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35 lines
1.4 KiB
35 lines
1.4 KiB
From: Jouni Malinen <jouni@qca.qualcomm.com>
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Date: Tue, 1 Mar 2016 00:29:00 +0200
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Subject: [PATCH] mac80211: Fix Public Action frame RX in AP mode
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Public Action frames use special rules for how the BSSID field (Address
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3) is set. A wildcard BSSID is used in cases where the transmitter and
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recipient are not members of the same BSS. As such, we need to accept
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Public Action frames with wildcard BSSID.
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Commit db8e17324553 ("mac80211: ignore frames between TDLS peers when
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operating as AP") added a rule that drops Action frames to TDLS-peers
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based on an Action frame having different DA (Address 1) and BSSID
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(Address 3) values. This is not correct since it misses the possibility
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of BSSID being a wildcard BSSID in which case the Address 1 would not
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necessarily match.
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Fix this by allowing mac80211 to accept wildcard BSSID in an Action
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frame when in AP mode.
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Fixes: db8e17324553 ("mac80211: ignore frames between TDLS peers when operating as AP")
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Cc: stable@vger.kernel.org
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Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/net/mac80211/rx.c
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+++ b/net/mac80211/rx.c
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@@ -3374,6 +3374,7 @@ static bool ieee80211_accept_frame(struc
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return false;
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/* ignore action frames to TDLS-peers */
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if (ieee80211_is_action(hdr->frame_control) &&
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+ !is_broadcast_ether_addr(bssid) &&
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!ether_addr_equal(bssid, hdr->addr1))
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return false;
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}
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