Roland, I've been thinking about this some more and I have to say I'm still a bit confused. Are you saying that any root user on any node of the fabric can change the routing tables? Isn't the ability to access and alter subnet information controlled via the management key?
-- Michael Heinz Principal Engineer, Qlogic Corporation King of Prussia, Pennsylvania -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Heinz Sent: Monday, September 22, 2008 3:19 PM To: Roland Dreier Cc: general@lists.openfabrics.org Subject: RE: [ofa-general] Allowing end-users to query for fabric information Thanks for the explanation. -- Michael Heinz Principal Engineer, Qlogic Corporation King of Prussia, Pennsylvania -----Original Message----- From: Roland Dreier [mailto:[EMAIL PROTECTED] Sent: Monday, September 22, 2008 3:18 PM To: Mike Heinz Cc: general@lists.openfabrics.org Subject: Re: [ofa-general] Allowing end-users to query for fabric information > What was the reason for making this design choice? While I could > certainly provide boot scripts to change the permissions to > /dev/infiniband/umad*, I'd rather understand why the decision was made > to restrict access. because /dev/infiniband/umadX allows full unfiltered access to send/receive any MADs. Including changing routing tables, bringing ports down, etc. Not stuff that unprivileged users should be able to do. It would make sense to have a higher-level interface that only allows safe queries without side effects, but that's quite a bit more work than just changing permissions on device nodes. - R. _______________________________________________ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
