PERFORCE change 126490 for review

[Kip Macy]

http://perforce.freebsd.org/chv.cgi?CH=126490

Change 126490 by kmacy at kmacy_home:ethng on 2007/09/16 22:00:39

	       cache the route in the inpcb 
	       this is currently half-complete at best as it doesn't yet 
	       re-validate the rt_entry against a gen_count as is intended 

Affected files ...

.. //depot/projects/ethng/src/sys/netinet/udp_usrreq.c#4 edit

Differences ...

==== //depot/projects/ethng/src/sys/netinet/udp_usrreq.c#4 (text+ko) ====

@@ -967,8 +967,23 @@
 
 	if (unlock_udbinfo)
 		INP_INFO_WUNLOCK(&udbinfo);
+
+	/*
+	 * XXX need to validate
+	 */
+	if (inp->inp_route.ro_rt == NULL) {
+		struct sockaddr_in *dst =  (struct sockaddr_in *)&inp->inp_route.ro_dst;
+		struct ip *ip = mtod(m, struct ip *);
+		
+		bzero(dst, sizeof(*dst));
+		dst->sin_family = AF_INET;
+		dst->sin_len = sizeof(*dst);
+		dst->sin_addr = ip->ip_dst;
+		
+		rtalloc_ign(&inp->inp_route, 0);
+	}
 	m->m_pkthdr.rss_hash = inp->inp_rss_hash;
-	error = ip_output(m, inp->inp_options, NULL, ipflags,
+	error = ip_output(m, inp->inp_options, &inp->inp_route, ipflags,
 	    inp->inp_moptions, inp);
 	INP_UNLOCK(inp);
 	return (error);