Esempio n. 1
0
        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);
        }