Re: jls(8), jexec(8) and jail_attach(2) port

[David Rhodus <drhodus@xxxxxxxxxxx>]

Great Paul, I've had those floating around in the back of
my mind for a while as I use a lot of jails for different application
testing. I'll most defiantly take a look at your work when I get
to the lab in the morning.

-DR
On Mar 21, 2004, at 6:27 PM, Paul Herman wrote:

> Hi,
>
> I've ported jls(8) & jexec(8) from FreeBSD to DragonFly.  This
> let's you list the active jails and execute commands in them.  It
> works for me, but I'm sure there is room for improvement.  I've
> attached two files:
>
>   * tar file to be extracted in /usr/src.  Sorry it's not a patch(1)
>     file, I can't get patch(1) to create files.  Something like this
>     should do the trick:
>       + cd /usr/src && tar xzf jail.tar.gz
>       + cd sys/kern && make sysent
>       + cd /usr/src && make world
>
>   * a side dish of mdoc patch to update FreeBSD versions and fix a
>     <tab> character in the DragonFly declaration.
>
> There is one known bug (see "Minor jail bug..." post to bugs@
> yesterday) which leaves a jail hanging around upon exit if you
> fork/exec a process inside a jail.  At the moment I'm not quite
> sure how that should be addressed.
>
> I'm also not sure how to lock the prisons structure in critical
> sections (crit_enter()/crit_exit() seems kinda harsh) so any
> tips/suggestions are welcome.  Other than that, enjoy!
>
> -Paul.<jail.tar.gz><mdoc.patch.gz>