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/x_tables.h>
19#include <linux/netfilter/xt_CLASSIFY.h>
20
21MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
22MODULE_LICENSE("GPL");
23MODULE_DESCRIPTION("iptables qdisc classification target module");
24MODULE_ALIAS("ipt_CLASSIFY");
25
26static unsigned int
27target(struct sk_buff **pskb,
28 const struct net_device *in,
29 const struct net_device *out,
30 unsigned int hooknum,
31 const struct xt_target *target,
32 const void *targinfo)
33{
34 const struct xt_classify_target_info *clinfo = targinfo;
35
36 if ((*pskb)->priority != clinfo->priority)
37 (*pskb)->priority = clinfo->priority;
38
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_IP_LOCAL_OUT) |
61 (1 << NF_IP_FORWARD) |
62 (1 << NF_IP_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);