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/**
* @file nonce_payload.h
*
* @brief Interface of nonce_payload_t.
*
*/
/*
* 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.
*/
#ifndef NONCE_PAYLOAD_H_
#define NONCE_PAYLOAD_H_
typedef struct nonce_payload_t nonce_payload_t;
#include <library.h>
#include <encoding/payloads/payload.h>
/**
* Nonce size in bytes for nonces sending to other peer.
*
* @warning Nonce size MUST be between 16 and 256 bytes.
*
* @ingroup payloads
*/
#define NONCE_SIZE 16
/**
* Length of a nonce payload without a nonce in bytes.
*
* @ingroup payloads
*/
#define NONCE_PAYLOAD_HEADER_LENGTH 4
/**
* Object representing an IKEv2 Nonce payload.
*
* The Nonce payload format is described in RFC section 3.3.
*
* @b Constructors:
* - nonce_payload_create()
*
* @ingroup payloads
*/
struct nonce_payload_t {
/**
* The payload_t interface.
*/
payload_t payload_interface;
/**
* @brief Set the nonce value.
*
* @param this calling nonce_payload_t object
* @param nonce chunk containing the nonce, will be cloned
*/
void (*set_nonce) (nonce_payload_t *this, chunk_t nonce);
/**
* @brief Get the nonce value.
*
* @param this calling nonce_payload_t object
* @return a chunk containing the cloned nonce
*/
chunk_t (*get_nonce) (nonce_payload_t *this);
/**
* @brief Destroys an nonce_payload_t object.
*
* @param this nonce_payload_t object to destroy
*/
void (*destroy) (nonce_payload_t *this);
};
/**
* @brief Creates an empty nonce_payload_t object
*
* @return nonce_payload_t object
*
* @ingroup payloads
*/
nonce_payload_t *nonce_payload_create(void);
#endif /*NONCE_PAYLOAD_H_*/
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