Commit a4055e74 authored Mar 26, 2020 by Andrei Otcheretianski Committed by Johannes Berg Apr 24, 2020

mac80211: Don't destroy auth data in case of anti-clogging

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>
Link: https://lore.kernel.org/r/iwlwifi.20200326150855.7483996157a8.I8040a842874aaf6d209df3fc8a2acb97a0bf508b@changeid

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent d46b4ab8

net/mac80211/mlme.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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);