linux-kernel - Re: [RFC 0/28] Patches to pass vfsmount to LSM inode security hooks

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Message-Id: <200702051644.01701.agruen@suse.de>
Date:	Mon, 5 Feb 2007 16:44:01 -0800
From:	Andreas Gruenbacher <agruen@...e.de>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Tony Jones <tonyj@...e.de>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, chrisw@...s-sol.org,
	linux-security-module@...r.kernel.org, viro@...iv.linux.org.uk
Subject: Re: [RFC 0/28] Patches to pass vfsmount to LSM inode security hooks

On Monday 05 February 2007 10:44, Christoph Hellwig wrote:
> Just FYI:  Al was very opposed to the idea of passing the vfsmount to
> the vfs_ helpers, so you should discuss this with him.

The vfs_ helper functions are the ones calling the lsm hooks in many cases. 
Any lsm that makes pathname based decisions will need both the dentry and 
vfsmount for figuring out a file's pathname. I don't see a better way of 
passing that information to the lsm hooks than passing it through the vfs_ 
helpers.

Thanks,
Andreas
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