#!/usr/bin/env python3 # # Copyright 2020 - The Android Open Source Project # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import time from acts import signals from acts.controllers.access_point import setup_ap from acts.controllers.ap_lib import hostapd_constants from acts.controllers.ap_lib import hostapd_security from acts_contrib.test_utils.wifi.WifiBaseTest import WifiBaseTest from acts.utils import rand_ascii_str DISCONNECTED = "Disconnected" CONNECTION_STOPPED = "ConnectionStopped" CONNECTIONS_ENABLED = "ConnectionsEnabled" CONNECTIONS_DISABLED = "ConnectionsDisabled" WPA2 = "wpa2" UPDATE_TIMEOUT_SEC = 5 class StartStopClientConnectionsTest(WifiBaseTest): """ Tests that we see the expected behavior with enabling and disabling client connections Test Bed Requirement: * One or more Fuchsia devices * One Access Point """ def setup_class(self): super().setup_class() # Start an AP with a hidden network self.ssid = rand_ascii_str(hostapd_constants.AP_SSID_LENGTH_2G) self.access_point = self.access_points[0] self.password = rand_ascii_str( hostapd_constants.AP_PASSPHRASE_LENGTH_2G) self.security_type = WPA2 security = hostapd_security.Security(security_mode=self.security_type, password=self.password) self.access_point.stop_all_aps() # TODO(63719) use varying values for AP that shouldn't affect the test. setup_ap(self.access_point, 'whirlwind', hostapd_constants.AP_DEFAULT_CHANNEL_5G, self.ssid, security=security) if len(self.fuchsia_devices) < 1: raise EnvironmentError("No Fuchsia devices found.") for fd in self.fuchsia_devices: fd.configure_wlan(association_mechanism='policy', preserve_saved_networks=True) def setup_test(self): for fd in self.fuchsia_devices: if not fd.wlan_policy_controller.remove_all_networks(): raise EnvironmentError( "Failed to remove all networks in setup") def teardown_class(self): self.access_point.stop_all_aps() def connect_and_validate(self, fd, ssid, security_type, expected_response): """ Sends a connect request to the device and verifies we get a response without error. This does not validate that a connection will be attempted. This will fail the test if there is an error sending the connect request, or if we don't get the expected connect response.""" result_connect = fd.sl4f.wlan_policy_lib.wlanConnect( ssid, security_type) if result_connect.get("error") != None: self.log.error("Error occurred requesting a connection: %s" % result_connect.get("error")) raise EnvironmentError("Failed to send connect request") response = result_connect.get("result") if response != expected_response: self.log.error( "Incorrect connect request response. Expected: \"%s\", Actual: %s" % (expected_response, response)) raise signals.TestFailure( "Failed to get expected connect response") def await_state_update(self, fd, desired_state, timeout): """ This function polls the policy client state until it converges to the caller's desired state. Args: fd: A FuchsiaDevice desired_state: The expected client policy state. timeout: Number of seconds to wait for the policy state to become the desired_state. Returns: None assuming the desired state has been reached. Raises: TestFailure if the desired state is not reached by the timeout. """ start_time = time.time() curr_state = None while time.time() < start_time + timeout: fd.sl4f.wlan_policy_lib.wlanSetNewListener() curr_state = fd.sl4f.wlan_policy_lib.wlanGetUpdate() if curr_state.get("error"): self.log.error("Error occurred getting status update: %s" % curr_state.get("error")) raise EnvironmentError("Failed to get update") if curr_state.get("result") and curr_state.get( "result") == desired_state: return time.sleep(1) self.log.error( "Client state did not converge to the expected state in %s " "seconds. Expected update: %s Actual update: %s" % (timeout, desired_state, curr_state)) raise signals.TestFailure("Client policy layer is in unexpected state") def test_stop_client_connections_update(self): for fd in self.fuchsia_devices: if not fd.wlan_policy_controller.stop_client_connections(): raise EnvironmentError("Failed to stop client connecions") # Check that the most recent update says that the device is not # connected to anything and client connections are disabled expected_update = {"networks": [], "state": CONNECTIONS_DISABLED} self.await_state_update(fd, expected_update, UPDATE_TIMEOUT_SEC) def test_start_client_connections_update(self): for fd in self.fuchsia_devices: if not fd.wlan_policy_controller.start_client_connections(): raise EnvironmentError("Failed to start client connecions") # Check that the most recent update says that the device is not # connected to anything and client connections are disabled expected_update = {"networks": [], "state": CONNECTIONS_ENABLED} self.await_state_update(fd, expected_update, UPDATE_TIMEOUT_SEC) def test_stop_client_connections_rejects_connections(self): # Test that if we turn client connections off, our requests to connect # are rejected. for fd in self.fuchsia_devices: if not fd.wlan_policy_controller.stop_client_connections(): raise EnvironmentError("Failed to stop client connecions") # Save the network, otherwise connecting may fail because the # network is not saved instead of client connections being off if not fd.wlan_policy_controller.save_network( self.ssid, self.security_type, password=self.password): raise EnvironmentError("Failed to save network") expected_response = "RejectedIncompatibleMode" self.connect_and_validate(fd, self.ssid, self.security_type, expected_response) def test_start_stop_client_connections(self): # Test that if we turn client connections on the device will connect, # and if we turn of client connections the device will disconnect. for fd in self.fuchsia_devices: # Start client connections and check that we can if not fd.wlan_policy_controller.save_network( self.ssid, self.security_type, password=self.password): raise EnvironmentError("Failed to save network") if not fd.wlan_policy_controller.start_client_connections(): raise EnvironmentError("Failed to start client connections") expected_response = "Acknowledged" self.connect_and_validate(fd, self.ssid, self.security_type, expected_response) if not fd.wlan_policy_controller.wait_for_connect( self.ssid, self.security_type): raise signals.TestFailure( "Failed to connect after starting client connections") # Stop client connections again and check that we disconnect if not fd.wlan_policy_controller.stop_client_connections(): raise EnvironmentError("Failed to stop client connecions") if not fd.wlan_policy_controller.wait_for_disconnect( self.ssid, self.security_type, DISCONNECTED, CONNECTION_STOPPED): raise signals.TestFailure( "Failed to disconnect after client connections stopped")