internal static IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionSequenceBased CreateSpecificInstance(DataSegment data)
{
IpV6TaggerIdType taggerIdType = (IpV6TaggerIdType)((data[Offset.TaggerIdType] & Mask.TaggerIdType) >> Shift.TaggerIdType);
int taggerIdLength = (taggerIdType == IpV6TaggerIdType.Null ? 0 : (data[Offset.TaggerIdLength] & Mask.TaggerIdLength) + 1);
if (data.Length < Offset.TaggerId + taggerIdLength)
{
return(null);
}
DataSegment identifier = data.Subsegment(Offset.TaggerId + taggerIdLength, data.Length - Offset.TaggerId - taggerIdLength);
switch (taggerIdType)
{
case IpV6TaggerIdType.Null:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionNull(identifier));
case IpV6TaggerIdType.Default:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionDefault(data.Subsegment(Offset.TaggerId, taggerIdLength), identifier));
case IpV6TaggerIdType.IpV4:
if (taggerIdLength != IpV4Address.SizeOf)
{
return(null);
}
IpV4Address ipV4Address = data.ReadIpV4Address(Offset.TaggerId, Endianity.Big);
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionIpV4(ipV4Address, identifier));
case IpV6TaggerIdType.IpV6:
if (taggerIdLength != IpV6Address.SizeOf)
{
return(null);
}
IpV6Address ipV6Address = data.ReadIpV6Address(Offset.TaggerId, Endianity.Big);
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionIpV6(ipV6Address, identifier));
default:
return(null);
}
}
public static IpV6Option NextIpV6Option(this Random random)
{
IpV6OptionType optionType = random.NextEnum <IpV6OptionType>();
switch (optionType)
{
case IpV6OptionType.Pad1:
return(new IpV6OptionPad1());
case IpV6OptionType.PadN:
return(new IpV6OptionPadN(random.Next(10)));
case IpV6OptionType.JumboPayload:
return(new IpV6OptionJumboPayload(random.NextUInt()));
case IpV6OptionType.TunnelEncapsulationLimit:
return(new IpV6OptionTunnelEncapsulationLimit(random.NextByte()));
case IpV6OptionType.RouterAlert:
return(new IpV6OptionRouterAlert(random.NextEnum <IpV6RouterAlertType>()));
case IpV6OptionType.QuickStart:
return(new IpV6OptionQuickStart(random.NextEnum <IpV4OptionQuickStartFunction>(),
random.NextByte(IpOptionQuickStartCommon.RateMaximumValue + 1), random.NextByte(),
random.NextUInt() & 0x3FFFFFFF));
case IpV6OptionType.Calipso:
return(new IpV6OptionCalipso(random.NextEnum <IpV6CalipsoDomainOfInterpretation>(), random.NextByte(), random.NextUShort(),
random.NextDataSegment(random.NextInt(0, IpV6OptionCalipso.CompartmentBitmapMaxLength + 1) / 4 * sizeof(int))));
case IpV6OptionType.SimplifiedMulticastForwardingDuplicatePacketDetection:
if (random.NextBool())
{
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionSequenceHashAssistValue(random.NextDataSegment(random.NextInt(1, 100))));
}
IpV6TaggerIdType taggerIdType = random.NextEnum <IpV6TaggerIdType>();
DataSegment identifier = random.NextDataSegment(random.NextInt(0, 100));
switch (taggerIdType)
{
case IpV6TaggerIdType.Null:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionNull(identifier));
case IpV6TaggerIdType.Default:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionDefault(random.NextDataSegment(random.NextInt(1, 17)), identifier));
case IpV6TaggerIdType.IpV4:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionIpV4(random.NextIpV4Address(), identifier));
case IpV6TaggerIdType.IpV6:
return(new IpV6OptionSimplifiedMulticastForwardingDuplicatePacketDetectionIpV6(random.NextIpV6Address(), identifier));
default:
throw new InvalidOperationException(string.Format("Invalid taggerIdType value {0}", taggerIdType));
}
case IpV6OptionType.HomeAddress:
return(new IpV6OptionHomeAddress(random.NextIpV6Address()));
case IpV6OptionType.EndpointIdentification:
return(new IpV6OptionEndpointIdentification(random.NextDataSegment(random.Next(10)), random.NextDataSegment(random.Next(10))));
case IpV6OptionType.RoutingProtocolLowPowerAndLossyNetworksOption:
return(new IpV6OptionRoutingProtocolLowPowerAndLossyNetworks(random.NextBool(), random.NextBool(), random.NextBool(), random.NextByte(),
random.NextUShort(), random.NextDataSegment(random.Next(10))));
case IpV6OptionType.IdentifierLocatorNetworkProtocolNonce:
return(new IpV6OptionIdentifierLocatorNetworkProtocolNonce(random.NextDataSegment(random.Next(10))));
case IpV6OptionType.LineIdentification:
return(new IpV6OptionLineIdentificationDestination(random.NextDataSegment(random.Next(10))));
default:
throw new InvalidOperationException(string.Format("Invalid optionType value {0}", optionType));
}
}
