GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/engine/tb_dsa.c Lines: 1 14 7.1 %
Date: 2017-11-13 Branches: 0 6 0.0 %

Line Branch Exec Source
1
/* $OpenBSD: tb_dsa.c,v 1.7 2014/06/12 15:49:29 deraadt Exp $ */
2
/* ====================================================================
3
 * Copyright (c) 2000 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_DSA(), the function that is
59
 * used by DSA to hook in implementation code and cache defaults (etc), will
60
 * display brief debugging summaries to stderr with the 'nid'. */
61
/* #define ENGINE_DSA_DEBUG */
62
63
static ENGINE_TABLE *dsa_table = NULL;
64
static const int dummy_nid = 1;
65
66
void
67
ENGINE_unregister_DSA(ENGINE *e)
68
{
69
	engine_table_unregister(&dsa_table, e);
70
}
71
72
static void
73
engine_unregister_all_DSA(void)
74
{
75
	engine_table_cleanup(&dsa_table);
76
}
77
78
int
79
ENGINE_register_DSA(ENGINE *e)
80
{
81
	if (e->dsa_meth)
82
		return engine_table_register(&dsa_table,
83
		    engine_unregister_all_DSA, e, &dummy_nid, 1, 0);
84
	return 1;
85
}
86
87
void
88
ENGINE_register_all_DSA(void)
89
{
90
	ENGINE *e;
91
92
	for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
93
		ENGINE_register_DSA(e);
94
}
95
96
int
97
ENGINE_set_default_DSA(ENGINE *e)
98
{
99
	if (e->dsa_meth)
100
		return engine_table_register(&dsa_table,
101
		    engine_unregister_all_DSA, e, &dummy_nid, 1, 1);
102
	return 1;
103
}
104
105
/* Exposed API function to get a functional reference from the implementation
106
 * table (ie. try to get a functional reference from the tabled structural
107
 * references). */
108
ENGINE *
109
ENGINE_get_default_DSA(void)
110
{
111
92
	return engine_table_select(&dsa_table, dummy_nid);
112
}
113
114
/* Obtains an DSA implementation from an ENGINE functional reference */
115
const DSA_METHOD *
116
ENGINE_get_DSA(const ENGINE *e)
117
{
118
	return e->dsa_meth;
119
}
120
121
/* Sets an DSA implementation in an ENGINE structure */
122
int
123
ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth)
124
{
125
	e->dsa_meth = dsa_meth;
126
	return 1;
127
}