]>
Commit | Line | Data |
---|---|---|
9e11fe0d RL |
1 | /* |
2 | * Copyright 2019 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 <stddef.h> | |
11 | ||
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" | |
17 | ||
18 | struct construct_data_st { | |
19 | OPENSSL_CTX *libctx; | |
20 | OSSL_METHOD_STORE *store; | |
21 | int operation_id; | |
22 | int force_store; | |
23 | OSSL_METHOD_CONSTRUCT_METHOD *mcm; | |
24 | void *mcm_data; | |
25 | }; | |
26 | ||
84d167f6 RL |
27 | static void ossl_method_construct_this(OSSL_PROVIDER *provider, |
28 | const OSSL_ALGORITHM *algo, | |
29 | int no_store, void *cbdata) | |
9e11fe0d RL |
30 | { |
31 | struct construct_data_st *data = cbdata; | |
84d167f6 | 32 | void *method = NULL; |
9e11fe0d | 33 | |
36fa4d8a RL |
34 | if ((method = data->mcm->construct(algo, provider, data->mcm_data)) |
35 | == NULL) | |
84d167f6 RL |
36 | return; |
37 | ||
38 | /* | |
39 | * Note regarding putting the method in stores: | |
40 | * | |
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. | |
44 | * | |
45 | * It is *expected* that the put function increments the refcnt | |
46 | * of the passed method. | |
47 | */ | |
48 | ||
49 | if (data->force_store || !no_store) { | |
a3830831 | 50 | /* |
84d167f6 RL |
51 | * If we haven't been told not to store, |
52 | * add to the global store | |
a3830831 | 53 | */ |
c1d56231 | 54 | data->mcm->put(data->libctx, NULL, method, provider, |
695d195b | 55 | data->operation_id, algo->algorithm_names, |
84d167f6 | 56 | algo->property_definition, data->mcm_data); |
9e11fe0d RL |
57 | } |
58 | ||
c1d56231 | 59 | data->mcm->put(data->libctx, data->store, method, provider, |
695d195b | 60 | data->operation_id, algo->algorithm_names, |
c1d56231 | 61 | algo->property_definition, data->mcm_data); |
84d167f6 RL |
62 | |
63 | /* refcnt-- because we're dropping the reference */ | |
64 | data->mcm->destruct(method, data->mcm_data); | |
9e11fe0d RL |
65 | } |
66 | ||
67 | void *ossl_method_construct(OPENSSL_CTX *libctx, int operation_id, | |
9e11fe0d RL |
68 | int force_store, |
69 | OSSL_METHOD_CONSTRUCT_METHOD *mcm, void *mcm_data) | |
70 | { | |
71 | void *method = NULL; | |
72 | ||
f7c16d48 | 73 | if ((method = mcm->get(libctx, NULL, mcm_data)) == NULL) { |
9e11fe0d RL |
74 | struct construct_data_st cbdata; |
75 | ||
76 | /* | |
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. | |
79 | */ | |
1aedc35f | 80 | if ((cbdata.store = mcm->alloc_tmp_store(libctx)) == NULL) |
9e11fe0d RL |
81 | goto fin; |
82 | ||
83 | cbdata.libctx = libctx; | |
84 | cbdata.operation_id = operation_id; | |
85 | cbdata.force_store = force_store; | |
86 | cbdata.mcm = mcm; | |
87 | cbdata.mcm_data = mcm_data; | |
84d167f6 RL |
88 | ossl_algorithm_do_all(libctx, operation_id, NULL, |
89 | ossl_method_construct_this, &cbdata); | |
9e11fe0d | 90 | |
f7c16d48 | 91 | method = mcm->get(libctx, cbdata.store, mcm_data); |
9e11fe0d RL |
92 | mcm->dealloc_tmp_store(cbdata.store); |
93 | } | |
94 | ||
95 | fin: | |
96 | return method; | |
97 | } |