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| author | Jeff Barnhill <0xeffeff@gmail.com> | 2018-04-05 21:29:47 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-05 22:23:43 -0400 |
| commit | 71a1c915238c970cd9bdd5bf158b1279d6b6d55b (patch) | |
| tree | d04926ef528f98f576d3d5aed87ebcb410ee122f /net | |
| parent | a2aeea1cc14f9143f973b99950f39b38be144f3e (diff) | |
| download | linux-71a1c915238c970cd9bdd5bf158b1279d6b6d55b.tar.gz | |
net/ipv6: Increment OUTxxx counters after netfilter hook
At the end of ip6_forward(), IPSTATS_MIB_OUTFORWDATAGRAMS and IPSTATS_MIB_OUTOCTETS are incremented immediately before the NF_HOOK call for NFPROTO_IPV6 / NF_INET_FORWARD. As a result, these counters get incremented regardless of whether or not the netfilter hook allows the packet to continue being processed. This change increments the counters in ip6_forward_finish() so that it will not happen if the netfilter hook chooses to terminate the packet, which is similar to how IPv4 works. Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ip6_output.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index b8ee50e94af3..2e891d2c30ef 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -375,6 +375,11 @@ static int ip6_forward_proxy_check(struct sk_buff *skb) static inline int ip6_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb) { + struct dst_entry *dst = skb_dst(skb); + + __IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS); + __IP6_ADD_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len); + return dst_output(net, sk, skb); } @@ -569,8 +574,6 @@ int ip6_forward(struct sk_buff *skb) hdr->hop_limit--; - __IP6_INC_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS); - __IP6_ADD_STATS(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len); return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, net, NULL, skb, skb->dev, dst->dev, ip6_forward_finish); |