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 void ossl_method_construct_this(OSSL_PROVIDER
*provider
,
28 const OSSL_ALGORITHM
*algo
,
29 int no_store
, void *cbdata
)
31 struct construct_data_st
*data
= cbdata
;
34 if ((method
= data
->mcm
->construct(algo
, provider
, data
->mcm_data
))
39 * Note regarding putting the method in stores:
41 * we don't need to care if it actually got in or not here.
42 * If it didn't get in, it will simply not be available when
43 * ossl_method_construct() tries to get it from the store.
45 * It is *expected* that the put function increments the refcnt
46 * of the passed method.
49 if (data
->force_store
|| !no_store
) {
51 * If we haven't been told not to store,
52 * add to the global store
54 data
->mcm
->put(data
->libctx
, NULL
, method
, provider
,
55 data
->operation_id
, algo
->algorithm_names
,
56 algo
->property_definition
, data
->mcm_data
);
59 data
->mcm
->put(data
->libctx
, data
->store
, method
, provider
,
60 data
->operation_id
, algo
->algorithm_names
,
61 algo
->property_definition
, data
->mcm_data
);
63 /* refcnt-- because we're dropping the reference */
64 data
->mcm
->destruct(method
, data
->mcm_data
);
67 void *ossl_method_construct(OPENSSL_CTX
*libctx
, int operation_id
,
69 OSSL_METHOD_CONSTRUCT_METHOD
*mcm
, void *mcm_data
)
73 if ((method
= mcm
->get(libctx
, NULL
, mcm_data
)) == NULL
) {
74 struct construct_data_st cbdata
;
77 * We have a temporary store to be able to easily search among new
78 * items, or items that should find themselves in the global store.
80 if ((cbdata
.store
= mcm
->alloc_tmp_store(libctx
)) == NULL
)
83 cbdata
.libctx
= libctx
;
84 cbdata
.operation_id
= operation_id
;
85 cbdata
.force_store
= force_store
;
87 cbdata
.mcm_data
= mcm_data
;
88 ossl_algorithm_do_all(libctx
, operation_id
, NULL
,
89 ossl_method_construct_this
, &cbdata
);
91 method
= mcm
->get(libctx
, cbdata
.store
, mcm_data
);
92 mcm
->dealloc_tmp_store(cbdata
.store
);