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);
37 while (map->algorithm_name != NULL) {
38 const OSSL_ALGORITHM *thismap = map++;
41 if ((method = data->mcm->construct(thismap->algorithm_name,
42 thismap->implementation, provider,
43 data->mcm_data)) == NULL)
47 * Note regarding putting the method in stores:
49 * we don't need to care if it actually got in or not here.
50 * If it didn't get in, it will simply not be available when
51 * ossl_method_construct() tries to get it from the store.
53 * It is *expected* that the put function increments the refcnt
54 * of the passed method.
57 if (data->force_store || !no_store) {
59 * If we haven't been told not to store,
60 * add to the global store
62 data->mcm->put(data->libctx, NULL, method, data->operation_id,
63 thismap->algorithm_name,
64 thismap->property_definition, data->mcm_data);
67 data->mcm->put(data->libctx, data->store, method, data->operation_id,
68 thismap->algorithm_name, thismap->property_definition,
71 /* refcnt-- because we're dropping the reference */
72 data->mcm->destruct(method, data->mcm_data);
78 void *ossl_method_construct(OPENSSL_CTX *libctx, int operation_id,
79 const char *name, const char *propquery,
81 OSSL_METHOD_CONSTRUCT_METHOD *mcm, void *mcm_data)
86 mcm->get(libctx, NULL, operation_id, name, propquery, mcm_data))
88 struct construct_data_st cbdata;
91 * We have a temporary store to be able to easily search among new
92 * items, or items that should find themselves in the global store.
94 if ((cbdata.store = mcm->alloc_tmp_store(libctx)) == NULL)
97 cbdata.libctx = libctx;
98 cbdata.operation_id = operation_id;
99 cbdata.force_store = force_store;
101 cbdata.mcm_data = mcm_data;
102 ossl_provider_forall_loaded(libctx, ossl_method_construct_this,
105 method = mcm->get(libctx, cbdata.store, operation_id, name,
106 propquery, mcm_data);
107 mcm->dealloc_tmp_store(cbdata.store);