1 package edu.uci.iotproject;
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.namednumber.DataLinkType;
10 import java.io.EOFException;
11 import java.net.UnknownHostException;
12 import java.time.Instant;
13 import java.util.ArrayList;
14 import java.util.Collections;
15 import java.util.List;
16 import java.util.concurrent.TimeoutException;
19 * This is a system that reads PCAP files to compare
20 * patterns of DNS hostnames, packet sequences, and packet
21 * lengths with training data to determine certain events
22 * or actions for smart home devices.
24 * @author Janus Varmarken
25 * @author Rahmadi Trimananda (rtrimana@uci.edu)
31 public static void main(String[] args) throws PcapNativeException, NotOpenException, EOFException, TimeoutException, UnknownHostException {
32 // -------------------------------------------------------------------------------------------------------------
33 // Example/debug code for searching for a pattern at the MAC layer.
34 // String fileName = "./pcap/mac-tplink.local.pcapng";
37 // handle = Pcaps.openOffline(fileName, PcapHandle.TimestampPrecision.NANO);
38 // } catch (PcapNativeException pne) {
39 // handle = Pcaps.openOffline(fileName);
41 // Arrays.asList(1590, 1590, 1590, 1001, 337, 197, 636, 1311, 177) // Full pattern (all non-zero payload packets).
42 // MacLayerFlowPattern pattern = new MacLayerFlowPattern("TP_LINK_LOCAL_OFF_MAC", "50:c7:bf:33:1f:09", Arrays.asList(637, 1312));
43 // MacLayerFlowPatternFinder finder = new MacLayerFlowPatternFinder(handle, pattern);
44 // finder.findFlowPattern();
45 // -------------------------------------------------------------------------------------------------------------
47 // //final String fileName = args.length > 0 ? args[0] : "/home/rtrimana/pcap_processing/smart_home_traffic/Code/Projects/SmartPlugDetector/pcap/wlan1.local.dns.pcap";
48 // final String fileName = args.length > 0 ? args[0] : "/scratch/June-2018/TPLink/wlan1/tplink.wlan1.local.pcap";
49 // //final String fileName = args.length > 0 ? args[0] : "/scratch/June-2018/DLink/wlan1/dlink.wlan1.local.pcap";
50 // final String trainingFileName = "./pcap/TP_LINK_LOCAL_ON_SUBSET.pcap";
51 //// final String trainingFileName = "./pcap/TP_LINK_LOCAL_ON.pcap";
53 //// // ====== Debug code ======
55 // PcapHandle trainingPcap;
57 // handle = Pcaps.openOffline(fileName, PcapHandle.TimestampPrecision.NANO);
58 // trainingPcap = Pcaps.openOffline(trainingFileName, PcapHandle.TimestampPrecision.NANO);
59 // } catch (PcapNativeException pne) {
60 // handle = Pcaps.openOffline(fileName);
61 // trainingPcap = Pcaps.openOffline(trainingFileName);
64 //// // TODO: The followings are the way to extract multiple hostnames and their associated packet lengths lists
65 //// //List<String> list = new ArrayList<>();
66 //// //list.add("events.tplinkra.com");
67 //// //FlowPattern fp = new FlowPattern("TP_LINK_LOCAL_ON", list, trainingPcap);
68 //// //List<String> list2 = new ArrayList<>();
69 //// //list2.add("devs.tplinkcloud.com");
70 //// //list2.add("events.tplinkra.com");
71 //// //FlowPattern fp3 = new FlowPattern("TP_LINK_REMOTE_ON", list2, trainingPcap);
73 // FlowPattern fp = new FlowPattern("TP_LINK_LOCAL_ON", "events.tplinkra.com", trainingPcap);
74 // //FlowPattern fp = new FlowPattern("DLINK_LOCAL_ON", "rfe-us-west-1.dch.dlink.com", trainingPcap);
75 // FlowPatternFinder fpf = new FlowPatternFinder(handle, fp);
78 //// // ========================
81 PcapReader pcapReader = new PcapReader(args[0]);
82 PcapProcessingPipeline pipeline = new PcapProcessingPipeline(pcapReader);
83 TcpReassembler tcpReassembler = new TcpReassembler();
84 pipeline.addPcapPacketConsumer(tcpReassembler);
85 pipeline.executePipeline();
86 System.out.println("Pipeline terminated");
88 List<List<PcapPacketPair>> pairs = new ArrayList<>();
89 for (Conversation c : tcpReassembler.getTcpConversations()) {
90 pairs.add(TcpConversationUtils.extractPacketPairs(c));
95 // -------- 07-17-2018 --------
96 // Only consider packets to/from the TP-Link plug.
97 PcapReader pcapReader = new PcapReader(args[0], "ip host 192.168.1.159");
98 TcpReassembler tcpReassembler = new TcpReassembler();
100 while((packet = pcapReader.readNextPacket()) != null) {
101 tcpReassembler.consumePacket(packet);
103 // Now we have a set of reassembled TCP conversations.
104 List<Conversation> conversations = tcpReassembler.getTcpConversations();
105 for(Conversation c : conversations) {
106 List<PcapPacketPair> pairs = TcpConversationUtils.extractPacketPairs(c);
107 for (PcapPacketPair pair : pairs) {
109 // 1. discard packets that are not within X seconds after trigger time
110 // 2. conversations may be (are) with different servers - so need to plot in different plots, one per hostname?
114 // ----------------------------
117 // -------- 07-19-2018 --------
118 TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
119 List<Instant> triggerTimes = ttfr.readTriggerTimes("/Users/varmarken/Downloads/tplink-feb-13-2018.timestamps", false);
120 // triggerTimes.stream().forEach(i -> System.out.println(i.atZone(TriggerTimesFileReader.ZONE_ID_LOS_ANGELES).toString()));
121 String pcapFile = "/Users/varmarken/Development/Repositories/UCI/NetworkingGroup/smart_home_traffic/Code/Projects/SmartPlugDetector/pcap/wlan1.local.dns.pcap";
122 String tpLinkPlugIp = "192.168.1.159";
123 TriggerTrafficExtractor tte = new TriggerTrafficExtractor(pcapFile, triggerTimes, tpLinkPlugIp);
124 final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen("/Users/varmarken/temp/traces/output/tplink-filtered.pcap");
125 TcpReassembler tcpReassembler = new TcpReassembler();
126 tte.performExtraction(pkt -> {
129 } catch (NotOpenException e) {
137 for (Conversation c : tcpReassembler.getTcpConversations()) {
138 packets += c.getPackets().size();
139 packets += c.getSynPackets().size();
140 // only count the FIN packets, not the ACKs; every FinAckPair holds a FIN packet
141 packets += c.getFinAckPairs().size();
143 // Produces 271 packets for the Feb 13 experiment
144 // 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)"
145 // 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.
146 System.out.println("number of packets: " + packets);
148 List<List<PcapPacketPair>> pairs = new ArrayList<>();
149 for (Conversation c : tcpReassembler.getTcpConversations()) {
150 pairs.add(TcpConversationUtils.extractPacketPairs(c));
152 // Sort pairs according to timestamp of first packet of conversation for (debugging) convenience.
153 Collections.sort(pairs, (l1, l2) -> {
154 if (l1.get(0).getFirst().getTimestamp().isBefore(l2.get(0).getFirst().getTimestamp())) return -1;
155 else if (l2.get(0).getFirst().getTimestamp().isBefore(l1.get(0).getFirst().getTimestamp())) return 1;
158 System.out.println("list of pairs produced");
159 // ----------------------------
165 // TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)