am: f54b3622

Change-Id: I0a304ed2b5591e58b0e39b37cb9fb8f392fe663b

This new input selector allows phasing in new security policies by
giving app developers an opportunity to make any needed compatibility
changes before updating each app's targetSdkVersion.

When all else is equal, matching entries with higher
minTargetSdkVersion= values are preferred over entries with lower
minTargetSdkVersion= values.

Test: Marlin builds and boots. Apps targeting targetSdkVersion<=25
run in untrusted_app_25 domain. Apps targeting the current development
build >=26 run in the untrusted_app domain with fewer permissions. No
new denials observed during testing.
Bug: 34115651
Change-Id: I14bf4f51dbe26cb9bd3f62ad0b281085441d9806

am: 3b06b971

Change-Id: I3ea2bbb2ed2e1b2e9293b3766904b681a70e9896

am: ee2faadc

Change-Id: Ic12fe80e16972a172092291058c12dd53c95ee14

am: d734f151

Change-Id: I600ecaf5fac9401db036a733a7afa186f6de7eb2

am: ff5784f3

Change-Id: Ieb6e5cc4711add33fbd7b276bbbd362f249fb51e

am: 5b4f15e1

Change-Id: Ic7c0de32ac3970c000062bc35bb0c50254510b3a

Update shell.te to reflect the fact that hwbinder_user permission is for
lshal, not dumpsys.

Bug: 33382892
Test: pass
Change-Id: I1d298261cea82177436a662afbaa767f00117b16

Bug: 34135607
Test: hals work

Merged-In: I6a1f87438bb5b540fce900e9ec5df07d3f4f6bd4
Change-Id: I6a1f87438bb5b540fce900e9ec5df07d3f4f6bd4

am: daeb5e01

Change-Id: If2e1e939980f6c3c4c9aaf765b4418f11aef4084

am: 4cae28d4

Change-Id: Ie22e0c2a1c84188666a38dba21129e7547d83fbc

Bug: 35210697
Test: manual
Change-Id: I0e1e8923851f668d5fe6c210f411a8e4ff0470c7

Don't audit directory writes to sysfs since they cannot succees
and therefore cannot be a security issue

Bug: 35303861
Test: Make sure denial is no longer shown
Change-Id: I1f31d35aa01e28e3eb7371b1a75fc4090ea40464

On boot, Android runs restorecon on a number of virtual directories,
such as /sys and /sys/kernel/debug, to ensure that the SELinux labels
are correct. To avoid causing excessive boot time delays, the restorecon
code aggressively prunes directories, to avoid recursing down directory
trees which will never have a matching SELinux label.

See:
* https://android-review.googlesource.com/93401
* https://android-review.googlesource.com/109103

The key to this optimization is avoiding unnecessarily broad regular
expressions in file_contexts. If an overly broad regex exists, the tree
pruning code is ineffective, and the restorecon ends up visiting lots of
unnecessary directories.

The directory /sys/kernel/debug/tracing contains approximately 4500
files normally, and on debuggable builds, this number can jump to over
9000 files when the processing from wifi-events.rc occurs. For
comparison, the entire /sys/kernel/debug tree (excluding
/sys/kernel/debug/tracing) only contains approximately 8000 files. The
regular expression "/sys/kernel(/debug)?/tracing/(.*)?" ends up matching
a significant number of files, which impacts boot performance.

Instead of using an overly broad regex, refine the regex so only the
files needed have an entry in file_contexts. This list of files is
essentially a duplicate of the entries in
frameworks/native/cmds/atrace/atrace.rc .

This change reduces the restorecon_recursive call for /sys/kernel/debug
from approximately 260ms to 40ms, a boot time reduction of approximately
220ms.

Bug: 35248779
Test: device boots, no SELinux denials, faster boot.
Change-Id: I70f8af102762ec0180546b05fcf014c097135f3e

am: 6ebcfe47

Change-Id: I6999a1aaf79a559e0477166523ee71cfbfeb3a1b

Use the default filesystem label from genfs_contexts for the directory
/sys/kernel/debug/tracing and /sys/kernel/tracing, instead of explicitly
attempting to relabel it.

There are three cases we need to consider:

1) Old-style tracing functionality is on debugfs
2) tracing functionality is on tracefs, but mounted under debugfs
3) tracefs is mounted at /sys/kernel/tracing

For #1, the label on /sys/kernel/debug/tracing will be debugfs, and all
processes are allowed debugfs:dir search, so having the label be debugfs
instead of debugfs_tracing will not result in any permission change.

For #2, the label on /sys/kernel/debug/tracing will be debugfs_tracing,
which is the same as it is today. The empty directory
/sys/kernel/tracing wlll retain the sysfs label, avoiding the denial
below.

For #3, /sys/kernel/debug/tracing won't exist, and /sys/kernel/tracing
will have the debugfs_tracing label, where processes are allowed search
access.

Addresses the following denial:

avc:  denied  { associate } for  pid=1 comm="init" name="tracing"
dev="sysfs" ino=95 scontext=u:object_r:debugfs_tracing:s0
tcontext=u:object_r:sysfs:s0 tclass=filesystem permissive=0

Bug: 31856701
Bug: 35197529
Test: no denials on boot
Change-Id: I7233ea92c6987b8edfce9c2f1d77eb25c7df820f

Bug: 31399200
Test: Compiles
Change-Id: Ifb347a985df5deb85426a54c435c4a9c0248cb57

am: 3651bae6

Change-Id: Idbda0045c91888051350d77765d17f85d12d4046

There is only a single systemapi at the moment that is callable, and it is
protected by a signature/preinstalled permission.

(cherry picked from commit I778864afc9d02f8b2bfcf6b92a9f975ee87c4724)

Bug: 35059826,33297721
Test: manually on a marlin
Change-Id: I3789ce8238f5a52ead8f466dfa3045fbcef1958e

am: e6ff034a

Change-Id: I0cadd202cfa6f898df7ef4f8c128a91b4ff31675

am: d4f93469

Change-Id: Idc8dc4fb33c8c10f2398c01af22d29635e16e0d9

am: f5f0c596

Change-Id: Iec73c9ac8ad891b7054f2e15b6b5d7afc3950064

am: b2513f98

Change-Id: I67af386f16cb643f3bb13c993c76728bc42d8516

* changes:
  init.te: remove domain_deprecated
  Remove logspam

Addresses
avc:  denied  { find } for service=vrmanager pid=472 uid=1000
scontext=u:r:surfaceflinger:s0 tcontext=u:object_r:vr_manager_service:s0
tclass=service_manager

Test: Marlin builds and boots. Denial no longer observed.
Bug: 35258608
Bug: 35197529
Change-Id: I480dff3fdaf01f71e29e96f08350f705c6a23bba

am: ecd0a14e

Change-Id: Ifdfbbf4d6011f24156a848c16ddcafd808eef372

avc: denied { read } for name="modalias" dev="sysfs" ino=17624 scontext=u:r:hal_fingerprint_default:s0 tcontext=u:object_r:sysfs:s0 tclass=file

Test: Marlin builds and boots without this denial.
Bug: 35197529
Change-Id: I3b64db571ac10c843f3765ed557ceac07bc6580e

Make the policy smaller and less noisy on user builds by suppressing
auditallow rules.

Bug: 28760354
Test: policy compiles and device boots. No obvious problems.
Change-Id: Iddf6f12f8ce8838e84b09b2f9f3f0c8b700543f5

auditallows have been in place for a while, and no obvious denials.
Remove domain_deprecated from init.te

While I'm here, clean up the formatting of the lines in
domain_deprecated.te.

Bug: 28760354
Test: policy compiles and device boots. No obvious problems.
Change-Id: Ia12e77c3e25990957abf15744e083eed9ffbb056