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 <openssl/core.h> |
11 | #include <openssl/core_numbers.h> |
12 | #include "internal/core.h" |
13 | #include "internal/property.h" |
14 | #include "internal/provider.h" |
15 | |
16 | struct algorithm_data_st { |
17 | OPENSSL_CTX *libctx; |
18 | int operation_id; /* May be zero for finding them all */ |
19 | void (*fn)(OSSL_PROVIDER *, const OSSL_ALGORITHM *, int no_store, |
20 | void *data); |
21 | void *data; |
22 | }; |
23 | |
24 | static int algorithm_do_this(OSSL_PROVIDER *provider, void *cbdata) |
25 | { |
26 | struct algorithm_data_st *data = cbdata; |
27 | int no_store = 0; /* Assume caching is ok */ |
28 | int first_operation = 1; |
29 | int last_operation = OSSL_OP__HIGHEST; |
30 | int cur_operation; |
31 | int ok = 0; |
32 | |
33 | if (data->operation_id != 0) |
34 | first_operation = last_operation = data->operation_id; |
35 | |
36 | for (cur_operation = first_operation; |
37 | cur_operation <= last_operation; |
38 | cur_operation++) { |
39 | const OSSL_ALGORITHM *map = |
40 | ossl_provider_query_operation(provider, data->operation_id, |
41 | &no_store); |
42 | |
43 | if (map == NULL) |
44 | break; |
45 | |
46 | ok = 1; /* As long as we've found *something* */ |
47 | while (map->algorithm_names != NULL) { |
48 | const OSSL_ALGORITHM *thismap = map++; |
49 | |
50 | data->fn(provider, thismap, no_store, data->data); |
51 | } |
52 | } |
53 | |
54 | return ok; |
55 | } |
56 | |
57 | void ossl_algorithm_do_all(OPENSSL_CTX *libctx, int operation_id, |
58 | OSSL_PROVIDER *provider, |
59 | void (*fn)(OSSL_PROVIDER *provider, |
60 | const OSSL_ALGORITHM *algo, |
61 | int no_store, void *data), |
62 | void *data) |
63 | { |
64 | struct algorithm_data_st cbdata; |
65 | |
66 | cbdata.libctx = libctx; |
67 | cbdata.operation_id = operation_id; |
68 | cbdata.fn = fn; |
69 | cbdata.data = data; |
70 | |
71 | if (provider == NULL) |
72 | ossl_provider_forall_loaded(libctx, algorithm_do_this, &cbdata); |
73 | else |
74 | algorithm_do_this(provider, &cbdata); |
75 | } |
76 | |