cfg80211: add event for unexpected 4addr frames

The frames are used by AP/STA WDS mode, and hostapd
needs to know when such a frame was received to set
up the VLAN appropriately to allow using it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index f4d868b1e11c..34891e08c54a 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1123,3 +1123,17 @@ bool cfg80211_rx_spurious_frame(struct net_device *dev,
         return nl80211_unexpected_frame(dev, addr, gfp);
 }
 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
+
+bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
+                                        const u8 *addr, gfp_t gfp)
+{
+        struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+        if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
+                    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
+                    wdev->iftype != NL80211_IFTYPE_AP_VLAN))
+                return false;
+
+        return nl80211_unexpected_4addr_frame(dev, addr, gfp);
+}
+EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);