173 	uint16_t rt_state = 0;	/* Extra route state to pass to input_route() */  in input()
450 			 * explicit route for the destination, use the best  in input()
451 			 * route to the destination.  in input()
726 			 * only enter a default route for the sender of  in input()
730 			/* Should we trust this route from this router? */  in input()
746 			 * Add the newly generated default route, but don't  in input()
772 				    "route from %s to unsupported"  in input()
834 				trace_pkt("   ignored host route %s",  in input()
855 			 * Should we trust this route from this router?  in input()
871 			 * Recognize and ignore a default route we faked  in input()
1056  * Process a single input route.
1081 	 * Look for the route in our table.  in input_route()
1085 	/* Consider adding the route if we do not already have it. */  in input_route()
1091 		/* Ignore the route if it points to us */  in input_route()
1098 		 * our memory, accept the new route.  in input_route()
1105 	 * We already know about the route.  Consider this update.  in input_route()
1107 	 * If (rt->rt_state & RS_NET_SYN), then this route  in input_route()
1108 	 * is the same as a network route we have inferred  in input_route()
1112 	 * It is impossible to tell if the route is coming  in input_route()
1116 	 * synthetic, RIPv1 network route of our own.  in input_route()
1120 	 * aggregating into such a route.  Also keep it  in input_route()
1137 		 * Found a route from the router already in the table.  in input_route()
1141 		 * If the new route is a route broken down from an  in input_route()
1142 		 * aggregated route, and if the previous route is either  in input_route()
1143 		 * not a broken down route or was broken down from a finer  in input_route()
1144 		 * netmask, and if the previous route is current,  in input_route()
1168 			 * If the route got worse, check for something better.  in input_route()
1176 		 * This is an update for a spare route.  in input_route()
1177 		 * Finished if the route is unchanged.  in input_route()
1200 		 * The update is for a route we know about,  in input_route()
1203 		 * Ignore the route if it points to us.  in input_route()
1229 		 * Save the route as a spare only if it has  in input_route()
1240 	/* try to switch to a better route */  in input_route()