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From: Melvyn Sopacua <freebsd-current@webteckies.org>
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Date: Sun, 15 Feb 2004 21:09:47 +0100
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Subject: Re: Jails that keep hanging around
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On Sunday 15 February 2004 20:56, Maxim Konovalov wrote:
> On Sun, 15 Feb 2004, 20:49+0100, Melvyn Sopacua wrote:
> > On Sunday 15 February 2004 19:44, Melvyn Sopacua wrote:
> > > (poking around sys/kern/kern_jail.c to try and get the value
> > > p->pr_ref).
> >
> > Ok, I'm stuck. How does one get a struct prison (read-only for all I
> > care), when only having a jail id, in userland?
>
> As I already wrote sysctl -o security.jail.list.

No, a 'struct prison' in C. All you get with sysctlbyname is xprison, which=
=20
doesn't expose the prison structure (which holds the refcount). Seems I'll=
=20
have to go through kvm_open -> proc -> td_ucred -> cr_prison and some=20
forking.
=2D-=20
Melvyn

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
=46reeBSD sarevok.webteckies.org 5.2-CURRENT FreeBSD 5.2-CURRENT #1: Sat Fe=
b 14=20
02:48:30 CET 2004    =20
root@sarevok.webteckies.org:/usr/obj/usr/src/sys/SAREVOK_NOAPM_NODEBUG  i386
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

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