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Date:      Fri, 3 Sep 2010 20:40:01 +0200
From:      David DEMELIER <demelier.david@gmail.com>
To:        Roland Smith <rsmith@xs4all.nl>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: watch(8) does not work in jails
Message-ID:  <AANLkTikcUfDos5sobb4FG-LPJuAEZMJp4mcZ1UAsOEkr@mail.gmail.com>
In-Reply-To: <20100816225715.GA35248@slackbox.erewhon.net>
References:  <AANLkTikPvVqcOAdk3EJBmmP-6_AkFs-TuQnNqbi2r=Vr@mail.gmail.com> <20100816181703.GB66710@slackbox.erewhon.net> <AANLkTiku2SzjSVrSj3eZJnoY0dwbX4piKwOZ6R5ieoes@mail.gmail.com> <20100816225715.GA35248@slackbox.erewhon.net>

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2010/8/17 Roland Smith <rsmith@xs4all.nl>:
> On Tue, Aug 17, 2010 at 12:09:23AM +0200, David DEMELIER wrote:
>> > Does /dev/pts/0 actually exist in the jail's devfs instance, and are i=
ts
>> > permissions correct?
>> >
>>
>> (In jail) :
>>
>> # ls -l /dev/pts/*
>> crw--w---- =C2=A01 markand =C2=A0tty =C2=A0 =C2=A00, =C2=A094 17 Aug 00:=
06 /people/dev/pts/0
>> crw--w---- =C2=A01 markand =C2=A0tty =C2=A0 =C2=A00, =C2=A096 17 Aug 00:=
06 /people/dev/pts/1
>> crw--w---- =C2=A01 root =C2=A0 =C2=A0 tty =C2=A0 =C2=A00, 101 21 Jul 00:=
07 /people/dev/pts/2
>> crw--w---- =C2=A01 markand =C2=A0tty =C2=A0 =C2=A00, 108 17 Aug 00:06 /p=
eople/dev/pts/3
>> crw--w---- =C2=A01 markand =C2=A0tty =C2=A0 =C2=A00, =C2=A099 16 Aug 01:=
28 /people/dev/pts/4
>> crw--w---- =C2=A01 markand =C2=A0tty =C2=A0 =C2=A00, 112 17 Aug 00:05 /p=
eople/dev/pts/5
>> crw--w---- =C2=A01 root =C2=A0 =C2=A0 tty =C2=A0 =C2=A00, 111 17 Aug 00:=
06 /people/dev/pts/6
>> crw--w---- =C2=A01 root =C2=A0 =C2=A0 tty =C2=A0 =C2=A00, 114 16 Aug 23:=
53 /people/dev/pts/7
>> crw--w---- =C2=A01 root =C2=A0 =C2=A0 tty =C2=A0 =C2=A00, 100 17 Aug 00:=
06 /people/dev/pts/8
>
> I think you mounted your devfs incorrectly or you started the jail in the
> wrong directory. If ls is run inside the jail, it should be /dev/pts/N, n=
ot
> /people/dev/pts/N!
>
> Roland
> --
> R.F.Smith =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 http://www.xs4all.n=
l/~rsmith/
> [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated]
> pgp: 1A2B 477F 9970 BA3C 2914 =C2=A0B7CE 1277 EFB0 C321 A725 (KeyID: C321=
A725)
>

Sorry I made a mistake while I was writing. In fact there is the
permissions in the jail :

markand@Orange ~ $ sudo jexec 1 tcsh
# su -
People# ls -l /dev/pts/*
crw--w----  1 zazak  tty    0, 118  3 Sep 20:39 /dev/pts/0
crw--w----  1 zazak  tty    0,  99  3 Sep 07:07 /dev/pts/4
crw--w----  1 zazak  tty    0,  94  3 Sep 20:39 /dev/pts/6
People# who
zazak           pts/0     1 Sep 19:07 (92.147.166.20:S.)
zazak           pts/4    10 Aug 16:00 (92.147.166.20:S.)
People# watch pts/0
watch: fatal: cannot open snoop device

And that's it.

--=20
Demelier David



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