2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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
12 #include <openssl/core.h>
13 #include "internal/cryptlib.h"
14 #include "internal/core.h"
15 #include "internal/property.h"
16 #include "internal/provider.h"
18 struct construct_data_st {
20 OSSL_METHOD_STORE *store;
23 OSSL_METHOD_CONSTRUCT_METHOD *mcm;
27 static int ossl_method_construct_this(OSSL_PROVIDER *provider, void *cbdata)
29 struct construct_data_st *data = cbdata;
30 int no_store = 0; /* Assume caching is ok */
31 const OSSL_ALGORITHM *map =
32 ossl_provider_query_operation(provider, data->operation_id, &no_store);
34 while (map->algorithm_name != NULL) {
35 const OSSL_ALGORITHM *thismap = map++;
38 if ((method = data->mcm->construct(thismap->algorithm_name,
39 thismap->implementation, provider,
40 data->mcm_data)) == NULL)
44 * Note regarding putting the method in stores:
46 * we don't need to care if it actually got in or not here.
47 * If it didn't get in, it will simply not be available when
48 * ossl_method_construct() tries to get it from the store.
50 * It is *expected* that the put function increments the refcnt
51 * of the passed method.
54 if (data->force_store || !no_store) {
56 * If we haven't been told not to store,
57 * add to the global store
59 data->mcm->put(data->libctx, NULL, method,
60 thismap->algorithm_name,
61 thismap->property_definition, data->mcm_data);
64 data->mcm->put(data->libctx, data->store, method,
65 thismap->algorithm_name, thismap->property_definition,
68 /* refcnt-- because we're dropping the reference */
69 data->mcm->destruct(method, data->mcm_data);
75 void *ossl_method_construct(OPENSSL_CTX *libctx, int operation_id,
76 const char *name, const char *propquery,
78 OSSL_METHOD_CONSTRUCT_METHOD *mcm, void *mcm_data)
83 mcm->get(libctx, NULL, name, propquery, mcm_data)) == NULL) {
84 struct construct_data_st cbdata;
87 * We have a temporary store to be able to easily search among new
88 * items, or items that should find themselves in the global store.
90 if ((cbdata.store = mcm->alloc_tmp_store(libctx)) == NULL)
93 cbdata.libctx = libctx;
94 cbdata.operation_id = operation_id;
95 cbdata.force_store = force_store;
97 cbdata.mcm_data = mcm_data;
98 ossl_provider_forall_loaded(libctx, ossl_method_construct_this,
101 method = mcm->get(libctx, cbdata.store, name, propquery, mcm_data);
102 mcm->dealloc_tmp_store(cbdata.store);