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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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With this change runlevel 2, 3, 4 are mapped to multi-user.target for
good, and 5 to graphical.target. This was already the previous mapping
but is now no longer reconfigurable, but hard-coded into the core.
This should generally simplify things, but also fix one bug: the
sysv-generator previously generated symlinks to runlevel[2-5].target
units, which possibly weren't picked up if these aliases were otherwise
only referenced by the real names "multi-user.target" and
"graphical.target".
We keep compat aliases "runlevel[2345].target" arround for cases where
this target name is explicitly requested.
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Make use of the new sd_bus_set_allow_interactive_authorization() call to
globally enable interactive authorization. Also, turn on PK agent for
more calls.
This allows us to make use of the sd_bus_call_method() convencience
helper at more places.
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Otherwise systemd-reboot.service will remove the parameter that was set
before. This was broken in commit "b986229efe2cc96157aa14c37bab7843311bbef1
systemctl: bugfix for systemctl reboot command with argument"
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- correctly check for local vs. remote transport
- return after receiving error from expand_names()
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- report actual load error for units which could not be loaded
- make unit_find_paths() report all kinds of errors it encounters
(for consistency)
- consistently handle not-found errors in cat() and edit()
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After all it is now much more like strjoin() than strappend(). At the
same time, add support for NULL sentinels, even if they are normally not
necessary.
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This might be fixed one day, but for now it's better to fail.
https://bugzilla.redhat.com/show_bug.cgi?id=1186952
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According to systemctl man page, 'systemctl reboot [arg]' should work
without any errors. However, it does not work because of 'Invalid number
of arguments' error, except for 'reboot [arg]'. This patch fixes the bug
so that both of commands work in exactly the same way.
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This is exposed the memory.usage_in_bytes cgroup property on the bus,
and makes "systemctl status" show it in its default output.
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Types used for pids and uids in various interfaces are unpredictable.
Too bad.
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Plain implies a ... "plain" output.
Also do not say "No jobs" with --no-legend. We skip
reporting the number of jobs with --no-legend if there
are any, and 0 is also a number, and should be skipped.
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user-status" and "loginctl session-status"
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When there are a lot of split out journal files, we might run out of fds
quicker then we want. Hence: bump RLIMIT_NOFILE to 16K if possible.
Do these even for journalctl. On Fedora the soft RLIMIT_NOFILE is at 1K,
the hard at 4K by default for normal user processes, this code hence
bumps this up for users to 4K.
https://bugzilla.redhat.com/show_bug.cgi?id=1179980
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shared/install.c and use it
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https://bugzilla.redhat.com/show_bug.cgi?id=1175734
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If some sleep operation was not possible (e.g. because swap is missing),
we would try twice: once through logind, which would result in a clean error:
Failed to execute operation: Sleep verb not supported
and then second time by starting the appropriate unit directly, which is
more messy. If logind tells us that something is not possible (or already
in progress), report that to the user and quit. If logind is present and working
we should not try to work around it.
Loosely based on https://bugs.freedesktop.org/show_bug.cgi?id=87832.
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systemd-nspawn for containers
This is basically just a shortcut for "systemctl enable
systemd-nspawn@<foobar>.service", but does escaping.
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Pretty much everywhere else we use the generic term "machine" when
referring to containers in API, so let's do though in sd-bus too. In
particular, since the concept of a "container" exists in sd-bus too, but
as part of the marshalling system.
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The check for existing unit files and dropins is unified.
path_join() is updated to not insert duplicate separators.
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'systemctl cat' now works for templates too.
'systemctl edit' does not refuse to edit units that have changed on
disk. That restriction didn't seem useful, actually editing units that
have changed on disk before they are started is very reasonable.
'edit' with instances and templates works again:
Now:
$ build/systemctl edit getty@
Failed to copy /etc/systemd/system/getty@.service.d/override.conf to /etc/systemd/system/getty@.service.d/.override.confdff6290408c86369: Permission denied
$ build/systemctl edit getty@tty3
Failed to create directories for /etc/systemd/system/getty@tty3.service.d/override.conf: Permission denied
$ build/systemctl edit --full getty@tty3
Failed to copy /usr/lib/systemd/system/getty@.service to /etc/systemd/system/.getty@tty3.serviced3d175087e7e439b: Permission denied
Failed to create temporary file for /etc/systemd/system/getty@tty3.service: Permission denied
$ build/systemctl edit --full getty@
Failed to copy /usr/lib/systemd/system/getty@.service to /etc/systemd/system/.getty@.servicea3caad491c0f2f3d: Permission denied
Failed to create temporary file for /etc/systemd/system/getty@.service: Permission denied
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No functional change.
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Also make the error messages more specific to give a hint to the user
how to solve the problem.
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Containers do not really support .device, .automount or .swap units;
Systems compiled without support for swap do not support .swap units;
Systems without kdbus do not support .busname units.
With this change attempts to start a unsupported unit types will result
in an immediate "unsupported" job result, which is a lot more
descriptive then before. Also, attempts to start device units in
containers will now immediately fail instead of causing jobs to be
enqueued that never go away.
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Previously, if we provided getty@.service to systemctl edit it would
have failed when using the bus because it is an invalid unit name.
But it would have succeeded when searching in the filesystem.
Now, we check if we have a template, if we do we search in the
filesystem, if we don't have a templae and we can use the bus, we do.
Furthermore, if we provided getty@tty1.service it would not have worked
when searching the filesystem, but it would have worked with the bus.
So now, when using the filesystem we use the template name and not the
unit name, and the same when logging errors.
(Also did a refactoring to avoid a long function)
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resulting name is actually valid
Also, rename filename_is_safe() to filename_is_valid(), since it
actually does a full validation for what the kernel will accept as file
name, it's not just a heuristic.
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src/libsystemd/sd-bus/bus-common-errors.h
Stuff in src/shared/ should not use stuff from src/libsystemd/ really.
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The error was introduced in v215-343-g60731f32f1 'systemctl: do not
bother to mutate state on error', by causing strv_free to attempt to
free a static string. Simplify the whole thing by always keeping the
array in valid state.
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loop_write() didn't follow the usual systemd rules and returned status
partially in errno and required extensive checks from callers. Some of
the callers dealt with this properly, but many did not, treating
partial writes as successful. Simplify things by conforming to usual rules.
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