From 8bfc53154863752fe03d6374ed6876e8807167ce Mon Sep 17 00:00:00 2001 From: Sarah Chin Date: Mon, 31 Jan 2022 14:59:08 -0800 Subject: [PATCH] Update permissions for ServiceState broadcast Require FINE_LOCATION_ACCESS to get the full service state broadcast, otherwise send the location sanitized copy. Test: manual verify with app Bug: 210118427 Change-Id: Ibfa66624a4157b7c2c7d764e2b6bdb26ac5f1447 Merged-In: Ibfa66624a4157b7c2c7d764e2b6bdb26ac5f1447 (cherry picked from commit d852b695e7a93c973b8a3e8335c43a3724ef3847) --- .../com/android/server/TelephonyRegistry.java | 32 +++++++++++++++---- 1 file changed, 25 insertions(+), 7 deletions(-) diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java index b4413a4447b75..1d8d179851fba 100644 --- a/services/core/java/com/android/server/TelephonyRegistry.java +++ b/services/core/java/com/android/server/TelephonyRegistry.java @@ -2863,14 +2863,32 @@ public class TelephonyRegistry extends ITelephonyRegistry.Stub { intent.putExtra(SubscriptionManager.EXTRA_SUBSCRIPTION_INDEX, subId); intent.putExtra(PHONE_CONSTANTS_SLOT_KEY, phoneId); intent.putExtra(SubscriptionManager.EXTRA_SLOT_INDEX, phoneId); + // Send the broadcast twice -- once for all apps with READ_PHONE_STATE, then again - // for all apps with READ_PRIV but not READ_PHONE_STATE. This ensures that any app holding - // either READ_PRIV or READ_PHONE get this broadcast exactly once. - mContext.sendBroadcastAsUser(intent, UserHandle.ALL, Manifest.permission.READ_PHONE_STATE); - mContext.createContextAsUser(UserHandle.ALL, 0) - .sendBroadcastMultiplePermissions(intent, - new String[] { Manifest.permission.READ_PRIVILEGED_PHONE_STATE }, - new String[] { Manifest.permission.READ_PHONE_STATE }); + // for all apps with READ_PRIVILEGED_PHONE_STATE but not READ_PHONE_STATE. + // Do this again twice, the first time for apps with ACCESS_FINE_LOCATION, then again with + // the location-sanitized service state for all apps without ACCESS_FINE_LOCATION. + // This ensures that any app holding either READ_PRIVILEGED_PHONE_STATE or READ_PHONE_STATE + // get this broadcast exactly once, and we are not exposing location without permission. + mContext.createContextAsUser(UserHandle.ALL, 0).sendBroadcastMultiplePermissions(intent, + new String[] {Manifest.permission.READ_PHONE_STATE, + Manifest.permission.ACCESS_FINE_LOCATION}); + mContext.createContextAsUser(UserHandle.ALL, 0).sendBroadcastMultiplePermissions(intent, + new String[] {Manifest.permission.READ_PRIVILEGED_PHONE_STATE, + Manifest.permission.ACCESS_FINE_LOCATION}, + new String[] {Manifest.permission.READ_PHONE_STATE}); + + // Replace bundle with location-sanitized ServiceState + data = new Bundle(); + state.createLocationInfoSanitizedCopy(true).fillInNotifierBundle(data); + intent.putExtras(data); + mContext.createContextAsUser(UserHandle.ALL, 0).sendBroadcastMultiplePermissions(intent, + new String[] {Manifest.permission.READ_PHONE_STATE}, + new String[] {Manifest.permission.ACCESS_FINE_LOCATION}); + mContext.createContextAsUser(UserHandle.ALL, 0).sendBroadcastMultiplePermissions(intent, + new String[] {Manifest.permission.READ_PRIVILEGED_PHONE_STATE}, + new String[] {Manifest.permission.READ_PHONE_STATE, + Manifest.permission.ACCESS_FINE_LOCATION}); } private void broadcastSignalStrengthChanged(SignalStrength signalStrength, int phoneId,