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)
22 struct wpa_bss_anqp_elem {
25 struct wpabuf *payload;
29 * struct wpa_bss_anqp - ANQP data for a BSS entry (struct wpa_bss)
32 /** Number of BSS entries referring to this ANQP data instance */
34 #ifdef CONFIG_INTERWORKING
35 struct wpabuf *capability_list;
36 struct wpabuf *venue_name;
37 struct wpabuf *network_auth_type;
38 struct wpabuf *roaming_consortium;
39 struct wpabuf *ip_addr_type_availability;
40 struct wpabuf *nai_realm;
41 struct wpabuf *anqp_3gpp;
42 struct wpabuf *domain_name;
43 struct dl_list anqp_elems; /* list of struct wpa_bss_anqp_elem */
44 #endif /* CONFIG_INTERWORKING */
46 struct wpabuf *hs20_capability_list;
47 struct wpabuf *hs20_operator_friendly_name;
48 struct wpabuf *hs20_wan_metrics;
49 struct wpabuf *hs20_connection_capability;
50 struct wpabuf *hs20_operating_class;
51 struct wpabuf *hs20_osu_providers_list;
52 #endif /* CONFIG_HS20 */
56 * struct wpa_bss - BSS table
58 * This structure is used to store information about neighboring BSSes in
59 * generic format. It is mainly updated based on scan results from the driver.
62 /** List entry for struct wpa_supplicant::bss */
64 /** List entry for struct wpa_supplicant::bss_id */
65 struct dl_list list_id;
66 /** Unique identifier for this BSS entry */
68 /** Number of counts without seeing this BSS */
69 unsigned int scan_miss_count;
70 /** Index of the last scan update */
71 unsigned int last_update_idx;
72 /** Information flags about the BSS/IBSS (WPA_BSS_*) */
79 u8 ssid[SSID_MAX_LEN];
82 /** Frequency of the channel in MHz (e.g., 2412 = channel 1) */
84 /** Beacon interval in TUs (host byte order) */
86 /** Capability information field in host byte order */
94 /** Timestamp of last Beacon/Probe Response frame */
96 /** Time of the last update (i.e., Beacon or Probe Response RX) */
97 struct os_reltime last_update;
98 /** Estimated throughput in kbps */
99 unsigned int est_throughput;
100 /** Signal-to-noise ratio in dB */
103 struct wpa_bss_anqp *anqp;
104 /** Length of the following IE field in octets (from Probe Response) */
106 /** Length of the following Beacon IE field in octets */
107 size_t beacon_ie_len;
108 /* followed by ie_len octets of IEs */
109 /* followed by beacon_ie_len octets of IEs */
112 void wpa_bss_update_start(struct wpa_supplicant *wpa_s);
113 void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s,
114 struct wpa_scan_res *res,
115 struct os_reltime *fetch_time);
116 void wpa_bss_remove(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
118 void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info,
120 int wpa_bss_init(struct wpa_supplicant *wpa_s);
121 void wpa_bss_deinit(struct wpa_supplicant *wpa_s);
122 void wpa_bss_flush(struct wpa_supplicant *wpa_s);
123 void wpa_bss_flush_by_age(struct wpa_supplicant *wpa_s, int age);
124 struct wpa_bss * wpa_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid,
125 const u8 *ssid, size_t ssid_len);
126 struct wpa_bss * wpa_bss_get_bssid(struct wpa_supplicant *wpa_s,
128 struct wpa_bss * wpa_bss_get_bssid_latest(struct wpa_supplicant *wpa_s,
130 struct wpa_bss * wpa_bss_get_p2p_dev_addr(struct wpa_supplicant *wpa_s,
132 struct wpa_bss * wpa_bss_get_id(struct wpa_supplicant *wpa_s, unsigned int id);
133 struct wpa_bss * wpa_bss_get_id_range(struct wpa_supplicant *wpa_s,
134 unsigned int idf, unsigned int idl);
135 const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie);
136 const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type);
137 const u8 * wpa_bss_get_vendor_ie_beacon(const struct wpa_bss *bss,
139 struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,
141 struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,
143 int wpa_bss_get_max_rate(const struct wpa_bss *bss);
144 int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates);
145 struct wpa_bss_anqp * wpa_bss_anqp_alloc(void);
146 int wpa_bss_anqp_unshare_alloc(struct wpa_bss *bss);
148 static inline int bss_is_dmg(const struct wpa_bss *bss)
150 return bss->freq > 45000;
154 * Test whether a BSS is a PBSS.
155 * This checks whether a BSS is a DMG-band PBSS. PBSS is used for P2P DMG
158 static inline int bss_is_pbss(struct wpa_bss *bss)
160 return bss_is_dmg(bss) &&
161 (bss->caps & IEEE80211_CAP_DMG_MASK) == IEEE80211_CAP_DMG_PBSS;
164 static inline void wpa_bss_update_level(struct wpa_bss *bss, int new_level)
166 if (bss != NULL && new_level < 0)
167 bss->level = new_level;