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 #include <stdlib.h> 18 #include <string.h> 19 20 #include <cutils/log.h> // TODO: Move everything to base::logging. 21 22 #include <globals.h> 23 #include <installd_constants.h> 24 #include <utils.h> 25 26 #ifndef LOG_TAG 27 #define LOG_TAG "installd" 28 #endif 29 30 namespace android { 31 namespace installd { 32 33 static constexpr const char* APP_SUBDIR = "app/"; // sub-directory under ANDROID_DATA 34 35 static constexpr const char* PRIV_APP_SUBDIR = "priv-app/"; // sub-directory under ANDROID_DATA 36 37 static constexpr const char* EPHEMERAL_APP_SUBDIR = "app-ephemeral/"; // sub-directory under 38 // ANDROID_DATA 39 40 static constexpr const char* APP_LIB_SUBDIR = "app-lib/"; // sub-directory under ANDROID_DATA 41 42 static constexpr const char* MEDIA_SUBDIR = "media/"; // sub-directory under ANDROID_DATA 43 44 static constexpr const char* PROFILES_SUBDIR = "misc/profiles"; // sub-directory under ANDROID_DATA 45 46 static constexpr const char* PRIVATE_APP_SUBDIR = "app-private/"; // sub-directory under 47 // ANDROID_DATA 48 49 /* Directory records that are used in execution of commands. */ 50 dir_rec_t android_app_dir; 51 dir_rec_t android_app_ephemeral_dir; 52 dir_rec_t android_app_lib_dir; 53 dir_rec_t android_app_private_dir; 54 dir_rec_t android_asec_dir; 55 dir_rec_t android_data_dir; 56 dir_rec_t android_media_dir; 57 dir_rec_t android_mnt_expand_dir; 58 dir_rec_t android_profiles_dir; 59 60 dir_rec_array_t android_system_dirs; 61 62 /** 63 * Initialize all the global variables that are used elsewhere. Returns 0 upon 64 * success and -1 on error. 65 */ 66 void free_globals() { 67 size_t i; 68 69 for (i = 0; i < android_system_dirs.count; i++) { 70 if (android_system_dirs.dirs[i].path != NULL) { 71 free(android_system_dirs.dirs[i].path); 72 } 73 } 74 75 free(android_system_dirs.dirs); 76 } 77 78 bool init_globals_from_data_and_root(const char* data, const char* root) { 79 // Get the android data directory. 80 if (get_path_from_string(&android_data_dir, data) < 0) { 81 return false; 82 } 83 84 // Get the android app directory. 85 if (copy_and_append(&android_app_dir, &android_data_dir, APP_SUBDIR) < 0) { 86 return false; 87 } 88 89 // Get the android protected app directory. 90 if (copy_and_append(&android_app_private_dir, &android_data_dir, PRIVATE_APP_SUBDIR) < 0) { 91 return false; 92 } 93 94 // Get the android ephemeral app directory. 95 if (copy_and_append(&android_app_ephemeral_dir, &android_data_dir, EPHEMERAL_APP_SUBDIR) < 0) { 96 return false; 97 } 98 99 // Get the android app native library directory. 100 if (copy_and_append(&android_app_lib_dir, &android_data_dir, APP_LIB_SUBDIR) < 0) { 101 return false; 102 } 103 104 // Get the sd-card ASEC mount point. 105 if (get_path_from_env(&android_asec_dir, ASEC_MOUNTPOINT_ENV_NAME) < 0) { 106 return false; 107 } 108 109 // Get the android media directory. 110 if (copy_and_append(&android_media_dir, &android_data_dir, MEDIA_SUBDIR) < 0) { 111 return false; 112 } 113 114 // Get the android external app directory. 115 if (get_path_from_string(&android_mnt_expand_dir, "/mnt/expand/") < 0) { 116 return false; 117 } 118 119 // Get the android profiles directory. 120 if (copy_and_append(&android_profiles_dir, &android_data_dir, PROFILES_SUBDIR) < 0) { 121 return false; 122 } 123 124 // Take note of the system and vendor directories. 125 android_system_dirs.count = 4; 126 127 android_system_dirs.dirs = (dir_rec_t*) calloc(android_system_dirs.count, sizeof(dir_rec_t)); 128 if (android_system_dirs.dirs == NULL) { 129 ALOGE("Couldn't allocate array for dirs; aborting\n"); 130 return false; 131 } 132 133 dir_rec_t android_root_dir; 134 if (get_path_from_string(&android_root_dir, root) < 0) { 135 return false; 136 } 137 138 android_system_dirs.dirs[0].path = build_string2(android_root_dir.path, APP_SUBDIR); 139 android_system_dirs.dirs[0].len = strlen(android_system_dirs.dirs[0].path); 140 141 android_system_dirs.dirs[1].path = build_string2(android_root_dir.path, PRIV_APP_SUBDIR); 142 android_system_dirs.dirs[1].len = strlen(android_system_dirs.dirs[1].path); 143 144 android_system_dirs.dirs[2].path = strdup("/vendor/app/"); 145 android_system_dirs.dirs[2].len = strlen(android_system_dirs.dirs[2].path); 146 147 android_system_dirs.dirs[3].path = strdup("/oem/app/"); 148 android_system_dirs.dirs[3].len = strlen(android_system_dirs.dirs[3].path); 149 150 return true; 151 } 152 153 } // namespace installd 154 } // namespace android 155
