platform_system_sepolicy/private/untrusted_app_all.te
Nick Kralevich 9be90fb6e1 Revert "Remove execmod support for newer API versions"
We need more time to investigate the effect that this change will
have on DRM solutions. Until the investigation is done, revert.

This reverts commit 38d3eca0d4.

Bug: 30146890
Bug: 20013628
Bug: 35323421
Change-Id: I5ad69ef5ee12081ce7fc0a8440712f7f8f77cf16
Test: policy compiles.
2017-03-06 02:50:19 +00:00

93 lines
4.1 KiB
Text

###
### Untrusted_app_all.
###
### This file defines the rules shared by all untrusted app domains.
### Apps are labeled based on mac_permissions.xml (maps signer and
### optionally package name to seinfo value) and seapp_contexts (maps UID
### and optionally seinfo value to domain for process and type for data
### directory). The untrusted_app_all attribute is assigned to all default
### seapp_contexts for any app with UID between APP_AID (10000)
### and AID_ISOLATED_START (99000) if the app has no specific seinfo
### value as determined from mac_permissions.xml. In current AOSP, this
### attribute is assigned to all non-system apps as well as to any system apps
### that are not signed by the platform key. To move
### a system app into a specific domain, add a signer entry for it to
### mac_permissions.xml and assign it one of the pre-existing seinfo values
### or define and use a new seinfo value in both mac_permissions.xml and
### seapp_contexts.
###
# Legacy text relocations
allow untrusted_app_all apk_data_file:file execmod;
# Some apps ship with shared libraries and binaries that they write out
# to their sandbox directory and then execute.
allow untrusted_app_all app_data_file:file { rx_file_perms execmod };
# ASEC
allow untrusted_app_all asec_apk_file:file r_file_perms;
allow untrusted_app_all asec_apk_file:dir r_dir_perms;
# Execute libs in asec containers.
allow untrusted_app_all asec_public_file:file { execute execmod };
# Used by Finsky / Android "Verify Apps" functionality when
# running "adb install foo.apk".
# TODO: Long term, we don't want apps probing into shell data files.
# Figure out a way to remove these rules.
allow untrusted_app_all shell_data_file:file r_file_perms;
allow untrusted_app_all shell_data_file:dir r_dir_perms;
# Read and write system app data files passed over Binder.
# Motivating case was /data/data/com.android.settings/cache/*.jpg for
# cropping or taking user photos.
allow untrusted_app_all system_app_data_file:file { read write getattr };
#
# Rules migrated from old app domains coalesced into untrusted_app.
# This includes what used to be media_app, shared_app, and release_app.
#
# Access to /data/media.
allow untrusted_app_all media_rw_data_file:dir create_dir_perms;
allow untrusted_app_all media_rw_data_file:file create_file_perms;
# Traverse into /mnt/media_rw for bypassing FUSE daemon
# TODO: narrow this to just MediaProvider
allow untrusted_app_all mnt_media_rw_file:dir search;
# allow cts to query all services
allow untrusted_app_all servicemanager:service_manager list;
allow untrusted_app_all audioserver_service:service_manager find;
allow untrusted_app_all cameraserver_service:service_manager find;
allow untrusted_app_all drmserver_service:service_manager find;
allow untrusted_app_all mediaserver_service:service_manager find;
allow untrusted_app_all mediaextractor_service:service_manager find;
allow untrusted_app_all mediacodec_service:service_manager find;
allow untrusted_app_all mediametrics_service:service_manager find;
allow untrusted_app_all mediadrmserver_service:service_manager find;
allow untrusted_app_all mediacasserver_service:service_manager find;
allow untrusted_app_all nfc_service:service_manager find;
allow untrusted_app_all radio_service:service_manager find;
allow untrusted_app_all surfaceflinger_service:service_manager find;
allow untrusted_app_all app_api_service:service_manager find;
allow untrusted_app_all vr_manager_service:service_manager find;
# Allow GMS core to access perfprofd output, which is stored
# in /data/misc/perfprofd/. GMS core will need to list all
# data stored in that directory to process them one by one.
userdebug_or_eng(`
allow untrusted_app_all perfprofd_data_file:file r_file_perms;
allow untrusted_app_all perfprofd_data_file:dir r_dir_perms;
')
# gdbserver for ndk-gdb ptrace attaches to app process.
allow untrusted_app_all self:process ptrace;
# Cts: HwRngTest
allow untrusted_app_all sysfs_hwrandom:dir search;
allow untrusted_app_all sysfs_hwrandom:file r_file_perms;
# Allow apps to view preloaded content
allow untrusted_app_all preloads_data_file:dir r_dir_perms;
allow untrusted_app_all preloads_data_file:file r_file_perms;