internal Lease(BinaryReader bR)
{
switch (bR.ReadByte())
{
case 1:
_type = (LeaseType)bR.ReadByte();
_clientIdentifier = DhcpOption.Parse(bR.BaseStream) as ClientIdentifierOption;
_clientIdentifier.ParseOptionValue();
_hostName = bR.ReadShortString();
if (_hostName == "")
{
_hostName = null;
}
_hardwareAddress = bR.ReadBuffer();
_address = IPAddressExtension.Parse(bR);
_leaseObtained = bR.ReadDate();
_leaseExpires = bR.ReadDate();
break;
default:
throw new InvalidDataException("Lease data format version not supported.");
}
}
internal Lease(BinaryReader bR)
{
byte version = bR.ReadByte();
switch (version)
{
case 1:
case 2:
_type = (LeaseType)bR.ReadByte();
_clientIdentifier = DhcpOption.Parse(bR.BaseStream) as ClientIdentifierOption;
_clientIdentifier.ParseOptionValue();
_hostName = bR.ReadShortString();
if (string.IsNullOrWhiteSpace(_hostName))
{
_hostName = null;
}
_hardwareAddress = bR.ReadBuffer();
_address = IPAddressExtension.Parse(bR);
if (version >= 2)
{
_comments = bR.ReadShortString();
if (string.IsNullOrWhiteSpace(_comments))
{
_comments = null;
}
}
_leaseObtained = bR.ReadDateTime();
_leaseExpires = bR.ReadDateTime();
break;
default:
throw new InvalidDataException("Lease data format version not supported.");
}
}
private void ParseOptions(Stream s, List <DhcpOption> options)
{
while (true)
{
DhcpOption option = DhcpOption.Parse(s);
if (option.Code == DhcpOptionCode.End)
{
break;
}
if (option.Code == DhcpOptionCode.Pad)
{
continue;
}
bool optionExists = false;
foreach (DhcpOption existingOption in options)
{
if (existingOption.Code == option.Code)
{
//option already exists so append current option value into existing option
existingOption.AppendOptionValue(option);
optionExists = true;
break;
}
}
if (optionExists)
{
continue;
}
//add option to list
options.Add(option);
switch (option.Code)
{
case DhcpOptionCode.DhcpMessageType:
_dhcpMessageType = option as DhcpMessageTypeOption;
break;
case DhcpOptionCode.ClientIdentifier:
_clientIdentifier = option as ClientIdentifierOption;
break;
case DhcpOptionCode.HostName:
_hostName = option as HostNameOption;
break;
case DhcpOptionCode.ClientFullyQualifiedDomainName:
_clientFullyQualifiedDomainName = option as ClientFullyQualifiedDomainNameOption;
break;
case DhcpOptionCode.ParameterRequestList:
_parameterRequestList = option as ParameterRequestListOption;
break;
case DhcpOptionCode.MaximumDhcpMessageSize:
_maximumDhcpMessageSize = option as MaximumDhcpMessageSizeOption;
break;
case DhcpOptionCode.ServerIdentifier:
_serverIdentifier = option as ServerIdentifierOption;
break;
case DhcpOptionCode.RequestedIpAddress:
_requestedIpAddress = option as RequestedIpAddressOption;
break;
case DhcpOptionCode.OptionOverload:
_optionOverload = option as OptionOverloadOption;
break;
}
}
}
