wpa_supplicant_node: wpa_supplicant_node: sta

00001 /*
00002  * hostapd / Station table
00003  * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 2 as
00007  * published by the Free Software Foundation.
00008  *
00009  * Alternatively, this software may be distributed under the terms of BSD
00010  * license.
00011  *
00012  * See README and COPYING for more details.
00013  */
00014 
00015 #ifndef STA_INFO_H
00016 #define STA_INFO_H
00017 
00018 /* STA flags */
00019 #define WLAN_STA_AUTH BIT(0)
00020 #define WLAN_STA_ASSOC BIT(1)
00021 #define WLAN_STA_PS BIT(2)
00022 #define WLAN_STA_TIM BIT(3)
00023 #define WLAN_STA_PERM BIT(4)
00024 #define WLAN_STA_AUTHORIZED BIT(5)
00025 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
00026 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
00027 #define WLAN_STA_PREAUTH BIT(8)
00028 #define WLAN_STA_WMM BIT(9)
00029 #define WLAN_STA_MFP BIT(10)
00030 #define WLAN_STA_HT BIT(11)
00031 #define WLAN_STA_WPS BIT(12)
00032 #define WLAN_STA_MAYBE_WPS BIT(13)
00033 #define WLAN_STA_WDS BIT(14)
00034 #define WLAN_STA_NONERP BIT(31)
00035 
00036 /* Maximum number of supported rates (from both Supported Rates and Extended
00037  * Supported Rates IEs). */
00038 #define WLAN_SUPP_RATES_MAX 32
00039 
00040 
00041 struct sta_info {
00042         struct sta_info *next; /* next entry in sta list */
00043         struct sta_info *hnext; /* next entry in hash table list */
00044         u8 addr[6];
00045         u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
00046         u32 flags; /* Bitfield of WLAN_STA_* */
00047         u16 capability;
00048         u16 listen_interval; /* or beacon_int for APs */
00049         u8 supported_rates[WLAN_SUPP_RATES_MAX];
00050         int supported_rates_len;
00051 
00052         unsigned int nonerp_set:1;
00053         unsigned int no_short_slot_time_set:1;
00054         unsigned int no_short_preamble_set:1;
00055         unsigned int no_ht_gf_set:1;
00056         unsigned int no_ht_set:1;
00057         unsigned int ht_20mhz_set:1;
00058 
00059         u16 auth_alg;
00060         u8 previous_ap[6];
00061 
00062         enum {
00063                 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
00064         } timeout_next;
00065 
00066         /* IEEE 802.1X related data */
00067         struct eapol_state_machine *eapol_sm;
00068 
00069         /* IEEE 802.11f (IAPP) related data */
00070         struct ieee80211_mgmt *last_assoc_req;
00071 
00072         u32 acct_session_id_hi;
00073         u32 acct_session_id_lo;
00074         time_t acct_session_start;
00075         int acct_session_started;
00076         int acct_terminate_cause; /* Acct-Terminate-Cause */
00077         int acct_interim_interval; /* Acct-Interim-Interval */
00078 
00079         unsigned long last_rx_bytes;
00080         unsigned long last_tx_bytes;
00081         u32 acct_input_gigawords; /* Acct-Input-Gigawords */
00082         u32 acct_output_gigawords; /* Acct-Output-Gigawords */
00083 
00084         u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
00085 
00086         struct wpa_state_machine *wpa_sm;
00087         struct rsn_preauth_interface *preauth_iface;
00088 
00089         struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
00090         struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
00091 
00092         int vlan_id;
00093 
00094         struct ieee80211_ht_capabilities *ht_capabilities;
00095 
00096 #ifdef CONFIG_IEEE80211W
00097         int sa_query_count; /* number of pending SA Query requests;
00098                              * 0 = no SA Query in progress */
00099         int sa_query_timed_out;
00100         u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
00101                                 * sa_query_count octets of pending SA Query
00102                                 * transaction identifiers */
00103         struct os_time sa_query_start;
00104 #endif /* CONFIG_IEEE80211W */
00105 
00106         struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
00107 };
00108 
00109 
00110 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
00111  * passed since last received frame from the station, a nullfunc data frame is
00112  * sent to the station. If this frame is not acknowledged and no other frames
00113  * have been received, the station will be disassociated after
00114  * AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated
00115  * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
00116 #define AP_MAX_INACTIVITY (5 * 60)
00117 #define AP_DISASSOC_DELAY (1)
00118 #define AP_DEAUTH_DELAY (1)
00119 /* Number of seconds to keep STA entry with Authenticated flag after it has
00120  * been disassociated. */
00121 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
00122 /* Number of seconds to keep STA entry after it has been deauthenticated. */
00123 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
00124 
00125 
00126 struct hostapd_data;
00127 
00128 int ap_for_each_sta(struct hostapd_data *hapd,
00129                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
00130                               void *ctx),
00131                     void *ctx);
00132 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
00133 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
00134 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
00135 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
00136 void hostapd_free_stas(struct hostapd_data *hapd);
00137 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
00138 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
00139                             u32 session_timeout);
00140 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
00141                                struct sta_info *sta);
00142 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
00143 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
00144                          u16 reason);
00145 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
00146                            u16 reason);
00147 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
00148                      int old_vlanid);
00149 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
00150 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
00151 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
00152 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
00153                        const u8 *addr, u16 reason);
00154 
00155 #endif /* STA_INFO_H */
sta_info.h
