linux-kernel - Re: [patch 01/15] security: pass path to inode

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Message-ID: <20080602185953.GA14108@us.ibm.com>
Date:	Mon, 2 Jun 2008 13:59:53 -0500
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Miklos Szeredi <miklos@...redi.hu>,
	linux-security-module@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, jmorris@...ei.org,
	sds@...ho.nsa.gov, eparis@...hat.com, casey@...aufler-ca.com,
	agruen@...e.de, jjohansen@...e.de,
	penguin-kernel@...ove.SAKURA.ne.jp, viro@...IV.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 01/15] security: pass path to inode_create

Quoting Christoph Hellwig (hch@...radead.org):
> On Mon, Jun 02, 2008 at 11:52:52AM +0200, Miklos Szeredi wrote:
> > These patches fix several issues raised at previous submissions:
> > 
> >  - passing NULL vfsmounts
> >  - using nameidata
> >  - using extra stack for vfsmount argument
> > 
> > So, it seems to me that there's in fact no issues remaining and the
> > best excuse you can come up with is that it's a dumb idea.  Well,
> > that's not a very imressive technical argument IMNSHO.
> 
> Well, pathname based access control is a dumb idea, and we've been
> through this N times.  You've also been told that vfs_ routines should
> remain without vfsmount, and no that's not a stack-related issue no idea
> where that part came from.

Sorry, noone else asked, so just out of curiosity - the *actual* reason
is api layering?  Or am I missing another reason?

thanks,
-serge
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