# Test cases for Multi-AP # Copyright (c) 2018, The Linux Foundation # # This software may be distributed under the terms of the BSD license. # See README for more details. import hostapd from wpasupplicant import WpaSupplicant from utils import * def test_multi_ap_association(dev, apdev): """Multi-AP association in backhaul BSS""" run_multi_ap_association(dev, apdev, 1) dev[1].connect("multi-ap", psk="12345678", scan_freq="2412", wait_connect=False) ev = dev[1].wait_event(["CTRL-EVENT-DISCONNECTED", "CTRL-EVENT-CONNECTED", "CTRL-EVENT-ASSOC-REJECT"], timeout=5) dev[1].request("DISCONNECT") if ev is None: raise Exception("Connection result not reported") if "CTRL-EVENT-ASSOC-REJECT" not in ev: raise Exception("Association rejection not reported") if "status_code=12" not in ev: raise Exception("Unexpected association status code: " + ev) def test_multi_ap_association_shared_bss(dev, apdev): """Multi-AP association in backhaul BSS (with fronthaul BSS enabled)""" run_multi_ap_association(dev, apdev, 3) dev[1].connect("multi-ap", psk="12345678", scan_freq="2412") def test_multi_ap_backhaul_shared_bss(dev, apdev): """Multi-AP backhaul to backhaul+fronthaul BSS""" hapd = run_multi_ap_association(dev, apdev, 3, wait_connect=False) ev = hapd.wait_event(["WDS-STA-INTERFACE-ADDED"], timeout=10) if ev is None: raise Exception("No WDS-STA-INTERFACE-ADDED event seen") def run_multi_ap_association(dev, apdev, multi_ap, wait_connect=True): params = hostapd.wpa2_params(ssid="multi-ap", passphrase="12345678") if multi_ap: params["multi_ap"] = str(multi_ap) hapd = hostapd.add_ap(apdev[0], params) dev[0].connect("multi-ap", psk="12345678", scan_freq="2412", multi_ap_backhaul_sta="1", wait_connect=wait_connect) return hapd def test_multi_ap_backhaul_roam_with_bridge(dev, apdev): """Multi-AP backhaul BSS reassociation to another BSS with bridge""" br_ifname = 'sta-br0' ifname = 'wlan5' try: run_multi_ap_backhaul_roam_with_bridge(dev, apdev) finally: subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down']) subprocess.call(['brctl', 'delif', br_ifname, ifname]) subprocess.call(['brctl', 'delbr', br_ifname]) subprocess.call(['iw', ifname, 'set', '4addr', 'off']) def run_multi_ap_backhaul_roam_with_bridge(dev, apdev): br_ifname = 'sta-br0' ifname = 'wlan5' wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5') subprocess.call(['brctl', 'addbr', br_ifname]) subprocess.call(['brctl', 'setfd', br_ifname, '0']) subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up']) subprocess.call(['iw', ifname, 'set', '4addr', 'on']) subprocess.check_call(['brctl', 'addif', br_ifname, ifname]) wpas.interface_add(ifname, br_ifname=br_ifname) wpas.flush_scan_cache() params = hostapd.wpa2_params(ssid="multi-ap", passphrase="12345678") params["multi_ap"] = "1" hapd = hostapd.add_ap(apdev[0], params) wpas.connect("multi-ap", psk="12345678", scan_freq="2412", multi_ap_backhaul_sta="1") hapd2 = hostapd.add_ap(apdev[1], params) bssid2 = hapd2.own_addr() wpas.scan_for_bss(bssid2, freq="2412", force_scan=True) wpas.roam(bssid2) def test_multi_ap_disabled_on_ap(dev, apdev): """Multi-AP association attempt when disabled on AP""" run_multi_ap_association(dev, apdev, 0, wait_connect=False) ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED", "CTRL-EVENT-CONNECTED"], timeout=5) dev[0].request("DISCONNECT") if ev is None: raise Exception("Connection result not reported") if "CTRL-EVENT-DISCONNECTED" not in ev: raise Exception("Unexpected connection result") def test_multi_ap_fronthaul_on_ap(dev, apdev): """Multi-AP association attempt when only fronthaul BSS on AP""" run_multi_ap_association(dev, apdev, 2, wait_connect=False) ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED", "CTRL-EVENT-CONNECTED", "CTRL-EVENT-ASSOC-REJECT"], timeout=5) dev[0].request("DISCONNECT") if ev is None: raise Exception("Connection result not reported") if "CTRL-EVENT-DISCONNECTED" not in ev: raise Exception("Unexpected connection result") def remove_apdev(dev, ifname): hglobal = hostapd.HostapdGlobal() hglobal.remove(ifname) dev.cmd_execute(['iw', ifname, 'del']) def run_multi_ap_wps(dev, apdev, params, params_backhaul=None, add_apdev=False, run_csa=False, allow_csa_fail=False): """Helper for running Multi-AP WPS tests dev[0] does multi_ap WPS, dev[1] does normal WPS. apdev[0] is the fronthaul BSS. If there is a separate backhaul BSS, it must have been set up by the caller. params are the normal SSID parameters, they will be extended with the WPS parameters. multi_ap_bssid must be given if it is not equal to the fronthaul BSSID.""" wpas_apdev = None if params_backhaul: hapd_backhaul = hostapd.add_ap(apdev[1], params_backhaul) multi_ap_bssid = hapd_backhaul.own_addr() else: multi_ap_bssid = apdev[0]['bssid'] params.update({"wps_state": "2", "eap_server": "1"}) # WPS with multi-ap station dev[0] hapd = hostapd.add_ap(apdev[0], params) conf = hapd.request("GET_CONFIG").splitlines() if "ssid=" + params['ssid'] not in conf: raise Exception("GET_CONFIG did not show correct ssid entry") if "multi_ap" in params and \ "multi_ap=" + params["multi_ap"] not in conf: raise Exception("GET_CONFIG did not show correct multi_ap entry") if "multi_ap_backhaul_ssid" in params and \ "multi_ap_backhaul_ssid=" + params["multi_ap_backhaul_ssid"].strip('"') not in conf: raise Exception("GET_CONFIG did not show correct multi_ap_backhaul_ssid entry") if "wpa" in params and "multi_ap_backhaul_wpa_passphrase" in params and \ "multi_ap_backhaul_wpa_passphrase=" + params["multi_ap_backhaul_wpa_passphrase"] not in conf: raise Exception("GET_CONFIG did not show correct multi_ap_backhaul_wpa_passphrase entry") if "multi_ap_backhaul_wpa_psk" in params and \ "multi_ap_backhaul_wpa_psk=" + params["multi_ap_backhaul_wpa_psk"] not in conf: raise Exception("GET_CONFIG did not show correct multi_ap_backhaul_wpa_psk entry") hapd.request("WPS_PBC") if "PBC Status: Active" not in hapd.request("WPS_GET_STATUS"): raise Exception("PBC status not shown correctly") dev[0].request("WPS_PBC multi_ap=1") dev[0].wait_connected(timeout=20) status = dev[0].get_status() if status['wpa_state'] != 'COMPLETED' or status['bssid'] != multi_ap_bssid: raise Exception("Not fully connected") if status['ssid'] != params['multi_ap_backhaul_ssid'].strip('"'): raise Exception("Unexpected SSID %s != %s" % (status['ssid'], params["multi_ap_backhaul_ssid"])) if status['pairwise_cipher'] != 'CCMP': raise Exception("Unexpected encryption configuration %s" % status['pairwise_cipher']) if status['key_mgmt'] != 'WPA2-PSK': raise Exception("Unexpected key_mgmt") status = hapd.request("WPS_GET_STATUS") if "PBC Status: Disabled" not in status: raise Exception("PBC status not shown correctly") if "Last WPS result: Success" not in status: raise Exception("Last WPS result not shown correctly") if "Peer Address: " + dev[0].own_addr() not in status: raise Exception("Peer address not shown correctly") if len(dev[0].list_networks()) != 1: raise Exception("Unexpected number of network blocks") # WPS with non-Multi-AP station dev[1] hapd.request("WPS_PBC") if "PBC Status: Active" not in hapd.request("WPS_GET_STATUS"): raise Exception("PBC status not shown correctly") dev[1].request("WPS_PBC") dev[1].wait_connected(timeout=20) status = dev[1].get_status() if status['wpa_state'] != 'COMPLETED' or status['bssid'] != apdev[0]['bssid']: raise Exception("Not fully connected") if status['ssid'] != params["ssid"]: raise Exception("Unexpected SSID") # Fronthaul may be something else than WPA2-PSK so don't test it. status = hapd.request("WPS_GET_STATUS") if "PBC Status: Disabled" not in status: raise Exception("PBC status not shown correctly") if "Last WPS result: Success" not in status: raise Exception("Last WPS result not shown correctly") if "Peer Address: " + dev[1].own_addr() not in status: raise Exception("Peer address not shown correctly") if len(dev[1].list_networks()) != 1: raise Exception("Unexpected number of network blocks") try: # Add apdev to the same phy that dev[0] if add_apdev: wpas_apdev = {} wpas_apdev['ifname'] = dev[0].ifname + "_ap" status, buf = dev[0].cmd_execute(['iw', dev[0].ifname, 'interface', 'add', wpas_apdev['ifname'], 'type', 'managed']) if status != 0: raise Exception("iw interface add failed") wpas_hapd = hostapd.add_ap(wpas_apdev, params) if run_csa: if 'OK' not in hapd.request("CHAN_SWITCH 5 2462 ht"): raise Exception("chan switch request failed") ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=5) if not ev: raise Exception("chan switch failed") # now check station ev = dev[0].wait_event(["CTRL-EVENT-CHANNEL-SWITCH", "CTRL-EVENT-DISCONNECTED"], timeout=5) if not ev: raise Exception("sta - no chanswitch event") if "CTRL-EVENT-CHANNEL-SWITCH" not in ev and not allow_csa_fail: raise Exception("Received disconnection event instead of channel switch event") if add_apdev: remove_apdev(dev[0], wpas_apdev['ifname']) except: if wpas_apdev: remove_apdev(dev[0], wpas_apdev['ifname']) raise return hapd def test_multi_ap_wps_shared(dev, apdev): """WPS on shared fronthaul/backhaul AP""" ssid = "multi-ap-wps" passphrase = "12345678" params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase) params.update({"multi_ap": "3", "multi_ap_backhaul_ssid": '"%s"' % ssid, "multi_ap_backhaul_wpa_passphrase": passphrase}) hapd = run_multi_ap_wps(dev, apdev, params) # Verify WPS parameter update with Multi-AP if "OK" not in hapd.request("RELOAD"): raise Exception("hostapd RELOAD failed") dev[0].wait_disconnected() dev[0].request("REMOVE_NETWORK all") hapd.request("WPS_PBC") dev[0].request("WPS_PBC multi_ap=1") dev[0].wait_connected(timeout=20) def test_multi_ap_wps_shared_csa(dev, apdev): """WPS on shared fronthaul/backhaul AP, run CSA""" ssid = "multi-ap-wps-csa" passphrase = "12345678" params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase) params.update({"multi_ap": "3", "multi_ap_backhaul_ssid": '"%s"' % ssid, "multi_ap_backhaul_wpa_passphrase": passphrase}) run_multi_ap_wps(dev, apdev, params, run_csa=True) def test_multi_ap_wps_shared_apdev_csa(dev, apdev): """WPS on shared fronthaul/backhaul AP add apdev on same phy and run CSA""" ssid = "multi-ap-wps-apdev-csa" passphrase = "12345678" params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase) params.update({"multi_ap": "3", "multi_ap_backhaul_ssid": '"%s"' % ssid, "multi_ap_backhaul_wpa_passphrase": passphrase}) # This case is currently failing toc omplete CSA on the station interface. # For the time being, ignore that to avoid always failing tests. Full # validation can be enabled once the issue behind this is fixed. run_multi_ap_wps(dev, apdev, params, add_apdev=True, run_csa=True, allow_csa_fail=True) def test_multi_ap_wps_shared_psk(dev, apdev): """WPS on shared fronthaul/backhaul AP using PSK""" ssid = "multi-ap-wps" psk = "1234567890abcdef0123456789abcdef0123456789abcdef0123456789abcdef" params = hostapd.wpa2_params(ssid=ssid) params.update({"wpa_psk": psk, "multi_ap": "3", "multi_ap_backhaul_ssid": '"%s"' % ssid, "multi_ap_backhaul_wpa_psk": psk}) run_multi_ap_wps(dev, apdev, params) def test_multi_ap_wps_split(dev, apdev): """WPS on split fronthaul and backhaul AP""" backhaul_ssid = "multi-ap-backhaul-wps" backhaul_passphrase = "87654321" params = hostapd.wpa2_params(ssid="multi-ap-fronthaul-wps", passphrase="12345678") params.update({"multi_ap": "2", "multi_ap_backhaul_ssid": '"%s"' % backhaul_ssid, "multi_ap_backhaul_wpa_passphrase": backhaul_passphrase}) params_backhaul = hostapd.wpa2_params(ssid=backhaul_ssid, passphrase=backhaul_passphrase) params_backhaul.update({"multi_ap": "1"}) run_multi_ap_wps(dev, apdev, params, params_backhaul) def test_multi_ap_wps_split_psk(dev, apdev): """WPS on split fronthaul and backhaul AP""" backhaul_ssid = "multi-ap-backhaul-wps" backhaul_psk = "1234567890abcdef0123456789abcdef0123456789abcdef0123456789abcdef" params = hostapd.wpa2_params(ssid="multi-ap-fronthaul-wps", passphrase="12345678") params.update({"multi_ap": "2", "multi_ap_backhaul_ssid": '"%s"' % backhaul_ssid, "multi_ap_backhaul_wpa_psk": backhaul_psk}) params_backhaul = hostapd.wpa2_params(ssid=backhaul_ssid) params_backhaul.update({"multi_ap": "1", "wpa_psk": backhaul_psk}) run_multi_ap_wps(dev, apdev, params, params_backhaul) def test_multi_ap_wps_split_mixed(dev, apdev): """WPS on split fronthaul and backhaul AP with mixed-mode fronthaul""" skip_without_tkip(dev[0]) backhaul_ssid = "multi-ap-backhaul-wps" backhaul_passphrase = "87654321" params = hostapd.wpa_mixed_params(ssid="multi-ap-fronthaul-wps", passphrase="12345678") params.update({"multi_ap": "2", "multi_ap_backhaul_ssid": '"%s"' % backhaul_ssid, "multi_ap_backhaul_wpa_passphrase": backhaul_passphrase}) params_backhaul = hostapd.wpa2_params(ssid=backhaul_ssid, passphrase=backhaul_passphrase) params_backhaul.update({"multi_ap": "1"}) run_multi_ap_wps(dev, apdev, params, params_backhaul) def test_multi_ap_wps_split_open(dev, apdev): """WPS on split fronthaul and backhaul AP with open fronthaul""" backhaul_ssid = "multi-ap-backhaul-wps" backhaul_passphrase = "87654321" params = {"ssid": "multi-ap-wps-fronthaul", "multi_ap": "2", "multi_ap_backhaul_ssid": '"%s"' % backhaul_ssid, "multi_ap_backhaul_wpa_passphrase": backhaul_passphrase} params_backhaul = hostapd.wpa2_params(ssid=backhaul_ssid, passphrase=backhaul_passphrase) params_backhaul.update({"multi_ap": "1"}) run_multi_ap_wps(dev, apdev, params, params_backhaul) def test_multi_ap_wps_fail_non_multi_ap(dev, apdev): """Multi-AP WPS on non-WPS AP fails""" params = hostapd.wpa2_params(ssid="non-multi-ap-wps", passphrase="12345678") params.update({"wps_state": "2", "eap_server": "1"}) hapd = hostapd.add_ap(apdev[0], params) hapd.request("WPS_PBC") if "PBC Status: Active" not in hapd.request("WPS_GET_STATUS"): raise Exception("PBC status not shown correctly") dev[0].scan_for_bss(apdev[0]['bssid'], freq="2412") dev[0].request("WPS_PBC %s multi_ap=1" % apdev[0]['bssid']) # Since we will fail to associate and WPS doesn't even get started, there # isn't much we can do except wait for timeout. For PBC, it is not possible # to change the timeout from 2 minutes. Instead of waiting for the timeout, # just check that WPS doesn't finish within reasonable time. for i in range(2): ev = dev[0].wait_event(["WPS-SUCCESS", "WPS-FAIL", "CTRL-EVENT-DISCONNECTED"], timeout=10) if ev and "WPS-" in ev: raise Exception("WPS operation completed: " + ev) dev[0].request("WPS_CANCEL")