Commit graph

53 commits

Author SHA1 Message Date
Steven Moreland
d5eccfd417 Init remove direct calls to light sys nodes.
These are halified. Instead launch blank_screen which
does the same task w/o init itself having binder
dependencies.

Bug: 70846424
Test: manual + reboot appears similar
Change-Id: If8b2a56cbc31077122ea81406721b06034e4498f
2018-01-19 14:45:10 -08:00
Wei Wang
25dc30f3be init: call umount unconditionally
std::all_of is using std::find_if, which means, if any element the given
predicate returns false, it stops further iteration and just returns false.
std::all_of used in Reboot.cpp will cause umount not to be called on all
block devices if some block device returns false in the middle.

Bug: 68158923
Test: reboot
Change-Id: I43ba6bd0c18018c1ed5fe2b63996552bc51cc67c
2017-10-23 16:25:31 -07:00
Mark Salyzyn
6290982ee3 init+bootstat: reduce last reboot reason to canonical alias
To make parsing easier for last reboot reason.  This also ensures that
last boot reason matches the content that is typically returned by the
bootloader or in turn landed in the canonical system boot reason.

Simplify parsing in bootstat.  Adjust and fix boot_reason_test.sh for
new reality.  Allow boot reason tests battery and kernel_panic to pass
if device does not support pstore (empty before and after the test).
If device somehow landed in fastboot mode while waiting for the
display, issue a fastboot reboot to move the test along.  Some cleanup
and standardization changes to the test script.

Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: I97d5467c0b4a6d65df3525f1a2d0051db813d5ad
2017-10-10 09:37:59 -07:00
Jaegeuk Kim
0f04f72c2d init/reboot: call MNT_FORCE at the last umount(2)
The last one will avoid errors=panic in ext4.

Test: Build
Bug: 63981945
Bug: 65481582
Change-Id: I9c86afcce441767e24fc43668ab1ff6230155a9f
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
2017-10-04 19:30:49 -07:00
Tom Cherry
cb0f9bbc85 init: run vendor commands in a separate SELinux context
One of the major aspects of treble is the compartmentalization of system
and vendor components, however init leaves a huge gap here, as vendor
init scripts run in the same context as system init scripts and thus can
access and modify the same properties, files, etc as the system can.

This change is meant to close that gap.  It forks a separate 'subcontext'
init that runs in a different SELinux context with permissions that match
what vendors should have access to.  Commands get sent over a socket to
this 'subcontext' init that then runs them in this SELinux context and
returns the result.

Note that not all commands run in the subcontext; some commands such as
those dealing with services only make sense in the context of the main
init process.

Bug: 62875318
Test: init unit tests, boot bullhead, boot sailfish

Change-Id: Idf4a4ebf98842d27b8627f901f961ab9eb412aee
2017-09-29 13:06:26 -07:00
Mark Salyzyn
bfd05b69a5 init: shutdown,thermal shut off display immediately
Remove a source of heat.

Test: manual
Change-Id: I9a7391ddb121b6748a4f49f4b5bfb77453ca1514
2017-09-26 14:06:51 -07:00
Luis Hector Chavez
9f97f47940 init: Allow clean system shutdown upon SIGTERM
This allows Android to cleanly shutdown when running in a PID namespace
in a way that does not rely on adbd running. This is useful to allow
Android to be running in a container and its lifetime managed by an
OCI-compliant tool.

Bug: 65415372
Test: `kill -TERM 1` as root is correctly dropped.
Test: `kill -TERM 1` from the init PID namespace causes init to cleanly shutdown.
Change-Id: Ia66ebdb436221919081bc4723337c0c7f1e53b09
2017-09-07 10:47:04 -07:00
Tom Cherry
9bde0dc769 Merge "init: log all failures of Service::Start()" 2017-08-28 17:22:11 +00:00
Tom Cherry
702ca9ada2 init: log all failures of Service::Start()
The move to returning Result from Service::Start() for better context
when starting process through init's builtins stops Service::Start()
failures from being logged from other contexts.  This change adds
those logs along with their context.

Test: boot bullhead, fail to start services via `setprop ctl.start`,
      see the expected error in dmesg

Change-Id: I45294f6abf00852f3d4c549a32eaf4920a51e6f0
2017-08-25 11:01:52 -07:00
Mark Salyzyn
73e6b49c0c Switch /data/misc/reboot/last_reboot_reason to persistent property
Switch from /data/misc/reboot/last_reboot_reason to persistent
Android property persist.sys.boot.reason for indicating why the
device is rebooted or shutdown.

persist.sys.boot.reason has a standard as outlined in b/63736262 and
the associated investigation. Made adjustments to the values so that
we did not create a problem even before we started. Compliance is
part of the tests in boot_reason_test.sh.

Test: system/core/bootstat/boot_reason_test.sh
Bug: 64687998
Change-Id: I812c55a12faf7cb7ff92101009be058ad9958d07
2017-08-24 15:13:48 -07:00
Tom Cherry
57a89f3ba0 Merge "init: replace panic() with LOG(FATAL)" 2017-08-18 15:49:46 +00:00
Tom Cherry
d8db7ab80d init: replace panic() with LOG(FATAL)
Test: boot bullhead
Test: Introduce LOG(FATAL) at various points of init and ensure that
      it reboots to the bootloader successfully
Test: Introduce LOG(FATAL) during DoReboot() and ensure that it reboots
      instead of recursing infinitely
Test: Ensure that fatal signals reboot to bootloader

Change-Id: I409005b6fab379df2d635e3e33d2df48a1a97df3
2017-08-17 18:16:51 -07:00
Wei Wang
8c00e42f20 Skip unnecessary sleep during shutdown
Skip sleep if timeout is zero
Skip sleep if first pass umount succeed

Bug: 64768138
Test: reboot
Change-Id: I5ef731611320ade51974b414f7e47520ce36b287
2017-08-16 15:41:12 -07:00
Tom Cherry
557946e57c init: use Result<T> for builtin functions
We currently throw out the return values from builtin functions and
occasionally log errors with no supporting context.  This change uses
the newly introduced Result<T> class to communicate a successful result
or an error back to callers in order to print an error with clear
context when a builtin fails.

Example:

init: Command 'write /sys/class/leds/vibrator/trigger transient' action=init (/init.rc:245) took 0ms and failed: Unable to write to file '/sys/class/leds/vibrator/trigger': open() failed: No such file or directory

Test: boot bullhead
Merged-In: Idc18f331d2d646629c6093c1e0f2996cf9b42aec
Change-Id: Idc18f331d2d646629c6093c1e0f2996cf9b42aec
2017-08-14 14:07:39 -07:00
Tom Cherry
0c8d6d2730 init: split security functions out of init.cpp
This change splits out the selinux initialization and supporting
functionality into selinux.cpp and splits the security related
initialization of the rng, etc to security.cpp.  It also provides
additional documentation for SEPolicy loading as this has been
requested by some teams.

It additionally cleans up sehandle and sehandle_prop.  The former is
static within selinux.cpp and new wrapper functions are created around
selabel_lookup*() to better serve the users.  The latter is moved to
property_service.cpp as it is isolated to that file for its usage.

Test: boot bullhead
Merged-In: Idc95d493cebc681fbe686b5160502f36af149f60
Change-Id: Idc95d493cebc681fbe686b5160502f36af149f60
2017-08-14 09:40:01 -07:00
Tom Cherry
911b9b1d6e init: rename ServiceManager to ServiceList and clean it up
ServiceManager is essentially just a list now that the rest of its
functionality has been moved elsewhere, so the class is renamed
appropriately.

The ServiceList::Find* functions have been cleaned up into a single
smaller interface.
The ServiceList::ForEach functions have been removed in favor of
ServiceList itself being directly iterable.

Test: boot bullhead
Change-Id: Ibd57c103338f03b83d81e8b48ea0e46cd48fd8f0
2017-08-01 11:06:17 -07:00
Tom Cherry
eeee83106b init: move reaping from ServiceManager to signal_handler.cpp
signal_handler.cpp itself needs to be cleaned up, but this is a step
to clean up ServiceManager.

Test: boot bullhead
Change-Id: I81f1e8ac4d09692cfb364bc702cbd3deb61aa55a
2017-08-01 11:06:17 -07:00
Tom Cherry
3b81f2d623 init: move exec operations out of ServiceManager
These can be implemented without ServiceManager, so we remove them and
make ServiceManager slightly less of a God class.

Test: boot bullhead
Test: init unit tests
Change-Id: Ia6e546fe5292255412245256f7d230af4ece135f
2017-08-01 11:06:04 -07:00
Tom Cherry
5938379e91 init: shutdown services in the opposite order that they started
Currently, the order that we kill to services during shutdown is the
order of services_ in ServiceManager and that is defacto the order in
which they were parsed, which is not a very useful ordering.

Related to this, we have seen a few issues during shutdown that may be
related to services with dependencies on other services, where the
dependency is killed first and the dependent service then misbehaves.

This change allows services to keep track of the order in which they
were started and shutdown then uses that information to kill running
services in the opposite order that they were started.

Bug: 64067984
Test: Boot and reboot bullhead

Change-Id: I6b4cacb03aed2a72ae98a346bce41ed5434a09c2
2017-07-26 16:48:06 -07:00
Wei Wang
a01c27eef8 Do not umount roofs even if it is R/W.
Latest device has rootfs instead of "/system" mount point

Bug: 37737296
Test: adb remount, reboot, and check log
Change-Id: I315ecf71e85255fc55c3a80619920b456bad0956
2017-07-25 10:55:10 -07:00
Wei Wang
1be2212319 init: Fire shutdown trigger for thermal shutdown
Recent change in init has bring normal shutdown sequence in
thermal-shutdown condition. This CL will make sure init fire shutdown
trigger where holds custom shutdown actions for vendor SoC/platform.

Bug: 63686426
Test: adb shell setprop sys.powerctl thermal-shutdown
Change-Id: Ieb8579fdf9c30c1a81d60466a7375c9784f3ca98
2017-07-24 13:12:22 -07:00
Keun-young Park
30173874fc init: Do full shutdown even for thermal shutdown
- Skipping SIGTERM / SIGKILL / umount brings race between block
  device driver and fs layer. Do umount before shutting down.
- Reduce timeout to 1 sec for thermal shutdown and skip other time
  taking part like fsck.
- Refactor waiting part to check time in ms so that 1 sec can
  have enough resolution.

bug: 63686426
Test: adb shell setprop sys.powerctl thermal-shutdown, adb shell setprop sys.powerctl reboot and check dmesg
Change-Id: I048bac767b328c8d656a97fe65dde5f2b5bf4ae5
2017-07-19 17:27:05 -07:00
Keun-young Park
c59b822d1f dump stack before kill all
- If problematic process is from user, kill all kills
  it and dump does not show problematic process.

bug: 37737296
Test: reboot and check log
Change-Id: Iaa4f7d12f5a40fa7528c6672567c36e30b140372
2017-07-18 18:52:25 -07:00
Keun-young Park
6e12b3887e Do not umount /vendor, /system, and /oem even if they are R/W.
- /vendor, /system, /oem can be remounted to R/W for development
  purpose.

- In such case, umounting these partitions can lead into some processes
  not running properly during shutdown or blocking umount of fs.

- So skip them. As it is dev feature, it is up to each developer to
  understand the risk. But for normal adb sync - reboot should be ok
  as shutdown involves sync operations.

bug: 37737296
Test: adb remount,reboot, and check last kmsg
Change-Id: Iab6a6374bc558375d359b3b49b14db93d363b1ad
2017-07-17 17:32:26 -07:00
Tom Cherry
ede0d53850 Move Timer from init to libbase
Test: boot bullhead
Test: new libbase unit tests

Change-Id: Ic398a1daa1fe92c10ea7bc1e6ac3f781cee9a5b5
2017-07-10 09:28:24 -07:00
Treehugger Robot
b3915d113d Merge "add "shutdown critical" to service" 2017-07-06 00:40:55 +00:00
Keun-young Park
cccb34fce8 add "shutdown critical" to service
- "shutdown critical" prevents killing the service during
  shutdown. And the service will be started if not running.
- Without it, services will be killed by SIGTERM / SIGKILL during shutdown.
- Even services with "shutdown critical" will be killed if shutdown
  times out.
- Removes ueventd and vold from hard coded list. Each service's rc will
  be updated to add "shutdown critical". watchdogd is still kept in the list.

bug: 37626581
Test: reboot and check last kmsg

Change-Id: Ie8cc699d1efbc59b9a2561bdd40fec64aed5a4bb
2017-07-05 14:55:22 -07:00
Wei Wang
eeab491efd init: Support custom shutdown actions
We have been seeing panics and errors during shutdown sequence in
some vendor's platform, and it is required to disable error handling
during shutdown.

This CL separates the shutdown request to execute another "shutdown"
trigger at the beginning of shutdown stage. And vendor can use this
trigger to add custom commands needed for shutting down gracefully.

Bug: 38203024
Bug: 62084631
Test: device reboot/shutdown
Change-Id: I3fac4ed59f06667d86e477ee55ed391cf113717f
2017-07-05 14:49:57 -07:00
Nick Kralevich
33391dad15 Remove unnecessary SELinux dependencies
These are unused.

Test: code compiles.
Change-Id: Idd707dfcc8f6daac3a489c791ecc364841cf31f9
2017-07-01 07:41:48 -07:00
Luis Hector Chavez
519e5f0592 init: Reland "Terminate gracefully when CAP_SYS_BOOT is absent"
This change makes it possible for Android running in a container to
terminate cleanly instead of calling abort() when requested to shut
down.

Bug: 62388055
Test: `adb reboot` on bullhead causes no kernel panics
Test: `adb reboot` on a system without CAP_SYS_BOOT makes init terminate
       nicely

Change-Id: I36b2298610f5b4a2bf8b05103d04804883df2c88
2017-06-29 14:41:23 -07:00
Guang Zhu
c22f93856f Revert "init: Terminate gracefully when CAP_SYS_BOOT is absent"
Bug: 63080844

This reverts commit 683ebc8059.

Change-Id: I6074ff09300fd30bfc66881ded1c4f868a845a91
2017-06-28 02:10:33 +00:00
Luis Hector Chavez
683ebc8059 init: Terminate gracefully when CAP_SYS_BOOT is absent
This change makes it possible for Android running in a container to
terminate cleanly instead of calling abort() when requested to shut
down.

Bug: 62388055
Test: setprop sys.powerctl reboot makes init terminate nicely

Change-Id: I31c7b475d89d7cbd665e135d9b8951dfd4bca80d
2017-06-27 13:51:46 -07:00
Tom Cherry
81f5d3ebef init: create android::init:: namespace
With some small fixups along the way

Test: Boot bullhead
Test: init unit tests
Change-Id: I7beaa473cfa9397f845f810557d1631b4a462d6a
2017-06-23 13:21:20 -07:00
Keun-young Park
7264bee975 add ueventd to shutdown critial process
- In some devices, some drivers still try to load firmware while shutting
  down, and crashes the kernel. So keep ueventd to prevent such case.

bug: 38203024
Test: reboots
Change-Id: I4f1910723254ccb69f8e9c78e8727fbd8c7eed3e
2017-05-18 20:58:10 +00:00
Treehugger Robot
59c74a3bd1 Merge "init: fix last_reboot_reason string" 2017-04-27 19:39:53 +00:00
Keun-young Park
47d15ed5b9 Merge "set default shutdown timeout to 6 secs" 2017-04-26 22:35:26 +00:00
Treehugger Robot
84d43c8df7 Merge "do not start shutdown animation from init" 2017-04-26 20:59:56 +00:00
Keun-young Park
7feab68238 set default shutdown timeout to 6 secs
- Test data shows that most shutdown finishes in 6 secs.
- The original 10 secs is too long wih no shutdown animation
  running in screen.

bug: 36657139
Test: check time with reboot
Change-Id: I9a805ddfde8156b066485902048d0cd01365c453
2017-04-26 13:58:31 -07:00
Keun-young Park
1663e97fe1 add additional dump for timeout
- add sysrq-trigger current tasks dump
- This helps detecting kernel thread stuck in a specific driver

bug: 37573746
Test: python packages/services/Car/tools/bootanalyze/bootanalyze.py -r -c packages/services/Car/tools/bootanalyze/config.yaml -n 2000 -f -e 15 -w 30  -v -a

Change-Id: Icb20b5fba63d601bb937f004f5889a9bc8340b34
2017-04-26 10:16:23 -07:00
Tom Cherry
47336cebc3 init: fix last_reboot_reason string
This got moved when refactoring the reboot commands.

Bug: 37540660
Test: verify bullhead's last_reboot_reason is correct
Change-Id: I3b86496fc469ca41645df7e7ba8bb51dd25b6b38
2017-04-26 16:17:08 +00:00
Keun-young Park
e2b04b71ae do not start shutdown animation from init
- init will only keep animation related services as shutdown critical.
- external component like system server can start shutdown animation.

bug: 37500823
Test: reboot
Change-Id: Ief328306eba7e3b15402ae27e6236767095f508c
2017-04-19 14:30:25 -07:00
Tom Cherry
98ad32a967 init: handle sys.powerctl immediately
Currently if a process sets the sys.powerctl property, init adds this
property change into the event queue, just like any other property.
The actual logic to shutdown the device is not executed until init
gets to the action associated with the property change.

This is bad for multiple reasons, but explicitly causes deadlock in
the follow scenario:

A service is started with `exec` or `exec_start`
The same service sets sys.powerctl indicating to the system to
shutdown
The same service then waits infinitely

In this case, init doesn't process any further commands until the exec
service completes, including the command to reboot the device.

This change causes init to immediately handle sys.powerctl and reboot
the device regardless of the state of the event queue, wait for exec,
or wait for property conditions.

Bug: 37209359
Bug: 37415192

Test: Init reboots normally
Test: Update verifier can reboot the system
Change-Id: Iff2295aed970840f47e56c4bacc93001b791fa35
2017-04-17 16:40:06 -07:00
Todd Poynor
fc827be3f9 reboot: fix owner and permissions of last_reboot_reason file
Default signature WriteStringToFile creates world-writeable files.
Set owner and group system and remove read/write for non-owner.

Bug: 37251463
Test: Manual: reboot, inspect
Change-Id: I6a29c678168dcae611b120dc52170f4eee7069a9
2017-04-13 18:03:59 -07:00
Keun-young Park
2ba5c8103d poll umount completion from /proc/mounts
- umount operation is asynchronous except for root partition.
  Returning from umount does not guarantee completion of
  umount. Poll /proc/mounts to confirm completion of umount.
- Treat all devices mounting to /data as emulated devices. This is
  future proof when fs other than sdcardfs is used.
- Drop quota sync from sync step. There is no differences in
  frequencies of quota error.
- Run umount in reverse order from mounting order so that any
  hidden dependency can be auto-resolved.
- Add dump of lsof and /proc/mounts when umount fails. lsof only runs
  when selinux is toggled into permissive mode. The dump is enabled
  only for non-user build.
- Keep logcat until vold shutdown in case vold has any error to report.

bug: 36551218
Test: python packages/services/Car/tools/bootanalyze/bootanalyze.py -r -c packages/services/Car/tools/bootanalyze/config.yaml -n 1000 -f -e 20 -w 30

Change-Id: I87b17b966d7004c205452d81460b02c6acf50d45
2017-04-10 15:41:15 -07:00
Tom Cherry
3f5eaae526 init: more header cleanup
Remove includes of "log.h" that really want <android-base/logging.h>
Fix header include order
Remove headers included in .cpp files that their associated .h already includes
Remove some unused headers

Test: boot bullhead
Change-Id: I2b415adfe86a5c8bbe4fb1ebc53c7b0ee2253824
2017-04-06 18:06:34 -07:00
Keun-young Park
7830d59500 add shutdown animation
- Run shutdown animation during shutdown if surfaceflinger is
  available / running.
- services necessary for animation should be added to animation
  class.
- Keep debugging tools while non-critical services are terminated:
  logd, adbd, tombstoned

bug: 36526187
Test: many reboots

Change-Id: I758f700a622c6005f3df9f29de2b55270055ad4d
2017-03-31 16:48:20 -07:00
Keun-young Park
c4ffa5c47d set zero shutdown timeout for eng build
- still it will take time to kill services, < 3 secs in tested device.

bug: 36678028
Test: reboot
Change-Id: I3f3eb83aede8cd950da12e3fcc259eeaf8517c3b
2017-03-29 12:25:33 -07:00
Tom Cherry
ccf23537ee init: replace property_get with its android::base equivalent
Slowly try to decouple property_service.cpp from the rest of init.

Test: Boot bullhead
Change-Id: I267ae0b057bca0bf657b97cb8bfbb18199282729
2017-03-29 10:07:54 -07:00
Tom Cherry
1ec1bd918c init: remove unused cutils includes
Test: Boot bullhead
Change-Id: I629f9c3863f00fa38f87a68442c2380d28764718
2017-03-28 16:22:33 -07:00
Keun-young Park
3ee0df9bdf update shutdown sequence and use shutdown_timeout to cover all wait
- Use ro.build.shutdown_timeout to cover the total time for shutdown.
  Limit wait time for termination only to half of shutdown_timeout
  with max of 3 secs as process not terminating by that time
  will not terminate anyway. It is better to move to the next
  stage quickly. fsck time for user shutdown is excluded from timeout.
- Change last detach to kill, sync, and umount. Last detach did not
  work in many tests.
- add sync after emulated partitions umount as it can trigger
  change in /data.

bug: 36551393
Test: many reboots
Change-Id: Ib75dc19af79b8326b02ccef6b16a8817ae7f8b0e
2017-03-27 13:44:50 -07:00