181  * @gateway: gateway to go via
190 rib_add_redirect(u_int fibnum, struct sockaddr *dst, struct sockaddr *gateway,  in rib_add_redirect()  argument
208 	/* Get the best ifa for the given interface and gateway. */  in rib_add_redirect()
209 	if ((ifa = ifaof_ifpforaddr(gateway, ifp)) == NULL)  in rib_add_redirect()
216 	nhop_set_gw(nh, gateway, flags & RTF_GATEWAY);  in rib_add_redirect()
239 		.rti_info[RTAX_GATEWAY] = gateway,  in rib_add_redirect()
270     const struct sockaddr *gateway, u_int fibnum)  in ifa_ifwithroute()  argument
287 			ifa = ifa_ifwithaddr(gateway);  in ifa_ifwithroute()
291 		 * or host, the gateway may still be on the  in ifa_ifwithroute()
294 		ifa = ifa_ifwithdstaddr(gateway, fibnum);  in ifa_ifwithroute()
297 		ifa = ifa_ifwithnet(gateway, 0, fibnum);  in ifa_ifwithroute()
301 		nh = rib_lookup(fibnum, gateway, NHR_NONE, 0);  in ifa_ifwithroute()
304 		 * dismiss a gateway that is reachable only  in ifa_ifwithroute()
394  * Calculates proper ifa/ifp for the cases when gateway AF is different
437 	const struct sockaddr *dst, *gateway, *ifaaddr;  in rt_getifa_fib()  local
441 	gateway = info->rti_info[RTAX_GATEWAY];  in rt_getifa_fib()
461 	    (gateway->sa_family != dst->sa_family))  in rt_getifa_fib()
473 		 * 2) gateway address  in rt_getifa_fib()
474 		 *   Note: for interface routes link-level gateway address   in rt_getifa_fib()
476 		 *     specifying RTF_GATEWAY. In this case, ignore gateway  in rt_getifa_fib()
477 		 *   Note: gateway AF may be different from dst AF. In this case,  in rt_getifa_fib()
478 		 *   ignore gateway  in rt_getifa_fib()
482 		 * try to lookup gateway or dst in the routing table to get ifa  in rt_getifa_fib()
487 		    gateway->sa_family == dst->sa_family)  in rt_getifa_fib()
488 			sa = gateway;  in rt_getifa_fib()
494 			if (info->rti_ifa == NULL && gateway != NULL)  in rt_getifa_fib()
495 				info->rti_ifa = ifaof_ifpforaddr(gateway, info->rti_ifp);  in rt_getifa_fib()
496 		} else if (dst != NULL && gateway != NULL)  in rt_getifa_fib()
497 			info->rti_ifa = ifa_ifwithroute(flags, dst, gateway,  in rt_getifa_fib()