platform_system_sepolicy/private/dex2oat.te
Andreas Gampe ae127d8340 Sepolicy: Add base runtime APEX preinstall policies
Add art_apex_preinstall domain that is allowed to create AoT
artifacts in /data/ota.

Bug: 125474642
Test: m
Change-Id: Ia091d8df34c4be4f84c2052d3c333a0e36bcb036
2019-02-28 05:12:56 -08:00

85 lines
3.2 KiB
Text

# dex2oat
type dex2oat, domain, coredomain;
type dex2oat_exec, system_file_type, exec_type, file_type;
r_dir_file(dex2oat, apk_data_file)
# Access to /vendor/app
r_dir_file(dex2oat, vendor_app_file)
# Access /vendor/framework
allow dex2oat vendor_framework_file:dir { getattr search };
allow dex2oat vendor_framework_file:file { getattr open read map };
allow dex2oat tmpfs:file { read getattr map };
r_dir_file(dex2oat, dalvikcache_data_file)
allow dex2oat dalvikcache_data_file:file write;
# Read symlinks in /data/dalvik-cache. This is required for PIC mode boot images, where
# the oat file is symlinked to the original file in /system.
allow dex2oat dalvikcache_data_file:lnk_file read;
allow dex2oat installd:fd use;
# Acquire advisory lock on /system/framework/arm/*
allow dex2oat system_file:file lock;
# Read already open asec_apk_file file descriptors passed by installd.
# Also allow reading unlabeled files, to allow for upgrading forward
# locked APKs.
allow dex2oat asec_apk_file:file { read map };
allow dex2oat unlabeled:file { read map };
allow dex2oat oemfs:file { read map };
allow dex2oat apk_tmp_file:dir search;
allow dex2oat apk_tmp_file:file r_file_perms;
allow dex2oat user_profile_data_file:file { getattr read lock map };
# Allow dex2oat to compile app's secondary dex files which were reported back to
# the framework.
allow dex2oat { privapp_data_file app_data_file }:file { getattr read write lock map };
##################
# A/B OTA Dexopt #
##################
# Allow dex2oat to use file descriptors from otapreopt.
allow dex2oat postinstall_dexopt:fd use;
allow dex2oat postinstall_file:dir { getattr search };
allow dex2oat postinstall_file:filesystem getattr;
allow dex2oat postinstall_file:lnk_file { getattr read };
# Allow dex2oat to read files under /postinstall (e.g. APKs under /system, /system/bin/linker).
allow dex2oat postinstall_file:file read;
# Allow dex2oat to use libraries under /postinstall/system (e.g. /system/lib/libc.so).
# TODO(b/120266448): Remove when Bionic libraries are part of the Runtime APEX.
allow dex2oat postinstall_file:file { execute getattr open };
# Allow dex2oat access to /postinstall/apex.
allow dex2oat postinstall_apex_mnt_dir:dir { getattr search };
# Allow dex2oat access to files in /data/ota.
allow dex2oat ota_data_file:dir ra_dir_perms;
allow dex2oat ota_data_file:file r_file_perms;
# Create and read symlinks in /data/ota/dalvik-cache. This is required for PIC mode boot images,
# where the oat file is symlinked to the original file in /system.
allow dex2oat ota_data_file:lnk_file { create read };
# It would be nice to tie this down, but currently, because of how images are written, we can't
# pass file descriptors for the preopted boot image to dex2oat. So dex2oat needs to be able to
# create them itself (and make them world-readable).
allow dex2oat ota_data_file:file { create w_file_perms setattr };
###############
# APEX Update #
###############
# /dev/zero is inherited.
allow dex2oat apexd:fd use;
# Allow dex2oat to use file descriptors from preinstall.
allow dex2oat art_apex_preinstall:fd use;
##############
# Neverallow #
##############
neverallow dex2oat { privapp_data_file app_data_file }:notdevfile_class_set open;