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- ###
- ### Untrusted_app_25
- ###
- ### This file defines the rules for untrusted apps running with
- ### targetSdkVersion <= 25.
- ###
- ### Apps are labeled based on mac_permissions.xml (maps signer and
- ### optionally package name to seinfo value) and seapp_contexts (maps UID
- ### and optionally seinfo value to domain for process and type for data
- ### directory). The untrusted_app domain is the default assignment in
- ### seapp_contexts for any app with UID between APP_AID (10000)
- ### and AID_ISOLATED_START (99000) if the app has no specific seinfo
- ### value as determined from mac_permissions.xml. In current AOSP, this
- ### domain is assigned to all non-system apps as well as to any system apps
- ### that are not signed by the platform key. To move
- ### a system app into a specific domain, add a signer entry for it to
- ### mac_permissions.xml and assign it one of the pre-existing seinfo values
- ### or define and use a new seinfo value in both mac_permissions.xml and
- ### seapp_contexts.
- ###
- typeattribute untrusted_app_25 coredomain;
- app_domain(untrusted_app_25)
- untrusted_app_domain(untrusted_app_25)
- net_domain(untrusted_app_25)
- bluetooth_domain(untrusted_app_25)
- # b/34115651, b/33308258 - net.dns* properties read
- # This will go away in a future Android release
- get_prop(untrusted_app_25, net_dns_prop)
- auditallow untrusted_app_25 net_dns_prop:file read;
- # b/35917228 - /proc/misc access
- # This will go away in a future Android release
- allow untrusted_app_25 proc_misc:file r_file_perms;
- # Access to /proc/tty/drivers, to allow apps to determine if they
- # are running in an emulated environment.
- # b/33214085 b/33814662 b/33791054 b/33211769
- # https://github.com/strazzere/anti-emulator/blob/master/AntiEmulator/src/diff/strazzere/anti/emulator/FindEmulator.java
- # This will go away in a future Android release
- allow untrusted_app_25 proc_tty_drivers:file r_file_perms;
- # Text relocation support for API < 23. This is now disallowed for targetSdkVersion>=Q.
- # https://android.googlesource.com/platform/bionic/+/master/android-changes-for-ndk-developers.md#text-relocations-enforced-for-api-level-23
- allow untrusted_app_25 { apk_data_file app_data_file asec_public_file }:file execmod;
- # The ability to call exec() on files in the apps home directories
- # for targetApi<=25. This is also allowed for targetAPIs 26, 27,
- # and 28 in untrusted_app_27.te.
- allow untrusted_app_25 app_data_file:file execute_no_trans;
- auditallow untrusted_app_25 app_data_file:file { execute execute_no_trans };
- # The ability to invoke dex2oat. Historically required by ART, now only
- # allowed for targetApi<=28 for compat reasons.
- allow untrusted_app_25 dex2oat_exec:file rx_file_perms;
- userdebug_or_eng(`auditallow untrusted_app_25 dex2oat_exec:file rx_file_perms;')
- # The ability to talk to /dev/ashmem directly. targetApi>=29 must use
- # ASharedMemory instead.
- allow untrusted_app_25 ashmem_device:chr_file rw_file_perms;
- auditallow untrusted_app_25 ashmem_device:chr_file open;
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