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authorAlexey Dobriyan <adobriyan@gmail.com>2008-11-04 14:30:46 +0100
committerPatrick McHardy <kaber@trash.net>2008-11-04 14:30:46 +0100
commitb71b30a626fd0e43c825a05036e7a2c3f377a563 (patch)
tree0e2f28638300c5ccb94e736461c77065815d069e
parent4aad10938d4e4e8364b664cd5420c3bfeb9b679b (diff)
downloadop-kernel-dev-b71b30a626fd0e43c825a05036e7a2c3f377a563.zip
op-kernel-dev-b71b30a626fd0e43c825a05036e7a2c3f377a563.tar.gz
netfilter: netns ebtables: ebtable_nat in netns
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
-rw-r--r--include/net/netns/x_tables.h1
-rw-r--r--net/bridge/netfilter/ebtable_nat.c47
2 files changed, 33 insertions, 15 deletions
diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index d258e16..9554a64 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -10,5 +10,6 @@ struct netns_xt {
struct list_head tables[NFPROTO_NUMPROTO];
struct ebt_table *broute_table;
struct ebt_table *frame_filter;
+ struct ebt_table *frame_nat;
};
#endif
diff --git a/net/bridge/netfilter/ebtable_nat.c b/net/bridge/netfilter/ebtable_nat.c
index 0d8fc5b..3fe1ae8 100644
--- a/net/bridge/netfilter/ebtable_nat.c
+++ b/net/bridge/netfilter/ebtable_nat.c
@@ -50,48 +50,47 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0;
}
-static struct ebt_table __frame_nat =
+static struct ebt_table frame_nat =
{
.name = "nat",
.table = &initial_table,
.valid_hooks = NAT_VALID_HOOKS,
- .lock = __RW_LOCK_UNLOCKED(__frame_nat.lock),
+ .lock = __RW_LOCK_UNLOCKED(frame_nat.lock),
.check = check,
.me = THIS_MODULE,
};
-static struct ebt_table *frame_nat;
static unsigned int
-ebt_nat_dst(unsigned int hook, struct sk_buff *skb, const struct net_device *in
+ebt_nat_in(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_nat);
+ return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_nat);
}
static unsigned int
-ebt_nat_src(unsigned int hook, struct sk_buff *skb, const struct net_device *in
+ebt_nat_out(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_nat);
+ return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_nat);
}
static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {
{
- .hook = ebt_nat_dst,
+ .hook = ebt_nat_out,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_NAT_DST_OTHER,
},
{
- .hook = ebt_nat_src,
+ .hook = ebt_nat_out,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_POST_ROUTING,
.priority = NF_BR_PRI_NAT_SRC,
},
{
- .hook = ebt_nat_dst,
+ .hook = ebt_nat_in,
.owner = THIS_MODULE,
.pf = PF_BRIDGE,
.hooknum = NF_BR_PRE_ROUTING,
@@ -99,23 +98,41 @@ static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {
},
};
+static int __net_init frame_nat_net_init(struct net *net)
+{
+ net->xt.frame_nat = ebt_register_table(net, &frame_nat);
+ if (IS_ERR(net->xt.frame_nat))
+ return PTR_ERR(net->xt.frame_nat);
+ return 0;
+}
+
+static void __net_exit frame_nat_net_exit(struct net *net)
+{
+ ebt_unregister_table(net->xt.frame_nat);
+}
+
+static struct pernet_operations frame_nat_net_ops = {
+ .init = frame_nat_net_init,
+ .exit = frame_nat_net_exit,
+};
+
static int __init ebtable_nat_init(void)
{
int ret;
- frame_nat = ebt_register_table(&init_net, &__frame_nat);
- if (IS_ERR(frame_nat))
- return PTR_ERR(frame_nat);
+ ret = register_pernet_subsys(&frame_nat_net_ops);
+ if (ret < 0)
+ return ret;
ret = nf_register_hooks(ebt_ops_nat, ARRAY_SIZE(ebt_ops_nat));
if (ret < 0)
- ebt_unregister_table(frame_nat);
+ unregister_pernet_subsys(&frame_nat_net_ops);
return ret;
}
static void __exit ebtable_nat_fini(void)
{
nf_unregister_hooks(ebt_ops_nat, ARRAY_SIZE(ebt_ops_nat));
- ebt_unregister_table(frame_nat);
+ unregister_pernet_subsys(&frame_nat_net_ops);
}
module_init(ebtable_nat_init);
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