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diff --git a/src/charon/config/backends/local_backend.h b/src/charon/config/backends/local_backend.h
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+++ b/src/charon/config/backends/local_backend.h
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+/**
+ * @file local_backend.h
+ *
+ * @brief Interface of local_backend_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 LOCAL_BACKEND_H_
+#define LOCAL_BACKEND_H_
+
+typedef struct local_backend_t local_backend_t;
+
+#include <library.h>
+#include <config/backends/backend.h>
+
+/**
+ * @brief An in-memory backend to store configuration information.
+ *
+ * The local_backend_t stores the configuration in a simple list. Additional
+ * to the backend_t functionality, it adds the modification (add/remove).
+ *
+ * @b Constructors:
+ *  - local_backend_create()
+ * 
+ * @ingroup backends
+ */
+struct local_backend_t {
+	
+	/**
+	 * Implements backend_t interface
+	 */
+	backend_t backend;
+	
+	/**
+	 * @brief Add a peer_config to the backend.
+	 *
+	 * @param this		calling object
+	 * @param config	peer_config to add to the backend
+	 */
+	void (*add_peer_cfg)(local_backend_t *this, peer_cfg_t *config);
+	
+	/**
+	 * @brief Create an iterator over all peer configs.
+	 *
+	 * @param this		calling object
+	 * @return 			iterator over peer configs
+	 */
+	iterator_t* (*create_peer_cfg_iterator)(local_backend_t *this);
+	
+	/**
+	 * @brief Destroy a local backend.
+	 *
+	 * @param this		calling object
+	 */
+	void (*destroy)(local_backend_t *this);
+};
+
+/**
+ * @brief Creates a local_backend_t instance.
+ *
+ * @return local_backend instance.
+ * 
+ * @ingroup config
+ */
+local_backend_t *local_backend_create(void);
+
+#endif /* LOCAL_BACKEND_H_ */