3 * Copyright (c) 2009-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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)
23 * struct wpa_bss_anqp - ANQP data for a BSS entry (struct wpa_bss)
26 /** Number of BSS entries referring to this ANQP data instance */
28 #ifdef CONFIG_INTERWORKING
29 struct wpabuf *capability_list;
30 struct wpabuf *venue_name;
31 struct wpabuf *network_auth_type;
32 struct wpabuf *roaming_consortium;
33 struct wpabuf *ip_addr_type_availability;
34 struct wpabuf *nai_realm;
35 struct wpabuf *anqp_3gpp;
36 struct wpabuf *domain_name;
37 #endif /* CONFIG_INTERWORKING */
39 struct wpabuf *hs20_capability_list;
40 struct wpabuf *hs20_operator_friendly_name;
41 struct wpabuf *hs20_wan_metrics;
42 struct wpabuf *hs20_connection_capability;
43 struct wpabuf *hs20_operating_class;
44 struct wpabuf *hs20_osu_providers_list;
45 #endif /* CONFIG_HS20 */
49 * struct wpa_bss - BSS table
51 * This structure is used to store information about neighboring BSSes in
52 * generic format. It is mainly updated based on scan results from the driver.
55 /** List entry for struct wpa_supplicant::bss */
57 /** List entry for struct wpa_supplicant::bss_id */
58 struct dl_list list_id;
59 /** Unique identifier for this BSS entry */
61 /** Number of counts without seeing this BSS */
62 unsigned int scan_miss_count;
63 /** Index of the last scan update */
64 unsigned int last_update_idx;
65 /** Information flags about the BSS/IBSS (WPA_BSS_*) */
72 u8 ssid[SSID_MAX_LEN];
75 /** Frequency of the channel in MHz (e.g., 2412 = channel 1) */
77 /** Beacon interval in TUs (host byte order) */
79 /** Capability information field in host byte order */
87 /** Timestamp of last Beacon/Probe Response frame */
89 /** Time of the last update (i.e., Beacon or Probe Response RX) */
90 struct os_reltime last_update;
91 /** Estimated throughput in kbps */
92 unsigned int est_throughput;
93 /** Signal-to-noise ratio in dB */
96 struct wpa_bss_anqp *anqp;
97 /** Length of the following IE field in octets (from Probe Response) */
99 /** Length of the following Beacon IE field in octets */
100 size_t beacon_ie_len;
101 /* followed by ie_len octets of IEs */
102 /* followed by beacon_ie_len octets of IEs */
105 void wpa_bss_update_start(struct wpa_supplicant *wpa_s);
106 void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s,
107 struct wpa_scan_res *res,
108 struct os_reltime *fetch_time);
109 void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info,
111 int wpa_bss_init(struct wpa_supplicant *wpa_s);
112 void wpa_bss_deinit(struct wpa_supplicant *wpa_s);
113 void wpa_bss_flush(struct wpa_supplicant *wpa_s);
114 void wpa_bss_flush_by_age(struct wpa_supplicant *wpa_s, int age);
115 struct wpa_bss * wpa_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid,
116 const u8 *ssid, size_t ssid_len);
117 struct wpa_bss * wpa_bss_get_bssid(struct wpa_supplicant *wpa_s,
119 struct wpa_bss * wpa_bss_get_bssid_latest(struct wpa_supplicant *wpa_s,
121 struct wpa_bss * wpa_bss_get_p2p_dev_addr(struct wpa_supplicant *wpa_s,
123 struct wpa_bss * wpa_bss_get_id(struct wpa_supplicant *wpa_s, unsigned int id);
124 struct wpa_bss * wpa_bss_get_id_range(struct wpa_supplicant *wpa_s,
125 unsigned int idf, unsigned int idl);
126 const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie);
127 const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type);
128 const u8 * wpa_bss_get_vendor_ie_beacon(const struct wpa_bss *bss,
130 struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
132 struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
134 int wpa_bss_get_max_rate(const struct wpa_bss *bss);
135 int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates);
136 struct wpa_bss_anqp * wpa_bss_anqp_alloc(void);
137 int wpa_bss_anqp_unshare_alloc(struct wpa_bss *bss);
139 static inline int bss_is_dmg(const struct wpa_bss *bss)
141 return bss->freq > 45000;
144 static inline void wpa_bss_update_level(struct wpa_bss *bss, int new_level)
146 if (bss != NULL && new_level < 0)
147 bss->level = new_level;