ikev2: Add encrypted fragment payload

2014-10-10 09:32:37 +02:00
parent edfd33455c
commit 4c345b15c7
5 changed files with 456 additions and 13 deletions
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2014 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 encrypted_fragment_payload encrypted_fragment_payload
+ * @{ @ingroup payloads
+ */
+
+#ifndef ENCRYPTED_FRAGMENT_PAYLOAD_H_
+#define ENCRYPTED_FRAGMENT_PAYLOAD_H_
+
+typedef struct encrypted_fragment_payload_t encrypted_fragment_payload_t;
+
+#include <encoding/payloads/encrypted_payload.h>
+
+/**
+ * The Encrypted Fragment Payload as described in RFC 7383
+ *
+ * The implementation is located in encrypted_payload.c as it is very similar.
+ */
+struct encrypted_fragment_payload_t {
+
+	/**
+	 * Implements payload_t interface.
+	 */
+	encrypted_payload_t encrypted;
+
+	/**
+	 * Get the fragment number.
+	 *
+	 * @return			fragment number
+	 */
+	u_int16_t (*get_fragment_number)(encrypted_fragment_payload_t *this);
+
+	/**
+	 * Get the total number of fragments.
+	 *
+	 * @return			total number of fragments
+	 */
+	u_int16_t (*get_total_fragments)(encrypted_fragment_payload_t *this);
+
+	/**
+	 * Get the (decrypted) content of this payload.
+	 *
+	 * @return			internal payload data
+	 */
+	chunk_t (*get_content)(encrypted_fragment_payload_t *this);
+
+	/**
+	 * Destroys an encrypted_fragment_payload_t object.
+	 */
+	void (*destroy)(encrypted_fragment_payload_t *this);
+};
+
+/**
+ * Creates an empty encrypted_fragment_payload_t object.
+ *
+ * @return			encrypted_fragment_payload_t object
+ */
+encrypted_fragment_payload_t *encrypted_fragment_payload_create();
+
+/**
+ * Creates an encrypted fragment payload from the given data.
+ *
+ * @param num		fragment number (first one should be 1)
+ * @param total		total number of fragments
+ * @param data		fragment data (gets cloned)
+ * @return			encrypted_fragment_payload_t object
+ */
+encrypted_fragment_payload_t *encrypted_fragment_payload_create_from_data(
+								u_int16_t num, u_int16_t total, chunk_t data);
+
+#endif /** ENCRYPTED_FRAGMENT_PAYLOAD_H_ @}*/