Release 4.11 net/bridge/netfilter/ebtable_filter.c
/*
* ebtable_filter
*
* Authors:
* Bart De Schuymer <bdschuym@pandora.be>
*
* April, 2002
*
*/
#include <linux/netfilter_bridge/ebtables.h>
#include <linux/module.h>
#define FILTER_VALID_HOOKS ((1 << NF_BR_LOCAL_IN) | (1 << NF_BR_FORWARD) | \
(1 << NF_BR_LOCAL_OUT))
static struct ebt_entries initial_chains[] = {
{
.name = "INPUT",
.policy = EBT_ACCEPT,
},
{
.name = "FORWARD",
.policy = EBT_ACCEPT,
},
{
.name = "OUTPUT",
.policy = EBT_ACCEPT,
},
};
static struct ebt_replace_kernel initial_table = {
.name = "filter",
.valid_hooks = FILTER_VALID_HOOKS,
.entries_size = 3 * sizeof(struct ebt_entries),
.hook_entry = {
[NF_BR_LOCAL_IN] = &initial_chains[0],
[NF_BR_FORWARD] = &initial_chains[1],
[NF_BR_LOCAL_OUT] = &initial_chains[2],
},
.entries = (char *)initial_chains,
};
static int check(const struct ebt_table_info *info, unsigned int valid_hooks)
{
if (valid_hooks & ~FILTER_VALID_HOOKS)
return -EINVAL;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bart De Schuymer | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static const struct ebt_table frame_filter = {
.name = "filter",
.table = &initial_table,
.valid_hooks = FILTER_VALID_HOOKS,
.check = check,
.me = THIS_MODULE,
};
static unsigned int
ebt_in_hook(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state)
{
return ebt_do_table(skb, state, state->net->xt.frame_filter);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alexey Dobriyan | 29 | 76.32% | 2 | 33.33% |
| David S. Miller | 5 | 13.16% | 1 | 16.67% |
| Eric W. Biedermann | 3 | 7.89% | 2 | 33.33% |
| Patrick McHardy | 1 | 2.63% | 1 | 16.67% |
| Total | 38 | 100.00% | 6 | 100.00% |
static unsigned int
ebt_out_hook(void *priv, struct sk_buff *skb,
const struct nf_hook_state *state)
{
return ebt_do_table(skb, state, state->net->xt.frame_filter);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bart De Schuymer | 23 | 60.53% | 1 | 14.29% |
| David S. Miller | 5 | 13.16% | 1 | 14.29% |
| Alexey Dobriyan | 4 | 10.53% | 1 | 14.29% |
| Eric W. Biedermann | 3 | 7.89% | 2 | 28.57% |
| Herbert Xu | 2 | 5.26% | 1 | 14.29% |
| Patrick McHardy | 1 | 2.63% | 1 | 14.29% |
| Total | 38 | 100.00% | 7 | 100.00% |
static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {
{
.hook = ebt_in_hook,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_IN,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
.hook = ebt_in_hook,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_FORWARD,
.priority = NF_BR_PRI_FILTER_BRIDGED,
},
{
.hook = ebt_out_hook,
.pf = NFPROTO_BRIDGE,
.hooknum = NF_BR_LOCAL_OUT,
.priority = NF_BR_PRI_FILTER_OTHER,
},
};
static int __net_init frame_filter_net_init(struct net *net)
{
net->xt.frame_filter = ebt_register_table(net, &frame_filter);
return PTR_ERR_OR_ZERO(net->xt.frame_filter);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alexey Dobriyan | 23 | 63.89% | 3 | 60.00% |
| Bart De Schuymer | 12 | 33.33% | 1 | 20.00% |
| Rusty Russell | 1 | 2.78% | 1 | 20.00% |
| Total | 36 | 100.00% | 5 | 100.00% |
static void __net_exit frame_filter_net_exit(struct net *net)
{
ebt_unregister_table(net, net->xt.frame_filter);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alexey Dobriyan | 23 | 100.00% | 2 | 100.00% |
| Total | 23 | 100.00% | 2 | 100.00% |
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;
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)
unregister_pernet_subsys(&frame_filter_net_ops);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alexey Dobriyan | 38 | 67.86% | 2 | 50.00% |
| Bart De Schuymer | 17 | 30.36% | 1 | 25.00% |
| Andries E. Brouwer | 1 | 1.79% | 1 | 25.00% |
| Total | 56 | 100.00% | 4 | 100.00% |
static void __exit ebtable_filter_fini(void)
{
nf_unregister_hooks(ebt_ops_filter, ARRAY_SIZE(ebt_ops_filter));
unregister_pernet_subsys(&frame_filter_net_ops);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bart De Schuymer | 17 | 68.00% | 1 | 25.00% |
| Alexey Dobriyan | 7 | 28.00% | 2 | 50.00% |
| Andrew Morton | 1 | 4.00% | 1 | 25.00% |
| Total | 25 | 100.00% | 4 | 100.00% |
module_init(ebtable_filter_init);
module_exit(ebtable_filter_fini);
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bart De Schuymer | 247 | 48.05% | 3 | 13.64% |
| Alexey Dobriyan | 145 | 28.21% | 5 | 22.73% |
| Art Haas | 90 | 17.51% | 1 | 4.55% |
| David S. Miller | 10 | 1.95% | 1 | 4.55% |
| Eric W. Biedermann | 6 | 1.17% | 2 | 9.09% |
| Jan Engelhardt | 4 | 0.78% | 2 | 9.09% |
| Andrew Morton | 3 | 0.58% | 1 | 4.55% |
| Patrick McHardy | 3 | 0.58% | 2 | 9.09% |
| Herbert Xu | 2 | 0.39% | 1 | 4.55% |
| Ian Morris | 1 | 0.19% | 1 | 4.55% |
| Rusty Russell | 1 | 0.19% | 1 | 4.55% |
| Andries E. Brouwer | 1 | 0.19% | 1 | 4.55% |
| Al Viro | 1 | 0.19% | 1 | 4.55% |
| Total | 514 | 100.00% | 22 | 100.00% |
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