/* reset nbr_self */
void ospf_nbr_self_reset(struct ospf_interface *oi, struct in_addr router_id)
{
if (oi->nbr_self)
ospf_nbr_delete(oi->nbr_self);
oi->nbr_self = ospf_nbr_new(oi);
ospf_nbr_add_self(oi, router_id);
}
/* Restore an interface to its pre UP state
Used from ism_interface_down only */
void
ospf_if_cleanup (struct ospf_interface *oi)
{
struct route_node *rn;
struct listnode *node, *nnode;
struct ospf_neighbor *nbr;
struct ospf_nbr_nbma *nbr_nbma;
struct ospf_lsa *lsa;
/* oi->nbrs and oi->nbr_nbma should be deleted on InterfaceDown event */
/* delete all static neighbors attached to this interface */
for (ALL_LIST_ELEMENTS (oi->nbr_nbma, node, nnode, nbr_nbma))
{
OSPF_POLL_TIMER_OFF (nbr_nbma->t_poll);
if (nbr_nbma->nbr)
{
nbr_nbma->nbr->nbr_nbma = NULL;
nbr_nbma->nbr = NULL;
}
nbr_nbma->oi = NULL;
listnode_delete (oi->nbr_nbma, nbr_nbma);
}
/* send Neighbor event KillNbr to all associated neighbors. */
for (rn = route_top (oi->nbrs); rn; rn = route_next (rn))
if ((nbr = rn->info) != NULL)
if (nbr != oi->nbr_self)
OSPF_NSM_EVENT_EXECUTE (nbr, NSM_KillNbr);
/* Cleanup Link State Acknowlegdment list. */
for (ALL_LIST_ELEMENTS (oi->ls_ack, node, nnode, lsa))
ospf_lsa_unlock (&lsa); /* oi->ls_ack */
list_delete_all_node (oi->ls_ack);
oi->crypt_seqnum = 0;
/* Empty link state update queue */
ospf_ls_upd_queue_empty (oi);
/* Reset pseudo neighbor. */
ospf_nbr_delete (oi->nbr_self);
oi->nbr_self = ospf_nbr_new (oi);
ospf_nbr_add_self (oi);
ospf_lsa_unlock (&oi->network_lsa_self);
oi->network_lsa_self = NULL;
OSPF_TIMER_OFF (oi->t_network_lsa_self);
#ifdef HAVE_GRACEFUL_RESTART
THREAD_TIMER_OFF(oi->t_opaque_lsa_refresh);
oi->v_opaque_lsa_count = 0 ;
#endif
}
struct ospf_interface *
ospf_vl_new (struct ospf *ospf, struct ospf_vl_data *vl_data)
{
struct ospf_interface * voi;
struct interface * vi;
char ifname[INTERFACE_NAMSIZ + 1];
struct ospf_area *area;
struct in_addr area_id;
struct connected *co;
struct prefix_ipv4 *p;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Start");
if (vlink_count == OSPF_VL_MAX_COUNT)
{
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Alarm: "
"cannot create more than OSPF_MAX_VL_COUNT virtual links");
return NULL;
}
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): creating pseudo zebra interface");
snprintf (ifname, sizeof(ifname), "VLINK%d", vlink_count);
vi = if_create (ifname, strnlen(ifname, sizeof(ifname)));
co = connected_new ();
co->ifp = vi;
listnode_add (vi->connected, co);
p = prefix_ipv4_new ();
p->family = AF_INET;
p->prefix.s_addr = 0;
p->prefixlen = 0;
co->address = (struct prefix *)p;
voi = ospf_if_new (ospf, vi, co->address);
if (voi == NULL)
{
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Alarm: OSPF int structure is not created");
return NULL;
}
voi->connected = co;
voi->vl_data = vl_data;
voi->ifp->mtu = OSPF_VL_MTU;
voi->type = OSPF_IFTYPE_VIRTUALLINK;
vlink_count++;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Created name: %s", ifname);
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): set if->name to %s", vi->name);
area_id.s_addr = 0;
area = ospf_area_get (ospf, area_id, OSPF_AREA_ID_FORMAT_ADDRESS);
voi->area = area;
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): set associated area to the backbone");
ospf_nbr_add_self (voi);
ospf_area_add_if (voi->area, voi);
ospf_if_stream_set (voi);
if (IS_DEBUG_OSPF_EVENT)
zlog_debug ("ospf_vl_new(): Stop");
return voi;
}
