K 10
svn:author
V 2
ae
K 8
svn:date
V 27
2018-10-21T18:06:15.252251Z
K 7
svn:log
V 458
Add handling for appearing/disappearing of ingress addresses to if_gif(4).

* register handler for ingress address appearing/disappearing;
* add new srcaddr hash table for fast softc lookup by srcaddr;
* when srcaddr disappears, clear IFF_DRV_RUNNING flag from interface,
  and set it otherwise;
* remove the note about ingress address from BUGS section.

MFC after:	1 month
Sponsored by:	Yandex LLC
Differential Revision:	https://reviews.freebsd.org/D17134

END