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android 禁止第三方apk安装和卸载的方法详解

韩景辉
2023-03-14
本文向大家介绍android 禁止第三方apk安装和卸载的方法详解,包括了android 禁止第三方apk安装和卸载的方法详解的使用技巧和注意事项,需要的朋友参考一下

需求是这样的,客户要求提供系统的接口来控制apk的安装和卸载,接口如下

boolean setAppInstallationPolicies(int mode, String[] appPackageNames)
mode:应用名单类型
0:黑名单(应用包名列表中的所有项都不允许安装);
1:白名单(只允许安装应用包名列表中的项)。
appPackageNames:应用包名列表。当appPackageNames为空时,取消所有已设定的应用。
成功返回true;失败返回false。
String[] getAppInstallationPolicies()
返回值为当前应用安装管控状态
string[0]:功能模式,参见setAppInstallationPolicies方法的mode参数。
string[1]至string[n-1]:应用包名列表。
 
 
boolean setAppUninstallationPolicies(int mode, String[] appPackageNames)
mode:应用名单类型
0:黑名单(应用包名列表中的所有项均强制卸载);
1:白名单(应用包名列表中的所有项禁止卸载)。
appPackageNames:应用包名列表。当appPackageNames为空时,取消所有已设定的应用。
成功返回true;失败返回false。
String[] getAppUninstallationPolicies()
返回值为当前应用卸载管控状态
string[0]:功能模式,参见setAppUninstallationPolicies方法的mode参数。
string[1]至string[n-1]:应用包名列表。

android版本为9.0,首先想到的是在系统里面添加一个自己的service,分别在frameworks/base/core/java/android/app/添加IPolicyManager.aidl,frameworks/base/services/core/java/com/android/server/添加PolicyManagerService.java,在frameworks/base/添加policy/java/ga/mdm/PolicyManager.java,内容如下

package android.app;
 
/** {@hide} */
interface IPolicyManager
{
	
	boolean setAppInstallationPolicies(int mode,inout String[] appPackageNames);
	
	String[] getAppInstallationPolicies();
	
	boolean setAppUninstallationPolicies(int mode,inout String[] appPackageNames);
	
	String[] getAppUninstallationPolicies();
	
}
package com.android.server;
 
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
 
import android.os.ServiceManager;
import android.os.SystemProperties;
import android.provider.Settings;
import android.util.Slog;
 
import java.lang.reflect.Field;
import java.util.ArrayList;
 
import android.app.IPolicyManager;
import android.net.wifi.WifiManager;
import android.content.pm.PackageManager;
import android.app.ActivityManager;
import android.content.pm.IPackageDataObserver;
 
public class PolicyManagerService extends IPolicyManager.Stub {
	
	private final String TAG = "PolicyManagerService";
	private Context mContext;
	
	private String[] mAppPackageNames = null;
	
	private String[] mAppUninstallPackageNames = null;
	
	
 public PolicyManagerService(Context context) {
  mContext = context;
 
 }
	
	@Override
	public boolean setAppInstallationPolicies(int mode, String[] appPackageNames){
		if(mode==0){
			Settings.System.putInt(mContext.getContentResolver(),"customer_app_status", 0);	
		}else if(mode==1){
			Settings.System.putInt(mContext.getContentResolver(),"customer_app_status", 1);	
		}else{
			return false;
		}
		mAppPackageNames = appPackageNames;
		return true;
	}
	
	@Override
	public String[] getAppInstallationPolicies(){
		return mAppPackageNames;
	}
	@Override
	public boolean setAppUninstallationPolicies(int mode,String[] appPackageNames){
		if(mode==0){
			Settings.System.putInt(mContext.getContentResolver(),"customer_appuninstall_status", 0);	
		}else if(mode==1){
			Settings.System.putInt(mContext.getContentResolver(),"customer_appuninstall_status", 1);	
		}else{
			return false;
		}
		mAppUninstallPackageNames = appPackageNames;
		return true;
	}
	@Override
	public String[] getAppUninstallationPolicies(){
		return mAppUninstallPackageNames;
	}
}
package ga.mdm;
 
import android.util.Slog;
import android.os.RemoteException;
import android.content.Context;
import android.app.IPolicyManager;
 
public class PolicyManager {
	private final String TAG = "PolicyManager";
	Context mContext;
 
 private final IPolicyManager mService;
 
 public PolicyManager(Context context,IPolicyManager mService) {
		mContext = context;
  this.mService = mService;
 }
 
	
	public boolean setAppInstallationPolicies(int mode,String[] appPackageNames){
		try { 
			return mService.setAppInstallationPolicies(mode,appPackageNames);
  } catch (RemoteException ex) {
   ex.printStackTrace();
			return false;
  } 
	}
	
	public String[] getAppInstallationPolicies(){
		try { 
			return mService.getAppInstallationPolicies();
  } catch (RemoteException ex) {
   ex.printStackTrace();
			return null;
  } 
	}
	
	public boolean setAppUninstallationPolicies(int mode,String[] appPackageNames){
		try { 
			return mService.setAppUninstallationPolicies(mode,appPackageNames);
  } catch (RemoteException ex) {
   ex.printStackTrace();
			return false;
  } 
	}
	
	public String[] getAppUninstallationPolicies(){
		try { 
			return mService.getAppUninstallationPolicies();
  } catch (RemoteException ex) {
   ex.printStackTrace();
			return null;
  } 
	}
	
}

同时在frameworks/base/policy/添加Android.mk

# Copyright (C) 2014 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#  http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
 
LOCAL_PATH := $(call my-dir)
 
# Build the java code
# ============================================================
 
include $(CLEAR_VARS)
 
LOCAL_AIDL_INCLUDES := $(LOCAL_PATH)/java
LOCAL_SRC_FILES := $(call all-java-files-under, java) \
	$(call all-Iaidl-files-under, java) \
	$(call all-logtags-files-under, java)
 
LOCAL_JAVA_LIBRARIES := services
LOCAL_MODULE := policy
 
include $(BUILD_JAVA_LIBRARY)
 
include $(call all-makefiles-under,$(LOCAL_PATH))

这里为什么将PolicyManager.java单独出来,因为PolicyManager.java是提供给客户用的,单独生成一个jar包,客户只需要使用policy.jar就可以调用,同时需要添加

--- frameworks/base/Android.bp	(revision 221)
+++ frameworks/base/Android.bp	(working copy)
@@ -46,7 +46,8 @@
     "wifi/java/**/*.java",
     "keystore/java/**/*.java",
     "rs/java/**/*.java",
-
+		"policy/java/**/*.java",
+	
     ":framework-javastream-protos",
 
     "core/java/android/accessibilityservice/IAccessibilityServiceConnection.aidl",
@@ -105,6 +106,7 @@
     "core/java/android/app/usage/ICacheQuotaService.aidl",
     "core/java/android/app/usage/IStorageStatsManager.aidl",
     "core/java/android/app/usage/IUsageStatsManager.aidl",
+		"core/java/android/app/IPolicyManager.aidl",
     ":libbluetooth-binder-aidl",
     "core/java/android/content/IClipboard.aidl",
     "core/java/android/content/IContentService.aidl",

 将路径添加到,否则不会编译

-- build/make/core/pathmap.mk	(revision 221)
+++ build/make/core/pathmap.mk	(working copy)
@@ -83,6 +83,7 @@
 	  lowpan \
 	  keystore \
 	  rs \
+		policy \
 	 )

 添加模块

--- build/make/target/product/base.mk	(revision 221)
+++ build/make/target/product/base.mk	(working copy)
@@ -142,7 +142,8 @@
   traced_probes \
   vdc \
   vold \
-  wm
+  wm \
+	policy

添加注册服务的代码

--- frameworks/base/core/java/android/content/Context.java	(revision 221)
+++ frameworks/base/core/java/android/content/Context.java	(working copy)
@@ -4198,6 +4198,9 @@
   * @see #getSystemService(String)
   */
   public static final String CROSS_PROFILE_APPS_SERVICE = "crossprofileapps";
+	
+	
+	public static final String POLICY_SERVICE = "policy";
+import ga.mdm.PolicyManager;
+
 /**
 * Manages all of the system services that can be returned by {@link Context#getSystemService}.
 * Used by {@link ContextImpl}.
@@ -982,6 +984,15 @@
         return new VrManager(IVrManager.Stub.asInterface(b));
       }
     });
+		
+		registerService(Context.POLICY_SERVICE, PolicyManager.class,
+        new CachedServiceFetcher<PolicyManager>() {
+      @Override
+      public PolicyManager createService(ContextImpl ctx) {
+        IBinder b = ServiceManager.getService(Context.POLICY_SERVICE);
+        IPolicyManager service = IPolicyManager.Stub.asInterface(b);
+        return new PolicyManager(ctx, service);
+    }});
+import com.android.server.PolicyManagerService;
+
 public final class SystemServer {
   private static final String TAG = "SystemServer";
 
@@ -1287,7 +1289,14 @@
         }
         traceEnd();
       }
-
+			
+			try {                                     
+				Slog.i(TAG, "ClassMonitor Service is create");               
+				ServiceManager.addService(Context.POLICY_SERVICE, new PolicyManagerService(context));
+			} catch (Throwable e) {                            
+				reportWtf("starting ClassMonitorService", e);               
+			}

还需要添加selinux权限

--- system/sepolicy/Android.mk	(revision 221)
+++ system/sepolicy/Android.mk	(working copy)
@@ -244,10 +244,10 @@
 
 ifneq ($(with_asan),true)
 ifneq ($(SELINUX_IGNORE_NEVERALLOWS),true)
-LOCAL_REQUIRED_MODULES += \
-  sepolicy_tests \
-  treble_sepolicy_tests_26.0 \
-  treble_sepolicy_tests_27.0 \
+#LOCAL_REQUIRED_MODULES += \
+#  sepolicy_tests \
+#  treble_sepolicy_tests_26.0 \
+#  treble_sepolicy_tests_27.0 \
 
 endif
 endif
Index: system/sepolicy/prebuilts/api/26.0/nonplat_sepolicy.cil
===================================================================
--- system/sepolicy/prebuilts/api/26.0/nonplat_sepolicy.cil	(revision 221)
+++ system/sepolicy/prebuilts/api/26.0/nonplat_sepolicy.cil	(working copy)
@@ -135,6 +135,8 @@
 (typeattributeset hal_wifi_supplicant_server (hal_wifi_supplicant_default))
 (typeattribute adbd_26_0)
 (roletype object_r adbd_26_0)
+(typeattribute policy_service_26_0)
+(roletype object_r policy_service_26_0)
 (typeattribute audioserver_26_0)
 (roletype object_r audioserver_26_0)
 (typeattribute blkid_26_0)
Index: system/sepolicy/prebuilts/api/27.0/nonplat_sepolicy.cil
===================================================================
--- system/sepolicy/prebuilts/api/27.0/nonplat_sepolicy.cil	(revision 221)
+++ system/sepolicy/prebuilts/api/27.0/nonplat_sepolicy.cil	(working copy)
@@ -267,6 +267,8 @@
 (typeattributeset hal_wifi_supplicant_server (hal_wifi_supplicant_default))
 (typeattribute adbd_27_0)
 (roletype object_r adbd_27_0)
+(typeattribute policy_service_26_0)
+(roletype object_r policy_service_26_0)
 (typeattribute adbd_exec_27_0)
 (roletype object_r adbd_exec_27_0)
 (typeattribute audioserver_27_0)
Index: system/sepolicy/prebuilts/api/28.0/private/app_neverallows.te
===================================================================
--- system/sepolicy/prebuilts/api/28.0/private/app_neverallows.te	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/private/app_neverallows.te	(working copy)
@@ -128,7 +128,6 @@
  proc_stat
  proc_swaps
  proc_uptime
- proc_version
  proc_vmallocinfo
  proc_vmstat
 }:file { no_rw_file_perms no_x_file_perms };
Index: system/sepolicy/prebuilts/api/28.0/private/compat/26.0/26.0.cil
===================================================================
--- system/sepolicy/prebuilts/api/28.0/private/compat/26.0/26.0.cil	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/private/compat/26.0/26.0.cil	(working copy)
@@ -15,6 +15,7 @@
 (type rild)
 
 (typeattributeset accessibility_service_26_0 (accessibility_service))
+(typeattributeset policy_service_26_0 (policy_service))
 (typeattributeset account_service_26_0 (account_service))
 (typeattributeset activity_service_26_0 (activity_service))
 (typeattributeset adbd_26_0 (adbd))
Index: system/sepolicy/prebuilts/api/28.0/private/compat/27.0/27.0.cil
===================================================================
--- system/sepolicy/prebuilts/api/28.0/private/compat/27.0/27.0.cil	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/private/compat/27.0/27.0.cil	(working copy)
@@ -718,6 +718,7 @@
 (expandtypeattribute (zygote_exec_27_0) true)
 (expandtypeattribute (zygote_socket_27_0) true)
 (typeattributeset accessibility_service_27_0 (accessibility_service))
+(typeattributeset policy_service_27_0 (policy_service))
 (typeattributeset account_service_27_0 (account_service))
 (typeattributeset activity_service_27_0 (activity_service))
 (typeattributeset adbd_27_0 (adbd))
Index: system/sepolicy/prebuilts/api/28.0/private/service_contexts
===================================================================
--- system/sepolicy/prebuilts/api/28.0/private/service_contexts	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/private/service_contexts	(working copy)
@@ -186,3 +186,4 @@
 wifirtt                  u:object_r:rttmanager_service:s0
 window                  u:object_r:window_service:s0
 *                     u:object_r:default_android_service:s0
+policy                  u:object_r:policy_service:s0
Index: system/sepolicy/prebuilts/api/28.0/private/system_server.te
===================================================================
--- system/sepolicy/prebuilts/api/28.0/private/system_server.te	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/private/system_server.te	(working copy)
@@ -806,7 +806,7 @@
 # Do not allow opening files from external storage as unsafe ejection
 # could cause the kernel to kill the system_server.
 neverallow system_server sdcard_type:dir { open read write };
-neverallow system_server sdcard_type:file rw_file_perms;
+# neverallow system_server sdcard_type:file rw_file_perms;
 
 # system server should never be operating on zygote spawned app data
 # files directly. Rather, they should always be passed via a
Index: system/sepolicy/prebuilts/api/28.0/public/service.te
===================================================================
--- system/sepolicy/prebuilts/api/28.0/public/service.te	(revision 221)
+++ system/sepolicy/prebuilts/api/28.0/public/service.te	(working copy)
@@ -32,6 +32,7 @@
 type virtual_touchpad_service, service_manager_type;
 type vold_service,       service_manager_type;
 type vr_hwc_service,      service_manager_type;
+type policy_service, 		system_api_service, system_server_service, service_manager_type;
 
 # system_server_services broken down
 type accessibility_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;
Index: system/sepolicy/private/app_neverallows.te
===================================================================
--- system/sepolicy/private/app_neverallows.te	(revision 221)
+++ system/sepolicy/private/app_neverallows.te	(working copy)
@@ -128,7 +128,6 @@
  proc_stat
  proc_swaps
  proc_uptime
- proc_version
  proc_vmallocinfo
  proc_vmstat
 }:file { no_rw_file_perms no_x_file_perms };
Index: system/sepolicy/private/compat/26.0/26.0.cil
===================================================================
--- system/sepolicy/private/compat/26.0/26.0.cil	(revision 221)
+++ system/sepolicy/private/compat/26.0/26.0.cil	(working copy)
@@ -15,6 +15,7 @@
 (type rild)
 
 (typeattributeset accessibility_service_26_0 (accessibility_service))
+(typeattributeset policy_service_26_0 (policy_service))
 (typeattributeset account_service_26_0 (account_service))
 (typeattributeset activity_service_26_0 (activity_service))
 (typeattributeset adbd_26_0 (adbd))
Index: system/sepolicy/private/compat/27.0/27.0.cil
===================================================================
--- system/sepolicy/private/compat/27.0/27.0.cil	(revision 221)
+++ system/sepolicy/private/compat/27.0/27.0.cil	(working copy)
@@ -718,6 +718,7 @@
 (expandtypeattribute (zygote_exec_27_0) true)
 (expandtypeattribute (zygote_socket_27_0) true)
 (typeattributeset accessibility_service_27_0 (accessibility_service))
+(typeattributeset policy_service_27_0 (policy_service))
 (typeattributeset account_service_27_0 (account_service))
 (typeattributeset activity_service_27_0 (activity_service))
 (typeattributeset adbd_27_0 (adbd))
Index: system/sepolicy/private/service_contexts
===================================================================
--- system/sepolicy/private/service_contexts	(revision 221)
+++ system/sepolicy/private/service_contexts	(working copy)
@@ -186,3 +186,4 @@
 wifirtt                  u:object_r:rttmanager_service:s0
 window                  u:object_r:window_service:s0
 *                     u:object_r:default_android_service:s0
+policy                  u:object_r:policy_service:s0
Index: system/sepolicy/private/system_server.te
===================================================================
--- system/sepolicy/private/system_server.te	(revision 221)
+++ system/sepolicy/private/system_server.te	(working copy)
@@ -806,7 +806,7 @@
 # Do not allow opening files from external storage as unsafe ejection
 # could cause the kernel to kill the system_server.
 neverallow system_server sdcard_type:dir { open read write };
-neverallow system_server sdcard_type:file rw_file_perms;
+# neverallow system_server sdcard_type:file rw_file_perms;
 
 # system server should never be operating on zygote spawned app data
 # files directly. Rather, they should always be passed via a
Index: system/sepolicy/public/service.te
===================================================================
--- system/sepolicy/public/service.te	(revision 221)
+++ system/sepolicy/public/service.te	(working copy)
@@ -32,6 +32,7 @@
 type virtual_touchpad_service, service_manager_type;
 type vold_service,       service_manager_type;
 type vr_hwc_service,      service_manager_type;
+type policy_service, 		system_api_service, system_server_service, service_manager_type;
 
 # system_server_services broken down
 type accessibility_service, app_api_service, ephemeral_app_api_service, system_server_service, service_manager_type;

这样就行了,烧录重新开机使用adb shell service list可以看到添加的service

policy: [android.app.IPolicyManager]

在\out\target\common\obj\JAVA_LIBRARIES\policy_intermediates找到classes.jar,这就是提供给客户用的jar

具体的禁止和卸载方法如下:

禁止安装可以修改PackageManagerService.java,在handleStartCopy方法中添加下面的代码

public void handleStartCopy() throws RemoteException {
      int ret = PackageManager.INSTALL_SUCCEEDED;
 
      // If we're already staged, we've firmly committed to an install location
      if (origin.staged) {
        if (origin.file != null) {
          installFlags |= PackageManager.INSTALL_INTERNAL;
          installFlags &= ~PackageManager.INSTALL_EXTERNAL;
        } else {
          throw new IllegalStateException("Invalid stage location");
        }
      }
 
      final boolean onSd = (installFlags & PackageManager.INSTALL_EXTERNAL) != 0;
      final boolean onInt = (installFlags & PackageManager.INSTALL_INTERNAL) != 0;
      final boolean ephemeral = (installFlags & PackageManager.INSTALL_INSTANT_APP) != 0;
      PackageInfoLite pkgLite = null;
 
      if (onInt && onSd) {
        // Check if both bits are set.
        Slog.w(TAG, "Conflicting flags specified for installing on both internal and external");
        ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
      } else if (onSd && ephemeral) {
        Slog.w(TAG, "Conflicting flags specified for installing ephemeral on external");
        ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
      } else {
        pkgLite = mContainerService.getMinimalPackageInfo(origin.resolvedPath, installFlags,
            packageAbiOverride);
				
				//add by jueme
				PolicyManager policyManager = (PolicyManager)mContext.getSystemService("policy");
				String[] appNames = policyManager.getAppInstallationPolicies();
				if(appNames!=null && appNames.length>0){
					int app_status = android.provider.Settings.System.getInt(mContext.getContentResolver(),"customer_app_status", -1);
					Slog.w(TAG,"app_status "+app_status);
					if(app_status==0){
						for (int i = 0; i < appNames.length; i++) {
							Slog.w(TAG,"appNames 0 "+appNames[i]);
							if (pkgLite.packageName.equals(appNames[i])){
								ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
								break;
							}
						}
					}else if(app_status==1){
						for (int i = 0; i < appNames.length; i++) {
							Slog.w(TAG,"appNames 1 "+appNames[i]);
							if (pkgLite.packageName.equals(appNames[i])){
								ret = PackageManager.INSTALL_SUCCEEDED;
								break;
							}else{
								ret = PackageManager.INSTALL_FAILED_INVALID_INSTALL_LOCATION;
							}
						}
					}
				}
				//add end

这样在安装时候就会报安装位置不对的信息。

接着是禁止卸载,在PackageInstallerService.java的uninstall添加下面的方法。

@Override
  public void uninstall(VersionedPackage versionedPackage, String callerPackageName, int flags,
        IntentSender statusReceiver, int userId) throws RemoteException {
		//add by jueme
		PolicyManager policyManager = (PolicyManager)mContext.getSystemService("policy");
		String[] appNames = policyManager.getAppUninstallationPolicies();
		if(appNames!=null && appNames.length>0){
			int appuninstall_status = android.provider.Settings.System.getInt(mContext.getContentResolver(),"customer_appuninstall_status", -1);
			Slog.w(TAG,"appuninstall_status "+appuninstall_status+" mInstallerPackageName "+versionedPackage.getPackageName());
			boolean isUninstall = true;//默认都是可卸载
			if(appuninstall_status==0){
				for (int i = 0; i < appNames.length; i++) {
					if (versionedPackage.getPackageName().equals(appNames[i])){
						isUninstall = true;
						break;
					}else{
						isUninstall = false;
					}
				}
				if(!isUninstall){
					return;
				}
			}else if(appuninstall_status==1){
				//应用包名列表中的所有项禁止卸载
				for (int i = 0; i < appNames.length; i++) {
					if (versionedPackage.getPackageName().equals(appNames[i])){
						isUninstall = false;
						break;
					}else{
						isUninstall = true;
					}
				}
				if(!isUninstall){
					return;
				}
			}
		}
		//add end

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