private Mapping CreatePortMap(Mapping mapping, bool create)
{
List <byte> package = new List <byte> ();
package.Add(PmpConstants.Version);
package.Add(mapping.Protocol == Protocol.Tcp ? PmpConstants.OperationCodeTcp : PmpConstants.OperationCodeUdp);
package.Add((byte)0); //reserved
package.Add((byte)0); //reserved
package.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder((short)mapping.PrivatePort)));
package.AddRange(BitConverter.GetBytes(create ? IPAddress.HostToNetworkOrder((short)mapping.PublicPort) : (short)0));
package.AddRange(BitConverter.GetBytes(IPAddress.HostToNetworkOrder(mapping.Lifetime)));
CreatePortMapAsyncState state = new CreatePortMapAsyncState();
state.Buffer = package.ToArray();
state.Mapping = mapping;
ThreadPool.QueueUserWorkItem(new WaitCallback(CreatePortMapAsync), state);
#if SSHARP
state.ResetEvent.Wait();
#else
WaitHandle.WaitAll(new WaitHandle[] { state.ResetEvent });
#endif
if (!state.Success)
{
string type = create ? "create" : "delete";
throw new MappingException(String.Format("Failed to {0} portmap (protocol={1}, private port={2}", type, mapping.Protocol, mapping.PrivatePort));
}
return(state.Mapping);
}
internal static bool WaitOne(WaitHandle waitHandle, int millisecondsTimeout, bool exitContext)
{
return(waitHandle.WaitOne(millisecondsTimeout, exitContext));
}
