/*

 * Copyright 2012-2017 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#include <stdio.h>

#include <openssl/crypto.h>

#include "internal/cryptlib.h"

#include <openssl/conf.h>

#include <openssl/x509.h>

#include <openssl/x509v3.h>

/* Algorithm configuration module. */

static int alg_module_init(CONF_IMODULE *md, const CONF *cnf)

{

    int i;

    const char *oid_section;

    STACK_OF(CONF_VALUE) *sktmp;

    CONF_VALUE *oval;

    oid_section = CONF_imodule_get_value(md);

    if ((sktmp = NCONF_get_section(cnf, oid_section)) == NULL) {

        EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_ERROR_LOADING_SECTION);

        return 0;

    }

    for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {

        oval = sk_CONF_VALUE_value(sktmp, i);

        if (strcmp(oval->name, "fips_mode") == 0) {

            int m;

            if (!X509V3_get_value_bool(oval, &m)) {

                EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_INVALID_FIPS_MODE);

                return 0;

            }

            if (m > 0) {

                EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_FIPS_MODE_NOT_SUPPORTED);

                return 0;

            }

        } else {

            EVPerr(EVP_F_ALG_MODULE_INIT, EVP_R_UNKNOWN_OPTION);

            ERR_add_error_data(4, "name=", oval->name,

                               ", value=", oval->value);

        }

    }

    return 1;

}

void EVP_add_alg_module(void)

{

    CONF_module_add("alg_section", alg_module_init, 0);

}