linux-kernel - Re: [AppArmor 01/41] Pass struct vfsmount to the inode

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Message-Id: <200705300010.55742.agruen@suse.de>
Date:	Wed, 30 May 2007 00:10:55 +0200
From:	Andreas Gruenbacher <agruen@...e.de>
To:	Tetsuo Handa <from-lsm@...ove.sakura.ne.jp>
Cc:	crispin@...ell.com, cliffe@...et.net.au, casey@...aufler-ca.com,
	mrmacman_g4@....com, linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [AppArmor 01/41] Pass struct vfsmount to the inode_create LSMhook

On Tuesday 29 May 2007 22:47, Tetsuo Handa wrote:
> AppArmor can't determine which pathname (/tmp/public/file or
> /tmp/secret/file) was requested by touch command if bound mount is used in
> the following way 
> 
> # mkdir /tmp/public /tmp/secret
> # mount -t tmpfs none /tmp/public
> # mount --bind /tmp/public /tmp/secret
> # touch /tmp/public/file
> 
> because security_inode_create() doesn't receive vfsmount, can it?

I don't know what you are talking about -- the very first patch in the 
AppArmor series adds the vfsmount parameter to security_inode_create().

Andreas
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