NTSTATUS drv_pnp(PDEVICE_OBJECT DeviceObject, PIRP Irp) {
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
device_extension* Vcb = DeviceObject->DeviceExtension;
NTSTATUS Status;
BOOL top_level;
FsRtlEnterFileSystem();
top_level = is_top_level(Irp);
if (Vcb && Vcb->type == VCB_TYPE_CONTROL) {
Status = bus_pnp(DeviceObject->DeviceExtension, Irp);
goto exit;
} else if (Vcb && Vcb->type == VCB_TYPE_VOLUME) {
volume_device_extension* vde = DeviceObject->DeviceExtension;
IoSkipCurrentIrpStackLocation(Irp);
Status = IoCallDriver(vde->pdo, Irp);
goto exit;
} else if (Vcb && Vcb->type == VCB_TYPE_PDO) {
Status = pdo_pnp(DeviceObject, Irp);
goto end;
} else if (!Vcb || Vcb->type != VCB_TYPE_FS) {
Status = STATUS_INVALID_PARAMETER;
goto end;
}
Status = STATUS_NOT_IMPLEMENTED;
switch (IrpSp->MinorFunction) {
case IRP_MN_CANCEL_REMOVE_DEVICE:
Status = pnp_cancel_remove_device(DeviceObject);
break;
case IRP_MN_QUERY_REMOVE_DEVICE:
Status = pnp_query_remove_device(DeviceObject, Irp);
break;
case IRP_MN_REMOVE_DEVICE:
Status = pnp_remove_device(DeviceObject);
break;
case IRP_MN_SURPRISE_REMOVAL:
Status = pnp_surprise_removal(DeviceObject, Irp);
break;
default:
TRACE("passing minor function 0x%x on\n", IrpSp->MinorFunction);
IoSkipCurrentIrpStackLocation(Irp);
Status = IoCallDriver(Vcb->Vpb->RealDevice, Irp);
goto exit;
}
end:
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
exit:
TRACE("returning %08x\n", Status);
if (top_level)
IoSetTopLevelIrp(NULL);
FsRtlExitFileSystem();
return Status;
}
NTSTATUS STDCALL drv_pnp(PDEVICE_OBJECT DeviceObject, PIRP Irp) {
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
device_extension* Vcb = DeviceObject->DeviceExtension;
NTSTATUS Status;
BOOL top_level;
FsRtlEnterFileSystem();
top_level = is_top_level(Irp);
Status = STATUS_NOT_IMPLEMENTED;
switch (IrpSp->MinorFunction) {
case IRP_MN_CANCEL_REMOVE_DEVICE:
Status = pnp_cancel_remove_device(DeviceObject, Irp);
break;
case IRP_MN_QUERY_REMOVE_DEVICE:
Status = pnp_query_remove_device(DeviceObject, Irp);
break;
case IRP_MN_REMOVE_DEVICE:
Status = pnp_remove_device(DeviceObject, Irp);
break;
case IRP_MN_START_DEVICE:
Status = pnp_start_device(DeviceObject, Irp);
break;
case IRP_MN_SURPRISE_REMOVAL:
Status = pnp_surprise_removal(DeviceObject, Irp);
break;
default:
TRACE("passing minor function 0x%x on\n", IrpSp->MinorFunction);
IoSkipCurrentIrpStackLocation(Irp);
Status = IoCallDriver(Vcb->devices[0].devobj, Irp);
goto end;
}
// // Irp->IoStatus.Status = Status;
// // Irp->IoStatus.Information = 0;
//
// IoSkipCurrentIrpStackLocation(Irp);
//
// Status = IoCallDriver(Vcb->devices[0].devobj, Irp);
//
// // IoCompleteRequest(Irp, IO_NO_INCREMENT);
Irp->IoStatus.Status = Status;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
end:
if (top_level)
IoSetTopLevelIrp(NULL);
FsRtlExitFileSystem();
return Status;
}
