/// <summary>
/// Finds MAC address of the gateway, when its IP address is in ipOfgateway.
/// The MAC address is stored in macOfGateway.
/// </summary>
/// <returns>
/// <c>true</c> if MAC address is found, otherwise <c>false</c>.
/// </returns>
protected bool findMACofGateway()
{
ARP arp;
if (ipOfGateway == null)
{
return(false);
}
//get list of all available interfaces
SharpPcap.LibPcap.LibPcapLiveDeviceList lldl = SharpPcap.LibPcap.LibPcapLiveDeviceList.Instance;
//find MAC address of gateway
foreach (SharpPcap.LibPcap.LibPcapLiveDevice lld in lldl)
{
arp = new ARP(lld);
try
{
macOfGateway = arp.Resolve(ipOfGateway);
Console.WriteLine("MAC of gateway: " + macOfGateway.ToString());
liveInterface = lld;
}
catch (NullReferenceException)
{
continue;
}
return(true);
}
return(false);
}
public xbs_sniffer(ICaptureDevice dev, bool use_special_mac_filter, List <PhysicalAddress> filter_special_macs, bool only_forward_special_macs, xbs_node_list node_list, xbs_nat NAT, GatewayIPAddressInformationCollection gateways, bool exclude_gateway_ips)
{
this.NAT = NAT;
this.pdev_filter_use_special_macs = use_special_mac_filter;
if (filter_special_macs != null)
{
this.pdev_filter_special_macs = filter_special_macs;
}
this.pdev_filter_only_forward_special_macs = only_forward_special_macs;
this.pdev_filter_exclude_gatway_ips = exclude_gateway_ips;
create_gateway_filter(gateways);
injected_macs_hash.Capacity = 40;
sniffed_macs_hash.Capacity = 10;
sniffed_macs.Capacity = 10;
this.node_list = node_list;
if (!(dev is SharpPcap.LibPcap.LibPcapLiveDevice))
{
throw new ArgumentException("pcap caputure device is not a LibPcapLiveDevice");
}
this.pdev = (SharpPcap.LibPcap.LibPcapLiveDevice)dev;
pdev.OnPacketArrival +=
new PacketArrivalEventHandler(OnPacketArrival);
pdev.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds);
setPdevFilter();
if (System.Environment.OSVersion.Platform == PlatformID.Win32NT && pdev is SharpPcap.WinPcap.WinPcapDevice)
{
((SharpPcap.WinPcap.WinPcapDevice)pdev).MinToCopy = 10;
}
xbs_messages.addInfoMessage(" - sniffer created on device " + pdev.Description, xbs_message_sender.SNIFFER);
dispatcher_thread = new Thread(new ThreadStart(dispatcher));
dispatcher_thread.IsBackground = true;
dispatcher_thread.Priority = ThreadPriority.AboveNormal;
dispatcher_thread.Start();
}
public xbs_sniffer(ICaptureDevice dev, bool use_special_mac_filter, List<PhysicalAddress> filter_special_macs, bool only_forward_special_macs, xbs_node_list node_list, xbs_nat NAT, GatewayIPAddressInformationCollection gateways, bool exclude_gateway_ips)
{
this.NAT = NAT;
this.pdev_filter_use_special_macs = use_special_mac_filter;
if (filter_special_macs!=null)
this.pdev_filter_special_macs = filter_special_macs;
this.pdev_filter_only_forward_special_macs = only_forward_special_macs;
this.pdev_filter_exclude_gatway_ips = exclude_gateway_ips;
create_gateway_filter(gateways);
injected_macs_hash.Capacity = 40;
sniffed_macs_hash.Capacity = 10;
sniffed_macs.Capacity = 10;
this.node_list = node_list;
if (!(dev is SharpPcap.LibPcap.LibPcapLiveDevice))
throw new ArgumentException("pcap caputure device is not a LibPcapLiveDevice");
this.pdev = (SharpPcap.LibPcap.LibPcapLiveDevice)dev;
pdev.OnPacketArrival +=
new PacketArrivalEventHandler(OnPacketArrival);
pdev.Open(DeviceMode.Promiscuous, readTimeoutMilliseconds);
setPdevFilter();
if (System.Environment.OSVersion.Platform == PlatformID.Win32NT && pdev is SharpPcap.WinPcap.WinPcapDevice)
((SharpPcap.WinPcap.WinPcapDevice)pdev).MinToCopy = 10;
xbs_messages.addInfoMessage(" - sniffer created on device " + pdev.Description, xbs_message_sender.SNIFFER);
dispatcher_thread = new Thread(new ThreadStart(dispatcher));
dispatcher_thread.IsBackground = true;
dispatcher_thread.Priority = ThreadPriority.AboveNormal;
dispatcher_thread.Start();
}
