netfilter: Combine ipt_ttl and ip6t_hl source

[linux-drm-fsl-dcu.git] / net / ipv4 / netfilter / ipt_ttl.c

diff --git a/net/ipv4/netfilter/ipt_ttl.c b/net/ipv4/netfilter/ipt_ttl.c
deleted file mode 100644 (file)
index 297f1cb..0000000
--- a/net/ipv4/netfilter/ipt_ttl.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* IP tables module for matching the value of the TTL
- *
- * (C) 2000,2001 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/ip.h>
-#include <linux/module.h>
-#include <linux/skbuff.h>
-
-#include <linux/netfilter_ipv4/ipt_ttl.h>
-#include <linux/netfilter/x_tables.h>
-
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("Xtables: IPv4 TTL field match");
-MODULE_LICENSE("GPL");
-
-static bool ttl_mt(const struct sk_buff *skb, const struct xt_match_param *par)
-{
-       const struct ipt_ttl_info *info = par->matchinfo;
-       const u8 ttl = ip_hdr(skb)->ttl;
-
-       switch (info->mode) {
-               case IPT_TTL_EQ:
-                       return ttl == info->ttl;
-               case IPT_TTL_NE:
-                       return ttl != info->ttl;
-               case IPT_TTL_LT:
-                       return ttl < info->ttl;
-               case IPT_TTL_GT:
-                       return ttl > info->ttl;
-               default:
-                       printk(KERN_WARNING "ipt_ttl: unknown mode %d\n",
-                               info->mode);
-                       return false;
-       }
-
-       return false;
-}
-
-static struct xt_match ttl_mt_reg __read_mostly = {
-       .name           = "ttl",
-       .family         = NFPROTO_IPV4,
-       .match          = ttl_mt,
-       .matchsize      = sizeof(struct ipt_ttl_info),
-       .me             = THIS_MODULE,
-};
-
-static int __init ttl_mt_init(void)
-{
-       return xt_register_match(&ttl_mt_reg);
-}
-
-static void __exit ttl_mt_exit(void)
-{
-       xt_unregister_match(&ttl_mt_reg);
-}
-
-module_init(ttl_mt_init);
-module_exit(ttl_mt_exit);