private/prefetch.te

type prefetch_exec, exec_type, file_type, system_file_type;

init_daemon_domain(prefetch)

# Allow prefetch to start recording by enabling tracing event under
# /sys/kernel/tracing/events/filemap/mm_filemap_add_to_page_cache
allow prefetch debugfs_tracing_instances:dir create_dir_perms;
allow prefetch debugfs_tracing_instances:file rw_file_perms;

# Allow to read/write/create/delete to storage prefetch record files
allow prefetch metadata_file:dir search;
allow prefetch prefetch_metadata_file:dir rw_dir_perms;
allow prefetch prefetch_metadata_file:file create_file_perms;

get_prop(prefetch, prefetch_boot_prop);
set_prop(prefetch, prefetch_service_prop);

# Disallow other domains controlling prefetch service.
neverallow {
  domain
  -init
  -shell
} ctl_prefetch_prop:property_service set;

# Allow rootfs so prefetch can walk through directory tree and
# create a map of inodes -> file path.
allow prefetch rootfs:dir { open read search getattr };

# Ignore denies of reading files in /product/etc/selinux/
dontaudit prefetch file_contexts_file:file r_file_perms;
dontaudit prefetch hwservice_contexts_file:file r_file_perms;
dontaudit prefetch keystore2_key_contexts_file:file r_file_perms;
dontaudit prefetch mac_perms_file:file r_file_perms;
dontaudit prefetch property_contexts_file:file r_file_perms;
dontaudit prefetch seapp_contexts_file:file r_file_perms;
dontaudit prefetch service_contexts_file:file r_file_perms;
dontaudit prefetch tee_service_contexts_file:file r_file_perms;