|
private SetUInt8 ( |
||
| value | The value to be added. | |
| return | void | |
/// <summary>
/// Generate write reply.
/// </summary>
/// <param name="settings"></param>
/// <param name="results"></param>
/// <param name="replyData"></param>
internal static void GenerateWriteResponse(GXDLMSSettings settings, GXByteBuffer results, GXByteBuffer replyData)
{
GXByteBuffer bb = new GXByteBuffer((UInt16)(2 * results.Size));
byte ret;
for (int pos = 0; pos != results.Size; ++pos)
{
ret = results.GetUInt8(pos);
// If meter returns error.
if (ret != 0)
{
bb.SetUInt8(1);
}
bb.SetUInt8(ret);
}
GXDLMSSNParameters p = new GXDLMSSNParameters(settings, Command.WriteResponse, results.Size, 0xFF, null, bb);
GXDLMS.GetSNPdu(p, replyData);
}
public static void HandleGetRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
{
//Return error if connection is not established.
if (xml == null && settings.Connected == ConnectionState.None && !settings.CanAccess())
{
replyData.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError,
ServiceError.Service, (byte)Service.Unsupported));
return;
}
byte invokeID = 0;
GetCommandType type = GetCommandType.NextDataBlock;
//If GBT is used data is empty.
if (data.Size != 0)
{
type = (GetCommandType)data.GetUInt8();
// Get invoke ID and priority.
invokeID = data.GetUInt8();
if (xml != null)
{
xml.AppendStartTag(Command.GetRequest);
xml.AppendStartTag(Command.GetRequest, type);
xml.AppendLine(TranslatorTags.InvokeId, "Value", xml.IntegerToHex(invokeID, 2));
}
}
// GetRequest normal
if (type == GetCommandType.Normal)
{
GetRequestNormal(settings, invokeID, server, data, replyData, xml);
}
else if (type == GetCommandType.NextDataBlock)
{
// Get request for next data block
GetRequestNextDataBlock(settings, invokeID, server, data, replyData, xml, false);
}
else if (type == GetCommandType.WithList)
{
// Get request with a list.
GetRequestWithList(settings, invokeID, server, data, replyData, xml);
}
else
{
Debug.WriteLine("HandleGetRequest failed. Invalid command type.");
settings.ResetBlockIndex();
GXByteBuffer bb = new GXByteBuffer();
// Access Error : Device reports a hardware fault.
bb.SetUInt8((byte)ErrorCode.HardwareFault);
GXDLMS.GetLNPdu(new GXDLMSLNParameters(settings, invokeID, Command.GetResponse, (byte)type, null, bb, (byte)ErrorCode.Ok), replyData);
}
if (xml != null)
{
xml.AppendEndTag(Command.GetRequest, type);
xml.AppendEndTag(Command.GetRequest);
}
}
///<summary>
///Generates disconnect request.
/// </summary>
///<returns>
///Disconnect request.
///</returns>
private byte[][] GenerateDisconnectRequest()
{
GXByteBuffer buff;
if (this.InterfaceType == InterfaceType.WRAPPER)
{
buff = new GXByteBuffer(2);
buff.SetUInt8(0x63);
buff.SetUInt8(0x0);
return(GXDLMS.SplitToWrapperFrames(Settings, buff));
}
else
{
buff = new GXByteBuffer(22);
buff.SetUInt8(0x81); // FromatID
buff.SetUInt8(0x80); // GroupID
buff.SetUInt8(0); // Length
buff.SetUInt8(HDLCInfo.MaxInfoTX);
buff.SetUInt8(GXCommon.GetSize(Limits.MaxInfoTX));
buff.Add(Limits.MaxInfoTX);
buff.SetUInt8(HDLCInfo.MaxInfoRX);
buff.SetUInt8(GXCommon.GetSize(Limits.MaxInfoRX));
buff.Add(Limits.MaxInfoRX);
buff.SetUInt8(HDLCInfo.WindowSizeTX);
buff.SetUInt8(GXCommon.GetSize(Limits.WindowSizeTX));
buff.Add(Limits.WindowSizeTX);
buff.SetUInt8(HDLCInfo.WindowSizeRX);
buff.SetUInt8(GXCommon.GetSize(Limits.WindowSizeRX));
buff.Add(Limits.WindowSizeRX);
int len = buff.Position - 3;
buff.SetUInt8(2, (byte)len); // Length.
}
return(GXDLMS.SplitToHdlcFrames(Settings, (byte)Command.Ua, buff));
}
/// <summary>
/// Generates data notification message.
/// </summary>
/// <param name="date">Date time. Set To Min or Max if not added</param>
/// <param name="data">Notification body.</param>
/// <returns>Generated data notification message(s).</returns>
public byte[][] GetDataNotificationMessage(DateTime date, byte[] data)
{
GXByteBuffer buff = new GXByteBuffer();
if (date == DateTime.MinValue || date == DateTime.MaxValue)
{
buff.SetUInt8(DataType.None);
}
else
{
GXCommon.SetData(buff, DataType.DateTime, date);
}
buff.Set(data);
return(GXDLMS.SplitPdu(Settings, Command.DataNotification, 0, buff, ErrorCode.Ok, DateTime.MinValue)[0]);
}
/// <summary>
/// Generates data notification message.
/// </summary>
/// <param name="date">Date time. Set To Min or Max if not added</param>
/// <param name="objects">List of objects and attribute indexes to notify.</param>
/// <returns>Generated data notification message(s).</returns>
public byte[][] GenerateDataNotificationMessage(DateTime date, List <KeyValuePair <GXDLMSObject, int> > objects)
{
if (objects == null)
{
throw new ArgumentNullException("objects");
}
GXByteBuffer buff = new GXByteBuffer();
if (date == DateTime.MinValue || date == DateTime.MaxValue)
{
buff.SetUInt8(DataType.None);
}
else
{
GXCommon.SetData(buff, DataType.DateTime, date);
}
buff.SetUInt8(DataType.Array);
GXCommon.SetObjectCount(objects.Count, buff);
foreach (KeyValuePair <GXDLMSObject, int> it in objects)
{
AddData(it.Key, it.Value, buff);
}
return(GXDLMS.SplitPdu(Settings, Command.DataNotification, 0, buff, ErrorCode.Ok, DateTime.MinValue)[0]);
}
private byte[] ReportError(Command cmd, ErrorCode error)
{
switch (cmd)
{
case Command.ReadRequest:
cmd = Command.ReadResponse;
break;
case Command.WriteRequest:
cmd = Command.WriteResponse;
break;
case Command.GetRequest:
cmd = Command.GetResponse;
break;
case Command.SetRequest:
cmd = Command.SetResponse;
break;
case Command.MethodRequest:
cmd = Command.MethodResponse;
break;
default:
//Return HW error and close connection..
break;
}
if (Settings.UseLogicalNameReferencing)
{
GXDLMS.GetLNPdu(new GXDLMSLNParameters(Settings, 0, cmd, 1, null, null, (byte)error), replyData);
}
else
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(error);
GXDLMSSNParameters p = new GXDLMSSNParameters(Settings, cmd, 1, (byte)error, null, bb);
GXDLMS.GetSNPdu(p, replyData);
}
if (this.InterfaceType == Enums.InterfaceType.WRAPPER)
{
return(GXDLMS.GetWrapperFrame(Settings, replyData));
}
else
{
return(GXDLMS.GetHdlcFrame(Settings, 0, replyData));
}
}
/// <summary>
/// Generates push setup message.
/// </summary>
/// <param name="date"> Date time. Set To Min or Max if not added.</param>
/// <param name="push">Target Push object.</param>
/// <returns>Generated data notification message(s).</returns>
public byte[][] GeneratePushSetupMessages(DateTime date, GXDLMSPushSetup push)
{
if (push == null)
{
throw new ArgumentNullException("push");
}
GXByteBuffer buff = new GXByteBuffer();
buff.SetUInt8((byte)DataType.Structure);
GXCommon.SetObjectCount(push.PushObjectList.Count, buff);
foreach (KeyValuePair <GXDLMSObject, GXDLMSCaptureObject> it in push.PushObjectList)
{
AddData(it.Key, it.Value.AttributeIndex, buff);
}
return(GenerateDataNotificationMessages(date, buff));
}
/// <summary>
/// Sends Event Notification Request.
/// </summary>
/// <param name="time">Send time.</param>
/// <param name="item">COSEM object and attribute index to report.</param>
/// <returns>Report request as byte array.</returns>
public byte[][] GenerateEventNotification(DateTime time, KeyValuePair <GXDLMSObject, int> item)
{
GXByteBuffer buff = new GXByteBuffer();
byte[][] reply;
if (UseLogicalNameReferencing)
{
buff.SetUInt16((ushort)item.Key.ObjectType);
buff.Set(GXCommon.LogicalNameToBytes(item.Key.LogicalName));
buff.SetUInt8((byte)item.Value);
AddData(item.Key, item.Value, buff);
GXDLMSLNParameters p = new GXDLMSLNParameters(null, Settings, 0, Command.EventNotification, 0, null, buff, 0xff, Command.None);
p.time = time;
reply = GXDLMS.GetLnMessages(p);
}
else
{
throw new Exception("Use GenerateInformationReport when Short Name referencing is used.");
}
return(reply);
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <param name="reply"></param>
internal static void GetSNPdu(GXDLMSSNParameters p, GXByteBuffer reply)
{
bool ciphering = p.settings.Cipher != null && p.settings.Cipher.Security != Gurux.DLMS.Enums.Security.None;
if (!ciphering && p.settings.InterfaceType == InterfaceType.HDLC)
{
if (p.settings.IsServer)
{
reply.Set(GXCommon.LLCReplyBytes);
}
else if (reply.Size == 0)
{
reply.Set(GXCommon.LLCSendBytes);
}
}
int cnt = 0, cipherSize = 0;
if (ciphering)
{
cipherSize = CipheringHeaderSize;
/*
if (p.settings.Cipher.Security == Security.Encryption)
{
cipherSize = 7;
}
else if (p.settings.Cipher.Security == Security.Authentication)
{
cipherSize = 19;
}
else if (p.settings.Cipher.Security == Security.AuthenticationEncryption)
{
cipherSize = 7;
}
* */
}
if (p.data != null)
{
cnt = p.data.Size - p.data.Position;
}
// Add command.
if (p.command != Command.Aarq && p.command != Command.Aare)
{
reply.SetUInt8((byte)p.command);
if (p.count != 0xFF)
{
GXCommon.SetObjectCount(p.count, reply);
}
if (p.requestType != 0xFF)
{
reply.SetUInt8(p.requestType);
}
reply.Set(p.attributeDescriptor);
if (!p.multipleBlocks)
{
p.multipleBlocks = reply.Size + cipherSize + cnt > p.settings.MaxPduSize;
//If reply data is not fit to one PDU.
if (p.multipleBlocks)
{
//Remove command.
GXByteBuffer tmp = new GXByteBuffer();
int offset = 1;
if (!ciphering && p.settings.InterfaceType == InterfaceType.HDLC)
{
offset = 4;
}
tmp.Set(reply.Data, offset, reply.Size - offset);
reply.Size = 0;
if (!ciphering && p.settings.InterfaceType == InterfaceType.HDLC)
{
if (p.settings.IsServer)
{
reply.Set(GXCommon.LLCReplyBytes);
}
else if (reply.Size == 0)
{
reply.Set(GXCommon.LLCSendBytes);
}
}
if (p.command == Command.WriteRequest)
{
p.requestType = (byte)VariableAccessSpecification.WriteDataBlockAccess;
}
else if (p.command == Command.ReadRequest)
{
p.requestType = (byte)VariableAccessSpecification.ReadDataBlockAccess;
}
else if (p.command == Command.ReadResponse)
{
p.requestType = (byte)SingleReadResponse.DataBlockResult;
}
else
{
throw new ArgumentException("Invalid command.");
}
reply.SetUInt8((byte)p.command);
//Set object count.
reply.SetUInt8(1);
if (p.requestType != 0xFF)
{
reply.SetUInt8(p.requestType);
}
cnt = GXDLMS.AppendMultipleSNBlocks(p, tmp, reply);
}
}
else
{
cnt = GXDLMS.AppendMultipleSNBlocks(p, null, reply);
}
}
// Add data.
reply.Set(p.data, cnt);
//Af all data is transfered.
if (p.data != null && p.data.Position == p.data.Size)
{
p.settings.Index = p.settings.Count = 0;
}
// If Ciphering is used.
if (ciphering && p.command != Command.Aarq && p.command != Command.Aare)
{
byte[] tmp = p.settings.Cipher.Encrypt((byte)GetGloMessage(p.command), p.settings.Cipher.SystemTitle, reply.Array());
System.Diagnostics.Debug.Assert(!(p.settings.MaxPduSize < tmp.Length));
reply.Size = 0;
if (p.settings.InterfaceType == InterfaceType.HDLC)
{
if (p.settings.IsServer)
{
reply.Set(GXCommon.LLCReplyBytes);
}
else if (reply.Size == 0)
{
reply.Set(GXCommon.LLCSendBytes);
}
}
reply.Set(tmp);
}
}
/// <summary>
/// Convert HDLC address to bytes.
/// </summary>
/// <param name="value"></param>
/// <param name="size">Address size in bytes.</param>
/// <returns></returns>
private static byte[] GetHdlcAddressBytes(int value, byte size)
{
Object tmp = GetHhlcAddress(value, size);
GXByteBuffer bb = new GXByteBuffer();
if (tmp is byte)
{
bb.SetUInt8((byte)tmp);
}
else if (tmp is UInt16)
{
bb.SetUInt16((UInt16)tmp);
}
else if (tmp is UInt32)
{
bb.SetUInt32((UInt32)tmp);
}
else
{
throw new ArgumentException("Invalid address type.");
}
return bb.Array();
}
/// <summary>
/// Generates data notification message.
/// </summary>
/// <param name="time">Date time. Set To Min or Max if not added</param>
/// <param name="objects">List of objects and attribute indexes to notify.</param>
/// <returns>Generated data notification message(s).</returns>
public byte[][] GenerateDataNotificationMessages(DateTime time, List<KeyValuePair<GXDLMSObject, int>> objects)
{
if (objects == null)
{
throw new ArgumentNullException("objects");
}
GXByteBuffer buff = new GXByteBuffer();
buff.SetUInt8(DataType.Structure);
GXCommon.SetObjectCount(objects.Count, buff);
foreach (KeyValuePair<GXDLMSObject, int> it in objects)
{
AddData(it.Key, it.Value, buff);
}
byte[][] reply;
if (UseLogicalNameReferencing)
{
GXDLMSLNParameters p = new GXDLMSLNParameters(Settings, Command.DataNotification, 0, null, buff, 0xff);
p.time = time;
reply = GXDLMS.GetLnMessages(p);
}
else
{
GXDLMSSNParameters p = new GXDLMSSNParameters(Settings, Command.DataNotification, 1, 0, buff, null);
reply = GXDLMS.GetSnMessages(p);
}
return reply;
}
/// <summary>
/// Removes X.509 v3 certificate from the server using serial number.
/// </summary>
/// <param name="client">DLMS client that is used to generate action.</param>
/// <param name="serialNumber">Serial number.</param>
/// <param name="issuer">Issuer.</param>
/// <returns>Generated action.</returns>
public byte[][] RemoveCertificateBySerial(GXDLMSClient client, byte[] serialNumber, byte[] issuer)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
//Add enum
bb.SetUInt8(DataType.Enum);
bb.SetUInt8(1);
//Add certificate_identification_by_entity
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
//serialNumber
GXCommon.SetData(client.Settings, bb, DataType.OctetString, serialNumber);
//issuer
GXCommon.SetData(client.Settings, bb, DataType.OctetString, issuer);
return client.Method(this, 8, bb.Array(), DataType.OctetString);
}
/// <summary>
/// Agree on one or more symmetric keys using the key agreement algorithm.
/// </summary>
/// <param name="client"> DLMS client that is used to generate action.</param>
/// <param name="list"> List of keys.</param>
/// <returns>Generated action.</returns>
public byte[][] keyAgreement(GXDLMSClient client, List<KeyValuePair<GlobalKeyType, byte[]>> list)
{
if (list == null || list.Count == 0)
{
throw new ArgumentException("Invalid list. It is empty.");
}
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Array);
bb.SetUInt8((byte)list.Count);
foreach (KeyValuePair<GlobalKeyType, byte[]> it in list)
{
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
GXCommon.SetData(client.Settings, bb, DataType.Enum, it.Key);
GXCommon.SetData(client.Settings, bb, DataType.OctetString, it.Value);
}
return client.Method(this, 3, bb.Array(), DataType.Array);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return (byte)Mode;
}
if (e.Index == 3)
{
return (byte)Speed;
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (PrimaryAddresses == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)PrimaryAddresses.Length);
foreach (byte it in PrimaryAddresses)
{
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt8(it);
}
}
return data.Array();
}
if (e.Index == 5)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (Tabis == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)Tabis.Length);
foreach (sbyte it in Tabis)
{
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt8((byte)it);
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
///<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);
}
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 action request.
///</summary>
///<param name="Reply">
/// Received data from the client.
///</param>
///<returns>
///Reply.
///</returns>
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();
// 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, GXDLMSObject.ToLogicalName(ln));
if (!settings.Connected && (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, GXDLMSObject.ToLogicalName(ln));
}
if (obj == null)
{
// Device reports a undefined object.
error = ErrorCode.UndefinedObject;
}
else
{
if (obj.GetMethodAccess(id) == MethodAccessMode.NoAccess)
{
error = ErrorCode.ReadWriteDenied;
}
else
{
ValueEventArgs e = new ValueEventArgs(settings, obj, id, 0, parameters);
server.NotifyAction(new ValueEventArgs[] { e });
byte[] actionReply;
if (e.Handled)
{
actionReply = (byte[])e.Value;
}
else
{
actionReply = (obj as IGXDLMSBase).Invoke(settings, 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, GXCommon.GetValueType(actionReply), actionReply);
}
else
{
error = e.Error;
//Add return parameters
bb.SetUInt8(0);
}
}
}
GXDLMSLNParameters p = new GXDLMSLNParameters(settings, Command.MethodResponse, 1, null, bb, (byte)error);
GXDLMS.GetLNPdu(p, replyData);
//If High level authentication fails.
if (!settings.Connected && obj is GXDLMSAssociationLogicalName && id == 1)
{
server.NotifyInvalidConnection(connectionInfo);
}
}
///<summary>
///Parse SNRM Request. If server do not accept client empty byte array is returned.
/// </summary>
///<returns>
///Returns returned UA packet.
///</returns>
private byte[][] HandleSnrmRequest()
{
GXByteBuffer bb = new GXByteBuffer(25);
bb.SetUInt8(0x81); // FromatID
bb.SetUInt8(0x80); // GroupID
bb.SetUInt8(0); // Length
bb.SetUInt8(HDLCInfo.MaxInfoTX);
bb.SetUInt8(GXCommon.GetSize(Limits.MaxInfoTX));
bb.Add(Limits.MaxInfoTX);
bb.SetUInt8(HDLCInfo.MaxInfoRX);
bb.SetUInt8(GXCommon.GetSize(Limits.MaxInfoRX));
bb.Add(Limits.MaxInfoRX);
bb.SetUInt8(HDLCInfo.WindowSizeTX);
bb.SetUInt8(GXCommon.GetSize(Limits.WindowSizeTX));
bb.Add(Limits.WindowSizeTX);
bb.SetUInt8(HDLCInfo.WindowSizeRX);
bb.SetUInt8(GXCommon.GetSize(Limits.WindowSizeRX));
bb.Add(Limits.WindowSizeRX);
bb.SetUInt8(2, (byte)(bb.Size - 3));
return(GXDLMS.SplitToHdlcFrames(Settings, (byte)Command.Ua, bb));
}
///<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]);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(3);
GXCommon.SetData(settings, bb, DataType.OctetString, SystemTitle);
GXCommon.SetData(settings, bb, DataType.UInt16, MacAddress);
GXCommon.SetData(settings, bb, DataType.UInt8, LSapSelector);
return bb.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
//LN
if (Target != null)
{
GXCommon.SetData(settings, data, DataType.OctetString, Target.LogicalName);
}
else
{
#pragma warning disable CS0618
GXCommon.SetData(settings, data, DataType.OctetString, ExecutedScriptLogicalName);
#pragma warning restore CS0618
}
GXCommon.SetData(settings, data, DataType.UInt16, ExecutedScriptSelector);
return data.Array();
}
if (e.Index == 3)
{
return this.Type;
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (ExecutionTime == null)
{
GXCommon.SetObjectCount(0, data);
}
else
{
GXCommon.SetObjectCount(ExecutionTime.Length, data);
foreach (GXDateTime it in ExecutionTime)
{
data.SetUInt8((byte)DataType.Structure);
//Count
data.SetUInt8((byte)2);
//Time
GXCommon.SetData(settings, data, DataType.OctetString, new GXTime(it));
//Date
GXCommon.SetData(settings, data, DataType.OctetString, new GXDate(it));
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
///
///<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]);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return Value;
}
if (e.Index == 3)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.Int8, scaler);
GXCommon.SetData(settings, data, DataType.Enum, Unit);
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
else if (e.Index == 2)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(3);
if (MonitoredValue == null)
{
GXCommon.SetData(settings, data, DataType.Int16, 0);
GXCommon.SetData(settings, data, DataType.OctetString, "0.0.0.0.0.0");
GXCommon.SetData(settings, data, DataType.UInt8, 0);
}
else
{
GXCommon.SetData(settings, data, DataType.Int16, MonitoredValue.ObjectType);
GXCommon.SetData(settings, data, DataType.OctetString, MonitoredValue.LogicalName);
GXCommon.SetData(settings, data, DataType.UInt8, MonitoredAttributeIndex);
}
return data.Array();
}
else if (e.Index == 3)
{
return ThresholdActive;
}
else if (e.Index == 4)
{
return ThresholdNormal;
}
else if (e.Index == 5)
{
return ThresholdEmergency;
}
else if (e.Index == 6)
{
return MinOverThresholdDuration;
}
else if (e.Index == 7)
{
return MinUnderThresholdDuration;
}
else if (e.Index == 8)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(3);
GXCommon.SetData(settings, data, DataType.UInt16, EmergencyProfile.ID);
GXCommon.SetData(settings, data, DataType.OctetString, EmergencyProfile.ActivationTime);
GXCommon.SetData(settings, data, DataType.UInt32, EmergencyProfile.Duration);
return data.Array();
}
else if (e.Index == 9)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (EmergencyProfileGroupIDs == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)EmergencyProfileGroupIDs.Length);
foreach (object it in EmergencyProfileGroupIDs)
{
GXCommon.SetData(settings, data, DataType.UInt16, it);
}
}
return data.Array();
}
else if (e.Index == 10)
{
return EmergencyProfileActive;
}
else if (e.Index == 11)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.OctetString, ActionOverThreshold.LogicalName);
GXCommon.SetData(settings, data, DataType.UInt16, ActionOverThreshold.ScriptSelector);
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.OctetString, ActionUnderThreshold.LogicalName);
GXCommon.SetData(settings, data, DataType.UInt16, ActionUnderThreshold.ScriptSelector);
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
public static void HandleGetRequest(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
{
//Return error if connection is not established.
if (xml == null && !settings.Connected)
{
replyData.Set(GXDLMSServer.GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError,
ServiceError.Service, (byte)Service.Unsupported));
return;
}
GetCommandType type = (GetCommandType)data.GetUInt8();
// Get invoke ID and priority.
byte invokeID = data.GetUInt8();
if (xml != null)
{
xml.AppendStartTag(Command.GetRequest);
xml.AppendStartTag(Command.GetRequest, type);
xml.AppendLine(TranslatorTags.InvokeId, "Value", xml.IntegerToHex(invokeID, 2));
}
// GetRequest normal
if (type == GetCommandType.Normal)
{
GetRequestNormal(settings, server, data, replyData, xml);
}
else if (type == GetCommandType.NextDataBlock)
{
// Get request for next data block
GetRequestNextDataBlock(settings, server, data, replyData, xml);
}
else if (type == GetCommandType.WithList)
{
// Get request with a list.
GetRequestWithList(settings, server, data, replyData, xml);
}
else
{
Debug.WriteLine("HandleGetRequest failed. Invalid command type.");
settings.ResetBlockIndex();
GXByteBuffer bb = new GXByteBuffer();
// Access Error : Device reports a hardware fault.
bb.SetUInt8((byte)ErrorCode.HardwareFault);
GXDLMS.GetLNPdu(new GXDLMSLNParameters(settings, Command.GetResponse, (byte)type, null, bb, (byte)ErrorCode.Ok), replyData);
}
if (xml != null)
{
xml.AppendEndTag(Command.GetRequest, type);
xml.AppendEndTag(Command.GetRequest);
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
data.SetUInt8((byte)Entries.Count);
/*
foreach (GXScheduleEntry it in Entries)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(10);
//Add index.
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt8(it.Index);
//Add enable.
data.SetUInt8((byte)DataType.Boolean);
data.SetUInt8((byte) (it.Enable ? 1 : 0));
//Add logical Name.
data.SetUInt8((byte)DataType.OctetString);
data.SetUInt8((byte) it.LogicalName.Length);
//TODO: data.SetUInt8((byte)it.LogicalName.Length);
//Add script selector.
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt8(it.ScriptSelector);
//Add switch time.
ret = var_setDateTime(&tmp, &se->switchTime);
if (ret != 0)
{
var_clear(&tmp);
break;
}
ret = var_getBytes(&tmp, &value->byteArr);
var_clear(&tmp);
if (ret != 0)
{
break;
}
//Add validity window.
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt8(it.ValidityWindow);
//Add exec week days.
ba_setUInt8(&value->byteArr, DLMS_DATA_TYPE_BIT_STRING);
setObjectCount(se->execWeekdays.size, &value->byteArr);
ba_addRange(&value->byteArr, se->execWeekdays.data, bit_getByteCount(se->execWeekdays.size));
//Add exec spec days.
ba_setUInt8(&value->byteArr, DLMS_DATA_TYPE_BIT_STRING);
setObjectCount(se->execSpecDays.size, &value->byteArr);
ba_addRange(&value->byteArr, se->execSpecDays.data, bit_getByteCount(se->execSpecDays.size));
//Add begin date.
ret = var_setDateTime(&tmp, &se->beginDate);
if (ret != 0)
{
var_clear(&tmp);
break;
}
ret = var_getBytes(&tmp, &value->byteArr);
var_clear(&tmp);
if (ret != 0)
{
break;
}
//Add end date.
ret = var_setDateTime(&tmp, &se->endDate);
if (ret != 0)
{
var_clear(&tmp);
break;
}
ret = var_getBytes(&tmp, &value->byteArr);
var_clear(&tmp);
if (ret != 0)
{
break;
}
}
* */
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
int cnt = 0;
if (SapAssignmentList != null)
{
cnt = SapAssignmentList.Count;
}
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
//Add count
GXCommon.SetObjectCount(cnt, data);
if (cnt != 0)
{
foreach (var it in SapAssignmentList)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2); //Count
GXCommon.SetData(settings, data, DataType.UInt16, it.Key);
GXCommon.SetData(settings, data, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(it.Value));
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
public byte[][] ImageTransferInitiate(GXDLMSClient client, string imageIdentifier, long imageSize)
{
if (ImageBlockSize == 0)
{
throw new Exception("Invalid image block size");
}
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2);
GXCommon.SetData(client.Settings, data, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(imageIdentifier));
GXCommon.SetData(client.Settings, data, DataType.UInt32, imageSize);
return client.Method(this, 1, data.Array(), DataType.Array);
}
/// <summary>
/// Removes X.509 v3 certificate from the server using entity.
/// </summary>
/// <param name="client">DLMS client that is used to generate action.</param>
/// <param name="entity">Certificate entity type.</param>
/// <param name="type">Certificate type.</param>
/// <param name="systemTitle">System title.</param>
/// <returns>Generated action.</returns>
public byte[][] RemoveCertificateByEntity(GXDLMSClient client, CertificateEntity entity, CertificateType type, byte[] systemTitle)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
//Add enum
bb.SetUInt8(DataType.Enum);
bb.SetUInt8(0);
//Add certificate_identification_by_entity
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(3);
//Add certificate_entity
bb.SetUInt8(DataType.Enum);
bb.SetUInt8(entity);
//Add certificate_type
bb.SetUInt8(DataType.Enum);
bb.SetUInt8(type);
//system_title
GXCommon.SetData(client.Settings, bb, DataType.OctetString, systemTitle);
return client.Method(this, 8, bb.Array(), DataType.OctetString);
}
public byte[][] ImageBlockTransfer(GXDLMSClient client, byte[] imageBlockValue, out int ImageBlockCount)
{
ImageBlockCount = (int)(imageBlockValue.Length / ImageBlockSize);
if (imageBlockValue.Length % ImageBlockSize != 0)
{
++ImageBlockCount;
}
List<byte[]> packets = new List<byte[]>();
for (int pos = 0; pos != ImageBlockCount; ++pos)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2);
GXCommon.SetData(client.Settings, data, DataType.UInt32, pos);
byte[] tmp;
int bytes = (int)(imageBlockValue.Length - ((pos + 1) * ImageBlockSize));
//If last packet
if (bytes < 0)
{
bytes = (int)(imageBlockValue.Length - (pos * ImageBlockSize));
tmp = new byte[bytes];
Array.Copy(imageBlockValue, pos * ImageBlockSize, tmp, 0, bytes);
}
else
{
tmp = new byte[ImageBlockSize];
Array.Copy(imageBlockValue, (pos * ImageBlockSize), tmp, 0, ImageBlockSize);
}
GXCommon.SetData(client.Settings, data, DataType.OctetString, tmp);
packets.AddRange(client.Method(this, 2, data.Array(), DataType.Array));
}
return packets.ToArray();
}
/// <summary>
/// Get sertificates as byte buffer.
/// </summary>
/// <returns></returns>
private byte[] GetSertificates()
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
GXCommon.SetObjectCount(Certificates.Count, bb);
foreach (GXDLMSCertificateInfo it in Certificates)
{
bb.SetUInt8((byte)DataType.Structure);
GXCommon.SetObjectCount(6, bb);
bb.SetUInt8((byte)DataType.Enum);
bb.SetUInt8((byte)it.Entity);
bb.SetUInt8((byte)DataType.Enum);
bb.SetUInt8((byte)it.Type);
GXCommon.AddString(it.SerialNumber, bb);
GXCommon.AddString(it.Issuer, bb);
GXCommon.AddString(it.Subject, bb);
GXCommon.AddString(it.SubjectAltName, bb);
}
return bb.Array();
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return ImageBlockSize;
}
if (e.Index == 3)
{
return ImageTransferredBlocksStatus;
}
if (e.Index == 4)
{
return ImageFirstNotTransferredBlockNumber;
}
if (e.Index == 5)
{
return ImageTransferEnabled;
}
if (e.Index == 6)
{
return ImageTransferStatus;
}
if (e.Index == 7)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (ImageActivateInfo == null)
{
GXCommon.SetObjectCount(0, data);
}
else
{
GXCommon.SetObjectCount(ImageActivateInfo.Length, data);
foreach (GXDLMSImageActivateInfo it in ImageActivateInfo)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(3);
GXCommon.SetData(settings, data, DataType.UInt32, it.Size);
GXCommon.SetData(settings, data, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(Convert.ToString(it.Identification)));
if (it.Signature == null || it.Signature.Length == 0)
{
GXCommon.SetData(settings, data, DataType.OctetString, null);
}
else
{
GXCommon.SetData(settings, data, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(it.Signature));
}
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
/// <summary>
/// Generates push setup message.
/// </summary>
/// <param name="date"> Date time. Set To Min or Max if not added.</param>
/// <param name="push">Target Push object.</param>
/// <returns>Generated data notification message(s).</returns>
public byte[][] GeneratePushSetupMessages(DateTime date, GXDLMSPushSetup push)
{
if (push == null)
{
throw new ArgumentNullException("push");
}
GXByteBuffer buff = new GXByteBuffer();
buff.SetUInt8((byte)DataType.Structure);
GXCommon.SetObjectCount(push.PushObjectList.Count, buff);
foreach (KeyValuePair<GXDLMSObject, GXDLMSCaptureObject> it in push.PushObjectList)
{
AddData(it.Key, it.Value.AttributeIndex, buff);
}
return GenerateDataNotificationMessages(date, buff);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
else if (e.Index == 2)
{
return InitiatorElectricalPhase;
}
else if (e.Index == 3)
{
return DeltaElectricalPhase;
}
else if (e.Index == 4)
{
return MaxReceivingGain;
}
else if (e.Index == 5)
{
return MaxTransmittingGain;
}
else if (e.Index == 6)
{
return SearchInitiatorThreshold;
}
else if (e.Index == 7)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
GXCommon.SetData(settings, bb, DataType.UInt32, MarkFrequency);
GXCommon.SetData(settings, bb, DataType.UInt32, SpaceFrequency);
return bb.Array();
}
else if (e.Index == 8)
{
return MacAddress;
}
else if (e.Index == 9)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Array);
if (MacGroupAddresses == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(MacGroupAddresses.Length, bb);
foreach (UInt16 it in MacGroupAddresses)
{
GXCommon.SetData(settings, bb, DataType.UInt16, it);
}
}
return bb.Array();
}
else if (e.Index == 10)
{
return Repeater;
}
else if (e.Index == 11)
{
return RepeaterStatus;
}
else if (e.Index == 12)
{
return MinDeltaCredit;
}
else if (e.Index == 13)
{
return InitiatorMacAddress;
}
else if (e.Index == 14)
{
return SynchronizationLocked;
}
else if (e.Index == 15)
{
return TransmissionSpeed;
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
///<summary>
///Parse SNRM Request. If server do not accept client empty byte array is returned.
/// </summary>
///<returns>
///Returns returned UA packet.
///</returns>
private void HandleSnrmRequest()
{
Reset(true);
replyData.SetUInt8(0x81); // FromatID
replyData.SetUInt8(0x80); // GroupID
replyData.SetUInt8(0); // Length
replyData.SetUInt8(HDLCInfo.MaxInfoTX);
replyData.SetUInt8(GXCommon.GetSize(Limits.MaxInfoTX));
replyData.Add(Limits.MaxInfoTX);
replyData.SetUInt8(HDLCInfo.MaxInfoRX);
replyData.SetUInt8(GXCommon.GetSize(Limits.MaxInfoRX));
replyData.Add(Limits.MaxInfoRX);
replyData.SetUInt8(HDLCInfo.WindowSizeTX);
replyData.SetUInt8(GXCommon.GetSize(Limits.WindowSizeTX));
replyData.Add(Limits.WindowSizeTX);
replyData.SetUInt8(HDLCInfo.WindowSizeRX);
replyData.SetUInt8(GXCommon.GetSize(Limits.WindowSizeRX));
replyData.Add(Limits.WindowSizeRX);
replyData.SetUInt8(2, (byte)(replyData.Size - 3));
}
/// <summary>
/// Handle read Block in blocks.
/// </summary>
/// <param name="data">Received data.</param>
private static void HandleReadBlockNumberAccess(GXDLMSSettings settings, GXDLMSServer server, GXByteBuffer data, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
{
UInt16 blockNumber = data.GetUInt16();
if (xml != null)
{
xml.AppendStartTag(Command.ReadRequest, VariableAccessSpecification.BlockNumberAccess);
xml.AppendLine("<BlockNumber Value=\"" + xml.IntegerToHex(blockNumber, 4) + "\" />");
xml.AppendEndTag(Command.ReadRequest, VariableAccessSpecification.BlockNumberAccess);
return;
}
if (blockNumber != settings.BlockIndex)
{
GXByteBuffer bb = new GXByteBuffer();
Debug.WriteLine("handleReadRequest failed. Invalid block number. " + settings.BlockIndex + "/" + blockNumber);
bb.SetUInt8(ErrorCode.DataBlockNumberInvalid);
GXDLMS.GetSNPdu(new GXDLMSSNParameters(settings, Command.ReadResponse, 1, (byte)SingleReadResponse.DataAccessError, bb, null), replyData);
settings.ResetBlockIndex();
return;
}
if (settings.Index != settings.Count && server.transaction.data.Size < settings.MaxPduSize)
{
List <ValueEventArgs> reads = new List <ValueEventArgs>();
List <ValueEventArgs> actions = new List <ValueEventArgs>();
foreach (ValueEventArgs it in server.transaction.targets)
{
if (it.action)
{
actions.Add(it);
}
else
{
reads.Add(it);
}
}
if (reads.Count != 0)
{
server.NotifyRead(reads.ToArray());
}
if (actions.Count != 0)
{
server.NotifyAction(actions.ToArray());
}
GetReadData(settings, server.transaction.targets, server.transaction.data);
if (reads.Count != 0)
{
server.NotifyPostRead(reads.ToArray());
}
if (actions.Count != 0)
{
server.NotifyPostAction(actions.ToArray());
}
}
settings.IncreaseBlockIndex();
GXDLMSSNParameters p = new GXDLMSSNParameters(settings, Command.ReadResponse, 1,
(byte)SingleReadResponse.DataBlockResult, null, server.transaction.data);
p.multipleBlocks = true;
GXDLMS.GetSNPdu(p, replyData);
//If all data is sent.
if (server.transaction.data.Size == server.transaction.data.Position)
{
server.transaction = null;
settings.ResetBlockIndex();
}
else
{
server.transaction.data.Trim();
}
}
static int AppendMultipleSNBlocks(GXDLMSSNParameters p, GXByteBuffer header, GXByteBuffer reply)
{
bool ciphering = p.settings.Cipher != null && p.settings.Cipher.Security != Gurux.DLMS.Enums.Security.None;
int hSize = reply.Size + 3;
if (header != null)
{
hSize += header.Size;
}
//Add LLC bytes.
if (p.command == Command.WriteRequest ||
p.command == Command.ReadRequest)
{
hSize += 1 + GXCommon.GetObjectCountSizeInBytes(p.count);
}
int maxSize = p.settings.MaxPduSize - hSize;
if (ciphering)
{
maxSize -= CipheringHeaderSize;
if (p.settings.InterfaceType == InterfaceType.HDLC)
{
maxSize -= 3;
}
}
maxSize -= GXCommon.GetObjectCountSizeInBytes(maxSize);
if (p.data.Size - p.data.Position > maxSize)
{
//More blocks.
reply.SetUInt8(0);
}
else
{
//Last block.
reply.SetUInt8(1);
maxSize = p.data.Size - p.data.Position;
}
//Add block index.
reply.SetUInt16(p.blockIndex);
if (p.command == Command.WriteRequest)
{
++p.blockIndex;
GXCommon.SetObjectCount(p.count, reply);
reply.SetUInt8(DataType.OctetString);
}
if (p.command == Command.ReadRequest)
{
++p.blockIndex;
}
if (header != null)
{
GXCommon.SetObjectCount(maxSize + header.Size, reply);
reply.Set(header);
}
else
{
GXCommon.SetObjectCount(maxSize, reply);
}
return maxSize;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return (byte)Mode;
}
if (e.Index == 3)
{
return Repetitions;
}
if (e.Index == 4)
{
return RepetitionDelay;
}
if (e.Index == 5)
{
int cnt = CallingWindow.Count;
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
//Add count
GXCommon.SetObjectCount(cnt, data);
if (cnt != 0)
{
foreach (var it in CallingWindow)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2); //Count
GXCommon.SetData(settings, data, DataType.OctetString, it.Key); //start_time
GXCommon.SetData(settings, data, DataType.OctetString, it.Value); //end_time
}
}
return data.Array();
}
if (e.Index == 6)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (Destinations == null)
{
//Add count
GXCommon.SetObjectCount(0, data);
}
else
{
int cnt = Destinations.Length;
//Add count
GXCommon.SetObjectCount(cnt, data);
foreach (string it in Destinations)
{
GXCommon.SetData(settings, data, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(it)); //destination
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return PHYReference;
}
if (e.Index == 3)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (LCPOptions == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)IPCPOptions.Length);
foreach (GXDLMSPppSetupLcpOption it in LCPOptions)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)3);
GXCommon.SetData(settings, data, DataType.UInt8, it.Type);
GXCommon.SetData(settings, data, DataType.UInt8, it.Length);
GXCommon.SetData(settings, data, GXCommon.GetValueType(it.Data), it.Data);
}
}
return data.Array();
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (IPCPOptions == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)IPCPOptions.Length);
foreach (GXDLMSPppSetupIPCPOption it in IPCPOptions)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)3);
GXCommon.SetData(settings, data, DataType.UInt8, it.Type);
GXCommon.SetData(settings, data, DataType.UInt8, it.Length);
GXCommon.SetData(settings, data, GXCommon.GetValueType(it.Data), it.Data);
}
}
return data.Array();
}
else if (e.Index == 5)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.OctetString, UserName);
GXCommon.SetData(settings, data, DataType.OctetString, Password);
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
///<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;
}
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
return this.CurrentAverageValue;
}
if (e.Index == 3)
{
return this.LastAverageValue;
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.Int8, _scaler);
GXCommon.SetData(settings, data, DataType.Enum, Unit);
return data.Array();
}
if (e.Index == 5)
{
return this.Status;
}
if (e.Index == 6)
{
return CaptureTime;
}
if (e.Index == 7)
{
return StartTimeCurrent;
}
if (e.Index == 8)
{
return Period;
}
if (e.Index == 9)
{
return NumberOfPeriods;
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
/// <summary>
/// Get next logical name PDU.
/// </summary>
/// <param name="p">LN parameters.</param>
/// <param name="reply">Generated message.</param>
internal static void GetLNPdu(GXDLMSLNParameters p, GXByteBuffer reply)
{
bool ciphering = p.settings.Cipher != null && p.settings.Cipher.Security != Gurux.DLMS.Enums.Security.None;
int len = 0;
if (!ciphering && p.settings.InterfaceType == InterfaceType.HDLC)
{
AddLLCBytes(p.settings, reply);
}
if (p.command == Command.Aarq)
{
reply.Set(p.attributeDescriptor);
}
else
{
if (p.settings.LnSettings.GeneralBlockTransfer)
{
reply.SetUInt8((byte)Command.GeneralBlockTransfer);
MultipleBlocks(p, reply, ciphering);
// Is last block
if (!p.lastBlock)
{
reply.SetUInt8(0);
}
else
{
reply.SetUInt8(0x80);
}
// Set block number sent.
reply.SetUInt8(0);
// Set block number acknowledged
reply.SetUInt8((byte)p.blockIndex);
++p.blockIndex;
// Add APU tag.
reply.SetUInt8(0);
// Add Addl fields
reply.SetUInt8(0);
}
// Add command.
reply.SetUInt8((byte)p.command);
if (p.command == Command.DataNotification ||
p.command == Command.AccessRequest ||
p.command == Command.AccessResponse)
{
// Add Long-Invoke-Id-And-Priority
reply.SetUInt32(GetLongInvokeIDPriority(p.settings));
// Add date time.
if (p.time == null || p.time.Value.DateTime == DateTime.MinValue || p.time.Value.DateTime == DateTime.MaxValue ||
p.time.Value.LocalDateTime == DateTime.MinValue || p.time.Value.LocalDateTime == DateTime.MaxValue)
{
reply.SetUInt8(DataType.None);
}
else
{
// Data is send in octet string. Remove data type.
int pos = reply.Size;
GXCommon.SetData(p.settings, reply, DataType.OctetString, p.time);
reply.Move(pos + 1, pos, reply.Size - pos - 1);
}
}
else
{
//Get request size can be bigger than PDU size.
if (p.command != Command.GetRequest &&
p.data != null && p.data.Size != 0)
{
MultipleBlocks(p, reply, ciphering);
}
//Change Request type if Set request and multiple blocks is needed.
if (p.command == Command.SetRequest)
{
if (p.multipleBlocks)
{
if (p.requestType == 1)
{
p.requestType = 2;
}
else if (p.requestType == 2)
{
p.requestType = 3;
}
}
}
//Change request type If get response and multiple blocks is needed.
if (p.command == Command.GetResponse)
{
if (p.multipleBlocks)
{
if (p.requestType == 1)
{
p.requestType = 2;
}
}
}
reply.SetUInt8(p.requestType);
// Add Invoke Id And Priority.
reply.SetUInt8(GetInvokeIDPriority(p.settings));
}
//Add attribute descriptor.
reply.Set(p.attributeDescriptor);
if (p.command != Command.DataNotification && !p.settings.LnSettings.GeneralBlockTransfer)
{
//If multiple blocks.
if (p.multipleBlocks)
{
// Is last block.
if (p.lastBlock)
{
reply.SetUInt8(1);
p.settings.Count = p.settings.Index = 0;
}
else
{
reply.SetUInt8(0);
}
// Block index.
reply.SetUInt32(p.blockIndex);
++p.blockIndex;
//Add status if reply.
if (p.status != 0xFF)
{
if (p.status != 0 && p.command == Command.GetResponse)
{
reply.SetUInt8(1);
}
reply.SetUInt8(p.status);
}
//Block size.
if (p.data != null)
{
len = p.data.Size - p.data.Position;
}
else
{
len = 0;
}
int totalLength = len + reply.Size;
if (ciphering)
{
totalLength += CipheringHeaderSize;
}
if (totalLength > p.settings.MaxPduSize)
{
len = p.settings.MaxPduSize - reply.Size - p.data.Position;
if (ciphering)
{
len -= CipheringHeaderSize;
}
len -= GXCommon.GetObjectCountSizeInBytes(len);
}
GXCommon.SetObjectCount(len, reply);
reply.Set(p.data, len);
}
}
//Add data that fits to one block.
if (len == 0)
{
//Add status if reply.
if (p.status != 0xFF)
{
if (p.status != 0 && p.command == Command.GetResponse)
{
reply.SetUInt8(1);
}
reply.SetUInt8(p.status);
}
if (p.data != null && p.data.Size != 0)
{
len = p.data.Size - p.data.Position;
//Get request size can be bigger than PDU size.
if (p.command != Command.GetRequest && len + reply.Size > p.settings.MaxPduSize)
{
len = p.settings.MaxPduSize - reply.Size;
}
reply.Set(p.data, len);
}
}
if (ciphering)
{
byte[] tmp = p.settings.Cipher.Encrypt((byte)GetGloMessage(p.command),
p.settings.Cipher.SystemTitle, reply.Array());
reply.Size = 0;
if (p.settings.InterfaceType == InterfaceType.HDLC)
{
AddLLCBytes(p.settings, reply);
}
if (p.command == Command.DataNotification)
{
// Add command.
reply.SetUInt8(tmp[0]);
// Add system title.
GXCommon.SetObjectCount(
p.settings.Cipher.SystemTitle.Length,
reply);
reply.Set(p.settings.Cipher.SystemTitle);
// Add data.
reply.Set(tmp, 1, tmp.Length - 1);
}
else
{
reply.Set(tmp);
}
}
}
}
/// <summary>
/// Handles release reuest.
/// </summary>
/// <param name="data">Received data.</param>
/// <param name="connectionInfo">Connection info.</param>
private void HandleReleaseRequest(GXByteBuffer data, GXDLMSConnectionEventArgs connectionInfo)
{
//Return error if connection is not established.
if (!Settings.Connected && !Settings.IsAuthenticationRequired && !Settings.AllowAnonymousAccess)
{
replyData.Add(GenerateConfirmedServiceError(ConfirmedServiceError.InitiateError,
ServiceError.Service, (byte)Service.Unsupported));
return;
}
if (Settings.InterfaceType == InterfaceType.HDLC)
{
replyData.Set(0, GXCommon.LLCReplyBytes);
}
replyData.SetUInt8(0x63);
//LEN.
replyData.SetUInt8(0x03);
replyData.SetUInt8(0x80);
replyData.SetUInt8(0x01);
replyData.SetUInt8(0x00);
}
/// <summary>
/// Handle get request with list command.
/// </summary>
/// <param name="data">Received data.</param>
private static void GetRequestWithList(GXDLMSSettings settings, 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.AppendLine(TranslatorTags.ClassId, "Value", xml.IntegerToHex((int)ci, 4));
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, GXDLMSObject.ToLogicalName(ln));
if (obj == null)
{
obj = server.NotifyFindObject(ci, 0, GXDLMSObject.ToLogicalName(ln));
}
if (obj == null)
{
// "Access Error : Device reports a undefined object."
e = new ValueEventArgs(settings, obj, attributeIndex, 0, 0);
e.Error = ErrorCode.UndefinedObject;
list.Add(e);
}
else
{
if (obj.GetAccess(attributeIndex) == AccessMode.NoAccess)
{
//Read Write denied.
ValueEventArgs arg = new ValueEventArgs(settings, obj, attributeIndex, 0, null);
arg.Error = ErrorCode.ReadWriteDenied;
list.Add(arg);
}
else
{
ValueEventArgs arg = new ValueEventArgs(settings, obj, attributeIndex, selector, parameters);
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);
GXDLMS.AppendData(settings, it.Target, it.Index, bb, value);
}
catch (Exception)
{
bb.SetUInt8((byte)ErrorCode.HardwareFault);
}
if (settings.Index != settings.Count)
{
server.transaction = new GXDLMSLongTransaction(list.ToArray(), Command.GetRequest, null);
}
++pos;
}
GXDLMSLNParameters p = new GXDLMSLNParameters(settings, Command.GetResponse, 3, null, bb, 0xFF);
GXDLMS.GetLNPdu(p, replyData);
}
private static void HandleReadDataBlockAccess(
GXDLMSSettings settings, GXDLMSServer server,
Command command, GXByteBuffer data, int cnt, GXByteBuffer replyData, GXDLMSTranslatorStructure xml)
{
GXByteBuffer bb = new GXByteBuffer();
byte lastBlock = data.GetUInt8();
UInt16 blockNumber = data.GetUInt16();
if (xml != null)
{
if (command == Command.WriteResponse)
{
xml.AppendStartTag(TranslatorTags.WriteDataBlockAccess);
}
else
{
xml.AppendStartTag(TranslatorTags.ReadDataBlockAccess);
}
xml.AppendLine("<LastBlock Value=\"" + xml.IntegerToHex(lastBlock, 2) + "\" />");
xml.AppendLine("<BlockNumber Value=\"" + xml.IntegerToHex(blockNumber, 4) + "\" />");
if (command == Command.WriteResponse)
{
xml.AppendEndTag(TranslatorTags.WriteDataBlockAccess);
}
else
{
xml.AppendEndTag(TranslatorTags.ReadDataBlockAccess);
}
return;
}
if (blockNumber != settings.BlockIndex)
{
Debug.WriteLine("handleReadRequest failed. Invalid block number. " + settings.BlockIndex + "/" + blockNumber);
bb.SetUInt8(ErrorCode.DataBlockNumberInvalid);
GXDLMS.GetSNPdu(new GXDLMSSNParameters(settings, command, 1, (byte)SingleReadResponse.DataAccessError, bb, null), replyData);
settings.ResetBlockIndex();
return;
}
int count = 1;
byte type = (byte)DataType.OctetString;
if (command == Command.WriteResponse)
{
count = GXCommon.GetObjectCount(data);
type = data.GetUInt8();
}
int size = GXCommon.GetObjectCount(data);
int realSize = data.Size - data.Position;
if (count != 1 || type != (byte)DataType.OctetString || size != realSize)
{
Debug.WriteLine("handleGetRequest failed. Invalid block size.");
bb.SetUInt8(ErrorCode.DataBlockUnavailable);
GXDLMS.GetSNPdu(new GXDLMSSNParameters(settings, command, cnt, (byte)SingleReadResponse.DataAccessError, bb, null), replyData);
settings.ResetBlockIndex();
return;
}
if (server.transaction == null)
{
server.transaction = new GXDLMSLongTransaction(null, command, data);
}
else
{
server.transaction.data.Set(data);
}
if (lastBlock == 0)
{
bb.SetUInt16(blockNumber);
settings.IncreaseBlockIndex();
if (command == Command.ReadResponse)
{
type = (byte)SingleReadResponse.BlockNumber;
}
else
{
type = (byte)SingleWriteResponse.BlockNumber;
}
GXDLMS.GetSNPdu(new GXDLMSSNParameters(settings, command, cnt, type, null, bb), replyData);
return;
}
else
{
if (server.transaction != null)
{
data.Size = 0;
data.Set(server.transaction.data);
server.transaction = null;
}
if (command == Command.ReadResponse)
{
HandleReadRequest(settings, server, data, replyData, xml);
}
else
{
HandleWriteRequest(settings, server, data, replyData, xml);
}
settings.ResetBlockIndex();
}
}
///<summary>
///Parse AARQ request that client send and returns AARE request.
/// </summary>
///<returns>
///Reply to the client.
///</returns>
private void HandleAarqRequest(GXByteBuffer data, GXDLMSConnectionEventArgs connectionInfo)
{
GXByteBuffer error = null;
AssociationResult result = AssociationResult.Accepted;
Settings.CtoSChallenge = null;
if (!Settings.UseCustomChallenge)
{
Settings.StoCChallenge = null;
}
// Reset settings for wrapper.
if (Settings.InterfaceType == InterfaceType.WRAPPER)
{
Reset(true);
}
SourceDiagnostic diagnostic = SourceDiagnostic.NoReasonGiven;
try
{
diagnostic = GXAPDU.ParsePDU(Settings, Settings.Cipher, data, null);
if (diagnostic != SourceDiagnostic.None)
{
result = AssociationResult.PermanentRejected;
diagnostic = SourceDiagnostic.ApplicationContextNameNotSupported;
InvalidConnection(connectionInfo);
}
else
{
diagnostic = ValidateAuthentication(Settings.Authentication, Settings.Password);
if (diagnostic != SourceDiagnostic.None)
{
result = AssociationResult.PermanentRejected;
InvalidConnection(connectionInfo);
}
else if (Settings.Authentication > Authentication.Low)
{
// If High authentication is used.
if (!Settings.UseCustomChallenge)
{
Settings.StoCChallenge = GXSecure.GenerateChallenge(Settings.Authentication);
}
result = AssociationResult.Accepted;
diagnostic = SourceDiagnostic.AuthenticationRequired;
}
else
{
Connected(connectionInfo);
Settings.Connected = true;
}
}
Settings.IsAuthenticationRequired = diagnostic == SourceDiagnostic.AuthenticationRequired;
}
catch (GXDLMSConfirmedServiceError e)
{
result = AssociationResult.PermanentRejected;
diagnostic = SourceDiagnostic.NoReasonGiven;
error = new GXByteBuffer();
error.SetUInt8(0xE);
error.SetUInt8(e.ConfirmedServiceError);
error.SetUInt8(e.ServiceError);
error.SetUInt8(e.ServiceErrorValue);
}
if (Settings.InterfaceType == Enums.InterfaceType.HDLC)
{
replyData.Set(GXCommon.LLCReplyBytes);
}
// Generate AARE packet.
GXAPDU.GenerateAARE(Settings, replyData, result, diagnostic, Settings.Cipher, error, null);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return this.LogicalName;
}
if (e.Index == 2)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (Entries == null)
{
data.SetUInt8(0);
}
else
{
int cnt = Entries.Length;
//Add count
GXCommon.SetObjectCount(cnt, data);
if (cnt != 0)
{
foreach (GXDLMSSpecialDay it in Entries)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)3); //Count
GXCommon.SetData(settings, data, DataType.UInt16, it.Index);
GXCommon.SetData(settings, data, DataType.OctetString, it.Date);
GXCommon.SetData(settings, data, DataType.UInt8, it.DayId);
}
}
}
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
private byte[] ReportError(Command cmd, ErrorCode error)
{
switch (cmd)
{
case Command.ReadRequest:
cmd = Command.ReadResponse;
break;
case Command.WriteRequest:
cmd = Command.WriteResponse;
break;
case Command.GetRequest:
cmd = Command.GetResponse;
break;
case Command.SetRequest:
cmd = Command.SetResponse;
break;
case Command.MethodRequest:
cmd = Command.MethodResponse;
break;
default:
//Return HW error and close connection..
break;
}
if (Settings.UseLogicalNameReferencing)
{
GXDLMS.GetLNPdu(new GXDLMSLNParameters(Settings, cmd, 1, null, null, (byte)error), replyData);
}
else
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(error);
GXDLMSSNParameters p = new GXDLMSSNParameters(Settings, cmd, 1, (byte)error, null, bb);
GXDLMS.GetSNPdu(p, replyData);
}
if (this.InterfaceType == Enums.InterfaceType.WRAPPER)
{
return GXDLMS.GetWrapperFrame(Settings, replyData);
}
else
{
return GXDLMS.GetHdlcFrame(Settings, 0, replyData);
}
}
/// <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>
/// Get HDLC frame for data.
/// </summary>
/// <param name="settings">DLMS settings.</param>
/// <param name="frame">Frame ID. If zero new is generated.</param>
/// <param name="data">Data to add.</param>
/// <returns>HDLC frames.</returns>
internal static byte[] GetHdlcFrame(GXDLMSSettings settings, byte frame, GXByteBuffer data)
{
GXByteBuffer bb = new GXByteBuffer();
int frameSize, len = 0;
byte[] primaryAddress, secondaryAddress;
if (settings.IsServer)
{
primaryAddress = GetHdlcAddressBytes(settings.ClientAddress, 0);
secondaryAddress = GetHdlcAddressBytes(settings.ServerAddress, settings.ServerAddressSize);
}
else
{
primaryAddress = GetHdlcAddressBytes(settings.ServerAddress, settings.ServerAddressSize);
secondaryAddress = GetHdlcAddressBytes(settings.ClientAddress, 0);
}
// Add BOP
bb.SetUInt8(GXCommon.HDLCFrameStartEnd);
frameSize = Convert.ToInt32(settings.Limits.MaxInfoTX);
// If no data
if (data == null || data.Size == 0)
{
bb.SetUInt8(0xA0);
}
else if (data.Size - data.Position <= frameSize)
{
// Is last packet.
bb.SetUInt8(0xA0);
len = data.Size - data.Position;
}
else
{
// More data to left.
bb.SetUInt8(0xA8);
len = frameSize;
}
//Frame len.
if (len == 0)
{
bb.SetUInt8((byte)(5 + primaryAddress.Length + secondaryAddress.Length + len));
}
else
{
bb.SetUInt8((byte)(7 + primaryAddress.Length + secondaryAddress.Length + len));
}
// Add primary address.
bb.Set(primaryAddress);
// Add secondary address.
bb.Set(secondaryAddress);
//Add frame ID.
if (frame == 0)
{
frame = settings.NextSend();
}
bb.SetUInt8(frame);
// Add header CRC.
UInt16 crc = GXFCS16.CountFCS16(bb.Data, 1, bb.Size - 1);
bb.SetUInt16(crc);
if (len != 0)
{
//Add data.
bb.Set(data, len);
// Add data CRC.
crc = GXFCS16.CountFCS16(bb.Data, 1, bb.Size - 1);
bb.SetUInt16(crc);
}
// Add EOP
bb.SetUInt8(GXCommon.HDLCFrameStartEnd);
if (data != null)
{
//Remove sent data in server side.
if (settings.IsServer)
{
if (data.Size == data.Position)
{
data.Clear();
}
else
{
data.Move(data.Position, 0, data.Size - data.Position);
data.Position = 0;
}
}
}
return bb.Array();
}
