evp_cnf.c revision 280304 
1/* evp_cnf.c */
2/*
3 * Written by Stephen Henson (steve@openssl.org) for the OpenSSL project
4 * 2007.
5 */
6/* ====================================================================
7 * Copyright (c) 2007 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include <ctype.h>
62#include <openssl/crypto.h>
63#include "cryptlib.h"
64#include <openssl/conf.h>
65#include <openssl/dso.h>
66#include <openssl/x509.h>
67#include <openssl/x509v3.h>
68#ifdef OPENSSL_FIPS
69# include <openssl/fips.h>
70#endif
71
72/* Algorithm configuration module. */
73
74static int alg_module_init(CONF_IMODULE *md, const CONF *cnf)
75{
76    int i;
77    const char *oid_section;
78    STACK_OF(CONF_VALUE) *sktmp;
79    CONF_VALUE *oval;
80    oid_section = CONF_imodule_get_value(md);
81    if (!(sktmp = NCONF_get_section(cnf, oid_section))) {
82        EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_ERROR_LOADING_SECTION);
83        return 0;
84    }
85    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
86        oval = sk_CONF_VALUE_value(sktmp, i);
87        if (!strcmp(oval->name, "fips_mode")) {
88            int m;
89            if (!X509V3_get_value_bool(oval, &m)) {
90                EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_INVALID_FIPS_MODE);
91                return 0;
92            }
93            if (m > 0) {
94#ifdef OPENSSL_FIPS
95                if (!FIPS_mode() && !FIPS_mode_set(1)) {
96                    EVPerr(EVP_F_ALG_MODULE_INIT,
97                           EVP_R_ERROR_SETTING_FIPS_MODE);
98                    return 0;
99                }
100#else
101                EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_FIPS_MODE_NOT_SUPPORTED);
102                return 0;
103#endif
104            }
105        } else {
106            EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_UNKNOWN_OPTION);
107            ERR_add_error_data(4, "name=", oval->name,
108                               ", value=", oval->value);
109        }
110
111    }
112    return 1;
113}
114
115void EVP_add_alg_module(void)
116{
117    CONF_module_add("alg_section", alg_module_init, 0);
118}
119