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diff --git a/src/libcharon/encoding/payloads/fragment_payload.h b/src/libcharon/encoding/payloads/fragment_payload.h
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+++ b/src/libcharon/encoding/payloads/fragment_payload.h
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+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * 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 fragment_payload fragment_payload
+ * @{ @ingroup payloads
+ */
+
+#ifndef FRAGMENT_PAYLOAD_H_
+#define FRAGMENT_PAYLOAD_H_
+
+typedef struct fragment_payload_t fragment_payload_t;
+
+#include <library.h>
+#include <encoding/payloads/payload.h>
+
+/**
+ * Object representing an IKEv1 fragment payload.
+ */
+struct fragment_payload_t {
+
+	/**
+	 * The payload_t interface.
+	 */
+	payload_t payload_interface;
+
+	/**
+	 * Get the fragment ID. Identifies the fragments for a particular IKE
+	 * message.
+	 *
+	 * @return				fragment ID
+	 */
+	u_int16_t (*get_id)(fragment_payload_t *this);
+
+	/**
+	 * Get the fragment number. Defines the order of the fragments.
+	 *
+	 * @return				fragment number
+	 */
+	u_int8_t (*get_number)(fragment_payload_t *this);
+
+	/**
+	 * Check if this is the last fragment.
+	 *
+	 * @return				TRUE if this is the last fragment
+	 */
+	bool (*is_last)(fragment_payload_t *this);
+
+	/**
+	 * Get the fragment data.
+	 *
+	 * @return				chunkt to internal fragment data
+	 */
+	chunk_t (*get_data)(fragment_payload_t *this);
+
+	/**
+	 * Destroys an fragment_payload_t object.
+	 */
+	void (*destroy)(fragment_payload_t *this);
+};
+
+/**
+ * Creates an empty fragment_payload_t object.
+ *
+ * @return			fragment_payload_t object
+ */
+fragment_payload_t *fragment_payload_create();
+
+/**
+ * Creates a fragment payload from the given data.  All fragments currently
+ * have the same fragment ID (1), which seems what other implementations are
+ * doing.
+ *
+ * @param num		fragment number (first one should be 1)
+ * @param last		TRUE to indicate that this is the last fragment
+ * @param data		fragment data (gets cloned)
+ * @return			fragment_payload_t object
+ */
+fragment_payload_t *fragment_payload_create_from_data(u_int8_t num, bool last,
+													  chunk_t data);
+
+#endif /** FRAGMENT_PAYLOAD_H_ @}*/