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/*
* Copyright (C) 2007-2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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 backend backend
* @{ @ingroup config
*/
#ifndef BACKEND_H_
#define BACKEND_H_
typedef struct backend_t backend_t;
#include <library.h>
#include <config/ike_cfg.h>
#include <config/peer_cfg.h>
#include <collections/linked_list.h>
/**
* The interface for a configuration backend.
*
* A configuration backend is loaded into the backend_manager. It does the actual
* configuration lookup for the method it implements. See backend_manager_t for
* more information.
*/
struct backend_t {
/**
* Create an enumerator over all IKE configs matching two hosts.
*
* Hosts may be NULL to get all.
*
* There is no requirement for the backend to filter the configurations
* using the supplied hosts; but it may do so if it increases lookup times
* (e.g. include hosts in SQL query).
*
* @param me address of local host
* @param other address of remote host
* @return enumerator over ike_cfg_t's
*/
enumerator_t* (*create_ike_cfg_enumerator)(backend_t *this,
host_t *me, host_t *other);
/**
* Create an enumerator over all peer configs matching two identities.
*
* IDs may be NULL to get all.
*
* As configurations are looked up in the first authentication round (when
* multiple authentication), the backend implementation should compare
* the identities to the first auth_cfgs only.
* There is no requirement for the backend to filter the configurations
* using the supplied identities; but it may do so if it increases lookup
* times (e.g. include hosts in SQL query).
*
* @param me identity of ourself
* @param other identity of remote host
* @return enumerator over peer_cfg_t
*/
enumerator_t* (*create_peer_cfg_enumerator)(backend_t *this,
identification_t *me,
identification_t *other);
/**
* Get a peer_cfg identified by it's name, or a name of its children.
*
* @param name name of peer/child cfg
* @return matching peer_config, or NULL if none found
*/
peer_cfg_t *(*get_peer_cfg_by_name)(backend_t *this, char *name);
};
#endif /** BACKEND_H_ @}*/
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