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* hostapd / AP table
* Copyright (c) 2002-2003, Jouni Malinen <>
* Copyright (c) 2003-2004, Instant802 Networks, Inc.
* Copyright (c) 2006, Devicescape Software, Inc.
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#ifndef AP_LIST_H
#define AP_LIST_H
struct ap_info {
/* Note: next/prev pointers are updated whenever a new beacon is
* received because these are used to find the least recently used
* entries. iter_next/iter_prev are updated only when adding new BSSes
* and when removing old ones. These should be used when iterating
* through the table in a manner that allows beacons to be received
* during the iteration. */
struct ap_info *next; /* next entry in AP list */
struct ap_info *prev; /* previous entry in AP list */
struct ap_info *hnext; /* next entry in hash table list */
struct ap_info *iter_next; /* next entry in AP iteration list */
struct ap_info *iter_prev; /* previous entry in AP iteration list */
u8 addr[6];
u16 beacon_int;
u16 capability;
u8 supported_rates[WLAN_SUPP_RATES_MAX];
u8 ssid[33];
size_t ssid_len;
int wpa;
int erp; /* ERP Info or -1 if ERP info element not present */
int channel;
int datarate; /* in 100 kbps */
int ht_support;
unsigned int num_beacons; /* number of beacon frames received */
os_time_t last_beacon;
int already_seen; /* whether API call AP-NEW has already fetched
* information about this AP */
struct ieee802_11_elems;
struct hostapd_frame_info;
struct ap_info * ap_get_ap(struct hostapd_iface *iface, const u8 *sta);
int ap_ap_for_each(struct hostapd_iface *iface,
int (*func)(struct ap_info *s, void *data), void *data);
void ap_list_process_beacon(struct hostapd_iface *iface,
const struct ieee80211_mgmt *mgmt,
struct ieee802_11_elems *elems,
struct hostapd_frame_info *fi);
int ap_list_init(struct hostapd_iface *iface);
void ap_list_deinit(struct hostapd_iface *iface);
#else /* NEED_AP_MLME */
static inline int ap_list_init(struct hostapd_iface *iface)
return 0;
static inline void ap_list_deinit(struct hostapd_iface *iface)
#endif /* NEED_AP_MLME */
#endif /* AP_LIST_H */