// if resourceName contains an @ and the string behind the @ is different from the current OverlayName the ForwardingOptionsType.destinationOverlay is set
public bool AddDestinationOverlay(string resourceName)
{
String destinationOverlay = null;
if (m_ReloadConfig.OverlayName == null)
return false;
else if (!resourceName.Contains(m_ReloadConfig.OverlayName) && resourceName.Contains("@"))
{
destinationOverlay = resourceName.Substring(resourceName.IndexOf("@") + 1);
}
else if (resourceName != null)
{
destinationOverlay = resourceName; //TODO: remove?
}
else
return false;
if (forwarding_header.fw_options == null)
{
forwarding_header.fw_options = new List<ForwardingOption>();
}
ForwardingOption option;
byte[] bytes;
//destinationOverlay
option = new ForwardingOption();
option.fwo_type = ForwardingOptionsType.destinationOverlay;
bytes = System.Text.Encoding.Unicode.GetBytes(destinationOverlay); // TODO: Unicode for sure?
option.bytes = bytes;
option.length = (UInt16)bytes.Length;
forwarding_header.fw_options.Add(option);
option = new ForwardingOption();
option.fwo_type = ForwardingOptionsType.sourceOverlay;
bytes = System.Text.Encoding.Unicode.GetBytes(m_ReloadConfig.OverlayName); // TODO: Unicode for sure?
option.bytes = bytes;
option.length = (UInt16)bytes.Length;
//forwarding_header.fw_options.Add(option);
return true; //TODO:
}
public List<ForwardingOption> ReadOptionList(BinaryReader reader, int Length)
{
List<ForwardingOption> option_list = new List<ForwardingOption>();
if (Length != 0)
{
int counted_bytes = Length;
while (counted_bytes > 3)
{
ForwardingOption forw_opt = new ForwardingOption();
forw_opt.fwo_type = (ForwardingOptionsType)reader.ReadByte();
counted_bytes--;
forw_opt.flags = reader.ReadByte();
counted_bytes--;
forw_opt.length = (UInt16)System.Net.IPAddress.NetworkToHostOrder(reader.ReadInt16());
counted_bytes = counted_bytes - 2;
forw_opt.bytes = reader.ReadBytes(forw_opt.length);
counted_bytes = counted_bytes - forw_opt.length;
option_list.Add(forw_opt);
}
if (counted_bytes != 0)
{
m_ReloadConfig.Logger(ReloadGlobals.TRACEFLAGS.T_ERROR, "invalid length within ForwardingOptions");
}
}
return option_list;
}
//Proprietary //--Joscha
//Reverse and set the ForwardingOptionsType.sourceOverlay and ForwardingOptionsType.destinationOverlay to recmsg
public void addOverlayForwardingOptions(ReloadMessage recmsg)
{
if (recmsg.forwarding_header.via_list != null)
{
foreach (Destination destx in recmsg.forwarding_header.via_list)
m_ReloadConfig.Logger(ReloadGlobals.TRACEFLAGS.T_INFO,
String.Format("addOverlayForwardingOptions Via={0} ", destx.ToString()));
}
if (recmsg.forwarding_header.destination_list != null)
{
foreach (Destination desty in recmsg.forwarding_header.destination_list)
m_ReloadConfig.Logger(ReloadGlobals.TRACEFLAGS.T_INFO,
String.Format("addOverlayForwardingOptions Dest={0} ", desty.ToString()));
}
if (recmsg.forwarding_header.fw_options != null)
{
this.forwarding_header.fw_options = new List<ForwardingOption>();
foreach (ForwardingOption option in recmsg.forwarding_header.fw_options)
{
if (option.fwo_type == ForwardingOptionsType.sourceOverlay)
{
string source_overlay = System.Text.Encoding.Unicode.GetString(option.bytes);
ForwardingOption answerOption = new ForwardingOption();
answerOption.fwo_type = ForwardingOptionsType.destinationOverlay;
byte[] bytes = System.Text.Encoding.Unicode.GetBytes(source_overlay); // TODO: Unicode for sure?
answerOption.bytes = bytes;
answerOption.length = (UInt16)bytes.Length;
this.forwarding_header.fw_options.Add(answerOption);
//if the message is stored by the GateWay itself the storeanswer has to be processed by the Gateway again
//if (m_ReloadConfig.ThisMachine is GWMachine)
// recmsg.LastHopNodeId = m_ReloadConfig.ThisMachine.Topology.Id;
}
if (option.fwo_type == ForwardingOptionsType.destinationOverlay)
{
string destination_overlay = System.Text.Encoding.Unicode.GetString(option.bytes);
ForwardingOption answerOption = new ForwardingOption();
answerOption.fwo_type = ForwardingOptionsType.sourceOverlay;
byte[] bytes = System.Text.Encoding.Unicode.GetBytes(destination_overlay); // TODO: Unicode for sure?
answerOption.bytes = bytes;
answerOption.length = (UInt16)bytes.Length;
this.forwarding_header.fw_options.Add(answerOption);
//if the message is stored by the GateWay itself the storeanswer has to be processed by the Gateway again
//if (m_ReloadConfig.ThisMachine is GWMachine)
// recmsg.LastHopNodeId = m_ReloadConfig.ThisMachine.Topology.Id;
}
}
}
}