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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.ipsec.ike.message;
import static com.android.internal.net.ipsec.ike.message.IkePayload.PROTOCOL_ID_ESP;
import static com.android.internal.net.ipsec.ike.message.IkePayload.PROTOCOL_ID_IKE;
import static com.android.internal.net.ipsec.ike.message.IkePayload.SPI_LEN_IPSEC;
import static com.android.internal.net.ipsec.ike.message.IkePayload.SPI_LEN_NOT_INCLUDED;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.android.internal.net.TestUtils;
import com.android.internal.net.ipsec.ike.exceptions.InvalidSyntaxException;
import org.junit.Test;
import java.nio.ByteBuffer;
import java.util.Arrays;
public final class IkeDeletePayloadTest {
private static final String DELETE_IKE_PAYLOAD_HEX_STRING = "0000000801000000";
private static final String DELETE_CHILD_PAYLOAD_HEX_STRING = "0000000c030400012ad4c0a2";
private static final String CHILD_SPI = "2ad4c0a2";
private static final String DELETE_MULTIPLE_CHILD_PAYLOAD_HEX_STRING =
"0000001003040002abcdef0120fedcba";
private static final String[] MULTIPLE_CHILD_SPIS = new String[] {"abcdef01", "20fedcba"};
private static final int NUM_CHILD_SPI = 1;
private static final int PROTOCOL_ID_OFFSET = 4;
private static final int SPI_SIZE_OFFSET = 5;
private static final int NUM_OF_SPI_OFFSET = 6;
@Test
public void testDecodeDeleteIkePayload() throws Exception {
ByteBuffer inputBuffer =
ByteBuffer.wrap(TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING));
IkePayload payload =
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer)
.first;
assertTrue(payload instanceof IkeDeletePayload);
IkeDeletePayload deletePayload = (IkeDeletePayload) payload;
assertEquals(IkePayload.PROTOCOL_ID_IKE, deletePayload.protocolId);
assertEquals(IkePayload.SPI_LEN_NOT_INCLUDED, deletePayload.spiSize);
assertEquals(0, deletePayload.numSpi);
assertArrayEquals(new int[0], deletePayload.spisToDelete);
}
@Test
public void testDecodeDeleteChildPayload() throws Exception {
ByteBuffer inputBuffer =
ByteBuffer.wrap(TestUtils.hexStringToByteArray(DELETE_CHILD_PAYLOAD_HEX_STRING));
IkePayload payload =
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer)
.first;
assertTrue(payload instanceof IkeDeletePayload);
IkeDeletePayload deletePayload = (IkeDeletePayload) payload;
assertEquals(IkePayload.PROTOCOL_ID_ESP, deletePayload.protocolId);
assertEquals(IkePayload.SPI_LEN_IPSEC, deletePayload.spiSize);
assertEquals(NUM_CHILD_SPI, deletePayload.numSpi);
int expectedChildSpi = TestUtils.hexStringToInt(CHILD_SPI);
assertArrayEquals(new int[] {expectedChildSpi}, deletePayload.spisToDelete);
}
@Test
public void testDecodeWithInvalidProtocol() throws Exception {
byte[] deletePayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
deletePayloadBytes[PROTOCOL_ID_OFFSET] = -1;
ByteBuffer inputBuffer = ByteBuffer.wrap(deletePayloadBytes);
try {
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer);
fail("Expected to fail due to unrecognized protocol ID.");
} catch (InvalidSyntaxException expected) {
}
}
@Test
public void testDecodeWithInvalidSpiSize() throws Exception {
byte[] deletePayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
deletePayloadBytes[SPI_SIZE_OFFSET] = IkePayload.SPI_LEN_IPSEC;
ByteBuffer inputBuffer = ByteBuffer.wrap(deletePayloadBytes);
try {
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer);
fail("Expected to fail due to invalid SPI size in Delete IKE Payload.");
} catch (InvalidSyntaxException expected) {
}
}
@Test
public void testDecodeWithInvalidNumSpi() throws Exception {
byte[] deletePayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
deletePayloadBytes[NUM_OF_SPI_OFFSET] = 1;
ByteBuffer inputBuffer = ByteBuffer.wrap(deletePayloadBytes);
try {
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer);
fail("Expected to fail because number of SPI is not zero in Delete IKE Payload.");
} catch (InvalidSyntaxException expected) {
}
}
@Test
public void testDecodeWithInvalidNumSpiAndSpiSize() throws Exception {
byte[] deletePayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
deletePayloadBytes[SPI_SIZE_OFFSET] = 1;
deletePayloadBytes[NUM_CHILD_SPI] = 4;
ByteBuffer inputBuffer = ByteBuffer.wrap(deletePayloadBytes);
try {
IkePayloadFactory.getIkePayload(
IkePayload.PAYLOAD_TYPE_DELETE, false /*is request*/, inputBuffer);
fail("Expected to fail due to invalid SPI size in Delete IKE Payload.");
} catch (InvalidSyntaxException expected) {
}
}
@Test
public void testOutboundConstructorForIke() throws Exception {
IkeDeletePayload deletePayload = new IkeDeletePayload();
assertEquals(PROTOCOL_ID_IKE, deletePayload.protocolId);
assertEquals(SPI_LEN_NOT_INCLUDED, deletePayload.spiSize);
assertEquals(0, deletePayload.numSpi);
assertEquals(0, deletePayload.spisToDelete.length);
}
@Test
public void testOutboundConstructorWithSingleChildSa() throws Exception {
int[] childSpis = new int[] {TestUtils.hexStringToInt(CHILD_SPI)};
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
assertEquals(PROTOCOL_ID_ESP, deletePayload.protocolId);
assertEquals(SPI_LEN_IPSEC, deletePayload.spiSize);
assertEquals(NUM_CHILD_SPI, deletePayload.numSpi);
assertArrayEquals(childSpis, deletePayload.spisToDelete);
}
@Test
public void testOutboundConstructorWithMultipleChildSas() throws Exception {
int[] childSpis = new int[] {0x1, 0x2, 0xfffffffd, 0xffffffff};
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
assertEquals(PROTOCOL_ID_ESP, deletePayload.protocolId);
assertEquals(SPI_LEN_IPSEC, deletePayload.spiSize);
assertEquals(childSpis.length, deletePayload.numSpi);
assertArrayEquals(childSpis, deletePayload.spisToDelete);
}
@Test
public void testOutboundConstructorWithNoChildSas() throws Exception {
try {
IkeDeletePayload deletePayload = new IkeDeletePayload(new int[] {});
fail("Expected exception for invalid SPI list");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testEncodeForIke() throws Exception {
IkeDeletePayload deletePayload = new IkeDeletePayload();
ByteBuffer bb = ByteBuffer.allocate(deletePayload.getPayloadLength());
deletePayload.encodeToByteBuffer(IkePayload.PAYLOAD_TYPE_NO_NEXT, bb);
byte[] expectedPayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
assertArrayEquals(expectedPayloadBytes, bb.array());
}
@Test
public void testEncodeWithSingleChildSa() throws Exception {
int[] childSpis = new int[] {TestUtils.hexStringToInt(CHILD_SPI)};
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
ByteBuffer bb = ByteBuffer.allocate(deletePayload.getPayloadLength());
deletePayload.encodeToByteBuffer(IkePayload.PAYLOAD_TYPE_NO_NEXT, bb);
byte[] expectedPayloadBytes =
TestUtils.hexStringToByteArray(DELETE_CHILD_PAYLOAD_HEX_STRING);
assertArrayEquals(expectedPayloadBytes, bb.array());
}
@Test
public void testEncodeWithMultipleChildSas() throws Exception {
int[] childSpis =
Arrays.stream(MULTIPLE_CHILD_SPIS)
.mapToInt(val -> TestUtils.hexStringToInt(val))
.toArray();
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
ByteBuffer bb = ByteBuffer.allocate(deletePayload.getPayloadLength());
deletePayload.encodeToByteBuffer(IkePayload.PAYLOAD_TYPE_NO_NEXT, bb);
byte[] expectedPayloadBytes =
TestUtils.hexStringToByteArray(DELETE_MULTIPLE_CHILD_PAYLOAD_HEX_STRING);
assertArrayEquals(expectedPayloadBytes, bb.array());
}
@Test
public void testPayloadLengthForIke() throws Exception {
IkeDeletePayload deletePayload = new IkeDeletePayload();
byte[] expectedPayloadBytes = TestUtils.hexStringToByteArray(DELETE_IKE_PAYLOAD_HEX_STRING);
assertEquals(expectedPayloadBytes.length, deletePayload.getPayloadLength());
}
@Test
public void testPayloadLengthWithSingleChildSa() throws Exception {
int[] childSpis = new int[] {TestUtils.hexStringToInt(CHILD_SPI)};
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
byte[] expectedPayloadBytes =
TestUtils.hexStringToByteArray(DELETE_CHILD_PAYLOAD_HEX_STRING);
assertEquals(expectedPayloadBytes.length, deletePayload.getPayloadLength());
}
@Test
public void testPayloadLengthWithMultipleChildSas() throws Exception {
int[] childSpis =
Arrays.stream(MULTIPLE_CHILD_SPIS)
.mapToInt(val -> TestUtils.hexStringToInt(val))
.toArray();
IkeDeletePayload deletePayload = new IkeDeletePayload(childSpis);
byte[] expectedPayloadBytes =
TestUtils.hexStringToByteArray(DELETE_MULTIPLE_CHILD_PAYLOAD_HEX_STRING);
assertEquals(expectedPayloadBytes.length, deletePayload.getPayloadLength());
}
}
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