Nefertumm
136 lines
4.6 KiB
C++
136 lines
4.6 KiB
C++
/*
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* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
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* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*/
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#ifndef _WARDEN_BASE_H
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#define _WARDEN_BASE_H
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#include <map>
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#include "Cryptography/ARC4.h"
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#include "Cryptography/BigNumber.h"
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#include "ByteBuffer.h"
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#include "WardenCheckMgr.h"
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enum WardenOpcodes
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{
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// Client->Server
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WARDEN_CMSG_MODULE_MISSING = 0,
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WARDEN_CMSG_MODULE_OK = 1,
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WARDEN_CMSG_CHEAT_CHECKS_RESULT = 2,
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WARDEN_CMSG_MEM_CHECKS_RESULT = 3, // only sent if MEM_CHECK bytes doesn't match
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WARDEN_CMSG_HASH_RESULT = 4,
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WARDEN_CMSG_MODULE_FAILED = 5, // this is sent when client failed to load uploaded module due to cache fail
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// Server->Client
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WARDEN_SMSG_MODULE_USE = 0,
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WARDEN_SMSG_MODULE_CACHE = 1,
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WARDEN_SMSG_CHEAT_CHECKS_REQUEST = 2,
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WARDEN_SMSG_MODULE_INITIALIZE = 3,
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WARDEN_SMSG_MEM_CHECKS_REQUEST = 4, // byte len; while(!EOF) { byte unk(1); byte index(++); string module(can be 0); int offset; byte len; byte[] bytes_to_compare[len]; }
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WARDEN_SMSG_HASH_REQUEST = 5
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};
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enum WardenCheckType
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{
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MEM_CHECK = 0xF3, // 243: byte moduleNameIndex + uint Offset + byte Len (check to ensure memory isn't modified)
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PAGE_CHECK_A = 0xB2, // 178: uint Seed + byte[20] SHA1 + uint Addr + byte Len (scans all pages for specified hash)
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PAGE_CHECK_B = 0xBF, // 191: uint Seed + byte[20] SHA1 + uint Addr + byte Len (scans only pages starts with MZ+PE headers for specified hash)
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MPQ_CHECK = 0x98, // 152: byte fileNameIndex (check to ensure MPQ file isn't modified)
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LUA_STR_CHECK = 0x8B, // 139: byte luaNameIndex (check to ensure LUA string isn't used)
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DRIVER_CHECK = 0x71, // 113: uint Seed + byte[20] SHA1 + byte driverNameIndex (check to ensure driver isn't loaded)
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TIMING_CHECK = 0x57, // 87: empty (check to ensure GetTickCount() isn't detoured)
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PROC_CHECK = 0x7E, // 126: uint Seed + byte[20] SHA1 + byte moluleNameIndex + byte procNameIndex + uint Offset + byte Len (check to ensure proc isn't detoured)
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MODULE_CHECK = 0xD9, // 217: uint Seed + byte[20] SHA1 (check to ensure module isn't injected)
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};
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#if defined(__GNUC__)
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#pragma pack(1)
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#else
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#pragma pack(push,1)
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#endif
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struct WardenModuleUse
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{
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uint8 Command;
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uint8 ModuleId[16];
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uint8 ModuleKey[16];
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uint32 Size;
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};
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struct WardenModuleTransfer
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{
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uint8 Command;
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uint16 DataSize;
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uint8 Data[500];
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};
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struct WardenHashRequest
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{
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uint8 Command;
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uint8 Seed[16];
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};
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#if defined(__GNUC__)
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#pragma pack()
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#else
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#pragma pack(pop)
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#endif
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struct ClientWardenModule
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{
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uint8 Id[16];
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uint8 Key[16];
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uint32 CompressedSize;
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uint8* CompressedData;
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};
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class WorldSession;
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class Warden
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{
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friend class WardenWin;
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friend class WardenMac;
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public:
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Warden();
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virtual ~Warden();
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virtual void Init(WorldSession* session, BigNumber* k) = 0;
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virtual ClientWardenModule* GetModuleForClient() = 0;
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virtual void InitializeModule() = 0;
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virtual void RequestHash() = 0;
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virtual void HandleHashResult(ByteBuffer &buff) = 0;
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virtual void RequestData() = 0;
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virtual void HandleData(ByteBuffer &buff) = 0;
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void SendModuleToClient();
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void RequestModule();
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void Update();
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void DecryptData(uint8* buffer, uint32 length);
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void EncryptData(uint8* buffer, uint32 length);
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static bool IsValidCheckSum(uint32 checksum, const uint8 *data, const uint16 length);
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static uint32 BuildChecksum(const uint8 *data, uint32 length);
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// If no check is passed, the default action from config is executed
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std::string Penalty(WardenCheck* check = NULL, uint16 checkFailed = 0);
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private:
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WorldSession* _session;
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uint8 _inputKey[16];
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uint8 _outputKey[16];
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uint8 _seed[16];
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ARC4 _inputCrypto;
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ARC4 _outputCrypto;
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uint32 _checkTimer; // Timer for sending check requests
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uint32 _clientResponseTimer; // Timer for client response delay
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bool _dataSent;
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uint32 _previousTimestamp;
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ClientWardenModule* _module;
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bool _initialized;
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};
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#endif
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