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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.message.simaka;
import static com.android.internal.net.TestUtils.hexStringToByteArray;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_AKA_CHALLENGE_RESPONSE_MAC_BYTES;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_AKA_CHALLENGE_RESPONSE_TYPE_DATA;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.EAP_AKA_IDENTITY_REQUEST;
import static com.android.internal.net.eap.message.EapTestMessageDefinitions.INVALID_SUBTYPE;
import static com.android.internal.net.eap.message.simaka.EapAkaTypeData.EAP_AKA_CHALLENGE;
import static com.android.internal.net.eap.message.simaka.EapAkaTypeData.EAP_AKA_IDENTITY;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_ANY_ID_REQ;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_AUTN;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_CHECKCODE;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_MAC;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_RAND;
import static com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EAP_AT_RES;
import static com.android.internal.net.eap.message.simaka.attributes.EapTestAttributeDefinitions.RES_BYTES;
import static junit.framework.TestCase.fail;
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 com.android.internal.net.eap.message.simaka.EapAkaTypeData.EapAkaTypeDataDecoder;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtAnyIdReq;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtAutn;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtMac;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtRandAka;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.AtRes;
import com.android.internal.net.eap.message.simaka.EapSimAkaAttribute.EapSimAkaUnsupportedAttribute;
import com.android.internal.net.eap.message.simaka.EapSimAkaTypeData.DecodeResult;
import org.junit.Before;
import org.junit.Test;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map.Entry;
public class EapAkaTypeDataTest {
private static final int UNABLE_TO_PROCESS_CODE = 0;
private static final int INVALID_SUBTYPE_INT = -1;
private static final int EAP_AT_TRUST_IND = 139;
private static final String RAND = "7A1FCDC0034BA1227E7B9FCEAFD47D53";
private static final byte[] RAND_BYTES = hexStringToByteArray(RAND);
private static final String AUTN = "000102030405060708090A0B0C0D0E0F";
private static final byte[] AUTN_BYTES = hexStringToByteArray(AUTN);
private static final String MAC = "95FEB9E70427F34B4FAC8F2C7A65A302";
private static final byte[] MAC_BYTES = hexStringToByteArray(MAC);
private static final byte[] EAP_AKA_REQUEST =
hexStringToByteArray(
"010000" // Challenge | 2B padding
+ "01050000" + RAND // AT_RAND attribute
+ "02050000" + AUTN // AT_AUTN attribute
+ "8B010002" // AT_RESULT_IND attribute (TS 124 302#8.2.3.1)
+ "0B050000" + MAC // AT_MAC attribute
+ "86010000"); // AT_CHECKCODE attribute
private EapAkaTypeDataDecoder mEapAkaTypeDataDecoder;
@Before
public void setUp() {
mEapAkaTypeDataDecoder = EapAkaTypeData.getEapAkaTypeDataDecoder();
}
@Test
public void testDecode() {
DecodeResult<EapAkaTypeData> result =
mEapAkaTypeDataDecoder.decode(EAP_AKA_CHALLENGE_RESPONSE_TYPE_DATA);
assertTrue(result.isSuccessfulDecode());
EapAkaTypeData eapAkaTypeData = result.eapTypeData;
assertEquals(EAP_AKA_CHALLENGE, eapAkaTypeData.eapSubtype);
// also check Map entries (needs to match input order)
Iterator<Entry<Integer, EapSimAkaAttribute>> itr =
eapAkaTypeData.attributeMap.entrySet().iterator();
Entry<Integer, EapSimAkaAttribute> entry = itr.next();
assertEquals(EAP_AT_RES, (int) entry.getKey());
assertArrayEquals(RES_BYTES, ((AtRes) entry.getValue()).res);
entry = itr.next();
assertEquals(EAP_AT_MAC, (int) entry.getKey());
assertArrayEquals(EAP_AKA_CHALLENGE_RESPONSE_MAC_BYTES, ((AtMac) entry.getValue()).mac);
assertFalse(itr.hasNext());
}
@Test
public void testDecodeWithOptionalAttributes() {
DecodeResult<EapAkaTypeData> result = mEapAkaTypeDataDecoder.decode(EAP_AKA_REQUEST);
assertTrue(result.isSuccessfulDecode());
EapAkaTypeData eapAkaTypeData = result.eapTypeData;
assertEquals(EAP_AKA_CHALLENGE, eapAkaTypeData.eapSubtype);
// also check Map entries (needs to match input order)
Iterator<Entry<Integer, EapSimAkaAttribute>> itr =
eapAkaTypeData.attributeMap.entrySet().iterator();
Entry<Integer, EapSimAkaAttribute> entry = itr.next();
assertEquals(EAP_AT_RAND, (int) entry.getKey());
assertArrayEquals(RAND_BYTES, ((AtRandAka) entry.getValue()).rand);
entry = itr.next();
assertEquals(EAP_AT_AUTN, (int) entry.getKey());
assertArrayEquals(AUTN_BYTES, ((AtAutn) entry.getValue()).autn);
entry = itr.next();
assertEquals(EAP_AT_TRUST_IND, (int) entry.getKey());
assertTrue(entry.getValue() instanceof EapSimAkaUnsupportedAttribute);
entry = itr.next();
assertEquals(EAP_AT_MAC, (int) entry.getKey());
assertArrayEquals(MAC_BYTES, ((AtMac) entry.getValue()).mac);
entry = itr.next();
assertEquals(EAP_AT_CHECKCODE, (int) entry.getKey());
assertTrue(entry.getValue() instanceof EapSimAkaUnsupportedAttribute);
assertFalse(itr.hasNext());
}
@Test
public void testDecodeInvalidSubtype() {
DecodeResult<EapAkaTypeData> result = mEapAkaTypeDataDecoder.decode(INVALID_SUBTYPE);
assertFalse(result.isSuccessfulDecode());
assertEquals(UNABLE_TO_PROCESS_CODE, result.atClientErrorCode.errorCode);
}
@Test
public void testEncode() throws Exception {
LinkedHashMap<Integer, EapSimAkaAttribute> attributes = new LinkedHashMap<>();
attributes.put(EAP_AT_ANY_ID_REQ, new AtAnyIdReq());
EapAkaTypeData eapAkaTypeData = new EapAkaTypeData(EAP_AKA_IDENTITY, attributes);
byte[] result = eapAkaTypeData.encode();
assertArrayEquals(EAP_AKA_IDENTITY_REQUEST, result);
}
@Test
public void testConstructorInvalidSubtype() throws Exception {
try {
new EapAkaTypeData(INVALID_SUBTYPE_INT, Arrays.asList(new AtAnyIdReq()));
fail("Expected IllegalArgumentException for invalid subtype");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testConstructorDuplicateAttributes() throws Exception {
try {
new EapAkaTypeData(EAP_AKA_IDENTITY, Arrays.asList(new AtAnyIdReq(), new AtAnyIdReq()));
fail("Expected IllegalArgumentException for duplicate attributes");
} catch (IllegalArgumentException expected) {
}
}
}
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