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add macros to probe basic type pointers

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svn path=/trunk/; revision=17461
This commit is contained in:
Thomas Bluemel 2005-08-21 15:14:36 +00:00
parent 5d1efdc288
commit 6e74d05c08
1 changed files with 50 additions and 1 deletions
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51
reactos/ntoskrnl/include/internal/ntoskrnl.h
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@ -92,8 +92,57 @@ RtlReleaseCapturedUnicodeString(
IN BOOLEAN CaptureIfKernel
);
#endif
/*
* Inlined Probing Macros
*
* NOTE: Alignment of the pointers is not verified!
*/
#define ProbeForWriteGenericType(Ptr, Type) \
do { \
if ((ULONG_PTR)(Ptr) + sizeof(Type) - 1 < (ULONG_PTR)(Ptr) || \
(ULONG_PTR)(Ptr) + sizeof(Type) - 1 >= (ULONG_PTR)MmUserProbeAddress) { \
ExRaiseStatus (STATUS_ACCESS_VIOLATION); \
} \
*(volatile Type *)(Ptr) = *(volatile Type *)(Ptr); \
} while (0)
#define ProbeForWriteUchar(Ptr) ProbeForWriteGenericType(Ptr, UCHAR)
#define ProbeForWriteChar(Ptr) ProbeForWriteGenericType(Ptr, Char)
#define ProbeForWriteUshort(Ptr) ProbeForWriteGenericType(Ptr, USHORT)
#define ProbeForWriteShort(Ptr) ProbeForWriteGenericType(Ptr, SHORT)
#define ProbeForWriteUlong(Ptr) ProbeForWriteGenericType(Ptr, ULONG)
#define ProbeForWriteLong(Ptr) ProbeForWriteGenericType(Ptr, LONG)
#define ProbeForWriteUint(Ptr) ProbeForWriteGenericType(Ptr, UINT)
#define ProbeForWriteInt(Ptr) ProbeForWriteGenericType(Ptr, INT)
#define ProbeForWriteUlonglong(Ptr) ProbeForWriteGenericType(Ptr, ULONGLONG)
#define ProbeForWriteLonglong(Ptr) ProbeForWriteGenericType(Ptr, LONGLONG)
#define ProbeForWriteLonglong(Ptr) ProbeForWriteGenericType(Ptr, LONGLONG)
#define ProbeForWritePointer(Ptr) ProbeForWriteGenericType(Ptr, PVOID)
#define ProbeForWriteHandle(Ptr) ProbeForWriteGenericType(Ptr, HANDLE)
#define ProbeForWriteLangid(Ptr) ProbeForWriteGenericType(Ptr, LANGID)
#define ProbeForReadGenericType(Ptr, Type, Default) \
(((ULONG_PTR)(Ptr) + sizeof(Type) - 1 < (ULONG_PTR)(Ptr) || \
(ULONG_PTR)(Ptr) + sizeof(Type) - 1 >= (ULONG_PTR)MmUserProbeAddress) ? \
ExRaiseStatus (STATUS_ACCESS_VIOLATION), Default : \
*(volatile Type *)(Ptr))
#define ProbeForReadUchar(Ptr) ProbeForReadGenericType(Ptr, UCHAR, 0)
#define ProbeForReadChar(Ptr) ProbeForReadGenericType(Ptr, CHAR, 0)
#define ProbeForReadUshort(Ptr) ProbeForReadGenericType(Ptr, USHORT, 0)
#define ProbeForReadShort(Ptr) ProbeForReadGenericType(Ptr, SHORT, 0)
#define ProbeForReadUlong(Ptr) ProbeForReadGenericType(Ptr, ULONG, 0)
#define ProbeForReadLong(Ptr) ProbeForReadGenericType(Ptr, LONG, 0)
#define ProbeForReadUint(Ptr) ProbeForReadGenericType(Ptr, UINT, 0)
#define ProbeForReadInt(Ptr) ProbeForReadGenericType(Ptr, INT, 0)
#define ProbeForReadUlonglong(Ptr) ProbeForReadGenericType(Ptr, ULONGLONG, 0)
#define ProbeForReadLonglong(Ptr) ProbeForReadGenericType(Ptr, LONGLONG, 0)
#define ProbeForReadPointer(Ptr) ProbeForReadGenericType(Ptr, PVOID, NULL)
#define ProbeForReadHandle(Ptr) ProbeForReadGenericType(Ptr, HANDLE, NULL)
#define ProbeForReadLangid(Ptr) ProbeForReadGenericType(Ptr, LANGID, 0)
#endif
/*
*
*/