1 /*
2 * Copyright 2019-2021 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 <openssl/err.h>
12 #include <openssl/cryptoerr.h>
13 #include <openssl/provider.h>
14 #include <openssl/core_names.h>
15 #include "internal/provider.h"
16 #include "provider_local.h"
17
OSSL_PROVIDER_try_load(OSSL_LIB_CTX * libctx,const char * name,int retain_fallbacks)18 OSSL_PROVIDER *OSSL_PROVIDER_try_load(OSSL_LIB_CTX *libctx, const char *name,
19 int retain_fallbacks)
20 {
21 OSSL_PROVIDER *prov = NULL, *actual;
22 int isnew = 0;
23
24 /* Find it or create it */
25 if ((prov = ossl_provider_find(libctx, name, 0)) == NULL) {
26 if ((prov = ossl_provider_new(libctx, name, NULL, 0)) == NULL)
27 return NULL;
28 isnew = 1;
29 }
30
31 if (!ossl_provider_activate(prov, 1, 0)) {
32 ossl_provider_free(prov);
33 return NULL;
34 }
35
36 actual = prov;
37 if (isnew && !ossl_provider_add_to_store(prov, &actual, retain_fallbacks)) {
38 ossl_provider_deactivate(prov);
39 ossl_provider_free(prov);
40 return NULL;
41 }
42
43 return actual;
44 }
45
OSSL_PROVIDER_load(OSSL_LIB_CTX * libctx,const char * name)46 OSSL_PROVIDER *OSSL_PROVIDER_load(OSSL_LIB_CTX *libctx, const char *name)
47 {
48 /* Any attempt to load a provider disables auto-loading of defaults */
49 if (ossl_provider_disable_fallback_loading(libctx))
50 return OSSL_PROVIDER_try_load(libctx, name, 0);
51 return NULL;
52 }
53
OSSL_PROVIDER_unload(OSSL_PROVIDER * prov)54 int OSSL_PROVIDER_unload(OSSL_PROVIDER *prov)
55 {
56 if (!ossl_provider_deactivate(prov))
57 return 0;
58 ossl_provider_free(prov);
59 return 1;
60 }
61
OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER * prov)62 const OSSL_PARAM *OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER *prov)
63 {
64 return ossl_provider_gettable_params(prov);
65 }
66
OSSL_PROVIDER_get_params(const OSSL_PROVIDER * prov,OSSL_PARAM params[])67 int OSSL_PROVIDER_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
68 {
69 return ossl_provider_get_params(prov, params);
70 }
71
OSSL_PROVIDER_query_operation(const OSSL_PROVIDER * prov,int operation_id,int * no_cache)72 const OSSL_ALGORITHM *OSSL_PROVIDER_query_operation(const OSSL_PROVIDER *prov,
73 int operation_id,
74 int *no_cache)
75 {
76 return ossl_provider_query_operation(prov, operation_id, no_cache);
77 }
78
OSSL_PROVIDER_unquery_operation(const OSSL_PROVIDER * prov,int operation_id,const OSSL_ALGORITHM * algs)79 void OSSL_PROVIDER_unquery_operation(const OSSL_PROVIDER *prov,
80 int operation_id,
81 const OSSL_ALGORITHM *algs)
82 {
83 ossl_provider_unquery_operation(prov, operation_id, algs);
84 }
85
OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER * prov)86 void *OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER *prov)
87 {
88 return ossl_provider_prov_ctx(prov);
89 }
90
OSSL_PROVIDER_get0_dispatch(const OSSL_PROVIDER * prov)91 const OSSL_DISPATCH *OSSL_PROVIDER_get0_dispatch(const OSSL_PROVIDER *prov)
92 {
93 return ossl_provider_get0_dispatch(prov);
94 }
95
OSSL_PROVIDER_self_test(const OSSL_PROVIDER * prov)96 int OSSL_PROVIDER_self_test(const OSSL_PROVIDER *prov)
97 {
98 return ossl_provider_self_test(prov);
99 }
100
OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER * prov,const char * capability,OSSL_CALLBACK * cb,void * arg)101 int OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER *prov,
102 const char *capability,
103 OSSL_CALLBACK *cb,
104 void *arg)
105 {
106 return ossl_provider_get_capabilities(prov, capability, cb, arg);
107 }
108
OSSL_PROVIDER_add_builtin(OSSL_LIB_CTX * libctx,const char * name,OSSL_provider_init_fn * init_fn)109 int OSSL_PROVIDER_add_builtin(OSSL_LIB_CTX *libctx, const char *name,
110 OSSL_provider_init_fn *init_fn)
111 {
112 OSSL_PROVIDER_INFO entry;
113
114 if (name == NULL || init_fn == NULL) {
115 ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
116 return 0;
117 }
118 memset(&entry, 0, sizeof(entry));
119 entry.name = OPENSSL_strdup(name);
120 if (entry.name == NULL) {
121 ERR_raise(ERR_LIB_CRYPTO, ERR_R_MALLOC_FAILURE);
122 return 0;
123 }
124 entry.init = init_fn;
125 if (!ossl_provider_info_add_to_store(libctx, &entry)) {
126 ossl_provider_info_clear(&entry);
127 return 0;
128 }
129 return 1;
130 }
131
OSSL_PROVIDER_get0_name(const OSSL_PROVIDER * prov)132 const char *OSSL_PROVIDER_get0_name(const OSSL_PROVIDER *prov)
133 {
134 return ossl_provider_name(prov);
135 }
136
OSSL_PROVIDER_do_all(OSSL_LIB_CTX * ctx,int (* cb)(OSSL_PROVIDER * provider,void * cbdata),void * cbdata)137 int OSSL_PROVIDER_do_all(OSSL_LIB_CTX *ctx,
138 int (*cb)(OSSL_PROVIDER *provider,
139 void *cbdata),
140 void *cbdata)
141 {
142 return ossl_provider_doall_activated(ctx, cb, cbdata);
143 }
144