package edu.uci.iotproject;
-import io.kaitai.struct.ByteBufferKaitaiStream;
-import io.kaitai.struct.KaitaiStruct;
-import io.kaitai.struct.KaitaiStream;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.HashMap;
-import java.util.Map;
+import edu.uci.iotproject.analysis.TcpConversationUtils;
+import edu.uci.iotproject.analysis.TriggerTrafficExtractor;
+import edu.uci.iotproject.io.TriggerTimesFileReader;
+import org.pcap4j.core.*;
+import org.pcap4j.packet.namednumber.DataLinkType;
+
+import java.io.EOFException;
+import java.net.UnknownHostException;
+import java.time.Instant;
+import java.util.*;
+import java.util.concurrent.TimeoutException;
/**
* This is a system that reads PCAP files to compare
public class Main {
- /**
- * Private class properties
- */
- private Pcap pcap;
- private List<Pcap.Packet> listPacket;
- private Map<String, List<byte[]>> mapHostnamesToIPAddresses;
-
- /**
- * Private class constants
- */
- private static final int DNS_PORT = 53;
-
- /**
- * Constructor
- *
- * @param file name of the analyzed PCAP file
- */
- public Main(String file) throws IOException {
-
- pcap = Pcap.fromFile(file);
- listPacket = pcap.packets();
- mapHostnamesToIPAddresses = new HashMap<String, List<byte[]>>();
- }
-
-
- /**
- * Private method that maps DNS hostnames to their
- * respected IP addresses. This method iterates
- * through the List<Pcap.Packet>, gets DNS packets,
- * and gets the IP addresses associated with them.
- */
- private void mapHostnamesToIPAddresses() {
+ public static void main(String[] args) throws PcapNativeException, NotOpenException, EOFException, TimeoutException, UnknownHostException {
+ // -------------------------------------------------------------------------------------------------------------
+ // ------------ # Code for extracting traffic generated by a device within x seconds of a trigger # ------------
+ // Paths to input and output files (consider supplying these as arguments instead) and IP of the device for
+ // which traffic is to be extracted:
+ // D-Link July 26 experiment
+ final String inputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/dlink/dlink.wlan1.local.pcap";
+ final String outputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/dlink/dlink-processed.pcap";
+ final String triggerTimesFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/dlink/dlink-july-26-2018.timestamps";
+ final String deviceIp = "192.168.1.246";
+ // TP-Link July 25 experiment
+// final String inputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink.wlan1.local.pcap";
+// final String outputPcapFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink-processed.pcap";
+// final String triggerTimesFile = "/Users/varmarken/temp/UCI IoT Project/experiments/2018-07/tplink/tplink-july-25-2018.timestamps";
+// final String deviceIp = "192.168.1.159";
- int counter = 1;
- for(Pcap.Packet packet : listPacket) {
- System.out.print("# " + counter++);
- // Check the packet type
- if (packet._root().hdr().network() == Pcap.Linktype.ETHERNET) {
- EthernetFrame ethFrame = (EthernetFrame) packet.body();
- if (ethFrame.etherType() == EthernetFrame.EtherTypeEnum.IPV4) {
- Ipv4Packet ip4Packet = (Ipv4Packet) ethFrame.body();
-
- System.out.print(" - Protocol: " + ip4Packet.protocol());
-
- if (ip4Packet.protocol() == Ipv4Packet.ProtocolEnum.UDP) {
- // DNS is UDP port 53
- UdpDatagram udpData = (UdpDatagram) ip4Packet.body();
- System.out.print(" - Source Port: " + udpData.srcPort());
- System.out.print(" - Dest Port: " + udpData.dstPort());
-
- // Source port 53 means this is DNS response
- if (udpData.srcPort() == DNS_PORT) {
- KaitaiStream dnsStream = new ByteBufferKaitaiStream(udpData.body());
- DnsPacket dnsPacket = new DnsPacket(dnsStream);
- ArrayList<DnsPacket.Answer> answers = dnsPacket.answers();
- System.out.print(" - this DNS packet has " + answers.size() + " answers.");
- }
- }
- }
+ TriggerTimesFileReader ttfr = new TriggerTimesFileReader();
+ List<Instant> triggerTimes = ttfr.readTriggerTimes(triggerTimesFile, false);
+ TriggerTrafficExtractor tte = new TriggerTrafficExtractor(inputPcapFile, triggerTimes, deviceIp);
+ final PcapDumper outputter = Pcaps.openDead(DataLinkType.EN10MB, 65536).dumpOpen(outputPcapFile);
+ DnsMap dnsMap = new DnsMap();
+ TcpReassembler tcpReassembler = new TcpReassembler();
+ tte.performExtraction(pkt -> {
+ try {
+ outputter.dump(pkt);
+ } catch (NotOpenException e) {
+ e.printStackTrace();
}
- System.out.println();
- }
- }
-
- /*private String cloudIPAddress(String hostName) {
- if (hostName.equals("events.tplinkra.com"))
- return "205.251.203.26";
- else
- return null;
- }*/
-
- // TODO move to separate class
- // Add parameter that is the trace to be analyzed (most like the pcap library's representation of a flow)
- public String findPattern(Map<String, List<Integer>> hostnameToPacketLengths, String smartPlugIp) {
+ }, dnsMap, tcpReassembler);
+ outputter.flush();
+ outputter.close();
- // No difference, output "Complete match"
- // If difference, output <Packet no, deviation from expected> for each packet
- return null;
+ // Extract all conversations present in the filtered trace.
+ List<Conversation> allConversations = tcpReassembler.getTcpConversations();
+ // Group conversations by hostname.
+ Map<String, List<Conversation>> convsByHostname = TcpConversationUtils.groupConversationsByHostname(allConversations, dnsMap);
+ System.out.println("Grouped conversations by hostname.");
+ // For each hostname, count the frequencies of packet lengths exchanged with that hostname.
+ final Map<String, Map<Integer, Integer>> pktLenFreqsByHostname = new HashMap<>();
+ convsByHostname.forEach((host, convs) -> pktLenFreqsByHostname.put(host, TcpConversationUtils.countPacketLengthFrequencies(convs)));
+ System.out.println("Counted frequencies of packet lengths exchanged with each hostname.");
+ // For each hostname, count the frequencies of packet sequences (i.e., count how many conversations exchange a
+ // sequence of packets of some specific lengths).
+ final Map<String, Map<String, Integer>> pktSeqFreqsByHostname = new HashMap<>();
+ convsByHostname.forEach((host, convs) -> pktSeqFreqsByHostname.put(host, TcpConversationUtils.countPacketSequenceFrequencies(convs)));
+ System.out.println("Counted frequencies of packet sequences exchanged with each hostname.");
+ // For each hostname, count frequencies of packet pairs exchanged with that hostname across all conversations
+ final Map<String, Map<String, Integer>> pktPairFreqsByHostname =
+ TcpConversationUtils.countPacketPairFrequenciesByHostname(allConversations, dnsMap);
+ System.out.println("Counted frequencies of packet pairs per hostname");
+ // -------------------------------------------------------------------------------------------------------------
+ // -------------------------------------------------------------------------------------------------------------
}
-
- public static void main(String[] args) {
- System.out.println("it works");
- //String file = "/scratch/traffic_measurements/Switches-Feb2018/wemo/wlan1/wlan1.setup.pcap";
- String file = "/home/rtrimana/pcap_processing/smart_home_traffic/Code/Projects/SmartPlugDetector/pcap/wlan1.local.dns.pcap";
-
- try {
- Main main = new Main(file);
- main.mapHostnamesToIPAddresses();
- /*Pcap data = Pcap.fromFile(file);
- List<Pcap.Packet> listPacket = data.packets();
- System.out.println("Number of packets: " + listPacket.size());
- System.out.println("===================");
- for(Pcap.Packet packet : listPacket) {
- if (packet._root().hdr().network() == Pcap.Linktype.ETHERNET) {
- EthernetFrame eFrame = (EthernetFrame) packet.body();
- if (eFrame.etherType() == EthernetFrame.EtherTypeEnum.IPV4) {
- Ipv4Packet ip4Packet = (Ipv4Packet) eFrame.body();
- byte[] srcIp = ip4Packet.srcIpAddr();
- byte[] dstIp = ip4Packet.dstIpAddr();
- System.out.println("Byte length source: " + srcIp.length + " Byte length dest: " + dstIp.length);
- System.out.print("Source: ");
- for(int i = 0; i < srcIp.length; i++) {
- System.out.print(Byte.toUnsignedInt(srcIp[i]));
- if(i < srcIp.length-1)
- System.out.print(".");
- }
- System.out.print(" - Dest: ");
- for(int i = 0; i < dstIp.length; i++) {
- System.out.print(Byte.toUnsignedInt(dstIp[i]));
- if(i < dstIp.length-1)
- System.out.print(".");
- else
- System.out.println("\n");
- }
- }
- }
- }*/
-
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
}
+
+
+// TP-Link MAC 50:c7:bf:33:1f:09 and usually IP 192.168.1.159 (remember to verify per file)
\ No newline at end of file
projects / pingpong.git / blobdiff