From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell Coker Reply-To: russell@coker.com.au To: Stephen Smalley Subject: Re: MCS and default labels Date: Sun, 27 Sep 2009 17:34:21 +1000 Cc: Michal Svoboda , selinux@tycho.nsa.gov References: <20090908055806.GA24297@myhost.felk.cvut.cz> <20090909100647.GE24297@myhost.felk.cvut.cz> <1252498660.13634.618.camel@moss-pluto.epoch.ncsc.mil> In-Reply-To: <1252498660.13634.618.camel@moss-pluto.epoch.ncsc.mil> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200909271734.23340.russell@coker.com.au> Sender: owner-selinux@tycho.nsa.gov List-Id: selinux@tycho.nsa.gov On Wed, 9 Sep 2009, Stephen Smalley wrote: > > > > Secondly I don't see why a user is not able to discretionarily > > > > specify his range outright when going via ssh just as he can with > > > > roles. > > > > > > That's another artifact of the MLS model (label preservation / > > > confinement). > > > > Unfortunately here I have no idea on what code should I look to remove > > that artifact. > > I think it is just lack of support in sshd due to lack of interest in > supporting it for MLS.  You could add it, but you'd need to make sure > that it doesn't break the MLS behavior, as that is the one people care > about. If a user has a default range of A and they request a range of B then the same checks could be applied as for a runcon -l B operation when the source range was A. How could that break anything? -- russell@coker.com.au http://etbe.coker.com.au/ My Main Blog http://doc.coker.com.au/ My Documents Blog -- This message was distributed to subscribers of the selinux mailing list. If you no longer wish to subscribe, send mail to majordomo@tycho.nsa.gov with the words "unsubscribe selinux" without quotes as the message.