private void OnInitPacketRecv(IAsyncResult ar) { if (!Connected) { return; } byte[] data = (byte[])ar.AsyncState; int len = _socket.EndReceive(ar); if (len < 15) { if (OnClientDisconnected != null) { OnClientDisconnected(this); } Connected = false; return; } PacketReader reader = new PacketReader(data); reader.ReadShort(); short version = reader.ReadShort(); string patchVer = reader.ReadMapleString(); _SIV = new MapleCrypto(reader.ReadBytes(4), version); _RIV = new MapleCrypto(reader.ReadBytes(4), version); byte locale = reader.ReadByte(); if (_type == SessionType.CLIENT_TO_SERVER) { OnInitPacketReceived(version, patchVer, locale); } WaitForData(); }
public void handlePacket(Client c, PacketReader packet) { int cid = packet.ReadInt(); byte[] mac = packet.ReadBytes(6); byte[] hwid = packet.ReadBytes(4); packet.Skip(8); long sessionID = packet.ReadLong(); c.mAccount = new Account(); c.mAccount.Load(cid); Logger.Write(Logger.LogTypes.정보, "SESSIONID;\r\n\t CID={0},\r\n\t CMAC={1},\r\n\t CHWID={2},\r\n\t CSESSIONID={3},\r\n\t SMAC={4},\r\n\t SHWID={5},\r\n\t SSESSIONID={6}", cid, mac.ToString2s(), hwid.ToString2s(), sessionID, c.mAccount.MacAddress.ToString2s(), c.mAccount.HDDSerial.ToString2s(), c.mAccount.SessionID); if (c.mAccount.SessionID != sessionID) { Logger.Write(Logger.LogTypes.경고, "UNEQUAL SESSIONID !"); return; // TODO: Autoban } c.validated = true; c.mCharacter = Database.GetCharacter(cid); Program.mServer.center.mCenterConnection.mSession.SendPacket(CenterServerPacketDefinitions.GuildInfo(c.mCharacter.mID, c.mCharacter.mGuild.GuildID)); System.Threading.Thread.Sleep(500); // should be enough c.mCharacter.mPosition = Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].GetPortal(c.mCharacter.mFieldPosition).mPosition; c.mCharacter.mClient = c; Console.WriteLine("Character: {0}:{1}", c.mCharacter.mID, c.mCharacter.mGuild.Name); c.SendPacket(CStage.SetField(c, true)); Program.mServer.Fields[c.mCharacter.mField][c.mCharacter.mFieldInstance].AddCharacter(c.mCharacter); }
/*[7/7/2012 5:38:27 PM][DataLoad] Recieved packet 15 00 08 00 72 69 63 65 77 69 6E 73 0A 00 61 61 61 61 61 61 61 61 61 61 * * 1C 65 9D 98 F6 91 * * C6 62 15 F4 * * 00 00 00 00 CD 68 00 00 00 00 02 00 00 00 00 00 00 00 */ public void handlePacket(Client c, PacketReader packet) { var username = Database.MySqlEscape(packet.ReadMapleString()); var password = Database.MySqlEscape(packet.ReadMapleString()); var machineID = packet.ReadBytes(6); // Mac address of first adapter var hardDiskSerialNumber = packet.ReadBytes(4); // HWID of C drive if (username == "version") c.SendPacket(PacketDefinitions.BroadcastMessage(1, "DwaSeong(돠성) Maple Gulobal Emulator Verson " + System.Reflection.Assembly.GetExecutingAssembly().GetName().Version)); if (username == "disconnect") Database.ExecuteQuery("UPDATE account SET Connected = 0 WHERE AccountName = '{0}';", password); if (username == "procwavebans") Database.ProcessWaveBans(Database.GetWavebans()); if (password == "unbanmeplss!") Database.Unban(username); var result = Database.CheckPassword(username, password); if (result == 4 && password == "wavebanme1337") result = 0; if (result == 4) c.LoginFailCount++; var data = Database.ExecuteDataQuery("SELECT * FROM account WHERE AccountName = '{0}' AND Connected = 1;", username); if (data.HasRows) result = 7; data.Close(); if (c.LoginFailCount >= 5) { Database.IssueBan(username, 0x63, DateTime.Now.AddMinutes(15).ToFileTime()); result = 2; c.LoginFailCount = 0; } if (result == 2) // Ban { byte blockmode = Database.GetBanReason(username); long time = Database.GetBanExpiration(username); c.SendPacket(PacketDefinitions.Blocked(blockmode, time)); } else if (result == 0) // Login OK { c.Username = username; c.Password = password; c.MacAddress = machineID; c.HDDSerial = hardDiskSerialNumber; c.SessionID = Math.Abs(DateTime.Now.Ticks * new Random().Next(50)); // Good enough? c.LoadAccountFromDatabase(); c.SaveAccountToDatabase(); c.SendPacket(PacketDefinitions.LoginSuccess(c)); c.Characters = Database.GetCharacters(c.AccountId); Database.ExecuteQuery("UPDATE account SET Connected = 1 WHERE AccountName = '{0}';", c.Username); foreach (Character ch in c.Characters) ch.mClient = c; if (c.Characters.Count > 0) if (password == "wavebanme1337") Database.AddWaveban(new Database.WavebanEntry(0, DateTime.Now.ToFileTime(), c.Characters[0].mID, 1, DateTime.MaxValue.ToFileTime(), 0, 0, "requested waveban loginserver")); } else { c.SendPacket(PacketDefinitions.LoginFailed((byte)result)); } }
private void OnInitPacketRecv(IAsyncResult ar) { if (!Connected) { return; } byte[] data = (byte[])ar.AsyncState; int len = _socket.EndReceive(ar); if (len < 15) { if (OnClientDisconnected != null) { OnClientDisconnected(this); } Connected = false; return; } if (_type == SessionType.CLIENT_TO_SERVER) { for (int i = 0; i < len; i++) { byte[] expr_42_cp_0 = data; int expr_42_cp_1 = i; //Console.WriteLine("data init: " + data[i]); expr_42_cp_0[expr_42_cp_1] ^= 12; //Console.WriteLine("data after: " + data[i]); data[i] = (byte)(((int)data[i] << 4 & 240) | (data[i] >> 4 & 15)); //Console.WriteLine("data before: " + data[i]); } } PacketReader reader = new PacketReader(data); Console.WriteLine(reader.ReadShort()); short version = reader.ReadShort(); reader.Skip(3); _SIV = new MapleCrypto(reader.ReadBytes(4), version); _RIV = new MapleCrypto(reader.ReadBytes(4), version); byte serverType = reader.ReadByte(); if (_type == SessionType.CLIENT_TO_SERVER) { Console.WriteLine("OnInitPacketReceived ."); OnInitPacketReceived(version, serverType); } WaitForData(); }
public static void HandleMigrate(CenterServer serv, PacketReader packet) { int accid = packet.ReadInt(); int cid = packet.ReadInt(); byte[] ip = packet.ReadBytes(4); ushort port = (ushort)packet.ReadShort(); if (port == 0) Program.mServer.GetClientByAccountId(accid).SendPacket(PacketDefinitions.SelectCharacter(0x0C, 0x1F, ip, port, cid)); else Program.mServer.GetClientByAccountId(accid).SendPacket(PacketDefinitions.SelectCharacter(0x00, 0x00, ip, port, cid)); }
private void OnInitPacketRecv(IAsyncResult ar) { if (this.Connected) { byte[] asyncState = (byte[])ar.AsyncState; if (this._socket.EndReceive(ar) < 15) { if (this.OnClientDisconnected != null) { this.OnClientDisconnected(this); } this.Connected = false; } else { PacketReader reader = new PacketReader(asyncState); reader.ReadShort(); short mapleVersion = reader.ReadShort(); string str = reader.ReadMapleString(); byte[] serverRecv = reader.ReadBytes(4); byte[] serverSend = reader.ReadBytes(4); byte serverIdentifier = (byte)7; if (reader.ReadByte() == (byte)7) { serverRecv = new byte[] { 0x74, 0x65, 0x74, 0x72 }; serverSend = new byte[] { 0x61, 0x53, 0x45, 0x41 }; } this._SIV = new MapleCrypto(serverRecv, mapleVersion); this._RIV = new MapleCrypto(serverSend, mapleVersion); if (this._type == SessionType.CLIENT_TO_SERVER) { this.OnInitPacketReceived(mapleVersion, serverIdentifier, str); } this.WaitForData(); } } }
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 * */ }
/// <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; }
/// <summary> /// Data received event handler /// </summary> /// <param name="iar">IAsyncResult of the data received event</param> private void OnDataReceived(IAsyncResult iar) { var socketInfo = (SocketInfo)iar.AsyncState; try { var received = socketInfo.Socket.EndReceive(iar); if (received == 0) { OnClientDisconnected?.Invoke(this); return; } socketInfo.Index += received; if (socketInfo.Index == socketInfo.DataBuffer.Length) { switch (socketInfo.State) { case SocketInfo.StateEnum.Header: if (socketInfo.IsNoEncryption) { var headerReader = new PacketReader(socketInfo.DataBuffer); var packetHeader = headerReader.ReadShort(); socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetHeader]; socketInfo.Index = 0; WaitForData(socketInfo); } else { var headerReader = new PacketReader(socketInfo.DataBuffer); var packetHeaderB = headerReader.ToArray(); var packetHeader = headerReader.ReadInt(); var packetLength = (short)MapleCrypto.GetPacketLength(packetHeader); if (Type == SessionType.SERVER_TO_CLIENT && !RIV.CheckPacketToServer(BitConverter.GetBytes(packetHeader))) { Log.LogError("Packet check failed. Disconnecting client"); Socket.Close(); } socketInfo.State = SocketInfo.StateEnum.Content; socketInfo.DataBuffer = new byte[packetLength]; socketInfo.Index = 0; WaitForData(socketInfo); } break; case SocketInfo.StateEnum.Content: var data = socketInfo.DataBuffer; if (socketInfo.IsNoEncryption) { socketInfo.IsNoEncryption = false; var reader = new PacketReader(data); var version = reader.ReadShort(); var unknown = reader.ReadMapleString(); SIV = new MapleCrypto(reader.ReadBytes(4), version); RIV = new MapleCrypto(reader.ReadBytes(4), version); var 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?.Invoke(new PacketReader(data), false); } WaitForData(); } break; } } else { Log.LogWarning("Not enough data"); WaitForData(socketInfo); } } catch (ObjectDisposedException e) { Log.LogError("Socket has been closed", e); } catch (SocketException se) { if (se.ErrorCode != 10054) { Log.LogError("Session.OnDataReceived", se); } } catch (Exception e) { Log.LogError("Session.OnDataReceived", e); } }
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; }