[5494bc]: extensions / xt_STEAL.c Maximize Restore History

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xt_STEAL.c    68 lines (62 with data), 1.4 kB

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/*
* "STEAL" demo target extension for Xtables
* written by Jan Engelhardt, 2008 - 2009
* placed in the Public Domain
*/
#include <linux/module.h>
#include <linux/netfilter.h>
#include <linux/skbuff.h>
#include "compat_xtables.h"
static unsigned int
steal_tg(struct sk_buff **pskb, const struct xt_action_param *par)
{
kfree_skb(*pskb);
return NF_STOLEN;
}
static struct xt_target steal_tg_reg[] __read_mostly = {
{
.name = "STEAL",
.revision = 0,
.family = NFPROTO_UNSPEC,
.target = steal_tg,
.me = THIS_MODULE,
},
{
.name = "STEAL",
.revision = 0,
.family = NFPROTO_IPV6,
.target = steal_tg,
.me = THIS_MODULE,
},
{
.name = "STEAL",
.revision = 0,
.family = NFPROTO_ARP,
.target = steal_tg,
.me = THIS_MODULE,
},
{
.name = "STEAL",
.revision = 0,
.family = NFPROTO_BRIDGE,
.target = steal_tg,
.me = THIS_MODULE,
},
};
static int __init steal_tg_init(void)
{
return xt_register_targets(steal_tg_reg, ARRAY_SIZE(steal_tg_reg));
}
static void __exit steal_tg_exit(void)
{
xt_unregister_targets(steal_tg_reg, ARRAY_SIZE(steal_tg_reg));
}
module_init(steal_tg_init);
module_exit(steal_tg_exit);
MODULE_AUTHOR("Jan Engelhardt ");
MODULE_DESCRIPTION("Xtables: Silently DROP packets on output chain");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_STEAL");
MODULE_ALIAS("ip6t_STEAL");
MODULE_ALIAS("arpt_STEAL");
MODULE_ALIAS("ebt_STEAL");