public static bool Parser(ref TreeNodeCollection mNode,
byte [] PacketData, ref int Index,
ref ListViewItem LItem)
{
TreeNode mNodex;
TreeNode mNode1;
string Tmp = "";
int kk = 0, kkk = 0;
PACKET_DLSW PDlsw;
byte byteValue = 0;
mNodex = new TreeNode();
mNodex.Text = "DLSw ( Data Link Switching )";
kk = Index;
PDlsw.DlcHeaderLength = 0;
try
{
mNode1 = new TreeNode();
mNode1.Text = "DLSW HEADER";
kkk = Index;
PDlsw.Version = PacketData[Index++];
Tmp = "Version : " + Function.ReFormatString(PDlsw.Version, Const.GetDlswVersionString(PDlsw.Version));
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.HeaderLength = PacketData[Index++];
Tmp = "Header Length : " + Function.ReFormatString(PDlsw.HeaderLength, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.MessageLength = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Message Length : " + Function.ReFormatString(PDlsw.MessageLength, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 2, 2, false);
PDlsw.RemoteDataLinkCorrelator = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Remote DLC : " + Function.ReFormatString(PDlsw.RemoteDataLinkCorrelator, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.RemoteDLCPortId = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Remote DLC PID : " + Function.ReFormatString(PDlsw.HeaderLength, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.Reserved1 = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.HeaderLength, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 2, 2, false);
PDlsw.MessageType = PacketData[Index++];
Tmp = "Message Tpye : " + Function.ReFormatString(PDlsw.MessageType, Const.GetDlswTypeString(PDlsw.MessageType));
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.FlowControlByte = PacketData[Index++];
Tmp = "Flow Control Byte : " + Function.ReFormatString(PDlsw.FlowControlByte, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
if (PDlsw.HeaderLength != Const.DLSW_INFO_HEADER)
{
PDlsw.ProtocolId = PacketData[Index++];
Tmp = "Protocol ID : " + Function.ReFormatString(PDlsw.ProtocolId, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.HeaderNumber = PacketData[Index++];
Tmp = "Header Number : " + Function.ReFormatString(PDlsw.HeaderNumber, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.Reserved2 = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.Reserved2, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 2, 2, false);
PDlsw.LargestFrameSize = PacketData[Index++];
Tmp = "Largest Frame Size : " + Function.ReFormatString(PDlsw.LargestFrameSize, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.SSPFlags = PacketData[Index++];
Tmp = "SSP Flags : " + Function.ReFormatString(PDlsw.SSPFlags, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.CircuitPriority = PacketData[Index++];
Tmp = "Circuit Priority : " + Function.ReFormatString(PDlsw.CircuitPriority, Const.GetDlswPriorityString(PDlsw.CircuitPriority));
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.OldMessageType = PacketData[Index++];
Tmp = "Old Message Type : " + Function.ReFormatString(PDlsw.OldMessageType, Const.GetDlswTypeString(PDlsw.OldMessageType));
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
if (PDlsw.MessageType == Const.DLSW_CAP_EXCHANGE)
{
//PDlsw.ProtocolId = PacketData[ Index ++ ];
Index += 14;
Tmp = "Not used for CapEx";
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 14, 14, false);
PDlsw.FrameDirector = PacketData[Index++];
Tmp = "Frame Direction : " + Function.ReFormatString(PDlsw.FrameDirector, PDlsw.FrameDirector == 1 ? "Capabilities request":"Capabilities response");
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
//PDlsw.ProtocolId = PacketData[ Index ++ ];
Index += 33;
Tmp = "Not used for CapEx";
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 33, 33, false);
}
else
{
PDlsw.TargetMACAddress = Function.GetMACAddress(PacketData, ref Index);
Tmp = "Target MAC Address : " + PDlsw.TargetMACAddress;
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 6, 6, false);
PDlsw.OriginMACAddress = Function.GetMACAddress(PacketData, ref Index);
Tmp = "Origin MAC Address : " + PDlsw.OriginMACAddress;
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 6, 6, false);
PDlsw.OriginLSAP = PacketData[Index++];
Tmp = "Origin Link SAP : " + Function.ReFormatString(PDlsw.OriginLSAP, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.TargetLSAP = PacketData[Index++];
Tmp = "Target Link SAP : " + Function.ReFormatString(PDlsw.TargetLSAP, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.FrameDirector = PacketData[Index++];
Tmp = "Frame Direction : " + Function.ReFormatString(PDlsw.FrameDirector, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.Reserved3 = PacketData[Index++];
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.Reserved3, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 1, 1, false);
PDlsw.Reserved5 = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.Reserved5, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 2, 2, false);
PDlsw.DlcHeaderLength = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "DLC Header Length : " + Function.ReFormatString(PDlsw.DlcHeaderLength, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 2, 2, false);
PDlsw.OriginDLCPortId = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.OriginDLCPortId, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.OriginDLC = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Origin DLC : " + Function.ReFormatString(PDlsw.OriginDLC, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.OriginTransporter = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Origin Transport ID : " + Function.ReFormatString(PDlsw.OriginTransporter, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.TargetDLCPortId = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Target DLC Port ID : " + Function.ReFormatString(PDlsw.TargetDLCPortId, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.TargetDataLink = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Target DLC : " + Function.ReFormatString(PDlsw.TargetDataLink, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.TargetTransportId = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Target Transport ID : " + Function.ReFormatString(PDlsw.TargetTransportId, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
PDlsw.Reserved6 = Function.Get4Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Reserved : " + Function.ReFormatString(PDlsw.Reserved6, null);
mNode1.Nodes.Add(Tmp);
Function.SetPosition(ref mNode1, Index - 4, 4, false);
}
}
Function.SetPosition(ref mNode1, kk, Index - kk, false);
mNodex.Nodes.Add(mNode1);
Tmp = "Dlsw Data ";
mNode1.Nodes.Add(Tmp);
switch (PDlsw.MessageType)
{
case Const.DLSW_CAP_EXCHANGE:
ParseCapEx(ref mNode, PacketData, ref Index, ref LItem);
break;
case Const.DLSW_IFCM:
case Const.DLSW_INFOFRAME:
case Const.DLSW_KEEPALIVE:
Tmp = "Data ";
mNode1.Nodes.Add(Tmp);
break;
default:
if (PDlsw.DlcHeaderLength != 0)
{
Index = PDlsw.HeaderLength;
byteValue = PacketData[Index++];
Tmp = "DLC Header - AC byte : " + Function.ReFormatString(byteValue, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
byteValue = PacketData[Index++];
Tmp = "DLC Header - FC byte : " + Function.ReFormatString(byteValue, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
byteValue = PacketData[Index++];
Tmp = "DLC Header - DA : " + Function.GetMACAddress(PacketData, ref Index);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 6, 6, false);
Tmp = "DLC Header - SA : " + Function.GetMACAddress(PacketData, ref Index);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 6, 6, false);
Tmp = "DLC Header - RIF : " + Function.GetString(PacketData, ref Index, 18);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 18, 18, false);
byteValue = PacketData[Index++];
Tmp = "DLC Header - DSAP : " + Function.ReFormatString(byteValue, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
byteValue = PacketData[Index++];
Tmp = "DLC Header - SSAP : " + Function.ReFormatString(byteValue, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
byteValue = PacketData[Index++];
Tmp = "DLC Header - Ctrl : " + Function.ReFormatString(byteValue, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
}
Tmp = "Dlsw Data ";
mNode1.Nodes.Add(Tmp);
break;
}
Function.SetPosition(ref mNodex, kk, Index - kk, true);
LItem.SubItems[Const.LIST_VIEW_PROTOCOL_INDEX].Text = "DLSw";
Tmp = "DLSw " + PDlsw.Version.ToString() + " : " + Const.GetDlswVersionString(PDlsw.Version);
Tmp += "," + PDlsw.MessageType.ToString() + " : " + Const.GetDlswTypeString(PDlsw.MessageType);
LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = Tmp;
mNode.Add(mNodex);
}
catch (Exception Ex)
{
mNode.Add(mNodex);
Tmp = "[ Malformed DLSw packet. Remaining bytes don't fit an DLSw packet. Possibly due to bad decoding ]";
mNode.Add(Tmp);
Tmp = "[ Exception raised is <" + Ex.GetType().ToString() + "> at packet index <" + Index.ToString() + "> ]";
mNode.Add(Tmp);
LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = Tmp;
return(false);
}
return(true);
}