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This is a host identifier of major relevance, since it is how you
connect to this system if it is a VM, hence expose this nicely.
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Almost all our man pages write it that way.
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Fixes #30293.
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These only go back to version 250 which is the first version to provide the
export-dbus-interfaces build target.
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Offer the firmware date as an epoch instead of the literal DMI string.
Closes #25679
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Expose /sys/class/dmi/id/bios_date as dbus property in hostnamed.
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Expose /sys/class/dmi/id/bios_vendor as dbus property in hostnamed.
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Since a long time the D-Bus spec knows a special bit in its message
header for indicating that "interactive" authentication is OK. The
original hostnamed API is before that was added hence most functions
expose that boolean as explicit argument.
For new added functions let's get rid of it, the message flag is good
enough and replaces it with complete functionality.
No new APIs should carry the "interactive" boolean flag explicitly as
argument anymore.
Follow-up for: 9697662915e47a4797b05003cb1970fe2b01e530
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Closes #22119.
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Fixes #19468.
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This follows the addition of DEFAULT_HOSTNAME= in os-release.
The distinction between the value from os-release or the env var and
the compile-time setting is not made in the api: HostnameSource is
"default" is all cases. I think that this level of detail is not needed,
because the users of this mostly care whether the hostname was set by
user configuration or not.
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In hostnamed this is exposed as a dbus property, and in the logs in both
places.
This is of interest to network management software and such: if the fallback
hostname is used, it's not as useful as the real configured thing. Right now
various programs try to guess the source of hostname by looking at the string.
E.g. "localhost" is assumed to be not the real hostname, but "fedora" is. Any
such attempts are bound to fail, because we cannot distinguish "fedora" (a
fallback value set by a distro), from "fedora" (received from reverse dns),
from "fedora" read from /etc/hostname.
/run/systemd/fallback-hostname is written with the fallback hostname when
either pid1 or hostnamed sets the kernel hostname to the fallback value. Why
remember the fallback value and not the transient hostname in /run/hostname
instead?
We have three hostname types: "static", "transient", fallback".
– Distinguishing "static" is easy: the hostname that is set matches what
is in /etc/hostname.
– Distingiushing "transient" and "fallback" is not easy. And the
"transient" hostname may be set outside of pid1+hostnamed. In particular,
it may be set by container manager, some non-systemd tool in the initramfs,
or even by a direct call. All those mechanisms count as "transient". Trying
to get those cases to write /run/hostname is futile. It is much easier to
isolate the "fallback" case which is mostly under our control.
And since the file is only used as a flag to mark the hostname as fallback,
it can be hidden inside of our /run/systemd directory.
For https://bugzilla.redhat.com/show_bug.cgi?id=1892235.
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Various users want to know what the fallback hostname is. Since it was made
configurable in 8146c32b9264a6915d467a5cab1a24311fbede7e, we didn't expose this
nicely.
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The semantics were significantly changed in c779a44222161155c039a7fd2fd304c006590ac7
("hostnamed: Fix the way that static and transient host names interact", Feb. 2014),
but when the dbus api documentation was imported much later, it wasn't properly
adjusted to describe those new semantics.
34293dfafd2a81d80727938199769906dab321bd which added systemd.hostname= also
added new behaviour.
Let's ove various bits and pieces around so that they are in more appropriate
places. Drop recommendations to set the hostname for DHCP or mDNS purposes.
Nowadays we expect tools that want to expose some different hostname to the
outside to manage that internally without affecting visible state. Also drop
mentions of DHCP or mDNS directly setting the hostname, since nowadays network
management software is expected to (and does) go through hostnamed.
Also, add a high-level description of semantics. It glosses over the details of
handling of localhost-style names. Later commits will remove this special handling
anyway.
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This documents the polkit actions for `SetDeployment()` and `SetLocation()` which previously were undocumented.
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Files found with:
for f in *; do \
l=`tr -d '[^(]' < $f | wc -c`; \
r=`tr -d '[^)]' < $f | wc -c`; \
if [ $l -ne $r ]; then \
echo $f $l $r; \
fi; \
done
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This has the advantage that the executables are always in place and we don't
need any units to exist on the bus, so we can eventually hook this up into
a normal build system. (Probably as a build time check.)
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See d35f51ea848ca76bd3747db69e8c5dd864e82bc3 for justification.
First use in each file is turned into a link to the documentation page.
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Follow-up for f92c8d1c67bcdeba097e3203d8aafe3a31230ada.
directives.index:
- This index contains 3398 entries in 19 sections, referring to 333 individual
+ This index contains 4316 entries in 19 sections, referring to 333 individual
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Co-Authored-By: Daan De Meyer <daan.j.demeyer@gmail.com>
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This replaces the api export tables with updated versions, and inserts
comments for all "undocumented" items. The slow work of documented them
is left for later ;)
lxml does some formatting changes that are not significant for lxml processing,
but generate spurious difference in the diff (namely: ulinks become one-line,
and double quotes are used instead of single quotes for element attribute
values). This should be a one-time thing: subsequent renegeration should be
idempotent with regards to this.
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