5e37271df8
system_file_type is a new attribute used to identify files which exist on the /system partition. It's useful for allow rules in init, which are based off of a blacklist of writable files. Additionally, it's useful for constructing neverallow rules to prevent regressions. Additionally, add commented out tests which enforce that all files on the /system partition have the system_file_type attribute. These tests will be uncommented in a future change after all the device-specific policies are cleaned up. Test: Device boots and no obvious problems. Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
# service flash_recovery in init.rc
|
|
type install_recovery, domain;
|
|
type install_recovery_exec, system_file_type, exec_type, file_type;
|
|
|
|
allow install_recovery self:global_capability_class_set { dac_override dac_read_search };
|
|
|
|
# /system/bin/install-recovery.sh is a shell script.
|
|
# Needs to execute /system/bin/sh
|
|
allow install_recovery shell_exec:file rx_file_perms;
|
|
|
|
# Execute /system/bin/applypatch
|
|
allow install_recovery system_file:file rx_file_perms;
|
|
not_full_treble(`allow install_recovery vendor_file:file rx_file_perms;')
|
|
|
|
allow install_recovery toolbox_exec:file rx_file_perms;
|
|
|
|
# Update the recovery block device based off a diff of the boot block device
|
|
allow install_recovery block_device:dir search;
|
|
allow install_recovery boot_block_device:blk_file r_file_perms;
|
|
allow install_recovery recovery_block_device:blk_file rw_file_perms;
|
|
|
|
# Create and delete /cache/saved.file
|
|
allow install_recovery cache_file:dir rw_dir_perms;
|
|
allow install_recovery cache_file:file create_file_perms;
|
|
|
|
# Write to /proc/sys/vm/drop_caches
|
|
allow install_recovery proc_drop_caches:file w_file_perms;
|