How to get the driver name from PDRIVER_OBJECT

Andrey_Khramov

Hello,

I've run the code analysis on the usbip-win project.
I get the following warning:

driver\stub\stub_dev.c(130): warning C28175: The 'DriverName' member of _DRIVER_OBJECT should not be accessed by a driver:  Access to this member may be permitted for certain classes of drivers. See the documentation for this warning for more information.

The source code follows as below:

static BOOLEAN
is_usbip_stub_attached(PDEVICE_OBJECT pdo)
{
    DEVICE_OBJECT   *attached;

    attached = pdo->AttachedDevice;
    while (attached) {
        PDRIVER_OBJECT  drvobj = attached->DriverObject;

        if (drvobj != NULL) {
            UNICODE_STRING  name_uni;
            RtlInitUnicodeString(&name_uni, L"\\driver\\usbip_stub");
            if (RtlEqualUnicodeString(&drvobj->DriverName, &name_uni, TRUE))
                return TRUE;
        }
        attached = attached->AttachedDevice;
    }
    return FALSE;
}

I've found that I can get the 'DriverName' member of _DRIVER_OBJECT using ObQueryNameString() API via the following discussion:
Getting driver name from PDRIVER_OBJECT
I have checked the usage of the ObQueryNameString() API, but I couldn't find the relevant example code.

I hope someone to let me know how to get the driver name of PDRIVER_OBJECT using ObQueryNameString() API.
If there is another method to get the driver name, please let me know.

Thanks,
Andrey