public void RandomIgmpTest()
{
EthernetLayer ethernetLayer = new EthernetLayer
{
Source = new MacAddress("00:01:02:03:04:05"),
Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
};
int seed = new Random().Next();
Console.WriteLine("Seed: " + seed);
Random random = new Random(seed);
for (int i = 0; i != 200; ++i)
{
IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
ipV4Layer.HeaderChecksum = null;
Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(IpV4Protocol.InternetGroupManagementProtocol, false);
IgmpLayer igmpLayer = random.NextIgmpLayer();
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, igmpLayer);
Assert.IsTrue(packet.IsValid, "IsValid");
// Ethernet
ethernetLayer.EtherType = ipLayer == ipV4Layer ? EthernetType.IpV4 : EthernetType.IpV6;
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
ethernetLayer.EtherType = EthernetType.None;
// IP.
if (ipV4Layer == ipLayer)
{
// IPv4.
ipV4Layer.Protocol = IpV4Protocol.InternetGroupManagementProtocol;
ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.IpV4.ExtractLayer()).HeaderChecksum;
Assert.AreEqual(ipV4Layer, packet.Ethernet.IpV4.ExtractLayer(), "IPv4 Layer");
ipV4Layer.HeaderChecksum = null;
}
else
{
// IPv6.
Assert.AreEqual(ipLayer, packet.Ethernet.IpV6.ExtractLayer(), "IPv6 Layer");
}
// IGMP
Assert.IsTrue(packet.Ethernet.Ip.Igmp.IsChecksumCorrect);
Assert.AreEqual(igmpLayer, packet.Ethernet.Ip.Igmp.ExtractLayer(), "IGMP Layer");
Assert.AreEqual(igmpLayer.GetHashCode(), packet.Ethernet.Ip.Igmp.ExtractLayer().GetHashCode(), "IGMP Layer");
Assert.AreNotEqual(igmpLayer, null);
Assert.AreNotEqual(igmpLayer, random.NextPayloadLayer(igmpLayer.Length));
Assert.AreNotEqual(igmpLayer.GetHashCode(), random.NextPayloadLayer(igmpLayer.Length).GetHashCode());
if (packet.Ethernet.Ip.Igmp.QueryVersion != IgmpQueryVersion.Version3)
{
MoreAssert.IsSmallerOrEqual(IgmpDatagram.MaxMaxResponseTime, packet.Ethernet.Ip.Igmp.MaxResponseTime);
}
if (packet.Ethernet.Ip.Igmp.MessageType != IgmpMessageType.MembershipQuery)
{
Assert.AreEqual(IgmpQueryVersion.None, packet.Ethernet.Ip.Igmp.QueryVersion);
}
switch (igmpLayer.MessageTypeValue)
{
case IgmpMessageType.CreateGroupRequestVersion0:
case IgmpMessageType.CreateGroupReplyVersion0:
case IgmpMessageType.JoinGroupRequestVersion0:
case IgmpMessageType.JoinGroupReplyVersion0:
case IgmpMessageType.LeaveGroupRequestVersion0:
case IgmpMessageType.LeaveGroupReplyVersion0:
case IgmpMessageType.ConfirmGroupRequestVersion0:
case IgmpMessageType.ConfirmGroupReplyVersion0:
Assert.AreEqual(0, packet.Ethernet.Ip.Igmp.Version);
IgmpVersion0Layer igmpVersion0Layer = (IgmpVersion0Layer)igmpLayer;
Assert.AreEqual(igmpVersion0Layer.IdentifierValue, packet.Ethernet.Ip.Igmp.Identifier);
Assert.AreEqual(igmpVersion0Layer.AccessKeyValue, packet.Ethernet.Ip.Igmp.AccessKey);
switch (igmpLayer.MessageTypeValue)
{
case IgmpMessageType.CreateGroupRequestVersion0:
Assert.AreEqual(((IgmpCreateGroupRequestVersion0Layer)igmpLayer).CreateGroupRequestCode, packet.Ethernet.Ip.Igmp.CreateGroupRequestCode);
break;
case IgmpMessageType.CreateGroupReplyVersion0:
case IgmpMessageType.JoinGroupReplyVersion0:
case IgmpMessageType.LeaveGroupReplyVersion0:
case IgmpMessageType.ConfirmGroupReplyVersion0:
IgmpReplyVersion0Layer igmpReplyVersion0Layer = (IgmpReplyVersion0Layer)igmpVersion0Layer;
Assert.AreEqual(igmpReplyVersion0Layer.Code, packet.Ethernet.Ip.Igmp.ReplyCode);
if (packet.Ethernet.Ip.Igmp.ReplyCode == IgmpVersion0ReplyCode.RequestPendingRetryInThisManySeconds)
{
Assert.AreEqual(igmpReplyVersion0Layer.RetryInThisManySeconds, packet.Ethernet.Ip.Igmp.RetryInThisManySeconds);
}
break;
}
break;
case IgmpMessageType.MembershipQuery:
switch (igmpLayer.QueryVersion)
{
case IgmpQueryVersion.Version1:
Assert.AreEqual(1, packet.Ethernet.Ip.Igmp.Version);
break;
case IgmpQueryVersion.Version2:
Assert.AreEqual(2, packet.Ethernet.Ip.Igmp.Version);
break;
case IgmpQueryVersion.Version3:
Assert.AreEqual(3, packet.Ethernet.Ip.Igmp.Version);
break;
default:
Assert.Fail(igmpLayer.QueryVersion.ToString());
break;
}
break;
case IgmpMessageType.MembershipReportVersion1:
Assert.AreEqual(1, packet.Ethernet.Ip.Igmp.Version);
break;
case IgmpMessageType.MembershipReportVersion2:
case IgmpMessageType.LeaveGroupVersion2:
Assert.AreEqual(2, packet.Ethernet.Ip.Igmp.Version);
break;
case IgmpMessageType.MembershipReportVersion3:
Assert.AreEqual(3, packet.Ethernet.Ip.Igmp.Version);
break;
default:
Assert.Fail(igmpLayer.MessageTypeValue.ToString());
break;
}
foreach (IgmpGroupRecordDatagram groupRecord in packet.Ethernet.Ip.Igmp.GroupRecords)
{
Assert.IsNotNull(groupRecord.ToString());
}
}
}
public void RandomIgmpTest()
{
EthernetLayer ethernetLayer = new EthernetLayer
{
Source = new MacAddress("00:01:02:03:04:05"),
Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
};
Random random = new Random();
IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
ipV4Layer.HeaderChecksum = null;
for (int i = 0; i != 200; ++i)
{
IgmpLayer igmpLayer = random.NextIgmpLayer();
Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipV4Layer, igmpLayer);
Assert.IsTrue(packet.IsValid, "IsValid");
// Ethernet
ethernetLayer.EtherType = EthernetType.IpV4;
Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
// IPv4
ipV4Layer.Protocol = IpV4Protocol.InternetGroupManagementProtocol;
ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.IpV4.ExtractLayer()).HeaderChecksum;
Assert.AreEqual(ipV4Layer, packet.Ethernet.IpV4.ExtractLayer(), "IPv4 Layer");
ipV4Layer.HeaderChecksum = null;
// IGMP
Assert.IsTrue(packet.Ethernet.IpV4.Igmp.IsChecksumCorrect);
Assert.AreEqual(igmpLayer, packet.Ethernet.IpV4.Igmp.ExtractLayer(), "IGMP Layer");
Assert.AreEqual(igmpLayer.GetHashCode(), packet.Ethernet.IpV4.Igmp.ExtractLayer().GetHashCode(), "IGMP Layer");
Assert.AreNotEqual(igmpLayer, null);
Assert.AreNotEqual(igmpLayer, random.NextPayloadLayer(igmpLayer.Length));
Assert.AreNotEqual(igmpLayer.GetHashCode(), random.NextPayloadLayer(igmpLayer.Length).GetHashCode());
if (packet.Ethernet.IpV4.Igmp.QueryVersion != IgmpQueryVersion.Version3)
{
MoreAssert.IsSmallerOrEqual(IgmpDatagram.MaxMaxResponseTime, packet.Ethernet.IpV4.Igmp.MaxResponseTime);
}
if (packet.Ethernet.IpV4.Igmp.MessageType != IgmpMessageType.MembershipQuery)
{
Assert.AreEqual(IgmpQueryVersion.None, packet.Ethernet.IpV4.Igmp.QueryVersion);
}
switch (igmpLayer.MessageType)
{
case IgmpMessageType.MembershipQuery:
switch (igmpLayer.QueryVersion)
{
case IgmpQueryVersion.Version1:
Assert.AreEqual(1, packet.Ethernet.IpV4.Igmp.Version);
break;
case IgmpQueryVersion.Version2:
Assert.AreEqual(2, packet.Ethernet.IpV4.Igmp.Version);
break;
case IgmpQueryVersion.Version3:
Assert.AreEqual(3, packet.Ethernet.IpV4.Igmp.Version);
break;
default:
Assert.Fail(igmpLayer.QueryVersion.ToString());
break;
}
break;
case IgmpMessageType.MembershipReportVersion1:
Assert.AreEqual(1, packet.Ethernet.IpV4.Igmp.Version);
break;
case IgmpMessageType.MembershipReportVersion2:
case IgmpMessageType.LeaveGroupVersion2:
Assert.AreEqual(2, packet.Ethernet.IpV4.Igmp.Version);
break;
case IgmpMessageType.MembershipReportVersion3:
Assert.AreEqual(3, packet.Ethernet.IpV4.Igmp.Version);
break;
default:
Assert.Fail(igmpLayer.MessageType.ToString());
break;
}
foreach (IgmpGroupRecordDatagram groupRecord in packet.Ethernet.IpV4.Igmp.GroupRecords)
{
Assert.IsNotNull(groupRecord.ToString());
}
}
}
