]>
Commit | Line | Data |
---|---|---|
83922c2d JM |
1 | /* |
2 | * BSS table | |
ed87f6a8 | 3 | * Copyright (c) 2009-2019, Jouni Malinen <j@w1.fi> |
83922c2d | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
83922c2d JM |
7 | */ |
8 | ||
9 | #ifndef BSS_H | |
10 | #define BSS_H | |
11 | ||
a1fd2ce5 JM |
12 | struct wpa_scan_res; |
13 | ||
83922c2d JM |
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) | |
afc064fe | 20 | #define WPA_BSS_ANQP_FETCH_TRIED BIT(6) |
83922c2d | 21 | |
8c4a1026 JM |
22 | struct wpa_bss_anqp_elem { |
23 | struct dl_list list; | |
24 | u16 infoid; | |
25 | struct wpabuf *payload; | |
26 | }; | |
27 | ||
2c09af30 JM |
28 | /** |
29 | * struct wpa_bss_anqp - ANQP data for a BSS entry (struct wpa_bss) | |
30 | */ | |
476aed35 | 31 | struct wpa_bss_anqp { |
2c09af30 | 32 | /** Number of BSS entries referring to this ANQP data instance */ |
476aed35 JM |
33 | unsigned int users; |
34 | #ifdef CONFIG_INTERWORKING | |
5ce6ac11 | 35 | struct wpabuf *capability_list; |
476aed35 JM |
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; | |
9cad6186 | 43 | struct wpabuf *fils_realm_info; |
8c4a1026 | 44 | struct dl_list anqp_elems; /* list of struct wpa_bss_anqp_elem */ |
476aed35 JM |
45 | #endif /* CONFIG_INTERWORKING */ |
46 | #ifdef CONFIG_HS20 | |
185ada47 | 47 | struct wpabuf *hs20_capability_list; |
476aed35 JM |
48 | struct wpabuf *hs20_operator_friendly_name; |
49 | struct wpabuf *hs20_wan_metrics; | |
50 | struct wpabuf *hs20_connection_capability; | |
51 | struct wpabuf *hs20_operating_class; | |
1d2215fc | 52 | struct wpabuf *hs20_osu_providers_list; |
6a8a04d7 | 53 | struct wpabuf *hs20_operator_icon_metadata; |
baf4c863 | 54 | struct wpabuf *hs20_osu_providers_nai_list; |
476aed35 JM |
55 | #endif /* CONFIG_HS20 */ |
56 | }; | |
57 | ||
83922c2d JM |
58 | /** |
59 | * struct wpa_bss - BSS table | |
83922c2d JM |
60 | * |
61 | * This structure is used to store information about neighboring BSSes in | |
62 | * generic format. It is mainly updated based on scan results from the driver. | |
63 | */ | |
64 | struct wpa_bss { | |
2c09af30 | 65 | /** List entry for struct wpa_supplicant::bss */ |
83922c2d | 66 | struct dl_list list; |
2c09af30 | 67 | /** List entry for struct wpa_supplicant::bss_id */ |
d4bf8f13 | 68 | struct dl_list list_id; |
2c09af30 | 69 | /** Unique identifier for this BSS entry */ |
83922c2d | 70 | unsigned int id; |
2c09af30 | 71 | /** Number of counts without seeing this BSS */ |
83922c2d | 72 | unsigned int scan_miss_count; |
2c09af30 | 73 | /** Index of the last scan update */ |
83922c2d | 74 | unsigned int last_update_idx; |
2c09af30 | 75 | /** Information flags about the BSS/IBSS (WPA_BSS_*) */ |
83922c2d | 76 | unsigned int flags; |
2c09af30 | 77 | /** BSSID */ |
83922c2d | 78 | u8 bssid[ETH_ALEN]; |
2c09af30 | 79 | /** HESSID */ |
c739d7e9 | 80 | u8 hessid[ETH_ALEN]; |
2c09af30 | 81 | /** SSID */ |
d9d1b952 | 82 | u8 ssid[SSID_MAX_LEN]; |
2c09af30 | 83 | /** Length of SSID */ |
83922c2d | 84 | size_t ssid_len; |
2c09af30 | 85 | /** Frequency of the channel in MHz (e.g., 2412 = channel 1) */ |
83922c2d | 86 | int freq; |
2c09af30 | 87 | /** Beacon interval in TUs (host byte order) */ |
83922c2d | 88 | u16 beacon_int; |
2c09af30 | 89 | /** Capability information field in host byte order */ |
83922c2d | 90 | u16 caps; |
2c09af30 | 91 | /** Signal quality */ |
83922c2d | 92 | int qual; |
2c09af30 | 93 | /** Noise level */ |
83922c2d | 94 | int noise; |
2c09af30 | 95 | /** Signal level */ |
83922c2d | 96 | int level; |
2c09af30 | 97 | /** Timestamp of last Beacon/Probe Response frame */ |
83922c2d | 98 | u64 tsf; |
2c09af30 | 99 | /** Time of the last update (i.e., Beacon or Probe Response RX) */ |
acb69cec | 100 | struct os_reltime last_update; |
1d747e2a JM |
101 | /** Estimated throughput in kbps */ |
102 | unsigned int est_throughput; | |
103 | /** Signal-to-noise ratio in dB */ | |
104 | int snr; | |
2c09af30 | 105 | /** ANQP data */ |
476aed35 | 106 | struct wpa_bss_anqp *anqp; |
2c09af30 | 107 | /** Length of the following IE field in octets (from Probe Response) */ |
83922c2d | 108 | size_t ie_len; |
2c09af30 | 109 | /** Length of the following Beacon IE field in octets */ |
8c090654 | 110 | size_t beacon_ie_len; |
83922c2d | 111 | /* followed by ie_len octets of IEs */ |
8c090654 | 112 | /* followed by beacon_ie_len octets of IEs */ |
83922c2d JM |
113 | }; |
114 | ||
115 | void wpa_bss_update_start(struct wpa_supplicant *wpa_s); | |
116 | void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s, | |
c5f10e80 | 117 | struct wpa_scan_res *res, |
acb69cec | 118 | struct os_reltime *fetch_time); |
1ac38863 DS |
119 | void wpa_bss_remove(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, |
120 | const char *reason); | |
8d923a4a JM |
121 | void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info, |
122 | int new_scan); | |
83922c2d JM |
123 | int wpa_bss_init(struct wpa_supplicant *wpa_s); |
124 | void wpa_bss_deinit(struct wpa_supplicant *wpa_s); | |
2b65b30d SL |
125 | void wpa_bss_flush(struct wpa_supplicant *wpa_s); |
126 | void wpa_bss_flush_by_age(struct wpa_supplicant *wpa_s, int age); | |
59f2caa9 JM |
127 | struct wpa_bss * wpa_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid, |
128 | const u8 *ssid, size_t ssid_len); | |
d4bf8f13 JM |
129 | struct wpa_bss * wpa_bss_get_bssid(struct wpa_supplicant *wpa_s, |
130 | const u8 *bssid); | |
702621e6 JM |
131 | struct wpa_bss * wpa_bss_get_bssid_latest(struct wpa_supplicant *wpa_s, |
132 | const u8 *bssid); | |
0a70f34f JM |
133 | struct wpa_bss * wpa_bss_get_p2p_dev_addr(struct wpa_supplicant *wpa_s, |
134 | const u8 *dev_addr); | |
d4bf8f13 | 135 | struct wpa_bss * wpa_bss_get_id(struct wpa_supplicant *wpa_s, unsigned int id); |
9f42d49c AS |
136 | struct wpa_bss * wpa_bss_get_id_range(struct wpa_supplicant *wpa_s, |
137 | unsigned int idf, unsigned int idl); | |
d4bf8f13 JM |
138 | const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie); |
139 | const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type); | |
bb50ae43 JM |
140 | const u8 * wpa_bss_get_vendor_ie_beacon(const struct wpa_bss *bss, |
141 | u32 vendor_type); | |
d4bf8f13 JM |
142 | struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss, |
143 | u32 vendor_type); | |
cf8baca6 JM |
144 | struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss, |
145 | u32 vendor_type); | |
99a6a63f | 146 | int wpa_bss_get_max_rate(const struct wpa_bss *bss); |
75d328af | 147 | int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates); |
476aed35 | 148 | struct wpa_bss_anqp * wpa_bss_anqp_alloc(void); |
485e3a92 | 149 | int wpa_bss_anqp_unshare_alloc(struct wpa_bss *bss); |
869af307 | 150 | const u8 * wpa_bss_get_fils_cache_id(struct wpa_bss *bss); |
ed87f6a8 | 151 | int wpa_bss_ext_capab(const struct wpa_bss *bss, unsigned int capab); |
83922c2d | 152 | |
e403ba85 BS |
153 | static inline int bss_is_dmg(const struct wpa_bss *bss) |
154 | { | |
155 | return bss->freq > 45000; | |
156 | } | |
157 | ||
b9074912 LD |
158 | /** |
159 | * Test whether a BSS is a PBSS. | |
160 | * This checks whether a BSS is a DMG-band PBSS. PBSS is used for P2P DMG | |
161 | * network. | |
162 | */ | |
163 | static inline int bss_is_pbss(struct wpa_bss *bss) | |
164 | { | |
165 | return bss_is_dmg(bss) && | |
166 | (bss->caps & IEEE80211_CAP_DMG_MASK) == IEEE80211_CAP_DMG_PBSS; | |
167 | } | |
168 | ||
71d77adb MM |
169 | static inline void wpa_bss_update_level(struct wpa_bss *bss, int new_level) |
170 | { | |
171 | if (bss != NULL && new_level < 0) | |
172 | bss->level = new_level; | |
173 | } | |
174 | ||
d7342014 JM |
175 | void calculate_update_time(const struct os_reltime *fetch_time, |
176 | unsigned int age_ms, | |
177 | struct os_reltime *update_time); | |
178 | ||
83922c2d | 179 | #endif /* BSS_H */ |