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/*
* Copyright (C) 2012 Tobias Brunner
* 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 fragment_payload fragment_payload
* @{ @ingroup payloads
*/
#ifndef FRAGMENT_PAYLOAD_H_
#define FRAGMENT_PAYLOAD_H_
typedef struct fragment_payload_t fragment_payload_t;
#include <library.h>
#include <encoding/payloads/payload.h>
/**
* Object representing an IKEv1 fragment payload.
*/
struct fragment_payload_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* Get the fragment ID. Identifies the fragments for a particular IKE
* message.
*
* @return fragment ID
*/
u_int16_t (*get_id)(fragment_payload_t *this);
/**
* Get the fragment number. Defines the order of the fragments.
*
* @return fragment number
*/
u_int8_t (*get_number)(fragment_payload_t *this);
/**
* Check if this is the last fragment.
*
* @return TRUE if this is the last fragment
*/
bool (*is_last)(fragment_payload_t *this);
/**
* Get the fragment data.
*
* @return chunkt to internal fragment data
*/
chunk_t (*get_data)(fragment_payload_t *this);
/**
* Destroys an fragment_payload_t object.
*/
void (*destroy)(fragment_payload_t *this);
};
/**
* Creates an empty fragment_payload_t object.
*
* @return fragment_payload_t object
*/
fragment_payload_t *fragment_payload_create();
/**
* Creates a fragment payload from the given data. All fragments currently
* have the same fragment ID (1), which seems what other implementations are
* doing.
*
* @param num fragment number (first one should be 1)
* @param last TRUE to indicate that this is the last fragment
* @param data fragment data (gets cloned)
* @return fragment_payload_t object
*/
fragment_payload_t *fragment_payload_create_from_data(u_int8_t num, bool last,
chunk_t data);
#endif /** FRAGMENT_PAYLOAD_H_ @}*/
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