91 lines
2.0 KiB
C
91 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2012 Martin Willi
|
|
* Copyright (C) 2012 revosec AG
|
|
*
|
|
* 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 "rdrand_plugin.h"
|
|
#include "rdrand_rng.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <library.h>
|
|
#include <utils/debug.h>
|
|
#include <utils/cpu_feature.h>
|
|
|
|
typedef struct private_rdrand_plugin_t private_rdrand_plugin_t;
|
|
typedef enum cpuid_feature_t cpuid_feature_t;
|
|
|
|
/**
|
|
* private data of rdrand_plugin
|
|
*/
|
|
struct private_rdrand_plugin_t {
|
|
|
|
/**
|
|
* public functions
|
|
*/
|
|
rdrand_plugin_t public;
|
|
};
|
|
|
|
METHOD(plugin_t, get_name, char*,
|
|
private_rdrand_plugin_t *this)
|
|
{
|
|
return "rdrand";
|
|
}
|
|
|
|
METHOD(plugin_t, get_features, int,
|
|
private_rdrand_plugin_t *this, plugin_feature_t *features[])
|
|
{
|
|
static plugin_feature_t f[] = {
|
|
PLUGIN_REGISTER(RNG, rdrand_rng_create),
|
|
PLUGIN_PROVIDE(RNG, RNG_WEAK),
|
|
PLUGIN_PROVIDE(RNG, RNG_STRONG),
|
|
PLUGIN_PROVIDE(RNG, RNG_TRUE),
|
|
PLUGIN_DEPENDS(CRYPTER, ENCR_AES_CBC, 16),
|
|
};
|
|
*features = f;
|
|
if (cpu_feature_available(CPU_FEATURE_RDRAND))
|
|
{
|
|
DBG2(DBG_LIB, "detected RDRAND support, enabled");
|
|
return countof(f);
|
|
}
|
|
DBG2(DBG_LIB, "no RDRAND support detected, disabled");
|
|
return 0;
|
|
}
|
|
|
|
METHOD(plugin_t, destroy, void,
|
|
private_rdrand_plugin_t *this)
|
|
{
|
|
free(this);
|
|
}
|
|
|
|
/*
|
|
* see header file
|
|
*/
|
|
plugin_t *rdrand_plugin_create()
|
|
{
|
|
private_rdrand_plugin_t *this;
|
|
|
|
INIT(this,
|
|
.public = {
|
|
.plugin = {
|
|
.get_name = _get_name,
|
|
.get_features = _get_features,
|
|
.reload = (void*)return_false,
|
|
.destroy = _destroy,
|
|
},
|
|
},
|
|
);
|
|
|
|
return &this->public.plugin;
|
|
}
|