public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte((byte)(this.sn & 0xff));
frame.SetNextByte((byte)(this.sn / 0x100 & 0xff));
}
internal void Encode(Frame frame, ApplicationLayerParameters parameters)
{
frame.SetNextByte((byte)typeId);
frame.SetNextByte(vsq);
byte cotByte = (byte)cot;
if (isTest)
{
cotByte = (byte)(cotByte | 0x80);
}
if (isNegative)
{
cotByte = (byte)(cotByte | 0x40);
}
frame.SetNextByte(cotByte);
if (parameters.SizeOfCOT == 2)
{
frame.SetNextByte((byte)oa);
}
frame.SetNextByte((byte)(ca % 256));
if (parameters.SizeOfCA > 1)
{
frame.SetNextByte((byte)(ca / 256));
}
if (payload != null)
{
frame.AppendBytes(payload);
}
else
{
bool isFirst = true;
foreach (InformationObject io in informationObjects)
{
if (isFirst)
{
io.Encode(frame, parameters, false);
isFirst = false;
}
else
{
if (IsSequence)
{
io.Encode(frame, parameters, true);
}
else
{
io.Encode(frame, parameters, false);
}
}
}
}
}
public FIleWriteActCon(ApplicationLayerParameters parameters, byte[] msg, int startIndex) : base(parameters, msg, startIndex)
{
startIndex += 2; /* skip IOA */
startIndex += 1; /* skip AdditionalPacketType */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
startIndex += 1; /* skip OPT */
_result = (WriteFileActConResult)msg[startIndex++];
_fileNameLength = msg[startIndex++];
_fileName = "";
for (int i = 0; i < _fileNameLength; i++)
{
_fileName += (char)msg[startIndex++];
}
_fileId = msg[startIndex++];
_fileId += msg[startIndex++] * 0x100;
_fileId += msg[startIndex++] * 0x10000;
_fileId += msg[startIndex++] * 0x1000000;
_fileSize = msg[startIndex++];
_fileSize += (uint)msg[startIndex++] * 0x100;
_fileSize += (uint)msg[startIndex++] * 0x10000;
_fileSize += (uint)msg[startIndex++] * 0x100000;
}
public FileCall(ApplicationLayerParameters parameters, byte[] msg, int startIndex) : base(parameters, msg, startIndex)
{
startIndex += 2; /* skip IOA */
startIndex += 1; /* skip AdditionalPacketType */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
startIndex += 1; /* skip OPT */
_folderId = msg[startIndex++];
_folderId += msg[startIndex++] * 0x100;
_folderId += msg[startIndex++] * 0x10000;
_folderId += msg[startIndex++] * 0x1000000;
_folderNameLength = msg[startIndex++];
for (int i = 0; i < _folderNameLength; i++)
{
_folderName += (char)msg[startIndex++];
}
if ((msg.Length - startIndex) < 15)
{
throw new ASDUParsingException("Message too small");
}
_callFlag = (CallFlag)msg[startIndex++];
_startTime = new CP56Time2a(msg, startIndex);
startIndex += 7;
_endTime = new CP56Time2a(msg, startIndex);
}
public FIleWriteTransfer(ApplicationLayerParameters parameters, byte[] msg, int startIndex) : base(parameters, msg, startIndex)
{
startIndex += 2; /* skip IOA */
startIndex += 1; /* skip AdditionalPacketType */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
startIndex += 1; /* skip OPT */
_fileId = msg[startIndex++];
_fileId += msg[startIndex++] * 0x100;
_fileId += msg[startIndex++] * 0x10000;
_fileId += msg[startIndex++] * 0x1000000;
_offset = msg[startIndex++];
_offset += msg[startIndex++] * 0x100;
_offset += msg[startIndex++] * 0x10000;
_offset += msg[startIndex++] * 0x1000000;
_followup = msg[startIndex++] == 1;
if (msg.Length - startIndex - 1 < 0)
{
throw new ASDUParsingException("File contents is empty");
}
_data = new byte[msg.Length - startIndex - 1];
Array.Copy(msg, startIndex, _data, 0, _data.Length);
_cs = msg[msg.Length - 1];
}
internal FileDirectory(ApplicationLayerParameters parameters, byte[] msg, int startIndex, bool isSequence)
: base(parameters, msg, startIndex, isSequence)
{
if (!isSequence)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
}
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
int nofValue;
nofValue = msg[startIndex++];
nofValue += (msg[startIndex++] * 0x100);
nof = (NameOfFile)nofValue;
lengthOfFile = msg[startIndex++];
lengthOfFile += (msg[startIndex++] * 0x100);
lengthOfFile += (msg[startIndex++] * 0x10000);
sof = msg[startIndex++];
/* parse CP56Time2a (creation time of file) */
creationTime = new CP56Time2a(msg, startIndex);
}
internal SectionReady(ApplicationLayerParameters parameters, byte[] msg, int startIndex, bool isSequence)
: base(parameters, msg, startIndex, isSequence)
{
if (!isSequence)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
}
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
int nofValue;
nofValue = msg[startIndex++];
nofValue += (msg[startIndex++] * 0x100);
nof = (NameOfFile)nofValue;
nameOfSection = msg[startIndex++];
lengthOfSection = msg[startIndex++];
lengthOfSection += (msg[startIndex++] * 0x100);
lengthOfSection += (msg[startIndex++] * 0x10000);
/* parse SRQ (section read qualifier) */
srq = msg[startIndex++];
}
internal FileLastSegmentOrSection(ApplicationLayerParameters parameters, byte[] msg, int startIndex, bool isSequence)
: base(parameters, msg, startIndex, isSequence)
{
if (!isSequence)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
}
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
int nofValue;
nofValue = msg[startIndex++];
nofValue += (msg[startIndex++] * 0x100);
nof = (NameOfFile)nofValue;
nameOfSection = msg[startIndex++];
/* parse LSQ (last section or segment qualifier) */
lsq = (LastSectionOrSegmentQualifier)msg[startIndex++];
chs = msg[startIndex++];
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte(0xaa);
frame.SetNextByte(0x55);
}
protected InformationObject(ApplicationLayerParameters parameters, byte[] msg, int startIndex, bool isSequence)
{
if (!isSequence)
{
objectAddress = ParseInformationObjectAddress(parameters, msg, startIndex);
}
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
frame.SetNextByte((byte)(ObjectAddress & 0xff));
frame.SetNextByte((byte)((ObjectAddress / 0x100) & 0xff));
frame.SetNextByte((byte)_additionalPacketType);
frame.SetNextByte((byte)_opt);
}
internal StepPositionInformation(ApplicationLayerParameters parameters, byte[] msg, int startIndex, bool isSequence)
: base(parameters, msg, startIndex, isSequence)
{
if (!isSequence)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
}
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
/* parse VTI (value with transient state indication) */
byte vti = msg[startIndex++];
isTransient = ((vti & 0x80) == 0x80);
value = (vti & 0x7f);
if (value > 63)
{
value = value - 128;
}
quality = new QualityDescriptor(msg[startIndex++]);
}
public ASDU(ApplicationLayerParameters parameters, byte[] msg, int bufPos, int msgLength)
{
this.parameters = parameters;
int asduHeaderSize = 2 + parameters.SizeOfCOT + parameters.SizeOfCA;
if ((msgLength - bufPos) < asduHeaderSize)
{
throw new ASDUParsingException("Message header too small");
}
typeId = (TypeID)msg[bufPos++];
vsq = msg[bufPos++];
this.hasTypeId = true;
byte cotByte = msg[bufPos++];
if ((cotByte & 0x80) != 0)
{
isTest = true;
}
else
{
isTest = false;
}
if ((cotByte & 0x40) != 0)
{
isNegative = true;
}
else
{
isNegative = false;
}
cot = (CauseOfTransmission)(cotByte & 0x3f);
if (parameters.SizeOfCOT == 2)
{
oa = msg[bufPos++];
}
ca = msg[bufPos++];
if (parameters.SizeOfCA > 1)
{
ca += (msg[bufPos++] * 0x100);
}
int payloadSize = msgLength - bufPos;
//TODO add plausibility check for payload length (using TypeID, SizeOfIOA, and VSQ)
payload = new byte[payloadSize];
/* save payload */
Buffer.BlockCopy(msg, bufPos, payload, 0, payloadSize);
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.AppendBytes(scd.GetEncodedValue());
frame.SetNextByte(qds.EncodedValue);
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.AppendBytes(System.BitConverter.GetBytes(value));
frame.SetNextByte(this.qos.GetEncodedValue());
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte((byte)(value % 256));
frame.SetNextByte((byte)((value / 0x100) % 256));
frame.SetNextByte((byte)((value / 0x10000) % 256));
frame.SetNextByte((byte)((value / 0x1000000) % 256));
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte((byte)(tsc % 256));
frame.SetNextByte((byte)(tsc / 256));
frame.AppendBytes(time.GetEncodedValue());
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
byte val = quality.EncodedValue;
val += (byte)value;
frame.SetNextByte(val);
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte(singleEvent.EncodedValue);
frame.AppendBytes(elapsedTime.GetEncodedValue());
frame.AppendBytes(timestamp.GetEncodedValue());
}
private SinglePointWithCP56Time2aOfFault GetSignalElement(ApplicationLayerParameters parameters, byte[] msg, int startIndex)
{
ApplicationLayerParameters m_parameters = parameters.Clone();
m_parameters.SizeOfIOA = 2;
var retVal = new SinglePointWithCP56Time2aOfFault(m_parameters, msg, startIndex, false);
return(retVal);
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte(_fileNameLength);
for (int i = 0; i < _fileNameLength; i++)
{
frame.SetNextByte((byte)_fileName[i]);
}
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte((byte)((int)nof % 256));
frame.SetNextByte((byte)((int)nof / 256));
frame.SetNextByte(nameOfSection);
frame.SetNextByte(afq);
}
public override void Encode(Frame frame, ApplicationLayerParameters parameters, bool isSequence)
{
base.Encode(frame, parameters, isSequence);
frame.SetNextByte(oci.EncodedValue);
frame.SetNextByte(qdp.EncodedValue);
frame.AppendBytes(operatingTime.GetEncodedValue());
frame.AppendBytes(timestamp.GetEncodedValue());
}
internal EndOfInitialization(ApplicationLayerParameters parameters, byte[] msg, int startIndex) :
base(parameters, msg, startIndex, false)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
coi = msg[startIndex];
}
internal SoftwareUpdateCommand(ApplicationLayerParameters parameters, byte[] msg, int startIndex)
: base(parameters, msg, startIndex, false)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
this.qos = new SetpointCommandQualifier(msg[startIndex++]);
}
internal ResetProcessCommand(ApplicationLayerParameters parameters, byte[] msg, int startIndex)
: base(parameters, msg, startIndex, false)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
qrp = msg[startIndex++];
}
public static int GetMaxDataSize(ApplicationLayerParameters parameters)
{
int maxSize = parameters.MaxAsduLength
- parameters.SizeOfTypeId
- parameters.SizeOfVSQ
- parameters.SizeOfCA
- parameters.SizeOfCOT
- parameters.SizeOfIOA
- ENCODED_SIZE;
return(maxSize);
}
public WriteParameters(ApplicationLayerParameters parameters, byte[] msg, int startIndex) : base(parameters, msg, startIndex, true)
{
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
_sn = BitConverter.ToUInt16(msg, startIndex);
startIndex += 2;
_pi = new ParameterIdentification(msg[startIndex++]);
}
internal SwitchSettingArea(ApplicationLayerParameters parameters, byte[] msg, int startIndex)
: base(parameters, msg, startIndex, false)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
this.sn = BitConverter.ToUInt16(msg, startIndex++);
}
internal ParameterActivation(ApplicationLayerParameters parameters, byte[] msg, int startIndex) :
base(parameters, msg, startIndex, false)
{
startIndex += parameters.SizeOfIOA; /* skip IOA */
if ((msg.Length - startIndex) < GetEncodedSize())
{
throw new ASDUParsingException("Message too small");
}
/* parse QPA */
qpa = msg [startIndex++];
}
