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1 /*
2  * libjingle
3  * Copyright 2013 Google Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  *  1. Redistributions of source code must retain the above copyright notice,
9  *     this list of conditions and the following disclaimer.
10  *  2. Redistributions in binary form must reproduce the above copyright notice,
11  *     this list of conditions and the following disclaimer in the documentation
12  *     and/or other materials provided with the distribution.
13  *  3. The name of the author may not be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef TALK_APP_WEBRTC_SCTPUTILS_H_
29 #define TALK_APP_WEBRTC_SCTPUTILS_H_
30 
31 #include <string>
32 
33 #include "talk/app/webrtc/datachannelinterface.h"
34 
35 namespace rtc {
36 class Buffer;
37 }  // namespace rtc
38 
39 namespace webrtc {
40 struct DataChannelInit;
41 
42 // Read the message type and return true if it's an OPEN message.
43 bool IsOpenMessage(const rtc::Buffer& payload);
44 
45 bool ParseDataChannelOpenMessage(const rtc::Buffer& payload,
46                                  std::string* label,
47                                  DataChannelInit* config);
48 
49 bool ParseDataChannelOpenAckMessage(const rtc::Buffer& payload);
50 
51 bool WriteDataChannelOpenMessage(const std::string& label,
52                                  const DataChannelInit& config,
53                                  rtc::Buffer* payload);
54 
55 void WriteDataChannelOpenAckMessage(rtc::Buffer* payload);
56 }  // namespace webrtc
57 
58 #endif  // TALK_APP_WEBRTC_SCTPUTILS_H_
59