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systemd/units/systemd-machined.service.in
Lennart Poettering 0c28d51ac8 units: further lock down our long-running services
Let's make this an excercise in dogfooding: let's turn on more security
features for all our long-running services.

Specifically:

- Turn on RestrictRealtime=yes for all of them

- Turn on ProtectKernelTunables=yes and ProtectControlGroups=yes for most of
  them

- Turn on RestrictAddressFamilies= for all of them, but different sets of
  address families for each

Also, always order settings in the unit files, that the various sandboxing
features are close together.

Add a couple of missing, older settings for a numbre of unit files.

Note that this change turns off AF_INET/AF_INET6 from udevd, thus effectively
turning of networking from udev rule commands. Since this might break stuff
(that is already broken I'd argue) this is documented in NEWS.
2016-09-25 10:52:57 +02:00

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SYSTEMD

# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
[Unit]
Description=Virtual Machine and Container Registration Service
Documentation=man:systemd-machined.service(8)
Documentation=http://www.freedesktop.org/wiki/Software/systemd/machined
Wants=machine.slice
After=machine.slice
[Service]
ExecStart=@rootlibexecdir@/systemd-machined
BusName=org.freedesktop.machine1
WatchdogSec=3min
CapabilityBoundingSet=CAP_KILL CAP_SYS_PTRACE CAP_SYS_ADMIN CAP_SETGID CAP_SYS_CHROOT CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD
MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @obsolete @raw-io
# Note that machined cannot be placed in a mount namespace, since it
# needs access to the host's mount namespace in order to implement the
# "machinectl bind" operation.