WifiStateMachineTest.java revision 8ba794562167643688ee38352f98345403fa22c8 
1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.server.wifi;
18
19import static org.junit.Assert.assertEquals;
20import static org.junit.Assert.assertFalse;
21import static org.junit.Assert.assertTrue;
22import static org.mockito.Mockito.any;
23import static org.mockito.Mockito.anyBoolean;
24import static org.mockito.Mockito.anyInt;
25import static org.mockito.Mockito.anyObject;
26import static org.mockito.Mockito.anyString;
27import static org.mockito.Mockito.eq;
28import static org.mockito.Mockito.mock;
29import static org.mockito.Mockito.never;
30import static org.mockito.Mockito.verify;
31import static org.mockito.Mockito.when;
32import static org.mockito.Mockito.withSettings;
33
34import android.content.ContentResolver;
35import android.content.Context;
36import android.content.pm.PackageManager;
37import android.content.pm.UserInfo;
38import android.content.res.Resources;
39import android.net.ConnectivityManager;
40import android.net.DhcpResults;
41import android.net.LinkProperties;
42import android.net.dhcp.DhcpClient;
43import android.net.ip.IpManager;
44import android.net.wifi.ScanResult;
45import android.net.wifi.SupplicantState;
46import android.net.wifi.WifiConfiguration;
47import android.net.wifi.WifiManager;
48import android.net.wifi.WifiScanner;
49import android.net.wifi.WifiSsid;
50import android.net.wifi.p2p.IWifiP2pManager;
51import android.os.BatteryStats;
52import android.os.Binder;
53import android.os.Handler;
54import android.os.HandlerThread;
55import android.os.IBinder;
56import android.os.IInterface;
57import android.os.INetworkManagementService;
58import android.os.IPowerManager;
59import android.os.Looper;
60import android.os.Message;
61import android.os.Messenger;
62import android.os.PowerManager;
63import android.os.UserHandle;
64import android.os.UserManager;
65import android.provider.Settings;
66import android.security.KeyStore;
67import android.telephony.TelephonyManager;
68import android.test.suitebuilder.annotation.SmallTest;
69import android.util.Base64;
70import android.util.Log;
71
72import com.android.internal.R;
73import com.android.internal.app.IBatteryStats;
74import com.android.internal.util.AsyncChannel;
75import com.android.internal.util.IState;
76import com.android.internal.util.StateMachine;
77import com.android.server.wifi.MockAnswerUtil.AnswerWithArguments;
78import com.android.server.wifi.hotspot2.NetworkDetail;
79import com.android.server.wifi.hotspot2.Utils;
80import com.android.server.wifi.p2p.WifiP2pServiceImpl;
81
82import org.junit.After;
83import org.junit.Before;
84import org.junit.Test;
85import org.mockito.ArgumentCaptor;
86import org.mockito.Mock;
87import org.mockito.MockitoAnnotations;
88
89import java.io.ByteArrayOutputStream;
90import java.io.PrintWriter;
91import java.lang.reflect.Field;
92import java.lang.reflect.InvocationTargetException;
93import java.lang.reflect.Method;
94import java.util.ArrayList;
95import java.util.Arrays;
96import java.util.HashMap;
97import java.util.HashSet;
98import java.util.List;
99import java.util.Map;
100import java.util.Set;
101
102/**
103 * Unit tests for {@link com.android.server.wifi.WifiStateMachine}.
104 */
105@SmallTest
106public class WifiStateMachineTest {
107    public static final String TAG = "WifiStateMachineTest";
108
109    private static final int MANAGED_PROFILE_UID = 1100000;
110    private static final int OTHER_USER_UID = 1200000;
111
112    private long mBinderToken;
113
114    private static <T> T mockWithInterfaces(Class<T> class1, Class<?>... interfaces) {
115        return mock(class1, withSettings().extraInterfaces(interfaces));
116    }
117
118    private static <T, I> IBinder mockService(Class<T> class1, Class<I> iface) {
119        T tImpl = mockWithInterfaces(class1, iface);
120        IBinder binder = mock(IBinder.class);
121        when(((IInterface) tImpl).asBinder()).thenReturn(binder);
122        when(binder.queryLocalInterface(iface.getCanonicalName()))
123                .thenReturn((IInterface) tImpl);
124        return binder;
125    }
126
127    private void enableDebugLogs() {
128        mWsm.enableVerboseLogging(1);
129    }
130
131    private class TestIpManager extends IpManager {
132        TestIpManager(Context context, String ifname, IpManager.Callback callback) {
133            // Call dependency-injection superclass constructor.
134            super(context, ifname, callback, mock(INetworkManagementService.class));
135        }
136
137        @Override
138        public void startProvisioning(IpManager.ProvisioningConfiguration config) {}
139
140        @Override
141        public void stop() {}
142
143        @Override
144        public void confirmConfiguration() {}
145
146        void injectDhcpSuccess(DhcpResults dhcpResults) {
147            mCallback.onNewDhcpResults(dhcpResults);
148            mCallback.onProvisioningSuccess(new LinkProperties());
149        }
150
151        void injectDhcpFailure() {
152            mCallback.onNewDhcpResults(null);
153            mCallback.onProvisioningFailure(new LinkProperties());
154        }
155    }
156
157    private FrameworkFacade getFrameworkFacade() throws Exception {
158        FrameworkFacade facade = mock(FrameworkFacade.class);
159
160        when(facade.makeBaseLogger()).thenReturn(mock(BaseWifiLogger.class));
161        when(facade.getService(Context.NETWORKMANAGEMENT_SERVICE)).thenReturn(
162                mockWithInterfaces(IBinder.class, INetworkManagementService.class));
163
164        IBinder p2pBinder = mockService(WifiP2pServiceImpl.class, IWifiP2pManager.class);
165        when(facade.getService(Context.WIFI_P2P_SERVICE)).thenReturn(p2pBinder);
166
167        WifiP2pServiceImpl p2pm = (WifiP2pServiceImpl) p2pBinder.queryLocalInterface(
168                IWifiP2pManager.class.getCanonicalName());
169
170        final Object sync = new Object();
171        synchronized (sync) {
172            mP2pThread = new HandlerThread("WifiP2pMockThread") {
173                @Override
174                protected void onLooperPrepared() {
175                    synchronized (sync) {
176                        sync.notifyAll();
177                    }
178                }
179            };
180
181            mP2pThread.start();
182            sync.wait();
183        }
184
185        Handler handler = new Handler(mP2pThread.getLooper());
186        when(p2pm.getP2pStateMachineMessenger()).thenReturn(new Messenger(handler));
187
188        IBinder batteryStatsBinder = mockService(BatteryStats.class, IBatteryStats.class);
189        when(facade.getService(BatteryStats.SERVICE_NAME)).thenReturn(batteryStatsBinder);
190
191        when(facade.makeIpManager(any(Context.class), anyString(), any(IpManager.Callback.class)))
192                .then(new AnswerWithArguments() {
193                    public IpManager answer(
194                            Context context, String ifname, IpManager.Callback callback) {
195                        mTestIpManager = new TestIpManager(context, ifname, callback);
196                        return mTestIpManager;
197                    }
198                });
199
200        when(facade.checkUidPermission(eq(android.Manifest.permission.OVERRIDE_WIFI_CONFIG),
201                anyInt())).thenReturn(PackageManager.PERMISSION_GRANTED);
202
203        when(facade.makeWifiConfigManager(any(Context.class),  any(WifiStateMachine.class),
204                any(WifiNative.class), any(FrameworkFacade.class), any(Clock.class),
205                any(UserManager.class), any(KeyStore.class))).then(new AnswerWithArguments() {
206            public WifiConfigManager answer(Context context, WifiStateMachine wifiStateMachine,
207                    WifiNative wifiNative, FrameworkFacade frameworkFacade, Clock clock,
208                    UserManager userManager, KeyStore keyStore){
209                mWifiConfigManager = new WifiConfigManager(context, wifiStateMachine, wifiNative,
210                        frameworkFacade, clock, userManager, keyStore);
211                return mWifiConfigManager;
212            }
213        });
214        return facade;
215    }
216
217    private Context getContext() throws Exception {
218        PackageManager pkgMgr = mock(PackageManager.class);
219        when(pkgMgr.hasSystemFeature(PackageManager.FEATURE_WIFI_DIRECT)).thenReturn(true);
220
221        Context context = mock(Context.class);
222        when(context.getPackageManager()).thenReturn(pkgMgr);
223        when(context.getContentResolver()).thenReturn(mock(ContentResolver.class));
224
225        MockResources resources = new com.android.server.wifi.MockResources();
226        when(context.getResources()).thenReturn(resources);
227
228        ContentResolver cr = mock(ContentResolver.class);
229        when(context.getContentResolver()).thenReturn(cr);
230
231        when(context.getSystemService(Context.POWER_SERVICE)).thenReturn(
232                new PowerManager(context, mock(IPowerManager.class), new Handler()));
233
234        mAlarmManager = new MockAlarmManager();
235        when(context.getSystemService(Context.ALARM_SERVICE)).thenReturn(
236                mAlarmManager.getAlarmManager());
237
238        when(context.getSystemService(Context.CONNECTIVITY_SERVICE)).thenReturn(
239                mock(ConnectivityManager.class));
240
241        when(context.getSystemService(Context.WIFI_SCANNING_SERVICE)).thenReturn(mWifiScanner);
242
243        return context;
244    }
245
246    private Resources getMockResources() {
247        MockResources resources = new MockResources();
248        resources.setBoolean(R.bool.config_wifi_enable_wifi_firmware_debugging, false);
249        return resources;
250    }
251
252    private IState getCurrentState() throws
253            NoSuchMethodException, InvocationTargetException, IllegalAccessException {
254        Method method = StateMachine.class.getDeclaredMethod("getCurrentState");
255        method.setAccessible(true);
256        return (IState) method.invoke(mWsm);
257    }
258
259    private static HandlerThread getWsmHandlerThread(WifiStateMachine wsm) throws
260            NoSuchFieldException, InvocationTargetException, IllegalAccessException {
261        Field field = StateMachine.class.getDeclaredField("mSmThread");
262        field.setAccessible(true);
263        return (HandlerThread) field.get(wsm);
264    }
265
266    private static void stopLooper(final Looper looper) throws Exception {
267        new Handler(looper).post(new Runnable() {
268            @Override
269            public void run() {
270                looper.quitSafely();
271            }
272        });
273    }
274
275    private void dumpState() {
276        ByteArrayOutputStream stream = new ByteArrayOutputStream();
277        PrintWriter writer = new PrintWriter(stream);
278        mWsm.dump(null, writer, null);
279        writer.flush();
280        Log.d(TAG, "WifiStateMachine state -" + stream.toString());
281    }
282
283    private static ScanDetail getGoogleGuestScanDetail(int rssi) {
284        ScanResult.InformationElement ie[] = new ScanResult.InformationElement[1];
285        ie[0] = ScanResults.generateSsidIe(sSSID);
286        NetworkDetail nd = new NetworkDetail(sBSSID, ie, new ArrayList<String>(), sFreq);
287        ScanDetail detail = new ScanDetail(nd, sWifiSsid, sBSSID, "", rssi, sFreq,
288                Long.MAX_VALUE, /* needed so that scan results aren't rejected because
289                                   there older than scan start */
290                ie, new ArrayList<String>());
291        return detail;
292    }
293
294    private ArrayList<ScanDetail> getMockScanResults() {
295        ScanResults sr = ScanResults.create(0, 2412, 2437, 2462, 5180, 5220, 5745, 5825);
296        ArrayList<ScanDetail> list = sr.getScanDetailArrayList();
297
298        int rssi = -65;
299        list.add(getGoogleGuestScanDetail(rssi));
300        return list;
301    }
302
303    static final String   sSSID = "\"GoogleGuest\"";
304    static final WifiSsid sWifiSsid = WifiSsid.createFromAsciiEncoded(sSSID);
305    static final String   sHexSSID = sWifiSsid.getHexString().replace("0x", "").replace("22", "");
306    static final String   sBSSID = "01:02:03:04:05:06";
307    static final int      sFreq = 2437;
308
309    WifiStateMachine mWsm;
310    HandlerThread mWsmThread;
311    HandlerThread mP2pThread;
312    HandlerThread mSyncThread;
313    AsyncChannel  mWsmAsyncChannel;
314    MockAlarmManager mAlarmManager;
315    MockWifiMonitor mWifiMonitor;
316    TestIpManager mTestIpManager;
317    MockLooper mLooper;
318    WifiConfigManager mWifiConfigManager;
319
320    @Mock WifiNative mWifiNative;
321    @Mock WifiScanner mWifiScanner;
322    @Mock SupplicantStateTracker mSupplicantStateTracker;
323    @Mock WifiMetrics mWifiMetrics;
324    @Mock UserManager mUserManager;
325    @Mock WifiApConfigStore mApConfigStore;
326    @Mock BackupManagerProxy mBackupManagerProxy;
327    @Mock WifiCountryCode mCountryCode;
328
329    public WifiStateMachineTest() throws Exception {
330    }
331
332    @Before
333    public void setUp() throws Exception {
334        Log.d(TAG, "Setting up ...");
335
336        // Ensure looper exists
337        mLooper = new MockLooper();
338
339        MockitoAnnotations.initMocks(this);
340
341        /** uncomment this to enable logs from WifiStateMachines */
342        // enableDebugLogs();
343
344        TestUtil.installWlanWifiNative(mWifiNative);
345        mWifiMonitor = new MockWifiMonitor();
346        mWifiMetrics = mock(WifiMetrics.class);
347        WifiInjector wifiInjector = mock(WifiInjector.class);
348        when(wifiInjector.getWifiMetrics()).thenReturn(mWifiMetrics);
349        FrameworkFacade factory = getFrameworkFacade();
350        Context context = getContext();
351
352        Resources resources = getMockResources();
353        when(context.getResources()).thenReturn(resources);
354
355        when(factory.getIntegerSetting(context,
356                Settings.Global.WIFI_FREQUENCY_BAND,
357                WifiManager.WIFI_FREQUENCY_BAND_AUTO)).thenReturn(
358                WifiManager.WIFI_FREQUENCY_BAND_AUTO);
359
360        when(factory.makeApConfigStore(eq(context), eq(mBackupManagerProxy)))
361                .thenReturn(mApConfigStore);
362
363        when(factory.makeSupplicantStateTracker(
364                any(Context.class), any(WifiConfigManager.class),
365                any(Handler.class))).thenReturn(mSupplicantStateTracker);
366
367        when(mUserManager.getProfileParent(11))
368                .thenReturn(new UserInfo(UserHandle.USER_SYSTEM, "owner", 0));
369        when(mUserManager.getProfiles(UserHandle.USER_SYSTEM)).thenReturn(Arrays.asList(
370                new UserInfo(UserHandle.USER_SYSTEM, "owner", 0),
371                new UserInfo(11, "managed profile", 0)));
372
373        mWsm = new WifiStateMachine(context, factory, mLooper.getLooper(),
374            mUserManager, wifiInjector, mBackupManagerProxy, mCountryCode);
375        mWsmThread = getWsmHandlerThread(mWsm);
376
377        final AsyncChannel channel = new AsyncChannel();
378        Handler handler = new Handler(mLooper.getLooper()) {
379            @Override
380            public void handleMessage(Message msg) {
381                switch (msg.what) {
382                    case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED:
383                        if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) {
384                            mWsmAsyncChannel = channel;
385                        } else {
386                            Log.d(TAG, "Failed to connect Command channel " + this);
387                        }
388                        break;
389                    case AsyncChannel.CMD_CHANNEL_DISCONNECTED:
390                        Log.d(TAG, "Command channel disconnected" + this);
391                        break;
392                }
393            }
394        };
395
396        channel.connect(context, handler, mWsm.getMessenger());
397        mLooper.dispatchAll();
398        /* Now channel is supposed to be connected */
399
400        mBinderToken = Binder.clearCallingIdentity();
401    }
402
403    @After
404    public void cleanUp() throws Exception {
405        Binder.restoreCallingIdentity(mBinderToken);
406
407        if (mSyncThread != null) stopLooper(mSyncThread.getLooper());
408        if (mWsmThread != null) stopLooper(mWsmThread.getLooper());
409        if (mP2pThread != null) stopLooper(mP2pThread.getLooper());
410
411        mWsmThread = null;
412        mP2pThread = null;
413        mSyncThread = null;
414        mWsmAsyncChannel = null;
415        mWsm = null;
416    }
417
418    @Test
419    public void createNew() throws Exception {
420        assertEquals("InitialState", getCurrentState().getName());
421
422        mWsm.sendMessage(WifiStateMachine.CMD_BOOT_COMPLETED);
423        mLooper.dispatchAll();
424        assertEquals("InitialState", getCurrentState().getName());
425    }
426
427    @Test
428    public void loadComponents() throws Exception {
429        when(mWifiNative.loadDriver()).thenReturn(true);
430        when(mWifiNative.startHal()).thenReturn(true);
431        when(mWifiNative.startSupplicant(anyBoolean())).thenReturn(true);
432        mWsm.setSupplicantRunning(true);
433        mLooper.dispatchAll();
434
435        assertEquals("SupplicantStartingState", getCurrentState().getName());
436
437        when(mWifiNative.setBand(anyInt())).thenReturn(true);
438        when(mWifiNative.setDeviceName(anyString())).thenReturn(true);
439        when(mWifiNative.setManufacturer(anyString())).thenReturn(true);
440        when(mWifiNative.setModelName(anyString())).thenReturn(true);
441        when(mWifiNative.setModelNumber(anyString())).thenReturn(true);
442        when(mWifiNative.setSerialNumber(anyString())).thenReturn(true);
443        when(mWifiNative.setConfigMethods(anyString())).thenReturn(true);
444        when(mWifiNative.setDeviceType(anyString())).thenReturn(true);
445        when(mWifiNative.setSerialNumber(anyString())).thenReturn(true);
446        when(mWifiNative.setScanningMacOui(any(byte[].class))).thenReturn(true);
447
448        mWsm.sendMessage(WifiMonitor.SUP_CONNECTION_EVENT);
449        mLooper.dispatchAll();
450
451        assertEquals("DisconnectedState", getCurrentState().getName());
452    }
453
454    @Test
455    public void loadComponentsFailure() throws Exception {
456        when(mWifiNative.loadDriver()).thenReturn(false);
457        when(mWifiNative.startHal()).thenReturn(false);
458        when(mWifiNative.startSupplicant(anyBoolean())).thenReturn(false);
459
460        mWsm.setSupplicantRunning(true);
461        mLooper.dispatchAll();
462        assertEquals("InitialState", getCurrentState().getName());
463
464        when(mWifiNative.loadDriver()).thenReturn(true);
465        mWsm.setSupplicantRunning(true);
466        mLooper.dispatchAll();
467        assertEquals("InitialState", getCurrentState().getName());
468
469        when(mWifiNative.startHal()).thenReturn(true);
470        mWsm.setSupplicantRunning(true);
471        mLooper.dispatchAll();
472        assertEquals("InitialState", getCurrentState().getName());
473    }
474
475    private void addNetworkAndVerifySuccess() throws Exception {
476        addNetworkAndVerifySuccess(false);
477    }
478
479    private void addNetworkAndVerifySuccess(boolean isHidden) throws Exception {
480        loadComponents();
481
482        final HashMap<String, String> nameToValue = new HashMap<String, String>();
483
484        when(mWifiNative.addNetwork()).thenReturn(0);
485        when(mWifiNative.setNetworkVariable(anyInt(), anyString(), anyString()))
486                .then(new AnswerWithArguments() {
487                    public boolean answer(int netId, String name, String value) {
488                        if (netId != 0) {
489                            Log.d(TAG, "Can't set var " + name + " for " + netId);
490                            return false;
491                        }
492
493                        Log.d(TAG, "Setting var " + name + " to " + value + " for " + netId);
494                        nameToValue.put(name, value);
495                        return true;
496                    }
497                });
498
499        when(mWifiNative.setNetworkExtra(anyInt(), anyString(), (Map<String, String>) anyObject()))
500                .then(new AnswerWithArguments() {
501                    public boolean answer(int netId, String name, Map<String, String> values) {
502                        if (netId != 0) {
503                            Log.d(TAG, "Can't set extra " + name + " for " + netId);
504                            return false;
505                        }
506
507                        Log.d(TAG, "Setting extra for " + netId);
508                        return true;
509                    }
510                });
511
512        when(mWifiNative.getNetworkVariable(anyInt(), anyString()))
513                .then(new AnswerWithArguments() {
514                    public String answer(int netId, String name) throws Throwable {
515                        if (netId != 0) {
516                            Log.d(TAG, "Can't find var " + name + " for " + netId);
517                            return null;
518                        }
519                        String value = nameToValue.get(name);
520                        if (value != null) {
521                            Log.d(TAG, "Returning var " + name + " to " + value + " for " + netId);
522                        } else {
523                            Log.d(TAG, "Can't find var " + name + " for " + netId);
524                        }
525                        return value;
526                    }
527                });
528
529        WifiConfiguration config = new WifiConfiguration();
530        config.SSID = sSSID;
531        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
532        config.hiddenSSID = isHidden;
533        mLooper.startAutoDispatch();
534        mWsm.syncAddOrUpdateNetwork(mWsmAsyncChannel, config);
535        mLooper.stopAutoDispatch();
536
537        verify(mWifiNative).addNetwork();
538        verify(mWifiNative).setNetworkVariable(0, "ssid", sHexSSID);
539        if (isHidden) {
540            verify(mWifiNative).setNetworkVariable(0, "scan_ssid", Integer.toString(1));
541        }
542
543        mLooper.startAutoDispatch();
544        List<WifiConfiguration> configs = mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel);
545        mLooper.stopAutoDispatch();
546        assertEquals(1, configs.size());
547
548        WifiConfiguration config2 = configs.get(0);
549        assertEquals("\"GoogleGuest\"", config2.SSID);
550        assertTrue(config2.allowedKeyManagement.get(WifiConfiguration.KeyMgmt.NONE));
551    }
552
553    private void addNetworkAndVerifyFailure() throws Exception {
554        loadComponents();
555
556        final WifiConfiguration config = new WifiConfiguration();
557        config.SSID = sSSID;
558        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
559
560        mLooper.startAutoDispatch();
561        mWsm.syncAddOrUpdateNetwork(mWsmAsyncChannel, config);
562        mLooper.stopAutoDispatch();
563
564        verify(mWifiNative, never()).addNetwork();
565        verify(mWifiNative, never()).setNetworkVariable(anyInt(), anyString(), anyString());
566
567        mLooper.startAutoDispatch();
568        assertTrue(mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel).isEmpty());
569        mLooper.stopAutoDispatch();
570    }
571
572    /**
573     * Verifies that the current foreground user is allowed to add a network.
574     */
575    @Test
576    public void addNetworkAsCurrentUser() throws Exception {
577        addNetworkAndVerifySuccess();
578    }
579
580    /**
581     * Verifies that a managed profile of the current foreground user is allowed to add a network.
582     */
583    @Test
584    public void addNetworkAsCurrentUsersManagedProfile() throws Exception {
585        BinderUtil.setUid(MANAGED_PROFILE_UID);
586        addNetworkAndVerifySuccess();
587    }
588
589    /**
590     * Verifies that a background user is not allowed to add a network.
591     */
592    @Test
593    public void addNetworkAsOtherUser() throws Exception {
594        BinderUtil.setUid(OTHER_USER_UID);
595        addNetworkAndVerifyFailure();
596    }
597
598    private void removeNetworkAndVerifySuccess() throws Exception {
599        when(mWifiNative.removeNetwork(0)).thenReturn(true);
600        mLooper.startAutoDispatch();
601        assertTrue(mWsm.syncRemoveNetwork(mWsmAsyncChannel, 0));
602        mLooper.stopAutoDispatch();
603
604        mLooper.startAutoDispatch();
605        assertTrue(mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel).isEmpty());
606        mLooper.stopAutoDispatch();
607    }
608
609    private void removeNetworkAndVerifyFailure() throws Exception {
610        mLooper.startAutoDispatch();
611        assertFalse(mWsm.syncRemoveNetwork(mWsmAsyncChannel, 0));
612        mLooper.stopAutoDispatch();
613
614        mLooper.startAutoDispatch();
615        assertEquals(1, mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel).size());
616        mLooper.stopAutoDispatch();
617        verify(mWifiNative, never()).removeNetwork(anyInt());
618    }
619
620    /**
621     * Verifies that the current foreground user is allowed to remove a network.
622     */
623    @Test
624    public void removeNetworkAsCurrentUser() throws Exception {
625        addNetworkAndVerifySuccess();
626        removeNetworkAndVerifySuccess();
627    }
628
629    /**
630     * Verifies that a managed profile of the current foreground user is allowed to remove a
631     * network.
632     */
633    @Test
634    public void removeNetworkAsCurrentUsersManagedProfile() throws Exception {
635        addNetworkAndVerifySuccess();
636        BinderUtil.setUid(MANAGED_PROFILE_UID);
637        removeNetworkAndVerifySuccess();
638    }
639
640    /**
641     * Verifies that a background user is not allowed to remove a network.
642     */
643    @Test
644    public void removeNetworkAsOtherUser() throws Exception {
645        addNetworkAndVerifySuccess();
646        BinderUtil.setUid(OTHER_USER_UID);
647        removeNetworkAndVerifyFailure();
648    }
649
650    private void enableNetworkAndVerifySuccess() throws Exception {
651        when(mWifiNative.selectNetwork(0)).thenReturn(true);
652
653        mLooper.startAutoDispatch();
654        assertTrue(mWsm.syncEnableNetwork(mWsmAsyncChannel, 0, true));
655        mLooper.stopAutoDispatch();
656
657        verify(mWifiNative).selectNetwork(0);
658    }
659
660    private void enableNetworkAndVerifyFailure() throws Exception {
661        mLooper.startAutoDispatch();
662        assertFalse(mWsm.syncEnableNetwork(mWsmAsyncChannel, 0, true));
663        mLooper.stopAutoDispatch();
664
665        verify(mWifiNative, never()).selectNetwork(anyInt());
666    }
667
668    /**
669     * Verifies that the current foreground user is allowed to enable a network.
670     */
671    @Test
672    public void enableNetworkAsCurrentUser() throws Exception {
673        addNetworkAndVerifySuccess();
674        enableNetworkAndVerifySuccess();
675    }
676
677    /**
678     * Verifies that a managed profile of the current foreground user is allowed to enable a
679     * network.
680     */
681    @Test
682    public void enableNetworkAsCurrentUsersManagedProfile() throws Exception {
683        addNetworkAndVerifySuccess();
684        BinderUtil.setUid(MANAGED_PROFILE_UID);
685        enableNetworkAndVerifySuccess();
686    }
687
688    /**
689     * Verifies that a background user is not allowed to enable a network.
690     */
691    @Test
692    public void enableNetworkAsOtherUser() throws Exception {
693        addNetworkAndVerifySuccess();
694        BinderUtil.setUid(OTHER_USER_UID);
695        enableNetworkAndVerifyFailure();
696    }
697
698    private void forgetNetworkAndVerifySuccess() throws Exception {
699        when(mWifiNative.removeNetwork(0)).thenReturn(true);
700        mLooper.startAutoDispatch();
701        final Message result =
702                mWsmAsyncChannel.sendMessageSynchronously(WifiManager.FORGET_NETWORK, 0);
703        mLooper.stopAutoDispatch();
704        assertEquals(WifiManager.FORGET_NETWORK_SUCCEEDED, result.what);
705        result.recycle();
706        mLooper.startAutoDispatch();
707        assertTrue(mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel).isEmpty());
708        mLooper.stopAutoDispatch();
709    }
710
711    private void forgetNetworkAndVerifyFailure() throws Exception {
712        mLooper.startAutoDispatch();
713        final Message result =
714                mWsmAsyncChannel.sendMessageSynchronously(WifiManager.FORGET_NETWORK, 0);
715        mLooper.stopAutoDispatch();
716        assertEquals(WifiManager.FORGET_NETWORK_FAILED, result.what);
717        result.recycle();
718        mLooper.startAutoDispatch();
719        assertEquals(1, mWsm.syncGetConfiguredNetworks(-1, mWsmAsyncChannel).size());
720        mLooper.stopAutoDispatch();
721        verify(mWifiNative, never()).removeNetwork(anyInt());
722    }
723
724    /**
725     * Verifies that the current foreground user is allowed to forget a network.
726     */
727    @Test
728    public void forgetNetworkAsCurrentUser() throws Exception {
729        addNetworkAndVerifySuccess();
730        forgetNetworkAndVerifySuccess();
731    }
732
733    /**
734     * Verifies that a managed profile of the current foreground user is allowed to forget a
735     * network.
736     */
737    @Test
738    public void forgetNetworkAsCurrentUsersManagedProfile() throws Exception {
739        addNetworkAndVerifySuccess();
740        BinderUtil.setUid(MANAGED_PROFILE_UID);
741        forgetNetworkAndVerifySuccess();
742    }
743
744    /**
745     * Verifies that a background user is not allowed to forget a network.
746     */
747    @Test
748    public void forgetNetworkAsOtherUser() throws Exception {
749        addNetworkAndVerifySuccess();
750        BinderUtil.setUid(OTHER_USER_UID);
751        forgetNetworkAndVerifyFailure();
752    }
753
754    private void verifyScan(int band, int reportEvents, Set<Integer> configuredNetworkIds) {
755        ArgumentCaptor<WifiScanner.ScanSettings> scanSettingsCaptor =
756                ArgumentCaptor.forClass(WifiScanner.ScanSettings.class);
757        ArgumentCaptor<WifiScanner.ScanListener> scanListenerCaptor =
758                ArgumentCaptor.forClass(WifiScanner.ScanListener.class);
759        verify(mWifiScanner).startScan(scanSettingsCaptor.capture(), scanListenerCaptor.capture(),
760                eq(null));
761        WifiScanner.ScanSettings actualSettings = scanSettingsCaptor.getValue();
762        assertEquals("band", band, actualSettings.band);
763        assertEquals("reportEvents", reportEvents, actualSettings.reportEvents);
764
765        if (configuredNetworkIds == null) {
766            configuredNetworkIds = new HashSet<>();
767        }
768        Set<Integer> actualConfiguredNetworkIds = new HashSet<>();
769        if (actualSettings.hiddenNetworkIds != null) {
770            for (int i = 0; i < actualSettings.hiddenNetworkIds.length; ++i) {
771                actualConfiguredNetworkIds.add(actualSettings.hiddenNetworkIds[i]);
772            }
773        }
774        assertEquals("configured networks", configuredNetworkIds, actualConfiguredNetworkIds);
775
776        when(mWifiNative.getScanResults()).thenReturn(getMockScanResults());
777        mWsm.sendMessage(WifiMonitor.SCAN_RESULTS_EVENT);
778
779        mLooper.dispatchAll();
780
781        List<ScanResult> reportedResults = mWsm.syncGetScanResultsList();
782        assertEquals(8, reportedResults.size());
783    }
784
785    @Test
786    public void scan() throws Exception {
787        addNetworkAndVerifySuccess();
788
789        mWsm.setOperationalMode(WifiStateMachine.CONNECT_MODE);
790        mWsm.startScan(-1, 0, null, null);
791        mLooper.dispatchAll();
792
793        verifyScan(WifiScanner.WIFI_BAND_BOTH_WITH_DFS,
794                WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN
795                | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT, null);
796    }
797
798    @Test
799    public void scanWithHiddenNetwork() throws Exception {
800        addNetworkAndVerifySuccess(true);
801
802        mWsm.setOperationalMode(WifiStateMachine.CONNECT_MODE);
803        mWsm.startScan(-1, 0, null, null);
804        mLooper.dispatchAll();
805
806        verifyScan(WifiScanner.WIFI_BAND_BOTH_WITH_DFS,
807                WifiScanner.REPORT_EVENT_AFTER_EACH_SCAN
808                | WifiScanner.REPORT_EVENT_FULL_SCAN_RESULT,
809                mWifiConfigManager.getHiddenConfiguredNetworkIds());
810    }
811
812    @Test
813    public void connect() throws Exception {
814        addNetworkAndVerifySuccess();
815
816        mWsm.setOperationalMode(WifiStateMachine.CONNECT_MODE);
817        mLooper.dispatchAll();
818
819        mLooper.startAutoDispatch();
820        mWsm.syncEnableNetwork(mWsmAsyncChannel, 0, true);
821        mLooper.stopAutoDispatch();
822
823        verify(mWifiNative).selectNetwork(0);
824
825        mWsm.sendMessage(WifiMonitor.NETWORK_CONNECTION_EVENT, 0, 0, sBSSID);
826        mLooper.dispatchAll();
827
828        mWsm.sendMessage(WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
829                new StateChangeResult(0, sWifiSsid, sBSSID, SupplicantState.COMPLETED));
830        mLooper.dispatchAll();
831
832        assertEquals("ObtainingIpState", getCurrentState().getName());
833
834        DhcpResults dhcpResults = new DhcpResults();
835        dhcpResults.setGateway("1.2.3.4");
836        dhcpResults.setIpAddress("192.168.1.100", 0);
837        dhcpResults.addDns("8.8.8.8");
838        dhcpResults.setLeaseDuration(3600);
839
840        mTestIpManager.injectDhcpSuccess(dhcpResults);
841        mLooper.dispatchAll();
842
843        assertEquals("ConnectedState", getCurrentState().getName());
844    }
845
846    @Test
847    public void testDhcpFailure() throws Exception {
848        addNetworkAndVerifySuccess();
849
850        mWsm.setOperationalMode(WifiStateMachine.CONNECT_MODE);
851        mLooper.dispatchAll();
852
853        mLooper.startAutoDispatch();
854        mWsm.syncEnableNetwork(mWsmAsyncChannel, 0, true);
855        mLooper.stopAutoDispatch();
856
857        verify(mWifiNative).selectNetwork(0);
858
859        mWsm.sendMessage(WifiMonitor.NETWORK_CONNECTION_EVENT, 0, 0, sBSSID);
860        mLooper.dispatchAll();
861
862        mWsm.sendMessage(WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
863                new StateChangeResult(0, sWifiSsid, sBSSID, SupplicantState.COMPLETED));
864        mLooper.dispatchAll();
865
866        assertEquals("ObtainingIpState", getCurrentState().getName());
867
868        mTestIpManager.injectDhcpFailure();
869        mLooper.dispatchAll();
870
871        assertEquals("DisconnectingState", getCurrentState().getName());
872    }
873
874    @Test
875    public void testBadNetworkEvent() throws Exception {
876        addNetworkAndVerifySuccess();
877
878        mWsm.setOperationalMode(WifiStateMachine.CONNECT_MODE);
879        mLooper.dispatchAll();
880
881        mLooper.startAutoDispatch();
882        mWsm.syncEnableNetwork(mWsmAsyncChannel, 0, true);
883        mLooper.stopAutoDispatch();
884
885        verify(mWifiNative).selectNetwork(0);
886
887        mWsm.sendMessage(WifiMonitor.NETWORK_DISCONNECTION_EVENT, 0, 0, sBSSID);
888        mLooper.dispatchAll();
889
890        mWsm.sendMessage(WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
891                new StateChangeResult(0, sWifiSsid, sBSSID, SupplicantState.COMPLETED));
892        mLooper.dispatchAll();
893
894        assertEquals("DisconnectedState", getCurrentState().getName());
895    }
896
897
898    @Test
899    public void smToString() throws Exception {
900        assertEquals("CMD_CHANNEL_HALF_CONNECTED", mWsm.smToString(
901                AsyncChannel.CMD_CHANNEL_HALF_CONNECTED));
902        assertEquals("CMD_PRE_DHCP_ACTION", mWsm.smToString(
903                DhcpClient.CMD_PRE_DHCP_ACTION));
904        assertEquals("CMD_IP_REACHABILITY_LOST", mWsm.smToString(
905                WifiStateMachine.CMD_IP_REACHABILITY_LOST));
906    }
907
908    @Test
909    public void disconnect() throws Exception {
910        connect();
911
912        mWsm.sendMessage(WifiMonitor.NETWORK_DISCONNECTION_EVENT, -1, 3, "01:02:03:04:05:06");
913        mLooper.dispatchAll();
914        mWsm.sendMessage(WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
915                new StateChangeResult(0, sWifiSsid, sBSSID, SupplicantState.DISCONNECTED));
916        mLooper.dispatchAll();
917
918        assertEquals("DisconnectedState", getCurrentState().getName());
919    }
920
921    @Test
922    public void handleUserSwitch() throws Exception {
923        assertEquals(UserHandle.USER_SYSTEM, mWsm.getCurrentUserId());
924
925        mWsm.handleUserSwitch(10);
926        mLooper.dispatchAll();
927
928        assertEquals(10, mWsm.getCurrentUserId());
929    }
930
931    @Test
932    public void iconQueryTest() throws Exception {
933        /* enable wi-fi */
934        addNetworkAndVerifySuccess();
935
936        long bssid = 0x1234567800FFL;
937        String filename = "iconFileName.png";
938        String command = "REQ_HS20_ICON " + Utils.macToString(bssid) + " " + filename;
939
940        when(mWifiNative.doCustomSupplicantCommand(command)).thenReturn("OK");
941
942        mLooper.startAutoDispatch();
943        boolean result = mWsm.syncQueryPasspointIcon(mWsmAsyncChannel, bssid, filename);
944        mLooper.stopAutoDispatch();
945
946        verify(mWifiNative).doCustomSupplicantCommand(command);
947        assertEquals(true, result);
948    }
949
950    private String createSimChallengeRequest(byte[] challengeValue) {
951        // Produce a base64 encoded length byte + data.
952        byte[] challengeLengthAndValue = new byte[challengeValue.length + 1];
953        challengeLengthAndValue[0] = (byte) challengeValue.length;
954        for (int i = 0; i < challengeValue.length; ++i) {
955            challengeLengthAndValue[i + 1] = challengeValue[i];
956        }
957        return Base64.encodeToString(challengeLengthAndValue, android.util.Base64.NO_WRAP);
958    }
959
960    private String createSimAuthResponse(byte[] sresValue, byte[] kcValue) {
961        // Produce a base64 encoded sres length byte + sres + kc length byte + kc.
962        int overallLength = sresValue.length + kcValue.length + 2;
963        byte[] result = new byte[sresValue.length + kcValue.length + 2];
964        int idx = 0;
965        result[idx++] = (byte) sresValue.length;
966        for (int i = 0; i < sresValue.length; ++i) {
967            result[idx++] = sresValue[i];
968        }
969        result[idx++] = (byte) kcValue.length;
970        for (int i = 0; i < kcValue.length; ++i) {
971            result[idx++] = kcValue[i];
972        }
973        return Base64.encodeToString(result, Base64.NO_WRAP);
974    }
975
976    /** Verifies function getGsmSimAuthResponse method. */
977    @Test
978    public void getGsmSimAuthResponseTest() throws Exception {
979        TelephonyManager tm = mock(TelephonyManager.class);
980        final String[] invalidRequests = { null, "", "XXXX" };
981        assertEquals("", mWsm.getGsmSimAuthResponse(invalidRequests, tm));
982
983        final String[] failedRequests = { "5E5F" };
984        when(tm.getIccSimChallengeResponse(anyInt(),
985                eq(createSimChallengeRequest(new byte[] { 0x5e, 0x5f })))).thenReturn(null);
986        assertEquals(null, mWsm.getGsmSimAuthResponse(failedRequests, tm));
987
988        when(tm.getIccSimChallengeResponse(2, createSimChallengeRequest(new byte[] { 0x1a, 0x2b })))
989                .thenReturn(null);
990        when(tm.getIccSimChallengeResponse(1, createSimChallengeRequest(new byte[] { 0x1a, 0x2b })))
991                .thenReturn(createSimAuthResponse(new byte[] { 0x1D, 0x2C },
992                       new byte[] { 0x3B, 0x4A }));
993        when(tm.getIccSimChallengeResponse(1, createSimChallengeRequest(new byte[] { 0x01, 0x23 })))
994                .thenReturn(createSimAuthResponse(new byte[] { 0x33, 0x22 },
995                        new byte[] { 0x11, 0x00 }));
996        assertEquals(":3b4a:1d2c:1100:3322", mWsm.getGsmSimAuthResponse(
997                new String[] { "1A2B", "0123" }, tm));
998    }
999}
1000