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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;
import static com.android.internal.net.TestUtils.hexStringToByteArray;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_REQUEST_AKA_IDENTITY_PACKET;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import android.net.eap.EapSessionConfig;
import com.android.internal.net.eap.statemachine.EapStateMachine;
import org.junit.Before;
import org.junit.Test;
public class EapMsChapV2Test extends EapMethodEndToEndTest {
private static final long AUTHENTICATOR_TIMEOUT_MILLIS = 250L;
private static final String USERNAME = "User";
private static final String PASSWORD = "clientPass";
private static final byte[] PEER_CHALLENGE =
hexStringToByteArray("21402324255E262A28295F2B3A337C7E");
private static final byte[] MSK =
hexStringToByteArray(
"D5F0E9521E3EA9589645E86051C822268B7CDC149B993A1BA118CB153F56DCCB");
// Server-Name = hex("authenticator@android.net")
private static final byte[] EAP_MSCHAP_V2_CHALLENGE_REQUEST =
hexStringToByteArray("01110033" // EAP-Request | ID | length in bytes
+ "1A0142" // EAP-MSCHAPv2 | Request | MSCHAPv2 ID
+ "002E10" // MS length | Value Size (0x10)
+ "5B5D7C7D7B3F2F3E3C2C602132262628" // Authenticator-Challenge
+ "61757468656E74696361746F7240616E64726F69642E6E6574"); // Server-Name
private static final byte[] EAP_MSCHAP_V2_CHALLENGE_RESPONSE =
hexStringToByteArray("0211003F" // EAP-Response | ID | length in bytes
+ "1A0242" // EAP-MSCHAPv2 | Response | MSCHAPv2 ID
+ "003A31" // MS length | Value Size (0x31)
+ "21402324255E262A28295F2B3A337C7E" // Peer-Challenge
+ "0000000000000000" // 8B (reserved)
+ "82309ECD8D708B5EA08FAA3981CD83544233114A3D85D6DF" // NT-Response
+ "00" // Flags
+ "55736572"); // hex(USERNAME)
private static final byte[] EAP_MSCHAP_V2_SUCCESS_REQUEST =
hexStringToByteArray("01120047" // EAP-Request | ID | length in bytes
+ "1A03420042" // EAP-MSCHAPv2 | Success | MSCHAPv2 ID | MS length
+ "533D" // hex("S=")
+ "3430374135353839313135464430443632303946"
+ "3531304645394330343536363933324344413536" // hex("<auth_string>")
+ "204D3D" // hex(" M=")
+ "7465737420416E64726F69642031323334"); // hex("test Android 1234")
private static final byte[] EAP_MSCHAP_V2_SUCCESS_RESPONSE =
hexStringToByteArray("02120006" // EAP-Response | ID | length in bytes
+ "1A03"); // EAP-MSCHAPv2 | Success
private static final byte[] EAP_MSCHAP_V2_FAILURE_REQUEST =
hexStringToByteArray("01130049" // EAP-Request | ID | length in bytes
+ "1A04420044" // EAP-MSCHAPv2 | Failure | MSCHAPv2 ID | MS length
+ "453D363437" // hex("E=647")
+ "20523D31" // hex(" R=1")
+ "20433D" // hex(" C=")
+ "30303031303230333034303530363037"
+ "30383039304130423043304430453046" // hex("<authenticator challenge>")
+ "20563D33" // hex(" V=3")
+ "204D3D" // hex(" M=")
+ "7465737420416E64726F69642031323334"); // hex("test Android 1234")
private static final byte[] EAP_MSCHAP_V2_FAILURE_RESPONSE =
hexStringToByteArray("02130006" // EAP-Response | ID | length in bytes
+ "1A04"); // EAP-MSCHAPv2 | Failure
private static final byte[] EAP_RESPONSE_NAK_PACKET = hexStringToByteArray("02100006031A");
@Before
@Override
public void setUp() {
super.setUp();
mEapSessionConfig =
new EapSessionConfig.Builder().setEapMsChapV2Config(USERNAME, PASSWORD).build();
mEapAuthenticator =
new EapAuthenticator(
mTestLooper.getLooper(),
mMockCallback,
new EapStateMachine(mMockContext, mEapSessionConfig, mMockSecureRandom),
(runnable) -> runnable.run(),
AUTHENTICATOR_TIMEOUT_MILLIS);
}
@Test
public void testEapMsChapV2EndToEndSuccess() {
verifyEapMsChapV2Challenge();
verifyEapMsChapV2SuccessRequest();
verifyEapSuccess(MSK, new byte[0]);
}
@Test
public void testEapMsChapV2EndToEndFailure() {
verifyEapMsChapV2Challenge();
verifyEapMsChapV2FailureRequest();
verifyEapFailure();
}
@Test
public void testEapMsChapV2UnsupportedType() {
verifyUnsupportedType(EAP_REQUEST_AKA_IDENTITY_PACKET, EAP_RESPONSE_NAK_PACKET);
verifyEapMsChapV2Challenge();
verifyEapMsChapV2SuccessRequest();
verifyEapSuccess(MSK, new byte[0]);
}
@Test
public void verifyEapMsChapV2WithEapNotifications() {
verifyEapNotification(1);
verifyEapMsChapV2Challenge();
verifyEapNotification(2);
verifyEapMsChapV2SuccessRequest();
verifyEapNotification(3);
verifyEapSuccess(MSK, new byte[0]);
}
private void verifyEapMsChapV2Challenge() {
doAnswer(invocation -> {
byte[] dst = invocation.getArgument(0);
System.arraycopy(PEER_CHALLENGE, 0, dst, 0, PEER_CHALLENGE.length);
return null;
}).when(mMockSecureRandom).nextBytes(eq(new byte[PEER_CHALLENGE.length]));
mEapAuthenticator.processEapMessage(EAP_MSCHAP_V2_CHALLENGE_REQUEST);
mTestLooper.dispatchAll();
verify(mMockCallback).onResponse(eq(EAP_MSCHAP_V2_CHALLENGE_RESPONSE));
verify(mMockSecureRandom).nextBytes(any(byte[].class));
verifyNoMoreInteractions(mMockCallback);
}
private void verifyEapMsChapV2SuccessRequest() {
mEapAuthenticator.processEapMessage(EAP_MSCHAP_V2_SUCCESS_REQUEST);
mTestLooper.dispatchAll();
verify(mMockCallback).onResponse(eq(EAP_MSCHAP_V2_SUCCESS_RESPONSE));
verifyNoMoreInteractions(mMockCallback);
}
private void verifyEapMsChapV2FailureRequest() {
mEapAuthenticator.processEapMessage(EAP_MSCHAP_V2_FAILURE_REQUEST);
mTestLooper.dispatchAll();
verify(mMockCallback).onResponse(eq(EAP_MSCHAP_V2_FAILURE_RESPONSE));
verifyNoMoreInteractions(mMockCallback);
}
}
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