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