Messages in this thread | | | Date | Mon, 18 Sep 2006 14:04:24 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 3/4] security: capabilities patch (version 0.4.4), part 3/4: introduce new capabilities |
| |
Hi!
> > > The benefits of this are so minuscule and the cost is so high if you are > > > ever to use it that it simply won't happen.. > > > > I'm withdrawing that patch anyway, in favor of a LSM-style approach, > > the "cuppabilities" module (cf. the patch I posted a couple of hours > > ago with that word in the title, and I'll be posting a new version in > > a day or so, or cf. <URL: > > http://www.madore.org/~david/linux/cuppabilities/ > > >). In this case, the relative cost will be lower since the > > security_ops->inode_permission() hook is called no matter what. > > > > You misunderstand. I don't mean the performance cost is high, I mean the > cost of an application to actually be able to run without open() (what I > was saying before, static built, no glibc, no conf files, no name > lookups, etc). I never see this being used in the real world because of > the extreme limitations.
It is already being used. See config_seccomp. Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |