Merge "Move Inet[4]AddressUtils to libs/net" into rvc-dev

19 files changed, 37 insertions, 239 deletions

diff --git a/Android.bp b/Android.bp
index a671567..6ccbd18 100644
--- a/Android.bp
+++ b/Android.bp
@@ -90,6 +90,7 @@ java_defaults {
         "netd_aidl_interface-java",
         "netlink-client",
         "networkstack-client",
+        "net-utils-framework-common",
         "datastallprotosnano",
         "statsprotos",
         "captiveportal-lib",
diff --git a/jarjar-rules-shared.txt b/jarjar-rules-shared.txt
index 7953f93..c4f4602 100644
--- a/jarjar-rules-shared.txt
+++ b/jarjar-rules-shared.txt
@@ -3,8 +3,8 @@ rule com.android.net.module.util.** com.android.networkstack.util.@1
 
 rule com.android.internal.util.** android.net.networkstack.util.@1
 
-rule android.net.shared.Inet4AddressUtils* android.net.networkstack.shared.Inet4AddressUtils@1
-rule android.net.shared.InetAddressUtils* android.net.networkstack.shared.InetAddressUtils@1
+# Classes from net-utils-framework-common
+rule com.android.net.module.util.** com.android.networkstack.util.@1
 
 # Ignore DhcpResultsParcelable, but jarjar DhcpResults
 # TODO: move DhcpResults into services.net and delete from here
diff --git a/src/android/net/dhcp/DhcpLease.java b/src/android/net/dhcp/DhcpLease.java
index 3226f28..0b9cd7c 100644
--- a/src/android/net/dhcp/DhcpLease.java
+++ b/src/android/net/dhcp/DhcpLease.java
@@ -16,7 +16,7 @@
 
 package android.net.dhcp;
 
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
+import static com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH;
 
 import android.net.MacAddress;
 import android.os.SystemClock;
diff --git a/src/android/net/dhcp/DhcpLeaseRepository.java b/src/android/net/dhcp/DhcpLeaseRepository.java
index b7a2572..8420996 100644
--- a/src/android/net/dhcp/DhcpLeaseRepository.java
+++ b/src/android/net/dhcp/DhcpLeaseRepository.java
@@ -18,10 +18,10 @@ package android.net.dhcp;
 
 import static android.net.dhcp.DhcpLease.EXPIRATION_NEVER;
 import static android.net.dhcp.DhcpLease.inet4AddrToString;
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
-import static android.net.shared.Inet4AddressUtils.prefixLengthToV4NetmaskIntHTH;
 
+import static com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH;
+import static com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH;
+import static com.android.net.module.util.Inet4AddressUtils.prefixLengthToV4NetmaskIntHTH;
 import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_ANY;
 import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_BITS;
 
diff --git a/src/android/net/dhcp/DhcpPacket.java b/src/android/net/dhcp/DhcpPacket.java
index d022973..3915740 100644
--- a/src/android/net/dhcp/DhcpPacket.java
+++ b/src/android/net/dhcp/DhcpPacket.java
@@ -22,7 +22,6 @@ import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_ANY;
 import android.net.DhcpResults;
 import android.net.LinkAddress;
 import android.net.metrics.DhcpErrorEvent;
-import android.net.shared.Inet4AddressUtils;
 import android.os.Build;
 import android.os.SystemProperties;
 import android.system.OsConstants;
@@ -31,6 +30,7 @@ import android.text.TextUtils;
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
 
+import com.android.net.module.util.Inet4AddressUtils;
 import com.android.networkstack.apishim.common.ShimUtils;
 
 import java.io.UnsupportedEncodingException;
diff --git a/src/android/net/dhcp/DhcpServer.java b/src/android/net/dhcp/DhcpServer.java
index 55b1f28..6c95b5a 100644
--- a/src/android/net/dhcp/DhcpServer.java
+++ b/src/android/net/dhcp/DhcpServer.java
@@ -23,8 +23,6 @@ import static android.net.dhcp.DhcpPacket.ENCAP_BOOTP;
 import static android.net.dhcp.IDhcpServer.STATUS_INVALID_ARGUMENT;
 import static android.net.dhcp.IDhcpServer.STATUS_SUCCESS;
 import static android.net.dhcp.IDhcpServer.STATUS_UNKNOWN_ERROR;
-import static android.net.shared.Inet4AddressUtils.getBroadcastAddress;
-import static android.net.shared.Inet4AddressUtils.getPrefixMaskAsInet4Address;
 import static android.net.util.NetworkStackUtils.DHCP_RAPID_COMMIT_VERSION;
 import static android.provider.DeviceConfig.NAMESPACE_CONNECTIVITY;
 import static android.system.OsConstants.AF_INET;
@@ -36,6 +34,8 @@ import static android.system.OsConstants.SO_BROADCAST;
 import static android.system.OsConstants.SO_REUSEADDR;
 
 import static com.android.internal.util.TrafficStatsConstants.TAG_SYSTEM_DHCP_SERVER;
+import static com.android.net.module.util.Inet4AddressUtils.getBroadcastAddress;
+import static com.android.net.module.util.Inet4AddressUtils.getPrefixMaskAsInet4Address;
 import static com.android.server.util.NetworkStackConstants.INFINITE_LEASE;
 import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_ALL;
 import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_ANY;
diff --git a/src/android/net/dhcp/DhcpServingParams.java b/src/android/net/dhcp/DhcpServingParams.java
index 77cdf7a..97db6ae 100644
--- a/src/android/net/dhcp/DhcpServingParams.java
+++ b/src/android/net/dhcp/DhcpServingParams.java
@@ -16,9 +16,8 @@
 
 package android.net.dhcp;
 
-import static android.net.shared.Inet4AddressUtils.getPrefixMaskAsInet4Address;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
-
+import static com.android.net.module.util.Inet4AddressUtils.getPrefixMaskAsInet4Address;
+import static com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH;
 import static com.android.server.util.NetworkStackConstants.INFINITE_LEASE;
 import static com.android.server.util.NetworkStackConstants.IPV4_MAX_MTU;
 import static com.android.server.util.NetworkStackConstants.IPV4_MIN_MTU;
@@ -27,12 +26,13 @@ import static java.lang.Integer.toUnsignedLong;
 
 import android.net.IpPrefix;
 import android.net.LinkAddress;
-import android.net.shared.Inet4AddressUtils;
 import android.util.ArraySet;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import com.android.net.module.util.Inet4AddressUtils;
+
 import java.net.Inet4Address;
 import java.util.Arrays;
 import java.util.Collections;
diff --git a/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreDatabase.java b/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreDatabase.java
index c1596ea..9b1be06 100644
--- a/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreDatabase.java
+++ b/src/com/android/server/connectivity/ipmemorystore/IpMemoryStoreDatabase.java
@@ -16,8 +16,8 @@
 
 package com.android.server.connectivity.ipmemorystore;
 
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
+import static com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH;
+import static com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH;
 
 import android.content.ContentValues;
 import android.content.Context;
diff --git a/src/com/android/server/util/NetworkStackConstants.java b/src/com/android/server/util/NetworkStackConstants.java
index dbba7f3..6ecc84c 100644
--- a/src/com/android/server/util/NetworkStackConstants.java
+++ b/src/com/android/server/util/NetworkStackConstants.java
@@ -16,7 +16,7 @@
 
 package com.android.server.util;
 
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
+import static com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH;
 
 import java.net.Inet4Address;
 
diff --git a/tests/integration/Android.bp b/tests/integration/Android.bp
index e924d3a..1a985a9 100644
--- a/tests/integration/Android.bp
+++ b/tests/integration/Android.bp
@@ -92,7 +92,11 @@ android_test {
     test_suites: ["device-tests", "mts"],
     test_config: "AndroidTest_Coverage.xml",
     defaults: ["NetworkStackIntegrationTestsJniDefaults"],
-    static_libs: ["NetworkStackTestsLib", "NetworkStackIntegrationTestsLib"],
+    static_libs: [
+        "NetworkStackTestsLib",
+        "NetworkStackIntegrationTestsLib",
+        "NetworkStaticLibTestsLib",
+    ],
     compile_multilib: "both",
     manifest: "AndroidManifest_coverage.xml",
 }
diff --git a/tests/integration/src/android/net/ip/IpClientIntegrationTest.java b/tests/integration/src/android/net/ip/IpClientIntegrationTest.java
index f2cc2c6..150fd00 100644
--- a/tests/integration/src/android/net/ip/IpClientIntegrationTest.java
+++ b/tests/integration/src/android/net/ip/IpClientIntegrationTest.java
@@ -26,13 +26,13 @@ import static android.net.dhcp.DhcpPacket.INADDR_BROADCAST;
 import static android.net.dhcp.DhcpPacket.INFINITE_LEASE;
 import static android.net.dhcp.DhcpResultsParcelableUtil.fromStableParcelable;
 import static android.net.ipmemorystore.Status.SUCCESS;
-import static android.net.shared.Inet4AddressUtils.getBroadcastAddress;
-import static android.net.shared.Inet4AddressUtils.getPrefixMaskAsInet4Address;
 import static android.system.OsConstants.ETH_P_IPV6;
 import static android.system.OsConstants.IFA_F_TEMPORARY;
 import static android.system.OsConstants.IPPROTO_ICMPV6;
 import static android.system.OsConstants.IPPROTO_TCP;
 
+import static com.android.net.module.util.Inet4AddressUtils.getBroadcastAddress;
+import static com.android.net.module.util.Inet4AddressUtils.getPrefixMaskAsInet4Address;
 import static com.android.server.util.NetworkStackConstants.ARP_REPLY;
 import static com.android.server.util.NetworkStackConstants.ARP_REQUEST;
 import static com.android.server.util.NetworkStackConstants.ETHER_ADDR_LEN;
diff --git a/tests/unit/src/android/net/apf/ApfTest.java b/tests/unit/src/android/net/apf/ApfTest.java
index d85d059..6e969ec 100644
--- a/tests/unit/src/android/net/apf/ApfTest.java
+++ b/tests/unit/src/android/net/apf/ApfTest.java
@@ -51,7 +51,6 @@ import android.net.ip.IIpClientCallbacks;
 import android.net.ip.IpClient.IpClientCallbacksWrapper;
 import android.net.metrics.IpConnectivityLog;
 import android.net.metrics.RaEvent;
-import android.net.shared.Inet4AddressUtils;
 import android.net.util.InterfaceParams;
 import android.net.util.SharedLog;
 import android.os.ConditionVariable;
@@ -67,6 +66,7 @@ import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
 import com.android.internal.util.HexDump;
+import com.android.net.module.util.Inet4AddressUtils;
 import com.android.networkstack.apishim.NetworkInformationShimImpl;
 import com.android.server.networkstack.tests.R;
 import com.android.server.util.NetworkStackConstants;
diff --git a/tests/unit/src/android/net/dhcp/DhcpLeaseRepositoryTest.java b/tests/unit/src/android/net/dhcp/DhcpLeaseRepositoryTest.java
index 3a6a890..81685ef 100644
--- a/tests/unit/src/android/net/dhcp/DhcpLeaseRepositoryTest.java
+++ b/tests/unit/src/android/net/dhcp/DhcpLeaseRepositoryTest.java
@@ -20,8 +20,8 @@ import static android.net.InetAddresses.parseNumericAddress;
 import static android.net.dhcp.DhcpLease.HOSTNAME_NONE;
 import static android.net.dhcp.DhcpLeaseRepository.CLIENTID_UNSPEC;
 import static android.net.dhcp.DhcpLeaseRepository.INETADDR_UNSPEC;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
 
+import static com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH;
 import static com.android.server.util.NetworkStackConstants.IPV4_ADDR_ANY;
 
 import static org.junit.Assert.assertEquals;
diff --git a/tests/unit/src/android/net/dhcp/DhcpLeaseTest.kt b/tests/unit/src/android/net/dhcp/DhcpLeaseTest.kt
index 2971f65..743418c 100644
--- a/tests/unit/src/android/net/dhcp/DhcpLeaseTest.kt
+++ b/tests/unit/src/android/net/dhcp/DhcpLeaseTest.kt
@@ -18,7 +18,7 @@ package android.net.dhcp
 
 import android.net.InetAddresses.parseNumericAddress
 import android.net.MacAddress
-import android.net.shared.Inet4AddressUtils.intToInet4AddressHTH
+import com.android.net.module.util.Inet4AddressUtils.intToInet4AddressHTH
 import androidx.test.filters.SmallTest
 import androidx.test.runner.AndroidJUnit4
 import com.android.testutils.assertFieldCountEquals
diff --git a/tests/unit/src/android/net/dhcp/DhcpPacketTest.java b/tests/unit/src/android/net/dhcp/DhcpPacketTest.java
index c565238..9d2a630 100644
--- a/tests/unit/src/android/net/dhcp/DhcpPacketTest.java
+++ b/tests/unit/src/android/net/dhcp/DhcpPacketTest.java
@@ -34,8 +34,9 @@ import static android.net.dhcp.DhcpPacket.ENCAP_L3;
 import static android.net.dhcp.DhcpPacket.INADDR_ANY;
 import static android.net.dhcp.DhcpPacket.INFINITE_LEASE;
 import static android.net.dhcp.DhcpPacket.ParseException;
-import static android.net.shared.Inet4AddressUtils.getBroadcastAddress;
-import static android.net.shared.Inet4AddressUtils.getPrefixMaskAsInet4Address;
+
+import static com.android.net.module.util.Inet4AddressUtils.getBroadcastAddress;
+import static com.android.net.module.util.Inet4AddressUtils.getPrefixMaskAsInet4Address;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
diff --git a/tests/unit/src/android/net/dhcp/DhcpServerTest.java b/tests/unit/src/android/net/dhcp/DhcpServerTest.java
index 2e8a3c2..d313b94 100644
--- a/tests/unit/src/android/net/dhcp/DhcpServerTest.java
+++ b/tests/unit/src/android/net/dhcp/DhcpServerTest.java
@@ -23,9 +23,10 @@ import static android.net.dhcp.DhcpPacket.INADDR_ANY;
 import static android.net.dhcp.DhcpPacket.INADDR_BROADCAST;
 import static android.net.dhcp.DhcpServer.CMD_RECEIVE_PACKET;
 import static android.net.dhcp.IDhcpServer.STATUS_SUCCESS;
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
 import static android.net.util.NetworkStackUtils.DHCP_RAPID_COMMIT_VERSION;
 
+import static com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH;
+
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertNotNull;
@@ -51,12 +52,12 @@ import android.net.dhcp.DhcpLeaseRepository.InvalidAddressException;
 import android.net.dhcp.DhcpLeaseRepository.OutOfAddressesException;
 import android.net.dhcp.DhcpServer.Clock;
 import android.net.dhcp.DhcpServer.Dependencies;
-import android.net.shared.Inet4AddressUtils;
 import android.net.util.SharedLog;
 import android.testing.AndroidTestingRunner;
 
 import androidx.test.filters.SmallTest;
 
+import com.android.net.module.util.Inet4AddressUtils;
 import com.android.testutils.HandlerUtilsKt;
 
 import org.junit.After;
diff --git a/tests/unit/src/android/net/dhcp/DhcpServingParamsTest.java b/tests/unit/src/android/net/dhcp/DhcpServingParamsTest.java
index 1ce2f82..6506eba 100644
--- a/tests/unit/src/android/net/dhcp/DhcpServingParamsTest.java
+++ b/tests/unit/src/android/net/dhcp/DhcpServingParamsTest.java
@@ -18,7 +18,8 @@ package android.net.dhcp;
 
 import static android.net.InetAddresses.parseNumericAddress;
 import static android.net.dhcp.DhcpServingParams.MTU_UNSET;
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
+
+import static com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH;
 
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertFalse;
@@ -28,11 +29,11 @@ import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.net.LinkAddress;
 import android.net.dhcp.DhcpServingParams.InvalidParameterException;
-import android.net.shared.Inet4AddressUtils;
 
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import com.android.net.module.util.Inet4AddressUtils;
 import com.android.testutils.MiscAssertsKt;
 
 import org.junit.Before;
diff --git a/tests/unit/src/android/net/shared/Inet4AddressUtilsTest.java b/tests/unit/src/android/net/shared/Inet4AddressUtilsTest.java
deleted file mode 100644
index 35f8c79..0000000
--- a/tests/unit/src/android/net/shared/Inet4AddressUtilsTest.java
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * 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 android.net.shared;
-
-import static android.net.shared.Inet4AddressUtils.getBroadcastAddress;
-import static android.net.shared.Inet4AddressUtils.getImplicitNetmask;
-import static android.net.shared.Inet4AddressUtils.getPrefixMaskAsInet4Address;
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH;
-import static android.net.shared.Inet4AddressUtils.inet4AddressToIntHTL;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTH;
-import static android.net.shared.Inet4AddressUtils.intToInet4AddressHTL;
-import static android.net.shared.Inet4AddressUtils.netmaskToPrefixLength;
-import static android.net.shared.Inet4AddressUtils.prefixLengthToV4NetmaskIntHTH;
-import static android.net.shared.Inet4AddressUtils.prefixLengthToV4NetmaskIntHTL;
-
-import static junit.framework.Assert.assertEquals;
-
-import static org.junit.Assert.fail;
-
-import android.net.InetAddresses;
-
-import androidx.test.filters.SmallTest;
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import java.net.Inet4Address;
-
-@RunWith(AndroidJUnit4.class)
-@SmallTest
-public class Inet4AddressUtilsTest {
-
-    @Test
-    public void testInet4AddressToIntHTL() {
-        assertEquals(0, inet4AddressToIntHTL(ipv4Address("0.0.0.0")));
-        assertEquals(0x000080ff, inet4AddressToIntHTL(ipv4Address("255.128.0.0")));
-        assertEquals(0x0080ff0a, inet4AddressToIntHTL(ipv4Address("10.255.128.0")));
-        assertEquals(0x00feff0a, inet4AddressToIntHTL(ipv4Address("10.255.254.0")));
-        assertEquals(0xfeffa8c0, inet4AddressToIntHTL(ipv4Address("192.168.255.254")));
-        assertEquals(0xffffa8c0, inet4AddressToIntHTL(ipv4Address("192.168.255.255")));
-    }
-
-    @Test
-    public void testIntToInet4AddressHTL() {
-        assertEquals(ipv4Address("0.0.0.0"), intToInet4AddressHTL(0));
-        assertEquals(ipv4Address("255.128.0.0"), intToInet4AddressHTL(0x000080ff));
-        assertEquals(ipv4Address("10.255.128.0"), intToInet4AddressHTL(0x0080ff0a));
-        assertEquals(ipv4Address("10.255.254.0"), intToInet4AddressHTL(0x00feff0a));
-        assertEquals(ipv4Address("192.168.255.254"), intToInet4AddressHTL(0xfeffa8c0));
-        assertEquals(ipv4Address("192.168.255.255"), intToInet4AddressHTL(0xffffa8c0));
-    }
-
-    @Test
-    public void testInet4AddressToIntHTH() {
-        assertEquals(0, inet4AddressToIntHTH(ipv4Address("0.0.0.0")));
-        assertEquals(0xff800000, inet4AddressToIntHTH(ipv4Address("255.128.0.0")));
-        assertEquals(0x0aff8000, inet4AddressToIntHTH(ipv4Address("10.255.128.0")));
-        assertEquals(0x0afffe00, inet4AddressToIntHTH(ipv4Address("10.255.254.0")));
-        assertEquals(0xc0a8fffe, inet4AddressToIntHTH(ipv4Address("192.168.255.254")));
-        assertEquals(0xc0a8ffff, inet4AddressToIntHTH(ipv4Address("192.168.255.255")));
-    }
-
-    @Test
-    public void testIntToInet4AddressHTH() {
-        assertEquals(ipv4Address("0.0.0.0"), intToInet4AddressHTH(0));
-        assertEquals(ipv4Address("255.128.0.0"), intToInet4AddressHTH(0xff800000));
-        assertEquals(ipv4Address("10.255.128.0"), intToInet4AddressHTH(0x0aff8000));
-        assertEquals(ipv4Address("10.255.254.0"), intToInet4AddressHTH(0x0afffe00));
-        assertEquals(ipv4Address("192.168.255.254"), intToInet4AddressHTH(0xc0a8fffe));
-        assertEquals(ipv4Address("192.168.255.255"), intToInet4AddressHTH(0xc0a8ffff));
-    }
-
-
-    @Test
-    public void testPrefixLengthToV4NetmaskIntHTL() {
-        assertEquals(0, prefixLengthToV4NetmaskIntHTL(0));
-        assertEquals(0x000080ff /* 255.128.0.0 */, prefixLengthToV4NetmaskIntHTL(9));
-        assertEquals(0x0080ffff /* 255.255.128.0 */, prefixLengthToV4NetmaskIntHTL(17));
-        assertEquals(0x00feffff /* 255.255.254.0 */, prefixLengthToV4NetmaskIntHTL(23));
-        assertEquals(0xfeffffff /* 255.255.255.254 */, prefixLengthToV4NetmaskIntHTL(31));
-        assertEquals(0xffffffff /* 255.255.255.255 */, prefixLengthToV4NetmaskIntHTL(32));
-    }
-
-    @Test
-    public void testPrefixLengthToV4NetmaskIntHTH() {
-        assertEquals(0, prefixLengthToV4NetmaskIntHTH(0));
-        assertEquals(0xff800000 /* 255.128.0.0 */, prefixLengthToV4NetmaskIntHTH(9));
-        assertEquals(0xffff8000 /* 255.255.128.0 */, prefixLengthToV4NetmaskIntHTH(17));
-        assertEquals(0xfffffe00 /* 255.255.254.0 */, prefixLengthToV4NetmaskIntHTH(23));
-        assertEquals(0xfffffffe /* 255.255.255.254 */, prefixLengthToV4NetmaskIntHTH(31));
-        assertEquals(0xffffffff /* 255.255.255.255 */, prefixLengthToV4NetmaskIntHTH(32));
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testPrefixLengthToV4NetmaskIntHTH_NegativeLength() {
-        prefixLengthToV4NetmaskIntHTH(-1);
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testPrefixLengthToV4NetmaskIntHTH_LengthTooLarge() {
-        prefixLengthToV4NetmaskIntHTH(33);
-    }
-
-    private void checkAddressMasking(String expectedAddr, String addr, int prefixLength) {
-        final int prefix = prefixLengthToV4NetmaskIntHTH(prefixLength);
-        final int addrInt = inet4AddressToIntHTH(ipv4Address(addr));
-        assertEquals(ipv4Address(expectedAddr), intToInet4AddressHTH(prefix & addrInt));
-    }
-
-    @Test
-    public void testPrefixLengthToV4NetmaskIntHTH_MaskAddr() {
-        checkAddressMasking("192.168.0.0", "192.168.128.1", 16);
-        checkAddressMasking("255.240.0.0", "255.255.255.255", 12);
-        checkAddressMasking("255.255.255.255", "255.255.255.255", 32);
-        checkAddressMasking("0.0.0.0", "255.255.255.255", 0);
-    }
-
-    @Test
-    public void testGetImplicitNetmask() {
-        assertEquals(8, getImplicitNetmask(ipv4Address("4.2.2.2")));
-        assertEquals(8, getImplicitNetmask(ipv4Address("10.5.6.7")));
-        assertEquals(16, getImplicitNetmask(ipv4Address("173.194.72.105")));
-        assertEquals(16, getImplicitNetmask(ipv4Address("172.23.68.145")));
-        assertEquals(24, getImplicitNetmask(ipv4Address("192.0.2.1")));
-        assertEquals(24, getImplicitNetmask(ipv4Address("192.168.5.1")));
-        assertEquals(32, getImplicitNetmask(ipv4Address("224.0.0.1")));
-        assertEquals(32, getImplicitNetmask(ipv4Address("255.6.7.8")));
-    }
-
-    private void assertInvalidNetworkMask(Inet4Address addr) {
-        try {
-            netmaskToPrefixLength(addr);
-            fail("Invalid netmask " + addr.getHostAddress() + " did not cause exception");
-        } catch (IllegalArgumentException expected) {
-        }
-    }
-
-    @Test
-    public void testNetmaskToPrefixLength() {
-        assertEquals(0, netmaskToPrefixLength(ipv4Address("0.0.0.0")));
-        assertEquals(9, netmaskToPrefixLength(ipv4Address("255.128.0.0")));
-        assertEquals(17, netmaskToPrefixLength(ipv4Address("255.255.128.0")));
-        assertEquals(23, netmaskToPrefixLength(ipv4Address("255.255.254.0")));
-        assertEquals(31, netmaskToPrefixLength(ipv4Address("255.255.255.254")));
-        assertEquals(32, netmaskToPrefixLength(ipv4Address("255.255.255.255")));
-
-        assertInvalidNetworkMask(ipv4Address("0.0.0.1"));
-        assertInvalidNetworkMask(ipv4Address("255.255.255.253"));
-        assertInvalidNetworkMask(ipv4Address("255.255.0.255"));
-    }
-
-    @Test
-    public void testGetPrefixMaskAsAddress() {
-        assertEquals("255.255.240.0", getPrefixMaskAsInet4Address(20).getHostAddress());
-        assertEquals("255.0.0.0", getPrefixMaskAsInet4Address(8).getHostAddress());
-        assertEquals("0.0.0.0", getPrefixMaskAsInet4Address(0).getHostAddress());
-        assertEquals("255.255.255.255", getPrefixMaskAsInet4Address(32).getHostAddress());
-    }
-
-    @Test
-    public void testGetBroadcastAddress() {
-        assertEquals("192.168.15.255",
-                getBroadcastAddress(ipv4Address("192.168.0.123"), 20).getHostAddress());
-        assertEquals("192.255.255.255",
-                getBroadcastAddress(ipv4Address("192.168.0.123"), 8).getHostAddress());
-        assertEquals("192.168.0.123",
-                getBroadcastAddress(ipv4Address("192.168.0.123"), 32).getHostAddress());
-        assertEquals("255.255.255.255",
-                getBroadcastAddress(ipv4Address("192.168.0.123"), 0).getHostAddress());
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testGetBroadcastAddress_PrefixTooLarge() {
-        getBroadcastAddress(ipv4Address("192.168.0.123"), 33);
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testGetBroadcastAddress_NegativePrefix() {
-        getBroadcastAddress(ipv4Address("192.168.0.123"), -1);
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testGetPrefixMaskAsAddress_PrefixTooLarge() {
-        getPrefixMaskAsInet4Address(33);
-    }
-
-    @Test(expected = IllegalArgumentException.class)
-    public void testGetPrefixMaskAsAddress_NegativePrefix() {
-        getPrefixMaskAsInet4Address(-1);
-    }
-
-    private Inet4Address ipv4Address(String addr) {
-        return (Inet4Address) InetAddresses.parseNumericAddress(addr);
-    }
-}
diff --git a/tests/unit/src/com/android/server/NetworkStackServiceTest.kt b/tests/unit/src/com/android/server/NetworkStackServiceTest.kt
index 9de828f..c054b3a 100644
--- a/tests/unit/src/com/android/server/NetworkStackServiceTest.kt
+++ b/tests/unit/src/com/android/server/NetworkStackServiceTest.kt
@@ -29,11 +29,11 @@ import android.net.dhcp.IDhcpServer
 import android.net.dhcp.IDhcpServerCallbacks
 import android.net.ip.IIpClientCallbacks
 import android.net.ip.IpClient
-import android.net.shared.Inet4AddressUtils.inet4AddressToIntHTH
 import android.os.Build
 import android.os.IBinder
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.SmallTest
+import com.android.net.module.util.Inet4AddressUtils.inet4AddressToIntHTH
 import com.android.server.NetworkStackService.Dependencies
 import com.android.server.NetworkStackService.NetworkStackConnector
 import com.android.server.NetworkStackService.PermissionChecker