/*
* zfpm_dt_find_route
*
* Selects a suitable rib destination for fpm interface tests.
*/
static int zfpm_dt_find_route(rib_dest_t **dest_p, struct route_entry **re_p)
{
struct route_node *rnode;
route_table_iter_t iter;
struct route_table *table;
rib_dest_t *dest;
struct route_entry *re;
int ret;
table = zebra_vrf_table(AFI_IP, SAFI_UNICAST, VRF_DEFAULT);
if (!table)
return 0;
route_table_iter_init(&iter, table);
while ((rnode = route_table_iter_next(&iter))) {
dest = rib_dest_from_rnode(rnode);
if (!dest)
continue;
re = zfpm_route_for_update(dest);
if (!re)
continue;
if (re->nexthop_active_num <= 0)
continue;
*dest_p = dest;
*re_p = re;
ret = 1;
goto done;
}
ret = 0;
done:
route_table_iter_cleanup(&iter);
return ret;
}
int
zebra_evaluate_rnh_table (vrf_id_t vrfid, int family)
{
struct route_table *ptable;
struct route_table *ntable;
struct route_node *prn;
struct route_node *nrn;
struct rnh *rnh;
struct zserv *client;
struct listnode *node;
struct rib *rib;
ntable = lookup_rnh_table(vrfid, family);
if (!ntable)
{
zlog_debug("evaluate_rnh_table: rnh table not found\n");
return -1;
}
ptable = zebra_vrf_table(family2afi(family), SAFI_UNICAST, vrfid);
if (!ptable)
{
zlog_debug("evaluate_rnh_table: prefix table not found\n");
return -1;
}
for (nrn = route_top (ntable); nrn; nrn = route_next (nrn))
{
if (!nrn->info)
continue;
rnh = nrn->info;
prn = route_node_match(ptable, &nrn->p);
if (!prn)
rib = NULL;
else
{
RNODE_FOREACH_RIB(prn, rib)
{
if (CHECK_FLAG (rib->status, RIB_ENTRY_REMOVED))
continue;
if (! CHECK_FLAG (rib->status, RIB_ENTRY_SELECTED_FIB))
continue;
if (CHECK_FLAG(rnh->flags, ZEBRA_NHT_CONNECTED))
{
if (rib->type == ZEBRA_ROUTE_CONNECT)
break;
if (rib->type == ZEBRA_ROUTE_NHRP)
{
struct nexthop *nexthop;
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
if (nexthop->type == NEXTHOP_TYPE_IFINDEX ||
nexthop->type == NEXTHOP_TYPE_IFNAME)
break;
if (nexthop)
break;
}
}
else
break;
}
}
if (compare_state(rib, rnh->state))
{
if (IS_ZEBRA_DEBUG_NHT)
{
char bufn[INET6_ADDRSTRLEN];
char bufp[INET6_ADDRSTRLEN];
prefix2str(&nrn->p, bufn, INET6_ADDRSTRLEN);
if (prn)
prefix2str(&prn->p, bufp, INET6_ADDRSTRLEN);
else
strcpy(bufp, "null");
zlog_debug("rnh %s resolved through route %s - sending "
"nexthop %s event to clients", bufn, bufp,
rib ? "reachable" : "unreachable");
}
copy_state(rnh, rib);
for (ALL_LIST_ELEMENTS_RO(rnh->client_list, node, client))
send_client(rnh, client, vrfid);
}
}
return 1;
}