K 10
svn:author
V 2
kp
K 8
svn:date
V 27
2020-10-13T11:04:00.248707Z
K 7
svn:log
V 375
pf: do not remove kifs that are referenced by rules

Even if a kif doesn't have an ifp or if_group pointer we still can't delete it
if it's referenced by a rule. In other words: we must check rulerefs as well.

While we're here also teach pfi_kif_unref() not to remove kifs with flags.

Reported-by: syzbot+b31d1d7e12c5d4d42f28@syzkaller.appspotmail.com
MFC after:   2 weeks

END