diff options
Diffstat (limited to 'sys/netinet/in.c')
| -rw-r--r-- | sys/netinet/in.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/sys/netinet/in.c b/sys/netinet/in.c index 684d808..c090117 100644 --- a/sys/netinet/in.c +++ b/sys/netinet/in.c @@ -548,7 +548,7 @@ in_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, * is the same as before, then the call is * un-necessarily executed here. */ - in_ifscrub(ifp, ia, 0); + in_ifscrub(ifp, ia, LLE_STATIC); ia->ia_sockmask = ifra->ifra_mask; ia->ia_sockmask.sin_family = AF_INET; ia->ia_subnetmask = @@ -557,7 +557,7 @@ in_control(struct socket *so, u_long cmd, caddr_t data, struct ifnet *ifp, } if ((ifp->if_flags & IFF_POINTOPOINT) && (ifra->ifra_dstaddr.sin_family == AF_INET)) { - in_ifscrub(ifp, ia, 0); + in_ifscrub(ifp, ia, LLE_STATIC); ia->ia_dstaddr = ifra->ifra_dstaddr; maskIsNew = 1; /* We lie; but the effect's the same */ } @@ -1179,14 +1179,20 @@ in_scrubprefix(struct in_ifaddr *target, u_int flags) && (ia->ia_ifp->if_type != IFT_CARP)) { ifa_ref(&ia->ia_ifa); IN_IFADDR_RUNLOCK(); - rtinit(&(target->ia_ifa), (int)RTM_DELETE, + error = rtinit(&(target->ia_ifa), (int)RTM_DELETE, rtinitflags(target)); - target->ia_flags &= ~IFA_ROUTE; - + if (error == 0) + target->ia_flags &= ~IFA_ROUTE; + else + log(LOG_INFO, "in_scrubprefix: err=%d, old prefix delete failed\n", + error); error = rtinit(&ia->ia_ifa, (int)RTM_ADD, rtinitflags(ia) | RTF_UP); if (error == 0) ia->ia_flags |= IFA_ROUTE; + else + log(LOG_INFO, "in_scrubprefix: err=%d, new prefix add failed\n", + error); ifa_free(&ia->ia_ifa); return (error); } @@ -1210,9 +1216,12 @@ in_scrubprefix(struct in_ifaddr *target, u_int flags) /* * As no-one seem to have this prefix, we can remove the route. */ - rtinit(&(target->ia_ifa), (int)RTM_DELETE, rtinitflags(target)); - target->ia_flags &= ~IFA_ROUTE; - return (0); + error = rtinit(&(target->ia_ifa), (int)RTM_DELETE, rtinitflags(target)); + if (error == 0) + target->ia_flags &= ~IFA_ROUTE; + else + log(LOG_INFO, "in_scrubprefix: err=%d, prefix delete failed\n", error); + return (error); } #undef rtinitflags @@ -1407,6 +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)))) { @@ -1590,10 +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; } |
