linux/net/netfilter/xt_helper.c

// SPDX-License-Identifier: GPL-2.0-only
/* iptables module to match on related connections */
/*
 * (C) 2001 Martin Josefsson <[email protected]>
 */
#define pr_fmt(fmt) …
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter.h>
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_helper.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_helper.h>

MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_ALIAS(…) …;
MODULE_ALIAS(…) …;


static bool
helper_mt(const struct sk_buff *skb, struct xt_action_param *par)
{ … }

static int helper_mt_check(const struct xt_mtchk_param *par)
{ … }

static void helper_mt_destroy(const struct xt_mtdtor_param *par)
{ … }

static struct xt_match helper_mt_reg __read_mostly = …;

static int __init helper_mt_init(void)
{ … }

static void __exit helper_mt_exit(void)
{ … }

module_init(…) …;
module_exit(helper_mt_exit);