79b3eaa57a
Previous implementation uses SSRC as IPv4 address that is same behaviour of Kenwood's NXDN repeater. RFC 3350 RTP protocol recommends SSRC uses random number. So I use MT19937 random number generator instead of IP address. And if this is no problem, I will do two changes. - replace rand() in DMRNetwork.cpp and DStarNetwork.cpp to MT19937 - remove getLocalAddress() in UDPSocket.cpp
100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
/*
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* Copyright (C) 2009-2014,2016,2018,2020 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef NXDNKenwoodNetwork_H
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#define NXDNKenwoodNetwork_H
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#include "NXDNNetwork.h"
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#include "UDPSocket.h"
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#include "Timer.h"
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#include <cstdint>
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#include <string>
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#include <random>
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class CNXDNKenwoodNetwork : public INXDNNetwork {
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public:
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CNXDNKenwoodNetwork(const std::string& localAddress, unsigned int localPort, const std::string& gwyAddress, unsigned int gwyPort, bool debug);
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virtual ~CNXDNKenwoodNetwork();
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virtual bool open();
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virtual void enable(bool enabled);
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virtual bool write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type);
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virtual bool read(unsigned char* data);
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virtual void reset();
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virtual void close();
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virtual void clock(unsigned int ms);
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private:
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CUDPSocket m_rtpSocket;
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CUDPSocket m_rtcpSocket;
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in_addr m_address;
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unsigned int m_rtcpPort;
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unsigned int m_rtpPort;
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bool m_enabled;
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bool m_headerSeen;
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bool m_seen1;
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bool m_seen2;
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bool m_seen3;
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bool m_seen4;
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unsigned char* m_sacch;
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uint8_t m_sessionId;
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uint16_t m_seqNo;
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unsigned int m_ssrc;
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bool m_debug;
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uint32_t m_startSecs;
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uint32_t m_startUSecs;
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CTimer m_rtcpTimer;
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CTimer m_hangTimer;
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unsigned char m_hangType;
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unsigned short m_hangSrc;
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unsigned short m_hangDst;
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std::mt19937 m_random;
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bool processIcomVoiceHeader(const unsigned char* data);
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bool processIcomVoiceData(const unsigned char* data);
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bool processIcomDataHeader(const unsigned char* data);
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bool processIcomDataData(const unsigned char* data);
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bool processIcomDataTrailer(const unsigned char* data);
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bool processKenwoodVoiceHeader(unsigned char* data);
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bool processKenwoodVoiceData(unsigned char* data);
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bool processKenwoodVoiceLateEntry(unsigned char* data);
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bool processKenwoodData(unsigned char* data);
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bool writeRTPVoiceHeader(const unsigned char* data);
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bool writeRTPVoiceData(const unsigned char* data);
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bool writeRTPVoiceTrailer(const unsigned char* data);
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bool writeRTPDataHeader(const unsigned char* data);
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bool writeRTPDataData(const unsigned char* data);
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bool writeRTPDataTrailer(const unsigned char* data);
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bool writeRTCPStart();
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bool writeRTCPPing();
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bool writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst);
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bool writeRTCPHang();
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unsigned int readRTP(unsigned char* data);
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unsigned int readRTCP(unsigned char* data);
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unsigned long getTimeStamp() const;
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};
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#endif
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