From 7ce08a0c9992da8986b06154a768646e41012469 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Tue, 1 Mar 2016 00:29:00 +0200 Subject: mac80211: Fix Public Action frame RX in AP mode [ Upstream commit 1ec7bae8bec9b72e347e01330c745ab5cdd66f0e ] Public Action frames use special rules for how the BSSID field (Address 3) is set. A wildcard BSSID is used in cases where the transmitter and recipient are not members of the same BSS. As such, we need to accept Public Action frames with wildcard BSSID. Commit db8e17324553 ("mac80211: ignore frames between TDLS peers when operating as AP") added a rule that drops Action frames to TDLS-peers based on an Action frame having different DA (Address 1) and BSSID (Address 3) values. This is not correct since it misses the possibility of BSSID being a wildcard BSSID in which case the Address 1 would not necessarily match. Fix this by allowing mac80211 to accept wildcard BSSID in an Action frame when in AP mode. Fixes: db8e17324553 ("mac80211: ignore frames between TDLS peers when operating as AP") Cc: stable@vger.kernel.org Signed-off-by: Jouni Malinen Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- net/mac80211/rx.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/mac80211') diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 3244a0074d60..d4b08d87537c 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3377,6 +3377,7 @@ static bool prepare_for_handlers(struct ieee80211_rx_data *rx, return false; /* ignore action frames to TDLS-peers */ if (ieee80211_is_action(hdr->frame_control) && + !is_broadcast_ether_addr(bssid) && !ether_addr_equal(bssid, hdr->addr1)) return false; } -- cgit v1.2.3