android_system_sepolicy/blkid.te
Jeff Vander Stoep d22987b4da Create attribute for moving perms out of domain
Motivation: Domain is overly permissive. Start removing permissions
from domain and assign them to the domain_deprecated attribute.
Domain_deprecated and domain can initially be assigned to all
domains. The goal is to not assign domain_deprecated to new domains
and to start removing domain_deprecated where it is not required or
reassigning the appropriate permissions to the inheriting domain
when necessary.

Bug: 25433265
Change-Id: I8b11cb137df7bdd382629c98d916a73fe276413c
2015-11-03 23:11:11 +00:00

21 lines
713 B
Plaintext

# blkid called from vold
type blkid, domain, domain_deprecated;
type blkid_exec, exec_type, file_type;
# Allowed read-only access to encrypted devices to extract UUID/label
allow blkid block_device:dir search;
allow blkid userdata_block_device:blk_file r_file_perms;
allow blkid dm_device:blk_file r_file_perms;
# Allow stdin/out back to vold
allow blkid vold:fd use;
allow blkid vold:fifo_file { read write getattr };
# For blkid launched through popen()
allow blkid blkid_exec:file rx_file_perms;
# Only allow entry from vold
neverallow { domain -vold } blkid:process transition;
neverallow domain blkid:process dyntransition;
neverallow blkid { file_type fs_type -blkid_exec -shell_exec }:file entrypoint;