From: Johannes Berg Date: Mon, 11 May 2009 12:43:13 +0000 (+0200) Subject: cfg80211: disallow interfering with stations on non-AP X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e80cf8537ae54ec96c389055d6e9b0ef630c042d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git cfg80211: disallow interfering with stations on non-AP 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 Signed-off-by: John W. Linville --- diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 79927706937a..a39e4644778b 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1746,6 +1746,12 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) if (err) goto out_rtnl; + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { + err = -EINVAL; + goto out; + } + err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); if (err) goto out; @@ -1789,6 +1795,12 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) if (err) goto out_rtnl; + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && + dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { + err = -EINVAL; + goto out; + } + if (!drv->ops->del_station) { err = -EOPNOTSUPP; goto out;