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#include <linux/netfilter_arp.h>
23
24MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
25MODULE_LICENSE("GPL");
26MODULE_DESCRIPTION("Xtables: Qdisc classification");
27MODULE_ALIAS("ipt_CLASSIFY");
28MODULE_ALIAS("ip6t_CLASSIFY");
29MODULE_ALIAS("arpt_CLASSIFY");
30
31static unsigned int
32classify_tg(struct sk_buff *skb, const struct xt_action_param *par)
33{
34	const struct xt_classify_target_info *clinfo = par->targinfo;
35
36	skb->priority = clinfo->priority;
37	return XT_CONTINUE;
38}
39
40static struct xt_target classify_tg_reg[] __read_mostly = {
41	{
42		.name       = "CLASSIFY",
43		.revision   = 0,
44		.family     = NFPROTO_UNSPEC,
45		.hooks      = (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) |
46		              (1 << NF_INET_POST_ROUTING),
47		.target     = classify_tg,
48		.targetsize = sizeof(struct xt_classify_target_info),
49		.me         = THIS_MODULE,
50	},
51	{
52		.name       = "CLASSIFY",
53		.revision   = 0,
54		.family     = NFPROTO_ARP,
55		.hooks      = (1 << NF_ARP_OUT) | (1 << NF_ARP_FORWARD),
56		.target     = classify_tg,
57		.targetsize = sizeof(struct xt_classify_target_info),
58		.me         = THIS_MODULE,
59	},
60};
61
62static int __init classify_tg_init(void)
63{
64	return xt_register_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
65}
66
67static void __exit classify_tg_exit(void)
68{
69	xt_unregister_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
70}
71
72module_init(classify_tg_init);
73module_exit(classify_tg_exit);
74