98 lines
2.0 KiB
C
98 lines
2.0 KiB
C
/*
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* Copyright (C) 2010 Tobias Brunner
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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 "hydra.h"
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#include <utils/debug.h>
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typedef struct private_hydra_t private_hydra_t;
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/**
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* Private additions to hydra_t.
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*/
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struct private_hydra_t {
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/**
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* Public members of hydra_t.
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*/
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hydra_t public;
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/**
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* Integrity check failed?
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*/
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bool integrity_failed;
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/**
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* Number of times we have been initialized
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*/
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refcount_t ref;
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};
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/**
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* Single instance of hydra_t.
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*/
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hydra_t *hydra = NULL;
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/**
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* Described in header.
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*/
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void libhydra_deinit()
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{
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private_hydra_t *this = (private_hydra_t*)hydra;
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if (!this || !ref_put(&this->ref))
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{ /* have more users */
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return;
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}
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this->public.attributes->destroy(this->public.attributes);
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this->public.kernel_interface->destroy(this->public.kernel_interface);
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free(this);
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hydra = NULL;
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}
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/**
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* Described in header.
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*/
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bool libhydra_init()
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{
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private_hydra_t *this;
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if (hydra)
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{ /* already initialized, increase refcount */
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this = (private_hydra_t*)hydra;
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ref_get(&this->ref);
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return !this->integrity_failed;
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}
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INIT(this,
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.public = {
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.attributes = attribute_manager_create(),
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},
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.ref = 1,
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);
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hydra = &this->public;
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this->public.kernel_interface = kernel_interface_create();
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if (lib->integrity &&
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!lib->integrity->check(lib->integrity, "libhydra", libhydra_init))
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{
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DBG1(DBG_LIB, "integrity check of libhydra failed");
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this->integrity_failed = TRUE;
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}
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return !this->integrity_failed;
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}
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