/*
* WPA Supplicant - Scanning
- * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
}
+static void wpas_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
+{
+ struct wpa_supplicant *wpa_s = work->wpa_s;
+ struct wpa_driver_scan_params *params = work->ctx;
+ int ret;
+
+ if (deinit) {
+ wpa_scan_free_params(params);
+ return;
+ }
+
+ wpa_supplicant_notify_scanning(wpa_s, 1);
+
+ if (wpa_s->clear_driver_scan_cache)
+ params->only_new_results = 1;
+ ret = wpa_drv_scan(wpa_s, params);
+ wpa_scan_free_params(params);
+ work->ctx = NULL;
+ if (ret) {
+ wpa_supplicant_notify_scanning(wpa_s, 0);
+ wpas_notify_scan_done(wpa_s, 0);
+ radio_work_done(work);
+ return;
+ }
+
+ os_get_reltime(&wpa_s->scan_trigger_time);
+ wpa_s->scan_runs++;
+ wpa_s->normal_scans++;
+ wpa_s->own_scan_requested = 1;
+ wpa_s->clear_driver_scan_cache = 0;
+ wpa_s->scan_work = work;
+}
+
+
/**
* wpa_supplicant_trigger_scan - Request driver to start a scan
* @wpa_s: Pointer to wpa_supplicant data
int wpa_supplicant_trigger_scan(struct wpa_supplicant *wpa_s,
struct wpa_driver_scan_params *params)
{
- int ret;
+ struct wpa_driver_scan_params *ctx;
- wpa_supplicant_notify_scanning(wpa_s, 1);
+ if (wpa_s->scan_work) {
+ wpa_dbg(wpa_s, MSG_INFO, "Reject scan trigger since one is already pending");
+ return -1;
+ }
- ret = wpa_drv_scan(wpa_s, params);
- if (ret) {
- wpa_supplicant_notify_scanning(wpa_s, 0);
- wpas_notify_scan_done(wpa_s, 0);
- } else {
- os_get_reltime(&wpa_s->scan_trigger_time);
- wpa_s->scan_runs++;
- wpa_s->normal_scans++;
- wpa_s->own_scan_requested = 1;
+ ctx = wpa_scan_clone_params(params);
+ if (ctx == NULL)
+ return -1;
+
+ if (radio_add_work(wpa_s, 0, "scan", 0, wpas_trigger_scan_cb, ctx) < 0)
+ {
+ wpa_scan_free_params(ctx);
+ return -1;
}
- return ret;
+ return 0;
}
if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
wpa_dbg(wpa_s, MSG_DEBUG, "Skip scan - interface disabled");
- wpas_p2p_continue_after_scan(wpa_s);
return;
}
if (wpa_s->disconnected && wpa_s->scan_req == NORMAL_SCAN_REQ) {
wpa_dbg(wpa_s, MSG_DEBUG, "Disconnected - do not scan");
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
- wpas_p2p_continue_after_scan(wpa_s);
return;
}
wpa_s->scan_req == NORMAL_SCAN_REQ) {
wpa_dbg(wpa_s, MSG_DEBUG, "No enabled networks - do not scan");
wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
- wpas_p2p_continue_after_scan(wpa_s);
return;
}
#ifdef CONFIG_P2P
if (wpas_p2p_in_progress(wpa_s) || wpas_wpa_is_in_progress(wpa_s, 0)) {
- if (wpa_s->sta_scan_pending &&
- wpas_p2p_in_progress(wpa_s) == 2 &&
- wpa_s->global->p2p_cb_on_scan_complete) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Process pending station "
- "mode scan during P2P search");
- } else {
- wpa_dbg(wpa_s, MSG_DEBUG, "Delay station mode scan "
- "while P2P operation is in progress");
- wpa_s->sta_scan_pending = 1;
- wpa_supplicant_req_scan(wpa_s, 5, 0);
- return;
- }
+ wpa_dbg(wpa_s, MSG_DEBUG, "Delay station mode scan while P2P operation is in progress");
+ wpa_supplicant_req_scan(wpa_s, 5, 0);
+ return;
}
#endif /* CONFIG_P2P */
wpa_supplicant_optimize_freqs(wpa_s, ¶ms);
extra_ie = wpa_supplicant_extra_ies(wpa_s);
+ if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
+ wpa_s->manual_scan_only_new)
+ params.only_new_results = 1;
+
if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && params.freqs == NULL &&
wpa_s->manual_scan_freqs) {
wpa_dbg(wpa_s, MSG_DEBUG, "Limit manual scan to specified channels");
{
wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling scan request");
eloop_cancel_timeout(wpa_supplicant_scan, wpa_s, NULL);
- wpas_p2p_continue_after_scan(wpa_s);
}
filter_scan_res(wpa_s, scan_res);
#ifdef CONFIG_WPS
- if (wpas_wps_in_progress(wpa_s)) {
+ if (wpas_wps_searching(wpa_s)) {
wpa_dbg(wpa_s, MSG_DEBUG, "WPS: Order scan results with WPS "
"provisioning rules");
compar = wpa_scan_result_wps_compar;
}
wpas_notify_scan_results(wpa_s);
wpas_notify_scan_done(wpa_s, 1);
+ if (wpa_s->scan_work) {
+ struct wpa_radio_work *work = wpa_s->scan_work;
+ wpa_s->scan_work = NULL;
+ radio_work_done(work);
+ }
}
{
return eloop_is_timeout_registered(wpa_supplicant_scan, wpa_s, NULL);
}
+
+
+struct wpa_driver_scan_params *
+wpa_scan_clone_params(const struct wpa_driver_scan_params *src)
+{
+ struct wpa_driver_scan_params *params;
+ size_t i;
+ u8 *n;
+
+ params = os_zalloc(sizeof(*params));
+ if (params == NULL)
+ return NULL;
+
+ for (i = 0; i < src->num_ssids; i++) {
+ if (src->ssids[i].ssid) {
+ n = os_malloc(src->ssids[i].ssid_len);
+ if (n == NULL)
+ goto failed;
+ os_memcpy(n, src->ssids[i].ssid,
+ src->ssids[i].ssid_len);
+ params->ssids[i].ssid = n;
+ params->ssids[i].ssid_len = src->ssids[i].ssid_len;
+ }
+ }
+ params->num_ssids = src->num_ssids;
+
+ if (src->extra_ies) {
+ n = os_malloc(src->extra_ies_len);
+ if (n == NULL)
+ goto failed;
+ os_memcpy(n, src->extra_ies, src->extra_ies_len);
+ params->extra_ies = n;
+ params->extra_ies_len = src->extra_ies_len;
+ }
+
+ if (src->freqs) {
+ int len = int_array_len(src->freqs);
+ params->freqs = os_malloc((len + 1) * sizeof(int));
+ if (params->freqs == NULL)
+ goto failed;
+ os_memcpy(params->freqs, src->freqs, (len + 1) * sizeof(int));
+ }
+
+ if (src->filter_ssids) {
+ params->filter_ssids = os_malloc(sizeof(params->filter_ssids) *
+ src->num_filter_ssids);
+ if (params->filter_ssids == NULL)
+ goto failed;
+ os_memcpy(params->filter_ssids, src->filter_ssids,
+ sizeof(params->filter_ssids) * src->num_filter_ssids);
+ params->num_filter_ssids = src->num_filter_ssids;
+ }
+
+ params->filter_rssi = src->filter_rssi;
+ params->p2p_probe = src->p2p_probe;
+ params->only_new_results = src->only_new_results;
+
+ return params;
+
+failed:
+ wpa_scan_free_params(params);
+ return NULL;
+}
+
+
+void wpa_scan_free_params(struct wpa_driver_scan_params *params)
+{
+ size_t i;
+
+ if (params == NULL)
+ return;
+
+ for (i = 0; i < params->num_ssids; i++)
+ os_free((u8 *) params->ssids[i].ssid);
+ os_free((u8 *) params->extra_ies);
+ os_free(params->freqs);
+ os_free(params->filter_ssids);
+ os_free(params);
+}
projects / thirdparty / hostap.git / blobdiff