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/*
* 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.telephony.TelephonyManager.APPTYPE_USIM;
import static com.android.internal.net.eap.message.EapMessage.EAP_CODE_FAILURE;
import static com.android.internal.net.eap.message.EapMessage.EAP_CODE_SUCCESS;
import static com.android.internal.net.eap.message.EapMessage.EAP_HEADER_LENGTH;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_AKA_PRIME_REQUEST;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_FAILURE_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_AKA;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_IDENTITY_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_MSCHAP_V2;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_NOTIFICATION_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_SIM_START_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_RESPONSE_NAK_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_RESPONSE_NOTIFICATION_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_SUCCESS_PACKET;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EMSK;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.ID_INT;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSK;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;
import android.net.eap.EapSessionConfig;
import com.android.internal.net.eap.EapResult;
import com.android.internal.net.eap.EapResult.EapError;
import com.android.internal.net.eap.EapResult.EapFailure;
import com.android.internal.net.eap.EapResult.EapResponse;
import com.android.internal.net.eap.EapResult.EapSuccess;
import com.android.internal.net.eap.exceptions.EapInvalidRequestException;
import com.android.internal.net.eap.message.EapMessage;
import com.android.internal.net.eap.statemachine.EapStateMachine.FailureState;
import com.android.internal.net.eap.statemachine.EapStateMachine.MethodState;
import com.android.internal.net.eap.statemachine.EapStateMachine.SuccessState;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentMatcher;
import java.security.SecureRandom;
public class MethodStateTest extends EapStateTest {
private static final String USERNAME = "username";
private static final String PASSWORD = "password";
private static final String NETWORK_NAME = "android.net";
private static final boolean ALLOW_MISMATCHED_NETWORK_NAMES = true;
@Before
@Override
public void setUp() {
super.setUp();
mEapState = mEapStateMachine.new MethodState();
mEapStateMachine.transitionTo(mEapState);
}
@Test
public void testProcessUnsupportedEapType() {
mEapState = mEapStateMachine.new MethodState();
EapResult result = mEapState.process(EAP_REQUEST_IDENTITY_PACKET);
EapResponse eapResponse = (EapResponse) result;
assertArrayEquals(EAP_RESPONSE_NAK_PACKET, eapResponse.packet);
}
@Test
public void testProcessTransitionsToEapSim() {
mEapStateMachine.process(EAP_REQUEST_SIM_START_PACKET);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
MethodState methodState = (MethodState) mEapStateMachine.getState();
assertTrue(methodState.mEapMethodStateMachine instanceof EapSimMethodStateMachine);
}
@Test
public void testProcessTransitionToEapAka() {
// make EapStateMachine with EAP-AKA configurations
EapSessionConfig eapSessionConfig = new EapSessionConfig.Builder()
.setEapAkaConfig(0, APPTYPE_USIM).build();
mEapStateMachine = new EapStateMachine(mContext, eapSessionConfig, new SecureRandom());
mEapStateMachine.process(EAP_REQUEST_AKA);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
MethodState methodState = (MethodState) mEapStateMachine.getState();
assertTrue(methodState.mEapMethodStateMachine instanceof EapAkaMethodStateMachine);
}
@Test
public void testProcessTransitionToEapAkaPrime() {
// make EapStateMachine with EAP-AKA' configurations
EapSessionConfig eapSessionConfig =
new EapSessionConfig.Builder()
.setEapAkaPrimeConfig(
0, APPTYPE_USIM, NETWORK_NAME, ALLOW_MISMATCHED_NETWORK_NAMES)
.build();
mEapStateMachine = new EapStateMachine(mContext, eapSessionConfig, new SecureRandom());
mEapStateMachine.process(EAP_AKA_PRIME_REQUEST);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
MethodState methodState = (MethodState) mEapStateMachine.getState();
assertTrue(methodState.mEapMethodStateMachine instanceof EapAkaPrimeMethodStateMachine);
}
@Test
public void testProcessTransitionToEapMsChapV2() {
// make EapStateMachine with EAP MSCHAPv2 configurations
EapSessionConfig eapSessionConfig =
new EapSessionConfig.Builder().setEapMsChapV2Config(USERNAME, PASSWORD).build();
mEapStateMachine = new EapStateMachine(mContext, eapSessionConfig, new SecureRandom());
mEapStateMachine.process(EAP_REQUEST_MSCHAP_V2);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
MethodState methodState = (MethodState) mEapStateMachine.getState();
assertTrue(methodState.mEapMethodStateMachine instanceof EapMsChapV2MethodStateMachine);
}
@Test
public void testProcessTransitionToSuccessState() {
EapSuccess eapSuccess = new EapSuccess(MSK, EMSK);
ArgumentMatcher<EapMessage> eapSuccessMatcher = msg ->
msg.eapCode == EAP_CODE_SUCCESS
&& msg.eapIdentifier == ID_INT
&& msg.eapLength == EAP_HEADER_LENGTH
&& msg.eapData == null;
EapMethodStateMachine mockEapMethodStateMachine = mock(EapMethodStateMachine.class);
when(mockEapMethodStateMachine.process(argThat(eapSuccessMatcher))).thenReturn(eapSuccess);
((MethodState) mEapState).mEapMethodStateMachine = mockEapMethodStateMachine;
mEapState.process(EAP_SUCCESS_PACKET);
verify(mockEapMethodStateMachine).process(argThat(eapSuccessMatcher));
assertTrue(mEapStateMachine.getState() instanceof SuccessState);
verifyNoMoreInteractions(mockEapMethodStateMachine);
}
@Test
public void testProcessTransitionToFailureState() {
EapFailure eapFailure = new EapFailure();
ArgumentMatcher<EapMessage> eapSuccessMatcher = msg ->
msg.eapCode == EAP_CODE_FAILURE
&& msg.eapIdentifier == ID_INT
&& msg.eapLength == EAP_HEADER_LENGTH
&& msg.eapData == null;
EapMethodStateMachine mockEapMethodStateMachine = mock(EapMethodStateMachine.class);
when(mockEapMethodStateMachine.process(argThat(eapSuccessMatcher))).thenReturn(eapFailure);
((MethodState) mEapState).mEapMethodStateMachine = mockEapMethodStateMachine;
mEapState.process(EAP_FAILURE_PACKET);
verify(mockEapMethodStateMachine).process(argThat(eapSuccessMatcher));
assertTrue(mEapStateMachine.getState() instanceof FailureState);
verifyNoMoreInteractions(mockEapMethodStateMachine);
}
@Test
public void testProcessEapFailureWithNoEapMethodState() {
EapResult result = mEapStateMachine.process(EAP_FAILURE_PACKET);
assertTrue(result instanceof EapFailure);
assertTrue(mEapStateMachine.getState() instanceof FailureState);
}
@Test
public void testProcessEapSuccessWithNoEapMethodState() {
EapResult result = mEapStateMachine.process(EAP_SUCCESS_PACKET);
EapError eapError = (EapError) result;
assertTrue(eapError.cause instanceof EapInvalidRequestException);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
}
@Test
public void testProcessEapNotificationWithNoEapMethodState() {
EapResult result = mEapStateMachine.process(EAP_REQUEST_NOTIFICATION_PACKET);
EapResponse eapResponse = (EapResponse) result;
assertArrayEquals(EAP_RESPONSE_NOTIFICATION_PACKET, eapResponse.packet);
assertTrue(mEapStateMachine.getState() instanceof MethodState);
}
}
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