This reverts commit 942500b9.

Bug: 75287236
Test: boot a device
Merged-In: If81a2d2a46979ffbd536bb95528c3b4ebe3483df
Change-Id: If81a2d2a46979ffbd536bb95528c3b4ebe3483df
(cherry picked from commit a6d9d6b6)

The netutils_wrapper is a process used by vendor code to update the
iptable rules on devices. When it update the rules for a specific chain.
The iptable module will reload the whole chain with the new rule. So
even the netutils_wrapper do not need to add any rules related to xt_bpf
module, it will still reloading the existing iptables rules about xt_bpf
module and need pass through the selinux check again when the rules are
reloading. So we have to grant it the permission to reuse the pinned
program in fs_bpf when it modifies the corresponding iptables chain so
the vendor module will not crash anymore.

Test: device boot and no more denials from netutils_wrapper
Bug: 72111305
Change-Id: I62bdfd922c8194c61b13e2855839aee3f1e349be
(cherry picked from aosp commit 2623ebcf)

See also go/perfetto-io-tracing-security.

* Grant CAP_DAC_READ_SEARCH to traced_probes.
* Allow traced_probes to list selected labels.
* Change ext4 and f2fs events to be available on user builds.

Bug: 74584014
Cherry-picked from aosp/631805
Change-Id: I891a0209be981d760a828a69e4831e238248ebad
Merged-In: I891a0209be981d760a828a69e4831e238248ebad

This allows init to write to it, which it does for atrace.

Bug: 72643420
Test: Boot two devices, observe no denials, test atrace.
Change-Id: I6810e5dcdfaff176bd944317e66d4fe612ccebed

Access to these files was removed in Oreo. Enforce that access is not
granted by partners via neverallow rule.

Also disallow most untrusted app access to net.dns.* properties.

Bug: 77225170
Test: system/sepolicy/tools/build_policies.sh
Change-Id: I85b634af509203393dd2d9311ab5d30c65f157c1
(cherry picked from commit 886aa54b)

The kernel generates file creation audits when O_CREAT is passed even
if the file already exists - which it always does in the cgroup cases.

We add neverallow rules to prevent mistakenly allowing unnecessary
create access. We also suppress these denials, which just add noise to
the log, for the more common culprits.

Bug: 72643420
Bug: 74182216

Test: Ran build_policies.sh and checked failures were unrelated.
Test: Device still boots, denials gone.
Change-Id: I034b41ca70da1e73b81fe90090e656f4a3b542dc

Test: Builds

Bug: 64121714
Bug: 31973802
Change-Id: Id37be8726a8bb297e35bca494964fdbcc48c6a73

Bug: 73354384
Test: manual
Change-Id: I4fa630624cc247275e11965471461502f451edf4

These denials occur fairly often, causing some logspam.

Bug: 77225170
Test: Boot device.
Change-Id: Icd73a992aee44007d0873743f706758f9a19a112

In permissive mode we get more spurious denials when O_CREAT is used
with an already-existing file. They're harmless so we don't need to
audit them.

Example denials:
denied { add_name } for name="trigger" scontext=u:r:init:s0 tcontext=u:object_r:sysfs_leds:s0 tclass=dir permissive=1
denied { create } for name="trigger" scontext=u:r:init:s0 tcontext=u:object_r:sysfs_leds:s0 tclass=file permissive=1

Bug: 72643420
Bug: 74182216

Test: Device boots, denials gone.
Change-Id: I54b1a0c138ff5167f1d1d12c4b0b9e9afaa5bca0

A default value of persist.radio.multisim.config can be set by SoC
vendors, and so vendor-init-settable should be allowed to it.

Bug: 73871799
Test: succeeded building and tested with taimen
Change-Id: Ie62b91e7e3d7e05425b742838417f1cab7b3fed4
Merged-In: Ie62b91e7e3d7e05425b742838417f1cab7b3fed4
(cherry picked from commit ac8c6e3d)

Give statsd rights to connect to perfprofd in userdebug.

(cherry picked from commit 488030ee)

Bug: 73175642
Test: mmma system/extras/perfprofd
Merged-In: Idea0a6b757d1b16ec2e6c8719e24900f1e5518fd
Change-Id: Idea0a6b757d1b16ec2e6c8719e24900f1e5518fd

The ConfirmationUI API has a callback interface by which confirmation
results are presented to the calling app. This requires keystore to call
into apps.

Test: Device boots and no more denials when call back is delivered to
      apps.
Bug: 63928580
Change-Id: Ie23211aeb74c39956c3c3b8b32843d35afa1315a

Use the user policy when running the compatibility tests.

Bug: 74344625
Test: Built policy for many devices.  Booted one device.
Test: Delete some compat rules, verify error on userdebug.
Change-Id: Ib2df2dfc06cdf55a839011e9a528e76160a9e436
(cherry picked from commit c1486218)

Verify that the SELabels used in property_contexts correspond to a
real type in the SEPolicy and that this type has the property_type attribute.

Additionally add a check that vendor property_context files do not
duplicate entries in plat property_contexts, and a similar check that
odm property_contexts doesn't duplicate either plat or vendor
property_contexts.

Bug: 74078792
Test: Build property_contexts on bullhead successfully
Test: See failure when using a faulty SELabel in property_contexts
Test: See failure when duplicating label in vendor and plat property_contexts
Change-Id: I4d2338dab68f1c5a8ed110aa7821f0677f61bafb
(cherry picked from commit a15df75d)

Suppress WAI denials from crashdump.

Test: build/flash Taimen. Verify no new denials.
Bug: 68319037
Change-Id: If39d057cb020def7afe89fd95e049e45cce2ae16

This allows an optimization that consists in the "perfetto" cmdline
client passing directly the file descriptor for the output trace
to traced (as opposite to having traced streaming back the trace
data to "perfetto" and having that one doing the write() into file).
This reduces sensibly the memory traffic and CPU overhead of traces
with a minor change.

Bug: 73625179
Test: builds + perfetto_integrationtests w/ long_trace.cfg
Change-Id: I81f5a230338ced20dc543fd91c5a0bd0e58725f2
Merged-In: I81f5a230338ced20dc543fd91c5a0bd0e58725f2
(cherry picked from aosp/648831)

The permission to allow system_server to access sys/fs/bpf/ directory
is missing. Add it back so it can get the bpf maps from the bpf_fs.

Test: device boot and no more denial information of system_server try to
searcg in fs_bpf
      atest android.net.cts.TrafficStatsTest
Bug: 75285088

Change-Id: I1040cde6c038eccc4e91c69a10b20aa7a18b19f6
(cherry picked from aosp commit f83bbd17)

Kernel modules are not permitted to be on /system partition.
That was one of Treble requirements in O:
https://source.android.com/devices/architecture/kernel/modular-kernels#file-locations

Bug: 74069409
Test: pixel/nexus devices don't have LKMs in /system, so this change
shoudl be harmless.
Test: walleye boots without issues from modprobe.
Merged-In: I8b3aeb55aacb3c99e0486224161d09a64bb52cd1
Change-Id: I8b3aeb55aacb3c99e0486224161d09a64bb52cd1

(cherry picked from commit 6ef9f523)

ro.config.low_ram should be set on Android Go devices by SoC vendors,
and the value can be read by vendor components.

Bug: 76132948
Bug: 75987246
Test: succeeded building and tested with taimen
Change-Id: I6ac98fa58cf641da4565d6277898fc5e5e6ceca1
Merged-In: I6ac98fa58cf641da4565d6277898fc5e5e6ceca1
(cherry picked from commit 7dd2e025)

So that perfprofd can send larger packets to dropbox.

Follow-up of commit 3fa95acb.

(cherry picked from commit c9df8437)

Bug: 73175642
Test: m
Test: manual
Merged-In: I88d1f83962243589909ff1ce3d02195e7c494256
Change-Id: I88d1f83962243589909ff1ce3d02195e7c494256

Based on the following audit message:

type=1400 audit(1521738979.005:385): avc: denied { write } for pid=1269
comm="Binder:1269_B" name="timerslack_ns" dev="proc" ino=254190
scontext=u:r:system_server:s0 tcontext=u:r:hal_audio_default:s0
tclass=file permissive=1

Bug: 74110604
Test: adb shell dmesg | grep hal_audio_default
Change-Id: I4c2e787588eb9d223d5e50e1bc8f67876de97c2e

Add sepolicy rule to grant Wifi HAL permission to use SIOCSIFHWADDR
ioctl. This permission is needed to dynamically change MAC address of
the device.

We are moving the implementation of setting the MAC address from
WifiCond to Vendor HAL to give vendors flexibility in supporting
Connected MAC Randomization. Will clean up WifiCond sepolicy afterwards.

Bug: 74347653
Test: Verified manually
Change-Id: I334cefddf385ecb1ee169eb692c4e0060c26d6d9

This CL adds the SELinux permissions required to execute
atrace and get userspace tracing events from system services.
This is to enable tracing of events coming from surfaceflinger,
audio HAL, etc.
atrace, when executed, sets a bunch of debug.atrace. properties
and sends an IPC via binder/hwbinder to tell the services to
reload that property.

This CL does NOT affect systrace. In that case (i.e. when
atrace is executed from adb/shell) atrace still runs in
the shell domain and none of those changes apply.

Change-Id: I11b096d5c5c5593f18bce87f06c1a7b1ffa7910e
Merged-In: I11b096d5c5c5593f18bce87f06c1a7b1ffa7910e
Merged-In: Iba195d571aec9579195d79d4970f760e417608c6
Bug: b/73340039