private void ForwardToReceiver(EthernetFrame frame, IMACInterface sender)
{
this.Log(LogLevel.Noisy, "Received frame from interface {0}", sender.MAC);
if (!frame.DestinationMAC.HasValue)
{
this.Log(LogLevel.Warning, "Destination MAC not set, the frame has unsupported format.");
return;
}
FrameProcessed?.Invoke(this, sender, frame.Bytes);
if (!started)
{
return;
}
lock (innerLock)
{
var interestingIfaces = macMapping.TryGetValue(frame.DestinationMAC.Value, out var destIface)
? ifaces.Where(x => (x.PromiscuousMode && x.Interface != sender) || x.Interface == destIface)
: ifaces.Where(x => x.Interface != sender);
if (!TimeDomainsManager.Instance.TryGetVirtualTimeStamp(out var vts))
{
// it happens when sending from tap interface
vts = new TimeStamp(default(TimeInterval), EmulationManager.ExternalWorld);
}
foreach (var iface in interestingIfaces)
{
this.Log(LogLevel.Noisy, "Forwarding frame to interface {0}", iface.Interface.MAC);
if (iface.AsTap != null)
{
iface.AsTap.ReceiveFrame(frame.Clone());
continue;
}
iface.Machine.HandleTimeDomainEvent(iface.Interface.ReceiveFrame, frame.Clone(), vts, () =>
{
FrameTransmitted?.Invoke(this, sender, iface.Interface, frame.Bytes);
});
}
}
// at the same we will potentially add current MAC address assigned to the source
if (!frame.SourceMAC.HasValue)
{
this.Log(LogLevel.Warning, "Source MAC not set, cannot update switch cache.");
return;
}
lock (innerLock)
{
macMapping[frame.SourceMAC.Value] = sender;
}
}