Re: More KAUTH_GENERIC_ISSUSER replacements

[Elad Efrat <elad%NetBSD.org@localhost>]

On Mon, Apr 27, 2009 at 7:44 AM, matthew green <mrg%eterna.com.au@localhost> 
wrote:
>
>     - KAUTH_SYSTEM_MOUNT::KAUTH_REQ_SYSTEM_MOUNT_UMAP: special request for
>       mounting a umapfs. See miscfs/umapfs/umap_vfsops.c.
>
>
> i don't like this one.  it is extremely specific and only applies to
> a filesystem that almost nobody uses.  i don't see why umapfs has any
> difference to any other fs or mount user, is there any particular
> reason it needs to be special cased?

I don't like it either, but this is a special case, yes. See:

http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA1999-006.txt.asc

and

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/miscfs/umapfs/umap_vfsops.c#rev1.21

Thanks,

-e.