From 18219d3f7d6a5bc43825a41e0763158efbdb80d3 Mon Sep 17 00:00:00 2001
From: Jan Engelhardt <jengelh@medozas.de>
Date: Wed, 8 Oct 2008 11:35:13 +0200
Subject: netfilter: ebtables: do centralized size checking

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/bridge/netfilter/ebt_ulog.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'net/bridge/netfilter/ebt_ulog.c')

diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 3b1678cd66f..bdd8a27bba9 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -36,6 +36,7 @@
 #include <linux/timer.h>
 #include <linux/netlink.h>
 #include <linux/netdevice.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_ulog.h>
 #include <net/netfilter/nf_log.h>
@@ -260,8 +261,7 @@ static int ebt_ulog_check(const char *tablename, unsigned int hookmask,
 {
 	struct ebt_ulog_info *uloginfo = data;
 
-	if (datalen != EBT_ALIGN(sizeof(struct ebt_ulog_info)) ||
-	    uloginfo->nlgroup > 31)
+	if (uloginfo->nlgroup > 31)
 		return -EINVAL;
 
 	uloginfo->prefix[EBT_ULOG_PREFIX_LEN - 1] = '\0';
@@ -276,6 +276,7 @@ static struct ebt_watcher ulog __read_mostly = {
 	.name		= EBT_ULOG_WATCHER,
 	.watcher	= ebt_ulog,
 	.check		= ebt_ulog_check,
+	.targetsize	= XT_ALIGN(sizeof(struct ebt_ulog_info)),
 	.me		= THIS_MODULE,
 };
 
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