Add linux-next specific files for 20110421
[linux-2.6/next.git] / net / netfilter / xt_NFLOG.c
bloba17dd0f589b22d3ffce573177414c4afa0790c1d
1 /*
2 * Copyright (c) 2006 Patrick McHardy <kaber@trash.net>
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 */
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/skbuff.h>
13 #include <linux/netfilter/x_tables.h>
14 #include <linux/netfilter/xt_NFLOG.h>
15 #include <net/netfilter/nf_log.h>
16 #include <net/netfilter/nfnetlink_log.h>
18 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
19 MODULE_DESCRIPTION("Xtables: packet logging to netlink using NFLOG");
20 MODULE_LICENSE("GPL");
21 MODULE_ALIAS("ipt_NFLOG");
22 MODULE_ALIAS("ip6t_NFLOG");
24 static unsigned int
25 nflog_tg(struct sk_buff *skb, const struct xt_action_param *par)
27 const struct xt_nflog_info *info = par->targinfo;
28 struct nf_loginfo li;
30 li.type = NF_LOG_TYPE_ULOG;
31 li.u.ulog.copy_len = info->len;
32 li.u.ulog.group = info->group;
33 li.u.ulog.qthreshold = info->threshold;
35 nfulnl_log_packet(par->family, par->hooknum, skb, par->in,
36 par->out, &li, info->prefix);
37 return XT_CONTINUE;
40 static int nflog_tg_check(const struct xt_tgchk_param *par)
42 const struct xt_nflog_info *info = par->targinfo;
44 if (info->flags & ~XT_NFLOG_MASK)
45 return -EINVAL;
46 if (info->prefix[sizeof(info->prefix) - 1] != '\0')
47 return -EINVAL;
48 return 0;
51 static struct xt_target nflog_tg_reg __read_mostly = {
52 .name = "NFLOG",
53 .revision = 0,
54 .family = NFPROTO_UNSPEC,
55 .checkentry = nflog_tg_check,
56 .target = nflog_tg,
57 .targetsize = sizeof(struct xt_nflog_info),
58 .me = THIS_MODULE,
61 static int __init nflog_tg_init(void)
63 return xt_register_target(&nflog_tg_reg);
66 static void __exit nflog_tg_exit(void)
68 xt_unregister_target(&nflog_tg_reg);
71 module_init(nflog_tg_init);
72 module_exit(nflog_tg_exit);