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| author | Eric Dumazet <edumazet@google.com> | 2013-04-29 08:39:56 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-29 15:14:03 -0400 |
| commit | 6a5dc9e598fe90160fee7de098fa319665f5253e (patch) | |
| tree | 7f2c2130e3dec81aea01e997cec7e87744f02694 /net/ipv4/ip_input.c | |
| parent | f233a976ad15c3b8c54c0157f3c41d23f7514279 (diff) | |
| download | linux-stable-6a5dc9e598fe90160fee7de098fa319665f5253e.tar.gz linux-stable-6a5dc9e598fe90160fee7de098fa319665f5253e.tar.bz2 linux-stable-6a5dc9e598fe90160fee7de098fa319665f5253e.zip | |
net: Add MIB counters for checksum errors
Add MIB counters for checksum errors in IP layer,
and TCP/UDP/ICMP layers, to help diagnose problems.
$ nstat -a | grep Csum
IcmpInCsumErrors 72 0.0
TcpInCsumErrors 382 0.0
UdpInCsumErrors 463221 0.0
Icmp6InCsumErrors 75 0.0
Udp6InCsumErrors 173442 0.0
IpExtInCsumErrors 10884 0.0
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
| -rw-r--r-- | net/ipv4/ip_input.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c index 2bdf802e28e2..3da817b89e9b 100644 --- a/net/ipv4/ip_input.c +++ b/net/ipv4/ip_input.c @@ -419,7 +419,7 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, iph = ip_hdr(skb); if (unlikely(ip_fast_csum((u8 *)iph, iph->ihl))) - goto inhdr_error; + goto csum_error; len = ntohs(iph->tot_len); if (skb->len < len) { @@ -446,6 +446,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, skb, dev, NULL, ip_rcv_finish); +csum_error: + IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_CSUMERRORS); inhdr_error: IP_INC_STATS_BH(dev_net(dev), IPSTATS_MIB_INHDRERRORS); drop: |