From e58fea5a45586b5a81d6ef8da3bcd132206c3b9b Mon Sep 17 00:00:00 2001
From: Soonil Nagarkar <sooniln@google.com>
Date: Wed, 16 Jun 2021 15:03:05 -0700
Subject: [PATCH] Add ADAS GNSS bypass functionality

ADAS applications on automotive device require a way to access GNSS
sensors even when the master location toggle is off, so that they can
provide automotive safety services.

Bug: 156688086
Test: atest LocationProviderManagerTest
Change-Id: I438a781b2202c488da97f7ea732f87403d1068e4
---
 core/res/res/values/config.xml                |   4 +
 core/res/res/values/symbols.xml               |   1 +
 .../android/location/ILocationManager.aidl    |   3 +
 .../android/location/LastLocationRequest.java |  60 +++++-
 .../android/location/LocationManager.java     |  63 ++++++
 .../android/location/LocationRequest.java     |  72 ++++++-
 .../location/provider/ProviderRequest.java    |  53 ++++-
 .../location/LocationManagerService.java      | 187 +++++++++++++++---
 .../server/location/LocationShellCommand.java |  70 ++++++-
 .../location/eventlog/LocationEventLog.java   |  52 +++--
 .../location/gnss/GnssLocationProvider.java   |   4 +-
 .../server/location/injector/Injector.java    |   4 +
 .../injector/SystemSettingsHelper.java        |   2 -
 .../provider/LocationProviderManager.java     |  91 +++++++--
 .../location/settings/LocationSettings.java   | 173 ++++++++++++++++
 .../settings/LocationUserSettings.java        |  98 +++++++++
 .../location/settings/SettingsStore.java      | 166 ++++++++++++++++
 .../location/gnss/GnssGeofenceProxyTest.java  |   4 +-
 .../location/injector/FakeAppOpsHelper.java   |   7 +-
 .../location/injector/FakeSettingsHelper.java |   4 +-
 .../location/injector/TestInjector.java       |  13 +-
 .../provider/LocationProviderManagerTest.java | 110 ++++++++++-
 ...tionaryThrottlingLocationProviderTest.java |   4 +-
 .../settings/FakeLocationSettings.java        |  54 +++++
 .../settings/LocationSettingsTest.java        | 171 ++++++++++++++++
 25 files changed, 1378 insertions(+), 92 deletions(-)
 create mode 100644 services/core/java/com/android/server/location/settings/LocationSettings.java
 create mode 100644 services/core/java/com/android/server/location/settings/LocationUserSettings.java
 create mode 100644 services/core/java/com/android/server/location/settings/SettingsStore.java
 create mode 100644 services/tests/mockingservicestests/src/com/android/server/location/settings/FakeLocationSettings.java
 create mode 100644 services/tests/mockingservicestests/src/com/android/server/location/settings/LocationSettingsTest.java

diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index f4aff9467ceeb..424505a426b6a 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1706,6 +1706,10 @@
          config_enableFusedLocationOverlay is false. -->
     <string name="config_fusedLocationProviderPackageName" translatable="false">com.android.location.fused</string>
 
+    <!-- Default value for the ADAS GNSS Location Enabled setting if this setting has never been
+         set before. -->
+    <bool name="config_defaultAdasGnssLocationEnabled" translatable="false">false</bool>
+
     <string-array name="config_locationExtraPackageNames" translatable="false"></string-array>
 
     <!-- The package name of the default network recommendation app.
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 5f849b4e1eb00..8be260e5dcee7 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -1918,6 +1918,7 @@
   <java-symbol type="bool" name="config_tintNotificationActionButtons" />
   <java-symbol type="bool" name="config_dozeAfterScreenOffByDefault" />
   <java-symbol type="bool" name="config_enableActivityRecognitionHardwareOverlay" />
+  <java-symbol type="bool" name="config_defaultAdasGnssLocationEnabled" />
   <java-symbol type="bool" name="config_enableFusedLocationOverlay" />
   <java-symbol type="bool" name="config_enableGeocoderOverlay" />
   <java-symbol type="bool" name="config_enableGeofenceOverlay" />
diff --git a/location/java/android/location/ILocationManager.aidl b/location/java/android/location/ILocationManager.aidl
index c9e4e0a9cb92b..5d5c0fc6265df 100644
--- a/location/java/android/location/ILocationManager.aidl
+++ b/location/java/android/location/ILocationManager.aidl
@@ -122,6 +122,9 @@ interface ILocationManager
     boolean isLocationEnabledForUser(int userId);
     void setLocationEnabledForUser(boolean enabled, int userId);
 
+    boolean isAdasGnssLocationEnabledForUser(int userId);
+    void setAdasGnssLocationEnabledForUser(boolean enabled, int userId);
+
     void addTestProvider(String name, in ProviderProperties properties,
         in List<String> locationTags, String packageName, @nullable String attributionTag);
     void removeTestProvider(String provider, String packageName, @nullable String attributionTag);
diff --git a/location/java/android/location/LastLocationRequest.java b/location/java/android/location/LastLocationRequest.java
index 9ea8048ad476e..0970c1c76a36d 100644
--- a/location/java/android/location/LastLocationRequest.java
+++ b/location/java/android/location/LastLocationRequest.java
@@ -34,12 +34,15 @@ import java.util.Objects;
 public final class LastLocationRequest implements Parcelable {
 
     private final boolean mHiddenFromAppOps;
+    private final boolean mAdasGnssBypass;
     private final boolean mLocationSettingsIgnored;
 
     private LastLocationRequest(
             boolean hiddenFromAppOps,
+            boolean adasGnssBypass,
             boolean locationSettingsIgnored) {
         mHiddenFromAppOps = hiddenFromAppOps;
+        mAdasGnssBypass = adasGnssBypass;
         mLocationSettingsIgnored = locationSettingsIgnored;
     }
 
@@ -55,6 +58,21 @@ public final class LastLocationRequest implements Parcelable {
         return mHiddenFromAppOps;
     }
 
+    /**
+     * Returns true if this request may access GNSS even if location settings would normally deny
+     * this, in order to enable automotive safety features. This field is only respected on
+     * automotive devices, and only if the client is recognized as a legitimate ADAS (Advanced
+     * Driving Assistance Systems) application.
+     *
+     * @return true if all limiting factors will be ignored to satisfy GNSS request
+     * @hide
+     */
+    // TODO: make this system api
+    public boolean isAdasGnssBypass() {
+        return mAdasGnssBypass;
+    }
+
+
     /**
      * Returns true if location settings, throttling, background location limits, and any other
      * possible limiting factors will be ignored in order to satisfy this last location request.
@@ -65,12 +83,22 @@ public final class LastLocationRequest implements Parcelable {
         return mLocationSettingsIgnored;
     }
 
+    /**
+     * Returns true if any bypass flag is set on this request. For internal use only.
+     *
+     * @hide
+     */
+    public boolean isBypass() {
+        return mAdasGnssBypass || mLocationSettingsIgnored;
+    }
+
     public static final @NonNull Parcelable.Creator<LastLocationRequest> CREATOR =
             new Parcelable.Creator<LastLocationRequest>() {
                 @Override
                 public LastLocationRequest createFromParcel(Parcel in) {
                     return new LastLocationRequest(
                             /* hiddenFromAppOps= */ in.readBoolean(),
+                            /* adasGnssBypass= */ in.readBoolean(),
                             /* locationSettingsIgnored= */ in.readBoolean());
                 }
                 @Override
@@ -86,6 +114,7 @@ public final class LastLocationRequest implements Parcelable {
     @Override
     public void writeToParcel(@NonNull Parcel parcel, int flags) {
         parcel.writeBoolean(mHiddenFromAppOps);
+        parcel.writeBoolean(mAdasGnssBypass);
         parcel.writeBoolean(mLocationSettingsIgnored);
     }
 
@@ -99,12 +128,13 @@ public final class LastLocationRequest implements Parcelable {
         }
         LastLocationRequest that = (LastLocationRequest) o;
         return mHiddenFromAppOps == that.mHiddenFromAppOps
+                && mAdasGnssBypass == that.mAdasGnssBypass
                 && mLocationSettingsIgnored == that.mLocationSettingsIgnored;
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(mHiddenFromAppOps, mLocationSettingsIgnored);
+        return Objects.hash(mHiddenFromAppOps, mAdasGnssBypass, mLocationSettingsIgnored);
     }
 
     @NonNull
@@ -115,8 +145,11 @@ public final class LastLocationRequest implements Parcelable {
         if (mHiddenFromAppOps) {
             s.append("hiddenFromAppOps, ");
         }
+        if (mAdasGnssBypass) {
+            s.append("adasGnssBypass, ");
+        }
         if (mLocationSettingsIgnored) {
-            s.append("locationSettingsIgnored, ");
+            s.append("settingsBypass, ");
         }
         if (s.length() > "LastLocationRequest[".length()) {
             s.setLength(s.length() - 2);
@@ -131,6 +164,7 @@ public final class LastLocationRequest implements Parcelable {
     public static final class Builder {
 
         private boolean mHiddenFromAppOps;
+        private boolean mAdasGnssBypass;
         private boolean mLocationSettingsIgnored;
 
         /**
@@ -138,6 +172,7 @@ public final class LastLocationRequest implements Parcelable {
          */
         public Builder() {
             mHiddenFromAppOps = false;
+            mAdasGnssBypass = false;
             mLocationSettingsIgnored = false;
         }
 
@@ -146,6 +181,7 @@ public final class LastLocationRequest implements Parcelable {
          */
         public Builder(@NonNull LastLocationRequest lastLocationRequest) {
             mHiddenFromAppOps = lastLocationRequest.mHiddenFromAppOps;
+            mAdasGnssBypass = lastLocationRequest.mAdasGnssBypass;
             mLocationSettingsIgnored = lastLocationRequest.mLocationSettingsIgnored;
         }
 
@@ -163,6 +199,25 @@ public final class LastLocationRequest implements Parcelable {
             return this;
         }
 
+        /**
+         * If set to true, indicates that the client is an ADAS (Advanced Driving Assistance
+         * Systems) client, which requires access to GNSS even if location settings would normally
+         * deny this, in order to enable auto safety features. This field is only respected on
+         * automotive devices, and only if the client is recognized as a legitimate ADAS
+         * application. Defaults to false.
+         *
+         * <p>Permissions enforcement occurs when resulting location request is actually used, not
+         * when this method is invoked.
+         *
+         * @hide
+         */
+        // TODO: make this system api
+        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
+        public @NonNull LastLocationRequest.Builder setAdasGnssBypass(boolean adasGnssBypass) {
+            mAdasGnssBypass = adasGnssBypass;
+            return this;
+        }
+
         /**
          * If set to true, indicates that location settings, throttling, background location limits,
          * and any other possible limiting factors should be ignored in order to satisfy this
@@ -186,6 +241,7 @@ public final class LastLocationRequest implements Parcelable {
         public @NonNull LastLocationRequest build() {
             return new LastLocationRequest(
                     mHiddenFromAppOps,
+                    mAdasGnssBypass,
                     mLocationSettingsIgnored);
         }
     }
diff --git a/location/java/android/location/LocationManager.java b/location/java/android/location/LocationManager.java
index ae44c5e345210..526b84e85e383 100644
--- a/location/java/android/location/LocationManager.java
+++ b/location/java/android/location/LocationManager.java
@@ -314,6 +314,33 @@ public class LocationManager {
      */
     public static final String EXTRA_LOCATION_ENABLED = "android.location.extra.LOCATION_ENABLED";
 
+    /**
+     * Broadcast intent action when the ADAS (Advanced Driving Assistance Systems) GNSS location
+     * enabled state changes. Includes a boolean intent extra, {@link #EXTRA_ADAS_GNSS_ENABLED},
+     * with the enabled state of ADAS GNSS location. This broadcast only has meaning on automotive
+     * devices.
+     *
+     * @see #EXTRA_ADAS_GNSS_ENABLED
+     * @see #isAdasGnssLocationEnabled()
+     *
+     * @hide
+     */
+    // TODO: @SystemApi
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_ADAS_GNSS_ENABLED_CHANGED =
+            "android.location.action.ADAS_GNSS_ENABLED_CHANGED";
+
+    /**
+     * Intent extra included with {@link #ACTION_ADAS_GNSS_ENABLED_CHANGED} broadcasts, containing
+     * the boolean enabled state of ADAS GNSS location.
+     *
+     * @see #ACTION_ADAS_GNSS_ENABLED_CHANGED
+     *
+     * @hide
+     */
+    // TODO: @SystemApi
+    public static final String EXTRA_ADAS_GNSS_ENABLED = "android.location.extra.ADAS_GNSS_ENABLED";
+
     /**
      * Broadcast intent action indicating that a high power location requests
      * has either started or stopped being active.  The current state of
@@ -620,6 +647,42 @@ public class LocationManager {
         }
     }
 
+    /**
+     * Returns the current enabled/disabled state of ADAS (Advanced Driving Assistance Systems)
+     * GNSS location access for the given user. This controls safety critical automotive access to
+     * GNSS location. This only has meaning on automotive devices.
+     *
+     * @return true if ADAS location is enabled and false if ADAS location is disabled.
+     *
+     * @hide
+     */
+    //TODO: @SystemApi
+    public boolean isAdasGnssLocationEnabled() {
+        try {
+            return mService.isAdasGnssLocationEnabledForUser(mContext.getUser().getIdentifier());
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
+    /**
+     * Enables or disables ADAS (Advanced Driving Assistance Systems) GNSS location access for the
+     * given user. This only has meaning on automotive devices.
+     *
+     * @param enabled true to enable ADAS location and false to disable ADAS location.
+     *
+     * @hide
+     */
+    // TODO: @SystemApi
+    @RequiresPermission(WRITE_SECURE_SETTINGS)
+    public void setAdasGnssLocationEnabled(boolean enabled) {
+        try {
+            mService.setAdasGnssLocationEnabledForUser(enabled, mContext.getUser().getIdentifier());
+        } catch (RemoteException e) {
+            throw e.rethrowFromSystemServer();
+        }
+    }
+
     /**
      * Returns the current enabled/disabled status of the given provider. To listen for changes, see
      * {@link #PROVIDERS_CHANGED_ACTION}.
diff --git a/location/java/android/location/LocationRequest.java b/location/java/android/location/LocationRequest.java
index a3842a1ffd0ae..b48e59676ac19 100644
--- a/location/java/android/location/LocationRequest.java
+++ b/location/java/android/location/LocationRequest.java
@@ -194,6 +194,7 @@ public final class LocationRequest implements Parcelable {
     private float mMinUpdateDistanceMeters;
     private final long mMaxUpdateDelayMillis;
     private boolean mHideFromAppOps;
+    private final boolean mAdasGnssBypass;
     private boolean mLocationSettingsIgnored;
     private boolean mLowPower;
     private @Nullable WorkSource mWorkSource;
@@ -236,7 +237,7 @@ public final class LocationRequest implements Parcelable {
         if (LocationManager.PASSIVE_PROVIDER.equals(provider)) {
             quality = POWER_NONE;
         } else if (LocationManager.GPS_PROVIDER.equals(provider)) {
-            quality = ACCURACY_FINE;
+            quality = QUALITY_HIGH_ACCURACY;
         } else {
             quality = POWER_LOW;
         }
@@ -289,6 +290,7 @@ public final class LocationRequest implements Parcelable {
             float minUpdateDistanceMeters,
             long maxUpdateDelayMillis,
             boolean hiddenFromAppOps,
+            boolean adasGnssBypass,
             boolean locationSettingsIgnored,
             boolean lowPower,
             WorkSource workSource) {
@@ -302,8 +304,9 @@ public final class LocationRequest implements Parcelable {
         mMinUpdateDistanceMeters = minUpdateDistanceMeters;
         mMaxUpdateDelayMillis = maxUpdateDelayMillis;
         mHideFromAppOps = hiddenFromAppOps;
-        mLowPower = lowPower;
+        mAdasGnssBypass = adasGnssBypass;
         mLocationSettingsIgnored = locationSettingsIgnored;
+        mLowPower = lowPower;
         mWorkSource = Objects.requireNonNull(workSource);
     }
 
@@ -339,15 +342,15 @@ public final class LocationRequest implements Parcelable {
         switch (quality) {
             case POWER_HIGH:
                 // fall through
-            case ACCURACY_FINE:
+            case QUALITY_HIGH_ACCURACY:
                 mQuality = QUALITY_HIGH_ACCURACY;
                 break;
-            case ACCURACY_BLOCK:
+            case QUALITY_BALANCED_POWER_ACCURACY:
                 mQuality = QUALITY_BALANCED_POWER_ACCURACY;
                 break;
             case POWER_LOW:
                 // fall through
-            case ACCURACY_CITY:
+            case QUALITY_LOW_POWER:
                 mQuality = QUALITY_LOW_POWER;
                 break;
             case POWER_NONE:
@@ -647,6 +650,21 @@ public final class LocationRequest implements Parcelable {
         return mHideFromAppOps;
     }
 
+    /**
+     * Returns true if this request may access GNSS even if location settings would normally deny
+     * this, in order to enable automotive safety features. This field is only respected on
+     * automotive devices, and only if the client is recognized as a legitimate ADAS (Advanced
+     * Driving Assistance Systems) application.
+     *
+     * @return true if all limiting factors will be ignored to satisfy GNSS request
+     *
+     * @hide
+     */
+    // TODO: @SystemApi
+    public boolean isAdasGnssBypass() {
+        return mAdasGnssBypass;
+    }
+
     /**
      * @hide
      * @deprecated LocationRequests should be treated as immutable.
@@ -672,6 +690,15 @@ public final class LocationRequest implements Parcelable {
         return mLocationSettingsIgnored;
     }
 
+    /**
+     * Returns true if any bypass flag is set on this request. For internal use only.
+     *
+     * @hide
+     */
+    public boolean isBypass() {
+        return mAdasGnssBypass || mLocationSettingsIgnored;
+    }
+
     /**
      * @hide
      * @deprecated LocationRequests should be treated as immutable.
@@ -749,6 +776,7 @@ public final class LocationRequest implements Parcelable {
                             /* minUpdateDistanceMeters= */ in.readFloat(),
                             /* maxUpdateDelayMillis= */ in.readLong(),
                             /* hiddenFromAppOps= */ in.readBoolean(),
+                            /* adasGnssBypass= */ in.readBoolean(),
                             /* locationSettingsIgnored= */ in.readBoolean(),
                             /* lowPower= */ in.readBoolean(),
                             /* workSource= */ in.readTypedObject(WorkSource.CREATOR));
@@ -777,6 +805,7 @@ public final class LocationRequest implements Parcelable {
         parcel.writeFloat(mMinUpdateDistanceMeters);
         parcel.writeLong(mMaxUpdateDelayMillis);
         parcel.writeBoolean(mHideFromAppOps);
+        parcel.writeBoolean(mAdasGnssBypass);
         parcel.writeBoolean(mLocationSettingsIgnored);
         parcel.writeBoolean(mLowPower);
         parcel.writeTypedObject(mWorkSource, 0);
@@ -801,6 +830,7 @@ public final class LocationRequest implements Parcelable {
                 && Float.compare(that.mMinUpdateDistanceMeters, mMinUpdateDistanceMeters) == 0
                 && mMaxUpdateDelayMillis == that.mMaxUpdateDelayMillis
                 && mHideFromAppOps == that.mHideFromAppOps
+                && mAdasGnssBypass == that.mAdasGnssBypass
                 && mLocationSettingsIgnored == that.mLocationSettingsIgnored
                 && mLowPower == that.mLowPower
                 && Objects.equals(mProvider, that.mProvider)
@@ -866,8 +896,11 @@ public final class LocationRequest implements Parcelable {
         if (mHideFromAppOps) {
             s.append(", hiddenFromAppOps");
         }
+        if (mAdasGnssBypass) {
+            s.append(", adasGnssBypass");
+        }
         if (mLocationSettingsIgnored) {
-            s.append(", locationSettingsIgnored");
+            s.append(", settingsBypass");
         }
         if (mWorkSource != null && !mWorkSource.isEmpty()) {
             s.append(", ").append(mWorkSource);
@@ -889,6 +922,7 @@ public final class LocationRequest implements Parcelable {
         private float mMinUpdateDistanceMeters;
         private long mMaxUpdateDelayMillis;
         private boolean mHiddenFromAppOps;
+        private boolean mAdasGnssBypass;
         private boolean mLocationSettingsIgnored;
         private boolean mLowPower;
         @Nullable private WorkSource mWorkSource;
@@ -908,6 +942,7 @@ public final class LocationRequest implements Parcelable {
             mMinUpdateDistanceMeters = 0;
             mMaxUpdateDelayMillis = 0;
             mHiddenFromAppOps = false;
+            mAdasGnssBypass = false;
             mLocationSettingsIgnored = false;
             mLowPower = false;
             mWorkSource = null;
@@ -925,6 +960,7 @@ public final class LocationRequest implements Parcelable {
             mMinUpdateDistanceMeters = locationRequest.mMinUpdateDistanceMeters;
             mMaxUpdateDelayMillis = locationRequest.mMaxUpdateDelayMillis;
             mHiddenFromAppOps = locationRequest.mHideFromAppOps;
+            mAdasGnssBypass = locationRequest.mAdasGnssBypass;
             mLocationSettingsIgnored = locationRequest.mLocationSettingsIgnored;
             mLowPower = locationRequest.mLowPower;
             mWorkSource = locationRequest.mWorkSource;
@@ -977,10 +1013,10 @@ public final class LocationRequest implements Parcelable {
         public @NonNull Builder setQuality(@NonNull Criteria criteria) {
             switch (criteria.getAccuracy()) {
                 case Criteria.ACCURACY_COARSE:
-                    mQuality = ACCURACY_BLOCK;
+                    mQuality = QUALITY_BALANCED_POWER_ACCURACY;
                     break;
                 case Criteria.ACCURACY_FINE:
-                    mQuality = ACCURACY_FINE;
+                    mQuality = QUALITY_HIGH_ACCURACY;
                     break;
                 default: {
                     if (criteria.getPowerRequirement() == Criteria.POWER_HIGH) {
@@ -1091,6 +1127,25 @@ public final class LocationRequest implements Parcelable {
             return this;
         }
 
+        /**
+         * If set to true, indicates that the client is an ADAS (Advanced Driving Assistance
+         * Systems) client, which requires access to GNSS even if location settings would normally
+         * deny this, in order to enable auto safety features. This field is only respected on
+         * automotive devices, and only if the client is recognized as a legitimate ADAS
+         * application. Defaults to false.
+         *
+         * <p>Permissions enforcement occurs when resulting location request is actually used, not
+         * when this method is invoked.
+         *
+         * @hide
+         */
+        // TODO: @SystemApi
+        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
+        public @NonNull Builder setAdasGnssBypass(boolean adasGnssBypass) {
+            mAdasGnssBypass = adasGnssBypass;
+            return this;
+        }
+
         /**
          * If set to true, indicates that location settings, throttling, background location limits,
          * and any other possible limiting factors should be ignored in order to satisfy this
@@ -1171,6 +1226,7 @@ public final class LocationRequest implements Parcelable {
                     mMinUpdateDistanceMeters,
                     mMaxUpdateDelayMillis,
                     mHiddenFromAppOps,
+                    mAdasGnssBypass,
                     mLocationSettingsIgnored,
                     mLowPower,
                     new WorkSource(mWorkSource));
diff --git a/location/java/android/location/provider/ProviderRequest.java b/location/java/android/location/provider/ProviderRequest.java
index b72d36519e721..4f33a529a8125 100644
--- a/location/java/android/location/provider/ProviderRequest.java
+++ b/location/java/android/location/provider/ProviderRequest.java
@@ -44,12 +44,19 @@ public final class ProviderRequest implements Parcelable {
     public static final long INTERVAL_DISABLED = Long.MAX_VALUE;
 
     public static final @NonNull ProviderRequest EMPTY_REQUEST = new ProviderRequest(
-            INTERVAL_DISABLED, QUALITY_BALANCED_POWER_ACCURACY, 0, false, false, new WorkSource());
+            INTERVAL_DISABLED,
+            QUALITY_BALANCED_POWER_ACCURACY,
+            0,
+            false,
+            false,
+            false,
+            new WorkSource());
 
     private final long mIntervalMillis;
     private final @Quality int mQuality;
     private final long mMaxUpdateDelayMillis;
     private final boolean mLowPower;
+    private final boolean mAdasGnssBypass;
     private final boolean mLocationSettingsIgnored;
     private final WorkSource mWorkSource;
 
@@ -72,12 +79,14 @@ public final class ProviderRequest implements Parcelable {
             @Quality int quality,
             long maxUpdateDelayMillis,
             boolean lowPower,
+            boolean adasGnssBypass,
             boolean locationSettingsIgnored,
             @NonNull WorkSource workSource) {
         mIntervalMillis = intervalMillis;
         mQuality = quality;
         mMaxUpdateDelayMillis = maxUpdateDelayMillis;
         mLowPower = lowPower;
+        mAdasGnssBypass = adasGnssBypass;
         mLocationSettingsIgnored = locationSettingsIgnored;
         mWorkSource = Objects.requireNonNull(workSource);
     }
@@ -125,6 +134,18 @@ public final class ProviderRequest implements Parcelable {
         return mLowPower;
     }
 
+    /**
+     * Returns true if this request may access GNSS even if location settings would normally deny
+     * this, in order to enable automotive safety features. This field is only respected on
+     * automotive devices, and only if the client is recognized as a legitimate ADAS (Advanced
+     * Driving Assistance Systems) application.
+     *
+     * @hide
+     */
+    public boolean isAdasGnssBypass() {
+        return mAdasGnssBypass;
+    }
+
     /**
      * Whether the provider should ignore all location settings, user consents, power restrictions
      * or any other restricting factors and always satisfy this request to the best of their
@@ -134,6 +155,15 @@ public final class ProviderRequest implements Parcelable {
         return mLocationSettingsIgnored;
     }
 
+    /**
+     * Returns true if any bypass flag is set on this request.
+     *
+     * @hide
+     */
+    public boolean isBypass() {
+        return mAdasGnssBypass || mLocationSettingsIgnored;
+    }
+
     /**
      * The power blame for this provider request.
      */
@@ -153,6 +183,7 @@ public final class ProviderRequest implements Parcelable {
                         /* quality= */ in.readInt(),
                         /* maxUpdateDelayMillis= */ in.readLong(),
                         /* lowPower= */ in.readBoolean(),
+                        /* adasGnssBypass= */ in.readBoolean(),
                         /* locationSettingsIgnored= */ in.readBoolean(),
                         /* workSource= */ in.readTypedObject(WorkSource.CREATOR));
             }
@@ -176,6 +207,7 @@ public final class ProviderRequest implements Parcelable {
             parcel.writeInt(mQuality);
             parcel.writeLong(mMaxUpdateDelayMillis);
             parcel.writeBoolean(mLowPower);
+            parcel.writeBoolean(mAdasGnssBypass);
             parcel.writeBoolean(mLocationSettingsIgnored);
             parcel.writeTypedObject(mWorkSource, flags);
         }
@@ -198,6 +230,7 @@ public final class ProviderRequest implements Parcelable {
                     && mQuality == that.mQuality
                     && mMaxUpdateDelayMillis == that.mMaxUpdateDelayMillis
                     && mLowPower == that.mLowPower
+                    && mAdasGnssBypass == that.mAdasGnssBypass
                     && mLocationSettingsIgnored == that.mLocationSettingsIgnored
                     && mWorkSource.equals(that.mWorkSource);
         }
@@ -229,8 +262,11 @@ public final class ProviderRequest implements Parcelable {
             if (mLowPower) {
                 s.append(", lowPower");
             }
+            if (mAdasGnssBypass) {
+                s.append(", adasGnssBypass");
+            }
             if (mLocationSettingsIgnored) {
-                s.append(", locationSettingsIgnored");
+                s.append(", settingsBypass");
             }
             if (!mWorkSource.isEmpty()) {
                 s.append(", ").append(mWorkSource);
@@ -246,10 +282,12 @@ public final class ProviderRequest implements Parcelable {
      * A Builder for {@link ProviderRequest}s.
      */
     public static final class Builder {
+
         private long mIntervalMillis = INTERVAL_DISABLED;
         private int mQuality = QUALITY_BALANCED_POWER_ACCURACY;
         private long mMaxUpdateDelayMillis = 0;
         private boolean mLowPower;
+        private boolean mAdasGnssBypass;
         private boolean mLocationSettingsIgnored;
         private WorkSource mWorkSource = new WorkSource();
 
@@ -298,6 +336,16 @@ public final class ProviderRequest implements Parcelable {
             return this;
         }
 
+        /**
+         * Sets whether this ADAS request should bypass GNSS settings. False by default.
+         *
+         * @hide
+         */
+        public @NonNull Builder setAdasGnssBypass(boolean adasGnssBypass) {
+            this.mAdasGnssBypass = adasGnssBypass;
+            return this;
+        }
+
         /**
          * Sets whether location settings should be ignored. False by default.
          */
@@ -326,6 +374,7 @@ public final class ProviderRequest implements Parcelable {
                         mQuality,
                         mMaxUpdateDelayMillis,
                         mLowPower,
+                        mAdasGnssBypass,
                         mLocationSettingsIgnored,
                         mWorkSource);
             }
diff --git a/services/core/java/com/android/server/location/LocationManagerService.java b/services/core/java/com/android/server/location/LocationManagerService.java
index aeb1893c78b6f..e6210b2a8cc96 100644
--- a/services/core/java/com/android/server/location/LocationManagerService.java
+++ b/services/core/java/com/android/server/location/LocationManagerService.java
@@ -45,6 +45,7 @@ import android.app.PendingIntent;
 import android.app.compat.CompatChanges;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.location.Criteria;
 import android.location.GeocoderParams;
 import android.location.Geofence;
@@ -91,6 +92,7 @@ import android.util.IndentingPrintWriter;
 import android.util.Log;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.DumpUtils;
 import com.android.internal.util.Preconditions;
 import com.android.server.FgThread;
@@ -134,6 +136,8 @@ import com.android.server.location.provider.PassiveLocationProvider;
 import com.android.server.location.provider.PassiveLocationProviderManager;
 import com.android.server.location.provider.StationaryThrottlingLocationProvider;
 import com.android.server.location.provider.proxy.ProxyLocationProvider;
+import com.android.server.location.settings.LocationSettings;
+import com.android.server.location.settings.LocationUserSettings;
 import com.android.server.pm.permission.LegacyPermissionManagerInternal;
 
 import java.io.FileDescriptor;
@@ -270,6 +274,8 @@ public class LocationManagerService extends ILocationManager.Stub implements
 
         mGeofenceManager = new GeofenceManager(mContext, injector);
 
+        mInjector.getLocationSettings().registerLocationUserSettingsListener(
+                this::onLocationUserSettingsChanged);
         mInjector.getSettingsHelper().addOnLocationEnabledChangedListener(
                 this::onLocationModeChanged);
         mInjector.getSettingsHelper().addIgnoreSettingsAllowlistChangedListener(
@@ -476,6 +482,25 @@ public class LocationManagerService extends ILocationManager.Stub implements
         }
     }
 
+    private void onLocationUserSettingsChanged(int userId, LocationUserSettings oldSettings,
+            LocationUserSettings newSettings) {
+        if (oldSettings.isAdasGnssLocationEnabled() != newSettings.isAdasGnssLocationEnabled()) {
+            boolean enabled = newSettings.isAdasGnssLocationEnabled();
+
+            if (D) {
+                Log.d(TAG, "[u" + userId + "] adas gnss location enabled = " + enabled);
+            }
+
+            EVENT_LOG.logAdasLocationEnabled(userId, enabled);
+
+            Intent intent = new Intent(LocationManager.ACTION_ADAS_GNSS_ENABLED_CHANGED)
+                    .putExtra(LocationManager.EXTRA_ADAS_GNSS_ENABLED, enabled)
+                    .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY)
+                    .addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
+            mContext.sendBroadcastAsUser(intent, UserHandle.of(userId));
+        }
+    }
+
     private void onLocationModeChanged(int userId) {
         boolean enabled = mInjector.getSettingsHelper().isLocationEnabled(userId);
         LocationManager.invalidateLocalLocationEnabledCaches();
@@ -661,7 +686,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
         // clients in the system process must have an attribution tag set
         Preconditions.checkState(identity.getPid() != Process.myPid() || attributionTag != null);
 
-        request = validateLocationRequest(request, identity);
+        request = validateLocationRequest(provider, request, identity);
 
         LocationProviderManager manager = getLocationProviderManager(provider);
         Preconditions.checkArgument(manager != null,
@@ -687,7 +712,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
                     new IllegalArgumentException());
         }
 
-        request = validateLocationRequest(request, identity);
+        request = validateLocationRequest(provider, request, identity);
 
         LocationProviderManager manager = getLocationProviderManager(provider);
         Preconditions.checkArgument(manager != null,
@@ -725,7 +750,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
             }
         }
 
-        request = validateLocationRequest(request, identity);
+        request = validateLocationRequest(provider, request, identity);
 
         LocationProviderManager manager = getLocationProviderManager(provider);
         Preconditions.checkArgument(manager != null,
@@ -734,33 +759,27 @@ public class LocationManagerService extends ILocationManager.Stub implements
         manager.registerLocationRequest(request, identity, permissionLevel, pendingIntent);
     }
 
-    private LocationRequest validateLocationRequest(LocationRequest request,
+    private LocationRequest validateLocationRequest(String provider, LocationRequest request,
             CallerIdentity identity) {
+        // validate unsanitized request
         if (!request.getWorkSource().isEmpty()) {
             mContext.enforceCallingOrSelfPermission(
                     permission.UPDATE_DEVICE_STATS,
                     "setting a work source requires " + permission.UPDATE_DEVICE_STATS);
         }
-        if (request.isHiddenFromAppOps()) {
-            mContext.enforceCallingOrSelfPermission(
-                    permission.UPDATE_APP_OPS_STATS,
-                    "hiding from app ops requires " + permission.UPDATE_APP_OPS_STATS);
-        }
-        if (request.isLocationSettingsIgnored()) {
-            mContext.enforceCallingOrSelfPermission(
-                    permission.WRITE_SECURE_SETTINGS,
-                    "ignoring location settings requires " + permission.WRITE_SECURE_SETTINGS);
-        }
 
+        // sanitize request
         LocationRequest.Builder sanitized = new LocationRequest.Builder(request);
 
-        if (CompatChanges.isChangeEnabled(LOW_POWER_EXCEPTIONS, Binder.getCallingUid())) {
-            if (request.isLowPower()) {
-                mContext.enforceCallingOrSelfPermission(
-                        permission.LOCATION_HARDWARE,
-                        "low power request requires " + permission.LOCATION_HARDWARE);
-            }
-        } else {
+        if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)
+                && GPS_PROVIDER.equals(provider)
+                && ArrayUtils.contains(mContext.getResources().getStringArray(
+                com.android.internal.R.array.config_locationDriverAssistancePackageNames),
+                identity.getPackageName())) {
+            sanitized.setAdasGnssBypass(true);
+        }
+
+        if (!CompatChanges.isChangeEnabled(LOW_POWER_EXCEPTIONS, Binder.getCallingUid())) {
             if (mContext.checkCallingPermission(permission.LOCATION_HARDWARE)
                     != PERMISSION_GRANTED) {
                 sanitized.setLowPower(false);
@@ -786,7 +805,52 @@ public class LocationManagerService extends ILocationManager.Stub implements
         }
         sanitized.setWorkSource(workSource);
 
-        return sanitized.build();
+        request = sanitized.build();
+
+        // validate sanitized request
+        boolean isLocationProvider = mLocalService.isProvider(null, identity);
+
+        if (request.isLowPower() && CompatChanges.isChangeEnabled(LOW_POWER_EXCEPTIONS,
+                identity.getUid())) {
+            mContext.enforceCallingOrSelfPermission(
+                    permission.LOCATION_HARDWARE,
+                    "low power request requires " + permission.LOCATION_HARDWARE);
+        }
+        if (request.isHiddenFromAppOps()) {
+            mContext.enforceCallingOrSelfPermission(
+                    permission.UPDATE_APP_OPS_STATS,
+                    "hiding from app ops requires " + permission.UPDATE_APP_OPS_STATS);
+        }
+        if (request.isAdasGnssBypass()) {
+            if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
+                throw new IllegalArgumentException(
+                        "adas gnss bypass requests are only allowed on automotive devices");
+            }
+            if (!GPS_PROVIDER.equals(provider)) {
+                throw new IllegalArgumentException(
+                        "adas gnss bypass requests are only allowed on the \"gps\" provider");
+            }
+            if (!ArrayUtils.contains(mContext.getResources().getStringArray(
+                    com.android.internal.R.array.config_locationDriverAssistancePackageNames),
+                    identity.getPackageName())) {
+                throw new SecurityException(
+                        "only verified adas packages may use adas gnss bypass requests");
+            }
+            if (!isLocationProvider) {
+                mContext.enforceCallingOrSelfPermission(
+                        permission.WRITE_SECURE_SETTINGS,
+                        "adas gnss bypass requires " + permission.WRITE_SECURE_SETTINGS);
+            }
+        }
+        if (request.isLocationSettingsIgnored()) {
+            if (!isLocationProvider) {
+                mContext.enforceCallingOrSelfPermission(
+                        permission.WRITE_SECURE_SETTINGS,
+                        "ignoring location settings requires " + permission.WRITE_SECURE_SETTINGS);
+            }
+        }
+
+        return request;
     }
 
     @Override
@@ -834,7 +898,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
         // clients in the system process must have an attribution tag set
         Preconditions.checkArgument(identity.getPid() != Process.myPid() || attributionTag != null);
 
-        request = validateLastLocationRequest(request);
+        request = validateLastLocationRequest(provider, request, identity);
 
         LocationProviderManager manager = getLocationProviderManager(provider);
         if (manager == null) {
@@ -844,16 +908,58 @@ public class LocationManagerService extends ILocationManager.Stub implements
         return manager.getLastLocation(request, identity, permissionLevel);
     }
 
-    private LastLocationRequest validateLastLocationRequest(LastLocationRequest request) {
+    private LastLocationRequest validateLastLocationRequest(String provider,
+            LastLocationRequest request,
+            CallerIdentity identity) {
+        // sanitize request
+        LastLocationRequest.Builder sanitized = new LastLocationRequest.Builder(request);
+
+        if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)
+                && GPS_PROVIDER.equals(provider)
+                && ArrayUtils.contains(mContext.getResources().getStringArray(
+                com.android.internal.R.array.config_locationDriverAssistancePackageNames),
+                identity.getPackageName())) {
+            sanitized.setAdasGnssBypass(true);
+        }
+
+        request = sanitized.build();
+
+        // validate request
+        boolean isLocationProvider = mLocalService.isProvider(null, identity);
+
         if (request.isHiddenFromAppOps()) {
             mContext.enforceCallingOrSelfPermission(
                     permission.UPDATE_APP_OPS_STATS,
                     "hiding from app ops requires " + permission.UPDATE_APP_OPS_STATS);
         }
+
+        if (request.isAdasGnssBypass()) {
+            if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
+                throw new IllegalArgumentException(
+                        "adas gnss bypass requests are only allowed on automotive devices");
+            }
+            if (!GPS_PROVIDER.equals(provider)) {
+                throw new IllegalArgumentException(
+                        "adas gnss bypass requests are only allowed on the \"gps\" provider");
+            }
+            if (!ArrayUtils.contains(mContext.getResources().getStringArray(
+                    com.android.internal.R.array.config_locationDriverAssistancePackageNames),
+                    identity.getPackageName())) {
+                throw new SecurityException(
+                        "only verified adas packages may use adas gnss bypass requests");
+            }
+            if (!isLocationProvider) {
+                mContext.enforceCallingOrSelfPermission(
+                        permission.WRITE_SECURE_SETTINGS,
+                        "adas gnss bypass requires " + permission.WRITE_SECURE_SETTINGS);
+            }
+        }
         if (request.isLocationSettingsIgnored()) {
-            mContext.enforceCallingOrSelfPermission(
-                    permission.WRITE_SECURE_SETTINGS,
-                    "ignoring location settings requires " + permission.WRITE_SECURE_SETTINGS);
+            if (!isLocationProvider) {
+                mContext.enforceCallingOrSelfPermission(
+                        permission.WRITE_SECURE_SETTINGS,
+                        "ignoring location settings requires " + permission.WRITE_SECURE_SETTINGS);
+            }
         }
 
         return request;
@@ -1125,6 +1231,24 @@ public class LocationManagerService extends ILocationManager.Stub implements
         return mInjector.getSettingsHelper().isLocationEnabled(userId);
     }
 
+    @Override
+    public void setAdasGnssLocationEnabledForUser(boolean enabled, int userId) {
+        userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
+                userId, false, false, "setAdasGnssLocationEnabledForUser", null);
+
+        mContext.enforceCallingOrSelfPermission(permission.WRITE_SECURE_SETTINGS, null);
+
+        mInjector.getLocationSettings().updateUserSettings(userId,
+                settings -> settings.withAdasGnssLocationEnabled(enabled));
+    }
+
+    @Override
+    public boolean isAdasGnssLocationEnabledForUser(int userId) {
+        userId = ActivityManager.handleIncomingUser(Binder.getCallingPid(), Binder.getCallingUid(),
+                userId, false, false, "isAdasGnssLocationEnabledForUser", null);
+        return mInjector.getLocationSettings().getUserSettings(userId).isAdasGnssLocationEnabled();
+    }
+
     @Override
     public boolean isProviderEnabledForUser(String provider, int userId) {
         return mLocalService.isProviderEnabledForUser(provider, userId);
@@ -1555,11 +1679,12 @@ public class LocationManagerService extends ILocationManager.Stub implements
         }
     }
 
-    private static class SystemInjector implements Injector {
+    private static final class SystemInjector implements Injector {
 
         private final Context mContext;
 
         private final UserInfoHelper mUserInfoHelper;
+        private final LocationSettings mLocationSettings;
         private final AlarmHelper mAlarmHelper;
         private final SystemAppOpsHelper mAppOpsHelper;
         private final SystemLocationPermissionsHelper mLocationPermissionsHelper;
@@ -1584,6 +1709,7 @@ public class LocationManagerService extends ILocationManager.Stub implements
             mContext = context;
 
             mUserInfoHelper = userInfoHelper;
+            mLocationSettings = new LocationSettings(context);
             mAlarmHelper = new SystemAlarmHelper(context);
             mAppOpsHelper = new SystemAppOpsHelper(context);
             mLocationPermissionsHelper = new SystemLocationPermissionsHelper(context,
@@ -1620,6 +1746,11 @@ public class LocationManagerService extends ILocationManager.Stub implements
             return mUserInfoHelper;
         }
 
+        @Override
+        public LocationSettings getLocationSettings() {
+            return mLocationSettings;
+        }
+
         @Override
         public AlarmHelper getAlarmHelper() {
             return mAlarmHelper;
diff --git a/services/core/java/com/android/server/location/LocationShellCommand.java b/services/core/java/com/android/server/location/LocationShellCommand.java
index 937849309f964..b65338d9691dd 100644
--- a/services/core/java/com/android/server/location/LocationShellCommand.java
+++ b/services/core/java/com/android/server/location/LocationShellCommand.java
@@ -17,6 +17,7 @@
 package com.android.server.location;
 
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.location.Criteria;
 import android.location.Location;
 import android.location.provider.ProviderProperties;
@@ -60,6 +61,14 @@ class LocationShellCommand extends BasicShellCommandHandler {
                 handleSetLocationEnabled();
                 return 0;
             }
+            case "is-adas-gnss-location-enabled": {
+                handleIsAdasGnssLocationEnabled();
+                return 0;
+            }
+            case "set-adas-gnss-location-enabled": {
+                handleSetAdasGnssLocationEnabled();
+                return 0;
+            }
             case "providers": {
                 String command = getNextArgRequired();
                 return parseProvidersCommand(command);
@@ -134,6 +143,52 @@ class LocationShellCommand extends BasicShellCommandHandler {
         mService.setLocationEnabledForUser(enabled, userId);
     }
 
+    private void handleIsAdasGnssLocationEnabled() {
+        if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
+            throw new IllegalStateException("command only recognized on automotive devices");
+        }
+
+        int userId = UserHandle.USER_CURRENT_OR_SELF;
+
+        do {
+            String option = getNextOption();
+            if (option == null) {
+                break;
+            }
+            if ("--user".equals(option)) {
+                userId = UserHandle.parseUserArg(getNextArgRequired());
+            } else {
+                throw new IllegalArgumentException("Unknown option: " + option);
+            }
+        } while (true);
+
+        getOutPrintWriter().println(mService.isAdasGnssLocationEnabledForUser(userId));
+    }
+
+    private void handleSetAdasGnssLocationEnabled() {
+        if (!mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
+            throw new IllegalStateException("command only recognized on automotive devices");
+        }
+
+        boolean enabled = Boolean.parseBoolean(getNextArgRequired());
+
+        int userId = UserHandle.USER_CURRENT_OR_SELF;
+
+        do {
+            String option = getNextOption();
+            if (option == null) {
+                break;
+            }
+            if ("--user".equals(option)) {
+                userId = UserHandle.parseUserArg(getNextArgRequired());
+            } else {
+                throw new IllegalArgumentException("Unknown option: " + option);
+            }
+        } while (true);
+
+        mService.setAdasGnssLocationEnabledForUser(enabled, userId);
+    }
+
     private void handleAddTestProvider() {
         String provider = getNextArgRequired();
 
@@ -297,6 +352,14 @@ class LocationShellCommand extends BasicShellCommandHandler {
         pw.println("  set-location-enabled true|false [--user <USER_ID>]");
         pw.println("    Sets the master location switch enabled state. If no user is specified,");
         pw.println("    the current user is assumed.");
+        if (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {
+            pw.println("  is-adas-gnss-location-enabled [--user <USER_ID>]");
+            pw.println("    Gets the ADAS GNSS location enabled state. If no user is specified,");
+            pw.println("    the current user is assumed.");
+            pw.println("  set-adas-gnss-location-enabled true|false [--user <USER_ID>]");
+            pw.println("    Sets the ADAS GNSS location enabled state. If no user is specified,");
+            pw.println("    the current user is assumed.");
+        }
         pw.println("  providers");
         pw.println("    The providers command is followed by a subcommand, as listed below:");
         pw.println();
@@ -323,9 +386,8 @@ class LocationShellCommand extends BasicShellCommandHandler {
         pw.println("      Common commands that may be supported by the gps provider, depending on");
         pw.println("      hardware and software configurations:");
         pw.println("        delete_aiding_data - requests deletion of any predictive aiding data");
-        pw.println("        force_time_injection - requests NTP time injection to chipset");
-        pw.println("        force_psds_injection - "
-                + "requests predictive aiding data injection to chipset");
-        pw.println("        request_power_stats - requests GNSS power stats update from chipset");
+        pw.println("        force_time_injection - requests NTP time injection");
+        pw.println("        force_psds_injection - requests predictive aiding data injection");
+        pw.println("        request_power_stats - requests GNSS power stats update");
     }
 }
diff --git a/services/core/java/com/android/server/location/eventlog/LocationEventLog.java b/services/core/java/com/android/server/location/eventlog/LocationEventLog.java
index e6d25ece93efc..db2a43f7a00da 100644
--- a/services/core/java/com/android/server/location/eventlog/LocationEventLog.java
+++ b/services/core/java/com/android/server/location/eventlog/LocationEventLog.java
@@ -55,19 +55,20 @@ public class LocationEventLog extends LocalEventLog {
 
     private static final int EVENT_USER_SWITCHED = 1;
     private static final int EVENT_LOCATION_ENABLED = 2;
-    private static final int EVENT_PROVIDER_ENABLED = 3;
-    private static final int EVENT_PROVIDER_MOCKED = 4;
-    private static final int EVENT_PROVIDER_CLIENT_REGISTER = 5;
-    private static final int EVENT_PROVIDER_CLIENT_UNREGISTER = 6;
-    private static final int EVENT_PROVIDER_CLIENT_FOREGROUND = 7;
-    private static final int EVENT_PROVIDER_CLIENT_BACKGROUND = 8;
-    private static final int EVENT_PROVIDER_CLIENT_PERMITTED = 9;
-    private static final int EVENT_PROVIDER_CLIENT_UNPERMITTED = 10;
-    private static final int EVENT_PROVIDER_UPDATE_REQUEST = 11;
-    private static final int EVENT_PROVIDER_RECEIVE_LOCATION = 12;
-    private static final int EVENT_PROVIDER_DELIVER_LOCATION = 13;
-    private static final int EVENT_PROVIDER_STATIONARY_THROTTLED = 14;
-    private static final int EVENT_LOCATION_POWER_SAVE_MODE_CHANGE = 15;
+    private static final int EVENT_ADAS_LOCATION_ENABLED = 3;
+    private static final int EVENT_PROVIDER_ENABLED = 4;
+    private static final int EVENT_PROVIDER_MOCKED = 5;
+    private static final int EVENT_PROVIDER_CLIENT_REGISTER = 6;
+    private static final int EVENT_PROVIDER_CLIENT_UNREGISTER = 7;
+    private static final int EVENT_PROVIDER_CLIENT_FOREGROUND = 8;
+    private static final int EVENT_PROVIDER_CLIENT_BACKGROUND = 9;
+    private static final int EVENT_PROVIDER_CLIENT_PERMITTED = 10;
+    private static final int EVENT_PROVIDER_CLIENT_UNPERMITTED = 11;
+    private static final int EVENT_PROVIDER_UPDATE_REQUEST = 12;
+    private static final int EVENT_PROVIDER_RECEIVE_LOCATION = 13;
+    private static final int EVENT_PROVIDER_DELIVER_LOCATION = 14;
+    private static final int EVENT_PROVIDER_STATIONARY_THROTTLED = 15;
+    private static final int EVENT_LOCATION_POWER_SAVE_MODE_CHANGE = 16;
 
     @GuardedBy("mAggregateStats")
     private final ArrayMap<String, ArrayMap<CallerIdentity, AggregateStats>> mAggregateStats;
@@ -116,6 +117,11 @@ public class LocationEventLog extends LocalEventLog {
         addLogEvent(EVENT_LOCATION_ENABLED, userId, enabled);
     }
 
+    /** Logs a location enabled/disabled event. */
+    public void logAdasLocationEnabled(int userId, boolean enabled) {
+        addLogEvent(EVENT_ADAS_LOCATION_ENABLED, userId, enabled);
+    }
+
     /** Logs a location provider enabled/disabled event. */
     public void logProviderEnabled(String provider, int userId, boolean enabled) {
         addLogEvent(EVENT_PROVIDER_ENABLED, provider, userId, enabled);
@@ -219,6 +225,9 @@ public class LocationEventLog extends LocalEventLog {
                 return new UserSwitchedEvent(timeDelta, (Integer) args[0], (Integer) args[1]);
             case EVENT_LOCATION_ENABLED:
                 return new LocationEnabledEvent(timeDelta, (Integer) args[0], (Boolean) args[1]);
+            case EVENT_ADAS_LOCATION_ENABLED:
+                return new LocationAdasEnabledEvent(timeDelta, (Integer) args[0],
+                        (Boolean) args[1]);
             case EVENT_PROVIDER_ENABLED:
                 return new ProviderEnabledEvent(timeDelta, (String) args[0], (Integer) args[1],
                         (Boolean) args[2]);
@@ -517,6 +526,23 @@ public class LocationEventLog extends LocalEventLog {
         }
     }
 
+    private static final class LocationAdasEnabledEvent extends LogEvent {
+
+        private final int mUserId;
+        private final boolean mEnabled;
+
+        LocationAdasEnabledEvent(long timeDelta, int userId, boolean enabled) {
+            super(timeDelta);
+            mUserId = userId;
+            mEnabled = enabled;
+        }
+
+        @Override
+        public String getLogString() {
+            return "adas location [u" + mUserId + "] " + (mEnabled ? "enabled" : "disabled");
+        }
+    }
+
     /**
      * Aggregate statistics for a single package under a single provider.
      */
diff --git a/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java b/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
index 1cccf08b0367a..f3dcfbbf2c0a9 100644
--- a/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
+++ b/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
@@ -771,10 +771,10 @@ public class GnssLocationProvider extends AbstractLocationProvider implements
         boolean enabled = mContext.getSystemService(LocationManager.class)
                 .isLocationEnabledForUser(UserHandle.CURRENT);
 
-        // .. but enable anyway, if there's an active settings-ignored request (e.g. ELS)
+        // .. but enable anyway, if there's an active bypass request (e.g. ELS or ADAS)
         enabled |= (mProviderRequest != null
                 && mProviderRequest.isActive()
-                && mProviderRequest.isLocationSettingsIgnored());
+                && mProviderRequest.isBypass());
 
         // ... and, finally, disable anyway, if device is being shut down
         enabled &= !mShutdown;
diff --git a/services/core/java/com/android/server/location/injector/Injector.java b/services/core/java/com/android/server/location/injector/Injector.java
index b0351184ffe50..173fd13c11a18 100644
--- a/services/core/java/com/android/server/location/injector/Injector.java
+++ b/services/core/java/com/android/server/location/injector/Injector.java
@@ -17,6 +17,7 @@
 package com.android.server.location.injector;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.location.settings.LocationSettings;
 
 /**
  * Injects various location dependencies so that they may be controlled by tests.
@@ -27,6 +28,9 @@ public interface Injector {
     /** Returns a UserInfoHelper. */
     UserInfoHelper getUserInfoHelper();
 
+    /** Returns a LocationSettings. */
+    LocationSettings getLocationSettings();
+
     /** Returns an AlarmHelper. */
     AlarmHelper getAlarmHelper();
 
diff --git a/services/core/java/com/android/server/location/injector/SystemSettingsHelper.java b/services/core/java/com/android/server/location/injector/SystemSettingsHelper.java
index c315da476d999..3e8da7d7478ab 100644
--- a/services/core/java/com/android/server/location/injector/SystemSettingsHelper.java
+++ b/services/core/java/com/android/server/location/injector/SystemSettingsHelper.java
@@ -670,8 +670,6 @@ public class SystemSettingsHelper extends SettingsHelper {
         }
     }
 
-
-
     private static class PackageTagsListSetting extends DeviceConfigSetting {
 
         private final Supplier<ArrayMap<String, ArraySet<String>>> mBaseValuesSupplier;
diff --git a/services/core/java/com/android/server/location/provider/LocationProviderManager.java b/services/core/java/com/android/server/location/provider/LocationProviderManager.java
index 8d335b83d99c1..43886f7cb87b9 100644
--- a/services/core/java/com/android/server/location/provider/LocationProviderManager.java
+++ b/services/core/java/com/android/server/location/provider/LocationProviderManager.java
@@ -113,6 +113,8 @@ import com.android.server.location.injector.UserInfoHelper;
 import com.android.server.location.injector.UserInfoHelper.UserListener;
 import com.android.server.location.listeners.ListenerMultiplexer;
 import com.android.server.location.listeners.RemoteListenerRegistration;
+import com.android.server.location.settings.LocationSettings;
+import com.android.server.location.settings.LocationUserSettings;
 
 import java.io.FileDescriptor;
 import java.lang.annotation.Retention;
@@ -548,6 +550,19 @@ public class LocationProviderManager extends
             return false;
         }
 
+        @GuardedBy("mLock")
+        final boolean onAdasGnssLocationEnabledChanged(int userId) {
+            if (Build.IS_DEBUGGABLE) {
+                Preconditions.checkState(Thread.holdsLock(mLock));
+            }
+
+            if (getIdentity().getUserId() == userId) {
+                return onProviderLocationRequestChanged();
+            }
+
+            return false;
+        }
+
         @GuardedBy("mLock")
         final boolean onForegroundChanged(int uid, boolean foreground) {
             if (Build.IS_DEBUGGABLE) {
@@ -592,8 +607,8 @@ public class LocationProviderManager extends
             onHighPowerUsageChanged();
             updateService();
 
-            // if location settings ignored has changed then the active state may have changed
-            return oldRequest.isLocationSettingsIgnored() != newRequest.isLocationSettingsIgnored();
+            // if bypass state has changed then the active state may have changed
+            return oldRequest.isBypass() != newRequest.isBypass();
         }
 
         private LocationRequest calculateProviderLocationRequest() {
@@ -616,9 +631,24 @@ public class LocationProviderManager extends
                 if (!mSettingsHelper.getIgnoreSettingsAllowlist().contains(
                         getIdentity().getPackageName(), getIdentity().getAttributionTag())
                         && !mLocationManagerInternal.isProvider(null, getIdentity())) {
-                    builder.setLocationSettingsIgnored(false);
                     locationSettingsIgnored = false;
                 }
+
+                builder.setLocationSettingsIgnored(locationSettingsIgnored);
+            }
+
+            boolean adasGnssBypass = baseRequest.isAdasGnssBypass();
+            if (adasGnssBypass) {
+                // if we are not currently allowed use adas gnss bypass, disable it
+                if (!GPS_PROVIDER.equals(mName)) {
+                    Log.e(TAG, "adas gnss bypass request received in non-gps provider");
+                    adasGnssBypass = false;
+                } else if (!mLocationSettings.getUserSettings(
+                        getIdentity().getUserId()).isAdasGnssLocationEnabled()) {
+                    adasGnssBypass = false;
+                }
+
+                builder.setAdasGnssBypass(adasGnssBypass);
             }
 
             if (!locationSettingsIgnored && !isThrottlingExempt()) {
@@ -769,7 +799,7 @@ public class LocationProviderManager extends
                     Location lastLocation = getLastLocationUnsafe(
                             getIdentity().getUserId(),
                             getPermissionLevel(),
-                            getRequest().isLocationSettingsIgnored(),
+                            getRequest().isBypass(),
                             maxLocationAgeMs);
                     if (lastLocation != null) {
                         executeOperation(acceptLocationChange(LocationResult.wrap(lastLocation)));
@@ -1114,7 +1144,7 @@ public class LocationProviderManager extends
             Location lastLocation = getLastLocationUnsafe(
                     getIdentity().getUserId(),
                     getPermissionLevel(),
-                    getRequest().isLocationSettingsIgnored(),
+                    getRequest().isBypass(),
                     MAX_CURRENT_LOCATION_AGE_MS);
             if (lastLocation != null) {
                 executeOperation(acceptLocationChange(LocationResult.wrap(lastLocation)));
@@ -1267,6 +1297,7 @@ public class LocationProviderManager extends
     private final CopyOnWriteArrayList<IProviderRequestListener> mProviderRequestListeners;
 
     protected final LocationManagerInternal mLocationManagerInternal;
+    protected final LocationSettings mLocationSettings;
     protected final SettingsHelper mSettingsHelper;
     protected final UserInfoHelper mUserHelper;
     protected final AlarmHelper mAlarmHelper;
@@ -1280,6 +1311,8 @@ public class LocationProviderManager extends
     protected final LocationFudger mLocationFudger;
 
     private final UserListener mUserChangedListener = this::onUserChanged;
+    private final LocationSettings.LocationUserSettingsListener mLocationUserSettingsListener =
+            this::onLocationUserSettingsChanged;
     private final UserSettingChangedListener mLocationEnabledChangedListener =
             this::onLocationEnabledChanged;
     private final GlobalSettingChangedListener mBackgroundThrottlePackageWhitelistChangedListener =
@@ -1332,6 +1365,7 @@ public class LocationProviderManager extends
 
         mLocationManagerInternal = Objects.requireNonNull(
                 LocalServices.getService(LocationManagerInternal.class));
+        mLocationSettings = injector.getLocationSettings();
         mSettingsHelper = injector.getSettingsHelper();
         mUserHelper = injector.getUserInfoHelper();
         mAlarmHelper = injector.getAlarmHelper();
@@ -1362,6 +1396,7 @@ public class LocationProviderManager extends
             mStateChangedListener = listener;
 
             mUserHelper.addListener(mUserChangedListener);
+            mLocationSettings.registerLocationUserSettingsListener(mLocationUserSettingsListener);
             mSettingsHelper.addOnLocationEnabledChangedListener(mLocationEnabledChangedListener);
 
             final long identity = Binder.clearCallingIdentity();
@@ -1389,6 +1424,7 @@ public class LocationProviderManager extends
             }
 
             mUserHelper.removeListener(mUserChangedListener);
+            mLocationSettings.unregisterLocationUserSettingsListener(mLocationUserSettingsListener);
             mSettingsHelper.removeOnLocationEnabledChangedListener(mLocationEnabledChangedListener);
 
             // if external entities are registering listeners it's their responsibility to
@@ -1550,7 +1586,7 @@ public class LocationProviderManager extends
 
     public @Nullable Location getLastLocation(LastLocationRequest request,
             CallerIdentity identity, @PermissionLevel int permissionLevel) {
-        if (!isActive(request.isLocationSettingsIgnored(), identity)) {
+        if (!isActive(request.isBypass(), identity)) {
             return null;
         }
 
@@ -1564,7 +1600,7 @@ public class LocationProviderManager extends
                 getLastLocationUnsafe(
                         identity.getUserId(),
                         permissionLevel,
-                        request.isLocationSettingsIgnored(),
+                        request.isBypass(),
                         Long.MAX_VALUE),
                 permissionLevel);
 
@@ -1584,7 +1620,7 @@ public class LocationProviderManager extends
      * location if necessary.
      */
     public @Nullable Location getLastLocationUnsafe(int userId,
-            @PermissionLevel int permissionLevel, boolean ignoreLocationSettings,
+            @PermissionLevel int permissionLevel, boolean isBypass,
             long maximumAgeMs) {
         if (userId == UserHandle.USER_ALL) {
             // find the most recent location across all users
@@ -1592,7 +1628,7 @@ public class LocationProviderManager extends
             final int[] runningUserIds = mUserHelper.getRunningUserIds();
             for (int i = 0; i < runningUserIds.length; i++) {
                 Location next = getLastLocationUnsafe(runningUserIds[i], permissionLevel,
-                        ignoreLocationSettings, maximumAgeMs);
+                        isBypass, maximumAgeMs);
                 if (lastLocation == null || (next != null && next.getElapsedRealtimeNanos()
                         > lastLocation.getElapsedRealtimeNanos())) {
                     lastLocation = next;
@@ -1601,7 +1637,7 @@ public class LocationProviderManager extends
             return lastLocation;
         } else if (userId == UserHandle.USER_CURRENT) {
             return getLastLocationUnsafe(mUserHelper.getCurrentUserId(), permissionLevel,
-                    ignoreLocationSettings, maximumAgeMs);
+                    isBypass, maximumAgeMs);
         }
 
         Preconditions.checkArgument(userId >= 0);
@@ -1613,7 +1649,7 @@ public class LocationProviderManager extends
             if (lastLocation == null) {
                 location = null;
             } else {
-                location = lastLocation.get(permissionLevel, ignoreLocationSettings);
+                location = lastLocation.get(permissionLevel, isBypass);
             }
         }
 
@@ -1925,7 +1961,7 @@ public class LocationProviderManager extends
         // provider, under the assumption that once we send the request off, the provider will
         // immediately attempt to deliver a new location satisfying that request.
         long delayMs;
-        if (!oldRequest.isLocationSettingsIgnored() && newRequest.isLocationSettingsIgnored()) {
+        if (!oldRequest.isBypass() && newRequest.isBypass()) {
             delayMs = 0;
         } else if (newRequest.getIntervalMillis() > oldRequest.getIntervalMillis()) {
             // if the interval has increased, tell the provider immediately, so it can save power
@@ -2002,12 +2038,12 @@ public class LocationProviderManager extends
             return false;
         }
 
-        boolean locationSettingsIgnored = registration.getRequest().isLocationSettingsIgnored();
-        if (!isActive(locationSettingsIgnored, registration.getIdentity())) {
+        boolean isBypass = registration.getRequest().isBypass();
+        if (!isActive(isBypass, registration.getIdentity())) {
             return false;
         }
 
-        if (!locationSettingsIgnored) {
+        if (!isBypass) {
             switch (mLocationPowerSaveModeHelper.getLocationPowerSaveMode()) {
                 case LOCATION_MODE_FOREGROUND_ONLY:
                     if (!registration.isForeground()) {
@@ -2036,15 +2072,15 @@ public class LocationProviderManager extends
         return true;
     }
 
-    private boolean isActive(boolean locationSettingsIgnored, CallerIdentity identity) {
+    private boolean isActive(boolean isBypass, CallerIdentity identity) {
         if (identity.isSystemServer()) {
-            if (!locationSettingsIgnored) {
+            if (!isBypass) {
                 if (!isEnabled(mUserHelper.getCurrentUserId())) {
                     return false;
                 }
             }
         } else {
-            if (!locationSettingsIgnored) {
+            if (!isBypass) {
                 if (!isEnabled(identity.getUserId())) {
                     return false;
                 }
@@ -2071,6 +2107,7 @@ public class LocationProviderManager extends
         long intervalMs = ProviderRequest.INTERVAL_DISABLED;
         int quality = LocationRequest.QUALITY_LOW_POWER;
         long maxUpdateDelayMs = Long.MAX_VALUE;
+        boolean adasGnssBypass = false;
         boolean locationSettingsIgnored = false;
         boolean lowPower = true;
 
@@ -2086,6 +2123,7 @@ public class LocationProviderManager extends
             intervalMs = min(request.getIntervalMillis(), intervalMs);
             quality = min(request.getQuality(), quality);
             maxUpdateDelayMs = min(request.getMaxUpdateDelayMillis(), maxUpdateDelayMs);
+            adasGnssBypass |= request.isAdasGnssBypass();
             locationSettingsIgnored |= request.isLocationSettingsIgnored();
             lowPower &= request.isLowPower();
         }
@@ -2123,6 +2161,7 @@ public class LocationProviderManager extends
                 .setIntervalMillis(intervalMs)
                 .setQuality(quality)
                 .setMaxUpdateDelayMillis(maxUpdateDelayMs)
+                .setAdasGnssBypass(adasGnssBypass)
                 .setLocationSettingsIgnored(locationSettingsIgnored)
                 .setLowPower(lowPower)
                 .setWorkSource(workSource)
@@ -2191,6 +2230,16 @@ public class LocationProviderManager extends
         }
     }
 
+    private void onLocationUserSettingsChanged(int userId, LocationUserSettings oldSettings,
+            LocationUserSettings newSettings) {
+        if (oldSettings.isAdasGnssLocationEnabled() != newSettings.isAdasGnssLocationEnabled()) {
+            synchronized (mLock) {
+                updateRegistrations(
+                        registration -> registration.onAdasGnssLocationEnabledChanged(userId));
+            }
+        }
+    }
+
     private void onLocationEnabledChanged(int userId) {
         synchronized (mLock) {
             if (mState == STATE_STOPPED) {
@@ -2560,16 +2609,16 @@ public class LocationProviderManager extends
         }
 
         public @Nullable Location get(@PermissionLevel int permissionLevel,
-                boolean ignoreLocationSettings) {
+                boolean isBypass) {
             switch (permissionLevel) {
                 case PERMISSION_FINE:
-                    if (ignoreLocationSettings) {
+                    if (isBypass) {
                         return mFineBypassLocation;
                     } else {
                         return mFineLocation;
                     }
                 case PERMISSION_COARSE:
-                    if (ignoreLocationSettings) {
+                    if (isBypass) {
                         return mCoarseBypassLocation;
                     } else {
                         return mCoarseLocation;
diff --git a/services/core/java/com/android/server/location/settings/LocationSettings.java b/services/core/java/com/android/server/location/settings/LocationSettings.java
new file mode 100644
index 0000000000000..d521538939704
--- /dev/null
+++ b/services/core/java/com/android/server/location/settings/LocationSettings.java
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2021 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.location.settings;
+
+import static android.content.pm.PackageManager.FEATURE_AUTOMOTIVE;
+
+import android.content.Context;
+import android.os.Environment;
+import android.util.SparseArray;
+
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.FgThread;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.File;
+import java.io.IOException;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.function.Function;
+
+/**
+ * Accessor for location user settings. Ensure there is only ever one instance as multiple instances
+ * don't play nicely with each other.
+ */
+public class LocationSettings {
+
+    /** Listens for changes to location user settings. */
+    public interface LocationUserSettingsListener {
+        /** Invoked when location user settings have changed for the given user. */
+        void onLocationUserSettingsChanged(int userId, LocationUserSettings oldSettings,
+                LocationUserSettings newSettings);
+    }
+
+    private static final String LOCATION_DIRNAME = "location";
+    private static final String LOCATION_SETTINGS_FILENAME = "settings";
+
+    final Context mContext;
+
+    @GuardedBy("mUserSettings")
+    private final SparseArray<LocationUserSettingsStore> mUserSettings;
+    private final CopyOnWriteArrayList<LocationUserSettingsListener> mUserSettingsListeners;
+
+    public LocationSettings(Context context) {
+        mContext = context;
+        mUserSettings = new SparseArray<>(1);
+        mUserSettingsListeners = new CopyOnWriteArrayList<>();
+    }
+
+    /** Registers a listener for changes to location user settings. */
+    public final void registerLocationUserSettingsListener(LocationUserSettingsListener listener) {
+        mUserSettingsListeners.add(listener);
+    }
+
+    /** Unregisters a listener for changes to location user settings. */
+    public final void unregisterLocationUserSettingsListener(
+            LocationUserSettingsListener listener) {
+        mUserSettingsListeners.remove(listener);
+    }
+
+    protected File getUserSettingsDir(int userId) {
+        return Environment.getDataSystemDeDirectory(userId);
+    }
+
+    protected LocationUserSettingsStore createUserSettingsStore(int userId, File file) {
+        return new LocationUserSettingsStore(userId, file);
+    }
+
+    private LocationUserSettingsStore getUserSettingsStore(int userId) {
+        synchronized (mUserSettings) {
+            LocationUserSettingsStore settingsStore = mUserSettings.get(userId);
+            if (settingsStore == null) {
+                File file = new File(new File(getUserSettingsDir(userId), LOCATION_DIRNAME),
+                        LOCATION_SETTINGS_FILENAME);
+                settingsStore = createUserSettingsStore(userId, file);
+                mUserSettings.put(userId, settingsStore);
+            }
+            return settingsStore;
+        }
+    }
+
+    /** Retrieves the current state of location user settings. */
+    public final LocationUserSettings getUserSettings(int userId) {
+        return getUserSettingsStore(userId).get();
+    }
+
+    /** Updates the current state of location user settings for the given user. */
+    public final void updateUserSettings(int userId,
+            Function<LocationUserSettings, LocationUserSettings> updater) {
+        getUserSettingsStore(userId).update(updater);
+    }
+
+    @VisibleForTesting
+    final void flushFiles() throws InterruptedException {
+        synchronized (mUserSettings) {
+            int size = mUserSettings.size();
+            for (int i = 0; i < size; i++) {
+                mUserSettings.valueAt(i).flushFile();
+            }
+        }
+    }
+
+    @VisibleForTesting
+    final void deleteFiles() throws InterruptedException {
+        synchronized (mUserSettings) {
+            int size = mUserSettings.size();
+            for (int i = 0; i < size; i++) {
+                mUserSettings.valueAt(i).deleteFile();
+            }
+        }
+    }
+
+    protected final void fireListeners(int userId, LocationUserSettings oldSettings,
+            LocationUserSettings newSettings) {
+        for (LocationUserSettingsListener listener : mUserSettingsListeners) {
+            listener.onLocationUserSettingsChanged(userId, oldSettings, newSettings);
+        }
+    }
+
+    class LocationUserSettingsStore extends SettingsStore<LocationUserSettings> {
+
+        protected final int mUserId;
+
+        LocationUserSettingsStore(int userId, File file) {
+            super(file);
+            mUserId = userId;
+        }
+
+        @Override
+        protected LocationUserSettings read(int version, DataInput in) throws IOException {
+            return filterSettings(LocationUserSettings.read(mContext.getResources(), version, in));
+        }
+
+        @Override
+        protected void write(DataOutput out, LocationUserSettings settings) throws IOException {
+            settings.write(out);
+        }
+
+        @Override
+        public void update(Function<LocationUserSettings, LocationUserSettings> updater) {
+            super.update(settings -> filterSettings(updater.apply(settings)));
+        }
+
+        @Override
+        protected void onChange(LocationUserSettings oldSettings,
+                LocationUserSettings newSettings) {
+            FgThread.getExecutor().execute(() -> fireListeners(mUserId, oldSettings, newSettings));
+        }
+
+        private LocationUserSettings filterSettings(LocationUserSettings settings) {
+            if (settings.isAdasGnssLocationEnabled()
+                    && !mContext.getPackageManager().hasSystemFeature(FEATURE_AUTOMOTIVE)) {
+                // prevent non-automotive devices from ever enabling this
+                settings = settings.withAdasGnssLocationEnabled(false);
+            }
+            return settings;
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/location/settings/LocationUserSettings.java b/services/core/java/com/android/server/location/settings/LocationUserSettings.java
new file mode 100644
index 0000000000000..283255ef4b225
--- /dev/null
+++ b/services/core/java/com/android/server/location/settings/LocationUserSettings.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2021 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.location.settings;
+
+import android.content.res.Resources;
+
+import com.android.internal.R;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.Objects;
+
+/** Holds the state of location user settings. */
+public final class LocationUserSettings implements SettingsStore.VersionedSettings {
+
+    // remember to bump this version code and add the appropriate upgrade logic whenever the format
+    // is changed.
+    private static final int VERSION = 1;
+
+    private final boolean mAdasGnssLocationEnabled;
+
+    private LocationUserSettings(boolean adasGnssLocationEnabled) {
+        mAdasGnssLocationEnabled = adasGnssLocationEnabled;
+    }
+
+    @Override
+    public int getVersion() {
+        return VERSION;
+    }
+
+    public boolean isAdasGnssLocationEnabled() {
+        return mAdasGnssLocationEnabled;
+    }
+
+    /** Returns an instance with ADAS GNSS location enabled state set as given. */
+    public LocationUserSettings withAdasGnssLocationEnabled(boolean adasEnabled) {
+        if (adasEnabled == mAdasGnssLocationEnabled) {
+            return this;
+        }
+
+        return new LocationUserSettings(adasEnabled);
+    }
+
+    void write(DataOutput out) throws IOException {
+        out.writeBoolean(mAdasGnssLocationEnabled);
+    }
+
+    static LocationUserSettings read(Resources resources, int version, DataInput in)
+            throws IOException {
+        boolean adasGnssLocationEnabled;
+
+        // upgrade code goes here. remember to bump the version field when changing the format
+        switch (version) {
+            default:
+                // set all fields to defaults
+                adasGnssLocationEnabled = resources.getBoolean(
+                        R.bool.config_defaultAdasGnssLocationEnabled);
+                break;
+            case 1:
+                adasGnssLocationEnabled = in.readBoolean();
+                // fall through
+        }
+
+        return new LocationUserSettings(adasGnssLocationEnabled);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (!(o instanceof LocationUserSettings)) {
+            return false;
+        }
+        LocationUserSettings that = (LocationUserSettings) o;
+        return mAdasGnssLocationEnabled == that.mAdasGnssLocationEnabled;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(mAdasGnssLocationEnabled);
+    }
+}
diff --git a/services/core/java/com/android/server/location/settings/SettingsStore.java b/services/core/java/com/android/server/location/settings/SettingsStore.java
new file mode 100644
index 0000000000000..01338a3129da2
--- /dev/null
+++ b/services/core/java/com/android/server/location/settings/SettingsStore.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2021 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.location.settings;
+
+import static com.android.server.location.LocationManagerService.TAG;
+import static com.android.server.location.settings.SettingsStore.VersionedSettings.VERSION_DOES_NOT_EXIST;
+
+import android.util.AtomicFile;
+import android.util.Log;
+
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.os.BackgroundThread;
+import com.android.internal.util.Preconditions;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInput;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.Objects;
+import java.util.concurrent.CountDownLatch;
+import java.util.function.Function;
+
+/** Base class for read/write/versioning functionality for storing persistent settings to a file. */
+abstract class SettingsStore<T extends SettingsStore.VersionedSettings> {
+
+    interface VersionedSettings {
+        /** Represents that the settings do not exist. */
+        int VERSION_DOES_NOT_EXIST = Integer.MAX_VALUE;
+
+        /** Must always return a version number less than {@link #VERSION_DOES_NOT_EXIST}. */
+        int getVersion();
+    }
+
+    private final AtomicFile mFile;
+
+    @GuardedBy("this")
+    private boolean mInitialized;
+    @GuardedBy("this")
+    private T mCache;
+
+    protected SettingsStore(File file) {
+        mFile = new AtomicFile(file);
+    }
+
+    /**
+     * Must be implemented to read in a settings instance, and upgrade to the appropriate version
+     * where necessary. If the provided version is {@link VersionedSettings#VERSION_DOES_NOT_EXIST}
+     * then the DataInput will be empty, and the method should return a settings instance with all
+     * settings set to the default value.
+     */
+    protected abstract T read(int version, DataInput in) throws IOException;
+
+    /**
+     * Must be implemented to write the given settings to the given DataOutput.
+     */
+    protected abstract void write(DataOutput out, T settings) throws IOException;
+
+    /**
+     * Invoked when settings change, and while holding the internal lock. If used to invoke
+     * listeners, ensure they are not invoked while holding the lock (ie, asynchronously).
+     */
+    protected abstract void onChange(T oldSettings, T newSettings);
+
+    public final synchronized void initializeCache() {
+        if (!mInitialized) {
+            if (mFile.exists()) {
+                try (DataInputStream is = new DataInputStream(mFile.openRead())) {
+                    mCache = read(is.readInt(), is);
+                    Preconditions.checkState(mCache.getVersion() < VERSION_DOES_NOT_EXIST);
+                } catch (IOException e) {
+                    Log.e(TAG, "error reading location settings (" + mFile
+                            + "), falling back to defaults", e);
+                }
+            }
+
+            if (mCache == null) {
+                try {
+                    mCache = read(VERSION_DOES_NOT_EXIST,
+                            new DataInputStream(new ByteArrayInputStream(new byte[0])));
+                    Preconditions.checkState(mCache.getVersion() < VERSION_DOES_NOT_EXIST);
+                } catch (IOException e) {
+                    throw new AssertionError(e);
+                }
+            }
+
+            mInitialized = true;
+        }
+    }
+
+    public final synchronized T get() {
+        initializeCache();
+        return mCache;
+    }
+
+    public synchronized void update(Function<T, T> updater) {
+        initializeCache();
+
+        T oldSettings = mCache;
+        T newSettings = Objects.requireNonNull(updater.apply(oldSettings));
+        if (oldSettings.equals(newSettings)) {
+            return;
+        }
+
+        mCache = newSettings;
+        Preconditions.checkState(mCache.getVersion() < VERSION_DOES_NOT_EXIST);
+
+        writeLazily(newSettings);
+
+        onChange(oldSettings, newSettings);
+    }
+
+    @VisibleForTesting
+    synchronized void flushFile() throws InterruptedException {
+        CountDownLatch latch = new CountDownLatch(1);
+        BackgroundThread.getExecutor().execute(latch::countDown);
+        latch.await();
+    }
+
+    @VisibleForTesting
+    synchronized void deleteFile() throws InterruptedException {
+        CountDownLatch latch = new CountDownLatch(1);
+        BackgroundThread.getExecutor().execute(() -> {
+            mFile.delete();
+            latch.countDown();
+        });
+        latch.await();
+    }
+
+    private void writeLazily(T settings) {
+        BackgroundThread.getExecutor().execute(() -> {
+            FileOutputStream os = null;
+            try {
+                os = mFile.startWrite();
+                DataOutputStream out = new DataOutputStream(os);
+                out.writeInt(settings.getVersion());
+                write(out, settings);
+                mFile.finishWrite(os);
+            } catch (IOException e) {
+                mFile.failWrite(os);
+                Log.e(TAG, "failure serializing location settings", e);
+            } catch (Throwable e) {
+                mFile.failWrite(os);
+                throw e;
+            }
+        });
+    }
+}
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/gnss/GnssGeofenceProxyTest.java b/services/tests/mockingservicestests/src/com/android/server/location/gnss/GnssGeofenceProxyTest.java
index b480f24fb3710..5e219a25ed9a2 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/gnss/GnssGeofenceProxyTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/gnss/GnssGeofenceProxyTest.java
@@ -18,6 +18,7 @@ package com.android.server.location.gnss;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import android.content.Context;
 import android.platform.test.annotations.Presubmit;
 
 import androidx.test.filters.SmallTest;
@@ -49,6 +50,7 @@ public class GnssGeofenceProxyTest {
     private static final int NOTIFICATION_RESPONSIVENESS = 0;
     private static final int UNKNOWN_TIMER = 0;
 
+    private @Mock Context mContext;
     private @Mock GnssConfiguration mMockConfiguration;
     private @Mock GnssNative.GeofenceCallbacks mGeofenceCallbacks;
 
@@ -63,7 +65,7 @@ public class GnssGeofenceProxyTest {
         GnssNative.setGnssHalForTest(mFakeHal);
 
         GnssNative gnssNative = Objects.requireNonNull(
-                GnssNative.create(new TestInjector(), mMockConfiguration));
+                GnssNative.create(new TestInjector(mContext), mMockConfiguration));
         gnssNative.setGeofenceCallbacks(mGeofenceCallbacks);
         mTestProvider = new GnssGeofenceProxy(gnssNative);
         gnssNative.register();
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeAppOpsHelper.java b/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeAppOpsHelper.java
index 3d0378170c942..d728451d92b96 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeAppOpsHelper.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeAppOpsHelper.java
@@ -29,9 +29,10 @@ import java.util.HashMap;
 public class FakeAppOpsHelper extends AppOpsHelper {
 
     private static class AppOp {
-        private boolean mAllowed = true;
-        private boolean mStarted = false;
-        private int mNoteCount = 0;
+        AppOp() {}
+        boolean mAllowed = true;
+        boolean mStarted = false;
+        int mNoteCount = 0;
     }
 
     private final HashMap<String, SparseArray<AppOp>> mAppOps;
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeSettingsHelper.java b/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeSettingsHelper.java
index f1099f0e81842..cd70020f5c287 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeSettingsHelper.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/injector/FakeSettingsHelper.java
@@ -29,8 +29,8 @@ import java.util.Set;
 import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
- * Version of AppOpsHelper for testing. Settings are initialized to reasonable defaults (location is
- * enabled by default).
+ * Version of SettingsHelper for testing. Settings are initialized to reasonable defaults (location
+ * is enabled by default).
  */
 public class FakeSettingsHelper extends SettingsHelper {
 
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/injector/TestInjector.java b/services/tests/mockingservicestests/src/com/android/server/location/injector/TestInjector.java
index ae70dadba0413..bd24cfd78a2cf 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/injector/TestInjector.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/injector/TestInjector.java
@@ -16,9 +16,14 @@
 
 package com.android.server.location.injector;
 
+import android.content.Context;
+
+import com.android.server.location.settings.FakeLocationSettings;
+
 public class TestInjector implements Injector {
 
     private final FakeUserInfoHelper mUserInfoHelper;
+    private final FakeLocationSettings mLocationSettings;
     private final FakeAlarmHelper mAlarmHelper;
     private final FakeAppOpsHelper mAppOpsHelper;
     private final FakeLocationPermissionsHelper mLocationPermissionsHelper;
@@ -32,8 +37,9 @@ public class TestInjector implements Injector {
     private final FakeEmergencyHelper mEmergencyHelper;
     private final LocationUsageLogger mLocationUsageLogger;
 
-    public TestInjector() {
+    public TestInjector(Context context) {
         mUserInfoHelper = new FakeUserInfoHelper();
+        mLocationSettings = new FakeLocationSettings(context);
         mAlarmHelper = new FakeAlarmHelper();
         mAppOpsHelper = new FakeAppOpsHelper();
         mLocationPermissionsHelper = new FakeLocationPermissionsHelper(mAppOpsHelper);
@@ -53,6 +59,11 @@ public class TestInjector implements Injector {
         return mUserInfoHelper;
     }
 
+    @Override
+    public FakeLocationSettings getLocationSettings() {
+        return mLocationSettings;
+    }
+
     @Override
     public FakeAlarmHelper getAlarmHelper() {
         return mAlarmHelper;
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/provider/LocationProviderManagerTest.java b/services/tests/mockingservicestests/src/com/android/server/location/provider/LocationProviderManagerTest.java
index 6bc3b60410707..f703e2e591814 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/provider/LocationProviderManagerTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/provider/LocationProviderManagerTest.java
@@ -19,6 +19,8 @@ package com.android.server.location.provider;
 import static android.app.AppOpsManager.OP_FINE_LOCATION;
 import static android.app.AppOpsManager.OP_MONITOR_HIGH_POWER_LOCATION;
 import static android.app.AppOpsManager.OP_MONITOR_LOCATION;
+import static android.content.pm.PackageManager.FEATURE_AUTOMOTIVE;
+import static android.location.LocationManager.GPS_PROVIDER;
 import static android.location.LocationRequest.PASSIVE_INTERVAL;
 import static android.location.provider.ProviderProperties.POWER_USAGE_HIGH;
 import static android.os.PowerManager.LOCATION_MODE_THROTTLE_REQUESTS_WHEN_SCREEN_OFF;
@@ -56,6 +58,8 @@ import static org.mockito.MockitoAnnotations.initMocks;
 import static org.testng.Assert.assertThrows;
 
 import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
 import android.location.ILocationCallback;
 import android.location.ILocationListener;
 import android.location.LastLocationRequest;
@@ -82,6 +86,7 @@ import android.util.Log;
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import com.android.internal.R;
 import com.android.server.FgThread;
 import com.android.server.LocalServices;
 import com.android.server.location.injector.FakeUserInfoHelper;
@@ -139,6 +144,10 @@ public class LocationProviderManagerTest {
     @Mock
     private Context mContext;
     @Mock
+    private Resources mResources;
+    @Mock
+    private PackageManager mPackageManager;
+    @Mock
     private PowerManager mPowerManager;
     @Mock
     private PowerManager.WakeLock mWakeLock;
@@ -161,20 +170,28 @@ public class LocationProviderManagerTest {
         LocalServices.addService(LocationManagerInternal.class, mInternal);
 
         doReturn("android").when(mContext).getPackageName();
+        doReturn(mResources).when(mContext).getResources();
+        doReturn(mPackageManager).when(mContext).getPackageManager();
         doReturn(mPowerManager).when(mContext).getSystemService(PowerManager.class);
         doReturn(mWakeLock).when(mPowerManager).newWakeLock(anyInt(), anyString());
 
-        mInjector = new TestInjector();
+        mInjector = new TestInjector(mContext);
         mInjector.getUserInfoHelper().startUser(OTHER_USER);
 
         mPassive = new PassiveLocationProviderManager(mContext, mInjector);
         mPassive.startManager(null);
         mPassive.setRealProvider(new PassiveLocationProvider(mContext));
 
+        createManager(NAME);
+    }
+
+    private void createManager(String name) {
+        mStateChangedListener = mock(LocationProviderManager.StateChangedListener.class);
+
         mProvider = new TestProvider(PROPERTIES, PROVIDER_IDENTITY);
         mProvider.setProviderAllowed(true);
 
-        mManager = new LocationProviderManager(mContext, mInjector, NAME, mPassive);
+        mManager = new LocationProviderManager(mContext, mInjector, name, mPassive);
         mManager.startManager(mStateChangedListener);
         mManager.setRealProvider(mProvider);
     }
@@ -1016,6 +1033,95 @@ public class LocationProviderManagerTest {
         assertThat(mProvider.getRequest().getIntervalMillis()).isEqualTo(5);
     }
 
+    @Test
+    public void testProviderRequest_AdasGnssBypass() {
+        doReturn(true).when(mPackageManager).hasSystemFeature(FEATURE_AUTOMOTIVE);
+        doReturn(true).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+
+        createManager(GPS_PROVIDER);
+
+        ILocationListener listener1 = createMockLocationListener();
+        LocationRequest request1 = new LocationRequest.Builder(5)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request1, IDENTITY, PERMISSION_FINE, listener1);
+
+        assertThat(mProvider.getRequest().isActive()).isTrue();
+        assertThat(mProvider.getRequest().getIntervalMillis()).isEqualTo(5);
+        assertThat(mProvider.getRequest().isAdasGnssBypass()).isFalse();
+
+        ILocationListener listener2 = createMockLocationListener();
+        LocationRequest request2 = new LocationRequest.Builder(1)
+                .setAdasGnssBypass(true)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request2, IDENTITY, PERMISSION_FINE, listener2);
+
+        assertThat(mProvider.getRequest().isActive()).isTrue();
+        assertThat(mProvider.getRequest().getIntervalMillis()).isEqualTo(1);
+        assertThat(mProvider.getRequest().isAdasGnssBypass()).isTrue();
+    }
+
+    @Test
+    public void testProviderRequest_AdasGnssBypass_ProviderDisabled() {
+        doReturn(true).when(mPackageManager).hasSystemFeature(FEATURE_AUTOMOTIVE);
+        doReturn(true).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+
+        createManager(GPS_PROVIDER);
+
+        ILocationListener listener1 = createMockLocationListener();
+        LocationRequest request1 = new LocationRequest.Builder(1)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request1, IDENTITY, PERMISSION_FINE, listener1);
+
+        ILocationListener listener2 = createMockLocationListener();
+        LocationRequest request2 = new LocationRequest.Builder(5)
+                .setAdasGnssBypass(true)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request2, IDENTITY, PERMISSION_FINE, listener2);
+
+        mInjector.getSettingsHelper().setLocationEnabled(false, IDENTITY.getUserId());
+
+        assertThat(mProvider.getRequest().isActive()).isTrue();
+        assertThat(mProvider.getRequest().getIntervalMillis()).isEqualTo(5);
+        assertThat(mProvider.getRequest().isAdasGnssBypass()).isTrue();
+    }
+
+    @Test
+    public void testProviderRequest_AdasGnssBypass_ProviderDisabled_AdasDisabled() {
+        mInjector.getSettingsHelper().setIgnoreSettingsAllowlist(
+                new PackageTagsList.Builder().add(
+                        IDENTITY.getPackageName()).build());
+        doReturn(true).when(mPackageManager).hasSystemFeature(FEATURE_AUTOMOTIVE);
+        doReturn(true).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+
+        createManager(GPS_PROVIDER);
+
+        ILocationListener listener1 = createMockLocationListener();
+        LocationRequest request1 = new LocationRequest.Builder(5)
+                .setLocationSettingsIgnored(true)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request1, IDENTITY, PERMISSION_FINE, listener1);
+
+        ILocationListener listener2 = createMockLocationListener();
+        LocationRequest request2 = new LocationRequest.Builder(1)
+                .setAdasGnssBypass(true)
+                .setWorkSource(WORK_SOURCE)
+                .build();
+        mManager.registerLocationRequest(request2, IDENTITY, PERMISSION_FINE, listener2);
+
+        mInjector.getLocationSettings().updateUserSettings(IDENTITY.getUserId(),
+                settings -> settings.withAdasGnssLocationEnabled(false));
+        mInjector.getSettingsHelper().setLocationEnabled(false, IDENTITY.getUserId());
+
+        assertThat(mProvider.getRequest().isActive()).isTrue();
+        assertThat(mProvider.getRequest().getIntervalMillis()).isEqualTo(5);
+        assertThat(mProvider.getRequest().isAdasGnssBypass()).isFalse();
+    }
+
     @Test
     public void testProviderRequest_BatterySaver_ScreenOnOff() {
         mInjector.getLocationPowerSaveModeHelper().setLocationPowerSaveMode(
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/provider/StationaryThrottlingLocationProviderTest.java b/services/tests/mockingservicestests/src/com/android/server/location/provider/StationaryThrottlingLocationProviderTest.java
index 04e0151e619a2..63996f0e021c9 100644
--- a/services/tests/mockingservicestests/src/com/android/server/location/provider/StationaryThrottlingLocationProviderTest.java
+++ b/services/tests/mockingservicestests/src/com/android/server/location/provider/StationaryThrottlingLocationProviderTest.java
@@ -27,6 +27,7 @@ import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.MockitoAnnotations.initMocks;
 
+import android.content.Context;
 import android.location.Location;
 import android.location.LocationResult;
 import android.location.provider.ProviderRequest;
@@ -58,6 +59,7 @@ public class StationaryThrottlingLocationProviderTest {
     private TestInjector mInjector;
     private FakeProvider mDelegateProvider;
 
+    private @Mock Context mContext;
     private @Mock AbstractLocationProvider.Listener mListener;
     private @Mock FakeProvider.FakeProviderInterface mDelegate;
 
@@ -72,7 +74,7 @@ public class StationaryThrottlingLocationProviderTest {
 
         mRandom = new Random(seed);
 
-        mInjector = new TestInjector();
+        mInjector = new TestInjector(mContext);
         mDelegateProvider = new FakeProvider(mDelegate);
 
         mProvider = new StationaryThrottlingLocationProvider("test_provider", mInjector,
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/settings/FakeLocationSettings.java b/services/tests/mockingservicestests/src/com/android/server/location/settings/FakeLocationSettings.java
new file mode 100644
index 0000000000000..4d46abaa67336
--- /dev/null
+++ b/services/tests/mockingservicestests/src/com/android/server/location/settings/FakeLocationSettings.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2021 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.location.settings;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import java.io.File;
+
+public class FakeLocationSettings extends LocationSettings {
+
+    public FakeLocationSettings(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected File getUserSettingsDir(int userId) {
+        return ApplicationProvider.getApplicationContext().getCacheDir();
+    }
+
+    @Override
+    protected LocationUserSettingsStore createUserSettingsStore(int userId, File file) {
+        return new FakeLocationUserSettingsStore(userId, file);
+    }
+
+    private class FakeLocationUserSettingsStore extends LocationUserSettingsStore {
+
+        FakeLocationUserSettingsStore(int userId, File file) {
+            super(userId, file);
+        }
+
+        @Override
+        protected void onChange(LocationUserSettings oldSettings,
+                LocationUserSettings newSettings) {
+            fireListeners(mUserId, oldSettings, newSettings);
+        }
+    }
+}
+
diff --git a/services/tests/mockingservicestests/src/com/android/server/location/settings/LocationSettingsTest.java b/services/tests/mockingservicestests/src/com/android/server/location/settings/LocationSettingsTest.java
new file mode 100644
index 0000000000000..4b6c79b954cd5
--- /dev/null
+++ b/services/tests/mockingservicestests/src/com/android/server/location/settings/LocationSettingsTest.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2021 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.location.settings;
+
+import static android.content.pm.PackageManager.FEATURE_AUTOMOTIVE;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.after;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.verify;
+import static org.mockito.MockitoAnnotations.initMocks;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.platform.test.annotations.Presubmit;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.internal.R;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+
+import java.io.File;
+
+@Presubmit
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class LocationSettingsTest {
+
+    private @Mock Context mContext;
+    private @Mock Resources mResources;
+    private @Mock PackageManager mPackageManager;
+
+    private LocationSettings mLocationSettings;
+
+    @Before
+    public void setUp() {
+        initMocks(this);
+
+        doReturn(mResources).when(mContext).getResources();
+        doReturn(mPackageManager).when(mContext).getPackageManager();
+        doReturn(true).when(mPackageManager).hasSystemFeature(FEATURE_AUTOMOTIVE);
+
+        resetLocationSettings();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        mLocationSettings.deleteFiles();
+    }
+
+    private void resetLocationSettings() {
+        mLocationSettings = new LocationSettings(mContext) {
+            @Override
+            protected File getUserSettingsDir(int userId) {
+                return ApplicationProvider.getApplicationContext().getCacheDir();
+            }
+        };
+    }
+
+    @Test
+    public void testLoadDefaults() {
+        doReturn(true).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isTrue();
+
+        doReturn(false).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+        assertThat(mLocationSettings.getUserSettings(2).isAdasGnssLocationEnabled()).isFalse();
+    }
+
+    @Test
+    public void testUpdate() {
+        doReturn(false).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(true));
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isTrue();
+
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(false));
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isFalse();
+    }
+
+    @Test
+    public void testSerialization() throws Exception {
+        doReturn(false).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(true));
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isTrue();
+
+        mLocationSettings.flushFiles();
+        resetLocationSettings();
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isTrue();
+    }
+
+    @Test
+    public void testListeners() {
+        doReturn(false).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+        LocationSettings.LocationUserSettingsListener listener = mock(
+                LocationSettings.LocationUserSettingsListener.class);
+
+        mLocationSettings.registerLocationUserSettingsListener(listener);
+
+        ArgumentCaptor<LocationUserSettings> oldCaptor = ArgumentCaptor.forClass(
+                LocationUserSettings.class);
+        ArgumentCaptor<LocationUserSettings> newCaptor = ArgumentCaptor.forClass(
+                LocationUserSettings.class);
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(true));
+        verify(listener, timeout(500).times(1)).onLocationUserSettingsChanged(eq(1),
+                oldCaptor.capture(), newCaptor.capture());
+        assertThat(oldCaptor.getValue().isAdasGnssLocationEnabled()).isFalse();
+        assertThat(newCaptor.getValue().isAdasGnssLocationEnabled()).isTrue();
+
+        oldCaptor = ArgumentCaptor.forClass(LocationUserSettings.class);
+        newCaptor = ArgumentCaptor.forClass(LocationUserSettings.class);
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(false));
+        verify(listener, timeout(500).times(2)).onLocationUserSettingsChanged(eq(1),
+                oldCaptor.capture(), newCaptor.capture());
+        assertThat(oldCaptor.getValue().isAdasGnssLocationEnabled()).isTrue();
+        assertThat(newCaptor.getValue().isAdasGnssLocationEnabled()).isFalse();
+
+        mLocationSettings.unregisterLocationUserSettingsListener(listener);
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(true));
+        verify(listener, after(500).times(2)).onLocationUserSettingsChanged(anyInt(), any(), any());
+    }
+
+    @Test
+    public void testNonAutomotive() {
+        doReturn(false).when(mPackageManager).hasSystemFeature(FEATURE_AUTOMOTIVE);
+        doReturn(true).when(mResources).getBoolean(R.bool.config_defaultAdasGnssLocationEnabled);
+
+        LocationSettings.LocationUserSettingsListener listener = mock(
+                LocationSettings.LocationUserSettingsListener.class);
+        mLocationSettings.registerLocationUserSettingsListener(listener);
+
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isFalse();
+        mLocationSettings.updateUserSettings(1,
+                settings -> settings.withAdasGnssLocationEnabled(true));
+        assertThat(mLocationSettings.getUserSettings(1).isAdasGnssLocationEnabled()).isFalse();
+        verify(listener, after(500).never()).onLocationUserSettingsChanged(anyInt(), any(), any());
+    }
+}