Improve the M17 networking.
This commit is contained in:
parent
e0f4928db5
commit
6e9174cf4c
158
M17Control.cpp
158
M17Control.cpp
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@ -89,9 +89,9 @@ bool CM17Control::writeModem(unsigned char *data, unsigned int len)
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std::string source = m_lookup->find(m_rfLayer3.getSourceUnitId());
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if (m_rssi != 0U)
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LogMessage("M17, transmission lost from %s to %s%u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 12.5F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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LogMessage("M17, transmission lost from %s to %s%u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 25.0F, 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("M17, transmission lost from %s to %s%u, %.1f seconds, BER: %.1f%%", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 12.5F, float(m_rfErrs * 100U) / float(m_rfBits));
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LogMessage("M17, transmission lost from %s to %s%u, %.1f seconds, BER: %.1f%%", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 25.0F, 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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@ -139,31 +139,9 @@ bool CM17Control::writeModem(unsigned char *data, unsigned int len)
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if (valid)
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m_rfLastLICH = lich;
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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 direction = m_rfLastLICH.getDirection();
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if (direction == M17_LICH_DIRECTION_INBOUND)
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return false;
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} else {
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unsigned char direction = m_rfLastLICH.getDirection();
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if (direction == M17_LICH_DIRECTION_OUTBOUND)
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return false;
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}
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unsigned char usc = m_rfLastLICH.getFCT();
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unsigned char option = m_rfLastLICH.getOption();
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bool ret;
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if (usc == M17_LICH_USC_UDCH)
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ret = processData(option, data);
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else
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ret = processVoice(usc, option, data);
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return ret;
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}
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bool CM17Control::processVoice(unsigned char usc, unsigned char option, unsigned char *data)
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{
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CM17SACCH sacch;
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bool valid = sacch.decode(data + 2U);
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if (valid) {
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@ -260,9 +238,9 @@ bool CM17Control::processVoice(unsigned char usc, unsigned char option, unsigned
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m_rfFrames++;
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if (m_rssi != 0U)
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LogMessage("M17, received RF end of transmission from %s to %s%u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 12.5F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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LogMessage("M17, received RF end of transmission from %s to %s%u, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 25.0F, 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("M17, received RF end of transmission from %s to %s%u, %.1f seconds, BER: %.1f%%", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 12.5F, float(m_rfErrs * 100U) / float(m_rfBits));
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LogMessage("M17, received RF end of transmission from %s to %s%u, %.1f seconds, BER: %.1f%%", source.c_str(), grp ? "TG " : "", dstId, float(m_rfFrames) / 25.0F, float(m_rfErrs * 100U) / float(m_rfBits));
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writeEndRF();
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} else {
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m_rfFrames = 0U;
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@ -552,127 +530,6 @@ bool CM17Control::processVoice(unsigned char usc, unsigned char option, unsigned
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return true;
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}
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bool CM17Control::processData(unsigned char option, unsigned char *data)
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{
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CM17UDCH udch;
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bool validUDCH = udch.decode(data + 2U);
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if (m_rfState == RS_RF_LISTENING && !validUDCH)
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return false;
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if (validUDCH) {
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unsigned char ran = udch.getRAN();
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if (ran != m_ran && ran != 0U)
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return false;
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}
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unsigned char netData[40U];
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::memset(netData, 0x00U, 40U);
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// The layer3 data will only be correct if valid is true
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unsigned char buffer[23U];
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udch.getData(buffer);
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CM17Layer3 layer3;
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layer3.decode(buffer, 184U);
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if (m_rfState == RS_RF_LISTENING) {
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unsigned char type = layer3.getMessageType();
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if (type != M17_MESSAGE_TYPE_DCALL_HDR)
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return false;
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unsigned short srcId = layer3.getSourceUnitId();
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unsigned short dstId = layer3.getDestinationGroupId();
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bool grp = layer3.getIsGroup();
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if (m_selfOnly) {
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if (srcId != m_id)
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return false;
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}
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unsigned char frames = layer3.getDataBlocks();
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std::string source = m_lookup->find(srcId);
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m_display->writeM17(source.c_str(), grp, dstId, "R");
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m_display->writeM17RSSI(m_rssi);
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LogMessage("M17, received RF data header from %s to %s%u, %u blocks", source.c_str(), grp ? "TG " : "", dstId, frames);
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m_rfLayer3 = layer3;
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m_rfFrames = 0U;
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m_rfState = RS_RF_DATA;
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#if defined(DUMP_M17)
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openFile();
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#endif
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}
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if (m_rfState != RS_RF_DATA)
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return false;
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CSync::addM17Sync(data + 2U);
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CM17LICH lich;
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lich.setRFCT(M17_LICH_RFCT_RDCH);
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lich.setFCT(M17_LICH_USC_UDCH);
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lich.setOption(option);
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lich.setDirection(m_remoteGateway || !m_duplex ? M17_LICH_DIRECTION_INBOUND : M17_LICH_DIRECTION_OUTBOUND);
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lich.encode(data + 2U);
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lich.setDirection(M17_LICH_DIRECTION_INBOUND);
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netData[0U] = lich.getRaw();
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udch.getRaw(netData + 1U);
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unsigned char type = M17_MESSAGE_TYPE_DCALL_DATA;
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if (validUDCH) {
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type = layer3.getMessageType();
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data[0U] = type == M17_MESSAGE_TYPE_TX_REL ? TAG_EOT : TAG_DATA;
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udch.setRAN(m_ran);
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udch.encode(data + 2U);
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} else {
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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}
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scrambler(data + 2U);
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switch (type) {
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case M17_MESSAGE_TYPE_DCALL_HDR:
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writeNetwork(netData, NNMT_DATA_HEADER);
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break;
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case M17_MESSAGE_TYPE_TX_REL:
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writeNetwork(netData, NNMT_DATA_TRAILER);
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break;
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default:
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writeNetwork(netData, NNMT_DATA_BODY);
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break;
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}
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if (m_duplex)
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writeQueueRF(data);
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m_rfFrames++;
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#if defined(DUMP_M17)
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writeFile(data + 2U);
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#endif
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if (data[0U] == TAG_EOT) {
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unsigned short dstId = m_rfLayer3.getDestinationGroupId();
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bool grp = m_rfLayer3.getIsGroup();
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std::string source = m_lookup->find(m_rfLayer3.getSourceUnitId());
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LogMessage("M17, ended RF data transmission from %s to %s%u", source.c_str(), grp ? "TG " : "", dstId);
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writeEndRF();
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}
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return true;
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}
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unsigned int CM17Control::readModem(unsigned char* data)
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{
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assert(data != NULL);
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@ -728,7 +585,7 @@ void CM17Control::writeEndNet()
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void CM17Control::writeNetwork()
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{
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unsigned char netData[40U];
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unsigned char netData[100U];
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bool exists = m_network->read(netData);
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if (!exists)
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return;
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@ -749,7 +606,6 @@ void CM17Control::writeNetwork()
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lich.setRaw(netData[0U]);
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unsigned char usc = lich.getFCT();
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unsigned char option = lich.getOption();
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lich.setDirection(m_remoteGateway || !m_duplex ? M17_LICH_DIRECTION_INBOUND : M17_LICH_DIRECTION_OUTBOUND);
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lich.encode(data + 2U);
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if (usc == M17_LICH_USC_UDCH) {
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@ -831,7 +687,7 @@ void CM17Control::writeNetwork()
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if (type == M17_MESSAGE_TYPE_TX_REL) {
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m_netFrames++;
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LogMessage("M17, received network end of transmission from %s to %s%u, %.1f seconds", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId, float(m_netFrames) / 12.5F);
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LogMessage("M17, received network end of transmission from %s to %s%u, %.1f seconds", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId, float(m_netFrames) / 25.0F);
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writeEndNet();
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} else if (type == M17_MESSAGE_TYPE_VCALL) {
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LogMessage("M17, received network transmission from %s to %s%u", source.get(keyCALLSIGN).c_str(), grp ? "TG " : "", dstId);
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@ -987,7 +843,7 @@ void CM17Control::clock(unsigned int ms)
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m_networkWatchdog.clock(ms);
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if (m_networkWatchdog.hasExpired()) {
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LogMessage("M17, network watchdog has expired, %.1f seconds", float(m_netFrames) / 12.5F);
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LogMessage("M17, network watchdog has expired, %.1f seconds", float(m_netFrames) / 25.0F);
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writeEndNet();
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}
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}
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@ -78,11 +78,8 @@ private:
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bool m_enabled;
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FILE* m_fp;
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bool processVoice(unsigned char usc, unsigned char option, unsigned char* data);
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void writeQueueRF(const unsigned char* data);
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void writeQueueNet(const unsigned char* data);
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void writeNetwork(const unsigned char* data);
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void writeNetwork();
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void scrambler(unsigned char* data) const;
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@ -34,8 +34,15 @@ m_addr(),
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m_addrLen(0U),
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m_debug(debug),
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m_enabled(false),
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m_buffer(1000U, "M17 Network")
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m_outId(0U),
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m_inId(0U),
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m_buffer(1000U, "M17 Network"),
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m_random()
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{
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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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if (CUDPSocket::lookup(gatewayAddress, gatewayPort, m_addr, m_addrLen) != 0)
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m_addrLen = 0U;
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}
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@ -65,6 +72,16 @@ bool CM17Network::write(const unsigned char* data)
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buffer[0U] = 'M';
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buffer[1U] = '1';
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buffer[2U] = '7';
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buffer[3U] = ' ';
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// Create a random id for this transmission if needed
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if (m_outId == 0U) {
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std::uniform_int_distribution<uint16_t> dist(0x0001, 0xFFFE);
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m_outId = dist(m_random);
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}
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buffer[4U] = m_outId / 256U; // Unique session id
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buffer[5U] = m_outId % 256U;
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if (m_debug)
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CUtils::dump(1U, "M17 data transmitted", buffer, 36U);
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@ -93,9 +110,22 @@ void CM17Network::clock(unsigned int ms)
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if (m_debug)
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CUtils::dump(1U, "M17 Network Data Received", buffer, length);
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if (::memcmp(buffer + 0U, "M17", 3U) != 0)
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if (::memcmp(buffer + 0U, "M17 ", 4U) != 0)
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return;
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uint16_t id = (buffer[4U] << 8) + (buffer[5U] << 0);
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if (m_inId == 0U) {
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m_inId = id;
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} else {
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if (id != m_inId)
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return;
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}
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// EOT?
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uint16_t fn = (buffer[38U] << 8) + (buffer[39U] << 0);
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if ((fn & 0x8000U) == 0x8000U)
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m_inId = 0U;
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unsigned char c = length;
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m_buffer.addData(&c, 1U);
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@ -124,6 +154,12 @@ void CM17Network::close()
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LogMessage("Closing M17 network connection");
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}
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void CM17Network::reset()
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{
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m_outId = 0U;
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m_inId = 0U;
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}
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void CM17Network::enable(bool enabled)
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{
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if (!enabled && m_enabled)
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@ -23,6 +23,7 @@
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#include "RingBuffer.h"
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#include "UDPSocket.h"
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#include <random>
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#include <cstdint>
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class CM17Network {
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unsigned int m_addrLen;
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bool m_debug;
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bool m_enabled;
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uint16_t m_outId;
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uint16_t m_inId;
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CRingBuffer<unsigned char> m_buffer;
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std::mt19937 m_random;
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};
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#endif
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@ -225,8 +225,8 @@ Debug=0
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[M17 Network]
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Enable=1
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GatewayAddress=127.0.0.1
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GatewayPort=11657
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LocalPort=11657
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GatewayPort=17000
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LocalPort=17000
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# ModeHang=3
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Debug=0
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@ -737,7 +737,7 @@ void CNXDNControl::writeEndNet()
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void CNXDNControl::writeNetwork()
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{
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unsigned char netData[40U];
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unsigned char netData[100U];
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bool exists = m_network->read(netData);
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if (!exists)
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return;
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