/// <summary>
/// Parse application context name.
/// </summary>
/// <param name="settings">DLMS settings.</param>
/// <param name="buff">Received data.</param>
private static bool ParseApplicationContextName(GXDLMSSettings settings, GXByteBuffer buff)
{
//Get length.
int len = buff.GetUInt8();
if (buff.Size - buff.Position < len)
{
throw new Exception("Encoding failed. Not enough data.");
}
if (buff.GetUInt8() != 0x6)
{
throw new Exception("Encoding failed. Not an Object ID.");
}
if (settings.IsServer)
{
settings.Cipher.Security = Security.None;
}
//Object ID length.
len = buff.GetUInt8();
if (settings.UseLogicalNameReferencing)
{
if (buff.Compare(GXCommon.LogicalNameObjectID))
{
return(true);
}
// If ciphering is used.
return(buff.Compare(GXCommon.LogicalNameObjectIdWithCiphering));
}
if (buff.Compare(GXCommon.ShortNameObjectID))
{
return(true);
}
// If ciphering is used.
return(buff.Compare(GXCommon.ShortNameObjectIdWithCiphering));
}
/// <summary>
/// Parse application context name.
/// </summary>
/// <param name="settings">DLMS settings.</param>
/// <param name="buff">Received data.</param>
private static bool ParseApplicationContextName(GXDLMSSettings settings, GXByteBuffer buff, GXDLMSTranslatorStructure xml)
{
//Get length.
int len = buff.GetUInt8();
if (buff.Size - buff.Position < len)
{
throw new Exception("Encoding failed. Not enough data.");
}
if (buff.GetUInt8() != 0x6)
{
throw new Exception("Encoding failed. Not an Object ID.");
}
if (settings.IsServer && settings.Cipher != null)
{
settings.Cipher.Security = Gurux.DLMS.Enums.Security.None;
}
//Object ID length.
len = buff.GetUInt8();
if (xml != null)
{
if (buff.Compare(GXCommon.LogicalNameObjectID))
{
if (xml.OutputType == TranslatorOutputType.SimpleXml)
{
xml.AppendLine(TranslatorGeneralTags.ApplicationContextName,
"Value", "LN");
}
else
{
xml.AppendLine(
TranslatorGeneralTags.ApplicationContextName,
null, "1");
}
settings.UseLogicalNameReferencing = true;
}
else if (buff.Compare(GXCommon.LogicalNameObjectIdWithCiphering))
{
if (xml.OutputType == TranslatorOutputType.SimpleXml)
{
xml.AppendLine(TranslatorGeneralTags.ApplicationContextName,
"Value", "LN_WITH_CIPHERING");
}
else
{
xml.AppendLine(
TranslatorGeneralTags.ApplicationContextName,
null, "3");
}
settings.UseLogicalNameReferencing = true;
}
else if (buff.Compare(GXCommon.ShortNameObjectID))
{
if (xml.OutputType == TranslatorOutputType.SimpleXml)
{
xml.AppendLine(TranslatorGeneralTags.ApplicationContextName,
"Value", "SN");
}
else
{
xml.AppendLine(
TranslatorGeneralTags.ApplicationContextName,
null, "2");
}
settings.UseLogicalNameReferencing = false;
}
else if (buff.Compare(GXCommon.ShortNameObjectIdWithCiphering))
{
if (xml.OutputType == TranslatorOutputType.SimpleXml)
{
xml.AppendLine(TranslatorGeneralTags.ApplicationContextName,
"Value", "SN_WITH_CIPHERING");
}
else
{
xml.AppendLine(
TranslatorGeneralTags.ApplicationContextName,
null, "4");
}
settings.UseLogicalNameReferencing = false;
}
else
{
return false;
}
return true;
}
if (settings.UseLogicalNameReferencing)
{
if (buff.Compare(GXCommon.LogicalNameObjectID))
{
return true;
}
// If ciphering is used.
return buff.Compare(GXCommon.LogicalNameObjectIdWithCiphering);
}
if (buff.Compare(GXCommon.ShortNameObjectID))
{
return true;
}
// If ciphering is used.
return buff.Compare(GXCommon.ShortNameObjectIdWithCiphering);
}
