1 /* 2 * BSS table 3 * Copyright (c) 2009-2010, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #ifndef BSS_H 10 #define BSS_H 11 12 struct wpa_scan_res; 13 14 #define WPA_BSS_QUAL_INVALID BIT(0) 15 #define WPA_BSS_NOISE_INVALID BIT(1) 16 #define WPA_BSS_LEVEL_INVALID BIT(2) 17 #define WPA_BSS_LEVEL_DBM BIT(3) 18 #define WPA_BSS_AUTHENTICATED BIT(4) 19 #define WPA_BSS_ASSOCIATED BIT(5) 20 #define WPA_BSS_ANQP_FETCH_TRIED BIT(6) 21 22 #define WPA_BSS_MASK_ALL 0xFFFFFFFF 23 #define WPA_BSS_MASK_ID BIT(0) 24 #define WPA_BSS_MASK_BSSID BIT(1) 25 #define WPA_BSS_MASK_FREQ BIT(2) 26 #define WPA_BSS_MASK_BEACON_INT BIT(3) 27 #define WPA_BSS_MASK_CAPABILITIES BIT(4) 28 #define WPA_BSS_MASK_QUAL BIT(5) 29 #define WPA_BSS_MASK_NOISE BIT(6) 30 #define WPA_BSS_MASK_LEVEL BIT(7) 31 #define WPA_BSS_MASK_TSF BIT(8) 32 #define WPA_BSS_MASK_AGE BIT(9) 33 #define WPA_BSS_MASK_IE BIT(10) 34 #define WPA_BSS_MASK_FLAGS BIT(11) 35 #define WPA_BSS_MASK_SSID BIT(12) 36 #define WPA_BSS_MASK_WPS_SCAN BIT(13) 37 #define WPA_BSS_MASK_P2P_SCAN BIT(14) 38 #define WPA_BSS_MASK_INTERNETW BIT(15) 39 40 /** 41 * struct wpa_bss - BSS table 42 * @list: List entry for struct wpa_supplicant::bss 43 * @list_id: List entry for struct wpa_supplicant::bss_id 44 * @id: Unique identifier for this BSS entry 45 * @scan_miss_count: Number of counts without seeing this BSS 46 * @flags: information flags about the BSS/IBSS (WPA_BSS_*) 47 * @last_update_idx: Index of the last scan update 48 * @bssid: BSSID 49 * @freq: frequency of the channel in MHz (e.g., 2412 = channel 1) 50 * @beacon_int: beacon interval in TUs (host byte order) 51 * @caps: capability information field in host byte order 52 * @qual: signal quality 53 * @noise: noise level 54 * @level: signal level 55 * @tsf: Timestamp of last Beacon/Probe Response frame 56 * @last_update: Time of the last update (i.e., Beacon or Probe Response RX) 57 * @ie_len: length of the following IE field in octets (from Probe Response) 58 * @beacon_ie_len: length of the following Beacon IE field in octets 59 * 60 * This structure is used to store information about neighboring BSSes in 61 * generic format. It is mainly updated based on scan results from the driver. 62 */ 63 struct wpa_bss { 64 struct dl_list list; 65 struct dl_list list_id; 66 unsigned int id; 67 unsigned int scan_miss_count; 68 unsigned int last_update_idx; 69 unsigned int flags; 70 u8 bssid[ETH_ALEN]; 71 u8 ssid[32]; 72 size_t ssid_len; 73 int freq; 74 u16 beacon_int; 75 u16 caps; 76 int qual; 77 int noise; 78 int level; 79 u64 tsf; 80 struct os_time last_update; 81 #ifdef CONFIG_INTERWORKING 82 struct wpabuf *anqp_venue_name; 83 struct wpabuf *anqp_network_auth_type; 84 struct wpabuf *anqp_roaming_consortium; 85 struct wpabuf *anqp_ip_addr_type_availability; 86 struct wpabuf *anqp_nai_realm; 87 struct wpabuf *anqp_3gpp; 88 struct wpabuf *anqp_domain_name; 89 #endif /* CONFIG_INTERWORKING */ 90 size_t ie_len; 91 size_t beacon_ie_len; 92 /* followed by ie_len octets of IEs */ 93 /* followed by beacon_ie_len octets of IEs */ 94 }; 95 96 void wpa_bss_update_start(struct wpa_supplicant *wpa_s); 97 void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s, 98 struct wpa_scan_res *res); 99 void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info, 100 int new_scan); 101 int wpa_bss_init(struct wpa_supplicant *wpa_s); 102 void wpa_bss_deinit(struct wpa_supplicant *wpa_s); 103 void wpa_bss_flush(struct wpa_supplicant *wpa_s); 104 void wpa_bss_flush_by_age(struct wpa_supplicant *wpa_s, int age); 105 struct wpa_bss * wpa_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid, 106 const u8 *ssid, size_t ssid_len); 107 struct wpa_bss * wpa_bss_get_bssid(struct wpa_supplicant *wpa_s, 108 const u8 *bssid); 109 struct wpa_bss * wpa_bss_get_p2p_dev_addr(struct wpa_supplicant *wpa_s, 110 const u8 *dev_addr); 111 struct wpa_bss * wpa_bss_get_id(struct wpa_supplicant *wpa_s, unsigned int id); 112 const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie); 113 const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type); 114 struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss, 115 u32 vendor_type); 116 int wpa_bss_get_max_rate(const struct wpa_bss *bss); 117 int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates); 118 119 #endif /* BSS_H */ 120
