btahm.blogg.se - Driver support free registration key

The MrxStart callback routine implemented by the network mini-redirector is called by RDBSS when the RxStartMinirdr routine is called. The RDBSS dispatch routine will also fail any requests for the following I/O request packets:

IRP requests for device creates and device operations where the FileObject->FileName.Length on the IRPSP is zero and the FileObject->RelatedFileObject is NULL.įor any other IRP request, the RDBSS dispatch routine RxFsdDispatch will return a status of STATUS_REDIRECTOR_NOT_STARTED.

Otherwise, RDBSS will only allow the following I/O request packets through to the driver until MrxStart returns successfully: The MrxStart callback routine must be implemented by the network mini-redirector driver if it wishes to receive callback routines for operations unless the network mini-redirector preserves its own driver dispatch entry points.

The network mini-redirector driver does not actually start operation until it receives a call to its MRxStart routine, one of the callback routines passed in the MINIRDR_DISPATCH structure. A network mini-redirector can override this behavior by saving its own entry points and rewriting the driver dispatch with its own entry points after the call to RxRegisterMinirdr returns or by setting a special parameter when calling RxRegisterMinirdr.

The RxRegisterMinirdr routine sets all of the driver dispatch routines of the network mini-redirector driver to point to the top-level RDBSS dispatch routine, RxFsdDispatch. RDBSS makes calls to the network mini-redirector driver through this list of callback routines.

This structure contains configuration information for the network mini-redirector and a dispatch table of pointers to callback routines implemented by the network mini-redirector kernel driver. As part of this registration process, the network mini-redirector passes a parameter to RxRegisterMinirdr that is a pointer to a large structure, MINIRDR_DISPATCH.

A network mini-redirector informs RDBSS that it has been loaded by calling RxRegisterMinirdr, the registration routine exported from RDBSS. For a non-monolithic network mini-redirector driver (the Microsoft SMB redirector), the rdbss.sys device driver is initialized in its own DriverEntry routine when loaded.Ī network mini-redirector registers with RDBSS when the driver is loaded by the kernel and unregisters with RDBSS when the driver is unloaded. In this case, the RxDriverEntry routine must be called before any other RDBSS routines are called and used. For a monolithic network mini-redirector driver, which is linked statically with rdbsslib.lib, the driver must call the RxDriverEntry routine from its DriverEntry routine to initialize the copy of the RDBSSLIB library linked with the network driver. When the operating system is started, Windows loads RDBSS and any network mini-redirector drivers based on settings in the registry.