text: /*
   * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License").
   * You may not use this file except in compliance with the License.
   * A copy of the License is located at
   *
   *  http://aws.amazon.com/apache2.0
   *
   * or in the "license" file accompanying this file. This file is distributed
   * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
   * express or implied. See the License for the specific language governing
   * permissions and limitations under the License.
   */
  
  #include <stdint.h>
  
  #include "tls/s2n_tls.h"
  #include "tls/s2n_tls_parameters.h"
  
  uint8_t s2n_highest_protocol_version = S2N_TLS12;
  uint8_t s2n_unknown_protocol_version = S2N_UNKNOWN_PROTOCOL_VERSION;
  
  /*
   * Convert max_fragment_length codes to length.
   * RFC 6066 says:
   *    enum{
   *        2^9(1), 2^10(2), 2^11(3), 2^12(4), (255)
   *    } MaxFragmentLength;
   * and we add 0 -> extension unused
   */
  uint16_t mfl_code_to_length[5] =
  {
      S2N_DEFAULT_FRAGMENT_LENGTH,     /* S2N_TLS_MAX_FRAG_LEN_EXT_NONE */
      512,                             /* S2N_TLS_MAX_FRAG_LEN_512  */
      1024,                            /* S2N_TLS_MAX_FRAG_LEN_1024 */
      2048,                            /* S2N_TLS_MAX_FRAG_LEN_2048 */
      4096,                            /* S2N_TLS_MAX_FRAG_LEN_4096 */
  };
  