platform_system_sepolicy/public/mediadrmserver.te
Ray Essick 391854000a rename mediaanalytics->mediametrics, wider access
reflect the change from "mediaanalytics" to "mediametrics"

Also incorporates a broader access to the service -- e.g. anyone.
This reflects that a number of metrics submissions come from application
space and not only from our controlled, trusted media related processes.
The metrics service (in another commit) checks on the source of any
incoming metrics data and limits what is allowed from unprivileged
clients.

Bug: 34615027
Test: clean build, service running and accessible
Change-Id: I657c343ea1faed536c3ee1940f1e7a178e813a42
2017-01-24 16:57:19 -08:00

70 lines
2.5 KiB
Text

# mediadrmserver - mediadrm daemon
type mediadrmserver, domain;
type mediadrmserver_exec, exec_type, file_type;
typeattribute mediadrmserver mlstrustedsubject;
net_domain(mediadrmserver)
binder_use(mediadrmserver)
binder_call(mediadrmserver, binderservicedomain)
binder_call(mediadrmserver, appdomain)
binder_service(mediadrmserver)
# Required by Widevine DRM (b/22990512)
allow mediadrmserver self:process execmem;
# System file accesses.
allow mediadrmserver system_file:dir r_dir_perms;
allow mediadrmserver system_file:file r_file_perms;
allow mediadrmserver system_file:lnk_file r_file_perms;
# Read files already opened under /data.
allow mediadrmserver system_data_file:dir { search getattr };
allow mediadrmserver system_data_file:file { getattr read };
allow mediadrmserver system_data_file:lnk_file r_file_perms;
# Read access to pseudo filesystems.
r_dir_file(mediadrmserver, cgroup)
allow mediadrmserver cgroup:dir { search write };
allow mediadrmserver cgroup:file w_file_perms;
# Allow access to ion memory allocation device
allow mediadrmserver ion_device:chr_file rw_file_perms;
allow mediadrmserver hal_graphics_allocator:fd use;
# Allow access to app_data and media_data_files
allow mediadrmserver media_data_file:dir create_dir_perms;
allow mediadrmserver media_data_file:file create_file_perms;
allow mediadrmserver media_data_file:file { getattr read };
allow mediadrmserver tee_device:chr_file rw_file_perms;
# XXX Label with a specific type?
allow mediadrmserver sysfs:file r_file_perms;
# Connect to tee service.
allow mediadrmserver tee:unix_stream_socket connectto;
allow mediadrmserver mediadrmserver_service:service_manager { add find };
allow mediadrmserver mediaserver_service:service_manager { add find };
allow mediadrmserver mediametrics_service:service_manager find;
allow mediadrmserver processinfo_service:service_manager find;
allow mediadrmserver surfaceflinger_service:service_manager find;
# only allow unprivileged socket ioctl commands
allowxperm mediadrmserver self:{ rawip_socket tcp_socket udp_socket }
ioctl { unpriv_sock_ioctls unpriv_tty_ioctls };
# Permit reading device's serial number from system properties
get_prop(mediadrmserver, serialno_prop)
###
### 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;