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

   1 package edu.uci.iotproject;
   2
   3 import edu.uci.iotproject.analysis.PcapPacketPair;
   4 import edu.uci.iotproject.analysis.TcpConversationUtils;
   5 import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
   6 import edu.uci.iotproject.io.TriggerTimesFileReader;
   7 import org.pcap4j.core.*;
   8 import org.pcap4j.packet.IpV4Packet;
   9 import org.pcap4j.packet.namednumber.DataLinkType;
  10
  11 import java.io.EOFException;
  12 import java.net.UnknownHostException;
  13 import java.time.Instant;
  14 import java.util.ArrayList;
  15 import java.util.Collections;
  16 import java.util.HashMap;
  17 import java.util.List;
  18 import java.util.concurrent.TimeoutException;
  19
  20 /**
  21  * This is a system that reads PCAP files to compare
  22  * patterns of DNS hostnames, packet sequences, and packet
  23  * lengths with training data to determine certain events
  24  * or actions for smart home devices.
  25  *
  26  * @author Janus Varmarken
  27  * @author Rahmadi Trimananda (rtrimana@uci.edu)
  28  * @version 0.1
  29  */
  30 public class Main {
  31
  32
  33     public static void main(String[] args) throws PcapNativeException, NotOpenException, EOFException, TimeoutException, UnknownHostException {
  34         // -------------------------------------------------------------------------------------------------------------
  35         // Example/debug code for searching for a pattern at the MAC layer.
  36 //        String fileName = "./pcap/mac-tplink.local.pcapng";
  37 //        PcapHandle handle;
  38 //        try {
  39 //            handle = Pcaps.openOffline(fileName, PcapHandle.TimestampPrecision.NANO);
  40 //        } catch (PcapNativeException pne) {
  41 //            handle = Pcaps.openOffline(fileName);
  42 //        }
  43 //        Arrays.asList(1590, 1590, 1590, 1001, 337, 197, 636, 1311, 177) // Full pattern (all non-zero payload packets).
  44 //        MacLayerFlowPattern pattern = new MacLayerFlowPattern("TP_LINK_LOCAL_OFF_MAC", "50:c7:bf:33:1f:09", Arrays.asList(637, 1312));
  45 //        MacLayerFlowPatternFinder finder = new MacLayerFlowPatternFinder(handle, pattern);
  46 //        finder.findFlowPattern();
  47         // -------------------------------------------------------------------------------------------------------------
  48 //
  49 //        //final String fileName = args.length > 0 ? args[0] : "/home/rtrimana/pcap_processing/smart_home_traffic/Code/Projects/SmartPlugDetector/pcap/wlan1.local.dns.pcap";
  50 //        final String fileName = args.length > 0 ? args[0] : "/scratch/June-2018/TPLink/wlan1/tplink.wlan1.local.pcap";
  51 //        //final String fileName = args.length > 0 ? args[0] : "/scratch/June-2018/DLink/wlan1/dlink.wlan1.local.pcap";
  52 //        final String trainingFileName = "./pcap/TP_LINK_LOCAL_ON_SUBSET.pcap";
  53 ////        final String trainingFileName = "./pcap/TP_LINK_LOCAL_ON.pcap";
  54 ////
  55 ////        // ====== Debug code ======
  56 //        PcapHandle handle;
  57 //        PcapHandle trainingPcap;
  58 //        try {
  59 //            handle = Pcaps.openOffline(fileName, PcapHandle.TimestampPrecision.NANO);
  60 //            trainingPcap = Pcaps.openOffline(trainingFileName, PcapHandle.TimestampPrecision.NANO);
  61 //        } catch (PcapNativeException pne) {
  62 //            handle = Pcaps.openOffline(fileName);
  63 //            trainingPcap = Pcaps.openOffline(trainingFileName);
  64 //        }
  65 ////
  66 ////        // TODO: The followings are the way to extract multiple hostnames and their associated packet lengths lists
  67 ////        //List<String> list = new ArrayList<>();
  68 ////        //list.add("events.tplinkra.com");
  69 ////        //FlowPattern fp = new FlowPattern("TP_LINK_LOCAL_ON", list, trainingPcap);
  70 ////        //List<String> list2 = new ArrayList<>();
  71 ////        //list2.add("devs.tplinkcloud.com");
  72 ////        //list2.add("events.tplinkra.com");
  73 ////        //FlowPattern fp3 = new FlowPattern("TP_LINK_REMOTE_ON", list2, trainingPcap);
  74 ////
  75 //        FlowPattern fp = new FlowPattern("TP_LINK_LOCAL_ON", "events.tplinkra.com", trainingPcap);
  76 //        //FlowPattern fp = new FlowPattern("DLINK_LOCAL_ON", "rfe-us-west-1.dch.dlink.com", trainingPcap);
  77 //        FlowPatternFinder fpf = new FlowPatternFinder(handle, fp);
  78 //        fpf.start();
  79 ////
  80 ////        // ========================
  81
  82         /*
  83         PcapReader pcapReader = new PcapReader(args[0]);
  84         PcapProcessingPipeline pipeline = new PcapProcessingPipeline(pcapReader);
  85         TcpReassembler tcpReassembler = new TcpReassembler();
  86         pipeline.addPcapPacketConsumer(tcpReassembler);
  87         pipeline.executePipeline();
  88         System.out.println("Pipeline terminated");
  89
  90         List<List<PcapPacketPair>> pairs = new ArrayList<>();
  91         for (Conversation c : tcpReassembler.getTcpConversations()) {
  92             pairs.add(TcpConversationUtils.extractPacketPairs(c));
  93         }
  94         */
  95
  96         /*
  97         // -------- 07-17-2018 --------
  98         // Only consider packets to/from the TP-Link plug.
  99         PcapReader pcapReader = new PcapReader(args[0], "ip host 192.168.1.159");
 100         TcpReassembler tcpReassembler = new TcpReassembler();
 101         PcapPacket packet;
 102         while((packet = pcapReader.readNextPacket()) != null) {
 103             tcpReassembler.consumePacket(packet);
 104         }
 105         // Now we have a set of reassembled TCP conversations.
 106         List<Conversation> conversations = tcpReassembler.getTcpConversations();
 107         for(Conversation c : conversations) {
 108             List<PcapPacketPair> pairs = TcpConversationUtils.extractPacketPairs(c);
 109             for (PcapPacketPair pair : pairs) {
 110                 // TODO ...
 111                 // 1. discard packets that are not within X seconds after trigger time
 112                 // 2. conversations may be (are) with different servers - so need to plot in different plots, one per hostname?
 113             }
 114         }
 115
 116         // ----------------------------
 117         */
 118
 119         // -------- 07-19-2018 --------
 120         TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
 121         List<Instant> triggerTimes = ttfr.readTriggerTimes("/Users/varmarken/Downloads/tplink-feb-13-2018.timestamps", false);
 122 //        triggerTimes.stream().forEach(i -> System.out.println(i.atZone(TriggerTimesFileReader.ZONE_ID_LOS_ANGELES).toString()));
 123         String pcapFile = "/Users/varmarken/Development/Repositories/UCI/NetworkingGroup/smart_home_traffic/Code/Projects/SmartPlugDetector/pcap/wlan1.local.dns.pcap";
 124         String tpLinkPlugIp = "192.168.1.159";
 125         TriggerTrafficExtractor tte = new TriggerTrafficExtractor(pcapFile, triggerTimes, tpLinkPlugIp);
 126         final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen("/Users/varmarken/temp/traces/output/tplink-filtered.pcap");
 127         DnsMap dnsMap = new DnsMap();
 128         TcpReassembler tcpReassembler = new TcpReassembler();
 129         tte.performExtraction(pkt -> {
 130             try {
 131                 outputter.dump(pkt);
 132             } catch (NotOpenException e) {
 133                 e.printStackTrace();
 134             }
 135         }, dnsMap, tcpReassembler);
 136         outputter.flush();
 137         outputter.close();
 138
 139         int packets = 0;
 140         for (Conversation c : tcpReassembler.getTcpConversations()) {
 141             packets += c.getPackets().size();
 142             packets += c.getSynPackets().size();
 143             // only count the FIN packets, not the ACKs; every FinAckPair holds a FIN packet
 144             packets += c.getFinAckPairs().size();
 145         }
 146         // Produces 271 packets for the Feb 13 experiment
 147         // Applying filter: "(tcp and not tcp.len == 0 and not tcp.analysis.retransmission and not tcp.analysis.fast_retransmission)  or (tcp.flags.syn == 1) or (tcp.flags.fin == 1)"
 148         // to the file gives 295 packets, but there are 24 TCP-Out-Of-Order SYN/SYNACKs which are filtered as retransmissions in Conversation, so the numbers seem to match.
 149         System.out.println("number of packets: " + packets);
 150
 151         List<List<PcapPacketPair>> pairs = new ArrayList<>();
 152         for (Conversation c : tcpReassembler.getTcpConversations()) {
 153             pairs.add(TcpConversationUtils.extractPacketPairs(c));
 154         }
 155         // Sort pairs according to timestamp of first packet of conversation for (debugging) convenience.
 156         Collections.sort(pairs, (l1, l2) -> {
 157             if (l1.get(0).getFirst().getTimestamp().isBefore(l2.get(0).getFirst().getTimestamp())) return -1;
 158             else if (l2.get(0).getFirst().getTimestamp().isBefore(l1.get(0).getFirst().getTimestamp())) return 1;
 159             else return 0;
 160         });
 161         System.out.println("list of pairs produced");
 162         List<PcapPacketPair> eventstplinkraPairs = new ArrayList<>();
 163         List<List<PcapPacketPair>> otherPairs = new ArrayList<>();
 164         String hostname = "events.tplinkra.com";
 165         for (List<PcapPacketPair> lppp : pairs) {
 166             IpV4Packet ipPacket = lppp.get(0).getFirst().get(IpV4Packet.class);
 167             // If packets are associated with the hostname
 168             if (dnsMap.isRelatedToCloudServer(ipPacket.getHeader().getSrcAddr().getHostAddress(), hostname) ||
 169                     dnsMap.isRelatedToCloudServer(ipPacket.getHeader().getDstAddr().getHostAddress(), hostname)) {
 170                 eventstplinkraPairs.addAll(lppp);
 171             } else {
 172                 // Pairs associated with different server
 173                 otherPairs.add(lppp);
 174             }
 175         }
 176         HashMap<String, Integer> pairCount = new HashMap<>();
 177         for (PcapPacketPair ppp : eventstplinkraPairs) {
 178             if (pairCount.containsKey(ppp.toString())) {
 179                 pairCount.put(ppp.toString(), pairCount.get(ppp.toString()) + 1);
 180             } else {
 181                 pairCount.put(ppp.toString(), 1);
 182             }
 183         }
 184         System.out.println("pairCount map built");
 185         // ----------------------------
 186     }
 187
 188 }
 189
 190
 191 // TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)