/// <summary>
/// Constructor.
/// </summary>
/// <param name="forTarget"></param>
/// <param name="forCommand"></param>
/// <param name="forType"></param>
public GXDLMSLongTransaction(ValueEventArgs[] forTargets, Command forCommand, GXByteBuffer forData)
{
targets = forTargets;
command = forCommand;
data = new GXByteBuffer();
data.Set(forData.Data, forData.Position, forData.Size - forData.Position);
}
internal static void SetValue(GXByteBuffer buff, object data)
{
GXByteBuffer tmp = new GXByteBuffer();
tmp.Add(data);
buff.Add((byte)tmp.Size);
buff.Set(tmp.Array());
}
///<summary>
///Retrieves the string that indicates the level of authentication, if any.
///</summary>
private static void GetAuthenticationString(GXDLMSSettings settings, GXByteBuffer data)
{
//If authentication is used.
if (settings.Authentication != Authentication.None)
{
//Add sender ACSE-requirements field component.
data.SetUInt8((byte)BerType.Context | (byte)PduType.SenderAcseRequirements);
data.SetUInt8(2);
data.SetUInt8(BerType.BitString | BerType.OctetString);
data.SetUInt8(0x80);
data.SetUInt8((byte)BerType.Context | (byte)PduType.MechanismName);
//Len
data.SetUInt8(7);
// OBJECT IDENTIFIER
byte[] p = { (byte)0x60, (byte)0x85, (byte)0x74, (byte)0x05, (byte)0x08, (byte)0x02, (byte)settings.Authentication };
data.Set(p);
//Add Calling authentication information.
int len = 0;
byte[] callingAuthenticationValue = null;
if (settings.Authentication == Authentication.Low)
{
if (settings.Password != null)
{
callingAuthenticationValue = settings.Password;
len = callingAuthenticationValue.Length;
}
}
else
{
callingAuthenticationValue = settings.CtoSChallenge;
len = callingAuthenticationValue.Length;
}
//0xAC
data.SetUInt8((byte)BerType.Context | (byte)BerType.Constructed | (byte)PduType.CallingAuthenticationValue);
//Len
data.SetUInt8((byte)(2 + len));
//Add authentication information.
data.SetUInt8((byte)BerType.Context);
//Len.
data.SetUInt8((byte)len);
if (len != 0)
{
data.Set(callingAuthenticationValue);
}
}
}
///<summary>
///Convert ASCII string to DLMS bytes.
///</summary>
///<param name="buff">
///Byte buffer where data is write.
///</param>
///<param name="value">
///Added value.
///</param>
private static void SetString(GXByteBuffer buff, object value)
{
if (value != null)
{
string str = Convert.ToString(value);
SetObjectCount(str.Length, buff);
buff.Set(ASCIIEncoding.ASCII.GetBytes(str));
}
else
{
buff.SetUInt8(0);
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, int index, int selector, object parameters)
{
if (index == 1)
{
return(this.LogicalName);
}
if (index == 2)
{
return(GetObjects());
}
if (index == 3)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
//Add count
data.SetUInt8(2);
data.SetUInt8((byte)DataType.UInt8);
data.SetUInt16(ClientSAP);
data.SetUInt8((byte)DataType.UInt16);
data.SetUInt16(ServerSAP);
return(data.Array());
}
if (index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8(0x7);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.JointIsoCtt);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.Country);
GXCommon.SetData(data, DataType.UInt16, ApplicationContextName.CountryName);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.IdentifiedOrganization);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.DlmsUA);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.ApplicationContext);
GXCommon.SetData(data, DataType.UInt8, ApplicationContextName.ContextId);
return(data.Array());
}
if (index == 5)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(6);
GXCommon.SetData(data, DataType.BitString, XDLMSContextInfo.Conformance);
GXCommon.SetData(data, DataType.UInt16, XDLMSContextInfo.MaxReceivePduSize);
GXCommon.SetData(data, DataType.UInt16, XDLMSContextInfo.MaxSendPpuSize);
GXCommon.SetData(data, DataType.UInt8, XDLMSContextInfo.DlmsVersionNumber);
GXCommon.SetData(data, DataType.Int8, XDLMSContextInfo.QualityOfService);
GXCommon.SetData(data, DataType.OctetString, XDLMSContextInfo.CypheringInfo);
return(data.Array());
}
if (index == 6)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8(0x7);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.JointIsoCtt);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.Country);
GXCommon.SetData(data, DataType.UInt16, AuthenticationMechanismMame.CountryName);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.IdentifiedOrganization);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.DlmsUA);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.AuthenticationMechanismName);
GXCommon.SetData(data, DataType.UInt8, AuthenticationMechanismMame.MechanismId);
return(data.Array());
}
if (index == 7)
{
return(Secret);
}
if (index == 8)
{
return(AssociationStatus);
}
if (index == 9)
{
if (SecuritySetupReference == null)
{
return(null);
}
return(ASCIIEncoding.ASCII.GetBytes(SecuritySetupReference));
}
throw new ArgumentException("GetValue failed. Invalid attribute index.");
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
return(GetObjects(settings, e).Array());
}
if (e.Index == 3)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8(2);
data.SetUInt8((byte)DataType.Int8);
data.SetUInt8(ClientSAP);
data.SetUInt8((byte)DataType.UInt16);
data.SetUInt16(ServerSAP);
return(data.Array());
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8(0x7);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.JointIsoCtt);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.Country);
GXCommon.SetData(settings, data, DataType.UInt16, ApplicationContextName.CountryName);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.IdentifiedOrganization);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.DlmsUA);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.ApplicationContext);
GXCommon.SetData(settings, data, DataType.UInt8, ApplicationContextName.ContextId);
return(data.Array());
}
if (e.Index == 5)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(6);
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt32((UInt32)XDLMSContextInfo.Conformance);
GXCommon.SetData(settings, data, DataType.BitString, bb.SubArray(1, 3));
GXCommon.SetData(settings, data, DataType.UInt16, XDLMSContextInfo.MaxReceivePduSize);
GXCommon.SetData(settings, data, DataType.UInt16, XDLMSContextInfo.MaxSendPduSize);
GXCommon.SetData(settings, data, DataType.UInt8, XDLMSContextInfo.DlmsVersionNumber);
GXCommon.SetData(settings, data, DataType.Int8, XDLMSContextInfo.QualityOfService);
GXCommon.SetData(settings, data, DataType.OctetString, XDLMSContextInfo.CypheringInfo);
return(data.Array());
}
if (e.Index == 6)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8(0x7);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.JointIsoCtt);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.Country);
GXCommon.SetData(settings, data, DataType.UInt16, AuthenticationMechanismName.CountryName);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.IdentifiedOrganization);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.DlmsUA);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.AuthenticationMechanismName);
GXCommon.SetData(settings, data, DataType.UInt8, AuthenticationMechanismName.MechanismId);
return(data.Array());
}
if (e.Index == 7)
{
return(Secret);
}
if (e.Index == 8)
{
return(AssociationStatus);
}
if (e.Index == 9)
{
return(GXCommon.LogicalNameToBytes(SecuritySetupReference));
}
if (e.Index == 10)
{
return(GetUserList(settings, e).Array());
}
if (e.Index == 11)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add structure size.
data.SetUInt8(2);
GXCommon.SetData(settings, data, DataType.UInt8, CurrentUser.Key);
GXCommon.SetData(settings, data, DataType.String, CurrentUser.Value);
return(data.Array());
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
private void GetAccessRights(GXDLMSSettings settings, GXDLMSObject item, GXByteBuffer data)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)3);
GXCommon.SetData(settings, data, DataType.UInt16, item.ShortName);
data.SetUInt8((byte)DataType.Array);
data.SetUInt8((byte)item.Attributes.Count);
foreach (GXDLMSAttributeSettings att in item.Attributes)
{
data.SetUInt8((byte)DataType.Structure); //attribute_access_item
data.SetUInt8((byte)3);
GXCommon.SetData(settings, data, DataType.Int8, att.Index);
GXCommon.SetData(settings, data, DataType.Enum, att.Access);
GXCommon.SetData(settings, data, DataType.None, null);
}
data.SetUInt8((byte)DataType.Array);
data.SetUInt8((byte)item.MethodAttributes.Count);
foreach (GXDLMSAttributeSettings it in item.MethodAttributes)
{
data.SetUInt8((byte)DataType.Structure); //attribute_access_item
data.SetUInt8((byte)2);
GXCommon.SetData(settings, data, DataType.Int8, it.Index);
GXCommon.SetData(settings, data, DataType.Enum, it.MethodAccess);
}
}
/// <summary>
/// Add ASN1 object to byte buffer.
/// </summary>
/// <param name="bb">Byte buffer where ANS1 object is serialized. </param>
/// <param name="target">ANS1 object </param>
/// <returns>Size of object. </returns>
private static int GetBytes(GXByteBuffer bb, object target)
{
GXByteBuffer tmp;
string str;
int start = bb.Size;
int cnt = 0;
if (target is GXAsn1Context)
{
tmp = new GXByteBuffer();
foreach (object it in ((GXAsn1Context)target))
{
cnt += GetBytes(tmp, it);
}
start = bb.Size;
bb.SetUInt8(BerType.Constructed | BerType.Context);
GXCommon.SetObjectCount(cnt, bb);
cnt += bb.Size - start;
bb.Set(tmp);
return(cnt);
}
else if (target is object[])
{
tmp = new GXByteBuffer();
foreach (object it in (object[])target)
{
cnt += GetBytes(tmp, it);
}
start = bb.Size;
bb.SetUInt8(BerType.Constructed | BerType.Sequence);
GXCommon.SetObjectCount(cnt, bb);
cnt += bb.Size - start;
bb.Set(tmp);
return(cnt);
}
else if (target is string)
{
bb.SetUInt8(BerType.PrintableString);
GXCommon.SetObjectCount(((string)target).Length, bb);
bb.Add(target);
}
else if (target is sbyte)
{
bb.SetUInt8((byte)BerType.Integer);
GXCommon.SetObjectCount(1, bb);
bb.Add(target);
}
else if (target is short)
{
bb.SetUInt8((byte)BerType.Integer);
GXCommon.SetObjectCount(2, bb);
bb.Add(target);
}
else if (target is int)
{
bb.SetUInt8((byte)BerType.Integer);
GXCommon.SetObjectCount(4, bb);
bb.Add(target);
}
else if (target is GXAsn1Integer)
{
bb.SetUInt8((byte)BerType.Integer);
byte[] b = ((GXAsn1Integer)target).Value;
GXCommon.SetObjectCount(b.Length, bb);
bb.Add(b);
}
else if (target is long)
{
bb.SetUInt8((byte)BerType.Integer);
GXCommon.SetObjectCount(8, bb);
bb.Add(target);
}
else if (target is byte[])
{
bb.SetUInt8(BerType.OctetString);
GXCommon.SetObjectCount(((byte[])target).Length, bb);
bb.Add(target);
}
else if (target == null)
{
bb.SetUInt8(BerType.Null);
GXCommon.SetObjectCount(0, bb);
}
else if (target is bool)
{
bb.SetUInt8(BerType.Boolean);
bb.SetUInt8(1);
if ((bool)target)
{
bb.SetUInt8(255);
}
else
{
bb.SetUInt8(0);
}
}
else if (target is GXAsn1ObjectIdentifier)
{
bb.SetUInt8(BerType.ObjectIdentifier);
byte[] t = ((GXAsn1ObjectIdentifier)target).Encoded;
GXCommon.SetObjectCount(t.Length, bb);
bb.Add(t);
}
else if (target is KeyValuePair <object, object> )
{
KeyValuePair <object, object> e = (KeyValuePair <object, object>)target;
GXByteBuffer tmp2 = new GXByteBuffer();
if (e.Value != null)
{
tmp = new GXByteBuffer();
cnt += GetBytes(tmp2, e.Key);
cnt += GetBytes(tmp2, e.Value);
tmp.SetUInt8(BerType.Constructed | BerType.Sequence);
GXCommon.SetObjectCount(cnt, tmp);
tmp.Set(tmp2);
}
else
{
GetBytes(tmp2, (e.Key as List <object>)[0]);
tmp = tmp2;
}
// Update len.
cnt = bb.Size;
bb.SetUInt8(BerType.Constructed | BerType.Set);
GXCommon.SetObjectCount(tmp.Size, bb);
bb.Set(tmp);
return(bb.Size - cnt);
}
else if (target is GXAsn1Utf8String)
{
bb.SetUInt8(BerType.Utf8StringTag);
str = target.ToString();
GXCommon.SetObjectCount(str.Length, bb);
bb.Add(str);
}
else if (target is GXAsn1Ia5String)
{
bb.SetUInt8(BerType.Ia5String);
str = target.ToString();
GXCommon.SetObjectCount(str.Length, bb);
bb.Add(str);
}
else if (target is GXAsn1BitString)
{
GXAsn1BitString bs = (GXAsn1BitString)target;
bb.SetUInt8(BerType.BitString);
GXCommon.SetObjectCount(1 + bs.Value.Length, bb);
bb.SetUInt8((byte)bs.PadBits);
bb.Add(bs.Value);
}
else if (target is GXAsn1PublicKey)
{
GXAsn1PublicKey bs = (GXAsn1PublicKey)target;
bb.SetUInt8(BerType.BitString);
// Size is 64 bytes + padding and uncompressed point indicator.
GXCommon.SetObjectCount(66, bb);
// Add padding.
bb.SetUInt8(0);
// prefixed with the uncompressed point indicator 04
bb.SetUInt8(4);
bb.Add(bs.Value);
// Count is type + size + 64 bytes + padding + uncompressed point
// indicator.
return(68);
}
else if (target is DateTime)
{
// Save date time in UTC.
bb.SetUInt8(BerType.UtcTime);
str = DateToString((DateTime)target);
bb.SetUInt8((byte)str.Length);
bb.Add(str);
}
else if (target is GXAsn1Sequence || target is IList)
{
tmp = new GXByteBuffer();
foreach (object it in (IList)target)
{
cnt += GetBytes(tmp, it);
}
start = bb.Size;
bb.SetUInt8(BerType.Constructed | BerType.Sequence);
GXCommon.SetObjectCount(cnt, bb);
cnt += bb.Size - start;
bb.Set(tmp);
return(cnt);
}
else
{
throw new ArgumentException("Invalid type: " + target.GetType().ToString());
}
return(bb.Size - start);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
//If client set new value.
if (!settings.IsServer && Scaler != 1 && CurrentAverageValue != null)
{
Type type = null;
if (CurrentAverageValue != null)
{
type = CurrentAverageValue.GetType();
}
object tmp;
tmp = Convert.ToDouble(CurrentAverageValue) / Scaler;
if (type != null)
{
tmp = Convert.ChangeType(tmp, type);
}
return(tmp);
}
return(CurrentAverageValue);
}
if (e.Index == 3)
{
//If client set new value.
if (!settings.IsServer && Scaler != 1 && LastAverageValue != null)
{
DataType dt = base.GetDataType(3);
if (dt == DataType.None && LastAverageValue != null)
{
dt = GXCommon.GetDLMSDataType(LastAverageValue.GetType());
}
object tmp;
tmp = Convert.ToDouble(LastAverageValue) / Scaler;
if (dt != DataType.None)
{
tmp = Convert.ChangeType(tmp, GXCommon.GetDataType(dt));
}
return(tmp);
}
return(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(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 data from DLMS frame.
///</summary>
///<param name="settings">DLMS settings.</param>
///<param name="data">Received data.</param>
///<param name="info"> Data info.</param>
///<returns>Parsed object.</returns>
///
public static object GetData(GXDLMSSettings settings, GXByteBuffer data, GXDataInfo info)
{
object value = null;
int startIndex = data.Position;
if (data.Position == data.Size)
{
info.Complete = false;
return null;
}
info.Complete = true;
bool knownType = info.Type != DataType.None;
// Get data type if it is unknown.
if (!knownType)
{
info.Type = (DataType)data.GetUInt8();
}
if (info.Type == DataType.None)
{
if (info.xml != null)
{
info.xml.AppendLine("<" + info.xml.GetDataType(info.Type) + " />");
}
return value;
}
if (data.Position == data.Size)
{
info.Complete = false;
return null;
}
switch (info.Type)
{
case DataType.Array:
case DataType.Structure:
value = GetArray(data, info, startIndex);
break;
case DataType.Boolean:
value = GetBoolean(data, info);
break;
case DataType.BitString:
value = GetBitString(data, info);
break;
case DataType.Int32:
value = GetInt32(data, info);
break;
case DataType.UInt32:
value = GetUInt32(data, info);
break;
case DataType.String:
value = GetString(data, info, knownType);
break;
case DataType.StringUTF8:
value = GetUtfString(data, info, knownType);
break;
case DataType.OctetString:
value = GetOctetString(data, info, knownType);
break;
case DataType.Bcd:
value = GetBcd(data, info, knownType);
break;
case DataType.Int8:
value = GetInt8(data, info);
break;
case DataType.Int16:
value = GetInt16(data, info);
break;
case DataType.UInt8:
value = GetUInt8(data, info);
break;
case DataType.UInt16:
value = GetUInt16(data, info);
break;
case DataType.CompactArray:
throw new Exception("Invalid data type.");
case DataType.Int64:
value = GetInt64(data, info);
break;
case DataType.UInt64:
value = GetUInt64(data, info);
break;
case DataType.Enum:
value = GetEnum(data, info);
break;
case DataType.Float32:
value = Getfloat(data, info);
break;
case DataType.Float64:
value = GetDouble(data, info);
break;
case DataType.DateTime:
value = GetDateTime(settings, data, info);
break;
case DataType.Date:
value = GetDate(data, info);
break;
case DataType.Time:
value = GetTime(data, info);
break;
default:
throw new Exception("Invalid data type.");
}
return value;
}
/// <summary>
/// Decrypt data.
/// </summary>
/// <param name="p">Decryption parameters</param>
/// <returns>Decrypted data.</returns>
public static byte[] DecryptAesGcm(AesGcmParameter p, GXByteBuffer data)
{
if (data == null || data.Size < 2)
{
throw new ArgumentOutOfRangeException("cryptedData");
}
int len;
Command cmd = (Command)data.GetUInt8();
switch (cmd)
{
case Command.GloGeneralCiphering:
len = GXCommon.GetObjectCount(data);
p.SystemTitle = new byte[len];
data.Get(p.SystemTitle);
break;
case Command.GloInitiateRequest:
case Command.GloInitiateResponse:
case Command.GloReadRequest:
case Command.GloReadResponse:
case Command.GloWriteRequest:
case Command.GloWriteResponse:
case Command.GloGetRequest:
case Command.GloGetResponse:
case Command.GloSetRequest:
case Command.GloSetResponse:
case Command.GloMethodRequest:
case Command.GloMethodResponse:
case Command.GloEventNotificationRequest:
break;
default:
throw new ArgumentOutOfRangeException("cryptedData");
}
len = Gurux.DLMS.Internal.GXCommon.GetObjectCount(data);
p.Security = (Gurux.DLMS.Enums.Security)data.GetUInt8();
p.FrameCounter = data.GetUInt32();
System.Diagnostics.Debug.WriteLine("Decrypt settings: " + p.ToString());
System.Diagnostics.Debug.WriteLine("Encrypted: " + GXCommon.ToHex(data.Array(), true));
byte[] tag = new byte[12];
byte[] encryptedData;
int length;
if (p.Security == Gurux.DLMS.Enums.Security.Authentication)
{
length = data.Size - data.Position - 12;
encryptedData = new byte[length];
data.Get(encryptedData);
data.Get(tag);
// Check tag.
EncryptAesGcm(p, encryptedData);
if (!GXDLMSChipperingStream.TagsEquals(tag, p.CountTag))
{
throw new GXDLMSException("Decrypt failed. Invalid tag.");
}
return encryptedData;
}
byte[] ciphertext = null;
if (p.Security == Gurux.DLMS.Enums.Security.Encryption)
{
length = data.Size - data.Position;
ciphertext = new byte[length];
data.Get(ciphertext);
}
else if (p.Security == Gurux.DLMS.Enums.Security.AuthenticationEncryption)
{
length = data.Size - data.Position - 12;
ciphertext = new byte[length];
data.Get(ciphertext);
data.Get(tag);
}
byte[] aad = GetAuthenticatedData(p.Security, p.AuthenticationKey, data.Array());
byte[] iv = GetNonse(p.FrameCounter, p.SystemTitle);
GXDLMSChipperingStream gcm = new GXDLMSChipperingStream(p.Security, true, p.BlockCipherKey, aad, iv, tag);
gcm.Write(ciphertext);
return gcm.FlushFinalBlock();
}
/// <summary>
/// Set item count.
/// </summary>
/// <param name="count"></param>
/// <param name="buff"></param>
internal static void SetObjectCount(int count, GXByteBuffer buff)
{
if (count < 0x80)
{
buff.SetUInt8((byte)count);
}
else if (count < 0x100)
{
buff.SetUInt8(0x81);
buff.SetUInt8((byte)count);
}
else if (count < 0x10000)
{
buff.SetUInt8(0x82);
buff.SetUInt16((UInt16)count);
}
else
{
buff.SetUInt8(0x84);
buff.SetUInt32((UInt32)count);
}
}
/// <summary>
/// Get object count. If first byte is 0x80 or higger it will tell bytes count.
/// </summary>
/// <param name="data">Received data.</param>
/// <returns>Object count.</returns>
public static int GetObjectCount(GXByteBuffer data)
{
int cnt = data.GetUInt8();
if (cnt > 0x80)
{
if (cnt == 0x81)
{
return data.GetUInt8();
}
else if (cnt == 0x82)
{
return data.GetUInt16();
}
else if (cnt == 0x84)
{
return (int)data.GetUInt32();
}
else
{
throw new System.ArgumentException("Invalid count.");
}
}
return cnt;
}
/// <summary>
/// Add string to byte buffer.
/// </summary>
/// <param name="value">String to add.</param>
/// <param name="bb">Byte buffer where string is added.</param>
public static void AddString(string value, GXByteBuffer bb)
{
bb.SetUInt8((byte)DataType.OctetString);
if (value == null)
{
GXCommon.SetObjectCount(0, bb);
}
else
{
GXCommon.SetObjectCount(value.Length, bb);
bb.Set(ASCIIEncoding.ASCII.GetBytes(value));
}
}
/// <summary>
/// Get HDLC address from byte array.
/// </summary>
/// <param name="GXByteBuffer">Byte array.</param>
/// <returns>HDLC address.</returns>
public static int GetHDLCAddress(GXByteBuffer buff)
{
int size = 0;
for (int pos = buff.Position; pos != buff.Size; ++pos)
{
++size;
if ((buff.GetUInt8(pos) & 0x1) == 1)
{
break;
}
}
if (size == 1)
{
return (byte)((buff.GetUInt8() & 0xFE) >> 1);
}
else if (size == 2)
{
size = buff.GetUInt16();
size = ((size & 0xFE) >> 1) | ((size & 0xFE00) >> 2);
return size;
}
else if (size == 4)
{
UInt32 tmp = buff.GetUInt32();
tmp = ((tmp & 0xFE) >> 1) | ((tmp & 0xFE00) >> 2)
| ((tmp & 0xFE0000) >> 3) | ((tmp & 0xFE000000) >> 4);
return (int)tmp;
}
throw new ArgumentException("Wrong size.");
}
///<summary>
///Convert Bit string to DLMS bytes.
///</summary>
///<param name="buff">
///Byte buffer where data is write.
///</param>
///<param name="value">
///Added value.
///</param>
private static void SetBitString(GXByteBuffer buff, object value)
{
if (value is string)
{
GXByteBuffer tmp = new GXByteBuffer();
byte val = 0;
int index = 0;
string str = ((string)value);
SetObjectCount(str.Length, buff);
foreach (char it in str.Reverse())
{
if (it == '1')
{
val |= (byte)(1 << index);
++index;
}
else if (it == '0')
{
++index;
}
else
{
throw new Exception("Not a bit string.");
}
if (index == 8)
{
index = 0;
tmp.SetUInt8(val);
val = 0;
}
}
if (index != 0)
{
tmp.SetUInt8(val);
}
for (int pos = tmp.Size - 1; pos != -1; --pos)
{
buff.SetUInt8(tmp.GetUInt8(pos));
}
}
else if (value is sbyte[])
{
byte[] arr = (byte[])value;
SetObjectCount(arr.Length, buff);
buff.Set(arr);
}
else if (value == null)
{
buff.SetUInt8(0);
}
else
{
throw new Exception("BitString must give as string.");
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(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>
///Get array from DLMS data.
///</summary>
///<param name="buff">
///Received DLMS data.
///</param>
///<param name="info">
///Data info.
///</param>
///<param name="index">
///starting index.
///</param>
///<returns>Object array.
///</returns>
private static object GetArray(GXByteBuffer buff, GXDataInfo info, int index)
{
object value;
if (info.Count == 0)
{
info.Count = GXCommon.GetObjectCount(buff);
}
if (info.xml != null)
{
info.xml.AppendStartTag(GXDLMS.DATA_TYPE_OFFSET | (int)info.Type, "Qty", info.xml.IntegerToHex(info.Count, 2));
}
int size = buff.Size - buff.Position;
if (info.Count != 0 && size < 1)
{
info.Complete = false;
return null;
}
int startIndex = index;
List<object> arr = new List<object>(info.Count - info.Index);
// Position where last row was found. Cache uses this info.
int pos = info.Index;
for (; pos != info.Count; ++pos)
{
GXDataInfo info2 = new GXDataInfo();
info2.xml = info.xml;
object tmp = GetData(null, buff, info2);
if (!info2.Complete)
{
buff.Position = (UInt16)startIndex;
info.Complete = false;
break;
}
else
{
if (info2.Count == info2.Index)
{
startIndex = buff.Position;
arr.Add(tmp);
}
}
}
if (info.xml != null)
{
info.xml.AppendEndTag(GXDLMS.DATA_TYPE_OFFSET + (int)info.Type);
}
info.Index = pos;
value = arr.ToArray();
return value;
}
/// <summary>
/// Read DLMS Data from the device.
/// </summary>
/// <param name="data">Data to send.</param>
/// <returns>Received data.</returns>
public void ReadDLMSPacket(byte[] data, GXReplyData reply)
{
if (data == null && !reply.IsStreaming())
{
return;
}
GXReplyData notify = new GXReplyData();
reply.Error = 0;
object eop = (byte)0x7E;
//In network connection terminator is not used.
if (Client.InterfaceType == InterfaceType.WRAPPER && Media is GXNet)
{
eop = null;
}
int pos = 0;
bool succeeded = false;
ReceiveParameters <byte[]> p = new ReceiveParameters <byte[]>()
{
Eop = eop,
WaitTime = WaitTime,
};
if (eop == null)
{
p.Count = 8;
}
else
{
p.Count = 5;
}
GXByteBuffer rd = new GXByteBuffer();
lock (Media.Synchronous)
{
while (!succeeded && pos != 3)
{
if (!reply.IsStreaming())
{
WriteTrace("TX:\t" + DateTime.Now.ToLongTimeString() + "\t" + GXCommon.ToHex(data, true));
Media.Send(data, null);
}
succeeded = Media.Receive(p);
if (!succeeded)
{
if (++pos >= RetryCount)
{
throw new Exception("Failed to receive reply from the device in given time.");
}
//If Eop is not set read one byte at time.
if (p.Eop == null)
{
p.Count = 1;
}
//Try to read again...
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
}
}
rd = new GXByteBuffer(p.Reply);
try
{
pos = 0;
//Loop until whole COSEM packet is received.
while (!Client.GetData(rd, reply, notify))
{
p.Reply = null;
if (notify.Data.Data != null)
{
//Handle notify.
if (!notify.IsMoreData)
{
//Show received push message as XML.
string xml;
GXDLMSTranslator t = new GXDLMSTranslator(TranslatorOutputType.SimpleXml);
t.DataToXml(notify.Data, out xml);
Console.WriteLine(xml);
notify.Clear();
}
continue;
}
else if (p.Eop == null)
{
p.Count = Client.GetFrameSize(rd);
}
while (!Media.Receive(p))
{
if (++pos >= RetryCount)
{
throw new Exception("Failed to receive reply from the device in given time.");
}
//If echo.
if (rd == null || rd.Size == data.Length)
{
Media.Send(data, null);
}
//Try to read again...
System.Diagnostics.Debug.WriteLine("Data send failed. Try to resend " + pos.ToString() + "/3");
}
rd.Set(p.Reply);
}
}
catch (Exception ex)
{
WriteTrace("RX:\t" + DateTime.Now.ToLongTimeString() + "\t" + rd);
throw ex;
}
}
WriteTrace("RX:\t" + DateTime.Now.ToLongTimeString() + "\t" + rd);
if (reply.Error != 0)
{
if (reply.Error == (short)ErrorCode.Rejected)
{
Thread.Sleep(1000);
ReadDLMSPacket(data, reply);
}
}
}
///<summary>
///Get time from DLMS data.
///</summary>
///<param name="buff">
///Received DLMS data.
///</param>
///<param name="info">
///Data info.
///</param>
///<returns>
///Parsed time.
///</returns>
private static object GetTime(GXByteBuffer buff, GXDataInfo info)
{
object value;
if (buff.Size - buff.Position < 4)
{
// If there is not enough data available.
info.Complete = false;
return null;
}
if (info.xml != null)
{
info.xml.AppendLine(info.xml.GetDataType(info.Type), "Value", GXCommon.ToHex(buff.Data, false, buff.Position, 4));
}
// Get time.
int hour = buff.GetUInt8();
int minute = buff.GetUInt8();
int second = buff.GetUInt8();
int ms = buff.GetUInt8();
if (ms != 0xFF)
{
ms *= 10;
}
GXTime dt = new GXTime(hour, minute, second, ms);
value = dt;
return value;
}
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);
}
///<summary>
///Get date from DLMS data.
///</summary>
///<param name="buff">
///Received DLMS data.
///</param>
///<param name="info">
///Data info.
///</param>
///<returns>
///Parsed date.
///</returns>
private static object GetDate(GXByteBuffer buff, GXDataInfo info)
{
object value;
if (buff.Size - buff.Position < 5)
{
// If there is not enough data available.
info.Complete = false;
return null;
}
if (info.xml != null)
{
info.xml.AppendLine(info.xml.GetDataType(info.Type), "Value", GXCommon.ToHex(buff.Data, false, buff.Position, 5));
}
// Get year.
int year = buff.GetUInt16();
// Get month
int month = buff.GetUInt8();
// Get day
int day = buff.GetUInt8();
GXDate dt = new GXDate(year, month, day);
// Skip week day
if (buff.GetUInt8() == 0xFF)
{
dt.Skip |= DateTimeSkips.DayOfWeek;
}
value = dt;
return value;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
if (APN != null)
{
return(ASCIIEncoding.ASCII.GetBytes(APN));
}
return(null);
}
if (e.Index == 3)
{
return(PINCode);
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
data.SetUInt8((byte)2);
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)5);
if (DefaultQualityOfService != null)
{
GXCommon.SetData(settings, data, DataType.UInt8, DefaultQualityOfService.Precedence);
GXCommon.SetData(settings, data, DataType.UInt8, DefaultQualityOfService.Delay);
GXCommon.SetData(settings, data, DataType.UInt8, DefaultQualityOfService.Reliability);
GXCommon.SetData(settings, data, DataType.UInt8, DefaultQualityOfService.PeakThroughput);
GXCommon.SetData(settings, data, DataType.UInt8, DefaultQualityOfService.MeanThroughput);
}
else
{
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
}
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)5);
if (RequestedQualityOfService != null)
{
GXCommon.SetData(settings, data, DataType.UInt8, RequestedQualityOfService.Precedence);
GXCommon.SetData(settings, data, DataType.UInt8, RequestedQualityOfService.Delay);
GXCommon.SetData(settings, data, DataType.UInt8, RequestedQualityOfService.Reliability);
GXCommon.SetData(settings, data, DataType.UInt8, RequestedQualityOfService.PeakThroughput);
GXCommon.SetData(settings, data, DataType.UInt8, RequestedQualityOfService.MeanThroughput);
}
else
{
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
GXCommon.SetData(settings, data, DataType.UInt8, 0);
}
return(data.Array());
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
///<summary>
///Get date and time from DLMS data.
///</summary>
///<param name="settings">DLMS settings.</param>
///<param name="buff">Received DLMS data.</param>
///<param name="info">Data info.</param>
///<returns>
///Parsed date and time.
///</returns>
private static object GetDateTime(GXDLMSSettings settings, GXByteBuffer buff, GXDataInfo info)
{
// If there is not enough data available.
if (buff.Size - buff.Position < 12)
{
//If time.
if (buff.Size - buff.Position < 5)
{
return GetTime(buff, info);
}
//If date.
else if (buff.Size - buff.Position < 6)
{
return GetDate(buff, info);
}
info.Complete = false;
return null;
}
if (info.xml != null)
{
info.xml.AppendLine(info.xml.GetDataType(info.Type), "Value", GXCommon.ToHex(buff.Data, false, buff.Position, 12));
}
GXDateTime dt = new GXDateTime();
//Get year.
int year = buff.GetUInt16();
if (year == 0xFFFF || year == 0)
{
year = DateTime.Now.Year;
dt.Skip |= DateTimeSkips.Year;
}
//Get month
int month = buff.GetUInt8();
if (month == 0 || month == 0xFF || month == 0xFE || month == 0xFD)
{
month = 1;
dt.Skip |= DateTimeSkips.Month;
}
int day = buff.GetUInt8();
if (day < 1 || day == 0xFF)
{
day = 1;
dt.Skip |= DateTimeSkips.Day;
}
else if (day == 0xFD || day == 0xFE)
{
day = DateTime.DaysInMonth(year, month) + (sbyte)day + 2;
}
//Skip week day
if (buff.GetUInt8() == 0xFF)
{
dt.Skip |= DateTimeSkips.DayOfWeek;
}
//Get time.
int hours = buff.GetUInt8();
if (hours == 0xFF)
{
hours = 0;
dt.Skip |= DateTimeSkips.Hour;
}
int minutes = buff.GetUInt8();
if (minutes == 0xFF)
{
minutes = 0;
dt.Skip |= DateTimeSkips.Minute;
}
int seconds = buff.GetUInt8();
if (seconds == 0xFF)
{
seconds = 0;
dt.Skip |= DateTimeSkips.Second;
}
int milliseconds = buff.GetUInt8();
if (milliseconds != 0xFF)
{
milliseconds *= 10;
}
else
{
milliseconds = 0;
dt.Skip |= DateTimeSkips.Ms;
}
int deviation = buff.GetInt16();
dt.Status = (ClockStatus)buff.GetUInt8();
if (settings != null && settings.UtcTimeZone)
{
deviation = -deviation;
}
dt.Deviation = deviation;
//0x8000 == -32768
//deviation = -1 if skipped.
if (deviation != -1 && deviation != -32768 && year != 1 && (dt.Skip & DateTimeSkips.Year) == 0)
{
dt.Value = new DateTimeOffset(new DateTime(year, month, day, hours, minutes, seconds, milliseconds),
new TimeSpan(0, -deviation, 0));
}
else //Use current time if deviation is not defined.
{
dt.Skip |= DateTimeSkips.Devitation;
DateTime tmp = new DateTime(year, month, day, hours, minutes, seconds, milliseconds, DateTimeKind.Local);
dt.Value = new DateTimeOffset(tmp, TimeZoneInfo.Local.GetUtcOffset(tmp));
}
return dt;
}
byte[] IGXDLMSBase.Invoke(GXDLMSSettings settings, ValueEventArgs e)
{
//Check reply_to_HLS_authentication
if (e.Index == 1)
{
UInt32 ic = 0;
byte[] secret;
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.SourceSystemTitle;
GXByteBuffer bb = new GXByteBuffer(e.Parameters as byte[]);
bb.GetUInt8();
ic = bb.GetUInt32();
}
else
{
secret = Secret;
}
byte[] serverChallenge = GXSecure.Secure(settings, settings.Cipher, ic, settings.StoCChallenge, secret);
byte[] clientChallenge = (byte[])e.Parameters;
if (serverChallenge != null && clientChallenge != null && GXCommon.Compare(serverChallenge, clientChallenge))
{
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.Cipher.SystemTitle;
ic = settings.Cipher.InvocationCounter;
}
else
{
secret = Secret;
}
settings.Connected = ConnectionState.Dlms;
AssociationStatus = AssociationStatus.Associated;
return(GXSecure.Secure(settings, settings.Cipher, ic, settings.CtoSChallenge, secret));
}
else //If the password does not match.
{
AssociationStatus = AssociationStatus.NonAssociated;
settings.Connected &= ~ConnectionState.Dlms;
return(null);
}
}
else if (e.Index == 2)
{
byte[] tmp = e.Parameters as byte[];
if (tmp == null || tmp.Length == 0)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
Secret = tmp;
}
}
else if (e.Index == 3)
{
//Add COSEM object.
GXDLMSObject obj = GetObject(settings, e.Parameters as object[]);
//Unknown objects are not add.
if (obj is IGXDLMSBase)
{
if (ObjectList.FindByLN(obj.ObjectType, obj.LogicalName) == null)
{
ObjectList.Add(obj);
}
if (settings.Objects.FindByLN(obj.ObjectType, obj.LogicalName) == null)
{
settings.Objects.Add(obj);
}
}
}
else if (e.Index == 4)
{
//Remove COSEM object.
GXDLMSObject obj = GetObject(settings, e.Parameters as object[]);
//Unknown objects are not removed.
if (obj is IGXDLMSBase)
{
GXDLMSObject t = ObjectList.FindByLN(obj.ObjectType, obj.LogicalName);
if (t != null)
{
ObjectList.Remove(t);
}
//Item is not removed from all objects. It might be that use wants remove object only from association view.
}
}
else if (e.Index == 5)
{
object[] tmp = e.Parameters as object[];
if (tmp == null || tmp.Length != 2)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
UserList.Add(new KeyValuePair <byte, string>(Convert.ToByte(tmp[0]), Convert.ToString(tmp[1])));
}
}
else if (e.Index == 6)
{
object[] tmp = e.Parameters as object[];
if (tmp == null || tmp.Length != 2)
{
e.Error = ErrorCode.ReadWriteDenied;
}
else
{
UserList.Remove(new KeyValuePair <byte, string>(Convert.ToByte(tmp[0]), Convert.ToString(tmp[1])));
}
}
else
{
e.Error = ErrorCode.ReadWriteDenied;
}
return(null);
}
///<summary>
///Get float value from DLMS data.
///</summary>
///<param name="buff">
///Received DLMS data.
///</param>
///<param name="info">
///Data info.
///</param>
///<returns>
///Parsed float value.
///</returns>
private static object Getfloat(GXByteBuffer buff, GXDataInfo info)
{
// If there is not enough data available.
if (buff.Size - buff.Position < 4)
{
info.Complete = false;
return null;
}
float value = buff.GetFloat();
if (info.xml != null)
{
GXByteBuffer tmp = new GXByteBuffer();
SetData(null, tmp, DataType.Float32, value);
info.xml.AppendLine(info.xml.GetDataType(info.Type), "Value", GXCommon.ToHex(tmp.Data, false, 1, tmp.Size - 1));
}
return value;
}
///<summary>
///Convert Octet string to DLMS bytes.
///</summary>
///<param name="buff">
///Byte buffer where data is write.
///</param>
///<param name="value">
///Added value.
///</param>
private static void SetOctetString(GXByteBuffer buff, object value)
{
// Example Logical name is octet string, so do not change to
// string...
if (value is string)
{
string[] items = ((string)value).Split('.');
// If data is string.
if (items.Length == 1)
{
byte[] tmp = ASCIIEncoding.ASCII.GetBytes((string)value);
SetObjectCount(tmp.Length, buff);
buff.Set(tmp);
}
else
{
SetObjectCount(items.Length, buff);
foreach (string it in items)
{
buff.SetUInt8(Convert.ToByte(it));
}
}
}
else if (value is sbyte[])
{
SetObjectCount(((byte[])value).Length, buff);
buff.Set((byte[])value);
}
else if (value == null)
{
SetObjectCount(0, buff);
}
else
{
throw new Exception("Invalid data type.");
}
}
///<summary>
///Get UInt16 value from DLMS data.
///</summary>
///<param name="buff">
///Received DLMS data.
///</param>
///<param name="info">
///Data info.
///</param>
///<returns>
///Parsed UInt16 value.
///</returns>
private static object GetUInt16(GXByteBuffer buff, GXDataInfo info)
{
// If there is not enough data available.
if (buff.Size - buff.Position < 2)
{
info.Complete = false;
return null;
}
UInt16 value = buff.GetUInt16();
if (info.xml != null)
{
info.xml.AppendLine(info.xml.GetDataType(info.Type), "Value", info.xml.IntegerToHex(value, 4));
}
return value;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (ObjectList == null)
{
ObjectList = new GXDLMSObjectCollection();
}
if (e.Index == 1)
{
return this.LogicalName;
}
else if (e.Index == 2)
{
return GetObjects(settings, e).Array();
}
else if (e.Index == 3)
{
bool lnExists = ObjectList.FindBySN(this.ShortName) != null;
//Add count
int cnt = ObjectList.Count;
if (!lnExists)
{
++cnt;
}
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
GXCommon.SetObjectCount(cnt, data);
foreach (GXDLMSObject it in ObjectList)
{
GetAccessRights(settings, it, data);
}
if (!lnExists)
{
GetAccessRights(settings, this, data);
}
return data.Array();
}
else if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
GXCommon.SetData(settings, data, DataType.OctetString, SecuritySetupReference);
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
/// <summary>
/// Decrypt data.
/// </summary>
/// <param name="p">Decryption parameters</param>
/// <returns>Decrypted data.</returns>
public static byte[] DecryptAesGcm(AesGcmParameter p, GXByteBuffer data)
{
if (data == null || data.Size < 2)
{
throw new ArgumentOutOfRangeException("cryptedData");
}
byte[] tmp;
int len;
Command cmd = (Command)data.GetUInt8();
switch (cmd)
{
case Command.GeneralGloCiphering:
case Command.GeneralDedCiphering:
len = GXCommon.GetObjectCount(data);
if (len != 0)
{
p.SystemTitle = new byte[len];
data.Get(p.SystemTitle);
if (p.Xml != null && p.Xml.Comments)
{
p.Xml.AppendComment(GXCommon.SystemTitleToString(Standard.DLMS, p.SystemTitle, true));
}
}
if (p.SystemTitle == null || p.SystemTitle.Length != 8)
{
if (p.Xml == null)
{
throw new ArgumentNullException("Invalid sender system title.");
}
else
{
p.Xml.AppendComment("Invalid sender system title.");
}
}
break;
case Command.GeneralCiphering:
case Command.GloInitiateRequest:
case Command.GloInitiateResponse:
case Command.GloReadRequest:
case Command.GloReadResponse:
case Command.GloWriteRequest:
case Command.GloWriteResponse:
case Command.GloGetRequest:
case Command.GloGetResponse:
case Command.GloSetRequest:
case Command.GloSetResponse:
case Command.GloMethodRequest:
case Command.GloMethodResponse:
case Command.GloEventNotification:
case Command.DedInitiateRequest:
case Command.DedInitiateResponse:
case Command.DedGetRequest:
case Command.DedGetResponse:
case Command.DedSetRequest:
case Command.DedSetResponse:
case Command.DedMethodRequest:
case Command.DedMethodResponse:
case Command.DedEventNotification:
case Command.DedReadRequest:
case Command.DedReadResponse:
case Command.DedWriteRequest:
case Command.DedWriteResponse:
case Command.GloConfirmedServiceError:
case Command.DedConfirmedServiceError:
break;
default:
throw new ArgumentOutOfRangeException("cryptedData");
}
int value = 0;
GXPrivateKey key = null;
GXPublicKey pub = null;
GXByteBuffer transactionId = null;
if (cmd == Command.GeneralCiphering)
{
transactionId = new GXByteBuffer();
len = GXCommon.GetObjectCount(data);
GXCommon.SetObjectCount(len, transactionId);
transactionId.Set(data, len);
p.TransactionId = transactionId.GetUInt64(1);
len = GXCommon.GetObjectCount(data);
if (len != 0)
{
tmp = new byte[len];
data.Get(tmp);
p.SystemTitle = tmp;
}
if (p.SystemTitle == null || p.SystemTitle.Length != 8)
{
if (p.Xml == null)
{
throw new ArgumentNullException("Invalid sender system title.");
}
else
{
p.Xml.AppendComment("Invalid sender system title.");
}
}
len = GXCommon.GetObjectCount(data);
tmp = new byte[len];
data.Get(tmp);
p.RecipientSystemTitle = tmp;
// Get date time.
len = GXCommon.GetObjectCount(data);
if (len != 0)
{
tmp = new byte[len];
data.Get(tmp);
p.DateTime = tmp;
}
// other-information
len = data.GetUInt8();
if (len != 0)
{
tmp = new byte[len];
data.Get(tmp);
p.OtherInformation = tmp;
}
// KeyInfo OPTIONAL
len = data.GetUInt8();
// AgreedKey CHOICE tag.
data.GetUInt8();
// key-parameters
len = data.GetUInt8();
value = data.GetUInt8();
p.KeyParameters = value;
if (value == (int)KeyAgreementScheme.OnePassDiffieHellman)
{
// key-ciphered-data
len = GXCommon.GetObjectCount(data);
GXByteBuffer bb = new GXByteBuffer();
bb.Set(data, len);
if (p.Xml != null)
{
p.KeyCipheredData = bb.Array();
//Find key agreement key using subject.
string subject = GXAsn1Converter.SystemTitleToSubject(p.SystemTitle);
foreach (KeyValuePair <GXPkcs8, GXx509Certificate> it in p.Settings.Keys)
{
if (it.Key != null && it.Value.KeyUsage == ASN.Enums.KeyUsage.KeyAgreement && it.Value.Subject.Contains(subject))
{
key = it.Key.PrivateKey;
//Get recipient Ephemeral public key.
subject = GXAsn1Converter.SystemTitleToSubject(p.RecipientSystemTitle);
foreach (KeyValuePair <GXPkcs8, GXx509Certificate> it2 in p.Settings.Keys)
{
if (it2.Value != null && it2.Value.KeyUsage == ASN.Enums.KeyUsage.KeyAgreement && it2.Value.Subject.Contains(subject))
{
pub = it2.Value.PublicKey;
break;
}
}
break;
}
}
if (key == null)
{
//Find key agreement key using subject.
subject = GXAsn1Converter.SystemTitleToSubject(p.RecipientSystemTitle);
foreach (KeyValuePair <GXPkcs8, GXx509Certificate> it in p.Settings.Keys)
{
if (it.Key != null && it.Value.KeyUsage == ASN.Enums.KeyUsage.KeyAgreement && it.Value.Subject.Contains(subject))
{
key = it.Key.PrivateKey;
break;
}
}
}
}
else
{
key = p.Settings.Cipher.KeyAgreementKeyPair.Key;
}
if (key != null && pub == null)
{
//Get Ephemeral public key.
int keySize = len / 2;
pub = GXPublicKey.FromRawBytes(bb.SubArray(0, keySize));
}
}
else if (value == (int)KeyAgreementScheme.StaticUnifiedModel)
{
len = GXCommon.GetObjectCount(data);
if (len != 0)
{
throw new ArgumentException("Invalid key parameters");
}
if (p.Xml != null)
{
//Find key agreement key using subject.
string subject = GXAsn1Converter.SystemTitleToSubject(p.RecipientSystemTitle);
foreach (KeyValuePair <GXPkcs8, GXx509Certificate> it in p.Settings.Keys)
{
if (it.Value.KeyUsage == ASN.Enums.KeyUsage.KeyAgreement && it.Value.Subject.Contains(subject))
{
key = it.Key.PrivateKey;
break;
}
}
if (key != null)
{
//Find key agreement key using subject.
subject = GXAsn1Converter.SystemTitleToSubject(p.Settings.SourceSystemTitle);
foreach (KeyValuePair <GXPkcs8, GXx509Certificate> it in p.Settings.Keys)
{
if (it.Value.KeyUsage == ASN.Enums.KeyUsage.KeyAgreement && it.Value.Subject.Contains(subject))
{
pub = it.Value.PublicKey;
break;
}
}
}
}
else
{
key = p.Settings.Cipher.KeyAgreementKeyPair.Key;
pub = p.Settings.Cipher.KeyAgreementKeyPair.Value;
}
}
else
{
throw new ArgumentException("key-parameters");
}
}
len = GXCommon.GetObjectCount(data);
if (len > data.Available)
{
throw new Exception("Not enought data.");
}
p.CipheredContent = data.Remaining();
byte sc = data.GetUInt8();
p.SecuritySuite = (SecuritySuite)(sc & 0x3);
p.Security = (Security)(sc & 0x30);
if ((sc & 0x80) != 0)
{
System.Diagnostics.Debug.WriteLine("Compression is used.");
}
if ((sc & 0x40) != 0)
{
System.Diagnostics.Debug.WriteLine("Error: Key_Set is used.");
}
if ((sc & 0x20) != 0)
{
System.Diagnostics.Debug.WriteLine("Encryption is applied.");
}
if (key != null)
{
if (value == (int)KeyAgreementScheme.OnePassDiffieHellman)
{
GXEcdsa c = new GXEcdsa(key);
//Get Ephemeral signing key and verify it.
byte[] z = c.GenerateSecret(pub);
System.Diagnostics.Debug.WriteLine("Originator ephemeral public key: " + pub.ToHex());
System.Diagnostics.Debug.WriteLine("Recipient private agreement key: " + key.ToHex());
System.Diagnostics.Debug.WriteLine("Shared secret:" + GXCommon.ToHex(z, true));
GXByteBuffer kdf = new GXByteBuffer();
kdf.Set(GXSecure.GenerateKDF(p.SecuritySuite, z,
p.SecuritySuite == SecuritySuite.Ecdsa256 ? AlgorithmId.AesGcm128 : AlgorithmId.AesGcm256,
p.SystemTitle,
p.RecipientSystemTitle,
null, null));
System.Diagnostics.Debug.WriteLine("KDF:" + kdf.ToString());
p.BlockCipherKey = kdf.SubArray(0, 16);
}
else if (value == (int)KeyAgreementScheme.StaticUnifiedModel)
{
GXEcdsa c = new GXEcdsa(key);
byte[] z = c.GenerateSecret(pub);
System.Diagnostics.Debug.WriteLine("Shared secret:" + GXCommon.ToHex(z, true));
GXByteBuffer kdf = new GXByteBuffer();
kdf.Set(GXSecure.GenerateKDF(p.SecuritySuite, z,
p.SecuritySuite == SecuritySuite.Ecdsa256 ? AlgorithmId.AesGcm128 : AlgorithmId.AesGcm256,
p.SystemTitle,
transactionId.Array(),
p.RecipientSystemTitle,
null));
System.Diagnostics.Debug.WriteLine("KDF:" + kdf.ToString());
p.BlockCipherKey = kdf.SubArray(0, 16);
}
else
{
throw new ArgumentOutOfRangeException("Invalid Key-id value.");
}
}
UInt32 invocationCounter = data.GetUInt32();
p.InvocationCounter = invocationCounter;
System.Diagnostics.Debug.WriteLine("Decrypt settings: " + p.ToString());
System.Diagnostics.Debug.WriteLine("Encrypted: " + GXCommon.ToHex(data.Data,
false, data.Position, data.Size - data.Position));
byte[] tag = new byte[12];
byte[] encryptedData;
int length;
if (p.Security == Security.Authentication)
{
length = data.Size - data.Position - 12;
encryptedData = new byte[length];
data.Get(encryptedData);
data.Get(tag);
// Check tag.
EncryptAesGcm(p, encryptedData);
if (!GXDLMSChipperingStream.TagsEquals(tag, p.CountTag))
{
if (p.Xml == null)
{
throw new GXDLMSException("Decrypt failed. Invalid tag.");
}
else
{
p.Xml.AppendComment("Decrypt failed. Invalid tag.");
}
}
return(encryptedData);
}
byte[] ciphertext = null;
if (p.Security == Security.Encryption)
{
length = data.Size - data.Position;
ciphertext = new byte[length];
data.Get(ciphertext);
}
else if (p.Security == Security.AuthenticationEncryption)
{
length = data.Size - data.Position - 12;
ciphertext = new byte[length];
data.Get(ciphertext);
data.Get(tag);
}
byte[] aad = GetAuthenticatedData(p, ciphertext),
iv = GetNonse(invocationCounter, p.SystemTitle);
GXDLMSChipperingStream gcm = new GXDLMSChipperingStream(p.Security, true,
p.BlockCipherKey, aad, iv, tag);
gcm.Write(ciphertext);
byte[] decrypted = gcm.FlushFinalBlock();
System.Diagnostics.Debug.WriteLine("Decrypted: " + GXCommon.ToHex(decrypted, true));
if (p.Security != Security.Encryption)
{
if (!GXCommon.Compare(gcm.GetTag(), tag))
{
if (p.Xml == null)
{
throw new Exception("Decrypt failed. Invalid authentication tag.");
}
p.Xml.AppendComment("Decrypt failed. Invalid authentication tag.");
}
}
return(decrypted);
}
/// <summary>
/// Constructor value.
/// </summary>
/// <param name="value">Byte array Data in MSB format.</param>
public GXBigInteger(GXByteBuffer value)
{
FromByteBuffer(value);
}
static internal byte[] EncryptAesGcm(AesGcmParameter param, byte[] plainText)
{
System.Diagnostics.Debug.WriteLine("Encrypt settings: " + param.ToString());
param.CountTag = null;
GXByteBuffer data = new GXByteBuffer();
if (param.Type == CountType.Packet)
{
data.SetUInt8((byte)((byte)param.Security | (byte)param.SecuritySuite));
}
byte[] tmp = BitConverter.GetBytes((UInt32)param.InvocationCounter).Reverse().ToArray();
byte[] aad = GetAuthenticatedData(param, plainText);
GXDLMSChipperingStream gcm = new GXDLMSChipperingStream(param.Security, true, param.BlockCipherKey,
aad, GetNonse((UInt32)param.InvocationCounter, param.SystemTitle), null);
// Encrypt the secret message
if (param.Security != Security.Authentication)
{
gcm.Write(plainText);
}
byte[] ciphertext = gcm.FlushFinalBlock();
if (param.Security == Security.Authentication)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
if ((param.Type & CountType.Data) != 0)
{
data.Set(plainText);
}
if ((param.Type & CountType.Tag) != 0)
{
param.CountTag = gcm.GetTag();
data.Set(param.CountTag);
}
}
else if (param.Security == Security.Encryption)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
data.Set(ciphertext);
}
else if (param.Security == Security.AuthenticationEncryption)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
if ((param.Type & CountType.Data) != 0)
{
data.Set(ciphertext);
}
if ((param.Type & CountType.Tag) != 0)
{
param.CountTag = gcm.GetTag();
data.Set(param.CountTag);
}
}
else
{
throw new ArgumentOutOfRangeException("security");
}
if (param.Type == CountType.Packet)
{
GXByteBuffer tmp2 = new GXByteBuffer((ushort)(10 + data.Size));
tmp2.SetUInt8(param.Tag);
if (param.Tag == (int)Command.GeneralGloCiphering ||
param.Tag == (int)Command.GeneralDedCiphering ||
param.Tag == (int)Command.DataNotification)
{
if (!param.IgnoreSystemTitle)
{
GXCommon.SetObjectCount(param.SystemTitle.Length, tmp2);
tmp2.Set(param.SystemTitle);
}
else
{
tmp2.SetUInt8(0);
}
}
GXCommon.SetObjectCount(data.Size, tmp2);
tmp2.Set(data.Array());
return(tmp2.Array());
}
byte[] crypted = data.Array();
System.Diagnostics.Debug.WriteLine("Crypted: " + GXCommon.ToHex(crypted, true));
return(crypted);
}
void IGXDLMSBase.SetValue(GXDLMSSettings settings, int index, object value)
{
if (index == 1)
{
if (value is string)
{
LogicalName = value.ToString();
}
else
{
LogicalName = GXDLMSClient.ChangeType((byte[])value, DataType.OctetString).ToString();
}
}
else if (index == 2)
{
ObjectList.Clear();
if (value != null)
{
foreach (Object[] item in (Object[])value)
{
ObjectType type = (ObjectType)Convert.ToInt32(item[0]);
int version = Convert.ToInt32(item[1]);
String ln = GXDLMSObject.ToLogicalName((byte[])item[2]);
GXDLMSObject obj = null;
if (settings.Objects != null)
{
obj = settings.Objects.FindByLN(type, ln);
}
if (obj == null)
{
obj = Gurux.DLMS.GXDLMSClient.CreateObject(type);
obj.LogicalName = ln;
obj.Version = version;
}
//Unknown objects are not shown.
if (obj is IGXDLMSBase)
{
UpdateAccessRights(obj, (Object[])item[3]);
ObjectList.Add(obj);
}
}
}
}
else if (index == 3)
{
if (value != null)
{
ClientSAP = Convert.ToByte(((Object[])value)[0]);
ServerSAP = Convert.ToUInt16(((Object[])value)[1]);
}
}
else if (index == 4)
{
//Value of the object identifier encoded in BER
if (value is byte[])
{
GXByteBuffer arr = new GXByteBuffer(value as byte[]);
if (arr.GetUInt8(0) == 0x60)
{
ApplicationContextName.JointIsoCtt = 0;
++arr.Position;
ApplicationContextName.Country = 0;
++arr.Position;
ApplicationContextName.CountryName = 0;
++arr.Position;
ApplicationContextName.IdentifiedOrganization = arr.GetUInt8();
ApplicationContextName.DlmsUA = arr.GetUInt8();
ApplicationContextName.ApplicationContext = arr.GetUInt8();
ApplicationContextName.ContextId = arr.GetUInt8();
}
else
{
//Get Tag and Len.
if (arr.GetUInt8() != (int)BerType.Integer && arr.GetUInt8() != 7)
{
throw new ArgumentOutOfRangeException();
}
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.JointIsoCtt = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.Country = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x12)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.CountryName = arr.GetUInt16();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.IdentifiedOrganization = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.DlmsUA = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.ApplicationContext = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.ContextId = arr.GetUInt8();
}
}
else if (value != null)
{
Object[] arr = (Object[])value;
ApplicationContextName.JointIsoCtt = Convert.ToByte(arr[0]);
ApplicationContextName.Country = Convert.ToByte(arr[1]);
ApplicationContextName.CountryName = Convert.ToUInt16(arr[2]);
ApplicationContextName.IdentifiedOrganization = Convert.ToByte(arr[3]);
ApplicationContextName.DlmsUA = Convert.ToByte(arr[4]);
ApplicationContextName.ApplicationContext = Convert.ToByte(arr[5]);
ApplicationContextName.ContextId = Convert.ToByte(arr[6]);
}
}
else if (index == 5)
{
if (value != null)
{
Object[] arr = (Object[])value;
XDLMSContextInfo.Conformance = arr[0].ToString();
XDLMSContextInfo.MaxReceivePduSize = Convert.ToUInt16(arr[1]);
XDLMSContextInfo.MaxSendPpuSize = Convert.ToUInt16(arr[2]);
XDLMSContextInfo.DlmsVersionNumber = Convert.ToByte(arr[3]);
XDLMSContextInfo.QualityOfService = Convert.ToSByte(arr[4]);
XDLMSContextInfo.CypheringInfo = (byte[])arr[5];
}
}
else if (index == 6)
{
//Value of the object identifier encoded in BER
if (value is byte[])
{
GXByteBuffer arr = new GXByteBuffer(value as byte[]);
if (arr.GetUInt8(0) == 0x60)
{
AuthenticationMechanismMame.JointIsoCtt = 0;
++arr.Position;
AuthenticationMechanismMame.Country = 0;
++arr.Position;
AuthenticationMechanismMame.CountryName = 0;
++arr.Position;
AuthenticationMechanismMame.IdentifiedOrganization = arr.GetUInt8();
AuthenticationMechanismMame.DlmsUA = arr.GetUInt8();
AuthenticationMechanismMame.AuthenticationMechanismName = arr.GetUInt8();
AuthenticationMechanismMame.MechanismId = (Authentication)arr.GetUInt8();
}
else
{
//Get Tag and Len.
if (arr.GetUInt8() != (int)BerType.Integer && arr.GetUInt8() != 7)
{
throw new ArgumentOutOfRangeException();
}
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.JointIsoCtt = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.Country = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x12)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.CountryName = arr.GetUInt16();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.IdentifiedOrganization = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.DlmsUA = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.AuthenticationMechanismName = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismMame.MechanismId = (Authentication)arr.GetUInt8();
}
}
else if (value != null)
{
Object[] arr = (Object[])value;
AuthenticationMechanismMame.JointIsoCtt = Convert.ToByte(arr[0]);
AuthenticationMechanismMame.Country = Convert.ToByte(arr[1]);
AuthenticationMechanismMame.CountryName = Convert.ToUInt16(arr[2]);
AuthenticationMechanismMame.IdentifiedOrganization = Convert.ToByte(arr[3]);
AuthenticationMechanismMame.DlmsUA = Convert.ToByte(arr[4]);
AuthenticationMechanismMame.AuthenticationMechanismName = Convert.ToByte(arr[5]);
AuthenticationMechanismMame.MechanismId = (Authentication)Convert.ToByte(arr[6]);
}
}
else if (index == 7)
{
Secret = (byte[])value;
}
else if (index == 8)
{
if (value == null)
{
AssociationStatus = AssociationStatus.NonAssociated;
}
else
{
AssociationStatus = (AssociationStatus)Convert.ToInt32(value);
}
}
else if (index == 9)
{
SecuritySetupReference = GXDLMSClient.ChangeType((byte[])value, DataType.OctetString).ToString();
}
else
{
throw new ArgumentException("SetValue failed. Invalid attribute index.");
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
return(MaxHops);
}
if (e.Index == 3)
{
return(WeakLqiValue);
}
if (e.Index == 4)
{
return(SecurityLevel);
}
if (e.Index == 5)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (PrefixTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(PrefixTable.Length, bb);
foreach (var it in PrefixTable)
{
GXCommon.SetData(settings, bb, GXDLMSConverter.GetDLMSDataType(it), it);
}
}
return(bb.Array());
}
if (e.Index == 6)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (RoutingConfiguration == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(RoutingConfiguration.Count, bb);
foreach (GXDLMSRoutingConfiguration it in RoutingConfiguration)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(14);
GXCommon.SetData(settings, bb, DataType.UInt8, it.NetTraversalTime);
GXCommon.SetData(settings, bb, DataType.UInt16, it.RoutingTableEntryTtl);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Kr);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Km);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Kc);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Kq);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Kh);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Krt);
GXCommon.SetData(settings, bb, DataType.UInt8, it.RreqRetries);
GXCommon.SetData(settings, bb, DataType.UInt8, it.RreqRerrWait);
GXCommon.SetData(settings, bb, DataType.UInt16, it.BlacklistTableEntryTtl);
GXCommon.SetData(settings, bb, DataType.Boolean, it.UnicastRreqGenEnable);
GXCommon.SetData(settings, bb, DataType.Boolean, it.RlcEnabled);
GXCommon.SetData(settings, bb, DataType.UInt8, it.AddRevLinkCost);
}
}
return(bb.Array());
}
if (e.Index == 7)
{
return(BroadcastLogTableEntryTtl);
}
if (e.Index == 8)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (RoutingTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(RoutingTable.Count, bb);
foreach (GXDLMSRoutingTable it in RoutingTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(6);
GXCommon.SetData(settings, bb, DataType.UInt16, it.DestinationAddress);
GXCommon.SetData(settings, bb, DataType.UInt16, it.NextHopAddress);
GXCommon.SetData(settings, bb, DataType.UInt16, it.RouteCost);
GXCommon.SetData(settings, bb, DataType.UInt8, it.HopCount);
GXCommon.SetData(settings, bb, DataType.UInt8, it.WeakLinkCount);
GXCommon.SetData(settings, bb, DataType.UInt16, it.ValidTime);
}
}
return(bb.Array());
}
if (e.Index == 9)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (ContextInformationTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(ContextInformationTable.Count, bb);
foreach (GXDLMSContextInformationTable it in ContextInformationTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(5);
GXCommon.SetData(settings, bb, DataType.BitString, it.CID);
if (it.Context == null)
{
GXCommon.SetData(settings, bb, DataType.UInt8, 0);
}
else
{
GXCommon.SetData(settings, bb, DataType.UInt8, it.Context.Length);
}
GXCommon.SetData(settings, bb, DataType.OctetString, it.Context);
GXCommon.SetData(settings, bb, DataType.Boolean, it.Compression);
GXCommon.SetData(settings, bb, DataType.UInt16, it.ValidLifetime);
}
}
return(bb.Array());
}
if (e.Index == 10)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (BlacklistTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(BlacklistTable.Count, bb);
foreach (var it in BlacklistTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(2);
GXCommon.SetData(settings, bb, DataType.UInt16, it.Key);
GXCommon.SetData(settings, bb, DataType.UInt16, it.Value);
}
}
return(bb.Array());
}
if (e.Index == 11)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (BroadcastLogTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(BroadcastLogTable.Count, bb);
foreach (GXDLMSBroadcastLogTable it in BroadcastLogTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(3);
GXCommon.SetData(settings, bb, DataType.UInt16, it.SourceAddress);
GXCommon.SetData(settings, bb, DataType.UInt8, it.SequenceNumber);
GXCommon.SetData(settings, bb, DataType.UInt16, it.ValidTime);
}
}
return(bb.Array());
}
if (e.Index == 12)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (GroupTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(GroupTable.Length, bb);
foreach (UInt16 it in GroupTable)
{
GXCommon.SetData(settings, bb, DataType.UInt16, it);
}
}
return(bb.Array());
}
if (e.Index == 13)
{
return(MaxJoinWaitTime);
}
if (e.Index == 14)
{
return(PathDiscoveryTime);
}
if (e.Index == 15)
{
return(ActiveKeyIndex);
}
if (e.Index == 16)
{
return(MetricType);
}
if (e.Index == 17)
{
return(CoordShortAddress);
}
if (e.Index == 18)
{
return(DisableDefaultRouting);
}
if (e.Index == 19)
{
return(DeviceType);
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
GXByteBuffer bb;
switch (e.Index)
{
case 1:
return(GXCommon.LogicalNameToBytes(LogicalName));
case 2:
if (string.IsNullOrEmpty(Operator))
{
return(null);
}
return(ASCIIEncoding.ASCII.GetBytes(Operator));
case 3:
return(Status);
case 4:
return(CircuitSwitchStatus);
case 5:
return(PacketSwitchStatus);
case 6:
bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
if (Version == 0)
{
bb.SetUInt8(4);
GXCommon.SetData(settings, bb, DataType.UInt16, CellInfo.CellId);
}
else
{
bb.SetUInt8(7);
GXCommon.SetData(settings, bb, DataType.UInt32, CellInfo.CellId);
}
GXCommon.SetData(settings, bb, DataType.UInt16, CellInfo.LocationId);
GXCommon.SetData(settings, bb, DataType.UInt8, CellInfo.SignalQuality);
GXCommon.SetData(settings, bb, DataType.UInt8, CellInfo.Ber);
if (Version > 0)
{
GXCommon.SetData(settings, bb, DataType.UInt16, CellInfo.MobileCountryCode);
GXCommon.SetData(settings, bb, DataType.UInt16, CellInfo.MobileNetworkCode);
GXCommon.SetData(settings, bb, DataType.UInt32, CellInfo.ChannelNumber);
}
return(bb.Array());
case 7:
bb = new GXByteBuffer();
bb.SetUInt8(DataType.Array);
if (AdjacentCells == null)
{
bb.SetUInt8(0);
}
else
{
bb.SetUInt8((byte)AdjacentCells.Count);
}
foreach (AdjacentCell it in AdjacentCells)
{
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(2);
GXCommon.SetData(settings, bb, Version == 0 ? DataType.UInt16 : DataType.UInt32, it.CellId);
GXCommon.SetData(settings, bb, DataType.UInt8, it.SignalQuality);
}
return(bb.Array());
case 8:
return(CaptureTime);
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
/// <summary>
/// Import server settings and COSEM objects from GXDLMSDirector trace.
/// </summary>
/// <param name="server">Server where settings are updated.</param>
/// <param name="data">GXDLMSDirector trace in byte array.</param>
public static void Import(GXDLMSServer server, byte[] data)
{
GXDLMSTranslator translator = new GXDLMSTranslator(TranslatorOutputType.StandardXml);
translator.CompletePdu = true;
translator.PduOnly = true;
translator.OmitXmlNameSpace = translator.OmitXmlDeclaration = true;
XmlDocument doc = new XmlDocument();
List <ValueEventArgs> targets = new List <ValueEventArgs>();
GXDLMSSettings settings = new GXDLMSSettings(true);
GXByteBuffer pdu = new GXByteBuffer();
GXByteBuffer bb = new GXByteBuffer(data);
server.InterfaceType = GXDLMSTranslator.GetDlmsFraming(bb);
bool lastBlock = true;
GXByteBuffer val = new DLMS.GXByteBuffer();
while (translator.FindNextFrame(bb, pdu, server.InterfaceType))
{
String xml = translator.MessageToXml(bb);
if (xml != "")
{
doc.LoadXml(xml);
foreach (XmlNode node in doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes)
{
string name = doc.ChildNodes[doc.ChildNodes.Count - 1].Name;
if (name == "get-request")
{
server.UseLogicalNameReferencing = true;
GetLN(settings.Objects, targets, node.ChildNodes);
}
else if (name == "read-request")
{
List <short> items = GetSN(node.ChildNodes);
server.UseLogicalNameReferencing = false;
foreach (short it in items)
{
GXSNInfo i = GXDLMSSNCommandHandler.FindSNObject(settings.Objects, Convert.ToUInt16((it) & 0xFFFF));
targets.Add(new ValueEventArgs(i.Item, i.Index, 0, null));
}
}
else if (name == "read-response" ||
name == "get-response")
{
if (targets != null)
{
List <string> items;
if (server.UseLogicalNameReferencing)
{
items = GetLNValues(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes);
}
else
{
items = GetSNValues(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes);
}
int pos = 0;
foreach (string it in items)
{
if ("read-write-denied".Equals(it) ||
"scope-of-access-violated".Equals(it) ||
"object-unavailable".Equals(it))
{
ValueEventArgs ve = targets[pos];
ve.Target.SetAccess(ve.Index, AccessMode.NoAccess);
continue;
}
try
{
if (server.UseLogicalNameReferencing)
{
lastBlock = IsLastBlock(doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes);
}
val.Set(translator.XmlToData(it));
if (lastBlock)
{
if (settings.Objects.Count == 0)
{
GXDLMSClient c = new GXDLMSClient();
c.UseLogicalNameReferencing = server.UseLogicalNameReferencing;
settings.Objects = c.ParseObjects(val, true);
//Update OBIS code description.
GXDLMSConverter converter = new GXDLMSConverter();
converter.UpdateOBISCodeInformation(settings.Objects);
}
else
{
ValueEventArgs ve = targets[pos];
GXDataInfo info = new GXDataInfo();
ve.Value = GXCommon.GetData(server.Settings, val, info);
if (ve.Value is byte[])
{
DataType tp = ve.Target.GetUIDataType(ve.Index);
if (tp != DataType.None)
{
ve.Value = GXDLMSClient.ChangeType((byte[])ve.Value, tp, false);
}
}
((IGXDLMSBase)ve.Target).SetValue(settings, ve);
}
val.Clear();
}
}
catch (Exception)
{
ValueEventArgs ve = targets[pos];
ve.Target.SetAccess(ve.Index, AccessMode.NoAccess);
}
++pos;
}
if (lastBlock)
{
targets.Clear();
}
}
}
}
}
}
server.Items.Clear();
server.Items.AddRange(settings.Objects);
}
private static byte[] GetAuthenticatedData(Gurux.DLMS.Enums.Security security, byte[] AuthenticationKey, byte[] plainText)
{
if (security == Gurux.DLMS.Enums.Security.Authentication)
{
GXByteBuffer tmp2 = new GXByteBuffer();
tmp2.SetUInt8((byte)security);
tmp2.Set(AuthenticationKey);
tmp2.Set(plainText);
return tmp2.Array();
}
else if (security == Gurux.DLMS.Enums.Security.Encryption)
{
return AuthenticationKey;
}
else if (security == Gurux.DLMS.Enums.Security.AuthenticationEncryption)
{
GXByteBuffer tmp2 = new GXByteBuffer();
tmp2.SetUInt8((byte)security);
tmp2.Set(AuthenticationKey);
return tmp2.Array();
}
return null;
}
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)
{
int cnt = ListeningWindow.Count;
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
//Add count
GXCommon.SetObjectCount(cnt, data);
if (cnt != 0)
{
foreach (var it in ListeningWindow)
{
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 == 4)
{
return Status;
}
if (e.Index == 5)
{
return NumberOfCalls;
}
if (e.Index == 6)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Structure);
//Add count
GXCommon.SetObjectCount(2, data);
GXCommon.SetData(settings, data, DataType.UInt8, NumberOfRingsInListeningWindow);
GXCommon.SetData(settings, data, DataType.UInt8, NumberOfRingsOutListeningWindow);
return data.Array();
}
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
static internal byte[] EncryptAesGcm(AesGcmParameter param, byte[] plainText)
{
System.Diagnostics.Debug.WriteLine("Encrypt settings: " + param.ToString());
param.CountTag = null;
GXByteBuffer data = new GXByteBuffer();
if (param.Type == CountType.Packet)
{
data.SetUInt8((byte)param.Security);
}
byte[] tmp = BitConverter.GetBytes(param.FrameCounter).Reverse().ToArray();
byte[] aad = GetAuthenticatedData(param.Security, param.AuthenticationKey, plainText);
GXDLMSChipperingStream gcm = new GXDLMSChipperingStream(param.Security, true, param.BlockCipherKey,
aad, GetNonse(param.FrameCounter, param.SystemTitle), null);
// Encrypt the secret message
if (param.Security != Gurux.DLMS.Enums.Security.Authentication)
{
gcm.Write(plainText);
}
byte[] ciphertext = gcm.FlushFinalBlock();
if (param.Security == Gurux.DLMS.Enums.Security.Authentication)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
if ((param.Type & CountType.Data) != 0)
{
data.Set(plainText);
}
if ((param.Type & CountType.Tag) != 0)
{
param.CountTag = gcm.GetTag();
data.Set(param.CountTag);
}
}
else if (param.Security == Gurux.DLMS.Enums.Security.Encryption)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
data.Set(ciphertext);
}
else if (param.Security == Gurux.DLMS.Enums.Security.AuthenticationEncryption)
{
if (param.Type == CountType.Packet)
{
data.Set(tmp);
}
if ((param.Type & CountType.Data) != 0)
{
data.Set(ciphertext);
}
if ((param.Type & CountType.Tag) != 0)
{
param.CountTag = gcm.GetTag();
data.Set(param.CountTag);
}
}
else
{
throw new ArgumentOutOfRangeException("security");
}
if (param.Type == CountType.Packet)
{
GXByteBuffer tmp2 = new GXByteBuffer((ushort)(10 + data.Size));
tmp2.SetUInt8(param.Tag);
GXCommon.SetObjectCount(data.Size, tmp2);
tmp2.Set(data.Array());
return tmp2.Array();
}
byte[] crypted = data.Array();
System.Diagnostics.Debug.WriteLine("Crypted: " + GXCommon.ToHex(crypted, true));
return crypted;
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
return(GXCommon.LogicalNameToBytes(DataLinkLayerReference));
}
if (e.Index == 3)
{
return(FromAddressString(IPAddress));
}
if (e.Index == 4)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (MulticastIPAddress == null)
{
//Object count is zero.
data.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(MulticastIPAddress.Length, data);
foreach (string it in MulticastIPAddress)
{
GXCommon.SetData(settings, data, DataType.UInt32, FromAddressString(it));
}
}
return(data.Array());
}
if (e.Index == 5)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (IPOptions == null)
{
//Object count is zero.
data.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(IPOptions.Length, data);
foreach (GXDLMSIp4SetupIpOption it in IPOptions)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8(3);
GXCommon.SetData(settings, data, DataType.UInt8, it.Type);
GXCommon.SetData(settings, data, DataType.UInt8, it.Length);
GXCommon.SetData(settings, data, DataType.OctetString, it.Data);
}
}
return(data.Array());
}
if (e.Index == 6)
{
//If subnet mask is not given.
return(FromAddressString(SubnetMask));
}
if (e.Index == 7)
{
return(FromAddressString(GatewayIPAddress));
}
if (e.Index == 8)
{
return(this.UseDHCP);
}
if (e.Index == 9)
{
return(FromAddressString(PrimaryDNSAddress));
}
if (e.Index == 10)
{
return(FromAddressString(SecondaryDNSAddress));
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
private static void GetValue(GXByteBuffer bb, IList <object> objects, GXAsn1Settings s)
{
int len;
short type;
IList <object> tmp;
byte[] tmp2;
type = bb.GetUInt8();
len = GXCommon.GetObjectCount(bb);
if (len > bb.Available)
{
throw new OutOfMemoryException("GXAsn1Converter.GetValue");
}
int connectPos = 0;
if (s != null)
{
connectPos = s.XmlLength;
}
int start = bb.Position;
string tagString = null;
if (s != null)
{
s.AppendSpaces();
if (type == (byte)BerType.Integer)
{
if (len == 1 || len == 2 || len == 4 || len == 8)
{
tagString = s.GetTag((short)-len);
}
else
{
tagString = s.GetTag((byte)BerType.Integer);
}
}
else
{
tagString = s.GetTag(type);
}
s.Append("<" + tagString + ">");
}
switch (type)
{
case (byte)(BerType.Constructed | BerType.Context):
case ((byte)(BerType.Constructed | BerType.Context) | 1):
case ((byte)(BerType.Constructed | BerType.Context) | 2):
case ((byte)(BerType.Constructed | BerType.Context) | 3):
if (s != null)
{
s.Increase();
}
tmp = new GXAsn1Context();
((GXAsn1Context)tmp).Index = type & 0xF;
objects.Add(tmp);
while (bb.Position < start + len)
{
GetValue(bb, tmp, s);
}
if (s != null)
{
s.Decrease();
}
break;
case (byte)(BerType.Constructed | BerType.Sequence):
if (s != null)
{
s.Increase();
}
tmp = new GXAsn1Sequence();
objects.Add(tmp);
int cnt = 0;
while (bb.Position < start + len)
{
++cnt;
GetValue(bb, tmp, s);
}
if (s != null)
{
// Append comment.
s.AppendComment(connectPos, Convert.ToString(cnt) + " elements.");
s.Decrease();
}
break;
case (byte)(BerType.Constructed | BerType.Set):
if (s != null)
{
s.Increase();
}
tmp = new List <object>();
GetValue(bb, tmp, s);
if (tmp[0] is GXAsn1Sequence)
{
tmp = (GXAsn1Sequence)tmp[0];
objects.Add(new KeyValuePair <object, object>(tmp[0], tmp[1]));
}
else
{
KeyValuePair <object, object> e = new KeyValuePair <object, object>(tmp, null);
objects.Add(e);
}
if (s != null)
{
s.Decrease();
}
break;
case (byte)BerType.ObjectIdentifier:
GXAsn1ObjectIdentifier oi = new GXAsn1ObjectIdentifier(bb, len);
objects.Add(oi);
if (s != null)
{
string str = oi.Description;
if (str != null)
{
s.AppendComment(connectPos, str);
}
s.Append(oi.ToString());
}
break;
case (byte)BerType.PrintableString:
objects.Add(bb.GetString(len));
if (s != null)
{
s.Append(Convert.ToString(objects[objects.Count - 1]));
}
break;
case (byte)BerType.Utf8StringTag:
objects.Add(new GXAsn1Utf8String(bb.GetString(bb.Position, len)));
bb.Position = bb.Position + len;
if (s != null)
{
s.Append(Convert.ToString(objects[objects.Count - 1]));
}
break;
case (byte)BerType.Ia5String:
objects.Add(new GXAsn1Ia5String(bb.GetString(len)));
if (s != null)
{
s.Append(Convert.ToString(objects[objects.Count - 1]));
}
break;
case (byte)BerType.Integer:
if (len == 1)
{
objects.Add(bb.GetInt8());
}
else if (len == 2)
{
objects.Add(bb.GetInt16());
}
else if (len == 4)
{
objects.Add(bb.GetInt32());
}
else
{
tmp2 = new byte[len];
bb.Get(tmp2);
objects.Add(new GXAsn1Integer(tmp2));
}
if (s != null)
{
s.Append(Convert.ToString(objects[objects.Count - 1]));
}
break;
case (byte)BerType.Null:
objects.Add(null);
break;
case (byte)BerType.BitString:
GXAsn1BitString tmp3 = new GXAsn1BitString(bb.SubArray(bb.Position, len));
objects.Add(tmp3);
bb.Position = bb.Position + len;
if (s != null)
{
// Append comment.
s.AppendComment(connectPos, Convert.ToString(tmp3.Length) + " bit.");
s.Append(tmp3.asString());
}
break;
case (byte)BerType.UtcTime:
tmp2 = new byte[len];
bb.Get(tmp2);
objects.Add(GetUtcTime(ASCIIEncoding.ASCII.GetString(tmp2)));
if (s != null)
{
s.Append(((DateTimeOffset)objects[objects.Count - 1]).UtcDateTime.ToString("yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture));
}
break;
case (byte)BerType.GeneralizedTime:
tmp2 = new byte[len];
bb.Get(tmp2);
objects.Add(GXCommon.GetGeneralizedTime(ASCIIEncoding.ASCII.GetString(tmp2)));
if (s != null)
{
s.Append(Convert.ToString(objects[objects.Count - 1]));
}
break;
case (byte)BerType.Context:
case (byte)BerType.Context | 1:
tmp2 = new byte[len];
bb.Get(tmp2);
objects.Add(tmp2);
if (s != null)
{
s.Append(GXCommon.ToHex(tmp2, false));
}
break;
case (byte)BerType.OctetString:
int t = bb.GetUInt8(bb.Position);
switch (t)
{
case (byte)(BerType.Constructed | BerType.Sequence):
case (byte)BerType.BitString:
if (s != null)
{
s.Increase();
}
GetValue(bb, objects, s);
if (s != null)
{
s.Decrease();
}
break;
default:
tmp2 = new byte[len];
bb.Get(tmp2);
objects.Add(tmp2);
if (s != null)
{
s.Append(GXCommon.ToHex(tmp2, false));
}
break;
}
break;
case (byte)BerType.Boolean:
bool b = bb.GetUInt8() != 0;
objects.Add(b);
if (s != null)
{
s.Append(Convert.ToString(b));
}
break;
default:
throw new System.ArgumentException("Invalid type: " + type);
}
if (s != null)
{
s.Append("</" + tagString + ">\r\n");
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
return(GXCommon.LogicalNameToBytes(PHYReference));
}
if (e.Index == 3)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (LCPOptions == null)
{
data.SetUInt8(0);
}
else
{
data.SetUInt8((byte)LCPOptions.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>
/// Convert ASN.1 PDU bytes to XML.
/// </summary>
/// <param name="value">Bytes to convert. </param>
/// <returns> Converted XML. </returns>
public static string PduToXml(GXByteBuffer value)
{
return(PduToXml(value, false));
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
GXByteBuffer buff = new GXByteBuffer();
object ret;
switch (e.Index)
{
case 1:
ret = GXCommon.LogicalNameToBytes(LogicalName);
break;
case 2:
ret = GetPushObjectList(settings);
break;
case 3:
buff.SetUInt8(DataType.Structure);
buff.SetUInt8(3);
GXCommon.SetData(settings, buff, DataType.Enum, Service);
if (Destination != null)
{
GXCommon.SetData(settings, buff, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(Destination));
}
else
{
GXCommon.SetData(settings, buff, DataType.OctetString, null);
}
GXCommon.SetData(settings, buff, DataType.Enum, Message);
ret = buff.Array();
break;
case 4:
buff.SetUInt8(DataType.Array);
GXCommon.SetObjectCount(CommunicationWindow.Count, buff);
foreach (KeyValuePair <GXDateTime, GXDateTime> it in CommunicationWindow)
{
buff.SetUInt8(DataType.Structure);
buff.SetUInt8(2);
GXCommon.SetData(settings, buff, DataType.OctetString, it.Key);
GXCommon.SetData(settings, buff, DataType.OctetString, it.Value);
}
ret = buff.Array();
break;
case 5:
ret = RandomisationStartInterval;
break;
case 6:
ret = NumberOfRetries;
break;
case 7:
ret = RepetitionDelay;
break;
default:
e.Error = ErrorCode.ReadWriteDenied;
ret = null;
break;
}
return(ret);
}
private void Init(byte[] data)
{
Attributes = new List <KeyValuePair <PkcsObjectIdentifier, object[]> >();
GXAsn1Sequence seq = (GXAsn1Sequence)GXAsn1Converter.FromByteArray(data);
if (seq.Count < 3)
{
throw new System.ArgumentException("Wrong number of elements in sequence.");
}
/////////////////////////////
// CertificationRequestInfo ::= SEQUENCE {
// version INTEGER { v1(0) } (v1,...),
// subject Name,
// subjectPKInfo SubjectPublicKeyInfo{{ PKInfoAlgorithms }},
// attributes [0] Attributes{{ CRIAttributes }}
// }
GXAsn1Sequence reqInfo = (GXAsn1Sequence)seq[0];
Version = (CertificateVersion)(sbyte)reqInfo[0];
Subject = GXAsn1Converter.GetSubject((GXAsn1Sequence)reqInfo[1]);
// subject Public key info.
GXAsn1Sequence subjectPKInfo = (GXAsn1Sequence)reqInfo[2];
if (reqInfo.Count > 3)
{
//PkcsObjectIdentifier
foreach (GXAsn1Sequence it in (GXAsn1Context)reqInfo[3])
{
List <object> values = new List <object>();
foreach (object v in (List <object>)((KeyValuePair <object, object>)it[1]).Key)
{
values.Add(v);
}
Attributes.Add(new KeyValuePair <PkcsObjectIdentifier, object[]>(PkcsObjectIdentifierConverter.FromString(it[0].ToString()), values.ToArray()));
}
}
GXAsn1Sequence tmp = (GXAsn1Sequence)subjectPKInfo[0];
Algorithm = X9ObjectIdentifierConverter.FromString(tmp[0].ToString());
if (Algorithm != X9ObjectIdentifier.IdECPublicKey)
{
object algorithm = Algorithm;
if (Algorithm == X9ObjectIdentifier.None)
{
algorithm = PkcsObjectIdentifierConverter.FromString(tmp[0].ToString());
if ((PkcsObjectIdentifier)algorithm == PkcsObjectIdentifier.None)
{
algorithm = tmp[0].ToString();
}
}
throw new Exception("Invalid PKCS #10 certificate algorithm. " + algorithm);
}
PublicKey = GXPublicKey.FromRawBytes(((GXAsn1BitString)subjectPKInfo[1]).Value);
GXEcdsa.Validate(PublicKey);
/////////////////////////////
// signatureAlgorithm
GXAsn1Sequence sign = (GXAsn1Sequence)seq[1];
SignatureAlgorithm = HashAlgorithmConverter.FromString(sign[0].ToString());
if (SignatureAlgorithm != HashAlgorithm.Sha256WithEcdsa && SignatureAlgorithm != HashAlgorithm.Sha384WithEcdsa)
{
throw new GXDLMSCertificateException("Invalid signature algorithm. " + sign[0].ToString());
}
if (sign.Count != 1)
{
SignatureParameters = sign[1];
}
/////////////////////////////
// signature
Signature = ((GXAsn1BitString)seq[2]).Value;
GXEcdsa e = new GXEcdsa(PublicKey);
GXAsn1Sequence tmp2 = (GXAsn1Sequence)GXAsn1Converter.FromByteArray(Signature);
GXByteBuffer bb = new GXByteBuffer();
int size = SignatureAlgorithm == HashAlgorithm.Sha256WithEcdsa ? 32 : 48;
//Some implementations might add extra byte. It must removed.
bb.Set(((GXAsn1Integer)tmp2[0]).Value, ((GXAsn1Integer)tmp2[0]).Value.Length == size ? 0 : 1, size);
bb.Set(((GXAsn1Integer)tmp2[1]).Value, ((GXAsn1Integer)tmp2[1]).Value.Length == size ? 0 : 1, size);
if (!e.Verify(bb.Array(), GXAsn1Converter.ToByteArray(reqInfo)))
{
throw new ArgumentException("Invalid Signature.");
}
}
///<summary>
/// Chipher text.
///</summary>
///<param name="settings">
///DLMS settings.
///</param>
///<param name="cipher">
///Cipher.
///</param>
///<param name="ic">
///Invocation counter.
///</param>
///<param name="data">
///Text to chipher.
///</param>
///<param name="secret">
///Secret.
///</param>
///<returns>
///Chiphered text.
///</returns>
public static byte[] Secure(GXDLMSSettings settings, GXICipher cipher, UInt32 ic, byte[] data, byte[] secret)
{
byte[] tmp;
if (settings.Authentication == Authentication.High)
{
int len = secret.Length;
if (len % 16 != 0)
{
len += 16 - (secret.Length % 16);
}
byte[] p = new byte[len];
byte[] s = new byte[16];
byte[] x = new byte[16];
int i;
data.CopyTo(p, 0);
secret.CopyTo(s, 0);
for (i = 0; i < p.Length; i += 16)
{
Buffer.BlockCopy(p, i, x, 0, 16);
GXAes128.Encrypt(x, s);
Buffer.BlockCopy(x, 0, p, i, 16);
}
Buffer.BlockCopy(p, 0, x, 0, 16);
return(x);
}
// Get server Challenge.
GXByteBuffer challenge = new GXByteBuffer();
// Get shared secret
if (settings.Authentication == Authentication.HighGMAC)
{
challenge.Set(data);
}
else
{
challenge.Set(data);
challenge.Set(secret);
}
tmp = challenge.Array();
if (settings.Authentication == Authentication.HighMD5)
{
#if !WINDOWS_UWP
using (MD5 md5Hash = MD5.Create())
{
tmp = md5Hash.ComputeHash(tmp);
return(tmp);
}
#endif
}
else if (settings.Authentication == Authentication.HighSHA1)
{
#if !WINDOWS_UWP
using (SHA1 sha = new SHA1CryptoServiceProvider())
{
tmp = sha.ComputeHash(tmp);
return(tmp);
}
#endif
}
else if (settings.Authentication == Authentication.HighSHA256)
{
//Windows UWP, IOS ad Android don't support this.
#if !WINDOWS_UWP && !__IOS__ && !__ANDROID__
using (SHA256 sha = new SHA256CryptoServiceProvider())
{
tmp = sha.ComputeHash(tmp);
return(tmp);
}
#endif
}
else if (settings.Authentication == Authentication.HighGMAC)
{
//SC is always Security.Authentication.
AesGcmParameter p = new AesGcmParameter(0, Enums.Security.Authentication, ic,
secret, cipher.BlockCipherKey, cipher.AuthenticationKey);
p.Type = CountType.Tag;
challenge.Clear();
challenge.SetUInt8((byte)Enums.Security.Authentication);
challenge.SetUInt32((UInt32)p.InvocationCounter);
challenge.Set(GXDLMSChippering.EncryptAesGcm(p, tmp));
tmp = challenge.Array();
return(tmp);
}
return(data);
}
///<summary>
/// Chipher text.
///</summary>
///<param name="settings">
///DLMS settings.
///</param>
///<param name="cipher">
///Cipher.
///</param>
///<param name="ic">
///Invocation counter.
///</param>
///<param name="data">
///Text to chipher.
///</param>
///<param name="secret">
///Secret.
///</param>
///<returns>
///Chiphered text.
///</returns>
public static byte[] Secure(GXDLMSSettings settings, GXICipher cipher, UInt32 ic, byte[] data, byte[] secret)
{
byte[] tmp;
if (settings.Authentication == Authentication.High)
{
int len = secret.Length;
if (len % 16 != 0)
{
len += 16 - (secret.Length % 16);
}
byte[] p = new byte[len];
byte[] s = new byte[16];
byte[] x = new byte[16];
int i;
data.CopyTo(p, 0);
secret.CopyTo(s, 0);
for (i = 0; i < p.Length; i += 16)
{
Buffer.BlockCopy(p, i, x, 0, 16);
GXAes128.Encrypt(x, s);
Buffer.BlockCopy(x, 0, p, i, 16);
}
Buffer.BlockCopy(p, 0, x, 0, 16);
return x;
}
// Get server Challenge.
GXByteBuffer challenge = new GXByteBuffer();
// Get shared secret
if (settings.Authentication == Authentication.HighGMAC)
{
challenge.Set(data);
}
else
{
challenge.Set(data);
challenge.Set(secret);
}
tmp = challenge.Array();
if (settings.Authentication == Authentication.HighMD5)
{
using (MD5 md5Hash = MD5.Create())
{
tmp = md5Hash.ComputeHash(tmp);
return tmp;
}
}
else if (settings.Authentication == Authentication.HighSHA1)
{
using (SHA1 sha = new SHA1CryptoServiceProvider())
{
tmp = sha.ComputeHash(tmp);
return tmp;
}
}
else if (settings.Authentication == Authentication.HighGMAC)
{
//SC is always Security.Authentication.
AesGcmParameter p = new AesGcmParameter(0, Security.Authentication, ic,
secret, cipher.BlockCipherKey, cipher.AuthenticationKey);
p.Type = CountType.Tag;
challenge.Clear();
challenge.SetUInt8((byte)Security.Authentication);
challenge.SetUInt32(p.FrameCounter);
challenge.Set(GXDLMSChippering.EncryptAesGcm(p, tmp));
tmp = challenge.Array();
return tmp;
}
return data;
}
void IGXDLMSBase.SetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
LogicalName = GXCommon.ToLogicalName(e.Value);
}
else if (e.Index == 2)
{
if (e.Value is byte[] v)
{
if (IsSec() || !GXByteBuffer.IsAsciiString(v))
{
CalendarNameActive = GXCommon.ToHex(v, false);
}
else
{
CalendarNameActive = ASCIIEncoding.ASCII.GetString(v);
}
}
else
{
CalendarNameActive = Convert.ToString(e.Value);
}
}
else if (e.Index == 3)
{
SeasonProfileActive = SetSeasonProfile(settings, e.Value);
}
else if (e.Index == 4)
{
WeekProfileTableActive = SetWeekProfileTable(settings, e.Value);
}
else if (e.Index == 5)
{
DayProfileTableActive = SetDayProfileTable(settings, e.Value);
}
else if (e.Index == 6)
{
if (e.Value is byte[] v)
{
if (IsSec() || !GXByteBuffer.IsAsciiString(v))
{
CalendarNamePassive = GXCommon.ToHex(v, false);
}
else
{
CalendarNamePassive = ASCIIEncoding.ASCII.GetString(v);
}
}
else
{
CalendarNamePassive = Convert.ToString(e.Value);
}
}
else if (e.Index == 7)
{
SeasonProfilePassive = SetSeasonProfile(settings, e.Value);
}
else if (e.Index == 8)
{
WeekProfileTablePassive = SetWeekProfileTable(settings, e.Value);
}
else if (e.Index == 9)
{
DayProfileTablePassive = SetDayProfileTable(settings, e.Value);
}
else if (e.Index == 10)
{
if (e.Value is byte[])
{
Time = (GXDateTime)GXDLMSClient.ChangeType((byte[])e.Value, DataType.DateTime, settings.UseUtc2NormalTime);
}
else
{
Time = new GXDateTime(Convert.ToDateTime(e.Value));
}
}
else
{
e.Error = ErrorCode.ReadWriteDenied;
}
}
private void GetAccessRights(GXDLMSSettings settings, GXDLMSObject item, GXDLMSServer server, GXByteBuffer data)
{
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2);
data.SetUInt8((byte)DataType.Array);
int cnt = (item as IGXDLMSBase).GetAttributeCount();
data.SetUInt8((byte)cnt);
ValueEventArgs e;
if (server != null)
{
e = new DLMS.ValueEventArgs(server, item, 0, 0, null);
}
else
{
e = new DLMS.ValueEventArgs(settings, item, 0, 0, null);
}
for (int pos = 0; pos != cnt; ++pos)
{
e.Index = pos + 1;
AccessMode m;
if (server != null)
{
m = server.NotifyGetAttributeAccess(e);
}
else
{
m = AccessMode.ReadWrite;
}
//attribute_access_item
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)3);
GXCommon.SetData(settings, data, DataType.Int8, e.Index);
GXCommon.SetData(settings, data, DataType.Enum, m);
GXCommon.SetData(settings, data, DataType.None, null);
}
data.SetUInt8((byte)DataType.Array);
cnt = (item as IGXDLMSBase).GetMethodCount();
data.SetUInt8((byte)cnt);
for (int pos = 0; pos != cnt; ++pos)
{
e.Index = pos + 1;
MethodAccessMode m;
if (server != null)
{
m = server.NotifyGetMethodAccess(e);
}
else
{
m = MethodAccessMode.Access;
}
//attribute_access_item
data.SetUInt8((byte)DataType.Structure);
data.SetUInt8((byte)2);
GXCommon.SetData(settings, data, DataType.Int8, pos + 1);
GXCommon.SetData(settings, data, DataType.Enum, m);
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
GXByteBuffer buff = new GXByteBuffer();
if (e.Index == 2)
{
buff.SetUInt8(DataType.Array);
GXCommon.SetObjectCount(PushObjectList.Count, buff);
foreach (KeyValuePair <GXDLMSObject, GXDLMSCaptureObject> it in PushObjectList)
{
buff.SetUInt8(DataType.Structure);
buff.SetUInt8(4);
GXCommon.SetData(settings, buff, DataType.UInt16, it.Key.ObjectType);
GXCommon.SetData(settings, buff, DataType.OctetString, GXCommon.LogicalNameToBytes(it.Key.LogicalName));
GXCommon.SetData(settings, buff, DataType.Int8, it.Value.AttributeIndex);
GXCommon.SetData(settings, buff, DataType.UInt16, it.Value.DataIndex);
}
return(buff.Array());
}
if (e.Index == 3)
{
buff.SetUInt8(DataType.Structure);
buff.SetUInt8(3);
GXCommon.SetData(settings, buff, DataType.UInt8, Service);
if (Destination != null)
{
GXCommon.SetData(settings, buff, DataType.OctetString, ASCIIEncoding.ASCII.GetBytes(Destination));
}
else
{
GXCommon.SetData(settings, buff, DataType.OctetString, null);
}
GXCommon.SetData(settings, buff, DataType.UInt8, Message);
return(buff.Array());
}
if (e.Index == 4)
{
buff.SetUInt8(DataType.Array);
GXCommon.SetObjectCount(CommunicationWindow.Count, buff);
foreach (KeyValuePair <GXDateTime, GXDateTime> it in CommunicationWindow)
{
buff.SetUInt8(DataType.Structure);
buff.SetUInt8(2);
GXCommon.SetData(settings, buff, DataType.OctetString, it.Key);
GXCommon.SetData(settings, buff, DataType.OctetString, it.Value);
}
return(buff.Array());
}
if (e.Index == 5)
{
return(RandomisationStartInterval);
}
if (e.Index == 6)
{
return(NumberOfRetries);
}
if (e.Index == 7)
{
return(RepetitionDelay);
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
void IGXDLMSBase.SetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
LogicalName = GXCommon.ToLogicalName(e.Value);
}
else if (e.Index == 2)
{
ObjectList.Clear();
if (e.Value != null)
{
foreach (Object[] item in (Object[])e.Value)
{
GXDLMSObject obj = GetObject(settings, item);
//Unknown objects are not shown.
if (obj is IGXDLMSBase)
{
ObjectList.Add(obj);
}
}
}
}
else if (e.Index == 3)
{
if (e.Value != null)
{
ClientSAP = Convert.ToByte(((Object[])e.Value)[0]);
ServerSAP = Convert.ToUInt16(((Object[])e.Value)[1]);
}
}
else if (e.Index == 4)
{
//Value of the object identifier encoded in BER
if (e.Value is byte[])
{
GXByteBuffer arr = new GXByteBuffer(e.Value as byte[]);
if (arr.GetUInt8(0) == 0x60)
{
ApplicationContextName.JointIsoCtt = arr.GetUInt8();
ApplicationContextName.Country = arr.GetUInt8();
ApplicationContextName.CountryName = arr.GetUInt8();
ApplicationContextName.IdentifiedOrganization = arr.GetUInt8();
ApplicationContextName.DlmsUA = arr.GetUInt8();
ApplicationContextName.ApplicationContext = arr.GetUInt8();
ApplicationContextName.ContextId = (ApplicationContextName)arr.GetUInt8();
}
else
{
//Get Tag and Len.
if (arr.GetUInt8() != (int)BerType.Integer && arr.GetUInt8() != 7)
{
throw new ArgumentOutOfRangeException();
}
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.JointIsoCtt = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.Country = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x12)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.CountryName = arr.GetUInt16();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.IdentifiedOrganization = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.DlmsUA = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.ApplicationContext = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
ApplicationContextName.ContextId = (ApplicationContextName)arr.GetUInt8();
}
}
else if (e.Value != null)
{
Object[] arr = (Object[])e.Value;
ApplicationContextName.JointIsoCtt = Convert.ToByte(arr[0]);
ApplicationContextName.Country = Convert.ToByte(arr[1]);
ApplicationContextName.CountryName = Convert.ToUInt16(arr[2]);
ApplicationContextName.IdentifiedOrganization = Convert.ToByte(arr[3]);
ApplicationContextName.DlmsUA = Convert.ToByte(arr[4]);
ApplicationContextName.ApplicationContext = Convert.ToByte(arr[5]);
ApplicationContextName.ContextId = (ApplicationContextName)Convert.ToByte(arr[6]);
}
}
else if (e.Index == 5)
{
if (e.Value != null)
{
Object[] arr = (Object[])e.Value;
GXByteBuffer bb = new GXByteBuffer();
GXCommon.SetBitString(bb, arr[0]);
bb.SetUInt8(0, 0);
XDLMSContextInfo.Conformance = (Conformance)bb.GetUInt32();
XDLMSContextInfo.MaxReceivePduSize = Convert.ToUInt16(arr[1]);
XDLMSContextInfo.MaxSendPduSize = Convert.ToUInt16(arr[2]);
XDLMSContextInfo.DlmsVersionNumber = Convert.ToByte(arr[3]);
XDLMSContextInfo.QualityOfService = Convert.ToSByte(arr[4]);
XDLMSContextInfo.CypheringInfo = (byte[])arr[5];
}
}
else if (e.Index == 6)
{
//Value of the object identifier encoded in BER
if (e.Value is byte[])
{
GXByteBuffer arr = new GXByteBuffer(e.Value as byte[]);
if (arr.GetUInt8(0) == 0x60)
{
AuthenticationMechanismName.JointIsoCtt = arr.GetUInt8();
AuthenticationMechanismName.Country = arr.GetUInt8();
AuthenticationMechanismName.CountryName = arr.GetUInt8();
AuthenticationMechanismName.IdentifiedOrganization = arr.GetUInt8();
AuthenticationMechanismName.DlmsUA = arr.GetUInt8();
AuthenticationMechanismName.AuthenticationMechanismName = arr.GetUInt8();
AuthenticationMechanismName.MechanismId = (Authentication)arr.GetUInt8();
}
else
{
//Get Tag and Len.
if (arr.GetUInt8() != (int)BerType.Integer && arr.GetUInt8() != 7)
{
throw new ArgumentOutOfRangeException();
}
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.JointIsoCtt = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.Country = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x12)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.CountryName = arr.GetUInt16();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.IdentifiedOrganization = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.DlmsUA = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.AuthenticationMechanismName = arr.GetUInt8();
//Get tag
if (arr.GetUInt8() != 0x11)
{
throw new ArgumentOutOfRangeException();
}
AuthenticationMechanismName.MechanismId = (Authentication)arr.GetUInt8();
}
}
else if (e.Value != null)
{
Object[] arr = (Object[])e.Value;
AuthenticationMechanismName.JointIsoCtt = Convert.ToByte(arr[0]);
AuthenticationMechanismName.Country = Convert.ToByte(arr[1]);
AuthenticationMechanismName.CountryName = Convert.ToUInt16(arr[2]);
AuthenticationMechanismName.IdentifiedOrganization = Convert.ToByte(arr[3]);
AuthenticationMechanismName.DlmsUA = Convert.ToByte(arr[4]);
AuthenticationMechanismName.AuthenticationMechanismName = Convert.ToByte(arr[5]);
AuthenticationMechanismName.MechanismId = (Authentication)Convert.ToByte(arr[6]);
}
}
else if (e.Index == 7)
{
Secret = (byte[])e.Value;
}
else if (e.Index == 8)
{
if (e.Value == null)
{
AssociationStatus = AssociationStatus.NonAssociated;
}
else
{
AssociationStatus = (AssociationStatus)Convert.ToInt32(e.Value);
}
}
else if (e.Index == 9)
{
SecuritySetupReference = GXCommon.ToLogicalName(e.Value);
}
else if (e.Index == 10)
{
UserList.Clear();
if (e.Value != null)
{
foreach (Object[] item in (Object[])e.Value)
{
UserList.Add(new KeyValuePair <byte, string>(Convert.ToByte(item[0]), Convert.ToString(item[1])));
}
}
}
else if (e.Index == 11)
{
if (e.Value != null)
{
Object[] tmp = (Object[])e.Value;
CurrentUser = new KeyValuePair <byte, string>(Convert.ToByte(tmp[0]), Convert.ToString(tmp[1]));
}
else
{
CurrentUser = new KeyValuePair <byte, string>(0, null);
}
}
else
{
e.Error = ErrorCode.ReadWriteDenied;
}
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
object ret;
switch (e.Index)
{
case 1:
ret = GXCommon.LogicalNameToBytes(LogicalName);
break;
case 2:
ret = InitiatorElectricalPhase;
break;
case 3:
ret = DeltaElectricalPhase;
break;
case 4:
ret = MaxReceivingGain;
break;
case 5:
ret = MaxTransmittingGain;
break;
case 6:
ret = SearchInitiatorThreshold;
break;
case 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);
ret = bb.Array();
break;
}
case 8:
ret = MacAddress;
break;
case 9:
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Array);
if (MacGroupAddresses == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(MacGroupAddresses.Length, bb);
foreach (ushort it in MacGroupAddresses)
{
GXCommon.SetData(settings, bb, DataType.UInt16, it);
}
}
ret = bb.Array();
break;
}
case 10:
ret = Repeater;
break;
case 11:
ret = RepeaterStatus;
break;
case 12:
ret = MinDeltaCredit;
break;
case 13:
ret = InitiatorMacAddress;
break;
case 14:
ret = SynchronizationLocked;
break;
case 15:
ret = TransmissionSpeed;
break;
default:
e.Error = ErrorCode.ReadWriteDenied;
ret = null;
break;
}
return(ret);
}
byte[] IGXDLMSBase.Invoke(GXDLMSSettings settings, ValueEventArgs e)
{
//Check reply_to_HLS_authentication
if (e.Index == 8)
{
UInt32 ic = 0;
byte[] secret;
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.SourceSystemTitle;
GXByteBuffer bb = new GXByteBuffer(e.Parameters as byte[]);
bb.GetUInt8();
ic = bb.GetUInt32();
}
else
{
secret = HlsSecret;
}
byte[] serverChallenge = GXSecure.Secure(settings, settings.Cipher, ic, settings.StoCChallenge, secret);
byte[] clientChallenge = (byte[])e.Parameters;
if (GXCommon.Compare(serverChallenge, clientChallenge))
{
if (settings.Authentication == Authentication.HighGMAC)
{
secret = settings.Cipher.SystemTitle;
ic = settings.Cipher.FrameCounter;
}
else
{
secret = HlsSecret;
}
settings.Connected = true;
return GXSecure.Secure(settings, settings.Cipher, ic, settings.CtoSChallenge, secret);
}
else
{
// If the password does not match.
settings.Connected = false;
return null;
}
}
else
{
e.Error = ErrorCode.ReadWriteDenied;
return null;
}
}
Gurux.DLMS.Enums.Security GXICipher.Decrypt(byte[] title, GXByteBuffer data)
{
AesGcmParameter p = new AesGcmParameter(title, BlockCipherKey, AuthenticationKey);
byte[] tmp = GXDLMSChippering.DecryptAesGcm(p, data);
data.Clear();
data.Set(tmp);
return p.Security;
}
/// <summary>
/// Returns Association View.
/// </summary>
private GXByteBuffer GetObjects(GXDLMSSettings settings, ValueEventArgs e)
{
int cnt = ObjectList.Count;
GXByteBuffer data = new GXByteBuffer();
//Add count only for first time.
if (settings.Index == 0)
{
settings.Count = (UInt16)cnt;
data.SetUInt8((byte)DataType.Array);
GXCommon.SetObjectCount(cnt, data);
}
ushort pos = 0;
foreach (GXDLMSObject it in ObjectList)
{
++pos;
if (!(pos <= settings.Index))
{
data.SetUInt8((byte)DataType.Structure);
//Count
data.SetUInt8((byte)4);
//base address.
GXCommon.SetData(settings, data, DataType.Int16, it.ShortName);
//ClassID
GXCommon.SetData(settings, data, DataType.UInt16, it.ObjectType);
//Version
GXCommon.SetData(settings, data, DataType.UInt8, 0);
//LN
GXCommon.SetData(settings, data, DataType.OctetString, it.LogicalName);
++settings.Index;
//If PDU is full.
if (!e.SkipMaxPduSize && data.Size >= settings.MaxPduSize)
{
break;
}
}
}
return data;
}
///<summary>
///Convert Array to DLMS bytes.
///</summary>
///<param name="buff">
///Byte buffer where data is write.
///</param>
///<param name="value">
///Added value.
///</param>
private static void SetArray(GXDLMSSettings settings, GXByteBuffer buff, object value)
{
if (value != null)
{
object[] arr = (object[])value;
SetObjectCount(arr.Length, buff);
foreach (object it in arr)
{
SetData(settings, buff, GetValueType(it), it);
}
}
else
{
SetObjectCount(0, buff);
}
}
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);
}
///<summary>
///Convert UTC string to DLMS bytes.
///</summary>
///<param name="buff">
///Byte buffer where data is write.
///</param>
///<param name="value">
///Added value.
///</param>
private static void SetUtcString(GXByteBuffer buff, object value)
{
if (value != null)
{
byte[] tmp = ASCIIEncoding.UTF8.GetBytes(Convert.ToString(value));
SetObjectCount(tmp.Length, buff);
buff.Set(tmp);
}
else
{
buff.SetUInt8(0);
}
}
/// <summary>
/// Import server settings and COSEM objects from GXDLMSDirector trace.
/// </summary>
/// <param name="server">Server where settings are updated.</param>
/// <param name="data">GXDLMSDirector trace in byte array.</param>
public static void Import(GXDLMSServer server, byte[] data)
{
GXDLMSTranslator translator = new GXDLMSTranslator(TranslatorOutputType.StandardXml);
translator.CompletePdu = true;
translator.PduOnly = true;
XmlDocument doc = new XmlDocument();
List<ValueEventArgs> targets = new List<ValueEventArgs>();
GXDLMSSettings settings = new GXDLMSSettings(true);
GXByteBuffer pdu = new GXByteBuffer();
GXByteBuffer bb = new GXByteBuffer(data);
server.InterfaceType = GXDLMSTranslator.GetDlmsFraming(bb);
bool lastBlock = true;
GXByteBuffer val = new DLMS.GXByteBuffer();
while (translator.FindNextFrame(bb, pdu, server.InterfaceType))
{
String xml = translator.MessageToXml(bb);
if (xml != "")
{
doc.LoadXml(xml);
foreach (XmlNode node in doc.ChildNodes[doc.ChildNodes.Count - 1].ChildNodes)
{
if (node.Name == "x:get-request")
{
server.UseLogicalNameReferencing = true;
GetLN(settings.Objects, targets, node.ChildNodes);
}
else if (node.Name == "x:readRequest")
{
List<short> items = GetSN(node.ChildNodes);
server.UseLogicalNameReferencing = false;
foreach (short it in items)
{
GXSNInfo i = GXDLMSSNCommandHandler.FindSNObject(settings.Objects, Convert.ToUInt16((it) & 0xFFFF));
targets.Add(new ValueEventArgs(i.Item, i.Index, 0, null));
}
}
else if (node.Name == "x:readResponse" ||
node.Name == "x:get-response")
{
if (targets != null)
{
List<string> items;
if (server.UseLogicalNameReferencing)
{
items = GetLNValues(node.ChildNodes);
}
else
{
items = GetSNValues(node.ChildNodes);
}
int pos = 0;
foreach (string it in items)
{
if ("read-write-denied".Equals(it) ||
"scope-of-access-violated".Equals(it) ||
"object-unavailable".Equals(it))
{
ValueEventArgs ve = targets[pos];
ve.Target.SetAccess(ve.Index, AccessMode.NoAccess);
continue;
}
try
{
if (server.UseLogicalNameReferencing)
{
lastBlock = IsLastBlock(node.ChildNodes);
}
val.Set(translator.XmlToData(it));
if (lastBlock)
{
if (settings.Objects.Count == 0)
{
GXDLMSClient c = new GXDLMSClient();
c.UseLogicalNameReferencing = server.UseLogicalNameReferencing;
settings.Objects = c.ParseObjects(val, true);
//Update OBIS code description.
GXDLMSConverter converter = new GXDLMSConverter();
converter.UpdateOBISCodeInformation(settings.Objects);
}
else
{
ValueEventArgs ve = targets[pos];
GXDataInfo info = new GXDataInfo();
ve.Value = GXCommon.GetData(server.Settings, val, info);
if (ve.Value is byte[])
{
DataType tp = ve.Target.GetUIDataType(ve.Index);
if (tp != DataType.None)
{
ve.Value = GXDLMSClient.ChangeType((byte[])ve.Value, tp);
}
}
((IGXDLMSBase)ve.Target).SetValue(settings, ve);
}
val.Clear();
}
}
catch (Exception)
{
ValueEventArgs ve = targets[pos];
ve.Target.SetAccess(ve.Index, AccessMode.NoAccess);
}
++pos;
}
if (lastBlock)
{
targets.Clear();
}
}
}
}
}
}
server.Items.Clear();
server.Items.AddRange(settings.Objects);
}
object IGXDLMSBase.GetValue(GXDLMSSettings settings, ValueEventArgs e)
{
if (e.Index == 1)
{
return(GXCommon.LogicalNameToBytes(LogicalName));
}
if (e.Index == 2)
{
return(ShortAddress);
}
if (e.Index == 3)
{
return(RcCoord);
}
if (e.Index == 4)
{
return(PANId);
}
if (e.Index == 5)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (KeyTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(KeyTable.Count, bb);
foreach (GXKeyValuePair <byte, byte[]> it in KeyTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(2);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Key);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Value);
}
}
return(bb.Array());
}
if (e.Index == 6)
{
return(FrameCounter);
}
if (e.Index == 7)
{
return(ToneMask);
}
if (e.Index == 8)
{
return(TmrTtl);
}
if (e.Index == 9)
{
return(MaxFrameRetries);
}
if (e.Index == 10)
{
return(NeighbourTableEntryTtl);
}
if (e.Index == 11)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8((byte)DataType.Array);
if (NeighbourTable == null)
{
bb.SetUInt8(0);
}
else
{
GXCommon.SetObjectCount(NeighbourTable.Length, bb);
foreach (GXDLMSNeighbourTable it in NeighbourTable)
{
bb.SetUInt8((byte)DataType.Structure);
bb.SetUInt8(11);
GXCommon.SetData(settings, bb, DataType.UInt16, it.ShortAddress);
GXCommon.SetData(settings, bb, DataType.Boolean, it.Enabled);
GXCommon.SetData(settings, bb, DataType.BitString, it.ToneMap);
GXCommon.SetData(settings, bb, DataType.Enum, it.Modulation);
GXCommon.SetData(settings, bb, DataType.Int8, it.TxGain);
GXCommon.SetData(settings, bb, DataType.Enum, it.TxRes);
GXCommon.SetData(settings, bb, DataType.BitString, it.TxCoeff);
GXCommon.SetData(settings, bb, DataType.UInt8, it.Lqi);
GXCommon.SetData(settings, bb, DataType.Int8, it.PhaseDifferential);
GXCommon.SetData(settings, bb, DataType.UInt8, it.TMRValidTime);
GXCommon.SetData(settings, bb, DataType.UInt8, it.NeighbourValidTime);
}
}
return(bb.Array());
}
if (e.Index == 12)
{
return(HighPriorityWindowSize);
}
if (e.Index == 13)
{
return(CscmFairnessLimit);
}
if (e.Index == 14)
{
return(BeaconRandomizationWindowLength);
}
if (e.Index == 15)
{
return(A);
}
if (e.Index == 16)
{
return(K);
}
if (e.Index == 17)
{
return(MinCwAttempts);
}
if (e.Index == 18)
{
return(CenelecLegacyMode);
}
if (e.Index == 19)
{
return(FccLegacyMode);
}
if (e.Index == 20)
{
return(MaxBe);
}
if (e.Index == 21)
{
return(MaxCsmaBackoffs);
}
if (e.Index == 22)
{
return(MinBe);
}
e.Error = ErrorCode.ReadWriteDenied;
return(null);
}
