1/*
2 * This is a module which is used for setting the skb->priority field
3 * of an skb for qdisc classification.
4 */
5
6/* (C) 2001-2002 Patrick McHardy <kaber@trash.net>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/skbuff.h>
15#include <linux/ip.h>
16#include <net/checksum.h>
17
18#include <linux/netfilter_ipv4.h>
19#include <linux/netfilter_ipv6.h>
20#include <linux/netfilter/x_tables.h>
21#include <linux/netfilter/xt_CLASSIFY.h>
22
23MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
24MODULE_LICENSE("GPL");
25MODULE_DESCRIPTION("iptables qdisc classification target module");
26MODULE_ALIAS("ipt_CLASSIFY");
27
28static unsigned int
29target(struct sk_buff **pskb,
30       const struct net_device *in,
31       const struct net_device *out,
32       unsigned int hooknum,
33       const struct xt_target *target,
34       const void *targinfo)
35{
36	const struct xt_classify_target_info *clinfo = targinfo;
37
38	(*pskb)->priority = clinfo->priority;
39	return XT_CONTINUE;
40}
41
42static struct xt_target xt_classify_target[] = {
43	{
44		.family		= AF_INET,
45		.name 		= "CLASSIFY",
46		.target 	= target,
47		.targetsize	= sizeof(struct xt_classify_target_info),
48		.table		= "mangle",
49		.hooks		= (1 << NF_IP_LOCAL_OUT) |
50				  (1 << NF_IP_FORWARD) |
51				  (1 << NF_IP_POST_ROUTING),
52		.me 		= THIS_MODULE,
53	},
54	{
55		.name 		= "CLASSIFY",
56		.family		= AF_INET6,
57		.target 	= target,
58		.targetsize	= sizeof(struct xt_classify_target_info),
59		.table		= "mangle",
60		.hooks		= (1 << NF_IP6_LOCAL_OUT) |
61				  (1 << NF_IP6_FORWARD) |
62				  (1 << NF_IP6_POST_ROUTING),
63		.me 		= THIS_MODULE,
64	},
65};
66
67static int __init xt_classify_init(void)
68{
69	return xt_register_targets(xt_classify_target,
70				   ARRAY_SIZE(xt_classify_target));
71}
72
73static void __exit xt_classify_fini(void)
74{
75	xt_unregister_targets(xt_classify_target,
76			      ARRAY_SIZE(xt_classify_target));
77}
78
79module_init(xt_classify_init);
80module_exit(xt_classify_fini);
81