nl80211: Abort an ongoing scan upon scan timeout indication
authorAyala Beker <ayala.beker@intel.com>
Mon, 29 Feb 2016 12:30:03 +0000 (14:30 +0200)
committerJouni Malinen <j@w1.fi>
Thu, 3 Mar 2016 15:10:26 +0000 (17:10 +0200)
Currently, when scan is stuck in the kernel/driver/fw,
the nl80211 driver tries to recover by faking a SCAN_RESULTS flow.
However, the scan is still stuck in the kernel/driver/fw.

To avoid that stuck request, abort it upon scan timeout.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
src/drivers/driver_nl80211_scan.c

index e430a2f..c089891 100644 (file)
@@ -96,12 +96,20 @@ static int nl80211_get_noise_for_scan_results(
 void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
 {
        struct wpa_driver_nl80211_data *drv = eloop_ctx;
+
+       wpa_printf(MSG_DEBUG, "nl80211: Scan timeout - try to abort it");
+       if (!wpa_driver_nl80211_abort_scan(drv->first_bss))
+               return;
+
+       wpa_printf(MSG_DEBUG, "nl80211: Failed to abort scan");
+
        if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
                wpa_driver_nl80211_set_mode(drv->first_bss,
                                            drv->ap_scan_as_station);
                drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
        }
-       wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
+
+       wpa_printf(MSG_DEBUG, "nl80211: Try to get scan results");
        wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
 }