1 /* 2 ** 3 ** Copyright 2008, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #ifndef UTILS_H_ 19 #define UTILS_H_ 20 21 #include <string> 22 #include <vector> 23 24 #include <dirent.h> 25 #include <inttypes.h> 26 #include <unistd.h> 27 #include <utime.h> 28 29 #include <cutils/multiuser.h> 30 31 #include <installd_constants.h> 32 33 #define MEASURE_DEBUG 0 34 #define FIXUP_DEBUG 0 35 36 #define BYPASS_QUOTA 0 37 #define BYPASS_SDCARDFS 0 38 39 namespace android { 40 namespace installd { 41 42 struct dir_rec_t; 43 44 constexpr const char* kXattrInodeCache = "user.inode_cache"; 45 constexpr const char* kXattrInodeCodeCache = "user.inode_code_cache"; 46 constexpr const char* kXattrCacheGroup = "user.cache_group"; 47 constexpr const char* kXattrCacheTombstone = "user.cache_tombstone"; 48 49 int create_pkg_path(char path[PKG_PATH_MAX], 50 const char *pkgname, 51 const char *postfix, 52 userid_t userid); 53 54 std::string create_data_path(const char* volume_uuid); 55 56 std::string create_data_app_path(const char* volume_uuid); 57 std::string create_data_app_package_path(const char* volume_uuid, const char* package_name); 58 59 std::string create_data_user_ce_path(const char* volume_uuid, userid_t userid); 60 std::string create_data_user_de_path(const char* volume_uuid, userid_t userid); 61 62 std::string create_data_user_ce_package_path(const char* volume_uuid, 63 userid_t user, const char* package_name); 64 std::string create_data_user_ce_package_path(const char* volume_uuid, 65 userid_t user, const char* package_name, ino_t ce_data_inode); 66 std::string create_data_user_de_package_path(const char* volume_uuid, 67 userid_t user, const char* package_name); 68 69 std::string create_data_media_path(const char* volume_uuid, userid_t userid); 70 std::string create_data_media_obb_path(const char* volume_uuid, const char* package_name); 71 std::string create_data_media_package_path(const char* volume_uuid, userid_t userid, 72 const char* data_type, const char* package_name); 73 74 std::string create_data_misc_legacy_path(userid_t userid); 75 76 std::string create_data_dalvik_cache_path(); 77 78 std::string create_primary_cur_profile_dir_path(userid_t userid); 79 std::string create_primary_current_profile_package_dir_path( 80 userid_t user, const std::string& package_name); 81 82 std::string create_primary_ref_profile_dir_path(); 83 std::string create_primary_reference_profile_package_dir_path(const std::string& package_name); 84 85 std::string create_current_profile_path( 86 userid_t user, const std::string& package_name, bool is_secondary_dex); 87 std::string create_reference_profile_path( 88 const std::string& package_name, bool is_secondary_dex); 89 90 std::vector<userid_t> get_known_users(const char* volume_uuid); 91 92 int calculate_tree_size(const std::string& path, int64_t* size, 93 int32_t include_gid = -1, int32_t exclude_gid = -1, bool exclude_apps = false); 94 95 int create_user_config_path(char path[PKG_PATH_MAX], userid_t userid); 96 97 int create_move_path(char path[PKG_PATH_MAX], 98 const char* pkgname, 99 const char* leaf, 100 userid_t userid); 101 102 bool is_valid_filename(const std::string& name); 103 bool is_valid_package_name(const std::string& packageName); 104 105 int delete_dir_contents(const std::string& pathname, bool ignore_if_missing = false); 106 int delete_dir_contents_and_dir(const std::string& pathname, bool ignore_if_missing = false); 107 108 int delete_dir_contents(const char *pathname, 109 int also_delete_dir, 110 int (*exclusion_predicate)(const char *name, const int is_dir), 111 bool ignore_if_missing = false); 112 113 int delete_dir_contents_fd(int dfd, const char *name); 114 115 int copy_dir_files(const char *srcname, const char *dstname, uid_t owner, gid_t group); 116 117 int64_t data_disk_free(const std::string& data_path); 118 119 int get_path_inode(const std::string& path, ino_t *inode); 120 121 int write_path_inode(const std::string& parent, const char* name, const char* inode_xattr); 122 std::string read_path_inode(const std::string& parent, const char* name, const char* inode_xattr); 123 124 int validate_system_app_path(const char* path); 125 bool validate_secondary_dex_path(const std::string& pkgname, const std::string& dex_path, 126 const char* volume_uuid, int uid, int storage_flag); 127 128 int get_path_from_env(dir_rec_t* rec, const char* var); 129 130 int get_path_from_string(dir_rec_t* rec, const char* path); 131 132 int copy_and_append(dir_rec_t* dst, const dir_rec_t* src, const char* suffix); 133 134 int validate_apk_path(const char *path); 135 int validate_apk_path_subdirs(const char *path); 136 137 int append_and_increment(char** dst, const char* src, size_t* dst_size); 138 139 char *build_string2(const char *s1, const char *s2); 140 char *build_string3(const char *s1, const char *s2, const char *s3); 141 142 int ensure_config_user_dirs(userid_t userid); 143 144 int wait_child(pid_t pid); 145 146 int prepare_app_cache_dir(const std::string& parent, const char* name, mode_t target_mode, 147 uid_t uid, gid_t gid); 148 149 } // namespace installd 150 } // namespace android 151 152 #endif // UTILS_H_ 153