blob: 4256ac38ee4b9c3921bdc0f0a4f12181d9bc92b7 [file] [log] [blame]
typeattribute vold coredomain;
init_daemon_domain(vold)
# Switch to more restrictive domains when executing common tools
domain_auto_trans(vold, sgdisk_exec, sgdisk);
domain_auto_trans(vold, sdcardd_exec, sdcardd);
domain_auto_trans(vold, fuseblkd_untrusted_exec, fuseblkd_untrusted);
# Switch to e2fs domain when running mkfs.ext4 to format a partition
domain_auto_trans(vold, e2fs_exec, e2fs);
# For a handful of probing tools, we choose an even more restrictive
# domain when working with untrusted block devices
domain_trans(vold, blkid_exec, blkid);
domain_trans(vold, blkid_exec, blkid_untrusted);
domain_trans(vold, fsck_exec, fsck);
domain_trans(vold, fsck_exec, fsck_untrusted);
# Newly created storage dirs are always treated as mount stubs to prevent us
# from accidentally writing when the mount point isn't present.
type_transition vold storage_file:dir storage_stub_file;
type_transition vold mnt_media_rw_file:dir mnt_media_rw_stub_file;
# Property Service
get_prop(vold, vold_config_prop)
get_prop(vold, storage_config_prop);
get_prop(vold, incremental_prop);
get_prop(vold, gsid_prop);
set_prop(vold, vold_prop)
set_prop(vold, vold_status_prop)
set_prop(vold, powerctl_prop)
set_prop(vold, ctl_fuse_prop)
set_prop(vold, restorecon_prop)
set_prop(vold, ota_prop)
set_prop(vold, boottime_prop)
set_prop(vold, boottime_public_prop)
# Vold will use Keystore instead of using Keymint directly. But it still needs
# to manage its Keymint blobs. This is why it needs the `manage_blob` permission.
allow vold vold_key:keystore2_key {
convert_storage_key_to_ephemeral
delete
get_info
manage_blob
rebind
req_forced_op
update
use
};
# vold needs to call keystore methods
allow vold keystore:binder call;
# vold needs to find keystore2 services
allow vold keystore_service:service_manager find;
allow vold keystore_maintenance_service:service_manager find;
# vold needs to be able to call earlyBootEnded() and deleteAllKeys()
allow vold keystore:keystore2 early_boot_ended;
allow vold keystore:keystore2 delete_all_keys;
neverallow {
domain
-system_server
-vdc
-vold
-update_verifier
-apexd
-gsid
} vold_service:service_manager find;
# Allow vold to create and delete per-user directories like /data/user/$userId.
allow vold {
media_userdir_file
system_userdir_file
vendor_userdir_file
}:dir {
add_name
remove_name
write
};
# Only vold should create (and delete) per-user directories like
# /data/user/$userId. This is very important, as these directories need to be
# encrypted with per-user keys, which only vold can do. Encryption can only be
# set up on empty directories, so creation and encryption must happen together.
neverallow {
domain
-vold
} {
media_userdir_file
system_userdir_file
vendor_userdir_file
}:dir {
add_name
remove_name
write
};