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authorWei Dong <weid@nanjing-fnst.com>2006-08-02 16:39:57 -0400
committerDavid S. Miller <davem@davemloft.net>2006-08-02 16:39:57 -0400
commit32c524d1c48b62be49fa1b1dd93fed10792debc0 (patch)
treee04b93e55e9e6200a958f22f83b5a817ba0f2588
parentb60dfc6c20bd5f19de0083362ce377c89b1e5a24 (diff)
[IPV6]: SNMPv2 "ipv6IfStatsInHdrErrors" counter error
When I tested Linux kernel 2.6.17.7 about statistics "ipv6IfStatsInHdrErrors", found that this counter couldn't increase correctly. The criteria is RFC2465: ipv6IfStatsInHdrErrors OBJECT-TYPE SYNTAX Counter3 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of input datagrams discarded due to errors in their IPv6 headers, including version number mismatch, other format errors, hop count exceeded, errors discovered in processing their IPv6 options, etc." ::= { ipv6IfStatsEntry 2 } When I send TTL=0 and TTL=1 a packet to a router which need to be forwarded, router just sends an ICMPv6 message to tell the sender that TIME_EXCEED and HOPLIMITS, but no increments for this counter(in the function ip6_forward). Signed-off-by: Wei Dong <weid@nanjing-fnst.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv6/ip6_output.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5e74a37695f7..70c9234b70e7 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -356,6 +356,7 @@ int ip6_forward(struct sk_buff *skb)
356 skb->dev = dst->dev; 356 skb->dev = dst->dev;
357 icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT, 357 icmpv6_send(skb, ICMPV6_TIME_EXCEED, ICMPV6_EXC_HOPLIMIT,
358 0, skb->dev); 358 0, skb->dev);
359 IP6_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
359 360
360 kfree_skb(skb); 361 kfree_skb(skb);
361 return -ETIMEDOUT; 362 return -ETIMEDOUT;