linux-kernel - Re: [PATCH 0/2] implement uid mount option for ext2 and ext3

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Message-ID: <20090730090659.GC1364@ucw.cz>
Date:	Thu, 30 Jul 2009 11:07:28 +0200
From:	Pavel Machek <pavel@....cz>
To:	Ludwig Nussel <ludwig.nussel@...e.de>
Cc:	linux-fsdevel@...r.kernel.org, Valdis.Kletnieks@...edu,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] implement uid mount option for ext2 and ext3

Hi!

> > Hint:  This *same exact* problem has been an issue for NFS for at least 25
> > years. Might want to think about (a) why Yellow Pages (and later LDAP) was
> > developed, and (b) why NFS "root squash" traditionally maps to "nobody" rather
> > than a usable UID.
> 
> I don't see how that helps us here. Sure, a uid != 0 could be used
> for the mapping but which one? The uid of user 'nobody' is not the
> same across distros.

So just use -1 ? Having it map to root is dangerous AFAICT.
								Pavel

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