[NETFILTER]: Replace sk_buff ** with sk_buff *
[linux-2.6.git] / net / netfilter / xt_CLASSIFY.c
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
23 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
24 MODULE_LICENSE("GPL");
25 MODULE_DESCRIPTION("iptables qdisc classification target module");
26 MODULE_ALIAS("ipt_CLASSIFY");
27 MODULE_ALIAS("ip6t_CLASSIFY");
28
29 static unsigned int
30 target(struct sk_buff *skb,
31        const struct net_device *in,
32        const struct net_device *out,
33        unsigned int hooknum,
34        const struct xt_target *target,
35        const void *targinfo)
36 {
37         const struct xt_classify_target_info *clinfo = targinfo;
38
39         skb->priority = clinfo->priority;
40         return XT_CONTINUE;
41 }
42
43 static struct xt_target xt_classify_target[] __read_mostly = {
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_IP6_LOCAL_OUT) |
62                                   (1 << NF_IP6_FORWARD) |
63                                   (1 << NF_IP6_POST_ROUTING),
64                 .me             = THIS_MODULE,
65         },
66 };
67
68 static int __init xt_classify_init(void)
69 {
70         return xt_register_targets(xt_classify_target,
71                                    ARRAY_SIZE(xt_classify_target));
72 }
73
74 static void __exit xt_classify_fini(void)
75 {
76         xt_unregister_targets(xt_classify_target,
77                               ARRAY_SIZE(xt_classify_target));
78 }
79
80 module_init(xt_classify_init);
81 module_exit(xt_classify_fini);