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David Brazdil authored
Remove the permission to execute dex2oat from apps targetSdkVersion>28. This has been historically used by ART to compile secondary dex files but that functionality has been removed in Q and the permission is therefore not needed. Some legacy apps do invoke dex2oat directly. Hence allow (with audit) for targetSdkVersion<= 28. Test: atest CtsSelinuxTargetSdk25TestCases Test: atest CtsSelinuxTargetSdk27TestCases Test: atest CtsSelinuxTargetSdkCurrentTestCases Bug: 117606664 Change-Id: I2ea9cd56861fcf280cab388a251aa53e618160e5
535c5d2b
untrusted_app_27.te 1.58 KiB
###
### Untrusted_27.
###
### This file defines the rules for untrusted apps running with
### 25 < targetSdkVersion <= 28.
###
### This file defines the rules for untrusted apps.
### 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_27 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_27 coredomain;
app_domain(untrusted_app_27)
untrusted_app_domain(untrusted_app_27)
net_domain(untrusted_app_27)
bluetooth_domain(untrusted_app_27)
# The ability to call exec() on files in the apps home directories
# for targetApi 26, 27, and 28.
allow untrusted_app_27 app_data_file:file execute_no_trans;
# The ability to invoke dex2oat. Historically required by ART, now only
# allowed for targetApi<=28 for compat reasons.
allow untrusted_app_27 dex2oat_exec:file rx_file_perms;
auditallow untrusted_app_27 dex2oat_exec:file rx_file_perms;