dtls1.h 1.5 KB

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  1. /*
  2. * Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved.
  3. *
  4. * Licensed under the OpenSSL license (the "License"). You may not use
  5. * this file except in compliance with the License. You can obtain a copy
  6. * in the file LICENSE in the source distribution or at
  7. * https://www.openssl.org/source/license.html
  8. */
  9. #ifndef HEADER_DTLS1_H
  10. # define HEADER_DTLS1_H
  11. #ifdef __cplusplus
  12. extern "C" {
  13. #endif
  14. # define DTLS1_VERSION 0xFEFF
  15. # define DTLS1_2_VERSION 0xFEFD
  16. # define DTLS_MIN_VERSION DTLS1_VERSION
  17. # define DTLS_MAX_VERSION DTLS1_2_VERSION
  18. # define DTLS1_VERSION_MAJOR 0xFE
  19. # define DTLS1_BAD_VER 0x0100
  20. /* Special value for method supporting multiple versions */
  21. # define DTLS_ANY_VERSION 0x1FFFF
  22. /* lengths of messages */
  23. /*
  24. * Actually the max cookie length in DTLS is 255. But we can't change this now
  25. * due to compatibility concerns.
  26. */
  27. # define DTLS1_COOKIE_LENGTH 256
  28. # define DTLS1_RT_HEADER_LENGTH 13
  29. # define DTLS1_HM_HEADER_LENGTH 12
  30. # define DTLS1_HM_BAD_FRAGMENT -2
  31. # define DTLS1_HM_FRAGMENT_RETRY -3
  32. # define DTLS1_CCS_HEADER_LENGTH 1
  33. # define DTLS1_AL_HEADER_LENGTH 2
  34. /* Timeout multipliers */
  35. # define DTLS1_TMO_READ_COUNT 2
  36. # define DTLS1_TMO_WRITE_COUNT 2
  37. # define DTLS1_TMO_ALERT_COUNT 12
  38. #ifdef __cplusplus
  39. }
  40. #endif
  41. #endif