platform_system_sepolicy/isolated_app.te
Jeff Vander Stoep d22987b4da Create attribute for moving perms out of domain
Motivation: Domain is overly permissive. Start removing permissions
from domain and assign them to the domain_deprecated attribute.
Domain_deprecated and domain can initially be assigned to all
domains. The goal is to not assign domain_deprecated to new domains
and to start removing domain_deprecated where it is not required or
reassigning the appropriate permissions to the inheriting domain
when necessary.

Bug: 25433265
Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c
2015-11-03 23:11:11 +00:00

49 lines
1.6 KiB
Text

###
### Services with isolatedProcess=true in their manifest.
###
### This file defines the rules for isolated apps. An "isolated
### app" is an APP with UID between AID_ISOLATED_START (99000)
### and AID_ISOLATED_END (99999).
###
### isolated_app includes all the appdomain rules, plus the
### additional following rules:
###
type isolated_app, domain, domain_deprecated;
app_domain(isolated_app)
# Access already open app data files received over Binder or local socket IPC.
allow isolated_app app_data_file:file { read write getattr lock };
allow isolated_app activity_service:service_manager find;
allow isolated_app display_service:service_manager find;
# Google Breakpad (crash reporter for Chrome) relies on ptrace
# functionality. Without the ability to ptrace, the crash reporter
# tool is broken.
# b/20150694
# https://code.google.com/p/chromium/issues/detail?id=475270
allow isolated_app self:process ptrace;
#####
##### Neverallow
#####
# Isolated apps should not directly open app data files themselves.
neverallow isolated_app app_data_file:file open;
# b/17487348
# Isolated apps can only access two services,
# activity_service and display_service
neverallow isolated_app {
service_manager_type
-activity_service
-display_service
}:service_manager find;
# Isolated apps shouldn't be able to access the driver directly.
neverallow isolated_app gpu_device:chr_file { rw_file_perms execute };
# Do not allow isolated_app access to /cache
neverallow isolated_app cache_file:dir ~{ r_dir_perms };
neverallow isolated_app cache_file:file ~{ read getattr };