1 /*
2 * hostapd / Station table
3 * Copyright (c) 2002-2011, Jouni Malinen <j@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 STA_INFO_H
10 #define STA_INFO_H
11
12 /* STA flags */
13 #define WLAN_STA_AUTH BIT(0)
14 #define WLAN_STA_ASSOC BIT(1)
15 #define WLAN_STA_PS BIT(2)
16 #define WLAN_STA_TIM BIT(3)
17 #define WLAN_STA_PERM BIT(4)
18 #define WLAN_STA_AUTHORIZED BIT(5)
19 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
20 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
21 #define WLAN_STA_PREAUTH BIT(8)
22 #define WLAN_STA_WMM BIT(9)
23 #define WLAN_STA_MFP BIT(10)
24 #define WLAN_STA_HT BIT(11)
25 #define WLAN_STA_WPS BIT(12)
26 #define WLAN_STA_MAYBE_WPS BIT(13)
27 #define WLAN_STA_WDS BIT(14)
28 #define WLAN_STA_ASSOC_REQ_OK BIT(15)
29 #define WLAN_STA_WPS2 BIT(16)
30 #define WLAN_STA_GAS BIT(17)
31 #define WLAN_STA_VHT BIT(18)
32 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
33 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
34 #define WLAN_STA_NONERP BIT(31)
35
36 /* Maximum number of supported rates (from both Supported Rates and Extended
37 * Supported Rates IEs). */
38 #define WLAN_SUPP_RATES_MAX 32
39
40
41 struct sta_info {
42 struct sta_info *next; /* next entry in sta list */
43 struct sta_info *hnext; /* next entry in hash table list */
44 u8 addr[6];
45 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
46 u32 flags; /* Bitfield of WLAN_STA_* */
47 u16 capability;
48 u16 listen_interval; /* or beacon_int for APs */
49 u8 supported_rates[WLAN_SUPP_RATES_MAX];
50 int supported_rates_len;
51 u8 qosinfo; /* Valid when WLAN_STA_WMM is set */
52
53 unsigned int nonerp_set:1;
54 unsigned int no_short_slot_time_set:1;
55 unsigned int no_short_preamble_set:1;
56 unsigned int no_ht_gf_set:1;
57 unsigned int no_ht_set:1;
58 unsigned int ht_20mhz_set:1;
59 unsigned int no_p2p_set:1;
60
61 u16 auth_alg;
62 u8 previous_ap[6];
63
64 enum {
65 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE,
66 STA_DISASSOC_FROM_CLI
67 } timeout_next;
68
69 u16 deauth_reason;
70 u16 disassoc_reason;
71
72 /* IEEE 802.1X related data */
73 struct eapol_state_machine *eapol_sm;
74
75 /* IEEE 802.11f (IAPP) related data */
76 struct ieee80211_mgmt *last_assoc_req;
77
78 u32 acct_session_id_hi;
79 u32 acct_session_id_lo;
80 time_t acct_session_start;
81 int acct_session_started;
82 int acct_terminate_cause; /* Acct-Terminate-Cause */
83 int acct_interim_interval; /* Acct-Interim-Interval */
84
85 unsigned long last_rx_bytes;
86 unsigned long last_tx_bytes;
87 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
88 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
89
90 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
91
92 struct wpa_state_machine *wpa_sm;
93 struct rsn_preauth_interface *preauth_iface;
94
95 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
96 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
97
98 int vlan_id;
99 /* PSKs from RADIUS authentication server */
100 struct hostapd_sta_wpa_psk_short *psk;
101
102 char *identity; /* User-Name from RADIUS */
103 char *radius_cui; /* Chargeable-User-Identity from RADIUS */
104
105 struct ieee80211_ht_capabilities *ht_capabilities;
106 struct ieee80211_vht_capabilities *vht_capabilities;
107
108 #ifdef CONFIG_IEEE80211W
109 int sa_query_count; /* number of pending SA Query requests;
110 * 0 = no SA Query in progress */
111 int sa_query_timed_out;
112 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
113 * sa_query_count octets of pending SA Query
114 * transaction identifiers */
115 struct os_time sa_query_start;
116 #endif /* CONFIG_IEEE80211W */
117
118 #ifdef CONFIG_INTERWORKING
119 #define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */
120 struct gas_dialog_info *gas_dialog;
121 u8 gas_dialog_next;
122 #endif /* CONFIG_INTERWORKING */
123
124 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
125 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
126 struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
127
128 struct os_time connected_time;
129
130 #ifdef CONFIG_SAE
131 struct sae_data *sae;
132 #endif /* CONFIG_SAE */
133 };
134
135
136 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
137 * passed since last received frame from the station, a nullfunc data frame is
138 * sent to the station. If this frame is not acknowledged and no other frames
139 * have been received, the station will be disassociated after
140 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
141 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
142 #define AP_MAX_INACTIVITY (5 * 60)
143 #define AP_DISASSOC_DELAY (1)
144 #define AP_DEAUTH_DELAY (1)
145 /* Number of seconds to keep STA entry with Authenticated flag after it has
146 * been disassociated. */
147 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
148 /* Number of seconds to keep STA entry after it has been deauthenticated. */
149 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
150
151
152 struct hostapd_data;
153
154 int ap_for_each_sta(struct hostapd_data *hapd,
155 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
156 void *ctx),
157 void *ctx);
158 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
159 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr);
160 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
161 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
162 void hostapd_free_stas(struct hostapd_data *hapd);
163 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
164 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
165 u32 session_timeout);
166 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
167 struct sta_info *sta);
168 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
169 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
170 u16 reason);
171 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
172 u16 reason);
173 #ifdef CONFIG_WPS
174 int ap_sta_wps_cancel(struct hostapd_data *hapd,
175 struct sta_info *sta, void *ctx);
176 #endif /* CONFIG_WPS */
177 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
178 int old_vlanid);
179 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
180 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
181 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
182 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
183 const u8 *addr, u16 reason);
184
185 void ap_sta_set_authorized(struct hostapd_data *hapd,
186 struct sta_info *sta, int authorized);
ap_sta_is_authorized(struct sta_info * sta)187 static inline int ap_sta_is_authorized(struct sta_info *sta)
188 {
189 return sta->flags & WLAN_STA_AUTHORIZED;
190 }
191
192 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
193 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
194
195 #endif /* STA_INFO_H */
196