1 files changed, 114 insertions, 0 deletions
diff --git a/src/libcharon/config/backend_manager.h b/src/libcharon/config/backend_manager.h
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+++ b/src/libcharon/config/backend_manager.h
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+/*
+ * 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.
+ */
+
+/**
+ * @defgroup backend_manager backend_manager
+ * @{ @ingroup config
+ */
+
+#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/backend.h>
+
+
+/**
+ * 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.
+ * @verbatim
+
+   +---------+      +-----------+         +--------------+     |
+   |         |      |           |       +--------------+ |     |
+   | daemon  |----->| backend_- |     +--------------+ |-+  <==|==> IPC
+   |  core   |      | manager   |---->|   backends   |-+       |
+   |         |----->|           |     +--------------+         |
+   |         |      |           |                              |
+   +---------+      +-----------+                              |
+
+   @endverbatim
+ */
+struct backend_manager_t {
+
+	/**
+	 * Get an ike_config identified by two hosts.
+	 *
+	 * @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);
+
+	/**
+	 * Get a peer_config identified by it's name.
+	 *
+	 * @param name				name of the peer_config
+	 * @return					matching peer_config, or NULL if none found
+	 */
+	peer_cfg_t* (*get_peer_cfg_by_name)(backend_manager_t *this, char *name);
+
+	/**
+	 * Create an enumerator over all matching peer configs.
+	 *
+	 * Pass NULL as parameters to match any. The enumerator enumerates over
+	 * peer_cfgs, ordered by priority (best match first).
+	 *
+	 * @param me				local address
+	 * @param other				remote address
+	 * @param my_id				IDr in first authentication round
+	 * @param other_id			IDi in first authentication round
+	 * @return 					enumerator over peer_cfg_t
+	 */
+	enumerator_t* (*create_peer_cfg_enumerator)(backend_manager_t *this,
+							host_t *me, host_t *other, identification_t *my_id,
+							identification_t *other_id);
+	/**
+	 * Register a backend on the manager.
+	 *
+	 * @param backend			backend to register
+	 */
+	void (*add_backend)(backend_manager_t *this, backend_t *backend);
+
+	/**
+	 * Unregister a backend.
+	 *
+	 * @param backend			backend to unregister
+	 */
+	void (*remove_backend)(backend_manager_t *this, backend_t *backend);
+
+	/**
+	 * Destroys a backend_manager_t object.
+	 */
+	void (*destroy) (backend_manager_t *this);
+};
+
+/**
+ * Create an instance of the backend manager
+ *
+ * @return		backend_manager instance
+ */
+backend_manager_t* backend_manager_create(void);
+
+#endif /** BACKEND_MANAGER_H_ @}*/