/*++ Copyright (c) 2000-2001 Microsoft Corporation Module Name: ShimHookMacro.h Abstract: Shim hooking macros for version 2 Notes: None History: 10/29/2000 markder Created 12/06/2000 robkenny Converted to use namespaces 09/11/2001 mnikkel Modified DPFN and LOGN to retain LastError --*/ #pragma once #ifndef _ShimHookMacro_h_ #define _ShimHookMacro_h_ // // These are dwReason values that the shim notification functions // can be called with. // // // This means that all the static linked DLLs have run their init routines. // #define SHIM_STATIC_DLLS_INITIALIZED 100 // // This means that the current process is about to die. // This gives the shims a chance to do cleanup work while all the modules // are still loaded. // #define SHIM_PROCESS_DYING 101 // // This notification is sent to notify the shims that a DLL is unloading // #define SHIM_DLL_LOADING 102 extern PLDR_DATA_TABLE_ENTRY g_DllLoadingEntry; #define GETDLLLOADINGHANDLE() (g_DllLoadingEntry) // // This debug macro needs to be in this file because it needs access // to g_szModuleName which is only defined inside the namespace. // inline void DPFN(ShimLib::DEBUGLEVEL dwDetail, LPCSTR pszFmt, ...) { #if DBG // This must be the first line of this routine to preserve LastError. DWORD dwLastError = GetLastError(); extern const CHAR * g_szModuleName; // created by the DECLARE_SHIM macro, inside of the shim's namespace va_list vaArgList; va_start(vaArgList, pszFmt); ShimLib::DebugPrintfList(g_szModuleName, dwDetail, pszFmt, vaArgList); va_end(vaArgList); // This must be the last line of this routine to preserve LastError. SetLastError(dwLastError); #else dwDetail; pszFmt; #endif } inline void LOGN(ShimLib::DEBUGLEVEL dwDetail, LPCSTR pszFmt, ...) { // This must be the first line of this routine to preserve LastError. DWORD dwLastError = GetLastError(); extern const CHAR * g_szModuleName; if (ShimLib::g_bFileLogEnabled) { va_list vaArgList; va_start(vaArgList, pszFmt); ShimLib::ShimLogList(g_szModuleName, dwDetail, pszFmt, vaArgList); va_end(vaArgList); } #if DBG // If logging isn't enabled, dump to the debugger else { va_list vaArgList; va_start(vaArgList, pszFmt); ShimLib::DebugPrintfList(g_szModuleName, dwDetail, pszFmt, vaArgList); va_end(vaArgList); } #endif // This must be the last line of this routine to preserve LastError. SetLastError(dwLastError); } #define APIHOOK(hook) APIHook_##hook #define COMHOOK(iface, hook) COMHook_##iface##_##hook #define APIHOOK_ENUM_BEGIN enum { #define APIHOOK_ENUM_ENTRY(hook) APIHOOK_##hook##, #define APIHOOK_ENUM_ENTRY_COMSERVER(module) APIHOOK_##module##_DllGetClassObject, #define APIHOOK_ENUM_ENTRY_DIRECTX_COMSERVER() \ APIHOOK_ENUM_ENTRY_COMSERVER(DDRAW) \ APIHOOK_ENUM_ENTRY_COMSERVER(DSOUND) \ APIHOOK_ENUM_ENTRY_COMSERVER(DPLAYX) \ APIHOOK_ENUM_ENTRY_COMSERVER(DINPUT) \ APIHOOK_ENUM_ENTRY(DirectDrawCreate) \ APIHOOK_ENUM_ENTRY(DirectDrawCreateEx) \ APIHOOK_ENUM_ENTRY(DirectSoundCreate) \ APIHOOK_ENUM_ENTRY(DirectPlayCreate) \ APIHOOK_ENUM_ENTRY(DirectInputCreateA) \ APIHOOK_ENUM_ENTRY(DirectInputCreateW) \ APIHOOK_ENUM_ENTRY(DirectInputCreateEx) #define APIHOOK_ENUM_END APIHOOK_Count }; #define HOOK_BEGIN \ PHOOKAPI \ InitializeHooksMulti( \ DWORD fdwReason, \ LPSTR pszCmdLine, \ DWORD* pdwHookCount \ ) \ { \ DPFN(eDbgLevelSpew, \ "[InitializeHooksMulti] fdwReason(%d) pszCmdLine(%s)\n", \ fdwReason, pszCmdLine); \ \ if (fdwReason == DLL_PROCESS_ATTACH) { \ lstrcpynA( g_szCommandLine, pszCmdLine, SHIM_COMMAND_LINE_MAX_BUFFER); \ \ g_pAPIHooks = \ (PHOOKAPI) ShimMalloc(sizeof(HOOKAPI)*APIHOOK_Count); \ if (g_pAPIHooks == NULL) { \ return NULL; \ } \ *pdwHookCount = APIHOOK_Count; \ } #define HOOK_END \ if (fdwReason == DLL_PROCESS_ATTACH) { \ DPFN(eDbgLevelSpew, \ "[InitializeHooksMulti] pdwHookCount(%d)\n", \ pdwHookCount ? *pdwHookCount : 0); \ } \ return g_pAPIHooks; \ } #define APIHOOK_ENTRY(module, hook) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ g_pAPIHooks[APIHOOK_##hook##].pszModule = #module; \ g_pAPIHooks[APIHOOK_##hook##].pszFunctionName = #hook; \ g_pAPIHooks[APIHOOK_##hook##].pfnNew = APIHOOK(hook); \ } #define APIHOOK_ENTRY_NAME(module, hook, hookname) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ g_pAPIHooks[APIHOOK_##hook##].pszModule = #module; \ g_pAPIHooks[APIHOOK_##hook##].pszFunctionName = #hookname; \ g_pAPIHooks[APIHOOK_##hook##].pfnNew = APIHOOK(hook); \ } #define APIHOOK_ENTRY_ORD(module, hook, hookord) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ g_pAPIHooks[APIHOOK_##hook##].pszModule = #module; \ g_pAPIHooks[APIHOOK_##hook##].pszFunctionName = (char *)IntToPtr(hookord); \ g_pAPIHooks[APIHOOK_##hook##].pfnNew = APIHOOK(hook); \ } #define APIHOOK_ENTRY_COMSERVER(module) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pszModule = #module ".DLL"; \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pszFunctionName = "DllGetClassObject"; \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pfnNew = APIHOOK(module##_DllGetClassObject); \ } #define APIHOOK_ENTRY_DIRECTX_COMSERVER() \ if (fdwReason == DLL_PROCESS_ATTACH) { \ APIHOOK_ENTRY_COMSERVER(DDRAW) \ APIHOOK_ENTRY_COMSERVER(DSOUND) \ APIHOOK_ENTRY_COMSERVER(DPLAYX) \ APIHOOK_ENTRY_COMSERVER(DINPUT) \ APIHOOK_ENTRY(DDRAW.DLL, DirectDrawCreate) \ APIHOOK_ENTRY(DDRAW.DLL, DirectDrawCreateEx) \ APIHOOK_ENTRY(DSOUND.DLL, DirectSoundCreate) \ APIHOOK_ENTRY(DPLAYX.DLL, DirectPlayCreate) \ APIHOOK_ENTRY(DINPUT.DLL, DirectInputCreateA) \ APIHOOK_ENTRY(DINPUT.DLL, DirectInputCreateW) \ APIHOOK_ENTRY(DINPUT.DLL, DirectInputCreateEx) \ } #define COMHOOK_ENTRY(obj, iface, hook, vtblndx) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ AddComHook(CLSID_##obj, IID_##iface, COMHOOK(iface, hook), vtblndx); \ } #define DECLARE_SHIM(shim) \ namespace NS_##shim \ { \ const CHAR * g_szModuleName = #shim; \ CHAR g_szCommandLine[SHIM_COMMAND_LINE_MAX_BUFFER]; \ PHOOKAPI g_pAPIHooks = NULL; \ BOOL g_bSubshimUsed = FALSE; \ extern PHOOKAPI InitializeHooksMulti(DWORD, LPSTR, DWORD*); \ }; #define MULTISHIM_BEGIN() \ VOID ShimLib::InitializeHooks(DWORD) \ { \ g_dwShimVersion = 2; \ } \ PHOOKAPI ShimLib::InitializeHooksEx(DWORD fdwReason, LPWSTR pwszShim, LPSTR pszCmdLine, DWORD* pdwHookCount) \ { \ PHOOKAPI pAPIHooks = NULL; \ g_bMultiShim = TRUE; #define MULTISHIM_ENTRY(shim) \ if ((fdwReason == DLL_PROCESS_ATTACH && pwszShim != NULL && 0 == _wcsicmp( pwszShim, L#shim )) || \ (fdwReason == DLL_PROCESS_DETACH && NS_##shim::g_bSubshimUsed) || \ (fdwReason == SHIM_PROCESS_DYING && NS_##shim::g_bSubshimUsed) || \ (fdwReason == SHIM_DLL_LOADING && NS_##shim::g_bSubshimUsed) || \ (fdwReason == SHIM_STATIC_DLLS_INITIALIZED && NS_##shim::g_bSubshimUsed)) { \ NS_##shim::g_bSubshimUsed = TRUE; \ pAPIHooks = NS_##shim::InitializeHooksMulti( fdwReason, pszCmdLine, pdwHookCount ); \ } #define MULTISHIM_END() \ return pAPIHooks; \ } #define MULTISHIM_NOTIFY_FUNCTION() NotifyFn #define NOTIFY_FUNCTION NotifyFn #define CALL_MULTISHIM_NOTIFY_FUNCTION() NotifyFn(fdwReason); #define CALL_NOTIFY_FUNCTION \ if (FALSE == NotifyFn(fdwReason) && \ fdwReason == DLL_PROCESS_ATTACH) { \ *pdwHookCount = 0; \ DPFN(eDbgLevelSpew, \ "[InitializeHooksMulti] NotifyFn returned FALSE, fail load shim\n", \ g_pAPIHooks); \ return NULL; \ } #define ORIGINAL_API(hook) \ (*(_pfn_##hook##)(g_pAPIHooks[APIHOOK_##hook##].pfnOld)) #define _ORIGINAL_API(hook, proto) \ (*(_pfn_##proto##)(g_pAPIHooks[APIHOOK_##hook##].pfnOld)) #define ORIGINAL_COM(iface, hook, pThis) \ (*(_pfn_##iface##_##hook##)(LookupOriginalCOMFunction(*((PVOID *) pThis), COMHOOK(iface, hook), TRUE ))) #define COMMAND_LINE \ (g_szCommandLine) #define IMPLEMENT_COMSERVER_HOOK(module) \ HRESULT \ APIHOOK(##module##_DllGetClassObject)( \ REFCLSID rclsid, \ REFIID riid, \ LPVOID * ppv \ ) \ { \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = _ORIGINAL_API(module##_DllGetClassObject, DllGetClassObject)( \ rclsid, riid, ppv); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(rclsid, riid, ppv, TRUE); \ } \ \ return hrReturn; \ } #define IMPLEMENT_DIRECTX_COMSERVER_HOOKS() \ IMPLEMENT_COMSERVER_HOOK(DDRAW) \ IMPLEMENT_COMSERVER_HOOK(DSOUND) \ IMPLEMENT_COMSERVER_HOOK(DPLAYX) \ IMPLEMENT_COMSERVER_HOOK(DINPUT) \ \ HRESULT \ APIHOOK(DirectDrawCreate)( \ IN GUID FAR *lpGUID, \ OUT LPVOID *lplpDD, \ OUT IUnknown* pUnkOuter \ ) \ { \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectDrawCreate)(lpGUID, lplpDD, pUnkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectDraw, IID_IDirectDraw, lplpDD, FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectDrawCreateEx)( \ GUID FAR *lpGUID, \ LPVOID *lplpDD, \ REFIID iid, \ IUnknown* pUnkOuter \ ) \ { \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectDrawCreateEx)( \ lpGUID, \ lplpDD, \ iid, \ pUnkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectDraw, iid, lplpDD, FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectSoundCreate)( \ LPCGUID lpcGuid, \ LPDIRECTSOUND *ppDS, \ LPUNKNOWN pUnkOuter) \ { \ \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectSoundCreate)( \ lpcGuid, \ ppDS, \ pUnkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectSound, \ IID_IDirectSound, \ (LPVOID*) ppDS, \ FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectPlayCreate)( \ LPGUID lpGUIDSP, \ LPDIRECTPLAY FAR *lplpDP, \ IUnknown *lpUnk) \ { \ \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectPlayCreate)( \ lpGUIDSP, \ lplpDP, \ lpUnk); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectPlay, \ IID_IDirectPlay, \ (LPVOID*) lplpDP, \ FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectInputCreateA)( \ HINSTANCE hinst, \ DWORD dwVersion, \ LPDIRECTINPUTA * lplpDirectInput, \ LPUNKNOWN punkOuter) \ { \ \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectInputCreateA)( \ hinst, \ dwVersion, \ lplpDirectInput, \ punkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectInput, \ IID_IDirectInputA, \ (LPVOID*) lplpDirectInput, \ FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectInputCreateW)( \ HINSTANCE hinst, \ DWORD dwVersion, \ LPDIRECTINPUTW * lplpDirectInput, \ LPUNKNOWN punkOuter) \ { \ \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectInputCreateW)( \ hinst, \ dwVersion, \ lplpDirectInput, \ punkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectInput, \ IID_IDirectInputW, \ (LPVOID*) lplpDirectInput, \ FALSE); \ } \ \ return hrReturn; \ } \ \ HRESULT \ APIHOOK(DirectInputCreateEx)( \ HINSTANCE hinst, \ DWORD dwVersion, \ REFIID riidltf, \ LPVOID * ppvOut, \ LPUNKNOWN punkOuter) \ { \ \ HRESULT hrReturn = E_FAIL; \ \ hrReturn = ORIGINAL_API(DirectInputCreateEx)( \ hinst, \ dwVersion, \ riidltf, \ ppvOut, \ punkOuter); \ \ if (S_OK == hrReturn) { \ HookCOMInterface(CLSID_DirectInput, \ riidltf, \ (LPVOID*) ppvOut, \ FALSE); \ } \ \ return hrReturn; \ } // Only add this hook to the list if bDeclare is TRUE // otherwise a blank entry is added. #define APIHOOK_ENTRY_OR_NOT(bDeclare, module, hook) \ if (bDeclare) { \ APIHOOK_ENTRY(module, hook) \ } // Only add this hook to the list if bDeclare is TRUE // otherwise a blank entry is added. #define APIHOOK_ENTRY_COMSERVER_OR_NOT(bDeclare, module) \ if (bDeclare) { \ APIHOOK_ENTRY_COMSERVER(module) \ } else { \ APIHOOK_ENTRY_COMSERVER_BLANK(module) \ } #define APIHOOK_ENTRY_COMSERVER_BLANK(module) \ if (fdwReason == DLL_PROCESS_ATTACH) { \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pszModule = ""; \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pszFunctionName = ""; \ g_pAPIHooks[APIHOOK_##module##_DllGetClassObject].pfnNew = NULL; \ } #endif // _SHIMHOOKMACRO_H_