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/*
* 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 transform_substructure transform_substructure
* @{ @ingroup payloads
*/
#ifndef TRANSFORM_SUBSTRUCTURE_H_
#define TRANSFORM_SUBSTRUCTURE_H_
typedef struct transform_substructure_t transform_substructure_t;
#include <library.h>
#include <encoding/payloads/payload.h>
#include <encoding/payloads/transform_attribute.h>
#include <collections/linked_list.h>
#include <crypto/diffie_hellman.h>
#include <crypto/signers/signer.h>
#include <crypto/prfs/prf.h>
#include <crypto/crypters/crypter.h>
#include <config/proposal.h>
/**
* IKEv1 Value for a transform payload.
*/
#define TRANSFORM_TYPE_VALUE 3
/**
* Class representing an IKEv1/IKEv2 transform substructure.
*/
struct transform_substructure_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* Adds a transform_attribute_t object to this object.
*
* @param proposal transform_attribute_t object to add
*/
void (*add_transform_attribute) (transform_substructure_t *this,
transform_attribute_t *attribute);
/**
* Sets the next_payload field of this substructure
*
* If this is the last transform, next payload field is set to 0,
* otherwise to 3
*
* @param is_last When TRUE, next payload field is set to 0, otherwise to 3
*/
void (*set_is_last_transform) (transform_substructure_t *this, bool is_last);
/**
* Get transform type (IKEv2) or the transform number (IKEv1).
*
* @return Transform type of current transform substructure.
*/
u_int8_t (*get_transform_type_or_number) (transform_substructure_t *this);
/**
* Get transform id of the current transform.
*
* @return Transform id of current transform substructure.
*/
u_int16_t (*get_transform_id) (transform_substructure_t *this);
/**
* Create an enumerator over transform attributes.
*
* @return enumerator over transform_attribute_t*
*/
enumerator_t* (*create_attribute_enumerator)(transform_substructure_t *this);
/**
* Destroys an transform_substructure_t object.
*/
void (*destroy) (transform_substructure_t *this);
};
/**
* Creates an empty transform_substructure_t object.
*
* @param type PLV2_TRANSFORM_SUBSTRUCTURE or PLV1_TRANSFORM_SUBSTRUCTURE
* @return created transform_substructure_t object
*/
transform_substructure_t *transform_substructure_create(payload_type_t type);
/**
* Creates an empty transform_substructure_t object.
*
* @param type PLV2_TRANSFORM_SUBSTRUCTURE or PLV1_TRANSFORM_SUBSTRUCTURE
* @param type_or_number Type (IKEv2) or number (IKEv1) of transform
* @param id transform id specifc for the transform type
* @return transform_substructure_t object
*/
transform_substructure_t *transform_substructure_create_type(payload_type_t type,
u_int8_t type_or_number, u_int16_t id);
#endif /** TRANSFORM_SUBSTRUCTURE_H_ @}*/
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