287 lines
8.0 KiB
C
287 lines
8.0 KiB
C
/*
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* Copyright (C) 2008 Tobias Brunner
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* Copyright (C) 2008 Martin Willi
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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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* $Id$
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*/
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#include <openssl/evp.h>
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#include <openssl/engine.h>
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#include <openssl/crypto.h>
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#include <pthread.h>
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#include "openssl_plugin.h"
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#include <library.h>
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#include <utils/mutex.h>
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#include "openssl_crypter.h"
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#include "openssl_hasher.h"
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#include "openssl_diffie_hellman.h"
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#include "openssl_ec_diffie_hellman.h"
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#include "openssl_rsa_private_key.h"
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#include "openssl_rsa_public_key.h"
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#include "openssl_ec_private_key.h"
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#include "openssl_ec_public_key.h"
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typedef struct private_openssl_plugin_t private_openssl_plugin_t;
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/**
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* private data of openssl_plugin
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*/
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struct private_openssl_plugin_t {
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/**
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* public functions
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*/
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openssl_plugin_t public;
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};
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/**
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* Array of static mutexs, with CRYPTO_num_locks() mutex
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*/
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static mutex_t **mutex = NULL;
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/**
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* Locking callback for static locks
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*/
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static void locking_function(int mode, int type, const char *file, int line)
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{
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if (mutex)
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{
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if (mode & CRYPTO_LOCK)
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{
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mutex[type]->lock(mutex[type]);
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}
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else
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{
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mutex[type]->unlock(mutex[type]);
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}
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}
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}
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/**
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* Implementation of dynlock
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*/
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struct CRYPTO_dynlock_value {
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mutex_t *mutex;
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};
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/**
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* Callback to create a dynamic lock
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*/
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static struct CRYPTO_dynlock_value *create_function(const char *file, int line)
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{
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struct CRYPTO_dynlock_value *lock;
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lock = malloc_thing(struct CRYPTO_dynlock_value);
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lock->mutex = mutex_create(MUTEX_DEFAULT);
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return lock;
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}
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/**
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* Callback to (un-)lock a dynamic lock
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*/
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static void lock_function(int mode, struct CRYPTO_dynlock_value *lock,
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const char *file, int line)
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{
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if (mode & CRYPTO_LOCK)
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{
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lock->mutex->lock(lock->mutex);
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}
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else
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{
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lock->mutex->unlock(lock->mutex);
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}
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}
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/**
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* Callback to destroy a dynamic lock
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*/
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static void destroy_function(struct CRYPTO_dynlock_value *lock,
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const char *file, int line)
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{
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lock->mutex->destroy(lock->mutex);
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free(lock);
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}
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/**
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* Thread-ID callback function
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*/
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static unsigned long id_function(void)
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{
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return pthread_self();
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}
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/**
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* initialize OpenSSL for multi-threaded use
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*/
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static void threading_init()
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{
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int i, num_locks;
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CRYPTO_set_id_callback(id_function);
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CRYPTO_set_locking_callback(locking_function);
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CRYPTO_set_dynlock_create_callback(create_function);
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CRYPTO_set_dynlock_lock_callback(lock_function);
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CRYPTO_set_dynlock_destroy_callback(destroy_function);
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num_locks = CRYPTO_num_locks();
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mutex = malloc(sizeof(mutex_t*) * num_locks);
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for (i = 0; i < num_locks; i++)
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{
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mutex[i] = mutex_create(MUTEX_DEFAULT);
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}
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}
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/**
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* cleanup OpenSSL threading locks
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*/
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static void threading_cleanup()
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{
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int i, num_locks;
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num_locks = CRYPTO_num_locks();
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for (i = 0; i < num_locks; i++)
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{
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mutex[i]->destroy(mutex[i]);
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}
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free(mutex);
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mutex = NULL;
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}
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/**
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* Implementation of openssl_plugin_t.destroy
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*/
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static void destroy(private_openssl_plugin_t *this)
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{
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lib->crypto->remove_crypter(lib->crypto,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->remove_hasher(lib->crypto,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->remove_dh(lib->crypto,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->remove_dh(lib->crypto,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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lib->creds->remove_builder(lib->creds,
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(builder_constructor_t)openssl_rsa_private_key_builder);
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lib->creds->remove_builder(lib->creds,
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(builder_constructor_t)openssl_rsa_public_key_builder);
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lib->creds->remove_builder(lib->creds,
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(builder_constructor_t)openssl_ec_private_key_builder);
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lib->creds->remove_builder(lib->creds,
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(builder_constructor_t)openssl_ec_public_key_builder);
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ENGINE_cleanup();
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EVP_cleanup();
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threading_cleanup();
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free(this);
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}
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/*
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* see header file
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*/
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plugin_t *plugin_create()
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{
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private_openssl_plugin_t *this = malloc_thing(private_openssl_plugin_t);
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this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
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threading_init();
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OpenSSL_add_all_algorithms();
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/* activate support for hardware accelerators */
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ENGINE_load_builtin_engines();
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ENGINE_register_all_complete();
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/* crypter */
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lib->crypto->add_crypter(lib->crypto, ENCR_AES_CBC,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_3DES,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_RC5,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_IDEA,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_CAST,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_BLOWFISH,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_DES,
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(crypter_constructor_t)openssl_crypter_create);
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lib->crypto->add_crypter(lib->crypto, ENCR_NULL,
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(crypter_constructor_t)openssl_crypter_create);
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/* hasher */
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lib->crypto->add_hasher(lib->crypto, HASH_SHA1,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->add_hasher(lib->crypto, HASH_MD2,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->add_hasher(lib->crypto, HASH_MD5,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->add_hasher(lib->crypto, HASH_SHA256,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->add_hasher(lib->crypto, HASH_SHA384,
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(hasher_constructor_t)openssl_hasher_create);
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lib->crypto->add_hasher(lib->crypto, HASH_SHA512,
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(hasher_constructor_t)openssl_hasher_create);
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/* ec diffie hellman */
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lib->crypto->add_dh(lib->crypto, ECP_192_BIT,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, ECP_224_BIT,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, ECP_256_BIT,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, ECP_384_BIT,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, ECP_521_BIT,
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(dh_constructor_t)openssl_ec_diffie_hellman_create);
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/* diffie hellman */
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lib->crypto->add_dh(lib->crypto, MODP_2048_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_1536_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_3072_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_4096_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_6144_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_8192_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_1024_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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lib->crypto->add_dh(lib->crypto, MODP_768_BIT,
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(dh_constructor_t)openssl_diffie_hellman_create);
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/* rsa */
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lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
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(builder_constructor_t)openssl_rsa_private_key_builder);
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lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_RSA,
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(builder_constructor_t)openssl_rsa_public_key_builder);
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/* ec */
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lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
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(builder_constructor_t)openssl_ec_private_key_builder);
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lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_ECDSA,
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(builder_constructor_t)openssl_ec_public_key_builder);
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return &this->public.plugin;
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}
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