public virtual NATContext PrivateInput(IPAddress sources, IPAddress destination, ushort Identification)
{
if (sources == null || destination == null)
{
return(null);
}
this.DoEvents();
long sources_key = Ethernet.GetAddress(sources);
lock (this.m_AddressToContext)
{
lock (this.m_syncobj)
{
this.m_AddressToContext.TryGetValue(sources_key, out NATContext context);
if (context == null && 0 != Identification)
{
context = new NATContext()
{
LocalEP = new IPEndPoint(this.m_nat.m_ethernetAddress, 0),
AgingTimePeriod = new Stopwatch(),
Sources = new IPEndPoint(sources, Identification),
Destination = new IPEndPoint(destination, 0),
State = NATContext.StateCode.TCP_NIL,
};
this.m_AddressToContext[sources_key] = context;
}
return(context?.Restart());
}
}
}
public virtual int Release(IPAddress sources)
{
long sources_key = Ethernet.GetAddress(sources);
if (sources == null)
{
return(0);
}
NATContext context = null;
lock (this.m_AddressToContext)
{
lock (this.m_syncobj)
{
this.m_AddressToContext.TryRemove(sources_key, out context);
if (context == null)
{
return(0);
}
}
}
context.Dispose();
return(1);
}