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/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup sim_manager sim_manager
* @{ @ingroup eap
*/
#ifndef SIM_MANAGER_H_
#define SIM_MANAGER_H_
#include <utils/identification.h>
#include <utils/enumerator.h>
typedef struct sim_manager_t sim_manager_t;
typedef struct sim_card_t sim_card_t;
typedef struct sim_provider_t sim_provider_t;
/**
* Interface for a SIM card (used as EAP client).
*/
struct sim_card_t {
/**
* Get the identity of a SIM card.
*
* The returned identity owned by the sim_card and not destroyed outside.
* The SIM card may return ID_ANY if it does not support/use an IMSI.
*
* @return identity of type ID_EAP/ID_ANY
*/
identification_t* (*get_imsi)(sim_card_t *this);
/**
* Calculate SRES/KC from a RAND.
*
* @param rand RAND input buffer, fixed size 16 bytes
* @param sres SRES output buffer, fixed size 4 byte
* @param kc KC output buffer, fixed size 8 bytes
* @return TRUE if SRES/KC calculated, FALSE on error
*/
bool (*get_triplet)(sim_card_t *this,
char rand[16], char sres[4], char kc[8]);
};
/**
* Interface for a triplet provider (used as EAP server).
*/
struct sim_provider_t {
/**
* Get a single triplet to authenticate a EAP client.
*
* @param imsi client identity of type ID_EAP
* @param rand RAND output buffer, fixed size 16 bytes
* @param sres SRES output buffer, fixed size 4 byte
* @param kc KC output buffer, fixed size 8 bytes
* @return TRUE if triplet received, FALSE otherwise
*/
bool (*get_triplet)(sim_provider_t *this, identification_t *imsi,
char rand[16], char sres[4], char kc[8]);
};
/**
* The EAP-SIM manager handles multiple SIM cards and providers.
*/
struct sim_manager_t {
/**
* Register a SIM card (client) at the manager.
*
* @param card sim card to register
*/
void (*add_card)(sim_manager_t *this, sim_card_t *card);
/**
* Unregister a previously registered card from the manager.
*
* @param card sim card to unregister
*/
void (*remove_card)(sim_manager_t *this, sim_card_t *card);
/**
* Create an enumerator over all registered cards.
*
* @return enumerator over sim_card_t's
*/
enumerator_t* (*create_card_enumerator)(sim_manager_t *this);
/**
* Register a triplet provider (server) at the manager.
*
* @param card sim card to register
*/
void (*add_provider)(sim_manager_t *this, sim_provider_t *provider);
/**
* Unregister a previously registered provider from the manager.
*
* @param card sim card to unregister
*/
void (*remove_provider)(sim_manager_t *this, sim_provider_t *provider);
/**
* Create an enumerator over all registered provider.
*
* @return enumerator over sim_provider_t's
*/
enumerator_t* (*create_provider_enumerator)(sim_manager_t *this);
/**
* Destroy a manager instance.
*/
void (*destroy)(sim_manager_t *this);
};
/**
* Create an SIM manager to handle multiple SIM cards/providers.
*
* @return sim_t object
*/
sim_manager_t *sim_manager_create();
#endif /** SIM_MANAGER_H_ @}*/
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