2017-01-05 12:27:10 -08:00
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###
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### Untrusted apps.
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###
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### This file defines the rules for untrusted apps.
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### Apps are labeled based on mac_permissions.xml (maps signer and
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### optionally package name to seinfo value) and seapp_contexts (maps UID
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### and optionally seinfo value to domain for process and type for data
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### directory). The untrusted_app domain is the default assignment in
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### seapp_contexts for any app with UID between APP_AID (10000)
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### and AID_ISOLATED_START (99000) if the app has no specific seinfo
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### value as determined from mac_permissions.xml. In current AOSP, this
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### domain is assigned to all non-system apps as well as to any system apps
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### that are not signed by the platform key. To move
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### a system app into a specific domain, add a signer entry for it to
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### mac_permissions.xml and assign it one of the pre-existing seinfo values
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### or define and use a new seinfo value in both mac_permissions.xml and
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### seapp_contexts.
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###
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2016-12-08 11:23:34 -08:00
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app_domain(untrusted_app)
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2017-01-05 12:27:10 -08:00
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net_domain(untrusted_app)
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bluetooth_domain(untrusted_app)
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2016-10-12 14:58:09 -07:00
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2017-02-09 16:08:11 -08:00
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# b/34115651 - net.dns* properties read
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# This will go away in a future Android release
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get_prop(untrusted_app, net_dns_prop)
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2016-10-12 14:58:09 -07:00
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# Allow the allocation and use of ptys
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# Used by: https://play.google.com/store/apps/details?id=jackpal.androidterm
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create_pty(untrusted_app)
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2017-01-05 12:27:10 -08:00
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# Legacy text relocations
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allow untrusted_app apk_data_file:file execmod;
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# Some apps ship with shared libraries and binaries that they write out
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# to their sandbox directory and then execute.
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allow untrusted_app app_data_file:file { rx_file_perms execmod };
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# ASEC
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allow untrusted_app asec_apk_file:file r_file_perms;
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allow untrusted_app asec_apk_file:dir r_dir_perms;
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# Execute libs in asec containers.
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allow untrusted_app asec_public_file:file { execute execmod };
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# Used by Finsky / Android "Verify Apps" functionality when
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# running "adb install foo.apk".
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# TODO: Long term, we don't want apps probing into shell data files.
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# Figure out a way to remove these rules.
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allow untrusted_app shell_data_file:file r_file_perms;
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allow untrusted_app shell_data_file:dir r_dir_perms;
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# Read and write system app data files passed over Binder.
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# Motivating case was /data/data/com.android.settings/cache/*.jpg for
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# cropping or taking user photos.
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allow untrusted_app system_app_data_file:file { read write getattr };
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#
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# Rules migrated from old app domains coalesced into untrusted_app.
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# This includes what used to be media_app, shared_app, and release_app.
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#
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# Access to /data/media.
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allow untrusted_app media_rw_data_file:dir create_dir_perms;
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allow untrusted_app media_rw_data_file:file create_file_perms;
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# Traverse into /mnt/media_rw for bypassing FUSE daemon
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# TODO: narrow this to just MediaProvider
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allow untrusted_app mnt_media_rw_file:dir search;
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# allow cts to query all services
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allow untrusted_app servicemanager:service_manager list;
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allow untrusted_app audioserver_service:service_manager find;
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allow untrusted_app cameraserver_service:service_manager find;
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allow untrusted_app drmserver_service:service_manager find;
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allow untrusted_app mediaserver_service:service_manager find;
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allow untrusted_app mediaextractor_service:service_manager find;
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allow untrusted_app mediacodec_service:service_manager find;
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2017-01-24 12:53:45 -08:00
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allow untrusted_app mediametrics_service:service_manager find;
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2017-01-05 12:27:10 -08:00
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allow untrusted_app mediadrmserver_service:service_manager find;
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allow untrusted_app nfc_service:service_manager find;
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allow untrusted_app radio_service:service_manager find;
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allow untrusted_app surfaceflinger_service:service_manager find;
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allow untrusted_app app_api_service:service_manager find;
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2017-02-07 15:49:48 -08:00
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allow untrusted_app vr_manager_service:service_manager find;
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2017-01-05 12:27:10 -08:00
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# Allow GMS core to access perfprofd output, which is stored
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# in /data/misc/perfprofd/. GMS core will need to list all
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# data stored in that directory to process them one by one.
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userdebug_or_eng(`
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allow untrusted_app perfprofd_data_file:file r_file_perms;
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allow untrusted_app perfprofd_data_file:dir r_dir_perms;
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')
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# gdbserver for ndk-gdb ptrace attaches to app process.
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allow untrusted_app self:process ptrace;
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# Cts: HwRngTest
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allow untrusted_app sysfs_hwrandom:dir search;
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allow untrusted_app sysfs_hwrandom:file r_file_perms;
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# Allow apps to view preloaded content
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allow untrusted_app preloads_data_file:dir r_dir_perms;
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allow untrusted_app preloads_data_file:file r_file_perms;
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# Access to /proc/tty/drivers, to allow apps to determine if they
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# are running in an emulated environment.
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# b/33214085 b/33814662 b/33791054 b/33211769
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# https://github.com/strazzere/anti-emulator/blob/master/AntiEmulator/src/diff/strazzere/anti/emulator/FindEmulator.java
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allow untrusted_app proc_tty_drivers:file r_file_perms;
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