RESTRICT AUTOMERGE: Port "Exempt adb socket for hostside VpnTest" to Cts 8.1

https://android-review.googlesource.com/c/platform/cts/+/833600

Change-Id: Id6f986aacc3cadf713ebbc8305ca535b861390fc
Bug: 119382723

tests/cts/hostside/app/Android.mk

@@ -19,7 +19,8 @@ LOCAL_PATH := $(call my-dir)
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_TAGS := tests
-LOCAL_SDK_VERSION := current
+#LOCAL_SDK_VERSION := current
+LOCAL_PRIVATE_PLATFORM_APIS := true
 LOCAL_STATIC_JAVA_LIBRARIES := compatibility-device-util ctstestrunner ub-uiautomator \
         CtsHostsideNetworkTestsAidl
 

tests/cts/hostside/app/src/com/android/cts/net/hostside/VpnTest.java

@@ -29,6 +29,7 @@ import android.net.NetworkRequest;
 import android.net.VpnService;
 import android.os.ParcelFileDescriptor;
 import android.os.Process;
+import android.os.SystemProperties;
 import android.support.test.uiautomator.UiDevice;
 import android.support.test.uiautomator.UiObject;
 import android.support.test.uiautomator.UiObjectNotFoundException;
@@ -537,6 +538,14 @@ public class VpnTest extends InstrumentationTestCase {
 
     public void testDefault() throws Exception {
         if (!supportedHardware()) return;
+        // If adb TCP port opened, this test may running by adb over network.
+        // All of socket would be destroyed in this test. So this test don't
+        // support adb over network, see b/119382723.
+        if (SystemProperties.getInt("persist.adb.tcp.port", -1) > -1
+                || SystemProperties.getInt("service.adb.tcp.port", -1) > -1) {
+            Log.i(TAG, "adb is running over the network, so skip this test");
+            return;
+        }
 
         FileDescriptor fd = openSocketFdInOtherApp(TEST_HOST, 80, TIMEOUT_MS);
 
@@ -554,6 +563,7 @@ public class VpnTest extends InstrumentationTestCase {
 
         FileDescriptor fd = openSocketFdInOtherApp(TEST_HOST, 80, TIMEOUT_MS);
 
+        // Shell app must not be put in here or it would kill the ADB-over-network use case
         String allowedApps = mRemoteSocketFactoryClient.getPackageName() + "," + mPackageName;
         startVpn(new String[] {"192.0.2.2/32", "2001:db8:1:2::ffe/128"},
                  new String[] {"192.0.2.0/24", "2001:db8::/32"},
@@ -571,6 +581,12 @@ public class VpnTest extends InstrumentationTestCase {
         FileDescriptor remoteFd = openSocketFdInOtherApp(TEST_HOST, 80, TIMEOUT_MS);
 
         String disallowedApps = mRemoteSocketFactoryClient.getPackageName() + "," + mPackageName;
+        // If adb TCP port opened, this test may running by adb over TCP.
+        // Add com.android.shell appllication into blacklist to exclude adb socket for VPN test,
+        // see b/119382723.
+        // Note: The test don't support running adb over network for root device
+        disallowedApps = disallowedApps + ",com.android.shell";
+        Log.i(TAG, "Append shell app to disallowedApps: " + disallowedApps);
         startVpn(new String[] {"192.0.2.2/32", "2001:db8:1:2::ffe/128"},
                  new String[] {"192.0.2.0/24", "2001:db8::/32"},
                  "", disallowedApps);