Merge "Support decoding inbound Delete Payload"

1 files changed, 144 insertions, 0 deletions

diff --git a/tests/iketests/src/java/com/android/ike/ikev2/message/IkeDeletePayloadTest.java b/tests/iketests/src/java/com/android/ike/ikev2/message/IkeDeletePayloadTest.java
new file mode 100644
index 00000000..1a7b9a29
--- /dev/null
+++ b/tests/iketests/src/java/com/android/ike/ikev2/message/IkeDeletePayloadTest.java
@@ -0,0 +1,144 @@
+/*
+ * 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.message;
+
+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.ike.ikev2.exceptions.InvalidSyntaxException;
+
+import org.junit.Test;
+
+import java.nio.ByteBuffer;
+
+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 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);
+
+        byte[] childSpiBytes = TestUtils.hexStringToByteArray(CHILD_SPI);
+        ByteBuffer buffer = ByteBuffer.wrap(childSpiBytes);
+        int expectedChildSpi = buffer.getInt();
+
+        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) {
+
+        }
+    }
+}