public void HandleTcpPacket(IPv4Datagram datagram)
{
TcpPacket packet = datagram.HandleTcpPacket();
ListViewItem item = new ListViewItem(count.ToString());
item.SubItems.Add(datagram.SourceName);
item.SubItems.Add(packet.SourcePort.ToString() + " " + consts.GetTcpPorts(packet.SourcePort));
item.SubItems.Add(datagram.DestinationName);
item.SubItems.Add(packet.DestinationPort.ToString() + " " + consts.GetTcpPorts(packet.DestinationPort));
item.SubItems.Add(datagram.Identification.ToString());
item.SubItems.Add(packet.Sequence.ToString());
lstwTcp.Items.Add(item);
packets.Add(GetHashString(), datagram); //Bu iki IP cifti ile ilgili tum Datagramlar
count++;
lblCount.Text = count.ToString();
this.Update();
}
public void addPacket(IPv4Datagram datagram, ref TreeView trv)
{
int [] xx = new int[4];
int total = datagram.Length + datagram.IHL;
trv.Nodes.Clear();
TreeNode tn = new TreeNode("Packet (Size : " + total.ToString() + " )");
xx[0] = 0; xx[1] = total * 8 - 1; tn.Tag = xx;
tn.ImageIndex = 2;
tn.Nodes.Add("IP");
xx = new int[4]; xx[0] = 0; xx[1] = datagram.IHL * 8 - 1; tn.Nodes[0].Tag = xx;
tn.Nodes[0].ImageIndex = 1;
tn.Nodes[0].Nodes.Add("Version : 4");
xx = new int[4]; xx[0] = 0; xx[1] = 3; tn.Nodes[0].Nodes[0].Tag = xx;
tn.Nodes[0].Nodes[0].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("IHL : " + datagram.IHL);
xx = new int[4]; xx[0] = 4; xx[1] = 7; tn.Nodes[0].Nodes[1].Tag = xx;
tn.Nodes[0].Nodes[1].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Service Type : " + consts.GetTOSForIP(datagram.TypeOfService));
xx = new int[4]; xx[0] = 8; xx[1] = 15; tn.Nodes[0].Nodes[2].Tag = xx;
tn.Nodes[0].Nodes[2].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Total Length : " + total.ToString());
xx = new int[4]; xx[0] = 16; xx[1] = 31; tn.Nodes[0].Nodes[3].Tag = xx;
tn.Nodes[0].Nodes[3].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Identification : " + datagram.Identification.ToString());
xx = new int[4]; xx[0] = 32; xx[1] = 47; tn.Nodes[0].Nodes[4].Tag = xx;
tn.Nodes[0].Nodes[4].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Ip Flags");
xx = new int[4]; xx[0] = 48; xx[1] = 50; tn.Nodes[0].Nodes[5].Tag = xx;
tn.Nodes[0].Nodes[5].ImageIndex = 4;
tn.Nodes[0].Nodes[5].Nodes.Add("Reserved Flag : " + datagram.ReservedFlag.ToString());
xx = new int[4]; xx[0] = 48; xx[1] = 48; tn.Nodes[0].Nodes[5].Nodes[0].Tag = xx;
tn.Nodes[0].Nodes[5].Nodes[0].ImageIndex = 3;
tn.Nodes[0].Nodes[5].Nodes.Add("Dont Fragment : " + datagram.DontFragmentFlag.ToString());
xx = new int[4]; xx[0] = 49; xx[1] = 49; tn.Nodes[0].Nodes[5].Nodes[1].Tag = xx;
tn.Nodes[0].Nodes[5].Nodes[1].ImageIndex = 3;
tn.Nodes[0].Nodes[5].Nodes.Add("More Flag : " + datagram.MoreFlag.ToString());
xx = new int[4]; xx[0] = 50; xx[1] = 50; tn.Nodes[0].Nodes[5].Nodes[2].Tag = xx;
tn.Nodes[0].Nodes[5].Nodes[2].ImageIndex = 3;
tn.Nodes[0].Nodes.Add("Fragment Offset : " + datagram.FragmentOffset.ToString());
xx = new int[4]; xx[0] = 51; xx[1] = 63; tn.Nodes[0].Nodes[6].Tag = xx;
tn.Nodes[0].Nodes[6].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("TTL : " + datagram.TTL.ToString());
xx = new int[4]; xx[0] = 64; xx[1] = 71; tn.Nodes[0].Nodes[7].Tag = xx;
tn.Nodes[0].Nodes[7].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Upper Protcol : " + datagram.UpperProtocol);
xx = new int[4]; xx[0] = 72; xx[1] = 79; tn.Nodes[0].Nodes[8].Tag = xx;
tn.Nodes[0].Nodes[8].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("CheckSum : " + datagram.Checksum.ToString());
xx = new int[4]; xx[0] = 80; xx[1] = 95; tn.Nodes[0].Nodes[9].Tag = xx;
tn.Nodes[0].Nodes[9].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Source : " + datagram.SourceName);
xx = new int[4]; xx[0] = 96; xx[1] = 127; tn.Nodes[0].Nodes[10].Tag = xx;
tn.Nodes[0].Nodes[10].ImageIndex = 4;
tn.Nodes[0].Nodes.Add("Destination : " + datagram.DestinationName);
xx = new int[4]; xx[0] = 128; xx[1] = 159; tn.Nodes[0].Nodes[11].Tag = xx;
tn.Nodes[0].Nodes[11].ImageIndex = 4;
if (datagram.IHL == 24)
{
tn.Nodes[0].Nodes.Add("Options (+Padding): " + datagram.Options.ToString());
xx = new int[4]; xx[0] = 160; xx[1] = datagram.IHL * 8 - 1; tn.Nodes[0].Nodes[12].Tag = xx;
tn.Nodes[0].Nodes[12].ImageIndex = 4;
}
if (datagram.UpperProtocol == "Tcp")
{
TcpPacket tcpPacket = datagram.HandleTcpPacket();
tn.Nodes.Add("Tcp");
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Tag = xx;
tn.Nodes[1].ImageIndex = 1;
tn.Nodes[1].Nodes.Add("Source Port : " + tcpPacket.SourcePort.ToString() + " " + consts.GetTcpPorts(tcpPacket.SourcePort));
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = datagram.IHL * 8 + 15; tn.Nodes[1].Nodes[0].Tag = xx;
tn.Nodes[1].Nodes[0].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Destination Port : " + tcpPacket.DestinationPort.ToString() + " " + consts.GetTcpPorts(tcpPacket.DestinationPort));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 16; xx[1] = datagram.IHL * 8 + 31; tn.Nodes[1].Nodes[1].Tag = xx;
tn.Nodes[1].Nodes[1].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Sequence : " + tcpPacket.Sequence);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 32; xx[1] = datagram.IHL * 8 + 63; tn.Nodes[1].Nodes[2].Tag = xx;
tn.Nodes[1].Nodes[2].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Acknowledgement : " + tcpPacket.Acknowledgement);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 64; xx[1] = datagram.IHL * 8 + 95; tn.Nodes[1].Nodes[3].Tag = xx;
tn.Nodes[1].Nodes[3].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Header Length : " + tcpPacket.DataOffset);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 96; xx[1] = datagram.IHL * 8 + 99; tn.Nodes[1].Nodes[4].Tag = xx;
tn.Nodes[1].Nodes[4].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Flags");
xx = new int[4]; xx[0] = datagram.IHL * 8 + 106; xx[1] = datagram.IHL * 8 + 111; tn.Nodes[1].Nodes[5].Tag = xx;
tn.Nodes[1].Nodes[5].ImageIndex = 4;
tn.Nodes[1].Nodes[5].Nodes.Add("x..... URG : " + ((tcpPacket.Urgent)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 106; xx[1] = datagram.IHL * 8 + 106; tn.Nodes[1].Nodes[5].Nodes[0].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[0].ImageIndex = 3;
tn.Nodes[1].Nodes[5].Nodes.Add(".x.... AKC : " + ((tcpPacket.Ack)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 107; xx[1] = datagram.IHL * 8 + 107; tn.Nodes[1].Nodes[5].Nodes[1].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[1].ImageIndex = 3;
tn.Nodes[1].Nodes[5].Nodes.Add("..x... EOL : " + ((tcpPacket.Push)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 108; xx[1] = datagram.IHL * 8 + 108; tn.Nodes[1].Nodes[5].Nodes[2].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[2].ImageIndex = 3;
tn.Nodes[1].Nodes[5].Nodes.Add("...x.. RST : " + ((tcpPacket.Reset)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 109; xx[1] = datagram.IHL * 8 + 109; tn.Nodes[1].Nodes[5].Nodes[3].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[3].ImageIndex = 3;
tn.Nodes[1].Nodes[5].Nodes.Add("....x. SYN : " + ((tcpPacket.Syn)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 110; xx[1] = datagram.IHL * 8 + 110; tn.Nodes[1].Nodes[5].Nodes[4].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[4].ImageIndex = 3;
tn.Nodes[1].Nodes[5].Nodes.Add(".....x FIN : " + ((tcpPacket.Fin)? 1 : 0));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 111; xx[1] = datagram.IHL * 8 + 111; tn.Nodes[1].Nodes[5].Nodes[5].Tag = xx;
tn.Nodes[1].Nodes[5].Nodes[5].ImageIndex = 3;
tn.Nodes[1].Nodes.Add("Window : " + tcpPacket.WindowSize);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 112; xx[1] = datagram.IHL * 8 + 127; tn.Nodes[1].Nodes[6].Tag = xx;
tn.Nodes[1].Nodes[6].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Checksum : " + tcpPacket.Checksum);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 128; xx[1] = datagram.IHL * 8 + 143; tn.Nodes[1].Nodes[7].Tag = xx;
tn.Nodes[1].Nodes[7].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Urgent Pointer : " + tcpPacket.UrgentPointer);
xx = new int[4]; xx[0] = datagram.IHL * 8 + 144; xx[1] = datagram.IHL * 8 + 159; tn.Nodes[1].Nodes[8].Tag = xx;
tn.Nodes[1].Nodes[8].ImageIndex = 4;
if (tcpPacket.DataOffset > 20)
{
tn.Nodes[1].Nodes.Add("Options + Padding : .....");
xx = new int[4]; xx[0] = datagram.IHL * 8 + 160; xx[1] = datagram.IHL * 8 + tcpPacket.DataOffset * 8 - 1; tn.Nodes[1].Nodes[9].Tag = xx;
tn.Nodes[1].Nodes[9].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Data : " + ".....");
xx = new int[4]; xx[0] = datagram.IHL * 8 + tcpPacket.DataOffset * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[10].Tag = xx;
tn.Nodes[1].Nodes[10].ImageIndex = 4;
}
else
{
tn.Nodes[1].Nodes.Add("Data : " + ".....");
xx = new int[4]; xx[0] = datagram.IHL * 8 + tcpPacket.DataOffset * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[9].Tag = xx;
tn.Nodes[1].Nodes[9].ImageIndex = 4;
}
}
else if (datagram.UpperProtocol == "Udp")
{
UdpDatagram udpDatagram = datagram.HandleUdpDatagram();
tn.Nodes.Add("Udp");
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Tag = xx;
tn.Nodes[1].ImageIndex = 1;
tn.Nodes[1].Nodes.Add("Source Port : " + udpDatagram.SourcePort.ToString() + " " + consts.GetTcpPorts(udpDatagram.SourcePort));
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = datagram.IHL * 8 + 15; tn.Nodes[1].Nodes[0].Tag = xx;
tn.Nodes[1].Nodes[0].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Destination Port : " + udpDatagram.DestinationPort.ToString() + " " + consts.GetTcpPorts(udpDatagram.DestinationPort));
xx = new int[4]; xx[0] = datagram.IHL * 8 + 16; xx[1] = datagram.IHL * 8 + 31; tn.Nodes[1].Nodes[1].Tag = xx;
tn.Nodes[1].Nodes[1].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Other Fields + Data : " + ".....");
xx = new int[4]; xx[0] = datagram.IHL * 8 + 32; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[2].Tag = xx;
tn.Nodes[1].Nodes[2].ImageIndex = 4;
// tn.Nodes[15].Nodes.Add("Length : "+udpDatagram.Length);
// tn.Nodes[15].Nodes.Add("Checksum : "+udpDatagram.Checksum);
}
else if (datagram.UpperProtocol == "ICMP")
{
IcmpPacket IPacket = datagram.HandleIcmpPacket();
tn.Nodes.Add("Icmp");
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Tag = xx;
tn.Nodes[1].ImageIndex = 1;
tn.Nodes[1].Nodes.Add("Type : " + consts.GetTypeForIcmp(IPacket.Type) + " {" + IPacket.Type.ToString() + "}");
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = datagram.IHL * 8 + 7; tn.Nodes[1].Nodes[0].Tag = xx;
tn.Nodes[1].Nodes[0].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Code : " + consts.GetCodeForIcmp(IPacket.Type, IPacket.Code) + " {" + IPacket.Code.ToString() + "}");
xx = new int[4]; xx[0] = datagram.IHL * 8 + 8; xx[1] = datagram.IHL * 8 + 15; tn.Nodes[1].Nodes[1].Tag = xx;
tn.Nodes[1].Nodes[1].ImageIndex = 4;
tn.Nodes[1].Nodes.Add("Checksum : " + IPacket.Checksum.ToString());
xx = new int[4]; xx[0] = datagram.IHL * 8 + 16; xx[1] = datagram.IHL * 8 + 31; tn.Nodes[1].Nodes[2].Tag = xx;
tn.Nodes[1].Nodes[2].ImageIndex = 4;
if (IPacket.hasNextField)
{
int off = datagram.IHL * 8 + 32;
int i = 0;
for (i = 0; i < IPacket.GetFieldCount(); i++)
{
if (IPacket.GetFieldName(i) == "IP Address")
{
IPAddress ipa = new IPAddress(IPacket.GetField(i));
tn.Nodes[1].Nodes.Add(IPacket.GetFieldName(i) + " : " + ipa.ToString());
}
else
{
tn.Nodes[1].Nodes.Add(IPacket.GetFieldName(i) + " : " + IPacket.GetField(i).ToString());
}
xx = new int[4]; xx[0] = off; xx[1] = off + IPacket.GetFieldLengt(i) - 1; tn.Nodes[1].Nodes[3 + i].Tag = xx;
tn.Nodes[1].Nodes[3 + i].ImageIndex = 4;
off = off + IPacket.GetFieldLengt(i);
}
if (!IPacket.dataIsIp)
{
tn.Nodes[1].Nodes.Add("Data : " + ".....");
xx = new int[4]; xx[0] = off; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[3 + i].Tag = xx;
tn.Nodes[1].Nodes[3 + i].ImageIndex = 4;
}
else
{
tn.Nodes[1].Nodes.Add("Data : " + "(Has a Ip Packet)");
xx = new int[4]; xx[0] = off; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[3 + i].Tag = xx;
tn.Nodes[1].Nodes[3 + i].ImageIndex = 1;
tn.Nodes[1].Nodes[3 + i].Nodes.Add("Identification : " + HeaderParser.ToInt(IPacket.Data, 32, 16).ToString());
xx = new int[4]; xx[0] = off + 32; xx[1] = off + 47; tn.Nodes[1].Nodes[3 + i].Nodes[0].Tag = xx;
tn.Nodes[1].Nodes[3 + i].Nodes[0].ImageIndex = 4;
tn.Nodes[1].Nodes[3 + i].Nodes.Add("Protocol : " + HeaderParser.ToInt(IPacket.Data, 72, 8).ToString());
xx = new int[4]; xx[0] = off + 72; xx[1] = off + 79; tn.Nodes[1].Nodes[3 + i].Nodes[1].Tag = xx;
tn.Nodes[1].Nodes[3 + i].Nodes[1].ImageIndex = 4;
tn.Nodes[1].Nodes[3 + i].Nodes.Add("Source IP : " + IPAddress.Parse(IPv4Datagram.GetIPString(HeaderParser.ToUInt(IPacket.Data, 96, 32))));
xx = new int[4]; xx[0] = off + 96; xx[1] = off + 127; tn.Nodes[1].Nodes[3 + i].Nodes[2].Tag = xx;
tn.Nodes[1].Nodes[3 + i].Nodes[2].ImageIndex = 4;
tn.Nodes[1].Nodes[3 + i].Nodes.Add("Destination IP : " + IPAddress.Parse(IPv4Datagram.GetIPString(HeaderParser.ToUInt(IPacket.Data, 128, 32))));
xx = new int[4]; xx[0] = off + 128; xx[1] = off + 159; tn.Nodes[1].Nodes[3 + i].Nodes[3].Tag = xx;
tn.Nodes[1].Nodes[3 + i].Nodes[3].ImageIndex = 4;
tn.Nodes[1].Nodes[3 + i].Nodes.Add("Data : .....");
xx = new int[4]; xx[0] = off + HeaderParser.ToInt(IPacket.Data, 4, 4) * 32; xx[1] = total * 8; tn.Nodes[1].Nodes[3 + i].Nodes[4].Tag = xx;
tn.Nodes[1].Nodes[3 + i].Nodes[4].ImageIndex = 4;
}
}
else
{
tn.Nodes[1].Nodes.Add("Other Fields + Data : " + ".....");
xx = new int[4]; xx[0] = datagram.IHL * 8 + 32; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[3].Tag = xx;
tn.Nodes[1].Nodes[3].ImageIndex = 4;
}
}
else //Other Protocols
{
ProtocolTemplate Others = datagram.HandleOthers();
tn.Nodes.Add(Others.ProtocolName);
xx = new int[4]; xx[0] = datagram.IHL * 8; xx[1] = total * 8 - 1; tn.Nodes[1].Tag = xx;
tn.Nodes[1].ImageIndex = 1;
int [] yy = new int[2];
int off = datagram.IHL * 8;
int i = 0;
for (i = 0; i < Others.GetFieldCount(); i++)
{
tn.Nodes[1].Nodes.Add(Others.GetFieldName(i) + " : " + Others.GetField(i).ToString());
yy = Others.GetFieldLength(i);
xx = new int[4]; xx[0] = off + yy[0]; xx[1] = off + yy[1] + yy[0] - 1; tn.Nodes[1].Nodes[i].Tag = xx;
tn.Nodes[1].Nodes[i].ImageIndex = 4;
}
tn.Nodes[1].Nodes.Add("Data : ..... ");
xx = new int[4]; xx[0] = off + yy[1]; xx[1] = total * 8 - 1; tn.Nodes[1].Nodes[i].Tag = xx;
tn.Nodes[1].Nodes[i].ImageIndex = 4;
}
trv.Nodes.Add(tn);
trv.ExpandAll();
trv.Update();
}
public static int getProcessId(IPv4Datagram datagram, string thisComputerIp)
{
myAPI = new IPHelper();
string sourceIp = "";
string sourcePort = "";
string destIp = "";
string destPort = "";
switch (datagram.Protocol)
{
case 6:
TcpPacket tcpPacket = datagram.HandleTcpPacket();
if (tcpPacket.SourceIP == thisComputerIp)
{
sourceIp = tcpPacket.SourceIP;
sourcePort = tcpPacket.SourcePort.ToString();
destIp = tcpPacket.DestinationIP;
destPort = tcpPacket.DestinationPort.ToString();
}
else
{
sourceIp = tcpPacket.DestinationIP;
sourcePort = tcpPacket.DestinationPort.ToString();
destIp = tcpPacket.SourceIP;
destPort = tcpPacket.SourcePort.ToString();
}
myAPI.GetExTcpConnexions();
for (int i = 0; i < myAPI.TcpExConnexions.dwNumEntries; i++)
{
// if (/*sourceIp==myAPI.TcpExConnexions.table[i].Local.Address.ToString()&&*/
// sourcePort==myAPI.TcpExConnexions.table[i].Local.Port.ToString()//&&
// /*destIp==myAPI.TcpExConnexions.table[i].Remote.Address.ToString()&&
// destPort==myAPI.TcpExConnexions.table[i].Remote.Port.ToString()*/)
// {
// int ret = myAPI.TcpExConnexions.table[i].dwProcessId';
// myAPI=null;
// GC.Collect();
// return ret;
// }
if (myAPI.TcpExConnexions.table[i].Remote.Port == 0)
{
if (sourcePort == myAPI.TcpExConnexions.table[i].Local.Port.ToString())
{
int ret = myAPI.TcpExConnexions.table[i].dwProcessId;
myAPI = null;
GC.Collect();
return(ret);
}
}
else
{
if (sourcePort == myAPI.TcpExConnexions.table[i].Local.Port.ToString() &&
destPort == myAPI.TcpExConnexions.table[i].Remote.Port.ToString())
{
int ret = myAPI.TcpExConnexions.table[i].dwProcessId;
myAPI = null;
GC.Collect();
return(ret);
}
}
}
break;
case 17:
UdpDatagram udpPacket = datagram.HandleUdpDatagram();
if (udpPacket.SourceIP == thisComputerIp)
{
sourceIp = udpPacket.SourceIP;
sourcePort = udpPacket.SourcePort.ToString();
destIp = udpPacket.DestinationIP;
destPort = udpPacket.DestinationPort.ToString();
}
else
{
sourceIp = udpPacket.DestinationIP;
sourcePort = udpPacket.DestinationPort.ToString();
destIp = udpPacket.SourceIP;
destPort = udpPacket.SourcePort.ToString();
}
myAPI.GetExUdpConnexions();
for (int i = 0; i < myAPI.UdpExConnexion.dwNumEntries; i++)
{
if ( /*sourceIp==myAPI.UdpExConnexion.table[i].Local.Address.ToString()&&*/
sourcePort == myAPI.UdpExConnexion.table[i].Local.Port.ToString())
{
int ret = myAPI.UdpExConnexion.table[i].dwProcessId;
myAPI = null;
GC.Collect();
return(ret);
}
}
break;
}
return(-1);
}