diff --git a/bpf_progs/netd.c b/bpf_progs/netd.c
index f223dd1..1c84d63 100644
--- a/bpf_progs/netd.c
+++ b/bpf_progs/netd.c
@@ -446,8 +446,18 @@
                                                       const struct egress_bool egress,
                                                       const bool enable_tracing,
                                                       const struct kver_uint kver) {
+    // sock_uid will be 'overflowuid' if !sk_fullsock(sk_to_full_sk(skb->sk))
     uint32_t sock_uid = bpf_get_socket_uid(skb);
-    uint64_t cookie = bpf_get_socket_cookie(skb);
+
+    // kernel's DEFAULT_OVERFLOWUID is 65534, this is the overflow 'nobody' uid,
+    // usually this being returned means that skb->sk is NULL during RX
+    // (early decap socket lookup failure), which commonly happens for incoming
+    // packets to an unconnected udp socket.
+    // But it can also happen for egress from a timewait socket.
+    // Let's treat such cases as 'root' which is_system_uid()
+    if (sock_uid == 65534) sock_uid = 0;
+
+    uint64_t cookie = bpf_get_socket_cookie(skb);  // 0 iff !skb->sk
     UidTagValue* utag = bpf_cookie_tag_map_lookup_elem(&cookie);
     uint32_t uid, tag;
     if (utag) {
diff --git a/framework/api/current.txt b/framework/api/current.txt
index 554301b..ef8415c 100644
--- a/framework/api/current.txt
+++ b/framework/api/current.txt
@@ -315,6 +315,7 @@
     method @Nullable public android.net.NetworkSpecifier getNetworkSpecifier();
     method public int getOwnerUid();
     method public int getSignalStrength();
+    method @FlaggedApi("com.android.net.flags.request_restricted_wifi") @NonNull public java.util.Set<java.lang.Integer> getSubscriptionIds();
     method @Nullable public android.net.TransportInfo getTransportInfo();
     method public boolean hasCapability(int);
     method public boolean hasEnterpriseId(int);
@@ -361,6 +362,7 @@
     field public static final int TRANSPORT_CELLULAR = 0; // 0x0
     field public static final int TRANSPORT_ETHERNET = 3; // 0x3
     field public static final int TRANSPORT_LOWPAN = 6; // 0x6
+    field @FlaggedApi("com.android.net.flags.support_transport_satellite") public static final int TRANSPORT_SATELLITE = 10; // 0xa
     field public static final int TRANSPORT_THREAD = 9; // 0x9
     field public static final int TRANSPORT_USB = 8; // 0x8
     field public static final int TRANSPORT_VPN = 4; // 0x4
@@ -419,6 +421,7 @@
     method public int describeContents();
     method @NonNull public int[] getCapabilities();
     method @Nullable public android.net.NetworkSpecifier getNetworkSpecifier();
+    method @FlaggedApi("com.android.net.flags.request_restricted_wifi") @NonNull public java.util.Set<java.lang.Integer> getSubscriptionIds();
     method @NonNull public int[] getTransportTypes();
     method public boolean hasCapability(int);
     method public boolean hasTransport(int);
@@ -438,6 +441,7 @@
     method @NonNull public android.net.NetworkRequest.Builder setIncludeOtherUidNetworks(boolean);
     method @Deprecated public android.net.NetworkRequest.Builder setNetworkSpecifier(String);
     method public android.net.NetworkRequest.Builder setNetworkSpecifier(android.net.NetworkSpecifier);
+    method @FlaggedApi("com.android.net.flags.request_restricted_wifi") @NonNull public android.net.NetworkRequest.Builder setSubscriptionIds(@NonNull java.util.Set<java.lang.Integer>);
   }
 
   public class ParseException extends java.lang.RuntimeException {
diff --git a/framework/api/system-current.txt b/framework/api/system-current.txt
index e812024..bef29a4 100644
--- a/framework/api/system-current.txt
+++ b/framework/api/system-current.txt
@@ -307,7 +307,6 @@
     method @NonNull public int[] getAdministratorUids();
     method @Nullable public static String getCapabilityCarrierName(int);
     method @Nullable public String getSsid();
-    method @NonNull public java.util.Set<java.lang.Integer> getSubscriptionIds();
     method @NonNull public int[] getTransportTypes();
     method @Nullable public java.util.List<android.net.Network> getUnderlyingNetworks();
     method public boolean isPrivateDnsBroken();
@@ -373,7 +372,6 @@
 
   public static class NetworkRequest.Builder {
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP) public android.net.NetworkRequest.Builder setSignalStrength(int);
-    method @NonNull public android.net.NetworkRequest.Builder setSubscriptionIds(@NonNull java.util.Set<java.lang.Integer>);
   }
 
   public final class NetworkScore implements android.os.Parcelable {
diff --git a/framework/src/android/net/NetworkCapabilities.java b/framework/src/android/net/NetworkCapabilities.java
index 8d9a844..140a631 100644
--- a/framework/src/android/net/NetworkCapabilities.java
+++ b/framework/src/android/net/NetworkCapabilities.java
@@ -130,6 +130,10 @@
                 "com.android.net.flags.forbidden_capability";
         static final String FLAG_NET_CAPABILITY_LOCAL_NETWORK =
                 "com.android.net.flags.net_capability_local_network";
+        static final String REQUEST_RESTRICTED_WIFI =
+                "com.android.net.flags.request_restricted_wifi";
+        static final String SUPPORT_TRANSPORT_SATELLITE =
+                "com.android.net.flags.support_transport_satellite";
     }
 
     /**
@@ -1253,6 +1257,7 @@
             TRANSPORT_TEST,
             TRANSPORT_USB,
             TRANSPORT_THREAD,
+            TRANSPORT_SATELLITE,
     })
     public @interface Transport { }
 
@@ -1309,10 +1314,16 @@
      */
     public static final int TRANSPORT_THREAD = 9;
 
+    /**
+     * Indicates this network uses a Satellite transport.
+     */
+    @FlaggedApi(Flags.SUPPORT_TRANSPORT_SATELLITE)
+    public static final int TRANSPORT_SATELLITE = 10;
+
     /** @hide */
     public static final int MIN_TRANSPORT = TRANSPORT_CELLULAR;
     /** @hide */
-    public static final int MAX_TRANSPORT = TRANSPORT_THREAD;
+    public static final int MAX_TRANSPORT = TRANSPORT_SATELLITE;
 
     private static final int ALL_VALID_TRANSPORTS;
     static {
@@ -1339,6 +1350,7 @@
         "TEST",
         "USB",
         "THREAD",
+        "SATELLITE",
     };
 
     /**
@@ -2790,10 +2802,9 @@
      * receiver holds the NETWORK_FACTORY permission. In all other cases, it will be the empty set.
      *
      * @return
-     * @hide
      */
     @NonNull
-    @SystemApi
+    @FlaggedApi(Flags.REQUEST_RESTRICTED_WIFI)
     public Set<Integer> getSubscriptionIds() {
         return new ArraySet<>(mSubIds);
     }
diff --git a/framework/src/android/net/NetworkRequest.java b/framework/src/android/net/NetworkRequest.java
index 653e41d..4de02ac 100644
--- a/framework/src/android/net/NetworkRequest.java
+++ b/framework/src/android/net/NetworkRequest.java
@@ -34,6 +34,7 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED;
 import static android.net.NetworkCapabilities.TRANSPORT_TEST;
 
+import android.annotation.FlaggedApi;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
@@ -145,6 +146,12 @@
  * Look up the specific capability to learn whether its usage requires this self-certification.
  */
 public class NetworkRequest implements Parcelable {
+
+    /** @hide */
+    public static class Flags {
+        static final String REQUEST_RESTRICTED_WIFI =
+                "com.android.net.flags.request_restricted_wifi";
+    }
     /**
      * The first requestId value that will be allocated.
      * @hide only used by ConnectivityService.
@@ -630,10 +637,9 @@
          * NETWORK_FACTORY permission.
          *
          * @param subIds A {@code Set} that represents subscription IDs.
-         * @hide
          */
         @NonNull
-        @SystemApi
+        @FlaggedApi(Flags.REQUEST_RESTRICTED_WIFI)
         public Builder setSubscriptionIds(@NonNull Set<Integer> subIds) {
             mNetworkCapabilities.setSubscriptionIds(subIds);
             return this;
@@ -890,4 +896,17 @@
         // a new array.
         return networkCapabilities.getTransportTypes();
     }
+
+    /**
+     * Gets all the subscription ids set on this {@code NetworkRequest} instance.
+     *
+     * @return Set of Integer values for this instance.
+     */
+    @NonNull
+    @FlaggedApi(Flags.REQUEST_RESTRICTED_WIFI)
+    public Set<Integer> getSubscriptionIds() {
+        // No need to make a defensive copy here as NC#getSubscriptionIds() already returns
+        // a new set.
+        return networkCapabilities.getSubscriptionIds();
+    }
 }
diff --git a/service/Android.bp b/service/Android.bp
index c6ecadd..403ba7d 100644
--- a/service/Android.bp
+++ b/service/Android.bp
@@ -179,6 +179,8 @@
         "unsupportedappusage",
         "ServiceConnectivityResources",
         "framework-statsd",
+        "framework-permission",
+        "framework-permission-s",
     ],
     static_libs: [
         // Do not add libs here if they are already included
@@ -186,7 +188,7 @@
         "androidx.annotation_annotation",
         "connectivity-net-module-utils-bpf",
         "connectivity_native_aidl_interface-lateststable-java",
-        "dnsresolver_aidl_interface-V13-java",
+        "dnsresolver_aidl_interface-V14-java",
         "modules-utils-shell-command-handler",
         "net-utils-device-common",
         "net-utils-device-common-ip",
@@ -265,6 +267,8 @@
         "framework-tethering.impl",
         "framework-wifi",
         "libprotobuf-java-nano",
+        "framework-permission",
+        "framework-permission-s",
     ],
     jarjar_rules: ":connectivity-jarjar-rules",
     apex_available: [
diff --git a/service/lint-baseline.xml b/service/lint-baseline.xml
index b09589c..3e11d52 100644
--- a/service/lint-baseline.xml
+++ b/service/lint-baseline.xml
@@ -3,6 +3,17 @@
 
     <issue
         id="NewApi"
+        message="Call requires API level 33 (current min is 30): `getUidRule`"
+        errorLine1="        return BpfNetMapsReader.getUidRule(sUidOwnerMap, childChain, uid);"
+        errorLine2="                                ~~~~~~~~~~">
+        <location
+            file="packages/modules/Connectivity/service/src/com/android/server/BpfNetMaps.java"
+            line="643"
+            column="33"/>
+    </issue>
+
+    <issue
+        id="NewApi"
         message="Call requires API level 31 (current min is 30): `BpfBitmap`"
         errorLine1="                return new BpfBitmap(BLOCKED_PORTS_MAP_PATH);"
         errorLine2="                       ~~~~~~~~~~~~~">
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index 52f890d..1c92488 100755
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -113,6 +113,8 @@
 import static com.android.net.module.util.PermissionUtils.enforceNetworkStackPermissionOr;
 import static com.android.net.module.util.PermissionUtils.hasAnyPermissionOf;
 import static com.android.server.ConnectivityStatsLog.CONNECTIVITY_STATE_SAMPLE;
+import static com.android.server.connectivity.CarrierPrivilegeAuthenticator.CarrierPrivilegesLostListener;
+import static com.android.server.connectivity.ConnectivityFlags.REQUEST_RESTRICTED_WIFI;
 
 import android.Manifest;
 import android.annotation.CheckResult;
@@ -336,6 +338,7 @@
 import com.android.server.connectivity.ProxyTracker;
 import com.android.server.connectivity.QosCallbackTracker;
 import com.android.server.connectivity.RoutingCoordinatorService;
+import com.android.server.connectivity.SatelliteAccessController;
 import com.android.server.connectivity.UidRangeUtils;
 import com.android.server.connectivity.VpnNetworkPreferenceInfo;
 import com.android.server.connectivity.wear.CompanionDeviceManagerProxyService;
@@ -373,6 +376,7 @@
 import java.util.TreeSet;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Consumer;
 
 /**
  * @hide
@@ -467,6 +471,8 @@
 
     private volatile boolean mLockdownEnabled;
 
+    private final boolean mRequestRestrictedWifiEnabled;
+
     /**
      * Stale copy of uid blocked reasons provided by NPMS. As long as they are accessed only in
      * internal handler thread, they don't need a lock.
@@ -562,6 +568,10 @@
     // See {@link ConnectivitySettingsManager#setMobileDataPreferredUids}
     @VisibleForTesting
     static final int PREFERENCE_ORDER_MOBILE_DATA_PREFERERRED = 30;
+    // Order of setting satellite network preference fallback when default message application
+    // with role_sms role and android.permission.SATELLITE_COMMUNICATION permission detected
+    @VisibleForTesting
+    static final int PREFERENCE_ORDER_SATELLITE_FALLBACK = 40;
     // Preference order that signifies the network shouldn't be set as a default network for
     // the UIDs, only give them access to it. TODO : replace this with a boolean
     // in NativeUidRangeConfig
@@ -832,6 +842,11 @@
     private static final int EVENT_UID_FROZEN_STATE_CHANGED = 61;
 
     /**
+     * Event to inform the ConnectivityService handler when a uid has lost carrier privileges.
+     */
+    private static final int EVENT_UID_CARRIER_PRIVILEGES_LOST = 62;
+
+    /**
      * Argument for {@link #EVENT_PROVISIONING_NOTIFICATION} to indicate that the notification
      * should be shown.
      */
@@ -920,6 +935,7 @@
     private final QosCallbackTracker mQosCallbackTracker;
     private final NetworkNotificationManager mNotifier;
     private final LingerMonitor mLingerMonitor;
+    private final SatelliteAccessController mSatelliteAccessController;
 
     // sequence number of NetworkRequests
     private int mNextNetworkRequestId = NetworkRequest.FIRST_REQUEST_ID;
@@ -1270,6 +1286,18 @@
     }
     private final LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(this);
 
+    private final CarrierPrivilegesLostListenerImpl mCarrierPrivilegesLostListenerImpl =
+            new CarrierPrivilegesLostListenerImpl();
+
+    private class CarrierPrivilegesLostListenerImpl implements CarrierPrivilegesLostListener {
+        @Override
+        public void onCarrierPrivilegesLost(int uid) {
+            if (mRequestRestrictedWifiEnabled) {
+                mHandler.sendMessage(mHandler.obtainMessage(
+                        EVENT_UID_CARRIER_PRIVILEGES_LOST, uid, 0 /* arg2 */));
+            }
+        }
+    }
     final LocalPriorityDump mPriorityDumper = new LocalPriorityDump();
     /**
      * Helper class which parses out priority arguments and dumps sections according to their
@@ -1328,6 +1356,11 @@
         }
     }
 
+    @VisibleForTesting
+    CarrierPrivilegesLostListener getCarrierPrivilegesLostListener() {
+        return mCarrierPrivilegesLostListenerImpl;
+    }
+
     /**
      * Dependencies of ConnectivityService, for injection in tests.
      */
@@ -1488,15 +1521,31 @@
          */
         @Nullable
         public CarrierPrivilegeAuthenticator makeCarrierPrivilegeAuthenticator(
-                @NonNull final Context context, @NonNull final TelephonyManager tm) {
+                @NonNull final Context context,
+                @NonNull final TelephonyManager tm,
+                boolean requestRestrictedWifiEnabled,
+                @NonNull CarrierPrivilegesLostListener listener) {
             if (isAtLeastT()) {
-                return new CarrierPrivilegeAuthenticator(context, tm);
+                return new CarrierPrivilegeAuthenticator(
+                        context, tm, requestRestrictedWifiEnabled, listener);
             } else {
                 return null;
             }
         }
 
         /**
+         * @see SatelliteAccessController
+         */
+        @Nullable
+        public SatelliteAccessController makeSatelliteAccessController(
+                @NonNull final Context context,
+                Consumer<Set<Integer>> updateSatelliteNetworkFallbackUidCallback,
+                @NonNull final Handler connectivityServiceInternalHandler) {
+            return new SatelliteAccessController(context, updateSatelliteNetworkFallbackUidCallback,
+                    connectivityServiceInternalHandler);
+        }
+
+        /**
          * @see DeviceConfigUtils#isTetheringFeatureEnabled
          */
         public boolean isFeatureEnabled(Context context, String name) {
@@ -1759,8 +1808,20 @@
         mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
         mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
         mLocationPermissionChecker = mDeps.makeLocationPermissionChecker(mContext);
-        mCarrierPrivilegeAuthenticator =
-                mDeps.makeCarrierPrivilegeAuthenticator(mContext, mTelephonyManager);
+        mRequestRestrictedWifiEnabled = mDeps.isAtLeastU()
+                && mDeps.isFeatureEnabled(context, REQUEST_RESTRICTED_WIFI);
+        mCarrierPrivilegeAuthenticator = mDeps.makeCarrierPrivilegeAuthenticator(
+                mContext, mTelephonyManager, mRequestRestrictedWifiEnabled,
+                mCarrierPrivilegesLostListenerImpl);
+
+        if (mDeps.isAtLeastU()
+                && mDeps
+                .isFeatureNotChickenedOut(mContext, ALLOW_SATALLITE_NETWORK_FALLBACK)) {
+            mSatelliteAccessController = mDeps.makeSatelliteAccessController(
+                    mContext, this::updateSatelliteNetworkPreferenceUids, mHandler);
+        } else {
+            mSatelliteAccessController = null;
+        }
 
         // To ensure uid state is synchronized with Network Policy, register for
         // NetworkPolicyManagerService events must happen prior to NetworkPolicyManagerService
@@ -2030,6 +2091,18 @@
                 new Pair<>(network, proxyInfo)).sendToTarget();
     }
 
+    /**
+     * Called when satellite network fallback uids at {@link SatelliteAccessController}
+     * cache was updated based on {@link
+     * android.app.role.OnRoleHoldersChangedListener#onRoleHoldersChanged(String, UserHandle)},
+     * to create multilayer request with preference order
+     * {@link #PREFERENCE_ORDER_SATELLITE_FALLBACK} there on.
+     *
+     */
+    private void updateSatelliteNetworkPreferenceUids(Set<Integer> satelliteNetworkFallbackUids) {
+        handleSetSatelliteNetworkPreference(satelliteNetworkFallbackUids);
+    }
+
     private void handleAlwaysOnNetworkRequest(
             NetworkRequest networkRequest, String settingName, boolean defaultValue) {
         final boolean enable = toBool(Settings.Global.getInt(
@@ -3372,6 +3445,9 @@
 
     public static final String LOG_BPF_RC = "log_bpf_rc_force_disable";
 
+    public static final String ALLOW_SATALLITE_NETWORK_FALLBACK =
+            "allow_satallite_network_fallback";
+
     private void enforceInternetPermission() {
         mContext.enforceCallingOrSelfPermission(
                 android.Manifest.permission.INTERNET,
@@ -3738,6 +3814,10 @@
             updateMobileDataPreferredUids();
         }
 
+        if (mSatelliteAccessController != null) {
+            mSatelliteAccessController.start();
+        }
+
         // On T+ devices, register callback for statsd to pull NETWORK_BPF_MAP_INFO atom
         if (mDeps.isAtLeastT()) {
             mBpfNetMaps.setPullAtomCallback(mContext);
@@ -6410,6 +6490,9 @@
                     UidFrozenStateChangedArgs args = (UidFrozenStateChangedArgs) msg.obj;
                     handleFrozenUids(args.mUids, args.mFrozenStates);
                     break;
+                case EVENT_UID_CARRIER_PRIVILEGES_LOST:
+                    handleUidCarrierPrivilegesLost(msg.arg1);
+                    break;
             }
         }
     }
@@ -7490,9 +7573,14 @@
         }
         mAppOpsManager.checkPackage(callerUid, callerPackageName);
 
-        if (!nc.getSubscriptionIds().isEmpty()) {
-            enforceNetworkFactoryPermission();
+        if (nc.getSubscriptionIds().isEmpty()) {
+            return;
         }
+        if (mRequestRestrictedWifiEnabled
+                && canRequestRestrictedNetworkDueToCarrierPrivileges(nc, callerUid)) {
+            return;
+        }
+        enforceNetworkFactoryPermission();
     }
 
     private int[] getSignalStrengthThresholds(@NonNull final NetworkAgentInfo nai) {
@@ -7772,6 +7860,22 @@
         applicationNetworkCapabilities.enforceSelfCertifiedNetworkCapabilitiesDeclared(
                 networkCapabilities);
     }
+
+    private boolean canRequestRestrictedNetworkDueToCarrierPrivileges(
+            NetworkCapabilities networkCapabilities, int callingUid) {
+        if (mRequestRestrictedWifiEnabled) {
+            // For U+ devices, callers with carrier privilege could request restricted networks
+            // with CBS capabilities, or any restricted WiFi networks.
+            return ((networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)
+                || networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))
+                && hasCarrierPrivilegeForNetworkCaps(callingUid, networkCapabilities));
+        } else {
+            // For T+ devices, callers with carrier privilege could request with CBS
+            // capabilities.
+            return (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)
+                && hasCarrierPrivilegeForNetworkCaps(callingUid, networkCapabilities));
+        }
+    }
     private void enforceNetworkRequestPermissions(NetworkCapabilities networkCapabilities,
             String callingPackageName, String callingAttributionTag, final int callingUid) {
         if (shouldCheckCapabilitiesDeclaration(networkCapabilities, callingUid,
@@ -7779,13 +7883,11 @@
             enforceRequestCapabilitiesDeclaration(callingPackageName, networkCapabilities,
                     callingUid);
         }
-        if (networkCapabilities.hasCapability(NET_CAPABILITY_NOT_RESTRICTED) == false) {
-            // For T+ devices, callers with carrier privilege could request with CBS capabilities.
-            if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)
-                    && hasCarrierPrivilegeForNetworkCaps(callingUid, networkCapabilities)) {
-                return;
+        if (!networkCapabilities.hasCapability(NET_CAPABILITY_NOT_RESTRICTED)) {
+            if (!canRequestRestrictedNetworkDueToCarrierPrivileges(
+                    networkCapabilities, callingUid)) {
+                enforceConnectivityRestrictedNetworksPermission(true /* checkUidsAllowedList */);
             }
-            enforceConnectivityRestrictedNetworksPermission(true /* checkUidsAllowedList */);
         } else {
             enforceChangePermission(callingPackageName, callingAttributionTag);
         }
@@ -9052,6 +9154,38 @@
         }
     }
 
+    private void handleUidCarrierPrivilegesLost(int uid) {
+        ensureRunningOnConnectivityServiceThread();
+        // A NetworkRequest needs to be revoked when all the conditions are met
+        //   1. It requests restricted network
+        //   2. The requestor uid matches the uid with the callback
+        //   3. The app doesn't have Carrier Privileges
+        //   4. The app doesn't have permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS
+        for (final NetworkRequest nr : mNetworkRequests.keySet()) {
+            if ((nr.isRequest() || nr.isListen())
+                    && !nr.hasCapability(NET_CAPABILITY_NOT_RESTRICTED)
+                    && nr.getRequestorUid() == uid
+                    && !hasConnectivityRestrictedNetworksPermission(uid, true)) {
+                declareNetworkRequestUnfulfillable(nr);
+            }
+        }
+
+        // A NetworkAgent's allowedUids may need to be updated if the app has lost
+        // carrier config
+        for (final NetworkAgentInfo nai : mNetworkAgentInfos) {
+            if (nai.networkCapabilities.getAllowedUidsNoCopy().contains(uid)) {
+                final NetworkCapabilities nc = new NetworkCapabilities(nai.networkCapabilities);
+                NetworkAgentInfo.restrictCapabilitiesFromNetworkAgent(
+                        nc,
+                        uid,
+                        false /* hasAutomotiveFeature (irrelevant) */,
+                        mDeps,
+                        mCarrierPrivilegeAuthenticator);
+                updateCapabilities(nai.getScore(), nai, nc);
+            }
+        }
+    }
+
     /**
      * Update the NetworkCapabilities for {@code nai} to {@code nc}. Specifically:
      *
@@ -9499,7 +9633,6 @@
         final ArraySet<Integer> toAdd = new ArraySet<>(newUids);
         toRemove.removeAll(newUids);
         toAdd.removeAll(prevUids);
-
         try {
             if (!toAdd.isEmpty()) {
                 mNetd.networkAddUidRangesParcel(new NativeUidRangeConfig(
@@ -12673,16 +12806,27 @@
 
     @VisibleForTesting
     @NonNull
-    ArraySet<NetworkRequestInfo> createNrisFromMobileDataPreferredUids(
-            @NonNull final Set<Integer> uids) {
+    ArraySet<NetworkRequestInfo> createNrisForPreferenceOrder(@NonNull final Set<Integer> uids,
+            @NonNull final List<NetworkRequest> requests,
+            final int preferenceOrder) {
         final ArraySet<NetworkRequestInfo> nris = new ArraySet<>();
         if (uids.size() == 0) {
             // Should not create NetworkRequestInfo if no preferences. Without uid range in
             // NetworkRequestInfo, makeDefaultForApps() would treat it as a illegal NRI.
-            if (DBG) log("Don't create NetworkRequestInfo because no preferences");
             return nris;
         }
 
+        final Set<UidRange> ranges = new ArraySet<>();
+        for (final int uid : uids) {
+            ranges.add(new UidRange(uid, uid));
+        }
+        setNetworkRequestUids(requests, ranges);
+        nris.add(new NetworkRequestInfo(Process.myUid(), requests, preferenceOrder));
+        return nris;
+    }
+
+    ArraySet<NetworkRequestInfo> createNrisFromMobileDataPreferredUids(
+            @NonNull final Set<Integer> uids) {
         final List<NetworkRequest> requests = new ArrayList<>();
         // The NRI should be comprised of two layers:
         // - The request for the mobile network preferred.
@@ -12691,14 +12835,28 @@
                 TRANSPORT_CELLULAR, NetworkRequest.Type.REQUEST));
         requests.add(createDefaultInternetRequestForTransport(
                 TYPE_NONE, NetworkRequest.Type.TRACK_DEFAULT));
-        final Set<UidRange> ranges = new ArraySet<>();
-        for (final int uid : uids) {
-            ranges.add(new UidRange(uid, uid));
-        }
-        setNetworkRequestUids(requests, ranges);
-        nris.add(new NetworkRequestInfo(Process.myUid(), requests,
-                PREFERENCE_ORDER_MOBILE_DATA_PREFERERRED));
-        return nris;
+        return createNrisForPreferenceOrder(uids, requests, PREFERENCE_ORDER_MOBILE_DATA_PREFERERRED
+        );
+    }
+
+    ArraySet<NetworkRequestInfo> createMultiLayerNrisFromSatelliteNetworkFallbackUids(
+            @NonNull final Set<Integer> uids) {
+        final List<NetworkRequest> requests = new ArrayList<>();
+
+        // request: track default(unrestricted internet network)
+        requests.add(createDefaultInternetRequestForTransport(
+                TYPE_NONE, NetworkRequest.Type.TRACK_DEFAULT));
+
+        // request: restricted Satellite internet
+        final NetworkCapabilities cap = new NetworkCapabilities.Builder()
+                .addCapability(NET_CAPABILITY_INTERNET)
+                .addCapability(NET_CAPABILITY_NOT_VCN_MANAGED)
+                .removeCapability(NET_CAPABILITY_NOT_RESTRICTED)
+                .addTransportType(NetworkCapabilities.TRANSPORT_SATELLITE)
+                .build();
+        requests.add(createNetworkRequest(NetworkRequest.Type.REQUEST, cap));
+
+        return createNrisForPreferenceOrder(uids, requests, PREFERENCE_ORDER_SATELLITE_FALLBACK);
     }
 
     private void handleMobileDataPreferredUidsChanged() {
@@ -12710,6 +12868,16 @@
         rematchAllNetworksAndRequests();
     }
 
+    private void handleSetSatelliteNetworkPreference(
+            @NonNull final Set<Integer> satelliteNetworkPreferredUids) {
+        removeDefaultNetworkRequestsForPreference(PREFERENCE_ORDER_SATELLITE_FALLBACK);
+        addPerAppDefaultNetworkRequests(
+                createMultiLayerNrisFromSatelliteNetworkFallbackUids(satelliteNetworkPreferredUids)
+        );
+        // Finally, rematch.
+        rematchAllNetworksAndRequests();
+    }
+
     private void handleIngressRateLimitChanged() {
         final long oldIngressRateLimit = mIngressRateLimit;
         mIngressRateLimit = ConnectivitySettingsManager.getIngressRateLimitInBytesPerSecond(
diff --git a/service/src/com/android/server/connectivity/CarrierPrivilegeAuthenticator.java b/service/src/com/android/server/connectivity/CarrierPrivilegeAuthenticator.java
index 5705ebe..533278e 100644
--- a/service/src/com/android/server/connectivity/CarrierPrivilegeAuthenticator.java
+++ b/service/src/com/android/server/connectivity/CarrierPrivilegeAuthenticator.java
@@ -79,11 +79,16 @@
     @NonNull
     private final List<PrivilegeListener> mCarrierPrivilegesChangedListeners = new ArrayList<>();
     private final boolean mUseCallbacksForServiceChanged;
+    private final boolean mRequestRestrictedWifiEnabled;
+    @NonNull
+    private final CarrierPrivilegesLostListener mListener;
 
     public CarrierPrivilegeAuthenticator(@NonNull final Context c,
             @NonNull final Dependencies deps,
             @NonNull final TelephonyManager t,
-            @NonNull final TelephonyManagerShim telephonyManagerShim) {
+            @NonNull final TelephonyManagerShim telephonyManagerShim,
+            final boolean requestRestrictedWifiEnabled,
+            @NonNull CarrierPrivilegesLostListener listener) {
         mContext = c;
         mTelephonyManager = t;
         mTelephonyManagerShim = telephonyManagerShim;
@@ -92,6 +97,8 @@
         mHandler = new Handler(thread.getLooper());
         mUseCallbacksForServiceChanged = deps.isFeatureEnabled(
                 c, CARRIER_SERVICE_CHANGED_USE_CALLBACK);
+        mRequestRestrictedWifiEnabled = requestRestrictedWifiEnabled;
+        mListener = listener;
         final IntentFilter filter = new IntentFilter();
         filter.addAction(TelephonyManager.ACTION_MULTI_SIM_CONFIG_CHANGED);
         synchronized (mLock) {
@@ -113,8 +120,10 @@
     }
 
     public CarrierPrivilegeAuthenticator(@NonNull final Context c,
-            @NonNull final TelephonyManager t) {
-        this(c, new Dependencies(), t, TelephonyManagerShimImpl.newInstance(t));
+            @NonNull final TelephonyManager t, final boolean requestRestrictedWifiEnabled,
+            @NonNull CarrierPrivilegesLostListener listener) {
+        this(c, new Dependencies(), t, TelephonyManagerShimImpl.newInstance(t),
+                requestRestrictedWifiEnabled, listener);
     }
 
     public static class Dependencies {
@@ -133,6 +142,18 @@
         }
     }
 
+    /**
+     * Listener interface to get a notification when the carrier App lost its privileges.
+     */
+    public interface CarrierPrivilegesLostListener {
+        /**
+         * Called when the carrier App lost its privileges.
+         *
+         * @param uid  The uid of the carrier app which has lost its privileges.
+         */
+        void onCarrierPrivilegesLost(int uid);
+    }
+
     private void simConfigChanged() {
         synchronized (mLock) {
             unregisterCarrierPrivilegesListeners();
@@ -171,7 +192,11 @@
                 return;
             }
             synchronized (mLock) {
+                int oldUid = mCarrierServiceUid.get(mLogicalSlot);
                 mCarrierServiceUid.put(mLogicalSlot, carrierServiceUid);
+                if (oldUid != 0 && oldUid != carrierServiceUid) {
+                    mListener.onCarrierPrivilegesLost(oldUid);
+                }
             }
         }
     }
@@ -193,7 +218,11 @@
     private void unregisterCarrierPrivilegesListeners() {
         for (PrivilegeListener carrierPrivilegesListener : mCarrierPrivilegesChangedListeners) {
             removeCarrierPrivilegesListener(carrierPrivilegesListener);
+            int oldUid = mCarrierServiceUid.get(carrierPrivilegesListener.mLogicalSlot);
             mCarrierServiceUid.delete(carrierPrivilegesListener.mLogicalSlot);
+            if (oldUid != 0) {
+                mListener.onCarrierPrivilegesLost(oldUid);
+            }
         }
         mCarrierPrivilegesChangedListeners.clear();
     }
@@ -231,7 +260,7 @@
     public boolean isCarrierServiceUidForNetworkCapabilities(int callingUid,
             @NonNull NetworkCapabilities networkCapabilities) {
         if (callingUid == Process.INVALID_UID) return false;
-        final int subId;
+        int subId;
         if (networkCapabilities.hasSingleTransportBesidesTest(TRANSPORT_CELLULAR)) {
             subId = getSubIdFromTelephonySpecifier(networkCapabilities.getNetworkSpecifier());
         } else if (networkCapabilities.hasSingleTransportBesidesTest(TRANSPORT_WIFI)) {
@@ -239,6 +268,12 @@
         } else {
             subId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
         }
+        if (subId == SubscriptionManager.INVALID_SUBSCRIPTION_ID
+                && mRequestRestrictedWifiEnabled
+                && networkCapabilities.getSubscriptionIds().size() == 1) {
+            subId = networkCapabilities.getSubscriptionIds().toArray(new Integer[0])[0];
+        }
+
         if (subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID
                 && !networkCapabilities.getSubscriptionIds().contains(subId)) {
             // Ideally, the code above should just use networkCapabilities.getSubscriptionIds()
@@ -257,10 +292,16 @@
     @VisibleForTesting
     void updateCarrierServiceUid() {
         synchronized (mLock) {
+            SparseIntArray oldCarrierServiceUid = mCarrierServiceUid.clone();
             mCarrierServiceUid.clear();
             for (int i = 0; i < mModemCount; i++) {
                 mCarrierServiceUid.put(i, getCarrierServicePackageUidForSlot(i));
             }
+            for (int i = 0; i < oldCarrierServiceUid.size(); i++) {
+                if (mCarrierServiceUid.indexOfValue(oldCarrierServiceUid.valueAt(i)) < 0) {
+                    mListener.onCarrierPrivilegesLost(oldCarrierServiceUid.valueAt(i));
+                }
+            }
         }
     }
 
@@ -340,6 +381,7 @@
 
     public void dump(IndentingPrintWriter pw) {
         pw.println("CarrierPrivilegeAuthenticator:");
+        pw.println("mRequestRestrictedWifiEnabled = " + mRequestRestrictedWifiEnabled);
         synchronized (mLock) {
             final int size = mCarrierServiceUid.size();
             for (int i = 0; i < size; ++i) {
diff --git a/service/src/com/android/server/connectivity/ConnectivityFlags.java b/service/src/com/android/server/connectivity/ConnectivityFlags.java
index f8f76ef..bf09160 100644
--- a/service/src/com/android/server/connectivity/ConnectivityFlags.java
+++ b/service/src/com/android/server/connectivity/ConnectivityFlags.java
@@ -36,6 +36,8 @@
     public static final String CARRIER_SERVICE_CHANGED_USE_CALLBACK =
             "carrier_service_changed_use_callback_version";
 
+    public static final String REQUEST_RESTRICTED_WIFI =
+            "request_restricted_wifi";
     private boolean mNoRematchAllRequestsOnRegister;
 
     /**
diff --git a/service/src/com/android/server/connectivity/NetworkAgentInfo.java b/service/src/com/android/server/connectivity/NetworkAgentInfo.java
index 50cad45..76993a6 100644
--- a/service/src/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/service/src/com/android/server/connectivity/NetworkAgentInfo.java
@@ -1551,7 +1551,7 @@
      * @param hasAutomotiveFeature true if this device has the automotive feature, false otherwise
      * @param authenticator the carrier privilege authenticator to check for telephony constraints
      */
-    public void restrictCapabilitiesFromNetworkAgent(@NonNull final NetworkCapabilities nc,
+    public static void restrictCapabilitiesFromNetworkAgent(@NonNull final NetworkCapabilities nc,
             final int creatorUid, final boolean hasAutomotiveFeature,
             @NonNull final ConnectivityService.Dependencies deps,
             @Nullable final CarrierPrivilegeAuthenticator authenticator) {
@@ -1564,7 +1564,7 @@
         }
     }
 
-    private boolean areAllowedUidsAcceptableFromNetworkAgent(
+    private static boolean areAllowedUidsAcceptableFromNetworkAgent(
             @NonNull final NetworkCapabilities nc, final boolean hasAutomotiveFeature,
             @NonNull final ConnectivityService.Dependencies deps,
             @Nullable final CarrierPrivilegeAuthenticator carrierPrivilegeAuthenticator) {
diff --git a/service/src/com/android/server/connectivity/SatelliteAccessController.java b/service/src/com/android/server/connectivity/SatelliteAccessController.java
new file mode 100644
index 0000000..0968aff
--- /dev/null
+++ b/service/src/com/android/server/connectivity/SatelliteAccessController.java
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2024 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.server.connectivity;
+
+import android.Manifest;
+import android.annotation.NonNull;
+import android.app.role.OnRoleHoldersChangedListener;
+import android.app.role.RoleManager;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Handler;
+import android.os.Process;
+import android.os.UserHandle;
+import android.util.ArraySet;
+import android.util.Log;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.function.Consumer;
+
+/**
+ * Tracks the uid of all the default messaging application which are role_sms role and
+ * satellite_communication permission complaint and requests ConnectivityService to create multi
+ * layer request with satellite internet access support for the default message application.
+ * @hide
+ */
+public class SatelliteAccessController {
+    private static final String TAG = SatelliteAccessController.class.getSimpleName();
+    private final PackageManager mPackageManager;
+    private final Dependencies mDeps;
+    private final DefaultMessageRoleListener mDefaultMessageRoleListener;
+    private final Consumer<Set<Integer>> mCallback;
+    private final Set<Integer> mSatelliteNetworkPreferredUidCache = new ArraySet<>();
+    private final Handler mConnectivityServiceHandler;
+
+    /**
+     *  Monitor {@link android.app.role.OnRoleHoldersChangedListener#onRoleHoldersChanged(String,
+     *  UserHandle)},
+     *
+     */
+    private final class DefaultMessageRoleListener
+            implements OnRoleHoldersChangedListener {
+        @Override
+        public void onRoleHoldersChanged(String role, UserHandle user) {
+            if (RoleManager.ROLE_SMS.equals(role)) {
+                Log.i(TAG, "ROLE_SMS Change detected ");
+                onRoleSmsChanged();
+            }
+        }
+
+        public void register() {
+            try {
+                mDeps.addOnRoleHoldersChangedListenerAsUser(
+                        mConnectivityServiceHandler::post, this, UserHandle.ALL);
+            } catch (RuntimeException e) {
+                Log.e(TAG, "Could not register satellite controller listener due to " + e);
+            }
+        }
+    }
+
+    public SatelliteAccessController(@NonNull final Context c,
+            Consumer<Set<Integer>> callback,
+            @NonNull final Handler connectivityServiceInternalHandler) {
+        this(c, new Dependencies(c), callback, connectivityServiceInternalHandler);
+    }
+
+    public static class Dependencies {
+        private final RoleManager mRoleManager;
+
+        private Dependencies(Context context) {
+            mRoleManager = context.getSystemService(RoleManager.class);
+        }
+
+        /** See {@link RoleManager#getRoleHolders(String)} */
+        public List<String> getRoleHolders(String roleName) {
+            return mRoleManager.getRoleHolders(roleName);
+        }
+
+        /** See {@link RoleManager#addOnRoleHoldersChangedListenerAsUser} */
+        public void addOnRoleHoldersChangedListenerAsUser(@NonNull Executor executor,
+                @NonNull OnRoleHoldersChangedListener listener, UserHandle user) {
+            mRoleManager.addOnRoleHoldersChangedListenerAsUser(executor, listener, user);
+        }
+    }
+
+    @VisibleForTesting
+    SatelliteAccessController(@NonNull final Context c, @NonNull final Dependencies deps,
+            Consumer<Set<Integer>> callback,
+            @NonNull final Handler connectivityServiceInternalHandler) {
+        mDeps = deps;
+        mPackageManager = c.getPackageManager();
+        mDefaultMessageRoleListener = new DefaultMessageRoleListener();
+        mCallback = callback;
+        mConnectivityServiceHandler = connectivityServiceInternalHandler;
+    }
+
+    private void updateSatelliteNetworkPreferredUidListCache(List<String> packageNames) {
+        for (String packageName : packageNames) {
+            // Check if SATELLITE_COMMUNICATION permission is enabled for default sms application
+            // package before adding it part of satellite network preferred uid cache list.
+            if (isSatellitePermissionEnabled(packageName)) {
+                mSatelliteNetworkPreferredUidCache.add(getUidForPackage(packageName));
+            }
+        }
+    }
+
+    //Check if satellite communication is enabled for the package
+    private boolean isSatellitePermissionEnabled(String packageName) {
+        if (mPackageManager != null) {
+            return mPackageManager.checkPermission(
+                    Manifest.permission.SATELLITE_COMMUNICATION, packageName)
+                    == PackageManager.PERMISSION_GRANTED;
+        }
+        return false;
+    }
+
+    private int getUidForPackage(String pkgName) {
+        if (pkgName == null) {
+            return Process.INVALID_UID;
+        }
+        try {
+            if (mPackageManager != null) {
+                ApplicationInfo applicationInfo = mPackageManager.getApplicationInfo(pkgName, 0);
+                if (applicationInfo != null) {
+                    return applicationInfo.uid;
+                }
+            }
+        } catch (PackageManager.NameNotFoundException exception) {
+            Log.e(TAG, "Unable to find uid for package: " + pkgName);
+        }
+        return Process.INVALID_UID;
+    }
+
+    //on Role sms change triggered by OnRoleHoldersChangedListener()
+    private void onRoleSmsChanged() {
+        final List<String> packageNames = getRoleSmsChangedPackageName();
+
+        // Create a new Set
+        Set<Integer> previousSatellitePreferredUid = new ArraySet<>(
+                mSatelliteNetworkPreferredUidCache);
+
+        mSatelliteNetworkPreferredUidCache.clear();
+
+        if (packageNames != null) {
+            Log.i(TAG, "role_sms_packages: " + packageNames);
+            // On Role change listener, update the satellite network preferred uid cache list
+            updateSatelliteNetworkPreferredUidListCache(packageNames);
+            Log.i(TAG, "satellite_preferred_uid: " + mSatelliteNetworkPreferredUidCache);
+        } else {
+            Log.wtf(TAG, "package name was found null");
+        }
+
+        // on Role change, update the multilayer request at ConnectivityService with updated
+        // satellite network preferred uid cache list if changed or to revoke for previous default
+        // sms app
+        if (!mSatelliteNetworkPreferredUidCache.equals(previousSatellitePreferredUid)) {
+            Log.i(TAG, "update multi layer request");
+            mCallback.accept(mSatelliteNetworkPreferredUidCache);
+        }
+    }
+
+    private List<String> getRoleSmsChangedPackageName() {
+        try {
+            return mDeps.getRoleHolders(RoleManager.ROLE_SMS);
+        } catch (RuntimeException e) {
+            Log.wtf(TAG, "Could not get package name at role sms change update due to: " + e);
+            return null;
+        }
+    }
+
+    /** Register OnRoleHoldersChangedListener */
+    public void start() {
+        mConnectivityServiceHandler.post(this::onRoleSmsChanged);
+        mDefaultMessageRoleListener.register();
+    }
+}
diff --git a/staticlibs/Android.bp b/staticlibs/Android.bp
index 3cbabcc..47e897d 100644
--- a/staticlibs/Android.bp
+++ b/staticlibs/Android.bp
@@ -248,7 +248,7 @@
         "//apex_available:platform",
     ],
     lint: {
-        strict_updatability_linting: true,
+        baseline_filename: "lint-baseline.xml",
         error_checks: ["NewApi"],
     },
 }
diff --git a/staticlibs/lint-baseline.xml b/staticlibs/lint-baseline.xml
new file mode 100644
index 0000000..2ee3a43
--- /dev/null
+++ b/staticlibs/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="6" by="lint 8.4.0-alpha04" type="baseline" client="" dependencies="true" name="" variant="all" version="8.4.0-alpha04">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 31 (current min is 30): `makeNetlinkSocketAddress`"
+        errorLine1="            Os.bind(fd, makeNetlinkSocketAddress(0, mBindGroups));"
+        errorLine2="                        ~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="packages/modules/Connectivity/staticlibs/device/com/android/net/module/util/ip/NetlinkMonitor.java"
+            line="111"
+            column="25"/>
+    </issue>
+
+</issues>
diff --git a/staticlibs/tests/unit/Android.bp b/staticlibs/tests/unit/Android.bp
index d203bc0..4c226cc 100644
--- a/staticlibs/tests/unit/Android.bp
+++ b/staticlibs/tests/unit/Android.bp
@@ -38,7 +38,6 @@
         "//packages/modules/NetworkStack/tests/integration",
     ],
     lint: {
-        strict_updatability_linting: true,
         test: true,
     },
 }
@@ -56,7 +55,4 @@
     ],
     jarjar_rules: "jarjar-rules.txt",
     test_suites: ["device-tests"],
-    lint: {
-        strict_updatability_linting: true,
-    },
 }
diff --git a/tests/integration/src/com/android/server/net/integrationtests/ConnectivityServiceIntegrationTest.kt b/tests/integration/src/com/android/server/net/integrationtests/ConnectivityServiceIntegrationTest.kt
index 9b1bf6e..9148770 100644
--- a/tests/integration/src/com/android/server/net/integrationtests/ConnectivityServiceIntegrationTest.kt
+++ b/tests/integration/src/com/android/server/net/integrationtests/ConnectivityServiceIntegrationTest.kt
@@ -56,10 +56,12 @@
 import com.android.server.NetworkAgentWrapper
 import com.android.server.TestNetIdManager
 import com.android.server.connectivity.CarrierPrivilegeAuthenticator
+import com.android.server.connectivity.CarrierPrivilegeAuthenticator.CarrierPrivilegesLostListener
 import com.android.server.connectivity.ConnectivityResources
 import com.android.server.connectivity.MockableSystemProperties
 import com.android.server.connectivity.MultinetworkPolicyTracker
 import com.android.server.connectivity.ProxyTracker
+import com.android.server.connectivity.SatelliteAccessController
 import com.android.testutils.DevSdkIgnoreRunner
 import com.android.testutils.DeviceInfoUtils
 import com.android.testutils.RecorderCallback.CallbackEntry.LinkPropertiesChanged
@@ -86,6 +88,7 @@
 import org.mockito.Mockito.mock
 import org.mockito.MockitoAnnotations
 import org.mockito.Spy
+import java.util.function.Consumer
 
 const val SERVICE_BIND_TIMEOUT_MS = 5_000L
 const val TEST_TIMEOUT_MS = 10_000L
@@ -240,15 +243,25 @@
 
         override fun makeCarrierPrivilegeAuthenticator(
             context: Context,
-            tm: TelephonyManager
+            tm: TelephonyManager,
+            requestRestrictedWifiEnabled: Boolean,
+            listener: CarrierPrivilegesLostListener
         ): CarrierPrivilegeAuthenticator {
             return CarrierPrivilegeAuthenticator(context,
                 object : CarrierPrivilegeAuthenticator.Dependencies() {
                     override fun makeHandlerThread(): HandlerThread =
                         super.makeHandlerThread().also { handlerThreads.add(it) }
                 },
-                tm, TelephonyManagerShimImpl.newInstance(tm))
+                tm, TelephonyManagerShimImpl.newInstance(tm),
+                requestRestrictedWifiEnabled, listener)
         }
+
+        override fun makeSatelliteAccessController(
+            context: Context,
+            updateSatellitePreferredUid: Consumer<MutableSet<Int>>?,
+            connectivityServiceInternalHandler: Handler
+        ): SatelliteAccessController? = mock(
+            SatelliteAccessController::class.java)
     }
 
     @After
diff --git a/tests/unit/java/android/net/util/KeepaliveUtilsTest.kt b/tests/unit/java/android/net/util/KeepaliveUtilsTest.kt
index cb3a315..470274d 100644
--- a/tests/unit/java/android/net/util/KeepaliveUtilsTest.kt
+++ b/tests/unit/java/android/net/util/KeepaliveUtilsTest.kt
@@ -95,11 +95,11 @@
 
         // Check resource with invalid transport type.
         assertRunWithException(arrayOf("-1,3"))
-        assertRunWithException(arrayOf("10,3"))
+        assertRunWithException(arrayOf("11,3"))
 
         // Check valid customization generates expected array.
         val validRes = arrayOf("0,3", "1,0", "4,4")
-        val expectedValidRes = intArrayOf(3, 0, 0, 0, 4, 0, 0, 0, 0, 0)
+        val expectedValidRes = intArrayOf(3, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0)
 
         val mockContext = getMockedContextWithStringArrayRes(
                 R.array.config_networkSupportedKeepaliveCount,
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index 5562b67..6623bbd 100755
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -157,6 +157,7 @@
 import static android.telephony.DataConnectionRealTimeInfo.DC_POWER_STATE_HIGH;
 import static android.telephony.DataConnectionRealTimeInfo.DC_POWER_STATE_LOW;
 
+import static com.android.server.ConnectivityService.ALLOW_SATALLITE_NETWORK_FALLBACK;
 import static com.android.server.ConnectivityService.DELAY_DESTROY_FROZEN_SOCKETS_VERSION;
 import static com.android.net.module.util.DeviceConfigUtils.TETHERING_MODULE_NAME;
 import static com.android.server.ConnectivityService.ALLOW_SYSUI_CONNECTIVITY_REPORTS;
@@ -172,6 +173,7 @@
 import static com.android.server.ConnectivityServiceTestUtils.transportToLegacyType;
 import static com.android.server.NetworkAgentWrapper.CallbackType.OnQosCallbackRegister;
 import static com.android.server.NetworkAgentWrapper.CallbackType.OnQosCallbackUnregister;
+import static com.android.server.connectivity.CarrierPrivilegeAuthenticator.CarrierPrivilegesLostListener;
 import static com.android.testutils.Cleanup.testAndCleanup;
 import static com.android.testutils.ConcurrentUtils.await;
 import static com.android.testutils.ConcurrentUtils.durationOf;
@@ -420,6 +422,7 @@
 import com.android.server.connectivity.NetworkNotificationManager.NotificationType;
 import com.android.server.connectivity.ProxyTracker;
 import com.android.server.connectivity.QosCallbackTracker;
+import com.android.server.connectivity.SatelliteAccessController;
 import com.android.server.connectivity.TcpKeepaliveController;
 import com.android.server.connectivity.UidRangeUtils;
 import com.android.server.connectivity.VpnProfileStore;
@@ -641,6 +644,7 @@
     @Mock DestroySocketsWrapper mDestroySocketsWrapper;
     @Mock SubscriptionManager mSubscriptionManager;
     @Mock KeepaliveTracker.Dependencies mMockKeepaliveTrackerDependencies;
+    @Mock SatelliteAccessController mSatelliteAccessController;
 
     // BatteryStatsManager is final and cannot be mocked with regular mockito, so just mock the
     // underlying binder calls.
@@ -2053,11 +2057,21 @@
         @Override
         public CarrierPrivilegeAuthenticator makeCarrierPrivilegeAuthenticator(
                 @NonNull final Context context,
-                @NonNull final TelephonyManager tm) {
+                @NonNull final TelephonyManager tm,
+                final boolean requestRestrictedWifiEnabled,
+                CarrierPrivilegesLostListener listener) {
             return mDeps.isAtLeastT() ? mCarrierPrivilegeAuthenticator : null;
         }
 
         @Override
+        public SatelliteAccessController makeSatelliteAccessController(
+                @NonNull final Context context,
+                Consumer<Set<Integer>> updateSatelliteNetworkFallbackUidCallback,
+                @NonNull final Handler connectivityServiceInternalHandler) {
+            return mSatelliteAccessController;
+        }
+
+        @Override
         public boolean intentFilterEquals(final PendingIntent a, final PendingIntent b) {
             return runAsShell(GET_INTENT_SENDER_INTENT, () -> a.intentFilterEquals(b));
         }
@@ -2147,6 +2161,8 @@
                 case ConnectivityFlags.NO_REMATCH_ALL_REQUESTS_ON_REGISTER:
                 case ConnectivityFlags.CARRIER_SERVICE_CHANGED_USE_CALLBACK:
                     return true;
+                case ConnectivityFlags.REQUEST_RESTRICTED_WIFI:
+                    return true;
                 case KEY_DESTROY_FROZEN_SOCKETS_VERSION:
                     return true;
                 case DELAY_DESTROY_FROZEN_SOCKETS_VERSION:
@@ -2163,6 +2179,8 @@
                     return true;
                 case LOG_BPF_RC:
                     return true;
+                case ALLOW_SATALLITE_NETWORK_FALLBACK:
+                    return true;
                 default:
                     return super.isFeatureNotChickenedOut(context, name);
             }
@@ -17353,6 +17371,14 @@
                 .build();
     }
 
+    private NetworkRequest getRestrictedRequestForWifiWithSubIds() {
+        return new NetworkRequest.Builder()
+            .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+            .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
+            .setSubscriptionIds(Collections.singleton(Process.myUid()))
+            .build();
+    }
+
     @Test
     public void testNetworkRequestWithSubIdsWithNetworkFactoryPermission() throws Exception {
         mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_GRANTED);
@@ -17386,6 +17412,134 @@
     }
 
     @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testCarrierConfigAppSendNetworkRequestForRestrictedWifi() throws Exception {
+        mServiceContext.setPermission(CONNECTIVITY_USE_RESTRICTED_NETWORKS, PERMISSION_DENIED);
+        doReturn(true).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(anyInt(), any());
+        final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                mContext, 0 /* requestCode */, new Intent("a"), FLAG_IMMUTABLE);
+        final NetworkCallback networkCallback1 = new NetworkCallback();
+        final NetworkCallback networkCallback2 = new NetworkCallback();
+
+        mCm.requestNetwork(getRestrictedRequestForWifiWithSubIds(), networkCallback1);
+        mCm.requestNetwork(getRestrictedRequestForWifiWithSubIds(), pendingIntent);
+        mCm.registerNetworkCallback(getRestrictedRequestForWifiWithSubIds(), networkCallback2);
+
+        mCm.unregisterNetworkCallback(networkCallback1);
+        mCm.releaseNetworkRequest(pendingIntent);
+        mCm.unregisterNetworkCallback(networkCallback2);
+    }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testRestrictedRequestRemovedDueToCarrierPrivilegesLost() throws Exception {
+        mServiceContext.setPermission(CONNECTIVITY_USE_RESTRICTED_NETWORKS, PERMISSION_DENIED);
+        NetworkCapabilities filter = getRestrictedRequestForWifiWithSubIds().networkCapabilities;
+        final HandlerThread handlerThread = new HandlerThread("testRestrictedFactoryRequests");
+        handlerThread.start();
+        final MockNetworkFactory testFactory = new MockNetworkFactory(handlerThread.getLooper(),
+                mServiceContext, "testFactory", filter, mCsHandlerThread);
+        testFactory.register();
+
+        testFactory.assertRequestCountEquals(0);
+        doReturn(true).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(eq(Process.myUid()), any());
+        final TestNetworkCallback networkCallback1 = new TestNetworkCallback();
+        final NetworkRequest networkrequest1 = getRestrictedRequestForWifiWithSubIds();
+        mCm.requestNetwork(networkrequest1, networkCallback1);
+        testFactory.expectRequestAdd();
+        testFactory.assertRequestCountEquals(1);
+
+        NetworkCapabilities nc = new NetworkCapabilities.Builder(filter)
+                .setAllowedUids(Set.of(Process.myUid()))
+                .build();
+        mWiFiAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI, new LinkProperties(), nc);
+        mWiFiAgent.connect(true);
+        networkCallback1.expectAvailableThenValidatedCallbacks(mWiFiAgent);
+
+        final NetworkAgentInfo nai = mService.getNetworkAgentInfoForNetwork(
+                mWiFiAgent.getNetwork());
+
+        doReturn(false).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(eq(Process.myUid()), any());
+        final CarrierPrivilegesLostListener carrierPrivilegesLostListener =
+                mService.getCarrierPrivilegesLostListener();
+        carrierPrivilegesLostListener.onCarrierPrivilegesLost(Process.myUid());
+        waitForIdle();
+
+        testFactory.expectRequestRemove();
+        testFactory.assertRequestCountEquals(0);
+        assertTrue(nai.networkCapabilities.getAllowedUidsNoCopy().isEmpty());
+        networkCallback1.expect(NETWORK_CAPS_UPDATED);
+        networkCallback1.expect(UNAVAILABLE);
+
+        handlerThread.quitSafely();
+        handlerThread.join();
+    }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testRequestNotRemoved_MismatchUid() throws Exception {
+        mServiceContext.setPermission(CONNECTIVITY_USE_RESTRICTED_NETWORKS, PERMISSION_DENIED);
+        NetworkCapabilities filter = getRestrictedRequestForWifiWithSubIds().networkCapabilities;
+        final HandlerThread handlerThread = new HandlerThread("testRestrictedFactoryRequests");
+        handlerThread.start();
+
+        final MockNetworkFactory testFactory = new MockNetworkFactory(handlerThread.getLooper(),
+                mServiceContext, "testFactory", filter, mCsHandlerThread);
+        testFactory.register();
+
+        doReturn(true).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(anyInt(), any());
+        final TestNetworkCallback networkCallback1 = new TestNetworkCallback();
+        final NetworkRequest networkrequest1 = getRestrictedRequestForWifiWithSubIds();
+        mCm.requestNetwork(networkrequest1, networkCallback1);
+        testFactory.expectRequestAdd();
+        testFactory.assertRequestCountEquals(1);
+
+        doReturn(false).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(eq(Process.myUid()), any());
+        final CarrierPrivilegesLostListener carrierPrivilegesLostListener =
+                mService.getCarrierPrivilegesLostListener();
+        carrierPrivilegesLostListener.onCarrierPrivilegesLost(Process.myUid() + 1);
+        expectNoRequestChanged(testFactory);
+
+        handlerThread.quitSafely();
+        handlerThread.join();
+    }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testRequestNotRemoved_HasRestrictedNetworkPermission() throws Exception {
+        mServiceContext.setPermission(CONNECTIVITY_USE_RESTRICTED_NETWORKS, PERMISSION_GRANTED);
+        NetworkCapabilities filter = getRestrictedRequestForWifiWithSubIds().networkCapabilities;
+        final HandlerThread handlerThread = new HandlerThread("testRestrictedFactoryRequests");
+        handlerThread.start();
+
+        final MockNetworkFactory testFactory = new MockNetworkFactory(handlerThread.getLooper(),
+                mServiceContext, "testFactory", filter, mCsHandlerThread);
+        testFactory.register();
+
+        doReturn(true).when(mCarrierPrivilegeAuthenticator)
+            .isCarrierServiceUidForNetworkCapabilities(anyInt(), any());
+        final TestNetworkCallback networkCallback1 = new TestNetworkCallback();
+        final NetworkRequest networkrequest1 = getRestrictedRequestForWifiWithSubIds();
+        mCm.requestNetwork(networkrequest1, networkCallback1);
+        testFactory.expectRequestAdd();
+        testFactory.assertRequestCountEquals(1);
+
+        doReturn(false).when(mCarrierPrivilegeAuthenticator)
+                .isCarrierServiceUidForNetworkCapabilities(eq(Process.myUid()), any());
+        final CarrierPrivilegesLostListener carrierPrivilegesLostListener =
+                mService.getCarrierPrivilegesLostListener();
+        carrierPrivilegesLostListener.onCarrierPrivilegesLost(Process.myUid());
+        expectNoRequestChanged(testFactory);
+
+        handlerThread.quitSafely();
+        handlerThread.join();
+    }
+    @Test
     public void testAllowedUids() throws Exception {
         final int preferenceOrder =
                 ConnectivityService.PREFERENCE_ORDER_IRRELEVANT_BECAUSE_NOT_DEFAULT;
diff --git a/tests/unit/java/com/android/server/connectivity/CarrierPrivilegeAuthenticatorTest.java b/tests/unit/java/com/android/server/connectivity/CarrierPrivilegeAuthenticatorTest.java
index f07593e..9f0ec30 100644
--- a/tests/unit/java/com/android/server/connectivity/CarrierPrivilegeAuthenticatorTest.java
+++ b/tests/unit/java/com/android/server/connectivity/CarrierPrivilegeAuthenticatorTest.java
@@ -20,6 +20,7 @@
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
 import static android.telephony.TelephonyManager.ACTION_MULTI_SIM_CONFIG_CHANGED;
 
+import static com.android.server.connectivity.CarrierPrivilegeAuthenticator.CarrierPrivilegesLostListener;
 import static com.android.server.connectivity.ConnectivityFlags.CARRIER_SERVICE_CHANGED_USE_CALLBACK;
 
 import static org.junit.Assert.assertEquals;
@@ -54,10 +55,12 @@
 import com.android.networkstack.apishim.common.TelephonyManagerShim.CarrierPrivilegesListenerShim;
 import com.android.networkstack.apishim.common.UnsupportedApiLevelException;
 import com.android.server.connectivity.CarrierPrivilegeAuthenticator.Dependencies;
+import com.android.testutils.DevSdkIgnoreRule;
 import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;
 import com.android.testutils.DevSdkIgnoreRunner;
 
 import org.junit.After;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.Parameterized;
@@ -67,6 +70,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Map;
+import java.util.Set;
 
 /**
  * Tests for CarrierPrivilegeAuthenticatorTest.
@@ -77,6 +81,9 @@
 @RunWith(DevSdkIgnoreRunner.class)
 @IgnoreUpTo(Build.VERSION_CODES.S_V2)
 public class CarrierPrivilegeAuthenticatorTest {
+    @Rule
+    public final DevSdkIgnoreRule ignoreRule = new DevSdkIgnoreRule();
+
     private static final int SUBSCRIPTION_COUNT = 2;
     private static final int TEST_SUBSCRIPTION_ID = 1;
 
@@ -85,7 +92,9 @@
     @NonNull private final TelephonyManagerShimImpl mTelephonyManagerShim;
     @NonNull private final PackageManager mPackageManager;
     @NonNull private TestCarrierPrivilegeAuthenticator mCarrierPrivilegeAuthenticator;
+    @NonNull private final CarrierPrivilegesLostListener mListener;
     private final int mCarrierConfigPkgUid = 12345;
+    private final boolean mUseCallbacks;
     private final String mTestPkg = "com.android.server.connectivity.test";
     private final BroadcastReceiver mMultiSimBroadcastReceiver;
     @NonNull private final HandlerThread mHandlerThread;
@@ -94,7 +103,8 @@
         TestCarrierPrivilegeAuthenticator(@NonNull final Context c,
                 @NonNull final Dependencies deps,
                 @NonNull final TelephonyManager t) {
-            super(c, deps, t, mTelephonyManagerShim);
+            super(c, deps, t, mTelephonyManagerShim, true /* requestRestrictedWifiEnabled */,
+                    mListener);
         }
         @Override
         protected int getSlotIndex(int subId) {
@@ -119,7 +129,9 @@
         mTelephonyManager = mock(TelephonyManager.class);
         mTelephonyManagerShim = mock(TelephonyManagerShimImpl.class);
         mPackageManager = mock(PackageManager.class);
+        mListener = mock(CarrierPrivilegesLostListener.class);
         mHandlerThread = new HandlerThread(CarrierPrivilegeAuthenticatorTest.class.getSimpleName());
+        mUseCallbacks = useCallbacks;
         final Dependencies deps = mock(Dependencies.class);
         doReturn(useCallbacks).when(deps).isFeatureEnabled(any() /* context */,
                 eq(CARRIER_SERVICE_CHANGED_USE_CALLBACK));
@@ -220,6 +232,18 @@
     }
 
     @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testCarrierPrivilegesLostDueToCarrierServiceUpdate() throws Exception {
+        final CarrierPrivilegesListenerShim l = getCarrierPrivilegesListeners().get(0);
+
+        l.onCarrierServiceChanged(null, mCarrierConfigPkgUid);
+        l.onCarrierServiceChanged(null, mCarrierConfigPkgUid + 1);
+        if (mUseCallbacks) {
+            verify(mListener).onCarrierPrivilegesLost(eq(mCarrierConfigPkgUid));
+        }
+    }
+
+    @Test
     public void testOnCarrierPrivilegesChanged() throws Exception {
         final CarrierPrivilegesListenerShim listener = getCarrierPrivilegesListeners().get(0);
 
@@ -264,4 +288,32 @@
         assertFalse(mCarrierPrivilegeAuthenticator.isCarrierServiceUidForNetworkCapabilities(
                 mCarrierConfigPkgUid, ncBuilder.build()));
     }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testNetworkCapabilitiesContainOneSubId() throws Exception {
+        final CarrierPrivilegesListenerShim listener = getCarrierPrivilegesListeners().get(0);
+        listener.onCarrierServiceChanged(null, mCarrierConfigPkgUid);
+
+        final NetworkCapabilities.Builder ncBuilder = new NetworkCapabilities.Builder();
+        ncBuilder.addTransportType(TRANSPORT_WIFI);
+        ncBuilder.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
+        ncBuilder.setSubscriptionIds(Set.of(0));
+        assertTrue(mCarrierPrivilegeAuthenticator.isCarrierServiceUidForNetworkCapabilities(
+                mCarrierConfigPkgUid, ncBuilder.build()));
+    }
+
+    @Test
+    @IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+    public void testNetworkCapabilitiesContainTwoSubIds() throws Exception {
+        final CarrierPrivilegesListenerShim listener = getCarrierPrivilegesListeners().get(0);
+        listener.onCarrierServiceChanged(null, mCarrierConfigPkgUid);
+
+        final NetworkCapabilities.Builder ncBuilder = new NetworkCapabilities.Builder();
+        ncBuilder.addTransportType(TRANSPORT_WIFI);
+        ncBuilder.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
+        ncBuilder.setSubscriptionIds(Set.of(0, 1));
+        assertFalse(mCarrierPrivilegeAuthenticator.isCarrierServiceUidForNetworkCapabilities(
+                mCarrierConfigPkgUid, ncBuilder.build()));
+    }
 }
diff --git a/tests/unit/java/com/android/server/connectivity/SatelliteAccessControllerTest.kt b/tests/unit/java/com/android/server/connectivity/SatelliteAccessControllerTest.kt
new file mode 100644
index 0000000..64a515a
--- /dev/null
+++ b/tests/unit/java/com/android/server/connectivity/SatelliteAccessControllerTest.kt
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2024 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.server.connectivity
+
+import android.Manifest
+import android.app.role.OnRoleHoldersChangedListener
+import android.app.role.RoleManager
+import android.content.Context
+import android.content.pm.ApplicationInfo
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Handler
+import android.os.UserHandle
+import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo
+import com.android.testutils.DevSdkIgnoreRunner
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentCaptor
+import org.mockito.ArgumentMatchers.any
+import org.mockito.ArgumentMatchers.anyInt
+import org.mockito.ArgumentMatchers.eq
+import org.mockito.Mockito.doReturn
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.never
+import org.mockito.Mockito.times
+import org.mockito.Mockito.verify
+import java.util.concurrent.Executor
+import java.util.function.Consumer
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+private const val DEFAULT_MESSAGING_APP1 = "default_messaging_app_1"
+private const val DEFAULT_MESSAGING_APP2 = "default_messaging_app_2"
+private const val DEFAULT_MESSAGING_APP1_UID = 1234
+private const val DEFAULT_MESSAGING_APP2_UID = 5678
+
+@RunWith(DevSdkIgnoreRunner::class)
+@IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+class SatelliteAccessControllerTest {
+    private val context = mock(Context::class.java)
+    private val mPackageManager = mock(PackageManager::class.java)
+    private val mHandler = mock(Handler::class.java)
+    private val mRoleManager =
+        mock(SatelliteAccessController.Dependencies::class.java)
+    private val mCallback = mock(Consumer::class.java) as Consumer<Set<Int>>
+    private val mSatelliteAccessController by lazy {
+        SatelliteAccessController(context, mRoleManager, mCallback, mHandler)}
+    private var mRoleHolderChangedListener: OnRoleHoldersChangedListener? = null
+    @Before
+    @Throws(PackageManager.NameNotFoundException::class)
+    fun setup() {
+        doReturn(mPackageManager).`when`(context).packageManager
+        doReturn(PackageManager.PERMISSION_GRANTED)
+            .`when`(mPackageManager)
+            .checkPermission(Manifest.permission.SATELLITE_COMMUNICATION, DEFAULT_MESSAGING_APP1)
+        doReturn(PackageManager.PERMISSION_GRANTED)
+            .`when`(mPackageManager)
+            .checkPermission(Manifest.permission.SATELLITE_COMMUNICATION, DEFAULT_MESSAGING_APP2)
+
+        // Initialise default message application package1
+        val applicationInfo1 = ApplicationInfo()
+        applicationInfo1.uid = DEFAULT_MESSAGING_APP1_UID
+        doReturn(applicationInfo1)
+            .`when`(mPackageManager)
+            .getApplicationInfo(eq(DEFAULT_MESSAGING_APP1), anyInt())
+
+        // Initialise default message application package2
+        val applicationInfo2 = ApplicationInfo()
+        applicationInfo2.uid = DEFAULT_MESSAGING_APP2_UID
+        doReturn(applicationInfo2)
+            .`when`(mPackageManager)
+            .getApplicationInfo(eq(DEFAULT_MESSAGING_APP2), anyInt())
+
+        // Get registered listener using captor
+        val listenerCaptor = ArgumentCaptor.forClass(
+            OnRoleHoldersChangedListener::class.java
+        )
+        mSatelliteAccessController.start()
+        verify(mRoleManager).addOnRoleHoldersChangedListenerAsUser(
+            any(Executor::class.java), listenerCaptor.capture(), any(UserHandle::class.java))
+        mRoleHolderChangedListener = listenerCaptor.value
+    }
+
+    @Test
+    fun test_onRoleHoldersChanged_SatellitePreferredUid_Changed() {
+        doReturn(listOf<String>()).`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        val satelliteNetworkPreferredSet =
+            ArgumentCaptor.forClass(Set::class.java) as ArgumentCaptor<Set<Int>>
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, never()).accept(satelliteNetworkPreferredSet.capture())
+
+        // check DEFAULT_MESSAGING_APP1 is available as satellite network preferred uid
+        doReturn(listOf(DEFAULT_MESSAGING_APP1))
+            .`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback).accept(satelliteNetworkPreferredSet.capture())
+        var satelliteNetworkPreferredUids = satelliteNetworkPreferredSet.value
+        assertEquals(1, satelliteNetworkPreferredUids.size)
+        assertTrue(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP1_UID))
+        assertFalse(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP2_UID))
+
+        // check DEFAULT_MESSAGING_APP1 and DEFAULT_MESSAGING_APP2 is available
+        // as satellite network preferred uid
+        val dmas: MutableList<String> = ArrayList()
+        dmas.add(DEFAULT_MESSAGING_APP1)
+        dmas.add(DEFAULT_MESSAGING_APP2)
+        doReturn(dmas).`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, times(2))
+            .accept(satelliteNetworkPreferredSet.capture())
+        satelliteNetworkPreferredUids = satelliteNetworkPreferredSet.value
+        assertEquals(2, satelliteNetworkPreferredUids.size)
+        assertTrue(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP1_UID))
+        assertTrue(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP2_UID))
+
+        // check no uid is available as satellite network preferred uid
+        doReturn(listOf<String>()).`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, times(3))
+            .accept(satelliteNetworkPreferredSet.capture())
+        satelliteNetworkPreferredUids = satelliteNetworkPreferredSet.value
+        assertEquals(0, satelliteNetworkPreferredUids.size)
+        assertFalse(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP1_UID))
+        assertFalse(satelliteNetworkPreferredUids.contains(DEFAULT_MESSAGING_APP2_UID))
+
+        // No Change received at OnRoleSmsChanged, check callback not triggered
+        doReturn(listOf<String>()).`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, times(3))
+            .accept(satelliteNetworkPreferredSet.capture())
+    }
+
+    @Test
+    fun test_onRoleHoldersChanged_NoSatelliteCommunicationPermission() {
+        doReturn(listOf<Any>()).`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        val satelliteNetworkPreferredSet =
+            ArgumentCaptor.forClass(Set::class.java) as ArgumentCaptor<Set<Int>>
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, never()).accept(satelliteNetworkPreferredSet.capture())
+
+        // check DEFAULT_MESSAGING_APP1 is not available as satellite network preferred uid
+        // since satellite communication permission not available.
+        doReturn(PackageManager.PERMISSION_DENIED)
+            .`when`(mPackageManager)
+            .checkPermission(Manifest.permission.SATELLITE_COMMUNICATION, DEFAULT_MESSAGING_APP1)
+        doReturn(listOf(DEFAULT_MESSAGING_APP1))
+            .`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_SMS, UserHandle.ALL)
+        verify(mCallback, never()).accept(satelliteNetworkPreferredSet.capture())
+    }
+
+    @Test
+    fun test_onRoleHoldersChanged_RoleSms_NotAvailable() {
+        doReturn(listOf(DEFAULT_MESSAGING_APP1))
+            .`when`(mRoleManager).getRoleHolders(RoleManager.ROLE_SMS)
+        val satelliteNetworkPreferredSet =
+            ArgumentCaptor.forClass(Set::class.java) as ArgumentCaptor<Set<Int>>
+        mRoleHolderChangedListener?.onRoleHoldersChanged(RoleManager.ROLE_BROWSER, UserHandle.ALL)
+        verify(mCallback, never()).accept(satelliteNetworkPreferredSet.capture())
+    }
+}
diff --git a/tests/unit/java/com/android/server/connectivityservice/CSSatelliteNetworkFallbackTest.kt b/tests/unit/java/com/android/server/connectivityservice/CSSatelliteNetworkFallbackTest.kt
new file mode 100644
index 0000000..9024641
--- /dev/null
+++ b/tests/unit/java/com/android/server/connectivityservice/CSSatelliteNetworkFallbackTest.kt
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2023 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.server
+
+import android.net.IpPrefix
+import android.net.INetd
+import android.net.LinkAddress
+import android.net.LinkProperties
+import android.net.NativeNetworkConfig
+import android.net.NativeNetworkType
+import android.net.NetworkCapabilities
+import android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET
+import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED
+import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_ROAMING
+import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_SUSPENDED
+import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED
+import android.net.NetworkScore
+import android.net.NetworkCapabilities.TRANSPORT_SATELLITE
+import android.net.NetworkScore.KEEP_CONNECTED_FOR_TEST
+import android.net.RouteInfo
+import android.net.UidRange
+import android.net.UidRangeParcel
+import android.net.VpnManager
+import android.net.netd.aidl.NativeUidRangeConfig
+import android.os.Build
+import android.os.UserHandle
+import android.util.ArraySet
+import com.android.net.module.util.CollectionUtils
+import com.android.server.ConnectivityService.PREFERENCE_ORDER_SATELLITE_FALLBACK
+import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo
+import com.android.testutils.DevSdkIgnoreRunner
+import com.android.testutils.visibleOnHandlerThread
+import org.junit.Assert
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentMatchers.any
+import org.mockito.Mockito.inOrder
+import org.mockito.Mockito.never
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+private const val SECONDARY_USER = 10
+private val SECONDARY_USER_HANDLE = UserHandle(SECONDARY_USER)
+private const val TEST_PACKAGE_UID = 123
+private const val TEST_PACKAGE_UID2 = 321
+
+@DevSdkIgnoreRunner.MonitorThreadLeak
+@RunWith(DevSdkIgnoreRunner::class)
+@IgnoreUpTo(Build.VERSION_CODES.TIRAMISU)
+class CSSatelliteNetworkPreferredTest : CSTest() {
+    /**
+     * Test createMultiLayerNrisFromSatelliteNetworkPreferredUids returns correct
+     * NetworkRequestInfo.
+     */
+    @Test
+    fun testCreateMultiLayerNrisFromSatelliteNetworkPreferredUids() {
+        // Verify that empty uid set should not create any NRI for it.
+        val nrisNoUid = service.createMultiLayerNrisFromSatelliteNetworkFallbackUids(emptySet())
+        Assert.assertEquals(0, nrisNoUid.size.toLong())
+        val uid1 = PRIMARY_USER_HANDLE.getUid(TEST_PACKAGE_UID)
+        val uid2 = PRIMARY_USER_HANDLE.getUid(TEST_PACKAGE_UID2)
+        val uid3 = SECONDARY_USER_HANDLE.getUid(TEST_PACKAGE_UID)
+        assertCreateMultiLayerNrisFromSatelliteNetworkPreferredUids(mutableSetOf(uid1))
+        assertCreateMultiLayerNrisFromSatelliteNetworkPreferredUids(mutableSetOf(uid1, uid3))
+        assertCreateMultiLayerNrisFromSatelliteNetworkPreferredUids(mutableSetOf(uid1, uid2))
+    }
+
+    /**
+     * Test that SATELLITE_NETWORK_PREFERENCE_UIDS changes will send correct net id and uid ranges
+     * to netd.
+     */
+    @Test
+    fun testSatelliteNetworkPreferredUidsChanged() {
+        val netdInOrder = inOrder(netd)
+
+        val satelliteAgent = createSatelliteAgent("satellite0")
+        satelliteAgent.connect()
+
+        val satelliteNetId = satelliteAgent.network.netId
+        netdInOrder.verify(netd).networkCreate(
+            nativeNetworkConfigPhysical(satelliteNetId, INetd.PERMISSION_NONE))
+
+        val uid1 = PRIMARY_USER_HANDLE.getUid(TEST_PACKAGE_UID)
+        val uid2 = PRIMARY_USER_HANDLE.getUid(TEST_PACKAGE_UID2)
+        val uid3 = SECONDARY_USER_HANDLE.getUid(TEST_PACKAGE_UID)
+
+        // Initial satellite network preferred uids status.
+        setAndUpdateSatelliteNetworkPreferredUids(setOf())
+        netdInOrder.verify(netd, never()).networkAddUidRangesParcel(any())
+        netdInOrder.verify(netd, never()).networkRemoveUidRangesParcel(any())
+
+        // Set SATELLITE_NETWORK_PREFERENCE_UIDS setting and verify that net id and uid ranges
+        // send to netd
+        var uids = mutableSetOf(uid1, uid2, uid3)
+        val uidRanges1 = toUidRangeStableParcels(uidRangesForUids(uids))
+        val config1 = NativeUidRangeConfig(
+            satelliteNetId, uidRanges1,
+            PREFERENCE_ORDER_SATELLITE_FALLBACK
+        )
+        setAndUpdateSatelliteNetworkPreferredUids(uids)
+        netdInOrder.verify(netd).networkAddUidRangesParcel(config1)
+        netdInOrder.verify(netd, never()).networkRemoveUidRangesParcel(any())
+
+        // Set SATELLITE_NETWORK_PREFERENCE_UIDS setting again and verify that old rules are removed
+        // and new rules are added.
+        uids = mutableSetOf(uid1)
+        val uidRanges2: Array<UidRangeParcel?> = toUidRangeStableParcels(uidRangesForUids(uids))
+        val config2 = NativeUidRangeConfig(
+            satelliteNetId, uidRanges2,
+            PREFERENCE_ORDER_SATELLITE_FALLBACK
+        )
+        setAndUpdateSatelliteNetworkPreferredUids(uids)
+        netdInOrder.verify(netd).networkRemoveUidRangesParcel(config1)
+        netdInOrder.verify(netd).networkAddUidRangesParcel(config2)
+    }
+
+    private fun assertCreateMultiLayerNrisFromSatelliteNetworkPreferredUids(uids: Set<Int>) {
+        val nris: Set<ConnectivityService.NetworkRequestInfo> =
+            service.createMultiLayerNrisFromSatelliteNetworkFallbackUids(uids)
+        val nri = nris.iterator().next()
+        // Verify that one NRI is created with multilayer requests. Because one NRI can contain
+        // multiple uid ranges, so it only need create one NRI here.
+        assertEquals(1, nris.size.toLong())
+        assertTrue(nri.isMultilayerRequest)
+        assertEquals(nri.uids, uidRangesForUids(uids))
+        assertEquals(PREFERENCE_ORDER_SATELLITE_FALLBACK, nri.mPreferenceOrder)
+    }
+
+    private fun setAndUpdateSatelliteNetworkPreferredUids(uids: Set<Int>) {
+        visibleOnHandlerThread(csHandler) {
+            deps.satelliteNetworkFallbackUidUpdate!!.accept(uids)
+        }
+    }
+
+    private fun nativeNetworkConfigPhysical(netId: Int, permission: Int) =
+        NativeNetworkConfig(netId, NativeNetworkType.PHYSICAL, permission,
+            false /* secure */, VpnManager.TYPE_VPN_NONE, false /* excludeLocalRoutes */)
+
+    private fun createSatelliteAgent(name: String): CSAgentWrapper {
+        return Agent(score = keepScore(), lp = lp(name),
+            nc = nc(TRANSPORT_SATELLITE, NET_CAPABILITY_INTERNET)
+        )
+    }
+
+    private fun toUidRangeStableParcels(ranges: Set<UidRange>): Array<UidRangeParcel?> {
+        val stableRanges = arrayOfNulls<UidRangeParcel>(ranges.size)
+        for ((index, range) in ranges.withIndex()) {
+            stableRanges[index] = UidRangeParcel(range.start, range.stop)
+        }
+        return stableRanges
+    }
+
+    private fun uidRangesForUids(vararg uids: Int): Set<UidRange> {
+        val ranges = ArraySet<UidRange>()
+        for (uid in uids) {
+            ranges.add(UidRange(uid, uid))
+        }
+        return ranges
+    }
+
+    private fun uidRangesForUids(uids: Collection<Int>): Set<UidRange> {
+        return uidRangesForUids(*CollectionUtils.toIntArray(uids))
+    }
+
+    private fun nc(transport: Int, vararg caps: Int) = NetworkCapabilities.Builder().apply {
+        addTransportType(transport)
+        caps.forEach {
+            addCapability(it)
+        }
+        // Useful capabilities for everybody
+        addCapability(NET_CAPABILITY_NOT_RESTRICTED)
+        addCapability(NET_CAPABILITY_NOT_SUSPENDED)
+        addCapability(NET_CAPABILITY_NOT_ROAMING)
+        addCapability(NET_CAPABILITY_NOT_VCN_MANAGED)
+    }.build()
+
+    private fun lp(iface: String) = LinkProperties().apply {
+        interfaceName = iface
+        addLinkAddress(LinkAddress(LOCAL_IPV4_ADDRESS, 32))
+        addRoute(RouteInfo(IpPrefix("0.0.0.0/0"), null, null))
+    }
+
+    // This allows keeping all the networks connected without having to file individual requests
+    // for them.
+    private fun keepScore() = FromS(
+        NetworkScore.Builder().setKeepConnectedReason(KEEP_CONNECTED_FOR_TEST).build()
+    )
+}
diff --git a/tests/unit/java/com/android/server/connectivityservice/base/CSTest.kt b/tests/unit/java/com/android/server/connectivityservice/base/CSTest.kt
index 0708669..5bdd060 100644
--- a/tests/unit/java/com/android/server/connectivityservice/base/CSTest.kt
+++ b/tests/unit/java/com/android/server/connectivityservice/base/CSTest.kt
@@ -59,6 +59,7 @@
 import com.android.networkstack.apishim.common.UnsupportedApiLevelException
 import com.android.server.connectivity.AutomaticOnOffKeepaliveTracker
 import com.android.server.connectivity.CarrierPrivilegeAuthenticator
+import com.android.server.connectivity.CarrierPrivilegeAuthenticator.CarrierPrivilegesLostListener
 import com.android.server.connectivity.ClatCoordinator
 import com.android.server.connectivity.ConnectivityFlags
 import com.android.server.connectivity.MulticastRoutingCoordinatorService
@@ -66,7 +67,7 @@
 import com.android.server.connectivity.MultinetworkPolicyTrackerTestDependencies
 import com.android.server.connectivity.NetworkRequestStateStatsMetrics
 import com.android.server.connectivity.ProxyTracker
-import com.android.server.connectivity.RoutingCoordinatorService
+import com.android.server.connectivity.SatelliteAccessController
 import com.android.testutils.visibleOnHandlerThread
 import com.android.testutils.waitForIdle
 import java.util.concurrent.Executors
@@ -77,6 +78,7 @@
 import org.mockito.Mockito.doAnswer
 import org.mockito.Mockito.doReturn
 import org.mockito.Mockito.mock
+import java.util.function.Consumer
 
 internal const val HANDLER_TIMEOUT_MS = 2_000
 internal const val BROADCAST_TIMEOUT_MS = 3_000L
@@ -133,10 +135,12 @@
     // permissions using static contexts.
     val enabledFeatures = HashMap<String, Boolean>().also {
         it[ConnectivityFlags.NO_REMATCH_ALL_REQUESTS_ON_REGISTER] = true
+        it[ConnectivityFlags.REQUEST_RESTRICTED_WIFI] = true
         it[ConnectivityService.KEY_DESTROY_FROZEN_SOCKETS_VERSION] = true
         it[ConnectivityService.DELAY_DESTROY_FROZEN_SOCKETS_VERSION] = true
         it[ConnectivityService.ALLOW_SYSUI_CONNECTIVITY_REPORTS] = true
         it[ConnectivityService.LOG_BPF_RC] = true
+        it[ConnectivityService.ALLOW_SATALLITE_NETWORK_FALLBACK] = true
     }
     fun enableFeature(f: String) = enabledFeatures.set(f, true)
     fun disableFeature(f: String) = enabledFeatures.set(f, false)
@@ -173,6 +177,7 @@
     }
 
     val multicastRoutingCoordinatorService = mock<MulticastRoutingCoordinatorService>()
+    val satelliteAccessController = mock<SatelliteAccessController>()
 
     val deps = CSDeps()
     val service = makeConnectivityService(context, netd, deps).also { it.systemReadyInternal() }
@@ -200,9 +205,21 @@
 
         override fun makeCarrierPrivilegeAuthenticator(
                 context: Context,
-                tm: TelephonyManager
+                tm: TelephonyManager,
+                requestRestrictedWifiEnabled: Boolean,
+                listener: CarrierPrivilegesLostListener
         ) = if (SdkLevel.isAtLeastT()) mock<CarrierPrivilegeAuthenticator>() else null
 
+        var satelliteNetworkFallbackUidUpdate: Consumer<Set<Int>>? = null
+        override fun makeSatelliteAccessController(
+            context: Context,
+            updateSatelliteNetworkFallackUid: Consumer<Set<Int>>?,
+            csHandlerThread: Handler
+        ): SatelliteAccessController? {
+            satelliteNetworkFallbackUidUpdate = updateSatelliteNetworkFallackUid
+            return satelliteAccessController
+        }
+
         private inner class AOOKTDeps(c: Context) : AutomaticOnOffKeepaliveTracker.Dependencies(c) {
             override fun isTetheringFeatureNotChickenedOut(name: String): Boolean {
                 return isFeatureEnabled(context, name)