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/* Shared library add-on to iptables for IPV4OPTSSTRIP
* This modules strip all the IP options.
*
* (C) 2001 by Fabrice MARIE <fabrice@netfilter.org>
* This program is distributed under the terms of GNU GPL v2, 1991
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <getopt.h>
#include <iptables.h>
#include <linux/netfilter_ipv4/ip_tables.h>
static void help(void)
{
printf("IPV4OPTSSTRIP v%s target takes no option !! Make sure you use it in the mangle table.\n",
IPTABLES_VERSION);
}
static struct option opts[] = {
{ 0 }
};
/* Function which parses command options; returns true if it
ate an option */
static int
parse(int c, char **argv, int invert, unsigned int *flags,
const struct ipt_entry *entry,
struct ipt_entry_target **target)
{
return 0;
}
static void
final_check(unsigned int flags)
{
}
/* Prints out the targinfo. */
static void
print(const struct ipt_ip *ip,
const struct ipt_entry_target *target,
int numeric)
{
/* nothing to print, we don't take option... */
}
/* Saves the stuff in parsable form to stdout. */
static void
save(const struct ipt_ip *ip, const struct ipt_entry_target *target)
{
/* nothing to print, we don't take option... */
}
static struct iptables_target IPV4OPTSSTRIP = {
.next = NULL,
.name = "IPV4OPTSSTRIP",
.version = IPTABLES_VERSION,
.size = IPT_ALIGN(0),
.userspacesize = IPT_ALIGN(0),
.help = &help,
.parse = &parse,
.final_check = &final_check,
.print = &print,
.save = &save,
.extra_opts = opts
};
void _init(void)
{
register_target(&IPV4OPTSSTRIP);
}
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