/* * hostapd / Initialization and configuration * Copyright (c) 2002-2014, Jouni Malinen * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #ifndef HOSTAPD_H #define HOSTAPD_H #include "common/defs.h" #include "utils/list.h" #include "ap_config.h" #include "drivers/driver.h" struct wpa_ctrl_dst; struct radius_server_data; struct upnp_wps_device_sm; struct hostapd_data; struct sta_info; struct ieee80211_ht_capabilities; struct full_dynamic_vlan; enum wps_event; union wps_event_data; #ifdef CONFIG_MESH struct mesh_conf; #endif /* CONFIG_MESH */ struct hostapd_iface; struct hapd_interfaces { int (*reload_config)(struct hostapd_iface *iface); struct hostapd_config * (*config_read_cb)(const char *config_fname); int (*ctrl_iface_init)(struct hostapd_data *hapd); void (*ctrl_iface_deinit)(struct hostapd_data *hapd); int (*for_each_interface)(struct hapd_interfaces *interfaces, int (*cb)(struct hostapd_iface *iface, void *ctx), void *ctx); int (*driver_init)(struct hostapd_iface *iface); size_t count; int global_ctrl_sock; struct wpa_ctrl_dst *global_ctrl_dst; char *global_iface_path; char *global_iface_name; #ifndef CONFIG_NATIVE_WINDOWS gid_t ctrl_iface_group; #endif /* CONFIG_NATIVE_WINDOWS */ struct hostapd_iface **iface; size_t terminate_on_error; #ifndef CONFIG_NO_VLAN struct dynamic_iface *vlan_priv; #endif /* CONFIG_NO_VLAN */ }; enum hostapd_chan_status { HOSTAPD_CHAN_VALID = 0, /* channel is ready */ HOSTAPD_CHAN_INVALID = 1, /* no usable channel found */ HOSTAPD_CHAN_ACS = 2, /* ACS work being performed */ }; struct hostapd_probereq_cb { int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, const u8 *ie, size_t ie_len, int ssi_signal); void *ctx; }; #define HOSTAPD_RATE_BASIC 0x00000001 struct hostapd_rate_data { int rate; /* rate in 100 kbps */ int flags; /* HOSTAPD_RATE_ flags */ }; struct hostapd_frame_info { u32 channel; u32 datarate; int ssi_signal; /* dBm */ }; enum wps_status { WPS_STATUS_SUCCESS = 1, WPS_STATUS_FAILURE }; enum pbc_status { WPS_PBC_STATUS_DISABLE, WPS_PBC_STATUS_ACTIVE, WPS_PBC_STATUS_TIMEOUT, WPS_PBC_STATUS_OVERLAP }; struct wps_stat { enum wps_status status; enum wps_error_indication failure_reason; enum pbc_status pbc_status; u8 peer_addr[ETH_ALEN]; }; /** * struct hostapd_data - hostapd per-BSS data structure */ struct hostapd_data { struct hostapd_iface *iface; struct hostapd_config *iconf; struct hostapd_bss_config *conf; int interface_added; /* virtual interface added for this BSS */ unsigned int started:1; unsigned int disabled:1; unsigned int reenable_beacon:1; u8 own_addr[ETH_ALEN]; int num_sta; /* number of entries in sta_list */ struct sta_info *sta_list; /* STA info list head */ #define STA_HASH_SIZE 256 #define STA_HASH(sta) (sta[5]) struct sta_info *sta_hash[STA_HASH_SIZE]; /* * Bitfield for indicating which AIDs are allocated. Only AID values * 1-2007 are used and as such, the bit at index 0 corresponds to AID * 1. */ #define AID_WORDS ((2008 + 31) / 32) u32 sta_aid[AID_WORDS]; const struct wpa_driver_ops *driver; void *drv_priv; void (*new_assoc_sta_cb)(struct hostapd_data *hapd, struct sta_info *sta, int reassoc); void *msg_ctx; /* ctx for wpa_msg() calls */ void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ struct radius_client_data *radius; u32 acct_session_id_hi, acct_session_id_lo; struct radius_das_data *radius_das; struct iapp_data *iapp; struct hostapd_cached_radius_acl *acl_cache; struct hostapd_acl_query_data *acl_queries; struct wpa_authenticator *wpa_auth; struct eapol_authenticator *eapol_auth; struct rsn_preauth_interface *preauth_iface; struct os_reltime michael_mic_failure; int michael_mic_failures; int tkip_countermeasures; int ctrl_sock; struct wpa_ctrl_dst *ctrl_dst; void *ssl_ctx; void *eap_sim_db_priv; struct radius_server_data *radius_srv; struct dl_list erp_keys; /* struct eap_server_erp_key */ int parameter_set_count; /* Time Advertisement */ u8 time_update_counter; struct wpabuf *time_adv; #ifdef CONFIG_FULL_DYNAMIC_VLAN struct full_dynamic_vlan *full_dynamic_vlan; #endif /* CONFIG_FULL_DYNAMIC_VLAN */ struct l2_packet_data *l2; struct wps_context *wps; int beacon_set_done; struct wpabuf *wps_beacon_ie; struct wpabuf *wps_probe_resp_ie; #ifdef CONFIG_WPS unsigned int ap_pin_failures; unsigned int ap_pin_failures_consecutive; struct upnp_wps_device_sm *wps_upnp; unsigned int ap_pin_lockout_time; struct wps_stat wps_stats; #endif /* CONFIG_WPS */ struct hostapd_probereq_cb *probereq_cb; size_t num_probereq_cb; void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, int freq); void *public_action_cb_ctx; void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len, int freq); void *public_action_cb2_ctx; int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, int freq); void *vendor_action_cb_ctx; void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, const u8 *uuid_e); void *wps_reg_success_cb_ctx; void (*wps_event_cb)(void *ctx, enum wps_event event, union wps_event_data *data); void *wps_event_cb_ctx; void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, int authorized, const u8 *p2p_dev_addr); void *sta_authorized_cb_ctx; void (*setup_complete_cb)(void *ctx); void *setup_complete_cb_ctx; void (*new_psk_cb)(void *ctx, const u8 *mac_addr, const u8 *p2p_dev_addr, const u8 *psk, size_t psk_len); void *new_psk_cb_ctx; /* channel switch parameters */ struct hostapd_freq_params cs_freq_params; u8 cs_count; int cs_block_tx; unsigned int cs_c_off_beacon; unsigned int cs_c_off_proberesp; int csa_in_progress; unsigned int cs_c_off_ecsa_beacon; unsigned int cs_c_off_ecsa_proberesp; /* BSS Load */ unsigned int bss_load_update_timeout; #ifdef CONFIG_P2P struct p2p_data *p2p; struct p2p_group *p2p_group; struct wpabuf *p2p_beacon_ie; struct wpabuf *p2p_probe_resp_ie; /* Number of non-P2P association stations */ int num_sta_no_p2p; /* Periodic NoA (used only when no non-P2P clients in the group) */ int noa_enabled; int noa_start; int noa_duration; #endif /* CONFIG_P2P */ #ifdef CONFIG_INTERWORKING size_t gas_frag_limit; #endif /* CONFIG_INTERWORKING */ #ifdef CONFIG_PROXYARP struct l2_packet_data *sock_dhcp; struct l2_packet_data *sock_ndisc; #endif /* CONFIG_PROXYARP */ #ifdef CONFIG_MESH int num_plinks; int max_plinks; void (*mesh_sta_free_cb)(struct sta_info *sta); struct wpabuf *mesh_pending_auth; struct os_reltime mesh_pending_auth_time; #endif /* CONFIG_MESH */ #ifdef CONFIG_SQLITE struct hostapd_eap_user tmp_eap_user; #endif /* CONFIG_SQLITE */ #ifdef CONFIG_SAE /** Key used for generating SAE anti-clogging tokens */ u8 sae_token_key[8]; struct os_reltime last_sae_token_key_update; int dot11RSNASAERetransPeriod; /* msec */ #endif /* CONFIG_SAE */ #ifdef CONFIG_TESTING_OPTIONS unsigned int ext_mgmt_frame_handling:1; unsigned int ext_eapol_frame_io:1; struct l2_packet_data *l2_test; #endif /* CONFIG_TESTING_OPTIONS */ }; struct hostapd_sta_info { struct dl_list list; u8 addr[ETH_ALEN]; struct os_reltime last_seen; }; /** * struct hostapd_iface - hostapd per-interface data structure */ struct hostapd_iface { struct hapd_interfaces *interfaces; void *owner; char *config_fname; struct hostapd_config *conf; char phy[16]; /* Name of the PHY (radio) */ enum hostapd_iface_state { HAPD_IFACE_UNINITIALIZED, HAPD_IFACE_DISABLED, HAPD_IFACE_COUNTRY_UPDATE, HAPD_IFACE_ACS, HAPD_IFACE_HT_SCAN, HAPD_IFACE_DFS, HAPD_IFACE_ENABLED } state; #ifdef CONFIG_MESH struct mesh_conf *mconf; #endif /* CONFIG_MESH */ size_t num_bss; struct hostapd_data **bss; unsigned int wait_channel_update:1; unsigned int cac_started:1; #ifdef CONFIG_FST struct fst_iface *fst; const struct wpabuf *fst_ies; #endif /* CONFIG_FST */ /* * When set, indicates that the driver will handle the AP * teardown: delete global keys, station keys, and stations. */ unsigned int driver_ap_teardown:1; /* * When set, indicates that this interface is part of list of * interfaces that need to be started together (synchronously). */ unsigned int need_to_start_in_sync:1; /* Ready to start but waiting for other interfaces to become ready. */ unsigned int ready_to_start_in_sync:1; int num_ap; /* number of entries in ap_list */ struct ap_info *ap_list; /* AP info list head */ struct ap_info *ap_hash[STA_HASH_SIZE]; u64 drv_flags; /* SMPS modes supported by the driver (WPA_DRIVER_SMPS_MODE_*) */ unsigned int smps_modes; /* * A bitmap of supported protocols for probe response offload. See * struct wpa_driver_capa in driver.h */ unsigned int probe_resp_offloads; /* extended capabilities supported by the driver */ const u8 *extended_capa, *extended_capa_mask; unsigned int extended_capa_len; unsigned int drv_max_acl_mac_addrs; struct hostapd_hw_modes *hw_features; int num_hw_features; struct hostapd_hw_modes *current_mode; /* Rates that are currently used (i.e., filtered copy of * current_mode->channels */ int num_rates; struct hostapd_rate_data *current_rates; int *basic_rates; int freq; u16 hw_flags; /* Number of associated Non-ERP stations (i.e., stations using 802.11b * in 802.11g BSS) */ int num_sta_non_erp; /* Number of associated stations that do not support Short Slot Time */ int num_sta_no_short_slot_time; /* Number of associated stations that do not support Short Preamble */ int num_sta_no_short_preamble; int olbc; /* Overlapping Legacy BSS Condition */ /* Number of HT associated stations that do not support greenfield */ int num_sta_ht_no_gf; /* Number of associated non-HT stations */ int num_sta_no_ht; /* Number of HT associated stations 20 MHz */ int num_sta_ht_20mhz; /* Number of HT40 intolerant stations */ int num_sta_ht40_intolerant; /* Overlapping BSS information */ int olbc_ht; u16 ht_op_mode; /* surveying helpers */ /* number of channels surveyed */ unsigned int chans_surveyed; /* lowest observed noise floor in dBm */ s8 lowest_nf; /* channel utilization calculation */ u64 last_channel_time; u64 last_channel_time_busy; u8 channel_utilization; /* eCSA IE will be added only if operating class is specified */ u8 cs_oper_class; unsigned int dfs_cac_ms; struct os_reltime dfs_cac_start; /* Latched with the actual secondary channel information and will be * used while juggling between HT20 and HT40 modes. */ int secondary_ch; #ifdef CONFIG_ACS unsigned int acs_num_completed_scans; #endif /* CONFIG_ACS */ void (*scan_cb)(struct hostapd_iface *iface); int num_ht40_scan_tries; struct dl_list sta_seen; /* struct hostapd_sta_info */ unsigned int num_sta_seen; }; /* hostapd.c */ int hostapd_for_each_interface(struct hapd_interfaces *interfaces, int (*cb)(struct hostapd_iface *iface, void *ctx), void *ctx); int hostapd_reload_config(struct hostapd_iface *iface); struct hostapd_data * hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, struct hostapd_config *conf, struct hostapd_bss_config *bss); int hostapd_setup_interface(struct hostapd_iface *iface); int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); void hostapd_interface_deinit(struct hostapd_iface *iface); void hostapd_interface_free(struct hostapd_iface *iface); struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces, const char *config_file); struct hostapd_iface * hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy, const char *config_fname, int debug); void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, int reassoc); void hostapd_interface_deinit_free(struct hostapd_iface *iface); int hostapd_enable_iface(struct hostapd_iface *hapd_iface); int hostapd_reload_iface(struct hostapd_iface *hapd_iface); int hostapd_disable_iface(struct hostapd_iface *hapd_iface); int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator); void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s); const char * hostapd_state_text(enum hostapd_iface_state s); int hostapd_csa_in_progress(struct hostapd_iface *iface); int hostapd_switch_channel(struct hostapd_data *hapd, struct csa_settings *settings); void hostapd_switch_channel_fallback(struct hostapd_iface *iface, const struct hostapd_freq_params *freq_params); void hostapd_cleanup_cs_params(struct hostapd_data *hapd); void hostapd_periodic_iface(struct hostapd_iface *iface); /* utils.c */ int hostapd_register_probereq_cb(struct hostapd_data *hapd, int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, const u8 *ie, size_t ie_len, int ssi_signal), void *ctx); void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); /* drv_callbacks.c (TODO: move to somewhere else?) */ int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, const u8 *ie, size_t ielen, int reassoc); void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); void hostapd_event_connect_failed_reason(struct hostapd_data *hapd, const u8 *addr, int reason_code); int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, const u8 *bssid, const u8 *ie, size_t ie_len, int ssi_signal); void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, int offset, int width, int cf1, int cf2); struct survey_results; void hostapd_event_get_survey(struct hostapd_iface *iface, struct survey_results *survey_results); void hostapd_acs_channel_selected(struct hostapd_data *hapd, struct acs_selected_channels *acs_res); const struct hostapd_eap_user * hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity, size_t identity_len, int phase2); struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces, const char *ifname); #ifdef CONFIG_FST void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd, struct fst_wpa_obj *iface_obj); #endif /* CONFIG_FST */ #endif /* HOSTAPD_H */