mac80211: add a number of pending fixes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r48883

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@48884 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 35 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/338-mac80211-Fix-Public-Action-frame-RX-in-AP-mode.patch b/package/kernel/mac80211/patches/338-mac80211-Fix-Public-Action-frame-RX-in-AP-mode.patch
new file mode 100644
index 0000000000..56cd94aa15
--- /dev/null
+++ b/package/kernel/mac80211/patches/338-mac80211-Fix-Public-Action-frame-RX-in-AP-mode.patch
@@ -0,0 +1,35 @@
+From: Jouni Malinen <jouni@qca.qualcomm.com>
+Date: Tue, 1 Mar 2016 00:29:00 +0200
+Subject: [PATCH] mac80211: Fix Public Action frame RX in AP mode
+
+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 <jouni@qca.qualcomm.com>
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -3374,6 +3374,7 @@ static bool ieee80211_accept_frame(struc
+ 				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;
+ 		}