diff options
Diffstat (limited to 'nhrpd/netlink_arp.c')
| -rw-r--r-- | nhrpd/netlink_arp.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/nhrpd/netlink_arp.c b/nhrpd/netlink_arp.c index 2e22f8e..be909c8 100644 --- a/nhrpd/netlink_arp.c +++ b/nhrpd/netlink_arp.c @@ -7,6 +7,10 @@ #include "config.h" #endif +#ifdef GNU_LINUX +#include <linux/rtnetlink.h> +#endif + #include <fcntl.h> #include <net/if.h> #include <netinet/if_ether.h> @@ -150,6 +154,10 @@ int nhrp_neighbor_operation(ZAPI_CALLBACK_ARGS) struct zapi_neigh_ip api = {}; zclient_neigh_ip_decode(zclient->ibuf, &api); + + if (api.ip_len != IPV4_MAX_BYTELEN && api.ip_len != 0) + return 0; + if (api.ip_in.ipa_type == AF_UNSPEC) return 0; sockunion_family(&addr) = api.ip_in.ipa_type; @@ -172,26 +180,30 @@ int nhrp_neighbor_operation(ZAPI_CALLBACK_ARGS) return 0; debugf(NHRP_DEBUG_KERNEL, "Netlink: %s %pSU dev %s lladdr %pSU nud 0x%x cache used %u type %u", - (cmd == ZEBRA_NHRP_NEIGH_GET) - ? "who-has" - : (cmd == ZEBRA_NHRP_NEIGH_ADDED) ? "new-neigh" - : "del-neigh", + (cmd == ZEBRA_NEIGH_GET) ? "who-has" + : (cmd == ZEBRA_NEIGH_ADDED) ? "new-neigh" + : "del-neigh", &addr, ifp->name, &lladdr, ndm_state, c->used, c->cur.type); - if (cmd == ZEBRA_NHRP_NEIGH_GET) { + if (cmd == ZEBRA_NEIGH_GET) { if (c->cur.type >= NHRP_CACHE_CACHED) { nhrp_cache_set_used(c, 1); debugf(NHRP_DEBUG_KERNEL, "Netlink: update binding for %pSU dev %s from c %pSU peer.vc.nbma %pSU to lladdr %pSU", &addr, ifp->name, &c->cur.remote_nbma_natoa, &c->cur.peer->vc->remote.nbma, &lladdr); + + if (lladdr.sa.sa_family == AF_UNSPEC) + /* nothing from zebra, so use nhrp peer */ + lladdr = c->cur.peer->vc->remote.nbma; + /* In case of shortcuts, nbma is given by lladdr, not * vc->remote.nbma. */ netlink_update_binding(ifp, &addr, &lladdr); } } else { - state = (cmd == ZEBRA_NHRP_NEIGH_ADDED) ? ndm_state - : ZEBRA_NEIGH_STATE_FAILED; + state = (cmd == ZEBRA_NEIGH_ADDED) ? ndm_state + : ZEBRA_NEIGH_STATE_FAILED; nhrp_cache_set_used(c, state == ZEBRA_NEIGH_STATE_REACHABLE); } return 0; |