contrib/hostapd-0.5.8/ap_list.h

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