public void BadFilterErrorTest()
{
using (PacketCommunicator communicator = LivePacketDeviceTests.OpenLiveDevice())
{
communicator.SetFilter("illegal filter string");
}
}
public void TransmitNullTest()
{
using (PacketCommunicator communicator = LivePacketDeviceTests.OpenLiveDevice())
{
communicator.Transmit(null, false);
}
Assert.Fail();
}
private static void TestTransmitQueueToLive(int numPacketsToSend, int packetSize, double secondsBetweenTimestamps, bool isSynced)
{
const string SourceMac = "11:22:33:44:55:66";
const string DestinationMac = "77:88:99:AA:BB:CC";
List <Packet> packetsToSend;
using (PacketSendBuffer queue = BuildQueue(out packetsToSend, numPacketsToSend, packetSize, SourceMac, DestinationMac, secondsBetweenTimestamps))
{
using (PacketCommunicator communicator = LivePacketDeviceTests.OpenLiveDevice())
{
communicator.SetFilter("ether src " + SourceMac + " and ether dst " + DestinationMac);
communicator.Transmit(queue, isSynced);
DateTime lastTimestamp = DateTime.MinValue;
int numPacketsHandled = 0;
int numPacketsGot;
PacketCommunicatorReceiveResult result =
communicator.ReceiveSomePackets(out numPacketsGot, numPacketsToSend,
delegate(Packet packet)
{
Assert.AreEqual(packetsToSend[numPacketsHandled], packet);
if (numPacketsHandled > 0)
{
TimeSpan expectedDiff;
if (isSynced)
{
expectedDiff =
packetsToSend[numPacketsHandled].Timestamp -
packetsToSend[numPacketsHandled - 1].Timestamp;
}
else
{
expectedDiff = TimeSpan.Zero;
}
TimeSpan actualDiff = packet.Timestamp - lastTimestamp;
MoreAssert.IsInRange(
expectedDiff.Subtract(TimeSpan.FromSeconds(0.06)),
expectedDiff.Add(TimeSpan.FromSeconds(0.1)),
actualDiff, "actualDiff");
}
lastTimestamp = packet.Timestamp;
++numPacketsHandled;
});
Assert.AreEqual(PacketCommunicatorReceiveResult.Ok, result);
Assert.AreEqual(numPacketsToSend, numPacketsGot, "numPacketsGot");
Assert.AreEqual(numPacketsToSend, numPacketsHandled, "numPacketsHandled");
}
}
}
public static OfflinePacketDevice GetOfflineDevice(int numPackets, Packet packet, TimeSpan intervalBetweenPackets, string dumpFilename, string readFilename = null)
{
if (readFilename == null)
{
readFilename = dumpFilename;
}
PacketCommunicator communicator;
using (communicator = LivePacketDeviceTests.OpenLiveDevice())
{
using (PacketDumpFile dumpFile = communicator.OpenDump(dumpFilename))
{
int lastPosition = 0;
for (int i = 0; i != numPackets; ++i)
{
if (intervalBetweenPackets != TimeSpan.Zero && i != 0)
{
DateTime timestamp = packet.Timestamp;
timestamp = timestamp.Add(intervalBetweenPackets);
packet = new Packet(packet.Buffer, timestamp, packet.DataLink);
}
dumpFile.Dump(packet);
MoreAssert.IsBigger(lastPosition, dumpFile.Position);
lastPosition = dumpFile.Position;
dumpFile.Flush();
}
}
}
if (readFilename != dumpFilename)
{
if (File.Exists(readFilename))
{
File.Delete(readFilename);
}
File.Move(dumpFilename, readFilename);
}
OfflinePacketDevice device = new OfflinePacketDevice(readFilename);
Assert.AreEqual(0, device.Addresses.Count);
Assert.AreEqual(string.Empty, device.Description);
Assert.AreEqual(DeviceAttributes.None, device.Attributes);
Assert.AreEqual(readFilename, device.Name);
return(device);
}
public void NoCommunicatorConstructorWithNetmaskTest()
{
const string SourceMac = "11:22:33:44:55:66";
const string DestinationMac = "77:88:99:AA:BB:CC";
Random random = new Random();
Packet expectedPacket = random.NextEthernetPacket(1000, SourceMac, DestinationMac);
Packet unexpectedPacket = random.NextEthernetPacket(1000, DestinationMac, SourceMac);
using (PacketCommunicator communicator = LivePacketDeviceTests.OpenLiveDevice())
{
using (BerkeleyPacketFilter filter = new BerkeleyPacketFilter("ether src " + SourceMac + " and ether dst " + DestinationMac, 1000, DataLinkKind.Ethernet, communicator.IpV4Netmask))
{
TestFilter(communicator, filter, expectedPacket, unexpectedPacket);
}
}
}