android_system_sepolicy/private/untrusted_v2_app.te
Alex Klyubin f5446eb148 Vendor domains must not use Binder
On PRODUCT_FULL_TREBLE devices, non-vendor domains (except vendor
apps) are not permitted to use Binder. This commit thus:
* groups non-vendor domains using the new "coredomain" attribute,
* adds neverallow rules restricting Binder use to coredomain and
  appdomain only, and
* temporarily exempts the domains which are currently violating this
  rule from this restriction. These domains are grouped using the new
  "binder_in_vendor_violators" attribute. The attribute is needed
  because the types corresponding to violators are not exposed to the
  public policy where the neverallow rules are.

Test: mmm system/sepolicy
Test: Device boots, no new denials
Test: In Chrome, navigate to ip6.me, play a YouTube video
Test: YouTube: play a video
Test: Netflix: play a movie
Test: Google Camera: take a photo, take an HDR+ photo, record video with
      sound, record slow motion video with sound. Confirm videos play
      back fine and with sound.
Bug: 35870313
Change-Id: I0cd1a80b60bcbde358ce0f7a47b90f4435a45c95
2017-03-24 07:54:00 -07:00

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###
### Untrusted v2 sandbox apps.
###
typeattribute untrusted_v2_app coredomain;
app_domain(untrusted_v2_app)
net_domain(untrusted_v2_app)
bluetooth_domain(untrusted_v2_app)
# Read and write system app data files passed over Binder.
# Motivating case was /data/data/com.android.settings/cache/*.jpg for
# cropping or taking user photos.
allow untrusted_v2_app system_app_data_file:file { read write getattr };
# Access to /data/media.
allow untrusted_v2_app media_rw_data_file:dir create_dir_perms;
allow untrusted_v2_app media_rw_data_file:file create_file_perms;
# Traverse into /mnt/media_rw for bypassing FUSE daemon
# TODO: narrow this to just MediaProvider
allow untrusted_v2_app mnt_media_rw_file:dir search;
# allow cts to query all services
allow untrusted_v2_app servicemanager:service_manager list;
allow untrusted_v2_app audioserver_service:service_manager find;
allow untrusted_v2_app cameraserver_service:service_manager find;
allow untrusted_v2_app drmserver_service:service_manager find;
allow untrusted_v2_app mediaserver_service:service_manager find;
allow untrusted_v2_app mediaextractor_service:service_manager find;
allow untrusted_v2_app mediacodec_service:service_manager find;
allow untrusted_v2_app mediametrics_service:service_manager find;
allow untrusted_v2_app mediadrmserver_service:service_manager find;
allow untrusted_v2_app mediacasserver_service:service_manager find;
allow untrusted_v2_app nfc_service:service_manager find;
allow untrusted_v2_app radio_service:service_manager find;
allow untrusted_v2_app surfaceflinger_service:service_manager find;
# TODO: potentially provide a tighter list of services here
allow untrusted_v2_app app_api_service:service_manager find;
# gdbserver for ndk-gdb ptrace attaches to app process.
allow untrusted_v2_app self:process ptrace;