1 /* $OpenBSD: tb_store.c,v 1.4 2014/06/12 15:49:29 deraadt Exp $ */
2 /* ====================================================================
3  * Copyright (c) 2003 The OpenSSL Project.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  *
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in
14  *    the documentation and/or other materials provided with the
15  *    distribution.
16  *
17  * 3. All advertising materials mentioning features or use of this
18  *    software must display the following acknowledgment:
19  *    "This product includes software developed by the OpenSSL Project
20  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21  *
22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23  *    endorse or promote products derived from this software without
24  *    prior written permission. For written permission, please contact
25  *    licensing@OpenSSL.org.
26  *
27  * 5. Products derived from this software may not be called "OpenSSL"
28  *    nor may "OpenSSL" appear in their names without prior written
29  *    permission of the OpenSSL Project.
30  *
31  * 6. Redistributions of any form whatsoever must retain the following
32  *    acknowledgment:
33  *    "This product includes software developed by the OpenSSL Project
34  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35  *
36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47  * OF THE POSSIBILITY OF SUCH DAMAGE.
48  * ====================================================================
49  *
50  * This product includes cryptographic software written by Eric Young
51  * (eay@cryptsoft.com).  This product includes software written by Tim
52  * Hudson (tjh@cryptsoft.com).
53  *
54  */
55 
56 #include "eng_int.h"
57 
58 /* If this symbol is defined then ENGINE_get_default_STORE(), the function that is
59  * used by STORE to hook in implementation code and cache defaults (etc), will
60  * display brief debugging summaries to stderr with the 'nid'. */
61 /* #define ENGINE_STORE_DEBUG */
62 
63 static ENGINE_TABLE *store_table = NULL;
64 static const int dummy_nid = 1;
65 
66 void
67 ENGINE_unregister_STORE(ENGINE *e)
68 {
69 	engine_table_unregister(&store_table, e);
70 }
71 
72 static void
73 engine_unregister_all_STORE(void)
74 {
75 	engine_table_cleanup(&store_table);
76 }
77 
78 int
79 ENGINE_register_STORE(ENGINE *e)
80 {
81 	if (e->store_meth)
82 		return engine_table_register(&store_table,
83 		    engine_unregister_all_STORE, e, &dummy_nid, 1, 0);
84 	return 1;
85 }
86 
87 void
88 ENGINE_register_all_STORE(void)
89 {
90 	ENGINE *e;
91 
92 	for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
93 		ENGINE_register_STORE(e);
94 }
95 
96 /* Obtains an STORE implementation from an ENGINE functional reference */
97 const STORE_METHOD *
98 ENGINE_get_STORE(const ENGINE *e)
99 {
100 	return e->store_meth;
101 }
102 
103 /* Sets an STORE implementation in an ENGINE structure */
104 int
105 ENGINE_set_STORE(ENGINE *e, const STORE_METHOD *store_meth)
106 {
107 	e->store_meth = store_meth;
108 	return 1;
109 }
110