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/**
* @file cfg_store.h
*
* @brief Interface cfg_store_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 CFG_STORE_H_
#define CFG_STORE_H_
typedef struct cfg_store_t cfg_store_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 multiplexer to use multiple cfg_store backends.
*
* Charon allows the use of multiple cfg_store backends simultaneously. To
* access all this backends by a single call, this class wraps multiple
* backends behind a single object.
* Backends may be registered and unregister at runtime dynamically.
* @verbatim
+---------+ +-----------+ +--------------+ |
| | | | +--------------+ | |
| daemon |----->| cfg_store | +--------------+ |-+ <==|==> IPC
| core | | |---->| backends |-+ |
| |----->| | +--------------+ |
| | | | |
+---------+ +-----------+ |
@endverbatim
* Configuration lookup is done only when acting as responder. For initating
* the corresponding controller is responsible to get a config to initiate.
*
* @b Constructors:
* - cfg_store_create()
*
* @ingroup config
*/
struct cfg_store_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)(cfg_store_t *this,
host_t *my_host, host_t *other_host);
/**
* @brief Get a peer_config identified by two IDs.
*
* @param this calling object
* @param my_id own ID
* @param other_id peers ID
* @return matching peer_config, or NULL if none found
*/
peer_cfg_t *(*get_peer_cfg)(cfg_store_t *this, identification_t *my_id,
identification_t *other_id);
/**
* @brief Register a backend to be queried by the calls above.
*
* The backend first added is the most preferred.
*
* @param this calling object
*/
void (*register_backend) (cfg_store_t *this, backend_t *backend);
/**
* @brief Unregister a backend.
*
* @param this calling object
*/
void (*unregister_backend) (cfg_store_t *this, backend_t *backend);
/**
* @brief Destroys a cfg_store_t object.
*
* @param this calling object
*/
void (*destroy) (cfg_store_t *this);
};
/**
* @brief Create a new instance of the store.
*
* @return cfg_store instance
*
* @ingroup config
*/
cfg_store_t *cfg_store_create(void);
#endif /*CFG_STORE_H_*/
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