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- /*
- * Copyright 2019 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_numbers.h>
- #include <openssl/core_names.h>
- #include <openssl/params.h>
- #include "internal/provider_algs.h"
- /* Functions provided by the core */
- static OSSL_core_get_param_types_fn *c_get_param_types = NULL;
- static OSSL_core_get_params_fn *c_get_params = NULL;
- /* Parameters we provide to the core */
- static const OSSL_ITEM legacy_param_types[] = {
- { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_NAME },
- { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_VERSION },
- { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_BUILDINFO },
- { 0, NULL }
- };
- static const OSSL_ITEM *legacy_get_param_types(const OSSL_PROVIDER *prov)
- {
- return legacy_param_types;
- }
- static int legacy_get_params(const OSSL_PROVIDER *prov,
- const OSSL_PARAM params[])
- {
- const 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;
- return 1;
- }
- static const OSSL_ALGORITHM legacy_digests[] = {
- #ifndef OPENSSL_NO_MD2
- { "MD2", "legacy=yes", md2_functions },
- #endif
- #ifndef OPENSSL_NO_MD4
- { "MD4", "legacy=yes", md4_functions },
- #endif
- #ifndef OPENSSL_NO_MDC2
- { "MDC2", "legacy=yes", mdc2_functions },
- #endif /* OPENSSL_NO_MDC2 */
- #ifndef OPENSSL_NO_WHIRLPOOL
- { "whirlpool", "legacy=yes", wp_functions },
- #endif /* OPENSSL_NO_WHIRLPOOL */
- #ifndef OPENSSL_NO_RMD160
- { "RIPEMD160", "legacy=yes", ripemd160_functions },
- #endif /* OPENSSL_NO_RMD160 */
- { NULL, NULL, NULL }
- };
- static const OSSL_ALGORITHM *legacy_query(OSSL_PROVIDER *prov,
- int operation_id,
- int *no_cache)
- {
- *no_cache = 0;
- switch (operation_id) {
- case OSSL_OP_DIGEST:
- return legacy_digests;
- }
- return NULL;
- }
- /* Functions we provide to the core */
- static const OSSL_DISPATCH legacy_dispatch_table[] = {
- { OSSL_FUNC_PROVIDER_GET_PARAM_TYPES, (void (*)(void))legacy_get_param_types },
- { 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_PROVIDER *provider,
- const OSSL_DISPATCH *in,
- const OSSL_DISPATCH **out,
- void **provctx)
- {
- OSSL_core_get_library_context_fn *c_get_libctx = NULL;
- for (; in->function_id != 0; in++) {
- switch (in->function_id) {
- case OSSL_FUNC_CORE_GET_PARAM_TYPES:
- c_get_param_types = OSSL_get_core_get_param_types(in);
- break;
- case OSSL_FUNC_CORE_GET_PARAMS:
- c_get_params = OSSL_get_core_get_params(in);
- break;
- case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
- c_get_libctx = OSSL_get_core_get_library_context(in);
- break;
- /* Just ignore anything we don't understand */
- default:
- break;
- }
- }
- if (c_get_libctx == NULL)
- return 0;
- *out = legacy_dispatch_table;
- /*
- * We want to make sure that all calls from this provider that requires
- * a library context use the same context as the one used to call our
- * functions. We do that by passing it along as the provider context.
- */
- *provctx = c_get_libctx(provider);
- return 1;
- }
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