1230 lines
30 KiB
C++
1230 lines
30 KiB
C++
/*
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* Copyright (C) 2015-2021 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; version 2 of the License.
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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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#include "YSFControl.h"
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#include "Utils.h"
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#include "Sync.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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// #define DUMP_YSF
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CYSFControl::CYSFControl(const std::string& callsign, bool selfOnly, CYSFNetwork* network, CDisplay* display, unsigned int timeout, bool duplex, bool lowDeviation, bool remoteGateway, CRSSIInterpolator* rssiMapper) :
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m_callsign(NULL),
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m_selfCallsign(NULL),
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m_selfOnly(selfOnly),
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m_network(network),
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m_display(display),
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m_duplex(duplex),
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m_lowDeviation(lowDeviation),
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m_remoteGateway(remoteGateway),
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m_queue(5000U, "YSF Control"),
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m_rfState(RS_RF_LISTENING),
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m_netState(RS_NET_IDLE),
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m_rfTimeoutTimer(1000U, timeout),
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m_netTimeoutTimer(1000U, timeout),
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m_packetTimer(1000U, 0U, 200U),
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m_networkWatchdog(1000U, 0U, 1500U),
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m_elapsed(),
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m_rfFrames(0U),
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m_netFrames(0U),
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m_netLost(0U),
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m_rfErrs(0U),
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m_rfBits(1U),
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m_netErrs(0U),
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m_netBits(1U),
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m_rfSource(NULL),
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m_rfDest(NULL),
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m_netSource(NULL),
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m_netDest(NULL),
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m_lastFICH(),
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m_netN(0U),
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m_rfPayload(),
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m_netPayload(),
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m_rssiMapper(rssiMapper),
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m_rssi(0U),
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m_maxRSSI(0U),
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m_minRSSI(0U),
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m_aveRSSI(0U),
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m_rssiCount(0U),
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m_enabled(true),
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m_fp(NULL)
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{
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assert(display != NULL);
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assert(rssiMapper != NULL);
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m_rfPayload.setUplink(callsign);
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m_rfPayload.setDownlink(callsign);
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m_netPayload.setDownlink(callsign);
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m_netSource = new unsigned char[YSF_CALLSIGN_LENGTH];
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m_netDest = new unsigned char[YSF_CALLSIGN_LENGTH];
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m_callsign = new unsigned char[YSF_CALLSIGN_LENGTH];
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std::string node = callsign;
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node.resize(YSF_CALLSIGN_LENGTH, ' ');
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for (unsigned int i = 0U; i < YSF_CALLSIGN_LENGTH; i++)
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m_callsign[i] = node.at(i);
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m_selfCallsign = new unsigned char[YSF_CALLSIGN_LENGTH];
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::memset(m_selfCallsign, 0x00U, YSF_CALLSIGN_LENGTH);
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for (unsigned int i = 0U; i < callsign.length(); i++)
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m_selfCallsign[i] = callsign.at(i);
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}
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CYSFControl::~CYSFControl()
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{
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delete[] m_netSource;
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delete[] m_netDest;
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delete[] m_callsign;
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delete[] m_selfCallsign;
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}
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bool CYSFControl::writeModem(unsigned char *data, unsigned int len)
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{
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assert(data != NULL);
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if (!m_enabled)
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return false;
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unsigned char type = data[0U];
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if (type == TAG_LOST && m_rfState == RS_RF_AUDIO) {
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if (m_rssi != 0U)
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LogMessage("YSF, transmission lost from %10.10s to %10.10s, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", m_rfSource, m_rfDest, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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else
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LogMessage("YSF, transmission lost from %10.10s to %10.10s, %.1f seconds, BER: %.1f%%", m_rfSource, m_rfDest, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits));
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writeEndRF();
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return false;
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}
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if (type == TAG_LOST && m_rfState == RS_RF_REJECTED) {
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m_rfPayload.reset();
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m_rfSource = NULL;
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m_rfDest = NULL;
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m_rfState = RS_RF_LISTENING;
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return false;
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}
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if (type == TAG_LOST) {
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m_rfPayload.reset();
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m_rfState = RS_RF_LISTENING;
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return false;
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}
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// Have we got RSSI bytes on the end?
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if (len == (YSF_FRAME_LENGTH_BYTES + 4U)) {
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uint16_t raw = 0U;
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raw |= (data[122U] << 8) & 0xFF00U;
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raw |= (data[123U] << 0) & 0x00FFU;
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// Convert the raw RSSI to dBm
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int rssi = m_rssiMapper->interpolate(raw);
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if (rssi != 0)
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LogDebug("YSF, raw RSSI: %u, reported RSSI: %d dBm", raw, rssi);
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// RSSI is always reported as positive
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m_rssi = (rssi >= 0) ? rssi : -rssi;
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if (m_rssi > m_minRSSI)
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m_minRSSI = m_rssi;
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if (m_rssi < m_maxRSSI)
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m_maxRSSI = m_rssi;
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m_aveRSSI += m_rssi;
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m_rssiCount++;
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}
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CYSFFICH fich;
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bool valid = fich.decode(data + 2U);
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if (!valid) {
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unsigned char fi = m_lastFICH.getFI();
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unsigned char ft = m_lastFICH.getFT();
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unsigned char fn = m_lastFICH.getFN();
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unsigned char bt = m_lastFICH.getBT();
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unsigned char bn = m_lastFICH.getBN();
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if (fi == YSF_FI_COMMUNICATIONS && ft > 0U) {
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fn++;
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if (fn > ft) {
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fn = 0U;
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if (bt > 0U)
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bn++;
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}
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}
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m_lastFICH.setFI(YSF_FI_COMMUNICATIONS);
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m_lastFICH.setFN(fn);
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m_lastFICH.setBN(bn);
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} else {
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m_lastFICH = fich;
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}
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#ifdef notdef
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// Stop repeater packets coming through, unless we're acting as a remote gateway
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if (m_remoteGateway) {
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unsigned char mr = m_lastFICH.getMR();
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if (mr != YSF_MR_BUSY)
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return false;
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} else {
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unsigned char mr = m_lastFICH.getMR();
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if (mr == YSF_MR_BUSY)
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return false;
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}
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#endif
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unsigned char dt = m_lastFICH.getDT();
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bool ret = false;
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switch (dt) {
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case YSF_DT_VOICE_FR_MODE:
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ret = processVWData(valid, data);
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break;
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case YSF_DT_VD_MODE1:
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case YSF_DT_VD_MODE2:
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ret = processDNData(valid, data);
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break;
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case YSF_DT_DATA_FR_MODE:
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ret = processFRData(valid, data);
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break;
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default:
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break;
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}
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return ret;
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}
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bool CYSFControl::processVWData(bool valid, unsigned char *data)
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{
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unsigned char fi = m_lastFICH.getFI();
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unsigned char dgid = m_lastFICH.getDGId();
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if (valid && fi == YSF_FI_HEADER) {
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if (m_rfState == RS_RF_LISTENING) {
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bool valid = m_rfPayload.processHeaderData(data + 2U);
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if (!valid)
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return false;
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m_rfSource = m_rfPayload.getSource();
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if (m_selfOnly) {
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bool ret = checkCallsign(m_rfSource);
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if (!ret) {
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LogMessage("YSF, invalid access attempt from %10.10s to DG-ID %u", m_rfSource, dgid);
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m_rfState = RS_RF_REJECTED;
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return true;
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}
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}
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unsigned char cm = m_lastFICH.getCM();
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if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
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m_rfDest = (unsigned char*)"ALL ";
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else
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m_rfDest = m_rfPayload.getDest();
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m_rfFrames = 0U;
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m_rfErrs = 0U;
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m_rfBits = 1U;
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m_rfTimeoutTimer.start();
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m_rfState = RS_RF_AUDIO;
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m_minRSSI = m_rssi;
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m_maxRSSI = m_rssi;
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m_aveRSSI = m_rssi;
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m_rssiCount = 1U;
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#if defined(DUMP_YSF)
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openFile();
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#endif
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m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, dgid, "R", " ");
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LogMessage("YSF, received RF header from %10.10s to DG-ID %u", m_rfSource, dgid);
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CSync::addYSFSync(data + 2U);
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CYSFFICH fich = m_lastFICH;
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fich.encode(data + 2U);
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.setDev(m_lowDeviation);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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m_display->writeFusionRSSI(m_rssi);
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return true;
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}
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} else if (valid && fi == YSF_FI_TERMINATOR) {
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if (m_rfState == RS_RF_REJECTED) {
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m_rfPayload.reset();
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m_rfSource = NULL;
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m_rfDest = NULL;
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m_rfState = RS_RF_LISTENING;
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} else if (m_rfState == RS_RF_AUDIO) {
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m_rfPayload.processHeaderData(data + 2U);
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CSync::addYSFSync(data + 2U);
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CYSFFICH fich = m_lastFICH;
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fich.encode(data + 2U);
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data[0U] = TAG_EOT;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.setDev(m_lowDeviation);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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if (m_rssi != 0U)
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LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", m_rfSource, dgid, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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else
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LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds, BER: %.1f%%", m_rfSource, dgid, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits));
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writeEndRF();
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}
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} else {
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if (m_rfState == RS_RF_AUDIO) {
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// If valid is false, update the m_lastFICH for this transmission
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if (!valid) {
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// XXX Check these values
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m_lastFICH.setFT(0U);
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m_lastFICH.setFN(0U);
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}
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CSync::addYSFSync(data + 2U);
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CYSFFICH fich = m_lastFICH;
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unsigned char fn = fich.getFN();
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unsigned char ft = fich.getFT();
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if (fn == 0U && ft == 1U) {
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// The first packet after the header is odd
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m_rfPayload.processVoiceFRModeData(data + 2U);
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unsigned int errors = m_rfPayload.processVoiceFRModeAudio2(data + 2U);
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m_rfErrs += errors;
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m_rfBits += 288U;
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m_display->writeFusionBER(float(errors) / 2.88F);
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LogDebug("YSF, V Mode 3, seq %u, AMBE FEC %u/288 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 2.88F);
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} else {
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unsigned int errors = m_rfPayload.processVoiceFRModeAudio5(data + 2U);
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m_rfErrs += errors;
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m_rfBits += 720U;
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m_display->writeFusionBER(float(errors) / 7.2F);
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LogDebug("YSF, V Mode 3, seq %u, AMBE FEC %u/720 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 7.2F);
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}
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fich.encode(data + 2U);
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.setDev(m_lowDeviation);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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m_rfFrames++;
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m_display->writeFusionRSSI(m_rssi);
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return true;
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}
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}
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return false;
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}
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bool CYSFControl::processDNData(bool valid, unsigned char *data)
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{
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unsigned char fi = m_lastFICH.getFI();
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unsigned char dgid = m_lastFICH.getDGId();
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if (valid && fi == YSF_FI_HEADER) {
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if (m_rfState == RS_RF_LISTENING) {
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bool valid = m_rfPayload.processHeaderData(data + 2U);
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if (!valid)
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return false;
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m_rfSource = m_rfPayload.getSource();
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if (m_selfOnly) {
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bool ret = checkCallsign(m_rfSource);
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if (!ret) {
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LogMessage("YSF, invalid access attempt from %10.10s to DG-ID %u", m_rfSource, dgid);
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m_rfState = RS_RF_REJECTED;
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return true;
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}
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}
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unsigned char cm = m_lastFICH.getCM();
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if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
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m_rfDest = (unsigned char*)"ALL ";
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else
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m_rfDest = m_rfPayload.getDest();
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m_rfFrames = 0U;
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m_rfErrs = 0U;
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m_rfBits = 1U;
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m_rfTimeoutTimer.start();
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m_rfState = RS_RF_AUDIO;
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m_minRSSI = m_rssi;
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m_maxRSSI = m_rssi;
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m_aveRSSI = m_rssi;
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m_rssiCount = 1U;
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#if defined(DUMP_YSF)
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openFile();
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#endif
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m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, dgid, "R", " ");
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LogMessage("YSF, received RF header from %10.10s to DG-ID %u", m_rfSource, dgid);
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CSync::addYSFSync(data + 2U);
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CYSFFICH fich = m_lastFICH;
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fich.encode(data + 2U);
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.setDev(m_lowDeviation);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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m_display->writeFusionRSSI(m_rssi);
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return true;
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}
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} else if (valid && fi == YSF_FI_TERMINATOR) {
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if (m_rfState == RS_RF_REJECTED) {
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m_rfPayload.reset();
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m_rfSource = NULL;
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m_rfDest = NULL;
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m_rfState = RS_RF_LISTENING;
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} else if (m_rfState == RS_RF_AUDIO) {
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m_rfPayload.processHeaderData(data + 2U);
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CSync::addYSFSync(data + 2U);
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CYSFFICH fich = m_lastFICH;
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fich.encode(data + 2U);
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data[0U] = TAG_EOT;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.setDev(m_lowDeviation);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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if (m_rssi != 0U)
|
|
LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", m_rfSource, dgid, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
|
|
else
|
|
LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds, BER: %.1f%%", m_rfSource, dgid, float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits));
|
|
|
|
writeEndRF();
|
|
}
|
|
} else {
|
|
if (m_rfState == RS_RF_AUDIO) {
|
|
// If valid is false, update the m_lastFICH for this transmission
|
|
if (!valid) {
|
|
unsigned char ft = m_lastFICH.getFT();
|
|
unsigned char fn = m_lastFICH.getFN() + 1U;
|
|
|
|
if (fn > ft)
|
|
fn = 0U;
|
|
|
|
m_lastFICH.setFN(fn);
|
|
}
|
|
|
|
CSync::addYSFSync(data + 2U);
|
|
|
|
unsigned char fn = m_lastFICH.getFN();
|
|
unsigned char dt = m_lastFICH.getDT();
|
|
|
|
switch (dt) {
|
|
case YSF_DT_VD_MODE1: {
|
|
m_rfPayload.processVDMode1Data(data + 2U, fn);
|
|
unsigned int errors = m_rfPayload.processVDMode1Audio(data + 2U);
|
|
m_rfErrs += errors;
|
|
m_rfBits += 235U;
|
|
m_display->writeFusionBER(float(errors) / 2.35F);
|
|
LogDebug("YSF, V/D Mode 1, seq %u, AMBE FEC %u/235 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 2.35F);
|
|
}
|
|
break;
|
|
|
|
case YSF_DT_VD_MODE2: {
|
|
m_rfPayload.processVDMode2Data(data + 2U, fn);
|
|
unsigned int errors = m_rfPayload.processVDMode2Audio(data + 2U);
|
|
m_rfErrs += errors;
|
|
m_rfBits += 405U;
|
|
m_display->writeFusionBER(float(errors) / 4.05F);
|
|
LogDebug("YSF, V/D Mode 2, seq %u, Repetition FEC %u/405 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 4.05F);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
CYSFFICH fich = m_lastFICH;
|
|
|
|
fich.encode(data + 2U);
|
|
|
|
data[0U] = TAG_DATA;
|
|
data[1U] = 0x00U;
|
|
|
|
writeNetwork(data, m_rfFrames % 128U);
|
|
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 2U);
|
|
writeQueueRF(data);
|
|
}
|
|
|
|
#if defined(DUMP_YSF)
|
|
writeFile(data + 2U);
|
|
#endif
|
|
m_rfFrames++;
|
|
|
|
m_display->writeFusionRSSI(m_rssi);
|
|
|
|
return true;
|
|
} else if (valid && m_rfState == RS_RF_LISTENING) {
|
|
// Only use clean frames for late entry.
|
|
unsigned char fn = m_lastFICH.getFN();
|
|
unsigned char dt = m_lastFICH.getDT();
|
|
|
|
switch (dt) {
|
|
case YSF_DT_VD_MODE1:
|
|
valid = m_rfPayload.processVDMode1Data(data + 2U, fn);
|
|
break;
|
|
|
|
case YSF_DT_VD_MODE2:
|
|
valid = m_rfPayload.processVDMode2Data(data + 2U, fn);
|
|
break;
|
|
|
|
default:
|
|
valid = false;
|
|
break;
|
|
}
|
|
|
|
if (!valid)
|
|
return false;
|
|
|
|
unsigned char cm = m_lastFICH.getCM();
|
|
if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
|
|
m_rfDest = (unsigned char*)"ALL ";
|
|
else
|
|
m_rfDest = m_rfPayload.getDest();
|
|
|
|
m_rfSource = m_rfPayload.getSource();
|
|
|
|
if (m_rfSource == NULL || m_rfDest == NULL)
|
|
return false;
|
|
|
|
if (m_selfOnly) {
|
|
bool ret = checkCallsign(m_rfSource);
|
|
if (!ret) {
|
|
LogMessage("YSF, invalid access attempt from %10.10s to DG-ID %u", m_rfSource, dgid);
|
|
m_rfState = RS_RF_REJECTED;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
m_rfFrames = 0U;
|
|
m_rfErrs = 0U;
|
|
m_rfBits = 1U;
|
|
m_rfTimeoutTimer.start();
|
|
m_rfState = RS_RF_AUDIO;
|
|
|
|
m_minRSSI = m_rssi;
|
|
m_maxRSSI = m_rssi;
|
|
m_aveRSSI = m_rssi;
|
|
m_rssiCount = 1U;
|
|
#if defined(DUMP_YSF)
|
|
openFile();
|
|
#endif
|
|
// Build a new header and transmit it
|
|
unsigned char buffer[YSF_FRAME_LENGTH_BYTES + 2U];
|
|
|
|
CSync::addYSFSync(buffer + 2U);
|
|
|
|
CYSFFICH fich = m_lastFICH;
|
|
fich.setFI(YSF_FI_HEADER);
|
|
fich.encode(buffer + 2U);
|
|
|
|
unsigned char csd1[20U], csd2[20U];
|
|
memcpy(csd1 + YSF_CALLSIGN_LENGTH, m_rfSource, YSF_CALLSIGN_LENGTH);
|
|
memset(csd2, ' ', YSF_CALLSIGN_LENGTH + YSF_CALLSIGN_LENGTH);
|
|
|
|
if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
|
|
memset(csd1 + 0U, '*', YSF_CALLSIGN_LENGTH);
|
|
else
|
|
memcpy(csd1 + 0U, m_rfDest, YSF_CALLSIGN_LENGTH);
|
|
|
|
CYSFPayload payload;
|
|
payload.writeHeader(buffer + 2U, csd1, csd2);
|
|
|
|
buffer[0U] = TAG_DATA;
|
|
buffer[1U] = 0x00U;
|
|
|
|
writeNetwork(buffer, m_rfFrames % 128U);
|
|
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(buffer + 2U);
|
|
writeQueueRF(buffer);
|
|
}
|
|
|
|
#if defined(DUMP_YSF)
|
|
writeFile(buffer + 2U);
|
|
#endif
|
|
m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, dgid, "R", " ");
|
|
LogMessage("YSF, received RF late entry from %10.10s to DG-ID %u", m_rfSource, dgid);
|
|
|
|
CSync::addYSFSync(data + 2U);
|
|
|
|
fich = m_lastFICH;
|
|
|
|
fich.encode(data + 2U);
|
|
|
|
data[0U] = TAG_DATA;
|
|
data[1U] = 0x00U;
|
|
|
|
writeNetwork(data, m_rfFrames % 128U);
|
|
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 2U);
|
|
writeQueueRF(data);
|
|
}
|
|
|
|
#if defined(DUMP_YSF)
|
|
writeFile(data + 2U);
|
|
#endif
|
|
m_rfFrames++;
|
|
|
|
m_display->writeFusionRSSI(m_rssi);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool CYSFControl::processFRData(bool valid, unsigned char *data)
|
|
{
|
|
unsigned char fi = m_lastFICH.getFI();
|
|
unsigned char dgid = m_lastFICH.getDGId();
|
|
|
|
if (valid && fi == YSF_FI_HEADER) {
|
|
if (m_rfState == RS_RF_LISTENING) {
|
|
valid = m_rfPayload.processHeaderData(data + 2U);
|
|
if (!valid)
|
|
return false;
|
|
|
|
m_rfSource = m_rfPayload.getSource();
|
|
|
|
if (m_selfOnly) {
|
|
bool ret = checkCallsign(m_rfSource);
|
|
if (!ret) {
|
|
LogMessage("YSF, invalid access attempt from %10.10s to DG-ID %u", m_rfSource, dgid);
|
|
m_rfState = RS_RF_REJECTED;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
unsigned char cm = m_lastFICH.getCM();
|
|
if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
|
|
m_rfDest = (unsigned char*)"ALL ";
|
|
else
|
|
m_rfDest = m_rfPayload.getDest();
|
|
|
|
m_rfFrames = 0U;
|
|
m_rfState = RS_RF_DATA;
|
|
|
|
m_minRSSI = m_rssi;
|
|
m_maxRSSI = m_rssi;
|
|
m_aveRSSI = m_rssi;
|
|
m_rssiCount = 1U;
|
|
#if defined(DUMP_YSF)
|
|
openFile();
|
|
#endif
|
|
m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, dgid, "R", " ");
|
|
LogMessage("YSF, received RF header from %10.10s to DG-ID %u", m_rfSource, dgid);
|
|
|
|
CSync::addYSFSync(data + 2U);
|
|
|
|
CYSFFICH fich = m_lastFICH;
|
|
|
|
fich.encode(data + 2U);
|
|
|
|
data[0U] = TAG_DATA;
|
|
data[1U] = 0x00U;
|
|
|
|
writeNetwork(data, m_rfFrames % 128U);
|
|
#if defined(DUMP_YSF)
|
|
writeFile(data + 2U);
|
|
#endif
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 2U);
|
|
writeQueueRF(data);
|
|
}
|
|
|
|
m_rfFrames++;
|
|
|
|
m_display->writeFusionRSSI(m_rssi);
|
|
|
|
return true;
|
|
}
|
|
} else if (valid && fi == YSF_FI_TERMINATOR) {
|
|
if (m_rfState == RS_RF_REJECTED) {
|
|
m_rfPayload.reset();
|
|
m_rfSource = NULL;
|
|
m_rfDest = NULL;
|
|
m_rfState = RS_RF_LISTENING;
|
|
} else if (m_rfState == RS_RF_DATA) {
|
|
m_rfPayload.processHeaderData(data + 2U);
|
|
|
|
CSync::addYSFSync(data + 2U);
|
|
|
|
CYSFFICH fich = m_lastFICH;
|
|
|
|
fich.encode(data + 2U);
|
|
|
|
data[0U] = TAG_EOT;
|
|
data[1U] = 0x00U;
|
|
|
|
writeNetwork(data, m_rfFrames % 128U);
|
|
#if defined(DUMP_YSF)
|
|
writeFile(data + 2U);
|
|
#endif
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 2U);
|
|
writeQueueRF(data);
|
|
}
|
|
|
|
m_rfFrames++;
|
|
|
|
if (m_rssi != 0U)
|
|
LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds, RSSI: -%u/-%u/-%u dBm", m_rfSource, dgid, float(m_rfFrames) / 10.0F, m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
|
|
else
|
|
LogMessage("YSF, received RF end of transmission from %10.10s to DG-ID %u, %.1f seconds", m_rfSource, dgid, float(m_rfFrames) / 10.0F);
|
|
|
|
writeEndRF();
|
|
}
|
|
} else {
|
|
if (m_rfState == RS_RF_DATA) {
|
|
// If valid is false, update the m_lastFICH for this transmission
|
|
if (!valid) {
|
|
unsigned char ft = m_lastFICH.getFT();
|
|
unsigned char fn = m_lastFICH.getFN() + 1U;
|
|
|
|
if (fn > ft)
|
|
fn = 0U;
|
|
|
|
m_lastFICH.setFN(fn);
|
|
}
|
|
|
|
CSync::addYSFSync(data + 2U);
|
|
|
|
unsigned char fn = m_lastFICH.getFN();
|
|
|
|
m_rfPayload.processDataFRModeData(data + 2U, fn);
|
|
|
|
CYSFFICH fich = m_lastFICH;
|
|
|
|
fich.encode(data + 2U);
|
|
|
|
data[0U] = TAG_DATA;
|
|
data[1U] = 0x00U;
|
|
|
|
writeNetwork(data, m_rfFrames % 128U);
|
|
|
|
if (m_duplex) {
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 2U);
|
|
writeQueueRF(data);
|
|
}
|
|
|
|
#if defined(DUMP_YSF)
|
|
writeFile(data + 2U);
|
|
#endif
|
|
m_rfFrames++;
|
|
|
|
m_display->writeFusionRSSI(m_rssi);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
unsigned int CYSFControl::readModem(unsigned char* data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_queue.isEmpty())
|
|
return 0U;
|
|
|
|
unsigned char len = 0U;
|
|
m_queue.getData(&len, 1U);
|
|
|
|
m_queue.getData(data, len);
|
|
|
|
return len;
|
|
}
|
|
|
|
void CYSFControl::writeEndRF()
|
|
{
|
|
m_rfState = RS_RF_LISTENING;
|
|
|
|
m_rfTimeoutTimer.stop();
|
|
m_rfPayload.reset();
|
|
|
|
// These variables are free'd by YSFPayload
|
|
m_rfSource = NULL;
|
|
m_rfDest = NULL;
|
|
|
|
if (m_netState == RS_NET_IDLE) {
|
|
m_display->clearFusion();
|
|
|
|
if (m_network != NULL)
|
|
m_network->reset();
|
|
}
|
|
|
|
#if defined(DUMP_YSF)
|
|
closeFile();
|
|
#endif
|
|
}
|
|
|
|
void CYSFControl::writeEndNet()
|
|
{
|
|
m_netState = RS_NET_IDLE;
|
|
|
|
m_netTimeoutTimer.stop();
|
|
m_networkWatchdog.stop();
|
|
m_packetTimer.stop();
|
|
|
|
m_netPayload.reset();
|
|
|
|
m_display->clearFusion();
|
|
|
|
if (m_network != NULL)
|
|
m_network->reset();
|
|
}
|
|
|
|
void CYSFControl::writeNetwork()
|
|
{
|
|
unsigned char data[200U];
|
|
unsigned int length = m_network->read(data);
|
|
if (length == 0U)
|
|
return;
|
|
|
|
if (!m_enabled)
|
|
return;
|
|
|
|
if (m_rfState != RS_RF_LISTENING && m_netState == RS_NET_IDLE)
|
|
return;
|
|
|
|
m_networkWatchdog.start();
|
|
|
|
bool gateway = ::memcmp(data + 4U, m_callsign, YSF_CALLSIGN_LENGTH) == 0;
|
|
|
|
unsigned char n = (data[34U] & 0xFEU) >> 1;
|
|
bool end = (data[34U] & 0x01U) == 0x01U;
|
|
|
|
CYSFFICH fich;
|
|
bool valid = fich.decode(data + 35U);
|
|
|
|
unsigned char dgid = 0U;
|
|
if (valid)
|
|
dgid = fich.getDGId();
|
|
|
|
if (!m_netTimeoutTimer.isRunning()) {
|
|
if (end)
|
|
return;
|
|
|
|
::memcpy(m_netSource, data + 14U, YSF_CALLSIGN_LENGTH);
|
|
::memcpy(m_netDest, data + 24U, YSF_CALLSIGN_LENGTH);
|
|
|
|
if (::memcmp(m_netSource, " ", 10U) != 0 && ::memcmp(m_netDest, " ", 10U) != 0) {
|
|
m_display->writeFusion((char*)m_netSource, (char*)m_netDest, dgid, "N", (char*)(data + 4U));
|
|
LogMessage("YSF, received network data from %10.10s to DG-ID %u at %10.10s", m_netSource, dgid, data + 4U);
|
|
}
|
|
|
|
m_netTimeoutTimer.start();
|
|
m_netPayload.reset();
|
|
m_packetTimer.start();
|
|
m_elapsed.start();
|
|
m_netState = RS_NET_AUDIO;
|
|
m_netFrames = 0U;
|
|
m_netLost = 0U;
|
|
m_netErrs = 0U;
|
|
m_netBits = 1U;
|
|
m_netN = 0U;
|
|
} else {
|
|
// Check for duplicate frames, if we can
|
|
if (m_netN == n)
|
|
return;
|
|
}
|
|
|
|
data[33U] = end ? TAG_EOT : TAG_DATA;
|
|
data[34U] = 0x00U;
|
|
|
|
if (valid) {
|
|
unsigned char dt = fich.getDT();
|
|
unsigned char fn = fich.getFN();
|
|
unsigned char ft = fich.getFT();
|
|
unsigned char fi = fich.getFI();
|
|
unsigned char cm = fich.getCM();
|
|
|
|
if (::memcmp(m_netDest, " ", YSF_CALLSIGN_LENGTH) == 0) {
|
|
if (cm == YSF_CM_GROUP1 || cm == YSF_CM_GROUP2)
|
|
::memcpy(m_netDest, "ALL ", YSF_CALLSIGN_LENGTH);
|
|
}
|
|
|
|
if (m_remoteGateway) {
|
|
fich.setVoIP(false);
|
|
fich.setMR(YSF_MR_DIRECT);
|
|
} else {
|
|
fich.setVoIP(true);
|
|
fich.setMR(YSF_MR_BUSY);
|
|
}
|
|
|
|
fich.setDev(m_lowDeviation);
|
|
fich.encode(data + 35U);
|
|
|
|
// Set the downlink callsign
|
|
switch (fi) {
|
|
case YSF_FI_HEADER: {
|
|
bool ok = m_netPayload.processHeaderData(data + 35U);
|
|
if (ok)
|
|
processNetCallsigns(data, dgid);
|
|
}
|
|
break;
|
|
|
|
case YSF_FI_TERMINATOR:
|
|
m_netPayload.processHeaderData(data + 35U);
|
|
break;
|
|
|
|
case YSF_FI_COMMUNICATIONS:
|
|
switch (dt) {
|
|
case YSF_DT_VD_MODE1: {
|
|
bool ok = m_netPayload.processVDMode1Data(data + 35U, fn, gateway);
|
|
if (ok)
|
|
processNetCallsigns(data, dgid);
|
|
|
|
unsigned int errors = m_netPayload.processVDMode1Audio(data + 35U);
|
|
m_netErrs += errors;
|
|
m_netBits += 235U;
|
|
}
|
|
break;
|
|
|
|
case YSF_DT_VD_MODE2: {
|
|
bool ok = m_netPayload.processVDMode2Data(data + 35U, fn, gateway);
|
|
if (ok)
|
|
processNetCallsigns(data, dgid);
|
|
|
|
unsigned int errors = m_netPayload.processVDMode2Audio(data + 35U);
|
|
m_netErrs += errors;
|
|
m_netBits += 135U;
|
|
}
|
|
break;
|
|
|
|
case YSF_DT_DATA_FR_MODE:
|
|
m_netPayload.processDataFRModeData(data + 35U, fn, gateway);
|
|
break;
|
|
|
|
case YSF_DT_VOICE_FR_MODE:
|
|
if (fn == 0U && ft == 1U) {
|
|
// The first packet after the header is odd
|
|
m_netPayload.processVoiceFRModeData(data + 35U);
|
|
unsigned int errors = m_netPayload.processVoiceFRModeAudio2(data + 35U);
|
|
m_netErrs += errors;
|
|
m_netBits += 288U;
|
|
} else {
|
|
unsigned int errors = m_netPayload.processVoiceFRModeAudio5(data + 35U);
|
|
m_netErrs += errors;
|
|
m_netBits += 720U;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
writeQueueNet(data + 33U);
|
|
|
|
m_packetTimer.start();
|
|
m_netFrames++;
|
|
m_netN = n;
|
|
|
|
if (end) {
|
|
LogMessage("YSF, received network end of transmission from %10.10s to DG-ID %u, %.1f seconds, %u%% packet loss, BER: %.1f%%", m_netSource, dgid, float(m_netFrames) / 10.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
writeEndNet();
|
|
}
|
|
}
|
|
|
|
void CYSFControl::clock(unsigned int ms)
|
|
{
|
|
if (m_network != NULL)
|
|
writeNetwork();
|
|
|
|
m_rfTimeoutTimer.clock(ms);
|
|
m_netTimeoutTimer.clock(ms);
|
|
|
|
if (m_netState == RS_NET_AUDIO) {
|
|
m_networkWatchdog.clock(ms);
|
|
|
|
if (m_networkWatchdog.hasExpired()) {
|
|
LogMessage("YSF, network watchdog has expired, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_netFrames) / 10.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
writeEndNet();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CYSFControl::writeQueueRF(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netState != RS_NET_IDLE)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = YSF_FRAME_LENGTH_BYTES + 2U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("YSF, overflow in the System Fusion RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CYSFControl::writeQueueNet(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = YSF_FRAME_LENGTH_BYTES + 2U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("YSF, overflow in the System Fusion RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CYSFControl::writeNetwork(const unsigned char *data, unsigned int count)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
m_network->write(m_rfSource, m_rfDest, data + 2U, count, data[0U] == TAG_EOT);
|
|
}
|
|
|
|
bool CYSFControl::openFile()
|
|
{
|
|
if (m_fp != NULL)
|
|
return true;
|
|
|
|
time_t t;
|
|
::time(&t);
|
|
|
|
struct tm* tm = ::localtime(&t);
|
|
|
|
char name[100U];
|
|
::sprintf(name, "YSF_%04d%02d%02d_%02d%02d%02d.ambe", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
|
|
|
|
m_fp = ::fopen(name, "wb");
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite("YSF", 1U, 3U, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CYSFControl::writeFile(const unsigned char* data)
|
|
{
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite(data, 1U, YSF_FRAME_LENGTH_BYTES, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
void CYSFControl::closeFile()
|
|
{
|
|
if (m_fp != NULL) {
|
|
::fclose(m_fp);
|
|
m_fp = NULL;
|
|
}
|
|
}
|
|
|
|
bool CYSFControl::checkCallsign(const unsigned char* callsign) const
|
|
{
|
|
return ::memcmp(callsign, m_selfCallsign, ::strlen((char*)m_selfCallsign)) == 0;
|
|
}
|
|
|
|
void CYSFControl::processNetCallsigns(const unsigned char* data, unsigned char dgid)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (::memcmp(m_netSource, " ", 10U) == 0 || ::memcmp(m_netDest, " ", 10U) == 0) {
|
|
if (::memcmp(m_netSource, " ", YSF_CALLSIGN_LENGTH) == 0) {
|
|
unsigned char* source = m_netPayload.getSource();
|
|
if (source != NULL)
|
|
::memcpy(m_netSource, source, YSF_CALLSIGN_LENGTH);
|
|
}
|
|
|
|
if (::memcmp(m_netDest, " ", YSF_CALLSIGN_LENGTH) == 0) {
|
|
unsigned char* dest = m_netPayload.getDest();
|
|
if (dest != NULL)
|
|
::memcpy(m_netDest, dest, YSF_CALLSIGN_LENGTH);
|
|
}
|
|
|
|
if (::memcmp(m_netSource, " ", 10U) != 0 && ::memcmp(m_netDest, " ", 10U) != 0) {
|
|
m_display->writeFusion((char*)m_netSource, (char*)m_netDest, dgid, "N", (char*)(data + 4U));
|
|
LogMessage("YSF, received network data from %10.10s to DG-ID %u at %10.10s", m_netSource, dgid, data + 4U);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CYSFControl::isBusy() const
|
|
{
|
|
return m_rfState != RS_RF_LISTENING || m_netState != RS_NET_IDLE;
|
|
}
|
|
|
|
void CYSFControl::enable(bool enabled)
|
|
{
|
|
if (!enabled && m_enabled) {
|
|
m_queue.clear();
|
|
|
|
// Reset the RF section
|
|
m_rfState = RS_RF_LISTENING;
|
|
|
|
m_rfTimeoutTimer.stop();
|
|
m_rfPayload.reset();
|
|
|
|
// These variables are free'd by YSFPayload
|
|
m_rfSource = NULL;
|
|
m_rfDest = NULL;
|
|
|
|
// Reset the networking section
|
|
m_netState = RS_NET_IDLE;
|
|
|
|
m_netTimeoutTimer.stop();
|
|
m_networkWatchdog.stop();
|
|
m_packetTimer.stop();
|
|
|
|
m_netPayload.reset();
|
|
}
|
|
|
|
m_enabled = enabled;
|
|
}
|