1# dex2oat 2type dex2oat, domain, coredomain, artd_subprocess_type; 3type dex2oat_exec, system_file_type, exec_type, file_type; 4 5userfaultfd_use(dex2oat) 6 7r_dir_file(dex2oat, apk_data_file) 8# Access to /vendor/app 9r_dir_file(dex2oat, vendor_app_file) 10# Access /vendor/framework 11allow dex2oat vendor_framework_file:dir { getattr search }; 12allow dex2oat vendor_framework_file:file { getattr open read map }; 13# Access /vendor/overlay 14r_dir_file(dex2oat, vendor_overlay_file); 15# Vendor overlay can be found in vendor apex 16allow dex2oat vendor_apex_metadata_file:dir { getattr search }; 17 18allow dex2oat tmpfs:file { read getattr map }; 19 20r_dir_file(dex2oat, dalvikcache_data_file) 21allow dex2oat dalvikcache_data_file:file write; 22 23# Acquire advisory lock on /system/framework/arm/* 24allow dex2oat system_file:file lock; 25allow dex2oat postinstall_file:file lock; 26 27# Read already open asec_apk_file file descriptors passed by installd. 28# Also allow reading unlabeled files, to allow for upgrading forward 29# locked APKs. 30allow dex2oat asec_apk_file:file { read map }; 31allow dex2oat unlabeled:file { read map }; 32allow dex2oat oemfs:file { read map }; 33allow dex2oat apk_tmp_file:dir search; 34allow dex2oat apk_tmp_file:file r_file_perms; 35allow dex2oat user_profile_data_file:file { getattr read lock map }; 36 37# Allow dex2oat to compile app's secondary dex files which were reported back to 38# the framework. 39allow dex2oat { privapp_data_file app_data_file }:file { getattr read write lock map }; 40 41# Allow dex2oat to find files and directories under /data/misc/apexdata/com.android.runtime. 42allow dex2oat apex_module_data_file:dir search; 43 44# Allow dex2oat to use devpts passed from odsign. 45allow dex2oat odsign_devpts:chr_file { read write }; 46 47# Allow dex2oat to write to file descriptors from odrefresh for files 48# in the staging area. 49allow dex2oat apex_art_staging_data_file:dir r_dir_perms; 50allow dex2oat apex_art_staging_data_file:file { getattr map read write unlink }; 51 52# Allow dex2oat to read artifacts from odrefresh. 53allow dex2oat apex_art_data_file:dir r_dir_perms; 54allow dex2oat apex_art_data_file:file r_file_perms; 55 56# Allow dex2oat to read runtime native flag properties. 57get_prop(dex2oat, device_config_runtime_native_prop) 58get_prop(dex2oat, device_config_runtime_native_boot_prop) 59 60# Allow dex2oat to read /apex/apex-info-list.xml 61allow dex2oat apex_info_file:file r_file_perms; 62 63# Allow dex2oat to use file descriptors passed from privileged programs. 64allow dex2oat { artd installd odrefresh odsign }:fd use; 65 66# Allow dex2oat to read the /proc filesystem for CPU features, etc. 67allow dex2oat proc_filesystems:file r_file_perms; 68 69################## 70# A/B OTA Dexopt # 71################## 72 73# Allow dex2oat to use file descriptors from otapreopt. 74allow dex2oat postinstall_dexopt:fd use; 75 76# Allow dex2oat to read files under /postinstall (e.g. APKs under /system, /system/bin/linker). 77allow dex2oat postinstall_file:dir r_dir_perms; 78allow dex2oat postinstall_file:filesystem getattr; 79allow dex2oat postinstall_file:lnk_file { getattr read }; 80allow dex2oat postinstall_file:file read; 81# Allow dex2oat to use libraries under /postinstall/system (e.g. /system/lib/libc.so). 82# TODO(b/120266448): Remove when Bionic libraries are part of the Runtime APEX. 83allow dex2oat postinstall_file:file { execute getattr open }; 84 85# Allow dex2oat access to /postinstall/apex. 86allow dex2oat postinstall_apex_mnt_dir:dir { getattr search }; 87allow dex2oat postinstall_apex_mnt_dir:{ file lnk_file } r_file_perms; 88 89# Allow dex2oat access to files in /data/ota. 90allow dex2oat ota_data_file:dir ra_dir_perms; 91allow dex2oat ota_data_file:file r_file_perms; 92 93# Create and read symlinks in /data/ota/dalvik-cache. This is required for PIC mode boot images, 94# where the oat file is symlinked to the original file in /system. 95allow dex2oat ota_data_file:lnk_file { create read }; 96 97# It would be nice to tie this down, but currently, because of how images are written, we can't 98# pass file descriptors for the preopted boot image to dex2oat. So dex2oat needs to be able to 99# create them itself (and make them world-readable). 100allow dex2oat ota_data_file:file { create w_file_perms setattr }; 101 102############### 103# APEX Update # 104############### 105 106# /dev/zero is inherited. 107allow dex2oat apexd:fd use; 108 109# Allow dex2oat to use file descriptors from preinstall. 110 111############## 112# Neverallow # 113############## 114 115neverallow dex2oat app_data_file_type:notdevfile_class_set open; 116