rw access to sysfs_power file is not enough; in some cases search access
is also needed

Bug: 67895406
Test: system_server can access memory power statistics
Change-Id: I471e8e60626e6eed35e74e25a0f4be470885a459

Bug: 25861755
Test: Boot device, observe logs
Change-Id: I6c13430d42e9794003eb48e6ca219b874112b900
Merged-In: I6c13430d42e9794003eb48e6ca219b874112b900
(cherry picked from commit 47f3ed09)

This change allows wpantund to call any binder callbacks that have
been registered with it. Generally, only privileged apps are allowed
to register callbacks with wpantund, so we are limiting the scope for
callbacks to only privileged apps. We also add shell to allow the
command-line utility `lowpanctl` to work properly from `adb shell`.

Bug: b/67393078
Test: manual
Change-Id: I64c52cc5e202725a81230dc67e1cd7c911cf8e1c
(cherry picked from commit 17319cb3)

Bug: b/64399219
Test: Manual
Change-Id: I4f6c7e4e3339ae95e43299bf364edff40d07c796
(cherry picked from commit c8bd93d7)

As a consequence, hal_audio_default (and any domain with hal_audio attribute)
loses access to proc label.

Bug: 65643247
Test: sailfish boots, can play sound through speakers and headset
(3.5mm, usb, and bluetooth) without denials from hal_audio to proc.
Test: VtsHalAudioEffectV2_0Target
Test: VtsHalAudioV2_0Target

Change-Id: I3eead5a26ef36b8840d31c5e078f006b0c2266a3

Allow PowerUI / platform_app to use thermalservice for receiving
notifications of thermal events.

Bug: 66698613
Test: PowerNotificationWarningsTest, PowerUITest,
      manual: marlin and <redacted> with artificially low temperature
      threshold and logcat debugging messages
Change-Id: I5428bd5f99424f83ef72d981afaf769bdcd03629
Merged-In: I5428bd5f99424f83ef72d981afaf769bdcd03629

Dontaudit denials for services that system_app may not use due
to neverallow assertions.

Bug: 67779088
Test: build
Change-Id: I822a7909c86bee5c2fdeec6e13af1a9791883f72

This denial should not be allowed. Add bug information to the denial
to give context.

Bug: 63801215
Test: build
Change-Id: I3dc5ce6a5aa1c6bf74c6fd13cab082c7f263c4e8

Addresses:
avc: denied { search } for comm="sh" name="bms" dev="sysfs" ino=47908
scontext=u:r:shell:s0 tcontext=u:object_r:sysfs_batteryinfo:s0
tclass=dir

Test: build
Change-Id: I8a0197417c47feefba084e9c75933d28c5f6e5f1

New types:
sysfs_android_usb
sysfs_ipv4
sysfs_power
sysfs_rtc
sysfs_switch
sysfs_wakeup_reasons

Labeled:
/sys/class/android_usb, /sys/devices/virtual/android_usb ->sysfs_android_usb
/sys/class/rtc -> sysfs_rtc
/sys/class/switch, /sys/devices/virtual/switch -> sysfs_switch
/sys/power/state, /sys/power/wakeup_count -> sysfs_power
/sys/kernel/ipv4 -> sysfs_ipv4
/sys/kernel/wakeup_reasons -> sysfs_wakeup_reasons

Removed access to sysfs and sysfs_type from system_server and added
appropriate access to new types.

Bug: 65643247
Test: sailfish boots without violation from system_server or to new labels.
Change-Id: I27250fd537d76c8226defa138d84fe2a4ce2d5d5

Test: build aosp_sailfish
Change-Id: Iaefe1df66885d3e78feb600c3d9845bd9fe671a2

bug: 67029332
testing:
- build
- boot
- CTS MediaCasTest on Pixel2

Change-Id: I019e0156c67c84875310d630f8a8bec7aaa483a6

Prior to this CL, /sys/devices/virtual/block/dm-X was using the generic
sysfs label. This CL creates sysfs_dm label and grants the following
accesses:
 - update_verifier to read sysfs_dm dir and file at
   /sys/devices/virtual/block/dm-X.
 - vold to write sysfs_dm.

Bug: 63440407
Test: update_verifier successfully triggers blocks verification and
      marks a sucessful boot;
Test: No sysfs_dm related denials on sailfish.
Change-Id: I6349412707800f1bd3a2fb94d4fe505558400c95

isolated_apps are intended to be strictly limited in the /sys files
which can be read. Add a neverallow assertion to guarantee this on all
Android compatible devices.

Test: policy compiles.
Change-Id: I2980291dcf4e74bb12c81199d61c5eb8a182036c

Comments indicate that these permissions are used to access already
open FDs. However, getattr of a directory is clearly not necessary
for that, search of system_data_file is already granted to domain
and following symlinks is clearly not needed for reading an already
open FD.

Bug: 34980020
Test: boot marlin. Test drm with google play movies, no related
    denials
Test: cts-tradefed run cts -m CtsMediaTestCases -t \
    android.media.cts.MediaCasTest
    5/6 tests fail with no related selinux denials. The same 5/6
    also fail in selinux permissive mode.
Change-Id: Ib4b9a1e18bdc479d656b2d64917bbc0358515525

Bug: 64687998
Test: Builds.
Change-Id: I7a5b65d34382b8b76e55c523811a0f17dd9c1051

Bug: 65643247
Test: sailfish boots, can take pictures, use browser without denials
form kernel domain.
Change-Id: I4fc0555f0b65fc5537e0b2765142b384ed0560c8

Bullhead and dragon are broken. Revert until I can fix
those builds.

Dragon:

libsepol.report_failure: neverallow on line 113 of system/sepolicy/private/isolated_app.te (or line 26264 of policy.conf) violated by allow isolated_app sysfs_socinfo:file { ioctl read lock open }; 

Bullhead:

libsepol.report_failure: neverallow on line 113 of system/sepolicy/private/isolated_app.te (or line 26283 of policy.conf) violated by allow isolated_app sysfs_power_management:file { ioctl read lock open }; 
libsepol.report_failure: neverallow on line 113 of system/sepolicy/private/isolated_app.te (or line 26283 of policy.conf) violated by allow isolated_app sysfs_socinfo:file { ioctl read lock open }; 
libsepol.report_failure: neverallow on line 113 of system/sepolicy/private/isolated_app.te (or line 26283 of policy.conf) violated by allow isolated_app sysfs_thermal:file { ioctl read lock open }; 
libsepol.check_assertions: 3 neverallow failures occurred 


This reverts commit 579366a0.

Change-Id: I1ea4824e226c06628769898299f2e322060d0d06
Test: policy compiles.

Mediaextractor should only be operating on data passed directly to it.
It shouldn't be attempting to open /data files on it's own.

Add a neverallow statement (compile time assertion + CTS test) to ensure
this is the case.

Bug: 67454004
Test: policy compiles. No runtime impact.
Change-Id: Ie94d4cb9aece7e72fbd13321f339dcf9d44d5d77

Allows partners to add a new attribute definition to their public
policy without causing a compatibility failure with the AOSP system
image.

Bug: 67092827
Bug: 37915794
Test: build and boot aosp_sailfish with new type declared in public
    policy

Change-Id: I015c26fa7c399423e8a6e7079b5689007d031479

These denials are expected and the code has fallbacks to handle this
case.

Test: policy compiles.
Bug: 67454004
Change-Id: I787625494d0a7c9945318428b6fd3f668a8a2564

Renamed this type:
proc_asound_cards -> proc_asound

Labeled /proc/asound/devices as proc_asound.

We now use proc_asound type to label files under /proc/asound which we
want to expose to system components.

Bug: 66988327
Test: Pixel 2 boots, can play sound with or without headphones, and
selinux denials to proc_asound are not seen.

Change-Id: I453d9bfdd70eb80931ec9e80f17c8fd0629db3d0

isolated_apps are intended to be strictly limited in the /sys files
which can be read. Add a neverallow assertion to guarantee this on all
Android compatible devices.

Test: policy compiles.
Change-Id: I47aceefa3f43a7ea9e526f6f0ef377d0b4efbe3a