NTSTATUS
FatCommonPnp (
IN PIRP_CONTEXT IrpContext,
IN PIRP Irp
)
/*++
Routine Description:
This is the common routine for doing PnP operations called
by both the fsd and fsp threads
Arguments:
Irp - Supplies the Irp to process
Return Value:
NTSTATUS - The return status for the operation
--*/
{
NTSTATUS Status;
PIO_STACK_LOCATION IrpSp;
PVOLUME_DEVICE_OBJECT OurDeviceObject;
PVCB Vcb;
//
// Force everything to wait.
//
SetFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
//
// Get the current Irp stack location.
//
IrpSp = IoGetCurrentIrpStackLocation( Irp );
//
// Find our Vcb. This is tricky since we have no file object in the Irp.
//
OurDeviceObject = (PVOLUME_DEVICE_OBJECT) IrpSp->DeviceObject;
//
// Take the global lock to synchronise against volume teardown.
//
FatAcquireExclusiveGlobal( IrpContext );
//
// Make sure this device object really is big enough to be a volume device
// object. If it isn't, we need to get out before we try to reference some
// field that takes us past the end of an ordinary device object.
//
if (OurDeviceObject->DeviceObject.Size != sizeof(VOLUME_DEVICE_OBJECT) ||
NodeType( &OurDeviceObject->Vcb ) != FAT_NTC_VCB) {
//
// We were called with something we don't understand.
//
FatReleaseGlobal( IrpContext );
Status = STATUS_INVALID_PARAMETER;
FatCompleteRequest( IrpContext, Irp, Status );
return Status;
}
#if __NDAS_FAT__
if (OurDeviceObject->NetdiskEnableMode == NETDISK_SECONDARY)
SetFlag( IrpContext->NdFatFlags, ND_FAT_IRP_CONTEXT_FLAG_SECONDARY_CONTEXT );
#endif
Vcb = &OurDeviceObject->Vcb;
//
// Case on the minor code.
//
#if __NDAS_FAT_SECONDARY__
if ( ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->Secondary &&
( ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->NetdiskEnableMode == NETDISK_SECONDARY ||
((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->NetdiskEnableMode == NETDISK_SECONDARY2PRIMARY ) )
{
PSECONDARY Secondary = ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->Secondary;
Status = STATUS_SUCCESS;
Secondary_Reference( Secondary );
switch ( IrpSp->MinorFunction ) {
case IRP_MN_QUERY_REMOVE_DEVICE: {
DebugTrace2( 0, Dbg, ("FatCommonPnp: IRP_MN_QUERY_REMOVE_DEVICE NetdiskEnableMode = %d\n", ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->NetdiskEnableMode) );
ExAcquireFastMutex( &Secondary->FastMutex );
if (!Secondary->TryCloseActive) {
Secondary->TryCloseActive = TRUE;
ExReleaseFastMutex( &Secondary->FastMutex );
Secondary_Reference( Secondary );
//FatDebugTraceLevel |= DEBUG_TRACE_CLOSE;
SecondaryTryClose( IrpContext, Secondary );
//FatDebugTraceLevel &= ~DEBUG_TRACE_CLOSE;
} else {
ExReleaseFastMutex( &Secondary->FastMutex );
}
if (Vcb->SecondaryOpenFileCount) {
LARGE_INTEGER interval;
// Wait all files closed
interval.QuadPart = (1 * HZ); //delay 1 seconds
KeDelayExecutionThread(KernelMode, FALSE, &interval);
}
#if 0
if (Vcb->SecondaryOpenFileCount) {
LONG ccbCount;
PLIST_ENTRY ccbListEntry;
PVOID restartKey;
PFCB fcb;
ExAcquireFastMutex( &Secondary->RecoveryCcbQMutex );
for (ccbCount = 0, ccbListEntry = Secondary->RecoveryCcbQueue.Flink;
ccbListEntry != &Secondary->RecoveryCcbQueue;
ccbListEntry = ccbListEntry->Flink, ccbCount++);
ExReleaseFastMutex( &Secondary->RecoveryCcbQMutex );
ASSERT( !IsListEmpty(&Secondary->RecoveryCcbQueue) );
ASSERT( ccbCount == Vcb->SecondaryOpenFileCount );
DebugTrace2( 0, Dbg, ("IRP_MN_QUERY_REMOVE_DEVICE: Vcb->SecondaryCloseCount = %d, Vcb->CloseCount = %d, ccbCount = %d\n",
Vcb->SecondaryOpenFileCount, Vcb->OpenCount, ccbCount) );
restartKey = NULL;
fcb = NdFatGetNextFcbTableEntry( &Secondary->VolDo->Vcb, &restartKey );
ASSERT( fcb != NULL || !IsListEmpty(&Secondary->DeletedFcbQueue) );
Status = STATUS_UNSUCCESSFUL;
}
#endif
break;
}
case IRP_MN_REMOVE_DEVICE: {
PVOID restartKey;
PFCB fcb;
DebugTrace2( 0, Dbg, ("FatCommonPnp: IRP_MN_REMOVE_DEVICE NetdiskEnableMode = %d\n", ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->NetdiskEnableMode) );
#if 0
restartKey = NULL;
fcb = NdFatGetNextFcbTableEntry( &Secondary->VolDo->Vcb, &restartKey );
ASSERT( fcb == NULL && IsListEmpty(&Secondary->DeletedFcbQueue) );
#endif
if (Vcb->SecondaryOpenFileCount) {
ASSERT( NDFAT_BUG );
Status = STATUS_UNSUCCESSFUL;
}
break;
}
default: {
DebugTrace2( 0, Dbg, ("FatCommonPnp: IrpSp-MinorFunction = %d NetdiskEnableMode = %d\n",
IrpSp->MinorFunction, ((PVOLUME_DEVICE_OBJECT)IrpSp->DeviceObject)->NetdiskEnableMode) );
if (IrpSp->MinorFunction != IRP_MN_QUERY_DEVICE_RELATIONS) {
if (IrpSp->FileObject && IS_SECONDARY_FILEOBJECT(IrpSp->FileObject)) {
ASSERT( FALSE );
}
}
Status = STATUS_SUCCESS;
break;
}
}
Secondary_Dereference( Secondary );
if (!NT_SUCCESS(Status)) {
FatCompleteRequest( NULL, Irp, Status );
return Status;
}
}
#endif
switch ( IrpSp->MinorFunction ) {
case IRP_MN_QUERY_REMOVE_DEVICE:
Status = FatPnpQueryRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_SURPRISE_REMOVAL:
Status = FatPnpSurpriseRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_REMOVE_DEVICE:
Status = FatPnpRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_CANCEL_REMOVE_DEVICE:
Status = FatPnpCancelRemove( IrpContext, Irp, Vcb );
break;
default:
FatReleaseGlobal( IrpContext );
//
// Just pass the IRP on. As we do not need to be in the
// way on return, ellide ourselves out of the stack.
//
IoSkipCurrentIrpStackLocation( Irp );
Status = IoCallDriver(Vcb->TargetDeviceObject, Irp);
//
// Cleanup our Irp Context. The driver has completed the Irp.
//
FatCompleteRequest( IrpContext, NULL, STATUS_SUCCESS );
break;
}
return Status;
}
NTSTATUS
FatCommonPnp (
IN PIRP_CONTEXT IrpContext,
IN PIRP Irp
)
/*++
Routine Description:
This is the common routine for doing PnP operations called
by both the fsd and fsp threads
Arguments:
Irp - Supplies the Irp to process
Return Value:
NTSTATUS - The return status for the operation
--*/
{
NTSTATUS Status;
PIO_STACK_LOCATION IrpSp;
PVOLUME_DEVICE_OBJECT OurDeviceObject;
PVCB Vcb;
//
// Get the current Irp stack location.
//
IrpSp = IoGetCurrentIrpStackLocation( Irp );
//
// Find our Vcb. This is tricky since we have no file object in the Irp.
//
OurDeviceObject = (PVOLUME_DEVICE_OBJECT) IrpSp->DeviceObject;
//
// Make sure this device object really is big enough to be a volume device
// object. If it isn't, we need to get out before we try to reference some
// field that takes us past the end of an ordinary device object.
//
if (OurDeviceObject->DeviceObject.Size != sizeof(VOLUME_DEVICE_OBJECT) ||
NodeType( &OurDeviceObject->Vcb ) != FAT_NTC_VCB) {
//
// We were called with something we don't understand.
//
Status = STATUS_INVALID_PARAMETER;
FatCompleteRequest( IrpContext, Irp, Status );
return Status;
}
//
// Force everything to wait.
//
SetFlag(IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
Vcb = &OurDeviceObject->Vcb;
//
// Case on the minor code.
//
switch ( IrpSp->MinorFunction ) {
case IRP_MN_QUERY_REMOVE_DEVICE:
Status = FatPnpQueryRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_SURPRISE_REMOVAL:
Status = FatPnpSurpriseRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_REMOVE_DEVICE:
Status = FatPnpRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_CANCEL_REMOVE_DEVICE:
Status = FatPnpCancelRemove( IrpContext, Irp, Vcb );
break;
default:
//
// Just pass the IRP on. As we do not need to be in the
// way on return, ellide ourselves out of the stack.
//
IoSkipCurrentIrpStackLocation( Irp );
Status = IoCallDriver(Vcb->TargetDeviceObject, Irp);
//
// Cleanup our Irp Context. The driver has completed the Irp.
//
FatCompleteRequest( IrpContext, NULL, STATUS_SUCCESS );
break;
}
return Status;
}
__drv_mustHoldCriticalRegion
NTSTATUS
FatCommonPnp (
IN PIRP_CONTEXT IrpContext,
IN PIRP Irp
)
/*++
Routine Description:
This is the common routine for doing PnP operations called
by both the fsd and fsp threads
Arguments:
Irp - Supplies the Irp to process
Return Value:
NTSTATUS - The return status for the operation
--*/
{
NTSTATUS Status;
PIO_STACK_LOCATION IrpSp;
PVOLUME_DEVICE_OBJECT OurDeviceObject;
PVCB Vcb;
PAGED_CODE();
//
// Force everything to wait.
//
SetFlag( IrpContext->Flags, IRP_CONTEXT_FLAG_WAIT);
//
// Get the current Irp stack location.
//
IrpSp = IoGetCurrentIrpStackLocation( Irp );
//
// Find our Vcb. This is tricky since we have no file object in the Irp.
//
OurDeviceObject = (PVOLUME_DEVICE_OBJECT) IrpSp->DeviceObject;
//
// Take the global lock to synchronise against volume teardown.
//
#pragma prefast( push )
#pragma prefast( disable: 28137, "prefast wants the wait to be a constant, but that isn't possible for the way fastfat is designed" )
#pragma prefast( disable: 28193, "this will always wait" )
FatAcquireExclusiveGlobal( IrpContext );
#pragma prefast( pop )
//
// Make sure this device object really is big enough to be a volume device
// object. If it isn't, we need to get out before we try to reference some
// field that takes us past the end of an ordinary device object.
//
#pragma prefast( suppress: 28175, "touching Size is ok for a filesystem" )
if (OurDeviceObject->DeviceObject.Size != sizeof(VOLUME_DEVICE_OBJECT) ||
NodeType( &OurDeviceObject->Vcb ) != FAT_NTC_VCB) {
//
// We were called with something we don't understand.
//
FatReleaseGlobal( IrpContext );
Status = STATUS_INVALID_PARAMETER;
FatCompleteRequest( IrpContext, Irp, Status );
return Status;
}
Vcb = &OurDeviceObject->Vcb;
//
// Case on the minor code.
//
switch ( IrpSp->MinorFunction ) {
case IRP_MN_QUERY_REMOVE_DEVICE:
Status = FatPnpQueryRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_SURPRISE_REMOVAL:
Status = FatPnpSurpriseRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_REMOVE_DEVICE:
Status = FatPnpRemove( IrpContext, Irp, Vcb );
break;
case IRP_MN_CANCEL_REMOVE_DEVICE:
Status = FatPnpCancelRemove( IrpContext, Irp, Vcb );
break;
default:
FatReleaseGlobal( IrpContext );
//
// Just pass the IRP on. As we do not need to be in the
// way on return, ellide ourselves out of the stack.
//
IoSkipCurrentIrpStackLocation( Irp );
Status = IoCallDriver(Vcb->TargetDeviceObject, Irp);
//
// Cleanup our Irp Context. The driver has completed the Irp.
//
FatCompleteRequest( IrpContext, NULL, STATUS_SUCCESS );
break;
}
return Status;
}