Function lookup_prefix

freebsd/net/route/route_ctl.c:520–530

* Runs exact prefix match based on dst/netmask from @info. * Assumes RIB lock is held. * Returns matched @rtentry if found or NULL. * If rtentry was found, saves nexthop / weight value into @rnd. */

 * If rtentry was found, saves nexthop / weight value into @rnd.
 */
struct rtentry *
lookup_prefix(struct rib_head *rnh, const struct rt_addrinfo *info,
    struct route_nhop_data *rnd)
{
	struct rtentry *rt;

	rt = lookup_prefix_bysa(rnh, info->rti_info[RTAX_DST],
	    info->rti_info[RTAX_NETMASK], rnd);

	return (rt);
}

/*
 * Adds route defined by @info into the kernel table specified by @fibnum and