public void DeviceNotReadyExceptionWhenStartingACaptureWithoutAddingDelegateToOnPcapStatistics()
{
using var device = new StatisticsDevice(TestHelper.GetPcapDevice().Interface);
device.Open();
Assert.Throws <DeviceNotReadyException>(() => device.StartCapture());
}
public void Test()
{
using var sender = TestHelper.GetPcapDevice();
using var device = new StatisticsDevice(sender.Interface);
var config = new DeviceConfiguration
{
// for stats device on Windows, this is the interval between Statistics
ReadTimeout = 10,
};
sender.Open();
device.Open(config);
Assert.AreEqual(sender.LinkType, device.LinkType);
Assert.IsNotEmpty(device.Name);
Assert.AreEqual(device.Name, sender.Name);
Assert.AreEqual(device.Description, sender.Description);
Assert.AreEqual(device.MacAddress, sender.MacAddress);
Assert.IsEmpty(device.LastError);
var stats = new List <StatisticsEventArgs>();
device.OnPcapStatistics += (s, e) =>
{
stats.Add(e);
};
device.Filter = Filter;
Assert.AreEqual(Filter, device.Filter);
device.StartCapture();
var packet = EthernetPacket.RandomPacket();
packet.Type = (EthernetType)0x1234;
packet.PayloadData = new byte[60];
var packetLength = packet.TotalPacketLength;
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
// Windows count Ethernet Preamble, SFD and CRC
packetLength += 12;
}
var count = 7;
for (int i = 0; i < count; i++)
{
sender.SendPacket(packet);
// We do this to make sure we receive multiple stats
Thread.Sleep(100);
}
device.Close();
Assert.That(stats, Is.Not.Empty);
var receivedPackets = stats.Select(s => s.ReceivedPackets);
var receivedBytes = stats.Select(s => s.ReceivedBytes);
Assert.That(receivedPackets, Is.Ordered);
Assert.That(receivedBytes, Is.Ordered);
foreach (var s in stats)
{
Assert.AreEqual(device, s.Device);
Assert.GreaterOrEqual(DateTime.UtcNow, s.Timeval.Date);
}
Assert.That(receivedPackets.Last(), Is.EqualTo(count));
Assert.That(receivedBytes.Last(), Is.EqualTo(count * packetLength));
}
/// <summary>
/// Stat collection capture example
/// </summary>
public static void Main()
{
// Print SharpPcap version
var ver = Pcap.SharpPcapVersion;
Console.WriteLine("SharpPcap {0}, Example11.Statistics.cs", ver);
var os = System.Environment.OSVersion;
if (os.Platform != PlatformID.Win32NT)
{
Console.WriteLine("Your platform is unsupported for this example as it relies on npcap specific functionality only present in Windows.");
return;
}
// Retrieve the device list
var devices = LibPcapLiveDeviceList.Instance;
// If no devices were found print an error
if (devices.Count < 1)
{
Console.WriteLine("No devices were found on this machine");
return;
}
Console.WriteLine();
Console.WriteLine("The following devices are available on this machine:");
Console.WriteLine("----------------------------------------------------");
Console.WriteLine();
int i = 0;
// Print out the available devices
foreach (var dev in devices)
{
Console.WriteLine("{0}) {1} {2}", i, dev.Name, dev.Description);
i++;
}
Console.WriteLine();
Console.Write("-- Please choose a device to gather statistics on: ");
i = int.Parse(Console.ReadLine());
using var device = new StatisticsDevice(devices[i].Interface);
// Register our handler function to the 'pcap statistics' event
device.OnPcapStatistics += device_OnPcapStatistics;
// Open the device for capturing
device.Open();
// Handle TCP packets only
device.Filter = "tcp";
Console.WriteLine();
Console.WriteLine("-- Gathering statistics on \"{0}\", hit 'Enter' to stop...",
device.Description);
// Start the capturing process
device.StartCapture();
// Wait for 'Enter' from the user.
Console.ReadLine();
// Stop the capturing process
device.StopCapture();
// Print out the device statistics
Console.WriteLine(device.Statistics.ToString());
Console.WriteLine("Capture stopped, device closed.");
Console.Write("Hit 'Enter' to exit...");
Console.ReadLine();
}
