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This allows the shell user to control whether unprivileged access to
perf events is allowed.

To enable unprivileged access to perf:

    adb shell setprop security.perf_harden 0

To disable it again:

    adb shell setprop security.perf_harden 1

This allows Android to disable this kernel attack surface by default,
while still allowing profiling tools to work automatically. It can also
be manually toggled, but most developers won't ever need to do that if
tools end up incorporating this.

(Cherry picked from commit 38ac77e4c2b3c3212446de2f5ccc42a4311e65fc)

Bug: 29054680

Change-Id: Idcf6a2f6cbb35b405587deced7da1f6749b16a5f
(cherry picked from commit 0b7b9c258d9d85c3053b0b64e59775d952b99202)

SELinux defines various classes for various socket types, including
tcp_socket, udp_socket, rawip_socket, netlink_socket, etc. Socket
classes not known to the SELinux kernel code get lumped into the generic
"socket" class. In particular, this includes the AF_MSM_IPC socket
class.

Bluetooth using apps were granted access to this generic socket class at
one point in 2012. In 16011320,
a TODO was added indicating that this access was likely unnecessary. In
cb835a28, an auditallow was added to
test to see if this rule was actually used, and in master branch
d0113ae0, this rule was completely
deleted.

Revoke access to the generic socket class for isolated_app,
untrusted_app, and shell for older Android releases. This is
conceptually a backport of d0113ae0, but
affecting fewer domains to avoid potential breakage.

Add a neverallow rule asserting that this rule isn't present for the
untrusted domains. Contrary to our usual conventions, the neverallow
rule is placed in bluetooth.te, to avoid merge conflicts and simplify
patching.

Bug: 28612709
Bug: 25768265
Change-Id: Ibfbb67777e448784bb334163038436f3c4dc1b51

Restrict unix_dgram_socket and unix_stream_socket to a whitelist
for all domains. Remove ioctl permission for netlink_selinux_socket and
netlink_route_socket for netdomain.

Bug: 28171804
Bug: 27424603
Change-Id: I650639115b8179964ae690a39e4766ead0032d2e

Remove untrusted/isolated app access to device private commands.

Only allow shell user to access unprivileged socket ioctl commands.

Bug: 26324307
Bug: 26267358
Change-Id: Iddf1171bc05c7600e0292f925d18d748f13a98f2

binderservicedomain services often expose their methods to untrusted
clients and rely on permission checks for access control.  Allow these
services to query the permission service for access decisions.

Bug: 25282923
Change-Id: I39bbef479de3a0df63e0cbca956f3546e13bbb9b

This allows apps to find the healthd service which is used to query
battery properties.

Bug: 24759218
Change-Id: I72ce5a28b2ffd57aa424faeb2d039b6c92f9597d
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>

* commit '63af426a':
  bluetooth.te: Relax bluetooth neverallow rule.

am: 33a779fe

* commit '33a779fe':
  bluetooth.te: Relax bluetooth neverallow rule.

Bug: 24866874
Change-Id: Ic13ad4d3292fe8284e5771a28abaebb0ec9590f0

This allows NetworkDiagnostics to send ping packets from specific
source addresses in order to detect reachability problems on the
reverse path.

This addresses the following denial:

[  209.744636] type=1400 audit(1441805730.510:14): avc: denied { node_bind } for pid=8347 comm="Thread-202" saddr=2400:xxxx:xxxx:xxxx:40b1:7e:a1d7:b3ae scontext=u:r:system_server:s0 tcontext=u:object_r:node:s0 tclass=rawip_socket permissive=0

Bug: 23661687

(cherry picked from commit c37121436be95ae2ed75cb83605940455446ef4e)

Change-Id: Ia93c14bc7fec17e2622e1b48bfbf591029d84be2

CTS relies on the ability to see all services on the system to make sure
the dump permission is properly enforced on all services.  Allow this.

Bug: 23476772
Change-Id: I144b825c3a637962aaca59565c9f567953a866e8

am 4496a389: am 78b54b5d: am bf323ff8: am 21827ff0: am f82f5e01: Accept command-line input for neverallow-check.

* commit '4496a389':

am f84c740b: am ed21ab14: am c9b882dc: am a045ca42: am 87f3802a: appdomain: relax netlink_socket neverallow rule

* commit 'f84c740b':

am 5e911116: am f35d737d: am a669507e: am b5dd69a1: am c423b1aa: Add neverallow checking to sepolicy-analyze.

* commit '5e911116':

am 7dea3ae2: am 22db098e: am 5c190886: am 57dec60c: am 6f201ddc: App: add permissions to read symlinks from dalvik cache.

* commit '7dea3ae2':

am c80e805c: am f08d0446: am 582620ae: am c2eb12b2: am 9f0af9ec: Merge "zygote/dex2oat: Grant additional symlink permissions" into lmp-sprout-dev

* commit 'c80e805c':

am eced16c0: am fd352211: am f83e617f: am 4008b6c6: am b7934922: allow run-as to access /data/local/tmp

* commit 'eced16c0':

am 8ef2fed6: am d5d55306: am 330dd6e4: am 0edbecf2: am 7cd346a7: am 0055ea90: Allow recovery to create device nodes and modify rootfs

* commit '8ef2fed6':

* commit '58aa4481':

* commit '78b54b5d':

* commit 'ed21ab14':

* commit 'f35d737d':

am 22db098e: am 5c190886: am 57dec60c: am 6f201ddc: App: add permissions to read symlinks from dalvik cache.

* commit '22db098e':

am f08d0446: am 582620ae: am c2eb12b2: am 9f0af9ec: Merge "zygote/dex2oat: Grant additional symlink permissions" into lmp-sprout-dev

* commit 'f08d0446':

* commit 'fd352211':

am d5d55306: am 330dd6e4: am 0edbecf2: am 7cd346a7: am 0055ea90: Allow recovery to create device nodes and modify rootfs

* commit 'd5d55306':

* commit 'f992c4fa':

* commit 'bf323ff8':

* commit 'c9b882dc':

* commit 'a669507e':

* commit '5c190886':

am 582620ae: am c2eb12b2: am 9f0af9ec: Merge "zygote/dex2oat: Grant additional symlink permissions" into lmp-sprout-dev

* commit '582620ae':

* commit 'f83e617f':

am 330dd6e4: am 0edbecf2: am 7cd346a7: am 0055ea90: Allow recovery to create device nodes and modify rootfs

* commit '330dd6e4':

* commit 'aa03e496':

* commit '21827ff0':

* commit 'a045ca42':

* commit 'b5dd69a1':