private static void HanleSetRequestWithDataBlock(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXDLMSLNParameters p, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { GXDataInfo reply = new GXDataInfo(); p.multipleBlocks = data.GetUInt8() == 0; UInt32 blockNumber = data.GetUInt32(); if (blockNumber != settings.BlockIndex) { Debug.WriteLine("HanleSetRequestWithDataBlock failed. Invalid block number. " + settings.BlockIndex + "/" + blockNumber); p.status = (byte)ErrorCode.DataBlockNumberInvalid; } else { int size = GXCommon.GetObjectCount(data); int realSize = data.Size - data.Position; if (size != realSize) { Debug.WriteLine("HanleSetRequestWithDataBlock failed. Invalid block size."); p.status = (byte)ErrorCode.DataBlockUnavailable; } server.transaction.data.Set(data); //If all data is received. if (!p.multipleBlocks) { try { object value = GXCommon.GetData(settings, server.transaction.data, reply); if (value is byte[]) { DataType dt = (server.transaction.targets[0].Target as IGXDLMSBase).GetDataType(server.transaction.targets[0].Index); if (dt != DataType.None && dt != DataType.OctetString) { value = GXDLMSClient.ChangeType((byte[])value, dt, settings.UseUtc2NormalTime); } } server.transaction.targets[0].Value = value; server.NotifyWrite(server.transaction.targets); if (!server.transaction.targets[0].Handled && !p.multipleBlocks) { (server.transaction.targets[0].Target as IGXDLMSBase).SetValue(settings, server.transaction.targets[0]); server.NotifyPostWrite(server.transaction.targets); } } catch (Exception) { p.status = (byte)ErrorCode.HardwareFault; } finally { server.transaction = null; } settings.ResetBlockIndex(); } } p.multipleBlocks = true; }
///<summary> /// Handle Event Notification. ///</summary> internal static void HandleEventNotification(GXDLMSSettings settings, GXReplyData reply, List <KeyValuePair <GXDLMSObject, int> > list) { reply.Time = DateTime.MinValue; int len = reply.Data.GetUInt8(); byte[] tmp = null; // If date time is given. if (len != 0) { tmp = new byte[len]; reply.Data.Get(tmp); reply.Time = (GXDateTime)GXDLMSClient.ChangeType(tmp, DataType.DateTime, settings.UseUtc2NormalTime); } if (reply.Xml != null) { reply.Xml.AppendStartTag(Command.EventNotification); if (reply.Time != DateTime.MinValue) { reply.Xml.AppendComment(Convert.ToString(reply.Time)); reply.Xml.AppendLine(TranslatorTags.Time, null, GXCommon.ToHex(tmp, false)); } } int ci = reply.Data.GetUInt16(); byte[] ln = new byte[6]; reply.Data.Get(ln); byte index = reply.Data.GetUInt8(); if (reply.Xml != null) { AppendAttributeDescriptor(reply.Xml, ci, ln, index); reply.Xml.AppendStartTag(TranslatorTags.AttributeValue); } GXDataInfo di = new GXDataInfo(); di.xml = reply.Xml; object value = GXCommon.GetData(settings, reply.Data, di); if (reply.Xml != null) { reply.Xml.AppendEndTag(TranslatorTags.AttributeValue); reply.Xml.AppendEndTag(Command.EventNotification); } else { GXDLMSObject obj = settings.Objects.FindByLN((ObjectType)ci, GXCommon.ToLogicalName(ln)); if (obj != null) { ValueEventArgs v = new ValueEventArgs(obj, index, 0, null); v.Value = value; (obj as IGXDLMSBase).SetValue(settings, v); list.Add(new KeyValuePair <GXDLMSObject, int>(obj, index)); } } }
///<summary> /// Handle action request. ///</summary> ///<param name="Reply"> /// Received data from the client. ///</param> ///<returns> ///Reply. ///</returns> private byte[][] HandleMethodRequest() { GXByteBuffer data = Reply.Data; GXByteBuffer bb = new GXByteBuffer(); // Get type. data.GetUInt8(); // Get invoke ID and priority. data.GetUInt8(); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id int id = data.GetUInt8(); // Get parameters. object parameters = null; if (data.GetUInt8() != 0) { GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(data, info); } GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // Device reports a undefined object. addError(ErrorCode.UndefinedObject, bb); Debug.WriteLine("Undefined object."); } else { ValueEventArgs e = new ValueEventArgs(obj, id, 0, parameters); Action(e); if (e.Handled) { bb.Add((obj as IGXDLMSBase).Invoke(Settings, id, parameters)); } else { bb.Add((obj as IGXDLMSBase).Invoke(Settings, id, parameters)); } } return(GXDLMS.SplitPdu(Settings, Command.MethodResponse, 1, bb, ErrorCode.Ok, DateTime.MinValue)[0]); }
byte[] GetProfileGenericData(int selector, object parameters) { //If all data is read. if (selector == 0 || parameters == null) { return(GetData(Buffer)); } object[] arr = (object[])parameters; List <object[]> table = new List <object[]>(); lock (Buffer) { if (selector == 1) //Read by range { GXDataInfo info = new GXDataInfo(); info.Type = DataType.DateTime; DateTime start = ((GXDateTime)GXCommon.GetData(new GXByteBuffer((byte[])arr[1]), info)).Value.LocalDateTime; info.Clear(); info.Type = DataType.DateTime; DateTime end = ((GXDateTime)GXCommon.GetData(new GXByteBuffer((byte[])arr[2]), info)).Value.LocalDateTime; foreach (object[] row in Buffer) { DateTime tm = Convert.ToDateTime(row[0]); if (tm >= start && tm <= end) { table.Add(row); } } } else if (selector == 2)//Read by entry. { int start = Convert.ToInt32(arr[0]); int count = Convert.ToInt32(arr[1]); for (int pos = 0; pos < count; ++pos) { if (pos + start == Buffer.Count) { break; } table.Add(Buffer[start + pos]); } } else { throw new Exception("Invalid selector."); } } return(GetData(table)); }
byte[] GetProfileGenericData(int selector, object parameters) { //If all data is read. if (selector == 0 || parameters == null) { return(GetData(Buffer)); } object[] arr = (object[])parameters; List <object[]> table = new List <object[]>(); lock (Buffer) { if (selector == 1) //Read by range { DataType dt = DataType.DateTime; int a, b, c = 0, pos = 0; GXDateTime start = (GXDateTime)GXCommon.GetData((byte[])arr[1], ref pos, ActionType.None, out a, out b, ref dt, ref c); c = pos = 0; GXDateTime end = (GXDateTime)GXCommon.GetData((byte[])arr[2], ref pos, ActionType.None, out a, out b, ref dt, ref c); foreach (object[] row in Buffer) { DateTime tm = Convert.ToDateTime(row[0]); if (tm >= start.Value && tm <= end.Value) { table.Add(row); } } } else if (selector == 2)//Read by entry. { int start = Convert.ToInt32(arr[0]); int count = Convert.ToInt32(arr[1]); for (int pos = 0; pos < count; ++pos) { if (pos + start == Buffer.Count) { break; } table.Add(Buffer[start + pos]); } } else { throw new Exception("Invalid selector."); } } return(GetData(table)); }
private static void UpdateTemplateDescription(GXByteBuffer columns, GXByteBuffer data, int index) { DataType ch = (DataType)data.GetUInt8(); int count = GXCommon.GetObjectCount(data); if (index == -1) { columns.SetUInt8(ch); if (ch == DataType.Array) { columns.SetUInt16((UInt16)count); } else { columns.SetUInt8((byte)count); } } GXDataInfo info = new GXDataInfo(); for (int pos = 0; pos < count; ++pos) { //If all data is captured. if (index == -1 || pos == index) { DataType dt = (DataType)data.GetUInt8(data.Position); if (dt == DataType.Array || dt == DataType.Structure) { UpdateTemplateDescription(columns, data, -1); if (ch == DataType.Array) { break; } } else { info.Clear(); columns.SetUInt8((byte)dt); //Get data. GXCommon.GetData(null, data, info); } if (index == pos) { break; } } } }
/// <summary> /// Convert compact data buffer to array of values. /// </summary> /// <param name="templateDescription">Template description byte array.</param> /// <param name="buffer">Buffer byte array.</param> /// <returns>Values from byte buffer.</returns> public List <object> GetValues(byte[] templateDescription, byte[] buffer) { //If templateDescription or buffer is not given. if (templateDescription == null || buffer == null || templateDescription.Length == 0 || buffer.Length == 0) { throw new ArgumentException(); } GXDataInfo info = new GXDataInfo(); object tmp; GXByteBuffer data = new GXByteBuffer(); data.Set(templateDescription); GXCommon.SetObjectCount(buffer.Length, data); data.Set(buffer); info.Type = DataType.CompactArray; tmp = GXCommon.GetData(null, data, info); return((List <object>)tmp); }
private static void CaptureValue(GXDLMSServer server, GXByteBuffer tmp, GXByteBuffer bb) { GXByteBuffer tmp2 = new GXByteBuffer(); GXDataInfo info = new GXDataInfo(); object value = GXCommon.GetData(server.Settings, tmp, info); GXCommon.SetData(server.Settings, tmp2, info.Type, value); //If data is empty. if (tmp2.Size == 1) { bb.SetUInt8(0); } else { tmp2.Position = 1; bb.Set(tmp2); } }
private static void HandleRead(GXDLMSSettings settings, GXDLMSServer server, byte type, GXByteBuffer data, List <ValueEventArgs> list, List <ValueEventArgs> reads, List <ValueEventArgs> actions, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { int sn = data.GetInt16(); if (xml != null) { if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendStartTag( TranslatorTags.VariableAccessSpecification); } else { sn &= 0xFFFF; } if (type == (byte)VariableAccessSpecification.ParameterisedAccess) { xml.AppendStartTag(Command.ReadRequest, VariableAccessSpecification.ParameterisedAccess); xml.AppendLine( (int)Command.ReadRequest << 8 | (int)VariableAccessSpecification.VariableName, "Value", xml.IntegerToHex(sn, 4)); xml.AppendLine(TranslatorTags.Selector, "Value", xml.IntegerToHex(data.GetUInt8(), 2)); GXDataInfo di = new GXDataInfo(); di.xml = xml; xml.AppendStartTag(TranslatorTags.Parameter); GXCommon.GetData(settings, data, di); xml.AppendEndTag(TranslatorTags.Parameter); xml.AppendEndTag(Command.ReadRequest, VariableAccessSpecification.ParameterisedAccess); } else { xml.AppendLine( (int)Command.ReadRequest << 8 | (int)VariableAccessSpecification.VariableName, "Value", xml.IntegerToHex(sn, 4)); } if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendEndTag(TranslatorTags.VariableAccessSpecification); } return; } GXSNInfo info = FindSNObject(server, sn & 0xFFFF); ValueEventArgs e = new ValueEventArgs(server, info.Item, info.Index, 0, null); e.action = info.IsAction; if (type == (byte)VariableAccessSpecification.ParameterisedAccess) { e.Selector = data.GetUInt8(); GXDataInfo di = new GXDataInfo(); e.Parameters = GXCommon.GetData(settings, data, di); } //Return error if connection is not established. if (!settings.Connected && (!e.action || e.Target.ShortName != 0xFA00 || e.Index != 8)) { replyData.Add(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } if (e.Target is GXDLMSProfileGeneric && info.Index == 2) { e.RowToPdu = GXDLMS.RowsToPdu(settings, (GXDLMSProfileGeneric)e.Target); } list.Add(e); if (!e.action && server.NotifyGetAttributeAccess(e) == AccessMode.NoAccess) { e.Error = ErrorCode.ReadWriteDenied; } else if (e.action && server.NotifyGetMethodAccess(e) == MethodAccessMode.NoAccess) { e.Error = ErrorCode.ReadWriteDenied; } else { if (e.action) { actions.Add(e); } else { reads.Add(e); } } }
///<summary> /// Handle write request. ///</summary> public static void HandleWriteRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { //Return error if connection is not established. if (xml == null && !settings.Connected) { replyData.Add(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } short type; object value; // Get object count. List <GXSNInfo> targets = new List <GXSNInfo>(); int cnt = GXCommon.GetObjectCount(data); if (xml != null) { xml.AppendStartTag(Command.WriteRequest); xml.AppendStartTag( TranslatorTags.ListOfVariableAccessSpecification, "Qty", xml.IntegerToHex(cnt, 2)); if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendStartTag( TranslatorTags.VariableAccessSpecification); } } GXByteBuffer results = new GXByteBuffer((ushort)cnt); for (int pos = 0; pos != cnt; ++pos) { type = data.GetUInt8(); if (type == (byte)VariableAccessSpecification.VariableName) { int sn = data.GetUInt16(); if (xml != null) { xml.AppendLine( (int)Command.WriteRequest << 8 | (int)VariableAccessSpecification.VariableName, "Value", xml.IntegerToHex(sn, 4)); } else { GXSNInfo info = FindSNObject(server, sn); targets.Add(info); // If target is unknown. if (info == null) { // Device reports a undefined object. results.SetUInt8(ErrorCode.UndefinedObject); } else { results.SetUInt8(ErrorCode.Ok); } } } else if (type == (byte)VariableAccessSpecification.WriteDataBlockAccess) { HandleReadDataBlockAccess(settings, server, Command.WriteResponse, data, cnt, replyData, xml); if (xml == null) { return; } } else { // Device reports a HW error. results.SetUInt8(ErrorCode.HardwareFault); } } if (xml != null) { if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendEndTag(TranslatorTags.VariableAccessSpecification); } xml.AppendEndTag( TranslatorTags.ListOfVariableAccessSpecification); } // Get data count. cnt = GXCommon.GetObjectCount(data); GXDataInfo di = new GXDataInfo(); di.xml = xml; if (xml != null) { xml.AppendStartTag(TranslatorTags.ListOfData, "Qty", xml.IntegerToHex(cnt, 2)); } for (int pos = 0; pos != cnt; ++pos) { di.Clear(); if (xml != null) { if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendStartTag(Command.WriteRequest, SingleReadResponse.Data); } value = GXCommon.GetData(settings, data, di); if (!di.Complete) { value = GXCommon.ToHex(data.Data, false, data.Position, data.Size - data.Position); xml.AppendLine( GXDLMS.DATA_TYPE_OFFSET + (int)di.Type, "Value", value.ToString()); } if (xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendEndTag(Command.WriteRequest, SingleReadResponse.Data); } GXCommon.GetData(settings, data, di); } else if (results.GetUInt8(pos) == 0) { // If object has found. GXSNInfo target = targets[pos]; value = GXCommon.GetData(settings, data, di); if (value is byte[]) { DataType dt = target.Item.GetDataType(target.Index); if (dt != DataType.None && dt != DataType.OctetString) { value = GXDLMSClient.ChangeType((byte[])value, dt, settings.UseUtc2NormalTime); } } ValueEventArgs e = new ValueEventArgs(server, target.Item, target.Index, 0, null); AccessMode am = server.NotifyGetAttributeAccess(e); // If write is denied. if (am != AccessMode.Write && am != AccessMode.ReadWrite) { results.SetUInt8((byte)pos, (byte)ErrorCode.ReadWriteDenied); } else { e.Value = value; server.NotifyWrite(new ValueEventArgs[] { e }); if (e.Error != 0) { results.SetUInt8((byte)pos, (byte)e.Error); } else if (!e.Handled) { (target.Item as IGXDLMSBase).SetValue(settings, e); server.NotifyPostWrite(new ValueEventArgs[] { e }); } } } } if (xml != null) { xml.AppendEndTag(TranslatorTags.ListOfData); xml.AppendEndTag(Command.WriteRequest); return; } GenerateWriteResponse(settings, results, replyData); }
byte[] GetProfileGenericData(GXDLMSSettings settings, ValueEventArgs e) { List <GXKeyValuePair <GXDLMSObject, GXDLMSCaptureObject> > columns = null; //If all data is read. if (e.Selector == 0 || e.Parameters == null || e.RowEndIndex != 0) { return(GetData(settings, e, Buffer, columns)); } object[] arr = (object[])e.Parameters; List <object[]> table = new List <object[]>(); lock (Buffer) { if (e.Selector == 1) //Read by range { GXDataInfo info = new GXDataInfo(); info.Type = DataType.DateTime; DateTime start = ((GXDateTime)GXCommon.GetData(settings, new GXByteBuffer((byte[])arr[1]), info)).Value.LocalDateTime; info.Clear(); info.Type = DataType.DateTime; DateTime end = ((GXDateTime)GXCommon.GetData(settings, new GXByteBuffer((byte[])arr[2]), info)).Value.LocalDateTime; if (arr.Length > 3) { columns = GetColumns((Object[])((Object[])arr)[3]); } foreach (object[] row in Buffer) { DateTime tm = Convert.ToDateTime(row[0]); if (tm >= start && tm <= end) { table.Add(row); } } } else if (e.Selector == 2)//Read by entry. { int start = Convert.ToInt32(arr[0]); if (start == 0) { start = 1; } int count = Convert.ToInt32(arr[1]); if (count == 0) { count = Buffer.Count; } if (start + count > Buffer.Count + 1) { count = Buffer.Count; } int colStart = 1; int colCount = 0; if (arr.Length > 2) { colStart = Convert.ToUInt16(arr[2]); } if (arr.Length > 3) { colCount = Convert.ToUInt16(arr[3]); } else if (colStart != 1) { colCount = CaptureObjects.Count; } if (colStart != 1 || colCount != 0) { columns = new List <GXKeyValuePair <GXDLMSObject, GXDLMSCaptureObject> >(); for (int pos = 0; pos != colCount; ++pos) { columns.Add(CaptureObjects[colStart + pos - 1]); } } //Get rows. // Starting index is 1. for (int pos = 0; pos < count; ++pos) { if (pos + start - 1 == Buffer.Count) { break; } table.Add(Buffer[start + pos - 1]); } } else { throw new Exception("Invalid selector."); } } return(GetData(settings, e, table, columns)); }
///<summary> ///Handle set request. ///</summary> ///<returns> ///Reply to the client. ///</returns> private byte[][] HandleSetRequest() { ErrorCode error = ErrorCode.Ok; GXByteBuffer data = Reply.Data; GXDataInfo info = new GXDataInfo(); GXByteBuffer bb = new GXByteBuffer(); // Get type. short type = data.GetUInt8(); // Get invoke ID and priority. data.GetUInt8(); // SetRequest normal if (type == 1) { Settings.ResetBlockIndex(); ServerReply.Index = 0; // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute index. int index = data.GetUInt8(); // Get Access Selection. data.GetUInt8(); object value = GXCommon.GetData(data, info); GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } // If target is unknown. if (obj == null) { Debug.WriteLine("Undefined object."); // Device reports a undefined object. error = ErrorCode.UndefinedObject; } else { AccessMode am = obj.GetAccess(index); // If write is denied. if (am != AccessMode.Write && am != AccessMode.ReadWrite) { Debug.WriteLine("Read Write denied."); error = ErrorCode.ReadWriteDenied; } else { try { if (value is byte[]) { DataType dt = (obj as IGXDLMSBase).GetDataType(index); if (dt != DataType.None) { value = GXDLMSClient.ChangeType((byte[])value, dt); } } ValueEventArgs e = new ValueEventArgs(obj, index, 0, null); Write(e); if (!e.Handled) { (obj as IGXDLMSBase).SetValue(Settings, index, value); } } catch (Exception e) { Debug.WriteLine(e.Message); error = ErrorCode.HardwareFault; } } } } else { Debug.WriteLine("handleSetRequest failed. Unknown command."); Settings.ResetBlockIndex(); error = ErrorCode.HardwareFault; } return(GXDLMS.SplitPdu(Settings, Command.SetResponse, 1, bb, error, DateTime.MinValue)[0]); }
private byte[][] HandleGetRequest() { ErrorCode error = ErrorCode.Ok; GXByteBuffer data = Reply.Data; GXByteBuffer bb = new GXByteBuffer(); short type; int index = 0; object parameters = null; // Get type. type = data.GetUInt8(); // Get invoke ID and priority. data.GetUInt8(); // GetRequest normal if (type == 1) { Settings.ResetBlockIndex(); ServerReply.Index = 0; parameters = null; // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id int attributeIndex = data.GetUInt8(); GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." error = ErrorCode.UndefinedObject; } else { // AccessSelection int selection = data.GetUInt8(); int selector = 0; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(data, info); } ValueEventArgs e = new ValueEventArgs(obj, attributeIndex, 0, parameters); Read(e); object value; if (e.Handled) { value = e.Value; } else { value = (obj as IGXDLMSBase).GetValue(Settings, attributeIndex, selector, parameters); } GXDLMS.AppedData(obj, attributeIndex, bb, value); } ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, error, DateTime.MinValue); } else if (type == 2) { // Get request for next data block // Get block index. index = (int)data.GetUInt32(); if (index != Settings.BlockIndex + 1) { Debug.WriteLine("handleGetRequest failed. Invalid block number. " + Settings.BlockIndex + "/" + index); ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, ErrorCode.DataBlockNumberInvalid, DateTime.MinValue); index = 0; ServerReply.Index = index; } else { Settings.IncreaseBlockIndex(); index = ServerReply.Index + 1; ServerReply.Index = index; } } else if (type == 3) { // Get request with a list. int cnt = GXCommon.GetObjectCount(data); GXCommon.SetObjectCount(cnt, bb); for (int pos = 0; pos != cnt; ++pos) { ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); short attributeIndex = data.GetUInt8(); GXDLMSObject obj = Settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = FindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." error = ErrorCode.UndefinedObject; } else { // AccessSelection int selection = data.GetUInt8(); int selector = 0; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(data, info); } try { ValueEventArgs e = new ValueEventArgs(obj, attributeIndex, 0, parameters); Read(e); object value; if (e.Handled) { value = e.Value; } else { value = (obj as IGXDLMSBase).GetValue(Settings, attributeIndex, selector, parameters); } bb.SetUInt8(ErrorCode.Ok); GXDLMS.AppedData(obj, attributeIndex, bb, value); } catch (Exception) { bb.SetUInt8(1); bb.SetUInt8(ErrorCode.HardwareFault); } } } ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 3, bb, error, DateTime.MinValue); } else { Debug.WriteLine("handleGetRequest failed. Invalid command type."); Settings.ResetBlockIndex(); // Access Error : Device reports a hardware fault. ServerReply.ReplyMessages = GXDLMS.SplitPdu(Settings, Command.GetResponse, 1, bb, ErrorCode.HardwareFault, DateTime.MinValue); } ServerReply.Index = index; return(ServerReply.ReplyMessages[index]); }
private static void HanleSetRequestWithList(GXDLMSSettings settings, byte invokeID, GXDLMSServer server, GXByteBuffer data, GXDLMSLNParameters p, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ValueEventArgs e; int cnt = GXCommon.GetObjectCount(data); List <ValueEventArgs> list = new List <ValueEventArgs>(); if (xml != null) { xml.AppendStartTag(TranslatorTags.AttributeDescriptorList, "Qty", xml.IntegerToHex(cnt, 2)); } try { for (int pos = 0; pos != cnt; ++pos) { ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); short attributeIndex = data.GetUInt8(); // AccessSelection int selection = data.GetUInt8(); int selector = 0; object parameters = null; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(settings, data, info); } if (xml != null) { xml.AppendStartTag(TranslatorTags.AttributeDescriptorWithSelection); xml.AppendStartTag(TranslatorTags.AttributeDescriptor); xml.AppendComment(ci.ToString()); xml.AppendLine(TranslatorTags.ClassId, "Value", xml.IntegerToHex((int)ci, 4)); xml.AppendComment(GXCommon.ToLogicalName(ln)); xml.AppendLine(TranslatorTags.InstanceId, "Value", GXCommon.ToHex(ln, false)); xml.AppendLine(TranslatorTags.AttributeId, "Value", xml.IntegerToHex(attributeIndex, 2)); xml.AppendEndTag(TranslatorTags.AttributeDescriptor); xml.AppendEndTag(TranslatorTags.AttributeDescriptorWithSelection); } else { GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." e = new ValueEventArgs(server, obj, attributeIndex, 0, 0); e.Error = ErrorCode.UndefinedObject; list.Add(e); } else { ValueEventArgs arg = new ValueEventArgs(server, obj, attributeIndex, selector, parameters); arg.InvokeId = invokeID; if (server.NotifyGetAttributeAccess(arg) == AccessMode.NoAccess) { //Read Write denied. arg.Error = ErrorCode.ReadWriteDenied; list.Add(arg); } else { list.Add(arg); } } } } cnt = GXCommon.GetObjectCount(data); if (xml != null) { xml.AppendEndTag(TranslatorTags.AttributeDescriptorList); xml.AppendStartTag(TranslatorTags.ValueList, "Qty", xml.IntegerToHex(cnt, 2)); } for (int pos = 0; pos != cnt; ++pos) { GXDataInfo di = new GXDataInfo(); di.xml = xml; if (xml != null && xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendStartTag(Command.WriteRequest, SingleReadResponse.Data); } object value = GXCommon.GetData(settings, data, di); if (!di.Complete) { value = GXCommon.ToHex(data.Data, false, data.Position, data.Size - data.Position); } else if (value is byte[]) { value = GXCommon.ToHex((byte[])value, false); } if (xml != null && xml .OutputType == TranslatorOutputType.StandardXml) { xml.AppendEndTag(Command.WriteRequest, SingleReadResponse.Data); } } if (xml != null) { xml.AppendEndTag(TranslatorTags.ValueList); } } catch (Exception ex) { if (xml == null) { throw ex; } } }
/// <summary> /// Handle get request with list command. /// </summary> /// <param name="data">Received data.</param> private static void GetRequestWithList(GXDLMSSettings settings, byte invokeID, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ValueEventArgs e; GXByteBuffer bb = new GXByteBuffer(); int pos; int cnt = GXCommon.GetObjectCount(data); GXCommon.SetObjectCount(cnt, bb); List <ValueEventArgs> list = new List <ValueEventArgs>(); if (xml != null) { xml.AppendStartTag(TranslatorTags.AttributeDescriptorList, "Qty", xml.IntegerToHex(cnt, 2)); } try { for (pos = 0; pos != cnt; ++pos) { ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); short attributeIndex = data.GetUInt8(); // AccessSelection int selection = data.GetUInt8(); int selector = 0; object parameters = null; if (selection != 0) { selector = data.GetUInt8(); GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(settings, data, info); } if (xml != null) { xml.AppendStartTag(TranslatorTags.AttributeDescriptorWithSelection); xml.AppendStartTag(TranslatorTags.AttributeDescriptor); xml.AppendComment(ci.ToString()); xml.AppendLine(TranslatorTags.ClassId, "Value", xml.IntegerToHex((int)ci, 4)); xml.AppendComment(GXCommon.ToLogicalName(ln)); xml.AppendLine(TranslatorTags.InstanceId, "Value", GXCommon.ToHex(ln, false)); xml.AppendLine(TranslatorTags.AttributeId, "Value", xml.IntegerToHex(attributeIndex, 2)); xml.AppendEndTag(TranslatorTags.AttributeDescriptor); xml.AppendEndTag(TranslatorTags.AttributeDescriptorWithSelection); } else { GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } if (obj == null) { // "Access Error : Device reports a undefined object." e = new ValueEventArgs(server, obj, attributeIndex, 0, 0); e.Error = ErrorCode.UndefinedObject; list.Add(e); } else { ValueEventArgs arg = new ValueEventArgs(server, obj, attributeIndex, selector, parameters); arg.InvokeId = invokeID; if (server.NotifyGetAttributeAccess(arg) == AccessMode.NoAccess) { //Read Write denied. arg.Error = ErrorCode.ReadWriteDenied; list.Add(arg); } else { list.Add(arg); } } } } } catch (Exception ex) { if (xml == null) { throw ex; } } if (xml != null) { xml.AppendEndTag(TranslatorTags.AttributeDescriptorList); return; } server.NotifyRead(list.ToArray()); object value; pos = 0; foreach (ValueEventArgs it in list) { try { if (it.Handled) { value = it.Value; } else { value = (it.Target as IGXDLMSBase).GetValue(settings, it); } bb.SetUInt8(it.Error); if (it.ByteArray) { bb.Set((byte[])value); } else { GXDLMS.AppendData(settings, it.Target, it.Index, bb, value); } invokeID = (byte)it.InvokeId; } catch (Exception) { bb.SetUInt8((byte)ErrorCode.HardwareFault); } if (settings.Index != settings.Count) { server.transaction = new GXDLMSLongTransaction(list.ToArray(), Command.GetRequest, null); } ++pos; } server.NotifyPostRead(list.ToArray()); GXDLMSLNParameters p = new GXDLMSLNParameters(null, settings, invokeID, Command.GetResponse, 3, null, bb, 0xFF); GXDLMS.GetLNPdu(p, replyData); }
///<summary> /// Handle action request. ///</summary> public static void HandleMethodRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXDLMSConnectionEventArgs connectionInfo, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ErrorCode error = ErrorCode.Ok; GXByteBuffer bb = new GXByteBuffer(); // Get type. ActionRequestType type = (ActionRequestType)data.GetUInt8(); // Get invoke ID and priority. byte invokeId = data.GetUInt8(); settings.UpdateInvokeId(invokeId); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id byte id = data.GetUInt8(); // Get parameters. object parameters = null; byte selection = data.GetUInt8(); if (xml != null) { xml.AppendStartTag(Command.MethodRequest); if (type == ActionRequestType.Normal) { xml.AppendStartTag(Command.MethodRequest, ActionRequestType.Normal); xml.AppendLine(TranslatorTags.InvokeId, "Value", xml.IntegerToHex(invokeId, 2)); AppendMethodDescriptor(xml, (int)ci, ln, id); if (selection != 0) { //MethodInvocationParameters xml.AppendStartTag(TranslatorTags.MethodInvocationParameters); GXDataInfo di = new GXDataInfo(); di.xml = xml; GXCommon.GetData(settings, data, di); xml.AppendEndTag(TranslatorTags.MethodInvocationParameters); } xml.AppendEndTag(Command.MethodRequest, ActionRequestType.Normal); } xml.AppendEndTag(Command.MethodRequest); return; } if (selection != 0) { GXDataInfo info = new GXDataInfo(); parameters = GXCommon.GetData(settings, data, info); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (settings.Connected == ConnectionState.None && !settings.CanAccess() && (ci != ObjectType.AssociationLogicalName || id != 1)) { replyData.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } if (obj == null) { // Device reports a undefined object. error = ErrorCode.UndefinedObject; } else { ValueEventArgs e = new ValueEventArgs(server, obj, id, 0, parameters); e.InvokeId = invokeId; if (server.NotifyGetMethodAccess(e) == MethodAccessMode.NoAccess) { error = ErrorCode.ReadWriteDenied; } else { server.NotifyAction(new ValueEventArgs[] { e }); byte[] actionReply; if (e.Handled) { actionReply = (byte[])e.Value; } else { actionReply = (obj as IGXDLMSBase).Invoke(settings, e); server.NotifyPostAction(new ValueEventArgs[] { e }); } //Set default action reply if not given. if (actionReply != null && e.Error == 0) { //Add return parameters bb.SetUInt8(1); //Add parameters error code. bb.SetUInt8(0); GXCommon.SetData(settings, bb, GXDLMSConverter.GetDLMSDataType(actionReply), actionReply); } else { error = e.Error; //Add return parameters bb.SetUInt8(0); } } invokeId = (byte)e.InvokeId; } GXDLMSLNParameters p = new GXDLMSLNParameters(null, settings, invokeId, Command.MethodResponse, 1, null, bb, (byte)error); GXDLMS.GetLNPdu(p, replyData); //If High level authentication fails. if (obj is GXDLMSAssociationLogicalName && id == 1) { if ((obj as GXDLMSAssociationLogicalName).AssociationStatus == Objects.Enums.AssociationStatus.Associated) { server.NotifyConnected(connectionInfo); settings.Connected |= ConnectionState.Dlms; } else { server.NotifyInvalidConnection(connectionInfo); settings.Connected &= ~ConnectionState.Dlms; } } }
/// ///<summary>Handle read request. /// </summary> ///<returns> Reply to the client. </returns> /// private byte[][] HandleReadRequest() { GXByteBuffer data = Reply.Data; short type; object value = null; GXByteBuffer bb = new GXByteBuffer(); int cnt = GXCommon.GetObjectCount(data); GXCommon.SetObjectCount(cnt, bb); GXSNInfo info; for (int pos = 0; pos != cnt; ++pos) { type = data.GetUInt8(); // GetRequest normal if (type == 2) { int sn = data.GetUInt16(); info = FindSNObject(sn); if (!info.IsAction) { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, null); Read(e); if (e.Handled) { value = e.Value; } else { value = (info.Item as IGXDLMSBase).GetValue(Settings, info.Index, 0, null); } // Set status. bb.SetUInt8(0); GXDLMS.AppedData(info.Item, info.Index, bb, value); } else { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, null); Action(e); if (e.Handled) { value = e.Value; } else { value = ((IGXDLMSBase)info.Item).Invoke(Settings, info.Index, null); } // Set status. bb.SetUInt8(0); // Add value bb.SetUInt8(GXCommon.GetValueType(value)); bb.Add(value); } } else if (type == 2) { // Get request for next data block throw new System.ArgumentException("TODO: Invalid Command."); } else if (type == 4) { // Parameterised access. int sn = data.GetUInt16(); int selector = data.GetUInt8(); GXDataInfo di = new GXDataInfo(); object parameters = GXCommon.GetData(data, di); info = FindSNObject(sn); if (!info.IsAction) { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, parameters); Read(e); if (e.Handled) { value = e.Value; } else { value = (info.Item as IGXDLMSBase).GetValue(Settings, info.Index, selector, parameters); } // Set status. bb.SetUInt8(0); GXDLMS.AppedData(info.Item, info.Index, bb, value); } else { ValueEventArgs e = new ValueEventArgs(info.Item, info.Index, 0, parameters); e.Value = parameters; Action(e); if (e.Handled) { value = e.Value; } else { value = ((IGXDLMSBase)info.Item).Invoke(Settings, info.Index, parameters); } // Add value bb.Add(value); } } else { throw new System.ArgumentException("Invalid Command."); } } return(GXDLMS.SplitPdu(Settings, Command.ReadResponse, 1, bb, ErrorCode.Ok, DateTime.MinValue)[0]); }
/// <summary> /// Handle get request normal command. /// </summary> /// <param name="data">Received data.</param> private static void GetRequestNormal(GXDLMSSettings settings, byte invokeID, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { ValueEventArgs e = null; GXByteBuffer bb = new GXByteBuffer(); // Get type. ErrorCode status = ErrorCode.Ok; settings.Count = settings.Index = 0; settings.ResetBlockIndex(); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id byte attributeIndex = data.GetUInt8(); // AccessSelection byte selection = data.GetUInt8(); byte selector = 0; object parameters = null; GXDataInfo info = new GXDataInfo(); if (selection != 0) { selector = data.GetUInt8(); } if (xml != null) { AppendAttributeDescriptor(xml, (int)ci, ln, attributeIndex); if (selection != 0) { info.xml = xml; xml.AppendStartTag(TranslatorTags.AccessSelection); xml.AppendLine(TranslatorTags.AccessSelector, "Value", xml.IntegerToHex(selector, 2)); xml.AppendStartTag(TranslatorTags.AccessParameters); GXCommon.GetData(settings, data, info); xml.AppendEndTag(TranslatorTags.AccessParameters); xml.AppendEndTag(TranslatorTags.AccessSelection); } return; } if (selection != 0) { parameters = GXCommon.GetData(settings, data, info); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } e = new ValueEventArgs(server, obj, attributeIndex, selector, parameters); e.InvokeId = invokeID; if (obj == null) { // "Access Error : Device reports a undefined object." status = ErrorCode.UndefinedObject; } else { if (server.NotifyGetAttributeAccess(e) == AccessMode.NoAccess) { //Read Write denied. status = ErrorCode.ReadWriteDenied; } else { if (e.Target is GXDLMSProfileGeneric && attributeIndex == 2) { e.RowToPdu = GXDLMS.RowsToPdu(settings, (GXDLMSProfileGeneric)e.Target); } object value; server.NotifyRead(new ValueEventArgs[] { e }); if (e.Handled) { value = e.Value; } else { settings.Count = e.RowEndIndex - e.RowBeginIndex; value = (obj as IGXDLMSBase).GetValue(settings, e); } if (e.ByteArray) { bb.Set((byte[])value); } else { GXDLMS.AppendData(settings, obj, attributeIndex, bb, value); } server.NotifyPostRead(new ValueEventArgs[] { e }); status = e.Error; } } GXDLMSLNParameters p = new GXDLMSLNParameters(null, settings, e.InvokeId, Command.GetResponse, 1, null, bb, (byte)status); GXDLMS.GetLNPdu(p, replyData); if (settings.Count != settings.Index || bb.Size != bb.Position) { server.transaction = new GXDLMSLongTransaction(new ValueEventArgs[] { e }, Command.GetRequest, bb); } }
/// <summary> /// Import server settings and COSEM objects from GXDLMSDirector trace. /// </summary> /// <param name="server">Server where settings are updated.</param> /// <param name="data">GXDLMSDirector trace in byte array.</param> public static void Import(GXDLMSServer server, byte[] data, Standard standard) { GXDLMSTranslator translator = new GXDLMSTranslator(TranslatorOutputType.StandardXml); translator.CompletePdu = true; translator.PduOnly = true; translator.OmitXmlNameSpace = translator.OmitXmlDeclaration = true; XmlDocument doc = new XmlDocument(); List <ValueEventArgs> targets = new List <ValueEventArgs>(); GXDLMSSettings settings = new GXDLMSSettings(true, InterfaceType.HDLC); GXByteBuffer pdu = new GXByteBuffer(); GXByteBuffer bb = new GXByteBuffer(data); server.InterfaceType = GXDLMSTranslator.GetDlmsFraming(bb); bool lastBlock = true; GXByteBuffer val = new DLMS.GXByteBuffer(); GXDLMSConverter converter = new GXDLMSConverter(standard); while (translator.FindNextFrame(bb, pdu, server.InterfaceType)) { String xml = translator.MessageToXml(bb); if (xml != "") { doc.LoadXml(xml.Replace("&", "&")); foreach (XmlNode node in doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes) { string name = doc.ChildNodes[doc.ChildNodes.Count - 1].Name; if (name == "Ua" || name == "aarq" || name == "aare") { break; } else if (name == "get-request") { server.UseLogicalNameReferencing = true; GetLN(settings.Objects, targets, node.ChildNodes); } else if (name == "readRequest") { List <short> items = GetSN(node.ChildNodes); server.UseLogicalNameReferencing = false; foreach (short it in items) { GXSNInfo i = GXDLMSSNCommandHandler.FindSNObject(settings.Objects, Convert.ToUInt16((it) & 0xFFFF)); targets.Add(new ValueEventArgs(i.Item, i.Index, 0, null)); } } else if (name == "readResponse" || name == "get-response") { if (targets != null) { List <string> items; if (server.UseLogicalNameReferencing) { items = GetLNValues(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes); } else { items = GetSNValues(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes); } int pos = 0; foreach (string it in items) { if ("other-reason".Equals(it) || "read-write-denied".Equals(it) || "scope-of-access-violated".Equals(it) || "object-unavailable".Equals(it) || "object-class-inconsistent".Equals(it)) { ValueEventArgs ve = targets[pos]; ve.Target.SetAccess(ve.Index, AccessMode.NoAccess); continue; } try { if (server.UseLogicalNameReferencing) { lastBlock = IsLastBlock(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes); } val.Set(translator.XmlToData(it)); if (lastBlock) { if (settings.Objects.Count == 0) { GXDLMSClient c = new GXDLMSClient(); c.UseLogicalNameReferencing = server.UseLogicalNameReferencing; settings.Objects = c.ParseObjects(val, true); //Update OBIS code description. converter.UpdateOBISCodeInformation(settings.Objects); } else if (targets.Count != 0) { ValueEventArgs ve = targets[pos]; GXDataInfo info = new GXDataInfo(); ve.Value = GXCommon.GetData(server.Settings, val, info); if (ve.Value is byte[] && ve.Target != null) { DataType tp = ve.Target.GetUIDataType(ve.Index); if (tp != DataType.None) { ve.Value = GXDLMSClient.ChangeType((byte[])ve.Value, tp, false); ve.Target.SetDataType(ve.Index, DataType.OctetString); } } if (ve.Target is IGXDLMSBase) { ((IGXDLMSBase)ve.Target).SetValue(settings, ve); } } val.Clear(); } } catch (Exception) { ValueEventArgs ve = targets[pos]; ve.Target.SetAccess(ve.Index, AccessMode.NoAccess); } ++pos; } if (lastBlock) { targets.Clear(); break; } } } } } } server.Items.Clear(); server.Items.AddRange(settings.Objects); }
private static void HandleSetRequestNormal(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, byte type, GXDLMSLNParameters p, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { object value = null; GXDataInfo reply = new GXDataInfo(); // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute index. byte index = data.GetUInt8(); // Get Access Selection. data.GetUInt8(); if (type == 2) { byte lastBlock = data.GetUInt8(); p.multipleBlocks = lastBlock == 0; UInt32 blockNumber = data.GetUInt32(); if (blockNumber != settings.BlockIndex) { Debug.WriteLine("HandleSetRequest failed. Invalid block number. " + settings.BlockIndex + "/" + blockNumber); p.status = (byte)ErrorCode.DataBlockNumberInvalid; return; } settings.IncreaseBlockIndex(); int size = GXCommon.GetObjectCount(data); int realSize = data.Size - data.Position; if (size != realSize) { Debug.WriteLine("HandleSetRequest failed. Invalid block size."); p.status = (byte)ErrorCode.DataBlockUnavailable; return; } if (xml != null) { AppendAttributeDescriptor(xml, (int)ci, ln, index); xml.AppendStartTag(TranslatorTags.DataBlock); xml.AppendLine(TranslatorTags.LastBlock, "Value", xml.IntegerToHex(lastBlock, 2)); xml.AppendLine(TranslatorTags.BlockNumber, "Value", xml.IntegerToHex(blockNumber, 8)); xml.AppendLine(TranslatorTags.RawData, "Value", data.RemainingHexString(false)); xml.AppendEndTag(TranslatorTags.DataBlock); } return; } if (xml != null) { AppendAttributeDescriptor(xml, (int)ci, ln, index); xml.AppendStartTag(TranslatorTags.Value); GXDataInfo di = new GXDataInfo(); di.xml = xml; value = GXCommon.GetData(settings, data, di); if (!di.Complete) { value = GXCommon.ToHex(data.Data, false, data.Position, data.Size - data.Position); } else if (value is byte[]) { value = GXCommon.ToHex((byte[])value, false); } xml.AppendEndTag(TranslatorTags.Value); return; } if (!p.multipleBlocks) { settings.ResetBlockIndex(); value = GXCommon.GetData(settings, data, reply); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXCommon.ToLogicalName(ln)); if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXCommon.ToLogicalName(ln)); } // If target is unknown. if (obj == null) { // Device reports a undefined object. p.status = (byte)ErrorCode.UndefinedObject; } else { ValueEventArgs e = new ValueEventArgs(server, obj, index, 0, null); e.InvokeId = p.InvokeId; AccessMode am = server.NotifyGetAttributeAccess(e); // If write is denied. if (am != AccessMode.Write && am != AccessMode.ReadWrite) { //Read Write denied. p.status = (byte)ErrorCode.ReadWriteDenied; } else { try { if (value is byte[]) { DataType dt = (obj as IGXDLMSBase).GetDataType(index); if (dt != DataType.None && dt != DataType.OctetString && dt != DataType.Structure) { value = GXDLMSClient.ChangeType((byte[])value, dt, settings.UseUtc2NormalTime); } } e.Value = value; ValueEventArgs[] list = new ValueEventArgs[] { e }; if (p.multipleBlocks) { server.transaction = new GXDLMSLongTransaction(list, Command.GetRequest, data); } server.NotifyWrite(list); if (e.Error != 0) { p.status = (byte)e.Error; } else if (!e.Handled && !p.multipleBlocks) { (obj as IGXDLMSBase).SetValue(settings, e); server.NotifyPostWrite(list); if (e.Error != 0) { p.status = (byte)e.Error; } } p.InvokeId = e.InvokeId; } catch (Exception) { p.status = (byte)ErrorCode.HardwareFault; } } } }
/// <summary> /// Handle Information Report. /// </summary> /// <param name="settings">DLMS settings.</param> /// <param name="reply"></param> /// <returns></returns> public static void HandleInformationReport(GXDLMSSettings settings, GXReplyData reply, List <KeyValuePair <GXDLMSObject, int> > list) { reply.Time = DateTime.MinValue; int len = reply.Data.GetUInt8(); byte[] tmp = null; // If date time is given. if (len != 0) { tmp = new byte[len]; reply.Data.Get(tmp); reply.Time = (GXDateTime)GXDLMSClient.ChangeType(tmp, DataType.DateTime, settings.UseUtc2NormalTime); } byte type; int count = GXCommon.GetObjectCount(reply.Data); if (reply.Xml != null) { reply.Xml.AppendStartTag(Command.InformationReport); if (reply.Time != DateTime.MinValue) { reply.Xml.AppendComment(Convert.ToString(reply.Time)); if (reply.Xml.OutputType == TranslatorOutputType.SimpleXml) { reply.Xml.AppendLine(TranslatorTags.CurrentTime, null, GXCommon.ToHex(tmp, false)); } else { reply.Xml.AppendLine(TranslatorTags.CurrentTime, null, GXCommon.GeneralizedTime(reply.Time)); } } reply.Xml.AppendStartTag(TranslatorTags.ListOfVariableAccessSpecification, "Qty", reply.Xml.IntegerToHex(count, 2)); } for (int pos = 0; pos != count; ++pos) { type = reply.Data.GetUInt8(); if (type == (byte)VariableAccessSpecification.VariableName) { int sn = reply.Data.GetUInt16(); if (reply.Xml != null) { reply.Xml.AppendLine( (int)Command.WriteRequest << 8 | (int)VariableAccessSpecification.VariableName, "Value", reply.Xml.IntegerToHex(sn, 4)); } else { GXSNInfo info = FindSNObject(settings.Objects, sn); if (info.Item != null) { list.Add(new KeyValuePair <GXDLMSObject, int>(info.Item, info.Index)); } else { System.Diagnostics.Debug.WriteLine(string.Format("Unknown object : {0}.", sn)); } } } } if (reply.Xml != null) { reply.Xml.AppendEndTag(TranslatorTags.ListOfVariableAccessSpecification); reply.Xml.AppendStartTag(TranslatorTags.ListOfData, "Qty", reply.Xml.IntegerToHex(count, 2)); } //Get values. count = GXCommon.GetObjectCount(reply.Data); GXDataInfo di = new GXDataInfo(); di.xml = reply.Xml; for (int pos = 0; pos != count; ++pos) { di.Clear(); if (reply.Xml != null) { GXCommon.GetData(settings, reply.Data, di); } else { ValueEventArgs v = new ValueEventArgs(list[pos].Key, list[pos].Value, 0, null); v.Value = GXCommon.GetData(settings, reply.Data, di); (list[pos].Key as IGXDLMSBase).SetValue(settings, v); } } if (reply.Xml != null) { reply.Xml.AppendEndTag(TranslatorTags.ListOfData); reply.Xml.AppendEndTag(Command.InformationReport); } }
///<summary> /// Handle Access request. ///</summary> public static void HandleAccessRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer reply, GXDLMSTranslatorStructure xml) { //Return error if connection is not established. if (xml == null && settings.Connected == ConnectionState.None && !settings.CanAccess()) { reply.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } //Get long invoke id and priority. UInt32 invokeId = data.GetUInt32(); settings.longInvokeID = invokeId; int len = GXCommon.GetObjectCount(data); byte[] tmp = null; // If date time is given. if (len != 0) { tmp = new byte[len]; data.Get(tmp); if (xml == null) { DataType dt = DataType.DateTime; if (len == 4) { dt = DataType.Time; } else if (len == 5) { dt = DataType.Date; } GXDataInfo info = new GXDataInfo(); info.Type = dt; GXCommon.GetData(settings, new GXByteBuffer(tmp), info); } } // Get object count. int cnt = GXCommon.GetObjectCount(data); if (xml != null) { xml.AppendStartTag(Command.AccessRequest); xml.AppendLine(TranslatorTags.LongInvokeId, "Value", xml.IntegerToHex(invokeId, 2)); xml.AppendLine(TranslatorTags.DateTime, "Value", GXCommon.ToHex(tmp, false)); xml.AppendStartTag(TranslatorTags.AccessRequestBody); xml.AppendStartTag(TranslatorTags.ListOfAccessRequestSpecification, "Qty", xml.IntegerToHex(cnt, 2)); } AccessServiceCommandType type; for (int pos = 0; pos != cnt; ++pos) { type = (AccessServiceCommandType)data.GetUInt8(); if (!(type == AccessServiceCommandType.Get || type == AccessServiceCommandType.Set || type == AccessServiceCommandType.Action)) { throw new ArgumentException("Invalid access service command type."); } // CI ObjectType ci = (ObjectType)data.GetUInt16(); byte[] ln = new byte[6]; data.Get(ln); // Attribute Id byte attributeIndex = data.GetUInt8(); if (xml != null) { xml.AppendStartTag(TranslatorTags.AccessRequestSpecification); xml.AppendStartTag(Command.AccessRequest, type); AppendAttributeDescriptor(xml, (int)ci, ln, attributeIndex); xml.AppendEndTag(Command.AccessRequest, type); xml.AppendEndTag(TranslatorTags.AccessRequestSpecification); } } if (xml != null) { xml.AppendEndTag(TranslatorTags.ListOfAccessRequestSpecification); xml.AppendStartTag(TranslatorTags.AccessRequestListOfData, "Qty", xml.IntegerToHex(cnt, 2)); } // Get data count. cnt = GXCommon.GetObjectCount(data); for (int pos = 0; pos != cnt; ++pos) { GXDataInfo di = new GXDataInfo(); di.xml = xml; if (xml != null && xml.OutputType == TranslatorOutputType.StandardXml) { xml.AppendStartTag(Command.WriteRequest, SingleReadResponse.Data); } object value = GXCommon.GetData(settings, data, di); if (!di.Complete) { value = GXCommon.ToHex(data.Data, false, data.Position, data.Size - data.Position); } else if (value is byte[]) { value = GXCommon.ToHex((byte[])value, false); } if (xml != null && xml .OutputType == TranslatorOutputType.StandardXml) { xml.AppendEndTag(Command.WriteRequest, SingleReadResponse.Data); } } if (xml != null) { xml.AppendEndTag(TranslatorTags.AccessRequestListOfData); xml.AppendEndTag(TranslatorTags.AccessRequestBody); xml.AppendEndTag(Command.AccessRequest); } }
///<summary> /// Handle write request. ///</summary> ///<param name="Reply"> /// Received data from the client. /// </param> ///<returns> /// Reply. ///</returns> private byte[][] HandleWriteRequest() { GXByteBuffer data = Reply.Data; short type; object value; // Get object count. IList <GXSNInfo> targets = new List <GXSNInfo>(); int cnt = GXCommon.GetObjectCount(data); GXByteBuffer results = new GXByteBuffer((ushort)cnt); for (int pos = 0; pos != cnt; ++pos) { type = data.GetUInt8(); if (type == 2) { int sn = data.GetUInt16(); GXSNInfo info = FindSNObject(sn); targets.Add(info); // If target is unknown. if (info == null) { // Device reports a undefined object. results.SetUInt8(ErrorCode.UndefinedObject); } else { results.SetUInt8(ErrorCode.Ok); } } else { // Device reports a HW error. results.SetUInt8(ErrorCode.HardwareFault); } } // Get data count. cnt = GXCommon.GetObjectCount(data); GXDataInfo di = new GXDataInfo(); for (int pos = 0; pos != cnt; ++pos) { if (results.GetUInt8(pos) == 0) { // If object has found. GXSNInfo target = targets[pos]; value = GXCommon.GetData(data, di); if (value is byte[]) { DataType dt = target.Item.GetDataType(target.Index); if (dt != DataType.None && dt != DataType.OctetString) { value = GXDLMSClient.ChangeType((byte[])value, dt); } } di.Clear(); AccessMode am = target.Item.GetAccess(target.Index); // If write is denied. if (am != AccessMode.Write && am != AccessMode.ReadWrite) { results.SetUInt8((byte)pos, (byte)ErrorCode.ReadWriteDenied); } else { ValueEventArgs e = new ValueEventArgs(target.Item, target.Index, 0, null); e.Value = value; Write(e); if (!e.Handled) { (target.Item as IGXDLMSBase).SetValue(Settings, target.Index, value); } } } } GXByteBuffer bb = new GXByteBuffer((UInt16)(2 * cnt + 2)); GXCommon.SetObjectCount(cnt, bb); byte ret; for (int pos = 0; pos != cnt; ++pos) { ret = results.GetUInt8(pos); // If meter returns error. if (ret != 0) { bb.SetUInt8(1); } bb.SetUInt8(ret); } return(GXDLMS.SplitPdu(Settings, Command.WriteResponse, 1, bb, ErrorCode.Ok, DateTime.MinValue)[0]); }