Merge "Add parceling for DhcpServingParams"
diff --git a/Android.bp b/Android.bp
index 124f473..482b19d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -825,6 +825,7 @@
     local_include_dir: "core/java",
     srcs: [
         "core/java/android/net/INetworkStackConnector.aidl",
+        "core/java/android/net/dhcp/DhcpServingParamsParcel.aidl",
     ],
     api_dir: "aidl/networkstack",
 }
diff --git a/core/java/android/net/dhcp/DhcpServingParamsParcel.aidl b/core/java/android/net/dhcp/DhcpServingParamsParcel.aidl
new file mode 100644
index 0000000..7b8b9ee
--- /dev/null
+++ b/core/java/android/net/dhcp/DhcpServingParamsParcel.aidl
@@ -0,0 +1,30 @@
+/**
+ *
+ * Copyright (C) 2018 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.dhcp;
+
+parcelable DhcpServingParamsParcel {
+    int serverAddr;
+    int serverAddrPrefixLength;
+    int[] defaultRouters;
+    int[] dnsServers;
+    int[] excludedAddrs;
+    long dhcpLeaseTimeSecs;
+    int linkMtu;
+    boolean metered;
+}
+
diff --git a/services/net/java/android/net/dhcp/DhcpServingParams.java b/services/net/java/android/net/dhcp/DhcpServingParams.java
index df15ba1..2780814a 100644
--- a/services/net/java/android/net/dhcp/DhcpServingParams.java
+++ b/services/net/java/android/net/dhcp/DhcpServingParams.java
@@ -17,6 +17,7 @@
 package android.net.dhcp;
 
 import static android.net.NetworkUtils.getPrefixMaskAsInet4Address;
+import static android.net.NetworkUtils.intToInet4AddressHTH;
 import static android.net.dhcp.DhcpPacket.INFINITE_LEASE;
 import static android.net.util.NetworkConstants.IPV4_MAX_MTU;
 import static android.net.util.NetworkConstants.IPV4_MIN_MTU;
@@ -24,6 +25,7 @@
 import static java.lang.Integer.toUnsignedLong;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.net.IpPrefix;
 import android.net.LinkAddress;
 import android.net.NetworkUtils;
@@ -103,6 +105,37 @@
         this.metered = metered;
     }
 
+    /**
+     * Create parameters from a stable AIDL-compatible parcel.
+     */
+    public static DhcpServingParams fromParcelableObject(@NonNull DhcpServingParamsParcel parcel)
+            throws InvalidParameterException {
+        final LinkAddress serverAddr = new LinkAddress(
+                intToInet4AddressHTH(parcel.serverAddr),
+                parcel.serverAddrPrefixLength);
+        return new Builder()
+                .setServerAddr(serverAddr)
+                .setDefaultRouters(toInet4AddressSet(parcel.defaultRouters))
+                .setDnsServers(toInet4AddressSet(parcel.dnsServers))
+                .setExcludedAddrs(toInet4AddressSet(parcel.excludedAddrs))
+                .setDhcpLeaseTimeSecs(parcel.dhcpLeaseTimeSecs)
+                .setLinkMtu(parcel.linkMtu)
+                .setMetered(parcel.metered)
+                .build();
+    }
+
+    private static Set<Inet4Address> toInet4AddressSet(@Nullable int[] addrs) {
+        if (addrs == null) {
+            return new HashSet<>(0);
+        }
+
+        final HashSet<Inet4Address> res = new HashSet<>();
+        for (int addr : addrs) {
+            res.add(intToInet4AddressHTH(addr));
+        }
+        return res;
+    }
+
     @NonNull
     public Inet4Address getServerInet4Addr() {
         return (Inet4Address) serverAddr.getAddress();
@@ -134,13 +167,13 @@
      * of the parameters.
      */
     public static class Builder {
-        private LinkAddress serverAddr;
-        private Set<Inet4Address> defaultRouters;
-        private Set<Inet4Address> dnsServers;
-        private Set<Inet4Address> excludedAddrs;
-        private long dhcpLeaseTimeSecs;
-        private int linkMtu = MTU_UNSET;
-        private boolean metered;
+        private LinkAddress mServerAddr;
+        private Set<Inet4Address> mDefaultRouters;
+        private Set<Inet4Address> mDnsServers;
+        private Set<Inet4Address> mExcludedAddrs;
+        private long mDhcpLeaseTimeSecs;
+        private int mLinkMtu = MTU_UNSET;
+        private boolean mMetered;
 
         /**
          * Set the server address and served prefix for the DHCP server.
@@ -148,7 +181,7 @@
          * <p>This parameter is required.
          */
         public Builder setServerAddr(@NonNull LinkAddress serverAddr) {
-            this.serverAddr = serverAddr;
+            this.mServerAddr = serverAddr;
             return this;
         }
 
@@ -159,7 +192,7 @@
          * always be set explicitly before building the {@link DhcpServingParams}.
          */
         public Builder setDefaultRouters(@NonNull Set<Inet4Address> defaultRouters) {
-            this.defaultRouters = defaultRouters;
+            this.mDefaultRouters = defaultRouters;
             return this;
         }
 
@@ -189,7 +222,7 @@
          * {@link DhcpServingParams}.
          */
         public Builder setDnsServers(@NonNull Set<Inet4Address> dnsServers) {
-            this.dnsServers = dnsServers;
+            this.mDnsServers = dnsServers;
             return this;
         }
 
@@ -219,7 +252,7 @@
          * and do not need to be set here.
          */
         public Builder setExcludedAddrs(@NonNull Set<Inet4Address> excludedAddrs) {
-            this.excludedAddrs = excludedAddrs;
+            this.mExcludedAddrs = excludedAddrs;
             return this;
         }
 
@@ -239,7 +272,7 @@
          * <p>This parameter is required.
          */
         public Builder setDhcpLeaseTimeSecs(long dhcpLeaseTimeSecs) {
-            this.dhcpLeaseTimeSecs = dhcpLeaseTimeSecs;
+            this.mDhcpLeaseTimeSecs = dhcpLeaseTimeSecs;
             return this;
         }
 
@@ -250,7 +283,7 @@
          * is optional and defaults to {@link #MTU_UNSET}.
          */
         public Builder setLinkMtu(int linkMtu) {
-            this.linkMtu = linkMtu;
+            this.mLinkMtu = linkMtu;
             return this;
         }
 
@@ -260,7 +293,7 @@
          * <p>If not set, the default value is false.
          */
         public Builder setMetered(boolean metered) {
-            this.metered = metered;
+            this.mMetered = metered;
             return this;
         }
 
@@ -274,54 +307,57 @@
          */
         @NonNull
         public DhcpServingParams build() throws InvalidParameterException {
-            if (serverAddr == null) {
+            if (mServerAddr == null) {
                 throw new InvalidParameterException("Missing serverAddr");
             }
-            if (defaultRouters == null) {
+            if (mDefaultRouters == null) {
                 throw new InvalidParameterException("Missing defaultRouters");
             }
-            if (dnsServers == null) {
+            if (mDnsServers == null) {
                 // Empty set is OK, but enforce explicitly setting it
                 throw new InvalidParameterException("Missing dnsServers");
             }
-            if (dhcpLeaseTimeSecs <= 0 || dhcpLeaseTimeSecs > toUnsignedLong(INFINITE_LEASE)) {
-                throw new InvalidParameterException("Invalid lease time: " + dhcpLeaseTimeSecs);
+            if (mDhcpLeaseTimeSecs <= 0 || mDhcpLeaseTimeSecs > toUnsignedLong(INFINITE_LEASE)) {
+                throw new InvalidParameterException("Invalid lease time: " + mDhcpLeaseTimeSecs);
             }
-            if (linkMtu != MTU_UNSET && (linkMtu < IPV4_MIN_MTU || linkMtu > IPV4_MAX_MTU)) {
-                throw new InvalidParameterException("Invalid link MTU: " + linkMtu);
+            if (mLinkMtu != MTU_UNSET && (mLinkMtu < IPV4_MIN_MTU || mLinkMtu > IPV4_MAX_MTU)) {
+                throw new InvalidParameterException("Invalid link MTU: " + mLinkMtu);
             }
-            if (!serverAddr.isIPv4()) {
+            if (!mServerAddr.isIPv4()) {
                 throw new InvalidParameterException("serverAddr must be IPv4");
             }
-            if (serverAddr.getPrefixLength() < MIN_PREFIX_LENGTH
-                    || serverAddr.getPrefixLength() > MAX_PREFIX_LENGTH) {
+            if (mServerAddr.getPrefixLength() < MIN_PREFIX_LENGTH
+                    || mServerAddr.getPrefixLength() > MAX_PREFIX_LENGTH) {
                 throw new InvalidParameterException("Prefix length is not in supported range");
             }
 
-            final IpPrefix prefix = makeIpPrefix(serverAddr);
-            for (Inet4Address addr : defaultRouters) {
+            final IpPrefix prefix = makeIpPrefix(mServerAddr);
+            for (Inet4Address addr : mDefaultRouters) {
                 if (!prefix.contains(addr)) {
                     throw new InvalidParameterException(String.format(
-                            "Default router %s is not in server prefix %s", addr, serverAddr));
+                            "Default router %s is not in server prefix %s", addr, mServerAddr));
                 }
             }
 
             final Set<Inet4Address> excl = new HashSet<>();
-            if (excludedAddrs != null) {
-                excl.addAll(excludedAddrs);
+            if (mExcludedAddrs != null) {
+                excl.addAll(mExcludedAddrs);
             }
-            excl.add((Inet4Address) serverAddr.getAddress());
-            excl.addAll(defaultRouters);
-            excl.addAll(dnsServers);
+            excl.add((Inet4Address) mServerAddr.getAddress());
+            excl.addAll(mDefaultRouters);
+            excl.addAll(mDnsServers);
 
-            return new DhcpServingParams(serverAddr,
-                    Collections.unmodifiableSet(new HashSet<>(defaultRouters)),
-                    Collections.unmodifiableSet(new HashSet<>(dnsServers)),
+            return new DhcpServingParams(mServerAddr,
+                    Collections.unmodifiableSet(new HashSet<>(mDefaultRouters)),
+                    Collections.unmodifiableSet(new HashSet<>(mDnsServers)),
                     Collections.unmodifiableSet(excl),
-                    dhcpLeaseTimeSecs, linkMtu, metered);
+                    mDhcpLeaseTimeSecs, mLinkMtu, mMetered);
         }
     }
 
+    /**
+     * Utility method to create an IpPrefix with the address and prefix length of a LinkAddress.
+     */
     @NonNull
     static IpPrefix makeIpPrefix(@NonNull LinkAddress addr) {
         return new IpPrefix(addr.getAddress(), addr.getPrefixLength());
diff --git a/services/net/java/android/net/dhcp/DhcpServingParamsParcelExt.java b/services/net/java/android/net/dhcp/DhcpServingParamsParcelExt.java
new file mode 100644
index 0000000..f068c3a
--- /dev/null
+++ b/services/net/java/android/net/dhcp/DhcpServingParamsParcelExt.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2018 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.dhcp;
+
+import static android.net.NetworkUtils.inet4AddressToIntHTH;
+
+import android.annotation.NonNull;
+import android.net.LinkAddress;
+
+import com.google.android.collect.Sets;
+
+import java.net.Inet4Address;
+import java.util.Collection;
+import java.util.Set;
+
+/**
+ * Subclass of {@link DhcpServingParamsParcel} with additional utility methods for building.
+ *
+ * <p>This utility class does not check for validity of the parameters: invalid parameters are
+ * reported by the receiving module when unparceling the parcel.
+ *
+ * @see DhcpServingParams
+ * @hide
+ */
+public class DhcpServingParamsParcelExt extends DhcpServingParamsParcel {
+    public static final int MTU_UNSET = 0;
+
+    /**
+     * Set the server address and served prefix for the DHCP server.
+     *
+     * <p>This parameter is required.
+     */
+    public DhcpServingParamsParcelExt setServerAddr(@NonNull LinkAddress serverAddr) {
+        this.serverAddr = inet4AddressToIntHTH((Inet4Address) serverAddr.getAddress());
+        this.serverAddrPrefixLength = serverAddr.getPrefixLength();
+        return this;
+    }
+
+    /**
+     * Set the default routers to be advertised to DHCP clients.
+     *
+     * <p>Each router must be inside the served prefix. This may be an empty set, but it must
+     * always be set explicitly.
+     */
+    public DhcpServingParamsParcelExt setDefaultRouters(@NonNull Set<Inet4Address> defaultRouters) {
+        this.defaultRouters = toIntArray(defaultRouters);
+        return this;
+    }
+
+    /**
+     * Set the default routers to be advertised to DHCP clients.
+     *
+     * <p>Each router must be inside the served prefix. This may be an empty list of routers,
+     * but it must always be set explicitly.
+     */
+    public DhcpServingParamsParcelExt setDefaultRouters(@NonNull Inet4Address... defaultRouters) {
+        return setDefaultRouters(Sets.newArraySet(defaultRouters));
+    }
+
+    /**
+     * Convenience method to build the parameters with no default router.
+     *
+     * <p>Equivalent to calling {@link #setDefaultRouters(Inet4Address...)} with no address.
+     */
+    public DhcpServingParamsParcelExt setNoDefaultRouter() {
+        return setDefaultRouters();
+    }
+
+    /**
+     * Set the DNS servers to be advertised to DHCP clients.
+     *
+     * <p>This may be an empty set, but it must always be set explicitly.
+     */
+    public DhcpServingParamsParcelExt setDnsServers(@NonNull Set<Inet4Address> dnsServers) {
+        this.dnsServers = toIntArray(dnsServers);
+        return this;
+    }
+
+    /**
+     * Set the DNS servers to be advertised to DHCP clients.
+     *
+     * <p>This may be an empty list of servers, but it must always be set explicitly.
+     */
+    public DhcpServingParamsParcelExt setDnsServers(@NonNull Inet4Address... dnsServers) {
+        return setDnsServers(Sets.newArraySet(dnsServers));
+    }
+
+    /**
+     * Convenience method to build the parameters with no DNS server.
+     *
+     * <p>Equivalent to calling {@link #setDnsServers(Inet4Address...)} with no address.
+     */
+    public DhcpServingParamsParcelExt setNoDnsServer() {
+        return setDnsServers();
+    }
+
+    /**
+     * Set excluded addresses that the DHCP server is not allowed to assign to clients.
+     *
+     * <p>This parameter is optional. DNS servers and default routers are always excluded
+     * and do not need to be set here.
+     */
+    public DhcpServingParamsParcelExt setExcludedAddrs(@NonNull Set<Inet4Address> excludedAddrs) {
+        this.excludedAddrs = toIntArray(excludedAddrs);
+        return this;
+    }
+
+    /**
+     * Set excluded addresses that the DHCP server is not allowed to assign to clients.
+     *
+     * <p>This parameter is optional. DNS servers and default routers are always excluded
+     * and do not need to be set here.
+     */
+    public DhcpServingParamsParcelExt setExcludedAddrs(@NonNull Inet4Address... excludedAddrs) {
+        return setExcludedAddrs(Sets.newArraySet(excludedAddrs));
+    }
+
+    /**
+     * Set the lease time for leases assigned by the DHCP server.
+     *
+     * <p>This parameter is required.
+     */
+    public DhcpServingParamsParcelExt setDhcpLeaseTimeSecs(long dhcpLeaseTimeSecs) {
+        this.dhcpLeaseTimeSecs = dhcpLeaseTimeSecs;
+        return this;
+    }
+
+    /**
+     * Set the link MTU to be advertised to DHCP clients.
+     *
+     * <p>If set to {@link #MTU_UNSET}, no MTU will be advertised to clients. This parameter
+     * is optional and defaults to {@link #MTU_UNSET}.
+     */
+    public DhcpServingParamsParcelExt setLinkMtu(int linkMtu) {
+        this.linkMtu = linkMtu;
+        return this;
+    }
+
+    /**
+     * Set whether the DHCP server should send the ANDROID_METERED vendor-specific option.
+     *
+     * <p>If not set, the default value is false.
+     */
+    public DhcpServingParamsParcelExt setMetered(boolean metered) {
+        this.metered = metered;
+        return this;
+    }
+
+    private static int[] toIntArray(@NonNull Collection<Inet4Address> addrs) {
+        int[] res = new int[addrs.size()];
+        int i = 0;
+        for (Inet4Address addr : addrs) {
+            res[i] = inet4AddressToIntHTH(addr);
+            i++;
+        }
+        return res;
+    }
+}
diff --git a/tests/net/java/android/net/dhcp/DhcpServingParamsParcelExtTest.java b/tests/net/java/android/net/dhcp/DhcpServingParamsParcelExtTest.java
new file mode 100644
index 0000000..4a6f20a
--- /dev/null
+++ b/tests/net/java/android/net/dhcp/DhcpServingParamsParcelExtTest.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2018 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.dhcp;
+
+import static android.net.InetAddresses.parseNumericAddress;
+
+import static com.google.android.collect.Sets.newHashSet;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import android.net.LinkAddress;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.net.Inet4Address;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class DhcpServingParamsParcelExtTest {
+    private static final Inet4Address TEST_ADDRESS = inet4Addr("192.168.0.123");
+    private static final int TEST_ADDRESS_PARCELED = 0xc0a8007b;
+    private static final int TEST_PREFIX_LENGTH = 17;
+    private static final int TEST_LEASE_TIME_SECS = 120;
+    private static final int TEST_MTU = 1000;
+    private static final Set<Inet4Address> TEST_ADDRESS_SET =
+            newHashSet(inet4Addr("192.168.1.123"), inet4Addr("192.168.1.124"));
+    private static final Set<Integer> TEST_ADDRESS_SET_PARCELED =
+            newHashSet(0xc0a8017b, 0xc0a8017c);
+
+    private DhcpServingParamsParcelExt mParcel;
+
+    @Before
+    public void setUp() {
+        mParcel = new DhcpServingParamsParcelExt();
+    }
+
+    @Test
+    public void testSetServerAddr() {
+        mParcel.setServerAddr(new LinkAddress(TEST_ADDRESS, TEST_PREFIX_LENGTH));
+
+        assertEquals(TEST_ADDRESS_PARCELED, mParcel.serverAddr);
+        assertEquals(TEST_PREFIX_LENGTH, mParcel.serverAddrPrefixLength);
+    }
+
+    @Test
+    public void testSetDefaultRouters() {
+        mParcel.setDefaultRouters(TEST_ADDRESS_SET);
+        assertEquals(TEST_ADDRESS_SET_PARCELED, asSet(mParcel.defaultRouters));
+    }
+
+    @Test
+    public void testSetDnsServers() {
+        mParcel.setDnsServers(TEST_ADDRESS_SET);
+        assertEquals(TEST_ADDRESS_SET_PARCELED, asSet(mParcel.dnsServers));
+    }
+
+    @Test
+    public void testSetExcludedAddrs() {
+        mParcel.setExcludedAddrs(TEST_ADDRESS_SET);
+        assertEquals(TEST_ADDRESS_SET_PARCELED, asSet(mParcel.excludedAddrs));
+    }
+
+    @Test
+    public void testSetDhcpLeaseTimeSecs() {
+        mParcel.setDhcpLeaseTimeSecs(TEST_LEASE_TIME_SECS);
+        assertEquals(TEST_LEASE_TIME_SECS, mParcel.dhcpLeaseTimeSecs);
+    }
+
+    @Test
+    public void testSetLinkMtu() {
+        mParcel.setLinkMtu(TEST_MTU);
+        assertEquals(TEST_MTU, mParcel.linkMtu);
+    }
+
+    @Test
+    public void testSetMetered() {
+        mParcel.setMetered(true);
+        assertTrue(mParcel.metered);
+        mParcel.setMetered(false);
+        assertFalse(mParcel.metered);
+    }
+
+    private static Inet4Address inet4Addr(String addr) {
+        return (Inet4Address) parseNumericAddress(addr);
+    }
+
+    private static Set<Integer> asSet(int[] ints) {
+        return IntStream.of(ints).boxed().collect(Collectors.toSet());
+    }
+}
diff --git a/tests/net/java/android/net/dhcp/DhcpServingParamsTest.java b/tests/net/java/android/net/dhcp/DhcpServingParamsTest.java
index b6a4073..2ab2246 100644
--- a/tests/net/java/android/net/dhcp/DhcpServingParamsTest.java
+++ b/tests/net/java/android/net/dhcp/DhcpServingParamsTest.java
@@ -16,6 +16,7 @@
 
 package android.net.dhcp;
 
+import static android.net.NetworkUtils.inet4AddressToIntHTH;
 import static android.net.dhcp.DhcpServingParams.MTU_UNSET;
 
 import static junit.framework.Assert.assertEquals;
@@ -27,6 +28,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.net.LinkAddress;
+import android.net.NetworkUtils;
 import android.net.dhcp.DhcpServingParams.InvalidParameterException;
 import android.support.test.filters.SmallTest;
 import android.support.test.runner.AndroidJUnit4;
@@ -35,8 +37,10 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.lang.reflect.Modifier;
 import java.net.Inet4Address;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -56,6 +60,7 @@
     private static final int TEST_MTU = 1500;
     private static final Set<Inet4Address> TEST_EXCLUDED_ADDRS = new HashSet<>(
             Arrays.asList(parseAddr("192.168.0.200"), parseAddr("192.168.0.201")));
+    private static final boolean TEST_METERED = true;
 
     @Before
     public void setUp() {
@@ -65,7 +70,8 @@
                 .setDnsServers(TEST_DNS_SERVERS)
                 .setServerAddr(TEST_LINKADDR)
                 .setLinkMtu(TEST_MTU)
-                .setExcludedAddrs(TEST_EXCLUDED_ADDRS);
+                .setExcludedAddrs(TEST_EXCLUDED_ADDRS)
+                .setMetered(TEST_METERED);
     }
 
     @Test
@@ -91,6 +97,7 @@
         assertEquals(TEST_DNS_SERVERS, params.dnsServers);
         assertEquals(TEST_LINKADDR, params.serverAddr);
         assertEquals(TEST_MTU, params.linkMtu);
+        assertEquals(TEST_METERED, params.metered);
 
         assertContains(params.excludedAddrs, TEST_EXCLUDED_ADDRS);
         assertContains(params.excludedAddrs, TEST_DEFAULT_ROUTERS);
@@ -159,6 +166,39 @@
         mBuilder.setDefaultRouters(parseAddr("192.168.254.254")).build();
     }
 
+    @Test
+    public void testFromParcelableObject() throws InvalidParameterException {
+        final DhcpServingParams params = mBuilder.build();
+        final DhcpServingParamsParcel parcel = new DhcpServingParamsParcel();
+        parcel.defaultRouters = toIntArray(TEST_DEFAULT_ROUTERS);
+        parcel.dhcpLeaseTimeSecs = TEST_LEASE_TIME_SECS;
+        parcel.dnsServers = toIntArray(TEST_DNS_SERVERS);
+        parcel.serverAddr = inet4AddressToIntHTH(TEST_SERVER_ADDR);
+        parcel.serverAddrPrefixLength = TEST_LINKADDR.getPrefixLength();
+        parcel.linkMtu = TEST_MTU;
+        parcel.excludedAddrs = toIntArray(TEST_EXCLUDED_ADDRS);
+        parcel.metered = TEST_METERED;
+        final DhcpServingParams parceled = DhcpServingParams.fromParcelableObject(parcel);
+
+        assertEquals(params.defaultRouters, parceled.defaultRouters);
+        assertEquals(params.dhcpLeaseTimeSecs, parceled.dhcpLeaseTimeSecs);
+        assertEquals(params.dnsServers, parceled.dnsServers);
+        assertEquals(params.serverAddr, parceled.serverAddr);
+        assertEquals(params.linkMtu, parceled.linkMtu);
+        assertEquals(params.excludedAddrs, parceled.excludedAddrs);
+        assertEquals(params.metered, parceled.metered);
+
+        // Ensure that we do not miss any field if added in the future
+        final long numFields = Arrays.stream(DhcpServingParams.class.getDeclaredFields())
+                .filter(f -> !Modifier.isStatic(f.getModifiers()))
+                .count();
+        assertEquals(7, numFields);
+    }
+
+    private static int[] toIntArray(Collection<Inet4Address> addrs) {
+        return addrs.stream().mapToInt(NetworkUtils::inet4AddressToIntHTH).toArray();
+    }
+
     private static <T> void assertContains(@NonNull Set<T> set, @NonNull Set<T> subset) {
         for (final T elem : subset) {
             assertContains(set, elem);