Statsd monitors battery capacity, which requires calls to the health
hal.
Fixes: 77923174
Bug: 77916472
Test: run cts-dev -m CtsStatsdHostTestCases -t android.cts.statsd.atom.HostAtomTests#testFullBatteryCapacity
Change-Id: I2d6685d4b91d8fbc7422dfdd0b6ed96bbddc0886
Updates statsd sepolicy so it can use the thermal hal.
Test: verified these policies solved sepolicy issues with thermal hal.
Change-Id: I36839a72494b084d5742c4d83c3ce9814102b974
These two selinux policy violations keep showing up from statsd's CTS
tests, although statsd and the CTS test seemed to function fine despite
them. Nonetheless, they seem reasonable to add to the list.
Bug: 73548694
Test: N/A. It didn't seem to be causing any issues in the first place.
Change-Id: Id36c5229c0d7de83675166caeb07c87b719dc374
To upload configs and download output, this line
is needed.
Bug: 72961153
Test: The statsd cts test passes
Change-Id: I0943cc841881dd5d15e24ba444b146087a81bf96
CTS tests need to be able to call, from hostside:
adb shell cmd stats dump-report (and others)
On a user build, this will fail because of an selinux policy violation
from shell. This cl fixes this by granting shell permission.
Similarly, Settings needs to communicate with statsd, so
system_app-statsd binder calls are given permission.
Bug: 72961153
Bug: 73255014
Test: run cts-dev -m CtsStatsdHostTestCases -t android.cts.statsd.atom.HostAtomTests
Test: manual confirmation
Change-Id: I6589ab4ef5c91a4a7f78eb97b63d9bb43e3d8f02
Test: Standard Traceur workflow works successfully with no
selinux denials on a user build.
Bug: 64762598
Change-Id: I0dfe506d463b63d70c5bda03f8706041ea7ab448
Instead of having statsd linking the perfetto client library
and talk directly to its socket, we let just statsd exec()
the /system/bin/perfetto cmdline client.
There are two reasons for this:
1) Simplify the interaction between statsd and perfetto, reduce
dependencies, binary size bloat and isolate faults.
2) The cmdline client also takes care of handing the trace to
Dropbox. This allows to expose the binder interaction surface
to the short-lived cmdline client and avoid to grant binder
access to the perfetto traced daemon.
This cmdline client will be used by:
- statsd
- the shell user (for our UI and Studio)
Bug: 70942310
Change-Id: I8cdde181481ad0a1a5cae5937ac446cedac54a1f
The exception for vendor_init in this neverallow was never needed.
Bug: 62875318
Test: Build walleye, bullhead
Change-Id: Iac2b57df30b376492851d7520994e0400a87f1e1
Perfetto is a performance instrumentation and logging framework,
living in AOSP's /external/pefetto.
Perfetto introduces in the system one binary and two daemons
(the binary can specialize in either depending on the cmdline).
1) traced: unprivileged daemon. This is architecturally similar to logd.
It exposes two UNIX sockets:
- /dev/socket/traced_producer : world-accessible, allows to stream
tracing data. A tmpfs file descriptor is sent via SCM_RIGHTS
from traced to each client process, which needs to be able to
mmap it R/W (but not X)
- /dev/socket/traced_consumer : privilege-accessible (only from:
shell, statsd). It allows to configure tracing and read the trace
buffer.
2) traced_probes: privileged daemon. This needs to:
- access tracingfs (/d/tracing) to turn tracing on and off.
- exec atrace
- connect to traced_producer to stream data to traced.
init.rc file:
https://android-review.googlesource.com/c/platform/external/perfetto/+/575382/14/perfetto.rc
Bug: 70942310
Change-Id: Ia3b5fdacbd5a8e6e23b82f1d6fabfa07e4abc405
This CL creates a traceur_app domain with userdebug privileges akin to
what shell has with regards to being able to find most services on
device. Previously, traceur was running as shell which was an
unintentional abuse of selinux architecture.
Bug: 68126425
Test: Traceur functions outside of shell user privilege
Change-Id: Ib5090e7e8225ad201b3ec24b506fe2717101d0f1
