Merge "Add an error code for RoR failure due to no network"

services/core/java/com/android/server/locksettings/RebootEscrowManager.java

@@ -33,6 +33,9 @@ import android.annotation.UserIdInt;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
+import android.net.ConnectivityManager;
+import android.net.Network;
+import android.net.NetworkCapabilities;
 import android.os.Handler;
 import android.os.SystemClock;
 import android.os.SystemProperties;
@@ -126,6 +129,7 @@ class RebootEscrowManager {
             ERROR_UNLOCK_ALL_USERS,
             ERROR_PROVIDER_MISMATCH,
             ERROR_KEYSTORE_FAILURE,
+            ERROR_NO_NETWORK,
     })
     @Retention(RetentionPolicy.SOURCE)
     @interface RebootEscrowErrorCode {
@@ -139,6 +143,7 @@ class RebootEscrowManager {
     static final int ERROR_UNLOCK_ALL_USERS = 5;
     static final int ERROR_PROVIDER_MISMATCH = 6;
     static final int ERROR_KEYSTORE_FAILURE = 7;
+    static final int ERROR_NO_NETWORK = 8;
 
     private @RebootEscrowErrorCode int mLoadEscrowDataErrorCode = ERROR_NONE;
 
@@ -235,6 +240,23 @@ class RebootEscrowManager {
                     "server_based_ror_enabled", false);
         }
 
+        public boolean isNetworkConnected() {
+            final ConnectivityManager connectivityManager =
+                    mContext.getSystemService(ConnectivityManager.class);
+            if (connectivityManager == null) {
+                return false;
+            }
+
+            Network activeNetwork = connectivityManager.getActiveNetwork();
+            NetworkCapabilities networkCapabilities =
+                    connectivityManager.getNetworkCapabilities(activeNetwork);
+            return networkCapabilities != null
+                    && networkCapabilities.hasCapability(
+                            NetworkCapabilities.NET_CAPABILITY_INTERNET)
+                    && networkCapabilities.hasCapability(
+                            NetworkCapabilities.NET_CAPABILITY_VALIDATED);
+        }
+
         public Context getContext() {
             return mContext;
         }
@@ -363,7 +385,11 @@ class RebootEscrowManager {
         }
 
         Slog.w(TAG, "Failed to load reboot escrow data after " + attemptNumber + " attempts");
-        mLoadEscrowDataErrorCode = ERROR_RETRY_COUNT_EXHAUSTED;
+        if (mInjector.serverBasedResumeOnReboot() && !mInjector.isNetworkConnected()) {
+            mLoadEscrowDataErrorCode = ERROR_NO_NETWORK;
+        } else {
+            mLoadEscrowDataErrorCode = ERROR_RETRY_COUNT_EXHAUSTED;
+        }
         onGetRebootEscrowKeyFailed(users, attemptNumber);
     }
 
@@ -471,6 +497,8 @@ class RebootEscrowManager {
             mLoadEscrowDataErrorCode = ERROR_UNKNOWN;
         }
 
+        Slog.i(TAG, "Reporting RoR recovery metrics, success: " + success + ", service type: "
+                + serviceType + ", error code: " + mLoadEscrowDataErrorCode);
         // TODO(179105110) report the duration since boot complete.
         mInjector.reportMetric(success, mLoadEscrowDataErrorCode, serviceType, attemptCount,
                 escrowDurationInSeconds, vbmetaDigestStatus, -1);

services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java

@@ -165,7 +165,17 @@ public class RebootEscrowManagerTests {
             mRebootEscrow = null;
             mServerBased = true;
             RebootEscrowProviderServerBasedImpl.Injector injector =
-                    new RebootEscrowProviderServerBasedImpl.Injector(serviceConnection);
+                    new RebootEscrowProviderServerBasedImpl.Injector(serviceConnection) {
+                        @Override
+                        long getServiceTimeoutInSeconds() {
+                            return 30;
+                        }
+
+                        @Override
+                        long getServerBlobLifetimeInMillis() {
+                            return 600_000;
+                        }
+                    };
             mDefaultRebootEscrowProvider = new RebootEscrowProviderServerBasedImpl(
                     storage, injector);
             mUserManager = userManager;
@@ -188,6 +198,11 @@ public class RebootEscrowManagerTests {
             return mServerBased;
         }
 
+        @Override
+        public boolean isNetworkConnected() {
+            return false;
+        }
+
         @Override
         public RebootEscrowProviderInterface createRebootEscrowProviderIfNeeded() {
             mRebootEscrowProviderInUse = mDefaultRebootEscrowProvider;
@@ -602,7 +617,7 @@ public class RebootEscrowManagerTests {
         // Sleep 5s for the retry to complete
         Thread.sleep(5 * 1000);
         assertFalse(metricsSuccessCaptor.getValue());
-        assertEquals(Integer.valueOf(RebootEscrowManager.ERROR_RETRY_COUNT_EXHAUSTED),
+        assertEquals(Integer.valueOf(RebootEscrowManager.ERROR_NO_NETWORK),
                 metricsErrorCodeCaptor.getValue());
     }