[Bug 276862] vnet doesnt release iface after running openvpn

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276862

--- Comment #9 from Peter Much <pmc@citylink.dinoex.sub.org> ---
(In reply to Konstantin Belousov from comment #8)

I'm not sure I understand your question, but I think the correct answer is No.

I always destroy my tun devices before terminating the jail, because openvpn
runs in chroot and fails to do so. And I've learned that one has to be 100%
tidy for vnet to work smoothly.


I just looked what Your code precisely does here in my testsuite:

ifconfig tun42 create
     runs tun_clone_create(), clone_create() returns 1.
  -> no problem.

cat /dev/tun43
     runs tunclone(), clone_create() returns 1;
     runs tun_clone_create(), clone_create() returns 0;
     dev_ref() sets dev->si_refcount to 3.
  -> jid is now indestructible.

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