platform_system_sepolicy/public/dex2oat.te
Andreas Gampe bddd189394 Sepolicy: Fix new access from the linker for postinstall
The linker now requires getattr rights for the filesystem. Otherwise
linking otapreopt and patchoat/dex2oat will fail.

Bug: 37776530
Test: m
Test: manual OTA
Change-Id: I1351fbfa101beca4ba80f84b0dd9dbcabe2c9d39
2017-04-28 17:34:41 -07:00

66 lines
2.4 KiB
Text

# dex2oat
type dex2oat, domain, domain_deprecated;
type dex2oat_exec, 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 };
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;
# 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;
allow dex2oat unlabeled:file read;
allow dex2oat oemfs:file read;
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 };
# 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:filesystem getattr;
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;