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
637 B
Text
22 lines
637 B
Text
type e2fs, domain, coredomain;
|
|
type e2fs_exec, system_file_type, exec_type, file_type;
|
|
|
|
allow e2fs devpts:chr_file { read write getattr ioctl };
|
|
|
|
allow e2fs dev_type:blk_file getattr;
|
|
allow e2fs block_device:dir search;
|
|
allow e2fs userdata_block_device:blk_file rw_file_perms;
|
|
allow e2fs metadata_block_device:blk_file rw_file_perms;
|
|
|
|
allow e2fs {
|
|
proc_filesystems
|
|
proc_mounts
|
|
proc_swaps
|
|
}:file r_file_perms;
|
|
|
|
# access /sys/fs/ext4/features
|
|
allow e2fs sysfs_fs_ext4_features:dir search;
|
|
allow e2fs sysfs_fs_ext4_features:file r_file_perms;
|
|
|
|
# access sselinux context files
|
|
allow e2fs file_contexts_file:file { getattr open read };
|