According to RFC4293, this patch records MIB counter of IPSTATS_MIB_REASMFAILS,
IPSTATS_MIB_REASMOKS, when reassembling fragments after all fragments reached.
Signed-off-by: Shan Wei <shanwei@xxxxxxxxxxxxxx>
---
net/ipv6/netfilter/nf_conntrack_reasm.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 4a1b5bd..9f50c13 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -398,6 +398,7 @@ static struct sk_buff *
nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
{
struct sk_buff *fp, *op, *head = fq->q.fragments;
+ struct net *net = container_of(fq->q.net, struct net, ipv6.frags);
int payload_len;
fq_kill(fq);
@@ -499,6 +500,9 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
NFCT_FRAG6_CB(fp)->orig = NULL;
}
+ rcu_read_lock();
+ IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
+ rcu_read_unlock();
return head;
out_oversize:
@@ -509,6 +513,9 @@ out_oom:
if (net_ratelimit())
printk(KERN_DEBUG "nf_ct_frag6_reasm: no memory for reassembly\n");
out_fail:
+ rcu_read_lock();
+ IP6_INC_STATS(net, __in6_dev_get(dev), IPSTATS_MIB_REASMFAILS);
+ rcu_read_unlock();
return NULL;
}
--
1.6.3.3
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