e8ff1e594e
Must not count the same STA multiple times if it reassociates back to the same AP without the old STA entry being removed.
137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/*
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* hostapd / Station table data structures
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* Copyright (c) 2002-2004, Jouni Malinen <j@w1.fi>
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* Copyright (c) 2007-2008, Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef AP_H
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#define AP_H
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#ifdef CONFIG_IEEE80211N
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#include "ieee802_11_defs.h"
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#endif /* CONFIG_IEEE80211N */
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/* STA flags */
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#define WLAN_STA_AUTH BIT(0)
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#define WLAN_STA_ASSOC BIT(1)
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#define WLAN_STA_PS BIT(2)
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#define WLAN_STA_TIM BIT(3)
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#define WLAN_STA_PERM BIT(4)
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#define WLAN_STA_AUTHORIZED BIT(5)
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#define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
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#define WLAN_STA_SHORT_PREAMBLE BIT(7)
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#define WLAN_STA_PREAUTH BIT(8)
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#define WLAN_STA_WME BIT(9)
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#define WLAN_STA_MFP BIT(10)
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#define WLAN_STA_HT BIT(11)
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#define WLAN_STA_WPS BIT(12)
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#define WLAN_STA_MAYBE_WPS BIT(13)
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#define WLAN_STA_NONERP BIT(31)
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/* Maximum number of supported rates (from both Supported Rates and Extended
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* Supported Rates IEs). */
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#define WLAN_SUPP_RATES_MAX 32
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struct sta_info {
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struct sta_info *next; /* next entry in sta list */
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struct sta_info *hnext; /* next entry in hash table list */
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u8 addr[6];
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u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
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u32 flags;
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u16 capability;
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u16 listen_interval; /* or beacon_int for APs */
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u8 supported_rates[WLAN_SUPP_RATES_MAX];
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int supported_rates_len;
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unsigned int nonerp_set:1;
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unsigned int no_short_slot_time_set:1;
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unsigned int no_short_preamble_set:1;
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unsigned int no_ht_gf_set:1;
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unsigned int no_ht_set:1;
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unsigned int ht_20mhz_set:1;
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u16 auth_alg;
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u8 previous_ap[6];
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enum {
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STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
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} timeout_next;
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/* IEEE 802.1X related data */
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struct eapol_state_machine *eapol_sm;
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/* IEEE 802.11f (IAPP) related data */
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struct ieee80211_mgmt *last_assoc_req;
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u32 acct_session_id_hi;
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u32 acct_session_id_lo;
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time_t acct_session_start;
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int acct_session_started;
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int acct_terminate_cause; /* Acct-Terminate-Cause */
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int acct_interim_interval; /* Acct-Interim-Interval */
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unsigned long last_rx_bytes;
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unsigned long last_tx_bytes;
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u32 acct_input_gigawords; /* Acct-Input-Gigawords */
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u32 acct_output_gigawords; /* Acct-Output-Gigawords */
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u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
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struct wpa_state_machine *wpa_sm;
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struct rsn_preauth_interface *preauth_iface;
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struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
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struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
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int vlan_id;
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#ifdef CONFIG_IEEE80211N
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struct ht_cap_ie ht_capabilities; /* IEEE 802.11n capabilities */
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#endif /* CONFIG_IEEE80211N */
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#ifdef CONFIG_IEEE80211W
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int ping_count; /* number of pending ping requests;
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* 0 = no ping in progress */
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int ping_timed_out;
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u8 *ping_trans_id; /* buffer of WLAN_PING_TRANS_ID_LEN * ping_count
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* octets of pending ping transaction identifiers */
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#endif /* CONFIG_IEEE80211W */
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struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
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};
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/* Maximum number of AIDs to use for STAs; must be 2007 or lower
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* (8802.11 limitation) */
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#define MAX_AID_TABLE_SIZE 128
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#define STA_HASH_SIZE 256
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#define STA_HASH(sta) (sta[5])
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/* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
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* passed since last received frame from the station, a nullfunc data frame is
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* sent to the station. If this frame is not acknowledged and no other frames
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* have been received, the station will be disassociated after
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* AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated
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* after AP_DEAUTH_DELAY seconds has passed after disassociation. */
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#define AP_MAX_INACTIVITY (5 * 60)
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#define AP_DISASSOC_DELAY (1)
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#define AP_DEAUTH_DELAY (1)
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/* Number of seconds to keep STA entry with Authenticated flag after it has
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* been disassociated. */
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#define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
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/* Number of seconds to keep STA entry after it has been deauthenticated. */
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#define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
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#endif /* AP_H */
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