Add whitelist for location settings piercing

Use a whitelist to control which packages may use location piercing
settings on LocationRequest.

Test: Manually
Bug: 118883513
Change-Id: I16e8496c49b6bef016cb7f090969ed97a39e38c2

2 files changed, 30 insertions, 0 deletions

diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 5dfabfa74ca5..4e278b40c9bf 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -9493,6 +9493,14 @@ public final class Settings {
             "location_background_throttle_package_whitelist";
 
         /**
+         * Packages that are whitelisted for ignoring location settings (may retrieve location even
+         * when user location settings are off), for emergency purposes.
+         * @hide
+         */
+        public static final String LOCATION_IGNORE_SETTINGS_PACKAGE_WHITELIST =
+                "location_ignore_settings_package_whitelist";
+
+        /**
          * Whether to disable location status callbacks in preparation for deprecation.
          * @hide
          */
diff --git a/core/java/com/android/server/SystemConfig.java b/core/java/com/android/server/SystemConfig.java
index 841e5b679f5f..3537465db682 100644
--- a/core/java/com/android/server/SystemConfig.java
+++ b/core/java/com/android/server/SystemConfig.java
@@ -140,6 +140,10 @@ public class SystemConfig {
     // without throttling, as read from the configuration files.
     final ArraySet<String> mAllowUnthrottledLocation = new ArraySet<>();
 
+    // These are the packages that are white-listed to be able to retrieve location even when user
+    // location settings are off, for emergency purposes, as read from the configuration files.
+    final ArraySet<String> mAllowIgnoreLocationSettings = new ArraySet<>();
+
     // These are the action strings of broadcasts which are whitelisted to
     // be delivered anonymously even to apps which target O+.
     final ArraySet<String> mAllowImplicitBroadcasts = new ArraySet<>();
@@ -255,6 +259,10 @@ public class SystemConfig {
         return mAllowUnthrottledLocation;
     }
 
+    public ArraySet<String> getAllowIgnoreLocationSettings() {
+        return mAllowIgnoreLocationSettings;
+    }
+
     public ArraySet<String> getLinkedApps() {
         return mLinkedApps;
     }
@@ -682,6 +690,20 @@ public class SystemConfig {
                         }
                         XmlUtils.skipCurrentTag(parser);
                     } break;
+                    case "allow-ignore-location-settings": {
+                        if (allowAll) {
+                            String pkgname = parser.getAttributeValue(null, "package");
+                            if (pkgname == null) {
+                                Slog.w(TAG, "<" + name + "> without package in "
+                                        + permFile + " at " + parser.getPositionDescription());
+                            } else {
+                                mAllowIgnoreLocationSettings.add(pkgname);
+                            }
+                        } else {
+                            logNotAllowedInPartition(name, permFile, parser);
+                        }
+                        XmlUtils.skipCurrentTag(parser);
+                    } break;
                     case "allow-implicit-broadcast": {
                         if (allowAll) {
                             String action = parser.getAttributeValue(null, "action");