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| author | Duan Jiong <duanj.fnst@cn.fujitsu.com> | 2014-07-31 17:54:32 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-31 22:04:18 -0700 |
| commit | 7304fe4681634a8e0511a5922c972aa132ffb43d (patch) | |
| tree | 97d39043b738e7cd135efcd242dc2430919da2da /net/ipv4/icmp.c | |
| parent | 299ee123e19889d511092347f5fc14db0f10e3a6 (diff) | |
| download | linux-7304fe4681634a8e0511a5922c972aa132ffb43d.tar.gz linux-7304fe4681634a8e0511a5922c972aa132ffb43d.tar.bz2 linux-7304fe4681634a8e0511a5922c972aa132ffb43d.zip | |
net: fix the counter ICMP_MIB_INERRORS/ICMP6_MIB_INERRORS
When dealing with ICMPv[46] Error Message, function icmp_socket_deliver()
and icmpv6_notify() do some valid checks on packet's length, but then some
protocols check packet's length redaudantly. So remove those duplicated
statements, and increase counter ICMP_MIB_INERRORS/ICMP6_MIB_INERRORS in
function icmp_socket_deliver() and icmpv6_notify() respectively.
In addition, add missed counter in udp6/udplite6 when socket is NULL.
Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
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 42b7bcf8045b..092400ef88d0 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -663,8 +663,10 @@ static void icmp_socket_deliver(struct sk_buff *skb, u32 info) /* Checkin full IP header plus 8 bytes of protocol to * avoid additional coding at protocol handlers. */ - if (!pskb_may_pull(skb, iph->ihl * 4 + 8)) + if (!pskb_may_pull(skb, iph->ihl * 4 + 8)) { + ICMP_INC_STATS_BH(dev_net(skb->dev), ICMP_MIB_INERRORS); return; + } raw_icmp_error(skb, protocol, info); |