Date: Sat, 23 Jun 2018 11:58:59 -0700 From: Eitan Adler <lists@eitanadler.com> To: James Gritton <jamie@freebsd.org> Cc: bsd-lists@bsdforge.com, freebsd-jail@freebsd.org, freebsd-stable Stable <freebsd-stable@freebsd.org> Subject: Re: jail related inconsistencies in FreeBSD tools parameters Message-ID: <CAF6rxgkdtZ81mWQty6KjqUiAH-p6=fNXfm4g03EL4V%2B00Q3KAg@mail.gmail.com> In-Reply-To: <51718e96f63175e997cb8268381d1070@freebsd.org> References: <6dd9952452c73826a2f9c01612586bea@udns.ultimatedns.net> <d2068437-672c-5472-0480-86fd094a8143@quip.cz> <18000a3b93085c91aeffbca937862786@freebsd.org> <CAF6rxgmpRTiqd5yA6C9crjz8M-gJXWcS2Q1bCSjQpZS45QRRfA@mail.gmail.com> <51718e96f63175e997cb8268381d1070@freebsd.org>
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On 23 June 2018 at 08:50, James Gritton <jamie@freebsd.org> wrote: > On 2018-06-23 09:45, Eitan Adler wrote: >> >> On 23 June 2018 at 08:30, James Gritton <jamie@freebsd.org> wrote: >>> >>> On 2018-06-22 16:03, Miroslav Lachman wrote: >>>> >>>> >>>> Chris H wrote on 2018/06/22 23:46: >>>>> >>>>> >>>>> On Fri, 22 Jun 2018 23:13:17 +0200 "Miroslav Lachman" >>>>> <000.fbsd@quip.cz> >>>>> said >>>>> >>>>>> I don't know if it is better to discuss it in jail@ or stable@ list so >>>>>> a >>>>>> do cross-post. >>>>>> >>>>>> FreeBSD has many jail aware utilities but they are inconsistent in >>>>>> taking JID as parameter. >>>>>> >>>>>> For example "sockstat" takes -j JID "Show only sockets belonging to >>>>>> the >>>>>> specified jail ID" and it means numeric ID only. >>>>>> On the other hand "ps" takes -J JID "This may be either the jid or >>>>>> name >>>>>> of the jail. Use -J 0 to display only host processes." >>>>>> The same apply for "top", it understands jid as a number or name of >>>>>> the >>>>>> jail too. >>>>>> Then again "cpuset" takes only numerical ID of the jail... >>>>>> >>>>>> Shouldn't it be consistent across all FreeBSD base utilities so all of >>>>>> them can use numerical ID and name? >>>>> >>>>> >>>>> Good idea! Are you offering to create a patch? ;-) >>>>> It'd be my guess that given they weren't all created at the same time, >>>>> nor >>>>> the same individual; that (quite probably?) the "jail" additions were >>>>> also >>>>> added at different times, and by different people. So I'd imagine that >>>>> unless someone with a commit bit decides one day they'd like to take >>>>> that >>>>> on. Someone(tm) maybe you? will need to propose a patch. :-) >>>> >>>> >>>> >>>> If I can understand C sources I will create the patch by myself >>>> instead of just posting here. Unfortunately I am able to code in sh, >>>> php and a bit of javascript and perl but no C. :) >>>> >>>> Miroslav Lachman >>> >>> >>> >>> Sure, a PR would be handy for this - it's a pretty simple thing to add, >>> and >>> consistency would indeed be a good move. >> >> >> Agreed. I'll review and commit such patches. I'd like to see a single >> function for taking a "id or name". Ideally it would live in a >> library, perhaps libjail? > > > It already lives there: jail_getid(3) I was thinking of a more generic one that does id or name. Now that I think about it a bit more, C makes this kind of thing impossible to do usefully. That said, I'll still review and commit any patches to existing tools to make them behave consistently. -- Eitan Adler
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