[v2,03/12] mac80211: Don't destroy auth data in case of anti-clogging
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Message ID iwlwifi.20200326150855.7483996157a8.I8040a842874aaf6d209df3fc8a2acb97a0bf508b@changeid
State Accepted
Delegated to: Johannes Berg
Headers show
Series
  • cfg80211/mac80211 patches from our internal tree 2020-03-26-2
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Commit Message

Luca Coelho March 26, 2020, 1:09 p.m. UTC
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>

SAE AP may reject authentication with WLAN_STATUS_ANTI_CLOG_REQUIRED.
As the user space will immediately continue the authentication flow,
there is no need to destroy the authentication data in this case.
This saves unneeded station removal and releasing the channel.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 net/mac80211/mlme.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index f1f518790c12..a0de21a51f65 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2948,10 +2948,15 @@  static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
+		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+
+		if (auth_alg == WLAN_AUTH_SAE &&
+		    status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED)
+			return;
+
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_auth_data(sdata, false);
-		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 		event.u.mlme.status = MLME_DENIED;
 		event.u.mlme.reason = status_code;
 		drv_event_callback(sdata->local, sdata, &event);