internal static void ConfirmIdleState()
{
var devices = DeviceFixture.GetDevices().OfType <PcapDevice>();
foreach (var d in devices)
{
var isOpened = d.Opened;
var isStarted = d.Started;
if (isStarted)
{
d.StopCapture();
}
if (isOpened)
{
d.Close();
}
var status = TestContext.CurrentContext.Result.Outcome.Status;
// If test already failed, no point asserting here
if (status != TestStatus.Failed)
{
Assert.IsFalse(isOpened, "Expected device to not to be Opened");
Assert.IsFalse(isStarted, "Expected device to not be Started");
}
}
}
public IEnumerable GetData(IParameterInfo parameter)
{
return(DeviceFixture.GetDevices()
.OfType <PcapDevice>()
.Select(d => new DeviceFixture(d))
.ToArray());
}
public void DeviceOpen([CaptureDevices] DeviceFixture fixture)
{
using var device = (PcapDevice)fixture.GetDevice();
device.Open();
DeviceTest(device, null);
}
public void DeviceOpenWithTimestampType([CaptureDevices] DeviceFixture fixture)
{
using var device = (PcapDevice)fixture.GetDevice();
if (!(device is LibPcapLiveDevice))
{
return;
}
var liveDevice = device as LibPcapLiveDevice;
var timestampTypes = liveDevice.Interface.TimestampsSupported;
Assert.IsNotEmpty(timestampTypes);
// open the device with each of its supported timestamp types
foreach (var pcapClock in timestampTypes)
{
var configuration = new DeviceConfiguration();
configuration.TimestampType = pcapClock.TimestampType;
liveDevice.Open(configuration);
Assert.IsNotNull(liveDevice.Interface.TimestampsSupported);
liveDevice.Close();
}
}
public IEnumerable GetData(IParameterInfo parameter)
{
return(DeviceFixture.GetDevices()
.Cast <LibPcapLiveDevice>()
.Select(d => new DeviceFixture(d))
.ToArray());
}
public void SetFilterExceptionIfDeviceIsClosed([CaptureDevices] DeviceFixture fixture)
{
var device = fixture.GetDevice();
Assert.Throws <DeviceNotReadyException>(
() => device.Filter = "tcp port 80",
"Did not catch the expected DeviceNotReadyException"
);
}
public void DeviceNotReadyExceptionWhenStartingACaptureWithoutAddingDelegateToOnPacketArrival(
[CaptureDevices] DeviceFixture fixture
)
{
var device = fixture.GetDevice();
device.Open();
Assert.Throws <DeviceNotReadyException>(
() => device.StartCapture()
);
device.Close();
}
public void DeviceOpenWithTimestampPrecision(
[CaptureDevices] DeviceFixture fixture,
[Values] TimestampResolution resolution
)
{
using var device = (PcapDevice)fixture.GetDevice();
try
{
var configuration = new DeviceConfiguration();
configuration.TimestampResolution = resolution;
device.Open(configuration);
DeviceTest(device, resolution);
}
catch (PcapException ex)
{
// its ok if the device does not support setting the precision, all other PcapError
// types are considered test failures
Assert.AreEqual(PcapError.TimestampPrecisionNotSupported, ex.Error);
Assert.Ignore("Device does not support this timestamp precision");
}
}
public void SimpleFilter([CaptureDevices] DeviceFixture fixture)
{
// BPF is known to support those link layers,
// support for other link layers such as NFLOG and USB is unknown
var supportedLinks = new[]
{
LinkLayers.Ethernet,
LinkLayers.Raw,
LinkLayers.Null
};
var device = fixture.GetDevice();
device.Open();
if (!supportedLinks.Contains(device.LinkType))
{
device.Close();
Assert.Inconclusive("NFLOG link-layer not supported");
}
device.Filter = "tcp port 80";
device.Close(); // close the device
}
public void GetNextPacketExceptionIfCaptureLoopRunning(
[CaptureDevices] DeviceFixture fixture
)
{
using var device = fixture.GetDevice();
Assert.IsFalse(device.Started, "Expected device not to be Started");
device.Open();
device.OnPacketArrival += HandleOnPacketArrival;
// start background capture
device.StartCapture();
Assert.IsTrue(device.Started, "Expected device to be Started");
// attempt to get the next packet via GetNextPacket()
// to ensure that we get the exception we expect
Assert.Throws <InvalidOperationDuringBackgroundCaptureException>(
() => device.GetNextPacket(out var _)
);
}
public void DeviceProperties([PcapDevices] DeviceFixture fixture)
{
var device = (PcapDevice)fixture.GetDevice();
device.Open();
var pcapIf = device.Interface;
Assert.IsTrue(device.Opened);
Assert.IsNotEmpty(device.Name);
Assert.AreEqual(device.Name, pcapIf.Name);
Assert.AreEqual(device.Description, pcapIf.Description);
Assert.IsNotNull(pcapIf.GatewayAddresses);
Assert.IsNotNull(pcapIf.Addresses);
if (pcapIf.MacAddress != null)
{
Assert.That(pcapIf.MacAddress.GetAddressBytes(), Has.Length.EqualTo(6));
}
device.Close();
}
