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svn:author
V 2
kp
K 8
svn:date
V 27
2015-06-18T20:59:48.940998Z
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V 428
Merge r281536

pf: Fix forwarding detection

If the direction is not PF_OUT we can never be forwarding. Some input packets
have rcvif != ifp (looped back packets), which lead us to ip6_forward() inbound
packets, causing panics.

Equally, we need to ensure that packets were really received and not locally
generated before trying to ip6_forward() them.

Differential Revision:	https://reviews.freebsd.org/D2822
Reviewed by:	gnn

END