hostapd.h

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#ifndef HOSTAPD_H
#define HOSTAPD_H

#include "common/defs.h"

struct wpa_driver_ops;
struct wpa_ctrl_dst;
struct radius_server_data;
struct upnp_wps_device_sm;
struct hostapd_data;
struct sta_info;
struct hostap_sta_driver_data;
struct ieee80211_ht_capabilities;
struct full_dynamic_vlan;
enum wps_event;
union wps_event_data;

struct hapd_interfaces {
        size_t count;
        struct hostapd_iface **iface;
};


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 */
};


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 */

        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 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;
        time_t 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;

        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;
#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;

        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;

#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 */
};


struct hostapd_iface {
        struct hapd_interfaces *interfaces;
        void *owner;
        int (*reload_config)(struct hostapd_iface *iface);
        struct hostapd_config * (*config_read_cb)(const char *config_fname);
        char *config_fname;
        struct hostapd_config *conf;

        size_t num_bss;
        struct hostapd_data **bss;

        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];
        struct ap_info *ap_iter_list;

        unsigned int drv_flags;

        /*
         * A bitmap of supported protocols for probe response offload. See
         * struct wpa_driver_capa in driver.h
         */
        unsigned int probe_resp_offloads;

        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;

        /* Overlapping BSS information */
        int olbc_ht;

        u16 ht_op_mode;
        void (*scan_cb)(struct hostapd_iface *iface);

        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);
};

/* 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);
void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
                           int reassoc);

/* 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);
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);

#endif /* HOSTAPD_H */