| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| package com.android.internal.net.eap.statemachine; |
| |
| import static android.net.eap.EapSessionConfig.EapMethodConfig.EAP_TYPE_SIM; |
| import static android.telephony.TelephonyManager.APPTYPE_USIM; |
| |
| import static com.android.internal.net.TestUtils.hexStringToByteArray; |
| import static com.android.internal.net.eap.message.EapMessage.EAP_CODE_REQUEST; |
| import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_SIM_CLIENT_ERROR_UNABLE_TO_PROCESS; |
| import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_SIM_NOTIFICATION_RESPONSE; |
| import static com.android.internal.net.eap.message.EapTestMessageDefinitions.ID_INT; |
| import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtNotification.GENERAL_FAILURE_PRE_CHALLENGE; |
| import static com.android.internal.net.eap.message.simaka.EapSimTypeData.EAP_SIM_NOTIFICATION; |
| import static com.android.internal.net.eap.message.simaka.EapSimTypeData.EAP_SIM_START; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.ArgumentMatchers.eq; |
| import static org.mockito.Mockito.doReturn; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.verifyNoMoreInteractions; |
| |
| import android.net.eap.EapSessionConfig.EapSimConfig; |
| import android.telephony.TelephonyManager; |
| |
| import com.android.internal.net.eap.EapResult.EapError; |
| import com.android.internal.net.eap.EapResult.EapResponse; |
| import com.android.internal.net.eap.exceptions.EapInvalidRequestException; |
| import com.android.internal.net.eap.message.EapData; |
| import com.android.internal.net.eap.message.EapMessage; |
| import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtNotification; |
| import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtVersionList; |
| import com.android.internal.net.eap.message.simaka.EapSimAkaTypeData; |
| import com.android.internal.net.eap.message.simaka.EapSimAkaTypeData.DecodeResult; |
| import com.android.internal.net.eap.message.simaka.EapSimTypeData; |
| import com.android.internal.net.eap.message.simaka.EapSimTypeData.EapSimTypeDataDecoder; |
| import com.android.internal.net.eap.statemachine.EapSimMethodStateMachine.CreatedState; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.security.SecureRandom; |
| import java.util.Arrays; |
| |
| public class EapSimMethodStateMachineTest { |
| private static final int SUB_ID = 1; |
| private static final byte[] DUMMY_EAP_TYPE_DATA = hexStringToByteArray("112233445566"); |
| |
| // EAP-Identity = hex("test@android.net") |
| protected static final byte[] EAP_IDENTITY_BYTES = |
| hexStringToByteArray("7465737440616E64726F69642E6E6574"); |
| |
| private TelephonyManager mMockTelephonyManager; |
| private EapSimTypeDataDecoder mMockEapSimTypeDataDecoder; |
| |
| private EapSimConfig mEapSimConfig = new EapSimConfig(SUB_ID, APPTYPE_USIM); |
| private EapSimMethodStateMachine mEapSimMethodStateMachine; |
| |
| |
| @Before |
| public void setUp() { |
| mMockTelephonyManager = mock(TelephonyManager.class); |
| mMockEapSimTypeDataDecoder = mock(EapSimTypeDataDecoder.class); |
| |
| TelephonyManager mockInitialTelephonyManager = mock(TelephonyManager.class); |
| doReturn(mMockTelephonyManager) |
| .when(mockInitialTelephonyManager) |
| .createForSubscriptionId(SUB_ID); |
| |
| mEapSimMethodStateMachine = |
| new EapSimMethodStateMachine( |
| mockInitialTelephonyManager, |
| EAP_IDENTITY_BYTES, |
| mEapSimConfig, |
| new SecureRandom(), |
| mMockEapSimTypeDataDecoder); |
| |
| verify(mockInitialTelephonyManager).createForSubscriptionId(SUB_ID); |
| } |
| |
| @Test |
| public void testEapSimMethodStateMachineStartState() { |
| assertTrue(mEapSimMethodStateMachine.getState() instanceof CreatedState); |
| } |
| |
| @Test |
| public void testGetMethod() { |
| assertEquals(EAP_TYPE_SIM, mEapSimMethodStateMachine.getEapMethod()); |
| } |
| |
| @Test |
| public void testEapSimFailsOnMultipleSimNotifications() throws Exception { |
| EapData eapData = new EapData(EAP_TYPE_SIM, DUMMY_EAP_TYPE_DATA); |
| EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData); |
| |
| // First EAP-SIM/Notification |
| EapSimTypeData notificationTypeData = |
| new EapSimTypeData( |
| EAP_SIM_NOTIFICATION, |
| Arrays.asList(new AtNotification(GENERAL_FAILURE_PRE_CHALLENGE))); |
| DecodeResult<EapSimTypeData> decodeResult = new DecodeResult<>(notificationTypeData); |
| doReturn(decodeResult).when(mMockEapSimTypeDataDecoder).decode(eq(DUMMY_EAP_TYPE_DATA)); |
| |
| EapResponse eapResponse = (EapResponse) mEapSimMethodStateMachine.process(eapMessage); |
| assertArrayEquals(EAP_SIM_NOTIFICATION_RESPONSE, eapResponse.packet); |
| verify(mMockEapSimTypeDataDecoder).decode(DUMMY_EAP_TYPE_DATA); |
| verifyNoMoreInteractions(mMockTelephonyManager, mMockEapSimTypeDataDecoder); |
| |
| // Transition to StartState |
| decodeResult = |
| new DecodeResult<>( |
| new EapSimTypeData(EAP_SIM_START, Arrays.asList(new AtVersionList(8, 1)))); |
| doReturn(decodeResult).when(mMockEapSimTypeDataDecoder).decode(eq(DUMMY_EAP_TYPE_DATA)); |
| |
| eapResponse = (EapResponse) mEapSimMethodStateMachine.process(eapMessage); |
| assertFalse( |
| "EAP-Request/SIM-Start returned a Client-Error response", |
| Arrays.equals(EAP_SIM_CLIENT_ERROR_UNABLE_TO_PROCESS, eapResponse.packet)); |
| |
| // decoded in: previous 1 time + in CreatedState and StartState |
| verify(mMockEapSimTypeDataDecoder, times(3)).decode(eq(DUMMY_EAP_TYPE_DATA)); |
| verifyNoMoreInteractions(mMockTelephonyManager, mMockEapSimTypeDataDecoder); |
| |
| // Second EAP-SIM/Notification |
| decodeResult = new EapSimAkaTypeData.DecodeResult<>(notificationTypeData); |
| doReturn(decodeResult).when(mMockEapSimTypeDataDecoder).decode(eq(DUMMY_EAP_TYPE_DATA)); |
| |
| EapError eapError = (EapError) mEapSimMethodStateMachine.process(eapMessage); |
| assertTrue(eapError.cause instanceof EapInvalidRequestException); |
| |
| // decoded previous 3 times + 1 |
| verify(mMockEapSimTypeDataDecoder, times(4)).decode(DUMMY_EAP_TYPE_DATA); |
| verifyNoMoreInteractions(mMockTelephonyManager, mMockEapSimTypeDataDecoder); |
| } |
| } |