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Tao Bao authored
update_engine needs to access bootctrl_block_device to get and set the slot to boot. avc: denied { write } for name="mmcblk0boot1" dev="tmpfs" ino=1266 scontext=u:r:update_engine:s0 tcontext=u:object_r:bootctrl_block_device:s0 tclass=blk_file avc: denied { open } for path="/dev/block/mmcblk0boot1" dev="tmpfs" ino=1266 scontext=u:r:update_engine:s0 tcontext=u:object_r:bootctrl_block_device:s0 tclass=blk_file Also track the name change of the native binder service. avc: denied { add } for service=android.os.UpdateEngineService pid=210 uid=0 scontext=u:r:update_engine:s0 tcontext=u:object_r:default_android_service:s0 tclass=service_manager Bug: 27106053 Change-Id: Idbfef18578489db33fead0721e8f26d63db5ce09 (cherry picked from commit 3ec34ceb)79db4e47
update_engine.te 1.48 KiB
# Domain for update_engine daemon.
type update_engine, domain, domain_deprecated;
type update_engine_exec, exec_type, file_type;
type update_engine_data_file, file_type, data_file_type;
init_daemon_domain(update_engine);
net_domain(update_engine);
# Following permissions are needed for update_engine.
allow update_engine self:process { setsched };
allow update_engine self:capability { fowner sys_admin };
allow update_engine kmsg_device:chr_file w_file_perms;
allow update_engine update_engine_exec:file rx_file_perms;
wakelock_use(update_engine);
# 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 update_engine to reach block devices in /dev/block.
allow update_engine block_device:dir search;
# Allow read/write on system and boot partitions.
allow update_engine boot_block_device:blk_file rw_file_perms;
allow update_engine system_block_device:blk_file rw_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)
allow update_engine update_engine_service:service_manager { add };
# Allow update_engine to call the callback function provided by priv_app.
binder_call(update_engine, priv_app)
# Allow read/write bootctrl block device.
allow update_engine bootctrl_block_device:blk_file rw_file_perms;