| /* iptables module for using new netfilter netlink queue |
| * |
| * (C) 2005 by Harald Welte <laforge@netfilter.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/skbuff.h> |
| |
| #include <linux/netfilter.h> |
| #include <linux/netfilter_ipv4/ip_tables.h> |
| #include <linux/netfilter_ipv4/ipt_NFQUEUE.h> |
| |
| MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>"); |
| MODULE_DESCRIPTION("iptables NFQUEUE target"); |
| MODULE_LICENSE("GPL"); |
| |
| static unsigned int |
| target(struct sk_buff **pskb, |
| const struct net_device *in, |
| const struct net_device *out, |
| unsigned int hooknum, |
| const void *targinfo, |
| void *userinfo) |
| { |
| const struct ipt_NFQ_info *tinfo = targinfo; |
| |
| return NF_QUEUE_NR(tinfo->queuenum); |
| } |
| |
| static int |
| checkentry(const char *tablename, |
| const struct ipt_entry *e, |
| void *targinfo, |
| unsigned int targinfosize, |
| unsigned int hook_mask) |
| { |
| if (targinfosize != IPT_ALIGN(sizeof(struct ipt_NFQ_info))) { |
| printk(KERN_WARNING "NFQUEUE: targinfosize %u != %Zu\n", |
| targinfosize, |
| IPT_ALIGN(sizeof(struct ipt_NFQ_info))); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static struct ipt_target ipt_NFQ_reg = { |
| .name = "NFQUEUE", |
| .target = target, |
| .checkentry = checkentry, |
| .me = THIS_MODULE, |
| }; |
| |
| static int __init init(void) |
| { |
| return ipt_register_target(&ipt_NFQ_reg); |
| } |
| |
| static void __exit fini(void) |
| { |
| ipt_unregister_target(&ipt_NFQ_reg); |
| } |
| |
| module_init(init); |
| module_exit(fini); |