platform_system_sepolicy/public/dex2oat.te
Andreas Gampe 3cc71b09d6 Sepolicy: Allow postinstall to read links
Certain libraries may actually be links. Allow OTA dexopt to read
those links.

Bug: 25612095
Test: m
Change-Id: Iafdb899a750bd8d1ab56e5f6dbc09d836d5440ed
2017-03-17 10:08:52 -07:00

56 lines
2 KiB
Text

# dex2oat
type dex2oat, domain, domain_deprecated;
type dex2oat_exec, exec_type, file_type;
r_dir_file(dex2oat, apk_data_file)
allow dex2oat tmpfs:file { read getattr };
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;
# 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;
allow dex2oat unlabeled:file read;
allow dex2oat oemfs:file read;
allow dex2oat apk_tmp_file:file read;
allow dex2oat user_profile_data_file:file { getattr read lock };
# Allow dex2oat to compile app's secondary dex files which were reported back to
# the framework.
allow dex2oat app_data_file:file { getattr read write lock };
##################
# 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:lnk_file read;
# 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 };
##############
# Neverallow #
##############
neverallow dex2oat app_data_file:notdevfile_class_set open;