reactos/modules/rostests/kmtests/ntos_cc/CcMapData_drv.c

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/*
* PROJECT: ReactOS kernel-mode tests
* LICENSE: LGPLv2.1+ - See COPYING.LIB in the top level directory
* PURPOSE: Test driver for CcMapData function
* PROGRAMMER: Pierre Schweitzer <pierre@reactos.org>
*/
#include <kmt_test.h>
#define NDEBUG
#include <debug.h>
#define IOCTL_START_TEST 1
#define IOCTL_FINISH_TEST 2
typedef struct _TEST_FCB
{
FSRTL_ADVANCED_FCB_HEADER Header;
SECTION_OBJECT_POINTERS SectionObjectPointers;
FAST_MUTEX HeaderMutex;
} TEST_FCB, *PTEST_FCB;
typedef struct _TEST_CONTEXT
{
PVOID Bcb;
PVOID Buffer;
ULONG Length;
} TEST_CONTEXT, *PTEST_CONTEXT;
static ULONG TestTestId = -1;
static PFILE_OBJECT TestFileObject;
static PDEVICE_OBJECT TestDeviceObject;
static KMT_IRP_HANDLER TestIrpHandler;
static KMT_MESSAGE_HANDLER TestMessageHandler;
NTSTATUS
TestEntry(
_In_ PDRIVER_OBJECT DriverObject,
_In_ PCUNICODE_STRING RegistryPath,
_Out_ PCWSTR *DeviceName,
_Inout_ INT *Flags)
{
NTSTATUS Status = STATUS_SUCCESS;
PAGED_CODE();
UNREFERENCED_PARAMETER(RegistryPath);
*DeviceName = L"CcMapData";
*Flags = TESTENTRY_NO_EXCLUSIVE_DEVICE |
TESTENTRY_BUFFERED_IO_DEVICE |
TESTENTRY_NO_READONLY_DEVICE;
KmtRegisterIrpHandler(IRP_MJ_READ, NULL, TestIrpHandler);
KmtRegisterMessageHandler(0, NULL, TestMessageHandler);
return Status;
}
VOID
TestUnload(
_In_ PDRIVER_OBJECT DriverObject)
{
PAGED_CODE();
}
BOOLEAN
NTAPI
AcquireForLazyWrite(
_In_ PVOID Context,
_In_ BOOLEAN Wait)
{
return TRUE;
}
VOID
NTAPI
ReleaseFromLazyWrite(
_In_ PVOID Context)
{
return;
}
BOOLEAN
NTAPI
AcquireForReadAhead(
_In_ PVOID Context,
_In_ BOOLEAN Wait)
{
return TRUE;
}
VOID
NTAPI
ReleaseFromReadAhead(
_In_ PVOID Context)
{
return;
}
static CACHE_MANAGER_CALLBACKS Callbacks = {
AcquireForLazyWrite,
ReleaseFromLazyWrite,
AcquireForReadAhead,
ReleaseFromReadAhead,
};
static CC_FILE_SIZES FileSizes = {
2018-03-10 17:51:21 +00:00
RTL_CONSTANT_LARGE_INTEGER((LONGLONG)0x4000), // .AllocationSize
RTL_CONSTANT_LARGE_INTEGER((LONGLONG)0x4000), // .FileSize
RTL_CONSTANT_LARGE_INTEGER((LONGLONG)0x4000) // .ValidDataLength
};
static
PVOID
MapAndLockUserBuffer(
_In_ _Out_ PIRP Irp,
_In_ ULONG BufferLength)
{
PMDL Mdl;
if (Irp->MdlAddress == NULL)
{
Mdl = IoAllocateMdl(Irp->UserBuffer, BufferLength, FALSE, FALSE, Irp);
if (Mdl == NULL)
{
return NULL;
}
_SEH2_TRY
{
MmProbeAndLockPages(Mdl, Irp->RequestorMode, IoWriteAccess);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
IoFreeMdl(Mdl);
Irp->MdlAddress = NULL;
_SEH2_YIELD(return NULL);
}
_SEH2_END;
}
return MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority);
}
static
VOID
NTAPI
MapInAnotherThread(IN PVOID Context)
{
BOOLEAN Ret;
PULONG Buffer;
PVOID Bcb;
LARGE_INTEGER Offset;
PTEST_CONTEXT TestContext;
ok(TestFileObject != NULL, "Called in invalid context!\n");
ok_eq_ulong(TestTestId, 3);
TestContext = Context;
ok(TestContext != NULL, "Called in invalid context!\n");
ok(TestContext->Bcb != NULL, "Called in invalid context!\n");
ok(TestContext->Buffer != NULL, "Called in invalid context!\n");
ok(TestContext->Length != 0, "Called in invalid context!\n");
Ret = FALSE;
Offset.QuadPart = 0x1000;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, TestContext->Length, MAP_WAIT, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcMapData failed\n"))
{
ok_eq_pointer(Bcb, TestContext->Bcb);
ok_eq_pointer(Buffer, TestContext->Buffer);
CcUnpinData(Bcb);
}
KmtStartSeh();
Ret = CcPinRead(TestFileObject, &Offset, TestContext->Length, 0, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcPinRead failed\n"))
{
ok(Bcb != TestContext->Bcb, "Returned same BCB!\n");
ok_eq_pointer(Buffer, TestContext->Buffer);
CcUnpinData(Bcb);
}
KmtStartSeh();
Ret = CcPinRead(TestFileObject, &Offset, TestContext->Length, PIN_IF_BCB, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
ok(Ret == FALSE, "CcPinRead succeed\n");
if (Ret)
{
CcUnpinData(Bcb);
}
KmtStartSeh();
Ret = CcPinRead(TestFileObject, &Offset, TestContext->Length, PIN_EXCLUSIVE, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcPinRead failed\n"))
{
ok(Bcb != TestContext->Bcb, "Returned same BCB!\n");
ok_eq_pointer(Buffer, TestContext->Buffer);
CcUnpinData(Bcb);
}
Offset.QuadPart = 0x1500;
TestContext->Length -= 0x500;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, TestContext->Length, MAP_WAIT, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcMapData failed\n"))
{
ok_eq_pointer(Bcb, TestContext->Bcb);
ok_eq_pointer(Buffer, (PVOID)((ULONG_PTR)TestContext->Buffer + 0x500));
CcUnpinData(Bcb);
}
return;
}
static
VOID
PerformTest(
ULONG TestId,
PDEVICE_OBJECT DeviceObject)
{
PVOID Bcb;
BOOLEAN Ret;
PULONG Buffer;
PTEST_FCB Fcb;
LARGE_INTEGER Offset;
ok_eq_pointer(TestFileObject, NULL);
ok_eq_pointer(TestDeviceObject, NULL);
ok_eq_ulong(TestTestId, -1);
TestDeviceObject = DeviceObject;
TestTestId = TestId;
TestFileObject = IoCreateStreamFileObject(NULL, DeviceObject);
if (!skip(TestFileObject != NULL, "Failed to allocate FO\n"))
{
Fcb = ExAllocatePool(NonPagedPool, sizeof(TEST_FCB));
if (!skip(Fcb != NULL, "ExAllocatePool failed\n"))
{
RtlZeroMemory(Fcb, sizeof(TEST_FCB));
ExInitializeFastMutex(&Fcb->HeaderMutex);
FsRtlSetupAdvancedHeader(&Fcb->Header, &Fcb->HeaderMutex);
TestFileObject->FsContext = Fcb;
TestFileObject->SectionObjectPointer = &Fcb->SectionObjectPointers;
KmtStartSeh();
CcInitializeCacheMap(TestFileObject, &FileSizes, FALSE, &Callbacks, NULL);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(CcIsFileCached(TestFileObject) == TRUE, "CcInitializeCacheMap failed\n"))
{
if (TestId < 3)
{
Ret = FALSE;
Offset.QuadPart = TestId * 0x1000;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, FileSizes.FileSize.QuadPart - Offset.QuadPart, MAP_WAIT, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcMapData failed\n"))
{
ok_eq_ulong(Buffer[(0x3000 - TestId * 0x1000) / sizeof(ULONG)], 0xDEADBABE);
CcUnpinData(Bcb);
}
}
else if (TestId == 3)
{
PTEST_CONTEXT TestContext;
TestContext = ExAllocatePool(NonPagedPool, sizeof(TEST_CONTEXT));
if (!skip(TestContext != NULL, "ExAllocatePool failed\n"))
{
Ret = FALSE;
Offset.QuadPart = 0x1000;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, FileSizes.FileSize.QuadPart - Offset.QuadPart, MAP_WAIT, &TestContext->Bcb, &TestContext->Buffer);
KmtEndSeh(STATUS_SUCCESS);
if (!skip(Ret == TRUE, "CcMapData failed\n"))
{
PKTHREAD ThreadHandle;
#ifdef _X86_
/* FIXME: Should be fixed, will fail under certains conditions */
ok(TestContext->Buffer > (PVOID)0xC1000000 && TestContext->Buffer < (PVOID)0xDCFFFFFF,
"Buffer %p not mapped in system space\n", TestContext->Buffer);
#else
#ifdef _M_AMD64
ok(TestContext->Buffer > (PVOID)0xFFFFF98000000000 && TestContext->Buffer < (PVOID)0xFFFFFA8000000000,
"Buffer %p not mapped in system space\n", TestContext->Buffer);
#else
skip(FALSE, "System space mapping not defined\n");
#endif
#endif
TestContext->Length = FileSizes.FileSize.QuadPart - Offset.QuadPart;
ThreadHandle = KmtStartThread(MapInAnotherThread, TestContext);
KmtFinishThread(ThreadHandle, NULL);
TestContext->Length = FileSizes.FileSize.QuadPart - 2 * Offset.QuadPart;
ThreadHandle = KmtStartThread(MapInAnotherThread, TestContext);
KmtFinishThread(ThreadHandle, NULL);
CcUnpinData(TestContext->Bcb);
}
ExFreePool(TestContext);
}
}
else if (TestId == 4)
{
/* Map after EOF */
Ret = FALSE;
Offset.QuadPart = FileSizes.FileSize.QuadPart + 0x1000;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, 0x1000, 0, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
ok(Ret == FALSE, "CcMapData succeed\n");
if (Ret)
{
CcUnpinData(Bcb);
}
/* Map a VACB after EOF */
Ret = FALSE;
Offset.QuadPart = FileSizes.FileSize.QuadPart + 0x1000 + VACB_MAPPING_GRANULARITY;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, 0x1000, 0, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_ACCESS_VIOLATION);
ok(Ret == FALSE, "CcMapData succeed\n");
if (Ret)
{
CcUnpinData(Bcb);
}
/* Map more than a VACB */
Ret = FALSE;
Offset.QuadPart = 0x0;
KmtStartSeh();
Ret = CcMapData(TestFileObject, &Offset, 0x1000 + VACB_MAPPING_GRANULARITY, 0, &Bcb, (PVOID *)&Buffer);
KmtEndSeh(STATUS_SUCCESS);
ok(Ret == FALSE, "CcMapData succeed\n");
if (Ret)
{
CcUnpinData(Bcb);
}
}
}
}
}
}
static
VOID
CleanupTest(
ULONG TestId,
PDEVICE_OBJECT DeviceObject)
{
LARGE_INTEGER Zero = RTL_CONSTANT_LARGE_INTEGER(0LL);
CACHE_UNINITIALIZE_EVENT CacheUninitEvent;
ok_eq_pointer(TestDeviceObject, DeviceObject);
ok_eq_ulong(TestTestId, TestId);
if (!skip(TestFileObject != NULL, "No test FO\n"))
{
if (CcIsFileCached(TestFileObject))
{
KeInitializeEvent(&CacheUninitEvent.Event, NotificationEvent, FALSE);
CcUninitializeCacheMap(TestFileObject, &Zero, &CacheUninitEvent);
KeWaitForSingleObject(&CacheUninitEvent.Event, Executive, KernelMode, FALSE, NULL);
}
if (TestFileObject->FsContext != NULL)
{
ExFreePool(TestFileObject->FsContext);
TestFileObject->FsContext = NULL;
TestFileObject->SectionObjectPointer = NULL;
}
ObDereferenceObject(TestFileObject);
}
TestFileObject = NULL;
TestDeviceObject = NULL;
TestTestId = -1;
}
static
NTSTATUS
TestMessageHandler(
_In_ PDEVICE_OBJECT DeviceObject,
_In_ ULONG ControlCode,
_In_opt_ PVOID Buffer,
_In_ SIZE_T InLength,
_Inout_ PSIZE_T OutLength)
{
NTSTATUS Status = STATUS_SUCCESS;
FsRtlEnterFileSystem();
switch (ControlCode)
{
case IOCTL_START_TEST:
ok_eq_ulong((ULONG)InLength, sizeof(ULONG));
PerformTest(*(PULONG)Buffer, DeviceObject);
break;
case IOCTL_FINISH_TEST:
ok_eq_ulong((ULONG)InLength, sizeof(ULONG));
CleanupTest(*(PULONG)Buffer, DeviceObject);
break;
default:
Status = STATUS_NOT_IMPLEMENTED;
break;
}
FsRtlExitFileSystem();
return Status;
}
static
NTSTATUS
TestIrpHandler(
_In_ PDEVICE_OBJECT DeviceObject,
_In_ PIRP Irp,
_In_ PIO_STACK_LOCATION IoStack)
{
NTSTATUS Status;
PAGED_CODE();
DPRINT("IRP %x/%x\n", IoStack->MajorFunction, IoStack->MinorFunction);
ASSERT(IoStack->MajorFunction == IRP_MJ_READ);
FsRtlEnterFileSystem();
Status = STATUS_NOT_SUPPORTED;
Irp->IoStatus.Information = 0;
if (IoStack->MajorFunction == IRP_MJ_READ)
{
PMDL Mdl;
ULONG Length;
PVOID Buffer;
LARGE_INTEGER Offset;
Offset = IoStack->Parameters.Read.ByteOffset;
Length = IoStack->Parameters.Read.Length;
ok_eq_pointer(DeviceObject, TestDeviceObject);
ok_eq_pointer(IoStack->FileObject, TestFileObject);
ok(FlagOn(Irp->Flags, IRP_NOCACHE), "Not coming from Cc\n");
ok_irql(APC_LEVEL);
ok((Offset.QuadPart % PAGE_SIZE == 0 || Offset.QuadPart == 0), "Offset is not aligned: %I64i\n", Offset.QuadPart);
ok(Length % PAGE_SIZE == 0, "Length is not aligned: %I64i\n", Length);
ok(Irp->AssociatedIrp.SystemBuffer == NULL, "A SystemBuffer was allocated!\n");
Buffer = MapAndLockUserBuffer(Irp, Length);
ok(Buffer != NULL, "Null pointer!\n");
RtlFillMemory(Buffer, Length, 0xBA);
Status = STATUS_SUCCESS;
if (Offset.QuadPart <= 0x3000 && Offset.QuadPart + Length > 0x3000)
{
*(PULONG)((ULONG_PTR)Buffer + (ULONG_PTR)(0x3000 - Offset.QuadPart)) = 0xDEADBABE;
}
Mdl = Irp->MdlAddress;
ok(Mdl != NULL, "Null pointer for MDL!\n");
ok((Mdl->MdlFlags & MDL_PAGES_LOCKED) != 0, "MDL not locked\n");
ok((Mdl->MdlFlags & MDL_SOURCE_IS_NONPAGED_POOL) == 0, "MDL from non paged\n");
ok((Mdl->MdlFlags & MDL_IO_PAGE_READ) != 0, "Non paging IO\n");
ok((Irp->Flags & IRP_PAGING_IO) != 0, "Non paging IO\n");
Irp->IoStatus.Information = Length;
}
if (Status == STATUS_PENDING)
{
IoMarkIrpPending(Irp);
IoCompleteRequest(Irp, IO_NO_INCREMENT);
Status = STATUS_PENDING;
}
else
{
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
}
FsRtlExitFileSystem();
return Status;
}