From c4708f132381e4bbc864d5241381b5cde4f54878 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= Date: Fri, 20 Dec 2013 20:25:39 -0500 Subject: tmpfiles: introduce the concept of unsafe operations Various operations done by systemd-tmpfiles may only be safely done at boot (e.g. removal of X lockfiles in /tmp, creation of /run/nologin). Other operations may be done at any point in time (e.g. setting the ownership on /{run,var}/log/journal). This distinction is largely orthogonal to the type of operation. A new switch --unsafe is added, and operations which should only be executed during bootup are marked with an exclamation mark in the configuration files. systemd-tmpfiles.service is modified to use this switch, and guards are added so it is hard to re-start it by mistake. If we install a new version of systemd, we actually want to enforce some changes to tmpfiles configuration immediately. This should now be possible to do safely, so distribution packages can be modified to execute the "safe" subset at package installation time. /run/nologin creation is split out into a separate service, to make it easy to override. https://bugzilla.redhat.com/show_bug.cgi?id=1043212 https://bugzilla.redhat.com/show_bug.cgi?id=1045849 --- tmpfiles.d/systemd-nologin.conf | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 tmpfiles.d/systemd-nologin.conf (limited to 'tmpfiles.d/systemd-nologin.conf') diff --git a/tmpfiles.d/systemd-nologin.conf b/tmpfiles.d/systemd-nologin.conf new file mode 100644 index 0000000000..d61232b534 --- /dev/null +++ b/tmpfiles.d/systemd-nologin.conf @@ -0,0 +1,11 @@ +# 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) and systemd-forbid-user-logins.service(5). +# This file has special suffix so it is not run by mistake. + +F! /run/nologin 0644 - - - "System is booting up. See pam_nologin(8)" -- cgit v1.2.1