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63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/*
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* PROJECT: ReactOS kernel-mode tests
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* LICENSE: LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
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* PURPOSE: Kernel-Mode Test Suite Guarded Memory example test
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* COPYRIGHT: Copyright 2011-2018 Thomas Faber <thomas.faber@reactos.org>
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*/
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#include <kmt_test.h>
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#ifdef __GNUC__
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#pragma GCC diagnostic ignored "-Wnonnull"
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#endif /* defined __GNUC__ */
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START_TEST(GuardedMemory)
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{
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NTSTATUS Status;
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SIZE_T Size = 123;
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PCHAR *Buffer;
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/* access some invalid memory to test SEH */
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Status = STATUS_SUCCESS;
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_SEH2_TRY
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{
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RtlFillMemory(NULL, 1, 0);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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} _SEH2_END;
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ok_eq_hex(Status, STATUS_ACCESS_VIOLATION);
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/* get guarded mem */
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Buffer = KmtAllocateGuarded(Size);
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if (skip(Buffer != NULL, "Failed to allocate guarded memory\n"))
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return;
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/* access to guarded mem should be fine */
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Status = STATUS_SUCCESS;
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_SEH2_TRY
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{
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RtlFillMemory(Buffer, Size, 0);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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} _SEH2_END;
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ok_eq_hex(Status, STATUS_SUCCESS);
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/* access one byte behind guarded mem must cause an access violation! */
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Status = STATUS_SUCCESS;
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_SEH2_TRY
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{
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RtlFillMemory(Buffer + Size, 1, 0);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Status = _SEH2_GetExceptionCode();
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} _SEH2_END;
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ok_eq_hex(Status, STATUS_ACCESS_VIOLATION);
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KmtFreeGuarded(Buffer);
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}
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