Date: Mon, 22 Apr 2013 21:37:31 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> To: Jamie Gritton <jamie@FreeBSD.org> Cc: freebsd-jail@FreeBSD.org Subject: Re: automatic garbage collection of stuff mounted (etc.) by jailed root Message-ID: <5175917B.4010504@quip.cz> In-Reply-To: <51758192.2050300@FreeBSD.org> References: <20130422091711.GA3115@dft-labs.eu> <517553B0.6010602@FreeBSD.org> <517575BF.8020305@quip.cz> <51758192.2050300@FreeBSD.org>
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Jamie Gritton wrote: > On 04/22/13 11:39, Miroslav Lachman wrote: >> Jamie Gritton wrote: >>> On 04/22/13 03:17, Mateusz Guzik wrote: >> >> [...] >> >>>> Again, the goal is to have jails clean up automatically after anything >>>> jailed root was permitted to do. >>>> >>>> Thoughts? >>> >>> This already happens when jails are created using a jail.conf file. Any >>> mounts there are unmounted as part of the jail removal process. Just >>> recently I fixed it to properly do this unmounting in reverse order. >> >> Do you mean mounts defined in jail.conf or all mounts manually done by >> root user in jail? >> >> Miroslav Lachman > > Ah, I see the difference. Yes, that's only for mounts in the jail.conf. > For mounts done by the jail itself, I guess we would go off the mount > record's credential. So is this something you expect to be happening > entirely in the kernel? I don't know what's the right place for this, but I am sure there should be something to clear these mounts made inside jails. Otherwise there will be unwanted leftovers after a jail restart / destroy. Miroslav Lachman
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