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Commit | Line | Data |
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83922c2d JM |
1 | /* |
2 | * BSS table | |
1d747e2a | 3 | * Copyright (c) 2009-2015, 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; | |
8c4a1026 | 43 | struct dl_list anqp_elems; /* list of struct wpa_bss_anqp_elem */ |
476aed35 JM |
44 | #endif /* CONFIG_INTERWORKING */ |
45 | #ifdef CONFIG_HS20 | |
185ada47 | 46 | struct wpabuf *hs20_capability_list; |
476aed35 JM |
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; | |
1d2215fc | 51 | struct wpabuf *hs20_osu_providers_list; |
476aed35 JM |
52 | #endif /* CONFIG_HS20 */ |
53 | }; | |
54 | ||
83922c2d JM |
55 | /** |
56 | * struct wpa_bss - BSS table | |
83922c2d JM |
57 | * |
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. | |
60 | */ | |
61 | struct wpa_bss { | |
2c09af30 | 62 | /** List entry for struct wpa_supplicant::bss */ |
83922c2d | 63 | struct dl_list list; |
2c09af30 | 64 | /** List entry for struct wpa_supplicant::bss_id */ |
d4bf8f13 | 65 | struct dl_list list_id; |
2c09af30 | 66 | /** Unique identifier for this BSS entry */ |
83922c2d | 67 | unsigned int id; |
2c09af30 | 68 | /** Number of counts without seeing this BSS */ |
83922c2d | 69 | unsigned int scan_miss_count; |
2c09af30 | 70 | /** Index of the last scan update */ |
83922c2d | 71 | unsigned int last_update_idx; |
2c09af30 | 72 | /** Information flags about the BSS/IBSS (WPA_BSS_*) */ |
83922c2d | 73 | unsigned int flags; |
2c09af30 | 74 | /** BSSID */ |
83922c2d | 75 | u8 bssid[ETH_ALEN]; |
2c09af30 | 76 | /** HESSID */ |
c739d7e9 | 77 | u8 hessid[ETH_ALEN]; |
2c09af30 | 78 | /** SSID */ |
d9d1b952 | 79 | u8 ssid[SSID_MAX_LEN]; |
2c09af30 | 80 | /** Length of SSID */ |
83922c2d | 81 | size_t ssid_len; |
2c09af30 | 82 | /** Frequency of the channel in MHz (e.g., 2412 = channel 1) */ |
83922c2d | 83 | int freq; |
2c09af30 | 84 | /** Beacon interval in TUs (host byte order) */ |
83922c2d | 85 | u16 beacon_int; |
2c09af30 | 86 | /** Capability information field in host byte order */ |
83922c2d | 87 | u16 caps; |
2c09af30 | 88 | /** Signal quality */ |
83922c2d | 89 | int qual; |
2c09af30 | 90 | /** Noise level */ |
83922c2d | 91 | int noise; |
2c09af30 | 92 | /** Signal level */ |
83922c2d | 93 | int level; |
2c09af30 | 94 | /** Timestamp of last Beacon/Probe Response frame */ |
83922c2d | 95 | u64 tsf; |
2c09af30 | 96 | /** Time of the last update (i.e., Beacon or Probe Response RX) */ |
acb69cec | 97 | struct os_reltime last_update; |
1d747e2a JM |
98 | /** Estimated throughput in kbps */ |
99 | unsigned int est_throughput; | |
100 | /** Signal-to-noise ratio in dB */ | |
101 | int snr; | |
2c09af30 | 102 | /** ANQP data */ |
476aed35 | 103 | struct wpa_bss_anqp *anqp; |
2c09af30 | 104 | /** Length of the following IE field in octets (from Probe Response) */ |
83922c2d | 105 | size_t ie_len; |
2c09af30 | 106 | /** Length of the following Beacon IE field in octets */ |
8c090654 | 107 | size_t beacon_ie_len; |
83922c2d | 108 | /* followed by ie_len octets of IEs */ |
8c090654 | 109 | /* followed by beacon_ie_len octets of IEs */ |
83922c2d JM |
110 | }; |
111 | ||
112 | void wpa_bss_update_start(struct wpa_supplicant *wpa_s); | |
113 | void wpa_bss_update_scan_res(struct wpa_supplicant *wpa_s, | |
c5f10e80 | 114 | struct wpa_scan_res *res, |
acb69cec | 115 | struct os_reltime *fetch_time); |
8d923a4a JM |
116 | void wpa_bss_update_end(struct wpa_supplicant *wpa_s, struct scan_info *info, |
117 | int new_scan); | |
83922c2d JM |
118 | int wpa_bss_init(struct wpa_supplicant *wpa_s); |
119 | void wpa_bss_deinit(struct wpa_supplicant *wpa_s); | |
2b65b30d SL |
120 | void wpa_bss_flush(struct wpa_supplicant *wpa_s); |
121 | void wpa_bss_flush_by_age(struct wpa_supplicant *wpa_s, int age); | |
59f2caa9 JM |
122 | struct wpa_bss * wpa_bss_get(struct wpa_supplicant *wpa_s, const u8 *bssid, |
123 | const u8 *ssid, size_t ssid_len); | |
d4bf8f13 JM |
124 | struct wpa_bss * wpa_bss_get_bssid(struct wpa_supplicant *wpa_s, |
125 | const u8 *bssid); | |
702621e6 JM |
126 | struct wpa_bss * wpa_bss_get_bssid_latest(struct wpa_supplicant *wpa_s, |
127 | const u8 *bssid); | |
0a70f34f JM |
128 | struct wpa_bss * wpa_bss_get_p2p_dev_addr(struct wpa_supplicant *wpa_s, |
129 | const u8 *dev_addr); | |
d4bf8f13 | 130 | struct wpa_bss * wpa_bss_get_id(struct wpa_supplicant *wpa_s, unsigned int id); |
9f42d49c AS |
131 | struct wpa_bss * wpa_bss_get_id_range(struct wpa_supplicant *wpa_s, |
132 | unsigned int idf, unsigned int idl); | |
d4bf8f13 JM |
133 | const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie); |
134 | const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type); | |
bb50ae43 JM |
135 | const u8 * wpa_bss_get_vendor_ie_beacon(const struct wpa_bss *bss, |
136 | u32 vendor_type); | |
d4bf8f13 JM |
137 | struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss, |
138 | u32 vendor_type); | |
cf8baca6 JM |
139 | struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss, |
140 | u32 vendor_type); | |
99a6a63f | 141 | int wpa_bss_get_max_rate(const struct wpa_bss *bss); |
75d328af | 142 | int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates); |
476aed35 | 143 | struct wpa_bss_anqp * wpa_bss_anqp_alloc(void); |
485e3a92 | 144 | int wpa_bss_anqp_unshare_alloc(struct wpa_bss *bss); |
83922c2d | 145 | |
e403ba85 BS |
146 | static inline int bss_is_dmg(const struct wpa_bss *bss) |
147 | { | |
148 | return bss->freq > 45000; | |
149 | } | |
150 | ||
b9074912 LD |
151 | /** |
152 | * Test whether a BSS is a PBSS. | |
153 | * This checks whether a BSS is a DMG-band PBSS. PBSS is used for P2P DMG | |
154 | * network. | |
155 | */ | |
156 | static inline int bss_is_pbss(struct wpa_bss *bss) | |
157 | { | |
158 | return bss_is_dmg(bss) && | |
159 | (bss->caps & IEEE80211_CAP_DMG_MASK) == IEEE80211_CAP_DMG_PBSS; | |
160 | } | |
161 | ||
71d77adb MM |
162 | static inline void wpa_bss_update_level(struct wpa_bss *bss, int new_level) |
163 | { | |
164 | if (bss != NULL && new_level < 0) | |
165 | bss->level = new_level; | |
166 | } | |
167 | ||
83922c2d | 168 | #endif /* BSS_H */ |