strongswan/src/libcharon/plugins/eap_simaka_pseudonym/eap_simaka_pseudonym_card.c

145 lines
3.3 KiB
C

/*
* Copyright (C) 2016 Tobias Brunner
* Copyright (C) 2009 Martin Willi
* HSR 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.
*/
#include "eap_simaka_pseudonym_card.h"
#include <daemon.h>
#include <collections/hashtable.h>
typedef struct private_eap_simaka_pseudonym_card_t private_eap_simaka_pseudonym_card_t;
/**
* Private data of an eap_simaka_pseudonym_card_t object.
*/
struct private_eap_simaka_pseudonym_card_t {
/**
* Public eap_simaka_pseudonym_card_t interface.
*/
eap_simaka_pseudonym_card_t public;
/**
* Permanent -> pseudonym mappings (entry_t*)
*/
hashtable_t *pseudonym;
};
/**
* Mapping between real and pseudonym identity
*/
typedef struct {
/** Real identity */
identification_t *id;
/** Pseudonym */
identification_t *pseudonym;
} entry_t;
static void destroy_entry(entry_t *this)
{
this->id->destroy(this->id);
this->pseudonym->destroy(this->pseudonym);
free(this);
}
/**
* hashtable hash function
*/
static u_int hash(identification_t *key)
{
return chunk_hash(key->get_encoding(key));
}
/**
* hashtable equals function
*/
static bool equals(identification_t *key1, identification_t *key2)
{
return key1->equals(key1, key2);
}
METHOD(simaka_card_t, get_pseudonym, identification_t*,
private_eap_simaka_pseudonym_card_t *this, identification_t *id)
{
entry_t *entry;
entry = this->pseudonym->get(this->pseudonym, id);
if (entry)
{
return entry->pseudonym->clone(entry->pseudonym);
}
return NULL;
}
METHOD(simaka_card_t, set_pseudonym, void,
private_eap_simaka_pseudonym_card_t *this, identification_t *id,
identification_t *pseudonym)
{
entry_t *entry;
INIT(entry,
.id = id->clone(id),
.pseudonym = pseudonym->clone(pseudonym),
);
entry = this->pseudonym->put(this->pseudonym, entry->id, entry);
if (entry)
{
destroy_entry(entry);
}
}
METHOD(simaka_card_t, get_quintuplet, status_t,
private_eap_simaka_pseudonym_card_t *this, identification_t *id,
char rand[AKA_RAND_LEN], char autn[AKA_AUTN_LEN], char ck[AKA_CK_LEN],
char ik[AKA_IK_LEN], char res[AKA_RES_MAX], int *res_len)
{
return NOT_SUPPORTED;
}
METHOD(eap_simaka_pseudonym_card_t, destroy, void,
private_eap_simaka_pseudonym_card_t *this)
{
this->pseudonym->destroy_function(this->pseudonym, (void*)destroy_entry);
free(this);
}
/**
* See header
*/
eap_simaka_pseudonym_card_t *eap_simaka_pseudonym_card_create()
{
private_eap_simaka_pseudonym_card_t *this;
INIT(this,
.public = {
.card = {
.get_triplet = (void*)return_false,
.get_quintuplet = _get_quintuplet,
.resync = (void*)return_false,
.get_pseudonym = _get_pseudonym,
.set_pseudonym = _set_pseudonym,
.get_reauth = (void*)return_null,
.set_reauth = (void*)nop,
},
.destroy = _destroy,
},
.pseudonym = hashtable_create((void*)hash, (void*)equals, 0),
);
return &this->public;
}