2c347e0a36
Change I6dacdc43bcc1a56e47655e37e825ee6a205eb56b switched the keystore to using binder instead of a socket, so this socket type and rules have been unused for a while. The type was only ever assigned to a /dev/socket socket file (tmpfs) so there is no issue with removing the type (no persistent files will have this xattr value). Change-Id: Id584233c58f6276774c3432ea76878aca28d6280 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
253 lines
9 KiB
Text
253 lines
9 KiB
Text
#
|
|
# System Server aka system_server spawned by zygote.
|
|
# Most of the framework services run in this process.
|
|
#
|
|
type system_server, domain, mlstrustedsubject;
|
|
permissive_or_unconfined(system_server)
|
|
|
|
# Define a type for tmpfs-backed ashmem regions.
|
|
tmpfs_domain(system_server)
|
|
|
|
# Dalvik Compiler JIT Mapping.
|
|
allow system_server self:process execmem;
|
|
allow system_server ashmem_device:chr_file execute;
|
|
allow system_server system_server_tmpfs:file execute;
|
|
|
|
# For art.
|
|
allow system_server dalvikcache_data_file:file execute;
|
|
|
|
# Child of the zygote.
|
|
allow system_server zygote:fd use;
|
|
allow system_server zygote:process sigchld;
|
|
allow system_server zygote_tmpfs:file read;
|
|
|
|
# system server gets network and bluetooth permissions.
|
|
net_domain(system_server)
|
|
bluetooth_domain(system_server)
|
|
|
|
# These are the capabilities assigned by the zygote to the
|
|
# system server.
|
|
allow system_server self:capability {
|
|
kill
|
|
net_admin
|
|
net_bind_service
|
|
net_broadcast
|
|
net_raw
|
|
sys_boot
|
|
sys_module
|
|
sys_nice
|
|
sys_resource
|
|
sys_time
|
|
sys_tty_config
|
|
};
|
|
|
|
allow system_server self:capability2 block_suspend;
|
|
|
|
# Triggered by /proc/pid accesses, not allowed.
|
|
dontaudit system_server self:capability sys_ptrace;
|
|
|
|
# Trigger module auto-load.
|
|
allow system_server kernel:system module_request;
|
|
|
|
# Use netlink uevent sockets.
|
|
allow system_server self:netlink_kobject_uevent_socket create_socket_perms;
|
|
|
|
# Kill apps.
|
|
allow system_server appdomain:process { sigkill signal };
|
|
|
|
# Set scheduling info for apps.
|
|
allow system_server appdomain:process { getsched setsched };
|
|
allow system_server mediaserver:process { getsched setsched };
|
|
|
|
# Read /proc data for apps.
|
|
allow system_server appdomain:dir r_dir_perms;
|
|
allow system_server appdomain:{ file lnk_file } rw_file_perms;
|
|
|
|
# Read/Write to /proc/net/xt_qtaguid/ctrl and and /dev/xt_qtaguid.
|
|
allow system_server qtaguid_proc:file rw_file_perms;
|
|
allow system_server qtaguid_device:chr_file rw_file_perms;
|
|
|
|
# Read /sys/kernel/debug/wakeup_sources.
|
|
allow system_server debugfs:file r_file_perms;
|
|
|
|
# WifiWatchdog uses a packet_socket
|
|
allow system_server self:packet_socket create_socket_perms;
|
|
|
|
# 3rd party VPN clients require a tun_socket to be created
|
|
allow system_server self:tun_socket create_socket_perms;
|
|
|
|
# Notify init of death.
|
|
allow system_server init:process sigchld;
|
|
|
|
# Talk to init and various daemons via sockets.
|
|
unix_socket_connect(system_server, property, init)
|
|
unix_socket_connect(system_server, qemud, qemud)
|
|
unix_socket_connect(system_server, installd, installd)
|
|
unix_socket_connect(system_server, lmkd, lmkd)
|
|
unix_socket_connect(system_server, netd, netd)
|
|
unix_socket_connect(system_server, vold, vold)
|
|
unix_socket_connect(system_server, zygote, zygote)
|
|
unix_socket_connect(system_server, gps, gpsd)
|
|
unix_socket_connect(system_server, racoon, racoon)
|
|
unix_socket_send(system_server, wpa, wpa)
|
|
|
|
# Communicate over a socket created by surfaceflinger.
|
|
allow system_server surfaceflinger:unix_stream_socket { read write setopt };
|
|
|
|
# Perform Binder IPC.
|
|
binder_use(system_server)
|
|
binder_call(system_server, binderservicedomain)
|
|
binder_call(system_server, appdomain)
|
|
binder_call(system_server, healthd)
|
|
binder_call(system_server, dumpstate)
|
|
binder_service(system_server)
|
|
|
|
# Read /proc/pid files for Binder clients.
|
|
r_dir_file(system_server, appdomain)
|
|
r_dir_file(system_server, mediaserver)
|
|
allow system_server appdomain:process getattr;
|
|
allow system_server mediaserver:process getattr;
|
|
|
|
# Check SELinux permissions.
|
|
selinux_check_access(system_server)
|
|
|
|
# XXX Label sysfs files with a specific type?
|
|
allow system_server sysfs:file rw_file_perms;
|
|
allow system_server sysfs_nfc_power_writable:file rw_file_perms;
|
|
|
|
# Access devices.
|
|
allow system_server device:dir r_dir_perms;
|
|
allow system_server mdns_socket:sock_file rw_file_perms;
|
|
allow system_server alarm_device:chr_file rw_file_perms;
|
|
allow system_server gpu_device:chr_file rw_file_perms;
|
|
allow system_server graphics_device:dir search;
|
|
allow system_server graphics_device:chr_file rw_file_perms;
|
|
allow system_server iio_device:chr_file rw_file_perms;
|
|
allow system_server input_device:dir r_dir_perms;
|
|
allow system_server input_device:chr_file rw_file_perms;
|
|
allow system_server tty_device:chr_file rw_file_perms;
|
|
allow system_server urandom_device:chr_file rw_file_perms;
|
|
allow system_server usbaccessory_device:chr_file rw_file_perms;
|
|
allow system_server video_device:dir r_dir_perms;
|
|
allow system_server video_device:chr_file rw_file_perms;
|
|
allow system_server qemu_device:chr_file rw_file_perms;
|
|
allow system_server adbd_socket:sock_file rw_file_perms;
|
|
|
|
# tun device used for 3rd party vpn apps
|
|
allow system_server tun_device:chr_file rw_file_perms;
|
|
|
|
# Manage data files.
|
|
allow system_server data_file_type:dir create_dir_perms;
|
|
allow system_server data_file_type:notdevfile_class_set create_file_perms;
|
|
|
|
# Read /file_contexts and /data/security/file_contexts
|
|
security_access_policy(system_server)
|
|
|
|
# Relabel apk files.
|
|
relabelto_domain(system_server)
|
|
allow system_server { apk_tmp_file apk_private_tmp_file }:file { relabelfrom relabelto };
|
|
allow system_server { apk_data_file apk_private_data_file }:file { relabelfrom relabelto };
|
|
|
|
# Relabel wallpaper.
|
|
allow system_server system_data_file:file relabelfrom;
|
|
allow system_server wallpaper_file:file relabelto;
|
|
allow system_server wallpaper_file:file rw_file_perms;
|
|
|
|
# Relabel /data/anr.
|
|
allow system_server system_data_file:dir relabelfrom;
|
|
allow system_server anr_data_file:dir relabelto;
|
|
|
|
# Property Service write
|
|
allow system_server system_prop:property_service set;
|
|
allow system_server radio_prop:property_service set;
|
|
allow system_server debug_prop:property_service set;
|
|
allow system_server powerctl_prop:property_service set;
|
|
|
|
# ctl interface
|
|
allow system_server ctl_default_prop:property_service set;
|
|
|
|
# Create a socket for receiving info from wpa.
|
|
type_transition system_server wifi_data_file:sock_file system_wpa_socket;
|
|
type_transition system_server wpa_socket:sock_file system_wpa_socket;
|
|
allow system_server wpa_socket:dir rw_dir_perms;
|
|
allow system_server system_wpa_socket:sock_file create_file_perms;
|
|
|
|
# Remove sockets created by wpa_supplicant
|
|
allow system_server wpa_socket:sock_file unlink;
|
|
|
|
# Create a socket for connections from debuggerd.
|
|
type_transition system_server system_data_file:sock_file system_ndebug_socket "ndebugsocket";
|
|
allow system_server system_ndebug_socket:sock_file create_file_perms;
|
|
|
|
# Specify any arguments to zygote.
|
|
allow system_server self:zygote { specifyids specifyrlimits specifyseinfo };
|
|
|
|
# Manage cache files.
|
|
allow system_server cache_file:dir { relabelfrom create_dir_perms };
|
|
allow system_server cache_file:file { relabelfrom create_file_perms };
|
|
|
|
# Run system programs, e.g. dexopt.
|
|
allow system_server system_file:file x_file_perms;
|
|
|
|
# Allow reading of /proc/pid data for other domains.
|
|
# XXX dontaudit candidate
|
|
allow system_server domain:dir r_dir_perms;
|
|
allow system_server domain:file r_file_perms;
|
|
|
|
# LocationManager(e.g, GPS) needs to read and write
|
|
# to uart driver and ctrl proc entry
|
|
allow system_server gps_device:chr_file rw_file_perms;
|
|
allow system_server gps_control:file rw_file_perms;
|
|
|
|
# Allow system_server to use app-created sockets.
|
|
allow system_server appdomain:{ tcp_socket udp_socket } { setopt read write };
|
|
|
|
# Allow abstract socket connection
|
|
allow system_server rild:unix_stream_socket connectto;
|
|
|
|
# connect to vpn tunnel
|
|
allow system_server mtp:unix_stream_socket { connectto };
|
|
|
|
# BackupManagerService lets PMS create a data backup file
|
|
allow system_server cache_backup_file:file create_file_perms;
|
|
# Relabel /data/backup
|
|
allow system_server backup_data_file:dir { relabelto relabelfrom };
|
|
# Relabel /cache/.*\.{data|restore}
|
|
allow system_server cache_backup_file:file { relabelto relabelfrom };
|
|
# LocalTransport creates and relabels /cache/backup
|
|
allow system_server cache_backup_file:dir { relabelto relabelfrom create_dir_perms };
|
|
|
|
# Allow system to talk to usb device
|
|
allow system_server usb_device:chr_file rw_file_perms;
|
|
allow system_server usb_device:dir r_dir_perms;
|
|
|
|
# Allow system to talk to sensors
|
|
allow system_server sensors_device:chr_file rw_file_perms;
|
|
|
|
# Read from HW RNG (needed by EntropyMixer).
|
|
allow system_server hw_random_device:chr_file r_file_perms;
|
|
|
|
# Access to wake locks
|
|
allow system_server sysfs_wake_lock:file rw_file_perms;
|
|
|
|
# Read and delete files under /dev/fscklogs.
|
|
r_dir_file(system_server, fscklogs)
|
|
allow system_server fscklogs:dir { write remove_name };
|
|
allow system_server fscklogs:file unlink;
|
|
|
|
# For SELinuxPolicyInstallReceiver
|
|
selinux_manage_policy(system_server)
|
|
|
|
# For legacy unlabeled userdata on existing devices.
|
|
# See discussion of Unlabeled files in domain.te for more information.
|
|
# This rule is for dalvikcache mmap/mprotect PROT_EXEC.
|
|
allow system_server unlabeled:file execute;
|
|
|
|
# logd access, system_server inherit logd write socket
|
|
# (urge is to deprecate this long term)
|
|
allow system_server zygote:unix_dgram_socket write;
|
|
|
|
# Be consistent with DAC permissions. Allow system_server to write to
|
|
# /sys/module/lowmemorykiller/parameters/adj
|
|
# /sys/module/lowmemorykiller/parameters/minfree
|
|
allow system_server sysfs_lowmemorykiller:file { getattr w_file_perms };
|