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Restore wpa_s->scan_req if scan trigger fails

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If the driver rejects the scan request while handling an external
requested scan (e.g., SCAN command on ctrl_iface), wpa_s->scan_req gets
cleared in wpa_supplicant_scan(). This can results in issues when the
scheduled re-try of the scan in one seconds trigger another call to this
function. If ap_scan==2 mode is used, this would result in new
association attempt instead of a new scan. Avoid this by restoring value
of wpa_s->scan_req in case the scan trigger fails and a new scan attempt
is scheduled.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2012-10-30 12:27:05 +02:00 committed by Jouni Malinen
parent 340f1c48f7
commit 23270cd8f5
1 changed files with 2 additions and 0 deletions
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2
wpa_supplicant/scan.c
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@ -696,6 +696,8 @@ scan:
wpa_msg(wpa_s, MSG_WARNING, "Failed to initiate AP scan"); wpa_msg(wpa_s, MSG_WARNING, "Failed to initiate AP scan");
if (prev_state != wpa_s->wpa_state) if (prev_state != wpa_s->wpa_state)
wpa_supplicant_set_state(wpa_s, prev_state); wpa_supplicant_set_state(wpa_s, prev_state);
/* Restore scan_req since we will try to scan again */
wpa_s->scan_req = scan_req;
wpa_supplicant_req_scan(wpa_s, 1, 0); wpa_supplicant_req_scan(wpa_s, 1, 0);
} }
} }