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

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
View File

@ -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 &&