1 /* 2 * hostapd / Station table 3 * Copyright (c) 2002-2009, Jouni Malinen <j (at) w1.fi> 4 * 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. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #ifndef STA_INFO_H 16 #define STA_INFO_H 17 18 /* STA flags */ 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_NONERP BIT(31) 36 37 /* Maximum number of supported rates (from both Supported Rates and Extended 38 * Supported Rates IEs). */ 39 #define WLAN_SUPP_RATES_MAX 32 40 41 42 struct sta_info { 43 struct sta_info *next; /* next entry in sta list */ 44 struct sta_info *hnext; /* next entry in hash table list */ 45 u8 addr[6]; 46 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */ 47 u32 flags; /* Bitfield of WLAN_STA_* */ 48 u16 capability; 49 u16 listen_interval; /* or beacon_int for APs */ 50 u8 supported_rates[WLAN_SUPP_RATES_MAX]; 51 int supported_rates_len; 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 } timeout_next; 67 68 /* IEEE 802.1X related data */ 69 struct eapol_state_machine *eapol_sm; 70 71 /* IEEE 802.11f (IAPP) related data */ 72 struct ieee80211_mgmt *last_assoc_req; 73 74 u32 acct_session_id_hi; 75 u32 acct_session_id_lo; 76 time_t acct_session_start; 77 int acct_session_started; 78 int acct_terminate_cause; /* Acct-Terminate-Cause */ 79 int acct_interim_interval; /* Acct-Interim-Interval */ 80 81 unsigned long last_rx_bytes; 82 unsigned long last_tx_bytes; 83 u32 acct_input_gigawords; /* Acct-Input-Gigawords */ 84 u32 acct_output_gigawords; /* Acct-Output-Gigawords */ 85 86 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */ 87 88 struct wpa_state_machine *wpa_sm; 89 struct rsn_preauth_interface *preauth_iface; 90 91 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */ 92 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */ 93 94 int vlan_id; 95 96 struct ieee80211_ht_capabilities *ht_capabilities; 97 98 #ifdef CONFIG_IEEE80211W 99 int sa_query_count; /* number of pending SA Query requests; 100 * 0 = no SA Query in progress */ 101 int sa_query_timed_out; 102 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN * 103 * sa_query_count octets of pending SA Query 104 * transaction identifiers */ 105 struct os_time sa_query_start; 106 #endif /* CONFIG_IEEE80211W */ 107 108 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */ 109 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */ 110 }; 111 112 113 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has 114 * passed since last received frame from the station, a nullfunc data frame is 115 * sent to the station. If this frame is not acknowledged and no other frames 116 * have been received, the station will be disassociated after 117 * AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated 118 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */ 119 #define AP_MAX_INACTIVITY (5 * 60) 120 #define AP_DISASSOC_DELAY (1) 121 #define AP_DEAUTH_DELAY (1) 122 /* Number of seconds to keep STA entry with Authenticated flag after it has 123 * been disassociated. */ 124 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30) 125 /* Number of seconds to keep STA entry after it has been deauthenticated. */ 126 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5) 127 128 129 struct hostapd_data; 130 131 int ap_for_each_sta(struct hostapd_data *hapd, 132 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta, 133 void *ctx), 134 void *ctx); 135 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta); 136 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta); 137 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta); 138 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta); 139 void hostapd_free_stas(struct hostapd_data *hapd); 140 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx); 141 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta, 142 u32 session_timeout); 143 void ap_sta_no_session_timeout(struct hostapd_data *hapd, 144 struct sta_info *sta); 145 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr); 146 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta, 147 u16 reason); 148 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta, 149 u16 reason); 150 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta, 151 int old_vlanid); 152 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta); 153 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta); 154 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta); 155 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta, 156 const u8 *addr, u16 reason); 157 158 void ap_sta_set_authorized(struct hostapd_data *hapd, 159 struct sta_info *sta, int authorized); 160 static inline int ap_sta_is_authorized(struct sta_info *sta) 161 { 162 return sta->flags & WLAN_STA_AUTHORIZED; 163 } 164 165 #endif /* STA_INFO_H */ 166
