1 files changed, 52 insertions, 87 deletions

diff --git a/net/netfilter/xt_mark.c b/net/netfilter/xt_mark.c
index dfa1ee6914c..23345238711 100644
--- a/net/netfilter/xt_mark.c
+++ b/net/netfilter/xt_mark.c
@@ -1,10 +1,13 @@
-/* Kernel module to match NFMARK values. */
-
-/* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
+/*
+ *	xt_mark - Netfilter module to match NFMARK value
+ *
+ *	(C) 1999-2001 Marc Boucher <marc@mbsi.ca>
+ *	Copyright © CC Computer Consultants GmbH, 2007 - 2008
+ *	Jan Engelhardt <jengelh@medozas.de>
  *
- * 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.
+ *	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>
@@ -15,105 +18,67 @@
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
-MODULE_DESCRIPTION("iptables mark matching module");
+MODULE_DESCRIPTION("Xtables: packet mark operations");
 MODULE_ALIAS("ipt_mark");
 MODULE_ALIAS("ip6t_mark");
+MODULE_ALIAS("ipt_MARK");
+MODULE_ALIAS("ip6t_MARK");
 
-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)
+static unsigned int
+mark_tg(struct sk_buff *skb, const struct xt_action_param *par)
 {
-	const struct xt_mark_info *info = matchinfo;
+	const struct xt_mark_tginfo2 *info = par->targinfo;
 
-	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
+	skb->mark = (skb->mark & ~info->mask) ^ info->mark;
+	return XT_CONTINUE;
 }
 
-static int
-checkentry(const char *tablename,
-           const void *entry,
-	   const struct xt_match *match,
-           void *matchinfo,
-           unsigned int hook_mask)
+static bool
+mark_mt(const struct sk_buff *skb, struct xt_action_param *par)
 {
-	const struct xt_mark_info *minfo = matchinfo;
+	const struct xt_mark_mtinfo1 *info = par->matchinfo;
 
-	if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
-		printk(KERN_WARNING "mark: only supports 32bit mark\n");
-		return 0;
-	}
-	return 1;
+	return ((skb->mark & info->mask) == info->mark) ^ info->invert;
 }
 
-#ifdef CONFIG_COMPAT
-struct compat_xt_mark_info {
-	compat_ulong_t	mark, mask;
-	u_int8_t	invert;
-	u_int8_t	__pad1;
-	u_int16_t	__pad2;
+static struct xt_target mark_tg_reg __read_mostly = {
+	.name           = "MARK",
+	.revision       = 2,
+	.family         = NFPROTO_UNSPEC,
+	.target         = mark_tg,
+	.targetsize     = sizeof(struct xt_mark_tginfo2),
+	.me             = THIS_MODULE,
 };
 
-static void compat_from_user(void *dst, void *src)
-{
-	struct compat_xt_mark_info *cm = src;
-	struct xt_mark_info m = {
-		.mark	= cm->mark,
-		.mask	= cm->mask,
-		.invert	= cm->invert,
-	};
-	memcpy(dst, &m, sizeof(m));
-}
-
-static int compat_to_user(void __user *dst, void *src)
-{
-	struct xt_mark_info *m = src;
-	struct compat_xt_mark_info cm = {
-		.mark	= m->mark,
-		.mask	= m->mask,
-		.invert	= m->invert,
-	};
-	return copy_to_user(dst, &cm, sizeof(cm)) ? -EFAULT : 0;
-}
-#endif /* CONFIG_COMPAT */
-
-static struct xt_match xt_mark_match[] = {
-	{
-		.name		= "mark",
-		.family		= AF_INET,
-		.checkentry	= checkentry,
-		.match		= match,
-		.matchsize	= sizeof(struct xt_mark_info),
-#ifdef CONFIG_COMPAT
-		.compatsize	= sizeof(struct compat_xt_mark_info),
-		.compat_from_user = compat_from_user,
-		.compat_to_user	= compat_to_user,
-#endif
-		.me		= THIS_MODULE,
-	},
-	{
-		.name		= "mark",
-		.family		= AF_INET6,
-		.checkentry	= checkentry,
-		.match		= match,
-		.matchsize	= sizeof(struct xt_mark_info),
-		.me		= THIS_MODULE,
-	},
+static struct xt_match mark_mt_reg __read_mostly = {
+	.name           = "mark",
+	.revision       = 1,
+	.family         = NFPROTO_UNSPEC,
+	.match          = mark_mt,
+	.matchsize      = sizeof(struct xt_mark_mtinfo1),
+	.me             = THIS_MODULE,
 };
 
-static int __init xt_mark_init(void)
+static int __init mark_mt_init(void)
 {
-	return xt_register_matches(xt_mark_match, ARRAY_SIZE(xt_mark_match));
+	int ret;
+
+	ret = xt_register_target(&mark_tg_reg);
+	if (ret < 0)
+		return ret;
+	ret = xt_register_match(&mark_mt_reg);
+	if (ret < 0) {
+		xt_unregister_target(&mark_tg_reg);
+		return ret;
+	}
+	return 0;
 }
 
-static void __exit xt_mark_fini(void)
+static void __exit mark_mt_exit(void)
 {
-	xt_unregister_matches(xt_mark_match, ARRAY_SIZE(xt_mark_match));
+	xt_unregister_match(&mark_mt_reg);
+	xt_unregister_target(&mark_tg_reg);
 }
 
-module_init(xt_mark_init);
-module_exit(xt_mark_fini);
+module_init(mark_mt_init);
+module_exit(mark_mt_exit);