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Commit | Line | Data |
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b1322259 RS |
1 | /* |
2 | * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved. | |
354c3ace | 3 | * |
b1322259 RS |
4 | * Licensed under the OpenSSL license (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 | |
354c3ace BL |
8 | */ |
9 | ||
14cfde9c | 10 | #include "eng_int.h" |
354c3ace | 11 | |
b6d1e52d GT |
12 | static ENGINE_TABLE *dh_table = NULL; |
13 | static const int dummy_nid = 1; | |
354c3ace | 14 | |
b6d1e52d | 15 | void ENGINE_unregister_DH(ENGINE *e) |
0f113f3e MC |
16 | { |
17 | engine_table_unregister(&dh_table, e); | |
18 | } | |
354c3ace | 19 | |
6d52f260 | 20 | static void engine_unregister_all_DH(void) |
0f113f3e MC |
21 | { |
22 | engine_table_cleanup(&dh_table); | |
23 | } | |
354c3ace | 24 | |
b6d1e52d | 25 | int ENGINE_register_DH(ENGINE *e) |
0f113f3e MC |
26 | { |
27 | if (e->dh_meth) | |
28 | return engine_table_register(&dh_table, | |
29 | engine_unregister_all_DH, e, &dummy_nid, | |
30 | 1, 0); | |
31 | return 1; | |
32 | } | |
354c3ace | 33 | |
3cb7c5cf | 34 | void ENGINE_register_all_DH(void) |
0f113f3e MC |
35 | { |
36 | ENGINE *e; | |
354c3ace | 37 | |
0f113f3e MC |
38 | for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) |
39 | ENGINE_register_DH(e); | |
40 | } | |
354c3ace | 41 | |
b6d1e52d | 42 | int ENGINE_set_default_DH(ENGINE *e) |
0f113f3e MC |
43 | { |
44 | if (e->dh_meth) | |
45 | return engine_table_register(&dh_table, | |
46 | engine_unregister_all_DH, e, &dummy_nid, | |
47 | 1, 1); | |
48 | return 1; | |
49 | } | |
0e360199 | 50 | |
0f113f3e MC |
51 | /* |
52 | * Exposed API function to get a functional reference from the implementation | |
b6d1e52d | 53 | * table (ie. try to get a functional reference from the tabled structural |
0f113f3e MC |
54 | * references). |
55 | */ | |
b6d1e52d | 56 | ENGINE *ENGINE_get_default_DH(void) |
0f113f3e MC |
57 | { |
58 | return engine_table_select(&dh_table, dummy_nid); | |
59 | } | |
0e360199 | 60 | |
b6d1e52d GT |
61 | /* Obtains an DH implementation from an ENGINE functional reference */ |
62 | const DH_METHOD *ENGINE_get_DH(const ENGINE *e) | |
0f113f3e MC |
63 | { |
64 | return e->dh_meth; | |
65 | } | |
0e360199 | 66 | |
b6d1e52d GT |
67 | /* Sets an DH implementation in an ENGINE structure */ |
68 | int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth) | |
0f113f3e MC |
69 | { |
70 | e->dh_meth = dh_meth; | |
71 | return 1; | |
72 | } |