[PATCH 2/6] wpa_supplicant: Clear ignore_next_local_deauth flag

[Ilan Peer]

From: Ayala Beker <ayala.beker at intel.com>

The de-authentication flow in wpa_driver_nl80211_deauthenticate() can
result in a locally generated de-authentication event. To avoid getting
this extra event ignore_next_local_deauth flag is set, and should be
cleared when the next local deauth event is received. However, it is not
cleared when the event shows up after the wpa_supplicant has started a
connection with a new AP, and as a result it might ignore future
deauth event from the driver.

Fix this by clearing the flag if the event is locally generated.

Signed-off-by: Ayala Beker <ayala.beker at intel.com>
---
 src/drivers/driver_nl80211_event.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c
index cfede2a..c5f24c1 100644
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -639,10 +639,21 @@ static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
 			 * Avoid issues with some roaming cases where
 			 * disconnection event for the old AP may show up after
 			 * we have started connection with the new AP.
+			 * In case of locally generated event clear
+			 * ignore_next_local_deauth as well, to avoid next local
+			 * deauth event be wrongly ignored.
 			 */
-			wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
-				   MAC2STR(bssid),
-				   MAC2STR(drv->auth_attempt_bssid));
+			if (!os_memcmp(mgmt->sa, drv->first_bss->addr,
+				       ETH_ALEN)) {
+				wpa_printf(MSG_DEBUG,
+					   "nl80211: Received a locally generated deauth event. Clear ignore_next_local_deauth flag");
+				drv->ignore_next_local_deauth = 0;
+			} else {
+				wpa_printf(MSG_DEBUG,
+					   "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
+					   MAC2STR(bssid),
+					   MAC2STR(drv->auth_attempt_bssid));
+			}
 			return;
 		}
 
-- 
1.9.1