From d0f66469e1e1c99b904e358393ce6153e88e5a00 Mon Sep 17 00:00:00 2001
From: Haining Chen <hainingc@google.com>
Date: Wed, 1 Feb 2023 16:11:50 -0800
Subject: Allow LockSettings logs to be enabled by adb

To enable the logs, do the following after each reboot:
adb shell setprop log.tag.[TAG_NAME] DEBUG && adb root && adb shell am
restart lock_settings, where TAG_NAME is LockSettingsService or
LockSettingsStrongAuth

Bug: 268526331
Test: Manually enable logs via adb cmds and check logs

Change-Id: I0c081aa008bbcfe6392576822ddf80fbf18ebd4b
---
 .../java/com/android/server/locksettings/LockSettingsService.java  | 4 +++-
 .../com/android/server/locksettings/LockSettingsStrongAuth.java    | 7 +++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/services/core/java/com/android/server/locksettings/LockSettingsService.java b/services/core/java/com/android/server/locksettings/LockSettingsService.java
index 78cffa6f4f79..59794f41d1b7 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsService.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsService.java
@@ -80,6 +80,7 @@ import android.hardware.fingerprint.Fingerprint;
 import android.hardware.fingerprint.FingerprintManager;
 import android.net.Uri;
 import android.os.Binder;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
@@ -117,6 +118,7 @@ import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.EventLog;
+import android.util.Log;
 import android.util.LongSparseArray;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -203,7 +205,7 @@ public class LockSettingsService extends ILockSettings.Stub {
     private static final String TAG = "LockSettingsService";
     private static final String PERMISSION = ACCESS_KEYGUARD_SECURE_STORAGE;
     private static final String BIOMETRIC_PERMISSION = MANAGE_BIOMETRIC;
-    private static final boolean DEBUG = false;
+    private static final boolean DEBUG = Build.IS_DEBUGGABLE && Log.isLoggable(TAG, Log.DEBUG);
 
     private static final int PROFILE_KEY_IV_SIZE = 12;
     private static final String SEPARATE_PROFILE_CHALLENGE_KEY = "lockscreen.profilechallenge";
diff --git a/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java b/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
index 1203769cb72b..678698b5d32b 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
@@ -25,6 +25,7 @@ import android.app.AlarmManager.OnAlarmListener;
 import android.app.admin.DevicePolicyManager;
 import android.app.trust.IStrongAuthTracker;
 import android.content.Context;
+import android.os.Build;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -33,6 +34,7 @@ import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.util.ArrayMap;
+import android.util.Log;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
 import android.util.SparseIntArray;
@@ -46,8 +48,8 @@ import com.android.internal.widget.LockPatternUtils.StrongAuthTracker;
  */
 public class LockSettingsStrongAuth {
 
-    private static final String TAG = "LockSettings";
-    private static final boolean DEBUG = false;
+    private static final String TAG = "LockSettingsStrongAuth";
+    private static final boolean DEBUG = Build.IS_DEBUGGABLE && Log.isLoggable(TAG, Log.DEBUG);
 
     private static final int MSG_REQUIRE_STRONG_AUTH = 1;
     private static final int MSG_REGISTER_TRACKER = 2;
@@ -267,6 +269,7 @@ public class LockSettingsStrongAuth {
     }
 
     private void handleScheduleStrongAuthTimeout(int userId) {
+        if (DEBUG) Slog.d(TAG, "handleScheduleStrongAuthTimeout for userId=" + userId);
         rescheduleStrongAuthTimeoutAlarm(mInjector.getElapsedRealtimeMs(), userId);
 
         // cancel current non-strong biometric alarm listener for the user (if there was one)
-- 
cgit v1.2.3-59-g8ed1b