public void RandomEthernetTest()
{
Random random = new Random();
for (int i = 0; i != 1000; ++i)
{
EthernetLayer ethernetLayer = random.NextEthernetLayer();
int ethernetPayloadLength = random.Next(1500);
PayloadLayer payloadLayer = new PayloadLayer
{
Data = random.NextDatagram(ethernetPayloadLength),
};
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, payloadLayer);
// Ethernet
Assert.IsTrue(new[] {EthernetType.IpV4, EthernetType.Arp, EthernetType.VLanTaggedFrame}.Contains(packet.Ethernet.EtherType) ||
packet.IsValid, "IsValid - EtherType = " + packet.Ethernet.EtherType);
Assert.AreEqual(packet.Length - EthernetDatagram.HeaderLengthValue, packet.Ethernet.PayloadLength, "PayloadLength");
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
Assert.AreEqual(ethernetLayer.GetHashCode(), packet.Ethernet.ExtractLayer().GetHashCode(), "Ethernet Layer Hash Code");
Assert.AreNotEqual(random.NextEthernetLayer().GetHashCode(), packet.Ethernet.ExtractLayer().GetHashCode(), "Ethernet Layer Hash Code");
Assert.AreEqual(ethernetLayer.ToString(), packet.Ethernet.ExtractLayer().ToString(), "Ethernet Layer ToString()");
Assert.AreNotEqual(random.NextEthernetLayer().ToString(), packet.Ethernet.ExtractLayer().ToString(), "Ethernet Layer ToString()");
Assert.AreNotEqual(2, packet.Ethernet.Source, "Ethernet Source");
Assert.AreEqual(payloadLayer.Data, packet.Ethernet.Payload);
}
}
public void RandomVLanTaggedFrameTest()
{
Random random = new Random();
for (int i = 0; i != 1000; ++i)
{
EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
VLanTaggedFrameLayer vLanTaggedFrameLayer = random.NextVLanTaggedFrameLayer();
int payloadLength = random.Next(1500);
PayloadLayer payloadLayer = new PayloadLayer
{
Data = random.NextDatagram(payloadLength),
};
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, vLanTaggedFrameLayer, payloadLayer);
ethernetLayer.EtherType = EthernetType.VLanTaggedFrame;
// Test output.
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer());
Assert.AreEqual(vLanTaggedFrameLayer, packet.Ethernet.VLanTaggedFrame.ExtractLayer());
Assert.AreEqual(vLanTaggedFrameLayer.GetHashCode(), packet.Ethernet.VLanTaggedFrame.ExtractLayer().GetHashCode());
Assert.AreNotEqual(random.NextVLanTaggedFrameLayer().GetHashCode(), packet.Ethernet.VLanTaggedFrame.ExtractLayer().GetHashCode());
Assert.AreEqual(vLanTaggedFrameLayer.TagControlInformation, packet.Ethernet.VLanTaggedFrame.TagControlInformation);
Assert.AreEqual(payloadLayer.Data, packet.Ethernet.VLanTaggedFrame.Payload);
}
}
public void DontAutoSetEthernetDestinationTest()
{
Random random = new Random();
EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
ethernetLayer.Destination = MacAddress.Zero;
VLanTaggedFrameLayer vLanTaggedFrameLayer = random.NextVLanTaggedFrameLayer();
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, vLanTaggedFrameLayer);
ethernetLayer.EtherType = EthernetType.VLanTaggedFrame;
// Test equality.
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer());
Assert.AreEqual(vLanTaggedFrameLayer, packet.Ethernet.VLanTaggedFrame.ExtractLayer());
}
public void AutoSetEtherTypeTest()
{
Random random = new Random();
EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
VLanTaggedFrameLayer vLanTaggedFrameLayer = random.NextVLanTaggedFrameLayer(EthernetType.None);
IpV4Layer ipV4Layer = random.NextIpV4Layer();
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, vLanTaggedFrameLayer, ipV4Layer);
ethernetLayer.EtherType = EthernetType.VLanTaggedFrame;
vLanTaggedFrameLayer.EtherType = EthernetType.IpV4;
// Test equality.
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer());
Assert.AreEqual(EthernetType.IpV4, packet.Ethernet.VLanTaggedFrame.EtherType);
Assert.AreEqual(vLanTaggedFrameLayer, packet.Ethernet.VLanTaggedFrame.ExtractLayer());
ipV4Layer.HeaderChecksum = packet.Ethernet.VLanTaggedFrame.IpV4.HeaderChecksum;
Assert.AreEqual(ipV4Layer, packet.Ethernet.VLanTaggedFrame.IpV4.ExtractLayer());
}
public void RandomHttpTest()
{
int seed = new Random().Next();
Console.WriteLine("Seed: " + seed);
Random random = new Random(seed);
for (int i = 0; i != 200; ++i)
{
EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
ipV4Layer.HeaderChecksum = null;
Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(true);
TcpLayer tcpLayer = random.NextTcpLayer();
tcpLayer.Checksum = null;
HttpLayer httpLayer = random.NextHttpLayer();
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, tcpLayer, httpLayer);
Assert.IsTrue(packet.IsValid, "IsValid");
HttpDatagram httpDatagram = packet.Ethernet.Ip.Tcp.Http;
Assert.AreEqual(httpLayer.Version, httpDatagram.Version);
if (httpLayer.Version != null)
Assert.AreEqual(httpLayer.Version.GetHashCode(), httpDatagram.Version.GetHashCode());
if (httpLayer is HttpRequestLayer)
{
Assert.IsTrue(httpDatagram.IsRequest);
Assert.IsTrue(httpLayer.IsRequest);
Assert.IsFalse(httpDatagram.IsResponse);
Assert.IsFalse(httpLayer.IsResponse);
HttpRequestLayer httpRequestLayer = (HttpRequestLayer)httpLayer;
HttpRequestDatagram httpRequestDatagram = (HttpRequestDatagram)httpDatagram;
Assert.AreEqual(httpRequestLayer.Method, httpRequestDatagram.Method);
if (httpRequestLayer.Method != null)
{
Assert.AreEqual(httpRequestLayer.Method.GetHashCode(), httpRequestDatagram.Method.GetHashCode());
Assert.AreEqual(httpRequestLayer.Method.KnownMethod, httpRequestDatagram.Method.KnownMethod);
}
Assert.AreEqual(httpRequestLayer.Uri, httpRequestDatagram.Uri);
}
else
{
Assert.IsFalse(httpDatagram.IsRequest);
Assert.IsFalse(httpLayer.IsRequest);
Assert.IsTrue(httpDatagram.IsResponse);
Assert.IsTrue(httpLayer.IsResponse);
HttpResponseLayer httpResponseLayer = (HttpResponseLayer)httpLayer;
HttpResponseDatagram httpResponseDatagram = (HttpResponseDatagram)httpDatagram;
Assert.AreEqual(httpResponseLayer.StatusCode, httpResponseDatagram.StatusCode);
Assert.AreEqual(httpResponseLayer.ReasonPhrase, httpResponseDatagram.ReasonPhrase);
}
Assert.AreEqual(httpLayer.Header, httpDatagram.Header);
if (httpLayer.Header != null)
{
Assert.AreEqual(httpLayer.Header.GetHashCode(), httpDatagram.Header.GetHashCode());
foreach (var field in httpLayer.Header)
Assert.IsFalse(field.Equals("abc"));
foreach (var field in (IEnumerable)httpLayer.Header)
Assert.IsFalse(field.Equals("abc"));
MoreAssert.AreSequenceEqual(httpLayer.Header.Select(field => field.GetHashCode()), httpDatagram.Header.Select(field => field.GetHashCode()));
if (httpLayer.Header.ContentType != null)
{
var parameters = httpLayer.Header.ContentType.Parameters;
Assert.IsNotNull(((IEnumerable)parameters).GetEnumerator());
Assert.AreEqual<object>(parameters, httpDatagram.Header.ContentType.Parameters);
Assert.AreEqual(parameters.GetHashCode(), httpDatagram.Header.ContentType.Parameters.GetHashCode());
Assert.AreEqual(parameters.Count, httpDatagram.Header.ContentType.Parameters.Count);
int maxParameterNameLength = parameters.Any() ? parameters.Max(pair => pair.Key.Length) : 0;
Assert.IsNull(parameters[new string('a', maxParameterNameLength + 1)]);
}
}
Assert.AreEqual(httpLayer.Body, httpDatagram.Body);
Assert.AreEqual(httpLayer, httpDatagram.ExtractLayer(), "HTTP Layer");
Assert.AreEqual(httpLayer.Length, httpDatagram.Length);
}
}
private static Packet CreateRandomPacket(Random random)
{
Packet packet;
do
{
DateTime packetTimestamp =
random.NextDateTime(PacketTimestamp.MinimumPacketTimestamp, PacketTimestamp.MaximumPacketTimestamp).ToUniversalTime().ToLocalTime();
List<ILayer> layers = new List<ILayer>();
EthernetLayer ethernetLayer = random.NextEthernetLayer();
layers.Add(ethernetLayer);
CreateRandomEthernetPayload(random, ethernetLayer, layers);
packet = PacketBuilder.Build(packetTimestamp, layers);
} while (packet.Length > 65536);
return packet;
}
private static Packet CreateRandomPacket(Random random)
{
Packet packet;
do
{
// TODO. BUG: Limited timestamp due to Windows bug: https://connect.microsoft.com/VisualStudio/feedback/details/559198/net-4-datetime-tolocaltime-is-sometimes-wrong
DateTime packetTimestamp =
random.NextDateTime(new DateTime(2010, 1, 1), new DateTime(2010, 12, 31)).ToUniversalTime().ToLocalTime();
//random.NextDateTime(PacketTimestamp.MinimumPacketTimestamp, PacketTimestamp.MaximumPacketTimestamp).ToUniversalTime().ToLocalTime();
List<ILayer> layers = new List<ILayer>();
EthernetLayer ethernetLayer = random.NextEthernetLayer();
layers.Add(ethernetLayer);
CreateRandomEthernetPayload(random, ethernetLayer, layers);
packet = PacketBuilder.Build(packetTimestamp, layers);
} while (packet.Length > 65536);
return packet;
}