xref: /freebsd/contrib/wpa/src/ap/ap_list.h (revision f05cddf9)
1 /*
2  * hostapd / AP table
3  * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
4  * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5  * Copyright (c) 2006, Devicescape Software, Inc.
6  *
7  * This software may be distributed under the terms of the BSD license.
8  * See README for more details.
9  */
10 
11 #ifndef AP_LIST_H
12 #define AP_LIST_H
13 
14 struct ap_info {
15 	/* Note: next/prev pointers are updated whenever a new beacon is
16 	 * received because these are used to find the least recently used
17 	 * entries. iter_next/iter_prev are updated only when adding new BSSes
18 	 * and when removing old ones. These should be used when iterating
19 	 * through the table in a manner that allows beacons to be received
20 	 * during the iteration. */
21 	struct ap_info *next; /* next entry in AP list */
22 	struct ap_info *prev; /* previous entry in AP list */
23 	struct ap_info *hnext; /* next entry in hash table list */
24 	struct ap_info *iter_next; /* next entry in AP iteration list */
25 	struct ap_info *iter_prev; /* previous entry in AP iteration list */
26 	u8 addr[6];
27 	u16 beacon_int;
28 	u16 capability;
29 	u8 supported_rates[WLAN_SUPP_RATES_MAX];
30 	u8 ssid[33];
31 	size_t ssid_len;
32 	int wpa;
33 	int erp; /* ERP Info or -1 if ERP info element not present */
34 
35 	int channel;
36 	int datarate; /* in 100 kbps */
37 
38 	int ht_support;
39 
40 	unsigned int num_beacons; /* number of beacon frames received */
41 	os_time_t last_beacon;
42 
43 	int already_seen; /* whether API call AP-NEW has already fetched
44 			   * information about this AP */
45 };
46 
47 struct ieee802_11_elems;
48 struct hostapd_frame_info;
49 
50 struct ap_info * ap_get_ap(struct hostapd_iface *iface, const u8 *sta);
51 int ap_ap_for_each(struct hostapd_iface *iface,
52 		   int (*func)(struct ap_info *s, void *data), void *data);
53 void ap_list_process_beacon(struct hostapd_iface *iface,
54 			    const struct ieee80211_mgmt *mgmt,
55 			    struct ieee802_11_elems *elems,
56 			    struct hostapd_frame_info *fi);
57 #ifdef NEED_AP_MLME
58 int ap_list_init(struct hostapd_iface *iface);
59 void ap_list_deinit(struct hostapd_iface *iface);
60 #else /* NEED_AP_MLME */
61 static inline int ap_list_init(struct hostapd_iface *iface)
62 {
63 	return 0;
64 }
65 
66 static inline void ap_list_deinit(struct hostapd_iface *iface)
67 {
68 }
69 #endif /* NEED_AP_MLME */
70 
71 #endif /* AP_LIST_H */
72