# mediaextractor - multimedia daemon
type mediaextractor, domain, domain_deprecated;
type mediaextractor_exec, exec_type, file_type;

typeattribute mediaextractor mlstrustedsubject;

init_daemon_domain(mediaextractor)

binder_use(mediaextractor)
binder_call(mediaextractor, binderservicedomain)
binder_call(mediaextractor, appdomain)
binder_service(mediaextractor)

allow mediaextractor kernel:system module_request;

# Needed on some devices for playing DRM protected content,
# but seems expected and appropriate for all devices.
unix_socket_connect(mediaextractor, drmserver, drmserver)

allow mediaextractor drmserver_service:service_manager find;
allow mediaextractor mediaextractor_service:service_manager { add find };
allow mediaextractor processinfo_service:service_manager find;

use_drmservice(mediaextractor)
allow mediaextractor drmserver:drmservice {
    consumeRights
    setPlaybackStatus
    openDecryptSession
    closeDecryptSession
    initializeDecryptUnit
    decrypt
    finalizeDecryptUnit
    pread
};

###
### neverallow rules
###

# mediaextractor should never execute any executable without a
# domain transition
neverallow mediaextractor { file_type fs_type }:file execute_no_trans;

# mediaextractor should never need network access. Disallow all sockets
# other than unix sockets i.e. unix_stream_socket and unix_dgram_socket
neverallow mediaextractor domain:{
  socket tcp_socket udp_socket rawip_socket netlink_socket packet_socket
  key_socket appletalk_socket netlink_route_socket netlink_firewall_socket
  netlink_tcpdiag_socket netlink_nflog_socket netlink_xfrm_socket
  netlink_selinux_socket netlink_audit_socket netlink_ip6fw_socket
  netlink_dnrt_socket netlink_kobject_uevent_socket tun_socket
  } *;