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[Linux-cachefs] Re: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13]



On Thu, 2006-09-07 at 02:17 -0400, Trond Myklebust wrote:
> On Thu, 2006-09-07 at 13:30 +0800, Ian Kent wrote:
> > On Wed, 2006-09-06 at 14:24 +0100, David Howells wrote:
> > > Trond Myklebust <trond myklebust fys uio no> wrote:
> > > 
> > > > It really doesn't matter whether there is a symlink or not. automounters
> > > > should _not_ be trying to create directories on any filesystem other
> > > > than the autofs filesystem itself.
> > > 
> > > Yes, I agree.
> > 
> > Not really.
> > 
> > What about multiple recursive bind mounts?
> > What about the initial directory for the autofs mount itself?
> > 
> > What about the case where a admin expects autofs to create these
> > directories for map entries that have multiple offsets.
> > 
> > As I've said before in version 5 I'm saying that it is a requirement
> > that the the directories already exist in this case but in version 4
> > people may have become accustomed to this behavior and right or wrong
> > this type of change shouldn't be made without warning to the users or
> > possibly not made at all.
> 
> What part of the phrase "security risk" are you failing to understand?
> If anybody out there is actually relying on having an automounter daemon
> that is running with root privileges try to create directories on remote
> servers on the basis of the output of the 'showmount' command, then they
> need saving from themselves.
> 

Haha ... point taken.


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