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ipv6: log src and dst along with "udp checksum is 0"

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These info messages are rather pointless without any means to identify
the source of the bogus packets.  Logging the src and dst addresses and
ports may help a bit.

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bjørn Mork 2014-02-25 21:11:02 +01:00 committed by David S. Miller
parent 86c3f0f830
commit 84a3e72c3a
1 changed files with 3 additions and 1 deletions
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4
net/ipv6/ip6_checksum.c
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@ -79,7 +79,9 @@ int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto)
/* RFC 2460 section 8.1 says that we SHOULD log
this error. Well, it is reasonable.
*/
LIMIT_NETDEBUG(KERN_INFO "IPv6: udp checksum is 0\n");
LIMIT_NETDEBUG(KERN_INFO "IPv6: udp checksum is 0 for [%pI6c]:%u->[%pI6c]:%u\n",
&ipv6_hdr(skb)->saddr, ntohs(uh->source),
&ipv6_hdr(skb)->daddr, ntohs(uh->dest));
return 1;
}
if (skb->ip_summed == CHECKSUM_COMPLETE &&