A Linux netfilter module to aid in (d)dos protection
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/*
* "libxt_ts3init_reset" target extension for iptables
* Niels Werensteijn <niels werensteijn [at] teamspeak com>, 2016-10-03
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License; either version 2
* or 3 of the License, as published by the Free Software Foundation.
*/
#include <stdbool.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <xtables.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include "ts3init_random_seed.h"
#include "ts3init_target.h"
static void ts3init_get_cookie_help(void)
{
printf("TS3INIT_GET_COOKIE takes no options\n\n");
}
static int ts3init_get_cookie_parse(int c, char **argv, int invert, unsigned int *flags,
const void *entry, struct xt_entry_target **target)
{
return false;
}
static void ts3init_get_cookie_check(unsigned int flags)
{
}
/* register and init */
static struct xtables_target ts3init_get_cookie_tg_reg =
{
.name = "TS3INIT_GET_COOKIE",
.revision = 0,
.family = NFPROTO_UNSPEC,
.version = XTABLES_VERSION,
.help = ts3init_get_cookie_help,
.parse = ts3init_get_cookie_parse,
.final_check = ts3init_get_cookie_check,
};
static __attribute__((constructor)) void ts3init_get_cookie_tg_ldr(void)
{
xtables_register_target(&ts3init_get_cookie_tg_reg);
}