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

   1 package edu.uci.iotproject;
   2
   3 import edu.uci.iotproject.analysis.TcpConversationUtils;
   4 import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
   5 import edu.uci.iotproject.io.TriggerTimesFileReader;
   6 import org.pcap4j.core.*;
   7 import org.pcap4j.packet.namednumber.DataLinkType;
   8
   9 import java.io.EOFException;
  10 import java.net.UnknownHostException;
  11 import java.time.Instant;
  12 import java.util.*;
  13 import java.util.concurrent.TimeoutException;
  14
  15 /**
  16  * This is a system that reads PCAP files to compare
  17  * patterns of DNS hostnames, packet sequences, and packet
  18  * lengths with training data to determine certain events
  19  * or actions for smart home devices.
  20  *
  21  * @author Janus Varmarken
  22  * @author Rahmadi Trimananda (rtrimana@uci.edu)
  23  * @version 0.1
  24  */
  25 public class Main {
  26
  27
  28     public static void main(String[] args) throws PcapNativeException, NotOpenException, EOFException, TimeoutException, UnknownHostException {
  29         // -------------------------------------------------------------------------------------------------------------
  30         // ------------ # Code for extracting traffic generated by a device within x seconds of a trigger # ------------
  31         // Paths to input and output files (consider supplying these as arguments instead)
  32         final String inputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink.wlan1.local.pcap";
  33         final String outputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink-processed.pcap";
  34         final String triggerTimesFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink-july-25-2018.timestamps";
  35         // IP of the device for which traffic is to be extracted
  36         final String deviceIp = "192.168.1.159";
  37
  38         TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
  39         List<Instant> triggerTimes = ttfr.readTriggerTimes(triggerTimesFile, false);
  40         TriggerTrafficExtractor tte = new TriggerTrafficExtractor(inputPcapFile, triggerTimes, deviceIp);
  41         final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen(outputPcapFile);
  42         DnsMap dnsMap = new DnsMap();
  43         TcpReassembler tcpReassembler = new TcpReassembler();
  44         tte.performExtraction(pkt -> {
  45             try {
  46                 outputter.dump(pkt);
  47             } catch (NotOpenException e) {
  48                 e.printStackTrace();
  49             }
  50         }, dnsMap, tcpReassembler);
  51         outputter.flush();
  52         outputter.close();
  53
  54         // Extract all conversations present in the filtered trace.
  55         List<Conversation> allConversations = tcpReassembler.getTcpConversations();
  56         // Group conversations by hostname.
  57         Map<String, List<Conversation>> convsByHostname = TcpConversationUtils.groupConversationsByHostname(allConversations, dnsMap);
  58         System.out.println("Grouped conversations by hostname.");
  59         // For each hostname, count the frequencies of packet lengths exchanged with that hostname.
  60         final Map<String, Map<Integer, Integer>> pktLenFreqsByHostname = new HashMap<>();
  61         convsByHostname.forEach((host, convs) -> pktLenFreqsByHostname.put(host, TcpConversationUtils.countPacketLengthFrequencies(convs)));
  62         System.out.println("Counted frequencies of packet lengths exchanged with each hostname.");
  63         // For each hostname, count the frequencies of packet sequences (i.e., count how many conversations exchange a
  64         // sequence of packets of some specific lengths).
  65         final Map<String, Map<String, Integer>> pktSeqFreqsByHostname = new HashMap<>();
  66         convsByHostname.forEach((host, convs) -> pktSeqFreqsByHostname.put(host, TcpConversationUtils.countPacketSequenceFrequencies(convs)));
  67         System.out.println("Counted frequencies of packet sequences exchanged with each hostname.");
  68
  69
  70
  71         // -------------------------------------------------------------------------------------------------------------
  72         // -------------------------------------------------------------------------------------------------------------
  73     }
  74
  75 }
  76
  77
  78 // TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)