internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
{
return(null);
}
ushort bindingId = data.ReadUShort(Offset.BindingId, Endianity.Big);
IpV6BindingAcknowledgementStatus status = (IpV6BindingAcknowledgementStatus)data[Offset.Status];
bool simultaneousHomeAndForeignBinding = data.ReadBool(Offset.SimultaneousHomeAndForeignBinding, Mask.SimultaneousHomeAndForeignBinding);
byte priority = (byte)(data[Offset.Priority] & Mask.Priority);
if (data.Length == OptionDataMinimumLength)
{
return(new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority));
}
if (data.Length == OptionDataMinimumLength + IpV4Address.SizeOf)
{
IpV4Address careOfAddress = data.ReadIpV4Address(Offset.CareOfAddress, Endianity.Big);
return(new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority, careOfAddress));
}
if (data.Length == OptionDataMinimumLength + IpV6Address.SizeOf)
{
IpV6Address careOfAddress = data.ReadIpV6Address(Offset.CareOfAddress, Endianity.Big);
return(new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority, careOfAddress));
}
return(null);
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
{
return(null);
}
IpV6LocalMobilityAnchorAddressCode code = (IpV6LocalMobilityAnchorAddressCode)data[Offset.Code];
switch (code)
{
case IpV6LocalMobilityAnchorAddressCode.IpV6:
{
if (data.Length != Offset.LocalMobilityAnchorAddress + IpV6Address.SizeOf)
{
return(null);
}
IpV6Address localMobilityAnchorAddress = data.ReadIpV6Address(Offset.LocalMobilityAnchorAddress, Endianity.Big);
return(new IpV6MobilityOptionLocalMobilityAnchorAddress(localMobilityAnchorAddress));
}
case IpV6LocalMobilityAnchorAddressCode.IpV4:
{
if (data.Length != Offset.LocalMobilityAnchorAddress + IpV4Address.SizeOf)
{
return(null);
}
IpV4Address localMobilityAnchorAddress = data.ReadIpV4Address(Offset.LocalMobilityAnchorAddress, Endianity.Big);
return(new IpV6MobilityOptionLocalMobilityAnchorAddress(localMobilityAnchorAddress));
}
default:
return(null);
}
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
return null;
bool isIpV4 = data.ReadBool(Offset.IsIpV4, Mask.IsIpV4);
bool isIpV6 = data.ReadBool(Offset.IsIpV6, Mask.IsIpV6);
if (isIpV4 && !isIpV6)
{
if (data.Length != OptionDataMinimumLength + IpV4Address.SizeOf)
return null;
IpV4Address localMobilityAddress = data.ReadIpV4Address(Offset.LocalMobilityAddress, Endianity.Big);
return new IpV6MobilityOptionRedirect(localMobilityAddress);
}
if (isIpV6 && !isIpV4)
{
if (data.Length != OptionDataMinimumLength + IpV6Address.SizeOf)
return null;
IpV6Address localMobilityAddress = data.ReadIpV6Address(Offset.LocalMobilityAddress, Endianity.Big);
return new IpV6MobilityOptionRedirect(localMobilityAddress);
}
return null;
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
return null;
return new IpV6MobilityOptionAlternateIpV4CareOfAddress(data.ReadIpV4Address(0, Endianity.Big));
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
{
return(null);
}
bool isIpV4 = data.ReadBool(Offset.IsIpV4, Mask.IsIpV4);
bool isIpV6 = data.ReadBool(Offset.IsIpV6, Mask.IsIpV6);
if (isIpV4 && !isIpV6)
{
if (data.Length != OptionDataMinimumLength + IpV4Address.SizeOf)
{
return(null);
}
IpV4Address localMobilityAddress = data.ReadIpV4Address(Offset.LocalMobilityAddress, Endianity.Big);
return(new IpV6MobilityOptionRedirect(localMobilityAddress));
}
if (isIpV6 && !isIpV4)
{
if (data.Length != OptionDataMinimumLength + IpV6Address.SizeOf)
{
return(null);
}
IpV6Address localMobilityAddress = data.ReadIpV6Address(Offset.LocalMobilityAddress, Endianity.Big);
return(new IpV6MobilityOptionRedirect(localMobilityAddress));
}
return(null);
}
internal override DnsResourceData CreateInstance(DataSegment data)
{
if (data.Length < 5)
{
return((DnsResourceData)null);
}
return((DnsResourceData) new DnsResourceDataWellKnownService(data.ReadIpV4Address(0, Endianity.Big), (IpV4Protocol)data[4], data.Subsegment(5, data.Length - 5)));
}
internal override DnsResourceData CreateInstance(DataSegment data)
{
if (data.Length != IpV4Address.SizeOf)
{
return(null);
}
return(new DnsResourceDataIpV4(data.ReadIpV4Address(0, Endianity.Big)));
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
{
return(null);
}
return(new IpV6MobilityOptionAlternateIpV4CareOfAddress(data.ReadIpV4Address(0, Endianity.Big)));
}
internal static bool Read(DataSegment data, out IpV4Address address)
{
if (data.Length != OptionDataLength)
{
address = IpV4Address.Zero;
return false;
}
address = data.ReadIpV4Address(Offset.Address, Endianity.Big);
return true;
}
internal static bool Read(DataSegment data, out IpV4Address address)
{
if (data.Length != OptionDataLength)
{
address = IpV4Address.Zero;
return(false);
}
address = data.ReadIpV4Address(Offset.Address, Endianity.Big);
return(true);
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
{
return(null);
}
byte prefixLength = (byte)((data[Offset.PrefixLength] & Mask.PrefixLength) >> Shift.PrefixLength);
IpV4Address homeAddress = data.ReadIpV4Address(Offset.HomeAddress, Endianity.Big);
return(new IpV6MobilityOptionIpV4HomeAddressRequest(prefixLength, homeAddress));
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
{
return(null);
}
IpV6AddressAcknowledgementStatus status = (IpV6AddressAcknowledgementStatus)data[Offset.Status];
byte prefixLength = (byte)((data[Offset.PrefixLength] & Mask.PrefixLength) >> Shift.PrefixLength);
IpV4Address homeAddress = data.ReadIpV4Address(Offset.HomeAddress, Endianity.Big);
return(new IpV6MobilityOptionIpV4AddressAcknowledgement(status, prefixLength, homeAddress));
}
internal override DnsResourceData CreateInstance(DataSegment data)
{
if (data.Length < ConstantPartLength)
{
return(null);
}
IpV4Address address = data.ReadIpV4Address(Offset.Address, Endianity.Big);
IpV4Protocol protocol = (IpV4Protocol)data[Offset.Protocol];
DataSegment bitmap = data.Subsegment(Offset.Bitmap, data.Length - Offset.Bitmap);
return(new DnsResourceDataWellKnownService(address, protocol, bitmap));
}
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);
}
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
return null;
byte prefixLength = (byte)((data[Offset.PrefixLength] & Mask.PrefixLength) >> Shift.PrefixLength);
bool requestPrefix = data.ReadBool(Offset.RequestPrefix, Mask.RequestPrefix);
IpV4Address homeAddress = data.ReadIpV4Address(Offset.HomeAddress, Endianity.Big);
return new IpV6MobilityOptionIpV4HomeAddress(prefixLength, requestPrefix, homeAddress);
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
return null;
IpV6AddressAcknowledgementStatus status = (IpV6AddressAcknowledgementStatus)data[Offset.Status];
byte prefixLength = (byte)((data[Offset.PrefixLength] & Mask.PrefixLength) >> Shift.PrefixLength);
IpV4Address homeAddress = data.ReadIpV4Address(Offset.HomeAddress, Endianity.Big);
return new IpV6MobilityOptionIpV4AddressAcknowledgement(status, prefixLength, homeAddress);
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
return null;
ushort bindingId = data.ReadUShort(Offset.BindingId, Endianity.Big);
IpV6BindingAcknowledgementStatus status = (IpV6BindingAcknowledgementStatus)data[Offset.Status];
bool simultaneousHomeAndForeignBinding = data.ReadBool(Offset.SimultaneousHomeAndForeignBinding, Mask.SimultaneousHomeAndForeignBinding);
byte priority = (byte)(data[Offset.Priority] & Mask.Priority);
if (data.Length == OptionDataMinimumLength)
return new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority);
if (data.Length == OptionDataMinimumLength + IpV4Address.SizeOf)
{
IpV4Address careOfAddress = data.ReadIpV4Address(Offset.CareOfAddress, Endianity.Big);
return new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority, careOfAddress);
}
if (data.Length == OptionDataMinimumLength + IpV6Address.SizeOf)
{
IpV6Address careOfAddress = data.ReadIpV6Address(Offset.CareOfAddress, Endianity.Big);
return new IpV6MobilityOptionBindingIdentifier(bindingId, status, simultaneousHomeAndForeignBinding, priority, careOfAddress);
}
return null;
}
internal static IpV6OptionSmfDpdSequenceBased 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 IpV6OptionSmfDpdNull(identifier);
case IpV6TaggerIdType.Default:
return new IpV6OptionSmfDpdDefault(data.Subsegment(Offset.TaggerId, taggerIdLength), identifier);
case IpV6TaggerIdType.IpV4:
if (taggerIdLength != IpV4Address.SizeOf)
return null;
IpV4Address ipV4Address = data.ReadIpV4Address(0, Endianity.Big);
return new IpV6OptionSmfDpdIpV4(ipV4Address, identifier);
case IpV6TaggerIdType.IpV6:
if (taggerIdLength != IpV6Address.SizeOf)
return null;
IpV6Address ipV6Address = data.ReadIpV6Address(0, Endianity.Big);
return new IpV6OptionSmfDpdIpV6(ipV6Address, identifier);
default:
return null;
}
}
internal override IpV6MobilityOption CreateInstance(DataSegment data)
{
if (data.Length < OptionDataMinimumLength)
return null;
IpV6LocalMobilityAnchorAddressCode code = (IpV6LocalMobilityAnchorAddressCode)data[Offset.Code];
switch (code)
{
case IpV6LocalMobilityAnchorAddressCode.IpV6:
{
if (data.Length != Offset.LocalMobilityAnchorAddress + IpV6Address.SizeOf)
return null;
IpV6Address localMobilityAnchorAddress = data.ReadIpV6Address(Offset.LocalMobilityAnchorAddress, Endianity.Big);
return new IpV6MobilityOptionLocalMobilityAnchorAddress(localMobilityAnchorAddress);
}
case IpV6LocalMobilityAnchorAddressCode.IpV4:
{
if (data.Length != Offset.LocalMobilityAnchorAddress + IpV4Address.SizeOf)
return null;
IpV4Address localMobilityAnchorAddress = data.ReadIpV4Address(Offset.LocalMobilityAnchorAddress, Endianity.Big);
return new IpV6MobilityOptionLocalMobilityAnchorAddress(localMobilityAnchorAddress);
}
default:
return null;
}
}
