crypto/evp/evp_cnf.c

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