fix: reset stuck start lock on system Always-on VPN restart (#5958)

* fix: reset stuck start lock on system Always-on VPN restart

When Android restarts CoreVpnService for Always-on VPN (via VpnService.SERVICE_INTERFACE
or null intent), a stuck isStartingLock from a killed process prevents tryLockStart() from
succeeding, causing an immediate return without setupVpnService().

Fix: Reset stuck start lock via unlockStart() on system-initiated VPN start/restart,
allowing setupVpnService() to establish the TUN interface. If setup fails during system
start, return START_STICKY to keep the service alive for OS reconnection.

Also accept LOCKED_BOOT_COMPLETED and MY_PACKAGE_REPLACED in BootReceiver.

* Update BootReceiver.kt

* Update CoreVpnService.kt

---------

Co-authored-by: 2dust <31833384+2dust@users.noreply.github.com>

V2rayNG/app/src/main/AndroidManifest.xml

@@ -282,6 +282,8 @@
             android:label="BootReceiver">
             <intent-filter>
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
+                <action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
             </intent-filter>
         </receiver>
 

V2rayNG/app/src/main/java/com/v2ray/ang/receiver/BootReceiver.kt

@@ -3,6 +3,7 @@ package com.v2ray.ang.receiver
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
+import android.os.UserManager
 import com.v2ray.ang.AppConfig
 import com.v2ray.ang.core.CoreServiceManager
 import com.v2ray.ang.handler.MmkvManager
@@ -12,18 +13,34 @@ import com.v2ray.ang.util.LogUtil
 class BootReceiver : BroadcastReceiver() {
     /**
      * This method is called when the BroadcastReceiver is receiving an Intent broadcast.
-     * It checks if the context is not null and the action is ACTION_BOOT_COMPLETED.
+     * It handles BOOT_COMPLETED, LOCKED_BOOT_COMPLETED, and MY_PACKAGE_REPLACED.
      * If the conditions are met, it starts the V2Ray service.
      *
      * @param context The Context in which the receiver is running.
      * @param intent The Intent being received.
      */
     override fun onReceive(context: Context?, intent: Intent?) {
-        LogUtil.i(AppConfig.TAG, "BootReceiver received: ${intent?.action}")
+        val action = intent?.action ?: return
+        if (context == null) return
 
-        if (context == null || intent?.action != Intent.ACTION_BOOT_COMPLETED) {
+        LogUtil.i(AppConfig.TAG, "BootReceiver received: $action")
-            LogUtil.w(AppConfig.TAG, "BootReceiver: Invalid context or action")
+
-            return
+        when (action) {
+            Intent.ACTION_BOOT_COMPLETED,
+            Intent.ACTION_MY_PACKAGE_REPLACED -> {
+                // Continue
+            }
+            Intent.ACTION_LOCKED_BOOT_COMPLETED -> {
+                val userManager = context.getSystemService(Context.USER_SERVICE) as? UserManager
+                if (userManager != null && !userManager.isUserUnlocked) {
+                    LogUtil.w(AppConfig.TAG, "BootReceiver: User is locked, skipping auto start")
+                    return
+                }
+            }
+            else -> {
+                LogUtil.w(AppConfig.TAG, "BootReceiver: Unhandled action: $action")
+                return
+            }
         }
 
         if (!MmkvManager.decodeStartOnBoot()) {

V2rayNG/app/src/main/java/com/v2ray/ang/service/CoreVpnService.kt

@@ -116,20 +116,26 @@ class CoreVpnService : VpnService(), ServiceControl {
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        // Always-on VPN restarts from OS deliver intent.action == SERVICE_INTERFACE or null intent.
+        // Reset any stuck start lock left by a killed process to allow setupVpnService() to run.
+        val isSystemVpnStart = intent == null || intent.action == SERVICE_INTERFACE
+        if (isSystemVpnStart) {
+            unlockStart()
+        }
         if (!tryLockStart()) {
             LogUtil.w(AppConfig.TAG, "StartCore-VPN: Start already in progress")
             return START_NOT_STICKY
         }
-        LogUtil.i(AppConfig.TAG, "StartCore-VPN: Service command received")
+        LogUtil.i(AppConfig.TAG, "StartCore-VPN: Service command received, systemVpnStart=$isSystemVpnStart")
         NotificationManager.showNotification(null)
         if (!setupVpnService()) {
             unlockStart()
+            // Stop service if setup fails to avoid infinite restart loops (START_STICKY)
             stopSelf()
             return START_NOT_STICKY
         }
         startService()
         return START_STICKY
-        //return super.onStartCommand(intent, flags, startId)
     }
 
     override fun getService(): Service {