120 lines
3.7 KiB
C#
120 lines
3.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using Mono.Nat;
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namespace OpenRA.Network
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{
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public static class UPnP
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{
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public static INatDevice NatDevice;
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public static void TryNatDiscovery()
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{
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try
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{
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NatUtility.Logger = Log.Channels["server"].Writer;
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NatUtility.Verbose = Game.Settings.Server.VerboseNatDiscovery;
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NatUtility.DeviceFound += DeviceFound;
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Game.Settings.Server.NatDeviceAvailable = false;
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NatUtility.StartDiscovery();
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Log.Write("server", "NAT discovery started.");
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}
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catch (Exception e)
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{
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Log.Write("server", "Can't discover UPnP-enabled device: {0}", e);
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Game.Settings.Server.NatDeviceAvailable = false;
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Game.Settings.Server.AllowPortForward = false;
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}
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}
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public static void StoppingNatDiscovery()
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{
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Log.Write("server", "Stopping NAT discovery.");
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NatUtility.StopDiscovery();
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if (NatDevice == null || NatDevice.GetType() != typeof(Mono.Nat.Upnp.UpnpNatDevice))
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{
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Log.Write("server",
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"No NAT devices with UPnP enabled found within {0} ms deadline. Disabling automatic port forwarding.".F(Game.Settings.Server.NatDiscoveryTimeout));
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Game.Settings.Server.NatDeviceAvailable = false;
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Game.Settings.Server.AllowPortForward = false;
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}
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}
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public static void DeviceFound(object sender, DeviceEventArgs args)
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{
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Log.Write("server", "NAT device discovered.");
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Game.Settings.Server.NatDeviceAvailable = true;
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Game.Settings.Server.AllowPortForward = true;
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try
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{
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NatDevice = args.Device;
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Log.Write("server", "Type: {0}", NatDevice.GetType());
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Log.Write("server", "Your external IP is: {0}", NatDevice.GetExternalIP());
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foreach (var mp in NatDevice.GetAllMappings())
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Log.Write("server", "Existing port mapping: protocol={0}, public={1}, private={2}",
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mp.Protocol, mp.PublicPort, mp.PrivatePort);
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}
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catch (Exception e)
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{
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Log.Write("server", "Can't fetch information from NAT device: {0}", e);
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Game.Settings.Server.NatDeviceAvailable = false;
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Game.Settings.Server.AllowPortForward = false;
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}
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}
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public static void ForwardPort(int lifetime)
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{
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try
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{
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var mapping = new Mapping(Protocol.Tcp, Game.Settings.Server.ExternalPort, Game.Settings.Server.ListenPort, lifetime);
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NatDevice.CreatePortMap(mapping);
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Log.Write("server", "Create port mapping: protocol = {0}, public = {1}, private = {2}, lifetime = {3} s",
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mapping.Protocol, mapping.PublicPort, mapping.PrivatePort, mapping.Lifetime);
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}
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catch (MappingException e)
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{
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if (e.ErrorCode == 725 && lifetime != 0)
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{
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Log.Write("server", "NAT device answered with OnlyPermanentLeasesSupported. Retrying...");
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ForwardPort(0);
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}
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else
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{
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Log.Write("server", "Can not forward ports via UPnP: {0}", e);
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Game.Settings.Server.AllowPortForward = false;
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}
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}
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}
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public static void RemovePortforward()
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{
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try
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{
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var mapping = new Mapping(Protocol.Tcp, Game.Settings.Server.ExternalPort, Game.Settings.Server.ListenPort);
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NatDevice.DeletePortMap(mapping);
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Log.Write("server", "Remove port mapping: protocol = {0}, public = {1}, private = {2}, expiration = {3}",
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mapping.Protocol, mapping.PublicPort, mapping.PrivatePort, mapping.Expiration);
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}
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catch (Exception e)
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{
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Log.Write("server", "Can not remove UPnP portforwarding rules: {0}", e);
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Game.Settings.Server.AllowPortForward = false;
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}
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}
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}
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} |