Code/Projects/SmartPlugDetector/src/main/java/edu/uci/iotproject/Main.java

   1 package edu.uci.iotproject;
   2
   3 import static edu.uci.iotproject.analysis.UserAction.Type;
   4
   5 import edu.uci.iotproject.analysis.*;
   6 import edu.uci.iotproject.comparison.seqalignment.ExtractedSequence;
   7 import edu.uci.iotproject.comparison.seqalignment.SequenceAlignment;
   8 import edu.uci.iotproject.comparison.seqalignment.SequenceExtraction;
   9 import edu.uci.iotproject.io.TriggerTimesFileReader;
  10 import edu.uci.iotproject.util.PcapPacketUtils;
  11 import edu.uci.iotproject.util.PrintUtils;
  12 import org.apache.commons.math3.stat.clustering.Cluster;
  13 import org.apache.commons.math3.stat.clustering.DBSCANClusterer;
  14 import org.pcap4j.core.*;
  15 import org.pcap4j.packet.namednumber.DataLinkType;
  16
  17 import java.io.EOFException;
  18 import java.io.File;
  19 import java.io.PrintWriter;
  20 import java.net.UnknownHostException;
  21 import java.time.Instant;
  22 import java.util.*;
  23 import java.util.concurrent.TimeoutException;
  24 import java.util.stream.Collectors;
  25 import java.util.stream.Stream;
  26
  27 /**
  28  * This is a system that reads PCAP files to compare
  29  * patterns of DNS hostnames, packet sequences, and packet
  30  * lengths with training data to determine certain events
  31  * or actions for smart home devices.
  32  *
  33  * @author Janus Varmarken
  34  * @author Rahmadi Trimananda (rtrimana@uci.edu)
  35  * @version 0.1
  36  */
  37 public class Main {
  38
  39
  40     public static void main(String[] args) throws PcapNativeException, NotOpenException, EOFException, TimeoutException, UnknownHostException {
  41         // -------------------------------------------------------------------------------------------------------------
  42         // ------------ # Code for extracting traffic generated by a device within x seconds of a trigger # ------------
  43         // Paths to input and output files (consider supplying these as arguments instead) and IP of the device for
  44         // which traffic is to be extracted:
  45         String path = "/scratch/July-2018"; // Rahmadi
  46 //        String path = "/Users/varmarken/temp/UCI IoT Project/experiments"; // Janus
  47         boolean verbose = true;
  48         final String onPairsPath = "/scratch/July-2018/on.txt";
  49         final String offPairsPath = "/scratch/July-2018/off.txt";
  50
  51         // 1) D-Link July 26 experiment
  52 //        final String inputPcapFile = path + "/2018-07/dlink/dlink.wlan1.local.pcap";
  53 //        final String outputPcapFile = path + "/2018-07/dlink/dlink-processed.pcap";
  54 //        final String triggerTimesFile = path + "/2018-07/dlink/dlink-july-26-2018.timestamps";
  55 //        final String deviceIp = "192.168.1.199"; // .246 == phone; .199 == dlink plug?
  56
  57         // 2) TP-Link July 25 experiment
  58 //        final String inputPcapFile = path + "/2018-07/tplink/tplink.wlan1.local.pcap";
  59 //        final String outputPcapFile = path + "/2018-07/tplink/tplink-processed.pcap";
  60 //        final String triggerTimesFile = path + "/2018-07/tplink/tplink-july-25-2018.timestamps";
  61 //        final String deviceIp = "192.168.1.159";
  62
  63         // 2b) TP-Link July 25 experiment TRUNCATED:
  64         // Only contains "true local" events, i.e., before the behavior changes to remote-like behavior.
  65         // Last included event is at July 25 10:38:11; file filtered to only include packets with arrival time <= 10:38:27.
  66 //        final String inputPcapFile = path + "/2018-07/tplink/tplink.wlan1.local.truncated.pcap";
  67 //        final String outputPcapFile = path + "/2018-07/tplink/tplink-processed.truncated.pcap";
  68 //        final String triggerTimesFile = path + "/2018-07/tplink/tplink-july-25-2018.truncated.timestamps";
  69 //        final String deviceIp = "192.168.1.159";
  70
  71         // 3) SmartThings Plug July 25 experiment
  72 //        final String inputPcapFile = path + "/2018-07/stplug/stplug.wlan1.local.pcap";
  73 //        final String outputPcapFile = path + "/2018-07/stplug/stplug-processed.pcap";
  74 //        final String triggerTimesFile = path + "/2018-07/stplug/smartthings-july-25-2018.timestamps";
  75 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .142 == SmartThings Hub (note: use eth0 capture for this!)
  76
  77         // 4) Wemo July 30 experiment
  78 //        final String inputPcapFile = path + "/2018-07/wemo/wemo.wlan1.local.pcap";
  79 //        final String outputPcapFile = path + "/2018-07/wemo/wemo-processed.pcap";
  80 //        final String triggerTimesFile = path + "/2018-07/wemo/wemo-july-30-2018.timestamps";
  81 //        final String deviceIp = "192.168.1.145";
  82
  83         // 5) Wemo Insight July 31 experiment
  84 //        final String inputPcapFile = path + "/2018-07/wemoinsight/wemoinsight.wlan1.local.pcap";
  85 //        final String outputPcapFile = path + "/2018-07/wemoinsight/wemoinsight-processed.pcap";
  86 //        final String triggerTimesFile = path + "/2018-07/wemoinsight/wemo-insight-july-31-2018.timestamps";
  87 //        final String deviceIp = "192.168.1.135";
  88
  89         // 6) TP-Link Bulb August 1 experiment
  90 //        final String inputPcapFile = path + "/2018-08/tplink-bulb/tplinkbulb.wlan1.local.pcap";
  91 //        final String outputPcapFile = path + "/2018-08/tplink-bulb/tplinkbulb-processed.pcap";
  92 //        final String triggerTimesFile = path + "/2018-08/tplink-bulb/tplink-bulb-aug-3-2018.timestamps";
  93 //        final String deviceIp = "192.168.1.140"; // .246 == phone; .140 == TP-Link bulb
  94
  95         // 7) Kwikset Doorlock August 6 experiment
  96 //        final String inputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset-doorlock.wlan1.local.pcap";
  97 //        final String outputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset-doorlock-processed.pcap";
  98 //        final String triggerTimesFile = path + "/2018-08/kwikset-doorlock/kwikset-doorlock-aug-6-2018.timestamps";
  99 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .142 == SmartThings Hub (note: use eth0 capture for this!)
 100
 101         // September 12, 2018 - includes both wlan1 and eth1 interfaces
 102 //        final String inputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset3.wlan1.local.pcap";
 103 //        //final String inputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset3.eth1.local.pcap";
 104 //        final String outputPcapFile = path + "/2018-08/kwikset-doorlock/kwikset3-processed.pcap";
 105 //        final String triggerTimesFile = path + "/2018-08/kwikset-doorlock/kwikset-doorlock-sept-12-2018.timestamps";
 106 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .142 == SmartThings Hub (note: use eth0 capture for this!)
 107
 108         // 8) Hue Bulb August 7 experiment
 109 //        final String inputPcapFile = path + "/2018-08/hue-bulb/hue-bulb.wlan1.local.pcap";
 110 //        final String outputPcapFile = path + "/2018-08/hue-bulb/hue-bulb-processed.pcap";
 111 //        final String triggerTimesFile = path + "/2018-08/hue-bulb/hue-bulb-aug-7-2018.timestamps";
 112 //        final String deviceIp = "192.168.1.246";
 113
 114         // 9) Lifx Bulb August 8 experiment
 115 //        final String inputPcapFile = path + "/2018-08/lifx-bulb/lifx-bulb.wlan1.local.pcap";
 116 //        final String outputPcapFile = path + "/2018-08/lifx-bulb/lifx-bulb-processed.pcap";
 117 //        final String triggerTimesFile = path + "/2018-08/lifx-bulb/lifx-bulb-aug-8-2018.timestamps";
 118 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .231 == Lifx
 119
 120         // 10) Amcrest Camera August 9 experiment
 121 //        final String inputPcapFile = path + "/2018-08/amcrest-camera/amcrest-camera.wlan1.local.pcap";
 122 //        final String outputPcapFile = path + "/2018-08/amcrest-camera/amcrest-camera-processed.pcap";
 123 //        final String triggerTimesFile = path + "/2018-08/amcrest-camera/amcrest-camera-aug-9-2018.timestamps";
 124 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .235 == camera
 125
 126         // 11) Arlo Camera August 10 experiment
 127 //        final String inputPcapFile = path + "/2018-08/arlo-camera/arlo-camera.wlan1.local.pcap";
 128 //        final String outputPcapFile = path + "/2018-08/arlo-camera/arlo-camera-processed.pcap";
 129 //        final String triggerTimesFile = path + "/2018-08/arlo-camera/arlo-camera-aug-10-2018.timestamps";
 130 //        final String deviceIp = "192.168.1.140"; // .246 == phone; .140 == camera
 131
 132         // 12) Blossom sprinkler August 13 experiment
 133 //        final String inputPcapFile = path + "/2018-08/blossom/blossom.wlan1.local.pcap";
 134 //        final String outputPcapFile = path + "/2018-08/blossom/blossom-processed.pcap";
 135 //        final String triggerTimesFile = path + "/2018-08/blossom/blossom-aug-13-2018.timestamps";
 136 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .229 == sprinkler
 137
 138 //        // 13) DLink siren August 14 experiment
 139         final String inputPcapFile = path + "/2018-08/dlink-siren/dlink-siren.wlan1.local.pcap";
 140         final String outputPcapFile = path + "/2018-08/dlink-siren/dlink-siren-processed.pcap";
 141         final String triggerTimesFile = path + "/2018-08/dlink-siren/dlink-siren-aug-14-2018.timestamps";
 142         final String deviceIp = "192.168.1.183"; // .246 == phone; .183 == siren
 143
 144         // 14) Nest thermostat August 15 experiment
 145 //        final String inputPcapFile = path + "/2018-08/nest/nest.wlan1.local.pcap";
 146 //        final String outputPcapFile = path + "/2018-08/nest/nest-processed.pcap";
 147 //        final String triggerTimesFile = path + "/2018-08/nest/nest-aug-15-2018.timestamps";
 148 //        final String deviceIp = "192.168.1.246"; // .246 == phone; .127 == Nest thermostat
 149
 150         // 15) Alexa August 16 experiment
 151 //        final String inputPcapFile = path + "/2018-08/alexa/alexa.wlan1.local.pcap";
 152 //        final String outputPcapFile = path + "/2018-08/alexa/alexa-processed.pcap";
 153 //        final String triggerTimesFile = path + "/2018-08/alexa/alexa-aug-16-2018.timestamps";
 154 //        final String deviceIp = "192.168.1.225"; // .246 == phone; .225 == Alexa
 155         // August 17
 156 //        final String inputPcapFile = path + "/2018-08/alexa/alexa2.wlan1.local.pcap";
 157 //        final String outputPcapFile = path + "/2018-08/alexa/alexa2-processed.pcap";
 158 //        final String triggerTimesFile = path + "/2018-08/alexa/alexa-aug-17-2018.timestamps";
 159 //        final String deviceIp = "192.168.1.225"; // .246 == phone; .225 == Alexa
 160
 161         // September 17
 162 //        final String inputPcapFile = path + "/2018-08/noise/noise.eth1.pcap";
 163 //        final String outputPcapFile = path + "/2018-08/noise/noise-processed.pcap";
 164 //        final String triggerTimesFile = path + "/2018-08/noise/noise-sept-17-2018.timestamps";
 165 //        final String deviceIp = "192.168.1.142"; //  .142 == SmartThings Hub; .199 == dlink plug; .183 == siren
 166         // September 26 - D-Link noise
 167 //        final String inputPcapFile = path + "/2018-08/noise/noise.dlink.wlan1.pcap";
 168 //        final String outputPcapFile = path + "/2018-08/noise/noise-processed.pcap";
 169 //        final String triggerTimesFile = path + "/2018-08/noise/dlink-noise-sept-26-2018.timestamps";
 170 //        final String deviceIp = "192.168.1.183"; //  .199 == dlink plug; .183 == siren
 171         // September 27 - Kwikset noise
 172 //        final String inputPcapFile = path + "/2018-08/noise/noise.kwikset.eth1.pcap";
 173 //        final String outputPcapFile = path + "/2018-08/noise/noise-processed.pcap";
 174 //        final String triggerTimesFile = path + "/2018-08/noise/kwikset-doorlock-noise-sept-27-2018.timestamps";
 175 //        final String deviceIp = "192.168.1.142"; //  .142 == SmartThings Hub;
 176
 177
 178         TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
 179         List<Instant> triggerTimes = ttfr.readTriggerTimes(triggerTimesFile, false);
 180         // Tag each trigger with "ON" or "OFF", assuming that the first trigger is an "ON" and that they alternate.
 181         List<UserAction> userActions = new ArrayList<>();
 182         for (int i = 0; i < triggerTimes.size(); i++) {
 183             userActions.add(new UserAction(i % 2 == 0 ? Type.TOGGLE_ON : Type.TOGGLE_OFF, triggerTimes.get(i)));
 184         }
 185         TriggerTrafficExtractor tte = new TriggerTrafficExtractor(inputPcapFile, triggerTimes, deviceIp);
 186         final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen(outputPcapFile);
 187         DnsMap dnsMap = new DnsMap();
 188         TcpReassembler tcpReassembler = new TcpReassembler();
 189         TrafficLabeler trafficLabeler = new TrafficLabeler(userActions);
 190         tte.performExtraction(pkt -> {
 191             try {
 192                 outputter.dump(pkt);
 193             } catch (NotOpenException e) {
 194                 e.printStackTrace();
 195             }
 196         }, dnsMap, tcpReassembler, trafficLabeler);
 197         outputter.flush();
 198         outputter.close();
 199
 200         if (tte.getPacketsIncludedCount() != trafficLabeler.getTotalPacketCount()) {
 201             // Sanity/debug check
 202             throw new AssertionError(String.format("mismatch between packet count in %s and %s",
 203                     TriggerTrafficExtractor.class.getSimpleName(), TrafficLabeler.class.getSimpleName()));
 204         }
 205
 206         // Extract all conversations present in the filtered trace.
 207         List<Conversation> allConversations = tcpReassembler.getTcpConversations();
 208         // Group conversations by hostname.
 209         Map<String, List<Conversation>> convsByHostname = TcpConversationUtils.groupConversationsByHostname(allConversations, dnsMap);
 210         System.out.println("Grouped conversations by hostname.");
 211         // For each hostname, count the frequencies of packet lengths exchanged with that hostname.
 212         final Map<String, Map<Integer, Integer>> pktLenFreqsByHostname = new HashMap<>();
 213         convsByHostname.forEach((host, convs) -> pktLenFreqsByHostname.put(host, TcpConversationUtils.countPacketLengthFrequencies(convs)));
 214         System.out.println("Counted frequencies of packet lengths exchanged with each hostname.");
 215         // For each hostname, count the frequencies of packet sequences (i.e., count how many conversations exchange a
 216         // sequence of packets of some specific lengths).
 217         final Map<String, Map<String, Integer>> pktSeqFreqsByHostname = new HashMap<>();
 218         convsByHostname.forEach((host, convs) -> pktSeqFreqsByHostname.put(host, TcpConversationUtils.countPacketSequenceFrequencies(convs)));
 219         System.out.println("Counted frequencies of packet sequences exchanged with each hostname.");
 220         // For each hostname, count frequencies of packet pairs exchanged with that hostname across all conversations
 221         final Map<String, Map<String, Integer>> pktPairFreqsByHostname =
 222                 TcpConversationUtils.countPacketPairFrequenciesByHostname(allConversations, dnsMap);
 223         System.out.println("Counted frequencies of packet pairs per hostname");
 224         // For each user action, reassemble the set of TCP connections occurring shortly after
 225         final Map<UserAction, List<Conversation>> userActionToConversations = trafficLabeler.getLabeledReassembledTcpTraffic();
 226         final Map<UserAction, Map<String, List<Conversation>>> userActionsToConvsByHostname = trafficLabeler.getLabeledReassembledTcpTraffic(dnsMap);
 227         System.out.println("Reassembled TCP conversations occurring shortly after each user event");
 228
 229
 230
 231         /*
 232          * NOTE: no need to generate these more complex on/off maps that also contain mappings from hostname and
 233          * sequence identifiers as we do not care about hostnames and sequences during clustering.
 234          * We can simply use the UserAction->List<Conversation> map to generate ON/OFF groupings of conversations.
 235          */
 236         /*
 237         // Contains all ON events: hostname -> sequence identifier -> list of conversations with that sequence
 238         Map<String, Map<String, List<Conversation>>> ons = new HashMap<>();
 239         // Contains all OFF events: hostname -> sequence identifier -> list of conversations with that sequence
 240         Map<String, Map<String, List<Conversation>>> offs = new HashMap<>();
 241         userActionsToConvsByHostname.forEach((ua, hostnameToConvs) -> {
 242             Map<String, Map<String, List<Conversation>>> outer = ua.getType() == Type.TOGGLE_ON ? ons : offs;
 243             hostnameToConvs.forEach((host, convs) -> {
 244                 Map<String, List<Conversation>> seqsToConvs = TcpConversationUtils.
 245                         groupConversationsByPacketSequence(convs, verbose);
 246                 outer.merge(host, seqsToConvs, (oldMap, newMap) -> {
 247                     newMap.forEach((sequence, cs) -> oldMap.merge(sequence, cs, (list1, list2) -> {
 248                         list1.addAll(list2);
 249                         return list1;
 250                     }));
 251                     return oldMap;
 252                 });
 253             });
 254         });
 255         */
 256
 257         // ================================================ CLUSTERING ================================================
 258         // Note: no need to use the more convoluted on/off maps; can simply use the UserAction->List<Conversation> map
 259         // when don't care about hostnames and sequences (see comment earlier).
 260         List<Conversation> onConversations = userActionToConversations.entrySet().stream().
 261                 filter(e -> e.getKey().getType() == Type.TOGGLE_ON). // drop all OFF events from stream
 262                 map(e -> e.getValue()). // no longer interested in the UserActions
 263                 flatMap(List::stream). // flatten List<List<T>> to a List<T>
 264                 collect(Collectors.toList());
 265         List<Conversation> offConversations = userActionToConversations.entrySet().stream().
 266                 filter(e -> e.getKey().getType() == Type.TOGGLE_OFF).
 267                 map(e -> e.getValue()).
 268                 flatMap(List::stream).
 269                 collect(Collectors.toList());
 270         //Collections.sort(onConversations, (c1, c2) -> c1.getPackets().)
 271
 272         List<PcapPacketPair> onPairs = onConversations.stream().
 273                 map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
 274                         TcpConversationUtils.extractPacketPairs(c)).
 275                 flatMap(List::stream). // flatten List<List<>> to List<>
 276                 collect(Collectors.toList());
 277         List<PcapPacketPair> offPairs = offConversations.stream().
 278                 map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
 279                         TcpConversationUtils.extractPacketPairs(c)).
 280                 flatMap(List::stream). // flatten List<List<>> to List<>
 281                 collect(Collectors.toList());
 282         // Note: need to update the DnsMap of all PcapPacketPairs if we want to use the IP/hostname-sensitive distance.
 283         Stream.concat(Stream.of(onPairs), Stream.of(offPairs)).flatMap(List::stream).forEach(p -> p.setDnsMap(dnsMap));
 284         // Perform clustering on conversation logged as part of all ON events.
 285         DBSCANClusterer<PcapPacketPair> onClusterer = new DBSCANClusterer<>(10.0, 45);
 286         List<Cluster<PcapPacketPair>> onClusters = onClusterer.cluster(onPairs);
 287         // Perform clustering on conversation logged as part of all OFF events.
 288         DBSCANClusterer<PcapPacketPair> offClusterer = new DBSCANClusterer<>(10.0, 45);
 289         List<Cluster<PcapPacketPair>> offClusters = offClusterer.cluster(offPairs);
 290         // Sort the conversations as reference
 291         List<Conversation> sortedAllConversation = TcpConversationUtils.sortConversationList(allConversations);
 292         // Output clusters
 293         System.out.println("========================================");
 294         System.out.println("       Clustering results for ON        ");
 295         System.out.println("       Number of clusters: " + onClusters.size());
 296         int count = 0;
 297         List<List<List<PcapPacket>>> ppListOfListReadOn = new ArrayList<>();
 298         List<List<List<PcapPacket>>> ppListOfListListOn = new ArrayList<>();
 299         for (Cluster<PcapPacketPair> c : onClusters) {
 300             System.out.println(String.format("<<< Cluster #%02d (%03d points) >>>", ++count, c.getPoints().size()));
 301             System.out.print(PrintUtils.toSummaryString(c));
 302             if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
 303                 // Print to file
 304                 List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
 305                 ppListOfListListOn.add(ppListOfList);
 306             }
 307         }
 308         // TODO: Merging test
 309         PcapPacketUtils.mergeSignatures(ppListOfListListOn, sortedAllConversation);
 310         PcapPacketUtils.sortSignatures(ppListOfListListOn);
 311         count = 0;
 312         /*for (List<List<PcapPacket>> ll : ppListOfListListOn) {
 313             PrintUtils.serializeClustersIntoFile("./onSignature" + ++count + ".sig", ll);
 314             ppListOfListReadOn.add(PrintUtils.deserializeClustersFromFile("./onSignature" + count + ".sig"));
 315         }*/
 316         PrintUtils.serializeSignatureIntoFile("./onSignature.sig", ppListOfListListOn);
 317         ppListOfListReadOn = PrintUtils.deserializeSignatureFromFile("./onSignature.sig");
 318
 319         System.out.println("========================================");
 320         System.out.println("       Clustering results for OFF       ");
 321         System.out.println("       Number of clusters: " + offClusters.size());
 322         count = 0;
 323         List<List<List<PcapPacket>>> ppListOfListReadOff = new ArrayList<>();
 324         List<List<List<PcapPacket>>> ppListOfListListOff = new ArrayList<>();
 325         for (Cluster<PcapPacketPair> c : offClusters) {
 326             System.out.println(String.format("<<< Cluster #%03d (%06d points) >>>", ++count, c.getPoints().size()));
 327             System.out.print(PrintUtils.toSummaryString(c));
 328             if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
 329                 // Print to file
 330                 List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
 331                 ppListOfListListOff.add(ppListOfList);
 332             }
 333         }
 334         // TODO: Merging test
 335         PcapPacketUtils.mergeSignatures(ppListOfListListOff, sortedAllConversation);
 336         PcapPacketUtils.sortSignatures(ppListOfListListOff);
 337         count = 0;
 338         /*for (List<List<PcapPacket>> ll : ppListOfListListOff) {
 339             PrintUtils.serializeClustersIntoFile("./offSignature" + ++count + ".sig", ll);
 340             ppListOfListReadOff.add(PrintUtils.deserializeClustersFromFile("./offSignature" + count + ".sig"));
 341         }*/
 342         PrintUtils.serializeSignatureIntoFile("./offSignature.sig", ppListOfListListOff);
 343         ppListOfListReadOff = PrintUtils.deserializeSignatureFromFile("./offSignature.sig");
 344         System.out.println("========================================");
 345         // ============================================================================================================
 346
 347         /*
 348         System.out.println("==== ON ====");
 349         // Print out all the pairs into a file for ON events
 350         File fileOnEvents = new File(onPairsPath);
 351         PrintWriter pwOn = null;
 352         try {
 353
 354
 355             pwOn = new PrintWriter(fileOnEvents);
 356         } catch(Exception ex) {
 357             ex.printStackTrace();
 358         }
 359         for(Map.Entry<String, Map<String, List<Conversation>>> entry : ons.entrySet()) {
 360             Map<String, List<Conversation>> seqsToConvs = entry.getValue();
 361             for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
 362                 List<Conversation> listConv = entryConv.getValue();
 363                 // Just get the first Conversation because all Conversations in this group
 364                 // should have the same pairs of Application Data.
 365                 for(Conversation conv : listConv) {
 366                     // Process only if it is a TLS packet
 367                     if (conv.isTls()) {
 368                         List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
 369                         for(PcapPacketPair pair: tlsAppDataList) {
 370                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 371                             pwOn.println(PrintUtils.toCsv(pair, dnsMap));
 372                         }
 373                     } else { // Non-TLS conversations
 374                         List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
 375                         for(PcapPacketPair pair: packetList) {
 376                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 377                             pwOn.println(PrintUtils.toCsv(pair, dnsMap));
 378                         }
 379                     }
 380                 }
 381             }
 382         }
 383         pwOn.close();
 384
 385         System.out.println("==== OFF ====");
 386         // Print out all the pairs into a file for ON events
 387         File fileOffEvents = new File(offPairsPath);
 388         PrintWriter pwOff = null;
 389         try {
 390             pwOff = new PrintWriter(fileOffEvents);
 391         } catch(Exception ex) {
 392             ex.printStackTrace();
 393         }
 394         for(Map.Entry<String, Map<String, List<Conversation>>> entry : offs.entrySet()) {
 395             Map<String, List<Conversation>> seqsToConvs = entry.getValue();
 396             for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
 397                 List<Conversation> listConv = entryConv.getValue();
 398                 // Just get the first Conversation because all Conversations in this group
 399                 // should have the same pairs of Application Data.
 400                 for(Conversation conv : listConv) {
 401                     // Process only if it is a TLS packet
 402                     if (conv.isTls()) {
 403                         List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
 404                         for(PcapPacketPair pair: tlsAppDataList) {
 405                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 406                             pwOff.println(PrintUtils.toCsv(pair, dnsMap));
 407                         }
 408                     } else { // Non-TLS conversations
 409                         List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
 410                         for (PcapPacketPair pair : packetList) {
 411                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 412                             pwOff.println(PrintUtils.toCsv(pair, dnsMap));
 413                         }
 414                     }
 415                 }
 416             }
 417         }
 418         pwOff.close();
 419         */
 420
 421 //        // ================================================================================================
 422 //        // <<< Some work-in-progress/explorative code that extracts a "representative" sequence >>>
 423 //        //
 424 //        // Currently need to know relevant hostname in advance :(
 425 //        String hostname = "events.tplinkra.com";
 426 ////        String hostname = "rfe-us-west-1.dch.dlink.com";
 427 //        // Conversations with 'hostname' for ON events.
 428 //        List<Conversation> onsForHostname = new ArrayList<>();
 429 //        // Conversations with 'hostname' for OFF events.
 430 //        List<Conversation> offsForHostname = new ArrayList<>();
 431 //        // "Unwrap" sequence groupings in ons/offs maps.
 432 //        ons.get(hostname).forEach((k,v) -> onsForHostname.addAll(v));
 433 //        offs.get(hostname).forEach((k,v) -> offsForHostname.addAll(v));
 434 //
 435 //
 436 //        Map<String, List<Conversation>> onsForHostnameGroupedByTlsAppDataSequence = TcpConversationUtils.groupConversationsByTlsApplicationDataPacketSequence(onsForHostname);
 437 //
 438 //
 439 //        // Extract representative sequence for ON and OFF by providing the list of conversations with
 440 //        // 'hostname' observed for each event type (the training data).
 441 //        SequenceExtraction seqExtraction = new SequenceExtraction();
 442 ////        ExtractedSequence extractedSequenceForOn = seqExtraction.extract(onsForHostname);
 443 ////        ExtractedSequence extractedSequenceForOff = seqExtraction.extract(offsForHostname);
 444 //
 445 //        ExtractedSequence extractedSequenceForOn = seqExtraction.extractByTlsAppData(onsForHostname);
 446 //        ExtractedSequence extractedSequenceForOff = seqExtraction.extractByTlsAppData(offsForHostname);
 447 //
 448 //        // Let's check how many ONs align with OFFs and vice versa (that is, how many times an event is incorrectly
 449 //        // labeled).
 450 //        int onsLabeledAsOff = 0;
 451 //        Integer[] representativeOnSeq = TcpConversationUtils.getPacketLengthSequence(extractedSequenceForOn.getRepresentativeSequence());
 452 //        Integer[] representativeOffSeq = TcpConversationUtils.getPacketLengthSequence(extractedSequenceForOff.getRepresentativeSequence());
 453 //        SequenceAlignment<Integer> seqAlg = seqExtraction.getAlignmentAlgorithm();
 454 //        for (Conversation c : onsForHostname) {
 455 //            Integer[] onSeq = TcpConversationUtils.getPacketLengthSequence(c);
 456 //            if (seqAlg.calculateAlignment(representativeOffSeq, onSeq) <= extractedSequenceForOff.getMaxAlignmentCost()) {
 457 //                onsLabeledAsOff++;
 458 //            }
 459 //        }
 460 //        int offsLabeledAsOn = 0;
 461 //        for (Conversation c : offsForHostname) {
 462 //            Integer[] offSeq = TcpConversationUtils.getPacketLengthSequence(c);
 463 //            if (seqAlg.calculateAlignment(representativeOnSeq, offSeq) <= extractedSequenceForOn.getMaxAlignmentCost()) {
 464 //                offsLabeledAsOn++;
 465 //            }
 466 //        }
 467 //        System.out.println("");
 468 //        // ================================================================================================
 469 //
 470 //
 471 //        // -------------------------------------------------------------------------------------------------------------
 472 //        // -------------------------------------------------------------------------------------------------------------
 473     }
 474
 475 }
 476
 477
 478 // TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)
 479 // frame.len >= 556 && frame.len <= 558 && ip.addr == 192.168.1.159