On login and first HG entrance to a foreign grid, perform query access checks before proceeding.

OpenSim/Region/CoreModules/ServiceConnectorsOut/Simulation/LocalSimulationConnector.cs

@@ -283,6 +283,8 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
 //                        s.RegionInfo.RegionName, destination.RegionHandle);
                 uint size = m_scenes[destination.RegionID].RegionInfo.RegionSizeX;
 
+                if (theirversion != null)
+                {
                     float theirVersionNumber = 0f;
                     string[] versionComponents = theirversion.Split(new char[] { '/' });
                     if (versionComponents.Length >= 2)
@@ -295,6 +297,8 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Simulation
                         reason = "Destination is a variable-sized region, and source is an old simulator. Consider upgrading.";
                         m_log.DebugFormat("[LOCAL SIMULATION CONNECTOR]: Request to access this variable-sized region from {0} simulator was denied", theirVersionNumber);
                         return false;
+                    
+                    }
                 }
 
                 return m_scenes[destination.RegionID].QueryAccess(agentID, agentHomeURI, viaTeleport, position, out reason);

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -5514,6 +5514,7 @@ namespace OpenSim.Region.Framework.Scenes
 
             int num = m_sceneGraph.GetRootAgentCount();
 
+            Console.WriteLine("{0} {1}", num, RegionInfo.RegionSettings.AgentLimit);
             if (num >= RegionInfo.RegionSettings.AgentLimit)
             {
                 if (!Permissions.IsAdministrator(agentID))

OpenSim/Services/HypergridService/GatekeeperService.cs

@@ -432,6 +432,13 @@ namespace OpenSim.Services.HypergridService
 
             m_log.DebugFormat("[GATEKEEPER SERVICE]: Launching {0}, Teleport Flags: {1}", aCircuit.Name, loginFlag);
 
+            string version;
+
+            if (!m_SimulationService.QueryAccess(
+                destination, aCircuit.AgentID, aCircuit.ServiceURLs["HomeURI"].ToString(), 
+                true, aCircuit.startpos, null, out version, out reason))
+                return false;
+
             return m_SimulationService.CreateAgent(source, destination, aCircuit, (uint)loginFlag, out reason);
         }
 

OpenSim/Services/Interfaces/ISimulationService.cs

@@ -85,8 +85,10 @@ namespace OpenSim.Services.Interfaces
         /// <param name="agentHomeURI">The visitor's Home URI. Will be missing (null) in older OpenSims.</param>
         /// <param name="viaTeleport">True: via teleport; False: via cross (walking)</param>
         /// <param name="position">Position in the region</param>
-        /// <param name="sversion">version that the requesting simulator is runing</param>
+        /// <param name="sversion">
-        /// <param name="version">version that the target simulator is running</param>
+        /// Version that the requesting simulator is runing.  If null then no version check is carried out.
+        /// </param>
+        /// <param name="version">Version that the target simulator is running</param>
         /// <param name="reason">[out] Optional error message</param>
         /// <returns>True: ok; False: not allowed</returns>
         bool QueryAccess(GridRegion destination, UUID agentID, string agentHomeURI, bool viaTeleport, Vector3 position, string sversion, out string version, out string reason);

OpenSim/Services/LLLoginService/LLLoginService.cs

@@ -959,12 +959,19 @@ namespace OpenSim.Services.LLLoginService
 
         private bool LaunchAgentDirectly(ISimulationService simConnector, GridRegion region, AgentCircuitData aCircuit, TeleportFlags flags, out string reason)
         {
+            string version;
+
+            if (!simConnector.QueryAccess(region, aCircuit.AgentID, null, true, aCircuit.startpos, null, out version, out reason))
+                return false;
+
             return simConnector.CreateAgent(null, region, aCircuit, (uint)flags, out reason);
         }
 
         private bool LaunchAgentIndirectly(GridRegion gatekeeper, GridRegion destination, AgentCircuitData aCircuit, IPEndPoint clientIP, out string reason)
         {
-            m_log.Debug("[LLOGIN SERVICE] Launching agent at " + destination.RegionName);
+            string version;
+
+            m_log.Debug("[LLOGIN SERVICE]: Launching agent at " + destination.RegionName);
             if (m_UserAgentService.LoginAgentToGrid(null, aCircuit, gatekeeper, destination, true, out reason))
                 return true;
             return false;