-/* IP tables module for matching the value of the TTL
+/* IP tables module for matching the value of the TTL
*
* ipt_ttl.c,v 1.5 2000/11/13 11:16:08 laforge Exp
*
* published by the Free Software Foundation.
*/
+#include <linux/ip.h>
#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/netfilter_ipv4/ipt_ttl.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter/x_tables.h>
MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
MODULE_DESCRIPTION("IP tables TTL matching module");
MODULE_LICENSE("GPL");
-static int match(const struct sk_buff *skb, const struct net_device *in,
- const struct net_device *out, const void *matchinfo,
+static int match(const struct sk_buff *skb,
+ const struct net_device *in, const struct net_device *out,
+ const struct xt_match *match, const void *matchinfo,
int offset, unsigned int protoff, int *hotdrop)
{
const struct ipt_ttl_info *info = matchinfo;
return (skb->nh.iph->ttl > info->ttl);
break;
default:
- printk(KERN_WARNING "ipt_ttl: unknown mode %d\n",
+ printk(KERN_WARNING "ipt_ttl: unknown mode %d\n",
info->mode);
return 0;
}
return 0;
}
-static int checkentry(const char *tablename, const void *ip,
- void *matchinfo, unsigned int matchsize,
- unsigned int hook_mask)
-{
- if (matchsize != IPT_ALIGN(sizeof(struct ipt_ttl_info)))
- return 0;
-
- return 1;
-}
-
-static struct ipt_match ttl_match = {
+static struct xt_match ttl_match = {
.name = "ttl",
- .match = &match,
- .checkentry = &checkentry,
+ .family = AF_INET,
+ .match = match,
+ .matchsize = sizeof(struct ipt_ttl_info),
.me = THIS_MODULE,
};
-static int __init init(void)
+static int __init ipt_ttl_init(void)
{
- return ipt_register_match(&ttl_match);
+ return xt_register_match(&ttl_match);
}
-static void __exit fini(void)
+static void __exit ipt_ttl_fini(void)
{
- ipt_unregister_match(&ttl_match);
-
+ xt_unregister_match(&ttl_match);
}
-module_init(init);
-module_exit(fini);
+module_init(ipt_ttl_init);
+module_exit(ipt_ttl_fini);