net_helper.h 1023 B

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  1. /*
  2. * Copyright 2017 The WebRTC Project Authors. All rights reserved.
  3. *
  4. * Use of this source code is governed by a BSD-style license
  5. * that can be found in the LICENSE file in the root of the source
  6. * tree. An additional intellectual property rights grant can be found
  7. * in the file PATENTS. All contributing project authors may
  8. * be found in the AUTHORS file in the root of the source tree.
  9. */
  10. #ifndef RTC_BASE_NET_HELPER_H_
  11. #define RTC_BASE_NET_HELPER_H_
  12. #include <string>
  13. // This header contains helper functions and constants used by different types
  14. // of transports.
  15. namespace cricket {
  16. extern const char UDP_PROTOCOL_NAME[];
  17. extern const char TCP_PROTOCOL_NAME[];
  18. extern const char SSLTCP_PROTOCOL_NAME[];
  19. extern const char TLS_PROTOCOL_NAME[];
  20. constexpr int kTcpHeaderSize = 20;
  21. constexpr int kUdpHeaderSize = 8;
  22. // Get the transport layer overhead per packet based on the protocol.
  23. int GetProtocolOverhead(const std::string& protocol);
  24. } // namespace cricket
  25. #endif // RTC_BASE_NET_HELPER_H_