61721239a7
Original PR: https://webrtc-review.googlesource.com/c/src/+/369780 Bug: webrtc:42225835 Change-Id: Iee5d183dfd51f8265d1354baaf05c060c01f860f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/431822 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#46662}
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/*
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* Copyright 2017 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_NET_HELPER_H_
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#define RTC_BASE_NET_HELPER_H_
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#include <optional>
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#include "absl/strings/string_view.h"
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#include "rtc_base/system/rtc_export.h"
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// This header contains helper functions and constants used by different types
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// of transports.
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namespace webrtc {
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enum ProtocolType {
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PROTO_UDP,
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PROTO_DTLS,
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PROTO_TCP,
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PROTO_SSLTCP, // Pseudo-TLS.
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PROTO_TLS,
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PROTO_LAST = PROTO_TLS
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};
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RTC_EXPORT extern const char UDP_PROTOCOL_NAME[];
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extern const char DTLS_PROTOCOL_NAME[];
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RTC_EXPORT extern const char TCP_PROTOCOL_NAME[];
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extern const char SSLTCP_PROTOCOL_NAME[];
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extern const char TLS_PROTOCOL_NAME[];
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constexpr int kTcpHeaderSize = 20;
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constexpr int kUdpHeaderSize = 8;
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// Get the transport layer overhead per packet based on the protocol.
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int GetProtocolOverhead(absl::string_view protocol);
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// Helpers to convert ProtocolType to and from a string.
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absl::string_view ProtoToString(ProtocolType proto);
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std::optional<ProtocolType> StringToProto(absl::string_view proto_name);
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} // namespace webrtc
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#endif // RTC_BASE_NET_HELPER_H_
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