Add the provider_algs.h internal header file
[openssl.git] / providers / default / defltprov.c
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 #include "internal/provider_algs.h"
17
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;
21
22 /* Parameters we provide to the core */
23 static const OSSL_ITEM deflt_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
30 static const OSSL_ITEM *deflt_get_param_types(const OSSL_PROVIDER *prov)
31 {
32     return deflt_param_types;
33 }
34
35 static int deflt_get_params(const OSSL_PROVIDER *prov,
36                             const OSSL_PARAM params[])
37 {
38     const OSSL_PARAM *p;
39
40     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_NAME);
41     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, "OpenSSL Default Provider"))
42         return 0;
43     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_VERSION);
44     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_VERSION_STR))
45         return 0;
46     p = OSSL_PARAM_locate(params, OSSL_PROV_PARAM_BUILDINFO);
47     if (p != NULL && !OSSL_PARAM_set_utf8_ptr(p, OPENSSL_FULL_VERSION_STR))
48         return 0;
49
50     return 1;
51 }
52
53 static const OSSL_ALGORITHM deflt_digests[] = {
54     { "SHA256", "default=yes", sha256_functions },
55     { NULL, NULL, NULL }
56 };
57
58 static const OSSL_ALGORITHM deflt_ciphers[] = {
59     { "AES-256-ECB", "default=yes", aes256ecb_functions },
60     { NULL, NULL, NULL }
61 };
62
63 static const OSSL_ALGORITHM *deflt_query(OSSL_PROVIDER *prov,
64                                          int operation_id,
65                                          int *no_cache)
66 {
67     *no_cache = 0;
68     switch (operation_id) {
69     case OSSL_OP_DIGEST:
70         return deflt_digests;
71     case OSSL_OP_CIPHER:
72         return deflt_ciphers;
73     }
74     return NULL;
75 }
76
77 /* Functions we provide to the core */
78 static const OSSL_DISPATCH deflt_dispatch_table[] = {
79     { OSSL_FUNC_PROVIDER_GET_PARAM_TYPES, (void (*)(void))deflt_get_param_types },
80     { OSSL_FUNC_PROVIDER_GET_PARAMS, (void (*)(void))deflt_get_params },
81     { OSSL_FUNC_PROVIDER_QUERY_OPERATION, (void (*)(void))deflt_query },
82     { 0, NULL }
83 };
84
85 OSSL_provider_init_fn ossl_default_provider_init;
86
87 int ossl_default_provider_init(const OSSL_PROVIDER *provider,
88                                const OSSL_DISPATCH *in,
89                                const OSSL_DISPATCH **out)
90 {
91     for (; in->function_id != 0; in++) {
92         switch (in->function_id) {
93         case OSSL_FUNC_CORE_GET_PARAM_TYPES:
94             c_get_param_types = OSSL_get_core_get_param_types(in);
95             break;
96         case OSSL_FUNC_CORE_GET_PARAMS:
97             c_get_params = OSSL_get_core_get_params(in);
98             break;
99         default:
100             /* Just ignore anything we don't understand */
101             break;
102         }
103     }
104
105     *out = deflt_dispatch_table;
106     return 1;
107 }