linux-kernel - Re: [AppArmor 39/45] AppArmor: Profile loading andmanipulation,pathname matching

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Message-Id: <200706170145.HBG40443.GTtNNPSM@I-love.SAKURA.ne.jp>
Date:	Sun, 17 Jun 2007 01:45:31 +0900
From:	Tetsuo Handa <from-lsm@...ove.SAKURA.ne.jp>
To:	greg@...ah.com
Cc:	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [AppArmor 39/45] AppArmor: Profile loading andmanipulation,pathname matching

Greg KH wrote:
> On Sun, Jun 17, 2007 at 12:44:08AM +0900, Tetsuo Handa wrote:
> > Can the daemon using inotify access to all pathnames in all process's
> > namespaces?
> 
> I don't see why not, do you?
> 
> > Are the namespace the daemon has and the namespace of pathnames
> > notified via inotify always the same?
> 
> If they are in the same namespace, then yes, they will as far as I can
> tell.  Do you think this is incorrect?

At least, I think SELinux's "make relabel" can't relabel
files that are not in the namespace of "make" process.

I don't know how to use inotify, but what I worried is ...

If there are cases they are in different namespace,
it is impossible to relabel using userland daemon
(i.e. deferred-relabeling won't work)
unless all pathnames of all namespaces are somehow
accessible via inotify.

Thanks.
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