Exemplo n.º 1
0
        public static bool Parser(ref TreeNodeCollection mNode,
                                  byte [] PacketData,
                                  ref ListViewItem LItem,
                                  ref uint PreviousHttpSequence,
                                  ref ushort LastTftpPort)
        {
            TreeNode        mNodex;
            string          Tmp   = "";
            int             Index = 0;
            PACKET_ETHERNET PEthernet;

            mNodex      = new TreeNode();
            mNodex.Text = "ETHERNET";
            Function.SetPosition(ref mNodex, Index, Const.LENGTH_OF_ETHERNET, true);

            if ((Index + Const.LENGTH_OF_ETHERNET) > PacketData.Length)
            {
                mNode.Add(mNodex);
                Tmp = "[ Malformed ETHERNET packet. Remaining bytes don't fit an ETHERNET packet. Possibly due to bad decoding ]";
                mNode.Add(Tmp);
                LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = Tmp;

                return(false);
            }

            try
            {
                PEthernet.Destination = Function.GetMACAddress(PacketData, ref Index);;
                Tmp = "Destination : " + PEthernet.Destination;
                mNodex.Nodes.Add(Tmp);
                Function.SetPosition(ref mNodex, Index - 6, 6, false);

                PEthernet.Source = Function.GetMACAddress(PacketData, ref Index);;
                Tmp = "Source : " + PEthernet.Source;
                mNodex.Nodes.Add(Tmp);
                Function.SetPosition(ref mNodex, Index - 6, 6, false);

                PEthernet.Type = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);

                if (PEthernet.Type <= 1500)
                {
                    Tmp = "Length : " + Function.ReFormatString(PEthernet.Type, null);
                    mNodex.Nodes.Add(Tmp);
                    Function.SetPosition(ref mNodex, Index - 2, 2, false);
                }
                else
                {
                    Tmp = "Type : " + Function.ReFormatString(PEthernet.Type, Const.GetETHERTYPEStr(PEthernet.Type));
                    mNodex.Nodes.Add(Tmp);
                    Function.SetPosition(ref mNodex, Index - 2, 2, false);
                }

                LItem.SubItems[Const.LIST_VIEW_PROTOCOL_INDEX].Text    = "ETHERNET";
                LItem.SubItems[Const.LIST_VIEW_SOURCE_INDEX].Text      = PEthernet.Source;
                LItem.SubItems[Const.LIST_VIEW_DESTINATION_INDEX].Text = PEthernet.Destination;
                LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text        = "Ethernet protocol";

                mNode.Add(mNodex);

                if (PEthernet.Type <= 1500)
                {
                    PacketLLC.Parser(ref mNode, PacketData, ref Index, ref LItem, ref PreviousHttpSequence, ref LastTftpPort);
                }
                else
                {
                    switch (PEthernet.Type)
                    {
                    case Const.ETHERTYPE_PUP:
                        break;

                    case Const.ETHERTYPE_SPRITE:
                        break;

                    case Const.ETHERTYPE_NS:
                        break;

                    case Const.ETHERTYPE_TRAIL:
                        break;

                    case Const.ETHERTYPE_MOPDL:
                        break;

                    case Const.ETHERTYPE_MOPRC:
                        break;

                    case Const.ETHERTYPE_DN:
                        break;

                    case Const.ETHERTYPE_LAT:
                        break;

                    case Const.ETHERTYPE_SCA:
                        break;

                    case Const.ETHERTYPE_IP:
                        PacketINTERNET.Parser(ref mNode, PacketData, ref Index, ref LItem, ref PreviousHttpSequence, ref LastTftpPort);
                        break;

                    case Const.ETHERTYPE_ARP:
                        PacketARP.Parser(ref mNode, PacketData, ref Index, ref LItem);
                        break;

                    case Const.ETHERTYPE_REVARP:
                        break;

                    case Const.ETHERTYPE_LANBRIDGE:
                        break;

                    case Const.ETHERTYPE_DECDNS:
                        break;

                    case Const.ETHERTYPE_DECDTS:
                        break;

                    case Const.ETHERTYPE_VEXP:
                        break;

                    case Const.ETHERTYPE_VPROD:
                        break;

                    case Const.ETHERTYPE_ATALK:
                        break;

                    case Const.ETHERTYPE_AARP:
                        break;

                    case Const.ETHERTYPE_8021Q:
                        break;

                    case Const.ETHERTYPE_IPX:
                        PacketIPX.Parser(ref mNode, PacketData, ref Index, ref LItem);
                        break;

                    case Const.ETHERTYPE_IPV6:
                        break;

                    case Const.ETHERTYPE_LOOPBACK:
                        PacketLOOPBACK.Parser(ref mNode, PacketData, ref Index, ref LItem);
                        break;
                    }
                }
            }
            catch (Exception Ex)
            {
                mNode.Add(mNodex);
                Tmp = "[ Malformed ETHERNET packet. Remaining bytes don't fit an ETHERNET 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 = "[ Malformed ETHERNET packet. Remaining bytes don't fit an ETHERNET packet. Possibly due to bad decoding ]";

                return(false);
            }

            return(true);
        }
Exemplo n.º 2
0
        public static bool Parser(byte [] PacketData,
                                  ref ListViewItem LItem,
                                  ref string TypeInfo,
                                  ref uint PreviousHttpSequence,
                                  ref ushort LastTftpPort)
        {
            string          Tmp   = "";
            int             Index = 0;
            PACKET_ETHERNET PEthernet;

            if ((Index + Const.LENGTH_OF_ETHERNET) > PacketData.Length)
            {
                Tmp = "[ Malformed ETHERNET packet. Remaining bytes don't fit an ETHERNET packet. Possibly due to bad decoding ]";
                LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = Tmp;

                return(false);
            }

            try
            {
                PEthernet.Destination = Function.GetMACAddress(PacketData, ref Index);;
                PEthernet.Source      = Function.GetMACAddress(PacketData, ref Index);;
                PEthernet.Type        = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);

                LItem.SubItems[Const.LIST_VIEW_PROTOCOL_INDEX].Text    = "ETHERNET";
                LItem.SubItems[Const.LIST_VIEW_SOURCE_INDEX].Text      = PEthernet.Source;
                LItem.SubItems[Const.LIST_VIEW_DESTINATION_INDEX].Text = PEthernet.Destination;
                LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text        = "Ethernet protocol";

                if (PEthernet.Type <= 1500)
                {
                    PacketLLC.Parser(PacketData, ref Index, ref LItem, ref TypeInfo, ref PreviousHttpSequence, ref LastTftpPort);
                }
                else
                {
                    switch (PEthernet.Type)
                    {
                    case Const.ETHERTYPE_PUP:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_SPRITE:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_NS:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_TRAIL:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_MOPDL:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_MOPRC:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_DN:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_LAT:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_SCA:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_IP:
                        TypeInfo = "Other";
                        PacketINTERNET.Parser(PacketData, ref Index, ref LItem, ref TypeInfo, ref PreviousHttpSequence, ref LastTftpPort);
                        break;

                    case Const.ETHERTYPE_ARP:
                        TypeInfo = "Other";
                        PacketARP.Parser(PacketData, ref Index, ref LItem);
                        break;

                    case Const.ETHERTYPE_REVARP:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_LANBRIDGE:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_DECDNS:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_DECDTS:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_VEXP:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_VPROD:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_ATALK:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_AARP:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_8021Q:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_IPX:
                        TypeInfo = "IPX";
                        PacketIPX.Parser(PacketData, ref Index, ref LItem);
                        break;

                    case Const.ETHERTYPE_IPV6:
                        TypeInfo = "Other";
                        break;

                    case Const.ETHERTYPE_LOOPBACK:
                        TypeInfo = "Other";
                        PacketLOOPBACK.Parser(PacketData, ref Index, ref LItem);
                        break;
                    }
                }
            }
            catch
            {
                LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = "[ Malformed ETHERNET packet. Remaining bytes don't fit an ETHERNET packet. Possibly due to bad decoding ]";

                return(false);
            }

            return(true);
        }