public async Task <IEnumerable <NatDevice> > OpenPort(int port)
{
var gatewayInterfaces = GetGatewayForDestination(new IPAddress(new byte[] { 8, 8, 8, 8 }));
var cts = new CancellationTokenSource(2000);
var devices = await nat.DiscoverDevicesAsync(PortMapper.Upnp, cts);
if (devices.Any(dev => LocalAddress(dev).AddressFamily == AddressFamily.InterNetworkV6))
{
}
Debug.WriteLine($"Found UPnP devices: {string.Join(", ", devices.Select(dev => LocalAddress(dev)))}");
foreach (var device in devices.Where(dev => gatewayInterfaces.Any(addr => LocalAddress(dev).Equals(addr))))
{
Debug.WriteLine($"Setting UPnP redirects for host {LocalAddress(device)}");
try
{
await device.CreatePortMapAsync(new Mapping(Protocol.Udp, port, port, 86400, "MonoTorrent"));
}
catch (Exception ex)
{
}
try
{
await device.CreatePortMapAsync(new Mapping(Protocol.Tcp, port, port, 86400, "MonoTorrent"));
}
catch (Exception ex)
{
}
}
return(devices);
}
public static async Task TryMapPort(int port, int timeOut)
{
var natDiscoverer = new NatDiscoverer();
var cancellationTokenSource = new CancellationTokenSource(timeOut);
var devices = (await natDiscoverer.DiscoverDevicesAsync(PortMapper.Upnp, cancellationTokenSource))
.Union(await natDiscoverer.DiscoverDevicesAsync(PortMapper.Pmp, cancellationTokenSource));
foreach (var device in devices)
{
try
{
await device.CreatePortMapAsync(new Mapping(Protocol.Udp, port, port, "Dnmp auto port map"));
}
catch (MappingException mappingException)
{
if (mappingException.ErrorCode == portAlreadyInUseErrorCode)
{
continue;
}
logger.Warn(mappingException, "Exception in TryMapPort");
}
}
}
public async Task <int> ListDevicesAsync(bool includePMP)
{
var nat = new NatDiscoverer();
var cts = new CancellationTokenSource(TIMEOUT);
PortMapper param = PortMapper.Upnp;
if (includePMP)
{
param |= PortMapper.Pmp;
}
logMessageContext.Create("Getting devices");
return(await nat.DiscoverDevicesAsync(param, cts).ContinueWith(t =>
{
int result = 0;
if (t.Status != TaskStatus.Faulted)
{
using (IEnumerator <NatDevice> enumerator = t.Result.GetEnumerator())
{
while (enumerator.MoveNext())
{
logMessageContext.Create("Found device: " + enumerator.Current.ToString());
result++;
}
}
}
else
{
if (!(t.Exception.InnerException is NatDeviceNotFoundException))
{
result = -1;
logMessageContext.Create("error listing devices");
}
}
return result;
}));
}