diff options
| -rw-r--r-- | core/java/android/os/RecoverySystem.java | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/core/java/android/os/RecoverySystem.java b/core/java/android/os/RecoverySystem.java index 93c1690e3813..43184ea4b9a9 100644 --- a/core/java/android/os/RecoverySystem.java +++ b/core/java/android/os/RecoverySystem.java @@ -26,6 +26,7 @@ import android.annotation.RequiresPermission; import android.annotation.SuppressLint; import android.annotation.SystemApi; import android.annotation.SystemService; +import android.app.KeyguardManager; import android.app.PendingIntent; import android.compat.annotation.UnsupportedAppUsage; import android.content.BroadcastReceiver; @@ -631,10 +632,15 @@ public class RecoverySystem { /** * Prepare to apply an unattended update by asking the user for their Lock Screen Knowledge * Factor (LSKF). If supplied, the {@code intentSender} will be called when the system is setup - * and ready to apply the OTA. This API is expected to handle requests from multiple clients - * simultaneously, e.g. from ota and mainline. + * and ready to apply the OTA. <p> * - * <p> The behavior of multi-client Resume on Reboot works as follows + * <p> If the device doesn't setup a lock screen, i.e. by checking + * {@link KeyguardManager#isKeyguardSecure()}, this API call will fail and throw an exception. + * Callers are expected to use {@link PowerManager#reboot(String)} directly without going + * through the RoR flow. <p> + * + * <p> This API is expected to handle requests from multiple clients simultaneously, e.g. + * from ota and mainline. The behavior of multi-client Resume on Reboot works as follows * <li> Each client should call this function to prepare for Resume on Reboot before calling * {@link #rebootAndApply(Context, String, boolean)} </li> * <li> One client cannot clear the Resume on Reboot preparation of another client. </li> @@ -658,6 +664,13 @@ public class RecoverySystem { if (updateToken == null) { throw new NullPointerException("updateToken == null"); } + + KeyguardManager keyguardManager = context.getSystemService(KeyguardManager.class); + if (keyguardManager == null || !keyguardManager.isDeviceSecure()) { + throw new IOException("Failed to request LSKF because the device doesn't have a" + + " lock screen. "); + } + RecoverySystem rs = (RecoverySystem) context.getSystemService(Context.RECOVERY_SERVICE); if (!rs.requestLskf(context.getPackageName(), intentSender)) { throw new IOException("preparation for update failed"); |