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Annotation of embedaddon/strongswan/src/libstrongswan/plugins/rdrand/rdrand_plugin.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2012 Martin Willi
        !             3:  * Copyright (C) 2012 revosec AG
        !             4:  *
        !             5:  * This program is free software; you can redistribute it and/or modify it
        !             6:  * under the terms of the GNU General Public License as published by the
        !             7:  * Free Software Foundation; either version 2 of the License, or (at your
        !             8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
        !             9:  *
        !            10:  * This program is distributed in the hope that it will be useful, but
        !            11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
        !            13:  * for more details.
        !            14:  */
        !            15: 
        !            16: #include "rdrand_plugin.h"
        !            17: #include "rdrand_rng.h"
        !            18: 
        !            19: #include <stdio.h>
        !            20: 
        !            21: #include <library.h>
        !            22: #include <utils/debug.h>
        !            23: #include <utils/cpu_feature.h>
        !            24: 
        !            25: typedef struct private_rdrand_plugin_t private_rdrand_plugin_t;
        !            26: typedef enum cpuid_feature_t cpuid_feature_t;
        !            27: 
        !            28: /**
        !            29:  * private data of rdrand_plugin
        !            30:  */
        !            31: struct private_rdrand_plugin_t {
        !            32: 
        !            33:        /**
        !            34:         * public functions
        !            35:         */
        !            36:        rdrand_plugin_t public;
        !            37: };
        !            38: 
        !            39: METHOD(plugin_t, get_name, char*,
        !            40:        private_rdrand_plugin_t *this)
        !            41: {
        !            42:        return "rdrand";
        !            43: }
        !            44: 
        !            45: METHOD(plugin_t, get_features, int,
        !            46:        private_rdrand_plugin_t *this, plugin_feature_t *features[])
        !            47: {
        !            48:        static plugin_feature_t f[] = {
        !            49:                PLUGIN_REGISTER(RNG, rdrand_rng_create),
        !            50:                        PLUGIN_PROVIDE(RNG, RNG_WEAK),
        !            51:                        PLUGIN_PROVIDE(RNG, RNG_STRONG),
        !            52:                        PLUGIN_PROVIDE(RNG, RNG_TRUE),
        !            53:                                PLUGIN_DEPENDS(CRYPTER, ENCR_AES_CBC, 16),
        !            54:        };
        !            55:        *features = f;
        !            56:        if (cpu_feature_available(CPU_FEATURE_RDRAND))
        !            57:        {
        !            58:                DBG2(DBG_LIB, "detected RDRAND support, enabled");
        !            59:                return countof(f);
        !            60:        }
        !            61:        DBG2(DBG_LIB, "no RDRAND support detected, disabled");
        !            62:        return 0;
        !            63: }
        !            64: 
        !            65: METHOD(plugin_t, destroy, void,
        !            66:        private_rdrand_plugin_t *this)
        !            67: {
        !            68:        free(this);
        !            69: }
        !            70: 
        !            71: /*
        !            72:  * see header file
        !            73:  */
        !            74: plugin_t *rdrand_plugin_create()
        !            75: {
        !            76:        private_rdrand_plugin_t *this;
        !            77: 
        !            78:        INIT(this,
        !            79:                .public = {
        !            80:                        .plugin = {
        !            81:                                .get_name = _get_name,
        !            82:                                .get_features = _get_features,
        !            83:                                .reload = (void*)return_false,
        !            84:                                .destroy = _destroy,
        !            85:                        },
        !            86:                },
        !            87:        );
        !            88: 
        !            89:        return &this->public.plugin;
        !            90: }