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/**
* @file backend_manager.h
*
* @brief Interface backend_manager_t.
*
*/
/*
* Copyright (C) 2007 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.
*/
#ifndef BACKEND_MANAGER_H_
#define BACKEND_MANAGER_H_
typedef struct backend_manager_t backend_manager_t;
#include <library.h>
#include <utils/host.h>
#include <utils/identification.h>
#include <config/ike_cfg.h>
#include <config/peer_cfg.h>
#include <config/backends/backend.h>
/**
* @brief A loader and multiplexer to use multiple backends.
*
* Charon allows the use of multiple configuration backends simultaneously. To
* access all this backends by a single call, this class wraps multiple
* backends behind a single object. It is also responsible for loading
* the backend modules and cleaning them up.
* A backend may be writeable or not. All backends implement the backend_t
* interface, those who are writeable additionally implement the
* writeable_backend_t interface. Adding configs to the backend_manager will
* be redirected to the first writeable backend.
* @verbatim
+---------+ +-----------+ +--------------+ |
| | | | +--------------+ | |
| daemon |----->| backend_- | +--------------+ |-+ <==|==> IPC
| core | | manager |---->| backends |-+ |
| |----->| | +--------------+ |
| | | | |
+---------+ +-----------+ |
@endverbatim
*
* @b Constructors:
* - backend_manager_create()
*
* @ingroup config
*/
struct backend_manager_t {
/**
* @brief Get an ike_config identified by two hosts.
*
* @param this calling object
* @param my_host address of own host
* @param other_host address of remote host
* @return matching ike_config, or NULL if none found
*/
ike_cfg_t* (*get_ike_cfg)(backend_manager_t *this,
host_t *my_host, host_t *other_host);
/**
* @brief Get a peer_config identified by two IDs and the peer's certificate issuer
*
* @param this calling object
* @param my_id own ID
* @param other_id peer ID
* @param other_ca_info info record on issuer of peer certificate
* @return matching peer_config, or NULL if none found
*/
peer_cfg_t* (*get_peer_cfg)(backend_manager_t *this,
identification_t *my_id, identification_t *other_id,
ca_info_t *other_ca_info);
/**
* @brief Add a peer_config to the first found writable backend.
*
* @param this calling object
* @param config peer_config to add to the backend
*/
void (*add_peer_cfg)(backend_manager_t *this, peer_cfg_t *config);
/**
* @brief Create an iterator over all peer configs of the writable backend.
*
* @param this calling object
* @return iterator over peer configs
*/
iterator_t* (*create_iterator)(backend_manager_t *this);
/**
* @brief Destroys a backend_manager_t object.
*
* @param this calling object
*/
void (*destroy) (backend_manager_t *this);
};
/**
* @brief Creates a new instance of the manager and loads all backends.
*
* @return backend_manager instance
*
* @ingroup config
*/
backend_manager_t* backend_manager_create(void);
#endif /*BACKEND_MANAGER_H_*/
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