--- /dev/null
+package edu.uci.iotproject.detection.layer2;
+
+import edu.uci.iotproject.util.PcapPacketUtils;
+import org.pcap4j.core.PcapPacket;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Base class for layer 2 matchers ({@code Layer2SequenceMatcher} and {@code Layer2RangeMatcher}).
+ *
+ * @author Janus Varmarken {@literal <jvarmark@uci.edu>}
+ * @author Rahmadi Trimananda {@literal <rtrimana@uci.edu>}
+ */
+abstract public class Layer2AbstractMatcher {
+
+ /**
+ * Buffer of actual packets seen so far that match the searched range (i.e., constitutes a subsequence).
+ */
+ protected final List<PcapPacket> mMatchedPackets = new ArrayList<>();
+
+ /**
+ * Models the directions of packets. As the sequence matcher assumes that it is only presented
+ * with packet from a single flow (packets exchanged between two devices), we can model the packet directions with a
+ * single bit. We don't have any notion "phone to device" or "device to phone" as we don't know the MAC addresses
+ * of devices in advance during matching.
+ */
+ protected final boolean[] mPacketDirections;
+
+ /**
+ * Create a {@code Layer2AbstractMatcher}.
+ * @param sequence The sequence of the signature.
+ */
+ public Layer2AbstractMatcher(List<PcapPacket> sequence) {
+ mPacketDirections = new boolean[sequence.size()];
+ // Compute packet directions for sequence.
+ for (int i = 0; i < sequence.size(); i++) {
+ if (i == 0) {
+ // No previous packet; boolean parameter is ignored in this special case.
+ mPacketDirections[i] = getPacketDirection(null, true, sequence.get(i));
+ } else {
+ // Base direction marker on direction of previous packet.
+ PcapPacket prevPkt = sequence.get(i-1);
+ boolean prevPktDirection = mPacketDirections[i-1];
+ mPacketDirections[i] = getPacketDirection(prevPkt, prevPktDirection, sequence.get(i));
+ }
+ }
+ }
+
+ /**
+ * Compute the direction of a packet based on the previous packet. If no previous packet is provided, the direction
+ * of {@code currPkt} is {@code true} by definition.
+ * @param prevPkt The previous packet, if any.
+ * @param prevPktDirection The computed direction of the previous packet
+ * @param currPkt The current packet for which the direction is to be determined.
+ * @return The direction of {@code currPkt}.
+ */
+ protected boolean getPacketDirection(PcapPacket prevPkt, boolean prevPktDirection, PcapPacket currPkt) {
+ if (prevPkt == null) {
+ // By definition, use true as direction marker for first packet
+ return true;
+ }
+ if (PcapPacketUtils.getEthSrcAddr(prevPkt).equals(PcapPacketUtils.getEthSrcAddr(currPkt))) {
+ // Current packet goes in same direction as previous packet.
+ return prevPktDirection;
+ } else {
+ // Current packet goes in opposite direction of previous packet.
+ return !prevPktDirection;
+ }
+ }
+
+ /**
+ * See the implementer class for the following method.
+ *
+ * @param packet
+ * @return {@code true} if this {@code Layer2SequenceMatcher} could advance by adding {@code packet} to its set of
+ * matched packets, {@code false} otherwise.
+ */
+ public abstract boolean matchPacket(PcapPacket packet);
+
+ /**
+ * See the implementer class for the following method.
+ */
+ public abstract int getTargetSequencePacketCount();
+
+ public int getMatchedPacketsCount() {
+ return mMatchedPackets.size();
+ }
+
+ public List<PcapPacket> getMatchedPackets() {
+ return mMatchedPackets;
+ }
+
+ /**
+ * Utility for {@code getMatchedPackets().get(getMatchedPackets().size()-1)}.
+ * @return The last matched packet, or {@code null} if no packets have been matched yet.
+ */
+ public PcapPacket getLastPacket() {
+ //return mSequence.size() > 0 ? mSequence.get(mSequence.size()-1) : null;
+ return mMatchedPackets.size() > 0 ? mMatchedPackets.get(mMatchedPackets.size()-1) : null;
+ }
+}
* of {@link #mCluster} and has so far matched {@code j} packets of that particular sequence.
*/
private final Map<Layer2Flow, Layer2SequenceMatcher[][]> mPerFlowSeqMatchers = new HashMap<>();
+ private final Map<Layer2Flow, Layer2RangeMatcher[]> mPerFlowRangeMatcher = new HashMap<>();
private final Function<Layer2Flow, Boolean> mFlowFilter;
+ /**
+ * Specifying range-based instead of conservative exact matching.
+ */
+ private final boolean mRangeBased;
+
+ /**
+ * Epsilon value used by the DBSCAN algorithm; it is used again for range-based matching here.
+ */
+ private final double mEps;
+
/**
* Create a new {@link Layer2ClusterMatcher} that attempts to find occurrences of {@code cluster}'s members.
* @param cluster The sequence mutations that the new {@link Layer2ClusterMatcher} should search for.
*/
- public Layer2ClusterMatcher(List<List<PcapPacket>> cluster) {
+ public Layer2ClusterMatcher(List<List<PcapPacket>> cluster, boolean isRangeBased, double eps) {
// Consider all flows if no flow filter specified.
- this(cluster, flow -> true, false);
+ this(cluster, flow -> true, isRangeBased, eps);
}
/**
* the new flow. This functionality may for example come in handy when one only wants to search
* for matches in the subset of flows that involves a specific (range of) MAC(s).
* @param isRangeBased The boolean that decides if it is range-based vs. strict matching.
+ * @param eps The epsilon value used in the DBSCAN algorithm.
*/
public Layer2ClusterMatcher(List<List<PcapPacket>> cluster, Function<Layer2Flow, Boolean> flowFilter,
- boolean isRangeBased) {
+ boolean isRangeBased, double eps) {
super(cluster, isRangeBased);
mFlowFilter = flowFilter;
+ mRangeBased = isRangeBased;
+ mEps = eps;
}
@Override
public void onNewPacket(Layer2Flow flow, PcapPacket newPacket) {
+ if (mRangeBased) {
+ rangeBasedMatching(flow, newPacket);
+ } else {
+ conservativeMatching(flow, newPacket);
+ }
+ }
+
+ private void conservativeMatching(Layer2Flow flow, PcapPacket newPacket) {
if (mPerFlowSeqMatchers.get(flow) == null) {
// If this is the first time we encounter this flow, we need to set up sequence matchers for it.
// All sequences of the cluster have the same length, so we only need to compute the length of the nested
}
}
+ private void rangeBasedMatching(Layer2Flow flow, PcapPacket newPacket) {
+ // TODO: For range-based matching, we only care about matching a range; therefore it is a matcher array.
+ if (mPerFlowRangeMatcher.get(flow) == null) {
+ // If this is the first time we encounter this flow, we need to set up a sequence matcher.
+ // All sequences of the cluster have the same length, so we only need to compute the length of the
+ // arrays once. We want to make room for a cluster matcher in each state, including the initial empty state
+ // but excluding the final "full match" state (as there is no point in keeping a terminated sequence matcher
+ // around), so the length of the array is simply the sequence length.
+ Layer2RangeMatcher[] matcher = new Layer2RangeMatcher[mCluster.get(0).size()];
+ // Prepare a "state 0" sequence matcher.
+ matcher[0] = new Layer2RangeMatcher(mCluster.get(0), mCluster.get(1), mEps);
+ // Associate the new sequence matcher table with the new flow.
+ mPerFlowRangeMatcher.put(flow, matcher);
+ }
+ // Fetch table that contains sequence matchers for this flow.
+ Layer2RangeMatcher[] matcher = mPerFlowRangeMatcher.get(flow);
+ // Present packet to the sequence matcher.
+ for (int j = matcher.length - 1; j >= 0; j--) {
+ Layer2RangeMatcher sm = matcher[j];
+ if (sm == null) {
+ // There is currently no sequence matcher that has managed to match j packets.
+ continue;
+ }
+ boolean matched = sm.matchPacket(newPacket);
+ if (matched) {
+ if (sm.getMatchedPacketsCount() == sm.getTargetSequencePacketCount()) {
+ // Sequence matcher has a match. Report it to observers.
+ mObservers.forEach(o -> o.onMatch(this, sm.getMatchedPackets()));
+ // Remove the now terminated sequence matcher.
+ matcher[j] = null;
+ } else {
+ // Sequence matcher advanced one step, so move it to its corresponding new position iff the
+ // packet that advanced it has a later timestamp than that of the last matched packet of the
+ // sequence matcher at the new index, if any. In most traces, a small amount of the packets
+ // appear out of order (with regards to their timestamp), which is why this check is required.
+ // Obviously it would not be needed if packets where guaranteed to be processed in timestamp
+ // order here.
+ if (matcher[j+1] == null ||
+ newPacket.getTimestamp().isAfter(matcher[j+1].getLastPacket().getTimestamp())) {
+ matcher[j+1] = sm;
+ }
+ }
+ // We always want to have a sequence matcher in state 0, regardless of if the one that advanced
+ // from state zero completed its matching or if it replaced a different one in state 1 or not.
+ if (sm.getMatchedPacketsCount() == 1) {
+ matcher[j] = new Layer2RangeMatcher(sm.getTargetLowerBound(), sm.getTargetUpperBound(), mEps);
+ }
+ }
+ }
+ }
@Override
protected List<List<PcapPacket>> pruneCluster(List<List<PcapPacket>> cluster) {
--- /dev/null
+package edu.uci.iotproject.detection.layer2;
+
+import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
+import edu.uci.iotproject.util.PcapPacketUtils;
+import org.pcap4j.core.PcapPacket;
+import org.pcap4j.util.MacAddress;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Attempts to detect the presence of a specific packet sequence in the set of packets provided through multiple calls
+ * to {@link #matchPacket(PcapPacket)}, considering only layer 2 information. This class has the same flavor as the
+ * {@link Layer2SequenceMatcher} class.
+ *
+ * @author Janus Varmarken {@literal <jvarmark@uci.edu>}
+ * @author Rahmadi Trimananda {@literal <rtrimana@uci.edu>}
+ */
+public class Layer2RangeMatcher extends Layer2AbstractMatcher {
+ /**
+ * The range this {@link Layer2RangeMatcher} is searching for.
+ */
+ private final List<PcapPacket> mLowerBound;
+ private final List<PcapPacket> mUpperBound;
+ private final double mEps;
+
+ /**
+ * Create a {@code Layer2RangeMatcher}.
+ * @param lowerBound The lower bound of the sequence to match against (search for).
+ * @param upperBound The upper bound of the sequence to match against (search for).
+ * @param eps The epsilon value used in the DBSCAN algorithm.
+ */
+ public Layer2RangeMatcher(List<PcapPacket> lowerBound, List<PcapPacket> upperBound, double eps) {
+ // TODO: Just use the lower bound since both lower and upper bounds' packets essentially have the same direction
+ // TODO: for the same position in the array. Both arrays also have the same length.
+ super(lowerBound);
+ mLowerBound = lowerBound;
+ mUpperBound = upperBound;
+ mEps = eps;
+ }
+
+ /**
+ * Attempt to advance this {@code Layer2RangeMatcher} by matching {@code packet} against the packet that this
+ * {@code Layer2RangeMatcher} expects as the next packet of the sequence it is searching for.
+ * @param packet
+ * @return {@code true} if this {@code Layer2SequenceMatcher} could advance by adding {@code packet} to its set of
+ * matched packets, {@code false} otherwise.
+ */
+ public boolean matchPacket(PcapPacket packet) {
+ if (getMatchedPacketsCount() == getTargetSequencePacketCount()) {
+ // We already matched the entire sequence, so we can't match any more packets.
+ return false;
+ }
+
+ // Verify that new packet pertains to same flow as previously matched packets, if any.
+ if (getMatchedPacketsCount() > 0) {
+ MacAddress pktSrc = PcapPacketUtils.getEthSrcAddr(packet);
+ MacAddress pktDst = PcapPacketUtils.getEthDstAddr(packet);
+ MacAddress earlierPktSrc = PcapPacketUtils.getEthSrcAddr(mMatchedPackets.get(0));
+ MacAddress earlierPktDst = PcapPacketUtils.getEthDstAddr(mMatchedPackets.get(0));
+ if (!(pktSrc.equals(earlierPktSrc) && pktDst.equals(earlierPktDst) ||
+ pktSrc.equals(earlierPktDst) && pktDst.equals(earlierPktSrc))) {
+ return false;
+ }
+ }
+
+ // Get representative of the packet we expect to match next.
+ PcapPacket expectedLowerBound = mLowerBound.get(mMatchedPackets.size());
+ PcapPacket expectedUpperBound = mUpperBound.get(mMatchedPackets.size());
+ // First verify if the received packet has the length we're looking for (the length should be within the range).
+// if (expectedLowerBound.getOriginalLength() - (int) mEps <= packet.getOriginalLength() &&
+// packet.getOriginalLength() <= expectedUpperBound.getOriginalLength() + (int) mEps){
+ if (expectedLowerBound.getOriginalLength() - (int) mEps <= packet.getOriginalLength() &&
+ packet.getOriginalLength() <= expectedUpperBound.getOriginalLength() + (int) mEps){
+ // If this is the first packet, we only need to verify that its length is correct. Time constraints are
+ // obviously satisfied as there are no previous packets. Furthermore, direction matches by definition as we
+ // don't know the MAC of the device (or phone) in advance, so we can't enforce a rule saying "first packet
+ // must originate from this particular MAC".
+ if (getMatchedPacketsCount() == 0) {
+ // Store packet as matched and advance.
+ mMatchedPackets.add(packet);
+ return true;
+ }
+ // Check if direction of packet matches expected direction.
+ boolean actualDirection = getPacketDirection(mMatchedPackets.get(getMatchedPacketsCount()-1),
+ mPacketDirections[getMatchedPacketsCount()-1], packet);
+ boolean expectedDirection = mPacketDirections[getMatchedPacketsCount()];
+ if (actualDirection != expectedDirection) {
+ return false;
+ }
+ // Next apply timing constraints:
+ // 1: to be a match, the packet must have a later timestamp than any other packet currently matched
+ // 2: does adding the packet cause the max allowed time between first packet and last packet to be exceeded?
+ if (!packet.getTimestamp().isAfter(mMatchedPackets.get(getMatchedPacketsCount()-1).getTimestamp())) {
+ return false;
+ }
+ if (packet.getTimestamp().isAfter(mMatchedPackets.get(0).getTimestamp().
+ plusMillis(TriggerTrafficExtractor.INCLUSION_WINDOW_MILLIS))) {
+ return false;
+ }
+ // If we made it here, it means that this packet has the expected length, direction, and obeys the timing
+ // constraints, so we store it and advance.
+ mMatchedPackets.add(packet);
+ if (mMatchedPackets.size() == mLowerBound.size()) {
+ // TODO report (to observers?) that we are done?
+ }
+ return true;
+ }
+ return false;
+ }
+
+ public int getTargetSequencePacketCount() {
+ return mLowerBound.size();
+ }
+
+ public List<PcapPacket> getTargetLowerBound() {
+ return mLowerBound;
+ }
+
+ public List<PcapPacket> getTargetUpperBound() {
+ return mLowerBound;
+ }
+}
* @author Janus Varmarken {@literal <jvarmark@uci.edu>}
* @author Rahmadi Trimananda {@literal <rtrimana@uci.edu>}
*/
-public class Layer2SequenceMatcher {
+public class Layer2SequenceMatcher extends Layer2AbstractMatcher {
/**
* The sequence this {@link Layer2SequenceMatcher} is searching for.
*/
private final List<PcapPacket> mSequence;
- /**
- * Buffer of actual packets seen so far that match the searched sequence (i.e., constitutes a subsequence of the
- * searched sequence).
- */
- private final List<PcapPacket> mMatchedPackets = new ArrayList<>();
-
- /**
- * Models the directions of packets in {@link #mSequence}. As the sequence matcher assumes that it is only presented
- * with packet from a single flow (packets exchanged between two devices), we can model the packet directions with a
- * single bit. We don't have any notion "phone to device" or "device to phone" as we don't know the MAC addresses
- * of devices in advance during matching.
- */
- private final boolean[] mPacketDirections;
-
/**
* Create a {@code Layer2SequenceMatcher}.
* @param sequence The sequence to match against (search for).
*/
public Layer2SequenceMatcher(List<PcapPacket> sequence) {
+ super(sequence);
mSequence = sequence;
// Compute packet directions for sequence.
- mPacketDirections = new boolean[sequence.size()];
for (int i = 0; i < sequence.size(); i++) {
if (i == 0) {
// No previous packet; boolean parameter is ignored in this special case.
return false;
}
- public int getMatchedPacketsCount() {
- return mMatchedPackets.size();
- }
-
public int getTargetSequencePacketCount() {
return mSequence.size();
}
return mSequence;
}
- public List<PcapPacket> getMatchedPackets() {
- return mMatchedPackets;
- }
-
- /**
- * Utility for {@code getMatchedPackets().get(getMatchedPackets().size()-1)}.
- * @return The last matched packet, or {@code null} if no packets have been matched yet.
- */
- public PcapPacket getLastPacket() {
- return mSequence.size() > 0 ? mSequence.get(mSequence.size()-1) : null;
- }
-
- /**
- * Compute the direction of a packet based on the previous packet. If no previous packet is provided, the direction
- * of {@code currPkt} is {@code true} by definition.
- * @param prevPkt The previous packet, if any.
- * @param prevPktDirection The computed direction of the previous packet
- * @param currPkt The current packet for which the direction is to be determined.
- * @return The direction of {@code currPkt}.
- */
- private boolean getPacketDirection(PcapPacket prevPkt, boolean prevPktDirection, PcapPacket currPkt) {
- if (prevPkt == null) {
- // By definition, use true as direction marker for first packet
- return true;
- }
- if (PcapPacketUtils.getEthSrcAddr(prevPkt).equals(PcapPacketUtils.getEthSrcAddr(currPkt))) {
- // Current packet goes in same direction as previous packet.
- return prevPktDirection;
- } else {
- // Current packet goes in opposite direction of previous packet.
- return !prevPktDirection;
- }
- }
-
-
}
import edu.uci.iotproject.io.PrintWriterUtils;
import edu.uci.iotproject.trafficreassembly.layer2.Layer2Flow;
import edu.uci.iotproject.trafficreassembly.layer2.Layer2FlowReassembler;
+import edu.uci.iotproject.util.PcapPacketUtils;
import edu.uci.iotproject.util.PrintUtils;
import org.jgrapht.GraphPath;
import org.jgrapht.alg.shortestpath.DijkstraShortestPath;
public static void main(String[] args) throws PcapNativeException, NotOpenException, IOException {
// Parse required parameters.
- if (args.length < 5) {
- String errMsg = String.format("Usage: %s inputPcapFile onSignatureFile offSignatureFile resultsFile" +
+ if (args.length < 7) {
+ String errMsg = String.format("Usage: %s inputPcapFile onAnalysisFile offAnalysisFile onSignatureFile offSignatureFile resultsFile" +
"\n inputPcapFile: the target of the detection" +
+ "\n onAnalysisFile: the file that contains the ON clusters analysis" +
+ "\n offAnalysisFile: the file that contains the OFF clusters analysis" +
"\n onSignatureFile: the file that contains the ON signature to search for" +
"\n offSignatureFile: the file that contains the OFF signature to search for" +
"\n resultsFile: where to write the results of the detection" +
return;
}
final String pcapFile = args[0];
- final String onSignatureFile = args[1];
- final String offSignatureFile = args[2];
- final String resultsFile = args[3];
- final int signatureDuration = Integer.parseInt(args[4]);
+ final String onClusterAnalysisFile = args[1];
+ final String offClusterAnalysisFile = args[2];
+ final String onSignatureFile = args[3];
+ final String offSignatureFile = args[4];
+ final String resultsFile = args[5];
+ final int signatureDuration = Integer.parseInt(args[6]);
// Parse optional parameters.
List<Function<Layer2Flow, Boolean>> onSignatureMacFilters = null, offSignatureMacFilters = null;
- final int optParamsStartIdx = 5;
+ final int optParamsStartIdx = 7;
if (args.length > optParamsStartIdx) {
for (int i = optParamsStartIdx; i < args.length; i++) {
if (args[i].equalsIgnoreCase("-onMacFilters")) {
// Include metadata as comments at the top
PrintWriterUtils.println("# Detection results for:", resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
PrintWriterUtils.println("# - inputPcapFile: " + pcapFile, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
+ PrintWriterUtils.println("# - onAnalysisFile: " + onClusterAnalysisFile, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
+ PrintWriterUtils.println("# - offAnalysisFile: " + offClusterAnalysisFile, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
PrintWriterUtils.println("# - onSignatureFile: " + onSignatureFile, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
PrintWriterUtils.println("# - offSignatureFile: " + offSignatureFile, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
resultsWriter.flush();
- // TODO: IMPLEMENT THE RANGE-BASED DETECTION HERE
- boolean isRangeBased = true;
-
+ double eps = 10.0;
// Create signature detectors and add observers that output their detected events.
List<List<List<PcapPacket>>> onSignature = PrintUtils.deserializeFromFile(onSignatureFile);
List<List<List<PcapPacket>>> offSignature = PrintUtils.deserializeFromFile(offSignatureFile);
+ // Load signature analyses
+ List<List<List<PcapPacket>>> onClusterAnalysis = PrintUtils.deserializeFromFile(onClusterAnalysisFile);
+ List<List<List<PcapPacket>>> offClusterAnalysis = PrintUtils.deserializeFromFile(offClusterAnalysisFile);
+ // TODO: FOR NOW WE DECIDE PER SIGNATURE AND THEN WE OR THE BOOLEANS
+ // TODO: SINCE WE ONLY HAVE 2 SIGNATURES FOR NOW (ON AND OFF), THEN IT IS USUALLY EITHER RANGE-BASED OR
+ // TODO: STRICT MATCHING
+ // Check if we should use range-based matching
+// boolean isRangeBasedForOn = PcapPacketUtils.isRangeBasedMatching(onSignature, eps, offSignature);
+// boolean isRangeBasedForOff = PcapPacketUtils.isRangeBasedMatching(offSignature, eps, onSignature);
+ // TODO: WE DON'T DO RANGE-BASED FOR NOW BECAUSE THE RESULTS ARE TERRIBLE FOR LAYER 2 MATCHING
+ // TODO: THIS WOULD ONLY WORK FOR SIGNATURES LONGER THAN 2 PACKETS
+ boolean isRangeBasedForOn = false;
+ boolean isRangeBasedForOff = false;
+ // Update the signature with ranges if it is range-based
+ if (isRangeBasedForOn && isRangeBasedForOff) {
+ onSignature = PcapPacketUtils.useRangeBasedMatching(onSignature, onClusterAnalysis);
+ offSignature = PcapPacketUtils.useRangeBasedMatching(offSignature, offClusterAnalysis);
+ }
Layer2SignatureDetector onDetector = onSignatureMacFilters == null ?
- new Layer2SignatureDetector(onSignature) :
- new Layer2SignatureDetector(onSignature, onSignatureMacFilters, signatureDuration, isRangeBased);
+ new Layer2SignatureDetector(onSignature, isRangeBasedForOn, eps) :
+ new Layer2SignatureDetector(onSignature, onSignatureMacFilters, signatureDuration, isRangeBasedForOn, eps);
Layer2SignatureDetector offDetector = offSignatureMacFilters == null ?
- new Layer2SignatureDetector(offSignature) :
- new Layer2SignatureDetector(offSignature, offSignatureMacFilters, signatureDuration, isRangeBased);
+ new Layer2SignatureDetector(offSignature, isRangeBasedForOff, eps) :
+ new Layer2SignatureDetector(offSignature, offSignatureMacFilters, signatureDuration, isRangeBasedForOff, eps);
onDetector.addObserver((signature, match) -> {
UserAction event = new UserAction(UserAction.Type.TOGGLE_ON, match.get(0).get(0).getTimestamp());
PrintWriterUtils.println(event, resultsWriter, DUPLICATE_OUTPUT_TO_STD_OUT);
private int mInclusionTimeMillis;
- public Layer2SignatureDetector(List<List<List<PcapPacket>>> searchedSignature) {
- this(searchedSignature, null, 0, false);
+ public Layer2SignatureDetector(List<List<List<PcapPacket>>> searchedSignature, boolean isRangeBased, double eps) {
+ this(searchedSignature, null, 0, isRangeBased, eps);
}
public Layer2SignatureDetector(List<List<List<PcapPacket>>> searchedSignature, List<Function<Layer2Flow,
- Boolean>> flowFilters, int inclusionTimeMillis, boolean isRangeBased) {
+ Boolean>> flowFilters, int inclusionTimeMillis, boolean isRangeBased, double eps) {
if (flowFilters != null && flowFilters.size() != searchedSignature.size()) {
- throw new IllegalArgumentException("If flow filters are used, there must be a flow filter for each cluster of the signature.");
+ throw new IllegalArgumentException("If flow filters are used, there must be a flow filter for each cluster " +
+ "of the signature.");
}
mSignature = Collections.unmodifiableList(searchedSignature);
List<Layer2ClusterMatcher> clusterMatchers = new ArrayList<>();
for (int i = 0; i < mSignature.size(); i++) {
List<List<PcapPacket>> cluster = mSignature.get(i);
Layer2ClusterMatcher clusterMatcher = flowFilters == null ?
- new Layer2ClusterMatcher(cluster) : new Layer2ClusterMatcher(cluster, flowFilters.get(i), isRangeBased);
+ new Layer2ClusterMatcher(cluster, isRangeBased, eps) :
+ new Layer2ClusterMatcher(cluster, flowFilters.get(i), isRangeBased, eps);
clusterMatcher.addObserver(this);
clusterMatchers.add(clusterMatcher);
}
*/
private final String mRouterWanIp;
- /**
- * Range-based vs. strict matching.
- */
- private final boolean mRangeBased;
-
/**
* Epsilon value used by the DBSCAN algorithm; it is used again for range-based matching here.
*/
* @param cluster The cluster that traffic is matched against.
* @param routerWanIp The router's WAN IP if examining traffic captured at the ISP's point of view (used for
* determining the direction of packets).
+ * @param eps The epsilon value used in the DBSCAN algorithm.
* @param isRangeBased The boolean that decides if it is range-based vs. strict matching.
* @param detectionObservers Client code that wants to get notified whenever the {@link Layer3ClusterMatcher} detects that
* (a subset of) the examined traffic is similar to the traffic that makes up
* on in favor of performance. However, it is only run once (at instantiation), so the overhead may be warranted
* in order to ensure correctness, especially during the development/debugging phase.
*/
- mRangeBased = isRangeBased;
- if (!mRangeBased) { // Only when it is not range-based
+ if (!isRangeBased) { // Only when it is not range-based
if (mCluster.stream().
anyMatch(inner -> !Arrays.equals(mClusterMemberDirections, getPacketDirections(inner, null)))) {
throw new IllegalArgumentException(
--- /dev/null
+package edu.uci.iotproject.detection.layer3;
+
+import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
+import edu.uci.iotproject.analysis.UserAction;
+import edu.uci.iotproject.detection.AbstractClusterMatcher;
+import edu.uci.iotproject.detection.ClusterMatcherObserver;
+import edu.uci.iotproject.io.PcapHandleReader;
+import edu.uci.iotproject.util.PcapPacketUtils;
+import edu.uci.iotproject.util.PrintUtils;
+import org.apache.commons.math3.distribution.AbstractRealDistribution;
+import org.apache.commons.math3.distribution.NormalDistribution;
+import org.jgrapht.GraphPath;
+import org.jgrapht.alg.shortestpath.DijkstraShortestPath;
+import org.jgrapht.graph.DefaultWeightedEdge;
+import org.jgrapht.graph.SimpleDirectedWeightedGraph;
+import org.pcap4j.core.*;
+
+import java.time.Duration;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+import java.time.format.FormatStyle;
+import java.util.*;
+import java.util.function.Consumer;
+
+/**
+ * Detects an event signature that spans one or multiple TCP connections.
+ *
+ * @author Janus Varmarken {@literal <jvarmark@uci.edu>}
+ * @author Rahmadi Trimananda {@literal <rtrimana@uci.edu>}
+ */
+public class Layer3SignatureDetector implements PacketListener, ClusterMatcherObserver {
+
+ // Test client
+ public static void main(String[] args) throws PcapNativeException, NotOpenException {
+// if (args.length < 3) {
+// String errMsg = String.format("Usage: %s inputPcapFile onSignatureFile offSignatureFile",
+// SignatureDetector.class.getSimpleName());
+// System.out.println(errMsg);
+// return;
+// }
+// final String inputPcapFile = args[0];
+// final String onSignatureFile = args[1];
+// final String offSignatureFile = args[2];
+
+ String path = "/scratch/July-2018"; // Rahmadi
+// String path = "/Users/varmarken/temp/UCI IoT Project/experiments"; // Janus
+// String path = "/home/jvarmark/iot_project/datasets"; // Hera (server)
+// String path = "/raid/varmarken/iot_project/datasets"; // Zeus (server)
+
+ // No activity test
+ //final String inputPcapFile = path + "/evaluation/no-activity/no-activity.wlan1.pcap";
+
+ // D-Link Siren experiment
+// final String inputPcapFile = path + "/evaluation/dlink-siren/dlink-siren.data.wlan1.pcap";
+// final String inputPcapFile = path + "/evaluation/dlink-siren/dlink-siren.eth0.local.pcap";
+ // D-Link Siren DEVICE signatures
+// final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-device.sig";
+// final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-device.sig";
+ // D-Link Siren PHONE signatures
+// final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-phone.sig";
+// final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-phone.sig";
+ // TODO: EXPERIMENT - November 19, 2018
+ // Hue Bulb experiment
+// final String inputPcapFile = path + "/2018-08/hue-bulb/hue-bulb.wlan1.local.pcap";
+ // Hue Bulb PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/hue-bulb/signatures/hue-bulb-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/hue-bulb/signatures/hue-bulb-offSignature-phone-side.sig";
+
+ /*
+ // Kwikset Doorlock Sep 12 experiment
+// final String inputPcapFile = path + "/evaluation/kwikset-doorlock/kwikset-doorlock.data.wlan1.pcap";
+ final String inputPcapFile = path + "/evaluation/kwikset-doorlock/kwikset-doorlock.data.eth0.pcap";
+// // Kwikset Doorlock PHONE signatures
+ final String onSignatureFile = path + "/2018-08/kwikset-doorlock/onSignature-Kwikset-Doorlock-phone-new.sig";
+ final String offSignatureFile = path + "/2018-08/kwikset-doorlock/offSignature-Kwikset-Doorlock-phone-new.sig";
+ */
+
+ // D-Link Plug experiment
+ //final String inputPcapFile = path + "/evaluation/dlink/dlink-plug.data.wlan1.pcap";
+// final String inputPcapFile = path + "/evaluation/dlink/dlink-plug.data.eth0.pcap";
+
+ // D-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/2018-07/dlink/onSignature-DLink-Plug-device.sig";
+// final String offSignatureFile = path + "/2018-07/dlink/offSignature-DLink-Plug-device.sig";
+ // D-Link Plug PHONE signatures
+// final String onSignatureFile = path + "/2018-07/dlink/onSignature-DLink-Plug-phone.sig";
+// final String offSignatureFile = path + "/2018-07/dlink/offSignature-DLink-Plug-phone.sig";
+
+ // TODO: The following are negative tests against the PCAP file from UNSW
+// final String inputPcapFile = path + "/UNSW/16-10-04.pcap"; // TODO: Seems to be broken! Zero-payload!
+// final String inputPcapFile = path + "/UNSW/16-10-12.pcap";
+
+// final String inputPcapFile = path + "/UNSW/16-09-28.pcap"; // TODO: Seems to be broken! Zero-payload!
+// final String inputPcapFile = path + "/UNSW/16-10-02.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-03.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-04-a.pcap"; // TODO: Seems to be broken! Zero-payload!
+// final String inputPcapFile = path + "/UNSW/16-10-04-b.pcap"; // TODO: Seems to be broken! Zero-payload!
+// final String inputPcapFile = path + "/UNSW/16-10-07.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-08.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-09.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-10.pcap"; // TODO: Seems to be broken!
+// final String inputPcapFile = path + "/UNSW/16-10-11.pcap"; // TODO: Seems to be broken!
+ // TODO: The following one is very long!!! - Split into smaller files!
+// final String inputPcapFile = path + "/UNSW/16-10-12-a.pcap";
+// final String inputPcapFile = path + "/UNSW/16-10-12-b.pcap";
+// final String inputPcapFile = path + "/UNSW/16-10-12-c.pcap";
+// final String inputPcapFile = path + "/UNSW/16-10-12-d.pcap";
+
+// final String inputPcapFile = path + "/UNSW/16-09-23.pcap";
+// final String inputPcapFile = path + "/UNSW/16-09-24.pcap";
+// final String inputPcapFile = path + "/UNSW/16-09-25.pcap";
+// final String inputPcapFile = path + "/UNSW/16-09-26.pcap";
+// final String inputPcapFile = path + "/UNSW/16-09-27.pcap";
+// final String inputPcapFile = path + "/UNSW/16-09-29.pcap";
+// final String inputPcapFile = path + "/UNSW/16-10-01.pcap";
+// final String inputPcapFile = path + "/UNSW/16-10-06.pcap";
+ // Negative test: dataset from UNB
+// final String inputPcapFile = path + "/evaluation/negative-datasets/UNB/Monday-WorkingHours_one-local-endpoint-001.pcap";
+
+ // TODO: The following are tests for signatures against training data
+
+ // TODO: D-LINK PLUG experiment
+// final String inputPcapFile = path + "/training/dlink-plug/wlan1/dlink-plug.wlan1.local.pcap";
+ // D-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-offSignature-device-side.sig";
+ // D-Link Plug PHONE signatures
+// final String onSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-offSignature-phone-side.sig";
+
+ // TODO: EXPERIMENT - November 7, 2018
+ // D-Link Plug experiment
+// //final String inputPcapFile = path + "/experimental_result/standalone/dlink-plug/wlan1/dlink-plug.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/dlink-plug/wlan1/dlink-plug.wlan1.detection.pcap";
+// //final String inputPcapFile = path + "/experimental_result/smarthome/dlink-plug/eth0/dlink-plug.eth0.detection.pcap";
+// // D-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-offSignature-device-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-onClusters-device-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-offClusters-device-side.cls";
+ // D-Link Plug PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-offClusters-phone-side.cls";
+
+ // TODO: EXPERIMENT - November 9, 2018
+ // TODO: D-LINK SIREN experiment
+ //final String inputPcapFile = path + "/experimental_result/standalone/dlink-siren/wlan1/dlink-siren.wlan1.local.pcap";
+ //final String inputPcapFile = path + "/experimental_result/smarthome/dlink-siren/wlan1/dlink-siren.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/dlink-siren/eth0/dlink-siren.eth0.detection.pcap";
+// // D-Link Siren DEVICE signatures
+// // TODO: The device signature does not have pairs---only one packet which is 216, so we don't consider this as a signature
+// final String onSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-offSignature-device-side.sig";
+ // D-Link Siren PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-offSignature-phone-side.sig";
+// final String onSignatureFile = path + "/training/signatures/dlink-siren/dlink-siren-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/signatures/dlink-siren/dlink-siren-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-siren/analysis/dlink-siren-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-siren/analysis/dlink-siren-offClusters-phone-side.cls";
+
+ // TODO: TP-LINK PLUG experiment
+//// final String inputPcapFile = path + "/training/tplink-plug/wlan1/tplink-plug.wlan1.local.pcap";
+//// final String inputPcapFile = path + "/experimental_result/wifi-Sniffer/tests2/airtool_2019-01-04_11.08.45.AM.pcap";
+// final String inputPcapFile = path + "/experimental_result/wifi-Sniffer/tests2/command-frames-only.pcap";
+// // TP-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/training/tplink-plug/signatures/tplink-plug-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/training/tplink-plug/signatures/tplink-plug-offSignature-device-side.sig";
+ // TODO: EXPERIMENT - November 8, 2018
+ // TP-Link Plug experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/tplink-plug/wlan1/tplink-plug.wlan1.local.pcap";
+//// final String inputPcapFile = path + "/experimental_result/standalone/tplink-plug/eth0/tplink-plug.eth0.local.pcap";
+//// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-plug/wlan1/tplink-plug.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-plug/eth0/tplink-plug.eth0.detection.pcap";
+//// // TP-Link Plug DEVICE signatures
+//// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-device-side.sig";
+//// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-device-side.sig";
+// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-device-side-outbound.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-device-side-outbound.sig";
+// // TP-Link Plug PHONE signatures
+//// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-phone-side.sig";
+//// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-phone-side.sig";
+// // TP-Link Plug cluster analyses
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/tplink-plug/analysis/tplink-plug-onClusters.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/tplink-plug/analysis/tplink-plug-offClusters.cls";
+
+ // Amazon Alexa experiment
+// final String inputPcapFile = path + "/training/amazon-alexa/wlan1/alexa2.wlan1.local.pcap";
+// // TP-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/training/amazon-alexa/signatures/amazon-alexa-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/training/amazon-alexa/signatures/amazon-alexa-offSignature-device-side.sig";
+
+ // TODO: KWIKSET DOORLOCK Sep 12 experiment
+// final String inputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset3.wlan1.local.pcap";
+// // Kwikset Doorlock PHONE signatures
+// final String onSignatureFile = path + "/2018-08/kwikset-doorlock/onSignature-Kwikset-Doorlock-phone.sig";
+// final String offSignatureFile = path + "/2018-08/kwikset-doorlock/offSignature-Kwikset-Doorlock-phone.sig";
+ // TODO: EXPERIMENT - November 10, 2018
+ // Kwikset Door lock experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/kwikset-doorlock/wlan1/kwikset-doorlock.wlan1.local.pcap";
+ //final String inputPcapFile = path + "/experimental_result/smarthome/kwikset-doorlock/wlan1/kwikset-doorlock.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/kwikset-doorlock/eth0/kwikset-doorlock.eth0.detection.pcap";
+// // Kwikset Door lock PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/kwikset-doorlock/signatures/kwikset-doorlock-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/kwikset-doorlock/signatures/kwikset-doorlock-offSignature-phone-side.sig";
+//// final String onSignatureFile = path + "/training/signatures/kwikset-doorlock/kwikset-doorlock-onSignature-phone-side.sig";
+//// final String offSignatureFile = path + "/training/signatures/kwikset-doorlock/kwikset-doorlock-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/kwikset-doorlock/analysis/kwikset-doorlock-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/kwikset-doorlock/analysis/kwikset-doorlock-offClusters-phone-side.cls";
+
+ // TODO: SMARTTHINGS PLUG experiment
+// final String inputPcapFile = path + "/training/st-plug/wlan1/st-plug.wlan1.local.pcap";
+// // SmartThings Plug DEVICE signatures
+// //final String onSignatureFile = path + "/training/st-plug/signatures/st-plug-onSignature-device-side.sig";
+// //final String offSignatureFile = path + "/training/st-plug/signatures/st-plug-offSignature-device-side.sig";
+// // SmartThings Plug PHONE signatures
+// final String onSignatureFile = path + "/training/st-plug/signatures/st-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/st-plug/signatures/st-plug-offSignature-phone-side.sig";
+ // TODO: EXPERIMENT - November 12, 2018
+ // SmartThings Plug experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/st-plug/wlan1/st-plug.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/st-plug/eth0/st-plug.eth0.local.pcap";
+// //final String inputPcapFile = path + "/experimental_result/smarthome/st-plug/wlan1/st-plug.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/st-plug/eth0/st-plug.eth0.detection.pcap";
+//// // SmartThings Plug PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/st-plug/signatures/st-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/st-plug/signatures/st-plug-offSignature-phone-side.sig";
+// final String onSignatureFile = path + "/training/signatures/st-plug/st-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/signatures/st-plug/st-plug-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/st-plug/analysis/st-plug-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/st-plug/analysis/st-plug-offClusters-phone-side.cls";
+
+ // TODO: ARLO CAMERA experiment
+// final String inputPcapFile = path + "/training/arlo-camera/wlan1/arlo-camera.wlan1.local.pcap";
+//// // TP-Link Plug DEVICE signatures
+// final String onSignatureFile = path + "/training/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig";
+ // TODO: EXPERIMENT - November 13, 2018
+ // Arlo Camera experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/arlo-camera/wlan1/arlo-camera.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/arlo-camera/eth0/arlo-camera.eth0.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/arlo-camera/wlan1/arlo-camera.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/arlo-camera/eth0/arlo-camera.eth0.detection.pcap";
+// final String inputPcapFile = path + "/training/arlo-camera/eth0/arlo-camera.eth0.local.pcap";
+ // Arlo Camera PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig";
+// final String onSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig.complete";
+// final String offSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig.complete";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/arlo-camera/analysis/arlo-camera-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/arlo-camera/analysis/arlo-camera-offClusters-phone-side.cls";
+
+ // TODO: NEST THERMOSTAT experiment
+// final String inputPcapFile = path + "/training/nest-thermostat/wlan1/nest-thermostat.wlan1.local.pcap";
+// // Nest Thermostat DEVICE signatures
+//// final String onSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-onSignature-device-side.sig";
+//// final String offSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-offSignature-device-side.sig";
+// // Nest Thermostat PHONE signatures
+// final String onSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-offSignature-phone-side.sig";
+// // TODO: EXPERIMENT - November 15, 2018
+ // Nest Thermostat experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/nest-thermostat/wlan1/nest-thermostat.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/nest-thermostat/eth0/nest-thermostat.eth0.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/nest-thermostat/wlan1/nest-thermostat.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/nest-thermostat/eth0/nest-thermostat.eth0.detection.pcap";
+//// // Nest Thermostat PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/nest-thermostat/signatures/nest-thermostat-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/nest-thermostat/signatures/nest-thermostat-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/nest-thermostat/analysis/nest-thermostat-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/nest-thermostat/analysis/nest-thermostat-offClusters-phone-side.cls";
+
+ // TODO: EXPERIMENT - January 9, 2018
+ // TODO: BLOSSOM SPRINKLER experiment
+ // Blossom Sprinkler experiment
+// //final String inputPcapFile = path + "/training/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.local.pcap";
+// final String inputPcapFile = path + "/2018-08/blossom/blossom.wlan1.local.pcap";
+// //final String inputPcapFile = path + "/training/blossom-sprinkler/eth0/blossom-sprinkler.eth0.local.pcap";
+// // Blossom Sprinkler DEVICE signatures
+// final String onSignatureFile = path + "/training/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/training/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-device-side.sig";
+
+// final String inputPcapFile = path + "/experimental_result/standalone/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.local.pcap";
+ final String inputPcapFile = path + "/experimental_result/smarthome/blossom-sprinkler/eth0/blossom-sprinkler.eth0.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.detection.pcap";
+ // Blossom Sprinkler DEVICE signatures
+ final String onSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-device-side.sig";
+ final String offSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-device-side.sig";
+ final String onClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-onClusters-device-side.cls";
+ final String offClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-offClusters-device-side.cls";
+ // Blossom Sprinkler PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-offClusters-phone-side.cls";
+
+ // LiFX Bulb experiment
+// final String inputPcapFile = path + "/training/lifx-bulb/wlan1/lifx-bulb.wlan1.local.pcap";
+// // LiFX Bulb DEVICE signatures
+// final String onSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-onSignature-device-side.sig";
+// final String offSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-offSignature-device-side.sig";
+ // LiFX Bulb PHONE signatures
+// final String onSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-offSignature-phone-side.sig";
+
+ /*
+ // Hue Bulb experiment
+ final String inputPcapFile = path + "/training/hue-bulb/wlan1/hue-bulb.wlan1.local.pcap";
+ // Hue Bulb PHONE signatures
+ final String onSignatureFile = path + "/training/hue-bulb/signatures/hue-bulb-onSignature-phone-side.sig";
+ final String offSignatureFile = path + "/training/hue-bulb/signatures/hue-bulb-offSignature-phone-side.sig";
+ */
+
+ // TODO: TP-LINK BULB experiment
+// final String inputPcapFile = path + "/training/tplink-bulb/wlan1/tplink-bulb.wlan1.local.pcap";
+// // TP-Link Bulb PHONE signatures
+// final String onSignatureFile = path + "/training/tplink-bulb/signatures/tplink-bulb-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/training/tplink-bulb/signatures/tplink-bulb-offSignature-phone-side.sig";
+ // TODO: EXPERIMENT - November 16, 2018
+ // TP-Link Bulb experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/tplink-bulb/wlan1/tplink-bulb.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/tplink-bulb/eth0/tplink-bulb.eth0.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-bulb/wlan1/tplink-bulb.wlan1.detection.pcap";
+//// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-bulb/eth0/tplink-bulb.eth0.detection.pcap";
+// // TP-Link Bulb PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/tplink-bulb/signatures/tplink-bulb-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/tplink-bulb/signatures/tplink-bulb-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/tplink-bulb/analysis/tplink-bulb-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/tplink-bulb/analysis/tplink-bulb-offClusters-phone-side.cls";
+
+ // TODO: EXPERIMENT - November 20, 2018
+ // TODO: WEMO PLUG experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/wemo-plug/wlan1/wemo-plug.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/wemo-plug/eth0/wemo-plug.eth0.local.pcap";
+ // TODO: WE HAVE 4 ADDITIONAL EVENTS (TRIGGERED MANUALLY), SO WE JUST IGNORE THEM BECAUSE THEY HAPPENED BEFORE
+ // TODO: THE ACTUAL TRIGGERS
+// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-plug/wlan1/wemo-plug.wlan1.detection.pcap";
+//// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-plug/eth0/wemo-plug.eth0.detection.pcap";
+// // WeMo Plug PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/wemo-plug/signatures/wemo-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/wemo-plug/signatures/wemo-plug-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/wemo-plug/analysis/wemo-plug-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/wemo-plug/analysis/wemo-plug-offClusters-phone-side.cls";
+
+ // TODO: EXPERIMENT - November 21, 2018
+ // TODO: WEMO INSIGHT Plug experiment
+// final String inputPcapFile = path + "/experimental_result/standalone/wemo-insight-plug/wlan1/wemo-insight-plug.wlan1.local.pcap";
+// final String inputPcapFile = path + "/experimental_result/standalone/wemo-insight-plug/eth0/wemo-insight-plug.eth0.local.pcap";
+ // TODO: WE HAVE 1 ADDITIONAL EVENT (FROM WEMO PLUG)
+// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-insight-plug/wlan1/wemo-insight-plug.wlan1.detection.pcap";
+// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-insight-plug/eth0/wemo-insight-plug.eth0.detection.pcap";
+ // WeMo Insight Plug PHONE signatures
+// final String onSignatureFile = path + "/experimental_result/standalone/wemo-insight-plug/signatures/wemo-insight-plug-onSignature-phone-side.sig";
+// final String offSignatureFile = path + "/experimental_result/standalone/wemo-insight-plug/signatures/wemo-insight-plug-offSignature-phone-side.sig";
+// final String onClusterAnalysisFile = path + "/experimental_result/standalone/wemo-insight-plug/analysis/wemo-insight-plug-onClusters-phone-side.cls";
+// final String offClusterAnalysisFile = path + "/experimental_result/standalone/wemo-insight-plug/analysis/wemo-insight-plug-offClusters-phone-side.cls";
+
+ // Output file names used (to make it easy to catch if one forgets to change them)
+ System.out.println("ON signature file in use is " + onSignatureFile);
+ System.out.println("OFF signature file in use is " + offSignatureFile);
+ System.out.println("PCAP file that is the target of detection is " + inputPcapFile);
+
+ // Specify epsilon
+ // TODO: This would be specified through command line option
+ double eps = 10.0;
+ // Load signatures
+ List<List<List<PcapPacket>>> onSignature = PrintUtils.deserializeFromFile(onSignatureFile);
+ List<List<List<PcapPacket>>> offSignature = PrintUtils.deserializeFromFile(offSignatureFile);
+ // Load signature analyses
+ List<List<List<PcapPacket>>> onClusterAnalysis = PrintUtils.deserializeFromFile(onClusterAnalysisFile);
+ List<List<List<PcapPacket>>> offClusterAnalysis = PrintUtils.deserializeFromFile(offClusterAnalysisFile);
+
+ // TODO: FOR NOW WE DECIDE PER SIGNATURE AND THEN WE OR THE BOOLEANS
+ // TODO: SINCE WE ONLY HAVE 2 SIGNATURES FOR NOW (ON AND OFF), THEN IT IS USUALLY EITHER RANGE-BASED OR
+ // TODO: STRICT MATCHING
+ // Check if we should use range-based matching
+ boolean isRangeBasedForOn = PcapPacketUtils.isRangeBasedMatching(onSignature, eps, offSignature);
+ boolean isRangeBasedForOff = PcapPacketUtils.isRangeBasedMatching(offSignature, eps, onSignature);
+ // Update the signature with ranges if it is range-based
+ if (isRangeBasedForOn && isRangeBasedForOff) {
+ onSignature = PcapPacketUtils.useRangeBasedMatching(onSignature, onClusterAnalysis);
+ offSignature = PcapPacketUtils.useRangeBasedMatching(offSignature, offClusterAnalysis);
+ }
+
+ // WAN
+ SignatureDetector onDetector = new SignatureDetector(onSignature, "128.195.205.105",
+ 0, isRangeBasedForOn, eps);
+ SignatureDetector offDetector = new SignatureDetector(offSignature, "128.195.205.105",
+ 0, isRangeBasedForOff, eps);
+
+ final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).
+ withLocale(Locale.US).withZone(ZoneId.of("America/Los_Angeles"));
+
+ // Outputs information about a detected event to std.out
+ final Consumer<UserAction> outputter = ua -> {
+ String eventDescription;
+ switch (ua.getType()) {
+ case TOGGLE_ON:
+ eventDescription = "ON";
+ break;
+ case TOGGLE_OFF:
+ eventDescription = "OFF";
+ break;
+ default:
+ throw new AssertionError("unhandled event type");
+ }
+ //String output = String.format("[ !!! %s SIGNATURE DETECTED at %s !!! ]",
+ // eventDescription, dateTimeFormatter.format(ua.getTimestamp()));
+ String output = String.format("%s",
+ dateTimeFormatter.format(ua.getTimestamp()));
+ System.out.println(output);
+ };
+
+ // Let's create observers that construct a UserAction representing the detected event.
+ final List<UserAction> detectedEvents = new ArrayList<>();
+ onDetector.addObserver((searched, match) -> {
+ PcapPacket firstPkt = match.get(0).get(0);
+ detectedEvents.add(new UserAction(UserAction.Type.TOGGLE_ON, firstPkt.getTimestamp()));
+ });
+ offDetector.addObserver((searched, match) -> {
+ PcapPacket firstPkt = match.get(0).get(0);
+ detectedEvents.add(new UserAction(UserAction.Type.TOGGLE_OFF, firstPkt.getTimestamp()));
+ });
+
+ PcapHandle handle;
+ try {
+ handle = Pcaps.openOffline(inputPcapFile, PcapHandle.TimestampPrecision.NANO);
+ } catch (PcapNativeException pne) {
+ handle = Pcaps.openOffline(inputPcapFile);
+ }
+ PcapHandleReader reader = new PcapHandleReader(handle, p -> true, onDetector, offDetector);
+ reader.readFromHandle();
+
+ // TODO: need a better way of triggering detection than this...
+ if (isRangeBasedForOn && isRangeBasedForOff) {
+ onDetector.mClusterMatchers.forEach(cm -> cm.performDetectionRangeBased());
+ offDetector.mClusterMatchers.forEach(cm -> cm.performDetectionRangeBased());
+ } else {
+ onDetector.mClusterMatchers.forEach(cm -> cm.performDetectionConservative());
+ offDetector.mClusterMatchers.forEach(cm -> cm.performDetectionConservative());
+ }
+
+ // Sort the list of detected events by timestamp to make it easier to compare it line-by-line with the trigger
+ // times file.
+ Collections.sort(detectedEvents, Comparator.comparing(UserAction::getTimestamp));
+
+ // Output the detected events
+ detectedEvents.forEach(outputter);
+
+ System.out.println("Number of detected events of type " + UserAction.Type.TOGGLE_ON + ": " +
+ detectedEvents.stream().filter(ua -> ua.getType() == UserAction.Type.TOGGLE_ON).count());
+ System.out.println("Number of detected events of type " + UserAction.Type.TOGGLE_OFF + ": " +
+ detectedEvents.stream().filter(ua -> ua.getType() == UserAction.Type.TOGGLE_OFF).count());
+
+ // TODO: Temporary clean up until we clean the pipeline
+// List<UserAction> cleanedDetectedEvents = SignatureDetector.removeDuplicates(detectedEvents);
+// cleanedDetectedEvents.forEach(outputter);
+ }
+
+ /**
+ * The signature that this {@link SignatureDetector} is searching for.
+ */
+ private final List<List<List<PcapPacket>>> mSignature;
+
+ /**
+ * The {@link Layer3ClusterMatcher}s in charge of detecting each individual sequence of packets that together make up the
+ * the signature.
+ */
+ private final List<Layer3ClusterMatcher> mClusterMatchers;
+
+ /**
+ * For each {@code i} ({@code i >= 0 && i < pendingMatches.length}), {@code pendingMatches[i]} holds the matches
+ * found by the {@link Layer3ClusterMatcher} at {@code mClusterMatchers.get(i)} that have yet to be "consumed", i.e.,
+ * have yet to be included in a signature detected by this {@link SignatureDetector} (a signature can be encompassed
+ * of multiple packet sequences occurring shortly after one another on multiple connections).
+ */
+ private final List<List<PcapPacket>>[] pendingMatches;
+
+ /**
+ * Maps a {@link Layer3ClusterMatcher} to its corresponding index in {@link #pendingMatches}.
+ */
+ private final Map<Layer3ClusterMatcher, Integer> mClusterMatcherIds;
+
+ private final List<SignatureDetectionObserver> mObservers = new ArrayList<>();
+
+ private int mInclusionTimeMillis;
+
+ /**
+ * Remove duplicates in {@code List} of {@code UserAction} objects. We need to clean this up for user actions
+ * that appear multiple times.
+ * TODO: This static method is probably just for temporary and we could get rid of this after we clean up
+ * TODO: the pipeline
+ *
+ * @param listUserAction A {@link List} of {@code UserAction}.
+ *
+ */
+ public static List<UserAction> removeDuplicates(List<UserAction> listUserAction) {
+
+ // Iterate and check for duplicates (check timestamps)
+ Set<Long> epochSecondSet = new HashSet<>();
+ // Create a target list for cleaned up list
+ List<UserAction> listUserActionClean = new ArrayList<>();
+ for(UserAction userAction : listUserAction) {
+ // Don't insert if any duplicate is found
+ if(!epochSecondSet.contains(userAction.getTimestamp().getEpochSecond())) {
+ listUserActionClean.add(userAction);
+ epochSecondSet.add(userAction.getTimestamp().getEpochSecond());
+ }
+ }
+ return listUserActionClean;
+ }
+
+ public Layer3SignatureDetector(List<List<List<PcapPacket>>> searchedSignature, String routerWanIp,
+ int inclusionTimeMillis, boolean isRangeBased, double eps) {
+ // note: doesn't protect inner lists from changes :'(
+ mSignature = Collections.unmodifiableList(searchedSignature);
+ // Generate corresponding/appropriate ClusterMatchers based on the provided signature
+ List<Layer3ClusterMatcher> clusterMatchers = new ArrayList<>();
+ for (List<List<PcapPacket>> cluster : mSignature) {
+ clusterMatchers.add(new Layer3ClusterMatcher(cluster, routerWanIp, isRangeBased, eps, this));
+ }
+ mClusterMatchers = Collections.unmodifiableList(clusterMatchers);
+
+ // < exploratory >
+ pendingMatches = new List[mClusterMatchers.size()];
+ for (int i = 0; i < pendingMatches.length; i++) {
+ pendingMatches[i] = new ArrayList<>();
+ }
+ Map<Layer3ClusterMatcher, Integer> clusterMatcherIds = new HashMap<>();
+ for (int i = 0; i < mClusterMatchers.size(); i++) {
+ clusterMatcherIds.put(mClusterMatchers.get(i), i);
+ }
+ mClusterMatcherIds = Collections.unmodifiableMap(clusterMatcherIds);
+ mInclusionTimeMillis =
+ inclusionTimeMillis == 0 ? TriggerTrafficExtractor.INCLUSION_WINDOW_MILLIS : inclusionTimeMillis;
+ }
+
+ public void addObserver(SignatureDetectionObserver observer) {
+ mObservers.add(observer);
+ }
+
+ public boolean removeObserver(SignatureDetectionObserver observer) {
+ return mObservers.remove(observer);
+ }
+
+ @Override
+ public void gotPacket(PcapPacket packet) {
+ // simply delegate packet reception to all ClusterMatchers.
+ mClusterMatchers.forEach(cm -> cm.gotPacket(packet));
+ }
+
+ @Override
+ public void onMatch(AbstractClusterMatcher clusterMatcher, List<PcapPacket> match) {
+ // Add the match at the corresponding index
+ pendingMatches[mClusterMatcherIds.get(clusterMatcher)].add(match);
+ checkSignatureMatch();
+ }
+
+ private void checkSignatureMatch() {
+ // << Graph-based approach using Balint's idea. >>
+ // This implementation assumes that the packets in the inner lists (the sequences) are ordered by asc timestamp.
+
+ // There cannot be a signature match until each Layer3ClusterMatcher has found a match of its respective sequence.
+ if (Arrays.stream(pendingMatches).noneMatch(l -> l.isEmpty())) {
+ // Construct the DAG
+ final SimpleDirectedWeightedGraph<Vertex, DefaultWeightedEdge> graph =
+ new SimpleDirectedWeightedGraph<>(DefaultWeightedEdge.class);
+ // Add a vertex for each match found by all ClusterMatchers
+ // And maintain an array to keep track of what cluster matcher each vertex corresponds to
+ final List<Vertex>[] vertices = new List[pendingMatches.length];
+ for (int i = 0; i < pendingMatches.length; i++) {
+ vertices[i] = new ArrayList<>();
+ for (List<PcapPacket> sequence : pendingMatches[i]) {
+ Vertex v = new Vertex(sequence);
+ vertices[i].add(v); // retain reference for later when we are to add edges
+ graph.addVertex(v); // add to vertex to graph
+ }
+ }
+ // Add dummy source and sink vertices to facilitate search.
+ final Vertex source = new Vertex(null);
+ final Vertex sink = new Vertex(null);
+ graph.addVertex(source);
+ graph.addVertex(sink);
+ // The source is connected to all vertices that wrap the sequences detected by Layer3ClusterMatcher at index 0.
+ // Note: zero cost edges as this is just a dummy link to facilitate search from a common start node.
+ for (Vertex v : vertices[0]) {
+ DefaultWeightedEdge edge = graph.addEdge(source, v);
+ graph.setEdgeWeight(edge, 0.0);
+ }
+ // Similarly, all vertices that wrap the sequences detected by the last Layer3ClusterMatcher of the signature
+ // are connected to the sink node.
+ for (Vertex v : vertices[vertices.length-1]) {
+ DefaultWeightedEdge edge = graph.addEdge(v, sink);
+ graph.setEdgeWeight(edge, 0.0);
+ }
+ // Now link sequences detected by Layer3ClusterMatcher at index i to sequences detected by Layer3ClusterMatcher at index
+ // i+1 if they obey the timestamp constraint (i.e., that the latter is later in time than the former).
+ for (int i = 0; i < vertices.length; i++) {
+ int j = i + 1;
+ if (j < vertices.length) {
+ for (Vertex iv : vertices[i]) {
+ PcapPacket ivLast = iv.sequence.get(iv.sequence.size()-1);
+ for (Vertex jv : vertices[j]) {
+ PcapPacket jvFirst = jv.sequence.get(jv.sequence.size()-1);
+ if (ivLast.getTimestamp().isBefore(jvFirst.getTimestamp())) {
+ DefaultWeightedEdge edge = graph.addEdge(iv, jv);
+ // The weight is the duration of the i'th sequence plus the duration between the i'th
+ // and i+1'th sequence.
+ Duration d = Duration.
+ between(iv.sequence.get(0).getTimestamp(), jvFirst.getTimestamp());
+ // Unfortunately weights are double values, so must convert from long to double.
+ // TODO: need nano second precision? If so, use d.toNanos().
+ // TODO: risk of overflow when converting from long to double..?
+ graph.setEdgeWeight(edge, Long.valueOf(d.toMillis()).doubleValue());
+ }
+ // Alternative version if we cannot assume that sequences are ordered by timestamp:
+// if (iv.sequence.stream().max(Comparator.comparing(PcapPacket::getTimestamp)).get()
+// .getTimestamp().isBefore(jv.sequence.stream().min(
+// Comparator.comparing(PcapPacket::getTimestamp)).get().getTimestamp())) {
+//
+// }
+ }
+ }
+ }
+ }
+ // Graph construction complete, run shortest-path to find a (potential) signature match.
+ DijkstraShortestPath<Vertex, DefaultWeightedEdge> dijkstra = new DijkstraShortestPath<>(graph);
+ GraphPath<Vertex, DefaultWeightedEdge> shortestPath = dijkstra.getPath(source, sink);
+ if (shortestPath != null) {
+ // The total weight is the duration between the first packet of the first sequence and the last packet
+ // of the last sequence, so we simply have to compare the weight against the timeframe that we allow
+ // the signature to span. For now we just use the inclusion window we defined for training purposes.
+ // Note however, that we must convert back from double to long as the weight is stored as a double in
+ // JGraphT's API.
+ if (((long)shortestPath.getWeight()) < mInclusionTimeMillis) {
+ // There's a signature match!
+ // Extract the match from the vertices
+ List<List<PcapPacket>> signatureMatch = new ArrayList<>();
+ for(Vertex v : shortestPath.getVertexList()) {
+ if (v == source || v == sink) {
+ // Skip the dummy source and sink nodes.
+ continue;
+ }
+ signatureMatch.add(v.sequence);
+ // As there is a one-to-one correspondence between vertices[] and pendingMatches[], we know that
+ // the sequence we've "consumed" for index i of the matched signature is also at index i in
+ // pendingMatches. We must remove it from pendingMatches so that we don't use it to construct
+ // another signature match in a later call.
+ pendingMatches[signatureMatch.size()-1].remove(v.sequence);
+ }
+ // Declare success: notify observers
+ mObservers.forEach(obs -> obs.onSignatureDetected(mSignature,
+ Collections.unmodifiableList(signatureMatch)));
+ }
+ }
+ }
+ }
+
+ /**
+ * Used for registering for notifications of signatures detected by a {@link SignatureDetector}.
+ */
+ interface SignatureDetectionObserver {
+
+ /**
+ * Invoked when the {@link SignatureDetector} detects the presence of a signature in the traffic that it's
+ * examining.
+ * @param searchedSignature The signature that the {@link SignatureDetector} reporting the match is searching
+ * for.
+ * @param matchingTraffic The actual traffic trace that matches the searched signature.
+ */
+ void onSignatureDetected(List<List<List<PcapPacket>>> searchedSignature,
+ List<List<PcapPacket>> matchingTraffic);
+ }
+
+ /**
+ * Encapsulates a {@code List<PcapPacket>} so as to allow the list to be used as a vertex in a graph while avoiding
+ * the expensive {@link AbstractList#equals(Object)} calls when adding vertices to the graph.
+ * Using this wrapper makes the incurred {@code equals(Object)} calls delegate to {@link Object#equals(Object)}
+ * instead of {@link AbstractList#equals(Object)}. The net effect is a faster implementation, but the graph will not
+ * recognize two lists that contain the same items--from a value and not reference point of view--as the same
+ * vertex. However, this is fine for our purposes -- in fact restricting it to reference equality seems more
+ * appropriate.
+ */
+ private static class Vertex {
+ private final List<PcapPacket> sequence;
+ private Vertex(List<PcapPacket> wrappedSequence) {
+ sequence = wrappedSequence;
+ }
+ }
+}
+++ /dev/null
-package edu.uci.iotproject.detection.layer3;
-
-import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
-import edu.uci.iotproject.analysis.UserAction;
-import edu.uci.iotproject.detection.AbstractClusterMatcher;
-import edu.uci.iotproject.detection.ClusterMatcherObserver;
-import edu.uci.iotproject.io.PcapHandleReader;
-import edu.uci.iotproject.util.PcapPacketUtils;
-import edu.uci.iotproject.util.PrintUtils;
-import org.apache.commons.math3.distribution.AbstractRealDistribution;
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.jgrapht.GraphPath;
-import org.jgrapht.alg.shortestpath.DijkstraShortestPath;
-import org.jgrapht.graph.DefaultWeightedEdge;
-import org.jgrapht.graph.SimpleDirectedWeightedGraph;
-import org.pcap4j.core.*;
-
-import java.time.Duration;
-import java.time.ZoneId;
-import java.time.format.DateTimeFormatter;
-import java.time.format.FormatStyle;
-import java.util.*;
-import java.util.function.Consumer;
-
-/**
- * Detects an event signature that spans one or multiple TCP connections.
- *
- * @author Janus Varmarken {@literal <jvarmark@uci.edu>}
- * @author Rahmadi Trimananda {@literal <rtrimana@uci.edu>}
- */
-public class SignatureDetector implements PacketListener, ClusterMatcherObserver {
-
- // Test client
- public static void main(String[] args) throws PcapNativeException, NotOpenException {
-// if (args.length < 3) {
-// String errMsg = String.format("Usage: %s inputPcapFile onSignatureFile offSignatureFile",
-// SignatureDetector.class.getSimpleName());
-// System.out.println(errMsg);
-// return;
-// }
-// final String inputPcapFile = args[0];
-// final String onSignatureFile = args[1];
-// final String offSignatureFile = args[2];
-
- String path = "/scratch/July-2018"; // Rahmadi
-// String path = "/Users/varmarken/temp/UCI IoT Project/experiments"; // Janus
-// String path = "/home/jvarmark/iot_project/datasets"; // Hera (server)
-// String path = "/raid/varmarken/iot_project/datasets"; // Zeus (server)
-
- // No activity test
- //final String inputPcapFile = path + "/evaluation/no-activity/no-activity.wlan1.pcap";
-
- // D-Link Siren experiment
-// final String inputPcapFile = path + "/evaluation/dlink-siren/dlink-siren.data.wlan1.pcap";
-// final String inputPcapFile = path + "/evaluation/dlink-siren/dlink-siren.eth0.local.pcap";
- // D-Link Siren DEVICE signatures
-// final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-device.sig";
-// final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-device.sig";
- // D-Link Siren PHONE signatures
-// final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-phone.sig";
-// final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-phone.sig";
- // TODO: EXPERIMENT - November 19, 2018
- // Hue Bulb experiment
-// final String inputPcapFile = path + "/2018-08/hue-bulb/hue-bulb.wlan1.local.pcap";
- // Hue Bulb PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/hue-bulb/signatures/hue-bulb-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/hue-bulb/signatures/hue-bulb-offSignature-phone-side.sig";
-
- /*
- // Kwikset Doorlock Sep 12 experiment
-// final String inputPcapFile = path + "/evaluation/kwikset-doorlock/kwikset-doorlock.data.wlan1.pcap";
- final String inputPcapFile = path + "/evaluation/kwikset-doorlock/kwikset-doorlock.data.eth0.pcap";
-// // Kwikset Doorlock PHONE signatures
- final String onSignatureFile = path + "/2018-08/kwikset-doorlock/onSignature-Kwikset-Doorlock-phone-new.sig";
- final String offSignatureFile = path + "/2018-08/kwikset-doorlock/offSignature-Kwikset-Doorlock-phone-new.sig";
- */
-
- // D-Link Plug experiment
- //final String inputPcapFile = path + "/evaluation/dlink/dlink-plug.data.wlan1.pcap";
-// final String inputPcapFile = path + "/evaluation/dlink/dlink-plug.data.eth0.pcap";
-
- // D-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/2018-07/dlink/onSignature-DLink-Plug-device.sig";
-// final String offSignatureFile = path + "/2018-07/dlink/offSignature-DLink-Plug-device.sig";
- // D-Link Plug PHONE signatures
-// final String onSignatureFile = path + "/2018-07/dlink/onSignature-DLink-Plug-phone.sig";
-// final String offSignatureFile = path + "/2018-07/dlink/offSignature-DLink-Plug-phone.sig";
-
- // TODO: The following are negative tests against the PCAP file from UNSW
-// final String inputPcapFile = path + "/UNSW/16-10-04.pcap"; // TODO: Seems to be broken! Zero-payload!
-// final String inputPcapFile = path + "/UNSW/16-10-12.pcap";
-
-// final String inputPcapFile = path + "/UNSW/16-09-28.pcap"; // TODO: Seems to be broken! Zero-payload!
-// final String inputPcapFile = path + "/UNSW/16-10-02.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-03.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-04-a.pcap"; // TODO: Seems to be broken! Zero-payload!
-// final String inputPcapFile = path + "/UNSW/16-10-04-b.pcap"; // TODO: Seems to be broken! Zero-payload!
-// final String inputPcapFile = path + "/UNSW/16-10-07.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-08.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-09.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-10.pcap"; // TODO: Seems to be broken!
-// final String inputPcapFile = path + "/UNSW/16-10-11.pcap"; // TODO: Seems to be broken!
- // TODO: The following one is very long!!! - Split into smaller files!
-// final String inputPcapFile = path + "/UNSW/16-10-12-a.pcap";
-// final String inputPcapFile = path + "/UNSW/16-10-12-b.pcap";
-// final String inputPcapFile = path + "/UNSW/16-10-12-c.pcap";
-// final String inputPcapFile = path + "/UNSW/16-10-12-d.pcap";
-
-// final String inputPcapFile = path + "/UNSW/16-09-23.pcap";
-// final String inputPcapFile = path + "/UNSW/16-09-24.pcap";
-// final String inputPcapFile = path + "/UNSW/16-09-25.pcap";
-// final String inputPcapFile = path + "/UNSW/16-09-26.pcap";
-// final String inputPcapFile = path + "/UNSW/16-09-27.pcap";
-// final String inputPcapFile = path + "/UNSW/16-09-29.pcap";
-// final String inputPcapFile = path + "/UNSW/16-10-01.pcap";
-// final String inputPcapFile = path + "/UNSW/16-10-06.pcap";
- // Negative test: dataset from UNB
-// final String inputPcapFile = path + "/evaluation/negative-datasets/UNB/Monday-WorkingHours_one-local-endpoint-001.pcap";
-
- // TODO: The following are tests for signatures against training data
-
- // TODO: D-LINK PLUG experiment
-// final String inputPcapFile = path + "/training/dlink-plug/wlan1/dlink-plug.wlan1.local.pcap";
- // D-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-offSignature-device-side.sig";
- // D-Link Plug PHONE signatures
-// final String onSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/dlink-plug/signatures/dlink-plug-offSignature-phone-side.sig";
-
- // TODO: EXPERIMENT - November 7, 2018
- // D-Link Plug experiment
-// //final String inputPcapFile = path + "/experimental_result/standalone/dlink-plug/wlan1/dlink-plug.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/dlink-plug/wlan1/dlink-plug.wlan1.detection.pcap";
-// //final String inputPcapFile = path + "/experimental_result/smarthome/dlink-plug/eth0/dlink-plug.eth0.detection.pcap";
-// // D-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-offSignature-device-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-onClusters-device-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-offClusters-device-side.cls";
- // D-Link Plug PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/dlink-plug/signatures/dlink-plug-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-plug/analysis/dlink-plug-offClusters-phone-side.cls";
-
- // TODO: EXPERIMENT - November 9, 2018
- // TODO: D-LINK SIREN experiment
- //final String inputPcapFile = path + "/experimental_result/standalone/dlink-siren/wlan1/dlink-siren.wlan1.local.pcap";
- //final String inputPcapFile = path + "/experimental_result/smarthome/dlink-siren/wlan1/dlink-siren.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/dlink-siren/eth0/dlink-siren.eth0.detection.pcap";
-// // D-Link Siren DEVICE signatures
-// // TODO: The device signature does not have pairs---only one packet which is 216, so we don't consider this as a signature
-// final String onSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-offSignature-device-side.sig";
- // D-Link Siren PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/dlink-siren/signatures/dlink-siren-offSignature-phone-side.sig";
-// final String onSignatureFile = path + "/training/signatures/dlink-siren/dlink-siren-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/signatures/dlink-siren/dlink-siren-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/dlink-siren/analysis/dlink-siren-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/dlink-siren/analysis/dlink-siren-offClusters-phone-side.cls";
-
- // TODO: TP-LINK PLUG experiment
-//// final String inputPcapFile = path + "/training/tplink-plug/wlan1/tplink-plug.wlan1.local.pcap";
-//// final String inputPcapFile = path + "/experimental_result/wifi-Sniffer/tests2/airtool_2019-01-04_11.08.45.AM.pcap";
-// final String inputPcapFile = path + "/experimental_result/wifi-Sniffer/tests2/command-frames-only.pcap";
-// // TP-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/training/tplink-plug/signatures/tplink-plug-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/training/tplink-plug/signatures/tplink-plug-offSignature-device-side.sig";
- // TODO: EXPERIMENT - November 8, 2018
- // TP-Link Plug experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/tplink-plug/wlan1/tplink-plug.wlan1.local.pcap";
-//// final String inputPcapFile = path + "/experimental_result/standalone/tplink-plug/eth0/tplink-plug.eth0.local.pcap";
-//// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-plug/wlan1/tplink-plug.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-plug/eth0/tplink-plug.eth0.detection.pcap";
-//// // TP-Link Plug DEVICE signatures
-//// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-device-side.sig";
-//// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-device-side.sig";
-// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-device-side-outbound.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-device-side-outbound.sig";
-// // TP-Link Plug PHONE signatures
-//// final String onSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-onSignature-phone-side.sig";
-//// final String offSignatureFile = path + "/experimental_result/standalone/tplink-plug/signatures/tplink-plug-offSignature-phone-side.sig";
-// // TP-Link Plug cluster analyses
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/tplink-plug/analysis/tplink-plug-onClusters.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/tplink-plug/analysis/tplink-plug-offClusters.cls";
-
- // Amazon Alexa experiment
-// final String inputPcapFile = path + "/training/amazon-alexa/wlan1/alexa2.wlan1.local.pcap";
-// // TP-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/training/amazon-alexa/signatures/amazon-alexa-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/training/amazon-alexa/signatures/amazon-alexa-offSignature-device-side.sig";
-
- // TODO: KWIKSET DOORLOCK Sep 12 experiment
-// final String inputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset3.wlan1.local.pcap";
-// // Kwikset Doorlock PHONE signatures
-// final String onSignatureFile = path + "/2018-08/kwikset-doorlock/onSignature-Kwikset-Doorlock-phone.sig";
-// final String offSignatureFile = path + "/2018-08/kwikset-doorlock/offSignature-Kwikset-Doorlock-phone.sig";
- // TODO: EXPERIMENT - November 10, 2018
- // Kwikset Door lock experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/kwikset-doorlock/wlan1/kwikset-doorlock.wlan1.local.pcap";
- //final String inputPcapFile = path + "/experimental_result/smarthome/kwikset-doorlock/wlan1/kwikset-doorlock.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/kwikset-doorlock/eth0/kwikset-doorlock.eth0.detection.pcap";
-// // Kwikset Door lock PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/kwikset-doorlock/signatures/kwikset-doorlock-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/kwikset-doorlock/signatures/kwikset-doorlock-offSignature-phone-side.sig";
-//// final String onSignatureFile = path + "/training/signatures/kwikset-doorlock/kwikset-doorlock-onSignature-phone-side.sig";
-//// final String offSignatureFile = path + "/training/signatures/kwikset-doorlock/kwikset-doorlock-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/kwikset-doorlock/analysis/kwikset-doorlock-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/kwikset-doorlock/analysis/kwikset-doorlock-offClusters-phone-side.cls";
-
- // TODO: SMARTTHINGS PLUG experiment
-// final String inputPcapFile = path + "/training/st-plug/wlan1/st-plug.wlan1.local.pcap";
-// // SmartThings Plug DEVICE signatures
-// //final String onSignatureFile = path + "/training/st-plug/signatures/st-plug-onSignature-device-side.sig";
-// //final String offSignatureFile = path + "/training/st-plug/signatures/st-plug-offSignature-device-side.sig";
-// // SmartThings Plug PHONE signatures
-// final String onSignatureFile = path + "/training/st-plug/signatures/st-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/st-plug/signatures/st-plug-offSignature-phone-side.sig";
- // TODO: EXPERIMENT - November 12, 2018
- // SmartThings Plug experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/st-plug/wlan1/st-plug.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/st-plug/eth0/st-plug.eth0.local.pcap";
-// //final String inputPcapFile = path + "/experimental_result/smarthome/st-plug/wlan1/st-plug.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/st-plug/eth0/st-plug.eth0.detection.pcap";
-//// // SmartThings Plug PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/st-plug/signatures/st-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/st-plug/signatures/st-plug-offSignature-phone-side.sig";
-// final String onSignatureFile = path + "/training/signatures/st-plug/st-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/signatures/st-plug/st-plug-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/st-plug/analysis/st-plug-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/st-plug/analysis/st-plug-offClusters-phone-side.cls";
-
- // TODO: ARLO CAMERA experiment
-// final String inputPcapFile = path + "/training/arlo-camera/wlan1/arlo-camera.wlan1.local.pcap";
-//// // TP-Link Plug DEVICE signatures
-// final String onSignatureFile = path + "/training/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig";
- // TODO: EXPERIMENT - November 13, 2018
- // Arlo Camera experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/arlo-camera/wlan1/arlo-camera.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/arlo-camera/eth0/arlo-camera.eth0.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/arlo-camera/wlan1/arlo-camera.wlan1.detection.pcap";
- final String inputPcapFile = path + "/experimental_result/smarthome/arlo-camera/eth0/arlo-camera.eth0.detection.pcap";
-// final String inputPcapFile = path + "/training/arlo-camera/eth0/arlo-camera.eth0.local.pcap";
- // Arlo Camera PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig";
- final String onSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-onSignature-phone-side.sig.complete";
- final String offSignatureFile = path + "/experimental_result/standalone/arlo-camera/signatures/arlo-camera-offSignature-phone-side.sig.complete";
- final String onClusterAnalysisFile = path + "/experimental_result/standalone/arlo-camera/analysis/arlo-camera-onClusters-phone-side.cls";
- final String offClusterAnalysisFile = path + "/experimental_result/standalone/arlo-camera/analysis/arlo-camera-offClusters-phone-side.cls";
-
- // TODO: NEST THERMOSTAT experiment
-// final String inputPcapFile = path + "/training/nest-thermostat/wlan1/nest-thermostat.wlan1.local.pcap";
-// // Nest Thermostat DEVICE signatures
-//// final String onSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-onSignature-device-side.sig";
-//// final String offSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-offSignature-device-side.sig";
-// // Nest Thermostat PHONE signatures
-// final String onSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/nest-thermostat/signatures/nest-thermostat-offSignature-phone-side.sig";
-// // TODO: EXPERIMENT - November 15, 2018
- // Nest Thermostat experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/nest-thermostat/wlan1/nest-thermostat.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/nest-thermostat/eth0/nest-thermostat.eth0.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/nest-thermostat/wlan1/nest-thermostat.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/nest-thermostat/eth0/nest-thermostat.eth0.detection.pcap";
-//// // Nest Thermostat PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/nest-thermostat/signatures/nest-thermostat-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/nest-thermostat/signatures/nest-thermostat-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/nest-thermostat/analysis/nest-thermostat-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/nest-thermostat/analysis/nest-thermostat-offClusters-phone-side.cls";
-
- // TODO: EXPERIMENT - January 9, 2018
- // TODO: BLOSSOM SPRINKLER experiment
- // Blossom Sprinkler experiment
-// //final String inputPcapFile = path + "/training/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.local.pcap";
-// final String inputPcapFile = path + "/2018-08/blossom/blossom.wlan1.local.pcap";
-// //final String inputPcapFile = path + "/training/blossom-sprinkler/eth0/blossom-sprinkler.eth0.local.pcap";
-// // Blossom Sprinkler DEVICE signatures
-// final String onSignatureFile = path + "/training/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/training/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-device-side.sig";
-
-//// final String inputPcapFile = path + "/experimental_result/standalone/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/blossom-sprinkler/eth0/blossom-sprinkler.eth0.detection.pcap";
-//// final String inputPcapFile = path + "/experimental_result/smarthome/blossom-sprinkler/wlan1/blossom-sprinkler.wlan1.detection.pcap";
-// // Blossom Sprinkler DEVICE signatures
-//// final String onSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-device-side.sig";
-//// final String offSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-device-side.sig";
-//// final String onClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-onClusters-device-side.cls";
-//// final String offClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-offClusters-device-side.cls";
-// // Blossom Sprinkler PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/blossom-sprinkler/signatures/blossom-sprinkler-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/blossom-sprinkler/analysis/blossom-sprinkler-offClusters-phone-side.cls";
-
- // LiFX Bulb experiment
-// final String inputPcapFile = path + "/training/lifx-bulb/wlan1/lifx-bulb.wlan1.local.pcap";
-// // LiFX Bulb DEVICE signatures
-// final String onSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-onSignature-device-side.sig";
-// final String offSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-offSignature-device-side.sig";
- // LiFX Bulb PHONE signatures
-// final String onSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/lifx-bulb/signatures/lifx-bulb-offSignature-phone-side.sig";
-
- /*
- // Hue Bulb experiment
- final String inputPcapFile = path + "/training/hue-bulb/wlan1/hue-bulb.wlan1.local.pcap";
- // Hue Bulb PHONE signatures
- final String onSignatureFile = path + "/training/hue-bulb/signatures/hue-bulb-onSignature-phone-side.sig";
- final String offSignatureFile = path + "/training/hue-bulb/signatures/hue-bulb-offSignature-phone-side.sig";
- */
-
- // TODO: TP-LINK BULB experiment
-// final String inputPcapFile = path + "/training/tplink-bulb/wlan1/tplink-bulb.wlan1.local.pcap";
-// // TP-Link Bulb PHONE signatures
-// final String onSignatureFile = path + "/training/tplink-bulb/signatures/tplink-bulb-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/training/tplink-bulb/signatures/tplink-bulb-offSignature-phone-side.sig";
- // TODO: EXPERIMENT - November 16, 2018
- // TP-Link Bulb experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/tplink-bulb/wlan1/tplink-bulb.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/tplink-bulb/eth0/tplink-bulb.eth0.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-bulb/wlan1/tplink-bulb.wlan1.detection.pcap";
-//// final String inputPcapFile = path + "/experimental_result/smarthome/tplink-bulb/eth0/tplink-bulb.eth0.detection.pcap";
-// // TP-Link Bulb PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/tplink-bulb/signatures/tplink-bulb-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/tplink-bulb/signatures/tplink-bulb-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/tplink-bulb/analysis/tplink-bulb-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/tplink-bulb/analysis/tplink-bulb-offClusters-phone-side.cls";
-
- // TODO: EXPERIMENT - November 20, 2018
- // TODO: WEMO PLUG experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/wemo-plug/wlan1/wemo-plug.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/wemo-plug/eth0/wemo-plug.eth0.local.pcap";
- // TODO: WE HAVE 4 ADDITIONAL EVENTS (TRIGGERED MANUALLY), SO WE JUST IGNORE THEM BECAUSE THEY HAPPENED BEFORE
- // TODO: THE ACTUAL TRIGGERS
-// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-plug/wlan1/wemo-plug.wlan1.detection.pcap";
-//// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-plug/eth0/wemo-plug.eth0.detection.pcap";
-// // WeMo Plug PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/wemo-plug/signatures/wemo-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/wemo-plug/signatures/wemo-plug-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/wemo-plug/analysis/wemo-plug-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/wemo-plug/analysis/wemo-plug-offClusters-phone-side.cls";
-
- // TODO: EXPERIMENT - November 21, 2018
- // TODO: WEMO INSIGHT Plug experiment
-// final String inputPcapFile = path + "/experimental_result/standalone/wemo-insight-plug/wlan1/wemo-insight-plug.wlan1.local.pcap";
-// final String inputPcapFile = path + "/experimental_result/standalone/wemo-insight-plug/eth0/wemo-insight-plug.eth0.local.pcap";
- // TODO: WE HAVE 1 ADDITIONAL EVENT (FROM WEMO PLUG)
-// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-insight-plug/wlan1/wemo-insight-plug.wlan1.detection.pcap";
-// final String inputPcapFile = path + "/experimental_result/smarthome/wemo-insight-plug/eth0/wemo-insight-plug.eth0.detection.pcap";
- // WeMo Insight Plug PHONE signatures
-// final String onSignatureFile = path + "/experimental_result/standalone/wemo-insight-plug/signatures/wemo-insight-plug-onSignature-phone-side.sig";
-// final String offSignatureFile = path + "/experimental_result/standalone/wemo-insight-plug/signatures/wemo-insight-plug-offSignature-phone-side.sig";
-// final String onClusterAnalysisFile = path + "/experimental_result/standalone/wemo-insight-plug/analysis/wemo-insight-plug-onClusters-phone-side.cls";
-// final String offClusterAnalysisFile = path + "/experimental_result/standalone/wemo-insight-plug/analysis/wemo-insight-plug-offClusters-phone-side.cls";
-
-
- /*
- // WeMo Plug experiment
- final String inputPcapFile = path + "/training/wemo-plug/wlan1/wemo-plug.wlan1.local.pcap";
- // WeMo Plug PHONE signatures
- final String onSignatureFile = path + "/training/wemo-plug/signatures/wemo-plug-onSignature-device-side.sig";
- final String offSignatureFile = path + "/training/wemo-plug/signatures/wemo-plug-offSignature-device-side.sig";
- // WeMo Insight Plug experiment
- final String inputPcapFile = path + "/training/wemo-insight-plug/wlan1/wemo-insight-plug.wlan1.local.pcap";
- // WeMo Insight Plug PHONE signatures
- final String onSignatureFile = path + "/training/wemo-insight-plug/signatures/wemo-insight-plug-onSignature-device-side.sig";
- final String offSignatureFile = path + "/training/wemo-insight-plug/signatures/wemo-insight-plug-offSignature-device-side.sig";
- */
-
- // D-Link Siren experiment
-// final String inputPcapFile = path + "/2018-08/dlink-siren/dlink-siren.wlan1.local.pcap";
- // D-Link Siren DEVICE signatures
- //final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-device.sig";
- //final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-device.sig";
- // D-Link Siren PHONE signatures
-// final String onSignatureFile = path + "/2018-08/dlink-siren/onSignature-DLink-Siren-phone.sig";
-// final String offSignatureFile = path + "/2018-08/dlink-siren/offSignature-DLink-Siren-phone.sig";
-
-
- // Output file names used (to make it easy to catch if one forgets to change them)
- System.out.println("ON signature file in use is " + onSignatureFile);
- System.out.println("OFF signature file in use is " + offSignatureFile);
- System.out.println("PCAP file that is the target of detection is " + inputPcapFile);
-
- // Specify epsilon
- // TODO: This would be specified through command line option
- double eps = 10.0;
- // Load signatures
- List<List<List<PcapPacket>>> onSignature = PrintUtils.deserializeFromFile(onSignatureFile);
- List<List<List<PcapPacket>>> offSignature = PrintUtils.deserializeFromFile(offSignatureFile);
- // Load signature analyses
- List<List<List<PcapPacket>>> onClusterAnalysis = PrintUtils.deserializeFromFile(onClusterAnalysisFile);
- List<List<List<PcapPacket>>> offClusterAnalysis = PrintUtils.deserializeFromFile(offClusterAnalysisFile);
-
- // TODO: FOR NOW WE DECIDE PER SIGNATURE AND THEN WE OR THE BOOLEANS
- // TODO: SINCE WE ONLY HAVE 2 SIGNATURES FOR NOW (ON AND OFF), THEN IT IS USUALLY EITHER RANGE-BASED OR
- // TODO: STRICT MATCHING
- // Check if we should use range-based matching
- boolean isRangeBasedForOn = PcapPacketUtils.isRangeBasedMatching(onSignature, eps, offSignature);
- boolean isRangeBasedForOff = PcapPacketUtils.isRangeBasedMatching(offSignature, eps, onSignature);
- // Update the signature with ranges if it is range-based
- if (isRangeBasedForOn && isRangeBasedForOff) {
- onSignature = PcapPacketUtils.useRangeBasedMatching(onSignature, onClusterAnalysis);
- offSignature = PcapPacketUtils.useRangeBasedMatching(offSignature, offClusterAnalysis);
- }
-
- // LAN
-// SignatureDetector onDetector = new SignatureDetector(onSignature, null);
-// SignatureDetector offDetector = new SignatureDetector(offSignature, null);
- // WAN
- SignatureDetector onDetector = new SignatureDetector(onSignature, "128.195.205.105",
- 0, isRangeBasedForOn, eps);
- SignatureDetector offDetector = new SignatureDetector(offSignature, "128.195.205.105",
- 0, isRangeBasedForOff, eps);
-
- final DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).
- withLocale(Locale.US).withZone(ZoneId.of("America/Los_Angeles"));
-
- // Outputs information about a detected event to std.out
- final Consumer<UserAction> outputter = ua -> {
- String eventDescription;
- switch (ua.getType()) {
- case TOGGLE_ON:
- eventDescription = "ON";
- break;
- case TOGGLE_OFF:
- eventDescription = "OFF";
- break;
- default:
- throw new AssertionError("unhandled event type");
- }
- //String output = String.format("[ !!! %s SIGNATURE DETECTED at %s !!! ]",
- // eventDescription, dateTimeFormatter.format(ua.getTimestamp()));
- String output = String.format("%s",
- dateTimeFormatter.format(ua.getTimestamp()));
- System.out.println(output);
- };
-
- // Let's create observers that construct a UserAction representing the detected event.
- final List<UserAction> detectedEvents = new ArrayList<>();
- onDetector.addObserver((searched, match) -> {
- PcapPacket firstPkt = match.get(0).get(0);
- detectedEvents.add(new UserAction(UserAction.Type.TOGGLE_ON, firstPkt.getTimestamp()));
- });
- offDetector.addObserver((searched, match) -> {
- PcapPacket firstPkt = match.get(0).get(0);
- detectedEvents.add(new UserAction(UserAction.Type.TOGGLE_OFF, firstPkt.getTimestamp()));
- });
-
- PcapHandle handle;
- try {
- handle = Pcaps.openOffline(inputPcapFile, PcapHandle.TimestampPrecision.NANO);
- } catch (PcapNativeException pne) {
- handle = Pcaps.openOffline(inputPcapFile);
- }
- PcapHandleReader reader = new PcapHandleReader(handle, p -> true, onDetector, offDetector);
- reader.readFromHandle();
-
- // TODO: need a better way of triggering detection than this...
- if (isRangeBasedForOn && isRangeBasedForOff) {
- onDetector.mClusterMatchers.forEach(cm -> cm.performDetectionRangeBased());
- offDetector.mClusterMatchers.forEach(cm -> cm.performDetectionRangeBased());
- } else {
- onDetector.mClusterMatchers.forEach(cm -> cm.performDetectionConservative());
- offDetector.mClusterMatchers.forEach(cm -> cm.performDetectionConservative());
- }
-
- // Sort the list of detected events by timestamp to make it easier to compare it line-by-line with the trigger
- // times file.
- Collections.sort(detectedEvents, Comparator.comparing(UserAction::getTimestamp));
-
- // Output the detected events
- detectedEvents.forEach(outputter);
-
- System.out.println("Number of detected events of type " + UserAction.Type.TOGGLE_ON + ": " +
- detectedEvents.stream().filter(ua -> ua.getType() == UserAction.Type.TOGGLE_ON).count());
- System.out.println("Number of detected events of type " + UserAction.Type.TOGGLE_OFF + ": " +
- detectedEvents.stream().filter(ua -> ua.getType() == UserAction.Type.TOGGLE_OFF).count());
-
- // TODO: Temporary clean up until we clean the pipeline
-// List<UserAction> cleanedDetectedEvents = SignatureDetector.removeDuplicates(detectedEvents);
-// cleanedDetectedEvents.forEach(outputter);
- }
-
- /**
- * The signature that this {@link SignatureDetector} is searching for.
- */
- private final List<List<List<PcapPacket>>> mSignature;
-
- /**
- * The {@link Layer3ClusterMatcher}s in charge of detecting each individual sequence of packets that together make up the
- * the signature.
- */
- private final List<Layer3ClusterMatcher> mClusterMatchers;
-
- /**
- * For each {@code i} ({@code i >= 0 && i < pendingMatches.length}), {@code pendingMatches[i]} holds the matches
- * found by the {@link Layer3ClusterMatcher} at {@code mClusterMatchers.get(i)} that have yet to be "consumed", i.e.,
- * have yet to be included in a signature detected by this {@link SignatureDetector} (a signature can be encompassed
- * of multiple packet sequences occurring shortly after one another on multiple connections).
- */
- private final List<List<PcapPacket>>[] pendingMatches;
-
- /**
- * Maps a {@link Layer3ClusterMatcher} to its corresponding index in {@link #pendingMatches}.
- */
- private final Map<Layer3ClusterMatcher, Integer> mClusterMatcherIds;
-
- private final List<SignatureDetectionObserver> mObservers = new ArrayList<>();
-
- private int mInclusionTimeMillis;
-
- /**
- * Remove duplicates in {@code List} of {@code UserAction} objects. We need to clean this up for user actions
- * that appear multiple times.
- * TODO: This static method is probably just for temporary and we could get rid of this after we clean up
- * TODO: the pipeline
- *
- * @param listUserAction A {@link List} of {@code UserAction}.
- *
- */
- public static List<UserAction> removeDuplicates(List<UserAction> listUserAction) {
-
- // Iterate and check for duplicates (check timestamps)
- Set<Long> epochSecondSet = new HashSet<>();
- // Create a target list for cleaned up list
- List<UserAction> listUserActionClean = new ArrayList<>();
- for(UserAction userAction : listUserAction) {
- // Don't insert if any duplicate is found
- if(!epochSecondSet.contains(userAction.getTimestamp().getEpochSecond())) {
- listUserActionClean.add(userAction);
- epochSecondSet.add(userAction.getTimestamp().getEpochSecond());
- }
- }
- return listUserActionClean;
- }
-
- public SignatureDetector(List<List<List<PcapPacket>>> searchedSignature, String routerWanIp,
- int inclusionTimeMillis, boolean isRangeBased, double eps) {
- // note: doesn't protect inner lists from changes :'(
- mSignature = Collections.unmodifiableList(searchedSignature);
- // Generate corresponding/appropriate ClusterMatchers based on the provided signature
- List<Layer3ClusterMatcher> clusterMatchers = new ArrayList<>();
- for (List<List<PcapPacket>> cluster : mSignature) {
- clusterMatchers.add(new Layer3ClusterMatcher(cluster, routerWanIp, isRangeBased, eps, this));
- }
- mClusterMatchers = Collections.unmodifiableList(clusterMatchers);
-
- // < exploratory >
- pendingMatches = new List[mClusterMatchers.size()];
- for (int i = 0; i < pendingMatches.length; i++) {
- pendingMatches[i] = new ArrayList<>();
- }
- Map<Layer3ClusterMatcher, Integer> clusterMatcherIds = new HashMap<>();
- for (int i = 0; i < mClusterMatchers.size(); i++) {
- clusterMatcherIds.put(mClusterMatchers.get(i), i);
- }
- mClusterMatcherIds = Collections.unmodifiableMap(clusterMatcherIds);
- mInclusionTimeMillis =
- inclusionTimeMillis == 0 ? TriggerTrafficExtractor.INCLUSION_WINDOW_MILLIS : inclusionTimeMillis;
- }
-
- public void addObserver(SignatureDetectionObserver observer) {
- mObservers.add(observer);
- }
-
- public boolean removeObserver(SignatureDetectionObserver observer) {
- return mObservers.remove(observer);
- }
-
- @Override
- public void gotPacket(PcapPacket packet) {
- // simply delegate packet reception to all ClusterMatchers.
- mClusterMatchers.forEach(cm -> cm.gotPacket(packet));
- }
-
- @Override
- public void onMatch(AbstractClusterMatcher clusterMatcher, List<PcapPacket> match) {
- // Add the match at the corresponding index
- pendingMatches[mClusterMatcherIds.get(clusterMatcher)].add(match);
- checkSignatureMatch();
- }
-
- private void checkSignatureMatch() {
- // << Graph-based approach using Balint's idea. >>
- // This implementation assumes that the packets in the inner lists (the sequences) are ordered by asc timestamp.
-
- // There cannot be a signature match until each Layer3ClusterMatcher has found a match of its respective sequence.
- if (Arrays.stream(pendingMatches).noneMatch(l -> l.isEmpty())) {
- // Construct the DAG
- final SimpleDirectedWeightedGraph<Vertex, DefaultWeightedEdge> graph =
- new SimpleDirectedWeightedGraph<>(DefaultWeightedEdge.class);
- // Add a vertex for each match found by all ClusterMatchers
- // And maintain an array to keep track of what cluster matcher each vertex corresponds to
- final List<Vertex>[] vertices = new List[pendingMatches.length];
- for (int i = 0; i < pendingMatches.length; i++) {
- vertices[i] = new ArrayList<>();
- for (List<PcapPacket> sequence : pendingMatches[i]) {
- Vertex v = new Vertex(sequence);
- vertices[i].add(v); // retain reference for later when we are to add edges
- graph.addVertex(v); // add to vertex to graph
- }
- }
- // Add dummy source and sink vertices to facilitate search.
- final Vertex source = new Vertex(null);
- final Vertex sink = new Vertex(null);
- graph.addVertex(source);
- graph.addVertex(sink);
- // The source is connected to all vertices that wrap the sequences detected by Layer3ClusterMatcher at index 0.
- // Note: zero cost edges as this is just a dummy link to facilitate search from a common start node.
- for (Vertex v : vertices[0]) {
- DefaultWeightedEdge edge = graph.addEdge(source, v);
- graph.setEdgeWeight(edge, 0.0);
- }
- // Similarly, all vertices that wrap the sequences detected by the last Layer3ClusterMatcher of the signature
- // are connected to the sink node.
- for (Vertex v : vertices[vertices.length-1]) {
- DefaultWeightedEdge edge = graph.addEdge(v, sink);
- graph.setEdgeWeight(edge, 0.0);
- }
- // Now link sequences detected by Layer3ClusterMatcher at index i to sequences detected by Layer3ClusterMatcher at index
- // i+1 if they obey the timestamp constraint (i.e., that the latter is later in time than the former).
- for (int i = 0; i < vertices.length; i++) {
- int j = i + 1;
- if (j < vertices.length) {
- for (Vertex iv : vertices[i]) {
- PcapPacket ivLast = iv.sequence.get(iv.sequence.size()-1);
- for (Vertex jv : vertices[j]) {
- PcapPacket jvFirst = jv.sequence.get(jv.sequence.size()-1);
- if (ivLast.getTimestamp().isBefore(jvFirst.getTimestamp())) {
- DefaultWeightedEdge edge = graph.addEdge(iv, jv);
- // The weight is the duration of the i'th sequence plus the duration between the i'th
- // and i+1'th sequence.
- Duration d = Duration.
- between(iv.sequence.get(0).getTimestamp(), jvFirst.getTimestamp());
- // Unfortunately weights are double values, so must convert from long to double.
- // TODO: need nano second precision? If so, use d.toNanos().
- // TODO: risk of overflow when converting from long to double..?
- graph.setEdgeWeight(edge, Long.valueOf(d.toMillis()).doubleValue());
- }
- // Alternative version if we cannot assume that sequences are ordered by timestamp:
-// if (iv.sequence.stream().max(Comparator.comparing(PcapPacket::getTimestamp)).get()
-// .getTimestamp().isBefore(jv.sequence.stream().min(
-// Comparator.comparing(PcapPacket::getTimestamp)).get().getTimestamp())) {
-//
-// }
- }
- }
- }
- }
- // Graph construction complete, run shortest-path to find a (potential) signature match.
- DijkstraShortestPath<Vertex, DefaultWeightedEdge> dijkstra = new DijkstraShortestPath<>(graph);
- GraphPath<Vertex, DefaultWeightedEdge> shortestPath = dijkstra.getPath(source, sink);
- if (shortestPath != null) {
- // The total weight is the duration between the first packet of the first sequence and the last packet
- // of the last sequence, so we simply have to compare the weight against the timeframe that we allow
- // the signature to span. For now we just use the inclusion window we defined for training purposes.
- // Note however, that we must convert back from double to long as the weight is stored as a double in
- // JGraphT's API.
- if (((long)shortestPath.getWeight()) < mInclusionTimeMillis) {
- // There's a signature match!
- // Extract the match from the vertices
- List<List<PcapPacket>> signatureMatch = new ArrayList<>();
- for(Vertex v : shortestPath.getVertexList()) {
- if (v == source || v == sink) {
- // Skip the dummy source and sink nodes.
- continue;
- }
- signatureMatch.add(v.sequence);
- // As there is a one-to-one correspondence between vertices[] and pendingMatches[], we know that
- // the sequence we've "consumed" for index i of the matched signature is also at index i in
- // pendingMatches. We must remove it from pendingMatches so that we don't use it to construct
- // another signature match in a later call.
- pendingMatches[signatureMatch.size()-1].remove(v.sequence);
- }
- // Declare success: notify observers
- mObservers.forEach(obs -> obs.onSignatureDetected(mSignature,
- Collections.unmodifiableList(signatureMatch)));
- }
- }
- }
- }
-
- /**
- * Used for registering for notifications of signatures detected by a {@link SignatureDetector}.
- */
- interface SignatureDetectionObserver {
-
- /**
- * Invoked when the {@link SignatureDetector} detects the presence of a signature in the traffic that it's
- * examining.
- * @param searchedSignature The signature that the {@link SignatureDetector} reporting the match is searching
- * for.
- * @param matchingTraffic The actual traffic trace that matches the searched signature.
- */
- void onSignatureDetected(List<List<List<PcapPacket>>> searchedSignature,
- List<List<PcapPacket>> matchingTraffic);
- }
-
- /**
- * Encapsulates a {@code List<PcapPacket>} so as to allow the list to be used as a vertex in a graph while avoiding
- * the expensive {@link AbstractList#equals(Object)} calls when adding vertices to the graph.
- * Using this wrapper makes the incurred {@code equals(Object)} calls delegate to {@link Object#equals(Object)}
- * instead of {@link AbstractList#equals(Object)}. The net effect is a faster implementation, but the graph will not
- * recognize two lists that contain the same items--from a value and not reference point of view--as the same
- * vertex. However, this is fine for our purposes -- in fact restricting it to reference equality seems more
- * appropriate.
- */
- private static class Vertex {
- private final List<PcapPacket> sequence;
- private Vertex(List<PcapPacket> wrappedSequence) {
- sequence = wrappedSequence;
- }
- }
-}
* @param newPacket The packet that was added to the flow.
*/
void onNewPacket(Layer2Flow flow, PcapPacket newPacket);
-
}
projects / pingpong.git / commitdiff