[PATCH] don't try to track broadcasts or multicasts (4/4)

[Martin Josefsson <gandalf@wlug.westbo.se>]

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There exists code to disable tracking of broadcasts but it's insice a
#if 0 / #endif in ip_conntrack_core.c and looks like some old debugging
code as it has printk's and stuff.

this patch removes that chunk and replaces it with a check so if the
packet is a broadcast or multicast we just return NF_ACCEPT since
there's not much point in us trying to track it.

-- 
/Martin

Never argue with an idiot. They drag you down to their level, then beat
you with experience.

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--- linux-2.4.19-pre9/net/ipv4/netfilter/ip_conntrack_core.c.orig	Mon Jun  3 20:32:28 2002
+++ linux-2.4.19-pre9/net/ipv4/netfilter/ip_conntrack_core.c	Tue Jun  4 20:56:18 2002
@@ -737,20 +737,9 @@
 	/* FIXME: Do this right please. --RR */
 	(*pskb)->nfcache |= NFC_UNKNOWN;
 
-/* Doesn't cover locally-generated broadcast, so not worth it. */
-#if 0
-	/* Ignore broadcast: no `connection'. */
-	if ((*pskb)->pkt_type == PACKET_BROADCAST) {
-		printk("Broadcast packet!\n");
+	/* Don't try to track broadcasts or multicasts. */
+	if ((*pskb)->pkt_type == PACKET_BROADCAST || (*pskb)->pkt_type == PACKET_MULTICAST)
 		return NF_ACCEPT;
-	} else if (((*pskb)->nh.iph->daddr & htonl(0x000000FF)) 
-		   == htonl(0x000000FF)) {
-		printk("Should bcast: %u.%u.%u.%u->%u.%u.%u.%u (sk=%p, ptype=%u)\n",
-		       NIPQUAD((*pskb)->nh.iph->saddr),
-		       NIPQUAD((*pskb)->nh.iph->daddr),
-		       (*pskb)->sk, (*pskb)->pkt_type);
-	}
-#endif
 
 	/* Previously seen (loopback)?  Ignore.  Do this before
            fragment check. */