PNO: Move and rename pno_start()/pno_stop()

[mech_eap.git] / wpa_supplicant / scan.c

diff --git a/wpa_supplicant/scan.c b/wpa_supplicant/scan.c
index f7eb537..d44e449 100644 (file)
--- a/wpa_supplicant/scan.c
+++ b/wpa_supplicant/scan.c
@@ -1813,3 +1813,104 @@ void wpa_scan_free_params(struct wpa_driver_scan_params *params)
        os_free(params->filter_ssids);
        os_free(params);
 }
+
+
+int wpas_start_pno(struct wpa_supplicant *wpa_s)
+{
+       int ret, interval;
+       size_t i, num_ssid;
+       struct wpa_ssid *ssid;
+       struct wpa_driver_scan_params params;
+
+       if (wpa_s->pno || wpa_s->pno_sched_pending)
+               return 0;
+
+       if ((wpa_s->wpa_state > WPA_SCANNING) &&
+           (wpa_s->wpa_state <= WPA_COMPLETED)) {
+               wpa_printf(MSG_ERROR, "PNO: In assoc process");
+               return -EAGAIN;
+       }
+
+       if (wpa_s->wpa_state == WPA_SCANNING) {
+               wpa_supplicant_cancel_scan(wpa_s);
+               if (wpa_s->sched_scanning) {
+                       wpa_printf(MSG_DEBUG, "Schedule PNO on completion of "
+                                  "ongoing sched scan");
+                       wpa_supplicant_cancel_sched_scan(wpa_s);
+                       wpa_s->pno_sched_pending = 1;
+                       return 0;
+               }
+       }
+
+       os_memset(&params, 0, sizeof(params));
+
+       num_ssid = 0;
+       ssid = wpa_s->conf->ssid;
+       while (ssid) {
+               if (!wpas_network_disabled(wpa_s, ssid))
+                       num_ssid++;
+               ssid = ssid->next;
+       }
+       if (num_ssid > WPAS_MAX_SCAN_SSIDS) {
+               wpa_printf(MSG_DEBUG, "PNO: Use only the first %u SSIDs from "
+                          "%u", WPAS_MAX_SCAN_SSIDS, (unsigned int) num_ssid);
+               num_ssid = WPAS_MAX_SCAN_SSIDS;
+       }
+
+       if (num_ssid == 0) {
+               wpa_printf(MSG_DEBUG, "PNO: No configured SSIDs");
+               return -1;
+       }
+
+       params.filter_ssids = os_malloc(sizeof(struct wpa_driver_scan_filter) *
+                                       num_ssid);
+       if (params.filter_ssids == NULL)
+               return -1;
+       i = 0;
+       ssid = wpa_s->conf->ssid;
+       while (ssid) {
+               if (!wpas_network_disabled(wpa_s, ssid)) {
+                       params.ssids[i].ssid = ssid->ssid;
+                       params.ssids[i].ssid_len = ssid->ssid_len;
+                       params.num_ssids++;
+                       os_memcpy(params.filter_ssids[i].ssid, ssid->ssid,
+                                 ssid->ssid_len);
+                       params.filter_ssids[i].ssid_len = ssid->ssid_len;
+                       params.num_filter_ssids++;
+                       i++;
+                       if (i == num_ssid)
+                               break;
+               }
+               ssid = ssid->next;
+       }
+
+       if (wpa_s->conf->filter_rssi)
+               params.filter_rssi = wpa_s->conf->filter_rssi;
+
+       interval = wpa_s->conf->sched_scan_interval ?
+               wpa_s->conf->sched_scan_interval : 10;
+
+       ret = wpa_supplicant_start_sched_scan(wpa_s, &params, interval);
+       os_free(params.filter_ssids);
+       if (ret == 0)
+               wpa_s->pno = 1;
+       return ret;
+}
+
+
+int wpas_stop_pno(struct wpa_supplicant *wpa_s)
+{
+       int ret = 0;
+
+       if (wpa_s->pno || wpa_s->sched_scanning) {
+               wpa_s->pno = 0;
+               ret = wpa_supplicant_stop_sched_scan(wpa_s);
+       }
+
+       wpa_s->pno_sched_pending = 0;
+
+       if (wpa_s->wpa_state == WPA_SCANNING)
+               wpa_supplicant_req_scan(wpa_s, 0, 0);
+
+       return ret;
+}