2 * hostapd / Station table data structures
3 * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2007-2008, Intel Corporation
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * Alternatively, this software may be distributed under the terms of BSD
13 * See README and COPYING for more details.
19 #ifdef CONFIG_IEEE80211N
20 #include "ieee802_11_defs.h"
21 #endif /* CONFIG_IEEE80211N */
24 #define WLAN_STA_AUTH BIT(0)
25 #define WLAN_STA_ASSOC BIT(1)
26 #define WLAN_STA_PS BIT(2)
27 #define WLAN_STA_TIM BIT(3)
28 #define WLAN_STA_PERM BIT(4)
29 #define WLAN_STA_AUTHORIZED BIT(5)
30 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
31 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
32 #define WLAN_STA_PREAUTH BIT(8)
33 #define WLAN_STA_WMM BIT(9)
34 #define WLAN_STA_MFP BIT(10)
35 #define WLAN_STA_HT BIT(11)
36 #define WLAN_STA_WPS BIT(12)
37 #define WLAN_STA_MAYBE_WPS BIT(13)
38 #define WLAN_STA_NONERP BIT(31)
40 /* Maximum number of supported rates (from both Supported Rates and Extended
41 * Supported Rates IEs). */
42 #define WLAN_SUPP_RATES_MAX 32
46 struct sta_info *next; /* next entry in sta list */
47 struct sta_info *hnext; /* next entry in hash table list */
49 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
52 u16 listen_interval; /* or beacon_int for APs */
53 u8 supported_rates[WLAN_SUPP_RATES_MAX];
54 int supported_rates_len;
56 unsigned int nonerp_set:1;
57 unsigned int no_short_slot_time_set:1;
58 unsigned int no_short_preamble_set:1;
59 unsigned int no_ht_gf_set:1;
60 unsigned int no_ht_set:1;
61 unsigned int ht_20mhz_set:1;
67 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
70 /* IEEE 802.1X related data */
71 struct eapol_state_machine *eapol_sm;
73 /* IEEE 802.11f (IAPP) related data */
74 struct ieee80211_mgmt *last_assoc_req;
76 u32 acct_session_id_hi;
77 u32 acct_session_id_lo;
78 time_t acct_session_start;
79 int acct_session_started;
80 int acct_terminate_cause; /* Acct-Terminate-Cause */
81 int acct_interim_interval; /* Acct-Interim-Interval */
83 unsigned long last_rx_bytes;
84 unsigned long last_tx_bytes;
85 u32 acct_input_gigawords; /* Acct-Input-Gigawords */
86 u32 acct_output_gigawords; /* Acct-Output-Gigawords */
88 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
90 struct wpa_state_machine *wpa_sm;
91 struct rsn_preauth_interface *preauth_iface;
93 struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
94 struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
98 #ifdef CONFIG_IEEE80211N
99 struct ht_cap_ie ht_capabilities; /* IEEE 802.11n capabilities */
100 #endif /* CONFIG_IEEE80211N */
102 #ifdef CONFIG_IEEE80211W
103 int sa_query_count; /* number of pending SA Query requests;
104 * 0 = no SA Query in progress */
105 int sa_query_timed_out;
106 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
107 * sa_query_count octets of pending SA Query
108 * transaction identifiers */
109 struct os_time sa_query_start;
110 #endif /* CONFIG_IEEE80211W */
112 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
116 /* Maximum number of AIDs to use for STAs; must be 2007 or lower
117 * (8802.11 limitation) */
118 #define MAX_AID_TABLE_SIZE 128
120 #define STA_HASH_SIZE 256
121 #define STA_HASH(sta) (sta[5])
124 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
125 * passed since last received frame from the station, a nullfunc data frame is
126 * sent to the station. If this frame is not acknowledged and no other frames
127 * have been received, the station will be disassociated after
128 * AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated
129 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
130 #define AP_MAX_INACTIVITY (5 * 60)
131 #define AP_DISASSOC_DELAY (1)
132 #define AP_DEAUTH_DELAY (1)
133 /* Number of seconds to keep STA entry with Authenticated flag after it has
134 * been disassociated. */
135 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
136 /* Number of seconds to keep STA entry after it has been deauthenticated. */
137 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)