xref: /aosp_15_r20/external/webrtc/rtc_base/net_helper.cc (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1*d9f75844SAndroid Build Coastguard Worker /*
2*d9f75844SAndroid Build Coastguard Worker  *  Copyright 2017 The WebRTC Project Authors. All rights reserved.
3*d9f75844SAndroid Build Coastguard Worker  *
4*d9f75844SAndroid Build Coastguard Worker  *  Use of this source code is governed by a BSD-style license
5*d9f75844SAndroid Build Coastguard Worker  *  that can be found in the LICENSE file in the root of the source
6*d9f75844SAndroid Build Coastguard Worker  *  tree. An additional intellectual property rights grant can be found
7*d9f75844SAndroid Build Coastguard Worker  *  in the file PATENTS.  All contributing project authors may
8*d9f75844SAndroid Build Coastguard Worker  *  be found in the AUTHORS file in the root of the source tree.
9*d9f75844SAndroid Build Coastguard Worker  */
10*d9f75844SAndroid Build Coastguard Worker 
11*d9f75844SAndroid Build Coastguard Worker #include "rtc_base/net_helper.h"
12*d9f75844SAndroid Build Coastguard Worker 
13*d9f75844SAndroid Build Coastguard Worker #include "absl/strings/string_view.h"
14*d9f75844SAndroid Build Coastguard Worker 
15*d9f75844SAndroid Build Coastguard Worker namespace cricket {
16*d9f75844SAndroid Build Coastguard Worker 
17*d9f75844SAndroid Build Coastguard Worker const char UDP_PROTOCOL_NAME[] = "udp";
18*d9f75844SAndroid Build Coastguard Worker const char TCP_PROTOCOL_NAME[] = "tcp";
19*d9f75844SAndroid Build Coastguard Worker const char SSLTCP_PROTOCOL_NAME[] = "ssltcp";
20*d9f75844SAndroid Build Coastguard Worker const char TLS_PROTOCOL_NAME[] = "tls";
21*d9f75844SAndroid Build Coastguard Worker 
GetProtocolOverhead(absl::string_view protocol)22*d9f75844SAndroid Build Coastguard Worker int GetProtocolOverhead(absl::string_view protocol) {
23*d9f75844SAndroid Build Coastguard Worker   if (protocol == TCP_PROTOCOL_NAME || protocol == SSLTCP_PROTOCOL_NAME) {
24*d9f75844SAndroid Build Coastguard Worker     return kTcpHeaderSize;
25*d9f75844SAndroid Build Coastguard Worker   } else if (protocol == UDP_PROTOCOL_NAME) {
26*d9f75844SAndroid Build Coastguard Worker     return kUdpHeaderSize;
27*d9f75844SAndroid Build Coastguard Worker   } else {
28*d9f75844SAndroid Build Coastguard Worker     // TODO(srte): We should crash on unexpected input and handle TLS correctly.
29*d9f75844SAndroid Build Coastguard Worker     return 8;
30*d9f75844SAndroid Build Coastguard Worker   }
31*d9f75844SAndroid Build Coastguard Worker }
32*d9f75844SAndroid Build Coastguard Worker 
33*d9f75844SAndroid Build Coastguard Worker }  // namespace cricket
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