Re: mtree acl support

On Jan 14, 2014, at 6:47 AM, Mark Felder <feld@freebsd.org> wrote:

> I was recently talking to someone about how one would backup / restore
> ACLs reliably. I didn't see any mention of ACLs in the mtree man page
> and after a quick google I came upon this old mailing list post:
> =

> http://lists.freebsd.org/pipermail/freebsd-hackers/2008-April/024173.html
> =

> patch in list is here: http://heka.cenkes.org/sat/diffs/mtree_acl.diff
> I've mirrored it here: https://feld.me/freebsd/mtree_acl.diff
> =

> This old patch appears to still apply cleanly. I hate to see a patch die
> and be forgotten.

One problem that =91tar=92 has addressed (inspired by Joerg Schilling=92s
work on star) is to permit ACLs to be restored even if the user database
is out of date.

This is done by including a fourth field in each ACE with the
numeric user ID.

I suspect you want to do the same for mtree.  I thought
I remembered acl_to_text having an option to use
an extended text format, so it might be a trivial change.

Tim

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