2 * Copyright 2001-2018 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
10 /* We need to use some engine deprecated APIs */
11 #define OPENSSL_SUPPRESS_DEPRECATED
13 #include "eng_local.h"
15 static ENGINE_TABLE *dh_table = NULL;
16 static const int dummy_nid = 1;
18 void ENGINE_unregister_DH(ENGINE *e)
20 engine_table_unregister(&dh_table, e);
23 static void engine_unregister_all_DH(void)
25 engine_table_cleanup(&dh_table);
28 int ENGINE_register_DH(ENGINE *e)
31 return engine_table_register(&dh_table,
32 engine_unregister_all_DH, e, &dummy_nid,
37 void ENGINE_register_all_DH(void)
41 for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
42 ENGINE_register_DH(e);
45 int ENGINE_set_default_DH(ENGINE *e)
48 return engine_table_register(&dh_table,
49 engine_unregister_all_DH, e, &dummy_nid,
55 * Exposed API function to get a functional reference from the implementation
56 * table (ie. try to get a functional reference from the tabled structural
59 ENGINE *ENGINE_get_default_DH(void)
61 return engine_table_select(&dh_table, dummy_nid);
64 /* Obtains an DH implementation from an ENGINE functional reference */
65 const DH_METHOD *ENGINE_get_DH(const ENGINE *e)
70 /* Sets an DH implementation in an ENGINE structure */
71 int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth)