Function defrouter_del

freebsd/netinet6/nd6_rtr.c:749–798

}

static void
defrouter_del(struct nd_defrouter *dr)
{
	struct nd_defrouter *deldr = NULL;
	struct nd_prefix *pr;
	struct nd_pfxrouter *pfxrtr;

	ND6_UNLOCK_ASSERT();

	/*
	 * Flush all the routing table entries that use the router
	 * as a next hop.
	 */
	if (ND_IFINFO(dr->ifp)->flags & ND6_IFF_ACCEPT_RTADV)
		rt6_flush(&dr->rtaddr, dr->ifp);

#ifdef EXPERIMENTAL
	defrtr_ipv6_only_ifp(dr->ifp);
#endif

	if (dr->installed) {
		deldr = dr;
		defrouter_delreq(dr);
	}

	/*
	 * Also delete all the pointers to the router in each prefix lists.
	 */
	ND6_WLOCK();
	LIST_FOREACH(pr, &V_nd_prefix, ndpr_entry) {
		if ((pfxrtr = pfxrtr_lookup(pr, dr)) != NULL)
			pfxrtr_del(pfxrtr);
	}
	ND6_WUNLOCK();

	pfxlist_onlink_check();

	/*
	 * If the router is the primary one, choose a new one.
	 * Note that defrouter_select_fib() will remove the current
         * gateway from the routing table.
	 */
	if (deldr)
		defrouter_select_fib(deldr->ifp->if_fib);

	/*
	 * Release the list reference.
	 */
	defrouter_rele(dr);
}

struct nd_defrouter *
defrouter_lookup_locked(const struct in6_addr *addr, struct ifnet *ifp)