9d9c730f1c
Bug: 225745567
Test: Build
Change-Id: I49fb91c7a60fb1e871bdf3553d978bb16c476fd7
Merged-In: I49fb91c7a60fb1e871bdf3553d978bb16c476fd7
(cherry picked from commit f9a00364c8)
78 lines
3 KiB
Text
78 lines
3 KiB
Text
# Domain for update_engine daemon.
|
|
type update_engine, domain, update_engine_common;
|
|
type update_engine_exec, system_file_type, exec_type, file_type;
|
|
|
|
net_domain(update_engine);
|
|
|
|
# Following permissions are needed for update_engine.
|
|
allow update_engine self:process { setsched };
|
|
allow update_engine self:global_capability_class_set { fowner sys_admin };
|
|
# Note: fsetid checks are triggered when creating a file in a directory with
|
|
# the setgid bit set to determine if the file should inherit setgid. In this
|
|
# case, setgid on the file is undesirable so we should just suppress the
|
|
# denial.
|
|
dontaudit update_engine self:global_capability_class_set fsetid;
|
|
|
|
allow update_engine kmsg_device:chr_file { getattr w_file_perms };
|
|
allow update_engine update_engine_exec:file rx_file_perms;
|
|
wakelock_use(update_engine);
|
|
|
|
# Ignore these denials.
|
|
dontaudit update_engine kernel:process setsched;
|
|
dontaudit update_engine self:global_capability_class_set sys_rawio;
|
|
|
|
# Allow using persistent storage in /data/misc/update_engine.
|
|
allow update_engine update_engine_data_file:dir create_dir_perms;
|
|
allow update_engine update_engine_data_file:file create_file_perms;
|
|
|
|
# Allow using persistent storage in /data/misc/update_engine_log.
|
|
allow update_engine update_engine_log_data_file:dir create_dir_perms;
|
|
allow update_engine update_engine_log_data_file:file create_file_perms;
|
|
|
|
# Don't allow kernel module loading, just silence the logs.
|
|
dontaudit update_engine kernel:system module_request;
|
|
|
|
# Register the service to perform Binder IPC.
|
|
binder_use(update_engine)
|
|
add_service(update_engine, update_engine_service)
|
|
add_service(update_engine, update_engine_stable_service)
|
|
|
|
# Allow update_engine to call the callback function provided by priv_app/GMS core.
|
|
binder_call(update_engine, priv_app)
|
|
# b/142672293: No other priv-app should need this rule now that GMS core runs in its own domain.
|
|
userdebug_or_eng(`
|
|
auditallow update_engine priv_app:binder { call transfer };
|
|
auditallow priv_app update_engine:binder transfer;
|
|
auditallow update_engine priv_app:fd use;
|
|
')
|
|
|
|
binder_call(update_engine, gmscore_app)
|
|
|
|
# Allow update_engine to call the callback function provided by system_server.
|
|
binder_call(update_engine, system_server)
|
|
|
|
# Read OTA zip file at /data/ota_package/.
|
|
allow update_engine ota_package_file:file r_file_perms;
|
|
allow update_engine ota_package_file:dir r_dir_perms;
|
|
|
|
# Use Boot Control HAL
|
|
hal_client_domain(update_engine, hal_bootctl)
|
|
|
|
# access /proc/misc
|
|
allow update_engine proc_misc:file r_file_perms;
|
|
|
|
# read directories on /system and /vendor
|
|
allow update_engine system_file:dir r_dir_perms;
|
|
|
|
# Allow ReadDefaultFstab().
|
|
# update_engine tries to determine the parent path for all devices (e.g.
|
|
# /dev/block/by-name) by reading the default fstab and looking for the misc
|
|
# device.
|
|
read_fstab(update_engine)
|
|
|
|
# Allow to write to snapshotctl_log logs.
|
|
# TODO(b/148818798) revert when parent bug is fixed.
|
|
userdebug_or_eng(`
|
|
allow update_engine snapshotctl_log_data_file:dir rw_dir_perms;
|
|
allow update_engine snapshotctl_log_data_file:file create_file_perms;
|
|
')
|