Merge branch 'master' of github.com:collin80/SavvyCAN

README.md

@@ -32,6 +32,7 @@ of this program. It can load and save in several formats:
 9. Vehicle Spy log files
 10. CANDump / Kayak (Read only)
 11. PCAN Viewer (Read Only)
+12. Wireshark socketcan PCAP file (Read only)
 
 ## Dependencies
 
@@ -47,9 +48,9 @@ to download it separately.
 
 This project requires 5.14.0 or higher because of a dependency on QtSerialBus and other new additions to Qt.
 
-NOTE: As the code in this master branch sits, it will not properly compile with QT6. 
+NOTE: As the code in this master branch sits, it does compile with QT6. Support for QT6 is approximately "beta" quality. Most all functions should work, please send issues if found.
-However, there is a QT6WIP branch that should successfully compile. The QT6WIP branch may not
+
-function entirely properly yet.
+It appears that the current binary build for MacOS requires at least MacOS 10.15
 
 ## Instructions for compiling:
 

SavvyCAN.pro

@@ -4,6 +4,10 @@
 #
 #-------------------------------------------------
 
+!versionAtLeast(QT_VERSION, 5.14.0) {
+    error("Current version of Qt ($${QT_VERSION}) is too old, this project requires Qt 5.14 or newer")
+}
+
 QT = core gui printsupport qml serialbus serialport widgets help network opengl
 
 CONFIG(release, debug|release):DEFINES += QT_NO_DEBUG_OUTPUT

connections/lawicel_serial.cpp

@@ -491,7 +491,26 @@ void LAWICELSerial::readSerialData()
         {
             qDebug() << "Got CR!";
 
-            buildFrame.setTimeStamp(QCanBusFrame::TimeStamp(0, QDateTime::currentMSecsSinceEpoch() * 1000l));
+            if (useSystemTime)
+            {
+                buildTimestamp = QDateTime::currentMSecsSinceEpoch() * 1000l;
+            }
+            else
+            {
+                //If total length is greater than command, header and data, timestamps must be enabled.
+                if (data.length() > (5 + mBuildLine.mid(4, 1).toInt() * 2 + 1))
+                {
+                    //Four bytes after the end of the data bytes.
+                    buildTimestamp = mBuildLine.mid(5 + mBuildLine.mid(4, 1).toInt() * 2, 4).toInt(nullptr, 16) * 1000l;
+                }
+                else
+                {
+                    //Default to system time if timestamps are disabled.
+                    buildTimestamp = QDateTime::currentMSecsSinceEpoch() * 1000l;
+                }
+            }
+            buildFrame.setTimeStamp(QCanBusFrame::TimeStamp(0, buildTimestamp));
+
             switch (mBuildLine[0].toLatin1())
             {
             case 't': //standard frame

connections/lawicel_serial.h

@@ -61,6 +61,7 @@ protected:
     QSerialPort *serial;
     int framesRapid;
     CANFrame buildFrame;
+    qint64 buildTimestamp;
     bool can0Enabled;
     bool can0ListenOnly;
     bool canFd;

dbc/dbc_classes.cpp

@@ -214,12 +214,12 @@ QString DBC_SIGNAL::makePrettyOutput(double floatVal, int64_t intVal, bool outpu
             }
         }
         if (!foundVal) outputString += QString::number(intVal);
-        if (outputUnit) outputString += unitName;
+        if (outputUnit) outputString += " " + unitName;
     }
     else //otherwise display the actual number and unit (if it exists)
     {
        outputString += (isInteger ? QString::number(intVal) : QString::number(floatVal));
-       if (outputUnit) outputString += unitName;
+       if (outputUnit) outputString += " " + unitName;
     }
     return outputString;
 }

dbc/dbchandler.cpp

@@ -674,6 +674,44 @@ bool DBCFile::parseSignalMultiplexValueLine(QString line)
     return false;
 }
 
+bool DBCFile::parseSignalValueTypeLine(QString line)
+{
+    QRegularExpression regex;
+    QRegularExpressionMatch match;
+    qDebug() << "Found a signal valtype line";
+    regex.setPattern("^SIG\\_VALTYPE\\_ *(\\d+) *([-\\w]+) *: *(\\d+);");
+    match = regex.match(line);
+
+    // captured 1 is the message id
+    // captured 2 is the signal name
+    // captured 3 is the valtype
+    if (!match.hasMatch()) { return false; }
+    uint32_t id = match.captured(1).toULong() & 0x1FFFFFFFUL;
+
+    DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFUL);
+    if (msg == nullptr) { return false; }
+
+    DBC_SIGNAL *thisSignal = msg->sigHandler->findSignalByName(match.captured(2));
+    if (thisSignal == nullptr) { return false; }
+    int valType = match.captured(3).toInt();
+
+    switch (valType) {
+        case 1: {
+            thisSignal->valType = SP_FLOAT;
+            break;
+        }
+        case 2: {
+            thisSignal->valType = DP_FLOAT;
+            break;
+        }
+        default: {
+            return false;
+        }
+    }
+    return true;
+}
+
+
 bool DBCFile::parseValueLine(QString line)
 {
     QRegularExpression regex;
@@ -941,6 +979,11 @@ bool DBCFile::loadFile(QString fileName)
                 if (!parseSignalMultiplexValueLine(line)) numSigFaults++;
             }
 
+            if (line.startsWith("SIG_VALTYPE_ ")) //defines a signal value type
+            {
+                if (!parseSignalValueTypeLine(line)) numSigFaults++;
+            }
+
             if (line.startsWith("BU_:")) //line specifies the nodes on this canbus
             {
                 qDebug() << "Found a BU line";

dbc/dbchandler.h

@@ -106,6 +106,7 @@ private:
     bool parseSignalMultiplexValueLine(QString line);
     DBC_MESSAGE* parseMessageLine(QString line);
     bool parseValueLine(QString line);
+    bool parseSignalValueTypeLine(QString line);
     bool parseAttributeLine(QString line);
     bool parseDefaultAttrLine(QString line);
 };

framefileio.cpp

@@ -191,6 +191,7 @@ bool FrameFileIO::loadFrameFile(QString &fileName, QVector<CANFrame>* frameCache
     filters.append(QString(tr("CLX000 (*.txt *.TXT)")));
     filters.append(QString(tr("CANServer Binary Log (*.log *.LOG)")));
     filters.append(QString(tr("Wireshark (*.pcap *.PCAP *.pcapng *.PCAPNG)")));
+    filters.append(QString(tr("Wireshark SocketCAN (*.pcap *.PCAP")));
 
     dialog.setDirectory(settings.value("FileIO/LoadSaveDirectory", dialog.directory().path()).toString());
     dialog.setFileMode(QFileDialog::ExistingFile);
@@ -237,6 +238,7 @@ bool FrameFileIO::loadFrameFile(QString &fileName, QVector<CANFrame>* frameCache
         if (selectedNameFilter == filters[22]) result = loadCLX000File(filename, frameCache);
         if (selectedNameFilter == filters[23]) result = loadCANServerFile(filename, frameCache);
         if (selectedNameFilter == filters[24]) result = loadWiresharkFile(filename, frameCache);
+        if (selectedNameFilter == filters[25]) result = loadWiresharkSocketCANFile(filename, frameCache);
 
 
         progress.cancel();
@@ -288,6 +290,28 @@ bool FrameFileIO::autoDetectLoadFile(QString filename, QVector<CANFrame>* frames
         }
     }
 
+    // Attempt to load socket CAN first to avoid generic wireshark logic catching it
+    qDebug() << "Attempting Wireshark Socket CAN Log";
+    if (isWiresharkSocketCANFile(filename))
+    {
+        if (loadWiresharkSocketCANFile(filename, frames))
+        {
+            qDebug() << "Loaded as Wireshark SocketCAN Log successfully!";
+            return true;
+        }
+    }
+
+    // This and the decoder above were both moved above TeslaAPFile as they match based on magic numbers and sometimes these files were falling into the TeslaAP decoder
+    qDebug() << "Attempting Wireshark Log";
+    if (isWiresharkFile(filename))
+    {
+        if (loadWiresharkFile(filename, frames))
+        {
+            qDebug() << "Loaded as Wireshark Log successfully!";
+            return true;
+        }
+    }
+
     qDebug() << "Attempting Tesla AP Snapshot";
     if (isTeslaAPFile(filename))
     {
@@ -308,16 +332,6 @@ bool FrameFileIO::autoDetectLoadFile(QString filename, QVector<CANFrame>* frames
         }
     }
 
-    qDebug() << "Attempting Wireshark Log";
-    if (isWiresharkFile(filename))
-    {
-        if (loadWiresharkFile(filename, frames))
-        {
-            qDebug() << "Loaded as Wireshark Log successfully!";
-            return true;
-        }
-    }
-
     qDebug() << "Attempting canalyzer ASC";
     if (isCanalyzerASC(filename))
     {
@@ -5023,7 +5037,7 @@ bool FrameFileIO::loadWiresharkFile(QString filename, QVector<CANFrame>* frames)
     
     QByteArray ba = filename.toLocal8Bit();
 
-    pcap_data_file = pcap_open_offline(ba.data(), errbuf);
+    pcap_data_file = pcap_open_offline(ba.data(), errbuf, PCAP_LINKTYPE_ANY);
 	if (!pcap_data_file) {
 		return false;
 	}
@@ -5050,9 +5064,13 @@ bool FrameFileIO::loadWiresharkFile(QString filename, QVector<CANFrame>* frames)
         thisFrame.isReceived = true; // TODO: check if tx detection is possible
             
         thisFrame.setFrameType(QCanBusFrame::DataFrame);
-        thisFrame.setFrameId((0xff & *(packetData+17)) << 8 | (0xff & *(packetData+16)));
+        if ((0x80 & *(packetData+19)))  {
-        if (thisFrame.frameId() <= 0x7FF) thisFrame.setExtendedFrameFormat(false);
+            thisFrame.setExtendedFrameFormat(true);
-            else thisFrame.setExtendedFrameFormat(true);
+            thisFrame.setFrameId((0x3f & *(packetData+19))<<24 | (0xff & *(packetData+18)) << 16 | (0xff & *(packetData+17)) << 8 | (0xff & *(packetData+16)));
+        } else {
+            thisFrame.setExtendedFrameFormat(false);
+            thisFrame.setFrameId((0xff & *(packetData+17)) << 8 | (0xff & *(packetData+16)));
+        }
         thisFrame.bus = 0;
         int numBytes = *(packetData+20);
         QByteArray bytes(numBytes, 0);
@@ -5079,7 +5097,7 @@ bool FrameFileIO::isWiresharkFile(QString filename)
     char errbuf[PCAP_ERRBUF_SIZE];
     QByteArray ba = filename.toLocal8Bit();
 
-    pcap_data_file = pcap_open_offline(ba.data(), errbuf);
+    pcap_data_file = pcap_open_offline(ba.data(), errbuf, PCAP_LINKTYPE_ANY);
 	if (!pcap_data_file) {
 		return false;
 	}
@@ -5089,3 +5107,96 @@ bool FrameFileIO::isWiresharkFile(QString filename)
 
     return true;
 }
+
+bool FrameFileIO::loadWiresharkSocketCANFile(QString filename, QVector<CANFrame>* frames)
+{
+    pcap_t *pcap_data_file;
+    CANFrame thisFrame;
+    long long startTimestamp = 0;
+    long long timeStamp;
+    int lineCounter = 0;
+    bool foundErrors = false;
+    pcap_pkthdr packetHeader;
+    const char *packetData = NULL;
+    char errbuf[PCAP_ERRBUF_SIZE];
+
+    QByteArray ba = filename.toLocal8Bit();
+
+    pcap_data_file = pcap_open_offline(ba.data(), errbuf, PCAP_LINKTYPE_SOCKETCAN);
+    if (!pcap_data_file) {
+        return false;
+    }
+
+    packetData = (const char*)pcap_next(pcap_data_file, &packetHeader);
+    while (packetData) {
+        lineCounter++;
+        if (lineCounter > 100) {
+            qApp->processEvents();
+            lineCounter = 0;
+        }
+        thisFrame.bus = 0;
+
+        // Timestamp
+        timeStamp = packetHeader.ts.tv_sec * 1000000 + packetHeader.ts.tv_usec;
+        if (0 == startTimestamp) {
+            startTimestamp = timeStamp;
+        }
+        timeStamp -= startTimestamp;
+        thisFrame.setTimeStamp(QCanBusFrame::TimeStamp(0, timeStamp));
+
+        // ID and extended frame format
+        const quint32 can_id = qFromBigEndian<quint32>(packetData);
+        if (can_id & 0x80000000) {
+            thisFrame.setExtendedFrameFormat(true);
+                thisFrame.setFrameId(0x1fffffff & can_id);
+        } else {
+            thisFrame.setExtendedFrameFormat(false);
+            thisFrame.setFrameId(0x7ff & can_id);
+        }
+
+        // Frame type
+        if (can_id & 0x20000000U) {
+            thisFrame.setFrameType(QCanBusFrame::ErrorFrame);
+        } else if (can_id & 0x40000000U) {
+            thisFrame.setFrameType(QCanBusFrame::RemoteRequestFrame);
+        } else {
+            thisFrame.setFrameType(QCanBusFrame::DataFrame);
+        }
+
+        // Direction - This isn't actually officially supported, but CAN Bus Debugger device logs set this byte to 1 to indicate a TX frame and 0 for RX
+        quint8 direction = (quint8) *(packetData + 6);
+        thisFrame.isReceived = (direction != 1);
+
+        // Data
+        quint8 numBytes = (quint8) *(packetData + 4);
+        if (numBytes > 8) {
+            numBytes = 8;
+        }
+        QByteArray bytes(numBytes, 0);
+        for (int d = 0; d < numBytes; d++) {
+            bytes[d] = *(packetData + 8 + d);
+        }
+        thisFrame.setPayload(bytes);
+        frames->append(thisFrame);
+
+        packetData = (const char*) pcap_next(pcap_data_file, &packetHeader);
+    }
+    pcap_close(pcap_data_file);
+    pcap_data_file = NULL;
+    return !foundErrors;
+}
+
+bool FrameFileIO::isWiresharkSocketCANFile(QString filename)
+{
+    pcap_t *pcap_data_file;
+    char errbuf[PCAP_ERRBUF_SIZE];
+    QByteArray ba = filename.toLocal8Bit();
+
+    pcap_data_file = pcap_open_offline(ba.data(), errbuf, PCAP_LINKTYPE_SOCKETCAN);
+    if (!pcap_data_file) {
+        return false;
+    }
+    pcap_close(pcap_data_file);
+    pcap_data_file = NULL;
+    return true;
+}

framefileio.h

@@ -54,6 +54,7 @@ public:
     static bool loadCLX000File(QString filename, QVector<CANFrame>* frames);
     static bool loadCANServerFile(QString filename, QVector<CANFrame>* frames);
     static bool loadWiresharkFile(QString filename, QVector<CANFrame>* frames);
+    static bool loadWiresharkSocketCANFile(QString filename, QVector<CANFrame>* frames);
 
     //functions that pre-scan a file to try to figure out if they could read it. Used to automatically determine
     //file type and load it.
@@ -80,6 +81,7 @@ public:
     static bool isCLX000File(QString filename);
     static bool isCANServerFile(QString filename);
     static bool isWiresharkFile(QString filename);
+    static bool isWiresharkSocketCANFile(QString filename);
 
     static bool saveCRTDFile(QString, const QVector<CANFrame>*);
     static bool saveNativeCSVFile(QString, const QVector<CANFrame>*);

pcaplite.cpp

@@ -19,7 +19,7 @@
 static unsigned char pcap_buffer[MAX_CAN_PACKET_SIZE];
 static pcap_t p;
 
-pcap *pcap_open_offline(const char *filename, char *error_text) {
+pcap *pcap_open_offline(const char *filename, char *error_text, int expected_link_type) {
 	FILE *file;
 
     snprintf(error_text, PCAP_ERRBUF_SIZE, "OK");
@@ -48,6 +48,23 @@ pcap *pcap_open_offline(const char *filename, char *error_text) {
 		return (NULL);
     }
 
+    unsigned int link_type;
+    fseek(file, PCAP_FILE_HEADER_LENGTH - 4, SEEK_SET);
+    bytes_read = fread(&link_type, 1, sizeof(link_type), file);
+    if (bytes_read != sizeof(link_type)) {
+        snprintf(error_text, PCAP_ERRBUF_SIZE, "Cannot read linktype word");
+        fclose(file);
+        return (NULL);
+    }
+    if (expected_link_type >= 0) {
+        // Check the link type
+        if ((int) link_type != expected_link_type) {
+            snprintf(error_text, PCAP_ERRBUF_SIZE, "This link type is not supported by this decoder");
+            fclose(file);
+            return (NULL);
+        }
+    }
+
     // set the format
     // and seek past file header
     if (MAGIC_NG == magic) {
@@ -61,14 +78,12 @@ pcap *pcap_open_offline(const char *filename, char *error_text) {
 		    return (NULL);
 	    }
         fseek(file, section_length, SEEK_SET);
-        
     } else {
         p.is_ng = 0;
         fseek(file, PCAP_FILE_HEADER_LENGTH, SEEK_SET);
     }
 
     p.file = file;
-	
 	return(&p);
 }
 

pcaplite.h

@@ -8,7 +8,9 @@
 #include <winsock.h>
 #endif
 
-#define PCAP_ERRBUF_SIZE 256
+#define PCAP_ERRBUF_SIZE        (256)
+#define PCAP_LINKTYPE_SOCKETCAN (227)
+#define PCAP_LINKTYPE_ANY       (-1)
 
 struct pcap_pkthdr {
 	struct timeval ts;	/* time stamp */
@@ -23,7 +25,7 @@ struct pcap {
 
 typedef struct pcap pcap_t;
 
-pcap *pcap_open_offline(const char *, char *);
+pcap *pcap_open_offline(const char *, char *, int);
 
 const unsigned char *pcap_next(pcap_t *, struct pcap_pkthdr *);