# perfprofd - perf profile collection daemon
type perfprofd_exec, exec_type, file_type;

userdebug_or_eng(`

  type perfprofd, domain, mlstrustedsubject;

  init_daemon_domain(perfprofd)

  # perfprofd needs to control CPU hot-plug in order to avoid kernel
  # perfevents problems in cases where CPU goes on/off during measurement;
  # this means read access to /sys/devices/system/cpu/possible
  # and read/write access to /sys/devices/system/cpu/cpu*/online
  allow perfprofd sysfs_devices_system_cpu:file rw_file_perms;

  # perfprofd checks for the existence of and then invokes simpleperf;
  # simpleperf retains perfprofd domain after exec
  allow perfprofd system_file:file rx_file_perms;

  # perfprofd reads a config file from /data/data/com.google.android.gms/files
  # opens a file for writing in the same directory
  allow perfprofd app_data_file:file rw_file_perms;
  allow perfprofd app_data_file:dir rw_dir_perms;

  # perfprofd looks for the existence of a semaphore file to determine
  # whether collection is enabled/disabled (where the semphore file is
  # created by some other entity, e.g. gms)
  allow perfprofd app_data_file:dir search;
  allow perfprofd self:capability { dac_override };

  # perfprofd reads profiles from /data/data/..., encodes them,
  # and then dumps the encoded profiles back to /data/data/....
  allow perfprofd app_data_file:dir_file_class_set create_file_perms;

  # perfprofd uses the system log
  read_logd(perfprofd);
  write_logd(perfprofd);

  # simpleperf uses ioctl() to turn on kernel perf events measurements
  allow perfprofd self:capability sys_admin;

  # simpleperf is going to execute "sleep"
  allow perfprofd toolbox_exec:file x_file_perms;

')