2 * hostapd / Station table
3 * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
19 #define WLAN_STA_AUTH BIT(0)
20 #define WLAN_STA_ASSOC BIT(1)
21 #define WLAN_STA_PS BIT(2)
22 #define WLAN_STA_TIM BIT(3)
23 #define WLAN_STA_PERM BIT(4)
24 #define WLAN_STA_AUTHORIZED BIT(5)
25 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
26 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
27 #define WLAN_STA_PREAUTH BIT(8)
28 #define WLAN_STA_WMM BIT(9)
29 #define WLAN_STA_MFP BIT(10)
30 #define WLAN_STA_HT BIT(11)
31 #define WLAN_STA_WPS BIT(12)
32 #define WLAN_STA_MAYBE_WPS BIT(13)
33 #define WLAN_STA_WDS BIT(14)
34 #define WLAN_STA_ASSOC_REQ_OK BIT(15)
35 #define WLAN_STA_WPS2 BIT(16)
36 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
37 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
38 #define WLAN_STA_NONERP BIT(31)
40 /* Maximum number of supported rates (from both Supported Rates and Extended
41 * Supported Rates IEs). */
42 #define WLAN_SUPP_RATES_MAX 32
46 struct sta_info *next; /* next entry in sta list */
47 struct sta_info *hnext; /* next entry in hash table list */
49 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
50 u32 flags; /* Bitfield of WLAN_STA_* */
52 u16 listen_interval; /* or beacon_int for APs */
53 u8 supported_rates[WLAN_SUPP_RATES_MAX];
54 int supported_rates_len;
56 unsigned int nonerp_set:1;
57 unsigned int no_short_slot_time_set:1;
58 unsigned int no_short_preamble_set:1;
59 unsigned int no_ht_gf_set:1;
60 unsigned int no_ht_set:1;
61 unsigned int ht_20mhz_set:1;
62 unsigned int no_p2p_set:1;
71 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
77 /* IEEE 802.1X related data */
78 struct eapol_state_machine *eapol_sm;
80 /* IEEE 802.11f (IAPP) related data */
81 struct ieee80211_mgmt *last_assoc_req;
83 u32 acct_session_id_hi;
84 u32 acct_session_id_lo;
85 time_t acct_session_start;
86 int acct_session_started;
87 int acct_terminate_cause; /* Acct-Terminate-Cause */
88 int acct_interim_interval; /* Acct-Interim-Interval */
90 unsigned long last_rx_bytes;
91 unsigned long last_tx_bytes;
92 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
93 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
95 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
97 struct wpa_state_machine *wpa_sm;
98 struct rsn_preauth_interface *preauth_iface;
100 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
101 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
104 u8 *psk; /* PSK from RADIUS authentication server */
106 struct ieee80211_ht_capabilities *ht_capabilities;
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 */
118 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
119 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
123 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
124 * passed since last received frame from the station, a nullfunc data frame is
125 * sent to the station. If this frame is not acknowledged and no other frames
126 * have been received, the station will be disassociated after
127 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
128 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
129 #define AP_MAX_INACTIVITY (5 * 60)
130 #define AP_DISASSOC_DELAY (1)
131 #define AP_DEAUTH_DELAY (1)
132 /* Number of seconds to keep STA entry with Authenticated flag after it has
133 * been disassociated. */
134 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
135 /* Number of seconds to keep STA entry after it has been deauthenticated. */
136 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
141 int ap_for_each_sta(struct hostapd_data *hapd,
142 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
145 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
146 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
147 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
148 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
149 void hostapd_free_stas(struct hostapd_data *hapd);
150 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
151 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
152 u32 session_timeout);
153 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
154 struct sta_info *sta);
155 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
156 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
158 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
160 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
162 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
163 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
164 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
165 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
166 const u8 *addr, u16 reason);
168 void ap_sta_set_authorized(struct hostapd_data *hapd,
169 struct sta_info *sta, int authorized);
170 static inline int ap_sta_is_authorized(struct sta_info *sta)
172 return sta->flags & WLAN_STA_AUTHORIZED;
175 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
176 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
178 #endif /* STA_INFO_H */