platform_system_sepolicy/file.te
Stephen Smalley ad0d0fc722 Protect /data/property.
/data/property is only accessible by root and is used by the init
property service for storing persistent property values.  Create
a separate type for it and only allow init to write to the directory
and files within it.  Ensure that we do not allow access to other domains
in future changes or device-specific policy via a neverallow rule.

Change-Id: Iff556b9606c5651c0f1bba902e30b59bdd6f063a
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2014-05-29 13:43:37 +00:00

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# Filesystem types
type labeledfs, fs_type;
type pipefs, fs_type;
type sockfs, fs_type;
type rootfs, fs_type;
type proc, fs_type;
# Security-sensitive proc nodes that should not be writable to most.
type proc_security, fs_type;
# proc, sysfs, or other nodes that permit configuration of kernel usermodehelpers.
type usermodehelper, fs_type, sysfs_type;
type qtaguid_proc, fs_type, mlstrustedobject;
type proc_bluetooth_writable, fs_type;
type proc_net, fs_type;
type proc_sysrq, fs_type;
type selinuxfs, fs_type;
type cgroup, fs_type, mlstrustedobject;
type sysfs, fs_type, sysfs_type, mlstrustedobject;
type sysfs_writable, fs_type, sysfs_type, mlstrustedobject;
type sysfs_bluetooth_writable, fs_type, sysfs_type, mlstrustedobject;
type sysfs_nfc_power_writable, fs_type, sysfs_type, mlstrustedobject;
type sysfs_wake_lock, fs_type, sysfs_type;
# /sys/devices/system/cpu
type sysfs_devices_system_cpu, fs_type, sysfs_type;
# /sys/module/lowmemorykiller
type sysfs_lowmemorykiller, fs_type, sysfs_type;
type inotify, fs_type, mlstrustedobject;
type devpts, fs_type, mlstrustedobject;
type tmpfs, fs_type;
type shm, fs_type;
type mqueue, fs_type;
type sdcard_internal, sdcard_type, fs_type, mlstrustedobject;
type sdcard_external, sdcard_type, fs_type, mlstrustedobject;
type debugfs, fs_type, mlstrustedobject;
type pstorefs, fs_type;
type functionfs, fs_type;
type oemfs, fs_type;
# File types
type unlabeled, file_type;
# Default type for anything under /system.
type system_file, file_type;
# Default type for anything under /data.
type system_data_file, file_type, data_file_type;
# /data/.layout_version or other installd-created files that
# are created in a system_data_file directory.
type install_data_file, file_type, data_file_type;
# /data/drm - DRM plugin data
type drm_data_file, file_type, data_file_type;
# /data/anr - ANR traces
type anr_data_file, file_type, data_file_type, mlstrustedobject;
# /data/tombstones - core dumps
type tombstone_data_file, file_type, data_file_type;
# /data/app - user-installed apps
type apk_data_file, file_type, data_file_type;
type apk_tmp_file, file_type, data_file_type, mlstrustedobject;
# /data/app-private - forward-locked apps
type apk_private_data_file, file_type, data_file_type;
type apk_private_tmp_file, file_type, data_file_type, mlstrustedobject;
# /data/dalvik-cache
type dalvikcache_data_file, file_type, data_file_type;
# /data/dalvik-cache/profiles
type dalvikcache_profiles_data_file, file_type, data_file_type;
# /data/local - writable by shell
type shell_data_file, file_type, data_file_type;
# /data/gps
type gps_data_file, file_type, data_file_type;
# /data/property
type property_data_file, file_type, data_file_type;
# /data/misc subdirectories
type adb_keys_file, file_type, data_file_type;
type audio_data_file, file_type, data_file_type;
type bluetooth_data_file, file_type, data_file_type;
type camera_data_file, file_type, data_file_type;
type keystore_data_file, file_type, data_file_type;
type media_data_file, file_type, data_file_type;
type media_rw_data_file, file_type, data_file_type;
type nfc_data_file, file_type, data_file_type;
type radio_data_file, file_type, data_file_type;
type shared_relro_file, file_type, data_file_type;
type systemkeys_data_file, file_type, data_file_type;
type vpn_data_file, file_type, data_file_type;
type wifi_data_file, file_type, data_file_type;
type zoneinfo_data_file, file_type, data_file_type;
# Compatibility with type names used in vanilla Android 4.3 and 4.4.
typealias audio_data_file alias audio_firmware_file;
# /data/data subdirectories - app sandboxes
type app_data_file, file_type, data_file_type;
# /data/data subdirectory for system UID apps.
type system_app_data_file, file_type, data_file_type;
# Compatibility with type name used in Android 4.3 and 4.4.
typealias app_data_file alias platform_app_data_file;
typealias app_data_file alias download_file;
# Default type for anything under /cache
type cache_file, file_type, mlstrustedobject;
# Type for /cache/.*\.{data|restore} and default
# type for anything under /cache/backup
type cache_backup_file, file_type, mlstrustedobject;
# Default type for anything under /efs
type efs_file, file_type;
# Type for wallpaper file.
type wallpaper_file, file_type, mlstrustedobject;
# /mnt/asec
type asec_apk_file, file_type, data_file_type;
# Elements of asec files (/mnt/asec) that are world readable
type asec_public_file, file_type, data_file_type;
# /data/app-asec
type asec_image_file, file_type, data_file_type;
# /data/backup and /data/secure/backup
type backup_data_file, file_type, data_file_type, mlstrustedobject;
# For /data/security
type security_file, file_type;
# All devices have bluetooth efs files. But they
# vary per device, so this type is used in per
# device policy
type bluetooth_efs_file, file_type;
# Socket types
type adbd_socket, file_type;
type bluetooth_socket, file_type;
type dnsproxyd_socket, file_type, mlstrustedobject;
type dumpstate_socket, file_type;
type fwmarkd_socket, file_type, mlstrustedobject;
type gps_socket, file_type;
type installd_socket, file_type;
type lmkd_socket, file_type;
type logd_debug, file_type;
type logd_socket, file_type;
type logdr_socket, file_type;
type logdw_socket, file_type;
type mdns_socket, file_type;
type mdnsd_socket, file_type;
type mtpd_socket, file_type;
type netd_socket, file_type;
type property_socket, file_type;
type racoon_socket, file_type;
type rild_socket, file_type;
type rild_debug_socket, file_type;
type system_wpa_socket, file_type;
type system_ndebug_socket, file_type;
type vold_socket, file_type;
type wpa_socket, file_type;
type zygote_socket, file_type;
# UART (for GPS) control proc file
type gps_control, file_type;
# Allow files to be created in their appropriate filesystems.
allow fs_type self:filesystem associate;
allow sysfs_type sysfs:filesystem associate;
allow file_type labeledfs:filesystem associate;
allow file_type tmpfs:filesystem associate;
allow file_type rootfs:filesystem associate;
allow dev_type tmpfs:filesystem associate;