1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.internal.content; 18 19 import android.os.storage.IMountService; 20 21 import android.os.IBinder; 22 import android.os.RemoteException; 23 import android.os.ServiceManager; 24 import android.os.storage.StorageResultCode; 25 import android.util.Log; 26 27 import java.io.File; 28 29 /** 30 * Constants used internally between the PackageManager 31 * and media container service transports. 32 * Some utility methods to invoke MountService api. 33 */ 34 public class PackageHelper { 35 public static final int RECOMMEND_INSTALL_INTERNAL = 1; 36 public static final int RECOMMEND_INSTALL_EXTERNAL = 2; 37 public static final int RECOMMEND_FAILED_INSUFFICIENT_STORAGE = -1; 38 public static final int RECOMMEND_FAILED_INVALID_APK = -2; 39 public static final int RECOMMEND_FAILED_INVALID_LOCATION = -3; 40 public static final int RECOMMEND_FAILED_ALREADY_EXISTS = -4; 41 public static final int RECOMMEND_MEDIA_UNAVAILABLE = -5; 42 private static final boolean localLOGV = true; 43 private static final String TAG = "PackageHelper"; 44 // App installation location settings values 45 public static final int APP_INSTALL_AUTO = 0; 46 public static final int APP_INSTALL_INTERNAL = 1; 47 public static final int APP_INSTALL_EXTERNAL = 2; 48 49 public static IMountService getMountService() { 50 IBinder service = ServiceManager.getService("mount"); 51 if (service != null) { 52 return IMountService.Stub.asInterface(service); 53 } else { 54 Log.e(TAG, "Can't get mount service"); 55 } 56 return null; 57 } 58 59 public static String createSdDir(File tmpPackageFile, String cid, 60 String sdEncKey, int uid) { 61 // Create mount point via MountService 62 IMountService mountService = getMountService(); 63 long len = tmpPackageFile.length(); 64 int mbLen = (int) (len >> 20); 65 if ((len - (mbLen * 1024 * 1024)) > 0) { 66 mbLen++; 67 } 68 // Add buffer size 69 mbLen++; 70 if (localLOGV) Log.i(TAG, "Size of container " + mbLen + " MB " + len + " bytes"); 71 72 try { 73 int rc = mountService.createSecureContainer( 74 cid, mbLen, "fat", sdEncKey, uid); 75 if (rc != StorageResultCode.OperationSucceeded) { 76 Log.e(TAG, "Failed to create secure container " + cid); 77 return null; 78 } 79 String cachePath = mountService.getSecureContainerPath(cid); 80 if (localLOGV) Log.i(TAG, "Created secure container " + cid + 81 " at " + cachePath); 82 return cachePath; 83 } catch (RemoteException e) { 84 Log.e(TAG, "MountService running?"); 85 } 86 return null; 87 } 88 89 public static String mountSdDir(String cid, String key, int ownerUid) { 90 try { 91 int rc = getMountService().mountSecureContainer(cid, key, ownerUid); 92 if (rc != StorageResultCode.OperationSucceeded) { 93 Log.i(TAG, "Failed to mount container " + cid + " rc : " + rc); 94 return null; 95 } 96 return getMountService().getSecureContainerPath(cid); 97 } catch (RemoteException e) { 98 Log.e(TAG, "MountService running?"); 99 } 100 return null; 101 } 102 103 public static boolean unMountSdDir(String cid) { 104 try { 105 int rc = getMountService().unmountSecureContainer(cid, true); 106 if (rc != StorageResultCode.OperationSucceeded) { 107 Log.e(TAG, "Failed to unmount " + cid + " with rc " + rc); 108 return false; 109 } 110 return true; 111 } catch (RemoteException e) { 112 Log.e(TAG, "MountService running?"); 113 } 114 return false; 115 } 116 117 public static boolean renameSdDir(String oldId, String newId) { 118 try { 119 int rc = getMountService().renameSecureContainer(oldId, newId); 120 if (rc != StorageResultCode.OperationSucceeded) { 121 Log.e(TAG, "Failed to rename " + oldId + " to " + 122 newId + "with rc " + rc); 123 return false; 124 } 125 return true; 126 } catch (RemoteException e) { 127 Log.i(TAG, "Failed ot rename " + oldId + " to " + newId + 128 " with exception : " + e); 129 } 130 return false; 131 } 132 133 public static String getSdDir(String cid) { 134 try { 135 return getMountService().getSecureContainerPath(cid); 136 } catch (RemoteException e) { 137 Log.e(TAG, "Failed to get container path for " + cid + 138 " with exception " + e); 139 } 140 return null; 141 } 142 143 public static boolean finalizeSdDir(String cid) { 144 try { 145 int rc = getMountService().finalizeSecureContainer(cid); 146 if (rc != StorageResultCode.OperationSucceeded) { 147 Log.i(TAG, "Failed to finalize container " + cid); 148 return false; 149 } 150 return true; 151 } catch (RemoteException e) { 152 Log.e(TAG, "Failed to finalize container " + cid + 153 " with exception " + e); 154 } 155 return false; 156 } 157 158 public static boolean destroySdDir(String cid) { 159 try { 160 if (localLOGV) Log.i(TAG, "Forcibly destroying container " + cid); 161 int rc = getMountService().destroySecureContainer(cid, true); 162 if (rc != StorageResultCode.OperationSucceeded) { 163 Log.i(TAG, "Failed to destroy container " + cid); 164 return false; 165 } 166 return true; 167 } catch (RemoteException e) { 168 Log.e(TAG, "Failed to destroy container " + cid + 169 " with exception " + e); 170 } 171 return false; 172 } 173 174 public static String[] getSecureContainerList() { 175 try { 176 return getMountService().getSecureContainerList(); 177 } catch (RemoteException e) { 178 Log.e(TAG, "Failed to get secure container list with exception" + 179 e); 180 } 181 return null; 182 } 183 184 public static boolean isContainerMounted(String cid) { 185 try { 186 return getMountService().isSecureContainerMounted(cid); 187 } catch (RemoteException e) { 188 Log.e(TAG, "Failed to find out if container " + cid + " mounted"); 189 } 190 return false; 191 } 192 } 193
