| # installer daemon |
| type installd, domain, domain_deprecated; |
| type installd_exec, exec_type, file_type; |
| |
| init_daemon_domain(installd) |
| typeattribute installd mlstrustedsubject; |
| allow installd self:capability { chown dac_override fowner fsetid setgid setuid }; |
| |
| # Allow labeling of files under /data/app/com.example/oat/ |
| allow installd dalvikcache_data_file:dir relabelto; |
| allow installd dalvikcache_data_file:file { relabelto link }; |
| |
| # Allow movement of APK files between volumes |
| allow installd apk_data_file:dir { create_dir_perms relabelfrom }; |
| allow installd apk_data_file:file { create_file_perms relabelfrom link }; |
| allow installd apk_data_file:lnk_file { create read unlink }; |
| |
| allow installd asec_apk_file:file r_file_perms; |
| allow installd apk_tmp_file:file { r_file_perms unlink }; |
| allow installd apk_tmp_file:dir { relabelfrom create_dir_perms }; |
| allow installd oemfs:dir r_dir_perms; |
| allow installd oemfs:file r_file_perms; |
| allow installd cgroup:dir create_dir_perms; |
| allow installd mnt_expand_file:dir { search getattr }; |
| # Check validity of SELinux context before use. |
| selinux_check_context(installd) |
| |
| # Search /data/app-asec and stat files in it. |
| allow installd asec_image_file:dir search; |
| allow installd asec_image_file:file getattr; |
| |
| # Create /data/user and /data/user/0 if necessary. |
| # Also required to initially create /data/data subdirectories |
| # and lib symlinks before the setfilecon call. May want to |
| # move symlink creation after setfilecon in installd. |
| allow installd system_data_file:dir create_dir_perms; |
| allow installd system_data_file:lnk_file { create setattr unlink }; |
| |
| # Upgrade /data/media for multi-user if necessary. |
| allow installd media_rw_data_file:dir create_dir_perms; |
| allow installd media_rw_data_file:file { getattr unlink }; |
| # restorecon new /data/media directory. |
| allow installd system_data_file:dir relabelfrom; |
| allow installd media_rw_data_file:dir relabelto; |
| |
| # Upgrade /data/misc/keychain for multi-user if necessary. |
| allow installd misc_user_data_file:dir create_dir_perms; |
| allow installd misc_user_data_file:file create_file_perms; |
| allow installd keychain_data_file:dir create_dir_perms; |
| allow installd keychain_data_file:file {r_file_perms unlink}; |
| |
| # Create /data/.layout_version.* file |
| type_transition installd system_data_file:file install_data_file; |
| allow installd install_data_file:file create_file_perms; |
| |
| # Create files under /data/dalvik-cache. |
| allow installd dalvikcache_data_file:dir create_dir_perms; |
| allow installd dalvikcache_data_file:file create_file_perms; |
| |
| # Create files under /data/resource-cache. |
| allow installd resourcecache_data_file:dir rw_dir_perms; |
| allow installd resourcecache_data_file:file create_file_perms; |
| |
| # Run dex2oat in its own sandbox. |
| domain_auto_trans(installd, dex2oat_exec, dex2oat) |
| |
| # Run idmap in its own sandbox. |
| domain_auto_trans(installd, idmap_exec, idmap) |
| |
| # Upgrade from unlabeled userdata. |
| # Just need enough to remove and/or relabel it. |
| allow installd unlabeled:dir { getattr search relabelfrom rw_dir_perms rmdir }; |
| allow installd unlabeled:notdevfile_class_set { getattr relabelfrom rename unlink setattr }; |
| # Read pkg.apk file for input during dexopt. |
| allow installd unlabeled:file r_file_perms; |
| |
| # Upgrade from before system_app_data_file was used for system UID apps. |
| # Just need enough to relabel it and to unlink removed package files. |
| # Directory access covered by earlier rule above. |
| allow installd system_data_file:notdevfile_class_set { getattr relabelfrom unlink }; |
| |
| # Manage /data/data subdirectories, including initially labeling them |
| # upon creation via setfilecon or running restorecon_recursive, |
| # setting owner/mode, creating symlinks within them, and deleting them |
| # upon package uninstall. |
| # Types extracted from seapp_contexts type= fields. |
| allow installd { system_app_data_file bluetooth_data_file nfc_data_file radio_data_file shell_data_file app_data_file }:dir { create_dir_perms relabelfrom relabelto }; |
| allow installd { system_app_data_file bluetooth_data_file nfc_data_file radio_data_file shell_data_file app_data_file }:notdevfile_class_set { create_file_perms relabelfrom relabelto }; |
| |
| # Create and use pty created by android_fork_execvp(). |
| allow installd devpts:chr_file rw_file_perms; |
| |
| # execute toybox for app relocation |
| allow installd toolbox_exec:file rx_file_perms; |