Implemented very-primitive NAT support, though enabling it will break support for LAN-clients -- which will be fixed in the future with a proper NAT implementation similar to pvpgn.

Added WARNING file, make sure you read this before start using the software (got the text from Mangos, as their conditions are quite alike).
Added license text to source-files that we're missing them.
Added CHANGELOG, CREDITS placeholder files.

Author: raistlinthewiz

CHANGELOG

@@ -0,0 +1 @@
+changelog placeholder

CREDITS

@@ -0,0 +1 @@
+credits placeholder

WARNING

@@ -0,0 +1,11 @@
+D3Sharp has been built with education as the main purpose and 
+the we would like to keep it as is.
+
+Since any public and/or commercial use of this software is considered illegal
+in many countries (please refer to your local law), the D3Sharp team
+will not provide any help nor support with such usage in any way.
+Every user of this software is encouraged to make sure no law is being broken
+on his/her side.
+
+D3Sharp team will not take any responsibility for any kind of usage of this 
+software by the end users.

source/D3Sharp/Core/Games/Game.cs

@@ -57,7 +57,7 @@ public void ListenForGame(BNetClient client)
             // We should actually find the server's public-interface and use that
             var connectionInfo =
                 bnet.protocol.game_master.ConnectInfo.CreateBuilder().SetToonId(client.CurrentToon.BnetEntityID).SetHost
-                    (client.Connection.LocalEndPoint.Address.ToString()).SetPort(Net.Game.Config.Instance.Port).SetToken(ByteString.CopyFrom(new byte[] {0x07, 0x34, 0x02, 0x60, 0x91, 0x93, 0x76, 0x46, 0x28, 0x84}))
+                    (Net.Utils.GetGameServerIPForClient(client)).SetPort(Net.Game.Config.Instance.Port).SetToken(ByteString.CopyFrom(new byte[] {0x07, 0x34, 0x02, 0x60, 0x91, 0x93, 0x76, 0x46, 0x28, 0x84}))
                     .AddAttribute(bnet.protocol.attribute.Attribute.CreateBuilder().SetName("SGameId").SetValue(bnet.protocol.attribute.Variant.CreateBuilder().SetIntValue((long)this.DynamicId).Build())).Build();
 
             var builder = bnet.protocol.game_master.GameFoundNotification.CreateBuilder();

source/D3Sharp/D3Sharp.csproj

@@ -133,6 +133,8 @@
     <Compile Include="Net\Game\GameServer.cs" />
     <Compile Include="Net\Game\IGameClient.cs" />
     <Compile Include="Net\IClient.cs" />
+    <Compile Include="Net\NATConfig.cs" />
+    <Compile Include="Net\Utils.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Net\Connection.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -295,4 +297,7 @@
       <Name>Gibbed.Helpers</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Net\NAT\" />
+  </ItemGroup>
 </Project>

source/D3Sharp/Net/BNet/Config.cs

@@ -20,7 +20,7 @@ namespace D3Sharp.Net.BNet
 {
     public sealed class Config: Core.Config.Config
     {
-        public string BindIP { get { return this.GetString("BindIP", "0.0.0.0"); } set { this.Set("Port", value); } }
+        public string BindIP { get { return this.GetString("BindIP", "0.0.0.0"); } set { this.Set("BindIP", value); } }
         public int Port { get { return this.GetInt("Port", 1345); } set { this.Set("Port", value); } }
 
         private static readonly Config _instance = new Config();

source/D3Sharp/Net/Game/GameAttribute.cs

@@ -1,4 +1,22 @@
-using System;
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

source/D3Sharp/Net/Game/GameBitBuffer.cs

@@ -1,4 +1,22 @@
-using System;
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

source/D3Sharp/Net/Game/GameClient.cs

@@ -15,6 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
 using System;
 using System.IO;
 using System.Linq;

source/D3Sharp/Net/Game/GameMessage.cs

@@ -1,4 +1,22 @@
-using System;
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

source/D3Sharp/Net/Game/GameMessageTypes.cs

@@ -1,4 +1,22 @@
-using System;
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
 using System.Text;
 
 namespace D3Sharp.Net.Game

source/D3Sharp/Net/IClient.cs

@@ -1,4 +1,22 @@
-using System;
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;

source/D3Sharp/Net/NATConfig.cs

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+namespace D3Sharp.Net
+{
+    public sealed class NATConfig: Core.Config.Config
+    {
+        public bool Enabled { get { return this.GetBoolean("Enabled", true); } set { this.Set("Enabled", value); } }
+        public string PublicIP { get { return this.GetString("PublicIP", "0.0.0.0"); } set { this.Set("PublicIP", value); } }
+
+        private static readonly NATConfig _instance = new NATConfig();
+        public static NATConfig Instance { get { return _instance; } }
+        private NATConfig() : base("NAT") { }
+    }
+}

source/D3Sharp/Net/Utils.cs

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2011 D3Sharp Project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Net.NetworkInformation;
+using System.Text;
+using D3Sharp.Net.BNet;
+
+namespace D3Sharp.Net
+{
+    public static class Utils
+    {
+        public static readonly IPAddress LocalHost = IPAddress.Parse("127.0.0.1");
+
+        public static string GetGameServerIPForClient(BNetClient client)
+        {
+            if (!NATConfig.Instance.Enabled) // if NAT is not enabled, just return bnetclient's localendpoint address.
+                return client.Connection.LocalEndPoint.Address.ToString();
+            else
+            {
+                return client.Connection.LocalEndPoint.Address.ToString() == "127.0.0.1"
+                           ? client.Connection.LocalEndPoint.ToString()
+                           : NATConfig.Instance.PublicIP; // if client is not connected over localhost, send him public-ip.
+
+                // Known problems: If user enables NAT, LAN-clients (and even local-computer if d3 is configured to use lan-ip) will not able to connect in gs.
+                // That needs a full implementation similar to pvpgn where we currently pretty miss the time for /raist.
+            }
+        }       
+    }
+}

source/D3Sharp/config.ini

@@ -1,12 +1,15 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;
-; D3Sharp Configuration File - Usage Placeholder
-;
-; Replace IPs with your external IP if you want to be able to access D3Sharp remotely
-;
+;                                                                                                                 ;
+; D3Sharp Configuration File                                                                                      ;
+;                                                                                                                 ;
+;-----------------------------------------------------------------------------------------------------------------;
+;                                                                                                                 ;
+; This file is an example configuration and may require modification to suit your needs.                          ;
+;                                                                                                                 ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
-; Paths and such
+
+; Persistent storage settings
 [Storage]
 AssetsRoot=.
 
@@ -21,3 +24,12 @@ BindIP = 0.0.0.0
 Port = 1999
 Map = Assets/Maps/001.txt
 
+; Network address translation settings
+; You only need to change this if you're running behind a dsl router or so.
+; Important: If you enable NAT, LAN-clients will not able to connect in gs. 
+; (Will be fixed later with a proper implementation similar to one in pvpgn).
+[NAT]
+Enabled = false
+PublicIP = 0.0.0.0 ; You need to change this to your router's public interface IP if you'd like to use NAT.
+
+