diff options
Diffstat (limited to 'ospfd/ospf_interface.c')
| -rw-r--r-- | ospfd/ospf_interface.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/ospfd/ospf_interface.c b/ospfd/ospf_interface.c index 029f929c11..eb7a8348e8 100644 --- a/ospfd/ospf_interface.c +++ b/ospfd/ospf_interface.c @@ -1447,6 +1447,59 @@ static int ospf_ifp_destroy(struct interface *ifp) return 0; } +/* Resetting ospf hello timer */ +void ospf_reset_hello_timer(struct interface *ifp, struct in_addr addr, + bool is_addr) +{ + struct route_node *rn; + + if (is_addr) { + struct prefix p; + struct ospf_interface *oi = NULL; + + p.u.prefix4 = addr; + p.family = AF_INET; + p.prefixlen = IPV4_MAX_BITLEN; + + oi = ospf_if_table_lookup(ifp, &p); + + if (oi) { + /* Send hello before restart the hello timer + * to avoid session flaps in case of bigger + * hello interval configurations. + */ + ospf_hello_send(oi); + + /* Restart hello timer for this interface */ + OSPF_ISM_TIMER_OFF(oi->t_hello); + OSPF_HELLO_TIMER_ON(oi); + } + + return; + } + + for (rn = route_top(IF_OIFS(ifp)); rn; rn = route_next(rn)) { + struct ospf_interface *oi = rn->info; + + if (!oi) + continue; + + /* If hello interval configured on this oi, don't restart. */ + if (OSPF_IF_PARAM_CONFIGURED(oi->params, v_hello)) + continue; + + /* Send hello before restart the hello timer + * to avoid session flaps in case of bigger + * hello interval configurations. + */ + ospf_hello_send(oi); + + /* Restart the hello timer. */ + OSPF_ISM_TIMER_OFF(oi->t_hello); + OSPF_HELLO_TIMER_ON(oi); + } +} + void ospf_if_init(void) { if_zapi_callbacks(ospf_ifp_create, ospf_ifp_up, |