2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 #include <openssl/core.h>
13 #include <openssl/core_numbers.h>
14 #include <openssl/core_names.h>
15 #include <openssl/params.h>
16 #include "internal/provider_algs.h"
18 /* Functions provided by the core */
19 static OSSL_core_get_param_types_fn *c_get_param_types = NULL;
20 static OSSL_core_get_params_fn *c_get_params = NULL;
22 /* Parameters we provide to the core */
23 static const OSSL_ITEM legacy_param_types[] = {
24 { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_NAME },
25 { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_VERSION },
26 { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_BUILDINFO },
30 static const OSSL_ITEM *legacy_get_param_types(const OSSL_PROVIDER *prov)
32 return legacy_param_types;
35 static int legacy_get_params(const OSSL_PROVIDER *prov,
36 const OSSL_PARAM params[])
40 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
41 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider"))
43 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
44 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
46 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
47 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
53 static const OSSL_ALGORITHM legacy_digests[] = {
54 #ifndef OPENSSL_NO_MD2
55 { "MD2", "legacy=yes", md2_functions },
58 #ifndef OPENSSL_NO_MD4
59 { "MD4", "legacy=yes", md4_functions },
62 #ifndef OPENSSL_NO_MDC2
63 { "MDC2", "legacy=yes", mdc2_functions },
64 #endif /* OPENSSL_NO_MDC2 */
66 #ifndef OPENSSL_NO_WHIRLPOOL
67 { "whirlpool", "legacy=yes", wp_functions },
68 #endif /* OPENSSL_NO_WHIRLPOOL */
70 #ifndef OPENSSL_NO_RMD160
71 { "RIPEMD160", "legacy=yes", ripemd160_functions },
72 #endif /* OPENSSL_NO_RMD160 */
77 static const OSSL_ALGORITHM *legacy_query(OSSL_PROVIDER *prov,
82 switch (operation_id) {
84 return legacy_digests;
89 /* Functions we provide to the core */
90 static const OSSL_DISPATCH legacy_dispatch_table[] = {
91 { OSSL_FUNC_PROVIDER_GET_PARAM_TYPES, (void (*)(void))legacy_get_param_types },
92 { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params },
93 { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query },
97 int OSSL_provider_init(const OSSL_PROVIDER *provider,
98 const OSSL_DISPATCH *in,
99 const OSSL_DISPATCH **out,
102 OSSL_core_get_library_context_fn *c_get_libctx = NULL;
104 for (; in->function_id != 0; in++) {
105 switch (in->function_id) {
106 case OSSL_FUNC_CORE_GET_PARAM_TYPES:
107 c_get_param_types = OSSL_get_core_get_param_types(in);
109 case OSSL_FUNC_CORE_GET_PARAMS:
110 c_get_params = OSSL_get_core_get_params(in);
112 case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
113 c_get_libctx = OSSL_get_core_get_library_context(in);
115 /* Just ignore anything we don't understand */
121 if (c_get_libctx == NULL)
124 *out = legacy_dispatch_table;
127 * We want to make sure that all calls from this provider that requires
128 * a library context use the same context as the one used to call our
129 * functions. We do that by passing it along as the provider context.
131 *provctx = c_get_libctx(provider);