src/ap/hostapd.h - LeafOS-Project/android_external_wpa_supplicant_8 - Gitiles

 /*
  * hostapd / Initialization and configuration
  * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
  */

 #ifndef HOSTAPD_H
 #define HOSTAPD_H

 #ifdef CONFIG_SQLITE
 #include <sqlite3.h>
 #endif /* CONFIG_SQLITE */

 #include "common/defs.h"
 #include "common/dpp.h"
 #include "utils/list.h"
 #include "ap_config.h"
 #include "drivers/driver.h"

 #define OCE_STA_CFON_ENABLED(hapd) \
 	((hapd->conf->oce & OCE_STA_CFON) && \
 	 (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_OCE_STA_CFON))
 #define OCE_AP_ENABLED(hapd) \
 	((hapd->conf->oce & OCE_AP) && \
 	 (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_OCE_AP))

 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 */

 #ifdef CONFIG_CTRL_IFACE_UDP
 #define CTRL_IFACE_COOKIE_LEN 8
 #endif /* CONFIG_CTRL_IFACE_UDP */

 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 dl_list 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 */
 #ifdef CONFIG_ETH_P_OUI
 	struct dl_list eth_p_oui; /* OUI Extended EtherType handlers */
 #endif /* CONFIG_ETH_P_OUI */
 	int eloop_initialized;

 #ifdef CONFIG_DPP
 	struct dpp_global *dpp;
 #ifdef CONFIG_DPP3
 	struct os_reltime dpp_pb_time;
 	struct os_reltime dpp_pb_announce_time;
 	struct dpp_pb_info dpp_pb[DPP_PB_INFO_COUNT];
 	struct dpp_bootstrap_info *dpp_pb_bi;
 	u8 dpp_pb_c_nonce[DPP_MAX_NONCE_LEN];
 	u8 dpp_pb_resp_hash[SHA256_MAC_LEN];
 	struct os_reltime dpp_pb_last_resp;
 	bool dpp_pb_result_indicated;
 	char *dpp_pb_cmd;
 #endif /* CONFIG_DPP3 */
 #endif /* CONFIG_DPP */

 #ifdef CONFIG_CTRL_IFACE_UDP
        unsigned char ctrl_iface_cookie[CTRL_IFACE_COOKIE_LEN];
 #endif /* CONFIG_CTRL_IFACE_UDP */

 };

 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 {
 	unsigned int freq;
 	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_neighbor_entry {
 	struct dl_list list;
 	u8 bssid[ETH_ALEN];
 	struct wpa_ssid_value ssid;
 	struct wpabuf *nr;
 	struct wpabuf *lci;
 	struct wpabuf *civic;
 	/* LCI update time */
 	struct os_time lci_date;
 	int stationary;
 	u32 short_ssid;
 	u8 bss_parameters;
 };

 struct hostapd_sae_commit_queue {
 	struct dl_list list;
 	int rssi;
 	size_t len;
 	u8 msg[];
 };

 /**
  * 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;
 	u64 acct_session_id;
 	struct radius_das_data *radius_das;

 	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 eap_config *eap_cfg;

 	struct rsn_preauth_interface *preauth_iface;
 	struct os_reltime michael_mic_failure;
 	int michael_mic_failures;
 	int tkip_countermeasures;

 	int ctrl_sock;
 	struct dl_list ctrl_dst;

 	void *ssl_ctx;
 	void *eap_sim_db_priv;
 	struct crypto_rsa_key *imsi_privacy_key;
 	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;

 #ifdef CONFIG_IEEE80211R_AP
 	struct dl_list l2_queue;
 	struct dl_list l2_oui_queue;
 	struct eth_p_oui_ctx *oui_pull;
 	struct eth_p_oui_ctx *oui_resp;
 	struct eth_p_oui_ctx *oui_push;
 	struct eth_p_oui_ctx *oui_sreq;
 	struct eth_p_oui_ctx *oui_sresp;
 #endif /* CONFIG_IEEE80211R_AP */

 	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 */

 #ifdef CONFIG_MACSEC
 	struct ieee802_1x_kay *kay;
 #endif /* CONFIG_MACSEC */

 	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,
 				  const u8 *ip);
 	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;

 #ifdef CONFIG_IEEE80211AX
 	bool cca_in_progress;
 	u8 cca_count;
 	u8 cca_color;
 	unsigned int cca_c_off_beacon;
 	unsigned int cca_c_off_proberesp;
 	struct os_reltime first_color_collision;
 	struct os_reltime last_color_collision;
 	u64 color_collision_bitmap;
 #endif /* CONFIG_IEEE80211AX */

 #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_PROXYARP
 	struct l2_packet_data *sock_dhcp;
 	struct l2_packet_data *sock_ndisc;
 	bool x_snoop_initialized;
 #endif /* CONFIG_PROXYARP */
 #ifdef CONFIG_MESH
 	int num_plinks;
 	int max_plinks;
 	void (*mesh_sta_free_cb)(struct hostapd_data *hapd,
 				 struct sta_info *sta);
 	struct wpabuf *mesh_pending_auth;
 	struct os_reltime mesh_pending_auth_time;
 	u8 mesh_required_peer[ETH_ALEN];
 #endif /* CONFIG_MESH */

 #ifdef CONFIG_SQLITE
 	struct hostapd_eap_user tmp_eap_user;
 #endif /* CONFIG_SQLITE */

 #ifdef CONFIG_SAE

 #define COMEBACK_KEY_SIZE 8
 #define COMEBACK_PENDING_IDX_SIZE 256

 	/** Key used for generating SAE anti-clogging tokens */
 	u8 comeback_key[COMEBACK_KEY_SIZE];
 	struct os_reltime last_comeback_key_update;
 	u16 comeback_idx;
 	u16 comeback_pending_idx[COMEBACK_PENDING_IDX_SIZE];
 	int dot11RSNASAERetransPeriod; /* msec */
 	struct dl_list sae_commit_queue; /* struct hostapd_sae_commit_queue */
 #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;

 	enum wpa_alg last_gtk_alg;
 	int last_gtk_key_idx;
 	u8 last_gtk[WPA_GTK_MAX_LEN];
 	size_t last_gtk_len;

 	enum wpa_alg last_igtk_alg;
 	int last_igtk_key_idx;
 	u8 last_igtk[WPA_IGTK_MAX_LEN];
 	size_t last_igtk_len;

 	enum wpa_alg last_bigtk_alg;
 	int last_bigtk_key_idx;
 	u8 last_bigtk[WPA_BIGTK_MAX_LEN];
 	size_t last_bigtk_len;

 	bool force_backlog_bytes;
 #endif /* CONFIG_TESTING_OPTIONS */

 #ifdef CONFIG_MBO
 	unsigned int mbo_assoc_disallow;
 #endif /* CONFIG_MBO */

 	struct dl_list nr_db;

 	u8 beacon_req_token;
 	u8 lci_req_token;
 	u8 range_req_token;
 	unsigned int lci_req_active:1;
 	unsigned int range_req_active:1;

 	int dhcp_sock; /* UDP socket used with the DHCP server */

 	struct ptksa_cache *ptksa;

 #ifdef CONFIG_DPP
 	int dpp_init_done;
 	struct dpp_authentication *dpp_auth;
 	u8 dpp_allowed_roles;
 	int dpp_qr_mutual;
 	int dpp_auth_ok_on_ack;
 	int dpp_in_response_listen;
 	struct gas_query_ap *gas;
 	struct dpp_pkex *dpp_pkex;
 	struct dpp_bootstrap_info *dpp_pkex_bi;
 	char *dpp_pkex_code;
 	size_t dpp_pkex_code_len;
 	char *dpp_pkex_identifier;
 	enum dpp_pkex_ver dpp_pkex_ver;
 	char *dpp_pkex_auth_cmd;
 	char *dpp_configurator_params;
 	struct os_reltime dpp_last_init;
 	struct os_reltime dpp_init_iter_start;
 	unsigned int dpp_init_max_tries;
 	unsigned int dpp_init_retry_time;
 	unsigned int dpp_resp_wait_time;
 	unsigned int dpp_resp_max_tries;
 	unsigned int dpp_resp_retry_time;
 #ifdef CONFIG_DPP2
 	struct wpabuf *dpp_presence_announcement;
 	struct dpp_bootstrap_info *dpp_chirp_bi;
 	int dpp_chirp_freq;
 	int *dpp_chirp_freqs;
 	int dpp_chirp_iter;
 	int dpp_chirp_round;
 	int dpp_chirp_scan_done;
 	int dpp_chirp_listen;
 	struct os_reltime dpp_relay_last_needs_ctrl;
 #endif /* CONFIG_DPP2 */
 #ifdef CONFIG_TESTING_OPTIONS
 	char *dpp_config_obj_override;
 	char *dpp_discovery_override;
 	char *dpp_groups_override;
 	unsigned int dpp_ignore_netaccesskey_mismatch:1;
 #endif /* CONFIG_TESTING_OPTIONS */
 #endif /* CONFIG_DPP */

 #ifdef CONFIG_AIRTIME_POLICY
 	unsigned int num_backlogged_sta;
 	unsigned int airtime_weight;
 #endif /* CONFIG_AIRTIME_POLICY */

 	u8 last_1x_eapol_key_replay_counter[8];

 #ifdef CONFIG_SQLITE
 	sqlite3 *rad_attr_db;
 #endif /* CONFIG_SQLITE */

 #ifdef CONFIG_CTRL_IFACE_UDP
        unsigned char ctrl_iface_cookie[CTRL_IFACE_COOKIE_LEN];
 #endif /* CONFIG_CTRL_IFACE_UDP */
 };


 struct hostapd_sta_info {
 	struct dl_list list;
 	u8 addr[ETH_ALEN];
 	struct os_reltime last_seen;
 	int ssi_signal;
 #ifdef CONFIG_TAXONOMY
 	struct wpabuf *probe_ie_taxonomy;
 #endif /* CONFIG_TAXONOMY */
 };

 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
 };

 /**
  * 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 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;
 	u64 drv_flags2;

 	/*
 	 * 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;

 	/* Background radar configuration */
 	struct {
 		int channel;
 		int secondary_channel;
 		int freq;
 		int centr_freq_seg0_idx;
 		int centr_freq_seg1_idx;
 		/* Main chain is on temporary channel during
 		 * CAC detection on radar offchain.
 		 */
 		unsigned int temp_ch:1;
 		/* CAC started on radar offchain */
 		unsigned int cac_started:1;
 	} radar_background;

 	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;

 	unsigned int chan_util_samples_sum;
 	unsigned int chan_util_num_sample_periods;
 	unsigned int chan_util_average;

 	/* 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;

 	u8 dfs_domain;
 #ifdef CONFIG_AIRTIME_POLICY
 	unsigned int airtime_quantum;
 #endif /* CONFIG_AIRTIME_POLICY */

 	/* Previous WMM element information */
 	struct hostapd_wmm_ac_params prev_wmm[WMM_AC_NUM];

 	/* Maximum number of interfaces supported for MBSSID advertisement */
 	unsigned int mbssid_max_interfaces;
 	/* Maximum profile periodicity for enhanced MBSSID advertisement */
 	unsigned int ema_max_periodicity;

 	int (*enable_iface_cb)(struct hostapd_iface *iface);
 	int (*disable_iface_cb)(struct hostapd_iface *iface);
 };

 /* 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);
 void hostapd_reconfig_encryption(struct hostapd_data *hapd);
 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_alloc_iface(void);
 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_reload_bss_only(struct hostapd_data *bss);
 int hostapd_disable_iface(struct hostapd_iface *hapd_iface);
 void hostapd_bss_deinit_no_free(struct hostapd_data *hapd);
 void hostapd_free_hapd_data(struct hostapd_data *hapd);
 void hostapd_cleanup_iface_partial(struct hostapd_iface *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);
 void hostapd_chan_switch_config(struct hostapd_data *hapd,
 				struct hostapd_freq_params *freq_params);
 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);
 int hostapd_owe_trans_get_info(struct hostapd_data *hapd);
 void hostapd_ocv_check_csa_sa_query(void *eloop_ctx, void *timeout_ctx);

 void hostapd_switch_color(struct hostapd_data *hapd, u64 bitmap);
 void hostapd_cleanup_cca_params(struct hostapd_data *hapd);

 /* 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?) */
 void hostapd_notify_assoc_fils_finish(struct hostapd_data *hapd,
 				      struct sta_info *sta);
 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,
 			     u16 punct_bitmap, int finished);
 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);
 void hostapd_event_sta_opmode_changed(struct hostapd_data *hapd, const u8 *addr,
 				      enum smps_mode smps_mode,
 				      enum chan_width chan_width, u8 rx_nss);

 #ifdef CONFIG_FST
 void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,
 				struct fst_wpa_obj *iface_obj);
 #endif /* CONFIG_FST */

 int hostapd_set_acl(struct hostapd_data *hapd);
 struct hostapd_data * hostapd_mbssid_get_tx_bss(struct hostapd_data *hapd);
 int hostapd_mbssid_get_bss_index(struct hostapd_data *hapd);

 #endif /* HOSTAPD_H */
	/*
	* hostapd / Initialization and configuration
	* Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
	*
	* This software may be distributed under the terms of the BSD license.
	* See README for more details.
	*/

	#ifndef HOSTAPD_H
	#define HOSTAPD_H

	#ifdef CONFIG_SQLITE
	#include <sqlite3.h>
	#endif /* CONFIG_SQLITE */

	#include "common/defs.h"
	#include "common/dpp.h"
	#include "utils/list.h"
	#include "ap_config.h"
	#include "drivers/driver.h"

	#define OCE_STA_CFON_ENABLED(hapd) \
	((hapd->conf->oce & OCE_STA_CFON) && \
	(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_OCE_STA_CFON))
	#define OCE_AP_ENABLED(hapd) \
	((hapd->conf->oce & OCE_AP) && \
	(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_OCE_AP))

	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 */

	#ifdef CONFIG_CTRL_IFACE_UDP
	#define CTRL_IFACE_COOKIE_LEN 8
	#endif /* CONFIG_CTRL_IFACE_UDP */

	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 dl_list 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 */
	#ifdef CONFIG_ETH_P_OUI
	struct dl_list eth_p_oui; /* OUI Extended EtherType handlers */
	#endif /* CONFIG_ETH_P_OUI */
	int eloop_initialized;

	#ifdef CONFIG_DPP
	struct dpp_global *dpp;
	#ifdef CONFIG_DPP3
	struct os_reltime dpp_pb_time;
	struct os_reltime dpp_pb_announce_time;
	struct dpp_pb_info dpp_pb[DPP_PB_INFO_COUNT];
	struct dpp_bootstrap_info *dpp_pb_bi;
	u8 dpp_pb_c_nonce[DPP_MAX_NONCE_LEN];
	u8 dpp_pb_resp_hash[SHA256_MAC_LEN];
	struct os_reltime dpp_pb_last_resp;
	bool dpp_pb_result_indicated;
	char *dpp_pb_cmd;
	#endif /* CONFIG_DPP3 */
	#endif /* CONFIG_DPP */

	#ifdef CONFIG_CTRL_IFACE_UDP
	unsigned char ctrl_iface_cookie[CTRL_IFACE_COOKIE_LEN];
	#endif /* CONFIG_CTRL_IFACE_UDP */

	};

	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 {
	unsigned int freq;
	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_neighbor_entry {
	struct dl_list list;
	u8 bssid[ETH_ALEN];
	struct wpa_ssid_value ssid;
	struct wpabuf *nr;
	struct wpabuf *lci;
	struct wpabuf *civic;
	/* LCI update time */
	struct os_time lci_date;
	int stationary;
	u32 short_ssid;
	u8 bss_parameters;
	};

	struct hostapd_sae_commit_queue {
	struct dl_list list;
	int rssi;
	size_t len;
	u8 msg[];
	};

	/**
	* 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;
	u64 acct_session_id;
	struct radius_das_data *radius_das;

	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 eap_config *eap_cfg;

	struct rsn_preauth_interface *preauth_iface;
	struct os_reltime michael_mic_failure;
	int michael_mic_failures;
	int tkip_countermeasures;

	int ctrl_sock;
	struct dl_list ctrl_dst;

	void *ssl_ctx;
	void *eap_sim_db_priv;
	struct crypto_rsa_key *imsi_privacy_key;
	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;

	#ifdef CONFIG_IEEE80211R_AP
	struct dl_list l2_queue;
	struct dl_list l2_oui_queue;
	struct eth_p_oui_ctx *oui_pull;
	struct eth_p_oui_ctx *oui_resp;
	struct eth_p_oui_ctx *oui_push;
	struct eth_p_oui_ctx *oui_sreq;
	struct eth_p_oui_ctx *oui_sresp;
	#endif /* CONFIG_IEEE80211R_AP */

	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 */

	#ifdef CONFIG_MACSEC
	struct ieee802_1x_kay *kay;
	#endif /* CONFIG_MACSEC */

	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,
	const u8 *ip);
	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;

	#ifdef CONFIG_IEEE80211AX
	bool cca_in_progress;
	u8 cca_count;
	u8 cca_color;
	unsigned int cca_c_off_beacon;
	unsigned int cca_c_off_proberesp;
	struct os_reltime first_color_collision;
	struct os_reltime last_color_collision;
	u64 color_collision_bitmap;
	#endif /* CONFIG_IEEE80211AX */

	#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_PROXYARP
	struct l2_packet_data *sock_dhcp;
	struct l2_packet_data *sock_ndisc;
	bool x_snoop_initialized;
	#endif /* CONFIG_PROXYARP */
	#ifdef CONFIG_MESH
	int num_plinks;
	int max_plinks;
	void (mesh_sta_free_cb)(struct hostapd_data hapd,
	struct sta_info *sta);
	struct wpabuf *mesh_pending_auth;
	struct os_reltime mesh_pending_auth_time;
	u8 mesh_required_peer[ETH_ALEN];
	#endif /* CONFIG_MESH */

	#ifdef CONFIG_SQLITE
	struct hostapd_eap_user tmp_eap_user;
	#endif /* CONFIG_SQLITE */

	#ifdef CONFIG_SAE

	#define COMEBACK_KEY_SIZE 8
	#define COMEBACK_PENDING_IDX_SIZE 256

	/** Key used for generating SAE anti-clogging tokens */
	u8 comeback_key[COMEBACK_KEY_SIZE];
	struct os_reltime last_comeback_key_update;
	u16 comeback_idx;
	u16 comeback_pending_idx[COMEBACK_PENDING_IDX_SIZE];
	int dot11RSNASAERetransPeriod; /* msec */
	struct dl_list sae_commit_queue; /* struct hostapd_sae_commit_queue */
	#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;

	enum wpa_alg last_gtk_alg;
	int last_gtk_key_idx;
	u8 last_gtk[WPA_GTK_MAX_LEN];
	size_t last_gtk_len;

	enum wpa_alg last_igtk_alg;
	int last_igtk_key_idx;
	u8 last_igtk[WPA_IGTK_MAX_LEN];
	size_t last_igtk_len;

	enum wpa_alg last_bigtk_alg;
	int last_bigtk_key_idx;
	u8 last_bigtk[WPA_BIGTK_MAX_LEN];
	size_t last_bigtk_len;

	bool force_backlog_bytes;
	#endif /* CONFIG_TESTING_OPTIONS */

	#ifdef CONFIG_MBO
	unsigned int mbo_assoc_disallow;
	#endif /* CONFIG_MBO */

	struct dl_list nr_db;

	u8 beacon_req_token;
	u8 lci_req_token;
	u8 range_req_token;
	unsigned int lci_req_active:1;
	unsigned int range_req_active:1;

	int dhcp_sock; /* UDP socket used with the DHCP server */

	struct ptksa_cache *ptksa;

	#ifdef CONFIG_DPP
	int dpp_init_done;
	struct dpp_authentication *dpp_auth;
	u8 dpp_allowed_roles;
	int dpp_qr_mutual;
	int dpp_auth_ok_on_ack;
	int dpp_in_response_listen;
	struct gas_query_ap *gas;
	struct dpp_pkex *dpp_pkex;
	struct dpp_bootstrap_info *dpp_pkex_bi;
	char *dpp_pkex_code;
	size_t dpp_pkex_code_len;
	char *dpp_pkex_identifier;
	enum dpp_pkex_ver dpp_pkex_ver;
	char *dpp_pkex_auth_cmd;
	char *dpp_configurator_params;
	struct os_reltime dpp_last_init;
	struct os_reltime dpp_init_iter_start;
	unsigned int dpp_init_max_tries;
	unsigned int dpp_init_retry_time;
	unsigned int dpp_resp_wait_time;
	unsigned int dpp_resp_max_tries;
	unsigned int dpp_resp_retry_time;
	#ifdef CONFIG_DPP2
	struct wpabuf *dpp_presence_announcement;
	struct dpp_bootstrap_info *dpp_chirp_bi;
	int dpp_chirp_freq;
	int *dpp_chirp_freqs;
	int dpp_chirp_iter;
	int dpp_chirp_round;
	int dpp_chirp_scan_done;
	int dpp_chirp_listen;
	struct os_reltime dpp_relay_last_needs_ctrl;
	#endif /* CONFIG_DPP2 */
	#ifdef CONFIG_TESTING_OPTIONS
	char *dpp_config_obj_override;
	char *dpp_discovery_override;
	char *dpp_groups_override;
	unsigned int dpp_ignore_netaccesskey_mismatch:1;
	#endif /* CONFIG_TESTING_OPTIONS */
	#endif /* CONFIG_DPP */

	#ifdef CONFIG_AIRTIME_POLICY
	unsigned int num_backlogged_sta;
	unsigned int airtime_weight;
	#endif /* CONFIG_AIRTIME_POLICY */

	u8 last_1x_eapol_key_replay_counter[8];

	#ifdef CONFIG_SQLITE
	sqlite3 *rad_attr_db;
	#endif /* CONFIG_SQLITE */

	#ifdef CONFIG_CTRL_IFACE_UDP
	unsigned char ctrl_iface_cookie[CTRL_IFACE_COOKIE_LEN];
	#endif /* CONFIG_CTRL_IFACE_UDP */
	};


	struct hostapd_sta_info {
	struct dl_list list;
	u8 addr[ETH_ALEN];
	struct os_reltime last_seen;
	int ssi_signal;
	#ifdef CONFIG_TAXONOMY
	struct wpabuf *probe_ie_taxonomy;
	#endif /* CONFIG_TAXONOMY */
	};

	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
	};

	/**
	* 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 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;
	u64 drv_flags2;

	/*
	* 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;

	/* Background radar configuration */
	struct {
	int channel;
	int secondary_channel;
	int freq;
	int centr_freq_seg0_idx;
	int centr_freq_seg1_idx;
	/* Main chain is on temporary channel during
	* CAC detection on radar offchain.
	*/
	unsigned int temp_ch:1;
	/* CAC started on radar offchain */
	unsigned int cac_started:1;
	} radar_background;

	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;

	unsigned int chan_util_samples_sum;
	unsigned int chan_util_num_sample_periods;
	unsigned int chan_util_average;

	/* 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;

	u8 dfs_domain;
	#ifdef CONFIG_AIRTIME_POLICY
	unsigned int airtime_quantum;
	#endif /* CONFIG_AIRTIME_POLICY */

	/* Previous WMM element information */
	struct hostapd_wmm_ac_params prev_wmm[WMM_AC_NUM];

	/* Maximum number of interfaces supported for MBSSID advertisement */
	unsigned int mbssid_max_interfaces;
	/* Maximum profile periodicity for enhanced MBSSID advertisement */
	unsigned int ema_max_periodicity;

	int (enable_iface_cb)(struct hostapd_iface iface);
	int (disable_iface_cb)(struct hostapd_iface iface);
	};

	/* 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);
	void hostapd_reconfig_encryption(struct hostapd_data *hapd);
	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_alloc_iface(void);
	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_reload_bss_only(struct hostapd_data *bss);
	int hostapd_disable_iface(struct hostapd_iface *hapd_iface);
	void hostapd_bss_deinit_no_free(struct hostapd_data *hapd);
	void hostapd_free_hapd_data(struct hostapd_data *hapd);
	void hostapd_cleanup_iface_partial(struct hostapd_iface *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);
	void hostapd_chan_switch_config(struct hostapd_data *hapd,
	struct hostapd_freq_params *freq_params);
	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);
	int hostapd_owe_trans_get_info(struct hostapd_data *hapd);
	void hostapd_ocv_check_csa_sa_query(void eloop_ctx, void timeout_ctx);

	void hostapd_switch_color(struct hostapd_data *hapd, u64 bitmap);
	void hostapd_cleanup_cca_params(struct hostapd_data *hapd);

	/* 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?) */
	void hostapd_notify_assoc_fils_finish(struct hostapd_data *hapd,
	struct sta_info *sta);
	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,
	u16 punct_bitmap, int finished);
	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);
	void hostapd_event_sta_opmode_changed(struct hostapd_data hapd, const u8 addr,
	enum smps_mode smps_mode,
	enum chan_width chan_width, u8 rx_nss);

	#ifdef CONFIG_FST
	void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,
	struct fst_wpa_obj *iface_obj);
	#endif /* CONFIG_FST */

	int hostapd_set_acl(struct hostapd_data *hapd);
	struct hostapd_data * hostapd_mbssid_get_tx_bss(struct hostapd_data *hapd);
	int hostapd_mbssid_get_bss_index(struct hostapd_data *hapd);

	#endif /* HOSTAPD_H */