107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
/*
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* Copyright (C) 2005-2006 Martin Willi
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* Copyright (C) 2005 Jan Hutter
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* $Id$
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*/
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/**
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* @defgroup ke_payload ke_payload
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* @{ @ingroup payloads
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*/
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#ifndef KE_PAYLOAD_H_
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#define KE_PAYLOAD_H_
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typedef struct ke_payload_t ke_payload_t;
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#include <library.h>
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#include <encoding/payloads/payload.h>
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#include <encoding/payloads/transform_substructure.h>
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#include <utils/linked_list.h>
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#include <crypto/diffie_hellman.h>
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/**
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* KE payload length in bytes without any key exchange data.
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*/
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#define KE_PAYLOAD_HEADER_LENGTH 8
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/**
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* Class representing an IKEv2-KE Payload.
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*
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* The KE Payload format is described in RFC section 3.4.
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*/
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struct ke_payload_t {
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/**
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* The payload_t interface.
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*/
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payload_t payload_interface;
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/**
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* Returns the currently set key exchange data of this KE payload.
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*
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* @warning Returned data are not copied.
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*
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* @return chunk_t pointing to the value
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*/
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chunk_t (*get_key_exchange_data) (ke_payload_t *this);
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/**
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* Sets the key exchange data of this KE payload.
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*
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* Value is getting copied.
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*
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* @param key_exchange_data chunk_t pointing to the value to set
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*/
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void (*set_key_exchange_data) (ke_payload_t *this, chunk_t key_exchange_data);
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/**
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* Gets the Diffie-Hellman Group Number of this KE payload.
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*
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* @return DH Group Number of this payload
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*/
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diffie_hellman_group_t (*get_dh_group_number) (ke_payload_t *this);
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/**
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* Sets the Diffie-Hellman Group Number of this KE payload.
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*
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* @param dh_group_number DH Group to set
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*/
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void (*set_dh_group_number) (ke_payload_t *this,
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diffie_hellman_group_t dh_group_number);
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/**
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* Destroys an ke_payload_t object.
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*/
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void (*destroy) (ke_payload_t *this);
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};
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/**
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* Creates an empty ke_payload_t object
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*
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* @return ke_payload_t object
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*/
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ke_payload_t *ke_payload_create(void);
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/**
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* Creates a ke_payload_t from a diffie_hellman_t
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*
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* @param diffie_hellman diffie hellman object containing group and key
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* @return ke_payload_t object
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*/
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ke_payload_t *ke_payload_create_from_diffie_hellman(
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diffie_hellman_t *diffie_hellman);
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#endif /** KE_PAYLOAD_H_ @}*/
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