Thread (3 messages) flat view 3 messages, 2 authors, 2021-11-17
STALE1721d LANDED

Landed in mainline as 64bc3aa02ae7 on 2021-11-17.

[PATCH v2 2/2] ath11k: reset RSN/WPA present state for open BSS

From: Sven Eckelmann <sven@narfation.org>
Date: 2021-11-15 10:18:54
Also in: ath11k
Subsystem: atheros ath generic utilities, qualcomm atheros ath11k wireless driver, the rest · Maintainers: Jeff Johnson, Linus Torvalds

From: Karthikeyan Kathirvel <redacted>

The ath11k driver is caching the information about RSN/WPA IE in the
configured beacon template. The cached information is used during
associations to figure out whether 4-way PKT/2-way GTK peer flags need to
be set or not.

But the code never cleared the state when no such IE was found. This can
for example happen when moving from an WPA/RSN to an open setup. The
(seemingly connected) peer was then not able to communicate over the
link because the firmware assumed a different (encryption enabled) state
for the peer.

Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1

Fixes: 01e34233c645 ("ath11k: fix wmi peer flags in peer assoc command")
Cc: Venkateswara Naralasetty <redacted>
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Karthikeyan Kathirvel <redacted>
[sven@narfation.org: split into separate patches, clean up commit message]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
---
v2:
* add new patch to really fix the peer handling of the fw after PSK -> open
  switch

 drivers/net/wireless/ath/ath11k/mac.c | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index cdee7545e876..9ed7eb09bdb7 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -1137,11 +1137,15 @@ static int ath11k_mac_setup_bcn_tmpl(struct ath11k_vif *arvif)
 
 	if (cfg80211_find_ie(WLAN_EID_RSN, ies, (skb_tail_pointer(bcn) - ies)))
 		arvif->rsnie_present = true;
+	else
+		arvif->rsnie_present = false;
 
 	if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
 				    WLAN_OUI_TYPE_MICROSOFT_WPA,
 				    ies, (skb_tail_pointer(bcn) - ies)))
 		arvif->wpaie_present = true;
+	else
+		arvif->wpaie_present = false;
 
 	ret = ath11k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
 
-- 
2.30.2
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