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 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); } }
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 get request next data block command. /// </summary> /// <param name="data">Received data.</param> internal static void GetRequestNextDataBlock(GXDLMSSettings settings, byte invokeID, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml, bool streaming) { GXByteBuffer bb = new GXByteBuffer(); if (!streaming) { UInt32 index; // Get block index. index = data.GetUInt32(); if (xml != null) { xml.AppendLine(TranslatorTags.BlockNumber, null, xml.IntegerToHex(index, 8)); return; } if (index != settings.BlockIndex) { Debug.WriteLine("handleGetRequest failed. Invalid block number. " + settings.BlockIndex + "/" + index); GXDLMS.GetLNPdu(new GXDLMSLNParameters(null, settings, 0, Command.GetResponse, 2, null, bb, (byte)ErrorCode.DataBlockNumberInvalid), replyData); return; } } settings.IncreaseBlockIndex(); GXDLMSLNParameters p = new GXDLMSLNParameters(null, settings, invokeID, streaming ? Command.GeneralBlockTransfer : Command.GetResponse, 2, null, bb, (byte)ErrorCode.Ok); p.Streaming = streaming; p.WindowSize = settings.WindowSize; //If transaction is not in progress. if (server.transaction == null) { p.status = (byte)ErrorCode.NoLongGetOrReadInProgress; } else { bb.Set(server.transaction.data); bool moreData = settings.Index != settings.Count; if (moreData) { //If there is multiple blocks on the buffer. //This might happen when Max PDU size is very small. if (bb.Size < settings.MaxPduSize) { foreach (ValueEventArgs arg in server.transaction.targets) { object value; server.NotifyRead(new ValueEventArgs[] { arg }); if (arg.Handled) { value = arg.Value; } else { value = (arg.Target as IGXDLMSBase).GetValue(settings, arg); } //Add data. if (arg.ByteArray) { bb.Set((byte[])value); } else { GXDLMS.AppendData(settings, arg.Target, arg.Index, bb, value); } } moreData = settings.Index != settings.Count; } } p.multipleBlocks = true; GXDLMS.GetLNPdu(p, replyData); if (moreData || bb.Size - bb.Position != 0) { server.transaction.data = bb; } else { server.transaction = null; settings.ResetBlockIndex(); } } }
uint IConvertible.ToUInt32(IFormatProvider provider) { GXByteBuffer bb = GetByteBuffer(Value, 4); return(bb.GetUInt32()); }
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]); }
///<summary> /// Handle Access request. ///</summary> ///<param name="Reply"> /// Received data from the client. /// </param> ///<returns> /// Reply. ///</returns> 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) { reply.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError, ServiceError.Service, (byte)Service.Unsupported)); return; } //Get long invoke id and priority. UInt32 invokeId = data.GetUInt32(); 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); } }
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); } } 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]); } } catch (Exception) { p.status = (byte)ErrorCode.HardwareFault; } finally { server.transaction = null; } settings.ResetBlockIndex(); } } p.multipleBlocks = true; }
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 (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 (type == 2) { p.multipleBlocks = data.GetUInt8() == 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 (!p.multipleBlocks) { settings.ResetBlockIndex(); value = GXCommon.GetData(settings, data, reply); } GXDLMSObject obj = settings.Objects.FindByLN(ci, GXDLMSObject.ToLogicalName(ln)); if (obj == null) { obj = server.NotifyFindObject(ci, 0, GXDLMSObject.ToLogicalName(ln)); } // If target is unknown. if (obj == null) { // Device reports a undefined object. p.status = (byte)ErrorCode.UndefinedObject; } else { AccessMode am = obj.GetAccess(index); // 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) { value = GXDLMSClient.ChangeType((byte[])value, dt); } } ValueEventArgs e = new ValueEventArgs(settings, obj, index, 0, null); 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); } } catch (Exception) { p.status = (byte)ErrorCode.HardwareFault; } } } }
/// <summary> /// Handle get request next data block command. /// </summary> /// <param name="data">Received data.</param> private static void GetRequestNextDataBlock(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml) { GXByteBuffer bb = new GXByteBuffer(); UInt32 index; // Get block index. index = data.GetUInt32(); if (xml != null) { xml.AppendLine(TranslatorTags.BlockNumber, null, xml.IntegerToHex(index, 8)); return; } if (index != settings.BlockIndex) { Debug.WriteLine("handleGetRequest failed. Invalid block number. " + settings.BlockIndex + "/" + index); GXDLMS.GetLNPdu(new GXDLMSLNParameters(settings, Command.GetResponse, 2, null, bb, (byte)ErrorCode.DataBlockNumberInvalid), replyData); } else { settings.IncreaseBlockIndex(); GXDLMSLNParameters p = new GXDLMSLNParameters(settings, Command.GetResponse, 2, null, bb, (byte)ErrorCode.Ok); //If transaction is not in progress. if (server.transaction == null) { p.status = (byte)ErrorCode.NoLongGetOrReadInProgress; } else { bb.Set(server.transaction.data); bool moreData = settings.Index != settings.Count; if (moreData) { //If there is multiple blocks on the buffer. //This might happen when Max PDU size is very small. if (bb.Size < settings.MaxPduSize) { foreach (ValueEventArgs arg in server.transaction.targets) { object value; if (arg.Handled) { server.NotifyRead(new ValueEventArgs[] { arg }); value = arg.Value; } else { value = (arg.Target as IGXDLMSBase).GetValue(settings, arg); } //Add data. GXDLMS.AppendData(settings, arg.Target, arg.Index, bb, value); } moreData = settings.Index != settings.Count; } } p.multipleBlocks = true; GXDLMS.GetLNPdu(p, replyData); if (moreData || bb.Size - bb.Position != 0) { server.transaction.data = bb; } else { server.transaction = null; } } } }
private void GetUa(GXByteBuffer data, GXDLMSTranslatorStructure xml) { xml.AppendStartTag(Command.Ua); data.GetUInt8(); // Skip FromatID data.GetUInt8(); // Skip Group ID. data.GetUInt8(); // Skip Group len Object val; while (data.Position < data.Size) { HDLCInfo id = (HDLCInfo)data.GetUInt8(); short len = data.GetUInt8(); switch (len) { case 1: val = data.GetUInt8(); break; case 2: val = data.GetUInt16(); break; case 4: val = data.GetUInt32(); break; default: throw new GXDLMSException("Invalid Exception."); } // RX / TX are delivered from the partner's point of view => // reversed to ours switch (id) { case HDLCInfo.MaxInfoTX: xml.AppendLine("<MaxInfoRX Value=\"" + val.ToString() + "\" />"); break; case HDLCInfo.MaxInfoRX: xml.AppendLine("<MaxInfoTX Value=\"" + val.ToString() + "\" />"); break; case HDLCInfo.WindowSizeTX: xml.AppendLine("<WindowSizeRX Value=\"" + val.ToString() + "\" />"); break; case HDLCInfo.WindowSizeRX: xml.AppendLine("<WindowSizeTX Value=\"" + val.ToString() + "\" />"); break; default: throw new GXDLMSException("Invalid UA response."); } } xml.AppendEndTag(Command.Ua); }