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_gettable_params_fn *c_gettable_params = 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_gettable_params(const OSSL_PROVIDER *prov)
32 return legacy_param_types;
35 static int legacy_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
39 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
40 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider"))
42 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
43 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
45 p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
46 if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
52 static const OSSL_ALGORITHM legacy_digests[] = {
53 #ifndef OPENSSL_NO_MD2
54 { "MD2", "legacy=yes", md2_functions },
57 #ifndef OPENSSL_NO_MD4
58 { "MD4", "legacy=yes", md4_functions },
61 #ifndef OPENSSL_NO_MDC2
62 { "MDC2", "legacy=yes", mdc2_functions },
63 #endif /* OPENSSL_NO_MDC2 */
65 #ifndef OPENSSL_NO_WHIRLPOOL
66 { "whirlpool", "legacy=yes", wp_functions },
67 #endif /* OPENSSL_NO_WHIRLPOOL */
69 #ifndef OPENSSL_NO_RMD160
70 { "RIPEMD160", "legacy=yes", ripemd160_functions },
71 #endif /* OPENSSL_NO_RMD160 */
76 static const OSSL_ALGORITHM *legacy_query(OSSL_PROVIDER *prov,
81 switch (operation_id) {
83 return legacy_digests;
88 /* Functions we provide to the core */
89 static const OSSL_DISPATCH legacy_dispatch_table[] = {
90 { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))legacy_gettable_params },
91 { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params },
92 { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query },
96 int OSSL_provider_init(const OSSL_PROVIDER *provider,
97 const OSSL_DISPATCH *in,
98 const OSSL_DISPATCH **out,
101 OSSL_core_get_library_context_fn *c_get_libctx = NULL;
103 for (; in->function_id != 0; in++) {
104 switch (in->function_id) {
105 case OSSL_FUNC_CORE_GETTABLE_PARAMS:
106 c_gettable_params = OSSL_get_core_gettable_params(in);
108 case OSSL_FUNC_CORE_GET_PARAMS:
109 c_get_params = OSSL_get_core_get_params(in);
111 case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT:
112 c_get_libctx = OSSL_get_core_get_library_context(in);
114 /* Just ignore anything we don't understand */
120 if (c_get_libctx == NULL)
123 *out = legacy_dispatch_table;
126 * We want to make sure that all calls from this provider that requires
127 * a library context use the same context as the one used to call our
128 * functions. We do that by passing it along as the provider context.
130 *provctx = c_get_libctx(provider);