--- trunk/reactos/ntoskrnl/io/file.c 2005-04-30 21:11:39 UTC (rev 14892)
+++ trunk/reactos/ntoskrnl/io/file.c 2005-04-30 22:00:26 UTC (rev 14893)
@@ -2150,99 +2150,132 @@
ULONG Length,
FILE_INFORMATION_CLASS FileInformationClass)
{
- PFILE_OBJECT FileObject;
- NTSTATUS Status;
- PIRP Irp;
- PDEVICE_OBJECT DeviceObject;
- PIO_STACK_LOCATION StackPtr;
- PVOID SystemBuffer;
- KPROCESSOR_MODE PreviousMode;
-
- ASSERT(IoStatusBlock != NULL);
- ASSERT(FileInformation != NULL);
-
- DPRINT("NtQueryInformationFile(Handle %x StatBlk %x FileInfo %x Length %d "
- "Class %d)\n", FileHandle, IoStatusBlock, FileInformation,
- Length, FileInformationClass);
+ OBJECT_HANDLE_INFORMATION HandleInformation;
+ PFILE_OBJECT FileObject;
+ NTSTATUS Status;
+ PIRP Irp;
+ PDEVICE_OBJECT DeviceObject;
+ PIO_STACK_LOCATION StackPtr;
+ PVOID SystemBuffer;
+ KPROCESSOR_MODE PreviousMode;
+ BOOLEAN Failed = FALSE;
- PreviousMode = ExGetPreviousMode();
+ ASSERT(IoStatusBlock != NULL);
+ ASSERT(FileInformation != NULL);
- Status = ObReferenceObjectByHandle(FileHandle,
- 0, /* FIXME - access depends on the information class! */
- IoFileObjectType,
- PreviousMode,
- (PVOID *)&FileObject,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- return(Status);
- }
- DPRINT("FileObject %x\n", FileObject);
-
- DeviceObject = FileObject->DeviceObject;
-
- Irp = IoAllocateIrp(DeviceObject->StackSize,
- TRUE);
- if (Irp == NULL)
- {
- ObDereferenceObject(FileObject);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
- Length,
- TAG_SYSB);
- if (SystemBuffer == NULL)
- {
- IoFreeIrp(Irp);
- ObDereferenceObject(FileObject);
- return(STATUS_INSUFFICIENT_RESOURCES);
- }
-
- /* Trigger FileObject/Event dereferencing */
- Irp->Tail.Overlay.OriginalFileObject = FileObject;
- Irp->RequestorMode = PreviousMode;
- Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
- Irp->UserIosb = IoStatusBlock;
- Irp->UserEvent = &FileObject->Event;
- Irp->Tail.Overlay.Thread = PsGetCurrentThread();
- KeResetEvent( &FileObject->Event );
-
- StackPtr = IoGetNextIrpStackLocation(Irp);
- StackPtr->MajorFunction = IRP_MJ_QUERY_INFORMATION;
- StackPtr->MinorFunction = 0;
- StackPtr->Flags = 0;
- StackPtr->Control = 0;
- StackPtr->DeviceObject = DeviceObject;
- StackPtr->FileObject = FileObject;
-
- StackPtr->Parameters.QueryFile.FileInformationClass =
- FileInformationClass;
- StackPtr->Parameters.QueryFile.Length = Length;
-
- Status = IoCallDriver(FileObject->DeviceObject,
- Irp);
- if (Status == STATUS_PENDING && (FileObject->Flags & FO_SYNCHRONOUS_IO))
- {
- KeWaitForSingleObject(&FileObject->Event,
- Executive,
- PreviousMode,
- FileObject->Flags & FO_ALERTABLE_IO,
- NULL);
- Status = IoStatusBlock->Status;
- }
+ DPRINT("NtQueryInformationFile(Handle %x StatBlk %x FileInfo %x Length %d "
+ "Class %d)\n", FileHandle, IoStatusBlock, FileInformation,
+ Length, FileInformationClass);
+ PreviousMode = ExGetPreviousMode();
+
+ Status = ObReferenceObjectByHandle(FileHandle,
+ 0,
+ IoFileObjectType,
+ PreviousMode,
+ (PVOID *)&FileObject,
+ &HandleInformation);
+ if (!NT_SUCCESS(Status))
+ {
+ return Status;
+ }
+
+ /* Check information class specific access rights */
+ switch (FileInformationClass)
+ {
+ case FileBasicInformation:
+ if (!(HandleInformation.GrantedAccess & FILE_READ_ATTRIBUTES))
+ Failed = TRUE;
+ break;
+
+ case FilePositionInformation:
+ if (!(HandleInformation.GrantedAccess & (FILE_READ_DATA | FILE_WRITE_DATA)) ||
+ !(FileObject->Flags & FO_SYNCHRONOUS_IO))
+ Failed = TRUE;
+ break;
+
+ case FileAlignmentInformation:
+ if (!(FileObject->Flags & FO_NO_INTERMEDIATE_BUFFERING))
+ Failed = TRUE;
+ break;
+
+ default:
+ break;
+ }
+
+ if (Failed)
+ {
+ DPRINT1("NtQueryInformationFile() returns STATUS_ACCESS_DENIED!\n");
+ ObDereferenceObject(FileObject);
+ return STATUS_ACCESS_DENIED;
+ }
+
+ DPRINT("FileObject %x\n", FileObject);
+
+ DeviceObject = FileObject->DeviceObject;
+
+ Irp = IoAllocateIrp(DeviceObject->StackSize,
+ TRUE);
+ if (Irp == NULL)
+ {
+ ObDereferenceObject(FileObject);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
+ Length,
+ TAG_SYSB);
+ if (SystemBuffer == NULL)
+ {
+ IoFreeIrp(Irp);
+ ObDereferenceObject(FileObject);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Trigger FileObject/Event dereferencing */
+ Irp->Tail.Overlay.OriginalFileObject = FileObject;
+ Irp->RequestorMode = PreviousMode;
+ Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
+ Irp->UserIosb = IoStatusBlock;
+ Irp->UserEvent = &FileObject->Event;
+ Irp->Tail.Overlay.Thread = PsGetCurrentThread();
+ KeResetEvent(&FileObject->Event);
+
+ StackPtr = IoGetNextIrpStackLocation(Irp);
+ StackPtr->MajorFunction = IRP_MJ_QUERY_INFORMATION;
+ StackPtr->MinorFunction = 0;
+ StackPtr->Flags = 0;
+ StackPtr->Control = 0;
+ StackPtr->DeviceObject = DeviceObject;
+ StackPtr->FileObject = FileObject;
+
+ StackPtr->Parameters.QueryFile.FileInformationClass =
+ FileInformationClass;
+ StackPtr->Parameters.QueryFile.Length = Length;
+
+ Status = IoCallDriver(FileObject->DeviceObject,
+ Irp);
+ if (Status == STATUS_PENDING && (FileObject->Flags & FO_SYNCHRONOUS_IO))
+ {
+ KeWaitForSingleObject(&FileObject->Event,
+ Executive,
+ PreviousMode,
+ FileObject->Flags & FO_ALERTABLE_IO,
+ NULL);
+ Status = IoStatusBlock->Status;
+ }
+
if (NT_SUCCESS(Status))
- {
- DPRINT("Information %lu\n", IoStatusBlock->Information);
- MmSafeCopyToUser(FileInformation,
- SystemBuffer,
- IoStatusBlock->Information);
- }
+ {
+ DPRINT("Information %lu\n", IoStatusBlock->Information);
+ MmSafeCopyToUser(FileInformation,
+ SystemBuffer,
+ IoStatusBlock->Information);
+ }
- ExFreePool(SystemBuffer);
+ ExFreePool(SystemBuffer);
- return Status;
+ return Status;
}
/*
@@ -2465,134 +2498,171 @@
ULONG Length,
FILE_INFORMATION_CLASS FileInformationClass)
{
- PIO_STACK_LOCATION StackPtr;
- PFILE_OBJECT FileObject;
- PDEVICE_OBJECT DeviceObject;
- PIRP Irp;
- NTSTATUS Status;
- PVOID SystemBuffer;
- KPROCESSOR_MODE PreviousMode;
-
- ASSERT(IoStatusBlock != NULL);
- ASSERT(FileInformation != NULL);
-
- DPRINT("NtSetInformationFile(Handle %x StatBlk %x FileInfo %x Length %d "
- "Class %d)\n", FileHandle, IoStatusBlock, FileInformation,
- Length, FileInformationClass);
+ OBJECT_HANDLE_INFORMATION HandleInformation;
+ PIO_STACK_LOCATION StackPtr;
+ PFILE_OBJECT FileObject;
+ PDEVICE_OBJECT DeviceObject;
+ PIRP Irp;
+ NTSTATUS Status;
+ PVOID SystemBuffer;
+ KPROCESSOR_MODE PreviousMode;
+ BOOLEAN Failed = FALSE;
- PreviousMode = ExGetPreviousMode();
+ ASSERT(IoStatusBlock != NULL);
+ ASSERT(FileInformation != NULL);
- /* Get the file object from the file handle */
- Status = ObReferenceObjectByHandle(FileHandle,
- 0, /* FIXME - depends on the information class */
- IoFileObjectType,
- PreviousMode,
- (PVOID *)&FileObject,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- return Status;
- }
-
- DPRINT("FileObject %x\n", FileObject);
+ DPRINT("NtSetInformationFile(Handle %x StatBlk %x FileInfo %x Length %d "
+ "Class %d)\n", FileHandle, IoStatusBlock, FileInformation,
+ Length, FileInformationClass);
- /* io completion port? */
- if (FileInformationClass == FileCompletionInformation)
- {
- PKQUEUE Queue;
+ PreviousMode = ExGetPreviousMode();
- if (Length < sizeof(FILE_COMPLETION_INFORMATION))
+ /* Get the file object from the file handle */
+ Status = ObReferenceObjectByHandle(FileHandle,
+ 0,
+ IoFileObjectType,
+ PreviousMode,
+ (PVOID *)&FileObject,
+ &HandleInformation);
+ if (!NT_SUCCESS(Status))
+ {
+ return Status;
+ }
+
+ /* Check information class specific access rights */
+ switch (FileInformationClass)
+ {
+ case FileBasicInformation:
+ if (!(HandleInformation.GrantedAccess & FILE_WRITE_ATTRIBUTES))
+ Failed = TRUE;
+ break;
+
+ case FileDispositionInformation:
+ if (!(HandleInformation.GrantedAccess & DELETE))
+ Failed = TRUE;
+ break;
+
+ case FilePositionInformation:
+ if (!(HandleInformation.GrantedAccess & (FILE_READ_DATA | FILE_WRITE_DATA)) ||
+ !(FileObject->Flags & FO_SYNCHRONOUS_IO))
+ Failed = TRUE;
+ break;
+
+ case FileEndOfFileInformation:
+ if (!(HandleInformation.GrantedAccess & FILE_WRITE_DATA))
+ Failed = TRUE;
+ break;
+
+ default:
+ break;
+ }
+
+ if (Failed)
+ {
+ DPRINT1("NtSetInformationFile() returns STATUS_ACCESS_DENIED!\n");
+ ObDereferenceObject(FileObject);
+ return STATUS_ACCESS_DENIED;
+ }
+
+ DPRINT("FileObject %x\n", FileObject);
+
+ /* io completion port? */
+ if (FileInformationClass == FileCompletionInformation)
+ {
+ PKQUEUE Queue;
+
+ if (Length < sizeof(FILE_COMPLETION_INFORMATION))
+ {
+ Status = STATUS_INFO_LENGTH_MISMATCH;
+ }
+ else
+ {
+ Status = ObReferenceObjectByHandle(((PFILE_COMPLETION_INFORMATION)FileInformation)->IoCompletionHandle,
+ IO_COMPLETION_MODIFY_STATE,//???
+ ExIoCompletionType,
+ PreviousMode,
+ (PVOID*)&Queue,
+ NULL);
+ if (NT_SUCCESS(Status))
{
- Status = STATUS_INFO_LENGTH_MISMATCH;
- }
- else
- {
- Status = ObReferenceObjectByHandle(((PFILE_COMPLETION_INFORMATION)FileInformation)->IoCompletionHandle,
- IO_COMPLETION_MODIFY_STATE,//???
- ExIoCompletionType,
- PreviousMode,
- (PVOID*)&Queue,
- NULL);
- if (NT_SUCCESS(Status))
- {
- /* FIXME: maybe use lookaside list */
- FileObject->CompletionContext = ExAllocatePool(NonPagedPool, sizeof(IO_COMPLETION_CONTEXT));
- FileObject->CompletionContext->Key = ((PFILE_COMPLETION_INFORMATION)FileInformation)->CompletionKey;
- FileObject->CompletionContext->Port = Queue;
+ /* FIXME: maybe use lookaside list */
+ FileObject->CompletionContext = ExAllocatePool(NonPagedPool, sizeof(IO_COMPLETION_CONTEXT));
+ FileObject->CompletionContext->Key = ((PFILE_COMPLETION_INFORMATION)FileInformation)->CompletionKey;
+ FileObject->CompletionContext->Port = Queue;
- ObDereferenceObject(Queue);
- }
+ ObDereferenceObject(Queue);
}
+ }
- ObDereferenceObject(FileObject);
- return Status;
- }
+ ObDereferenceObject(FileObject);
+ return Status;
+ }
- DeviceObject = FileObject->DeviceObject;
-
- Irp = IoAllocateIrp(DeviceObject->StackSize,
- TRUE);
- if (Irp == NULL)
- {
- ObDereferenceObject(FileObject);
- return STATUS_INSUFFICIENT_RESOURCES;
- }
-
- SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
- Length,
- TAG_SYSB);
- if (SystemBuffer == NULL)
- {
- IoFreeIrp(Irp);
- ObDereferenceObject(FileObject);
- return(STATUS_INSUFFICIENT_RESOURCES);
- }
-
- MmSafeCopyFromUser(SystemBuffer,
- FileInformation,
- Length);
-
- /* Trigger FileObject/Event dereferencing */
- Irp->Tail.Overlay.OriginalFileObject = FileObject;
- Irp->RequestorMode = PreviousMode;
- Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
- Irp->UserIosb = IoStatusBlock;
- Irp->UserEvent = &FileObject->Event;
- KeResetEvent( &FileObject->Event );
- Irp->Tail.Overlay.Thread = PsGetCurrentThread();
-
- StackPtr = IoGetNextIrpStackLocation(Irp);
- StackPtr->MajorFunction = IRP_MJ_SET_INFORMATION;
- StackPtr->MinorFunction = 0;
- StackPtr->Flags = 0;
- StackPtr->Control = 0;
- StackPtr->DeviceObject = DeviceObject;
- StackPtr->FileObject = FileObject;
-
- StackPtr->Parameters.SetFile.FileInformationClass =
- FileInformationClass;
- StackPtr->Parameters.SetFile.Length = Length;
-
- /*
- * Pass the IRP to the FSD (and wait for
- * it if required)
- */
- DPRINT("FileObject->DeviceObject %x\n", FileObject->DeviceObject);
- Status = IoCallDriver(FileObject->DeviceObject,
- Irp);
- if (Status == STATUS_PENDING && (FileObject->Flags & FO_SYNCHRONOUS_IO))
- {
- KeWaitForSingleObject(&FileObject->Event,
- Executive,
- PreviousMode,
- FileObject->Flags & FO_ALERTABLE_IO,
- NULL);
- Status = IoStatusBlock->Status;
- }
+ DeviceObject = FileObject->DeviceObject;
- ExFreePool(SystemBuffer);
+ Irp = IoAllocateIrp(DeviceObject->StackSize,
+ TRUE);
+ if (Irp == NULL)
+ {
+ ObDereferenceObject(FileObject);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
- return Status;
+ SystemBuffer = ExAllocatePoolWithTag(NonPagedPool,
+ Length,
+ TAG_SYSB);
+ if (SystemBuffer == NULL)
+ {
+ IoFreeIrp(Irp);
+ ObDereferenceObject(FileObject);
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ MmSafeCopyFromUser(SystemBuffer,
+ FileInformation,
+ Length);
+
+ /* Trigger FileObject/Event dereferencing */
+ Irp->Tail.Overlay.OriginalFileObject = FileObject;
+ Irp->RequestorMode = PreviousMode;
+ Irp->AssociatedIrp.SystemBuffer = SystemBuffer;
+ Irp->UserIosb = IoStatusBlock;
+ Irp->UserEvent = &FileObject->Event;
+ KeResetEvent(&FileObject->Event);
+ Irp->Tail.Overlay.Thread = PsGetCurrentThread();
+
+ StackPtr = IoGetNextIrpStackLocation(Irp);
+ StackPtr->MajorFunction = IRP_MJ_SET_INFORMATION;
+ StackPtr->MinorFunction = 0;
+ StackPtr->Flags = 0;
+ StackPtr->Control = 0;
+ StackPtr->DeviceObject = DeviceObject;
+ StackPtr->FileObject = FileObject;
+
+ StackPtr->Parameters.SetFile.FileInformationClass =
+ FileInformationClass;
+ StackPtr->Parameters.SetFile.Length = Length;
+
+ /*
+ * Pass the IRP to the FSD (and wait for
+ * it if required)
+ */
+ DPRINT("FileObject->DeviceObject %x\n", FileObject->DeviceObject);
+ Status = IoCallDriver(FileObject->DeviceObject,
+ Irp);
+ if (Status == STATUS_PENDING && (FileObject->Flags & FO_SYNCHRONOUS_IO))
+ {
+ KeWaitForSingleObject(&FileObject->Event,
+ Executive,
+ PreviousMode,
+ FileObject->Flags & FO_ALERTABLE_IO,
+ NULL);
+ Status = IoStatusBlock->Status;
+ }
+
+ ExFreePool(SystemBuffer);
+
+ return Status;
}
/*