public override void HandleData(ByteBuffer buff) { Log.outDebug(LogFilter.Warden, "Handle data"); _dataSent = false; _clientResponseTimer = 0; ushort Length = buff.ReadUInt16(); uint Checksum = buff.ReadUInt32(); if (!IsValidCheckSum(Checksum, buff.GetData(), Length)) { Log.outWarn(LogFilter.Warden, "{0} failed checksum. Action: {1}", _session.GetPlayerInfo(), Penalty()); return; } // TIMING_CHECK { byte result = buff.ReadUInt8(); // @todo test it. if (result == 0x00) { Log.outWarn(LogFilter.Warden, "{0} failed timing check. Action: {1}", _session.GetPlayerInfo(), Penalty()); return; } uint newClientTicks = buff.ReadUInt32(); uint ticksNow = GameTime.GetGameTimeMS(); uint ourTicks = newClientTicks + (ticksNow - _serverTicks); Log.outDebug(LogFilter.Warden, "ServerTicks {0}", ticksNow); // Now Log.outDebug(LogFilter.Warden, "RequestTicks {0}", _serverTicks); // At request Log.outDebug(LogFilter.Warden, "Ticks {0}", newClientTicks); // At response Log.outDebug(LogFilter.Warden, "Ticks diff {0}", ourTicks - newClientTicks); } BigInteger rs; WardenCheck rd; WardenCheckType type; ushort checkFailed = 0; foreach (var id in _currentChecks) { rd = Global.WardenCheckMgr.GetWardenDataById(id); rs = Global.WardenCheckMgr.GetWardenResultById(id); type = rd.Type; switch (type) { case WardenCheckType.Memory: { byte Mem_Result = buff.ReadUInt8(); if (Mem_Result != 0) { Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK not 0x00, CheckId {0} account Id {1}", id, _session.GetAccountId()); checkFailed = id; continue; } if (buff.ReadBytes(rd.Length).Compare(rs.ToByteArray())) { Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK fail CheckId {0} account Id {1}", id, _session.GetAccountId()); checkFailed = id; continue; } Log.outDebug(LogFilter.Warden, "RESULT MEM_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId()); break; } case WardenCheckType.PageA: case WardenCheckType.PageB: case WardenCheckType.Driver: case WardenCheckType.Module: { byte value = 0xE9; if (buff.ReadUInt8() != value) { if (type == WardenCheckType.PageA || type == WardenCheckType.PageB) { Log.outDebug(LogFilter.Warden, "RESULT PAGE_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId()); } if (type == WardenCheckType.Module) { Log.outDebug(LogFilter.Warden, "RESULT MODULE_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId()); } if (type == WardenCheckType.Driver) { Log.outDebug(LogFilter.Warden, "RESULT DRIVER_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId()); } checkFailed = id; continue; } if (type == WardenCheckType.PageA || type == WardenCheckType.PageB) { Log.outDebug(LogFilter.Warden, "RESULT PAGE_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId()); } else if (type == WardenCheckType.Module) { Log.outDebug(LogFilter.Warden, "RESULT MODULE_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId()); } else if (type == WardenCheckType.Driver) { Log.outDebug(LogFilter.Warden, "RESULT DRIVER_CHECK passed CheckId {0} account Id {1}", id, _session.GetAccountId()); } break; } case WardenCheckType.LuaStr: { byte Lua_Result = buff.ReadUInt8(); if (Lua_Result != 0) { Log.outDebug(LogFilter.Warden, "RESULT LUA_STR_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId()); checkFailed = id; continue; } byte luaStrLen = buff.ReadUInt8(); if (luaStrLen != 0) { Log.outDebug(LogFilter.Warden, "Lua string: {0}", buff.ReadString(luaStrLen)); } Log.outDebug(LogFilter.Warden, "RESULT LUA_STR_CHECK passed, CheckId {0} account Id {1}", id, _session.GetAccountId()); break; } case WardenCheckType.MPQ: { byte Mpq_Result = buff.ReadUInt8(); if (Mpq_Result != 0) { Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK not 0x00 account id {0}", _session.GetAccountId()); checkFailed = id; continue; } if (!buff.ReadBytes(20).Compare(rs.ToByteArray())) // SHA1 { Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK fail, CheckId {0} account Id {1}", id, _session.GetAccountId()); checkFailed = id; continue; } Log.outDebug(LogFilter.Warden, "RESULT MPQ_CHECK passed, CheckId {0} account Id {1}", id, _session.GetAccountId()); break; } default: // Should never happen break; } } if (checkFailed > 0) { WardenCheck check = Global.WardenCheckMgr.GetWardenDataById(checkFailed); Log.outWarn(LogFilter.Warden, "{0} failed Warden check {1}. Action: {2}", _session.GetPlayerInfo(), checkFailed, Penalty(check)); } // Set hold off timer, minimum timer should at least be 1 second uint holdOff = WorldConfig.GetUIntValue(WorldCfg.WardenClientCheckHoldoff); _checkTimer = (holdOff < 1 ? 1 : holdOff) * Time.InMilliseconds; }
public override void RequestData() { Log.outDebug(LogFilter.Warden, "Request data"); // If all checks were done, fill the todo list again if (_memChecksTodo.Empty()) { _memChecksTodo.AddRange(Global.WardenCheckMgr.MemChecksIdPool); } if (_otherChecksTodo.Empty()) { _otherChecksTodo.AddRange(Global.WardenCheckMgr.OtherChecksIdPool); } _serverTicks = GameTime.GetGameTimeMS(); ushort id; WardenCheckType type; WardenCheck wd; _currentChecks.Clear(); // Build check request for (uint i = 0; i < WorldConfig.GetUIntValue(WorldCfg.WardenNumMemChecks); ++i) { // If todo list is done break loop (will be filled on next Update() run) if (_memChecksTodo.Empty()) { break; } // Get check id from the end and remove it from todo id = _memChecksTodo.Last(); _memChecksTodo.Remove(id); // Add the id to the list sent in this cycle _currentChecks.Add(id); } ByteBuffer buffer = new ByteBuffer(); buffer.WriteUInt8((byte)WardenOpcodes.Smsg_CheatChecksRequest); for (uint i = 0; i < WorldConfig.GetUIntValue(WorldCfg.WardenNumOtherChecks); ++i) { // If todo list is done break loop (will be filled on next Update() run) if (_otherChecksTodo.Empty()) { break; } // Get check id from the end and remove it from todo id = _otherChecksTodo.Last(); _otherChecksTodo.Remove(id); // Add the id to the list sent in this cycle _currentChecks.Add(id); wd = Global.WardenCheckMgr.GetWardenDataById(id); switch (wd.Type) { case WardenCheckType.MPQ: case WardenCheckType.LuaStr: case WardenCheckType.Driver: buffer.WriteUInt8((byte)wd.Str.GetByteCount()); buffer.WriteString(wd.Str); break; default: break; } } byte xorByte = _inputKey[0]; // Add TIMING_CHECK buffer.WriteUInt8(0x00); buffer.WriteUInt8((byte)((int)WardenCheckType.Timing ^ xorByte)); byte index = 1; foreach (var checkId in _currentChecks) { wd = Global.WardenCheckMgr.GetWardenDataById(checkId); type = wd.Type; buffer.WriteUInt8((byte)((int)type ^ xorByte)); switch (type) { case WardenCheckType.Memory: { buffer.WriteUInt8(0x00); buffer.WriteUInt32(wd.Address); buffer.WriteUInt8(wd.Length); break; } case WardenCheckType.PageA: case WardenCheckType.PageB: { buffer.WriteBytes(wd.Data.ToByteArray()); buffer.WriteUInt32(wd.Address); buffer.WriteUInt8(wd.Length); break; } case WardenCheckType.MPQ: case WardenCheckType.LuaStr: { buffer.WriteUInt8(index++); break; } case WardenCheckType.Driver: { buffer.WriteBytes(wd.Data.ToByteArray()); buffer.WriteUInt8(index++); break; } case WardenCheckType.Module: { uint seed = RandomHelper.Rand32(); buffer.WriteUInt32(seed); HmacHash hmac = new HmacHash(BitConverter.GetBytes(seed)); hmac.Finish(wd.Str); buffer.WriteBytes(hmac.Digest); break; } /*case PROC_CHECK: * { * buff.append(wd.i.AsByteArray(0, false).get(), wd.i.GetNumBytes()); * buff << uint8(index++); * buff << uint8(index++); * buff << uint32(wd.Address); * buff << uint8(wd.Length); * break; * }*/ default: break; // Should never happen } } buffer.WriteUInt8(xorByte); WardenDataServer packet = new WardenDataServer(); packet.Data = EncryptData(buffer.GetData()); _session.SendPacket(packet); _dataSent = true; string stream = "Sent check id's: "; foreach (var checkId in _currentChecks) { stream += checkId + " "; } Log.outDebug(LogFilter.Warden, stream); }