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 <stdlib.h> 20 #include <string.h> 21 22 #include <log/log.h> // TODO: Move everything to base::logging. 23 24 #include <globals.h> 25 #include <installd_constants.h> 26 #include <utils.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 /* Directory records that are used in execution of commands. */ 48 dir_rec_t android_app_dir; 49 dir_rec_t android_app_ephemeral_dir; 50 dir_rec_t android_app_lib_dir; 51 dir_rec_t android_app_private_dir; 52 dir_rec_t android_asec_dir; 53 dir_rec_t android_data_dir; 54 dir_rec_t android_media_dir; 55 dir_rec_t android_mnt_expand_dir; 56 dir_rec_t android_profiles_dir; 57 58 dir_rec_array_t android_system_dirs; 59 60 /** 61 * Initialize all the global variables that are used elsewhere. Returns 0 upon 62 * success and -1 on error. 63 */ 64 void free_globals() { 65 size_t i; 66 67 for (i = 0; i < android_system_dirs.count; i++) { 68 if (android_system_dirs.dirs[i].path != NULL) { 69 free(android_system_dirs.dirs[i].path); 70 } 71 } 72 73 free(android_system_dirs.dirs); 74 } 75 76 bool init_globals_from_data_and_root(const char* data, const char* root) { 77 // Get the android data directory. 78 if (get_path_from_string(&android_data_dir, data) < 0) { 79 return false; 80 } 81 82 // Get the android app directory. 83 if (copy_and_append(&android_app_dir, &android_data_dir, APP_SUBDIR) < 0) { 84 return false; 85 } 86 87 // Get the android protected app directory. 88 if (copy_and_append(&android_app_private_dir, &android_data_dir, PRIVATE_APP_SUBDIR) < 0) { 89 return false; 90 } 91 92 // Get the android ephemeral app directory. 93 if (copy_and_append(&android_app_ephemeral_dir, &android_data_dir, EPHEMERAL_APP_SUBDIR) < 0) { 94 return false; 95 } 96 97 // Get the android app native library directory. 98 if (copy_and_append(&android_app_lib_dir, &android_data_dir, APP_LIB_SUBDIR) < 0) { 99 return false; 100 } 101 102 // Get the sd-card ASEC mount point. 103 if (get_path_from_env(&android_asec_dir, ASEC_MOUNTPOINT_ENV_NAME) < 0) { 104 return false; 105 } 106 107 // Get the android media directory. 108 if (copy_and_append(&android_media_dir, &android_data_dir, MEDIA_SUBDIR) < 0) { 109 return false; 110 } 111 112 // Get the android external app directory. 113 if (get_path_from_string(&android_mnt_expand_dir, "/mnt/expand/") < 0) { 114 return false; 115 } 116 117 // Get the android profiles directory. 118 if (copy_and_append(&android_profiles_dir, &android_data_dir, PROFILES_SUBDIR) < 0) { 119 return false; 120 } 121 122 // Take note of the system and vendor directories. 123 android_system_dirs.count = 4; 124 125 android_system_dirs.dirs = (dir_rec_t*) calloc(android_system_dirs.count, sizeof(dir_rec_t)); 126 if (android_system_dirs.dirs == NULL) { 127 ALOGE("Couldn't allocate array for dirs; aborting\n"); 128 return false; 129 } 130 131 dir_rec_t android_root_dir; 132 if (get_path_from_string(&android_root_dir, root) < 0) { 133 return false; 134 } 135 136 android_system_dirs.dirs[0].path = build_string2(android_root_dir.path, APP_SUBDIR); 137 android_system_dirs.dirs[0].len = strlen(android_system_dirs.dirs[0].path); 138 139 android_system_dirs.dirs[1].path = build_string2(android_root_dir.path, PRIV_APP_SUBDIR); 140 android_system_dirs.dirs[1].len = strlen(android_system_dirs.dirs[1].path); 141 142 android_system_dirs.dirs[2].path = strdup("/vendor/app/"); 143 android_system_dirs.dirs[2].len = strlen(android_system_dirs.dirs[2].path); 144 145 android_system_dirs.dirs[3].path = strdup("/oem/app/"); 146 android_system_dirs.dirs[3].len = strlen(android_system_dirs.dirs[3].path); 147 148 return true; 149 } 150 151 } // namespace installd 152 } // namespace android 153
