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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 com.android.internal.net.eap.message.EapData.EAP_TYPE_MSCHAP_V2;
import static com.android.internal.net.eap.message.EapMessage.EAP_CODE_REQUEST;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_MSCHAP_V2_FAILURE_RESPONSE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_MSCHAP_V2_SUCCESS_RESPONSE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.ID_INT;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.INVALID_AUTHENTICATOR_RESPONSE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSCHAP_V2_AUTHENTICATOR_CHALLENGE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSCHAP_V2_AUTHENTICATOR_RESPONSE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSCHAP_V2_ID_INT;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSCHAP_V2_NT_RESPONSE;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.MSCHAP_V2_PEER_CHALLENGE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.CHALLENGE_BYTES;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.ERROR_CODE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.MESSAGE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.PASSWORD_CHANGE_PROTOCOL;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2PacketDefinitions.RETRY_BIT;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EAP_MSCHAP_V2_FAILURE;
import static com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EAP_MSCHAP_V2_SUCCESS;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
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.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.mschapv2.EapMsChapV2TypeData.EapMsChapV2FailureRequest;
import com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EapMsChapV2SuccessRequest;
import com.android.internal.net.eap.message.mschapv2.EapMsChapV2TypeData.EapMsChapV2TypeDataDecoder.DecodeResult;
import com.android.internal.net.eap.statemachine.EapMethodStateMachine.FinalState;
import com.android.internal.net.eap.statemachine.EapMsChapV2MethodStateMachine.AwaitingEapFailureState;
import com.android.internal.net.eap.statemachine.EapMsChapV2MethodStateMachine.AwaitingEapSuccessState;
import org.junit.Before;
import org.junit.Test;
import java.nio.BufferUnderflowException;
public class EapMsChapV2ValidateAuthenticatorStateTest extends EapMsChapV2StateTest {
private static final int INVALID_OP_CODE = -1;
@Before
@Override
public void setUp() {
super.setUp();
mStateMachine.transitionTo(
mStateMachine.new ValidateAuthenticatorState(
MSCHAP_V2_AUTHENTICATOR_CHALLENGE,
MSCHAP_V2_PEER_CHALLENGE,
MSCHAP_V2_NT_RESPONSE));
}
@Test
public void testProcessSuccessRequest() throws Exception {
EapData eapData = new EapData(EAP_TYPE_MSCHAP_V2, DUMMY_TYPE_DATA);
EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
EapMsChapV2SuccessRequest successRequest =
new EapMsChapV2SuccessRequest(
MSCHAP_V2_ID_INT, 0, MSCHAP_V2_AUTHENTICATOR_RESPONSE, MESSAGE);
when(mMockTypeDataDecoder.getOpCode(eq(DUMMY_TYPE_DATA))).thenReturn(EAP_MSCHAP_V2_SUCCESS);
when(mMockTypeDataDecoder.decodeSuccessRequest(any(String.class), eq(DUMMY_TYPE_DATA)))
.thenReturn(new DecodeResult<>(successRequest));
EapResult result = mStateMachine.process(eapMessage);
EapResponse eapResponse = (EapResponse) result;
assertArrayEquals(EAP_MSCHAP_V2_SUCCESS_RESPONSE, eapResponse.packet);
assertTrue(mStateMachine.getState() instanceof AwaitingEapSuccessState);
verify(mMockTypeDataDecoder).getOpCode(eq(DUMMY_TYPE_DATA));
verify(mMockTypeDataDecoder).decodeSuccessRequest(any(String.class), eq(DUMMY_TYPE_DATA));
}
@Test
public void testProcessInvalidSuccessRequest() throws Exception {
EapData eapData = new EapData(EAP_TYPE_MSCHAP_V2, DUMMY_TYPE_DATA);
EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
EapMsChapV2SuccessRequest successRequest =
new EapMsChapV2SuccessRequest(
MSCHAP_V2_ID_INT, 0, INVALID_AUTHENTICATOR_RESPONSE, MESSAGE);
when(mMockTypeDataDecoder.getOpCode(eq(DUMMY_TYPE_DATA))).thenReturn(EAP_MSCHAP_V2_SUCCESS);
when(mMockTypeDataDecoder.decodeSuccessRequest(any(String.class), eq(DUMMY_TYPE_DATA)))
.thenReturn(new DecodeResult<>(successRequest));
EapResult result = mStateMachine.process(eapMessage);
assertTrue(result instanceof EapFailure);
assertTrue(mStateMachine.getState() instanceof FinalState);
verify(mMockTypeDataDecoder).getOpCode(eq(DUMMY_TYPE_DATA));
verify(mMockTypeDataDecoder).decodeSuccessRequest(any(String.class), eq(DUMMY_TYPE_DATA));
}
@Test
public void testProcessFailureRequest() throws Exception {
EapData eapData = new EapData(EAP_TYPE_MSCHAP_V2, DUMMY_TYPE_DATA);
EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
EapMsChapV2FailureRequest failureRequest =
new EapMsChapV2FailureRequest(
MSCHAP_V2_ID_INT,
0,
ERROR_CODE,
RETRY_BIT,
CHALLENGE_BYTES,
PASSWORD_CHANGE_PROTOCOL,
MESSAGE);
when(mMockTypeDataDecoder.getOpCode(eq(DUMMY_TYPE_DATA))).thenReturn(EAP_MSCHAP_V2_FAILURE);
when(mMockTypeDataDecoder.decodeFailureRequest(any(String.class), eq(DUMMY_TYPE_DATA)))
.thenReturn(new DecodeResult<>(failureRequest));
EapResult result = mStateMachine.process(eapMessage);
EapResponse eapResponse = (EapResponse) result;
assertArrayEquals(EAP_MSCHAP_V2_FAILURE_RESPONSE, eapResponse.packet);
assertTrue(mStateMachine.getState() instanceof AwaitingEapFailureState);
verify(mMockTypeDataDecoder).getOpCode(eq(DUMMY_TYPE_DATA));
verify(mMockTypeDataDecoder).decodeFailureRequest(any(String.class), eq(DUMMY_TYPE_DATA));
}
@Test
public void testProcessEmptyTypeData() throws Exception {
EapData eapData = new EapData(EAP_TYPE_MSCHAP_V2, new byte[0]);
EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
when(mMockTypeDataDecoder.getOpCode(eq(new byte[0])))
.thenThrow(new BufferUnderflowException());
EapResult result = mStateMachine.process(eapMessage);
EapError eapError = (EapError) result;
assertTrue(eapError.cause instanceof BufferUnderflowException);
verify(mMockTypeDataDecoder).getOpCode(eq(new byte[0]));
}
@Test
public void testProcessInvalidPacket() throws Exception {
EapData eapData = new EapData(EAP_TYPE_MSCHAP_V2, DUMMY_TYPE_DATA);
EapMessage eapMessage = new EapMessage(EAP_CODE_REQUEST, ID_INT, eapData);
when(mMockTypeDataDecoder.getOpCode(eq(DUMMY_TYPE_DATA))).thenReturn(INVALID_OP_CODE);
EapResult result = mStateMachine.process(eapMessage);
EapError eapError = (EapError) result;
assertTrue(eapError.cause instanceof EapInvalidRequestException);
verify(mMockTypeDataDecoder).getOpCode(eq(DUMMY_TYPE_DATA));
}
}
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