netfilter: netns ebtables: ebtable_broute in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

2 files changed, 30 insertions, 8 deletions

diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index b8093971ccb4..055e684d29b6 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -4,7 +4,10 @@
 #include <linux/list.h>
 #include <linux/netfilter.h>
 
+struct ebt_table;
+
 struct netns_xt {
         struct list_head tables[NFPROTO_NUMPROTO];
+        struct ebt_table *broute_table;
 };
 #endif
diff --git a/net/bridge/netfilter/ebtable_broute.c b/net/bridge/netfilter/ebtable_broute.c
index 3277d682dfcf..8604dfc1fc3b 100644
--- a/net/bridge/netfilter/ebtable_broute.c
+++ b/net/bridge/netfilter/ebtable_broute.c
@@ -41,33 +41,52 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
         return 0;
 }
 
-static struct ebt_table __broute_table =
+static struct ebt_table broute_table =
 {
         .name           = "broute",
         .table          = &initial_table,
         .valid_hooks    = 1 << NF_BR_BROUTING,
-        .lock           = __RW_LOCK_UNLOCKED(__broute_table.lock),
+        .lock           = __RW_LOCK_UNLOCKED(broute_table.lock),
         .check          = check,
         .me             = THIS_MODULE,
 };
-static struct ebt_table *broute_table;
 
 static int ebt_broute(struct sk_buff *skb)
 {
         int ret;
 
         ret = ebt_do_table(NF_BR_BROUTING, skb, skb->dev, NULL,
-           broute_table);
+                           dev_net(skb->dev)->xt.broute_table);
         if (ret == NF_DROP)
                 return 1; /* route it */
         return 0; /* bridge it */
 }
 
+static int __net_init broute_net_init(struct net *net)
+{
+        net->xt.broute_table = ebt_register_table(net, &broute_table);
+        if (IS_ERR(net->xt.broute_table))
+                return PTR_ERR(net->xt.broute_table);
+        return 0;
+}
+
+static void __net_exit broute_net_exit(struct net *net)
+{
+        ebt_unregister_table(net->xt.broute_table);
+}
+
+static struct pernet_operations broute_net_ops = {
+        .init = broute_net_init,
+        .exit = broute_net_exit,
+};
+
 static int __init ebtable_broute_init(void)
 {
-        broute_table = ebt_register_table(&init_net, &__broute_table);
-        if (IS_ERR(broute_table))
-                return PTR_ERR(broute_table);
+        int ret;
+
+        ret = register_pernet_subsys(&broute_net_ops);
+        if (ret < 0)
+                return ret;
         /* see br_input.c */
         rcu_assign_pointer(br_should_route_hook, ebt_broute);
         return 0;
@@ -77,7 +96,7 @@ static void __exit ebtable_broute_fini(void)
 {
         rcu_assign_pointer(br_should_route_hook, NULL);
         synchronize_net();
-        ebt_unregister_table(broute_table);
+        unregister_pernet_subsys(&broute_net_ops);
 }
 
 module_init(ebtable_broute_init);