static int __init arptable_filter_init(void)
{
int ret;
arpfilter_ops = xt_hook_ops_alloc(&packet_filter, arptable_filter_hook);
if (IS_ERR(arpfilter_ops))
return PTR_ERR(arpfilter_ops);
ret = register_pernet_subsys(&arptable_filter_net_ops);
if (ret < 0) {
kfree(arpfilter_ops);
return ret;
}
return ret;
}
static int __init ip6table_security_init(void)
{
int ret;
sectbl_ops = xt_hook_ops_alloc(&security_table, ip6table_security_hook);
if (IS_ERR(sectbl_ops))
return PTR_ERR(sectbl_ops);
ret = register_pernet_subsys(&ip6table_security_net_ops);
if (ret < 0) {
kfree(sectbl_ops);
return ret;
}
ret = ip6table_security_table_init(&init_net);
if (ret) {
unregister_pernet_subsys(&ip6table_security_net_ops);
kfree(sectbl_ops);
}
return ret;
}
static int __init iptable_mangle_init(void)
{
int ret;
mangle_ops = xt_hook_ops_alloc(&packet_mangler, iptable_mangle_hook);
if (IS_ERR(mangle_ops)) {
ret = PTR_ERR(mangle_ops);
return ret;
}
ret = register_pernet_subsys(&iptable_mangle_net_ops);
if (ret < 0) {
kfree(mangle_ops);
return ret;
}
ret = iptable_mangle_table_init(&init_net);
if (ret) {
unregister_pernet_subsys(&iptable_mangle_net_ops);
kfree(mangle_ops);
}
return ret;
}