legacyprov.c
/*
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <string.h>
#include <stdio.h>
#include <openssl/core.h>
#include <openssl/core_dispatch.h>
#include <openssl/core_names.h>
#include <openssl/params.h>
#include "prov/provider_ctx.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"
/*
* Forward declarations to ensure that interface functions are correctly
* defined.
*/
static OSSL_FUNC_provider_gettable_params_fn legacy_gettable_params;
static OSSL_FUNC_provider_get_params_fn legacy_get_params;
static OSSL_FUNC_provider_query_operation_fn legacy_query;
#define ALG(NAMES, FUNC) { NAMES, "provider=legacy", FUNC }
#ifdef STATIC_LEGACY
OSSL_provider_init_fn ossl_legacy_provider_init;
# define OSSL_provider_init ossl_legacy_provider_init
#endif
/* Functions provided by the core */
static OSSL_FUNC_core_gettable_params_fn *c_gettable_params = NULL;
static OSSL_FUNC_core_get_params_fn *c_get_params = NULL;
/* Parameters we provide to the core */
static const OSSL_PARAM legacy_param_types[] = {
OSSL_PARAM_DEFN(OSSL_PROV_PARAM_NAME, OSSL_PARAM_UTF8_PTR, NULL, 0),
OSSL_PARAM_DEFN(OSSL_PROV_PARAM_VERSION, OSSL_PARAM_UTF8_PTR, NULL, 0),
OSSL_PARAM_DEFN(OSSL_PROV_PARAM_BUILDINFO, OSSL_PARAM_UTF8_PTR, NULL, 0),
OSSL_PARAM_DEFN(OSSL_PROV_PARAM_STATUS, OSSL_PARAM_INTEGER, NULL, 0),
OSSL_PARAM_END
};
static const OSSL_PARAM *legacy_gettable_params(void *provctx)
{
return legacy_param_types;
}
static int legacy_get_params(void *provctx, OSSL_PARAM params[])
{
OSSL_PARAM *p;
p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider"))
return 0;
p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
return 0;
p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
return 0;
p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_STATUS);
if (p != NULL && !OSSL_PARAM_set_int(p, ossl_prov_is_running()))
return 0;
return 1;
}
static const OSSL_ALGORITHM legacy_digests[] = {
#ifndef OPENSSL_NO_MD2
ALG("MD2", ossl_md2_functions),
#endif
#ifndef OPENSSL_NO_MD4
ALG("MD4", ossl_md4_functions),
#endif
#ifndef OPENSSL_NO_MDC2
ALG("MDC2", ossl_mdc2_functions),
#endif /* OPENSSL_NO_MDC2 */
#ifndef OPENSSL_NO_WHIRLPOOL
ALG("WHIRLPOOL", ossl_wp_functions),
#endif /* OPENSSL_NO_WHIRLPOOL */
#ifndef OPENSSL_NO_RMD160
ALG("RIPEMD-160:RIPEMD160:RIPEMD:RMD160", ossl_ripemd160_functions),
#endif /* OPENSSL_NO_RMD160 */
{ NULL, NULL, NULL }
};
static const OSSL_ALGORITHM legacy_ciphers[] = {
#ifndef OPENSSL_NO_CAST
ALG("CAST5-ECB", ossl_cast5128ecb_functions),
ALG("CAST5-CBC:CAST-CBC:CAST", ossl_cast5128cbc_functions),
ALG("CAST5-OFB", ossl_cast5128ofb64_functions),
ALG("CAST5-CFB", ossl_cast5128cfb64_functions),
#endif /* OPENSSL_NO_CAST */
#ifndef OPENSSL_NO_BF
ALG("BF-ECB", ossl_blowfish128ecb_functions),
ALG("BF-CBC:BF:BLOWFISH", ossl_blowfish128cbc_functions),
ALG("BF-OFB", ossl_blowfish64ofb64_functions),
ALG("BF-CFB", ossl_blowfish64cfb64_functions),
#endif /* OPENSSL_NO_BF */
#ifndef OPENSSL_NO_IDEA
ALG("IDEA-ECB", ossl_idea128ecb_functions),
ALG("IDEA-CBC:IDEA", ossl_idea128cbc_functions),
ALG("IDEA-OFB:IDEA-OFB64", ossl_idea128ofb64_functions),
ALG("IDEA-CFB:IDEA-CFB64", ossl_idea128cfb64_functions),
#endif /* OPENSSL_NO_IDEA */
#ifndef OPENSSL_NO_SEED
ALG("SEED-ECB", ossl_seed128ecb_functions),
ALG("SEED-CBC:SEED", ossl_seed128cbc_functions),
ALG("SEED-OFB:SEED-OFB128", ossl_seed128ofb128_functions),
ALG("SEED-CFB:SEED-CFB128", ossl_seed128cfb128_functions),
#endif /* OPENSSL_NO_SEED */
#ifndef OPENSSL_NO_RC2
ALG("RC2-ECB", ossl_rc2128ecb_functions),
ALG("RC2-CBC:RC2:RC2-128", ossl_rc2128cbc_functions),
ALG("RC2-40-CBC:RC2-40", ossl_rc240cbc_functions),
ALG("RC2-64-CBC:RC2-64", ossl_rc264cbc_functions),
ALG("RC2-CFB", ossl_rc2128cfb128_functions),
ALG("RC2-OFB", ossl_rc2128ofb128_functions),
#endif /* OPENSSL_NO_RC2 */
#ifndef OPENSSL_NO_RC4
ALG("RC4", ossl_rc4128_functions),
ALG("RC4-40", ossl_rc440_functions),
# ifndef OPENSSL_NO_MD5
ALG("RC4-HMAC-MD5", ossl_rc4_hmac_ossl_md5_functions),
# endif /* OPENSSL_NO_MD5 */
#endif /* OPENSSL_NO_RC4 */
#ifndef OPENSSL_NO_RC5
ALG("RC5-ECB", ossl_rc5128ecb_functions),
ALG("RC5-CBC:RC5", ossl_rc5128cbc_functions),
ALG("RC5-OFB", ossl_rc5128ofb64_functions),
ALG("RC5-CFB", ossl_rc5128cfb64_functions),
#endif /* OPENSSL_NO_RC5 */
#ifndef OPENSSL_NO_DES
ALG("DESX-CBC:DESX", ossl_tdes_desx_cbc_functions),
ALG("DES-ECB", ossl_des_ecb_functions),
ALG("DES-CBC:DES", ossl_des_cbc_functions),
ALG("DES-OFB", ossl_des_ofb64_functions),
ALG("DES-CFB", ossl_des_cfb64_functions),
ALG("DES-CFB1", ossl_des_cfb1_functions),
ALG("DES-CFB8", ossl_des_cfb8_functions),
#endif /* OPENSSL_NO_DES */
{ NULL, NULL, NULL }
};
static const OSSL_ALGORITHM *legacy_query(void *provctx, int operation_id,
int *no_cache)
{
*no_cache = 0;
switch (operation_id) {
case OSSL_OP_DIGEST:
return legacy_digests;
case OSSL_OP_CIPHER:
return legacy_ciphers;
}
return NULL;
}
static void legacy_teardown(void *provctx)
{
OSSL_LIB_CTX_free(PROV_LIBCTX_OF(provctx));
ossl_prov_ctx_free(provctx);
}
/* Functions we provide to the core */
static const OSSL_DISPATCH legacy_dispatch_table[] = {
{ OSSL_FUNC_PROVIDER_TEARDOWN, (void (*)(void))legacy_teardown },
{ OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))legacy_gettable_params },
{ OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params },
{ OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query },
{ 0, NULL }
};
int OSSL_provider_init(const OSSL_CORE_HANDLE *handle,
const OSSL_DISPATCH *in,
const OSSL_DISPATCH **out,
void **provctx)
{
OSSL_FUNC_core_get_libctx_fn *c_get_libctx = NULL;
OSSL_LIB_CTX *libctx = NULL;
for (; in->function_id != 0; in++) {
switch (in->function_id) {
case OSSL_FUNC_CORE_GETTABLE_PARAMS:
c_gettable_params = OSSL_FUNC_core_gettable_params(in);
break;
case OSSL_FUNC_CORE_GET_PARAMS:
c_get_params = OSSL_FUNC_core_get_params(in);
break;
case OSSL_FUNC_CORE_GET_LIBCTX:
c_get_libctx = OSSL_FUNC_core_get_libctx(in);
break;
/* Just ignore anything we don't understand */
default:
break;
}
}
if (c_get_libctx == NULL)
return 0;
if ((*provctx = ossl_prov_ctx_new()) == NULL
|| (libctx = OSSL_LIB_CTX_new()) == NULL) {
OSSL_LIB_CTX_free(libctx);
legacy_teardown(*provctx);
*provctx = NULL;
return 0;
}
ossl_prov_ctx_set0_libctx(*provctx, libctx);
ossl_prov_ctx_set0_handle(*provctx, handle);
*out = legacy_dispatch_table;
return 1;
}
