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