crypto/openssl/crypto/evp/evp_cnf.c

   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
  74 static 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
 115 void EVP_add_alg_module(void)
 116 {
 117     CONF_module_add("alg_section", alg_module_init, 0);
 118 }