5 * Bart De Schuymer <bdschuym@pandora.be>
9 * This table lets you choose between routing and bridging for frames
10 * entering on a bridge enslaved nic. This table is traversed before any
11 * other ebtables table. See net/bridge/br_input.c.
14 #include <linux/netfilter_bridge/ebtables.h>
15 #include <linux/module.h>
16 #include <linux/if_bridge.h>
18 /* EBT_ACCEPT means the frame will be bridged
19 * EBT_DROP means the frame will be routed
21 static struct ebt_entries initial_chain = {
26 static struct ebt_replace_kernel initial_table =
29 .valid_hooks = 1 << NF_BR_BROUTING,
30 .entries_size = sizeof(struct ebt_entries),
32 [NF_BR_BROUTING] = &initial_chain,
34 .entries = (char *)&initial_chain,
37 static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
39 if (valid_hooks & ~(1 << NF_BR_BROUTING))
44 static struct ebt_table broute_table =
47 .table = &initial_table,
48 .valid_hooks = 1 << NF_BR_BROUTING,
49 .lock = RW_LOCK_UNLOCKED,
54 static int ebt_broute(struct sk_buff *skb)
58 ret = ebt_do_table(NF_BR_BROUTING, skb, skb->dev, NULL,
61 return 1; /* route it */
62 return 0; /* bridge it */
65 static int __init ebtable_broute_init(void)
69 ret = ebt_register_table(&broute_table);
73 br_should_route_hook = ebt_broute;
77 static void __exit ebtable_broute_fini(void)
79 br_should_route_hook = NULL;
81 ebt_unregister_table(&broute_table);
84 module_init(ebtable_broute_init);
85 module_exit(ebtable_broute_fini);
86 MODULE_LICENSE("GPL");