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/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005 Jan Hutter
* HSR 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 ke_payload ke_payload
* @{ @ingroup payloads
*/
#ifndef KE_PAYLOAD_H_
#define KE_PAYLOAD_H_
typedef struct ke_payload_t ke_payload_t;
#include <library.h>
#include <encoding/payloads/payload.h>
#include <encoding/payloads/transform_substructure.h>
#include <collections/linked_list.h>
#include <crypto/diffie_hellman.h>
/**
* Class representing an IKEv1 or IKEv2 key exchange payload.
*/
struct ke_payload_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* Returns the key exchange data of this KE payload.
*
* @return chunk_t pointing to internal data
*/
chunk_t (*get_key_exchange_data) (ke_payload_t *this);
/**
* Gets the Diffie-Hellman Group Number of this KE payload (IKEv2 only).
*
* @return DH Group Number of this payload
*/
diffie_hellman_group_t (*get_dh_group_number) (ke_payload_t *this);
/**
* Destroys a ke_payload_t object.
*/
void (*destroy) (ke_payload_t *this);
};
/**
* Creates an empty ke_payload_t object.
*
* @param type PLV2_KEY_EXCHANGE or PLV1_KEY_EXCHANGE
* @return ke_payload_t object
*/
ke_payload_t *ke_payload_create(payload_type_t type);
/**
* Creates a ke_payload_t from a diffie_hellman_t.
*
* @param type PLV2_KEY_EXCHANGE or PLV1_KEY_EXCHANGE
* @param dh diffie hellman object containing group and key
* @return ke_payload_t object, NULL on error
*/
ke_payload_t *ke_payload_create_from_diffie_hellman(payload_type_t type,
diffie_hellman_t *dh);
#endif /** KE_PAYLOAD_H_ @}*/
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