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systemd/tmpfiles.d/credstore.conf

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tmpfiles: automatically create /etc/credstore/ and friends This adds a tmpfiles.d/ snippet for LoadCredential= style credentials directories in /etc/ and /run/. This is done primarily to ensure that the access modes for the dirs are set up properly, in the most restrictive ways. Specifically these are set to 0000, so that CAP_DAC_OVERRIDE is necessary to enumerate and read the credentials, and being UID=0 is not sufficient to do so. This creates /etc/credstore/, but leaves /run/credstore/ absent if missing, for now. Thinking is: the latter being non-persistent is created by software usually, not manually by users, and hence more likely right. But dunno, we might want to revisit this sooner or later. This is ultimately an exercise to advertise the LoadCredential= concept a bit, and do so in a reasonably secure way, underlining the safety of the concept.
2023-01-27 00:30:27 +03:00
# 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.
# See tmpfiles.d(5) for details
tmpfiles: use same credstore perms everywhere In b6033b706028a64e9affb79050ced1ad9a4f5b43 support was added to create {/etc|/run}/credstore{|.encrypted} via tmpfiles.d with perms 0000. These perms are so restrictive that not even root can access them unless it has CAP_DAC_OVERRIDE capability. This is creates the dirs at boot time In 24039e1207c169b18adf5234ad300ea3ba1b671e support was added to create /etc/credstore with perm 0700 from meson.build at build time. This patch makes unifies the two parts: 1. creates both /etc/credstore *and* /etc/credstore.encrypted in both places (the build system still won't create them in /run/, since that's pointless since not shipped, and the runtime won't create the dirs below /usr/lib/, since that's not generically writable anyway). 2. Both at runtime and at build time we'll create the dirs with mode 0700. This is easier for packaging tools to handle since they generally react pretty negatively on dirs they can't enumerate.
2023-05-30 16:13:38 +03:00
d /etc/credstore 0700 root root
d /etc/credstore.encrypted 0700 root root
z /run/credstore 0700 root root
z /run/credstore.encrypted 0700 root root
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