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/*
* Copyright (C) 2008 Tobias Brunner
* Copyright (C) 2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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 <openssl/evp.h>
#include <openssl/conf.h>
#include <openssl/crypto.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#include "openssl_plugin.h"
#include <library.h>
#include <threading/thread.h>
#include <threading/mutex.h>
#include "openssl_util.h"
#include "openssl_crypter.h"
#include "openssl_hasher.h"
#include "openssl_sha1_prf.h"
#include "openssl_diffie_hellman.h"
#include "openssl_ec_diffie_hellman.h"
#include "openssl_rsa_private_key.h"
#include "openssl_rsa_public_key.h"
#include "openssl_ec_private_key.h"
#include "openssl_ec_public_key.h"
#include "openssl_x509.h"
#include "openssl_crl.h"
typedef struct private_openssl_plugin_t private_openssl_plugin_t;
/**
* private data of openssl_plugin
*/
struct private_openssl_plugin_t {
/**
* public functions
*/
openssl_plugin_t public;
};
/**
* Array of static mutexs, with CRYPTO_num_locks() mutex
*/
static mutex_t **mutex = NULL;
/**
* Locking callback for static locks
*/
static void locking_function(int mode, int type, const char *file, int line)
{
if (mutex)
{
if (mode & CRYPTO_LOCK)
{
mutex[type]->lock(mutex[type]);
}
else
{
mutex[type]->unlock(mutex[type]);
}
}
}
/**
* Implementation of dynlock
*/
struct CRYPTO_dynlock_value {
mutex_t *mutex;
};
/**
* Callback to create a dynamic lock
*/
static struct CRYPTO_dynlock_value *create_function(const char *file, int line)
{
struct CRYPTO_dynlock_value *lock;
lock = malloc_thing(struct CRYPTO_dynlock_value);
lock->mutex = mutex_create(MUTEX_TYPE_DEFAULT);
return lock;
}
/**
* Callback to (un-)lock a dynamic lock
*/
static void lock_function(int mode, struct CRYPTO_dynlock_value *lock,
const char *file, int line)
{
if (mode & CRYPTO_LOCK)
{
lock->mutex->lock(lock->mutex);
}
else
{
lock->mutex->unlock(lock->mutex);
}
}
/**
* Callback to destroy a dynamic lock
*/
static void destroy_function(struct CRYPTO_dynlock_value *lock,
const char *file, int line)
{
lock->mutex->destroy(lock->mutex);
free(lock);
}
/**
* Thread-ID callback function
*/
static unsigned long id_function(void)
{
return (unsigned long)thread_current_id();
}
/**
* initialize OpenSSL for multi-threaded use
*/
static void threading_init()
{
int i, num_locks;
CRYPTO_set_id_callback(id_function);
CRYPTO_set_locking_callback(locking_function);
CRYPTO_set_dynlock_create_callback(create_function);
CRYPTO_set_dynlock_lock_callback(lock_function);
CRYPTO_set_dynlock_destroy_callback(destroy_function);
num_locks = CRYPTO_num_locks();
mutex = malloc(sizeof(mutex_t*) * num_locks);
for (i = 0; i < num_locks; i++)
{
mutex[i] = mutex_create(MUTEX_TYPE_DEFAULT);
}
}
/**
* cleanup OpenSSL threading locks
*/
static void threading_cleanup()
{
int i, num_locks;
num_locks = CRYPTO_num_locks();
for (i = 0; i < num_locks; i++)
{
mutex[i]->destroy(mutex[i]);
}
free(mutex);
mutex = NULL;
}
/**
* Implementation of openssl_plugin_t.destroy
*/
static void destroy(private_openssl_plugin_t *this)
{
lib->crypto->remove_crypter(lib->crypto,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->remove_hasher(lib->crypto,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->remove_prf(lib->crypto,
(prf_constructor_t)openssl_sha1_prf_create);
lib->crypto->remove_dh(lib->crypto,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_rsa_private_key_load);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_rsa_private_key_gen);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_rsa_private_key_connect);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_rsa_public_key_load);
#ifndef OPENSSL_NO_EC
lib->crypto->remove_dh(lib->crypto,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_ec_private_key_load);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_ec_private_key_gen);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_ec_public_key_load);
#endif /* OPENSSL_NO_EC */
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_x509_load);
lib->creds->remove_builder(lib->creds,
(builder_function_t)openssl_crl_load);
#ifndef OPENSSL_NO_ENGINE
ENGINE_cleanup();
#endif /* OPENSSL_NO_ENGINE */
EVP_cleanup();
CONF_modules_free();
threading_cleanup();
free(this);
}
/*
* see header file
*/
plugin_t *openssl_plugin_create()
{
private_openssl_plugin_t *this = malloc_thing(private_openssl_plugin_t);
this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
threading_init();
OPENSSL_config(NULL);
OpenSSL_add_all_algorithms();
#ifndef OPENSSL_NO_ENGINE
/* activate support for hardware accelerators */
ENGINE_load_builtin_engines();
ENGINE_register_all_complete();
#endif /* OPENSSL_NO_ENGINE */
/* crypter */
lib->crypto->add_crypter(lib->crypto, ENCR_AES_CBC,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_CAMELLIA_CBC,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_3DES,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_RC5,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_IDEA,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_CAST,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_BLOWFISH,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_DES,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_DES_ECB,
(crypter_constructor_t)openssl_crypter_create);
lib->crypto->add_crypter(lib->crypto, ENCR_NULL,
(crypter_constructor_t)openssl_crypter_create);
/* hasher */
lib->crypto->add_hasher(lib->crypto, HASH_SHA1,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_MD2,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_MD4,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_MD5,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_SHA224,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_SHA256,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_SHA384,
(hasher_constructor_t)openssl_hasher_create);
lib->crypto->add_hasher(lib->crypto, HASH_SHA512,
(hasher_constructor_t)openssl_hasher_create);
/* prf */
lib->crypto->add_prf(lib->crypto, PRF_KEYED_SHA1,
(prf_constructor_t)openssl_sha1_prf_create);
/* (ec) diffie hellman */
lib->crypto->add_dh(lib->crypto, MODP_2048_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_2048_224,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_2048_256,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_1536_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
#ifndef OPENSSL_NO_EC
lib->crypto->add_dh(lib->crypto, ECP_256_BIT,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, ECP_384_BIT,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, ECP_521_BIT,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, ECP_224_BIT,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, ECP_192_BIT,
(dh_constructor_t)openssl_ec_diffie_hellman_create);
#endif /* OPENSSL_NO_EC */
lib->crypto->add_dh(lib->crypto, MODP_3072_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_4096_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_6144_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_8192_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_1024_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_1024_160,
(dh_constructor_t)openssl_diffie_hellman_create);
lib->crypto->add_dh(lib->crypto, MODP_768_BIT,
(dh_constructor_t)openssl_diffie_hellman_create);
/* rsa */
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_private_key_load);
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_private_key_gen);
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_private_key_connect);
lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_RSA,
(builder_function_t)openssl_rsa_public_key_load);
lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_ANY,
(builder_function_t)openssl_rsa_public_key_load);
#ifndef OPENSSL_NO_EC
/* ecdsa */
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
(builder_function_t)openssl_ec_private_key_load);
lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_ECDSA,
(builder_function_t)openssl_ec_private_key_gen);
lib->creds->add_builder(lib->creds, CRED_PUBLIC_KEY, KEY_ECDSA,
(builder_function_t)openssl_ec_public_key_load);
#endif /* OPENSSL_NO_EC */
/* X509 certificates */
lib->creds->add_builder(lib->creds, CRED_CERTIFICATE, CERT_X509,
(builder_function_t)openssl_x509_load);
lib->creds->add_builder(lib->creds, CRED_CERTIFICATE, CERT_X509_CRL,
(builder_function_t)openssl_crl_load);
return &this->public.plugin;
}
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