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Annotation of embedaddon/strongswan/src/libstrongswan/plugins/padlock/padlock_plugin.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2013 Tobias Brunner
        !             3:  * Copyright (C) 2008 Martin Willi
        !             4:  * HSR Hochschule fuer Technik Rapperswil
        !             5:  *
        !             6:  * This program is free software; you can redistribute it and/or modify it
        !             7:  * under the terms of the GNU General Public License as published by the
        !             8:  * Free Software Foundation; either version 2 of the License, or (at your
        !             9:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
        !            10:  *
        !            11:  * This program is distributed in the hope that it will be useful, but
        !            12:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            13:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
        !            14:  * for more details.
        !            15:  */
        !            16: 
        !            17: #include "padlock_plugin.h"
        !            18: #include "padlock_aes_crypter.h"
        !            19: #include "padlock_sha1_hasher.h"
        !            20: #include "padlock_rng.h"
        !            21: 
        !            22: #include <stdio.h>
        !            23: 
        !            24: #include <library.h>
        !            25: #include <plugins/plugin_feature.h>
        !            26: #include <utils/cpu_feature.h>
        !            27: #include <utils/debug.h>
        !            28: 
        !            29: typedef struct private_padlock_plugin_t private_padlock_plugin_t;
        !            30: typedef enum padlock_feature_t padlock_feature_t;
        !            31: 
        !            32: /**
        !            33:  * private data of aes_plugin
        !            34:  */
        !            35: struct private_padlock_plugin_t {
        !            36: 
        !            37:        /**
        !            38:         * public functions
        !            39:         */
        !            40:        padlock_plugin_t public;
        !            41: 
        !            42:        /**
        !            43:         * features supported by Padlock
        !            44:         */
        !            45:        cpu_feature_t features;
        !            46: };
        !            47: 
        !            48: METHOD(plugin_t, get_name, char*,
        !            49:        private_padlock_plugin_t *this)
        !            50: {
        !            51:        return "padlock";
        !            52: }
        !            53: 
        !            54: METHOD(plugin_t, get_features, int,
        !            55:        private_padlock_plugin_t *this, plugin_feature_t *features[])
        !            56: {
        !            57:        static plugin_feature_t f_rng[] = {
        !            58:                PLUGIN_REGISTER(RNG, padlock_rng_create),
        !            59:                        PLUGIN_PROVIDE(RNG, RNG_WEAK),
        !            60:                        PLUGIN_PROVIDE(RNG, RNG_STRONG),
        !            61:                        PLUGIN_PROVIDE(RNG, RNG_TRUE),
        !            62:        };
        !            63:        static plugin_feature_t f_aes[] = {
        !            64:                PLUGIN_REGISTER(CRYPTER, padlock_aes_crypter_create),
        !            65:                        PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 16),
        !            66:        };
        !            67:        static plugin_feature_t f_sha1[] = {
        !            68:                PLUGIN_REGISTER(HASHER, padlock_sha1_hasher_create),
        !            69:                        PLUGIN_PROVIDE(HASHER, HASH_SHA1),
        !            70:        };
        !            71:        static plugin_feature_t f[countof(f_rng) + countof(f_aes) +
        !            72:                                                          countof(f_sha1)] = {};
        !            73:        static int count = 0;
        !            74: 
        !            75:        if (!count)
        !            76:        {       /* initialize only once */
        !            77:                if (this->features & CPU_FEATURE_PADLOCK_RNG_ENABLED)
        !            78:                {
        !            79:                        plugin_features_add(f, f_rng, countof(f_rng), &count);
        !            80:                }
        !            81:                if (this->features & CPU_FEATURE_PADLOCK_ACE2_ENABLED)
        !            82:                {
        !            83:                        plugin_features_add(f, f_aes, countof(f_aes), &count);
        !            84:                }
        !            85:                if (this->features & CPU_FEATURE_PADLOCK_PHE_ENABLED)
        !            86:                {
        !            87:                        plugin_features_add(f, f_sha1, countof(f_sha1), &count);
        !            88:                }
        !            89:        }
        !            90:        *features = f;
        !            91:        return count;
        !            92: }
        !            93: 
        !            94: METHOD(plugin_t, destroy, void,
        !            95:        private_padlock_plugin_t *this)
        !            96: {
        !            97:        free(this);
        !            98: }
        !            99: 
        !           100: /*
        !           101:  * see header file
        !           102:  */
        !           103: plugin_t *padlock_plugin_create()
        !           104: {
        !           105:        private_padlock_plugin_t *this;
        !           106: 
        !           107:        INIT(this,
        !           108:                .public = {
        !           109:                        .plugin = {
        !           110:                                .get_name = _get_name,
        !           111:                                .get_features = _get_features,
        !           112:                                .destroy = _destroy,
        !           113:                        },
        !           114:                },
        !           115:                .features = cpu_feature_get_all(),
        !           116:        );
        !           117: 
        !           118:        DBG1(DBG_LIB, "Padlock features supported:%s%s%s%s%s, enabled:%s%s%s%s%s",
        !           119:                 this->features & CPU_FEATURE_PADLOCK_RNG_AVAILABLE ? " RNG" : "",
        !           120:                 this->features & CPU_FEATURE_PADLOCK_ACE_AVAILABLE ? " ACE" : "",
        !           121:                 this->features & CPU_FEATURE_PADLOCK_ACE2_AVAILABLE ? " ACE2" : "",
        !           122:                 this->features & CPU_FEATURE_PADLOCK_PHE_AVAILABLE ? " PHE" : "",
        !           123:                 this->features & CPU_FEATURE_PADLOCK_PMM_AVAILABLE ? " PMM" : "",
        !           124:                 this->features & CPU_FEATURE_PADLOCK_RNG_ENABLED ? " RNG" : "",
        !           125:                 this->features & CPU_FEATURE_PADLOCK_ACE_ENABLED ? " ACE" : "",
        !           126:                 this->features & CPU_FEATURE_PADLOCK_ACE2_ENABLED ? " ACE2" : "",
        !           127:                 this->features & CPU_FEATURE_PADLOCK_PHE_ENABLED ? " PHE" : "",
        !           128:                 this->features & CPU_FEATURE_PADLOCK_PMM_ENABLED ? " PMM" : "");
        !           129: 
        !           130:        return &this->public.plugin;
        !           131: }