android_system_sepolicy/public/recovery_persist.te

# android recovery persistent log manager
type recovery_persist, domain;
type recovery_persist_exec, system_file_type, exec_type, file_type;

allow recovery_persist pstorefs:dir search;
allow recovery_persist pstorefs:file r_file_perms;

allow recovery_persist recovery_data_file:file create_file_perms;
allow recovery_persist recovery_data_file:dir create_dir_perms;

allow recovery_persist cache_file:dir search;
allow recovery_persist cache_file:lnk_file read;
allow recovery_persist cache_recovery_file:dir rw_dir_perms;
allow recovery_persist cache_recovery_file:file { r_file_perms unlink };

###
### Neverallow rules
###
### recovery_persist should NEVER do any of this

# Block device access.
neverallow recovery_persist dev_type:blk_file { read write };

# ptrace any other app
neverallow recovery_persist domain:process ptrace;

# Write to /system.
neverallow recovery_persist system_file_type:dir_file_class_set write;

# Write to files in /data/data
neverallow recovery_persist { app_data_file_type system_data_file }:dir_file_class_set write;