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