xref: /system/sepolicy/public/vold.te

# volume manager
type vold, domain;
type vold_exec, exec_type, file_type;

init_daemon_domain(vold)

typeattribute vold mlstrustedsubject;
allow vold system_file:file x_file_perms;
allow vold block_device:dir create_dir_perms;
allow vold block_device:blk_file create_file_perms;
allow vold device:dir write;
allow vold devpts:chr_file rw_file_perms;
allow vold rootfs:dir mounton;
allow vold sdcard_type:dir mounton;
allow vold sdcard_type:filesystem { mount remount unmount };
allow vold sdcard_type:dir create_dir_perms;
allow vold sdcard_type:file create_file_perms;
allow vold tmpfs:filesystem { mount unmount };
allow vold tmpfs:dir create_dir_perms;
allow vold tmpfs:dir mounton;
allow vold self:capability { net_admin dac_override mknod sys_admin chown fowner fsetid };
allow vold self:netlink_kobject_uevent_socket create_socket_perms;
allow vold app_data_file:dir search;
allow vold app_data_file:file rw_file_perms;
allow vold loop_device:blk_file rw_file_perms;
allow vold dm_device:chr_file rw_file_perms;
# For vold Process::killProcessesWithOpenFiles function.
allow vold domain:dir r_dir_perms;
allow vold domain:{ file lnk_file } r_file_perms;
allow vold domain:process { signal sigkill };
allow vold self:capability { sys_ptrace kill };

# For blkid
allow vold shell_exec:file rx_file_perms;

# XXX Label sysfs files with a specific type?
allow vold sysfs:file rw_file_perms;

write_klog(vold)

# Log fsck results
allow vold fscklogs:dir rw_dir_perms;
allow vold fscklogs:file create_file_perms;

#
# Rules to support encrypted fs support.
#

# Set property.
unix_socket_connect(vold, property, init)

# Unmount and mount the fs.
allow vold labeledfs:filesystem { mount unmount remount };

# Access /efs/userdata_footer.
# XXX Split into a separate type?
allow vold efs_file:file rw_file_perms;

# Create and mount on /data/tmp_mnt.
allow vold system_data_file:dir { create rw_dir_perms mounton };

# Set scheduling policy of kernel processes
allow vold kernel:process setsched;

# Property Service
allow vold vold_prop:property_service set;
allow vold powerctl_prop:property_service set;
allow vold ctl_fuse_prop:property_service set;

# ASEC
allow vold asec_image_file:file create_file_perms;
allow vold asec_image_file:dir rw_dir_perms;
security_access_policy(vold)
relabelto_domain(vold)
allow vold asec_apk_file:dir { rw_dir_perms setattr relabelfrom };
allow vold asec_public_file:dir { relabelto setattr };
allow vold asec_apk_file:file { r_file_perms setattr relabelfrom };
allow vold asec_public_file:file { relabelto setattr };

# Handle wake locks (used for device encryption)
allow vold sysfs_wake_lock:file rw_file_perms;
allow vold self:capability2 block_suspend;

# talk to batteryservice
binder_use(vold)
binder_call(vold, healthd)

# talk to keymaster
allow vold tee_device:chr_file rw_file_perms;