public static bool Parser(ref TreeNodeCollection mNode,
byte [] PacketData, ref int Index,
ref ListViewItem LItem)
{
TreeNode mNodex;
string Tmp = "";
PACKET_ARP PArp;
mNodex = new TreeNode();
mNodex.Text = "ARP ( Address Resolution Protocol )";
Function.SetPosition(ref mNodex, Index, Const.LENGTH_OF_ARP, true);
if ((Index + Const.LENGTH_OF_ARP) > PacketData.Length)
{
mNode.Add(mNodex);
Tmp = "[ Malformed ARP packet. Remaining bytes don't fit an ARP packet. Possibly due to bad decoding ]";
mNode.Add(Tmp);
LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = Tmp;
return(false);
}
try
{
PArp.HardwareType = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Hardware Type : " + Function.ReFormatString(PArp.HardwareType, GetHardwareList(PArp.HardwareType));
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 2, 2, false);
PArp.ProtocolType = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Protocol Type : " + Function.ReFormatString(PArp.ProtocolType, Const.GetETHERTYPEStr(PArp.ProtocolType));
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 2, 2, false);
PArp.HardwareSize = PacketData[Index++];
Tmp = "Hardware Size : " + Function.ReFormatString(PArp.HardwareSize, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
PArp.ProtocolSize = PacketData[Index++];
Tmp = "Protocol Size : " + Function.ReFormatString(PArp.ProtocolSize, null);
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 1, 1, false);
PArp.OpCode = Function.Get2Bytes(PacketData, ref Index, Const.NORMAL);
Tmp = "Opcode : " + Function.ReFormatString(PArp.OpCode, GetOpCodeList(PArp.OpCode));
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 2, 2, false);
PArp.SenderMACAddress = Function.GetMACAddress(PacketData, ref Index);
Tmp = "Sender MAC Address : " + PArp.SenderMACAddress;
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 6, 6, false);
PArp.SenderIpAddress = Function.GetIpAddress(PacketData, ref Index);
Tmp = "Sender Ip Address : " + PArp.SenderIpAddress;
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 4, 4, false);
PArp.TargetMACAddress = Function.GetMACAddress(PacketData, ref Index);
Tmp = "Target MAC Address : " + PArp.TargetMACAddress;
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 6, 6, false);
PArp.TargetIpAddress = Function.GetIpAddress(PacketData, ref Index);
Tmp = "Target Ip Address : " + PArp.TargetIpAddress;
mNodex.Nodes.Add(Tmp);
Function.SetPosition(ref mNodex, Index - 4, 4, false);
LItem.SubItems[Const.LIST_VIEW_PROTOCOL_INDEX].Text = "ARP";
LItem.SubItems[Const.LIST_VIEW_SOURCE_INDEX].Text = PArp.SenderIpAddress;
LItem.SubItems[Const.LIST_VIEW_DESTINATION_INDEX].Text = PArp.TargetIpAddress;
LItem.SubItems[Const.LIST_VIEW_INFO_INDEX].Text = GetInfoARP(PArp);
mNode.Add(mNodex);
}
catch (Exception Ex)
{
mNode.Add(mNodex);
Tmp = "[ Malformed ARP packet. Remaining bytes don't fit an ARP 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);
}
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);
}
