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265497886f
- Add a test showing that memory content is still available after changing protection to PAGE_NOACCESS svn path=/trunk/; revision=63678
121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* PROJECT: ReactOS API Tests
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* LICENSE: GPLv2+ - See COPYING in the top level directory
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* PURPOSE: Test for the NtProtectVirtualMemory API
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*/
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#include <apitest.h>
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#define WIN32_NO_STATUS
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#include <ndk/rtlfuncs.h>
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#include <ndk/mmfuncs.h>
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START_TEST(NtProtectVirtualMemory)
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{
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ULONG* allocationStart = NULL;
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NTSTATUS status;
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SIZE_T allocationSize;
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ULONG oldProtection;
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/* Reserve a page */
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allocationSize = PAGE_SIZE;
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status = NtAllocateVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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0,
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&allocationSize,
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MEM_RESERVE,
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PAGE_NOACCESS);
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ok(NT_SUCCESS(status), "Reserving memory failed\n");
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/* Commit the page (RW) */
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status = NtAllocateVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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0,
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&allocationSize,
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MEM_COMMIT,
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PAGE_READWRITE);
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ok(NT_SUCCESS(status), "Commiting memory failed\n");
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/* Try writing it */
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StartSeh()
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{
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*allocationStart = 0xFF;
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} EndSeh(STATUS_SUCCESS);
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/* Try reading it */
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StartSeh()
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{
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ok(*allocationStart == 0xFF, "Memory was not written\n");
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} EndSeh(STATUS_SUCCESS);
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/* Set it as read only */
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status = NtProtectVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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&allocationSize,
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PAGE_READONLY,
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&oldProtection);
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ok(NT_SUCCESS(status), "NtProtectVirtualMemory failed.\n");
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ok(oldProtection == PAGE_READWRITE, "Expected PAGE_READWRITE, got %08lx.\n", oldProtection);
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/* Try writing it */
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StartSeh()
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{
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*allocationStart = 0xAA;
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} EndSeh(STATUS_ACCESS_VIOLATION);
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/* Try reading it */
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StartSeh()
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{
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ok(*allocationStart == 0xFF, "read-only memory were changed.\n");
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} EndSeh(STATUS_SUCCESS);
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/* Set it as no access */
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status = NtProtectVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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&allocationSize,
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PAGE_NOACCESS,
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&oldProtection);
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ok(NT_SUCCESS(status), "NtProtectVirtualMemory failed.\n");
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ok(oldProtection == PAGE_READONLY, "Expected PAGE_READONLY, got %08lx.\n", oldProtection);
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/* Try writing it */
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StartSeh()
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{
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*allocationStart = 0xAA;
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} EndSeh(STATUS_ACCESS_VIOLATION);
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/* Try reading it */
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StartSeh()
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{
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ok(*allocationStart == 0, "Test should not go as far as this.\n");
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} EndSeh(STATUS_ACCESS_VIOLATION);
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/* Set it as readable again */
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status = NtProtectVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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&allocationSize,
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PAGE_READONLY,
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&oldProtection);
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ok(NT_SUCCESS(status), "NtProtectVirtualMemory failed.\n");
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ok(oldProtection == PAGE_NOACCESS, "Expected PAGE_READONLY, got %08lx.\n", oldProtection);
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/* Try writing it */
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StartSeh()
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{
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*allocationStart = 0xAA;
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} EndSeh(STATUS_ACCESS_VIOLATION);
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/* Try reading it */
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StartSeh()
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{
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ok(*allocationStart == 0xFF, "Memory content was not preserved.\n");
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} EndSeh(STATUS_SUCCESS);
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/* Free memory */
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status = NtFreeVirtualMemory(NtCurrentProcess(),
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(void**)&allocationStart,
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&allocationSize,
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MEM_RELEASE);
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ok(NT_SUCCESS(status), "Failed freeing memory.\n");
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}
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