diff options
Diffstat (limited to 'zebra/rt_netlink.c')
| -rw-r--r-- | zebra/rt_netlink.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index 92c78a4cbb..b05d037f96 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -330,6 +330,10 @@ static int netlink_route_change_read_unicast(struct nlmsghdr *h, ns_id_t ns_id, bh_type = BLACKHOLE_ADMINPROHIB; break; default: + if (IS_ZEBRA_DEBUG_KERNEL) + zlog_debug("Route rtm_type: %s(%d) intentionally ignoring", + nl_rttype_to_str(rtm->rtm_type), + rtm->rtm_type); return 0; } @@ -2344,7 +2348,8 @@ static int netlink_macfdb_update(struct interface *ifp, vlanid_t vid, * 5549 support, re-install them. */ static void netlink_handle_5549(struct ndmsg *ndm, struct zebra_if *zif, - struct interface *ifp, struct ipaddr *ip) + struct interface *ifp, struct ipaddr *ip, + bool handle_failed) { if (ndm->ndm_family != AF_INET) return; @@ -2355,6 +2360,12 @@ static void netlink_handle_5549(struct ndmsg *ndm, struct zebra_if *zif, if (ipv4_ll.s_addr != ip->ip._v4_addr.s_addr) return; + if (handle_failed && ndm->ndm_state & NUD_FAILED) { + zlog_info("Neighbor Entry for %s has entered a failed state, not reinstalling", + ifp->name); + return; + } + if_nbr_ipv6ll_to_ipv4ll_neigh_update(ifp, &zif->v6_2_v4_ll_addr6, true); } @@ -2405,7 +2416,7 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id) /* if kernel deletes our rfc5549 neighbor entry, re-install it */ if (h->nlmsg_type == RTM_DELNEIGH && (ndm->ndm_state & NUD_PERMANENT)) { - netlink_handle_5549(ndm, zif, ifp, &ip); + netlink_handle_5549(ndm, zif, ifp, &ip, false); if (IS_ZEBRA_DEBUG_KERNEL) zlog_debug( "\tNeighbor Entry Received is a 5549 entry, finished"); @@ -2414,7 +2425,7 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id) /* if kernel marks our rfc5549 neighbor entry invalid, re-install it */ if (h->nlmsg_type == RTM_NEWNEIGH && !(ndm->ndm_state & NUD_VALID)) - netlink_handle_5549(ndm, zif, ifp, &ip); + netlink_handle_5549(ndm, zif, ifp, &ip, true); /* The neighbor is present on an SVI. From this, we locate the * underlying |