private void ProcessTCPPacket(TcpPacket pTCPPacket, ref uint pSequence, Dictionary <uint, byte[]> pBuffer, MapleStream pStream, DateTime pArrivalDate)
{
if (pTCPPacket.SequenceNumber > pSequence)
{
byte[] data;
while (pBuffer.TryGetValue(pSequence, out data))
{
pBuffer.Remove(pSequence);
pStream.Append(data);
pSequence += (uint)data.Length;
}
if (pTCPPacket.SequenceNumber > pSequence)
{
pBuffer[(uint)pTCPPacket.SequenceNumber] = pTCPPacket.PayloadData;
}
}
if (pTCPPacket.SequenceNumber < pSequence)
{
int difference = (int)(pSequence - pTCPPacket.SequenceNumber);
if (difference > 0)
{
byte[] data = pTCPPacket.PayloadData;
if (data.Length > difference)
{
pStream.Append(data, difference, data.Length - difference);
pSequence += (uint)(data.Length - difference);
}
}
}
else if (pTCPPacket.SequenceNumber == pSequence)
{
byte[] data = pTCPPacket.PayloadData;
pStream.Append(data);
pSequence += (uint)data.Length;
}
MaplePacket packet;
bool refreshOpcodes = false;
try
{
mPacketList.BeginUpdate();
while ((packet = pStream.Read(pArrivalDate)) != null)
{
AddPacket(packet);
Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, packet.Outbound, packet.Opcode);
if (!mOpcodes.Exists(op => op.Outbound == packet.Outbound && op.Header == packet.Opcode))
{
mOpcodes.Add(new Opcode(packet.Outbound, packet.Opcode));
refreshOpcodes = true;
}
if (definition != null && !mViewIgnoredMenu.Checked && definition.Ignore)
{
continue;
}
if (packet.Outbound && !mViewOutboundMenu.Checked)
{
continue;
}
if (!packet.Outbound && !mViewInboundMenu.Checked)
{
continue;
}
mPacketList.Items.Add(packet);
if (mPacketList.SelectedItems.Count == 0)
{
packet.EnsureVisible();
}
}
mPacketList.EndUpdate();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
mTerminated = true;
Text += " (Terminated)";
//MainForm.CloseSession(this);
return;
}
if (DockPanel != null && DockPanel.ActiveDocument == this && refreshOpcodes)
{
MainForm.SearchForm.RefreshOpcodes(true);
}
}
internal Results BufferTCPPacket_MS2(TcpPacket pTCPPacket, DateTime pArrivalTime)
{
if (pTCPPacket.Fin || pTCPPacket.Rst)
{
mTerminated = true;
Text += " (Terminated)";
return(mPackets.Count == 0 ? Results.CloseMe : Results.Terminated);
}
if (pTCPPacket.Syn && !pTCPPacket.Ack)
{
mLocalPort = (ushort)pTCPPacket.SourcePort;
mRemotePort = (ushort)pTCPPacket.DestinationPort;
mOutboundSequence = (uint)(pTCPPacket.SequenceNumber + 1);
Text = "Port " + mLocalPort + " - " + mRemotePort;
startTime = DateTime.Now;
try
{
mRemoteEndpoint = ((PacketDotNet.IPv4Packet)pTCPPacket.ParentPacket).SourceAddress.ToString() + ":" + pTCPPacket.SourcePort.ToString();
mLocalEndpoint = ((PacketDotNet.IPv4Packet)pTCPPacket.ParentPacket).DestinationAddress.ToString() + ":" + pTCPPacket.DestinationPort.ToString();
Console.WriteLine("[CONNECTION] From {0} to {1}", mRemoteEndpoint, mLocalEndpoint);
return(Results.Continue);
}
catch
{
return(Results.CloseMe);
}
}
if (pTCPPacket.Syn && pTCPPacket.Ack)
{
mInboundSequence = (uint)(pTCPPacket.SequenceNumber + 1); return(Results.Continue);
}
if (pTCPPacket.PayloadData.Length == 0)
{
return(Results.Continue);
}
if (mBuild == 0)
{
byte[] tcpData = pTCPPacket.PayloadData;
if (pTCPPacket.SourcePort == mLocalPort)
{
mOutboundSequence += (uint)tcpData.Length;
}
else
{
mInboundSequence += (uint)tcpData.Length;
}
byte[] headerData = new byte[tcpData.Length];
Buffer.BlockCopy(tcpData, 0, headerData, 0, tcpData.Length);
PacketReader pr = new PacketReader(headerData);
ushort rawSeq = pr.ReadUShort();
int length = pr.ReadInt();
if (headerData.Length - 6 < length)
{
Console.WriteLine("Connection on port {0} did not have a MapleStory2 Handshake", mLocalEndpoint);
return(Results.CloseMe);
}
ushort header = pr.ReadUShort();
if (header != 1)//RequestVersion
{
Console.WriteLine("Connection on port {0} did not have a valid MapleStory2 Connection Header", mLocalEndpoint);
return(Results.CloseMe);
}
uint version = pr.ReadUInt();
uint localIV = pr.ReadUInt();
uint remoteIV = pr.ReadUInt();
uint blockIV = pr.ReadUInt();
byte ignored = pr.ReadByte();
mBuild = version;
mLocale = 0;//TODO: Handle regions somehow since handshake doesn't contain it
mPatchLocation = "MST";
mOutboundStream = new MapleStream(true, rawSeq, mBuild, localIV, blockIV);
mInboundStream = new MapleStream(false, rawSeq, mBuild, remoteIV, blockIV);
// Another packet was sent with handshake...
if (pr.Remaining > 0)
{
// Buffer it since it is encrypted
mInboundStream.Append(pr.ReadBytes(pr.Remaining));
}
// Generate HandShake packet
Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, false, header);
if (definition == null)
{
definition = new Definition();
definition.Outbound = false;
definition.Locale = mLocale;
definition.Opcode = header;
definition.Name = "RequestVersion";
definition.Build = mBuild;
SaveDefinition(definition);
}
{
var filename = Helpers.GetScriptPath(mLocale, mBuild, false, header);
Helpers.MakeSureFileDirectoryExists(filename);
// Create main script
if (!File.Exists(filename))
{
string contents = @"
using (ScriptAPI) {
AddShort(""Raw Sequence"");
AddField(""Packet Length"", 4);
AddShort(""Opcode"");
AddField(""MapleStory2 Version"", 4);
AddField(""Local Initializing Vector (IV)"", 4);
AddField(""Remote Initializing Vector (IV)"", 4);
AddField(""Block Initializing Vector (IV)"", 4);
}
";
File.WriteAllText(filename, contents);
}
}
// Initial TCP packet may not be split up properly, copy only handshake portion
byte[] handshakePacketData = new byte[6 + length];
Buffer.BlockCopy(tcpData, 0, handshakePacketData, 0, length + 6);
MaplePacket packet = new MaplePacket(pArrivalTime, false, mBuild, mLocale, header, definition == null ? "" : definition.Name, handshakePacketData, (uint)0, remoteIV);
if (!mOpcodes.Exists(op => op.Outbound == packet.Outbound && op.Header == packet.Opcode)) // Should be false, but w/e
{
mOpcodes.Add(new Opcode(packet.Outbound, packet.Opcode));
}
mPacketList.Items.Add(packet);
AddPacket(packet);
Console.WriteLine("[CONNECTION] MapleStory2 V{2}", mLocalEndpoint, mRemoteEndpoint, mBuild);
ProcessTCPPacket(pTCPPacket, ref mInboundSequence, mInboundBuffer, mInboundStream, pArrivalTime);
return(Results.Show);
}
if (pTCPPacket.SourcePort == mLocalPort)
{
ProcessTCPPacket(pTCPPacket, ref mOutboundSequence, mOutboundBuffer, mOutboundStream, pArrivalTime);
}
else
{
ProcessTCPPacket(pTCPPacket, ref mInboundSequence, mInboundBuffer, mInboundStream, pArrivalTime);
}
return(Results.Continue);
}
private void ProcessTCPPacket(TcpPacket pTCPPacket, ref uint pSequence, Dictionary<uint, byte[]> pBuffer, MapleStream pStream, DateTime pArrivalDate)
{
if (pTCPPacket.SequenceNumber > pSequence)
{
byte[] data;
while ((data = pBuffer.GetOrDefault(pSequence, null)) != null)
{
pBuffer.Remove(pSequence);
pStream.Append(data);
pSequence += (uint)data.Length;
}
if (pTCPPacket.SequenceNumber > pSequence) pBuffer[(uint)pTCPPacket.SequenceNumber] = pTCPPacket.PayloadData;
}
if (pTCPPacket.SequenceNumber < pSequence)
{
int difference = (int)(pSequence - pTCPPacket.SequenceNumber);
if (difference > 0)
{
byte[] data = pTCPPacket.PayloadData;
if (data.Length > difference)
{
pStream.Append(data, difference, data.Length - difference);
pSequence += (uint)(data.Length - difference);
}
}
}
else if (pTCPPacket.SequenceNumber == pSequence)
{
byte[] data = pTCPPacket.PayloadData;
pStream.Append(data);
pSequence += (uint)data.Length;
}
MaplePacket packet;
bool refreshOpcodes = false;
try
{
while ((packet = pStream.Read(pArrivalDate, mBuild, mLocale)) != null)
{
mPackets.Add(packet);
Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, packet.Outbound, packet.Opcode);
if (!mOpcodes.Exists(kv => kv.First == packet.Outbound && kv.Second == packet.Opcode))
{
mOpcodes.Add(new Pair<bool, ushort>(packet.Outbound, packet.Opcode));
refreshOpcodes = true;
}
if (definition != null && !mViewIgnoredMenu.Checked && definition.Ignore) continue;
mPacketList.Items.Add(packet);
if (mPacketList.SelectedItems.Count == 0) packet.EnsureVisible();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
mTerminated = true;
Text += " (Terminated)";
//MainForm.CloseSession(this);
return;
}
if (DockPanel.ActiveDocument == this && refreshOpcodes) MainForm.SearchForm.RefreshOpcodes(true);
}
private void ProcessTCPPacket(TcpPacket pTCPPacket, ref uint pSequence, Dictionary <uint, byte[]> pBuffer, MapleStream pStream, DateTime pArrivalDate)
{
if (pTCPPacket.SequenceNumber > pSequence)
{
byte[] data;
while (pBuffer.TryGetValue(pSequence, out data))
{
pBuffer.Remove(pSequence);
pStream.Append(data);
pSequence += (uint)data.Length;
}
if (pTCPPacket.SequenceNumber > pSequence)
{
pBuffer[(uint)pTCPPacket.SequenceNumber] = pTCPPacket.PayloadData;
}
}
if (pTCPPacket.SequenceNumber < pSequence)
{
int difference = (int)(pSequence - pTCPPacket.SequenceNumber);
if (difference > 0)
{
byte[] data = pTCPPacket.PayloadData;
if (data.Length > difference)
{
pStream.Append(data, difference, data.Length - difference);
pSequence += (uint)(data.Length - difference);
}
}
}
else if (pTCPPacket.SequenceNumber == pSequence)
{
byte[] data = pTCPPacket.PayloadData;
pStream.Append(data);
pSequence += (uint)data.Length;
}
MaplePacket packet;
bool refreshOpcodes = false;
try
{
mPacketList.BeginUpdate();
while ((packet = pStream.Read(pArrivalDate)) != null)
{
if (Locale == MapleLocale.GLOBAL && Build >= 193)
{
if (packet.Outbound)
{
if (isOpcodeTableLoaded)
{
ushort realOpcode = 0;
if (mOpcodeTable.TryGetValue(packet.Opcode, out realOpcode))
{
packet.Opcode = realOpcode;
}
packet.SubItems[3].Text = $"0x{packet.Opcode.ToString("X4")}";
}
}
else
{
if (!isOpcodeTableLoaded && packet.Opcode == HeaderTableOpcode)
{
bool healthy = false;
int blockSize, length = 0;
healthy = packet.ReadInt(out blockSize);
healthy = packet.ReadInt(out length);
byte[] buffer = new byte[length];
byte[] key = Encoding.ASCII.GetBytes("M@PleStoryMaPLe!");
healthy = packet.ReadBytes(buffer);
if (healthy)
{
string opcodes = TripleDESCipher.Decrypt(buffer, key);
for (ushort i = 0; i < 0x0A7F - Begin_User; i++)
{
if (i * 4 + 4 <= opcodes.Length)
{
string sOpcode = opcodes.Substring(i * 4, 4);
ushort uOpcode;
if (!UInt16.TryParse(sOpcode, out uOpcode))
{
break;
}
mOpcodeTable.Add(uOpcode, (ushort)(Begin_User + i));
}
else
{
healthy = false;
}
}
}
if (healthy)
{
isOpcodeTableLoaded = true;
}
}
}
}
AddPacket(packet);
Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, packet.Outbound, packet.Opcode);
if (!mOpcodes.Exists(op => op.Outbound == packet.Outbound && op.Header == packet.Opcode))
{
mOpcodes.Add(new Opcode(packet.Outbound, packet.Opcode));
refreshOpcodes = true;
}
if (definition != null && !mViewIgnoredMenu.Checked && definition.Ignore)
{
continue;
}
if (packet.Outbound && !mViewOutboundMenu.Checked)
{
continue;
}
if (!packet.Outbound && !mViewInboundMenu.Checked)
{
continue;
}
mPacketList.Items.Add(packet);
if (mPacketList.SelectedItems.Count == 0)
{
packet.EnsureVisible();
}
}
mPacketList.EndUpdate();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
mTerminated = true;
Text += " (Terminated)";
//MainForm.CloseSession(this);
return;
}
if (DockPanel != null && DockPanel.ActiveDocument == this && refreshOpcodes)
{
MainForm.SearchForm.RefreshOpcodes(true);
}
}
private void ProcessTCPPacket(TcpPacket pTCPPacket, ref uint pSequence, Dictionary <uint, byte[]> pBuffer, MapleStream pStream, DateTime pArrivalDate, bool isInbound)
{
/*
*
* if (pTCPPacket.SequenceNumber > pSequence)
* {
* byte[] data;
* while ((data = pBuffer.GetOrDefault(pSequence, null)) != null)
* {
* pBuffer.Remove(pSequence);
* pStream.Append(data);
* pSequence += (uint)data.Length;
* }
* if (pTCPPacket.SequenceNumber > pSequence) pBuffer[(uint)pTCPPacket.SequenceNumber] = pTCPPacket.PayloadData;
* }
* if (pTCPPacket.SequenceNumber < pSequence)
* {
* int difference = (int)(pSequence - pTCPPacket.SequenceNumber);
* if (difference > 0)
* {
* byte[] data = pTCPPacket.PayloadData;
* if (data.Length > difference)
* {
* pStream.Append(data, difference, data.Length - difference);
* pSequence += (uint)(data.Length - difference);
* }
* }
* }
*
* else if (pTCPPacket.SequenceNumber == pSequence)
* {*/
byte[] data = pTCPPacket.PayloadData;
if (isInbound)
{
pStream.Append(data, ref inboundBuffer);
}
else
{
pStream.Append(data, ref outboundBuffer);
}
//pSequence += (uint)data.Length;
// }
MaplePacket packet;
bool refreshOpcodes = false;
try
{
while ((isInbound ? (packet = pStream.Read(pArrivalDate, mBuild, mLocale, ref isFirstPacket, ref inboundBuffer, ref curInboundIV)) : (packet = pStream.Read(pArrivalDate, mBuild, mLocale, ref isFirstPacket, ref outboundBuffer, ref curOutboundIV))) != null)
{
Console.WriteLine("OK");
Console.WriteLine(" ");
mPackets.Add(packet);
Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, packet.Outbound, packet.Opcode);
if (!mOpcodes.Exists(kv => kv.First == packet.Outbound && kv.Second == packet.Opcode))
{
mOpcodes.Add(new Pair <bool, ushort>(packet.Outbound, packet.Opcode));
refreshOpcodes = true;
}
//if (definition != null && !mViewIgnoredMenu.Checked && definition.Ignore) continue;
mPacketList.Items.Add(packet);
if (mPacketList.SelectedItems.Count == 0)
{
packet.EnsureVisible();
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
mTerminated = true;
Text += " (Terminated)";
//MainForm.CloseSession(this);
return;
}
if (DockPanel.ActiveDocument == this && refreshOpcodes)
{
MainForm.SearchForm.RefreshOpcodes(true);
}
}