Protection System For Counter-Strike 1.6
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9.6 KiB

#include "offset.h"
cOffset offset;
void cOffset::GetRenderType()
{
HwDll = (DWORD)GetModuleHandleA(HW_DLL);
SwDll = (DWORD)GetModuleHandleA(SW_DLL);
HlMod = (DWORD)GetModuleHandleA(NULL);
}
bool cOffset::GetModuleInfo()
{
GetRenderType();
if (HwDll)
HwBase = HwDll;
else if (SwDll)
HwBase = SwDll;
else
HwBase = HlMod;
HwSize = GetModuleSize(HwBase);
HwEnd = HwBase + HwSize - 1;
HlBase = HlMod;
HlSize = (DWORD)GetModuleSize(HlBase);
HlEnd = HlBase + HlSize - 1;
ClBase = (DWORD)GetModuleHandleA(CLIENT_DLL);
if (ClBase)
{
ClSize = GetModuleSize(ClBase);
ClEnd = ClBase + ClSize - 1;
}
else
{
ClBase = HwBase;
ClEnd = HwEnd;
ClSize = HwSize;
}
VgBase = (DWORD)GetModuleHandleA(GAMEUI_DLL);
if (VgBase)
{
VgSize = (DWORD)GetModuleSize(VgBase);
VgEnd = VgBase + VgSize - 1;
}
return (HwBase && ClBase && HlBase && VgBase);
}
void cOffset::Error(char* Msg)
{
MessageBoxA(0, Msg, OFF_ERROR, MB_OK | MB_ICONERROR);
ExitProcess(0);
}
DWORD cOffset::FindClientTable()
{
BYTE ClientOffset[2] = { 0x10, 0x13 };
DWORD PatternAddress = FindPattern(OFF_CLIENT_PATTERN, HwBase, HwEnd, 0);
if (PatternAddress)
{
for (byte i = 0; i < sizeof(ClientOffset); i++)
{
DWORD ClientTablePtr = *(PDWORD)(FindReference(HwBase, HwEnd, PatternAddress) + ClientOffset[i]);
if (!FarProc((DWORD)ClientTablePtr, HwBase, HwEnd) &&
!IsBadReadPtr((PVOID)ClientTablePtr, sizeof(cl_clientfunc_t)))
{
return ClientTablePtr;
}
}
}
return 0;
}
DWORD cOffset::FindEngineTable()
{
DWORD PatternAddress = FindPattern(OFF_ENGINE_PATTERN, OFF_ENGINE_MASK, ClBase, ClEnd, 0x02);
if (PatternAddress)
{
if (!FarProc((DWORD)PatternAddress, ClBase, ClEnd))
{
return *(PDWORD)PatternAddress;
}
}
else
{
PatternAddress = FindPattern(OFF_ENGINE_PATTERN, OFF_ENGINE_MASK, HlBase, HlEnd, 0x02);
if (PatternAddress)
{
if (!FarProc((DWORD)PatternAddress, HlBase, HlEnd))
{
return *(PDWORD)PatternAddress;
}
}
}
return 0;
}
DWORD cOffset::FindStudioTable()
{
DWORD StudioTablePtr = *(DWORD*)((DWORD)g_pClient->HUD_GetStudioModelInterface + 0x30); // old patch, dod
if (FarProc((DWORD)StudioTablePtr, HwBase, HwEnd) && FarProc((DWORD)StudioTablePtr, HlBase, HlEnd) &&
FarProc((DWORD)StudioTablePtr, ClBase, ClEnd))
{
StudioTablePtr = *(DWORD*)((DWORD)g_pClient->HUD_GetStudioModelInterface + 0x1A); // new patch / steam
if (FarProc((DWORD)StudioTablePtr, ClBase, ClEnd))
return 0;
}
return StudioTablePtr;
}
DWORD cOffset::FindUserMsgBase()
{
BYTE Pattern_UserMsg[9] =
{
0x52, 0x50, 0xE8, 0xFF, 0xFF, 0xFF, 0xFF, 0x83, 0x00
};
BYTE Pattern_UserMsg2[13] =
{
0xFF, 0xFF, 0xFF, 0x0C,
0x56, 0x8B, 0x35, 0xFF, 0xFF, 0xFF, 0xFF, 0x57, 0x00
};
DWORD Address = (DWORD)g_Engine.pfnHookUserMsg;
DWORD UserMsgBase = Absolute(FindPattern((PCHAR)Pattern_UserMsg, OFF_MSG_USER_MASK1, Address, Address + 0x32, 3));
if (FarProc(UserMsgBase, HwBase, HwEnd))
{
Error(OFF_USER_MSG_EROR1);
return 0;
}
UserMsgBase = FindPattern((PCHAR)Pattern_UserMsg2, OFF_MSG_USER_MASK2, UserMsgBase, UserMsgBase + 0x32, 7);
if (FarProc(UserMsgBase, HwBase, HwEnd))
{
Error(OFF_USER_MSG_EROR2);
return 0;
}
return **(PDWORD*)UserMsgBase;
}
DWORD cOffset::FindGameConsole()
{
DWORD PatternAddress = FindPattern(OFF_GAME_CONSOLE_P, VgBase, VgEnd, 0);
DWORD ReferenAddress = FindReference(VgBase, VgEnd, PatternAddress) + 0x21;
if (FarProc(ReferenAddress, VgBase, VgEnd))
{
Error(OFF_GAME_CONSOLE_R);
return 0;
}
DWORD GameConsole = *(PDWORD)ReferenAddress;
return GameConsole;
}
DWORD cOffset::FindSVCMessages()
{
DWORD EngineMsgBase = FindPattern(OFF_SVC_MSG_PATTERN, OFF_SVC_MSG_MASK, HwBase, HwEnd, 1);
PEngineMsg pEngineMsgBase = (PEngineMsg)(*(PDWORD)EngineMsgBase - sizeof(DWORD));
if (pEngineMsgBase)
{
MSG_ReadByte = (HL_MSG_ReadByte)offset.Absolute(((DWORD)pEngineMsgBase[SVC_CDTRACK].pfn) + 1);
MSG_ReadShort = (HL_MSG_ReadShort)offset.Absolute(((DWORD)pEngineMsgBase[SVC_STOPSOUND].pfn) + 1);
MSG_ReadLong = (HL_MSG_ReadLong)offset.Absolute(((DWORD)pEngineMsgBase[SVC_VERSION].pfn) + 1);
MSG_ReadFloat = (HL_MSG_ReadFloat)offset.Absolute(((DWORD)pEngineMsgBase[SVC_TIMESCALE].pfn) + 1);
MSG_ReadString = (HL_MSG_ReadString)offset.Absolute(((DWORD)pEngineMsgBase[SVC_PRINT].pfn) + 1);
DWORD CallMSG_ReadCoord = offset.Absolute((DWORD)(pEngineMsgBase[SVC_PARTICLE].pfn) + 1);
if (*(PBYTE)(CallMSG_ReadCoord + 0x13) == 0xE8) // STEAM
MSG_ReadCoord = (HL_MSG_ReadCoord)offset.Absolute((CallMSG_ReadCoord + 0x14));
else if (*(PBYTE)(CallMSG_ReadCoord + 0x15) == 0xE8) // OLD PATCH (SOFTWARE)
MSG_ReadCoord = (HL_MSG_ReadCoord)offset.Absolute((CallMSG_ReadCoord + 0x16));
else if (*(PBYTE)(CallMSG_ReadCoord + 0x0E) == 0xE8) // OLD PATCH
MSG_ReadCoord = (HL_MSG_ReadCoord)offset.Absolute((CallMSG_ReadCoord + 0x0F));
else if (*(PBYTE)(CallMSG_ReadCoord + 0x0B) == 0xE8) // OLD OLD PATCH
MSG_ReadCoord = (HL_MSG_ReadCoord)offset.Absolute((CallMSG_ReadCoord + 0x0C));
else
offset.Error(OFF_MSG_READ_CORD);
MSG_ReadCount = *(PINT*)((INT)(MSG_ReadByte)+1);
MSG_CurrentSize = *(PINT*)((INT)(MSG_ReadByte)+7);
MSG_BadRead = *(PINT*)((INT)(MSG_ReadByte)+20);
DWORD SVC_SoundBase = (DWORD)pEngineMsgBase[SVC_SOUND].pfn;
if (*(PBYTE)(SVC_SoundBase + 0x0E) == 0xE8)
{
MSG_Buffer = (sizebuf_t *)(*(PDWORD)(SVC_SoundBase + 0x0A));
MSG_StartBitReading = (HL_MSG_StartBitReading)offset.Absolute(SVC_SoundBase + 0x0F);
MSG_ReadBits = (HL_MSG_ReadBits)offset.Absolute(SVC_SoundBase + 0x16);
}
else if (*(PBYTE)(SVC_SoundBase + 0x0C) == 0xE8)
{
MSG_Buffer = (sizebuf_t *)(*(PDWORD)(SVC_SoundBase + 0x08));
MSG_StartBitReading = (HL_MSG_StartBitReading)offset.Absolute(SVC_SoundBase + 0x0D);
MSG_ReadBits = (HL_MSG_ReadBits)offset.Absolute(SVC_SoundBase + 0x14);
}
else
offset.Error(OFF_MSG_STR_READING);
if (*(PBYTE)(SVC_SoundBase + 0xD6) == 0xE8)
{
MSG_EndBitReading = (HL_MSG_EndBitReading)offset.Absolute(SVC_SoundBase + 0xD7);
MSG_ReadBitVec3Coord = (HL_MSG_ReadBitVec3Coord)offset.Absolute(SVC_SoundBase + 0xAF);
}
else if (*(PBYTE)(SVC_SoundBase + 0xE2) == 0xE8)
{
MSG_EndBitReading = (HL_MSG_EndBitReading)offset.Absolute(SVC_SoundBase + 0xE3);
MSG_ReadBitVec3Coord = (HL_MSG_ReadBitVec3Coord)offset.Absolute(SVC_SoundBase + 0xBE);
}
else
offset.Error(OFF_MSG_END_READING);
}
else
offset.Error(OFF_ENGINE_MSG_BASE);
return (DWORD)pEngineMsgBase;
}
DWORD cOffset::FindEventMsgBase()
{
DWORD PatternAddress = FindPattern(OFF_EVENT_MSG_BASE, HwBase, HwEnd, 0);
DWORD ReferenAddress = FindReference(HwBase, HwEnd, PatternAddress) - 0x07;
if (FarProc(ReferenAddress, HwBase, HwEnd))
{
Error(OFF_EVENT_MSG_ERROR);
return 0;
}
return *(PDWORD)(*(PDWORD)ReferenAddress);
}
void cOffset::ConsoleColorInitalize()
{
DWORD GameConsole = FindGameConsole();
if (GameConsole)
{
DWORD Panel = (*(PDWORD)(GameConsole + 8) - GameConsole);
Console_TextColor = PColor24(Panel + GameConsole + 288 + sizeof(DWORD));
if (*(PDWORD)(DWORD(Console_TextColor) + 8) != 0)
{
Console_TextColor = PColor24(Panel + GameConsole + 288 + (sizeof(DWORD) * 2));
}
}
}
void cOffset::GetGameInfo(pGameInfo_s GameInfo)
{
typedef int(*function)();
pcmd_t cmd = CommandByName("version");
DWORD Address = (DWORD)cmd->function;
GameInfo->GameName = *(PCHAR*)(UINT(Address) + 1);
GameInfo->GameVersion = *(PCHAR*)(UINT(Address) + 6);
GameInfo->Protocol = *(PBYTE)(UINT(Address) + 11);
Address = Absolute(UINT(Address) + 23);
if (FarProc(Address, HwBase, HwEnd))
Error(OFF_ERR_GAMEINFO);
function GetBuild = (function)Address;
GameInfo->Build = GetBuild();
}
void cOffset::CopyClient()
{
native_memcpy(&g_Client, g_pClient, sizeof(cl_clientfunc_t));
}
void cOffset::CopyEngine()
{
native_memcpy(&g_Engine, g_pEngine, sizeof(cl_enginefunc_t));
}
void cOffset::CopyStudio()
{
native_memcpy(&g_Studio, g_pStudio, sizeof(engine_studio_api_t));
}
DWORD cOffset::Absolute(DWORD Address)
{
return Address + *(PDWORD)Address + 4;
}
DWORD cOffset::FarProc(DWORD Address, DWORD LB, DWORD HB)
{
return ((Address < LB) || (Address > HB));
}
DWORD cOffset::FindReference(DWORD start, DWORD end, DWORD Address)
{
char szPattern[] = { 0x68, 0x00, 0x00, 0x00, 0x00, 0x00 };
*(PDWORD)&szPattern[1] = Address;
return FindPattern(szPattern, start, end, 0);
}
DWORD cOffset::FindPattern(PCHAR pattern, PCHAR mask, DWORD start, DWORD end, DWORD offset)
{
int patternLength = native_strlen(pattern);
bool found = false;
for (DWORD i = start; i < end - patternLength; i++)
{
found = true;
for (int idx = 0; idx < patternLength; idx++)
{
if (mask[idx] == 'x' && pattern[idx] != *(PCHAR)(i + idx))
{
found = false;
break;
}
}
if (found)
{
return i + offset;
}
}
return 0;
}
DWORD cOffset::FindPattern(PCHAR pattern, DWORD start, DWORD end, DWORD offset)
{
int patternLength = native_strlen(pattern);
bool found = false;
for (DWORD i = start; i < end - patternLength; i++)
{
found = true;
for (int idx = 0; idx < patternLength; idx++)
{
if (pattern[idx] != *(PCHAR)(i + idx))
{
found = false;
break;
}
}
if (found)
{
return i + offset;
}
}
return 0;
}
DWORD cOffset::GetModuleSize(DWORD Address)
{
return PIMAGE_NT_HEADERS(Address + (DWORD)PIMAGE_DOS_HEADER(Address)->e_lfanew)->OptionalHeader.SizeOfImage;
}