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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> | |
16 | ||
17 | /* Functions provided by the core */ | |
18 | static OSSL_core_get_param_types_fn *c_get_param_types = NULL; | |
19 | static OSSL_core_get_params_fn *c_get_params = NULL; | |
20 | ||
21 | /* Parameters we provide to the core */ | |
22 | static const OSSL_ITEM deflt_param_types[] = { | |
23 | { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_NAME }, | |
24 | { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_VERSION }, | |
25 | { OSSL_PARAM_UTF8_PTR, OSSL_PROV_PARAM_BUILDINFO }, | |
26 | { 0, NULL } | |
27 | }; | |
28 | ||
29 | static const OSSL_ITEM *deflt_get_param_types(const OSSL_PROVIDER *prov) | |
30 | { | |
31 | return deflt_param_types; | |
32 | } | |
33 | ||
34 | static int deflt_get_params(const OSSL_PROVIDER *prov, | |
35 | const OSSL_PARAM params[]) | |
36 | { | |
37 | const OSSL_PARAM *p; | |
38 | ||
39 | p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME); | |
40 | if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default 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 | ||
52 | /* Functions we provide to the core */ | |
53 | static const OSSL_DISPATCH deflt_dispatch_table[] = { | |
54 | { OSSL_FUNC_PROVIDER_GET_PARAM_TYPES, (void (*)(void))deflt_get_param_types }, | |
55 | { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params }, | |
56 | { 0, NULL } | |
57 | }; | |
58 | ||
59 | OSSL_provider_init_fn ossl_default_provider_init; | |
60 | ||
61 | int ossl_default_provider_init(const OSSL_PROVIDER *provider, | |
62 | const OSSL_DISPATCH *in, | |
63 | const OSSL_DISPATCH **out) | |
64 | { | |
65 | for (; in->function_id != 0; in++) { | |
66 | switch (in->function_id) { | |
67 | case OSSL_FUNC_CORE_GET_PARAM_TYPES: | |
68 | c_get_param_types = OSSL_get_core_get_param_types(in); | |
69 | break; | |
70 | case OSSL_FUNC_CORE_GET_PARAMS: | |
71 | c_get_params = OSSL_get_core_get_params(in); | |
72 | break; | |
73 | default: | |
74 | /* Just ignore anything we don't understand */ | |
75 | break; | |
76 | } | |
77 | } | |
78 | ||
79 | *out = deflt_dispatch_table; | |
80 | return 1; | |
81 | } |