Rename tethering jni and get the jni by its package name

tetherutiljni is renamed to com_android_networkstack_tethering_jni_util

Bug: 205088391
Test: atest TetheringTests
      atest CtsTetheringTest
      atest TetheringPrivilegedTests
Change-Id: Ifd1f4473625e33d3ebe190c9f8a2b5d54aa1ff49

Tethering/Android.bp

@@ -84,7 +84,7 @@ android_library {
 
 // Due to b/143733063, APK can't access a jni lib that is in APEX (but not in the APK).
 cc_library {
-    name: "libtetherutilsjni",
+    name: "libcom_android_networkstack_tethering_util_jni",
     sdk_version: "30",
     apex_available: [
         "//apex_available:platform", // Used by InProcessTethering
@@ -133,7 +133,7 @@ java_defaults {
     name: "TetheringAppDefaults",
     privileged: true,
     jni_libs: [
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
     resource_dirs: [
         "res",

Tethering/src/com/android/networkstack/tethering/BpfCoordinator.java

@@ -32,6 +32,7 @@ import static com.android.networkstack.tethering.BpfUtils.DOWNSTREAM;
 import static com.android.networkstack.tethering.BpfUtils.UPSTREAM;
 import static com.android.networkstack.tethering.TetheringConfiguration.DEFAULT_TETHER_OFFLOAD_POLL_INTERVAL_MS;
 import static com.android.networkstack.tethering.UpstreamNetworkState.isVcnInterface;
+import static com.android.networkstack.tethering.util.TetheringUtils.getTetheringJniLibraryName;
 
 import android.app.usage.NetworkStatsManager;
 import android.net.INetd;
@@ -99,7 +100,7 @@ public class BpfCoordinator {
     // TetherService, but for tests it needs to be either loaded here or loaded by every test.
     // TODO: is there a better way?
     static {
-        System.loadLibrary("tetherutilsjni");
+        System.loadLibrary(getTetheringJniLibraryName());
     }
 
     private static final String TAG = BpfCoordinator.class.getSimpleName();

Tethering/src/com/android/networkstack/tethering/BpfUtils.java

@@ -18,6 +18,8 @@ package com.android.networkstack.tethering;
 import static android.system.OsConstants.ETH_P_IP;
 import static android.system.OsConstants.ETH_P_IPV6;
 
+import static com.android.networkstack.tethering.util.TetheringUtils.getTetheringJniLibraryName;
+
 import android.net.util.InterfaceParams;
 
 import androidx.annotation.NonNull;
@@ -31,7 +33,7 @@ import java.io.IOException;
  */
 public class BpfUtils {
     static {
-        System.loadLibrary("tetherutilsjni");
+        System.loadLibrary(getTetheringJniLibraryName());
     }
 
     // For better code clarity when used for 'bool ingress' parameter.

Tethering/src/com/android/networkstack/tethering/util/TetheringUtils.java

@@ -21,6 +21,7 @@ import android.util.Log;
 
 import androidx.annotation.NonNull;
 
+import com.android.net.module.util.JniUtil;
 import com.android.networkstack.tethering.TetherStatsValue;
 
 import java.io.FileDescriptor;
@@ -37,13 +38,18 @@ import java.util.Objects;
  */
 public class TetheringUtils {
     static {
-        System.loadLibrary("tetherutilsjni");
+        System.loadLibrary(getTetheringJniLibraryName());
     }
 
     public static final byte[] ALL_NODES = new byte[] {
         (byte) 0xff, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
     };
 
+    /** The name should be com_android_networkstack_tethering_util_jni. */
+    public static String getTetheringJniLibraryName() {
+        return JniUtil.getJniLibraryName(TetheringUtils.class.getPackage());
+    }
+
     /**
      * Configures a socket for receiving and sending ICMPv6 neighbor advertisments.
      * @param fd the socket's {@link FileDescriptor}.

Tethering/tests/integration/Android.bp

@@ -142,7 +142,7 @@ android_test {
         "libstaticjvmtiagent",
         // For NetworkStackUtils included in NetworkStackBase
         "libnetworkstackutilsjni",
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
     compile_multilib: "both",
     manifest: "AndroidManifest_coverage.xml",

Tethering/tests/privileged/Android.bp

@@ -23,7 +23,7 @@ java_defaults {
     jni_libs: [
         "libdexmakerjvmtiagent",
         "libstaticjvmtiagent",
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
     jni_uses_sdk_apis: true,
     jarjar_rules: ":TetheringTestsJarJarRules",

Tethering/tests/privileged/src/android/net/ip/DadProxyTest.java

@@ -20,6 +20,7 @@ import static android.system.OsConstants.IPPROTO_ICMPV6;
 
 import static com.android.net.module.util.IpUtils.icmpv6Checksum;
 import static com.android.net.module.util.NetworkStackConstants.ETHER_SRC_ADDR_OFFSET;
+import static com.android.networkstack.tethering.util.TetheringUtils.getTetheringJniLibraryName;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
@@ -80,7 +81,7 @@ public class DadProxyTest {
 
     @BeforeClass
     public static void setupOnce() {
-        System.loadLibrary("tetherutilsjni");
+        System.loadLibrary(getTetheringJniLibraryName());
 
         final Instrumentation inst = InstrumentationRegistry.getInstrumentation();
         final IBinder netdIBinder =

Tethering/tests/privileged/src/com/android/networkstack/tethering/BpfMapTest.java

@@ -18,6 +18,8 @@ package com.android.networkstack.tethering;
 
 import static android.system.OsConstants.ETH_P_IPV6;
 
+import static com.android.networkstack.tethering.util.TetheringUtils.getTetheringJniLibraryName;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
@@ -59,7 +61,7 @@ public final class BpfMapTest {
 
     @BeforeClass
     public static void setupOnce() {
-        System.loadLibrary("tetherutilsjni");
+        System.loadLibrary(getTetheringJniLibraryName());
     }
 
     @Before

Tethering/tests/unit/Android.bp

@@ -75,7 +75,7 @@ java_defaults {
         // For mockito extended
         "libdexmakerjvmtiagent",
         "libstaticjvmtiagent",
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
 }
 

tests/common/Android.bp

@@ -89,7 +89,7 @@ android_test {
         "libstaticjvmtiagent",
         // For NetworkStackUtils included in NetworkStackBase
         "libnetworkstackutilsjni",
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
         // For framework tests
         "libservice-connectivity",
     ],