app.te revision 91a4f8d4fdab7df8474c2ffaa996c879166d8a4c
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; 12e7ec2f5258550a2cc0cb8c76ef24fc100a6b2cf1Stephen Smalleyallow appdomain ashmem_device:chr_file execute; 13ad7df7bb76ce00cdef711ad1f96a9a7243981f4eStephen Smalley 146634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Receive and use open file descriptors inherited from zygote. 156634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote:fd use; 166634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1748759ca2054fa742724cd81debed51208b69e758Stephen Smalley# gdbserver for ndk-gdb reads the zygote. 1848759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain zygote_exec:file r_file_perms; 1948759ca2054fa742724cd81debed51208b69e758Stephen Smalley 2048759ca2054fa742724cd81debed51208b69e758Stephen Smalley# gdbserver for ndk-gdb ptrace attaches to app process. 2148759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain self:process ptrace; 2248759ca2054fa742724cd81debed51208b69e758Stephen Smalley 236634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Read system properties managed by zygote. 246634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote_tmpfs:file read; 256634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 266634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Notify zygote of death; 276634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain zygote:process sigchld; 286634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2948759ca2054fa742724cd81debed51208b69e758Stephen Smalley# Notify shell and adbd of death when spawned via runas for ndk-gdb. 3048759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain shell:process sigchld; 3148759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain adbd:process sigchld; 3248759ca2054fa742724cd81debed51208b69e758Stephen Smalley 3348759ca2054fa742724cd81debed51208b69e758Stephen Smalley# child shell or gdbserver pty access for runas. 3448759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain devpts:chr_file { getattr read write ioctl }; 3548759ca2054fa742724cd81debed51208b69e758Stephen Smalley 363dad7b611a448fa43a678ff760c23a00f387947eStephen Smalley# Use pipes and sockets provided by system_server via binder or local socket. 371fdee11df2552e29da0c48e3432f26f7a93e3bffAlex Klyubinallow appdomain system_server:fifo_file rw_file_perms; 383dad7b611a448fa43a678ff760c23a00f387947eStephen Smalleyallow appdomain system_server:unix_stream_socket { read write setopt getattr getopt shutdown }; 393dad7b611a448fa43a678ff760c23a00f387947eStephen Smalleyallow appdomain system_server:tcp_socket { read write getattr getopt shutdown }; 406634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 4182fc3b524164588388aa3595bd2158020d93d28aNick Kralevich# Communication with other apps via fifos 4282fc3b524164588388aa3595bd2158020d93d28aNick Kralevichallow appdomain appdomain:fifo_file rw_file_perms; 4382fc3b524164588388aa3595bd2158020d93d28aNick Kralevich 446634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Communicate with surfaceflinger. 45b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalleyallow appdomain surfaceflinger:unix_stream_socket { read write setopt getattr getopt shutdown }; 466634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 476634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# App sandbox file accesses. 486634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain app_data_file:dir create_dir_perms; 4965317124a0bb7db4829f78e74c7bfe18e27f1c43Stephen Smalleyallow appdomain app_data_file:notdevfile_class_set create_file_perms; 506634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 516634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# lib subdirectory of /data/data dir is system-owned. 526634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_data_file:dir r_dir_perms; 5348759ca2054fa742724cd81debed51208b69e758Stephen Smalleyallow appdomain system_data_file:file { execute execute_no_trans open }; 546634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 556736bac21870bdc8bb6098ddffdb70103f7bc2a3Jeff Sharkey# Access to OEM provided data and apps 566736bac21870bdc8bb6098ddffdb70103f7bc2a3Jeff Sharkeyallow appdomain oemfs:dir r_dir_perms; 576736bac21870bdc8bb6098ddffdb70103f7bc2a3Jeff Sharkeyallow appdomain oemfs:file rx_file_perms; 586736bac21870bdc8bb6098ddffdb70103f7bc2a3Jeff Sharkey 596634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Execute the shell or other system executables. 606634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain shell_exec:file rx_file_perms; 616634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_file:file rx_file_perms; 626634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 636634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Read/write wallpaper file (opened by system). 64fc4c6b798a0c8ff38b4b943209ba1653a0276dfaRobert Craigallow appdomain wallpaper_file:file { getattr read write }; 656634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 666634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /data/anr/traces.txt. 676634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain anr_data_file:dir search; 686634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain anr_data_file:file { open append }; 696634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 7009e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevich# Allow apps to send dump information to dumpstate 7109e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevichallow appdomain dumpstate:fd use; 72b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalleyallow appdomain dumpstate:unix_stream_socket { read write getopt getattr shutdown }; 732e7a301fad5b6065e2d364170a80bc58bc41aab0Nick Kralevichallow appdomain shell_data_file:file { write getattr }; 7409e6abd91b3aaaa11a44d032e095360c64a97b3aNick Kralevich 756634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /proc/net/xt_qtaguid/ctrl file. 766634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain qtaguid_proc:file rw_file_perms; 776634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Everybody can read the xt_qtaguid resource tracking misc dev. 786634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# So allow all apps to read from /dev/xt_qtaguid. 796634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain qtaguid_device:chr_file r_file_perms; 806634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 813ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley# Grant GPU access to all processes started by Zygote. 823ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley# They need that to render the standard UI. 833ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalleyallow appdomain gpu_device:chr_file { rw_file_perms execute }; 843ba9012535d8412d94db4ae9a5ce928b806e26d8Stephen Smalley 856634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Use the Binder. 866634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_use(appdomain) 876634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Perform binder IPC to binder services. 886634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, binderservicedomain) 896634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Perform binder IPC to other apps. 906634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichbinder_call(appdomain, appdomain) 916634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 926634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Already connected, unnamed sockets being passed over some other IPC 936634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# hence no sock_file or connectto permission. This appears to be how 946634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Chrome works, may need to be updated as more apps using isolated services 956634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# are examined. 96b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalleyallow appdomain appdomain:unix_stream_socket { getopt getattr read write shutdown }; 976634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 986634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Backup ability for every app. BMS opens and passes the fd 996634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# to any app that has backup ability. Hence, no open permissions here. 10081560733a47633036133ce548bf638bc3d91f5cfGeremy Condraallow appdomain backup_data_file:file { read write getattr }; 10181560733a47633036133ce548bf638bc3d91f5cfGeremy Condraallow appdomain cache_backup_file:file { read write getattr }; 1029ba844fea12a0b08770e870d63f3d3c375c7c9b5Stephen Smalleyallow appdomain cache_backup_file:dir getattr; 1036634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Backup ability using 'adb backup' 1046634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichallow appdomain system_data_file:lnk_file getattr; 1056634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1062737ceff233a32be67ebc6e3dba6e80b8df6df0aStephen Smalley# Allow read/stat of /data/media files passed by Binder or local socket IPC. 1072737ceff233a32be67ebc6e3dba6e80b8df6df0aStephen Smalleyallow appdomain media_rw_data_file:file { read getattr }; 1082737ceff233a32be67ebc6e3dba6e80b8df6df0aStephen Smalley 1091545b6061518bac473cf93af576cbea12a992298Nick Kralevich# Read and write /data/data/com.android.providers.telephony files passed over Binder. 1101545b6061518bac473cf93af576cbea12a992298Nick Kralevichallow appdomain radio_data_file:file { read write getattr }; 1113fbc536dfd5afbce5ef45f18d0afb3516089ed88Stephen Smalley 11291a4f8d4fdab7df8474c2ffaa996c879166d8a4cStephen Smalley# Read and write system app data files passed over Binder. 11391a4f8d4fdab7df8474c2ffaa996c879166d8a4cStephen Smalley# Motivating case was /data/data/com.android.settings/cache/*.jpg for 11491a4f8d4fdab7df8474c2ffaa996c879166d8a4cStephen Smalley# cropping or taking user photos. 11591a4f8d4fdab7df8474c2ffaa996c879166d8a4cStephen Smalleyallow untrusted_app system_app_data_file:file { read write getattr }; 11691a4f8d4fdab7df8474c2ffaa996c879166d8a4cStephen Smalley 117b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalley# Access SDcard. 118b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalleyallow appdomain sdcard_type:dir create_dir_perms; 119b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalleyallow appdomain sdcard_type:file create_file_perms; 120b0db712bf048dc634363b658a647b1f1897d8433Stephen Smalley 1210b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# Allow apps to use the USB Accessory interface. 1220b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# http://developer.android.com/guide/topics/connectivity/usb/accessory.html 1230b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# 1240b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# USB devices are first opened by the system server (USBDeviceManagerService) 1250b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich# and the file descriptor is passed to the right Activity via binder. 1260b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevichallow appdomain usb_device:chr_file { read write getattr ioctl }; 1270b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevichallow appdomain usbaccessory_device:chr_file { read write getattr }; 1280b8c20e7ddce7cf791447f15be540ee2d0a6bfb2Nick Kralevich 129527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalley# For art. 130527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalleyallow appdomain dalvikcache_data_file:file execute; 131527316a21b80c2a70d8ed23351299a4dce0c77bfStephen Smalley 13219c509034ee309c60c958637841c151d3c273421Stephen Smalley# /data/dalvik-cache/profiles 13319c509034ee309c60c958637841c151d3c273421Stephen Smalleyallow appdomain dalvikcache_profiles_data_file:file write; 13419c509034ee309c60c958637841c151d3c273421Stephen Smalley 135959fdaaa25d7dbfad8a1900dfe9575f873cea649Stephen Smalley# For legacy unlabeled userdata on existing devices. 136959fdaaa25d7dbfad8a1900dfe9575f873cea649Stephen Smalley# See discussion of Unlabeled files in domain.te for more information. 137959fdaaa25d7dbfad8a1900dfe9575f873cea649Stephen Smalleyallow appdomain unlabeled:file x_file_perms; 1382562843425bb5f13e42b8605a1568308c6faff71Stephen Smalleyauditallow appdomain unlabeled:file x_file_perms; 139959fdaaa25d7dbfad8a1900dfe9575f873cea649Stephen Smalley 1406634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 141594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### CTS-specific rules 142594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### 143594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 144594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tools/device-setup/TestDeviceSetup/src/android/tests/getinfo/RootProcessScanner.java. 145594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Reads /proc/pid/status and statm entries to check that 146594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# no unexpected root processes are running. 147594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Also for cts/tests/tests/security/src/android/security/cts/VoldExploitTest.java 148594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Reads /proc/pid/cmdline of vold. 149594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:dir { open read search getattr }; 150594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:{ file lnk_file } { open read getattr }; 151594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 152594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tests/tests/permission/src/android/permission/cts/FileSystemPermissionTest.java. 153594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# testRunAsHasCorrectCapabilities 154594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain runas_exec:file getattr; 155594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Others are either allowed elsewhere or not desired. 156594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 157594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# For cts/tests/tests/security/src/android/security/cts/SELinuxTest.java 158594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Check SELinux policy and contexts. 159594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyselinux_check_access(appdomain) 160594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyselinux_check_context(appdomain) 161594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley# Validate that each process is running in the correct security context. 162594693705f0d5768db3c3212037da5fd5d5653beStephen Smalleyallow appdomain domain:process getattr; 163594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley 1648ed750e9731e6e3a21785e91e9b1cf7390c16738Mark Salyzyn# logd access 1658ed750e9731e6e3a21785e91e9b1cf7390c16738Mark Salyzynread_logd(appdomain) 1668ed750e9731e6e3a21785e91e9b1cf7390c16738Mark Salyzyn# application inherit logd write socket (urge is to deprecate this long term) 1678ed750e9731e6e3a21785e91e9b1cf7390c16738Mark Salyzynallow appdomain zygote:unix_dgram_socket write; 1688ed750e9731e6e3a21785e91e9b1cf7390c16738Mark Salyzyn 169594693705f0d5768db3c3212037da5fd5d5653beStephen Smalley### 1706634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### Neverallow rules 1716634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 1726634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### These are things that Android apps should NEVER be able to do 1736634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich### 1746634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1756634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Superuser capabilities. 1762a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# bluetooth requires net_admin. 1772a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain -bluetooth } self:capability *; 1786634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } self:capability2 *; 1796634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1806634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Block device access. 1816634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } dev_type:blk_file { read write }; 1826634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 1832a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to any of the following character devices. 1842a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } { 1852a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley audio_device 1862a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley camera_device 1872a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley dm_device 1882a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley radio_device 1892a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley gps_device 1902a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley rpmsg_device 1912a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley}:chr_file { read write }; 1922a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 1932a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Note: Try expanding list of app domains in the future. 1942a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { untrusted_app isolated_app shell -unconfineddomain } 1952a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley graphics_device:chr_file { read write }; 1962a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 1972a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -nfc -unconfineddomain } nfc_device:chr_file 1982a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { read write }; 1992a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -unconfineddomain } hci_attach_dev:chr_file 2002a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { read write }; 2012a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } tee_device:chr_file { read write }; 2022a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2036634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Privileged netlink socket interfaces. 2046634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } 2056634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich self:{ 2066634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_socket 2076634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_firewall_socket 2086634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_tcpdiag_socket 2096634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_nflog_socket 2106634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_xfrm_socket 2116634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_audit_socket 2126634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_ip6fw_socket 2136634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_dnrt_socket 2146634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich netlink_kobject_uevent_socket 2156634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich } *; 2166634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2172a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Sockets under /dev/socket that are not specifically typed. 2182a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } socket_device:sock_file write; 2192a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2202a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Unix domain sockets. 2212a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } adbd_socket:sock_file write; 2222a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } installd_socket:sock_file write; 2232a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -radio -shell -system_app -unconfineddomain } 2242a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley property_socket:sock_file write; 2252a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -radio -unconfineddomain } rild_socket:sock_file write; 2262a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } vold_socket:sock_file write; 2272a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } zygote_socket:sock_file write; 2282a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2296634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# ptrace access to non-app domains. 2306634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevichneverallow { appdomain -unconfineddomain } { domain -appdomain }:process ptrace; 2316634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2322a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write access to /proc/pid entries for any non-app domain. 23373c5ea722c7ee328f0d10179601afd9d5a054b94Nick Kralevichneverallow { appdomain -unconfineddomain } { domain -appdomain }:file write; 2342a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2352a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# signal access to non-app domains. 2362a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# sigchld allowed for parent death notification. 2372a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# signull allowed for kill(pid, 0) existence test. 2382a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# All others prohibited. 2392a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } { domain -appdomain }:process 2402a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { sigkill sigstop signal }; 2412a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2426634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Transition to a non-app domain. 243396015c3952bcbd5678dc20d5e5e4407cf6a4d4aStephen Smalley# Exception for the shell domain, can transition to runas, etc. 24457085446eb49777189123a994884f76b8491ed26Stephen Smalleyneverallow { appdomain -shell -unconfineddomain } ~appdomain:process 2452a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { transition dyntransition }; 2462a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2472a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Map low memory. 2482a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Note: Take to domain.te and apply to all domains in the future. 2492a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } self:memprotect mmap_zero; 2502a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2512a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to rootfs. 2522a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } rootfs:dir_file_class_set 2532a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2546634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2556634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to /system. 2562a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } system_file:dir_file_class_set 2572a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2582a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2592a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to entrypoint executables. 2602a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } exec_type:file 2612a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2626634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich 2636634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Write to system-owned parts of /data. 2646634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# This is the default type for anything under /data not otherwise 2656634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# specified in file_contexts. Define a different type for portions 2666634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# that should be writable by apps. 2676634a1080e6617854d0b29bc65bb1c852ad3d5b6Nick Kralevich# Exception for system_app for Settings. 2682a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain -system_app } 2692a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley system_data_file:dir_file_class_set 2702a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2712a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 2722a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to various other parts of /data. 2732a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -unconfineddomain } 2742a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley security_file:dir_file_class_set 2752a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2762a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } drm_data_file:dir_file_class_set 2772a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2782a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } gps_data_file:dir_file_class_set 2792a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2802a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 2812a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_data_file:dir_file_class_set 2822a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2832a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 2842a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_tmp_file:dir_file_class_set 2852a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2862a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 2872a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_private_data_file:dir_file_class_set 2882a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2892a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -platform_app -unconfineddomain } 2902a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley apk_private_tmp_file:dir_file_class_set 2912a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2922a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -shell -unconfineddomain } 2932a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley shell_data_file:dir_file_class_set 2942e7a301fad5b6065e2d364170a80bc58bc41aab0Nick Kralevich { create setattr relabelfrom relabelto append unlink link rename }; 2952a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -bluetooth -unconfineddomain } 2962a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley bluetooth_data_file:dir_file_class_set 2972a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 2982a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 2992a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley keystore_data_file:dir_file_class_set 3002a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3012a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3022a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley systemkeys_data_file:dir_file_class_set 3032a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3042a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3052a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley wifi_data_file:dir_file_class_set 3062a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3072a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3082a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley dhcp_data_file:dir_file_class_set 3092a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley { create write setattr relabelfrom relabelto append unlink link rename }; 3102a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3112a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to factory files. 3122a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3132a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley efs_file:dir_file_class_set { read write }; 3142a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3152a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Write to various pseudo file systems. 316df8af76f2678e3ea63e83701ac4b5afec24adf9fStephen Smalleyneverallow { appdomain -bluetooth -nfc -unconfineddomain } 3172a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley sysfs:dir_file_class_set write; 3182a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } 3192a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley proc:dir_file_class_set write; 3202a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3212a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Access to syslog(2) or /proc/kmsg. 3222a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -unconfineddomain } 3232a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley kernel:system { syslog_read syslog_mod syslog_console }; 3242a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3252a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Ability to perform any filesystem operation other than statfs(2). 3262a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# i.e. no mount(2), unmount(2), etc. 3272a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -unconfineddomain } fs_type:filesystem ~getattr; 3282a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley 3292a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley# Ability to set system properties. 3302a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalleyneverallow { appdomain -system_app -radio -shell -bluetooth -unconfineddomain } 3312a273ad2c50b255985a71e92898ac9224a9d2bd7Stephen Smalley property_type:property_service set; 332