+++ /dev/null
-/*
- * COPYRIGHT: GNU GENERAL PUBLIC LICENSE VERSION 2
- * PROJECT: ReiserFs file system driver for Windows NT/2000/XP/Vista.
- * FILE: pnp.c
- * PURPOSE:
- * PROGRAMMER: Mark Piper, Matt Wu, Bo Brantén.
- * HOMEPAGE:
- * UPDATE HISTORY:
- */
-
-/* INCLUDES *****************************************************************/
-
-#include "rfsd.h"
-
-/* GLOBALS ***************************************************************/
-
-extern PRFSD_GLOBAL RfsdGlobal;
-
-/* DEFINITIONS *************************************************************/
-
-#define DBG_PNP DBG_USER
-
-#ifdef _PREFAST_
-IO_COMPLETION_ROUTINE RfsdPnpCompletionRoutine;
-#endif // _PREFAST_
-
-NTSTATUS NTAPI
-RfsdPnpCompletionRoutine (
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp,
- IN PVOID Contxt );
-
-#ifdef ALLOC_PRAGMA
-#pragma alloc_text(PAGE, RfsdPnp)
-#pragma alloc_text(PAGE, RfsdPnpQueryRemove)
-#pragma alloc_text(PAGE, RfsdPnpRemove)
-#pragma alloc_text(PAGE, RfsdPnpCancelRemove)
-#pragma alloc_text(PAGE, RfsdPnpSurpriseRemove)
-#endif
-
-/* FUNCTIONS *************************************************************/
-
-#if (_WIN32_WINNT >= 0x0500)
-
-NTSTATUS NTAPI
-RfsdPnpCompletionRoutine (
- IN PDEVICE_OBJECT DeviceObject,
- IN PIRP Irp,
- IN PVOID Contxt
- )
-{
- PKEVENT Event = (PKEVENT) Contxt;
-
- KeSetEvent( Event, 0, FALSE );
-
- return STATUS_MORE_PROCESSING_REQUIRED;
-
- UNREFERENCED_PARAMETER( DeviceObject );
- UNREFERENCED_PARAMETER( Contxt );
-}
-
-__drv_mustHoldCriticalRegion
-NTSTATUS
-RfsdPnp (IN PRFSD_IRP_CONTEXT IrpContext)
-{
- NTSTATUS Status = STATUS_INVALID_PARAMETER;
- PIRP Irp;
- PIO_STACK_LOCATION IrpSp;
- PRFSD_VCB Vcb = 0;
- PDEVICE_OBJECT DeviceObject;
-
- PAGED_CODE();
-
- _SEH2_TRY {
-
- ASSERT(IrpContext);
-
- ASSERT((IrpContext->Identifier.Type == RFSDICX) &&
- (IrpContext->Identifier.Size == sizeof(RFSD_IRP_CONTEXT)));
-
- DeviceObject = IrpContext->DeviceObject;
-
- Vcb = (PRFSD_VCB) DeviceObject->DeviceExtension;
-
- ASSERT(Vcb != NULL);
-
- if ( !((Vcb->Identifier.Type == RFSDVCB) &&
- (Vcb->Identifier.Size == sizeof(RFSD_VCB)))) {
- _SEH2_LEAVE; // Status = STATUS_INVALID_PARAMETER
- }
-
- Irp = IrpContext->Irp;
- IrpSp = IoGetCurrentIrpStackLocation(Irp);
-
- SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
-
- switch ( IrpSp->MinorFunction ) {
-
- case IRP_MN_QUERY_REMOVE_DEVICE:
-
- RfsdPrint((DBG_PNP, "RfsdPnp: RfsdPnpQueryRemove...\n"));
- Status = RfsdPnpQueryRemove(IrpContext, Vcb);
-
- break;
-
- case IRP_MN_REMOVE_DEVICE:
-
- RfsdPrint((DBG_PNP, "RfsdPnp: RfsdPnpRemove...\n"));
- Status = RfsdPnpRemove(IrpContext, Vcb);
- break;
-
- case IRP_MN_CANCEL_REMOVE_DEVICE:
-
- RfsdPrint((DBG_PNP, "RfsdPnp: RfsdPnpCancelRemove...\n"));
- Status = RfsdPnpCancelRemove(IrpContext, Vcb);
- break;
-
- case IRP_MN_SURPRISE_REMOVAL:
-
- RfsdPrint((DBG_PNP, "RfsdPnp: RfsdPnpSupriseRemove...\n"));
- Status = RfsdPnpSurpriseRemove(IrpContext, Vcb);
- break;
-
- default:
- break;
- }
-
- } _SEH2_FINALLY {
-
- if (!IrpContext->ExceptionInProgress) {
- Irp = IrpContext->Irp;
-
- if (Irp) {
-
- //
- // Here we need pass the IRP to the disk driver.
- //
-
- IoSkipCurrentIrpStackLocation( Irp );
-
- Status = IoCallDriver(Vcb->TargetDeviceObject, Irp);
-
- IrpContext->Irp = NULL;
- }
-
- RfsdCompleteIrpContext(IrpContext, Status);
- }
- } _SEH2_END;
-
- return Status;
-}
-
-__drv_mustHoldCriticalRegion
-NTSTATUS
-RfsdPnpQueryRemove (
- PRFSD_IRP_CONTEXT IrpContext,
- PRFSD_VCB Vcb
- )
-
-{
- NTSTATUS Status;
- KEVENT Event;
- BOOLEAN bDeleted = FALSE;
- BOOLEAN VcbAcquired = FALSE;
-
- PAGED_CODE();
-
- _SEH2_TRY {
-
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove by RfsdPnp ...\n"));
-
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: RfsdFlushVolume ...\n"));
-
-#if (_WIN32_WINNT >= 0x0500)
- CcWaitForCurrentLazyWriterActivity();
-#endif
-
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
- VcbAcquired = TRUE;
-
- RfsdFlushFiles(Vcb, FALSE);
-
- RfsdFlushVolume(Vcb, FALSE);
-
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: RfsdLockVcb: Vcb=%xh FileObject=%xh ...\n",
- Vcb, IrpContext->FileObject));
- Status = RfsdLockVcb(Vcb, IrpContext->FileObject);
-
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: RfsdPurgeVolume ...\n"));
- RfsdPurgeVolume(Vcb, TRUE);
-
- if (!NT_SUCCESS(Status)) {
- _SEH2_LEAVE;
- }
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread() );
- VcbAcquired = FALSE;
-
- IoCopyCurrentIrpStackLocationToNext(IrpContext->Irp);
-
- KeInitializeEvent( &Event, NotificationEvent, FALSE );
- IoSetCompletionRoutine( IrpContext->Irp,
- RfsdPnpCompletionRoutine,
- &Event,
- TRUE,
- TRUE,
- TRUE );
-
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: Call lower level driver...\n"));
- Status = IoCallDriver( Vcb->TargetDeviceObject,
- IrpContext->Irp);
-
- if (Status == STATUS_PENDING) {
-
- KeWaitForSingleObject( &Event,
- Executive,
- KernelMode,
- FALSE,
- NULL );
-
- Status = IrpContext->Irp->IoStatus.Status;
- }
-
- if (NT_SUCCESS(Status)) {
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: RfsdCheckDismount ...\n"));
- bDeleted = RfsdCheckDismount(IrpContext, Vcb, TRUE);
- RfsdPrint((DBG_PNP, "RfsdPnpQueryRemove: RfsdFlushVolume bDelted=%xh ...\n", bDeleted));
- }
-
- ASSERT( !(NT_SUCCESS(Status) && !bDeleted));
-
- } _SEH2_FINALLY {
-
- if (VcbAcquired) {
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread() );
- }
-
- RfsdCompleteRequest(
- IrpContext->Irp, FALSE, (CCHAR)(NT_SUCCESS(Status)?
- IO_DISK_INCREMENT : IO_NO_INCREMENT) );
-
- IrpContext->Irp = NULL;
- } _SEH2_END;
-
- return Status;
-}
-
-__drv_mustHoldCriticalRegion
-NTSTATUS
-RfsdPnpRemove (
- PRFSD_IRP_CONTEXT IrpContext,
- PRFSD_VCB Vcb )
-{
- NTSTATUS Status;
- KEVENT Event;
- BOOLEAN bDeleted;
-
- PAGED_CODE();
-
- _SEH2_TRY {
-
- RfsdPrint((DBG_PNP, "RfsdPnpRemove by RfsdPnp ...\n"));
-#if (_WIN32_WINNT >= 0x0500)
- CcWaitForCurrentLazyWriterActivity();
-#endif
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
-
- Status = RfsdLockVcb(Vcb, IrpContext->FileObject);
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread());
-
- //
- // Setup the Irp. We'll send it to the lower disk driver.
- //
-
- IoCopyCurrentIrpStackLocationToNext(IrpContext->Irp);
-
- KeInitializeEvent( &Event, NotificationEvent, FALSE );
- IoSetCompletionRoutine( IrpContext->Irp,
- RfsdPnpCompletionRoutine,
- &Event,
- TRUE,
- TRUE,
- TRUE );
-
- Status = IoCallDriver( Vcb->TargetDeviceObject,
- IrpContext->Irp);
-
- if (Status == STATUS_PENDING) {
-
- KeWaitForSingleObject( &Event,
- Executive,
- KernelMode,
- FALSE,
- NULL );
-
- Status = IrpContext->Irp->IoStatus.Status;
- }
-
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
-
- RfsdPurgeVolume(Vcb, FALSE);
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread() );
-
- bDeleted = RfsdCheckDismount(IrpContext, Vcb, TRUE);
-
- } _SEH2_FINALLY {
- RfsdCompleteRequest(
- IrpContext->Irp, FALSE, (CCHAR)(NT_SUCCESS(Status)?
- IO_DISK_INCREMENT : IO_NO_INCREMENT) );
-
- IrpContext->Irp = NULL;
- } _SEH2_END;
-
- return Status;
-}
-
-__drv_mustHoldCriticalRegion
-NTSTATUS
-RfsdPnpSurpriseRemove (
- PRFSD_IRP_CONTEXT IrpContext,
- PRFSD_VCB Vcb )
-{
- NTSTATUS Status;
- KEVENT Event;
- BOOLEAN bDeleted;
-
- PAGED_CODE();
-
- _SEH2_TRY {
-
- RfsdPrint((DBG_PNP, "RfsdPnpSupriseRemove by RfsdPnp ...\n"));
-#if (_WIN32_WINNT >= 0x0500)
- CcWaitForCurrentLazyWriterActivity();
-#endif
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
-
- Status = RfsdLockVcb(Vcb, IrpContext->FileObject);
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread());
-
- //
- // Setup the Irp. We'll send it to the lower disk driver.
- //
-
- IoCopyCurrentIrpStackLocationToNext(IrpContext->Irp);
-
- KeInitializeEvent( &Event, NotificationEvent, FALSE );
- IoSetCompletionRoutine( IrpContext->Irp,
- RfsdPnpCompletionRoutine,
- &Event,
- TRUE,
- TRUE,
- TRUE );
-
- Status = IoCallDriver( Vcb->TargetDeviceObject,
- IrpContext->Irp);
-
- if (Status == STATUS_PENDING) {
-
- KeWaitForSingleObject( &Event,
- Executive,
- KernelMode,
- FALSE,
- NULL );
-
- Status = IrpContext->Irp->IoStatus.Status;
- }
-
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
-
- RfsdPurgeVolume(Vcb, FALSE);
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread() );
-
- bDeleted = RfsdCheckDismount(IrpContext, Vcb, TRUE);
-
- } _SEH2_FINALLY {
-
- RfsdCompleteRequest(
- IrpContext->Irp, FALSE, (CCHAR)(NT_SUCCESS(Status)?
- IO_DISK_INCREMENT : IO_NO_INCREMENT) );
-
- IrpContext->Irp = NULL;
- } _SEH2_END;
-
- return Status;
-}
-
-__drv_mustHoldCriticalRegion
-NTSTATUS
-RfsdPnpCancelRemove (
- PRFSD_IRP_CONTEXT IrpContext,
- PRFSD_VCB Vcb
- )
-{
- NTSTATUS Status;
-
- PAGED_CODE();
-
- RfsdPrint((DBG_PNP, "RfsdPnpCancelRemove by RfsdPnp ...\n"));
-
- ExAcquireResourceExclusiveLite(
- &Vcb->MainResource, TRUE );
-
- Status = RfsdUnlockVcb(Vcb, IrpContext->FileObject);
-
- ExReleaseResourceForThreadLite(
- &Vcb->MainResource,
- ExGetCurrentResourceThread());
-
- IoSkipCurrentIrpStackLocation(IrpContext->Irp);
-
- Status = IoCallDriver(Vcb->TargetDeviceObject, IrpContext->Irp);
-
- IrpContext->Irp = NULL;
-
- return Status;
-}
-
-#endif // (_WIN32_WINNT >= 0x0500)
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