1 files changed, 676 insertions, 138 deletions

diff --git a/contrib/wpa/wpa_supplicant/scan.c b/contrib/wpa/wpa_supplicant/scan.c
index d7049a1..7abb028 100644
--- a/contrib/wpa/wpa_supplicant/scan.c
+++ b/contrib/wpa/wpa_supplicant/scan.c
@@ -1,6 +1,6 @@
 /*
  * WPA Supplicant - Scanning
- * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
  *
  * This software may be distributed under the terms of the BSD license.
  * See README for more details.
@@ -36,8 +36,7 @@ static void wpa_supplicant_gen_assoc_event(struct wpa_supplicant *wpa_s)
 
 	if (wpa_s->current_ssid == NULL) {
 		wpa_s->current_ssid = ssid;
-		if (wpa_s->current_ssid != NULL)
-			wpas_notify_network_changed(wpa_s);
+		wpas_notify_network_changed(wpa_s);
 	}
 	wpa_supplicant_initiate_eapol(wpa_s);
 	wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with a configured "
@@ -60,10 +59,7 @@ static int wpas_wps_in_use(struct wpa_supplicant *wpa_s,
 
 		wps = 1;
 		*req_type = wpas_wps_get_req_type(ssid);
-		if (!ssid->eap.phase1)
-			continue;
-
-		if (os_strstr(ssid->eap.phase1, "pbc=1"))
+		if (ssid->eap.phase1 && os_strstr(ssid->eap.phase1, "pbc=1"))
 			return 2;
 	}
 
@@ -121,9 +117,19 @@ int wpa_supplicant_enabled_networks(struct wpa_supplicant *wpa_s)
 static void wpa_supplicant_assoc_try(struct wpa_supplicant *wpa_s,
 				     struct wpa_ssid *ssid)
 {
+	int min_temp_disabled = 0;
+
 	while (ssid) {
-		if (!wpas_network_disabled(wpa_s, ssid))
-			break;
+		if (!wpas_network_disabled(wpa_s, ssid)) {
+			int temp_disabled = wpas_temp_disabled(wpa_s, ssid);
+
+			if (temp_disabled <= 0)
+				break;
+
+			if (!min_temp_disabled ||
+			    temp_disabled < min_temp_disabled)
+				min_temp_disabled = temp_disabled;
+		}
 		ssid = ssid->next;
 	}
 
@@ -132,7 +138,7 @@ static void wpa_supplicant_assoc_try(struct wpa_supplicant *wpa_s,
 		wpa_dbg(wpa_s, MSG_DEBUG, "wpa_supplicant_assoc_try: Reached "
 			"end of scan list - go back to beginning");
 		wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
-		wpa_supplicant_req_scan(wpa_s, 0, 0);
+		wpa_supplicant_req_scan(wpa_s, min_temp_disabled, 0);
 		return;
 	}
 	if (ssid->next) {
@@ -166,6 +172,8 @@ static void wpas_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
 	if (wpas_update_random_addr_disassoc(wpa_s) < 0) {
 		wpa_msg(wpa_s, MSG_INFO,
 			"Failed to assign random MAC address for a scan");
+		wpa_scan_free_params(params);
+		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_FAILED "ret=-1");
 		radio_work_done(work);
 		return;
 	}
@@ -178,10 +186,22 @@ static void wpas_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
 		params->only_new_results = 1;
 	}
 	ret = wpa_drv_scan(wpa_s, params);
+	/*
+	 * Store the obtained vendor scan cookie (if any) in wpa_s context.
+	 * The current design is to allow only one scan request on each
+	 * interface, hence having this scan cookie stored in wpa_s context is
+	 * fine for now.
+	 *
+	 * Revisit this logic if concurrent scan operations per interface
+	 * is supported.
+	 */
+	if (ret == 0)
+		wpa_s->curr_scan_cookie = params->scan_cookie;
 	wpa_scan_free_params(params);
 	work->ctx = NULL;
 	if (ret) {
-		int retry = wpa_s->last_scan_req != MANUAL_SCAN_REQ;
+		int retry = wpa_s->last_scan_req != MANUAL_SCAN_REQ &&
+			!wpa_s->beacon_rep_data.token;
 
 		if (wpa_s->disconnected)
 			retry = 0;
@@ -199,7 +219,14 @@ static void wpas_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
 			/* Restore scan_req since we will try to scan again */
 			wpa_s->scan_req = wpa_s->last_scan_req;
 			wpa_supplicant_req_scan(wpa_s, 1, 0);
+		} else if (wpa_s->scan_res_handler) {
+			/* Clear the scan_res_handler */
+			wpa_s->scan_res_handler = NULL;
 		}
+
+		if (wpa_s->beacon_rep_data.token)
+			wpas_rrm_refuse_request(wpa_s);
+
 		return;
 	}
 
@@ -229,12 +256,11 @@ int wpa_supplicant_trigger_scan(struct wpa_supplicant *wpa_s,
 	}
 
 	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)
+	if (!ctx ||
+	    radio_add_work(wpa_s, 0, "scan", 0, wpas_trigger_scan_cb, ctx) < 0)
 	{
 		wpa_scan_free_params(ctx);
+		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_FAILED "ret=-1");
 		return -1;
 	}
 
@@ -266,14 +292,14 @@ wpa_supplicant_sched_scan_timeout(void *eloop_ctx, void *timeout_ctx)
 }
 
 
-int wpa_supplicant_start_sched_scan(struct wpa_supplicant *wpa_s,
-				    struct wpa_driver_scan_params *params,
-				    int interval)
+static int
+wpa_supplicant_start_sched_scan(struct wpa_supplicant *wpa_s,
+				struct wpa_driver_scan_params *params)
 {
 	int ret;
 
 	wpa_supplicant_notify_scanning(wpa_s, 1);
-	ret = wpa_drv_sched_scan(wpa_s, params, interval * 1000);
+	ret = wpa_drv_sched_scan(wpa_s, params);
 	if (ret)
 		wpa_supplicant_notify_scanning(wpa_s, 0);
 	else
@@ -283,7 +309,7 @@ int wpa_supplicant_start_sched_scan(struct wpa_supplicant *wpa_s,
 }
 
 
-int wpa_supplicant_stop_sched_scan(struct wpa_supplicant *wpa_s)
+static int wpa_supplicant_stop_sched_scan(struct wpa_supplicant *wpa_s)
 {
 	int ret;
 
@@ -429,6 +455,68 @@ static void wpas_add_interworking_elements(struct wpa_supplicant *wpa_s,
 #endif /* CONFIG_INTERWORKING */
 
 
+#ifdef CONFIG_MBO
+static void wpas_fils_req_param_add_max_channel(struct wpa_supplicant *wpa_s,
+						struct wpabuf **ie)
+{
+	if (wpabuf_resize(ie, 5)) {
+		wpa_printf(MSG_DEBUG,
+			   "Failed to allocate space for FILS Request Parameters element");
+		return;
+	}
+
+	/* FILS Request Parameters element */
+	wpabuf_put_u8(*ie, WLAN_EID_EXTENSION);
+	wpabuf_put_u8(*ie, 3); /* FILS Request attribute length */
+	wpabuf_put_u8(*ie, WLAN_EID_EXT_FILS_REQ_PARAMS);
+	/* Parameter control bitmap */
+	wpabuf_put_u8(*ie, 0);
+	/* Max Channel Time field - contains the value of MaxChannelTime
+	 * parameter of the MLME-SCAN.request primitive represented in units of
+	 * TUs, as an unsigned integer. A Max Channel Time field value of 255
+	 * is used to indicate any duration of more than 254 TUs, or an
+	 * unspecified or unknown duration. (IEEE Std 802.11ai-2016, 9.4.2.178)
+	 */
+	wpabuf_put_u8(*ie, 255);
+}
+#endif /* CONFIG_MBO */
+
+
+void wpa_supplicant_set_default_scan_ies(struct wpa_supplicant *wpa_s)
+{
+	struct wpabuf *default_ies = NULL;
+	u8 ext_capab[18];
+	int ext_capab_len;
+	enum wpa_driver_if_type type = WPA_IF_STATION;
+
+#ifdef CONFIG_P2P
+	if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT)
+		type = WPA_IF_P2P_CLIENT;
+#endif /* CONFIG_P2P */
+
+	wpa_drv_get_ext_capa(wpa_s, type);
+
+	ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
+					     sizeof(ext_capab));
+	if (ext_capab_len > 0 &&
+	    wpabuf_resize(&default_ies, ext_capab_len) == 0)
+		wpabuf_put_data(default_ies, ext_capab, ext_capab_len);
+
+#ifdef CONFIG_MBO
+	if (wpa_s->enable_oce & OCE_STA)
+		wpas_fils_req_param_add_max_channel(wpa_s, &default_ies);
+	/* Send MBO and OCE capabilities */
+	if (wpabuf_resize(&default_ies, 12) == 0)
+		wpas_mbo_scan_ie(wpa_s, default_ies);
+#endif /* CONFIG_MBO */
+
+	if (default_ies)
+		wpa_drv_set_default_scan_ies(wpa_s, wpabuf_head(default_ies),
+					     wpabuf_len(default_ies));
+	wpabuf_free(default_ies);
+}
+
+
 static struct wpabuf * wpa_supplicant_extra_ies(struct wpa_supplicant *wpa_s)
 {
 	struct wpabuf *extra_ie = NULL;
@@ -439,6 +527,13 @@ static struct wpabuf * wpa_supplicant_extra_ies(struct wpa_supplicant *wpa_s)
 	enum wps_request_type req_type = WPS_REQ_ENROLLEE_INFO;
 #endif /* CONFIG_WPS */
 
+#ifdef CONFIG_P2P
+	if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT)
+		wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
+	else
+#endif /* CONFIG_P2P */
+		wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
+
 	ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
 					     sizeof(ext_capab));
 	if (ext_capab_len > 0 &&
@@ -451,6 +546,11 @@ static struct wpabuf * wpa_supplicant_extra_ies(struct wpa_supplicant *wpa_s)
 		wpas_add_interworking_elements(wpa_s, extra_ie);
 #endif /* CONFIG_INTERWORKING */
 
+#ifdef CONFIG_MBO
+	if (wpa_s->enable_oce & OCE_STA)
+		wpas_fils_req_param_add_max_channel(wpa_s, &extra_ie);
+#endif /* CONFIG_MBO */
+
 #ifdef CONFIG_WPS
 	wps = wpas_wps_in_use(wpa_s, &req_type);
 
@@ -481,8 +581,8 @@ static struct wpabuf * wpa_supplicant_extra_ies(struct wpa_supplicant *wpa_s)
 #endif /* CONFIG_WPS */
 
 #ifdef CONFIG_HS20
-	if (wpa_s->conf->hs20 && wpabuf_resize(&extra_ie, 7) == 0)
-		wpas_hs20_add_indication(extra_ie, -1);
+	if (wpa_s->conf->hs20 && wpabuf_resize(&extra_ie, 9) == 0)
+		wpas_hs20_add_indication(extra_ie, -1, 0);
 #endif /* CONFIG_HS20 */
 
 #ifdef CONFIG_FST
@@ -491,6 +591,19 @@ static struct wpabuf * wpa_supplicant_extra_ies(struct wpa_supplicant *wpa_s)
 		wpabuf_put_buf(extra_ie, wpa_s->fst_ies);
 #endif /* CONFIG_FST */
 
+#ifdef CONFIG_MBO
+	/* Send MBO and OCE capabilities */
+	if (wpabuf_resize(&extra_ie, 12) == 0)
+		wpas_mbo_scan_ie(wpa_s, extra_ie);
+#endif /* CONFIG_MBO */
+
+	if (wpa_s->vendor_elem[VENDOR_ELEM_PROBE_REQ]) {
+		struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_PROBE_REQ];
+
+		if (wpabuf_resize(&extra_ie, wpabuf_len(buf)) == 0)
+			wpabuf_put_buf(extra_ie, buf);
+	}
+
 	return extra_ie;
 }
 
@@ -522,21 +635,6 @@ static int non_p2p_network_enabled(struct wpa_supplicant *wpa_s)
 #endif /* CONFIG_P2P */
 
 
-static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
-					  u16 num_modes,
-					  enum hostapd_hw_mode mode)
-{
-	u16 i;
-
-	for (i = 0; i < num_modes; i++) {
-		if (modes[i].mode == mode)
-			return &modes[i];
-	}
-
-	return NULL;
-}
-
-
 static void wpa_setband_scan_freqs_list(struct wpa_supplicant *wpa_s,
 					enum hostapd_hw_mode band,
 					struct wpa_driver_scan_params *params)
@@ -579,6 +677,87 @@ static void wpa_setband_scan_freqs(struct wpa_supplicant *wpa_s,
 }
 
 
+static void wpa_add_scan_ssid(struct wpa_supplicant *wpa_s,
+			      struct wpa_driver_scan_params *params,
+			      size_t max_ssids, const u8 *ssid, size_t ssid_len)
+{
+	unsigned int j;
+
+	for (j = 0; j < params->num_ssids; j++) {
+		if (params->ssids[j].ssid_len == ssid_len &&
+		    params->ssids[j].ssid &&
+		    os_memcmp(params->ssids[j].ssid, ssid, ssid_len) == 0)
+			return; /* already in the list */
+	}
+
+	if (params->num_ssids + 1 > max_ssids) {
+		wpa_printf(MSG_DEBUG, "Over max scan SSIDs for manual request");
+		return;
+	}
+
+	wpa_printf(MSG_DEBUG, "Scan SSID (manual request): %s",
+		   wpa_ssid_txt(ssid, ssid_len));
+
+	params->ssids[params->num_ssids].ssid = ssid;
+	params->ssids[params->num_ssids].ssid_len = ssid_len;
+	params->num_ssids++;
+}
+
+
+static void wpa_add_owe_scan_ssid(struct wpa_supplicant *wpa_s,
+				  struct wpa_driver_scan_params *params,
+				  struct wpa_ssid *ssid, size_t max_ssids)
+{
+#ifdef CONFIG_OWE
+	struct wpa_bss *bss;
+
+	if (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE))
+		return;
+
+	wpa_printf(MSG_DEBUG, "OWE: Look for transition mode AP. ssid=%s",
+		   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
+
+	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
+		const u8 *owe, *pos, *end;
+		const u8 *owe_ssid;
+		size_t owe_ssid_len;
+
+		if (bss->ssid_len != ssid->ssid_len ||
+		    os_memcmp(bss->ssid, ssid->ssid, ssid->ssid_len) != 0)
+			continue;
+
+		owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
+		if (!owe || owe[1] < 4)
+			continue;
+
+		pos = owe + 6;
+		end = owe + 2 + owe[1];
+
+		/* Must include BSSID and ssid_len */
+		if (end - pos < ETH_ALEN + 1)
+			return;
+
+		/* Skip BSSID */
+		pos += ETH_ALEN;
+		owe_ssid_len = *pos++;
+		owe_ssid = pos;
+
+		if ((size_t) (end - pos) < owe_ssid_len ||
+		    owe_ssid_len > SSID_MAX_LEN)
+			return;
+
+		wpa_printf(MSG_DEBUG,
+			   "OWE: scan_ssids: transition mode OWE ssid=%s",
+			   wpa_ssid_txt(owe_ssid, owe_ssid_len));
+
+		wpa_add_scan_ssid(wpa_s, params, max_ssids,
+				  owe_ssid, owe_ssid_len);
+		return;
+	}
+#endif /* CONFIG_OWE */
+}
+
+
 static void wpa_set_scan_ssids(struct wpa_supplicant *wpa_s,
 			       struct wpa_driver_scan_params *params,
 			       size_t max_ssids)
@@ -586,34 +765,24 @@ static void wpa_set_scan_ssids(struct wpa_supplicant *wpa_s,
 	unsigned int i;
 	struct wpa_ssid *ssid;
 
-	for (i = 0; i < wpa_s->scan_id_count; i++) {
-		unsigned int j;
+	/*
+	 * For devices with max_ssids greater than 1, leave the last slot empty
+	 * for adding the wildcard scan entry.
+	 */
+	max_ssids = max_ssids > 1 ? max_ssids - 1 : max_ssids;
 
+	for (i = 0; i < wpa_s->scan_id_count; i++) {
 		ssid = wpa_config_get_network(wpa_s->conf, wpa_s->scan_id[i]);
-		if (!ssid || !ssid->scan_ssid)
+		if (!ssid)
 			continue;
-
-		for (j = 0; j < params->num_ssids; j++) {
-			if (params->ssids[j].ssid_len == ssid->ssid_len &&
-			    params->ssids[j].ssid &&
-			    os_memcmp(params->ssids[j].ssid, ssid->ssid,
-				      ssid->ssid_len) == 0)
-				break;
-		}
-		if (j < params->num_ssids)
-			continue; /* already in the list */
-
-		if (params->num_ssids + 1 > max_ssids) {
-			wpa_printf(MSG_DEBUG,
-				   "Over max scan SSIDs for manual request");
-			break;
-		}
-
-		wpa_printf(MSG_DEBUG, "Scan SSID (manual request): %s",
-			   wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
-		params->ssids[params->num_ssids].ssid = ssid->ssid;
-		params->ssids[params->num_ssids].ssid_len = ssid->ssid_len;
-		params->num_ssids++;
+		if (ssid->scan_ssid)
+			wpa_add_scan_ssid(wpa_s, params, max_ssids,
+					  ssid->ssid, ssid->ssid_len);
+		/*
+		 * Also add the SSID of the OWE BSS, to allow discovery of
+		 * transition mode APs more quickly.
+		 */
+		wpa_add_owe_scan_ssid(wpa_s, params, ssid, max_ssids);
 	}
 
 	wpa_s->scan_id_count = 0;
@@ -662,10 +831,7 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 	size_t max_ssids;
 	int connect_without_scan = 0;
 
-	if (wpa_s->pno || wpa_s->pno_sched_pending) {
-		wpa_dbg(wpa_s, MSG_DEBUG, "Skip scan - PNO is in progress");
-		return;
-	}
+	wpa_s->ignore_post_flush_scan_res = 0;
 
 	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "Skip scan - interface disabled");
@@ -727,6 +893,21 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 		return;
 	}
 
+	/*
+	 * Don't cancel the scan based on ongoing PNO; defer it. Some scans are
+	 * used for changing modes inside wpa_supplicant (roaming,
+	 * auto-reconnect, etc). Discarding the scan might hurt these processes.
+	 * The normal use case for PNO is to suspend the host immediately after
+	 * starting PNO, so the periodic 100 ms attempts to run the scan do not
+	 * normally happen in practice multiple times, i.e., this is simply
+	 * restarting scanning once the host is woken up and PNO stopped.
+	 */
+	if (wpa_s->pno || wpa_s->pno_sched_pending) {
+		wpa_dbg(wpa_s, MSG_DEBUG, "Defer scan - PNO is in progress");
+		wpa_supplicant_req_scan(wpa_s, 0, 100000);
+		return;
+	}
+
 	if (wpa_s->conf->ap_scan == 2)
 		max_ssids = 1;
 	else {
@@ -840,12 +1021,10 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 		 * slot for the zero-terminator.
 		 */
 		params.freqs = os_malloc(sizeof(int) * 2);
-		if (params.freqs == NULL) {
-			wpa_dbg(wpa_s, MSG_ERROR, "Memory allocation failed");
-			return;
+		if (params.freqs) {
+			params.freqs[0] = wpa_s->assoc_freq;
+			params.freqs[1] = 0;
 		}
-		params.freqs[0] = wpa_s->assoc_freq;
-		params.freqs[1] = 0;
 
 		/*
 		 * Reset the reattach flag so that we fall back to full scan if
@@ -870,6 +1049,17 @@ static void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 				if (params.num_ssids + 1 >= max_ssids)
 					break;
 			}
+
+			if (!wpas_network_disabled(wpa_s, ssid)) {
+				/*
+				 * Also add the SSID of the OWE BSS, to allow
+				 * discovery of transition mode APs more
+				 * quickly.
+				 */
+				wpa_add_owe_scan_ssid(wpa_s, &params, ssid,
+						      max_ssids);
+			}
+
 			ssid = ssid->next;
 			if (ssid == start)
 				break;
@@ -956,6 +1146,13 @@ ssid_list_set:
 		wpa_s->manual_scan_freqs = NULL;
 	}
 
+	if (params.freqs == NULL && wpa_s->select_network_scan_freqs) {
+		wpa_dbg(wpa_s, MSG_DEBUG,
+			"Limit select_network scan to specified channels");
+		params.freqs = wpa_s->select_network_scan_freqs;
+		wpa_s->select_network_scan_freqs = NULL;
+	}
+
 	if (params.freqs == NULL && wpa_s->next_scan_freqs) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "Optimize scan based on previously "
 			"generated frequency list");
@@ -990,6 +1187,11 @@ ssid_list_set:
 		}
 	}
 
+#ifdef CONFIG_MBO
+	if (wpa_s->enable_oce & OCE_STA)
+		params.oce_scan = 1;
+#endif /* CONFIG_MBO */
+
 	params.filter_ssids = wpa_supplicant_build_filter_ssids(
 		wpa_s->conf, &params.num_filter_ssids);
 	if (extra_ie) {
@@ -1008,7 +1210,8 @@ ssid_list_set:
 	}
 #endif /* CONFIG_P2P */
 
-	if (wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCAN) {
+	if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCAN) &&
+	    wpa_s->wpa_state <= WPA_SCANNING) {
 		params.mac_addr_rand = 1;
 		if (wpa_s->mac_addr_scan) {
 			params.mac_addr = wpa_s->mac_addr_scan;
@@ -1016,6 +1219,27 @@ ssid_list_set:
 		}
 	}
 
+	if (!is_zero_ether_addr(wpa_s->next_scan_bssid)) {
+		struct wpa_bss *bss;
+
+		params.bssid = wpa_s->next_scan_bssid;
+		bss = wpa_bss_get_bssid_latest(wpa_s, params.bssid);
+		if (bss && bss->ssid_len && params.num_ssids == 1 &&
+		    params.ssids[0].ssid_len == 0) {
+			params.ssids[0].ssid = bss->ssid;
+			params.ssids[0].ssid_len = bss->ssid_len;
+			wpa_dbg(wpa_s, MSG_DEBUG,
+				"Scan a previously specified BSSID " MACSTR
+				" and SSID %s",
+				MAC2STR(params.bssid),
+				wpa_ssid_txt(bss->ssid, bss->ssid_len));
+		} else {
+			wpa_dbg(wpa_s, MSG_DEBUG,
+				"Scan a previously specified BSSID " MACSTR,
+				MAC2STR(params.bssid));
+		}
+	}
+
 	scan_params = &params;
 
 scan:
@@ -1076,6 +1300,8 @@ scan:
 #ifdef CONFIG_INTERWORKING
 		wpa_s->interworking_fast_assoc_tried = 0;
 #endif /* CONFIG_INTERWORKING */
+		if (params.bssid)
+			os_memset(wpa_s->next_scan_bssid, 0, ETH_ALEN);
 	}
 }
 
@@ -1163,6 +1389,26 @@ int wpa_supplicant_delayed_sched_scan(struct wpa_supplicant *wpa_s,
 }
 
 
+static void
+wpa_scan_set_relative_rssi_params(struct wpa_supplicant *wpa_s,
+				  struct wpa_driver_scan_params *params)
+{
+	if (wpa_s->wpa_state != WPA_COMPLETED ||
+	    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SCHED_SCAN_RELATIVE_RSSI) ||
+	    wpa_s->srp.relative_rssi_set == 0)
+		return;
+
+	params->relative_rssi_set = 1;
+	params->relative_rssi = wpa_s->srp.relative_rssi;
+
+	if (wpa_s->srp.relative_adjust_rssi == 0)
+		return;
+
+	params->relative_adjust_band = wpa_s->srp.relative_adjust_band;
+	params->relative_adjust_rssi = wpa_s->srp.relative_adjust_rssi;
+}
+
+
 /**
  * wpa_supplicant_req_sched_scan - Start a periodic scheduled scan
  * @wpa_s: Pointer to wpa_supplicant data
@@ -1182,6 +1428,7 @@ int wpa_supplicant_req_sched_scan(struct wpa_supplicant *wpa_s)
 	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;
@@ -1193,6 +1440,8 @@ int wpa_supplicant_req_sched_scan(struct wpa_supplicant *wpa_s)
 	if (max_sched_scan_ssids < 1 || wpa_s->conf->disable_scan_offload)
 		return -1;
 
+	wpa_s->sched_scan_stop_req = 0;
+
 	if (wpa_s->sched_scanning) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "Already sched scanning");
 		return 0;
@@ -1271,11 +1520,6 @@ int wpa_supplicant_req_sched_scan(struct wpa_supplicant *wpa_s)
 
 	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;
@@ -1357,22 +1601,70 @@ int wpa_supplicant_req_sched_scan(struct wpa_supplicant *wpa_s)
 		int_array_concat(&params.freqs, wpa_s->conf->freq_list);
 	}
 
+#ifdef CONFIG_MBO
+	if (wpa_s->enable_oce & OCE_STA)
+		params.oce_scan = 1;
+#endif /* CONFIG_MBO */
+
 	scan_params = &params;
 
 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,
+			"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;
+	}
+
+	params.sched_scan_start_delay = wpa_s->conf->sched_scan_start_delay;
+
 	if (ssid || !wpa_s->first_sched_scan) {
 		wpa_dbg(wpa_s, MSG_DEBUG,
-			"Starting sched scan: interval %d timeout %d",
-			wpa_s->sched_scan_interval, wpa_s->sched_scan_timeout);
+			"Starting sched scan after %u seconds: interval %u timeout %d",
+			params.sched_scan_start_delay,
+			params.sched_scan_plans[0].interval,
+			wpa_s->sched_scan_timeout);
 	} else {
 		wpa_dbg(wpa_s, MSG_DEBUG,
-			"Starting sched scan: interval %d (no timeout)",
-			wpa_s->sched_scan_interval);
+			"Starting sched scan after %u seconds (no timeout)",
+			params.sched_scan_start_delay);
 	}
 
 	wpa_setband_scan_freqs(wpa_s, scan_params);
 
-	if (wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCHED_SCAN) {
+	if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_SCHED_SCAN) &&
+	    wpa_s->wpa_state <= WPA_SCANNING) {
 		params.mac_addr_rand = 1;
 		if (wpa_s->mac_addr_sched_scan) {
 			params.mac_addr = wpa_s->mac_addr_sched_scan;
@@ -1381,8 +1673,9 @@ scan:
 		}
 	}
 
-	ret = wpa_supplicant_start_sched_scan(wpa_s, scan_params,
-					      wpa_s->sched_scan_interval);
+	wpa_scan_set_relative_rssi_params(wpa_s, scan_params);
+
+	ret = wpa_supplicant_start_sched_scan(wpa_s, scan_params);
 	wpabuf_free(extra_ie);
 	os_free(params.filter_ssids);
 	if (ret) {
@@ -1400,9 +1693,12 @@ scan:
 				       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;
 		}
 	}
@@ -1457,6 +1753,9 @@ void wpa_supplicant_cancel_sched_scan(struct wpa_supplicant *wpa_s)
 	if (!wpa_s->sched_scanning)
 		return;
 
+	if (wpa_s->sched_scanning)
+		wpa_s->sched_scan_stop_req = 1;
+
 	wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling sched scan");
 	eloop_cancel_timeout(wpa_supplicant_sched_scan_timeout, wpa_s, NULL);
 	wpa_supplicant_stop_sched_scan(wpa_s);
@@ -1516,20 +1815,13 @@ static int wpa_scan_get_max_rate(const struct wpa_scan_res *res)
  */
 const u8 * wpa_scan_get_ie(const struct wpa_scan_res *res, u8 ie)
 {
-	const u8 *end, *pos;
+	size_t ie_len = res->ie_len;
 
-	pos = (const u8 *) (res + 1);
-	end = pos + res->ie_len;
+	/* Use the Beacon frame IEs if res->ie_len is not available */
+	if (!ie_len)
+		ie_len = res->beacon_ie_len;
 
-	while (pos + 1 < end) {
-		if (pos + 2 + pos[1] > end)
-			break;
-		if (pos[0] == ie)
-			return pos;
-		pos += 2 + pos[1];
-	}
-
-	return NULL;
+	return get_ie((const u8 *) (res + 1), ie_len, ie);
 }
 
 
@@ -1550,8 +1842,8 @@ const u8 * wpa_scan_get_vendor_ie(const struct wpa_scan_res *res,
 	pos = (const u8 *) (res + 1);
 	end = pos + res->ie_len;
 
-	while (pos + 1 < end) {
-		if (pos + 2 + pos[1] > end)
+	while (end - pos > 1) {
+		if (2 + pos[1] > end - pos)
 			break;
 		if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
 		    vendor_type == WPA_GET_BE32(&pos[2]))
@@ -1587,8 +1879,8 @@ const u8 * wpa_scan_get_vendor_ie_beacon(const struct wpa_scan_res *res,
 	pos += res->ie_len;
 	end = pos + res->beacon_ie_len;
 
-	while (pos + 1 < end) {
-		if (pos + 2 + pos[1] > end)
+	while (end - pos > 1) {
+		if (2 + pos[1] > end - pos)
 			break;
 		if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
 		    vendor_type == WPA_GET_BE32(&pos[2]))
@@ -1623,8 +1915,8 @@ struct wpabuf * wpa_scan_get_vendor_ie_multi(const struct wpa_scan_res *res,
 	pos = (const u8 *) (res + 1);
 	end = pos + res->ie_len;
 
-	while (pos + 1 < end) {
-		if (pos + 2 + pos[1] > end)
+	while (end - pos > 1) {
+		if (2 + pos[1] > end - pos)
 			break;
 		if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
 		    vendor_type == WPA_GET_BE32(&pos[2]))
@@ -1646,10 +1938,12 @@ struct wpabuf * wpa_scan_get_vendor_ie_multi(const struct wpa_scan_res *res,
  * This doc https://supportforums.cisco.com/docs/DOC-12954 says, "the general
  * rule of thumb is that any SNR above 20 is good." This one
  * http://www.cisco.com/en/US/tech/tk722/tk809/technologies_q_and_a_item09186a00805e9a96.shtml#qa23
- * recommends 25 as a minimum SNR for 54 Mbps data rate. 30 is chosen here as a
- * conservative value.
+ * recommends 25 as a minimum SNR for 54 Mbps data rate. The estimates used in
+ * scan_est_throughput() allow even smaller SNR values for the maximum rates
+ * (21 for 54 Mbps, 22 for VHT80 MCS9, 24 for HT40 and HT20 MCS7). Use 25 as a
+ * somewhat conservative value here.
  */
-#define GREAT_SNR 30
+#define GREAT_SNR 25
 
 #define IS_5GHZ(n) (n > 4000)
 
@@ -1697,10 +1991,13 @@ static int wpa_scan_result_compar(const void *a, const void *b)
 	}
 
 	/* if SNR is close, decide by max rate or frequency band */
+	if (snr_a && snr_b && abs(snr_b - snr_a) < 7) {
+		if (wa->est_throughput != wb->est_throughput)
+			return (int) wb->est_throughput -
+				(int) wa->est_throughput;
+	}
 	if ((snr_a && snr_b && abs(snr_b - snr_a) < 5) ||
 	    (wa->qual && wb->qual && abs(wb->qual - wa->qual) < 10)) {
-		if (wa->est_throughput != wb->est_throughput)
-			return wb->est_throughput - wa->est_throughput;
 		if (IS_5GHZ(wa->freq) ^ IS_5GHZ(wb->freq))
 			return IS_5GHZ(wa->freq) ? -1 : 1;
 	}
@@ -1832,8 +2129,8 @@ int wpa_supplicant_filter_bssid_match(struct wpa_supplicant *wpa_s,
 }
 
 
-static void filter_scan_res(struct wpa_supplicant *wpa_s,
-			    struct wpa_scan_results *res)
+void filter_scan_res(struct wpa_supplicant *wpa_s,
+		     struct wpa_scan_results *res)
 {
 	size_t i, j;
 
@@ -1860,13 +2157,13 @@ static void filter_scan_res(struct wpa_supplicant *wpa_s,
 
 /*
  * Noise floor values to use when we have signal strength
- * measurements, but no noise floor measurments. These values were
+ * measurements, but no noise floor measurements. These values were
  * measured in an office environment with many APs.
  */
 #define DEFAULT_NOISE_FLOOR_2GHZ (-89)
 #define DEFAULT_NOISE_FLOOR_5GHZ (-92)
 
-static void scan_snr(struct wpa_scan_res *res)
+void scan_snr(struct wpa_scan_res *res)
 {
 	if (res->flags & WPA_SCAN_NOISE_INVALID) {
 		res->noise = IS_5GHZ(res->freq) ?
@@ -1950,8 +2247,8 @@ static unsigned int max_vht80_rate(int snr)
 }
 
 
-static void scan_est_throughput(struct wpa_supplicant *wpa_s,
-				struct wpa_scan_res *res)
+void scan_est_throughput(struct wpa_supplicant *wpa_s,
+			 struct wpa_scan_res *res)
 {
 	enum local_hw_capab capab = wpa_s->hw_capab;
 	int rate; /* max legacy rate in 500 kb/s units */
@@ -2088,10 +2385,22 @@ wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s,
 	}
 #endif /* CONFIG_WPS */
 
-	qsort(scan_res->res, scan_res->num, sizeof(struct wpa_scan_res *),
-	      compar);
+	if (scan_res->res) {
+		qsort(scan_res->res, scan_res->num,
+		      sizeof(struct wpa_scan_res *), compar);
+	}
 	dump_scan_res(scan_res);
 
+	if (wpa_s->ignore_post_flush_scan_res) {
+		/* FLUSH command aborted an ongoing scan and these are the
+		 * results from the aborted scan. Do not process the results to
+		 * maintain flushed state. */
+		wpa_dbg(wpa_s, MSG_DEBUG,
+			"Do not update BSS table based on pending post-FLUSH scan results");
+		wpa_s->ignore_post_flush_scan_res = 0;
+		return scan_res;
+	}
+
 	wpa_bss_update_start(wpa_s);
 	for (i = 0; i < scan_res->num; i++)
 		wpa_bss_update_scan_res(wpa_s, scan_res->res[i],
@@ -2148,6 +2457,9 @@ void scan_only_handler(struct wpa_supplicant *wpa_s,
 		wpa_s->scan_work = NULL;
 		radio_work_done(work);
 	}
+
+	if (wpa_s->wpa_state == WPA_SCANNING)
+		wpa_supplicant_set_state(wpa_s, wpa_s->scan_prev_wpa_state);
 }
 
 
@@ -2170,11 +2482,10 @@ wpa_scan_clone_params(const struct wpa_driver_scan_params *src)
 
 	for (i = 0; i < src->num_ssids; i++) {
 		if (src->ssids[i].ssid) {
-			n = os_malloc(src->ssids[i].ssid_len);
+			n = os_memdup(src->ssids[i].ssid,
+				      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;
 		}
@@ -2182,30 +2493,26 @@ wpa_scan_clone_params(const struct wpa_driver_scan_params *src)
 	params->num_ssids = src->num_ssids;
 
 	if (src->extra_ies) {
-		n = os_malloc(src->extra_ies_len);
+		n = os_memdup(src->extra_ies, 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));
+		params->freqs = os_memdup(src->freqs, (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) *
+		params->filter_ssids = os_memdup(src->filter_ssids,
+						 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;
 	}
 
@@ -2213,6 +2520,20 @@ wpa_scan_clone_params(const struct wpa_driver_scan_params *src)
 	params->p2p_probe = src->p2p_probe;
 	params->only_new_results = src->only_new_results;
 	params->low_priority = src->low_priority;
+	params->duration = src->duration;
+	params->duration_mandatory = src->duration_mandatory;
+	params->oce_scan = src->oce_scan;
+
+	if (src->sched_scan_plans_num > 0) {
+		params->sched_scan_plans =
+			os_memdup(src->sched_scan_plans,
+				  sizeof(*src->sched_scan_plans) *
+				  src->sched_scan_plans_num);
+		if (!params->sched_scan_plans)
+			goto failed;
+
+		params->sched_scan_plans_num = src->sched_scan_plans_num;
+	}
 
 	if (src->mac_addr_rand) {
 		params->mac_addr_rand = src->mac_addr_rand;
@@ -2231,6 +2552,20 @@ wpa_scan_clone_params(const struct wpa_driver_scan_params *src)
 			params->mac_addr_mask = mac_addr + ETH_ALEN;
 		}
 	}
+
+	if (src->bssid) {
+		u8 *bssid;
+
+		bssid = os_memdup(src->bssid, ETH_ALEN);
+		if (!bssid)
+			goto failed;
+		params->bssid = bssid;
+	}
+
+	params->relative_rssi_set = src->relative_rssi_set;
+	params->relative_rssi = src->relative_rssi;
+	params->relative_adjust_band = src->relative_adjust_band;
+	params->relative_adjust_rssi = src->relative_adjust_rssi;
 	return params;
 
 failed:
@@ -2251,6 +2586,7 @@ void wpa_scan_free_params(struct wpa_driver_scan_params *params)
 	os_free((u8 *) params->extra_ies);
 	os_free(params->freqs);
 	os_free(params->filter_ssids);
+	os_free(params->sched_scan_plans);
 
 	/*
 	 * Note: params->mac_addr_mask points to same memory allocation and
@@ -2258,25 +2594,36 @@ void wpa_scan_free_params(struct wpa_driver_scan_params *params)
 	 */
 	os_free((u8 *) params->mac_addr);
 
+	os_free((u8 *) params->bssid);
+
 	os_free(params);
 }
 
 
 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;
+	unsigned int max_sched_scan_ssids;
 
 	if (!wpa_s->sched_scan_supported)
 		return -1;
 
+	if (wpa_s->max_sched_scan_ssids > WPAS_MAX_SCAN_SSIDS)
+		max_sched_scan_ssids = WPAS_MAX_SCAN_SSIDS;
+	else
+		max_sched_scan_ssids = wpa_s->max_sched_scan_ssids;
+	if (max_sched_scan_ssids < 1)
+		return -1;
+
 	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_s->wpa_state < WPA_COMPLETED)) {
 		wpa_printf(MSG_ERROR, "PNO: In assoc process");
 		return -EAGAIN;
 	}
@@ -2292,6 +2639,13 @@ int wpas_start_pno(struct wpa_supplicant *wpa_s)
 		}
 	}
 
+	if (wpa_s->sched_scan_stop_req) {
+		wpa_printf(MSG_DEBUG,
+			   "Schedule PNO after previous sched scan has stopped");
+		wpa_s->pno_sched_pending = 1;
+		return 0;
+	}
+
 	os_memset(&params, 0, sizeof(params));
 
 	num_ssid = num_match_ssid = 0;
@@ -2315,10 +2669,10 @@ int wpas_start_pno(struct wpa_supplicant *wpa_s)
 		num_ssid++;
 	}
 
-	if (num_ssid > WPAS_MAX_SCAN_SSIDS) {
+	if (num_ssid > max_sched_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;
+			   "%u", max_sched_scan_ssids, (unsigned int) num_ssid);
+		num_ssid = max_sched_scan_ssids;
 	}
 
 	if (num_match_ssid > wpa_s->max_match_sets) {
@@ -2361,15 +2715,30 @@ int wpas_start_pno(struct wpa_supplicant *wpa_s)
 	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;
+	}
+
+	params.sched_scan_start_delay = wpa_s->conf->sched_scan_start_delay;
 
 	if (params.freqs == NULL && wpa_s->manual_sched_scan_freqs) {
 		wpa_dbg(wpa_s, MSG_DEBUG, "Limit sched scan to specified channels");
 		params.freqs = wpa_s->manual_sched_scan_freqs;
 	}
 
-	if (wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_PNO) {
+	if ((wpa_s->mac_addr_rand_enable & MAC_ADDR_RAND_PNO) &&
+	    wpa_s->wpa_state <= WPA_SCANNING) {
 		params.mac_addr_rand = 1;
 		if (wpa_s->mac_addr_pno) {
 			params.mac_addr = wpa_s->mac_addr_pno;
@@ -2377,7 +2746,9 @@ int wpas_start_pno(struct wpa_supplicant *wpa_s)
 		}
 	}
 
-	ret = wpa_supplicant_start_sched_scan(wpa_s, &params, interval);
+	wpa_scan_set_relative_rssi_params(wpa_s, &params);
+
+	ret = wpa_supplicant_start_sched_scan(wpa_s, &params);
 	os_free(params.filter_ssids);
 	if (ret == 0)
 		wpa_s->pno = 1;
@@ -2395,6 +2766,7 @@ int wpas_stop_pno(struct wpa_supplicant *wpa_s)
 		return 0;
 
 	ret = wpa_supplicant_stop_sched_scan(wpa_s);
+	wpa_s->sched_scan_stop_req = 1;
 
 	wpa_s->pno = 0;
 	wpa_s->pno_sched_pending = 0;
@@ -2435,6 +2807,13 @@ int wpas_mac_addr_rand_scan_set(struct wpa_supplicant *wpa_s,
 {
 	u8 *tmp = NULL;
 
+	if ((wpa_s->mac_addr_rand_supported & type) != type ) {
+		wpa_printf(MSG_INFO,
+			   "scan: MAC randomization type %u != supported=%u",
+			   type, wpa_s->mac_addr_rand_supported);
+		return -1;
+	}
+
 	wpas_mac_addr_rand_scan_clear(wpa_s, type);
 
 	if (addr) {
@@ -2462,3 +2841,162 @@ int wpas_mac_addr_rand_scan_set(struct wpa_supplicant *wpa_s,
 	wpa_s->mac_addr_rand_enable |= type;
 	return 0;
 }
+
+
+int wpas_abort_ongoing_scan(struct wpa_supplicant *wpa_s)
+{
+	struct wpa_radio_work *work;
+	struct wpa_radio *radio = wpa_s->radio;
+
+	dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
+		if (work->wpa_s != wpa_s || !work->started ||
+		    (os_strcmp(work->type, "scan") != 0 &&
+		     os_strcmp(work->type, "p2p-scan") != 0))
+			continue;
+		wpa_dbg(wpa_s, MSG_DEBUG, "Abort an ongoing scan");
+		return wpa_drv_abort_scan(wpa_s, wpa_s->curr_scan_cookie);
+	}
+
+	wpa_dbg(wpa_s, MSG_DEBUG, "No ongoing scan/p2p-scan found to abort");
+	return -1;
+}
+
+
+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;
+
+	if (!cmd[0]) {
+		wpa_printf(MSG_DEBUG, "Clear sched scan plans");
+		os_free(wpa_s->sched_scan_plans);
+		wpa_s->sched_scan_plans = NULL;
+		wpa_s->sched_scan_plans_num = 0;
+		return 0;
+	}
+
+	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_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;
+}
+
+
+/**
+ * wpas_scan_reset_sched_scan - Reset sched_scan state
+ * @wpa_s: Pointer to wpa_supplicant data
+ *
+ * This function is used to cancel a running scheduled scan and to reset an
+ * internal scan state to continue with a regular scan on the following
+ * wpa_supplicant_req_scan() calls.
+ */
+void wpas_scan_reset_sched_scan(struct wpa_supplicant *wpa_s)
+{
+	wpa_s->normal_scans = 0;
+	if (wpa_s->sched_scanning) {
+		wpa_s->sched_scan_timed_out = 0;
+		wpa_s->prev_sched_ssid = NULL;
+		wpa_supplicant_cancel_sched_scan(wpa_s);
+	}
+}
+
+
+void wpas_scan_restart_sched_scan(struct wpa_supplicant *wpa_s)
+{
+	/* simulate timeout to restart the sched scan */
+	wpa_s->sched_scan_timed_out = 1;
+	wpa_s->prev_sched_ssid = NULL;
+	wpa_supplicant_cancel_sched_scan(wpa_s);
+}