linux/net/netfilter/nf_nat_amanda.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* Amanda extension for TCP NAT alteration.
 * (C) 2002 by Brian J. Murrell <[email protected]>
 * based on a copy of HW's ip_nat_irc.c as well as other modules
 * (C) 2006-2012 Patrick McHardy <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/udp.h>

#include <net/netfilter/nf_conntrack_helper.h>
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_nat_helper.h>
#include <linux/netfilter/nf_conntrack_amanda.h>

#define NAT_HELPER_NAME …

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS_NF_NAT_HELPER(…);

static struct nf_conntrack_nat_helper nat_helper_amanda = …;

static unsigned int help(struct sk_buff *skb,
			 enum ip_conntrack_info ctinfo,
			 unsigned int protoff,
			 unsigned int matchoff,
			 unsigned int matchlen,
			 struct nf_conntrack_expect *exp)
{ … }

static void __exit nf_nat_amanda_fini(void)
{ … }

static int __init nf_nat_amanda_init(void)
{ … }

module_init(…) …;
module_exit(nf_nat_amanda_fini);