void ospf_renegotiate_optional_capabilities(struct ospf *top)
{
struct listnode *node;
struct ospf_interface *oi;
struct route_table *nbrs;
struct route_node *rn;
struct ospf_neighbor *nbr;
/* At first, flush self-originated LSAs from routing domain. */
ospf_flush_self_originated_lsas_now(top);
/* Revert all neighbor status to ExStart. */
for (ALL_LIST_ELEMENTS_RO(top->oiflist, node, oi)) {
if ((nbrs = oi->nbrs) == NULL)
continue;
for (rn = route_top(nbrs); rn; rn = route_next(rn)) {
if ((nbr = rn->info) == NULL || nbr == oi->nbr_self)
continue;
if (nbr->state < NSM_ExStart)
continue;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug
("Renegotiate optional capabilities with neighbor(%s)",
inet_ntoa(nbr->router_id));
OSPF_NSM_EVENT_SCHEDULE(nbr, NSM_SeqNumberMismatch);
}
}
return;
}
/* Check loading state. */
void
ospf_check_nbr_loading (struct ospf_neighbor *nbr)
{
if (nbr->state == NSM_Loading)
{
if (ospf_ls_request_isempty (nbr))
OSPF_NSM_EVENT_SCHEDULE (nbr, NSM_LoadingDone);
else if (nbr->ls_req_last == NULL)
ospf_ls_req_event (nbr);
}
}
/* OSPF NSM Timer functions. */
int
ospf_inactivity_timer (struct thread *thread)
{
struct ospf_neighbor *nbr;
nbr = THREAD_ARG (thread);
nbr->t_inactivity = NULL;
if (IS_DEBUG_OSPF (nsm, NSM_TIMERS))
zlog (NULL, LOG_DEBUG, "NSM[%s:%s]: Timer (Inactivity timer expire)",
IF_NAME (nbr->oi), inet_ntoa (nbr->router_id));
OSPF_NSM_EVENT_SCHEDULE (nbr, NSM_InactivityTimer);
return 0;
}
/* Generate AdjOK? NSM event. */
static void
ospf_dr_change (struct ospf *ospf, struct route_table *nbrs)
{
struct route_node *rn;
struct ospf_neighbor *nbr;
for (rn = route_top (nbrs); rn; rn = route_next (rn))
if ((nbr = rn->info) != NULL)
/* Ignore 0.0.0.0 node*/
if (nbr->router_id.s_addr != 0)
/* Is neighbor upper 2-Way? */
if (nbr->state >= NSM_TwoWay)
/* Ignore myself. */
if (!IPV4_ADDR_SAME (&nbr->router_id, &ospf->router_id))
OSPF_NSM_EVENT_SCHEDULE (nbr, NSM_AdjOK);
}
