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Commit 2c84cc2e authored by Rubin Xu's avatar Rubin Xu
Browse files

clear caller identify before sending system update notification 

Because DeviceAdminReceiver is protected by BIND_DEVICE_ADMIN permission,
in order to send broadcast to it, we need to clear the caller's identity
and call sendBroadcastAsUser() as system.

Bug: 20213644
Change-Id: Icc7b239b9005e286012ade6580ec92a0a57198e0
parent c454f786

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

+10 −4
Original line number Diff line number Diff line
@@ -6296,10 +6296,16 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 
                return;

            }



            ActivityInfo[] receivers = null;

            try {

                ActivityInfo[] receivers  = mContext.getPackageManager().getPackageInfo(

                receivers  = mContext.getPackageManager().getPackageInfo(

                        deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers;

            } catch (NameNotFoundException e) {

                Log.e(LOG_TAG, "Cannot find device owner package", e);

            }

            if (receivers != null) {

                long ident = Binder.clearCallingIdentity();

                try {

                    for (int i = 0; i < receivers.length; i++) {

                        if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) {

                            intent.setComponent(new ComponentName(deviceOwnerPackage,
@@ -6307,9 +6313,9 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 
                            mContext.sendBroadcastAsUser(intent, UserHandle.OWNER);

                        }

                    }

                } finally {

                    Binder.restoreCallingIdentity(ident);

                }

            } catch (NameNotFoundException e) {

                Log.e(LOG_TAG, "Cannot find device owner package", e);

            }

        }

    }