app.te revision ad7df7bb76ce00cdef711ad1f96a9a7243981f4e
1748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### 2748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### Domain for all zygote spawned apps 3748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### 4748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### This file is the base policy for all zygote spawned apps. 5748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### Other policy files, such as isolated_app.te, untrusted_app.te, etc 6748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### extend from this policy. Only policies which should apply to ALL 7748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### zygote spawned apps should be added here. 8748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich### 9748fdef626d1dda2a0a727ea35d85d04363f5307Nick Kralevich 10ad7df7bb76ce00cdef711ad1f96a9a7243981f4eStephen Smalley# Dalvik Compiler JIT Mapping. 11ad7df7bb76ce00cdef711ad1f96a9a7243981f4eStephen Smalleyallow appdomain self:process execmem; 12ad7df7bb76ce00cdef711ad1f96a9a7243981f4eStephen Smalley 136634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow apps to connect to the keystore 146634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichunix_socket_connect(appdomain, keystore, keystore) 156634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 166634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Receive and use open file descriptors inherited from zygote. 176634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote:fd use; 186634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1961dc35072090f2735af2b39572e39eadb30573ebNick Kralevich# Needed to close the zygote socket, which involves getopt / getattr 2061dc35072090f2735af2b39572e39eadb30573ebNick Kralevich# This should be deleted after b/12061011 is fixed 2161dc35072090f2735af2b39572e39eadb30573ebNick Kralevichallow appdomain zygote:unix_stream_socket { getopt getattr }; 2261dc35072090f2735af2b39572e39eadb30573ebNick Kralevich 2348759ca2054fa742724cd81debed51208b69e758Stephen Smalley# gdbserver for ndk-gdb reads the zygote. 2448759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain zygote_exec:file r_file_perms; 2548759ca2054fa742724cd81debed51208b69e758Stephen Smalley 2648759ca2054fa742724cd81debed51208b69e758Stephen Smalley# gdbserver for ndk-gdb ptrace attaches to app process. 2748759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain self:process ptrace; 2848759ca2054fa742724cd81debed51208b69e758Stephen Smalley 296634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Read system properties managed by zygote. 306634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote_tmpfs:file read; 316634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 326634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Notify zygote of death; 336634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote:process sigchld; 346634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 3548759ca2054fa742724cd81debed51208b69e758Stephen Smalley# Notify shell and adbd of death when spawned via runas for ndk-gdb. 3648759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain shell:process sigchld; 3748759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain adbd:process sigchld; 3848759ca2054fa742724cd81debed51208b69e758Stephen Smalley 3948759ca2054fa742724cd81debed51208b69e758Stephen Smalley# child shell or gdbserver pty access for runas. 4048759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain devpts:chr_file { getattr read write ioctl }; 4148759ca2054fa742724cd81debed51208b69e758Stephen Smalley 426634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Communicate with system_server. 431fdee11df2552e29da0c48e3432f26f7a93e3bffAlex Klyubinallow appdomain system_server:fifo_file rw_file_perms; 441fdee11df2552e29da0c48e3432f26f7a93e3bffAlex Klyubinallow appdomain system_server:unix_stream_socket { read write setopt }; 451fdee11df2552e29da0c48e3432f26f7a93e3bffAlex Klyubinbinder_call(appdomain, system_server) 466634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 4782fc3b524164588388aa3595bd2158020d93d28aNick Kralevich# Communication with other apps via fifos 4882fc3b524164588388aa3595bd2158020d93d28aNick Kralevichallow appdomain appdomain:fifo_file rw_file_perms; 4982fc3b524164588388aa3595bd2158020d93d28aNick Kralevich 506634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Communicate with surfaceflinger. 516634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain surfaceflinger:unix_stream_socket { read write setopt }; 526634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, surfaceflinger) 536634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 546634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# App sandbox file accesses. 556634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain app_data_file:dir create_dir_perms; 5665317124a0bb7db4829f78e74c7bfe18e27f1c43Stephen Smalleyallow appdomain app_data_file:notdevfile_class_set create_file_perms; 576634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 586634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Read/write data files created by the platform apps if they 596634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# were passed to the app via binder or local IPC. Do not allow open. 606634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain platform_app_data_file:file { getattr read write }; 616634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 626634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# lib subdirectory of /data/data dir is system-owned. 636634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_data_file:dir r_dir_perms; 6448759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain system_data_file:file { execute execute_no_trans open }; 656634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 666634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Execute the shell or other system executables. 676634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain shell_exec:file rx_file_perms; 686634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_file:file rx_file_perms; 69cf6b350a32ea65fa359981bd42ca0324547e2784Nick Kralevichallow appdomain ping_exec:file rx_file_perms; 706634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 716634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Read/write wallpaper file (opened by system). 726634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain wallpaper_file:file { read write }; 736634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 746634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /data/anr/traces.txt. 756634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain anr_data_file:dir search; 766634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain anr_data_file:file { open append }; 776634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 7809e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevich# Allow apps to send dump information to dumpstate 7909e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevichallow appdomain dumpstate:fd use; 8009e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevichallow appdomain dumpstate:unix_stream_socket { read write getopt getattr }; 8109e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevich 826634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /proc/net/xt_qtaguid/ctrl file. 836634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain qtaguid_proc:file rw_file_perms; 846634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Everybody can read the xt_qtaguid resource tracking misc dev. 856634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# So allow all apps to read from /dev/xt_qtaguid. 866634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain qtaguid_device:chr_file r_file_perms; 876634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 883ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley# Grant GPU access to all processes started by Zygote. 893ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley# They need that to render the standard UI. 903ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalleyallow appdomain gpu_device:chr_file { rw_file_perms execute }; 913ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley 926634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Use the Binder. 936634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_use(appdomain) 946634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Perform binder IPC to binder services. 956634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, binderservicedomain) 966634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Perform binder IPC to other apps. 976634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, appdomain) 986634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 996634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Appdomain interaction with isolated apps 1006634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichr_dir_file(appdomain, isolated_app) 1016634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1026634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Already connected, unnamed sockets being passed over some other IPC 1036634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# hence no sock_file or connectto permission. This appears to be how 1046634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Chrome works, may need to be updated as more apps using isolated services 1056634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# are examined. 1066634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain isolated_app:unix_stream_socket { read write }; 1076634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1086634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Backup ability for every app. BMS opens and passes the fd 1096634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# to any app that has backup ability. Hence, no open permissions here. 11081560733a47633036133ce548bf638bc3d91f5cfGeremy Condraallow appdomain backup_data_file:file { read write getattr }; 11181560733a47633036133ce548bf638bc3d91f5cfGeremy Condraallow appdomain cache_backup_file:file { read write getattr }; 1126634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Backup ability using 'adb backup' 1136634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_data_file:lnk_file getattr; 1146634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1156634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow all applications to read downloaded files 11617454cf805748a8792608a44bbfddb00fb918841Stephen Smalleyallow appdomain download_file:dir search; 1176634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain download_file:file r_file_perms; 1186634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1196634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow applications to communicate with netd via /dev/socket/dnsproxyd 1206634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# to do DNS resolution 1216634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichunix_socket_connect(appdomain, dnsproxyd, netd) 1226634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1236634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow applications to communicate with drmserver over binder 1246634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, drmserver) 1256634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1266634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow applications to communicate with mediaserver over binder 1276634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, mediaserver) 1286634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1296634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow applications to make outbound tcp connections to any port 1306634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain port_type:tcp_socket name_connect; 1316634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1326634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow apps to see changes to the routing table. 1336634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain self:netlink_route_socket { 1346634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich read 1356634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich bind 1366634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich create 1376634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich nlmsg_read 1386634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich ioctl 1396634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich getattr 1406634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich setattr 1416634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich getopt 1426634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich setopt 1436634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich shutdown 1446634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich}; 1456634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1466634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Allow apps to use rawip sockets. This is needed for apps which execute 1476634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# /system/bin/ping, for example. 1486634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain self:rawip_socket create_socket_perms; 1496634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1500b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# Allow apps to use the USB Accessory interface. 1510b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# http://developer.android.com/guide/topics/connectivity/usb/accessory.html 1520b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# 1530b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# USB devices are first opened by the system server (USBDeviceManagerService) 1540b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# and the file descriptor is passed to the right Activity via binder. 1550b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevichallow appdomain usb_device:chr_file { read write getattr ioctl }; 1560b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevichallow appdomain usbaccessory_device:chr_file { read write getattr }; 1570b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich 158527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalley# For art. 159527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalleyallow appdomain dalvikcache_data_file:file execute; 160527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalley 1616634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 162594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### CTS-specific rules 163594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### 164594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 165594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/RootProcessScanner.java. 166594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Reads /proc/pid/status and statm entries to check that 167594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# no unexpected root processes are running. 168594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Also for cts/tests/tests/security/src/android/security/cts/VoldExploitTest.java 169594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Reads /proc/pid/cmdline of vold. 170594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:dir { open read search getattr }; 171594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:{ file lnk_file } { open read getattr }; 172594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 173594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tests/tests/permission/src/android/permission/cts/FileSystemPermissionTest.java. 174594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# testRunAsHasCorrectCapabilities 175594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain runas_exec:file getattr; 176594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Others are either allowed elsewhere or not desired. 177594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 178594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tests/tests/security/src/android/security/cts/SELinuxTest.java 179594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Check SELinux policy and contexts. 180594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyselinux_check_access(appdomain) 181594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyselinux_check_context(appdomain) 182594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Validate that each process is running in the correct security context. 183594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:process getattr; 184594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 185594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### 1866634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### Neverallow rules 1876634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 1886634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### These are things that Android apps should NEVER be able to do 1896634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 1906634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1916634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Superuser capabilities. 1922a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# bluetooth requires net_admin. 1932a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain -bluetooth } self:capability *; 1946634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } self:capability2 *; 1956634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1966634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Block device access. 1976634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } dev_type:blk_file { read write }; 1986634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1992a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to any character device that is not specifically typed. 2002a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } device:chr_file { read write }; 2012a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2022a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to any of the following character devices. 2032a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } { 2042a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley audio_device 2052a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley camera_device 2062a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley dm_device 2072a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley radio_device 2082a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley gps_device 2092a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley rpmsg_device 2102a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley}:chr_file { read write }; 2112a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2122a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Note: Try expanding list of app domains in the future. 2132a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { untrusted_app isolated_app shell -unconfineddomain } 2142a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley graphics_device:chr_file { read write }; 2152a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2162a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -nfc -unconfineddomain } nfc_device:chr_file 2172a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { read write }; 2182a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -unconfineddomain } hci_attach_dev:chr_file 2192a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { read write }; 2202a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } tee_device:chr_file { read write }; 2212a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2222a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Set SELinux enforcing mode, booleans or any other SELinux settings. 2232a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } kernel:security 2242a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { setenforce setbool setsecparam setcheckreqprot }; 2256634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2266634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Load security policy. 2272637198f92d5d9c65262e42d78123d216889d546Nick Kralevichneverallow appdomain kernel:security load_policy; 2286634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2296634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Privileged netlink socket interfaces. 2306634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } 2316634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich self:{ 2326634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_socket 2336634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_firewall_socket 2346634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_tcpdiag_socket 2356634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_nflog_socket 2366634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_xfrm_socket 2376634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_audit_socket 2386634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_ip6fw_socket 2396634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_dnrt_socket 2406634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_kobject_uevent_socket 2416634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich } *; 2426634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2432a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Sockets under /dev/socket that are not specifically typed. 2442a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } socket_device:sock_file write; 2452a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2462a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Unix domain sockets. 2472a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } adbd_socket:sock_file write; 2482a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } bluetooth_socket:sock_file write; 2492a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } installd_socket:sock_file write; 2502a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -radio -shell -system_app -unconfineddomain } 2512a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley property_socket:sock_file write; 2522a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -radio -unconfineddomain } rild_socket:sock_file write; 2532a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } vold_socket:sock_file write; 2542a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } zygote_socket:sock_file write; 2552a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2566634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# ptrace access to non-app domains. 2576634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } { domain -appdomain }:process ptrace; 2586634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2592a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write access to /proc/pid entries for any non-app domain. 26073c5ea722c7ee328f0d10179601afd9d5a054b94Nick Kralevichneverallow { appdomain -unconfineddomain } { domain -appdomain }:file write; 2612a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2622a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# signal access to non-app domains. 2632a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# sigchld allowed for parent death notification. 2642a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# signull allowed for kill(pid, 0) existence test. 2652a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# All others prohibited. 2662a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } { domain -appdomain }:process 2672a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { sigkill sigstop signal }; 2682a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2696634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Transition to a non-app domain. 27057085446eb49777189123a994884f76b8491ed26Stephen Smalley# Exception for the shell domain, can transition to runas, ping, etc. 27157085446eb49777189123a994884f76b8491ed26Stephen Smalleyneverallow { appdomain -shell -unconfineddomain } ~appdomain:process 2722a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { transition dyntransition }; 2732a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2742a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Map low memory. 2752a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Note: Take to domain.te and apply to all domains in the future. 2762a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } self:memprotect mmap_zero; 2772a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2782a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to rootfs. 2792a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } rootfs:dir_file_class_set 2802a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2816634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2826634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /system. 2832a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } system_file:dir_file_class_set 2842a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2852a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2862a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to entrypoint executables. 2872a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } exec_type:file 2882a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2896634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2906634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to system-owned parts of /data. 2916634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# This is the default type for anything under /data not otherwise 2926634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# specified in file_contexts. Define a different type for portions 2936634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# that should be writable by apps. 2946634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Exception for system_app for Settings. 2952a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain -system_app } 2962a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley system_data_file:dir_file_class_set 2972a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2982a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2992a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to various other parts of /data. 3002a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -unconfineddomain } 3012a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley security_file:dir_file_class_set 3022a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3032a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } drm_data_file:dir_file_class_set 3042a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3052a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } gps_data_file:dir_file_class_set 3062a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3072a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 3082a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_data_file:dir_file_class_set 3092a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3102a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 3112a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_tmp_file:dir_file_class_set 3122a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3132a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 3142a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_private_data_file:dir_file_class_set 3152a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3162a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 3172a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_private_tmp_file:dir_file_class_set 3182a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3192a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -shell -unconfineddomain } 3202a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley shell_data_file:dir_file_class_set 3212a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3222a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -unconfineddomain } 3232a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley bluetooth_data_file:dir_file_class_set 3242a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3252a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3262a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley keystore_data_file:dir_file_class_set 3272a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3282a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3292a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley systemkeys_data_file:dir_file_class_set 3302a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3312a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3322a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley wifi_data_file:dir_file_class_set 3332a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3342a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3352a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley dhcp_data_file:dir_file_class_set 3362a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3372a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3382a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to factory files. 3392a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3402a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley efs_file:dir_file_class_set { read write }; 3412a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3422a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to various pseudo file systems. 3432a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -nfc -unconfineddomain } 3442a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley sysfs:dir_file_class_set write; 3452a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3462a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley proc:dir_file_class_set write; 3472a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3482a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to syslog(2) or /proc/kmsg. 3492a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -unconfineddomain } 3502a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley kernel:system { syslog_read syslog_mod syslog_console }; 3512a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3522a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Ability to perform any filesystem operation other than statfs(2). 3532a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# i.e. no mount(2), unmount(2), etc. 3542a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } fs_type:filesystem ~getattr; 3552a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3562a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Ability to set system properties. 3572a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -radio -shell -bluetooth -unconfineddomain } 3582a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley property_type:property_service set; 359