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This is done exactly the same way a couple of times at various places, let's
unify this into one version.
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state (#3874)
Otherwise for example services that are failing on start and have Restart=on-failure
and bigger RestartSec systemctl status will return 0.
Fixes: #3864
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Fixes #3813.
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systemd now returns an error when it is asked to perform disable on the
unit file path. In the past this was allowed, but systemd never really
considered an actual content of the [Install] section of the unit
file. Instead it performed disable on the unit name, i.e. purged all
symlinks pointing to the given unit file (undo of implicit link action
done by systemd when enable is called on the unit file path) and all
symlinks that have the same basename as the given unit file.
However, to notice that [Install] info of the file is not consulted one
must create additional symlinks manually. I argue that in most cases
users do not create such links. Let's be nice to our users and don't
break existing scripts that expect disable to work with the unit file
path.
Fixes #3706.
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It is only used with info allocated on the stack, so the pointer cannot be
NULL.
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% valgrind --leak-check=full systemctl status multipathd.service --no-pager -n0
...
==431== 16 bytes in 2 blocks are definitely lost in loss record 1 of 2
==431== at 0x4C2BBAD: malloc (vg_replace_malloc.c:299)
==431== by 0x534AF19: strdup (in /usr/lib64/libc-2.23.so)
==431== by 0x4E81AEE: free_and_strdup (string-util.c:794)
==431== by 0x4EF66C1: map_basic (bus-util.c:1030)
==431== by 0x4EF6A8E: bus_message_map_all_properties (bus-util.c:1153)
==431== by 0x120487: show_one (systemctl.c:4672)
==431== by 0x1218F3: show (systemctl.c:4990)
==431== by 0x4EC359E: dispatch_verb (verbs.c:92)
==431== by 0x12A3AE: systemctl_main (systemctl.c:7742)
==431== by 0x12B1A8: main (systemctl.c:8011)
==431==
==431== LEAK SUMMARY:
==431== definitely lost: 16 bytes in 2 blocks
This happens because map_basic() strdups the strings. Other code in systemctl
assigns strings to UnitStatusInfo without copying them, relying on the fact
that the message is longer lived than UnitStatusInfo. Add a helper function
that is similar to map_basic, but only accepts strings and does not copy them.
The alternative of continuing to use map_basic() but adding proper cleanup
to free fields in UnitStatusInfo seems less attractive because it'd require
changing a lot of code and doing a lot of more allocations for little gain.
(I put "leaking" in quotes, because systemctl is short lived anyway.)
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There is no functional change, but clarity of the code is increased
by splitting out the cleanup part and putting it next to the structure
definition.
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"systemctl enable"
Clarify that "systemctl enable" can operate either on unit names or on unit
file paths (also, adjust the --help text to clarify this). Say that "systemctl
enable" on unit file paths also links the unit into the search path.
Many other fixes.
This should improve the documentation to avoid further confusion around #3706.
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uuid/id128 code rework
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Don't check inhibitors when operating remotely. The interactivity inhibitors
imply can#t be provided anyway, and the current code checks for local sessions
directly, via various sd_session_xyz() APIs, hence bypass it entirely if we
operate on remote systems.
Fixes: #3476
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If we show both a control and a main PID for a service fix this line in the
output of "systemctl status":
Main PID: 19670 (sleep); : 19671 (sleep)
to become this:
Main PID: 19670 (sleep); Control PID: 19671 (sleep)
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When unit has multiple condition list, systemctl is not showing which
conditions were failed. When user want to know which conditions were
failed, user has to check for each conditions.
So, show failed condition list also.
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fixes https://bugzilla.redhat.com/show_bug.cgi?id=842060
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“systemctl show” added an extra blank line after the dump of the
EnvironmentFile property of the unit.
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We really shouldn't make up errors like "-1", but use proper errno definitions.
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Systemctl fixes
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In https://github.com/systemd/systemd/issues/3543, we would open the pager
before starting ssh, and the pipe fd was "leaked" into the ssh child as the
stderr fd. Previous commit fixes bus-socket to nullify stderr before launching
the child, but it seems reasonable to also delay starting the pager.
If we are going to croak when trying to open the transport, it seems better
to do this before starting the pager.
This commit would also fix #3543 on its own.
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the pager (#3550)
If "systemctl -H" is used, let's make sure we first terminate the bus
connection, and only then close the pager. If done in this order ssh will get
an EOF on stdin (as we speak D-Bus through ssh's stdin/stdout), and then
terminate. This makes sure the standard error we were invoked on is released by
ssh, and only that makes sure we don't deadlock on the pager which waits for
all clients closing its input pipe.
(Similar fixes for the various other xyzctl tools that support both pagers and
-H)
Fixes: #3543
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When running systemctl from git on systemd from systemd-229-8.fc24.x86_64,
ListUnitsByPatterns results in org.freedesktop.DBus.Error.AccessDenied.
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Second attempt had no effect anyway.
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This reworks "systemctl status" and "systemctl show" a bit. It removes the
definition of the `property_info` structure, because we can simply reuse the
existing UnitStatusInfo type for that.
The "could not be found" message is now printed by show_one() itself (and not
its caller), so that it is shown regardless by who the function is called.
(This makes it necessary to pass the unit name to the function.)
This also adds all properties found to a set, and then checks if any of the
properties passed via "--property=" is mising in it, if so, a proper error is
generated.
Support for checking the PID file of a unit is removed, as this cannot be done
reasonably client side (since the systemd instance we are talking to might sit
on another host)
Replaces: #3411
Fixes: #3425
Also see: #3504
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... as well as halt/poweroff/kexec/suspend/hibernate/hybrid-sleep.
Running those commands will fail in user mode, but we try to set the wall
message first, which might even succeed for privileged users. Best to nip
the whole sequence in the bud.
https://github.com/systemd/systemd/pull/3453#issuecomment-225455156
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Reloading or reexecuting PID 1 means the unit generators are rerun, which are
timed out at 90s. Make sure the method call asking for the reload is timed out
at twice that, so that the generators have 90s and the reload operation has 90s
too.
This reworks the daemon_reload() call in systemctl, and makes it exclusively
about reloading/reexecing. Previously it was used for other trivial method
calls too, which didn't really help readability. As the code paths are now
sufficiently different, split out the old code into a new function
trivial_method().
This call also does a similar change as
c8ad4efb277c3235d58789170af11bb3c847d655 but for the reload/reexec operation.
Fixes: #3353
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For legacy commands such as /sbin/halt or /sbin/poweroff we support legacy
fallbacks that talk via traditional SysV way with PID 1 to issue the desired
operation. We do this on any kind of error if the primary method of operation
fails. When this is the case we suppress any error message that is normally
generated, in order to not confuse the user. When suppressing this log message,
don't suppress the original error code, because there's really no reason to.
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This makes systemctl robust regarding journal truncation.
This is a follow-up for 2cf4172a71860c6e44
Fixes:
Core was generated by `./systemctl status systemd-journald'.
Program terminated with signal SIGBUS, Bus error.
PID 8569 - core
TID 8569:
#0 0x00007f246cc89ed6 __memcmp_sse4_1
#1 0x0000557ebbc6f42c journal_file_init_header
#2 0x0000557ebbc77262 journal_file_open
#3 0x0000557ebbc42999 file_type_wanted
#4 0x0000557ebbc42e08 add_any_file
#5 0x0000557ebbc43832 add_directory
#6 0x0000557ebbc4401c add_root_directory
#7 0x0000557ebbc442e9 add_root_directory
#8 0x0000557ebbc446fc add_search_paths
#9 0x0000557ebbbacb5e show_journal_by_unit
#10 0x0000557ebbb8376d print_status_info
#11 0x0000557ebbb86a0b show_one
#12 0x0000557ebbb87954 show
#13 0x0000557ebbc20b1f dispatch_verb
#14 0x0000557ebbb90615 systemctl_main
#15 0x0000557ebbb9159f main
#16 0x00007f246cb3e731 __libc_start_main
#17 0x0000557ebbb75ae9 _start
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Assorted stuff
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systemctl --property doesn't validate if a requested property is valid or not,
and always returns with an exit code of 0, regardless of whether the requested
property exists or not.
How reproducible:
This works fine:
Id=multi-user.target
But put in a non-existing property:
Id=default.targets.service
Id=default.targets.service
0
[root@shou18lkvm8 ~]# systemctl show --property Id this.is.rubbish; echo $?
Id=this.is.rubbish.service
0
After:
sus@maximus bz-95593]$ ./systemctl show --property Id this.is.rubbish; echo $?
Can't display property this.is.rubbish. Unit this.is.rubbish.service does not
exist.
4
fixes #2295
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Now we just using constants for the init script exit status codes.
Replace those error codes with enum so that it's more meaningful
and readable.
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and make use of it everywhere
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Before:
[sus@maximus bz-1256858]$ systemctl status rsyslog.service;echo $?
● rsyslog.service - System Logging Service
Loaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor
preset: enabled)
Drop-In: /etc/systemd/system/rsyslog.service.d
└─50-CPUShares.conf
Active: inactive (dead) since Mon 2016-05-30 11:54:25 IST; 2h 26min ago
Docs: man:rsyslogd(8)
http://www.rsyslog.com/doc/
Process: 1159 ExecStart=/usr/sbin/rsyslogd -n $SYSLOGD_OPTIONS (code=exited,
status=0/SUCCESS)
Main PID: 1159 (code=exited, status=0/SUCCESS)
May 30 11:07:50 maximus systemd[1]: Starting System Logging Service...
May 30 11:07:50 maximus systemd[1]: Started System Logging Service.
May 30 11:54:25 maximus systemd[1]: Stopping System Logging Service...
May 30 11:54:25 maximus systemd[1]: Stopped System Logging Service.
3
[sus@maximus bz-1256858]$ systemctl status hello.service;echo $?
● hello.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
3
After:
$ ./systemctl status hello.service;echo $?
Failed to dump process list, ignoring: Access denied
● hello.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
4
[sus@maximus bz-1256858]$ ./systemctl status rsyslog.service;echo $?
Failed to dump process list, ignoring: Access denied
● rsyslog.service - System Logging Service
Loaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor
preset: enabled)
Drop-In: /etc/systemd/system/rsyslog.service.d
└─50-CPUShares.conf
Active: inactive (dead) since Mon 2016-05-30 11:54:25 IST; 2h 24min ago
Docs: man:rsyslogd(8)
http://www.rsyslog.com/doc/
Process: 1159 ExecStart=/usr/sbin/rsyslogd -n $SYSLOGD_OPTIONS (code=exited,
status=0/SUCCESS)
Main PID: 1159 (code=exited, status=0/SUCCESS)
May 30 11:07:50 maximus systemd[1]: Starting System Logging Service...
May 30 11:07:50 maximus systemd[1]: Started System Logging Service.
May 30 11:54:25 maximus systemd[1]: Stopping System Logging Service...
May 30 11:54:25 maximus systemd[1]: Stopped System Logging Service.
3
Fixes: 1092
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It's harder to miss the comment without the newline ;)
See https://github.com/systemd/systemd/pull/3336#issuecomment-221749423
for context.
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systemctl: return success for set-default, add-wants, add-requires...
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On the unified hierarchy, memory controller implements three control knobs -
low, high and max which enables more useable and versatile control over memory
usage. This patch implements support for the three control knobs.
* MemoryLow, MemoryHigh and MemoryMax are added for memory.low, memory.high and
memory.max, respectively.
* As all absolute limits on the unified hierarchy use "max" for no limit, make
memory limit parse functions accept "max" in addition to "infinity" and
document "max" for the new knobs.
* Implement compatibility translation between MemoryMax and MemoryLimit.
v2:
- Fixed missing else's in config_parse_memory_limit().
- Fixed missing newline when writing out drop-ins.
- Coding style updates to use "val > 0" instead of "val".
- Minor updates to documentation.
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We have to pass addresses of changes and n_changes to
bus_deserialize_and_dump_unit_file_changes(). Otherwise we are hit by
missing information (subsequent calls to unit_file_changes_add() to
not add anything).
Also prevent null pointer dereference in
bus_deserialize_and_dump_unit_file_changes() by asserting.
Fixes #3339
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Implement compat translation between IO* and BlockIO* settings
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https://bugzilla.redhat.com/show_bug.cgi?id=1336960
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