1187 lines
27 KiB
C++
1187 lines
27 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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#include "NXDNKenwoodNetwork.h"
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#include "NXDNCRC.h"
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#include "Utils.h"
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#include "Log.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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#include <ctime>
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const unsigned char BIT_MASK_TABLE[] = { 0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U };
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#define WRITE_BIT(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
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#define READ_BIT(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
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const unsigned int BUFFER_LENGTH = 200U;
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CNXDNKenwoodNetwork::CNXDNKenwoodNetwork(const std::string& localAddress, unsigned short localPort, const std::string& gwyAddress, unsigned short gwyPort, bool debug) :
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m_rtpSocket(localAddress, localPort + 0U),
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m_rtcpSocket(localAddress, localPort + 1U),
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m_rtcpAddr(),
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m_rtpAddr(),
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m_rtcpAddrLen(0U),
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m_rtpAddrLen(0U),
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m_enabled(false),
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m_headerSeen(false),
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m_seen1(false),
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m_seen2(false),
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m_seen3(false),
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m_seen4(false),
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m_sacch(NULL),
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m_sessionId(1U),
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m_seqNo(0U),
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m_ssrc(0U),
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m_debug(debug),
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m_startSecs(0U),
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m_startUSecs(0U),
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m_rtcpTimer(1000U, 0U, 200U),
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m_hangTimer(1000U, 5U),
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m_hangType(0U),
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m_hangSrc(0U),
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m_hangDst(0U),
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m_random()
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{
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assert(localPort > 0U);
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assert(!gwyAddress.empty());
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assert(gwyPort > 0U);
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m_sacch = new unsigned char[10U];
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if (CUDPSocket::lookup(gwyAddress, gwyPort + 1U, m_rtcpAddr, m_rtcpAddrLen) != 0)
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m_rtcpAddrLen = 0U;
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if (CUDPSocket::lookup(gwyAddress, gwyPort + 0U, m_rtpAddr, m_rtpAddrLen) != 0)
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m_rtpAddrLen = 0U;
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std::random_device rd;
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std::mt19937 mt(rd());
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m_random = mt;
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}
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CNXDNKenwoodNetwork::~CNXDNKenwoodNetwork()
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{
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delete[] m_sacch;
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}
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bool CNXDNKenwoodNetwork::open()
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{
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if (m_rtcpAddrLen == 0U || m_rtpAddrLen == 0U) {
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LogError("Unable to resolve the address of the NXDN Gateway");
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return false;
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}
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LogMessage("Opening Kenwood connection");
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if (!m_rtcpSocket.open(m_rtcpAddr))
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return false;
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if (!m_rtpSocket.open(m_rtpAddr)) {
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m_rtcpSocket.close();
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return false;
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}
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std::uniform_int_distribution<unsigned int> dist(0x00000001, 0xfffffffe);
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m_ssrc = dist(m_random);
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return true;
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}
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bool CNXDNKenwoodNetwork::write(const unsigned char* data, NXDN_NETWORK_MESSAGE_TYPE type)
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{
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assert(data != NULL);
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switch (type) {
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case NNMT_VOICE_HEADER: // Voice header or trailer
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case NNMT_VOICE_TRAILER:
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return processIcomVoiceHeader(data);
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case NNMT_VOICE_BODY: // Voice data
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return processIcomVoiceData(data);
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case NNMT_DATA_HEADER: // Data header or trailer
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case NNMT_DATA_TRAILER:
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return processIcomDataHeader(data);
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case NNMT_DATA_BODY: // Data data
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return processIcomDataData(data);
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default:
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return false;
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}
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}
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bool CNXDNKenwoodNetwork::processIcomVoiceHeader(const unsigned char* inData)
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{
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assert(inData != NULL);
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unsigned char outData[30U];
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::memset(outData, 0x00U, 30U);
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// SACCH
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outData[0U] = inData[2U];
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outData[1U] = inData[1U];
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outData[2U] = inData[4U] & 0xC0U;
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outData[3U] = inData[3U];
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// FACCH 1+2
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outData[4U] = outData[14U] = inData[6U];
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outData[5U] = outData[15U] = inData[5U];
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outData[6U] = outData[16U] = inData[8U];
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outData[7U] = outData[17U] = inData[7U];
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outData[8U] = outData[18U] = inData[10U];
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outData[9U] = outData[19U] = inData[9U];
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outData[10U] = outData[20U] = inData[12U];
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outData[11U] = outData[21U] = inData[11U];
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unsigned short src = (inData[8U] << 8) + (inData[9U] << 0);
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unsigned short dst = (inData[10U] << 8) + (inData[11U] << 0);
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unsigned char type = (inData[7U] >> 5) & 0x07U;
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switch (inData[5U] & 0x3FU) {
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case 0x01U:
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m_hangTimer.stop();
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m_rtcpTimer.start();
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writeRTCPStart();
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return writeRTPVoiceHeader(outData);
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case 0x08U: {
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m_hangTimer.start();
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bool ret = writeRTPVoiceTrailer(outData);
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writeRTCPHang(type, src, dst);
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return ret;
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}
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default:
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return false;
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}
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}
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bool CNXDNKenwoodNetwork::processIcomVoiceData(const unsigned char* inData)
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{
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assert(inData != NULL);
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unsigned char outData[40U], temp[10U];
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::memset(outData, 0x00U, 40U);
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// SACCH
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outData[0U] = inData[2U];
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outData[1U] = inData[1U];
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outData[2U] = inData[4U] & 0xC0U;
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outData[3U] = inData[3U];
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// Audio 1
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::memset(temp, 0x00U, 10U);
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for (unsigned int i = 0U; i < 49U; i++) {
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unsigned int offset = (5U * 8U) + i;
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bool b = READ_BIT(inData, offset);
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WRITE_BIT(temp, i, b);
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}
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outData[4U] = temp[1U];
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outData[5U] = temp[0U];
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outData[6U] = temp[3U];
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outData[7U] = temp[2U];
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outData[8U] = temp[5U];
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outData[9U] = temp[4U];
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outData[10U] = temp[7U];
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outData[11U] = temp[6U];
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// Audio 2
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::memset(temp, 0x00U, 10U);
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for (unsigned int i = 0U; i < 49U; i++) {
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unsigned int offset = (5U * 8U) + 49U + i;
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bool b = READ_BIT(inData, offset);
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WRITE_BIT(temp, i, b);
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}
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outData[12U] = temp[1U];
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outData[13U] = temp[0U];
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outData[14U] = temp[3U];
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outData[15U] = temp[2U];
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outData[16U] = temp[5U];
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outData[17U] = temp[4U];
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outData[18U] = temp[7U];
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outData[19U] = temp[6U];
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// Audio 3
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::memset(temp, 0x00U, 10U);
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for (unsigned int i = 0U; i < 49U; i++) {
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unsigned int offset = (19U * 8U) + i;
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bool b = READ_BIT(inData, offset);
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WRITE_BIT(temp, i, b);
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}
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outData[20U] = temp[1U];
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outData[21U] = temp[0U];
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outData[22U] = temp[3U];
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outData[23U] = temp[2U];
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outData[24U] = temp[5U];
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outData[25U] = temp[4U];
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outData[26U] = temp[7U];
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outData[27U] = temp[6U];
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// Audio 4
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::memset(temp, 0x00U, 10U);
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for (unsigned int i = 0U; i < 49U; i++) {
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unsigned int offset = (19U * 8U) + 49U + i;
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bool b = READ_BIT(inData, offset);
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WRITE_BIT(temp, i, b);
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}
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outData[28U] = temp[1U];
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outData[29U] = temp[0U];
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outData[30U] = temp[3U];
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outData[31U] = temp[2U];
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outData[32U] = temp[5U];
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outData[33U] = temp[4U];
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outData[34U] = temp[7U];
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outData[35U] = temp[6U];
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return writeRTPVoiceData(outData);
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}
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bool CNXDNKenwoodNetwork::processIcomDataHeader(const unsigned char* inData)
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{
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assert(inData != NULL);
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unsigned char outData[30U];
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::memset(outData, 0x00U, 30U);
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// SACCH
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outData[0U] = inData[2U];
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outData[1U] = inData[1U];
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outData[2U] = inData[4U] & 0xC0U;
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outData[3U] = inData[3U];
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// FACCH 1+2
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outData[4U] = outData[14U] = inData[6U];
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outData[5U] = outData[15U] = inData[5U];
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outData[6U] = outData[16U] = inData[8U];
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outData[7U] = outData[17U] = inData[7U];
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outData[8U] = outData[18U] = inData[10U];
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outData[9U] = outData[19U] = inData[9U];
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outData[10U] = outData[20U] = inData[12U];
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outData[11U] = outData[21U] = inData[11U];
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unsigned short src = (inData[8U] << 8) + (inData[9U] << 0);
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unsigned short dst = (inData[10U] << 8) + (inData[11U] << 0);
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unsigned char type = (inData[7U] >> 5) & 0x07U;
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switch (inData[5U] & 0x3FU) {
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case 0x09U:
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m_hangTimer.stop();
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m_rtcpTimer.start();
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writeRTCPStart();
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return writeRTPDataHeader(outData);
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case 0x08U: {
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m_hangTimer.start();
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bool ret = writeRTPDataTrailer(outData);
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writeRTCPHang(type, src, dst);
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return ret;
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}
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default:
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return false;
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}
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}
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bool CNXDNKenwoodNetwork::processIcomDataData(const unsigned char* inData)
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{
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assert(inData != NULL);
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unsigned char outData[40U];
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::memset(outData, 0x00U, 40U);
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outData[0U] = inData[2U];
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outData[1U] = inData[1U];
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outData[2U] = inData[4U];
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outData[3U] = inData[3U];
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outData[4U] = inData[6U];
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outData[5U] = inData[5U];
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outData[6U] = inData[8U];
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outData[7U] = inData[7U];
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outData[8U] = inData[10U];
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outData[9U] = inData[9U];
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outData[10U] = inData[12U];
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outData[11U] = inData[11U];
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outData[12U] = inData[14U];
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outData[13U] = inData[13U];
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outData[14U] = inData[16U];
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outData[15U] = inData[15U];
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outData[16U] = inData[18U];
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outData[17U] = inData[17U];
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outData[18U] = inData[20U];
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outData[19U] = inData[19U];
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outData[20U] = inData[22U];
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outData[21U] = inData[21U];
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return writeRTPDataData(outData);
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}
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bool CNXDNKenwoodNetwork::writeRTPVoiceHeader(const unsigned char* data)
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{
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assert(data != NULL);
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unsigned char buffer[50U];
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::memset(buffer, 0x00U, 50U);
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buffer[0U] = 0x80U;
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buffer[1U] = 0x66U;
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m_seqNo++;
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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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unsigned long timeStamp = getTimeStamp();
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buffer[4U] = (timeStamp >> 24) & 0xFFU;
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buffer[5U] = (timeStamp >> 16) & 0xFFU;
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buffer[6U] = (timeStamp >> 8) & 0xFFU;
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buffer[7U] = (timeStamp >> 0) & 0xFFU;
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buffer[8U] = (m_ssrc >> 24) & 0xFFU;
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buffer[9U] = (m_ssrc >> 16) & 0xFFU;
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buffer[10U] = (m_ssrc >> 8) & 0xFFU;
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buffer[11U] = (m_ssrc >> 0) & 0xFFU;
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m_sessionId++;
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buffer[12U] = m_sessionId;
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buffer[13U] = 0x00U;
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buffer[14U] = 0x00U;
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buffer[15U] = 0x00U;
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buffer[16U] = 0x03U;
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buffer[17U] = 0x03U;
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buffer[18U] = 0x04U;
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buffer[19U] = 0x04U;
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buffer[20U] = 0x0AU;
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buffer[21U] = 0x05U;
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buffer[22U] = 0x0AU;
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::memcpy(buffer + 23U, data, 24U);
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 47U);
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return m_rtpSocket.write(buffer, 47U, m_rtpAddr, m_rtpAddrLen);
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}
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bool CNXDNKenwoodNetwork::writeRTPVoiceTrailer(const unsigned char* data)
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{
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assert(data != NULL);
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unsigned char buffer[50U];
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::memset(buffer, 0x00U, 50U);
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buffer[0U] = 0x80U;
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buffer[1U] = 0x66U;
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m_seqNo++;
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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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unsigned long timeStamp = getTimeStamp();
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buffer[4U] = (timeStamp >> 24) & 0xFFU;
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buffer[5U] = (timeStamp >> 16) & 0xFFU;
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buffer[6U] = (timeStamp >> 8) & 0xFFU;
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buffer[7U] = (timeStamp >> 0) & 0xFFU;
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buffer[8U] = (m_ssrc >> 24) & 0xFFU;
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buffer[9U] = (m_ssrc >> 16) & 0xFFU;
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buffer[10U] = (m_ssrc >> 8) & 0xFFU;
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buffer[11U] = (m_ssrc >> 0) & 0xFFU;
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buffer[12U] = m_sessionId;
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buffer[13U] = 0x00U;
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buffer[14U] = 0x00U;
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buffer[15U] = 0x00U;
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buffer[16U] = 0x03U;
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buffer[17U] = 0x03U;
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buffer[18U] = 0x04U;
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buffer[19U] = 0x04U;
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buffer[20U] = 0x0AU;
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buffer[21U] = 0x05U;
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buffer[22U] = 0x0AU;
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::memcpy(buffer + 23U, data, 24U);
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 47U);
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return m_rtpSocket.write(buffer, 47U, m_rtpAddr, m_rtpAddrLen);
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}
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bool CNXDNKenwoodNetwork::writeRTPVoiceData(const unsigned char* data)
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{
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assert(data != NULL);
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unsigned char buffer[60U];
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::memset(buffer, 0x00U, 60U);
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buffer[0U] = 0x80U;
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buffer[1U] = 0x66U;
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m_seqNo++;
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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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unsigned long timeStamp = getTimeStamp();
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buffer[4U] = (timeStamp >> 24) & 0xFFU;
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buffer[5U] = (timeStamp >> 16) & 0xFFU;
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buffer[6U] = (timeStamp >> 8) & 0xFFU;
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buffer[7U] = (timeStamp >> 0) & 0xFFU;
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buffer[8U] = (m_ssrc >> 24) & 0xFFU;
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buffer[9U] = (m_ssrc >> 16) & 0xFFU;
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buffer[10U] = (m_ssrc >> 8) & 0xFFU;
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buffer[11U] = (m_ssrc >> 0) & 0xFFU;
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buffer[12U] = m_sessionId;
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buffer[13U] = 0x00U;
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buffer[14U] = 0x00U;
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buffer[15U] = 0x00U;
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buffer[16U] = 0x03U;
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buffer[17U] = 0x02U;
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buffer[18U] = 0x04U;
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buffer[19U] = 0x07U;
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buffer[20U] = 0x10U;
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buffer[21U] = 0x08U;
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buffer[22U] = 0x10U;
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::memcpy(buffer + 23U, data, 36U);
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 59U);
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return m_rtpSocket.write(buffer, 59U, m_rtpAddr, m_rtpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTPDataHeader(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char buffer[50U];
|
|
::memset(buffer, 0x00U, 50U);
|
|
|
|
buffer[0U] = 0x80U;
|
|
buffer[1U] = 0x66U;
|
|
|
|
m_seqNo++;
|
|
buffer[2U] = (m_seqNo >> 8) & 0xFFU;
|
|
buffer[3U] = (m_seqNo >> 0) & 0xFFU;
|
|
|
|
unsigned long timeStamp = getTimeStamp();
|
|
buffer[4U] = (timeStamp >> 24) & 0xFFU;
|
|
buffer[5U] = (timeStamp >> 16) & 0xFFU;
|
|
buffer[6U] = (timeStamp >> 8) & 0xFFU;
|
|
buffer[7U] = (timeStamp >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[9U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[10U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[11U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
m_sessionId++;
|
|
buffer[12U] = m_sessionId;
|
|
|
|
buffer[13U] = 0x00U;
|
|
buffer[14U] = 0x00U;
|
|
buffer[15U] = 0x00U;
|
|
buffer[16U] = 0x01U;
|
|
buffer[17U] = 0x01U;
|
|
|
|
::memcpy(buffer + 18U, data, 24U);
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U);
|
|
|
|
return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTPDataTrailer(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char buffer[50U];
|
|
::memset(buffer, 0x00U, 50U);
|
|
|
|
buffer[0U] = 0x80U;
|
|
buffer[1U] = 0x66U;
|
|
|
|
m_seqNo++;
|
|
buffer[2U] = (m_seqNo >> 8) & 0xFFU;
|
|
buffer[3U] = (m_seqNo >> 0) & 0xFFU;
|
|
|
|
unsigned long timeStamp = getTimeStamp();
|
|
buffer[4U] = (timeStamp >> 24) & 0xFFU;
|
|
buffer[5U] = (timeStamp >> 16) & 0xFFU;
|
|
buffer[6U] = (timeStamp >> 8) & 0xFFU;
|
|
buffer[7U] = (timeStamp >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[9U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[10U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[11U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
m_sessionId++;
|
|
buffer[12U] = m_sessionId;
|
|
|
|
buffer[13U] = 0x00U;
|
|
buffer[14U] = 0x00U;
|
|
buffer[15U] = 0x00U;
|
|
buffer[16U] = 0x01U;
|
|
buffer[17U] = 0x06U;
|
|
|
|
::memcpy(buffer + 18U, data, 24U);
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U);
|
|
|
|
return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTPDataData(const unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char buffer[50U];
|
|
::memset(buffer, 0x00U, 50U);
|
|
|
|
buffer[0U] = 0x80U;
|
|
buffer[1U] = 0x66U;
|
|
|
|
m_seqNo++;
|
|
buffer[2U] = (m_seqNo >> 8) & 0xFFU;
|
|
buffer[3U] = (m_seqNo >> 0) & 0xFFU;
|
|
|
|
unsigned long timeStamp = getTimeStamp();
|
|
buffer[4U] = (timeStamp >> 24) & 0xFFU;
|
|
buffer[5U] = (timeStamp >> 16) & 0xFFU;
|
|
buffer[6U] = (timeStamp >> 8) & 0xFFU;
|
|
buffer[7U] = (timeStamp >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[9U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[10U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[11U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
m_sessionId++;
|
|
buffer[12U] = m_sessionId;
|
|
|
|
buffer[13U] = 0x00U;
|
|
buffer[14U] = 0x00U;
|
|
buffer[15U] = 0x00U;
|
|
buffer[16U] = 0x01U;
|
|
buffer[17U] = 0x01U;
|
|
|
|
::memcpy(buffer + 18U, data, 24U);
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTP Data Sent", buffer, 42U);
|
|
|
|
return m_rtpSocket.write(buffer, 42U, m_rtpAddr, m_rtpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTCPStart()
|
|
{
|
|
#if defined(_WIN32) || defined(_WIN64)
|
|
time_t now;
|
|
::time(&now);
|
|
|
|
m_startSecs = uint32_t(now);
|
|
|
|
SYSTEMTIME st;
|
|
::GetSystemTime(&st);
|
|
|
|
m_startUSecs = st.wMilliseconds * 1000U;
|
|
#else
|
|
struct timeval tod;
|
|
::gettimeofday(&tod, NULL);
|
|
|
|
m_startSecs = tod.tv_sec;
|
|
m_startUSecs = tod.tv_usec;
|
|
#endif
|
|
|
|
unsigned char buffer[30U];
|
|
::memset(buffer, 0x00U, 30U);
|
|
|
|
buffer[0U] = 0x8AU;
|
|
buffer[1U] = 0xCCU;
|
|
buffer[2U] = 0x00U;
|
|
buffer[3U] = 0x06U;
|
|
|
|
buffer[4U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[5U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[6U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[7U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = 'K';
|
|
buffer[9U] = 'W';
|
|
buffer[10U] = 'N';
|
|
buffer[11U] = 'E';
|
|
|
|
buffer[12U] = (m_startSecs >> 24) & 0xFFU;
|
|
buffer[13U] = (m_startSecs >> 16) & 0xFFU;
|
|
buffer[14U] = (m_startSecs >> 8) & 0xFFU;
|
|
buffer[15U] = (m_startSecs >> 0) & 0xFFU;
|
|
|
|
buffer[16U] = (m_startUSecs >> 24) & 0xFFU;
|
|
buffer[17U] = (m_startUSecs >> 16) & 0xFFU;
|
|
buffer[18U] = (m_startUSecs >> 8) & 0xFFU;
|
|
buffer[19U] = (m_startUSecs >> 0) & 0xFFU;
|
|
|
|
buffer[22U] = 0x02U;
|
|
|
|
buffer[24U] = 0x01U;
|
|
|
|
buffer[27U] = 0x0AU;
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 28U);
|
|
|
|
return m_rtcpSocket.write(buffer, 28U, m_rtcpAddr, m_rtcpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTCPPing()
|
|
{
|
|
unsigned char buffer[30U];
|
|
::memset(buffer, 0x00U, 30U);
|
|
|
|
buffer[0U] = 0x8AU;
|
|
buffer[1U] = 0xCCU;
|
|
buffer[2U] = 0x00U;
|
|
buffer[3U] = 0x06U;
|
|
|
|
buffer[4U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[5U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[6U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[7U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = 'K';
|
|
buffer[9U] = 'W';
|
|
buffer[10U] = 'N';
|
|
buffer[11U] = 'E';
|
|
|
|
buffer[12U] = (m_startSecs >> 24) & 0xFFU;
|
|
buffer[13U] = (m_startSecs >> 16) & 0xFFU;
|
|
buffer[14U] = (m_startSecs >> 8) & 0xFFU;
|
|
buffer[15U] = (m_startSecs >> 0) & 0xFFU;
|
|
|
|
buffer[16U] = (m_startUSecs >> 24) & 0xFFU;
|
|
buffer[17U] = (m_startUSecs >> 16) & 0xFFU;
|
|
buffer[18U] = (m_startUSecs >> 8) & 0xFFU;
|
|
buffer[19U] = (m_startUSecs >> 0) & 0xFFU;
|
|
|
|
buffer[22U] = 0x02U;
|
|
|
|
buffer[24U] = 0x01U;
|
|
|
|
buffer[27U] = 0x7BU;
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 28U);
|
|
|
|
return m_rtcpSocket.write(buffer, 28U, m_rtcpAddr, m_rtcpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTCPHang(unsigned char type, unsigned short src, unsigned short dst)
|
|
{
|
|
m_hangType = type;
|
|
m_hangSrc = src;
|
|
m_hangDst = dst;
|
|
|
|
return writeRTCPHang();
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::writeRTCPHang()
|
|
{
|
|
unsigned char buffer[30U];
|
|
::memset(buffer, 0x00U, 30U);
|
|
|
|
buffer[0U] = 0x8BU;
|
|
buffer[1U] = 0xCCU;
|
|
buffer[2U] = 0x00U;
|
|
buffer[3U] = 0x04U;
|
|
|
|
buffer[4U] = (m_ssrc >> 24) & 0xFFU;
|
|
buffer[5U] = (m_ssrc >> 16) & 0xFFU;
|
|
buffer[6U] = (m_ssrc >> 8) & 0xFFU;
|
|
buffer[7U] = (m_ssrc >> 0) & 0xFFU;
|
|
|
|
buffer[8U] = 'K';
|
|
buffer[9U] = 'W';
|
|
buffer[10U] = 'N';
|
|
buffer[11U] = 'E';
|
|
|
|
buffer[12U] = (m_hangSrc >> 8) & 0xFFU;
|
|
buffer[13U] = (m_hangSrc >> 0) & 0xFFU;
|
|
|
|
buffer[14U] = (m_hangDst >> 8) & 0xFFU;
|
|
buffer[15U] = (m_hangDst >> 0) & 0xFFU;
|
|
|
|
buffer[16U] = m_hangType;
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 20U);
|
|
|
|
return m_rtcpSocket.write(buffer, 20U, m_rtcpAddr, m_rtcpAddrLen);
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::read(unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char dummy[BUFFER_LENGTH];
|
|
readRTCP(dummy);
|
|
|
|
unsigned int len = readRTP(data);
|
|
switch (len) {
|
|
case 0U: // Nothing received
|
|
return false;
|
|
case 35U: // Voice header or trailer
|
|
return processKenwoodVoiceHeader(data);
|
|
case 47U: // Voice data
|
|
if (m_headerSeen)
|
|
return processKenwoodVoiceData(data);
|
|
else
|
|
return processKenwoodVoiceLateEntry(data);
|
|
case 31U: // Data
|
|
return processKenwoodData(data);
|
|
default:
|
|
CUtils::dump(5U, "Unknown data received from the Kenwood network", data, len);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
unsigned int CNXDNKenwoodNetwork::readRTP(unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char buffer[BUFFER_LENGTH];
|
|
|
|
sockaddr_storage address;
|
|
unsigned int addrLen;
|
|
int length = m_rtpSocket.read(buffer, BUFFER_LENGTH, address, addrLen);
|
|
if (length <= 0)
|
|
return 0U;
|
|
|
|
if (!CUDPSocket::match(m_rtpAddr, address, IMT_ADDRESS_ONLY)) {
|
|
LogMessage("NXDN, RTP packet received from an invalid source");
|
|
return 0U;
|
|
}
|
|
|
|
if (!m_enabled)
|
|
return 0U;
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTP Data Received", buffer, length);
|
|
|
|
::memcpy(data, buffer + 12U, length - 12U);
|
|
|
|
return length - 12U;
|
|
}
|
|
|
|
unsigned int CNXDNKenwoodNetwork::readRTCP(unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
unsigned char buffer[BUFFER_LENGTH];
|
|
|
|
sockaddr_storage address;
|
|
unsigned int addrlen;
|
|
int length = m_rtcpSocket.read(buffer, BUFFER_LENGTH, address, addrlen);
|
|
if (length <= 0)
|
|
return 0U;
|
|
|
|
if (!CUDPSocket::match(m_rtpAddr, address, IMT_ADDRESS_ONLY)) {
|
|
LogMessage("NXDN, RTCP packet received from an invalid source");
|
|
return 0U;
|
|
}
|
|
|
|
if (!m_enabled)
|
|
return 0U;
|
|
|
|
if (m_debug)
|
|
CUtils::dump(1U, "Kenwood Network RTCP Data Received", buffer, length);
|
|
|
|
if (::memcmp(buffer + 8U, "KWNE", 4U) != 0) {
|
|
LogError("Missing RTCP KWNE signature");
|
|
return 0U;
|
|
}
|
|
|
|
::memcpy(data, buffer + 12U, length - 12U);
|
|
|
|
return length - 12U;
|
|
}
|
|
|
|
void CNXDNKenwoodNetwork::reset()
|
|
{
|
|
m_rtcpTimer.stop();
|
|
m_hangTimer.stop();
|
|
|
|
m_headerSeen = false;
|
|
m_seen1 = false;
|
|
m_seen2 = false;
|
|
m_seen3 = false;
|
|
m_seen4 = false;
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::isConnected() const
|
|
{
|
|
return ((m_rtcpAddrLen != 0U) && (m_rtpAddrLen != 0U));
|
|
}
|
|
|
|
void CNXDNKenwoodNetwork::close()
|
|
{
|
|
m_rtcpSocket.close();
|
|
m_rtpSocket.close();
|
|
|
|
LogMessage("Closing Kenwood connection");
|
|
}
|
|
|
|
void CNXDNKenwoodNetwork::clock(unsigned int ms)
|
|
{
|
|
m_rtcpTimer.clock(ms);
|
|
if (m_rtcpTimer.isRunning() && m_rtcpTimer.hasExpired()) {
|
|
if (m_hangTimer.isRunning())
|
|
writeRTCPHang();
|
|
else
|
|
writeRTCPPing();
|
|
m_rtcpTimer.start();
|
|
}
|
|
|
|
m_hangTimer.clock(ms);
|
|
if (m_hangTimer.isRunning() && m_hangTimer.hasExpired()) {
|
|
m_rtcpTimer.stop();
|
|
m_hangTimer.stop();
|
|
}
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::processKenwoodVoiceHeader(unsigned char* inData)
|
|
{
|
|
assert(inData != NULL);
|
|
|
|
unsigned char outData[50U], temp[20U];
|
|
::memset(outData, 0x00U, 50U);
|
|
|
|
// LICH
|
|
outData[0U] = 0x83U;
|
|
|
|
// SACCH
|
|
::memset(temp, 0x00U, 20U);
|
|
temp[0U] = inData[12U];
|
|
temp[1U] = inData[11U];
|
|
temp[2U] = inData[14U];
|
|
temp[3U] = inData[13U];
|
|
CNXDNCRC::encodeCRC6(temp, 26U);
|
|
::memcpy(outData + 1U, temp, 4U);
|
|
|
|
// FACCH 1+2
|
|
::memset(temp, 0x00U, 20U);
|
|
temp[0U] = inData[16U];
|
|
temp[1U] = inData[15U];
|
|
temp[2U] = inData[18U];
|
|
temp[3U] = inData[17U];
|
|
temp[4U] = inData[20U];
|
|
temp[5U] = inData[19U];
|
|
temp[6U] = inData[22U];
|
|
temp[7U] = inData[21U];
|
|
temp[8U] = inData[24U];
|
|
temp[9U] = inData[23U];
|
|
CNXDNCRC::encodeCRC12(temp, 80U);
|
|
::memcpy(outData + 5U, temp, 12U);
|
|
::memcpy(outData + 19U, temp, 12U);
|
|
|
|
switch (outData[5U] & 0x3FU) {
|
|
case 0x01U:
|
|
::memcpy(inData, outData, 33U);
|
|
m_headerSeen = true;
|
|
m_seen1 = false;
|
|
m_seen2 = false;
|
|
m_seen3 = false;
|
|
m_seen4 = false;
|
|
return true;
|
|
case 0x08U:
|
|
::memcpy(inData, outData, 33U);
|
|
m_headerSeen = false;
|
|
m_seen1 = false;
|
|
m_seen2 = false;
|
|
m_seen3 = false;
|
|
m_seen4 = false;
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::processKenwoodVoiceData(unsigned char* inData)
|
|
{
|
|
assert(inData != NULL);
|
|
|
|
unsigned char outData[50U], temp[20U];
|
|
::memset(outData, 0x00U, 50U);
|
|
|
|
// LICH
|
|
outData[0U] = 0xAEU;
|
|
|
|
// SACCH
|
|
::memset(temp, 0x00U, 20U);
|
|
temp[0U] = inData[12U];
|
|
temp[1U] = inData[11U];
|
|
temp[2U] = inData[14U];
|
|
temp[3U] = inData[13U];
|
|
CNXDNCRC::encodeCRC6(temp, 26U);
|
|
::memcpy(outData + 1U, temp, 4U);
|
|
|
|
// AMBE 1+2
|
|
unsigned int n = 5U * 8U;
|
|
|
|
temp[0U] = inData[16U];
|
|
temp[1U] = inData[15U];
|
|
temp[2U] = inData[18U];
|
|
temp[3U] = inData[17U];
|
|
temp[4U] = inData[20U];
|
|
temp[5U] = inData[19U];
|
|
temp[6U] = inData[22U];
|
|
temp[7U] = inData[21U];
|
|
|
|
for (unsigned int i = 0U; i < 49U; i++, n++) {
|
|
bool b = READ_BIT(temp, i);
|
|
WRITE_BIT(outData, n, b);
|
|
}
|
|
|
|
temp[0U] = inData[24U];
|
|
temp[1U] = inData[23U];
|
|
temp[2U] = inData[26U];
|
|
temp[3U] = inData[25U];
|
|
temp[4U] = inData[28U];
|
|
temp[5U] = inData[27U];
|
|
temp[6U] = inData[30U];
|
|
temp[7U] = inData[29U];
|
|
|
|
for (unsigned int i = 0U; i < 49U; i++, n++) {
|
|
bool b = READ_BIT(temp, i);
|
|
WRITE_BIT(outData, n, b);
|
|
}
|
|
|
|
// AMBE 3+4
|
|
n = 19U * 8U;
|
|
|
|
temp[0U] = inData[32U];
|
|
temp[1U] = inData[31U];
|
|
temp[2U] = inData[34U];
|
|
temp[3U] = inData[33U];
|
|
temp[4U] = inData[36U];
|
|
temp[5U] = inData[35U];
|
|
temp[6U] = inData[38U];
|
|
temp[7U] = inData[37U];
|
|
|
|
for (unsigned int i = 0U; i < 49U; i++, n++) {
|
|
bool b = READ_BIT(temp, i);
|
|
WRITE_BIT(outData, n, b);
|
|
}
|
|
|
|
temp[0U] = inData[40U];
|
|
temp[1U] = inData[39U];
|
|
temp[2U] = inData[42U];
|
|
temp[3U] = inData[41U];
|
|
temp[4U] = inData[44U];
|
|
temp[5U] = inData[43U];
|
|
temp[6U] = inData[46U];
|
|
temp[7U] = inData[45U];
|
|
|
|
for (unsigned int i = 0U; i < 49U; i++, n++) {
|
|
bool b = READ_BIT(temp, i);
|
|
WRITE_BIT(outData, n, b);
|
|
}
|
|
|
|
::memcpy(inData, outData, 33U);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::processKenwoodData(unsigned char* inData)
|
|
{
|
|
if (inData[7U] != 0x09U && inData[7U] != 0x0BU && inData[7U] != 0x08U)
|
|
return false;
|
|
|
|
unsigned char outData[50U];
|
|
|
|
if (inData[7U] == 0x09U || inData[7U] == 0x08U) {
|
|
outData[0U] = 0x90U;
|
|
outData[1U] = inData[8U];
|
|
outData[2U] = inData[7U];
|
|
outData[3U] = inData[10U];
|
|
outData[4U] = inData[9U];
|
|
outData[5U] = inData[12U];
|
|
outData[6U] = inData[11U];
|
|
outData[7U] = inData[14U];
|
|
outData[8U] = inData[13U];
|
|
outData[9U] = inData[16U];
|
|
outData[10U] = inData[15U];
|
|
outData[11U] = inData[18U];
|
|
outData[12U] = inData[17U];
|
|
outData[13U] = inData[20U];
|
|
outData[14U] = inData[19U];
|
|
outData[15U] = inData[22U];
|
|
outData[16U] = inData[21U];
|
|
outData[17U] = inData[24U];
|
|
outData[18U] = inData[23U];
|
|
outData[19U] = inData[26U];
|
|
::memcpy(inData, outData, 20U);
|
|
return true;
|
|
} else {
|
|
outData[0U] = 0x90U;
|
|
outData[1U] = inData[8U];
|
|
outData[2U] = inData[7U];
|
|
outData[3U] = inData[10U];
|
|
outData[4U] = inData[9U];
|
|
outData[5U] = inData[12U];
|
|
outData[6U] = inData[11U];
|
|
outData[7U] = inData[14U];
|
|
outData[8U] = inData[13U];
|
|
outData[9U] = inData[16U];
|
|
outData[10U] = inData[15U];
|
|
outData[11U] = inData[18U];
|
|
outData[12U] = inData[17U];
|
|
outData[13U] = inData[20U];
|
|
outData[14U] = inData[19U];
|
|
outData[15U] = inData[22U];
|
|
outData[16U] = inData[21U];
|
|
outData[17U] = inData[24U];
|
|
outData[18U] = inData[23U];
|
|
outData[19U] = inData[26U];
|
|
outData[20U] = inData[25U];
|
|
outData[21U] = inData[28U];
|
|
outData[22U] = inData[27U];
|
|
outData[23U] = inData[29U];
|
|
::memcpy(inData, outData, 24U);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
unsigned long CNXDNKenwoodNetwork::getTimeStamp() const
|
|
{
|
|
unsigned long timeStamp = 0UL;
|
|
|
|
#if defined(_WIN32) || defined(_WIN64)
|
|
SYSTEMTIME st;
|
|
::GetSystemTime(&st);
|
|
|
|
unsigned int hh = st.wHour;
|
|
unsigned int mm = st.wMinute;
|
|
unsigned int ss = st.wSecond;
|
|
unsigned int ms = st.wMilliseconds;
|
|
|
|
timeStamp += hh * 3600U * 1000U * 80U;
|
|
timeStamp += mm * 60U * 1000U * 80U;
|
|
timeStamp += ss * 1000U * 80U;
|
|
timeStamp += ms * 80U;
|
|
#else
|
|
struct timeval tod;
|
|
::gettimeofday(&tod, NULL);
|
|
|
|
unsigned int ss = tod.tv_sec;
|
|
unsigned int ms = tod.tv_usec / 1000U;
|
|
|
|
timeStamp += ss * 1000U * 80U;
|
|
timeStamp += ms * 80U;
|
|
#endif
|
|
|
|
return timeStamp;
|
|
}
|
|
|
|
bool CNXDNKenwoodNetwork::processKenwoodVoiceLateEntry(unsigned char* inData)
|
|
{
|
|
assert(inData != NULL);
|
|
|
|
unsigned char sacch[4U];
|
|
sacch[0U] = inData[12U];
|
|
sacch[1U] = inData[11U];
|
|
sacch[2U] = inData[14U];
|
|
sacch[3U] = inData[13U];
|
|
|
|
switch (sacch[0U] & 0xC0U) {
|
|
case 0xC0U:
|
|
if (!m_seen1) {
|
|
unsigned int offset = 0U;
|
|
for (unsigned int i = 8U; i < 26U; i++, offset++) {
|
|
bool b = READ_BIT(sacch, i) != 0U;
|
|
WRITE_BIT(m_sacch, offset, b);
|
|
}
|
|
m_seen1 = true;
|
|
}
|
|
break;
|
|
case 0x80U:
|
|
if (!m_seen2) {
|
|
unsigned int offset = 18U;
|
|
for (unsigned int i = 8U; i < 26U; i++, offset++) {
|
|
bool b = READ_BIT(sacch, i) != 0U;
|
|
WRITE_BIT(m_sacch, offset, b);
|
|
}
|
|
m_seen2 = true;
|
|
}
|
|
break;
|
|
case 0x40U:
|
|
if (!m_seen3) {
|
|
unsigned int offset = 36U;
|
|
for (unsigned int i = 8U; i < 26U; i++, offset++) {
|
|
bool b = READ_BIT(sacch, i) != 0U;
|
|
WRITE_BIT(m_sacch, offset, b);
|
|
}
|
|
m_seen3 = true;
|
|
}
|
|
break;
|
|
case 0x00U:
|
|
if (!m_seen4) {
|
|
unsigned int offset = 54U;
|
|
for (unsigned int i = 8U; i < 26U; i++, offset++) {
|
|
bool b = READ_BIT(sacch, i) != 0U;
|
|
WRITE_BIT(m_sacch, offset, b);
|
|
}
|
|
m_seen4 = true;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!m_seen1 || !m_seen2 || !m_seen3 || !m_seen4)
|
|
return false;
|
|
|
|
// Create a dummy header
|
|
// Header SACCH
|
|
inData[11U] = 0x10U;
|
|
inData[12U] = 0x01U;
|
|
inData[13U] = 0x00U;
|
|
inData[14U] = 0x00U;
|
|
|
|
// Header FACCH
|
|
inData[15U] = m_sacch[1U];
|
|
inData[16U] = m_sacch[0U];
|
|
inData[17U] = m_sacch[3U];
|
|
inData[18U] = m_sacch[2U];
|
|
inData[19U] = m_sacch[5U];
|
|
inData[20U] = m_sacch[4U];
|
|
inData[21U] = m_sacch[7U];
|
|
inData[22U] = m_sacch[6U];
|
|
inData[23U] = 0x00U;
|
|
inData[24U] = m_sacch[8U];
|
|
|
|
return processKenwoodVoiceHeader(inData);
|
|
}
|
|
|
|
void CNXDNKenwoodNetwork::enable(bool enabled)
|
|
{
|
|
if (enabled && !m_enabled)
|
|
reset();
|
|
|
|
m_enabled = enabled;
|
|
}
|