netfilter: netns ebtables: ebtable_filter in netns
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index 055e684..d258e16 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -9,5 +9,6 @@
struct netns_xt {
struct list_head tables[NFPROTO_NUMPROTO];
struct ebt_table *broute_table;
+ struct ebt_table *frame_filter;
};
#endif
diff --git a/net/bridge/netfilter/ebtable_filter.c b/net/bridge/netfilter/ebtable_filter.c
index 596564c..2b2e804 100644
--- a/net/bridge/netfilter/ebtable_filter.c
+++ b/net/bridge/netfilter/ebtable_filter.c
@@ -50,41 +50,47 @@
return 0;
}
-static struct ebt_table __frame_filter =
+static struct ebt_table frame_filter =
{
.name = "filter",
.table = &initial_table,
.valid_hooks = FILTER_VALID_HOOKS,
- .lock = __RW_LOCK_UNLOCKED(__frame_filter.lock),
+ .lock = __RW_LOCK_UNLOCKED(frame_filter.lock),
.check = check,
.me = THIS_MODULE,
};
-static struct ebt_table *frame_filter;
static unsigned int
-ebt_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
+ebt_in_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, int (*okfn)(struct sk_buff *))
{
- return ebt_do_table(hook, skb, in, out, frame_filter);
+ return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_filter);
+}
+
+static unsigned int
+ebt_out_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
+ const struct net_device *out, int (*okfn)(struct sk_buff *))
+{
+ return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_filter);
}
static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {
{
- .hook = ebt_hook,
+ .hook = ebt_in_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_LOCAL_IN,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
- .hook = ebt_hook,
+ .hook = ebt_in_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_FORWARD,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
- .hook = ebt_hook,
+ .hook = ebt_out_hook,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
@@ -92,23 +98,41 @@
},
};
+static int __net_init frame_filter_net_init(struct net *net)
+{
+ net->xt.frame_filter = ebt_register_table(net, &frame_filter);
+ if (IS_ERR(net->xt.frame_filter))
+ return PTR_ERR(net->xt.frame_filter);
+ return 0;
+}
+
+static void __net_exit frame_filter_net_exit(struct net *net)
+{
+ ebt_unregister_table(net->xt.frame_filter);
+}
+
+static struct pernet_operations frame_filter_net_ops = {
+ .init = frame_filter_net_init,
+ .exit = frame_filter_net_exit,
+};
+
static int __init ebtable_filter_init(void)
{
int ret;
- frame_filter = ebt_register_table(&init_net, &__frame_filter);
- if (IS_ERR(frame_filter))
- return PTR_ERR(frame_filter);
+ ret = register_pernet_subsys(&frame_filter_net_ops);
+ if (ret < 0)
+ return ret;
ret = nf_register_hooks(ebt_ops_filter, ARRAY_SIZE(ebt_ops_filter));
if (ret < 0)
- ebt_unregister_table(frame_filter);
+ unregister_pernet_subsys(&frame_filter_net_ops);
return ret;
}
static void __exit ebtable_filter_fini(void)
{
nf_unregister_hooks(ebt_ops_filter, ARRAY_SIZE(ebt_ops_filter));
- ebt_unregister_table(frame_filter);
+ unregister_pernet_subsys(&frame_filter_net_ops);
}
module_init(ebtable_filter_init);
