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)
{
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);
}
}
/// <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;
}
