mirror of
https://github.com/CookiePLMonster/SilentPatch.git
synced 2024-12-28 06:43:01 +05:00
ddraw.dll patching code unified to work properly with encrypted EXEs
This commit is contained in:
Silent
parent
3c3a25933b
commit
dd96f14947
1 changed files with 200 additions and 164 deletions
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@ -21,99 +21,6 @@ extern "C" HRESULT WINAPI DirectDrawCreateEx(GUID FAR *lpGUID, LPVOID *lplpDD, R
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HMODULE hLib = LoadLibraryW(wcSystemPath);
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pDirectDrawCreateEx = (HRESULT(WINAPI*)(GUID FAR*, LPVOID*, REFIID, IUnknown FAR*))GetProcAddress(hLib, "DirectDrawCreateEx");
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static char aNoDesktopMode[64];
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RECT desktop;
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GetWindowRect(GetDesktopWindow(), &desktop);
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sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
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using namespace MemoryVP;
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if (*(DWORD*)0x5C1E70 == 0x53E58955)
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{
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// III 1.0
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Patch<DWORD>(0x581E5E, desktop.right);
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Patch<DWORD>(0x581E68, desktop.bottom);
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Patch<BYTE>(0x581E72, 32);
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Patch<const char*>(0x581EA8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581411, 0xEB);
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}
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else if (*(DWORD*)0x5C2130 == 0x53E58955)
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{
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// III 1.1
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Patch<DWORD>(0x58219E, desktop.right);
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Patch<DWORD>(0x5821A8, desktop.bottom);
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Patch<BYTE>(0x5821B2, 32);
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Patch<const char*>(0x5821E8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581753, 0xEB);
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}
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else if (*(DWORD*)0x5C6FD0 == 0x53E58955)
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{
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// III Steam
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Patch<DWORD>(0x58208E, desktop.right);
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Patch<DWORD>(0x582098, desktop.bottom);
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Patch<BYTE>(0x5820A2, 32);
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Patch<const char*>(0x5820D8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581653, 0xEB);
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}
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else if (*(DWORD*)0x667BF0 == 0x53E58955)
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{
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// VC 1.0
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Patch<DWORD>(0x600E7E, desktop.right);
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Patch<DWORD>(0x600E88, desktop.bottom);
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Patch<BYTE>(0x600E92, 32);
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Patch<const char*>(0x600EC8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601E26, 0xEB);
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}
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else if (*(DWORD*)0x667C40 == 0x53E58955)
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{
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// VC 1.1
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Patch<DWORD>(0x600E9E, desktop.right);
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Patch<DWORD>(0x600EA8, desktop.bottom);
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Patch<BYTE>(0x600EB2, 32);
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Patch<const char*>(0x600EE8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601E56, 0xEB);
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}
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else if (*(DWORD*)0x666BA0 == 0x53E58955)
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{
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// VC Steam
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Patch<DWORD>(0x600ADE, desktop.right);
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Patch<DWORD>(0x600AE8, desktop.bottom);
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Patch<BYTE>(0x600AF2, 32);
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Patch<const char*>(0x600B28, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601A96, 0xEB);
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}
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// Give _rwcseg proper access rights
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HMODULE hModule = GetModuleHandle(nullptr);
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IMAGE_NT_HEADERS* ntHeader = (IMAGE_NT_HEADERS*)((ptrdiff_t)hModule + ((IMAGE_DOS_HEADER*)hModule)->e_lfanew);
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WORD NumberOfSections = ntHeader->FileHeader.NumberOfSections;
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IMAGE_SECTION_HEADER* pSection = IMAGE_FIRST_SECTION(ntHeader);
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for ( WORD i = 0; i < NumberOfSections; i++ )
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{
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if ( *(uint64_t*)(pSection->Name) == 0x006765736377725F ) // _rwcseg
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{
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DWORD dwProtect;
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VirtualProtect((LPVOID)((ptrdiff_t)hModule + pSection->VirtualAddress), pSection->Misc.VirtualSize, PAGE_EXECUTE_READ, &dwProtect);
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break;
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}
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pSection++;
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}
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}
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return pDirectDrawCreateEx(lpGUID, lplpDD, iid, pUnkOuter);
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}
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@ -128,11 +35,209 @@ char* GetMyDocumentsPath()
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{
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SHGetFolderPath(nullptr, CSIDL_MYDOCUMENTS, nullptr, SHGFP_TYPE_CURRENT, cUserFilesPath);
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PathAppend(cUserFilesPath, *ppUserFilesDir);
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CreateDirectory(cUserFilesPath, nullptr);
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}
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return cUserFilesPath;
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}
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void InjectHooks()
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{
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using namespace MemoryVP;
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static char aNoDesktopMode[64];
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RECT desktop;
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GetWindowRect(GetDesktopWindow(), &desktop);
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sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
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if (*(DWORD*)0x5C1E75 == 0xB85548EC)
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{
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// III 1.0
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ppUserFilesDir = (char**)0x580C16;
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InjectHook(0x580BB0, GetMyDocumentsPath, PATCH_JUMP);
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Patch<DWORD>(0x581E5E, desktop.right);
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Patch<DWORD>(0x581E68, desktop.bottom);
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Patch<BYTE>(0x581E72, 32);
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Patch<const char*>(0x581EA8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581411, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x5812D6, 0xB8);
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Patch<DWORD>(0x5812D7, 0x900);
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}
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else if (*(DWORD*)0x5C2135 == 0xB85548EC)
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{
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// III 1.1
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ppUserFilesDir = (char**)0x580F66;
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InjectHook(0x580F00, GetMyDocumentsPath, PATCH_JUMP);
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Patch<DWORD>(0x58219E, desktop.right);
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Patch<DWORD>(0x5821A8, desktop.bottom);
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Patch<BYTE>(0x5821B2, 32);
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Patch<const char*>(0x5821E8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581753, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x581620, 0xB8);
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Patch<DWORD>(0x581621, 0x900);
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}
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else if (*(DWORD*)0x5C6FD5 == 0xB85548EC)
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{
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// III Steam
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ppUserFilesDir = (char**)0x580E66;
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InjectHook(0x580E00, GetMyDocumentsPath, PATCH_JUMP);
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Patch<DWORD>(0x58208E, desktop.right);
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Patch<DWORD>(0x582098, desktop.bottom);
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Patch<BYTE>(0x5820A2, 32);
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Patch<const char*>(0x5820D8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x581653, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x581520, 0xB8);
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Patch<DWORD>(0x581521, 0x900);
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}
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else if (*(DWORD*)0x667BF5 == 0xB85548EC)
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{
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// VC 1.0
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ppUserFilesDir = (char**)0x6022AA;
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InjectHook(0x602240, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x601A40, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x601A45, 0x601B2F, PATCH_JUMP);
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Patch<DWORD>(0x600E7E, desktop.right);
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Patch<DWORD>(0x600E88, desktop.bottom);
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Patch<BYTE>(0x600E92, 32);
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Patch<const char*>(0x600EC8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601E26, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x601CA0, 0xB8);
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Patch<DWORD>(0x601CA1, 0x900);
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}
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else if (*(DWORD*)0x667C45 == 0xB85548EC)
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{
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// VC 1.1
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ppUserFilesDir = (char**)0x60228A;
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InjectHook(0x602220, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x601A70, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x601A75, 0x601B5F, PATCH_JUMP);
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Patch<DWORD>(0x600E9E, desktop.right);
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Patch<DWORD>(0x600EA8, desktop.bottom);
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Patch<BYTE>(0x600EB2, 32);
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Patch<const char*>(0x600EE8, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601E56, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x601CD0, 0xB8);
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Patch<DWORD>(0x601CD1, 0x900);
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}
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else if (*(DWORD*)0x666BA5 == 0xB85548EC)
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{
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// VC Steam
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ppUserFilesDir = (char**)0x601ECA;
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InjectHook(0x601E60, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x6016B0, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x6016B5, 0x60179F, PATCH_JUMP);
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Patch<DWORD>(0x600ADE, desktop.right);
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Patch<DWORD>(0x600AE8, desktop.bottom);
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Patch<BYTE>(0x600AF2, 32);
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Patch<const char*>(0x600B28, aNoDesktopMode);
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// No 12mb vram check
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Patch<BYTE>(0x601A96, 0xEB);
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// No DirectPlay dependency
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Patch<BYTE>(0x601910, 0xB8);
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Patch<DWORD>(0x601911, 0x900);
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}
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}
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static VOID (WINAPI* pOrgGetStartupInfoA)(LPSTARTUPINFOA);
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VOID WINAPI GetStartupInfoA_Hook(LPSTARTUPINFOA lpStartupInfo)
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{
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static bool bPatched = false;
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if ( !bPatched )
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{
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using namespace MemoryVP;
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bPatched = true;
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InjectHooks();
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}
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pOrgGetStartupInfoA(lpStartupInfo);
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}
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static HINSTANCE hInstance;
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void PatchIAT()
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{
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IMAGE_NT_HEADERS* ntHeader = (IMAGE_NT_HEADERS*)((DWORD)hInstance + ((IMAGE_DOS_HEADER*)hInstance)->e_lfanew);
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// Give _rwcseg proper access rights
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WORD NumberOfSections = ntHeader->FileHeader.NumberOfSections;
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IMAGE_SECTION_HEADER* pSection = IMAGE_FIRST_SECTION(ntHeader);
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for ( WORD i = 0; i < NumberOfSections; i++, pSection++ )
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{
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if ( *(uint64_t*)(pSection->Name) == 0x006765736377725F ) // _rwcseg
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{
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DWORD dwProtect;
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VirtualProtect((LPVOID)((ptrdiff_t)hInstance + pSection->VirtualAddress), pSection->Misc.VirtualSize, PAGE_EXECUTE_READ, &dwProtect);
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break;
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}
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}
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// Find IAT
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IMAGE_IMPORT_DESCRIPTOR* pImports = (IMAGE_IMPORT_DESCRIPTOR*)((DWORD)hInstance + ntHeader->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress);
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// Find kernel32.dll
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for ( ; pImports->Name != 0; pImports++ )
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{
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if ( !_stricmp((const char*)((DWORD)hInstance + pImports->Name), "KERNEL32.DLL") )
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{
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IMAGE_IMPORT_BY_NAME** pFunctions = (IMAGE_IMPORT_BY_NAME**)((DWORD)hInstance + pImports->OriginalFirstThunk);
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// kernel32.dll found, find GetStartupInfoA
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for ( ptrdiff_t j = 0; pFunctions[j] != nullptr; j++ )
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{
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if ( !strcmp((const char*)((DWORD)hInstance + pFunctions[j]->Name), "GetStartupInfoA") )
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{
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// Overwrite the address with the address to a custom GetStartupInfoA
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DWORD dwProtect[2];
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DWORD_PTR* pAddress = &((DWORD_PTR*)((DWORD)hInstance + pImports->FirstThunk))[j];
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VirtualProtect(pAddress, sizeof(DWORD), PAGE_EXECUTE_READWRITE, &dwProtect[0]);
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pOrgGetStartupInfoA = **(VOID(WINAPI**)(LPSTARTUPINFOA))pAddress;
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*pAddress = (DWORD)GetStartupInfoA_Hook;
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VirtualProtect(pAddress, sizeof(DWORD), dwProtect[0], &dwProtect[1]);
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return;
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}
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}
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}
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}
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}
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BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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{
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UNREFERENCED_PARAMETER(hinstDLL);
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@ -140,79 +245,10 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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if ( fdwReason == DLL_PROCESS_ATTACH )
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{
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using namespace MemoryVP;
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DisableThreadLibraryCalls(hinstDLL);
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if (*(DWORD*)0x5C1E75 == 0xB85548EC)
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{
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// III 1.0
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ppUserFilesDir = (char**)0x580C16;
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InjectHook(0x580BB0, GetMyDocumentsPath, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x5812D6, 0xB8);
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Patch<DWORD>(0x5812D7, 0x900);
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}
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else if (*(DWORD*)0x5C2135 == 0xB85548EC)
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{
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// III 1.1
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ppUserFilesDir = (char**)0x580F66;
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InjectHook(0x580F00, GetMyDocumentsPath, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x581620, 0xB8);
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Patch<DWORD>(0x581621, 0x900);
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}
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else if (*(DWORD*)0x5C6FD5 == 0xB85548EC)
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{
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// III Steam
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ppUserFilesDir = (char**)0x580E66;
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InjectHook(0x580E00, GetMyDocumentsPath, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x581520, 0xB8);
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Patch<DWORD>(0x581521, 0x900);
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}
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else if (*(DWORD*)0x667BF5 == 0xB85548EC)
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{
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// VC 1.0
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ppUserFilesDir = (char**)0x6022AA;
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InjectHook(0x602240, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x601A40, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x601A45, 0x601B2F, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x601CA0, 0xB8);
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Patch<DWORD>(0x601CA1, 0x900);
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}
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else if (*(DWORD*)0x667C45 == 0xB85548EC)
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{
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// VC 1.1
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ppUserFilesDir = (char**)0x60228A;
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InjectHook(0x602220, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x601A70, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x601A75, 0x601B5F, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x601CD0, 0xB8);
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Patch<DWORD>(0x601CD1, 0x900);
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}
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else if (*(DWORD*)0x666BA5 == 0xB85548EC)
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{
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// VC Steam
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ppUserFilesDir = (char**)0x601ECA;
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InjectHook(0x601E60, GetMyDocumentsPath, PATCH_JUMP);
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InjectHook(0x6016B0, GetMyDocumentsPath, PATCH_CALL);
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InjectHook(0x6016B5, 0x60179F, PATCH_JUMP);
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// No DirectPlay dependency
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Patch<BYTE>(0x601910, 0xB8);
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Patch<DWORD>(0x601911, 0x900);
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}
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hInstance = GetModuleHandle(nullptr);
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PatchIAT();
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}
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return TRUE;
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