/src/libressl/crypto/engine/tb_cipher.c

Source (jump to first uncovered line)
/* $OpenBSD: tb_cipher.c,v 1.8 2017/01/29 17:49:23 beck Exp $ */
/* ====================================================================
 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include <openssl/err.h>

#include "eng_int.h"

/* If this symbol is defined then ENGINE_get_cipher_engine(), the function that
 * is used by EVP to hook in cipher code and cache defaults (etc), will display
 * brief debugging summaries to stderr with the 'nid'. */
/* #define ENGINE_CIPHER_DEBUG */

static ENGINE_TABLE *cipher_table = NULL;

void
ENGINE_unregister_ciphers(ENGINE *e)
{
  engine_table_unregister(&cipher_table, e);
}

static void
engine_unregister_all_ciphers(void)
{
  engine_table_cleanup(&cipher_table);
}

int
ENGINE_register_ciphers(ENGINE *e)
{
  if (e->ciphers) {
    const int *nids;
    int num_nids = e->ciphers(e, NULL, &nids, 0);
    if (num_nids > 0)
      return engine_table_register(&cipher_table,
          engine_unregister_all_ciphers, e, nids,
          num_nids, 0);
  }
  return 1;
}

void
ENGINE_register_all_ciphers(void)
{
  ENGINE *e;

  for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
    ENGINE_register_ciphers(e);
}

int
ENGINE_set_default_ciphers(ENGINE *e)
{
  if (e->ciphers) {
    const int *nids;
    int num_nids = e->ciphers(e, NULL, &nids, 0);
    if (num_nids > 0)
      return engine_table_register(&cipher_table,
          engine_unregister_all_ciphers, e, nids,
          num_nids, 1);
  }
  return 1;
}

/* Exposed API function to get a functional reference from the implementation
 * table (ie. try to get a functional reference from the tabled structural
 * references) for a given cipher 'nid' */
ENGINE *
ENGINE_get_cipher_engine(int nid)
{
  return engine_table_select(&cipher_table, nid);
}

/* Obtains a cipher implementation from an ENGINE functional reference */
const EVP_CIPHER *
ENGINE_get_cipher(ENGINE *e, int nid)
{
  const EVP_CIPHER *ret;
  ENGINE_CIPHERS_PTR fn = ENGINE_get_ciphers(e);

  if (!fn || !fn(e, &ret, NULL, nid)) {
    ENGINEerror(ENGINE_R_UNIMPLEMENTED_CIPHER);
    return NULL;
  }
  return ret;
}

/* Gets the cipher callback from an ENGINE structure */
ENGINE_CIPHERS_PTR
ENGINE_get_ciphers(const ENGINE *e)
{
  return e->ciphers;
}

/* Sets the cipher callback in an ENGINE structure */
int
ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f)
{
  e->ciphers = f;
  return 1;
}

Line	Count	Source (jump to first uncovered line)
1		/* $OpenBSD: tb_cipher.c,v 1.8 2017/01/29 17:49:23 beck 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 <openssl/err.h>
57
58		#include "eng_int.h"
59
60		/* If this symbol is defined then ENGINE_get_cipher_engine(), the function that
61		* is used by EVP to hook in cipher code and cache defaults (etc), will display
62		* brief debugging summaries to stderr with the 'nid'. */
63		/* #define ENGINE_CIPHER_DEBUG */
64
65		static ENGINE_TABLE *cipher_table = NULL;
66
67		void
68		ENGINE_unregister_ciphers(ENGINE *e)
69	0	{
70	0	engine_table_unregister(&cipher_table, e);
71	0	}
72
73		static void
74		engine_unregister_all_ciphers(void)
75	0	{
76	0	engine_table_cleanup(&cipher_table);
77	0	}
78
79		int
80		ENGINE_register_ciphers(ENGINE *e)
81	0	{
82	0	if (e->ciphers) {
83	0	const int *nids;
84	0	int num_nids = e->ciphers(e, NULL, &nids, 0);
85	0	if (num_nids > 0)
86	0	return engine_table_register(&cipher_table,
87	0	engine_unregister_all_ciphers, e, nids,
88	0	num_nids, 0);
89	0	}
90	0	return 1;
91	0	}
92
93		void
94		ENGINE_register_all_ciphers(void)
95	0	{
96	0	ENGINE *e;
97
98	0	for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
99	0	ENGINE_register_ciphers(e);
100	0	}
101
102		int
103		ENGINE_set_default_ciphers(ENGINE *e)
104	0	{
105	0	if (e->ciphers) {
106	0	const int *nids;
107	0	int num_nids = e->ciphers(e, NULL, &nids, 0);
108	0	if (num_nids > 0)
109	0	return engine_table_register(&cipher_table,
110	0	engine_unregister_all_ciphers, e, nids,
111	0	num_nids, 1);
112	0	}
113	0	return 1;
114	0	}
115
116		/* Exposed API function to get a functional reference from the implementation
117		* table (ie. try to get a functional reference from the tabled structural
118		* references) for a given cipher 'nid' */
119		ENGINE *
120		ENGINE_get_cipher_engine(int nid)
121	0	{
122	0	return engine_table_select(&cipher_table, nid);
123	0	}
124
125		/* Obtains a cipher implementation from an ENGINE functional reference */
126		const EVP_CIPHER *
127		ENGINE_get_cipher(ENGINE *e, int nid)
128	0	{
129	0	const EVP_CIPHER *ret;
130	0	ENGINE_CIPHERS_PTR fn = ENGINE_get_ciphers(e);
131
132	0	if (!fn \|\| !fn(e, &ret, NULL, nid)) {
133	0	ENGINEerror(ENGINE_R_UNIMPLEMENTED_CIPHER);
134	0	return NULL;
135	0	}
136	0	return ret;
137	0	}
138
139		/* Gets the cipher callback from an ENGINE structure */
140		ENGINE_CIPHERS_PTR
141		ENGINE_get_ciphers(const ENGINE *e)
142	0	{
143	0	return e->ciphers;
144	0	}
145
146		/* Sets the cipher callback in an ENGINE structure */
147		int
148		ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f)
149	0	{
150	0	e->ciphers = f;
151	0	return 1;
152	0	}

Coverage Report

Created: 2022-08-24 06:31