/// <summary>
/// Prints the time and length of each received packet
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
DateTime time = e.Packet.PcapHeader.Date;
uint len = e.Packet.PcapHeader.PacketLength;
Console.WriteLine("{0}:{1}:{2},{3} Len={4}",
time.Hour, time.Minute, time.Second, time.Millisecond, len);
}
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if (e.Packet is EthernetPacket)
{
EthernetPacket eth = ((EthernetPacket)e.Packet);
Console.WriteLine("Original Eth packet: " + eth.ToColoredString(false));
//Manipulate ethernet parameters
eth.SourceHwAddress = PhysicalAddress.Parse("00-11-22-33-44-55");
eth.DestinationHwAddress = PhysicalAddress.Parse("00-99-88-77-66-55");
if (e.Packet is IPPacket)
{
IPPacket ip = ((IPPacket)e.Packet);
Console.WriteLine("Original IP packet: " + ip.ToColoredString(false));
//manipulate IP parameters
ip.SourceAddress = System.Net.IPAddress.Parse("1.2.3.4");
ip.DestinationAddress = System.Net.IPAddress.Parse("44.33.22.11");
ip.TimeToLive = 11;
//Recalculate the IP checksum
ip.ComputeIPChecksum();
if (ip is TCPPacket)
{
TCPPacket tcp = ((TCPPacket)ip);
Console.WriteLine("Original TCP packet: " + tcp.ToColoredString(false));
//manipulate TCP parameters
tcp.SourcePort = 9999;
tcp.DestinationPort = 8888;
tcp.Syn = !tcp.Syn;
tcp.Fin = !tcp.Fin;
tcp.Ack = !tcp.Ack;
tcp.WindowSize = 500;
tcp.AcknowledgmentNumber = 800;
tcp.SequenceNumber = 800;
//Recalculate the TCP checksum
tcp.ComputeTCPChecksum();
}
if (ip is UDPPacket)
{
UDPPacket udp = ((UDPPacket)ip);
Console.WriteLine("Original UDP packet: " + udp.ToColoredString(false));
//manipulate UDP parameters
udp.SourcePort = 9999;
udp.DestinationPort = 8888;
//Recalculate the UDP checksum
udp.ComputeUDPChecksum();
}
}
Console.WriteLine("Manipulated Eth packet: " + eth.ToColoredString(false));
}
}
/// <summary>
/// Prints the time and length of each received packet
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
DateTime time = e.Packet.PcapHeader.Date;
uint len = e.Packet.PcapHeader.PacketLength;
Console.WriteLine("{0}:{1}:{2},{3} Len={4}",
time.Hour, time.Minute, time.Second, time.Millisecond, len);
}
/// <summary>
/// Prints the source and dest MAC addresses of each received Ethernet frame
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if (e.Packet is EthernetPacket)
{
EthernetPacket etherFrame = (EthernetPacket)e.Packet;
Console.WriteLine("At: {0}:{1}: MAC:{2} -> MAC:{3}",
etherFrame.PcapHeader.Date.ToString(),
etherFrame.PcapHeader.Date.Millisecond,
etherFrame.SourceHwAddress,
etherFrame.DestinationHwAddress);
}
}
/// <summary>
/// Dumps each received packet to a pcap file
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
PcapDevice device = (PcapDevice)sender;
//if device has a dump file opened
if (device.DumpOpened)
{
//dump the packet to the file
device.Dump(e.Packet);
Console.WriteLine("Packet dumped to file.");
}
}
/// <summary>
/// Prints the source and dest MAC addresses of each received Ethernet frame
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if( e.Packet is EthernetPacket )
{
EthernetPacket etherFrame = (EthernetPacket)e.Packet;
Console.WriteLine("At: {0}:{1}: MAC:{2} -> MAC:{3}",
etherFrame.PcapHeader.Date.ToString(),
etherFrame.PcapHeader.Date.Millisecond,
etherFrame.SourceHwAddress,
etherFrame.DestinationHwAddress);
}
}
/// <summary>
/// Prints the time, length, src ip, src port, dst ip and dst port
/// for each TCP/IP packet received on the network
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if (e.Packet is TCPPacket)
{
DateTime time = e.Packet.PcapHeader.Date;
uint len = e.Packet.PcapHeader.PacketLength;
TCPPacket tcp = (TCPPacket)e.Packet;
System.Net.IPAddress srcIp = tcp.SourceAddress;
System.Net.IPAddress dstIp = tcp.DestinationAddress;
int srcPort = tcp.SourcePort;
int dstPort = tcp.DestinationPort;
Console.WriteLine("{0}:{1}:{2},{3} Len={4} {5}:{6} -> {7}:{8}",
time.Hour, time.Minute, time.Second, time.Millisecond, len,
srcIp, srcPort, dstIp, dstPort);
}
}
/// <summary>
/// Dumps each received packet to a pcap file
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
PcapDevice device = (PcapDevice)sender;
//if device has a dump file opened
if( device.DumpOpened )
{
//dump the packet to the file
device.Dump( e.Packet );
Console.WriteLine("Packet dumped to file.");
}
}
/// <summary>
/// Prints the time, length, src ip, src port, dst ip and dst port
/// for each TCP/IP packet received on the network
/// </summary>
private static void device_PcapOnPacketArrival(object sender, PcapCaptureEventArgs e)
{
if(e.Packet is TCPPacket)
{
DateTime time = e.Packet.PcapHeader.Date;
uint len = e.Packet.PcapHeader.PacketLength;
TCPPacket tcp = (TCPPacket)e.Packet;
System.Net.IPAddress srcIp = tcp.SourceAddress;
System.Net.IPAddress dstIp = tcp.DestinationAddress;
int srcPort = tcp.SourcePort;
int dstPort = tcp.DestinationPort;
Console.WriteLine("{0}:{1}:{2},{3} Len={4} {5}:{6} -> {7}:{8}",
time.Hour, time.Minute, time.Second, time.Millisecond, len,
srcIp, srcPort, dstIp, dstPort);
}
}
private void device_OnPacketArrival(object sender, PcapCaptureEventArgs e)
{
DisplayPacketData(e.Packet);
}
// This handles every incoming packet
private void PacketHandler(object sender, PcapCaptureEventArgs e)
{
}
