ab318e30d3
Bug: 63927601 Test: Enable metadata encryption in fstab on Taimen, check boot success. Change-Id: Id425c47d48f413d6ea44ed170835a52d0af39f9f
57 lines
1.8 KiB
Text
57 lines
1.8 KiB
Text
# Any fsck program run by init
|
|
type fsck, domain;
|
|
type fsck_exec, exec_type, file_type;
|
|
|
|
# /dev/__null__ created by init prior to policy load,
|
|
# open fd inherited by fsck.
|
|
allow fsck tmpfs:chr_file { read write ioctl };
|
|
|
|
# Inherit and use pty created by android_fork_execvp_ext().
|
|
allow fsck devpts:chr_file { read write ioctl getattr };
|
|
|
|
# Allow stdin/out back to vold
|
|
allow fsck vold:fd use;
|
|
allow fsck vold:fifo_file { read write getattr };
|
|
|
|
# Run fsck on certain block devices
|
|
allow fsck block_device:dir search;
|
|
allow fsck userdata_block_device:blk_file rw_file_perms;
|
|
allow fsck cache_block_device:blk_file rw_file_perms;
|
|
allow fsck dm_device:blk_file rw_file_perms;
|
|
|
|
# To determine if it is safe to run fsck on a filesystem, e2fsck
|
|
# must first determine if the filesystem is mounted. To do that,
|
|
# e2fsck scans through /proc/mounts and collects all the mounted
|
|
# block devices. With that information, it runs stat() on each block
|
|
# device, comparing the major and minor numbers to the filesystem
|
|
# passed in on the command line. If there is a match, then the filesystem
|
|
# is currently mounted and running fsck is dangerous.
|
|
# Allow stat access to all block devices so that fsck can compare
|
|
# major/minor values.
|
|
allow fsck dev_type:blk_file getattr;
|
|
|
|
allow fsck {
|
|
proc_mounts
|
|
proc_swaps
|
|
}:file r_file_perms;
|
|
allow fsck rootfs:dir r_dir_perms;
|
|
|
|
###
|
|
### neverallow rules
|
|
###
|
|
|
|
# fsck should never be run on these block devices
|
|
neverallow fsck {
|
|
boot_block_device
|
|
frp_block_device
|
|
recovery_block_device
|
|
root_block_device
|
|
swap_block_device
|
|
system_block_device
|
|
vold_device
|
|
}:blk_file no_rw_file_perms;
|
|
|
|
# Only allow entry from init or vold via fsck binaries
|
|
neverallow { domain -init -vold } fsck:process transition;
|
|
neverallow * fsck:process dyntransition;
|
|
neverallow fsck { file_type fs_type -fsck_exec }:file entrypoint;
|