root/net/netfilter/xt_NFQUEUE.c

DEFINITIONS

1. nfqueue_tg
2. nfqueue_tg_init
3. nfqueue_tg_exit

/* iptables module for using new netfilter netlink queue
 *
 * (C) 2005 by Harald Welte <laforge@netfilter.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

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

#include <linux/netfilter.h>
#include <linux/netfilter_arp.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_NFQUEUE.h>

MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("Xtables: packet forwarding to netlink");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_NFQUEUE");
MODULE_ALIAS("ip6t_NFQUEUE");
MODULE_ALIAS("arpt_NFQUEUE");

static unsigned int
nfqueue_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
        const struct xt_NFQ_info *tinfo = par->targinfo;

        return NF_QUEUE_NR(tinfo->queuenum);
}

static struct xt_target nfqueue_tg_reg[] __read_mostly = {
        {
                .name           = "NFQUEUE",
                .family         = NFPROTO_IPV4,
                .target         = nfqueue_tg,
                .targetsize     = sizeof(struct xt_NFQ_info),
                .me             = THIS_MODULE,
        },
        {
                .name           = "NFQUEUE",
                .family         = NFPROTO_IPV6,
                .target         = nfqueue_tg,
                .targetsize     = sizeof(struct xt_NFQ_info),
                .me             = THIS_MODULE,
        },
        {
                .name           = "NFQUEUE",
                .family         = NF_ARP,
                .target         = nfqueue_tg,
                .targetsize     = sizeof(struct xt_NFQ_info),
                .me             = THIS_MODULE,
        },
};

static int __init nfqueue_tg_init(void)
{
        return xt_register_targets(nfqueue_tg_reg, ARRAY_SIZE(nfqueue_tg_reg));
}

static void __exit nfqueue_tg_exit(void)
{
        xt_unregister_targets(nfqueue_tg_reg, ARRAY_SIZE(nfqueue_tg_reg));
}

module_init(nfqueue_tg_init);
module_exit(nfqueue_tg_exit);