Ugh! :\ You're right, and that sysctl is not allowed by pledge(2).
Please disregard this diff.
On 18:00 Fri 16 Jun , Sebastien Marie wrote:
> On Fri, Jun 16, 2017 at 03:53:09PM +0100, Ricardo Mestre wrote:
> > Hi tech@
> >
> > rebound(8)'s parent proc doesn't seem to need much permissions to do what it
> > needs, here is the pledge for the parent for the following promises:
> >
> > rpath: reload the configuration at reexec time (see below)
> > proc/exec: needed to reexec itself and kill child if needed
> >
>
> rebound will not be able to restore dnsjacking on exit.
>
> there is an atexit() call with resetport function.
>
> At exit, the function should be able to set { CTL_KERN, KERN_DNSJACKPORT },
> and it will not be able to do that if pledged.
>
> --
> Sebastien Marie
