public static void HandleChannelLoad(PacketReader packet, CenterServer serv) { byte channels = packet.ReadByte(); var ret = new Dictionary<int, int>(); for (int i = 0; i < channels; ++i) { ret.Add(packet.ReadByte(), packet.ReadInt()); } serv.channels = ret; }
public void handlePacket(Client c, PacketReader packet) { packet.Skip(1); byte world = packet.ReadByte(); byte channel = packet.ReadByte(); c.RecentChannel = channel; c.RecentWorld = world; c.Characters = Database.GetCharacters(c.AccountId); c.SaveAccountToDatabase(); c.SendPacket(PacketDefinitions.CharacterLoadout(c)); }
public void handlePacket(Client c, PacketReader packet) { int tickCount = packet.ReadInt(); byte inventoryType = packet.ReadByte(); c.SendPacket(CWvsContext.BroadcastMessage(5, string.Format("InventorySort {0},{1}", tickCount, inventoryType))); c.SendPacket(CUser.UpdatePrimaryStat(PrimaryStat.Null)); }
public static void ClientCount(GameServerConnection con, PacketReader packet) { byte serverid = packet.ReadByte(); int count = packet.ReadInt(); foreach (GameServer serv in Program.mServer.gameServers.Values) if (serv.ID == serverid) serv.ClientCount = count; }
public void handlePacket(Client c, PacketReader packet) { int tickCount = packet.ReadInt(); byte inventoryType = packet.ReadByte(); short src = packet.ReadShort(); short dst = packet.ReadShort(); short quantity = packet.ReadShort(); c.SendPacket(CWvsContext.BroadcastMessage(5, string.Format("InventoryOperation {0},{1} {2},{3},{4}", tickCount, inventoryType, src, dst, quantity))); c.SendPacket(CUser.UpdatePrimaryStat(PrimaryStat.Null)); }
public void handlePacket(Client c, PacketReader packet) { byte region = packet.ReadByte(); short majorVersion = packet.ReadShort(); short minorVersion = packet.ReadShort(); if (region == 8 // North America && majorVersion == Common.Config.MajorVersion) c.validated = true; else { Logger.Write(Logger.LogTypes.경고, "Client at {0} connected with invalid version ({1},{2},{3})", c.mSession.Socket.RemoteEndPoint.ToString(), region, majorVersion, minorVersion); c.Close(); } }
public static void Identify(GameServerConnection con, PacketReader packet) { byte serverType = packet.ReadByte(); byte[] key = packet.ReadBytes(128); con.Verified = true; for (int i = 0; i < 128; i++) if (key[i] != Config.CenterServerKey[i]) { Console.WriteLine("byte{0} != {1} position: {2}", key[i], Config.CenterServerKey[i], i); con.Verified = false; } if (con.Verified == false) { Logger.Write(Logger.LogTypes.오류, "Server at " + con.mSession.Socket.RemoteEndPoint.ToString() + " failed hash check."); return; } con.ServerType = serverType; con.Verified = true; switch (serverType) { case 0x01: foreach (GameServer serv in Program.mServer.gameServers.Values) if (serv.Connection == null && serv.ServerType == GameServerType.Login) { con.mGameServer = serv; serv.Connection = con; } break; case 0x02: foreach (GameServer serv in Program.mServer.gameServers.Values) if (serv.Connection == null && serv.ServerType == GameServerType.Game) { con.mGameServer = serv; serv.Connection = con; break; } break; } con.mSession.SendPacket(CenterServerPacketDefinitions.IdentifySuccess(con.mGameServer.ID)); }
public void handlePacket(Client c, PacketReader packet) { int portalCount = packet.ReadByte(); int crc = packet.ReadInt(); int tickcount = packet.ReadInt(); c.mCharacter.mPosition = new System.Drawing.Point(packet.ReadShort(), packet.ReadShort()); Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, packet.ReadBytes(packet.Length - packet.Position))); //Console.WriteLine("UH....PACKET?\r\n{0}", CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, packet.ReadBytes(packet.Length - packet.Position)).ToString2s()); /* int portalCount = packet.ReadByte(); int crc = packet.ReadInt(); int tickcount = packet.ReadInt(); short x = packet.ReadShort(); short y = packet.ReadShort(); c.mCharacter.mPosition = new System.Drawing.Point(x, y); byte[] movement = packet.ReadBytes(packet.Length - packet.Position); packet.ReadBytes(4); int tickcount = packet.ReadInt(); c.mCharacter.mPosition = new System.Drawing.Point(packet.ReadShort(), packet.ReadShort()); packet.ReadBytes(4); - c.mCharacter.ParseMovementPath(packet);*/ //c.mCharacter.ParseMovementPath(packet); //Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, MovementParser.ParseMovementPath(packet))); //Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, packet.ReadBytes(packet.Length - packet.Position))); //if (x < Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].WzData //c.mCharacter.ParseMovementPath(packet); //Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, MovementParser.ParseMovementPath(packet))); //Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, movement)); //Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].SendPacket(c, CField.UserMove(c.mCharacter.mID, c.mCharacter.mPosition, c.mCharacter.ParseMovementPath(packet))); /*[9/12/2012 12:40:34 AM][대타] 받은 패킷 * 49 00 * 01 AC 7E BC BC 80 15 FC 05 BA 02 12 01 00 00 00 00 03 00 BA 02 12 01 00 00 00 00 61 00 00 00 00 00 * 04 4A 01 00 C8 02 12 01 96 00 00 00 61 00 00 00 00 00 02 96 00 00 CC 02 12 01 7E 00 00 00 61 00 00 * 00 00 00 04 1E 00 11 00 00 00 00 00 40 44 44 00 BA 02 12 01 CC 02 12 01 * */ }
public void handlePacket(Client c, PacketReader packet) { string charname = Database.MySqlEscape(packet.ReadMapleString()); int jobtype = packet.ReadInt(); short specialjobtype = packet.ReadShort(); byte gender = packet.ReadByte(); packet.Skip(2); int face = packet.ReadInt(); int hair = packet.ReadInt(); int haircolor = packet.ReadInt(); int skin = packet.ReadInt(); int top = packet.ReadInt(); int bottom = 0; if (jobtype < 5) bottom = packet.ReadInt(); int shoes = packet.ReadInt(); int weapon = packet.ReadInt(); int shield = 0; if (jobtype == 6) shield = packet.ReadInt(); Character newchr = new Character(); newchr.mName = charname; if (jobtype == 0) { newchr.mPrimaryStats.Job = (short)Job.Citizen; } else if (jobtype == 1) { newchr.mPrimaryStats.Job = (short)Job.Beginner; } else if (jobtype == 2) { newchr.mPrimaryStats.Job = (short)Job.Noblesse; } else if (jobtype == 3) { newchr.mPrimaryStats.Job = (short)Job.Legend; } else if (jobtype == 4) { newchr.mPrimaryStats.Job = (short)Job.Evan1; } else if (jobtype == 5) { newchr.mPrimaryStats.Job = (short)Job.Mercedes; } else if (jobtype == 6) { newchr.mPrimaryStats.Job = (short)Job.DemonSlayer; } newchr.mMap = 100000000; newchr.mClient = c; newchr.mHair = hair + haircolor; newchr.mFace = face; newchr.mSkin = (byte)skin; newchr.mGender = gender; newchr.mPrimaryStats.Level = 1; newchr.mPrimaryStats.HP = 50; newchr.mPrimaryStats.MaxHP = 50; newchr.mPrimaryStats.MP = 50; newchr.mPrimaryStats.MaxMP = 50; newchr.mPrimaryStats.Str = 4; newchr.mPrimaryStats.Dex = 4; newchr.mPrimaryStats.Int = 4; newchr.mPrimaryStats.Luk = 4; Equip eweapon = new Equip(weapon, "Character creation (JobId " + jobtype + ")"); eweapon.Watk = 17; eweapon.Position = -11; newchr.mInventory[0].Add(eweapon.Position, eweapon); if (shield > 0) { Equip eshield = new Equip(shield, "Character creation (JobId " + jobtype + ")"); eshield.Position = -10; newchr.mInventory[0].Add(eshield.Position, eshield); } Equip etop = new Equip(top, "Character creation (JobId " + jobtype + ")"); etop.Position = -5; newchr.mInventory[0].Add(etop.Position, etop); if (bottom > 0) { Equip ebottom = new Equip(bottom, "Character creation (JobId " + jobtype + ")"); ebottom.Position = -6; newchr.mInventory[0].Add(ebottom.Position, ebottom); } Equip eshoes = new Equip(shoes, "Character creation (JobId " + jobtype + ")"); eshoes.Position = -7; newchr.mInventory[0].Add(eshoes.Position, eshoes); Database.SaveCharacter(newchr, true); c.SendPacket(PacketDefinitions.NewCharacter(newchr)); }
/// <summary> /// Data received event handler /// </summary> /// <param name="iar">IAsyncResult of the data received event</param> private void OnDataReceived(IAsyncResult iar) { SocketInfo socketInfo = (SocketInfo)iar.AsyncState; try { int received = socketInfo.Socket.EndReceive(iar); if (received == 0) { if (OnClientDisconnected != null) { OnClientDisconnected(this); } return; } socketInfo.Index += received; if (socketInfo.Index == socketInfo.DataBuffer.Length) { switch (socketInfo.State) { case SocketInfo.StateEnum.Header: if (socketInfo.NoEncryption) { PacketReader headerReader = new PacketReader(socketInfo.DataBuffer); short packetHeader = headerReader.ReadShort(); socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetHeader]; socketInfo.Index = 0; WaitForData(socketInfo); } else { PacketReader headerReader = new PacketReader(socketInfo.DataBuffer); byte[] packetHeaderB = headerReader.ToArray(); int packetHeader = headerReader.ReadInt(); short packetLength = (short)MapleCrypto.getPacketLength(packetHeader); if (_type == SessionType.SERVER_TO_CLIENT && !_RIV.checkPacketToServer(BitConverter.GetBytes(packetHeader))) { Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Packet check failed. Disconnecting client."); //this.Socket.Close(); } socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetLength]; socketInfo.Index = 0; WaitForData(socketInfo); } break; case SocketInfo.StateEnum.Content: byte[] data = socketInfo.DataBuffer; if (socketInfo.NoEncryption) { socketInfo.NoEncryption = false; PacketReader reader = new PacketReader(data); short version = reader.ReadShort(); string unknown = reader.ReadMapleString(); _SIV = new MapleCrypto(reader.ReadBytes(4), version); _RIV = new MapleCrypto(reader.ReadBytes(4), version); byte serverType = reader.ReadByte(); if (_type == SessionType.CLIENT_TO_SERVER) { OnInitPacketReceived(version, serverType); } OnPacketReceived(new PacketReader(data), true); WaitForData(); } else { _RIV.crypt(data); MapleCustomEncryption.Decrypt(data); if (data.Length != 0 && OnPacketReceived != null) { OnPacketReceived(new PacketReader(data), false); } WaitForData(); } break; } } else { Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Warning] Not enough data"); WaitForData(socketInfo); } } catch (ObjectDisposedException) { Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: Socket has been closed"); } catch (SocketException se) { if (se.ErrorCode != 10054) { Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + se); } } catch (Exception e) { Helpers.ErrorLogger.Log(Helpers.ErrorLevel.Critical, "[Error] Session.OnDataReceived: " + e); } }
internal Results BufferTCPPacket(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; ushort length = (ushort)(BitConverter.ToUInt16(tcpData, 0) + 2); byte[] headerData = new byte[tcpData.Length]; Buffer.BlockCopy(tcpData, 0, headerData, 0, tcpData.Length); bool mIsKMS = false; PacketReader pr = new PacketReader(headerData); if (length != tcpData.Length || tcpData.Length < 13) { if (socks5 > 0 && socks5 < 7) { if (pr.ReadByte() == 5 && pr.ReadByte() == 1) { pr.ReadByte(); mProxyEndpoint = mLocalEndpoint; mLocalEndpoint = ""; switch (pr.ReadByte()) { case 1://IPv4 for (int i = 0; i < 4; i++) { mLocalEndpoint += pr.ReadByte(); if (i < 3) { mLocalEndpoint += "."; } } break; case 3://Domain //readInt - String Length //readAsciiString - Address break; case 4://IPv6 for (int i = 0; i < 16; i++) { pr.ReadByte(); } break; } byte[] ports = new byte[2]; for (int i = 1; i >= 0; i--) { ports[i] = pr.ReadByte(); } PacketReader portr = new PacketReader(ports); mProxyPort = mRemotePort; mRemotePort = portr.ReadUShort(); mLocalEndpoint += ":" + mRemotePort; Text = "Port " + mLocalPort + " - " + mRemotePort + "(Proxy" + mProxyPort + ")"; Console.WriteLine("[socks5] From {0} to {1} (Proxy {2})", mRemoteEndpoint, mLocalEndpoint, mProxyEndpoint); } socks5++; return Results.Continue; } else if (tcpData.Length == 3 && pr.ReadByte() == 5) { socks5 = 1; return Results.Continue; } Console.WriteLine("Connection on port {0} did not have a MapleStory Handshake", mLocalEndpoint); return Results.CloseMe; } pr.ReadUShort(); ushort version = pr.ReadUShort(); byte subVersion = 1; string patchLocation = pr.ReadMapleString(); byte[] localIV = pr.ReadBytes(4); byte[] remoteIV = pr.ReadBytes(4); byte serverLocale = pr.ReadByte(); if (serverLocale > 0x12) { return Results.CloseMe; } if (serverLocale == 0x02 || (serverLocale == 0x01 && version > 255)) mIsKMS = true; else mIsKMS = false; if (mIsKMS) { int test = int.Parse(patchLocation); version = (ushort)(test & 0x7FFF); subVersion = (byte)((test >> 16) & 0xFF); } else if (patchLocation.All(character => { return character >= '0' && character <= '9'; })) { if (!byte.TryParse(patchLocation, out subVersion)) Console.WriteLine("Failed to parse subVersion"); } mBuild = version; mLocale = serverLocale; mPatchLocation = patchLocation; mOutboundStream = new MapleStream(true, mBuild, mLocale, localIV, subVersion); mInboundStream = new MapleStream(false, mBuild, mLocale, remoteIV, subVersion); // Generate HandShake packet Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, false, 0xFFFF); if (definition == null) { definition = new Definition(); definition.Outbound = false; definition.Locale = mLocale; definition.Opcode = 0xFFFF; definition.Name = "Maple Handshake"; definition.Build = mBuild; DefinitionsContainer.Instance.SaveDefinition(definition); } { string filename = "Scripts" + Path.DirectorySeparatorChar + mLocale.ToString() + Path.DirectorySeparatorChar + mBuild.ToString() + Path.DirectorySeparatorChar + "Inbound" + Path.DirectorySeparatorChar + "0xFFFF.txt"; if (!Directory.Exists(Path.GetDirectoryName(filename))) Directory.CreateDirectory(Path.GetDirectoryName(filename)); if (!File.Exists(filename)) { string contents = ""; contents += "using (ScriptAPI) {\r\n"; contents += "\tAddShort(\"Packet Size\");\r\n"; contents += "\tAddUShort(\"MapleStory Version\");\r\n"; contents += "\tAddString(\"MapleStory Patch Location/Subversion\");\r\n"; contents += "\tAddField(\"Local Initializing Vector (IV)\", 4);\r\n"; contents += "\tAddField(\"Remote Initializing Vector (IV)\", 4);\r\n"; contents += "\tAddByte(\"MapleStory Locale\");\r\n"; if (mRemotePort == 8484 && ((mLocale == MapleLocale.GLOBAL && version >= 160) || (mLocale == MapleLocale.TAIWAN && version >= 176) || (mLocale == MapleLocale.CHINA && version >= 122))) contents += "\tAddByte(\"Unknown\");\r\n"; contents += "}"; File.WriteAllText(filename, contents); } } MaplePacket packet = new MaplePacket(pArrivalTime, false, mBuild, mLocale, 0xFFFF, definition == null ? "" : definition.Name, tcpData, (uint)0, BitConverter.ToUInt32(remoteIV, 0)); if (!mOpcodes.Exists(kv => kv.First == packet.Outbound && kv.Second == packet.Opcode)) // Should be false, but w/e { mOpcodes.Add(new Pair<bool, ushort>(packet.Outbound, packet.Opcode)); } mPacketList.Items.Add(packet); mPackets.Add(packet); MainForm.SearchForm.RefreshOpcodes(true); Console.WriteLine("[CONNECTION] MapleStory V{2}.{3} Locale {4}", mLocalEndpoint, mRemoteEndpoint, mBuild, subVersion, serverLocale); } if (pTCPPacket.SourcePort == mLocalPort) ProcessTCPPacket(pTCPPacket, ref mOutboundSequence, mOutboundBuffer, mOutboundStream, pArrivalTime); else ProcessTCPPacket(pTCPPacket, ref mInboundSequence, mInboundBuffer, mInboundStream, pArrivalTime); return Results.Continue; }
public void handlePacket(Client c, PacketReader packet) { packet.ReadByte(); // unknown, client sends 0x02 c.Characters = Database.GetCharacters(c.AccountId); c.SendPacket(PacketDefinitions.ViewAllCharacters(c.Characters)); }
public void handlePacket(Client c, PacketReader packet) { packet.ReadByte(); int portalId = packet.ReadInt(); int timestamp = packet.ReadInt(); }
public Results BufferTCPPacket(TcpPacket pTCPPacket, DateTime pArrivalTime) { if (pTCPPacket.Fin || pTCPPacket.Rst) { _terminated = true; Text += " (Terminated)"; return _packets.Count == 0 ? Results.CloseMe : Results.Terminated; } if (pTCPPacket.Syn && !pTCPPacket.Ack) { _localPort = (ushort)pTCPPacket.SourcePort; _remotePort = (ushort)pTCPPacket.DestinationPort; _outboundSequence = (uint)(pTCPPacket.SequenceNumber + 1); Text = "Port " + _localPort + " - " + _remotePort; startTime = DateTime.Now; try { _remoteEndpoint = ((PacketDotNet.IPv4Packet)pTCPPacket.ParentPacket).SourceAddress.ToString() + ":" + pTCPPacket.SourcePort.ToString(); _localEndpoint = ((PacketDotNet.IPv4Packet)pTCPPacket.ParentPacket).DestinationAddress.ToString() + ":" + pTCPPacket.DestinationPort.ToString(); Console.WriteLine("[CONNECTION] From {0} to {1}", _remoteEndpoint, _localEndpoint); return Results.Continue; } catch { return Results.CloseMe; } } if (pTCPPacket.Syn && pTCPPacket.Ack) { _inboundSequence = (uint)(pTCPPacket.SequenceNumber + 1); return Results.Continue; } if (pTCPPacket.PayloadData.Length == 0) return Results.Continue; if (_protocol == null) { byte[] tcpData = pTCPPacket.PayloadData; if (pTCPPacket.SourcePort == _localPort) _outboundSequence += (uint)tcpData.Length; else _inboundSequence += (uint)tcpData.Length; ushort length = (ushort)(BitConverter.ToUInt16(tcpData, 0) + 2); byte[] headerData = new byte[tcpData.Length]; Buffer.BlockCopy(tcpData, 0, headerData, 0, tcpData.Length); PacketReader pr = new PacketReader(headerData); if (length != tcpData.Length || tcpData.Length < 13) { if (_socks5 > 0 && _socks5 < 7) { if (pr.ReadByte() == 5 && pr.ReadByte() == 1) { pr.ReadByte(); _proxyEndpoint = _localEndpoint; _localEndpoint = ""; switch (pr.ReadByte()) { case 1://IPv4 for (int i = 0; i < 4; i++) { _localEndpoint += pr.ReadByte(); if (i < 3) { _localEndpoint += "."; } } break; case 3://Domain //readInt - String Length //readAsciiString - Address break; case 4://IPv6 for (int i = 0; i < 16; i++) { pr.ReadByte(); } break; } byte[] ports = new byte[2]; for (int i = 1; i >= 0; i--) { ports[i] = pr.ReadByte(); } PacketReader portr = new PacketReader(ports); _proxyPort = _remotePort; _remotePort = portr.ReadUShort(); _localEndpoint += ":" + _remotePort; Text = "Port " + _localPort + " - " + _remotePort + "(Proxy" + _proxyPort + ")"; Console.WriteLine("[socks5] From {0} to {1} (Proxy {2})", _remoteEndpoint, _localEndpoint, _proxyEndpoint); } _socks5++; return Results.Continue; } else if (tcpData.Length == 3 && pr.ReadByte() == 5) { _socks5 = 1; return Results.Continue; } Console.WriteLine("Connection on port {0} did not have a MapleStory Handshake", _localEndpoint); return Results.CloseMe; } var kvp = MapleProtocol.ParseHandshake(pr.ToArray(), pArrivalTime); if (!kvp.HasValue) { return Results.CloseMe; } _protocol = kvp.Value.Key; var hs = kvp.Value.Value; mPacketList.Items.Add(hs.GetListViewItem()); _packets.Add(hs); ListView.Columns.Clear(); ListView.Columns.AddRange(_protocol.GetListViewHeaders()); MainForm.SearchForm.RefreshOpcodes(true); } if (pTCPPacket.SourcePort == _localPort) ProcessTCPPacket(pTCPPacket, ref _outboundSequence, _outboundBuffer, _protocol.OutboundStream, pArrivalTime); else ProcessTCPPacket(pTCPPacket, ref _inboundSequence, _inboundBuffer, _protocol.InboundStream, pArrivalTime); return Results.Continue; }
internal Results BufferTCPPacket(TcpPacket pTCPPacket, DateTime pArrivalTime) { if (pTCPPacket.Fin || pTCPPacket.Rst) { mTerminated = true; Text += " (Terminated)"; if (mPackets.Count == 0) { // f**k return Results.CloseMe; } else { return Results.Terminated; } } if (pTCPPacket.Syn && !pTCPPacket.Ack) { mLocalPort = (ushort)pTCPPacket.SourcePort; mRemotePort = (ushort)pTCPPacket.DestinationPort; mOutboundSequence = (uint)(pTCPPacket.SequenceNumber + 1); Text = "Port " + mLocalPort.ToString(); startTime = DateTime.Now; 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}", mLocalEndpoint, mRemoteEndpoint); return Results.Continue; } if (pTCPPacket.Syn && pTCPPacket.Ack) { mInboundSequence = (uint)(pTCPPacket.SequenceNumber + 1); return Results.Continue; } if (pTCPPacket.PayloadData.Length == 0) return Results.Continue; if (mBuild == 0) { if (pTCPPacket.PayloadData.Length < 13) return Results.CloseMe; byte[] tcpData = pTCPPacket.PayloadData; //mBuild = (ushort)(tcpData[2] | (tcpData[3] << 8)); bool mIsKMS = false; PacketReader pr = new PacketReader(tcpData); pr.ReadShort(); ushort version = pr.ReadUShort(); var pos = pr.Position; { var shrt = pr.ReadShort(); if (shrt < 0 || shrt > 0x0020) { return Results.CloseMe; } } pr.Reset(pos); string patchLocation = pr.ReadMapleString(); byte[] localIV = pr.ReadBytes(4); byte[] remoteIV = pr.ReadBytes(4); byte serverLocale = pr.ReadByte(); if (pr.Remaining > 0 || serverLocale > 0x12) { return Results.CloseMe; } if (serverLocale == 0x02 || (serverLocale == 0x01 && version > 255)) mIsKMS = true; else mIsKMS = false; if (mIsKMS) { int test = int.Parse(patchLocation); ushort t1 = (ushort)(test & 0x7FFF); int t2 = (test >> 15) & 1; int t3 = (test >> 16) & 0xFF; Console.WriteLine("Logging KMS connection. Version {0} | {1} | {2}", t1, t2, t3); mBuild = t1; } else { mBuild = version; } mLocale = serverLocale; mPatchLocation = patchLocation; mOutboundStream = new MapleStream(true, mBuild, mLocale, localIV); mInboundStream = new MapleStream(false, (ushort)(0xFFFF - mBuild), mLocale, remoteIV); mInboundSequence += (uint)tcpData.Length; // Generate HandShake packet Definition definition = Config.Instance.GetDefinition(mBuild, mLocale, false, 0xFFFF); if (definition == null) { definition = new Definition(); definition.Outbound = false; definition.Locale = mLocale; definition.Opcode = 0xFFFF; definition.Name = "Maple Handshake"; definition.Build = mBuild; Config.Instance.Definitions.Add(definition); } { string filename = "Scripts" + Path.DirectorySeparatorChar + mLocale.ToString() + Path.DirectorySeparatorChar + mBuild.ToString() + Path.DirectorySeparatorChar + "Inbound" + Path.DirectorySeparatorChar + "0xFFFF.txt"; if (!Directory.Exists(Path.GetDirectoryName(filename))) Directory.CreateDirectory(Path.GetDirectoryName(filename)); if (!File.Exists(filename)) { string contents = ""; contents += "using (ScriptAPI) {\r\n"; contents += "\tAddShort(\"Packet Size\");\r\n"; contents += "\tAddUShort(\"MapleStory Version\");\r\n"; contents += "\tAddString(\"MapleStory Patch Location\");\r\n"; contents += "\tAddField(\"Local Initializing Vector (IV)\", 4);\r\n"; contents += "\tAddField(\"Remote Initializing Vector (IV)\", 4);\r\n"; contents += "\tAddByte(\"MapleStory Locale\");\r\n"; contents += "}"; File.WriteAllText(filename, contents); } } MaplePacket packet = new MaplePacket(pArrivalTime, false, mBuild, mLocale, 0xFFFF, definition == null ? "" : definition.Name, tcpData); if (!mOpcodes.Exists(kv => kv.First == packet.Outbound && kv.Second == packet.Opcode)) { // Should be false, but w/e mOpcodes.Add(new Pair<bool, ushort>(packet.Outbound, packet.Opcode)); } mPacketList.Items.Add(packet); mPackets.Add(packet); MainForm.SearchForm.RefreshOpcodes(true); Console.WriteLine("[CONNECTION] MapleStory V{2}.{3} Locale {4}", mLocalEndpoint, mRemoteEndpoint, mBuild, patchLocation, serverLocale); } if (pTCPPacket.SourcePort == mLocalPort) ProcessTCPPacket(pTCPPacket, ref mOutboundSequence, mOutboundBuffer, mOutboundStream, pArrivalTime); else ProcessTCPPacket(pTCPPacket, ref mInboundSequence, mInboundBuffer, mInboundStream, pArrivalTime); return Results.Continue; }
/// <summary> /// Data received event handler /// </summary> /// <param name="pIAR">IAsyncResult of the data received event</param> private void OnDataReceived(IAsyncResult pIAR) { SocketInfo socketInfo = (SocketInfo)pIAR.AsyncState; try { int received = socketInfo.Socket.EndReceive(pIAR); if (received == 0) { if (OnClientDisconnected != null) { OnClientDisconnected(this); } return; } socketInfo.Index += received; if (socketInfo.Index == socketInfo.DataBuffer.Length) { switch (socketInfo.State) { case SocketInfo.StateEnum.Header: if (socketInfo.NoEncryption) { PacketReader headerReader = new PacketReader(socketInfo.DataBuffer); short packetHeader = headerReader.ReadShort(); socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetHeader]; socketInfo.Index = 0; WaitForData(socketInfo); } else { PacketReader headerReader = new PacketReader(socketInfo.DataBuffer); byte[] packetHeaderB = headerReader.ToArray(); int packetHeader = headerReader.ReadInt(); short packetLength = (short)MapleCrypto.getPacketLength(packetHeader); if (mType == SessionType.SERVER_TO_CLIENT && !mRIV.checkPacketToServer(BitConverter.GetBytes(packetHeader))) { Console.WriteLine("[Error] Packet check failed. Disconnecting client."); //this.Socket.Close(); } socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetLength]; socketInfo.Index = 0; WaitForData(socketInfo); } break; case SocketInfo.StateEnum.Content: byte[] data = socketInfo.DataBuffer; if (socketInfo.NoEncryption) { socketInfo.NoEncryption = false; PacketReader reader = new PacketReader(data); short version = reader.ReadShort(); string unknown = reader.ReadMapleString(); mSIV = new MapleCrypto(reader.ReadBytes(4), version); mRIV = new MapleCrypto(reader.ReadBytes(4), version); byte serverType = reader.ReadByte(); if (mType == SessionType.CLIENT_TO_SERVER) { OnInitPacketReceived(version, serverType); } OnPacketReceived(new PacketReader(data), true); WaitForData(); } else { mRIV.crypt(data); MapleCustomEncryption.Decrypt(data); if (data.Length != 0 && OnPacketReceived != null) { OnPacketReceived(new PacketReader(data), false); } WaitForData(); } break; } } else { Console.WriteLine("[Warning] Not enough data"); WaitForData(socketInfo); } } catch (ObjectDisposedException) { Console.WriteLine("[Error] Session.OnDataReceived: Socket has been closed"); } catch (SocketException se) { if (se.ErrorCode != 10054) { Console.WriteLine("[Error] Session.OnDataReceived: " + se); } } catch (Exception e) { Console.WriteLine("[Error] Session.OnDataReceived: " + e); } }