1 /* 2 ** Copyright 2015, 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 #define LOG_TAG "installd" 18 19 #include <globals.h> 20 #include <installd_constants.h> 21 #include <utils.h> 22 23 #include <android-base/logging.h> 24 25 #include <stdlib.h> 26 #include <string.h> 27 28 namespace android { 29 namespace installd { 30 31 static constexpr const char* APP_SUBDIR = "app/"; // sub-directory under ANDROID_DATA 32 33 static constexpr const char* PRIV_APP_SUBDIR = "priv-app/"; // sub-directory under ANDROID_DATA 34 35 static constexpr const char* EPHEMERAL_APP_SUBDIR = "app-ephemeral/"; // sub-directory under 36 // ANDROID_DATA 37 38 static constexpr const char* APP_LIB_SUBDIR = "app-lib/"; // sub-directory under ANDROID_DATA 39 40 static constexpr const char* MEDIA_SUBDIR = "media/"; // sub-directory under ANDROID_DATA 41 42 static constexpr const char* PROFILES_SUBDIR = "misc/profiles"; // sub-directory under ANDROID_DATA 43 44 static constexpr const char* PRIVATE_APP_SUBDIR = "app-private/"; // sub-directory under 45 // ANDROID_DATA 46 47 std::string android_app_dir; 48 std::string android_app_ephemeral_dir; 49 std::string android_app_lib_dir; 50 std::string android_app_private_dir; 51 std::string android_asec_dir; 52 std::string android_data_dir; 53 std::string android_media_dir; 54 std::string android_mnt_expand_dir; 55 std::string android_profiles_dir; 56 std::string android_root_dir; 57 58 std::vector<std::string> android_system_dirs; 59 60 bool init_globals_from_data_and_root() { 61 const char* data_path = getenv("ANDROID_DATA"); 62 if (data_path == nullptr) { 63 LOG(ERROR) << "Could not find ANDROID_DATA"; 64 return false; 65 } 66 const char* root_path = getenv("ANDROID_ROOT"); 67 if (root_path == nullptr) { 68 LOG(ERROR) << "Could not find ANDROID_ROOT"; 69 return false; 70 } 71 return init_globals_from_data_and_root(data_path, root_path); 72 } 73 74 static std::string ensure_trailing_slash(const std::string& path) { 75 if (path.rfind('/') != path.size() - 1) { 76 return path + '/'; 77 } else { 78 return path; 79 } 80 } 81 82 bool init_globals_from_data_and_root(const char* data, const char* root) { 83 // Get the android data directory. 84 android_data_dir = ensure_trailing_slash(data); 85 86 // Get the android root directory. 87 android_root_dir = ensure_trailing_slash(root); 88 89 // Get the android app directory. 90 android_app_dir = android_data_dir + APP_SUBDIR; 91 92 // Get the android protected app directory. 93 android_app_private_dir = android_data_dir + PRIVATE_APP_SUBDIR; 94 95 // Get the android ephemeral app directory. 96 android_app_ephemeral_dir = android_data_dir + EPHEMERAL_APP_SUBDIR; 97 98 // Get the android app native library directory. 99 android_app_lib_dir = android_data_dir + APP_LIB_SUBDIR; 100 101 // Get the sd-card ASEC mount point. 102 android_asec_dir = ensure_trailing_slash(getenv(ASEC_MOUNTPOINT_ENV_NAME)); 103 104 // Get the android media directory. 105 android_media_dir = android_data_dir + MEDIA_SUBDIR; 106 107 // Get the android external app directory. 108 android_mnt_expand_dir = "/mnt/expand/"; 109 110 // Get the android profiles directory. 111 android_profiles_dir = android_data_dir + PROFILES_SUBDIR; 112 113 // Take note of the system and vendor directories. 114 android_system_dirs.clear(); 115 android_system_dirs.push_back(android_root_dir + APP_SUBDIR); 116 android_system_dirs.push_back(android_root_dir + PRIV_APP_SUBDIR); 117 android_system_dirs.push_back("/vendor/app/"); 118 android_system_dirs.push_back("/oem/app/"); 119 120 return true; 121 } 122 123 } // namespace installd 124 } // namespace android 125
