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d0308923 MC |
1 | /* |
2 | * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
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 | |
8 | */ | |
9 | ||
10 | #include <string.h> | |
11 | #include <stdio.h> | |
12 | #include <openssl/core.h> | |
13 | #include <openssl/core_numbers.h> | |
14 | #include <openssl/core_names.h> | |
15 | #include <openssl/params.h> | |
d5e5e2ff | 16 | #include "internal/provider_algs.h" |
d0308923 MC |
17 | |
18 | /* Functions provided by the core */ | |
dca97d00 | 19 | static OSSL_core_gettable_params_fn *c_gettable_params = NULL; |
d0308923 MC |
20 | static OSSL_core_get_params_fn *c_get_params = NULL; |
21 | ||
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 }, | |
27 | { 0, NULL } | |
28 | }; | |
29 | ||
dca97d00 | 30 | static const OSSL_ITEM *legacy_gettable_params(const OSSL_PROVIDER *prov) |
d0308923 MC |
31 | { |
32 | return legacy_param_types; | |
33 | } | |
34 | ||
4e7991b4 | 35 | static int legacy_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[]) |
d0308923 | 36 | { |
4e7991b4 | 37 | OSSL_PARAM *p; |
d0308923 MC |
38 | |
39 | p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME); | |
40 | if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Legacy Provider")) | |
41 | return 0; | |
42 | p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION); | |
43 | if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR)) | |
44 | return 0; | |
45 | p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO); | |
46 | if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR)) | |
47 | return 0; | |
48 | ||
49 | return 1; | |
50 | } | |
51 | ||
d0308923 MC |
52 | static const OSSL_ALGORITHM legacy_digests[] = { |
53 | #ifndef OPENSSL_NO_MD2 | |
54 | { "MD2", "legacy=yes", md2_functions }, | |
55 | #endif | |
d5e5e2ff SL |
56 | |
57 | #ifndef OPENSSL_NO_MD4 | |
58 | { "MD4", "legacy=yes", md4_functions }, | |
59 | #endif | |
60 | ||
61 | #ifndef OPENSSL_NO_MDC2 | |
62 | { "MDC2", "legacy=yes", mdc2_functions }, | |
63 | #endif /* OPENSSL_NO_MDC2 */ | |
64 | ||
65 | #ifndef OPENSSL_NO_WHIRLPOOL | |
66 | { "whirlpool", "legacy=yes", wp_functions }, | |
67 | #endif /* OPENSSL_NO_WHIRLPOOL */ | |
68 | ||
69 | #ifndef OPENSSL_NO_RMD160 | |
70 | { "RIPEMD160", "legacy=yes", ripemd160_functions }, | |
71 | #endif /* OPENSSL_NO_RMD160 */ | |
72 | ||
d0308923 MC |
73 | { NULL, NULL, NULL } |
74 | }; | |
75 | ||
76 | static const OSSL_ALGORITHM *legacy_query(OSSL_PROVIDER *prov, | |
77 | int operation_id, | |
78 | int *no_cache) | |
79 | { | |
80 | *no_cache = 0; | |
81 | switch (operation_id) { | |
82 | case OSSL_OP_DIGEST: | |
83 | return legacy_digests; | |
84 | } | |
85 | return NULL; | |
86 | } | |
87 | ||
88 | /* Functions we provide to the core */ | |
89 | static const OSSL_DISPATCH legacy_dispatch_table[] = { | |
dca97d00 | 90 | { OSSL_FUNC_PROVIDER_GETTABLE_PARAMS, (void (*)(void))legacy_gettable_params }, |
d0308923 MC |
91 | { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))legacy_get_params }, |
92 | { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))legacy_query }, | |
93 | { 0, NULL } | |
94 | }; | |
95 | ||
96 | int OSSL_provider_init(const OSSL_PROVIDER *provider, | |
97 | const OSSL_DISPATCH *in, | |
a39eb840 RL |
98 | const OSSL_DISPATCH **out, |
99 | void **provctx) | |
d0308923 | 100 | { |
8013a933 RL |
101 | OSSL_core_get_library_context_fn *c_get_libctx = NULL; |
102 | ||
d0308923 MC |
103 | for (; in->function_id != 0; in++) { |
104 | switch (in->function_id) { | |
dca97d00 RL |
105 | case OSSL_FUNC_CORE_GETTABLE_PARAMS: |
106 | c_gettable_params = OSSL_get_core_gettable_params(in); | |
d0308923 MC |
107 | break; |
108 | case OSSL_FUNC_CORE_GET_PARAMS: | |
109 | c_get_params = OSSL_get_core_get_params(in); | |
110 | break; | |
8013a933 RL |
111 | case OSSL_FUNC_CORE_GET_LIBRARY_CONTEXT: |
112 | c_get_libctx = OSSL_get_core_get_library_context(in); | |
113 | break; | |
d0308923 MC |
114 | /* Just ignore anything we don't understand */ |
115 | default: | |
116 | break; | |
117 | } | |
118 | } | |
119 | ||
8013a933 RL |
120 | if (c_get_libctx == NULL) |
121 | return 0; | |
122 | ||
d0308923 | 123 | *out = legacy_dispatch_table; |
8013a933 RL |
124 | |
125 | /* | |
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. | |
129 | */ | |
130 | *provctx = c_get_libctx(provider); | |
d0308923 MC |
131 | return 1; |
132 | } |