Unbreak testStartUsingNetworkFeature_enableHipri failure

aosp/1261619 break legacy API that only supported for SDK which is
smaller than android M, caller need to have network stack permission
to request network with legacy type. Fix failure by whitelist permission
check for the caller who built with order SDK(< M).

Bug: 152229492
Test: atest CtsTetheringTest
      atest ConnectivityManagerLegacyTest# \
      testStartUsingNetworkFeature_enableHipri

Change-Id: I02504c0eed10ee4e08c8fbf032951022255ba5fa
Merged-In: I367dff0429f26f266282300edc38637b55eece38
(cherry picked from commit b1c8acf0d6ba1fe35d8e81673d2c5c24fa2fea79)

1 files changed, 15 insertions, 1 deletions

diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 237a961fd338..5d350be5b0c4 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -63,6 +63,7 @@ import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.database.ContentObserver;
 import android.net.CaptivePortal;
@@ -5405,12 +5406,25 @@ public class ConnectivityService extends IConnectivityManager.Stub
         }
     }
 
+    private boolean checkUnsupportedStartingFrom(int version, String callingPackageName) {
+        final PackageManager pm = mContext.getPackageManager();
+        final int userId = UserHandle.getCallingUserId();
+        try {
+            final int callingVersion = pm.getApplicationInfoAsUser(
+                    callingPackageName, 0 /* flags */, userId).targetSdkVersion;
+            if (callingVersion < version) return false;
+        } catch (PackageManager.NameNotFoundException e) { }
+        return true;
+    }
+
     @Override
     public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities,
             Messenger messenger, int timeoutMs, IBinder binder, int legacyType,
             @NonNull String callingPackageName) {
         if (legacyType != TYPE_NONE && !checkNetworkStackPermission()) {
-            throw new SecurityException("Insufficient permissions to specify legacy type");
+            if (checkUnsupportedStartingFrom(Build.VERSION_CODES.M, callingPackageName)) {
+                throw new SecurityException("Insufficient permissions to specify legacy type");
+            }
         }
         final int callingUid = Binder.getCallingUid();
         final NetworkRequest.Type type = (networkCapabilities == null)