1 /*
2 * Copyright 2019-2023 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_ex(OSSL_LIB_CTX * libctx,const char * name,OSSL_PARAM * params,int retain_fallbacks)18 OSSL_PROVIDER *OSSL_PROVIDER_try_load_ex(OSSL_LIB_CTX *libctx, const char *name,
19 OSSL_PARAM *params, 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, params, 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, 1);
39 ossl_provider_free(prov);
40 return NULL;
41 }
42 if (actual != prov) {
43 if (!ossl_provider_activate(actual, 1, 0)) {
44 ossl_provider_free(actual);
45 return NULL;
46 }
47 }
48
49 return actual;
50 }
51
OSSL_PROVIDER_try_load(OSSL_LIB_CTX * libctx,const char * name,int retain_fallbacks)52 OSSL_PROVIDER *OSSL_PROVIDER_try_load(OSSL_LIB_CTX *libctx, const char *name,
53 int retain_fallbacks)
54 {
55 return OSSL_PROVIDER_try_load_ex(libctx, name, NULL, retain_fallbacks);
56 }
57
OSSL_PROVIDER_load_ex(OSSL_LIB_CTX * libctx,const char * name,OSSL_PARAM * params)58 OSSL_PROVIDER *OSSL_PROVIDER_load_ex(OSSL_LIB_CTX *libctx, const char *name, OSSL_PARAM *params)
59 {
60 /* Any attempt to load a provider disables auto-loading of defaults */
61 if (ossl_provider_disable_fallback_loading(libctx))
62 return OSSL_PROVIDER_try_load_ex(libctx, name, params, 0);
63 return NULL;
64 }
65
OSSL_PROVIDER_load(OSSL_LIB_CTX * libctx,const char * name)66 OSSL_PROVIDER *OSSL_PROVIDER_load(OSSL_LIB_CTX *libctx, const char *name)
67 {
68 return OSSL_PROVIDER_load_ex(libctx, name, NULL);
69 }
70
OSSL_PROVIDER_unload(OSSL_PROVIDER * prov)71 int OSSL_PROVIDER_unload(OSSL_PROVIDER *prov)
72 {
73 if (!ossl_provider_deactivate(prov, 1))
74 return 0;
75 ossl_provider_free(prov);
76 return 1;
77 }
78
OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER * prov)79 const OSSL_PARAM *OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER *prov)
80 {
81 return ossl_provider_gettable_params(prov);
82 }
83
OSSL_PROVIDER_get_params(const OSSL_PROVIDER * prov,OSSL_PARAM params[])84 int OSSL_PROVIDER_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
85 {
86 return ossl_provider_get_params(prov, params);
87 }
88
OSSL_PROVIDER_query_operation(const OSSL_PROVIDER * prov,int operation_id,int * no_cache)89 const OSSL_ALGORITHM *OSSL_PROVIDER_query_operation(const OSSL_PROVIDER *prov,
90 int operation_id,
91 int *no_cache)
92 {
93 return ossl_provider_query_operation(prov, operation_id, no_cache);
94 }
95
OSSL_PROVIDER_unquery_operation(const OSSL_PROVIDER * prov,int operation_id,const OSSL_ALGORITHM * algs)96 void OSSL_PROVIDER_unquery_operation(const OSSL_PROVIDER *prov,
97 int operation_id,
98 const OSSL_ALGORITHM *algs)
99 {
100 ossl_provider_unquery_operation(prov, operation_id, algs);
101 }
102
OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER * prov)103 void *OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER *prov)
104 {
105 return ossl_provider_prov_ctx(prov);
106 }
107
OSSL_PROVIDER_get0_dispatch(const OSSL_PROVIDER * prov)108 const OSSL_DISPATCH *OSSL_PROVIDER_get0_dispatch(const OSSL_PROVIDER *prov)
109 {
110 return ossl_provider_get0_dispatch(prov);
111 }
112
OSSL_PROVIDER_self_test(const OSSL_PROVIDER * prov)113 int OSSL_PROVIDER_self_test(const OSSL_PROVIDER *prov)
114 {
115 return ossl_provider_self_test(prov);
116 }
117
OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER * prov,const char * capability,OSSL_CALLBACK * cb,void * arg)118 int OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER *prov,
119 const char *capability,
120 OSSL_CALLBACK *cb,
121 void *arg)
122 {
123 return ossl_provider_get_capabilities(prov, capability, cb, arg);
124 }
125
OSSL_PROVIDER_add_builtin(OSSL_LIB_CTX * libctx,const char * name,OSSL_provider_init_fn * init_fn)126 int OSSL_PROVIDER_add_builtin(OSSL_LIB_CTX *libctx, const char *name,
127 OSSL_provider_init_fn *init_fn)
128 {
129 OSSL_PROVIDER_INFO entry;
130
131 if (name == NULL || init_fn == NULL) {
132 ERR_raise(ERR_LIB_CRYPTO, ERR_R_PASSED_NULL_PARAMETER);
133 return 0;
134 }
135 memset(&entry, 0, sizeof(entry));
136 entry.name = OPENSSL_strdup(name);
137 if (entry.name == NULL)
138 return 0;
139 entry.init = init_fn;
140 if (!ossl_provider_info_add_to_store(libctx, &entry)) {
141 ossl_provider_info_clear(&entry);
142 return 0;
143 }
144 return 1;
145 }
146
OSSL_PROVIDER_get0_name(const OSSL_PROVIDER * prov)147 const char *OSSL_PROVIDER_get0_name(const OSSL_PROVIDER *prov)
148 {
149 return ossl_provider_name(prov);
150 }
151
OSSL_PROVIDER_do_all(OSSL_LIB_CTX * ctx,int (* cb)(OSSL_PROVIDER * provider,void * cbdata),void * cbdata)152 int OSSL_PROVIDER_do_all(OSSL_LIB_CTX *ctx,
153 int (*cb)(OSSL_PROVIDER *provider,
154 void *cbdata),
155 void *cbdata)
156 {
157 return ossl_provider_doall_activated(ctx, cb, cbdata);
158 }
159
