73d0a67b06
all_untrusted_apps apart from untrusted_app_{25, 27} and mediaprovider
are now expected to go to ashmemd for /dev/ashmem fds.
Give coredomain access to ashmemd, because ashmemd is the default way
for coredomain to get a /dev/ashmem fd.
Bug: 113362644
Test: device boots, ashmemd running
Test: Chrome app works
Test: "lsof /system/lib64/libashmemd_client.so" shows
libashmemd_client.so being loaded into apps.
Change-Id: I279448c3104c5d08a1fefe31730488924ce1b37a
62 lines
2.8 KiB
Text
62 lines
2.8 KiB
Text
###
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### Untrusted_app_25
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###
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### This file defines the rules for untrusted apps running with
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### targetSdkVersion <= 25.
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###
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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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typeattribute untrusted_app_25 coredomain;
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app_domain(untrusted_app_25)
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untrusted_app_domain(untrusted_app_25)
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net_domain(untrusted_app_25)
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bluetooth_domain(untrusted_app_25)
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# b/34115651, b/33308258 - 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_25, net_dns_prop)
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auditallow untrusted_app_25 net_dns_prop:file read;
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# b/35917228 - /proc/misc access
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# This will go away in a future Android release
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allow untrusted_app_25 proc_misc: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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# This will go away in a future Android release
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allow untrusted_app_25 proc_tty_drivers:file r_file_perms;
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# Text relocation support for API < 23
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# https://android.googlesource.com/platform/bionic/+/master/android-changes-for-ndk-developers.md#text-relocations-enforced-for-api-level-23
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allow untrusted_app_25 { apk_data_file app_data_file asec_public_file }:file execmod;
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# The ability to call exec() on files in the apps home directories
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# for targetApi<=25. This is also allowed for targetAPIs 26, 27,
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# and 28 in untrusted_app_27.te.
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allow untrusted_app_25 app_data_file:file execute_no_trans;
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auditallow untrusted_app_25 app_data_file:file { execute execute_no_trans };
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# The ability to invoke dex2oat. Historically required by ART, now only
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# allowed for targetApi<=28 for compat reasons.
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allow untrusted_app_25 dex2oat_exec:file rx_file_perms;
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userdebug_or_eng(`auditallow untrusted_app_25 dex2oat_exec:file rx_file_perms;')
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# The ability to talk to /dev/ashmem directly. targetApi>=29 must use
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# ASharedMemory instead.
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allow untrusted_app_25 ashmem_device:chr_file rw_file_perms;
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