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
22 lines
775 B
Text
22 lines
775 B
Text
# sgdisk called from vold
|
|
type sgdisk, domain;
|
|
type sgdisk_exec, system_file_type, exec_type, file_type;
|
|
|
|
# Allowed to read/write low-level partition tables
|
|
allow sgdisk block_device:dir search;
|
|
allow sgdisk vold_device:blk_file rw_file_perms;
|
|
|
|
# Inherit and use pty created by android_fork_execvp()
|
|
allow sgdisk devpts:chr_file { read write ioctl getattr };
|
|
|
|
# Allow stdin/out back to vold
|
|
allow sgdisk vold:fd use;
|
|
allow sgdisk vold:fifo_file { read write getattr };
|
|
|
|
# Used to probe kernel to reload partition tables
|
|
allow sgdisk self:global_capability_class_set sys_admin;
|
|
|
|
# Only allow entry from vold
|
|
neverallow { domain -vold } sgdisk:process transition;
|
|
neverallow * sgdisk:process dyntransition;
|
|
neverallow sgdisk { file_type fs_type -sgdisk_exec }:file entrypoint;
|