[NETFILTER]: x_tables: mark matches and targets __read_mostly
[linux-2.6.git] / net / netfilter / xt_NFQUEUE.c
1 /* iptables module for using new netfilter netlink queue
2  *
3  * (C) 2005 by Harald Welte <laforge@netfilter.org>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  */
10
11 #include <linux/module.h>
12 #include <linux/skbuff.h>
13
14 #include <linux/netfilter.h>
15 #include <linux/netfilter_arp.h>
16 #include <linux/netfilter/x_tables.h>
17 #include <linux/netfilter/xt_NFQUEUE.h>
18
19 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
20 MODULE_DESCRIPTION("[ip,ip6,arp]_tables NFQUEUE target");
21 MODULE_LICENSE("GPL");
22 MODULE_ALIAS("ipt_NFQUEUE");
23 MODULE_ALIAS("ip6t_NFQUEUE");
24 MODULE_ALIAS("arpt_NFQUEUE");
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,
31        const struct xt_target *target,
32        const void *targinfo)
33 {
34         const struct xt_NFQ_info *tinfo = targinfo;
35
36         return NF_QUEUE_NR(tinfo->queuenum);
37 }
38
39 static struct xt_target xt_nfqueue_target[] __read_mostly = {
40         {
41                 .name           = "NFQUEUE",
42                 .family         = AF_INET,
43                 .target         = target,
44                 .targetsize     = sizeof(struct xt_NFQ_info),
45                 .me             = THIS_MODULE,
46         },
47         {
48                 .name           = "NFQUEUE",
49                 .family         = AF_INET6,
50                 .target         = target,
51                 .targetsize     = sizeof(struct xt_NFQ_info),
52                 .me             = THIS_MODULE,
53         },
54         {
55                 .name           = "NFQUEUE",
56                 .family         = NF_ARP,
57                 .target         = target,
58                 .targetsize     = sizeof(struct xt_NFQ_info),
59                 .me             = THIS_MODULE,
60         },
61 };
62
63 static int __init xt_nfqueue_init(void)
64 {
65         return xt_register_targets(xt_nfqueue_target,
66                                    ARRAY_SIZE(xt_nfqueue_target));
67 }
68
69 static void __exit xt_nfqueue_fini(void)
70 {
71         xt_unregister_targets(xt_nfqueue_target, ARRAY_SIZE(xt_nfqueue_target));
72 }
73
74 module_init(xt_nfqueue_init);
75 module_exit(xt_nfqueue_fini);