170 lines
3.9 KiB
C
170 lines
3.9 KiB
C
/**
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* @file ihe_sa_id.c
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*
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* @brief Class for identification of an IKE_SA
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*
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*/
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/*
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* Copyright (C) 2005 Jan Hutter, Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <stdlib.h>
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#include <freeswan.h>
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#include <pluto/constants.h>
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#include <pluto/defs.h>
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#include "types.h"
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#include "ike_sa_id.h"
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/**
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* Private data of an ike_sa_id object
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*/
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typedef struct private_ike_sa_id_s private_ike_sa_id_t;
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struct private_ike_sa_id_s {
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/**
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* Public part of a ike_sa_id object
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*/
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ike_sa_id_t public;
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/* Private values */
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/**
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* SPI of Initiator
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*/
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spi_t initiator_spi;
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/**
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* SPI of Responder
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*/
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spi_t responder_spi;
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/**
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* Role for specific IKE_SA
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*/
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ike_sa_role_t role;
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};
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/**
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* @brief implements function set_responder_spi of ike_sa_id_t
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*/
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static status_t set_responder_spi (private_ike_sa_id_t *this, spi_t responder_spi)
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{
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if (this == NULL)
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{
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return FAILED;
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}
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this->responder_spi = responder_spi;
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return SUCCESS;
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}
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/**
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* @brief implements function initiator_spi_is_set of ike_sa_id_t
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*/
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static bool initiator_spi_is_set (private_ike_sa_id_t *this)
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{
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return (!((this->initiator_spi.high == 0) && (this->initiator_spi.low == 0)));
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}
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/**
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* @brief implements function responder_spi_is_set of ike_sa_id_t
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*/
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static bool responder_spi_is_set (private_ike_sa_id_t *this)
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{
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return (!((this->responder_spi.high == 0) && (this->responder_spi.low == 0)));
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}
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/**
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* @brief implements function equals of ike_sa_id_t
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*/
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static status_t equals (private_ike_sa_id_t *this,private_ike_sa_id_t *other, bool *are_equal)
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{
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if ((this == NULL)||(other == NULL))
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{
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return FAILED;
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}
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if ( (this->role == other->role) &&
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(this->initiator_spi.high == other->initiator_spi.high) &&
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(this->initiator_spi.low == other->initiator_spi.low) &&
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(this->responder_spi.high == other->responder_spi.high) &&
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(this->responder_spi.low == other->responder_spi.low))
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{
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/* private_ike_sa_id's are equal */
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*are_equal = TRUE;
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}
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else
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{
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/* private_ike_sa_id's are not equal */
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*are_equal = FALSE;
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}
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return SUCCESS;
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}
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static status_t clone (private_ike_sa_id_t *this,ike_sa_id_t **clone_of_this)
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{
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if ((this == NULL) || (clone_of_this == NULL))
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{
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return FAILED;
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}
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*clone_of_this = ike_sa_id_create(this->initiator_spi, this->responder_spi, this->role);
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return (*clone_of_this == NULL) ? FAILED : SUCCESS;
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}
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/**
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* @brief implements function destroy of ike_sa_id_t
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*/
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static status_t destroy (private_ike_sa_id_t *this)
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{
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if (this == NULL)
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{
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return FAILED;
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}
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pfree(this);
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return SUCCESS;
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}
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/*
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* Described in Header-File
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*/
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ike_sa_id_t * ike_sa_id_create(spi_t initiator_spi, spi_t responder_spi, ike_sa_role_t role)
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{
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private_ike_sa_id_t *this = alloc_thing(private_ike_sa_id_t, "private_ike_sa_id_t");
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if (this == NULL)
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{
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return NULL;
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}
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/* Public functions */
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this->public.set_responder_spi = (status_t(*)(ike_sa_id_t*,spi_t))set_responder_spi;
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this->public.responder_spi_is_set = (bool(*)(ike_sa_id_t*))responder_spi_is_set;
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this->public.initiator_spi_is_set = (bool(*)(ike_sa_id_t*))initiator_spi_is_set;
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this->public.equals = (status_t(*)(ike_sa_id_t*,ike_sa_id_t*,bool*))equals;
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this->public.clone = (status_t(*)(ike_sa_id_t*,ike_sa_id_t**))clone;
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this->public.destroy = (status_t(*)(ike_sa_id_t*))destroy;
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/* private data */
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this->initiator_spi = initiator_spi;
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this->responder_spi = responder_spi;
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this->role = role;
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return (&this->public);
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}
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