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.
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>
17 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
18 MODULE_DESCRIPTION("Xtables: packet logging to netlink using NFLOG");
19 MODULE_LICENSE("GPL");
20 MODULE_ALIAS("ipt_NFLOG");
21 MODULE_ALIAS("ip6t_NFLOG");
24 nflog_tg(struct sk_buff *skb, const struct net_device *in,
25 const struct net_device *out, unsigned int hooknum,
26 const struct xt_target *target, const void *targinfo)
28 const struct xt_nflog_info *info = targinfo;
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;
36 nf_log_packet(target->family, hooknum, skb, in, out, &li,
42 nflog_tg_check(const char *tablename, const void *entry,
43 const struct xt_target *target, void *targetinfo,
44 unsigned int hookmask)
46 const struct xt_nflog_info *info = targetinfo;
48 if (info->flags & ~XT_NFLOG_MASK)
50 if (info->prefix[sizeof(info->prefix) - 1] != '\0')
55 static struct xt_target nflog_tg_reg[] __read_mostly = {
59 .checkentry = nflog_tg_check,
61 .targetsize = sizeof(struct xt_nflog_info),
67 .checkentry = nflog_tg_check,
69 .targetsize = sizeof(struct xt_nflog_info),
74 static int __init nflog_tg_init(void)
76 return xt_register_targets(nflog_tg_reg, ARRAY_SIZE(nflog_tg_reg));
79 static void __exit nflog_tg_exit(void)
81 xt_unregister_targets(nflog_tg_reg, ARRAY_SIZE(nflog_tg_reg));
84 module_init(nflog_tg_init);
85 module_exit(nflog_tg_exit);