Re: RSBAC working with SGI XFS 1.0


From: K Mitchell Russell <kmrussel@hsc.vcu.edu>
Subject: Re: RSBAC working with SGI XFS 1.0
Date: Sun, 6 May 2001 14:02:52 -0400 (EDT)

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On Sat, 5 May 2001, K Mitchell Russell wrote:

> 1) I recall Stanislav Ievlev submitted on April 3rd a problem with
> rsbac_check() on reiserfs.  I decided to enable CONFIG_RSBAC_INIT_CHECK
> to test this on XFS.  On first boot, it detects bad inodes:
> <log clipped>
> But then system comes up fine.  On second boot, everything seems OK:
> <log clipped>
> Looks to me like rsbac_check() checks out OK here, and system seems to
> run fine.  Any comments?  Would it be reasonably safe to continue with
> the CONFIG_RSBAC_INIT_CHECK with these results?

By the way, there are no errors reported from xfs_check on root
filesystem afterwards.  As I understand it (from bugfixes) the problem
with ReiserFS was that it complains about bad inode after RSBAC removes
entry for inode.

> 
> 2) XFS provides ACLs as well as RSBAC providing ACL module.  I have not
> delved into this yet, but I assume these are completely different ACLs
> (i.e. I cannot access ACLs set in XFS through RSBAC ACL module).  Even
> if the two are not compatible, I hope they may co-exist in benevolence.
> I will continue to explore this, however if anyone with more knowledge
> about it would care to comment, I would very much appreciate it.

Apparently XFS supports the ACL semantics and interfaces described in
the draft POSIX 1003.1e standard.

Regards,
Mitchell
________________________________________________________________________
K. Mitchell Russell, M.D.                        |  kmrussel@hsc.vcu.edu
Research Fellow, MedITAC Research Lab            |  www.meditac.com

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