/// <summary>
/// Serlialize this routing option into something which
/// can be passed to an IpV4Packet class.
/// </summary>
/// <param name="optionType">
/// There are 3 types of routing option: loose source, strict source and record.
/// </param>
/// <returns>
/// An IpV4Option class which can be passed to an IpV4Packet.
/// </returns>
/// <exception cref="ArgumentException">
/// The option type is not a routing option.
/// </exception>
public IpV4Option Serialize(IpV4OptionNumber optionType)
{
IpV4Option newOption = new IpV4Option();
if (optionType != IpV4OptionNumber.LooseSourceRouting &&
optionType != IpV4OptionNumber.StrictSourceRouting &&
optionType != IpV4OptionNumber.RecordRoute)
{
throw new ArgumentException("The option type must be a routing option (strict source routing, loose source routing or record route", "option");
}
// fill in basic fields
newOption.Class = IpV4OptionClass.Control;
newOption.OptionType = optionType;
newOption.IsCopied = true;
newOption.Length = (m_routeData.Length * 4) + 3;
newOption.Data = new byte[(m_routeData.Length * 4) + 1];
// fill in the pointer
newOption.Data [0] = (byte)m_pointer;
// fill in the route data
for (int i = 0; i < m_routeData.Length; i++)
{
Array.Copy(m_routeData[i].GetAddressBytes(), 0, newOption.Data, (i * 4) + 1, 4);
}
return(newOption);
}
/// <summary>
/// Serlialize this routing option into something which
/// can be passed to an IpV4Packet class.
/// </summary>
/// <param name="optionType">
/// There are 3 types of routing option: loose source, strict source and record.
/// </param>
/// <returns>
/// An IpV4Option class which can be passed to an IpV4Packet.
/// </returns>
/// <exception cref="ArgumentException">
/// The option type is not a routing option.
/// </exception>
public IpV4Option Serialize (IpV4OptionNumber optionType)
{
IpV4Option newOption = new IpV4Option ();
if (optionType != IpV4OptionNumber.LooseSourceRouting &&
optionType != IpV4OptionNumber.StrictSourceRouting &&
optionType != IpV4OptionNumber.RecordRoute)
{
throw new ArgumentException ("The option type must be a routing option (strict source routing, loose source routing or record route", "option");
}
// fill in basic fields
newOption.Class = IpV4OptionClass.Control;
newOption.OptionType = optionType;
newOption.IsCopied = true;
newOption.Length = (m_routeData.Length * 4) + 3;
newOption.Data = new byte[(m_routeData.Length * 4) + 1];
// fill in the pointer
newOption.Data [0] = (byte)m_pointer;
// fill in the route data
for (int i = 0; i < m_routeData.Length; i++)
{
Array.Copy (m_routeData[i].GetAddressBytes (), 0, newOption.Data, (i * 4) + 1, 4);
}
return newOption;
}
