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diff --git a/src/libcharon/encoding/payloads/cp_payload.h b/src/libcharon/encoding/payloads/cp_payload.h
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+++ b/src/libcharon/encoding/payloads/cp_payload.h
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+/*
+ * Copyright (C) 2005-2009 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * 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 cp_payload cp_payload
+ * @{ @ingroup payloads
+ */
+
+#ifndef CP_PAYLOAD_H_
+#define CP_PAYLOAD_H_
+
+typedef enum config_type_t config_type_t;
+typedef struct cp_payload_t cp_payload_t;
+
+#include <library.h>
+#include <encoding/payloads/payload.h>
+#include <encoding/payloads/configuration_attribute.h>
+#include <utils/enumerator.h>
+
+/**
+ * CP_PAYLOAD length in bytes without any proposal substructure.
+ */
+#define CP_PAYLOAD_HEADER_LENGTH 8
+
+/**
+ * Config Type of an Configuration Payload.
+ */
+enum config_type_t {
+	CFG_REQUEST = 1,
+	CFG_REPLY = 2,
+	CFG_SET = 3,
+	CFG_ACK = 4,
+};
+
+/**
+ * enum name for config_type_t.
+ */
+extern enum_name_t *config_type_names;
+
+/**
+ * Class representing an IKEv2-CP Payload.
+ *
+ * The CP Payload format is described in RFC section 3.15.
+ */
+struct cp_payload_t {
+
+	/**
+	 * The payload_t interface.
+	 */
+	payload_t payload_interface;
+
+	/**
+	 * Creates an iterator of stored configuration_attribute_t objects.
+	 *
+	 * @return			enumerator over configration_attribute_T
+	 */
+	enumerator_t *(*create_attribute_enumerator) (cp_payload_t *this);
+
+	/**
+	 * Adds a configuration attribute to the configuration payload.
+	 *
+	 * @param attribute	attribute to add
+	 */
+	void (*add_attribute)(cp_payload_t *this,
+						  configuration_attribute_t *attribute);
+
+	/**
+	 * Get the configuration payload type.
+	 *
+	 * @return			type of configuration payload
+	 */
+	config_type_t (*get_type) (cp_payload_t *this);
+
+	/**
+	 * Destroys an cp_payload_t object.
+	 */
+	void (*destroy) (cp_payload_t *this);
+};
+
+/**
+ * Creates an empty configuration payload
+ *
+ * @return		empty configuration payload
+ */
+cp_payload_t *cp_payload_create();
+
+/**
+ * Creates an cp_payload_t with type and value
+ *
+ * @param config_type	type of configuration payload to create
+ * @return				created configuration payload
+ */
+cp_payload_t *cp_payload_create_type(config_type_t config_type);
+
+#endif /** CP_PAYLOAD_H_ @}*/