Thank you kindly, Patnad, for a patch that:

This is to handle the changes in the v1.23 viewer 
of LL regarding the adult rating. With this patch 
a region can be changed to the adult rating from 
LL viewer v1.23 and above.

OpenSim/Data/MySQL/MySQLManager.cs

@@ -436,6 +436,7 @@ namespace OpenSim.Data.MySQL
                 // World Map Addition
                 UUID.TryParse((string)reader["regionMapTexture"], out retval.regionMapTextureID);
                 UUID.TryParse((string)reader["owner_uuid"], out retval.owner_uuid);
+                retval.maturity = Convert.ToUInt32(reader["access"]);
             }
             else
             {
@@ -976,13 +977,13 @@ namespace OpenSim.Data.MySQL
             // server for the UUID of the region's owner (master avatar). It consists of the addition of the column and value to the relevant sql,
             // as well as the related parameterization
             sql +=
-                "regionAssetSendKey, regionUserURI, regionUserRecvKey, regionUserSendKey, regionMapTexture, serverHttpPort, serverRemotingPort, owner_uuid, originUUID) VALUES ";
+                "regionAssetSendKey, regionUserURI, regionUserRecvKey, regionUserSendKey, regionMapTexture, serverHttpPort, serverRemotingPort, owner_uuid, originUUID, access) VALUES ";
 
             sql += "(?regionHandle, ?regionName, ?uuid, ?regionRecvKey, ?regionSecret, ?regionSendKey, ?regionDataURI, ";
             sql +=
                 "?serverIP, ?serverPort, ?serverURI, ?locX, ?locY, ?locZ, ?eastOverrideHandle, ?westOverrideHandle, ?southOverrideHandle, ?northOverrideHandle, ?regionAssetURI, ?regionAssetRecvKey, ";
             sql +=
-                "?regionAssetSendKey, ?regionUserURI, ?regionUserRecvKey, ?regionUserSendKey, ?regionMapTexture, ?serverHttpPort, ?serverRemotingPort, ?owner_uuid, ?originUUID)";
+                "?regionAssetSendKey, ?regionUserURI, ?regionUserRecvKey, ?regionUserSendKey, ?regionMapTexture, ?serverHttpPort, ?serverRemotingPort, ?owner_uuid, ?originUUID, ?access)";
 
             if (GRID_ONLY_UPDATE_NECESSARY_DATA)
             {
@@ -1023,6 +1024,7 @@ namespace OpenSim.Data.MySQL
             parameters["?serverRemotingPort"] = regiondata.remotingPort.ToString();
             parameters["?owner_uuid"] = regiondata.owner_uuid.ToString();
             parameters["?originUUID"] = regiondata.originUUID.ToString();
+            parameters["?access"] = regiondata.maturity.ToString();
 
             bool returnval = false;
 

OpenSim/Data/MySQL/Resources/002_GridStore.sql

@@ -0,0 +1,5 @@
+BEGIN;
+
+ALTER TABLE regions add column access integer unsigned default 1;
+
+COMMIT;

OpenSim/Data/RegionProfileData.cs

@@ -131,6 +131,11 @@ namespace OpenSim.Data
         /// </summary>
         public UUID originUUID;
 
+        /// <summary>
+        /// The Maturity rating of the region
+        /// </summary>
+        public uint maturity;
+
 
         //Data Wrappers        
         public string RegionName
@@ -279,6 +284,17 @@ namespace OpenSim.Data
             get { return originUUID; }
             set { originUUID = value; }
         }
+        public uint Maturity
+        {
+            get { return maturity; }
+            set { maturity = value; }
+        }
+
+        public byte AccessLevel
+        {
+            get { return Util.ConvertMaturityToAccessLevel(maturity); }
+        }
+
 
         public RegionInfo ToRegionInfo()
         {
@@ -295,10 +311,10 @@ namespace OpenSim.Data
             return Create(regionInfo.RegionID, regionInfo.RegionName, regionInfo.RegionLocX,
                           regionInfo.RegionLocY, regionInfo.ExternalHostName,
                           (uint) regionInfo.ExternalEndPoint.Port, regionInfo.HttpPort, regionInfo.RemotingPort,
-                          regionInfo.ServerURI);
+                          regionInfo.ServerURI, regionInfo.AccessLevel);
         }
 
-        public static RegionProfileData Create(UUID regionID, string regionName, uint locX, uint locY, string externalHostName, uint regionPort, uint httpPort, uint remotingPort, string serverUri)
+        public static RegionProfileData Create(UUID regionID, string regionName, uint locX, uint locY, string externalHostName, uint regionPort, uint httpPort, uint remotingPort, string serverUri, byte access)
         {
             RegionProfileData regionProfile;
             regionProfile = new RegionProfileData();
@@ -315,6 +331,7 @@ namespace OpenSim.Data
             regionProfile.httpServerURI = "http://" + externalHostName + ":" + httpPort + "/";
             regionProfile.UUID = regionID;
             regionProfile.regionName = regionName;
+            regionProfile.maturity = access;
             return regionProfile;
         }
     }

OpenSim/Data/RegionProfileServiceProxy.cs

@@ -65,8 +65,9 @@ namespace OpenSim.Data
                 string serverUri = (string)responseData["server_uri"];
                 UUID regionID = new UUID((string)responseData["region_UUID"]);
                 string regionName = (string)responseData["region_name"];
+                byte access = Convert.ToByte((string)responseData["access"]);
 
-                simData = RegionProfileData.Create(regionID, regionName, locX, locY, externalHostName, simPort, httpPort, remotingPort, serverUri);
+                simData = RegionProfileData.Create(regionID, regionName, locX, locY, externalHostName, simPort, httpPort, remotingPort, serverUri, access);
             }
 
             return simData;

OpenSim/Framework/RegionInfo.cs

@@ -334,6 +334,11 @@ namespace OpenSim.Framework
             get { return m_objectCapacity; }
         }
 
+        public byte AccessLevel
+        {
+            get { return (byte)Util.ConvertMaturityToAccessLevel((uint)m_regionSettings.Maturity); }
+        }
+
         public void SetEndPoint(string ipaddr, int port)
         {
             IPAddress tmpIP = IPAddress.Parse(ipaddr);
@@ -691,5 +696,6 @@ namespace OpenSim.Framework
             regionInfo.ServerURI = serverURI;
             return regionInfo;
         }
+
     }
 }

OpenSim/Framework/Util.cs

@@ -1045,5 +1045,29 @@ namespace OpenSim.Framework
 
             return guid;
         }
+
+        public static byte ConvertMaturityToAccessLevel(uint maturity)
+        {
+            byte retVal = 0;
+            switch (maturity)
+            {
+                case 0: //PG
+                    retVal = 13;
+                    break;
+                case 1: //Mature
+                    retVal = 21;
+                    break;
+                case 2: // Adult
+                    retVal = 42;
+                    break;
+            }
+
+            return retVal;
+
+        }
+
+
+
+
     }
 }

OpenSim/Grid/GridServer.Modules/GridXmlRpcModule.cs

@@ -551,6 +551,19 @@ namespace OpenSim.Grid.GridServer.Modules
             sim.httpServerURI = "http://" + sim.serverIP + ":" + sim.httpPort + "/";
 
             sim.regionName = (string)requestData["sim_name"];
+
+
+            try
+            {
+
+                sim.maturity = Convert.ToUInt32((string)requestData["maturity"]);
+            }
+            catch (KeyNotFoundException)
+            {
+                //older region not providing this key - so default to Mature
+                sim.maturity = 1; 
+            }
+
             return sim;
         }
 
@@ -725,7 +738,7 @@ namespace OpenSim.Grid.GridServer.Modules
                     simProfileBlock["y"] = aSim.regionLocY.ToString();
                     //m_log.DebugFormat("[MAP]: Sending neighbour info for {0},{1}", aSim.regionLocX, aSim.regionLocY);
                     simProfileBlock["name"] = aSim.regionName;
-                    simProfileBlock["access"] = 21;
+                    simProfileBlock["access"] = aSim.AccessLevel;
                     simProfileBlock["region-flags"] = 512;
                     simProfileBlock["water-height"] = 0;
                     simProfileBlock["agents"] = 1;
@@ -760,7 +773,7 @@ namespace OpenSim.Grid.GridServer.Modules
                             simProfileBlock["x"] = x;
                             simProfileBlock["y"] = y;
                             simProfileBlock["name"] = simProfile.regionName;
-                            simProfileBlock["access"] = 0;
+                            simProfileBlock["access"] = simProfile.AccessLevel;
                             simProfileBlock["region-flags"] = 0;
                             simProfileBlock["water-height"] = 20;
                             simProfileBlock["agents"] = 1;

OpenSim/Region/Communications/Hypergrid/HGGridServices.cs

@@ -335,7 +335,7 @@ namespace OpenSim.Region.Communications.Hypergrid
                     //                    m_log.Debug("ImgID: " + map.MapImageId);
                     map.Agents = 1;
                     map.RegionFlags = 72458694;
-                    map.Access = 13;
+                    map.Access = regInfo.AccessLevel;
                     neighbours.Add(map);
                 }
             }

OpenSim/Region/Communications/Local/LocalBackEndServices.cs

@@ -269,7 +269,7 @@ namespace OpenSim.Region.Communications.Local
                     map.MapImageId = regInfo.RegionSettings.TerrainImageID;
                     map.Agents = 1;
                     map.RegionFlags = 72458694;
-                    map.Access = 13;
+                    map.Access = regInfo.AccessLevel;
                     mapBlocks.Add(map);
                 }
             }

OpenSim/Region/Communications/OGS1/OGS1GridServices.cs

@@ -140,6 +140,8 @@ namespace OpenSim.Region.Communications.OGS1
             else
                 GridParams["master_avatar_uuid"] = regionInfo.EstateSettings.EstateOwner.ToString();
 
+            GridParams["maturity"] = regionInfo.RegionSettings.Maturity.ToString();
+
             // Package into an XMLRPC Request
             ArrayList SendParams = new ArrayList();
             SendParams.Add(GridParams);

OpenSim/Region/CoreModules/InterGrid/OpenGridProtocolModule.cs

@@ -458,7 +458,19 @@ namespace OpenSim.Region.CoreModules.InterGrid
             responseMap["region_x"] = OSD.FromInteger(reg.RegionLocX * (uint)Constants.RegionSize); // LLX
             responseMap["region_y"] = OSD.FromInteger(reg.RegionLocY * (uint)Constants.RegionSize); // LLY
             responseMap["region_id"] = OSD.FromUUID(reg.originRegionID);
-            responseMap["sim_access"] = OSD.FromString((reg.RegionSettings.Maturity == 1) ? "Mature" : "PG");
+
+            if (reg.RegionSettings.Maturity == 1)
+            {
+                responseMap["sim_access"] = OSD.FromString("Mature");
+            }
+            else if (reg.RegionSettings.Maturity == 2)
+            {
+                responseMap["sim_access"] = OSD.FromString("Adult");
+            }
+            else
+            {
+                responseMap["sim_access"] = OSD.FromString("PG");
+            }
 
             // Generate a dummy agent for the user so we can get back a CAPS path
             AgentCircuitData agentData = new AgentCircuitData();

OpenSim/Region/CoreModules/World/Estate/EstateManagementModule.cs

@@ -114,8 +114,10 @@ namespace OpenSim.Region.CoreModules.World.Estate
 
             if (matureLevel <= 13)
                 m_scene.RegionInfo.RegionSettings.Maturity = 0;
-            else
+            else if (matureLevel <= 21)
                 m_scene.RegionInfo.RegionSettings.Maturity = 1;
+            else
+                m_scene.RegionInfo.RegionSettings.Maturity = 2;
 
             if (restrictPushObject)
                 m_scene.RegionInfo.RegionSettings.RestrictPushing = true;
@@ -580,11 +582,7 @@ namespace OpenSim.Region.CoreModules.World.Estate
            args.redirectGridX = m_scene.RegionInfo.EstateSettings.RedirectGridX;
            args.redirectGridY = m_scene.RegionInfo.EstateSettings.RedirectGridY;
            args.regionFlags = GetRegionFlags();
-           byte mature = 13;
+           args.simAccess = m_scene.RegionInfo.AccessLevel;
-           if (m_scene.RegionInfo.RegionSettings.Maturity == 1)
-              mature = 21;
-           args.simAccess = mature;
-
            args.sunHour = (float)m_scene.RegionInfo.RegionSettings.SunPosition;
            args.terrainLowerLimit = (float)m_scene.RegionInfo.RegionSettings.TerrainLowerLimit;
            args.terrainRaiseLimit = (float)m_scene.RegionInfo.RegionSettings.TerrainRaiseLimit;
@@ -730,12 +728,8 @@ namespace OpenSim.Region.CoreModules.World.Estate
             args.terrainHeightRange2 = (float)m_scene.RegionInfo.RegionSettings.Elevation2SE;
             args.terrainStartHeight3 = (float)m_scene.RegionInfo.RegionSettings.Elevation1NE;
             args.terrainHeightRange3 = (float)m_scene.RegionInfo.RegionSettings.Elevation2NE;
-            byte mature = 13;
+            args.simAccess = m_scene.RegionInfo.AccessLevel;
-            if (m_scene.RegionInfo.RegionSettings.Maturity == 1)
-                mature = 21;
-            args.simAccess = mature;
             args.waterHeight = (float)m_scene.RegionInfo.RegionSettings.WaterHeight;
-
             args.regionFlags = GetRegionFlags();
             args.regionName = m_scene.RegionInfo.RegionName;
             if (m_scene.RegionInfo.EstateSettings.EstateOwner != UUID.Zero)

OpenSim/Region/CoreModules/World/WorldMap/MapSearchModule.cs

@@ -126,7 +126,7 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
                 {
                     data = new MapBlockData();
                     data.Agents = 0;
-                    data.Access = 21; // TODO what's this?
+                    data.Access = info.AccessLevel;
                     data.MapImageId = info.RegionSettings.TerrainImageID;
                     data.Name = info.RegionName;
                     data.RegionFlags = 0; // TODO not used?

OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs

@@ -7995,6 +7995,8 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             reply = "PG";
                         else if (access == 1)
                             reply = "MATURE";
+                        else if (access == 2)
+                            reply = "ADULT";
                         else
                             reply = "UNKNOWN";
                         break;