33 static void wpa_bss_set_hessid(struct wpa_bss *bss)  in wpa_bss_set_hessid()  argument
36 	const u8 *ie = wpa_bss_get_ie(bss, WLAN_EID_INTERWORKING);  in wpa_bss_set_hessid()
38 		os_memset(bss->hessid, 0, ETH_ALEN);  in wpa_bss_set_hessid()
42 		os_memcpy(bss->hessid, ie + 3, ETH_ALEN);  in wpa_bss_set_hessid()
44 		os_memcpy(bss->hessid, ie + 5, ETH_ALEN);  in wpa_bss_set_hessid()
118 int wpa_bss_anqp_unshare_alloc(struct wpa_bss *bss)  in wpa_bss_anqp_unshare_alloc()  argument
122 	if (bss->anqp && bss->anqp->users > 1) {  in wpa_bss_anqp_unshare_alloc()
124 		anqp = wpa_bss_anqp_clone(bss->anqp);  in wpa_bss_anqp_unshare_alloc()
128 		bss->anqp->users--;  in wpa_bss_anqp_unshare_alloc()
129 		bss->anqp = anqp;  in wpa_bss_anqp_unshare_alloc()
133 	if (bss->anqp)  in wpa_bss_anqp_unshare_alloc()
137 	bss->anqp = wpa_bss_anqp_alloc();  in wpa_bss_anqp_unshare_alloc()
138 	return bss->anqp ? 0 : -1;  in wpa_bss_anqp_unshare_alloc()
205 	if (cwork->bss != old_bss)  in wpa_bss_update_pending_connect()
210 	cwork->bss = new_bss;  in wpa_bss_update_pending_connect()
216 static void wpa_bss_remove(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,  in wpa_bss_remove()  argument
222 			if (wpa_s->last_scan_res[i] == bss) {  in wpa_bss_remove()
232 	wpa_bss_update_pending_connect(wpa_s, bss, NULL);  in wpa_bss_remove()
233 	dl_list_del(&bss->list);  in wpa_bss_remove()
234 	dl_list_del(&bss->list_id);  in wpa_bss_remove()
237 		" SSID '%s' due to %s", bss->id, MAC2STR(bss->bssid),  in wpa_bss_remove()
238 		wpa_ssid_txt(bss->ssid, bss->ssid_len), reason);  in wpa_bss_remove()
239 	wpas_notify_bss_removed(wpa_s, bss->bssid, bss->id);  in wpa_bss_remove()
240 	wpa_bss_anqp_free(bss->anqp);  in wpa_bss_remove()
241 	os_free(bss);  in wpa_bss_remove()
256 	struct wpa_bss *bss;  in wpa_bss_get()  local
259 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_get()
260 		if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0 &&  in wpa_bss_get()
261 		    bss->ssid_len == ssid_len &&  in wpa_bss_get()
262 		    os_memcmp(bss->ssid, ssid, ssid_len) == 0)  in wpa_bss_get()
263 			return bss;  in wpa_bss_get()
306 static int wpa_bss_known(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)  in wpa_bss_known()  argument
313 		if (ssid->ssid_len == bss->ssid_len &&  in wpa_bss_known()
314 		    os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) == 0)  in wpa_bss_known()
322 static int wpa_bss_in_use(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)  in wpa_bss_in_use()  argument
324 	if (bss == wpa_s->current_bss)  in wpa_bss_in_use()
328 	    (bss->ssid_len != wpa_s->current_bss->ssid_len ||  in wpa_bss_in_use()
329 	     os_memcmp(bss->ssid, wpa_s->current_bss->ssid,  in wpa_bss_in_use()
330 		       bss->ssid_len) != 0))  in wpa_bss_in_use()
333 	return !is_zero_ether_addr(bss->bssid) &&  in wpa_bss_in_use()
334 		(os_memcmp(bss->bssid, wpa_s->bssid, ETH_ALEN) == 0 ||  in wpa_bss_in_use()
335 		 os_memcmp(bss->bssid, wpa_s->pending_bssid, ETH_ALEN) == 0);  in wpa_bss_in_use()
341 	struct wpa_bss *bss;  in wpa_bss_remove_oldest_unknown()  local
343 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_remove_oldest_unknown()
344 		if (!wpa_bss_known(wpa_s, bss)) {  in wpa_bss_remove_oldest_unknown()
345 			wpa_bss_remove(wpa_s, bss, __func__);  in wpa_bss_remove_oldest_unknown()
356 	struct wpa_bss *bss;  in wpa_bss_remove_oldest()  local
368 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_remove_oldest()
369 		if (!wpa_bss_in_use(wpa_s, bss)) {  in wpa_bss_remove_oldest()
370 			wpa_bss_remove(wpa_s, bss, __func__);  in wpa_bss_remove_oldest()
384 	struct wpa_bss *bss;  in wpa_bss_add()  local
386 	bss = os_zalloc(sizeof(*bss) + res->ie_len + res->beacon_ie_len);  in wpa_bss_add()
387 	if (bss == NULL)  in wpa_bss_add()
389 	bss->id = wpa_s->bss_next_id++;  in wpa_bss_add()
390 	bss->last_update_idx = wpa_s->bss_update_idx;  in wpa_bss_add()
391 	wpa_bss_copy_res(bss, res, fetch_time);  in wpa_bss_add()
392 	os_memcpy(bss->ssid, ssid, ssid_len);  in wpa_bss_add()
393 	bss->ssid_len = ssid_len;  in wpa_bss_add()
394 	bss->ie_len = res->ie_len;  in wpa_bss_add()
395 	bss->beacon_ie_len = res->beacon_ie_len;  in wpa_bss_add()
396 	os_memcpy(bss + 1, res + 1, res->ie_len + res->beacon_ie_len);  in wpa_bss_add()
397 	wpa_bss_set_hessid(bss);  in wpa_bss_add()
407 	dl_list_add_tail(&wpa_s->bss, &bss->list);  in wpa_bss_add()
408 	dl_list_add_tail(&wpa_s->bss_id, &bss->list_id);  in wpa_bss_add()
412 		bss->id, MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len),  in wpa_bss_add()
413 		bss->freq);  in wpa_bss_add()
414 	wpas_notify_bss_added(wpa_s, bss->bssid, bss->id);  in wpa_bss_add()
415 	return bss;  in wpa_bss_add()
516 			       const struct wpa_bss *bss)  in notify_bss_changes()  argument
519 		wpas_notify_bss_freq_changed(wpa_s, bss->id);  in notify_bss_changes()
522 		wpas_notify_bss_signal_changed(wpa_s, bss->id);  in notify_bss_changes()
525 		wpas_notify_bss_privacy_changed(wpa_s, bss->id);  in notify_bss_changes()
528 		wpas_notify_bss_mode_changed(wpa_s, bss->id);  in notify_bss_changes()
531 		wpas_notify_bss_wpaie_changed(wpa_s, bss->id);  in notify_bss_changes()
534 		wpas_notify_bss_rsnie_changed(wpa_s, bss->id);  in notify_bss_changes()
537 		wpas_notify_bss_wps_changed(wpa_s, bss->id);  in notify_bss_changes()
540 		wpas_notify_bss_ies_changed(wpa_s, bss->id);  in notify_bss_changes()
543 		wpas_notify_bss_rates_changed(wpa_s, bss->id);  in notify_bss_changes()
545 	wpas_notify_bss_seen(wpa_s, bss->id);  in notify_bss_changes()
550 wpa_bss_update(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,  in wpa_bss_update()  argument
555 	changes = wpa_bss_compare_res(bss, res);  in wpa_bss_update()
558 			   MAC2STR(bss->bssid), bss->freq, res->freq);  in wpa_bss_update()
559 	bss->scan_miss_count = 0;  in wpa_bss_update()
560 	bss->last_update_idx = wpa_s->bss_update_idx;  in wpa_bss_update()
561 	wpa_bss_copy_res(bss, res, fetch_time);  in wpa_bss_update()
563 	dl_list_del(&bss->list);  in wpa_bss_update()
565 	if (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&  in wpa_bss_update()
577 			MAC2STR(bss->bssid));  in wpa_bss_update()
580 	if (bss->ie_len + bss->beacon_ie_len >=  in wpa_bss_update()
582 		os_memcpy(bss + 1, res + 1, res->ie_len + res->beacon_ie_len);  in wpa_bss_update()
583 		bss->ie_len = res->ie_len;  in wpa_bss_update()
584 		bss->beacon_ie_len = res->beacon_ie_len;  in wpa_bss_update()
587 		struct dl_list *prev = bss->list_id.prev;  in wpa_bss_update()
588 		dl_list_del(&bss->list_id);  in wpa_bss_update()
589 		nbss = os_realloc(bss, sizeof(*bss) + res->ie_len +  in wpa_bss_update()
594 				if (wpa_s->last_scan_res[i] == bss) {  in wpa_bss_update()
599 			if (wpa_s->current_bss == bss)  in wpa_bss_update()
601 			wpa_bss_update_pending_connect(wpa_s, bss, nbss);  in wpa_bss_update()
602 			bss = nbss;  in wpa_bss_update()
603 			os_memcpy(bss + 1, res + 1,  in wpa_bss_update()
605 			bss->ie_len = res->ie_len;  in wpa_bss_update()
606 			bss->beacon_ie_len = res->beacon_ie_len;  in wpa_bss_update()
608 		dl_list_add(prev, &bss->list_id);  in wpa_bss_update()
611 		wpa_bss_set_hessid(bss);  in wpa_bss_update()
612 	dl_list_add_tail(&wpa_s->bss, &bss->list);  in wpa_bss_update()
614 	notify_bss_changes(wpa_s, changes, bss);  in wpa_bss_update()
616 	return bss;  in wpa_bss_update()
653 	struct wpa_bss *bss;  in wpa_bss_update_scan_res()  local
707 	bss = wpa_bss_get(wpa_s, res->bssid, ssid + 2, ssid[1]);  in wpa_bss_update_scan_res()
708 	if (bss == NULL)  in wpa_bss_update_scan_res()
709 		bss = wpa_bss_add(wpa_s, ssid + 2, ssid[1], res, fetch_time);  in wpa_bss_update_scan_res()
711 		bss = wpa_bss_update(wpa_s, bss, res, fetch_time);  in wpa_bss_update_scan_res()
715 				if (bss == wpa_s->last_scan_res[i]) {  in wpa_bss_update_scan_res()
723 	if (bss == NULL)  in wpa_bss_update_scan_res()
741 		wpa_s->last_scan_res[wpa_s->last_scan_res_used++] = bss;  in wpa_bss_update_scan_res()
745 static int wpa_bss_included_in_scan(const struct wpa_bss *bss,  in wpa_bss_included_in_scan()  argument
757 			if (bss->freq == info->freqs[i]) {  in wpa_bss_included_in_scan()
771 			    (s->ssid_len == bss->ssid_len &&  in wpa_bss_included_in_scan()
772 			     os_memcmp(s->ssid, bss->ssid, bss->ssid_len) ==  in wpa_bss_included_in_scan()
799 	struct wpa_bss *bss, *n;  in wpa_bss_update_end()  local
805 	dl_list_for_each_safe(bss, n, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_update_end()
806 		if (wpa_bss_in_use(wpa_s, bss))  in wpa_bss_update_end()
808 		if (!wpa_bss_included_in_scan(bss, info))  in wpa_bss_update_end()
810 		if (bss->last_update_idx < wpa_s->bss_update_idx)  in wpa_bss_update_end()
811 			bss->scan_miss_count++;  in wpa_bss_update_end()
812 		if (bss->scan_miss_count >=  in wpa_bss_update_end()
814 			wpa_bss_remove(wpa_s, bss, "no match in scan");  in wpa_bss_update_end()
832 	struct wpa_bss *bss, *n;  in wpa_bss_flush_by_age()  local
835 	if (dl_list_empty(&wpa_s->bss))  in wpa_bss_flush_by_age()
841 	dl_list_for_each_safe(bss, n, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_flush_by_age()
842 		if (wpa_bss_in_use(wpa_s, bss))  in wpa_bss_flush_by_age()
845 		if (os_reltime_before(&bss->last_update, &t)) {  in wpa_bss_flush_by_age()
846 			wpa_bss_remove(wpa_s, bss, __func__);  in wpa_bss_flush_by_age()
863 	dl_list_init(&wpa_s->bss);  in wpa_bss_init()
875 	struct wpa_bss *bss, *n;  in wpa_bss_flush()  local
879 	if (wpa_s->bss.next == NULL)  in wpa_bss_flush()
882 	dl_list_for_each_safe(bss, n, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_flush()
883 		if (wpa_bss_in_use(wpa_s, bss))  in wpa_bss_flush()
885 		wpa_bss_remove(wpa_s, bss, __func__);  in wpa_bss_flush()
909 	struct wpa_bss *bss;  in wpa_bss_get_bssid()  local
912 	dl_list_for_each_reverse(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_get_bssid()
913 		if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0)  in wpa_bss_get_bssid()
914 			return bss;  in wpa_bss_get_bssid()
934 	struct wpa_bss *bss, *found = NULL;  in wpa_bss_get_bssid_latest()  local
937 	dl_list_for_each_reverse(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_get_bssid_latest()
938 		if (os_memcmp(bss->bssid, bssid, ETH_ALEN) != 0)  in wpa_bss_get_bssid_latest()
941 		    os_reltime_before(&found->last_update, &bss->last_update))  in wpa_bss_get_bssid_latest()
942 			found = bss;  in wpa_bss_get_bssid_latest()
958 	struct wpa_bss *bss;  in wpa_bss_get_p2p_dev_addr()  local
959 	dl_list_for_each_reverse(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_get_p2p_dev_addr()
961 		if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,  in wpa_bss_get_p2p_dev_addr()
964 			return bss;  in wpa_bss_get_p2p_dev_addr()
979 	struct wpa_bss *bss;  in wpa_bss_get_id()  local
980 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {  in wpa_bss_get_id()
981 		if (bss->id == id)  in wpa_bss_get_id()
982 			return bss;  in wpa_bss_get_id()
1002 	struct wpa_bss *bss;  in wpa_bss_get_id_range()  local
1003 	dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {  in wpa_bss_get_id_range()
1004 		if (bss->id >= idf && bss->id <= idl)  in wpa_bss_get_id_range()
1005 			return bss;  in wpa_bss_get_id_range()
1020 const u8 * wpa_bss_get_ie(const struct wpa_bss *bss, u8 ie)  in wpa_bss_get_ie()  argument
1022 	return get_ie((const u8 *) (bss + 1), bss->ie_len, ie);  in wpa_bss_get_ie()
1035 const u8 * wpa_bss_get_vendor_ie(const struct wpa_bss *bss, u32 vendor_type)  in wpa_bss_get_vendor_ie()  argument
1039 	pos = (const u8 *) (bss + 1);  in wpa_bss_get_vendor_ie()
1040 	end = pos + bss->ie_len;  in wpa_bss_get_vendor_ie()
1067 const u8 * wpa_bss_get_vendor_ie_beacon(const struct wpa_bss *bss,  in wpa_bss_get_vendor_ie_beacon()  argument
1072 	if (bss->beacon_ie_len == 0)  in wpa_bss_get_vendor_ie_beacon()
1075 	pos = (const u8 *) (bss + 1);  in wpa_bss_get_vendor_ie_beacon()
1076 	pos += bss->ie_len;  in wpa_bss_get_vendor_ie_beacon()
1077 	end = pos + bss->beacon_ie_len;  in wpa_bss_get_vendor_ie_beacon()
1102 struct wpabuf * wpa_bss_get_vendor_ie_multi(const struct wpa_bss *bss,  in wpa_bss_get_vendor_ie_multi()  argument
1108 	buf = wpabuf_alloc(bss->ie_len);  in wpa_bss_get_vendor_ie_multi()
1112 	pos = (const u8 *) (bss + 1);  in wpa_bss_get_vendor_ie_multi()
1113 	end = pos + bss->ie_len;  in wpa_bss_get_vendor_ie_multi()
1146 struct wpabuf * wpa_bss_get_vendor_ie_multi_beacon(const struct wpa_bss *bss,  in wpa_bss_get_vendor_ie_multi_beacon()  argument
1152 	buf = wpabuf_alloc(bss->beacon_ie_len);  in wpa_bss_get_vendor_ie_multi_beacon()
1156 	pos = (const u8 *) (bss + 1);  in wpa_bss_get_vendor_ie_multi_beacon()
1157 	pos += bss->ie_len;  in wpa_bss_get_vendor_ie_multi_beacon()
1158 	end = pos + bss->beacon_ie_len;  in wpa_bss_get_vendor_ie_multi_beacon()
1183 int wpa_bss_get_max_rate(const struct wpa_bss *bss)  in wpa_bss_get_max_rate()  argument
1189 	ie = wpa_bss_get_ie(bss, WLAN_EID_SUPP_RATES);  in wpa_bss_get_max_rate()
1195 	ie = wpa_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);  in wpa_bss_get_max_rate()
1214 int wpa_bss_get_bit_rates(const struct wpa_bss *bss, u8 **rates)  in wpa_bss_get_bit_rates()  argument
1221 	ie = wpa_bss_get_ie(bss, WLAN_EID_SUPP_RATES);  in wpa_bss_get_bit_rates()
1222 	ie2 = wpa_bss_get_ie(bss, WLAN_EID_EXT_SUPP_RATES);  in wpa_bss_get_bit_rates()