444 lines
11 KiB
C
444 lines
11 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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#include <openssl/evp.h>
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#include <openssl/conf.h>
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#include <openssl/rand.h>
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#include <openssl/crypto.h>
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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#include "openssl_plugin.h"
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#include <library.h>
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#include <debug.h>
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#include <threading/thread.h>
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#include <threading/mutex.h>
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#include "openssl_util.h"
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#include "openssl_crypter.h"
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#include "openssl_hasher.h"
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#include "openssl_sha1_prf.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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#include "openssl_x509.h"
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#include "openssl_crl.h"
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#include "openssl_rng.h"
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#include "openssl_hmac_prf.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_TYPE_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 (unsigned long)thread_current_id();
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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_TYPE_DEFAULT);
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}
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}
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/**
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* Seed the OpenSSL RNG, if required
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*/
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static bool seed_rng()
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{
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rng_t *rng = NULL;
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char buf[32];
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while (RAND_status() != 1)
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{
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if (!rng)
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{
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rng = lib->crypto->create_rng(lib->crypto, RNG_STRONG);
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if (!rng)
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{
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return FALSE;
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}
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}
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rng->get_bytes(rng, sizeof(buf), buf);
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RAND_seed(buf, sizeof(buf));
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}
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DESTROY_IF(rng);
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return TRUE;
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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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METHOD(plugin_t, get_name, char*,
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private_openssl_plugin_t *this)
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{
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return "openssl";
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}
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METHOD(plugin_t, get_features, int,
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private_openssl_plugin_t *this, plugin_feature_t *features[])
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{
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static plugin_feature_t f[] = {
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/* crypters */
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PLUGIN_REGISTER(CRYPTER, openssl_crypter_create),
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#ifndef OPENSSL_NO_AES
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PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 16),
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PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 24),
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PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 32),
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#endif
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#ifndef OPENSSL_NO_CAMELLIA
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PLUGIN_PROVIDE(CRYPTER, ENCR_CAMELLIA_CBC, 16),
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PLUGIN_PROVIDE(CRYPTER, ENCR_CAMELLIA_CBC, 24),
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PLUGIN_PROVIDE(CRYPTER, ENCR_CAMELLIA_CBC, 32),
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#endif
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#ifndef OPENSSL_NO_RC5
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PLUGIN_PROVIDE(CRYPTER, ENCR_RC5, 0),
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#endif
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#ifndef OPENSSL_NO_CAST
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PLUGIN_PROVIDE(CRYPTER, ENCR_CAST, 0),
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#endif
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#ifndef OPENSSL_NO_BLOWFISH
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PLUGIN_PROVIDE(CRYPTER, ENCR_BLOWFISH, 0),
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#endif
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#ifndef OPENSSL_NO_IDEA
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PLUGIN_PROVIDE(CRYPTER, ENCR_IDEA, 16),
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#endif
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#ifndef OPENSSL_NO_DES
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PLUGIN_PROVIDE(CRYPTER, ENCR_3DES, 24),
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PLUGIN_PROVIDE(CRYPTER, ENCR_DES, 8),
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PLUGIN_PROVIDE(CRYPTER, ENCR_DES_ECB, 8),
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#endif
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PLUGIN_PROVIDE(CRYPTER, ENCR_NULL, 0),
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/* hashers */
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PLUGIN_REGISTER(HASHER, openssl_hasher_create),
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#ifndef OPENSSL_NO_SHA1
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PLUGIN_PROVIDE(HASHER, HASH_SHA1),
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#endif
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#ifndef OPENSSL_NO_MD2
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PLUGIN_PROVIDE(HASHER, HASH_MD2),
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#endif
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#ifndef OPENSSL_NO_MD4
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PLUGIN_PROVIDE(HASHER, HASH_MD4),
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#endif
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#ifndef OPENSSL_NO_MD5
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PLUGIN_PROVIDE(HASHER, HASH_MD5),
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#endif
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#ifndef OPENSSL_NO_SHA256
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PLUGIN_PROVIDE(HASHER, HASH_SHA224),
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PLUGIN_PROVIDE(HASHER, HASH_SHA256),
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#endif
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#ifndef OPENSSL_NO_SHA512
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PLUGIN_PROVIDE(HASHER, HASH_SHA384),
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PLUGIN_PROVIDE(HASHER, HASH_SHA512),
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#endif
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#ifndef OPENSSL_NO_SHA1
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/* keyed sha1 hasher (aka prf) */
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PLUGIN_REGISTER(PRF, openssl_sha1_prf_create),
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PLUGIN_PROVIDE(PRF, PRF_KEYED_SHA1),
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#endif
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#ifndef OPENSSL_NO_HMAC
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PLUGIN_REGISTER(PRF, openssl_hmac_prf_create),
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#ifndef OPENSSL_NO_MD5
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PLUGIN_PROVIDE(PRF, PRF_HMAC_MD5),
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#endif
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#ifndef OPENSSL_NO_SHA1
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PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA1),
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#endif
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#ifndef OPENSSL_NO_SHA256
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PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_256),
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#endif
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#ifndef OPENSSL_NO_SHA512
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PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_384),
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PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_512),
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#endif
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#endif /* OPENSSL_NO_HMAC */
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#ifndef OPENSSL_NO_DH
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/* MODP DH groups */
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PLUGIN_REGISTER(DH, openssl_diffie_hellman_create),
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PLUGIN_PROVIDE(DH, MODP_2048_BIT),
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PLUGIN_PROVIDE(DH, MODP_2048_224),
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PLUGIN_PROVIDE(DH, MODP_2048_256),
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PLUGIN_PROVIDE(DH, MODP_1536_BIT),
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PLUGIN_PROVIDE(DH, MODP_3072_BIT),
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PLUGIN_PROVIDE(DH, MODP_4096_BIT),
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PLUGIN_PROVIDE(DH, MODP_6144_BIT),
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PLUGIN_PROVIDE(DH, MODP_8192_BIT),
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PLUGIN_PROVIDE(DH, MODP_1024_BIT),
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PLUGIN_PROVIDE(DH, MODP_1024_160),
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PLUGIN_PROVIDE(DH, MODP_768_BIT),
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PLUGIN_PROVIDE(DH, MODP_CUSTOM),
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#endif
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#ifndef OPENSSL_NO_RSA
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/* RSA private/public key loading */
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PLUGIN_REGISTER(PRIVKEY, openssl_rsa_private_key_load, TRUE),
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PLUGIN_PROVIDE(PRIVKEY, KEY_RSA),
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PLUGIN_REGISTER(PRIVKEY, openssl_rsa_private_key_connect, FALSE),
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PLUGIN_PROVIDE(PRIVKEY, KEY_ANY),
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PLUGIN_REGISTER(PRIVKEY_GEN, openssl_rsa_private_key_gen, FALSE),
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PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_RSA),
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PLUGIN_REGISTER(PUBKEY, openssl_rsa_public_key_load, FALSE),
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PLUGIN_PROVIDE(PUBKEY, KEY_RSA),
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PLUGIN_REGISTER(PUBKEY, openssl_rsa_public_key_load, TRUE),
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PLUGIN_PROVIDE(PUBKEY, KEY_ANY),
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/* signature/encryption schemes */
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_NULL),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_NULL),
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#ifndef OPENSSL_NO_SHA1
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA1),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA1),
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#endif
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#ifndef OPENSSL_NO_SHA256
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA224),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA256),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA224),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA256),
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#endif
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#ifndef OPENSSL_NO_SHA512
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA384),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA512),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA384),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA512),
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#endif
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#ifndef OPENSSL_NO_MD5
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_MD5),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_MD5),
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#endif
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PLUGIN_PROVIDE(PRIVKEY_DECRYPT, ENCRYPT_RSA_PKCS1),
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PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_PKCS1),
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#endif /* OPENSSL_NO_RSA */
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/* certificate/CRL loading */
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PLUGIN_REGISTER(CERT_DECODE, openssl_x509_load, TRUE),
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PLUGIN_PROVIDE(CERT_DECODE, CERT_X509),
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PLUGIN_SDEPEND(PUBKEY, KEY_RSA),
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PLUGIN_SDEPEND(PUBKEY, KEY_ECDSA),
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PLUGIN_SDEPEND(PUBKEY, KEY_DSA),
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PLUGIN_REGISTER(CERT_DECODE, openssl_crl_load, TRUE),
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PLUGIN_PROVIDE(CERT_DECODE, CERT_X509_CRL),
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#ifndef OPENSSL_NO_ECDH
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/* EC DH groups */
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PLUGIN_REGISTER(DH, openssl_ec_diffie_hellman_create),
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PLUGIN_PROVIDE(DH, ECP_256_BIT),
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PLUGIN_PROVIDE(DH, ECP_384_BIT),
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PLUGIN_PROVIDE(DH, ECP_521_BIT),
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PLUGIN_PROVIDE(DH, ECP_224_BIT),
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PLUGIN_PROVIDE(DH, ECP_192_BIT),
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#endif
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#ifndef OPENSSL_NO_ECDSA
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/* EC private/public key loading */
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PLUGIN_REGISTER(PRIVKEY, openssl_ec_private_key_load, TRUE),
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PLUGIN_PROVIDE(PRIVKEY, KEY_ECDSA),
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PLUGIN_REGISTER(PRIVKEY_GEN, openssl_ec_private_key_gen, FALSE),
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PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_ECDSA),
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PLUGIN_REGISTER(PUBKEY, openssl_ec_public_key_load, TRUE),
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PLUGIN_PROVIDE(PUBKEY, KEY_ECDSA),
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/* signature encryption schemes */
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_NULL),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_NULL),
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#ifndef OPENSSL_NO_SHA1
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA1_DER),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA1_DER),
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#endif
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#ifndef OPENSSL_NO_SHA256
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA256_DER),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA256_DER),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_256),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_256),
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#endif
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#ifndef OPENSSL_NO_SHA512
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA384_DER),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA512_DER),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA384_DER),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA512_DER),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_384),
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PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_521),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_384),
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PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_521),
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#endif
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#endif /* OPENSSL_NO_ECDSA */
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PLUGIN_REGISTER(RNG, openssl_rng_create),
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PLUGIN_PROVIDE(RNG, RNG_STRONG),
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PLUGIN_PROVIDE(RNG, RNG_WEAK),
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};
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*features = f;
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return countof(f);
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}
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METHOD(plugin_t, destroy, void,
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private_openssl_plugin_t *this)
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{
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#ifndef OPENSSL_NO_ENGINE
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ENGINE_cleanup();
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#endif /* OPENSSL_NO_ENGINE */
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EVP_cleanup();
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CONF_modules_free();
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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 *openssl_plugin_create()
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{
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private_openssl_plugin_t *this;
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INIT(this,
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.public = {
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.plugin = {
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.get_name = _get_name,
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.get_features = _get_features,
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.destroy = _destroy,
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},
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},
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);
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threading_init();
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OPENSSL_config(NULL);
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OpenSSL_add_all_algorithms();
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#ifndef OPENSSL_NO_ENGINE
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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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#endif /* OPENSSL_NO_ENGINE */
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if (!seed_rng())
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{
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DBG1(DBG_CFG, "no RNG found to seed OpenSSL");
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destroy(this);
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return NULL;
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}
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return &this->public.plugin;
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}
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