Signed-off-by: Vasily Averin <vvs@xxxxxxxxxx>
---
net/ipv4/netfilter/nf_defrag_ipv4.c | 32 +++++++++++++++++++++++++++++++-
1 files changed, 31 insertions(+), 1 deletions(-)
diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c
index f40f321..f82685c 100644
--- a/net/ipv4/netfilter/nf_defrag_ipv4.c
+++ b/net/ipv4/netfilter/nf_defrag_ipv4.c
@@ -110,14 +110,44 @@ static struct nf_hook_ops ipv4_defrag_ops[] = {
},
};
+static int nf_defrag_ipv4_net_init(struct net *net)
+{
+ atomic_set(&net->br_defrag_ipv4_users_count, 0);
+ return 0;
+}
+
+static void nf_defrag_ipv4_net_exit(struct net *net)
+{
+ if (unlikely(atomic_read(&net->br_defrag_ipv4_users_count) != 0)) {
+ pr_warn("net %p cleanup: br_defrag_users_count = %d\n",
+ net, atomic_read(&net->br_defrag_ipv4_users_count));
+ }
+}
+
+static struct pernet_operations nf_defrag_ipv4_net_ops = {
+ .init = nf_defrag_ipv4_net_init,
+ .exit = nf_defrag_ipv4_net_exit,
+};
+
static int __init nf_defrag_init(void)
{
- return nf_register_hooks(ipv4_defrag_ops, ARRAY_SIZE(ipv4_defrag_ops));
+ int ret = 0;
+
+ ret = register_pernet_subsys(&nf_defrag_ipv4_net_ops);
+ if (ret)
+ goto out;
+
+ ret = nf_register_hooks(ipv4_defrag_ops, ARRAY_SIZE(ipv4_defrag_ops));
+ if (ret)
+ unregister_pernet_subsys(&nf_defrag_ipv4_net_ops);
+out:
+ return ret;
}
static void __exit nf_defrag_fini(void)
{
nf_unregister_hooks(ipv4_defrag_ops, ARRAY_SIZE(ipv4_defrag_ops));
+ unregister_pernet_subsys(&nf_defrag_ipv4_net_ops);
}
void nf_defrag_ipv4_enable(void)
--
1.7.5.4
--
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