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[14/15] mac80211: ignore frames between TDLS peers when operating as AP

Message ID 1405606471-30128-15-git-send-email-arik@wizery.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Arik Nemtsov July 17, 2014, 2:14 p.m. UTC 
If the AP receives actions frames destined for other peers, it may
mistakenly toggle BA-sessions from itself to a peer.
Ignore TDLS data packets as well - the AP should not handle them.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 net/mac80211/rx.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox

Patch

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 5f572be..5a786d4 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3129,6 +3129,14 @@  static bool prepare_for_handlers(struct ieee80211_rx_data *rx,
 			if (!ieee80211_is_beacon(hdr->frame_control))
 				return false;
 			status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
+		} else if (!ieee80211_has_tods(hdr->frame_control)) {
+			/* ignore data frames to TDLS-peers */
+			if (ieee80211_is_data(hdr->frame_control))
+				return false;
+			/* ignore action frames to TDLS-peers */
+			if (ieee80211_is_action(hdr->frame_control) &&
+			    !ether_addr_equal(bssid, hdr->addr1))
+				return false;
 		}
 		break;
 	case NL80211_IFTYPE_WDS: