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netfilter: netns ebtables: ebtable_broute in netns

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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Alexey Dobriyan 2008-11-04 14:29:03 +01:00 committed by Patrick McHardy
parent dbcdf85a2e
commit 8157e6d16a
2 changed files with 30 additions and 8 deletions
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3
include/net/netns/x_tables.h
View File

@ -4,7 +4,10 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/netfilter.h> #include <linux/netfilter.h>
struct ebt_table;
struct netns_xt { struct netns_xt {
struct list_head tables[NFPROTO_NUMPROTO]; struct list_head tables[NFPROTO_NUMPROTO];
struct ebt_table *broute_table;
}; };
#endif #endif

35
net/bridge/netfilter/ebtable_broute.c
View File

@ -41,33 +41,52 @@ static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
return 0; return 0;
} }
static struct ebt_table __broute_table = static struct ebt_table broute_table =
{ {
.name = "broute", .name = "broute",
.table = &initial_table, .table = &initial_table,
.valid_hooks = 1 << NF_BR_BROUTING, .valid_hooks = 1 << NF_BR_BROUTING,
.lock = __RW_LOCK_UNLOCKED(__broute_table.lock), .lock = __RW_LOCK_UNLOCKED(broute_table.lock),
.check = check, .check = check,
.me = THIS_MODULE, .me = THIS_MODULE,
}; };
static struct ebt_table *broute_table;
static int ebt_broute(struct sk_buff *skb) static int ebt_broute(struct sk_buff *skb)
{ {
int ret; int ret;
ret = ebt_do_table(NF_BR_BROUTING, skb, skb->dev, NULL, ret = ebt_do_table(NF_BR_BROUTING, skb, skb->dev, NULL,
broute_table); dev_net(skb->dev)->xt.broute_table);
if (ret == NF_DROP) if (ret == NF_DROP)
return 1; /* route it */ return 1; /* route it */
return 0; /* bridge 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) static int __init ebtable_broute_init(void)
{ {
broute_table = ebt_register_table(&init_net, &__broute_table); int ret;
if (IS_ERR(broute_table))
return PTR_ERR(broute_table); ret = register_pernet_subsys(&broute_net_ops);
if (ret < 0)
return ret;
/* see br_input.c */ /* see br_input.c */
rcu_assign_pointer(br_should_route_hook, ebt_broute); rcu_assign_pointer(br_should_route_hook, ebt_broute);
return 0; return 0;
@ -77,7 +96,7 @@ static void __exit ebtable_broute_fini(void)
{ {
rcu_assign_pointer(br_should_route_hook, NULL); rcu_assign_pointer(br_should_route_hook, NULL);
synchronize_net(); synchronize_net();
ebt_unregister_table(broute_table); unregister_pernet_subsys(&broute_net_ops);
} }
module_init(ebtable_broute_init); module_init(ebtable_broute_init);