The problem I was to fix had been fixed by dlg@'s commit today. https://marc.info/?l=openbsd-cvs&m=159538265604770&w=2
So the diff is not needed any more. Pointed out by dlg@. Thanks, On Wed, 22 Jul 2020 19:24:32 +0900 (JST) YASUOKA Masahiko <yasu...@openbsd.org> wrote: > Hi, > > Currently when using the real mac address for carp(4) interface, all > packets are treated as their receive inteface is carp. This causes > some problems. > > For example, IPv6 ndp doesn't work on an interface which is used for > carpdev. Because it is assumed that reply packets are received with > the same interface which is used to send out the request. > > ok? > > When realmac is used for carp(4), don't pass the packets through the > interface since they are for the real interface. > > Index: sys/netinet/ip_carp.c > =================================================================== > RCS file: /disk/cvs/openbsd/src/sys/netinet/ip_carp.c,v > retrieving revision 1.345 > diff -u -p -r1.345 ip_carp.c > --- sys/netinet/ip_carp.c 21 May 2020 05:24:59 -0000 1.345 > +++ sys/netinet/ip_carp.c 22 Jul 2020 09:52:20 -0000 > @@ -1418,6 +1418,14 @@ carp_input(struct ifnet *ifp0, struct mb > } > m_tag_prepend(m, mtag); > } > + > + /* > + * When carp is using realmac, since the matched MAC > + * address is for the real interface, the packets are > + * not for the carp interface. > + */ > + if (sc->sc_realmac) > + sc = NULL; > break; > } > } >
