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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 <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-05-11 14:43:13 +02:00 committed by John W. Linville
parent 528769cf1e
commit e80cf8537a
1 changed files with 12 additions and 0 deletions
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12
net/wireless/nl80211.c
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@ -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, &params.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;