1 /* Kernel module to match TOS values. */
3 /* (C) 1999-2001 Paul `Rusty' Russell
4 * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/skbuff.h>
14 #include <linux/netfilter_ipv4/ipt_tos.h>
15 #include <linux/netfilter_ipv4/ip_tables.h>
17 MODULE_LICENSE("GPL");
18 MODULE_DESCRIPTION("iptables TOS match module");
21 match(const struct sk_buff
*skb
,
22 const struct net_device
*in
,
23 const struct net_device
*out
,
24 const struct xt_match
*match
,
25 const void *matchinfo
,
30 const struct ipt_tos_info
*info
= matchinfo
;
32 return (skb
->nh
.iph
->tos
== info
->tos
) ^ info
->invert
;
35 static struct ipt_match tos_match
= {
38 .matchsize
= sizeof(struct ipt_tos_info
),
42 static int __init
ipt_multiport_init(void)
44 return ipt_register_match(&tos_match
);
47 static void __exit
ipt_multiport_fini(void)
49 ipt_unregister_match(&tos_match
);
52 module_init(ipt_multiport_init
);
53 module_exit(ipt_multiport_fini
);