diff options
| author | ume <ume@FreeBSD.org> | 2013-01-09 18:18:08 +0000 |
|---|---|---|
| committer | ume <ume@FreeBSD.org> | 2013-01-09 18:18:08 +0000 |
| commit | e33acd92c323d70e5d6df57f002fc99962711614 (patch) | |
| tree | d47e3ff0e4eea1ed47efa711fb58f1061db36182 /sys/netinet6 | |
| parent | dc876f51b7413aaa22e802a6b7fd911229c8f410 (diff) | |
| download | FreeBSD-src-e33acd92c323d70e5d6df57f002fc99962711614.zip FreeBSD-src-e33acd92c323d70e5d6df57f002fc99962711614.tar.gz | |
Add no_prefer_iface option.
It stops treating the address on the interface as special by source
address selection rule even when the interface is outgoing interface.
This is desired in some situation.
Requested by: hrs
Reviewed by: IHANet folks including hrs
MFC after: 1 week
Diffstat (limited to 'sys/netinet6')
| -rw-r--r-- | sys/netinet6/in6_src.c | 10 | ||||
| -rw-r--r-- | sys/netinet6/nd6.h | 1 |
2 files changed, 7 insertions, 4 deletions
diff --git a/sys/netinet6/in6_src.c b/sys/netinet6/in6_src.c index fb7e6f0..8d04c46 100644 --- a/sys/netinet6/in6_src.c +++ b/sys/netinet6/in6_src.c @@ -383,10 +383,12 @@ in6_selectsrc(struct sockaddr_in6 *dstsock, struct ip6_pktopts *opts, */ /* Rule 5: Prefer outgoing interface */ - if (ia_best->ia_ifp == ifp && ia->ia_ifp != ifp) - NEXT(5); - if (ia_best->ia_ifp != ifp && ia->ia_ifp == ifp) - REPLACE(5); + if (!(ND_IFINFO(ifp)->flags & ND6_IFF_NO_PREFER_IFACE)) { + if (ia_best->ia_ifp == ifp && ia->ia_ifp != ifp) + NEXT(5); + if (ia_best->ia_ifp != ifp && ia->ia_ifp == ifp) + REPLACE(5); + } /* * Rule 6: Prefer matching label diff --git a/sys/netinet6/nd6.h b/sys/netinet6/nd6.h index 1655a6c..94202e1 100644 --- a/sys/netinet6/nd6.h +++ b/sys/netinet6/nd6.h @@ -86,6 +86,7 @@ struct nd_ifinfo { #define ND6_IFF_DONT_SET_IFROUTE 0x10 #define ND6_IFF_AUTO_LINKLOCAL 0x20 #define ND6_IFF_NO_RADR 0x40 +#define ND6_IFF_NO_PREFER_IFACE 0x80 /* XXX: not related to ND. */ #define ND6_CREATE LLE_CREATE #define ND6_EXCLUSIVE LLE_EXCLUSIVE |
