mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-10-20 10:28:24 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
/*
|
|
* ebtable_broute
|
|
*
|
|
* Authors:
|
|
* Bart De Schuymer <bdschuym@pandora.be>
|
|
*
|
|
* April, 2002
|
|
*
|
|
* This table lets you choose between routing and bridging for frames
|
|
* entering on a bridge enslaved nic. This table is traversed before any
|
|
* other ebtables table. See net/bridge/br_input.c.
|
|
*/
|
|
|
|
#include <linux/netfilter_bridge/ebtables.h>
|
|
#include <linux/module.h>
|
|
#include <linux/if_bridge.h>
|
|
|
|
/* EBT_ACCEPT means the frame will be bridged
|
|
* EBT_DROP means the frame will be routed
|
|
*/
|
|
static struct ebt_entries initial_chain = {
|
|
.name = "BROUTING",
|
|
.policy = EBT_ACCEPT,
|
|
};
|
|
|
|
static struct ebt_replace initial_table =
|
|
{
|
|
.name = "broute",
|
|
.valid_hooks = 1 << NF_BR_BROUTING,
|
|
.entries_size = sizeof(struct ebt_entries),
|
|
.hook_entry = {
|
|
[NF_BR_BROUTING] = &initial_chain,
|
|
},
|
|
.entries = (char *)&initial_chain,
|
|
};
|
|
|
|
static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
|
|
{
|
|
if (valid_hooks & ~(1 << NF_BR_BROUTING))
|
|
return -EINVAL;
|
|
return 0;
|
|
}
|
|
|
|
static struct ebt_table broute_table =
|
|
{
|
|
.name = "broute",
|
|
.table = &initial_table,
|
|
.valid_hooks = 1 << NF_BR_BROUTING,
|
|
.lock = RW_LOCK_UNLOCKED,
|
|
.check = check,
|
|
.me = THIS_MODULE,
|
|
};
|
|
|
|
static int ebt_broute(struct sk_buff **pskb)
|
|
{
|
|
int ret;
|
|
|
|
ret = ebt_do_table(NF_BR_BROUTING, pskb, (*pskb)->dev, NULL,
|
|
&broute_table);
|
|
if (ret == NF_DROP)
|
|
return 1; /* route it */
|
|
return 0; /* bridge it */
|
|
}
|
|
|
|
static int __init init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = ebt_register_table(&broute_table);
|
|
if (ret < 0)
|
|
return ret;
|
|
/* see br_input.c */
|
|
br_should_route_hook = ebt_broute;
|
|
return ret;
|
|
}
|
|
|
|
static void __exit fini(void)
|
|
{
|
|
br_should_route_hook = NULL;
|
|
synchronize_net();
|
|
ebt_unregister_table(&broute_table);
|
|
}
|
|
|
|
module_init(init);
|
|
module_exit(fini);
|
|
MODULE_LICENSE("GPL");
|