net/ipv4/netfilter/ipt_unclean.c: Source port is allowed to be zero.

6288df7d · Harald Welte · David S. Miller · 6ef05c91 · 6288df7d
Commit 6288df7d authored Oct 13, 2002 by Harald Welte Committed by David S. Miller Oct 13, 2002
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Showing with 3 additions and 4 deletions

net/ipv4/netfilter/ipt_unclean.c net/ipv4/netfilter/ipt_unclean.c +3 -4

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--- a/net/ipv4/netfilter/ipt_unclean.c
+++ b/net/ipv4/netfilter/ipt_unclean.c
@@ -216,10 +216,9 @@ check_udp(const struct iphdr *iph,
 				 csum_partial((char *)udph, datalen, 0)) != 0)
 		return 0;
-	/* CHECK: Ports can't be zero. */
+	/* CHECK: Destination port can't be zero. */
-	if (!udph->source || !udph->dest) {
+	if (!udph->dest) {
-		limpk("UDP zero ports %u/%u\n",
+		limpk("UDP zero destination port\n");
-		      ntohs(udph->source), ntohs(udph->dest));
 		return 0;
 	}