From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: David Howells <dhowells@redhat.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>,
Karl MacMillan <kmacmill@redhat.com>,
jmorris@namei.org, chrisw@sous-sol.org, selinux@tycho.nsa.gov,
linux-kernel@vger.kernel.org, aviro@redhat.com
Subject: Re: Security issues with local filesystem caching
Date: Thu, 02 Nov 2006 16:24:27 -0500 [thread overview]
Message-ID: <1162502667.6071.66.camel@lade.trondhjem.org> (raw)
In-Reply-To: <32754.1162499917@redhat.com>
On Thu, 2006-11-02 at 20:38 +0000, David Howells wrote:
> Trond Myklebust <trond.myklebust@fys.uio.no> wrote:
>
> > Just why are you doing all this? Why do we need a back-end that requires
> > all this extra client-side security infrastructure in order to work?
>
> Well, both Christoph and Al are of the opinion that I should be using
> vfs_mkdir() and co rather than bypassing the security and calling inode ops
> directly.
...but why are you needing to call vfs_mkdir? I thought the standard
cachefs backend just uses a pool of files, rather like the original AFS
cache did. Are you trying to mirror the layout and the permissions of
the NFS filesystem? That is a lot more work than it is worth...
> Also I should be setting security labels on the files I create.
To what end? These files shouldn't need to be made visible to userland
at all.
Cheers,
Trond
next prev parent reply other threads:[~2006-11-02 21:24 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-25 10:14 David Howells
2006-10-25 16:52 ` Nate Diller
2006-10-25 16:48 ` Jeff V. Merkey
2006-10-25 17:21 ` David Howells
2006-10-25 17:42 ` Jeff V. Merkey
2006-10-25 18:15 ` David Howells
2006-10-25 20:21 ` Josef Sipek
2006-10-25 20:28 ` Josef Sipek
2006-10-25 21:12 ` Stephen Smalley
2006-10-25 23:37 ` Alan Cox
2006-10-26 0:32 ` Al Viro
2006-10-26 10:54 ` Alan Cox
2006-10-26 10:45 ` David Howells
2006-10-26 9:14 ` Jan Dittmer
2006-10-26 11:52 ` Alan Cox
2006-10-26 9:56 ` David Howells
2006-10-27 15:54 ` Josef Sipek
2006-10-26 10:40 ` David Howells
2006-10-26 12:51 ` Stephen Smalley
2006-10-26 16:04 ` David Howells
2006-10-26 16:34 ` Stephen Smalley
2006-10-26 17:09 ` David Howells
2006-10-26 17:45 ` Stephen Smalley
2006-10-26 22:53 ` David Howells
2006-10-27 14:48 ` Stephen Smalley
2006-10-27 15:42 ` David Howells
2006-10-27 16:10 ` Stephen Smalley
2006-10-27 16:25 ` David Howells
2006-10-27 17:09 ` Stephen Smalley
2006-10-27 17:34 ` David Howells
2006-10-27 14:41 ` David Howells
2006-10-26 10:55 ` David Howells
2006-10-31 21:26 ` David Howells
2006-11-01 13:28 ` Stephen Smalley
2006-11-01 15:34 ` David Howells
2006-11-01 15:58 ` Karl MacMillan
2006-11-01 17:45 ` Stephen Smalley
2006-11-02 16:29 ` Karl MacMillan
2006-11-02 18:04 ` Stephen Smalley
2006-11-01 17:30 ` Stephen Smalley
2006-11-02 17:16 ` David Howells
2006-11-02 19:49 ` Trond Myklebust
2006-11-02 20:33 ` Stephen Smalley
2006-11-02 20:38 ` David Howells
2006-11-02 21:24 ` Trond Myklebust [this message]
2006-11-03 10:27 ` David Howells
2006-11-03 13:41 ` Trond Myklebust
2006-11-03 15:23 ` David Howells
2006-11-03 17:30 ` Trond Myklebust
2006-11-14 19:22 ` David Howells
2006-11-15 14:05 ` Trond Myklebust
2006-11-15 15:28 ` David Howells
2006-11-15 16:41 ` Trond Myklebust
2006-11-15 18:17 ` David Howells
2006-11-03 15:33 ` David Howells
2006-11-02 21:05 ` David Howells
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