From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ding Tianhong Subject: [PATCH net RESEND] bonding: add ip checks when store ip target Date: Wed, 13 Nov 2013 10:19:02 +0800 Message-ID: <5282E196.8030401@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: Jay Vosburgh , Andy Gospodarek , "David S. Miller" , Nikolay Aleksandrov , Veaceslav Falico , Netdev Return-path: Received: from szxga02-in.huawei.com ([119.145.14.65]:63812 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755737Ab3KMCVM (ORCPT ); Tue, 12 Nov 2013 21:21:12 -0500 Sender: netdev-owner@vger.kernel.org List-ID: I met a Bug when I add ip target with the wrong ip address: echo +500.500.500.500 > /sys/class/net/bond0/bonding/arp_ip_target the wrong ip address will transfor to 245.245.245.244 and add to the ip target success, it is uncorrect, so I add checks to avoid adding wrong address. The in4_pton() will set wrong ip address to 0.0.0.0, it will return by the next check and will not add to ip target. Signed-off-by: Ding Tianhong --- drivers/net/bonding/bond_sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index ec9b646..e0c97fb 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -653,7 +653,7 @@ static ssize_t bonding_store_arp_targets(struct device *d, int ind, i, j, ret = -EINVAL; targets = bond->params.arp_targets; - newtarget = in_aton(buf + 1); + in4_pton(buf + 1, strlen(buf) - 1, (u8 *)&newtarget, -1, NULL); /* look for adds */ if (buf[0] == '+') { if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { -- 1.8.0