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Nick Kralevich authored
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
5e37271d
healthd.te 1.73 KiB
# healthd - battery/charger monitoring service daemon
type healthd, domain;
type healthd_exec, system_file_type, exec_type, file_type;
# Write to /dev/kmsg
allow healthd kmsg_device:chr_file rw_file_perms;
# Read access to pseudo filesystems.
allow healthd sysfs_type:dir search;
# Allow to read /sys/class/power_supply directory.
allow healthd sysfs:dir r_dir_perms;
r_dir_file(healthd, rootfs)
r_dir_file(healthd, cgroup)
allow healthd self:global_capability_class_set { sys_tty_config };
allow healthd self:global_capability_class_set sys_boot;
allow healthd self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
wakelock_use(healthd)
hal_client_domain(healthd, hal_health)
# Read/write to /sys/power/state
allow healthd sysfs_power:file rw_file_perms;
# TODO: added to match above sysfs rule. Remove me?
allow healthd sysfs_usb:file write;
r_dir_file(healthd, sysfs_batteryinfo)
###
### healthd: charger mode
###
# Read /sys/fs/pstore/console-ramoops
# Don't worry about overly broad permissions for now, as there's
# only one file in /sys/fs/pstore
allow healthd pstorefs:dir r_dir_perms;
allow healthd pstorefs:file r_file_perms;
allow healthd graphics_device:dir r_dir_perms;
allow healthd graphics_device:chr_file rw_file_perms;
allow healthd input_device:dir r_dir_perms;
allow healthd input_device:chr_file r_file_perms;
allow healthd tty_device:chr_file rw_file_perms;
allow healthd ashmem_device:chr_file execute;
allow healthd self:process execmem;
allow healthd proc_sysrq:file rw_file_perms;
# Healthd needs to tell init to continue the boot
# process when running in charger mode.
set_prop(healthd, system_prop)
set_prop(healthd, exported_system_prop)
set_prop(healthd, exported2_system_prop)
set_prop(healthd, exported3_system_prop)