Function rtsock_routemsg

freebsd/net/rtsock.c:1885–1907

* Announce route addition/removal to rtsock based on @rt data. * Callers are advives to use rt_routemsg() instead of using this * function directly. * Assume @rt data is consistent. * * Returns 0 on success. */

 * Returns 0 on success.
 */
int
rtsock_routemsg(int cmd, struct rtentry *rt, struct nhop_object *nh,
    int fibnum)
{
	union sockaddr_union dst, mask;
	struct rt_addrinfo info;

	if (V_route_cb.any_count == 0)
		return (0);

	int family = rt_get_family(rt);
	init_sockaddrs_family(family, &dst.sa, &mask.sa);
	export_rtaddrs(rt, &dst.sa, &mask.sa);

	bzero((caddr_t)&info, sizeof(info));
	info.rti_info[RTAX_DST] = &dst.sa;
	info.rti_info[RTAX_NETMASK] = &mask.sa;
	info.rti_info[RTAX_GATEWAY] = &nh->gw_sa;
	info.rti_flags = rt->rte_flags | nhop_get_rtflags(nh);
	info.rti_ifp = nh->nh_ifp;

	return (rtsock_routemsg_info(cmd, &info, fibnum));
}

int
rtsock_routemsg_info(int cmd, struct rt_addrinfo *info, int fibnum)