberesp_len - Length of the proberesp buffer in octets */ size_t proberesp_len; /** * ssid - The SSID to use in Beacon/Probe Response frames */ const u8 *ssid; /** * ssid_len - Length of the SSID (1..32) */ size_t ssid_len; /** * hide_ssid - Whether to hide the SSID */ enum hide_ssid hide_ssid; /** * pairwise_ciphers - WPA_CIPHER_* bitfield */ unsigned int pairwise_ciphers; /** * group_cipher - WPA_CIPHER_* */ unsigned int group_cipher; /** * key_mgmt_suites - WPA_KEY_MGMT_* bitfield */ unsigned int key_mgmt_suites; /** * auth_algs - WPA_AUTH_ALG_* bitfield */ unsigned int auth_algs; /** * wpa_version - WPA_PROTO_* bitfield */ unsigned int wpa_version; /** * privacy - Whether privacy is used in the BSS */ int privacy; /** * beacon_ies - WPS/P2P IE(s) for Beacon frames * * This is used to add IEs like WPS IE and P2P IE by drivers that do * not use the full Beacon template. */ const struct wpabuf *beacon_ies; /** * proberesp_ies - P2P/WPS IE(s) for Probe Response frames * * This is used to add IEs like WPS IE and P2P IE by drivers that * reply to Probe Request frames internally. */ const struct wpabuf *proberesp_ies; /** * assocresp_ies - WPS IE(s) for (Re)Association Response frames * * This is used to add IEs like WPS IE by drivers that reply to * (Re)Association Request frames internally. */ const struct wpabuf *assocresp_ies; /** * isolate - Whether to isolate frames between associated stations * * If this is non-zero, the AP is requested to disable forwarding of * frames between associated stations. */ int isolate; /** * cts_protect - Whether CTS protection is enabled */ int cts_protect; /** * preamble - Whether short preamble is enabled */ int preamble; /** * short_slot_time - Whether short slot time is enabled * * 0 = short slot time disable, 1 = short slot time enabled, -1 = do * not set (e.g., when 802.11g mode is not in use) */ int short_slot_time; /** * ht_opmode - HT operation mode or -1 if HT not in use */ int ht_opmode; /** * interworking - Whether Interworking is enabled */ int interworking; /** * hessid - Homogeneous ESS identifier or %NULL if not set */ const u8 *hessid; /** * access_network_type - Access Network Type (0..15) * * This is used for filtering Probe Request frames when Interworking is * enabled. */ u8 access_network_type; /** * ap_max_inactivity - Timeout in seconds to detect STA's inactivity * * This is used by driver which advertises this capability. */ int ap_max_inactivity; /** * disable_dgaf - Whether group-addressed frames are disabled */ int disable_dgaf; }; /** * struct wpa_driver_capa - Driver capability information */ struct wpa_driver_capa { #define WPA_DRIVER_CAPA_KEY_MGMT_WPA 0x00000001 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2 0x00000002 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK 0x00000004 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK 0x00000008 #define WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE 0x00000010 #define WPA_DRIVER_CAPA_KEY_MGMT_FT 0x00000020 #define WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK 0x00000040 #define WPA_DRIVER_CAPA_KEY_MGMT_WAPI_PSK 0x00000080 unsigned int key_mgmt; #define WPA_DRIVER_CAPA_ENC_WEP40 0x00000001 #define WPA_DRIVER_CAPA_ENC_WEP104 0x00000002 #define WPA_DRIVER_CAPA_ENC_TKIP 0x00000004 #define WPA_DRIVER_CAPA_ENC_CCMP 0x00000008 #define WPA_DRIVER_CAPA_ENC_WEP128 0x00000010 #define WPA_DRIVER_CAPA_ENC_GCMP 0x00000020 #define WPA_DRIVER_CAPA_ENC_GCMP_256 0x00000040 #define WPA_DRIVER_CAPA_ENC_CCMP_256 0x00000080 #define WPA_DRIVER_CAPA_ENC_BIP 0x00000100 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_128 0x00000200 #define WPA_DRIVER_CAPA_ENC_BIP_GMAC_256 0x00000400 #define WPA_DRIVER_CAPA_ENC_BIP_CMAC_256 0x00000800 unsigned int enc; #define WPA_DRIVER_AUTH_OPEN 0x00000001 #define WPA_DRIVER_AUTH_SHARED 0x00000002 #define WPA_DRIVER_AUTH_LEAP 0x00000004 unsigned int auth; /* Driver generated WPA/RSN IE */ #define WPA_DRIVER_FLAGS_DRIVER_IE 0x00000001 /* Driver needs static WEP key setup after association command */ #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC 0x00000002 /* unused: 0x00000004 */ /* Driver takes care of RSN 4-way handshake internally; PMK is configured with * struct wpa_driver_ops::set_key using alg = WPA_ALG_PMK */ #define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE 0x00000008 #define WPA_DRIVER_FLAGS_WIRED 0x00000010 /* Driver provides separate commands for authentication and association (SME in * wpa_supplicant). */ #define WPA_DRIVER_FLAGS_SME 0x00000020 /* Driver supports AP mode */ #define WPA_DRIVER_FLAGS_AP 0x00000040 /* Driver needs static WEP key setup after association has been completed */ #define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE 0x00000080 /* unused: 0x00000100 */ /* Driver supports concurrent P2P operations */ #define WPA_DRIVER_FLAGS_P2P_CONCURRENT 0x00000200 /* * Driver uses the initial interface as a dedicated management interface, i.e., * it cannot be used for P2P group operations or non-P2P purposes. */ #define WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE 0x00000400 /* This interface is P2P capable (P2P GO or P2P Client) */ #define WPA_DRIVER_FLAGS_P2P_CAPABLE 0x00000800 /* unused: 0x00001000 */ /* * Driver uses the initial interface for P2P management interface and non-P2P * purposes (e.g., connect to infra AP), but this interface cannot be used for * P2P group operations. */ #define WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P 0x00002000 /* * Driver is known to use sane error codes, i.e., when it indicates that * something (e.g., association) fails, there was indeed a failure and the * operation does not end up getting completed successfully later. */ #define WPA_DRIVER_FLAGS_SANE_ERROR_CODES 0x00004000 /* Driver supports off-channel TX */ #define WPA_DRIVER_FLAGS_OFFCHANNEL_TX 0x00008000 /* Driver indicates TX status events for EAPOL Data frames */ #define WPA_DRIVER_FLAGS_EAPOL_TX_STATUS 0x00010000 /* Driver indicates TX status events for Deauth/Disassoc frames */ #define WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS 0x00020000 /* Driver supports roaming (BSS selection) in firmware */ #define WPA_DRIVER_FLAGS_BSS_SELECTION 0x00040000 /* Driver supports operating as a TDLS peer */ #define WPA_DRIVER_FLAGS_TDLS_SUPPORT 0x00080000 /* Driver requires external TDLS setup/teardown/discovery */ #define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000 /* Driver indicates support for Probe Response offloading in AP mode */ #define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000 /* Driver supports U-APSD in AP mode */ #define WPA_DRIVER_FLAGS_AP_UAPSD 0x00400000 /* Driver supports inactivity timer in AP mode */ #define WPA_DRIVER_FLAGS_INACTIVITY_TIMER 0x00800000 /* Driver expects user space implementation of MLME in AP mode */ #define WPA_DRIVER_FLAGS_AP_MLME 0x01000000 /* Driver supports SAE with user space SME */ #define WPA_DRIVER_FLAGS_SAE 0x02000000 /* Driver makes use of OBSS scan mechanism in wpa_supplicant */ #define WPA_DRIVER_FLAGS_OBSS_SCAN 0x04000000 /* Driver supports IBSS (Ad-hoc) mode */ #define WPA_DRIVER_FLAGS_IBSS 0x08000000 /* Driver supports radar detection */ #define WPA_DRIVER_FLAGS_RADAR 0x10000000 /* Driver supports a dedicated interface for P2P Device */ #define WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE 0x20000000 /* Driver supports QoS Mapping */ #define WPA_DRIVER_FLAGS_QOS_MAPPING 0x40000000 /* Driver supports CSA in AP mode */ #define WPA_DRIVER_FLAGS_AP_CSA 0x80000000 unsigned int flags; int max_scan_ssids; int max_sched_scan_ssids; int sched_scan_supported; int max_match_sets; /** * max_remain_on_chan - Maximum remain-on-channel duration in msec */ unsigned int max_remain_on_chan; /** * max_stations - Maximum number of associated stations the driver * supports in AP mode */ unsigned int max_stations; /** * probe_resp_offloads - Bitmap of supported protocols by the driver * for Probe Response offloading. */ /* Driver Probe Response offloading support for WPS ver. 1 */ #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS 0x00000001 /* Driver Probe Response offloading support for WPS ver. 2 */ #define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2 0x00000002 /* Driver Probe Response offloading support for P2P */ #define WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P 0x00000004 /* Driver Probe Response offloading support for IEEE 802.11u (Interworking) */ #define WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING 0x00000008 unsigned int probe_resp_offloads; unsigned int max_acl_mac_addrs; /** * Number of supported concurrent channels */ unsigned int num_multichan_concurrent; /** * extended_capa - extended capabilities in driver/device * * Must be allocated and freed by driver and the pointers must be * valid for the lifetime of the driver, i.e., freed in deinit() */ const u8 *extended_capa, *extended_capa_mask; unsigned int extended_capa_len; }; struct hostapd_data; struct hostap_sta_driver_data { unsigned long rx_packets, tx_packets, rx_bytes, tx_bytes; unsigned long current_tx_rate; unsigned long inactive_msec; unsigned long flags; unsigned long num_ps_buf_frames; unsigned long tx_retry_failed; unsigned long tx_retry_count; int last_rssi; int last_ack_rssi; }; struct hostapd_sta_add_params { const u8 *addr; u16 aid; u16 capability; const u8 *supp_rates; size_t supp_rates_len; u16 listen_interval; const struct ieee80211_ht_capabilities *ht_capabilities; const struct ieee80211_vht_capabilities *vht_capabilities; int vht_opmode_enabled; u8 vht_opmode; u32 flags; /* bitmask of WPA_STA_* flags */ int set; /* Set STA parameters instead of add */ u8 qosinfo; const u8 *ext_capab; size_t ext_capab_len; const u8 *supp_channels; size_t supp_channels_len; const u8 *supp_oper_classes; size_t supp_oper_classes_len; }; struct hostapd_freq_params { int mode; int freq; int channel; /* for HT */ int ht_enabled; int sec_channel_offset; /* 0 = HT40 disabled, -1 = HT40 enabled, * secondary channel below primary, 1 = HT40 * enabled, secondary channel above primary */ /* for VHT */ int vht_enabled; /* valid for both HT and VHT, center_freq2 is non-zero * only for bandwidth 80 and an 80+80 channel */ int center_freq1, center_freq2; int bandwidth; }; struct mac_address { u8 addr[ETH_ALEN]; }; struct hostapd_acl_params { u8 acl_policy; unsigned int num_mac_acl; struct mac_address mac_acl[0]; }; enum wpa_driver_if_type { /** * WPA_IF_STATION - Station mode interface */ WPA_IF_STATION, /** * WPA_IF_AP_VLAN - AP mode VLAN interface * * This interface shares its address and Beacon frame with the main * BSS. */ WPA_IF_AP_VLAN, /** * WPA_IF_AP_BSS - AP mode BSS interface * * This interface has its own address and Beacon frame. */ WPA_IF_AP_BSS, /** * WPA_IF_P2P_GO - P2P Group Owner */ WPA_IF_P2P_GO, /** * WPA_IF_P2P_CLIENT - P2P Client */ WPA_IF_P2P_CLIENT, /** * WPA_IF_P2P_GROUP - P2P Group interface (will become either * WPA_IF_P2P_GO or WPA_IF_P2P_CLIENT, but the role is not yet known) */ WPA_IF_P2P_GROUP, /** * WPA_IF_P2P_DEVICE - P2P Device interface is used to indentify the * abstracted P2P Device function in the driver */ WPA_IF_P2P_DEVICE }; struct wpa_init_params { void *global_priv; const u8 *bssid; const char *ifname; const u8 *ssid; size_t ssid_len; const char *test_socket; int use_pae_group_addr; char **bridge; size_t num_bridge; u8 *own_addr; /* buffer for writing own MAC address */ }; struct wpa_bss_params { /** Interface name (for multi-SSID/VLAN support) */ const char *ifname; /** Whether IEEE 802.1X or WPA/WPA2 is enabled */ int enabled; int wpa; int ieee802_1x; int wpa_group; int wpa_pairwise; int wpa_key_mgmt; int rsn_preauth; enum mfp_options ieee80211w; }; #define WPA_STA_AUTHORIZED BIT(0) #define WPA_STA_WMM BIT(1) #define WPA_STA_SHORT_PREAMBLE BIT(2) #define WPA_STA_MFP BIT(3) #define WPA_STA_TDLS_PEER BIT(4) enum tdls_oper { TDLS_DISCOVERY_REQ, TDLS_SETUP, TDLS_TEARDOWN, TDLS_ENABLE_LINK, TDLS_DISABLE_LINK, TDLS_ENABLE, TDLS_DISABLE }; enum wnm_oper { WNM_SLEEP_ENTER_CONFIRM, WNM_SLEEP_ENTER_FAIL, WNM_SLEEP_EXIT_CONFIRM, WNM_SLEEP_EXIT_FAIL, WNM_SLEEP_TFS_REQ_IE_ADD, /* STA requests driver to add TFS req IE */ WNM_SLEEP_TFS_REQ_IE_NONE, /* STA requests empty TFS req IE */ WNM_SLEEP_TFS_REQ_IE_SET, /* AP requests driver to set TFS req IE for * a STA */ WNM_SLEEP_TFS_RESP_IE_ADD, /* AP requests driver to add TFS resp IE * for a STA */ WNM_SLEEP_TFS_RESP_IE_NONE, /* AP requests empty TFS resp IE */ WNM_SLEEP_TFS_RESP_IE_SET, /* AP requests driver to set TFS resp IE * for a STA */ WNM_SLEEP_TFS_IE_DEL /* AP delete the TFS IE */ }; /* enum chan_width - Channel width definitions */ enum chan_width { CHAN_WIDTH_20_NOHT, CHAN_WIDTH_20, CHAN_WIDTH_40, CHAN_WIDTH_80, CHAN_WIDTH_80P80, CHAN_WIDTH_160, CHAN_WIDTH_UNKNOWN }; /** * struct wpa_signal_info - Information about channel signal quality */ struct wpa_signal_info { u32 frequency; int above_threshold; int current_signal; int avg_signal; int current_noise; int current_txrate; enum chan_width chanwidth; int center_frq1; int center_frq2; }; /** * struct beacon_data - Beacon data * @head: Head portion of Beacon frame (before TIM IE) * @tail: Tail portion of Beacon frame (after TIM IE) * @beacon_ies: Extra information element(s) to add into Beacon frames or %NULL * @proberesp_ies: Extra information element(s) to add into Probe Response * frames or %NULL * @assocresp_ies: Extra information element(s) to add into (Re)Association * Response frames or %NULL * @probe_resp: Probe Response frame template * @head_len: Length of @head * @tail_len: Length of @tail * @beacon_ies_len: Length of beacon_ies in octets * @proberesp_ies_len: Length of proberesp_ies in octets * @proberesp_ies_len: Length of proberesp_ies in octets * @probe_resp_len: Length of probe response template (@probe_resp) */ struct beacon_data { u8 *head, *tail; u8 *beacon_ies; u8 *proberesp_ies; u8 *assocresp_ies; u8 *probe_resp; size_t head_len, tail_len; size_t beacon_ies_len; size_t proberesp_ies_len; size_t assocresp_ies_len; size_t probe_resp_len; }; /** * struct csa_settings - Settings for channel switch command * @cs_count: Count in Beacon frames (TBTT) to perform the switch * @block_tx: 1 - block transmission for CSA period * @freq_params: Next channel frequency parameter * @beacon_csa: Beacon/probe resp/asooc resp info for CSA period * @beacon_after: Next beacon/probe resp/asooc resp info * @counter_offset_beacon: Offset to the count field in beacon's tail * @counter_offset_presp: Offset to the count field in probe resp. */ struct csa_settings { u8 cs_count; u8 block_tx; struct hostapd_freq_params freq_params; struct beacon_data beacon_csa; struct beacon_data beacon_after; u16 counter_offset_beacon; u16 counter_offset_presp; }; /** * struct wpa_driver_ops - Driver interface API definition * * This structure defines the API that each driver interface needs to implement * for core wpa_supplicant code. All driver specific functionality is captured * in this wrapper. */ struct wpa_driver_ops { /** Name of the driver interface */ const char *name; /** One line description of the driver interface */ const char *desc; /** * get_bssid - Get the current BSSID * @priv: private driver interface data * @bssid: buffer for BSSID (ETH_ALEN = 6 bytes) * * Returns: 0 on success, -1 on failure * * Query kernel driver for the current BSSID and copy it to bssid. * Setting bssid to 00:00:00:00:00:00 is recommended if the STA is not * associated. */ int (*get_bssid)(void *priv, u8 *bssid); /** * get_ssid - Get the current SSID * @priv: private driver interface data * @ssid: buffer for SSID (at least 32 bytes) * * Returns: Length of the SSID on success, -1 on failure * * Query kernel driver for the current SSID and copy it to ssid. * Returning zero is recommended if the STA is not associated. * * Note: SSID is an array of octets, i.e., it is not nul terminated and * can, at least in theory, contain control characters (including nul) * and as such, should be processed as binary data, not a printable * string. */ int (*get_ssid)(void *priv, u8 *ssid); /** * set_key - Configure encryption key * @ifname: Interface name (for multi-SSID/VLAN support) * @priv: private driver interface data * @alg: encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP, * %WPA_ALG_TKIP, %WPA_ALG_CCMP, %WPA_ALG_IGTK, %WPA_ALG_PMK, * %WPA_ALG_GCMP, %WPA_ALG_GCMP_256, %WPA_ALG_CCMP_256, * %WPA_ALG_BIP_GMAC_128, %WPA_ALG_BIP_GMAC_256, * %WPA_ALG_BIP_CMAC_256); * %WPA_ALG_NONE clears the key. * @addr: Address of the peer STA (BSSID of the current AP when setting * pairwise key in station mode), ff:ff:ff:ff:ff:ff for * broadcast keys, %NULL for default keys that are used both for * broadcast and unicast; when clearing keys, %NULL is used to * indicate that both the broadcast-only and default key of the * specified key index is to be cleared * @key_idx: key index (0..3), usually 0 for unicast keys; 0..4095 for * IGTK * @set_tx: configure this key as the default Tx key (only used when * driver does not support separate unicast/individual key * @seq: sequence number/packet number, seq_len octets, the next * packet number to be used for in replay protection; configured * for Rx keys (in most cases, this is only used with broadcast * keys and set to zero for unicast keys); %NULL if not set * @seq_len: length of the seq, depends on the algorithm: * TKIP: 6 octets, CCMP/GCMP: 6 octets, IGTK: 6 octets * @key: key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key, * 8-byte Rx Mic Key * @key_len: length of the key buffer in octets (WEP: 5 or 13, * TKIP: 32, CCMP/GCMP: 16, IGTK: 16) * * Returns: 0 on success, -1 on failure * * Configure the given key for the kernel driver. If the driver * supports separate individual keys (4 default keys + 1 individual), * addr can be used to determine whether the key is default or * individual. If only 4 keys are supported, the default key with key * index 0 is used as the individual key. STA must be configured to use * it as the default Tx key (set_tx is set) and accept Rx for all the * key indexes. In most cases, WPA uses only key indexes 1 and 2 for * broadcast keys, so key index 0 is available for this kind of * configuration. * * Please note that TKIP keys include separate TX and RX MIC keys and * some drivers may expect them in different order than wpa_supplicant * is using. If the TX/RX keys are swapped, all TKIP encrypted packets * will trigger Michael MIC errors. This can be fixed by changing the * order of MIC keys by swapping te bytes 16..23 and 24..31 of the key * in driver_*.c set_key() implementation, see driver_ndis.c for an * example on how this can be done. */ int (*set_key)(const char *ifname, void *priv, enum wpa_alg alg, const u8 *addr, int key_idx, int set_tx, const u8 *seq, size_t seq_len, const u8 *key, size_t key_len); /** * init - Initialize driver interface * @ctx: context to be used when calling wpa_supplicant functions, * e.g., wpa_supplicant_event() * @ifname: interface name, e.g., wlan0 * * Returns: Pointer to private data, %NULL on failure * * Initialize driver interface, including event processing for kernel * driver events (e.g., associated, scan results, Michael MIC failure). * This function can allocate a private configuration data area for * @ctx, file descriptor, interface name, etc. information that may be * needed in future driver operations. If this is not used, non-NULL * value will need to be returned because %NULL is used to indicate * failure. The returned value will be used as 'void *priv' data for * all other driver_ops functions. * * The main event loop (eloop.c) of wpa_supplicant can be used to * register callback for read sockets (eloop_register_read_sock()). * * See below for more information about events and * wpa_supplicant_event() function. */ void * (*init)(void *ctx, const char *ifname); /** * deinit - Deinitialize driver interface * @priv: private driver interface data from init() * * Shut down driver interface and processing of driver events. Free * private data buffer if one was allocated in init() handler. */ void (*deinit)(void *priv); /** * set_param - Set driver configuration parameters * @priv: private driver interface data from init() * @param: driver specific configuration parameters * * Returns: 0 on success, -1 on failure * * Optional handler for notifying driver interface about configuration * parameters (driver_param). */ int (*set_param)(void *priv, const char *param); /** * set_countermeasures - Enable/disable TKIP countermeasures * @priv: private driver interface data * @enabled: 1 = countermeasures enabled, 0 = disabled * * Returns: 0 on success, -1 on failure * * Configure TKIP countermeasures. When these are enabled, the driver * should drop all received and queued frames that are using TKIP. */ int (*set_countermeasures)(void *priv, int enabled); /** * deauthenticate - Request driver to deauthenticate * @priv: private driver interface data * @addr: peer address (BSSID of the AP) * @reason_code: 16-bit reason code to be sent in the deauthentication * frame * * Returns: 0 on success, -1 on failure */ int (*deauthenticate)(void *priv, const u8 *addr, int reason_code); /** * associate - Request driver to associate * @priv: private driver interface data * @params: association parameters * * Returns: 0 on success, -1 on failure */ int (*associate)(void *priv, struct wpa_driver_associate_params *params); /** * add_pmkid - Add PMKSA cache entry to the driver * @priv: private driver interface data * @bssid: BSSID for the PMKSA cache entry * @pmkid: PMKID for the PMKSA cache entry * * Returns: 0 on success, -1 on failure * * This function is called when a new PMK is received, as a result of * either normal authentication or RSN pre-authentication. * * If the driver generates RSN IE, i.e., it does not use wpa_ie in * associate(), add_pmkid() can be used to add new PMKSA cache entries * in the driver. If the driver uses wpa_ie from wpa_supplicant, this * driver_ops function does not need to be implemented. Likewise, if * the driver does not support WPA, this function is not needed. */ int (*add_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid); /** * remove_pmkid - Remove PMKSA cache entry to the driver * @priv: private driver interface data * @bssid: BSSID for the PMKSA cache entry * @pmkid: PMKID for the PMKSA cache entry * * Returns: 0 on success, -1 on failure * * This function is called when the supplicant drops a PMKSA cache * entry for any reason. * * If the driver generates RSN IE, i.e., it does not use wpa_ie in * associate(), remove_pmkid() can be used to synchronize PMKSA caches * between the driver and wpa_supplicant. If the driver uses wpa_ie * from wpa_supplicant, this driver_ops function does not need to be * implemented. Likewise, if the driver does not support WPA, this * function is not needed. */ int (*remove_pmkid)(void *priv, const u8 *bssid, const u8 *pmkid); /** * flush_pmkid - Flush PMKSA cache * @priv: private driver interface data * * Returns: 0 on success, -1 on failure * * This function is called when the supplicant drops all PMKSA cache * entries for any reason. * * If the driver generates RSN IE, i.e., it does not use wpa_ie in * associate(), remove_pmkid() can be used to synchronize PMKSA caches * between the driver and wpa_supplicant. If the driver uses wpa_ie * from wpa_supplicant, this driver_ops function does not need to be * implemented. Likewise, if the driver does not support WPA, this * function is not needed. */ int (*flush_pmkid)(void *priv); /** * get_capa - Get driver capabilities * @priv: private driver interface data * * Returns: 0 on success, -1 on failure * * Get driver/firmware/hardware capabilities. */ int (*get_capa)(void *priv, struct wpa_driver_capa *capa); /** * poll - Poll driver for association information * @priv: private driver interface data * * This is an option callback that can be used when the driver does not * provide event mechanism for association events. This is called when * receiving WPA EAPOL-Key messages that require association * information. The driver interface is supposed to generate associnfo * event before returning from this callback function. In addition, the * driver interface should generate an association event after having * sent out associnfo. */ void (*poll)(void *priv); /** * get_ifname - Get interface name * @priv: private driver interface data * * Returns: Pointer to the interface name. This can differ from the * interface name used in init() call. Init() is called first. * * This optional function can be used to allow the driver interface to * replace the interface name with something else, e.g., based on an * interface mapping from a more descriptive name. */ const char * (*get_ifname)(void *priv); /** * get_mac_addr - Get own MAC address * @priv: private driver interface data * * Returns: Pointer to own MAC address or %NULL on failure * * This optional function can be used to get the own MAC address of the * device from the driver interface code. This is only needed if the * l2_packet implementation for the OS does not provide easy access to * a MAC address. */ const u8 * (*get_mac_addr)(void *priv); /** * send_eapol - Optional function for sending EAPOL packets * @priv: private driver interface data * @dest: Destination MAC address * @proto: Ethertype * @data: EAPOL packet starting with IEEE 802.1X header * @data_len: Size of the EAPOL packet * * Returns: 0 on success, -1 on failure * * This optional function can be used to override l2_packet operations * with driver specific functionality. If this function pointer is set, * l2_packet module is not used at all and the driver interface code is * responsible for receiving and sending all EAPOL packets. The * received EAPOL packets are sent to core code with EVENT_EAPOL_RX * event. The driver interface is required to implement get_mac_addr() * handler if send_eapol() is used. */ int (*send_eapol)(void *priv, const u8 *dest, u16 proto, const u8 *data, size_t data_len); /** * set_operstate - Sets device operating state to DORMANT or UP * @priv: private driver interface data * @state: 0 = dormant, 1 = up * Returns: 0 on success, -1 on failure * * This is an optional function that can be used on operating systems * that support a concept of controlling network device state from user * space applications. This function, if set, gets called with * state = 1 when authentication has been completed and with state = 0 * when connection is lost. */ int (*set_operstate)(void *priv, int state); /** * mlme_setprotection - MLME-SETPROTECTION.request primitive * @priv: Private driver interface data * @addr: Address of the station for which to set protection (may be * %NULL for group keys) * @protect_type: MLME_SETPROTECTION_PROTECT_TYPE_* * @key_type: MLME_SETPROTECTION_KEY_TYPE_* * Returns: 0 on success, -1 on failure * * This is an optional function that can be used to set the driver to * require protection for Tx and/or Rx frames. This uses the layer * interface defined in IEEE 802.11i-2004 clause 10.3.22.1 * (MLME-SETPROTECTION.request). Many drivers do not use explicit * set protection operation; instead, they set protection implicitly * based on configured keys. */ int (*mlme_setprotection)(void *priv, const u8 *addr, int protect_type, int key_type); /** * get_hw_feature_data - Get hardware support data (channels and rates) * @priv: Private driver interface data * @num_modes: Variable for returning the number of returned modes * flags: Variable for returning hardware feature flags * Returns: Pointer to allocated hardware data on success or %NULL on * failure. Caller is responsible for freeing this. */ struct hostapd_hw_modes * (*get_hw_feature_data)(void *priv, u16 *num_modes, u16 *flags); /** * send_mlme - Send management frame from MLME * @priv: Private driver interface data * @data: IEEE 802.11 management frame with IEEE 802.11 header * @data_len: Size of the management frame * @noack: Do not wait for this frame to be acked (disable retries) * Returns: 0 on success, -1 on failure */ int (*send_mlme)(void *priv, const u8 *data, size_t data_len, int noack); /** * update_ft_ies - Update FT (IEEE 802.11r) IEs * @priv: Private driver interface data * @md: Mobility domain (2 octets) (also included inside ies) * @ies: FT IEs (MDIE, FTIE, ...) or %NULL to remove IEs * @ies_len: Length of FT IEs in bytes * Returns: 0 on success, -1 on failure * * The supplicant uses this callback to let the driver know that keying * material for FT is available and that the driver can use the * provided IEs in the next message in FT authentication sequence. * * This function is only needed for driver that support IEEE 802.11r * (Fast BSS Transition). */ int (*update_ft_ies)(void *priv, const u8 *md, const u8 *ies, size_t ies_len); /** * send_ft_action - Send FT Action frame (IEEE 802.11r) * @priv: Private driver interface data * @action: Action field value * @target_ap: Target AP address * @ies: FT IEs (MDIE, FTIE, ...) (FT Request action frame body) * @ies_len: Length of FT IEs in bytes * Returns: 0 on success, -1 on failure * * The supplicant uses this callback to request the driver to transmit * an FT Action frame (action category 6) for over-the-DS fast BSS * transition. */ int (*send_ft_action)(void *priv, u8 action, const u8 *target_ap, const u8 *ies, size_t ies_len); /** * get_scan_results2 - Fetch the latest scan results * @priv: private driver interface data * * Returns: Allocated buffer of scan results (caller is responsible for * freeing the data structure) on success, NULL on failure */ struct wpa_scan_results * (*get_scan_results2)(void *priv); /** * set_country - Set country * @priv: Private driver interface data * @alpha2: country to which to switch to * Returns: 0 on success, -1 on failure * * This function is for drivers which support some form * of setting a regulatory domain. */ int (*set_country)(void *priv, const char *alpha2); /** * get_country - Get country * @priv: Private driver interface data * @alpha2: Buffer for returning country code (at least 3 octets) * Returns: 0 on success, -1 on failure */ int (*get_country)(void *priv, char *alpha2); /** * global_init - Global driver initialization * Returns: Pointer to private data (global), %NULL on failure * * This optional function is called to initialize the driver wrapper * for global data, i.e., data that applies to all interfaces. If this * function is implemented, global_deinit() will also need to be * implemented to free the private data. The driver will also likely * use init2() function instead of init() to get the pointer to global * data available to per-interface initializer. */ void * (*global_init)(void); /** * global_deinit - Global driver deinitialization * @priv: private driver global data from global_init() * * Terminate any global driver related functionality and free the * global data structure. */ void (*global_deinit)(void *priv); /** * init2 - Initialize driver interface (with global data) * @ctx: context to be used when calling wpa_supplicant functions, * e.g., wpa_supplicant_event() * @ifname: interface name, e.g., wlan0 * @global_priv: private driver global data from global_init() * Returns: Pointer to private data, %NULL on failure * * This function can be used instead of init() if the driver wrapper * uses global data. */ void * (*init2)(void *ctx, const char *ifname, void *global_priv); /** * get_interfaces - Get information about available interfaces * @global_priv: private driver global data from global_init() * Returns: Allocated buffer of interface information (caller is * responsible for freeing the data structure) on success, NULL on * failure */ struct wpa_interface_info * (*get_interfaces)(void *global_priv); /** * scan2 - Request the driver to initiate scan * @priv: private driver interface data * @params: Scan parameters * * Returns: 0 on success, -1 on failure * * Once the scan results are ready, the driver should report scan * results event for wpa_supplicant which will eventually request the * results with wpa_driver_get_scan_results2(). */ int (*scan2)(void *priv, struct wpa_driver_scan_params *params); /** * authenticate - Request driver to authenticate * @priv: private driver interface data * @params: authentication parameters * Returns: 0 on success, -1 on failure * * This is an optional function that can be used with drivers that * support separate authentication and association steps, i.e., when * wpa_supplicant can act as the SME. If not implemented, associate() * function is expected to take care of IEEE 802.11 authentication, * too. */ int (*authenticate)(void *priv, struct wpa_driver_auth_params *params); /** * set_ap - Set Beacon and Probe Response information for AP mode * @priv: Private driver interface data * @params: Parameters to use in AP mode * * This function is used to configure Beacon template and/or extra IEs * to add for Beacon and Probe Response frames for the driver in * AP mode. The driver is responsible for building the full Beacon * frame by concatenating the head part with TIM IE generated by the * driver/firmware and finishing with the tail part. Depending on the * driver architectue, this can be done either by using the full * template or the set of additional IEs (e.g., WPS and P2P IE). * Similarly, Probe Response processing depends on the driver design. * If the driver (or firmware) takes care of replying to Probe Request * frames, the extra IEs provided here needs to be added to the Probe * Response frames. * * Returns: 0 on success, -1 on failure */ int (*set_ap)(void *priv, struct wpa_driver_ap_params *params); /** * set_acl - Set ACL in AP mode * @priv: Private driver interface data * @params: Parameters to configure ACL * Returns: 0 on success, -1 on failure * * This is used only for the drivers which support MAC address ACL. */ int (*set_acl)(void *priv, struct hostapd_acl_params *params); /** * hapd_init - Initialize driver interface (hostapd only) * @hapd: Pointer to hostapd context * @params: Configuration for the driver wrapper * Returns: Pointer to private data, %NULL on failure * * This function is used instead of init() or init2() when the driver * wrapper is used with hostapd. */ void * (*hapd_init)(struct hostapd_data *hapd, struct wpa_init_params *params); /** * hapd_deinit - Deinitialize driver interface (hostapd only) * @priv: Private driver interface data from hapd_init() */ void (*hapd_deinit)(void *priv); /** * set_ieee8021x - Enable/disable IEEE 802.1X support (AP only) * @priv: Private driver interface data * @params: BSS parameters * Returns: 0 on success, -1 on failure * * This is an optional function to configure the kernel driver to * enable/disable IEEE 802.1X support and set WPA/WPA2 parameters. This * can be left undefined (set to %NULL) if IEEE 802.1X support is * always enabled and the driver uses set_ap() to set WPA/RSN IE * for Beacon frames. * * DEPRECATED - use set_ap() instead */ int (*set_ieee8021x)(void *priv, struct wpa_bss_params *params); /** * set_privacy - Enable/disable privacy (AP only) * @priv: Private driver interface data * @enabled: 1 = privacy enabled, 0 = disabled * Returns: 0 on success, -1 on failure * * This is an optional function to configure privacy field in the * kernel driver for Beacon frames. This can be left undefined (set to * %NULL) if the driver uses the Beacon template from set_ap(). * * DEPRECATED - use set_ap() instead */ int (*set_privacy)(void *priv, int enabled); /** * get_seqnum - Fetch the current TSC/packet number (AP only) * @ifname: The interface name (main or virtual) * @priv: Private driver interface data * @addr: MAC address of the station or %NULL for group keys * @idx: Key index * @seq: Buffer for returning the latest used TSC/packet number * Returns: 0 on success, -1 on failure * * This function is used to fetch the last used TSC/packet number for * a TKIP, CCMP, GCMP, or BIP/IGTK key. It is mainly used with group * keys, so there is no strict requirement on implementing support for * unicast keys (i.e., addr != %NULL). */ int (*get_seqnum)(const char *ifname, void *priv, const u8 *addr, int idx, u8 *seq); /** * flush - Flush all association stations (AP only) * @priv: Private driver interface data * Returns: 0 on success, -1 on failure * * This function requests the driver to disassociate all associated * stations. This function does not need to be implemented if the * driver does not process association frames internally. */ int (*flush)(void *priv); /** * set_generic_elem - Add IEs into Beacon/Probe Response frames (AP) * @priv: Private driver interface data * @elem: Information elements * @elem_len: Length of the elem buffer in octets * Returns: 0 on success, -1 on failure * * This is an optional function to add information elements in the * kernel driver for Beacon and Probe Response frames. This can be left * undefined (set to %NULL) if the driver uses the Beacon template from * set_ap(). * * DEPRECATED - use set_ap() instead */ int (*set_generic_elem)(void *priv, const u8 *elem, size_t elem_len); /** * read_sta_data - Fetch station data * @priv: Private driver interface data * @data: Buffer for returning station information * @addr: MAC address of the station * Returns: 0 on success, -1 on failure */ int (*read_sta_data)(void *priv, struct hostap_sta_driver_data *data, const u8 *addr); /** * hapd_send_eapol - Send an EAPOL packet (AP only) * @priv: private driver interface data * @addr: Destination MAC address * @data: EAPOL packet starting with IEEE 802.1X header * @data_len: Length of the EAPOL packet in octets * @encrypt: Whether the frame should be encrypted * @own_addr: Source MAC address * @flags: WPA_STA_* flags for the destination station * * Returns: 0 on success, -1 on failure */ int (*hapd_send_eapol)(void *priv, const u8 *addr, const u8 *data, size_t data_len, int encrypt, const u8 *own_addr, u32 flags); /** * sta_deauth - Deauthenticate a station (AP only) * @priv: Private driver interface data * @own_addr: Source address and BSSID for the Deauthentication frame * @addr: MAC address of the station to deauthenticate * @reason: Reason code for the Deauthentiation frame * Returns: 0 on success, -1 on failure * * This function requests a specific station to be deauthenticated and * a Deauthentication frame to be sent to it. */ int (*sta_deauth)(void *priv, const u8 *own_addr, const u8 *addr, int reason); /** * sta_disassoc - Disassociate a station (AP only) * @priv: Private driver interface data * @own_addr: Source address and BSSID for the Disassociation frame * @addr: MAC address of the station to disassociate * @reason: Reason code for the Disassociation frame * Returns: 0 on success, -1 on failure * * This function requests a specific station to be disassociated and * a Disassociation frame to be sent to it. */ int (*sta_disassoc)(void *priv, const u8 *own_addr, const u8 *addr, int reason); /** * sta_remove - Remove a station entry (AP only) * @priv: Private driver interface data * @addr: MAC address of the station to be removed * Returns: 0 on success, -1 on failure */ int (*sta_remove)(void *priv, const u8 *addr); /** * hapd_get_ssid - Get the current SSID (AP only) * @priv: Private driver interface data * @buf: Buffer for returning the SSID * @len: Maximum length of the buffer * Returns: Length of the SSID on success, -1 on failure * * This function need not be implemented if the driver uses Beacon * template from set_ap() and does not reply to Probe Request frames. */ int (*hapd_get_ssid)(void *priv, u8 *buf, int len); /** * hapd_set_ssid - Set SSID (AP only) * @priv: Private driver interface data * @buf: SSID * @len: Length of the SSID in octets * Returns: 0 on success, -1 on failure * * DEPRECATED - use set_ap() instead */ int (*hapd_set_ssid)(void *priv, const u8 *buf, int len); /** * hapd_set_countermeasures - Enable/disable TKIP countermeasures (AP) * @priv: Private driver interface data * @enabled: 1 = countermeasures enabled, 0 = disabled * Returns: 0 on success, -1 on failure * * This need not be implemented if the driver does not take care of * association processing. */ int (*hapd_set_countermeasures)(void *priv, int enabled); /** * sta_add - Add a station entry * @priv: Private driver interface data * @params: Station parameters * Returns: 0 on success, -1 on failure * * This function is used to add a station entry to the driver once the * station has completed association. This is only used if the driver * does not take care of association processing. * * With TDLS, this function is also used to add or set (params->set 1) * TDLS peer entries. */ int (*sta_add)(void *priv, struct hostapd_sta_add_params *params); /** * get_inact_sec - Get station inactivity duration (AP only) * @priv: Private driver interface data * @addr: Station address * Returns: Number of seconds station has been inactive, -1 on failure */ int (*get_inact_sec)(void *priv, const u8 *addr); /** * sta_clear_stats - Clear station statistics (AP only) * @priv: Private driver interface data * @addr: Station address * Returns: 0 on success, -1 on failure */ int (*sta_clear_stats)(void *priv, const u8 *addr); /** * set_freq - Set channel/frequency (AP only) * @priv: Private driver interface data * @freq: Channel parameters * Returns: 0 on success, -1 on failure */ int (*set_freq)(void *priv, struct hostapd_freq_params *freq); /** * set_rts - Set RTS threshold * @priv: Private driver interface data * @rts: RTS threshold in octets * Returns: 0 on success, -1 on failure */ int (*set_rts)(void *priv, int rts); /** * set_frag - Set fragmentation threshold * @priv: Private driver interface data * @frag: Fragmentation threshold in octets * Returns: 0 on success, -1 on failure */ int (*set_frag)(void *priv, int frag); /** * sta_set_flags - Set station flags (AP only) * @priv: Private driver interface data * @addr: Station address * @total_flags: Bitmap of all WPA_STA_* flags currently set * @flags_or: Bitmap of WPA_STA_* flags to add * @flags_and: Bitmap of WPA_STA_* flags to us as a mask * Returns: 0 on success, -1 on failure */ int (*sta_set_flags)(void *priv, const u8 *addr, int total_flags, int flags_or, int flags_and); /** * set_tx_queue_params - Set TX queue parameters * @priv: Private driver interface data * @queue: Queue number (0 = VO, 1 = VI, 2 = BE, 3 = BK) * @aifs: AIFS * @cw_min: cwMin * @cw_max: cwMax * @burst_time: Maximum length for bursting in 0.1 msec units */ int (*set_tx_queue_params)(void *priv, int queue, int aifs, int cw_min, int cw_max, int burst_time); /** * if_add - Add a virtual interface * @priv: Private driver interface data * @type: Interface type * @ifname: Interface name for the new virtual interface * @addr: Local address to use for the interface or %NULL to use the * parent interface address * @bss_ctx: BSS context for %WPA_IF_AP_BSS interfaces * @drv_priv: Pointer for overwriting the driver context or %NULL if * not allowed (applies only to %WPA_IF_AP_BSS type) * @force_ifname: Buffer for returning an interface name that the * driver ended up using if it differs from the requested ifname * @if_addr: Buffer for returning the allocated interface address * (this may differ from the requested addr if the driver cannot * change interface address) * @bridge: Bridge interface to use or %NULL if no bridge configured * @use_existing: Whether to allow existing interface to be used * Returns: 0 on success, -1 on failure */ int (*if_add)(void *priv, enum wpa_driver_if_type type, const char *ifname, const u8 *addr, void *bss_ctx, void **drv_priv, char *force_ifname, u8 *if_addr, const char *bridge, int use_existing); /** * if_remove - Remove a virtual interface * @priv: Private driver interface data * @type: Interface type * @ifname: Interface name of the virtual interface to be removed * Returns: 0 on success, -1 on failure */ int (*if_remove)(void *priv, enum wpa_driver_if_type type, const char *ifname); /** * set_sta_vlan - Bind a station into a specific interface (AP only) * @priv: Private driver interface data * @ifname: Interface (main or virtual BSS or VLAN) * @addr: MAC address of the associated station * @vlan_id: VLAN ID * Returns: 0 on success, -1 on failure * * This function is used to bind a station to a specific virtual * interface. It is only used if when virtual interfaces are supported, * e.g., to assign stations to different VLAN interfaces based on * information from a RADIUS server. This allows separate broadcast * domains to be used with a single BSS. */ int (*set_sta_vlan)(void *priv, const u8 *addr, const char *ifname, int vlan_id); /** * commit - Optional commit changes handler (AP only) * @priv: driver private data * Returns: 0 on success, -1 on failure * * This optional handler function can be registered if the driver * interface implementation needs to commit changes (e.g., by setting * network interface up) at the end of initial configuration. If set, * this handler will be called after initial setup has been completed. */ int (*commit)(void *priv); /** * send_ether - Send an ethernet packet (AP only) * @priv: private driver interface data * @dst: Destination MAC address * @src: Source MAC address * @proto: Ethertype * @data: EAPOL packet starting with IEEE 802.1X header * @data_len: Length of the EAPOL packet in octets * Returns: 0 on success, -1 on failure */ int (*send_ether)(void *priv, const u8 *dst, const u8 *src, u16 proto, const u8 *data, size_t data_len); /** * set_radius_acl_auth - Notification of RADIUS ACL change * @priv: Private driver interface data * @mac: MAC address of the station * @accepted: Whether the station was accepted * @session_timeout: Session timeout for the station * Returns: 0 on success, -1 on failure */ int (*set_radius_acl_auth)(void *priv, const u8 *mac, int accepted, u32 session_timeout); /** * set_radius_acl_expire - Notification of RADIUS ACL expiration * @priv: Private driver interface data * @mac: MAC address of the station * Returns: 0 on success, -1 on failure */ int (*set_radius_acl_expire)(void *priv, const u8 *mac); /** * set_ap_wps_ie - Add WPS IE(s) into Beacon/Probe Response frames (AP) * @priv: Private driver interface data * @beacon: WPS IE(s) for Beacon frames or %NULL to remove extra IE(s) * @proberesp: WPS IE(s) for Probe Response frames or %NULL to remove * extra IE(s) * @assocresp: WPS IE(s) for (Re)Association Response frames or %NULL * to remove extra IE(s) * Returns: 0 on success, -1 on failure * * This is an optional function to add WPS IE in the kernel driver for * Beacon and Probe Response frames. This can be left undefined (set * to %NULL) if the driver uses the Beacon template from set_ap() * and does not process Probe Request frames. If the driver takes care * of (Re)Association frame processing, the assocresp buffer includes * WPS IE(s) that need to be added to (Re)Association Response frames * whenever a (Re)Association Request frame indicated use of WPS. * * This will also be used to add P2P IE(s) into Beacon/Probe Response * frames when operating as a GO. The driver is responsible for adding * timing related attributes (e.g., NoA) in addition to the IEs * included here by appending them after these buffers. This call is * also used to provide Probe Response IEs for P2P Listen state * operations for drivers that generate the Probe Response frames * internally. * * DEPRECATED - use set_ap() instead */ int (*set_ap_wps_ie)(void *priv, const struct wpabuf *beacon, const struct wpabuf *proberesp, const struct wpabuf *assocresp); /** * set_supp_port - Set IEEE 802.1X Supplicant Port status * @priv: Private driver interface data * @authorized: Whether the port is authorized * Returns: 0 on success, -1 on failure */ int (*set_supp_port)(void *priv, int authorized); /** * set_wds_sta - Bind a station into a 4-address WDS (AP only) * @priv: Private driver interface data * @addr: MAC address of the associated station * @aid: Association ID * @val: 1 = bind to 4-address WDS; 0 = unbind * @bridge_ifname: Bridge interface to use for the WDS station or %NULL * to indicate that bridge is not to be used * @ifname_wds: Buffer to return the interface name for the new WDS * station or %NULL to indicate name is not returned. * Returns: 0 on success, -1 on failure */ int (*set_wds_sta)(void *priv, const u8 *addr, int aid, int val, const char *bridge_ifname, char *ifname_wds); /** * send_action - Transmit an Action frame * @priv: Private driver interface data * @freq: Frequency (in MHz) of the channel * @wait: Time to wait off-channel for a response (in ms), or zero * @dst: Destination MAC address (Address 1) * @src: Source MAC address (Address 2) * @bssid: BSSID (Address 3) * @data: Frame body * @data_len: data length in octets @ @no_cck: Whether CCK rates must not be used to transmit this frame * Returns: 0 on success, -1 on failure * * This command can be used to request the driver to transmit an action * frame to the specified destination. * * If the %WPA_DRIVER_FLAGS_OFFCHANNEL_TX flag is set, the frame will * be transmitted on the given channel and the device will wait for a * response on that channel for the given wait time. * * If the flag is not set, the wait time will be ignored. In this case, * if a remain-on-channel duration is in progress, the frame must be * transmitted on that channel; alternatively the frame may be sent on * the current operational channel (if in associated state in station * mode or while operating as an AP.) */ int (*send_action)(void *priv, unsigned int freq, unsigned int wait, const u8 *dst, const u8 *src, const u8 *bssid, const u8 *data, size_t data_len, int no_cck); /** * send_action_cancel_wait - Cancel action frame TX wait * @priv: Private driver interface data * * This command cancels the wait time associated with sending an action * frame. It is only available when %WPA_DRIVER_FLAGS_OFFCHANNEL_TX is * set in the driver flags. */ void (*send_action_cancel_wait)(void *priv); /** * remain_on_channel - Remain awake on a channel * @priv: Private driver interface data * @freq: Frequency (in MHz) of the channel * @duration: Duration in milliseconds * Returns: 0 on success, -1 on failure * * This command is used to request the driver to remain awake on the * specified channel for the specified duration and report received * Action frames with EVENT_RX_MGMT events. Optionally, received * Probe Request frames may also be requested to be reported by calling * probe_req_report(). These will be reported with EVENT_RX_PROBE_REQ. * * The driver may not be at the requested channel when this function * returns, i.e., the return code is only indicating whether the * request was accepted. The caller will need to wait until the * EVENT_REMAIN_ON_CHANNEL event indicates that the driver has * completed the channel change. This may take some time due to other * need for the radio and the caller should be prepared to timing out * its wait since there are no guarantees on when this request can be * executed. */ int (*remain_on_channel)(void *priv, unsigned int freq, unsigned int duration); /** * cancel_remain_on_channel - Cancel remain-on-channel operation * @priv: Private driver interface data * * This command can be used to cancel a remain-on-channel operation * before its originally requested duration has passed. This could be * used, e.g., when remain_on_channel() is used to request extra time * to receive a response to an Action frame and the response is * received when there is still unneeded time remaining on the * remain-on-channel operation. */ int (*cancel_remain_on_channel)(void *priv); /** * probe_req_report - Request Probe Request frames to be indicated * @priv: Private driver interface data * @report: Whether to report received Probe Request frames * Returns: 0 on success, -1 on failure (or if not supported) * * This command can be used to request the driver to indicate when * Probe Request frames are received with EVENT_RX_PROBE_REQ events. * Since this operation may require extra resources, e.g., due to less * optimal hardware/firmware RX filtering, many drivers may disable * Probe Request reporting at least in station mode. This command is * used to notify the driver when the Probe Request frames need to be * reported, e.g., during remain-on-channel operations. */ int (*probe_req_report)(void *priv, int report); /** * deinit_ap - Deinitialize AP mode * @priv: Private driver interface data * Returns: 0 on success, -1 on failure (or if not supported) * * This optional function can be used to disable AP mode related * configuration. If the interface was not dynamically added, * change the driver mode to station mode to allow normal station * operations like scanning to be completed. */ int (*deinit_ap)(void *priv); /** * deinit_p2p_cli - Deinitialize P2P client mode * @priv: Private driver interface data * Returns: 0 on success, -1 on failure (or if not supported) * * This optional function can be used to disable P2P client mode. If the * interface was not dynamically added, change the interface type back * to station mode. */ int (*deinit_p2p_cli)(void *priv); /** * suspend - Notification on system suspend/hibernate event * @priv: Private driver interface data */ void (*suspend)(void *priv); /** * resume - Notification on system resume/thaw event * @priv: Private driver interface data */ void (*resume)(void *priv); /** * signal_monitor - Set signal monitoring parameters * @priv: Private driver interface data * @threshold: Threshold value for signal change events; 0 = disabled * @hysteresis: Minimum change in signal strength before indicating a * new event * Returns: 0 on success, -1 on failure (or if not supported) * * This function can be used to configure monitoring of signal strength * with the current AP. Whenever signal strength drops below the * %threshold value or increases above it, EVENT_SIGNAL_CHANGE event * should be generated assuming the signal strength has changed at * least %hysteresis from the previously indicated signal change event. */ int (*signal_monitor)(void *priv, int threshold, int hysteresis); /** * send_frame - Send IEEE 802.11 frame (testing use only) * @priv: Private driver interface data * @data: IEEE 802.11 frame with IEEE 802.11 header * @data_len: Size of the frame * @encrypt: Whether to encrypt the frame (if keys are set) * Returns: 0 on success, -1 on failure * * This function is only used for debugging purposes and is not * required to be implemented for normal operations. */ int (*send_frame)(void *priv, const u8 *data, size_t data_len, int encrypt); /** * shared_freq - Get operating frequency of shared interface(s) * @priv: Private driver interface data * Returns: Operating frequency in MHz, 0 if no shared operation in * use, or -1 on failure * * This command can be used to request the current operating frequency * of any virtual interface that shares the same radio to provide * information for channel selection for other virtual interfaces. */ int (*shared_freq)(void *priv); /** * get_noa - Get current Notice of Absence attribute payload * @priv: Private driver interface data * @buf: Buffer for returning NoA * @buf_len: Buffer length in octets * Returns: Number of octets used in buf, 0 to indicate no NoA is being * advertized, or -1 on failure * * This function is used to fetch the current Notice of Absence * attribute value from GO. */ int (*get_noa)(void *priv, u8 *buf, size_t buf_len); /** * set_noa - Set Notice of Absence parameters for GO (testing) * @priv: Private driver interface data * @count: Count * @start: Start time in ms from next TBTT * @duration: Duration in ms * Returns: 0 on success or -1 on failure * * This function is used to set Notice of Absence parameters for GO. It * is used only for testing. To disable NoA, all parameters are set to * 0. */ int (*set_noa)(void *priv, u8 count, int start, int duration); /** * set_p2p_powersave - Set P2P power save options * @priv: Private driver interface data * @legacy_ps: 0 = disable, 1 = enable, 2 = maximum PS, -1 = no change * @opp_ps: 0 = disable, 1 = enable, -1 = no change * @ctwindow: 0.. = change (msec), -1 = no change * Returns: 0 on success or -1 on failure */ int (*set_p2p_powersave)(void *priv, int legacy_ps, int opp_ps, int ctwindow); /** * ampdu - Enable/disable aggregation * @priv: Private driver interface data * @ampdu: 1/0 = enable/disable A-MPDU aggregation * Returns: 0 on success or -1 on failure */ int (*ampdu)(void *priv, int ampdu); /** * get_radio_name - Get physical radio name for the device * @priv: Private driver interface data * Returns: Radio name or %NULL if not known * * The returned data must not be modified by the caller. It is assumed * that any interface that has the same radio name as another is * sharing the same physical radio. This information can be used to * share scan results etc. information between the virtual interfaces * to speed up various operations. */ const char * (*get_radio_name)(void *priv); /** * send_tdls_mgmt - for sending TDLS management packets * @priv: private driver interface data * @dst: Destination (peer) MAC address * @action_code: TDLS action code for the mssage * @dialog_token: Dialog Token to use in the message (if needed) * @status_code: Status Code or Reason Code to use (if needed) * @buf: TDLS IEs to add to the message * @len: Length of buf in octets * Returns: 0 on success, negative (<0) on failure * * This optional function can be used to send packet to driver which is * responsible for receiving and sending all TDLS packets. */ int (*send_tdls_mgmt)(void *priv, const u8 *dst, u8 action_code, u8 dialog_token, u16 status_code, const u8 *buf, size_t len); /** * tdls_oper - Ask the driver to perform high-level TDLS operations * @priv: Private driver interface data * @oper: TDLS high-level operation. See %enum tdls_oper * @peer: Destination (peer) MAC address * Returns: 0 on success, negative (<0) on failure * * This optional function can be used to send high-level TDLS commands * to the driver. */ int (*tdls_oper)(void *priv, enum tdls_oper oper, const u8 *peer); /** * wnm_oper - Notify driver of the WNM frame reception * @priv: Private driver interface data * @oper: WNM operation. See %enum wnm_oper * @peer: Destination (peer) MAC address * @buf: Buffer for the driver to fill in (for getting IE) * @buf_len: Return the len of buf * Returns: 0 on success, negative (<0) on failure */ int (*wnm_oper)(void *priv, enum wnm_oper oper, const u8 *peer, u8 *buf, u16 *buf_len); /** * set_qos_map - Set QoS Map * @priv: Private driver interface data * @qos_map_set: QoS Map * @qos_map_set_len: Length of QoS Map */ int (*set_qos_map)(void *priv, const u8 *qos_map_set, u8 qos_map_set_len); /** * signal_poll - Get current connection information * @priv: Private driver interface data * @signal_info: Connection info structure */ int (*signal_poll)(void *priv, struct wpa_signal_info *signal_info); /** * set_authmode - Set authentication algorithm(s) for static WEP * @priv: Private driver interface data * @authmode: 1=Open System, 2=Shared Key, 3=both * Returns: 0 on success, -1 on failure * * This function can be used to set authentication algorithms for AP * mode when static WEP is used. If the driver uses user space MLME/SME * implementation, there is no need to implement this function. * * DEPRECATED - use set_ap() instead */ int (*set_authmode)(void *priv, int authmode); #ifdef ANDROID /** * driver_cmd - Execute driver-specific command * @priv: Private driver interface data * @cmd: Command to execute * @buf: Return buffer * @buf_len: Buffer length * Returns: 0 on success, -1 on failure */ int (*driver_cmd)(void *priv, char *cmd, char *buf, size_t buf_len); #endif /* ANDROID */ /** * set_rekey_info - Set rekey information * @priv: Private driver interface data * @kek: Current KEK * @kck: Current KCK * @replay_ctr: Current EAPOL-Key Replay Counter * * This optional function can be used to provide information for the * driver/firmware to process EAPOL-Key frames in Group Key Handshake * while the host (including wpa_supplicant) is sleeping. */ void (*set_rekey_info)(void *priv, const u8 *kek, const u8 *kck, const u8 *replay_ctr); /** * sta_assoc - Station association indication * @priv: Private driver interface data * @own_addr: Source address and BSSID for association frame * @addr: MAC address of the station to associate * @reassoc: flag to indicate re-association * @status: association response status code * @ie: assoc response ie buffer * @len: ie buffer length * Returns: 0 on success, -1 on failure * * This function indicates the driver to send (Re)Association * Response frame to the station. */ int (*sta_assoc)(void *priv, const u8 *own_addr, const u8 *addr, int reassoc, u16 status, const u8 *ie, size_t len); /** * sta_auth - Station authentication indication * @priv: Private driver interface data * @own_addr: Source address and BSSID for authentication frame * @addr: MAC address of the station to associate * @seq: authentication sequence number * @status: authentication response status code * @ie: authentication frame ie buffer * @len: ie buffer length * * This function indicates the driver to send Authentication frame * to the station. */ int (*sta_auth)(void *priv, const u8 *own_addr, const u8 *addr, u16 seq, u16 status, const u8 *ie, size_t len); /** * add_tspec - Add traffic stream * @priv: Private driver interface data * @addr: MAC address of the station to associate * @tspec_ie: tspec ie buffer * @tspec_ielen: tspec ie length * Returns: 0 on success, -1 on failure * * This function adds the traffic steam for the station * and fills the medium_time in tspec_ie. */ int (*add_tspec)(void *priv, const u8 *addr, u8 *tspec_ie, size_t tspec_ielen); /** * add_sta_node - Add a station node in the driver * @priv: Private driver interface data * @addr: MAC address of the station to add * @auth_alg: authentication algorithm used by the station * Returns: 0 on success, -1 on failure * * This function adds the station node in the driver, when * the station gets added by FT-over-DS. */ int (*add_sta_node)(void *priv, const u8 *addr, u16 auth_alg); /** * sched_scan - Request the driver to initiate scheduled scan * @priv: Private driver interface data * @params: Scan parameters * @interval: Interval between scan cycles in milliseconds * Returns: 0 on success, -1 on failure * * This operation should be used for scheduled scan offload to * the hardware. Every time scan results are available, the * driver should report scan results event for wpa_supplicant * which will eventually request the results with * wpa_driver_get_scan_results2(). This operation is optional * and if not provided or if it returns -1, we fall back to * normal host-scheduled scans. */ int (*sched_scan)(void *priv, struct wpa_driver_scan_params *params, u32 interval); /** * stop_sched_scan - Request the driver to stop a scheduled scan * @priv: Private driver interface data * Returns: 0 on success, -1 on failure * * This should cause the scheduled scan to be stopped and * results should stop being sent. Must be supported if * sched_scan is supported. */ int (*stop_sched_scan)(void *priv); /** * poll_client - Probe (null data or such) the given station * @priv: Private driver interface data * @own_addr: MAC address of sending interface * @addr: MAC address of the station to probe * @qos: Indicates whether station is QoS station * * This function is used to verify whether an associated station is * still present. This function does not need to be implemented if the * driver provides such inactivity polling mechanism. */ void (*poll_client)(void *priv, const u8 *own_addr, const u8 *addr, int qos); /** * radio_disable - Disable/enable radio * @priv: Private driver interface data * @disabled: 1=disable 0=enable radio * Returns: 0 on success, -1 on failure * * This optional command is for testing purposes. It can be used to * disable the radio on a testbed device to simulate out-of-radio-range * conditions. */ int (*radio_disable)(void *priv, int disabled); /** * switch_channel - Announce channel switch and migrate the GO to the * given frequency * @priv: Private driver interface data * @settings: Settings for CSA period and new channel * Returns: 0 on success, -1 on failure * * This function is used to move the GO to the legacy STA channel to * avoid frequency conflict in single channel concurrency. */ int (*switch_channel)(void *priv, struct csa_settings *settings); /** * start_dfs_cac - Listen for radar interference on the channel * @priv: Private driver interface data * @freq: Channel parameters * Returns: 0 on success, -1 on failure */ int (*start_dfs_cac)(void *priv, struct hostapd_freq_params *freq); /** * stop_ap - Removes beacon from AP * @priv: Private driver interface data * Returns: 0 on success, -1 on failure (or if not supported) * * This optional function can be used to disable AP mode related * configuration. Unlike deinit_ap, it does not change to station * mode. */ int (*stop_ap)(void *priv); /** * get_survey - Retrieve survey data * @priv: Private driver interface data * @freq: If set, survey data for the specified frequency is only * being requested. If not set, all survey data is requested. * Returns: 0 on success, -1 on failure * * Use this to retrieve: * * - the observed channel noise floor * - the amount of time we have spent on the channel * - the amount of time during which we have spent on the channel that * the radio has determined the medium is busy and we cannot * transmit * - the amount of time we have spent receiving data * - the amount of time we have spent transmitting data * * This data can be used for spectrum heuristics. One example is * Automatic Channel Selection (ACS). The channel survey data is * kept on a linked list on the channel data, one entry is added * for each survey. The min_nf of the channel is updated for each * survey. */ int (*get_survey)(void *priv, unsigned int freq); /** * status - Get driver interface status information * @priv: Private driver interface data * @buf: Buffer for printing tou the status information * @buflen: Maximum length of the buffer * Returns: Length of written status information or -1 on failure */ int (*status)(void *priv, char *buf, size_t buflen); }; /** * enum wpa_event_type - Event type for wpa_supplicant_event() calls */ enum wpa_event_type { /** * EVENT_ASSOC - Association completed * * This event needs to be delivered when the driver completes IEEE * 802.11 association or reassociation successfully. * wpa_driver_ops::get_bssid() is expected to provide the current BSSID * after this event has been generated. In addition, optional * EVENT_ASSOCINFO may be generated just before EVENT_ASSOC to provide * more information about the association. If the driver interface gets * both of these events at the same time, it can also include the * assoc_info data in EVENT_ASSOC call. */ EVENT_ASSOC, /** * EVENT_DISASSOC - Association lost * * This event should be called when association is lost either due to * receiving deauthenticate or disassociate frame from the AP or when * sending either of these frames to the current AP. If the driver * supports separate deauthentication event, EVENT_DISASSOC should only * be used for disassociation and EVENT_DEAUTH for deauthentication. * In AP mode, union wpa_event_data::disassoc_info is required. */ EVENT_DISASSOC, /** * EVENT_MICHAEL_MIC_FAILURE - Michael MIC (TKIP) detected * * This event must be delivered when a Michael MIC error is detected by * the local driver. Additional data for event processing is * provided with union wpa_event_data::michael_mic_failure. This * information is used to request new encyption key and to initiate * TKIP countermeasures if needed. */ EVENT_MICHAEL_MIC_FAILURE, /** * EVENT_SCAN_RESULTS - Scan results available * * This event must be called whenever scan results are available to be * fetched with struct wpa_driver_ops::get_scan_results(). This event * is expected to be used some time after struct wpa_driver_ops::scan() * is called. If the driver provides an unsolicited event when the scan * has been completed, this event can be used to trigger * EVENT_SCAN_RESULTS call. If such event is not available from the * driver, the driver wrapper code is expected to use a registered * timeout to generate EVENT_SCAN_RESULTS call after the time that the * scan is expected to be completed. Optional information about * completed scan can be provided with union wpa_event_data::scan_info. */ EVENT_SCAN_RESULTS, /** * EVENT_ASSOCINFO - Report optional extra information for association * * This event can be used to report extra association information for * EVENT_ASSOC processing. This extra information includes IEs from * association frames and Beacon/Probe Response frames in union * wpa_event_data::assoc_info. EVENT_ASSOCINFO must be send just before * EVENT_ASSOC. Alternatively, the driver interface can include * assoc_info data in the EVENT_ASSOC call if it has all the * information available at the same point. */ EVENT_ASSOCINFO, /** * EVENT_INTERFACE_STATUS - Report interface status changes * * This optional event can be used to report changes in interface * status (interface added/removed) using union * wpa_event_data::interface_status. This can be used to trigger * wpa_supplicant to stop and re-start processing for the interface, * e.g., when a cardbus card is ejected/inserted. */ EVENT_INTERFACE_STATUS, /** * EVENT_PMKID_CANDIDATE - Report a candidate AP for pre-authentication * * This event can be used to inform wpa_supplicant about candidates for * RSN (WPA2) pre-authentication. If wpa_supplicant is not responsible * for scan request (ap_scan=2 mode), this event is required for * pre-authentication. If wpa_supplicant is performing scan request * (ap_scan=1), this event is optional since scan results can be used * to add pre-authentication candidates. union * wpa_event_data::pmkid_candidate is used to report the BSSID of the * candidate and priority of the candidate, e.g., based on the signal * strength, in order to try to pre-authenticate first with candidates * that are most likely targets for re-association. * * EVENT_PMKID_CANDIDATE can be called whenever the driver has updates * on the candidate list. In addition, it can be called for the current * AP and APs that have existing PMKSA cache entries. wpa_supplicant * will automatically skip pre-authentication in cases where a valid * PMKSA exists. When more than one candidate exists, this event should * be generated once for each candidate. * * Driver will be notified about successful pre-authentication with * struct wpa_driver_ops::add_pmkid() calls. */ EVENT_PMKID_CANDIDATE, /** * EVENT_STKSTART - Request STK handshake (MLME-STKSTART.request) * * This event can be used to inform wpa_supplicant about desire to set * up secure direct link connection between two stations as defined in * IEEE 802.11e with a new PeerKey mechanism that replaced the original * STAKey negotiation. The caller will need to set peer address for the * event. */ EVENT_STKSTART, /** * EVENT_TDLS - Request TDLS operation * * This event can be used to request a TDLS operation to be performed. */ EVENT_TDLS, /** * EVENT_FT_RESPONSE - Report FT (IEEE 802.11r) response IEs * * The driver is expected to report the received FT IEs from * FT authentication sequence from the AP. The FT IEs are included in * the extra information in union wpa_event_data::ft_ies. */ EVENT_FT_RESPONSE, /** * EVENT_IBSS_RSN_START - Request RSN authentication in IBSS * * The driver can use this event to inform wpa_supplicant about a STA * in an IBSS with which protected frames could be exchanged. This * event starts RSN authentication with the other STA to authenticate * the STA and set up encryption keys with it. */ EVENT_IBSS_RSN_START, /** * EVENT_AUTH - Authentication result * * This event should be called when authentication attempt has been * completed. This is only used if the driver supports separate * authentication step (struct wpa_driver_ops::authenticate). * Information about authentication result is included in * union wpa_event_data::auth. */ EVENT_AUTH, /** * EVENT_DEAUTH - Authentication lost * * This event should be called when authentication is lost either due * to receiving deauthenticate frame from the AP or when sending that * frame to the current AP. * In AP mode, union wpa_event_data::deauth_info is required. */ EVENT_DEAUTH, /** * EVENT_ASSOC_REJECT - Association rejected * * This event should be called when (re)association attempt has been * rejected by the AP. Information about the association response is * included in union wpa_event_data::assoc_reject. */ EVENT_ASSOC_REJECT, /** * EVENT_AUTH_TIMED_OUT - Authentication timed out */ EVENT_AUTH_TIMED_OUT, /** * EVENT_ASSOC_TIMED_OUT - Association timed out */ EVENT_ASSOC_TIMED_OUT, /** * EVENT_FT_RRB_RX - FT (IEEE 802.11r) RRB frame received */ EVENT_FT_RRB_RX, /** * EVENT_WPS_BUTTON_PUSHED - Report hardware push button press for WPS */ EVENT_WPS_BUTTON_PUSHED, /** * EVENT_TX_STATUS - Report TX status */ EVENT_TX_STATUS, /** * EVENT_RX_FROM_UNKNOWN - Report RX from unknown STA */ EVENT_RX_FROM_UNKNOWN, /** * EVENT_RX_MGMT - Report RX of a management frame */ EVENT_RX_MGMT, /** * EVENT_REMAIN_ON_CHANNEL - Remain-on-channel duration started * * This event is used to indicate when the driver has started the * requested remain-on-channel duration. Information about the * operation is included in union wpa_event_data::remain_on_channel. */ EVENT_REMAIN_ON_CHANNEL, /** * EVENT_CANCEL_REMAIN_ON_CHANNEL - Remain-on-channel timed out * * This event is used to indicate when the driver has completed * remain-on-channel duration, i.e., may noot be available on the * requested channel anymore. Information about the * operation is included in union wpa_event_data::remain_on_channel. */ EVENT_CANCEL_REMAIN_ON_CHANNEL, /** * EVENT_MLME_RX - Report reception of frame for MLME (test use only) * * This event is used only by driver_test.c and userspace MLME. */ EVENT_MLME_RX, /** * EVENT_RX_PROBE_REQ - Indicate received Probe Request frame * * This event is used to indicate when a Probe Request frame has been * received. Information about the received frame is included in * union wpa_event_data::rx_probe_req. The driver is required to report * these events only after successfully completed probe_req_report() * commands to request the events (i.e., report parameter is non-zero) * in station mode. In AP mode, Probe Request frames should always be * reported. */ EVENT_RX_PROBE_REQ, /** * EVENT_NEW_STA - New wired device noticed * * This event is used to indicate that a new device has been detected * in a network that does not use association-like functionality (i.e., * mainly wired Ethernet). This can be used to start EAPOL * authenticator when receiving a frame from a device. The address of * the device is included in union wpa_event_data::new_sta. */ EVENT_NEW_STA, /** * EVENT_EAPOL_RX - Report received EAPOL frame * * When in AP mode with hostapd, this event is required to be used to * deliver the receive EAPOL frames from the driver. With * %wpa_supplicant, this event is used only if the send_eapol() handler * is used to override the use of l2_packet for EAPOL frame TX. */ EVENT_EAPOL_RX, /** * EVENT_SIGNAL_CHANGE - Indicate change in signal strength * * This event is used to indicate changes in the signal strength * observed in frames received from the current AP if signal strength * monitoring has been enabled with signal_monitor(). */ EVENT_SIGNAL_CHANGE, /** * EVENT_INTERFACE_ENABLED - Notify that interface was enabled * * This event is used to indicate that the interface was enabled after * having been previously disabled, e.g., due to rfkill. */ EVENT_INTERFACE_ENABLED, /** * EVENT_INTERFACE_DISABLED - Notify that interface was disabled * * This event is used to indicate that the interface was disabled, * e.g., due to rfkill. */ EVENT_INTERFACE_DISABLED, /** * EVENT_CHANNEL_LIST_CHANGED - Channel list changed * * This event is used to indicate that the channel list has changed, * e.g., because of a regulatory domain change triggered by scan * results including an AP advertising a country code. */ EVENT_CHANNEL_LIST_CHANGED, /** * EVENT_INTERFACE_UNAVAILABLE - Notify that interface is unavailable * * This event is used to indicate that the driver cannot maintain this * interface in its operation mode anymore. The most likely use for * this is to indicate that AP mode operation is not available due to * operating channel would need to be changed to a DFS channel when * the driver does not support radar detection and another virtual * interfaces caused the operating channel to change. Other similar * resource conflicts could also trigger this for station mode * interfaces. */ EVENT_INTERFACE_UNAVAILABLE, /** * EVENT_BEST_CHANNEL * * Driver generates this event whenever it detects a better channel * (e.g., based on RSSI or channel use). This information can be used * to improve channel selection for a new AP/P2P group. */ EVENT_BEST_CHANNEL, /** * EVENT_UNPROT_DEAUTH - Unprotected Deauthentication frame received * * This event should be called when a Deauthentication frame is dropped * due to it not being protected (MFP/IEEE 802.11w). * union wpa_event_data::unprot_deauth is required to provide more * details of the frame. */ EVENT_UNPROT_DEAUTH, /** * EVENT_UNPROT_DISASSOC - Unprotected Disassociation frame received * * This event should be called when a Disassociation frame is dropped * due to it not being protected (MFP/IEEE 802.11w). * union wpa_event_data::unprot_disassoc is required to provide more * details of the frame. */ EVENT_UNPROT_DISASSOC, /** * EVENT_STATION_LOW_ACK * * Driver generates this event whenever it detected that a particular * station was lost. Detection can be through massive transmission * failures for example. */ EVENT_STATION_LOW_ACK, /** * EVENT_IBSS_PEER_LOST - IBSS peer not reachable anymore */ EVENT_IBSS_PEER_LOST, /** * EVENT_DRIVER_GTK_REKEY - Device/driver did GTK rekey * * This event carries the new replay counter to notify wpa_supplicant * of the current EAPOL-Key Replay Counter in case the driver/firmware * completed Group Key Handshake while the host (including * wpa_supplicant was sleeping). */ EVENT_DRIVER_GTK_REKEY, /** * EVENT_SCHED_SCAN_STOPPED - Scheduled scan was stopped */ EVENT_SCHED_SCAN_STOPPED, /** * EVENT_DRIVER_CLIENT_POLL_OK - Station responded to poll * * This event indicates that the station responded to the poll * initiated with @poll_client. */ EVENT_DRIVER_CLIENT_POLL_OK, /** * EVENT_EAPOL_TX_STATUS - notify of EAPOL TX status */ EVENT_EAPOL_TX_STATUS, /** * EVENT_CH_SWITCH - AP or GO decided to switch channels * * Described in wpa_event_data.ch_switch * */ EVENT_CH_SWITCH, /** * EVENT_WNM - Request WNM operation * * This event can be used to request a WNM operation to be performed. */ EVENT_WNM, /** * EVENT_CONNECT_FAILED_REASON - Connection failure reason in AP mode * * This event indicates that the driver reported a connection failure * with the specified client (for example, max client reached, etc.) in * AP mode. */ EVENT_CONNECT_FAILED_REASON, /** * EVENT_RADAR_DETECTED - Notify of radar detection * * A radar has been detected on the supplied frequency, hostapd should * react accordingly (e.g., change channel). */ EVENT_DFS_RADAR_DETECTED, /** * EVENT_CAC_FINISHED - Notify that channel availability check has been completed * * After a successful CAC, the channel can be marked clear and used. */ EVENT_DFS_CAC_FINISHED, /** * EVENT_CAC_ABORTED - Notify that channel availability check has been aborted * * The CAC was not successful, and the channel remains in the previous * state. This may happen due to a radar beeing detected or other * external influences. */ EVENT_DFS_CAC_ABORTED, /** * EVENT_DFS_CAC_NOP_FINISHED - Notify that non-occupancy period is over * * The channel which was previously unavailable is now available again. */ EVENT_DFS_NOP_FINISHED, /** * EVENT_SURVEY - Received survey data * * This event gets triggered when a driver query is issued for survey * data and the requested data becomes available. The returned data is * stored in struct survey_results. The results provide at most one * survey entry for each frequency and at minimum will provide one * survey entry for one frequency. The survey data can be os_malloc()'d * and then os_free()'d, so the event callback must only copy data. */ EVENT_SURVEY, /** * EVENT_SCAN_STARTED - Scan started * * This indicates that driver has started a scan operation either based * on a request from wpa_supplicant/hostapd or from another application. * EVENT_SCAN_RESULTS is used to indicate when the scan has been * completed (either successfully or by getting cancelled). */ EVENT_SCAN_STARTED, /** * EVENT_AVOID_FREQUENCIES - Received avoid frequency range * * This event indicates a set of frequency ranges that should be avoided * to reduce issues due to interference or internal co-existence * information in the driver. */ EVENT_AVOID_FREQUENCIES }; /** * struct freq_survey - Channel survey info * * @ifidx: Interface index in which this survey was observed * @freq: Center of frequency of the surveyed channel * @nf: Channel noise floor in dBm * @channel_time: Amount of time in ms the radio spent on the channel * @channel_time_busy: Amount of time in ms the radio detected some signal * that indicated to the radio the channel was not clear * @channel_time_rx: Amount of time the radio spent receiving data * @channel_time_tx: Amount of time the radio spent transmitting data * @filled: bitmask indicating which fields have been reported, see * SURVEY_HAS_* defines. * @list: Internal list pointers */ struct freq_survey { u32 ifidx; unsigned int freq; s8 nf; u64 channel_time; u64 channel_time_busy; u64 channel_time_rx; u64 channel_time_tx; unsigned int filled; struct dl_list list; }; #define SURVEY_HAS_NF BIT(0) #define SURVEY_HAS_CHAN_TIME BIT(1) #define SURVEY_HAS_CHAN_TIME_BUSY BIT(2) #define SURVEY_HAS_CHAN_TIME_RX BIT(3) #define SURVEY_HAS_CHAN_TIME_TX BIT(4) /** * union wpa_event_data - Additional data for wpa_supplicant_event() calls */ union wpa_event_data { /** * struct assoc_info - Data for EVENT_ASSOC and EVENT_ASSOCINFO events * * This structure is optional for EVENT_ASSOC calls and required for * EVENT_ASSOCINFO calls. By using EVENT_ASSOC with this data, the * driver interface does not need to generate separate EVENT_ASSOCINFO * calls. */ struct assoc_info { /** * reassoc - Flag to indicate association or reassociation */ int reassoc; /** * req_ies - (Re)Association Request IEs * * If the driver generates WPA/RSN IE, this event data must be * returned for WPA handshake to have needed information. If * wpa_supplicant-generated WPA/RSN IE is used, this * information event is optional. * * This should start with the first IE (fixed fields before IEs * are not included). */ const u8 *req_ies; /** * req_ies_len - Length of req_ies in bytes */ size_t req_ies_len; /** * resp_ies - (Re)Association Response IEs * * Optional association data from the driver. This data is not * required WPA, but may be useful for some protocols and as * such, should be reported if this is available to the driver * interface. * * This should start with the first IE (fixed fields before IEs * are not included). */ const u8 *resp_ies; /** * resp_ies_len - Length of resp_ies in bytes */ size_t resp_ies_len; /** * beacon_ies - Beacon or Probe Response IEs * * Optional Beacon/ProbeResp data: IEs included in Beacon or * Probe Response frames from the current AP (i.e., the one * that the client just associated with). This information is * used to update WPA/RSN IE for the AP. If this field is not * set, the results from previous scan will be used. If no * data for the new AP is found, scan results will be requested * again (without scan request). At this point, the driver is * expected to provide WPA/RSN IE for the AP (if WPA/WPA2 is * used). * * This should start with the first IE (fixed fields before IEs * are not included). */ const u8 *beacon_ies; /** * beacon_ies_len - Length of beacon_ies */ size_t beacon_ies_len; /** * freq - Frequency of the operational channel in MHz */ unsigned int freq; /** * addr - Station address (for AP mode) */ const u8 *addr; } assoc_info; /** * struct disassoc_info - Data for EVENT_DISASSOC events */ struct disassoc_info { /** * addr - Station address (for AP mode) */ const u8 *addr; /** * reason_code - Reason Code (host byte order) used in * Deauthentication frame */ u16 reason_code; /** * ie - Optional IE(s) in Disassociation frame */ const u8 *ie; /** * ie_len - Length of ie buffer in octets */ size_t ie_len; /** * locally_generated - Whether the frame was locally generated */ int locally_generated; } disassoc_info; /** * struct deauth_info - Data for EVENT_DEAUTH events */ struct deauth_info { /** * addr - Station address (for AP mode) */ const u8 *addr; /** * reason_code - Reason Code (host byte order) used in * Deauthentication frame */ u16 reason_code; /** * ie - Optional IE(s) in Deauthentication frame */ const u8 *ie; /** * ie_len - Length of ie buffer in octets */ size_t ie_len; /** * locally_generated - Whether the frame was locally generated */ int locally_generated; } deauth_info; /** * struct michael_mic_failure - Data for EVENT_MICHAEL_MIC_FAILURE */ struct michael_mic_failure { int unicast; const u8 *src; } michael_mic_failure; /** * struct interface_status - Data for EVENT_INTERFACE_STATUS */ struct interface_status { char ifname[100]; enum { EVENT_INTERFACE_ADDED, EVENT_INTERFACE_REMOVED } ievent; } interface_status; /** * struct pmkid_candidate - Data for EVENT_PMKID_CANDIDATE */ struct pmkid_candidate { /** BSSID of the PMKID candidate */ u8 bssid[ETH_ALEN]; /** Smaller the index, higher the priority */ int index; /** Whether RSN IE includes pre-authenticate flag */ int preauth; } pmkid_candidate; /** * struct stkstart - Data for EVENT_STKSTART */ struct stkstart { u8 peer[ETH_ALEN]; } stkstart; /** * struct tdls - Data for EVENT_TDLS */ struct tdls { u8 peer[ETH_ALEN]; enum { TDLS_REQUEST_SETUP, TDLS_REQUEST_TEARDOWN } oper; u16 reason_code; /* for teardown */ } tdls; /** * struct wnm - Data for EVENT_WNM */ struct wnm { u8 addr[ETH_ALEN]; enum { WNM_OPER_SLEEP, } oper; enum { WNM_SLEEP_ENTER, WNM_SLEEP_EXIT } sleep_action; int sleep_intval; u16 reason_code; u8 *buf; u16 buf_len; } wnm; /** * struct ft_ies - FT information elements (EVENT_FT_RESPONSE) * * During FT (IEEE 802.11r) authentication sequence, the driver is * expected to use this event to report received FT IEs (MDIE, FTIE, * RSN IE, TIE, possible resource request) to the supplicant. The FT * IEs for the next message will be delivered through the * struct wpa_driver_ops::update_ft_ies() callback. */ struct ft_ies { const u8 *ies; size_t ies_len; int ft_action; u8 target_ap[ETH_ALEN]; /** Optional IE(s), e.g., WMM TSPEC(s), for RIC-Request */ const u8 *ric_ies; /** Length of ric_ies buffer in octets */ size_t ric_ies_len; } ft_ies; /** * struct ibss_rsn_start - Data for EVENT_IBSS_RSN_START */ struct ibss_rsn_start { u8 peer[ETH_ALEN]; } ibss_rsn_start; /** * struct auth_info - Data for EVENT_AUTH events */ struct auth_info { u8 peer[ETH_ALEN]; u8 bssid[ETH_ALEN]; u16 auth_type; u16 auth_transaction; u16 status_code; const u8 *ies; size_t ies_len; } auth; /** * struct assoc_reject - Data for EVENT_ASSOC_REJECT events */ struct assoc_reject { /** * bssid - BSSID of the AP that rejected association */ const u8 *bssid; /** * resp_ies - (Re)Association Response IEs * * Optional association data from the driver. This data is not * required WPA, but may be useful for some protocols and as * such, should be reported if this is available to the driver * interface. * * This should start with the first IE (fixed fields before IEs * are not included). */ const u8 *resp_ies; /** * resp_ies_len - Length of resp_ies in bytes */ size_t resp_ies_len; /** * status_code - Status Code from (Re)association Response */ u16 status_code; } assoc_reject; struct timeout_event { u8 addr[ETH_ALEN]; } timeout_event; /** * struct ft_rrb_rx - Data for EVENT_FT_RRB_RX events */ struct ft_rrb_rx { const u8 *src; const u8 *data; size_t data_len; } ft_rrb_rx; /** * struct tx_status - Data for EVENT_TX_STATUS events */ struct tx_status { u16 type; u16 stype; const u8 *dst; const u8 *data; size_t data_len; int ack; } tx_status; /** * struct rx_from_unknown - Data for EVENT_RX_FROM_UNKNOWN events */ struct rx_from_unknown { const u8 *bssid; const u8 *addr; int wds; } rx_from_unknown; /** * struct rx_mgmt - Data for EVENT_RX_MGMT events */ struct rx_mgmt { const u8 *frame; size_t frame_len; u32 datarate; /** * freq - Frequency (in MHz) on which the frame was received */ int freq; /** * ssi_signal - Signal strength in dBm (or 0 if not available) */ int ssi_signal; } rx_mgmt; /** * struct remain_on_channel - Data for EVENT_REMAIN_ON_CHANNEL events * * This is also used with EVENT_CANCEL_REMAIN_ON_CHANNEL events. */ struct remain_on_channel { /** * freq - Channel frequency in MHz */ unsigned int freq; /** * duration - Duration to remain on the channel in milliseconds */ unsigned int duration; } remain_on_channel; /** * struct scan_info - Optional data for EVENT_SCAN_RESULTS events * @aborted: Whether the scan was aborted * @freqs: Scanned frequencies in MHz (%NULL = all channels scanned) * @num_freqs: Number of entries in freqs array * @ssids: Scanned SSIDs (%NULL or zero-length SSID indicates wildcard * SSID) * @num_ssids: Number of entries in ssids array */ struct scan_info { int aborted; const int *freqs; size_t num_freqs; struct wpa_driver_scan_ssid ssids[WPAS_MAX_SCAN_SSIDS]; size_t num_ssids; } scan_info; /** * struct mlme_rx - Data for EVENT_MLME_RX events */ struct mlme_rx { const u8 *buf; size_t len; int freq; int channel; int ssi; } mlme_rx; /** * struct rx_probe_req - Data for EVENT_RX_PROBE_REQ events */ struct rx_probe_req { /** * sa - Source address of the received Probe Request frame */ const u8 *sa; /** * da - Destination address of the received Probe Request frame * or %NULL if not available */ const u8 *da; /** * bssid - BSSID of the received Probe Request frame or %NULL * if not available */ const u8 *bssid; /** * ie - IEs from the Probe Request body */ const u8 *ie; /** * ie_len - Length of ie buffer in octets */ size_t ie_len; /** * signal - signal strength in dBm (or 0 if not available) */ int ssi_signal; } rx_probe_req; /** * struct new_sta - Data for EVENT_NEW_STA events */ struct new_sta { const u8 *addr; } new_sta; /** * struct eapol_rx - Data for EVENT_EAPOL_RX events */ struct eapol_rx { const u8 *src; const u8 *data; size_t data_len; } eapol_rx; /** * signal_change - Data for EVENT_SIGNAL_CHANGE events */ struct wpa_signal_info signal_change; /** * struct best_channel - Data for EVENT_BEST_CHANNEL events * @freq_24: Best 2.4 GHz band channel frequency in MHz * @freq_5: Best 5 GHz band channel frequency in MHz * @freq_overall: Best channel frequency in MHz * * 0 can be used to indicate no preference in either band. */ struct best_channel { int freq_24; int freq_5; int freq_overall; } best_chan; struct unprot_deauth { const u8 *sa; const u8 *da; u16 reason_code; } unprot_deauth; struct unprot_disassoc { const u8 *sa; const u8 *da; u16 reason_code; } unprot_disassoc; /** * struct low_ack - Data for EVENT_STATION_LOW_ACK events * @addr: station address */ struct low_ack { u8 addr[ETH_ALEN]; } low_ack; /** * struct ibss_peer_lost - Data for EVENT_IBSS_PEER_LOST */ struct ibss_peer_lost { u8 peer[ETH_ALEN]; } ibss_peer_lost; /** * struct driver_gtk_rekey - Data for EVENT_DRIVER_GTK_REKEY */ struct driver_gtk_rekey { const u8 *bssid; const u8 *replay_ctr; } driver_gtk_rekey; /** * struct client_poll - Data for EVENT_DRIVER_CLIENT_POLL_OK events * @addr: station address */ struct client_poll { u8 addr[ETH_ALEN]; } client_poll; /** * struct eapol_tx_status * @dst: Original destination * @data: Data starting with IEEE 802.1X header (!) * @data_len: Length of data * @ack: Indicates ack or lost frame * * This corresponds to hapd_send_eapol if the frame sent * there isn't just reported as EVENT_TX_STATUS. */ struct eapol_tx_status { const u8 *dst; const u8 *data; int data_len; int ack; } eapol_tx_status; /** * struct ch_switch * @freq: Frequency of new channel in MHz * @ht_enabled: Whether this is an HT channel * @ch_offset: Secondary channel offset * @ch_width: Channel width * @cf1: Center frequency 1 * @cf2: Center frequency 2 */ struct ch_switch { int freq; int ht_enabled; int ch_offset; enum chan_width ch_width; int cf1; int cf2; } ch_switch; /** * struct connect_failed - Data for EVENT_CONNECT_FAILED_REASON * @addr: Remote client address * @code: Reason code for connection failure */ struct connect_failed_reason { u8 addr[ETH_ALEN]; enum { MAX_CLIENT_REACHED, BLOCKED_CLIENT } code; } connect_failed_reason; /** * struct dfs_event - Data for radar detected events * @freq: Frequency of the channel in MHz */ struct dfs_event { int freq; int ht_enabled; int chan_offset; enum chan_width chan_width; int cf1; int cf2; } dfs_event; /** * survey_results - Survey result data for EVENT_SURVEY * @freq_filter: Requested frequency survey filter, 0 if request * was for all survey data * @survey_list: Linked list of survey data */ struct survey_results { unsigned int freq_filter; struct dl_list survey_list; /* struct freq_survey */ } survey_results; /** * channel_list_changed - Data for EVENT_CHANNEL_LIST_CHANGED * @initiator: Initiator of the regulatory change */ struct channel_list_changed { enum reg_change_initiator initiator; } channel_list_changed; /** * freq_range - List of frequency ranges * * This is used as the data with EVENT_AVOID_FREQUENCIES. */ struct wpa_freq_range_list freq_range; }; /** * wpa_supplicant_event - Report a driver event for wpa_supplicant * @ctx: Context pointer (wpa_s); this is the ctx variable registered * with struct wpa_driver_ops::init() * @event: event type (defined above) * @data: possible extra data for the event * * Driver wrapper code should call this function whenever an event is received * from the driver. */ void wpa_supplicant_event(void *ctx, enum wpa_event_type event, union wpa_event_data *data); /* * The following inline functions are provided for convenience to simplify * event indication for some of the common events. */ static inline void drv_event_assoc(void *ctx, const u8 *addr, const u8 *ie, size_t ielen, int reassoc) { union wpa_event_data event; os_memset(&event, 0, sizeof(event)); event.assoc_info.reassoc = reassoc; event.assoc_info.req_ies = ie; event.assoc_info.req_ies_len = ielen; event.assoc_info.addr = addr; wpa_supplicant_event(ctx, EVENT_ASSOC, &event); } static inline void drv_event_disassoc(void *ctx, const u8 *addr) { union wpa_event_data event; os_memset(&event, 0, sizeof(event)); event.disassoc_info.addr = addr; wpa_supplicant_event(ctx, EVENT_DISASSOC, &event); } static inline void drv_event_eapol_rx(void *ctx, const u8 *src, const u8 *data, size_t data_len) { union wpa_event_data event; os_memset(&event, 0, sizeof(event)); event.eapol_rx.src = src; event.eapol_rx.data = data; event.eapol_rx.data_len = data_len; wpa_supplicant_event(ctx, EVENT_EAPOL_RX, &event); } /* driver_common.c */ void wpa_scan_results_free(struct wpa_scan_results *res); /* Convert wpa_event_type to a string for logging */ const char * event_to_string(enum wpa_event_type event); /* NULL terminated array of linked in driver wrappers */ extern struct wpa_driver_ops *wpa_drivers[]; #endif /* DRIVER_H */