To write bytes to appfuse file from priv_app, we need to specify
mlstrustedobject.
The CL fixes the following denial.

type=1400 audit(0.0:77): avc: denied { write } for name="10" dev="fuse" ino=10 scontext=u:r:priv_app:s0:c512,c768 tcontext=u:object_r:app_fuse_file:s0 tclass=file permissive=0

BUG=23093747

Change-Id: I9901033bb3349d5def0bd7128db45a1169856dc1

Bug: 27176738
Change-Id: I70e4b7b54044dd541076eddd39a8e9f5d881badf

03-25 09:31:22.996     1     1 W init    : type=1400 audit(0.0:8): \
  avc: denied { getattr } for path="/data/misc/logd/logcat.052" \
  dev="dm-2" ino=124778 scontext=u:r:init:s0 \
  tcontext=u:object_r:misc_logd_file:s0 tclass=file permissive=0
. . .

Introduced a new macro not_userdebug_nor_eng()

Change-Id: I9c3a952c265cac096342493598fff7d41604ca45

Add a neverallow rule (compile time assertion + CTS test) that
isolated_apps and untrusted_apps can't do anything else but append
to /data/anr/traces.txt. In particular, assert that they can't
read from the file, or overwrite other data which may already be
in the file.

Bug: 18340553
Bug: 27853304
Change-Id: I249fe2a46401b660efaa3f1102924a448ed750d5

/dev/uio uio_device is already declared. Accessing uio through /sys
is also common.

Bug: 26990688
Change-Id: I3db941161dae31d3b87f265708abbcd9171a2c1f

sysfs_thermal nodes are common enough to warrant an entry in global
policy and the new HardwarePropertiesManagerService exists explicitly to
expose some of this information.

Address the following denials:
avc: denied { search } for name="thermal" dev="sysfs" ino=17509 scontext=u:r:system_server:s0 tcontext=u:object_r:sysfs_thermal:s0 tclass=dir permissive=1
avc: denied { read } for name="temp" dev="sysfs" ino=17848 scontext=u:r:system_server:s0 tcontext=u:object_r:sysfs_thermal:s0 tclass=file permissive=1
avc: denied { open } for path="/sys/devices/virtual/thermal/thermal_zone8/temp" dev="sysfs" ino=17848 scontext=u:r:system_server:s0 tcontext=u:object_r:sysfs_thermal:s0 tclass=file permissive=1
avc: denied { getattr } for path="/sys/devices/virtual/thermal/thermal_zone8/temp" dev="sysfs" ino=17848 scontext=u:r:system_server:s0 tcontext=u:object_r:sysfs_thermal:s0 tclass=file permissive=1

(cherry-pick of internal commit: 98eff7c3)

Bug: 27809332
Change-Id: I6f812a7e281e348aa24c76b119e71ed95e1a1d9f

One time executables. recovery_refresh can be used at any time to
ensure recovery logs in pmsg are re-placed at the end of the FIFO.
recovery_persist takes the recovery logs in pmsg and drops them
into /data/misc/recovery/ directory.

Bug: 27176738
Change-Id: Ife3cf323930fb7a6a5d1704667961f9d42bfc5ac

See https://groups.google.com/d/msg/android-ndk/BbEOA9pnR-I/HgLkGy5qAgAJ

Addresses the following denial:

  avc: denied { lock } for path="/data/data/com.mypackage/files/somefilename" dev="mmcblk0p28" ino=114736 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:app_data_file:s0:c512,c768 tclass=dir permissive=0

While I'm here, also add lock to w_file_perms.

(cherrypicked from commit 4ee494cc)

Change-Id: I2568a228099c4e112e4a8b80da3bfcf2e35eb0ea

Block other operations which involve non-file descriptor
operations.

Change-Id: I5d813781c201a732aa1ee6ff6fd3d82f2af32ec7

BUG: 27419521
Change-Id: I63108468d75be3ef7f9761107a3df8997f207d07

This policy takes effect only when building with
SANITIZE_TARGET=address and allows the Zygote to load libraries from
/data. That's where ASan-instrumented copies of system libraries are
located. 32-bit library directories have been added a while back;
this CL extends the same policy to 64-bit directories.

Bug: 25751174

Change-Id: Ieb4701b78db9649ec8563f2962a69db537ae61b3

Applications do not explicitly request handles to the batteryproperties
service, but the BatteryManager obtains a reference to it and uses it
for its underlying property queries.  Mark it as an app_api_service so
that all applications may use this API.  Also remove the batterypropreg
service label, as this does not appear to be used and may have been a
duplication of batteryproperties.  As a result, remove the
healthd_service type and replace it with a more specific
batteryproperties_service type.

Bug: 27442760
Change-Id: I5c0f9d7992ff2ec64adaeef22356e88fd0e8169c

HwRngTest needs access to the hwrandom sysfs files, but untrused_app
does not have access to sysfs.  Give these files their own label and
allow the needed read access.

(cherry-pick from internal commit: 85c0f8af)

Bug: 27263241
Change-Id: If572ad0931a534d76e148b688b76687460e99af9

Remove references to /data/security and the corresponding
type securitly_file.

Bug: 26544104
Change-Id: Iac00c293daa6b781a24c2bd4c12168dfb1cceac6

Many permissions were removed from untrusted_app by the removal of
domain_deprecated, including procfs access. procfs file access was restored,
however, but not completely.  Add the ability to getattr to all domains,
so that other domains which lost domain_deprecated may benefit, as they
will likely need it.

Bug: 27249037
Change-Id: Id3f5e6121548b29d739d5e0fa6ccdbc9f0fc29be

Bug: http://b/27367422
Change-Id: I936c16281e06214b35f8d245da8f619dc92ff15f

Bug: 26813932
Change-Id: I155087d28d9284d8c96554cc6739bb676272a00f

am: edd86a63

* commit 'edd86a63':
  New postinstall domain and rules to run post-install program.

am: 01d95c23

* commit '01d95c23':
  Update netlink socket classes.

Define new netlink socket security classes introduced by upstream kernel commit
6c6d2e9bde1c1c87a7ead806f8f5e2181d41a652 ("selinux: update netlink socket
classes").  This was merged in Linux 4.2 and is therefore only required
for Android kernels based on 4.2 or newer (e.g. the android-4.4 branch
of the kernel/common tree).

Add the new socket classes to socket_class_set.
Add an initial set of allow rules although further refinement
will likely be necessary.  Any allow rule previously written
on :netlink_socket may need to be rewritten or duplicated for
one or more of the more specific classes.  For now, we retain
the existing :netlink_socket rules for compatibility on older kernels.

Change-Id: I5040b30edd2d374538490a080feda96dd4bae5bf
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

When using the A/B updater, a device specific hook is sometimes needed
to run after the new partitions are updated but before rebooting into
the new image. This hook is referred to throughout the code as the
"postinstall" step.

This patch creates a new execution domain "postinstall" which
update_engine will use to run said hook. Since the hook needs to run
from the new image (namelly, slot "B"), update_engine needs to
temporarly mount this B partition into /postinstall and then run a
program from there.

Since the new program in B runs from the old execution context in A, we
can't rely on the labels set in the xattr in the new filesystem to
enforce the policies baked into the old running image. Instead, when
temporarily mounting the new filesystem in update_engine, we override
all the new file attributes with the new postinstall_file type by
passing "context=u:object_r:postinstall_file:s0" to the mount syscall.
This allows us to set new rules specific to the postinstall environment
that are consistent with the rules in the old system.

Bug: 27177071
TEST=Deployed a payload with a trivial postinstall script to edison-eng.

Change-Id: Ib06fab92afb45edaec3c9c9872304dc9386151b4

am: 6ef10bd4

* commit '6ef10bd4':
  suppress unnecessary makefile output

checkpolicy spits out a bunch of unnecessary lines during normal
operation, which bloat the logs and hide other more important
warnings. Suppress the normal output.

SELinux compile time errors are printed to stderr, and are
uneffected by this change.

Change-Id: I07f2cbe8afcd14abf1c025355a169b5214ed5c6e

am: 9a1347ee

* commit '9a1347ee':
  Allow bluetooth access to the tun device.

Bluetooth uses the tun device for tethering. Allow access.

  STEPS TO REPRODUCE:
  0. Have two devices to test on, say Device A and Device B
  1. On Device A, Go to settings ->Bluetooth .
  2. Turn on the Bluetooth .
  3. Pair it with device B
  4. Tap on the paired device

  OBSERVED RESULTS:
  -Bluetooth share crash is observed with "Bluetooth share has stopped"
  error message
  -Unable to use Bluetooth tethering due to this issue

  EXPECTED RESULTS:
  No crash and Bluetooth devices should be able to connect for tethering

Addresses the following denial:

com.android.bluetooth: type=1400 audit(0.0:131): avc: denied { open }
for comm=425420536572766963652043616C6C path="/dev/tun" dev="tmpfs"
ino=12340 scontext=u:r:bluetooth:s0 tcontext=u:object_r:tun_device:s0
tclass=chr_file permissive=0

Bug: 27372573
Change-Id: I07724d8d68ffcdda691f1179787a4f40a0ab1c73

am: bca98efa

* commit 'bca98efa':
  Don't allow permissive SELinux domains on user builds.

It's a CTS requirement that all SELinux domains be in
enforcing mode. Add the same assertion to the build system
when targeting user builds.

In particular, this avoids a situation where device integrity
checking is enabled on user builds, but permissive denials
are being generated, causing the device to unexpectedly reboot
into safe mode.

A developer wanting to put an SELinux domain into permissive
mode for userdebug/eng purposes can write the following
in their policy:

  userdebug_or_eng(`
    permissive foo;
  ')

Bug: 26902605
Bug: 27313768
Change-Id: Ic0971d9e96a28f2a98f9d56a547661d24fb81a21

am: f25ea5f9

* commit 'f25ea5f9':
  Label /proc/meminfo.

Address the following denial:
m.chrome.canary: type=1400 audit(0.0:15): avc: granted { read open } for path="/proc/meminfo" dev="proc" ino=4026544360 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:proc:s0 tclass=file

(cherry-pick of internal commit: 971aeeda)

Bug: 22032619
Chromium Bug: 586021

Change-Id: I2dcb2d4800bbc92ea47c37d4fd7a10f827a0114c

am: 7905d681

* commit '7905d681':
  Allow access to the daydream ("dreams") service.

Bug: 26804329
Change-Id: I7b789c6fe8411e3a4a718da86d442a0f48c5c310

am: 65b5fde9

* commit '65b5fde9':
  Add recovery service.

RecoverySystemService is separated from PowerManagerService as a
dedicated system service to handle recovery related requests (such as
invoking uncrypt to uncrypt an OTA package on /data or to set up /
clear the bootloader control block (i.e. /misc) and etc).

The matching CL in frameworks/base is in:
  Change-Id: Ic606fcf5b31c54ce54f0ab12c1768fef0fa64560.

Bug: 26830925
Change-Id: Iee0583c458f784bfa422d0f7af5d1f2681d9609e

am: 6b843bcf

* commit '6b843bcf':
  Enable recovery to read batteryinfo.

Bug: 26879394

Change-Id: I09ac9027ca343e00488dedab8df1687fd32bb255