workbench/network/WirelessManager/src/ap/sta_info.h

   1 /*
   2  * hostapd / Station table
   3  * Copyright (c) 2002-2009, 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 STA_INFO_H
  16 #define STA_INFO_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_WMM BIT(9)
  29 #define WLAN_STA_MFP BIT(10)
  30 #define WLAN_STA_HT BIT(11)
  31 #define WLAN_STA_WPS BIT(12)
  32 #define WLAN_STA_MAYBE_WPS BIT(13)
  33 #define WLAN_STA_WDS BIT(14)
  34 #define WLAN_STA_NONERP BIT(31)
  35
  36 /* Maximum number of supported rates (from both Supported Rates and Extended
  37  * Supported Rates IEs). */
  38 #define WLAN_SUPP_RATES_MAX 32
  39
  40
  41 struct sta_info {
  42         struct sta_info *next; /* next entry in sta list */
  43         struct sta_info *hnext; /* next entry in hash table list */
  44         u8 addr[6];
  45         u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
  46         u32 flags; /* Bitfield of WLAN_STA_* */
  47         u16 capability;
  48         u16 listen_interval; /* or beacon_int for APs */
  49         u8 supported_rates[WLAN_SUPP_RATES_MAX];
  50         int supported_rates_len;
  51
  52         unsigned int nonerp_set:1;
  53         unsigned int no_short_slot_time_set:1;
  54         unsigned int no_short_preamble_set:1;
  55         unsigned int no_ht_gf_set:1;
  56         unsigned int no_ht_set:1;
  57         unsigned int ht_20mhz_set:1;
  58
  59         u16 auth_alg;
  60         u8 previous_ap[6];
  61
  62         enum {
  63                 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE
  64         } timeout_next;
  65
  66         /* IEEE 802.1X related data */
  67         struct eapol_state_machine *eapol_sm;
  68
  69         /* IEEE 802.11f (IAPP) related data */
  70         struct ieee80211_mgmt *last_assoc_req;
  71
  72         u32 acct_session_id_hi;
  73         u32 acct_session_id_lo;
  74         time_t acct_session_start;
  75         int acct_session_started;
  76         int acct_terminate_cause; /* Acct-Terminate-Cause */
  77         int acct_interim_interval; /* Acct-Interim-Interval */
  78
  79         unsigned long last_rx_bytes;
  80         unsigned long last_tx_bytes;
  81         u32 acct_input_gigawords; /* Acct-Input-Gigawords */
  82         u32 acct_output_gigawords; /* Acct-Output-Gigawords */
  83
  84         u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
  85
  86         struct wpa_state_machine *wpa_sm;
  87         struct rsn_preauth_interface *preauth_iface;
  88
  89         struct hostapd_ssid *ssid; /* SSID selection based on (Re)AssocReq */
  90         struct hostapd_ssid *ssid_probe; /* SSID selection based on ProbeReq */
  91
  92         int vlan_id;
  93
  94         struct ieee80211_ht_capabilities *ht_capabilities;
  95
  96 #ifdef CONFIG_IEEE80211W
  97         int sa_query_count; /* number of pending SA Query requests;
  98                              * 0 = no SA Query in progress */
  99         int sa_query_timed_out;
 100         u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
 101                                 * sa_query_count octets of pending SA Query
 102                                 * transaction identifiers */
 103         struct os_time sa_query_start;
 104 #endif /* CONFIG_IEEE80211W */
 105
 106         struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
 107 };
 108
 109
 110 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
 111  * passed since last received frame from the station, a nullfunc data frame is
 112  * sent to the station. If this frame is not acknowledged and no other frames
 113  * have been received, the station will be disassociated after
 114  * AP_DISASSOC_DELAY seconds. Similarily, the station will be deauthenticated
 115  * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
 116 #define AP_MAX_INACTIVITY (5 * 60)
 117 #define AP_DISASSOC_DELAY (1)
 118 #define AP_DEAUTH_DELAY (1)
 119 /* Number of seconds to keep STA entry with Authenticated flag after it has
 120  * been disassociated. */
 121 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
 122 /* Number of seconds to keep STA entry after it has been deauthenticated. */
 123 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
 124
 125
 126 struct hostapd_data;
 127
 128 int ap_for_each_sta(struct hostapd_data *hapd,
 129                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
 130                               void *ctx),
 131                     void *ctx);
 132 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
 133 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
 134 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
 135 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
 136 void hostapd_free_stas(struct hostapd_data *hapd);
 137 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
 138 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 139                             u32 session_timeout);
 140 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
 141                                struct sta_info *sta);
 142 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
 143 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 144                          u16 reason);
 145 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 146                            u16 reason);
 147 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 148                      int old_vlanid);
 149 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
 150 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
 151 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
 152 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
 153                        const u8 *addr, u16 reason);
 154
 155 #endif /* STA_INFO_H */