0d7e5a3a29
The nl80211 driver can report low ACK condition (in fact it reports complete loss right now only). Use that, along with a config option, to disconnect stations when the data connection is not working properly, e.g., due to the STA having went outside the range of the AP. This is disabled by default and can be enabled with disassoc_low_ack=1 in hostapd or wpa_supplicant configuration file. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
252 lines
6.6 KiB
C
252 lines
6.6 KiB
C
/*
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* hostapd / Initialization and configuration
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* Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
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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 HOSTAPD_H
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#define HOSTAPD_H
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#include "common/defs.h"
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struct wpa_driver_ops;
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struct wpa_ctrl_dst;
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struct radius_server_data;
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struct upnp_wps_device_sm;
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struct hapd_interfaces;
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struct hostapd_data;
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struct sta_info;
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struct hostap_sta_driver_data;
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struct ieee80211_ht_capabilities;
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struct full_dynamic_vlan;
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enum wps_event;
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union wps_event_data;
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struct hostapd_probereq_cb {
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int (*cb)(void *ctx, const u8 *sa, const u8 *ie, size_t ie_len);
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void *ctx;
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};
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#define HOSTAPD_RATE_BASIC 0x00000001
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struct hostapd_rate_data {
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int rate; /* rate in 100 kbps */
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int flags; /* HOSTAPD_RATE_ flags */
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};
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struct hostapd_frame_info {
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u32 channel;
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u32 datarate;
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u32 ssi_signal;
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};
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/**
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* struct hostapd_data - hostapd per-BSS data structure
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*/
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struct hostapd_data {
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struct hostapd_iface *iface;
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struct hostapd_config *iconf;
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struct hostapd_bss_config *conf;
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int interface_added; /* virtual interface added for this BSS */
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u8 own_addr[ETH_ALEN];
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int num_sta; /* number of entries in sta_list */
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struct sta_info *sta_list; /* STA info list head */
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#define STA_HASH_SIZE 256
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#define STA_HASH(sta) (sta[5])
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struct sta_info *sta_hash[STA_HASH_SIZE];
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/*
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* Bitfield for indicating which AIDs are allocated. Only AID values
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* 1-2007 are used and as such, the bit at index 0 corresponds to AID
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* 1.
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*/
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#define AID_WORDS ((2008 + 31) / 32)
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u32 sta_aid[AID_WORDS];
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const struct wpa_driver_ops *driver;
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void *drv_priv;
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void (*new_assoc_sta_cb)(struct hostapd_data *hapd,
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struct sta_info *sta, int reassoc);
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void *msg_ctx; /* ctx for wpa_msg() calls */
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struct radius_client_data *radius;
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u32 acct_session_id_hi, acct_session_id_lo;
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struct iapp_data *iapp;
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struct hostapd_cached_radius_acl *acl_cache;
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struct hostapd_acl_query_data *acl_queries;
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struct wpa_authenticator *wpa_auth;
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struct eapol_authenticator *eapol_auth;
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struct rsn_preauth_interface *preauth_iface;
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time_t michael_mic_failure;
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int michael_mic_failures;
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int tkip_countermeasures;
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int ctrl_sock;
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struct wpa_ctrl_dst *ctrl_dst;
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void *ssl_ctx;
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void *eap_sim_db_priv;
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struct radius_server_data *radius_srv;
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int parameter_set_count;
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#ifdef CONFIG_FULL_DYNAMIC_VLAN
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struct full_dynamic_vlan *full_dynamic_vlan;
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#endif /* CONFIG_FULL_DYNAMIC_VLAN */
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struct l2_packet_data *l2;
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struct wps_context *wps;
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struct wpabuf *wps_beacon_ie;
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struct wpabuf *wps_probe_resp_ie;
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#ifdef CONFIG_WPS
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unsigned int ap_pin_failures;
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struct upnp_wps_device_sm *wps_upnp;
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unsigned int ap_pin_lockout_time;
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#endif /* CONFIG_WPS */
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struct hostapd_probereq_cb *probereq_cb;
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size_t num_probereq_cb;
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void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
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int freq);
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void *public_action_cb_ctx;
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int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len,
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int freq);
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void *vendor_action_cb_ctx;
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void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr,
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const u8 *uuid_e);
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void *wps_reg_success_cb_ctx;
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void (*wps_event_cb)(void *ctx, enum wps_event event,
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union wps_event_data *data);
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void *wps_event_cb_ctx;
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#ifdef CONFIG_P2P
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struct p2p_data *p2p;
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struct p2p_group *p2p_group;
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struct wpabuf *p2p_beacon_ie;
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struct wpabuf *p2p_probe_resp_ie;
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/* Number of non-P2P association stations */
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int num_sta_no_p2p;
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/* Periodic NoA (used only when no non-P2P clients in the group) */
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int noa_enabled;
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int noa_start;
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int noa_duration;
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#endif /* CONFIG_P2P */
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};
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/**
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* struct hostapd_iface - hostapd per-interface data structure
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*/
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struct hostapd_iface {
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struct hapd_interfaces *interfaces;
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void *owner;
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int (*reload_config)(struct hostapd_iface *iface);
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struct hostapd_config * (*config_read_cb)(const char *config_fname);
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char *config_fname;
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struct hostapd_config *conf;
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size_t num_bss;
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struct hostapd_data **bss;
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int num_ap; /* number of entries in ap_list */
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struct ap_info *ap_list; /* AP info list head */
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struct ap_info *ap_hash[STA_HASH_SIZE];
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struct ap_info *ap_iter_list;
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struct hostapd_hw_modes *hw_features;
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int num_hw_features;
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struct hostapd_hw_modes *current_mode;
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/* Rates that are currently used (i.e., filtered copy of
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* current_mode->channels */
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int num_rates;
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struct hostapd_rate_data *current_rates;
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int freq;
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u16 hw_flags;
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/* Number of associated Non-ERP stations (i.e., stations using 802.11b
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* in 802.11g BSS) */
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int num_sta_non_erp;
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/* Number of associated stations that do not support Short Slot Time */
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int num_sta_no_short_slot_time;
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/* Number of associated stations that do not support Short Preamble */
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int num_sta_no_short_preamble;
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int olbc; /* Overlapping Legacy BSS Condition */
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/* Number of HT associated stations that do not support greenfield */
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int num_sta_ht_no_gf;
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/* Number of associated non-HT stations */
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int num_sta_no_ht;
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/* Number of HT associated stations 20 MHz */
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int num_sta_ht_20mhz;
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/* Overlapping BSS information */
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int olbc_ht;
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u16 ht_op_mode;
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void (*scan_cb)(struct hostapd_iface *iface);
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int (*ctrl_iface_init)(struct hostapd_data *hapd);
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void (*ctrl_iface_deinit)(struct hostapd_data *hapd);
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int (*for_each_interface)(struct hapd_interfaces *interfaces,
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int (*cb)(struct hostapd_iface *iface,
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void *ctx), void *ctx);
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};
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/* hostapd.c */
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int hostapd_reload_config(struct hostapd_iface *iface);
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struct hostapd_data *
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hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
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struct hostapd_config *conf,
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struct hostapd_bss_config *bss);
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int hostapd_setup_interface(struct hostapd_iface *iface);
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int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
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void hostapd_interface_deinit(struct hostapd_iface *iface);
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void hostapd_interface_free(struct hostapd_iface *iface);
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void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
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int reassoc);
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/* utils.c */
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int hostapd_register_probereq_cb(struct hostapd_data *hapd,
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int (*cb)(void *ctx, const u8 *sa,
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const u8 *ie, size_t ie_len),
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void *ctx);
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void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr);
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/* drv_callbacks.c (TODO: move to somewhere else?) */
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int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
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const u8 *ie, size_t ielen);
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void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);
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void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr);
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#endif /* HOSTAPD_H */
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