diff options
| author | Alexander Wetzel <alexander@wetzel-home.de> | 2020-08-04 18:41:51 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-08-17 13:22:43 +0300 |
| commit | 4bad3a2041b5391678834f2611cbf7b7c66ca8f7 (patch) | |
| tree | 16340dd48012ed57db84f41dff4836a9ac6eaeb6 | |
| parent | 54f9ab7b870934b70e5a21786d951fbcf663970f (diff) | |
| download | linux-4bad3a2041b5391678834f2611cbf7b7c66ca8f7.tar.bz2 | |
ath9k: add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support
The ath9k driver was so far only able to rekey PTK0 keys correctly due
to the best effort queue flush added with commit 62872a9b9a10
("mac80211: Fix PTK rekey freezes and clear text leak").
Add the needed queue flush and set NL80211_EXT_FEATURE_CAN_REPLACE_PTK0
to tell mac80211 that the driver can now rekey PTK0 keys correctly and
no longer needs the best effort flush.
Effectively this prevents mac80211 to warn when rekeying a PTK0 key
only.
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200804164152.175375-1-alexander@wetzel-home.de
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 289a2444d534..ea1d17a265a7 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -1014,6 +1014,7 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_AIRTIME_FAIRNESS); wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS); + wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); } int ath9k_init_device(u16 devid, struct ath_softc *sc, diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 0ea3b80f664c..411eece01bb1 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -19,6 +19,9 @@ #include "ath9k.h" #include "btcoex.h" +static void ath9k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u32 queues, bool drop); + u8 ath9k_parse_mpdudensity(u8 mpdudensity) { /* @@ -1701,6 +1704,15 @@ static int ath9k_set_key(struct ieee80211_hw *hw, return -EOPNOTSUPP; } + /* There may be MPDUs queued for the outgoing PTK key. Flush queues to + * make sure these are not send unencrypted or with a wrong (new) key + */ + if (cmd == DISABLE_KEY && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { + ieee80211_stop_queues(hw); + ath9k_flush(hw, vif, 0, true); + ieee80211_wake_queues(hw); + } + mutex_lock(&sc->mutex); ath9k_ps_wakeup(sc); ath_dbg(common, CONFIG, "Set HW Key %d\n", cmd); |