Merge "Move shared methods and constants from Proxy to shared lib"
diff --git a/staticlibs/framework/com/android/net/module/util/NetworkIdentityUtils.java b/staticlibs/framework/com/android/net/module/util/NetworkIdentityUtils.java
new file mode 100644
index 0000000..94e6017
--- /dev/null
+++ b/staticlibs/framework/com/android/net/module/util/NetworkIdentityUtils.java
@@ -0,0 +1,51 @@
+/*
+ * 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 com.android.net.module.util;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+
+/**
+ * Utilities to examine {@link android.net.NetworkIdentity}.
+ */
+public class NetworkIdentityUtils {
+ /**
+ * Scrub given IMSI on production builds.
+ */
+ @NonNull
+ public static String scrubSubscriberId(@Nullable String subscriberId) {
+ if (subscriberId != null) {
+ // TODO: parse this as MCC+MNC instead of hard-coding
+ return subscriberId.substring(0, Math.min(6, subscriberId.length())) + "...";
+ } else {
+ return "null";
+ }
+ }
+
+ /**
+ * Scrub given IMSI on production builds.
+ */
+ @Nullable
+ public static String[] scrubSubscriberIds(@Nullable String[] subscriberIds) {
+ if (subscriberIds == null) return null;
+ final String[] res = new String[subscriberIds.length];
+ for (int i = 0; i < res.length; i++) {
+ res[i] = scrubSubscriberId(subscriberIds[i]);
+ }
+ return res;
+ }
+}
diff --git a/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java b/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
index a227505..b656ed2 100644
--- a/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
+++ b/staticlibs/framework/com/android/net/module/util/NetworkStackConstants.java
@@ -17,6 +17,7 @@
package com.android.net.module.util;
import java.net.Inet4Address;
+import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
@@ -98,7 +99,11 @@
(byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff);
public static final Inet4Address IPV4_ADDR_ANY = makeInet4Address(
(byte) 0, (byte) 0, (byte) 0, (byte) 0);
-
+ public static final Inet6Address IPV6_ADDR_ANY = makeInet6Address(new byte[]{
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0 });
/**
* IPv6 constants.
*
@@ -182,6 +187,16 @@
}
}
+ /**
+ * Make an Inet6Address from 16 bytes in network byte order.
+ */
+ private static Inet6Address makeInet6Address(byte[] bytes) {
+ try {
+ return (Inet6Address) InetAddress.getByAddress(bytes);
+ } catch (UnknownHostException e) {
+ throw new IllegalArgumentException("addr must be 16 bytes: this should never happen");
+ }
+ }
private NetworkStackConstants() {
throw new UnsupportedOperationException("This class is not to be instantiated");
}
diff --git a/staticlibs/tests/unit/src/com/android/net/module/util/NetworkIdentityUtilsTest.kt b/staticlibs/tests/unit/src/com/android/net/module/util/NetworkIdentityUtilsTest.kt
new file mode 100644
index 0000000..2904e12
--- /dev/null
+++ b/staticlibs/tests/unit/src/com/android/net/module/util/NetworkIdentityUtilsTest.kt
@@ -0,0 +1,49 @@
+/*
+ * 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 com.android.net.module.util
+
+import androidx.test.filters.SmallTest
+import androidx.test.runner.AndroidJUnit4
+import com.android.net.module.util.NetworkIdentityUtils.scrubSubscriberId
+import com.android.net.module.util.NetworkIdentityUtils.scrubSubscriberIds
+import com.android.testutils.assertContainsStringsExactly
+import org.junit.Test
+import org.junit.runner.RunWith
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+
+@RunWith(AndroidJUnit4::class)
+@SmallTest
+class NetworkIdentityUtilsTest {
+ @Test
+ fun testScrubSubscriberId() {
+ assertEquals("123456...", scrubSubscriberId("1234567890123"))
+ assertEquals("123456...", scrubSubscriberId("1234567"))
+ assertEquals("123...", scrubSubscriberId("123"))
+ assertEquals("...", scrubSubscriberId(""))
+ assertEquals("null", scrubSubscriberId(null))
+ }
+
+ @Test
+ fun testScrubSubscriberIds() {
+ assertContainsStringsExactly(scrubSubscriberIds(arrayOf("1234567", "", null))!!,
+ "123456...", "...", "null")
+ assertContainsStringsExactly(scrubSubscriberIds(arrayOf("12345"))!!, "12345...")
+ assertContainsStringsExactly(scrubSubscriberIds(arrayOf())!!)
+ assertNull(scrubSubscriberIds(null))
+ }
+}
\ No newline at end of file