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/*
* Copyright (C) 2013 Tobias Brunner
* 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.
*/
#include "padlock_plugin.h"
#include "padlock_aes_crypter.h"
#include "padlock_sha1_hasher.h"
#include "padlock_rng.h"
#include <stdio.h>
#include <library.h>
#include <plugins/plugin_feature.h>
#include <utils/cpu_feature.h>
#include <utils/debug.h>
typedef struct private_padlock_plugin_t private_padlock_plugin_t;
typedef enum padlock_feature_t padlock_feature_t;
/**
* private data of aes_plugin
*/
struct private_padlock_plugin_t {
/**
* public functions
*/
padlock_plugin_t public;
/**
* features supported by Padlock
*/
cpu_feature_t features;
};
METHOD(plugin_t, get_name, char*,
private_padlock_plugin_t *this)
{
return "padlock";
}
METHOD(plugin_t, get_features, int,
private_padlock_plugin_t *this, plugin_feature_t *features[])
{
static plugin_feature_t f_rng[] = {
PLUGIN_REGISTER(RNG, padlock_rng_create),
PLUGIN_PROVIDE(RNG, RNG_WEAK),
PLUGIN_PROVIDE(RNG, RNG_STRONG),
PLUGIN_PROVIDE(RNG, RNG_TRUE),
};
static plugin_feature_t f_aes[] = {
PLUGIN_REGISTER(CRYPTER, padlock_aes_crypter_create),
PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 16),
};
static plugin_feature_t f_sha1[] = {
PLUGIN_REGISTER(HASHER, padlock_sha1_hasher_create),
PLUGIN_PROVIDE(HASHER, HASH_SHA1),
};
static plugin_feature_t f[countof(f_rng) + countof(f_aes) +
countof(f_sha1)] = {};
static int count = 0;
if (!count)
{ /* initialize only once */
if (this->features & CPU_FEATURE_PADLOCK_RNG_ENABLED)
{
plugin_features_add(f, f_rng, countof(f_rng), &count);
}
if (this->features & CPU_FEATURE_PADLOCK_ACE2_ENABLED)
{
plugin_features_add(f, f_aes, countof(f_aes), &count);
}
if (this->features & CPU_FEATURE_PADLOCK_PHE_ENABLED)
{
plugin_features_add(f, f_sha1, countof(f_sha1), &count);
}
}
*features = f;
return count;
}
METHOD(plugin_t, destroy, void,
private_padlock_plugin_t *this)
{
free(this);
}
/*
* see header file
*/
plugin_t *padlock_plugin_create()
{
private_padlock_plugin_t *this;
INIT(this,
.public = {
.plugin = {
.get_name = _get_name,
.get_features = _get_features,
.destroy = _destroy,
},
},
.features = cpu_feature_get_all(),
);
DBG1(DBG_LIB, "Padlock features supported:%s%s%s%s%s, enabled:%s%s%s%s%s",
this->features & CPU_FEATURE_PADLOCK_RNG_AVAILABLE ? " RNG" : "",
this->features & CPU_FEATURE_PADLOCK_ACE_AVAILABLE ? " ACE" : "",
this->features & CPU_FEATURE_PADLOCK_ACE2_AVAILABLE ? " ACE2" : "",
this->features & CPU_FEATURE_PADLOCK_PHE_AVAILABLE ? " PHE" : "",
this->features & CPU_FEATURE_PADLOCK_PMM_AVAILABLE ? " PMM" : "",
this->features & CPU_FEATURE_PADLOCK_RNG_ENABLED ? " RNG" : "",
this->features & CPU_FEATURE_PADLOCK_ACE_ENABLED ? " ACE" : "",
this->features & CPU_FEATURE_PADLOCK_ACE2_ENABLED ? " ACE2" : "",
this->features & CPU_FEATURE_PADLOCK_PHE_ENABLED ? " PHE" : "",
this->features & CPU_FEATURE_PADLOCK_PMM_ENABLED ? " PMM" : "");
return &this->public.plugin;
}
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