/*
 * Copyright (C) 2013 Tobias Brunner
 *
 * Copyright (C) secunet Security Networks AG
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 */

/**
 * @defgroup kernel_libipsec_router kernel_libipsec_router
 * @{ @ingroup kernel_libipsec
 */

#ifndef KERNEL_LIBIPSEC_ROUTER_H_
#define KERNEL_LIBIPSEC_ROUTER_H_

#include <kernel/kernel_listener.h>

typedef struct kernel_libipsec_router_t kernel_libipsec_router_t;

/**
 * Class that routes the network packets between TUN device, libipsec and
 * charon's IKE socket.
 */
struct kernel_libipsec_router_t {

	/**
	 * Implements kernel_listener_t interface
	 */
	kernel_listener_t listener;

	/**
	 * Get the name of the TUN device to be used with the given virtual IP.
	 *
	 * @param vip	virtual IP
	 * @return		allocated name
	 */
	char *(*get_tun_name)(kernel_libipsec_router_t *this, host_t *vip);

	/**
	 * Destroy the given instance
	 */
	void (*destroy)(kernel_libipsec_router_t *this);
};

/**
 * Single instance of this class, if created
 */
extern kernel_libipsec_router_t *router;

/**
 * Create a kernel_libipsec_router_t instance.
 *
 * @return			kernel_libipsec_router_t instance
 */
kernel_libipsec_router_t *kernel_libipsec_router_create();

#endif /** KERNEL_LIBIPSEC_ROUTER_H_ @}*/
