Unimplemented control 256 for VxD device VNETBIOS

Bobby Bingham uhmmmm at ameritech.net
Thu Oct 18 05:33:52 CDT 2001

in linux you can find it in /proc/net/arp, but i don't know if there's a
more portable way.  Maybe check ifconfig source?

Bobby Bingham

On Thu, Oct 18, 2001 at 12:21:35PM +0200, Patrik Stridvall wrote:
> > I am going to migrate the EDA software environment from Windows NT to 
> > Linux but I have still some software components requireing Windows. 
> > That's why I use Wine. I own and use some software packages 
> > licensed to 
> > a valid MAC address (flexlm MAC based license) and the 
> > corresponding NIC 
> > is present in the Linux system.
> > 
> > Using wine-20010824 I get the following message:
> > 
> > fixme:win32:DeviceIoControl Unimplemented control 256 for VxD device 
> Given what you said above I wouldn't be entirely suprised if
> control 256 of VNETBIOS return the MAC address.
> However...
> > I scanned the Web resources and studied the file 'win32/device.c' a 
> > little bit but I got no answers to my questions. Is there already a 
> > solution/implementation for this service? I am also ready to 
> > contribute 
> > (at least I hope I'm able to do so and it would be fun ;-) but I need 
> > some advice (docus, especially related to the VNETBIOS VxD and some 
> > general hints).
> ... documentation for VxD:s is virtually non existant.
> Find out how VxD:s work generally involves low level reverse engineering.
> > I'm looking forward for any hints.
> Hmm. Reading MSDN...
> There is a DLL called NETAPI32.DLL that is not currentlu implemented in Wine
> that has a function Netbios that possible calls the VNETBIOS VxD.
> Perhaps implementing this DLL in Wine would help at least it would be
> better than trying the figure out what the VNETBIOS VxD does.
> The function Netbios in NETAPI32.DLL is at least documented.
> Hmm. Reading some more...
> Netbios has a command NCBASTAT that retreives the adapter status
> in a structure called ADAPTER_STATUS that has a field:
> UCHAR adapter_address[6]; // Specifies encoded address of the adapter. 
> This might be the MAC address.
> Implementing this in Wine wouldn't be that hard.
> If Linux provides a way to get the MAC that is.
> I assume Linux does but I don't know how. Does anybody else know?

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