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Do not propagate bad scan results to siblings sharing the radio

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This decreases useless work and re-scans by siblings when a
device gets a scan failure.

Signed-off-by: Ben Greear <greearb@candelatech.com>
This commit is contained in:
Ben Greear 2011-02-16 18:55:37 +02:00 committed by Jouni Malinen
parent 6603a96602
commit e1504976f1
1 changed files with 20 additions and 12 deletions
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32
wpa_supplicant/events.c
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@ -837,9 +837,9 @@ static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
return 1;
}
static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
/* Return < 0 if no scan results could be fetched. */
static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
union wpa_event_data *data)
{
struct wpa_bss *selected;
struct wpa_ssid *ssid = NULL;
@ -858,11 +858,11 @@ static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
NULL, 1);
if (scan_res == NULL) {
if (wpa_s->conf->ap_scan == 2 || ap)
return;
return -1;
wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
"scanning again");
wpa_supplicant_req_new_scan(wpa_s, 1, 0);
return;
return -1;
}
#ifndef CONFIG_NO_RANDOM_POOL
@ -891,13 +891,13 @@ static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
scan_res_handler(wpa_s, scan_res);
wpa_scan_results_free(scan_res);
return;
return 0;
}
if (ap) {
wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
wpa_scan_results_free(scan_res);
return;
return 0;
}
wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
@ -908,18 +908,18 @@ static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
wpa_scan_results_free(scan_res);
return;
return 0;
}
if (wpa_s->disconnected) {
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
wpa_scan_results_free(scan_res);
return;
return 0;
}
if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
wpa_scan_results_free(scan_res);
return;
return 0;
}
wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
@ -932,7 +932,7 @@ static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
scan_res);
wpa_scan_results_free(scan_res);
if (skip)
return;
return 0;
wpa_supplicant_connect(wpa_s, selected, ssid);
} else {
wpa_scan_results_free(scan_res);
@ -958,6 +958,7 @@ static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
timeout_usec);
}
}
return 0;
}
@ -967,7 +968,14 @@ static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
const char *rn, *rn2;
struct wpa_supplicant *ifs;
_wpa_supplicant_event_scan_results(wpa_s, data);
if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
/*
* If no scan results could be fetched, then no need to
* notify those interfaces that did not actually request
* this scan.
*/
return;
}
/*
* Check other interfaces to see if they have the same radio-name. If