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/*
* Copyright (C) 2012 Tobias Brunner
* 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.
*/
/**
* @defgroup ike_sa_id ike_sa_id
* @{ @ingroup sa
*/
#ifndef IKE_SA_ID_H_
#define IKE_SA_ID_H_
typedef struct ike_sa_id_t ike_sa_id_t;
#include <library.h>
/**
* An object of type ike_sa_id_t is used to identify an IKE_SA.
*
* An IKE_SA is identified by its initiator and responder SPIs.
* Additionally, it contains the major IKE version of the IKE_SA and, for IKEv2,
* the role of the daemon (original initiator or responder).
*/
struct ike_sa_id_t {
/**
* Get the major IKE version of this IKE_SA.
*
* @return IKE version
*/
u_int8_t (*get_ike_version) (ike_sa_id_t *this);
/**
* Set the SPI of the responder.
*
* This function is called when a request or reply of a IKE_SA_INIT is received.
*
* @param responder_spi SPI of responder to set
*/
void (*set_responder_spi) (ike_sa_id_t *this, u_int64_t responder_spi);
/**
* Set the SPI of the initiator.
*
* @param initiator_spi SPI to set
*/
void (*set_initiator_spi) (ike_sa_id_t *this, u_int64_t initiator_spi);
/**
* Get the initiator SPI.
*
* @return SPI of the initiator
*/
u_int64_t (*get_initiator_spi) (ike_sa_id_t *this);
/**
* Get the responder SPI.
*
* @return SPI of the responder
*/
u_int64_t (*get_responder_spi) (ike_sa_id_t *this);
/**
* Check if two ike_sa_id_t objects are equal.
*
* Two ike_sa_id_t objects are equal if version and both SPI values match.
* The role is not compared.
*
* @param other ike_sa_id_t object to check if equal
* @return TRUE if given ike_sa_id_t are equal,
* FALSE otherwise
*/
bool (*equals) (ike_sa_id_t *this, ike_sa_id_t *other);
/**
* Replace all values of a given ike_sa_id_t object with values
* from another ike_sa_id_t object.
*
* After calling this function, both objects are equal.
*
* @param other ike_sa_id_t object from which values will be taken
*/
void (*replace_values) (ike_sa_id_t *this, ike_sa_id_t *other);
/**
* Get the initiator flag.
*
* @return TRUE if we are the original initiator
*/
bool (*is_initiator) (ike_sa_id_t *this);
/**
* Switch the original initiator flag.
*
* @return new value if initiator flag.
*/
bool (*switch_initiator) (ike_sa_id_t *this);
/**
* Clones a given ike_sa_id_t object.
*
* @return cloned ike_sa_id_t object
*/
ike_sa_id_t *(*clone) (ike_sa_id_t *this);
/**
* Destroys an ike_sa_id_t object.
*/
void (*destroy) (ike_sa_id_t *this);
};
/**
* Creates an ike_sa_id_t object.
*
* @param ike_version major IKE version
* @param initiator_spi initiators SPI
* @param responder_spi responders SPI
* @param is_initiaor TRUE if we are the original initiator
* @return ike_sa_id_t object
*/
ike_sa_id_t * ike_sa_id_create(u_int8_t ike_version, u_int64_t initiator_spi,
u_int64_t responder_spi, bool is_initiaor);
#endif /** IKE_SA_ID_H_ @}*/
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