private void init(int deviceId)
{
// Retrieve the device list
CaptureDeviceList devices = CaptureDeviceList.Instance;
// If no devices were found print an error
if (devices.Count < 1)
{
Console.WriteLine("No devices were found on this machine in NetStatsService.init()");
return;
}
int i = deviceId;
_device = devices[i] as NpcapDevice;
// Register our handler function to the 'pcap statistics' event
_device.OnPcapStatistics +=
new SharpPcap.Npcap.StatisticsModeEventHandler(device_OnPcapStatistics);
// Open the device for capturing
_device.Open();
// Handle TCP packets only
_device.Filter = "tcp";
// Set device to statistics mode
_device.Mode = SharpPcap.Npcap.CaptureMode.Statistics;
}
public void Add(NpcapDevice device)
{
if (device.Interface.Addresses.Count > 0 && !Equals(device.Interface.MacAddress, PhysicalAddress.None))
{
this._physicalAddresses.Add(device.Interface.MacAddress);
}
this._captureDevices.Add(device);
}
//checks device/interface to see if there is traffic on it, same logic as Sniffer
private static void IsDeviceActive(NpcapDevice device)
{
device.OnPacketArrival += new SharpPcap.PacketArrivalEventHandler(DeviceConnectivityHandler);
device.Open(DeviceMode.Promiscuous, 1000);
device.Filter = "ip and tcp";
device.StartCapture();
Thread.Sleep(1000);
device.StopCapture();
device.Close();
}
/// <summary>
/// 指定デバイスからIPv4アドレスを取得する
/// </summary>
/// <param name="captureDevice"></param>
/// <returns></returns>
private IPAddress GetIPv4(NpcapDevice device)
{
foreach (var addr in device.Addresses)
{
if (addr.Netmask.ToString() != "")
{
return(IPAddress.Parse(addr.Addr.ToString()));
}
}
throw new InvalidOperationException(string.Format("デバイス {0} に有効な IPv4 アドレスが見つかりませんでした", device.Description));
}
public CaptureDeviceInfo(NpcapDevice device)
{
this.device = device;
foreach (var addr in device.Addresses)
{
if (addr.Addr != null && addr.Addr.ipAddress != null && addr.Netmask != null)
{
IPAddress ipOut;
string ipAddressStr = addr.Addr.ipAddress.ToString();
if (IPAddress.TryParse(ipAddressStr, out ipOut))
{
if (ipOut.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
ipv4Address = ipOut.ToString();
}
}
}
}
}
/*
* get list of all device interfaces on machine, iterate through list and check for wifi/ethernet connectivity
* collect packets for 00:01:30, print to console.
*/
private static void Sniffer()
{
NpcapDeviceList devices = NpcapDeviceList.Instance;
NpcapDevice activeDevice = null;
foreach (NpcapDevice currentDevice in devices)
{
IsDeviceActive(currentDevice);
if ((isDeviceActive && ((currentDevice.ToString().Contains("FriendlyName: Wi-Fi")) || (currentDevice.ToString().Contains("FriendlyName: Ethernet")))))
{
activeDevice = currentDevice;
break;
}
}
foreach (PcapAddress ipaddress in activeDevice.Addresses)
{
if (ipaddress.Addr != null && ipaddress.Addr.ipAddress != null)
{
if (ipaddress.Addr.ipAddress.ToString().Contains("192.168"))
{
currentDeviceLocalIp = ipaddress.Addr.ipAddress;
break;
}
}
}
activeDevice.OnPacketArrival += new SharpPcap.PacketArrivalEventHandler(PacketHandler);
Console.WriteLine(string.Format("{0}\n", activeDevice));
Console.WriteLine("Initiating Packet Capture...");
activeDevice.Open(DeviceMode.Promiscuous, 1000);
activeDevice.Filter = "ip and tcp";
activeDevice.StartCapture();
Thread.Sleep(90000);
activeDevice.StopCapture();
activeDevice.Close();
Console.WriteLine("...Packet Capture complete.");
Console.WriteLine("==============================================\n\n\n");
}
private static bool IsInteresting(NpcapDevice device)
{
return(true);
}
