[NETFILTER]: fix compat_nf_sockopt typo
[linux-2.6] / net / netfilter / xt_NFLOG.c
1 /*
2  * Copyright (c) 2006 Patrick McHardy <kaber@trash.net>
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  */
8
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/skbuff.h>
12
13 #include <linux/netfilter/x_tables.h>
14 #include <linux/netfilter/xt_NFLOG.h>
15
16 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
17 MODULE_DESCRIPTION("x_tables NFLOG target");
18 MODULE_LICENSE("GPL");
19 MODULE_ALIAS("ipt_NFLOG");
20 MODULE_ALIAS("ip6t_NFLOG");
21
22 static unsigned int
23 nflog_target(struct sk_buff *skb,
24              const struct net_device *in, const struct net_device *out,
25              unsigned int hooknum, const struct xt_target *target,
26              const void *targinfo)
27 {
28         const struct xt_nflog_info *info = targinfo;
29         struct nf_loginfo li;
30
31         li.type              = NF_LOG_TYPE_ULOG;
32         li.u.ulog.copy_len   = info->len;
33         li.u.ulog.group      = info->group;
34         li.u.ulog.qthreshold = info->threshold;
35
36         nf_log_packet(target->family, hooknum, skb, in, out, &li,
37                       "%s", info->prefix);
38         return XT_CONTINUE;
39 }
40
41 static bool
42 nflog_checkentry(const char *tablename, const void *entry,
43                  const struct xt_target *target, void *targetinfo,
44                  unsigned int hookmask)
45 {
46         const struct xt_nflog_info *info = targetinfo;
47
48         if (info->flags & ~XT_NFLOG_MASK)
49                 return false;
50         if (info->prefix[sizeof(info->prefix) - 1] != '\0')
51                 return false;
52         return true;
53 }
54
55 static struct xt_target xt_nflog_target[] __read_mostly = {
56         {
57                 .name           = "NFLOG",
58                 .family         = AF_INET,
59                 .checkentry     = nflog_checkentry,
60                 .target         = nflog_target,
61                 .targetsize     = sizeof(struct xt_nflog_info),
62                 .me             = THIS_MODULE,
63         },
64         {
65                 .name           = "NFLOG",
66                 .family         = AF_INET6,
67                 .checkentry     = nflog_checkentry,
68                 .target         = nflog_target,
69                 .targetsize     = sizeof(struct xt_nflog_info),
70                 .me             = THIS_MODULE,
71         },
72 };
73
74 static int __init xt_nflog_init(void)
75 {
76         return xt_register_targets(xt_nflog_target,
77                                    ARRAY_SIZE(xt_nflog_target));
78 }
79
80 static void __exit xt_nflog_fini(void)
81 {
82         xt_unregister_targets(xt_nflog_target, ARRAY_SIZE(xt_nflog_target));
83 }
84
85 module_init(xt_nflog_init);
86 module_exit(xt_nflog_fini);