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