int wpa_supplicant_start_sched_scan(struct wpa_supplicant *wpa_s,
- struct wpa_driver_scan_params *params,
- int interval)
+ struct wpa_driver_scan_params *params)
{
int ret;
- struct sched_scan_plan scan_plan = {
- .interval = interval,
- .iterations = 0,
- };
-
- params->sched_scan_plans = &scan_plan;
- params->sched_scan_plans_num = 1;
wpa_supplicant_notify_scanning(wpa_s, 1);
ret = wpa_drv_sched_scan(wpa_s, params);
else
wpa_s->sched_scanning = 1;
- params->sched_scan_plans = NULL;
- params->sched_scan_plans_num = 0;
return ret;
}
unsigned int max_sched_scan_ssids;
int wildcard = 0;
int need_ssids;
+ struct sched_scan_plan scan_plan;
if (!wpa_s->sched_scan_supported)
return -1;
if (!ssid || !wpa_s->prev_sched_ssid) {
wpa_dbg(wpa_s, MSG_DEBUG, "Beginning of SSID list");
- if (wpa_s->conf->sched_scan_interval)
- wpa_s->sched_scan_interval =
- wpa_s->conf->sched_scan_interval;
- if (wpa_s->sched_scan_interval == 0)
- wpa_s->sched_scan_interval = 10;
wpa_s->sched_scan_timeout = max_sched_scan_ssids * 2;
wpa_s->first_sched_scan = 1;
ssid = wpa_s->conf->ssid;
scan_params = ¶ms;
scan:
- if (ssid || !wpa_s->first_sched_scan) {
+ wpa_s->sched_scan_timed_out = 0;
+
+ /*
+ * We cannot support multiple scan plans if the scan request includes
+ * too many SSID's, so in this case use only the last scan plan and make
+ * it run infinitely. It will be stopped by the timeout.
+ */
+ if (wpa_s->sched_scan_plans_num == 1 ||
+ (wpa_s->sched_scan_plans_num && !ssid && wpa_s->first_sched_scan)) {
+ params.sched_scan_plans = wpa_s->sched_scan_plans;
+ params.sched_scan_plans_num = wpa_s->sched_scan_plans_num;
+ } else if (wpa_s->sched_scan_plans_num > 1) {
wpa_dbg(wpa_s, MSG_DEBUG,
- "Starting sched scan: interval %d timeout %d",
- wpa_s->sched_scan_interval, wpa_s->sched_scan_timeout);
+ "Too many SSIDs. Default to using single scheduled_scan plan");
+ params.sched_scan_plans =
+ &wpa_s->sched_scan_plans[wpa_s->sched_scan_plans_num -
+ 1];
+ params.sched_scan_plans_num = 1;
} else {
+ if (wpa_s->conf->sched_scan_interval)
+ scan_plan.interval = wpa_s->conf->sched_scan_interval;
+ else
+ scan_plan.interval = 10;
+
+ if (scan_plan.interval > wpa_s->max_sched_scan_plan_interval) {
+ wpa_printf(MSG_WARNING,
+ "Scan interval too long(%u), use the maximum allowed(%u)",
+ scan_plan.interval,
+ wpa_s->max_sched_scan_plan_interval);
+ scan_plan.interval =
+ wpa_s->max_sched_scan_plan_interval;
+ }
+
+ scan_plan.iterations = 0;
+ params.sched_scan_plans = &scan_plan;
+ params.sched_scan_plans_num = 1;
+ }
+
+ if (ssid || !wpa_s->first_sched_scan) {
wpa_dbg(wpa_s, MSG_DEBUG,
- "Starting sched scan: interval %d (no timeout)",
- wpa_s->sched_scan_interval);
+ "Starting sched scan: interval %u timeout %d",
+ params.sched_scan_plans[0].interval,
+ wpa_s->sched_scan_timeout);
+ } else {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Starting sched scan (no timeout)");
}
wpa_setband_scan_freqs(wpa_s, scan_params);
}
}
- ret = wpa_supplicant_start_sched_scan(wpa_s, scan_params,
- wpa_s->sched_scan_interval);
+ ret = wpa_supplicant_start_sched_scan(wpa_s, scan_params);
wpabuf_free(extra_ie);
os_free(params.filter_ssids);
if (ret) {
wpa_s, NULL);
wpa_s->first_sched_scan = 0;
wpa_s->sched_scan_timeout /= 2;
- wpa_s->sched_scan_interval *= 2;
- if (wpa_s->sched_scan_timeout < wpa_s->sched_scan_interval) {
- wpa_s->sched_scan_interval = 10;
+ params.sched_scan_plans[0].interval *= 2;
+ if ((unsigned int) wpa_s->sched_scan_timeout <
+ params.sched_scan_plans[0].interval ||
+ params.sched_scan_plans[0].interval >
+ wpa_s->max_sched_scan_plan_interval) {
+ params.sched_scan_plans[0].interval = 10;
wpa_s->sched_scan_timeout = max_sched_scan_ssids * 2;
}
}
int wpas_start_pno(struct wpa_supplicant *wpa_s)
{
- int ret, interval, prio;
+ int ret, prio;
size_t i, num_ssid, num_match_ssid;
struct wpa_ssid *ssid;
struct wpa_driver_scan_params params;
+ struct sched_scan_plan scan_plan;
if (!wpa_s->sched_scan_supported)
return -1;
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;
+ if (wpa_s->sched_scan_plans_num) {
+ params.sched_scan_plans = wpa_s->sched_scan_plans;
+ params.sched_scan_plans_num = wpa_s->sched_scan_plans_num;
+ } else {
+ /* Set one scan plan that will run infinitely */
+ if (wpa_s->conf->sched_scan_interval)
+ scan_plan.interval = wpa_s->conf->sched_scan_interval;
+ else
+ scan_plan.interval = 10;
+
+ scan_plan.iterations = 0;
+ params.sched_scan_plans = &scan_plan;
+ params.sched_scan_plans_num = 1;
+ }
if (params.freqs == NULL && wpa_s->manual_sched_scan_freqs) {
wpa_dbg(wpa_s, MSG_DEBUG, "Limit sched scan to specified channels");
}
}
- ret = wpa_supplicant_start_sched_scan(wpa_s, ¶ms, interval);
+ ret = wpa_supplicant_start_sched_scan(wpa_s, ¶ms);
os_free(params.filter_ssids);
if (ret == 0)
wpa_s->pno = 1;
return 0;
}
+
+
+int wpas_sched_scan_plans_set(struct wpa_supplicant *wpa_s, const char *cmd)
+{
+ struct sched_scan_plan *scan_plans = NULL;
+ const char *token, *context = NULL;
+ unsigned int num = 0;
+
+ if (!cmd)
+ return -1;
+
+ while ((token = cstr_token(cmd, " ", &context))) {
+ int ret;
+ struct sched_scan_plan *scan_plan, *n;
+
+ n = os_realloc_array(scan_plans, num + 1, sizeof(*scan_plans));
+ if (!n)
+ goto fail;
+
+ scan_plans = n;
+ scan_plan = &scan_plans[num];
+ num++;
+
+ ret = sscanf(token, "%u:%u", &scan_plan->interval,
+ &scan_plan->iterations);
+ if (ret <= 0 || ret > 2 || !scan_plan->interval) {
+ wpa_printf(MSG_ERROR,
+ "Invalid sched scan plan input: %s", token);
+ goto fail;
+ }
+
+ if (!scan_plan->interval) {
+ wpa_printf(MSG_ERROR,
+ "scan plan %u: Interval cannot be zero",
+ num);
+ goto fail;
+ }
+
+ if (scan_plan->interval > wpa_s->max_sched_scan_plan_interval) {
+ wpa_printf(MSG_WARNING,
+ "scan plan %u: Scan interval too long(%u), use the maximum allowed(%u)",
+ num, scan_plan->interval,
+ wpa_s->max_sched_scan_plan_interval);
+ scan_plan->interval =
+ wpa_s->max_sched_scan_plan_interval;
+ }
+
+ if (ret == 1) {
+ scan_plan->iterations = 0;
+ break;
+ }
+
+ if (!scan_plan->iterations) {
+ wpa_printf(MSG_ERROR,
+ "scan plan %u: Number of iterations cannot be zero",
+ num);
+ goto fail;
+ }
+
+ if (scan_plan->iterations >
+ wpa_s->max_sched_scan_plan_iterations) {
+ wpa_printf(MSG_WARNING,
+ "scan plan %u: Too many iterations(%u), use the maximum allowed(%u)",
+ num, scan_plan->iterations,
+ wpa_s->max_sched_scan_plan_iterations);
+ scan_plan->iterations =
+ wpa_s->max_sched_scan_plan_iterations;
+ }
+
+ wpa_printf(MSG_DEBUG,
+ "scan plan %u: interval=%u iterations=%u",
+ num, scan_plan->interval, scan_plan->iterations);
+ }
+
+ if (!scan_plans) {
+ wpa_printf(MSG_ERROR, "Invalid scan plans entry");
+ goto fail;
+ }
+
+ if (cstr_token(cmd, " ", &context) || scan_plans[num - 1].iterations) {
+ wpa_printf(MSG_ERROR,
+ "All scan plans but the last must specify a number of iterations");
+ goto fail;
+ }
+
+ wpa_printf(MSG_DEBUG, "scan plan %u (last plan): interval=%u",
+ num, scan_plans[num - 1].interval);
+
+ if (num > wpa_s->max_sched_scan_plans) {
+ wpa_printf(MSG_WARNING,
+ "Too many scheduled scan plans (only %u supported)",
+ wpa_s->max_sched_scan_plans);
+ wpa_printf(MSG_WARNING,
+ "Use only the first %u scan plans, and the last one (in infinite loop)",
+ wpa_s->max_sched_scan_plans - 1);
+ os_memcpy(&scan_plans[wpa_s->max_sched_scan_plans - 1],
+ &scan_plans[num - 1], sizeof(*scan_plans));
+ num = wpa_s->max_sched_scan_plans;
+ }
+
+ os_free(wpa_s->sched_scan_plans);
+ wpa_s->sched_scan_plans = scan_plans;
+ wpa_s->sched_scan_plans_num = num;
+
+ return 0;
+
+fail:
+ os_free(scan_plans);
+ wpa_printf(MSG_ERROR, "invalid scan plans list");
+ return -1;
+}