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Date: Fri, 7 Mar 2008 22:04:10 -0800 From: Greg KH <greg@...ah.com> To: "Serge E. Hallyn" <serue@...ibm.com> Cc: Pavel Emelyanov <xemul@...nvz.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org, menage@...gle.com, sukadev@...ibm.com Subject: Re: [PATCH 5/9] Make use of permissions, returned by kobj_lookup On Fri, Mar 07, 2008 at 12:50:52PM -0600, Serge E. Hallyn wrote: > Quoting Greg KH (greg@...ah.com): > > On Fri, Mar 07, 2008 at 11:35:42AM -0600, Serge E. Hallyn wrote: > > > > Do you really want to run other LSMs within a containerd kernel? Is > > > > that a requirement? It would seem to run counter to the main goal of > > > > containers to me. > > > > > > Until user namespaces are complete, selinux seems the only good solution > > > to offer isolation. > > > > Great, use that instead :) > > That can't work as is since you can't specify major:minor in policy. Your LSM can not, or the LSM interface does not allow this to happen? > So all we could do again is simply refuse all mknod, which we can > already do with per-process capability bounding sets. I thought we passed that info down to the LSM module, can't you do your selection at that point in time? And then, just mediate open() like always, right? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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