683 lines
16 KiB
C++
683 lines
16 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 "KenwoodNetwork.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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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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CKenwoodNetwork::CKenwoodNetwork(unsigned int localPort, const std::string& rptAddress, unsigned int rptPort, bool debug) :
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m_rtcpSocket(localPort + 1U),
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m_rtpSocket(localPort + 0U),
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m_stopWatch(),
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m_address(),
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m_rtcpPort(rptPort + 1U),
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m_rtpPort(rptPort + 0U),
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m_seqNo(0U),
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m_timeStamp(0U),
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m_ssrc(0U),
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m_debug(debug),
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m_timer(1000U, 0U, 200U)
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{
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assert(localPort > 0U);
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assert(!rptAddress.empty());
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assert(rptPort > 0U);
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m_address = CUDPSocket::lookup(rptAddress);
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::srand((unsigned int)m_stopWatch.time());
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}
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CKenwoodNetwork::~CKenwoodNetwork()
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{
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}
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bool CKenwoodNetwork::open()
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{
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LogMessage("Opening Kenwood connection");
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if (m_address.s_addr == INADDR_NONE)
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return false;
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if (!m_rtcpSocket.open())
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return false;
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if (!m_rtpSocket.open()) {
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m_rtcpSocket.close();
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return false;
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}
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m_ssrc = ::rand();
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return true;
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}
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bool CKenwoodNetwork::write(const unsigned char* data, unsigned int length)
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{
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assert(data != NULL);
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switch (data[0U]) {
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case 0x81U: // Voice header or trailer
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case 0x83U:
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return processIcomVoiceHeader(data);
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case 0xACU: // Voice data
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case 0xAEU:
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return processIcomVoiceData(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 CKenwoodNetwork::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_timer.start();
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writeRTCPData(type, src, dst);
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return writeRTPVoiceHeader(outData);
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case 0x08U:
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m_timer.stop();
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writeRTCPData(type, src, dst);
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return writeRTPVoiceTrailer(outData);
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default:
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return false;
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}
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}
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bool CKenwoodNetwork::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 CKenwoodNetwork::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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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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m_seqNo++;
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m_timeStamp = (unsigned long)m_stopWatch.time();
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buffer[4U] = (m_timeStamp >> 24) & 0xFFU;
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buffer[5U] = (m_timeStamp >> 16) & 0xFFU;
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buffer[6U] = (m_timeStamp >> 8) & 0xFFU;
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buffer[7U] = (m_timeStamp >> 0) & 0xFFU;
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m_timeStamp += 640U;
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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[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_address, m_rtpPort);
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}
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bool CKenwoodNetwork::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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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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buffer[4U] = (m_timeStamp >> 24) & 0xFFU;
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buffer[5U] = (m_timeStamp >> 16) & 0xFFU;
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buffer[6U] = (m_timeStamp >> 8) & 0xFFU;
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buffer[7U] = (m_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[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_address, m_rtpPort);
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}
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bool CKenwoodNetwork::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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buffer[2U] = (m_seqNo >> 8) & 0xFFU;
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buffer[3U] = (m_seqNo >> 0) & 0xFFU;
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m_seqNo++;
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buffer[4U] = (m_timeStamp >> 24) & 0xFFU;
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buffer[5U] = (m_timeStamp >> 16) & 0xFFU;
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buffer[6U] = (m_timeStamp >> 8) & 0xFFU;
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buffer[7U] = (m_timeStamp >> 0) & 0xFFU;
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m_timeStamp += 640U;
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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[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_address, m_rtpPort);
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}
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bool CKenwoodNetwork::writeRTCPPing()
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{
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unsigned char buffer[30U];
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::memset(buffer, 0x00U, 30U);
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buffer[0U] = 0x8AU;
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buffer[1U] = 0xCCU;
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buffer[3U] = 0x06U;
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buffer[4U] = (m_ssrc >> 24) & 0xFFU;
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buffer[5U] = (m_ssrc >> 16) & 0xFFU;
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buffer[6U] = (m_ssrc >> 8) & 0xFFU;
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buffer[7U] = (m_ssrc >> 0) & 0xFFU;
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buffer[8U] = 'K';
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buffer[9U] = 'W';
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buffer[10U] = 'N';
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buffer[11U] = 'E';
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buffer[22U] = 0x02U;
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buffer[24U] = 0x01U;
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buffer[25U] = 0x01U;
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 28U);
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return m_rtcpSocket.write(buffer, 28U, m_address, m_rtcpPort);
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}
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bool CKenwoodNetwork::writeRTCPData(unsigned char type, unsigned short src, unsigned short dst)
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{
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unsigned char buffer[20U];
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::memset(buffer, 0x00U, 20U);
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buffer[0U] = 0x8BU;
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buffer[1U] = 0xCCU;
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buffer[3U] = 0x04U;
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buffer[4U] = (m_ssrc >> 24) & 0xFFU;
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buffer[5U] = (m_ssrc >> 16) & 0xFFU;
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buffer[6U] = (m_ssrc >> 8) & 0xFFU;
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buffer[7U] = (m_ssrc >> 0) & 0xFFU;
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buffer[8U] = 'K';
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buffer[9U] = 'W';
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buffer[10U] = 'N';
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buffer[11U] = 'E';
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buffer[12U] = (src >> 8) & 0xFFU;
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buffer[13U] = (src >> 0) & 0xFFU;
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buffer[14U] = (dst >> 8) & 0xFFU;
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buffer[15U] = (dst >> 0) & 0xFFU;
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buffer[16U] = type;
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTCP Data Sent", buffer, 20U);
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return m_rtcpSocket.write(buffer, 20U, m_address, m_rtcpPort);
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}
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bool CKenwoodNetwork::read(unsigned char* data)
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{
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assert(data != NULL);
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unsigned char dummy[BUFFER_LENGTH];
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readRTCP(dummy);
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unsigned int len = readRTP(data);
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switch (len) {
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case 0U: // Nothing received
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return false;
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case 35U: // Voice header or trailer
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return processKenwoodVoiceHeader(data);
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case 47U: // Voice data
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processKenwoodVoiceData(data);
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return true;
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case 31U: // Data
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processKenwoodData(data);
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return true;
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default:
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CUtils::dump(5U, "Unknown data received from the Kenwood network", data, len);
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return false;
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}
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}
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unsigned int CKenwoodNetwork::readRTP(unsigned char* data)
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{
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assert(data != NULL);
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unsigned char buffer[BUFFER_LENGTH];
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in_addr address;
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unsigned int port;
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int length = m_rtpSocket.read(buffer, BUFFER_LENGTH, address, port);
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if (length <= 0)
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return 0U;
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// Check if the data is for us
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if (m_address.s_addr != address.s_addr) {
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LogMessage("Kenwood RTP packet received from an invalid source, %08X != %08X", m_address.s_addr, address.s_addr);
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return 0U;
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}
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTP Data Received", buffer, length);
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::memcpy(data, buffer + 12U, length - 12U);
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return length - 12U;
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}
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unsigned int CKenwoodNetwork::readRTCP(unsigned char* data)
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{
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assert(data != NULL);
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unsigned char buffer[BUFFER_LENGTH];
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in_addr address;
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unsigned int port;
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int length = m_rtcpSocket.read(buffer, BUFFER_LENGTH, address, port);
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if (length <= 0)
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return 0U;
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// Check if the data is for us
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if (m_address.s_addr != address.s_addr) {
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LogMessage("Kenwood RTCP packet received from an invalid source, %08X != %08X", m_address.s_addr, address.s_addr);
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return 0U;
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}
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if (m_debug)
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CUtils::dump(1U, "Kenwood Network RTCP Data Received", buffer, length);
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if (::memcmp(buffer + 8U, "KWNE", 4U) != 0) {
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LogError("Missing RTCP KWNE signature");
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return 0U;
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}
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::memcpy(data, buffer + 12U, length - 12U);
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return length - 12U;
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}
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void CKenwoodNetwork::close()
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{
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m_rtcpSocket.close();
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m_rtpSocket.close();
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LogMessage("Closing Kenwood connection");
|
|
}
|
|
|
|
void CKenwoodNetwork::clock(unsigned int ms)
|
|
{
|
|
m_timer.clock(ms);
|
|
if (m_timer.isRunning() && m_timer.hasExpired()) {
|
|
writeRTCPPing();
|
|
m_timer.start();
|
|
}
|
|
}
|
|
|
|
bool CKenwoodNetwork::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);
|
|
return true;
|
|
case 0x08U:
|
|
::memcpy(inData, outData, 33U);
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void CKenwoodNetwork::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);
|
|
}
|
|
|
|
void CKenwoodNetwork::processKenwoodData(unsigned char* inData)
|
|
{
|
|
if (inData[7U] != 0x09U && inData[7U] != 0x0BU && inData[7U] != 0x08U)
|
|
return;
|
|
|
|
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];
|
|
::memcpy(inData, outData, 7U);
|
|
CUtils::dump(4U, "Outgoing Kenwood GPS Data Header/Trailer", inData, 7U);
|
|
} else {
|
|
CUtils::dump(4U, "Incoming Kenwood GPS Data", inData, 31U);
|
|
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);
|
|
CUtils::dump(4U, "Outgoing Kenwood GPS Data Body", inData, 24U);
|
|
}
|
|
}
|