C++ (Cpp) is_prefix_default Examples

Example #1

File: ospf_flood.c Project: Skotha/quagga

/* Check LSA is related to external info. */
struct external_info *
ospf_external_info_check (struct ospf_lsa *lsa)
{
  struct as_external_lsa *al;
  struct prefix_ipv4 p;
  struct route_node *rn;
  int type;

  al = (struct as_external_lsa *) lsa->data;

  p.family = AF_INET;
  p.prefix = lsa->data->id;
  p.prefixlen = ip_masklen (al->mask);

  for (type = 0; type <= ZEBRA_ROUTE_MAX; type++)
    {
      int redist_type = is_prefix_default (&p) ? DEFAULT_ROUTE : type;
      if (ospf_is_type_redistributed (redist_type))
	if (EXTERNAL_INFO (type))
	  {
	    rn = route_node_lookup (EXTERNAL_INFO (type),
				    (struct prefix *) &p);
	    if (rn)
	      {
		route_unlock_node (rn);
		if (rn->info != NULL)
		  return (struct external_info *) rn->info;
	      }
	  }
    }

  return NULL;
}

Example #2

/* Check LSA is related to external info. */
struct external_info *ospf_external_info_check(struct ospf *ospf,
					       struct ospf_lsa *lsa)
{
	struct as_external_lsa *al;
	struct prefix_ipv4 p;
	struct route_node *rn;
	int type;

	al = (struct as_external_lsa *)lsa->data;

	p.family = AF_INET;
	p.prefix = lsa->data->id;
	p.prefixlen = ip_masklen(al->mask);

	for (type = 0; type < ZEBRA_ROUTE_MAX; type++) {
		int redist_on = 0;

		redist_on =
			is_prefix_default(&p)
				? vrf_bitmap_check(zclient->default_information,
						   ospf->vrf_id)
				: (zclient->mi_redist[AFI_IP][type].enabled
				   || vrf_bitmap_check(
					      zclient->redist[AFI_IP][type],
					      ospf->vrf_id));
		// Pending: check for MI above.
		if (redist_on) {
			struct list *ext_list;
			struct listnode *node;
			struct ospf_external *ext;

			ext_list = ospf->external[type];
			if (!ext_list)
				continue;

			for (ALL_LIST_ELEMENTS_RO(ext_list, node, ext)) {
				rn = NULL;
				if (ext->external_info)
					rn = route_node_lookup(
						ext->external_info,
						(struct prefix *)&p);
				if (rn) {
					route_unlock_node(rn);
					if (rn->info != NULL)
						return (struct external_info *)
							rn->info;
				}
			}
		}
	}

	return NULL;
}