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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * hostapd / Station table
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003 * Copyright (c) 2002-2011, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
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)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080029#define WLAN_STA_WPS2 BIT(16)
Dmitry Shmidt04949592012-07-19 12:16:46 -070030#define WLAN_STA_GAS BIT(17)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080031#define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
32#define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070033#define WLAN_STA_NONERP BIT(31)
34
35/* Maximum number of supported rates (from both Supported Rates and Extended
36 * Supported Rates IEs). */
37#define WLAN_SUPP_RATES_MAX 32
38
39
40struct sta_info {
41 struct sta_info *next; /* next entry in sta list */
42 struct sta_info *hnext; /* next entry in hash table list */
43 u8 addr[6];
44 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
45 u32 flags; /* Bitfield of WLAN_STA_* */
46 u16 capability;
47 u16 listen_interval; /* or beacon_int for APs */
48 u8 supported_rates[WLAN_SUPP_RATES_MAX];
49 int supported_rates_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080050 u8 qosinfo; /* Valid when WLAN_STA_WMM is set */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070051
52 unsigned int nonerp_set:1;
53 unsigned int no_short_slot_time_set:1;
54 unsigned int no_short_preamble_set:1;
55 unsigned int no_ht_gf_set:1;
56 unsigned int no_ht_set:1;
57 unsigned int ht_20mhz_set:1;
58 unsigned int no_p2p_set:1;
59
60 u16 auth_alg;
61 u8 previous_ap[6];
62
63 enum {
64 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
65 } timeout_next;
66
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080067 u16 deauth_reason;
68 u16 disassoc_reason;
69
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070070 /* IEEE 802.1X related data */
71 struct eapol_state_machine *eapol_sm;
72
73 /* IEEE 802.11f (IAPP) related data */
74 struct ieee80211_mgmt *last_assoc_req;
75
76 u32 acct_session_id_hi;
77 u32 acct_session_id_lo;
78 time_t acct_session_start;
79 int acct_session_started;
80 int acct_terminate_cause; /* Acct-Terminate-Cause */
81 int acct_interim_interval; /* Acct-Interim-Interval */
82
83 unsigned long last_rx_bytes;
84 unsigned long last_tx_bytes;
85 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
86 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
87
88 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
89
90 struct wpa_state_machine *wpa_sm;
91 struct rsn_preauth_interface *preauth_iface;
92
93 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
94 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
95
96 int vlan_id;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080097 u8 *psk; /* PSK from RADIUS authentication server */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070098
99 struct ieee80211_ht_capabilities *ht_capabilities;
100
101#ifdef CONFIG_IEEE80211W
102 int sa_query_count; /* number of pending SA Query requests;
103 * 0 = no SA Query in progress */
104 int sa_query_timed_out;
105 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
106 * sa_query_count octets of pending SA Query
107 * transaction identifiers */
108 struct os_time sa_query_start;
109#endif /* CONFIG_IEEE80211W */
110
Dmitry Shmidt04949592012-07-19 12:16:46 -0700111#ifdef CONFIG_INTERWORKING
112#define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */
113 struct gas_dialog_info *gas_dialog;
114 u8 gas_dialog_next;
115#endif /* CONFIG_INTERWORKING */
116
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700117 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
118 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
119};
120
121
122/* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
123 * passed since last received frame from the station, a nullfunc data frame is
124 * sent to the station. If this frame is not acknowledged and no other frames
125 * have been received, the station will be disassociated after
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800126 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700127 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
128#define AP_MAX_INACTIVITY (5 * 60)
129#define AP_DISASSOC_DELAY (1)
130#define AP_DEAUTH_DELAY (1)
131/* Number of seconds to keep STA entry with Authenticated flag after it has
132 * been disassociated. */
133#define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
134/* Number of seconds to keep STA entry after it has been deauthenticated. */
135#define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
136
137
138struct hostapd_data;
139
140int ap_for_each_sta(struct hostapd_data *hapd,
141 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
142 void *ctx),
143 void *ctx);
144struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
145void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
146void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700147void hostapd_free_stas(struct hostapd_data *hapd);
148void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
149void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
150 u32 session_timeout);
151void ap_sta_no_session_timeout(struct hostapd_data *hapd,
152 struct sta_info *sta);
153struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
154void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
155 u16 reason);
156void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
157 u16 reason);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700158#ifdef CONFIG_WPS
159int ap_sta_wps_cancel(struct hostapd_data *hapd,
160 struct sta_info *sta, void *ctx);
161#endif /* CONFIG_WPS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700162int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
163 int old_vlanid);
164void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
165void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
166int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
167void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
168 const u8 *addr, u16 reason);
169
170void ap_sta_set_authorized(struct hostapd_data *hapd,
171 struct sta_info *sta, int authorized);
172static inline int ap_sta_is_authorized(struct sta_info *sta)
173{
174 return sta->flags & WLAN_STA_AUTHORIZED;
175}
176
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800177void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
178void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
179
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700180#endif /* STA_INFO_H */