platform_system_sepolicy/microdroid/system/private/hwservicemanager.te
Inseob Kim 5ee61a7628 microdroid: Narrow property permissions
microdroid's domains have been able to read/write any properties. That's
just for convenience while bringing up microdroid. This cleans up such
global permission and grants minimal access.

Bug: 194447534
Test: atest MicrodroidHostTestCases ComposHostTestCases
Test: run microdroid demo app
Change-Id: I09ce1174d4af9c228b788a522a6ab845cafd4505
2021-09-23 17:23:28 +09:00

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928 B
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typeattribute hwservicemanager coredomain;
init_daemon_domain(hwservicemanager)
allow hwservicemanager vendor_configs_file:file { open getattr };
# Note that we do not use the binder_* macros here.
# hwservicemanager provides name service (aka context manager)
# for hwbinder.
# Additionally, it initiates binder IPC calls to
# clients who request service notifications. The permission
# to do this is granted in the hwbinder_use macro.
allow hwservicemanager self:binder set_context_mgr;
# Scan through /system/lib64/hw looking for installed HALs
allow hwservicemanager system_file:dir r_dir_perms;
# Read hwservice_contexts
allow hwservicemanager hwservice_contexts_file:file r_file_perms;
# Check SELinux permissions.
selinux_check_access(hwservicemanager)
add_hwservice(hwservicemanager, hidl_manager_hwservice)
add_hwservice(hwservicemanager, hidl_token_hwservice)
set_prop(hwservicemanager, hwservicemanager_prop)