linux-kernel - Re: [PATCH] 9p: rename uid and gid parameters

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Date:	Thu, 13 Sep 2007 08:51:21 -0600
From:	"Latchesar Ionkov" <lucho@...kov.net>
To:	"Eric Van Hensbergen" <ericvh@...il.com>
Cc:	linux-kernel@...r.kernel.org, v9fs-developer@...ts.sourceforge.net,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] 9p: rename uid and gid parameters

Zero was the value that was used before, even though it wasn't defined
explicitly. I just defined a macro so we can see and eventually change
it to something better. I don't know if there is a good default value.
Is nfsnobody the same on all Linux distributions?

Thanks,
    Lucho

On 9/13/07, Eric Van Hensbergen <ericvh@...il.com> wrote:
> On 9/12/07, Latchesar Ionkov <lucho@...kov.net> wrote:
> > Change the names of 'uid' and 'gid' parameters to the more appropriate
> > 'dfltuid' and 'dfltgid'.
> >
>
> ...
>
> >         strcpy(v9ses->name, V9FS_DEFUSER);
> >         strcpy(v9ses->remotename, V9FS_DEFANAME);
> > +       v9ses->dfltuid = V9FS_DEFUID;
> > +       v9ses->dfltgid = V9FS_DEFGID;
> >
> ...
> > +#define V9FS_DEFUID    (0)
> > +#define V9FS_DEFGID    (0)
>
> I'm not sure if there is a good solution here, but I'm uncomfortable
> with using uid=0 as the default.  I'm not sure if there is a default
> uid for nobody, but anything is probably better than 0.  Looks like
> nfsnobody is 65534, we could use that - even if only as a marker for
> the server to map it to nobody on the target system?  What do you
> think?
>
> Particularly with attach-per-user, we probably need to look at
> interacting with idmapd or create our own variant real soon.
>
>               -eric
>
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