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| author | Eric Dumazet <edumazet@google.com> | 2013-04-29 10:39:56 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-29 21:14:03 +0200 |
| commit | 6a5dc9e598fe90160fee7de098fa319665f5253e (patch) | |
| tree | 7f2c2130e3dec81aea01e997cec7e87744f02694 /net/ipv4/icmp.c | |
| parent | tg3: shows HW time stamping support only if ptp_capable is present (diff) | |
| download | linux-6a5dc9e598fe90160fee7de098fa319665f5253e.tar.xz linux-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/icmp.c')
| -rw-r--r-- | net/ipv4/icmp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 3ac5dff79627..76e10b47e053 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -881,7 +881,7 @@ int icmp_rcv(struct sk_buff *skb) case CHECKSUM_NONE: skb->csum = 0; if (__skb_checksum_complete(skb)) - goto error; + goto csum_error; } if (!pskb_pull(skb, sizeof(*icmph))) @@ -929,6 +929,8 @@ int icmp_rcv(struct sk_buff *skb) drop: kfree_skb(skb); return 0; +csum_error: + ICMP_INC_STATS_BH(net, ICMP_MIB_CSUMERRORS); error: ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS); goto drop; |