udp port listing issues

summitt · Oct 6, 2023 · 89d9770 · 89d9770
1 parent c9b8468
commit 89d9770
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Showing 2 changed files with 21 additions and 7 deletions.
diff --git a/NonHTTPProxy/src/josh/ui/utils/ListenerDB.java b/NonHTTPProxy/src/josh/ui/utils/ListenerDB.java
@@ -92,7 +92,6 @@ public static void remove(ListenerSetting ls){
  Session s = HibHelper.getSessionFactory().openSession();
  List<ListenerSetting> list = (List<ListenerSetting>)s.createQuery("from ListenerSetting").list();
  System.out.println("Reading DB");
- System.out.println(list.get(0).isUdp());
  s.close();
  return list;
 

diff --git a/NonHTTPProxy/src/josh/utils/Lister.java b/NonHTTPProxy/src/josh/utils/Lister.java
@@ -38,6 +38,7 @@ public class Lister implements Runnable {
  private ExecutorService pool;
  private PcapHandle handle;
  private HashMap<String, String> portsFound = new HashMap<String, String>();
+ private ArrayList<String> ephemeralPorts = new ArrayList<String>();
 
  public Lister(String IP) {
  this.IP = IP;
@@ -64,15 +65,23 @@ public void run() {
  return;
  }
  handle = nif.openLive(65536, PromiscuousMode.PROMISCUOUS, 10);
- System.out.println("(tcp or udp) and not dns and ip.dst == " + this.IP);
- handle.setFilter("(tcp or udp) and !port 53 and dst net " + this.IP, BpfCompileMode.OPTIMIZE);
+ handle.setFilter("(tcp or udp) and !port 53 and !port 5353 and dst net " + this.IP, BpfCompileMode.OPTIMIZE);
 
  PacketListener listener = new PacketListener() {
  @Override
  public void gotPacket(Packet packet) {
- TcpPacket tcp = packet.get(TcpPacket.class);
- UdpPacket udp = packet.get(UdpPacket.class);
+ boolean isUDP = packet.contains(UdpPacket.class);
+ boolean isTCP = packet.contains(TcpPacket.class);
  IpV4Packet ip = packet.get(IpV4Packet.class);
+ TcpPacket tcp = null; 
+ UdpPacket udp = null; 
+ if(isUDP){
+ udp = packet.get(UdpPacket.class);
+ }else if(isTCP){
+ tcp = packet.get(TcpPacket.class);
+
+ }
+
 
  if ((udp == null && tcp == null) || ip == null)
  return;
@@ -84,16 +93,22 @@ public void gotPacket(Packet packet) {
  String service = "";
  int destPort=-1;
 
- if (tcp != null && tcp.getHeader().getSyn() && !tcp.getHeader().getAck()) {
+ if (!isUDP && tcp.getHeader().getSyn() && !tcp.getHeader().getAck()) {
  key += tcp.getHeader().getDstPort().valueAsInt() + ":" + proto;
  service = tcp.getHeader().getDstPort().name();
  destPort = tcp.getHeader().getDstPort().valueAsInt();
  }
- else if (udp != null) {
+ else if (isUDP && udp.getHeader().getDstPort().valueAsInt()<=10000) {
  proto= "UDP";
  key += udp.getHeader().getDstPort().valueAsInt() + ":" + proto;
  service = udp.getHeader().getDstPort().name();
  destPort = udp.getHeader().getDstPort().valueAsInt();
+ System.out.println(udp.getHeader() + " " 
+ + udp.getHeader().getDstPort() + " "
+ + ip.getHeader().getSrcAddr().getHostAddress() + " "
+ + ip.getHeader().getDstAddr().getHostAddress());
+ }else{
+ return;
  }
 
  if ((portsFound.containsKey(key) && portsFound.get(key).equals(time)) || destPort == -1 )