diff options
Diffstat (limited to 'sys/netinet/in.c')
| -rw-r--r-- | sys/netinet/in.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/netinet/in.c b/sys/netinet/in.c index 7ae8477..c090117 100644 --- a/sys/netinet/in.c +++ b/sys/netinet/in.c @@ -1416,6 +1416,18 @@ in_lltable_rtcheck(struct ifnet *ifp, u_int flags, const struct sockaddr *l3addr /* XXX rtalloc1 should take a const param */ rt = rtalloc1(__DECONST(struct sockaddr *, l3addr), 0, 0); + + /* + * If the gateway for an existing host route matches the target L3 + * address, allow for ARP to proceed. + */ + if (rt != NULL && (rt->rt_flags & (RTF_HOST|RTF_GATEWAY)) && + rt->rt_gateway->sa_family == AF_INET && + memcmp(rt->rt_gateway->sa_data, l3addr->sa_data, 4) == 0) { + RTFREE_LOCKED(rt); + return (0); + } + if (rt == NULL || (!(flags & LLE_PUB) && ((rt->rt_flags & RTF_GATEWAY) || (rt->rt_ifp != ifp)))) { @@ -1599,10 +1611,8 @@ in_domifattach(struct ifnet *ifp) llt = lltable_init(ifp, AF_INET); if (llt != NULL) { - llt->llt_new = in_lltable_new; llt->llt_free = in_lltable_free; llt->llt_prefix_free = in_lltable_prefix_free; - llt->llt_rtcheck = in_lltable_rtcheck; llt->llt_lookup = in_lltable_lookup; llt->llt_dump = in_lltable_dump; } |
