Leaked source code of windows server 2003
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/****************************** Module Header ******************************\
* Module Name: wow.h** Copyright (c) 1985 - 1999, Microsoft Corporation** This header file contains macros to be used in rtl\wow.c client\ and kernel\** History:* 22-AUG-97 CLupu created\***************************************************************************/
#if !defined(_WIN64)
/*
* WIN32 and WOW6432 version of StartValidateHandleMacro */#define StartValidateHandleMacro(h) \
{ \ PHE phe; \ DWORD dw; \ WORD uniq; \ \ /* \
* This is a macro that does an AND with HMINDEXBITS, \ * so it is fast. \ */ \ dw = HMIndexFromHandle(h); \ \ /* \
* Make sure it is part of our handle table. \ */ \ if (dw < gpsi->cHandleEntries) { \ /* \
* Make sure it is the handle \ * the app thought it was, by \ * checking the uniq bits in \ * the handle against the uniq \ * bits in the handle entry. \ */ \ phe = &gSharedInfo.aheList[dw]; \ uniq = HMUniqFromHandle(h); \ if ( uniq == phe->wUniq \ || uniq == 0 \ || uniq == HMUNIQBITS \ ) { \
#else /* _WIN64 */
#if defined(_USERK_)
/*
* Allow 32bit process running on 64bit OS to mask the uniq bits (WOW64). */#define ALLOWZEROFORWOW64 ((uniq == 0) && (PsGetProcessWow64Process(PsGetCurrentProcess()) != NULL))
#else
#define ALLOWZEROFORWOW64 0
#endif
/*
* WIN64 version of StartValidateHandleMacro */#define StartValidateHandleMacro(h) \
{ \ PHE phe; \ DWORD dw; \ WORD uniq; \ \ /* \
* This is a macro that does an AND with HMINDEXBITS, \ * so it is fast. \ */ \ dw = HMIndexFromHandle(h); \ \ /* \
* Make sure it is part of our handle table. \ */ \ if (dw < gpsi->cHandleEntries) { \ /* \
* Make sure it is the handle \ * the app thought it was, by \ * checking the uniq bits in \ * the handle against the uniq \ * bits in the handle entry. \ * For Win64 uniq can't be zero! \ */ \ phe = &gSharedInfo.aheList[dw]; \ uniq = HMUniqFromHandle(h); \ if ( uniq == phe->wUniq \ || uniq == HMUNIQBITS \ || ALLOWZEROFORWOW64 \ ) { \
#endif /* _WIN64 */
#define BeginAliveValidateHandleMacro() \
/* \
* Now make sure that the handle is not destroyed. On free \ * builds the RIP disappears and the main line is straightthrough. \ */ \ if (!(phe->bFlags & HANDLEF_DESTROY)) { \
#define EndAliveValidateHandleMacro() \
} else { \ RIPMSG2(RIP_WARNING, "ValidateAliveHandle: Object phe %#p is destroyed. Handle: %#p", \ phe, h); \ } \
#define BeginTypeValidateHandleMacro(pobj, bTypeTest) \
/* \
* Now make sure the app is passing the right handle \ * type for this api. If the handle is TYPE_FREE, this'll \ * catch it. Also let Generic requests through. \ */ \ if ((phe->bType == bTypeTest) || \ (bTypeTest == TYPE_GENERIC && phe->bType != TYPE_FREE)) { \ \ /* \
* Instead of try/except we use the heap range check \ * mechanism to verify that the given 'pwnd' belongs to \ * the default desktop. We also have to do a Win 3.1 like \ * check to make sure the window is not deleted \ * See NT bug 12242 Kitchen app. Also 6479 \ * \ * TESTDESKOP returns the handle if the handle is valid \ * in the current desktop \ */ \ pobj = phe->phead; \ { \
#define EndTypeValidateHandleMacro \
} \ } \
#define EndValidateHandleMacro \
} \ } \}
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