Update SE Policy to allow calls to and callbacks for the Tether Offload HAL
HIDL binderized service.

Bug: 38417260
Test: New functionality. So we don't have any tests.
Change-Id: I2c95b290523c55c081afa1bca091f368559c9125

Bug: 35628284
Change-Id: I08877ac117212325b1259f7d90a4c0cb1dac2d9f
Fix: 38233550
Test: Build and boot
Merged-In: I4cdacb601e0eea1f5f0e721c568c7ee04298704f

Bug: 34766843
Change-Id: I5be615d818ecf999fec6514ce9b89ff6a7f13cd6
Fix: 38232801
Test: Build and boot
Merged-In: Ice78aedfdbe82477a84252499a76dad37887fe6b

With build/core eaa9d88cf, system_server should not be loading code
from /data.

https://bugs.chromium.org/p/project-zero/issues/detail?id=955

Bug: 37214733
Bug: 31780877
Test: Device boots and no obvious problems.
Test: No collected SELinux denials for build-server generated builds.
Change-Id: I37b1e9e6c4555c937730ab491b6c38801b38ad38

Under ASAN, allow system-server to execute app_process. This is
required for wrap-property execution.

Bug: 36138508
Test: m && SANITIZE_TARGET m
Change-Id: Ic637e5205ea86e0edcd66ab387e89b27afef6b99

Test: bit FrameworksCoreTests:android.view.textclassifier.TextClassificationManagerTest
Bug: 34780396
Change-Id: I8b98fef913df571e55474ea2529f71750874941c

Bluetooth needs the capability to set audio-related threads to be RT
scheduled.  Grant it sys_nice.

system_server needs to set priority for the Bluetooth HAL.  Allow it.

Bug 37518404
Test:  Play Bluetooth audio, confirm RT scheduling with systrace
Merged-In: Iaf7b85a11a51883744d72a50addfd320b6fbbc2f
Change-Id: Iaf7b85a11a51883744d72a50addfd320b6fbbc2f

(cherry picked from commit 6eee6eb2)

Bluetooth needs the capability to set audio-related threads to be RT
scheduled.  Grant it sys_nice.

system_server needs to set priority for the Bluetooth HAL.  Allow it.

Bug 37518404
Test:  Play Bluetooth audio, confirm RT scheduling with systrace
Change-Id: Iaf7b85a11a51883744d72a50addfd320b6fbbc2f

vr_wm functionality is moved in VrCore, so remove this service.

Bug: 37542947, 36506799
Test: Ran on device and verified there are no permission errors while in
VR
Change-Id: I37fd34e96babec2a990600907f61da8c358ecc89

Bug: 37152880
Bug: 37554633
Test: adb shell am hang --allow-restart
Test: adb shell dumpstate
Change-Id: Ie68607f3e3245a40056bdde7dd810ddf212b4295

This adds fine-grained policy about who can register and find which
HwBinder services in hwservicemanager.

Test: Play movie in Netflix and Google Play Movies
Test: Play video in YouTube app and YouTube web page
Test: In Google Camera app, take photo (HDR+ and conventional),
      record video (slow motion and normal), and check that photos
      look fine and videos play back with sound.
Test: Cast screen to a Google Cast device
Test: Get location fix in Google Maps
Test: Make and receive a phone call, check that sound works both ways
      and that disconnecting the call frome either end works fine.
Test: Run RsHelloCompute RenderScript demo app
Test: Run fast subset of media CTS tests:
      make and install CtsMediaTestCases.apk
      adb shell am instrument -e size small \
          -w 'android.media.cts/android.support.test.runner.AndroidJUnitRunner'
Test: Play music using Google Play music
Test: Adjust screen brightness via the slider in Quick Settings
Test: adb bugreport
Test: Enroll in fingerprint screen unlock, unlock screen using
      fingerprint
Test: Apply OTA update:
      Make some visible change, e.g., rename Settings app.
      make otatools && \
      make dist
      Ensure device has network connectivity
      ota_call.py -s <serial here> --file out/dist/sailfish-ota-*.zip
      Confirm the change is now live on the device
Bug: 34454312
(cherry picked from commit 632bc494)
Merged-In: Iecf74000e6c68f01299667486f3c767912c076d3
Change-Id: I7a9a487beaf6f30c52ce08e04d415624da49dd31

This adds fine-grained policy about who can register and find which
HwBinder services in hwservicemanager.

Test: Play movie in Netflix and Google Play Movies
Test: Play video in YouTube app and YouTube web page
Test: In Google Camera app, take photo (HDR+ and conventional),
      record video (slow motion and normal), and check that photos
      look fine and videos play back with sound.
Test: Cast screen to a Google Cast device
Test: Get location fix in Google Maps
Test: Make and receive a phone call, check that sound works both ways
      and that disconnecting the call frome either end works fine.
Test: Run RsHelloCompute RenderScript demo app
Test: Run fast subset of media CTS tests:
      make and install CtsMediaTestCases.apk
      adb shell am instrument -e size small \
          -w 'android.media.cts/android.support.test.runner.AndroidJUnitRunner'
Test: Play music using Google Play music
Test: Adjust screen brightness via the slider in Quick Settings
Test: adb bugreport
Test: Enroll in fingerprint screen unlock, unlock screen using
      fingerprint
Test: Apply OTA update:
      Make some visible change, e.g., rename Settings app.
      make otatools && \
      make dist
      Ensure device has network connectivity
      ota_call.py -s <serial here> --file out/dist/sailfish-ota-*.zip
      Confirm the change is now live on the device
Bug: 34454312
Change-Id: Iecf74000e6c68f01299667486f3c767912c076d3

Add asanwrapper support for system server under sanitization.

Bug: 36138508
Test: m && m SANITIZE_TARGET=address SANITIZE_LITE=true
Test: adb root && adb shell setprop wrap.system_server asanwrapper
Change-Id: Id930690d2cfd8334c933e0ec5ac62f88850331d0

system_server needs to be able to read the file
last_reboot_reason to see if we need to show
a thermal notification to the user. This change
allows system_server to read, delete, and rename
the file.

Test: Manual
Bug: 30994946
Change-Id: Id73e18768f910c8de0bfc02f1b464e689f4b3955

This commit marks system_server and app domains (except isolated_app)
as clients of Graphics Allocator HAL. This makes the policy cleaner
and prepares ground for restricting access to HwBinder services.

Test: Play video in YouTube app and in Google Chrome YouTube web page
Test: Using Google Camera app, take an HDR+ photo, a conventional
      photo, record a video with sound and a slow motion video with
      sound, then check that photos look good and videos play back
      fine, including sound.
Bug: 34454312
Change-Id: Iea04d38fa5520432f06af94570fa6ce16ed7979a

The new binder_call() lines had to be added
because this change removes mediacodec from
binderservicedomain (on full-treble), hence
domains that could previously reach mediacodec
with binder_call(domain, binderservicedomain)
now need explicit calls instead.

Test: Youtube, Netflix, Maps, Chrome, Music
Change-Id: I3325ce20d9304bc07659fd435554cbcbacbc9829

Since hal_graphics_composer_default is now no longer
a member of binderservicedomain, these domains would
no longer be able to use filedescriptors from it.

Bug: 36569525
Bug: 35706331
Test: marlin boots, YouTube, Maps, Camera, video
Change-Id: I4c110cf7530983470ae079e4fbc8cf11aa0fab7f

All HALs which are represented by hal_* attributes in SELinux policy
are required to run in binderized mode on Treble devices. This commit
thus makes the SELinux policy for Treble devices no longer associate
domains in hal_x_client with hal_x attribute, which is what was
granting domains hosting clients of hal_x the rules needed to run this
HAL in-process. The result is that core components have now less
access.

This commit has no effect on non-Treble devices.

Test: Device boots -- no new denials
Test: Play movie using Google Play Movies and Netflix
Test: Play YouTube clip in YouTube app and in Chrome
Test: Unlock lock screen using fingerprint
Test: Using Google Camera, take a photo, an HDR+ photo, record a
      video with sound, a slow motion video with sound. Photos and
      videos display/play back fine (incl. sound).
Test: adb screencap
Test: $ monitor
      take screenshot
Test: In all tests, no deials to do with hal_*, except pre-existing
      denials to do with hal_gnss.
Bug: 37160141
Bug: 34274385
Bug: 34170079
Change-Id: I1ca91d43592b466114af13898f5909f41e59b521

With build/core eaa9d88cf, system_server should not be loading code
from /data. Add an auditallow rule to report violations.

Bug: 37214733
Test: Boot marlin, no SELinux audit lines for system_server.
Change-Id: I2e25eb144503274025bd4fc9bb519555851f6521
(cherry picked from commit 665128fa)

With build/core eaa9d88cf, system_server should not be loading code
from /data. Add an auditallow rule to report violations.

Bug: 37214733
Test: Boot marlin, no SELinux audit lines for system_server.
Change-Id: I2e25eb144503274025bd4fc9bb519555851f6521

Bug: 35628284
Test: Boot and call HAL from system_server
Change-Id: I4cdacb601e0eea1f5f0e721c568c7ee04298704f

Bug: 34766843
Test: Boot and call HAL from system_server
Change-Id: Ice78aedfdbe82477a84252499a76dad37887fe6b

Bug: 36562029
Test: m -j40 and CEC functionality works well
Change-Id: I5a693e65abdd5139a848d939149a475056cc41e8

The change makes 'vendor_overlay_file' accessible only to few platform
domains like idmap, system_server, zygote and appdomain.

The overlay files contains RROs (runtime resource overlays)

Bug: 36681210
Test: Boot sailfish (treble device) from wiped flashall
Test: Connect to wifi and launch chrome to load few websites.
Test: Launch camera and record + playback video

Change-Id: I3596ca89ad51d0e7d78c75121f22ea71209ee332
Signed-off-by: Sandeep Patil <sspatil@google.com>

The CL splits /vendor labeling from /system. Which was allowing all
processes read, execute access to /vendor.

Following directories will remain world readable
 /vendor/etc
 /vendor/lib(64)/hw/

Following are currently world readable but their scope
will be minimized to platform processes that require access
 /vendor/app
 /vendor/framework/
 /vendor/overlay

Files labelled with 'same_process_hal_file' are allowed to be
read + executed from by the world. This is for Same process HALs and
their dependencies.

Bug: 36527360
Bug: 36832490
Bug: 36681210
Bug: 36680116
Bug: 36690845
Bug: 36697328
Bug: 36696623
Bug: 36806861
Bug: 36656392
Bug: 36696623
Bug: 36792803

All of the tests were done on sailfish, angler, bullhead, dragon
Test: Boot and connect to wifi
Test: Run chrome and load websites, play video in youtube, load maps w/
      current location, take pictures and record video in camera,
      playback recorded video.
Test: Connect to BT headset and ensure BT audio playback works.
Test: OTA sideload using recovery
Test: CTS SELinuxHostTest pass

Change-Id: I278435b72f7551a28f3c229f720ca608b77a7029
Signed-off-by: Sandeep Patil <sspatil@google.com>

Update SE Policy to allow calls to and callbacks from Wifi Offload HAL
HIDL binderized service.
Cherry pick from d56aa1982d15acfc2408271138dac43f1e5dc987

Bug: 32842314
Test: Unit tests, Mannual test to ensure Wifi can be brought up and
connected to an AP, ensure that Offload HAL service is running and that
that wificond can get the service handle by calling hwservicemanager.

Change-Id: I0fc51a4152f1891c8d88967e75d45ded115e766e

Test: manual (verified no denials in basic telephony operations)
Bug: 36613472
Change-Id: I31274adee2cb6293102446cd2d6d547c50616836

Test: build, flash; adb shell lshal
Bug: 36562029
Change-Id: If8f6d8dbd99d31e6627fa4b7c1fd4faea3b75cf2

This futher restricts neverallows for sockets which may be exposed as
filesystem nodes. This is achieved by labelling all such sockets
created by core/non-vendor domains using the new coredomain_socket
attribute, and then adding neverallow rules targeting that attribute.

This has now effect on what domains are permitted to do. This only
changes neverallow rules.

Test: mmm system/sepolicy
Bug: 36577153

(cherry picked from commit cf2ffdf0)

Change-Id: Iffeee571a2ff61fb9515fa6849d060649636524e

This futher restricts neverallows for sockets which may be exposed as
filesystem nodes. This is achieved by labelling all such sockets
created by core/non-vendor domains using the new coredomain_socket
attribute, and then adding neverallow rules targeting that attribute.

This has now effect on what domains are permitted to do. This only
changes neverallow rules.

Test: mmm system/sepolicy
Bug: 36577153
Change-Id: I633163cf67d60677c4725b754e01097dd5790aed

*mac_permissions.xml files need to be explicitly labeled as they are now split
cross system and vendor and won't have the generic world readable
'system_file' or 'rootfs' label.

Bug: 36003167
Test: no new 'mac_perms_file' denials at boot complete on sailfish
Test: successfully booted into recovery without denials and sideloaded
      OTA update.
Test: Launch 'chrome' and succesfully load a website.
Test: Launch Camera and take a picture.
Test: Launch Camera and record a video, succesfully playback recorded
      video

Change-Id: I1c882872bb78d1242ba273756ef0dc27487f58fc
Signed-off-by: Sandeep Patil <sspatil@google.com>

file_context files need to be explicitly labeled as they are now split
across system and vendor and won't have the generic world readable
'system_file' label.

Bug: 36002414
Test: no new 'file_context' denials at boot complete on sailfish
Test: successfully booted into recovery without denials and sideloaded
OTA update.
Test: ./cts-tradefed run singleCommand cts --skip-device-info \
       --skip-preconditions --skip-connectivity-check --abi \
       arm64-v8a --module CtsSecurityHostTestCases -t \
       android.security.cts.SELinuxHostTest#testAospFileContexts

Change-Id: I603157e9fa7d1de3679d41e343de397631666273
Signed-off-by: Sandeep Patil <sspatil@google.com>

Test: `adb shell am hang --allow-restart` -> Watchdog dumps
  hal traces (eventually)
Bug: 36414311

Change-Id: I57e6875998b1f06a7deec1b8774facb75148d2c1

This change associates all domains which are clients of Allocator HAL
with hal_allocator_client and the, required for all HAL client
domains, halclientdomain.

This enables this commit to remove the now unnecessary hwallocator_use
macro because its binder_call(..., hal_allocator_server) is covered by
binder_call(hal_allocator_client, hal_allocator_server) added in this
commit.

Unfortunately apps, except isolated app, are clients of Allocator HAL
as well. This makes it hard to use the hal_client_domain(...,
hal_allocator) macro because it translates into "typeattribute" which
currently does not support being provided with a set of types, such as
{ appdomain -isolated_app }. As a workaround, hopefully until
typeattribute is improved, this commit expresses the necessary
association operation in CIL. private/technical_debt.cil introduced by
this commit is appended into the platform policy CIL file, thus
ensuring that the hack has effect on the final monolithic policy.

P. S. This change also removes Allocator HAL access from isolated_app.
Isolated app shouldn't have access to this HAL anyway.

Test: Google Play Music plays back radios
Test: Google Camera records video with sound and that video is then
      successfully played back with sound
Test: YouTube app plays back clips with sound
Test: YouTube in Chrome plays back clips with sound
Bug: 34170079
Change-Id: Id00bba6fde83e7cf04fb58bc1c353c2f66333f92

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

The vrmanager system service connects to vr_window_manager to
provide access to controller data for 2d embedding. This is
intended to be removed when the relevant parts of vr_window_manager
are moved into VrCore (b/36506799).

Bug: 35619424
Test: manual on device
Change-Id: I9c645882bf1a14a85bbc4c2312164381b23aaa54

ASAN builds may require additional permissions to launch processes
with ASAN wrappers. In this case, system_server needs permission to
execute /system/bin/sh.

Create with_asan() macro which can be used exclusively on debug
builds. Note this means that ASAN builds with these additional
permission will not pass the security portion of CTS - like any
other debug build.

Addresses:
avc: denied { execute } for name="sh" dev="dm-0" ino=571
scontext=u:r:system_server:s0 tcontext=u:object_r:shell_exec:s0
tclass=file

Test: lunch aosp_marlin-userdebug;
      cd system/sepolicy; mm SANITIZE_TARGET=address;
      Verify permissions granted using with_asan() are granted.
Test: lunch aosp_marlin-userdebug;
      cd system/sepolicy; mm;
      Verify permissions granted using with_asan() are not granted.
Test: lunch aosp_marlin-user;
      cd system/sepolicy; mm SANITIZE_TARGET=address;
      Verify permissions granted using with_asan() are not granted.
Bug: 36138508
Change-Id: I6e39ada4bacd71687a593023f16b45bc16cd7ef8

Now that the android wifi framework has fully switched over to HIDL,
remove the sepolicy permissions for accessing wpa_supplicant using
socket control interface.

While there, also removed the redundant |hwbinder_use|.

Bug: 35707797
Test: Device boots up and able to connect to wifi networks.
Test: Wifi integration tests passed.
Change-Id: I55e24b852558d1a905b189116879179d62bdc76c

This switches Boot Control HAL policy to the design which enables us
to conditionally remove unnecessary rules from domains which are
clients of Boot Control HAL.

Domains which are clients of Boot Control HAL, such as update_server,
are granted rules targeting hal_bootctl only when the Boot Control HAL
runs in passthrough mode (i.e., inside the client's process). When the
HAL runs in binderized mode (i.e., in another process/domain, with
clients talking to the HAL over HwBinder IPC), rules targeting
hal_bootctl are not granted to client domains.

Domains which offer a binderized implementation of Boot Control HAL,
such as hal_bootctl_default domain, are always granted rules targeting
hal_bootctl.

P. S. This commit removes direct access to Boot Control HAL from
system_server because system_server is not a client of this HAL. This
commit also removes bootctrl_block_device type which is no longer
used. Finally, boot_control_hal attribute is removed because it is now
covered by the hal_bootctl attribute.

Test: Device boots up, no new denials
Test: Reboot into recovery, sideload OTA update succeeds
Test: Apply OTA update via update_engine:
      1. make dist
      2. Ensure device has network connectivity
      3. ota_call.py -s <serial here> out/dist/sailfish-ota-*.zip
Bug: 34170079
Change-Id: I9c410c092069e431a3852b66c04c4d2a9f1a25cf

This switches most remaining HALs to the _client/_server approach.
To unblock efforts blocked on majority of HALs having to use this
model, this change does not remove unnecessary rules from clients of
these HALs. That work will be performed in follow-up commits. This
commit only adds allow rules and thus does not break existing
functionality.

The HALs not yet on the _client/_server model after this commit are:
* Allocator HAL, because it's non-trivial to declare all apps except
  isolated apps as clients of this HAL, which they are.
* Boot HAL, because it's still on the non-attributized model and I'm
  waiting for update_engine folks to answer a couple of questions
  which will let me refactor the policy of this HAL.

Test: mmm system/sepolicy
Test: Device boots, no new denials
Test: Device boots in recovery mode, no new denials
Bug: 34170079
Change-Id: I03e6bcec2fa02f14bdf17d11f7367b62c68a14b9