96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
/*
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* Copyright (C) 2012 Martin Willi
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* Copyright (C) 2012 revosec AG
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup lookip_listener lookip_listener
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* @{ @ingroup lookip
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*/
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#ifndef LOOKIP_LISTENER_H_
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#define LOOKIP_LISTENER_H_
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#include <bus/listeners/listener.h>
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typedef struct lookip_listener_t lookip_listener_t;
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/**
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* Callback function to query virtual IP entries
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*
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* @param user user supplied pointer
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* @param up TRUE if tunnels established, FALSE if closed
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* @param vip virtual IP of remote peer
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* @param other peer external IP
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* @param id peer identity
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* @param name associated connection name
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* @param unique_id unique IKE_SA identifier
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* @return TRUE to receive more results, FALSE to cancel
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*/
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typedef bool (*lookip_callback_t)(void *user, bool up, host_t *vip,
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host_t *other, identification_t *id,
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char *name, u_int unique_id);
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/**
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* Listener collecting virtual IPs.
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*/
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struct lookip_listener_t {
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/**
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* Implements listener_t interface.
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*/
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listener_t listener;
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/**
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* Perform a lookup for a given virtual IP, invoke callback for matches.
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*
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* The "up" parameter is always TRUE when the callback is invoked using
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* lookup().
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*
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* @param vip virtual IP to look up, NULL to get all entries
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* @param cb callback function to invoke
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* @param user user data to pass to callback function
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* @return number of matches
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*/
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int (*lookup)(lookip_listener_t *this, host_t *vip,
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lookip_callback_t cb, void *user);
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/**
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* Register a listener function that gets notified about virtual IP changes.
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*
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* @param cb callback function to invoke
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* @param user user data to pass to callback function
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*/
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void (*add_listener)(lookip_listener_t *this,
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lookip_callback_t cb, void *user);
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/**
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* Unregister a listener by the user data.
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*
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* @param user user data, as passed during add_listener()
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*/
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void (*remove_listener)(lookip_listener_t *this, void *user);
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/**
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* Destroy a lookip_listener_t.
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*/
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void (*destroy)(lookip_listener_t *this);
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};
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/**
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* Create a lookip_listener instance.
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*/
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lookip_listener_t *lookip_listener_create();
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#endif /** LOOKIP_LISTENER_H_ @}*/
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