Michael Vogt
55356a7821
Currently the varlink interface for hostname is only available
after sysinit. This means it is not available until systemd-firstboot
is finished. But there is information like the boot-id in there that
is useful to get early.
My use-case is to query the system early via the varlink-http-bridge
and currently I can't get data from io.systemd.Hostname until
systemd-firstboot is completed which is a bit limiting.
So to fix it this commit sets DefaultDependencies=no on both the socket
and service units.
It also changes hostnamed.c to use
bus_open_system_watch_bind_with_description() which means we will
reconnect once dbus is available. This mimics what resolved-bus.c
is doing (and which was originally introduced in d7afd945b).
Thanks to Lennart for pointing this out.
48 lines
1.3 KiB
Plaintext
48 lines
1.3 KiB
Plaintext
# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Hostname Service
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Documentation=man:systemd-hostnamed.service(8)
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Documentation=man:hostname(5)
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Documentation=man:machine-info(5)
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Documentation=man:org.freedesktop.hostname1(5)
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DefaultDependencies=no
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Conflicts=shutdown.target
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Before=shutdown.target
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[Service]
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Type=notify
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BusName=org.freedesktop.hostname1
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CapabilityBoundingSet=CAP_SYS_ADMIN
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ExecStart={{LIBEXECDIR}}/systemd-hostnamed
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IPAddressDeny=any
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LockPersonality=yes
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MemoryDenyWriteExecute=yes
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NoNewPrivileges=yes
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DeviceAllow=/dev/vsock r
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PrivateNetwork=yes
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PrivateTmp=yes
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ProtectProc=invisible
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ProtectControlGroups=yes
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ProtectHome=yes
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ProtectKernelLogs=yes
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ProtectKernelModules=yes
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ProtectKernelTunables=yes
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ProtectSystem=strict
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ReadWritePaths=/etc /run/systemd
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RestrictAddressFamilies=AF_UNIX
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RestrictNamespaces=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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SystemCallArchitectures=native
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SystemCallErrorNumber=EPERM
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SystemCallFilter=@system-service sethostname
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{{SERVICE_WATCHDOG}}
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