contrib/hostapd/ap.h

   1 /*
   2  * hostapd / Station table data structures
   3  * Copyright (c) 2002-2004, Jouni Malinen <j@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 AP_H
  16 #define AP_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_WME BIT(9)
  29 #define WLAN_STA_NONERP BIT(31)
  30
  31 /* Maximum number of supported rates (from both Supported Rates and Extended
  32  * Supported Rates IEs). */
  33 #define WLAN_SUPP_RATES_MAX 32
  34
  35
  36 struct sta_info {
  37         struct sta_info *next; /* next entry in sta list */
  38         struct sta_info *hnext; /* next entry in hash table list */
  39         u8 addr[6];
  40         u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
  41         u32 flags;
  42         u16 capability;
  43         u16 listen_interval; /* or beacon_int for APs */
  44         u8 supported_rates[WLAN_SUPP_RATES_MAX];
  45         int supported_rates_len;
  46
  47         unsigned int nonerp_set:1;
  48         unsigned int no_short_slot_time_set:1;
  49         unsigned int no_short_preamble_set:1;
  50
  51         u16 auth_alg;
  52         u8 previous_ap[6];
  53
  54         enum {
  55                 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
  56         } timeout_next;
  57
  58         /* IEEE 802.1X related data */
  59         struct eapol_state_machine *eapol_sm;
  60
  61         /* IEEE 802.11f (IAPP) related data */
  62         struct ieee80211_mgmt *last_assoc_req;
  63
  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 */
  70
  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 */
  75
  76         u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
  77
  78         struct wpa_state_machine *wpa_sm;
  79         struct rsn_preauth_interface *preauth_iface;
  80
  81         struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
  82         struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
  83
  84         int vlan_id;
  85 };
  86
  87
  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
  91
  92 #define STA_HASH_SIZE 256
  93 #define STA_HASH(sta) (sta[5])
  94
  95
  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)
 110
 111 #endif /* AP_H */