Commit Graph
5035 Commits
Author SHA1 Message Date
Zbigniew Jędrzejewski-Szmek 74e6a78221 Merge pull request #13440 from keszybz/failing-condtion-check
Revert "core: check start limit on condition checks too"
2019-09-03 10:04:05 +02:00
Dimitri John Ledkov 8fa0de653b Generate stable machine-id and DHCP client ID on POWER KVM. 2019-08-31 10:57:16 +02:00
Zbigniew Jędrzejewski-Szmek 6b4f7fb08c Merge pull request #13385 from yuwata/core-remove-private-directories-13355
core: also remove private directories by systemctl clean
2019-08-31 09:28:39 +02:00
Michael Biebl 07125d24ee Drop dbus activation stub service
This fixes the following problem:

> At the very end of the boot, just after the first user logs in
> (usually using sddm / X) I get the following messages in my logs:
> Nov 18 07:02:33 samd dbus-daemon[2879]: [session uid=1000 pid=2877] Activated service 'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 exited with status 1
> Nov 18 07:02:33 samd dbus-daemon[2879]: [session uid=1000 pid=2877] Activated service 'org.freedesktop.systemd1' failed: Process org.freedesktop.systemd1 exited with status 1

These messages are caused by the "stub" service files that systemd
installs. It installed them because early versions of systemd activation
required them to exist.

Since dbus 1.11.0, a dbus-daemon that is run with --systemd-activation
automatically assumes that o.fd.systemd1 is an activatable
service. As a result, with a new enough dbus version,
/usr/share/dbus-1/services/org.freedesktop.systemd1.service and
/usr/share/dbus-1/system-services/org.freedesktop.systemd1.service should
become unnecessary, and they can be removed.

dbus 1.11.0 was released 2015-12-02.

Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914015
2019-08-30 18:26:43 +02:00
Zbigniew Jędrzejewski-Szmek 5af6aa58aa Revert "core: check start limit on condition checks too"
This reverts commit 2de9b9793b.

This check causes regressions, in particular our own units fail. Apparently, it
is enough for the unit to be referenced enough times:

$ journalctl -b -u systemd-ask-password-console.path
Aug 30 12:08:14 krowka systemd[1]: Condition check resulted in Dispatch Password Requests to Console Directory Watch being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in Dispatch Password Requests to Console Directory Watch being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in Dispatch Password Requests to Console Directory Watch being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in Dispatch Password Requests to Console Directory Watch being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in Dispatch Password Requests to Console Directory Watch being skipped.
Aug 30 12:08:33 krowka systemd[1]: systemd-ask-password-console.path: Start request repeated too quickly.
Aug 30 12:08:33 krowka systemd[1]: Failed to start Dispatch Password Requests to Console Directory Watch.

$ journalctl -b -u systemd-firstboot.service
-- Logs begin at Sun 2019-04-21 12:39:21 CEST, end at Fri 2019-08-30 12:23:06 CEST. --
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in First Boot Wizard being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in First Boot Wizard being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in First Boot Wizard being skipped.
Aug 30 12:08:33 krowka systemd[1]: Condition check resulted in First Boot Wizard being skipped.
Aug 30 12:08:33 krowka systemd[1]: systemd-firstboot.service: Start request repeated too quickly.
Aug 30 12:08:33 krowka systemd[1]: Failed to start First Boot Wizard.

And the same for other units.

Fixes #13434.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=935829
2019-08-30 18:21:05 +02:00
Zbigniew Jędrzejewski-Szmek 3a5a08bbb4 Merge pull request #13384 from yuwata/core-runtime-directory-preserve
core: make RuntimeDirectoryPreserve= works with non-service units
2019-08-30 13:00:57 +02:00
Yu Watanabe 4b259b3c63 Merge pull request #13244 from keszybz/allow-dots-in-usernames
Allow dots in usernames
2019-08-29 00:03:19 +09:00
Yu Watanabe 12213aed12 core: move timeout_clean_usec from Service to ExecContext 2019-08-28 23:09:54 +09:00
Yu Watanabe 7f622a19d9 core: also remove private directories by systemctl clean
Fixes #13355.
2019-08-28 23:09:44 +09:00
Zbigniew Jędrzejewski-Szmek db11487d10 manager: put bin before sbin for user instances
Traditionally, user logins had a $PATH in which /bin was before /sbin, while
root logins had a $PATH with /sbin first. This allows the tricks that
consolehelper is doing to work. But even if we ignore consolehelper, having the
path in this order might have been used by admins for other purposes, and
keeping the order in user sessions will make it easier the adoption of systemd
user sessions a bit easier.

Fixes #733.
https://bugzilla.redhat.com/show_bug.cgi?id=1744059

OOM handling in manager_default_environment wasn't really correct.
Now the (theorertical) malloc failure in strv_new() is handled.

Please note that this has no effect on:
- systems with merged /bin-/sbin (e.g. arch)

- when there are no binaries that differ between the two locations.

  E.g. on my F30 laptop there is exactly one program that is affected:
  /usr/bin/setup -> consolehelper.

  There is less and less stuff that relies on consolehelper, but there's still
  some.

So for "clean" systems this makes no difference, but helps with legacy setups.

$ dnf repoquery --releasever=31 --qf %{name} --whatrequires usermode
anaconda-live
audit-viewer
beesu
chkrootkit
driftnet
drobo-utils-gui
hddtemp
mate-system-log
mock
pure-ftpd
setuptool
subscription-manager
system-config-httpd
system-config-rootpassword
system-switch-java
system-switch-mail
usermode-gtk
vpnc-consoleuser
wifi-radar
xawtv
2019-08-27 18:24:44 +02:00
Zbigniew Jędrzejewski-Szmek 581fef8d56 core: stop removing non-existent and duplicate lookup paths
When we would iterate over the lookup paths for each unit, making the list as
short as possible was important for performance. With the current cache, it
doesn't matter much. Two classes of paths were being removed:
- paths which don't exist in the filesystem
- paths which symlink to a path earlier in the search list
Both of those points cause problems with the caching code:
- if a user creates a directory that didn't exist before and puts units there,
  now we will notice the new mtime an properly load the unit. When the path
  was removed from list, we wouldn't.
- we now properly detect whether a unit path is on the path or not.
  Before, if e.g. /lib/systemd/system, /usr/lib/systemd/systemd were both on
  the path, and /lib was a symlink to /usr/lib, the second directory would be
  pruned from the path. Then, the code would think that a symlink
  /etc/systemd/system/foo.service→/lib/systemd/system/foo.service is an alias,
  but /etc/systemd/system/foo.service→/usr/lib/systemd/system/foo.service would
  be considered a link (in the systemctl link sense).

Removing the pruning has a slight negative performance impact in case of
usr-merge systems which have systemd compiled with non-usr-merge paths.
Non-usr-merge systems are deprecated, and this impact should be very small, so
I think it's OK. If it turns out to be an issue, the loop in function that
builds the cache could be improved to skip over "duplicate" directories with
same logic that the cache pruning did before. I didn't want to add this,
becuase it complicates the code to improve a corner case.

Fixes #13272.
2019-08-27 18:12:20 +02:00
Yu Watanabe 494d0247f9 core: introduce exec_directory_is_private() helper function
Also, this follows up 40cd2ecc26.
2019-08-25 16:27:42 +09:00
Yu Watanabe 52a12341f9 core: make RuntimeDirectoryPreserve= works with non-service units 2019-08-23 00:08:16 +09:00
Yu Watanabe 95939aed21 core: introduce unit_destroy_runtime_directory()
Currently `unit_will_restart()` can return true only when the unit is
service. Hence, should not change anything.
2019-08-22 23:50:52 +09:00
Anita Zhang 23f8fbb303 core: TAKE_PTR in timer_add_one_calendar_spec
Introduced in d00a52c

Fixes #13373
2019-08-22 11:02:56 +02:00
Zbigniew Jędrzejewski-Szmek 5cc2cd1cd8 pid1: always log successfull process termination quietly
Fixes #13372.
2019-08-22 09:09:45 +02:00
Zbigniew Jędrzejewski-Szmek 4dba44a5a5 pid1: after creating transient drop-ins, put file in path cache
The alternative would be to recreate the cache, but dropins can be created very
often for transient settings, so updating the cache seems like a much faster
option.

Fixes #13287.
2019-08-21 15:35:21 +02:00
Lennart Poettering ea7584329b manager: simplify manager_get_confirm_spawn() a bit
Let's use our usual way of storing error codes.

Let's remove a redundant temporary variable we never change
2019-08-20 17:34:19 +02:00
Lennart Poettering 4a8daee72f load-fragment: use path_join() where appropriate 2019-08-20 17:32:34 +02:00
Kai Krakow 2dbc45aea7 cgroup: Also set io.bfq.weight
Current kernels with BFQ scheduler do not yet set their IO weight
through "io.weight" but through "io.bfq.weight" (using a slightly
different interface supporting only default weights, not per-device
weights). This commit enables "IOWeight=" to just to that.

This patch may be dropped at some time later.

Github-Link: https://github.com/systemd/systemd/issues/7057
Signed-off-by: Kai Krakow <kai@kaishome.de>
2019-08-20 11:50:59 +02:00
Zbigniew Jędrzejewski-Szmek ae480f0b09 shared/user-util: allow usernames with dots in specific fields
People do have usernames with dots, and it makes them very unhappy that systemd
doesn't like their that. It seems that there is no actual problem with allowing
dots in the username. In particular chown declares ":" as the official
separator, and internally in systemd we never rely on "." as the seperator
between user and group (nor do we call chown directly). Using dots in the name
is probably not a very good idea, but we don't need to care. Debian tools
(adduser) do not allow users with dots to be created.

This patch allows *existing* names with dots to be used in User, Group,
SupplementaryGroups, SocketUser, SocketGroup fields, both in unit files and on
the command line. DynamicUsers and sysusers still follow the strict policy.
user@.service and tmpfiles already allowed arbitrary user names, and this
remains unchanged.

Fixes #12754.
2019-08-19 21:19:13 +02:00
Zbigniew Jędrzejewski-Szmek d2a236929b core: remove one {} 2019-08-19 21:04:57 +02:00
Mattias Jernberg a5a8776ae5 core: Avoid race when starting dbus services
In high load scenarios it is possible for services to be started
before the NameOwnerChanged signal is properly installed.

Emulate a callback by also queuing a GetNameOwner when the match is
installed.

Fixes: #12956
2019-08-14 16:12:31 +02:00
Zbigniew Jędrzejewski-Szmek 4c071d7f2a meson: create (empty) /etc/systemd/system during installation
We explicitly create /etc/systemd/user and other parts of the basic directory
tree. I think we should create /etc/systemd/system too. (The alternative would
be to not create those other directories too, but I think it's nice to have
the basic directory structure in place after installation.)

https://bugzilla.redhat.com/show_bug.cgi?id=1737362
2019-08-06 03:11:09 +09:00
Zbigniew Jędrzejewski-Szmek a4fc96c823 pid1: replace asprintf() with strjoin()
It's nicer. And coverity doesn't need to complain about unchecked return
value (CID#1401780).
2019-08-03 17:46:56 +02:00
Lennart Poettering 735a8b6d38 job: fix coverity issue
Fixes coverity issue 1403550
2019-07-31 09:45:03 +02:00
Lennart Poettering 5756bff6f1 Merge pull request #13119 from keszybz/unit-loading-2
Rework unit loading to take into account all aliases
2019-07-30 17:55:37 +02:00
Zbigniew Jędrzejewski-Szmek 91e0ee5f16 pid1: drop unit caches only based on mtime
v2:
- do not watch mtime of transient and generated dirs

  We'd reload the map after every transient unit we created, which we don't
  need to do, since we create those units ourselves and know their fragment
  path.
2019-07-30 14:01:46 +02:00
Zbigniew Jędrzejewski-Szmek e8630e6952 pid1: use a cache for all unit aliases
This reworks how we load units from disk. Instead of chasing symlinks every
time we are asked to load a unit by name, we slurp all symlinks from disk
and build two hashmaps:
1. from unit name to either alias target, or fragment on disk
   (if an alias, we put just the target name in the hashmap, if a fragment
    we put an absolute path, so we can distinguish both).
2. from a unit name to all aliases

Reading all this data can be pretty costly (40 ms) on my machine, so we keep it
around for reuse.

The advantage is that we can reliably know what all the aliases of a given unit
are. This means we can reliably load dropins under all names. This fixes #11972.
2019-07-30 14:01:46 +02:00
Lennart Poettering e04ed6db6b exit-status: rename EXIT_STATUS_GLIBC → EXIT_STATUS_LIBC
After all these two exit codes are defined by ISO C as part of the C
library, and it's not the GNU implementation defines them.
2019-07-29 19:05:25 +02:00
Lennart Poettering 1d7458fbb1 Merge pull request #13207 from keszybz/symbolic-exit-code-names
Symbolic exit code names
2019-07-29 18:58:06 +02:00
Zbigniew Jędrzejewski-Szmek 37109b856a pid1: use LOG_DEBUG/INFO/NOTICE for unit resource consumption message
We now log at LOG_INFO for any unit. Let's vary the log level
a bit, so that for normal short lived-units (less than 1 sec CPU),
we only log if debugging is enabled.
2019-07-29 18:50:31 +02:00
Zbigniew Jędrzejewski-Szmek e7b9f4d9fa pid1: fix message about triggers missing services
systemd[1]: systemd-tmpfiles-clean.timer: Refusing to start, unit systemd-tmpfiles-cle
an.timer to trigger not loaded.
2019-07-29 15:54:53 +02:00
Zbigniew Jędrzejewski-Szmek 2e2ed88062 pid1,systemctl: allow symbolic exit code names 2019-07-29 15:54:53 +02:00
Zbigniew Jędrzejewski-Szmek 62b21e2e89 shared/bus-util: fix dbus serialization of {RestartPrevent,RestartForce,Success}ExitStatus
We were passing 1/4th of the size in bytes as argument. So depending
on the size of the array, either we'd only transfer a subset of values,
or we'd get an alignment error.
2019-07-29 15:54:53 +02:00
Zbigniew Jędrzejewski-Szmek 23d5dd1687 shared/exit-status: use Bitmap instead of Sets
I opted to embed the Bitmap structure directly in the ExitStatusSet.
This means that memory usage is a bit higher for units which don't define
this setting:

Service changes:
        /* size: 2720, cachelines: 43, members: 73 */
        /* sum members: 2680, holes: 9, sum holes: 39 */
        /* sum bitfield members: 7 bits, bit holes: 1, sum bit holes: 1 bits */
        /* last cacheline: 32 bytes */

        /* size: 2816, cachelines: 44, members: 73 */
        /* sum members: 2776, holes: 9, sum holes: 39 */
        /* sum bitfield members: 7 bits, bit holes: 1, sum bit holes: 1 bits */

But this way the code is simpler and we do less pointer chasing.
2019-07-29 15:54:53 +02:00
Zbigniew Jędrzejewski-Szmek e1714f0250 shared/exit-status: turn status level into a bitmask, add "test"
The "test" doesn't really test much automatically, but it is still useful
to look at the mappings.
2019-07-29 15:54:45 +02:00
Lennart Poettering c18ecf0375 core: take random seed from boot loader and credit it to kernel entropy pool 2019-07-25 18:16:46 +02:00
Lennart Poettering 0a2eef1ee1 core: try to reopen /dev/kmsg again right after mounting /dev
I was debugging stuff during early boot, and was confused that I never
found the logs for it in kmsg. The reason for that was that /proc is
generally not mounted the first time we do log_open() and hence
log_set_target(LOG_TARGET_KMSG) we do when running as PID 1 had not
effect. A lot later during start-up we call log_open() again where this
is fixed (after the point where we close all remaining fds still open),
but in the meantime no logs every got written to kmsg. This patch fixes
that.
2019-07-24 19:56:51 +02:00
Lennart Poettering 544ad34257 Merge pull request #13118 from bluca/shutdown_watchdog_kexec
core: add KExecWatchdogSec and rename ShutdownWatchdogSec to RebootWatchdogSec
2019-07-24 11:11:03 +02:00
Lennart Poettering 623f20fb41 core: add spdx header to all-units.h
The specific header file is probably not copyrightable anyway, since
it's so trivial, but let's still add the SPDX header line so that a
systematic check for the line does't spit out this header needlessly.
2019-07-24 05:06:21 +09:00
Luca Boccassi 65224c1d0e core: rename ShutdownWatchdogSec to RebootWatchdogSec
This option is only used on reboot, not on other types of shutdown
modes, so it is misleading.
Keep the old name working for backward compatibility, but remove it
from the documentation.
2019-07-23 20:29:03 +01:00
Luca Boccassi acafd7d8a6 core: add KExecWatchdogSec option
Rather than always enabling the shutdown WD on kexec, which might be
dangerous in case the kernel driver and/or the hardware implementation
does not reset the wd on kexec, add a new timer, disabled by default,
to let users optionally enable the shutdown WD on kexec separately
from the runtime and reboot ones. Advise in the documentation to
also use the runtime WD in conjunction with it.

Fixes: a637d0f9ec ("core: set shutdown watchdog on kexec too")
2019-07-23 20:29:03 +01:00
Zbigniew Jędrzejewski-Szmek a505166845 Merge pull request #13096 from keszybz/unit-loading
Preparatory work for the unit loading rework
2019-07-19 21:47:10 +02:00
Zbigniew Jędrzejewski-Szmek 5cfa33e0bc Create src/shared/unit-file.[ch] for unit-file related ops
So far we put such functinos in install.[ch], but that is tied too closely
to enable/disable. Let's start moving things to a place with a better name.
2019-07-19 16:51:14 +02:00
Zbigniew Jędrzejewski-Szmek 96cf3ec966 pid1: get rid of unit_supported() helper
Another case where "open code" is easier to read than the helper.
2019-07-19 16:51:14 +02:00
Zbigniew Jędrzejewski-Szmek f4c43a8115 pid1: do not say "(null)" if no disabled controllers
It looks like we made a mistake. The list is just empty, that's all.
2019-07-19 16:51:14 +02:00
Zbigniew Jędrzejewski-Szmek 8d5e593146 pid1: simplify timestamp buffer declaration 2019-07-19 16:51:14 +02:00
Zbigniew Jędrzejewski-Szmek 217b7b33cc pid1: order jobs that execute processes with lower priority
We can meaningfully compare jobs for units which have cpu weight or nice set.
But non-exec units those have those set.

Starting non-exec jobs first allows us to get them out of the queue quickly,
and consider more jobs for starting.

If we have service A, and socket B, and service C which is after socket B,
and we want to start both A and C, and C has higher cpu weight, if we get
B out of the way first, we'll know that we can start both A and C, and we'll
start C first.

Also invert the comparisons using CMP() so they are always done left vs. right,
and negate when returning instead.

Follow-up for da8e178296.
2019-07-19 14:38:52 +09:00
Luca Boccassi a637d0f9ec core: set shutdown watchdog on kexec too
At the moment the shutdown watchdog is set only when rebooting.
The set of "things that can go wrong" is not too far off when kexec'ing
and in fact we have a use case where it would be useful - moving to a
new kernel image.
2019-07-18 22:31:43 +02:00