5e37271df8
system_file_type is a new attribute used to identify files which exist on the /system partition. It's useful for allow rules in init, which are based off of a blacklist of writable files. Additionally, it's useful for constructing neverallow rules to prevent regressions. Additionally, add commented out tests which enforce that all files on the /system partition have the system_file_type attribute. These tests will be uncommented in a future change after all the device-specific policies are cleaned up. Test: Device boots and no obvious problems. Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
33 lines
1.1 KiB
Text
33 lines
1.1 KiB
Text
# mediadrmserver - mediadrm daemon
|
|
type mediadrmserver, domain;
|
|
type mediadrmserver_exec, system_file_type, exec_type, file_type;
|
|
|
|
typeattribute mediadrmserver mlstrustedsubject;
|
|
|
|
net_domain(mediadrmserver)
|
|
binder_use(mediadrmserver)
|
|
binder_call(mediadrmserver, binderservicedomain)
|
|
binder_call(mediadrmserver, appdomain)
|
|
binder_service(mediadrmserver)
|
|
hal_client_domain(mediadrmserver, hal_drm)
|
|
|
|
add_service(mediadrmserver, mediadrmserver_service)
|
|
allow mediadrmserver mediaserver_service:service_manager find;
|
|
allow mediadrmserver mediametrics_service:service_manager find;
|
|
allow mediadrmserver processinfo_service:service_manager find;
|
|
allow mediadrmserver surfaceflinger_service:service_manager find;
|
|
allow mediadrmserver system_file:dir r_dir_perms;
|
|
|
|
# TODO(b/80317992): remove
|
|
binder_call(mediadrmserver, hal_omx_server)
|
|
|
|
###
|
|
### neverallow rules
|
|
###
|
|
|
|
# mediadrmserver should never execute any executable without a
|
|
# domain transition
|
|
neverallow mediadrmserver { file_type fs_type }:file execute_no_trans;
|
|
|
|
# do not allow privileged socket ioctl commands
|
|
neverallowxperm mediadrmserver domain:{ rawip_socket tcp_socket udp_socket } ioctl priv_sock_ioctls;
|