diff options
Diffstat (limited to 'sys/netinet/in_gif.c')
| -rw-r--r-- | sys/netinet/in_gif.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sys/netinet/in_gif.c b/sys/netinet/in_gif.c index c4df3b3..832c233 100644 --- a/sys/netinet/in_gif.c +++ b/sys/netinet/in_gif.c @@ -177,13 +177,19 @@ in_gif_input(struct mbuf **mp, int *offp, int proto) static int gif_validate4(const struct ip *ip, struct gif_softc *sc, struct ifnet *ifp) { + int ret; GIF_RLOCK_ASSERT(sc); /* check for address match */ - if (sc->gif_iphdr->ip_src.s_addr != ip->ip_dst.s_addr || - sc->gif_iphdr->ip_dst.s_addr != ip->ip_src.s_addr) + if (sc->gif_iphdr->ip_src.s_addr != ip->ip_dst.s_addr) return (0); + ret = 32; + if (sc->gif_iphdr->ip_dst.s_addr != ip->ip_src.s_addr) { + if ((sc->gif_options & GIF_IGNORE_SOURCE) == 0) + return (0); + } else + ret += 32; /* martian filters on outer source - NOT done in ip_input! */ if (IN_MULTICAST(ntohl(ip->ip_src.s_addr))) @@ -214,7 +220,7 @@ gif_validate4(const struct ip *ip, struct gif_softc *sc, struct ifnet *ifp) } RTFREE_LOCKED(rt); } - return (32 * 2); + return (ret); } /* |
