jeltz/hostap
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Fix PNO restart flow

Browse source 
PNO is sometimes restarted due to changes in scan parameters
(e.g., selected network changed or MAC randomization being
 enabled/disabled). Restart is done by stopping PNO and immediately
starting it again. This may result in the SCHED_SCAN_STOPPED event being
received after the request for new PNO, which will make wpa_supplicant
believe PNO is not active although it is actually is. As a result, the
next request to start PNO will fail because PNO is active and should be
stopped first.

Fix this by deferring the request to start PNO until the
SCHED_SCAN_STOPPED event is received in case sched_scan is being
stopped.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
This commit is contained in:
Avraham Stern 2016-09-05 17:33:03 +03:00 committed by Jouni Malinen
parent 14f34a7303
commit 5ac8f8623d
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
wpa_supplicant/scan.c
View file

@ -2420,6 +2420,13 @@ int wpas_start_pno(struct wpa_supplicant *wpa_s)
} }
} }
if (wpa_s->sched_scan_stop_req) {
wpa_printf(MSG_DEBUG,
"Schedule PNO after previous sched scan has stopped");
wpa_s->pno_sched_pending = 1;
return 0;
}
os_memset(&params, 0, sizeof(params)); os_memset(&params, 0, sizeof(params));
num_ssid = num_match_ssid = 0; num_ssid = num_match_ssid = 0;