mirror of
https://github.com/reactos/reactos.git
synced 2024-11-05 06:09:58 +00:00
331 lines
9.5 KiB
C
331 lines
9.5 KiB
C
/*
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* PROJECT: ReactOS kernel-mode tests
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* LICENSE: LGPLv2.1+ - See COPYING.LIB in the top level directory
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* PURPOSE: Test driver for CcCopyRead function
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* PROGRAMMER: Pierre Schweitzer <pierre@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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typedef struct _TEST_FCB
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{
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FSRTL_ADVANCED_FCB_HEADER Header;
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SECTION_OBJECT_POINTERS SectionObjectPointers;
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FAST_MUTEX HeaderMutex;
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} TEST_FCB, *PTEST_FCB;
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static PFILE_OBJECT TestFileObject;
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static PDEVICE_OBJECT TestDeviceObject;
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static KMT_IRP_HANDLER TestIrpHandler;
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static FAST_IO_DISPATCH TestFastIoDispatch;
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static
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BOOLEAN
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NTAPI
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FastIoRead(
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_In_ PFILE_OBJECT FileObject,
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_In_ PLARGE_INTEGER FileOffset,
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_In_ ULONG Length,
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_In_ BOOLEAN Wait,
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_In_ ULONG LockKey,
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_Out_ PVOID Buffer,
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_Out_ PIO_STATUS_BLOCK IoStatus,
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_In_ PDEVICE_OBJECT DeviceObject)
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{
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IoStatus->Status = STATUS_NOT_SUPPORTED;
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return FALSE;
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}
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NTSTATUS
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TestEntry(
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_In_ PDRIVER_OBJECT DriverObject,
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_In_ PCUNICODE_STRING RegistryPath,
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_Out_ PCWSTR *DeviceName,
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_Inout_ INT *Flags)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PAGED_CODE();
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UNREFERENCED_PARAMETER(RegistryPath);
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*DeviceName = L"CcCopyRead";
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*Flags = TESTENTRY_NO_EXCLUSIVE_DEVICE |
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TESTENTRY_BUFFERED_IO_DEVICE |
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TESTENTRY_NO_READONLY_DEVICE;
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KmtRegisterIrpHandler(IRP_MJ_CLEANUP, NULL, TestIrpHandler);
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KmtRegisterIrpHandler(IRP_MJ_CREATE, NULL, TestIrpHandler);
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KmtRegisterIrpHandler(IRP_MJ_READ, NULL, TestIrpHandler);
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TestFastIoDispatch.FastIoRead = FastIoRead;
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DriverObject->FastIoDispatch = &TestFastIoDispatch;
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return Status;
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}
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VOID
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TestUnload(
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_In_ PDRIVER_OBJECT DriverObject)
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{
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PAGED_CODE();
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}
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BOOLEAN
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NTAPI
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AcquireForLazyWrite(
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_In_ PVOID Context,
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_In_ BOOLEAN Wait)
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{
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return TRUE;
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}
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VOID
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NTAPI
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ReleaseFromLazyWrite(
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_In_ PVOID Context)
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{
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return;
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}
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BOOLEAN
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NTAPI
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AcquireForReadAhead(
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_In_ PVOID Context,
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_In_ BOOLEAN Wait)
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{
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return TRUE;
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}
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VOID
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NTAPI
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ReleaseFromReadAhead(
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_In_ PVOID Context)
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{
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return;
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}
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static CACHE_MANAGER_CALLBACKS Callbacks = {
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AcquireForLazyWrite,
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ReleaseFromLazyWrite,
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AcquireForReadAhead,
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ReleaseFromReadAhead,
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};
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static
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PVOID
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MapAndLockUserBuffer(
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_In_ _Out_ PIRP Irp,
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_In_ ULONG BufferLength)
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{
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PMDL Mdl;
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if (Irp->MdlAddress == NULL)
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{
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Mdl = IoAllocateMdl(Irp->UserBuffer, BufferLength, FALSE, FALSE, Irp);
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if (Mdl == NULL)
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{
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return NULL;
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}
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_SEH2_TRY
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{
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MmProbeAndLockPages(Mdl, Irp->RequestorMode, IoWriteAccess);
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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IoFreeMdl(Mdl);
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Irp->MdlAddress = NULL;
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_SEH2_YIELD(return NULL);
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}
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_SEH2_END;
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}
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return MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority);
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}
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static
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NTSTATUS
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TestIrpHandler(
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_In_ PDEVICE_OBJECT DeviceObject,
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_In_ PIRP Irp,
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_In_ PIO_STACK_LOCATION IoStack)
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{
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NTSTATUS Status;
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PTEST_FCB Fcb;
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CACHE_UNINITIALIZE_EVENT CacheUninitEvent;
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PAGED_CODE();
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DPRINT("IRP %x/%x\n", IoStack->MajorFunction, IoStack->MinorFunction);
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ASSERT(IoStack->MajorFunction == IRP_MJ_CLEANUP ||
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IoStack->MajorFunction == IRP_MJ_CREATE ||
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IoStack->MajorFunction == IRP_MJ_READ);
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Status = STATUS_NOT_SUPPORTED;
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Irp->IoStatus.Information = 0;
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if (IoStack->MajorFunction == IRP_MJ_CREATE)
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{
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ok(KeGetCurrentIrql() == PASSIVE_LEVEL, "Wrong IRQL: %d\n", KeGetCurrentIrql());
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if (IoStack->FileObject->FileName.Length >= 2 * sizeof(WCHAR))
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{
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TestDeviceObject = DeviceObject;
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TestFileObject = IoStack->FileObject;
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}
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Fcb = ExAllocatePoolWithTag(NonPagedPool, sizeof(*Fcb), 'FwrI');
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RtlZeroMemory(Fcb, sizeof(*Fcb));
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ExInitializeFastMutex(&Fcb->HeaderMutex);
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FsRtlSetupAdvancedHeader(&Fcb->Header, &Fcb->HeaderMutex);
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if (IoStack->FileObject->FileName.Length >= 2 * sizeof(WCHAR) &&
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IoStack->FileObject->FileName.Buffer[1] == 'B')
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{
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Fcb->Header.AllocationSize.QuadPart = 1000000;
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Fcb->Header.FileSize.QuadPart = 1000000;
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Fcb->Header.ValidDataLength.QuadPart = 1000000;
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}
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else if (IoStack->FileObject->FileName.Length >= 2 * sizeof(WCHAR) &&
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IoStack->FileObject->FileName.Buffer[1] == 'S')
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{
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Fcb->Header.AllocationSize.QuadPart = 1004;
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Fcb->Header.FileSize.QuadPart = 1004;
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Fcb->Header.ValidDataLength.QuadPart = 1004;
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}
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else if (IoStack->FileObject->FileName.Length >= 2 * sizeof(WCHAR) &&
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IoStack->FileObject->FileName.Buffer[1] == 'R')
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{
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Fcb->Header.AllocationSize.QuadPart = 62;
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Fcb->Header.FileSize.QuadPart = 62;
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Fcb->Header.ValidDataLength.QuadPart = 62;
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}
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else
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{
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Fcb->Header.AllocationSize.QuadPart = 512;
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Fcb->Header.FileSize.QuadPart = 512;
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Fcb->Header.ValidDataLength.QuadPart = 512;
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}
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Fcb->Header.IsFastIoPossible = FastIoIsNotPossible;
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IoStack->FileObject->FsContext = Fcb;
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IoStack->FileObject->SectionObjectPointer = &Fcb->SectionObjectPointers;
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CcInitializeCacheMap(IoStack->FileObject,
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(PCC_FILE_SIZES)&Fcb->Header.AllocationSize,
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FALSE, &Callbacks, NULL);
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Irp->IoStatus.Information = FILE_OPENED;
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Status = STATUS_SUCCESS;
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}
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else if (IoStack->MajorFunction == IRP_MJ_READ)
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{
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BOOLEAN Ret;
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ULONG Length;
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PVOID Buffer;
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LARGE_INTEGER Offset;
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Offset = IoStack->Parameters.Read.ByteOffset;
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Length = IoStack->Parameters.Read.Length;
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Fcb = IoStack->FileObject->FsContext;
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ok_eq_pointer(DeviceObject, TestDeviceObject);
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ok_eq_pointer(IoStack->FileObject, TestFileObject);
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if (!FlagOn(Irp->Flags, IRP_NOCACHE))
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{
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ok(KeGetCurrentIrql() == PASSIVE_LEVEL, "Wrong IRQL: %d\n", KeGetCurrentIrql());
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ok(Offset.QuadPart % PAGE_SIZE != 0, "Offset is aligned: %I64i\n", Offset.QuadPart);
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ok(Length % PAGE_SIZE != 0, "Length is aligned: %I64i\n", Length);
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Buffer = Irp->AssociatedIrp.SystemBuffer;
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ok(Buffer != NULL, "Null pointer!\n");
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_SEH2_TRY
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{
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Ret = CcCopyRead(IoStack->FileObject, &Offset, Length, TRUE, Buffer,
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&Irp->IoStatus);
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ok_bool_true(Ret, "CcCopyRead");
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}
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_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
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{
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Irp->IoStatus.Status = _SEH2_GetExceptionCode();
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}
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_SEH2_END;
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Status = Irp->IoStatus.Status;
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if (NT_SUCCESS(Status))
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{
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if (Offset.QuadPart <= 1000LL && Offset.QuadPart + Length > 1000LL)
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{
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ok_eq_hex(*(PUSHORT)((ULONG_PTR)Buffer + (ULONG_PTR)(1000LL - Offset.QuadPart)), 0xFFFF);
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}
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else
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{
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ok_eq_hex(*(PUSHORT)Buffer, 0xBABA);
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}
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}
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}
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else
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{
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PMDL Mdl;
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ok(KeGetCurrentIrql() == APC_LEVEL, "Wrong IRQL: %d\n", KeGetCurrentIrql());
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ok((Offset.QuadPart % PAGE_SIZE == 0 || Offset.QuadPart == 0), "Offset is not aligned: %I64i\n", Offset.QuadPart);
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ok(Length % PAGE_SIZE == 0, "Length is not aligned: %I64i\n", Length);
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ok(Irp->AssociatedIrp.SystemBuffer == NULL, "A SystemBuffer was allocated!\n");
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Buffer = MapAndLockUserBuffer(Irp, Length);
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ok(Buffer != NULL, "Null pointer!\n");
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RtlFillMemory(Buffer, Length, 0xBA);
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Status = STATUS_SUCCESS;
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if (Offset.QuadPart <= 1000LL && Offset.QuadPart + Length > 1000LL)
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{
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*(PUSHORT)((ULONG_PTR)Buffer + (ULONG_PTR)(1000LL - Offset.QuadPart)) = 0xFFFF;
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}
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Mdl = Irp->MdlAddress;
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ok(Mdl != NULL, "Null pointer for MDL!\n");
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ok((Mdl->MdlFlags & MDL_PAGES_LOCKED) != 0, "MDL not locked\n");
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ok((Mdl->MdlFlags & MDL_SOURCE_IS_NONPAGED_POOL) == 0, "MDL from non paged\n");
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ok((Mdl->MdlFlags & MDL_IO_PAGE_READ) != 0, "Non paging IO\n");
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ok((Irp->Flags & IRP_PAGING_IO) != 0, "Non paging IO\n");
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}
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if (NT_SUCCESS(Status))
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{
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Irp->IoStatus.Information = Length;
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IoStack->FileObject->CurrentByteOffset.QuadPart = Offset.QuadPart + Length;
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}
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}
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else if (IoStack->MajorFunction == IRP_MJ_CLEANUP)
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{
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ok(KeGetCurrentIrql() == PASSIVE_LEVEL, "Wrong IRQL: %d\n", KeGetCurrentIrql());
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KeInitializeEvent(&CacheUninitEvent.Event, NotificationEvent, FALSE);
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CcUninitializeCacheMap(IoStack->FileObject, NULL, &CacheUninitEvent);
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KeWaitForSingleObject(&CacheUninitEvent.Event, Executive, KernelMode, FALSE, NULL);
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Fcb = IoStack->FileObject->FsContext;
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ExFreePoolWithTag(Fcb, 'FwrI');
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IoStack->FileObject->FsContext = NULL;
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Status = STATUS_SUCCESS;
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}
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if (Status == STATUS_PENDING)
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{
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IoMarkIrpPending(Irp);
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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Status = STATUS_PENDING;
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}
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else
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{
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Irp->IoStatus.Status = Status;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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}
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return Status;
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}
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