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Diffstat (limited to 'src/libcharon/encoding/payloads/ike_header.h')
| -rw-r--r-- | src/libcharon/encoding/payloads/ike_header.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/src/libcharon/encoding/payloads/ike_header.h b/src/libcharon/encoding/payloads/ike_header.h new file mode 100644 index 000000000..e63e8bf06 --- /dev/null +++ b/src/libcharon/encoding/payloads/ike_header.h @@ -0,0 +1,227 @@ +/* + * Copyright (C) 2007 Tobias Brunner + * Copyright (C) 2005-2006 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 ike_header ike_header + * @{ @ingroup payloads + */ + +#ifndef IKE_HEADER_H_ +#define IKE_HEADER_H_ + +typedef enum exchange_type_t exchange_type_t; +typedef struct ike_header_t ike_header_t; + +#include <library.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 + +/** + * Different types of IKE-Exchanges. + * + * See RFC for different types. + */ +enum exchange_type_t{ + + /** + * EXCHANGE_TYPE_UNDEFINED. In private space, since not a official message type. + */ + EXCHANGE_TYPE_UNDEFINED = 255, + + /** + * IKE_SA_INIT. + */ + IKE_SA_INIT = 34, + + /** + * IKE_AUTH. + */ + IKE_AUTH = 35, + + /** + * CREATE_CHILD_SA. + */ + CREATE_CHILD_SA = 36, + + /** + * INFORMATIONAL. + */ + INFORMATIONAL = 37, +#ifdef ME + /** + * ME_CONNECT + */ + ME_CONNECT = 240 +#endif /* ME */ +}; + +/** + * enum name for exchange_type_t + */ +extern enum_name_t *exchange_type_names; + +/** + * An object of this type represents an IKEv2 header and is used to + * generate and parse IKEv2 headers. + * + * The header format of an IKEv2-Message is compatible to the + * ISAKMP-Header format to allow implementations supporting + * both versions of the IKE-protocol. + */ +struct ike_header_t { + /** + * The payload_t interface. + */ + payload_t payload_interface; + + /** + * Get the initiator spi. + * + * @return initiator_spi + */ + u_int64_t (*get_initiator_spi) (ike_header_t *this); + + /** + * Set the initiator spi. + * + * @param initiator_spi initiator_spi + */ + void (*set_initiator_spi) (ike_header_t *this, u_int64_t initiator_spi); + + /** + * Get the responder spi. + * + * @return responder_spi + */ + u_int64_t (*get_responder_spi) (ike_header_t *this); + + /** + * Set the responder spi. + * + * @param responder_spi responder_spi + */ + void (*set_responder_spi) (ike_header_t *this, u_int64_t responder_spi); + + /** + * Get the major version. + * + * @return major version + */ + u_int8_t (*get_maj_version) (ike_header_t *this); + + /** + * Get the minor version. + * + * @return minor version + */ + u_int8_t (*get_min_version) (ike_header_t *this); + + /** + * Get the response flag. + * + * @return response flag + */ + bool (*get_response_flag) (ike_header_t *this); + + /** + * Set the response flag- + * + * @param response response flag + */ + void (*set_response_flag) (ike_header_t *this, bool response); + /** + * Get "higher version supported"-flag. + * + * @return version flag + */ + bool (*get_version_flag) (ike_header_t *this); + + /** + * Get the initiator flag. + * + * @return initiator flag + */ + bool (*get_initiator_flag) (ike_header_t *this); + + /** + * Set the initiator flag. + * + * @param initiator initiator flag + */ + void (*set_initiator_flag) (ike_header_t *this, bool initiator); + + /** + * Get the exchange type. + * + * @return exchange type + */ + u_int8_t (*get_exchange_type) (ike_header_t *this); + + /** + * Set the exchange type. + * + * @param exchange_type exchange type + */ + void (*set_exchange_type) (ike_header_t *this, u_int8_t exchange_type); + + /** + * Get the message id. + * + * @return message id + */ + u_int32_t (*get_message_id) (ike_header_t *this); + + /** + * Set the message id. + * + * @param initiator_spi message id + */ + void (*set_message_id) (ike_header_t *this, u_int32_t message_id); + + /** + * Destroys a ike_header_t object. + */ + void (*destroy) (ike_header_t *this); +}; + +/** + * Create an ike_header_t object + * + * @return ike_header_t object + */ +ike_header_t *ike_header_create(void); + +#endif /** IKE_HEADER_H_ @}*/ |