public RawPDU Write()
{
RawPDU pdu = new RawPDU((byte)0x07);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Source", (byte)_s);
pdu.Write("Reason", (byte)_r);
return(pdu);
}
public RawPDU Write()
{
RawPDU pdu = new RawPDU(0x04);
foreach (PDV pdv in _pdvs)
{
pdv.Write(pdu);
}
return(pdu);
}
public RawPDU Write()
{
RawPDU pdu = new RawPDU((byte)0x03);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Result", (byte)_rt);
pdu.Write("Source", (byte)_so);
pdu.Write("Reason", (byte)_rn);
return(pdu);
}
public void Write(RawPDU pdu)
{
byte mch = (byte)((_last ? 2 : 0) + (_command ? 1 : 0));
pdu.MarkLength32("PDV-Length");
pdu.Write("Presentation Context ID", _pcid);
pdu.Write("Message Control Header", mch);
pdu.Write("PDV Value", _value);
pdu.WriteLength32();
}
public void Read(RawPDU raw)
{
uint len = raw.Length;
uint read = 0;
while (read < len)
{
PDV pdv = new PDV();
read += pdv.Read(raw);
_pdvs.Add(pdv);
}
}
public uint Read(RawPDU raw)
{
uint len = raw.ReadUInt32("PDV-Length");
_pcid = raw.ReadByte("Presentation Context ID");
byte mch = raw.ReadByte("Message Control Header");
_value = raw.ReadBytes("PDV Value", (int)len - 2);
_command = (mch & 0x01) != 0;
_last = (mch & 0x02) != 0;
return(len + 4);
}
private void WritePDU(bool last)
{
if (_pdu.PDVs.Count == 0 || ((CurrentPduSize() + 6) < _max && GetBufferLength() > 0))
{
CreatePDV(last);
}
if (_pdu.PDVs.Count > 0)
{
if (last)
{
_pdu.PDVs[_pdu.PDVs.Count - 1].IsLastFragment = true;
}
RawPDU raw = _pdu.Write();
_networkBase.EnqueuePdu(raw);
if (OnTick != null)
{
OnTick();
}
_pdu = new PDataTF();
}
}
public void Read(RawPDU raw)
{
raw.ReadUInt32("Reserved");
}
public void Read(RawPDU raw)
{
uint l = raw.Length;
raw.ReadUInt16("Version");
raw.SkipBytes("Reserved", 2);
raw.SkipBytes("Reserved", 16);
raw.SkipBytes("Reserved", 16);
raw.SkipBytes("Reserved", 32);
l -= 68;
while (l > 0)
{
byte type = raw.ReadByte("Item-Type");
l -= 1;
if (type == 0x10)
{
// Application Context
raw.SkipBytes("Reserved", 1);
ushort c = raw.ReadUInt16("Item-Length");
raw.SkipBytes("Value", (int)c);
l -= 3 + (uint)c;
}
else
if (type == 0x21)
{
// Presentation Context
raw.ReadByte("Reserved");
ushort pl = raw.ReadUInt16("Presentation Context Item-Length");
byte id = raw.ReadByte("Presentation Context ID");
raw.ReadByte("Reserved");
byte res = raw.ReadByte("Presentation Context Result/Reason");
raw.ReadByte("Reserved");
l -= (uint)pl + 3;
pl -= 4;
// Presentation Context Transfer Syntax
raw.ReadByte("Presentation Context Item-Type (0x40)");
raw.ReadByte("Reserved");
ushort tl = raw.ReadUInt16("Presentation Context Item-Length");
string tx = raw.ReadString("Presentation Context Syntax UID", tl);
pl -= (ushort)(tl + 4);
_assoc.SetPresentationContextResult(id, (DicomPresContextResult)res);
TransferSyntax acceptedSyntax = TransferSyntax.GetTransferSyntax(tx);
if (acceptedSyntax != null)
{
_assoc.SetAcceptedTransferSyntax(id, acceptedSyntax);
}
else
{
_assoc.GetPresentationContext(id).ClearTransfers();
}
}
else
if (type == 0x50)
{
// User Information
raw.ReadByte("Reserved");
ushort il = raw.ReadUInt16("User Information Item-Length");
l -= (uint)(il + 3);
while (il > 0)
{
byte ut = raw.ReadByte("User Item-Type");
raw.ReadByte("Reserved");
ushort ul = raw.ReadUInt16("User Item-Length");
il -= (ushort)(ul + 4);
if (ut == 0x51)
{
_assoc.RemoteMaximumPduLength = raw.ReadUInt32("Max PDU Length");
}
else if (ut == 0x52)
{
_assoc.ImplementationClass = DicomUids.Lookup(raw.ReadString("Implementation Class UID", ul));
}
else if (ut == 0x55)
{
_assoc.ImplementationVersion = raw.ReadString("Implementation Version", ul);
}
else
{
raw.SkipBytes("User Item Value", (int)ul);
}
}
}
else
{
raw.SkipBytes("Reserved", 1);
ushort il = raw.ReadUInt16("User Item-Length");
raw.SkipBytes("Unknown User Item", il);
l -= (uint)(il + 3);
}
}
}
public RawPDU Write()
{
RawPDU pdu = new RawPDU((byte)0x02);
pdu.Write("Version", (ushort)0x0001);
pdu.Write("Reserved", 0x00, 2);
pdu.Write("Called AE", _assoc.CalledAE, 16, ' ');
pdu.Write("Calling AE", _assoc.CallingAE, 16, ' ');
pdu.Write("Reserved", 0x00, 32);
// Application Context
pdu.Write("Item-Type", (byte)0x10);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Application Context Name", DicomUids.DICOMApplicationContextName.UID);
pdu.WriteLength16();
foreach (DicomPresContext pc in _assoc.GetPresentationContexts())
{
// Presentation Context
pdu.Write("Item-Type", (byte)0x21);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Presentation Context ID", (byte)pc.ID);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Result", (byte)pc.Result);
pdu.Write("Reserved", (byte)0x00);
// Transfer Syntax
pdu.Write("Item-Type", (byte)0x40);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
if (pc.AcceptedTransferSyntax != null) //
{
pdu.Write("Transfer Syntax UID", pc.AcceptedTransferSyntax.DicomUid.UID);
}
pdu.WriteLength16();
pdu.WriteLength16();
}
// User Data Fields
pdu.Write("Item-Type", (byte)0x50);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
// Maximum PDU
pdu.Write("Item-Type", (byte)0x51);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Item-Length", (ushort)0x0004);
pdu.Write("Max PDU Length", (uint)_assoc.LocalMaximumPduLength);
// Implementation Class UID
pdu.Write("Item-Type", (byte)0x52);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Implementation Class UID", DicomImplementation.ClassUID.UID);
pdu.WriteLength16();
// Implementation Version
pdu.Write("Item-Type", (byte)0x55);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Implementation Version", DicomImplementation.Version);
pdu.WriteLength16();
pdu.WriteLength16();
return(pdu);
}
public void Read(RawPDU raw)
{
uint l = raw.Length;
raw.ReadUInt16("Version");
raw.SkipBytes("Reserved", 2);
_assoc.CalledAE = raw.ReadString("Called AE", 16);
_assoc.CallingAE = raw.ReadString("Calling AE", 16);
raw.SkipBytes("Reserved", 32);
l -= 2 + 2 + 16 + 16 + 32;
while (l > 0)
{
byte type = raw.ReadByte("Item-Type");
raw.SkipBytes("Reserved", 1);
ushort il = raw.ReadUInt16("Item-Length");
l -= 4 + (uint)il;
if (type == 0x10)
{
// Application Context
raw.SkipBytes("Application Context", il);
}
else
if (type == 0x20)
{
// Presentation Context
byte id = raw.ReadByte("Presentation Context ID");
raw.SkipBytes("Reserved", 3);
il -= 4;
while (il > 0)
{
byte pt = raw.ReadByte("Presentation Context Item-Type");
raw.SkipBytes("Reserved", 1);
ushort pl = raw.ReadUInt16("Presentation Context Item-Length");
string sx = raw.ReadString("Presentation Context Syntax UID", pl);
if (pt == 0x30)
{
SopClass sopClass = SopClass.GetSopClass(sx);
if (sopClass == null)
{
sopClass = new SopClass("Private SOP Class", sx, false);
}
_assoc.AddPresentationContext(id, sopClass);
}
else if (pt == 0x40)
{
TransferSyntax transferSyntax = TransferSyntax.GetTransferSyntax(sx);
if (transferSyntax == null)
{
transferSyntax = new TransferSyntax("Private Syntax", sx, true, false, true, false, false, false);
}
_assoc.AddTransferSyntax(id, transferSyntax);
}
il -= (ushort)(4 + pl);
}
}
else
if (type == 0x50)
{
// User Information
while (il > 0)
{
byte ut = raw.ReadByte("User Information Item-Type");
raw.SkipBytes("Reserved", 1);
ushort ul = raw.ReadUInt16("User Information Item-Length");
il -= (ushort)(4 + ul);
if (ut == 0x51)
{
_assoc.RemoteMaximumPduLength = raw.ReadUInt32("Max PDU Length");
}
else if (ut == 0x52)
{
_assoc.ImplementationClass = new DicomUid(raw.ReadString("Implementation Class UID", ul), "Implementation Class UID", UidType.Unknown);
}
else if (ut == 0x53)
{
_assoc.RemoteMaxOperationsInvoked = raw.ReadUInt16("Max Operations Invoked");
_assoc.RemoteMaxOperationsPerformed = raw.ReadUInt16("Max Operations Performed");
}
else if (ut == 0x55)
{
_assoc.ImplementationVersion = raw.ReadString("Implementation Version", ul);
}
else if (ut == 0x54)
{
raw.SkipBytes("SCU/SCP Role Selection", ul);
/*
* ushort rsul = raw.ReadUInt16();
* if ((rsul + 4) != ul) {
* throw new DicomNetworkException("SCU/SCP role selection length (" + ul + " bytes) does not match uid length (" + rsul + " + 4 bytes)");
* }
* raw.ReadChars(rsul); // Abstract Syntax
* raw.ReadByte(); // SCU role
* raw.ReadByte(); // SCP role
*/
}
else
{
LogAdapter.Logger.ErrorWithFormat("Unhandled user item: 0x{0:x2} ({1} + 4 bytes)", ut, ul);
raw.SkipBytes("Unhandled User Item", ul);
}
}
}
}
}
public RawPDU Write()
{
RawPDU pdu = new RawPDU(0x01);
pdu.Write("Version", (ushort)0x0001);
pdu.Write("Reserved", 0x00, 2);
pdu.Write("Called AE", _assoc.CalledAE, 16, ' ');
pdu.Write("Calling AE", _assoc.CallingAE, 16, ' ');
pdu.Write("Reserved", 0x00, 32);
// Application Context
pdu.Write("Item-Type", (byte)0x10);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Application Context Name", DicomUids.DICOMApplicationContextName.UID);
pdu.WriteLength16();
if (_assoc.GetPresentationContexts().Count == 0)
{
throw new DicomException("No presentation contexts set for association");
}
foreach (DicomPresContext pc in _assoc.GetPresentationContexts())
{
// Presentation Context
pdu.Write("Item-Type", (byte)0x20);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Presentation Context ID", (byte)pc.ID);
pdu.Write("Reserved", (byte)0x00, 3);
// Abstract Syntax
pdu.Write("Item-Type", (byte)0x30);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Abstract Syntax UID", pc.AbstractSyntax.Uid);
pdu.WriteLength16();
if (pc.GetTransfers().Count == 0)
{
throw new DicomException("No transfer syntaxes set for presentation context " + pc.AbstractSyntax.Name);
}
// Transfer Syntax
foreach (TransferSyntax ts in pc.GetTransfers())
{
pdu.Write("Item-Type", (byte)0x40);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Transfer Syntax UID", ts.DicomUid.UID);
pdu.WriteLength16();
}
pdu.WriteLength16();
}
// User Data Fields
pdu.Write("Item-Type", 0x50);
pdu.Write("Reserved", 0x00);
pdu.MarkLength16("Item-Length");
// Maximum PDU
pdu.Write("Item-Type", 0x51);
pdu.Write("Reserved", 0x00);
pdu.Write("Item-Length", (ushort)0x0004);
pdu.Write("Max PDU Length", _assoc.LocalMaximumPduLength);
// Asychronous Window
if (_assoc.LocalMaxOperationsInvoked != 1 || _assoc.LocalMaxOperationsPerformed != 1)
{
pdu.Write("Item-Type", (byte)0x53);
pdu.Write("Reserved", (byte)0x00);
pdu.Write("Item-Length", (ushort)0x0004);
pdu.Write("Max Operations Invoked", (ushort)_assoc.LocalMaxOperationsInvoked);
pdu.Write("Max Operations Invoked", (ushort)_assoc.LocalMaxOperationsPerformed);
}
// SCU / SCP Role Selection
// Implementation Class UID
pdu.Write("Item-Type", (byte)0x52);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Implementation Class UID", DicomImplementation.ClassUID.UID);
pdu.WriteLength16();
// Implementation Version
pdu.Write("Item-Type", (byte)0x55);
pdu.Write("Reserved", (byte)0x00);
pdu.MarkLength16("Item-Length");
pdu.Write("Implementation Version", DicomImplementation.Version);
pdu.WriteLength16();
pdu.WriteLength16();
return(pdu);
}
