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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.ike.ikev2;
import static com.android.ike.ikev2.IkeSessionOptions.IkeAuthConfig;
import static com.android.ike.ikev2.IkeSessionOptions.IkeAuthDigitalSignRemoteConfig;
import static com.android.ike.ikev2.IkeSessionOptions.IkeAuthEapConfig;
import static com.android.ike.ikev2.IkeSessionOptions.IkeAuthPskConfig;
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.junit.Assert.fail;
import static org.mockito.Mockito.mock;
import android.content.Context;
import android.net.IpSecManager;
import android.net.IpSecManager.UdpEncapsulationSocket;
import androidx.test.InstrumentationRegistry;
import com.android.ike.TestUtils;
import com.android.ike.eap.EapSessionConfig;
import libcore.net.InetAddressUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.net.Inet4Address;
import java.security.cert.X509Certificate;
public final class IkeSessionOptionsTest {
private static final String PSK_HEX_STRING = "6A756E69706572313233";
private static final byte[] PSK = TestUtils.hexStringToByteArray(PSK_HEX_STRING);
private static final Inet4Address LOCAL_IPV4_ADDRESS =
(Inet4Address) (InetAddressUtils.parseNumericAddress("192.0.2.200"));
private static final Inet4Address REMOTE_IPV4_ADDRESS =
(Inet4Address) (InetAddressUtils.parseNumericAddress("192.0.2.100"));
private UdpEncapsulationSocket mUdpEncapSocket;
private IkeSaProposal mIkeSaProposal;
private IkeIdentification mLocalIdentification;
private IkeIdentification mRemoteIdentification;
@Before
public void setUp() throws Exception {
Context context = InstrumentationRegistry.getContext();
IpSecManager ipSecManager = (IpSecManager) context.getSystemService(Context.IPSEC_SERVICE);
mUdpEncapSocket = ipSecManager.openUdpEncapsulationSocket();
mIkeSaProposal =
new IkeSaProposal.Builder()
.addEncryptionAlgorithm(
SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_8,
SaProposal.KEY_LEN_AES_128)
.addPseudorandomFunction(SaProposal.PSEUDORANDOM_FUNCTION_AES128_XCBC)
.addDhGroup(SaProposal.DH_GROUP_1024_BIT_MODP)
.build();
mLocalIdentification = new IkeIpv4AddrIdentification(LOCAL_IPV4_ADDRESS);
mRemoteIdentification = new IkeIpv4AddrIdentification(REMOTE_IPV4_ADDRESS);
}
@After
public void tearDown() throws Exception {
mUdpEncapSocket.close();
}
private void verifyIkeSessionOptionsCommon(IkeSessionOptions sessionOptions) {
assertEquals(REMOTE_IPV4_ADDRESS, sessionOptions.getServerAddress());
assertEquals(mUdpEncapSocket, sessionOptions.getUdpEncapsulationSocket());
assertArrayEquals(new SaProposal[] {mIkeSaProposal}, sessionOptions.getSaProposals());
assertEquals(mLocalIdentification, sessionOptions.getLocalIdentification());
assertEquals(mRemoteIdentification, sessionOptions.getRemoteIdentification());
assertFalse(sessionOptions.isIkeFragmentationSupported());
}
@Test
public void testBuildWithPsk() throws Exception {
IkeSessionOptions sessionOptions =
new IkeSessionOptions.Builder()
.setServerAddress(REMOTE_IPV4_ADDRESS)
.setUdpEncapsulationSocket(mUdpEncapSocket)
.addSaProposal(mIkeSaProposal)
.setLocalIdentification(mLocalIdentification)
.setRemoteIdentification(mRemoteIdentification)
.setAuthPsk(PSK)
.build();
verifyIkeSessionOptionsCommon(sessionOptions);
IkeAuthConfig localConfig = sessionOptions.getLocalAuthConfig();
assertTrue(localConfig instanceof IkeAuthPskConfig);
assertEquals(IkeSessionOptions.IKE_AUTH_METHOD_PSK, localConfig.mAuthMethod);
assertArrayEquals(PSK, ((IkeAuthPskConfig) localConfig).mPsk);
IkeAuthConfig remoteConfig = sessionOptions.getRemoteAuthConfig();
assertTrue(remoteConfig instanceof IkeAuthPskConfig);
assertEquals(IkeSessionOptions.IKE_AUTH_METHOD_PSK, remoteConfig.mAuthMethod);
assertArrayEquals(PSK, ((IkeAuthPskConfig) remoteConfig).mPsk);
}
@Test
public void testBuildWithEap() throws Exception {
X509Certificate mockCert = mock(X509Certificate.class);
EapSessionConfig eapConfig = mock(EapSessionConfig.class);
IkeSessionOptions sessionOptions =
new IkeSessionOptions.Builder()
.setServerAddress(REMOTE_IPV4_ADDRESS)
.setUdpEncapsulationSocket(mUdpEncapSocket)
.addSaProposal(mIkeSaProposal)
.setLocalIdentification(mLocalIdentification)
.setRemoteIdentification(mRemoteIdentification)
.setAuthEap(mockCert, eapConfig)
.build();
verifyIkeSessionOptionsCommon(sessionOptions);
IkeAuthConfig localConfig = sessionOptions.getLocalAuthConfig();
assertTrue(localConfig instanceof IkeAuthEapConfig);
assertEquals(IkeSessionOptions.IKE_AUTH_METHOD_EAP, localConfig.mAuthMethod);
assertEquals(eapConfig, ((IkeAuthEapConfig) localConfig).mEapConfig);
IkeAuthConfig remoteConfig = sessionOptions.getRemoteAuthConfig();
assertTrue(remoteConfig instanceof IkeAuthDigitalSignRemoteConfig);
assertEquals(IkeSessionOptions.IKE_AUTH_METHOD_PUB_KEY_SIGNATURE, remoteConfig.mAuthMethod);
assertEquals(
mockCert,
((IkeAuthDigitalSignRemoteConfig) remoteConfig).mTrustAnchor.getTrustedCert());
}
@Test
public void testBuildWithoutSaProposal() throws Exception {
try {
new IkeSessionOptions.Builder()
.setServerAddress(REMOTE_IPV4_ADDRESS)
.setUdpEncapsulationSocket(mUdpEncapSocket)
.build();
fail("Expected to fail due to absence of SA proposal.");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBuildWithoutLocalId() throws Exception {
try {
new IkeSessionOptions.Builder()
.setServerAddress(REMOTE_IPV4_ADDRESS)
.setUdpEncapsulationSocket(mUdpEncapSocket)
.addSaProposal(mIkeSaProposal)
.setRemoteIdentification(mRemoteIdentification)
.setAuthPsk(PSK)
.build();
fail("Expected to fail because local identification is not set.");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBuildWithoutSetAuth() throws Exception {
try {
new IkeSessionOptions.Builder()
.setServerAddress(REMOTE_IPV4_ADDRESS)
.setUdpEncapsulationSocket(mUdpEncapSocket)
.addSaProposal(mIkeSaProposal)
.setLocalIdentification(mLocalIdentification)
.setRemoteIdentification(mRemoteIdentification)
.build();
fail("Expected to fail because authentiction method is not set.");
} catch (IllegalArgumentException expected) {
}
}
}
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