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 = "192.168.1.142"; // .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 = "192.168.1.246"; // .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
 167         TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
 168         List<Instant> triggerTimes = ttfr.readTriggerTimes(triggerTimesFile, false);
 169         // Tag each trigger with "ON" or "OFF", assuming that the first trigger is an "ON" and that they alternate.
 170         List<UserAction> userActions = new ArrayList<>();
 171         for (int i = 0; i < triggerTimes.size(); i++) {
 172             userActions.add(new UserAction(i % 2 == 0 ? Type.TOGGLE_ON : Type.TOGGLE_OFF, triggerTimes.get(i)));
 173         }
 174         TriggerTrafficExtractor tte = new TriggerTrafficExtractor(inputPcapFile, triggerTimes, deviceIp);
 175         final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen(outputPcapFile);
 176         DnsMap dnsMap = new DnsMap();
 177         TcpReassembler tcpReassembler = new TcpReassembler();
 178         TrafficLabeler trafficLabeler = new TrafficLabeler(userActions);
 179         tte.performExtraction(pkt -> {
 180             try {
 181                 outputter.dump(pkt);
 182             } catch (NotOpenException e) {
 183                 e.printStackTrace();
 184             }
 185         }, dnsMap, tcpReassembler, trafficLabeler);
 186         outputter.flush();
 187         outputter.close();
 188
 189         if (tte.getPacketsIncludedCount() != trafficLabeler.getTotalPacketCount()) {
 190             // Sanity/debug check
 191             throw new AssertionError(String.format("mismatch between packet count in %s and %s",
 192                     TriggerTrafficExtractor.class.getSimpleName(), TrafficLabeler.class.getSimpleName()));
 193         }
 194
 195         // Extract all conversations present in the filtered trace.
 196         List<Conversation> allConversations = tcpReassembler.getTcpConversations();
 197         // Group conversations by hostname.
 198         Map<String, List<Conversation>> convsByHostname = TcpConversationUtils.groupConversationsByHostname(allConversations, dnsMap);
 199         System.out.println("Grouped conversations by hostname.");
 200         // For each hostname, count the frequencies of packet lengths exchanged with that hostname.
 201         final Map<String, Map<Integer, Integer>> pktLenFreqsByHostname = new HashMap<>();
 202         convsByHostname.forEach((host, convs) -> pktLenFreqsByHostname.put(host, TcpConversationUtils.countPacketLengthFrequencies(convs)));
 203         System.out.println("Counted frequencies of packet lengths exchanged with each hostname.");
 204         // For each hostname, count the frequencies of packet sequences (i.e., count how many conversations exchange a
 205         // sequence of packets of some specific lengths).
 206         final Map<String, Map<String, Integer>> pktSeqFreqsByHostname = new HashMap<>();
 207         convsByHostname.forEach((host, convs) -> pktSeqFreqsByHostname.put(host, TcpConversationUtils.countPacketSequenceFrequencies(convs)));
 208         System.out.println("Counted frequencies of packet sequences exchanged with each hostname.");
 209         // For each hostname, count frequencies of packet pairs exchanged with that hostname across all conversations
 210         final Map<String, Map<String, Integer>> pktPairFreqsByHostname =
 211                 TcpConversationUtils.countPacketPairFrequenciesByHostname(allConversations, dnsMap);
 212         System.out.println("Counted frequencies of packet pairs per hostname");
 213         // For each user action, reassemble the set of TCP connections occurring shortly after
 214         final Map<UserAction, List<Conversation>> userActionToConversations = trafficLabeler.getLabeledReassembledTcpTraffic();
 215         final Map<UserAction, Map<String, List<Conversation>>> userActionsToConvsByHostname = trafficLabeler.getLabeledReassembledTcpTraffic(dnsMap);
 216         System.out.println("Reassembled TCP conversations occurring shortly after each user event");
 217
 218
 219
 220         /*
 221          * NOTE: no need to generate these more complex on/off maps that also contain mappings from hostname and
 222          * sequence identifiers as we do not care about hostnames and sequences during clustering.
 223          * We can simply use the UserAction->List<Conversation> map to generate ON/OFF groupings of conversations.
 224          */
 225         /*
 226         // Contains all ON events: hostname -> sequence identifier -> list of conversations with that sequence
 227         Map<String, Map<String, List<Conversation>>> ons = new HashMap<>();
 228         // Contains all OFF events: hostname -> sequence identifier -> list of conversations with that sequence
 229         Map<String, Map<String, List<Conversation>>> offs = new HashMap<>();
 230         userActionsToConvsByHostname.forEach((ua, hostnameToConvs) -> {
 231             Map<String, Map<String, List<Conversation>>> outer = ua.getType() == Type.TOGGLE_ON ? ons : offs;
 232             hostnameToConvs.forEach((host, convs) -> {
 233                 Map<String, List<Conversation>> seqsToConvs = TcpConversationUtils.
 234                         groupConversationsByPacketSequence(convs, verbose);
 235                 outer.merge(host, seqsToConvs, (oldMap, newMap) -> {
 236                     newMap.forEach((sequence, cs) -> oldMap.merge(sequence, cs, (list1, list2) -> {
 237                         list1.addAll(list2);
 238                         return list1;
 239                     }));
 240                     return oldMap;
 241                 });
 242             });
 243         });
 244         */
 245
 246         // ================================================ CLUSTERING ================================================
 247         // Note: no need to use the more convoluted on/off maps; can simply use the UserAction->List<Conversation> map
 248         // when don't care about hostnames and sequences (see comment earlier).
 249         List<Conversation> onConversations = userActionToConversations.entrySet().stream().
 250                 filter(e -> e.getKey().getType() == Type.TOGGLE_ON). // drop all OFF events from stream
 251                 map(e -> e.getValue()). // no longer interested in the UserActions
 252                 flatMap(List::stream). // flatten List<List<T>> to a List<T>
 253                 collect(Collectors.toList());
 254         List<Conversation> offConversations = userActionToConversations.entrySet().stream().
 255                 filter(e -> e.getKey().getType() == Type.TOGGLE_OFF).
 256                 map(e -> e.getValue()).
 257                 flatMap(List::stream).
 258                 collect(Collectors.toList());
 259         //Collections.sort(onConversations, (c1, c2) -> c1.getPackets().)
 260
 261         List<PcapPacketPair> onPairs = onConversations.stream().
 262                 map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
 263                         TcpConversationUtils.extractPacketPairs(c)).
 264                 flatMap(List::stream). // flatten List<List<>> to List<>
 265                 collect(Collectors.toList());
 266         List<PcapPacketPair> offPairs = offConversations.stream().
 267                 map(c -> c.isTls() ? TcpConversationUtils.extractTlsAppDataPacketPairs(c) :
 268                         TcpConversationUtils.extractPacketPairs(c)).
 269                 flatMap(List::stream). // flatten List<List<>> to List<>
 270                 collect(Collectors.toList());
 271         // Note: need to update the DnsMap of all PcapPacketPairs if we want to use the IP/hostname-sensitive distance.
 272         Stream.concat(Stream.of(onPairs), Stream.of(offPairs)).flatMap(List::stream).forEach(p -> p.setDnsMap(dnsMap));
 273         // Perform clustering on conversation logged as part of all ON events.
 274         DBSCANClusterer<PcapPacketPair> onClusterer = new DBSCANClusterer<>(10.0, 45);
 275         List<Cluster<PcapPacketPair>> onClusters = onClusterer.cluster(onPairs);
 276         // Perform clustering on conversation logged as part of all OFF events.
 277         DBSCANClusterer<PcapPacketPair> offClusterer = new DBSCANClusterer<>(10.0, 45);
 278         List<Cluster<PcapPacketPair>> offClusters = offClusterer.cluster(offPairs);
 279         // Sort the conversations as reference
 280         List<Conversation> sortedAllConversation = TcpConversationUtils.sortConversationList(allConversations);
 281         // Output clusters
 282         System.out.println("========================================");
 283         System.out.println("       Clustering results for ON        ");
 284         System.out.println("       Number of clusters: " + onClusters.size());
 285         int count = 0;
 286         List<List<List<PcapPacket>>> ppListOfListReadOn = new ArrayList<>();
 287         List<List<List<PcapPacket>>> ppListOfListListOn = new ArrayList<>();
 288         for (Cluster<PcapPacketPair> c : onClusters) {
 289             System.out.println(String.format("<<< Cluster #%02d (%03d points) >>>", ++count, c.getPoints().size()));
 290             System.out.print(PrintUtils.toSummaryString(c));
 291             if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
 292                 // Print to file
 293                 List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
 294                 ppListOfListListOn.add(ppListOfList);
 295             }
 296         }
 297         // TODO: Merging test
 298         PcapPacketUtils.mergeSignatures(ppListOfListListOn, sortedAllConversation);
 299         PcapPacketUtils.sortSignatures(ppListOfListListOn);
 300         count = 0;
 301         for (List<List<PcapPacket>> ll : ppListOfListListOn) {
 302             PrintUtils.serializeClustersIntoFile("./onSignature" + ++count + ".sig", ll);
 303             ppListOfListReadOn.add(PrintUtils.serializeClustersFromFile("./onSignature" + count + ".sig"));
 304         }
 305
 306         System.out.println("========================================");
 307         System.out.println("       Clustering results for OFF       ");
 308         System.out.println("       Number of clusters: " + offClusters.size());
 309         count = 0;
 310         List<List<List<PcapPacket>>> ppListOfListReadOff = new ArrayList<>();
 311         List<List<List<PcapPacket>>> ppListOfListListOff = new ArrayList<>();
 312         for (Cluster<PcapPacketPair> c : offClusters) {
 313             System.out.println(String.format("<<< Cluster #%03d (%06d points) >>>", ++count, c.getPoints().size()));
 314             System.out.print(PrintUtils.toSummaryString(c));
 315             if(c.getPoints().size() > 45 && c.getPoints().size() < 55) {
 316                 // Print to file
 317                 List<List<PcapPacket>> ppListOfList = PcapPacketUtils.clusterToListOfPcapPackets(c);
 318                 ppListOfListListOff.add(ppListOfList);
 319             }
 320         }
 321         // TODO: Merging test
 322         PcapPacketUtils.mergeSignatures(ppListOfListListOff, sortedAllConversation);
 323         PcapPacketUtils.sortSignatures(ppListOfListListOff);
 324         count = 0;
 325         for (List<List<PcapPacket>> ll : ppListOfListListOff) {
 326             PrintUtils.serializeClustersIntoFile("./offSignature" + ++count + ".sig", ll);
 327             ppListOfListReadOff.add(PrintUtils.serializeClustersFromFile("./offSignature" + count + ".sig"));
 328         }
 329         System.out.println("========================================");
 330         // ============================================================================================================
 331
 332         /*
 333         System.out.println("==== ON ====");
 334         // Print out all the pairs into a file for ON events
 335         File fileOnEvents = new File(onPairsPath);
 336         PrintWriter pwOn = null;
 337         try {
 338
 339
 340             pwOn = new PrintWriter(fileOnEvents);
 341         } catch(Exception ex) {
 342             ex.printStackTrace();
 343         }
 344         for(Map.Entry<String, Map<String, List<Conversation>>> entry : ons.entrySet()) {
 345             Map<String, List<Conversation>> seqsToConvs = entry.getValue();
 346             for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
 347                 List<Conversation> listConv = entryConv.getValue();
 348                 // Just get the first Conversation because all Conversations in this group
 349                 // should have the same pairs of Application Data.
 350                 for(Conversation conv : listConv) {
 351                     // Process only if it is a TLS packet
 352                     if (conv.isTls()) {
 353                         List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
 354                         for(PcapPacketPair pair: tlsAppDataList) {
 355                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 356                             pwOn.println(PrintUtils.toCsv(pair, dnsMap));
 357                         }
 358                     } else { // Non-TLS conversations
 359                         List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
 360                         for(PcapPacketPair pair: packetList) {
 361                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 362                             pwOn.println(PrintUtils.toCsv(pair, dnsMap));
 363                         }
 364                     }
 365                 }
 366             }
 367         }
 368         pwOn.close();
 369
 370         System.out.println("==== OFF ====");
 371         // Print out all the pairs into a file for ON events
 372         File fileOffEvents = new File(offPairsPath);
 373         PrintWriter pwOff = null;
 374         try {
 375             pwOff = new PrintWriter(fileOffEvents);
 376         } catch(Exception ex) {
 377             ex.printStackTrace();
 378         }
 379         for(Map.Entry<String, Map<String, List<Conversation>>> entry : offs.entrySet()) {
 380             Map<String, List<Conversation>> seqsToConvs = entry.getValue();
 381             for(Map.Entry<String, List<Conversation>> entryConv : seqsToConvs.entrySet()) {
 382                 List<Conversation> listConv = entryConv.getValue();
 383                 // Just get the first Conversation because all Conversations in this group
 384                 // should have the same pairs of Application Data.
 385                 for(Conversation conv : listConv) {
 386                     // Process only if it is a TLS packet
 387                     if (conv.isTls()) {
 388                         List<PcapPacketPair> tlsAppDataList = TcpConversationUtils.extractTlsAppDataPacketPairs(conv);
 389                         for(PcapPacketPair pair: tlsAppDataList) {
 390                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 391                             pwOff.println(PrintUtils.toCsv(pair, dnsMap));
 392                         }
 393                     } else { // Non-TLS conversations
 394                         List<PcapPacketPair> packetList = TcpConversationUtils.extractPacketPairs(conv);
 395                         for (PcapPacketPair pair : packetList) {
 396                             System.out.println(PrintUtils.toCsv(pair, dnsMap));
 397                             pwOff.println(PrintUtils.toCsv(pair, dnsMap));
 398                         }
 399                     }
 400                 }
 401             }
 402         }
 403         pwOff.close();
 404         */
 405
 406 //        // ================================================================================================
 407 //        // <<< Some work-in-progress/explorative code that extracts a "representative" sequence >>>
 408 //        //
 409 //        // Currently need to know relevant hostname in advance :(
 410 //        String hostname = "events.tplinkra.com";
 411 ////        String hostname = "rfe-us-west-1.dch.dlink.com";
 412 //        // Conversations with 'hostname' for ON events.
 413 //        List<Conversation> onsForHostname = new ArrayList<>();
 414 //        // Conversations with 'hostname' for OFF events.
 415 //        List<Conversation> offsForHostname = new ArrayList<>();
 416 //        // "Unwrap" sequence groupings in ons/offs maps.
 417 //        ons.get(hostname).forEach((k,v) -> onsForHostname.addAll(v));
 418 //        offs.get(hostname).forEach((k,v) -> offsForHostname.addAll(v));
 419 //
 420 //
 421 //        Map<String, List<Conversation>> onsForHostnameGroupedByTlsAppDataSequence = TcpConversationUtils.groupConversationsByTlsApplicationDataPacketSequence(onsForHostname);
 422 //
 423 //
 424 //        // Extract representative sequence for ON and OFF by providing the list of conversations with
 425 //        // 'hostname' observed for each event type (the training data).
 426 //        SequenceExtraction seqExtraction = new SequenceExtraction();
 427 ////        ExtractedSequence extractedSequenceForOn = seqExtraction.extract(onsForHostname);
 428 ////        ExtractedSequence extractedSequenceForOff = seqExtraction.extract(offsForHostname);
 429 //
 430 //        ExtractedSequence extractedSequenceForOn = seqExtraction.extractByTlsAppData(onsForHostname);
 431 //        ExtractedSequence extractedSequenceForOff = seqExtraction.extractByTlsAppData(offsForHostname);
 432 //
 433 //        // Let's check how many ONs align with OFFs and vice versa (that is, how many times an event is incorrectly
 434 //        // labeled).
 435 //        int onsLabeledAsOff = 0;
 436 //        Integer[] representativeOnSeq = TcpConversationUtils.getPacketLengthSequence(extractedSequenceForOn.getRepresentativeSequence());
 437 //        Integer[] representativeOffSeq = TcpConversationUtils.getPacketLengthSequence(extractedSequenceForOff.getRepresentativeSequence());
 438 //        SequenceAlignment<Integer> seqAlg = seqExtraction.getAlignmentAlgorithm();
 439 //        for (Conversation c : onsForHostname) {
 440 //            Integer[] onSeq = TcpConversationUtils.getPacketLengthSequence(c);
 441 //            if (seqAlg.calculateAlignment(representativeOffSeq, onSeq) <= extractedSequenceForOff.getMaxAlignmentCost()) {
 442 //                onsLabeledAsOff++;
 443 //            }
 444 //        }
 445 //        int offsLabeledAsOn = 0;
 446 //        for (Conversation c : offsForHostname) {
 447 //            Integer[] offSeq = TcpConversationUtils.getPacketLengthSequence(c);
 448 //            if (seqAlg.calculateAlignment(representativeOnSeq, offSeq) <= extractedSequenceForOn.getMaxAlignmentCost()) {
 449 //                offsLabeledAsOn++;
 450 //            }
 451 //        }
 452 //        System.out.println("");
 453 //        // ================================================================================================
 454 //
 455 //
 456 //        // -------------------------------------------------------------------------------------------------------------
 457 //        // -------------------------------------------------------------------------------------------------------------
 458     }
 459
 460 }
 461
 462
 463 // TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)
 464 // frame.len >= 556 && frame.len <= 558 && ip.addr == 192.168.1.159