Merge "Support converting IkeTrafficSelector to/from PersistableBundle" am: 6a6a6349a7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1597156

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I783ea3c7f9ab4b96e15297a8711876388786c81c

core/java/android/net/vcn/persistablebundleutils/IkeTrafficSelectorUtils.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2021 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 android.net.vcn.persistablebundleutils;
+
+import static com.android.internal.annotations.VisibleForTesting.Visibility;
+
+import android.annotation.NonNull;
+import android.net.InetAddresses;
+import android.net.ipsec.ike.IkeTrafficSelector;
+import android.os.PersistableBundle;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.util.Objects;
+
+/**
+ * Provides utility methods to convert IkeTrafficSelector to/from PersistableBundle.
+ *
+ * @hide
+ */
+@VisibleForTesting(visibility = Visibility.PRIVATE)
+public final class IkeTrafficSelectorUtils {
+    private static final String START_PORT_KEY = "START_PORT_KEY";
+    private static final String END_PORT_KEY = "END_PORT_KEY";
+    private static final String START_ADDRESS_KEY = "START_ADDRESS_KEY";
+    private static final String END_ADDRESS_KEY = "END_ADDRESS_KEY";
+
+    /** Constructs an IkeTrafficSelector by deserializing a PersistableBundle. */
+    @NonNull
+    public static IkeTrafficSelector fromPersistableBundle(@NonNull PersistableBundle in) {
+        Objects.requireNonNull(in, "PersistableBundle was null");
+
+        final int startPort = in.getInt(START_PORT_KEY);
+        final int endPort = in.getInt(END_PORT_KEY);
+
+        final String startingAddress = in.getString(START_ADDRESS_KEY);
+        final String endingAddress = in.getString(END_ADDRESS_KEY);
+        Objects.requireNonNull(startingAddress, "startAddress was null");
+        Objects.requireNonNull(startingAddress, "endAddress was null");
+
+        return new IkeTrafficSelector(
+                startPort,
+                endPort,
+                InetAddresses.parseNumericAddress(startingAddress),
+                InetAddresses.parseNumericAddress(endingAddress));
+    }
+
+    /** Serializes an IkeTrafficSelector to a PersistableBundle. */
+    @NonNull
+    public static PersistableBundle toPersistableBundle(@NonNull IkeTrafficSelector ts) {
+        final PersistableBundle result = new PersistableBundle();
+
+        result.putInt(START_PORT_KEY, ts.startPort);
+        result.putInt(END_PORT_KEY, ts.endPort);
+        result.putString(START_ADDRESS_KEY, ts.startingAddress.getHostAddress());
+        result.putString(END_ADDRESS_KEY, ts.endingAddress.getHostAddress());
+
+        return result;
+    }
+}

tests/vcn/java/android/net/vcn/persistablebundleutils/IkeTrafficSelectorUtilsTest.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2021 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 android.net.vcn.persistablebundleutils;
+
+import static org.junit.Assert.assertEquals;
+
+import android.net.InetAddresses;
+import android.net.ipsec.ike.IkeTrafficSelector;
+import android.os.PersistableBundle;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.net.InetAddress;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class IkeTrafficSelectorUtilsTest {
+    private static final int START_PORT = 16;
+    private static final int END_PORT = 65520;
+
+    private static final InetAddress IPV4_START_ADDRESS =
+            InetAddresses.parseNumericAddress("192.0.2.100");
+    private static final InetAddress IPV4_END_ADDRESS =
+            InetAddresses.parseNumericAddress("192.0.2.101");
+
+    private static final InetAddress IPV6_START_ADDRESS =
+            InetAddresses.parseNumericAddress("2001:db8:2::100");
+    private static final InetAddress IPV6_END_ADDRESS =
+            InetAddresses.parseNumericAddress("2001:db8:2::101");
+
+    private static void verifyPersistableBundleEncodeDecodeIsLossless(IkeTrafficSelector ts) {
+        final PersistableBundle bundle = IkeTrafficSelectorUtils.toPersistableBundle(ts);
+        final IkeTrafficSelector resultTs = IkeTrafficSelectorUtils.fromPersistableBundle(bundle);
+        assertEquals(ts, resultTs);
+    }
+
+    @Test
+    public void testPersistableBundleEncodeDecodeIsLosslessIpv4Ts() throws Exception {
+        verifyPersistableBundleEncodeDecodeIsLossless(
+                new IkeTrafficSelector(START_PORT, END_PORT, IPV4_START_ADDRESS, IPV4_END_ADDRESS));
+    }
+
+    @Test
+    public void testPersistableBundleEncodeDecodeIsLosslessIpv6Ts() throws Exception {
+        verifyPersistableBundleEncodeDecodeIsLossless(
+                new IkeTrafficSelector(START_PORT, END_PORT, IPV6_START_ADDRESS, IPV6_END_ADDRESS));
+    }
+}