Function rt_ifannouncemsg

freebsd/net/rtsock.c:2053–2062

* This is called to generate routing socket messages indicating * network interface arrival and departure. */

 * network interface arrival and departure.
 */
void
rt_ifannouncemsg(struct ifnet *ifp, int what)
{
	struct mbuf *m;
	struct rt_addrinfo info;

	m = rt_makeifannouncemsg(ifp, RTM_IFANNOUNCE, what, &info);
	if (m != NULL)
		rt_dispatch(m, AF_UNSPEC);
}

static void
rt_dispatch(struct mbuf *m, sa_family_t saf)