android_system_sepolicy/public/dex2oat.te
Chad Brubaker 6f090f6911 Label ephemeral APKs and handle their install/uninstall
Fixes: 32061937
Test: install/uninstall and verified no denials
Change-Id: I487727b6b32b1a0fb06ce66ed6dd69db43c8d536
2016-11-12 00:27:28 +00:00

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# dex2oat
type dex2oat, domain, domain_deprecated;
type dex2oat_exec, exec_type, file_type;
r_dir_file(dex2oat, {apk_data_file ephemeral_apk_data_file})
allow dex2oat tmpfs:file { read getattr };
# allow access to the interpreter
allow dex2oat libart_file:file { execute read open 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 ephemeral_apk_tmp_file}:file read;
allow dex2oat user_profile_data_file:file { getattr read 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 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;