platform_system_sepolicy/private/storaged.te

# storaged daemon
type storaged, domain, mlstrustedsubject;
type storaged_exec, exec_type, file_type;

init_daemon_domain(storaged)

# Read access to pseudo filesystems
r_dir_file(storaged, sysfs_type)
r_dir_file(storaged, proc_net)
r_dir_file(storaged, domain)

# Read /proc/uid_io/stats
allow storaged proc_uid_io_stats:file r_file_perms;

allow storaged self:capability { setgid setuid sys_nice sys_ptrace };

userdebug_or_eng(`
  # Read access to debugfs
  allow storaged debugfs_mmc:dir search;
  allow storaged debugfs_mmc:file r_file_perms;
')

# Binder permissions
allow storaged storaged_service:service_manager add;
allow storaged permission_service:service_manager find;

binder_use(storaged)
binder_call(storaged, system_server)

###
### neverallow
###
neverallow storaged domain:process ptrace;