tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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("Xtables: Qdisc classification");
26MODULE_ALIAS("ipt_CLASSIFY");
27MODULE_ALIAS("ip6t_CLASSIFY");
28
29static unsigned int
30classify_tg(struct sk_buff *skb, const struct net_device *in,
31 const struct net_device *out, unsigned int hooknum,
32 const struct xt_target *target, const void *targinfo)
33{
34 const struct xt_classify_target_info *clinfo = targinfo;
35
36 skb->priority = clinfo->priority;
37 return XT_CONTINUE;
38}
39
40static struct xt_target classify_tg_reg[] __read_mostly = {
41 {
42 .family = AF_INET,
43 .name = "CLASSIFY",
44 .target = classify_tg,
45 .targetsize = sizeof(struct xt_classify_target_info),
46 .table = "mangle",
47 .hooks = (1 << NF_INET_LOCAL_OUT) |
48 (1 << NF_INET_FORWARD) |
49 (1 << NF_INET_POST_ROUTING),
50 .me = THIS_MODULE,
51 },
52 {
53 .name = "CLASSIFY",
54 .family = AF_INET6,
55 .target = classify_tg,
56 .targetsize = sizeof(struct xt_classify_target_info),
57 .table = "mangle",
58 .hooks = (1 << NF_INET_LOCAL_OUT) |
59 (1 << NF_INET_FORWARD) |
60 (1 << NF_INET_POST_ROUTING),
61 .me = THIS_MODULE,
62 },
63};
64
65static int __init classify_tg_init(void)
66{
67 return xt_register_targets(classify_tg_reg,
68 ARRAY_SIZE(classify_tg_reg));
69}
70
71static void __exit classify_tg_exit(void)
72{
73 xt_unregister_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
74}
75
76module_init(classify_tg_init);
77module_exit(classify_tg_exit);