2 * hostapd / Station table data structures
3 * Copyright (c) 2002-2004, Jouni Malinen <j@w1.fi>
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.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
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_WME BIT(9)
29 #define WLAN_STA_NONERP BIT(31)
31 /* Maximum number of supported rates (from both Supported Rates and Extended
32 * Supported Rates IEs). */
33 #define WLAN_SUPP_RATES_MAX 32
37 struct sta_info *next; /* next entry in sta list */
38 struct sta_info *hnext; /* next entry in hash table list */
40 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
43 u16 listen_interval; /* or beacon_int for APs */
44 u8 supported_rates[WLAN_SUPP_RATES_MAX];
45 int supported_rates_len;
47 unsigned int nonerp_set:1;
48 unsigned int no_short_slot_time_set:1;
49 unsigned int no_short_preamble_set:1;
55 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
58 /* IEEE 802.1X related data */
59 struct eapol_state_machine *eapol_sm;
61 /* IEEE 802.11f (IAPP) related data */
62 struct ieee80211_mgmt *last_assoc_req;
64 u32 acct_session_id_hi;
65 u32 acct_session_id_lo;
66 time_t acct_session_start;
67 int acct_session_started;
68 int acct_terminate_cause; /* Acct-Terminate-Cause */
69 int acct_interim_interval; /* Acct-Interim-Interval */
71 unsigned long last_rx_bytes;
72 unsigned long last_tx_bytes;
73 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
74 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
76 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
78 struct wpa_state_machine *wpa_sm;
79 struct rsn_preauth_interface *preauth_iface;
81 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
82 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
88 /* Maximum number of AIDs to use for STAs; must be 2007 or lower
89 * (8802.11 limitation) */
90 #define MAX_AID_TABLE_SIZE 128
92 #define STA_HASH_SIZE 256
93 #define STA_HASH(sta) (sta[5])
96 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
97 * passed since last received frame from the station, a nullfunc data frame is
98 * sent to the station. If this frame is not acknowledged and no other frames
99 * have been received, the station will be disassociated after
100 * AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated
101 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
102 #define AP_MAX_INACTIVITY (5 * 60)
103 #define AP_DISASSOC_DELAY (1)
104 #define AP_DEAUTH_DELAY (1)
105 /* Number of seconds to keep STA entry with Authenticated flag after it has
106 * been disassociated. */
107 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
108 /* Number of seconds to keep STA entry after it has been deauthenticated. */
109 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)