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274 lines
7.9 KiB
C
274 lines
7.9 KiB
C
/*
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* PROJECT: ReactOS kernel-mode tests
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* LICENSE: LGPLv2+ - See COPYING.LIB in the top level directory
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* PURPOSE: Kernel-Mode Test Suite Pools test routines KM-Test
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* PROGRAMMER: Aleksey Bragin <aleksey@reactos.org>
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*/
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#include <kmt_test.h>
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#define NDEBUG
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#include <debug.h>
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#define TAG_POOLTEST 'tstP'
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#define BASE_POOL_TYPE_MASK 1
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#define QUOTA_POOL_MASK 8
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static
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LONG
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GetRefCount(
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_In_ PVOID Object)
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{
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POBJECT_HEADER Header = OBJECT_TO_OBJECT_HEADER(Object);
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return Header->PointerCount;
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}
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static VOID PoolsTest(VOID)
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{
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PVOID Ptr;
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ULONG AllocSize, i, AllocNumber;
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PVOID *Allocs;
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// Stress-test nonpaged pool
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for (i=1; i<10000; i++)
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{
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// make up some increasing, a bit irregular size
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AllocSize = i*10;
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if (i % 10)
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AllocSize++;
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if (i % 25)
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AllocSize += 13;
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// start with non-paged pool
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Ptr = ExAllocatePoolWithTag(NonPagedPool, AllocSize, TAG_POOLTEST);
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// it may fail due to no-memory condition
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if (!Ptr) break;
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// try to fully fill it
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RtlFillMemory(Ptr, AllocSize, 0xAB);
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// free it
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ExFreePoolWithTag(Ptr, TAG_POOLTEST);
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}
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// now paged one
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for (i=1; i<10000; i++)
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{
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// make up some increasing, a bit irregular size
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AllocSize = i*50;
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if (i % 10)
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AllocSize++;
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if (i % 25)
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AllocSize += 13;
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// start with non-paged pool
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Ptr = ExAllocatePoolWithTag(PagedPool, AllocSize, TAG_POOLTEST);
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// it may fail due to no-memory condition
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if (!Ptr) break;
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// try to fully fill it
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RtlFillMemory(Ptr, AllocSize, 0xAB);
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// free it
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ExFreePoolWithTag(Ptr, TAG_POOLTEST);
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}
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// test super-big allocations
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/*AllocSize = 2UL * 1024 * 1024 * 1024;
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Ptr = ExAllocatePoolWithTag(NonPagedPool, AllocSize, TAG_POOLTEST);
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ok(Ptr == NULL, "Allocating 2Gb of nonpaged pool should fail\n");
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Ptr = ExAllocatePoolWithTag(PagedPool, AllocSize, TAG_POOLTEST);
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ok(Ptr == NULL, "Allocating 2Gb of paged pool should fail\n");*/
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// now test allocating lots of small/medium blocks
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AllocNumber = 100000;
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Allocs = ExAllocatePoolWithTag(PagedPool, sizeof(*Allocs) * AllocNumber, TAG_POOLTEST);
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// alloc blocks
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for (i=0; i<AllocNumber; i++)
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{
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AllocSize = 42;
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Allocs[i] = ExAllocatePoolWithTag(NonPagedPool, AllocSize, TAG_POOLTEST);
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}
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// now free them
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for (i=0; i<AllocNumber; i++)
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{
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ExFreePoolWithTag(Allocs[i], TAG_POOLTEST);
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}
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ExFreePoolWithTag(Allocs, TAG_POOLTEST);
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}
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static VOID PoolsCorruption(VOID)
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{
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PULONG Ptr;
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ULONG AllocSize;
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// start with non-paged pool
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AllocSize = 4096 + 0x10;
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Ptr = ExAllocatePoolWithTag(NonPagedPool, AllocSize, TAG_POOLTEST);
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// touch all bytes, it shouldn't cause an exception
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RtlZeroMemory(Ptr, AllocSize);
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/* TODO: These fail because accessing invalid memory doesn't necessarily
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cause an access violation */
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#ifdef THIS_DOESNT_WORK
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// test buffer overrun, right after our allocation ends
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_SEH2_TRY
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{
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TestPtr = (PULONG)((PUCHAR)Ptr + AllocSize);
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//Ptr[4] = 0xd33dbeef;
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*TestPtr = 0xd33dbeef;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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/* Get the status */
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Status = _SEH2_GetExceptionCode();
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} _SEH2_END;
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ok(Status == STATUS_ACCESS_VIOLATION, "Exception should occur, but got Status 0x%08lX\n", Status);
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// test overrun in a distant byte range, but within 4096KB
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_SEH2_TRY
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{
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Ptr[2020] = 0xdeadb33f;
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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/* Get the status */
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Status = _SEH2_GetExceptionCode();
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} _SEH2_END;
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ok(Status == STATUS_ACCESS_VIOLATION, "Exception should occur, but got Status 0x%08lX\n", Status);
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#endif
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// free the pool
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ExFreePoolWithTag(Ptr, TAG_POOLTEST);
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}
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static
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VOID
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TestPoolTags(VOID)
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{
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PVOID Memory;
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Memory = ExAllocatePoolWithTag(PagedPool, 8, 'MyTa');
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ok_eq_tag(KmtGetPoolTag(Memory), 'MyTa');
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ExFreePoolWithTag(Memory, 'MyTa');
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Memory = ExAllocatePoolWithTag(PagedPool, PAGE_SIZE, 'MyTa');
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ok_eq_tag(KmtGetPoolTag(Memory), 'TooL');
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ExFreePoolWithTag(Memory, 'MyTa');
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Memory = ExAllocatePoolWithTag(PagedPool, PAGE_SIZE - 3 * sizeof(PVOID), 'MyTa');
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ok_eq_tag(KmtGetPoolTag(Memory), 'TooL');
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ExFreePoolWithTag(Memory, 'MyTa');
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Memory = ExAllocatePoolWithTag(PagedPool, PAGE_SIZE - 4 * sizeof(PVOID) + 1, 'MyTa');
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ok_eq_tag(KmtGetPoolTag(Memory), 'TooL');
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ExFreePoolWithTag(Memory, 'MyTa');
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Memory = ExAllocatePoolWithTag(PagedPool, PAGE_SIZE - 4 * sizeof(PVOID), 'MyTa');
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ok_eq_tag(KmtGetPoolTag(Memory), 'MyTa');
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ExFreePoolWithTag(Memory, 'MyTa');
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}
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static
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VOID
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TestPoolQuota(VOID)
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{
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PEPROCESS Process = PsGetCurrentProcess();
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PEPROCESS StoredProcess;
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PVOID Memory;
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LONG InitialRefCount;
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LONG RefCount;
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USHORT PoolType;
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InitialRefCount = GetRefCount(Process);
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/* We get some memory from this function, and it's properly aligned.
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* Also, it takes a reference to the process, and releases it on free */
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Memory = ExAllocatePoolWithQuotaTag(PagedPool | POOL_QUOTA_FAIL_INSTEAD_OF_RAISE,
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sizeof(LIST_ENTRY),
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'tQmK');
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ok(Memory != NULL, "ExAllocatePoolWithQuotaTag returned NULL\n");
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if (!skip(Memory != NULL, "No memory\n"))
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{
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ok((ULONG_PTR)Memory % sizeof(LIST_ENTRY) == 0,
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"Allocation %p is badly aligned\n",
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Memory);
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RefCount = GetRefCount(Process);
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ok_eq_long(RefCount, InitialRefCount + 1);
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/* A pointer to the process is found right before the next pool header */
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StoredProcess = ((PVOID *)((ULONG_PTR)Memory + 2 * sizeof(LIST_ENTRY)))[-1];
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ok_eq_pointer(StoredProcess, Process);
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/* Pool type should have QUOTA_POOL_MASK set */
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PoolType = KmtGetPoolType(Memory);
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ok(PoolType != 0, "PoolType is 0\n");
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PoolType--;
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ok(PoolType & QUOTA_POOL_MASK, "PoolType = %x\n", PoolType);
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ok((PoolType & BASE_POOL_TYPE_MASK) == PagedPool, "PoolType = %x\n", PoolType);
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ExFreePoolWithTag(Memory, 'tQmK');
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RefCount = GetRefCount(Process);
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ok_eq_long(RefCount, InitialRefCount);
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}
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/* Large allocations are page-aligned, don't reference the process */
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Memory = ExAllocatePoolWithQuotaTag(PagedPool | POOL_QUOTA_FAIL_INSTEAD_OF_RAISE,
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PAGE_SIZE,
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'tQmK');
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ok(Memory != NULL, "ExAllocatePoolWithQuotaTag returned NULL\n");
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if (!skip(Memory != NULL, "No memory\n"))
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{
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ok((ULONG_PTR)Memory % PAGE_SIZE == 0,
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"Allocation %p is badly aligned\n",
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Memory);
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RefCount = GetRefCount(Process);
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ok_eq_long(RefCount, InitialRefCount);
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ExFreePoolWithTag(Memory, 'tQmK');
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RefCount = GetRefCount(Process);
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ok_eq_long(RefCount, InitialRefCount);
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}
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/* Function raises by default */
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KmtStartSeh()
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Memory = ExAllocatePoolWithQuotaTag(PagedPool,
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0x7FFFFFFF,
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'tQmK');
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if (Memory)
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ExFreePoolWithTag(Memory, 'tQmK');
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KmtEndSeh(STATUS_INSUFFICIENT_RESOURCES);
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/* Function returns NULL with POOL_QUOTA_FAIL_INSTEAD_OF_RAISE */
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KmtStartSeh()
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Memory = ExAllocatePoolWithQuotaTag(PagedPool | POOL_QUOTA_FAIL_INSTEAD_OF_RAISE,
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0x7FFFFFFF,
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'tQmK');
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ok(Memory == NULL, "Successfully got 2GB block: %p\n", Memory);
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if (Memory)
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ExFreePoolWithTag(Memory, 'tQmK');
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KmtEndSeh(STATUS_SUCCESS);
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}
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START_TEST(ExPools)
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{
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PoolsTest();
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PoolsCorruption();
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TestPoolTags();
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TestPoolQuota();
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}
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