Root/
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 | |
24 | MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); |
25 | MODULE_LICENSE("GPL"); |
26 | MODULE_DESCRIPTION("Xtables: Qdisc classification"); |
27 | MODULE_ALIAS("ipt_CLASSIFY"); |
28 | MODULE_ALIAS("ip6t_CLASSIFY"); |
29 | MODULE_ALIAS("arpt_CLASSIFY"); |
30 | |
31 | static unsigned int |
32 | classify_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 | |
40 | static 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 | |
62 | static int __init classify_tg_init(void) |
63 | { |
64 | return xt_register_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg)); |
65 | } |
66 | |
67 | static void __exit classify_tg_exit(void) |
68 | { |
69 | xt_unregister_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg)); |
70 | } |
71 | |
72 | module_init(classify_tg_init); |
73 | module_exit(classify_tg_exit); |
74 |
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