- created encoding package

2005-11-23 09:57:18 +00:00
parent 716abc9f83
commit 4a96223884
44 changed files with 99 additions and 100 deletions
@@ -0,0 +1,242 @@
+/**
+ * @file ike_header.h
+ * 
+ * @brief Declaration of the class ike_header_t. 
+ * 
+ * An object of this type represents an ike header and is used to 
+ * generate and parse ike headers.
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, 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 IKE_HEADER_H_
+#define IKE_HEADER_H_
+
+#include <types.h>
+#include <encoding/payloads/payload.h>
+
+/**
+ * Major Version of IKEv2
+ */
+#define IKE_MAJOR_VERSION 2
+
+/**
+ * Minor Version of IKEv2
+ */
+#define IKE_MINOR_VERSION 0
+
+/**
+ * Flag in IKEv2-Header. Always 0
+ */
+#define HIGHER_VERSION_SUPPORTED_FLAG 0
+
+/**
+ * Length of IKE Header in Bytes
+ */
+#define IKE_HEADER_LENGTH 28
+
+/**
+ * @brief Different types of IKE-Exchanges.
+ *
+ * See RFC for different types.
+ */
+typedef enum exchange_type_e exchange_type_t;
+
+enum exchange_type_e{
+
+	/**
+	 * EXCHANGE_TYPE_UNDEFINED, not a official message type :-)
+	 */
+	EXCHANGE_TYPE_UNDEFINED = 240,
+	/**
+	 * IKE_SA_INIT
+	 */
+	IKE_SA_INIT = 34,
+	/**
+	 * IKE_AUTH
+	 */
+	IKE_AUTH = 35,
+	/**
+	 * CREATE_CHILD_SA
+	 */
+	CREATE_CHILD_SA = 36,
+	/**
+	 * INFORMATIONAL
+	 */
+	INFORMATIONAL = 37 
+};
+
+extern mapping_t exchange_type_m[];
+
+/**
+ * Object representing an IKEv2-Header
+ * 
+ * The header format of an IKEv2-Message is compatible to the 
+ * ISAKMP-Header format to allow implementations supporting 
+ * both versions of the IKE-protocol.
+ * 
+ */
+typedef struct ike_header_s ike_header_t;
+
+struct ike_header_s {
+	/**
+	 * implements payload_t interface
+	 */
+	payload_t payload_interface;
+	
+	/**
+	 * @brief get the initiator spi
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				initiator_spi
+	 */
+	u_int64_t (*get_initiator_spi) (ike_header_t *this);
+	
+	/**
+	 * @brief set the initiator spi
+	 *
+	 * @param this 			ike_header_t object
+	 * @param initiator_spi	initiator_spi
+	 */
+	void (*set_initiator_spi) (ike_header_t *this, u_int64_t initiator_spi);
+	
+	/**
+	 * @brief get the responder spi
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				responder_spi
+	 */
+	u_int64_t (*get_responder_spi) (ike_header_t *this);
+	
+	/**
+	 * @brief set the responder spi
+	 *
+	 * @param this 			ike_header_t object
+	 * @param responder_spi	responder_spi
+	 */
+	void (*set_responder_spi) (ike_header_t *this, u_int64_t responder_spi);
+	
+	/**
+	 * @brief get the major version
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				major version
+	 */
+	u_int8_t (*get_maj_version) (ike_header_t *this);
+	
+	/**
+	 * @brief get the mainor version
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				minor version
+	 */
+	u_int8_t (*get_min_version) (ike_header_t *this);
+	
+	/**
+	 * @brief get the response flag
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				response flag
+	 */
+	bool (*get_response_flag) (ike_header_t *this);
+	
+	/**
+	 * @brief Set the response flag
+	 *
+	 * @param this 			ike_header_t object
+	 * @param response		response flag
+	 * 
+	 */
+	void (*set_response_flag) (ike_header_t *this, bool response);
+	/**
+	 * @brief get "higher version supported"-flag
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				version flag
+	 */
+	bool (*get_version_flag) (ike_header_t *this);
+	
+	/**
+	 * @brief get the initiator flag
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				initiator flag
+	 */
+	bool (*get_initiator_flag) (ike_header_t *this);
+	
+	/**
+	 * @brief Set the initiator flag
+	 *
+	 * @param this 			ike_header_t object
+	 * @param initiator		initiator flag
+	 * 
+	 */
+	void (*set_initiator_flag) (ike_header_t *this, bool initiator);
+
+	/**
+	 * @brief get the exchange type
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				 exchange type
+	 */
+	u_int8_t (*get_exchange_type) (ike_header_t *this);
+	
+	/**
+	 * @brief set the  exchange type
+	 *
+	 * @param this 			ike_header_t object
+	 * @param exchange_type	exchange type
+	 */
+	void (*set_exchange_type) (ike_header_t *this, u_int8_t exchange_type);
+	
+	/**
+	 * @brief get the message id
+	 *
+	 * @param this 			ike_header_t object
+	 * @return 				message id
+	 */
+	u_int32_t (*get_message_id) (ike_header_t *this);
+	
+	/**
+	 * @brief set the message id
+	 *
+	 * @param this 			ike_header_t object
+	 * @param initiator_spi	message id
+	 */
+	void (*set_message_id) (ike_header_t *this, u_int32_t message_id);
+	
+	/**
+	 * @brief Destroys a ike_header_t object.
+	 *
+	 * @param this 	ike_header_t object to destroy
+	 * @return 		
+	 * 				SUCCESS in any case
+	 */
+	status_t (*destroy) (ike_header_t *this);
+};
+
+/**
+ * @brief Create an ike_header_t object
+ * 
+ * @return			
+ * 					- created ike_header, or
+ * 					- NULL if failed
+ */
+ 
+ike_header_t *ike_header_create();
+
+#endif /*IKE_HEADER_H_*/