Split NetworkUtils and NetworkUtilsInternal
NetworkUtils is planned to move to a dedicated JAR for connectivity
classes, while NetworkUtilsInternal would stay in the
frameworks-minus-apex JAR, in the com.android.internal.net package.
Bug: 171540887
Test: m, boots, wifi working
atest FrameworksNetTests
Change-Id: I3d38d72ad23a4bf84af823c7baeb6fed25c0665f
diff --git a/core/java/android/net/NetworkUtils.java b/core/java/android/net/NetworkUtils.java
index a0faafa..2e9be6f 100644
--- a/core/java/android/net/NetworkUtils.java
+++ b/core/java/android/net/NetworkUtils.java
@@ -16,14 +16,9 @@
package android.net;
-import static android.system.OsConstants.AF_INET;
-import static android.system.OsConstants.AF_INET6;
-
-import android.annotation.NonNull;
import android.compat.annotation.UnsupportedAppUsage;
import android.os.Build;
import android.system.ErrnoException;
-import android.system.Os;
import android.util.Log;
import android.util.Pair;
@@ -156,14 +151,6 @@
public static native Network getDnsNetwork() throws ErrnoException;
/**
- * Allow/Disallow creating AF_INET/AF_INET6 sockets and DNS lookups for current process.
- *
- * @param allowNetworking whether to allow or disallow creating AF_INET/AF_INET6 sockets
- * and DNS lookups.
- */
- public static native void setAllowNetworkingForProcess(boolean allowNetworking);
-
- /**
* Get the tcp repair window associated with the {@code fd}.
*
* @param fd the tcp socket's {@link FileDescriptor}.
@@ -452,60 +439,4 @@
return routedIPCount;
}
- private static final int[] ADDRESS_FAMILIES = new int[] {AF_INET, AF_INET6};
-
- /**
- * Returns true if the hostname is weakly validated.
- * @param hostname Name of host to validate.
- * @return True if it's a valid-ish hostname.
- *
- * @hide
- */
- public static boolean isWeaklyValidatedHostname(@NonNull String hostname) {
- // TODO(b/34953048): Use a validation method that permits more accurate,
- // but still inexpensive, checking of likely valid DNS hostnames.
- final String weakHostnameRegex = "^[a-zA-Z0-9_.-]+$";
- if (!hostname.matches(weakHostnameRegex)) {
- return false;
- }
-
- for (int address_family : ADDRESS_FAMILIES) {
- if (Os.inet_pton(address_family, hostname) != null) {
- return false;
- }
- }
-
- return true;
- }
-
- /**
- * Safely multiple a value by a rational.
- * <p>
- * Internally it uses integer-based math whenever possible, but switches
- * over to double-based math if values would overflow.
- * @hide
- */
- public static long multiplySafeByRational(long value, long num, long den) {
- if (den == 0) {
- throw new ArithmeticException("Invalid Denominator");
- }
- long x = value;
- long y = num;
-
- // Logic shamelessly borrowed from Math.multiplyExact()
- long r = x * y;
- long ax = Math.abs(x);
- long ay = Math.abs(y);
- if (((ax | ay) >>> 31 != 0)) {
- // Some bits greater than 2^31 that might cause overflow
- // Check the result using the divide operator
- // and check for the special case of Long.MIN_VALUE * -1
- if (((y != 0) && (r / y != x)) ||
- (x == Long.MIN_VALUE && y == -1)) {
- // Use double math to avoid overflowing
- return (long) (((double) num / den) * value);
- }
- }
- return r / den;
- }
}
diff --git a/core/jni/android_net_NetUtils.cpp b/core/jni/android_net_NetUtils.cpp
index 8d4c4e5..2155246 100644
--- a/core/jni/android_net_NetUtils.cpp
+++ b/core/jni/android_net_NetUtils.cpp
@@ -1,5 +1,5 @@
/*
- * Copyright 2008, The Android Open Source Project
+ * Copyright 2020, 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.
@@ -28,7 +28,6 @@
#include <netinet/udp.h>
#include <DnsProxydProtocol.h> // NETID_USE_LOCAL_NAMESERVERS
-#include <android_runtime/AndroidRuntime.h>
#include <cutils/properties.h>
#include <nativehelper/JNIPlatformHelp.h>
#include <nativehelper/ScopedLocalRef.h>
@@ -226,11 +225,6 @@
class_Network, ctor, dnsNetId & ~NETID_USE_LOCAL_NAMESERVERS, privateDnsBypass);
}
-static void android_net_utils_setAllowNetworkingForProcess(JNIEnv *env, jobject thiz,
- jboolean hasConnectivity) {
- setAllowNetworkingForProcess(hasConnectivity == JNI_TRUE);
-}
-
static jobject android_net_utils_getTcpRepairWindow(JNIEnv *env, jobject thiz, jobject javaFd) {
if (javaFd == NULL) {
jniThrowNullPointerException(env, NULL);
@@ -288,7 +282,6 @@
{ "resNetworkResult", "(Ljava/io/FileDescriptor;)Landroid/net/DnsResolver$DnsResponse;", (void*) android_net_utils_resNetworkResult },
{ "resNetworkCancel", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_resNetworkCancel },
{ "getDnsNetwork", "()Landroid/net/Network;", (void*) android_net_utils_getDnsNetwork },
- { "setAllowNetworkingForProcess", "(Z)V", (void *)android_net_utils_setAllowNetworkingForProcess },
};
// clang-format on
diff --git a/tests/net/java/android/net/NetworkUtilsTest.java b/tests/net/java/android/net/NetworkUtilsTest.java
index 3158cc8..7748288 100644
--- a/tests/net/java/android/net/NetworkUtilsTest.java
+++ b/tests/net/java/android/net/NetworkUtilsTest.java
@@ -16,24 +16,10 @@
package android.net;
-import static android.system.OsConstants.AF_INET;
-import static android.system.OsConstants.AF_INET6;
-import static android.system.OsConstants.AF_UNIX;
-import static android.system.OsConstants.EPERM;
-import static android.system.OsConstants.SOCK_DGRAM;
-import static android.system.OsConstants.SOCK_STREAM;
-
import static junit.framework.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-import android.system.ErrnoException;
-import android.system.Os;
-
import androidx.test.runner.AndroidJUnit4;
-import libcore.io.IoUtils;
-
import org.junit.Test;
import org.junit.runner.RunWith;
@@ -139,50 +125,4 @@
assertEquals(BigInteger.valueOf(7l - 4 + 4 + 16 + 65536),
NetworkUtils.routedIPv6AddressCount(set));
}
-
- private static void expectSocketSuccess(String msg, int domain, int type) {
- try {
- IoUtils.closeQuietly(Os.socket(domain, type, 0));
- } catch (ErrnoException e) {
- fail(msg + e.getMessage());
- }
- }
-
- private static void expectSocketPemissionError(String msg, int domain, int type) {
- try {
- IoUtils.closeQuietly(Os.socket(domain, type, 0));
- fail(msg);
- } catch (ErrnoException e) {
- assertEquals(msg, e.errno, EPERM);
- }
- }
-
- private static void expectHasNetworking() {
- expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
- AF_UNIX, SOCK_STREAM);
- expectSocketSuccess("Creating a AF_INET socket shouldn't have thrown ErrnoException",
- AF_INET, SOCK_DGRAM);
- expectSocketSuccess("Creating a AF_INET6 socket shouldn't have thrown ErrnoException",
- AF_INET6, SOCK_DGRAM);
- }
-
- private static void expectNoNetworking() {
- expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
- AF_UNIX, SOCK_STREAM);
- expectSocketPemissionError(
- "Creating a AF_INET socket should have thrown ErrnoException(EPERM)",
- AF_INET, SOCK_DGRAM);
- expectSocketPemissionError(
- "Creating a AF_INET6 socket should have thrown ErrnoException(EPERM)",
- AF_INET6, SOCK_DGRAM);
- }
-
- @Test
- public void testSetAllowNetworkingForProcess() {
- expectHasNetworking();
- NetworkUtils.setAllowNetworkingForProcess(false);
- expectNoNetworking();
- NetworkUtils.setAllowNetworkingForProcess(true);
- expectHasNetworking();
- }
}
diff --git a/tests/net/java/com/android/internal/net/NetworkUtilsInternalTest.java b/tests/net/java/com/android/internal/net/NetworkUtilsInternalTest.java
new file mode 100644
index 0000000..3cfecd5
--- /dev/null
+++ b/tests/net/java/com/android/internal/net/NetworkUtilsInternalTest.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2015 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.internal.net;
+
+import static android.system.OsConstants.AF_INET;
+import static android.system.OsConstants.AF_INET6;
+import static android.system.OsConstants.AF_UNIX;
+import static android.system.OsConstants.EPERM;
+import static android.system.OsConstants.SOCK_DGRAM;
+import static android.system.OsConstants.SOCK_STREAM;
+
+import static junit.framework.Assert.assertEquals;
+
+import static org.junit.Assert.fail;
+
+import android.system.ErrnoException;
+import android.system.Os;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import libcore.io.IoUtils;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@androidx.test.filters.SmallTest
+public class NetworkUtilsInternalTest {
+
+ private static void expectSocketSuccess(String msg, int domain, int type) {
+ try {
+ IoUtils.closeQuietly(Os.socket(domain, type, 0));
+ } catch (ErrnoException e) {
+ fail(msg + e.getMessage());
+ }
+ }
+
+ private static void expectSocketPemissionError(String msg, int domain, int type) {
+ try {
+ IoUtils.closeQuietly(Os.socket(domain, type, 0));
+ fail(msg);
+ } catch (ErrnoException e) {
+ assertEquals(msg, e.errno, EPERM);
+ }
+ }
+
+ private static void expectHasNetworking() {
+ expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
+ AF_UNIX, SOCK_STREAM);
+ expectSocketSuccess("Creating a AF_INET socket shouldn't have thrown ErrnoException",
+ AF_INET, SOCK_DGRAM);
+ expectSocketSuccess("Creating a AF_INET6 socket shouldn't have thrown ErrnoException",
+ AF_INET6, SOCK_DGRAM);
+ }
+
+ private static void expectNoNetworking() {
+ expectSocketSuccess("Creating a UNIX socket should not have thrown ErrnoException",
+ AF_UNIX, SOCK_STREAM);
+ expectSocketPemissionError(
+ "Creating a AF_INET socket should have thrown ErrnoException(EPERM)",
+ AF_INET, SOCK_DGRAM);
+ expectSocketPemissionError(
+ "Creating a AF_INET6 socket should have thrown ErrnoException(EPERM)",
+ AF_INET6, SOCK_DGRAM);
+ }
+
+ @Test
+ public void testSetAllowNetworkingForProcess() {
+ expectHasNetworking();
+ NetworkUtilsInternal.setAllowNetworkingForProcess(false);
+ expectNoNetworking();
+ NetworkUtilsInternal.setAllowNetworkingForProcess(true);
+ expectHasNetworking();
+ }
+}
diff --git a/tests/net/java/com/android/server/net/NetworkStatsCollectionTest.java b/tests/net/java/com/android/server/net/NetworkStatsCollectionTest.java
index fb0cfc0..89146f9 100644
--- a/tests/net/java/com/android/server/net/NetworkStatsCollectionTest.java
+++ b/tests/net/java/com/android/server/net/NetworkStatsCollectionTest.java
@@ -23,11 +23,11 @@
import static android.net.NetworkStats.UID_ALL;
import static android.net.NetworkStatsHistory.FIELD_ALL;
import static android.net.NetworkTemplate.buildTemplateMobileAll;
-import static android.net.NetworkUtils.multiplySafeByRational;
import static android.os.Process.myUid;
import static android.text.format.DateUtils.HOUR_IN_MILLIS;
import static android.text.format.DateUtils.MINUTE_IN_MILLIS;
+import static com.android.internal.net.NetworkUtilsInternal.multiplySafeByRational;
import static com.android.testutils.MiscAsserts.assertThrows;
import static org.junit.Assert.assertArrayEquals;