Commit | Line | Data |
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1da177e4 LT |
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 | ||
2e4e6a17 HW |
18 | #include <linux/netfilter/x_tables.h> |
19 | #include <linux/netfilter/xt_CLASSIFY.h> | |
1da177e4 LT |
20 | |
21 | MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); | |
22 | MODULE_LICENSE("GPL"); | |
23 | MODULE_DESCRIPTION("iptables qdisc classification target module"); | |
2e4e6a17 | 24 | MODULE_ALIAS("ipt_CLASSIFY"); |
1da177e4 LT |
25 | |
26 | static unsigned int | |
27 | target(struct sk_buff **pskb, | |
28 | const struct net_device *in, | |
29 | const struct net_device *out, | |
30 | unsigned int hooknum, | |
c4986734 | 31 | const struct xt_target *target, |
1da177e4 LT |
32 | const void *targinfo, |
33 | void *userinfo) | |
34 | { | |
2e4e6a17 | 35 | const struct xt_classify_target_info *clinfo = targinfo; |
1da177e4 | 36 | |
2e4e6a17 | 37 | if ((*pskb)->priority != clinfo->priority) |
1da177e4 | 38 | (*pskb)->priority = clinfo->priority; |
1da177e4 | 39 | |
2e4e6a17 | 40 | return XT_CONTINUE; |
1da177e4 LT |
41 | } |
42 | ||
4470bbc7 PM |
43 | static struct xt_target xt_classify_target[] = { |
44 | { | |
45 | .family = AF_INET, | |
46 | .name = "CLASSIFY", | |
47 | .target = target, | |
48 | .targetsize = sizeof(struct xt_classify_target_info), | |
49 | .table = "mangle", | |
50 | .hooks = (1 << NF_IP_LOCAL_OUT) | | |
51 | (1 << NF_IP_FORWARD) | | |
52 | (1 << NF_IP_POST_ROUTING), | |
53 | .me = THIS_MODULE, | |
54 | }, | |
55 | { | |
56 | .name = "CLASSIFY", | |
57 | .family = AF_INET6, | |
58 | .target = target, | |
59 | .targetsize = sizeof(struct xt_classify_target_info), | |
60 | .table = "mangle", | |
61 | .hooks = (1 << NF_IP_LOCAL_OUT) | | |
62 | (1 << NF_IP_FORWARD) | | |
63 | (1 << NF_IP_POST_ROUTING), | |
64 | .me = THIS_MODULE, | |
65 | }, | |
2e4e6a17 | 66 | }; |
2e4e6a17 | 67 | |
65b4b4e8 | 68 | static int __init xt_classify_init(void) |
1da177e4 | 69 | { |
4470bbc7 PM |
70 | return xt_register_targets(xt_classify_target, |
71 | ARRAY_SIZE(xt_classify_target)); | |
1da177e4 LT |
72 | } |
73 | ||
65b4b4e8 | 74 | static void __exit xt_classify_fini(void) |
1da177e4 | 75 | { |
4470bbc7 PM |
76 | xt_unregister_targets(xt_classify_target, |
77 | ARRAY_SIZE(xt_classify_target)); | |
1da177e4 LT |
78 | } |
79 | ||
65b4b4e8 AM |
80 | module_init(xt_classify_init); |
81 | module_exit(xt_classify_fini); |