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/**
* @file generator.h
*
* @brief Generic generator class used to generate IKEv2-Header and Payload
*
*/
/*
* 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 GENERATOR_H_
#define GENERATOR_H_
#include "types.h"
#include "encodings.h"
/**
* Data Buffer for generating has start size of 3000 Bytes
*/
#define GENERATOR_DATA_BUFFER_SIZE 3000
/**
* Number of Bytes to increase the buffer if it is to small
*/
#define GENERATOR_DATA_BUFFER_INCREASE_VALUE 1000
/**
* @brief A generator_t-object which generates payloads of specific type
*/
typedef struct generator_s generator_t;
struct generator_s {
/**
* @brief Generates a specific payload from given data struct
*
* Remember: Header and substructures are also seen as payloads
*
* @param generator generator object
* @param payload_type payload type to generate using the given data struct
* @param[in] data_struct Data struct where the needed data for generating are stored
* @param[out] output pointer to a chunk_t where the data are generated to
* @return SUCCESSFUL if succeeded,
* NOT_SUPPORTED if payload_type is not supported
* OUT_OF_RES if out of ressources
*/
status_t (*generate_payload) (generator_t *this,payload_type_t payload_type,void * data_struct, chunk_t *data);
/**
* @brief Destroys a generator object
*
* @param generator generator object
* @return SUCCESSFUL if succeeded, FAILED otherwise
*/
status_t (*destroy) (generator_t *this);
};
/**
* Constructor to create a generator
*
* @param payload_infos pointer to the payload_info_t-array containing
* all the payload informations needed to automatic generate a specific payload
*/
generator_t * generator_create(payload_info_t ** payload_infos);
#endif /*GENERATOR_H_*/
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