From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:35740 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753527AbZEKMer (ORCPT ); Mon, 11 May 2009 08:34:47 -0400 Subject: [PATCH] cfg80211: disallow interfering with stations on non-AP From: Johannes Berg To: John Linville Cc: Jouni Malinen , linux-wireless Content-Type: text/plain Date: Mon, 11 May 2009 14:34:43 +0200 Message-Id: <1242045283.18637.1.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On non-AP interfaces userspace has no business interfering with the station management, this can confuse mac80211 (and other drivers probably wouldn't support it anyway). Allow adding and removing stations only on AP interfaces. Signed-off-by: Johannes Berg --- net/wireless/nl80211.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- wireless-testing.orig/net/wireless/nl80211.c 2009-05-11 14:30:25.000000000 +0200 +++ wireless-testing/net/wireless/nl80211.c 2009-05-11 14:32:34.000000000 +0200 @@ -1726,6 +1726,10 @@ static int nl80211_new_station(struct sk if (err) goto out_rtnl; + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) + return -EINVAL; + err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); if (err) goto out; @@ -1769,6 +1773,10 @@ static int nl80211_del_station(struct sk if (err) goto out_rtnl; + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) + return -EINVAL; + if (!drv->ops->del_station) { err = -EOPNOTSUPP; goto out;