platform_system_sepolicy/private/untrusted_app_25.te
Yabin Cui 5dc2c8c740 Revert "Revert "Enforce execve() restrictions for API > 28""
This reverts commit 15d1a12f7f.

Bug: 118737210
Bug: 112357170
Test: boot marlin
Change-Id: Idcfab04b48f843eead4efa9f58a1337c6685c6ca
2018-11-07 18:07:18 +00:00

51 lines
2.3 KiB
Text

###
### 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 - net.dns* properties read
# This will go away in a future Android release
get_prop(untrusted_app_25, net_dns_prop)
# 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
# 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;