* Apply a modified version of the part of http://opensimulator.org/mantis/view.php?id=2361 that allows region registration to be enabled/disabled on the grid server

* Region registration is enabled by default in the configuration unless the user chooses otherwise
* On the console
* show status - shows grid status
* enable-reg - enables region registration to the grid
* disable-reg - disables region registration

* Enabling or disabling region registration will not affect any other grid functions or regions already on the grid

OpenSim/Framework/EstateSettings.cs

@@ -290,7 +290,7 @@ namespace OpenSim.Framework
                     l_EstateManagers.Clear();
                     configMember.performConfigurationRetrieve();
                 }
-                catch (Exception e)
+                catch (Exception)
                 {
                 }
             }

OpenSim/Framework/GridConfig.cs

@@ -34,6 +34,7 @@ namespace OpenSim.Framework
         public static uint DefaultHttpPort = 8001;
 
         public string AllowForcefulBanlines = "TRUE";
+        public bool AllowRegionRegistration = true;
         public string AssetRecvKey = String.Empty;
         public string AssetSendKey = String.Empty;
 
@@ -91,6 +92,12 @@ namespace OpenSim.Framework
             configMember.addConfigurationOption("allow_forceful_banlines",
                                                 ConfigurationOption.ConfigurationTypes.TYPE_STRING,
                                                 "Allow Forceful Banlines", "TRUE", true);   
+            
+            configMember.addConfigurationOption("allow_region_registration", 
+                                                ConfigurationOption.ConfigurationTypes.TYPE_BOOLEAN,
+                                                "Allow regions to register immediately upon grid server startup? true/false", 
+                                                "True", 
+                                                false);            
         }
 
         public bool handleIncomingConfiguration(string configuration_key, object configuration_result)
@@ -133,6 +140,9 @@ namespace OpenSim.Framework
                 case "allow_forceful_banlines":
                     AllowForcefulBanlines = (string) configuration_result;
                     break;
+                case "allow_region_registration":
+                    AllowRegionRegistration = (bool)configuration_result;
+                    break;                
             }
 
             return true;

OpenSim/Framework/PacketPool.cs

@@ -36,7 +36,7 @@ namespace OpenSim.Framework
     {
         private static readonly PacketPool instance = new PacketPool();
 
-        private const bool packetPoolEnabled = false;
+        private bool packetPoolEnabled = false;
 
         private readonly Dictionary<PacketType, Stack<Packet>> pool = new Dictionary<PacketType, Stack<Packet>>();
 

OpenSim/Framework/RegionSettings.cs

@@ -50,7 +50,7 @@ namespace OpenSim.Framework
                     configMember = new ConfigurationMember(Path.Combine(Util.configDir(), "estate_settings.xml"), "ESTATE SETTINGS", LoadConfigurationOptions, HandleIncomingConfiguration, true);
                     configMember.performConfigurationRetrieve();
                 }
-                catch (Exception e)
+                catch (Exception)
                 {
                 }
             }

OpenSim/Grid/GridServer/GridManager.cs

@@ -378,6 +378,15 @@ namespace OpenSim.Grid.GridServer
                 return ErrorResponse("Wrong format in login parameters. Please verify parameters." + e.ToString());
             }
                      
+            if (!Config.AllowRegionRegistration)
+            {
+                m_log.InfoFormat(
+                    "[LOGIN END]: Disabled region registration blocked login request from simulator: {0}", 
+                    sim.regionName);
+                
+                return ErrorResponse("The grid is currently not accepting region registrations.");
+            }            
+
             m_log.InfoFormat("[LOGIN BEGIN]: Received login request from simulator: {0}", sim.regionName);
 
             existingSim = GetRegion(sim.regionHandle);
@@ -1206,6 +1215,20 @@ namespace OpenSim.Grid.GridServer
             }
             return response;
         }
+        
+        /// <summary>
+        /// Construct an XMLRPC registration disabled response
+        /// </summary>
+        /// <param name="error"></param>
+        /// <returns></returns>
+        public static XmlRpcResponse XmlRPCRegionRegistrationDisabledResponse(string error)
+        {
+            XmlRpcResponse errorResponse = new XmlRpcResponse();
+            Hashtable errorResponseData = new Hashtable();
+            errorResponse.Value = errorResponseData;
+            errorResponseData["restricted"] = error;
+            return errorResponse;
+        }        
     }
 
     /// <summary>

OpenSim/Grid/GridServer/GridServerBase.cs

@@ -63,16 +63,43 @@ namespace OpenSim.Grid.GridServer
             MainConsole.Instance = m_console;
         }
 
-        public void managercallback(string cmd)
+        public override void RunCmd(string cmd, string[] cmdparams)
         {
+            base.RunCmd(cmd, cmdparams);   
+            
             switch (cmd)
             {
-                case "shutdown":
+                case "disable-reg":
-                    RunCmd("shutdown", new string[0]);
+                    m_config.AllowRegionRegistration = false;
+                    m_log.Info("Region registration disabled");
+                    break;                
+                case "enable-reg":
+                    m_config.AllowRegionRegistration = true;
+                    m_log.Info("Region registration enabled");
                     break;      
             }
         }
         
+        public override void Show(string[] showParams)
+        {
+            base.Show(showParams);
+
+            switch (showParams[0])
+            {
+                case "status":
+                    if (m_config.AllowRegionRegistration)
+                    {
+                        m_log.Info("Region registration enabled.");
+                    }
+                    else
+                    {              
+                        m_log.Info("Region registration disabled.");
+                    }
+                    break;
+            }
+        }
+  
+
         protected override void StartupSpecific()
         {
             m_config = new GridConfig("GRID SERVER", (Path.Combine(Util.configDir(), "GridServer_Config.xml")));