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/**
* @file child_sa.h
*
* @brief Interface of child_sa_t.
*
*/
/*
* 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 _CHILD_SA_H_
#define _CHILD_SA_H_
#include <types.h>
#include <transforms/prf_plus.h>
#include <encoding/payloads/proposal_substructure.h>
typedef struct child_sa_t child_sa_t;
/**
* @brief Represents a CHILD_SA between to hosts.
*
*
* @b Constructors:
* - child_sa_create
*
* @ingroup sa
*/
struct child_sa_t {
/**
* @brief Returns the SPI value of this CHILD_SA.
*
* AH and ESP are using 4 byte SPI values.
*
* @param this calling object
* @return 4 Byte SPI value
*/
u_int32_t (*get_spi) (child_sa_t *this);
/**
* @brief Destroys a child_sa.
*
* @param this calling object
*/
void (*destroy) (child_sa_t *this);
};
/**
* @brief Constructor to create a new CHILD_SA.
*
* @param protocol_id protocol id (AH or ESP) of CHILD_SA
* @param prf_plus prf_plus_t object use to derive shared secrets
* @return child_sa_t object
* @ingroup sa
*/
child_sa_t * child_sa_create(proposal_t *proposal, prf_plus_t *prf_plus);
#endif /*_CHILD_SA_H_*/
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