static int __net_init arptable_filter_net_init(struct net *net)
{
/* Register table */
net->ipv4.arptable_filter =
arpt_register_table(net, &packet_filter, &initial_table.repl);
if (IS_ERR(net->ipv4.arptable_filter))
return PTR_ERR(net->ipv4.arptable_filter);
return 0;
}
static int __net_init arptable_filter_net_init(struct net *net)
{
struct arpt_replace *repl;
repl = arpt_alloc_initial_table(&packet_filter);
if (repl == NULL)
return -ENOMEM;
net->ipv4.arptable_filter =
arpt_register_table(net, &packet_filter, repl);
kfree(repl);
return PTR_ERR_OR_ZERO(net->ipv4.arptable_filter);
}
static int __net_init arptable_filter_table_init(struct net *net)
{
struct arpt_replace *repl;
int err;
if (net->ipv4.arptable_filter)
return 0;
repl = arpt_alloc_initial_table(&packet_filter);
if (repl == NULL)
return -ENOMEM;
err = arpt_register_table(net, &packet_filter, repl, arpfilter_ops,
&net->ipv4.arptable_filter);
kfree(repl);
return err;
}
static int __init arptable_filter_init(void)
{
int ret;
/* Register table */
ret = arpt_register_table(&packet_filter, &initial_table.repl);
if (ret < 0)
return ret;
ret = nf_register_hooks(arpt_ops, ARRAY_SIZE(arpt_ops));
if (ret < 0)
goto cleanup_table;
return ret;
cleanup_table:
arpt_unregister_table(&packet_filter);
return ret;
}