[openib-general] Should I use umad -or- osm

Michael S. Tsirkin mst at mellanox.co.il
Thu Dec 9 09:07:14 PST 2004


Hello!
Quoting r. shaharf (shaharf at voltaire.com) "RE: [openib-general] Should I use umad -or- osm":
> 
> 
> > -----Original Message-----
> > From: Michael S. Tsirkin [mailto:mst at mellanox.co.il]
> > Sent: Thursday, December 09, 2004 6:53 PM
> > To: Philip Mucci
> > Cc: shaharf; openib-general at openib.org
> > Subject: Re: [openib-general] Should I use umad -or- osm
> > 
> > Its clearly not a great idea to let non-root inject arbitrary MADs
> > into the system ,is it?
> > 
> > MST
> 
> I guess that in this stage only root will able to use user mode mads.
> Later I would consider letting non-root applications use some mads -
> meaning most of the get/query mads, and some of the set mads. I won't
> rely on root access for security. There are mkey, qkey and pkey to
> handle that.
> 
> Shahar

They are trivial to guess, so kernel would have to touch the MAD
data somehow?
Further, it seems local MADs have the check disabled now?

MST



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