/*

 * Copyright (C) 2019 Red Hat, Inc.

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * The GnuTLS is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public License

 * as published by the Free Software Foundation; either version 2.1 of

 * the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <https://www.gnu.org/licenses/>

 *

 */

#include "gnutls_int.h"

#include "algorithms.h"

#include "errors.h"

#include "x509/common.h"

#include "c-strcase.h"

#include "profiles.h"

typedef struct {

  const char *name;

  gnutls_certificate_verification_profiles_t profile;

  gnutls_sec_param_t sec_param;

} gnutls_profile_entry;

static const gnutls_profile_entry profiles[] = {

  { "Very weak", GNUTLS_PROFILE_VERY_WEAK, GNUTLS_SEC_PARAM_VERY_WEAK },

  { "Low", GNUTLS_PROFILE_LOW, GNUTLS_SEC_PARAM_LOW },

  { "Legacy", GNUTLS_PROFILE_LEGACY, GNUTLS_SEC_PARAM_LEGACY },

  { "Medium", GNUTLS_PROFILE_MEDIUM, GNUTLS_SEC_PARAM_MEDIUM },

  { "High", GNUTLS_PROFILE_HIGH, GNUTLS_SEC_PARAM_HIGH },

  { "Ultra", GNUTLS_PROFILE_ULTRA, GNUTLS_SEC_PARAM_ULTRA },

  { "Future", GNUTLS_PROFILE_FUTURE, GNUTLS_SEC_PARAM_FUTURE },

  { "SuiteB128", GNUTLS_PROFILE_SUITEB128, GNUTLS_SEC_PARAM_HIGH },

  { "SuiteB192", GNUTLS_PROFILE_SUITEB192, GNUTLS_SEC_PARAM_ULTRA },

  { NULL, 0, 0 }

};

gnutls_sec_param_t

_gnutls_profile_to_sec_level(gnutls_certificate_verification_profiles_t profile)

{

  const gnutls_profile_entry *p;

  for (p = profiles; p->name != NULL; p++) {

    if (profile == p->profile)

      return p->sec_param;

  }

  return GNUTLS_SEC_PARAM_UNKNOWN;

}

/**

 * gnutls_certificate_verification_profile_get_id:

 * @name: is a profile name

 *

 * Convert a string to a #gnutls_certificate_verification_profiles_t value.  The names are

 * compared in a case insensitive way.

 *

 * Returns: a #gnutls_certificate_verification_profiles_t id of the specified profile,

 *   or %GNUTLS_PROFILE_UNKNOWN on failure.

 **/

gnutls_certificate_verification_profiles_t

gnutls_certificate_verification_profile_get_id(const char *name)

{

  const gnutls_profile_entry *p;

  if (name == NULL)

    return GNUTLS_PROFILE_UNKNOWN;

  for (p = profiles; p->name != NULL; p++) {

    if (c_strcasecmp(p->name, name) == 0)

      return p->profile;

  }

  return GNUTLS_PROFILE_UNKNOWN;

}

/**

 * gnutls_certificate_verification_profile_get_name:

 * @id: is a profile ID

 *

 * Convert a #gnutls_certificate_verification_profiles_t value to a string.

 *

 * Returns: a string that contains the name of the specified profile or %NULL.

 **/

const char *gnutls_certificate_verification_profile_get_name(

  gnutls_certificate_verification_profiles_t id)

{

  const gnutls_profile_entry *p;

  for (p = profiles; p->name != NULL; p++) {

    if (p->profile == id)

      return p->name;

  }

  return NULL;

}